Surface Water Supply 

of the United States 

1949

Part 11. .Pacific Slope Basins in California

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1151

Prepared in cooperation with the States 

of California and Oregon and other 

agencies

TWS copy ls PUBLIC PROPFRTV

be reaoved from «! . nUr ttt ' ^ and ** not to

files '

5eo. 749} (« S. Sup. Vol. 2. pp%

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1951
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 

3. V. B. Wells__________________Chief, Nut-face Water Branch 

B. J. Peterson_________________Chief, Annual Reports Section

DISTRICT ENGINEERS (SURFACE WATER)

R. C. Bi-iggs___________________,_____San Francisco, Calif. 

K. N. Philips___________________________Portland, Oreg.

CONTEIITS

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............................................... IV

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

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

CampoCreek near Campo, Calif..................................................... 20

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

San Dieguito River near San Pasqual, Calif....................................... 26

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

Guejito Creek at San Pasqual, Calif.............................................. 28

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

San Luis Rey River Basin........................................................... 30

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif...................... 30

San Luis Rey- River below Pala diversion dam, near Pala, Calif.................... 31

San Luis Rey River at Monserate Narrows, near Pala, Calif........................ 32

San .Luis Rey River near Bonsall, Calif. .................................'......... 33

Santa Margarita River Basin........................................................ 34

Temecula Creek at Nigger Canyon, near Temecula, Calif............................ 34

Temecula Creek at Railroad Canyon, near Temecula, Calif.......................... 35

Santa Margarita River near Fall Brook, Calif..................................... 36

Santa Margarita River at Ysid6ra, Calif.......................................... 37

Murrieta -Creek at Temecula, Calif................................................ 38

O'Neill- -ditch near Ysidora, Calif................................................ 39

San Juan Creek Bas in......................................'......................... 40

San Juan Creek near San Juan Capistrano, Calif................................... 40

Trabuoo Creek near San Juan Capistrano, Calif.................................... 41

Aliso Creek Basin.................................................................. 42

Aliso Creek at El Toro, Calif.................................................... 42

Santa Ana River Basin. .............................................................. 43

Santa Ana River near Mentone, Calif.............................................. 43

Santa Ana River at E Street Bridge, near San Bernardino, Calif................... 45

Santa Ana River at Riverside Narrows, near Arlington, Calif...................... 46

Santa Ana River at Hamner Avenue, near Corona, Calif............................. 47

Santa Ana River at Auburndale Bridge, near Corona, Calif......................... 48

Santa Ana River below Prado Dam, near Prado, Calif............................... 49

Santa Ana River near Prado, Calif................................................ 50

Santa Ana River at Santa Ana, Calif.............................................. 51

Southern California Edison Co.'s canal below power plant No. 2, near Mentone,

Calif.......................................................................... 52

Mill Creek near Craftonville, Calif.............................................. 54

Mill Creek near Mentone, Calif................................................... 55

Mill Creek power canals 2 and 3 near Craftonville, Calif......................... 56

Mill Creek power canal 1 near Craftonville, Calif................................ 57

Plunge Creek near East Highlands, Calif........................................... 58

San Timoteo Creek near Redlands, Calif........................................... 59

Little San. Gorgonio Creek near Beaumont, Calif................................... 60

Warm Creek near Cdlton, Calif.................................................... 61

Strawberry Creek near Arrowhead Springs, Calif................................... 63

Waterman Canyon Creek near Arrowhhead Springs, Calif............................. 64

City Creek near Highland, Calif.................................................. 65

City Creek Water Co. 's canal near Highland, Calif................................ 67

Devil Canyon Creek near San Bernardino, Calif.................................... 68

Lytle Creek near Fontana, Calif.................................................. 69

Lytle Creek (east channel) at San Bernardino, Calif.............................. 71

Cajon Creek near Keenbrook, Calif................................................ 72

Lone Pine Creek near Keenbrook, Calif............................................ 73

Meeks & Daley Canal near Colton, Calif.....'...................................... 74

Day Creek near Etiwanda,- Calif................................................... 75

Cucamonga Creek near Upland, Calif............................................... 76
VI CONTENTS

Gaging-station records Continued.

Santa Ana River Basin--Continued. Page

San Jacinto River near San Jacinto, Calif........................................ 77

San Jacinto River near Elsinore, Calif........................................... 79

Elsinore Lake -at Elsinore, Calif................................................. 80

Temescal Creek near Corona, Calif. .................... t ............ ^............. 81

Bautista Creek near Hemet, Calif................................................. 81

San Antonio Creek near Claremont, Calif.......................................... 82

Southern California.Edison Co.'s conduit near Claremdnt, Calif................... 84

Santiago Creek at Santiago Dam, near Villa Park, Calif........................... 85

Santiago Creek near Villa Park, Calif............................................ 86

Santiago Creek at Santa Ana, Calif............................................... 87

San Gabriel River Basin............................................................ 88

East Pork San Gabriel River near Camp Bonita, Calif.............................. 88

San Gabriel River near Azusa, Calif,............................................. 89

San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif................... 90

San Gabriel River at Spring Street, near Los Alamitos, Calif..................... 91

West Fork San Gabriel River at Camp Rincon, Calif................................ 92

Rogers Creek near Azusa, Calif................................................... 93

Fish Creek near Duarte, Calif.................................................... 94

San Dimas Creek near San Dimas, Calif............................................ 95

Dalton Creek near Glendora, Calif................................................ 96

Little Dalton Creek near Glendora, Calif......................................... 97

San Jose Creek near Whittier, Calif.............................................. 98

Coyote Creek near Artesia, Calif................................................. 99

Brea Creek below Brea Dam, near Fullerton, Calif................................. 100

Brea Creek at Pullerton, Calif................................................... 101

Fullerton Creek below Fullerton Dam, near Brea, Calif............................ 101

Fullerton Creek at Fullerton, Calif.............................................. 102

Los Angeles River Basin............................................................ 103

Los Angeles River at Sepulveda Dam, Calif. ...................................... .^ 103

Los Angeles River at Los Angeles, Calif.......................................... 104

Los Angeles River near Downey, Calif............................................. 105

Los Angeles River at Long Beach, Calif........................................... 106

Pacoima Creek near San Fernando, Calif............................................ 107

Tujunga Creek near Colby Ranch, Calif............................................ 108

Tujunga Creek near Sunland, Calif................................................ 109

Tujunga Creek below Hansen Dam, Calif............................................ 110

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

Haines Creek near Tunjunga, Calif................................................ 112

Arroyo Seco near Pasadena, Calif................................................. 113

Rio Hondo near Montebello, Calif................................................. 114

Rio Hondo near Downey, Calif..................................................... 115

Sawpit Creek near Monrovia, Calif................................................ 116

Santa Anita Creek near Sierra Madre, Calif....................................... 117

Little Santa Anita Creek near Sierra Madre, Calif................................ 118

Eaton Creek near Pasadena, Calif................................................. 119

Mission Creek near Montebello, Calif............................................. 120

Ballona Creek Basin................................................................ 121

Ballona Creek near Culver City, Calif............................................ 121

Topanga Creek Basin................................................................ 122

Topanga Creek near Topanga Beach, Calif.......................................... 122

Malibu Creek Basin................................................................. 123

Malibu Creek at Crater Camp, near Calabasas, Calif............................... 123

Santa Clara River Basin............................................................ 124

Santa Clara River near Saugus, Calif............................................. 124

Piru Creek near Piru, Calif...................................................... 125

Hopper Creek near Piru, Calif.................................................... 126

Sespe Creek near Wheeler Springs, Calif.......................................... 127

Sespe Creek near Fillmore, Calif................................................. 128

Fillmore Irrigation Co.'s canal near Fillmore, Calif............................. 129

Santa Paula Creek near Santa Paula, Calif............................:.. f . ....... 130

Ventura River Basin................................................................ 131

Matilija Creek above reservoir, near Matilija, Calif............................. 131

Matilija Reservoir at Matilija, Calif............................I............... 132

Matilija Creek at Matilija, Calif................................................ 133

Ventura River near Ventura, Calif................................................ 134

North Fork Matilija Creek at Matilija, Calif..................................... 135

Coyote Creek near Ventura, Calif................................................. 136

Carpinteria Creek Basin............................................................ 137

Carpinteria Creek near Carpinteria, Calif........................................ 137

Atascadero Creek Basin............................................................. 138

Atascadero Creek near Goleta, Calif.............................................. 138

San Jose Creek Basin............................................................... 139

San Jose Creek near Goleta, Calif................................................ 139

Santa Ynez River Basin............................................................. 140

Santa Ynez River at Jameson Lake, near Montecito, Calif.......................... 140

Santa Ynez River-above Gibraltar Dam, near Santa Barbara, Calif.................. 141

Santa Ynez River below Gibraltar Dam, near Santa Barbara,' Calif.................. 142

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif............... 143

Santa Ynez River near Santa Ynez, Calif.......................................... 144

Santa Ynez River at Solvang, Calif............................................... 145

Santa Ynez River near Buellton, Calif............................................ 146

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

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

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

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

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

Gaging-station records Continued.

Santa Yhez River Basin Continued. Page

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

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

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

Salsipuedes Creek near Lompoo, Calif............................................. 15i

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

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

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

Guyana River near Ventucopa, Calif............................................... 15?

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

'Santa Maria River at Guadalupe, Calif............................................ 158

Alamo Creek near Santa Maria, Calif.............................................. 159

Huasna River near Santa Maria, Calif............................................. 160

Sisquoc River near Sisquec, Calif................................................ 161

Sisquoc River near Gary, Calif................................................... 162

Labrea Creek near Sisquoc, Calif................................................. 162

Tepusquet Creek near Sisquoc , Calif.............................................. 163

Arroyo Grande Basin................................................................ 164

Arroyo Grande at Arroyo Grande, Calif............................................ 164

Salinas River Basin................................................................. 165

Salinas River near Pozo, Calif................................................... 165

Salinas Reservoir near Pozo, Calif............................................... 166

Salinas River above Pilitas Creek, near Santa Margarlta, Calif................... 167

Salinas River near Santa Margarita, Calif........................................ 168

Salinas R'iver at Paso Robles, Calif.............................................. 169

Salinas River near Bradley, Calif................................................ 170

Salinas River near Spreckels, Calif.............................................. 171

Toro Creek near Pozo, Calif...................................................... 172

Nacimiento River near San Miguel, Calif.......................................... 173

San Antonio River at Pleyto, Calif............................................... 174

Arroyo Seco near Soledad, Calif.................................................. 175

Pajaro River Basin................................................................. 176

Pajaro River near Chittenden, Calif.............................................. 176

Pacheco Creek near Dunneville, Calif............................................. 177

Hvas Creek near Morgan Hill, Calif............................................... 178

San Benito River near Willow Creek School, Calif................................. 179

Tres' Pinos Creek near Tres Pinos, Calif.......................................... 180

San Lorenzo River Basin............................................................ 181

San Lorenzo River at Big Trees, Calif. ...i....................................... 181

Stevens Creek Basin................................................................ 182

Stevens Creek near Cupertino, Calif.............................................. 182

Guadalupe River Basin.............................................................. 183

Alamitos Creek near Edenvale, Calif.............................................. 183

Guadalupe River at San Jose, Calif............................................... 184

Los Capitancillos Creek at Guadalupe, Calif...................................... 185

Los Gatos Creek below Los Gatos, Calif........................................... 186

Campbell Creek at Saratoga, Calif................................................ 187

Coyote Creek Basin................................................................. 188

Coyote Creek near Madrone f Calif................................................. 188

Coyote Creek near Edenvale, Calif................................................ 189

Alameda Creek Basin................................................................ 190

Alameda Creek near Kiles, Calif.................................................. 190

San Lorenzo Creek Basin.............................................. ............. 191

San Lorenzo Creek at Hayward, Calif.............................................. 191

Kern River Basin................................................................... 192

Kern River near Kernville, Calif................................................. 192

Kern River below Isabella dam site, Calif........................................ 194

Kern River near Bakersfield, Calif............................................... 195

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

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

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

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

Tulare Lake Basin.................................................................. 200

Tulare Lake in Kings County, Calif............................................... 200

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

North Pork of Middle Pork Tule River near Springville, Calif..................... 202

Tule River near Porterville, Calif. ............ f................................. 203

Pacific Gas & Electric Co. conduit near Springville, Calif....................... 204

South Fork Tule River near Success, Calif........................................ 205

Kaweah River near Three Rivers, Calif............................................ 206

North Pork Kaweah River at Kaweah, Calif......................................... 207

Sand Creek near Orange Cove, Calif............................................... 208

Kings River above North Fork,.Calif.............................................. 209

Kings River at Piedra, Calif..................................................... 210

North Fork Kings River near Cliff Camp, Calif.................................... 211

North Fork Kings River below Raneheria Creek, Calif. .............................. 212

San Joaquin River Basin............................................................. 213

San Joaquin River main stem....................... t .............................. 213

San Joaquin River above Big Creek, Calif....................................... 213

San Joaquin River below Kerckhoff powerhouse, Calif............................ 214

Millerton Lake at Friant, Calif. ............................................... 215

San Joaquin River below Friant, Calif.......................................... 216

San Joaquin River near Mendota, Calif.......................................... 217

San Joaquin River near Dos Palos, Calif........................................ 218

San Joaquin River near El Nido, Calif.......................................... 219

San Joaquin River at Premont Ford Bridge, Calif................................ 220

San Jgaquin'River near Hevnnan, Calif........................................... 221

San JoSauin River near Vernalis, Calif......................................... 222
VIII CONTENTS

Gaging-station records Continued.

San Joaquin River Basin--Continued. Page

San Joaquin River tributaries above Presno River................................. 223

Florence Lake near Big Creek, Calif............................................ 223

South Pork .San Joaquin River near Florence Lake, Calif......................... 224

Ward tunnel at intake, Calif................................................... 225

Ward tunnel at outlet, Calif................................................... 226

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

Mono Creek near Vermilion Valley, Calif.... t.................................... 228

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

Big Creek below Huntington Lake, Calif......................................... 230

Pitman Creek below Tamarack Creek, Calif....................................... 231

Shaver Lake near Big Creek, Calif.............................................. 232

Huntington-Shaver conduit at outlet, -Calif...................................... 233

North Pork Willow Creek below Crane Valley Reservoir, Calif.................... 234

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.... 235

Big Sandy Creek near Auberrv, Calif............................................ 236

Pine Gold Creek near Friant', Calif............................................. 237

Madera Canal near Friant, Calif................................................ 238

Priant-Kern Canal at Friant, Calif............................................. 240

Cottonwood Creek near Friant, Calif............................................ 241

Little Dry Creek near Friant, Calif......"...................................... 242

James bypass near San Joaquin, Calif.... .\ ..................................... 243

Presno River Basin............................................................... 244

Presno River near Knowles, Calif............../................................ 244

Fresno River near Daulton, Calif............................................... 245

Tributaries and diversions between Presno River and Merced River................. 246

Chowchilla River at Buchanan dam site, Calif................................... 246

Chamberlain Slough near El Nido, Calif, .....,................................'.. 247

Salt Slough near Los Banos, Calif.............................................. 248

Merced River Basin............................................................... 249

Merced River at Happy Isles Bridge, near Yosemite, Calif....................... 249

Merced River at Pohono Bridge, near Yosemite, Calif............................ 250

Merced River at Bagby, Calif................................................... 251

Lake McClure at Exchequer, Calif............................................... 252

Merced River at Exchequer, Calif................................................ 253

Merced River near Stevinson, Calif............................................. 254

Tenaya Creek near Yosemite, Calif.............................................. 255

Merced River Slough near Newman, Calif......................................... 256

Orestimba Creek Basin............................................................ 257

Orestimba Creek near Newman, Calif............................................. 257

Tuolumne River Basin............................................................. 258

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.................................. 258

Tuolumne River near Hetch Hetchy, Calif........................................ 259

Don Pedro Reservoir near La Grange, Calif...................................... 260

Tuolumne River above La Grange Dam, near La Grange, Calif...................... 261

Tuolumne River at Modesto, Calif............................................... 262

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

Cherry Creek near Hetch Hetchy, Calif.......................................... 264

Lake Eleanor near Hetch Hetchy, Calif.......................................... 265

Eleanor Creek near Hetch Hetchy, Calif........................................'. 266

South Fork Tuolumne River near Oakland Recreation Camp, Calif.................. 267

Middle Tuolumne River at Oakland Recreation Camp, Calif........................ 268

Woods Creek near Jacksonville, Calif........................................... 269

Modesto Canal near La Grange, Calif............................................ 270

Turlock Canal near La Grange, Calif............................................ 271

Stanislaus River Basin........................................................... 272

Middle Fork Stanislaus River at Kennedy Meadows, Calif......................... 272

Middle Fork Stanislaus River at Sand Bar Plat, near Avery, Calif................ 273

Melones Reservoir at Melones Dam, Calif........................................ 274

Stanislaus River below Melones powerhouse, Calif............................... 275

Stanislaus River at Ripon, Calif............................................... 276

North Fork Stanislaus River near Avery, Calif................................... 277

South Pork Stanislaus River at Strawberry, Calif............................... 278

South Fork Stanislaus River near Long Barn, Calif.............................. 279

Philadelphia Canal near Strawberry, Calif...................................... 280

Tuolumne Canal near Long Barn, Calif........................................... 281

South San Joaquin Canal near Knights Perry, Calif.............................. 282

Oakdale Canal near Knights Ferry, Calif........................................ 283

Calaveras River Basin............................................................ 284

Calaveras River at Jenny Lind, Calif........................................... 284

Cosgrove Creek near Valley Springs, Calif...................................... 285

Stockton diverting canal at Stockton, Calif.................................... 286

Bear Creek Basin................................................................. 287

Bear Creek near Lockeford, Calif............................................... 287

Mokelumne River Basin............................................................ 288

Salt Springs Reservoir near West Point, Calif.................................. 288

North Pork Mokelumne River below Salt Springs Dam, Calif....................... 289

Mokelumne River near Mokelumne Hill, Calif..................................... 290

Mokelumne River at Lancha Plana, Calif......................................... 291

Mokelumne River near Clements, Calif........................................... 292

Mokelumne River at Woodbridge, Calif........................................... 293

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif................... 294

Cold Creek near Mokelumne Peak, Calif.......................................... 295

Bear River at Pardoe Camp, Calif............................................... 296

Middle Fork Mokelumne River at West Point, Calif............................... 297

South Pork Mokelumne River near West Point, Calif.............................. 298

Woodbridge Canal at Woodbridge, Calif.......................................... 299

Dry Creek near Gait, Calif..................................................... 300
CONTENTS IX

Gaging-station records Continued. 

San Joaquin River Basin Continued.

Mokelumne River Basin--Continued. Page

North Pork Cosumnes River at Cosumnes Mine, Calif.............................. 301

North Pork Cosumnes River near El Dorado, Calif................................ 302

Cosumnes River at Michigan Bar, Calif.......................................... 303

Cosumnes River at McConnell, Calif............................................. 304

Camp Creek near Camino, Calif.................................................. 305

Sly Park Creek near Pollack Pines, Calif....................................... 306

Goose Lake Basin................................................................... 307

DrewXJreek near Lakeview, Oreg................................................... 307

Cottonwood Creek near Lakeview, Oreg.............................................. 308

Sacramento River Basin............................................................. 309

Sacramento River main stem....................................................... 309

Sacramento River at Delta, Calif............................................... 309

Shasta Reservoir near Redding, Calif........................................... 310

Sacramento River at Keswick, Calif.........................'.,.................. 311

Sacramento River near Red Bluff, Calif......................................... 312

Sacramento River at Ejutte City, Calif.......................................... 313

Sacramento River at Colusa, Calif.............................................. 314

Sacramento River below Wilkins Slough, Calif................................... 315

Sacramento River at Knights Landing, Calif..................................... 316

Sacramento River at Verona, Calif.............................................. 317

Pit River Basin.................................................................. 318

Pit River near Canby, Calif.................................................... 318

Pit River at Fall River Mills, Calif........................................... 319

Pit River below Pit No. 4 Dam, Calif........................................... 320

Pit River at Big Bend, Calif................................................... 321

Pit River near Montgomery Creek, Calif......................................... 322

South Pork Pit River near Likely, Calif...................................'..... 323

Hat Creek near Hat Creek, Calif................................................ 324

Squaw Creek above Shasta Reservoir, Calif...................................... 325

McCloud River near McCloud, Calif.............................................. 326

McCloud River above Shasta Reservoir, Calif.................................... 327

Clear Creek Basin................................................................ 328

Clear Creek near Igo, Calif.................................................... 328

Cottonwood Creek Basin........................................................... 329

Cottonwood Creek near Cottonwood, Calif.......'................................. 329

Battle Creek Basin............................................................... 330

Battle Creek near Cottonwood, Calif. ............................................ 330

Antelope Creek Basin............................................................. 331

Antelope Creek near Red Bluff, Calif........................................... 331

Mill Creek Basin................................................................. 332

Mill Creek near Los Molinos, Calif............................................. 332

Elder Creek Basin................................................... t ............ 333

Elder Creek near Paskenta, Calif............................................... 333

Thomes Creek Basin............................................................... 334

Thomes Creek at Paskenta, Calif................................................ 334

Deer Creek Basin................................................................. 335

Deer Creek near Vina, Calif......*............................................. 335

Chico Creek Basin................................................................ 336

Chico Creek near Chico, Calif.................................................. 336

Stony Creek Basin................................................................ 337

Stony Creek near Hamilton City, Calif.......................................... 337

Butte Creek Basin................................................................ 338

Butte Creek near Chico, Calif.................................................. 338

Feather River Basin.............................................................. 339

Lake Almanor near Prattville, Calif............................................ 339

North Fork Feather River near Prattville, Calif................................ 340

North Fork Feather River at Big Bar, Calif..................................... 341

Feather River near Oroville, Calif............................................. 342

Feather River at Nicolaus, Calif............................................... 343

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif............. 344

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif."............ 345

Indian Creek near Crescent Mills, Calif........................................ 346

Spanish Creek at Keddie, Calif................................................. 347

Bucks Creek Reservoir near Bucks Ranch, Calif.................................. 348

West Branch Feather River near Yankee Hill, Calif.............................. 349

Concow Creek near Yankee Hill, Calif........................................... 350

Spring Valley ditch near Yankee Hill, Calif.................................... 351

Middle Fork Feather River near Clio, Calif..................................... 352

Middle Fork Feather River below Sloat, Calif................................... 353

Middle Pork Feather River at Bidwell Bar, Calif................................ 354

South Fork Feather River at Enterprise, Calif.................................. 355

Lost Creek near.Clipper Mills, Calif........................................... 356

Palermo Canal at Enterprise, Calif............................................. 357

Middle Fork Yuba River at Milton, Calif......................................... 358

Middle Fork Yuba River above Oregon Creek, Calif............................... 359

Yuba River at Narrows Dam, Calif............................................... 360

Yuba River at Marysville, Calif................................................ 361

Milton-Bowman tunnel at outlet, Calif.......................................... 362

Oregon Creek near North San Juan, Calif.................. ..................... 363

North Fork Yuba River below Goodyears Bar, Calif............................... 364

North Fork Yuba at Colgate diversion dam, Calif................................ 365

South Fork Yuba River near Cisco, Calif........................................ 366

South Fork Yuba River near Washington, Calif................................... 367

Bowman Lake near Graniteville, Calif........................'................... 368

Canyon Creek below Bowman Lake, Calif.......................................... 369

Bowman-Spaulding Canal at intake, Calif........................................ 370
X CONTENTS

Gaging-station records--Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

Deer Creek near Smartville, Calif.............................................. 371

Dry Creek near Brownsville.Calif.............................................. 372

Dry Creek near Virginia Ranch, Calif........................................... 373

Bear River near Auburn, Calif.................................................. 374

Bear River near Wheatland, Calif............................................... 375

Bear River Canal near Coif ax, Calif...,......................................... 376

American River Basin.............................................................. 377

North Fork American River at North Fork Dam, Calif............................. 377

North Fork American River at Rattlesnake Bridge, Calif......................... 378

American River at Fair Oaks, Calif............................................. 379

American River at Sacramento, Calif............................................ 380

. Middle 'Fork American River near Auburn, Calif.................................. 381

Rubicon River near Georgetown, Calif........................................... 382

Georgetown ditch above Pilot Creek, near Georgetown, Calif..................... 383

Pilot Creek near Georgetown, Calif............................................. 384

Georgetown ditch near Georgetown, Calif........................................ 385

South Fork American River near Kyburz, Calif................................... 386

South Fork American River near Camino, Calif................................... 387

Echo Lake conduit near Vade, Calif............................................. 388

Medley Lakes Outlet near Vade, Calif........................................... 389

Silver Lake Outlet near Kirkwood, Calif........................................ 390

Twin Lakes Outlet near Kirkwood, Calif......................................... 391

El Dorado Canal near Kyburz, Calif............................................. 392

Alder Creefc near Whitehall, Calif.............................................. 393

Silver Creek at Union Valley, Calif............................................ 394

Silver Creek near Placerville, Calif........................................... 395

South Fork Silver Creek near Ice House, Calif.................................. 396

American River flume near Camino, Calif........................................ 397

Webber Creek near Salmon Falls, Calif.......................................... 398

Colusa and Yolo Basins........................................................... 399

Yolo bypass near Woodland, Calif............................................... 399

Clear Lake at Lakeport, Calif.................................................. 400

Cache Creek near Lower Lake, Calif............................................. 401

Cache Creek near Capay, Calif.................................................. 402

Cache Creek at Yolo, Calif..................................................... 403

Kelsey Creek near Kelseyville, Calif........................................... 404

North Fork Cache Creek near Lower Lake, Calif.................................. 40S

Putah Creek near Guenoc, Calif................................................. 406

Putah Creek near Winters, Calif................................................ 407

Putah Creek near Davls, Calif.................................................. 408

Napa River Basin................................................................... 410

Napa River near St. Helena,'Calif................................................ 410

Conn Creek near St. Helena, Calif................................................ 411

Petaluma Creek Basin................................................................ 412

Petaluma Creek near Petaluma, Calif.............................................. 412

Novato Creek Basin................................................................. 413

Novato Creek near Novato, Calif............... ... ................................. 413

Russian River Basin................................................................ 414

Russian River near Hopland, Calif................................................ 414

Russian River near Healdsburg, Calif............................................. 415

Russian River at Guerneville, Calif.............................................. 416

East Fork Russian River near Calpella, Calif..................................... 417

Dry Creek near Cloverdale, Calif................................................. 418

Laguna de Santa Rosa near Graton, Calif.......................................... 419

Eel River Basin.................................................................... 420

Lake Pillsbury at Hullville, Calif............................................... 420

Eel River at Hullville, Calif.................................................... 431

Eel River at Van Arsdale Dam, near Potter Valley, Calif.......................... 422

Eel River at Scotia, Calif....................................................... 423

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 424

South Fork Eel River near Branscomb, Calif....................................... 425

South Fork Eel River near Miranda, Calif......................................... 426

Van Duzen River at Bridgeville, Calif............................................ 427

Klamath River Basin.................................:...............'............... 428

Williamson River below Sprague River, near Chiloquin, Oreg....................... 428

Upper Klamath Lake near Klamath Falls, Oreg...................................... 429

Link River at Klamath Falls, Oreg................................................. 430

Klamath River at Keno, Oreg...................................................... 431

Klamath River below Fall Creek, near Copco, Calif................................ 432

Klamath River at Somesbar, Calif................................................. 433

Smaller reservoirs in Klamath River Basin........................................ 434

Sprague River near Chiloquin, Oreg............................................... 435

Cascade Canal near Fish Lake, Oreg............................................... 436

"A" Canal at Klamath Falls, Oreg................................................. 437

Keno Canal at Klamath Falls, Oreg................................................ 438

Lost River diversion canal near Olene, Oreg...................................... 439

Diversion from Klamath River to Lost River near Olene, Calif..................... 440

Fall Creek at Copco, Calif....................................................... 441

Beaver Creek near Lilyglen, Oreg................................................. 442

Keene Creek at Hyatt Prairie, near Ashland, Oreg................................. 443

Keene Creek Canal near Ashland, Oreg..............................'............... 444

Shasta River near Yreka, Calif................................................... 445

Scott River near Fort Jones, Calif............................................... 446

Salmon River at Somesbar, Calif.................................................. 447

Trinity River at Lewiston, Calif................................................. 448
CONTENTS XI

Qaging-station records Continued.

Klamath River Basin--Continued. Page

Trinity River near Douglas City, Calif........................................... 449

Trinity River near Hoopa, Calif.................................................. 450

Smith River Basin.................................................................. 451

Smith River near Crescent City, Calif.............................;.............. 451

Miscellaneous discharge measurements.................................................. 452

Index................................................................................ 457

ILLUSTRATION

Page

Figure 1. Gaging-statlon structures: A, Fish Creek near Duarte, Calif.; B, Sacramento River at Delta, Call?.; C, North Fork Cache Creek near Lower 

Lake, Calif............................................................ 3

SURFACE WATER SUPPLY OP .PACIFIC S1#PE BASINS IN CALIFORNIA, 1949

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, 1949. The work was begun in 1888 in connection with 

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

etage and contents of lakes and reservoirs have been made at about 11,680 gaging stations 

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

90, 1949, 6,340 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 organisations have cooperated, 

slther by furnishing data or by assisting in collecting data. Cooperation of the first 

kind Is acknowedged in connection with the description of each station affacted; 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 ef 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 ths runoff is distributed uniformly both as regards time and area.

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

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

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

An "acre-foo*" is th« quantity of water required to cover an acre to the depth of 

1 foot and is equivalent to 43,860 cubic feet. The term Is commonly used in connection 

with storage for irrigation.

"Second-foet-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 hsigfct 

and discharge,*1

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

a reach of the channel, or an artificial structure.

1
2 SURFACE WATER SUPPLY, 1949, PART 11

"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.

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

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

discharge. Typical structures in use at gaging stations are shown 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 stags-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 3,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, 1949 , PART 11

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

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

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

or other special methods.

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

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

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

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

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

there is little or nd regulation; the minimum dally discharge if there is extensive regulation (also the minimum discharge if useful); and the minimum gage height (unless it is 

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

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

 » 

time of the crest, information pertaining to the accuracy of the records and conditions

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

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

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

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

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

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

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

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

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

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

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

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

that only the instantaneous maximum discharge Was revised; (m) that only the' Instantaneous 

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

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

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

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

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

and runoff in inches resulting from a revision Of the drainage area only are usually hot 

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 

Tor 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, 

pr 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 "Secpnd-foot-days" gives the sum 

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

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

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

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

feet per second during the month,

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 pf 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 qontrol 

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 reportsACCURACY 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 IS 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 noncontrlbuting areas or if 

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

947809 O - 51 - 2
6 SURFACE WATER SUPPLY, 1949, 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., 411 Grand Theater Building.

Augusta, Maine, 420 Statehouse.

Baton Rouge, La., 538 Florida Street.

Boston, Mass., 939 Post Office Building.

Champaign, 111., 605 South Nell Street.

Charleston, W. Va., 408 Union Building.

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

Chattanooga, Tenn., 442 Post Office Building.

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

Columbia, S. C., 207 Creason Building.

Columbus, Ohio, S590 West Hardin St., Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 311 West Washington Street.

Jackson, Miss., 208 Millsaps Building.

Knoxville, Tenn., 337 Post Office Building.

Louiaville, 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, ?la., Building 211, Camp Roosevelt.

Pittsburgh, Pa., 515 Plaza Building.

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

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

Trenton, N. J., 228 Federal Building. Washington, D. C., .General Services Administration Building.
PUBLICATIONS 7

West of the Mississippi River:

Austin, Tex., 302 West Fifteenth Street.

Bismarck, N. Dak., 7 Eltinge Building.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 476 New Customhouse.

Fort Smith, Ark., 6 Post Office Building.

Helena, Mont., 408 Federal Building.

Honolulu, 'Hawaii, 225 Federal Building.

Idaho Falls, Idaho, 204 Federal Building.

Iowa City, Iowa, 508 Hydraulic Laboratory, University of Iowa.

Lincoln, Nebr., 510 Rudge-Guenzel Building.

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

Oklahoma City, Okla., 203 Council Building.

Pierre, S. Dak., 207 Federal Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., 211 Ramsey Building.

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

Salt Lake City, Utah, 303 Federal Building.

San Francisco, Calif.., 702 Appraisers Building.

Santa Fe, H. Mex., 204 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 publishsd in the reports 

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

have been included for some streams.

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

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

Report

10th A, pt. 

llth A, pt. 

12th A, pt. 

13th A, pt. 

14th A, pt.

16th A, pt.

W 11....... 

18th A, pt.

19th A, pt. 

W 27 .

2 

2 

2 

3 

2

2

4

4

20th A, pt. 4 

W 35 to 39... 

21st A, pt. 4 

W 47 to 52... 

22d A, pt. 4. 

W 65, 66..... 

W 75.........

Character of data

Descriptive Information only. 

Monthly discharge and descriptive Information. ...............

Descriptive Information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge. 

Gage heights ................................................. 

Descriptions, measurements ratings, and monthly discharge... 

Descriptions, measurements and gage heights of streams east 

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

Descriptions, measurements and gage heights of stream west 

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

Descriptions, measurements, ratings, and monthly discharge. 

Measurements, ratings, and gage heights of streams east of 

the Mississippi River, and Missouri River and tributaries. 

Measurements, ratings, and gage heights of streams west of 

the Mississippi fllver, except Missouri River and tributaries .

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

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

Year

1884 to September 1890. 

1884 to June SO, 1891. 

1684-92. 

1688-93. 

1893-94.

1895.

1896. 

1895-96. 

1897.

1897.

1897. 

1898.

1898.

1898. 

1899. 

1899. 

1900. 

1900. 

1901. 

1901.

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

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

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

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

area covered by part 3 are published in Water-supply Paper-s 283, 303, 323, 353, 403, 433, 

453, 473, and 503, which contain records for the Ohio River Basin for those years.
Numbers of weter-supply papers eontainlng results of stream measurements, 189

-" ' tear

189& a..................

19Q5.. ..................

19O4. ...................

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

I91O. ...................

1914. ..................;

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

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

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

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

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

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

1951.. ..................

193S. ........... ........

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

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

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

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

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

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

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

1949 ....................

1

3£

47, h46 

65, 75 

62

97

0165, p!66, q!67 

0201, p202, q203 

241 

261

zei

301 

321 

351 

361

*4O1 

431 

451 

471 

501

521 

541 

561 

581 

601

621 

641 

661 

681 

696

711 

726 

741 

756 

781

8O1 

821 

851 

871 

891

321 

951 

971 

1001 

1031

IG51 

1081 

1111 

1141

bSS, 36

48 

65, 75 

b82, 83 

bS7, 98

*J167, 168 

 (203. 204 

242 

262

282 

302 

322 

352 

382

4 O2 

432 

452 

472 

502

5zz 

542 

. 562 

582 

602

622 

642 

662 

68?

697

7-12 

727 

742 

757 

7B2

8O2 

822 

852 

872 

892

3Z2 

952

972 

1002 

1032

1O52 

1O82 

1112 

1142

5

' 38

48, ±49 

65, 75 

83 

98

169 

205- 

243 

263

283

303 

323 

353 

383

4O3 

433 

453 

4T3 

503

523 

543 

563 

583 

603

623 

643 

663 

£83 

698

T13 

728 

743 

758* 

783

8O3 

823 

853 

875 

893

923

S53 

973 

IOCS 

1035

1O53 

1083 

1113 

1143

4" 35- 

49 

65, 75 

m82, 83

srr

17O 

206 

244

264

284 

304 

324 

3S4 

384

4O4 

434 

454 

474

504

5Z4

544 

564 

584 

604

624 

644 

664 

684 

639

714 

729 

744 

759 

784

8O4 

824 

854

874 

894

924

954 

974 

1004 

1334

105* 

1084 1114" 

1144

5

36

49 

k65, 66, 75 

k83, 85 

k98, 99. nlOO

171 

207 

245 

265

Z85 

305 

325

355 

385

4O5 

435 

455 

475 

505

525

545 

565 

585 

605

625 

645 

665 

685 

700

715 

730 

745 

760 

785

8O5 

825 

855 

875 

895

925 

955 

975 

1005 

1035

1055 

1085 

1115 

1145

6

cSS, 37 

49, 450 

66, 75 

84 

99

172 

208 

246 

266

286

306 

326 

356 

386

4O6 

436 

456 

47 

soe

526 

546 

56& 

586 

6O6

62C

646 

666 

686 

7O1

716 

731 

746 

761 

786

8O6

856 

876 

896

' 926

9S6 

978 

1006 

1O36

IO56

1116 

1146

7

37

so

k65, 66, 75 

k83, 84 

fc98, 99

JC16*, 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

927 

957 

977

1007 

1037

1057 

1087 

1117 

1147

66

a- Rating tsbles and index to WSP 35-39 e Mojave Hiver only. J toup, Platte, and Elk

contained in WSP 39. Monthly discharge f Kings and Kern Rivers and south Pacific slope. tributaries below Pl

for-1899 io eist Annual Report, part 4. g Rating tables and index to MSP 47-52 k Tributaries of Missis

h Janes River only. eontaire* in WSP 52. Monthly discharge n> Leke Ontario and trib

c Gallatln River. for I'oOO in 22<J Annual Report, part 4. Lawrence River proper

d Green and Ounnlson Rivers and Colorado h Schuylfcill River to James River. n Hudson Bay only. 

River above Gunnison River. I Scloto Hiver. o Hew England rivers on
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 

be,en 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 1?he body of the report. An index of 

the records obtained prior to 1904 has been published in wat;er-Supply Paper 119.

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

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

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

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

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

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

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

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

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

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

Jtepert Period Water-Supply

STATE 

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

Mississippi. 

Callfornia< Water resources of, part 1, Stream measurements in Sacra- 1387-1912

menta River Basin. 

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

joaquin River Basin, 

California, Water resources of, part 3, Stream measurements in the Great 1881-1912

Basin and Pacific Coast river basins* 

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

California Surface water supply of Sacramento River Basin.........,,.... 1595-1937

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

California southern. Surface water supply ef Pacific slope basins in*... 1894-1927 

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

Pacific, and Oreat basins in, 

Colorado, Water resources of........................... r ........... , ,.... 1984-1900

Georgia, Water resources of............................... f .............. 1895-1908

Massachusetts, Surface waters of......................................... 1348-1915

Ma'saechusetta, Hydrology of, Part 1, Summary of streeq-flow and preclpl- 1863-1945

tation records. 

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

Oregon, Surface water supply of................. T ........................ 1678-1910

Texas, Summary of records ef surface waters of.,.,.....,,,......,.,.,.... 1698-1937

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

Washington, Summary of nydremetric data in....,,.......,.,..,.....,...... 1878-1919

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

Wisconsin, northern. Water power of..,...........,....,,.,....,,.......,. 1895-1805

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

DRAINAGE BASIN

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

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

Colorado River Basin (Ariz., Calif., Colo., Utah, Wyo.), Surface waters 1891-1933

at base stations in. 

Colorado River Basin (Ariz., Calif., Nev., N. Hex., Utah), Surface water* 1838-1938

at stations on tributaries in lower. 

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

Sreat Salt take Basin, Water powers of............................. f ..... 1889.1930

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

Kennebee River Basin (Maine). Water resources of.................. r ...... 1890-1906

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

Missouri and W. Mary River Basins (Hont.), Surface waters of............ 1881-1938

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

Penobscot River Basin (Maine), Water resources of........................ J904-9

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

Rie Orande Basin (Colo., N. Hex., Tejc.), Water resources of.............. 1888-1913

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

St. Mary River. See St. Mary and Milk Rivers} Missouri and St. Nary River Basin. """* 

Sevler Lake Basin (Utah), Utilization «f surface water resources ef...... 1889-1937

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

899

900

447

597r«

636-0

636-E

637-A

74

197

415

1105

230 

?70 

B50 

4?* 

492 

870 

156 

469

395

617

918

1049

916

517

616

198

817 

538 

279 

192 

3S«| 

491

9EP 

109

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

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

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

these reports.
10 SURFACE WATER SUPPLY, 1949, PART 11 

State reports containing compilations of records of discharge

State

Do.........

Connecticut...

Do.........

Do.........

Louisiana.. ... 

Maine.........

Minnesota.... .

Mississippi. . . 

Missouri. .....

Do.........

Nebraska......

New Hampshire. 

New Jersey. ...

Hew Mexico.... 

North Carolina

North Dakota.. 

Do.........

Do.........

Period

1895-1915 

1904-47

1857-1928 

1903-48

1881-1935 

1881-1938

1900-1927

1912-33 

1898-1946 

1895-1906 

1907-19 

1908-11 

1900-1934 

1923-87 

1927-30 

1873-1932 

1873-1940

1941-42

1895-1919 

1919-24 

1924-28 

1928-35 

1935-39 

1910-20 

1903-38

1887-1920 

1929-37

1892-1943

1931-48 

1909-12

1900-1946 

1857-1936

1927-39

1889-1911 

1881-1936

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 

18S7-1945 

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 cf southeastern Alabama.

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado. 1 

Water resources of Colorado, Appendix 3, 

vols. 1 and 2, Stream-flow data of 

Colorado . 

Bull. 44, Water resources of Connecticut...

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

Pub. 112, Surface water supply of Indiana..

Water-supply Bull. 1, Summaries of yearly 

and flood flow relating to Iowa streams.. 

Water-Supply Bull, 2, Surface water 

resources of Iowa.

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

Oeol. Bull. 16, Surface water supply of 

Louisiana.

major streams In Maryland. 

Bull. 1, Summary of records of surface 

waters of Maryland and the. Potomao 

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 hydrographlc report ............... 

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

Bull. 33, Surface water supply of New 

Jersey. 

Special Rept. 5, Surface water supply of 

New Jersey. 

Special Rept. 9, Surface water supply of 

New Jersey. 

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

Bull. 34, Discharge records of North 

Carolina streams. 

Bull. 39, Discharge records of North 

Carolina streams. 

Hydrologlc Data on the Neuse River Basin. 

Hydrologlo Data on the Cape Pear River 

Basin. 

Hydrologlc Data on the Yadkln-Pee Dee River 

Basin. 

Hydrologlc 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.

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

Arkansas 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. 

Rivers and Lakes Commission. 

Division of Waterways. 

Department of Conservation.

00.

State Planning Board. 

Iowa Geological Survey.

Do.

Kansas Water Commission. 

Do. 

State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State planning Commission and 

Water Resources Commission. 

Department of Oeology, Mines, 

and Water Resources.

Do. 

State Drainage Commission.

Mississippi 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 Commission.

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 Experiment Station, 

Ohio State University. 

Office of the State Engineer.

Do. 

Do.

1 Contains records of yearly discharge only.

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

discharge.
PUBLICATIONS 

State reports containing compilations of records of discharge Continued

11

State

Oregon. .......

Pennsylvania..

South Carolina

Tennessee ..... 

Do......... 

Utah..........

Do.........

Washington. . . . 

Wisconsin.....

Period

1930-36

1890-1911

1884-1946

1874-1924 

1920-30 

1889-1905

1906-10

1878-1933 

1888-1914

Report

Bull. 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. 34, Water resources of Tennessee3 .... 

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

(Potomao, Rappahannock, and York River 

Basins).

(James River Basin).

(Roanoke and Chowan River Basins) .

(New, Tennessee, and Big Sandy River 

Basins). 

Bull. S, Monthly and yearly summaries of 

hydrometrio 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.

Virginia Oeologloal 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 North Carolina in the fennessee River Basin.

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

have Issued annual or biennial reports in which are contained records of discharge: California, 

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

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

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

The rep&rts 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 nsteworthy 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-a Some floods in the Rocky Mountain region,

636-C The New England flood of November 1927.

771 Floods in the United States, magnitude and frequency.

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

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

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

796-0 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 Susquehanrta 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 iad».

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.
12 SURFACE WATER SUPPLY, 1949, PART 11

RECORDS OP DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table lists gaging stations for the ar*ea covered by this report at which 

records of daily discharge were Collected during the water year October 1948 to September 

1949 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.

Becorda of discharge collected by agencies other than the Geological Survey

Stream

Alameda storm drain. .... 

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

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

Ballona Creek. . i ........ 

Po. ........... .......

DO.......J...........

Batavia storm drain. .... 

Bauera creek. ...........

Beryl Ave. storm drain..

Big Sand Creek. .........

Cerritos Channel. .......

City Creek, old channel.

Clear Lake Reservoir 

(elevation and discharge) . 

Clover creek. ........... 

Colton southwest storm 

drain.

Cox creek. .... ......... 

> 

Cucamonga Creek. ........

Daley Creek. .,'. ......... 

Daiton Wash. ............

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

Dog Creek i i

Dotainguez Channel ....... 

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

DO........... i....... 

f Monthly discharge 191!

Location

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

Short St., Wllmar, Calif .............

Nordhoff St., near Northrldge, calif. 

KWiSEi sec. 23, 1. 37 S., R. 9 E., 

8 miles northeast of Klamath Palls, 

Oreg. 

Below Devils Gate Dam, near Pasadena, 

Calif. 

SEi Bee. 3, T. 38 S., R. 19 E., near 

Lakevlew, Oreg. 

Sepulveda Blvd., near Culver City, 

Calif.

Calif. 

Below Culver Blvd., near Venice, 

Calif. 

Parker St . , north of Santiago creek, 

near Orahge, Calif. 

SEi see. 7, T. 38 S., R. 20 E., just 

downstream from Cox Creek, near 

Lakevlew, Oreg. 

19th St. and Beryl Ave., near Alta 

Loma, Calif. 

Below Big Daiton Dam, near Olendora, 

Calif. 

Fatten, Calif. .......................

Ventura Blvd., near West Los Angeles, 

Calif. 

Swj see. 2, t. 38 S., R. 19 E., 400 

feet upstream from road bridge, 

hear Lakevlew, Oreg. 

Ramona Ave . , near Chlno, Calif. ......

State Highway 126 near Castalc, 

Calif. 

Above Lake van Norden, near Soda 

Springs, Calif.

Seventh St., near Long Beach, Calif. 

Riverside Drive, near Chlno, Calif..-

Church Ave., near East Highlands, 

Calif. 

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

2 miles east of Upper Lake, Calif.... 

Culton Ave., south df Colton, Calif..

HEi sec. 8, T. 38 S., R. 20 E., 

about half a mile upstream from 

confluence with Bauers Creek, 

near Lakevlew, Of eg. 

Merrill Ave., south of Ontario, 

Calif. 

Hear Del Rosa, calif. ................ 

Merced Ave., near Baldwin Park, 

Calif. 

San Bernardlno county line, near 

Mlra Loma, Calif. 

Pacific Ave., near San Bernardlno, 

Calif. 

Near Academy, S miles northeast of 

Clovls, Calif. 

Carson Blvd., Torrance, (jallf .......

floseerana Ave., neat- Qardena, Calif. 

Half a mile north of Academy, Calif. 

SWt sec. 16, T. 41 S., R. 18 E., 18 

miles southwest of Lakeview, Oreg. 

-24j daily discharge 1924-48.

Period

1937-49 

1929-49

19S9-49 

1946-49

1942-49 

1945-49 

1948-49

1943-49 

1940-49

1948-49 

1935-49 

194S-49

1947-49 

1929-49 

1947-49 

1940-49 

1945-49

1942-49 

1945-49 

1946-49

1942-49 

1942-49 

1947-49 

1919-49f

1948-49 

1942-49

1928-49 

1945-49

1947-49

1947-49 

1941-49

1947-49 

1947-49 

1946-49 

1938-49

1942-49 

1946-49 

1945-49

Collected by

Orange Couhty Flood 

Control District. 

LOB Angeles County Flood 

Control District. 

Do. 

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Do. 

DC.

Do.

Orange County Flood control District. 

Oregon State engineer.

San Bernadino County 

Flood Control District. 

Loa Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Oregon State engineer.

San Bernardino County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Cooperative Snow Investigations, Corps of Engineers and U. S. Weather 

Bureau. 

Los Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Do.

Bureau of Reclamation.

Corps of Engineers . 

San Bernardlno County 

Flood Control District. 

'Los Angeles County Flood 

Control District. 

Oregon State engineer.

San Bernardino County 

Flood Control District. 

Do. 

Los Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Do.

Corps of Engineers .

Los Angeles County Flood 

Control District. 

Do. 

Corps of Engineers. 

Oregon State engineer.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 13

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

Stream

Dune (Zuras) Creek....... 

East Etlwanda Creek. ....

Do. , ............. , ...

Pullerton relief channel

Gerber Reservoir (eler 

vatlon and discharge). 

Harrison Creek. ,,.,.,..

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

Laguna Domlnguez. ...,.,.

La Veta Ave. storm drain

Little Sand Creek. ...... 

Little Santa Anita Creek 

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

Los Angeles River. ...... 

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

Lost River. ......,,...,.

Co...... ...,...,,....

Macey debris basin. .....

Mariposa, Reservoir. ..... 

Middle Creek. ...........

Mission ditch storm 

drain . 

Monrovia Creek. ..,.,..,.

Monrovia, storm drain. . . . 

Montebello storm drain.. 

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

Peters Canyon Wash ......

Placerlta Creek. .,,.....

Puddingstone Creek. . , . . , 

Reehe Canyon Creek. , . . . .

Rialto Baseline storm 

drain debris basin..

Rio Hondo diversion, ....

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

San Dimas Wash, ..,....,.

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

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

duit diversion. 

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

San Gabriel-AzusaDuarte tunnel diversion.

Santa Ana River. ....,..,

Location

At bridge on Roosevelt Highway, Calif.

Pacific Electric Railroad bridge near 

Etiwanda, CalifPasadena, Calif. 

Brighton Way west of Magnolia Ave., 

Fullerton, Calif. 

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

Lorella, Oreg. 

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

Intake, near southeast corner of see. 

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

Harbor Blvd., near Torrance, Calif...

Roseoe, Calif. 

La Veta Ave., east of Santiago Creek, 

southeast of Orange, Calif.

enif. 

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

270 fept below Sierra Madre Dam at 

Sierra Madre, Calif. 

Woodlawn Ave., near Sierra Madre, 

Calif.

La Veme, calif. 

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

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

Harpold Dam, in sj sec. 19, T. 39 S., 

R. llif E., 4 miles southwest of 

Bonanza, Oreg.

Dam), SEiSWt sec. 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. 

Above confluence with Sawplt Creek, 

near Monrovia, Calif. 

Peck Rd . , Monrovia, Calif, ........... 

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

Parthenla, St., near Van Nuys, Calif.. 

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

Ridge Route Highway, near Sangus, 

Calif.

Below Fuddingstone Dam, near San Dimas, Calif. 

Pigeon Pass Road, near Loma Linda, 

Calif. 

Baseline Ave., near San Bernardlno, 

Calif.

El Monte, Calif. 

Below Sani;a Fe Dam, Calif. ,....,., 

Calif. 

Riverside Drive, near Chlno, Calif....

west of Irvtne, Calif.

near San Dimas, CalifValley Blvd., near El Monte, Calif -- .

CalifGareia Canyon, Calif. ............... . 

Mouth of San Gabriel canyon near 

Azusa, calif.

Fontana, Calif. 

Yorba Bridge, n°rthe?st of Olive, calif,

Period

1930-48 

1947-49

1941-49 

1926-49 

1947-49 

1923-49 

1942-49

1936-49

1947-49 

1929-49 

1938-49

1929-49*

1938-49 

1945-49

1947-49 

1948-49

1942-49

1927-49

1932-49 

1932-49 

1928-49 

1930-49

1947-49

1927-49 

1947-49 

1942-49

1944-49

1947-49

1937-49

1933-49* 

1918-49

1934-49

Collected by

Los Angeles County Flood 

Control DistrictSan Bernardino County 

Flood Control District.

Control District,

Orange County Flood 

Control District. 

Bureau of Reclamation.

San Bernardino County 

Flood Control District, 

Bureau of Reclamation .

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, 

Bureau pf ReclamationSan Bernardino County 

Flood control District - 

Corps of Engineers.

San Bernardino County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Do. 

Do. 

PC, 

Orange County Flood Control District. 

Los Angeles County Flood 

Control District.

Flood Control District. 

Los Angeles County Flood 

Control District. 

San Bernapdino County 

Flood Control District. 

Do.

Control District. 

Do.

San Bernardino County 

Flood control District,

trol District.

Control District . 

Po.

Do.

Do.

Do,

Flood Control District. 

Orange County Flood Control District.

Records for some earlier years contained in water-supply papers of Oeologlcal Survey.
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) . 

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

Thompson Creek spreading 

ground Intake . 

Timber Creek. ...........

Tujunga Wash. ...........

branch) . 

Twin Creek. .............

Verdugo storm drain. ....

Villa Park storm drain.. 

Walnut Ave. storm drain. 

Walnut Creek. ........... 

Warm Creek. .............

West Anahelm storm drain

West Fork San Gabriel 

River.

WHdwood Creek. .........

Wilson Creek. ........... 

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

Location

.Arcadia, Calif.

county line, near Piru, Calif.

Calif.

Calif.

Above Solway St., Glendale, Calif....

NWi sec. 22, T. 38 S., R. 19 E., Just 

upstream from Barnes spring, 8 miles 

northwest of Lakeview, Oreg.

mont, Calif. 

Thompson Creek Dam near Claremont, 

Calif. 

Waterman Ave . , near San Bernardino,

Calif.

nardlno, Calif.

Sunland, Calif. 

Magnolia Blvd., North Hollywood, 

Calif.

Olive St., near Del Rosa, Calif ...... 

Eatelle Ave., Glendale, Calif ........

Center Dr. at Lincoln St., near Villa 

Park, Calif. 

Walnut Ave ., at Prospect Ave . , east 

of Orange, Calif. 

Covina Blvd., at Baldwin Park, Calif.

Sterling Ave., near San Bernardino,

Calif.

Manchester Blvd., west of Anaheim, 

Calif. 

Half a mile below San Gabriel dam 2, 

Calif.

Near Yueaipa, Calif. .................

Douglas St., near Yueaipa, Calif..... 

Old Highway 99, near Yueaipa, Calif..

Period

1927-49 

1927-49

1945-49

1940-49 

1945-49

1930-49

1942-49 

1936-49

1936-49 

1928-49 

1926-49 

1946-49

1936-49 

1934-49

1947-49

1942-49 

1947-49

Collected by

Control District.

Do.

Do.

Control District, 

Do.

Do.

Oregon State engineer.

Control District. 

Do.

San Bernardino County 

Flood Control District. 

Do.

Control District. 

Do.

San Bernardino County 

Flood Control District. 

Los Angeles County 

Flood Control 

District. 

Orange County Flood Control District. 

Do.

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. 

Do.

COOPERATION

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

of Public Works, C. H. Purcell, director, and Edward Hyatt, State engineer; Riverside and 

San Bernardino Counties. In Oregon the work was done under cooperative agreement with the 

State of Oregon, C. E. Stricklin, State engineer.

Financial assistance was furnished by the Corps of Engineers for the operation of 33 

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

Interior for the mainterance of 52 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 Hetch Hetchy project and of the flow of Alameda Creek near Niles was borne by the 

city and county of San Francisco.

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

California, by The California Oregon Power Co., Southern California Edison Co., Pacific 

Gas & Electric Co., and Merced, Modesto, Table Mountain, Thermalito, Turlock, and Woodbridge Irrigation Districts; in Oregon, by The California Oregon Power Co.
DIVISION OF WORK 15

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. Stricklln, State engineer.

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

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.

Location.- Water-stage recorder, lat. 32 6 34'1Q", long. 116° 45 < 40" , in sec. 27, T. 18 S., 

K. ' sf'E. , 0.5 mile upstream from confluence with Tscate Creek and 5.5 miles south of 

Dulzura.

Drainage area.- 316 square miles .

Records aval lable .. * October 1936 to September 1949.

Average discharge.- 13 years, 16.6 second-feet.

Extremes . - Maximum discharge during year, 143 second'-feet Jan. 12 (gage height, 3.88 

feet); no flow during most of year.

l936>-49: 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 e&ch year.

Remarks . - Records good except those for Dec. 23 to Jan. 4, which are fair. Flow reg-

"mated by Barrett and Morena Reservoirs, 10 and 18 miles, respectively, above station. Water diverted outside drainage basin by Diilzura conduit (see p. 19).

Day

1 

2 

3

4 

5

e

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

IS20

21 

22

2S 

24 

25

26 

27 

26 

29 

30 

31

Oct.

0 

0 

0

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0

8.4

4.0

0

0 

0 

0 

0

d

0 

0 

0 

0 

0 

0

Discharge, In second-feet > water year October 1948 to September 1949

Nov. Dec.

0 

0 

0

p

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

'0 

0 

f.2.1 .1

.6 

a.5 

a. 4 

a. 3 

a. 3 

a.S

Month

04 to 

Move 

Decs

Ca

Jartu 

Pebr 

Marc 

Apr! 

«ay.

June 

July 

Augu

sept 

wa

Jan.

aO.2 

a.l 

a.l 

0 

0

0 

0 

0

.1

.8

1.6 

25

SO 

30 

12

7.3 

5.1

3.3 

3.2 

6.2

10 

10 

?5 

17 

17

14 

12 

8.9 

7.0 

5.9 

S.I

Feb.

4.4 

4.4 

4.2 

4.4

3.9

3.7 

7.3 

14 

11 

3.9

7.6 

8.3

6.7 

6.1 

5.1

4.4 

4.2 

3.4 

3.2

3.0

2.5 

2.2 

2.0 

1.9 

1.9

1.7 

3.9 

7.0

lenflar year 1948

I.. . t . ..................................

'

ter year 1948-49 .......................

Mar.

5.6 

4.7 

3.9 

3.7 

3.5

3.2 

3.0 

2.8 

2.5 

2.3

2.3 

1.9 

1.6 

1.4 

1.2

1.2 

1.1 

1.1 

1.1

1.4

1.2 

1.2 

1.6 

1.9 

2.2

1.7 

1.4 

1.2 

1.2 

1.1 

1.9

Apr.

1.9 

1.5 

1.5 

1.2 

1.0

1.0 

1.1

1.0 

.9

.7

.5 

.5 

.5 

.5 

.4.

.5 

.5 

.4 

.6

.5

.4 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

Secondfoot -day a

12.4 0 ' 

2.7

52.28

277.1 

141.3 

66.1

18.7 

1.2 

0 

0 

0 

0

519. S

May

0.1.1 .1.1 .1

0 

0 

0 

0 

0

0 

0 

0 

0

.1

.1 .1 .1 .1

.1

.1

0 

0 

0 

0

0 

0

0 

0 

0 

0

Maximum

8.4 

o

.6

8.4

50 

14 

5.6 

1.9 

.1 

0 

0 

0 

0

50

June

Minimum

July

0

o

0

0

0 

1.7 1.1 .1

0 

0

0 

0

o

0

Aug.

Mean

0.40 

0 

.09

.143

8.94 

5.05 

2. IS 

.62 

.04 

0 

0 

0 

0

1.42

Sept.

Runoff in 

acre-feet

25 

0 

5.4

104

550 

280 

131 

37 

2.4 

0 

0 

0

o

1,030

No gage-height record) discharge computed Oh basis of probable discharge recession curves and 

Interpolation.

f Fragmentary gage-height record; discharge computed on basis of partly estimated gage height.
TIA JUANA RIVER BASIN 

Tia Juana River near-Dulzura, Calif.

17

Location.' Water-stage recorder, lat. 3£°33'50", long. 116 e 46'25". in sec. 33, T. 18 S., 

fmrS., 0.5 mile downstream from confluence of Cottonwood and Tecate Creeks and 5.5 

miles south of Dulzura. Altitude of gage, about 550 feet jfrotrt topographic map).

Drainage area.- 478 square miles, of Which 62 square miles is in Mexico.

Records available.- October 1936 to September 1949.

 Average discharge,. - 13 years, 25.3 second-feet.

Extremes.- Maximum discharge during year, 151 second-feet Jan. 12 (gage height, 3.51 feet): 

no" flow during several periods.

1936-49: Maximum discharge, 4,700 second-feet Feb. 7, 193V (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. Plow regulated by Morena and Barrett Reservoirs on Cottonwood

Discharge, in second-feet, nater year October 1947 to September 1948

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

6.0 

4.3

.1

a. 04

Nov.

eo.03 

6.04

Dec.

eO.04

.2 

.6 

.2 

.1

.1 

1.0 

1.0 

.8 

.6 

.4

Jan.

0.4 

.6 

.4 

.2

.1

.1 

.1 

.1 

.2 

.7

1.5 

23

46 

23

13

7.6 

6.5 

4.7 

3.8

6.5

14 

12

30 

21 

23

19 

17 

14 

11 

9.9 

9.2

Month

Oeto 

Move 

Deoe

Ca

Janu 

Pftbr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Feb.

7.8 

8.S 

9.2 

9.9 

9.2

8.5 

18 

28 

20

15

14

15 

13 

10 

9.2

7.8 

7.1 

S.9 

5.3 

4.7

4.2

3.8 

3,4 

3.4

5.4

3.8 

12 

17

Mber. ...................................

Mber. ..... j .....

Lender year 1948

ter year 1948-49 .......................

mt.

11

8.5 

7.1 

6.5 

6.5

5.9 

5.3 

4.7 

4i7 

4.7

5.3 

5.3 

4.7 

4.7 

4.2

3.8 

3.4 

3.4 

3.4 

3.8

3.4 

2.6 

4.2 

7.1 

8.$

5.3 

3.8 

3.4 

2.3 

2.0 

5.3

Apr.

5.9 

4.7 

4.7 

3.4 

2.3

2.0

2.0 

1.7 

1.2 

1.0

1.0 

1.0 

1.0 

1.0 

1.2

1.2 

l.p 

1.0 

1.2 

1.0

.9 

.6 

.6 

.4 

.3

.3 

.3 

.3 

.2 

.2

Secondfoot -days

12.84 

1.05 

5.84

152.73

323.8 

277.1 

1S4.8 

43.6 

6.80 

.24 

0 

0 

0

826.07

May

0.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

:1 

.1 

.1 

.2 

.2

.3 

.7 

.9 

.9

.7

.4 

.2

.1

, a. OS

Maximum

8.0

i!o

14

46 

28 

11 

5.9 

.9

0 

0 

0

46

June

LeO. 05

< e.62

, e.Ol

0

0 

0 

0 

6

U.Ol

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

juiy

Minimum

0

0

.1

3.4 

2.0 

.2

0 

0 

0 

0

0

Aug.

Man

0.414

.038 

.188

.417

10.4 

9.90 

4.99 

1.45 

.219 

.008 

0 

0 

0

2:26

Sept.

Runoff in 

acre-feet

25 

2.1 

12

302

642 

550 

307 

86 

13 

.3 

0 

0 

0

.1,640

e Caily discharge less than 0.1 sec. '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. 

3 and 4, T. 19 S., R. 2 W., 1.5 miles south of Nestor and 3 miles upstream from mouth. 

Datum of gage is 18.07 feet above mean sea level (levels by California Water & Telephone Co-.).

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

Records available.- October 1914 to September 1915, October 1936 to September 1949. 

Average discharge.- 14 years (1914-15, 1936-49), 77.0 second-feet.

Extremes.- Maximum discharge during year, 2,600 second-feet Jan. 13 (gage height, 5.31 

feet); no flow during several periods.

1936-49: Maximum discharge, 17,700 second-feet Feb. 7, 1937 (gage height, 8.20 

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

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

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

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

Diego, and by Rodriguez Reservoir, operated by Government of Mexico.

Discharge, in second-feet, water year October 1948 to September 1949

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. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1.3 

41 

1,140

190

rs4

f30 

22 

18 

15 

14

14 

12 

18 

40 

103

46 

30 

24 

20 

18 

15

Feb.

13 

12 

11 

11 

11

11 

14 

56 

50 

31

26 

26 

26 

22 

20

18 

16 

14

13 

12

11 

9.6 

8.7 

8.7 

7.7

8.2 

11 

20

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

wa

ber

lendar year 1943

ter year 1948-49 .......................

Mar.

23 

20 

17 

18 

18

12 

12 

11 

10

11

10 

9.1 

8.7 

8.2 

7.2

6.0 

6.0 

5.0 

4.1

3.0

2.3 

2.0 

fl.8

f2.2 

4.1

5.6 

5.6 

5.6 

5.3 

5.0 

6.8

Apr.

5.0 

4.6 

4.4

5.5 

3.0

3.0 

2.8 

2.4 

1.8 

1.6

1.2

.7 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

Secondfoot-days

0 

0 

0

296.4

1,865.3 

497.9 

265.6 

34.0

0 

0 

0 

0 

0

2,662.8

May

Maximum

0 

0 

0

30

1,140 

56 

23 

5.0 

0 

0-o

0 

0

1,140

June July

Minimum

0 

0 

0

0

0 

7.7 

1.8 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.81

60.2 

17.8 

8.57 

1.13 

0 

0 

0 

0 

0

7.30

Sept.

Runoff In 

acre- feet

" o

0 

0

588

3,700 

988

527 

67 

0 

0 

0 

0 

0

5,280

f Computed on basis of partly estimated gage-height
TIA JUANA RIVER BASIN 19

Dulzura conduit near Dulzura, Calif.

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

in sw£ 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 1949. 

Average discharge.- 15 years (1909-15, 1940-49), 17.9 second-feet.

Extremes.- Maximum daily discharge during year, 42 second-feet Apr. 23; no flow during 

several periods.

1909-15, 1940-49: Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow 

for periods each year.

Remarks.- Records good except those below 5 second-feet, which are fair. Conduit diverts from Cottonwood Creek at Barrett Dam in NW^ sec. 22, T. 17 S., R. 3 E.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

40 

40 

40 

40

40 

39 

40 

39 

39

38 

38 

38 

37 

35

34 

32 

14

0 

0

0 

0 

4-3 

39 

39

39 

40 

41 

41 

41 

40

Nov.

40 

40 

40 

39 

39

40 

40 

40 

40 

39

39 

38 

39 

40 

40

39 

39 

39

40 

40

40 

39 

39 

40 

40

40 

40 

40 

40 

40

pec.

40 

40 39 ' 

39 

38

39 

38 

38 

37 

37

36 

36 

36 

34 

36

32 

0

0 

0 

0

13 

29 

.3 

0 

0

0 

0 

3.3 

10 

8.3 

16

Jan.

21 

.6 

0 

0 

0

0 

0 

0

.1 

.1

0 

.3 

.2

.2 

.3

.3 

0 

0 

0 

.1

.1 

.1 

.2 

.1 

.1

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

1.0 

1.0 

1.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

Lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

0.6 

.7 

.6 

.5 

.5

.4 

.3 

.3 

.2 

.1

.3

.3 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.5

.2 

.1 

.6 

.8 

1.1

.4 

.3 

.3 

.3 

.2 

1.0

Apr,

0.5 

.5 

.4 

.2 

.1

4.6 

14 

21 

27

33

36 

36 

39 

41 

41

41 

41 

40 

40 

40

39

40 

42 

41 

41

40 

40 

39 

40 

41

Secondfoot-days

aee.s

1,188 

674.9

11,000.1

23.8 

3.3 

11.6 

899.3 

867.1 

85.8 

2.2 

0 

0

4,742.3

May

40 

40 

39 

38 

37

35 

35

34 

35 

36

36 ' 

37 

37 

37 

35

35

37 

37 

36 

38

36 

33 

30 

23 

11

.1 

0 

0 

0 

0 

0

Maximum

41

40 

40

41

21 

1.0 

1.1 

42 

40 

14 

.6 

0 

0

42

June

0 

0 

6.1 

14 

8.4

5.8 

6.1 

7.1 

5:3 

3.8

2.8 

2.1 

1.6 

1.0 

1.1

1.0 

1.6

3.2 

2.4 

2.1

1.6 

1.1 

1.1 

1.1 

.8

1.3 

1.1 

.7 

.8 

.7

July

0.6 

.6 

.5

.4 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

38 

0

0

0 

0 

.1 

.1 

0 

0 

0

o

0

0

Aug.

Mean

31.8 

39.6 

21.8

30.1

.77 

.12 

.37 

30.0 

26.0 

2.86 

.07 o

0

13.0

Sept.

Runoff In 

acre-feet

1,960 

2,360 

1,340

21,820

47

6.5 

23 

1,780 

1,720 

170 

4.4 

0 

0

9,410
20 TIA JUANA RIVER BASIN

Carapo Creek near Campo, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 3S°3gi20", long. 116"31'35", 

 "liVe'ec. 24, T. 18 S., R. 4 E., Just downstream from bridge on State Highway 94, about 

3.5 miles southwest of Campo.

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

Records available.- October 1936 to September 1949. 

Average discharge.- 13 years, 4.74 second*feet.

Extremes.- Maximum discharge during year, 5.2 second-feet Feb. 28 (gage height, 0.60 foot);

" ho ilow during several months.

1936-49: 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 except those for period of no gage-height record, which are poor.

Discharge, in second-feet;, water year October 1948 to September 1949

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 

26 

29 

30 

31

Oct.

OOOOOOOOO OIWOOOOOO

Nov. Dec, Jan.

O OOOOOOOOMonth

OctQ 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Feb.

o.l 

.2 

,2 

.2 

.2

.2

.2 

 4 

.4 

,9

.8 

.9 

.8 

.7 

i5

.4 

.4 

.3 

,3

.3

.2 

.2 

.E 

.2 

.4

.3

1.8

4.6

lendar year 1948

f

ter year 1948-49 .......................

Mar.

3.3 a.i

1.4 

.8 

.8

,7

i.7 

.7 

.7 

.7

.8 

.8 

.7 

.7 

,7

.6 

,6 

.6 

.7 

.7

.6 

.5 

.8 

1.0 

1,5

.9 

.7

.7 

.5 

.5 

.0

Apr.

1.3 

1.0 

,8 

.8 

.5

.5

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

,4

.4 

.4 

.4 

.? 

.6

.3 

.2 

,2 

.1 

.2

,2 

.2 

.2

,2 

.2

Seeondfoot-days

2.1 

0 

0

22.62

4.6 

20.3 

27.5 

12,7 

5.3 

.80 

0 

0 

0

73.50

«ay

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.1 

.2 

f3 

.3

.4 

.4 

.4 

.3 

.3

,2 

.2 

,1 

.1

,1

.1 

.1 

.1 

.1 

.1 

.1

Maximum

2

0

0

2

.8 

4.6 

3.3 

1.3 

.4 

,1 

0 

0 

0

4.6

June

0,1 

,05

.1

e.04

e.02 

e.Ol

Minimum

July

0 

0

0

0

0

.1

.5 

.1

.1 

.01 

0 

0 

0

0

Aug.

Mean

0.07 

0 

0

.062

 15 

,78 

.89 

.42 

.17 

.027 

0 

0 

0

.201

Sept.

Sunoff In 

aejre-feet

4.2

0 

0

45

9.1 

40 

54 

25

11 

1.6 

0 

0 

0

145

Peak discharge (baae, 20 gee .-ft.).-, No peak above base.

a Ho gage-lielght reccfrdj" discharge computed on basis of recorded range In stage, weather records, 

and reeords for Jamul Creek near Jamul and Quejito Creek at San Pasqual. 

e Daily discharge less than 0.1 sec.-ft.
OTAY RIVER feASIN 

Jamul Creek near Jamul, Calif.

21

Location.- Water-stage recorder and broad-crestsd weir with 5«foot ventari flume for 

 low-water notch, lat. aa-SS'lO", long- n6°53'05", in Nfc£ sec. 4, T. 18 S., R. IE., 

300 feet upstream from county road crossing at upper* end of Lower Otay Reservoir, 

1.4 miles downstream from Dulzura Creek, and 5.5 miles south of Jamul. Altitude of 

gage, about 500 feet.

Drainage area.- 72 square miles.

Records available.- April 1940 to September 1949.

Extremes,- Maximum discharge during year, 550 second-feet Jan. 12 (gage height, 2.9? 

"t'eet7; no flow July 16 to Sept. 30.

1940-49: Maximum discharge, about 4,000 Second-feet Dec. 1, 194? (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, 

toater diverted from Cottonwood Creek by Dulzura conduit discharges to Jamul Creek 

via Dulzura Creek and is included In discharge recorded at this station (see p. 19},

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

8 

S 

10

11 

12 

13 

14 

15

IB 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

41 

40 

41 

41 

41

41 

41 

41 

41 

41

41 

40 

41 

41 

40

38 

3.7 

36 

7.7 

4.5

3.7 

3.7 

3.5 

29 

38

39 

41 

42 

42 

42 

42

Octo 

Move 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Nov.

41 

41 

41 

41 

41

41 

42 

41 

41 

41

41

41 

41 

42 

42

42 

41 

41 

42 

42

41 

41 

42 

43 

42

41 

41 

42 

41 

41

bee.

41 

41 

414i

41

41 

41 

41 

40 

41

40 

41 

41 

40 

41

41 

19 

IS 

13 

13

13 

36 

11 

3.9 

2.8

2.S 

4.7 

2.3 

9.3 

11 

12

Month

Jan.

22 

9.0 

2.8

1.7 

1.5

1.2 

1.1 

1.1 

1.4 

2.0

4.0 

77 

81 

a29

alS

a9.8 

f6.2 

5.4 

4.3 

4.7

9.2 

8.6 

35 

20 

23

16

12 

9.8 

7.4 

6.4 

S.B

Feb.

S.2 

4.9 

5.2 

5.2 

4,9

4.7 

14 

2S 

17 

13

12 

15 

13 

10 

8.3

7.1 

6.4 

6.0 

S.6 

5.2

4.7 

4.3 

4.1 

3.9 

4.1

4.1 

7.3 

11

Lender year 1948 

ary

ter year 1946-49 ...... i ................

Mar.

7.fJ 

6.9 

6.7 

6.4 

6.9

6.2 

5.6 

5.6 

5.4 

5,4

5,8 

S.6 

5.2 

4,9 

4.7

4.5 

4.1 

3.7 

3.S 

4.5

4.7 

3.7 

4.7 

6.2 

7.1

5.4 

4.7 

4.3 

4.1 

3.7 

5.6

Apr.

5.6

5.4 

5.2 

4.5 

4.1

4.1 

15 

22 

29 

35

39 

40 

41 

44 

44

43 

43 

43 

43 

42

42 

42 

44 

42 

42

42 

41 

41 

41 

41

Secondfoot -days

1,061.1 

1,241 

823.5

11,220,5

433.4 

231.2 

164.0 

969.9 

932.7 

6B.O 

3.0 

0 

0

3,927.8

May

41 

41 

40 

39 

39

38 

36 

35 

35 

37

37 

38 

38 

40 

38

37 

39 

39 

38 

39

38 

33 

30 

25 

20

11 

a5.5

a3.0 

al.5 

al.O

a. 7

Maximum

42 

43 

43

43

81 

25 

7.8 

44

41 

11 

.2 

0 

0

81

June

aO.S 

.4 

.4

11 

7.8

6.2 

4.5 

7.1 

5.6 

4.3

3.2 

2.5 

1.7 

1.4 

1.1

.9

.6 

1.1 

1.7 

1.4

1.1 

.7 

.5 

.5 

.4

.3 

.3 

.3 

.3 

.2

Minimum

JUly

3.5 

41 

2.3

.1

1.1 

3.9 

3:7 

4.1

\Z 

0 

0 

0

0

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0 

0

Aug.

Mean

34.2 

41.4 

26.6

30.7

14.0 

8.26 

5.29 

32.3 

30.1 

2.27 

.97 

0 

0

16.2

Sept.

Runoff In 

acre-feet

2,100 

2,460 

1>630

22,240

860 

459 

325 

1,920 

1,850 

135 

6.0 

0 

0

11,740

a Mo gage-height record; discharge computed on'basis of recession curves and reaords for Dulzura 

conduit near Dulzura.

f Computed On basis of partly estimated gage-height record.

947809 0 - 51 - S
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 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 1949 (incomplete prior to 1920;.

Average discharge.- 34 years (1912-15,1917-19, 1920-49), 34.3 second-feet.

Extremes.- Maximum discharge.during year, 550 second-feet Jan. 13 (gage height, 2.09 feet); 

practically no flow during several months.

1912-49: Maximum discharge, 70,200 second-feet Jan. 27, 1916 (gage height, 25.1 

feet, site and datum then in use); practically no flow for several months each year 

except for a small amount of ground water that was forced to surface.

Remarks.- Records fair. Storage and diversions above station for city of San Diego water 

supply and La Mesa, Lemon Grove, and Spring Valley Irrigation District.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

e.0.01

e.02 

> e.03

 e.Ol 

e.02

Nov.

>e0.02 

e.Ol 

, e.02

Dec.

^eO.Ol 

.02

e.Ol

.02 

.03

\ e.Ol

.03 

I e.02

.03 

.05

[ e.02

Jan.

,e0.02

.03

.08 

.8 

93 

52 

24

12 

5.5 

3.8

3.0 

1.8

2.4 

2.4 

4.5 

6.6 

33

25 

17 

12

6.6 

5.5 

4.5

Feb.

3.8 

3.0 

3.0 

3.0 

3.8

3.8 

35 

60 

25 

20

16 

20 

16 

10 

9.1

6.6 

6.6 

6.6 

6.6 

5.5

4.5 

3.8 

4.5 

4.5 

5.5

5.5 

6.6 

17

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year!948-49 .......................

Mar.

9.1 

4.5 

3.8 

3.0

3.0 '

3.0 

3.0 

2.4 

2.4 

2.4

2.4 

3.0 

2.4 

2.4 

2.4

3.0 

3.0 

3.0 

3.0 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.0 

2.4 

2.4 

1.8 

2.4

Apr.

2.4 

2.4 

3.0 

3.0 

1.4

1.4 

2.4 

3.8 

4.5 

5.5

5,5 

4.5 

3.8 

3.8 

3.8

3.8 

2.4 

1.8 

1.8 

2.4

1.4 

.7 

.7 

.7 

.7

.4 

.4 

.4 

.4 

.2

Secondfoot -days

0.43 

.37 

.50

58.42

315,69 

315.3 

99.8 

69.4 

3.89 

.42 

.12 

0 

0

805.92

May

0.4 

.5 

.4 

.2 

.2

.1

:i .1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1.05

 e.04

Maximum

;

9.1

93 

60 

9.1 

5.5 

.5

0 

0

93

June

I eO.03 

 e.02

. e.Ol

Minimum

:

0

3.0 

1.8 

.2

0 

0 

0

0

July

eO.Ol

0 

0 

0

0 ' 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

Mean

0.014 

.012 

.016

.160

10.2 

11.3 

3.22 

2.31 

.125 

.014 

.004 

0 

0

2.21

Sept.

Runoff In 

acre-feet

0.9 

.7

1.0

ne

626 

625 

198 

138 

7.7 

.8 

.2 

0 

0

1,600

e Dally discharge less than 0.1 sec.-ft.
SAN DIEGOITO 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", 

aoout on line between sees. 17 and 20, T. 12 S., R. 2 E., 0.5 mile upstream from Black 

Canyon Creek, 1 mile downstream from unfinished Sutherland Dam, and 4 miles southwest 

of Mesa Grande. Altitude of gage, about 1,700 feet.

Drainage area.- 58 square miles.

Records available.- October 1936 to September 1949. December 1912 to September 1928 at 

site I mile upstream.

Av.erage discharge.- 28 years (1913-28, 1936-49), 28.8 second-feet.

Extremes.- Maximum discharge during year, 109 second-feet Feb. 7 (gage height, 1.81 

reet); no flow during several months.

1912-24, 1936-49: Maximum discharge, 21,000 second-feet Jan. 27, 1916, by slopearea method; no flow at times.

Remarks.- Records good. Small diversions above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

.29 

30 

31

Oct. Nov. Dec.

0 

0 

O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

1.8 

1.7 

1.3

1.3 

5.2 

3.3 

2.1 

1.5 

1.3

Jan.

1.3 

2.6 

2.9 

1.6 

1.5

1.6 

1.6 

1.6 

2.1 

2.5

2,2 

3.5 

8.5 

6.9 

6.4

4.8 

3.6 

3.6 

3.8

8.1

31 

21 

44 

20 

15

12 

11 

10 

8.5 

6.9 

7.9

Feb.

6.4 

8.5 

12 

18

17

18 

35 

46 

24 

20

18 

26 

20 

16

15

15 

16 

17 

17 

18

17 

17 

18 

20 

26

21 

34 

29

Month

Oato 

Hove 

Deee

Ca

Janu 

Febr 

Mare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

21 

20 

18 

17

21

20 

18 

17 

17 

16

18 

18

16 

15

15

15 

16 

16 

17 

28

21 

18 

34 

29

31

23 

24 

26 

26 

23 

31

Apr.

32 

28 

26 

23 

21

20 

20 

20 

18 

17

16 

16 

16 

15 

15

16 

15 

15 

15 

15

13 

12 

12 

11 

11

11 

9.2 

6.9 

6.9 

6.9

Secondfoot-days

0 

0 

19.5

558.4

258.0 

564.9 

645 

478,9 

197.9 

67.5 

1.9 

0 

0

2,233.6

May

5.1 

5.1 

5.1 

5.1 

5.1

4.8 

4.2 

3.8 

.0 

.8

.8 

.2 

.0 

6.9

12

12 

11 

14 

13 

11

8.5 

6.9

5.5 

5.5 

5.1

.2 

.2 

.5 

.5 

.5 

4.5

Maximum

0

0 

5.2

40

44 

46 

34 

32 

14 

4.5 

.4 

0 

0

46

June

4.5 

4.5 

4.5 

4.5 

4.0

3.3

3.5 

3.5 

3.5 

3.0

2.6 

2.5 

2.5 

1.8 

1.6

1.7 

1.6 

1.6 

1.9 

1.9

1.4 

1.2 

1.0 

.7 

.6

.7 

1.1 

1.0 

.9 

.4

July

0.3 

.4 

.3 

.2 

.3

.2 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

0 

0

0

1.3 

6.4 

15 

6.9 

3.8 

.4 

0 

0 

0

0

Aug.

Mean

0

0 

.63

1.53

8.32 

20.2 

20.8 

16.0 

6,38 

2.25 

.06 

0 

0

6.12

Sept.

Runoff in 

acre-feet

0 

0 

39

1,110

L gg ..

1,120 

1,280 

950 

393 

134 

3.8 

0 

0

4,430

Peak discharge (base. 110 sec.-ft.).- Ho peak above base.
24 SAN DIE(5UITO RIVER BASIN

Santa Ysabel Creek near Ramona, Calif.

Location. -T Water-stage recorder, lat. 33°06'2P", long. 116°51'30", In NEi sec. 27, T. 12 

sv, if", 1 E., 1.5 mile? downstream from Temescal Creek and 4.5 miles north of Ramona. 

Datum of gage IB 847.88 feet above mean sea level (levels by city of San Diego Water 

Dept . ) .

Drainage area.- 110 square miles.

Records available . r February 1912 to February 1923, October 1943 to September 1949. 

dischare . < 16 years (1913-22, 1943-49), 36-. 6 second-feet.

Extremes.- Maximum discharge during year, 184 second-feet Feb. 7 (gage height, 2.35 feet); 

'no now during several periods.

1912-23, 1943-49: Maximum discharge, 28,400 second-feet Jan. 27, 1916 (gage height, 

14,0 feet); no flow during several months 1931, 1,946-49.

Remarks - Record? fair. Small diversions ab,ove ststlon.

Discharge, in second-feet, water year October 19*8 to September 19*9

Day

1 

2

5 

4

5

6 

7

e

9

10

11

12 

13 

14 

15

16 

17

J8

19 

20

21 

22 

23 

?4 

25

26

27 

26

29 

50 

31

eet. Nov. pec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

9 

0 

0

0 

0 

f.2.1

0

.1

5.9 

6.1 

1.9 

1.7 

1.3

Ja,n.

*.3

a. 2

4.6 

8.7 

1,4

1.3 

1.7 

1.9 

3,0 

6.1

7.8 

9.6 

16 

12 

9.6

6.9 

5.3 

4.5 

4.5

16

55 

30 

91 

33 

?3

19 

17 

16

14 

13 

12

Feb.

11 

12 

14 

22 

20

26 

44 

96 

43 

32

28 

39 

28 

23 

22

21 

?0 

20 

20 

20

20 

19 

19 

20 

30

26 

41 

50

Month

Octo 

Hove

Dece

C«

Janu 

Febr 

Mare 

Apr! 

May.

June 

Jvjly 

Augu

Sept

Wa

ber. ....................................

mber. .,. .. .,..._....._....__..........

lendar year 1948

ary, ....................................

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

ember. ,,.....,,...,...........,.,.......

ter y»r 1948-49 .......................

Mar.

34 

30 

27 

26 

29

27 

25 

24 

23 

22

25 

26 

22 

20 

20

20 

19 

19 

19 

29

24 

21 

42 

41 

47

34 

32 

31 

33 

29 

38

Apr.

44 

40 

37 

32 

28

27 

?6 

25 

23

21

20 

19 

18 

17 

16

16 

15

15 

16 

15

13 

12 

12 

11 

11

11 

11 

9.8 

9.4 

9.4 

r

Seeondfoot-days

0 

0 

17.3

7,51.5

443.4 786' 

858 

579.6 

289.2 

65.4 

.8 

0 

0

3,039.7

Hay

8.2 

7.5 

7.5 

7,8 

7.6

6.8 

6.2 

4.9 

4.9 

5.9

5.9 

5.6 

5.2 

9,0

17

21 

18 

21 

20 

18

13 

11 

9.4 

7,8

7.1

5.9 

5.6 

5.6 

5.2 

5.2 

5,2

Maximum

0 

0

6,1

55

91 

96 

47 

44 

21 

5.2 

.4 

0 

0

96

June

5.2

S.2 

5.2 

5,2 

5,2

3,9 

3.7 

3.5 

3,2 

2.7

2.4 

2.1 

2,3 

2.1

1.4

1.3 

1.1 

1.1 

1.2 

1.4

1,3 

.8 

.6 

.4 

f.4

a. 4

a. 4 

f.6 

.S 

f.6

July

Minimum

0 

0 

0

0

1.3 

11 

19 

9.4 

4.9 

.4 

0 

O 

0

0

ao.4 

a. 2 

a.l 

a.i 

aO

aO 

ao 

aO 

39 

aO

aQ 

ao 

ao 

O 

0

0 

0 

0 

0 

0

0 

0 

0

9 

o

0 

0 

0

0

0 

0

Aug.

Mean

0 

0 

.56

2.05

14.3 

28.1 

27.7 

19.3 

9.33 

2.18 

.03 

0 

0

8.33

Sept.

Runoff In

acre-feet

0 

0 

34

1,490

879 

1,560 

1,700 

1,150 

574 

130 

1.6 

0 

0

6,030

Peak discharge (base 110. see.-ft.).- Jan. 23 (7 a,m.) 140 aec. Tft.; Feb. 7 (12 p.m.) 184 sec.-ft. 

a No gage-heignt rec&rajais'cnarge computed on basis of 1 discharge meaaurement, 1 observation of 

no flow, Interpolation, and by comparison vith records for station near Mess Grange. 

f Computed on basis of partly estimated ?agerheight record.
SAN DIEGU1TO RIVER BASIN 25

Santa Ysabel Creek near San PaSqual, Calif.

Location.-Water-stage recorder and concrete control, lat. 33°05'00", long. lie'SS'OO", 

" J """"irf £E£ sec. 31, T. 12 fl. ( R. IE., 1.5 miles dovmBtream 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 a va ilab1e.- April 1947 to November 1949 (irrigation seasons only). December 1906 

to"September'I9l2 at site 0.25 mile downstream, published as Santa Ysabel Creek near 

Escondldo.

Remarks.- Records good. Small diversion above station.

Discharge» in second-feet, April to November 1949

Day

1

2

3

4

S

e

7

8

9

10

11

12

13

14

15

16

17ie

19

20

21

22

23

24

25

26

27

26

29

30

31

Jan. Feb.

t24

Mar. Apr.

.

-

-

tt

-

_

-

..

.

"

_

_

.

J.

~

_

-

_

.

-

_

m

1211

10

10

9.8

9.2

8.6

8.9

-

Hay

6.1

7.6

7.6

7.8

7.8

7.6

6.8

6.6

6.2

6.8

7.6

7.6

7.8

10

16

21

19

21

20

19

15

13

11

9.2

8.1

6.. 8

6.4

6.0

5.6

5.2

5.2

Month

April 22-30 .................................

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

September. i .................................

October. ...................... ^ ' ^ 

November. ,........................... > 

June

5.1

5.1

5.2

4.7

4.9

5.8

3.2

3.2

2.7

2.3

1.8

1.6

1.7

1.8

1.2

.9

.8

.6

.8

1.0

.9

.6

.3

.3

.2

.2

.1

.1

.3

.2

"

July)

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

0

Aug.

£KS£. """ **

91.5

313.4 21

55.8 5.2

.2 .1

0 0

0 0

0 0

.1 .i

Sept. Oct.

Minimum

^

6

ff »£.1

0

0

0

0 

0

Nov.

0

0

0

0

0

0

fi

0

0

.1.

0

0

0

0-

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

nfci.. ftunoff ih 

aere-fe«t

1 rt 0 4 JJ1 J>U.£ i.oJL

10.1 622

1.66 111

.01 .4

0 0

0 0

0 0 

,003 .2

915

t Result of discharge measurement.

f Computed on basis of partly estimated gage-height record.
26 SAN DIEGUITO RIVER BASIN

San Dieguito River near San Pasqual, Calif.

Location.- Water-stage recorder, lat. 33°04'00 M , long. 117°02'05", in San Bernardo Grant, 

l.b 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 topographic map).

Drainage area.- 250 square miles.

Records available.- April 1947 to November 1949 (irrigation seasons only).

Remarks.- Records good. Diversions for irrigation and pumping from wells along river in 

San Pasqual Valley. 'There is an undetermined amount of underflow at this station.

Discharge, in second-feet, April to November 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan. Feb. ' Mar.

Month

Apr! 

May. 

June

July 

Augu 

Sept 

Goto

1 26-30.

Apr.

-

-

-

-

-

_

-

-

-

-

_

-

-

-

-

.

-

-

-

-

_

-

-

-

-

0.9

.4

.4

.3

.4

-

May

0.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.7

2.2

4.1

4.6

3.5

2.3

1.4

.3

.2

.2

 -2.

.2

.2

.2

.1

St. .....................................

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

ber . ....... .............................

i. ...................................

The period. ......... ....................

June

0.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

o

0

0

0

0

0

d

0

o

0

0

0

0-

July

Secondfoot-days

2.4 

24.5 

2.0

0 

0 

0 

0 

0

-

Aug.

Maximum

0.9 

4.6 

.2

0 

0 

0 

0 

0

-

Sept.

Minimum

Oct.

0.3

.1 

0

0 

0 

0 

0

0

-

-

Nov.

Mean

0.48 

.79

.07

0 

0 

0 

0

0

-

-

Dec.

Runoff In 

acre-feet

4.8 

49 4.0

0 

0 

0 

0 

0

-

58
SAN DIEGUITO RIVER BASIN 27

Gueiito Creek near San Pasqual, Calif.

Location.- Water-stage recorder and concrete control, lat. 33°06'55", long. 116°57'10", 

in mfc sec.33 (unsurveyed), T. 12S.,R. 1 W., and 3 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 1949.

Extremes.- Maximum discharge during year, 30 second-feet Feb. 7 (gage height, 3.35 feet); 

 no flow Oct. 1-17.

1946-49: Maximum discharge, that of Feb. 7, 1949; no flow during several periods 

of each year.

Remarks.- Records good below 7.5 second-feet; fair above. Diversion about a quarter of a 

mile above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

? 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o 

0 

0 

0

0 

0 

4.4 

.5

e.04

.1

.1 

.2 

.2

Nov.

0.2 

.1 

.2 

.2

 e.06

.1 

.1

.2

.1

.1 

^ e,08

.1

.1

.2 

.2

.1 

.1 

.1

Dec.

0.1 

.1 

.2 

.6 

.3

.3 

.3 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.3

.3 

.8 

.7 

.4

.4 

1.3 

1.9 

.7 

.6

.6 

4.5 

1.2 

.7 

.6 

.6

Jan.

0.5 

.8 

.6

.5 

.5

.4

.4 

.4

.7 

1.5

2.0 

2.4 

11

7.3 

3.0

1.5

1.0

1.0

6.2 

4.6 

14 

5.1 

2.6

1.7 

1.4 

1.2 

1.0 

1.0 

1.0

Feb.

0.9 

1.0 

1.7 

Z.Z 

1.7

2.0 

9.0 

12 

4.2

2.6

2.3 

4.5

2.6 

1.8

1.6

1.5

1.3 

1.3

1.1 

1.1 

1.1 

1.2 

1.8

1.6 

3.0 

3.3

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febn 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1943

ter year i ?UB_AQ .......................

Mar.

2.2 

1.7 

1.5 

1.4 

1.8

1.5 

1.4 

1.3 

1.2 

1.1

1.6 

1.4 

1.3 

1.2 

1.2

1.1

1.0 

1.2

1.3 

1.2 

2.6 

2.9 

3.0

1.8 

1.6 

1.6 

1.4 

1.3 

2.5

Apr.

1.8 

1.6 

1.5 

1.3 

1.1

1.1 

1.1 

1.1 

1.0 

.8

.7 

.6 

.7 

.7 

.7

.7

.7 

.9 

.9

.8 

.6

.6 

.6 

.6

.7 

.6 

.6 

.6 

.6

Secondfoot -days

5.88 

3.12 

19.8

98.83

81jO 

70.9 

48.9 

26.0 

19.1 

3.12 

.99 

.31 

.30

279.42

May

0.6 

.6 

.6 

.6 

.6

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.9

1.0

1.0

1.3 

1.6 

1.4

1.0 

.8 

.6 

.4 

.3

.2 

.2 

.2 

.3 

.3 

.3

Maximum

4.4 

.2 

4.5

4.5

14 

12 

3.0 

1.8 

1.6 

.3

14

June

0.3 

.3 

.2 

.2

.1

.1

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

I e.08

I e.05 

f e.07

July

I eO.07 

. e.05

 e.02

Minimum

0 

.1

0

.4 

.9 

1.0 

.6 

.2

0

Aug.

eO.Ol

Mean

.190 

.104 

.64

.270

2.61 

2.53 

1.58 

.87 

.62 

.104 

.032 

.010 

.010

.766

Sept.

eO.Ol

Runoff in 

acre-feet

12 

6.2 

39

195

161 

141 

97 

52 

38 

6.2 

2.0 

.6 

.6

556

e Daily discharge less than 0.1 sec.-ft.
28 SAN DIEGUITO RIVER BASIN

Guejito Creek at San Pasqual, Calif.

Location. ' Wat;er-stage recorder, lat. 33°05'35", long. 116' 57' 45", in NW£ sec, 3S, T. 12 

5,, 'K. 1 W. , at mouth, at highway bridge 1 mile west of San Pasqual. Altitude of 

gage, about 410 feet (from topographic map).

Drainage are,a.- 28 square miles.

Records avallable. . February to September 1915, October 1916 to September 1917, and Octo~ 

Ber^sse to September 1949.

Extremes.' Maximum discharge during year, 30 second-feet Jdn, 13 (gage height, 8.88 feet): 

no"flow during most of year.

1915, 1916-17, 1946-49; Maximum daily discharge, 118 second-feet Feb. 10, 1915, 

estimated; no flow during several months of each year,

Remarks.- Records poor. Diversion for irrigation about 2 miles upstream.

Discharge, in seaond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Qcto 

Move 

Pece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

1.9 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

2 

0 

0 

0 

0

Jan.

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

3.8 

.3 

0

0 

0 

0 

0

0

0 

.8 

4.4 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0

0 

0

0 

1.0 

4.0 

2.0 

.9

,6 

2.7

1.6 

.7 

.5

.4 

,2

.2 

.2 

.1

,1 

.1 

.1 

.3 

,7

.6 

l.P 

2.2

Month

b*r. ....................................

mber ....................................

[endar year 1948 

ax*y

i,., .............................:..,...

ter year 1948-49 .......................

Mar.

1.1 

.8 

.8 

.8 

,9

.8 

,7 

.7 

.7 

,7

.9 

.7 

.6 

.6 

.6

,6 

.6 

.6 

.7 

.8

.7 

,7 

1.2 

1.2

1.4

 9 

.8 

.8 

.6 

.6 

1.1

Apr.

0,8 

.9 

.8 

.8 

.8

.8

.8 

.7 

.6 

.5

.5 

.5 

.5 

 5 

.5

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4

.3 

.3

.3 

.3 

.3 

.3 

.3

Secondfoot-days

1.9 

0 

2

9.35

9.5 

21.1 

24.7 

15.8 

12.0 

3.4 

1.9 

0 

0

92.3

May

0.4 

.4 

.4 

.4 

.4

.4

.3

.3 

.3 

.3

,4 

.3 

.3 

.3 

.3

.3

.3 

.6 

1.0 

.8

.6 

.5 

.4 

.3 

.3

.3 

.3

.3 

.3 

.3 

,2

Majitaum

1,9 

0 

2

2

4.4 

4.0 

1,4 

.9 

1.0 

.2 

.1 

0 

0

4.4

June

0.2 

.2 

.2 

.2 

,1

.1 

.1 

.1 

,1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.3, 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum

July

0 

0 

0

0

0 

0 

.6 

.3 

.2 

.1 

0 

0 

0

0

OOOOOO OOOO Q

Aug.

Mean

0.06 

0 

.1

.036

.31 

.75 

.80 

.53 

.39 

.11 

.06 

0 

0

.25

Sept.

Runoff In 

acre-feet

3.8 

0 

4

19

19 

42 

49 

31 

21 

6.7 

3.8 

0 

0

183

Mote.- No gage-height record Oct. 1 to Feb. 28, May 18-23, July 10-19} discharge computed on basis 

of rragmer»tary gage-height record, 5 discharge measurements, 10 observations of no flov, Interpo- 

-latlon, and records for station near San PasquaJ.
SAN DIEGUITO RIVER BASIN 

Santa Maria Creek near Ramona, Calif.

29

Location.- Water-Stage recorder and concrete control, lat. 33S 03'15", long. IWSS'SS", 

in' J5E$ sec. 11, T. 13 S., R. 1 W., 4 miles above mouth and 5 miles west of Ramona. 

Altitude of gage, about 1,280 feet (from topographic map).

Drainage area.- 58 square miles.

Records .available.- November 1912 to September 1920, October 1946 to September 1949.

Average discharge.- 10 years (1913-20, 1946-49), 8.44 second-feet.

Extremes.- Maximum discharge during year, 12 second-feet Feb. 7 (gage height, 1.80 feet); 

no I'low during most of year.

1912-20, 1946-49: 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 except those for periods of no gage-height record, which are poor, 

city Of Ramona pumps water from stream above station.

Discharge, In second-feet, water year October 1943 to September 1949

Day

1 

2 

3

4

S

6

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

2$

26 

27 

28 

29 

30 

31

OctO 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July

Augu 

Sept

Wa

Oct. MoV. Dec.

Month

Jan.

0 

0 

0 

0 

0

aO 

aO 

ao

aO

aO 

a.l 

a2

a.l 

aO

aO 

aO 

aO 

ad 

a.l

a2 

a. 5 

a6.5 

f4.9 

1.9

1.0 

.5 

.2

.1 

.1

a

Feb.

0.1 

.1 

.2 

.3 

.3

.3 

2.6 

6.5 

2.1 

.9

.7 

1.2 

.6 

.4 

.3

.2 

.2 

.2 

.2 

.2

.2 

.1 

.2 

.3

.3

.3 

.6

.5

nber. ...................................

lendar year 1948

ter year 1946-49 .......................

Mar.

0.3 

.2 

.2

.2 

.4

.2 

.2 

.2

.1 

.1

.2 

.1 

.1 

.1

0

.1

0 

0

.1 

.1

.1 

0 

.1 

.1 

.1

a 

a 

a 

.1

.3

Apr.

0.2 

.2

.2

.1 

.1

a 

.1

a 

a

0

0 

0 

0 

0 

0

0

.1 

.1

a

0

o 

0 

0 

0 

0

0 

0 

0 

0. 

0

dec endfoot-days

0

0 

0

4.70

20.1 

20.1

4.1 

1.5 

0 

0 

0 

0 

0

45.8

Bay

Maximum

0 

0 

0

.1

6.5 

 .5 

.4 

.2 

0 

0 

0 

0 

0

6.5

June

Minimum

July

0 

0 

0

0

0

a

0 

0 

0 

0 

0 

0 

0

0

AUg.

Mean

0 

0

0

.013

.65 

.72 

.13 

.05 

0 

0 

0 

0 

0

.13

Sept.

RunOff in 

acre-feet

0 

0 

0

9.3

40 

40 

8.1 

3.0 

0 

0 

0 

0

0

91

Peak diacljarge (Mae.. 1,0 seC,-ft, f!,- Feb. 7 (9:30 p.m.) 12 sec.-ft. 

a No gage-height gage-height reooiPdj record) discharge discharge computed computed on basis of records records for Santa Ysabel Craek near Ramona 

and near Mesa Orande and Quejlto Creek near San Pasqual. 

f Computed on baals of pp»-tly estimated gage-height record.
30 SAN LUIS REY RIVER BASIN

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

Location - Staff gage, lat. 33°14'15", long. 116°45'50", in NW£ sec. 10, T. 11 S., R. 2 

hi., at Henshaw Dam, 5 miles north of Mesa Grande. Datum of gage is 2,620 feet above 

mean sea level.

Drainage area.- 209 square miles at Henshaw Dam.

Records available.- January 1923 to September 1949. October 1911 to January 1923 at 

station 1 mile below dam site.

Average discharge.- 11 years (1911-22), 60.4 second-feet, below dam site; 27 years 

(LWZ-WI, 35.8 second-feet, inflow to Lake Henshaw, exclusive of 90 percent of the 

rainfall on the lake surface.

Remarks.- Records of runoff represent all water reaching Lake Henshaw, exclusive of 90 

percent of the rainfall on the water surface of the reservoir, computed on the basis 

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

Capacity and area ratings for this reservoir are based on surveys made in 1923. Capacity of reservoir at spillway level (gage height, 107.00 feet), 203,581 acre-feet. 

Dead storage, 100 acre-feet below lowest outlet at gage height 10.5 feet, included in 

these records. Gage read daily. Since storage of water was begun, runoff as computed 

has been exclusive of 90 percent of the computed rainfall on the water surface of the

/ reservoir. During the current year rainfall on the water surface of the reservoir 

amounted to 3,025 acre-feet. No diversion above Lake Henshaw. No flow over spillway 

since dam was completed. Water is released down San Luis Rey River for diversion, 

downstream for irrigation, power, and domestic use.

Cooperation.- Basic records furnished by Vista Irrigation District.

Monthly runoff, water year October 1948 to September 1949

Month

Calendar year 1948...

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

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

Water year 1948-49. . .

Lake He

Gage height 

(feet)

-

59 22

57.25

-

nshawt.

Contents 

(acre-feet)

-

30,726

-

Change 

in

contents 

(acrefeet)

-30,586

-3,443

-22,089

Draft

(acrefeet)

23,678

3 327

2,581

22,221

Net 

evaporation 

(acrefeet)

+12,496

1 752

1,317

+11,135

Spill 

plus

leakage 

(acrefeet)

0

0

0

Runoff

(acrefeet)

5,588

2 314

525

349

475

455

11,267

t On last day of month.

Note.- Net evaporation, as used in computing this record, is total evaporation less 90 percent of 

rainfall on water surface of reservoir.
SAN LUIS REY RIVER BASIN 31

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

Location.- Water-stage recorder, lat. 33°21'30", long. 117°02'50", in SW£ sec. 25, T. 9 S., 

'K. a W., below Pala diversion dam, 1.8 miles east of Pala. Altitude of gage, about 500 

feet (from topographic map).

Drainage area.- 326 square miles.

Records available.- May 1944 to December 1949 (irrigation seasons only).

Remarks.- Records good. Flow regulated by Lake Henshaw. Diversions above station, mainly 

by Escondido Mutual Water Co. U. S. Indian Irrigation Service diverted about 600 acrefeet during period May'1 to Nov. 30 at Pala diversion dam. In the accompanying table 

are shown discharge measurements of San Luis Rey River above Pala diversion dam made 

during 1949.

Cooperation.- One discharge measurement and five observations of no flow were furnisned by. 

banta Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge measurements of San Luis Rey River above Pala diversion dam, near Pala, Calif.

Date

Mar. 28 

Apr. 4 

14 

May 6 

25 

June 16

Discharge 

(sec. -ft.)

16.3 

9.1 

6.1 

2.8 

Z.Z 

1.8

Date

July 5 

12 

19 

Aug. 4 

10 

29

Discharge 

(sec. -ft.)

2.0 

t.84 

.90 

t.SO 

.91 

.97

Date

Sept. 8^ 

9 

27 

29 

Oct. 19 

Nov. 18

Discharge 

(sec. -ft.)

to. 32 

.82 

t.72 

1.0 

1.2 

1.9

Date

-Nov. 22 

29 

Dec. 2 

30

Discharge 

(sec. -ft.)

tl.8 

1.8 

2.0 

t2.5

t Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, March to December 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

. Jan. Feb. Mar.

.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

.

-

flO

9.5

7.5

9.0

Apr.

8.5

7.0

6.5

5.7

6.0

6.5

6.5

6.0

5.4

5.2

4.6

4.3

4.0

4.0

3.8

3.2

2.7

2.5

2.4

f2.1

al.7

fl.4

f.6

a. 3

a.l

aO

aO

aO

aO

aO

-

May

aO

aO

aO

aO

aO

O

0

0

0

0

0

0

0

0

0

.1

.1.1

.1.1

' 00

0

0

0

0

0

0

0

o

0

Month

March 28-31 .................. .t .............

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

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

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

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

Sept ;mber ...................................

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

December 1-2. ...............................

The period ................................

June July

Secondfoot-days

36.0

101.0

.5

0

0

0

0 

0

.7

0

-

Aug.

Maximum

-

8.5

.1

0

0

0

0 

0

.7

-

Sept. Oct.

Minimum

1-

0

0 

0

0

0

0 

0

0

-

Nov.

O

O

0

O

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

Mean

-

3.37

.02 

0

0

0

0 

0

.02

-

Dec.

0

0

_

-

_

_

_

-

_

_

_

_

-

.

_

_

_

-

_

_

_

_

-

_

_

_

_

.

-

Runoff in 

acre -feet

71

200

1.0 

0

o

0

0 

0

1.4

0

273

a No gage-height record; discharge computed on basis of fragmentary gage-height record, interpolation, and records for station at Monserate Narrows.

f Computed on basis of partly estimated gage-height record.
32 SAN L0IS KEY RIVER BASIN

San I,ul,s Rey River At Monserate Narrows, near Pala, Calif.

Location.- Water-stage recorder, latj 33°SO'1S", long. lU'OS'lO", in NE& sec. 6, T. 10

 S;, 'H,' 2 W., 4 miles southwest of Pala and 6 miles northeast of Bonsall. Altitude of 

gage, about 270 feet (from topographic map).

Drainage area.- 383 square miles.

Records available.- December 1935 to November 1941 (fragmentary), October 1946 to Septemppji-jg^g; "

Extremes, - Maximum discharge during year, 89 seoond-feet Mar. 21 (gage height, 2.00 feet);

 SI6 flow Oct. 1-30, Aug. 16 to S«(pt. 30,

1935-41, 1946-49: Maximum gage height, 8,7 feet Feb..7, 1937, datum then In use 

(discharge r.jt determined); no flow at times during 1948 and 1949.

Remarks,- Records good. Regulation at I^ake Henshaw; several diversions above station.

Discharge, in second-feel;, water year October 1948 to September 1949

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

2425

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

o

0

0 

0 

0 

0 

0

0

0 

Q 

0 

0

Nov.

0.7 

.8 

1.2 

1,5 

1.4

1,4

1,4 

1.6 

1.5 

1.3

1.3 

1.3 

1.3 

1.4 

1.6

1.7 

1.4 

1.5 

1.5

1.6

1.6 

1.5

1.2 

1.3 

1.5

1.9 

1.7 

1.9 

1.3 

1.8

Dec.

1.8 

1.8 

1.9 

2,0 

 2.0

2.0 

2.2 

2.2 

2.2 

2.2

2.3 

2.3 

2.3 

2.3 

Z.4

2.4 

2.8 

2,8 

2.8 

2.7

2.7 

3.1 

3.7 

3.5 

3.5

3.5 

4.0 

3.7 

3.7 

3.5 

3,5

Jan.

3.7 

3.5 

3.5 

3.5 

3.5

3.5 

3.7 

3.8 

4.0 

4.0

4.4 

4.8 

5.4 

6.3 

6.6

6.6 

6.6 

6.3 

6.3 

6,6

8.9

8.9 

8.3 

8.6 

8.0

7.8 

7,3 

7.0 

6.6 

6,6 

6.8

Feb.

6.8 

7,0 

7,3 

7.3 

7.3

7.3 

9.S 

12 

11 

9.8

9,2 

9.2 

8.3 

7.8 

7.8

7.8 

7.6 

7.6

7,6 

7.6

7.3 

7,3 

7.3 

7.3 

7,3

7.6 

8,9 

10

Month

Oeto 

Hove

Dece

Ca

Janu 

pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Her. ....................................

lendar year 1948

uary ,, t .... ....... ... ........... .....

St......................................

ember. .,.,.,..,.....,..*..,..,...,...,... 

ter year 1948-49 ...,..,,..,,.....,...,.

Mar,

11 

10 

10 

10 

10

11 

11 11 

11 11

11

14

15 

14 

14

15 

15 

15 

16 ' 19

21 

20 

19 

17 

18

16 

16 

17 

17 

15 

15

Apr.

15 

15 

15 

14 

14

14 

14 

14 

14 

13

13 

12 

11 

8.9 

8.9

8.9 

8.S 

8.0 

7.8 

7,3

6,3 

5.8 

5.2 

4.8

4.6

4.0 

3.7 

3.3 

3.0 

£.8

Second' 

foot -days

0.2 

43.6 

83.8

893,7

181.4 

288.8 

445 

279,9 

91.1 

56.5 

20.3 

4.5 

0

1,435.1

May

2.7 

2.6 

2.6 

2.4 

2.6

2.6 

2.6 

2.7 

2.7 

2.8

3.0 

3.1 

3.0 

3.1

3.1

3.1 

3.0 

3.1 

3.1 

3,0

3,1 

3.1 

3.1 

3.0 

3.1

3.1 

3,1 

3.3 

3.1 

3.1 

3.1

Maximum

0.2 

1.9 

4.0

9.9

8.9 

12 

21 

15 

3.3 

3.1 

1.0 

.4 

0

21

June

3.0 

3.0 

3.0 

3.0 

3.1

3.0 

2.8 

2.3 

1.9 

1.9

2.0 

2.4 

2.0 

2.0 

2.9

1.8 

1.6 

1.4 

1.4 

1.4

1.4 

1,3 

1.2 

1.2 

1.3

1.4 

1.2 

.9 

.8 

.8

July

0.8 

.8 

.8 

.8

.7

.7 

.8 

.8 

.8 

 9

.9 

1.0 

.8 

.8 

.7

.6 

.6 

.6 

.6 

.6

.6 

.6

.6 

,5

,5

.& 

.4 

.4 

.4

.4 

,3

Minimum

0 

.7 

1.8

0

3.5

6.8 

10 

2.8 

2.4 

.8 

.3 

0 

0

0

Aug.

0.3 

.3 

.4 

.4

,4

,4 

.4 

.3

.3

.3

.4 

.2 

.2

.1 

,1

0

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0.01 

1.45

2.70

2.44

5.85 

8.17 

14.4 

9.33 

2.94 

1.88 

.65 

.15 

0

3.93

Sept.

Runoff in 

acre-feet

0.4

86

166

1,770

360 

454 

883 

555 

181 

112 

40 

8.9 

0

2,850
SAN LUIS REY RIVER BASIN 33 

San Luis Key River near Bonsall, Calif.

Location,- Water-stage recorder, lat. 33"15'05", long. 117"14i55", in NEi sec, 1, T. 11 

"sv,H, 4 W., 0.8 mile downstream from bridge on Pall Erook-Escondido road and 3 mileg 

southwest of Bonsall. Datum of gage is 108.10 feet above mean sea level, datum of 

1929.

Drainage area.- 514 square miles.

Records available.- October 1929 to September 1949. July 1916 to September 1918 (gage 

heights ana discharge measurements only) at site 0.8 mile upstream.

Average discharge.- 20 years (1939-49, 34.2 second-feet.

Extremes.- Maximum discharge during year, 34 second-feet Jan. 13 (gage height, 4.38 feet); 

no now during most of year.

1929-49: Maximum discharge, 18,100 second-feet Mar. 3, 1938 (gage height, 12.60 

feet datum then in use), from rating curve extended above 2,400 second-feet; no flow 

part of each year.

Remarks.- Records fair. Regulation at Lake Henshaw; several diversions abqve station.

Revisions (water year).- W 881; 1938.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

 12 

13 

U 

IS

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. pec. Jan.

O

0 

0 

0 

0

0 

0 

0 

0 

0

.1

l.Q 

4,4 

.3 

0

0 

O

0 

0o 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

5 

6 

6 

6 

6

6

6 

6 

6 

7

e

8 

8 

8 

8

7 

1 1 

1 0 

Month

Oeto

Hove

Dece

Ca

janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu

Sept

Wa

lender year 1946

h, ......................................

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

ter year 1948-49 .......................

Mar.

1.0 

1.0 

.9 

1.0 

1.0

.8 

.8 

.7

.7 

.6

.6

.5 

,6 

.8 

.7

.6 

.7 

.7 

.7 

.8

.8 

.8 

.9 

1.0 

.8

.7 

.6 

.7 

.6 

.6 

.5

Apr.

0,5 

.5 

 5

.5 

.4

.3 

.2 

,2 

.2 

.2

.1 

.1 

.1 

.1 

0

0 

0 

0

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

£££.

Q 

0 

0

95,8

5.8 

12.8 

23.2 

4.0 

0 

0 

0 

0 

0

45.8

MS

May

*»

0 

0 

0

16

4.4 

1.1 

1.0 

.5 

0 

0 

0 

0 

0

4.4

June

Minimum

July

0 

0 

0

0

0 

0 

.5 

0 

0 

0 

0 

0 

0

0

Aug.

*,n

0 

0 

0

.26

.19 

.46 

.75 

.13 

0 

0 

0 

0 

0

.13

Sept.

Runoff In 

acre-feet

0 

0 

0

190

' IZ 

25 

46 

7.9 

0 

0 

0 

0 

0

91

Peak dljsehar^e (base, 100 sec.-ft.).- No peak above base.

San Luis Rey River at Qeeanside, Calif.

Location.- Water-stage recorder, lat. 33 8 12'40", long. 117°22'40", in NWir sec. 23,

 1. IX. S., R. 5 W., 0.5 mile upstream from State highway bridge, 0.7 mile above 

mouth, and 1 mile north of Oceanside. Altitude of gage, about 20 feet.

Drainage area.- 65? square miles,

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

1942, and October 1946 to September 1949.

Average d1a charge - 17 years (1912-14, 1929-41, 1946-49). 31.0 second-feet.

Eff&rernesy- w flow during year.

 T9T2-14. 1916, 1989-42., 1946-49: Maximum discharge, 95,600 second-feet Jan. 12,

1916; no flow for several months of each year. 

Remarks.- No flow since reestablishment of station In-October 1946. Storage at Lake

Hensnaw; several diversions above station.
34 SANTA MARGARiCTA 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 1949.

Average discharge.- 26 years, 14.0 second-feet.

Extremes.- Maximum discharge during year, 3.8 second-feet Aug. 27, 28; no flow during 

most of year.

1923-49: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 

fee.t), by slope-area method; no flow during most of 1949.

Remarks.- Records good. No diversion above station. Plow regulated by Vail Lake beginning in November 1948 (capacity, 50,000 acre-feet).

Cooperation.- Gage-height record and 30 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year Oetoberl948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.8 

1.8 

1.8 

1.7 

1.8

1.8 

1.8 

1.6 

1.6 

1.8

1.8 

1.8 

1.8 

1.9

1.9

2.0 

2.1 

2.8 

2.3 

2.2

2.1 

1.9 

1.9 

2.0 

1.9

2.0 

2.1 

2.2! 

2.3 

2.3 

2.3

Nov.

2.3 

2.2 

2.1 

2.1 

2.0

2.0 

2.0 

1.3 

1.9 

2.0

2.0 

2.0 

1.2 

.2

.1

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

Dec. Jan. Feb.

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar. Apr.

Secondfoot-days

61.1 

25.4 

0

1,018.9

0 

0 

O 

O 

0 

0 

O 

22.0 

46.5

155.0

May

Maximum

2.8 

2.3

0

36

0 

0 

O 

0 

0 

0 

O 

3.8 

3.5

3.8

June

Minimum

July

1.6 

0 

0

0

O 

0 

0 

O 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0

0 

0 

0

0

0 

0 

0

0 

0

0 

0 

O 

0 

0

O 

O 

0 

O 

1.5

3.3 

3.8 

3.8 

3.2 

3.2 

3.2

Mean

1.97 

.85

0

2.78

0 

0 

0 

0 

0 

0 

0 

.71 

1.55

.42

Sept.

3.5 

3.5 

3.3 

3.3 

3.5

3.5 

3.5 

3.3 

3.3 

3.3

3.5 

3.5 

3.5 

2.0

0

0 

0 

0 

0

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

Runoff in 

acre-feet

121 

50 

O

2,020

O 

0 

0 

0 

0 

0 

0 

44 

92

307

Peak discharge ([base. 60 sec.-ft.).- Mo peak above base.
SANTA MARGARITA RIVER BASIN 35

Temecula Creek at Railroad Canyon, near Temecula, Calif.

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

upper end of Temecula or Railroad Canyon, 0.1 mile downstream from Murrieta Creek and 

1.5 miles south of Temecula, Riverside County. Altitude of gage, about 950 feet.

Drainage area.- 592 square miles.

Records available.- January 1923 to September 1949.

Average discharge.- 26 years, 27.4 second-feet.

Extremes.- Maximum discharge during year, 39 second-feet Jan. 13 '(gage height, 2.01 feet); 

minimum daily, 3.6 second-feet Sept. 8.

1923-49: Maximum discharge, 25,000 second-feet Feb. 16, 1927 (gage height, 14.6 

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

Remarks.- Records good. Pumping diversions affect flow during irrigation season. Plow 

regulated by Vail Lake beginning in November 1948 (capacity, 50,000 acre-feet).

Cooperation.- Gage-height record and 292 discharge measurements furnished by Santa 

wargarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.0 

4.3 

4.3 

5.0 

5.3

5.3 

5.3

4.7 

5.0 

6.4

5.6

4.4 

4.0 

6.0 

5.6

5.8 

6.0 

7.3 

6.4 

5.2

7.3 

6.4 

6.2 

6.0 

5.6

6.0 

5.8 

6.0 

6.4 

6.4 

6.6

Nov.

6.6 

6.6 

6.2 

6.6 

6.8

6.8 

6.6 

6.4 

6.0 

6.2

6.4 

6.4 

6.6 

6.6 

6.4

6.2 

6.2 

5.8 

6.4 

6.4

6.4 

5.6 

5.6 

6.8 

7.3

7.0 

6'. 8 

7.0 

7.3 

6.0

Dec.

7.6 

6.8 

7.3 

8.2 

7.6

7.0 

8.2 

8.5 

7.3 

7.3

7.9 

7.3 

6.8 

7.9 

7.9

7.9 

9.7 

9.4 

 8.2 

7.9

7.9 

8.2 

10 

8.5 

7.3

7.6 

15 

11 

11 

9.7 

10

Jan.

9.7 

9.7 

8.5 

8.8 

8.8

9.1 

9.7 

9.1 

9.7 

11

12 

16 

29 

21 

16

13 

12 

12 

12 

16

14 

14 

18 

16 

14

12 

12 

11 

11 

12 

11

Feb.

12 

11 

12

14 

12

11 

14 

14 

11 

12

12 

13 

12 

11 

11

12 

11 

9.4 

11

10

9.4 

9.1

9.7 

11 

10

11 

11 

11

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

11 

10 

10 

10 

9.1

9.4 

11 

11 

8.2 

7.9

9.7 

8.8 

9.4 

9.4 

8.8

8.5 

9.7 

9.4 

9.4 

8.8

8.5 

9.1 

9.4 

10 

10

10 

8.5 

7.9 

8.8 

9.1 

7.6

Apr.

9.4 

9.1 

9.1

8.5 

7.6

8.2 

8.2 

8.5 

8.2 

7.9

8.2 

8.0 

8.0 

7.5 

8.0

7.5 

8.0 

8.0 

8.5 

7.5

8.0 

7.5 

7.5 

8.0 

8.0

7.0 

7.0 

6.6 

7.0 

7.5

Secondfoot-days

175.6 

194.0 

262.9

2,783.1

398.1 

317.6 

288.4 

238.0 

207.6 

167.8 

145.4 

142.8 

137.8

2,676.0

May

7.5 

7.5 

8.0 

6.6 

6.2

5.8 

5.8 

7.5 

7.0 

6.2

6.6 

7.5 

8.0 

7.0 

8.5

7.5 

7.5 

7.0 

7.0 

6.2

5.8 

6.2 

8.5 

5.4 

5.4

5.8 

5.0 

5.8 

6.4 

6.4 

6.0

Maximum

7.3 

7.3

15

39

29 

14 

11 

9.4 

8.5 

6.2 

5.6 

5.0 

5.2

29

June

5.4 

6.0

6.0 

5.6 

6.0

5.8 

6.0 

5.4 

5.6 

5.4

5.6 

5.4 

5.6 

5.8 

5.2

6.2 

6.0 

5.6 

5.8 

5.4

5.2 

4.8 

5.4

5.4

5.4 

5.4 

6.0 

5.6

5.4

July

5.6 

5.2 

5.2 

5.2 

5.0

5.0 

4.8 

5.0 

.6 

.8

.2 

.6 

.8 

.6 

.4

.8 

.6 

.6 

.4 

.4

.4 

.4 

.2 

.4

.4 

.6 

.6 

.6 

.2 

.4

Minimum

4.0 

5.6 

6.8

3.4

8.5 

9.1 

7.6 

6.6 

5.0 

4.8 

4.2 

4.0 

3.6

3.6

Aug.

4.6 

4.8 

4.4 

4.0 

4.4

5.0 

4.8 

4.8 

4.4 

4.6

4.2 

4.6 

4,6 

4.6 

4.8

4.8 

4.6 

4.8 

4.6 

4.6

4.6 

4.8 

4.6 

4.8

4.4 

4.4

4.4 

5.0 

4.6 

4.8

Mean

5.66 

6.47 

8.48

7.60

12.8 

11.3 

9.30 

7.93 

6.70 

5.59 

4.69 

4.61 

4.59

7.33

Sept.

5.0 

4.8 

4.4 

4.2 

4.6

4.8 

4.2 

3.6 

4.2

4.4

4,4 

4.2 

4.6 

4.6 

4.4

5.0 

5.E 

5.5 

4.8 

5.0

4.6 

4.4 

4.4 

4.6

4.8 

5.0 

4.6 

4.6 

4.6

Runoff in 

acre-feet

348 

385 

521

5,520

790. 

630 

572 

472 

412 

333 

288 

283 

273

5,310

Peak discharge fba.se,. 70 sec.-ft.).- No peak above base.
36 SANTA MARGARITA RIVER BASIN

Santa Margarita River near Pall Brook, Calif.

Location.- Water-Stage recorder, lat. 338 24'35", long. liy^'SO", in NE£ sec. 13 T. 9 S., 

K.' 4 w., 2 miles north of Pall Brook. Altitude of gage, about 290 feet. Auxiliary 

water-Stage recorder on opposite tank about 2,000 feet downstream.

Drainage^area.- 645 square miles.

Records available.- November 1924 to September 1949.

Average discharge.- 24 years (1925-49), 35.5 second-feet.

Extremes.* Maximum discharge during year, 53 second-feet Jan. 14 (gage height, 0.86 foot); 

hiinimum dally, 2.3 second-feet Sept. 9.

1924-49: Maximum discharge, 33,100 second-feet Feb. 16, 1927 (gage height, 15.6 

feet) by slope-area method; minimum, 0*1 second-foot Aug. 30, 1925, Sept. 4, 1926, 

Sept. 6, 1928, and at times during July and August 1929.

Remarks.- Records good. Plow partly regulated by Vail Lake on Temecula Creek. Several 

diversions for irrigation above station.

Cooperation.- Gage-height record and 292 discharge measurements furnished by Santa 

""Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in seoona-faet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Octo 

Hove

Dece

Ca

Janu 

Febf 

Mart 

Aprl

June 

July 

Augu 

Sept

Wa

Oct.

4.4

4.6 

4.1 

4.4 

4.4

4.6 

4.2 

3.8 

3.5 

4.2

4.9 

4.9

5.1 

5.1 

5.3

5.5 

5.9 

6.7 

7.0 

6.5

6.3 

5.9 

5.5 

5.3

5.5

5.7

5.9 

5.9 

6.1 

6.5 

6.7

Nov.

6.5 

6.3 

6.5 

6.7 

6.3

6.3 

6.5 

6.3 

5.9 

5.9

6.3 

6.7 

6,5 

6.5 

6.5

6.7 

6.7 

6.7 

6.5 

6.3

6.3 

7.0 

6.7 

6.7 

7.0

7.3 

7.3

7.0 

6.7

7.0

Dec.

7.3

7.3 

7.5 

8.7 

8.1

7.8 

8.1 

8.4 

8.4

8.1

8.4 

8.4 

8.4

8.1 

8.1

8.4 

12 

11 

9.3 

9.0

9.0 

9.3

11 

11 

10

10 

18 

18 

15 

12 

12

Jan.

11 

11

11 

11

10

10 

10 

9.6 

10 

12

IS 

19 

30 

41 

25

20 

18

15 

IS 

20

20 

18 

19 

18 

18

16 

16 

IS 

14 

14 

14

Month

Feb.

14 

13 

15 

15 

16

15 

20 

20 

16 

15

14 

16 

16 

16 

14

13 

13 

13 

13 

13

13 

13

13 

13 

13

13 

14 

14

nber ..... . . ......

lendar year 194!

ter year 1948-49 .......................

Mar.

14

13 

12 

12 

13

13 

13 

13 

12 

12

13 

12 

12 

11 

11

11 

11

11 

11 

11

11 

11 

13

14 

14

13 

13 

12 

11 

11 

1\

Apr.

1111 

11 11 

11

10 

10 

9.9 

9.9 

9.3

9.0 

9.3 

9.3 

9.6 

9.6

9.3 

9.3 

9.6 

9.9 

9.6

9.0 

8.7 

8.4 

8.4 

8.4

6.4 

8.4 

7.8

7.5 

7.5

Secondfoot -day B

164.4 

198.0 

305.8

3,072.7

505.6 

406 

375 

291.1 

224.3 

155.5 

128.4 

113.6 

116.0

2,967.7

May

7.8 

8.1 

7.8 

7.5 

7.0

6.5 

6.1 

6.5 

6.7 

6.7

7.0 

7.8 

7.5 

8.4 

8.7

8.7 

9.0 

9.6 

9.6 

8.4

7.5 

7.0 

6.3 

S.7 

5.9 i-3

6.0 

6.5 

6.1 

5.9

Maximum

7.0 

7.3 

18

57

41 

20 

14 

11 

9 6 

6 1 

4 9 

4 6 

4 6

41

June

6.1 

5.9 

5.7 

5.3 

5.3

5.1 

4.9 

5.1 

5.1 

5.3

5;5

5.5 

5.5 

5.3 

5.1

5.3 

5.3

5,1 

5.1 

5.1

4.7 ' 

4.4 

4.2 

4.4 

4.7

5.1

5.3 

5.5

S.S 

5.1

July

Minimum

3.5 

S.9 

7.3

2.2

9.4 

13 

11 

7.5 

5.7 

4.2 

3.5 

2.7 

2.3

2.3

4.9 

4.6 

4.6 

4.6 

4.6

4.6 

4.6 

4.4 

4.6 

4,4

4.4

4.1 

4.1 

4.1 

4.1

4.0 

4.0 

4.1 

4.1 

4.2

3.8 

4.0 

4.0 

3.8 

3*7

3.8 

3.7 

3.8 

3.7 

3.5 

3.5

Aug.

3.5 

3.7 

3.7 

3.5 

3.4

3.5 

3.7 

4.0 

4.1 

4.2

4.2 

4.0 

4.0 

4.2 

4.6

4.4 

4.2 

4.4 

4.1 

3.8

3.8 

3.4 

2.7 

2.7 

3.0

3.1 

2.8 

3.0 

3i3 

3.4 

3.2

Mean

5.30

6.60 

9.86

8.40

16.3 

14.5 

12.1 

9.37 

7.24 

5.18 

4.14 

3.66 

3.67

8.13

Sept.

3.1 

3.2 

3.8 

4.0 

4.1

3.4 

3.1 

2.5 

2,3 

2.7

2.9 

3.4 

3.8 

4.6 

4.2

4.2 

4,2 

4.4 

4.1 

4.2

4.6 

4.2 

3.8 

3.0 

3.0

3.7 

3.5 

4.0 

4.0 

4.0

Runoff in 

acre-feet

326 

393 

607

6,100

1,000 

805 

744 

558 

445 

. 308 

255 

225 

218

5,880

Peak .discharge (base, 210 sgo. -f.t.), - No peak above baae.
SANTA MARGARITA RIVER BASIN 37

Santa Margarita River at Ysidora, Calif.

Location - Water-stage recorder, lat. 33°14'40", long, 11?°22'50", in Santa Margarita Y 

Las Flares Grant, 1 mile downstream from Ysidora, San Diego County, and about 2 miles 

upstream from mouth. Altitude of gage, about 15 feet,

Drainage area.- 740 square miles.

Records available.- February 1923 to September 1929, October 1930 tp September 1949.

Average discharge.- 21 years (1927-29, 1930-49), 42.5 second-feet.

Extremes.- Maximum discharge during year, 34 second-feet Feb. 25 (gage height, 6.38 feet); 

no now during most of year.

1923-29, 1930-49: Maximum discharge 33,600 second-feet Feb, 16, 1927, by slopearea method; no flow during part of most years.

Remarks.- Records good. Diversions above station for irrigation on Santa Margarita 

nan eft and Pauba Ranch'. (See p. 39 for records of O'Neill ditch near Ysidora.) Flow 

partly regulated by Vail Lake on Temecu]a Creek.

Cooperation.r Gage-height record and 19 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in seeonfj-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

1 

8 

9 

10

11 

12 

13 

14 

15

16 

It 

18 

19 

20

21 

22 

23 

24 

2S

26 

27 

28 

29 

SO 

31

Oet, Hov. Dec. Jan. Feb.

0

0 

0 

O 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2.0 

18

2S 

21 

17

Month

Octo 

Hove 

Deee

Ca

Janu 

Pebr 

Marc 

Apr! 

May

June 

July 

Augu

Sept 

wa

lendar year 1948

uaj«*y f

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

ter year 1948-49 .......................

Peak discharge (base, 50 sec. -ft. . - No oe

Mar.

16 

15 

1* 

14 

15

14 

14 

11 

.3 

2.4

2.4

5.9 

.9 

4. S 

6.4

6.4

6.7 

5.4 

.9

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

0

283.4

0 

S6.0 

155.5 

0 

0 

0 

0 

0 

0

241.5

May

Maximum

0 

0 

0

26

0 

28 

16 

0 

0 

0 

0 

0 

0

28

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.77

0 

3.07 

5.02 

0 

0 

0 

0 

0 

0

.66

Sept.

Runpff In 

acre-feet

0 

0 

0

562

0

171 

308 

0 

0 

0 

0 

O 

0

479

ak above base.

947909 0-51-4
38 SANTA MARGAHITA RIVER BASIN

Murrieta Creek at Temecula, Calif.

Location.- Water-stage recorder, lat. 33°29'00", long. 117°08'50", in Temecula Irant, 0.6 

mile upstream from Temecula Creek and 0.5 mile south of Temecula, Riverside County. 

Altitude of gage, about 1,050 feet.

Drainage area.- 220 square miles.

Records available.- October 1930 to September 1949.

Average discharge.- 19 years, 12.3 second-feet.

Extremes.- Maximum discharge during year, 12 second-feet Dec. 27 (gage height, 0.88 foot); 

minimum daily, 0.2 second-foot Aug. 26, Sept. 6-11.

1930-49: Maximum discharge, 17,500 second-feet Jan. 23, 1943 (gage height, 13.82 

feet); minimum daily, that of Aug. 26, Sept. 6-11, 1949.

Remarks.- Records good. No appreciable diversion above station.

Cooperation.- Gage-height record and 291 discharge measurements furnished by Santa 

wargarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7

6 

9 

10

11 

12 

13 

14 

\5

16 

17 

18 

19

£0

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

o..

'.6 

.6 

.6

Nov.

0.6 

.6 

.6 

.6 

.8

.7 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.7

.8 

.8

.8 

.8 

.8 

.7 

.9

Dec.

0.8 

.8 

.8 

.9 

.8

.9 

1.3 

1.3 

1.1 

1.0

.9 

.8 

.9 

.9 

1.2

1.1 

1.8 

1.5 

1.1 

1.0

1.0

1.2 

1.9 

1.5 

1.3

1.3 

3.7 

3.4 

2.4 

2.1 

1.6

Jan.

1.4 

1.3 

1.3 

1.1 

1.2

1.2 

1,2 

1.2 

1.3 

1.9

2.6 

3.6 

9.0 

8.5 

3.9

2.7 

2.2 

1.9 

2.1 

3.6

3.6 

2.7 

4.1 

2.9 

2.4

2.3 

2.1 

2.0 

1.8 

1.7 

1.7

Feb.

1.8 

1.7 

2.1 

2.6 

2.9

2.2 

2.8 

3.8 

2.3 

2.2

2.1 

2.8 

2.2 

2.2 

2.0

1.7 

1.9

1.7 

1.8 

1.8

1.7 

1.7 

1.7 

1.8 

1.9

1.8 

2.0 

2.2

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber................. ....................

lendar year 1943

ter year 1948-49 .......................

Mar.

2.3

1.3 

1.6 

1.5 

1.8

1.9 

2.0 

2.1 

1.6 

1.5

1.7 

1.7 

1.5 

1.5 

1.3

1.3 

1.4

1.5 

1.5 

1.5

1.4 

1.2 

1.3 

1.6 

1.9

1.4 

1.2 

1.2 

1.2 

1.2 

1.2

Apr.

1.3 

1.2 

.1 

.0 

.9

.0

.0 

.0 

.9 

.8

.8 

.7 

.7 

.7 

.7

.7 

.7 

-.7 

.7 

.8

.7 

.6 

.6 

.6 

.6

.7 

.8

.8 

.7 

.6

Secondfoot-days

14.7 

19.8 

42.4

324.8

80.5 

59.4 

47.8 

24.1 

21.8 

13.8 

10.5 

9.5 

9.3

353.6

May

0.6 

.6 

.7 

.6 

.6

.5 

.7 

.8 

.8 

.8

.8 

.7 

.9 

.7 

.8

.8 

.8 

.9 

.9 

.9

.7 

.6 

.6 

.6 

.5

.5 

.5

.9 

.8 

.6 

.6

Maximum

0.6 

.9 

3.7

18

9.0 

3.8 

2.3 

1.3 

.9 

.6 

.4 

.4 

.4

9.0

June

0.6 

.5 

.5 

. 5 

.4

.4 

.5 

.4 .'4 

.4

.4 

.5 

.6 

.5 

.5

.4 

.5 

.5 

'.5 .5 

.5 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.5 

.4

July

0.4 

.4 

.4 

.4 

.4

'.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

. 4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3 

.3

Minimum

0.4 

.6 

.8

.3

1.1 

1.7 

1.2 

.6 

.5 

.4 

.3 

.2 

.2

.2

Aug.

0.3 

.3 

.4 

.4 

.4

.3 

. 3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.2 

.3 

. 3 

.3 

.3 

.3

Mean

0.47 

.66

1.37

.89

2.60 2.12' 

1.54 

.80 

.70 

.46 

.34 

.31 

.31

.97

Sept.

0.3 

.3 

.3 

.3 

.3

.2 

. 2 

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3

.4 

.4 

.3 

.3 

.3

.4 

.4 

.4 

.3 

.4

.4 

.4 

.3 

.3 

.4

Runoff In 

acre-feet

29 

39 

84

645

16O 

118 

95 

48 

43 

27 

21 

19 

18

701

Peak discharge (base, 55 sec.-ft.).- No peak above base.
SANTA MARGARITA RIVER BASIN 39

O'Neill ditch near Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°19'40", long. 117°19i45", 100 feet upstream 

rrom point of discharge into O'Neill Reservoir, and 6 miles northeast of Ysidora, 

San Diego County.

Records available.- October 1930 to September 1949.

Average discharge.- 19 years, 3.56 second*-feet .

Extremes.- Maximum daily discharge during year, 18 second-feet Feb. 8; no flow during

1930-49: 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 6 miles above station on Santa Margarita River at Ysidora.

Cooperation.- Gage-height record and 260 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

2S

26 

27 

28 

29 

30 

31

Oct.

0.3 

.8 

.7 

.4 

.6

1.0 

.6 

.6 

.8 

.9

.8 

1.1 

1.2 

1.7 

1.5

2.3 

3.3 

5.5 

6.4 

6.3

5.2 

4.6 

4.0 

3.6 

3.2

3.5 

3.5 

4.1 

4.2 

4.8 

5.3

Nov.

4.8 

4.3 

4.6 

4.4 

3.5

3.8 

3.6 

3.1 

3.7 

3.0

3.6 

3.6 

4.3 

4.4 

3.9

4.5

4.6 

5.4 

4.2 

4.8

4.9 

4.4 

4.5 

5.1 

5.6

6.1 

5.8 

5.7 

5.3 

5.6

Dec.

5.2 

5.4 

5.6

7.3 

8.0

8.0 

7.7 

7.7 

8.0 

7.9

7.7 

8.0 

8.3 

8.6 

8.3

8.4 

12 

14 

12 

11

10 

11 

13 

13 

13

12 

14 

16 

16 

14 

14

Jan.

13 

12 

12

11

10

10 

10 

10

11

12.

14 

16 

17 

17 

17

17

17 

15 

14 

16

16 

17 

17 

16 

16

15 

14 

14 

14 

14 

14

Feb.

14 

14 

14 

15 

15

15 

15 

18 

17 

16

15 

16 

15 

15 

15

14 

14 

14

14 

14

14 

13 

13 

13

14

13 

14 

14

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 .......................

Mar.

14 

14 

13 

13 

14

14 

13 

13 

13 

13

13 

13 

12 

12 

12

12 

12 

12 

12 

12

11 

11 

12 

13 

14

14 

13 

12 

11 

10 

10

Apr.

11 

10 

10 

10 

9.2

8.6 

9 

8.9 

9 

8.9

7.8 

7.8

Secondfoot-days

82.8 

135.1 

315.1

2,283.5

438 

407 

387 

228.9 

142.7 

32.2 

13.8 

3.6 

.1

2,186.3

7.7 

7.5

7.9 

7.8 

7.4 

7.5 

7.2

6.4 

5.5 

6.4 

6.5 

5.9

5.8 

5.9 

5.3 

S.2 

5.2

Hay

5.2 

5.0 

4.6 

4.3 

4.0

3.4 

3.5 

3.2 

3.0 

3.2

2.9 

3.2

6.5 

6.9

6.9 

8.2 

8.8 

9.0 

8.0

7.0 

5.5 

3.5 

3.0 

2.7

2.9 

2.6 

3.0 

3.1 

3.3 

2.3

Maximum

6.4 

6.1 

16

24

17 

18 

14 

11 

9.0 

2.1 

1.2 

.4 

.1

18

June

2.1

2.1 

1.4 

2.0 

1.4

.4 

.6 

.6 

.7 

.9

1.6 

1.8

1.3 

.6

1.0 

1.0 

1.7 

1.4 

.6

.4 

.2 

.2 

.2 

.8

1.2 

1.3 

1.3 

1.1 

.9

July

0.7 

1.2 

1.1 

1.0 

.8

.8 

.8 

.6 

.8 ' .8

.6 

.4

.1 

.1

.2 

.2 

.2

.1 

0

0 

.2 

.2 

.2 

.3

.3 

.4 

.3 

.2

.4 

.4

Minimum

0.3 

3.0 

5.2

0

10 

13 

10 

5.2 

2.3 

.2 

0 

0 

0

0

Aug.

0.4 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.4

.2

0 

0

.1 

.1

.1 .1 .1 

.1

.2

.1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

2.67 

4.50 

10.2

6.24

14.1 

14.5 

12.5 

7.63 

4.60 

1.07 

.45 

.12 

.003

5.99

Sept.

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

o .1

0 

0 

0

0 

0 

0 

0 

0

Runoff in 

acre-feet

164 

26S 

625

4,530

869 

807 

768 

454 

283 

64 

27 

7.1 

.2

4,340
40 SAN JUAN CREEK BASIN

San Juan Creek near San Juan Caplstrano, Calif.

Location.- Water-stage recorder, lat. 33°30 t 50", long. 117°37'40", in Mission Vie jo Grant, 

at Ortega State Highway bridge, 2.5 miles east of San Juan Capistrano, Orange County. 

Altitude of gage, about 150 feet,

Drainage area . - HO square miles.

Records available.- October 1928 to September 1949.

Average discharge .- 21 years, 15.1 second-feet.

Extremes . - Maximum discharge during year, 3.6 second- feet Feb. 27 (gage height, 1.78 feet); 

no "i low July 13 to Sept. 30.

1929-49: 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.

Remartcs>- Records fair. San Juan Mutual Water Co. diverted about 250 acre-feet from 

polni; 300 feet above station during the 1949 water year.

Cooperation.- Forty-six discharge measurements furnished by Orange County Flood Control 

District, throught J. A. Bradley, flood control engineer, and eight discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

2E 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4

.3 

.3 

.3 

.2 

.3

Nov.

0.3 

.2

.3 

.3 

.2

.2 

.2 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2

!2 

.2

.2

.2 

.3 

.2 

.2 

a. 2

.2 

.4 

.6 

.4 

.3

.4

.7 

.7 

.7 

.7 

.7

Jan.

0.7 

.6 

.5 

.5

.4

.4 

.4 

.4

.5 

.7

1.2 

1.1 

1.8 

2.9 

2.6

2.3 

2.1 

2.0 

1.9 

2.9

2.6 

2.4 

2.4 

2.3 

2.0

2.0

1.9 

1.8 

1.8 

1.8 

1.7

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Feb.

1.7 

1.6 

1.8 

1.8 

1.8

1.8 

1.9 

2.3 

2.1 

2.1

2.1 

2.1 

1.9 

1.8 

1.8

1.8 

1.8 

1.9 

2.0 

2.0

1.9 

1.8 

1.8 

1.9 

2.0

2.0 

2.9 

2.1

lendar year 1948

ter year 1948-49 .......................

Mar.

1.9 

1.7 

1.7 

1.8 

2.4

2.0 

1.9 

1.9 

1.8 

1.9

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.7 

1.6 

,3 

.4

.3 

.3 

.6 

.4

.3

.3 

.3

.3 

.3

.3

Apr.

0.4

.4 

.4 

.4

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

,1 

.1 

.1

.1

Secondfoot-days

9.3 

S.O 

9.6

193.9

48.6 

54.5 

38.2

6.5 

4.6

3.1

1.2 

0 

0

180.6

May

0.1 

.2

.2 

.2 

.1

.1 

.2 

.2

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2

!2

.2 

.2 

.2 

.2

.2

.1 

.1

.1 

.1 

.1

Maximum

0.4 

.3 

.7

5.0

2.9 

2.9 

2.4 

.4 

.2 

.2 

.1 

0 

0

2.9

June

0.1 

.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

July

oooooo oooo

Minimum

0.2 

.1

.1

.1

.4

1.6 

.3 

.1 

.1 

.1 

0 

0 

0

9......

Au*.

Mean

0.30 

.17 

.31

.53

1.57 

1.95 

1.23 

.22 

.15 

.10 

.04 

0 

0

.49

Sept.

Rundff in 

acre-feet

18 

9.9

19

382

96 

108 

76 

13 

9.1 

6.1 

2.4 

0 

O

.. 358 .

Peak, discharge (base, iiO sec.-ft.).- No peak above base. 

a No gage-height record; discharge Interpolated.
SAN JUAN CREEK BASIN 41

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., R. 8 W., on State highway bridge, 1.5 miles north of San Juan Capistrano.

Drainage area.- 36.5 square miles.

Records available.- October 1930 to September 1949.

Average discharge.- 13 years, 6.36 second-feet.

Extremes.- Maximum discharge during year, 3.6 second-feet Jan. 13 (gage height, 1.79 

reet); no flow during most of year.

1930-49: 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 se'eond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 5'

6 

7 8' 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0

0

0

0 

0 

0 

0

0 

0 

0 

.0? 

.07

.07 

.07 

,03 

0 

0

.02 

.04 

.1 

0 

.01

Nov.

0 

.03 

.03 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

.03

.1

0 

0 

.01

0 

.2 

0

0 

0

0 

0 

0 

0 

0 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

APri

Mau

June 

July 

Augu 

Sept

Wa

J»n.

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

.2 

.4 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Peb.

lendar year 1948

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

ter year 1948-49 .......................

Mar. Apr.

Secondfoot-dayp

0.43 

.OS 

.34

2.53

.6 

0 

0 

0 

0 

0 

0 

0 

0

1.43

May

Maximum

0.1 

.03 

.2

.3

.4 

0 

0 

0 

0 

0 

0 

0 

0

.4

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0.014 

,002 

.011

.007

.02 

0 

0 

0 

0 

0 

0 

0 

0

.004

Sept.

-

Runoff In 

acre-feet

0,9 

,1 

.7

5.1

1.2 

0 

0 

0 

0 

0 

0 

0

*

2,9
ALISO CREEK BASIN 

Aliso Creek at El Toro, Calif.

Location.- Water-stage recorder, lat. 33°37'15", long. 117°41'20", in Canada de los Alisos 

Urant, on Second Street Bridge, at El Toro, Orange County. Altitude of gage, about 

440 feet.

Drainage area.- 8.5 square miles.

Records.available.- Ootober 1930 to September 1949.

Average discharge.- 19 years, 0.89 second-foot.

Extremes.- Maximum discharge during year, 2.3 second-feet Jan. 12 (gage height, 5.95 

feet); no flow during most of year.

1930-49: 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 year).- W 961: 1941(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

.02 

0 

0

o

0 

.04 

0 

0 

0

.02

o

0 

0 

0

o

Jan.

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

.09 

.05 

0

o 

o

0 

0

o

0

0 

0 

.02 

0 

0

0 

0 

0 

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Feb.

0 

0 

0 

0

o

0 

.01

0 

0 

0

.01 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o 

0 

o

0 

0

o

0

lendar year 1948

ter year 1948-49 .......................

Mar.

I

Apr.

Secondfoot-days

0 

0 

.08

38.18

.16 

.02 

0 

0 

0 

0 

0

o 

 o

0.26

May

Maximum

0 

0 

.04

11

.09 

.01

0 

0 

0 

0 

0 

0 

0

.09

June July

Minimum

0 

0 

0

o

0

o

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0

o

.003

.104

.005 

.001 

0 

0 

0 

0 

0 

0 

0

.001

Sept.

Runoff In 

acre -feet

0 

0 

.2

76

.3 

.04 

0 

0 

0 

0 . 

0 

0 

0

.5
SANTA ANA RIVER BASIN 43

Santa Ana River near Mentone, Calif.

Location.- Water-stage recorder, lat. 34°06'40", long. 117°06'00", in SW-£ sec. 4, T. 1 S., 

 H. a "W., 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, datura of 

1929. Auxiliary water-stage recorder at Greenspot Bridge, 1 mile downstream.

Drainage area.- 202 square mile, including area tributary to Baldwin Lake at head of 

Bear Valley.

Records available.- October 1914 to September 1949. 

1.5 miles upstream above Warm Spring Canyon.

July 1896 to September 1914 at site

Average discharge.- 35 years (1914-49), 37.8 second-feet. Average combined discharge of 

Santa Ana Kiver and canal, 35 years (1914-49), 95.6 .second-feet.

Extremes (river only).- Maximum discharge during year, 108 second-feet Jan. 20 (gage 

height, ti.b'2 feet); no flow during several months.

1896-1949: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area 

method (gage height, 14.3 feet); no flow at times in some years. '

Remarks.- Records good. Storage at Bear Valley Reservoir (capacity, 72,000 acre-feet) 

and diversions above station. Sum of discharge of river at this station and of canal 

bypassing this station is given in table on following page.

Revisions (water year).- W 931: 1940.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

3.1 

12 

13

15 

15 

14 

18 

19

20 

20 

22 

22 

22

21 

21 

22 

23

60

17 

8.0 

9.2 

6.3 

4.8

3.7 

3.2 

3.0 

2.8 

2.6 

2.2

Feb.

1.8 

2.0 

2.2 

2.0 

1.8

1.8 

2.6 

3.2 

3.0 

3.0

4.5 

8.8 

4.8 

4.0 

3.5

3.0 

3.2 

3.7 

4.2 

4.5

4.0 

4.0 

4.2 

6.0 

11

9.2

15 

18

Month

OOto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

14 

10 

8.8 

8.0 

12

10 

8.8 

8.4 

6.6 

6.3

7.6 

6.3 

6.9 

.6.3 

5.4

5.4 

5.0 

5.0 

6.0 

6.9

4.8 

4.8 

6.6

5.7 

5.4

5.0 

4.8 

7.3 

7.3 

6.9 

6.9

Apr.

5.7 

5.7 

5.4 

5.0 

5.0

5.0 

4.8 

4.8 

4.8 

4.8

4.8 

4.8 

4.8 

4.8 

4.8

4.5 

4.2 

4.2 

4.2 

3.7

3.7 

4.5 

4.8 

4.8 

4.2

3.0 

2.2 

1.6 

1.3 

1.2

Seeondfoot-days

0 

0 

0

331.6

424.9 

139.0 

219.2 

127.1 

32.8 

9.8 

1.2 

0 

0

954.0

May

1.0 

.9 

.9 

.9 

.7

.7 

.8 

.8 

.9 

.9

.e

.8 

.8

1.5 

1.6

1.3 

1.2 

1.2 

2.4 

3.2

1.8 

1.3 

1.0 

.8 

.8

.7 

.7 

.7 

.6 

.6 

.5

Maximum

0 

0 

0

53

60 

18 

14 

5.7 

3.2 

.5 

.1 

0 

0

60

June

0.5 

.5 

.5 

.5 

.5

d.4 

d.4 

d.4 

.4 

.4

.4 

.4 

.4 

.3 

.3

.2

.3 

.3 

.3 

.3

.2 

.2 

.2 

.2

.2

.3 

.3 

.2 

.2

.1

July

0.1 

.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 

0 

0

Minimum

0 

0 

0

0

0 

1.8 

4.8 

1.2 

.5 

.1 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.91

13.7 

4.96 

7.07 

4.24 

1.06 

.33 

.04 

0 

0

2.61

Sept,

Runoff In 

acre-feet

0 

0 

0

657

843 

276 

435 

252 

65 

19 

2.4 

0 

O

1,890

Peak discharge (base, 150 see.-ft.).- No peak above base.

d Doubtful gage-height record; discharge computed by interpolation.
44 SANTA ANA RIVER BASIN

Combined discharge. In second-feet, of Santa Ana Rlvei1 and canal near Mentone, calif., 

water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

"" 21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

54 

55 

55 

56 

54

50 

48 

48 

49 

50

51 

46 

47 

43 

45

43 

44 

50 

31 

36

40 

38 

42 

42 

43

42 

44 

47 

49 

48 

28

Nov.

33 

36 

36 

34 

32

33 

34 

35 

35 

35

35 

39 

44 

45 

46

44 

38 

36 

36 

37

36 

38 

36 

36 

36

37 

35 

37 

36 

36

Dec.

37 

38 

38 

37 

36

35 

34 

34 

31 

28

28 

28 

33 

35 

34

35 

39 

32 

32

41

36 

41 

32 

27 

29

29 

37 

31 

30 

33 

33

Jan.

32 

33 

13 

12 

13

15 

15 

14 

18 ' ' 19

20 

20 

22 

22 

22

21 

21 

22 

36 

108

60 

49 

48 

42 

40

40 

39 

38 

S7 

37 

36

Feb.

36 

38 

37 

37 

36

34 

39 

39 

38 

39

42 

48 

41 

38 

38

40 

43 

46 

48

50

47 

48

51 

58 

73

63 

70 

70

Month

Octo 

Hove 

Deoe

Ca

Janu 

Fetor 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Mar.

62 

58

55 

53 

64

57 

54 

51 

51 

50

58 

53 

53 

53 

55

56 

55 

56 

62 

67

61 

62 

66 

60 

56

56 

58 

67 

61 

59 

59

Apr.

56

55 

53 

54 

57

59 

61 

62 

65 

67

69 

72 

77 

80 

78

70 

73 

75 

75

72

77 

84 

87 

87

81

73 

73 

74 

72 

68

Secondf oo.t -days

1,416 

1,104 

1,043

16,134

964 

1,287 

1,790 

2,106 

1,575 

1,476 

1,699 

1,583 

1,551

17,594

May

65 

64 

63 

60 

57

55 

54 

52 

52

51

49 

49 

49 

52 

56

52 

52 

52 

56 

54

48 

44 

43 

43 

43

43 

43 

44 

43

43 

42

Maximum

S6 

46

41

119

108 

73 

67 

87 

65 

56 

60 

59 

59

108

June

38 

36 

40 

52 

54

52 

50 

50 

49 

50

54 

54 

53 

50 

49

48 

49 

53 

52 

48

46 

46 

45 

45 

44

46

56 

56 

58 

51

July

48 

47 

45 

45 

48

50 

54 

57 

59 

59

57 

60 

59 

56 

54

55 

54 

57 

58 

58

69 

59 

59 

57 

57

57 

57 

56 

56 

54 

48

Minimum

28 

32 

27

24

12 

34 

50 

. 53 

42 

36 

45 

43 

44

12

AUg.

43 

44 

51 

55 

56

58 

58 

59 

52 

53

53 

54 

58 

55 

49

48 

47 

47 

50 

50

50 

51 

57 

52 

47

47 

48 

48 

48 

47 

48

Mean

45.7 

36.8 

33.6

44.1

31.1 

46.0 

57.7 

70.2 

50.8 

49.2 

54.8 

51.1 

51.7

48.2

Sept.

47 

50

58 

59 

56

56 

56 

56 

56 

57

57 

57 

50 

44

44

45 

51 

51 

51 

53

54 

47 

48 

47 

51

52 

52 

52 

48 

46

Runoff In 

acre-feet

2,810 

2,190 

2,070

31,000

1,910 

2,550 

3,550 

4,180 

3,120 

2,930 

3,370 

3,140 

3,080

34,900
SANTA ANA RIVER BASIN 45

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

Location.- Water-stage recorder, lat. 34°04'00", long. 117°17i45", in San Bernardino Grant, 

at B street Bridge, 0.8 mile downstream from San Timoteo Creek, 1 mile upstream from 

Warm.kJreek, and 3 miles south of San Bernardino, San Bernardino County. Altitude of 

gage, about 970 feet.

Records available.- March 1939 to September 1949. 

Average discharge.- 10 years, 15.2 second-feet.

Extremes.- Maximum discharge during year,' 89 second-feet Jan. 13 (gage height, 4.46 feet); 

no flow during parts of October, June,-July, August, and September.

1939-49: Maximum gage height recorded, 6.50 feet Jan. 23, 1943; maximum discharge 

uncertain; no flow on many days each year.

Remarks.- Records poor. Storage in Bear Valley Reservoir (capacity, 73,QQO acre-feet). 

Many diversions for irrigation above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

e

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

37 

28 

29 

30 

31

Ooto 

Hove 

Deee

Ca

Janu 

Febr 

Hare 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

Oct.

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

6.4

1.8 

1.3

.3 

,2 

.1 

.1 

.1

.1 

.2 

.4 

.4 

8,8 

2.2

Nov.

0.5 

.2 

.3 

.4 

.5

1.2 

.4 

.2 

.8 

3.6

. 4.0 

3.2 

2.3 

2,6 

2.9

4.0 

3.6 

3.4 

3.7 

4.4

3.4 

2.4 

1.2

1.5 

.7

.3 

.3 

.5 

.6

1.4

Dec.

1.2 

,9 

.9 

2.6 

1.4

1.2 

1.0 

1.0

1.5 

2,2

2.5 

2.5 

1.5 

1.5 

1.2

.9 

1.9 

2.7 

.9 

,9

1.2 

4.5 

6.8 

1.0 

1.1

1.5 

26 

3.9 

2.8 

4.5 

5.5

Jan.

2,8

2.8 

2.4 

3.3

5.1

4.8 

3,0 

3.0 

4,3 

3.1

11 

14 

39 

13 

5.9

4.1 

3.9 

4.1 

4.4

9.5

5,4 

5.4 

14 

12 

5.9

5.7 

5.5 

6.1 

6.1 

5.5 

5.2

Feb.

4.6 

4.3 

6.1

5.5 

5.2

5.0 

11 

7.9 

9.7 

9.1

8.9

e.o

6.5 

6.7 

6.7

5.7 

5.7 

6.1 

6.3 

6.3

6.7 

6.5 

6.9 

9.4 

8.4

12 

22 

17

Month

her..,...,. .............................

lendar year 1948

h. ..,..,..,,,,..,.... ,,...,,,,,..,...,.,

ter year 1948-49 ,,.,..,.,..,..,,......,

Mar.

11 

8.6 

8.6 

7,4

12

8.9 

8.9 

6.7

6.1 

7.6

10 ' 

8.4

6.5 

5.4 

5.4

5.5 

6.1 

5.5 

6.5 

7.9

7.1 

9.1 

9.7 

6.7

6.5

5.Z

5.5 

5.1 

7.6 

6.3 

6.3

Apr.

6.7 

5.0 

3.7 

3.1 

3.0

2.5 

2.7 

2.7 

2.0 

1.8

2.0 

3.2 

2.7 

1.3 

1.2

1,2 

1.0 

1.2 

1.3 

1.1

.9 

1.0 

1.2 

1,2 

1.2

1.1 

.7 

.7 

1,6 

,9

Secondfoot-days

22.4 

54.5 

89,2

1,011.6

220.3 

224.2 

228.1 

59.9 

38.2 

5.3 

3.4 

3.2 

13.4

962.1

May

1.0 

.5 

.4 

.5 

.3

.3 

,4 

.7 

.7 

.9

.5 

.6 

.7 

.7 

.9

2.4 

2.8 

4.0 

5.0 

3.1

1.8 

dl.6 

dl.5 

1.3 

1.2

.7 

.6 

.9 

.8 

1.0 

.6

Maximum

8.8 

4.4 

26

50

39 

22 

12 

6.7 

5.0 

.6 

1.0 

Z.O 

2,2

39 '

June

dO.6 

d.5 

d.4 

d.4 

d.3

d.3 

d.4 

.3 

.1 

.1

.2 

.1 

.2 

.2 

.4

.2

.2

.1 

0

.1

.1.1

0 

0 

0

0 

0 

0 

0 

0

July

0.1 

.2

0 

0 

0

,6 

1.0 

.4 

.4 

0

0 

0 

.6 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

.2 

.9

0

?.4 

4.3

5.1 

.7 

.3 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

2.0

.9 

,3 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

0.72 

1.82 

2.88

2.76

7.11 8.01' 

7.36 

2.00 

1.23 

.18 

.11 

.10 

.45

2.61

Sept.

0 

0 

0 

0 

0

0 

0 

0 

.2 

2.2

.8 

1.3 

1.3 

2.0 

.3

0

0

.1 

.1

.4

.1

0 

0 

0 

0

.6 

l.S 1.1

.8 

.9

Runoff in 

acre-feet

44

108 

177

2,010

437 

445 

452 

119 

76 

11 

6.7 

6.3 

27

1,910

d Doubtful gage-height record; discharge computed on basis of 1 discharge measurement and interpolation.
46 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°57'55", long. 117°27'55", in Jurupa (Stearns)

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 1949.

Average discharge.- 19 years (1929-37, 1938-49), 62.2 second-feet.

Extremes.- Maximum discharge during year, 226 second-feet Jan. 13 (gage height, 3.14 feet);- 

minimum daily, 22 second-feet July 7.

1929-49: 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 no gage-height record and those below 

25 second-feet and above 100 second-feet, which are poor. Considerable diurnal fluctuation occurs throughout season of low flow. Storage in Bear Valley Reservoir (capacity, 

72,000 acre-feet). There are many diversions for irrigation in basin above this station. 

The Metropolitan Water District of Southern California discharged 4,670 acre-feet of 

Colorado River water into Santa Ana River above station during August and September.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2

3

4

6

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a27

a29

a32

34

34

38

34

34

38

42

46

42

42

38

38

34

57

65

46

38

42

38

38

38

42

42

42

46

46

63

46

Nov.

42

46

50

42

38

46

60

46

50

50

50

70

50

50

46

46

46

42

55

60

46

46

50

55

46

55

42

42

42

42|

Dec.

44

45

46

50

46

44

43

42

42

41

43

41

42

41

42

48

46

44

42

42

42

49

50

45

44

45

74

44

42

42

43

Month

Jan.

42

41

41

41

43

42

41

43

50

49

51

54

84

50

41

38

38

41

44

49

44

42

54

61

50

49

50

49

46

49

48

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

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

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

Calandar year 1948 ............

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

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

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

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

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

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

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

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

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

Water year 1948-49 ............

Feb.

43

42

48

45

45,

44

61

64

54

54

64

65

50

49

50

52

53

53

53

54

57

50

48

53

61

62

127

102

_

-

Seoondfoot-days

1,271

1,451

1,394

16,144

1,465

1,603

2,306

1,032

1,100

940

794

2,012

1,989

17,357

Mar.

89

82

94

99

126

102

108

105

97

97

110

100

85

72

66

61

59

56

59

72

66

57

68

61

54

49

45

46

43

39

39

Apr.

40

39

39

37

35

35

35

35

35

34

33

32

34

34

35

35

35

34

35

34

33

31

31

34

33

33

33

32

34

33

-

Maximum

65

70

74

280

84

127

126

40

42

38

30

82

78

127

May

33

35

38

35

33

31

33

34

35

37

33

33

34

37

40

40

42

a41

a40

a39

a38

a38

37

35

33

35

33

32

32

30

34

Minimum

27

38

41

22

38

42

39

31

30

28

22

30

56

22

June

31

33

28

28

29

32

30

30

30

31

32

37

38

35

29

31

31

32

35

30

31

29

28

29

31

32

34

34

31

29

-

Mean

41.0

48.4

45.0

44.1

47.3

57.2

74.4

34.4

35.5

31.3

25.6

64.9

66.3

47.6

July

27

26

26

26

23

23

22

23

25

23

26

26

24

24

25

a26

a27

a27

28

28

25

24

26

30

28

25

26

26

28

26

25

Aug.

38

61

57

57

59

61

66

66

72

60

33

61

68

68

74

68

68

66

61

60

70

64

66

66

66

65

82

78

80

80

74

Runoff in 

acre-feet

2,520

2,880

2,760

32,010

2,910

3,180

4,570

2,050

2,180

1,860

1,570

3,990

3,950

34,420

Sept.

74

76

78

72

74

74

70

64

68

63

66

66

61

64

56

57

61

59

63

57

63

59

61

591

70

74

70

72

72

66

-

Inflow in 

aere-feett

0

0

0

-

0

0

0

0

0

0

0

2,290

2,380

4,670

Peak discharge (base, 500 *ec.-ft.).- Ho peak above base.

__ . __tan Water District of Southern California included in figures 

given in preceding columns. Records furnished by that agency. 

a Ho gage-height reoordj discharge interpolated.
SANTA ANA RIVER BASIN 47 

Santa Ana River at hamner Avenue, near Corona, Calif.

Location.- Water-stage recorder, lat. 33°56'SO", long. 117°33'30", in Jurupa Grant, at 

Hamner Avenue Bridge, 5 miles north of Corona, Riverside County. Altitude of gage, 

about 570 feet (from topographic map).

Records available.- May 1930 to December 1949 (irrigation seasons only).

Remarks.- Records fair. Storage in Bear Valley Reservoir and diversions for irrigation 

aoove station. Plow past station includes water imported from Colorado River (see Santa 

Ana River at Riverside Narrows, near Arlington).

Cooperation.- Nineteen discharge measurements furnished by Orange County Flood Control 

district, through J. A. Bradley, flood-control engineer.

Discharge, In second-feet, April to December 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t62

Feb.

t72

Mar.

t77

Apr.

_

_

_

.

-

_

_

_

_

-

_

_

_

-

-

.

_

_

_

-

_

_

-

_

-

_

_

f35

39

42

-

May

42

43

42

42

40

34

34

34

34

34

34

36

39

42

44

44

47

45

45

46

42

42

37

34

33

38

39

39

38

37

38

Month

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

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

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

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

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

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

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

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

December. .................. ^ ..... . .. 

The period. ...............................

June

39

38

36

35

37

37

38

35

34

32

33

36

39

35

31

31

30

30

33

31

26

29

32

34

33

32

32

32

28

28

-

July

Secondfoot-days

1,218

998

823

1,975

2,081

2,352

2,431

-

29

25

26

29

28

26

24

23

24

24

25

23

23

23

26

25

28

31

31

33

31

32

31

31

28

23

23

24

25

25

24

Aug.

28

64

64

64

64

61

59

57

58

58

36

50

63

66

66

67

69

70

71

66

68

67

67

68

70

68

71

72

76

75

72

Maximum

47

39

33

76

74

90

97

-

Sept.

70

69

70

71

71

71

70

69

69

67

69

69

68

66

64

64

67

69

74

72

72

72

71

71

72

74

72

69

65

64

-

Oct.

66

69

70

71

72

72

72

71

70

69

74

80

85

90

86

85

84

83

79

77

76

75

72

71

70

74

80

85

80

75

69

Nov.

69

70

74

72

74

75

76

76

78

97

91

84

81

84

85

84

81

83

83

83

85

81

81

83

83

64

84

84

83

83

-

Dec.

f83

t87

-

_

-

_

.

_

_

-

_

_

-

-

-

_

-

-

.

-

_

-

-

.

-

_

-

_

.

tl!9

-

Mini Mean «£«^

33 39.3 2,420

28 33.3 1,980

23 26.5 1,630

28 63.7 3,920

64 69.4 4,130

66 75.9 4,670

69 81.0 4,820

23,570

t Result of discharge measurement.

f Computed on basis of partly estimated gage-height record.
48 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°55'30", long. 117°35 I 40", In Jurupa Grant, at 

Auburndale Bridge, 2 miles upstream from Temescal Creek and 4 miles northeast of 

Corona, Riverside County.

Records available.- May 1930'to December 1949 (irrigation seasons only).

Remarks - Records fair except those for periods of ho gage-height record, which are poor. 

storage in Bear Valley Reservoir and diversions for irrigation above Station. Flow 

past station includes water imported from Colorado River (see Santa Ana River at 

Riverside Narrows, near Arlington).

Cooperation.- Nineteen discharge measurements furnished by Orange County Flood Control 

district, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, April to December 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t79

Feb.

t92

Mar.

t90

Apr.

_

_

.

..

-

_

_

_

..

-

.

_

_

_

-

_

,.

L.

_

-

.

.

*

_

-

_

_

44

48

54

-

May

56

60

64

64

62

54

51

43

46

43

46

48

46

53

56

56

60

61

62

65

61

56

55

51

49

4949 '

49

48

45

45

Month

Aprl L.......................................

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

Augu 

Sept 

OctOL

it ......................................

»mber . . r ................................

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

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

The period ............... ............ 

June

46

44

44

42

44

45

43

44

44

40

41

44

51

49

39

S8

38

38

36

38

34

29

25

26

29

34

36

41

39

35

July

36

32

31

31

31

27

27

24

27

29

34

36

33

34

34

34

35

37

39

38

34

28

29

29

29

28

29

31

35

36

38

Aug.

39

60

59

54

51

54

52

53

58

56

42

51

67

71

75

66

59

54

51

53

67

72

71

69

70

65

63

62

f65

f66

a65

i&% " **-

1,653 65

1,178 51

995 39

1,860 75 

1,968 78 

2,420 90

2,678 107

-

sept.

a65

f64

66

S7

67

64

66

62

64

64

65

67

65

f63

f59

f59

59

61

67

67

70

69

66

65

65

65

67

71

71

78

-

Oct.

79

78

74

74

74

75

76

76

76

76

78

f80

a82

f84

SO

81

81

80

76

78

76

75

73

75

75

75

85

90

85

80

71

Nov.

74

76

81

85

87

88

91

92

94

107

102

88

87

91

88

90

88

87

90

90

95

94

90

91

94

87

88

88

88

87

"

Minimum Mean

43 53.3

25 39.3

24 32.1

39 60.0 

59 63.6 

71 78.1

74 89.3

-

Dec.

85

t91

_

_

-

_

-

-

^

-

..

_

»

_

-

_

*.

-

.

-

_

-

.

.

-

_

.

_

*

t!24

-

Runoff in 

acre -feet

3,280

2,340

1,970

3,690 

3,900 

4,800

5,310

25,290

t Result of discharge measurement.

a Ho gage-height record; discharge Interpolated.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 49

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

Location.- Water-stage recorder, lat. 33°53'OQ", long. 117°38'30", in La Sierra Grant, 

i.y&u feet downstream from Prado Dam and 1 mile southwest of Prado, Riverside County. 

Datum of gage is approximately 449 feet above mearj sea level '(Corps of Engineers 

survey).

Records available.- March 1940-to September 1949. January '1919 to November 1940, and for 

irrigation seasons, May to November, 1941, 1942, 1945-49, at site 3 miles downstream, 

published as Santa Ana River near Prado (see following page).

Average discharge..- 30 years (1919-49), 143 second-feet.

Extremes.- Maximum discharge during year, 251 second-feet Jan. 13 (gage height, 2.74 

I'eet)'; minimum daily, 37 second-feet July 3.

1940-49: 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 fail?. Storage in Bear Valley Reservoir and diversions for irrigation 

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.- Eleven discharge measurements furnished by Corps of Engineers; twenty-two 

by Orange County Flood Control District, through J. A. Bradley, flood-control engineer.

Discharge, in second-feet, water yeai- October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

1 

& 

9 

10

11 

1Z 

13 

14 

15

16 

17 

18 

19 

20

Zl 

122 

23 

24 

ZS

£6 

27 

28 

Z9 

30 

31

00 to 

Hove 

Dace

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Oct.

45 

47 

50 

53 

54

54 

53 

50 

53 

56

56 

58 

54 

53 

53

56

61 

72 

74 

70

66 

64 

61 

59 

59

59

34 

64 

68 

7Z 

74

Nov.

68 

68 

70 

68 

64

66 

72 

72 

72 

72

70 

72 

72 

68 

70

76

74 

72 

70 

74

72 

70 

76 

80 

80

82 

80 

76 

72 

74

Dec.

76 

74 

72 

80 

78

78 

78 

80 

80 

80

80 

80 

84 

84 

86

88 

108 

111 

96 

90

90 

94 

108 

111 

106

103 

165 

136 

101 

88 

82

Jan.

88 

90 

86 

77 

78

84 

88 

94 

108 

118

121

Us

201 

167 

129

114 

100 

102 

114 

145

152 

123 

131 

170 

129

114 

108 

106 

94 

100 

98

Feb.

92 

94 

108 

121 

114

110 

127

143 

118 

116

116 

131 

123 

116

114

114 

114 

118 

118 

121

121

He

102 

104 

114

114 

170 

185

Month

lendar year 1948

ter year 1948-49 .......................

Mar.

160 

147 

147 

150 

177

152 

152 

154 

145 

143

160 

157 

143 

134 

136

138 

138 

129 

125 

131

127 

116 

121 

121 

110

104 

104 

104 

100 

94 

94

Apr.

90 

90

92 

92 

88

86 

84 

84 

77 

78

75 

72 

75 

78 

77

75 

74 

72 

72 

69

59 

56 

56 

59 

62

64 

67 

70 

70 

74

Secondfoot -days

1,832 

2,172 

2,867

28,821

3,565 

3,354 

4,113 

2,236 

2,018 

1,458 

1,311 

2,098 

2,169

29,193

May

67 

68 

70 

70 

67

60 

59 

59 

59 

59

60 

59 

59 

62 

65

68 

77 

78 

77 

84

74 

72 

68 

64 

57

59 

59 

59 

59 

60 

60

Maximum

74 

82 

165

460

201 

185 

177 

92 

84 

56 4-8 

77 

78

201

June

52

52 

52 

51

51

51 

51 

49 

48 

51

52 

54 

56 

52 

52

51

51 

54 

54 

54

46 

40 

38 

38 

39

40 

44 

46 

45 

44

July

44 -42 

37 

39 

39

42 

42 

40 

39 

39

40 

39 

40 

39 

39

42 

42 

46 

45 

45

44 

44 

45 

44 

44

44 

42 

45 

45 

46 

48

Minimum

45

64 

72

35

77 

92 

94 

56

57 

38 

37 

51 

65

37

Aug.

51 

58 

65 

65 

67

65 

67 

68 

68 

70

57 

52 

68 

72 

77

74 

72 

72 

70 

70

75 

75 

74 

72 

68

67 

64 

67 

68 

70 

70

Mean

59.1 

72.4 

92.5

78.7

115 

120 

133 

74.5 

65.1 

48.6 

42.3 

67.7 

72.3

80.0

Sept.

72 

78 

78 

78 

75

72 

75 

75 

75 

77

77 

75 

67 

67 

68

65 

65 

68 

70 

70

67 

67 

67 

67 

70

75

78 

77 

77 

77

Runoff In 

acre-feet

3,630 

4,310 

5,690

57,170

7,070 

6,650 

8,160 

4,440 

4,000 

2,890 

y.,600 

4,160 

4,300

57,900
50 SANTA ANA RIVER BASIN 

Santa Ana River near Prado, Calif.

Records available.- January 1919 to November 1942, May 1945 to December 1949 (irrigation 

seasons only since October 1940).

Extremes.- 1919-49: Maximum discharge, 100,000 second-feet (estimated) Mar. 3, 1938 

(gage height, 17.3 feet, site and datum then in use, from floodmarks in gage well); 

minimum, 25 second-feet Aug. 18, 1929, Aug. 24, 1936.

Remarks.- Records fair except those above 100 second-feet, which 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.- Twenty-five discharge measurements furnished by Orange County Flood Control 

uistriet, through J. A. Bradley, flood-control engineer.

Revisions (water year).- W 881: 1938.

Discharge, in second-feet, January to December 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Jan.

t!24

Feb.

til?

Mar.

t!38

Apr.

.

.

-

_

-

.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

f74

77

74

~

May

72

71

71

73

71

66

68

67

69

66

66

62

62

68

72

79

87

93

95

96

87

85

78

65

62

68

73

72

68

65

62

Month

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

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

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

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

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

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

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

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

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

The period ................................

June

64

61

60

55

56

54

54

54

53

54

55

58

61

62

57

55

54

54

57

59

54

49

44

43

48

52

54

58

54

51

July

Secondfoot-days

2 259

1^644

1 , 458

2 254

2*357

2,964 

3,402

-

49

47

41

44

40

42

43

44

47

49

52

51

48

47

44

44

46

46

48

48

49

48

48

48

a48

f48

48

50

50

50

51

Aug.

50

64

76

73

75

78

76

75

75

78

64

53

66

71

75

78

74

74

75

73

75

81

80

79

78

76

70

71

73

74

74

Maximum

96

64

52

81

91

110

158

-

Sept.

72

76

75

76

78

75

75

75

75

76

81

87

78

66

73

71

75

80

85

84

84

81

79

78

78

80

82

84

87

91

-

Oct.

92

94

90

82

85

86

88

90

90

92

96

99

103

110

106

104

103

97

94

96

97

94

96

94

93

92

97

99

101

103

101

Nov.

102

102

102

103

103

104

106

110

112

132

158

132

121

111

111

111

108

108

110

112

112

115

114

112

112

115

118

117

117

112

-

Dec.

fl!7

till

-

-

-

_

-

-

-

-

_

-

-

-

-

.

-

-

-

-

.

-

_

_

-

_

-

_

-

t!50

-

Mini Mean »£«£

62 72.9 4,480 

43 54.8 3,260

50 72^7 4^470

66 78 .6 4, 680

82 95. 6 5, 880

102 113 6,750

32,410

t Result of discharge measurement.

a No gage-height record; discharge interpolated.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 

Santa Ana River at Santa Ana, Calif.

51

Location.- Water-stage recorder, lat. 33°45'ClQ", long. 117°54'20", in Las Bol^as Grant at 

jfirth 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 1949. 

Average discharge.- 26 years, 24.6 second-feet.

Extremas.- Maximum discharge during'year," 2.7 second-feet Jan. 13 (gage height, 2.19 

reet ); no flow during most of year.

1923-49: 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. 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, about 19 and 16 miles, respectively, above station. Regulation by Prado floodcontrol 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.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

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

.1

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0 

0 

0

.1 

.3 

.2 

.1 

0

0 

0 

.2 

.2

.1

0 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

.3 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.4 

0 

0

0 

0 

0 

0

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194

ter year 1948-49 ........................

Mar. Apr.

Secondfoot -days

0.2 

0 

1.6

35.3

.5 

0 

0 

0 

0 

0 

0 

0 

0

2.3

May

Maximum

0.1 

0 

.3

8.0

.4 

0 

0 

0 

0 

0 

0 

0 

0

.4

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0.01 

0 

.05

.10

.02 

0 

0 

0 

0 

0 

0 

0 

0

.01

Sept.

Runoff In 

acre-feet

0.4 

0 

3.2

70

1.0 

0 

0 

0 

0 

0 

0 

0 

0

4.6

Peak discharge (base, 150 sec.-ft.).- Ho peak above base.
52 SANTA ANA RIVER BASIN 

Southern California Edison Co.'s canal below power plant No. 2, near Mentone, Calif,

Location.- Water-stage recorder, lat. 34°07'40", long. 117°04'25", in SE^NEv sec, 34, T, 

 i N., K. 2 W., 75 feet downstream from tailrace of Southern California Edison Co,"a

Santa Ana River power plant No. 2, 3 miles upstream from plant No. 3, and 5,5 miles

northeast of Mentone,

Records available.- June 1948 to September 1949.

Extremes.- Maximum daily discharge during year, 82 second-feet Apr. 23, 24; no flow

1948-49: Maximum daily discharge, that of Apr. 23, 24, 1949; no flow Jan. 4-18, 1949.

Remarks.- Records good. Canals of Southern California Edison Co, divert water from Santa 

fflia Kiver and tributaries for use successively in three power plants, of which No. 2 is 

the middle one and No. 3 is the lowest. This canal receives water from plant No. 2, 

from a bypass around plant No. 2, and from ground water pumped into canal above this 

station. There are no wapteways nor artificial' additions of water between this Station 

and the forebay of plant No, 3 where water is diverted into Greenspot pipe line (see 

P. 53).

Cooperation.- Gage-height record and 18 discharge measurements furnished by Southern 

Oanrornia Edison Co.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

54 

55 

55 

56 

54

50 

48 

48 

49 

50

51 

46 

47 

43 

43

43 

44 

50 

31 

36

4Q 

38 

42 

42 

43

42 

44 

47 

49 

48 

28

Nov.

33 

36 

36 

34 

32

33 

34 

35 

35

35

35

39 

44 

45 

46

44 

38 

36 

36 

37

36 

36 

36 

36 

36

37 

35 

37 

36 

36

Dec,

37 

38 

39 

37 

36

35 

34 

34 

31 

28

28 

28 

33 

35 

34

35 

39 

32 

32 

41

36 

41 

32 

27 

29

29

37 

31 

30 

33 

33

Jan.

32 

33 

9.6 

0 

0

0 

0 

O 

0 

0

0 

0 

0 

0 

0

O 

0 

0 

13.4 

48

43 

41 

39 

36 

35

36 

36 

35 

34 

34 

34

Feb.

34 

36 

35 

35 

34

32 

36 

36 

35 

36

38 

39 

36 

34 

34

37 

40 

42 

44 

45

43 

44 

47 

52 

62

54 

55 

52

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Hav

June 

July 

ftugu

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

48 

48 

46 

47 

52

47 

45 

43 

44 

44

50 

47 

46 

47 

SO

51 

50 

51 

56 

60

56 

57 

59 

54 

51

51 

53 

60 

54 

52 

52

Apr.

50 

49 

48 

49 

52

54 

56 

57 

60 

62

64 

67 

72 

75 

73

66 

69 

71 

71 

68

73 

79

82 

82 

77

70 

71 

72 

71 

67

Secondfoot-days

1,416 

1,104 

1,044

-

539.0 

1,147 

1,571 

1,977 

1,540 

1.47E 

1,699 

1,583 

1,551

16,646.0

May

64 

63 

62 

59 

56

54 

53 

51 

51 

50

48

48 

48 

51 

54

51 

51 

51 

56

51

46 

43 

42 

42

42

42 

42 

43 

42 

42 

42

Maximum

56 

46 

41

-

48 

62 

60 

82 

64 

58 

60 

59 

59

82

June

38 

36 

40 

52 

53

52 

50 

50 

49 

50

54 

54 

53 

50 

49

48 

49 

53 

52 

48

46 

46 

45 

45 

44

46 

56 

58 

58 

51

July

48 

47 

45

45 

4S

50 

54 

57 

59 

59

57 

60 

59 

56

54

55 

54 

57 

58 

58

59 

59 

59

57 

57

57 

. 57 

56 

56 

54 

48

Mlnlmun

28 

32 

27

-

O 

32 

43 

49 

42 

36 

45 

43 

44

0

Aug.

43 

44 

51 

55 

56

58 

58 

59 

52 

53

53 

54 

58 

55 

49

48

47 

47 

50 

SO

50 

51 

57 

52 

47

47 

48 

48 

48 

47 

48

Mean

45.7 

36.8 

33.7

-

17.4 

41,0 

50.7 

65.9 

49.7 

49.2 

54.8 

51.1 

51.7

45.6

Sept.

47 

50 

58 

59 

56

56 

56 

56 

56 

57

57 

57 

50 

44 

44

45 

51 

51 

51 

53

54 

47 

48 

47 

51

52 

52 

52 

48 

46

Runoff In 

acre-feet

2,810 

2,190 

2,070

-

1,070 

2,280 

3,120 

3,920 

3,080 

2,930 

3,370 

3,140 

3,080

33,030
SANTA ANA RIVER BASIN 53

Greenspot pipe line near Mentone, Calif.

Location.- Staff gage and sharp-crested weir, lat. 34°06'20", long. 117°05'55", in SW£ 

sec. ""4, T. 1S.,R. 2W.,at point of diversion from forebay of Southern California 

Edison Co's Santa Ana River No. 3 power plant, 3 miles northest of Mentone.

Records available.- September 1911 to September 1949. August 1897 to December. 1901, 

Aprij. lyua to December 1904 (fragmentary), about 1 mile Upstream near former point of 

diversion from Santa Ana River; records not entirely comparable.

Average discharge , - 38 years (1911-49), 6.03 second-feet.

Extremes.- Maximum daily discharge during year, 9.0 second-feet Oct. 1 to Dec. 26, Apr 

GHEcTSept . 30; no flow Jan. 3-25, Jan. 29 to Mar. 10.

1911-49: Maximum daily discharge, 11 second-feet June 12, 1943; no flow for at 

least short periods each year.

For long periods during" most years, daily discharge has been reported as 9'.0 secondfeet.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

1? 

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 

9.0 

9.0 

9.0

Nov.

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

Dec.

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

6,6 

5,0 

5.0 

5.0 

5.0

Jan.

5.0 

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

3.8

s.o

2.5 

0 

0

0

Feb.

Month

00 to 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 ...............

Mar.

0 

0 

0 

0

o

0 

0

o

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 

5.9 

5,7 

5.7 

5.7

Apr.

5.7 

5.7 

5.7 

5.7 

7.2

9.0 

9.0 

9.0

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0

9.0

9.0 

9,0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

Secondfoot -days

279.0 

270.0 

260.6

2,857.7

22.3 

0 

122.8 

255.0 

279.0 

270.0 

279.0 

279.0 

270.0

2,586.7

May

9.0 

9.0 

9.0 

9.0

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9,0 

9.0 

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 

9.0 

9.0

9.0

6.0 

0 

6.0 

9.0 

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

Minimum

9.0 

9.0 

5.0

5.0

0 

0 

0 

5.7 

9.0 

9.0 

9.0 

9.0 

9.0

0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0 

9.0

Aug.

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

' 9.0 

9.0 

9.0

9.0 

9.0

9.0 

9.0 

9.0 

9.0

Mean

9.00 

9.00 

8.41

7.81

.72 

0 

3.96 

8.50 

9.00 

9.00 

9.00 

9.00 

9.00

7.09

Sept.

9.0 

9.0 

9.0 

9.0 

f.O

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

9.0 

9.0

9.0 

9.0 

9.0 

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

553 

556 

517

5,670

44 

0 

244 

506 

553 

536 

553 

553 

536

5,130

947808 0-51-3
54 SANTA ANA RIVER BASIN 

Mill Creek near Craftonville, Calif.

Location.- Water-stage recorder, lat. 34°05'20", long. 117°02'2S", in NE^NE^ sec 13, T. 1

 SI TT 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 Craftohville. Datum of gage, 2,915 feet above mean sea level (Southern California Edison Co. datum).

Drainage area.- 39.9 square miles. ft

Records available.- January 1919 to September 193ft, October 1947 to September 1949.

Average discharge.- 21 years (1919-38, 1947-49), 14.7 second-feet. Average combined dis-

 charget river and canals, 21 years (1919-38, 1947-49), 37.5 second-feet.

Extremes.- Maximum daily discharge during year, 14 second-feet Apr. 19; minimum daily ais-

 charge, 0.1 second-foot on many days.

1919-38, 1947-49: Maximum discharge, 18,100 second-feet Mar. 2, 1938; all water diverted into Mill Creek power canal No. 1 at various times. ; 

Remarks.- Records fair. Mill Creek power canals Nos. 1, 2, and 3 divert from points 100

 feet above, 3 miles above, and 6 miles above station, respectively. Sum of discharge of 

creek, Mill Creek power canal 1, and Mill Creek power canals 2 and 3, near Craftonville, 

is given in table on following page.

Discharge, In second-feet, water year Oc-tober 1948 to September 1949

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

£6 

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

Nov.

0.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.1

.1

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 .1

.1 

.1 

.1

.1 

.1 

.1

Jan.

0.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

1.9

.9 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

' .1 

.1

Feb.

0.1 

.1 

.1

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

2.2 

1.9 

.4

.2 

.2 

f.3

Month

oeto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 .......................

ter year 1948-49 .......................

Mar.

fO.3 

.3 

.3 

.5 

.7

.5

.3 

.2 

.2 

.2

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

3.5 

1.6

Apr.

0.3 

.1 

.1 

.1 

.2

.2

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

13 

14 

11

10 

9

2 

1 

3

7 

1 

1 

2 

2

Secondfoot -days

3.1 

3.0 

3.1

49.1

5.7 

7.4 

13.1 

79.6 

21.0 

3.4 

5.0 

4.3 

3.6

152.3

May

1 

.9 

.9 

.9 

.9

.8 

.8 

2 

2 

1.3

3.5 

1.3 

1.0 

.5

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1 

.1

Maximum

0.1

.1 

.1

1.5

1.9 

2.2 

3.5 

14 

3.5 

.2 

.2 

.2 

.2

14

June

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

f.2 

f.2 

.2 

.2 

 1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Minimum

July

0.1 

.2 

.2 

.2

.1

.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.2 

.2 

.1

0.1 

.1 

.1

-

.1 

.1 

.2

.1 

.1 

.1 

.1 

.1 

.1

.1

Aug.

0.1 

.1 

.1 

.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

Mean

0.10 

.10 

.10

.13

.18 

.26 

.42 

2.65 

.68 

.11 

.16 

.14 

.12

.42

Sept.

0.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff In 

acre-feet

6.1 

6.0 

6.1

97

11 

15 

26 

158 

42 

6.7 

9.9 

8.5 

7.1

302

f Computed on basis of partly estimated gage-height record.

Note.- Doubtful gage-height record, Mar. 6-7, Apr. 18 to May 1O, May 12-16, 18-27, May 29 to June 

1, June 4-9, July 12, 16-19, 24-26, Sept. 11; discharge computed on basis of records of combined 

discharge of Santa Ana River and canal near Mentone and Interpolation.
SANTA ANA RIVER BASIN 55

Combined discharge In second-feet, of Mill Creek and canals near Craftonvllle, Calif 

water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

3 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

9.8 

9.9

9.4 

10

10 

10 

9.9 

8.0 

7.6

10 

10 

10 

10 

10

7.8 

10 

19 

14 

13

12 

12 

13 

12 

11

11 

11 

12 

12 

13 

13

Nov.

12 

13 

12 

11 

13

13 

13 

12 

12 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

9.8 

8.3 

9.3 

9.3 

9.5

Dec.

12 

13 

13 

13 

12

13 

13 

13 

12 

12

13 

13 

12 

11 

11

12 

13 

13 

12 

12

13 

10 

7.0 

9.2 

12

13 

11 

6.4 

6.8 

8.1 

8.5

Month

Octo 

Hove 

Dece

Ca

Janu 

Febii 

Hare 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

Jan.

13 

13 

8.8 

9.4 

10

11 

12 

10 

10 

9.0

10 

10 

11 

10 

11

11 

10

11 

11 

15

13

12 

12 

12 

12

12 

12 

12 

10 

11 

11

Feb.

13 

12 

12 

12 

12

12 

12 

12 

12 

12

13 

13 

12 

12 

12

12 

14 

14 

15 

16

15 

16 

2.7 

18 

18

18

18 

18

lendar year 1948 

Eiry

ter year 1948-49 .......................

. Mar.

16 

16 

16 

16 

18

16 

16 

15 

15 

15

17 

16 

16 

16

17

17 

17 

18 

20 

20

19 

19 

19 

18 

17

17 

17 

21 

19 

12 

18

Apr.

18 

17 

17 

16 

17

18 

18 

18 

20 

21

22 

23 

23 

24 

24

23

26 

25 

25 

24

24 

27 

34 

33 

34

38 

32 

33 

32 

32

Secondfoot-days

340.4 

351.2 

353.0

5,549.0

345.2 

377.7 

529 

738 

881 

605 

457 

420 

418

5,815.5

May

31 

31 

32 

31 

31

31 

29 

30 

30 

29

30 

28 

28 

30

30

28 

27 

28 

31 

30

28 

27 

26 

26 

26

26 

26 

26 

25 

25 

25

Maximum

19 

13 

13

27

15 

18 

21 

38 

32 

24 

17 

15 

15

38

June

24 

24 

24 

23 

23

22 

22 

22 

21 

21

20 

20 

20 

20 

20

20 

20 

20 

20 

19

19 

18 

18 

18 

18

18 

18 

18 

18 

17

Minimum

July

17 

17 

17 

16 

16

16 

16 

16 

16 

15

15

15 

15 

15 

15

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

13 

14 

13 

13 

13

7.6 

8.3 

6.4

6.4

8.8 

2.7 

12 

16 

25 

17 

13 

12 

13

2.7

Aug.

13 

13 

12 

12 

12

12 

12 

14 

15 

15

15 

15 

15 

15 

14

14 

14 

14 

14

13

13 

13 

13 

13 

13

13 

13 

13 

13 

15 

15

Mean

11.0 

11.7 

11.4

15.2

11.1 

13.5 

17.1 

24.6 

28.4 

20.2 

14.7 

13.5 

13.9

15.9

Sept.

15 

15 

14 

14 

14

14 

14 

14 

14 

14

14 

14

14 

14 

14

14 

14 

14 

13 

14

14 

14 

14 

14 

13

13 

13 

14 

14 

14

Runoff In 

acre-feet

675 

697 

700

11,000

685 

749 

1,050 

1,460 

1,750 

1,200 

906 

833 

829

11,530

Mill Creek near Mentone, Calif.

 Location.- Water-stage recorder and concrete broad-crested weir, lat. 34°05'10", long.

 n7"06'55", in SE^NWv sec. 17, T. 1 S., R. 2 W., at Bear Valley pipeline crossing, 0.2 

mile upstream from mouth, 1.5 miles northeast of Mentone, and 5 miles southeast of East 

Highlands. Altitude of gage, about 1,780 feet.

Records available.- February 1939 to September 1949.

Average discharge.- 10 years, 3.87 second-feet.

Extremes.- Ho flow during year.

 T939-49: 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.- No flow since Apr. 30, 1948. Figures for calendar year 1948 are as follows:

total second-foot-days, 1.4; maximum daily discharge, 0.2 second-foot; minimum daily,

no flow; mean, 0.004 second-foot; runoff, 2.8 acre-feet. Mill Creek power canals 1, 2,

and 3 divert above station.
56 SANTA ANA RIVER BASIN

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

Location,- Water-stage recorder and Parshall flume, lat, 34°05'10", long. 117°02'25", in 

Mist s~ec. 13, T. 1 S., R. 2 W., in canal just downstream from tailrace of Southern 

California Edison Co.'s power plants 2 and 3, near Redlands-Bear Valley highway, 5-miles 

northeast of Craftonville. Prior to Apr. 7, 1949, records obtained at same site from 

power output ratings.

Records available.- January 1919 to September 1949. 

Average discharge.- 30 years, 21.4 second-feet.

Extremes.t Maximum daily discharge during year, 30 second-feet Apr. 23, 24, 28, 29, May 3; 

 rib flow Feb. 23.

1919-49: Maximum daily discharge, 36 second-feet Nov. 19, 19S3, June 7, 1924; no 

flow at times during 1923, 1937-40, 1943, 1945-47, 1949.

Remarks.- Records good Anr. 7 to Sept, 30. Discharge for period Oct. 1 to Apr. 6 computed 

~"from record of kilowatt output of power plant. Mill Creek power canal 2 diverts from 

Mill Creek in sec. 8, T. 1 S., R. 1 W., power canal 3 diverts in sec. 13, T. 1 S., R. 1 

W., 3 miles above intake for canal 2. The canals serve power plants 2 and 3, which 

discharge into a common tailrace which discharges into power canal 1 just below gaging 

station on that canal,

Cooperation.- Discharge record for period Oct. 1 to Apr. 6, gage-height graph, and 6 discnarge measurements furnished by Southern California Edison Co.

Discharge, in second-feet, water year October 194,8 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.9 

9.6 

9.7 

9.2 

9.8

10.2 

9.8 

9.8 

7.8 

7.4

9.8 

10.2 

10.2 

9.8 

9.9

7.6 

9.8 

18.6 

13.8 

13.2

12.2 

12.1 

12.8 

11.9 

11.1

10.7 

11.1 

11,4 

12.0 

12.6 

12.6

Nov.

12.2 

13.0 

11.9 

11.0 

12.4

12.4 

12.4 

11.5 

12.0 

12.8

12.6 

12.2 

3.1,5 

11.5 

12.4

.12.4 

12.4 

12.2 

12.0 

11.9

11.9 

12.1 

11.9 

11.9 

11.5

9.7 

8.2 

9.2 

9.2 

9.4

Dec,

11.4 

12.7 

12.7 

12.5 

12.1

12.6 

12.5 

12.5 

11.8 

11.6

12,5 

12.5 

11.8 

10.7 

10.4

12.1 

13.0 

12.8 

12.0 

12.1

12.5 

10.2 

6,8 

9.0 

12.0

12.5 

10.6 

6.2 

6.6 

7.8 

8.0

Jan.

12.4 

13.0 

8.6 

9.2 

10.1

10.5 

12.0 

10.3 

10.0 

8.8

10.2 

10.3 

11.0 

10.1 

11.0

10.6 

10.2 

11.2 

11.0 

12.6

11.5 

11.6 

11,3 

11.6 

11,6

11.6 

11.6 

11,4 

9.8 

11.2 

11.2

Feb.

12.4 

11.6 

11.8 

11.6 

12.0

11.8 

11.8 

12.0 

11.6 

11,6

12.4 

12.0 

11.4 

-U.7 

11.7

12.0 

13.2 

13.6 

14.9 

15.3

14.8 

15.2 

0 

13.9

15.4

15.1 

14.5 

13.8

Month

Oeto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1,. T ....................................

enber. ..................................

ter year 1948-49 .......................

Mar.

ia.8

12.8 

13.4 

12,3 

13.4

12.7 

13.0 

11.9 

11.9 

12.4

14.2 

12.8 

13.0 

13.1 

14.0

14,3 

14.3 

15.6 

17.2 

16.2

15.8 

16.2 

15.7 

14.7 

13.9

13,9 

14.5 

17,6 

15.8 

5.8 

14,6

Apr.

14.3 

14.0 

13.8 

13,8 

14.9

14.8 

15.5 

15.5 

17.6 

18.3

19.7 

21 

21 

22 

22

21 

24 

11.8 

9.6 

11.1

12.1 

16.3 

30 

30 

29

?9 

29 

30 

30 

29

Secondfoot-days

336.6 

347.7 

344.5

5,400.8

337.5 

349.1 

428.8 

600.1 

813 

556.4 

410.6 

383.8 

407.0

5,314.3

May

29 

29 

30 

29 

29

29 

28 

28 

27 

27

27 

26 

26 

28 

28

26 

25 

26 

27 

26

25 

25 

24 

24 

24

24 

24 

24 

23 

23 

23

Maximum

18.6 

13.0 

13.0

26

13.0 

15.4 

17.6 

30 

30 

22 

15.8 

14.6 

14.4

30

June

22 

22 

22

21 

21

20 

20 

20 

 19.5 

19.7

19.0 

18.7 

18.7 

18.7 

18.5

18.3 

18.3 

18.0 

18.0

17.8

17.1 

16.9 

16.9 

16.7 

16.7

16.4 

16.4 

16.4 

16.2 

15.5

July

15.8 

15.5 

15.3 

14.9 

14.6

14.4 

14.4 

14,2 

14.0 

13,6

13,6 

13,6 

13.4 

13.2 

13.0

12.8 

12.5 

12.5 

13.0 

12.5

13.0 

12.5 

12.3 

12,3 

12,3

12.5 

11,9 

11.8 

11.9 

11.9 

11.7

Minimum

7.4 

8.2 

6.2

6.2

8.6 

0 

5.8 

9.6 

23 

15.5 

11.7 

10.9 

12.8

0

Aug.

11.7 

11.5 

11.3 

11.3 

11.1

10,9 

11.1 

12.1 

13.4 

13.4

13.4 

13.2 

13.2 

13.2 

13.0

13,0 

12,8 

12,8 

12.5 

12.1

12.1 

12.1 

12.3 

11.9 

11.9

11.7 

12.1 

11,5 

11.9 

13.7 

14.6

Mean

10,9 

11.6 

11.1

14,8

10.9 

12.5 

13.8 

20.0 

26.2 

18.5 

13.3 

12.3 

13.6

14.6

Sept.

14.4 

14.4 

14.3 

14.0 

14.0

14.0 

13.8 

13.8 

13.8 

13.8

13.6 

13.4 

13.4 

13.4 

13.4

13.4 

13.4 

13-4 

12,8 

13.8

13.8 

13.4 

13.4 

13.4 

13.2

13.0 

12.8 

13.2 

13.4 

13.2

Runoff in 

acre-feet

668 

690 

683

10,720

669 

692 

851 

1,190 

1,610 

1,100 

815 

759 

807

10,530
SANTA ANA RIVER BASIN 

Mill Creek power canal 1 near Craftonville, Calif.

5?

Legations Water-stage recorder and weir control, lat. 34 e 05'10", long. H7°02'25", in 

rKt sec. 13, T. 1 S., R. 2 W., 0.2 mile downstream from point of diversion from Mill 

Creek and 5 miles northeast of Craftonville.

Records,available.- January 1919 to September 1949. 

Average, discharge,- 30 years, 2.80 second-feet.

Extremea.- Maximum daily discharge during year, 3.8 second-feet Feb. 27, 28, May 19; no 

I'lbw on many days.

1919-49: Maximum daily discharge, 29 second-feet Apr. 21, 22, 1932, no flow for 

several days of most years.

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

UTscnarge determined by weir formula. This canal diverts from Mill Creek in NEf sec. 

13, T. 1 S., R. 2 W., above station on Mill Creek near Mantone. The combined discharge 

of power canals 2 and 3 enters power canal 1 below station. After passing through 

Mill Creek powerhouse 1, entire flow is used for irrigation and domestic supply.

Discharge, In second--feet, water year October 1948 to September 1949

Day

1 

Z

3 

4 

5

6

^

8 

9 

10

11 

12 

13 

14 

15

IS 

17 

18 

19 

20

21 

£2 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1

.1

.2

.1 

0 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.1

0

0 

O 

0

.1

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

Nov.

0.1 

.1 

.1

.1

.1 

.1 

.1

.1

0 

O

o 

o 

o

0

o

0 

0 

0

0 

0 

0 

0 

0

o 

o

0 

0 

0

Dec.

0

.1 .1

.1

.1

0 

0 

0

0 

0 

0

.1 .1

.1 .1 .1 .1 .1

.1 .1 .1 .1 .1

.1 .1.1 .1

.2 

.4

Jan.

0.4 

.2 

.1

.1

.1 

.1 

.1

.1

.1 

' .1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.9

.4 

.5 

.5 

.3 

.2

.2

.1 

.1 

.1

!i

Peb.

0.1 

.1 

.2

.2

.2 

.2 

.2

.1

.3

.5 

.3 

.2 

.2

.1 

.2 

.2 

.2 

.2

.2 

.3 

.5 

2.5 

2.5

2.6 

3.8 

3.8

Month

Octo 

Hove 

Deee

Ca

Janu 

Pebr 

Marc 

Apr!

XAV

June 

July 

Augu 

Sept

Wa

lender year 1946

ter year 1948-49 .......................

Mar.

3.4 

3.3 

3.0

3.4

s:i

3.0 

2.8 

2.8

3.0 

2.8 

2.6 

2.5 

2.5

2.5 

2.5 

2.6 

3.0 

3.1

2.8 

2.8 

3.3 

3.1 

2.8

2.6 

2.6 

2.8 

2.6 

2.3 

2.0

Apr.

3.3 

3.3 

3.0

2.6

2.3 

2.3 

2.5 

2.5

2.3 

2.2 

2.1 

2.0

e.o

2.0 

2.0 

0 

1.0 

1.5

2.0 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

. 2.0 

0 

1.0

Second* 

foot -days

2.S 

1.6 

2.8

87.9

5.8 

20.3 

88.1 

61.0 

50.3 

44.7 

42.4 

35.0 

6.1

360.3

May

1.6 1.1 1.1

1.2

1 2

0 

0 

.7 

.6

0 

.7 

1.0

1.5 

2.1

2.1 

2.2 

2.3 

3.8 

3.3

2.6 

2.2 

2.1 

2.1 

1.9

1.9 

2.1 

2.1 

2.1 

2.1 

2.1

Maximum

0.2 

.1

.4

1.4

.9 

3.8 

3.4 

3.3 

3.8 

1.8 

1.7 

1.4 

.5

3.8

June

1.7 

1.8 

1.8

1.7

1.5 

1.5 

1.4 

1.4

1.4 

1.4 

1.3 

1.3 

1.3

1.3 

1.5 

1.5 

1.4 

1.4

1.4 

1.3

1.3 

1.4

1.5

1.5 

1.7 

1.7 

1.5 

1.4

July

1.3 

1.3 

1.3

1.3

1.3

Minimum

O 

0

0

0

.1 

.1 

2.0 

O 

0 

1.3 

1.2 

.5

a

0

1.4 

1.4 

1.4 

1.4

1.4 

1.5 

1.5 

1.5 

1.4

1.4 

1.3 

1.3 

1.3 

1.3

1.4 

1.4 

1.4 

1.4 

1.3

1.3 

1.4 

1.7 

1.3 

1.3 

1.2

AUg.

1,2 

1.0 

1.0 

.9

1.0 

1.0

1.0 

1.3 

1.3 

1.4

1.4 

1.3 

1.3 

1.2 

1.3

1.2 

1.2 

1.2 

1.0 

1.0

1.0 

1.0 

1.0 

1.2 

1.3

1.3 

1.2 

1.2 

1.2 

.9 

.5

Mean

0.09 

.03 

.09

.24

.19 

.72 

2.84 

2.03 

1.62 

1.49 

1.37 

1.13 

.20

.99

aept.

0.5 

.4 

,2

.2

.2 

.1 

.2 

.2

.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

.1 

.2 

.2 

.2 

.2

Runoff in 

acre-feet

5.6 

2.0 

5.6

173

12 

40 

175 

121

loo

89 

84 

69 

12

715

Note.- No gage-height record Apr. 12 to May 5; discharge computed on basis of records of combined 

flow of Mill Creek and canal near Craftonville and combined flow of Santa Ana River and canal near 

Mentone.
58 SANTA ANA RIVER BASIN

Plunge Creek near East Highlands, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34"07'10", long. 117°08 I 30", 

TnTJEfNE^ sec. 1, T. 1S..R. 3W.,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 ar.ea.- 16.9 square miles.

Records available.- January 1919 to September 1949.

Average discharge.- 30 years, 6.42 second-feet.

Extremes.- Maximum discharge during year, 69 second-feet Jan. 20 (gage height, 1.14 feet); 

no now during several months.

1919-49: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area method; 

no flow for long periods each year.

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

Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

 6 

7 

8 

9 

10

11 

12

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

o

0

.8 

.07

Nov.

eO.Ol

Dec.

, eO.Ol

.1 

.8 

.1 

.04

.04 

2.6 

2.1

.9 

.1

.1

Jan.

0.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.07 

.1

.2 

.2 

.4 

.6 

.4

.7 

.9 

.9 

1.5 

36

19 

16 

19 

10 

7.9

6.2 

4.9 

4.0 

3.6 

3.4 

3.3

Feb.

3.3 

3.4 

3.9 

3.7 

3.7

3.6

4.4 

5.4 

4.2 

4.0

&. 7

12 

7.5 

5.9

5.1

4.4 

4.7 

5.3 

5.9 

6.5

5.9 

5.9

6.5 

11 

21

12 

22 

24

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

19 

13 

11 

10 

13

8.9 

7.5 

6.2 

5.6 

5.3

7.5 

7.1 

5.9 

5.3 

5.3

5.3 

5.6 

5.9 

a6.5 

a7.0

a6.0 

a6.0 

a6.5 

a6.0 

a6.0

a6.0 

a6.0 

a6.S 

6.2 

6.2 

8.4

Apr.

7.1 

6.2 

5.6 

5.6 

6.8

6.8 

7.5 

8.4 

12 

13

15 

13 

11 

10 

9.4

5.6 

4.7 

3.9 

3.7 

3.3

3.3 

2.2 

1.6 

.6 

.3

.1 

.04 

.02 

.5 

1.4

Secondfoot-days

0.87 

.30 

7.09

377.23

139.59 

210.9 

230.7 

168.66 

11.66 

.08 

0 

0 

0

769.85

May

0.5 

.2 

.4 

.2 

.04

e.Ol

2.5 

3.0

1.0 

.3 

.1 

1.6

1.6

.04

1-

Maximum

0.8 

2.6

60

36 

24 

19 

15 

3.0

O 

0 

0

36

June

 eO.Ol

0 

0

0

o

0 

0 

0

o 

o

0

0 

0

0 

0

o

0 

0

0 

0

0 

0 

0

July

Minimum

O

0

.04 

3.3 

5.3 

.02

0 

O 

0 

0

0

Aug.

Mean

0.028 

.010 

.23

1.03

4.50 

7.53 

7.44 

5.62 

.38 

.003 

0 

O 

0

2.11

Sept.

Runoff In 

acre-feet

1.7 

.6 

14

748

277 

418 

458 

335 

23 

.2 

0 

0 

0

1,530

Peak discharge (base, 130 sec. -ft.).- No peak above base.

head Springs and combined flow of City Creek and canal near Highland. 

e Deily discharge less than 0.1 second-foot.
SANTA ANA RIVER BASIN 59

San Timoteo Creek near Redlands, Calif.

Location.- Water-stage recorder and concrete control, lat. 34°01'5S", long. 117°12*30", 

In NW£NW£ sec. 4, T. 2 S. , R. 3 W., 2 miles southwest of Redlands. Altitude of gage, 

about 1,260 feet.

Drainage area.- 123 square miles.

Records available.- October 1926 to September 1949.

Average discharge.- 23 years, 1.78 se'cond-feet.

Extremes.- Maximum discharge during year, 194 second-feet Mar. 22 (gage height, 1.92 feet); 

no flow during most of year.

192&--49: Maximum discharge, 7,460 second-feet Mar, 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 seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 7'

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0

0

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

.2 

0

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

a. 5

0

.1

0 

0 

0 

0

0

.1

0 

.3 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0

o

0 

0

0 

.2 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

.7 

1.4

.2 

1.2 

0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 50 sec. -ft.).- Mar.

Mar.

0 

0 

0 

0 

2.1

0 

0 

0 

0 

0

0 

0

0 

0 

0

0

0 

0 

0 

0

0 

13 

.1

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

.2

43.0

1.0 

3.8 

15.2 

0 

0 

0 

0 

0 

0

20.2

May

Maximum

0 

0

.2

31

.5 

1.4 

13

0 

0 

0 

0 

0 

0

13

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0

o 

o 

0 

0

0

Aug.

Mean

0 

0 

.006

.12

.03 

.14 

.49 

0

0 

0 

0 

0 

0

.06

Sept.

Runoff In 

acre-feet

0 

0 

.4

36

2.0 

7.5 

30 

0 

0 

0 

0 

0 

0

40

22 (7:40 p.m.) 194 sec. -ft.

Note.- Ho gage-height record Dec. 29 to Jan. 14, Mar. 5 to Apr. 19, July 29 to Aug. 16; discharge 

computed on basis of weather records and fragmentary gage-height record for Santa Ana River at E 

Street, near San Bernardlno.
60 SANTA ANA RIVER BASIN

Little San Gorgonio Creek near Beaumont, Calif.

Location.^ Water-stage recorder, lat. 34°01'30", long. 116°S7'OQ", in NE$ sec, 2, T. 3 S., 

K. I vi., 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 1949,

Extremes.- Maximum discharge during year not determined; no flow during several months.

Remarks.- Records good except those for Oct. 1 to Mar, IS which are poor. Several small 

diversions above station.

Discharge, in second-feet, water year October 1948 to September- 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

83 

24 

25

26 

87 

28 

29 

30 

31

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Oct.

0 

Q 

0 

0 

0

0

0 

0

o 

p

0 

0 

0 

Q 

0

0 

0

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0.05

Nov.

0.1

.05 

.02

.01

0 

0 

0 

0

0

0

o

0 

0

Dec,

0

0

.01

Jan.

0.01

.5

.5 

.3 

.2 

.2 

.2

.1

.1 

.1 

,1 

.1 

.1

Feb.

0.1 

.1

,1 

.1 

.1

.1 

.1 

.2 

.2 

.2

.2 

.3

\Z

.1

.5 

.5 

.8 

1.0 

3.0

2.0 

1.5 

2.0 

3.0 

5.0

3,5 

2.5 

1.5

Month

mber. ...................................

lendar year 

ary

h. ........... ...........................

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

St.,. ...................................

ember, ..................................

ter year 1948-49 .......................

Mar.

0.8 

.6

.5 

,5

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.5 

.5 

.5

.5 

.5 

.5 

.5

,5

.4 

.4 

.5 

.6 

.6

.6 

.6 

.9

.7 

.7

1.2

Apr.

1.0 

.9

,7

,5 

.3

.3 

.3 

.2 

.2 

.2

!2 

.2 

.2 

.2

.1 

,2 

.2 

.2 

.2

.2 

.2

,1 

.1

.1

.1 

,1 

.1

.1 

.1

Secondfoot -days

O.OS 

.35 

.29

-

2.69 

29.1 

17.0 

7.7 

4.24 

2.19 

.64 

.31 

0

64.36

May

O.I 

.2 

,2 

.2

,1

,08 

,08 

.08 

.1 

,1

,1 

.1

a

.2 

.2 

,8 

.2 

.2

.2 

.2 

.1 

,1

,1

.1 

,1 

,1 

.1 

.1 

.1

Maximum

-

1.2 

1.0 

,2

!os

0

-

June

0,1

.1 

.1 

.1 

,1

.1 

.08 

.08 

.08 

.08

.08 

.08 

.08 

.08 

.06

,06 

,06 

.08 

.08 

.06

,06 

,06 

.05 

.05

.05

,05 

.06 

,06 

,06 

,05

Minimum

:

-

0,4 

,1

,0 

0

0

July

0,05 

.05 

.03 

,05 

,05

.05 

,03 

,03

.02 

.01

Aug.

0.01

Mean

0.002 

.012 

,009

-

.09 

1.04 

,55 

.26 

3 .14 

5 .07 

.021 

.010 

0

.177

Sept.

Runoff in 

acre-feet

0.1 

.7

,6

-

5.3 

58 

34 

15 

8.4 

4.3 

1.3 

.6 

0

128

Note.- No gage-height record Oct. 1 to Mar. 15; discharge computed on basis of 10 discharge measurements, 9 observations of no flow, field engineer's notes, and weather reoords.
SANTA ANA RIVER BASIN 61

Warm Creek near Colton, Calif.

Location.- Wate'r-stage recorder, lat. 34 e 04'OQ", long. 117°18'30", in San Bernardino

 "Brant',' 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 September4 1949. 

'Average"disch'argeT- 29 years, 53.4 second-feet. Average combined discharge of Warm Creek

 arid Me'e'ks & Saley Canal, 29 years, 64.6 second-feet.

Extremes.- Maximum discharge during year, 421 second-feet Feb. 27; maximum gage height,

" O'l feet Jan. 13; minimum daily discharge, 12 second-feet on several days In August 

and September. . . , . . ,, 

1920-49: 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, 1986. Maximum discharge including west channel of Lytle Creek, 35,000 second-feet Mar. 2, 1938.

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

 S'ee'p. 74 for records of Meeks & Daley Canal near Colton, which diverts above station, 

and p. 62 for records of combined flow of canal and Warm Creek. City of San Bernardino sewage disposal plant'discharged 7,620 acre-feet into Warm Creek above station 

during year. In seasons of high water table, there is flow in a depression paralleling Warm Creek about 500 feet east of station; based on 19 discharge measurements 

(see p. 453), the amount of runoff during year is estimated to have been 360 acrefeet. 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 Ln 

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, vater year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

d

9 

10

11 

12 

13 

14 

IS

16

17 

18id

20

31 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

26 

26 

2S 

26 

27

28 

29 

27 

27 

26

27 

27 

27 

27 

27

27 

36 

52 

36

35

34 

34 

32 

31 

30

30 

31 

31 

31 

70 

34

Nov.

33 

32 

33 

30 

30

29 

29 

30 

30 

32

33

33 

33 

31

31

31 

31 

30 

30 

30

30 

31 

32 

31 

31

31 

31 

31 

31 

32

Dec.

32 

30 

40 

34 

31

31 

34 

34 

33 

32

27 

26 

26 

26 

26

26 

56 

42 

38 

37

38 

47 

47

a40

a38

a66 

a!20 

51 

51 

50 

50

Jan.

50 

51 

54 

48 

46

44 

44 

44 

61 

45

68 

67 

98 

72 

54

51 

52 

54 

67

141

80 

88 

87 

73 

69

65 

63 

62 

62 

59 

61

Month

Goto 

Nov« 

Dec*

Oa

Janu 

Febr 

Marc

&V1

June 

July 

Augu 

Sept

Wa

mb»r .........................

lender year 1948 ... .

uary . .

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

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

 UMr...... .....;............

t»r year 1948-49 ............

Feb.

61 

62 

82 

62 

58

52 

91 

71 

61 

62

80 

80 

65 

63

61

61 

61 

61 

61 

62

61 

62 

62 

f75 

63

102 

169 

96

Seoondfoot-days

978 

932 

1,259

15,761

1,980 

2,027 

1,988 

1,325 

1,226 

774 

656 

489 

433

14,067

Peak discharge (base, 290 sec. -ft.].- Feb.

i Discharge from sewage plant of city of Sa

Mar.

82 

73 

70 

73 

78

71 

77 

69 

65 

64

69 

62 

60 

62 

60

6O 

60 

60 

67 

70

65 

57 

66 

60 

53

54 

53 

59 

58 

55 

56

Apr.

55 

52 

47 

43 

50

51 

49 

48 

45 

44

44 

45 

44 

44 

44

45 

44 

46 

45 

43

39 

39 

40 

39

41

41 

41 

40 

39 

36

Maximum

70 

33 

120

220

141 

169 

82 

55 

67 

33 

25 

22 

17

169

May

37 

37 

37 

36

35

36 

34 

f33 

f33 

f32

f32 

f32 

f32 

32 

36

36 

45 

59 

67 

58

57 

54 

52 

48 

f35

f34 

f34 

f34 

f32 

f32 

f33

June

f33 

f31 

f27 

27 

27

28 

29 

£9 

28 

30

23

22 

25 

25 

25

25 

26 

26 

25 

25

25 

25 

24 

23 

22

20 

24 

25 

£5 

25

Minimua Uean

25 31.5 

29 31 . 1 

26 40.6

22 43.1

44 63.9 

52 72.4 

53 64.1 

36 44.2 

32 39.5 

20 25.8 

14 El. 2 

12 15.8 

12 14.4

12 38. S

July

24 

22 

19 

22 

25

24 

23 

23 

22 

19

23 

23 

23 

21 

22

22 

20 

25 

20 

20

19 

19 

18 

14 

20

19 

20 

20 

23 

22 

22

Aug.

22 

ZZ

19 

19

19

.17 

14 

16 

17 

17

17 

14 

IE 

12 

17

17 

16 

16 

16 

14

12 

14 

16 

16 

16

14 

14 

12 

14 

14 

14

Runoff in 

acre-feet

1,940 

1,850 

2,500

31,270

3,930 

4,060 

3,940 

2,630 

2,430 

1,540 

1,300 

970 

659

27,910

a.Pt.

14 

14 

14 

12 

12

12 

12 

12 

12 

12

12 

14 

16 

1.6 

16

17 

16 

14 

17 

17

17 

17 

14 

14 

14

16 

16 

16 

14 

14

Inflow in 

acre-feet t

621 

576 

614

7,070

687 

582 

620 

607 

637 

642 

643 

691 

704

7,620

27 (1:45 a.m.) 421 sec.J-ft. 

ji Bemardlho; included in runoff figures given in preceding columns. Records furnished by that city.

a Ho gage-height record; discharge computed on basis of records of San Bernardino County Flood 

Control District's station at Mill Street.

f Computed on basis of partly estimated gage-height record.
62 SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of Warm Creek and Meeks & Daley Canal near Colton,tCallf., 

water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

47 

45 

44 

46 

47

48 

48 

46 

46

45

46 

46 

46 

46 

46

46 

55 

71 

55 

54

53 

53 

51 

50 

49

50

51 

51 

50 

89 

53

Nov.

52 

50 

51 

49 

49

48 

48 

49 

49 

51

52 

52 

52 

50

50

50 

50 

49 

50 

50

49 

51 

52 

50 

50

50 

50 

50 

50 

51

Dec.

51 

49 

59 

52

50

51 

54 

53 

52 

50

45 

45 

46 

45 

45

45 

71 

47 

44 

45

44

53 

53 

46 

44

72 

126 

54 

54 

53 

53

Jan.

53 

53 

55 

55 

56

54 

54 

54 

74 

62

79 

74 

106 

80 

61

58 

56 

56 

70 

144

83 

91 

90 

76 

72

68 

66 

64 

64 

61 

63

Feb.

63 

65 

85 

65 

61

55 

94 

74 

64 

64

81 

82 

68 

66 

64

64 

63 

63 

63 

64

63 

64 

64 

78 

86

105 

172 

98

Month

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

84 

75 

72 

75 

80

73 

79 

71 

67 

66

73 

67 

64 

66 

65

65 

65 

65

73 

76

70 

62 

71 

66 

64

63 

61 

67 

66 

62 

62

Apr.

62 

64 

60 

62 

69

70 

68 

67 

64 

63

63 

64 

63 

61 

64

65 

64 

65 

64 

62

58 

58 

59 

58

60

60 

60 

59 

58 

57

Secondfoot -days

1,573 

1,504 

1,651

21,579

2,152 ' 

2,098 

2,135 

1,871 

1,747 

1,350 

1,247 

1,085 

1,001

19,414

May

56 

56 

56 

56 

54

55

54 

51 

52

51

51 

51

51 

52 

57

55 

63 

68 

75 

66

65 

62 

60 

58 

54

54 

54 

54 

51 

51 

53

Maximum

89 

52 

126

233

144 

172 

84 

70 

75 

53 

44 

42 

36

172

June

53 

51 

46 

47 

47

47 

49 

49 

47 

49

42 

41 

44 

44 

44

44 

45 

45 

44 

44

44 

44

43 

42

41

39 

43 

44 

44 

44

July

43 

41 

38

41 

44

43 

42 

42 

41 

38

42 

42 

42 

40

41

41 

39 

42 

39 

39

38 

38 

37 

34 

40

38 

39 

39 

42

41 

41

Minimum

44 

48

44

42

53 

55 

61 

57 

51 

39 

34 

31 

29

29

Aug.

42 

41 

38 

38 

39

36 

33 

35 

36 

36

36 

33 

31 

31 

37

36 

36 

35 

35 

33

31 

33 

35 

35 

36

34 

34 

31 

33 

33 

33

Mean

50.7 

50.1 

53.3

59.0

69.4 

74.9 

68.9 

62.4 

56.4 

45.0 

40.2 

35.0 

33.4

53.2

Sept.

33 

33 

34 

32 

29

31 

31 

31 

31 

31

31 

33 

35 

35 

35

36 

35 

33 

36 

36

36 

36 

33 

33

31

35 

35 

35 

33 

33

Runoff In 

aore-feet

3,120 

2,980 

3,270

42 , 800

4,270 

4,160 

4,230 

3,710 

3,470 

2,680 

2,470 

2,150 

1,990

38,510
SANTA ANA RIVER BASIN 63

Strawberry Creek near Arrowhead Springs, Calif.

Location.- Water-stage recorder and braod-crested weir, lat. 34°10 I 45", long. 117°15<55", 

TrTSEv sec. 11, T. 1 N., R. 4 W., upstream from Del Rosa Water Co.is lower diversion 

dam, 0.5 mile south of Arrowhead Springs. Altitude o f gage, about 1,650 feet.

Drainage area.- 8.6 square miles.

Records available.- December 1919 to September 1949.

Average discharge.- 29 years (1920-49),4.90 second-feet.

g&trenea.- Maximum discharge during year, 32 second-feet Feb. 27 (gage height, 2.58 feet); 

minimum daily, 0.4.second-foot on many days in September.

1919-49: Maximum disejiarge, 3,360 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; practically no flow at times during 1929, 1931-35.

Remarks.- Records good. One small diversion above station for domestic supply.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

h

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6 

.6 

.6 

.6.

.6 

.6 

.6 

.7

.7 

.7 

.8 

.7 

.7

.6

1.0 

.7 

.8

.8

.7 

.7 

.7 

.6

.6 

.6 

.6 

.8 

1.0 

.9

Nov.

0.8 

.8 

.8

.6

.6 

.6 

.6 

.6

.8 

.6 

.6 

.8 .9'

.9

.8 

.8 

.8

.8 

.7 

.6 

.6 

.8

.8 

.8 

.8 

.8 

.8

Dec.

1.0 

.8 

1.0

1.5

1.2 

1.2 

1.1 

1.2

1.2 

1.2 

1.2 

1.2 

1.3

1.3

2.3 

1.8 

1.6

1.4 

2.6 

2.8 

1.9 

1.8

2.1 

6.3 

2.9 

2.4

2.1 

1.9

Jan,

1.6 

1.5 

1.4

1.5

1.5 

1.5 

2.3 

2.1

2.3 

2.5 

3.5 

3.2 

3.0

2.5

2.3 

2.6 

21

11 

10 

9.3 

6.0 

5.2

4.5 

4.5 

3. -8 

3.6 

3.5 

3.4

Feb.

3.4

3.6 

4.3

4.3

6.0 

6.8 

5.5 

5.7

7.5 

9.1 

6.0 

5.0 

4.3

4.3

4.8

5.2 

4.8

4.3 

4.2 

4.3 

7.0

11

8.8 

23 

17

Month

Oeto 

Nove 

Dece

Ca

Janu. 

Febn 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

12 

9.6 

8.2

7.8

6.4 

6.0 

5.7 

5.2

6.0 

5.5 

5.0 

4.8 

4.7

4.5

4.3 

5.2

5.5

4.8 

4.7 

5.4 

5.4 

5.4

5.2 

4.8 

6.6 

5.9 

5.4 

5.5

Apr.

5.4 

5.4 

5.0 

4.5 

4.2

4.0 

3.8 

3.6 

3.4

f3.1 

f2.8 

2.8 

3.0 

2.9

2.9 

2 9

2.9 

3.2 

2.8

2.1 

2.2 

2.4 

2.4 

2.3

2.5 

2.5 

2.5 

2.6 

2.5

Secondfoot-days

21.6 

22.0 

56.6

629.3

126.2 

183.5 

184.0 

96.8 

96.8 

60.5 

28.2 

20.3 

13.4

909.9

May

2.4 

2.3 

2.5 

2.4 

1.8

2.0 

1.9 

1.8 

2.0

2.0 

1.9 

2.1 

3.5 

4.2

3.4

5,5 

7.2 

6.4

4.8 

3.9 

3.2 

3.0 

2.9

2.9 

2.8 

3.1 

3.1 

3.0 

3.0

Maximum

1.0 

.9 

6.3

34

21 

23 

12 

5.4 

7.2 

2.8 

1.2 

.9 

.6

23

June

2.8 

2.5 

2.4 

2.4 

2.4

2.1 

2.3 

2.0 

1.9

2.0 

2.1 

2.0 

1.8 

1.8

1.8

2.1 

2.1 

1.7

1.7 

1.5 

1.7 

1.5 

1.7

2.3 

2.2 

2.3

1.9 

1.4

July

1.2 

1.1 

1.2 

1.0 

1.2

1.1 

1.1 

1.1 

1.1

1.1 

1.0 

1.1 

1.0 

1.0

.9

.8 

.7 

.8

.8 

.8 

.6 

.8 

.8

.7 

.6 

.6 

.6 

.6 

.8

Minimum

0.6 

.6 

.8

.3

1.2 

3.4 

4.3 

2.1 

1.8 

1.4 

.6 

.5 

.4

.4

Aug.

0 6 

6 

6 

6 

6

6 

7 

6 

8 

9

8 

8 

6 

7 

8

7 

fl

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

.5 

.5 

.6 

.6 

.6 

.6

Mean

0.70 

.73 

1.83

1.72

4.07 

6.55 

5.94 

3.23 

3.12 

2.02 

.91 

.65 

.45

2.49

Sept.

0.6 

.5 

.5 

.6 

.6

.6 

.5 

.4 

.4

.4

.4 

.4 

.4 

.4 

.5

.4 

.4

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.5 

.5

Runoff In 

acre-feet

43 

44

112

1,250

250 

364 

365 

192 

192 

120 

56 

40 

27

1,800

Peak discharge (base. 40 sec. -ft.).- No peak above base.
64 SANTA ANA RIVER BASIN

Waterman Canyon Creek near Arrowhead Springs, Calif.

Water-stage recorder and broad-crested weir, lat. 34°11'35", long. 117°16'35",

sec, E, T. 1 N. , R. 4 W. , 1 mile northwest of Arrowhead Springs. Altitude of 

about 2,125 feet.

Location 

in a 

gage

Drainage area.- 4.55 square miles.

Records available.- November 1911 to October 1914, December 1919 to September 1949.

Average discharge . - 31 years (1912-14, 1920-49), 2.95 second-feet.

Extremes . - Maximum discharge during year, 19 second-feet Feb. 26 (gage height, 2.55 feet); 

 r miranium daily discharge, 0.1 second-foot on many days in October, August, and September.

1920-49: Maximum discharge, 2,350 second-feet Mar. 8, 1938, based on rainfallrunoff studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, 1934,

1948.

Remarks.- Records good except those for Dec. 24-29, which are fair. One small diversion 

for "aomestic use above station.

Discharge, In second-feet, water year October 1948 tp September 1949

Day

1 

z

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 

51

Oct.

0.2 

.2

.1 

.1 

.2

.1 

,1 

.1 

.1 

.1

.2

.2 

.3 

.3 

,2

. 2 

.2 

,5 

.3

.3

.2 

.2 

.2 

.2 

.2

.'3 

,4 

.4 

.6

.5

Nov,

0.4 

.4 

.5 

.4

.3

.3 

.3 

.3 

.3 

.3

,3 

.3 

.3 

.3 

.3

.3 

.4 

.3 

,4 

.4

.4 

.4 

.4 

.5 

.5

.5 

.4

.4 

.4

.4

Dec.

0.4

.5

i!o

.9

.8 

.8 

.6

.8

.8 

1.7 

1.0 

.8 

.8

.8 

1.5 

1.3 

fl.O 

al,o

a2.0 

a2.5 

al.S 

fl.l 

1.0 

.8 .

Jan.

0.8 

.8 

.8 

.8 

.8

.8 

.3 

.8 

1.2 

1.2

1,2 

1.2 

1,4 

1.4 

1.4

1.3 

1.2 

1.2 

1.6 

8.3

3.9

5.3 

4.2 

3.2 

2.9

2.6 

2,6 

2.5 

2. I z'.'z

Feb.

2.2 

2.4 

2.6 

2.6 

2,6

2.5 

3.4 

3.7 

3.4 

3.4

4.7 

5.7 

4.7 

4,0 

3.7

3.7 

3.9 

4.2 

4.5 

4,4

4.2 

4.2 

4,4 

1:?, 

7.6

7.2 

9.2

7,6

Month .

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Uftu

June 

July 

Augu 

Sept

Wa

Bber, ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

6.7 

6.3 

S.9 

5.9 

5.5

4.7 

4,4 

4.1 

4,0 

3.9

5.0 

4,1 

3.9 

.5.8 

3.7

3.5 

3.4 

3.2 

3.7 

5,5

3.1 

3.2 

3.5 

3,2 

2.9

2.8 

2.7 

3.7 

3.0 

2.8 

3,1

Apr.

2.8 

2.8 

2.7 

2.6

2.6

2.6 

2.6 

2,6 

2.4

2.1 

2.1 

2.1 

2.2 

2.2

2.0

2.0 

2.1 

2.1 

1.9

1,7 

1.7

1.6 

1.6 

1.7

1.7 

1.7 

1,7 

1.7

1,6

Secondfoot-days

7.4 

11.1 

30.6

355.57

63.1 

123.9 

123.2 

63.4 

63.8 

40.1 

18,7 

8.0 

3.9

557.2

May

1.5 

1.5 

1.7 

3.7 

1.5

1.4 

1,4 

1.4 

1.5 

1.5

1.5 

1.4 

1.5 

2.4 

3.2

2.3 

3.2

3.7 

3.9

3,2

2,8 

2.5 

2,2 

2.0 

1.9

1.9 

1.8

1.9 

1.8 

1.8 

1.8

Maximum

0.6 

.5 

2.5

17

8.3 

9.2 

6.7 

2.8 

3.9 

1.7 

1.0 

.5 

.2

9.2

June

1.7 

l.S 

1.4 

1.4 

1.5

1.4 

] .4 

1.5 

1.5 

1.4

1.4 

1.4

1.4 

1.4

1.3

1.3 1.3' 

1.4 

1.3 

1.2

1.1 

1.0 

. 1.0 

1.1 

1.2

1.4 

1.4 

1.4 

1.3 

1.1

July

1.0 

.8 

.8 

.8

.9

.9

.8 

.8

,8

.7

.8 

.8 

.7 

.6 

.6

.5 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4 

.3

Minimum

0,1 

.3 

.4

0

,8

2,2 

2.7 

1.6 

1.4 

1.0 

.3 

.1 

,1

.1

Aug.

0.3 

.3 

.2 

,2 

.2

.2

.2 

.2

.4 

.4

.5 

.4 

.4 

.4 

.4

.4 

.3 

.3

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2

.1 

.2 

.1

.1

Mean

0.24 

.37 

.99

.972

2.04 

4.42

3.97 

2.11 

2.06 

1.34 

.60 

.26 

.13

1.53

S«pt.

0.1.1 .1,1 .1

.1

.2 

.1 

.1 

.1

,1 

.2

.1 

.2

.2

.2 

.2 

.1 

.1 

,2

.1 

.1 

.1 

.1

.r

.2 

,2 

.2 

.1 

.1

Runoff in 

scre-fset

15 

22 

61

70S

125 

246 

244 

126 

127 

80 

37 

16 

7,7

1,110

Peak discharge (base, 35 seo.-ft.).- Mo peak above base.

recorded ra^ge In stage at^d records for 

Strawberry Creek near Arrowhead Springs.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 65

City Creek near Highland, Calif.

Location.- Water-stage recorder, xat, 34°08'35", long. 117 C 11'25", in SW^NWi sec. 27, T, 

I N . , H . 3 W., 1.5 mileD northeast of Highland. Altitude of gage, about 1,550 feet.

Drainage area.- 19.8 square miles.

Records available.- October 1919 to September 1949.

Average discharge.- 30 years, 8.85 second-feet. Average combined discharge of City Creek 

and City Creek Water Co.'s canal, 35 years (1924-49), 10.6 second-feet.

Extremes..- Maximum discharge during year, -100 second-feet Jan. 20 (gage height. 2.43 feet); 

minimum daily, less than 0.1 second-foot during several periods.

1919-49: Maximum discharge, 6,900" second-feet Mar. 2, 1938, by slope-area method; 

no flow for several months in many years.

1934-49: 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; for records of 

City Creek Water Co.'s canal, see page 67.

Discharge, In second-feet, water year October 1948 to September 1949

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.

eO.oi

e.02

.4

.4

e.04

1.5

1.4

Nov.

0.7 

.1 

.1 

.1 

.2

.2 

.2 

.3 

.3 

.3

.4 

.5 

.1 

.1 

.1

.1 

.1 

.2 

.3 

.2

.2

.1 

.1 

.1 

.1

,1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

1.1 

3.1 

.4

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2

.2 '.4

.4 

3.3 

1,6 

.1 

.1

.1 

2.8 

7.9 

1.5 

.7

.1 

17 

7.3 

5.7 

5.1 

4.8

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Via

Jan.

4.5 

5.4 

4.5 

2.1 

.2

.1 

.1 

.1 

.4 

.2

.3

1.7 

7.3 

6.9 

5.1

4.8 

4.2 

4.2 

5.1 

54

24 

19 

19 

11 

8,9

7.7 

7.3 

6.9 

6.5 

6.1 

6.1

Feb.

5.7 

6.5 

7.3 

6.5 

5.7

6.1 

8.5 

10

. 8.1 

7.3

9.1 

18 

11 

7.7 

5.4

5.7 

7.7 

10 

14 

14

12 

14 

13 

18 

35

21 

29 

24

lendar year 1948

ter year 1948- 49 .......................

Mar.

19 

16 

14 

14 

17

15 

14 

12 

11 

11

13 

12

11 

11 

11

11 

11 

11 

12is

12 

9.4 

15 

14 

12

12 

12 

17 

15 

12 

11

Apr.

9.8 

8.9 

8.9 

8.5 

8.5

8.5 

8.1 

7.7 

6.9 

6.1

6.1 

4.5 

3.7 

3.7 

3.7

2.7 

1.9 

1.9 

1.7 

1.5

1.2 

1.0

1.0

1.0 

1.0

.8 

.5 

.4 

.4 

.4

Secondfoot -days

4.33 

5.7 

65.7

613.62

233.7 

340.3 

405.4 

121.0 

51.7 

.70 

.31 

.31 

1.23

1,230.38

Peak discharge (base, 150 sec. -ft.).- No peak above bs

e t>aily discharge less than 0.1 sec. -ft.

May

0.5 

.4 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.3

.3

.2 

.2. 

1.0 

2.9

1.7 

1.2 

2.9 

9.2

8.5

5.1 

3.4 

2.5 

2.0 

1.5

1.5 

1.2 

 1.2 

1.2

.7 

.1

Maximum

1.5 

.7 

17

27

54 

35 

19 

9,8 

9.2

54

ise.

June

- eO.04 

e.02 

e.Ol

Minimum

0.

-

5. 

9.

_

July

eO.Ol

Aug.

eO.Ol

Mean

0.14 

1 .19 

1 2.12

1.68

1 7.54 

4 12.2 

4 13.1 

4 4.03 

1 1.67 

.023 

.010 

.010 

.041

3.37

Sept,

 eO.Ol

e.OS

e.oa

j, e.04

Runoff In 

acre-feet

8.6 

11 

130

1,220 -

464 

675 

804 

240 

103 

1.4 

.6 

.6 

2.4

2,440
66 SANTA ANA RIVER BASJN

Combined discharge, In second-feet, of City Creek and canal near Highland, 

water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

£9 

30 

31

Oct.

0.2 

.3 

.2 

.2

.3

.3 

.3 

.3 

.3 

.3

.3 

.4 

.5

.7 

.8

,7 

.7 

1.2 

1.6

1.1

.8 

.6 

.6

.6 

.6

.6 

.8 

1.1 

1.4 

1.9 

1.4

Nov.

0.8 

1.2 

1.5 

1.4 

1.1

1.1 

1.1 

1.1 

1.2

1.3

1.4 

1.3 

1.1 

1.1 

1-1

1.2 

1.3 

1.3 

1.5 

1.5

1.5 

1.4 

1.5 

1.5 

1.6

1.6 

1.5 

1.5 

1.6 

1.5

Dac.

1.6

1.6 

2.3 

4.7 

2.3

2.2 

2.2 

2.1 

2.1 

2.1

2.1 

2.1 

2.1

2.1 

2.4

2.4 

4.8 

3.7 

2.7 

2.5

2.5 

4.8 

8.6 

3.2 

2.5

2.8 

19 

7.4 

5.8 

5.2 

4.9

Jan.

4.6 

5.5 

4.6 

3.5 

3.5

3.3 

3.2 

3.1 

3.6 

3.5

3.6 

4.0 

7.4 

6.9 

5.1

4.8 

4.2 

4.2 

 5.1 

54

24 

19

19 

11 

9.4

8.2 

7.8 

7.4 

7.0 

6.6 

6,6

Feb.

6.2 

7.0 

8.0 

7.1 

6.2

6.5 

8.6 

10 

8.5 

7.9

11 

18 

11 

9.0 

7.6

7.5 

9.0 

11 

14 

14

12 

14 

15 

20 

35

22 

31 

26

Month

Octo 

Hove 

Decs

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1946

St......................................

ter year 1948-49 .......................

Mar.

21 

18 

16 

16 

18

15 

14 

12 

11 

11

13 

12 

11 

11 

11

11 

11 

11 

13 

18

14 

13 

16 

14

12

12 

12 

17 

15 

14 

14

Apr.

13 

12 

12 

12 

12

12 

11 

11 

10 

9.4

9.3 

8.8 

8.5 

8.5 

8.5

8.5 

9.0 

9.0 

8.9 

8.5

7.7 

7.2 

6.7 

6.5 

S.5

6.2 

6.1 

6.1 

6.3 

6.1

Secondfoot -days

21.1 

39.8 

116.8

1,261.91

263.7 

363.1 

427 

267.3 

215.8 

93.0 

31.4 

8.7 

5.2

1,852.9

May

5.8 

5.7 

5.7 

5.6 

5.0

4,7 

4.6 

4.4 

4.8 

5.1

5.1 

4.7 

4.7 

7.1

8.2

6.7 

7.8 

11 

17 

16

11 

9.0 

7.7 

6.9 

6.2

6.1 

5.8 

S.7 

5.7 

6.0 

6.0

Maximum

1.9 

1.6 

19

27

54 

35 

21 

13 

17 

5.5 

1.9 

.6 

.2

54

June

5.5 

4.8 

4.3 

4.2

4.2

4.2 

4,0 

3.9 

3.7 

3.3

3.2 

3.1 

3.1 

2.9 

2.6

2.6 

2.6 

2.8 

2.9 

2.5

2.2 

2.0 

1.9 

1.9 

2.1

2.4 

2.6 

2.8 

2.6 

2.1

July

1.9

1.7 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.3 

1.3 

1.2 

1.2

1.1 

1.1 

1.0 

.8 

.7

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4 

.4

Minimum

0.2 

.8 

1.6

-

3.1 

6.2 

11 

6.1 

4.4 

1.9 

.4 

.1 

.1

.1

Aug.

0.4 

.4 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.4

.3 

,3 

.3 

.4 

.6

.5 

.5 

.4 

.3 

.2

.2 

.2 

.2

.2

.1

.2 

.Z 

.2 

.2 

' ?.2 

Mean

0.68 

1.33 

3.77

3.45

8.51 

13.0 

13.8 

8.91 

6.96 

3.10 

1.01 

.28 

 17

5.08

Sept.

0.2 

.2

,2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

,2 

.2 

.2 

.1 

.1

Runoff In 

»cre-feet

42 

79 

232

2,500

523 

720 

847 

530 

428 

184 

62 

17 

10

3,670
SANTA ANA RIVER BASIN 67

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

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", in NW£ sec. 27, T. 1 

 N., K. 3 W,, 1.5 miles northeast of Highland.

Records available.- May 1924 to September 1949. 

Average discharge.- 25 years, 2.32 second-feet.

Extremes.- Maximum daily discharge during year, 7.8 second-feet May 19; no flow on seVeral days.

1924-49: Maximum discharge, 10 second-feet May 30, 1927; no flow at times.

Remarks.- Records good except those for periods of backwater from flashboards or doubtrui or no gage-neight record, which are fair. This canal diverts from City Creek 

0.2 mile above gage-on that stream. (See preceding page for records ,of combined discharge of City Creek and canal.) 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.3 

.2 

.2 

.3.

.3

.3 

.3

.5 

.3

.3

.4 

.5 

.7 

.8

.7 

.7 

.8 

1.2 

1.1

.8

.6 

.6 

.6 

.6

.6 

.8 

1.1 

1.4 

.4 

0

Nov.

0.1 

1.1 

1.4 

1.3 

.9

.9 

.9 

.8 

.9 

1.0

1.0 

.8 

1.0 

l.Q 

1.0

1.1 

1.2 

1.1 

1.2 

1.3

1.3

1.3 

1.4 

1.4 

1.5

1.5 

1.4

1.4 

1.5 

1.4

Dec.

1.5 

1.5 

1.2 

1.6 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

2.0

2.0 

1.5 

2.1 

2.6 

2.4

2.4 

2.0

.7 

1.7 

1.8

2.7 

1.6 

.1 

.1 

.1 

.1

Jan.

0.1 

.1 

.1 

1.4 

3.3

3;2 

3.1 

3.0 

3,2 

3.3

3.3 

2.3

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.2 

.5

.5 

.5 

.5 

.5 

.5 

.5

Feb.

0.5 

.5 

.7 

.6 

.5

.4 

.1 

.3 

.4 

.6

1.5 

.1 

.1 

1.3 

2.2

1.8 

1.3 

.7 

.1 

.2

.2 

.2 

2.3 

2.0 

.1

1.0 

2.3 

2.3

Month

Octo 

Hove

Dace

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Ws

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

2.3 

2.4 

2.4 

2.4 

1.1

.2 

.2 

.1 

0 

0

0 

0 

0

o

0 

0

o

0

1.1

.2

2.4 

3.2 

1.4 

.3 

.3

.1 

0 

0 

0 

1.9 

3.2

Apr.

3.2 

3.3 

3.3 

3.2 

3.2

3.2 

3.2 

3.3 

3.3 

3.3

3.2 

4.3 

4.8 

4.8 

4.3

5.8 

7.1 

7.1 

7.2 

7.0

6.5 

6.2 

5.7 

5.5 

5.5

5.4 

5.6 

5.7 

S.9 

5.7

Secondfoot-days

17.4 

34.1 

50.7

650.14

30.2 

24.3 

25.2 

146.3 

163.5 

93.0 

31.4 

8.7 

4.0

S2ft.fi

Bay

5.3 

5.3 

5.4 

5.3 

4:8

4.5 

4.3 

4.1 

4.5 

4.8

4.8 

4.5 

4.5 

6.1 

5.3

5.0 

6.6 

7.7 

7.8 

7.1

6.1 

5.5 

5.2 

4.9

4.7

4.6 

4.5 

4.5 

4.5 

5.3 

5.9

Maximum

1.4 

1.5 

2.7

6.6

3.3 

2.3 

3.2 

7.2 

7.8 

5.5 

1.9 

.6 

.2

7. ft

June

5.5 

4.8 

4.3 

4.2 

4.2

4.2 

4.0 

3.9 

S.7 

3.3

3.2 

3.1 

3.1 

2.9 

2.6

2.6 

2.6 

2.8 

2.9 

2.5

2,2 

2.0 

1.9 

1.9 

2.1

2.4 

2.6 

2.8 

2.6 

2.1

Minimum

July

1,9 

1.7 

1.5 

1.5

1.5

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.3 

1.3

1.2 

1.2

1.1 

1.1 

1.0 

.8 

.7

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4 

.4

0 

.8

.1

0

0

.1

0 

3.2

4.1 

1.9 

.4

.1 

.1

O

Aug.

0.4 

.4 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.4

.3 

.3 

.3 

,4 

.6

.5 

.5 

.4 

.3 

.2

.2 

.2 

.2 

.2

.1

.2 

.2 

.2 

.2 

.2 

.2

Mean -

0.56 

1.14 

1.64

1.78

.97 

.87 

.81 

4.88 

5.27 

3.10 

1.01 

.28 

.13

1.72

Sept.

0.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2

.1 

.1

Runoff in 

acre-feet

35 

68 

101

1,290

60 

48 

50 

290 

324 

184 

62 

17 

7.9

1 .SftO

Note.- Ho gage-height record May 22-26; backwater from flashboards in canal Oct. 13-15, Nov. 11, 

12, 21-26, Dec. 1, 2, June 16, 17, 24, July 1, 2, 9-18, 26-31, Aug. 12-14, 30, 31; doubtful gageheight record Jan. 4-9, 24-31, Feb. 14-18; discharge Interpolated or cowputed on basis of recorded 

range In stage, weather records, and records for Strawberry Creek near Arrowhead Springs.
68 SANTA ANA RIVER BASIN

Devil Canyon Creek near San Bernardino, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°12'05", long. 117 C 20'10", 

in Muscupiabe Grant, 7.3 miles northwest of San Bernardino, San Bernardino County. 

Altitude of gage, about 1,800 feet.

Drainage area.- 6.16 square miles.

Records available.- November 1911 to September 1912, October 1913 to September 1914, 

iJecemcer 1919 to September 1949.

Average discharge.- 30 years (1913-14, 1920-49)^ 1.97 second-feet.

Extremes.- Maximum discharge during year, 12 second-feet Jan. 20 (gage height, 1.98 feet); 

no flow for several months.

1913-14, 1919-49: Maximum discharge, 3,320 second-feet Mar. 2, 1938, by rainfallrunoff studies; no flow for periods in most years.

Remarks.- Records good. City of San Bernardino diverted 1,200 acre-feet above station 

during year for municipal supply.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan.

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

4.2

2.0

2.2

2.4

1.0

.7

.5

.2

0

0

.02

.OS

Month

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

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

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

Calendar year 1948 ............

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

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

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

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

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

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

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

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

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

Water year 1948-49 ............

Feb.

eO.05

.3

1.4

.6

.2

e.03

2.1

6.5

4.5

7.4

5.0

_

-

- Seoondfoot-days

0

0

0

26.9!

13.26

28 . 7'

17.1

2.7C

.26

0

0

0

0

62.11

Mar.

2.4

1.7

1.6

1.2

1.5

1.4

.7

.5

.3

.2

.8

.5

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Apr.

0.2

.2

.1

.1

.1

f.l

a.l

a.l

a.l

a.l

a.l

f.l

.1

.1

.1

.1

.1

.1

.1

.1

e.05

-

Maximum

0

0

0

> 10

4.2

7.4

2.4

) .2

0

0

0

0

7.4

May

,

1

*> e0.02

J

J

. e.Ol

0

0

0

0

0

0

0

0

0

0

Minimum

0

0

0

0

0

.2

0

0

0

0

0

0

June

Mean

0

O

0

.074

 42E

1.03

.55

.090

o'

0

0

0

.170

July Aug.

Runoff in 

acre-feet

0

0

0

54

26

0 57

34

5.4

.5 o

0

0

0

123 .

Sept.

Diversion

in 

acre-feett

58

60

76

1,120

84

122

214

173

3.23 in74

55

45

1,200

Peak discharge (base, 25 sec. -ft.).- No peak above base.

a No gage-height record; discharge interpolated.

e Daily discharge less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 69

Lytle Creek near Pontana, Calif.

Location.- At intake of Pontana pipe line, lat. 34°12'05", long. 117°27<05", In NW£ sec. 

e, T. l N., R. 5 W t , unsiirveyed, Just nownstream from Lytle Creek power plant of 

Southern California Edison Co. and 8 miles north of Fontana. Altitude of gage, about 

2,200 feet.

Drainage area.- 47.9 square miles.

Records available.- October 1918 to September 1921, October 1922 to September 1949.

Average discharge.- 30 years, 9.27 second-feet. Average combined discharge of creek and 

Fontana pipe line, 30 years, 40.3 second-feet.

Extremes.- Maximum discharge during year, 200 second-feet Jan. 20; no flow during most

1918-21, 1922-49: Maximum discharge, 25,200 second-feet'Mar. 2, 1938, by slopearea method; no flow during most of- each-year.

Remarks.- Records good. Records for Pontana pipe line include Breed pipe line and other 

minor diversions in addition to main pipe-line flow which passes through Pontana 

powerhouse and is then used for irrigation and domestic supply. Table on following 

page shows combined flow of Lytle Creek and Pontana pipe line, which is total flow of 

Lytle Creek,

Cooperation.- Records of flow through diversion works furnished by Pontana Union Water Co. 

Revisions (water year).- W 1011: 1943.

Discharge, in second-feet, water year October 1948 to September

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

*

Nov. Dec, Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

6.9

0

0

0

0

0

0

0

0

0

0

0

Month

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

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

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

Calendar year 1948 ............

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

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

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

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

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

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

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

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

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

Water year 1948-49 ............

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

1.3

2.4

1.7

_

_

-

Secondfoot-days

0

0

46.2

6.9

6.9

9.7

1.56

0

0

.1

. 6

8.8

34.76

Mar.

0.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

1.6

.3

.3

.2

.2

.2

.2

.2

.3

.5

.2

.6

.7

.1

.1

.1

.1

.1

.1

.1

.1

Apr.

0.1

.1

.1

,1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

,1

.04

.02

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

0

14

6.9

2.4

1.6

.1

0

0

.1

Q I'.S

6.9

May

Minima

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

June

Mean

0

0

0

.13

.22

. 25

.31

.05

0

0

 00

.03

.29

.09.

July

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.8

0

0

0

Runoff in 

acre-feet

0

0

0

91

14

14

19

2 3.1

0

0

5 ,Z

1.6

17

5 69

Sept.

0

0

0

0

0

0

o

.3

1.5

1.5

1.5

1.5

1.5

1.0

0

0

0

0

0

0

0

O

0

0

0

0

0

o

0

0

Diversion 

in acre-feet

825

355

958

13,820

906

1,270

1,210 

1,430

1,040

385

770

I I 0

697

11,830

 Diversion through Pontana pipe line. 

947809 O - 51 - 6
70 SANTA ANA RIVER BASIN

Combined discharge, in second-feet, of tytle Creek and Fontana pipe line near Fontana, Calif. , 

water year October 1948 to September 1949

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 

14

13 

13 

13

13 

13

14

14 

14 

14 

13

13 

14 

13 

14 

14

13 

13 

13 

13 

13

13 

14 

14

14 

14 

14

Nov/

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 14-

14

14 

14 

14 

14 

15

Pec.

14 

14 

15 

16 

15

15 

15

15 

16 

15

15 

15

15 

15 

15

15 

19 

17 

17 

17

16 

17 

17 

16 

16

17 

81 

16

13 

12 

12

Jan.

13 

12 

12 

12 

12

11 

11 

11 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

22

15 

23 

23 

21 

20

20 

20 

19 

19

18 

18

Feb.

17 

17 

17 

17 

16-

16 

18 

17 

17

17

19 

19 

18 

18 

18

16 

18 

18 

18 

18

18 

17 

18 

18

20

20 

23 

22

Month

00 to 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apri 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

V

ter year 1948-49 .......................

Mar.

21 

21 

21 

21

21

21 

21 

20 

20 

20

22 

22 

21 

21

21

21

20 

20 

21 

21

21 

22 

22 

22 

22

21 

21 

21

21 

21 

21

Apr.

20 

20 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

19 

19 

19

19 

20 

20 

20 

22

25 

25 

25 

25 

25

Secondfoot -days

416 

421 

483

7,021

464 

507 

652 

608 

720 

522 

446 

393 

360

5,992

»»y

25 

25 

26 

26 

25

24 

24 

24 

24 

23

23 

21 

2? 

24 

26

25 

25 

24 

24 

23

23 

23 

22 

22 

21

21 

21 

21 

21 

21 

21

Maximum

14 

15 

21

49

23 

23 

22 

25 

26 

20 

16 

13 

12

26

June

20 

20

19 

18 

17

17 

17 

18 

1918-

18 

18 

17 

17 

17

17 

17 

17 

17 

17

17 

17 

17 

17 

16

17

17 

17 

16 

16

July

16 

16 

16 

16 

15

15 

16 

15 

15

15

15

15 

14 

14 

14

14. 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

13 

13 

13 

13

Minimum

13

14 

12

12

11 

16 

20 

19 

21 

16 

13 

11 

12

11

Aug.

13 

13 

13 

13 

13

13 

13 

13

13 

13

13

13 

13 

13 

13

13 

13 

13 

13 

12

11 

12 

13 

13 

13

12 

12 

12 

12 

12 

12

Mean

13.4 

14.0 J 

15.6

19,2

15.0 

18.1 

21.0 

20.3 

23.2 

17.4 

14.4 

12.7 

12.0

16,4

Sept.

12 

12 

12 

12

12

12

12 

12 

12 

12

12 

12 

12

12 

12

12

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

Runoff in 

sore-feet

825 

835 

958

13,910

920 

1,010 

1,290 

1,210 

1,430 

1,040 

885 

780 

714

11,900
SANTA ANA RIVER BASIN 71

Lytle Creek (east channel) at Bernardino, Calif.

Location.- Water-stage recarder, lat. 34°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 1949.

Extremes.- Maximum discharge during year, 9.2 second-feet May 19; maximum gage height, 

1.B3 feet Feb. 26; minimum daily discharge, 0.2 second-foot during many days.

1929-49: 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 Eytle Creek (east and west channels combined), 29,400 

Second-feet Mar. 2, 1938.

Remarks.- Records fair. Water diverted from Lytle Creek above station by Fontana pipe 

line and minor diversions for irrigation, and to debris cone for ground-Water recharge. 

Since 1945, Lytle Creek flood-control dam 1.5 miles above station 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

OotO 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mfiv

June 

July 

Augu 

Sept

Ha

Oct.

0.8 

.6 

.8 

.7 

.6

.6 

.6 

.7 

.5 

.6

'.3 

.5

1.1 

1.1 

1.1 

.8 

1.7 

.8

Nov.

0.6 

8 

.9 

.9 

.8

.9 

1.0 

1.8 

1.1 

.8

.8 

1.5 

.8 

.8 

.6

.6 

.5 

.5 

.5

.5

.6 

.6 

.5 

.6 

.4

.5 

.6 

.4 

.6 

.6

Dec.

0.5 

.5 

.8 

.8 

.6

1.2 

1.1 

.7 

.8 

.6

.7 

.6 

.7 

.8 

.8

.9 

1.0 

.6 

.6 

.6

.6 

.9 

.8 

.6 

.5

.9 

l.E 

.7 

.6 

.6 

.7

Jan.

0.6 

.6 

.8 

.7 

.6

.6 

.6 

.6 

1.0

1.0

1.1 

1.2 

1.4 

1.0 

.7

 6 .7' 

.7 

1.0 

1.7

.7 

1.0 

1.4 

.9 

.6

.4 

.5 

.4 

.3 

.3 

.4

.Feb.

0.3 

.4 

.4 

.4 

.4

.4 

.9 

.6 

.6 

.6

.9

i7 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.6

.5 

.5 

.9 

1.0 

.9

1.2 

1.7

1.0

Month

Bber. . . ........-.--.-- 1 . -..-.-........

lendar year 1946 

ary

ter year 1948-49 .......................

Mar.

0.7 

.7 

.6 

.9 

.9

.9 

.9 

.9 

.6 

.6

.7 

.6 

.6 

.7 

.5

.5 

.4 

.4 

.5 

.4

.5 

.5 

.6 

.5 

.2

.2 

.3- 

.4 

.4 

.4 

.4

Apr.

Secondfoot -days

19.4 

22.1 

23.0

291.3

24.1 

19.0 

17,4 

19.3 

22.9 

17.6 

15.0 

16.1 

14.6

230.5

0.5 

.5 

.4 

1.2 

.5

.4

.4 

.5 

.4 

.4

.4 

.4 

.3 

.3 

.4

.5 

.9 

1.2 

1.2 

1.0

.9 

.9 

a. 9 

a. 8 

a. 8

a. 7 

a. 7 

a. 6 

.6 

.6

May

0.4 

.6 

1.0 

f.9 

fl.O

1.1 

.8 

.8 

.6 

.6

.6 

a. 6 

.6 

.6 

.8

.7 

.8 

1.1 

1.3 

.7

.6 

.4 

.7 

.5 

.4

.4 

.5 

.6 

.8 

1.0 

1.4

Maximum

1.7 

1.8 

1.2

3.4

1.-7 

1.7 

.9 

1.2 

1.4 

1.5 

.9 

1.5 

1.3

1.8

June

1.5 

1.1 

.8 

.4 

.6

.4 

.4 

.5 

.5

.5

.4 

.4 

.9 

1.2 

1.2

1.4 

.9 

.4 

.4 

.5

.4 

.4 

a. 3 

.2 

.2

.2 

.4 

.4 

.4 

.3

Minimum

July

0.3 

.4 

.5

.2

.3 

.3 

.2 

.3 

.4 

.2 

.2 

.2 

.2

.2

0.3 

.3 

.3 

.4 

.6

.4 

.9 

.8 

.5 

.3

.3 

.3 

.5 

.3 

.7

.3 

.2 

.4 

.8 

.6

.4 

f.4 

.4 

a. 5 

.8

.6 

.5 

f.6 

f.S 

.7 

a. 4

Aug.

0.4 

.5 

.4 

a. 3 

a. 3

.3

f.2 

f.4 

f.6 

.5

a. 4 

.2 

.3 

.6 

.8

1.2 

.9 

.8 

.4 

.4

.6 

l.S 

.8 

.5 

.3

.4 

.5 

.3 

.5 

.4 

.4

Mean

0.63 

.74 

.74

.80

.76 

.68 

.56 

.64 

.74 

.59 

.48 

.52 

.49

.63

Sept.

0.3 

.4 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.2

.2 

.6 

.6 

.9 

.4

.2 

.7 

1.2 

1.3 

.8

f.6 

 f.4 

.3 

a. 2 

.4

.4 

a. 4 

a. 4 

a. 3 

.4

Runoff in 

acre<-feet

38 

44 

46

579

46 

38 

35 

38 

45 

35 

30 

32 

29

458

Peak dlschari large (bags. 

height reco

12 sec.-ft-).- No peak above base.

a No gage-height record; discharge computed on basis of 1 discharge measurement, partial gageheight record, and by Interpolation.

f Computed on basis of partly estimated gage-height record.
78 SANTA ANA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location.- Water-stage recorder, lat. 34°16'00", long. 117°37'35", in SW^SEtj sec. 12, T. 

2 w., 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 1949.

Average discharge.- 29 years (1920-49), 10.0 second-feet.

Extremes.- Maximum discharge during year, 110 second-feet Jan. 20 (gage height, 5.53 

r'eetj; minimum daily, 2.0 second-feet on several days during September.

1919-49: 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 below 10 second-feet and fair above. No diversion or regulation 

aoove station.

Revisions (water year).- W 1091: 1946.

Discharge, In second-feet, water year October 1948 to September 1949

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.

3.0 

3.0 

3.0 

3.2 

f3.H

a3.2 

f3.2 

3.2 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.6 

3.4 

3.4

3.2 

3.0 

3.0 

3.2 

3.2

3.2 

3.4 

3.4 

3.4 

3.4 

3.4

Nov.

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

Dec.

3.6 

3.6 

3.9 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

9.4 

5.8 

5.2 

4.9

4.6 

5.2 

4.9 

4.6 

4.6

9.2 

12 

6.4 

5.5 

4.9 

4.6

Jan.

4.6 

4.4 

4.2 

4.2 

3.9

3.9 

4.2 

4.4 

4.6 

4.9

4.9 

4.9 

4.6 

4.6 

4.9

4.9

4.9 

4.9 

5.8 

2

46 

48 

30 

18 

16

14 

12 

10 

9.0 

9.0 

8.3

Feb.

9.0 

8.3 

9.0 

9.0 

9.0

9.6 

11 

8.3 

7.1 

8.3

16 

17 

10 

S.3 

d8.1

d7.9 

7.7 

9.0

10 

11

1011 

11

14

13

11 

11 

9.6

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar. ,

9.2 

9.2 

9.6 

8.8 

8.8

8.5 

8.8 

8.8 

8.8 

8.8

8.8 

8.8 

8.5 

8.2 

7.8

.8 

.8 

.8 

.8 

.8

.5 

.1 

.1

is

.1 

.1 

.5 

.8

Apr.

7.1 

7.1 

6.8 

7. 

S.

6.

6. 

6. 

f5.8

a5. 7 

a5.6 

a5. 5 

f5.5 

5.2

.9 

.6 

.6 

.6 

.4

.4 

.4 

.2

4.2

4.2 

4.2 

4.2 

3.9 

4.2

Seoondfoot-days

101.8 

105.0 

149.7

1,623.4

380.0 

284.2 

249.1 

158.6 

124.5 

91.4 

77.8 

82.8 

64.6

1,869.5

Peak discharge (base, 140 see. -ft.).- Ho peak above ba

May

4.2 

4.2 

4.4 

4.6 

4.4

4.2 

4.2 

4.2 

4.2 

4.2

3.9 

3.9 

3.9 

4.2 

4.2

4.2 

4.4 

4.6 

4.6 

4.4

3.9 

3.9 

3.6

3.4

3.4 

3.4 

3.6 

3.6 

3.6 

3.6

Maximum

3.6 

3.6 

12

32

72 

17 

9.6 

7.1 

4.6 

3.4 

3.2 

3.0 

2.4

72

June

3.4 

3.4 

3.2 

3.2 

3.2

3.0 

3.0 

3.0 

3.0 

3.0

3.2 

3.0 

2.8 

2.S 

2.6

2.6 

2.8 

3.0 

3.0 

2.8

2.8 

2.6

2.8

3.4

3.4 

3.4 

3.4 

3.2 

3.2

July

3.2 

3.0 

2.8 

2.8 

2.8

2.6 

2.6 

2.6 

2.6 

2.4

2.6 

2.6 

2.6 

2.4 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2

2.6

2.6 

2.6 

2.6 

2.6 

2.6 

2.4

Minimum

3.0 

3.4 

3.6

2.6

3.9 

7.1 

6.8 

3.9 

3.4 

2.6 

2.2 

2.4 

2.0

2.0

36. .

Aug.

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.8 

2.8

2.8 

3.0 

2.8 

2.8 

3.0

3.0 

2.8 

2.6 

2.6 

2.6

2.6 

2.6 

2.6

2.6

2.6 

2.6 

2.6 

2.6 

2.6 

2.4

Mean

3.28 

3.50 

4.83

4.44

12.3 

10.2 

8.04 

5.29 

4.02 

3.05 

2.51 

2.67 

2.15

5.12

Sept.

2.4 

2.2 

2.2 

2.2 

2.2

2.0 

2.0 

2.0 

2.2 

2.0

2.0 

2.0 

2.2 

2.2 

2.2

2.2 

2.2 

2.0 

2.0 

2.2

2.2 

2.2 

2.2

2.2

2.2 

2.2 

2.2 

2.2 

2.2

Kunoff In 

acre-feet

202 

208 

297

3,220

754 

564 

494 

315 

247 

181 

154 

164 

128

3,710

d Doubtful gage-height record; discharge Interpolated.

f Computed on basis of partly estimated gage-height record.
SANTA ANA RIVER BASIN 73

Lone Pine Creek near Keenbrook, Calif.

Location.- Water-stage recorder, lat. 34°15'55", long. 117°27'55", in SWir sec. 12, T. 2 N., 

K. t> w., 50 feet upstream from Atchison, Topeka & Santa Fe Railway bridge, 0.7 mile 

northeast of Keenbrook, and 16 miles northwest of San Bernardino. Datum of gage, 

2,6Q5.9S feet above mean sea level, datum of 1929, supplementary adjustment of 1946. 

Prior to September 1938 at datum 0.98 foot higher.

Drainage area.- 15.0 square miles.

Records available.- December 1919 to September 1938, June to September 1949.

Average discharge.- 18 years (1920-38), 1.63 second-'feet.

Extremes.- Maximum daily discharge during period, 0.8 second-foot June 17-22; minimum, 0.4 

s&cona-foot on many days.

1919-38: 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

6 

9

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

31 

22 

23 

24 

25

26 

27 

28 

2f9 

30 

31

Oct. Nov. Dec.

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Haro 

Apr!

June 

July 

Augu 

Sept

Th

Jan. Feb.

Lender year

h. ......................................

e period ................................

Mar. Apr.

Secondroot-days

UT5

-. 14.9 

15.7 

13.0

-

May

Maximum

o'.e

,6 

.6 

.5

-

June

0.6

.6 

.6 

.7 

.7 

.7

.7 

.8 

.8 

.8 

.8

.8 

.8

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

July

0.6 

.6

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.5 

.5 

.4 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

 5 

.6 

.6

Minimum

0.6 

.4 

.4

.4

-

Aug.

0.6 

.6 

.6 

.6 

.6

' .6 

.6 

.6 

.5

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.4 

.4

.4

.4 

,4 

,4 

.5 

.5 

.5

Mean

0.69 

.48 

.51 

.43

-

Sept.

0.5 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.4 

.5

.5 

.5 

.5 

.5 

.5

Runoff In 

acre-feet

29

30

31 

26

116 -
74 SANTA ANA RIVER BASIN

Meeks & Daley Canal near Colton, Calif.

Ideation.* Water-stage recorder and sharp^crested weir, lat, 34°04'4J5", long. X17 P 16'00". 

in s an Bernardino Grant, at point of diversion from Warm Creek anct 1,6 miles northeast 

of Colton, San Bernardino County, Altitude of gage, 965 feet (from topographic map).

Records available.- September 1920 to September 1949. 

Average discharge.- 29 years, 11.2 second-feet.

Extremes.- Maximum daily discharge during year, 20 second-feet Aug. 1, 17; minimum daily 

aiscnarge, 0.8 second-foot Jan. 3.

1920-49:' Maximum dally 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 

nor tineas t 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 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19.2 

19.1 

19.2 

19.6 

19.6

19.5 

19.3 

19.2 

19.2 

19.4

19.4 

19.3 

19.3 

19.1 

19.0

18.9 

18.7 

19.2 

18.7 

18.8

18.7 

18.7 

19.0 

19.0 

19.2

19.5 

19.8 

19.7 

19.4 

19.1 

18.6

Nov.

18.7 

18.5 

18.4 

18. S 

19.3

19.2 

19.1 

19.4 

19.0 

18.8

18.7 

19.1 

18.9 

19.0 

19.3

19.1 

19.4 

19.0 

19.6 

19.8

19,4 

19.8 

19.6 

19.4 

19.3

19.3 

19.2 

19.3 

19.4 

19.2

Dec,

19,1 

18.9 

18.9 

18.5 

19.3

19.8 

19.7 

19.1 

18.7 

18.3

18.4 

19.4 

19.8 

19.1 

19.2

19.1 

15.3 

5.4 

6.5 

7.8

6.1 

6.1 

6.0 

5.9 

5.7

5.8 

5.5 

3.5 

3.2 

3.0 

3.1

Jan,

3.1 

2.3 

.8 

7.1 

10.4

10.3 

10.3 

10.3 

12.6 

16.6

11.8 

7.3 

7.9. 

7.5 

7.1

7.0 

4.0 

2.5 

2.7 

3.2

2.8 

2,8 

2.9 

2.7 

2.6

2.6 

2.5 

2.5 

2.4 

2.4 

2.4

Feb.

2.4 

2.8 

3.1 

3.0 

2.9

2.9 

3.3 

3.1 

2.6 

2.0

1.3 

1.7 

2.7 

2,7 

a2.6

a? .5 

2.4 

2,4 

2.4 

2.4

2.4

2.4 

2.5 

2.6 

2.6

2.9 

2.8 

2.2

Month

Oeto 

Hove 

Deoe

ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ai*y

ter year 1948-49 .......................

Mar.

2.1 

2.1 

2.1 

1.9 

1.9

1.8 

1.9 

1.8 

1.7 

1.7

4.2 

4.9 

3.7 

4.2 

5.1

5.1 

5.0 

5.0 

5.7 

5.5

5.2 

5,0 

5.4 

5.7 

11,4

8.9 

7.9 

7.9 

8.0 

7.3 

6.3

Apr.

, 7.5 

12.4 

12.9 

18. S 

19.4

19.3 

19.3 

19.2 

19.0 

19.0

18.9 

19.0 

19.1 

16.8 

19.8

19.8 

19,5 

19.4 

19.3 

19.1

19.4 

19.3 

19.1 

19.1 

19.3

19.1 

19.1 

19.3 

18.9 

18.6

Secondfoot-days

594,4 

575.0 

394.2

5,828.0

172.8 

71,6 

146.4 

548.7 

522.7 

575.5 

593.4 

601.1 

574.0

5,369.8

May

18.9 

19.0 

19.1 

19.6 

19.3

19.3 

19.6 

19,5 

19.4 

19.3

19,3 

19.3 

19.4 

19.6 

19.4

19.4 

18.2 

9.1 

8.3 

7.9

7.9 

7.7 

7.7 

10,5 

19.1

19.6 

19. S 

19.5 

19.3 

19.3 

19.6

Maximum

19.8 

19.8 

19.8

20.9

16.6 

3.3 

11.4 

19.8 

19.6 

19.7 

19.7 

20 

19.8

20

June

19.7 

19.7 

19.5 

19.6 

19.6

19.4 

19.6 

19.6 

19.4 

19.3

19.2 

19.3 

19.2 

19.4 

19.1

19,0 

19.1 

18.6 

18.8 

18.9

19.0 

18.9 

18,9 

18.9 

18.7

19.0 

19.4 

19.0 

18.9 

19.8

July

18.8 

18.9 

19.0 

19.2 

19.1

19.0 

19.0 

19.0 

19.0 

19.1

18.9 

18.7 

19,3 

19.2 

19.2

19,1 

19.1 

19.0 

19.4 

19,4

19.3 

19.2 

19.3 

19.6 

19.7

19.4 

19.3 

19.2 

19.0 

19.0 

19.0

Minimum

18.6 

18.4 

3.0

.4

.8 

1.3 

1.7 

7.5 

7.7 

18,6 

18,7 

18.8 

16.8

.8

Aug.

20 

19.3 

19.4 

19.4 

19.6

19.4 

19.4 

19.3 

19.1 

19.1

19.1 

19.1 

19.3 

19.4 

19.6

19,4 

20 

19.4 

19.4 

19.4

19.4 

19.4 

19.4 

19.4 

19.6

19.6 

19,5 

19.4 

19.4 

19.1 

18.8

Mean

19.2 

19.2 

IS. 7

15.9

5.571 

2.56 

4.72 

18.3 

16.9 

19.2 

19.1 

19.4 

19.1

14.7

Sept.

18.9 

19.1 

19.8 

19.6 

16.8

19.4 

19.4 

19.3 

19.4 

19.4

19.4 

19,3 

19.2 

19.2 

19.2

19.2 

19.1 

19.1 

19.3 

19.1

19.3 

19.3 

19.2 

19.0 

17 .0

19.4 

19.4 

19.4 

19.4 

19,4

Runoff In 

sera-feet

1,180 

1,140 

782

11,550

343

142 

290 

1,090 

1,040 

1,140 

1,180 

1,190 

1,140

10,660

a No gage-height record; discharge computed on basis of recorded range In stage and by inter, 

polation.
SANTA ANA RIVEH BASIN 75

Day Creek near Etiwanda, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°ll t OO", long. 117°32'25", 

in awt 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 df -gage, about 2,940 feet.

Drainage area.- 4.8 square miles.

Records available.- January 1929 to September 1949.

Average discharge.- 20 years, 4.81 second-feet.

Extremes - Maximum discharge during year, 24 second-feet Jan. 20; minimum daily, 0.3 

second-foot on several days.

1929-49: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runtfff 

studies; minimum, 0.1 second-foot Dee. 19, 20, 1933.

Remarks.- Records good. Etiwanda Water Co. diverted 1,280 acre-feet above station during 

year. Flow of bypass channel, 75 feet west of gaging Station, amounted to about 40 

acre-feet during year.

Discharge, In second-feet, water year October 1943 to September 1949

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 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4

.5 

.6

.7

.6 

.9 

1.5 

1.8

1.1

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Nov.

0.4 

T4 

.3 

.4 

.3

.3 

.3 

.5 

.3 

.3

.4 

.4 

.4

.4

.4 

.4

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3

.3

.3

.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.6 

2.7 

1.2 

.4 

.4 

.4

Jan.

0.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.3 

.3

1.1

1.4 

1.6 

1.6 

1.9 

12

6.1 

5.8 

5.2 

4.8 

3.0

.9 

.8 

.8 

.8 

.8 

.8

Month

OCto 

Hove 

Dece

Ca

Janu 

Pebn 

Hare 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

Feb.

0.8 

.9 

1.1 

1.2 

1.2

1.2 

1.5 

1.5 

1.5 

1.3

1.3 

1.8 

1.6

1.4

1.6 

U7 

1.9 

2.0 

2.0

2.1 

2.1 

1.7 

3.6 

6.5

6.1 

5.5 

4.9

lendar year 1948

ter year 1948-49 .......................

Mar.

2.9

'.4:

3.2 

3.2 

3.1

2.8

1.4 

.3 

.3 

1.5 

3.5

1.7 

1.3 

4.2 

5.2 

4.8

2.6 

.5 

.5 

.5 

.5 

.5

Apr.

0.5 

.5 

.5 

.4 

.4

.4 

.5 

.5 

.5 

.5

.5 

.5 

.5

.5

.5

2.9 

1.6

.4

.4 

.4

.4 

.4

Secondfoot -days

16.1 

10.7 

14.3

239.5

53.4 

61.5 

50.9 

17.0 

10.0 

9.0 

9.3 

9.3 

9.0

270.5

May

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3

.3 

.4 

.4 

.4

.4

.4 

.4 

.4

.3 

.3

.3 

.3 

.3 

.3 

.3 

.3

Maximum

1.8 

.5 

2.7

17

12 

6.5 

5.2 

2.9 

.4 

.3 

.3 

.3 

.3

12

June

O.S 

.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

July

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

Minimum

0.2 

.3 

.3

.2

.2 

.8 

.3 

.4 

.3 

.3 

.3 

.3 

.3

.2

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

Mean

0.52 

.36 

.46

.65

1.72 

2.20 

1.64 

.57 

.32 

.30 

.30 

.30 

,30

.74

Sept.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

,3 

.3

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

Runoff In 

acre-feet

32 

21 

28

473

106 

122 

101 

34 

20 

18 

18 

18 

18

5S6

Peak discharge (base, 25 sec.-ft.),- Ho peak above base.
76 SANTA ANA RIVER BASIN

Cucaraonga Creek' near Upland, "Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°10'15", long. 117°37'55", 

in Niii sec. 17, T. 1 N., R. 7 W., 6 miles north of Upland. Altitude of gage, about 

2,550 feet.

Drainage area.- 10.1 square miles.

Records available.- December 1928 to September 1949.

Average discharge.- 20 Years (1929-49), 8.85 second-feet.

Extremes.- Maximum discharge during year, 19 second-feet Jan. 20 (gage height, 2.23 

feetj; minimum daily discharge, 0.7 second-feet Aug. 20-24.

1928-49: Maximum discharge, 10,300 second-feet Mar. Z, 1938, from rainfall-runoff 

study; minimum daily, that of Aug. 20-24, 1949.

Remarks.- Records fair. No diversion or regulation above station. 

Revisions (water year).- W 1041: 1944.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.3 

1.3 

1.2 

1.3

1.5

1.4 

1.2 

1.2

1.2

1.3

1.4 

1.4 

1.4 

1.5 

1.5

1.5 

1.5 

2.2 

2.0 

1.9

1.7 

1.6 

1.6 

1.6 

1.6

1.6 

1.7 

1.8 

2.0 

2.0 

2.0

Nov.

1.9 

1.9 

2.0 

2.0 

1.9

1.8 

1.8 

1.8 

1.8 ' ' 1.8

1.8 

1.8 

1.8

1.8 

1.9

2.0 

2.0 

1.9 

1.8 

1.8

1.8 

2.0 

2.2 

2.2 

2.3

2.2 

2.1 

2.1 

2.1 

2.1

Dec.

2.1 

2.1 

2.3 

2.6 

2.4

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

4.9 

3.7 

3.0 

2.8

2.7 

3.2

3.4 

2.8 

2.7

3.3 

6.3 

3.5 

2.9 

2.7 

2.6

Jan.

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.2 

2.1 

2.6 

2.4

2.6 

2.7 

3.2 

3.2 

2.9

2.8 

2.7 

2.7 

3.6

12

7.7 

6.4 

5.3 

4.4

4.1

3.9 

3.9 

3.9 

3.8 

3.8 

3.7

Feb.

3.7 

3.7 

3.7 

3.7 

3.6

3.6 

3.9 

3.7 

3.6 

3.6

4.7 

3.S 

3.7 

3.6 

3.5

3.5 

3.6 

3.8 

4.0 

4.3

4.3 

4.4 

4.7 

6.0 

5.9

5.4

5.5 

4.8

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Mare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar yeaf 1948

ter year 1948-49 .......................

Mar.

4.4 

4.0 

3.8 

3.8 

3.8

3.6 

3.5

3.2 

3.2

6.3 

5.2 

5.0 

4.8 

4.8

4.8 

4.8 

4.8 

5.1 

5.1

5.1 

5.2 

5.2 

5.5 

5.2

5.1 

5.2 

5.2 

5.1 

5.2 

5.5

Apr.

5.3 

5.5 

5.2 

S.I 

4.9

4.8 

4.7

4.5 

4.4

4.3 

4.1 

4.0 

4.0 

3.9

3.8 

3,7 

3.7 

3.7 

3.6

3.5 

3.4 

3.2 

3.4 

3.4

3.4 

3.4 

3.4 

3.S 

3.5

Second* 

foot-days

48.4 

58.4 

87.3

1,037.1

112.4 

117.0 

143.9 

121.8 

89.0 

57.0 

44.1 

1 29.4 

29.7

938.4

May

3.2 

3.2

3.2 

3.0

2.8 

2.8

2.8 

2.9

2.9 

2.8 

2.9 

3.0 

3.1

3.1 

3.2 

3.0 

3.9 

3.4

2.9 

2.7 

2.6 

2.4 

2.3

2.4 

2.3 

2.4 

2.5 

2.6 

2.5

Maximum

2.2 

2.3 

6.3

15

12 

6.0 

5.5 

5.5 

3.9 

2.4 

1.7 

1.2 

1.2

12

June

2.4 

2.3

2.0 

2.0

2.0 

2.0

2.0 

2.0

2.0 

1.9 

1.9

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.7

1.6 

1.6 

1.6 

1.7 

1.7

1.9 

2.0 

2.0 

2.0 

1.8

July

1.7 

1.6

1.6 

1.5

1.5 

1.5

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.3

1.3 

1.3 

1.3 

1.3 

1.4

1.4 

1.4 

1.4 

1.4 

. 1.4

1.5 

1.5 

1.5 

1.4 

1.3 

1.2

Minimum

1.2 

1.8 

2.1

1.1

2.1 

3.5 

3.2 

3.2 

2.3 

1.6 

1.2 

.7 

.8

.7

Aug.

1.2 

1.1

1.1 

1.0

1.0 

1.0

1.2 

1.2

1.1 

1.1 

1.0 

1.0 

1.0

1.0 

.9 

.8 

.8 

.7

.7 

.7 

.7 

.7 

.8

.8 

.8 

.9 

.9 

1.0 

1.0

Mean

1.56 

1.95 

2.82

2.83

3.63 

4.13 

4.64 

4.06 

2.87 

1.90 

1.42 

.95 

.99

2.57

Sept.

1.0

1.1

1.1

1.2

1.2 

1.1

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.0

'. .9 

.9 

.8 

.8 

.8

.8 

.8 

.8 

a. 8 

a. 9

a. 9 

al.O 

al.O 

al.O 

al.O

Runoff In 

acre-feet

96 

. 116 

173

2,060

223 

232 

285 

242 

177 

113 

87 

58 

59

1.860

Peak discharge (base, 80 sec. -ft.}.- No peak above base.

a No gage-height record} dis'char'ge interpolated.
SANTA ANA RIVER BASIN 77

San Jacinto River near San Jacinto, Calif.

Location.- Water-stage recorder, lat. 33°44'05", long. 116°49'45", in SE£ sec. 13, T. 5

 S.', R. IE., at highway bridge 1 mile downstream from North Pork and 8.2 miles southeast of San Jacinto. Altitude of gage, about 1,980 feet.

Drainage area.- 140 square miles.

Records available,- October 1920 to September 1949.

Average discharge.- 26 years (1921-25, 1927-49), 22.4 second-feet.

Extremes.- Maximum discharge during year, 56 second-feet Mar. 20 (gage height, 3.94 feet); 

no rlow during most of year.

1920-49: Maximum discharge, 45,000 second-feet Feb. 16, 1927, by slope-area method; 

no flow during several months of most years.

Remarks.- Records good. For records of combined discharge of San Jacinto River and di-

 versions 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.

Revisions (water year).- W 881: 1938.

Discharge, in second-feet, water year October 1948 to September 1949

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

Oct. Nov. Dec.

O 

O

o

0

o

0 

0

o

0 

0

o 

o

0

o

0

0 

0 

0

o

0

0 

0 

o 

o

0

0 

2.0 

2.1 

.5

.1 

0

Jan.

O 

0 

0 

O 

0

0 

0 

0 

0

o

0 

0 

0

.3 

.7

.5 

.5 

1.2

1.8 

4.0

14

11 

12 

8.5 

7.3

5.8 

5.8 

3.3 

.1 

0 

O

Feb.

O 

0 

0 

0 

0

0 

1.2 

2.5 

.8 

.5

1.0 

4.2 

.8

.1 

.1

0 

.2 

1.3 

5.0 

7.0

11 

9.3

11 

15 

28

18 

28 

20

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

her............................. ........

lendar year 1948 

ary

uary

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

ter year 1948-49 .......................

Mar.

13 

10 

6.6 

6.6 

18

13 

9.9 

7.0 

4.3 

3.4

17 

23

16 

15 

19

19 

17 

20 

25 

44

37 

32 

29

24 

23

24

26 

36 

27 

19 

17

Apr.

12 

10 

9.0 

7.3 

8.5

10 

13 

16 

19 

24

29 

32 

33 

34 

34

28 

27 

26 

23 

20

25 

29 

30 

29 

23

16 

10 

9.4 

8.5 

7.3

Secondfoot-days

0 

o 

4.7

107.37

76.8 

165.0 

600.8 

602.0 

103.6 

.7 

3.8 

O 

O

1,557.4

May

6.2

5.5 

5.5 

2.4 

.2

.2 

.2 

.2 

.1 

.1

.1 

.2

.2 

1.7

12

8.0 

9.9 

10

11 

17

9.0 

3.8

.1 

O 

0

0 

0

o

0

o

0

Maximum

0 

0

2.1

46

14 

28 

44 

34 

17 

.2 

1.1 

0

o

44

June

O

.1 

.1 

0 

O

O

o

0 

0

o

0

o

0

o

0

o 

o

0

o 

o

0

o 

o

.1

0

0 

.2

.2 

0 

0

July

0 

o

0 

0 

0

0

.1 

.1

.2

.2

.3 

1.1

1.1 

.7 

0

0 

O 

O 

0 

0

0 

0 

0

o

0

o 

o

0

o

0

o

Minimum

0 

0 

0

o

0

o

3.4

7.3 

0. 

O 

0 

0 

0

0

Aug.

Mean

0 

0 

.15

.293

2.48 

5.89 

19.4 

20.1 

3.34 

.02 

.12 

0 

0

4.27

Sept.

Runoff in 

acre-feet

O 

O 

9.3

213 1

152 

327 

1,190 

1,190 

205 

1.4 

7.5 

O 

O

3,080

Peak discharge (base, 100 sec.-ft.).- No peak above base.
78 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of San Jaointo River and diversions near San Jaolnto, Calif., 

water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

B 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.5 

.5 

.5 

.7

1.0 

.8 

.6 

.7 

.B

.9 

1.0 

1.0 

1.2 

1.3

1.2 

1.1 

.1 

.1 

2.0

1.6 

1.1 

1.0 

.2 

.6

.6 

1.4 

2.2 

2.6 

3.0 

1.7

Goto 

Hove

Deee

Ca

Janu 

Febr 

Marc 

Aprl 

May. 

June 

July 

Augu 

Sept

Wa

Nov.

0.6 

.7 

.7 

.7 

.7

.6 

.6 

.6 

.6

.6

.6 

.6

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6

.6 

.6 

.6

.6 

.7 

.7 

.7 

.7

Dec.

0.7 

.7 

.7 

.9 

.9

.9 

.9 

.9 

.9 

1.0

.9 

.9 

.9 

.9

.9

1.0 

1.1 

1.1 

1.1 

1.0

1.0 

1.0 

.3 

.3 

.3

.3 

2.3 

2.4 

.8 

.4 

.3

Jan.

0.3 

.3 

.3 

1.0

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.7 

2.1

1.9 

1.5 

2.2 

2.8 

5.0

14 

11 

12 

8.8 

7.6

6.1 

6.1 

7.6 

4.4 

4.3 

4.6

Feb.

6.6 

6.6 

6.6 

6.6 

6.6

8.6 

9.8 

11 

9.1 

8.8

9.3 

12 

9.4 

8.7 

8.7

8.6 

8.8 

9.9

14 

16

24 

23 

24 

28 

40

35

43 

35

Month

lendar year

ter year 1948-49 .......................

Mar,

29 

26 

23 

23 

34

31 

28 

25 

22 

21

41 

45 

38 

37

41

40 

38

41 

46 

68

56 

54 

51 

46 

45

50 

54 

64 

52 

42 

40

Apr.

38

35 

33 

33 

36

39 

41 

44 

47 

52

57 

60 

62 

62 

62

52 

51 

51 

48 

45

48 

52 

53 

52 

46

37

31 

31 

30 

28

Secondfoot-' days

3E.6 

19/0 

27,7

-

118.2 

435.7 

1,251 

1,356 

658 

541.6 

429.0 

258.0 

30.2

5,157.0

May

28 

28 

27 

25 

22

15 

12 

14 

16 

18

17 

16 

16 

21 

33

31 

27 

27 

28 

34

21 

19 

22 

22 

22

17 

17 

16 

16 

16 

15

Maximum

3.0 

.8 

2.4

-

14 

45 

68 

62 

34 

22 

22 

14 

1.1

68

June

14 

14 

13 

19 

22

18 

17 

19 

19 

19

19 

19 

19 

19 

19

19 

19 

20 

20 

19

20 

19 

19 

15 

19

18 

8.6

15 

21 

21

Minimum

July

18 

18 

17 

17 

8.1

6.7 

6.8 

6,5 

6.3 

6.3

7.4 

8.2 

8.2 

7.6 

9.9

22 

22 

22 

22 

22

15 

17 

17 

17 

17

14 

14 

14 

14 

14 

14

0.1 

.6 

.3

-

.3 

6.6 

21 

28 

12 

8.6 

6.3 

1.1 

1.0

.1

Aug.

14 

13 

13 

13 

14

14 

14 

14 

14 

14

14 

13 

13 

13 

13

13 

13 

5.0 

2.9 

2.4

2.2 

2.2 

1.8 

1.8

1.8

1.8 

1.6 

1.6 

1.4 

1.4 

1.1

Mean

1.05 

.63 

.89

-

3.81 

15.6 

40.4 

45. E 

21.2 

18.1 

13.8 

8.32 

1.01

14.1

Sept.

1.1 

1,1 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

l.Q 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.0 

1.0 

1.0

Runoff In 

acre-feet

65 

, 38 

55

-

234 

864 

2,480 

2,690 

1,310 

1,070 

851 

512 

60

10,230

Mote.- Combined discharge of San Jaointo River and diversions is the combined discharge of San 

Jaointo River near San Jsclnto, Lake Hemet Water Co.'s upper canal near San Jaointo, take Hemet 

Water Cp. 'a lower canal near San Jaointo, and Palrview Water Co. 'a pipe line near San Jaclnto.
SANTA ANA RIVER BASIN 79

San Jacinto River near Elslnore, Calif.

Location.- Water-stage recorder, lat. 33°39'45", long. 117"17<45", near east line of see.

 D, '1(1 . 6 S., R. 4 W., 2 miles east of Elsinore and 2.2 miles upstream from Elsinore 

Lake {low-water stage)r Altitude of gage, about 1,270 feet.

Drainage area.- 717 square miles.

Records available.- January 1916 to September 1949.

Average discharge.- 33 years, 16.7 second-feet.

Extremes.- Maximum discharge during year, 0.7 second-foot Apr. 28 (gage height, 2.53 

feet); no flow for several months.

1916-49: Maximum discharge, 16,000 s,econd-feet-Feb. 17, 1987 (gage height,.11. 8 

feet), by slope-area method no flow for several months in most years.

Remarks.- Records good. Storage and diversions above station for irrigation. Regula-

 tio'n since 1928 by Railroad Canyon Dam (reservoir capacity, 12,000 acre-feet), 2 miles 

above station.

Discharge, In second-feet, water year October 1948 to September 1949

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 

B7 

28 

29 

30 

31

dot. Nov. Dec. Jan. Feb.

0 

.01 

.01 

.02 

.04

.03 

.05 

.10 

.07 

.06

.06 

.06 

.05 

.04 

.04

.04 

.05 

.05 

.05 

.05

.04 

.05 

.06 

.06 

.07

.09 

.16 

.16

Month

OCto 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter yea* 1948-49 .......................

Mar.

0.15 

.11 

.11 

.12 

.18

.18 

.15 

.14 

.12 

.11

.11 

.10 

.10 

.10 

.10

.OS 

.10 

.10 

.10 

.10

.10 

.09 

.12 

.14 

.12

.10 

.08 

.09 

.10 

.09 

.09

Apr.

0.10 

.10 

.11 

.09 

.08

.07 

.08 

.08

.07 

.06

.04 

.03 

.02 

.01 

.01

.01 

0 

0 

0 

.01

.01 

0 

0 

0 

0

0 

0 

.12 

.08 

0

Secondfoot-daya

0

0 

o

13.97

0 

1.57 

3.49

1.18 

0 

0 - o

0 

0

6.24

May

Maximum

0 

0 

0

.5

0 

.16 

.18 

.12

0 

0 

0 

0 

0

-IB

June

Minimum

July

0 

0 

0

0

0 

0

.oe

0 

0 

0 

0 

0 

0

o

AUg.

Mean

0 

0 

0

.038

0 

,056 

.113 

.039 

O 

0 

0

o

0

-O17

Sept.

Runoff In 

acre-feet

0 

0 

0

28

0 

3.1 

6.9 

2.3 

0 

0 

0 

0 

0

IP
8 0 SANTA ANA RIVER BASIN

Elsinore Lake at Elsinore, Calif.

Location.- Staff gage, lat. 33MOJ.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 1949.

Extremes.- Maximum elevation recorded during year, 1,234.0 feet Oct. 7; minimum recorded,

 '~"l,yyUA4 feet Sept. 29.

"1915-49': Maximum elevation recorded, 1,265.6 feet Mar. 20-25, 1916, during period 

of overflow; maximum recorded since cessation of overflow in June 1917, I,2£r9.8 feet 

May 11-20, 1922; minimum recorded 1,226.6 feet in November and December 1936.

Remarks.- Elsinore Lake overflows into Temescal Creek, which is its outlet, onl^ during

 and 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 Water-Supply 

Paper 961.

Elevation, in feet, 1948-49

Oct.

Nov.

Dec.

7

22

26

5

9

19

3

16

31

1,234.0

1,233.9

1.233.S

1,233.8

1,233.7

1,233.6

1,233.5

1,233.5

1,233.6

Jan.

Feb.

Mar.

Apr.

14

26

11

25

11

22

25

7

19

1,233.8

1,233.9

1,233.9

1,233.9

1,233.8

1,233.8

1,233.8

1,233.6

1,233.5

Apr.

Hay

June

July

28

10

24

7

21

23

5

13

20

1,233

1,233

1,233

1,232

1,232

1,232

1,232

1,231

1,231

4

1

0

7

4

4

1

B

8

Aug. 2

11

16

31

Sect . 6

21

29

1,231.6

1,231.3

1,231.3

1,230.9

1,230.8

1,230.5

1,230.4
SANTA ANA RIVER BASIN 

Temescal Creek near Corona, Calif.

81

Location.- Water-stage recorder, lat. 33°50'30", long. 117°30'45", in El Sobrante de San 

Jacinto Grant, 0.5 mile Upstream from Blue Diamond Quarry and 4 miles southeast of 

Corona, Riverside County. Altitude of gage, about 730 feet.

Records .available. - January 1929 to September 1949. 

Ave.rage discharge.- 20 years, 5.17 second-feet.

Extremes.- Maximum discharge during year, 0.4 second-foot Jan. 27'(gage height, 3.51 feet); 

no flow during most of year.

1929-49: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow during parts of some years.

Remarks.- Records poor. Many diversions and several storage reservoirs in basin above this 

station, principally above Elsinore Lake.

Cooperation.- One discharge measurement furnished by Orange County Flood Control District, 

tnrougn J. A. Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0 

0 

O 

1 

O

0 

0 

0 

0

o

0

0 

0

o 

o

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

.05 

0 

0 

0 

0

Feb.

0 

.03 

.06

.1 

.09

d.02

a. 03

d.02 

d.02 

d.Ol

d.Ol 

0 

0

0 

0

o

0 

0 

0 

0

0

o

0 

d.Ol

0

d.Ol 

0

Month

Octo 

Hove 

Dece

ca

janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0 

0 

0 

O 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

d.Ol

o

d.Ol

d.Ol 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0

o

0

1.4

.05

.41 

.03 

0 

0 

0 

0 

0 

0

.49

May

Maximum

0 

0 

0

.6

.05 

.1 

.01 

0 

0 

0 

0 

0o 

.1

June July

Minimum

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.004

.002 

.015 

.001 

O 

O 

0

o

0

0

.001

Sept.

'

Runoff, in 

acre-feet

0 

0

0

2.8

.1 

.8 

.1 

0 

0 

0 

0 

0 

0

1.0

<3 Doubtful gage-height reoord; discharge computed on basis of 2 discharge measurements and appearance of gage-height record.

Bautista Creek near Hemet, Calif.

Location.- Water-stage recorder-, lat. 33°41'40", long. 116°51'00", in NE^SWij sec. 35,

 T. b"i>., R. IE., 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 1949..

Extremes.- No flow during year.

 T937-49: Maximum discharge, 10 second-feet (estimated) Dec. 5, 1947, Feb. 5, 1948 

(gage height, 2.83 feet!

Remarks.- No flow since Mar^25, 1948. One diversion above station for irrigation; no

 water -diverted this year/ The following are the summary figures for the calendar year 

1948: total second-foot days, 1.63; maximum daily discharge, 0.9; minimum daily, 0; 

mean, 0.004; runoff in acre-feet, 3.3.
82 SANTA ANA RIVER BASIN 

San Antonio Creek near Claremont, Calif.

Location,- Water-stage recorder and broad-cr&sted weir, lat. 34°12'50", long. 117°40 I 00", 

IrTNfffSEt sec. 36, T. 2 N., R. 8 W., 0.5 mile upstream from Southern California Edison 

Co, 1 s Sierra power plant and 8 miles northeast of Claremont. Altitude of ga'ge, about 

3,400 feet.

Drainage area..- 16.9 square miles.

Records available.- .March 1901 to September 1949.

Average discharge.- 32 years (1917-49), 10.8 second-feet. Average combined discharge of 

creeK ana conauit, 32 years (1917-49), 23.7 second-feet.

Extremes.- Maximum discharge during year, 10 second-feet Apr. 20 (gage height, 1.32 

reel;;; minimum daily discharge, 0.1 second-foot for several days in August and 

September.

1917-49: Maximum discharge, 21,400 second-feet Mar. 2, 1938, by slope-area and 

rainfall-runoff studies; minimum daily discharge, less than 0.1 second-foot for 

several days in October 1934.

Remarks.- Records fair. Southern California Edison Co.'S conduit diverts water above 

station (see p. 84).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.2 

.2

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.4 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Nov.

0.

!s

Dec.

0.3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.4

.4 

.6 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.4

.5 

.6 

.6 

.6 

.5 

.5

Jan.

0.4 

.4 

.4 

.5 

.4

.4 

..4 

.5 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.5 

.6 

1.3

1.0 

1.0 

.9 

.8 

.7

.7 

.7 

.6 

.6 

.6 

.6

Feb.

0.6 

.6 

.6 

.6 

.6

.6 

.7 

.7 

.7 

.6

.7 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.6 

.6

.8 

.8 

.8 

.9 

1.0

1.1 

1.2 

1.2

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

MRV

June 

July 

Augu 

Sept

Ha

lendaf year 1948

'

ter year 1948-49 .......................

Mar.

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

1.0 

1.0 

1.0 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.2 

1.2 

1.2 

1.2 

1.1

1.0 

1.0 

1.0 

1.0

1.1 

1.1

Apr.

1.0 

1.0 

.9 

.9 

.9

.9 

.9 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.1 

1.1

1.1 

1.0 1.1

2.1 

2.3

1.1 

1.0 

1.0 

.9 

.9

.9

.9 

.8 

. .8 

.8

Second* 

foot -days

11.1 

11.9 

13.6

227.7

19.3 

21.0 

32.6 

31.4 

 22.3 

13.4 

8.6 

5.5 

4.8

195.5

May

0.7 

.7 

.7 

.7

.6

.6 

.6 

.6 

.6 

.6

.6.6

.7 

.7 

.8

.9 

.9 

1.0 

1.0 

1.0

1.1

1.0 

.8 

.7 

.6

.6 

.6 

.5 

.6 

.6 

.6

Maximum

0.5 

.5 

.6

2.1

1.3 

1.2 

1.2 

2.3 

1.1 

.6 

.4 

.2 

.2

2.3

June

0.6 

.6 

.5 

.5

.5

.5 

.5 

.5 

.4 

.4

.5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.4 

.5 

.6 

.5

Minimum

July

0.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2

.3 

.3

.3

.3 

.3 

.3 

.3 

.3 

.3

0.2 

.3 

.3

.2

.4 

.6 

.9 

.8 

.5 

.3 

.2 

.1 

.1

.1

Aug.

0.2 

.2 

.2 

.2 

.2

.Z 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

:} .1 .1.1

.1.2 

.2 

.2 

,2 

.2

Mean

0.36 

.40 

.44

.62

,62 

.75 

1.05 

1.05 

.72 

.45 

.23 

.IS 

.16

.54

Sept.

0.8 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 . 2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

Runoff In 

acre-feet

22 

24 

27

452

38 

42 

65 

62 

44 

27 

17 

11 

9,5

386

Peak discharge (base, 10 sec.-ft.).- Ho peak above base.
SANTA ANA RIVER BASIN 83

Combined discharge, in second-feet, of San Antonio Creek and Southern California Bdison Co.'s 

conduit near Claremont, Calif., water year October 1948 to September 1949

3ay

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oqt,

5.5 

5.5 

5.5 

5.5 

5.6

5.6 

5.6 

5.6 

5,5 

5.5

5.7 

5.7 

5.7 

5.7 

5.5

5.7 

7.1 

6.1 

6.0 

6.4

6.3 

5.2 

5.7 

5.7 

6.0

6.0 

6.0 

6.0 

6.0 

6.0 

6.0

Nov.

5.7 

5.7 

5.7 

5.7 

5.7

5.7 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5,4 

5.5

5.5 

5.5 

5,4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5,3 

5.3 

5,3 

5.3

Dec.

5.3 

5.4

5.4 

5.4 

9,4

5.4 

5,4 

5.4 

5.4 

5.4

5.5 

5.5 

5.5 

5.5

5.4

5,4 

6.5 

5.4 

5.4 

5.4

5.4 

5.4 

5.3 

5.3

5.4

5.5 

6.2 

5.9

5.6 

5.5 

5.5

Jan.

5.4 

5.4 

5.4 

5.5

5.4

5,4 

5.4 

5.5 

5.6

5.6

5.6 

5.6 

5.6 

5.6 

5.6

5,6 

5.5 

5.5 

5.6 

7.5

6.6 

6.6 

6.5 

6.4 

6.0

6.0 

6.0 

5.9

5.9 

5.9 

5.9

Feb.

5.9 

5.9 

5.9 

5.9 

5.9

5.9 

6,0 

6.0 

6.0 

5.9

6.0 

6.7 

6.4 

6.4 

6.3

6,3 

6,2 

6.2 

6.2

6.2

6.4 

6.4 

6.7 

6.8

7.3 

7.6 

7.6

Month

Goto 

Hove 

Deee

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber....................... ..............

raber. ...................................

lendar year 1948

h.......................................

ter year 1948-49 .......................

Mar.

7.5 

7.4 

7.4 

7.4 

8.0

7.4 

7.4 

7.3 

7.3 

7.6

8.3 

8.3 

8.3 

8.4 

8.4

8.4 

8.7 

8.7 

9.5 

8.7

8.8 

9.6 

9.6 

9.6 

9.5

9. -4 

9.4 

9.6 

9.6 

9.8 

10

Apr.

10 

10 

10 

10 

11

11 

11 

11 

11 

11

11 

11 

12 

12 

12

12 

13 

13 

14 

14

13 

13 

14 

16 

17

17 

17

18 

19 

18

Secondfoot -days

180.9 

163.7 

170.4

3,081.9

180.0 

177.9 

265.3 

392 

480 

E82.7 

207,4 

173.8 

154.8

2,828.9

May

IS

19 

19 

19 

18

18 

18 

18 

17 

17

17 

16 

16 

16 

16

16 

16 

15 

16 

14

14 

13 

13 

12 

13

13 

13 

12 

13 

12 

13

Maximum

7.1 

5.7 

6.5

18

7.5 

7.6 

10 

19 

19 

13 

8.1 

5.9 

5.2

19

June

13 

11 

10 

1Z 

12

10 

10 

10 

10 

10

10 

10 

10 

10 

9.4

9.3 

9.3 

9,0 

9.0 

8.8

8,7 

8.3 

8.1 

8.1 

7.4

8.1 

8.4 

7,9 

7.0 

7.9

July

7,6 

8,1 

7.2 

7.2 

7.8

7,7 

7.7 

7. .7 

7.4 

7.3

6.8 

6.6 

6.6 

6.6 

6.6

6.6 

6.6 

6,2 

6.2

6.2

6.2

6.2 

6.3 

6.3 

6.3

5.9 

5.9 

5.9 

5.9 

5.9 

5.9

Minimum

5.5 

5.3 

5.3

5.3

5.4 

5,9 7,3" 

10 

12 

7,0 

5.9 

5.2 

5.1

5.1

Aug.

5.8 

5.8 

5,8 

5.8 

5.7

5.7 

5.7 

5.7 

5.7 

5.7

5.7 

5.7 

5.5

5.5 

5.5

5.5 

5.9 

5.9

5.9 

5.5

5.5 

5,5 

5.5 

5.5 

5.5

5.5 

5.4 

5.4 

5.4 

5.4 

5.2

Mean

5.84 

5.46 

5. -50

8.42

5.81 

6.35 

8.56 

13.1 

15.5 

9.42 

6.69 

5.61 

5.16

7.75

Sept.

5.2 

5.2 

5.2 

5.2 

5.2

5,2 

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

5.1 

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

5.1 

5.2 

5.2

Runoff in 

acre-feet

359 

325 

338

6,110

357 

353 

526 

778 

952 

561 

411 

345 

307

5,610
84 SANTA ANA RIVER BASIN

Southern California Edison CO.'B conduit near Claremont,'Calif.

Location,- At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", long 

Il7°4U'15", in NWtSEtr 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 1949. 

Average discharge.- 32 years, 12.9 second-feet.

Remarks.- Conduit diverts water from San Antonio Creek in SE£ sec. 25, T. 2 N,, R. 8W., 

1 mile upstream from gaging station on San Antonio Creek near Claremont. Water is 

used for power development and then for irrigation. Discharge is computed from record of kilowatt output of Sierra power plant. \

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3

5.1

5.3 

6.7 

5.6 

5.6 

5.9

5.8 

5.8 

5.3 

5.3

5.6

5.6 

5.6 

5.6 

5.6 

5.6 

5.6

Nov.

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

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

Dec.

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 

5.9 

5.0 

5.0 

5.0

5.0 

5.0 

5.0 

5.0

5.0

5.0 

5.6 

5.3 

5.0 

5.0 

5.0

Jan.

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 

S.O 

5.0 

5.0 

6.2

5.6 

5.6 

5.6 

5.6 

5.3

5.3 

5.3 

5.3 

5.3 

5.3 

5.3

Feb.

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.9 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5,6

5.6 

5.6 

5.9 

5.9 

5.9

6.E 

6.4 

6.4

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948-49 .......... .............

Mar.

6.4 

6.4

6.4 

6.4 

7.0

6.4 

6.4 

6.4 

6.4 

6.7

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

"7.6 

7.6 

8.4

7.6

7.6 

8.4 

8.4 

8.4 

8.4

6.4 

8.4 

8.6 

8.6 

8.7 

9.2

Apr.

9.2 

9.2 

9.2 

9,2 

9.8

9.8 

9.8 

9.8 

10 

10

10 

10 

11 

11 

11

11 

12 

12 

12 

12

12 

12 

13 

15 

16

16 

16 

17 

18 

17

Secondfoot-days

169.8 

151.8 

156.8

2,848.5

160.7 

156.9 

233.0 

360.0 

450 

272.8 

198.8 

168.3 

150.0

2,628.9

nay

17 

18 

18 

18 

17

17 

17 

17 

16 

16

16 

15 

15

15 

15

15 

15, 

14 

15 

13

13 

12 

12 

11 

12

12 

12 

12 

12 

11 

12

Maximum

6.7 

5.3 

5.9

16

6.2 

6.4 

9.2 

18 

18 

12 

7.7 

5.7 

5.0

18

June

12

10 

10

11 

11

10 

10 

10

10 

10

10 

10 

10 

9.5 

8.9

8.9 

8.9 

8.6 

8.6 

8.4

8.3 

8.0 

7.8 

7.8

7.1

7.8 

8.0 

7.4 

7.4 

7.4

Minimum

July

7.2 

7.7 

6.8 

6.8 

7.4

7.4 

7.4 

7.4 

7.1 

7.0

6.6 

6.4 

6.4

6.4 

6.4

6.4 

6.4 

6.0 

6.0 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

5.6 

5.6 

5.6 

5.6 

5.6 

5.6

5.1 

5.0 

5.0

5.0

5.0 

5.3 

6.4 

9.2 

11 

7.1 

5.6 

5.0 

5.0

5.0

Aug.

5.6 

5.6 

5.6 

5.6 

5.5

5.5 

5.5 

5.5 

5.5 

5,5

5.5 

5.5 

5.3

5.3 

5.3

5.3 

5.7 

5.7 

5.7 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.2 

5.2 

5.2 

5.2 

5.0

Mean

5.48 

5.06 

5.06

7.78

s"T;e

5.60 

7.52 

12.00 

14.5 

9.09 

6.41 

5.43 

5.00

7.20

Sept.

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

Runoff in 

acre-feet

337 

301 

311

5,650

1 3f9- 

311 

462 

714 

893 

541 

394 

334 

298

5,220
SANTA ANA RIVER BASIN 85

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

Location.- Staff gage, lat. 33°47'10", long. 11?°43'3S", 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 1949.

Average runoff.- 18 years, 14,980 acre-feet per year (20.7 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 £>ecember 1931. 

Capacity and area ratings for the reservoir are dated December 1930. Capacity of 

reservoir at spillway level (gage height, 290.0 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 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 1948 to September 1949

Month

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

Calendar year 1948.

May.......... >.......

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

Water year 1948-49.

Santiago Reservolrt

Qage 

height 

(feet)

740.7 

738.8 

736.4 

736.0

-

737.3 

739.0 

740.3 

739.7 

738.5 

733.9 

727.9 

726.2 

723.9

-

Contents 

(acrefeet)

4,850 

4,450 

3,960 

3,880

-

4,140 

4,490 

4,770 

4,640 

4,380 . 

3,510 

2,590 

2,360 

2,070

-

Change 

In 

contents (acrefeet)

-400 

-490 

-80

-7,270

+260 

+350 

+280 

-130 

-260 

-870 

-920 

-230 

-290

-2,780

Draft 

(acrefeet)

483 

579 

214

8,647

13 

41 

15 

254 

458 

1,188 

1,258 

403 

430

5,336

Evaporation 

(acrefeet)

70 

95 

37

1,432

47 

31 

58 

85 

93 

108 

96 

89 

76

885

Spill, 

waste and 

leakage 

(acrefeet)

0 

0 

O

O

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

153

184 

171

2,809

320 

422 

353 

209 

291 

426 

434 

262 

216

3,441

t At 5 p.m. on last day of month 

947809 O - 51 - 7
86 SANTA ANA RIVER BASIN

Santiago Creek near Villa Park, Calif.

Location.- Water-stage recorder and concrete contrdl, lat. 33°49 ! 10't , long. ll?°46'30", 

in sw't 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.

Records available.- June 1920 to September 1949.

Average discharge.- 29 years, 8.64 second-feet.

Extremes.- Maximum discharge during year, 407 second-feet Dec. 26 (gage height, 3.24 

reet)'; no flow during several months.

1920-49: 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 poor. Diversions above station by Irvine Co. and Serrano and Carpenter 

irrigation Districts. Plow completely regulated by Santiago Reservoir.

Discharge, in second-feet, water year October 1948 to September'1949

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.

Goto 

Move

Deoe

Ca

Janu 

Febt* 

Hare 

Apr! 

MA'tr

June 

July 

Augu 

Sept

Wa

Nov. Dec.

0 

0 

O 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

3.1

.7 

.1 

.1

.1 

.4 

.3 

.1 

.1

36 

13 

a.l 

0 

0 

0

Month

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

a. 3 

3.1 

a. 3 

a. 3

a. 3 

a. 3 

a. 2 

a. 2 

.6

.2 

1.1 

.4 

.2 

.1

.1 

.1 

.1

.1 

.1 

.1

Feb.

0.1

.1

.5 

.5 

.2

.2 

7.8 

1.0 

a. 4 

a. 2

1.2 

1.7 

.6 

.5 

.4

.3 

.2 

.1 

.1 

.1

0 

0 

.2 

a. 7 

al

a. 2

al 

1.0

lendar year 1948

ter year 1948-49 .......................

Mar.

0.2 

.2 

.2

24 

4.0

a. 4 

.2 

.2 

.2 

.2

6.7 

.7 

.6 

.6

.5

.4 

.4 

.3 

.3 

.3

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1 

.1

Apr.

0.1

.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 

0 

0 

0

Secondfoot -days

0 

0

54.1

55.2

8.2 

20.3 

42.1 

1.1 

0 

0 

0 

0 

0

125.8

nay

Maximum

0 

0 

36

36

3.1 

7.8 

24 

.1 

0 

0 

0 

0 

0

33

June .July

Minimum

0 

0 

0

0

0 

0 

.1 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

1.75

.15

.26 

.72 

1.36 

".04 

0 

0 

0 

0 

0

.34

Sept.

Runoff in 

aore-feet

0 

0 

107

109

16 

40 

84 

2.2 

0 

O 

0 

0

o

250

a No gage-height record; discharge computed on basis of 2 discharge measurements, fragmentary gageheight record, weather records, and probable discharge recession curves.
SANTA ANA RIVER BASIN 87

Santiago Creek at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33°46 I 10", long. 117 0 52'55", in Santiago de Santa

 Aha" Want, at end of Baker Street, Santa Ana, Orange County, 2,000 feet upstream from 

mouth. Altitude of gage, about 120 feet. Prior to June 1948 at datum 0.96 foot 

higher .

Records available.- January 1929 to September 1949. 

Average discharge.- 20 years, 6.76 second-feet.

Extremes.- Maximum discharge during year, 104 second-feet Dec. 17 (gage height, 3.41 feet);

 rib flow during most of year.

1929-49: 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 fair. Regulation by Santiago Reservoir. Diversions above station by

 Irvlhe 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. In 

current year it amounted to 60 acre-feet.

Coo eration.- Three discharge measurements furnished by Orange County Flood Control 

through J. A. Bradley, flood-control engineer.

Discharge, In seoond-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7a

9 

10

11 

12 

13 

14 

IS

16 

17 

IB 

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

O 

O 

0 

0 

0

0 

3.6 

0 

0 

0

0 

.3 

0 

0 

P

1.0 

2.0 

0 

0 

0 

0

Jan,

0 

0 

0 

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

Feb.

0 

0 

0 

0 

0

0 

.9 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0

Month

Oeto 

Hove

Dece

Ca

janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

5«Pt

Wa

lendar year 1946 

ary

St...................................... Gwbfer . . » .

ter yeari948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Q 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

3.8 

17

Apr.

8.4 

.2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0

Secondfoot -days

0 

0 

6.9

31.9

.4 

.9 

20,8 

8,6 

0 

0 

0 

0 

0

37.6

May

Maximum

0 

0 

3,6

10

.4 

.9 

17 

8.4 

0 

0 

0 

0 

0

17

June

-

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.22

.09

.01 

.03 

.67 

.29 

0 

0 

0 

0 

0

.10

Sept.

Runoff In 

acre-feet

0 

0 

14

63

.3 

1.8 

41 

17 

0 

0 

0 

0 

0

75
SAN GABRIEL RIVER BASIN

East Fork San Gabriel River near Camp Bonita, Calif.

Location.- Water-stage recorder, lat. 34°14'12", long. 117°48'30", in SEi sec. 22, T. 2 N., 

R. 9 w., 1,000 feet upstream from mouth of Graveyard Canyon, 2.5 miles upstream from 

confluence with West Fork, and 2.5 miles-west of Camp Bonita.

Records available.- December 1932 to September 1949. 

Average discharge'. - 16 years (1933-49), 84.9 second-feet.

Extremes.- Maximum discharge during year, 70 second-feet Apr. 24 (gage height, 9.75 feet); 

minimum daily, 6.3 second-feet Sept. 5-8.

1932-49: 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.

Cooiperatipa.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Heflger, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

1? 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

38 

29 

30 

31

Oct.

8.6 

9.0 

9.3 

9.6 

9.6

9.0 

7.9 

7.9 

8.2 

8.2

8.6 

9.3 

9.3 

9.3 

9.0

8.6 

8.6 

11 

11 

10

9.6 

9.0 

8.6 

9.0 

9.0

9.3 

9.3 

9.6 

9.6 

10 

10

Hov.

9.6 

9.6 

9.6 

9.6 

9.3

9.3 

9.3 

9.3 

9.3 

9.3

9.3 

9.3 

9.3

9.3 

9.3

9.3 

9.3 

9.3 

9.3 

9.3

9.3 

9.3 

9.3 

9.6 

9.6

10 

10 

10 

10 

10

Dec.

10 

10

11

12 

12

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11

*9 

17

14 

13

13

14 

15

14 

14

14 

22 

17 

16 

15 

14

Jan.

15

14 

12 

10 

9.6

n12 

12

14 

14

15 

16 

17 

17

16

15 

14 

14 

16 

33

26 

27 

26 

22 

20

18 

18

18 

17 

17 

17

Feb.

17

17 

18 

18 

18

18 

20 

20 

18

18

20 

23 

22 

21 

20

20 

20 

20 

21 

22

22 

23 

24 

29 

37

37 

40 

36

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr* 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

apy

ter year 1948-49 .......................

Mar.

33 

32 

32 

36 

39

36 

36 

35 

32 

32

43 

40 

40 

39 

39

39 

39

4Q 

44 

46

44 

44 

47 

44 

42

39 

39 

42 

40 

40 

42

Apr.

40 

40 

39 

37 

37

39 

39 

40 

42 

47

49 

52 

54 

61 

61

57 

57 

54 

54 

54

57

64 

64

64 

64

57 

57 

54 

54 

51

Seeondfoot-daya

285.0 

284.3 

407

7,327.4

522.6 

639 

1,215 

1,539 

1,117 

580 . 

348.7 

253.8 

219,3

7,410.7

May

49 

47 

47 

46 

46

42 

40 

37 

37 

37

37 

36 

36 

39 

37

36 

36 

36 

39 

36

33 

31 

29 

28 

29

29 

29 

29 

29 

28 

27

Maximum

11 

10 

22

133

33 

40 

47 

64 

49 

26 

16 

9.0 

9.0

64

June

26 

25 

24 

24 

24

23

23 

21 

21 

20

20

20 

20 

19

18

18 

18, 

18 

18 

18

17 

17 

16 

16 

16

16 

16 

16 

16 

16

July

16 

15 

14 

14 

14

13 

13 

12 

12 

12

12 

11 

11 

11 

11

10 

10 

10 

10 

10

10 

10 

9.6 

9.6 

9.6

10 

10 

10 

10 

9.6 

9.3

Minimum

7.9 

9.3 

10

6.9

9.6 

17 

32 

37 

27 

16 

9.3 

7.3 

6.3

6.3

Aug.

9.0

8.6 

6.6 

8.2 

8.6

8.2 

8.2 

8.6 

8.6 

9.0

9.0 

9.0 

8.6 

8.6 

8.6

8.6 

8.2 

8.2 

8.2 

8.3

8,2 

7.9

7,6 

7.6 

7.6

7,6 

7.3 

7.3 

7.3 

7.3 

7.5

Mean

9.19 

9.48 

13,1

20.0

16.9 

22.8 

39,2 

51.3 

36.0 

19.3 

11.2 

8.19 

7.31

20.3

Sept.

6.9 

6.9 

6.9

6.6 

6.3

6.3 

 6,3

6.3 

6.9 

7.3

7.3 

7.3 

7.3 

7.3 

7,3

7.3 

7.3 

7.3 

6.9 

6.9

7,3 

9.0 

8.2 

7.9 

7.9

8.2 

8.2 

7.9 

7.9 

7.9

Runoff in 

acre-feet

565 

564 

807

14,540

1,040 

1,270 

2,410 

3,050 

2,2?0 

1,150 

692 

503 

435

14,710
SAN GABRIEL RIVER BASIN 89

San Gabriel River near Azuaa, Calif.

Location.- Water-stage recorder, lat. 34°10'10", long* 117 D 53'16n , in SW£ sec. 13, T. 1 N., 

K. it) W., I mile downstream from Morris Dam and 3 miles northeast o'f Azusa. Altitude 

of gage, about 670 feet.

Drainage area.- 211 square miles.

Hecords available.- 1894 to September 1949.

Average discharge.- 53 years (1896-1949), 113 s.cond-feet. Average combined discharge of 

river ana diversions, adjusted for storage ar.l evaporation In Mor.ris Reservoir and 

San Gabriel River flood-control reservoirs No;. 1 and 2, 54 years (1895-1949), 162 second-feet.

Extremes.- Maximum discharge during year, 79 second-feet Oct. 27 (gage height, 1.16 feet); 

no now during most of year.

1894-1949: Maximum discharge, 65,700 second-feet Mar. 2, J.938, by computation of 

flow over spillway at Morris Dam; no flow for several months in each year 1894-1936, 

1940, 1941, 1947-1949.

Remarks.- Records good. Plow regulated by San Gabriel flood-control reservoirs Nos. 1 and 

fc, and by Morris Reservoir of Metropolitan Water District of Southern California Azusa 

Canal diverts water at upstream end of Morris Reservoir at a point about 3 miles above 

this station.

Cooperation.- Twenty-nine discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Jedger, chief engineer.

Revisions (water year).- W 961: 1941.

Discharge, in second-feet, water year October 1948- to September 1949

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.

O 

0 

0 

0 

0

0

o

0 

0 

0

o

0 

0

0

o 

o

0

o

0 

0

0 

0 

0 

0 

0

28 

61 

47 

38 

31 

28

Nov.

25 

24 

23 

22 

18

18 

18 

18 

18 

18

18 

18 

18 

18 

17

17 

17 

18 

18 

18

17. 

17 

17 

14 

.3

0 

0 

0 

0 

O

Dec. Jan.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May. 

June 

July 

Augu 

Sept

Wa

her ..........................

 her .........................

lender year 1943 

ary

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

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

ter year 1948-49 ............

Feb.

Secondfoot-days

233 

444.3 

0

7,313.9

0 

0 

90.2 

948

474 

0 

0 

0

o

2,089.5

Mar.

o

0 

0 

' 00 

0 

0

o

0 

0

0 

0 

0 

0 

0

0

o 

o

5.2 

0

0

o

0

o

0

0 

0

o

14 

42 

29

Apr.

26 

26 

26 

26 

24

22 

23 

22 

22 

22

23 

23 

23 

23

23

23 

23 

23 

23 

23

23 

28 

41 

41 

41

41 

41 

41 

41 

41

Maximum

61 

25 

0

1,170

0 

0 

42 

41 

41 

0 

0 

0 

0

61

May

41 

39 

39 

38 

38

37 

37 

38 

38 

38

38 

37 

16 

0 

0

0 

0 

0 

0 

O

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

UiniBum

0 

0 

0

0

0 

0 

0 

22 

0 

0 

O 

O 

0

0

June

Usan

7.5 

14.8 

0

20.0

0 

0 

2.91 

28.3 

15.3 

0 

0 

O 

0

5.72

July Aug.

femoff in

San Gabriel 

River

462 

881 

0

14,510

0 

0 

179 

1,680 

940 

0 

0 

0 

O

4,140

Sept.

snne-feBt

San oabriel River and,. 

Azusa Canalt

853 

896 

1,580

26,840

2,620 

2, .900 

4,700 

4,300 

3,090 

1,630 

9O8 

684 

649

24,810

t Combined runoff of San Gabriel River and Azusa Canal, adjusted for storage and evaporation in

Morris Reservoir and San Gabriel River flood-control reservoirs 1 and 2, using record furnished by 

Metropolitan Water District of Southern California. These figures of runoff are equivalent to combined records of San labriel River and Southern California Edison Co.'s canal as published from 1894 

to 1933.
90 SAN GABRIEL RIVER BASIN

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

Location.- Water-stage recorder, lat. 34°06'40", long. llVSS'gO", at stilling basin of 

outlet of Santa Fe Dam, 0.3 mile north of Arrow Highway and 1.5 miles north of Baldwin 

Park, Los Angeles County. Datum of gage is 400.00 feet above mean sea level (levels by 

Corps of Engineers).

Drainage area.- 231 square miles.

Records available.- October 1942 to September 1949.

Extremes.- No flow during year.

1932-49: Maximum discharge, 6,700 second-feet Jan. 24, 1943; no flow during several 

months of each year.

Remarks.- No flow since June 8, 1948. Plow regulated by San Gabriel flood-control reservoirs Nos. 1 and 2, by Morris Reservoir of Metropolitan Water District of Southern 

California, and by Santa Pe flood-control reservoir. Diversions for power and irrigation, and for spreading to ground water in San Gabriel Basin upstream and also in Rio 

Hondo Basin downstream. Records include water diverted from outlet basin below Santa 

Fe Dam to Rio Hondo, as shown in monthly table.

Cooperation.- Gage-height record furnished by Corps of Engineers, and many.observations of. 

no flow furnished by Los Angeles County Flood Control District, through H. E. Hedger, 

chief engineer.

Monthly discharge, in second-feet, water year October 1948 to September1 1949

Month

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

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

Water year 1948-49. .........

Secondfoot-days

0

0

Maximum

809

0

0

Minimum

0

0

Mean

0

0

Runoff

San 

Gabriel 

RiVer

0

0

in aore-feet

Diversion to 

Rio HondoT

0

0

t Records furnished "by Los Angeles County Flood Control District, through H. E. Hedger. chief 

engineer.
SAN GABRIEL RIVER BASIN 

San Gabriel River at Pico, Calif.

91

location.- Water-stage recorder, lat. 34°00'20", long. 118°04'OS", in Paso De Bartolo 

Grant, at Beverly Boulevard Bridge, 0.5 mile east of Pico, Los Angeles County. 

Altitude of gage, about 180 feet.

Records available.- October 1928 to September 1949. 

Average discharge.- 21 years, 53,4 second-feet.

Extremes.- Maximum discharge during year, 144 second-feet Jan. 20 (gage height, 6.57 feet); 

no now during most of year.

1928-49: Maximum discharge, 22,700 second-feet Mar. 2, 1938; no flow for periods 

each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. K." Hedger, chief engineer.

Revisions (water year).- W 881: 1937.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oct. Nov. Dec,

0 

o 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 .

0 

3.7 

22 

16 

16

18 

20 

20 

18 

18

19 

26 

21 

20 

20 

20

Jan.

20 

21 

20 

11 

11

11 

16 

20 

23 

22

27 

SB 

30 

29 

28

28 

29 

31 

32 

77

36 

31 

32 

30 

32

29 

30 

E9 

31 

32 

32

Feb.

32 

32 

36 

32 

32

30 '40 

38 

30 

33

33 

35 

32 

30 

31

30 

31 

31 

31 

33

33 

33 

35 

33 

28

30 

33 

30

Month

Oeto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 19*8 , .

St......................................

ter year 1948-49 .......................

Mar.

30 

32 

33 

34 

41

35 

32 

33 

33 

34

37 

24 

24 

26 

32

30 

29 

31 

26 

2S

30 

31 

32 

33 

33

37 

37 

41 

39 

33 

32

Apr.

32 

31 

32 

26 

24

15 

8.5 

.8 

.9 

.7

.1 

.7 

.0 

.1 

4.5

3.8 

3.1 

1.5 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -day s

0 

0 

277.7

3,462.4

858 

907 

1,002 

217.7 

0 

0 

0 

0 

0

3,262.4

May

Maximum

0 

0 

26

48

77 

40 

41 

32 

0 

0 

0 

0 

0

77

June July

Minimum

0 

0 

0

0

11

2S 

24 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

8.96

9.46

27.7 

32.4 

32.3 

7.26 

0 

0 

0 

0 

0

8,94

Sept.

Runoff In 

acre-feet

0 

0 

551

6,870

1,700 

1,800 

1,990 

432 

0 

0 

0 

0 

0

6,470

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

Location.- Water-stage recorder, lat. 33°48'40", long. 118°05'-30", in Los Alamitos Grant,

 ' at 'Spring Street Bridge, 1.5 miles west of Los Alamitos, Orange County. Altitude of

gage, about 32 feet. , . , 

Records available.- October 1936 to September 1949 in reports of Geological Survey;

 192V-'36' In files of Los Angeles County Flood Control District. 

Average discharge.- 22 years, 32.1 second-feet. 

Extremes.- no now during year.

 1936-49: 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. 

'Cobjteratlon.- Records furnished by Los Angeles County Flood Control District, through

H. K. Heager, chief engineer. 
92 SAN GABRIEL RIVER BASIN

West Pork San Oabriel River at Camp Rincon, Calif.

Location.- Water-stage recorder, lat. 34°14'30", long. 117°51'50", near center of sec. 19, 

T. a N., R. 9 W., 0.2 mile upstream from Camp Rincon, 0.5 mile downstream from North 

Pork San Oabriel River, and 6 miles downstream from San Gabriel dam No. t.

Drainage area.- 102 square miles.

Records available.- October 1927 to September 1949.

Average discharge.- 22 years, 74.8 second-feet.

Extremes.- Maximum discharge during year, ?8 second-feet Jan. 20 (gage height, 7.79 feet); 

minimum daily,.2.3 second-feet Sept. 30.

1927-49: Maximum discharge, 34,000 second-feet (estimated) Mar. 2, 1938; no flow at 

times in 1928, 1929.

Remarks.- Flow partly regulated by San Gabriel dam No. 2, 6 miles above station.

Cooperation.- Records furnished by Los Angeles--County Flood Control District, through 

H. E' Meager, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.2 

4.2 

4.0 

4.0 

3.8

3.8 

3.5 

3.5 

3.8

4.0

4.2 

4.5 

4.5 

4.8 

4.8

5.0 

5.0 

6.0 

5.8 

5.5

5.0 

4.8 

4.8 

4.5 

4.5

4.5 

4.5 

4.8 

5.0 

5.2 

5.2

Nov.

5.2 

5.2 

5.2 

5.0 

4.5

4.5 

4.8 

4.8 

4,8 

5.0

5.0 

5.0 

5.0 

5.0 

' 5.0

5.2 

5.2 

5.2 

5.2 

5.2

5.2 

5.2 

5.2 

5.5 

5.8

5.8 

5.8 

5.8 

5.8 

5.8

Dec.

5.8 

5.8 

6.6 

8.2 

7.3

7.0 

7.0 

6.6 

6.6 

6.6

6.6 

6.6 

6.6 

6.6 

6.6

7.0 

22 

15 

12

10

9.7 

11 

11 

11 

9.7

10 

32 

21 

18 

15 

14

Jan.

14 

12 

11 

11 

11

9.7 

9.7 

9.7 

13 

12

13 

13 

14 

17 

15

13 

13 

13 

14 

55

26 

26 

29 

24 

20

19 

17 

15 

15 

15 

15

Feb.

14 

14 

16 

15 

15

15 

16 

16 

15 

15

19 

27 

£3 

20 

19

18 

18 

19 

22 

22

21 

20 

22 

26 

30

28 

35 

29

MOnth

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

27 

26 

28 

31 

38

35 

33 

30 

27 

26

36 

29 

27 

27 

27

26 

26 

26 

26 

28

26 

25 

24 

23 

23

23 

23 

23 

22 

21 

24

Apr.

Secondfoot-days

141.7 

155.9 

328.9

5,822.9

514.1 

569 

836 

605 

677 

519 

373.3 

360.3 

218.5

5,298.7

23 

22 

22 

21 

20

20 

20 

21 

20 

20

20 

20 

21 

21 

22

22 

22 

22 

22 

20

19 

18 

17 

17 

17

16 

15 

16 

25 

24

May

23 

22 

22 

22 

20

19 

19 

19 

19 

19

19 

18 

19 

21 

23

23 

23 

23

26 

27

26 

24 

24 

22 

22

22 

21 

22 

23 

23 

22

Maximum

6.0 

5.8 

32

135

55 

35 

38 

25 

27 

22 

17 

13 

12

55

June

22 

21

20 

19 

19

18 

18 

18 

17 

17

17 

17 

16 

16 

16

as

18 

18 

17 

17

16 

16 

16 

16 

16

17 

17 

17 

17 

15

July

14 

13 

12 

12

11

11 

11 

11 

11 

10

9.7 

9.7 

9.2 

9.7 

12

12 

12 

11 

11 

11

12 

17 

14 

13 

14

14 

14 

13 

13 

13 

13

Minimum

3.5 

4.5 

5.8

3.0

9.7 

14 

21 

15 

18 

15 

9.2 

8.6 

2.3

2.3

Aug.

13 

13 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

11 

13 

13 

12 

12

12 

12 . 11 ' 

11

11

11 

11 

10 

10 

9.7 

8.6

Mean

4.57 

5.20 

10.6

15.9

16.6 

20.3 

27.0 

20.2 

21.8 

17.3 

12,0 

11.6 

7.28

14.5

Sept.

9.0 

12 

12 

12 

11

9.7 

8.2 

7.9 

7.9 

7.9

7.9 

7.9 

7.6 

7.3

7.4

8.9 

8.9 

8.9 

8.6 

8.2

7.9 

6.2 

3.8 

3.4 

3.0

2.9 

2.8 

4.2 

2.8 

2.3

Runoff in 

acrs-fest

281 

309 

652

11,540

1,020 

1,130 

1,660 

1,200 

1,340 1,030' 

740 

715 

433

10,510
SAN GABRIEL RIVER BASIN 95 

Rogers Creek near Azusa, Calif.

Location.- Water-stage recorder, lat. 34 0 09'55", long. 117°54'20", in NW^NW^ sec-. 23, T. 

1 w., K. 10 W., 0.5 mile upstream from mouth and 2.5 miles north of Azusa. Altitude 

of gage, about 800 feet.

Drainage area.- 6.4 square miles.

Records available.- May 1916 to September 1917 (discharge measurements only), October 191' 

to September 1949.

Average discharge.- 32 years (1917-49), 3.22 second-feet.

Extremes.- Maximum discharge during year, 22 second-feet Jan. 20 (gage height, 3.22 feet); 

no flow during several months.

1917-49: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow during 

parts of each year.

Remarks.- Records fair. One small diversion above station for irrigation.

Cooperation.- Five discharge measurements furnished by Los Angeles County Flood Control 

bistrict, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.2 

.7 

.3 

.2

.2 

.3 

.4 

.3 

.2

.3 

1.8 

.7 

.3 

.2 

.2

Jan.

0.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.3 

.3

.4 

.4 

.3 

1.3 

1.0

.7 

.5 

.5 

.7 

12

3.9 

3.1 

3.4 

2.3 

1.8

1.4 

1.2 

1.0 

.9 

.7 

.7

Feb.

0.7 

.6 

.8 

.7 

.6

.5 

1.0 

1.1 

.7 

.7

1.4 

2.Q 

1.4 

1.2 

1.1

1.0 

.9 

.8 

.7 

.7

.7 

.7 

.6 

1.3 

2. 5

2.1 

4.8 

3.4

Month

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mai«.

2.7 

Z.3 

2.3 

3.Z 

4.6

3.1 

2.9 

2.3 

2.0 

2.0

4.8 

3.1 

2.5 

Z.3

2.2

1.8 

1.5 

1.4 

1.5 

1.8

1.4

1.3 

1.2 

1.0 

.9

.8 

.8 

.8 

.8 

.8 

.8

Apr.

0.8 

.7 

.7 

.6 

.5

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.4

.4 

' .4

.5 

.5 

.5

.4

.3 

.3 

.3 

.2

.1 

.2

.1 

.1 

.1

Secondfoot -days

0 

0 . 

6.3

92.11

40.5 

34.7 

60.9 

12.1 

3.90 

.28 

0 

0 

0

158.68

May

0.1 

.1 

.1 

.1 

.1

.1 

, e.03

.1 

.1

.1 

.1 

.5 

.7 

.5

.2

.1 

.1 

.1

1 e.03

!i .1 .1

Maximum

0 

0 

1.8

4.9

12 

4 8 

4 8 

8

7 

1 

0

o

0

12

June

0.1 

.1

I e.02

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

.1

.5 

.8

.1

0 

0 

0 

0

0

Aug.

Mean

0

o

.20

.252

1.31 

1.24 

1.96 

.40 

.126 

.009 

0 

0 

0

.435

Sept.

Runoff In 

acre-feet

0 

0 

12

182

80 

69 

121 

24 

7.7 

.6 

0 

0 

0

314

Peak discharge (base, 35 sec. -ft.}.- No peak above base.

e Dally discharge less than 0.1 sec.-ft.
94 SAN GABRIEL RIVER BASIN

Fish Creek near Duarte, Calif.

Location,- Water-stage recorder and braod-crested weir, lat. 348 10'00", long. 117°55 I 25", 

IrTSffSWt 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 to September 1916, July 1917 to September 1949.

Average discharge.- 32 years (1917-49), 4.34 second-*feet.

 Extremes.- Maximum discharge during year, 35 .second-feet Jan. 20 (gage height, 1.28 feet); 

minimum -daily, less than 0.01 second-foot on some days In July, August, and September.

1916-49: 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.- Five discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Revisions (water year).- W 706: 1926.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

e

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.

eO.Ol

e.O4

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.3 

.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 

.3 

.3 

.3

Dec.

0.3 

.2 

.4 

.8 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.5 

.5

.5 

2.0 

1.0 

.7 

.7

.6 

.8 

.8 

.6 

.6 .

.8 

3.6 

1.2 

.8 

.7 

.7

Jan.

0.7 

.7 

.5 

.6 

.6

.6 

.6 

.6 

.6 

..6

.6 

.6 

1.4 

1.7 

1.5

1.2 

1.1 

1.1 

1.6 

18

4.4

4.3 

4.1 

2.7 

2.1

1.7 

1.6 

1.5 

1.3 

1.2 

1.2

Feb.

1.2 

1.3 

1.4 

1.2 

1.2

1.1 

1.6 

1.5 

1.3 

1.1

2.4 

3.6 

2.6 

2.1 

1.8

1.7 

1.7 

1.6 

1.5 

1.4

1.3

1.2 

1.1 

2.8 

4.2

4.4

8.2

5.7

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

Lendar year 1948

ter year 1948-49 .......................

Mar.

4.2 

3.6 

3.5 

4.7 

6.5

4.6 

3.6 

2.9 

2.5 

2.3

6.7 

4.1 

3.6 

3.2 

2.9

2.7 

2.6 

2.3 

2.7 

2.6

2.1 

2.0 

2.1 

2.2 

2.1

2.1 

2.0 

2.0 

1.8 

1.8 

1.7

Apr.

1.6 

1.6 

1.5 

1.5 

1.5

1.3 

1.3 

1.2 

1.1 

.9

.8 

.8 

.8 

.8 

1.0

1.0 

.9 

.9 

1.0 

.9

.8 

.7 

.7 

.7 

.8

.8

.7 

.6 

.6 

.6

Secondfoot -.days

2.00 

6.3 

22.5

250.63

61.0 

62.2 

93.7 

29.4 

22.7 

6.8 

.99 

.31 

.30

308.20

May

0.6 

.6 

.6 

.6 

.5

.4

.4 

.4 

.4

.5

.5 

.5 

.5 

.8 

.9

.9 

1.2 

2.1 

2.1 

1.5

1.1 

.8 

.6 

.5 

.5

.5 

.5 

.5 

.6 

.6 

.5

Maximum

0.3 

.3 

3.6

8.8

18 

8.2 

6.7 

1.6 

2.1 

.5 

.2

18

June

0.5 

.5

.4

.2 

.2

.2 

.2 

.2 

.3 

.2

.2 I 

1:i.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.2 

.3 

.3 

.2

Minimum

0.2 

.3

-

.5 

1.1 

1.7 

.6 

.4 

.1

-

July

0.2 

.1 

.1

e.04 

> e.03

e.Ol

Aug.

eO.Ol

Mean

0.065 

.21 

.73

.685

1.97 

2.22 

3.02 

.98 

.73 

.23 

.032 

.01 

.01

.844

Sept.

eO.Ol

Runoff In 

acre-feet

4.0 

12 

45

498

121 

123 

186 

58 

45 

13 

2.0 

.6 

.6

610

Peak discharge (base, 60 seo.-ftjj.- No peak above base.

e Dally discharge less than OTT sec. -ft.
SAN GABRIEL RIVER BASIN

San Dlmas Creek near San Dimas, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°08'45", long. 117°46'35", 

IrTSWfNEt sec. 25, T. 1 N., R. 9 W., at mouth of San Dlmas 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 1949.

Average discharge.- 32 years (1917-49), 4.83 second-feet.

Extremes.- Maximum discharge during year, 6.5 second-feet Jan. 25 (gage height, 0.56 foot); 

no' flow during parts of August and September.

1916-49: Maximum discharge, 5,000 second-feet Mar. 2, 1938, from records of release 

at San Dimas Dam and computed inflow between dam and gaging station; no flow during 

parts of many years.

Remarks.- Records fair. Flow regulated by San Dimas flood-control dam. San Dimas Water 

GO. diverts water just below this station for irrigation.

Cooperation.- Fifty discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Revisions (water year).- W 1061; 1938(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

,e0.02

J*o v.

L e0.02 

e.Ol 

[ e.02

Dec.

LeO.02 

e.03

L e.04

L e.05

.1 

.2 

.2 

.1 

,1 

.1

Jan.

0.1 

.1 

.1 

.1 

.1

,1 

.1 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.5

.1 

2.8 

5.4 

5.5 

2.8

.4 

.4 

.4 

.2

.2

.2

Feb.

0.2 

.2 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.2 

.1 

.1 

.1

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4

.4

.4 

.6 

.7

Month

Octol 

Novel 

Dece

Ca

Janw 

pebri 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

jary . * . . .. .. .. .....

l.. v , ..................................

ber year 1948-49 .......................

Mar.

0.5 

.4 

.4 

.5 

.5

.5 

.4 

.4 

.4 

.4

.5 

.5 

.4 

.4 

.4

,4 

.4 

.4 

.4

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2 

.3

Apr.

0.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

,2 

.2 

.2

1.1 

2.5 

2.2 

2.0 

1.9

2.5 

3.0 

3.0 

3,0 

3.1

3.1 

3.0 

3.1 

3.2 

3,2

Second - 

foot -days

0.62 

.40 

1.65

381.88

21.0 

7.7 

11.6 

43.1 

96.7 

105.3 

92.8 

.27 

3.8

384.94

May

3.1 

3.1 

3.1 

3.1 

2.6

2.3 

2.3 

3.3 

4.7 

4.3

3.8 

3.6 

3.6 

3.7 

3.6

3.4 

3.7 

3.6 

3.7 

3.7

3.7 

3.6 

3.1 

2.0 

2.2

2.3 

2.3 

2.3 

2.3 

2.3 

2.3

Maximum

.2

4.7

5.5 

.7 

.5 

3.2 

4.7 

4.7 

4.5 

.1 

.8

5.5

June

2.3 

2.3 

2.2 

2.6 

3.1

3.2 

3,3 

3.3 

3.3 

3.4

3.6 

3.6 

3,6 

3.4

3.2

2.8 

3.1 

3.2 

3.2 

3.1

3.1 

4.0 

4.7 

4.6 

4.6

4,6 

4.6 

4.5 

4.5 

4.3

July

Mlnlmun

'"

-

.1 

.1 

.2 

.2 

2.0 

2.2 

,1 

0 

0

0

4.3 

4.3 

4.3 

4.5 

4.5

4.5 

4.5 

4.5 

4.3 

4.2

3.9 

3.8 

3. 8 

3.7 

3.7

3.6 

3.3 

3.2 

3.1 

2.8

2.7

2.9 

2.8 

2.7 

1.8

.4 

.3 

.2 

.1 

.1 

.1

Aug.

0.1

1 e.03

I e.Ol 

0

I e.oi

- 0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0

Mean

.020 

.013 

.053

1.04

.68 

.28 

.37 

1.44 

3.12 

3.51 

2.99 

.009 

.13

1.05

Sept.

0 

0 

0

0 

0

0 

0 

0 

0 

.2

.5 

.8 

.7 

.6 

.5

.4 

.1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff in 

acre -feet

1.2.a

3.3

757

42 

15 

23 85 ' 

192 

209 

184 

.5 

7,5

763

e Daily discharge less than 0.1 sec.-ft.
96 SAN GABRIEL RIVER BASIN 

Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°09'30", long. 117°48'40" 

in center of sec. 21, T. 1N..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 1949.

Average discharge.- 29 years (1920-49), 1.19 second-feet.

Extremes.- Maximum discharge during year, 11 second-feet Sect. 16 (gage height, 0.86 

foot'); no flow during several months.

1919-49: 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 dam. Glendora

Irrigating Co. made no diversions during this water year at diversion dam 1.5 miles 

above station.

Cooperation.- Twenty-four discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1

.2 

f e.Ol,

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0

0

, e.05

.1 

.6

.2 

.3 

.3 

.2 

.2

.2 

.2 

.1 

.2 

.1 

.1

Feb.

0.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

.2 

.3 

.2 

.Z 

.Z

.1

.1 

.1 

.1 

.1

.1 

.1

.1 

.1

.1

.Z 

.2 

.2

Month

Octo 

Novei 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

Lender year 1948

Mar.

0.1 

.2 

.2

.3 

.3

.2 

.3 

.3 

.3 

.3

.4 

.3 

.2 

.2 

.2

.2 

.1 

.1 

.2

.1

.1 

.1

.1 

.1 

.1

.1 

I e.04

Apr.

eO.03

e.07 

e.04

Secondfoot-days

0 

0 

.34

11.58

3.2

3.7 

5.3 

1.34 

.63 

0 

0 

0 

45.36

59.87

May

eO.03

0 

0 

0 

0

0 

0 

0 

0

0 

0

Maximum

0 

0 

.2

1.6

.6 

.3 

.4

0 

0

0 

7.4

7.4

June July

Minimum

0

0 

0

0

0

.1

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.011

.032

.10 

.13 

.17 

.045 

.020 

0 

0 

0 

1.51

.164

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

3.0

7.0 

7.4 

7.1 

6.1 

6,1

6.1 

2.3

I e.04

0 

0 

0

Runoff In 

acre-feet

0 

0 

.7

23

6.3 

7.3 

11 

2.7 

1.2 

0 

0 

0 

90

119

e Dally discharge less than 0.1 sec.-ft.
SAN GABRIEL RIVER BASIN 97

Little Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder, lat. 34°10 I 05", long. 117°50'15", In SE£ sec. 17, T. 1 

«., H. 9 W., 0.8 mile upstream from mouth of canyon and 2.5 miles northeast of Grlendora. Altitude of gage, about 1,330 feet.

Drainage area.- 2.7 square miles.

Records available.- December 1938 to September 1949. January 1929 to November 1938 at 

site 0.8 mile downstream (drainage area, 3.3 square miles).

Average discharge.- 11 years (1938-49), 0.90 second-foot.

Extremes.- Maximum discharge during year, 1.9 second-feet Mar. 4 (gage height, 0.30 

root); no flow during most of year.

1929-49; Maximum discharge, 960 second-feet (estimated) Mar. 2, 1938; no flow for 

several periods in each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H, E. Heager, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

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. Dec. Jan.

0 

O 

O 

O 

0

0 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.3

6 

8 

S 

6

5

4 

S 

3 

2 

2 

2

Feb.

0.2 

.1 

.Z 

.2 

,1

.1 

.2 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.Z 

.2 

.3 

.2

.2 

.2 

.3 

.5 

.8

.7 

1.1 

.8

Month

Octo 

Move 

Dece

Ca.

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

nber. , ..................................

lendar year 1948

ter year 1948-49 .......................

Mar.

0.6 

.6 

.6 

1.1 

1.1

.8 

1.0 

.8 

.6 

.6

.6 

.5 

.5 

.5 

.3

.2 

.2 

.2 

.2 

.2

.Z 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.Z

Apr.

0.2 

.2 

.08 

.06 

.07

.07 

.08 

.08 

.08 

.07

.04 

.04 

.04 

.05 

.05

.05 

.06 

.07 

.08 

.07

.04 

.02 

.01 

.01 

.01

.01 

0 

0 

.02 

.01

Secondroot-days

0 

O 

0

20.78

5.2 

9.2 

12,6 

1.67 

.6 

0 

0 

0 

0

29.27

May

0 

0 

0

o 

o

o 

o 

o 

o 

o

o 

o

0

o 

o

o

0 

.2 

.2

.1 

.1

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

O

1.6

.8 

1.1 

1.1 

.2 

.2 

0 

0 

O 

0

1.1

June

Minimum

July

0 

0

o

o

0

.1 

,1

0 

0

o

0

o 

o

0

Aug.

Mean

o 

o 

o

.057

.17 

.33 

.41 

.056 

.02 

0 

0 

0 

0

.080

Sept.

Runoff in 

acre-feet

0 

0

o

41

10 

18 

25 

3.3 

1.2 

0 

O 

O 

0

58
SAN GABRIEL RIVER BASIN

San Jose Creek near Whittier, Calif.

LocatIon.- Water-stage recorder, lat. 34°01'2S", long. 118°02iOS", In Paso de Bartolo 

Grant, at Workman-Mill Road B»idge, 3 miles north of Whittier. Altitude of gage, 

about 230 feet.

Drainage area.- 85.2 square miles.

Records available.- January 1929- to September 1949.

Average discharge.- 20 years, 9.04 second-feet.

Extremes.- Maximum discharge during year, 107 second-feet Jan. 20 (gage height, 2.14 

feet); minimum dally, 0.2 second-foot on many days.

1929-49: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no flow at times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H."E. fiedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.0

1.0

1.0 

.4

1.0

1.2 

1.0 

1.0 

1.2 

1.2

.8 

1.0 

1.2 

1.4 

1.4

1.2 

1.4 

1.2 

1.2 

1.4

1.2 

1.4 

1.8 

1.2 

1.0

.8 

.8 

1.0 

1.4 

1.2 

1.0

Nov.

0.8 

.8 

1.2 

1.0 

.8

1.2 

1.4 

1.0 

.6 

.6

2.0 

1.6 

1.2 

1.2 

.8

.8 

1.2 

1.0 

.8 

1.0

1.0 

.8 

1.0 

1.4 

1.2

.8 

.8 

1.2 

1.0 

1.2

Dec.

1.4 

1.4 

1.0 

1.0 

1.4

1.2 

.8 

1.0 

1.0 

.6

.8 

.8 

.8 

1.2

1.4

1.2 

14 

3.7 

1.8 

2.0

1.6 

2.7 

2.2 

1.0 

.6

.8

5.0 

2.9 

1.6 

1.2 

1.2

Jan.

1.2 

1.2 

.8 

.6 

.6

.8 

1.6 

1.8 

2,0 

1.8

2.4 

3.1 

5.6 

3.8 

3.1

2.7 

2.2 

8.7 

4.3 

35

4.1 

3.3 

4.0 

2.4 

1.8

1.4 

1.0 

1.4 

1.8 

2.2 

2.7

Month

Octo 

Move 

Dace

Ca

Janui 

Febri 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

Feb.

3.3 

4.0 

4.7 

3.8 

3.3

2.9 

5.9 

3.3 

2.2 

2.0

2.4 

3.1 

2.0 

1.6 

1.8

2.0 

2.0 

2.0 

2.2 

2.0

2.0 

2.0 

1.8 

1.8 

2.0

2.2 

3.3 

2.4

lendar year 1948 

ftpy

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

ber year 1948-49 ...... ^. .......

Mar.

1.8 

1.8 

2.0 

3.8 

3.3

2.4 

2.7 

2.9 

2.4 

2.2

5.8 

2.7 

1.8 

1.6 

1.8

1.8 

2.0 

2.4 

2.4 

2.4

2.2 

2.4 

2.4 

2.2 

2.0

1.8 

1.8 

2.0 

1.8 

2.2 

2.7

Apr.

3.1 

3.5 

3.8 

3.1 

4.2

5.0 

5.2 

4.5 

4.2 

3.8

3.5 

3.3 

3.1 

2.9 

2.9

2.9 

2.9 

2.9 

3.1 

2.9

2.7 

2.4 

1.4 

1.4 

2.0

1.6 

1.6 

1.6 

2.2 

2.7

Secondfoot -days

35.0 

31.4 

59.3

903.6

103.4 

74.0 

73.5 

90.4 

52.2 

29.8 

24.0 

80.0 

20.2

613.2

May

2.2 

1.8 

1.8 

1.8 

1.8

1.6 

1.6 

1.6 

1.8 

2.0

1.6 

1.6 

2.4 

2.0 

2.0

1.8 

1.6 

1.8 

2.2 

2.4

1.6 

1.6 

1.0 

.8 

1.4

2.0 

2.2 

2.0 

1.4 

.6 

.2

Maximum

1.8 

2.0 

14

18

35 

5.9 

5.8 

5.2 

2.4 

2.0 

2.0 

1.4 

1.2

35

June

0.4 

.8 

1.2 

.8 

.8

.8 

.6 

1.0 

1.2 

.8

.8 

1.0 

.6 

.6 

.8

1.2 

1.2 

1.2 

1.2 

.8

1.0 

1.0 

1.0 

1.4 

2.0

1.8 

1.2 

1.0 

1.0 

.8

Minimum

July

0.4 

.6 

.6

.4

.6 

1.6 

1.6 

1.4 

.2 

.4 

.2 

.2 

.2

.2

0.8 

.8 

1.0 

.8 

.8

1.0 

.8 

.8 

.6 

1.0

.8 

1.0 

2.0 

1.2 

.6

.6 

1.2 

.6 

.4 

.2

.4 

.2 

.4 

.6 

.6

.4

.6 

.8 

1.0 

1.0 

1.0

Me

Aug.

1.2 

1.2 

.8 

 4 

1.0

1.0 

1.4 

1.0 

.8 

.8

1.0 

1.0 

.6 

.8 

.4

.4

.8 

.2

.2

.2

.2 

.4 

.2 

.2 

.4

.4

.4 

.4 

.8 

.4

1.0

in

1.13 

1.05 

1.91

2.47

3.34 

2.64 

2.37 

3.01 

1.68 

.99 

.77 

.65 

.67

1.68

Sept.

0.8 

.8 

.8 

.8 

.4

.4 

.6 

.6 

.6 

.4

.8 

.2 

.2 

.6 

.8

.6 

.8 

.6 

.4 

.2

1.0 

1.2 

.6 

.4 

.6

1.0 

1.0 

1.0 

1.0 

1.0

Runoff in 

acre-feet

69 

62 

118

1,790

205 

147 

146 

179 

104 

59 

48 

40 

40

1,220
SAN GABRIEL RIVER BASIN 99

Coyote Creek near Artesia, Calif.

Location.- Water-stage recorder, lat. 35°50'45", long. 118°03'30", in Los Coyotes Grant, 

on l)ei Amo Street Bridge, 1.8 miles southeast of Artesia, Los Angeles County. Altitude of gage, about 35 feet.

Drainage area.- 110 square miles.

Records available.- October 1939 to September 19*49 in reports of Geological Survey. 

December 1928 to September 1939 (weekly discharge measurements only prior to January 

1930) in files of Los Angeles County Flood Control District.

Average discharge.- 19 years (1930-49), 8.44 second-feet.

Extremes.- Maximum discharge during year, 11 second-feet Jan. 21 (gage height, 3.93 feet); 

no now on many days.

1930-49: -Maximum discharge, 4,190 second-feet Feb. 6, 1937 (gage height, 10.1 feet); 

no flow at times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. h!. Meager, chief engineer.

Discharge, In aeoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

.4 

.4,

.6

.4 

.5 

.3

0 

0

.3 

1.4 

.8 

' .6 

.5

.2 

.2 

.2 

.5 

.9

.9 

1.0 

1.0 

.8 

1.0 

1.0

Nov.

1 0 

8 

9 

9 

8

0 

0 

0 

0 

0

0 

.7 

.7 

.5 

.4

.4

.4 

0 

0 

0

.3 

.3 

.2 

.2 

.2

.2 

.2 

.3 

.2 

.2

Dec.

0.2 

.1 

.6 

1.5 

3.1

3.3 

3.2 

3.4 

3.1 

2.9

2.2 

2.5 

2.6 

2.8 

2.5

2.1 

4.4 

5.2 

4.0 

3.3

3.1 

3.3 

3.3 

3.4 

3.6

3.8 

5.3 

5.4 

4.2 

3.6 

3.4

Jan.

3.3 

3.2 

2.8 

2.6 

2.3

2.0 

2.5 

2.8 

3.2 

3.5

4.0 

4.8 

6.2 

6.4 

5.5

4.9 

S.8 

6.1 

6.S 

8.9

9.2 

6.8 

4.9 

3.7 

3.1

2.5 

2.0 

2.1 

2.2 

2.4 

2.6

Feb.

2.8 

2.9 

3.S 

3.3 

3.2

3.1 

3.7 

5.8 

3.4 

3.1

3.1 

3.3

3.2 

3.0 

3.1

3.0 

2.9 

2.9 

3.1 

3.2

3.3 

3.3 

3.3 

3.5 

3.6

3.7 

3.9

4.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May. 

June 

July 

Augu 

Sept

Wa

Bber. ..................................

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

4.0 

4.0 

4.1 

4.1 

4.1

3.8 

3.S 

3.6 

3.7 

2.9

1.7 

3.7 

2.7 

2.6 

2.5

2.5

2.2 

2.2 

2.2 

2.2

2.1 

2.3 

1.5 

2.2 

1.6

2.2 

1.9 

2.0 

2.0 

1.7 

1.4

Apr.

1.1 

1.0 

1.0 

.9 

.7

.4 

.3 

0 

0 

.3

.4 

.2 

.2 

0 

.2

.8 

1.0 

1.0 

1.2 

.8

1.0 

.9 

.7 

.6 

.5

.4 

.2 

.1 

0 

0

Secondfoot -days

is. 9 

9.8 

95.4

644.2

128.8 

94.6 

83.2 

15.9 

10.7 

8.7 

4.7 

14.1 

0

479.8

May

0

0 

0 

0 

0

.2 

.3 

.3

.5 

.5

.4 

.4 

.3 

.3 

.4

.5 

.4 

.3 

.2 

.3

.7 

1.0 

1.1 

.5 

.4

.2 

.2 

.3 

.3 

.4 

.3

Maximum

1.4 

1.0 

5.4

7.7

9.2 

5.8 

4.1 

1.2 

1.1 

1.2 

1.4 

1.2 

0

9.2

June

0.2 

.2

.1 

0 

0

0 

0 

0 

0 

0

.2 

.2 

.2 

0 

0

0 

0 

0

.1

.6

1.0 

.8 

.4 

.4 

.3

.7 

.6 

1.2 

1.0 

.5

Minimum

July

0.4 

.5 

.5 

.6 

.4

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

1.4 

.9

0 

0 

.1

0

2.0 

2.8 

1.4 

0 

0 

0 

0 

0 

0

0

Aug.

1.1 

.6 

.7 

.4 

.4

.6 

.6 

.5 

0 

0

0 

0 

1.0 

1.2 

.8

.7 

.5 

1.0 

.8 

.6

.8 

.7 

.6

.5 

0

0 

0 

0 

0

0 

0

Mean

0.4S 

.33 

3.06

1.76

4.15 

3.38 

2.68 

.S3 

.35 

.29 

.15 

.45 

0

1.31

Sept.

Runoff In 

acre-feet

28 

19 

189

1,280

2SS 

188 

165 

32 

21 

17 

9.3 

28 

0

951
100 SAN GABRIEL RIVER BASIN

Brea Creek below Brea Dam, near Fullerton, Calif.

Location.- Water-stage recorder, lat. 33°S3'15", 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 1949.

Extremes.- Maximum discharge during year, 28 second-feet Feb. 27 (gage height, 1.48 feet); 

no flow July 24-29, Aug. 5 to Sept. 30.

1942-49: Maximum discharge, 655 second-feet Feb. 29, 1944 (gage height, 5.10 feet); 

no flow during parts of most years.

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

Flow regulated by Brea Dam.

Cooperation.- Gage-height record furnished by Corps of Engineers.

Revisions (water year) .- rf 1041: 1944(M).

Discharge, In second-feet, water year October 1948 to September 1849

Day

1 

2 

3

4

5

6 

7 

8 

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 

.01 

.01 

.01

.02 

.02 

.01 

.02 

.03

.02 

.03 

.1 

.1 

.2

.2

.08 

.1 

.1 

.02

.02 

.02 

.05 

.04 

.03

.03 

.07 

.1 

.1 

.2 

.06

Nov.

0.04 

.1 

a. 08 

a. 06 

.04

.04 

.04 

 .03 

.02 

.02

.05 

.04 

.02 

.02 

.03

.03 

.02

a. 03

Dec.

taO.03

.01 

.02 

.05 

.02 

.01

.01 

.01 

.01 

.09 

.1

.02 

1.5 

.2 

.2 

.02

.02 

.2 

.09 

.03 

.02

.1

.4 

.05 

a. 04 

.03 

.02

Jan.

0.02 

.02 

.02 

.02 

.02

.03 

.03 

.03 

.03 

.02

.08 

.07 

.3 

.09 

.03

.02 

.09 

.03 

.06 

.6

.04 

.03 

.05 

.03 

.02

.02 

.04 

.1 

.04 

.03 

.02

Feb.

0.03 

.03 

.2 

.05 

.05

.03 

.6 

.07 

.05 

.04

.09 

.07 

.04 

.04 

.03

.03 

.03 

.03 

.03 

.02

.02 

.02 

.02 

.03 

.03

.03 

.8 

.07

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebri 

Hare 

Aprl 

Nay

June 

July 

Augu 

Sept

Wa

Lendar year 194

ter year 1948-49 ...............

Mar.

0.04 

.04 

.04 

.1 

.1

.06 

.05 

.04 

.04 

.03

.3 

.05 

.04 

.04 

.04

.03 

.03 

.02 

.04 

.04

.03 

.03 

.04 

.03 

.03

.02 

.02 

.02 

.02 

.01 

.02

Apr.

0.02 

.03 

.03 

.03 

.02

.02 

.02

a. 02

.03 

.03 

.03

.02 

.03 

.2 

.3 

.2

.02 

.02 

.02 

.02 

.01

May

0.01 

.02 

.03 

.03 

.04

.02 

.03 

.01 

.02 

.03

.07 

.2 

.3 

.07 

.06

.05 

.08 

.07 

.07 

.09

.07 

.05 

.03 

.03

.03

.03 

.04 

.04 

.04 

.02 

.01

£E3£. "-1"-

1.84 0.2 

1.07 .1 

3.42 1.5

19.21 1.5

2.03 .6 

2.58 .8 

1.44 .3 

1.30 .3 

1.69 .3 

.47 .05 

.44 .05 

.07 .03 

0 0

16.35 1.5

June '

0.01 

.02 

.01 

0 

0

0 

0 

0 

0 

0

0 

.01 

0 

.01 

.02

.02 

.03 

.03 

.02 

.01

.01 

.02 

.03 

.04 

.05

.01 

.02 

.05 

.04 

.01

July

0.01 

.01 

.01 

0 

.01

.01 

,01 

.01 

.01 

.01

.01 

.01 

.03 

.05 

.02

.03 

.03 

.01 

.05 

.03

.03 

.01 

.01 

0 

0

0 

0 

0 

0 

.01 

.02

Aug.

0.03 

.01 

.02 

.01 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0 

0

sept.

Mining Mean *£«£

0.01 0.059 3.6 

.036 2.1 

.J10 6.8

0 .052 38

.02 .865 4.0 

.02 .092 5.1 

.01 .046 2.9 

.043 2.6 

.01 .055 3.4 

0 .016 .9 

0 .014 .9 

0 

00 

.002 .1 

0

0 .045 32

a No gage-height record; discharge Interpolated or computed on basis of weather records and dam 

tender's report of no change In discharge.
SAN GABRIEL RIVER BASIN 

Brea Creek at Pullerton, Calif.

101

Location.- Water-stage recorder, lat. 33°52'25", long, 117 0 55'30", in San Juan Cajon de 

Santa Ana Grant, between Maiden Avenue and U. S. Highway 101 at Pullerton, Orange 

County. Altitude of. gage, about 250 feet.

Drainage area.- 26.2 square miles.

Records available.- October 1930 to September 1949.

Average discharge,- 18 years (1930-38, 1939-49), 1,38 second-ffet.

Extremes.- Maximum discharge during year, 51 second-feet Feb. 27 (gage height, 0.37 foot); 

no now during most of year.

1930-49: Maximum discharge, 3,700 second-feet Mar. 14, 1941 (gage height, 5.45 

feet); no flow during most of each year,

Cooperation.- Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, in second-fee,t, water year October 1948 to September 1949

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,

O 

0 

.1 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1

3.4 

0 

.1 

.5

.7 

.8 

.6 

.6 

.3

.5 

.7 

.3 

.3

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0

0

.1

.2 

.5 

0

o

0 

0 

0 

.2 

.9

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

o

0 

.4 

0 

0

0 

2.0 

0 

0 

0

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

3.0

0

Month

Oeto 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

0 

0 

0 

.3

0

0 

0 

0 

0

.1

.4

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

.1

0

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

9.0

19.0

1.9 

5.5 

.9 

0 

0 

0 

0 

0 

0

17.3

May

Maximum

0 

0 

3.4

3.4

.9 

3.0

.4 

0 

0 

0 

0

o

0

3.4

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.29

.05

.06 

.20 

.03 

0 

0 

0 

0 

0 

0

.05

Sept.

Runoff in 

acre-feet

0 

0 

18

38

3.8 

11 

1,8 

0 

0 

0 

0 

0 

0

35

Fullerton Creek below Fullerton Dam, near Brea, Calif.

Location,- Water-stage recorder, lat. 33°53'40", long. 117°53 I 05", on outlet channel of 

Fullerton Dam, 1.6 miles southeast of Brea, Orange County. Altitude of gage, about 

260 feet (topographic map).

Drainage area.- 3.05 square miles.

Records available.- October 1941 to September 1949.

Extremes,- wo flow during year,

" 1351-49: Maximum discharge, 298 second-feet Mar. 16, 1943 (gage height, 3.80 feet)- 

no flow most of each year.

Remarks.- No flow since Jan. 5, 1947. Flow regulated by Fullerton Dam.

Cooperation.- Gage-height record furnished by Corps of Engineers.

947809 O - 51 - 8
102 SAN GABRIEL RIVER BASIN 

Fuller-ton Creek at Fuller-ton, Calif.

Location. - Water-stage recorder, lat. 33°52'SO", long. 117°54'20", in San Juan Ca.ion de 

Santa Ana Grant, on Raymond Avenue Bridge, at Fullerton, Orange County. Altitude of 

gage, about 170 feet.

Drainage area.- 6.2 square miles.

Records available.- October 1939 to September 1949 in reports of Geological Survey. 

OctoDer iyai to September 1935 at site at Cypress Avenue (drainage area, 4.3 square 

miles) and October 1935 to September 1939 in files of Orange County Flood Control 

District.

Average discharge.- 14 years (1935-49), 0.78 second-foot.

Extremes.- Maximum discharge during year, 16 second-feet Feb. 27 (gage height, 1.49 foot); 

no now most of year.'

1935-49: 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 -T. A. 

Bradley, flood-control engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

83 

£4

25

26 

27 

28 

29 

30 

31

Oct.

0 

O 

0 

0 

0

0 

.3 

1.4 

1.3 

.6

2.3 

1.8 

2.8 

.8

0

0 

0 

0 

0 

0

0

o

0 

-0 

0

0 

1.4 

1.4 

.7 

0 

0

Nov.

0 

0 

0 

0 

0

0 

0 

.8 

1.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Dec.

0 

1.2 

1.2 

1.4 

0

0 

.6 

.6 

1.0 

1.4

.2 

0 

0 

.5 

.2

.1 

3.2 

.8

0 

0

0 

1.0 

.7 

.Z 

0

1.0 

2.1 

0 

0 

0 

0

Jan.

0 

0 

0 

O 

0

0 

0 

0

.1

0

.9 

1.2 

1.7 

.8 

0

0 

0 

0 

.4 

1.0

0 

.2 

.5

0 

0

0

o

0 

0 

0 

0

Feb.

0 

0 

1.0 

.1 

.4

.3 

1.7

0 

0 

0

.7

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

.1

1.7 

0

Month

Ooto 

Hove 

Dece

Ca

Janix 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946 .......................

ter year 1948-49 .......................

Mar.

0 

0 

0 

1.2 

.2

0 

0 

0 

0 

.1

1.0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.3 

.3 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.2

0

o

0

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0 

0 

0 

0 

.2

Secondfoot -days

14.8 

2.0 

17.4

48.1

6.8 

6.0 

3.2 

.5 

8.3 

1.0 

0 

0 

2.9

62.9

May

O 

.2 

.4 

.2 

0

0 

0 

O 

0 

0

.1 

.3

0 

.3 

0

0 

.2 

.3 

.3 

0

0

0 

0 

0 

0

.8 

.7 

1.0 

.3

1.5 

1.7

Maximum

2.8 

1.2 

3.2

3.2

1.7 

1.7 

1.2 

.2

1.7 

.6 

0 

0

1.2

3.2

June

0.4 

0 

.6 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

'

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0.48 

.07 

.56

.13

.22 

.21 

.10 

.02 

.27 

.03 

0 

0 

.10

.17

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

.5 

.6

0 

0

0

0 

0 

0 

0 

0

.6 

1.2

0 

0 

0

Runoff In 

acre-feet

29 

4.0

35

96

13 

12 

6.3 

1.0 

16

?.o

0 

0 

5.8

124

Note.- Ho gage-height record June 7 to Sept. 12; discharge computed on basis of records ftir nearby 

stations.
LOS ANGELES RIVER BASIN 103

Los Angeles River at Sepulveda Dam, Calif.

Location.- Water-stage recorder, lat. 34°09'50", long. 118°28 I 10", on outlet channel of 

Sepulveda Dam, in Ex Mission San Fernando Grant, 0.2 mile upstream from Sepulveda Boulevard in city of Los Angeles , and 2 miles southwest of Van Nuys, Los Angeles County. 

Altitude of gage, about 675 feet (from topographic mapj.

Drainage area.- 155 square miles.

Records available.- May 1943 to September 1949.

Extremes.- Maximum discharge during year, 85 second-feet Dec. 17-(gage height, 2.50 feet); 

minimum'daily, 3.0 second-feet Sept. 29.

1943-49: Maximum discharge, 4,800 second-feet Feb. 22, 1944 (gage height, 7.90 feet); 

minimum daily, 3.0 second-feet Sept. 29, 1948.

Remarks.- Records fair. Storage of imported water in San Fernando Reservoir, and diversions 

above station. Flow regulated by Sepulvefla flood-control dam.

Cooperation.- Gage-height record and 32 discharge measurements furnished by Corps of 

Engineers.

Discharge, in second-feet, water year October 1948 to September 1949

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

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Oct.

5.2 

4.8 

4.8 

4.7 

4.8

4.9 

5.1 

5.1 

5.0 

4.9

5.1 

5.2 

5.2 

5.7 

5.2

5.5 

5.4 

5.5 

5.5 

5.5

5.4 

5.2 

5.1 

5.1 

5.0

5.0 

5.2 

5.9 

5.6 

5.6 

5.7

Nov.

5.9 

6.1 

6.1 

6.3 

6.4

5.7 

5.6 

5.1 

5.0 

5.0

5.1 

5.1 

5.2 

5.5 

5.9

6.0 

6.0 

5.1 

5.1 

5.0

5.0 

5.0 

4.9 

5.2

5.1

5.2 

5.0 

5.0 

5.4 

4.9

Dec. .

5.0 

5.2 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

17 

23

32 

45 

55 

59 

59

59 

73 

36 

30 

31

51 

59 

60 

24 

9.0

dlO 

dZ5 

dlO 

7.3 

6.1 

6.0

Jan.

5.7 

5.6 

5.5 

5.4 

5.7

5.5 

5.4 

5.4 

5.4 

5.2

5.9 

8.7 

8.9 

8.2 

6.8

5.7 

5.5 

5.5 

6.7

IS

7.9 

7.2 

8.0 

6.3 

5.7

5.7 

5.7 

5.6 

5.5 

5.6 

5.6

Feb.

5.6 

5.6 

6.5 

7.0 

6.1

6.0 

6.9 

7.0 

6.2 

6.0

5.6 

5.7 

5.7 

5.2 

5.2

5.4 

5.4 

5.5 

5.6 

5.6

5.6 

5.6 

5.5 

5.9 

5.5

5.9 

5.9 

5.6

Month

olber. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

5.5 

6.0 

6.3 

6.5 

6.4

6.3 

6.1 

6.0 

5.9 

6.3

8.9 

7.3 

6.0 

5.9 

5.9

5.9 

5.9 

5.9 

6.0 

5.7

5.9 

5.7 

5.5 

5.7 

5.4

5.4 

5.1 

5.4 

5.5 

5.7 

5.5

Apr.

5.2 

5.7 

5.1 

5.4 

5.5

5.6 

5.2 

5.2 

5.2 

5.6

5.9 

5.6 

5.6 

5.7 

5.7

5.6 

5.7 

5.9 

6.1 

6.3

5.7 

5.9 

5.9 

5.9 

5.6

5.5 

5.9 

5.6 

6.4 

6.4

Secondfoot-days

161.9 

161.9 

829 ._0

4,374.0

200.5 

163.3 

185.5 

170.6 

162.2 

156.9 

187.0 

170.4 

130.5

2,679.7

May

5.7 

5.2 

5.4 

5.4 

5.4

5.2 

4.7 

4.7 

4.5 

4.9

5.0 

5.1 

5.4 

5.5 

5.7

5.9 

5.7 

5.9 

6.3 

5.7

5.6 

5.0 

4.8 

4.8 

4.8

4.8 

4.7 

5.0 

5.1 

5.2 

5.1

Maximum

5.9 

6.4 

73

73

15 

7.0 

8.9 

6.4 

6.3 

5.9 

7.4 

7.2 

5.9

73

June

5.4 

5.4 

5.1 

5.2 

5.6

5.4 

5.5

5.7 

5.7 

5.7

5.1 

5.0 

5.1 

5.0 

5.0

4.7 

4.9 

5.4 

4.7 

4.7

5.1 

5.1 

5.2 

5.6 

5.6

4.5 

4.8 

5.4 

5.9 

5.4

Minimum

July

5.2 

5.1 

S.6 

5.7 

5.9

6.1 

6.4 

6.4 

6.5 

6.4

6.5 

6.1 

6.1 

,6.4 

6.7

7.4 

7.3 

6.4 

5.6 

5.7

5.9 

5.9 

5.2 

5.4 

5.4

5.5 

5.9 

6.0 

6.0 

6.0 

6.3

4.7 

4.9 

5.0

4.5

5.2 

5.2 

5.1 

5.1 

4.5 

4.5 

5.1 

4.3 

3.0

3.0

Aug.

S.I 

5.2 

5.2 

5.2 

6.4

7.2 

6.5 

5.7 

6.1 

6.4

6.1 

6.4 

6.4 

6.1 

6.0

6.1 

6.5 

6.1 

5.5 

5.1

4.8 

5.0 

4.7 

4.7 

4.3

4.7 

4.6 

4.7 

4.3 

4.4 

4.7

Mean

5.22 

5.40

26.7

12.0

6.47 

5.83 

5.98 

5.69 

S.23 

5.23 

6.03 

5.50 

4.35

7.34

Sept.

 4.8 

5.0 

5.4 

5.9 

4.7

4.3 

4.5 

4.3 

4.8 

4.5

4.8 

5.1 

4.3 

4.4 

4.4

.7 

.7 

.8 

.8 

.5

4.2 

3.9 

3.8 

3.6 

3.6

3.6 

3.6 

3.1 

3.0 

3.4

Runoff In 

acre-feet

321 

321 

1,640

8,670

398 

32,4 

368 

338 

322 

311 

371 

338 

259

5,310

d Oage-height record doubtful) discharge computed on basis of unpublished records at a station 

half a mile downstream and estimated Intermediate inflow.
104 LOS ANGELES RIVER BASIN

Los Angeles River at Los Angeles, Calif.

Location.- Water-stage recorder, lat. 34 0 04'50", long. 118°13'35", near Pigueroa Street, 

L.OS Angeles, 0.1 mile upstream from Arroyo Seco.

Drainage area.- 510 square miles.

Records available.- October 1929 to September 1949>

Average discharge.- 20 years, 62.8 second-feet.

Extremes. - Maximum discharge dur.ing year, 1,530 second-feet Dec. 1? igage height, 2.10 

reet); minimum daily, 4.2 second-feet Oct. 25.

1929-49: Maximum discharge, 67,000 second-feet Mar. 2, 1938; no flow for Several 

periods in earlier years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. i!. Hedger, chief engineer.

Discharge, In second-feet, water year October 1948 to September-1949'

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5.2 

4.9 

4.6 

5.1 

5.4

5.7 

5.9 

5.9 

5.8 

5.7

5.6 

5.6 

4.9 

4.6 

4.9

5.2 

5.2 

6.4 

5.6 

5.6

5.2 

.9

.6 

.6 

.2

.6 

.9 

.9 

.9 

.9 

.9

Nov.

4.6 

4.6 

4.9 

4.9 

4.6

4.6 

4.6 

4.9 

4.9 

1.9

4.9 

4.9 

4.9 

4.9 

4.9

5.2 

5.2 

5.2 

5.2 

5.6

4.9 

5.2 

5.2 

5.2 

5.2

5.2 

4.9 

4.6 

4.9 

4.6

Dec.

4.6 

4.9 

8.8 

8.0 

5.2

4.6 

5.2 

5.2 

5.6 

28

9.5 

14 

18 

21 

24

32 

451 

69 

37 

37

52 

89 

63 

43 

26

57 

202 

39 

27 

26 

26

Jan.

27 

26 

26 

30 

33

27 

26 

25 

27 

26

86 

86 

92 

53

30

26 

26 

27 

94 

194

35 

77 

47 

33 

29

27 

27 

26 

26 

25 

26

Feb.

26 

25 

62 

30 

33

24 

97 

30 

28 

25

52 

27 

24 

26 

26

27 

26 

27 

27 

26

27 

28 

28 

59 

31

51 

44 

27

Month

Oeto 

Move

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

wa

lendar year 1948 

ary *

uary

ter year 1948-49. .......................

Mar.

26 

28 

34 

70 

39

25 

39 

29 

27 

52

152 

25 

21 

20 

25

23 

25 

26 

44 

27

26 

29 

32 

35 

33

29 

28 

30 

32 

33 

33

Apr.

32 

32 

30 

34 

32

33 

32 

30 

28 

25

28 

28 

27 

28 

29

29 

28 

32 

29 

29

29 

29 

27 

34 

37

33 

32 

29 

32 

34

Secondfoot -days

160.4 

148.3 

1,442.6

8,327.1

1,365 

963 

1,097 

911 

880 

723 

612.9 

316.8 

250.8

8,870.8

May

33 

33 

30 

29 

28

25 

21 

21 

22 

24

23 

24 

24 

24 

20

19 

21 

30 

135 

26

23 

20 

16 

20 

24

28 

29 

29 

27 

25 

27

Maximum

6.4 

5.6 

451

498

194 

97 

152 

37 

135 

30 

28 

16 

16

451

June

26 

28 30 ' 

29 

28

30 

30 

29 

26 

25

20 

18 

22 

24 

24

27 

27 

24 

19 

19

20 

20 

21 

22 

23

22 

22 

22 

, 22 

24

July

24 

23 

23 

24 

27

28 

26 

25 

24 

22

24 

25 

23 

23 

23

23 

21 

21 

27 

23

20 

13 

14 

13 

13

13 

11 

10 

10 

9.0 

7.9

Minimum

4.2 

4.6 

4.6

4.2

25' 

24 

20 

25 

16 

18 

7.9 

6.4 

4.9

4.2

Aug.

7.4 

6.4 

6.4 

7.4 

7.9

8.4 

9.0 

9.5 

10 

9.5

9.0 

9.0 

9.5 

9.0 

7.9

9.0 

13 

16 

13 

11

9.5 

10 

13 

13 

13

13 

11 

10 

10 

13 

13

Mean

5.17 

4.94 

46.5

22.8

44.0 

34.4 

35.4 

30.4 

26.4 

24.1 

19.8 

10.2 

8.36

24.3

Sept.

13 

13 

12 

10 

10

10 

11 

11 

10 

16

9.5 

10 

10 

10 

9.5

7.9 

5.9 

5.2 

5,2 

S.9

5.9

S.9

5.9 

5.9 

5.2

4.9 

5.6 

5.6 

5.6 

5.2

Runoff in 

acre-feet

318 

294 

2,860

16,500

2,710 

1,910 

2,180 

1,810 

1,750 

1,430 

1,220 

628 

497

17,610
LOS ANGELES RIVER BASIN 105

Los Angeles River near Downey, Calif.

Location.- Water-stage recorder, lat. S3°57 | 05", long. 118°10'2S", in San Antonio Grant, 

at Flrestone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2.5 miles west of 

Downey, Los Angeles County, Altitude of gage, about 100 feet.

Drainage area.- 614 square miles,

Records available.- March 1928 to September 1949.

Average discharge.- 21 years, 100 second-feet.

Extremes.-r Maximum discharge during year, 5,300 second-feet Dec, 17 (gage height, 6.43 

reetj; minimum daily, 11 second-feet Aug. 2.

1928-49: Maximum discharge, 79,700 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Cooperation,- Records furnished by Los Angeles County Flood Control District, through 

H. B." Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Bay

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

20

ei

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14 

14 

15 

15 

16

16 

16 

17 

16 

17

17 

16 

17 

17 

16

15 

14 

14 

15 

16

18 

18 

16 

15 

14

16 

20 

24 

24 

22 

19

Nov.

20 

21 

21 

24

21

21 

18 

14 

18

24

22 

20 

18 

16 

20

26 

22 

21 

21 

20

ia

20 

25 

24 

18

19 

18 

16 

18 

22

Dec.

21 

18 

18 

18 

18

18 

18 

18 

18 

20

27 

24

24 

30 

34

41 

1,130 

170 

75 

61

63 

181 

110 

75 

68

276 

681 

120 

53 

43 

42

Jan.

38 

33 

41 

39 

37

37 

36 

35 

34 

33

220 

228 

332

100 

62

58 

58 

58 

307 

843

53 

184 

68 

54 

46

42 

39 

36 

34 

34 

35

Feb.

33 

32 

199 

52 

40

34 

388 

66 

43 

36

111 

74 

38

41 

42

38 

35 

37 

34 

28

31 

35 

33 

107 

68

71 

161 

43

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apri

MAV

June 

July 

Augu 

Sept

Wa

lendar yeai-1948

* '

ter year 1948-49 .......................

Mar.

40 

38 

56 

345

102

46 

57 

50 

46 

57

581 

56 

41 

41 

38

35 

34 

31 

60 

43

33 

36 

38 

43 

46

39 

36 

44 

44 

45 

50

Apr.

50 

44 

39 

43 

43

42 

37 

36 

35 

31

37 

41 

43 

45 

42

37 

28 

36 

37 

31

33 

33 

29 

25

30

34 

36 

34 

34 

30

Secondfoot-days

519 

606 

3,513

20,326

3,254 

1,950 

2,251 

1,095 

1,526 

1,050 

871 

607 

684

17,926

May

27 

30 

34 

36 

38

44 

38 

27 

29 

32

34 

33 

37 

37 

27

37 

78 

118 

333 

53

42 

33 

35 

37 

39

40 

41 

37 

33 

34 

33

Maximum

24 

26 

1,130

1,280

843 

388 

581 

50 

333 

46 

42 

27 

27

1,130

June

30 

38 

36 

33 

25

30 

33 

35 

41 

46

43 

35 

35 

37 

41

41 

37 

32 

25 

25

31 

31 

34 

35 

36

36 

36 

37 

38 

38

July

38 

42 

30 

33 

28

32 

35 

35 

35 

35

35 

35 

35 

35 

33

31 

28 

28 

29 

30

31 

25 

21 

18 

17

17 

17 

18 

16 

15 

14

Minimum

14 

14 

18

10

33 

28 

31 

25 

27 

25 

14 

11 

16

11

Aug.

12 

11 

14 

18 

19

20 

20 

21 

21 

21

21 

20- 

20 

19 

15

18 

23 

27 

22 

19

15 

16 

19 

22 

25

23 

21 

19 

21 

23 

22

Mean

16.7 

20.2

113

55.5

105 

69.$ 

72.6 

36,5 

49.2 

35.0 

28,1 

19.6 

22.8

49.1

Sept.

22 

22 

22 

23 

24

25 

26 

27 

27 

26

26 

25 

25 

24 

24

24 

23 

23 

23 

23

23 

23 

23 

22

21

20 

19 

17 

16 

16

Runoff in 

acre-feet

1,030 

1,200 

6,970

40,310

6,450 

3,870 

4,460 

2,170 

3,030 

2,080 

1,730 

1,200 

1,360

35,550
106 LOS ANGELES RIVER BASIN

Los Angeles River at Long Beach, Calif.

Location.- Water-stage recorder, lat. 33°47'25" 

at Long Beach, Los Angeles County.

long. 118°12'20", at State Street Bridge

Records available.- December 1938 to September 1949. 

Average discharge.- 20 years (1929-49), 153 second-feet.

Extremes.- Maximum discharge during year, 5,520 second-feet Dec. 17 (gage height, 5.48 

feet); minimum daily, 13 second-feet Nov. 26, 27, Aug. 2,

1928-49: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no flow at times in 

1929, 1930, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Meager, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

36 

36 

32 

28 

32

38 

34 

28 

32 

26

20 

21 

22 

20 

2}

20

16 

20 

21 

20

20 

20 

19 

18 

17

16 

21 

22 

22 

22 

21

Nov.

16 

16 

22 

24 

22

21 

20 

15 

21 

21

21 

21 

18 

15 

15

20 

24 

21 

20 

22

18 

15 

18 

21 

20

13 

13 

IS 

15 

18

Pee.

22 

21 

22 

42 

30

22 

26 

26 

27 

27

40 

27 

26 

34 

38

42 

1,480 

337 

96 

70

70 

157 

219 

110 

67

54 

1,080 

218 

100 

100 

82

Jar).

78 

53 

42 

48 

46

38 

36 

30 

32 

32

220 

355 

559

114 

61

36 

38 

48 

70 

1,790

180 

87 

342 

103 

78

78 

82 

75 

61 

50 

40

Feb.

44 

40 

235 

136 

48

36 

516 

145 

58 

42

46 

227 

40 

32 

38

38 

36 

34 

36 

28

26 

40 

32 

44 

187

46 

237 

50

Month

Octo 

Hove

Decs

Ca

Janu 

Pebp 

Marc 

Aprt

Mav

June 

July 

Augu 

Sept

wa

lendar year 1948

et......................................

ter year 1948-49 .......................

Mar.

46 

42 

44 

125 

505

67 

44 

64 

48 

44

948 

100 

44 

46

40

44 

36 

38 

40 

127

34 

40 

78 

61 

58

40 

32 

28 

40 

38 

40

Apr.

44 

44 

36 

30 

44

40 

38 

38 

36 

32

30 

42 

44 

48 

50

46 

38 

38

44 

40

38 

44 

38 

30 

30

38 

42 

44 

44 

48

Secondfoot-days

741 

561 

4,712

27,800

f 4,902 

2,519 

2,981 

1,192 

1,572 

993 

877 

619 

690

22,359

May

32 

32 

36 

38 

38

40 

38 

32 

27 

36

34 

36 

38 

44 

44

34 

36 

85 

287 

145

58 

44 

34 

38 

38

44 

44 

44 

34, 

32 

30

Maximum

38 

84 

1,480

1,480

1,790 

516 

948 

50 

287 

38 

48 

87 

27

1,790

June

34 

38 

38 

36 

32

28 

34 

36 

36 

34

38 

28 

27 

32 

30

30 

32 

3? 

30 

26

30 

30 

36 

36 

30

36 

36 

34

se

38

July

Minimum

16 

13 

21

13

30 

26 

28 

30 

87 

86 

15 

13 

16

13

38 

46 

32 

34 

27

30 

34 

32 

34 

32

32 

34 

38 

34 

32

36 

32 

26 

27 

32

30 

27 

23 

20 

18

18 

18 

16 

15

15 

15

Aug.

14 

13 

20 

22 

22

22 

21 

 20 

21 

20

21 

20 

20 

20 

18

20 

20 

21 

24 

27

24 

2? 

21 

20 

18

18 

18 

18 

18 

18 

18

Mean

23.9 

18.7 

152

78.0

158 

90.0 

96.2 

39.7 

50.7 

33.1 

28.3 

20.0 

23.0

61.3

Sept.

18 

20 

21 

21 

22

21 

24 

24 

26 

26

87 

86 

26 

24 

26

, 24 

22 

81 

82 

27

27 

27 

26 

26 

22

28 

20 

 20 

16 

16

Runoff In 

acre-feet

1,470 

1,110 

9,350

55,150

9,720 

5,000 

5,910 

2,360 

3,120 

1,970 

1,740 

1,230 

1,370

44,350
LOS ANGELES RIVER BASIN 107

Pacoiraa Creek near San Fernando, Calif.

Location,- Water-stage recorder and broad-crested weir, lat. 34°20'02", long. 118°23'55", 

 rn SfivNEt 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.

Drainage area.- 28.2 square miles.

Records available.- March 1916 to September 1949.

Average discharge.- 32 years (1917-49), 8.65 second-feet.

Extremes.- Maximum discharge during year, 10 second-feet June 24 (gage height, 1.77 feet); 

no rlow during several months.

1916-49: Maximum discharge, 2,440 second-feet Mar..3, 1938; no flow for several 

months in most years.

Remarks.- Flow regulated by Pacoima flood-control dam.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

ft. fi. Heager, .chief engineer,

Revisions (water years).- W 881: 1938(M). W 1041: 1944(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.Z 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

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

.1 

.1 

.1 

.1 

.1

Dec.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Fetor 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

inber. ...................................

lendar year 1946

ter year 1948-49 .......................

Mar. Apr.

0 

0 

- 0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

4.0 

5.5 

5.5

Seoondfoot-days

6.2 

3.3 

1.5

166.7

0 

0 

0 

15.0 

164.6 

138.9 

0 

35.2 

8.3

373.0

May

5.5 

5.5 

5.4 

5.4

5.4

5.4 

5.2 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.5 

5.5

5.5 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.1 

4.8

.8 

.8 

.6 

.8 

.8 

.8

Maximum

0.2 

.2 

.1

6.4

0 

0 

0 

5.5 

5.6 

7.9 

0 

5.2 

.6

7.9

June

5.0 

4.9 

4.6 

4.6 

4.6

4.6 

4.6 

4.7 

4.7

4.7

4.7 

3.8 

4.0 

4.7 

4.6

4.6 

4.6 

4.5 

4.4 

4.. 7

4.2 

4.3 

3.9 

5.1 

7.9

7.6 

7.2 

5.6 

1.3 

0

Minimum

July

0.2 

.1 

0

0

0 

0 0 

0 

4.6 

O 

0 

0 

0

0

Aug.

0 

3.6 

5.2 

4.5

4.1

3,3 

2.4 

2.3 

.9

.4

.6 

.6 

.6 

.5 

.5

.5

.4 

.3 

.3 

.3

.3 

.4

44

.4 

.4

.4 

.4 

.4 

.3 

.2 

.3

Mean

0.20 

.11 

.05

.46

O 

0 

0 

.50 

5.31 

4.63 

0 

1.14 

.28

1.02

Sept.

0.3 

.2 

.3 

.3 

.3

.3 

.3 

.4 

.3 

.3

.2 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.1 

0 

0

.2 

.6 

0 

.4 

.5

Runoff In 

acre-feet

12 

6.5 

3.0

330

0 

0 

0 

30 

326 

276 

0 

70 

16

740
108 LOS ANGELES RIVER BASIN

Tu.lunga Creek near Colby Ranch, ualif.

Location.- Water-stage recorder, lat. 34°18'10", long. 118°09'35", just downstream from

 Lucas Creek, 400 feet upstream from crossing of Edison Road, 3.5 miles west of Colby 

Ranch, Los Angeles County, and 4 miles upstream from Big Tu.junga Dam.

Drainage area.- 66.9 square miles.

Records available.- October 1930 to September 1949

Average discharge.- 19 years, 20.3 second-feet.

Extremes.- Maximum discharge during year, 16 second-feet Jan. 20 (gage height, 6.43

 feet); no flow during periods in.July, August, September.

1930-49: Maximum discharge not determined, probably occurred Mar. 2, 1938. 

A discharge of 14,800 second-feet occurred Jan. 23, 1943 (gage height, 15.40 feet); 

no flow parts of some years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. ttedger, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.3

.5

.6 

.6

.6 

.6

.7 

.7 

.7

.6

.6 

1.0 

.9 

.8

.6 

.6 

.6 

.6 

.6

.6 

.6 

.8 

.9 

.9 

.8

NOV.

0.8 

.8 

.8

.8

.8 

.8

.8 

.8 

.9 

.9 

.8

.8 

.8 

.8 

.8 

.9

.9

1.0 

1.0

1.0 

1.0

1.1 1.1 1.1

1.2 

1.2

Dec.

1.2

1.2 

2.0 

2.1

1.4 

1.4

1.4 

1.5 

1.5 

1.6 

1.8

2.0 

5.8 

2.3 

1.8 

1.5

1.4 

1.8 

1.8 

1.6 

1.5

2.5 

5.8 

3.4 

Z.I 

2.4 

2.3

Jan.

2.3 

2.3 

2.3 

Z.Q

2.4 

2.4

2.8 

2.5 

2.6 

Z.9 

2.6

2.5 

Z.4 

Z.4

3.4

10

6.2 

5.3 

4.1 

3.4 

3.4

3.7 

3.7 

3.7 

3.3 

3.3 

3.4

Feb.

3.1 

3.1 

3.2 

3.2 

3.2

3.4 

3.2

4.4 

5.4

4.1 

3.8 

3.6

3.8 

3.8 

3.8 

3.9 

4.4

4.4 

4.4

4.6 

6.1 

8.2

8.6 

9.4 

7.8

Month

Oflto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mfl*r

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

6.6 

7.0 

8.2 

10 

11

5.8

6.0

11 

9.8 

9.0 

8.2 

7.8

7.8 

7.4 

7.0 7.4' 

7.8

6.4 

6.1 

5.8 

5.6 

5.8

5.6 

5.4 

5.1 

5.1 

4.8 

S.4

Apr.

5.4 

5.1 

4.6 

4.4 

4.4

4.4

4.1 

3.9

3.9 

3.8 

3.8 

3.6 

3.6

3.6 

3.6 

3.6 

3.8 

3.6

3.4 

3.Z 

3.1 

2.9 

3.1

3.1 

3.1 

2.9 

2.9 

2.7

Secondfoot-days

18.8 

26.5 

63.3

904.8

99.7 

128.1 

Z19.4 

112.1 

72.3 

16.2 

2.5 

2.4 

1.8

763.1

May

2.6 

2.6

Z.6 

2.6 

2.4

2.1

2.3

2.4

2.3 

2.1 

2.0 

2.3 

2.7

3.1 

3.2 

3.4 

4.8 

3.6

2.7 

2.3 

2.0 

1.8 

1.5

1.2 

1.1 

1.2 

1.6 

1.8 

1.8

Maximum

1.0 

1.2 

5.8

49

10 

9.4 

11 

5.4 

4.8 

1.5 

.2 

.1 

.1

11

June

1.5 

1.2 

1.0 

1.0 

.9

.8

.6 

.5

.5 

.5 

.5 

.4 

.3

.2 

.3 

.4 

.6 

.5

.3

.2 

.1 

.1 

.1

.2 

.4 

.6 

.6 

.4

July

0.2 

.2

.1 

.1 

.1

.1

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

0

o

0 

0

0

o

0 

0

.1

.1 .1 .1 .1 

.1 .1

Minimum

0.2 

.7 

1.2

.1

2.0 

3.1 

4.8 

Z.7 

1.1 

.1 

0 

0 

0

0

AUg.

0

0

0

0 

0 

0

0 

0

Mean

0.61 

.88 

2.04

2.47

3.?2 

4.58 

7.08 

3.74 

2.33 

.54 

.08 

.08 

.06

2.09

11 1 1 

1

1

1 1

1 1

1 1 1 1 

1

1 

1 1 

1 1

1 

11

1

Sept.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0

.1 .1 .1

.1 .1 

.1 

.1 .1

.1 .1

.1 

.1 .1

.1 

.1 .1 .1 .1

Runoff In 

acre-feet

37 

53 

126

1,790

198 

254 

43S 

222 

143 

32 

5.0 

4.8 

3.6

1,510
LOS ANGELES RIVER BASIN 109

Tujunga Creek near Sunland, Calif,

Location.- Water-stage recorder, lat. 34°17'55", long. 118°16'10", near center of sec. 

32, T. 3 N.,,R. 13 W. (unsurveyed), 0.2 mile downstream from a partly constructed 

and abandoned dam, 2 miles upstream from mouth of canyon, and 4 miles northeast of 

Sunland.

Drainage area.- 106 square miles,

Records available.- October 1916 to September 1949.

Average discharge.- 32 years (1917-49), 31.2 second-feet.

Extremes.- Maximum discharge during year, 20 second-fee^. Jan. 20 (gage height, 6 -3? feet): 

minimum daily, 0.6-second-foot Oct. 8, lg-23, Nov. 3, 4.

1916-49: Maximum discharge, 50/000 second-feet Mar. 2, 1938: minimum, 0.1 secondfoot at times during summers of 1919, 1924, 1928-31.

Remarks.- Flow regulated by Big Tujunga flood-control dam, 7 miles above station. Two or 

three small diversions above station for irrigation.

Cooperation.- Records furnished by Los Angela^ County Flood Control District, through 

H. fi. Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.9 

.8 

.7 

.8 

.8

.8 

.7 

.6 

.7 

.8

.8 

.9 

.9 

1.0 

.9

.8 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.7 

.7

.8 

.8 

.9 

.9 

.9 

.8

Nov.

0.8 

.7 

.6 

.6 

.9

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

.8 

.8 

.8 

.8 

.8

.9 

.9

1.0 

1.0 

1.0

1.0 

1.0

1.0 

1.0

1.0

Dec.

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 

.9 

.9

1.0 

4.2 

3.0 

2.5 

2.2

2.0 

1.8 

1.8

1.8 

1.8

2.5 

7.7 

4.8 

4.2 

3.5 

3.2

Jan.

2.9 

2.7 

2.4 

2.0 

2.0

2.0 

2.2 

2.2 

2.2 

2.2

2.4 

2.4 

2.5 

2.9 

3.0

3,0 

2.9 

2.9 

2.9

13

7.7 

6.2 

6.5 

4.8 

4.8

4.2 

3.9 

 3.5 

4.5 

4.8 

5.2

Feb.

5.5 

5.5 

5.8 

5.8 

5.8

5.5 

6.2 

7.1 

6.5 

6.2

6.5

8.8 

7.1 

7.1

7.1

6.5 

6.5 

6.2 

6.2 

5.8

5.8 

6.2 

6.2 

6.5 

' 9.4

10 

12 

10

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Hap.

8.2 

8.2 

8.8 

8.8 

11

8.8 

8.8 

8.2 

8.2 

8.2

13 

10 

9.4 

8.8 

8.8

8.2 

8.2 

7.7 

7.7 

8.2

7.7 

7.7 

7.7 

7.7 

6.2

5.2 

4.5 

3.9 

3.5 

3.5 

3.5

Apr.

3.5 

3.5 

3.5 

3.2

3.0

3.0 

3.0 

2.9 

2.7 

2.5

2.7 

2.5 

2.5 

2.5 

2.5

2.4 

2.5 

2.7 

2.9 

3.0

2.7 

2.5 

2.4 

2.4 

2.5

2.5 

2.5 

2.5 

2.5 

2.7

Secondfoot -days

23.7 

27.1 

62.9

1,906.9

116.8 

193.8 

238.3 

82.2 

129.7 

90.3 

96.1 

84.9 

94.8

1,240.6

May

2.9 

3.0

3.0 

3.0 

3.0

3.0 

2.9 

3.0 

2.9 

2.9

2.7 

2.7 

2.9 

3.0 

3.9

4.5 

4.8 

4.8 

9.4 

9.4

7.1 

6,2 

4.8 

4.5 

4.5

4.2 

4.2 

4.2 

4.2 

4.2 

3.9

Maximum

1.0 

1.0

7.7

25

13 

12 

13 

3.5 

9.4 

3.9 

3.2 

3.5 

4.2

13

June

3.9 

3.5 

3.5 

3.2 

3.0

3.0 

3.0 

3.0 

2.9 

2.9

3.0 

3.0 

3.5 

3.5 

3.5

3.5 

3.5 

3.2 

3.2 

3.2

2.9 

2.9 

2.5 

2.4 

2.2

2.0 

2.2 

2.5 

2.7 

3.0

Minimum

July

3.0 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.2 

3,2

3.2 

3.0 

2.9 

2.9 

2.9

2.9 

2.9 

3.0 

2.9 

3.2

3.2 

3.2 

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.0 

3.0 

2.9

0.6 

.6 

.9

.6

2.0 

5.5 

3.5 

2.4 

2.7 

2.0 

2.9 

2.2 

2.9

.6

Aug.

2.7 

2.7 

2.7 

2.7 

2.7

2.5 

2.4 

3.0 

3.2 

3.5

3.S 

3.ii 

3.0 

3.0 

2.9

2.7 

2.7

2.7 

2.7 

2.5

2.5 

2.4 

2.4 

2.4 

2.4

2.2 

2.4 

2,5 

2.9

2.9 

2.9

Mean

0.76 

.90 

2.03

5.21

3.77 

6.92 

7.69 

2.74 

4.18 

3.01 

3.10 

2.74 

3.16

3.40

Sept.

2.9 

3.0 

2.9 

3.0 

2.9

2.9 

2.9 

3.0 

3.0 

3.2

3.2 

3.2 

3,2 

3.2 

3.2

3.2 

3.2 

3.E 

3.9 

3.9

4.2 

3.5 

3.2 

3.O 

3.0

3.0 

3.0 

3.0 

2,9 

2.9

Runoff In 

acre-feet

47 

54

125

3,789

232 

384 

473 

163 

257 

179 

191 

168 

188

2,460
110 LOS ANGELES RIVER BASIN

Tujunga Creek below Hansen Dam, Calif.

Location.- Water-stage recorder and sharp-crested weir, lat. 34°15'31", long. IWSS'll", 

at lower end of outlet structure of Hansen Dajn, in Ex Mission San Fernando Grant, in 

city of Los Ange-les, 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 1949 in reports of Geological Survey.

April 1932 to September 1940 (fragmentary) and October 1940 to September 1949 in Annual 

Reports of Los Angeles County Flood Control District.

Extremes.- Maximum discharge during year, 0.5 second-foot Apr. 1 (gage height, 0.23 

root); no flow on many days.

1940-49: 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 

riood-control dam.

Cooperation.- Gage-height record furnished by Corps of Engineers.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

El 

22 

23 

E4

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

.03

o

0 

0 

0

Jan.

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

Feb.

lendar year 194E 

ary

h. ......................................

ter year 1948-49 .......................

Mar.

0.04 

.02 

.03 

.06 

.05

.03 

.02 

.02 

.04 

.08

.06 

.05 

.04 

.03 

.04

.04 

.05 

.04 

.05 

.03

.02 

.02 

.02 

.02 

.02

.02 

.01 

.01 

0 

0 

0

Apr.

0.04 

.05 

.04 

.03 

.02

.02 

.02 

.03 

.03 

.01

0

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

.03

^ 4.47

0 

0 

.96 

.29 

0 

0 

0 

0 

0

1.28

May

Maximum

0 

0 

.03

2.3

0 

0 

.08 

.05 

0 

0 

0 

0 

0

.08

June July

Minimum

0 

0

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0

0 

.001

.012

0 

0 

.031 

.001 

0 

0 

0 

0 

0

.004

Sept.

Runoff In 

acre-feet

0 

0 

.06

8.9

0 

0 

1.9 

.6 

0 

0 

0 

0 

P

2.6
LOS ANQELES RIVER BASIN 111

Little Tujunga Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34° 16"30", long. 118°22'2Q", in Tu.lunga Grant, on 

foothill Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County.

Drainage area.- 21.0 square miles.

Records available.- December 1928 to September 1949.

Average discharge.- 21 years, 3.00 second-feet.

Extremes.- Maximum discharge during year, 0.9 second-foot May 19 (gage height, 3.13 

reec;; no flow for many months.

1928-49: Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow for several 

months each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. ii. Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

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. tfov. Dec. Jan. Feb.

Month

Octo 

Nove

Decs

, Ca

Janu 

Pebr 

Hare 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1943 

ary

ter year 1948-49 .......................

Mar. Apr.

Secondfoot -day a

0 

0 

0

4.5

0 

0 

0 

0

.1

0 

0 

0 

0

.1

May

0 

0 

0 

0 

0

0 

0 

0 

0

o 

o

0 

0 

0 

0

o

0 

0

.1

0

0 

0 

0 

0

o

0 

0 

0

o

0 

0

Maximum

0 

0

o

2.6

0 

0 

0 

0 

.1 

0 

0 

0 

0

.1

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 . 

0 

0

.01

0

0 

0 

0 

.003 

0 

0 

0

o

.0003

Sept.

Runoff In 

acre-feet

0 

0 

0

8.9

0 

0 

0 

0 

.2 

0 

0 

0 

0.

.2
112 LOS ANGELES RIVER BASIN

Haines Creek near Tujunga, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 34°15'50", long. 118°16'15", 

'in NVJ&NWf 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 3,430 feet (from topographic map).

Drainage area.- 1.2 square miles.

Records available.,- Creek: February 1917 to September 1934, October 1935 to September

^y49Y

Diversion: January 1931 to September 1949.

Average discharge.- 31 years (1917-34, 1935-49), 0.164 second-foot. Average Combined dis-

 charge 61' creek and diversion, 17 years (1931-34, 1935-49), 0.502 second-foot.

Extremes.- Maximum discharge during year not precisely determined, but known to be very

 small. No flow during October and September. i. , ,.* 

1917-34, 1935-49: Maximum discharge, 265 second-feet Mar. 2, 1938 (gage height, 

4.6 feet); maximum gage height, about 11 feet Jan. 1, 1934 (caused by debris wave 

commonly called a mud flow); no flow at times daring many years.

Remarks - Daily discharge not determined for this year. Monthly runoff computed on the

 basis of 14 discharge measurements, 3 field estimates, 3 observations of no flow, 

weather records, and variations in flow of Arroyo Seco near Pasadena. Southern California Water Co. diverts most of flow to two infiltration galleries upstream from 

this station. ., Discharge measurements of creek, in second-feet, and observations of no flow are 

given as follows:

Date

19... ...........

Discharge 

(second-feet)

007

.008

Date

VI Av ^

20.... .........

Discharge 

(second-feet)

0.007

.006

.002

.0005

.0006

.0004

*.0001

0

0

Field estimate.

Monthly discharge, water year October 1948 to September 1949

Month

October .................... , November ..............."..... ....

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

Calendar year 1948 .................

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

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

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

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

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

Water year 1948.-49 .................

Mean

-

0.0051

.

.0036

Runoff la acre-feet

Creek

0 

.06 

.2

3.7

.3 

.4 

.5 

.5 

.4 

.2 

.03 

.01 

0

2.6

Diversiont

6.4 

7.S 

8.0

118

r 7.3 

9.4 

9.3 

10 

6.6 

8.8 

6.5 

5.4 

4.7

92

Total

6.4

7.6

8-2

121

7.6 

9.8 

9.8 

10 

9.0 

9.0 

6.5 

5.4 

4.7

94

t Diversion by Southern California Water Co. Records furnished by that company.
LOS ANGELES RIVER BASIN 113

Arroyo Seco near Pasadena, Calif.

Location.- Water-stage recorder and broad^crested weir control, lat. 34°13'20", long. 

llB"iU'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 pf 1929.

Drainage area./ 16.4 square miles.

Records available.- December 1910 to September 1949.

Average discharge.- 35 years "( 1913-15, 1916-49), 10.2 second-feet.

Extremes.- Maximum discharge during year, 35 second-feet Jan. 20 (gage height, 1.60 

feet); minimum daily, 0.1 second-foot on several days in September.

1910-49: Maximum discharge, 8,620 second-feet Mar. 2, 1938, by slope-area method; 

practically no flow for several months in some years.

Remarks.- Records fair. No diversion above Station. Minor regulation at debris dam 1.5 

miles upstream.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

E7 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.3

.3 

.3 

.4 

.4 

.4 

.4

Nov.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.3 

.3

.3 

.3 

.3 

.4 

.4

.4 

.4 

.4 

.4 

.4

Dec.

0.4 

.4 

.4

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.5 

.6 

.6 

.6

-.7 

2.2 

1.4 

1.3

1.6

1.6 

1.6 

1.6 

1.4 

1.4

1.4 

1.7 

1.6 

1.4 

1.4 

1.4

Jan.

1.2 

1.2 

1.1 

1.2 

1.2

1.1 

1.0 

1.0

1.6 

1.7

2.1 

2.3 

2.5 

2.6 

2.6

3.1 

3.1 

3.3 

3.9 

22

9.3 

5.5 

5.5 

4.3 

3.9

3.3 

3.0 

2.6 

2.3 

2.2 

2.2

Feb.

2.2 

2.1 

2.1 

1.9 

1.9

1.9 

2.3 

2.6 

2.2

1.9

2.8 

5.2 

4.1 

3.5 

3.0

2.6 

2.6 

2.5 

2.5

2.5.

2.5 

2.3 

2.2 

3.6 

5.8

5.6 

14 

9.4

Month

OotO 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194(

ter year 1948-49 ........................

Peak discharge (base, ISO sec. -ft.).- Ho p

a Oage-helght record doubtful; discharge 1

Mar.

7.2 

6,5 

6.7 

7.3 

11

8.9 

8.0 

7.5 

7.2 

7.2

13 

7.5 

5-. 5 

4.9 

4,7

4.7 

4.7 

4.9 

5.9 

7.0

4.9 

4.5 

4.1 

4.3 

4.3

3.9 

3.7 

3.5 

3.0 

3.0 

3.1

Apr.

3.0 

3.0 

2.9 

2.3 

2.3

2.3 

2.3 

2.3 

2.3 

2.3

2.3 

2.3 

2.2 

2.5 

d2.5

d2.4 

d2.3 

2.3

2.5 

2.2

1.9 

1..7 

1.7 

1.6 

1.4

1.4 

1,6 

1.6 

1.6 

1.7

Secondfoot -day a

8.8 

3.8 

30.6

551.4

103.9 

97.8 

182.6 

64.7 

70.9 

37.6 

14.4 

7.6 

5.4

634.1

eak above ba 

nterpolated.

May

1.8

 1.9

2.1 

1.9 

1.7

1.6 

1.6 

1.7 

1.9 

1.9

1.9 

1.9 

2.1 

2.2 

2.1

2.1 

2.1 

2.5 

12 

5.6

3.1 

2.3 

1.8 

1.4 

1.3

1.3 

1.3 

1.4 

1.4 

1.4 

1.6

Maximum

0.4 

.4 

2.2

32

22 

14 

13 

3.0 

12 

2.1 

.8 

.3 

.3

22

se.

June

1.7 

1.9 

1.9 

1.9 

1.8

S.I 

1.9 

1.9 

1.9 

1.8

1.7 

1.7 

1.6 

1.3 

1.2

1.0 

.9 

.8 

.7 

.6

.5

.5 

.6 

.7 

.7

.8 

.9 

.9 

.9

.8

July

0.8 

.7 

.7 

.7 

.7

.7 

.7 

.5 

.6 

.6

.6 

.5 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.4 

.3

.4 

.4 

.4 

.3

Minimum

0.2 

.3 

.4

.1

1.0 

1.9 

3.0 

1.4 

1.3 

.5 

.3 

.2 

.1

.1

Aug.

0.3 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.3

.3

.3 

.3

.3 

.3

.3

.3 

.3 

.£ 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

Mean

0.28 

.33 

.99

1.51

3.35 

3.49 

5.89 

2.16 

2.29 

1.25 

.46 

.25 

.18

1.74

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.1 

.2 

.2 

.2

.2 

.3

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1

.2

.2 

.2

.1 

.1

Runoff In 

acre -feet

17 

19 

61

1,090

206 

194 

362 

* 126 

141 

7S 

29 

15 

11

1,260
114 LOS ANGELES RIVER BASIN 

Rio Hondo near Montebello, Calif.

Location.- Water-stage recorder, lat. 34°01'55", long. 118"04 I 15", in Potrero Grande 

urant, at Montebello oil field, about 1,000 feet upstream from Mission Bridge and 8 

miles northeast of Montebello, Los A'ngeles County. Altltjide of gage, about 800 feet.

Records-available.- October 1988 to'September 1949. 

Average discharge.- 21 years, 62.0 second-feet.

Extremes.- Maximum discharge during year, 984 second-feet Dec. 17 (gage height, 5.46 

i'eet); minimum dally, 4.8 second-feet Sept. 8, 10.

1988-49: Maximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 secondfoot Dec. 1, 1933.

Cooperation.* Records furnished by Los Angeles County Flood Control District, through 

H. is. neager, chief engineer.

Discharge, In second-feet, water year October 1948 to September 1949

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

Got.

9.9 

7.8 

7.4 

7.4 

7.8

8.6 

8.2 

7.4 

7.4 

7. &

8.6 

8.6 

8.6 

8.2 

9.0

8.6 

13 

18 

11 

9.9

9.9 

9.O 

8.2 

7.8 

11

9.0 

9.9 

9.9 

9.9 

28 

9.0

8.6 

9.0 

9.9 

9.0 

8.6

8.6 

9.0 

9.9 

11 

9.9

11 

9.9 

9.9 

9.9 

11

12 

13 

13 

12 

13

9.9 

12 

12 

13 

9.9

12 

9.9 

9.9 

9.9 

11

11 

11 

35 

12 

9.0

9.9 

11 

11 

12 

12

14 

14 

13 

13 

9.9

14 

227 

12 

8.6 

8.2

9.0 

56 

13 

11 

11

122 

167 

13 

12 

12 

11

14 

13 

13 

13 

14

14 

13 

12 

24 

13

79 

79 

73 

31 

15

14 

14 

15 

181 

269

23 

79 

34 

21 

16

15 

14 

14 

13 

13 

14

14 

15 

52 

21 

19

16 

101 

21 

18 

17

65 

14 

12 

12 

13

12 

11 

9.9

12 

11

12 

11 

11 

52 

14

79 

39 

11

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

12 

13 

14 

118 

21

S.6 

28

12 

14 

51

172 

13 

14 

14 

13

14 

14 

14 

30 

13

12 

12 

12 

16 

14

12 

11 

11 

12 

12 

12

12 

12 

11 

9.9 

9.9

9.9 

9.9 

9.9 

9.0 

8.6

8.2 

8.6 

9.0 

9.9 

12

11 

9.0 

9.9 

9.9 

9.0

8.6 

8.2 

7,8 

8.2 

8.6

9.0 

9.0 

8.6 

8.6 

9.0

Secondfoot -days

304.8 

317.7 

904.6

10,351.4

1,169 

694.9 

758.6 

284.2 

383.0 

257.3 

190.6 

182.4 

171.3

5,598.4

May

S.6 

8.6 

9.0 

9.9 

9.0

9.0 

9.0 

8.6 

8.2 

8.2

8.2 

9.9 

9.0 

11 

9.9

11 

31 

30 

74 

9.9

8.2 

8.6 

8.2 

7.8 

8.2

8.2 

8.2 

8.2 

S.2 

8.6 

8.6

Maximum

28 

13 

227

548

269 

101 

172 

12 

74 

14 

7.4 

6.6 

7.0

269

June

6.6 

8.6 

8.2 

8.2 

8.2

7.8 

7.8 

8.2 

8.6 

12

14 

14 

14 

11 

8.2

7.4 

7.4 

7.0 

7.0 

6.6

6.6 

6.6 

7.4 

9.9 

9.0

7.8 

7.4 

7.0 

6.6 

6.2

July

6.2 

6.2 

6.6 

6.6 

6.2

6.2 

7.4 

7.4 

7.4 

7.0

6.6 

6.6 

6.2 

6.6 

6.2

6.6 

6.2 

5.4 

5.8 

5.4

5.0 

5.4 

5.0 

5.4 

5.0

5.0 

6.2 

6.2 

6.2 

6.2 

6.2

Minimum

7.4 

8.6 

8.2

6.6

12 

9.9 

8.6 

7.8 

7.8 

6.2 

5.0 

5.0 

4.8

4.8

AUg.

6.1 

6.1 

6.1 

6.0 

6.0

6.0 

5.9 

5.9 

5.9 

5.8

5.3 

5.8 

5.8 

8.2 

6.6

5.8 

5.8 

6.2 

5.8 

5.8

6.2 

5.4 

5.8 

5.8 

. 6.2

6.2 

5.8 

5.8 

5.0 

5.0 

5.8

Mean

9.83 

10.6 

29.2

28.3

37.7 

24.8 

23.8 

9.47 

12.4 

8.58 

6.15 

5.88 

5.71

15.3

Sept.

5.8 

5.8 

6.2 

6.2 

7.0

4.9 

4.9 

4.8 

4.9 

4.8

5.4 

6.2 

6.6 

6.6 

6.2

6.6 

6.2 

5.0 

5.0 

5.0

5.4 

5.4 

5.4 

5.8 

5.4

6.6 

6.8 

5.8 

5.4 

5.4

Runoff in 

acre-feet

605 

630 

1,790

20,530

2,320 

1,380 

1,460 

584 

760 

510 

378 

362 

340

11,100
LOS ANGELES RIVER BASIN 115

Rio Hondo near Downey, Calif.

Location.- Water-stage recorder, lat. 33°56'40", long. 118°Q9'50", in San Antonio Grant, 

on stewart and Gray Road Bridge, 0.5 mile upstream from mouth and 1.5 miles west of 

Downey, Los Angeles County. Datum of gage is 90.20 feet above mean sea level (levels 

by Los Angeles County Flood Control District).

Records available.- March 1928 to September 1949. , 

Average discharge.- 21 years, 31.6 second-feet. ^

Extremes.- Maximum discharge during year, 624 second-feet Jan. 20 (gage height, 5.65 

reet j; no flow during several days.

1928-49: Maximum discharge, 24,400 second-feet Mar. 3, 1938 (gage height, 13.5 

feet); no flow during part of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. Ji. Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.3 

.9 

.4 

.1 

.6

.1 

.2 

.5 

.2 

1.0

.9 

1.1 

1.6 

1.4 

1.2

1.0 

.8 

.6 

.4 

1.2

1.1 

2.3 

l.S 

1.3 

1.1

1.9 

1.9 

2.8 

2.8 

1.2 

1.9

Nov.

3.8 

3.6 

3.6 

2.6 

3.1

1.9 

2.2 

4.3 

2.6 

1.6

2.5 

1.8 

1.5 

1.9 

1.2

1.5 

2.2 

1.2 

2.2 

2.3

2.8 

2.6 

1.9 

2.2 

0

0 

1.5 

1.3 

1.2 

2.5

Dec.

2.0 

2.0 

2.2 

.8 

2.3

2.3 

1.9 

3.1 

3.1 

1.0

1.6 

1.5 

1.2 

1.9 

1.0

1.6 

51 

2.6 

.1 

0

.1 

1.5 

0 

0 

0

0 

58 

2.6 

1.1 

.2 

0

Jan.

0 

0 

O

o

0

0 

0 

0 

0 0'

.4 

0 

15 

0 

0

0 

0 

0 

0 

268

1.5 

1.8 

1.5 

.1 

0

0 

0 

0 

0 

0 

0

Feb.

2.7 

0 

.3 

.3 

0

0 

.7 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2.0 

4.5

2.6 

14 

.1

Month

Goto 

Hove 

Dece

Ca

jatiu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

0.1 

.2 

.1 

12 

21

.1 

0 

0 

0 

0

62 

2.2 

.3 

0 

0

0

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

1.6 

1.3 

1.1 

0 

0

1.2 

1.3 

1.2 

.9 

0

0 

0 

0 

.7 

.9

.9 

0 

0 

.9 

1.1

.7 

.7 

.6 

.1 

0

.5 

.7 

.6 

1.2 

1.5

Secondfoot-days

35.6 

63.6 

146.7

1,371,9

288.3 

27.2 

98.0 

19 .-7 

23.8 

28.2 

9.2 

8.4 

3.3

752.0

May

1.2 

1.2 

1.8 

1.5 

1.9

1.8 

.7 

1.0 

1.3 

.6

.7 

.7 

.2 

1.0 

1.0

.1 

.6 

0 

1.2

.1

0 

0 

0 

0 

0

.1

.3 

.5 

1.0 

1.5 

1.8

Maximum

2.8 

4.3 

58

237

268 

14 

62 

1.6 

1.9 

2.2 

1.6 

1.8 

1.0

268

June

2.2 

1.6 

.3 

.1 

.5

1.3 

1.1 

1.3 

1.0 

1.2

1.3 

1.6 

1.1 

1.5 

.5

.1 

1.0 

1.8 

1.9 

1.3

.6 

.2 

.2 

.2 

.2

1.2 

1.0 

1.3 

.6 

0

July

0 

0 

0 

0 

0

.2 

.4 

»9 

.1 

.1

.5 

1.2 

.6 

.5 

.1

.2 

.2 

.2 

.5 

0

.1 

.6 

0 

.3 

1.6

.2 

0 

0 

.6 

.1 

0

Minimum

0.1 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0.2 

.1 

0 

0 

0

0 

0 

.1 

0 

0

0 

1.8 

1.1 

1.2 

.7

.8 

.8 

.1 

0 

.3

.1 

0 

0

.1

0

.1

.5 

.1 

.1 

.2 

0

Mean

1.15 

2.12 

4.73

3.75

9.30 

.97 

3.16 

.66 

.77 

.94 

.30 

.27 

.11

2.06

Sept.

0 

0 

0 

.1 

.2

.1 

0 

0

.1

0

0 

0 

.0 

0 

0

..1 

.1 

.1

.3 

.6

1.0 

 2 

.1 

.2 

.1

0 

0 

0 . 

0 

0

Runoff In 

acre-feet

71 

125 

291

2,720

572 

54 

194 

39 

47 

56 

18 

17 

6.5

1,49O ,
116 LOS ANGELES RIVER BASIN

SawDlt Creek near Monrovia, Calif.

Location,- Water-stage recorder and broad-crested weir, lat. 34°10'2S", long. 117"59' 80", 

 in NKtSWt sec. 13, T. 1 N., R. 11 W., 0.1 mile downstream from Monrovia Creek, 0.3

mile downstream from Sawpit Dam, and 1.5 miles north of Monrovia. Altitude of gage,

about 1,100 feet (from topographic map).

Drainage area.- 5.3 square miles.

Records available.- November 1916 to September 1949.

Average discharge.- 33 years (1917-49), 1.25 second-feet; including diversion by Monrovia 

pipe line, 32 years, 2.74 second-feet.

Extremes.- Maximum discharge during year, 16 second-feet Feb. 9 (gage height, 0.76 foot); 

no now during several periods.

1916-49: Maximum "discharge, about 2,000 second-feet Apr. 7, 1926, estimated from 

flow of Rogers Creek; no flow during parts of most years.

Remarks.- Records good. Flow regulated by Sawpit Dam on Sawpit Creek; diversion by City 

or Monrovia from Monrovia Creek.

Cooperatio'n.- 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 194s to September 1949

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. Dec. Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

,1

.1

.3.2

0

0

0

0

0

0

0

0

Month

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

Noyenber .........................

Deoewber .........................

Calendar year 1943 ............

Janu 

Febr

ary

uarv ........

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

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

Mar may ..............................

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

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

Augu 

Sept

St ...........................

eober ........................

Water year 1948-49 ............

Feb.

0

0

0

0

0

0

0

0

7.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_-

Secondfoot-days

0

0

0

1.2

.7 

7.2

0

0

0

.?

0

0

0

8.1

Mar. Apr.

MaxiBun

0

0

0

,4

.3

7.1

0

0

0

.2

0

0 

0

7.1

May

Mlnivun

0

0

0

0

0 

0

0

0

0

0

0

0 

0

0

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

Mean

0

0

0

.003

.02

. 26

0

0

0

.01

0

0 

0

.02

July

^

Aug.

Runoff in 

acre-feet

0

0

0

2.4

1.4 

14 Q

0

0

.4

0

0

0

15.8

Sept.

Diversion in 

acre-feett

52

54

58

774

70 

74

1 1Q 4.A3

80

74

COoy 

49

45 

41

775

t Diversion to Monrovia pipe line.
LOS ANGELES RIVER BASIN 117

Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder, lat. 34°11 I 30", long. 118°01'00", In SW$NE$ sec. 10, 

mm., R. 11 W., at h^ad of Hermits Palls, 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 1949.

Average discharge.- 33 years, 6.15 second-feet.

Extremes. - Maximum discharge during year, 32 second-feet Jan.. 20 (gage height, 1.41 

feet j; minimum discharge, 0.1 second-foot on several days in August and September".

1916-49: Maximum discharge, about 5,200 second-feet Mar. 2, 1938, based on inflow 

to Big Santa Anita flood-control reservoir; practically no flow Aug. 18 to Sept. 14, 

1929.

Remarks.- Records good. No diversion above station.

Cooperation.- Four discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Discharge, In second-feet, water year October 194S to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.2 

.2 

.3 

.3

.4 

.3 

.3 

.4 

.3

.4 

.4 

.5 

.5 

.5

.5 

.5

.7 

.7 

.7

.6 

.5 

.4 

.4 

.4

.4 

.4 

.6 

.7 

.8 

.7

Octo 

Nove 

Dece

Ca

Janu, 

Febn 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Nov.

0.6 

.6 

.6 

.6 

.6

.5 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.5 

.5.s

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.4

Dec.

0.5 

.5 

.7 

1.0 

.8

.7

.7

!e 

.a

5.1 

2.0 

1.4 

1.1

1.0 

1.2 

1.2 

1.1 

1.0

1.3 

3.9 

2.0 

1.7

1.5 

1.4

Jan.

1.3 

1.2 

1.1 

1.1 

1.1

1.1 

1.1 

1.0 

1.6 

1.3

1.4 

1.6 

2.4 

2.3 

2.0

1.6 

1.5 

1.4 

2.0 

13

, 6.3 

6.0 

5.7 

4.1 

3.4

2.9 

2.7 

2.4 

2.3 

2.2 

2.1

Feb.

2.0 

1.9 

2.2 

2.1 

2.0

2.0 

2.4 

2.4 

2.2 

2.1

3.9 

4.6 

3.6 

3.2 

3.1

2.8 

2.7 

2.6 

2.6 

2.7

2.7 

2.7 

2.7 

4.7 

5.7

6.6 

9.6 

7.3

Month

Lendar year 194S

ter year 1948-49 .......................

Mar.

6.4

5.9 

5.9 

6.7 

7.3

6.2 

6.2 

5.5 

5.0 

S.O

9.4 

6.4 

5.9 

5.2

5.0

4.6 

4.5 

4.3 

4.7 

4.5

4.1 

3.9 

3.7 

3.7 

3.7

3.6 

3.2 

3.2 

3.1 

2.9 

2.9

Apr.

2.8 

2.8 

2.8 

2.6 

2.6

2.4 

2.4 

2.3 

2.2 

2.1

2.0

1.8 

1.9 

1.9 

2.0

2.0 

1.9 

1.9 

2.1 

2.0

1.8

1.7 

1.6 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

Secondfoot -day s

14.3 

14.4 

36.3

483.1

86.2 

95.1 

152.6 

61.5 

54.9 

27.6 

14.1 

7.2 

4.6

568.8

Bay

1.6 

1.6 

1.7 

1.6 

1.5

1.2 

1.1 

1.2

1.3 

1.4

1.4 

1.3 

1.4 

1.6 

1.7

1.7 

1.9 

3.2 

5.2 

3.1

2.4

2.1 

1.9 

1.5 

1.5

1.4

1.5 

1.5 

1.5 

1.4 

1.5

Maximum

0.8 

.6 

3.9

12

18 

9.6 

9.4 

2.8 

5.2 

1.5 

.8 

.3 

.2

18

June

1.5 

1.4 

1.1 

1.1 

1.1

1.0 

1.0 

1.1 

1.1 

1.0

1.0 

1.0 

1.0 

1.0 

.9

.8 

.9 

.9 

.9 

.8

.6 

.6 

.6 

.6

.7

.7 

.8 

.9 

.8 

.7

Minimum

July

0.8 

.7 

.6 

.6

.6

.6 

.6 

.6 

.6 

.6

.6 

.5 

.4 

.4 

.4

.4 

.4 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.4 .4' 

.4 

.4 

.4 

.3

0.2 

.4

.5

.1

1.0 

1.9 

2.9 

1.6 

1.1 

.6 

.3 

.1 

.1

.1

Aug.

0.3 

.3 

.2 

.2

.2

.2 

.2 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.2 

.2 

.2 

.2 

.1

Mean

0.46 

.48 

1.17

1.32

2.78 

3.40 

4.92 

2.05 

1.77 

.92 

.45 

.23 

.15

1.56

Sept.

0.1 

.1a .1.1

.1 .1 .1 .1 .1

.1 .1

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

.2 

.2 

.2 

.2 

.2

Runoff in 

acre-feet

28 

29 

72

958

171 

189 

303 

122 

109 

55 

28 

14 

9.1

1,130

Peak discharge (base, 40.sec.-ft,),- Mo peak above base. 

947809 0-51-9
118 LOS ANGELES RIVER BASIN

Little Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder and concrete control, lat. 34°11'15", long. 118°02'35" 

near center of NW{ sec. 9, T. IN., R. 11 W., 1.3 miles upstream from Sierra Madre 

Dam and 2 miles north of Sierra Madre. Altitude of gage, about 2,200 feet (from 

topographic map).

Drainage area.- 1.9 square miles.

Records available.- April 1916 to September 1949.

Average discharge.- 32 years (1916-25, 1926-49), 0.95 second-foot.

Extremes.- Maximum discha'rge during year, 3.1 second-feet Jan. 20 (gage height, 0.94 

I'oot); minimum daily, less than 0.1 second-foot on many days.

1916-49: 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 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

IT 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

,60.06

. e.08

.1 

.1 

.1

Nov.

0.1 

.1 

.1

.1

.1

.1 

.1

. e.08

.1 

.1

e.OS

Dec.

0.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.4 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.S 

.3 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3

.3

.2 

.2 

.2 

.4 

1.7

,8 

.8 

.7 

.6 

.5

.4 

.4 

.4 

.3 

.3 

.3

Feb.

0.3 

.3 

.3 

.3 

.3

.3 

.4 

.3 

.3 

.3

.6 

.5 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.7 

.6

.9 

I.I 

.9

Month

3cto 

love 

Dfeoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ber- year 1948-49 .......................

Mar.

0.8 

.7 

.7 

.9 

.9

.8 

.8

.7 

.7 

.7

1.1 

.8 

.7 

.7 

.7

.6 

.6 

.5 

.6 

.6

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.4 

.4 

.4

Apr.

0.4 

.4 

.4 

.4 

.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

Secondfoot -days

2.26 

2.58 

5.3

71.71

11.5 

12.1 

19.8 

9.2 

10.0 

5.1 

2.61 

1.38 

.69

82.52

May

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.3 

.4 

.6 

.9 

.6

.5 

.4 

.3 

.3 

.3

.3 

.2 

.3 

.3 

.3 

.3

Maximum

0.1 

.1 

.5

2.0

1.7 

1.1 

1.1 

.4 

.9. 

.3 

.1

1.7

June

0.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.1

.1 '.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.2 , 

.2 

.2

.1

Minimum

0.1

-

.£ 

.2 

.4 

.2 

.2 

.1

-

July

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

e.OS

e.07 

e.06

Aug.

L eO.05 

e.06

e.04.

e.03 

e.02

. Mean

0.073 

.086

.17

.196

.37 

.43 

.64 

.31 

.32 

.17 

.084 

.045 

.023

.226

Sept.

eO.02

6.03 

6.02

Runoff in 

acre-feet

4.5 

5.1 

11

142

23 

24 

39 

18 

20 

10 

5.2 

2.7 

1.4

164

Peak discharge (baa 

e Dally discharge 1

e, 7.0 see.-ft.).- Ho peak above base.

 ge less than 0.1 sec.-ft.
LOS ANOELES RIVER BASIN 119

Eaton Creek near Pasadena, Calif.

Location,- Water-stage recorder and broad-crested weir, lat. 34°11 I 40", long. US'Oe'lS", 

 in Stfi 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 1949.

Average discharge.- 31 years, 2.60 second-feet. Average combined discharge of creek and 

upstream diversions above this &tatio"n, 31 years, 3.91 second-feet.

Extreme s.- Maximum discharge during year, 18 second-feet Jan. 20 (gage height, 0.76 foot); 

no now during most of year.

1918-49: 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 innitration gallery diversion downstream from this station. The upstream diversions 

are shown in the monthly table. The downstream diversion is not included in this record; for some .past years it was included, In the current year it amounted to 12.4 percent of the upstream diversions.

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Ncv. Dec. Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

9.1

2.3 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Month

Goto 

Now 

Dece

Ca

Jaau 

Febr 

Marc

*P*

Jane 

July 

Angu 

Sept

Wa

b«r ..........................

 her .........................

lendar year 1948 

ary

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

enber ........................

ter year 1948-49 ............

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.6 

.7 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1.3 

3.1 

0

Secondfoot-days

0 

0 

0

23.5

11.4 

5.7 

.4 

0 

0 

0 

0 

0 

0

17.5

Mar.

0 

0 

0 

0

.2

0 

0 

0 

0 

0

.2 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr. May

MaxiBun Minima

0 0 

0 0 

0 0

13 0

9.1 0 

3.1 0 

.2 0 

0 0 

0 0 

0 0 

0 0 

0 0 

0 0

9.1 0

June

»

Mean

0 

0 

0

.06

.37 

.20 

.01 

0 

0 

0 

0 

0 

0

.05

July Ang. Sept.

R,m_-f , Diversions Runoff in j 

aere-feet acre. feetT

0 IB 

0 17 

0 33

47 541

23 77 

11 96 

.6 193 

0 65 

0 68 

0 40 

0 28 

0 14 

0 11

35 652

Peak discharge (base, 55 sec. -ft. K- Nc peak above base.

t Diversion by city of Pasadena. Records furnished by that city.
120 LOS ANGELES RIVER BASIN

Mission Creek near MontebellQ, Calif.

Location.^ Water-stage recorder, lat. 34C Q1'45", long. 118°04'07", in Paso de Bartolo 

Want, at San Gabriel Boulevard Bridge, 2 miles northeast of- Montebello, Los Angeles 

County,

Records available.- October 1932 to September 1949 in reports of Geological Survey. 

July lyaa to September 1932 (weekly discharge measurements only prior to September 

1929) in files of office of Los Angeles County Flood Control District.

Average discharge.- 19 years (1929-37, 1938-49), ly.2 second-feet.

Extremes.- Maximum discharge during year, 27 second-feet Jan. 20 (gage height, 6.56 feet); 

minimum daily discharge, 10 second-feet July 82-27, 29-31.

1929-49: Maximum discharge not determined, occurred Mar. 2, 1938. A discharge of 

336 second-feet occurred Feb. 28, 1944 (gage height, 10.75 feet). Minimum discharge. 

4.8 second-feet Oct. 4, 1935.

Cooperation- Records furnished by Los Angeles County Flood Control District, through 

H. E. HSdger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

19 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

13 

13 

13 

14 

14

14 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15

15 

15

15

15 

15 

15 

15 

15

15 

15

15 

15 

15 

15

Nov.

15 

15 

15 

15 

15

15 

15 

15 

15

15

15

15 

15 

15 

16

16 

16 

16 

16

16

16 

16 

16

15 

15

15 

16 

16 

16

15

Dec.

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15

15 

15

15 

17 

17 

16 

16

16 

. 16 

18 

18 

18

18 

18 

18 

18 

IS 

18

Jan.

18 

18 

18 

18 

18

18 

18 

18 

18 

18

18 

19 

19 

19 

19

19 

19 

18 

19 

24

19 

19 

19 

19

19

19

19 

19 

18 

18

18

Feb.

17 

17 

18 

17 

18

17 

19 

19 

18 

18

18 

18 

18 

17 

17

17

16 

17 

17

17

17 

17 

17 

17 

17

17

17 

16

Month

Qcto 

Move 

Dece

C9

Janu 

Febr 

Mare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ....,......,.,.

Mar.

16 

16 

16 

17

17

17 

17 

17 

17 

18

18 

18 

18 

18 

18

18

18 

18 

17 

17

17 

16 

16 

16 

16

16 

16 

16 

16 

. 16 

16

Apr.

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

16 

16

16 

16 

16 

15 

IS

15 

15 

15 

15

15

15

15 

15 

15 

15

Secondfoot-days

456 

462 

500

6,118

579 

485 

523 

468 

448 

393 

346 

341 

359

5,360

May

15 

15 

15 

14 

14

14 

14 

14 

14 

14

15 

15 

15 

15 

14

15 

15 

15 

16 

16

15 

15 

15 

14 

14

14 

14 

14 

13 

13 

13

Maximum

15 

16 

18

26

24 

19 

16 

16 

16 

15 

12 

11 

12

24

June

13 

12 

12 

13 

13

13 

13 

13 

13

13

14 

14 

14 

14 

15

15

15 

14 

14 

14

13 

13 

12 

12 

12

12 

12 

12 

12 

12

July

Minimum

13 

15 

15

13

18 

. 16 

16 

15 

13 

12 

10 

11 

11

10

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

11

11 

11 

11 

H 

11

11 

10 

10 

10 

10

10 

10 

11 

10 

10 

10

Aug,

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

. 11

11 

11 

11 

11 

11

Mean

14.7 

15.4 

16.1

16.7

18.7 

17.3 

16.9 

15.6 

14.5 

13.1 

11.2 

11.0 

12.0

14.7

Sept.

11 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

Runoff in 

acre-feet

904 

916 

992

12,140

1,150 

962 

1,040 

928 

889 

. 780 

686 

676

m

10,640
 BALLONA CREEK BASIN 121

Ballona Creek near Culver City, Calif.

Location.- Water-stage recorder, lat. 33°59'50", long. 118°24'10", in La Ballona Grant; 

on Sawtelle Boulevard Bridge, 1.5 miles south of Culver City, Los Angeles County. 

Altitude of gage, about 40 feet.

Drainage area.- Ill square miles.

Records available.- February 1928 to September 1949.

Average discharge.- 21 years, 35.3 second-feet.

Extremes.- Maximum discharge during year, 5,740 second-feet Feb. 7 (gage height, 10.40 

feet); minimum daily, 2.8 second-feet Nov. 21, Apr. 13.

1928-49: Maximum discharge, 19,000 second-feet Mar. 2, 1938; no flow during parts 

of some years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. ii. Hedger, chief engineer.

Revisions (water year).- W 881: 1938.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 . 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.0 

8.0 

6.3 

7.1 

6.2

6.2 

6.9 

5.6 

5.6 

4.9

9.0 

7.0 

7.0 

7.0 

6.3

5.6 

8.0 

29 

9.0 

10

9.0 

6.3 

7.0 

5.6 

7.0

7.0 

9.0 

10 

8.0 

8.0 

6.3

Nov.

7.0 

7.0 

6.3 

6.3 

8.0

7.0 

6.3 

6.3 

8.0 

6.3

5.6 

8.0 

6.3 

5.6 

6.3

6.3 

5.6 

7.0 

9.7 

4.9

2.8 

4.9 

5.6 

5.6 

5.6

7.0 

5.6 

5.6 

8.0 

8.0

Dec.

8.0 

7.0 

33 

9.0 

7.0

6.3 

7.0 

10 

10 

8.0

7.0 

5.6 

6.3 

10 

6.3

191 

668 

7.0 

4.2 

7.0

7.0 

68 

13 

7.0 

6.5

336 

256 

12 

7.8

6.5 7.d

Jan.

6.6 

5.6 

4.9 

5.6 

5.6

5.6 

7.0 

7.0 

7.0 

20

311 

201 

215 

38 

7.8

4.9 

6.3 

7.0 

534 

550

11 

184 

11 

14 

6.3

7.0 

5.6 

5.6 

5.6 

5.6 

6.3

Feb.

7.8 

6.3 

262 

7.-0 

6.3

4.2 

452 

8.5 

7.0 

5.6

87 

9.2 

4.9 

5.6 

6.3

6.3 

4.2 

6.3 

4.2 

3.5

S.6 

4.9 

5.6 

90 

6.3

100 

15 

4.2

Month

Goto 

Hove 

Dece

Ca

Janui 

Febri 

Marc 

Apri 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

5.6 

7.0 

31 

195 

15

4.9 

36 

7.0 

7.0 

292

' 233 

4.9 

4.2 

4.2 

4.2

6.3 

4.9 

5.6 

53 

5.6

 4.9 

4.9 

12 

7.8 

7.8

4.9 

4.2 

5.6 

5.6 

4.2 

4.9

Apr.

5.6 

7.0 

5.6 

7.8 

7.8

7.8 

6.3 

6.3 

5.6 

4.9

7.0 

7.0 

2.8 

4.2 

6.3

5.6 

4.9 

6.4 

4.3 

3.4

5.3 

6.8 

5.9 

5.1 

6.6

6.4 

6.4 

5.5 

5.5 

4.8

Second - 

foot-days

244.9 

192.5 

1,744.1

7,437.8

2,211.9 

1,135.8 

993.2 

174.9. 

504.3 

268.2 

213.4 

234.0 

192.2

8,109.4

nay

4.4 

6.4 

4.4 

5.3 

6.2

5.3 

4.8 

3.9 

5.5 

5.9

6.4 

6.4 

6.4 

4.3 

5.7

12 

36 

92 

106 

24

13 

11 

12 

12 

13

16 

23 

17 

11 

14 

11

Maximum

29 

9.7 

668

1,000

550 

452 

292 

7.8 

106 

12 

11 

13 

9.1

668

June

6.8

7.0 

8.0 

8.8

11

12 

12 

11 

7.7 

8.8

8.2 

7.0 

7.5 

7.5 

8.2

6.6 

6.6 

6.8 

5.7 

7.0

7,5 

8.0 

9.1 

9.4 

11

12 

11 

12 

12 

12

July

9.1 

11 

9.7 

8.8 

8.8

8..0 

5.1 

7.0 

6.8 

6.4

8.0 

6.8 

6.8 

6.6 

7.5

7.0 

6.2 

6.8 

7.0 

7.0

6.6 

6.6 

5.9 

S.I 

5.3

5.3 

5.B 

4.6 

5.7 

6.2 

6.2

Minimum

4.9 

2.8 

4.2

2.8

4.9 

3.5 

4.2 

2.8 

3.9 

5.7 

4.6 

3.8 

4.2

2.8

Aug.

8.4 

8.8 

6.6 

5.5 

7.3

5.5 

6.8 

12 

11 

10

10 

13 

11 

8.8 

9.7

11 

8.4 

7.3 

6.8 

6.2

4.3 

9.5 

6.6 

5.9 

5.5

4.2 

4.0 

3.8 

4.4 

5.1 

6.6

Mean

7.90 

6.42 

56.3

20.3

71.4 

40.6 

32.0 

5.83 

16.3 

8.94 

6.86 

7.55 

6.41

22.2

Sept.

5.5 

4.8 

5.3 

5.1 

4.6

5.7 

7.0 

7.7 

7.3 

8.0

6.4 

7.3 

7.3 

5.4 

5.7

6.6 

7.5 

7.0 

7.7 

8.2

8,6 

9.1 

7.7 

6.8 

5.7

6.4 

4.8 

4.6 

4.2 

4.2

Runoff in 

acre-feet

486 

382 

3,460

14,760

4,590 

2,250 

1,970 

347 

1,000 

532 

423 

464 

381

16,080
122 TOPANGA CREEK BASIN

Topanga Creek near Topanga Beach, Calif. 

\

Location.- Water-stage recorder, lat. 34°03'50", long. 118 0 35'10", in Boca de Santa 

Monica Grant, at highway bridge, 2 miles north of Topanga Beach, Los Angeles County.

Drainage area.- 17.9 square miles.

Records available.- January 1930 to September 1938; October 1939 to September 1949.

Average discharge.- 18 years (1930-38, 1939-49), 5.90 second-feet.

Extremes.- Maximum discharge during year, 63 second-feet Dec. 26 (gage height, 3.45 

reetj; minimum daily, 0.01 second-foot at times.

1930-38, 1939-49: Maximum discharge, 7,960 Second-feet Mar. 2, 1938; no flow at 

times.

Cooperation.- Recc

H. E. Meager, c

Disc

Day

1

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.01 

.02 

.02 

.02 

.02

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.02 

.02 

.02

.02 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

Nov.

0.02 

.03 

.03 

.03 

.02

.02 

.02 

.02 

.02 

.03

.03 

 .03 

.03 

.03 

.03

.03 

.03 

.03 

.04 

.04

.04 

.04 

.04 

.04 

.OS

.08 

.08 

.08 

.04 

.04

rds furnished by Los Angeles County Flood Control District,- through 

hief engineer.

harge. In second-feet, water year October 1948 to September 1949

Dec.

0.08 

.08 

.1 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

3.0 

.4 

.2 

.2

.2 

.4 

.2

.1 

.1

5.0 

3.0 

.3 

.2 

.1 

.1

Jan.

0.1 

.1 

.1 

.04 

.1

.1 

.1 

.04 

.04 

.04

.2 

.2 

.2 

.2 

.2

.1 

.1 

.2 

1.1 

2.7

.5 

2.0 

1.2 

.8 

.3

.2

.1 

.1 

.1 

.1 

.1

Feb.

0.1 

.1 

.4 

.2 

.2

.2 

.8 

.3 

.2

,1

.2 

.2 

.1 

.1 

.1

.1 

.04 

.02 

.02 

.02

.02 

.01 

.01 

.1 

.1

.04 

.03 

.02

Month

Ooto 

Hove

Deee

Ca

Janui 

FebP 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0.01 

.01 

.6 

.6 

.4

.2 

.2 

.2 

.2 

.2

1.5 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1 

.1

Apr.

0.1 

.1 

.1 

.1 

.04

.04 

.04 

.04 

.04 

.03

.OS 

.03

.1 

.1 

.1

.1 

.1 

.1 

.1 

.04

.03 

.03 

.02 

.02 

.04

.1

.1 

.1 

.1 

.1

May

0.1

.1 

.1 

.1 

.1

.1

.04 

.04 

.04 

.04

.04

.03 

.03 

.03 

.03

.03

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.04

.04 

.04

.1 

.1 

.1 

.1

fort-Say* ""*-

0.39 0.02 

1.12 .08 

16.36 5.0

90.69 23

11.46 2.7 

3.83 .8 

8.02 1.5 

2.07 .1 

2.27 .1 

1.46 .1 

1.10 .04 

.88 .04 

.53' .03

49.49 5.0

June

0.1 

.1 

.1 

.1

.1

.05 

.05 

.05 

.05 

.05

.05 

.05 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.03

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03

July

0.03

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.04

.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.04 

.04

Aug.

o.

Minimum Mean

0.01 0.013 

.02 .037 

.08 .528

0 .248

.04 .370 

.01 .137 

.01 .259 

.02 .069 

.03 .073 

.03 .049 

.03 .035 

.02 .028 

.01 .018

.01 .136

04 

04 

04 

04 

04

04 

04 

03 

03 

03

03 

03 

03 

03 

02

02 

02 

02 

02 

02

02 

02 

03 

02 

02

03 

03 

03 

03 

02 

02

Sept.

0.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.02 

.02 

.02

.02

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.03

Runoff In 

acre-feet

0.8 

2.2 

32

180

23 

7.6 

16 

4.1 

4.5 

2.9 

2.2 

1.7 

1.1

98
MALIBU CREEK BASIN 

Malibu Creek at Crater Camp, near Calabasas, Calif.

123

Location.- Water-stage recorder, lat. 34°04'30", long. 118°42'10", in SW£ sec. 18, T. 1 

S., K. 17 W., 0.2 mile downstream from Crater Camp and 6 miles southwest of Calabasas.

Drainage area.- 103 square miles.

Records available.- January 1931 to September 1949.

Average discharge.- 18 years, 81,4 second-feet.

Extremes.- Maximum discharge during year, 0.6 second-foot May 18 (gage height,' 4.36 feet); 

 no flow Sept. 23, 24, 29, 30.

1931-49: Maximum discharge, 12,200 second-feet Jan. 22, 1943 (gage height, 18.31 

feet); no flow for periods in some years. *

Cooperation. - Recc

H. E. Meager, c

Disc

.-say

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.06 

.04 

.03 

.06 

.06

.06 

.06 

.05

.05 

.05

.05 

.05 

.04 

.04 

.04

.04 

.04 

.04 

.03 

.01

.02 

.02 

.01 

.02 

.01

.01 

.03 

.04 

.04 

.04 

.04

Nov.

0.04 

.04 

.04 

.04 

.03

.03 

.03

.03

.03 

.03

.03 

.02 

.02 

.03 

.03

.04 

.04 

.04 

.04 

.06

.06 

.06 

.08 

.08

.1

.1 

.1 

.1 

.1 

.1

rds furnished by Los Angeles Cou 

hief engineer.

harge, In second-feet, water year oc

Dec.

0.1

.1 

.1 

.1 

,1

.1 

.1 

.1

.1

.1

.1 

.1 

.1 

.1

.1

.1 

.2 

.1 

.1

.1

.1

.1 

.1 

.1 

.1

.2 

.2 

.2 

.1 

.08 

.08

Jan.

0.08 

.08 

.06 

.06 

.06

,06 

.06

.06 

.06

.06 

.08 

.08 

.08 

.06

.04 

.04 

.04

,1 

.1

.08 

,06 

.06 

.08

Feb.

0.08 

,08

.1 

.1 

.1

.08

.1

.08 

.08

.08 

.08 

.08 

.08 

.08

.06 

.06 

.06 

.06 

.06

.06 

.04 

.04 

.08 

.06

,06 

.06 

.06

Month

Ooto 

Move 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Mar,

0.06 

.06 

.08

.1 

.1

.1

.1

.1 

.2

.2

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1 

.2

nty Flood Control District, through 

tober 1948 to September 1949

Apr.

Secondfoot-days

1.18 

1.57 

3.46

85.39

2.30 

2.06 

3.90 

5.5 

11.1 

10.3 

2.35 

1.21 

.51

45.44

0.1 

.2 

.2 

.2 

.2

.2

.2

.2 

.2

.2

.1 

.1 

.1 

.2

.2 

.1 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

May

0.2 

.2 

.3 

.3 

.3

.2 

.2

.2 

.2

.3 

.3 

.4, 

.4 

.4

.4 

.5 

.6 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Maximum

0.06

.1 

.2

15

.1 

.1 

.2 

.2 

.6 

.5 

.2 

.08 

.03

.6

June

0.4 

.4 

.4 

.4 

.4

.5 

.5

.2 

.2

.3 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.2 

.3 

.2 

.2

July

0.2 

.2 

.2

.2 

.2

.2

.1

.1 

.08

.06 

.04 

.03 

.03 

.03

.02 

.02 

.02 

.02 

.02

.02 

.02 

.03 

.03 

.04

.04 

.04 

.04 

.04 

.08 

.1

Aug.

0. 08 

06 

04 

04 

04

04 

04 

(1/t

.04 

.04

.04 

.04 

.04 

,04 

.04

.04 

.04 

.04 

.04 

.04

.04 

.04 

.04 

.04 

.03

.03 

.03 

.03 

.03 

.02 

.02

Minimum Mean

0.01 0,038 

.02 .052 

.08 .112

.01 .233

.04 .074 

.04 .074 

.06 .126 

.1 .18 

.2 .36 

.2 .34 

.02 .076 

.02 .039 

0 .017

0 .124

Sept.

0.02 

,03 

.03 

.03

.03

.02 

.02

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.01 

0 

0 

.01

.01 

.01 

.01 

0 

0

Runoff In 

ao re-feet

2.3 

3.1 

6.9

169

4,6 

4.1 

7.7 

11 

22 

. 20 

4.7 

2.4 

1.0

90
134 SANTA CLARA RIVER BASIN

Santa Clara River near Saugus, Calif.

Location.- Water-stage recorder, lat. 34°25'30", long. 118°35'10", in San Francisco' 

lirant, at bridge on U. S. Highway 99, 3 miles west of Saugus; Los Angeles County. 

Altitude of gage, about 1,030 feet.

Drainage area.- 355 square miles.

Records available.- October 1929 to September 1949.

Average discharge.- 20 years, 17.2 second-feet,

Extremes.- Maximum discharge during year, 9.9 second-feet Mar. 11 (gage height, 5.97 

reet); minimum daily, 0.4 second-foot Sept. 1, 21-25.

1929-49: Maximum discharge, 24,000 second-feet Mar. 2, 1938; no flow it times in 

each year 1933, 1935-38.

Cooperation.- Records furnished by Los Angeles County Flood Control District, throiigh 

H. E. Hedger, chief engineer.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.2 

1.3 

1.8 

1.8 

1.8

1.8 

1.6 

1.2 

.7 

.8

.8 

1.1 

1.5 

2.0 

1.8

1.2

1.1 

1.2 

1.1

1.1

1.2 

1.2 

1.4 

1.4 

1.6

2.4

2.1 

1.4 

1.4 

1.4 

1.5

Nov.

£.0 

1.5 

1.4 

1.1 

1.1

1.4 

2.1 

2.1 

1.8 

1.4

1.5 

1.8 

£.0 

2.2 

2.6

2.4 

2.6 

.4 

.4 

.4

.4

.4 

1.4 

1.5 

l.S

1.5 

1.6

1.4 

1.8 

2.2

Dec.

1.5 

1.6 

1.6 

1.6 

1.6

1.8 

1.8 

1.6 

1,6 

1,8

2.0 

2.0 

1.8 

2.1 

2.2

2.1 

1.8 

1.8 

1.6 

1.6

1.5 

1.5 

1.4 

1.4 

1.4

1.6

1.8 

1.6 

1.8 

1.6 

1.6

Jan.

2.0 

2.0 

2.0 

2.1 

2.1

2.2 

2.2 

2.2 

 2.2 

2.4

2.7 

3.0 

2.2 

2.2

2.1

2.1 

2.0 

2.0 

2.2 

3.0

2.6 

3.1 

3.5 

2.8 

2.6

2.6

2.6 

2.6 

2.6 

2.6 

2.6

Feb.

2.7 

2. 

2. 

2. 

2.

2. 

2. 

2.8 

2.8 

2.8

2.8 

3.0 

2.8 

2.7 

2.7

2.7 

2.7 

2.8 

2.8 

2.8

2.8 

2.8 

2.7 

2.8 

2.8

3.0 

3.2

3,2

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

'Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

3.0 

3.0 

3.2 

3.4 

3.8

3.2 

2.8 

2.7 

2.6 

2.6

4.9 

3,8 

3.2 

3.2

3.2

3.2 

3.2 

3.2 

3.2 

3.Q

3.0 

2.8 

3.2

2.8 

2.7

2.6 

2.7 

2.6 

2.2 

2.6 

2.6

Apr.

2,7 

2.8 

2.4 

2.6 

2.4

2.6 

2.2 

2.6 

2.4 

2.4

2.6 

2.4 

2.6 

2.6 

 2.6

2.7 

2.8 

2.7 

3.0 

3.2

3.0 

2.7 

2,7 

2.6 

2.2

2.7 

2.4 

2.6 

2.6 

2.2

Secondfoot-days

43.9 

50.9 

52.7

996,6

75.1 

78.4 

94.2 

78.0 

55.8 

46.6 

34.2 

25.0 

20.5

655.3

May

2.0 

1.8 

1.8 

1.8 

1.8

1.8 

1.6 

2.2 

2.6 

2.2

2,2 

2.2 

1.8 

2.4 

2.1

1.8 

1.8 

1.8 

2.0 

1.6

1.5 

1.1 

.9 

1.2 

1.8

2.2 

2.4 

1.1 

1.4 

1.4 

1.5

Maximum

2,4 

2.6 

2.2

33

3.5 

3.2 

4.9 

3,2 

2.6 

2.4 

2.2 

1.2 

1.3

4.9

June

1.5 

1.6 

2.1 

2.2 

2.2

1.8 

.9 

1.5 

2.0 

.9

1.4 

2.0 

2.1 

2.1 

1.6

1.1 

1.2 

1.2 

1.1 

.9

1.4 

1.4 

1.1 

.8 

] .4

1.6 

2.1 

2.2 

2.4 

.8

July

0.7 

.7 

.8 

1,8 

2.0

2,2 

,9 

.8 

.9 

.7

.5 

.5 

.5 

.8 

1,4

1.6 

2.2 

1.5 

.5 

.5

.7 

.8 

.8 

.7 

.9

1.4 

1.5 

1.5 

1.5 

1.5 

1.4

Minimum

0.7 

1.1 

1.4

.7

2.0 

2.7 

2.2 

2.2 

,9 

.8 

.5 

.5 

.4

.4

Aug.

1.2 

1.2 

.9 

.9 

.9

.8 

.8 

.8 

.8 

.8

.8 

.8 

.7

.7 

.7

.7 

.7 

.7 

.8 

.8

.8 

.8 

.9 

.9 

.9

.9 

.8 

.7 

.7 

.6 

.5

Mean

1,42 

1.70 

1,70

2.72

2.42 

2,80 

3.04 

2.60 

1.80 

1.55 

1.10 

.81 

.68

1.80

Sept.

0.4 

.5 

.6 

.8 

1.0

1.1 

1.3 

1.2 

1.1 

1.0

1.0 

.9 

.8 

.7 

.7

,7 

,6 

.6 

.5

.5

.4 

.4 

.4 

.4 

.4

.5 

.5 

.5 

.5 

.5

Runoff In 

acre-feet

87 

101 

105

1,980

149 

156 

187 

155 

111 

92 

68 

50 

41

1,300
SANTA CLARA RIVE* BASIN 

Piru Creek near Piru,, Calif.

126

Location.- Water-stage recorder and broad-crested weir, lat. 34°25 I 30", long. 118°45'45", 

in southern part of Temescal Grant, 1.8 miles northeast of Piru, Ventura County, and 2 

miles upstream from mouth. Altitude of gage, about 780 feet.

Drainage area.- 433 square miles.

Records available.- October 1911 to September 1913, October 1934 to September 1949. Octooer lazy to September 1934 at site,1.5 miles downstream at Piru.

Average discharge.- 22 years (1927-49), 63.6 second-feet.

Extremes.- Maximum discharge during year, 165 second-feet Mar. 12 (gage height, 1.98 feet); 

minimum daily, 0.5 second-foot Sept. 1-3.

1911-13, 1927-49: 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.'s ditch diverts below.

Discharge, In secorid-feet, water year October 1948 to Septemoer 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

SI 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.2 

1.5 

1.5 

1.5 

1.5

1.5 

1.2 

1.2 

1.2 

1.5

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.5

1.6

1.2 

1.2 

1.0 

1.0 

1.0

1.0 

1.2

1.2 

1.5 

1.5 

1.5

Nov.

1.5 

1.5 

1.5 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.9

2.2 

2.2 

1.9 

1.9 

2.2

2.6 

2.6 

2.6 

2.2

2.6

2.2 

2.6 

2.6 

3.0 

3.0

3.0 

2.6 

2.6 

2.6 

2.2

Dec.

3.0 

2.6 

3.4 

5.0 

5.0

5.5 

6.0 

7.0 

.0 

.0

.0 

.5

.5 

8.0 

8.0

9.2 

33 

32 

20 

14

12 

11 

11 

10 

10

12 

46 

24

16 

13 

12

Jan.

11 

10 

9.5 

9.5 

8.1

7.5 

7.5 

9.0 

9.0 

9.0

9.0 

9.5 

9.5 

9.5 

9.5

9.5 

3.5 

9.0 

13 

31

21 

20 

21 

18 

16

14 

14 

13 

13 

13 

12

Feb.

12 

12

13 

12

12

13 

14 

13 

13 

13

13 

13 

13 

13 

12

12 

12 

13 

14 

16

17 

17 

18 

22 

21

22 

23

21

HOnth

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ............... ^ .......

Mar.

20

21 

40 

53 

53

44 

33

28 

23 

23

82 

111 

54 

37 

30

27 

25 

23 

25 

25

2E 

25 

23 

23 

2!

21 

20 

19 

19 

19 

20

Apf.

19

19 

19

16 

15

16 

18 

19 

19 

18

IS 

13 

14 

14 

15

16 

14 

15 

16 

14

10 

8.5 

6.5 

5.5 

6.0

6.5 

6.0 

6.0 

5.5 

5.5

Second^ 

foot-days

42.1 

67.2 

374.7

3,102.3

384.1 

419 

1,015 

390.0 

166.3 

65.7 

52.2 

34.4 

28.4

3,039.1

May

5.5 

5.0 

6.2 

7.0 

6.5

5.5

5.5 

6.0 

6.5 

6.0

5.5 

6.0 

6.5 

7.0 

7.5

6.5 

6.0 

6.S 

11 

9.8

5.5 

4.2 

3.4 

2.6 

2.2

2.2 

2.2 

2.2 

3.0 

3.4 

3.4

Maximum

1.5 

3.0 

46

132

31 

23 

111 

19 

11 

6.0 

2.2 

1.5 

1.2

111

June

4.2 

3.4 

3.8 

6.0 

3.0

3.4

2.6 

2.6 

2.2 

2.2

2.2 

2.2 

1.9 

1.5

1.2

1.2 

1.2 

"1.2 

1.2

1.2

1.2 

1.5 

1.5 

1.5 

1.5

1.9 

1.9 

2.2 

2.2 

1.9

Minimum

July

1.9 

1.5 

1.5 

1.9 

1.5

1.2 

1.5 

1.2 

1.9 

2.2

2.2 

2.2

1.9 

1.9 

1.5

1.5 

1.5 

1.5 

1.5 

1.9

2.2 

2.2 

1.9 

1.5 

1.5

1.5 

.5 

.5 

.5 

.5 

.5

1.0 

1.5 

2.6

1.0

7.5 

12 

19 

5.5 

2.2 

1.2 

1.2 

.7 

.5

.5

Aug.

1.2 

.7 

1.0 

1.0 

.7

1.0 

1.0 

1.2 

1.2 

1*5

1.5 

1.5 

1.5 

1.5 

1.5

1.5 

1.5 

1.5

1.2 

1.2

1.0 

1.0 

1.0 

1.0

.7

.7 

1.0

1.0 

.7 

.7 

.7

Mean

1.36 

2.24 

12.1

8.48

12.4 

15.0 

32.7 

13.0 

5.36 

2.19 

1.6S 

1.11 

.95

8.33

Sept.

0.5 

.5 

.5 

.7 

.7

.7 

.7 

.7 

.7 

.7

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.2

1.2 

1-.2 

1.2

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.0

Runoff in 

acre-feet

84 

133 

743

6,160

762 

831 

2,010 

774 

330 

130 

104 

68 

56

6,020

?eak discharge .(.base, 850 see.-ft..).- No peak above base.
186 SANTA CLARA RIVER BASIN

Hopper Creek near Piru, Calif.

Location.- Water-stage recorder, lat. 34°23<55", long. 118°49'40", on south line of NW£ 

 sec. 25, T. 4 N., R. 19 W., at highway bridge 2 miles southwest of Piru.

Drainage area.- 23.0 square miles.

Records available.- October 1930 to September 1932, October 1933 to September 1936, October 193'> to September 1949.

Average discharge.- 17 years ( 1930-32, 1933-36, 1937-49), 5.79 second-feet.

Extremes.- Maximum discharge during year, 90 second-feet Mar. 11; no flow during most of 

year.

1930-32, 1933-36, 1937-49: 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 1943 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

4.2 

1.7 

1.0 

.7

.6 

.6 

.5 

.4 

.3

.3 

11 

2.1 

.9 

.8 

.8

Jan.

0.8 

.7 

.7 

.6 

.6

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.3

.3 

.3

.3 

.5 

8.5

2.4 

1.1 

1.1 

1.0 

1.0

1.0 

.9 

.9 

.9 

.9 

.8

Feb.

0.8 

.8 

.8 

.8 

.7

.7 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

is

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

Month

Octo 

Hove

Dece

Ca

Janu 

Pabr 

Marc 

Apr!

Mav

June 

July 

AUgu 

Sept

Ha

lendar year 1948

ter year- 1948-49 ...............

Mar.

0.5 

.6 

14 12 -' 

6.2

2.2 

1.9 

1.6 

1.3 

2.0

33

5.2 

3.8 

3.1 

2.5

2.0 

1.6 

1.5 

1.5 '1.4

1.3 

1.2 

1.2 

1.1 

1.0

1.0 

.9 

.8 

.8

.7 

.7

Apr.

0.6 

.6

.6

.6 

.7

.7 

.7 

.7 

.6 

,6

.5 

.5

.4 

.4

.4

.4 

.4 

.3 

.3 

.3

.3

.3 

.2 

.2 

.1

.1 

0 

0 

0

0

Secondfoot -days

0 

0 

25.9

154.6

29.6 

15.8 

108.6 

11.5 

0 

0 

0 

0 

0

191.4

May

Maximum

0 

0 

11

23

8.5 

.8 

33 

.7 

0 

0 

0 

0 

0

33

June

Minimum

July

0 

0 

0

0

.3

.5 

.5 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.84

.42

.95 

.56 

3.50 

.38 

0 

0 

0 

0 

0

.52

Sept.

Runoff In 

ao re-feet

0 

0 

51

306

59 

31 

21S 

23 

0 

0 

0 

0 

0

379
SANTA CLARA RIVKR BASIN 127

Sespe Creek near Wheeler Springs, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. 119°15'2'5", in SW£sw£ sec. 30, T. 

t> N. , H. 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); August 1948 to 

septemoer 1949.

Extremes.- Maximum discharge during year, 21 second-feet'Mar. 10 (gage height, 3.07 feet); 

minimum daily, 0.04 second-foot Sept. 5-9, 21-24.

Remarks.- Records good. No diversion or regulation above station,

Cooperation.- Gage-height record and 47 discharge measurements furnished by Ventura County 

water survey.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

£2 

23 

24 

25

26 

87 

28 

29 

30 

31

 Oct.

0.1

.1

.1 .1

a. 2

a. 2

a. 2

.2

.2 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2

.2

.2

.3

.3

.3

.3 

.3

.3 

,3 

.3

.3 

.4 

.4

.3 

.3

Dec.

0.3

.4

.4

.4

g.

4.2

.8

,7 

.6 

.5 

.4 

.5

.9 

.8 

.7

.7 

.6 

.7

Jan.

0.8

.6

.7

1

0

».7

.6

.6

1.0

.8 

.8 

.8 

.8 

.7

.8 

.8 

.8 

.8 

.8 

.8

Feb.

0.8

,9

.9

.8

.9

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8

Month

Goto 

Move 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 

ary

ter year 1948-49 .......................

Mar.

0..$

1.5

1.9

3

0

2.2

2.0

1.7

2

-Z

1.9

1.7 

1.7 

al.6 

al.6 

al.6

al.6 

al.6 

al.6 

al.6 

al.6 

al.6

Apr.

al.6

1.6

al.7

al.7

al.7 

al.7

al.7

1.6

1.5 

al.4 

al.4 

al.4 

al.4

al.4 

al.4 

1.4 

1.4 

1.4

Secondfoot -days

4.9 

8.5 

20.1

-

24.5 

22.3 

70.5 

47.7 

37.1 

13.4 

4.8 

2.43 

1.74

257.97

May

al.4

al.6

al.l

a. 9

al.O

al.o

al.l

a2.2

1.4 

1.2 

1.1

1.0 

1.0

.9 

.9

a. 9 

a. 9 

a. 8 

.8

Maximum

0.2 

.4 

4.2

-

1.8 

.9 

9.4 

1.7 

3.1 

.8 

.2 

.1 

.08

9.4

June

0,8

.8

.5

.4

.4

.4

.4

.4 

.5 

.4

.3 

.3

.3 

.4

,3 

.3 

.2

July

0.2

.2

.2

.2

.2

.£

.2

.1 

.1

.1

.1 

.2 

,1

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

, 0.09

.07 

.07

.07

.07

.09

.09

.09

.09

.09

.08 

.08

.07

.07

.07 

.08 

.08 

.08 

.07

.07 

.07 

.08 

.08 

.07 

.07

Sept.

O.07 

.07 

.06 

.05 

.04

.04 

.04 

.04 

.04 

.05

.07 

.07 

.07 

.07 

.06

.07 

.06 

.06 

.06 

.06

.04 

.04 

.04 

.04 

.05

.08 

.08 

.08 

.07 

.07

«iniraura «ean %£%£

0.1 0.16 9.7 

.2 .28 17 

.3 .65 40

-

.6 .79 49 

.7 .80 44 

.8 2.27 140 

1.4 1.59 95 

.8 1.20 74 

.2 .45 £7 

.1 .15 9.5 

,07 .078 4.8 

.04 .058 3.5

.04 .707 514

* Winter discharge measurement made on this day.

a Incomplete or no gage-height record; discharge computed on basis of frequent discharge measurements, recorded range in stage, fragments of gage-height record, and weather records, or interpolated.
128 SANTA CLARA RIVER BASIN 

Sespe Creek near Fillmore, Calif.

Location.- Water-stage recorder, lat. 34°26'55", long. 118°55'35", in NEi sec. 12, T. 

1 4 N.,' H. 80 W., 0.1 mile downstream from Little Sespe Creek and 3.5 miles north of 

Fillmore. Altitude of gage, about 590 feet.

Drainage area.- 354 square miles.

Records available.- November 1934 to September 1949. September 1911 to September 1913 

ana ucotber 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average discharge.- 22 years (1927-49), 103 second-feet.

Extremes.- Maximum discharge during year, 725 second-feet Mar. 11 (gage height, 7.50 

feetJ; minimum daily, 0.01 second-foot Sept. 8-14

1927-49: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow except slight return seepage from Fillmore Canal during the lowest part of 

irrigation season in most years.

Remarks.- Records good. Fillmore Irrigation Co.'s canal diverts water 1 mile above 

station (see following page).

Revisions (water years).- W 901: 1938-39.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.2 

.2 

.2 

.2 

.3

.3 

.2 

.2 

.2 

.2

.2 

' .2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

,3 

.3 

.3 

.3 

.3

.3 

,3

.3 

.3 

.3 

.3

Nov.

0,3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

Dec.

0.2

.3 

.5 

1,0 

.4

.3 

.3 

.3 

,3 

.3

.3 

.3

.4 

,4 

.4

 9 

26 

15

7.2 

6.1

4.3 

4.3 

4.3 

4.0 

4.0

11

52 

15 

8.3 

7.8 

7.3

Jan.

6.7 

6.1 

5.6 

4.7 

4.3

4.0 

3.6 

3.6 

4.0 

3.6

3.6 

5.6 

5.1 

6.1 

6.1

6.1 

6.1 

5.6 

11 

60

23

19 21 ' 

14 

12

12 

10 

9.5 

8.9 

8.9 

8.9

Honth

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

Feb.

9.5 

9,5

10 

10 

11

11 

12 

12 

12 

12

12

11 

10 

9.5 

8.9

8.3 

8.3 

8.3 

8.3 

8.3

8.3 

8.3 

8.3 

12 

17

18 

21 

18

mber. ...................................

lendar year 1948 

Ri*y

ter year 1948-49 .......................

Mar.

17 

19 

84 

96 

104

62 

44 

38 

35 

53

376 

162 

84 

65 

55

48 

43 

41 

41 

43

41 

33 

33 

33

31

27 

26 

26 

31 

28 

26

Apr.

24 

24 

24 

24 

22

23 

28 

24 

23 

23

20 

18 

16

15 

15

14 

12 

12

11 

8.3

7.2 

5.6 

4.7 

4.3 

2.2

.8 

.8 

.8

.7

1.0

Secondfoot-days

7.7 

8.7 

183.1

2,260.3

308.7 

312.8 

1,845 

408.4 

55.8 

4.95 

1.85 

1.17 

.65

3,138.82

May

1.6 

1.1 

1.6 

.7 

.7

.5

.4

.4

.5

.4 

.4 

,4 

.4 

.4

.4 

.4 

5.1 

16 

7.2

5.6 

4.3 

2.7 

1.6 

.7

.3 

.3 

.3 

.3 

.3 

.3

Maximum

0.3 

.3 

52

230

60 

21 

376 

28 

16 

.3 

.09 

.05 

.04

376

June

0.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

,2 

,2 

.2

.2 

.1 

.1 

.1 

.1

.1 

.09 

.09 

.09 

.09

.1 

.1

.1 

.1 

.09

Minimum

July

0.09 

.09 

.09 

.09 

.09

.07 

.07 

.07 

.07 

.07

,07 

.07 

.07 

.07 

.05

.05 

.05 

.05

,05 

.04

.04 

.04 

.04 

.04 

.03

.04 

.05 

.05 

.05 

.05 

.05

0.2 

.2 

.2

.2

3.6 

8.3 

17 

.7 

.3 

,09 

.03 

.02 

.01

.01

Aug.

0.04 

.04 

.04 

.03 

.03

.03 

.03 

.04 

.04 

.04

.05 

.05 

.05 

.05 

.05

.05 

.05 

.05 

.05 

.05

.04 

.03 

.05 

.04

,03

.02 

.02 

.02 

,02 

.02 

.02

Mean

0.25 

.29 

5.91

6.18

9.96 

11.2 

59.5 

13.6 

1.80 

.165 

.060 

.038 

.022

8.60

Sept.

0.02 

.02 

.02 

.03 

.03

.02 

.02

.01 

.01 

.01

.01

,01

.01 

.01 

.02

.02 

.02 

.02 

,02 

.02

.02 

,02 

.02 

.02

.03

.03 

.04 

.04 

.04 

.04

Runoff in 

acre-feet

15 

17 

363

4,480

612 

620 

3,660

810 

111 

9.8 

3.7 

2.3 

1.3

6,230

Peak discharge (base, 1,300 see.-ft.).- Ho peak above base.
SANTA CLARA RIVER BASIN 129

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

Location.- Water-stage recorder and Parshall flume, lat. 34°27'15", long. H8f S5<35", in 

 SK$ ' sec . 1, T. 4N..R. 20W..4 miles north of Fillmore, Altitude of gage, about 660 

feet .

Records available . - October 1987 to September 1932 (monthly discharge); October 1935 to 

sepuemeier 1939 (yearly -discharge); October 1939 to March 1940 (monthly discharge); April 

1940 to September 1949.

Average discharge.- 19 years (1927-32, 1935-49), 5.84 second-feet.

Extremes.- Maximum daily discharga during year, 14 second-feet Apr, 25-28; minimum daily, 

l.l second-feet Dec. 28, 29, Mar. 11.

1940-49: Maximum daily discharge, 16 second-feet for several days in occasional 

years; no flow at times during 1941-43.

Remarks . - Records good. Canal diverts water from Sespe Creek in SEr sec. 1, T. 4 N., R. 

2TTF7, 1 mile above gaging station on Sespe Creek near Fillmore (see preceding page^.

Discharge, In aeeond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.9 

2.8 

2.8 

2.8 

3.0

3.0 

3.0 

2.7 

2.7 

2.8

3.0 

3.2 

3.4 

3.4 

3.3

3.2

3.1 

3.0 

3.0 

3.1

3.0 

3.0 

2.9 

. 2.9 

2,9

3.0 

3.1 

3,5 

3.6 

3.7 

3,7

Nov.

3.8 

3.7 

4.0 

4.0 

3.7

3.7 

3.8 

3.7 

3.7 

3.7

3.6 

3.6 

3,6 

3.6 

3.7

3.7 

3.8 

2.5 

3,5 

3.6

3.6 

3.5 

3.5 

3.5 

3.6

3.6 

3.5 

3.5 

3.6 

3.6

Dec.

3.6 

3.6

3.7 

4.1 

4.2

4.0 

3.9 

3.9 

3.8 

3.8

3.8 

3.8 

3.8 

4.0 

3.9

4.1 

2,3 

1.4 

1,4 

1-2

1.6 

1.8 

1.6 

1,6

1.5

1.6 

2.0 

1.1 

1.1 

1.2 

1.2

Jan.

1.2 

1.2 

1.4 

1.9 

2.2

2.3 

2.3 

2.3 

2.3 

2.9

3.2 

2.4 

2.7 

1.9 

1.7

1.9 

1.9

1.9 

1.6 

1.6

1.4 

1.3 

1.4 

1.2 

1.2

1.2 

1.9 

2.3 

2.3 

2,3 

2.3

Feb.

2.3 

2.3 

2.3 

2.3 

2.3

2.4 

2.3 

2.3 

2.3 

2,3

2.3 

2.2 

2.1 

2.0 

2.0

2.0 

2.0 

2.0 

2.0

1,9

l.B 

1.8 

2.6 

4,1 

3.3

2.3 

2.3 

2.2

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948

'

ter year 1948-49 .......................

Mar.

2.3 

2.4 

2.2 

2.0 

1.7

1.7 

1.8 

1.8 

1.9 

2.0

1.1

1.3

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4

1.3

2.5 

3,8 

3.3 

2.6 

3.2

3,9 

4.0 

3.7 

3.0 

1.5 

2.0

Apr.

2.6 

1.9 

1.8 

2.0 

2.0

2.1 

2.0 

3.5 

4.1 

3,8

5.9 

8.7 

10 

10 

10

10 

9.8 

10 

11 

12

12 

12 

12 

12 

14

14 

14 

14 

14 

13

Seoondfoot-days

95.5 

109.5 

84.6

1,707.9

59,6 

64.0 

66.8 

253.2 

308.9 

157.9 

85.6 

79.9 

71.0

1,436.5

May

12

11 

12 

12 

12

11 

10 

10

10 

10

9.8 

9.7 

9.7 

9.8 

9.8

10 

11 

12 

9.8 

B.3

8.2 

8.0 

8.0 

8.0 

9.2

' 10 

9.7 

9.5 

9,5 

9.5 

9.4

Maximum

3.7 

4.0 

4.2

13

3.2 

4.1 

4.0 

14 

12 

9.1 

3.5 

3,0 

2.8

14

June

9.1 

8.5 

7.9 

7.3 

7.0

6.7 

6,5 

6,2 

5.9 

5.6

5.3 

5,3 

5.1

4.8 

4.7

4.6 

4.5 

4.6 

4.6 

4.5

4.1 

3.9 

3,9 

3.8 

3.8

3.9 

4.0 

4.0 

4.0 

3.8

Minimum

July

3.5 

3.3 

3.Z 

3.1 

3.1

3.0 

3.0 

2,9 

2,9

2.9

2.8 

2,9 

2.8 

2.7 

2.7

2.5 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.5

2.6 

2.7 

2.7 

2.8 

2,9 

2.9

2.7 

3.5 

1.1

.7

1.2 

1,8 

1,1 

1.8 

8.0 

3.8 

2,4 

2.1 

2.0

1.1

Aug.

2.8 

2.6 

2.4

2,4 

2.4

2.5 

2.5 

2.5 

2.6 

2.8

2.8 

2.9 

3.0 

3,0 

3.0

3.0 

3.0 

2,9 

2.8 

2.6

2.4 

2.4 

2.4 

2.4 

2.3

2.2 

2.2 

2.2 

2.4 

8. '4 

2.1

Mean

3.08 

3.65 

2.73

4.67

1.92 

2,29 

2.15 

8.44 

9.96 

5.26 

2.76 

2.58 

2.37

3.94

Sept.

2.1 

2,1 

2.3 

2.3 

2.3

2.2 

2.0 

2.0 

2.1 

2.2

2.3 

2,4

2.4 

2.4 

2,4

2.6 

2.8 

2.8 

2.7 

2.6

2.6 

2.5 

2.3 

2.1 

2.3

2.4 

2.4 

2.5 

2.5 

2.4

Runoff in 

acre-feet

1B9 

217 

168

3,390

H8 

127 

132 

502 

613 

313 

170 

15,8 

141

2,850
130 SANTA CLARA RIVER BASIN 

'Santa Paula Creek near Santa Paula, Calif.

Location.- Water-stage recorder, lat. 34 0 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, Venture County. Altitude of gage, about 

650 feet.

Drainage area.- 39.8 square miles.

Records available.- Octaber 1927 to September 1949. April 1912 to September 1913 at site 

2.t> miles upstream. October W27 to February 1931 at site 500 feet downstream, below 

diversion of Santa Paula Water Works.

Average discharge.- 22 years (1927-49), 20.3 second-feet.

Extremes.- Maximum discharge during year, 147 second-feet Mar. 11 (gage height, 2.79 

reet); no flow Sept. 11.

1927-49: Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 

feet), by slope-area method; no flow Sept. 11, 1949.

Remarks.- Records good. Diversions for irrigation above station and for municipal use below station.

Discharge, in second-feet, water year October 1948 to September 1949

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.

0.1 

.2 

.3 

.1 

.8

1.1 

.8 

.7 

.8

1.1 

1.3 

1.3 

1.3 

1.4

1.4 

1.4 

1.4 

1.3 

1.3

1.3 

.5 

.7 

.8 

1.0

.6 

.4

.8 

1.8 

1.8 

1.6

Nov.

1.3 

1.1 

1.4 

1.3 

.6

.6 

1.1 

1.1 

1.1

1.1 

1.1 

1.0 

1.1 

1.3

1.4 

1.4 

.8 

.6 

.6

.5 

.4 

.4 

.5 

1.2

1.3 

.8 

.4 

.4 

.2

Dec.

0.4 

.5 

1.0 

1.0 

1.0

2.1 

1.8 

2.0 

1.6

1.3 

1.6 

1.6 

1.8 

1.8

2.6 

5.4 

3.2 

3.0 

2.7

2.7 

3.0 

3.0 

3.0 

2.7

3.7 

4.7 

3.2 

3.0 

3.0 

3.0

Jan.

2.7

2.7 

2.7

2.7 

2.7 

2.7 

2.7

2.7 

3.0 

3.0 

3.0 

3.2

3.2 

3.2 

3.2 

3.4 

5.9

4.6 

4.6 

4.6 

4.6 

4.6

4.3 

4.3 

4.0 

3.7 

3.7 

3.7

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

wa

Feb.

3.7

3.4 

3.4

3.4 

3.4 

3.4 

3.2

3,4 

4.0 

3.7 

3.7 

3.4

3.4 

3.2 

3.4 

3.2 

3.4

3.4 

3.4 

3.7 

4.0 

4.6

5.8 

5.9 

5.2

lendar year 194J ...............

ter year 1948-49 ...............

Mar.

4.9

8.1 

12

9.3 

8.2 

7.9 

7.6 

11

52 

20 

13 

11 

9.6

9.0 

8.2 

8.2 

8.6 

8.2

8.2 

8.2 

7.9 

8.2 

7.9

7.6 

7.2 

6.2 

5.5 

5.2 

5.2

Apr.

4.3 

4.9

5.2 

5.2 

5.2 

4.9 

4.6

4.3 

4.3 

4.3 

4.6

4.6

4.6 

4.5 

4.9 

4.9 

4.3

4.0 

3.7 

3.7 

4.0 

4.0

3.7 

3.4 

5.4 

3.4 

3.4

Secondfoot-days

30.4 

27.2 

72.8

806.1

107.5 

105.5 

304.9 

130.2 

92.8 

57.4. 

31.2 

21.7 

8.8

990.4

May

3.2

3.4 

3.0

2.7 

2.7 

3.0 

3.0 

2.2

1.8 

1.6 

2.0 

2.2 

2.2

2.7 

2.5 

5,2 

6.5 

4.9

3.7 

3.2 

2.7 

2.5 

2.7

2.5 

2.5 

2.5 

2.7 

2.7 

3.2

Maximum

1.8 

1.4 

5.4

£0

5.9

- 5.9 

52 

5.2 

6.5 

2.7 

1.6 

1.1 

.8

52

June

1.9

.8 

1.3

1.3 

1.8 

1.6 

1.1 

1.8

2.2 

2.5 

2.2 

2.2 

1.8

1.8 

2.0 

2.2 

2.2 

2,0

1.8 

1.6 

1.6 

1.8 

2.0

2.5 

2.7 

2.5 

2.5 

2.5

July

1.4

1.4 

1.6

1.3 

1.3 

1.3 

1.3 

1.3

1.4 

1.3 

1.6 

1.3 

.8

.4 

.5 

1.2 

.9 

.9

.4 

.4 

.5 

.7 

.7

.5 

.8 

.4 

.8 

.7 

1.3

Minimum

0.1 

.2 

.4

.1

2.7 

3.2 

4.9 

3.4 

1.6 

.8 

.4 

.1 

0

0

Aug.

0 .8 

.0

.4 

.7 

.5

.1 

.1 

.7 

.8 

1.0

1.0 

1.0 

1.0 

1.1 

1.0

1.0 

1.0 

1.0 

.8 

.8

.7 

.7 

.7 

.7 

.4

.4

.4 

.4 

.6 

.5 

.4

Mean

0.98 

.91 

2.35

2.20

3.47 

3.77 

9.84 

4.34 

2.99 

1.91 

1.01 

.70 

.29

2.71

Sept.

0.4 

.3 

.4 

.7 

.7

.5 

.4

.1 

.3 

.1

0 

.4 

.2

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.3 

.2 

d.l

d.l

,2 

.4 

.7 

.7 

.8

Runoff In 

acre-feet

60 

54 

144

1,6OO

eas

2Q9 

605 

258 

184 

114 

62 

43 

17

1,960

Peak discharge (base. 200 sec.-ft.).- No peak above base. 

d Doutbtf

isoharge (base. 200 sec.-ft.).- No peak above base.

tful gage-height record; discharge based on records of diversion by Santa Paula Water Works.
VENTURA RIVER BASIN 131 

Matilija Creek above reservoir, near Matilija, Calif.

Location.- Water-stage recorder, lat. 34°29'40", long. 119°19'45", in SE-fSW£ sec. 19, T. 5 

H.',"H. 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 1949.

Extremes.- Maximum discharge during year, 60 second-feet Mar, 11 (gage height, 3.73 feet); 

minimum daily, 0.7 second-foot Sept. 7-14, 16, 23-30.

1948-49: Minimum daily discharge, 0.6 second-foot Sept. 4, 10-14, 1948.

Remarks.- Records good. No diversion or regulation above station.

Cpopegation.- Gage-height record ,and 74 discharge measurements furnished by Ventura County 

water tiurvey.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

'Oct.

0.8 

.8 

.8 

.9

1.0

1.0 

.8 

.8 

.8 

1.0

1.0 

1.0 

1.0 

1.1

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1.1 1.1

1.0 

1.0

Nov.

1.0 

.9 

.9 

.9 

1.0

1.0 

1.0 

1.0 

1.1 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.1 

1.2 

1.2 

1.2 

1.3

1.2 

1.2 

1.2 

1.2 

1.2

1.3 

1.4 

1.4 

1.4 

1.4

Dec.

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.5 

l.S

1.5 

1.5 

1.5 

1.5 

1.5

1.9 

3.6 

2.4 

2.4 

2.3

2.4 

2.3 

2.3 

2.2 

2.2

2.8 

3.6 

3.0 

2.9 

2.8 

2.8

Jan.

2.8 

2.8 

2.6 

2.6 

2.6

2.6 

2.8 

2.9 

3.0 

3.0

3.0 

2.8 

2.6 

2.5 

2.6

2.8 

2.9 

2.9 

3.6 

4.6

3.8 

4.2 

4.2 

4.0 

3.7

3.7 

3.3 

3.3 

3.5 

3.7 

3.8

Feb.

3.7 

3.5 

3.3 

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.7

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

4.0 

4.0 

4.0 

4.0

4.0 

4.0 

4.0 

4.4 

4.2

4.4 

4.2 

4.0

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

Lendar year

ter year 1948-49 .......................

Mar.

4.0 

5.3 

5.7 

9.0 

7.1

6.2 

6.2 

6.0

6.0 

11

40 

24 

18 

15 

14

13 

12 

12 

13 

13

11 

10 

10 

10 

9.9

9.6 

9.3 

9.0 

8.7 

8.4 

8.2

Apr.

7.9 

8.4 

7.6 

7.4 

7.4

7.6 

7.6 

7.4 

6.9 

6.6

6.6 

6.4 

6.2 

6.0 

6.2

6.4 

6.4 

6.4 

6.2 

6.0

5.7 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.3 

5.1 

5.0

Secondfoot-days

30.7 

33.7 

63.6

-

99.2 

107.2 

344.6 

191.7 

123.7 

85.4 

48.9 

32.9 

22.3

1.183.9

May

4.6 

4.6 

4.8 

4.8 

4.0

3.8 

3.5 

3.5 

3.7 

3.5

3.5 

3.5 

3.7 

3.8 

3.7

3.8 

3.8 

4.8 

5.1 

4.6

4.2 

3.8 

3.7 

3.7 

3.7

3.8 

4.0 

4.0 

4.2 

3.8 

3.7

Maximum

1.1 

1.4 

3.6

-

4.6 

4.4 

40 

8.4 

5.1 

3.5 

2.2 

1.4 

.8

40

June

3.5 

3.2 

3.2 

3.2 

3.3

3.3 

3.2 

3.2 

3.0 

2.9

2.9 

2.9 

2.9 

i 2.8 

2.8

2.6 

2.8 

3.0 

2.9 

2.8

2.6 

2.8 

2.6 

2.6 

2.6

2.5 

2.4 

2.4 

2.2 

2.3

July

2.2 

2.0 

2.0 

1.9 

1.8

1.9 

1.9 

1.9 

1.8 

1.7

1.7 

1.6 

1.5 

1. 

1.

1. 

1. 

1. 

1.

1.

1.

1. 

1. 

1. 

1.

1.4 

1.4 

1.4 

1.4 

1.4 

1.3

Aug.

1.2 

1.2 

1.2 

1.2 

1.2

1.1 

1.2 

1.3 

1.4 

1.4

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.0 

1.0 

1.0

.9 

.9 

.9 

.8 

.8

.8 

.8 

.8

:S.8

Minimum | Mean

0.8 0.99 

.9 1.12 

1.4 2.05

-

2.5 3.20 

3.3 3.83 

4.0 i 11.1 

5.0 6.39 

3.5 3.99 

2.2 2.85 

1.3 1.58 

.8 1.06 

.7 .74

.7 3.24

Sept.

0.8 

.8 

.8 

.8 

.8

.8 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.8

.7 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.7 

.7

.7

.7 

.7

:?

Runoff In 

acre-feet

61 

67 

126

-

197 

213 

684 

380 

245 

169 

97 

65 

44

2.350

Peak discharge (base. 100 sec.-ft.).- Ho peak above base.
132 VENTURA RIVER BASIN

Matilija Reservoir at Matilija, Calif.

Location.- water-stage recorder, lat. 34°29>00", long. 119°18'30", in SE£ sec. 29, T. 5

 K.",""RT 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 

crest, 125.0 feet.

Drainage area.- 54.6 square miles. s 

Records available.- March 1948 to September 1949.

Extremes.- Maximum contents during year, 902. acre-feet Apr. 25 (gage height, 46.83 feet);

 minimum observed, 103 acre-feet Sept. 28, 30 (gage height, 12.3 feet).

1948-49: Maximum, that of Apr. 25, 1949; minimum observed since first season of 

storage, that of Sept. 28, 30, 1949.

Remarks.- Reservoir' is formed by concrete daffl. Storage began Mar. 14, 1948. Capacity

 arid'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 Tor 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 1948 to September 1949

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.

196

194

192

191

190

190

188

188

188

188

187

185

184

164

183

182

181

ISO

179

178

176

_

_

h!72

_

.

h!72

^

e!72

Nov.

_

_

_

hl?2

-

.

_

.

-

h!70

»

_

-

_

_

h!68

-

.

_

_.

_

-

h!70

^

_

e!75

Dec.

h!76

176

176

178

179

181

181

179

178

176

_

_

-

hi 70

180

186

191

197

202

207

211

216

220

227

235

241

246

253

£58

Jan.

265

271

277

£82

287

292

297

303

308

313

319

324

329

334

340

345

349

356

368

380

389

401

409

418

427

435

424

393

356 328'

297

Feb.

277

271

2S9

268

267

267

268

267

267

267

267

267

267

267

267

267

267

267

267

267

267

266

266

268

268

263

268

268

M

-

Mar.

266

270

273

294

310

324

338

324

297

289

331

365

393

417

443

466

487

511

538

564

582

800

618

63C

656

674

691

707

721

736

750

Apr.

763

776

790

803

813

824

836

847

852

857

861

866

870

874

878

882

885

890

893

S95

897

899

900

902

886

860

832

803

7S3

759

-

May

734

710

692

679

664

649

634

621

608

596

584

580

579

579

579

578

579

583

588

591

590

589

586

585

583

582

S82

582

583

583

583

June

583

5S2

580

580

578

577

578

579

580

578

577

576

574

573

574

574

575

575

576

576

576

576

576

575

574

574

574

574

574

573

-

July

572

571

570

569

545

498

454

409

361

324

314

314

314

313

313

312

311

311

311

311

310

310

310

310

310

310

310

310

310

310

311

Aug.

311

310

310

310

309

309

308

308

307

307

307

307

307

307

307

307

306

306

306

305

305

305

304

303

303

302

301

300

300

299

298

Sept.

297

296

296

295

295

232

hl77

hl!9

hl!7

hl!7

hl!6

hllG

hllS

nil 4

hl!4

hi 13

hl!2

hill

hllO

hllO

h!69 hioa

h!07

h!06

h!05

h!04

h!04

h!03

h!04

hi 03

'

e Estimated.

h Based on gage reading earlier than 12 p.

Monthly gage height and contents, water year October 1948 to September 1949

Month

Dec. 31. ............ .....

Calendar year 1948. .....

Feb. 28... ................

Sept. 30. ..................

Water year 1948-49. .....

Gage height 

(feet)t

25.41

-

43 12

27 35

hi 2. 32

-

Contents 

(acre-feet)

258

-

759

573

103

-

Change in contents 

during month 

(acre-feet)

-25

+83

+258

-195

-94

t At 12 p.m. on last day of month.

e Estimated.

h .Single gage reading Or determination of gage height earlier than 12 p.
VENTURA KIVER BASIN 133

Matilija Creek at Matilija, Calif.

Location.- Water-stage recorder, lat. 34°28'50", long. 119°18'06", in SE£ sec. 28, T. 5 N., 

 R. yy W., 0.1 mile southeast of Matilija and 0.2 mile upstream from North Fork. Altitude of gage, about 950 feet.

Drainage area.- 55 Bq_uare miles.

Records available - October 1927 to September 1949.

Extremes.- Maximum daily discharge during year, 49 second-feet Sept. 7; minimum daily, 0.1 

second-foot on several days during, December, January, March.

1927-49': 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. No diversion above station. Plow regulated by Matilija Reservoir 

0.4 mile above station since Mar. 14, 1948 (see preceding page).

Cooperation.- Ninety-three discharge measurements furnished by Ventura County Water Survey. 

Revisions (water years).- W 931: 1939, 1940.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

' 14 

15

16 

17 

18 

19 

20

21 

22 

23 

34 

25

36 

27 

28 

29 

30 

31

Oct,

1.7 

1.4 

1.5 1.4" 

1.4

1.3 

1.3 

1.0 

.8 

.7

1.4 

1.9 

1.4 

1.3 

1.5

.6 

.6

.7 

.7

.8

.8 

.8 

,6 

.1 

.0

1.2 

1.3 

1.3 

1.3 

1.3 

1.3

Nov.

1.4 

1.3 

1.2 

1.2 

1.2

1.2 

1.2 

.9 

.9 

2.1

2.1 

1.6 

1.4 

1.4 

1.2

1.1 

.9 

1.0 

.9 

.9

.8 

.8 

.8 

.9 

.9

1.1 

1.2 

1.2 

1.2 

1.2

Dee.

1.2 

1.2 

1.3 

1.4 

1.2

1,2 

1.1 

1.8 

2.5

2.7

2.5 

2.7 

2.7 

2.7 

2.5

2.1 

1.7 

.3 

.2 

.2

.2 

.2

.2 

.2 

.1

,4 

.5 

.5 

1.1 

1.6 

1.6

Jan.

0.9

,2 

.2 

.2

.2

.2 

.2 

.2 

.1

.2 

.2

.2 

.1 

.1

.1 

.1 

.1 

.4 

.4

.1 

.2

.2

.2 

.1

.1 

9.3

21 

24 

22 

23

Feb.

16 

6.7 

.3 

.7 

.4

.2 

.7 

.4 

.2 

.2

.4 

.7

.4 

.4 

.4

.4 

.2

.2

.2

.2 

.2 

.0 

4.7 

5.0

5.0 

5.0 

5.0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

1..,.. ..................................

ter year 1948-49 .......................

Mar.

5.0 

5.6 

4,8 

3.0 

1.6

.2 

.1

13 

25 

19

20 

6.1 

5.8

4.1 

1.4

2.1 

1.9 

1,9 

1.3

.3

2.3;,

C.I

1.6 

1.6 

1.6

1.6 

1.4 

1.5 

1.6 

1.6 

1.6

Apr.

1.6 

1.7 

1.7 

1,7 

1.6

1.6 

1.7 

2.9 

4.2 

4.7

4.7 

4.7 

4.7 

5.0 

5.0

5.0 

5.0

5.0 

5.0 

5.0

4.7 

4.7 

4.7 

5.0 

14

21 

21 

20 

18

18

Secondfoot-days

43.4 

35.2 

39.8

1,016.3

104,7 

139.4 

141.3 

203. S 

236.3 

80.8 

183.6 

33,0 

123.2

1,364.3

May

18 

18

15 

12 

12

12 

12

12 

12 

I*

 12 

8,0 

.9 

.2 

.9

.2

'.2

.2 

.5

.8 

.8 

.5 

.2

,2

.2 

,5 

.2 

.2 

.2 

.2

Maximum

1.9 

2.1 

2.7

12

24 

16 

25 

21 

18 

3.9 

26 

1.2 

49

49

June

3.9

3.4 

3.2 

3.2 

3.2

2.8 

2.1 

2.2

2.S 

3.4

3.7 

3.7 

3.7 

3.0 

2.4

2.4 

2.4 

2,6 

2.4

2.4

2.2 

2.2 

2.2 

2.4 

2.1

2.2 

2.2 

2.2 

2.2 

2.2

July

2.2 

2.2

2.2 

2,6 

13

25 

25 

26 

26 

22

7.6 

2.1

1.8 

1.9 

1,9

1.8 

1.8

1.6 

1.4 

1,3

1,3 

1.3 

1.3 

1.3 

1.3

1.4 

1.2 

1.3 

1.3 

1.3 

1.2

Minimum

0.7 

.8 

.1

.1

.1

4.0 

.1 

1.6 

3.9 

2.1 

1.2 

.8 

.5

.1

Aug.

1.1

1.1 

1.0 

1.0

1.1

1.1 

1.1 1.1 1.1 

1.1

1.1 1.1 1.1 

1.1

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0

1.1 1.1

1.2 

1.2

1.2 

.8 

1.1 

l.l

1.0 

1.0

Mean

1.4O 

1.17 

1.28

2.78

3.38 

4.98 

4.56 

6,79 

7,62 

2.69 

5.92 

1.06 

4.11

3.74

Sept.

1.0 

1.0

1.0 

1.0 

1.0

27 

49 

18 

.9 

1.1

1.2

1.2 

1.2 

1.2 

1.2

1.2 

1.3 

1.3 

1.3

1.3

1.2 

1.1 

1.0 

1.1 

1.1

1,2 

1.0 

,5 

.8 

.8

Runoff In 

acre-feet

86

70 

79

2,010

208 

276 

280 

404 

469 

160 

364 

65 

244

2,700

947809 O - 51 - 10
134 VENTURA RIVER BASIN

Ventura River near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°20'55", long. 119°18'20" > in southeast corner of 

 Santa Ana &r£nt, in Foster Memorial Park, at abutment of former highway bridge 150 

feet downstream from present highway bridge, 500 feet downstream from low-water mouth 

of Coyote Creek, 0.3 mile downstream from Ventura diversion dam, and 5 miles north of 

Ventur.a, Ventura County. Altitude of gage, about 210 feet.

Drainage area.- 187 square miles.

Records available.- September 1911 to January 1914, October 1929 to September 1949.

Average discharge.- 22 years (1911-13, 1929-49), 67.7 second-feet.

Extremes.- -Maximum daily discharge during year, 35 second-feet Mar. 11; no flow for 

several months.

1911-13, 1929-49: 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 poor. Water diverted from'Ventura River and tributaries for irrigation 

ana municipal supply.

Cooperation.- Two discharge measurements furnished by Ventura County Water Survey.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

3O 

31

Oct. Nov. Dec. Jan.

rH

oooooo oo ooooo 

Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194!

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

ter year 1948-49 .......................

Mar.

0 

0 

0 

.5 

1

.5

.2 

1 

7 

15

35 

6 

4 

3 

2

1 

1 

1 

1 

.5

.2 

.1 

0 

0 

.1

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

0

23.25

.1 

0 

80,1 

0 

0 

0 

0 

0 

0

80.2

May

Maximum

0 

0 

0

.9

.1 

0 

35 

0 

0 

0 

0 

0 

0

35

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0

o

.064

.003 

0 

2.58 

0 

O 

0 

O 

0 

0

.22

Sept.

Runoff in 

acre-feet

0 

o

0

46

.2

0 

159 

O 

0 

0 

0 

0 

0

159

Peak discharge (base, 500 sec.-ft.).- No peak above base.

Mote.- Stage-discharge relation undeterminable. Daily discharge computed on basis of records at 

other stations in Ventura River Basin, supplemented by weather records, and coordinated with 4 discharge measurements at this station.
VENTURA RIVER BASIN 135

North Pork Hatllija Creek at Matilija, Calif.

Location.- Water-stage recorder, lat. 34°29'15", long. 1190 18'20", in NE^ sec. 29, T. 5 

N., R. 23 W., at highway bridge, 0.5 mile upstream from mouth and 0.5 mile north of 

Matilija.

Drainage area,- 15.5 square miles.

Records available.- October 1928 to September 1932, October 1933 to September 1949.

Average discharge.- 20 years (1928-32, 1933-49), 9.68 second-feet.

Extremes.- Maximum discharge during year, 91 second-feet Mar. 10; minimum daily, 0.4 

second-foot at times during July, August, September.

1928-32, 1933-49: 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 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6

.6

.6 

.6

.6

.8 

.8 

.8 

.8 

.8 

.8

Nov.

0.8

.8

.8 

.8

.8

ft

.8

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

Dec.

0.8

1.0

.9 

.9

.9

4.9

1 9

1.4

1.3

1.1 

1.1 

1.1 

1.1 

1.1

3.8 

8.0 

2.8 

2.4 

2.2 

2.2

Jan.

1.9

1.8

1.5 

1.5

1.5

1.3

1.9 

3.2

2.4

2.8 

2.5 

2.4- 

2.2

2.2 

2.1 

2.1 

2.1 

1.9 

1.9

Feb.

1.9

1 C

1.6

1 8

1 8

1.6 

1.5

1.6

1.5

1.4 

1.4

1.3 

1.3 

1.1 

1,7 

1.6

1.5 

1.6 

1.4

Month

OCtO

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary *

ter year 1948-49 .......................

Mar.

1.3

20

3.3 

16

21

3.5

4.0 

3.3

2.9 

2.8 

2.8 

2.9 

2.9

2.8 

2.8 

2.8 

2.6 

2.6 

2.4

Apr.

2.4

2.1

2.0 

2.0

1.8

1

0

1

0

1.7

1

0

1.7 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.7 

1.6

Secondfoot-days

21.0 

24.0 

51.2

411.6

57.0 

44.6 

162.1 

55.1 

65.1 

43.7 

22.3 

17.7 

15.0

578.8

May

1.6

1.6

1.4 

1.4

1.4

1.6

6.8 

3.7

2.8 

2.6 

2.4 

2.1 

2.0

2.0 

2.0 

2.0 

2.0 

2.0 

1.8

Maximum

0.8 

.8 

8.0

9.2

3.2 

1.9 

21 

2.4 

6.8 

1.8 

.9 

.7 

.6

21

June

1.8

1.7

1.6 

1.4

1.4

1.6

1.6 

1.4

1.3 

1.4 

1.1 

1.1 

1.1

1.3 

1.3 

1.1 

1.0 

1.0

Minimum

July

0.9

.9

.9

.9

.9 

.9

.8

.7 

.6

.6 

.6

.6 

.6 

.6 

.5 

.5

.5 

.4 

.6 

.6 

.6 

.6

0.6 

.8 

.8

.3

1.1 

1.1 

1.3 

1.6 

1.4 

1.0 

.4 

.4 

.4

.4

Aug.

0.4

.5

.5

.5

.5

.6

.7

.7 

.7

.7

.5

.5 

.5

.5 

.6

.6 

.6 

.6 

.7 

.6

.5 

.6 

.6 

.6 

.6 

.7

Mean .

P 0.68 

.80 

1.86

1.12

1.84 

1.59 

5.23 

1.84 

2.10 

1.46 

.72 

.57 

.50

1.59

Sept.

0.6 

.6

.5 

.5 

.5

.4 

.4 

.4 

.4

 4

.5 

.5

.6

.6

.6

.6 

.6 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.6 

.6 

.5 

.5 

.5

Runoff In 

acre-feet

42 

48 

102

817

113 

88 

322 

1O9 

129 

87 

44 

35 

30

1,150
136 VENTURA RIVER BASIN

Coyote Creek near Ventura, Calif.

Location.- Water-stage records?, lat. 34°21'20", long. 119°18 I 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 1949.

Average discharge.- 21 years, 13.7 second-feet.

Extremes.- Maximum discharge during year, 2.0 second-feet Dec. 16 (gage height, 1.34 

feet); no flow Oct. 7 to Nov. 23, Sept. 7-10.

1927-32, 1933-49: Maximum discharge,,11,500 second-feet Mar. 2, 1938, by slopearea method; no flow at times in each year 1929, 1948, 1949.

Remarks.- Records good.

Cooperation.- One discharge measurement furnished by Ventura County Water Survey.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

 0.01

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

Nov.

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

.01

Dec.

. 0.02

> .06

.3

.2

.2 

.2 

.1 

.1 

.1 

.1

Jan.

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

Feb.

0.1 

.1 

.2 

.1 

.1

.1 

.2 

.1 

.1 

.1

.2 

.2 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

Month

Octo 

Hove 

Decs

Ca

Janu 

Peb-n 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

0.1 

.1 

.1 

.2 

.2

.1 

.1 

.2 

.2 

.4

.3 

.2 

.2 

.2 

.3

.3 

.3 

.3 

.4 

.6

.9 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.0 

1.0 

1.0

Apr.

1.0 

1.0 

1.0 

.9 

.9

.9 

.9 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.7

.6 

.5 

.5 

.5 

.5

.6 

.6 

.6 

.5 

.5

Secondfoot -day s

0.06 

.07 

2.39

21.06

3.1 

3.2 

16.4 

22.3 

12.4 

6.1 

2.82 

.65 

.47

69.96

May

0.5 

.6 

.6 

.5 

.4

.3

.3 

.5 

.5 

.3

.3

.3 

.3 

.3 

.3

.4 

.4 

.5 

.6 

.6

,5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.3 

.3

Maximum

0.3

1.2

.1 

.2 

1.1 

1.0 

.6 

.3 

.1

1.1

June

0.3 

.3 

.2 

.2 

.2

.3 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3

.2

.2 

.2 

.2

.2

.2

.1 

.2 

.2 

.1 

.1

.2 

.2 

.2 

.2 

.1

Minimum

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

.06

0 

0

0

.1 .1 

.1

.5 

.3 

.1

0

0

Aug.

 0.03

. .02 

.01

Mean

0.002 

.002 

.077

.058

.10 

.11 

.53 

.74 

.40 

.20 

.091 

.021 

.016

.192

Sept.

 0.02

0 

0 

0 

0

1-

.02

Runoff in 

acre-feet

0.1

.1

4.7

42

6.1 

6.3 

33 

44 

25 

12 

5.6 

1.3 

.9

139

Peak discharge (base, 450 Sgo.-ft.).- No peak above base. _ _ Note.- Dally discharge less than 0.1 sec.-ft. during bracketed periods
CARPINTERIA CREEK BASIN 137

Carpinterla Creek near Carpinteria, Calif.

Location.- Water-stage recorder, lat. 34°24'00", long. 119°29'S5", at bridge on State Highway J50, in El Rincon Grant, 400 feet downstream from Gobernador Creek and 2.4 miles 

northeast of Carpinterla, Santa Barbara County. Altitude of gage, abput ISO feet.

Drainage area.- 13.8 square miles.

Records available.- January 1941 to September 1949.

Extremes.- Maximum discharge during year, 61 second-feet Dec. 17 (gage height, 3.00 feet); 

no now during most of year.

1941-49: 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 poor-. Small lake above station catches storm runoff from 0.74 square 

mile, which is drained past station by pumping; probably no flow from this lake this 

year.

Revisions (water year).- W 1061: 1943.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

31

22 

£3 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0

0

.02 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.02 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0.02 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.6 

3.1 

0 

0

0

0 

0 

0 

0 

0

1.4 

.7 

0 

0 

0 

0

Month

Oo to 

Hove 

Deee

Ca

Janu 

Febr 

Marc 

Aprl 

Nav

June 

July 

Augu 

Sept

wa

Jan.

0 

0 

0 

0 

0

0 

.6 

.5 

0 

0

.01 

0 

0 

0 

0

0 

0 

0 

Q

.1

0 

.01 

0 

0 

0

0 

Q 

0 

0 

0 

0

Feb.

ber........................ .............

lender year 1948

ter year 194;8-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0

o

0 

0

1.2

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0.04 

0 

5.82

8.26

1.23 o

1.-2 

0 

0 

0 

0 

.08 

0

8.36

May

Maximum

0.02 

0 

3.1

3.1

.6 

0 

1.2 

0 

0 

0 

0 

.06 

0

3.1

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0 

0

Mean

0.001 

0 

.188

.023

.039 

0 

.04 

0 

0 

0 

0 

.003 

0

.023

02 

06

sept.

-

Runpff In 

acre-feet

0.08 

0

ie

17

2.4 

0

2.4 

0 

0 

0 

0 

.2 

0

17

Peak discharge (base, 25 seo.rft.).- Dec. 17 (6:15 a.m.) 61 sec.-ft.
138 ATASCADKRO CREEK BASIN

Ataseadero Creek near Goleta, Calif.

Location.- Water-stage recorder, lat. 34°2.5'25", long. lin°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 1949 (prior to October 1947 published as 

Aiascadero Ureek) .

Extremes . - Maximum discharge during year, 84 second-feet Mar. 4 (gage height, 6.41 feet); 

no now during many days .

1941-49: 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 good prior to Jan. 21; others fair. 

for irrigation .

Small diversions above station

DlBoliarge, In second-feet, water year October 1948 to September 1949

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

.02 

.02 

.01 

.02

.02 

.01 

.01 

.01 

,01

.01 

.01 

0 

0 

0

0 

0

0 

.01 

,01

,01 

.01 

.01 

.01 

.02

.02 

.02 

.01 

.01 

.01 

0

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mav

June

July 

Augu 

Sept

Wa

Nov.

0 

o 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.01 

.06 

.2 

.03

.01 

.01 

.01 

.01 

.01

.01 

0 

0 

.01 

.01

Dec.

0 

0 

0 

0 

0

0 

0 

0 

. 0 

.02

.01 

.01 

.01 

.01 

.01

.01 

.03 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

1.0 

3.6 

.6 

.1 

.06 

.04

Jan.

0.03 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.02 

.01 

0 

0

0 

0 

0 

,01

.3

.01 

.01 

.01 

.03 

.01

.01 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.03 .1

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

0 

0 

0 

27 

3.1

.5 

.2 

.2 

.2 

4.6

16 

3.4 

.4 

.1

.1

.06 

.06 

.04 

.04 

.04

.04 

.02 

.01 

.01 

0

.03 

0 

0 

0 

0 

0

Apr.

0 

0 

.01 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.01

0 

.01 

.01 

.02 

.01

.01 

.01 

.01 

.01 

.02

Secondfoot-days

0.31 

.38 

5.59

26.03

.56 

.13 

56.15 

.13 

31.90 

.04 

0 

.01 

.17

95.37

May

0.02 

.01

.01

.01 

0

0 

0 

0 

0 

.01

0 

0 

0 

0 

0

0 

.01 

5.8 

21 

4.8

.2 

.02 

.01 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0.02 

.2 

3.6

11

.3

.1 

27 

.02 

21 

.01 

0 

.01 

.05

27

June

0 

0

0

0 

0

0 

0 

0 

0 

.01

0 

0 

.01 

0 

0

0 

0 

0 

0 

.01

.01 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Mean

0.010 

.013 

.180

.071

.018 

.005 

1.81 

.004 

1.03 

.001 

0 

.003 

,006

.261

.01

Sept.

0.01 

.01 

.01 

.01 

0

0 

0 

0 

0 

0

.01 

.01 

,03 

.01 

0

0 

0 

0 

.01 

.05

.01 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

0.6 

.8 

11

52

1.1 

.3 

111 

.3 

63 '.1 

0 

.02 

.3

189

Pea-k discharge (base. 6Q sec.-ft.).- Mar. 4 (4 a.m.) 84 sec.-ft,j May 19 (2:20 p.m.) 68 Bee.-ft.
SAN JOSE CREEK BASIN 

San Jose Creek near Goleta, Calif.

139

Location.- Water-stage recorder, lat. 34°27'25", long. 119°48'30", In La Goleta Grant, at 

Patterson Avenue Bridge, 1.1 miles downstream from unnamed tributary aftd 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 1949.

Extremes.- Maximum discharge during year, 150 second-feet Mar. 4 (gage height, 3.10 feet); 

no flow during several months..

1941*49: 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 a.t times during each year.

Remarks.- Records good. Many small diversions above station for Irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

1.5 

.08 

.02 

.02

.01 

0 

0 

0 

0

1.4 

2.4 

.4 

.2 

.2 

.2

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

N&y

June 

July 

Augu 

Sept

Wa

Jan.

0.08 

.05 

.05 

.08 

.06

.08 

.08 

.06 

.05 

.06

.1 

.2

.1 

.1 

.09

.09 

.08 

.08 

.3 

.8

.3 

.4

.02 

.1 

.2

.2 

.2 

.2 

.2 

.1 

.2

Feb.

0.2 

.2 

.1 

.1 

.1

.05 

.1 

.1

.06 

.06

.08 

.1 

.09 

.08 

.08

.08 

.07 

.06 

.05 

.04

.05 

.05 

.07 

.1 

.3

.04 

0 

0

lender year 1948

ter year 1948-49 .......................

Mar.

0 

2.7 

6.5 

33 

3.0

.8 

.4

.1 

0 

17

13 

3.2 

1.4 

.9 

.5

.2 

.04 

.02 

.9 

1.1

.3 

.07 

.06 

.04 

.04

.4

.05 

.2 

.06 

.8

.6

Apr.

0.09 

.2 

.4 

.3 

.3

.2 

.2 

.2 

.1 

.3

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.07

.09 

.02 

0 

0 

.03

.03 .1 ' 

.04 

0 

0

Secondfoot-days

0 

0 

6.43

21.94

4.71 

2.41 

87.38 

3.57 

33.0 

2.91 

0 

0 

0

140.41

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

5.3 

17 

4.2

1.7 

1.0 

.6 

.5 

.4

.4 

.5 

.4 

.4 

.4 

.2

Maximum

0

0

2.4

6.8

.8 

.3 

33 

.4

17 

.2

0 

0 

0

33

June

O.Z 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.2 

.1

.2 

.2 

.2 

.1 

.08

.04 

.05 

.1 

.1 

.04

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

0 

0 

0

0

.02 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.207

.060

.152 

.086 

2.82 

.119 

1.06 

.097 

0 

0 

0

.385

Sept.

Runoff in 

acre-feet

0 

0

13

43

9.3

4.8 

173 

7.1 

65 

5.8 

0 

0 

0

278

Peak discharge (base, 100 sec.-ft.). - Mar. 4 (3:30 a.m.) 150 Seo.-ft.; Mar-. 10 (8s30 p.m.) 114 sec,-ft. - 
140 SANTA YNEZ RIVER BASIN

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

Location.- Water-stage recorder on Jameson Lake Reservoir at Juncal Dam, lat. 340 S9'32", 

long. 119°30'?5", and water-stage recorder at weir on outlet conduit, 6.5 miles north 

of Carpinteria and 8 miles northeast of Montecito, Santa Barbara County. Datum of gage 

is 2,021.6 feet above mean sea level (Bureau of Reclamation bench mark), or 2,000 feet 

above arbitrary datum (called sea level) generally used for works in this vicinity 

(elevations above sea level previously published were referred to this arbitrary datum).

Drainage area,- 16.0 square miles (not including Alder Creek). 

Records available.- December 1930 to September 1949.

Remarks.- Records of total inflow represent all water reaching Jameson Lake Reservoir, 

including rainfall on reservoir, computed on basis of records of storage, diversion to 

city of Montecito (draft), spill and release to river, and evaporation. Records of 

net runoff exclude rainfall on water surface, computed on basis of area and records of 

precipitation. Capacity and area ratings for this reservoir are based on surveys made 

in 1948. Reservoir capacity at spillway level (gage height, 225.0 feet), 6,760 acrefeet. Dead storage, 268 acre-feet, below lowest outlet at gage height 139.0 feet, Included in these records. Records are computed as of 6 p.m. on last day of each month. 

There is no regulation or diversion above Jameson Lake'. A part of flow of Alder Creek, 

which enters Santa Ynez River 2 miles downstream from Juncal Dam, is diverted from 

above elevation 2,250 feet to Jameson Lake, and is included in these records.

Cooperation.- Reservoir-operation records and related data furnished by Montecito County 

hater District.

Revisions.- Records given in the following table for the water year 1948 supersede those 

puDiished in Water-Supply Paper 1121. The 1948 reservoir ratings are used in the 

revised computations.

Monthly runoff, October 1947 to September 1949

Month

September 1947

December. .....

Calendar year 

1947. .......

January 1948. . 

February. .....

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

September. .... 

Water year 

1947-48. ....

October 1948.. 

November. ..... 

December. .....

Calendar year 

1948. .......

January 1949.. 

February. .....

September. ....

Water year 

1948-49.. ...

Jameson I.aket

Gage height 

If set)

203.02 

200.13 

1S7.86 

196.78

-

195.26 

195. 1O 

195.42 

195.91 

195.71 

194.68 

192. .50 

189.95 

187.35

-

185.54 

183.85 

183.08

-

182.71 

182.41 

183.28 

183.40 

182.60 

181.00 

178.74 

176.37 

173.96

-

Contents 

(acrefee t)

4,091 

3,796 

3,574 

3,469

-

3,326 

3,311 

3,341 

3,387 

3,368 

3,273 

3,077 

2,858 

2,645

-

2,503 

2,375 

2,319

-

2,291 

2,269 

2,333 

2,342 

2,263 

2,168 

2,010 

1,851 

1,697

-

Change

contents 

(acrefeet)

-295 

-22E 

-105

_

-143 

-15 

+3O 

+46 

-19 

-95 

-196 

-219 

-213

-1,446

-142 

-128 

' -56

-1,150

-28 

-22 

+64 

-1-9 

-59 

-115 

-158 

-159 

-154

-946

Draft 

(acrefeet)

275 

210 

102

2,557

137 

48 

34 

3 

31 

92 

161 

194 

185

1,472

123 

117 

82

1,207

52 

43 

23 

29 

96 

118 

136 

136 

133

1,088

Spill 

and 

release 

(acrefeet)

0 

0 

0

O

0 

0 

0 

0 

0 

0 

0 

0 

0

o

0 

0 

0

o

0 

0

o

0

o

0 

0 

0 

0

0

Evaporation 

(acrefeet)

27

12 

8

-

13 

14 

19 

26 

42 

46 

57 

51 

38

353

20 

11 

4

341

3

6 

12 

26 

32 

40 

45 

37 

31

267

Total 

inflow 

(acrefeet)

7 

0 

5

-

7 

47 

83 

75 

54 

43 

22 

26 

10

379

1 

0 

30

398

27 

27 

99 

64 

69 

43 

23 

14 

10

407

Rain on 

reservoir 

(acrefeet)

1 

0 

5

-

0 

26 

39 

26 

4 

1 

0 

0 

0

102

1 

0 

29

126

14 

12 

29

0 

11 

1 

0 

0 

0

97

Net ' 

runoff 

(acrefeet)

6 

0 

O

584

7 

21 

44 

49 

50 

42 

22 

26 

10

277

0 

0

1

272

13 

15 

70 

64 

58 

42 

23 

14 

10

310

t On last day of month.
SANTA INEZ RIVER BASIN. 

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

141

Location.'. Water-stage recorder on reservoir at Gibraltar Dam, lat. 34°31'37", long. 

119""41'1Q", and water-stage recorders at sharp-crested weirs on outlet and diversion ' 

channels below dam, 7 miles north of Santa Barbara, Santa Barbara County. Datum of 

gage on reservoir is 21.53 feet (corrected) above mean sea level (Bureau of Reclamation 

bench mark) and is datum used by city of Santa Barbara for works in this vicinity.

Drainage area.- 219 square miles.

Records available.- April 1920 to September 1949. November 1903 to Aoril 1907, October 

lauv to' January 1908, and February 1910 to November 1918 at river-gaging station at 

dam site.

Average runoff.- 29 years (1920-49), 32,350 a,cre-feet per year (44.7 seoohd-feet), computea from figures of net runoff.

Remarks.- Records of total inflow represent all water reaching Gibraltar Reservoir, in- 

' eluding rainfall on reservoir, computed on basis of records of storage, diversion to 

city of Santa Barbara (draft), spill and release to river, and evaporation. Records 

of net runoff exclude rainfall on water surface, computed on basis of area and records 

of precipitation. Capacity and area ratings for this reservoir are based on surveys 

made in 1948. Reservoir capacity at spillway level (gage height, 1,378.82 feet), 

16,000 acre-feet. Dead storage, 863 acre-feet, below lowest outlet at gage height 

1,312.04 feet, included in these records. Height of dam was increased in 1949. Records are computed as of 6 p.m. on last day of each month. Plow regulated at Jameson 

Lake, where water is also diverted out of basin to city of Montecito (see preceding r<jge).

Cooperation.- Reservoir-operation records and related data furnished by city of Santa 

samara.

Revisions (water years).- W 706: 1921, 1922. W 1041; 1944.

Monthly runpff, water year October 1948 to September 1949

Month

September .....

November ...... 

December ......

Calendar year 

1948. .......

February. .....

September. ....

Water year 

1948-49.. ...

Oibpaltap Reservoirt

Gage height 

(feet)

1,319.61 

1,319.22 

1,318.90 

1,319.24

-

1,319.52 

1,319.72 

1,326,24 

1,326.90 

1,326.64 

1,325.55 

1,322.86 

1,320.92 

1,319.28

-

Contents 

(acrefeet)

1,711 

1,662 

1,625 

1,665

-

1,699 

1,724 

2,596 

2,690 

2,653 

2,499 

2,130 

1,876 

1,670

-

Change 

in

contents 

(acrefeet)

-49 

-39 

+42

-1,133

+34 

+25 

+872 

+94 

-37 

-154 

-369 

-254 

-206

-41

Draft 

(acrefeet)

0 

0 

0

886

0 

0 

0 

TO 

99 

68 

273 

164 

128

80?

Spill 

and 

release 

(acrefeet)

4 

4

3

25

1 

O 

0 

0 

0

1

4 

4 

3

24

Evaporation 

(aerefeet)

40

26 

10

542

8 

15

53 

64 

79 

93 

80 

68

562

Total 

inflow 

(acrefeet)

-5

-9 

55

320

43

40 

898 

217 

126 

-6 

1 

-6 

-7

1,347

Rain on 

reservoir 

(acrefeet)

1 

0 

50

183

23 

15 

54 

2 

19 

0 

0 

0 

0

164

Net 

runoff 

(acrefeet)

-6 

-9 

5

137

20 

25 

844 

215 

107 

-6 

1 

-6 

-7

1,183

t On last day of month.

"ote.- For months when Inflow to reservoir was small and other elements were relatively large, 

negative OP diacordant figures of Inflow OP runoff may appear. To the extent that such discrepancies may be attributed to inaccuracies in the capacity rating, quantities too small fop periods of 

falling stage in the reservoir are compensated by quantities too large for periods of corresponding 

rising stage. Inaccuracies in figures of draft or evaporation, which may be within reasonable 

limits in these figures, may result in disproportionately large inaccuracies in small figures of 

inflow or runoff computed as residuals.
142 SANTA YNEZ RIVER BASIN

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

Location.- Water-stage recorder on reservoir at Gibraltar Dam, lat. 34°31'37", long. 

-U9°41'10", and water-stage recorder and sharp-crested weir on outlet channel below 

dam, 7 miles north of Santa Barbara, Santa Barbara County. Datum of gage on reservoir is 21.53 feet (corrected) above mean sea level (Bureau of Reclamation bench mark) 

and is datum used by city of Santa Barbara for works in this vicinity.

Drainage area.- 219 square miles.

Records available.- April 1920 to September 1949 (monthly discharge only prior to October

J.94J.) .

Average discharge.- 29 years, 39.2 second-feet.

Remarks.- Records of discharge represent flow in Santa Ynez River passing Gibraltar Dam, 

computed on basis of records of spillway discharge and controlled release. Height of 

dam was increased in 1949. Sills of automatic gates on new spillway, at gage height 

1,378.82 feet. There was no flow over spillway during current year. Plow regulated 

by Gibraltar Reservofr and Jameson Lake. Figures of daily discharge are computed on 

basis of 24-hour interval ending at 6 p.m., Pacific standard time, on day for which 

they are shown. During year, city of Santa Barbara diverted 802 acre-feet from 

Gibraltar Reservoir and Montecito County Water District diverted 1,088 acre-feet from 

Jameson Lake for municipal use.

Cooperation.- Records of gage height furnished by city of Santa Barbara. 

Revisions (water years).- W 706: 1921, 1922. W 1041: 1944.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

z

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.

0.05 

.05 

.05

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

,06 

.05 

.06 

.06

.06 

.06 

.06 

.07 

.06

.06 

.06 

.05 

.05 

.05 

.05

Nov.

0.05 ."05

.05 

.05 

.05

.05 

.05 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.07 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

Dec.

0.06 

.06

.06 

.06 

.06

.06 

.06 

.06 

.05 

.05

.05 

.05 

.05 

.05 

.05

.05 

.05 

.05 

.05 

.05

.05 

.05 

.06 

.06 

.05

.05 

.05 

.04 

.05 

.05 

.05

Jan.

0.05 

.05 

.04 

.04 

.02

.01 

.02 

.03 

.05 

.05

.05 

.04 

.05 

.06 

.04

.04 

.03 

.03 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar. Apr.

Secondfoot -days

1.79 

1.74 

1.64

12.01

.70 

0 

0 

0 

0 

.55 

1.B& 

1.82 

1.64

11.72

May

Maximum

0.07 

.07 

.06

.11

.06 

0 

0 

0 

0 

.06 

.08 

.07 

.07

.08

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.02

.04 

.04 

.05 

.05 

.05

.06 

.06 

.06 

.06 

.06

July

0.06 

.06 

.06 

.05 

.06

.06 

,06 

.06 

.06 

.06

.06 

,06 

.06 

.05 

.05

.05 

.05 

.08 

.08 

.07

.06 

.06 

.06 

,06 

.06

.06 

.06 

.05 

.05 

.07 

.05

Minimum

0.05 

.05 

.04

0

0 

0 

0 

0 

0 

0 

.05 

.04 

.03

0

Aug.

0.04 

.04 

.07 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.05 

,06

.06 

.06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06 

.06

Mean

0.058 

.058 

.053

.033

.023 

0 

0 

0 

0 

.018 

.059 

.059 

.055

.032

Sept,

0.06 

,06 

.06 

.06 

.06

.06 

.06 

.06 

.06 

.06

.05 

.03 

.05 

.05 

.05

.05 

.06 

.06 

.07 

.06

.06 

.05 

.05 

.05 

.05

.05 

.05 

.05 

.05 

.05

Runoff ],n 

acre-feet

3.6 

3.5 

3.3

24

1.4 

0

0 

0 

0

1.1

3.6 

3.6 

3.3

23
SANTA YNEZ RIVER BASIN 

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

143

Location.- Water-stage recorder, lat. 34°32'35", long. 119°51'45", in San Mareos Grant, 

u.i 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 1949.

Extremes.- Maximum discharge during year, 191 second-feet Mar. 10 '(gage height, 4.77 

reet); no flow during most of year.

1947-49: Maximum discharge, that of Mar. 10, 1949. No flow during several months 

of each year.

Remarks.- Records fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these reservoirs to cities of Monteclto and Santa Barbara. 

Flow also affected by intermittent local pumping for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7

e

9 

10

ll 

\Z 

13 

14 

15

16 

17 

16 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.1 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3

.3

.3 

.4

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0.4 

.4 

2.5 

46 

4.3

2.1 

1.6 

1.3 

1.2 

34

25 

8.4 

4.3 

2.9 

2.6

2.4 

2.4 

2.4 

2.3 

1.8

1.5 

1.5 

1.4 

1.4 

1.4

1.4

1.4 

1.3 

1.2 

1.2 

1.2

Apr.

1.1 

1.1

1.0 

.9 

.9

.8 

.8 

.7 

.6 

.6

.6 

.3 

.4 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.2

.1

0 

.4 

.5 

.2 

0

Secondfoot -days

0 

0 

0

29 « 9

0 

4.6 

163.2 

16.2 

7.8 

2.3 

0 

0 

0

194.1

May

OOOOO OO iH

Maximum

0 

0 

0

7.3

0 

.4 

46 

1.1 

1.1 

.6 

0 

0 

0

46

June

OOOOO 1OO O

July

Minimum

0 

0 

0

0

0 

0 

.4 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.08

0 

.16 

5.26 

.54 

.25 

.08 

0 

0 

0

.53

Sept.

Runoff in 

acre-feet

0 

0 

0

59

0 .

9.1 

324 

32 

15 

4,6 

0 0' 

0

385
144 SANTA YNEZ RIVER BASIN

Santa Ynez River near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'20", long. iaO°01'.25", in Canada de los Pinos

 Grant ', at San Lucas Bridge. 500 feet upstream from Santa Agueda Creek, and 4 miles 

southeast of Santa Ynez, Santa Barbara County. Altitude of gage, about 500 feet.

Drainage area.- 435 square miles.

Records, available.- December 1928 to September 1931, October 1932 to September 1949..

Average' discharge.- 19"years (1929-31, 1932-49}, 104 second-feet.

Extremes,- Maximum discharge during year, 9.0 second-feet Mar. 20 (gage height, 2.73 feet);

 ho flow during 9 months of this year.

1929-31, 1932-49: 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 from August 1947 until March 1949 and at times in other years.

Remarks.- Records fair. Plow regulated by Jameson Lake and Gibraltar Reservoir. Water 

' ''diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. 

Some water for irrigation pumped from wells' along banks of river in valley upstream.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

Feb.

lendar year 1948

1................................ .....j.

ter year 1948-49 .......................

Mar.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.7

1.7

1.9 

2.1 

2.3 

4.5 

8.0

7.5 

6.2 

7i5 

8.0 

6.2

5.8 

5.4 

5.4 

5.4 

5.8 

6.6

Apr.

Secondfoot -day 6

0 

0 

0

0

0 

0 

91.0 

106.1 

1S.1 

0 

0 

0 

0

212.2

5.8 

5.8 

5.4 

6.0 

4.7

4.7 

4.7 

4.0 

3.7

3.7

3.4 

3.7 

3.4 

3.4 

3.4

3.7 

4.0 

3.7 

3.7 

2.9

2.7 

2.7 

2»3 

2.7 

2.9

2.5 

2.5

1.9 

1.7 

1.4

Bay

1.4 

1.3 

1.2 

1.2 

1.0

.9 

.9 

.6 

.6 

.6

.6 

.6 

.6 

.5 

.4

.4 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1 

0 

0 

0

Maximum

0 

0 

0

0

0 

0 

8.0 

5.8 

1.4 

0 

0 

0 

0

8.0

June

r

Minimum

July

0 

0 

0

0

0 

0 

0 

1.4

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

0

0 

0 

2.94 

3.54 

.49 

0 

0 

0 

0

.68

Sept.

Runoff In 

acre-feet

0 

0 

0

0

0 

0

lao

210 

30 

0 

0 

0 

0

420

Peak discharge (base, 150 sec.-ft.).- No peak above base.
SANTA YNEZ RIVER BASIN 145

Santa Ynez River at Solvang, 'Calif.

Location.- Water-stage recorder, lat. 34°3S lllO", long. 120°08'40", in San Carlos de Jonata 

urant at Mission Bridge, 25 feet downstream from Alisal Creek and 0.9 mile south of 

Solvang, Santa Barbara County.

Drainage area.- 585 square miles.

Records available.- October 1928 to November 1936, June 1937 to November 1940 (irrigation 

"seasons onlyj. October 1946 to September 1949. 1937 to 1946, rtany miscellaneous 

discharge measurements.

Average discharge.- 11 years (1928-36, 1946-49), 35.4 second-feet.

Extremes,- Maximum discharge during year, 525 second-feet Mar. 10 (gage height, 5.80 feet); 

rib' flow Oct. 1-14, July 14 to Sept. 30.

1946-49: Maximum discharge, 1,250 second-feet Nov. 20, 1946 (gage height, 6.15 

feet); no flow July 30 to Oct. 14, 1948, July 14 to Sept. 30, 1949.

Remarks.- Records fair. Plow regulated at Jameson Lake and Gibraltar Reservoir. Vater 

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 jn valley upstream.

Discharge, In second-feet, water year October 1948 to Septemoer 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 0 ' 

0

0 

0 

0

6

0

0 

0

Q

0

.1

.4 

.9

; al.5

Nov.

al.8 

al.s 

al.8 

1.8 

1.8

1.8 

1,8 

2.0 

2.0 

2.0

2.1 

2.3 

2.5 

2.5 

2.5

2.7 

2,7 

2.7 

2.7 

2.7

2.9 

3.1 

3.1 

3.1 

3.3

3.5 

3.5 

3.5 

3.5 

3.6

Dec.

3.8 

4.0 

4.0 

4.3 

4.3

4.3

4.3 

4.3 

4.0 

4.3

4.0 

3.8 

3.8 

4.0 

4.0

4.3 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.2 

5.2

SO 

25 

13 

11 

9.5 

7.7

Jan.

7.3 

6.9 

6.5 

5.6 

5.8

S.S 

5.8 

S.S 

5.8 

5.5

5.2 

5.2 

5.2 

5.2 

5.2

5.5 

5.5 

5.8 

6.5 

7.3

6.9 

7.3 

7.7 

7.7 

7.3

6.9 

£.9 

6.9 

6.9 

6.9 

6.5

Feb.

6.5 

6.S 

7.3 

6.9 

6.9

6.5 

6.5 

6.5 

6.5 

6.5

6.1 

6.1 

6.1 

5.8 

S.S

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebn 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

£eak discharge .(base, 150 aec. Tft.).- Dec

Mar.

4.9 

6.1 

7.1 

62 

10

8.2 

7.3 

6.9 

6.5 

90

66 

29 

14 

11

10

6.2 

7.3 

6.9 

17 

15

10 

6.6 

9.0 

8.6 

8.2

7.7 

7.3 

7.3 

6.9 

6.9 

6.5

Apr.

6.5 

6.5 

6.5 

6.1

' 6.1

6.1 

5.8 

4.9 

4.6 

4.6

4.6 

4.3 

4.3 

4.3 

4.6

5.2 

5.5 

5.5 

5.5 

5.5

S.2 

4.9 

4.9 

4.9 

4.9

3.8 

3.5 

3.1 

3.3 

3.3

Secondfoot-days

22,4 

77.3 

230.6

1,088.5

195.2. 

168.0 

480.4 

148.8 

86.0 

48.8 

6.5 

0 

0

1,464.0

. 26 (6 p.m.

May

2.9 

3.1 

3.3 

2.9 

2.7

E.5 

2.1 

1.8 

2.0 

2.3

2.3 

2.5 

2.5 

2.5 

2.5

2.3 

2.5 

2.7 

4.0 

5.2

4.9 

3.8 

3.1

a2.8 

a2.7

a2.6 

a2.5 

a2.4 

a2.3 

a2.2 

a2.1

Maximum

3.8 

50

50

7.7 

7.3 

90 

6.5 

5.2 

2.5 

.9 

0 

0

90

June

l'.S 

1.5 

1.4 

1.7

2.3 

2.5 

2.3 

2.1 

1.8

1.7 

1.7 

1.7 

1.7 

1.5

1.4 

1.3 

1.3 

1.2 

1.5

2.3 

2.0 

1,5 

1,4 

1.4

1.4 

1.2 

1.1 

1.0 

1.0

July

0.9

.a

.7 

.7 

.6

.6 

.5

.4 

.4 

.3

.3 

.2 

.1 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

Mini Mean *£%£

0 0.72 44 

1.8 2.58 163 

3.8 7.44 4S7

0 2.97 2,160

5.2 6.30 387 

5.5 6.00 3S3 

4.9 15,5 953 

3.1 4.96 295 

1.8 2.77 171 

1,0 1,63 97 

0 .21 13 

00 0 

00 0

0 4,01 2,900

) 250 sec. -ft.) Mar. 4 (3:30 a.m.) 180

see. -ft. j Mar. 10 (7 p.m.) 525 sec, -ft. 

a No gage-height record; discharge computed on basis of weather records and interpolation.
146 SANTA YNEZ RIVER BASIN

Santa Ynez River near Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'50", long. 120°14'30", in No.loqui Grant, 3 

miles west of Buellton, Santa Barbara County.

Record available.- June 1948 to September 1949 (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 Monticito and Santa Barbara. 

Some water for irrigation pumped from wells along banks of river in valley upstream.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0

0

0

0 

0

0' 

0 

0

0

a.E

Nov.

aO.E 

a.E 

a.E 

f .£ 

.3

.£ 

0 

.1 

.2 

.3

.3 

.3 

.£ 

0 

.3

.3 

.3 

.3 

.3

.4

.4 

.4 

.4 

.3 

.1

.3 

.3 

.£ 

.3 

.5

Dec.

tO. 4 

t.4

Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflir

June 

July 

Augu 

Sept

Wa

lendar year 1948

Smber. . ..... . ..... ..... . 

ber year 1948-49 ...............

Mar. Apr.

0.8 

.7 

.6

Secondfoot-days

3.4 

7.S

-

11.1

.1 

0 

0 

0

-

May

0.5 

.4 

.5 

.5 

.5

.1 

0

o

.1 

.1

.3 

.3 

.3

.3 

.4

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5

.4 

.4

.4 

.4 

.4 

.4 

.4 

.3

Maximum

.5

-

.5 

.]

0 

0 

0

-

June

0.1 

0 

6

0 

0

0 

0

o

0

0

0

0 

0 

0

0

0

0

0 

0 

0

o

0 

0

0 

0

0 

0 

0

o 

o

July

Minimum

0 

O

-

0 

0 

0 

0 

0

-

Aug.

Mean

0.11 

.26

-

.36 

.003 

0 

0

0

-

Sept.-

Runoff In 

acre-feet

6.7 

15

-

22

.2 

0 

0 

0

-

t Result of discharge measurement.

a No gage-height record; discharge computed on basis of recorded range In stage and records for 

station at Solvang.

f Computed on basis of partly estimated gage-height record.
SANTA YNEZ RIVER BASIN ! 

Santa Ynez River at narrows, near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'10", long. 120°25'30", in Canada de

Salsipuedes Grant, 0,5 mile upstream from Robinson Bridge, 2.0 miles downstream from 

Salsipudes Creek, and 2 miles east of Lompoc, Santa Barbara County.

Records available.- April 1947 to September 1949 (fragmentary).

Remarks.- Records good. Flow regulated at Jameson Lake and Gibraltar Reservoir. Water 

diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. 

Flow also affected by local pumping from ground water.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

(t)

Month

Goto 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Jan. Feb.

lendar year

Mar. Apr.

0.1 

.1 

.1

Secondfoot-days

0 

0

-

6.57 

1.20 

0 

0 

0

-

May

0.3 

.3 

.3 

.3 

.1

.07 

.07

.3 

.3 

.3

.3 

.3 

.2 

.07 

.1

.07 

.03 

.03 

.2 

.3

.2 

.3 

.3 

.3 

.06

.07 

.2 

.3 

.3 

.3 

.3

Maximum

0 

0

-

.3 

.4 

0 

0 

0

-

June

0.4 

- .2 

.03 

.07 

.1

.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

July

Minimum

0 

0

-

.03 

0 

0 

0 

0

-

Aug.

Mean

0 

0

-

.212 

.040 

0 

0 

0

-

Sept.

Runoff In 

acre-feet

0 

0

-

13 

2.4

0 

0 

0

-

t Observation of no flow made on this day.
148 SANTA YNEZ RIVER BASIN

Santa Ynez River near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'30", long. 130°25'50", near boundary of La 

mission Vieja de la Purisima Grant, at Robinson Bridge, 1.5 miles east of Lompoc, 

Santa Barbara County, and 3.5 miles downstream from Salsipuedes Creek. Datum of gage 

is 79.88 feet above mean sea level, datum of 1929.

Drainage area.- 790 square miles.

Records available.- November 1906 to September 1918 (1909, gage heights only), April 1925 

to September 1949.

Average discharge.- 33 years (1907-8, 1910-18, 1935-49)7 204 second-feet.

Extremes.- Maximum discharge during year, 1,500 second-feet Mar. 10 (gage height, 7.55 

feetJ; no flow during most of year.

1908-18, 1925-49: 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 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.

Revisions (water years).- W 931: 1914-40(M). W 981: 1938(M).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

-16 

17 

18 

19 

30

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

Octo 

Hove 

Dece

Ca

Janu 

Pebn 

Hare 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.6 

0 

0 

0

0 

0 

0 

0 

0

43 

25 

.1 

0 

0 

0

Jan. Feb.

Month

lendar year 1948

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

ter year 1948-49 .......................

Mar.

0

3.3 

58 

145 

19

8.0 

4.1 

2.4 

1.5 

250

96 

67 

38

21 

15

12 

11 

10 

19

17

12 

11 

11 

12 

10

8.5 

7,5 

7.0 

7.0 

7.0 

8.0

Apr.

8.0 

8.0 

7.0 

6.0 

5.2

4.8

4.1 

3.7 

3.1 

2.6

2.1 

1.9 

1.2 

.6 

.4

.3 

.4

.2

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot -days

0 

0

68.7

93.9

0 

0

898.3 

59.8 

0 

0 

0 

0 

0

1,026.8

May

Maximum

0 

0 

43

43

0 

0 

250 

8.0 

0 

0 

0 

0 

0

250.

June

Minimum

July

0 

0

0

0

0 

0

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

2.22

.26"

0 

0 

29.0

1.99 

0 

0 

0 

0 

0

2.81

Sept.

Runoff In 

acre-feet

0 

0

136

186

0 

0

1,780 

119 

0 

0 

0 

0 

Q

> 2,040

Peak discharge (base, 500 sec.-ft.).- Mar, 10 (6:30 p.m.) 1,500 sec.-ft.
SANTA YNEZ RIVER BASIN 149

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

Location.- Water-stage recorder, lat. 34°40ilO", long. 120°S7'20", in Lompoc Grant, at 

H Street Bridge on State Highway 1, 2 miles north of Lompoc, Santa Barbara County.

Records available.- April 1947 to September 1949.

Remarks. - Records good below 100 second-feet and fair above. Plow regulated by Jatneson 

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.

Discharge, in aecond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. 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

14 

36 

.6

0 

0 

0

Month

Goto 

Nove 

Deoe

Ca

Janu 

Feor 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

Jan. Feb.

lendar year 1948

ter year 1948-49 .......................

Mar.

0

0 

4.2 

164 

24

7.2 

2.4 

.4 

0 

215

103 

60 

31 

16 

8.4

2.8 

.6 

.2 

4.3 

13

6.6 

3.3 

4.1 

5.5

4.8

3.3 

2.6 

2.8

3.0 

2.1 

2.2

Apr.

1.4 

1.5 

1.4 

.5 

.1

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

Second- HJ

May

Ximum

0 0 

0 0 

50.6 36

50.6 36

0 0 

0 0 

696.8 215 

4.9 1.5 

0 0 

0 0 

0 0 

0 0 

0 0

752.3 215

June

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

MeAn

0 

0 

1.63

.14

0 

0 

22.5 

.16 

0 

0 

0 

0 

0

2.06

Sept.

Runoff In 

acre-feet

0 

0 

100

100

0 

0 

1,380 

9.7 

0 

0 

0 

0 

0

1,490

947809 O - 51 - 11
150 SANTA YNEZ RIVER BASIN 

Santa Ynez River at barrier, near Surf, Calif.

Location.- Water-stage recorder and compound broad-crested weir, lat. 34°41'25", long. 

i2U"3b'30", in Lompoc Grant, at salt-water barrier, 1.0 mile upstream from mouth and 

1.2 miles east of Surf, Santa Barbara County. Datum of gage is 5.5 feet above mean 

sea level, datum of 1929.

Records available.- May 1947 to September 1949.

Extremes.- Maximum discharge during year, 670 second-feet Mar. 11 (gage height, 2.58 feet), 

rrom rating curve based on weir table; no flow during several months.

1947-49: Maximum discharge, that of Mar'. 11, 1949; no flow during several months 

of each year.

Remarks.- Records poor. Plow at this station represents waste to the ocean. Flow regmated 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 river banks.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

O 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0

1.5 

15 

4.5 

1.3 

1.3 

1.3

Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

&ry

ter year 1948-49 .......................

Mar.

1.0 

1.2 

1.8 

62 

137

16 

5.0 

a3.5 

a2.5 

a2.0

260 

100 

80 

20.0 

10

6.0 

a4.0 

a2.0 

al.5- 

3.5

7.2 

a5.0 

a4.0 

a3.5 

a3.0

a2.5 

a2.0 

a2.0 

1.8 

2.2 

2.1

Apr.

Secondfoot -days

0 

0 

24.9

95.0

15.5

14.0 

754.3 

31.0 

18.6 

3.52 

1.68 

.31 

.68

864.49

May

Maximum

0 

0 

15

15

260

260

June

, 0.2

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

. e.08

Minimum

0

0 

0

0

1.

0

July

. eO.08 

. e.07

, e.03

Aug.

eO.Ol

Mean

0 

0 

.80

.26

.5 

.5 

0 24.3 

1.0 

.6 

.117 

.054 

.010 

.023

2.37

Sept.

I eO.04 

e.02 

. e.03

e.Ol

Runoff in 

acre -feet

0 

0 

49

1S9

31 

28 

1,500 

61 

37

3.3 

.6 

1.3

1,720

a No gage-height record; discharge computed on basis of weather records and interpolation.

e Daily discharge less than 0.1 sec.-ft.

Note.- Weir submerged by backwater from ocean tides during January. February, April, and May; 

monthly mean discharge computed on basis of 6 discharge measurements, made on Jan. 7, 18, Feb. 28, 

Apr. 11, 26, May 25, and weather records.
SANTA YNEZ RIVER BASIN 

Santa Cruz Creek above Stake Canyon, near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°37'40", long. 119°51'40", in San Marcos Grant 

1.5 miles upstream from Stuke Canyon Creek and 13 miles east of Santa Ynez, Santa 

Barbara County.

Records available.- May 1947 to September 1949 (fragmentary). 

Remarks.- Records fair. No regulation or diversion above station.

151

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.1 

.1 

.1 

.2 

.2

.1 

.1 

.1 

.1 

.2

.2 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2 

.2

Nov.

0.2 

.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3

Jan. Feb.

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

;er year .......................

Mar. Apr.

4.4 

4.5 

4.4

Seeondfoot-days

4.9 

6.3

-

102.3 

19.6 

7.1 

3.9 

2.0

-

May

3.9 

3.9 

3.9 

3.9 

3.8

3.5 

3.2 

3.2 

3.4

3.4

3.4 

3.2 

3.2 

3.4 

3.5

3.6 

3.8 

4.5 

6.1 

5.3

3.9 

3.4 

2.8 

2.3 

2.2

2.2 

2.0 

. 1.8 

1.8 

1.9 

1.9

Maximum

0.3 

.3

-

6.1 

1.8 

.5 

.2 

.2

-

June

1.8 

1.7 

1.3 

1.1 

1.0

.9 

.9 

.8 -.8 

.6

.5 

.5 

.5 

.5 

.4

.4 

.4 

.5 

.5 

.5

.5

.4 

.3 

.4 

.4

.4

.4 

.4 

.4 

.4

Minimum

July

0.4 

.3 

.4 

.4 

.5

.5 

.4

.4 

.3 

.3

.3 

.3 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2 

.1

0.1 

.1

-

1.8 

.3 

.1 

.1 

0

-

Aug.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.1 

.1 

.2 

.2 

.2

Mean

0.16 

.21

-

3.30 

.65 

.23

.13 

.07

-

Sept.

0.1

,1 

.1 

.1 

.1

.1 

0 

0

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0

o

0

0 

0 

0 

0 

0

.1

.2 

.2 

.1 

.1

Runoff In 

acre-feet

9.7

12

 -

203 

39 

14 

7.7 

4.0

-
152 SANTA YNEZ RIVER BASIN

Santa Cruz Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. 119°55'50", in Tequepis Grant, 

o;5 mile upstream from mouth and 10 miles southeast of Santa Vnez, Santa Barbara 

County. Altitude of gage, about 700 fest (from topographic map).

Drainage area.- 77.2 square miles.

Records available.- October 1941 to September 1949,

Extremes - Maximum discharge during year, 140 second-feet Mar. 11 (gage height, 2.63 feet); 

minimum daily, 0.2 second-foot Jan. 10-17.

1941-49: Maximum discharge not determined, occurred Jan. 22, 1943; minimum daily, 

0.1 second-foot on many days during period January to March 1948. '

Remarks.- Records fair. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

 Day

1

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.4 

.4 

.4 

.4 

.4

Nov.

0.4 

.4 

.4 

.4 

.3

,3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3

.3 

.3 

.3

.3 

,3 

.3 

.3 

.4

.4 

.4 

.4 

.4 

.4

Dec.

0.4 

.4 

,3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.4 

.6

.5 

.4 

.4

.4 

.4 

.4 

.4 

.4

1.1 

3.6 

2.0 

.6 

.4 

.3

Jan.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2

.2 

.2

.2 

.2 

.3 

.3 

17

12 

5.7 

4.5 

3,3 

1.7

.7 

.6 

.5 

.5 

.5 

.5

Feb.

0.5 

.5 

.5 

.5 

.5

,5 

.5 

.5 

.4 

.4

.4 

.4 

.4

,4 

.4

.4 

.4 

.4 

.4 

,4

.4 

.4 

.4 

.4 

2.6

2,5 

3.5 

2,2

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

wa

*>er........,............... f ............

lendar year 1948 

ary

i.......................................

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

ter year 1948-49 .......................

Mar.

1.4 

1.6 

2.8 

65 

33

16 

12 

10 

8.5 

10

70 

29 

17 

14 

10

8.9 

8.5 

8.0 

10 

12

8.0 

7.7 

8.9 

7.7 

7.3

6.3 

6.0 

7.1 

6.6 

6.3 

6.3

Apr.

5.7 

6.0 

6.3 

5.4 

5.7

6.0 

6.0 

5.7 

5.7 

5.4

5.1 

5.1 

5.1 

5.1 

4.8

4.5 

4.5 

4.3 

4,0 

3.8

3.3 

3,3 

3.1 

3.1 

3.1

3.1 

3.3 

5.1 

2.9 

2.9

Secondfoot-days

11.9 

10.0 

17.0

186.2

52.4 

21.2 

425.9 

135.4 

72.4 

27.5 

19,8 

15.5 

11.6

820.6

May

2.3 

2.3 

2.3 

2.5 

2.3

1.9 

1,7 

1.7 

1.7 

1.9

1.9 

1.7 

1.6 

1.9 

2.2

2.7 

2.9 

4.0 

6.6

6.0

3.8 

2.7 

2.2 

1.7 

1.6

1.6 

1.4 

1.4 

1.3 

1.3 

1.3

Maximum

0.4 

.4 

3.6

7.8

17 

3.5 

70 

6.3 

6.6 

1.3 

.7 

.6 

.5

70

June

1.3 

1.3 

1.2 

1.2 

1,1

1.0 

1.0 

1.0 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

,9 

.8 

.8 

.7 

.7

.7 

.7 

.7 

.7 

.7

Minimum

July

0.3 

.3 

.3

.1

.2

.4 

1.4 

2.9 

1.3 

.7 

.5 

.4 

.3

.2

0.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.7 

.7

,7 

.7 

.7 

.7 

.7

.7 

.7 

.7

.6 

.6

.5 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.6 

,6 

.6

Aug.

0.6 

.6 

,6 

.6 

.6

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5

,4 

.4 

.4 

.4 

.4

 5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.5 

.5 

.5

Mean

0.38 

.33 

,55

.51

1.69 

,76 

13.7 

4.51 

2.34 

.92 

.64 

.50 

.39

2.25

Sept.

0,5 

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

,4

.4 

.4

.4 

.4 

.4

.4 

.3 

.3 

,3 

.3

.3 

.3;s.3

.3

.4 

.4

.4 

.4 

,4

Runoff In 

acre-feet

24 

20 

34

371

104 

42 

845 

269 

144 

55 

39 

31 

23

1,630

Peak discharge (base. 100 sec.-ft.).- Mar. 4 (10 a.m.) 130 sec.-ft.; Mar. 11 (3 a.m.) 140 see.-ft.
SANTA YNEZ RIVER BASIN 153

Santa Agueda Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'40", long. 120°01'30", In Canada de los Pinos 

orarit, 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 1949.

Extremes.- Maximum discharge during year, 138 second-feet Dec. 26 (gage height, 1.67 feet); 

no flow July 30 to Aug. 18.

1941-49: Maximum discharge, 1,580 second-feet Mar. 3, 1941 (gage height, 4.60 feet); 

no flow July 30, to Aug. 18, 1949.

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

Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8

9 

10

\\ 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

B9 

30 

31

Oet.

0.1 

e.05

.1 

,1 

.2

.1 

.1 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.3 

.8

Nov.

0.9 

,8 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2 

.3 

.3

.3 

.3 

.3

.3

.3

.3 

.3 

.3 

.3 

.3

Dec.

0.3 

.3

a. 3

a. 2

.2

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

7*4 

.8 

.5 

.4 

.4 

.4

Jan.

0.4 

.4 

.3

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

PSb.

0.2 

.2 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.2 

.2 

.2

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 50 see.. -ft.).- Dec.

Note.- Doubtful gage-height record Aug. 12

Mar.

0.2 

.2 

.3 

.3 

.3

.3 

.2 

.2

.2 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

Apr.

0.2 

.2 

.2 

.2 

,2

.2 

.2 

.2 

.2

.2

.2 

.3 

.3

.3 

.3

.2 

.2 

.2 

.2 

.2

.2

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

May

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

Second- uo,<-,.« foot-days Maximum

3.4 0.8 

7,6 .9 

15.8 7.4

78.5 7.4

7.5 .4

7.9 .3 

6.8 .3 

6.4 .3 

6.2 .2 

5.1 .2 

2.34 .2 

.69 

2.20

71.93 7.4

June

0.2 

.2 

.2 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 J 

.2

Minimum

.

-

.2

0 

0

0

July

0.2 

.2 

.2 

.2 

.2

.2

.2 

.1 

.1 

.1

.1

e.03

0 

0

AUg.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0

.05 

.06

sept.

I 0.06 

.07

.08

Meatt Runoff in 

"ean aere-feet

0.11 6.7 

.25 15 

.51 31

.21 154

.24 15 

.28 16 

.22 13 

.21 13 

.20 12 

.17 10 ' 

.075 4.6 

.022 1.4 

.073 4.4

.197 142

26 (4 p.m.) 138 Sec. -ft. 

to Sept. 30; discharge computed on basis of 4 discharge

measurements, fragmentary gage-height record; and records for Salsipuedes Greek near Lompoc. 

a Mo gage-height record; discharge interpolated. 

e Daily discharge less than 0.l sec.-ft.
154 SANTA YNEZ RIVER BASIN

La Zaca Creek at Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'35", long. 120°11'15", in San Carlos de Jonata 

llrant, 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 1949.

Extremes.- Maximum discharge during year, 185 second-feet Mar. 4 (gage height, 3.78 feet); 

no flow during most of year.

1941-49: Maximum discharge, 874 second-feet Mar. 3, 1941; maximum gage height, 6.80 ' 

feet Mar. 4, 1941; no flow during most of each year.

Remarks.- Records good. Water used for washing a local driveway twice daily during spring, 

drained into gage pool.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

.05 

.06 

0 

0 

0

0 

0 

0 

0 

0

3.3

.04 

0 

0 

0 

0

Jan. Feb.

0 

0 

.01 

0 

0

0 

.2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

.01 

0

.07 

.01 

0

Month

Octo 

Hove 

Deoe

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0

.1

2.8 

12 

0

0 

0 

0 

0

1.7

1.8 

.03 

0 

0 

0

0 

0 

0 

1.5 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot-days

0 

0 

3.45

3.45

0

.30 

19.93 

0 

.2 

0 

0 

0 

0

23.88

May

0

0 

0 

0 

0

0 

0 

0 

0 

0

"0 

0 

0 

0 

0

0 

0 

0 

.2 

0

0

0

o

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

3.3

3.3

0 

.2 

12 

0 

.2 

0 

0 

0 

0

12

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Attg.

. Mean

0 

0 

.111

.009

0 

.011 

.643 

0 

.008 

0 

O 

0 

0

.065

Sept.

Runoff In 

acre-feet

0 

0 

6.8

6.8

0 

.6 

40 

0 

.4 

0 

0 

0 

0

48

Peak discharge (base, 1.0 sec.-ft.).- Dec. 26 (4:30 p.m.) 35 sec.-ft.; Mar. 4 (l a.m.) 185 see.-ft.
SANTA YNEZ RIVER BASIN 

Salsipuedes Creek near Lompoc, Calif.

155

Location.- Water-stage recorder, lat. 34°34'b5", long. 120°24 ( 35", near northern edge of 

San Julian Grant, at highway bridge on Jalama road, just downstream from El Jaro Creek 

and 5 miles southeast of Lompoc, Santa Barbara County. Altitude of gage, about 230 

feet (from topographic map).

Drainage area.- 46.6 square miles,

Records available.- January 1941 to September 1949.

Extremes.- Maximum discharge during year, 1,450 second-feet Mar. 10 i(gage height, 8.63 

I'eet); daily discharge less than 0.1 second-foot Oct. 1 to Nov. 15, July 1 to Sept. 30.

1941-49: 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; 

daily discharge, 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 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

leo.06 

I e.05

e.07

I e.06 

e.07

Nov.

Ie0.07 

I e.08

I e.09

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

1.3 

3.2 

.6 

.4

.4

.4 

.4 

.4 

.4 

.4

65 

f8.5 

1.8 

1.1 

.8 

.6

Jan.

0.6 

.5 

.4 

.4 

.3

.3 

.3 

.4 

.4 

.5

.6 

1.0 

1.0 

.8 

.7

.6 

.6 

.5 

.7

1.4

1.2 

2.4 

2.3 

1.2 

.9

.7 

.7 

.6 

.6 

.6 

.6

Feb.

0.6 

.6 

.9 

.8 

.8

.7 

3.5 

1.5 

.8 

.7

1.0 

1.2 

.8 

.7 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.7 

.9 

1.6

1.3 

3.2 

2.0

Month

Octo 

Nove 

Dece

Ca

Janui 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ber year 1948-49 .......................

Mar.

1.2 

23 

98 

91 

alo

a7.0 

f4.8 

3.6 

3.2

270

46 

15 

9.0 

6.9 

5.8

5.1

4.4 

3.7 

8.1 

4.4

3.3 

3.1 

d2.9 

d2.7 

d2.5

d2.3 

d2.1 

dl.9 

fl.8 

1.7 

dl.6

Apr.

dl.6 

dl.5 

dl.5 

dl.5

1.4

1.4 

dl.4 

dl.4 

dl.5 

dl.5

1.5 

1.5 

1.5 

1.5 

1.5

1.4 

1.9 

1.6

1.4 

1.3

1.2 

1.0 

.9 

.8 

.8

.8 

.8 

.6 

.6 

.5

Secondfoot -days

1.97 

3.20 

89.0

277.84

23.8 

29.1 

646.1 

37.8 

19.0 

5.2 

1.80 

1.26 

2.30

860.53

May

0.6 

.6 

.6 

.6 

.6

.6

.6 

d.5 

d.5 

f.5

.5 

.5 

.6 

.6 

.6

.6 

.7 

1.2 

2.4 

1.6

.8 

.6 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.2 

.2

Maximum

0.2 

65

65

2.4 

3.5 

270 

1.9 

2.4 

.3

270

June

0.2 1 

t2 

.2 

.1

.1

 1 

.2 I 

.2 

.2 

.2

.1 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.2

.2 

.1 

.1 

.1 

.2

.2 1 

.2

.1 

.1 

.1

Minimum

.2

-

.3 

.6 

1.2 

.5 

.2 

.1

-

July

. eO.08

e.06 

e.03

Aug.

. eO.02 

e.O4 

. e.06

Mean

O.O64 

.107 

2.87

.759

.77 

1.04 

20.8 

1.26 

.61 

.17 

.058 

.041 

.077

2.36

Sept.

! eo.oa

e.07 

e.08

Runoff in 

acre-feet

3.9 

6.3 

177

551

47 

58 

1,280 

75 

38 

10 

3.6 

2.5 

4.6

1,710

Peak discharge (base, loo sec.-ft.).- Dec. 26 ( 4:3O p.m.) 373 sec.-ft.; Mar. 3 (11:30 p.m.) 500 

sec.-ft. ; Mar. 10 (6:30 p.m.J 1,450 sec.-ft.

a No gage-height record) discharge Interpolated.

d Doubtful gage-height record} discharge interpolated.

e Daily discharge, less than 0.1 sec.-ft.

f Computed on basis of partly estimated gage-height record.
156 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 fiigtway bridge 0.85 mile south of Harris, Santa Barbara County, ftatum of gage is 

306.56 feet above mean sea level, datum of 1929.

Drainage area.- 101 square miles.

Records available.- January 1941 to September 1949.

Extremes.- Maximum discharge during year, 77 second-feet Mar. 3 (gaga height, 4.19 feet); 

no'flow during most of year.

1941-49: Maximum discharge, 1,880 second-feet Mar. 3, 1941 (gftge 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 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

£4 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

O 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

.4 

3.7 

0 

0 

0 

0

Jan. Feb.

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

mber. ...................................

lendar year 1948

Peak discharge [base, 5 sec. -ft.).

ft.; Mar. 10 (11:15 p.m.) 11 sec.-ft

Mar.

0 

0 

4.5 

19 

2.1

.6 

.2 

.2

.1 

2.2

2.1

!s

.2

.2

.2 

.2 

,1 

4.4 

2.9

.7 

.6 

1.7 

.8 

.6

.3

,3 

.2 

.1 

.1 

.2

Apr.

0.2 

.2 

.2 

.1 

.1

\Z 

.2 

.2 

.2

0 

0 

O 

.1 

.1

.1 

.1 

.1

.1 

0

0 

0

0 

0

0

0

0 

0 

0 

0

May

fSays "«*«

o o

0 0 

4.1 3.7

4.3 3.7

0 0 

0 0 

45.9 19 

2.4 .2 

0 0 

0 0 

0 0 

0 0 

0 0

52.4 19

June July Aug. Sept.

Mini, Mean ££$£

00 0

op o

0 .13 8.1

0 .01 8.5

00 0 

00 0 

0 1.48 91 

0 .08 4.8 

00 0 

00 0 

00 0 

00 0 

00 0

0 .14 104

- Pec, 27 (2f20 a.m.) 21 sea. -ft.; Mar. 3 (11:40 p.m.) 77 sec.- 

.; Mar. 19 (8 p.m.) 15 sec. -ft.
SANTA MARIA RIVER BASIN 157

Cuyama River near Ventucopa, Calif.

Location.- Water-stage recorder, lat. 34°41'10", long. 119°21 I 30", in NE^SWi sec. 19, f. 

7"n.',' K. 23 W., at Ozena Bridge on U. S. Highway 399, 4.5 miles downstream from confluence of Dry Canyon and Alamo Creek and 12 miles southeast of Ventucopa, Santa 

Barbara County. Altitude of gage, about 3,500 feet.

Drainage area.- 90 square miles.

Records available . - November 1944 to September 1949. Miscellaneous discharge measurements, June 1943 to September 1944.

Extremes.- Maximum gage height during year, 4.39 feet Mar. 10 (discharge not determined); 

minimum daily dis-charge, 0.1 second-foot on many days during period June to September.

1944-49: Maximum discharge probably occurred Mar. 30, 1946 (data inadequate for 

accurate determination of magnitude); maximum stage uncertain. Figures published in 

Water-Supply Paper 1061 are of uncertain accuracy. Minimum daily discharge, 0.1 secondfoot on many days during period June to September 1949.

Remarks . - Records poor.

Discharge, In second-feet, water year October 1948 to September 1949

Day

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.

0.4 

.4 

.4 

.5 

.6

.6

.5 

.5 

.5 

.6

.6 

.6 

.8 .-8 

.8

.8 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.8 

.8

.8 

.8 

.8 

.8 

.9 

.8

Nov.

0.6 

.6 

.6 

.8 

.8

.8 

.9 

i9 

.9 

.9

.9 

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 

1.2 

1.0 

1.0 

1.0

Dec.

1.0 

1.0

1.4 

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 

3.0 

1.8 

1.6 

1.4

1.2 

1.0 

1.0 

1.0 

1.0

1.4 

8.9 

2.1 

2.1 

2.1 

1.8

Jan.

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8

1.8

2.1

2.7 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.7

2.7

2.7 

2.4 

2.0 

2.0

2.0 

2.0 

2.0 

2.0 

2.0 

2.0

Feb.

2.0 

2.4 

2.4

2.1 

2.1

2,1 

2.7 

2.4 

2.1 

2.1

2.4

2.1 

2.0 

1.8

1.4 

1.4 

2.7 

2.4 

2.1

'2.1 

2.1 

2.1 

2.1 

2.1

1.8

1.8 

1.8

Month

Octo 

Hove 

Deoe

ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

wa

lendar year 1948

'

ter year 1948-49 .......................

peak discharge (base, 50 sec. -ft.).- Mar.

Mar.

1.8 

1.8 

1.8 

9.5 

3.3

3.0 

2.7 

2.4

1.8 

16

37

2.7 

2.7 

2.7

2.4 

2.4 

2.4 

2.4 

2.4

2. 

2. 

2. 

2.

1.

1.2 

1.6 

1.8 

1.8 

2.4 

3.0

Apr.

2.7 

2.7 

2.7 

2.7 

3.7

4.0 

6.6

6.1 

5.7 

5.4

5.1

4.5 

4.2 

3.9

3.6 

3.3 

3.0 

3.0 

3.0

3.3 

2.7 

2.4

1.6 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

Secondfoot-days

20.1 

30.7 

50.8

542.3

66.1 

58.7 

126.7 

100.7 

33.5 

11.7 

3.4 

3.1 

5.0

S10.5

May

1.6 

1.6 

1.6 

1.4 

fl.2

fl.O 

fl.O 

fl.O 

fl.O 

 f.8

f.8

f.6 

fl.2 

f.9

fl.O

1.2 

1.2 

2.4 

1.8

1.2 

1.0 

.9 

.8 f.a

f.8 

f.8 

f.8 

f.8 

.9 

.9

Maximum

0.9 

1.2 

8.9

8.9

2.7 

2.7 

37 

6.6 

2.4 

1.0 

.2 

.1 

.3

37

June

1.0 

1.0 

.9 

.5 

.&

f.4 

f.4 

f.4 

f.4 

f.4

f.4

f.4 

.3 

.3

.2

.3 

.4 

.4 

.4

.4 

.4 

.2 

.2 

.2

.2 

.2

.2 

.1 

.1

July

0.1 

.2 

.2

.1

.1

.1 

.1 

.2 

.1

.1

.1

.1 

.1 

.1

.1

.1 

.1

,1 

.1

.1 

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

.1 

.1

.1

Minimum Mean

0.4 ' 0.65 

.6 1 . 02 

1.0 1.64

.2 1 . 48

1.8 2.13 

1.4 2.10 

1.2 4.09 

1.6 3.36 

.5 1.08 

.1 .39 

.1 ,.11 .1 ao

.1 .17

.1 1 . 40

Sept.

0.1 

.1 

.1 '.1 

.1

.1

.1 

.1 

.1 

.1

.1

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

Runoff in 

acre-feet

40

61 

" 101

1,080

131 

116 

£51 

200 

66 

23 

6.7 

6.1 

9.9

1,010

10 (10:40 p.m.) 101 sec. -ft.

f Computed on basis of partly estimated gage-height record. 

Note.- Ho gage-height record Dec. 2, 16-18, 24, Deo. 28 to Jan. 9, Jan. 16, 17, Jan. 2* to Feb. 8, 

Feb. 12-15, Feb. 19 to Mar. 3, Mar. 4-5, 13-20, Her. 29 to Apr. 3, Apr. 9-17, and doubtful gageheight recdrd Deo. £7; discharge computed on basis of l discharge measurement, recorded range in
158 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 bridge 3 miles upstream from Alamo Creek and 10 miles northwest 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.

Hecords available.- December 1929 to September 1949.

Average discharge?- 19 years (1930-49), 23.3 second-feet.

Extremes.- Maximum discharge during year, 31 second-feet Mar. 4; no flow Oct. 1 to Dec. 16.

 1929-49: Maximum discharge, 17,300 second-feet Mar. 3, 1938 (gage height, 16.6 feet), 

by slope-area method; no flow for long periods in some years.

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

Some water for irrigation pumped from wells in valley above station.

Discharge, in second-feet, water year October 1943 to September 1949

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.

'

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

.4 

1.5 

1.6 

.8

.1 

.02 

.03 

.04 

.2

3.7 

14 

9.0 

8.6 

5.7 

4.0

Jan.

3.8 

3.8 

f3.2 

f2.4 

1.8

3.0 

5.0 

5.9 

4.8 

3.4

3.9 

2.8 

5.5 

6.5 

5.3

4.8 

3.9 

5.1

6.2 

9.0

7.9 

8.6 

11 

11 

9.0

7.9 

7.6 

7.6 

6.5 

6.5 

6.2

Feb.

6.2

6.2 

7.2 

7.2 

7.2

7.2 

8.3 

8.6 

7.6

7.2

7.9 

8.3 

7.6 

6.9 

6.2

6.2 

5.9 

5.6 

5.6 

5.6

5.6 

5.6 

5.3 

7.9 

7.9

7.9 

9.4 

9.0

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

ftfav

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

Mar.

8.3 

8.3 

10 

24 

24

21 

16 

14 

12 

14

22 

21 

17 

18 

16

15 

14 

14 

17 

16

14 

14 

13 

13 

12

10 

9.4 

8.5 

8.1 

8.1 

8.1

Apr.

7.3 

8.1 

7.7 

6.9 

6.9

6.9 

6.8 

6.5 

5.8 

5.8

6.1 

6.1 

5.8 

5.2 

4.9

4.9 

5.2 

5.5 

6.5 

6.1

4.9 

4.0 

3.8 

3.3 

2.7

2.5 

2.5 

1.8 

1.4 

1.2

Secondfoot-dayS

0 

0 

49.89

943.88

179.9 

197.3 

439.8 

153.1 

38.2 

9.4 

4.22 

2.75 

1.23

1,075.79

May

1.2 

1.2 

1.3 

1.2 

1.2

.9 

.8 

.8 

.8 

.8

.7 

.7 

.7 

1.0 

.9

.8 

.9 

1.4 

4.0 

4.6

2.7 

2.0 

1.2 

.9 

.9

1.0 

1.0 

.7 

.7 

.7 

.5

Maximum

0 

0 

14

19

11 

9.4 

24 

8.1 

4.6 

.7 

.2 

.1 

.09

24

June

0.5 

.4 

.2 

.3 

.3

.3 

.3 

.3 

.3

f.3

a. 3 

a. 3 

f.3 

.3 

.2

.3 

.4 

.7 

.6 

.4

.4 

.3 

.2 

.2 

.2

.2 

.2 

.3

.2 

.2

July

0.2

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

a.l 

a.l 

a.l 

a.l 

a.l

a.l 

a.l

a.l 

a.l 

f.l

.1

,09 

.08 

.06 

.05 

.04

Minimum

0 

0

0

0

1.8

5.3 

8.1 

1.2 

.5 

.2 

.04 

.04 

.01

0

Aug.

0.04 

.04 

.05 

.04 

.06

.08 

.09 

.08 

.08 

.09

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Maan

0 

0 

1.61

2.58

5.80 

7.05 

14.2 

5.10 

1.23 

.31 

.136 

.089 

.041

2.95

Sept.

0.09 

.09 

.09 

.09 

.09

.09 

.08 

.06 

.06 

.06

.oe

.06 

.05 

.03 

.03

.03 

.02 

.02 

.02 

.01

.01 

.01 

.01 

.01

.01

.01 

.01 

.01 .01 ' 

.01

Runoff In 

acre-feet

0 

0 

99

1,870

357 

391 

872 

304 

76 

19 

8.4 

5.5 

2.4

2,130

Peak discharge (base, 200 see.-ft.).- No peak above base.

a No gage-height record: dischawe Interpolated 

f Computed on basis of partly estimated gage-height record.

Santa Maria River at Guadalupe, Calif.

Location.- Water-stage recorder, lat. 34°58'25", long. 120°34'15", in duadalupe Grant,

 at State highway bridge 0.5 mile north of Guadalupe, Santa Barbara County. Datura 

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.

Heeords available.- January 1941 tc September 1949.

Extreme's.r Ho flow during year.

 T951-49: Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.00

feet); no flow daring several months of each year. 

Remarks.- No flow since Jan. 18, 1947. Several small surface diversions and extensive

 pumping from ground water in basin above station for irrigation, and considerable 

losses of surface flow by Infiltration to ground water. During wet years when water 

table is high, returns from ground water in lower part of basin cause surface flow at 

this station.
SANTA MARIA RIVER BASIN 

Alamo Creek near Santa Maria, Calif.

159

Location.- Water-stage recorder, lat. 35°00'40", long. 120°18'45", in Suey Grant, at 

highway bridge 1.2 miles upstream from mouth and 9 miles northeast of Santa Maria, 

Santa Barbara County. Datum of gage is 581.14 feet above mean sea level, datum of 

Drainage area.- 87.7 square miles.

Records available.- October 1943 to September 1949.

Extremes.-Maximum discharge during year, 4.1 second-feet Dec. 26 (gage height, 2.30 feet); 

minimum daily, less than 0.1 second-foot during several months.

1943-49: Maximum discharge, 700 second-feet Feb. 2, 1945 (gage height, 4.34 feet); 

minimum daily, less than 0.1 second-foot on many days during period July to September 

1949.

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

rair. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.2 

.2 

.2

.3 

.3

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4

.4 

.4

.4

.3 

.4 

.5 

.6 

.6 

.5

Nov.

0.4 

.4

.4 

.3 

.3

.3 

.3 

.3 

.3

.4

.4

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.4

.4 

.3 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.4

Dec.

0.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.3

.3 

.3

.3 

.5

.4

.8 

1.4 

.6 

.5 

.5

.5 

.5 

.5

.5 

.5

1.3 

1.9 

.9 

.7 

.6 

.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc

Apri 

Mav

June 

July 

Augu 

Sept

Wa

Jan.

0.6 

.5 

.4 

.4 

.4

.4 

.5 

.5 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.5 

.7 

.9

.8 

.9 

.9 

.6 

.5

'.I

Feb.

0.4 

.4

.4 

.4

.4

.4 

.5 

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.4

.4 

.4 

.4 

.4

.4 

.4 

.4 

.6 

.4

.4 

.4 

.4

lendar year 1948

ter year 1948-49 .......................

Mar.

0.3 

.4

.6 

1.1 

.9

.7 

.6 

.5 

.4 

.7

1.0 

.8 

.7 

.7 

.6

.6 

.5 

.5

1.4 

1.1

.9 

.7 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.4 

.4

Apr.

0.4 

.4 

.4

.4 

.4

.4 

.4

.4 

.4

.4

.4 

.4 

.4

.4 

.4

.4 

.4 

.4

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.5 

d.3

Secondfoot -days

11.6 

10.5 

18.0

220.6

15.5 

11.5 

19.6 

10.8 

7.3 

2.90 

2.29 

.91 

.35

111.25

May

dO.3 

d.3 

d.3 

d.2 

d.2

d.2 

d.2 

d.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.4

.7 

.4

.2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.1

Maximum

0.6 

.4 

1.9

1.9

.9 

.6 

1.4 

.4 

.7 

.1

1.9

June

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1

.1

.1 

.1

!i .1

.1 .1 .1

e.09

.1 

.1

Minimum

July

0.2 

.3 

.3

.2

.4 

.4 

.3 

.3 

.1

-

sO.09 

e.08

e.06

Aug.

eO.05 

e.04

e.03

e.02 

e.Ol

Mean

0.37 

.36 

.58

,60

.50 

.41 

.63 

.36 

.24 

.097 

.074 

.029 

.012

.305

Sept.

eO.Ol 

e.02

e.Ol

Runoff in 

acre-feet

23 

21 

36

438

31 

23 

39 

21 

14 

5.8 

4.5 

1.8 

.7

221

Peak discharge (base, 5 see.-ft.).- No peak above base, 

d Doubtful gage-helgnt record! discharge interpolated, 

e Daily discharge leas than 0.1 sec.-ft.
160 SANTA MARIA RIVER BASIN

Huasna River near Santa Maria, Calif.

Location.' Water-stage recorder, lat. 35°01'20", long. 12Q 0 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 1949.

Average discharge.- 19 years (1930-49), 21.3 second-feet.

Extremes.- Maximum discharge during year, 7,1 second-feet Mar. 4 (gage height, 1.63 feet 

at temporary gage currently in use); no flow during several months.

1929-49: Maximum discharge, 11,400 second-feet Feb. 11, 1938 (gage height, 11.26 

feet), by slope-area method; no flow during parts of several years.

Remarks.- Records good. No diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Cay

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

Octo 

Hove 

Deqe

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

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

,4 

3.4 

2,2 

1.1 

1.0 

.9

Jan.

0,7 

.7 

.6

.a

.6

,6 

.6 

.6 

.6 

.6

.6 

.6 

.7

.6

.6 

.6 

.7 

1.0

1.8

1.3 

' 1.8

Z.I 

1.7 

1.4

1.2 

1.1 

1.1 

1.1 

1.1 

1.1

Feb.

liO 

1.0 

1.4 

1.4

1.7

1.6 

2.7 

2.1 

1.6 

1.6

1.9 

1.7 

1.6

1.3

1.2 

1.2 

1.2

1.2

1.2

1.2 

1.2 

1.2 

1.8 

1.9

2.1 

2.7 

2.2

Month

lendar year 1948

1,.... ..................................

ter year 1948-49 .......................

Mar.

2.2 

2.2 

2.9 

5.9

4.1

3,1 

3.1 

S.7 

2.5 

2.9

3.4 

2.7 

2.2

1.9

1.9

1.8 

1.7 

2.6 

2.4

1.8 

1.7 

1.8 

1.8 

i-4

1.3

1.2 

1.2

1.1 1.1 1.1

Apr.

1.1 

1.1 

1.1 

1.0 

1.0

1.0 

1.0

1.1 

1.1 1,1

.9

.9

1.0

1.1

1.1 

1.2 

1.3 

1.3 

1.2

1.0 

1.0 

.9 

.9 

.8

.7 

.6 

.6 

.5 

.5

Seconafoot-days

o 

0

9.0

220.3

29.1 

44.4 

69.8 

29.1 

11.2 

.9 

0 

0 

0

193.5

May

0.4

.4 

.4 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.4 

.5

.5 

,5

.6 

1.1 

.8

.6 

.5 

.4 

.3

,3

.3 

.2 

.2

.2 

.2 

.2

Maximum

0 

0 

3.4

4.8

2.1 

2.7 

5.9 

1.3 

1.1 

.2 

0 

0 

0

5.9

June

0.2 

.2 

.2 

.1 

.1

.1 

0 

0 

0 

0

0 

O 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

0 

0 

0

0

.6

1.0

1.1 

.5 

.2 

0 

0 

0 

0

0

Aug.

Mean'

0 

0 

,29

.60

,94 

1.59 

2.25 

.97 

.36 

.03 

0 

0 

0

.53

Sept.

Runoff In 

acre -feet

0 

0

18

437

58 

88 

138 

58 

22 

1.8 

0 

0 

0

384

Peak discharge (base, 10 sec.-ft.).- No peak abpve base.
SANTA MARIA RIVER BASIN 161

Sisquoc River near Sisquoo, Calif.

Location.- Water-stage recorder, lat. 34°50'15", long. 120°10'10", in SE£ sec. 20, T. 9 N. 

K. 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, generally used for periods of low flow, was used for entire current year.

Drainage area-- 290 square miles.

Reaords available.- October 1943 to September 1949. December 1929 to September 1933 at" 

site of permanent gage, but below diversions; records comparable for high flow only.

Extremes.- Maximum discharge during year, 200 second 1 feet Mar. 11 (gage, height, 1.98

reet ) ; minimum daily, 0.6 second-foot on many days in October, November, and December. 

1930-33, 1943-49: Maximum discharge, 6,250 second-feet (including diversions) Feb. 

8, 1932 (gage height, 6.17 feet); minimum not determined previously published minima 

did not include diversions); minimum daily since 1943, 0.4 second-foot Sept. 14, 19, 

21, 1947.

Maximum discharge known, 11,000 second-feet Mar. 2, 1938 (gage height, 8.1 feet, 

from high-water mark in permanent gage well), from rating curve extended above 2,80C 

second-feet.

Remarks.- Records good. Records show discharge of Sisquoc River above all diversions, 

ana above .area of percolation losses.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.6 

.6 

.8 

.8 

.8

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.8 

.8 

.8

Nov.

0.8 

.8 

.8 

.8 

.6

.6 

.6 

.6 

.6

.6

.6 

.6 

.6 

.8 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

' Dec.

0.6

.6 

.6 

.6 

.6

.6 

.8 

.9 

.8 

.8

.8 

.8 

.9 

1.0 

.9

1.0 

.9 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

.9

1.7 

2.4 

1.8 

1.6 

1.3 

1.1

Jan.

1.1 

1.0 

1.0 

al.o 

al.o

a. 9 

a. 9 

a. 9 

a, 9 

a. 9

a. 9 

a. 8 

a. a 

a. 8 

a. 8

a. 8 

.8 

.9 

.9 

1.0

1.0 

1.1 

1.3 

1.1 

1.1

1.0 

1.0 

1.0 

1.0 

.9 

.9

Feb.

0.8 

.8 

.9 

.9 

.9

.9 

1.1 

.9 

.8 

.8

.8 

.8 

.8 

.8 

,9

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 1.1 1.1

1.4 

1.4 

1.3

Month

Oeto 

Nove 

Dece

ca

Janui 

Febr 

Hare 

Apri

Mja*.

June 

July 

Augu 

Sept

Ha

mber. ...................................

lender year 1948

ter year 1948-49 .......................

Mar.

1.2 

1.2 

1.8 

2.9 

6.2

7.0 

4.8 

4.1 

3.5 

3.8

89 

93 

52 

38 

32

25 

22 

19 

24 

40

40 

30 

38 

41 

36

29

25 

24 

35 

29 

29

Apr.

26 

23 

23 

22 

20

22 

25 

24 

23 

23

24 

24 

24 

23 

22

22 

22 

19 

17 

16

15 

13 

12 

11 

10

10 

9.3 

8.7 

8.7 

8.1

Secondfoot -days

19.8 

19.0 

30.4

386.7

29.5 

27.2 

826.5 

549.8 

147.8 

82.2 

53.4 

38.6 

30.3

1,854.5

May

7.5 

6.6 

6.1 

5.6 

5.2

5.2 

4.8 

4.5 

4.5 

4.1

4.1 

4.1 

4.1 

4.5 

4.5

4.5 

4.5 

5.6 

6.6 

5.6

5.2 

5.2 

4,8 

4.1 

3.8

3.8 

3.8 

3.8 

3.8 

3.8 

3.5

Maximum

01.8 

.8 

2.4

2.4

1.3 

1.4 

93 

26 

7.5 

3.2 

2.2 

1.4 

1.2

93

June

3.2 

3.2 

2.9 

2.9 

2.9

2.9 

2.9 

2.9 

2.9 

2.9

2.9 

2.9 

3.2 

3.2 

3.2

3.2 

2-. 9 

2.9 

2.9 

2.9

2.4 

2.4 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

July

2.2 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

1.8 

1.8 

2.0

2.0 

2.0 

2.0 

2.0 

1.8

1.8 

1.6 

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

Minimum

0.6 

.6 

.6

.6

.8 

.8 

1.2 

8.1 

3.5 

2.2 

1.4 

.9 

.9

.6

Aug.

1.4 

1.3 

1.3 

1.3 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.3 

1.2 

1.2 

1.0

.9 

.9 

.9 

.9 

.9 

.9

Mean

0.64 

.63 

.98

1.06

.95 

.97 

26.7 

18.3 

4.7.7 

2.74 

1.72 

1.25 

1.01

5;08

Sept.

0.9 

1.0 

1.2 

1.2 

1.2

1.2 

1.0 

1.0 

1.0 

1.0

1.0

1.0 

1.0 

1.0 

1.0

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

Runoff in 

acre-feet

39

38 

60

767

 59 

54 

1,640 

1,090 

293 

163 

106 

77 

60

3,680

Peak discharge (base. 50 see, -ft.).- Mar. 11 (3:30 o.m.) 200 sec. -ft.

lEcharge Interpolated.
162 SANTA MARIA RIVER BASIN

Sisquoc River near Garey, Calif.

Location.T Water-stag? recorder, lat. 34°51'4b", long, 120"15 I 45", in NE£ sec. 17, T,

" 9 D'., K. 32 W., 0.5 mile downstream from Tepusqaet Creek and 3.5 miles southeast of 

Garey. Altitude of gage, about 450 feet.

Drainage area.- 442 square miles.

Hecorgg avaiiaBle.- February 1941 to September 1949.

SXtreme s;- waxlium discharge during year, 50 second-feet Mar. 11 (gage height, 3.48 feet); 

'no now during most pf year.

1941-49: Maximum discharge, 13,000 second-fee-t 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.

Hev'i'slo'ns (water years).- W 1011: 1941, 1943.

Discharge, In s<seond-feet, water year October 1948. to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

25

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

,02 

.2 

0 

0 

0 

0

Month

Octo 

Hove

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Jan, Feb.

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

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

0 

0 

.04 

.4 

.6

.1 

0 

0 

0 

0

7.0 

£9 

6.7 

0 

0

0 

0

0 

.8 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

Secondfoot -days

0 

0 

.22

.22

0 

0 

44.64 

0 

0 

Q 

0 

0 

0

44.86

May

Maximum

0 

0 

.2

.2

0 

0 

29 

0

0 

0 

0 ,

0 

0

29

June July

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.007

,0006

0 

0 

1,44 

0 

P 

0 

0 

0 

0

.123

Sept.

Runoff In 

acre-feet

0 

0 

.4

,4

0 

0 

89 

0 

0 

0 

0 

0 

0

89

La Brea Creek near Sisquoc, Calif.

Location.-T Water-stage recorder, lat. 34'51'00", long. 130*12'00". inSE|sec. 13. T. 

 9 N., K. 32 W., 2,100 feet upstream from mouth and 5.5 miles east of Sisquoc, banta

Barbara County. Altitude of gage, about 550 feet. 

Drainage area.- 86.7 square miles. 

Rec'ordB 'available. - October 1943 to September 1949.

OT9:i.«". 1-600 second-feet Feb. 22. 1944 (gage height 5.22 

feet) from rating curve extended above 114 second-feet by logarithmic plotting; no

. '1946. Perennial low flow from basin above sinks beneath 

r'e'am bed before reaching this station. No diversion.
SANTA MARIA RIVER BASIH 163

Tepusquet Creek near Sisquoc, Cal-lf.

Location.- Water-stage recorder, lat. 34°52'OS", long. 120°14 I 40", in NEi sec. 9, T. 9 

I\l., K. 32 to., 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 1949.

Extremes.- Maximum discharge during year, 5 second-feet Mar. 5 (gage height, 2.03 feet); 

no now Sept. 8.

1943-49: 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. Station operation resumed Dec. 9 after new bridge 

construction.

Discharge, In second-feet, water year October 1948 to September 1949

toy

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

18 

19

go

21 

82 

23 

24 

K

26 

27 

£8 

29 

30 

31

Oct.

0.1

Nov.

0.1

Dec.

0.1

.1 

.1

.1 

.2 

.2 

.2 

.2

.4 

.3 

.2 

.2 

.2

.2 

.2

;2

.2 

.2

.4 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

.3

.2 

.2 

.2 

.2 

.2

.2 

.2

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.2 

.2 

.2

Feb.

0.2 

.2 

.2 

.2 

.2

.3 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3 

.3

.2 

.2 

.2 

.3 

.3

.3 

.3 

.3

Month

Octo 

Hove

Dece

Ca

Janu 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Peak disch 

ft.; Mar-. 5 1 Note . > HO 

puted on basl 

ther records.

arge (base, 2 sec. -ft.).- Dec. 1

4 p.m.) 5 sec. -ft.; Mar. 19 (lo 

gage-height record Oct. 1 to De< 

s of discharge measurements mac

Mar.

0.2 

.2 

.5 

.5 

.5

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

.3 

.3 

.3 

.5 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3 

.3

Apr.

0.3 

3 

3 

.3 

,3

.3 

.5 

.5 

.5 

.5

.6 

.6 

.6 

.6 

.6

.7 

.8 

.8 

.8

.8

.8

.a

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

f££S£.

3.1 

3.0 

5.6

71.4

4.7 

7.7 

10.5 

18.-? 

25.6 

17.1 

9.0 

4.2 

2.9

112.1

nay

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.9

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

.8

.7 

.7 

.6 

.6 

.7

.8 

.8 

.8 

.8 

.8 

.8

Maxl-.U*

.4

.5

.3 

.4 

.5 

.8 

1.0 

.8 

.4 

.2 

.1

1.0

June

0.8 

.8

.7 

.7 

.7

.7 

.7 

.6 

.6 

.7

.7 

.7 

.7 

.6

.6

.5 

.5 

.5 

.5 

.4

.4 

.4 

.4 

.4 

.5

.5 

.5 

.5 

.4 

.4

July

0.4 

.4 

.4

.3 

.3

.3

.2 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

3 

.3 

.3 

.3 

,3

.3 

.3 

.2 

.2 

.2 

.2

Minimum

"

-

.1 

.2 

.2 

.3 

.6 

.4 

.2 

.1 

0

0

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.1 

.1

,1 

.1 

.2 

.2

.1

.1 

.1

,1 

,1 

.1

.1 

.1 

.2 

.1

.1

.1 

.1 

.1 

.1

.1 

.1

Mean

0.1 

.1 

.18

.20

.15 

.28 

.34 

.62 

.83 

.57 

.29 

.14 

.10

.31

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

0

.1 .1

.1.1 .1 .1 .1

.1 .1 .1 .1.1

.1 .1 .1 .1 .1

.1 .1.1 .1.1

Runoff In 

acre-feet

6.1 

6.0 

11

141

9.3 

15 

21 

37 

51 

34 

18 

8.3 

5.8

222

7 (3 a.m.) 3.2 sec. -ft. s Dec. 26 i5!30 p.m.) 2.3 sec.- 

30 a.m.) 2.8 sec. -ft. 

, . 9, Mar. 25 to Apr. 6; discharge Interpolated Or comle on Oct. 5, IS, Nov. 3, 22, Dec. 3> Nov. 28, and wea-
164 ARROYO GRANDE BASIN 

Arroyo Grande at Arroyo Grande, Calif.

Location.- Water-stage recorder and broad-crested weir, lat. 35°07'25", long. 120°34 I 20", 

in fismo Grant at Arroyo Grande, San Luis Obispo County, 0.25 mile upstream from 

Pacific Coast Railway bridge. Datum of gage is 97.8 feet above mean sea level, datum 

of 1929, supplementary adjustment of 1934..

Drainage area.- 106 square miles.

Records available.- Decembe-r 1939 to September 1949.

Extremes.- Maximum discharge during year, 346 second-feet Map. 3 (gage height, 3.10 feet); 

minimum daily, less than 0.1 second~fo,ot during several periods in'August and September.

11339-49: Maximum'discharge, 3,100 second-feet Mar. 4, 1941 (gage~height, 8.80 feet, 

datum then in use); minimum daily, less than 0.1 second-foot during several periods in 

August and" September 1949.

Remarks.- Records good. Many small and intermittent diversions by pumping from stream 

for"irrigation above station.

Revisions (water years).- W 931: 1940. W 1011! 1941, 1942(M).

Discharge, In second-feet, water year October 1948 to September 1949

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

SO 

31

Oct.

0.6 

.4 

.6 

.9 

.5

.5 

.5 

.4 

.4 

.6

1.0 

1.0 

.8 

1.2 

.6

.9 

1.5 

1.7 

1.9 

2.2

2.1 

2.0 

3.0 

3.0 

1.6

.7 

1.1 

2.2 

3.0 

2.3 

2.4

Nov.

2.0 

1.4 

1.5 

2.4 

1.5

.8 

1.2 

1.5 

1.0 

1.2

1.2 

1.8

1.9 

2.0 

2.2

2.2 

1.3 

1.2 

1.3 

1.2

1.3 

.9

1.0 

1.1 

1.9

1.3 

1.8 

2.2 

2.2 

1.4

Dec.

1.5 

1.6 

2.0 

2.4 

2.5

2.4 

1.6 

.9 

1.9 

2.0

1.9 

2.0 

2.3 

2.6 

2.5

3.1 

7.5 

5.6

5.2 

5.0

4.6 

5.0 

4.4 

4.2 

3.0

5.5 

7.4 

5.S 

5.2 

5.0 

4.6

Jan.

3.8 

2.8 

3.0 

4.0 

4.4

4.4 

4.4 

4.4 

3.8 

3.7

3.8 

3.5 

2.8 

2.9 

3.1

3.0 

2.7 

1.3 

3.0 

5.0

4.8 

5.4 

5.2 

4.8

5.0

5.4 

5.4 

5.2 

5.2 

5.0 

4.8

Feb.

4.4 

4.8 

5.2 

5.0 

5.4

5.6 

7.8 

5.6 

5.4 

5.4

5.8 

5.8 

5.8 

5.8 

5.6

5.6 

5.6 

5.2 

5.0 

4.0

4.0 

4.4 

3.6 

4.9 

6.9

7.6 

7.6 

7.4

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

M»v

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

Mar.

7.2 

6.9 

21 

17 

11

9.1 

8.9 

8.4 

8.4 

8.4

8.6 

8.9 

8.4 

8.4 

8.6

8.6 

8.6 

8.6 

12 

9.8

9.1 

9.3 

9.6 

9.6 

9.6

9.8 

10 

10 

10 

10 

11

Apr.

11 

12 

11

10 

10

9.6 

9.0 

7.9 

7.9 

7.2

7.8 

6.0 

7.4 

7.9 

9.6

8.5 

11 

11 

10 

11

9.5 

8.5 

6.7 

7.6 

7.4

6.3 

7.4 

6.0 

7.3 

7.4

Secondfoot-days

41.6 

45.9 

111.2

877.2

126.0 

155.2 

304.8 

259.9 

198.1 

79.9 

23.3 

3.72 

8.77

1,358.39

May

7.2 

5.2 

5.8 

5.6 

4.5

3.1 

2.6 

4.9 

4.9 

4.1

4.6

5.6 

5.6 

8.1 

7.9

8.4 

9.1 

11 

12 

11

11

8.9 

7.6 

6.8 

5.0

4.0 

3.8 

3.5 

5.4 

5.1 

5.8

Maximum

3.0 

2.4 

7.5

7.5

5.4 

7.8 

21 

12 

12 

5.5 

1.7 

.8 

1.2

21

June

5.5 

5.2 

3.4 

3.4 

2.3

1.9 

2.3 

3.2 

4.3 

3.2

2.8 

3.6 

3.2 

3.3

3.5

3.4 

3.0 

4.4 

3.6 

3.4

2.1 

1.6 

1.4 

1.2 

1.0

.8 

.8 

.7 

.4 

1.0

July

1.0 

1.6 

1.6 

1.7 

1.2

.9 

1.4 

.9 

.8 

1.3

1.3 

.9 

.3 

,2 

.4

.7 

.7 

.8 

.7 

.2

.4 

.2 

.1 

.4 

.7

.4 

.1 

.5- 

.8 

.4 

.7

Minimum

0.4 

.8 

.9

.1

1.3 

3.6 

6.9 

6.0 

2.6 

.4 

.1

-

Aug.

0.4 

.3 

.3 

.8

.5-

.1 

.2 

.2 

.3 

.02

.2 

, e.02

Mean

1.34 

1.53 

3.59

2.40

4.06 

5.54 

9.83 

8.66 

6.39 

2,66 

.75 

.120 

.292

3.72

Sept.

jeO.O!

.5 

.1

.2 

.1

e.O]

.1 

.2 

.1 

.3 

.2

.2 

.4 

.7 

.4 

1.0 .

1.2 

1.1 

1.1 

.6

.1

Runoff In 

acre-feet

82 

91 

221

1,740

250 

308 

605 

516 

393 

158 

46 

7.4 

17

2,690

Peak discharge (base, 40 aec.-ft.).- Mar. 3 (8:20 a.m.) 346 aec.-ft.

e Daily discharge lesa than 6.1 aec.-ft.
SAUNAS RIVER BASIN

Salinas River near Pozo, Calif.

165

Location.- Water-stage recorder, lat. 35°18', long. 120°24', in SE£ sec. 18, T. 30 S., R. 

15 K., 1.5 miles downstream from Pozcc Creek, 1.7 nines' west of Pozo, and 7 mi],es 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 1949.

Extremes.- Maximum discharge during year, 347 second-feet Mar. 4 (gage height, 5.77 feet); 

minimum dally, 0.1 second-foot at various times in October and September.

1942-49: 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. 

Salinas Reservoir below station.

Water is stored in

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

8

9 -10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

E6 

27 

28 

29 

30 

31

Oct.

0.1 

.2 

.1 

.1 

.1

.1

.1 

.2 

.1

.2

.2 

.2

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.3 

.3 

.4 

.4

Nov.

0.3 

.5 

.5 

.5 

.4

.5

.4

.4 

.4

.4

.4 

.5

.6

Dec.

0.7 

.7 

1.1 

1.1 

.9

.7

.9 

.7

.6

.6

.9 

,7

1.6 

9.6 

1.9 

1.3 

1.1

.9 

.9 

.9 

.9 

.9

11 

6.6 

2.2 

1.9 

1.6 

1.6

Jan.

1.1 

1.1 

1,1 

.9 

.9

.9

1.1 

1.1 

1.1

1.1

1.1 

1.1

.9 

.9 

.9

1.3 

1.6

1.1 

1.9 

1.6 

1.3 

1.1

1.1 

1.1 

1.1 

1.1 

1.1 

1.1

Feb.

1.1 

1.1 

1.6 

1.1 

1.1

.9

1.1 

.9 

.9

1.3

1.3 

1.3

1.3 

1.3 

1.3 

1.3 

1.1

1.1 

1,1 

1.1 

2.5 

1.6

5.8 

8.9 

4.5

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 ,.......,...,,.......,.

Peak discharge (base, 100 sec. -ft.).- Mar.

a No gage-height record; discharge interpo

Mar.

2.9 

3.7 

75 

257 

101

40 

20 

12 

8.9

47

140 

94 

48 

31 

21

14 

11 

7.6 

28 50

29 

22 

26 

24 

18

15 

13 

12 

9.5

8.2 

7.6

Apr.

6 

5 

5 

4 

4

4 

3 

3 

3 

2

2 

2 

2 

2 

2

2 

3 

3 

2 

2

1 

1 

1 

1 

1

1 

1 

1 

1 

1

fSys

5.8 

16.6 

56.6

404.3

35.1 

50.7 

1,196.4 

91.7 

55.6 

31.1 

12.7 

11.1 

6,1

1,569.5

4 (5 a.m.) 

lated.

.0 

.5 

.5 

.5

.1

.7 

.3 

.9

.9 

.9

,9 

.9 

.9

.9 

.3 

.3 

.9 

.5

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

May

1.9 

1.9 

1.9 

1.6

1.6

1.6 

1.6 

1.9

1.9 

1,9 

1.9 

1.9 

1.9

1.9

1.9 

2.2 

2.5 

2.2

2.2 

1.9 

1,9 

1.6 

1.6

1.6 

1.3 

1.6 

1.6 

1.6 

1.3

Maximum

0.4 

.9 

11

31

1.9 

8.9 

257 

6,0 

2.5 

1.6 

.9 

.5 

.3

257

June

'1.3 

1.3 

1.1 

1.1

1.1

1.1 

1.1 

1.1

1.1 

1.1 

1,1 

1.1 

1.1

1.1 

1.1 

1.6 

1.3 

1.1

.9 

,7 

.7 

.7 

.7

.7 

.9 

.9 

.9 

.9

July

0.9 

.7 

.7 

.7

.7

.6 

.6 

.6

.5 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

a. 2 

a. 2 

a. 3

Minimum

0.1 

.3 

.6

.1

.9 

.9 

2.9 

1.9 

1.3 

.7 

.2 

.3 

.1

.1

Aug.

0,3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4 

.5

.5 

.5 

- .5 

.5 

.5

.5 

.4 

.4 

,3 

.3

.3 

.3 

.3 

.4 

.3

.3 

.3 

.3 

.3 

.3 

.3

Mean

0.19 

.55 

1.83

1.10

1.13 

1.81 

38.6 

3.06 

1.79 

1.04 

.41 

.36 

.20

4.30

Sept.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

,1 

.1 

.1 

.1

,1 

.2 

.2 

.2 

.2

Runoff in 

acre-feet

12 

33

112

803

70 

101 

2,370 

182 

110 

62 

25 

22 

12

3,110

347 sec. -ft. j Mar. 10 (10 p.m.) 225 sec. -ft.

947809 O - 51 - 12
166 SAUNAS RIVER BASIN 

Salinas Reservoir near Pozo, Calif.

Location.' Water-stage recorder, lat. 35°20', long. 130°30', In see 5 T 30 S R 14 

E -- at dam on Sallnas River, 2 miles upstream from Pilitas Creek and 7,5 miles northwest 

of Pozo. Datum of gage Is at mean sea level (levels by Corps of Engineers).' Drainage area.- Ill square miles.

ftecora available.- December 1941 to September 1949.

, l -.: gH!;*1!!!'a? contents during year, 8,460 acre-feet Apr. 9-21; maximum elevation, 

746 feet Apr. 12, 17, 18; minimum eontepts, 5,080 acre-feet Dec. 24, 25. 

1941-49: Maximum contents, 24,120 acre-feet Mar. 19, 1945 (elevation, 1,298.45 

feet); minimum, 1,730 acre-feet Nov. 6-10, 1943.

Remarks.- Reservoir is formed by concrete-arch dam; outlet closed Dec. 6, 1941. Usable 

SlWcity 26,000 acre-feet between elevations 1,820.3 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 la pumped to Camp San Luls Qbiapo 

and city of San Luis Obispo for water supply; water is also released down natural 

channel of river. Records show usable contents at 12 p.m. The county of San Luls 

Obispo has furnished the following.record of diversions for 1948-49-

Month

Water year 1948-49 . .

Diversion In 

acre-feet

2,499

Contents, In acre-feet, water year October 1949 to September 1949

Das

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

29

30

51

Dot,

5,660

5,670

5.66O

5,650

5,640

5,630

5,620

5,600

5/600

5,590

5,580

5,57O

5,580

5,560

5,550

5,540

5,530

5,530

5,520

5,510

5,510

5,500

5,490

5,480

5,470

5,460

5,450

5,440

5,430

5,420

5,410

Kov.

5,410

5,400

5,390

5,380

5,370

5,360

5,350

5,340

5,330

5,380

5,310

5,310

5,300

5,290

5,380

5,270

5,860

5,260

5,250

5,240

5,230

5,230

5,220

5,210

5,2,00

5,190

5,180

5,180

5,170

5,160

Dec.

5,160

5,150

5,150

5,140

5,130

5,130

5,120

5,120

5,120

5,110

5,110

5,100

5,100

5,090

5,Q90

5,100

5,120

5,110

5,110

5,110

5,100

5,080

5,090

5,080

5,080

5,140

5,180

5,180

5,180

5,180

5,180

Jan.

5,180

5,180

5,180

5,180

5,170

5,17Q

5,160

5,160

5,160

5,150

5,150

5,150

5,140

5,140

5,130

5,130

5,130

5,120

5,150

5,150

5,150

5,170

5,180

5,180

5,180

5,170

5,170

5,170

5,170

5,160

5,160

Feb.

5,160

5,160

5,170

5,170

5,170

5,170

5,200

5,200

5,200

5,200

5,300

5,200

5,200

5,200

5,200

5,200

5,200

5,200

5,200

5,190

5,180

5,180

5,180

5,220

5,230

5,270

5,290

5,290

_

-

Her.

5,300

5,320

5,660

6,250

6,470

6,570

6,630

6,670

6,710

6.90O

7,240

7,45p

7,570

7,660

7,720

7,770

8,160

7,830

7,920

8,030

8,090

8,150

8,200

8,250

8,280

8,380

8,340

9,360

8,380

8,390

8,400

Apr.

8,410

8,430

6,440

8,440

8,450

8,450

8,450

8,450

8,460

8,460

8,460

6,460

8,460

8,460

8,460

8,480

8,460

8,460

8,460

8,460

8,460

8,450

8,450

8,440

8,430

8,480

8,420

8,400

8,400

8,390

-

Hay

6,370

8,360

8,360

8,350

8,340

8,330

8,310

8,300

8,290

8,280

8,270

8,260

6,250

8,250

8,250

8,240

8,240

8,240

8,250

8,250

8,240

8,230

8,230

8,220

8,210

8,190

8,180

8,160

8,150

8,140

8,120

June

8,110

8,100

8,090

8,070

8,060

8,040

8,020

8,010

7,990

7,980

7,960

7,940

7,920

7,920

7,900

7,880

7,870

7,850

7,840

7,830

7,820

7,810

7,790

7,780

7,760

7,74O

7,720

7,700

7,690

7,670

-

July

7,660

7,640

7,620

7,600

7,590

7,570

7,550

7,540

7,530

7,510

7,480

7,460

7,440

7,420

7,400

7,380

7,370

7,340

7,380

7,300

7,280

7,260

7,240

7,220

7,200

7,190

7,170

7,150

7,140

7,120

7,110

Aug.

7,090

7,080

7,060

7,040

7,020

6,990

6,990

6,960

6,940

6,920

6,900

6,890

6,»70

6,850

6,840

6,820

6,800

6,800

6,780

6,770

6,760

6,740

6,720

6,710

6,690

6,680

6,670

6,550

6,640

6,680

6,610

Sept.

6,590

6,580

6,860

6,550

6,530

6,520

6,510

6,500

6,480

6,460

6,450

6,430

6,410

6,400

6,590

6,37O

6,360

6,350

6,340

6,320

6,310

6,300

6,290

6,260

6,250

6,230

6,880

8,210

6,200

6,180

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec . 31 .....................

Calendar year 1948. .......

Feb. 28.. ...................

Sept. 30. ....................

Water year 1948-49. .......

Elevation 

(feet)t

1,259.23

-

1,262,61

Contents 

(acre-feet)

5, 690

5,180

-

6,180

-

Change In contents 

during month 

(acre-feet) "

+20

-2,280

JCrt

-430

+490

t Elevation at 12 p.m.
SALINAS RIVER BASIN ' 167

Sallnas River above Pllltas Creek, near Santa Margarita, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°21', long. 120*31", In NE£ 

sec."e, T. 30 S., R. 14 K., Immediately upstream from Pllitas Creek and 6 miles southeast of Santa Margarita. Altitude of gage, about 1,150 feet, unadjusted.

Drainage area." 125 square miles.

Records..available.- July 1942 to September 1949-.

Extremes.- Maximum discharge daring year, 9.9 Second-feet Mar. 3 (gage height, 0.85 foot); 

no I'low for several months.

1942-49: Maximum discharge, 562 second-feet Jan. 28, 1943 (gage height, 2.49 feet); 

no flow at times during 1944, 1947-49.

Remarks.- Records good. Plow regulated by Salinas Reservoir beginning In 1941 (see preceding page). Small amount of water diverted to Camp San Lulfc Oblspo and city of San 

Luls Oblspo.

Rating table, water year 1948-49 (gags height, in feet, 

and discharge, In second-feet)

0.4 0 

.5 .2 

.6 1.1 

.7 3.3

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

3 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

EO

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

OctO 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Apri 

Hay

June 

July 

Augu 

Sept

Wa

Ho.V. Dec.

0 

0 

0 

O 

0

O

0 

0 

0

o 

0

.1 .1 

a

a

.2 

.9 

.2

a

a

a 

a 

a 

a 

a

1.3 

1.3 

.6 

.4 

.3 

.3

Jan.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.5 

.8

.3 

.7 

.5 

.3 

.3

.2 

.2 

.2 

.2 

.2 

.2

Feb.

O.3 

.2 

.3 

.3 

.3

.3

.9 

.4 

.3 

.3

.8 

.3 

.2

.2 

.2

.2 

.3 

.2

a 

a

.2 

.3 

.2 

.5 

.3

.4 

.3 

.2

Month

lendar year 1946 

Eiry

ter year 1948-49 ................... i ...

Mar.

0.2 

.3 

2.1 

3.0 

.9

.6

.4 

.3 

.3

1.4

2.2 

1.4

.9 

.6

.5

.4 

.3 

.3

.9 

.7

.5 

.4

.7 

.5

.4

.3 

.3

i2 

.2 

.2 

.3

Apr.

0.2 

.2 

.2 

.2 

.2

.2

a 

a

a 

a

a 

a 

a 

a 

a

a 

a 

a 

a

a

a 

a 

a 

a 

a

a 

a

o'

0

nay

oa

0

0

a 

a

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0

0 

0 

0 

0

0 

0 

0

o 

0 

0

foot-days Second- llairllm.m «a*i|»«'»

0 0 

0 0 

6.6 1.3

34.5 1.8

6.2 .6 

8.6 .9 

21.7 3.0 

3.4 .2 

.3 .1 

0 0 

0 0 

0 0 

0 0

48.8 3.0

June

1

Minimum

July

0 

0 

0

0

.2

a

.2

0 

0 

0 

0 

0

o

0

Aug. Sept.

 , Runoff In 

lwan acre-feet

0 0 

0 0 

.21 13

,09~ 68

.26 16 

.31 17 

.70 43 

ai 6.7 

.01 .6 

0 0 

0 0 

0 0 

0 0

.13 96
168 SALINAS RIVER 'BASIN

Salinas River near Santa Margarita, Calif.

Location.- Water-stage recorder, lat. 35°24'20", long. 120°34 I 05", in Ni sec. 15, T. 29 

s.', ri. 13 E., 250 feet downstream from Calf Canyon highway bridge, 250 feet upstream 

from Morano Creek, and 2.5 miles northeast of Santa Margarita. Datum of gage is 959.41 

feet above mean sea level, datura of 1929.

Drainage area.- 148 square miles.

Records .available.- April to September 1922, February 1932 to September 1949 (discontinued).

Average discharge.- 17 years (1932-49), 41.7 second-feet.

Extremes.- Maximum- discharge during year, 548 second-feet Mar. 4 (gage height,-7.90 feet); 

ndTTow during several months.

1932-49: Maximum discharge, 11,000 second-feet Feb. 11, 1938 (gage height, 17.0 

feet), from rating curve extended above 3,000 second-feet on basis of velocity-area 

studies; no flow during several months of each year except 1942-46.

Remarks.- Records fair. Plow regulated by Salinas Reservoir beginning in 1941 (see p.166). 

Small amount of water diverted to Camp San Luis Obispo and city of San Luis Obispo.

Revisions (water years).- W 901; Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

B 

9

10

11 

12 

13 

14 

15

IS 

17 

18 

19 

20

21 

22 

23 

24 

25

25 

27 

28 

29 

30 

31

Oct. Nov. Dec.

4

Month

Octo 

Nove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Jan. Feb.

0 

0 

0 

0 

0

0 

3.1 

2.5 

.5 

.4

.4 

.7 

.5 

.3 

.3

.4 

.4 

.5 

.7 

.4

.4 

.5 

.7 

1.5 

4.6

2.8 

5.0 

2.8

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

1.5 

1.4 

50 

156 

26

9.7 

5.8 

4.2 

3.2 

20

65 

45 

16 

9.4 

6.4

5.6 

4.4 

3.6 

12 

13

6.4 

5.4 

9.1 

6.0 

4.8

3.8 

3.5 

3.4 

2.8 

2.4 

2.4

Apr.

2.3 

2.2 

2.0 

1.9 

1.8

1.6 

1.5 

1.4 

1.4 

1.3

1.3 

1.0 

1.0 

1.0 

1.0

1.0 

1.1 

1.3 

1.1 

.9

- .9 

.8 

.8 

.6 

.6

.5 

.5 

.5 

.5 

.5

Secondfoot -days

0 

0 

0

171.8

0 

29.4 

508.2 

34.3 

12.7 

0 

0 

0 

0

584.6

May

0.5 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.5 

.6

.7 

.7 

.B 

1.0 

1.0

.6 

.4 

.3 

.2 

.5

.5 

.1 

0 

0 

0 

0

Maximum

0 

0 

0

36

0 

5.0 

156 

2.3 

1.0 

0 

0 

0 

0

156

June

Minimum

July

0 

0 

0

0

0

0 

1.4 

.5 

0 

0 

0 

0 

0

0

AUg.

Mean

0 

0 

0

.47

0 

1.05 

16.4 

1.14 

.41 

0 

0 

0 

0

1.60

Sept.

Runoff In 

aore-feet

0 

0 

0

341

0

58 

1,010 

68 

25 

0 

0 

0 

0

1,160
SALINAS RIVER BASIN 

Salinas River at 'Paso Robles, Calif.

169

Location.- Wire-weight gage, lat. 35°37'40", long.' 120°4l'05'" , at bridge on State Highway 44. 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 1949.

Average discharge.- 10 years, ISO second-feet.

Extremes.- Maximum discharge observed during year, 4,650 second-feet Mar. 4 (gage height, 

11.3 reet) ; no flow during several months.

1939-49: Maximum discharge, 14,200 second-feet Mar. 9, 1943 (gage height, 16.3 

feet), from rating curve extended above 6,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow duping 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 diversion above station, 

regulated by Salinas Reservoir beginning in 1941 (see p. 166).

Plow

Day

1

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Discharge, in second-feet, water year October 1948 to September 1949

Oct. Nov. Dec. Jan,

Month

Octo 

Nove 

Dece

ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Feb.

0 

O 

0 

0 

0

0 

24 

58 

29 

23

11 

0 

O 

0 

0

0 

0

o

0 

0

0

0 

6.7 

6.7 

37

48 

91 

68

lendar year 1948

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

ter year 1948-49 .......................

Mar.

52 

45 

119 

1,300 

433

293 

226 

181 

168 

154

275 

377 

317 

248 

210

188 

163 

142 

132 

128

142 

142 

130 

128 

122

111 

104 

96 

86 

79 

76

Apr.

63 

52 

48 

45 

42

44 

44 

41 

38 

34

34

33 

32 

31 

29

28

27 

28 

28 

26

24 

19 

15 

15 

10

9.0 

8.4 

7.8 

7.8

5.3

Secondfoot-days

0 

0 

0

3,818.6

O 

402.4 

6,365 

873.3 

35.5 

0 

0 

0 

0

7,676.2

May

3.4 

3.4 

2.2

1.6

1.8

O " O 

0 

0 

0

0 

0

1.1

2.2 

2.2

2.5 

2.8 

2.8 

2,2 2.2'

2.2 

1.6 

.9 

.3

.1

0 

O 

O 

0 

0 

0

Maximum

0

0

0

1,430

0 

91 

1,300 

68 

3.4 

0 

0 

0 

0

1,300

June

k

Minimum

July

0 

0 

0

0

0 

0 

45 

5.3 

0 

O 

0 

0 

0

0

Aug.

Mean

0 

0 

O

10.4

0 

14.4 

205 

29.1 

1.15 

0 

0 

0 

0

21.0

Sept.

Runoff In 

acre-feet

0 

0 

0

7,570

0 

798 

12,620 

1,730 

70 

0 

0 

0 

0

15,220

Peak discharge (base, 1,100 sec.-ft.).- Mar. 4 (4 a.m.) 4,650 sec.-ft.
170 SAUNAS RIVER BASIN

Salinas River near Bradley, Calif.

Location.- Water-stage recorder, lat. 35«55'40", long, 12Q°53 I 00",, in NE£ sec. IS, T. 23 

3., K. 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 1949.

Extremes.- Maximum discharge during year, 15,200 second-feet Mar. 3 (gage height, 10.79 

reet); minimum, 0,9 second-foot Sept, 21-24.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

Which are fair.

Discharge, In second-feet, water year October 19*8 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

hll 

all

all 

all 

all 

all 

all

all 

hll 

alo 

h9.7 

his

h21 

h268 

h257 

h219 

h!58 

alOO

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Ma v

June 

July 

Augu 

Sept

Th

Jan.

a70 

852 

h48 

h45 

h42

h39 

a36 

a32 

a29 

h28

h28 

h23 

h23 

h21 

18

18 

17 

16 

24 

628

762 

372 

533 

386 

270

202 

157 

129 

allO 

a95 

880

Feb.

875 

72 

82 

84 

129

146 

549 

1,150 

624 

431

328 

316 

292 

218 

183

164 

157 

146 

143 

129

116 

100 

100 

129 

586

540 

680 

603

her, ....................................

mber 14- 

lendar y

31, .. -----

ear

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

e period. ...............................

Mar.

457 

340 

4,970 

8,660 

3,540

2,310 

1,620 

1,230 

984 

926

4,940 

3,280 

2,400 

1,790 

1,350

1,660 

1,040 

901 

842 

1,450

1,230 

dl,200 

dl,l50 

dl.100 

dl.OOO

d900 

dSOO 

d750 

d680 

d620 

d550

Apr.

d480 

d420 

d370 

d340 

4310

291 

263 

241 

220 

216

201 

192 

178 

d!70 

d!60

d!50 

d!40 

d!30 

dl25 

d!20

dU5 

dllO 

d!05 

dlOO

d95

d90 

d90 

87 

87 

84

Secondfoot-slays

1,157.7

-

4,333 

8,272 

54,670 

9,680 

1,263 

236,5 

72.3 

62.8 

55.. 7

-

Peak discharge (base, 4,000 sec. -ft.).- Mar. 3 (9 p.m.

Way

80 

76 

72 

66 

60

57 

51 

50 

50 

46

43 

41 

38 

38 

36

36 

38 

36 

36 

38

36 

33 

30 

?9 

26

25 

23 

20 

19

18 

16

Maximum

268

-

762 

1,150 

8,660 

480 

80 

16 

3.4 

2.8 

2.8

-

) 15,200 sec

June

16 

15

13 

13 

11

11 

10 

10 

9.7 

9.1

8.5 

7.9

7.9 

7.4 

6.9

6.4 

5.9 

7.4 

7.4 

6.4

5.9 

5.9 

4.6 

4.6 

4.6

4.6 

4.2 

4.2 

4.2 

3.8

Minimum

July

3.4 

3.4 

33.2 

d3.2 

d3.0

d3.0 

d3.0 

2,8 

2.5 

2.3

2.3 

2.3 

2.0 

2.0

1.8

1.6 

1.4 

1.4 

1.4 

1.4

1.6 

1.8 

1.8 

2.3 

2.3

2.3 

~ 2,5 

2.8 

2.5 

2,5 

2.5

9.7

-

16 

72 

340 

84 

16 

3.8 

1.4 

1.2 

.9

-

.-ft,; Mar

Me

Aug.

2.3 

2.0

1.6 

1.6 

1.4

1.2 

1.4 

1.6 

2.0 

2.3

2.8 

2.8 

2.5 

2.5

2.5

2.5 

2.3 

2.3 

2.0

i.8

1.8 i.e

1.8 

2.0 

2.0

2.0 

2.3 

2.3 

2.0

1.8 

1.6

an

64.3

-

140 

295 

1,764 

189 

40.7 

7.88 

2.33 

2.03 

1.86

,

Sept.

1.8 

1.8 

1.8 

2.0 

2.3

2.3 

2.0

1,8 

1.6 

1.8

2.3 

2.5 

2.8 

2.5 

2.3

2.0 

1.8 

1.4

1.2 

1.1

.9 

.9 

.9 

.9

1.1

1.8 

2.5 

2.8 

2.5 

2.3

Runoff In 

acre-feet

2,300

-

8,590 

16,410 

108,400 

11,270 

2,310 

469 

143 

125 

110

150,300

11 (10 a.m.) 6,990

sec.-ft.

a No gage-height record; discharge interpolated, or computed on basis of upstream records, 

d Gage-height doubtful; discharge computed on basis of upstream records, 

h Computed from staff-gage reading.
SALINAS RIVER BASIN 171

Salinas River near Spreckels, Calif.

tooation.- Water-stage recorder and wire-weight gage, lat. 36°37'50", long. 121*40'4Q", 

in El Toro Grant, at bridge on Salinas-Monterey highway, 0.5 mile upstream from Toro 

Creek, 2 miles west of Spreckels, Morlterey 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 1949.

Average discharge.*- 19 years,(1930-49),. 566 second-feet.

Extremes.- Maximum discharge during year, 5,540 second-feet Mar. 5 (gage height, IS.8 

reetj from floodmark); minimum observed, 0.3 second-foot Oct. 4, 5, 7, 10, "June 6.

1929-49: 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 gageRemarks.- Records fair below 500 second-feet, poor above, 

station for irrigation.

Many small diversions above

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

ii

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.5 

.6 

.4 

.3 

.3

.4 

.3 

.4 

.4 

.3

.5 

.6 

.6 

.7 

.9

1.1 

2.1 

2.8 

3.2 

3.5

.5

.5 

.3 

.6 

.9

4.9 

5.0 

5.0 

5.4 

5.6 

5.8

Nov.

5.9 

6.3 

6.3 

7.4

7.7

7.9 

7.4 

7.4 

7.7 

7.9

7.7 

7.7 

7.4 

7.7 

7.9

7.9 

7.7 

7.9 

8.1 

8.1

8.4 

8.4 

8.1

8.4 

8.6

8.4 

8.6 

9.5 

8.9 

8.4

Dec.

8.4

8.1 

7.7 

7.4

7.2

7.4 

7.4 

7.2 

6.8 

6.8

6.5 

6.3 

6.2 

6.5 

6.5

6.5 

6.5 

6.3 

5.9 

5.4

5.0 

4.8 

4.6 

4.5 

4.6

4.5 

4.6 

4.4 

3.9 

3.8 

3.7

Month

Octo 

Hove 

Dece

ca

Janu 

Febr 

Marc 

Apr!

ttav

June 

July 

Augu 

Sept

Wa

Jan.

3.5 

3.3 

3.2 

3.2 

3.1

'3.4

3.3 

3.2 

2.7 

2.3

2.4 

2.7 

Z.4 

2.3 

2.2

2.1 

2.0 

2.1 

2.0 

2.1

2.4 

Z.3 

2.6 

2.7 

2.4

2.9 

2.7 

2.6 

2.4 

2.3 

2.1

Feb.

2.3 

2.4 

2.4 

2.3 

2.2

2.3 

2.4 

2.5 

2.4

2.2

2.1 

2.1 

2.0 

2.2 

2.3

2.4 

2.S 

2.4 

2.2 

2.0

1.9 

2.0 

1.9 

1.8 

1.9

1.8 

1.7 

1.8

lendar year 1948 

al*y

ter year 1948-49 .......................

Peak discharge (base, 270 Sec. -ft. ,- Mar.

Mar.

1.7 

1.6 

3.3 

1,240 

4,090

2,000 

1,220 

818 

486 

306

630 

1,610 

2,810 

1,820 

1,260

887 

636 

473 

412 

335

372 

552 

564 

430 

322

284 

230 

185 

153 

134 

108

Apr.

83 

SI41 

33 

17

11 

9.8 

8.4 

7.2 

6.2

5.6

Secondfoot -day s

74.4 

235.7 

185.4

822.9

80.9 

60.4 

24,373.6 

343.2 

44.2 

22.0 

21.3 

28.5 

29.8

25,499.4

5 (about 1

4.9

4.3

4.3 

3.7 

3.6 

3.5 

2.8

2.9 

2.8 

2:5 

2.4 

2.2

2.0 

2.0 

2.1 

2.1 

2.0

May

1.9 

2.0 

1.8 

1.6 

1.8

1.6 

1.7 

1.8 

1.6 

1.5

1.4

1.5

1.6

1.4 

1.2 

1.1 

1.4 

1.3

1.3 

1.3 

1.1 

1.1 

1.1

1.0

1.1 

1.3 

1.2 

1.4 

1.2

Maximum

5.8 

9.5 

8.4

9.5

3.5 

2.3 

4,090 

33 

2.0 

1.3 

1.0 

1.2 

1.2

4,090

June

1.2 

1.1 

.8 

.6 

.5

.3 

.5 

.6 

.8 

.9

.9

1.2

1.3

1.1 

.9 

.8 

.6 

.4

.6 

.5 

.4 

.6 

.4

.6 

.6 

.5 

.6 

.5

July

0.4 

.6 

.5 

.4 

.6

.6 

.6 

.7 

.8 

.6

.7

.6

,8

.6 

.8 

.6 

.6 

.8

.7 

.8 

.7 

.8 

.6

.7 

.8 

.9 

.8 

.9 

1.0

Minimum

0.3 

5.9 

3.7

-

2.0 

1.7 

1.6 

2.0 

1.0 

.3 

,4 

.7 

.8

.3

Aug.

0.8 

.7 

1.2 

.9

.8

1.0 

1.0 

1.2 

1.0 

.8

.7

1.0 

.9 

.7

.7 

1.0 

.8 

.7 

.9

.9 

1.1 

.9 

1.1 

.8

1.0 

1.0 

.9 

1.1 

.8 

1.1

Mean

2.40 

7.86 

5.98

2.25

2.61 

2.16 

786 

11.4 

1.43 

, .73 

.69 

.92 

.99

69.9

Sept.

1.0 

.8 

.9 

.9

1.1

1.0 

1.0 

.9 

1.0 

1.1

1.2

1.1 

1.0 

1.1

1.0 

.9

1.0 

.9 

1.0

1.0 

.9 

1.0 

1.1 

.9

1.6

.9 

1.0 

1.0 

1.0

Runoff in 

acre-feet

148 

468 

368

1,630

160 

120 

48,340 

681 

88 

44 

42 

57 

59

50,580

a.m.) 5,540 sec. -ft.; Mar. 13 (about 6 a.m.)
172 SALINAS RIVER BASIN 

Toro Creek near Pozo, Calif.

Location.- Water-stage recorder and 90° V-notch weir, lat. 35°20', long. 120°25<, in 

 sed'.' 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 1949 (low-water records only).

Extremes.- Minimum discharge during period June to November 1949, 0.03 second-foot 

Sept. 17-22.

1942-49: Minimum discharge, 0.02 second-foot Sept. 10, 11, 1948.

Remarks.- Records good. Plow partly regulated-at swimming pool above station..

Discharge, In second-feet, June to November 1949

' Day

1

E

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

June

.

-

-

-

-

.

0.09

.07

.10

.10

.08

.07

.08

.09

.06

.06

.12

.13

.12

.12

.11

.10

.05

.09

a. 08

a. 08

.07

.07

.09

.08

-

July

O.'ll

.07

.06

.05

.05

.06

.05

.05

.05

.07

.05

.05

.05

.05

.05

.05

.04

.04

.04

.04

.04

.04

.04

.04

.05

.05

.04

,05

.05

.05

.05

Month

June 7-30. .................................. 

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

Augus^t. ....................................

Septettfcer. ..................................

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

November 1-6. ................................

The period. ...............................

Aug.

0.05

.04

.04

.04

.04

.04

.04

.04

.04

.05

.05

.04

.05

.05

.05

.05

.05

.04

.04

.04

.04

.05

.05

.05

.04

.04

.05

.05

.05

.05

.06

Sept.

0.09

.07

.05

.05

.08

.09

.09

.05

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.03

.03

.04

.04

.05

.05

.05

.04

.04

.05

-

Dot.

0.05

.06

.06

.06

.05

.06

.07

.07

.08

.09

.08

.07

.06

.05

.06

.06

.06

.06

.09

.10

.11

.11

.12

.13

.11

.07

.11

.11

.11

.12

.11

Second- Maximum

2.13 0.13 

1.58 .11

1.41 .06

1.43 .09

2.55 .13 

.69 .12

-

Nov.

0.11

.11

.12

.12

.11

.12

_

_

.

-

_

_

4.

__

-

__

_

_

"

__

-

_

_

"

_

_

__

-

-

*

Minimum

0.05 

.04

.04

.03

.05

.11

-

Mean

0.089 

.051

.045

.048

- .082 

.115

-

Runoff In 

acre-feet

4.22 

3.13

£ . 80

2.84

5.06 

1.37

19.4

a No gage-height record} discharge Interpolated.
SAUNAS RIVER BASIN 173

Nacimiento River near San Miguel, Calif.

Location.- Water-stage recorder and concrete control, lat. 3S°4V'00", long. 120°47'24", 

in SE't see. 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 1949.

Average discharge.- 10 years, 294 second-feet.

Extremes.- Maximum discharge during year, 34,700 second-feet Mar. 3 (gage height, 9.24 

reet), from rating curve extended above 4,300 second-feet on basi,s of slope-area determination; no flow Oct. 1 to Dec. 24, June 21 to Sept. 30.

1939-49: Maximum, discharge, 50,800 second-feet Jan. 21, 1943 (gage height, 10.45 

feet), from rating curve extended above 17,000 second-feet by logarithmic plotting; no 

flow for several months in each year except possibly 1942-44.

Remarks,.- Records fair. No storage or large diversion.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

IS 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

S4 

25

26 

27 

28 

29 

30 

31

Oct.

-

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

ao 

aO 

aO 

aO 

al

a4 

8700 

allO 

a80

aso

a35

Jan.

a25 

a20 

a!6 

13 

11

10 

9.7 

8.9 

8.2 

7.6

7.6 

6.3 

6.3 

5.3 

4.9

4.2 

4.2 

4.2 

6.3 

1,300

380 

320

396 

207 

138

92 

74 

60 

51 

44 

40

Feb.

36 

34 

36 

79 

88

112 

1,540 

960 

425 

274

234 

274 

193 

150 

127

112

102 

92 

82 

77

68 

63 

60 

325 

1,280

705 

980 

429

Month

Octo 

Nove 

Deee

Ca

Janu. 

Pebp 

Mare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 9,600 see. -ft.).- Ma

a No gage-height record; discharge compute 

Salinas River near Bradley.

Mar.

294 

357 

13,300 

5,550 

1,700

1,120 

760 

553 

418 

1,280

4,320 

1,700 

1,140 

850 

660

620 

535 

405 

634 

1,090

6 SO 

544 

553 

481 

400

344 

300 

268 

239 

207 

198

Apr.

180 

162 

154 

142 

135

119 

112 

105 

102 

99

92 

85 

79 

74 

71

68 

68 

65 

63 

60

57 

53 

51 

49 

' . 46

44 

42 

40 

36 

36

Secpndfoot-days

0 

0 

980

23,427.4

3,280.7 

8,937 

41,500 

2,489 

632.8 

47.0 

0 

0 

0

57,866.5

May

34 

31 

31 

30 

26

25 

23 22 - 

20 

20

20 

20 

19 

19 

19

22 

22 

22 

25 

25

23 

23 

20 

18 

15

13 

11 

10 

9.7 

8.2 

6.9

Maximum

0 

0 

700

4,040

1,300 

1,540 

13,300 

180 

34 

6.3 

0 

0 

0

13,300

June

6.3 

5.8 

5.3 

5.3 

4.6

3.9 

3.3 

2.6 

2.1 

1.7

1.2 

1.1 

.9 

.7 

.7

.4 

.3 

.4

" .3 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July Aug. Sept.

Minimum Mean ££«.£

00 0

oo o

0 31.6 1,940

0 64.0 46,470

4.2 106 6,510 

34 319 17,730 

198 1,339 82,310 

36 83.0 4,940 

6.9 20.4 1,260 

0 1.57 93 

00 0 

00 0 

00 0

0 159 114,800

r. 3 (4 p.m.) 34,700 sec. -ft. 

d on basis of recorded range in stage and records for
174 SALINAS RIVER BASIN

San Antonio River at Pleyto, Calif.

Location.- Water-stage recorder, lat. 35°51'55", long. 120°59'30", in Pleyto Grant, at

 highway bridge at old town site of Pleyto, Monterey County, 1.1 miles downstream from 

Copperhead Qreek and 15 miles west of Bradley. Altitude of gage, about 780 feet (from 

topographic map).

Drainage area.- 282 square miles.

Records available.- April to September 1922, December 1929 to September 1949.

Average discharge.- 19 years (1930-49), 91.8 second-feet.

Extremes.- Maximum discharge during year, 1,420 second-feet Mar. 4 (gage height, 3.02

 f'ee'tT; no flow Oct. 1 to Feb. 26, June 14 to Sept. 30.

1929-49: Maximum discharge, 11,400 second-feet Feb. 1941 (gage height, S.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 1948 to September 1949

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

0 

0 

0 

0 

0

0 

0 

0

o

0

o

0 

0

o

0 

0

o 

o 

o

Q

0 

0 

0 

0 

0

17 

26 

28

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Harp 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

bar..1 .. .................................

lendar year 1948 

apy

h. ......................................

tar year 1948-49 .......................

Mar.

28 

29 

475 

967 

422

254 

214 

179 

145 

208

771 

575 

111 

309 

£70

234 

196 

159 

159 

188

159 

145 

159 

152 

138

131

127 

117 

110 

107 

100

Apr.

98 

9,5 

92 

85 

82

80 

73 

67 

61 

57

53 

50 

50 

53 

50

49 

45 

44 

42 

42

41 

41 

41 

39

37

35 

31 

26 

24 

23

Secondfoot -days

0 

0 

0

2,814.5

0 

71 

7,638 

1,606 

309.1 

6.7 

0 

0 

Q

9,630.8

May

21 

19 

19 

17 

16

16 

14 

14 

13 

12

.11 

11 

10 

10 

10

10 

10 

9,5 

9.5 

8.8

7.6

7.6 

6.4 

5.4 

4.9

3.9 

3.E 

2.9 

2.5 

2.2 

1.7

Maximum

0 

0 

0

256

0 

28 

967 

98

21 

1.3 

0 

0 

0

967

June

1.3 

1.1 

.8 

.7 

.6

.5 

.4 

.3 

.3 

.2

.2

.2 

.1 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0

0

o

0 

0

Minimum

July

0

o

0

0

0 

0 

28 

33 

1.7 

0 

0 

0

o

0

Aug.

Mean

0 

0

o

7.69

0 

2,5 

246 

53.5 

9.97 

.22 

O 

0 

0

26.4

s«pt.

Runoff in 

acre-feet

0 

0 

0

5,590

0 

141 

15,150 

3,190 

613 

13 

0 

0 

0

19,110

Peak discharge (base, 470 sec.-ft.).- Mar. 4 (1 a.m.) l,42o sec.-ft.; Mar. 11 (9 a.m.) 910 see.-ft.
SALINAS RIVER BASIN

'175

Ai-royo Seco near Soledad, Calif.

Location.- Water-stage recorder, lat. 36°16'50", long. 121°l9'20", in sec. 16, T. 19 S., 

K. t> i;., 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 benchmark).

Drainage area.- 241 square miles.

Records available.- November 1901 to September 1949.

Average discharge.- 47. years (1902-49),. 172 second-feet,

Extremes.- Maximum discharge during year, 3,460 second-feet Mar. 3 (gage height, 7.60 

feet)'; no flow Oct. 1 to Nov. 7, July 21 to Sept. 30.

1901-49: Maximum discharge observed, about 22,000 second-feet Feb. 21, 1917, Nov. 

25, 1926 (gage height, 16.5 feet, site and datum then in use), from rating curve extended above 7,500 second-feet; no flow at times during several years.

Remarks.- Records good. No s'torage or large diversion above station.

Rating tables, water year 1948-49 (gage height, in feet,

and discharge, In second-feet) 

(SVllftlng-control method used Nov. 7 to Dec. IS)

Oct. 1 to Bar. 12 Mar. 13 to Sept. 30

1.0 0 2.0 17 4.2 458 0.9 0 1.6 16 3.1 211 

1.2 .6 2.1 24 4.6 605 1.0 .2 1.7 22 3.4 278 

1.3 1.0 2.2 34 5.0 780 1.1 .8 1.9 38 3.7 355 

1.4 l.S 2.3 46 5.5 1,040 1.2 2.0 2.1 56 4.0 438 

1.5 2.8 2.5 74 6.0 1,420 1.3 4.1 2..3 79 4.5 600 

1.6 4.2 2.7 107 6.5 1,920 1.4 7.1 2.5 106 6.0 790 

1.7 6.2 3.0 160 6.9 2,400 1.5 11 2.8 154 

1.8 8.8 3.4 240 

1.9 12 3.8 ' 338

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

£4 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

.5 

2.4 

2.6 

2.3

2.6 

2.7 

2.7 

2.8 

3.1

2.9 

2.7 

2.5 

2.9 

3.4

3.4 

3.5 

3.4 

3.6 

3.8

3.9 

4.1 

3.9 

4.1 

4.4

Dec.

4.6 

4.4 

5.0 

5.4

5.2

5.4 

5.6 

6.5 

6.2 

5.8

5.8 

5.6 

5.6 

6.2

7.5

9.1 

35 

74 

32 

20

16 

14

14 

12 

12

234 

340 

154 

85 

59 

45

Jan.

38 

35 

32 

29 

26

24 

23 

22 

2£ 

20

18 

18 

18 

18 

17

17 

16 

16 

18 

495

130 

93 

93 

74 

60

52 

45 

40 

36 

34 

31

Feb.

29 

28 

31 

40

46

76 

250 

184 

126 

100

98 

107 

87 

77 

70

64 

61 

57 

56 

53

49

47 

47 

107 

214

146 

149 

' 128

Month

Goto 

Move 

Decs

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

116 

179 

2,390 

1,330

947

480 

341 

272 

231 

1,250

1,710 

1,040 

758 

584 

465

399 

340 

296 

360 

402

328 

308 

346 

310 

278

255 

235 

220 

205 

187 

178

Apr.

165 

156 

147 

137 

129

123

116 

110 

106 

100

95

91 

88 

86 

83

80 

79 

77 

73 

69

67 

64 

62 

59 

57

56 

54 

53 

52 

52

Secondfoot-days

0 

74.2 

1,239.9

11,984.8

1,610 

2,527 

16,740 

2,686 

1,070 

294.7 

27.7 

O 

0

25,269.5

Peak discharge (base, 1,380 sec. -ft.).- Mar. 3 (7 p.m.

May

50 

48 

46 

45 

44

42 

40 

39 

- 39

40

39 

37 

36

36 

38

36 

36 

35 

35 

35

32

31 

28 

26 

25

24 

22 

21 

21 

22 

22

Maximum

0 

4.4 

340

755

495 

250 

2,390 

165 

50 

22 

3.3 

O 

0

2,390

June

22

21 

20 

17 

16

14 

14 

13 

12 

11

10 , 

9.0 

8.2 

7.4 

7.4

6.8 

6.5 

6.5 

6.5

8.2

8.6 

7.8 

6.8 

6.5 

5.9

5.3 

5.0 

4.7 

4.1

3.5

July

3.3 

2.7 

2.5 

2.5 

2.5

2.1 

2.0 

1.7 

1.4 

1.3

1.1 

1.0 

.9 

.7 

.7

.5 

.4 

.2 

.1

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug. Sept.

mnlaum Hean e£

00 0 

0 2.47 147 

4.4 40.0 2,460

0 32.7 23,770

16 51.9 3,190 

28 90.2 5,010 

116 S40 33,200 

52 89.5 5,330 

21 34.5 2,120 

3.5 9.82 585 

00 

0 .89 55 

0 

00 0

0 72.0 52,100

) 3,460 sec. -ft. j Mar. 11 (l:30 a.m.) 3,030
176 PAJARO RIVER BASIN

Pajaro River near Chittenden, Calif.

Location.- Water-stage recorder, lat. 36°54 | 00", long. 121°35'50", at State highway bridge 

u.ti mile downstream from Pescadero Creek, 1 mile southeast of Chittenden, and 2.6 miles 

downstream from San Benito River. Datum of gage is 82.06 feet above mean sea level 

(levels by Corps of Engineers). Prior to May 13, 1949, Wire-weight gage at same site 

and datum.

Drainage area.- 1,188 square miles.

Records available.- December 1939 to September 1949.

Extremes.- Maximum discharge during year, 1,980 second-feet Mar. 12 (gage height, 14.63 

reet), from rating curve extended above 900 second-feet; minimum daily, 0.1 secondfoot Oct. 7-10.

1939-49: 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. 

Flood in February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks.- Records fair. Gage'read twice daily Oct. 1 to May 12. Weekly recorder graph 

available Feb. 1 to Apr. 1. Small amount of storage and many diversions above station 

for irrigation.

Cooperation.- Weekly water-stage recorder graph furnished by Division of Water Resources, 

Department of Public Works, State of California.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.4 

.4 

.5 

.5

.4 

.1 

.1 

.1 

.1

.5 

5.0 

3.8 

3.0 

2.6

2.4 

2.4 

2.1 

2.2 

2.0

2.4 

2.2 

2.1 

2.4 

2.4

2.1 

2.1 

2.2 

2.4 

2.4 

2.4

Nov.

2.4 

2.2 

2.4 

2.1

2.1

2.4 

2.1 

2.1 

2.0 

2.1

2.1 

2.4 

2.4 

2.6 

2.4

2.6 

2.8 

2.8 

2.7 

2.6

3.6 

4.4 

4.0 

3.6 

4.2

4.0 

4.0 

4.4 

4.0 

4.0

Dec.

4.0 

4.0 

4.8 

5.2 

4.8

4.8 

4.8 

4.6 

4.6 

4.6

4.8 

4.8 

6.3 

6.5 

5.4

5.0 

5.7 

5.2 

5.4 

5.0

5.2 

5.2 

5.0 

4.8 

5.0

5.7 

6.3 

5.2 

5.4 

5.2 

5.2

Month

Octo 

Move 

Decs

Ca

Janu 

Febr 

Mare 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

Jan.

4.8 

5.4 

5.4 

5.4 

5.9

5.7 

5.7 

5.7 

5.9 

5.9

5.9 

6.1 

6.5 

6.1 

6.3

6.3 

6.3 

6.5 

7.9 

8.8

9.0 

9.5 

10 

10 

10

10 

9.5 

9.0 

8.6 

8.6 

8.1

Feb.

8.1 

8.6 

9.5 

11

12

13 

92 

105 

30 

18

17 

15 

16 

13 

15

15 

15 

15 

15 

14

14 

14 

14 

15 

15

15 

16 

15

lendar year 1948

1

si:::::::::::::::::::::::::::-:::::::::::

ter year 1948-49 ...............

Mar.

15 

34 

584 

1,230 

514

274 

177 

127 

102 

118

572 

1,690 

988 

505 

335

259 

210 

156 

197 

352

212 

173 

199 

196 

153

118 

104 

94 

85

78 

70

Apr.

63 

60 

57 

47 

44

41 

39 

38 

35 

32

29 

27 

25 

25 

22

20 

20

17 

18 

17

16

14 

14 

13 

11

12 

12 

12 

12 

11

Secondfoot-days

54.1 

87.5 

158.5

3,368.3

224.8 

575.2 

9,921 

803 

212.4 

48.1 

16.0 

31.0 

30.0

12,161.6

May

11 11

9.5 

9.0

8.8

8.4 

8.4 

8.4

8.1 

7.2

6.8 

6.1 

6.1 

6.1 

6.3

6.8 

6.3 

6.3 

6.3

6.1

6.3 

6.8 

6.3 

5.2 

5.0

4.4 

4.2 

4.4 

5.0 

5.9 

5.9

Maximum

S.O 

4.4 

6.5

168

10 

105 

1,690 

63 

11 

5.9

1,690

June

5.9 

5.0 

4.8 

4.0 

3.8

3.8 

2.6 

1.4 

1.1 

.9

.9 

.9 

1.1 

1.1 

1.1

1.1 

.8 

.5 

.5 

.7

.7 

.5 

.4 

.5 

.5

.7 

,7 

.7 

.7 

.7

Minimum

0.1 

2.0 

4.0

0

4.8 

8.1 

IS 

11 

4.2 

.4

.1

July

0.7 

.8

.5

Aug.

, 1.0

Mean

1.75 

2.92 

5.11

9.20

7.25 

20.5 

320 

26.8 

6.85 

1.60 

.52 

1.0 

1.0

33.3

Sept.

1.

Runoff In 

ao re-feet

107 

174 

314

6,670

446 

1,140 

19,680 

1,590 

421 

95 

32 

61 

60

24,120

Peak discharge (base. 400 seg.-ft.).- Mar. 4 (12 m.) 1,710 sec.-ft.; Mar. 12 (2 p.m.) l,98o sec.- 

ft.; Mar. 20 (Z a.m.) 433 see.-ft.

Note.- No gage-height record July 3-8, July 25 to Sept. 30; atage-dlseharge relation Indefinite 

July 9-24; discharge computed on basis of 6 discharge measurements made July 8, Aug. 3, 11, 23, Sept. 

15, 29.
PAJARO RIVER BASIN 

Pacheco Creek near Dunneville, Calif.

177

Location.- Staff gage, lat. 36°58'50", long. 121°22'50", in Ausaymas Y San Fellpe Grant, 

at private road bridge, 3.3 miles northeast of Dunneville, Santa Clara County. 

Altitude of gage, about 240 feet (from topographic map).

Drainage area.- 146 square miles.

Records available.- January 1940 to September 1949.

Extremes.- Maximum discharge during year, 350 second-feet Mar. 12 (gage height, 3.00 feet); 

no now for several months.

1940-49: Maximum discharge, 7,200 second-feet Feb. 2, 1945 (gage height, 15.8 feet, 

from floodmarks), by slope-area method; no flow at times in 1940, 1943-49.

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 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used Mar. 11,- 12)

1.2

1.3

1.4

1.5

1.6

,4 

1.7 

4.8 

10

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4 

2.6 

2.8

79

99

123

180

255

Discharge, In aecond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

39 

30 

31

Oct. Nov. Dec. Jan.

Month

Oc to 

Move 

Deoe

Ca

Janu 

Pebr 

Hare 

Apr!

Ntev

June 

July 

Augu 

Sept

Wa

Feb.

lendar year 194E

ter year 1948-49 .......................

Mar.

0 

0 

0 

19 

0

0 

0 

0 

0 

0

19

237 

69 

34 

21

17 

15 

15 

34

141

25 

32

70 

47 

33

25 

25 

23 

18 

18 

18

Apr.

18 

15 

14 

14 

15

15 

15 

15 

15 

17

17 

17 

17 

17 

15

15 

15 

15 

15 

15

14 

13 

13 

13 

11

11 

11 

11 

10 

10

Secondfoot -days

0 

0

o

0

0 

0 

955 

428 

76.9 

0 

0 

0 

0

1,459.9

May

10 

10 

9.0 

9.0 

8.4

7.9 

7.9 

6.9 

3.9 

2.3

1.0 

.5 

.1 

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

0

0

0 

0 

237 

18 

10 

0 

0 

0 

0

237

June July

Minimum

0 

0 

0

0

0 

0 

0 

10 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

0

0 

0 

30.8 

14.3 

2.48 

0 

0 

0 

0

4.00

Sept.

Runoff In 

acre-feet

0 

0 

0

0

0 

0 

1,890 

849 

153 

0 

0 

0 

0

2,890
178 PAJARO RIVER BASIN 

Uvas Creek near Morgan Hill, Calif.

Location.- Water-stage recorder, lat. 37°04'00", long. 121°41'30", in Las Uvas Grant, 500 

feet upstream from Uvas Dam, 0.6 mile downstream from Eastman Canyon, and 4.6 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 1949.

Average discharge,- 18 years, 34.4 seeond-fest.

Extremes.- Maximum discharge daring year, 1,380 second-feet Mar. 11 (gage height, 6.97 

' reet).j minimum, 0.2 second-foot Sept. 14-30.

1930-49: 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, 1943-46i

Remarks.- Records good. No storage or large diversion above station. Water diverted at 

Was Dam for municipal supply of Gilroy.

Rating table, water year 1948-49 (gage height. In feet,

and discharge, In second-feet) 

(Shlftlng-oontrol method used Dot. 1 to Dec. 26)

2.0 0 2.6 13 3.4 108 

2.1 .4 2.7 18 3.7 172 

2.2 1.2 2.8 25 4.0 244 

2.3 2.6 2.9 34 4.4 358 

2.4 5.2 3.0 45 4.8 486 

E.5 8.5 3.2 74 5.4 696

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

IE 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

E3 

24 

25

26 

E7 '26 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3 . 

.4 

.4 

.4 

.4

.4 

.4 

.4

.4 

.6

.6 

.6 

.6 

.6 

.5

.5 

.5 

i4

.5 

.5

.4 

.4 

.4 

.4 

.4 

.4

Nov.

0.5 

.6 

.7 

.9 

.9

.9 

.9 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

Dec.

0.9 

.9 

1.0 

1.4 

1.2

l.S 

1.2 

.9 

1.0 

1.0

1.0 

1.0 

1.6 

2.6 

1.9

1.6 

4.9 

2.6

1.6 

1.3

1.2 

1.1 

1.0

1.0 

1.1

35 

55 

16 

7.8 

5.4 

4.3

Jan.

3.8 

3.5 

3.0 

2.6 

2.4

2.4 

2.2 

2.2 

2.1 

1.9

1.8 

2.1 

1.8 

1.8 

1.8

1.6 

1.6 

1.6 

4.5 

11

6.4 

14 

IE 

9.3 

7.1

5.8 

4.9 

4.3 

3.8 

3.8 

3.5

Feb.

3.2 

3.2 

7.1 

14 

44

70 

262 

S3 

30 

22

33 

25 

20 

17 

16

14 

12 

11 

11 

10

9.3 

8.9 

8.9 

12 

13

13 

17 

14

Month

oeto

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

13 

211 

394 

260 

150

97 

74 

58 

58 

298

694 

586 

279 

181 

132

150 

108 

9E 

162 

126

104 

106 

101 

87 

76

66 

60 

55 

51 

45 

42

Apr.

38 

36 

33 

31 

30

28 

27 

26 

24 

24

23 

22 

21 

20 

19

18 

17 

17 

17 

16

14 

15 

14 

14 

13

13 

12 

11 

11 

11

Secondfoot -day a

13.3 

24.9 

160.0

3,020.1

130.6 

773.6 

4,916 

615 

235.0 

70.3 

23.8 

12.6 

7.7

6,982.8

May

11 

11 

11 

11 

10

9.3 

8.5 

8.9 

8.9 

8.5

8.5 

7.8 

7.4 

7.8 

8.1

8.5 

7.4 

7.8 

8.5 

7.8

7.1 

6.7 

6.1 

5.8 

4.9

4.6 

4.3 

4.3 

4.3 

4.6 

4.6

Maximum

0.6 

.9 

55

179

14 

262 

694 

38 

11 

4.3 

1.3 

.5 

.4

694

June

4.3 

3.8 

3.E 

3.0 

2.8

3.0 

3.0 

3.0 

2.8 

2.6

2.2 

2.2 

2.2 

2.1 

2.2

2.1 

2.2 

2.2 

2.4 

2.1

1.9 

1.9 

1.8 

1.6 

1.6

1.6 

1.6 

1.6 

1.5 

1.4

July

1.3 

1.2 

l.E 

1.2 

1.2

1.2 

1.1 

1.0 

1.0 

1.0

.9 

.9 

.9 

.9 

.9

.8 

.6 

.6 

.6 

.6

.6 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Aug.

0.4 

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4

.4 

.4 

.4

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

Sept.

0.4 

.4 

.4 

.4

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 .£ 

.2 

.2

.2 

.2 

.2 

.2 

.2

Mini Mean *£«*£

0.3 0.43 26 

.5 .83 49 

.9 5.16 317

.1 8.25 5,990

1.6 4.21 259 

3,2 27.6 1,530 

13 159 9,750 

11 20.5 1,220 

4.3 7.58 466 

1.4 2.34 '139 

.4 .77 47 

.4 .41 26 

.2 .26 15

.2 19.1 13,840

Peak .discharge (base, 740 .sec. ,-ft.).- Feb. 7 (12:40 a.m.) 997 see. -ft.; Mar. 2 (10:40 p.m.) 968
PAJARO RIVER BASIN 

San Benito River near Willow Creek School, Calif.

179

Location.- Water-stage recorder, lat. 36°36'30", long. 121°12'0", in NEi sec. 88, 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 1949.

Extremes.- Maximum discharge during year, 1,090 second-feet Mar. 3 (gage height, 6.40 feet); 

minimum, 0.2 second-foot for many days.

1939-49: 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. 19-30, Oct. 1-24, 1947.

Maximum stage known, about 9.0 feet (former site and datum), from floodmarks left by 

high water of 1937-38.

Remarks.~ Records fair except those above 100 second-feet, which are poor. Small diver* 

sions above station for irrigation.

Discharge, in second-feet, water year October 1940 to September 1949"

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

J7 

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 

,Z

Mov,

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 

.3 

.3 

.3

Dec.

0.3 

.3 

.3 

.3 

.3

.3 

,3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.6 

3.4 

.4 

.3 

.3

.3 

.2 

.2 

.2 

.2

dis 

as

44 

dS 

d2 

d2

Jan.

dl.'3

Feb.

. dl.7

Month

Octo 

Move 

Dece

oa

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

1. ..................... ...,......,,..,..

ter year 1948-49 .......................

Mar.

dl.7 

dl.6 

d250 

626 

451

370 

307 

249 

198

154

114 

78 

51 

33 

23

16 

12 

9.5

Xf 

89

42 

31 

38 

37 

30

23 

18 

15 

13 

12 

13

Apr.

12 

10 

9.0 

7.3 

5.7

4.7 

4.1 

3.5 

3.2 

2.7

2.2 

1.9

1.5 

1.4 

1.2

1.4 

1.4 

1.1 

1.0 

.9

.9 

.7 

.6 

.6 

.7

.7 

.6 

.7 

,7 

.7

Seeondfoot-days

6.2 

6.3 

39.6

587,3

40.3 

47.6 

3,321.8 

83.1 

9.3 

10.5 

9.3 

7.0 

6.7

3,587.7

Peak discharge (base, 150 sec, -ft.). -Mar, 3 (ll p.m.)

Way

0.6 

.6 

.5 

.4 

.2

.2 

.2 

.2 

.2

,2

.2 

.2 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

tS 

.3

.3 

.3 

 S 

,3 

.3 

.3

Maximum

0.2 

.3 

13

£10

626 

12 

.6 

.4 

.3 

.3 

 3

626

June

0.3 

.3 

.3 

.3 

.3

.3 

.4

.4 

.4

.4

.4 

.4

.4

.4 

.4

,4 

,4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

July

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

Aug.

0

Minimum . Mean

0.2 0.20 

,2 .21 

.2 1.28

.1 1.60

1.3 

1.7 

1.6 107 

.6 2.77 

.2 .50 

.3 .35 

.3 .30 

.2 ,23 

.2 .22

.2 9.83

1,090 sec. -ft. 5 Mar. 20 (4 a.m.)

3 

3 

3 

3 

3

3 

3 

2 

3 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2 

2

Sept.

0.2 

.2 

.2

.2

.2 

.2

.2 

.2 

.2

,3 

.3 

.3 

.3 

.3

.3 

.3 

.2

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2 

t2 

.2 

.2

Runoff in 

acre-fast

12 

12 

79

1,160

90 

94 

6,590 

165 

18 

81 

18 

14 

13

7,120

152 sec. -ft

d Doubtful gage-height record'! aischarge computed on basis of discharge measurements, precipitation 

records, and records for Tres Pinos Creek near Tres Pinos.
180 PAJARO RIVER- BASIN

Tres Pinos Creek near Tres Pinos, Calif,

Location.- Water-stage recorder, lat. 36M5'20", long. 12m? 1 00", in Santa Ana y Quien 

Babe Grant, 3.5 miles southeast of Tres Pinos, San Benito County, and 5.5 miles upstream from mouth. Altitude of gage, about 570 feet (from topographic map).

Drainage area.- 209 square miles.

Records available.- December 1940 to September 1949. December 1922 to May 1923 and DeoemDer j.yay to November 1940 at site 1 mile downstream (records of low flow not equivalent 

on account of diversion for irrigation and some subsurface flow at former site).

Extremes.- Maximum discharge during year, 525 second-feet Mar. 3 (gage height, 2.32 feet); 

minimum, 0.2 second-foot May 2.

1922-23, 1939-49: 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.

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 1948 to September 1949

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.

0.3 

.3 

,3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4 

.3

.4 

.3 

.3 

.4 

.4

.6 

1.1 

1.2 

.2 

.1

.1 

.0 

.2 

1.2 

1.2 

1.2

ooto 

Nove 

Dece

Ca

Janu 

Febr 

Mare 

Aprl

June 

July 

Augu 

Sept

Wa

Nov.

1.2 

1.2 

1.3 

1.2 

1.2

1.2 

1.2 

1.2 

1.3 

1.3

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.3 

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

Dec.

1.3 

1.3 

1.5 

1.3 

1.3

'1.3 

1.3 

1.3

1.2 

1.2

1.2 

1.2 

1.3 

1.3 

1.2

1.3 

1.4

1.3 

1.2 

1.2

1.2 

1.1

1.2 

1.2 

1.2

1.4 

1.3 

1.3 

1,3 

1.3 

1.3

Jan.

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 

1.1 

1.1 

1.3 

1.3

1.3 

1,6 

1.5 

1.4 

1.3

1.2 

1.1 

1.1 

1.2 

1.1 

1--1

Feb.

1.1 

1.1 

1.3 

1.2 

1.3

1.4

1.5 

1.4 

1.5 

1.5

1.5

1.5 

1.5 

1.5 

1.4

1.4 

1.6 

1,7 

1.6 

1.6

1.7

1.8 

1.7 

1.8 

1.6

1.7 

1.5 

1.8

Month

lendar year 1948 

ai*y

ter year 1948-49 .......................

Mar.

1.5 

1.5 

191 

166 

55

32 

14 

8,2 

6.1 

6.7

28 

10 

6.7 

4.8 

3.6

2,8 

2.2 

1.9 

3.2

50

22

13 

104 

92 

41

22 

13 

9.0 

7.0 

5.0 

4.0

Apr.

3.0 

2.2 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.7

1.7 

1.7 

1.6 

1.6

1.5 

1.5 

1.4 

1.4 

1,4

1.4 

1.4 

1.4 

1.4 

1.3

Secondfoot-days

18.5 

37.7 

39.4

377.0

39.4 

42.2 

927.2 

49.7 

14.6 

14,2 

30.5 

13.0. 

10.5

1,236.9

May

1.3 

1.0 

1.3 

.6 

.3

.3 

.3

!s

.3 

.3 

.3

Maximum

1.2 

1,3 

1.5

21

1.6 

1,8 

191 

3.0 

1.3 

1.0 

1.1 

.5 

.5

191

June

0.3 

.3 

.3 

.3 

.3

.3 

.4 

,4 

,4 

.6

.5

.4 

.4 

.5 

.6

 5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5

.5 

.7 

1.0

Minimum

July

0.9 

.8 

.9 

.9 

.9

1.0 

.9 

1,0 

.9

.9

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0

1,0' 1.0

.9

1.0 

1.0 

1.0 

1.0 

1.0

1.1 1.1 

1.1 1.1 

1.1

1.0

0.3 

1.2 

1.1

.2

1.1 

1.1 

1.5 

1,3 

.3 

.3 

.8 

.3 

,3

.3

Aug.

,0.3 

.3 

.3 

.3 

.5

.4 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

,5 

.5 

.4

.4 

.4 

.5 

.3 

.3

.3 

.4

.4 

.4 

.3 

.3

Mean

0.60 1.26' 

1.27

1.03

1.27 

1.51 

29.9 

1.S6 

 47 

.47 

.98 

 42 

.35

3.39

Sept.

0.3 

.3 

.3 

.3 

.4

.4 

.4 

.4

.4 

.5

.5 

.4 

.4 

.4 /

.4

,4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3

.3 

.3 

.3

Runoff In 

acre-feet

37 

75 

78

749

78 

84 

1,840 

99 

29 

28 

60 

26 

21

2,460

Peak discharge (base, 450 see.-ft.).- Mar. 3 (5:30 p.m.) 525 see.-ft.
SAN LORENZO RIVER BASIN 181

San Lorenzo River at Big Trees, Calif.

Location.- Water-stage recorder, lat. 37°01 I 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). v

Drainage area.- 110 square miles.

Records available.- April 1937 to September 1949.

Average discharge.- 12 years, 143 second-feet.

Extremes.- Maximum discharge during year, 3,880 second-feet Mar. 10 (gage height, 9.56 

feet'); minimum, 13 second-feet Oct. 1, 8, 10.

1937-49: 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 

s!6pe-area studies and logarithmic plotting; minimum, 0.8 second-foot June 25, 1939.

Remarks.- Records good. Many small diversions above station for domestic supply.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.7 12 1.7 55 3.5 394 

.8 14 2.0 85 4.5 718 

.9 16 2.2 111 6.0 1,300 

1.0 18 2.5 159 6.8 1,730 

1.2 25 2.8 216 7.8 2,380 

1.4 35 3.1 286

Discharge, in second-feet, water year October 1948 to September 1949

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 

50 

31

Oct.

13' 

15 

15 

15. 

14

14 

14 

14 

15

14

15 

15 

18

17 

16

16 

15 

15 

14 

14

14 

14 

14 

15 

15

15 

14 

14 

14 

14 

14

Nov.

16 

14 

18 

17

16

15 

15 

14 

14 

14

14 

14 

14 

14 

14

16 

18 

15 

16 

16

16 

16 

16 

15 

IS

15 

15 

15

15 

15

Deo.

15 

15 

18 

18 

42

40 

23 

21 

20 

19

18 

19 

24 

36 

28

29 

104 

42 

29 

24

23 

22 

21 

20 

28

502 

270 

98 

63 

49 

44

Jan.

47 

47 

39 

36 

34

32

32 

31 

30 

28

27 

26 

27 

27 

26

26 

25 

25 

121 

95

63 

80 

76 

60 

53

47 

45 

42 

40

38 

37

Feb.

36 

36 

49 

52 

95

143

507 

170 

116 

93

124 

97 

83 

74 

69

65 

60 

58 

55 

54

52 

53 

54 

158 

132

147 

149 

122

Month

Octo 

Hove 

De.ce

Ca

Janui 

Pebn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ...............

Mar.

110 

747 

1,110 

670 

439

317' 

250 

206 

235 

2,230

2,350 

1,560 

772 

S21 

409

397 

325 

284 

636 

496

380 

374 

388 

344 

296

264 

240 

223 

202 

190 

179

Apr.

166 

159 

150 

J42 

134

129 

123 

117 

112 

108

103 

100 

96 

92 

91

89 

85 

82 

82

76

74 

72 

70 

68 

67

86 

64 

63 

62 

60

Secondfoot -days

455 

457 

1,724

16,093

1,364 

2,903 

17,144 

2,902 

1,491 

854 

602 

507 

442

30,825

Peak discharge (base, 1,400 sec. -ft.).- Mar. 10 (3:30

May

60 

59 

58 

56 

55

53 

51 

52 

52 

52

51 

51 

52 

54 

54

52 

51 

52

53 

51

46 

42 

42 

40 

36

36 

37 

36 

34 

37 

36

Maximum

18 

18 

502

549

121 

507 

2,350 

166 

60 

36 

23 

18 

16

2,550

June

36 

34 

34 

32 

30

30 

31 

31 

30 

30

28 

28 

26 

28 

28

28 

26 

28 

27 

26

26 

26 

25 

25 

24

24 

23

24 

23 

23

July

23 

22 

22 

21 

21

21 

21

20 

20 

20

20 

20 

20 

20 

20

19

18 

18 

18 

18

18 

18 

18 

18 

17

17 

18 

19 

19 

19 

19

Aug.

18 

18 

17 

17 

. 16

16 

16 

16 

17 

18

18 

18

17 

17

17

17

17 

16 

16 

16

15 

15 

15 

15 

15

15 

16 

17 

16 

15 

15

Sept.

15

15 

15 

15 

16

15 

15 

15 

16 

15

15

15

15 

15 

15

IS 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

15 

15 

15

a IS

m^in,,,m it*** Runoff in Minimum Mean aore.feet

13 14.7 902 

14 15.2 906 

15 55.6 3,420

11 44.0 31,920

25 44.0 2,710 

36 104 3,760 

110 553 34,000 

60 96.7 5,760 

34 48.1 2,960 

23 27.8 1,650 

17 19.4 1,190 

15 16.4 1,010 

14 14.7 877

13 84.5 61,140

p.m. ) 3,880 sec. -ft.

947809 O - SI - 13
182 STEVENS CREEK BASIN

Stevens Creek near Cupertino, Calif.

.Location,- Water-stage recorder and concrete control, lat. SVIS'SO", long. 122°04'25",

 in stot sec. 22, T> 7 S., R. 2 W., at county highway bridge, 0.2 mile downstream from 

Stevens _Creek Dam and 2.5 miles southwest of Cupertino. Altitude of gage, about 385 

feet (from topographic map).

Drainage ar.ea.- 18.1 square miles.

Records available..- January 1930 to September 1949.

Average discharge t - 19 years, 11.7 second-feet.

Extremes.- Maximum discharge during year, 50 second-feet Dec. 26 (gage height, 2.15 feet);

 no" flow Oct. 6 to Dec. 12, Sept. 22, 28-30.

1930-49: 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, 1947-49.

Remarks.- Records good. Plow regulated by Stevens Creek Reservoir beginning in 1936 (usable capacity, 4,000 acre-feet); water released during summer.

Discharge, In second-feet, water year October 1946 to September 1949

Day

1 

2 

5 

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 

SI

Oct.

O.l 

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.1 

.6 

.7

.7 

3.6 

3.3 

1.7 

1.6

1.5 

1.5 

1.5 

1.3 

1.2

27 

\9 

8.1 

4.8 

3.6 

3.0

Jan.

5.0 

6.3 

3.8 

3.0 

2.6

3.5 

2.3 

2.2 

2.0 

1.9

1.6 

1.9 

1.7 

2.2 

2.0

1.6 

1.6 

1.6 

2.6 

4.5

2.8 

5.7 

6.0 

4.2 

3.6

3.0 

2.8 

2.6 

2.5 

2.3 

2.3

Feb.

2.2 

3.3 

4.2 

4.8 

8.1

8.5 

12 

18 

17 

10

15 

15 

11 

7.5 

5.4

5.1 

5.1 

6.7 

.4 

.4

.4 

.0 

.8 

.0 

.1

8.5 

13 

16

Month

Octo 

Hove

Deoe

Ca

Janu 

Febr 

Marc 

Apri

Hay.

June 

July 

Augu 

Sept

Wa

nbef . ................-..-...------.----.

lendar year 1948

ter year 1948-49 .......................

Mar.

15 

20 

34 

10 

9.0

8.9

11 

12 

11 

17

' 20 

12 

11 

11 

11

11 

13 

14 

15 

14

14 

14 

14 

14 

14

14 

14 

14 

16 

17 

18

Apr.

15 

15 

16 

17

16

15 

15 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14

14 

13

13 

13 

13 

13 

13

13 

13 

13 

13 

13

Secondfoot-days

0.5 

0 

83.8

1,040.8

90.7 

235.4 

432.9 

420 

288.1 

141.9 

463.8 

471.2 

92.1

3,720.4

May

13 

13 

13 

13 

13

11 

10 

10 

10 

9.7

9.7 

9.7 

9.7 

9.7 

9.7

10 

10

9.7 a.i

7.7

7.7 

7.7 

7.7 

7.7 

7.4

6.7 

6.7 

6.7 

6.7 

6.7 

6.7

Maximum

0.1 

0 

27

39

6.3 

18 

24 

17 

13 

7.4 

25 

E3 

6.7

27

June

6. 

6. 

6. 

6. 

6.

6. 

6. 

6.7

6.7 

7.0

7.0 

7.0 

7.0

7.4 

7.4

7.4 

5.3 

3.8 

3.6 

3.6

2.3 

1.3 

1.3 

1.3 

1.5

1.5 

1.5 

1.5 

1.5 

1.5

July

1.5 

1.5 

1.6

1.6 

1.6

3.1 

5.4 

8.5 

9.3

9.7

14 

17 

17 

17 

17

17 

17 

18

20 

20

26 

32 

23 

22 

25

24 

22 

22 

32 

33 

22

Minimum

0 

0 

0

0

1.6 

2.2 

8.9 

13 

6.7 

1.3 

1.5 

6.3 

0

0

Aug.

21 

21 

21 

21 

32

22 

22 

22 

22 

23

23 

22 

32 

22 

21

17 

12 

12 

12 

11

11 

11 

7.8 

6.3 

8.3

6.3 

6.3 

6.3 

6.3 

6.3 

6.3

Mean

0.02 

0 

2.70

2.84

2.93 

8.41 

14.0 

14.0 

9.29 

4.73 

15.0 

IS. 2 

3.07

7.4S

Sept.

6.3 

6.3 

6.7 

6.7 

5.7

6.0 

5.7 

5.1 

4.0

4.0

3.8 

3.4 

3.6 

3.8 

3.8

3.8 

3.6 

3.2 

2.7 

1.5

.8 

0 

.2 

.5 

.4

.3 

.2 

0 

0 

0

Runoff in 

acre-feet

1.0 

0 

166

2,060

180 

467 

859 

835 

571 

281 

920 

935 

183

5,400
GUADALUPE RIVER BASIN 

Alamitos Creek near Edenvale, Calif.

183

Location.- Water-stage recorder, lat. 37°14'SO", long. ISrsa'lS", In SWi sec, 16, T. 8 S., 

R. 'IK., 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 1949.

Average dis.charge.- 19 years, 17.8 second-feet.

Extremes.- Maximum discharge during year, 269 second-feet Mar. 11 (gage height, 4.36 feet); 

no flow Oct. 1 to Feb. 6, June 19 to Sept. 30.

1930-49: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 

feet), from rating curve extended above 1,800 seeond-feet; no flow for several months 

each year except 1948, 1943.

Remarks.- Records good, Flow regulated by Calero Reservoir beginning in 193S,(capacity, 

3,213 acre-feet, corrected) and Almaden Reservoir (capacity, 2,500 acre-feet); water 

released during summer. Small diversions above station

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14

15

16 

17 

18 

19 

SO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

Feb.

0 

0 * 0 

0 

0

0

1.1

15

23, 

15

13 

15 

10- 

9.3 

8,1

7.6 

7.6 

7.6 

7,2 

6.4

6.1 

5.4 

5.0 

4.6

4.6

4.6 

5.0 

6,4

lendar year 1948

h. ......................................

'

ter year 1948-49 .......................

Mar.

8.1 

18 

57 

28 

27

21 

45 

36 

31 

94

112 

79 

157 115- 

87

69 

43 

26 

28 

33

3E 

41 

40 

31 

22

14 

12 

12 

14 

15 

14

Apr.

14 

16 

20 

20 

20

21 

28 

41 

39 

35

37 

37 

38 

34 

31

37 

32 

30 

30 

31

33 

33 

36 

35 

35

33 

31 

50 

31 

31

Secondfoot-daye

0 

0 

0

998.8

0 

185.6 

1,361,1 

919 

859 

416.9 

0 

0 

0

3,741.6

May

31 

29 

21 

15 

28

34 

23 

24 

26 

28

30 

30 

30 

29 

30

E6 

27 

29 

28 

26

25 

27 

27 

27 

26

29 

29 

29 

32 

32 

30

Maximum

0

0 

0

45

0 

21 

157 

41 

34 

29 

0 

0 

0

157

June

29 

27 

26 

25 

26

27 

26 

29 

25 

24

24 

24 

23 

22 

23

23 

13 

.9

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

July

Minimum

0 

0 

0

o

0 

0 

8.1 

14 

15 

0 

0 

0 

0

0

Aug.

Mean

O 

0 

0

2.73

0 

6.63 

43.9 

30.6 

27,7 

13,9 

0 

0 

0

10,3

Sept.

Runoff In 

acre-feet

0 

0 

0

1,980

0 

368 

2,700 

1,820 

1,700 

887 

0 

0 

0

7,420
184 GUADALUPE RIVER BASIN

Guadalupe River at San Jose, CalifLocation.- Water-stage recorder and concrete control, lat. 37°20'00", long. 121°54'00", 

at San Jose, Santa Clara County, 100 feet downstream from Los Gates Creek. Altitude 

of gage, about 80 feet (from topographic map).

Drainage area.- 131 square miles.

Records available.- January 1930 to September ly^s.

Average discharge.- 19 years, 35.3 second-feet (affected by storage and spreading since 1936). 

Extremes.- Maximum discharge during year, 3,300 second-feet Mar. 10 (gage height, 7.29 

reet); no flow during most of year.

1930-49; 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. Plow regulated by several reservoirs. Small diversions above 

station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

1.3 

1.5

0 

0 

0 

0 

0

0 

.5 

0 

0 

0

0 

0 

0 

0 

0

14 

34 

0 

0 

0 

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

.6 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

6.9 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Month

Oc to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mov

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h.......................................

Mar.

0 

35 

410 

233 

15

41 

.6 

2.6 

1.6 

813

1,360 

950 

464 

226 

188

172 

84 

48 

221 

136

84 

137 

89 

54 

29

7.6 

.1 

14 

0 

0 

0

Apr,

Secondfoot -days

0 

0 

51.3

639.7

.6 

6.9 

5,815-5 

0 

0 

0 

0 

0 

0

5,874.3

May

Maximum

0 

0

34

229

.6 

6.9 

1,360 

0 

0 

0 

0 

0 

0

1,360

June

Minimum

July

0 

0

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug. -

Mean

0 

0 

1.65

1.75

.02 

.25 

188 

0 

0 

0 

0 

0 

0

1S.1

Sept.

Runoff In 

acre-feet

0 

0 

102

1,270

1.2 

14 

11,530 

0 

0 

0 

0 

0 

0

11,650
G 

MTOCM 

TO 

OT3

C8 

O

3 

LTJ O.C3

Average discharge.- 19 years, 10.5 second-feet.

Extremes.- Maximum discharge during year, 238 second-feet Mar. 11(gage height, 2.20 feet)

0 -H'

*LO cd as

O IB 1-1

O 

as

JH 

11' S

 H D. -H

<B 43

-fi WJ 3E

bQ ?H T3 

a 3 ?H 

 D O

S (B 

rH 0 5n 

TOrH

O M

00 COIN .- J3

 IB (B

o d> tjfl 

cti 1-4 as 

O i 60

no ITOWOct. 1-4, Sept. 18-30. 

1930-49: Maximum discharge, 1,160 second-fee feet), from rating curve extended above 840seco 

year except 1937,8, 1941-45.

Remarks.- Records good exceptthose for period of n

** OCJ to 

M B""!"" 

P rfrtr" 

CO O

3

o o §

TH IH CO O iH ^

M-H -p ft ra ° 

 - as M o 10 _

-P IT** »4i O rH CD CD CO 

X>CO (U4J ' .... "*

 ^3 j= o> i/) O IH en

Ji CO 0> rH "TH 

rH > g,<7 . t,

r Quadalupe Reservoir tieginning iring summer. Small diversions Rating tables, water year 1948-49 

and discharge, in sect 

(Backwater corrections applied C

to Mar.11

6 3.31242 0.

7 6.1 145

8 10.693

9 16.8129 0 231.951

rge, in second-feet, water year Oct

OV rH 0 rt «!

 OTJ A a

CD (B o g

as as

rH (B * 

3rH OrHUllO

CO ^t O rH 

S <D rHlO

'H 3E 0

rHii

.!Is

.pii4IIii

o o

^ nnWrt WWWrHW n««WW « W « 

rHO.rH^rH ON) t- CO CO <D «)««<£,« -* n n 

rH rHr-lrH rH

cococor-w Ococncom co co co CD CD coi-i

cncncncoco cocococor- t-r-cococo cococo

rH

22222 SB8! o" 25252 222

WOCO^CD UJUJMWN WWWW« rHrHrH

rHOOr-0 WCOCOtOcr) CO O CO « O> r- CD 

o'''' ..... ..

rH rtMrHrHrH CO ID in r- If, « n n 

rHWio^u} 

oooo

cor-cocno i-iwto^io cor-c

rH rHcHtHrHrH rHrHrH
186 GUADALUPE RIVER BASIN 

Los Oatos Creek below Los Gatos, Calif.

Location.- Water-stage recorder, lat. 3?"14', long; 121*68', 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 squar'e miles.

Records available.- June 1944 to September 1949. January 1930 to May 1944 at sloe at 

u>s uatos.

Extremes.' Maximum discharge during year, 2,550 second-feet Mar. 11 (gage height, 7.58 

reet) from rating curve extended above 260 second-feet on basis of previous highwater rating; no flow during several months.

1930-49: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 

feet, former site and datum), from rating curve extended above 2,300 second-feet by 

logarithmic plotting; no flow during part of most years.

Remarks,- Records good except those above 300 second-feet, which are fair. Plow regulated by several small reservoirs above station. Several diversions above station for 

irrigation. Vasona percolation reservoir is just below station.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0

.1

.2 

.2

o

0 

0 

0 

0 

0

Dec.

0 

0 

0 

0 

0

0 

.8 

1.0 

1.2 

1.2

1.3 

1.4 

2.1 

6.3 

4.0

3.7 

19 

7.2 

1.6 

1.2

1.2 

1.2 

1.2 

1.3 

1.9

165 

103 

32 

16 

3.6 

2.5

Jan.

2.3 

1.9 

1.8 

1.5 

1.3

1.3 

1.2 

1.2 

1.2 

1.2

ItO 

1.0. 

.9 

.9 

.9

.9 

.9 

.9 

3.4 

9.7

1.9 

19 

15 

3.0 

1.9

1.8 

1.5 

1.3 

1.2 

1.2 

1.0

Feb.

0.9 

1.0

11 

9.6 

33

57 

168 

50 

SO 

9.7

27 

15 

7.0 

3.9 

2.3

2.1 

1.6 

1.3 

1.3 

1.2

1.0 

1.0 

1.0 

29 

23

42 

57 

33

Month

Octo 

Move

Dace

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 600 sec. -ft.).- Mar.

Mar.

18 

311 

70S 

420 

209

135 

97 

71 

82 

915

1,500 

899 

390 

258 

192

206 

160 

132 

285 

212

174 

180 

160 

136 

99

80 

72 

69 

61 

67 

63

Apr.

61 

57 

49 

47 

43

37 

37 

35 

32 

30

29 

26 

23 

23 

22

20 

18 

18 

17 

16

14 

13 

14 

18 

12

11 

10 

9.8 

8.0 

8.0

May

7.6 

7.6 

6.8 

6.2 

13

4.6 

7.9 

4.6 

3.2 

2.5

2.2 

2.2 

2.2 

2.5 

4.9

6.5 

2.5 

2.2 

2.0 

1.8

1.5

l.S 

1.5 

1.5 

1.3

1.2 

1.0 

1.0 

1.2 

1.2 

1.0

Second- M**! ,- foot-days "a** " 

0 0 

.5 .2 

380.9 165

3,885.] 448

84.2 19 

609.9 168 

8,358 1,500 

757.8 61 ids. 9 13

25.7 1.2 

12.7 .5 

7.5 .5 

S.I .5

10,349.2 1,500

June

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.2 

1.2 

1.0 

1.2

1.2 

1.0 

1.0 

.9 

.8

.8 

.8 

.8 

.8 

.8

.8 

.7 

.8 

.8 

.7

.6 

.5 

.5 

.4 

.4

July

0.5 

.5

.5

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.S 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2 

.5

Aug.

0.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2

.3 

.3 

.3 

.3

.4

.5 

.5 

.5 

.S 

.S

Sept.

0.5 

.5 

.5 

.4 

.4

.4

.4 

.3 

.3 

.3

.2 .2" 

.2 

.1 

.1

.1 

.1 

0 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

mnlM Mean »««.£

00 0 

0 .02 1.0 

0 12.3 756

0 10.6 7,700

.9 2.72 167 

.9 21.8 1,210 

18 270 16,580 

8.0 25.3 1,500 

1.0 3.45 212 

.4 .86 51 

.2 .41 25 

.1 .24 15 

0 .17 10

0 28.4 20,530

3 (2 p.m.) 1,070 sec. -ft.; Ma*. 11 (1 p.m.) 2,550 sec.-
GUADALUPE RJVER BASIN 

Campbell Creek at Saratoga, Calif.

197

.- Water-stage recorder and concrete control, lat. 37°15'15", long 122°02'25" 

l r2« *ant> ,°' 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 1949.

Average discharge,- 16 years, 9,17 second-feet.

ExfcJL eme.!:' Maxlmum discharge during year, 293 second-feet Mar, 11 (gage height 3 08 feet)- 

no now during several months. '

1933-49: Maximmp 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 

I<i4q i ( 4°rreeted ' 194 °; no flow during part of each water year, except possibly 1941,

Remarks.- Records good. Diversion and regulation above station by San Jose Water Works.

Rating tables, water year 19*6-49 (gage height, in feet,

and discharge, in second^feet) 

(Shifting-control method used Mar. 2, 3}

Oct. 1 to Mar. 2 Mar . 3 to Sept< 3Q

1:1 2.0

-9 

1.0 

1-1 

1.2

1.6 

2.6 

4.0

1.5 

ill

1.7

1.8

1.9

a oo

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

3

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

0 

o 

o

0

o

0

o

0 

0 

0

.2

!e

.6

.6

.5 

,5 

.5 

.5 

.5

.2 

0 

0 

0

0

0 

0

o

0

.1

0

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Nov.

O.2 

.3 

.3 

.1 

0

0 

0 

0 

0 

0

0

o 

o

0 

0

0

.1

.1

0

o

0 

0 

0 

0

0

0 

0

o

0 

0

Dec.

O 

0

.6 

1.0 

.8

.9 

0 

0 

.1 

.3

.4

.5 

1.4

1.8 

1.0

2.3 

5.2 

2.0 

1.0 

.5

.6

,7 

.8 

.7 

1.5

34 

16 

6.5 

3.3 

2.2 

2.3

Jan.

2.1 

2.O 

1.7 

1.6

1.5

1.2 

1.1 

1.1 

1-2 

1.2

1.1 

.9 

.8 

,8 

.8

.8 

.8 

.8 

1.9 

2.0

1.5 

3.6 

3.5 

2.2 

1.6

2.0 

1.6 

1.6 

1.5 

1.4 

1.4

Feb,

1.3 

1.4 

3.3 

3.4 

10

12 

24 

12 

7.4 

5.7

7.0 

5.5 

4.5 

3.9 

3.6

3.3 

3,1 

3.0 

2,9 

2.5

2.3 

2.5 

2.6 

6.3 

5.7

8.8 

12 

9.1

Month

her. ....................................

lendar year 194E .......................

uw*y . .

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

ter year 1948-49 .......................

Mar.

7.2 

54 

108 

58 

34

24 

20 

16 

19 

112

204 

122

67 

42

33

30 

25 

23 

48 

37

30 

32 

28 

26 

22

20 

19 

18

16 

15

Apr.

14 

13 

12 

11 

10

9.9 

9.3 

9.0 

8.4 

7.8

7,5 

7.2 

6.9 

6.6

6.0 

5.8 

5.8 

5.6 

5.2

4.6 

4.1 

4.0

3.8 

.5.8

3.6 

3.6 

3,8 

3.5 

3.3

Secondfoot-days

5.3 

1.1 

88.4

834.1

47.3 

169.1 

1,326.2 

205.4 

71.1 

7.7 

1.4 

.2 

0

1,923.2

May

3.3 

3.2 

3.2 

3.1 

2.7

2.4 

2.1 

2.5 

2.5 

2.4

2.5 

2.6 

2.4 

3.3 

3.0

2.8 

2.7 

 2.2 

2.8 

2.5

2,1 

2.0 

1.6 

1.1 

1.2

1.2 

.8 

.9 

2.0 

1.9 

2-3,

Maximum

0.6 

.3 

34

51

3.6 

24 

204 

14 

3.3 

1.5 

.3 

.1 

0

204

June

1.5 

.7 

,2 

.2 

.2

.4 

,4

.3 

.2 

.2

.2 

.4 

,4 

.1 

O

0 

.2 

.2 

.6 

.4

.1 

0 

0 . 2 

.1

.1 

.3

.1 

0 

0

July

Minimum

0

0 

0

0

8 

1 3 

7 2 

3 3 

8 

0 

0 

0 

0

O

0.1 

.2 

.3 

.2

.1

.1

.1 

.1 

.1 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0

0 

0 

0 

0 

0

Aug,

0 

O 

0

0 

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0

0 

0 

0

Mean

0.17 

.04 

2.85

2.28

1.53 

6.04 

42.8 

6.85 

2.29 

.26 

.05 

.01 

0

5.27

1

1

Sept.

Runoff in 

acre-feet

11 

2.2 

175

1,650

94 

335 

2,630 

407 

141 

15 

2.8 

.4 

0

3,810
188 COYOTE CREEK BASIN

Coyote Creek near Madrone, Calif.

Location.- Water-stage recorder, lat. 37°10'00", long. 121°37'40", in northwest corner 

of San Jose Grant, 0.2 mile upstream from highway bridge at mouth of canyon, 0.2 mile 

downstream from Las Animas Creek, and 2,8 miles northeast of Madrone, Santa Clara 

County. Altitude of gage; about 420 feet (from topographic map).

Drainage area.- 193 square miles.

Records available.- October 1902 to September 1912, December 1916 to September 1949.

Average discharge.- 43 years, 73.6 second-feet.

Extremes.- Maximum discharge during year, 663 second-feet Mar. 11 (gage height, 6.34 feet); 

 minimum, 0.2 second-foot Oct. 27-30.

1902-12, 1916-49: Maximum discharge, 25.000 second-feet probably Mar. 7, 1911 

(record furnished by Duryea, Haehi & Oilman); no flow at times.

Remarks.- Records good. Regulation by Coyote Reservoir beginning in 1936 (capacity, 

K4,bbO acre-feet); water released during summer. No large diversion.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.4 

.4 

.5

.5 

.4 

.4 

.4 

.4

.6 

.6 

.5 

.6 

.6

.6 

.5 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.2 

.2 

.2 

.2 

.3

Nov.

0.3 

.3 

.3 

r3 

.3

.3 

.3 

.3 

.3 

.3

,3 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.5 

.5

.5 

.5 

.5 

.5 

.6

.8 

1.0 

1.0 

1.0 

1.1

Dee.

1.0 

1.0 

1.3 

1.3 

1.2

1.3 

1.3 

1.3

1.3 

1.2

1.1 

1.1 

1.5 

1.8 

1.6

1.4 

2.6 

1.8 

1.4 

1.3

1.3 

1.2 

1.1 

1.1 

1.4

3.5 

3.7 

1.9 

1.4 

1.3 

1.2

Jan.

1.1 

1.1 

1.0 

.9 

.9

1.0 

1.0 

1.0 

1.0 

1.2

1.1 

1.1 

1.3

1.1 

1.1

1.1 

1.1 

1.1 

1.8 

1.6

1.4 

2.2 

2.0 

1.6 

1.5

1.4 

1.4 

1.4 

1.4 

1.6 

1.6

Feb.

1 6 

3 4 

4 8 

5 9 

6 5

6.6 

11 

31 

52 

31

22 

10

11 

21 

27

26 

25 

24

18 

14

5.8 

5.4 

5.4 

5.9 

5.5

6.4

7.1 

6.6

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

7.6 

35 

209 

85 

38

30 

91 

81 

46 

134

388 

350 

113 

58 

39

45 

84 

67 

117 

60

43 

51 

90 

128 

64

46 

40 

39 

45 

40 

36

Apr.

Secondfoot -day s

12.7 

14.6 

46.9

2,426.1

40.1 

399.9 

2,697.6 

1,333 

1,725 

1,467 

1,220.7 

143.2 

88.8

9,189.5

37 

43 

41 

40 

40

40 

40 

40 

39 

38

38 

38 

38 

36 

32

32

32 

32 

32

31

34 

43 

46 

57 

58

61 

75 

72 

74 

74

May

73 

73 

73 

69 

58

56 

56 

56 

55 

48

50 

55 

59 

60 

60

60 

55 

54 

49 

48

53 

53 

51 

49 

51

53 

51 

51 

49 

48 

49

Maximum

0.6

1.1 

3.7

175

2.2 

52

388 

75 

73 

58 

62 

6.2 

4.0

388

June

48 

52 

51 

51 

44

SO 

48 

48 

46 

48

56 

49 

51 

58 

56

51 

49 

48 

43 

46

46 

51 

48 

48 

48

48 

48 

48 

47 

42

July

41 

38 

38 

38 

38

38 

40 

43 

43 

43

48 

55 

55 

58 

62

60 

61 

58 

46 

46

50 

58 

40 

12 

18

23 

23 

22

12 

7.1 

6.6

Minimum

0.2 

.3 

1.0

.2

.9 

1.6 

7.6 

31 

48 

42 

6.6 

4.0 

1.9

.2

Aug.

6 

4 

4 

4 

4

5 

5 

5 

5 

5

4 

4 

4

4 

4

4 

4 

4

4 

4

4 

4 

4 

4 

4

4 

4 

4

4 

4

4

Mean

0.41 

.49

1.51

6.63

1.29 

14.3 

87.0 

44.4 

55.6 

48.9 

39.4 

4.62 

2.96

25.2

.2

.7 

.4

.7 a 

.1

.2 

.2

,4 

.1

.5 

.3 

.3 

.4 

.4

.0 

 8 

.8 

.7 

.3

.2 

.2 

.3

.3 

.4

.4

.5 

.7 

.3 

.4 

.2

Sept,

4.0 

4.0 

4.0

4.0 

4.0

3.9 

3.8 

3.7 

3.5 

3.5

3.5 

3.5 

3.1 

3.0 

2.9

2.9 

2.7 

2.3 

2.0 

2.0

1.9 

2.1 

2.2 

2.4 

2.4

2.5 

2.3 

2.2 

2.2 

2,3

Runoff In 

acre-feet

25 

29 

93

4,810

80 

793 

5,350 

2,640 

3,420 

2,910 

2,420 

284 

176

18,220
COYOTE CREEK BASIN 

Coyote Creek near Edenvale, Calif.

189

Location.- Water-stage recorder and concrete control, lat. 37°16'15", long. 121°47'55"i 

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 1949.

Average discharge.- 33 years, 38.3 second-feet; affected by storage and spreading since 

1936. '

Extremes.- Maximum discharge during year, 329 second-feet Mar. 12 (gage height, 3.77

reetj; no flow most of year.

1916-49: 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 good except those for Mar, 11-13, which are fair. Water pumped from

wells along creek above station for irrigation. Plow regulated by Coyote Reservoir

beginning in 1936 (capacity, 24,560 acre-feet) and by detention in percolating reservoir

6 miles above station; water released during summer.

Rating table, vater year 1948^49 (gage height, in feet,

and discharge, in second-feet) 

(Backwater corrections applied Mar. IE, 13)

2.16 

2.Z

2.3

2.4

2.5

.1

.6

2.2

5.5

2.6

2.7

2.9

3.0

3.1 85

3.2 112

3.3 146

3.5 234

Discharge, In second-feet, water year October 1948 to Septetaber 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

IE 

13 

14 

15

16 

17 

18 

19 

20

El 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

'

Month

Ooto 

Move 

Dece

ca

Janu. 

Febp 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0

o

0

34 

193 

8(5 

18 

.5

0 

0 

.6 

17 

36

1.0 

0 

0 

43 

18

3.1 

0 

0 

0 ' 

0 

0

Apr.

Secondfoot -days

0 

0 

0

0

0 

0 

450.2 

0 

0 

0 

0 

0 

0

450. 2

May

Maximum

0 

0

0

0

0 

0 

193 

0 

0 

0 

0

a

0

193

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 

.. 14.5

0 

0 

0 

0 

0 

0

1.23

Sept.

'

Runoff In 

acre-feet

0 

0

0

0

0

0 

'893 

0 

0 

0 

0

.*°o

893
190 ALAMEDA CREEK BASIN 

Alameda Creek near Miles, Calif.

Location.- Water-stage recorder and concrete control, lat. 370 3S'15", long. 121°57'35", in 

 Arroyo de la Alameda Grant, 0,1 mile upstream from highway 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 1949.

Average discharge.- 32 years (1916-19, 1980-49), 78.0 Second-feet.

Extremes.- Maximum discharge during year, 755 second-feet Mar. 12 (gage height, 4.76 feet); 

no now for several months.

1916-49: Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gag* 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. -

Ratine table, water year 1948-49 (gage height, in feet, 

and discharge, In second-feet)

1.6

1.7

1.8

1.9

2.0

2.1

1.1 

2.2 

3.6 

5.4

2.2

2.3

2.4

2.5

2.6

2.7

7.4

9.9

13

16

20

24

2.8

2.9

3.0

3.1 

3.3 

3.5

29

35

42

53

85

129

3.7 

S.9 

4.0 

4.3 

4.6

183

252

295

445

640

Discharge, In second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan.

0

o

0

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.4 

1.0 

1.0

.9 

.9 

.8 

.6 

.6 

.6

Feb.

0.6 

.6 

.7 

1.2 

23

16 

73 

41 

19 

9.9

12 

9.9 

7.4 

6.0 

5.0

4.3 

3.6 

3.2 

2.7 

2.6

2.3 

2.7 

3.2 

3.6 

3.2

2.9 

2.9 

2.7

Month

Oc to 

Nove

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

Juna 

July 

Augu 

Sept

Wa

lenflar year 1948

ter year 1948-49 .......................

Mar,

2.7 

4.6 

47 

124 

38

20 

14 

10 

11 

15

213 

605 

368 

170 

39

51 

35 

28 

32 

42

36 

42 

99 

85 

60

40 

30 

22 

16 

12 

9.9

Apr.

8.6 

7.9 

7.6 

6.8 

6.4

5.8 

5.2 

4.4 

4.S 

4.1

3.9 

3.6 

3.6 

3.3 

3.4

3.2 

3.0 

3.0 

2.9 

2.9

2*7 

2.6 

2.6 

2.4 

2.3

2.2 

2.2 

2.2 

2.2 

2.0

Secondfoot -days

0 

0 

0

431.5

6.9 

265. 2 

2,371.2 

117.3 

61.7 

7.6 

0 

0 

t>

2.829.9

May

2.4 

2.6 

2.3 

2.3 

2.7

2.3 

2.2 

2.2 

1.7 

2.0

2.2 

2.3 

2.2 

2.7 

2.9

2.4

2.2 

2.2 

2.3 

2.2

2.S

2.0 

2.0 

1.5 

1.2

1.1 

1.1 

1.0 

1.1 

1.1 

1.0

Maximum

0 

0 

0

54

1.0 

73 

605 

8.6 

2.9 

.9 

0 

0 

0

605

June

0.9 

.9 

.8 

.6 

.5

.4 

.2 

.3 

.3 

.5

.2

.2 

.1 

0 

0

0 

0 

0 

0 

0

6 

6 

0 

.3 

.5

.4

.3 

.3

.1 

0

July

Minimum

0

0

0

0

0 

.6 

2.7 

2.0 

1.0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

1.18

.22 

9.47 

76.5 

3.91 

1.99 

.25 

0 

0 

0

7.75

Sept.

Runoff in 

acre -feet

0

0 

0

856

14 

526 

4,700 

' 233 

122 

15 

0 

0 

0

5,610
SAN LORENZO CREEK BASIN 191

San Lorenzo Creek at Hayward, Calif.

Location,- Water-stage recorder, lat. 37°41', long. 123°04', in San Lorenzo Grant at 

RTlnwIy bridge on B Street, just outside city limits of Hayward, Alameda County, 0.5 

mile downstream from Palomares Creek; Datum of gage i& 133.Ife feet above mean sea 

level (datum of 1929).

Drainage area - 38.0 square miles.

Records available.- January to September 1940, October 1946 to September 1949.

Extremes.- Maximum discharge during year, 510 second-feet Mar, 11 (gage height, 5.64 feet); 

no rrow during several months.

1940, 1946-49: Maximum discharge observed, 3,440 second-feet Feb. 27, 1940 (gage 

height, 13,13 feet corrected), by sloperarea 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.

Di8char$e, in secon<l-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

39 

31

Oct.

0 

0 

0 

0 

0

0 

0 

Q 

0 

0

.1 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0

0 

0 

0 

0 

0

o

Nov. Dee.

0 

0

.1

' 0 .1

0 

0 

0 

0 

Q

0 

.1 

.1 

,2 

0

.2

.1 

0 

0 

0

0 

0 

0 

0 

.2

1.7 

.6 

.6 

0 

0

.1

Jan.

1.2 

2.0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 . 

0 

0 

.9 

1.3

.3 

2.2 

2.2 

,6 

.3

.2 

.2 

,2 

.2

.1 

.1

Feb.

0.2 

.3 

.6 

13 

33

40 

61 

14 

6.6 

6.7

15 

8.2 

6.3 

5.4 

5.0

4.7 

4.4 

4.1 

3.8 

3.5

2,9 

2.9

3.5 

6.0 

4.1

4.1 

3.8 

3.2

Month

00 to 

Move 

Dece

Ca

Janu 

Febr 

Mare 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1948

h.......................................

ter year 1948-49 .......................

Mar,

3.2

14 

103 

50 

27

19 

16 

14 

18 

28

232 

121 

60 

39 

30

27 

20 

18 

98 

44

33 

55 

44 

34 

29

25 

23 

20 

17 

16 

15

Apr.

14 

13 

13 

11 

11

10 

9.7 

9.3 

8.9 

8.9

8.5 

8.1 

7.7 

7.3 

6.9

6.9 

6.6 

6.6 

6.3 

6.0

5.7 

5,4 

5.4 

5,1 

4.8

4-5

4.5 

4.5 

4.5 

4.2

Secondfoot -days

0.1 

0 

4.1

394.2

12.0 

266.3 

1,292.2 

228,3 

86.8 

9.6 

.6 

0 

0

1,902.0

May

4.2 

4.2 

3.6 

3.6 

3.4

2.9 

2.6 

2.6 

2.4 

2,4

2.9 

2.9 

3.1 

3,6 

3.6

3.3 

2.6 

3.1 

4.5 

2.9

2.6 

2.4 

2.2

1.8 

2.0

2.0 

2.0 

2.0 

2.0

1.8

1.6

Maximum

0.1 

0

1.7

32

2.2 

61 

232 

14 

4.5 

1.4 

.1 

0 

0

232

June

1.4 

1.2 

.6 

.4 

.2

.3

.4 

.5 

.4 

.4

.3 

.4 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1 

 2 

.2

.2 

.2 

.2 

.1 

.1

Minimum

July

0

0 

0

0

0 

.2 

3.2 

4.2

1.6 

.1 

0

8

0

0.1

.1 

.1 

,1 

.1

.1

0 

0 

0 

0

0

o

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

AHg,

Mean

0.003

0 

.13

1.08

.39 

9.58 

41.7 

7.61 

2.80 

,32 

.02 

0 

0

5.21

Sept,

Runoff In 

aore-feet

0.2 

0 

8.1

782

24 

532 

2,560 

453 

172 

19 

1.2 

0 

 P

S,77Q

Peak discharge (base, 550 see.-ft.).- Feb.6 (11 p.m.) 366 sec.-ft.! Map. .11 (2:30 p.m.) 510 see.-ft.
192 KERN RIVER BASIN

Kern River near Kernville, Calif.

Location.- Water-stage recorder, lat. 35°56' , long. 118°29', in NE-J sec, 14, T. 23 S., R. 

32 ti., 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 1949.

Average discharge.- 37 years, 707 second-feet, combined flow of Kern River near Kernville 

and K.ern Kiver NO. 3 Canal.

Extremes.- Maximum discharge during year, 1,420 second-feet May 28 (gage height, 7.93 

I'eet); minimum, 1.4 second-feet July 7.

1912-49: Maximum discharge, 9,690 second-feet (unregulated) Jan. 17, 1916 (gage 

height, 8.8 feet, datum then in use), from rating curve extended above 4,100 secondfeet; no flow at times 'during period July 31, 1924, to Feb. 7, 1925.

Extremes do not include flow in Kern River No. 3 Canal.

Remarks.- Records good except those below 100 second-feet, which are fair. Kern River 

No. 3 Canal (see p.197) diverts 1 mile above station.

Cooperation.- Water-stage recorder graph and 10 discharge measurements, furnished by

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 291 

30 

31

Oct.

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8

2.0 

1.8 

1.7

1.6 

1.5 

1.5 

1.6 

1.6

1.6 

1.6

1.7 

1.7 

1.8

1.8 

1.8 

2.0 

2.1 

Z.I 

2.1

Nov.

2.1 

2.0 

2.1 

2.5 

2.4

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.5 

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 

2.5 

2.5 

2.5 

2.5

Dec.

2.5 

2.5 

2.5 

2.5 

2.4

2.4 

2.2 

2.2 

 2.4 

2.4

2.4 

2.4 

2.4 

2.5 

2.5

2.4

2.5 

a2.5 

a2.5 

a2.5

a2.5 

a2.5 

a2.5 

a2.5 

a2.5

a2.5 

a2.5 

a2.5 

a2.5 

a2.5 

a2.5

Jan.

a2.6 

a2.6 

a2.6 

*b2.6 

b2-6

b2.6 

b2.6 

b2.5 

b2.5 

b2.5

b2.5 

*b2.5 

b2.5 

b2.5 

b2.5

b2,5 

b2.5 

b2.5 

b2.5 

b2.4

b2.4 

b2.4 

b2.4 

b2.4 

bZ.4

b2.4 

b2.4 

b2.3 

b2.3 

b2.3 

b2,3

Feb.

b2.3 

*b2.3 

b2.3 

*b2.3 

b2.4

b2.4 

b2.4 

b2.4 

b2.4 

b2.4

b2.4 

b2.4 

b2.4 

b2.4

b2.4

b2.5 

b2.5 

b2.6 

b2.8 

b2,8

3.0 

3.0 

3.1 

3.1

3.1

3,1 

3.3

3.1

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

h. ......................................

ter year 1948-49 .......................

Mar.

3.1 

3.3 

3.1 

3.1 

3.1

3.1 

3.3

3.1 

3.1 *3.1

3.0 

2.6 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2,6 

2.S

2.5

2.6 

2.8 

2.5 

2.5

2.5 

2.5 

2.6 

2.5 

2.5 

2.5

Apr.

2.5 

2.4 

2.4 

2.4 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

3.0 

3.0 

27 

84 

140

115

179 

152 

130 

140

292 

542

668 

696 

736

612 

546 

728 

828 

716

Secondfoot -days

55.2 

72,7 

76.1

44,236.5

76.6 

73.6 

85.2 

7,361.7 

21,521 

9,792.6 

67.3 

71.2 

79.9

39,333.1

May

672 

820 

850 

772 

712

752 

808 

824

712 

536

469 

576 

740 

828 

636

511 

624 

576 

458 

346

270 

280 

458 

716 

915

1,080 

1,240 

1,240 

855 

692 

553

Maximum

2.1 

2.5

2.5

1,470

2.6 

3.3 

3.3 

828 

1,240 

756 

4.0 

2.6 

3.0

1,240

June

455 

455 

490 

420 

361

430 

596 

672 

716 

756

720 

720 

596 

560 

542

504 

373 

236 

132 

33

6.0 

3.0 

2.4 

2.4

2.1

2.1 

2.0 

2.0 

1.8 

1.8

Minimum

, July

1.5 

2.0 

2.2

1.5

2.3 

2.3 

2.5 

2.4 

270 

1.8 

1.6 

2.0 

2.5

1.5

1.7 

1.8 

2.4 

1.8 

1.7

1.7 

1.6 

2.0 

1.8 

1.8

2.0 

2.0 

2.2 

2.1 

2.2

2.2 

2.2 

2.2 

2.2

2.4

2.2 

2.2

2.4 

2.4 

2.4

2.5 

4.0 

2.6 

2.4 

2.0 

2.2

Aug.

2 

2 

2 

2 

2

2 

2 

2

2 

2

2 

2 

2

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

2 

2 

2

Mean

1.78 

2.42 

2.45

121

2.47 

2.63 

2.75 

245 

694 

326 

2.17 

2.30 

2.66

108

.1 

.0 

.1 

.0 

.1

.1 

,0 

.1 

.1

.2

.2 

.2 

.2 

.2

.2

.2 

.4 

.4 

.5 

.5

.5

.6 

.6 

.4 

.2

.5 

.5 

.5 

.5 

.5 

.6

Sept.

2.6 

2.8 

2.8 

3.0 

3.0

2.8 

2.8 

2.8 

2.6 

2.6

2.8 

2.8 

2.6 

2.6 

2.8

2.8 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2,5 

2.5

2.5 

2.5 

2.5

2,5 

2.5

Runoff In 

acre-feet

109 

144 

151

87,740

152 

146 

169 

14,600 

42,690 

19,420 

133 

141 

158

78,010

* Winter discharge measurement made on this day, 

a No gage-height record; discharge interpolated. 

b Stage-discharge relation affected by Ice.
KERN RIVER BASIN 193

Combined discharge, In second-feet, of Kern River and Kern River No. 3 panal n«ar KefBville, Calif,, 

water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

I* 

15

IS 

17 

16 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

1E1 

119 

118 

119 

123

123 

119 

118 

117 

119

119 

122 

136 

147 

151

145 

140 

138 

140 

137

133 

131

130 

131 

131

130 

129 

130 

130 

134 

134

Nov.

136 

138 

137 

140

138

134 

136 

133 

130 

129

131 

131 

134 

134 

133

134 

134 

134 

132 

134

126 

126 

130 

138 

136

134 

124 

118 

134 

126

pec.

130 

132 

132 

134 

122

135 

136 

146 

146

Hi

138 

140 

137 

142 

12S

125 

150- 

132 

124 

138

158 

158 

142 

106 

108

144 

172 

142 

138 

160 

162

Jan.

160 

154 

147 

109

107

145 

166 

156 

146 

114

113 

138 

154 

152 

146

130 

124 

158 

158 

150

158 

160 

158 

123 

127

152 

161 

158 

147 

154 

156

Feb.

149 

160 

151 

135

166

150 

162 

154 

146 

170

178 

153 

133 

155 

161

178 

182 

191 

192 

192

183 

186 

199 

202 

197

200 

200 

195

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

her.....................................

aber. ...................................

lendar year 1948 

ftry

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

Mar.

197 

211 

211 

215 

206

191 

207 

198 

194 

197

248 

219 

216 

222 

226

230 

242 

256 

293 

277

258 

271 

276 

252 

244

256 

276 

312 

290 

268 

264

Apr.

268 

274 

281 

302

350

366 

354 

372 

400 

446

507 

565 

598 

697 

750

727 

789 

763 

740

752

904 

1,160 

1,280 

1,300 

1,340

1,220 

1,160 

1,340 

1,450 

1,340

Secondfoot-days

4,002 

3,974 

4,296

147,309

4,480 

4,820 

7,423 

22,795 

40,908 

27,083 

8,866 

4,912 

3,495

137,034

May

1,300 

1,450 

1,480 

1,410 

1,340

1,380 

1,440 

1,450 

1,350 

1,180

1,100 

1,210 1,380- 

1,460 

1,260

1,130 

1,250 

1,200 

1,080 

976

906 

906 

1,070 

1,330 

1,530

1,690 

1,860 

1,860 

1,470 

1,300 

1,160

Maximum

151 

140 

172

2,070

166 

202 

312 

1,450 

1,860 

1,370 

473 

209 

128

1,860

June

1,060 

1,060 

1,100 

1,030 

966

1,040 

1,210 

1,290 

1,330 

1,370

1,330 

1,340 

1,210 

1,180 

1,160

1,120 

987 

852 

746 

647

570 

536 

547 

531 

510

509 

502 

474 

453 

423

July

394 

396 

473 

446 

415

383 

356 

335 

318 

305

298 

295

316 

311 

303

291 

279 

266 

257 

246

232 

222 

214 

206 

203

196 

191 

183 

178 . 

175 

184

Aug.

200 

206 

209 

202 

194

183 

176 

170 

168 

164

158 

156

152 

146 

142

141 

138 

137 

132 

128

126 

136 

175 

183 

162

148 

142 

138 

138 

134 

130

Minimum Mean

117 129 

118 132 

106 139

108 402

107 145 

133 172 

191 239 

268 760 

906 1.S20 

423 903 

175 286 

126 158 

109 116

106 375

Sept.

128 

124 

124 

124 

121

120 

120 

118 

117 

117

118 

117 

117 

116 

115

115 

113 

110 

109 

109

111 

118 

120 

116 

112

112 

113 

114 

114

114

Runoff In 

acre -feet

7,940 

7,880 

8,520

292,200

8,890 

9,560 

14,720 

45,210 

81,140 

53,720 

17,590 

9,740 

6,930

271,800
194 KERN RIVER BASIN

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 1949.

Extremes.- Maximum discharge during year, 1,560 second-feet May 27 (gage height, 7.49 

feet); minimum, 6.8 second-feet Sept. 25.

1945-49: Maximum discharge, 3..420 second-feet May 4, 1945 (gage height, 8.78 feet); 

minimum, that of Sept. 25, 1949.

Remarks - Records good. Borel Canal (see p. 198) diverts 5 miles above station; many diversions above station for irrigation.

Rating table, water year 1948-49 (gage height, in feet,

and discharge. In second-feet)

(Shifting-control method used Oct. 11 to Hov, 34, 

June 18 to July. 33)

3.7 7 4.1 30 4.6 71 5.7 370 

3.8 ' 9 4.3 37 4.8 104 6.3 65O 

3.9 11 4.3 35 5.0 146 6.9 1,030 

4.0 15 4.4 45 5.3 338 7.4 1,470

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

5

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

20

31 

32 

33 

24 

25

26 

27 

38 

39 

30 

31

Oct.

16 

16 

16 

17 

18

18 

17 

16 

16 

16

16 

16 

13 

12 

13

13 

13 

12 

13 

13

13 

12 

14 

18 

18

18 

18 

17 

17 

12 

12

Hov.

13 

15 

12 

13 

13

13 

13 

13 

13 

13

13 

16 

15 

14 

14

18 

18 

18 

18 

19

19 

19 

18 

18 

19

20 

30 

19 

19 

30

Dec.

19 

20 

30 

30 

19

19 

19 

20 

20 

19

19 

19 

19 

19 

20

30 

30 

20 

19 

30

30 

20 

20 

19 

19

19 

31 

19 

19 

19 

19

Jan.

19 

20 

19 

19 

19

19 

20 

18 

18 

18

19 

19 

21 

18 

18

18 

19 

19 

23 

26

33 

31 

31 

21 

30

30 

20 

20 

20 

20 

30

Feb.

30 

30 

30 

19 

18

17 

30 

18 

18 

18

18 

18 

18 

18 

18

18 

18 

18 

19 

30

20 

30 

31 

32 

24

23 

23 

26

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1945

h. ......................................

ter year 1948-49 .......................

Mar.

30 

33 

35 

37 

43

43 

44 

45 

44 

43

45 

46 

47 

49 

49

47 

46 

44 

43 

40

35 

35 

40 

37 

35

35 

37 

39 

36 

39 

35

Apr.

33 

32 

33 

30 

33

34 

33 

33 

35 

37

60 

103 

158 

332 

313

334 

378 

437 

374 

366

450 

661 

825 

890 

935

807 

688 

765 

939 

844

Secondfoot -days

469 

485 

604

59,282.7

614 

550 

1,255 

10,869 

23,403 

10,845 

414.8 

309.0 

355.0

50,173.8

May

753 

844 

960 

864 

801

789 

838 

877 

801 

638

514 

555 

717 

858 

765

565 

633 

639 

532 

478

374 

343 

438 

656 

890

1,110 

1,320 

1,390 

1,060 

789 

644

Maximum

18 

20 

21

1,570

26 

36 

49 

939 

1,390 

765 

23 

13 

13

1,390

June

533 

473 

504 

482 

403

410 

560 

661 

717 

765

759 

729 

661 

570 

555

527 

460 

338 

264 

164

70 

35 

41 

26 

25

24 

24 

34 

23 

31

July

30 

20 

21 

23 

21

18 

16 

14 

13 

13

13 

13 

12 

13 

15

15 

13 

13 

10 

10

9.8 

11 

11 

13 

11

9.8 

8.8 

10 

9.3 

9.6 

9.6

Aug.

11 

11 

8.8 

9.3 

9.3

9.0 

9.0 

9.6 

10 

10

9.8 

9.8 

9.8 

12 

12

9.8 

11 

11 

8.8

8.6

8.6 

8.8 

9.3 

8.6 

9.6

11 

11 

11 

11 

11 

9.8

Minimum Mean

12 15.1 

13 16.3 

19 19.5

9.3 162

18 19.8 

17 19.6 

30 40.5 

30 363 

342 755 

31 362 

8.8 13.4 

8.6 9.97 

9.4 11.8

8,6 137

Sept.

11 

11 

11 

11

11

12 

12 

13 

13 

13

13 

13 

13 

13

13

13 

13 

13 

13 

11

13 

13 

13 

9.6 

9.4

11 

12 

10 

13 

11

Runoff In 

acre -feet

930 

963 

1,300

117,600

1,320 

1,090 

2,490 

21,560 

46,430 

31,510 

823 

613 

704

99,520
KERN RIVER BASIN 195

Kern River near Bakersfield, Calif.

Location.- Water-stage recorder and wooden control, lat, 35°25'54", long. 118°56'43", in 

sw-j 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 1949.

Average discharge.- 54 years (1893-1906, 1908-49), 970 second-feet.

Extremes.- Maximum discharge during year, 2,128 second-feet May 29 (gage height, 2.87 

I'eetj; minimum, 69 second-feet Sept. 14.

1896-1949: 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 

Dy Kern uounty Land Co.

Revisions.- W 861: Drainage area. Revised figures of monthly and annual discharge for 

the period January to July 1916, superseding those published in Water-Supply Paper 441, 

are given herein. These revisions are based on correlation with monthly records for 

station near Kernville.

Discharge, in second-feet, water year October 1948 to September 1949

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

Oct.

135

131

129

131

132

133

142

135

130

132

132

137

139

137

140

153

156

157

156

158

159

155

156

154

157

159

157

152

152

152

153

Nov.

158

160

161

159

157

164

161

157

166

167

154

156

155

158

166

163

161

165

169

170

165

161

157

152

150

160

168

164

166

163

-

Dec.

171

170

173

176

176

178

182

187

189

188

186

182

186

187

194

178

172

188

180

167

182

203

203

194

161

156

185

216

185

173

189

Jan.

197

194

200

192

166

150

178

199

195

189

170

160

179

195

193

185

177

175

205

240

235

225

232

225

188

186

195

207

208

198

203

Feb.

212

203

213

209

197

211

213

239

211

194

219

241

223

. 201

212

214

227

239

252

254

255

251

247

268

283

285

293

284

-

_

-

Mar.

278

281

293

382

315

319

356

321

296

289

295

338

324

316

312

317

331

343

363

402

392

377

387

393

373

370

373

381

388

382

364

Apr.

364

360

364

371

390

407

459

464

479

517

389

656

738

783

812

883

894

949

970

932

931

1,040

1,168

1,342

1,478

1,557

1,358

1,252

1,427

1,535

-

May

1,385

1,343

1,481

1,525

1,436

1,330

1,384

1,452

1,468

1,357

1,190

1,131

1,215

1,404

1,545

1,304

1,194

1,318

1,277

1,171

1,093

1,010

980

1,083

1,331

1,604

1,766

1,942

1,945

1,584

1,358

June

1,210

1,141

1,128

1,145

1,095

1,034

1,091

1,256

1,322

1,360

1,387

1,351

1,344

1,223

1,189

1,197

1,166

1,056

932

851

755

666

588

572

557

532

511

493

475

456

-

July

429

419

407

450

456

419

390

362

331

311

300

285

276

291

282

280

277

266

241

227

214

200

198

192

183

176

172

158

160

162

158

Aug.

161

162

168

165

165

163

164

155

148

146

151

151

151

143

137

130

129

130

121

114

115

109

118

138

156

151

141

129

124

124

Sept.

117

115

114

116

113

112

108

109

105

103

110

104

98

78

179

126

115

119

112

105

99

100

104

106

105

100

98

109

107

112

1181
196 KERN RIVER BASIN

Monthly discharge, in seoond-feet, of Kern River near Bakerafield, Calif.

Month

November . , . 4

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

Calendar year .......................

Marclt. ...................................... April. ...................................... " __

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

Water year 1915-16 .......................

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

Calendar year 1948 .......................

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

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

Water year 1948-49 .......................

Second** 

f cot-days

4,491 

4,833 

5,657

166,126

6,041 

6,550 

10,656 

25,469 

42,606 

29,083 

8,672 

4,377 

3,298

151,733

Maximal

162 

175 

223

2,206

254 

300 

673 

1,595 

2,128 

1,481 

479 

184 

223

2,128

Minimum

122 

149 

137

46

131 

174 

277 

358 

966 

449 

150 

106 

69

69

, 1915-16, 1948-49

Mean

235 

250

314

2,630 

2,240 

5,480 

6,670 

5,710 

4,500 

2,470 

923 

568

2,660

14S 

161 

182

454

195 

234 

344 

849 

1,374 

969 

280 

141 

110

*1 6,

Runoff in 

acre-feet

14,400 

14,900 

19,300

_

162,000 

129,000 

337,000 

397.00Q 

351,000 

268,000 

152,000 

56,800 

33,800

1,940,000

8,910 

9,590 

11,220

329,500

11,980 

12,990 

21,140 

50,520 

84,510 

57,690 

17,200 

8,680 

6,540

301,000

Note.- Figures of maximum ana minimum discharge as shown for each month are instsntaneous values.
KERN RIVER BASIN 197

Kern River No, 3 Canal near Kernville, Calif.

Location.- Water-stage recorder, lat. 35 e 54', long, liS'SS 1 , in NE£ sec. 25, T. 23 S,, R. 

32 E., 4 miles downstream from intake an4 12 miles north of Kernville. Altitude of 

gage, about 3,590 feet (from topographic map).

Records available.- March 1921 to September 1949. 

Average discharge.- 28 years, 364 second-feet.

Extremes.- Maximum daily discharge during year, 641 second-feet May 10; minimum daily, 

103 second-feet Dec. 24.

1921-49: Maximum daily discharge, 639 second-feet May 28, 1938; no flow at times.

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

good. Canal diverts from left bank of Kern River in sec. 12, T. 23 S,, R. 32 E. Water 

is used for power and returned to river 8 miles below station.

Cooperation.- Water-stage recorder graph and 13 discharge measurements, furnished by

Boutnern California Edison Co., obtained in -connection with a Federal Power Commission 

project.

discharge, in second-feet, v*later year October 194ft to September 1949

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.

119 

117 

116 

117 

12O

121 

117 

116 

115 

116

117 

120 

124 

145 

149

143 

138 

136 

138 

135

131 

129 

128 

129 

129

128 

127 

128 

a!28 

8132 

a 132

Nov.

al34 

a!36 

a!35 

al38 

a!36

132 

134 

131 

128 

127

129 

129 

132 

132 

a!31

a!32 

a!32 

a!32 

129 

131

124 

124 

a!28 

a!35 

134

131 

121 

8116 

a!32 

a!24

Dec.

a!27 

a!29 

150 

131 

120

133 

134 

144 

144 

139

136 

138 

135 

139 

123

123 

148 

130 

121 

136

156 

156 

140 

8103 

a!05

a!41 

3169 

a!40 

a!36 

a!57 

8159

Jan.

alB7 

a!51 

144 

106 

104

142 

163 

154 

144

111

110 

136 

152 

150

144

128 

121 

156 

156 

148

156 

158 

156 

121 

125

150 

159 

156 

145 

152 

154

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Feb.

147 

158 

149 

133 

164

148 

160 

152 

144 

168

176 

151 

131 

153 

159

175 

180 

188 

189 

189

180 

183 

196 

199 

194

197 

197 

192

nber. ...................................

lendar year 1948

u&ry .... * « »

St......................................

ter ye»,r 1948-49 .......................

Mar.

194 

208 

208 

212 

203

188 

204 

195 

191 

194

245 

216 

213 

220 

224

228 

239 

254 

290 

274

256 

268 

273 

249 

241

253 

274 

309 

287 

265 

262

Apr,

266 

272 

279 

300 

348

364 

352 

369 

398

444

504 

562 

571 

613

610

612 

610 

611 

610 

612

612 

616 

617 

607 

604

612 

612 

612 

624 

628

Second, 

foot -days

3,940 

3,909 

4,222

103,072

4,409 

4,752 

7,337 

15,451 

19,393 

17,279 

8,800 

4,846 

3,410

97,748

May

632 

632 

631 

635 

633

633 

634 

629 

639 

641

626 

630 

637 

637 

624

615 

630 

626 

618 

630

636 

626 

612 

618 

612

614 

619 

616 

612 

607 

609

Maximum

149 

138 

169

621

163 

199 

309 

628 

641 

617 

471 

207 

125

641

June

608 

607 

606 

607 

60S

608 

612 

614 

615 

612

614 

617 

616 

616 

617

617 

614 

616 

614 

614

564 

533 

545 

529 

508

507 

500 

472 

451 

421

July '

392 

394 

471 

444 

413

381 

354 

333 

316 

303

296 

293 

314 

309 

301

289 

277 

263 

255 

244

230 

220 

212 

204 

201

193 

187 

180 

176 

173 

182

Minimum

115 

116 

103

103

104 

131 

188 

266 

607 

421 

173 

124 

106

103

Aug.

198 

204 

207 

200 

192

181 

174 

16,8 

164 

162

156 

154 

150 

144 

140

139 

136 

135 

130 

126

124 

133 

172 

181 

160

146 

14Q 

136 

136 

131 

127

Mean

127 

130 

136

28S

142 

170 

237 

515 

626 

576 

284 

156 

114

268

Sept.

125 

121 

121 

121 

118

117 

117 

115 

114 

114

115 

114 

114 

113 

112

U2 

110 

107 

106 

106

108 

115 

117 

114 

110

110 

109 

111 

112 

112

Runoff In 

aere-feet

7,810 

7,750 

8,370

204,400

8,750 

9,430 

14,550 

30,650 

38,470 

34,270 

17,450 

9,61p 

6,760

193,900

a No gage-height record; discharge computed on basla of recorded range in stage and record of flow 

through Kern River Ho. 3 powerhouse.

947808 O - 51 T 14
198 KERN RIVER BASIN 

orel Canal at Tilley Creek, Calif.

Location.- Water-stage recorder, lat. 35°42', long. 118°27", in NW^- sec. 4, T. 26 S., R. 

33 E., at point where canal crosses Tilley Creek, 0.8 mile south of Kernville. Altitude of gage, about 2,570 feet (from topographic map).

Records available.- January 1910 to September 1914, October 1925 to September 1949. 

Average discharge.- 24 years (1925-49), 357 second-feet.

Extremes.- Maximum daily discharge during year, 593 second-feet June 11-13, minimum daily, 

ya second-feet Sept. 21.

1925-49: 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 13 discharge measurements, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power Commision 

project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

28 

29 

30 

31

Oct.

116 

112 

111 

111 

114

118 

113 

110 

109 

112

113 

114 

119 

133 

145

140 

135 

133 

135

135

128 

127 

127 

128 

128

126 

126 

126 

130 

131 

135

Ooto 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Nov.

135 

135 

138 

138 

138

138 

139 

135 

130 

130

130 

131 

135 

137 

135

133 

135 

133 

133 

139

135 

133 

138 

147 

146

143 

133 

125 

140 

137

Dec.

134 

139 

140 

143 

134

147 

151 

154 

156 

150

148 

150 

146 

150 

139

130 

157 

147 

132 

147

166 

169 

170 

118

117

152 

183 

152 

144 

166 

173

Jan.

166 

166 

156 

126 

113

150 

177 

170 

163 

138

119 

147 

165 

166 

160

144 

134 

170 

179 

186

178 

180 

182 

142 

144

165 

180 

178 

167 

168 

175

Feb.

166 

175 

166 

154 

182

165 

191 

175 

162 

186

205 

180 

150 

168 

178

192 

207 

215 

218 

219

210 

210 

225 

228 

228

228 

231 

226

Month

lendar year 1948

ter year 1948-49 .......................

Mar.

228 

236 

248 

240 

247

226 

235 

236 

223 

223

270 

258 

249 

250 

256

259 

274 

288 

316 

330

298 

303 

325 

298 

281

291 

319 

356 

325 

305 

295

Apr.

295 

300 

312 

328 

382

411 

402 

422 

455 

511

548 

566 

580 

586 

58S

586 

586 

586 

587 

587

587 

587 

587 

589 

589

589 

589 

589 

589 

589

Secondfoot-days

3,840 

4,074 

 4,604

102,861

4,954 

5,440 

8,488 

15,500 

18,261 

17,052 

8,567 

4,613 

3,199

98,592

May

589 

589 

589 

589 

589

589 

589 

589 

589 

589

589 

589 

589 

589 

589

589 

587 

587 

589 

589

589 

589 

589 

589 

589

590 

59O 

590 

590 

590 

590

Maximum

145 

147 

183

589

186 

231 

356 

589 

590 

593 

464 

194 

119

593

June

589 

589 

590 

590 

592

592 

592 

592 

592 

592

593 

593 

593 

592 

592

592 

590 

590 

590 

590

590 

556 

559 

555 

533

522 

521 

485 

471

435

July

399 

389 

464 

453 

418

380 

352 

330 

311 

297

286 

282 

300 

302 

293

277 

268 

253 

241 

234

220 

211 

195 

190 

188

182 

177 

172 

1(57 

164 

172

Minimum

109 

125 

117

101

113 

150 

223 

295 

587 

435 

164 

112 

98

98

Aug.

186 

188 

194 

189 

181

173 

169 

163 

159 

158

153 

144 

142 

140 

138

135 

131 

130 

126 

117

112 

119 

147 

170 

153

140 

135 

135 

134 

. 128 

124

Mean

124 

136 

149

281

160 

194 

274 

517 

589 

568 

276 

149 

107

270

Sept.

119 

116 

114 

112 

110

110 

107 

104 

105 

107

107 

110 

114 

111 

108

108 

103 

102 

101 

99

9.8 

103 

107 

105 

101

100 

102 

103 

107 

106

Runoff In 

acre-feet

7,620 

8,080 

9,130

204,000

9,830 

10,790 

16,840 

30,740 

36,220 

33,820 

16,990 

9,150 

6,350

195,600
KERN RIVER BASIN 

South Pork Kern River near Onyx, Calif.

199

Location.- Water-stage recorder and broad-crested weir, lat. 35°44 ! , long. 118°10', in

swi* 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. 

Kecords available.- September 1911 to August.1914, January 1919 to September 1942, August

1947 to September 1949.

Average discharge.- 23 years (1911-13, 1919-25, 1929-42, 1948-49), 105 second-feet. 

extremes.- Maximum discharge during year, 434 second-feet probably Apr. 13 (gage height,

3.56 feet); minimum, 2.2 second-feet, July 28.

1911-14, 1919-42, 1948-49: Maximum discharge, 3,450 second-feet Mar. 2, 1938 (gage

height, 6.69 feet), from rating curve extended above 1,900 second-feet; maximum gage

height, 7.1 feet Jan. 25, 1914, former site, same datum; no flow several days in July

and-August 1929 and September 1934. 

Revisions.- The maximum discharge for the water year 1948 has been revised to 340 secondfeet Apr. 18 (gage height, 3.32 feet), superseding figure published in Water-Supply

Paper 1121. 

Remarks.- Records excellent except those for period of no gage-height record, which are

rair. Lowell and Thomas irrigation ditr.hes divert above station; combined capacity,

about 5 second-feet.

Rating table, water year 1948-49 (gage height. In feet, 

and discharge, In second-feet).

1.3 2.7 1.7 18 2.5 108 

1.4 4.9 1.9 33 2.8 171 

1-.5 8.6 2.1 52 3.1 260 

1.6 13 2.3 77 3.4 370

Discharge, In second-feet, water year October 1948 to Septemberl949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.2 

8.2 

8.6 

8.6 

9.5

9.5 

9.0 

9.0 

9.0 

9.0

9.5 

9.9 

10 

12 

12

14 

13 

12 

13 

12

12

12 

12 

12 

13

13 

13 

13 

13 

14 

14

Nov.

14 

14 

15 

16 

15

14 

14 

14

14 

13

11 

11 

12 

12 

13

13 

14 

13 

13 

12

12 

11 

11 

12 

13

14 

11 

9.5 

11 

11

Dec.

12 

12 

13 

14 

9.9

12 

13 

14 

14 

14

14 

15 

14 

14 

12

11 

14 

13 

8.6 

11

14 

16 

12 

6.0 

6.9

11 

14 

11 

11 

13 

14

Jan.

14 

14 

12 

7.6 

9.3

14 

16 

14 

14 

12

9.1 

11 

13 

14 

12

12 

12 

14 

15 

18

17 

17 

18 

13 

16

18 

17 

19 

21 

22 

22

Feb.

22 

24 

22 

20 

27

22 

27 

22 

22 

25

30 

24 

18 

22 

25

26 

28 

31 

34 

35

34 

34 

37 

38 

35

36 

38

36

Month

Ooto 

Nove 

Deoe

ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 .

ter year 1948-49 .......................

Mar.

39 

41 

40 

40 

38

38 

38 

37 

35 

37

39 

38 

37 

37 

38

39 

41 

43 

47 

48

49 

54 

55 

45 

40

45 

50 

60 

55 

50 

50

Apr.

50 

55 

55 

60 

65

60 

55 

60 

70 

80

150 

250 

350 

300 

270

250 

230 

220 

212 

206

234 

260 

244 

218 

197

169 

152 

139 

134 

128

Secondfoot-days

347.0 

382.5 

383.4

12,318.1

457.0 

794 

1,343 

.4,923 

2,511 

641.1 

157.5 

160.2 

171.8

12,271.5

Peak discharge (base, 180 sec. -ft.).- Probably Apr. 13

May

122 

121 

112 

103 

97

92 

88 

83 

80 

73

67 

65 

65 

65 

70

77 

118 

145 

100 

94

90 

80 

70 

64 

59

56 

52 

51 

51 

50 

51

Maximum

14 

16 

16

241

22 

38 

60 

350 

145 

51 

6.0 

7,1 

6.8

350

June

51 

47 

41 

39 

38

37 

35 

35 

32 

30

28 

27 

25 

20

17

16 

16 

16 

16 

16

13 

5.6 

4.7 

5.3 

5.3

5.6

5.3 

4.9 4.7 ' 

4.7

July

4.2 

4.0 

4.7 

4.5 

5.6

4.9 

'4.9 

4.9 

4.9 

4.7

4.7 

4.7 

4.9 

4.9 

4.9

5.3 

4.9 

5.3 

5.3 

5.6

5.6 

6.0 

6.0 

6.0 

6.0

6.0 

6.0

4.9 

4.2 

4.5 

4.5

Aug.

4 

4 

4 

4 

4

4 

5 

5 

5 

4

4 

4 

4 

4 

4

4 

5 

4 

3 

3

4 

4 

5 

5 

4

7 

7 

6 

6 

6 

6

Minimum Mean

8.2 11.2 

9.5 12.8 

6.0 12.4

1.5 33.7

7.6 14.7 

18 28.4 

35 43.3 

50 164 

50 81.0 

4.7 21.4 

4.0 5.08 

3.6 5.17 

3.8 5.73

3.6 33.6

.9 

.9 

.9 

.9 

.9

.9 

.3

.3 

.3 

.7

.5 

.7 

.9 

.9 

.9

.9 

.3 

.7 

.6 

.8

.0 

.2 

.4 

.3 

.9

.1 

.1

.8 

.8 

.4 

.0

Sept.

6.0 

5.6

4.4 

3.8 

4.0

4.2 

4.5 

4.5 

4.9

4.9

4.9 

4.9 

5.6 

6.0 

6.0

6.0 

5.6 

6.0 

6.0 

6.4

6.4 

6.8 

6.8 

6.8 

6.8

6,8 

6.8 

6.3 

 6.8 

6.8

Runoff In 

acre-feet

688 

759 

760

24,450

906 

1,570 

2,660 

9,760 

4,98O 

1,270 

312 

318 

341

24,320

(time unknovn) 434 sec. -ft.; Apr. 22 (4 to

5 p.ra.J 310 sec.-ft.; May 17 (12 p.m.) 184 sec.-ft.

Note.- No gage-height racord Mar. 23 to Apr. 18j discharge computed on basis of weather records and 

records for stations on nearby streams.
200 KERN RIVER BASIN

South Pork Kern River at Isabella, Calif. 

.Location.- Water-stage recorder, lat. 35"4Q', long. 118°S8', in Nw£ sec; 20, T. 26 S., R.

33 is., 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 1949.

Average discharge.- 20 years (1929-49), 106 second-feet.

Extremes.- Maximum discharge during year, 121 second-feet Apr. 24 (gage height, 3.36 feet); 

minimum, 2.6 second-feet Oct. 12.

1929-49: Maximum discharge, 4,100 second-feet Feb. 7, 1937, from rating curve extended above 1,600 second-feet, Verified by ve!6city-area study; maximum gage height, 

6.99 feet Mar. 9, 1943; jilnimum, 0.3 second-foot July 26, 1931.

Remarks..- Records fair. Many diversions above station for irrigation; considerable Return

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.

11 

11 

11 

12 

12

12 

12 

12 

12 

13

13 

10 

8.1 e.i

8.7

a. s

8.3 e.i

7.6 

7.6

7.2 

6.6 

9.4 

12 

12

12 

12 

12 

11 

6.6 

6.6

Nov.

7.8 

8.6 

6.4 

6.4 

6.6

6.6 

6.2 

6.2 

6.4 

6.8

6.6 

9.2 

8.1

e.i

8.7

13 

13 

13 

14 

14

14 

14 

14 

13 

13

13 

14 

13 

14 

13

Dec.

14 

14 

14 

13 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

15 

14 

14

14

14 

14 

13 

13 

13

13 

13 

12 

13 

13 

13

Jan.

13 

13 

13 

13

13

13 

13 

IS 

12 

12

13 

13 

14 

12 

11

12 

13 

13 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

13 

13 

13

Feb.

13 

13 

13 

13 

13

13 

14 

13 

13 

13

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

15 

16 

21

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mftv

June 

July 

Augu 

Sept

Wa

ber

LentJar year 1948

ter year 1948-49 .......................

Mflr.

24 

25 

26 

28 

34

31 

34 

35 

35 

34

36 

38 

41 

41 

39

36 

34 

32 

28 

22

20 

19 

18 

18 

17

17 

17 

17 

17 

17 

16

Apr.

15 

15 

15 

12 

11

13 

13 

12 

13 

14

12 

12 

13 

14 

15

39 

47 

54 

41 

35

36 

37 

61 

100 

79

66 

46 

36 

31 

27

Secondfoot -days

313.4 

310.9 

424

6,649.0

407 

393 

846 

936 

646 

344.3 

201.1 

187.9 

281.5

5,293.1

Peak discharge (base, 130 sec. -ft.).- Net peak above ba

May

26 

23 

22 

22 

20

19 

14 

12 

12 

13

13 

15 

14 

16 

16

17 

18 

20 

26 

30

31 

34 

30 

30 

27

24 

28 

24 

19 

17 

16

Maximum

13 

14 

15

143 ~t

14 

21 

41

loo

34 

17 

11 

8.9 

12

100

June

17 

15 

15 

15 

IS

16 

16 

12 

9.6 

7.5

8.9 

9.0 

7.6 

7.4 

8.1

7.4 

7.8 

10 

13 

11

11 

11 

11 

11 

12

12 

12 

12 

12 

12

July

11 

11 

11 

11 

10

6.4 

5.8

s:e

5.6 

6.0

5.2 

4.9 

4.6 

4.6 

7.6

7.0 

6.1 

6.4 

4.6 

4.6

4.6 

6.2 

6.8 

7.4 

6.O

5.4 

4.8 

5.8 

4.6 

4.9 

5.6

Aug.

e.i

7.1 

4.6 

4.9 

4.8

4.3 

4.4 

5.1 

6.2 

5.4

4.9 

4.8 

5.2 

8.9 

7.8

5.6 

8.7 

7.2 

4.1 

4.4

4.6 

4.4 

4.6 

4.3 

6.2

6.1 

8.3 

8.9 

7.8 

7.6 

6.6

Sept.

7.8 

6.3 

7.8 

9.4 

8.5

10 

10 

10 

9.8 

10

11 

11 

10 

11 

11

11 

12 

12 

9.3 

9.8

12 

11 

10 

6.2 

5.6

6.6 

8.2 

6.4 

8.4 

7.0

Kini, Mean *£«.£

6.6 10.1 622 

6.2 10.4 617 

12 13.7 841

5.5 18.2 13,190

, 11 13.1 807 

IS 14.0 780 

16 27.3 1,880 

11 31.2 1,860 

12 BO. 9 1,290 

7.4 11.5 683 

4.6 6.49 399 

4.1 6.06 373 

5.8 9.38 558

4.1 14.5 10,510

se.

TULARE LAKE BASIN 

Tulare Lake in Kings County, Calif.

Location.- Water-stage recorder, lat. 36°Q5', long. 119°49', at northeast corner sec. 29, 

I1 . 'lir'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 1949. March 1906 to September 1920 (incompletej at "several other sites, at different datum.

Extremes,.- 1906-49: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or practi-

 caiiy" so during parts of 1906, 1914, 1915-16, 1919, 1937, 1946; lake dry during entire 

years 1920-22, 1924^-36, 1947, 1948, 1949.

Lake elevation of June 27, 28, 1941, was highest known since about 1890. 

Remarks.- Lake was dry entire water year of 1948-49. Tulare Lake receives water from Kingsi

 iiaweah, 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.
TULARE LAKE BASIN 201

White River near Ducor, Calif.

Location.- Water-stage recorder, lat. 35°49', long. 118°56', in NEir sec, 27, T. 24 S., R. 

a a K.'",' 500 feet downstream from bridge at Gilliam T?anch, 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 1949.

Extremes.- Maximum discharge during year, 22 second-feet Mar, 23 (gage height, 1.97 feet); 

no now for several months,

1944-49: Maximum discharge, 1,300 second-feet Feb. 2, 1945 (gage height, 6.35 feet, 

site and datum then in use), by slope-area method; no flow during several months each 

year.

Flood of Mar. 9, 1943, estimated at 2,300 second-feet by Bureau of Reclamation.

Remarks.- Records fair. Small diversion above station for irrigation. 

Cooperation.- One discharge measurement furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

7, 

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 

0

0 

0 

.4 

.6 

.8 

.8

Feb.

O.B 

.9 

1.0

1.2 

1.2

1.3 

1,7 

3,1 

3.2 

2.7

3.0 

4.3 

3.8 

2.7 

2.3

2.1 

2,3 

2.4 

2.7 

2.8

3.0 

3.0 

3.2 

3.4 

4,3

4,8 

5.9 

6.4

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MAW

Juqe 

July 

Augu 

Sept

Wa

nber, ...................................

lendar year 1948

ter year 1948-4,9 .......................

Mar.

5.4 

4.6 

4.6 

4.6 

4.8

4.8 

5.3 

9.5 

7.5 

6.1

7.5 

9.8 

6.8 

5.4 

4.B

4.1 

*tl 

3.6 

4.5 

8,3

6,4 

5,6 

16 

15 

11

9.1 

8.3 

8.3 

8.3 

6.7 

6.1

Apr.

5,4 

5.1 

4.8 

4.3 

4.6

5.4 

5.9 

5.9 

5.6

5.9

6.8 

7,2 

7.9 

7.9 

7.9

7.2 

7.5 

6.8 

5.9

5.6

6.1 

7.5 

8.3 

7.9 

8.3

7.9 

6.8 

6.4 

6.1 

5.9

Second- 

,foot-d«ys

0 

0 

0

822.4

2.6 

79.5 

216.9 

194.8 

131.2 

8,6 

0 

0 

0

633.6

May

5.4

5.6 

5,4 

5.4 

4.8

4.6 

4.3 

3.8 

3.6 

3.4

3.0 

2.7 

2,5 

4.3

6.1

7.5 

7,9 

6.8

5.6 

5.6

5.4 

4.8 

4.1 

3.4 

3.0

2.7 

2.1 

1.9 

1.8 

1.8 

1,9

Maximum

0 

0 

0

55

.8 

6.4 

16 

8.3 

7.9 

1.9 

0 

0 

0

16

June

1.9

i.8 

1.5 

1.1 

.8

,6 

.4 

.3 

.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

Q

0

0 

.8 

3.6 

4.3 

1.8 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

2.E5

.08 

2.84 

7,00 

6.49 

4.23 

.29 

0 

0 

0

1.74

Sept.

Runoff in 

acre-feet

0 

0 

0

1,630

5.E 

158 

430 

386 

260 

17 

0 

0 

0

1,260

discharge (baae f 50 see.-ft,)/- HO peak above base.
202 TULARE LAKE BASIN

North Fork 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.

Records available.- November 1939 to September 1949. January 1909 to December 1912 at 

site 2 miles upstream.

Extremes.- Maximum discharge during year, 126 second-feet Apr. 22 (gage height, 4.09 

reetJ; minimum, 0.1 second-foot Sept. 2, 3.

1939-49: 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, that of Sept. 2, 3, 1949.

Remarks.- Records fair. Pacific Gas & Electric Co. conduit near Springville diverts 

2.5 miles above station (see p. 204).

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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

£9 

30 

31

Oct.

0.7 

.6 

.7 

.8 

.9

1.0 

.8 

.8 

.7 

.6

.7 

.9 

1.0 

1.0 

1.0

.9 

.8 

.8 

.9 

.9

.8 

.7 

.6 

3.1 

1.3

.9

.8 

.8 

.8 

.8 

.8

Nov.

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

1.4 

3.3 

1.2

.9

.8 

.8 

.8 

.8

Dec.

0.7 

.7 

.8 

1.2 

1.1

1.2

1.1 

1.1 

1.1

1.1 

1.0 

1.0 

1.7 

1.4

1.2 

1.6 

1.4 

1.2 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.8 

1.5 

1.5 

1.5 

1.6

Jan.

1.5 

1.8 

1.5 

1.2 

1.1

1.6 

1.6 

1.6 

1.4

1.3 

1.3 

1.3 

1.3 

1.3

1.1 

1.1 

1.3 

4.4

13

5.2 

2.8 

2.4 

1.9 

1.6

1.5 

1.5 

1.5 

1.6, 

1.6 

1.6

Feb.

1.6 

1.6 

1.6 

1.6 

1.9

2.5 

2.2 

2.1 

2.3

3.3 

2.8 

2.4 

2.1 

2.0

2.3 

2.8 

3.5 

4.3 

4.2

3.9 

4.0 

5.0 

5.7 

5.3

5.3 

6.4 

5.5

Month

Octo 

Hove 

Dece

Ca

Janu, 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

5.1 

6.0 

5.1 

6.0 

5.9

6.0 

6.0 

5.0 

5.1

9.S 

6.8

5.5 

5.1

5.0

4.8 

4.6 

4.3 

6.2 

6.4

5.3 

7.4 

9.9 

7.1 

6.2

6.2 

6.4 

7.1 

6.2 

5.7 

5.3

Apr.

4.8 

4.6 

4.5 

4.6 

4.8

4.6 

4.5 

4.0 

14

25 

34 

43 

47 

41

39 

45 

35 

28 

32

59 

82 

86 

85 

80

63 

50 

65 

60 

48

Secondfoot-clays

27.9 

27.6 

37.4

3,994,6

65.1 

90.0 

186.1 

1,107.2 

792.1 

42.6 

27.9 

11.5 

15.8

2,431.2

May

46 

52 

45 

32 

31

36 

33 

30 

19

18 

24 

30 

36 

34

26 

24 

26 

24 

19

16 

15 

18 

19 

19

22 

21 

15 

11 

7.9 

6.2

Maximum

3.1 

3.3 

1.8

232

13 

6.4 

9.9 

86 

52 

4.5 

3.2 

.9 

1.1

86

June

4.5 

2.4 

2.1 

1.9 

1.9

.1 

.8 

.6 

.5 

.4

.3 

.2 

.2 

.2

.1

.2 

.2 

.2 

.3 

.2

.8 

.8 

.8 

.8 

.8

1.0

1.0 

1.1 

1.1 

1.1

July

1.1 

1.1 

.9 

1.0 

1.0

1,1 

1.1 

1.1 

1.0 

1.0

1.0 

1.2 

3.2 

1.2 

.5

.4 

.5 

.6 

.7 

.8

.8 

.8 

.6 

.6

.6

.6 

.6

.7 

.7 

.7 

.7

Minimum

0.6

" .8 

.7

.6

1.1 

1.6 

4.3 

4.0 

6.2 

.8 

.4 

.2 

.1

.1

Aug.

0.6 

.6 

.6 

.6 

.4

.3 

.3 

.3 

.3 

.2

.2 

.2 

.4 

.9 

.8

.4 

.3 

.2 

.2 

.2

.3

.4 

.5

.4 

.2

.3 

.3 

.3 

.3 

.3 

.2

Mean

0.90 

.92 

1.-21

10.9

2.10 

3.21 

6.00 

36.9 

25.6 

1.42 

.90 

.37 

.53

6.66

Sept.

0.2 

.1 

.1 

.4 

.4

.5 

.6 

.5 

.5 

.6

.6 

.6 

. -6 

.6 

.6

.6 

.6 

.6 

1.0

1.1

.5 

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5

Runoff In 

acre-feet

55 

55 

74

7,920

129 

179 

369 

2,200 

1,570 

84 

55 

23 

31

4,820
TITLARK LAKE BASIN 

Tule River near Porterville, Calif.

203

Location.- Water-stage recorder, lat. 36°05', long. 118°55 I , in NWtr sec. 25, T. 21 S., 

 K. aa 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 1949.

Average discharge.- 48 years, 143 second-feet.

Extremes.- Maximum discharge during year, 379 second-feet Apr. 23 (gage height, 3.89 

reet); minimum, 0.1 second-foot Aug. 2, 3, 13, 14, Sept. 3, 4, 7-30.

1901-49: 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 part of 1934, 1935, 1947.

Remarks.- Records good. Several small diversions above station for irrigation. Power 

is developed on Middle Fork and tributaries.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

S

6 

7

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.4 

.5

.5 

.5 

.4

.3 

.3

.5

.8 

1.0 

1.2 

1.5

1.4 

1.0 

1.4 

1.4 

1.3

1.3 

1.4 

1.5 

1.5 

1.6

1.8 

1.8 

1.6 

1.9 

2.6 

2.7

Nov.

3.2 

3.0 

2.7 

3.4 

3.6

3.6 

3.6 

3.6 

3.6 

3.9

5.2

5.2 

5.9 

7.5 

7.5

8.4 

8.8 

8.8 

8.4 

8.4

9.7 

10 

11 

8.8 

12

11 

I?. 

13 

12 

12

Dec.

12 

11 

14 

23 

20

20 

23 

22 

22 

23

22 

21 

21 

26 

29

25 

25 

29 

27 

26

25 

25 

26 

25 

25

26 

51 

39 

37 

35 

35

Jan.

35 

41 

37 

33 

32

33 

32 

34 

33 

32

30 

33 

33 

32 

32

32 

31 

32 

43 

174

73 

63 

74 

55 

48

46 

44 

43 

42 

41 

40

Feb.

40 

40 

43 

42 

43

43 

56 

58 

48 

47

51 

60 

48 

46 

45

44 

46 

51 

54 

59

58 

55 

58

63 

70

65

83 

76

Month

Octo 

Move 

Dece

Ca

Janu 

Febn 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ftry

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

ter year 1948-49 .......................

Mar.

70 

72 

79 

83 

116

87 

98 

120 

98 

89

160 

130 

106 

96 

98

100 

102 

104 

125 

163

126 

128 

193 

147 

126

117 

114 

122 

117 

106 

100

Apr.

99 

93 

93 

99

126

149 

145 

149 

137 

177

220 

245 

261

273 

273

231 

261 

238 

208 

197

227 

297 

320 

307 

292

258 

222 

229 

229 

199

Secondfoot-days

3S.O 

219.8 

790

25,581.0

1,383 

1,492 

3,492 

6,254 

4,599 

1,013.8 

44.0 

8.8 

4.3

19,335.7

May

185 

195 

191 

168 

156

158 

156

147 

147

132

125 

128 

135 

158 

185

175 

168 

175 

171 

171

156 

145 

140 

138 

128

125 

122 

116 

108 

102 

93

Maximum

2,7 

13 

51

1,670

174 

83 

193 

320 

195 

90 

6.7 

.5 

.3

320

June

90 

85 

78 

72 

63

55 

51 

47 

42 

40

37 

35

33 

30 

25

23 

21 

19 

20 

20

19

17 

17 

15 

13

12 

9.7 

8.8 

8.4 

7.9

July

Minimum

0.3

2.7 

11

.1

30 

40 

70 

93 

93 

7.9 

.2 

.2 

.1

.1

6.7 

3.9 

3.9 

3.9 

3.4

2.6 

2.4

2.1 

1.6 

1.5

1.5 

1.3 

.9 

.8 

.8

.8 

.8 

.6 

.6 

.5

.5 

.6 

.5 

.4 

.2

.2 

.2 

.2 

.2 

.2 

.2

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.2 

.2

.2 

.4 

.5 

.4 

.4

.5 

.5 

.4 

.4 

.3

.3 

.3 

.3 

.3

.3 

.3

Mean

1.13 

7.33 

25.5

69.9

44.6 

53.3

113 

208 

148 

33.8 

1.42 

.28 

.14

53.0

Sept.

0,3 

.2 

.2 

.2 

.2

.2 

.2 

.2

.2 

.2

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1

a

.1 .1 

.1 

.1 .1

.1 

.1 .1 

.1 .1

Runoff in 

acre-feet

69 

436

1,570

50,740

2,740 

2,960 

6,930 

12,400 

9,120 

2,010 

87 

17 

8.5

38,350

Peak discharge (base, 500 see.-ft.)..- No peak above base.
204 TULARE LAKE BASIN

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

Location.- Water-stage recorder, lat. 36°12', long. 118°39', in NW£ Sec; 18, T. 20 S.,

 K; ai"K., 0.5 mile downstream from intake and 10 miles northeast of Springville. 

Altitude of gage, about 4,000 feet (from topographic map).

Records available.- October 1939 to September 1949. 

Average discharge.- 10 years, 30.5 second-'feet.

Extremes.- Maximum daily discharge'during year, 68 second-feet Apr. 14, 15; minimum

 daily", 9.0 second-feet Oct. 24. 1940-49: Maximum daily discharge, 70 second-feet Apr. 16, 1948; no flow Jan. 10, 

1945.

Remarks.- Records good. Conduit diverts -from left bank of North Fork of Middle Fork

 TuTiTHiver in sec. 18, T. 20 S., R. 31 E. Water is used for power development at 

Tule River powerhouse of Pacific Gas & Electric Co., 3.5 miles downstream and is then 

returned to river.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob-

 tained in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1948 to September 1949

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

Oct.

12 

13 

12

12 

13

13 

12 

12 

12 

12

12 

IE 

12 

13 

13

12 

IE 

12 

12 

12

12 

12 

IS 

9.0 

11

11 

12 

12 

12 

12 

IE

Nov.

12 

12 

12 

12

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

10 

9.8 

12

12 

a!2 

a!2 

a!2 

812

Dec.

al2 

a 12 

a 12 

a!3 

a!3

al3 

a!3 

a!3 

a!3 

a!3

a!3 

a!3 

a!3 

a!4

a!3

a!3 

a!4 

a!3 

a!3

a!3

13 

13 

13 

13 

13

13 

14 

13 

14 

14 

14

Jan.

13 

14 

13 

12 

13

13

13 

13 

12 

12

13 

13 

13 

12 

12

12 

12 

13 

12 

9.8

14 

14 

14 

13 

13

14 

13 

14 

14 

14 

14

Feb.

14 

14 

14 

14

14

14 

13 

15 

14 

15

15 

.14 

13 

14 

14

15 

17 

19 

19 

19

17 

19 

21 

20 

19

19 

18 

18

Month

Octo 

Hove 

Deee

ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

sept

Wa

mber. ...................................

lendar year 1946

ter year 1948-49 .......................

Mar.

18 

19 

19 

19 

19

18 

19 

18 

17 

19

25 

21 

20 

22 

23

24 

26 

29 

31 

28

26 

27 

25 

23 

22

22 

24 

26 

25 

22 

22

Apr.

22 

22 

24 

32 

42

43 

42 

41 

48

60

67 

67 

67 

68 

68

67 

67 

67 

67 

67

67 

67 

66 

65 

85

65 

65 

65 

65 

65

Secondfoot -days

371.0 

355.8 

406

9,401.8

400.8 

451 

698 

1,703 

2,022 

1,032 

511 

387 

328.6

8,664.2

May

65 

65 

65 

65 

65

65 

65 

65 

65 

65

66 

66 

66 

66 

66

66 

66 

66 

66 

65

65 

66 

67 

67 

67

67 

67 

66 

64 

61 

56

Maximum

13 

12 

14

70

14 

21 

31 

68 

67 

55 

21 

14 

12

68

June

55 

54 

52 

SO 

48

47 

46 

43 

41 

39

38

36 

35 

33 

32

31 

30 

29 

29 

28

26 

26 

25 

24 

23

23 

23 

22 

22 

22

July

21 

21 

20 

19 

19

19 

19 

18 

18 

17

17 

16 

IS 

17 

17

16 

16 

15 

15 

15

IS 

15 

15 

15

Is

15 

15 

14 

14 

14 

14

Minimum

9.0 

9.8 

12

9.0

9.8 

13 

17 

22 

56 

22 

14 

11 

9'. 6

9.0

Aug.

14 

13 

13 

13 

13

13 

13 

13 

13 

13

14 

13 

12 

12 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

11

Mean

12.0 

11.9 

13.1

25.7

12.9 

16.1 

22.5 

56.8 

65.2 

34.4 

16.5 

12.5 

11.0

23.7

Sept.

12 

11 

11 

11 

11

11 

11 

10 

11

11

11 

11 

11 

11 

11

11 

11 

11 

9.6 

11

11 

11

11 

11

11 

11 

11 

11 

11

Runoff In 

acre-feet

736 

706 

80S

18,650

795 

895 

1,380 

3,380 

4,010 

2,050 

1,010 

768 

65£

17,190

a NO gage-height record; discharge computed on basis of unpublished output record for Pacific das 

& Electric Co.'s Tule River powerhouse.
TULARE LAKE BASIN 205

South Fork Tule River near Success, Calif.

Location.- Water-stage recorder, lat. 36°03', long. 118°51' , in NWtr sec, 4, T. 22 S., R. 

29 E., 4 miles southeast of Success and 5 miles upstream from mouth. Altitude of gage, 

about 750 feet (from topographic map).

Drainage area.- 106 square miles.

Records available.- June 1930 to September 1949.

Average discharge.- 19 years, 42.8 second-feet.

Extremes.- Maximum discharge during year, 126 second-fee^; Mar. 23 (gage height, 2.24 feet); 

no"now for several months.

1930-49: 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, 194fa.

Remarks.- Records good. Several diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September '1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Get.

Octo 

Move 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Nov.

O 

'0 

0 

0 

0

.1 

.1 .1 

,1 a.i

3.1

e.l 

a. 2 

a. 2 

a. 2

a. 2 

a, 2 

.2 

.2 

.3

,3 

.3

.4 

.5 

..4

.4 

.8 

1.7 

1,7 

1.9

Dec.

1.9 

1.9 

2.1 

3.8 3,8

3.8 

3.8 

3.8 

4.0 

3.8

3.8 

3.6 

3.6 

4-2

4.5

3.8 

3.8 

4.5 

4.0 

3.8

3.8 

3.2 

3.2 

3.1 

3,1

3.6 

12 

10 

7.3 

5.6 

3.4

Month

Jan.

4,0 

5.0 

4.5 

3.4 

3.2

4.2 

5.0 

5.0 

5.0 

4.7

4.0 

7,3 

8.8 

8.3 

8.3

8.3 

7.8 

6.4 

7.2 

30

16 

14 

17 

12 

11

10 

10 

9.7 

9.7 

9.7 

9.7

Feb.

9.2 

9.2 

9.7 

9.2 

9.2

11 

14 

14 

12 

11

14 

16 

11 

10 

11

11

u13 

14 

15

15 

15 

18 

20 

25

22 

29 

24

Lendar year 194E

ter year 1948-49 .......................

Mar.

22

24 

29 

30 

34

27 

39 

43 

35

31

69 

52 

40 

36 

36

38 

38 

38 

49 

56

44 

51 

84 

57 

49

48 

46 

52 

47 

42 

39

Apr.

37 

35 

34 

36 

43

49 

50 

53 

46 

55

61 

67 

69 

72 

72

67 

70 

64 

58 

56

63 

75 

76 

75

71

64 

58 

58 

56 

48

Seeondfoot-days

0 

10.8 

130.6

5,813.2

269.2 

402,5 

1,325 

1,738 

1,070 

240.1 

6.6. 

0 

0

5,192-8

May

46 

46 

47 

42 

40

39 

38 

36 

35 

33

31 

30 

30 

34 

43

42 

40 

41 

39 

39

35 

33 

33 

31 

27

26 

23 

23 

23 

23 

22

Maximum

0 

1,9 

12

491

30 

29 84 ' 

76 

47 

21 

1.3 

0 

0

84

June

21 

20 

18 

17 

16

14 

13 

12 

11 

10

8.8 

7.8 

6.8 

5.6 

5.0

4.2 

4.2 

4.5 

5.2 

5.0

4.5 

4.0 

3.6 

3.4 

3.4

5,2 

3.4 

2,4 

1.6 

1.5

July

1.3 

1.1 

1.0 

.9 

.6

.4 

.4 

.3 

.2 

.2

.1 

.1 

0 

0 

0

O 

0 

0 

O 

0

0 

0 

0 

0 

0

0 

O 

0 

0 

0 

0

Minimum

0 

0 

1.9

0

3.2 

9.2 

22 

34 

22 

1.5 

0 

0 

0

0

Aug.

Mean

0 

.36 

4.21

15.9

8.68 

14.4 

42.7 

57.9 

34.5 

8.00 

,21 

0 

0

14,2

Sept.

Runoff In 

acre-feet

0 

21 

259

11,520

554 

798 

2,630 

3,450 

2,120 

476 

13 

0 

0

10,300

Peak discharge (base, 200 sec. -ft,),- No peak above base.
206 TULARE LAKE BASIN

Kaweah River near Three Rivers, Calif.

Location.- Water-stage recorder, lat. 36°24', long. 118°57 I , in SW£ sec.33 T. 17 S., R.

as 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 1949. April 1903 to January 1936 at site

2 miles upstream.

Average discharge.- 46 years 563 second-feet. 

Extremes.- Maximum discharge during year, 2,500 second-feet May 26 (gage height, 5.83

feet); minimum, 16 second-feet Sept. 24 (gage height, 0.86 foot).

1903-49: Maximum discharge, 33,300 second-feet Dec. 11, 1937 (gage height, 17.0

feet, present datum), from rating curve extended above 6,000 second-feet on basis of

velocity-area study; minimum, 8.5 second-feet Sept. 19, 1934. 

Remarks - Records good. Diversions above station for irrigation and power development

on Middle and East Forks. 

Revisions(water years).- W 1121: 1918-21.

Rating table, water year 1948-49 (gage height, in feet,

and discharge, in second-feet] 

CBackwater from debris Oct. 29 to Dec. 9, 

Aug. 10 to Sept. 30)

0.8 15 1.6 111 3.6 845 

.9 22 1.8 152 4.0 1,060 

1.0 30 2.0 202 4.5 1,380 

1.1 40 2.4 325 5.0 1,750 

1.2 50 2.8 478 5.5 2,180 

1.4 75 3.2 650

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2? 

29 

28 

28 

.28

29 

28 

28 

26 

25

27 

31 

34 

37 

35

34 

32 

31 

31 

31

30 

30 

29 

29 

29

29 

30 

30 

30 

35 

36

Nov.

35 

35 

35 

36 

35

35 

33 

33 

32 

34

34

33 

32 

32 

32

32 

32 

33 

34 

34

35 

34 

34 

36 

36

35 

36 

34 

36 

35

Dec.

35 

35 

39 

48 

45

51 

51 

51 

52 

52

50 

50 

49 

60 

61

57 

64 

67 

58 

61

61 

59 

58 

51 

57

61 

87 

72 

68 

65 

67

Jan.

67 

69 

a65 

a60 

a50

a60 

a65 

a65 

a65 

a60

a55 

a60 

a65 

a65 

a65

a60 

a55 

a60 

a70 

a220 .

a!30 

alOO 

allO 

a90 

84

84 

82 

80 

80 

84 

80

Feb.

78

85 

82 

78 

84

84 

121 

113 

96 

100

121 

117 

96 

94- 

98

98 

107 

219 

144 

157

137 

137 

154 

157 

171

157 

169 

152

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

146

154 

176 

263 

266

194 

194 

197 

176 

171

408 

279 

219 

205 

222

224 

239 

251 

308 

318

257 

279 

360 

308 

266

248 

254 

308 

276 

251 

248

Apr.

245 

236 

236 

292 

406

466 

410 

402 

394 

601

790 

900 

1,020 

1,140 

1,140

1,050 

1,170 

1,060 

1,000 

966

1,350 

1,670 

1,710 

1,720 

1,650

1,440 

1,380 

1,,630 

1,580 

1,390

Secondfoot -days

937 

1,022 

1,742

129,779

2,405 

3,316 

7,665 

29,444 

41,862 

17,166 

2,803 

1,265 

716

110,343

Peak discharge (base, 2,200 sec. -ft.}.- Apr. 22 (11:30

May

' 1,400 

1,640 

1,500 

1,130 

1,200

1,400 

1,400 

1,340 

1,220 

1,000

1,050 

1,320 

1,420 

1,700 

1,220

1,130 

1,300 

1,380 

1,270 

1,080

1,100 

1,270 

1,510 

1,690 

1,740

1,860 

1,850 

1,570 

1,230 

1,020 

922

Maximum

37 

36

87

3,970

220 

171 

408 

1,720 

1,860 

961 

171 

52 

32

1,860

June

875 

961 

961 

880 

840

865 

922 

961 

939 

875

805 

765 

682 

650 

605

562 

491 

426 

364 

325

299 

282 

273 

260 

242

236 

227 

210 

197 

186

July

171 

162 

159 

152 

148

142 

133 

123 

113 

105

100 

94 

90 

87 

84

78 

74 

69 

67 

64

61 

59 

57 

56 

54

53 

51 

SO 

48 

48 

51

Aug.

52 

49 

47

45 

43

43 

42 

42 

42 

43

43 

44 

43 

41 

41

40 

38 

39 

39 

38

37 

39 

51 

44 

39

36 

35 

34 

32 

32 

32

Sept.

32

31 

29 

28 

28

28 

28 

26 

26 

26

25 

26 

25 

25 

24

24 

23 

23 

21 

21

Z\ 

20 

19 

18 

18

18 

20 

21 

21 

21

Minimum Mean « «fle?

25 30.2 1,860 

32 34.1 2,030 

35 56.2 3,460

25 ' 355 257,400

50 77.6 4,770 

78 118 6,580 

146 247 15,200 

236 981 58,400 

922 1,350 83,030 

186 572 34,050 

48 90.4 -5,360 

32 40.8 2 ,,510 

18 23.9 1,420

18 302 218,900

p.m.) 2,250 sec. -ft.; May 26 (ll p/m.) 2,50

sec.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage and unpublished 

records for Kaweah River at McKay Point.
TULARE LAKE BASIN 207

North Fork Kaweah River at Kaweah, Calif.

Location.- Water-stage recorder, lat. 36°29', long. 118°55', in SE^ sec. 34, T. 16 S., 

RT~2B~E., 1.2 miles upstream from Mannikin Creek, 1.5 miles north of Kaweah, and 3 

miles upstream from mouth. Altitude of gage, about 1,080 feet (from topographic map).

Drainage area,- 128 square miles.

Records available.- October 1933 to September 1949. October 1910 to October 1933 at site 

i mile downstream.

Average discharge.- 38 years (1911-49), 98.4 second-feet.

Extremes.- Maximum discharge during year, 469 second-feet Apr. 21 (gage height, 4.02 

i'eet); minimum, 2.0 second-fee-t Sept. 17.

1910-49: Maximum discharge, 8,290 second-feet Dec. 11, 1937 (gage height, 11.0 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

study; no flow for many days during July to October 1924.

Remarks.- Records good. Several small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

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.

4.4 

4.2 

4.0 

4.0 

4.2

4.4 

4.6 

4.4 

4.0 

4*0

4.2 

4.8 

6.2 

5.8

5.7

5.6 

5.4 

5.3 

5.0 

5.0

4.9 

4.4 

4.6 

4.6 

4.8

.8 

.6 

.6 

.6 

.9 

5.7

Nov.

5.7 

5.8 

6.1 

6.2 

6.4

6.2 

6.1 

6.0 

6.0 

6.0

6.0 

5.7 

5.7 

5.7 

5.7

5.8 

6.0 

6.2 

6.4 

6.7

7.0 

7.0 

6.8 

6.7 

6.8

7.0 

7.2 

7.4 

7.2 

7,6

Dec.

7.2 

7.4 

8.0 

9.2 

8.8

9.4 

10 

9.6 

10 

9.8

9.8 

9.6 

9.8 

13 

13

12 

14 

15

13 

12

12 

13 

12 

12

11

12 

17 

16 

14 

14 

14

Jan.

14 

15 

14 

13 

11

13 

13 

13 

13 

12

10 

12 

12 

12

12

12 

11 

12 

15 

40

20 

17 

IS 

14 

14

13 

14 

14 

14 

14 

15

Feb.

14 

14 

15 

14 

16

16 

22 

18 

17 

18

23 

20

17 

16 

17

17 

20 

27

33 

37

29 

30 

37 

36 

38

33 

35 

34

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

30 

36 

47 

95 

76

53 

52 

48 

41 

43

128 

75 

60 

55 

62

62

70 

78 

96 

83

66 

72 

88 

78 

65

60 

60 

78 

66 

62 

60

Apr.

61 

61 

61 

86 

124

135 

112 

104 

110 

178

214 

243 

272 

295 

285

253 

288 

268 

231 

240

302 

342 

330 

323 

309

268 

253 

265 

253 

226

Secondfoot -days

147.7 

191.1 

357.6

18,917.0

446 

663 

2,045 

6,492 

4,870 

1,189 

309.0 

125.1 

84.0

16,919.5

May

217 

228 

209 

178 

171

173 

166 

155 

159 

148

138 

138 

138 

201 

173

159 

166 

201 

185 

-178

173 

151 

140 

135 

128

125 

119 

112 

106 

106 

94

Maximum

6.2 

7.6 

17

1,300

40

38 

128 

342 

228 

86 

17 

5.4 

3.2

342

June

86 

81 

73 

67 

62

59 

57 

54 

50 

46

43

41 

38 

35 

33

31 

30 

29 

30 

30

27 

25 

24 

22 

21

20 

20 

19 

18

18

Minimum

July

17 

16 

16 

15

15

15 

14 

13 

13 

12

11 

10 

10 

10 

9.6

9.2 

9.0 

8.6 

8.0 

7.6

7.6 

7.2 

7.0 

6.1 

6.2

6.6 

6.4 

5.8 

6.0 

5.8 

5.3

4.0 

5.7 

7.2

2.8

10 

14 

30 

61 

94 

18 

5.3 

2.8 

2.4

2.4

Aug.

5.4 

5.2 

4.8 

4.9 

4.8

4.8 

4.6 

4.6 

4.4 

4.4

4.6 

4.6 

4.4 

4.2 

3.6

3.8 

4.2 

4.0 

3.7 

3.4

3.0 

3,1 

3.4 

4.6 

3.6

3.2 

3.3 

3.2 

3.3 

3.2 

2.8

Mean

4.76 

6.37 

11.5

51.7

14.4 

23.7 

66.0 

216 

157 

39.6 

9.97 

4.04 

2.80

46.4

Sept.

2.8 

2.8 

2.8 

2.8 

2.8

3.0 

3.0 

3.2 

3.1 

3.1

3.2

3.0 

3.2 

3.2

3.2

3.-0 

2.4 

2.7 

2.7 

2.6

2.5 

2.4 

2.4 

2.4 

2.4

2.4 

2.6 

2.6

2.7 

3.0

Hunof f In 

acre-feet

293

379 

709

37,520

885 

1,320 

4,060 

12,880 

9,660 

2,360 

613 

248 

167

33,570

Peak discharge (base, 700 sec.-ft.J.- No peak above base.
208 T0LARE 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 

a., K. 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 1949.

Extremes.- Maximum discharge during year, 8.8 second-feet Mar. 4 (gage height, 1.07 feet); 

no now for several months.

1944-49: 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 Mar1 . 9, 1943, estimated at 1.000 to 1,200 seeond-feet by Alta Irrigation 

District.

Remarks.- Records fair. No regulation or diversion above station. 

Cooperation.- One discharge measurement furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1948 to September 1949

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 

3P 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr!

MA 17

June 

July 

Augu 

Sept

We

lendar year 1946 

&ry

ter year 1948-49 .......................

Mar.

0 

0 

0 

2.2

.6

0 

O 

.1 

.1 

.2

3.7 

1.6 

.9

.7 

.6

.6

.5 

.4 

1.0 

2.2

1.0 

1.0 

3.2 

£.0 

1.3

1.0 

.3 

.8 

.7 

.6 

.6

Apr.

ooooo

Seo6ndf6ot-days

0 

0 

0

29 i 6

0 

0 

28.4 

4.5 

0 

0 

0 

0 

0

32,9

May

Maximum

0 

0 

0

8.0

0 

0 

3.7 

.5 

0 

0 

0 

0 

0

3.7

June July

Minimum

0

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.08

0 

0 

.92 

.15 

0 

0 

0 

0 

0

.09

Sept.

Runoff in 

acre-feet

0 

0 

0

59

0 

0 

56 

6.9 

0 

0 

0 

0 

0

65

Peak discharge ..(base,. 10 sec t -ft.).- No peak above base.
TULARE LAKE BASIN 

Kings River above North Pork, Calif.

209

Location.- Water-stage recorder, lat, 36°52', long. H9°07 I , in N? sec. 27, f. 1% S., R. 

^6 E. (unsurveyed), 1 mile upstream from North Pork and 10 miles southeast of Trimmer. 

Altitude of gage, about 1,020 -feet (from topographic map).

Drainage area.* 9'56 square miles.

Records available.- October 1931 to September 1949. March 1927 to December 1928 at site 

hair a mile downstrearn,

Average discharge.- 19 years {1927-28, 1931-49), 1,415 second-feet.

Extremes.,- Maximum discharge during year, 6,570 second-feet May 27 -(gage height, S.91 feet); 

minimum, 86 second-feet Dec. 25, Jan. 11.

19.27-28, 1931-49: Maximum discharge, 42,000 second-feet Dec. 11, 1937 (gage height, 

12.02 feet), from rating curve extended above 11,000 secctnd-feet on 'basis of velocityarea studies; minimum, 79 second-feet Oct.-13, M34 (gage height, 0.54 foot).

Remarks.- Records excellent. Plow slightly regulated by small reservoirs above station 

onTen Mile and Mill Plat Creeks.

Cooperation.- Gage-height record collected in cooperation with Pacific Gas & Electric Co.

Rating table, water year 1848-49 (gage height, In feet, 

and discharge, In seconds-feet;

Qi3 78 0.6 164 1.8 483 3.6 1,810 

.4 92 1.0 212 2.0 576 4.0 2,280 

.5 -*OS 1.2 268 2.4 8O2 4.5 3,040 

.6 125 1.4 330 2.8 1,O80 5.0 4,0*0 

.7 144 1.6 401 3.2 1,420 5.7 5,900

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20,

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

103 

1OO 

98 

98 

10O

1O2 

100 

97 

95 

95

95 

100 

106 

116 

122

116 

111 

110 

108 

108

105 

103 

102 

102 

102

102 

102 

102 

103 

106 

108

Nov.

110 

113 

111 

113 

110

108 

106 

106 

103 

102

102 

100 

102 

102 

100

102 

102 

103 

98 

105

97 

94 

95 

103 

102

97 

95 

89 

94 

91

Dec.

91 

94 

102 

105 

95

106 

111 

111 

113 

111

108 

108 

108

123 

115

105 

129 

127 

106 

113

127 

131 

123 

106 

97

122 

173 

142 

131 

138 

142

Jan.

140 

152 

136 

110 

95

116 

140 

144 

140

118

10O 

125 

131 

134 

133

123 

120 

129 

148 

197

158 

171 

176

152 

127

ISO 

162 ise

154 

154 

154

Feb.

150 

148 

154 

148 

162

158 

187 

178 

173 

192

236 

200 

178 

180 

197

197 

212 

234 

248 

262

245 

239 

259 

262 

268

259 

265 

262

Month

OS to

Hove 

Deoe

Ca

Janu 

Febf 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ................ t ......

Mar.

254 

289 

327 

557 

382

33O 

324 

314 

304

337

673 

441 

390 

386 

417

417 

413 

421 

479 

458

421 

470 

519 

465 

441

429 

458 

519 

458 

441 

421

Apr.

1, 

1, 

I, 

1,

1, 

1, 

1, 

1, 

1,

2, 

3, 

3, 

3, 

3,

2, 

2, 

3, 

3, 

3,

Secondfoot -days

3,217 

3,055 

3,613

303,643

4,347 

5,853 

12,956 

52,318 

106,350 

79,920 

19,462 

7,781 

3,982

302,854

417 

421 

429 

475 

557

628 

612 

597 

645 

766

951 

160 

350 

590 

720

670 

850 

800 

840 

S4O

430 

130 

410 

450 

450

730 

600 

260 

370 

170

May

3,130 

3,860 

3,720 

3,170 

3,240

3,350 

3.S50 

3,550 

2,990 

2,460

2,430 

3,080 

3,530 

4,110 

2,990

2,660 

3,200 

3,110 

2,710 

2,250

2,190 

2,6oO 

3,370 

4,240 

4,730

5,070 

5,660 

5,380 

4,080 

3,180 

2,740

Maximum

132

113 

173

5,520

197 

268 

673 

3,450 

5,660 

4,430 

1,190 

429 

192

5>660

June

2,560 

2,970 

3.0SO 

2,600 

2,490

3,150 

3,610 

4,080 

4,220 

4,430

4,400 

4,330 

3,840 

3,800 

3,650

3,410 

3,040 

2,486 

1,990 

1,600

1,470 

1,460 

1,420 

1,460 

1,470

1,570 

1,520 

1,410 

1,260 

1,140

July

1,060 

1,060 

1,190 

1,140 

1,020

930 

846 

772 

725 

690

678 

656 

719 

696 

656

628 

586 

557 

524 

470

437 

405 

382 

364 

354

340 

330 

324 

308 

298 

317

Aug.

317 

320 

327 

314 

304

292 

277 

262 

251 

245

236 

234 

217 

204 

197

192 

185 

178

m

164

ise

171 

429 

379 

320

286 

259 

245 

228 

217 

202

Minimum Mean

95 104 

89 102 

91 117

89 830

95 140 

148 209 

254 418 

417 1,744 

2,190 3,431 

1,140 2,664 

298 628 

158 251 

106 153

89 830

Sept.

192 

182 

176 

166 

160

156 

150 

144 

140 

138

134 

133 

131 

133 

131

127 

123 

122 

118 

115

113 

116 

116 

113 

111

110 

110 

108 

108 

106

Runoff In 

acre-feet

6,380 

6,060 

7,170

602,300

8,620 

11,610 

25,700 

103,800 

210,900 

158,500 

38,600 

15,430 

7,900

600,700

Peak, discharge (base, 6.300 age.,-ft. 1,- May 27 (3 a.m.) 6,57o see."ft.
210 TULARE LAKE BASIN

Kings River at Piedra, Calif.

Location.- Water-stage recorder, lat. 36°49'02", long. 119°23'08", In NW£ sec. 8, T. 13

S., h. 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 1949. 

Average discharge.- 54 years, 2,296 second-feet. 

Extremes.- Maximum discharge during year, 11,500 second-feet May 27 (gage height, 9.60

feet); minimum, 109 second-feet Dec. 2 (gage height, 0.71 foot).

1895-1949: Maximum discharge, 80,000 second-feet Dec. 11, 1937 (gage height, 19.94

feet), from rating curve extended above 30,000 second-feet on basis of velocity-area

studies; minimum, 67 second-feet Oct. 3, 1924. 

Remarks'. - Records excellent. Flow slightly regulated by small reservoirs on Ten Mile and

Mill Plat Creeks, and by power plant on North Fork. 

Cooperation.- Two 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).

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to May 27 May 28 to Sept. 30

1.0 

1.2 

1.6 

2.0

107

124

163

208

310

440

2.3 

2.6 

3.0 

3.5 

4.0 

4.5

562

710

930

1,250

1,530

2,100

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

2,640

3,240

3,850

5,300

7,260

9,700

110

128

170

242

360

2.1 

2.4 

2.7 

3.1 

3.5

510

635

780

1,000

1,250

Note.- Same as preceding 

table above 3.5 feet.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

124 

121 

119 

117 

117

121 

122 

121 

117 

117

124 

130 

135 

134 

153

155 

155 

147 

135 

132

130 

128 

124 

124 

122

124 

122 

122 

122 

126 

134

Nov.

137 

141 

145 

147 

147

143 

139 

135 

134 

132

128 

128 

128 

128 

128

128 

130 

132 

132 

130

132 

124 

121 

126 

132

132 

126 

124 

114 

121

Dec.

116 

117 

130 

145 

139

134

157 

153 

159 

161

157 

149 

149 

165 

196

161 

174 

203 

178 

161

176 

190 

185 

167 

145

159 

247 

257 

201 

196 

206

Jan.

£06 

218 

222 

190 

153

145 

181 

203 

203 

194

157 

153 

185 

183 

183

181 

170 

170 

199 

405

307 

267 

316 

280 

234

215 

237 

240 

237 

232 

234

Feb.

230 

225 

244 

227 

247

267 

362 

385 

302 

293

346 

426 

310 

288 

288

296 

307 

353 

388 

436

426 

395 

419 

440 

504

451 

492 

447

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1945

ter year 1943-49 .......................

Mar.

426 

469 

730 

1,960 

1,060

715 

635 

625 

544 

567

2,050 

1,070 

815 

740 

771

782 

798

776 

882

1,010

788 

826 

1,150 

972 

842

782 

793 

960 

888 

798 

771

Apr.

750 

782 

798 

946 

1,080

1,280 

1,200 1,190 ' 

1,220

1,540

1,940 

2,390 

2,750 

3,180 

3,500

3,190 

3,650 

3,460 

3,500 

3,500

4,490 

5,840 

6,280 

6,280 

6,560

4,920 

4,530 

5,680 

6,010 

5,570

Secondfoot-days

3,974 

3,944 

5,233

492,264

6,700 

9,794 

26,995 

98,006 

186,050 

106,810 

23,066 

9,075 

'4,680

484,327

May

5,390 

6,830 

6,870 

5,440 

5,590

5,920 

6,280 

6,280 

5,340 

4,290

4,370 

5,590 

6,220 

7,950 

5,480

4,790 

5,840 

6,280 

5,040 

4,190

4,080 

4,610 

5,790 

7,220 

7,910

8,400 

9,240 

8,740 

6,580 

5,090 

4,410

Maximum

155 

147 

257

10,400

405 

504 

2,050 

6,560 

9,240 

5,840 

1,340 

506 

232

9,240

June

4,040 

4,500 

4,790 

4,180 

3,920

4,540 

5,230 

5,620 

5,620 

5,840

5,730 

5,620 

4,850 

4,680 

4,500

4,210 

3,820 

3,190 

2,720 

2,160

1,880 

1,780 

1,730 

1,760 

1,760

1,800 

1,800 

1,680 

1,490 

1,370

Minimum

July

1,270 

1,220 

1,340 

1,320 

1,210

1,110

1,020 

934 

874 

824

802 

780 

802 

813 

775

735 

705 

666 

630 

582

534 

498 

470 

450 

430

412 

398 

384 

370 

354 

354

117 

114 

116

114

145 

225 

426 

750 

4,080 

1,370 

354 

190 

124

114

Aug.

367 

364 

378 

374 

354

336 

324

309 

288 

285

279 

264 

267 

248 

237

229 

224 

216 

204 

197

190 

190 

308 

506 

406

348 

312 

291 

276 

259 

245

Mean

128 

131 

169

1,345

216 

350 

871 

3,267 

6,002 

3,560 

744 

293 

156

1,327

Sept.

232 

219 

209 

202 

192

183 

177 

170 

166 

163

159 

159 

157 

155 

155

150 

146 

142 

138 

134

130 

126 

130 

130 

128

124 

126 

126 

126 

126

Runoff In 

acre-feet

7,880 

7,820 

10,380

976,400

13,290 

19,430 

53,540 

194,400 

369,000 

211,900 

45,750 

18,000 

9,280

960,700

Peak discharge (base, 8,500 sec.-ft.).- May 14 (5 a.m.) 9,920 sec.-ft.; May 27 (5 a.m.) 11,500 sec.
TULARE LAKE BASIN 211

North Fork Kings River near Cliff Camp, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 118°59', in NWi sec. 12, T. 11 S., R,

2? E., at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2,3 miles downstream

from Woodchuck Creek. Datum of gage is 6,143.95 feet above mean sea level, adjustment

of 1912 (levels by San Joaquin Light & Power Corp.). 

Drainage area.- 174 square miles. 

Records available.- November 1922 to September 1949. August 1921 to November 1922 at site

i mile upstream.

Average discharge.- 25 years (1921-32, 1933-35, 1937-49), 344 second-feet. 

Extremes.- Maximum discharge during year, 3,100 seoond-feet May 26 (gage height, 10.25

feet); minimum, 1.7 second-feet Nov. 30.'

1921-49: Maximum discharge, 14,000 second-feet Dec. 11, 1937 (gage height, 18.0

feet, from floodmarks), from rating curve extended above 4,500 second-feet on basis of

velocity-area studies and by logarithmic plotting; minimum, 0.6 second-foot Dec. 30,

1930. 

Remarks.- Records goo^ except those for Dec. 16 to Apr. 26, which are fair. No storage

or diversion above station. 

Cooperation.- Water-stage recorder graph, furnished by San Joaquin Power Division, Pacific

uas & Kiectric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1948r 49, except period of ice effect 

(gage height, in feet, and discharge, in seoond-feet)

2.4 3.3 3.7 78 6.5 794 

2.6 6.0 4.0 120 7.0 982 

2.8 9.8 4.4 190 7.5 1,180 

3.0 16 4.9 298 8.0 1,410 

3.2 28 5.4 430 8.5 1,700 

3.4 45 6.0 618 9.1 2,120

Discharge, in seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.6 

4.5 

4.5 

4.5 

4.6

5.0 

5.0 

4.8 

4.6 

4.5

5.1 

6.7 

8.2 

11 

10

8.2 

7.3 

6.5 

6.4 

6.2

5.8 

5.7 

5.7 

5.7 

5.8

5.8 

5.8 

5.8 

6.2 

6.9 

7.6

Nov.

8.4 

9.0 

9.4 

9.2 

8.0

7.4 

7.4 

7.1 

6.5 

6.4

5.8 

6.2 

6.9 

6.7 

6.7

7.3 

7.6 

7.1 

6.9 

6.9

5.8 

5.6 

6.9 

6.9 

6.5

6.0 

4.8 

5.1 

5.2 

4.5

Dec.

5.3 

5.4 

6.4 

5.6 

7.6

8.2 

9.2 

10 

10 

9.0

8.8 

8.8 

8.8 

8.6 

8.6

10

10 

10

1111

11 11

10 

10 

10

10 

10

11

11

12 

12

Jan.

13 

11

 

14

Feb.

15

17 

[ 25

35

Month

Octo 

Hove

Dece

Ca

Janu 

Febn 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ........................

Mar.

31 

38 

37 

35 

30

30 

31 

30 

31 

37

45 

37 

37 

45 

55

55 

60 

70 

90 

75

75 

75 

65 

55

52

55 

85

105 

80 

75 

70

Apr.

1, 

1, 

1, 

1, 

1,

1,

1,

1, 

1, 

1,

Secondfoot-days

189.0 

204.2 

290.3

89,328.9

389 

632 

1,691 

20,925 

44,738 

15,625 

1,070 

320.4 

150.3

86,224.2

Peak discharge (base, 1,900 sec. -ft.).- May 2 (8 p.m.)

ft.j May 13 (11:50 p.m.) 2,960 see. -ft. ; May 17 (10 p.m.

80 

90 

110 

130 

190

180 

150 

165 

230 

300

370 

480 

600 

700 

650

700 

700 

650 

740 

800

100 

400 

450 

500 

350

050 

090 

350 

340 

280

May

1,490 

1,750 

1,490 

1,270 

1,370

1,470 

1,560 

1,490 

1,120 

948

1,260 

1,540 

1,740 

1,910 

1,190

1,380 

1,660 

1,460 

1,120 

921

1,040 

1,360 

1,720 

1,890 

1,970

2,080 

1,950 

1,560 

1,210 

959 

860

Maximum

11 

9.4 

12

2,740

105 

1,500 

2,080 

1,080 

81 

36 

7.8

2,080

June

868 

993 

940 

841 

876

1,080 r.oio

944 

914 

887

787 

708 

608 

562 

499

442 

374 

315 

308 

232

196 

177 

171 

158 

148

141 

133 

117 

104 

92

July

81 

74 

79 

73 

66

60 

54 

48 

43 

40

38 

36 

34 

34 

32

29 

27 

25 

23 

20

19 

18 

16 

15 

14

14 

'12 

12 

11 

11 

12

Aug.

14 

12 

11 

10 

9.6

9.2 

8.8 

8.4 

8.0 

8.0

7.8 

8.2 

8.4 

7.8 

7.3

7.1 

6.7 

6,2 

5.7 

5.6

5.6 

19 

36 

18

12

11 

11 

10 

10 

9.4 

8.6

Minimum Mean

4.5 6.10 

4.5 6.81 

5.3 9.36

3.6 244

12.5 

22.6 

30 54.5 

80 698 

860 1,443 

92 521 

11 34.5 

5.6 10.3 

3.8 5.01

3.8 236

Sept.

7.8 

7.1 

6.7 

6.2 

5.8

5.6 

5.4

5.2 

5.2 

5.2

5.2 

5.2 

5.1 

5.1 

5.0

4.8 

4.8 

4.6 

4.5 

4.1

4.0 

3.8 

4.5 

4.6 

4.3

4.0 

3.9 

4.0 

4.3 

4.3

Runoff in 

acre-feet

375 

405 

576

177,200

772 

1,250 

3,350 

41,500 

88,740 

' 30,990 

2,120 

636 

298

171,000

2,340 see. -ft.) May 6 (9:30 p.m.') 2,040 sec 

) 2,400 sec. -ft.; Msy 26 (8:30 p.m.) 3,100

ec.-ft.

Hote.- Stage-discharge relation affected by ice Dec. 16 to Peb 28. Doubtful gage-height record 

ar^T~to Apr. 26j discharge computed on basis of records for station below Rjancheria Creek.
212 TULARE LAKE BASIN

North Pork Kings River below Ranoheria Creek, Calif.

Location.- Water-stage recorder, lat, 36°56', long. IIS'OO 1 , in SEi sec, 34, T. 11 S., R. 

'27 K., 1 mile upstream from Balch diversion dam and 1 mile downstream from Rancheria

Creek. Datum of gage is 4,153.30 feet above mean sea level, adjustment of 1913 (levels

by San Joaquin Light & Power Corp.). 

Drainage area.- 235 square miles.

Records ayayitfble. - March 1927 to December 1937, January 1939 to September 1949. 

Average dlscnargeT- 19 years (1927-36, 1939-49), 386 second-feet. 

Extremes,- Maximum discharge during year, 3,200 second-feet May 26 (gage height,- 10,11

feet); minimum, 11 second-feet Sept. 20-27.

1927-49: Maximum discharge, 21,000 second-feet Dec. 11, 1937 (gage height, about

23 feet, from floodmarks), by computations of peak flow over Balch diversion and

afterbay dams, 1 mile and 7 miles, respectively, below station; minimum, 5 second-feet

Aug, 29, 1931. 

Remarks. -. Records good except those for periods of Ice effect or no gage-height record,

which are fair. No storage or diversion above station. 

Cooperation.- Water-stage recorder graph, furnished by San Joaquin Power Division of

Faeiric uas & Electric Co., obtained in connection with a Federal Power Commission

project,

Rating tables, water year 1948-49, except periods of ice affect 

(gage height, in feet, and discharge, in second-feet)

Dot. 1 to June 30 July 1 to §ept. 30

1.0 13 Z.I 68 5.5 419 0.9 10 

1.1 14 3.1 93 6.0 560 1.1 13 

1.3 17 3.5 123 6.5 755 1.3 17 

1.6 24 4.0 174 7.0 990 1.5 21 

1.9 32 4.5 239 8,0 1,540 

2.3 48 5.0 319 9.1 £.340 %? 'I Same as pre- ceding table abpve 

1.5 feet. 

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

Id

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

51

Oot,

14 

13 

13 

13 

14

14 

13 

13 

13 

13

14 

15 

17 

19 

19

17 

16 

15 

15

15

15 

14 

14 

14 

14

14

14 

14 

15 

16 

16

Nov.

17 

18 

19 

19 

18

16 

IS 

16 

15 

15

15 

14 

15 

15 

15

15 

16 

16

16 

15

15 

14 

IS 

16

15

16 

14 

14 

14

14

Dec.

14 

14 

15 

16 

16

19 

19 

*20 

21

20

19 

18 

19 

22 

19

21 

23 

22 

23 

24

26 

24 

21 

b21 

20

22 

22 

23 

24

26 

27

Jan.

27 

28 

b27 

b2S 

24

24 

28 

29 

28 

925

a22 

ago 

a20 

a20 

20

20 

20 

21 

22 

22

b22 

b23 

b24 

b24 

b24

24 

25 

27 

28 

28 

28

Feb.

27 

27 

27 

26 

27

27 

b27 

b29 

28 

32

35 

a33 

a32 

a31 

a33

aSS 

42 

46 

58

58

50 

54 

60 

58 

54

57 

52 

48

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl

WAV

June 

July 

Augu 

Sept

Ha

nber. ...................................

lendar year 1948

h. ......................................

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

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

ter year 1949-49 .......................

Peak discharge (base, 2,200 sec, -ft.).- Ma

sec. -ft. j May 26 (10 p.m.) 5,200 aee.-ft.

Mar,

50 

62 

58

56 

48

48 

49 

47 

49 

60

73 

58 

60 

70

85

85 

94 

'112 

129 

96

*99 

109 

94 

82 

81

83 

124

152 

117 

109

103

Apr.

1,

1, 

1, 

1,

1,

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

455 

468 

640

104,949

749 

1,112 

2,542 

26,506 

52,160 

18,030 

1,589 

600 

365

105,216

y 2 (9 p.m.)

118 

133 

160 

226 

274

261 

229 

237 

346 

447

547 

663 

781 

889 

836

861 

868 

845 

925 

030

410 

700 

730 

830 

650

280

340 

660 

670 

580

May

1,740 

2,060 

1.860 

1,540 

1,640

1,710 

1,820 

1,710 

1,350 

1,100

1,400 

1,760 

1,980 

2,200 

1,430

1,580 

1,910 

1,760 

1,400 

1,100

1,320 

1,560 

1,920 

2,110 

2,190

2,300 

2,210 

1,880 

1,490 

1,180 

1,050

Maximum

19

19 

27

2,810

?9 

60 

152 

1,830 

2., 300 

1,260 

106 

49 

15

2,300

June

1,030 

1,190 

1,130 

995 

1,000

1,260 

1,180 

1,090 

1,050 

1,030

90S 

822 

678 

612 

536

469 

401 

342 

342 

26?

228 

204 

197 

185 

173

166 

156 

141 

129 

119

July

106 

98 

102 

97 

90

84 

76 

69 

64 

59

56 

54 

52 

50 

47

44 

42 

40 

38 

35

32 

30 

28 

28 

27

26 

24 

24 

22 

22 

23

Aug.

25 

23 

22 

20 

19

18 

18 

17 

17 

17

17 

17 

17 

17 

16

16 

15

14 

14 

14

14 

20 

49 

32 

23

20 

19 

19 

18 

17 

16

Minimum Mean

13 14.7 

14 15.6 

14 20.6

12 287

20 24.2 

26 39,7 

47 82.0 

118 884 

1,050 1,683 

119 601 

22 51.3 

14 19.4 

11 12.2

11 288

Sept.

15 

14

14- 

13 

13

13 

13 

12 

12 

12

13 

13 

12 

12 

12

12 

12 

12 

12 

H

11 

11 

11 

11

11

11

11 

12 

12 

12

Runoff in 

acre -feet

902 

928 

1,270

208,100

1,490 

2,210 

5,040 

52,570 

103,500 

35,760 

5,150 

1,190 

724

208.700

2,600 aec.-ft.-} May 13 (12:30 p.m.) 3,160

* Winter discharge measurement made on this day. 

a No gage-heigbt record; discharge computed on basis of furnished record of flow through Balch 

powerhouse.

b Stage-discharge relation affected by ice.
SAN JOAQUIN RIVER BASIN 

SAN JOAQUIN RIVER MAIN STEM

213

San Joaquin River above Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°15'QO", long. lig^lS'lQ", in NW£ sec. 11, T. 8 

"" "s., K. 24 E., 3 miles upstream from Big Creek. Altitude of gAge, about 8,500'feet

(from topographic map). 

Drainage area.- 1,042 square miles 

Kecords available. - March 1922 to September 1949. 

Average gischarglT- 24 years (1925-49, period since diversions began through Ward tunnel>,

1,3.1if secona-reet. 

Extremes.- Maximum discharge during year, 7,480 second-feet May 26 (gage height, 14.27

£eet); minimum, 61 second-feet Jan. 3.

1922-49: 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. 223) and diversions

through Ward tunnel (see p.226) beginning in 1925. 

Cooperation,- Water-stage recorder graph and nine discharge measurments, furnished by

Southern California Edison Go., obtained in connection with a Federal Power Commission

project.

Rating table, Water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1 to Dec. 25, Jan. 3, 4)

6.0

6.1

6.2 

6.5 

6.7

110

134

188

259

346

495

730

9.0

9.5

10.0

10.5

11.0

1,000

1,290

1,630

2,020

2,450

11.5

12.0

12.5

13.0

13.6

2,950

3,560

4,270

5,060

6,150

Discharge, in second-feet, water year October 1948 to September 1949

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.

77 

75 

74 

73 

73

74 

74 

72 

70 

69

74 

87 

98 

106 

118

107 

97 

90 

88 

86

83 

79

78 

77 

77

76 

75 

74 

75 

81 

83

Hov.

90 

98 

124 

125

117

97 

94 

93 

88 

83

82 

83 

83 

83 

82

83 

83 

85 

85 

86

86

 77 

74 

82 

86

85

75 

73 

74

77

Dee.

73 

78 

89 

101 

86

106 

121 

113 

113

111

109 

107 

110 

139 

125

113 

137 

142 

124 

128

139 

137 

125 

106 

98

139

157 

144 

145 

155 

159

Jan.

166 

180

132 

101 

148

155 

159 

154 

144

101

130 

129 

134 

133 

129

125 

122 

128 

136

170

159 

168 

161 

142

149

155 

154

154 

145 

152 

134

Feb.

157 

168 

168 

163 

168

168 

182 

164 

182 

203

259 

206 

210 

187 

206

201 

231 

267 

298 

315

286 

281 

300 

321 

330

334

330 

321

Month

Octo 

Hov* 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

MMV

Juno 

July 

Augu 

Sept

Wa

mber . ........................... .......

lendar year 1948 

apy >

ter year 1948-49 .......................

Mftr.

321 

420 

648 

655 

495

435 

408 

383 

397 

524

899 

568 

537 

516 

592

630 

660 

645 

730 

645

592 

630 

611 

529

491

487 

645 

846 

675 

596 

546

Apr;

550

640 

770 

890 

1,040

1,220 

1,170 

1,090 

1,E60 

1,570

2,000 

2,270 

2,450 

2,760 

2,870

2,620 

2,980 

2,900 

3,040 

3,220

3,880 

4,460 

4,620 

4,600 

4,670

3,520 

3,440 

3,870 

3,710 

3,520

Secondfoot -days

2,540 

2,633

3,729

351,956

4,469 

6,606 

17,756 

77,600 

125,190 

78(819 

15,814 

5,102 

3,583

343,841

May

3,910 

4,460 

4,200 

3,470 

3,600

3,590 

3,850 

3,910 

3,130 

2,800

3,240 

4,460 

4,730 

5,470 

3,810

3,620 

4,500 

4,400 

3,350 

2,740

2,560 

3,040 

4,080 

4,890 

5,490

5,940 

6,040 

5,470 

4,510 

3,350 

2,580

Maximum

118 

125 

159

6,380

180 

334 

899 

4,670 

6,040 

4,830 

912 

272 

155

6,040

June

2,170 

2,490 

2,780 

2,670 

2,920

3,810 

4,090 

4,480 

4,570 

4,830

4,510 

4,240

3,760 

3,740 

3,390

3,200 

2,860 

2,320 

1,920 

1,470

1,310 

1,300 

1,320 

1,310 

1,360

1,410 

1,330 

1,190 

1,080 

989

July

Minimum

69

73 

73

69

101 

157 

321 

550 

2,560 

989 

241 

120 

102

69

912 

879 

846 

896 

830

755 

685 

645 

615 

606

601 

578 

560 

550

537

520 

479 

443 

408 

372

337 

312 

300 

286

275

267 

272 

300 

264 

243 

241

Aug.

272 

259 

246 

238 

228

215 

201 

186 

174 

170

168 

163 

155 

145 

140

137 

136 

131 

128 

122

120 

124 

147 

184 

154

137 

129 

125 

125 

122 

121

Mean

81.9 

87.8 

120

962

144 

236 

573 

2,587 

4,038 

2,627 

510 

165 

119

942

Sept.

119 

150 

155 

147 

144

139 

134 

129 

124 

121

118 

118 

116 

119 

122

119 

113 

112 

110 

108

107 

106 

108 

111 

110

108 

106 

104 

104 

102

Runoff in 

acre-feet

5,040 

5,220 

7,400

698,100

8,860 

13,100 

354 220 

ISSjSOO 

248,300 

156,300 

31,370 

10,120 

7,110

681,900

Peak discharge (base. 4,6

6,550 see,-ft.; May 26 

947809 O - 51 - 15

drift- -fO.- Apr. 25 (12:30 a.m.) 6,190 sec.-ft.; May 14 (S:30 a.m.) 7,480 sec.-ft.; June 9 (l a.m.) 5,380 sec.-ft.
214 SAN JOAQUIM RIVER MAIN STEM 

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., R. 22 E., 1.1 miles.downstream from Kerckhoff powerhouse and 1.4 miles upstream 

from Big Sandy Creek. Datum of gage is 563.4 feet above mean sea level (levels by 

Bureau of Reclamation).-; i

Drainage area.'- 1,480 square miles.

Records available.- December 1936 to December 1937, December 1942 to September 1949.

Extremes.- Maximum discharge during year, 8,340 second-feet May 27 (gage height, 20.40 

reet); minimum, 66. second-feet Feb. 5.

1936-37, 1942-49: 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. S, 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 38,200 acre-feet on Sept. 30, 1948, and 

25,100 acre-feet on Sept. 30, 1949.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

6.0 118 9.0 604 13.0 2,120 

6.5 166 9.5 738 14.0 2,720 

7.0 324 10.0 884 15.0 3,440 

7.5 294 10.5 1,050 16.0 4,210 

8.0 380 11.0 1,220 17.0 5,010 

8.5 484 12.0 1,630 18.8 6,660

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,030 

960 

271 

1,100 

958

1,140 

1,050 

1,030 

904 

466

1,010 

955 

1,120 

704 

876

778 

432 

999 

834 

672

650 

712 

642 

352 

1,000

974 

1,020 

991 

924

941 

514

Nov.

1,020 

797 

1,140 

902 

970

802 

253 

943 

901 

913

" 909 

840 

611 

252 

1,020

838 

915 

855 

978 

722

322

769 

758 

656 

256

854 

427 

426 

934 

866

Dec.

807 

706 

840 

405 

465

776 

707 

741 

613 

581

462 

330 

1,020 

460 

671

595 

707 

581 

137 

566

659 

769 

434 

528 

124

197 

683 

623 

733 

537 

558

Jan.

189 

393 

669 

702 

645

691 

627 

350 

316 

871

813 

530 

777 

925 

446

381 

490 

646 

834 

860

884 

483 

382 

687 

893

635 

683 

506 

639 

225 

506

Feb.

607 

595 

514 

738 

290

176 

798 

700 

701 

772

823 

751 

503 

830 

916

777 

784 

891 

709 

781

952 

703 

1,050 

924 

1,120

681 

1,020 

1,020

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Mar.

966 

1,180 

1,330 

2,440 

1,280

781 

1,090 

1,120 

1,200 

1,160

2,580 

1,890 

1,860 

1,480 

1,870

1,920' 

1,940 

1,870 

1,760 

1,540

1,580 

1,520 

1,760 

1,800 

1,730

1,310 

1,250 

1,350 

1,940 

1,920 

1,820

Apr.

1,640 

1,810 

1,820 

1,910 

2,220

2,470 

2,280 

2,270 

2,360 

2,610

2,720 

2,960 

3,290 

3,670 

3,880

3,420 

3,780 

3,660 

3,690 

3,740

4,330 

4,940 

5,240 

4,910 

5,600

4,270 

4,010 

4,510 

4,430 

3,940

Secondfoot -days

26,009 

22,849 

18,015

570,849

18,678 

21,126 

49,237 

102,380 

141,140 

101,410 

42,042 

35,773 

24,719

603,378

May

4,110 

4,930 

4,950 

4,190 

4,150

4,100 

4,350 

4,290 

3,650 

3,310

3,500 

4,570 

5,100 

5,910 

4,330

3,890 

4,730 

5,370 

4,370 

3,890

3,290 

3,180 

4,140 

5,100 

5,820

6,460 

6,610 

6,040 

5,140 

3,970 

3,700

Maximum

1,140 

1,140 

1,020

7,440

925 

1,120 

2,580 5,600' 

6,610 

5,370 

1,910 

1,360 

1,210

6,610

June

3,000 

3,250 

3,610 

3,480 

3,550

4,250 

4,850 

5,060 

5,240 

5,370

5,190 

4,910 

4,450 

4,290 

3,970

3,700 

3,360 

2,790 

2,280 

2,500

2,400 

2,370 

2,390 

2,370 

2,310

1,880 

2,140 

2,370 

2,240 

1,840

July

1,790 

1,760 

1,390 

1,630 

1,910

1,590 

1,300 

1,270 

1,270 

782

1,410 

1,360 

1,430 

1,450 

1,370

1,170 

1,210 

1,260 

1,370 

1,240

1,270 

1,350 

1,150 

1,170 

1,420

1,530 

1,250 

1,400 

1,400 

1,050 

1,090

Aug.

1,260 

1,360 

1,250 

1,260 

1,260

1,180 

1,050 

1,140 

1,160 

1,190

1,210 

1,240 

1,080 

668 

974

1,280 

1,330 

1,050 

1,340 

999

822 

1,290 

1,280 

1,180 

1,200

1,210 

1,140 

1,010 

1,040 

1,230 

1,150

Minimum Mean

271 839 

252 762 

124 581

124 1,560

189 603 

176 754 

781 1,588 

1,640 3,413 

3,180 4,553' 

1,840 3,380 

782 1,356 

668 1,154 

400 824

124 1,653

sept.

1,190 

1,210 

1,100 

866 

972

1,050 

991 

896 

954 

714

486 

952 

724 

942 

904

808 

770 

460 

967 

894

834 

772 

774 

546 

400

766 

620 

753 

766 

638

Runoff in 

acre-feet

51,590 

45,320 

35,730

1,132,000

37,050 

41,900 

97,660 

203,100 

279,900 

201,100 

83,390 

.70,950 

49,030

1,197,000
SAN JOAQUIN RIVER MAIN STEM 215

Millerton Lake at Friant, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 119°42', 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 1949.

Extremes.- Maximum contents during year, 445,800 acre-feet June IS (elevation, 562.1 

reet); minimum, 75,600 acre-feet Sept. 30 (elevation, 434.6 feet).

1941-49: Maximum contents, 473,300 acre-feet June 29, 30, 1948; minimum recorded, 

20,190 acre-feet Nov. 3, 1943 (elevation, 379.6 feet).

Remarks.- Reservoir is formed by gravity-type concrete dam with spillway near center, com-

 pleted 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 thousands of acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

151.4

149.5

146.3

144.7

142.9

141.3

140.0

138. 2

136.2

133.6

131.6

130.3

129.7

129.1

128.7

127.9

126.6

126.4

126.6

126.6

126.4

 126.2

126.0

125.0

125.6

126.4

127.0

127.9

128.7

129.3

129.3

Nov.

13O.3

131.0

132.1

132.9

133.8

134.2

133.8

134.7

135.3

136.2

137.1

137.7

138.0

137.5

138.6

139.3

140.2

140.9

142.0

142.4

142.4

143.1

143.8

144.2

144.0

144.9

145.2

145.2

146.3

147.2

-

Dec.

148.1

148.8

149.5

149.3

149.0

149.8

150.2

150.7

150.9

151.2

150.7

150.2

151.2

151.2

151.4

151.6

152.1

152.6

152.1

152.6

153.1

154., 0

154.5

154.7

154.7

154.7

155.5

156.2

157.1

157.6

158.1

Jan.

157.9

158. 3

159.1

159.8

160.5

161.5

162.4

163.0

163.2

164.4

165.4

166.2

167.4

168.7

169.2

169.7

170.4

171.2

173.0

174.3

175.6

176.4

176.9

177.9

179.0

180.3

181.0

181.6

181.8

181.3

181.3

Feb.

181.3

181.8

181.8

182.4

182.1

181.6

182.1

182.6

182.9

183.4

184.0

184.5

184.3

184.8

185.6

185,9

186.2

186.4

186.4

186.4

187.0

186.7

187.5

188.0

187.6

186.7

186.2

185.6

_

_

-

Mar.

185.1

185.2

186.4

191.6

193.2

194. 0

194.8

195.4

195.9

196.2

199.3

201,2

203.0

203.8

205.2

207.0

208.9

210.4

211.5-

212.4

213.3

214.7

216,5

218.6

220.4

221,9

222.8

224.3

226.4

228.2

229.7

Apr.

330.6

231.9

232.8

233.4

233.7

234. 0

233.7

233.1

232.5

232.2

232.2

232. E

232.8

233.7

235.3

235.9

237.2

238.1

239.4

240.6

243.2

246.9

251.4

254.6

259.9

262.2

264,2

267.2

269.9

270.9

-

Nay

272.3

275.7

278,7

280.4

282.2

283.5

285.3

287.0

287.7

288.4

289.4

293.3

298.6

305.8

309.8

312.7

318.3

325.4

331.0

336.4

340.2

344,0

349.9

357.7

366.8

377.7

388.8

398. O

404.4

407.8

410.4

June

411.3

412.1

413.4

414.3

415.1

417.3

421.6

426.0

430.8

435.2

439.2

442.3

444.5

445.4

445.8

445.4

444.5

441.8

43£.7

435.6

432.1

4g8.6

425.5

422.9

420.3

416.4

413.4

411.3

409.5

406.5

-

July

403-5

400.1

395.9

392.6

389.7

386.3

382.2

378.1

374.1

3618.4

364.0

359.2

354.6

349.1

344. 0

338.7

333.7

328.4

323.5

318.3

313.4

3O8.7

3O3.6

299.0

294.0

289.4

284.2

279.1

274.0

268.5

263.2

Aug.

257.9

253.0

247.8

243.5

238.7

233.7

228.5

223.7

219.5

215.0

. 210.4

206.4

202.1

196.8

192.6

188.8

185.3

181.8

178.7

175.3

171.4

168.7

165.7

163.0

159.8

156.7

153.8

150.9

148.1

145. 8

143.4

Sept.

140.9

138.4

135.8

133.1

130.1

127.6

125.0

122. 3

119.9

116.7

113.7

110.8

108.1

105.9

104. 0

101.8

100.0

97.8

96.3

94.8

93.6

92.0

90.3

87.8

85.3

83.8

81.1

79.1

77.4

75.6

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Oct. 31......... ......

Calendar year 1948..

Peb . 28 ...............

July 31...............

Sept. SO. ..............

Water year 1948-49,.

Elevation 

(feet)t

476.4 

465.8 

473.9 

478.5

-

487.7 

489.3 

504.7 

517.5 

554.0 

553.1 

515.2 

472.2 

434.6

-

Contents 

(acre-feet)

153,100 

129,300 

147,200 

158,100

-

' 181,300 

185,600 

229,700 

270,900 

410,400 

406,500 

263,200 

143,400 

75,600

-

Change In contents 

during month 

(acre-feet)

-23,800 

' +17,900 

+10, 900

+28,800

+23,200 

+4,300 

+44,100 

+41,200 

+139, 5OO 

-3,900 

-143,300 

-119,800 

-67,800

-77,500

t Elevation at 12 p.
216 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River below Frlant, Calif.

Location.- Water-stage recorder, lat. 36 0 59'04". long, 119 0 43'24", in sw£ sec. 7, T. 11

s., K, 21 E., 0.5 mile west of Friant, 1.5 miles downstream from Cottonwood Creek and

2 miles downstream from Frianij Dam. Datum of gage is 254.00 feet above mean s0a level

(levels by Bureau of Reclamation). 

Drainage area.- 1,675 square miles. 

Recofasavailable.- October 1938 to September 1949. October 1907 to December 1913 at site

4.5 miles upstream. December 1913 to September 1938 at site 2.5 miles upstream. 

Average djs charge.- 42 years (1907-49), 2,327 seeond-»feet, including diversions to Madera

canal, 1914-49, and Friant-Kern Canal, 1949. 

Extremes.- Maximum discharge during year, S-,000 second-feet June 18 (gage height, 7.87

reet;; minimum, 129 second-feet Jan. 7.

1907-49: 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. Flow regulated by Millerton Lake beginning in 1944 .(see pre- 

.ng page) and by other reservoirs described ;i.n "Remarks'1 for San Joaquin River below

Kerckhoff powerhouse, Diversion for irrigation through Madera and Friant-Kern Canals 

above station (see 238, 240). 

Cooperation.- Sixteen discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1948-49 (gags height, in feet, 

and discharge In second-feet)

2.4 137 3,3 402 5.2 1,800 

2.5 158 3.6 555 5,8 2,400 

2.7 201 3.9 730 6.3 2,970 

2.9 252 4.3 1,000 6.8 3,580 

3.1 319 4.7 1,320

Discharge, In second-feet, water' year October 1948 to September 1949

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

Opt.

1,950 

1,940 

1,940 

1,930 

1,920

1,900 

1,890 

1,890 

1,880 

1,870

1,870 

1,710 

1,390 

1,150 

1,140

1,130 

1,130 

972 

802 

769

788 

788 

788 

788 

690

582 

582 

582 

538 

480 

480

Nov.

480 

480 

480 

480 

480

485 

485 

485 

485 

460

436 

436 

436 

436 

436

436 

436 

431 

402 

375

384 

366 

334 

334 

334

330 

330 

327 

327 

327

.Dee.

327 

327 

386 

495 

490

49,5 

470 

421 

416 

479

594 

594 

544 

506 

506

495 

419 

327 

327 

323

323

280 

241 

241 

241

241 

241 

241 

241 

241 

241

Jan.

241 

241 

241 

241 

241

214 

152 

150 

ISO 

150

150 

150 

150 

150 

150

150 

150 

150 

152 

150

150 

ISO 

150 

150 

ISO

150 

150 

285 

495 

495 

495

Feb.

482 

436 

468 

495 

490

490 

490 

490 

490 

490

525 

599 

599 

599 

599

599 

599 

69O 

782 

782

776 

776 

742 

81O 

1,210

1,260 

1,260 

1,260

Month

Oqto 

Move 

Dece

Ca

Janu 

Febr 

Mar? 

API* 

May,

June 

July 

Augu 

Sept

Va

lender year 1948

h............... ........................

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

at......................................

ember, .................................. 

ter year 1948-49 .......................

Mar.

1,260 

1,150 

850 

631 

495

495 

586 

891 

1,050 

1,050

1,050 

1,060 

1,060 

1,060 

1,060

1,060 

1,060 

1,110 

1,180 

1,190

1,130 

949 

795 

795 

702

604 

604 

604 

667 

814 

821

Apr.

956 

1,100 

1,100 

1,320 

1,870

2,800 

2,220 

2,310 

2,410 

8,420

2,490 

2,710 

2,890 

2,890 

2,890

2,890 

2,900 

2,900 

2,850 

2,780

2,8OO 

2,830 

2,890 

2,900 

2.8J.O

2,660 

2,660 

2,690 

2,800 

2,980

{Secondfoot -days

38,259 

12,453 

11,713

517,289

6,343 

19,288 

27,833 

74,116 

62,596 

87,830 

84,820 

65,060 

48,350

538,661

May

2,990 

3,010 

3,010 

3,020 

3.0EO

3,020 

3,020 

3,020 

2,940 

2,680

2,590 

2,390 

2,080 

2,080 

2,090

2,040 

1,980 

1,770 

1,280 

986

986 

986 

966 

993 

993

952 

814 

1,210 

1,690 

2,000 

2,000

Maximum

1,950 

485 

594

3,330

495 

1,260 

1,260 

2,980 

3,020 

3,540 

2,860 

2,740 

1,890

3,540

June

2,260 

2,460 

2,540 

2,750 

2,740

2,650 

2,520 

2,530 

?,610 

2,810

2,870 

2,870 

2,890 

3,170 

3,330

3,330 

3,320 

3,540 

5,320 

3,380

3,430 

3,430 

3,310 

3,010 

2,990

2,990 

2,990 

2,800 

2,500 

2,490

July

2,550 

2,730 

2,730 

2,720 

2,710

2,710 

2,700 

2,700 

2,700 

2,690

2.T30 

2,860 

2,860 

2,850 

2,850

2,840 

2,830 

2,810 

2,740 

2,750

2,620 

2,620 

2,610 

2,600 

2,680

2,790 

2,79(5 

2,780 

2,780 

2,750 

2,740

Aug,

2,740 

2,660 

2,530 

2,510 

2,530

2,540 

2,530 

2,420 

2,310 

2,300

2,300 

2,240 

2,180 

2,200 

2,170

2,080 

2,000 

1,900 

1,790 

1,780

1,770 

1,760 

1,790 

1,800 1,900

1,790 

1,780 

1,770 

1,730 

1,680 

1,680

Minimum Mean

480 1,234 

327 415 

241 378

119 1,413

150 205 

436 689 

495 898 

956 2,471 

814 2,019 

2,260 2,928 

2,550 2,736 

1,680 2,099 

1,320 1,612

150 1,476

sept,

1,680 

1,660 

1,660 

1,650 

1,640

1,630 

1,620 

1,610 

1,630 

1,670

1,660 

1,770 

1,700 

1,530 

1,520

1,460 

1,460 

1,460 

1,410 

1,320

1,340

1,340 

1,610 

1,750 

1,740

1,740 

1,890 

1,850 

1,680 

1,670

Runoff IB 

acre -feet

75,890 

24,700 

23,230

1,026,000

12,580 

38,260 

55,210 

147,000 

124,200 

174,200 

168,200 

129,000 

95,900

1,068,000
SAN JOAQUIN RIVER MAIN STEM 217 

San Joaquin River near Mendota, Calif.

Location.- Water-stage recorder, lat. 36°48'35", long. 120°22'35", in s|- sec. 7, T. 13 S., 

k. 15 fcf., 2.5 rtilles downstream fromJIendota Dairi 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 193$ to September 1949.

Average discharge.- 10 years, 1,439 second-feet.

Extremes./- Maximum discharge during year, 427 second-feet June 17 (gage height, 2.76 feet); 

minimum, 13 second-feet Jan. 30, 31, Feb. 7.

1944-49: Maximum discharge, 6,440 second-feet June 19, 1945; maximum gage height, 

10.12 feet Feb. 8, 1945; minimum discharge, 8.1 second-feet Dec, 29, 194?.

Remarks.- Records fair. Plow regulated by Mendota Dam and several reservoirs arid power 

plants above station. Many diversions above station for irrigation. 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 1948 to September 1949

Day

1

2

3 

4 

5

6 

7 

 8 

9 

10

11 

13 

13 

14 

15

16 

17 

18 

19 

2(J

21 

ZZ 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

312 

309 

306 

300 

276

250 

245 

240 

238 

238

242 

242 

240 

235 

208

190 

192 

200 

200 

198

175 

151 

141 

137 

137

134 

132 

132 

134 

132 

128

Nov.

125 

110 

89 

71 

26

29 

36 

37 

44 

62

64 

66 

77 

79 

79

73 

73 

73 

73 

75

75 

75 

75 

75 

75

77 

70 

64 

64 

64

Dec.

57 

48 

48 

46 

46

44 

44 

44 

44 

44

44 

44 

44 

44 

42

37 

29 

27 

27 

34

44 

41 

36 

36 

36

36 

32 

27 

27 

116 

279

Jan.

282 

200 

30 

86 

. 160

205 

202 

172 

120 

56

20 

20 

19 

17 

17

17 

17 

17 

17 

17

34 

58 

77 

89 

87

60 

20

17 

14 

13 

13

Feb.

16 

16 

16 

16 

16

16 

14 

24 

44 

44

42 

41 

37 

42 

64

75 

93 

S3 

93 

93

93 

95 

97 

99 

97

99

119 

158

Month

Ooto 

Hove

Dece

Ca

Janu 

Pebn 

Marc 

Apri

H&V

June 

July 

AUgu 

Sept

wa

rober. ...,........--.--..- ..............

lendar year 1948

ter year 1948-49 .......................

Mar.

170 

200 

202 

185 

153

151 

156 

158 

156 

156

160 

175 

195 

202 

205

200 

202 

215 

230 

235

228 

220 

190 

156 

151

153 

156 

168 

160 

165 

178

Apr.

200 

205 

218 

215 

215

215 

225 

238 

265 

265

265 

268 

265 

270 

291

324 

333 

336 

345 

342

339 

336 

342 

333 

333

330 

330 

327 

324 

318

Secondfoot-clays

6,394 

2,075 

1,547

70,824

2,173 

1,752 

5,631 

8,612 

7j082 

9,863 

10,134 

8,928 

6,823

71,014

May

318 

315 

315 

315 

315

309 

312 

315 

297 

279

260 

248 

252 

235 

212

202 

190 

185 

192 

182

172 

168 

158 

156 

170

172 

168 

165 

168 

165 

172

Maximum

312 

125 

279

539

282 

158 

235 

345 

318 

420 

339 

31.2 

291

420

June

178 

185 

190 

195 

202

218 

242 

260 

285 

306

336 

339 

345 

375 

372

390 

420 

420 

417 

414

411 

408 

387 

381 

366

366 

366 

366 

366 

357

July

339 

330 

B327 

a324 

321

312 

312 

321 

336 

339

339 

339 

330 

327 

330

330 

327 

327 

324 

330

333 

333 

333 

330 

330

327 

327 

321 

315 

309 

312

Minimum

128 

26 

27

11

13 

14 

151 

200 

156 

178 

309 

273 

175

13

Aug.

309 

309 

312 

303

303

306 

309 

303 

291 

276

279 

279 

279 

279 

282

285 

282 

282 

279 

279

276 

273 

273 

273 

279

285 

288 

291 

288 

289 

288

Mean

206 

69.2 

49.9

194

70.1 

62.6 

182 

287 

2E8 

329 

327 

288 

227

195

Sept.

288 

291 

291 

291 

291

291 

268 

242 

238 

238

235 

238 

230 

215 

205

205 

205 

205 

205 

205

202 

202 

202 

195 

195

195 

195 

195 

190 

175

Runoff in 

aare-feet

12,680 

4*120 

3,070

140,560

4,310 

3,480 

11,170 

17,080 

14,050 

19,560 

20,100 

17,710 

13,530

140,900

a No gage-height record; discharge interpolated.
218 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River near Dos Palos, Calif.

Location.- Water-stage recorder, lat. 36°59'40", long. 120°30'00", in Nj- sec. 12, T. 11 

3., 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 1949.

Extremes.- Maximum gage height during year, 3.47 feet Jan. 1 (discharge not determined); 

no flow Dec. 25.

1944-49:- Maximum discharge, 5,630 second-feet Feb. 9, 1945 (gage height, 11.97 feet, 

site then in use); no flow July 27, 28, 1945, Nov. 22-27, 1946, Feb. 9 to Mar. 8, Mar. 

11, 12, Dec. 25, 1948.

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 discharge measurements furnished by Bureau of Reclamation. 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.1 

1.8 

1.9 

2.1 

2.1

1.8 

1.7 

1.7 

1.7 

1.7

1.9

1.7 

1.5 

1.4 

1.3

1.3 

1.2 

1.2 

1.3

1.3

1.2 

1.2 

.9 

.8 

.8

.9 

.8

.7 

.7 

.7 

.7

Nov.

0.6 

.6 

.6 

.5 

.4

.4 

.4 

.3 

.2 

.2

.2 

.3 

.3 

.3 

.4

.3 

.3 

.3 

.3 

.3

.3 

.2 

.3 

.3 

.3

.4 

.3

.2 

.2 

.2

Dec.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

1.4 

110

Jan.

260 

250 

111 

56 

88

138 

164 

169 

148 

108

80 

57 

46

37 

38

34

33 

31 

31 

31

36 

50 

83 

65 

68

69 

58 

36 

26 

3.9 

2.8

Feb.

2.4 

3.1 

4.4 

3.2 

1.5

1.4

1.3 

1.3 

1.3 

1.7

1.8 

1.9 

1.9 

2.0 

2.0

2.3 

2.5 

3.0 

2.7 

.7

.7 

.7 

.7 

.8 

.8

.9 

.8 

.9

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 .......................

ter year 1948-49 .......................

Mar.

1.2 

1.2 

1.2 

1.2 

1.2

1.1 

1.2 

1.1

1.1 

1.0

1.1 

1.2 

1.2 

1.3

1.6

1.5 

1.5 

1.4 

1.7 

1.7

1.7 

1.7 

1.5 

1.4 

1.3

1.2 

1.2 

1.3 

1.5 

1.3 

1.2

Apr.

Secondfoot-days

42.1

9.9

115.5

3,023.8

J , 407 . 7 

48.7 

41.0 

83.4 

124.0 

121.9 

68.0 

46.2 

29.9

3,138.3

1.0 

1.1 

1.0 

1.0 

.9

.8

:9

.9 

1.0 

1.2

1.0 

1.0 

.0

.1

.9 

.4

.6 

.8 

.9

.1

.9 

.9 

.5 

.6

.6 

.6 

.6 

.6 

.4

May

4.4 

4.6 

4.6 

4.4 

4.2

4.2 

4.0 

4.4 

4.6 

3.9

3.7 

3.4

3.1

2.8

2.5 

2.3 

2.1 

11 

19

3.1 

2.8 

2.8 

2.4 

2.3

2.5 

2.3 

2.3 

2.4 

2.4 

2.4

Maximum

2.1 

.6

110

454

[" 260 

4.4 

1.7 

5.5 

19 

8.0 

2.8 

1.9 

1.8

260

June

2.3 

2.4 

2.4 

2.5 

2.5

2.5 

3.7 

5.5 

7.1 

8.0

6.5 

6.1 

5.1

5.3

5.3 

5.7 

6.1 

5.9 

5.9

3.5 

2.2 

2.7 

2.7 

2.7

2.7 

2.7 

2.5 

2.5 

2.5

July

2.7 

2.5 

2.7 

2.8 

2.8

2.7 

2.3 

2.3 

2.3 

2.3

2.3 

2.2 

2.1

1.9

2.1

2.0 

2.0 

2.0 

2.1

2.2 

2.4 

2.4 

2.4

2.5

1.9 

1.5

1.6 

1.7 

1.7

1.7

Minimum

0.7 

.2 

.1

0

2.8 

.7 

1.0 

.8 

2.1 

2.2 

1.5 

1.2 

.4

.1

Aug.

1.7 

1.6 

1.6 

1.5 

1.4

1.4 

1.6

1.8 

1.9 

1.8

1.6 

1.5

1.4

1.4

1.5 

1.5 

1.4 

1.3 

1.3

1.2 

1.2 

1.2 

1.2 

1.4

1.4

1.4 

1.7 

1.8 

1.7

1.5

Mean

1.36 

.33 

3.73

8.26

77.7 

1.74 

1.32 

2.78 

4.00 

4.06 

2.19 

1.49 

1.00

8.60

Sept.

1.3 

1.3 

1.2 

1.3

1.5

1.8 

1.7 

1.6 

1.4 

1.3

1.3

1.3 

1.2

1.1

1.0 

.9 

.9 

.9 

.8

.8 

.7 

.6 

.4 

.4

.4

.4 

.4 

.4 

.4

Runoff in 

acre-feet

84 

20 

229

6,000

' 4,780 

97 

81 

165 

246 

242 

135 

92 

59

6,220
SAN JOAQUIN RIVER MAIN STEM 

San Joaquin River near El Nido, Calif.

219

Location.- Water T stage recorder, lat. 37°06'45", long. 120 0 35'20", in NE^ sec. 31.T. 9 S., 

K. 13"E., on Chamberlain Slough 100 feet downstream from head and 5 miles southwest of 

El Nido. Datum of gage is 99.14 feet above mean sea level (Bureau of Reclamation bench 

mark).

Drainage area.- 6,940 square miles.

Records available.- October 1939 to June 1949 (discontinued).

Extremes.- Maximum discharge during period October 1948 to June 1949, 84 aecond-feet Jan. 

'd (gage height, 2.75 feet); no flow during-several months (result of irrigation operations ). . .

1944-43: Maximum discharge, 3,120 second-feet Feb. 9^ 1945 (gage height, 10.84, 

present datum); no flow at times (result of irrigation operations)

Remarks.- Records fair. Practically entire flow of river and tributaries diverted during 

irrigation season. Record shows flow in main channel of San Joaquin River only and 

does not include flow in sloughs. Same gage used for Chamberlain Slough near El Nido. 

For record of flow in Chamberlain Slough see'page 247. During period of high water, 

flow bypasses this station through Maripose Slough. No flow in Mariposa Slough during 

water year 1948-49.

Cooperation.- Five discharge measurements furnished by Bureau of Reclamation. 

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.1 

0 

0 

.7 

2.4

.2

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

Nov. Dec. Jan.

15 

75 

74

35 

16

30 

51 

63 

64 

52

35 

24 

15 

10 

9.0

7.8 

6.3 

5.6 

5.2 

6.1

4.8 

4.8 

5.6 

10 

16

18 

20 

17 

9.5 

5.6 

1.5

Feb.

0.5 

.3

.3 

.3 

.4

.3 

.5 

.2 

2.2

1.4

2.1 

1.7 

.8 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

.2 

.3 

.4

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Th

Lendar year 194£ 

ary

h. ......................................

Mar.

0.4 

.2 

.2 

.3

1.0

1.4 

1.7 

2.4 

1.3 

1.1

.9 

2.2 

2.8 

2.8 

1.8

.6 

0 

0 

.2 

.2

.2 

1.3 

1.4 

.8 

.5

.4 

,4 

1.0 

.4 

0 

0

Apr.

0 

0

.1

.2 

.6

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

0 

0 

0

0 

0 

0

.1

.5

Secondfoot-days

4.4 0 ' 

0

1,133.7

711.8 

12.1 

27.9 

1.6 

11.8 

0

-

May

0.4 

.8

1.1 

.2 

0

0 

0 

.6 

1.8 

1.4

.4 

0 

0 

0 

0

0 

.8 

0 

.3 

.8

1.4 

1.2 

.6 

0 

0

0 

0 

0 

0 

0 

0

Maximum

2.4 

0 

0

257

75 

2.2 

2.8 

.6 

1.8 

0

-

June July

Minimum

0 

0 

0

0

1.5 

0 

0 

0 

0 

0

-

Aug.

Mean

0.14 

0 

0

3.10

23.0 

.43 

.90 

.05 

.38 

0

-

Sept.

Runoff In 

acre-feet

8.7 

0 

0

2,240

1,410 

24 

55 

3.2 

23 

0

1,520
220 SAN JOAQUIN RIVER MAIN STEM

San Joaquin River at Fremont Ford Bridge, Calif.

Location. - Water-stage recorder, lat. 37°19', long. 120°56', in Orestimba Grant, at FremorvfTFord 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 1949. February 19.37 to September 1949 in 

reports or Division of Water Resources, Department of Public Works, State of California.

Extremes . - Maximum discharge during year, 567 second-feet Mar. 8 (gage height, 61.05 feet); 

 minimum, 46 second-feet Dec. 21.

1944-49: Maximum discharge, 4,140 second-feet Feb. 12, 1945 (gage height, 68.60 

feet); minimum, 41 second-feet Mar. 11, 1948,

Remarks.- Records fair. Some regulation by reservoirs and power plants above station. 

t>ee "Kemarks" for stations upstream. Practically entire flow of river and tributaries 

diver ted 1 during irrigation season; low flows consist mainly of return water. During 

periods of high flow, some water bypasses this station through Mud Slough.

Cooperation.- Four

the state or UE

Disc

Day

1 

3 

2 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

33 

24 

25

26 

27 

28 

29 

30 

31

Oct.

238 

236 

' 233 

233 

238

222 

209 

189 

16O 

141

131 

127 

122 

125

127

125 

124 

121 

114 

108

106 

110 

117 

122 

a!20

al!2 

a!08 

alOl 

a 98 

992 

a89

Nov.

S2 

84 

83 

86 

83

86 

88 &-> 

84 

82

80 

79 

78 

76

73

72 

73 

76 

74 

75

74 

72 

70 

70 

69

73 

68 

67 

63 

63

discharge measurements furnishe 

ilifornia,

harge, in second-feet, water year Oc

Dec.

62 

58 

60 

58 

59

62 

64

63 

62 

61

59 

60 

60 

60 

57

52 

54 

51 

50 

48

47 

47 

47 

47 

49

54 

55 

57 

62 

64 

64

Jan.

62 

62 

82 

132 

134

132 

128 

131 

187 

2O7

217 

245 

244 

222 

207

195 

183 

171 

170

173

165 

164 

159 

158 

156

159 

160 

162 

159 

146 

141

Feb.

127 

118 

114 

111 

111

111 

113 

113 

115 

187

221 

209 

187 

?04 

200

187 

167 

153 

136

127

124 

121 

113 

108 

107

111 

124 

132

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lenclar year 1948

ter year 1948-49 .......................

Mar.

154

160 

160 

164 

232

434

537 

559 

478 

369

313

299 

311 

422 

450

412 

352 

303 

273 

269

315 

446 

458

431 

460

472 

436 

371 

327 

273 

253

d by Bureau of Reclamation and eight by

tober 1948 to September 1949

Apr.

235 

219

207 

206 

200

186 

159 

138 

141 

152

138 

135 

152 

154 

148

146 

144 

165 

178 

197

200 

202 

194 

183 

187

199 

204 

200 

202 

197

Secondfoot-days

4,498 

2,290 

1,753

49,220

5,013 

3,951 

10,893 

5,368 

8,561 

4,410 

2,265 

2,083 

2,726

53,811

May

197 

214

219 

219 

212

200 

204 

206 

204 

229

240 

242 

231 

224 

251

260 

301 

374 

407 

446

455 

475 

450 

396 

356

325 

254 

204 

184 

189 

191

Maximum

238 

88 

64

694

245 

221 

559 

235 

475 

212 

98 

86 

110

559

June

195 

212 

192 

183 

183

173 

165 

156 

141 

129

128 

125 

128 

125

115

110 

114 

124 

12S 

147

154 

154 

158 

162 

165

154

142 

128 

114 

106

July

98 

92 

92 

93

87

80 

80 

83 

83 

81

79 

76 

74 

75 

72

69 

67 

70 

67 

62

66 

62 

67 

66 

60

59 

58 

57 

60 

64 

66

Aug.

69 

64 

64 

61 

61

63 

61 

60 

62 

69

63 

60 

62 

66 

67

71 

70 

66 

63 

63

63 

68 

64 

67 

69

69 

78 

79 

76 

79 

86

Sept.

90 

89 

87 

94 

100

104 

106 

106 

99 

100

107 

110 

108 

106

no

104 

102 

94

100 

92

90

90 

83 

72 

71

79 

70 

60 

54 

49

Minimum Mean »««£

89 145 8,920 

63 76.3 4,540 

47 56-5 3,480

42 134 97,630

62 162 9,940 

107 141 7,840 

154 351 21,610 

135 179 10,650 

184 276 16,980 

106 147 8,750 

57 73.1 4,490 

60 67.2 4,130 

49 90.9 5,410

47 147 106,700

a Ho gage-height record; discharge computed on basis of reeprds for Salt Slough near Los Banos and 

unpublished records for Bear Creek near mouth.
SAN JOAQUIN RIVER MAIN STEM 221

San Joaquin River near Newman, Calif.

Location.- Water-stage recorder, lat. 37°21'Q2", long. 120°58'34", in SW£ sec. 3, T. 7 S., 

" 'ft". "9'E., at bridge on Hills Perry road, 300 feet downstream from Merced River and 3.6 

miles northeast of Newman. Datum of gage is 51.0 feet above datum of Corps of Engineers .

Drainage area," 9,990 square miles.

Records availably.- April 1912 to September 1949. Prior to Oct. 1, 1937, and subsequent 

to Oct. I, 1943, flow.that bypassed Station at discharges above about 9,000 secondfeet not included in records.

Average discharge.- 37 years, 2,394 second-feet.

Extremes.- Maximum discharge during year, 2.270 second-feet May 30 (gage height, 6.10 

'reet); minimum, 180 second-feet July 28 (gage height, 1.78 feet).

1912-49: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gage height, 18.50 

feet); minimum, 16 second-feet Aug. 9, 10, 1924.

Remarks.- Records good. 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.- Pour discharge measurements furnished by Bureau of Reclamation and eight by 

state oi' California.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

8 

3 

4 

5

6 

7e

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

80

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

oot.

489 

472 

448 

448 

446

432 

424

408 

361 

331

327 

342 

331 

339 

335

339 

323 

312 

298 

283

276 

276 

280 

283 

276

265 

265 

262 

247 

247 

247

Nov.

244 

240 

240 

246 

237

233 

237 

237 

230 

226

226 

223 

220 

220 

220

209 

220 

213 

213 

2l6

213 

2l3 

209 

206 

209

216 

209 

209 

213 

213

Dec.

213 

203 

213 

269 

216

223 

226 

228 

220 

216

213 

209 

213 

213 

213

213 

216 

213 

213 

209

203 

196 

196 

196 

203

213 

216 

223 

233 

233 

233

Jan.

230 

230 

237 

283 

290

283 

280 

280 

323 

361

392 

436 

448 

440 

428

408 

400 

388 

392 

388

384 

380 

377 

380 

377

377 

380 

377 

369 

358 

346

Feb.

335 

327 

320 

312 

308

309 

312 

308 

339 

396

444 

428 

408 

428 

428

416 

396 

380 

369 

361

354

350 

339 

331 

323

320 

327 

331

Month

OCtO

Hove

Decs

Ca

Janui 

Febr 

Marc 

Apfi 

Hay,

June 

July 

Augu 

Sept

wa

lendar year 1948

ter year 1948-49 ............ » < .........

Mar.

350 

361 

361 

373 

722

828 

860 

1,030 

1,060 

985

935 

945 

1,170 

1,240 

1,190

1,140 

1,060 

995 

960 

985

1,240 

1,240 

1,200 

1,180 

1,220

1,240 

1,170 

1,100 

1,010 

995 

985

Apr.

960 

960 

955 

935 

905

712 

556 

523 

506 

489

456 

400 

373 

369 

350

358

342 

377 

388 

377

361 

373 

323 

312 

327

350 

350 

350 

342 

342

Seoondfoot-days

10,414 

6,654 

6,635

177,705

11,028 

9,998 

30,130 

14,721 

19,609 

25,123 

7,341 

7,857 

7,899

157,403

May

346 

380 

392 

400 

392

361 

373 

392 

424 

444

420 

420 

396 

400 

464

502 

535 

594 

654 

748

792 

810 

802 

761 

671

594 

506 

436 

950 

2,120 

2,130

Maximum

489

244 

E33

3,540

448 

444 

1,240 

960 

2,130 

1,680 361

294 

305

2,130

June

1,680 

1.-300 

1,060 

910 

1,080

1,170 

1,130 

1,420 

1,490 

1,400

1,350 

1,360 

1,340 

1,060 

720

628 

573 

514 

518 

535

497 

460 

428 

388 

388

384 

373 

346 

316 

305

July

301 

294 

294 

301 

290

262 

244 

237 

233 

233

254 

244 

230 

220 

206

196 

206 

213 

240 

233

233 

226 

216 

216 

216

216 

200 

190 

206 

233 

258

Minimum

247 

206 

196

134

230 

308 

350 

312 

346 

305 

190 eis

200

190

Aug.

269 

240 

213 

2l3 

230

247 

244 

265 

244 

244

285 

254 

258 

272 

294

294 

287 

272 

251 

226

240 

269 

272 

272 

269

237 

233 

233 

262 

251 

237

Mean

336 

228 

214

486

356 

357 

972 

491 

633 

837 

237 

253 

263

431

Sept.

230 

230 

230 

254 

269

269 

280 

283 

298 

305

365 

294 

298 

290 

283

287 

290 

294 

298 

287

272 

254 

240 

233 

220

237 

240 

220 

209 

200

Runoff In 

acre-feet

20,660 

13,200 

13,160

352,500

21,860 

19,830 

59,760 

29,200 

38,890 

49,830 

14,560 

15,580 

15,670

312 j 200
222 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 burham Perry highway bridge, 3 miles downstream from Stanislaus River and 3.4 miles 

northeast of Vernalis, San Joaquin County. Datum of gage is 8.4 feet above datum of 

Corps of Engineers.

Drainage area.- 14,010 square miles.

Records available.- July 1922 to September 1949 (1922-23, 1925-29, low-water records only).

Average discharge.- 20 years (1929-49), 5,049 second-feet.

Extremes.- Maximum discharge during year, 5,340 second-feet May 17'(gage height, 11.52 

feet); minimum, 362 second-feet Aug. 5, 6.

1922-49: 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 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.- Three discharge measurements furnished by Bureau of Reclamation and seven by 

the state of California.

Revisions (water-years).- W 841, W 881: 1936. W 931: 1940.

Discharge, In second-feet, water year October 1948 to September 1949

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.

1,600 

1,640 

1,730 

1,700 

al,600

al,600 

al,700 

al,650 

al,600 

al,550

al,490 

al,4SO 

al,600 

al,580 

al,550

al,650 

al,700 

al,550 

1,480 

1,510

1,490 

1,500 

1,510 

1,510 

1,480

1,410 

1,400 

1,420 

1,440 

1,460 

1,460

Nov.

1,450 

1,430 

1,510 

1,480 

1,480

1,500 

1,500 

1,500 

1,400 

1,430

1,430 

1,440 

1,480 

1,520 

1,540

1,540 

1,530 

1,540 

1,570 

1,570

1,600 

1,580 

1,500 

1,490 

1,510

1,510 

1,450 

1,450 

1,460 

1,380

Dec.

1,420 

1,430 

1,450 

1,430 

1,400

1,380 

1,350 

1,380 

1,440 

1,490

1,470 

1,420 

1,400 

1,360 

1,390

1,430 

1,470 

1,660 

1,640 

1,520

1,420 

1,440 

1,440 

1,470 

1,650

1,620 

1,450 

1,450 

1,650 

1,770 

al.800

Jan.

al.SOO 

al,700 

1,370 

1,230 

1,440

1,520 

1,540 

1,520 

1,520 

1,450

1,380 

1,700 

1,940 

1,870 

1,820

1,760 

al,700 

al,500 

al,600 

al,950

2,180 

1,950 

2,080 

1,900 

1,640

2,030 

2,190 

2,170 

2,080 

1,850 

1,580

Feb.

1,400 

1,430 

1,480 

1,540 

1,500

1,520 

1,470 

1,390 

1,800 

1,820

1,650 

1,610 

1,550 

1,470 

1,400

1,450 

1,450 

1,430 

1,380 

1,310

1,260 

1,170 

1,210 

1,170 

1,180

1,190 

1,180 

1,210

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

nber. ...................................

lender year 1948 

ftry

h. ......................................

ter year 1948-49 .......................

Mar.

1,090 

1,200 

1,370 

1,700 

3,770

3,210 

2,440 

2,130 

2,230 

2,600

2,920 

3,340 

4,240 

4,300 

3,940

3,940 

3,990 

4,000 

3,930 

3,910

3,990 

3,590 

4,150 

4,570 

4,730

4,810 4,750" 

4,110 

3,820 

4,250 

4,520

Apr.

4,490 

4,130 

4,000 

2,920 

2,380

2,540 

2,260 

1,830 

1,530 

1,660

1,860 

1,750 

2,010 

1,570 

1,540

1,730 

1,800 

1,870 

1,770 

1,600

1,340 

1,300 

1,240 

1,230 

1,260

1,270 

1,360 

1,580 

2,620 

3,290

Secondfoot-days

48,010 

44,770 

46,090

775,566

53,960 

39,620 

107,540 

61,730 

109,420 

60,075 

17,440 

18,662 

' t 21,437

628,754

May

3,430 

3,440 

3,470 

3,720 

3,590

3,420 

3,060 

2,670 

2,580 

2,730

2,750 

2,710 

2,870 

3,450 

4,130

5,020 

5,080 

4,360 

4,470 

4,770

4,610 

4,030 

3,520 

2,710 

2,180

1,920 

2,520 

3,850 

4,090 

4,020 

4,250

Maximum

1,730 

1,600 

1,800

ll,6OO

2,190 

1,820 

4,810 

4,490 

5,080 

4,290 

762 

845 

830

5,080

June

4,290 

3,560 

3,140 

2,710 

2,4OO

2,^300 

2,430 

2,620 

2,860 

2,900

2,940 

2,780 

2,880 

2,810 

2,330

1,950 

1,670 

1,450 

1,380 

1,320

1,260 

1,100' 

1,030 

940 

870

870 

875 

850 

785 

775

Minimum

July

694 

654 

674 

734 

762

710 

69O 

622 

575 '589

626 

618 

566 

547 

511

538 

508 

520 

511 

487

502 

493 

484 

517 

535

50g 

442 

408 

431 

464 

526

1,400 

1,380 

1,350

324

1,230 

1,170 

1,090 

1,230 

1,920 

775 

.408 

382- 

589

382

Aug.

544 

487 

467 

420 

388

382 

456 

523 

532 

517

535 

553 

582 

614 

638

630 

626 

600 

582 

614

674 

762 

734 

690 

714

710 

706 

785 

845 

714 

638

Mean

1,549 

1,492 

1,487

2,119

1,741 

1,415 

3,469 

2,058 

3,530 

2,002 

563 

602 

715

1,723

Sept.

614 

589 

642 

726 

766

754 

730 

642 

622

646

706 

706 

706 

710 

742

800 

770 

770 

850 

770

754 

714 

682 

638 

714

770 

734 

722 

722 

746

Runoff In 

acre-feet

95,230 

88,800 

91,420

1,538,000

107,000 

78,590 

213,300 

122,400 

217,000 

119,200 

34,590 

37,020 

42,520

1,24?, 000

a No gage-height record; discharge computed on basis of combined flow of San Joaquin River near 

Mewman, Tuolumne River at Modesto, and Stanislaus River at Rlpon.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

\

Florence Lake near Big Creek, Calif.

823

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 1949.

Extremes.- Maximum contents during year, 64,400 acre-feet July 3 (elevation, 7,327.46 

reeth minimum, 173 acre-feet Dec. 6 (elevation, 7,223.61 feet).

1925-49: Maximum contents, 65,700 acre-feet July 16, 1935 (elevation, 7,328.8 

feet); no available contents Ocf, 2-4, 1926, Nov. 30 to Dec. 2, 1927.

Remarks.- Lake is formed by multiple-arch concrete dam; storage began in April 1925. 

usable capacity, 64,400 acre-feet between elevations 7,220.9 feet (throat of venturl 

tube In Ward tunnel intake) and 7,327.5 feet (top of spillway drum gates) above mean 

sea level. Additional storage of 168 acre-feet is not available for diversion. Water 

is diverted through Ward tunnel to Huntington Lake and used for power development in 

Big Creek plants. Records, 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 1948 to September 1949

Day

1

9

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.

18,300

17,700

17,000

16,300

15,600

14,800

14,000

13,100

12,200

11,300

10,500

9,660

8,860

8,200

7,640

7,080

6,600

6,170

5,740

5,320

4,900

4,330

3,700

3,110

2,580

2,110

1,770

1,490

1,120

975

982

Nov.

1,020

1,060

1,100

1,130

654

295

276

305

331

355

378

402

437

447

462

485

507

522

547

559

566

333

277

290

298

298

298

302

301

300

-

Dec.

302

234

190

178

174

173

174

178

180

180

179

178

176

176

175

178

179

180

183

185

186

183

181

180

179

181

181

182

187

191

191

Jan.

al91

Feb.

_

_

-

_

-

_

_

_

_

-

J90

190

190

190

190

190

190

191

201

208

208

208

208

208

208

208

208

208

_

_

-

Mar.

212

214

214

215

216

216

216

217

217

223

223

224

226

244

246

245

245

256

254

245

245

241

241

241

244

254

27Q

263

251

241

243

Apr.

245

248

259

273

293

284

268

287

330

410

477

533

585

630

606

614

635

672

696

751

915

1,090

1,460

1,820

2,070

2,070

2,110

2,370

2,600

2,820

-

May

3,260

3,990

4,350

4,520

4,690

4,890

5,300

5,630

5,650

5,620

5,710

6,080

6,660

7,260

7,360

7,630

8,230

8,560

8,590

8,400

8,260

8,420

9,120

11,000

12,300

14,600

17,300

19,600

21,300

22,300

22,700

June

22,700

22,900

23,200

23,400

23,900

25,300

27,200

29,400

31,800

34 , 400

37,300

39,800

42,000

44.100

46,100

48,100

50,000

51,600

53,000

54 , 000

54,900

55,800

56,800

57,800

58,900

60,000

61,100

62,000

62,800

63,500

-

July

63,900

64,300

64,400

64,300

64,200

64,100

64,100

64,100

64,100

64,100

64,100

64,100

64,100

64,000

64 , 000

63,900

63,700

' 63,600

63,300

63,000

62,700

61,800

60,600

60,100

60,300

60,500

60,100

59,300

58,500

57,700

57,000

Aug.

56,300

55,600

55,100

54,800

54,500

54,100

53,700

53 , 200

52,700

52,200

51,600

50,900

50,300

49,600

48,800

48,100

47,300

46,400

45,500

44,400

43,400

42,600

41,900

41,000

40,100

39,100

38 , 000

36,900

35,800

35,200

35,300

Sept.

35,400

35,500

35,600

35,700

35,800

35,900

36,000

36,000

36,100

36,200

36,200

36,300

36,300

36,400

36,500

36,500

36,600

36,600

36,700

36,700

36,800

36,800

36,900

36,900

36,900

37,000

37,000

37,000

37,000

37,100

-

a Mo gage-height record; contents estimated by Southern California Edison Co.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Calendar year 1948,.

Apr. 30. ..............

Sept. 30. ..............

Water year 1948-49. .

Elevation 

(feet)t

-

7,239.50

7,296.55

-

Contents 

(acre-feet)

-

243

2,820

37,100

-

Change in contents 

during month 

(acre-feet)

+1

+2,580

+1,800

+18,100

t Elevation at 12 p.m.
224 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 

South Fork San Joaquln River near Florence Lake, Calif.

Location.- Water-stage recorder, Parshall flume and concrete control, lat. 37°16'20", long.

 lia°'57'50" , in SE* sec. 36, T. 7 S,, R. 27 E., just downstream from spillway of Florence

Lake Dam, 6 miles upstream from Bear Creek. Altitude of gage, about 7,200 feet (from

topographic map). 

Drainage area.- 171 square miles.

Kecords available.- December 1921 to September 1949. 

Average aisgnargeT- 26 years (1982-31, 1932-49), 290 second-feet, combined flow of South

Fork san JOaquin River and Ward tunnel at Intake. 

Extremes.- Maximum discharge during year, 13 second-feet July 4 (gage height, 9.54 feet);

no flow at times during January and February.

1921-49: Maximum discharge, 4,320 second-feet June 6, 1940 (gage height, 15.38

feet); no flow at times. 

Remarks.- Records good except .those for periods of ice effect, which are fair. Flow reg-

 ulated by Florence Lake beginning in 1925 (see preceding page) and by diversion into

Ward tunnel (see following page). 

Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by

 Sbuthern" California Edison Co., obtained in connection with a Federal power Commission 

project.

Rating table, water year 1948-49, except periods of Ice effect, 

(gage height, in feet, and discharge, in second-feet)

7.82 0 8.3 0.8 9,0 3.6 

7.9 .1 8.4 1.1 9.2 4.5 

8.0 .2 8.5 1.5 9.4 6.6 

8.1 .4 8.6 1.8 

8,£ .6 8.8 2.6

Discharge, In second-feet, water year October 1948 to September 1949 -

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

51

Oct.

3.6 

3.6 

3.6 

3.6 

3.6

3.5 

5.5 

5.4 

3.4 

3.4

3.3 

3.5 

3.3 

5.2 

3.2

3.4 

3.5 

5.5 

3.4 

5.4

5.4 

3.5 

5.5 

5.2 

5.2

5.1 

3.2 

5.4 

5.5 

5.2 

5.2

Nov.

5.2 

5.2 

3.3 

5.2 

3.2

5.1 

3.0 

2.9 

2.9 

5.1

3.4 

5.5 

5.3 

5.4 

5.6

5.7 

3,7 

3.7 

3.7 

3.7

5.7 

3.7 

5.6 

3.5 

5.4

5,5 

5.5 

5.2 

3-1 

5.0

Dec.

5.0 

*5.0 

2.9 

2.8 

2.6

2.5 

2.5 

2.2 

2.0 

1.9

1.7 

1.4 

1.5 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.3 

1.5 

1,3 

1.5

1.5 

1.3 

1.5 

1.5 

1.5 

1,5

Jan.

1.3 

1.5 

1.5 

1.5 

1.5

1.5 

1.3 

1.3 

1.3 

1.3

1.3 

.5 

0 

0 

0

0 

0 

0 

0 

0

0 

0

a 

a

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

.4

.6 

.5

a 

a

0 

0

a 

a 

a 

a

a 

a 

a 

a

a

a 

a 

a

Month

Octo 

Nove 

Dece

Ca

Janui 

Febr 

Marc 

Aprl

Mav

June 

July 

AugU 

Sept

wa

her. ....................................

lender year 1948 

ftry

h.......................................

f

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

ter year 1948-49 .......................

Mar.

0.1

a 

a 

a 

a

a 

a 

a 

a 

a

a 

a 

a 

a 

a

a 

a

.2

a 

a

a 

a 

a 

a 

a

.2 

.2

a 

a 

a 

a

ftpr.

0.1 

.2 

.2 

.2 

.5

.2 

.2 

.3

.3 

.4

.4 

.4 

.4 

.4 

.3

.5 

.2 

.2 

.2 

.2

.1

a 

a 

a 

a

a 

a 1.2

2.3 

2.3

Secondfoot-days

104.5 

100.4 

53.8

681.5

15.0 

2.7 

5.4 

11,9 

46.9 

85.1 

115.2 

123.0 

122.3

^784.3

May

2.3 

2.4 

2.4 

1.6 

.9

.9 

.9 

.9 

3.0 

.9

1.1 

1.2 

1.5 

1.4 

1.4

1.4 

1.5 

1,5 

1.5 

1.5

1.4 

1.4 

1.4 

1.4 

1.5

1-5 

1.8 

2.0 

2.1 

2.1 

2.1

Maximum

3.6 

3.7 

5.0

4.1

1.5 

.6 

,2 

2.3 

2.4 

3.7 

6.4 

4.4 

4.1

6.4

June

2.1 

2.1

2a 

2.1

2.4 

2.2 

2.3 

2.3 

2,5

2.4 

2,5 

2.5 

2.5 

2.6

2.6 

2.7 

5.5 

5.5 

3.4

3,4 

3.4 

3.4 

5.5 

5.5

5.6 

3.6 

5.7 

3,6 

3.6

July

3.6 

5.6 

4.1 

6,4 

3.7

5,6 

5.6 

5.6 

5.6 

3.6

5.6 

5.6 

3.6 

5.6 

3.6

3.6 

3.5 

3,5 

5.5 

5.5

3.5 

5.4 

5.5 

3.3 

5.5

3.4 

5.9 

4.1 

4.0 

4.0 

4.0

Aug.

3.9

3.9 

5.9 

5.9 

3.8

3.8 

3.9 

3.9 

3,9 

3.8

5.7 

3.7 

5,7 

3.6 

3.4

3.3 

5.9 

4.5 

4.5 

4,5

4.3 

4.4 

4.2 

4.2 

4.2

4.2 

4.2 

4.1 

4.1 

4.1 

4.1

Minimum Mean

5,1 5.57 

2.9 3.55 

1.3 1.74

0 1.86

0 .48 

0 .10 

.1 .11 

.1 .40 

.9 1,51 

2.1 2.84 

3.5 3.72 

3.5 .5.97 

4.0 4.08

0 2.15

Sept.

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 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

Runoff In 

acre-feet

207 

 199 

107

1,350

30 

5.4 

6.7 

24 

93 

169 

228 

244 

243

1,560

* Winter discharge measurement made on this day. 

Mote.- Stage-discharge relation affected by Ice Dec. 27 to Jan. 18, Jen. 22-25.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 225 

Ward tunnel at intake, Calif.

Location.- Water-stage recorders, concrete control, and venturi meter, lat. 37°17', long. 

118"58', in SEt 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 1949.

Average discharge.- 23 years (1925-3-1, 1932-49), 257 second-feet.

Extremes.- Maximum daily discharge during year, 773 second-feet June 1-3; minimum daily, 

 0.'3 second-foot Nov. 8, 12, 13, 16.

1925-49: Maximum daily discharge,, 1,99(1 second-feet Apr. 30, 1926; no flow at times.

Remarks.- Records excellent except those for Mar. 17-25, which are good. Ward tunnel diverts from Florence Lake, a reservoir on South Fork San Joaquin River, to Huntlngton 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 eonnection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

5 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

333 

330 

326 

361 

375

372 

408 

462 

455 

448

443 

432 

423 

341 

291

285 

244 

224 

220 

214

208 

266 

285 

272 

259

244 

173 

170 

197 

79 

12

Nov.

0.6 

.7 

.7

.6 

256

188 

26 

.3

.4 

.4

.4 

.3 

.3

.4 

.4

.3

.4 

.4 

.4 

.4

.4 

117 

37 

10

11

11 

9.9 

9.9 

9.5 

9.9

Dec.

9.2

45 

30 

18

14

14 

1,4 

15 

16 

17

17 

16

16 

16

15

16 

18 

18 

18 

20

21 

20 

19 

18 

17

18 

18 

18 

20 

22 

24

Jan.

24 

23 

21 

20 

19

19 

19 

20 

19 

18

17 

a!6 

16 

16 

17

17

17 

18 

18 

19

19 

21 

22 

22 

22

23 

23 

23 

22 

22 

21

Month

Ooto 

Hove 

Deee

Ca

Janu 

Pebr 

Hare 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

Feb.

21 

21 

21 

21 

21

21 

22 

21 

22

24

26 

26 

26 

27 

27

27 

28 

29 

30 

31

29 

29 

29 

30

29

31 

31 

30

lendar year 1943 

ai*y

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

ter year 1948-49 .......................

Mar.

32 

35 

35 

35 

32

35 

41 

44 

45 

44

42 

42 

46 

53 

57

57 

a52 

a56 

aS3 

a57

a57 

a55 

a51 

a50 

a48

54 

68 

74 

61 

56 

53

Apr.

56 

58 

64 

72 

86

96

84 

78 

98 

140

193 

231 

265 

309 

320

309 

330 

344 

378 

385

455 

517 

434 

444 

43.5

441 

441 

452 

441 

417

Secondfoot -days

9,152 

703.0 

577.2

82,893.0

613 

730 

1,530 

8,373 

17,073 

10,361 

10,401.5 

13,500.6 

45,1

73,059.4

May

426 

420 

514 

522 

528

533 

542 

556 

560 

558

558 

562 

575 

591 

597

597 

606 

620 

623 

620

616 

616 

621 

559 

516

537 

493 

469 

475 

482 

581

Maximum

462 

256

45

902

24 

31 

74 

517 

623 

773 

700 

640 

1.6

773

June

773 

773 

773 

740 

683

691 

566 

504 

510 

516

484 

466 

469 

473 

478

417 

241 

134 

20 

20

54 

65 

64 

64 

64

63 

64

64 

64 

64

July

174 

282 

396 

460 

435

374 

323 

256 

236 

235

234 

260 

294 

294 

293

293 

294 

293 

296 

323

323 

568 

700 

403 

l.B

1.7 

313 

516 

512 

510 

508

Minimum

12 

.3 

9.2

.3

16 

21 

32 

56 

420 

20 

1.7 

1.6 

1.1

.5

Aug.

506 

506 

355 

265 

265

265 

307 

330 

326 

363

384 

384 

378 

414 

431

431 

428 

491 

522 

550

564 

562 

560 

556 

552

587 

640 

635 

630 

312 

1.6

Mean

295 

23.4 

18.6

226

19.8 

26.1 

49.4 

279 

551 

345 

336 

436 

1.50

200

Sept.

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1,6 

1.6 

1.6 

1.4

1.4 

1.4 

1.4 

1.4

1.4

al.4 

1.4 

1.3

1.1 

1.1

Runoff in 

acre-feet

18,150 

1,390 

1,140

164,400

1,220 

1,450 

3,030 

16,610 

33,860 

20,550 

20,630 

26,780 

89

144, 900

a Ho gage-height record; discharge Interpolated or computed on basis of record at outlet.
226 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Ward tunnel at outlet, Calif.

Location.- Water-stage recorder, lat. 37°16', long. 119*09', in SE£ sec. 5, T. 8 S., R. 

as E. , just upstream from tunnel outlet at east end of Huntington Lake, 6 miles northeast of Big Creek. Altitude of gage, about 7,000 feet (from topographic map).

Records available.- November 1927 to September 1949. 

Average discharge.- 21 years (1928-49), 434 second-feet.

Extremes.- Maximum daily discharge during year, 1,390 second-feet June 3; minimum daily, 

0.8 second-foot Sept. 18, 19, 26-S9.

19S7-49: Maximum daily- discharge, S.080 second-feet June 21, 1935; minimum daily, 

0.4 second-foot Dec. 7, 1945.

Remarks.- Records good. Tunnel diverts from Florence Lake to Huntington Lake, receives 

diversions from Bear and Mono Creeks and at times from several other small tributaries 

of South Fork San Joaquin River. See record for Ward tunnel at intake on preceding 

page.

Cooperation.- Water-stage recorder graph, furnished by Southern California Edison Co., 

obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

353 

351 

34S 

374 

396

390 

416 

481 

473 

465

459 

454 

447 

384 

318

311 

278 

251 

248 

243

239 

278 

311 

299 

285

271 

221 

173 

222 

126 

45

Nov.

29 

31 

31 

29 

240

237 

71 

22 

21 

20

23 

21 

23 

23 

22

23 

23 

19 

26 

19

17 

118 

84 

32 

28

29 

26 

27 

26

25

Dec.

26 

60 

58 

37 

34

36 

37 

39 

41 

42

42 

42 

42 

38 

38

42

44 

45 

47 

50

52 

50 

47 

45 

44

44 

46 

46 

50 

54 

58

Jan.

58 

56 

54 

54 

52

51 

52 

51 

50 

47

44 

42 

42 

43 

45

46 

45 

46

47 

48

50 

52 

54 

56 

58

59 

60 

60 

58 

55 

54

Feb.

52 

50 

50 

50 

51

52 

51 

54 

57 

60

63 

63 

66 

66 

67

68 

71 

72 

73 

74

70 

71 

70 

69 

67

71 

70 

69

Month

Ooto 

Move

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

74 

78 

78 

79 

74

81 

92 

95 

95 

93

92

94 

101 

108 

115

114 

112 

116 

128 

117

116 

114 

107 

105 

102

110 

136 

147 

123 

118 

114

Apr.

115 

123 

128 

146 

177

196 

172 

160 

202 

265

358 

426 

488 

578 

596

574 

629 

630 

668 

689

870 

1,060 

1,020 

1,020 

1,010

886 

905 

1,010 

988 

993

Secondfoot-days

9,910 

1,365 

1,376

143,096

1,589 

1,767 

3,228 

17,022 

35,383 

27,138 

16,327.8 

15,771 

59.9

130,936.7

May

983 

1,060 

1,140 

1,080 

1,090

1,070 

1,140 

1,180 

1,060 

1,020

1,020 

1,150 

1,170 

1,220 

1,150

1,190 

1,260 

1,260 

1,220 

1,110

1,070 

1,150 

1,270 

1,230 

1,190

1,220 

1,170 

1,130 

1,120 

1,110 

1,150

Maximum

481 

E40 

60

1,520

60 

74 

147 

1,060 

1,270 

1,390 

810 

707 

3.2

1,390

June

1,280 

1,350 

1,390 

1,330 

1,300

1,330 

1,230 

1,150 

1,150 

1,160

1,130 

1,090 

1,090 

1,090 

1,090

1,050 

895 

786 

602 

467

468 

504 

557 

549 

584

612

549 

491 

448 

416

July

480 

603 

745 

808 

755

654 

578 

510 

468 

465

470 

481 

521 

516 

510

502 

486 

472 

445 

452

436 

642 

810 

592 

85

3.8 

369 

607 

598

598 

666

Minimum

45 

17 

26

17

42 

50 

74 

115 

983 

416 

3.8 

33 

.8

.8

Aug.

663 

630 

500 

386 

372

358 

373 

396 

392 

41S

442 

438 

428 

452 

473

468 

464 

516 

559 

581

596 

618 

707 

663 

636

646

701 

692 

680 

490 

33

Mean

320 

45.5

44.4

391

51.3 1 

63.1 

104 

567 

1,141 

905 

527 

509 

2.00

359

Sept.

3.2 

3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

2.9

1.4 

.9 

.8 

.8 

.9

.9 

1.0 

.9 

.9 

.9

.8 

.8 

.8 

.8

.9

Runoff In 

acre-feet

19,660 

2,710 

2,730

283,800

3,150 

3,500 

6,400 

33,760 

70,180 

53,830 

32,390 

31,280 

119

259,700
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 227

Bear Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°20', long. 118°58', in SW£ sec. 12, T. 7 S R 

Z7 &. , 2 miles upstream from mouth and 4 miles by trail south of Vermilion Valley'.' Altitude of gage, about 7,400 feet (from topographic map).

Drainage area.- 53.5 square miles.

Records available.- November 1921 to September 1949.

Average discharge.- 25 years (1922-30, 1932-49), 86.2 second-feet.

Extremes.- Maximum discharge during year, 615 second-feet June 11 (gage height, 5.44 feet); 

minimum, 1.7 second-feet or less Nov. 29 (during period of ice effect).

1921-49: 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 

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.-

Revisions (water years).- W 611: 1922(M).

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.9

3.0

3.1

3.2

3.3 4.0

71

100

176

302

390

540

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.0 

4.0 

3.7 

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.3

3.5 

4.2 

5.0 

6.5 

6.2

5.3 

4.7 

4.5 

4.5 

4.2

4.0 

4.0 

4.0 

4.2 

4.2

4.0

4.0 

3.7 

3.5 

3.5 

4.5

Nov.

5.0 

5.9 

5.6 

4.5 

4.2

4.7 

4.2 

3.3

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.5

3.7 

4.0 

3.5

4.0 

3.3

3.5 

4.0 

4.2

b3

Dec.

b5

Jan.

(*) 

b8

Feb.

(*) 

 blO

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

MAv

June 

July 

Augu 

Sept

Ha

Lendar year 1946

ter year 1948-49 ...............

Mar.

 b!7

Apr.

 b25

52

68 

75 

90 

102 

92

91

102 

94 

88

107

159

191 

187 

192 

165

134 

156 

186 

169 

163

Secondfoot-days

128.2 

113.1 

155

23,952.4

248 

280 

527 

2,888 

7,135 

8,376 

2,061 

915 

251.1

23,077.4

May

197 

227 

212 

186 

183

178 

203 

203 

152 

144

152 

188 

200 

218 

165

206 

244 

218 

172 

142

134 

176 

260 

350 

400

420 

445 

420 

345 

230 

165

Maximum

6.5 

5.9

450

192 

445 

520 

129 

71 

18

520

June

150 

181 

200 

188 

242

381 

420 

460 

470

500

520 

470 

445 

435 

420

390 

345 

264 

183 

142

134 

148 

167 

169 

188

195 

169 

148 

132 

120

July

111 

118 

129 

125 

108

96 

85 

81 

78 

77

78 

77 

78 

77 

72

70 

64 

57 

51 

44

41 

37 

35 

33 

32

31 

29 

28 

26 

33 

60

Minimum

3.3

-

134 

120 

26 

12 

4.5

-

Aug.

57 

47 

52 

44

38

33 

30 

26 

24 

23

22 

21 

18 

17 

16

15 

15 

14 

13 

12

12 

43

71 

52 

43

35 

30 

27 

23 

22 

20

Mean

4.14 

3.77 

5

65.4

8 

10 

17 

96.3 

230 

279 

66.5 

29.5 

8.37

63.2

Sept.

18 

16 

15 

14 

12

11 

10 

9.7 

8.7 

7.9

7.5 

7.5 

8.3 

9.2 

7.9

7.5 

7.1

6.8 

6.5 

6.2

6.2 

6.2 

6.2 

5.9 

5.6

5.3 

5.0 

4.7 

4.7 

4,5

Runoff in 

acre-feet

254 

224

307

47,520

492 

555 

1,050 

5,730 

14,150 

16,610 

4,090 

1,810 

498

45,770

Peak discharge (base. 440 see.-ft.).- May 27 (9 p.m.) 540 sec.-ft.j June 11 (9 p.m.) 615 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-|discharge relation jaffected by ice.
228 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Mono Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 118°59', in SW£ sec. 35, T. 6 S., R. 27 

E~! ("unsurveyed), 1 mile downstream from lower end of Vermilion Valley and 6 miles downstream from North Pork.' Altitude of gage, about 7,400 feet (from topographic map).

Drainage area.- 92.0 square miles.

Records available.- November 1921 to September 1949.

Average discharge.- 25 years (1922-30, 1932-49), 146 second-feet.

Extremes.- Maximum discharge during year, 916 second-feet June 11 (gage height, 7.31 feet); 

minimum, 7.5 second-feet or less Nov. 29 (during period of ice effect).

1921-49: Maximum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.62 feet); 

minimum, 6.5 second-feet Dec. 22, 1939."

Remarks.- Records good except those for'period of ice effect, which are fair. No storage, 

or diversion above station.

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by 

southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years).- W 1011: 1943.

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

4.8 

5.0 

5.2 

5.4

5.6

10

28

56

92

137

5.8 

6.0 

6.3 

6.7 

7.1

195

266

395

595

800

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

16 

16 

16 

15 

15

15 

14 

14 

14 

14

14 

15 

16 

17 

17

16 

16 

16 

16 

16

15 

15 

15 

15 

14

14 

14 

14 

13 

16 

17

Nov.

17 

17 

18 

17 

16

16 

16 

15 

16 

18

18 

18 

18 

18 

16

16 

16 

16 

17 

18

25

20 

*18 

b!6 

b!8

b!5 

b!4 

b!4 

b!4 

b!4

Dec.

. b!3

Jan.

. b!4

Feb.

b!7

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

 b28

Apr.

 b40

61

84 

98 

113 

145 

161

161 

178 

176 

180 

195

248 

306 

319 

328

310

251 

255 

302 

298 

286

Secondfoot-days

470 

505 

403

41,068

434 

476 

868 

4,815 

12,049 

13,245 

3,662 

1,440 

602

38,969

May

323 

377 

349 

310 

302

298 

332 

336 

278 

251

259 

328 

354 

390 

306

354 

425 

400 

345 

290

274 

319 

410 

525 

585

625 

70O 

675 

555 

420 

354

Maximum

17 

25

S75

328 

700 

762 

205 

90 

31

762

June

319 

358 

367 

349 

390

540 

610 

685 

715 

762

762 

705 

660 

655 

620

585 

520 

425 

332 

266

 255 

266 

294 

278 

298

302 

266 

240 

219 

202

July

189 

202 

202 

205 

183

164 

150 

142 

135 

137

140 

135 

132 

130 

130

127 

115 

109 

96

86

79 

77 

71 

70 

65

63 

61 

59 

56 

59 

92

Minimum

13 

14

-

251 

202 

56 

26 

14

-

Aug.

90 

77 

77 

73 

70

61 

54 

50 

47 

47

44 

42 

37 

34 

33

32 

29 

28 

27 

26

26 

32 

75 

56 

53

42 

38 

38 

36 

34 

32

Mean

15.2 

16.8 

13

112

14 

17 

28 

160 

389 

442 

118 

46. g 

20.1

107

Sept.

31 

29 

27 

26 

26

24 

23 

22 

21 

21

22 

23 

24 

22 

20

18 

17 

T6 

16 

16

16 

17 

18 

16 

16

16 

15 

14 

15 

15

Runoff in 

acre -feet

932 

1,000 

799

81,460

861 

944 

1,720 

9,550 

23,900 

26,270 

7,260 

2,860 

1,190

77,290

Peak discharge (base, 540 sec.-ft.).- May 27 (11 p.m.) 850 sec.-ft.j June 11 (11 p.m.) 916 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SAil JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 229

Huntington Lake near Big Creek,' Calif.

Location.- Water-stage recorder, lat. 37°14', long, lia°13', in SW£ sec. 14, T. 3 S., R. 

25 E., in gate tower of dam 1 on Big Creek, 2 miles northeast of town of Big Creek. 

Datum of gage is at mean .sea level.

Drainage area.- 79.0 square miles.

Records available.- October 1926 to September 1949. 

in water-supply Paper 881.

1913 to 1926 summary records only,

Extremes.- Maximum contents during year, 88,800 acre-feet July 10, Aug. 29; maximum

elevation, 6,949.73 feet July 10; minimum, 9,090 acre-feet Apr. 10 (elevation, 6,864.65 

feet).

1913-49: Maximum contents, 90,000 acre-feet May 23, 1926 (elevation, 6,950.8 feet); 

minimum, 1,860 acre-feet Mar. 8, 1935 (elevation, 6,839.0 feet).

Remarks.- Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised in 

1914 and again in 1917. Usable capacity, 89,200 acre-feet between elevations 6,819.9 

feet (invert of outlet tunnel No. 1) and 6,950 feet (spillway crest at dam 1) above 

mean sea level. 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.

Cooperation.- Record of contents, furnished by Southern California Edison Co., obtained 

in connection wltfi a Federal Power Commission project.

Contents, in acre-feet, water year October 1948 to September 1949

Da»

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

87,100

87,100

87,300

87, gOO

87,100

87,000

86,900

86,900

87,000

87,400

87,500

87,600

87,900

88,200

88,200

88,400

88,400

88,400

88,400

88,100

87,900

87 , 800

87,700

87,900

88,000

88,100

88,100

87,800

87,800

87,700

87,300

Hoy.

86,800

86,300

85,500

84,800

84,500

84,500

84,300

83,600

82,900

82,300

81,700

81,000

80,500

80,200

79,700

79,000

78,300

77,700

76,900

76,300

76,100

75,800

75,300

74,700

74,500

74,000

73,500

73,000

72,500

71,700

-

Dec.

71,100

70,500

70,100

69,700

69,400

68,900

68,300

67,800

67,300

66,900

66,500

66,200

65,700

65,400

64,900

64,200

63,800

63,600

63,500

63,000

62,400

61,800

61,400

61,000

61,100

61,300

60,900

60,500

60,100

59,600

59,300

Jan.

59,400

59,500

58,900

58,200

57,600

56,900

56,400

56,000

55,800

55,100

54,400

53,700

53,000

52,300

51,700

51,400

50,800

50,100

49,600

49,000

48,400

48,100

47,900

47,300

46,600

46,000

45,400

44,900

44,500

44,300

43,900

Feb.

43,600

43,200

42,900

42,600

42,500

42,600

42,100

41,700

41,100

40,700

40,200

39,700

39,300

38,790

38,000

37,400

36,800

36,200

35,900

35,400

34,800

34,300

33,700

33,200

32,600

32,400

31,900

31,300

_

_

-

liar.

30,800

30,400

30,100

29,700

29,800

29,900

29,500

28,900

28,100

27,500

26,900

26,300

25,900

25,200

24,600

24,000

23,300

22,700

22,000

21,500

20,900

20 , 300

19,700

19,000

18,300

17,700

17,700

17,200

le.SOO'

15,600

14,600

Apr.

13,700

13,000

12,200

11,600

11,100

10,700

10,200

9,640

9,240

9,090

9,200

9,420

9,790

10,400

11,000

11,600

12,300

13,200

14,000

15,300

17,000

19,200

21,400

23,900

26,000

27,900

29,500

30,800

32,100

32,700

-

Bay

32,900

33,300

33,700

33,800

34,000

34,300

34,800

35,800

36,000

35,800

35,900

36,500

37,300

38,400

39,100

39 , 800

40,900

42,000

42,700

43,100

43,500

44,800

46,400

47,800

49,700

51,900

53,900

55,500

57,000

58,100

59,100

June

60,500

62,100

63,600

64,900

66,200

68,000

70,000

71,800

73,600

75,300

77,000

78,600

80,000

81,400

82,900

84,400

85,600

86 , 900

87,800 .

88,000

88,100

88,100

88,200

88,400

88,500

88*600

88,500

88,000

87,800

87,600

-

July

87,500

87,700

86,200

88,700

88,600

88,500

88,600

88,500

88,500

88 , 800

88,700

88,500

88,500

88,400

88,400

88,400

88,200

88,000

 87,800

87,600

87,300

87,500

87,900

88,000

87,000

85,900

85,700

86,000

86,500

86,800

87 , 300

Aug.

87,800

88,100

88,300

88,200

88,100

87,800

87,400

87,200

87,100

87,100

87,200

87,200

87,200

87,200

87,300

87,300

87,100

86,900

86,900

86,900

86,900

87,200

87,600

87,800

87,900

88,000

88,300

88,500

88,800

88,700

87,600

Sept.

86,400

85,300

84,200

83,200

82,000

80,900

79,900

78,900

77,900

77,200

76,500

75,600

74,700

73,800

72,800

71,900

71,200

70,500

69,600

68,600

67,600

66,700

65,700

65,000

64,300

63,400

62,500

61,500

60,800

59,800

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31...................

Calendar year 1948. .....

Sept. 30. ..................

Water year 1948-49. .....

Elevation 

(feet)t

6,927.34

-

6,927. 77

-

Contents 

(acre-feet)

71,700

59,300

-

14,600

87,300

59,800

-

Change in contents 

during month 

(acre-feet)

_

-12,400

+16,400

-12,600

-16,700

+26,400

-300

-27,800

-27 , 400

t Elevation at 12 p.m. 

,947809 0-51-16
230 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°12'50", in NWy 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). Prior to Oct. 1, 1942, at datum 1.00 foot lower and from 

Oct. 1, 1942, to Sept. 30, 1948, at datum 1.00 foot higher than present datum.

Drainage area.- 80.0 square miles.

Records available.- June 1925 to September 1949 (records prior to October 1929 only for 

periods of spill from Huntington Lake).

Extremes.- Maximum discharge during year, 4.7 second-feet Apr. 24 (gage height, 2.43 feet); 

minimum, 0.2 second-foot Sept. 28-30.

1925-49: Maximum discharge, 2,040 secondrfeet June 23, 1925 (gage height, 10.3 feet, 

datum then in use), siphon spillways operating at Huntington Lake; minimum, 0.1 secondfoot 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 most 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 Commission project.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.2 

1.4 

1.6

0.2

.7

1.3

1.8 

2.0 

2.2

2.0 

2.8 

3.6

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3

.3 

.3 

.3 

.3

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.4 

.4 

.4

Nov.

0.4

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.3

.3 

.3 

.3

.3 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3

.3 

.3

Dec.

0.

Jan.

0.

 .

Feb.

o.<

Month

Oo to 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 194S

ter year 1948-49 .......................

Mar.

0.4 

.4

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.4

.4 

.4

.4 

.4

.4 

.4 

.5 

.5 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6 

.6

Apr.

0.7 

.7 

.9 

1.2 

1.3

1.2 

1.0 

1.0 

1.4 

1.8

1.9 

2.2 

2.3 

2.4

2.1

2.4 

2.1 

2.1 

2.2 

2,6

3.0 

3.2 

3.1 

3.3 

2.9

2.6 

2.8 

2.8 

2.7 

2.6

Secondfoot-days

10.6

9,8 

11^8

282.5

12.4 

11.2 

15.0 

62.5 

72.7 

31.1 

15.6 11.5' 

8.8

273.0

May

2.8 

2.8 

2.7 

2.6 

2.6

2.5

2.4 

2.4 

2.4 

2.3

2.4 

2.4 

2.6 

2.7 

£.4

2.3 

2.5 

2.8 

2.8 

2.5

2.3 

2.2 

2.1 

2.1

2.0

1.9 

1.9 

1.8 

1.9 

1.9 

1.7

Maximum

0.4 

.4 

.4

4.1

.4 

.4 

,6 

' 3. J 

2.8 

1.6 

.7 

.4 

.4

3.3

June

1.6 

1.6 

1.5 

1.4 

1.3

1.3 

1.2 

1.2 

1.1 

1.1

1.1 

1.0 

1.0 

.9 

.9

.9 

.9 

.9 

.9 

.8

.8 

.8 

.9 

1,0 

1.0

.9 

.8 

.8 

.8 

.7

Minimum

July

0.7 

.7 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

0.3 

.3 

.3

.2

.4 

.4 

,4 

.7 

1.7 

.7 

.4 

.3 

.2

.2

Aug.

0.

.3 

.3 

.3

Mean

0.34 

.33 

.38

.77

.40 

.40 

.48 

2.08 

2.35 

1.04 

.50 

.37 

.29

.75

Sept.

0.3 

.3 

.3 

.3- 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.4 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

Runoff In 

acre -feet

21 

19 

23

559

25

22 

30 

124 

144 

62 

31 

23 

17

541
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 231

Pitman Creek below Tamarack Creek, Calif.

Location.- Water-stage recorder, Jat. 37°12', 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 1949. 

Average discharge.- 21 years, 37.9 second-feet, 

extremes.- Maximum discharge during year, 440 second-feet May 13 (gage height, 6.05 feet);

minimum, less than 0.1 second-foot Nov. 25.

1927-49: Maximum discharge, 2,320 second-feet Dec. 11, 1937 (gage height, 9.65

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area

studies; no flow part of Nov. 24, 1930, Oct. 15-18, 1931. 

Remarks.- Records good except those for period of ice effect or no gage-height record,

whijch are fair. No diversion above station; practically all flow diverted below station

to Huntington-Shaver conduit. 

Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission

project. 

Revisions (water years).- W 931: 1940.

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, ana discharge, in second-feet)

1.8 0 2.5 18 4.0 108 

1.9 .8 2.8 30 4.4 146 

2.0 2.7 3.1 44 4.8 192 

2.1 5.1 3.4 61 5.2 256 

2.3 11 3.7 83 5.4 294

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.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.5 

.6 

.6 

.5

.4 

.2 

.2 

.2 

.2

.2 

.2

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.4

Nov.

0.4 

.5 

.5 

.5 

.4

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.4 

.2

.2 

.4 

.4 

.4

.2

.2 

.2 

.2 

.2 

.2

*.2 

.2 

.2 

.2 

.2

Dec.

, 0.2

Jan.

0.2 

' 0.2

Feb.

0.2

Month

Goto 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Ha

ber. ....................................

lendar year 1943 

ai*y

ter year 1948-49 ...............

Mar.

0.3 

' 0.3

Apr.

1

1 

1 

1 

2

2 

2 

2 

3 

5

7 

10 

13 

17 

39

41 

53 

57 

63 

63

100 

130 

144 

159

143

112 

119 

149 

149 

138

May

158 

187 

158 

151 

175

187 

192 

188 

159 

146

193 

219 

275 

263 

183

183 

212 

209 

159 

145

167 

208 

249 

267 

278

276 

249 

209 

186 

157 

143

foSo?-SayS ""I 

8.0 0.6 

8.1 .5 

6.2

9,892.6 302

6.2 

5.6 

9.3 

1,726 159 

6,131 278 

1,965 150 

151.8 13 

23.8 1.5 

7.0 .4

10,048.0 278

June

143 

150 

139 

124 

122

134 

124 

113 

106 

98

85 

73 

63 

56 

50

44 

39 

38 

36

31

28 

25 

23 

21 

20

18 

17 

16 

15 

14

July

13 

12 

11 

10 

. 9.5

8.9 

8.0 

7.1 

6.8 

5.7

5.4

5.1 

4.6 

4.3 

4.1

3.6 

3.4 

3.1 

2.9 

2.7

2.2 

2.2 

2.0 

2.0 

2.0

2.0 

1.8 

1.8 

1.6 

1.5 

1.5

Aug.

1.3 

1.5

1.1 

1.1 

.9

.9 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.6 

.6

.6 

.5 

.5 

.5 

.4

.4 

1.1 

1.5

1.1 

.8

.6 

.5 

.5 

.5 

.5 

.4

Sept.

0.4 

.4 

.4 

.4 

.4

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

. 2 

.2 

.2 

.2 

.2

.2

.2 

.2 

.2 

.2

Minimum Mean *£°«ee?

0.2 0.26 16 

.2 .27 16 

.2 12

27.0 19,620

.2 12 

.2 11 

.3 18 

1 57.5 -3,420 

143 198 12,160 

14 65,.5 3,90Q 

1.6 4.90 301 

.4 .77 47 

.2 .23 14

27.5 19,930

Peak discharge (base. 200 sec.-ft.).- May 6 (7:30 p.m.) 256 sec.-ft,; May 13 (11:30 p.m.) 440 sec.- 

ft.; May 25 (6:30 p.m.) 376 see.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharge relation affected by ice Nov. 25 to Apr. 23 (no gage-height record Jan. 11 

to Mar. 18} discharge computed on basis of records for Huntington-Shaver conduit and unpublished records for Pitman Creek near Tamarack Mountain).
232 SAN JOAQUIN EIVER TRIBUTARIES ABOVE PRESNO RIVER

Shaver Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°09', long. 119°18', in SE^ sec. 13, T. 9 S,, R. 

24 E., at dam on Stevenson Creek and 6 miles southwest of town of Big Creek. Datum 

of gage is at mean sea level.

Drainage area.- 29.7 square miles.

Records available.- January 1927 to September 1949.

Extremes.- Maximum contents during year, 109,200 acre-feet June 6 (elevation, 5,357.52 

reet);' minimum, 16',100 acre-feet Apr. 10 (elevation, 5,290.70 feet).

1927-49: Maximum contents, 135,700 acre-feet July 4, 5, 1946; maximum elevation, 

5,370.2 feet July 13-18, 1945, July 4, 5, 1946; minimum, 652 acre-feet Mar". 7, 1942 

(elevation, 5,249.4 feet).

Remarks.- Lake is formed by concrete-arch dam; completed and storage began in 1927. Usaoj.e 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.- Records of contents, furnished by Southern California Edison Co., obtained 

in connection with a Federal Power Commission project.

Contents, In thousands of acre-feet, water year October 1948 to September 1949

Das

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct.

83.6

82.9

82.8

32.0

81.1

80.2

79.4

78.7

78.1

78.0

77.5

76.7

76.1

75.2

74.5

74.0

73.7

73.0

72.3

72.1

71.8

71.6

71.3

71.1

70.1

69.0

67.9

66.9

65.8

64.8

64.3

Nov.

63.5

62.8

62.1

61.4

60.7

60.2

60.0

59.3

58.7

58.0

57.3

56.6

56.0

55.9

55.2

54.5

53.8

53.2

52.4

51.9

51.8

51.2

50.6

50.1

50.0

49.5

49.1

48.8

48.2

47.6

-

Dec.

47.1

46.5

46.1

45.6

45.4

45.0

44.5

44.1

43.8

43; 4

43.1

43.1

42.8

42.6

42.3

41.9

41.8

41.7

41.6

41.4

41.2

41.0

40.8

40.6

40.6

40.8

40.6

40.3

40,1

39.8

39.6

Jan.

39.6

39.6

39.4

39.0

38.8

38.7

38.7

38.7

38.7

38.5

38.2

37.9

37.5

37.2

37.1

37.1

37.0

36.8

36.7

36.6

36.6

36.7

36.8

36.6

36.5

36.4

36.3

36.2

36.2

36.3

36.2

Feb.

36.2

36.2

36.2

36.2

36.2

36.3

36.1

35.9

35.8

35.7

35.5

35.4

35.4

35.1

34.8

34.7

34.5

34.3

34.3

34.3

34.2

34.2

34.1

34.1

34.0

34.1

34.1

34.1

_

-

-

Mar.

34.1

34.3

34.5

34.6

34.7

34.7

34.8

34.8

34.8

34.8

34.0

33.2

32.5

31.6

30.5

29.7

28.8

28.2

28.3

28.4

27.8

27.2

26.7

26.0

25.4

25.4

25.5

24.7

23.7

23.1

22.6

Apr.

21.9

21.0

20.7

19.9

19.1

18.3

17.6

17.1

16.4

16.1

16.4

16.7

17.0

17.2

17.6

18.1

18.6

19.0

19.4

20.0

20.6

21.4

22.2

23.0

23.6

24.1

24.9

26.4

28.0

30.3

-

May

33.2

36.1

39.0

41.8

44.8

47.7

50.6

53.5

56.4

59.3

52.2

65.1

68.1

70.9

7-3.8

76.7

79.8

82.0

84.0

85.5

88.0

90.6

93.0

95.1

96.6

97.7 '

99.1

100.6

102.1

103.6

104.5

June

105.5

106.2

106.9

107.7

108.6

109.2

109.0

108.6

108.4

108.2

108.1

108.1

108.1

108.3

108.4

108.5

108.6

108.7

108.8

107.8

106.8

105.9

105.0

103.9

103.7

103.8

103.2

102.7

101.9

101.3

July

101.0

100.7

100.2

99.7

99.7

99' 9-

99.8

99.6

99.5

99.2

99.0

98.8

98.6

9S.4

98.2

98.1

98.1

97.8

97.6

97.2

96.8

96.2

95.7

95.4

94.6

94.0

33.1

92.2

91.2

90.4

90.2

Aug.

89.5

88.7

88.0

87.2

86.4

85.8

85.7

85.0

84.3

83.6

82.7

82.0

81.4

81.3

80.6

79.8

79.0

78.4

77.9

77.4

77.3

76.8

76.0

75.4

74.8

74.2

73.6

73.4

72.8

72.1

71.5

Sept.

70.9

70.4

70.0

69.8

69.7

69.4

69.1

68.8

68.5

68.5

68.5

68.2

68.1

67.8

67.5

67.2

67.2

67.2

66.9

66.6

66.2

65.9

65.6

65-5

65.5

65.3

65.1

64.8

64.5

64.2

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31... ...............

Calendar year 1948....

Sept. 30. ..................

Water year 1948-49....

Elevation 

(feet)t

5 332 24

5,314.32

-

5,332.14

-

Contents 

(acre-feet)

39,600

-

64,200

-

Change in contents 

during month 

(acre-feet)

-8,000

+12,500

-7,300

-20,200

t Elevation at 12 p.m.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 233

Huntington-Shaver conduit at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 370 10', long. 119°14', in SW£ 

sec. 10i 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 1949. 

Average, discharge.- 20 years (1929-49), 196 second-feet.

Extremes.- Maximum daily discharge during year, 1,480 second-feet May 13, 14; minimum daily, 

 1"9 second-feet Oct. 26-29, Nov. 27 teo Dec-. "3.

1928-49: Maximum daily discharge, 1,780 second-feet June 3, 4, 1938; minimum daily, 

1.2 second-feet Dec. 28, 1944, to Jan. 2, 1945.

Remarks.- Records good, Conduit diverts from Huntington Lake to Shaver Lake, with additions from Pitman Creek and seepage en route.

Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by

aoutnern 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

25 

24 

25

26 

27 

28 

29 

50 

31

Oct.

2.2 

2.2 

2.2 

2.2 

2.2

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.2 

2.4 

2.4 

2.4

2.4 

2.2 

2.2 

2.2 

2.2

2.2 

2.1 

2.1 

2.1 

2.1

1.9 

1.9 

1.9 

1.9 

2.1 

2.1

Nov.

2.2 

2.4 

2.4 

2.4 

2.4

2.2 

2.2 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.1 

1.9 

1.9 

1.9. 

1.9

Dec.

1.9 

1.9 

1.9

2.1 

2.1

2.1 

2.1 

2.1 

2.2 

2,2

2.2 

2.2 

2.2 

2.2

, d2.2

Jan.

(32.2

2.2 

2.2 

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

2.6 

2.6 

2.6 

2.6 

2.6 

2.6

Feb.

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2,6 

2.6 

2.6 

2.6

2.4 

2.4 

2.4 

2.4 

2.4

2.4 

2.4 

2.4 

2.4 

2.6

2.6 

2.6 

2.6 

2.6 

2.6

2.'6 

2.6 

2.6

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-4.9 .......................

Mar.

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.6 

2.6

2.6 

2.6 

2.6 

2.6 

2.7

2.7 

2.7 

2,7 

2.9 

2.7

2.9 

2.9 

2.9 

2.9

3.1

5.5 

5.6 

5.8 

4.0 

3.8 

3.8

Apr.

3.8 

4.0 

4.0 

4.8 

5.3

5.5 

5.5 

5.9 

6.6 

8.6

11 

15 

16 

20 

42

44 

56 

60 

66 

66

103 

155 

147 

169 

148

114 

225 

611 

647 

1,090

Secondfoot-days

66.6 

63.7 

66.8

62,475.9

75.6 

71.0 

89.8 

3,834.6 

38,157 

5,804 

643.9 

102.0 

93.0

49,068.0

May

1,350 

1,380 

1,560 

1,550 

1,580

1,590 

1,400 

1,410 

1,590 

1,570

1,410 

1,440 

1,480 

1,480 

1,440

1,440 

1,560 

1,220 

1,200 

1,200

1,230 

1,190 

1,160 

1,200 

981

874 

868 

844 

824 

804 

732

Maximum

2.4 

2.4

1,540

2.6 

2.6 

4.0 

1,090 

1,480 

665 

277 

3.6 

3.1

1,480

June

649 

663 

661 

654 

659

500 

148 

136 

130 

123

111 

98 

88 

81 

75

70 

64 

63 

62 

57

53 

51 

49 

47 

45

44 

144 

250 

15 

14

July

15 

12 

12 

11 

277

185 

9.6 

8.9 

8.2 

7.9

7.2 

6.9 

6.6 

6.3 

5.6

5.3 

5.5 

4.8 

4.5 

4.3

4.3 

4.0 

4.0 

4.0 

4.0

3.8 

5.8 

5.8 

3.6 

3.6 

5.6

Minimum

1.9 

1.9 

1.9

1.9

2.4 

2.6 

3.8 

732 

14 

3.6 

3.1 

5.1

1.9

Aug.

3.6 

3.6 

3.3 3.5- 

3.3

3.3 

3.3 

3.3 

5.5 

5.3

313 

3.5 

3.3 

3.5 

5.3

3.5 

3.3 

3.5 

5.3 

3.3

3.3 

3.5 

3.6 

3.3 

3.3

3.1 

3.1 

5.1 

3.1 

5.1 

5.1

Mean

2.15 

2.12 

2.15

171

2.44 

2.54 

2.90 

128 

1,251 

195 

20.8 

3.29 

3.10

134

Sept.

3.1 

3.1 

3.1 

3.1 

3.1

5.1 

3.1 

3.1 

3.1 

3.1

3.1 

3-1 

3.1 

3.1 

3.1

3.1 

3.1 

3.1 

3.1 

3,1

.3.1 

3.1 

3,1 

3.1 

5.1

3.1 

3.1 

3.1 

3.1 

3.1

Runoff In 

acre-feet

132 

126 

132

123,900

150 

141 

178 

7,610 

75,680 

11,510 

1,280 

202 

184

97,320

d Doubtful gage-height record; discharge Interpolated.
234 SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER

North Fork Willow Creek below Crane Valley Reservoir, Calif,

Location.- Water-stage recorder, lat. 37°17', long. ,119 0 32', In SE£ sec. 26, T. 7 S./R. 

zz E., 1,500 feet downstream from Crane Valley Reservoir spillway. Altitude of gage, 

about 3,200 feet (from topographic map).

Drainage area.- 50.8 square miles.

Records available.- May 1940 to September 1949.

Extremes.- Maximum discharge during year, 166 second-feet Nov. 19, 22, 30 (gage height, 

372~2~Teet); minimum, 0.4 second-foot Apr. 21-24.

1940-49: 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

61la 1.1

98 

101

101 

100 

100- 

101 

1.2

101 

102 

101 

99 

99

99 

1.0 

97 

100 

100

100 

100 

105 

1.1 

107

99 

91 

81 

81 

80 

1.3

Nov.

79 

81 

$1 

81 

81

1.2 

1..2 

82 

81 

81

81 

81 

 9 

.9 

83

89 

90 

83 

84 

1.1

1.1 

60 

.9 

.9 

.9

.9 

.9

1.0 

73 

74

Dec.

0.9 

.9 

1.1 

1.2 

1.4

30 

.8 

.8 

.8 

.7

.7 

.7 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.7 

.7 

.7

.9 

.9 

.8 

.8 

.8 

.8

Jan.

0.8 

.8 

.7 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.8

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5 

.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Feb.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.6 

.5 

.5 

.5 

.5

.5 

.6 

.6 

.7 

.6

.7 

.7 

.8 

1.0 

.9

1.1 

.9 

.8

lendar year 1948

ter year 1948-49 .......................

Mar.

0.8 

2.0 

3.3 

3.6 

1.4

1.1 

1.0 

.9 

.8 

1.6

1.6 

1.0 

.9 

.8 

.8

.8 

.7 

.7 

.9 

.8

.7 

.8 

1.1 

.9 

.8

.8 

.7 

.6 

.6 

.6 

.6

Apr.

0.6 

.6 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.5

.5 

.5 

.5 

.5 

.5

Secondfoot-days

2,410.8 

1,456.9 

55.1

4,113.7

18.5 

17.5 

33.7 

14.9 

34.6 

32.1 

29.2 

21.7 

15.0

4,130.0

May

0.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.7 

.7

.7 

.7 

.8 

.8 

.8

.8 

1.0 

.9 

1.0 

.9

.9 

.9 

.8 

.8 

.8

1.1 

1.2 

.8 

.9 

.9 

.9

Maximum

107 

90 

30

107

.8 

1.1 

3.6 

.6 

1.2 

1.2 

1.0 

.8 

.5

107

June

0.9 

.9 

.9 

1.0 

1.0

1.0 

1.0 

1.1 

1.1 

1.1

1.1 

1.1 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.1 

1.1

1.1 

1.0 

1.1 

1.1 

1.1

1.1 

1.0 

1.0 

1.0 

1.0

Minimum

July

1.0 

.9 

.7

.2

.5 

.5 

.6 

.4 

.6 

.9 

.8 

.5 

.5

.4

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

.9 

.9 

.8 

.8 

.8 

.8

Aug.

0.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.7 

.7

.6 

.6 

.6

.7 

.6 

.6 

,6 

.6

.6 

.6 

.6 

.6 

.5 

.5

Mean

77-8 

48.6 

1.78

11.2

.60 

.62 

1.09 

.50 

.79 

1.07 

.94 

.70 

.50

11.3

Sept.

0.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

..5

.5 

.5

Runoff in 

acre-feet

4,780 

2,890 

109

8,160

37 

35 

67 

30 

49 

64 

58 

43 

30

8,190
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 235

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

Location.- Water-stage recorder, lat. 37°17', long. 119°32', in SE£ sec. 26, T. 7 S., R. 

22 'E. , 1,000 feet downstream from Crane Valley Dam and powerhouse. Altitude of gage, 

about 3,300 feet (from topographic map).

Records available.- October 1940 to September 1949.

Extremes.- Maximum daily discharge during year, 153 second-feet Feb. 24; no flow Nov. 28,

'1940-49: Maximum daily discharge, 164 second-feet Sept. 21, 1944; no flow at times 

during each year except 1945, 1946, 1948.

Remarks.- Records good. Conduit diverts from Crane Valley Reservoir in sec. 26, T. 7 S., 

K. 22 E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 and 

eventually returns to North Fork Willow Creek.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1

2

3 

4 

5

6 

1 

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.

40 

101 

.6 

3.8 

.6

.6 

.6 

.6 

.6 

.3

.2 

.3 

.4

.3 

.3

.3

.3 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nov.

0.2 

.2

.1 

.1 

.1

.1 

.1

.1 

.1

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.2 

.1 

0 

0

.1

Dec.

0.2 

.2 

.1 

0 

0

15 

61 

41 , 

.2 

3.7

.2 

.2 

IS 

.5 

.4

70 

35 

.3 

.3 

7.3

.4 

.4 

6.2 

.5 

.6

11 

3.7 

.5 

.5 

6.1 

.3

Jan.

1.5 

3.3 

37 

32 

33

29 

27 

.5 

4.8 

81

a81 

a30 

a 25 

a. 5 

a. 5

a. 5 

a. 5 

46 

72 

91

67 

39 

63 

93 

10]

101 

102 

95 

15 

1.8 

94

Feb.

100 

105 

43 

115 

36

3.3 

90 

96 

67 

96

60 

4.0 

4.0 

395 

a85

a45 

92 

96 

103 

1.9

103 

97 

128 

153 

134

151 

125 

147

Month

Ooto 

Move 

Dece

Ca

Janu, 

Febrt 

Marc 

Aprl

Mni/

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 1948 

Sify »

ter year 1948-49 .......................

Har.

151 

86 

98 

18 

120

139 

139 

135 

147 

122

99 

126 

144 

143

127

144 

144 

144 

114 

144

146 

US 

143 

131 

134

136 

133 

134 

135 

143 

139

Apr,

135 

127 

132 

146 

133

131 

143 

132 

133 

108

114 

145 

145

145 

145

145 

97 

127 

101 

63

68 

55 

1.6 

1.6 

60

47 

63 

49 

54 

1,6

Seeondfoot-daya

154.0 

3.1 

280.7

10,716.4

1,36-7.3 

2,375.2 

3,973 

2,947.8 

250.6 

726.9 

3 > 087. 6 

4,567 

2,968.3

22, 702.1

May

1.6 

48 

63 

21 

22

1.0 

1.1 

5.8

1.1 

28

.8 

.8 

7.2 

.3 

5.1

.8 

.8 

6.8 

tl 

6.7

.7 

.6 

7.8 

.6 

.6

.3 

8.6 

.4 

.4 

7.1 

.4

Maximum

101 

.2

70

145

102 

153 

1S1 

146 

63 

66 

147 

148 

147

153

June

0.4 

.5 

9.3 

.4 

.4

5.9 

.5

.5

1.2 

66

.4 

.4 

30 

37 

41

43

33 

43 

33 

45

37 

43 

33 

36 

34

31 

33 

32 

31 

26

July

25 

19 

.5 

6.8

19

.7 

6.8 

15 

.8 

12

57 

141 

141 

147 

147

147 

147 

147 

147 

147

147 

147 

14? 

146

145

147 

147 

147 

147 

147 

147

JtUllBun

0.2 

0 

0

0

.S 

1.9 

18 

1.6 

.3 

.4 

.5 

142 

.5

0

Aug.

147 

147 

147 

147 

147

147 

147 

147 

147 

147

147 

147 

147 

148 

148

148 

148 

143 

148 

148

146 

148 

148 

US 

148

148 

148 

148 

147 

147 

142

Mean

4.97 

.10 

9.05

29.3

44.1 

84.8 

128 

98.3 

8.08 

24.2 

99.6 

147 

98.9

62.2

Sept.

123 

147 

147 

147 

147

147 

147 

147 

146 

145

145 

144 

144 

146 

147

147 

145 

143 

145 

143

55 

.S 

6.2 

3.4 

.6

.6

.6 

9.2 

.6 

.6

Runoff In 

acre-feet

305 

6.1 

557

21,250

2,710 

4,710 

7,880 

5,850 

497 

1,440 

6,120 

9,060 

5,890

45,030

a No gage-height record; discharge computed on basis of unpublished records of flow through Crane 

Valley and Crane Valley HO. 3 powerhouses.
236 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Big Sandy Creek near Auberry, Calif.

Location.- Water-stage recorder, lat. 37°03'10", long. 119°32'30", in NE^NWi sec. 23, T. 

10 B., R. 22 E., 1.8 miles upstream from mouth, 3 miles west of Prather and 4 miles 

southwest of Auberry. Altitude of gage, about 1,240 feet (from topographic map).

Drainage area.- 27.8 square miles.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 446 second-feet Mar. 4 (gage height, 2.67 feet); 

no now during several months.

1946-49: Maximum discharge, 1,120 second-feet Apr. 10, 1948 (gage height, 3.49 

feet); no flow during several mopths each year.

Remarks.- Records fair. No storage or diversion above station.

Rating tables, water year 1948-49 (gage height, in feet, 

-and discharge, in second-feet)

(Shifting-control method used Mar. 4-10: 

backwater corrections applied May 27-31;

0.9

1.0

1.1

Oct. 1 to Mar. 3

1.2 0.8

1.3 1.4

1.4 2.4

ar. 4 to Sept. 30

1.5

1.6

1.7

5.4

13

26

1.0

1.1

1.2

1.3

1.4

.5 

1.0 

2.2

1.5

1.6

1.7

1.8

1.9

5.0

12

2.0

2.1 

2.3

125

220

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z

3 

4 

5

6 

7 

8 

9 

10

11 

IS 

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

.1

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2

.3 

.3

Dec.

0.3 

.3 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4

.4

.4 

.4 

.4 

.4 

.4

.6 

.2 

.1 

.1 

0 

0

Jan.

0 

.1 

0 

0

.1

.1 .1 

.1 .1 .1

.1 .1 

.1 .1 .1

.1 

.1 .1

.3 

2.1

1.4 

2.4 

3.5

2.0 

1.0

.7 

.6 

.5 

.5 

.5 

.5

Feb.

0.4 

.4

.8 

.9 

1.2

1.4 

11 

5.4 

2.9 

2.7

11 

8.4 

4.2 

2.7 

2.5

2.2 

2.5 

2.9 

3.2 

3.2

2.7 

2.5 

2.5 

2.9 

3.5

2.9 

5.9 

3.8

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr!

Wfi*r

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2.9 

5.4

15 

189 

30

18 

16 

16 

22 

16

48 

18 

13 

12 

9.2

9.2 

7.8 

6.5

17 

34

13 

20 

68 

30 

23

17 

14 

13 

9.9 

9.2 

9.2

Apr.

7.8 

7.8 

7.1 

6.5 

5.5

5.0 

5.5 

5.0 

4.5 

4.0

4.0

3.6 

3.3 

3.0 

2.3

2.8 

2.8 

2.6 

2.6 

2.4

2.3 

2.2

1.8 

1.7 

1.7

1.6 

1.5 

1.4 

1.4

1.3

Secondfoot-days

0 

2.3 

10.0

968.1

17.5 

96.6 

731.3 

105.5 

32.3 

0 

0 

0 

0

995.5

May

1.0 

.8 

.8 

.7 

.6

.4 

.3 

.3 

.4 

.5

.4 

.3 

.2 

1.0 

1.2

1.3 

1.7 

8.9 

3.3 

3.6

1.8 

1.1 

.6 

.3 

.2

.1

.1 

.1 

.1 

.1 

.1

Maximum

0 

.3 

.6

332

3.5 

11 

189 

7.8 

8.9 

0 

0 

0 

0

189

June

Minimum

July

-

0 

0 

0

0

0 

.4 

2.9 

1.3

.1 

0 

0 

0 

0

0

Aug.

Mean

0 

.08. 

.32

2.65

.56 

3.45 

23.6 

3.52 

1.04 

0 

0 

0 

0

2.. 73

Sept.

Runoff In 

acre-feet

0 

4.6 

20

1,920

35 

192 

1,450 

209 

64 

0 

0 

0 

0

1,970

Peak discharge (base. SOO see.-ft.).- Mo peak above base.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 237

Pine Gold Creek near Friant, Calif.

Location.- Water-stage recorder, lat. 37°04 I 00", long. 119°38'50", in NW^NE^ sec. 14, T.

 10 S.', 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 1949.

Average d1s charge.- 13 years, 42.8 second-feet.

Extremes.- Maximum discharge during year, 1,010 second-feet Mar. 4 (gage height, 6.58

 Feet); no flow Oct. 1 to Dec. 16, June 12 to Sept. 30.

1936-49: 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 1948-49 (gage height, in feet,

and discharge, In second-feet) 

(Backwater corrections used May 18 to June 11)

1.5

1.6

1.7

1.8

1.9

l.T 

3.2 

5.6

Dec. 17 to Mar. 10

2.0 II

2.1 2:

2.3 3!

2.5 4:

2.7 6(

Mar. 11 to June 11

2.9 

3.3 

3.7 

4.5 

4.9

147

218

402

505

1.25

1.3

1.4

1.5

1.6

1.7

1.8 

3.4

5,8 2.3

2.5 58

2.7 77

3.0 109

3.3 147

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14

15

IB 

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

aO 

ao 

aO 

ao 

aO

aO 

a3.S 

a 4 

a3 

a2.5

a2 

a2 

a2 

az 

al.S

a3. 5 

a!3 

7.0 

4.3 

3.B 

2.9

Jan.

2.7 

2.9 

3.1 

2.7 

2.4

2.4 

2.2 

2.2

2.1 

2.1

1.9 

1.9 

2.1 

2.1 

1.9

1.9 

1.9

2.1 

3.7 

17

10 

8.6 

11 

7.3 

5.3

4.5 

4.1 

3.9 

3.6 

3.6 

3.4

Feb.

3.4 

3.4 

4.8 

5.3 

5.9

8.2 

24 

21 

11 

- 8.6

14 

21 

12 

9.3 

7.9

7.6 

7.fi 

10 

13 

13

11 

10 

11 

11 

16

14 

18 

14

Month

Octo 

Nove 

Beee

Ca

janu 

Fefcr 

Marc arJune 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...................................

lendar year 1948

ter year 1948-49 .......................

Peak discharge (basej 500 see. -ft.).- Mar.

a Ho gage-height record) discharge compute 

Frssno River.

Mar.

11 

19 

78 

495 

108

56 

41 

40 

29 

37

114 

63 

45 

35 

30

27 

24 

21 

27 

55

28 

33 

75 

63 

45

36 

33 

30 

27 

22 

22

Apr.

20 

18 

18 

16

IS

14 

14 

14 

12 

12

11 

10 

9.7 

9.3 

8.9

8.9 

8.5 

8.5 

8.5 

7.7

7.3 

7.0 

6.7 

6.1 

5.8

5.8 

5.5 

5.2 

5.0

4.7

Seoondfoot-days

0 

0 

56.4

1,985.3

126.6 

316.0 

1,769 

303.1 

247.8 

9.1 

0 

0 

0

2,828.0

May

4-7 

4.5 

4.5 

4.3 

4.0

3.6 

3.2 

3.0 

3.0 

3.2

3.0 

2.8 

2.7 

3.4

3.8

4.3 

89 

48 

12 

9.7

6.4 

4.5

3.6 

3,0 

2.5

2.2 

1.8

1.7 

1.8 

1.8 

1.8

Maximum

0 

0 

13

385

17 

24 

495 

20 

89 

1.6 

0 

0 

0

495

June

1.6 

1.4 

1.3 

1.1 

1.0

.8 

.7 

.5 

.4 

.2

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

1.9 

3.4 

11 

4.7 

1.7 

0 

0 

0 

0

0

Aug. Sept.

MPfln Runoff in Mean acre-feet

0 0 

0 0 

1.82 112

5.42 3,940

4.08 251 

11.3 627 

57.1 3,510 

10.1 601 

7.99 492 

.30 18 

0 0 

0 0 

0 0

7.75 5,610

4 (8:30 a.m.) 1,010 sec. -ft. 

a on basis of recorded range in stage and records for
238 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Madera Canal near Friant, Calif.

Location.- Water-stage recorder, lat. 36°59 I 45", long. 119°47'55", in NW£ sec. 9,'T. 11 

 S., K. 20 E., 8.8 miles downstream from intake at Friant. Altitude of. gage, about 415 

feet. Prior to Oct. 1, 1948, at site 2.3 miles upstream.

Records available.- October 1943 to September 1949.

Extremes.- Maximum daily discharge during year, 768 second-feet July 26; no flow for 

several months.

1943-49: Maximum daily discharge, that of July 26, 1949; no flow during several 

months of each year.

Remarks.- Canal diverts from right bank of San Joaquin River at Friant Dam. It is a part 

or central-Valley project and supplies water for irrigation between San Joaquin and 

Fresno Rivers. No diversion above station.

Cooperation.- Records of daily discharge furnished by Bureau of Reclamation.

Revisions.- Diversion totals for 1944-48 given herein supersede those published in WaterSupply Papers 1061, 1091, and 1181 under "Remarks" for San Joaquin River below Friant..

Discharge, In second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

61

10

0

0

0

0

0

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. Jan. Feb. Mar.

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

37

89

100

41

40

40

41

49

63

113

Apr.

121

159

160

160

162

163

162

162

162

162

162

161

145

133

133

134

134

134

135

134

135

151

167

169

176

204

218

222

220

223

-

May

223

225

226

229

230

229

229

229

229

228

230

231

222

222

224

226

230

212

190

181

171

172

175

166

157

160

161

163

166

167

188

June

218

218

226

256

257

257

259

260

264

287

301

303

316

376

374

373

391

487

508

539

579

602

598

610

624

621

620

620

619

621

-

July

602

571

571

569

568

598

620

619

616

612

634

667

676

690

699

708

705

704

697

692

691

709

729

722

730

768

760

753

745 736'

727

Aug.

720

716

711

704

697

688

677

667

660

651

677

690

681

671

655

675

688

676

667

658

647

636

623

612

603

613

620

608

589

575

560

Sept.

584

601

592

580

566

563

588

595

569

543

514

550

576

525

484

422

339

259

326

376

283

202

123

52

14

3

1

1

0

0

-

Monthly discharge, in second-feet, 1943-49

Month

October 1943 ...............................

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

Calendar year .......................

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

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

May

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

Water year 1943-44 ................ t ......

Seoondfoot-days

0

_

837

24,349

Maximum

0

_

440

Minimum

0

.

73

0

Mean

0

0

*"

£7 9

66.5

Runoff in 

acre-feet

0

_

48,300
SAN JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 239

Monthly discharge, In second-feet, of Maaera Canal near Prlant, Calif.,'1943-49--Contlnuad

Month

October 1944 ...............................

December: ...................................

Calendar year 1944 .......................

January 1945

February

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

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

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

Water year 1944-45 .......................

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

Calendar year 1945 .......................

May

August

Water year 1945-46 ......................

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

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

U»y. .......................................

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

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

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

Calendar year 1947 .......................

March

Uaw

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

Water year 1947-48 .......................

HoTember. ...................................

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

Calendar year 1948 .......................

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

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

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

Water year 1948-49 .......................

Secondfoot-days

1,446

26,286

8,957

55,252

5,164

67,079

934

10,222

59,976

0

57,677

1,159

51,403

0

39,938

«CQ

1 452

4,550

38,167

0

38,238

613

10,831

76,456

Maximum

90

440

139

442

506

235

, 283

506

258

356

408

0

408

275

07 c

291

71

332

0

311

1 Q»

425

368

425

0

425

231

601

768

Minimum

0

0

98

194

0

0

0

213

301

0

0

0

259

0

0

0

0

19

335

35

0

0

0

0

0

Mean

46.6

72.0

299

151

195

167

184

p*o

245

341

164

<JC1

0

158

O7c

38.6

141

0

109

327

152

104

0

104

19 8

f>*)A

£Ct=

361

209

Runoff in 

aore-feet

2,870

52,140

fto fYJC\

OQ no A

17,770

109,600

10,240

133,000

20,280

119,000

0

114,400

2,300

102,000

0

79,220

Z doA

728

9,020

75,710

0

75,850.

21,480

151,700
240 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Priant-Kern Canal at Priant, Calif.

Location.- Water-stage recorder, lat. 360 59'43", long. 119°42'17", in NW£ sec. 8, T. 11 

S., ft. 21 E., 0.25 mile southwest of Priant Dam and 0.5 mile northeast of town of 

Friant. Altitude of gage, about 460 feet (from topographic map). Prior to July 8, 

1949, staff gages at various sites and datum.

Records available.- March to September 1§49.

Extremes.- Maximum daily discharge during period, 485 second-feet Aug. 12; no flow at

Remarks.- Records good except those prior to July 8, which are poor. Canal diverts from 

left Dank of San Joaquin River at Priant Dam for irrigation in upper San Joaquin Valley.

Cooperation.- Gage-height record, 24 discharge measurements, and daily discharge for 

periods Mar. 22 to Apr. 11 and June 29 to July 4 furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb.

Month

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

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

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

Calendar year .......................

Febr 

Mapc

uary . ....................................

h yy-^.i ................................

April 1-11. . ................................

MAV

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

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

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

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

Water year .......................

Mar.

_

_

_

_

-

_

_

_

_

-

_

_

_

.

-

_

_

^

_

-

_

28

60

49

64

64

64

64

56

86

100

Apr.

88

72

72

65

55

"55

55

55

55

55

19

_

_

.

-

_

.

_

_

-

_

_

_

_

-

_

-

-

.

~

-

Secondfoot-days

_

635

646

_

8,133

11,895

1,625

-

May

Maximum

_

loo

88

_

416

485

210

-

June

.

-

_

_

-

.

-

-

_

-

_

_

_

_

-

-

_

.

-

_

_

_

_

-

_

-

-

63

166

-

July

188

143

30

26

0

0

0

0

48

215

316

314

314

306

301

299

301

308

336

358

369

378

384

380

378

391

401

409

416

414

410

Minimum

_

28

19

^

0

177

0

-

Aug.

408

415

431

436

440

443

452

457

459

473

481

485

448

442

434

401

378

386

401

393

384

387

378

374

359

347

259

186

192

177

189

Mean

.

63. S

58.7

M

262

384

54.2

-

Sept.

209

210

196

189

192

200

191

156

70

12

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Runoff In 

aore-feet

_

1,260

1,280

16,130

23,590

3,220

-
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Cottonwood Creek near Friant, Calif.

241

Location.- Water-stage recorder, lat. 37°00'05", long. 119°43'10", in SE^ sec. 6, T. 11 

S., K. 21 E., 1 mile upstream from mouth and 1 mile northwest of Friant. Altitude of 

gage, about 355 feet (from topographic map).

Drainage area.- 38 square miXes.

Records available.- October 1941 to September 1949.

Sxt.rernes.- Maximum discharge during year, 3.5 second-feet Mar. 23 (gage height, 0.89 -foot); 

no now for several months.

1942-49: Maximum discharge, 569 second-feet Jan. 22, 1943 (gage height, 3.89 feet); 

no flow for several months each year.

Remarks.- Records good. No diversion above station. Creek is tributary to San Joaquin 

River between Friant Dam and gaging station downstream.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.4 0 0.7 0.5 

.55 .1 .75 1.0 

.63 .2 .8 1.6 

.66 .3 .9 3.9

Discharge, in second-feet, water year October 1948 to September 1949

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. Nov. Dec. Jan. Feb.

Month

Goto 

Hove 

Dece

Ca

Janu: 

Febn 

Marc 

Apr! 

Mav

June 

July 

AugU 

Sept

Ha

Lendar year 1948 

Etx*y

ter year 1948-49 ...............

Mar.

0

o

0

.1

0

0 

0

o

0

.1

.1 

.1 

.1

.1 

.1

.1 

.1

0 

0 

.3

1.2

1.3 

3.0 

1.9 

1.1

.8 

.8 

.5

.5 

.5

.5

Apr.

0.4 

.3 

.3 

.2 

.1

.1 

.1 

.1 

.1 

O

0 

0 

0 

0 

0

0 

0

o

0 

0

0

o 

o

0 

0

0 

0 

0 

0 

0

nay

0 

0 

0

o

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0

.1

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

o

£££. Maxlmum

0 0 

0 0 

0 0

11.8 3.5

0 0 

0 0 

13.3 3.0 

1.7 .4 

.1 .1 

0 0 

0 0 

0 0 

0 0

15.1 3.0

June

Minimum

July

0

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Aug. Sept.

 ,..._ Runoff in "ean acre-feet

o o

0 0

o o

.03 24

0 0 

0 0 

.43 26 

.06 3.4 

.003 .2 

0 0 

0 0 

0 0 

0 0

,.04 30

Peak discharge (base, 5 see...-ft.)..- No peak above base.
242 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

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., 4 miles upstream from mouth and 3.5 miles southeast of Priant. Datum 

of gage is 357.02 feet above mean sea level (levels by State of California).

Drainage area.- 58 square miles.

Records available.- October 1941 to September 1949.

Extremes.- Maximum discharge during year, 53 second-feet Mar. 4; maximum gage height, 2.07 

feet June 21; no flow for several months.

1941-49: Maximum discharge, 1,530 second-feet Feb. 1, 1945 (gage height, 4.58 feet) 

from rating curve extended above 360 second-feet by logarithmic plotting; no flow for 

several months each year.

Remarks.- Records fair.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

8 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

80

21 

28

23 

24 

25

86 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Month

Onto 

Move 

Dece

Ca

Janu. 

Pebr 

Marc 

Aprl

Utav

June 

July 

Augu 

Sept

Wa

Jan.

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

1.1

 a.l

Feb.

aO.l

lendar year 1943

u&ry. .... ..*.... . .

ter year 1948-49 .......................

Peak discharge (base, 60 sec. -ft. - No pe

a No gage-height record; discharge compute

Mar.

aO.l 

a.l 

a.l 

22 

8.5

3.8 

3.8 

4.0 

2.8 

2.5

7.9 

5.7 

3.3 

2.5 

2.2

2.4 

3.4 

1.6 

2.8 

IS

5.7 

4.9 

30 

14 

8.2

6.3 

5.2 

4.9 

4.2 

3.3 

3.1

Apr.

Secondfoot -days

0 

0 

0

146.3

3.5 

2.8 

183.3 

22.2 

0 

6.9 

0 

0 

0

317.7

2.8 

3.5 

2.2 

1.9 

1.6

1.5 

1.5 

1.3 

1.2 

1.1

.9 

.6 

.6 

.5 

.4

.4 

.4 

.3 

.2 

.1

.1 

.1 

0 

0 

0

0 

0 

0 

0 

0

May

Maximum

0 

0 

0

78

1.1

30 

3.8 

0 

6.9 

0 

0 

0

30

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

6.9

0 

0 

0 

0

0 

0 

0 

0 

0

Minimum

July

0 

0 

0

~0

0

.1 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

.40

.08 

.10 

5.91 

.74 

0 

.33 

0 

0 

0

.60

Sept.

Runoff In 

acre-feet

0 

0 

0

290

5.0 

5.6 

364 

44 

0 

14 

0 

0 

0

433

ak above base. 

3 on basis of 2 discharge measurements.
SAM JOAQUIN RIVER TRIBUTARIES ABOVE PRESNO RIVER 243

James bypass near San Joaquin, Calif.

Location.- Water-stage recorder, lat. 36°39', long. 120°11', in SW$ sec. 1, T. 15 S., R. 

it> a., 3.1 miles north of San Joaquin. Altitude of gage, 165 feet.

Records available.- October 1947 to September 1949. April 1929 to September 1948 in files 

or Kings River Water Association.

Extremes.- Maximum discharge during year, 120 second-feet May 29 (gage height, 4.29 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 R'iver to San Joaquin River.

Cooperation.- Three discharge measurements furnished by Bureau of Reclamation.

Plsoharge, In second-feet, water year October 1948 to September 1949

Day

1

H 

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.

OctO 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Ha

Hov. Dec.

Month

Jan. Feb.

Bber. ...................................

Bber. ...................................

lendar year 1948

ter year 194S-49 .......................

Mar. Apr.

Secondfoot-days

0 

0 

0

1,313.6

0 

0 

0 

0 

224 

.6 

0 

0 

0

224.6

May

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

33 

86 

92 

13

Maximum

0 

0 

0

565

0 

0 

0 

0 

92 

.6 

0 

0 

0

92

June

0.6 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

0 

0

o

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

3.59

0 

0 

0 

0 

7.23 

.02 

0 

0 

0

.62

Sept.

Runoff In 

acre-feet

0 

0 

0

2,600

0 

0 

0 

0 

444 

1.2 

0 

0 

0

445
244 FRESNO RIVER BASIN

Fresno River near Knowles, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°14', long. 119°46', in NW^ 

sec. 15, T. 8 S., R. 20 E., at Presno Crossing, 0.1 mile downstream from Bean Gulch 

and 6 miles northeast of Knowles. Altitude of gage, about 1,140 feet (from topographic 

ntap).

Drainage area.- 132 square miles.

Records available.- September 1911 to December 1913, November 1915 to September 1949.

Average discharge.- 34 years (1911-12, 1916-49), 79.5 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet Mar. 4 (gage height, 3.47 

reet); minimum, 0.1 second-foot Oct. 1, Sept. 7, 34.

1911-13, 1915-49: Maximum discharge, 7,630 second-feet Mar, 13, 1938 (gage height, 

8.67 feet); no flow at times in 1919, 1924, 1926, 1928-31, 1933-34, 1947, 1948.

Remarks.- Records good except those for periods of ice effect or indefinite stage-discharge 

 relation, which are fair. 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 1948 to September 1949

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.

0.1 

.3 

.3 

.2 

.2

.2

1.9 

1.9

1.6

1.4

1.7 

1.7 

3.0 

4.5 

4.2

3.9

3.6 

3.3 

3.3 

3.0

3.0 

3.0 

3.0 

2.8 

2.6

2.8 

2.8 

3.0 

3.0 

3.3 

3.6

Nov.

4.2 

4.2

4.8 

5.1

5.4

4.8 

4.2 

4.2 

3.9 

3.9

3.9 

3.0 

2.8

3.3 

3.3

3.3 

3.3 

3.3 

3.6 

3.9

3.9 

4.5 

4.2 

3.9 

4.2

4.2 

4.2 

3.9

3.9 

4.2

Dec.

4.8

4.8

7.6 

6.4

8.0 

9.2 

8.4 

8.8 

8.4

7.6 

7.6 

8.0 

14 

15

10 

14 

17 

13 

11

10 

*10 

9.6 

8.0 

6.0

15 

45 

25 

17 

14 

13

Jan.

12 

14 

12 

b6 

b6

b8 

b9 

b8

b6

b6 

b8 

8.8 

9.2 

1)6

b6 

b6 

11 

11 

29

*19 

23 

23 

14 

blO

blO

b9 

b9 

b9 

b9 

b9

Feb.

14

14 

15 

14 

19

17 

37 

25 

20 

22

30 

37 

24 

23 

23

22 

23 

26 

30 

32

32 

30 

*33 

35 

51

45 

53 

41

Month

Oo to 

Nove 

Dace

Ca

janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 360 see. -ft.).- Mar.

Mar.

35 

62 

226 

678 

202

117 

95 

87 

72 

98

232 

133 

110 

87 

87

77 

87 

75 

91 

121

80 

87 

149. 

133 

106

87 

87 

91 

80 

72 

69

Apr.

64 

66 

64 

69 

75

84 

77 

75 

72 

80

87 

87 

87 

87 

84

77 

80 

75 

66 

66

75 

106 

102 

98 

91

80 

75 

100 

125 

121

Secondfoot-days

73.4 

119.5

363.0

15,236.1

334.0 

787 

3,813 

2,495 

4,441 

2,328 

522.4 

117.1 

37.9

15,431.3

4 (5:30 a.m

May

125 

133 

133 

137 

137

145 

145 

133 

137 

129

141 

141 

141 

153 

153

153 

161 

191 

165 

161

149 

145 

145 

149 

149

141 

133 

129 

129

133 

125

Maximum

4.5 

5.4 

45

1,170

29 

53 

678 

125 

191 

121 

30 

7.2 

2.3

678

June

121 

121 

121 

113 

113

110 

110 

110 

102 

102

106 

102 

95 

91 

80

75

66 

61 

64 

58

53 

51 

47 

43 

41

37 

37 

35 

33 

30

July

Minimum

0.1 

2.8 

4.8

0

6 

14 

35 

64 

125 

30 

7.6 

2.1 

.5

.1

3U 

27 

26 

25 

25

25 

25 

25 

23 

22

20 

19 

17 

16 

16

16 

14 

14 

14 

14

14 

11 

10 

11 

11

10 

9.2

8.4 

8.8 

8.4 

7.6

Aug.

7,2 

6,4 

7.2 

7.2 

6.4

5.7 

4.5 

3.0 

2.8 

2.6

2.8 

3.0 

4.2 

3.3 

3.9

3.3 

2.8 

3.3 

3.3 

3.0

2.1 

2.5 

3.3 

3.9 

3.9

3.3 

2.8 

2.5 

2.5 

2.5 

eg.l

Mean

2.37 

3.98

3.1.7

41.6

10.8 

28.1 

123 

83.2 

143 

77.6 

16.9 

3.78 

1.26

42.3

Sept,

1,4 

el. 6 

1,9 

1.7 

el.l

8,9 

e.8 

.8 

1.2 

.8

.8 

.7 

1,4 

1.6 

1.6

1.6 

1.4 

1.7 

1.6 

1.4

.8 

1.1 

.5 

.5 

,9

.6 

1.4 

1.7 

2.1 

2.3

Runoff In 

acre-feet

146 

237 

720

30,220

662 

1,560 

7,560 

4,950 

8,810 

4,620 

1,040 

232 

75

30,610

) 1,220 sec. -ft. Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

e Stage-discharge relation Indefinite; discharge computed on basis of portions of graph which were 

unaffected by dredger operation.
PRESNO RIVER BASIN 245

Fresno River near Daulton, Calif.

Lopat.ion.- Water-stage recorder, lat. 37°06', long. 119°53', in NW£ sec. 3, T. 10 S., R. 

is K., 0.5 mile downstream from Willow Cr.eek 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 1949.

Extremes.- Maximum discharge during year, 1,510 second-feet Mar. 4 (gage height, 3.05 

feet); no flow Oct. 1-24, Sept. 9-30.

1944-49: Maximum discharge, 8,090 second-feet Feb. 2, 1945 (gage height, 7.10 feet); 

no flow at times in 1945, 1947-49.

Remarks.- Records fair. Water is diverted into Fresno River Basin above station from San 

doaquin and Merced River Basins. Small diversions above station for irrigation. Some 

regulation at low flow, by mining operations above station.

Cooperation.- Eleven discharge measurements furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1948 to September 1949 

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

£2 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0

0 

0 

0 

0 

0

0 

0 

0 

1.0 

1.5

4.1 

2.7 

2.7 

3.3 

1.7 

3.2

Nov.

1.3 

.9 

3.3 

3.3 

4.1

4.5 

4.5 

4.5 

3.8 

3.9

4.1 

4.1 

3.6 

3.1 

2.9

4.1 

3.3 

3.8 

4.2 

3.8

4.1 

4.5 

3.8 

4.8 

4.5

4.8 

4.5 

4.5 

4.5 

4.5

Dec.

4.8 

4.8 

5.3 

6.6 

7.6

7.2 

9.6 

8.6 

7.2 

7.6

7.6 

7.2 

7.2 

9.6 

14

12 

12 

16 

15 

11

9.8 

9.8 

9.0 

9.8 

8.3

8.6 

29 

36 

21 

16 

13

Jan.

13 

13 

16 

13 

8.6

10 

13 

14 

11 

9.8

6.3 

8.3 

11 

11 

11

8.3 

8.3 

9.0 

14 

32

37 

30 

38 

31 

20

18 

19 

17 

16 

16 

16

Feb.

17 

16 

21 

22 

22

30 

41 

56 

41 

34

34 

58 

43 

32 

28

25 

20 

24 

28 

31

35 

32 

34 

37 

46

55 

58 

56

Month

Goto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

43 

43 

130 

942 

388

211 

152 

149 

115 

124

311 

242 

172 

136 

117

112 

108 

102 

112 

194

128 

110 

202 

194 

146

126 

112 

106 

102 

90 

90

Apr.

81 

79 

79 

77 

85

88 

90 

88 

85 

88

94 

98 

98 

98 

100

96 

94 

94 

86 

79

81 

104 

112 

110 

108

96 

85 

94 

122 

131

Secondfoot -days

20.2 

115.6 

351.2

17,056.7

500.6 

976 

5,309 

2,820 

4,6Q9 

2,454 

410.2 

51.2 

1.7

17,618.7

May

128 

131 

141 

149 

149

152 

155 

155 

146 

144

138 

138 

141 

149 

152

149 

146 

194 

184 

178

185 

154 

150 

150 

150

146 

140 

136 

135 

134 

130

Maximum

4.1 

4.8 

36

1,450

38 

58 

942 

131 

194 

125 

29 

4.9 

.4

942

June

125 

122 

119 

118 

115

114 

115 

114 

111 

111

109 

105 

101 

96 

91

83 

78 

71 

67 

85

58 

54 

48 

45 

42

40 

37 

35 

34 

31

July

29 

28 

25 

24 

22

21 

21 

20 

19 

17

15 

14 

13 

12 

11

9.6 

9.1 

8.6 

8.2 

8.8

7.3 

7.0 

6.8 

7.8 

8.2

8.2 

8.2 

7.8 

4.0 

3.8 

6.0

Minimum

0 

.9 

4.8

0

8.3 

16 

43 

77 

128 

31 

3.8 

.3 

0

0

Aug.

4.5 

4.9 

3.9 

3.9 

4.3

3.9 

3.6 

2.9 

1.6 

1.6

1.1 

.8 

.6 

.8 

1.4

.8 

2.0 

.8 

.4

.4

.4

.5 

.4 

.3 

.4

.9 

1.4 

1.3

.6

.4 

.4

Mean

0.65 

3.85 

11.3

46.6

16.1 

34.9 

171 

94.0 

149 

81.8 

13.2 

1.65 

.57

48.3

Sept.

0.4 

.3 

.3 

.2 

.2

.1 

.1 

.1 

0 

0

0 

0 

0

o

0

0 

0

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

40 

229 

697

33,840

993 

1,940 

10,530 

5,596 

9,140 

4,870 

814 

102 

3.4

34,950

Peak discharge (base.. 500 gee.-ft.j.- Mar. 4 (11 a.m.) 1,510 see.-ft. 

M7809 O - 51 - 17
246 TRIBUTARIES AMD DIVERSIONS BETWEEN PBESNO RIVER AND MERCED RIVER

Chowohllla River at Buohanan dam site, Calif.

Location.- Water-stage recorder, l^t. 37°13', long. 130°00', In Sw£ sec. 23, T. 8 S., R. 

IB E., 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 1913 .(levels by Merced Irrigation 

District).

Drainage area.- 238 square miles.

Records available.- October 1921 to September 1933, October 1930 to September 1949.

Average discharge.- 19 years (1930-49), 106 second-feet.

Extremes.- Maximum discharge during year, 3,360 second-feet Mar. 4 (gage height, 8.38 

reet); no flow Oct. 1 to Nov. 28, July 19 to Sept. 30.

1921-23, 1930-49: Maximum discharge, 18,900 seoond-feet Mar. 3, 1938 (gage height, 

14.4 feet, from floodmarks), from rating curve extended above 6,000 second-feet by logarithmic plotting; no flow for part of each year except 1937, 1938, 1940-43.

Remarks.- Records good. No storage or large diversion above station. 

Revisions (water years).- W 931: 1933(P), 1936-38(P).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

.3 

.5 

.7

Dec.

0.5 

.8 

1.4 

2.2 

2.7

3.0 

2.8 

3.9 

3.4 

2.8

2.7 

2.7 

2.7 

3.2 

5.9

6.9 

7.0 

7.7 

8.9 

6.9

6.0 

S.7 

S.2 

5.0 

4.8

S.9 

25 

32 

21 

14 

12

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

wn»

June 

July 

Augu 

Sept

Wa

Jan.

10 

9.9 11

10 

8.3

7.6 

7.6 

7.4 

7.4 

b7

b7 

6.5 

6.7 

6.4 

6.4

6.2 

6.2 

6.2 

8.3 

25

42 

28 

33 

26 

19

16 

15 

14 

14 13 ' 

13

Feb.

13 

13 

16 

18 

19

25 

58 

92 

42 

32

34 

95 

50 

37 

30

30 

30 

38 

53 

65

59 

55 

57

59 1 

88

76 

93 

73

mber. ...........

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base. 770 see. -ft.).- Mar.

b Stage-discharge relation affected by Ice

Mar.

58 

62 

500 

1,760 

3S2

202 

143 

152 

122 

141

304 

205 

156 

128 

116

110 

109 

102 

132 

276

143 

122 

255 

247 

175

139 

122 

117 

109 

95 

92

Apr.

86 

81 

77 

76 

75

76 

74 

74 

69 

68

70 

70 

67 

63 

60

58 

56 

56 

51 

47

43 

45 

44 

42 

41

39 

37 

35 

33 

32

Secondfoot-days

0 

1.5 

214.7

12,177.5

404.1 

1,330 

6,776 

1,748 

727 

109.6 

3.2 

0 

0

11,334.1

4 (2 a.m.)

May

32 

30 

29 

28 

26

24 

24 

22 

21 

22

22 

21 

18 

18 

28

30 

30 

30 

32

41

36 

28 

24 

20 

17

13 

13 

12 

12 

12 

12

Maximum

0 

.7 

32

2,490

42 

95 

1,760 

86 

41 

12 

.3 

0 

0

1,760

June

12 

12 

11 

9.7 

8.7

7.6 

7.0 

6.5 

5.9 

5.3

4.7 

3.9 

2.9 

2.1 

1.2

.7 

.9 

.8 

1.1 

.8

.6 

.4 

.6 

.5 

.5

.5 

.5 

.4 

.4 

.4

July

Minimum

0 

0 

.5

0

6.2 

13 

58 

32 

12 

.4 

0 

0 

0

0

0.3 

.3 

.3 

.3 

.2

.2 

.2 

.2 

.8 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

Mean

0 

.05 

6.93

33.3

13.0 

48.2 

219 

58.3 

23.5 

3.65 

.10 

0 

0

31.1

3,360 sec. -ft.

Sept.

Runoff In 

acre-feet

0 

3.0 

426

24,150

802 

2,680 

13,440 

3,470 

1,440 

217 

6.3 

0 

0

22,480
TRIBUTARIES AND DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER 

Chamberlain Slough near El Nldo, Calif.

847

Location.- Water-stage recorder, lat. 37°06'45", long. 120°35'20", In NE£ sec. 31, T. 9 

*> R- 13 E., 100 feet downstream from head and 5 miles southwest of El Nido. Datum 

of gage is 99.14 feet above mean sea level (Bureau of Reclamation bench mark).

Records available.- October 1939 to June. 30, 1949 (discontinued).

Extremes.- Maximum discharge during period, 124 second-feet Jan. 2 (gage height 2 75 

reet); minimum, 0.6 second-foot Nov. 26.

1944-49: Maximum discharge, 2,060 second-feet Feb. 9, 1945 (gage height, 10.84 

feet, present datum); no flow at times (result of irrigation operations).

Remarks.- Records good. Plow regulated by Priant and Mendota Dams and by diversion through 

Temple Slough. Many diversions from river above station for irrigation. Same recorder 

used for San Joaquin'Jiver near El Nido (see p. 219); add discharge to that station to 

obtain total flow of river at this point.

Cooperation.- Pour discharge measurements furnished by Bureau of Reclamation and three by 

state or California.

Discharge, In second-feet, water year October 1948 to September 1949

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.

17 

13 

12 

15 

20

14 

11 

7.8 

6.7 

6.2

6.4 

7.0 

7.8 

10 

12

8.7 

7.0 

6.2 

6.4 

7.0

8.1 

9.6 

6.7

5.3 

4.8

4.6

4.6 

4.3 

5.3 

7.8 

7.3

Nov.

4.8 

4.0 

4.0 

4.6 

3.3

3.0 

2.8 

2.5 

2.5 

2.5

2.3 

2.3

2.1 

2.1 

1.6

1.6 

1.4 

1.4 

1.4 

1.4

1.4 

1.2 

1 T 2 

1.2 

.9

.9 

l.Z 

.9 

.9 

1.2

Dec.

1.2 

1.2 

1.4 

1.6 

1.6

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.2 

1.2 

1.2

1.2 

1.4 

1.4 

1.4 

1.2

.9 

.9 

.7 

.7 

.7

1.2 

1. 

1. 

1. 

1. 

1.

Jan.

30 

115 

115 

71 

44

63 

91 

102 

102 

88

67 

56 

43 

37 

34

31 

28 

26 

25 

27

24 

25 

27 

38 

47

51 

54 

49 

36 

29 

18

Feb.

13 

12 

12 

11 

13

12 

14 

12 

22 

19

21 

20 

15 

10 

9.0

8.4 

8.1 

8.1 

8.1 

9.0

8.7 

8.4 

8.4 

8.7 

9.0

9.3 

10 

11

Month

Octo 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl

Man

June 

July 

Augu 

Sept

Th

lendar year 1948

e period.......... ......................

Mar.

11 

9.6 

9.0 

9.9

14

15 

17 

19 

15 

14

13 

18 

20 

19 

16

11 

7,0 

6.7 

7.8 

8.1

7.6 

14 

14 

11 

11

10 

9.9 

14 

11 

8.1 

7.6

Apr.

6.7 

6.7 

9.9 

11 

13

9.3 

8.1 

7.6 

6.7 

6.2

6.2 

4.8 

4.6 

4.8 

6.2

6.4 

6.2 

5.6 

5.9 

6.4

7.0 

9.3 

8.1 

7.6 

7.6

7.8 

V 9,0 

 9.9 

10 

13

Secondfoot-days

269.6 

62.6 

39.1

3,279.0

1,593 

330.2 

378.3 

231.6 

373.5 

2 53-. 3

-

May

13 

15 

17 

12 

10

9.3 

9.3 

15 

22 

20

14 

11 

9.6- 

8.1 

7.6

9.5 

17 

9.4 

13

17

20 

19 

16 

12 

8.4

7.3 

6.2 

6.2 

6.2 

6.4 

7.0

Maximum

20 

4.8 

1.6

175

115 

22 

20 

13 

22 

10

-

June

9.0 

9.6 

9.0 

8.7 

9.6

8.4 

6.4 

5.9 

8.4 

8.4

7.6 

9.9 

9.9 

8.4 

7.8

7.6 

7.0 

6.7 

9.0 

9.0

.9.0 

10 

7.6 

6.7 

7.8

10 

9.9 

10 

7.3 

8.7

July

Minimum

4.3 

.9 

.7

0

18 

8.1 

6.7 

4.6 

6.2 

5.9

-

Aug.

Mean

8.70 

2,09 

1.26

8.96

51.4 

11.8 

12.2 

7.72 

12.0 

8.44

-

Sept.

Runoff in 

acre-feet

535 

124 

78

6,500

3,160 

655 

750 

459 

741 

502

7,000
248 TRIBUTARIES AND DIVERSIONS BETWEEN FRESNO RIVER AND MERCED RIVER

Salt Slough near Los Banos, Calif.

Location.- Water-stage recorder, .lat. 37°09'35", long. 120°48'45", in Sanjon de Santa Rita 

 Uraht'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 1949.

Extremes.- Maximum discharge during year, 240 second-feet May 21 (gage height, 3.76 feet); 

minimum, 17 second-feet Sept. 19, 20,

1944-49: Maximum discharge, 1,200 second-feet May 18, 1945 (gage height, 8.32 feet); 

minimum, that of Sept. 19, 20, 1949.

Remarks.- Records fair. Flow regulated by irrigation operations above station. Salt 

Slough is a continuation of Pick Anderson Slough system.

Cooperation.- Twelve discharge measurements furnished by Bureau of Reclamation.

Discharge, In aeeond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

SO 

31

Oct.

145 

143 

145 

151 

141

136 

129 

106 

95 

92

94 

97 

105 

110 

107

104 

109 

100 

97 

93

97 

103 

113 

91 

SB

89 

75 

69 

68 

69 

65

Nov.

63 

61 

66 

70 

72

71 

68 

67 

64 

58

58 

56 

56 

53 

55

81 

63 

60 

61 

62

60 

58 

59 

61 

57

52 

49 

53 

56 

52

Dec.

51 

50 

49 

49 

54

50 

47 

48 

49 

50

50 

45 

46 

39

38

41 

41 

40 

39

40

39 

39 

39 

40 

39

41 

43 

43 

42 

41 

41

Jan.

37 

' 36 

37 

40 

62

67 

56 

51 

48 

56

78 

89 

93 

93 

88

80 

73 

67 

66 

65

62 

61 

59 

56 

54

53 

49 

48 

46 

46 

43

Feb.

42 

42 

45 

48 

48

45 

46 

49 

51 

53

56 

60 

61 

60 

68

69 

67 

56 

54 

53

53 

50 

52 

56 

58

56 

61 

65

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

64 

65 

69 

97 

109

121 

118 

115 

121 

123

122 

117 

121 

122 

141

134 

128 

124 

130 

145

159 

156 

163 

176 

169

156 

139 

142 

136 

132 

129

Apr.

125 

119 

121 

119 

109

94 

93 

99 

97 

93

93 

105 

109 

101 

107

110 

143 

160 

195 

184

184* 

178 

168 

163 

172

198 

182 

181 

177 

176

Secondfoot -days

3,224 

1,822 

1,363

30,093

1,859 

1,524 

3,943 

4,155 

5,453 

3,107 

1,521 

1,359 

S98

30,228

May

189 

199 

199 

188 

168

169 

180 

172 

209 

209

222 

209 

194 

202 

213

215 

213 

205 

203 

226

231 

201 

152 

139 

128

107 

100 

98 

103 

109 

101

Maximum

151 

81 

54

365

93 

69 

176 

198 

231 

148 

58 

56 

47

231

June

110 

103 

99 

103

113

118 

115 

109 

94 

89

91 

94 

95 

79 

71

75 

92 

88 

112 

133

129 

138 

143 

148 

132

116 

100 

85 

71 

62

July

52 

52 

55 

55 

49

53 

57 

58 

52 

50

46 

50 

56 

51 

46

46 

52 

51 

48 

52

49 

53 

51 

39 

39

39 

38 

41 

44 

44 

53

Minimum

65 

49 

38

26

36 

42 

64 

93 

98 

62 

38 

34 

18

18

Aug.

Mean

104 

60.7 

44.0

82.2

60.0 

54.4 

127 

138 

176 

104 

49.1 

43.8 

29.9

82.8

49 

48 

46 

50 

48

45 

43 

49 

55 

48

43 

44 

51 

53 

56

53 

45 

38 

37 

38

46 

42 

40 

35 

34

36 

36 

35 

35 

36 

45

Sept,

37 

36 

39 

37 

33

29

29 

29 

32 

31

33 

37 

37 

34 

33

33 

25 

21 

18 

18

18 

18 

20 

30 

47

37 

29 

29 

26

23

Runoff In 

acre-feet

6,390 

3,610 

2,700

59,860

3,690 

3,020 

7,820 

8,240 

10,820 

6,160 

3,020 

2,700 

1,780

59,950
MERCED RIVER BASIN 249

Merced River at Happy Isles Bridge, near Yosemitej Calif.

Location.- Water-stage recorder, lat. 37°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. Altitude of gage, about 4,000 feet (from 

topographic map).

Drainage area.- 181 square miles.

Re.eords available.- August 1915 to September 1949.

Average discharge.- 34 years, 336 second-feet.

Extremes.- Maximum discharge during year, 2,480 second-feet May 27 (gage height, 6.40 

 1'eet); minimum, 2.8 second-feet Sept. 19.

1915-49: 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 doubtful gage-height record, which are 

fair. Small diversion above station for Yosemite Valley water supply.

Rating table, water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 1-10, Sept. 7-30)

1.3 3.0 1.7 19 2.5 119 4.0 620 

1.4 5.0 1.9 34 2.7 161 4.6 940 

1.5 8.0 2.1 55 3.0 £41 5.2 1,350 

1.6 13 2.3 83 3.5 405 6.1 2,150

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

IS 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.2 

5.6 

5.6 

5.0 

5.0

4.8 

4.6 

4.2 

4.0 

4.2

4.2 

4.8 

6.2 

12 

12

10 

9.5 

9.5 

9.0 

9.0

9.0 

9.5 

9.0 

9.0 

8.5

8.0 

8.0

7.7 

7.7 

8.5 

9.0

Nov.

9.0 

18 

16 

18 

16

15 

14 

13 

12 

12

11 

11 

10 

10 

9.0

9.0 

10 

9.5 

10 

9.5

8.5 

8.5 

8.5 

8.0 

7.4

8.0 

6.2 

7.1 

5.9 

5.9

Dec.

6.2 

6.5 

6.5 

6.2 

8.0

8.5 

10 

11 

11 

11

11 

12 

12 

12 

11

12 

14 

14 

15 

16

18 

14 

15 

12 

14

16 

17 

18 

19 

20 

21

Jan.

23 

21 

20 

18 

19

20 

21 

21 

19 

17

17 

17 

15 

15 

15

14 

14 

15 

14 

14

16 

15 

16 

16 

16

17 

17 

17 

17 

17 

17

Feb.

17 

17 

17 

17 

18

18 

17 

17 

21 

22

20 

19 

21 

22 

25

25 

28 

31 

34 

35

32 

32 

32

34 

33

35 

36 

37

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

HB

lendar year 1948 

ftry

ter year 1948-49 .......................

Mar.

3S 

39 

40 

36 

41

43 

45 

43 

44 

47

46 

48 

48 

53 

54

55 

55 

59 

65 

62

63

63 

60 

60 

60

62

83 

90 

78 

77 

74

Apr.

1 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

229.3 

316.0 

397.9

112,678.3

530 

712 

1,731 

.19,612 

39,674 

26,878 

4,971 

1,010 

183.5

96,244.7

Peak discharge (base, 1,400 sec. -ft.).- Apr. 24 (9:30

76 

85 

92 

106 

135

157 

157 

146 

181 

247

342 

421 

498 

616 

650

650 

745 

730 

720 

798

020 

250 

370 

430 

370

160 

110 

180 

110 

060

May

1,180 

1,330 

1,220 

994 

1,010

1,060 

1,220 

1,220 

916 

847

1,060 

1,450 

1,540 

1,900 

1,250

1,340 

1,490 

1,150

923 

750

705 

904 

1,320 

1,700 

1,900

2,110 

2,130 

1,820 

1,450 

1,010 

776

Maximum

12

18 

21

2,560

23 

37 

90 

1,430 

2,130 

1,680 

290- 

110 

15

2,130

June

685 

852 

982 

988

1,100

1,410 

1,430 

1,550 

1,560 

1,680

1,490 

1,370 

1,270 

1,270

1,160

1>080 

958 

803 

635 

453

380 

377 

425 

433 

473

526 

469 

402 

352

315

July

286 

274 

271 

290 

274

238 

216 

197 

191 

194

197 

191 

184 

176 

168

166 

152 

137 

127 

121

106 

95 

90 

86 

78

71 

68 

67 

67 

63 

130

Aug.

110 

74 

63 

58 

54

50 

45 

40 

36

33

32 

32 

2E 

25 

23

22 

28 

19 

18 

17

17 

20 

22 

21 

19

19 

18 

18 

17 

16 

16

Sept.

15 

15 

12 

10 

10

9.0 

7.4 

7.4 

6.8 

6.8

5.9 

5.3

5.3 

4.6 

3.6

3.6 

3.6 

3.4 

3.0 

3.2

3.8 

5.0 

4.8 

4.4 

4.2

4.2 

4.0 

4.0 

4.0 

4.2

Mlnimu* Mean *£*£

4.0 7.40 455 

5.9 10.5 627 

6.2 12.8 789

4.0 308 223,500

14 17.1 1,050 

17 25.4 1,410 

36 55.8 3,430 

76 654 38,900 

705 1,280 78,690 

315 896 53,310 

63 160 9,860 

16 32.6 2,000 

3.0 6.12 364

3.0 264 190,900

p.m.) 1,690 Sec. -ft.; May 1 (12 p.m.) 1.4EO

see.-ft.: May 14 (3 a.m.) 2,370 sec.-ft.: May 27 (1:30 a.m.) 2,480 sec.-ft.s June 10 (5 a.m.) 1,800 

sec.-ft.

Ijote.- Doubtful gage-height record Sept. 3-20; discharge computed on basis of recorded gage-heights 

and records for nearby streams.
250 MERCED RIVER BASIN

Merced River at Pohono Bridge, near Yosemite, Calif.

Location.- Water-stage recorder, lat. 37°43'01", long. 119°39'55", 0.4 mile upstream from 

Artist Creek and 4.2 miles southwest of YoSemite Lodge, in Yosemite National Park, 

Mariposa'County. Altitude of gage, about 3,870 feet (from topographic map).

Drainage area.- 321 square miles.

Records available.- November 1916 to September 1949.

Average discharge.- 32 years (1917-49), 581 second-feet.

Extremes.- Maximum discharge during year, 4,450 second-feet May 14 (gage height, 7.96 

reetJ; minimum, 18 second-feet Sept. 26-30.

1916-49: Maximum discharge, 22,000 second-feet Dec. 11, 1937 (gage height, 19.1 

feet, from floodmarks in gage h6use),' 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 table, water year,, 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.7 17 1.2 64 2.4 293 4.5 1,23O 

.8 23 1.4 91 2.8 408 5.5 1,960 

.9 31 1.7 139 3.2 550 6.5 2,850 

1.0 41 2.0 196 3.7 765 7.3 3,690

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

22 

22 

22 

22 

21

21 

21 

21 

20

20

21 

22 

25 

27 

29

26 

26 

26 

26 

25

25 

25 

25 

24 

24

24 

24 

24 

24 

25 

25

Nov.

27 

32 

38 

38 

37

33 

32 

30 

29 

29

28 

27 

26 

26 

25

25 

25 

25 

25 

25

24 

24 

24 

23 

23

23 

22 

22 

22 

21

Dec.

21 

21 

21 

22 

23

25 

25 

25 

25 

25

26 

26 

28 

31 

27

26 

29 

29 

29 

29

33 

34 

31 

29 

29

33 

38 

35 

36 

37 

38

Jan.

41 

43 

34 

35 

36

39 

40 

41 

41 

33

38 

38 

37 

37 

36

33 

33 

33 

34 

36

37 

37 

37 

35 

35

38 

37 

37 

37 

37 

37

Feb.

38 

3S 

39 

39 

4O

4O 

40 

39 

41 

44

48 

43 

44 

46 

49

51 

53 

58 

64 

70

69 

72 

72 

76 

74

78 

80 

80

Month

00 to 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Ha

lendar year 1948 

&ry

ter year 1948-49 .......................

Peak discharge (base, 2,200 sec. -ft.).- As

sec. -ft.; May 8 (1 a.m.) 2,610 seo.-ft.; Maj 

ft.; June 8 (3 a.m.) 2,470 sec. -ft.

Mar.

83 

91 

92 

100 

91

92 

98 

94 

97 

104

112 

109 

109 

112 

116

120 

122 

127 

143 

139

141 

144 

137 

132 

129

132 

157 

188 

168 

166 

157

Apr.

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

Secondfoot-days

734 

810 

8S6

190,458

1,142 

1,525 

3,802 

37,443 

73,480 

38,848 

6,594 

1,790 

67S

167,732

r. 24 (11 p. 

14 (5 a.m.]

155 

170 

182 

205 

260

323 

331 

293 

351 

492

680 

825 

956 

140 

180

180 

360 

330 

360 

530

960 

420 

590 

690 

630

260 

200 

260 

110 

O20

May

2,210 

2,520 

2,340 

1,950 

2,020

2,060 

2,26O 

2,270 

1,780 

1,670

2,110 

2,770 

3,020 

3,670 

2,480

2,540 

2,740 

2,240 

1,840 

1,540

1,440 

1,700 

2,340 

2,860 

3,160

3,430 

3,450 

2,990 

2,540 

1,980 

1,560

Maximum

29 

38 

38

4,220

43 

80 

188 

2,690 

3,670 

2,290 

383 

174 

29

3,670

June

1,340 

1,480 

1,640 

1,650 

1,780

2,150 

2.14O 

2,240 

2,200 

2,290

2,100 

1,890 

1,730 

1,680 

1,540

1,420 

1,260 

1,070 

926 

706

594 

562 

594 

594 

610

652 

606 

526 

464 

414

July

383 

360 

351 

360 

348

312 

290 

272 

260 

257

257 

250 

240 

228 

218

214 

200 

184 

170 

161

144 

132 

124 

119 

117

111 

103 

102 

104 

102 

121

Aug.

174 

116 

100 

92 

87

81 

74 

69 

64 

60

59 

57 

54 

52 

48

45

43 

41 

39 

38

36 

37 

38 

38 

38

38 

37 

36 

35 

33 

31

Minimum Mean

20 23.7 

21 27.0 

21 28.6

20 520

33 36.8 

38 54.5 

83 123 

155 1,248 

1,440 2,370 

414 1,295 

102 213 

31 57.7 

18 22.6

18 460

m.) 3,300 sec. -ft.; May 2 (12:30 

4,450 8eo. -ft.; Hay 27 (l a.m.)

Sept.

29 

29 

28 

28 

28

27 

27 

25 

25 

25

25 

24 

24 

23 

22

21 

21 

21 

20 

19

19 

19 

21 

19 

19

18 

18 

18 

18 

18

Runoff in 

acre-feet

1,460 

1,610 

1,760

377,700

2,270 

3,020 

7,540 

74,270 

145,700 

77,050 

13,080 

3,550 

1,340

332,600

a.m.) 2,820 

3,950 aec.-
MERCED RIVER BASIN 251

Merced River at Bagby, Calif.

Location.- Water-stage recorder, lat. 37°36'SO", 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.

Kecoras available.- October 1947 to September 1949. November 1932 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.- 23 years (1923-27, 1929-30, 1931-49), 1,222 second-feet.

Extremes.- Maximum discharge during year, 10,600 second-feet Mar. 3 (gage height, 7.54 

reet); minimum, 28 second-feet Sept. 23, 24.

1922-49: 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 1948-49, except period of Ice effect 

(gage height, In feet, and discharge, in second-feet) 

(Backwater corrections applied Oct. 1 to Feb. 11)

0.7 22 1.5 153 3.9 1,830 

.8 31 1.8 252 4.5 2,690 

.9 42 2.1 375 5.3 4,090 

1.0 54 2.4 540 6.0 5,640 

1.1 68 2.9 870 6.4 6.72O 

1.3 104 3.4 1,280

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

39 

30 

31

Oct.

43 

42 

42 

41 

42

42

42 

41 

40 

40

42 

50 

64 

71 

71

67 

64 

58 

55 

55

54 

53 

52 

50 

50

50 

50 

50 

50 

53 

55

Nov.

57 

61 

67 

80 

82

78 

73 

68 

65 

64

61 

60 

60 

58 

58

58 

60 

58 

58 

60

60 

58 

60 

60 

58

58 

58 

58 

55 

55

Dec.

54 

57 

62 

76 

71

82 

93 

78 

80 

80

76 

75 

76 

118 

132

98 

120 

137 

109 

96

96 

96 

94 

91 

73

116 

443 

260 

177 

153 

143

Jan.

143 

180 

165 

120 

118

127 

132

130 

127 

116

89 

blOO 

bllO 

109 

104

98 

93 

104 

113 

241

183 

200 

216 

177 

148

148 

1*8 

140 

140 

140 

135

Feb.

135 

132 

145 

148 

168

174 

279 

260 

213 

209

486 

516 

357 

302 

279

267 

298 

375 

442 

486

458 

420 

458 

552 

639

646 

658 

516

Month

Ooto 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948

h. ......................................

ter year 1948-49 .......................

Mar.

474 

692 

4,100 

3,730 

1,540

952

751 

684 

600 

730

l',520 

1,620 

1,170 

915 

835

807 

807 

744 

867 

975

793 

758 

863 

842 

765

646 

717 

800 

751 

678 

632

Apr.

1

1 

1, 

1, 

2, 

2,

2, 

2, 

2, 

2, 

2,

3, 

4, 

4, 

4, 

4,

4, 

3, 

3, 

3, 

3,

Secondfoot -days

1,579 

1,866 

3,512

334 , 311

4,294 

10,018 

32,758 

71,505 

119,410 

54,357 

8,716 

2,485 

1,089

311,589

Peak discharge (base, 6,OOO sec. -ft.).- Mar. 3 (8 p.m.

600 

620 

652 

704 

807

952 

968 

952 

960 

180

510 

730 

920 

200 

530

320 

690 

550 

420

630

320 

190 

600 600 P 

890

010 

840 

980 

690 

490

May

3,580 

4,270 

4,150 

3,320 

3,400

3,570 

3,840 

3,940 

3,110 

2,660

3,200 

4,370 

4,730 

6,450 

4,210

3,940 

4,400 

3,880 

3,030 

2,530

2,280 

2,660 

3,530 

4,440 

4,890

5,230 

5,370 

4,710 

3,940 

3,250 

2,530

Maximum

71 

82 

443

7,300

241 

658 

4,100 

4,890 

6,450 

3,250 

546 

171 

50

6,450

June

2,050 

2,200 

2,560 

2,520 

2,630

3,110 

3,150 

3,250 

3,110 

3,150

2,990 

2,580 

2,260 

2,160 

1,920

1,760 

1,590 

1,380 

1,280 

1,040

870 

793 

786 

800 

821

814 

800 

737 

652 

594

July

546 

510 

486 

469 

480

447 

410 

370 

348 

334

326 

322 

310 

298 

282

271 

260 

245 

223 

206

193 

174 

162 

153 

145

140 

,132 

125 

122 

118 

109

Aug.

145 

171 

132 

116 

106

100 

96 

93 

87 

85

83 

82 

80 

78 

73

70 

67 

65 

62 

60

57 

57 

57 

62 

61

60 

58 

58 

57 

54 

53

Minimum Mean

40 50.9 

55 62.2 

54 113

40 913

89 139 

132 358 

474 1,057 

600 2,384 

2,280 3,852 

594 1,812 

109 281 

53 80.2 

29 36.3

29 854

Sept.

50 

47 

46 

43 

43

42 

41 

40 

40 

36

36 

38 

38 

38 

38

36 

35 

34 

33 

32

31 

30 

29 

29 

29

29 

30 

31 

32 

33

Runoff In 

acre-feet

3,130 

3,700 

6,970

663,100

8,520 

19,870 

64,970 

141,800 

236,800 

107,800 

17,290 

4,930 

2,160

617,900

) 10,600 sec. -ft.; May 14 (8 a.m.) 7,810 sec

ft.; May 27 (5 a.m.) 6,440 sec.-ft.

b Stage-dlecharge relation affected by ice.
252 MERCED RIVER BASIN

Lake MoClure at Exchequer; Calif.

Location.- Indicator in powerhouse, lat. 37 0 35', long. 120°16', in SW£ sec. 13, T. 4 S., 

K. J.5 js ., 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.

Records available.- April 1926 to September 1949.

Extremes.- Maximum contents during year, 285,100 acre-feet May 28 (elevation, 708.4 feet); 

minimum, 11,900 acre-feet Sept. 28-30; minimum elevation, 514.9 feat Sept, 30.

1926-49; Maximum contents, 289,400 acre-feet June 4, 1938 (elevation, 710.0 feet); 

practically no storage at times in 1926, 1930, 1931, 1934.

Remarks.- Reservoir is formed by concrete gravity-type dam completed 1926; storage began 

in April 1926. Usable capacity, 280,900 acre-feet between elevation 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 1948 to September 1949

Dag

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28,100

28,100

28,100

28,100

28,100

28,100

28,100

28,100

28,200

28 , 200

28,300

28,300

28,300

28,400

28,500

28,600

28,700

28,700

28,800

28,800

28,900

29,000

29,000

29,000

29,000

29,100

29,200

29,200

29,200

29,200

29,300

Nov.

29,400

29,400

29,500

29,600

29,700

29,700

29,900

30,000

30,000

30,000

30,100

30,200

30,200

30,200

30,300

30,300

30,400

30,400

30,500

30,500

30,600

30,600

30,600

30,700

30,700

30,800

30,800

30,900

30,900

30,900

-

Dec.

31,000

31,100

31,100

31,100

31,300

31,400

31,500

31,600

31,700

31,800

31,800

32,000

32,200

32,300

32,500

32,800

3 2', 800

33,100

33,300

33 t 400

33,500

33,600

33,800

33,900

34,100

34,200

35,000

35,900

36,200

36,400

38,700

Jan.

37,000

37,300

37,500

37,600

37,900

38,100

38,400

38,800

38,800

38,900

39,000

39,200

39,300

39,500

39,700

39,800

40,000

40,100

40,400

40,800

41,400

41,800

42,400

42,600

42,900

43,200

43,400

43,800

44,000

44,200

44,500

Feb.

44,800

45,000

45,300

45,600

46,000

46,600

47,800

48,500

48,900

49,400

50,600

51,800

52,600

53,100

53,600

54,100

54,600

55,200

56,000

56,800

57,700

58,400

59,300

60,300

61,500

62,700

64,000

65,000

-

-

-

Mar.

S5,800

87,000

76,500

86,200

89,900

91,200

91,800

98,300

92, §00

93,900

95,400

99,100

101,100

10^,200

103,100

103,900

104,600

105,200

106,600

108,200

109,100

109,700

110,800

111,600

112,400

112,800

113,300

114,000

114,500

114,800

115,100

Apr.

115,100

115,100

115,800

H5,400

115,800

116.2QO

115,800

115,200

114,400

114,000

114,400

115,200

116,200

117,500

119,400

121,200

123,600

125,900

127,900

130,300

133,700

138,800

144,800

150,400

156,600

160,900

165,000

169,100

172,600

175,900

May

179,300

184,100

188,300

191,400

194,100

197,500

201,000

204,600

206,400

E07.7OO

209,900

214,500

219,800

328,300

232,900

237,200

242,500

247,000

250,000

252,200

253,800

256,000

259,800

265,300

271,800

278,100

284,000

285,100

284,500

283,500

283,500

June

883,200

283,300

283,700

283,700

283,700

283,700

883,700

283,700

283,700

283,700

283,700

283,500

283,200

283,500

283,500

283,200

282,400

281,300

280,000

278,300

276,300

274,200

271,600

269,500

267,400

365,300

263,500

261,200

259,000

256,800

-

July

254,200

251,500

248,800

246,100

243,400

240,800

237,900

235,000

232,200

229,500

228,300

225,300

222,100

218,900

215,400

212,100

208,600

203,400

200,000

196,600

193,100

189,500

186,300

182,900

179,300

175,900

172,400

168,800

165,100

161,800

158,800

Aug.

155,500,

152,300

149,400

146,000

142,700

139,500

136,300

133,200

130,000

127,000

123,900

121,000

118,100

115,400

112,600

109,700

106,700

104,000

101,200

98,400

95,800

92,800

90,100

87,300

84,400

81,500

78,700

76,100

73,400

.70,400

67,500

Sept.

64,500

61,600

58,700

55,900

53,100

50,200

47,500

44,800

42,000

39,300

36,600

33,900

31,000

28,100

25,500

22,300

19,000

15,900

14,100

12,400

12,400

12,300

12,200

12,200

12,100

12,100

12,000

11,900

11,900

U.900

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31. .................

Calendar year 1948....

Mar. 31. .................

Sept. 30. .................

Water year 1948-49....

Elevation 

(feet)t

549 9

557,6

-

514.9

-

Contents 

(aere-feet)

36,700

-

44 500

11,900

-

Change In contents 

during month 

(acre-feet)

+5,800

. -(-13,700

-55,600

-16,200

t Elevation at 12 p.
MERCED RIVER BASIN

Merced River at Exchequer, Calif.

Location.- Long distance water-stage transmitter, lat, 3?°35 I , long; 120°17'» Oh line b6- 

 tween sees. 14 and 23, T. 43., R. 15 £., at Exchequer, 0.5 mile doWnStreftm from Lake

McClure, 0.7 mile downstream from Cotton Creek, and 5 miles northeast of'tterced 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 1949. November 1915 to October 1922 at site

1 mile upstream. 

Average discharge.- 33 years (1916-49), 1,228 seeond-feet; affected by Storage in Lake

Mcciure since Apr. 20, 1926. 

Extremes.- Maximum discharge during year, 4,910 second-feet May §8 (gage height, 7.41 feet);

minimum, 19 second-feet Mar. 14.

1915-49: Maximum discharge observed, about 22,000 Beeend-feet Jan. 17, 1916 (gage

height, 20.0 feet, site and datum then in use), from rating curve extended above 9,000

second-feet; minimum, 5 second-feet Jan. 5, 1935>

Remarks.- Records excellent Mar. 6 t« Sept. 80, good for remainder of year. No large di- 

"version above station. Plow regulated ty Exchequer power plant and Lake McClure beginning in April 1926 (see preceding page). 

Cooperation.- Water-stage recorder graph, furnished by Merced Irrigation District, obtained

in connection with a Federal Power Commission project.

Rating table, water year 1948-49 (gaga height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Oct. 12 to Mar. 5, Sept. 21-30)

0.05 32 0.8 148 3.0 975 5.5 S.8BO 

.1 36 1.1 217 3.5 1,270 6.0 5,520 

.2 47 1.5 327 4.0 1,610 6.7 4,070 

.3 61 2.0 498 4.5 1,990 7.4 4,SOO 

.5 93 2.5 716 5.0 2,400

Discharge, in second-feet, water year October 1948 to September* 1949

Day

1 

2 

3 

4 

S

6 

7 

8 

9 

10

11 

IZ 

13 

14 

15

16 

17 

18 

19 

ZO

Zl 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

64 

52 

42 

40 

38

35 

34 

34 

34 

34

34 

33 

33 

33 

33

33 

33 

33 

33 

33

33 

33 

33 

34 

34

34 

34 

34 

34 

34 

34

Nov.

35 

36 

37 

42 

42

42 

42 

42 

42 

43

43 

43 

43 

43 

43

43 

43 

43 

43 

43

43 

43 

43 

43 

43

44 

44 

44 

44

44

Dec.

44 

44 

44 

44 

44

44 

44 

44 

44 

44

44 

44 

44 

44

44

45 

46 

42 

45 

45

44 

50 

44

44 

43

44 

45 

44 

42 

42 

42

Jan.

42 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41

41

41 

41 

41 

40 

40 

38

Feb.

38 

38 

41

41 

41

40 

40 

38 

38 

38

40 

40 

40 

40 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38

40 

40 

40

Month

Goto 

Hove 

Deoe

Oa

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

mber. ...................................

lender year 194( 

sry

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

Mar.

38 

38 

50 

73 

63

486 

5E9 

529 

529 

525

532 

541 

539 

537 

539

535 

536 

534 

534 

543

542 

534 

535 

537 

535

535 

540 

546 

558 

558 

578

Apr.

607 

606 

608 

609 

593

940 

1,080 

1,260 

1,340 

1,340

1,540 

1,370 

1,460 

1,550 

1,570

1,580 

1,570 

1,490 

1,460 

1,450

1,490 

1,570 

1,600 

1,640 

1,690

1,730 

1,780 

1,810 

1,850 

1,850

Secondfoot-days

1,109 

1,268 

1,367

331,277

1,267 

1,091 

14,228 

40,843 

64,590 

69,370 

57,740 

46,510 

27,001

326,384

May

1,860 

1,850 

1,370 

1,920 

1,950

1,930 

1,970 

E,010 

2,010 

2,010

2,010 

2,030 2,030- 

1,990 

1,890

1,740 

1,680 

1,620 

1,550 

1,550

1,550 

1,550 

1,550 

1,580 

1,630

1,720 

2,220 

4,760 

4,370 

3,590 

2,600

Maximum

64 

44 

50

6,050

42 

41 

578 

1,850 

4,760 

3,380 

1,970 

1,750 

1,460

4,760

June

2,280 

g,l20 

2,410 

2,670 

2,640

2,970 

3,380 

3,090 

3,150 

3,210

3,240 

2,900 

2,290 

2,180 

2,170

2,080 

2,020 

1,990 

1,990 

1,970

1;950 

1,950 

1,950 

1,920 

1,860

1,840 

1,830 

1,800 

1,770 

1,750

July

1,780 

1,810 

1)820 

1,820 

1,800

1,810 

1,780 

1,770 

1,770 

1,790

1,830 

1,850 

1,860 

1,890 

1,930

1,950 

1,970 

1,930 

1,920 

1,930

1,970 

1,970 

1,930 

1,880 

1,870

1,870 

1,880 

1,890 

1,880 

1,820 

1,770

Aug.

1,750 

1,740 

1,740 

1,740 

1,720

1,700 

1,680 

1,640 

1,600 

1,570

1,540 

1,630 

1,490 

1,440 

1,410

1,410 

1,400 

1,390 

1,370 

1,570

1,370 

1,380 

1,380 

1,390 

1,390

1,390 

1,390' 1,390 

1,390 

1..400 

1,410

Minimum . Mean

33 35.8 

35 4Z.3 

42 44.1

32 905

38 40.9 

38 39.0 

38 459 

593 1,'361 

1,550 2,084 

1,750 2,312 

1,770 1,663 

1,370 1,500 

59 900

33 ' 894

sept.

1,430 

1,390 

1,360 

1,360 

1,350

' 1,320 

1,310 

1,320 

1,310 

1,290

1,300 

1,330 

1,350 

1,360 

1,440

1,460 

1,460 

1,460 

882 

861

97 

59 

62 

65 

65

62 

62 

62 

62 

62

Runoff In 

acre-feet

2,200 

2,520 

2,710

657,000

" 2,510 

2,160 

28,220 

81,010 

128,100 

157,600 

114,500 

92,250 

53,560

647,300
254 MERCED RIVER BASIN 

Merced River near Stevinson, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 120°56', in sec. 36, T. 6 S., R. 9 E., 

5 miles upstream from mouth and 6 miles northwest o'f Stevinson. Datum of gage is 56.09 

feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 1,374 square miles.

Records available.- October 1940 to September 1949.

Extremes. - Maximum discharge during'year, 2,480 second-feet May 30 (gage height, 9.35 feet); 

minimum, 111 second-feet July 8.

1944-49: Maximum discharge, 4,960 second-feet May 10, 1945 (gage height, 13.15 feet); 

minimum, 68 second-feet Mar. 8, 1948.

Remarks.- Records good, Practically entire flow is diverted above station during irrigation 

season; some return flow enters above. Plow regulated by Lake McClure (see p. 252).

Cooperation.- Pour discharge measurements furnished by Bureau of Reclamation and eight by 

state or California.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

236 

213 

205 

205 

190

190 

199 

193 

172 

166

177 

190 

184 

184 

186

175 

164 

152 

143 

138

136 

136 

132 

1S1 

129

134 

133 

134 

133 

133 

132

Nov.

132 

129 

ISO 

128 

128

126

126 

127 

128 

126

131 

129 

127 

132 

134

130 

127 

129 

135 

131

135 

1S7 

136 

134 

137

136 

135 

138 

143 

141

Dec.

140 

138 

143 

144 

151

152 

152 

151 

148 

147

145 

146 

146 

147 

148

150 

154 

154 

155 

153

148 

146 

146 

145 

147

151 

153 

158 

159 

157 

155

Jan.

154 

153 

154 

156 

153

153 

151 

149 

148 

151

151 

149 

149 

148 

148

147 

148 

148 

148 

148

151 

153 

158 

165 

167

\L69

169 

165 

161 

157 

156

Feb.

153

153 

152 

153 

153

152 

154 

156 

196 

198

182 

174 

169 

176 

175

168 

164 

158 

157 

153

153 

151 

151 

149 

149

152 

154 

160

Month

Oo to 

NOve 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Ma v

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar.

158 

162 

169 

189 

590

385 

316 

498 

556 

582

592 

631 

888 

759 

679

673 

641 

637 

637 

720

924 

739 

692 

690 

741

712 

662 

658 

656 

699 

703

Apr.

706 

725

730 

701 

660

446 

317 

353 

324 

302

279 

217 

190 

184 

192

, 204 

198 

217 

206 

180

181 

168 

139 

148 

162

172 

164 

165 

154 

160

Seeondfoot-days

5,125 

3,957 

4,629

132,281

4,777 

4,515 

18,338 

8, 944 

12,576 

19,640 

4,646 

5,757 

5,274

98,178

May

168 

175 

172 

187 

164

168 

171 

198 

220 

196

167 

167 

168 

187 

230

250 

262 

251 

292 

364

379 

370 

388 

379 

329

279 

244 

231 

1,280 

2,420 

2,120

Maximum

236 

143 

159

4,200

169 

198 

924 

730 

2,420 

1,470 

196 

223 

208

2,420

June

1,470 

1,040 

SOS 

710 

902

935 

930 

1,360 

1,330 

1,250

1,210 

1,260 

1,140 

822 

504

453 

388 

338 

349 

353

'292 

258 

222

196 

196

199 

198 

182 

171 

174

July

182 

184 

193 

196 

187

162 

148 

135 

136 

148

160 

152 

144 

132

127

128 

135 

136 

157 

151

144

145 

131 

127 

139

130 

128 

123 

143 

162 

181

Minimum

129 

126 

138

78

147 

149 

158 

139 

164 

171 

123 

148 

138

123

Aug.

178 

158 

148 

160 

171

184 

192 

200 

181 

180

199 

193 

206 

212 

223

211 

202 

194 

174 

160

184 

199 

206 

211 

199

169 

162 

176 

199 

172 

154

Mean

165 

132 

149

361

154 

161 

592 

298 

406 

655 

150 

186 

176

269

Sept.

138 

152 

154 

178 

174

172 

180

181 

206 

208

193 

190 

190 

184 

187

188 

193 

202 

193 

193

187

169 

164 

169 

162

162 

161 

152 

147 

145

Runoff in 

ao re-feet

10,170 

7,850 

9,180

262,400

9,480 

8,960 

36,370 

17,740 

24,940 

' 38,960 

9,220 

11,420 

10,460

194,800
MERCED RIVER BASIN 255

Tenaya Creek near Yosemite,.Calif.

Location.- Water-stage recorder, lat. 37°44 I 33", long. 119°33 I 25", in Y«semite National 

Fane, 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 1949.

Average discharge.- 36 years (1913-49), 103 second-feet.

Extremes.- Maximum discharge during year, 867 second-feet May 14 (gage height, 4.18 feet); 

.minimum daily, 1.0 second-foot Nov. 10-21, Dec. 1, 2, 9-12.

'1904-9, 1912-49: Maximum discharge, 5,550 second-feet Dec. 11, 1937 (gage height, 

10.0 feet), from rating curve extended above 2,000 second-feet on basis of velocityarea studies; minimum, 0.6 second-foot Dec. 18-22, 1929, Dec. 2, 6-15, 1940.

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

are fair. No storage or diversion.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

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.

1.5 

1.5 

1.5

1.5 

1.5

1. 

1. 

1.

1. 

1. 

1.

1.

1. 

1. 

1. 

1. 

1.

1.4 

1.4 

1.3 

1.3 

1.3

1.2 

l.Z 

1.2 

1.2 

1.3 

1.3

Ooto 

Hove 

Dece

Ca

Janui 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augui 

Sept

Wa

Nov.

1.3 

1.3 

l.Z

l.Z 

1.2

1.1

1.1 

1.0

1.0 

1.0 

1.0

1.0

1.0

1.0 

1.0 

1.0 

1.0

1.0

1.1 1.1 

1.1 1.1

1.1 1.1 1.1 

1.1 1.1

Dec.

1.0 

1.0 1.1

1.1

1.1

1.1

1.0 

1.0

1.0 

1.0

1.1

1.1

1.1

1.2

1.2 

1.2 

1.6

2.2 

Z.4 

Z.8 

3.0 

3.0

3.0 

3.0 

Z.8 

2.8 

3.0 

3.2

Jan.

3.3

3.7 

3.Y

5.7 

4.4

4.8 

4.8 

5.2

4.4 

4.4 

4,4

4.0

4.0 

4.0 

4.0 

4.8 

4.0

4.0 

4.4 

4.4 

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0 

4.4

Month

Feb.

4.4 

4.8 

5.5 

5.5 

5.9

5.9 

6.3 

5.9 

5.9 

6.3

6.6 

6.6 

6.6 

6.6 

6.6

7.0 

7.6 

8.2 

11 

12

12 

12 

13 

14 

14

15 

16 

16

lendar year 1943

ter year 1948-49 .......................

Peak discharge (base, 490 sec. -ft.).- Apr.

Mar.

16 

18 

19

18 

19

20 

20 

19 

18 

20

Zl

aZ2 

a23 

aZ5 

a26

27 

27 

30 

34 

34

33 

34 

31 

31 

30

30 

40 

48 

42 

37 

36

Apr.

33 

36 

37 

47 

66

81 

81

7Z 

94 

1ZZ

153 

178 

Z04 

Z40 

226

240 

ZSO 

264 

311 

387

5Z5 

609 

577 

577 

505

453 

450 

426 

383 

376

Secondfoot-days

42.7 

32.6 

53.4

36,359.2

129.3 

247,. 2 

848 

8,013 

1Z.965 

5,166 

386.5 

63.8 

42.2

27,989.7

22 (7 p.m.)

May

434 

469 

410 

364 

380

391 

430 

391 

308 

304

4Z2 

521 

589 

653 

453

485 

457 

364 

319 

246

Z40 

304 

407 

493 

545

577 

553 

461 

418 

323 

Z54

Maximum

1.5 

1.3 

3.2

861

5.2

164a

609 

653 

300 

40 

3.0 

1.7

653

June

ZZ6 

240 

243 

Z50 

Z74

300 

Z96 

296 

296 

295

268 

Z36 

Z17 

200 

181

16Z 

147 

139 

127 

109

94 

85 

81 

76 

70

61 

57 

51 

48 

43

Minimum

July

l.Z 

1.0 

1.0

1.0

3.3 

4.4 

16 

33 

240 

43 

3.0 

1.5 

1.2

1.0

40 

36 

33 

Z7 

24

Z2 

20 

18 

15 

14

12 

11 

11 

10 

8.8

8.Z 

8.Z 

7.6 

7.0 

6.3

5.9 

5.5 

5.2 

4.8 

4.4

4.4 

4.0 

3.7 

3.3 

3.2 

3.0

Aug.

3.0 

3.0 

2.7 

2.6 

2.6

2.6 

2.4 

2.4 

Z.4 

2.4

Z.4 

2.2 

Z.I 

2.0 

2.0

2.0 

1.8 

1.7 

1.6 

1.6

1.8 

1.8 

dl.7 

dl.7

dl.7

dl.7 

dl.6 

dl.6 

dl.6 

dl.6 

dl.5

Mean

1.38 

1.09 

1.7Z

99 3

4.17 

8.83 

27.4 

267 

418 

172 

12.5 

2.06 

1.41

76.7

Sept.

dl.5 

dl.5 

dl.5

dl.5 

dl.6

1.7 

1.6 

1.6 

1.6 

1.6

1.5 

1.5 

1.6 

1.5 

1.5

1.5 

1.4 

1.3 

1.3 

1.3

1.3 

1.2 

dl.2 

dl.2 

dl.2

dl.2 

dl.2 

dl.2 

dl.2 

dl.2

Runoff In 

acre-feet

85 

65 

106

72,120

256 

490 

1,680 

15,890 

25,720 

10,250 

767 

1.27 

84

55,520

770 sec. -ft. ; May 1 (8 p.m.) 601 sec. -ft. j

May 14 (2 a.m.) 867 sec.-ft. ; May 26 (9:30 p.m.) 757 eec.-ft.

a No gage-height record; discharge Interpolated.

d Doubtful gage-height record; discharge computed on basis of records for stations on nearby 

streams.
256 MERGED RIVER BASIN

Merced River Slough near Newman, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 120°58', in NE£ sec. 3, T. 7 S,, R. 

9 K., 0.1 mile downstream from bridge, 0.2 mile downstream from head of slough between 

Merced and San Joaquin Rivers, and 4.5 miles northeast of Newman. Datum of gage is 

54.44 feet above mean sea level (levels by Bureau of Reclamation).

Records.available.- October 1941 to September 1949.

Extremes.- Maximum discharge during year, 209 second-feet May 30 (gage height, 5.61 feet); 

no 1'iow for several months.

1944-49: Maximum discharge, 990 second-feet May 10, 12, 1945 (gage height, 7.50 

feet); no flow for several months.

Remarks.- Records good. Slough flows from Merced River to San Joaquin River, bypassing 

gaging station on San Joaquin River near Newman.

Discharge, In second-feet, water year October 1948 to September 1949

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. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Apr!

Mflv

June 

July 

Augu 

Sept

Wa

lender year 1948

at. .....................................

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

2.8

1.5 

0

0 

0 

0 

0 

0

9.4 

.7 

.1 

0 

.2

.4 

0 

0 

0 

0 

0

Apr.

0 

.1

,z

.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

Secondfoot -days

0 

0 

0

7,579.3

0 

0 

15.1 

.6 

405 

37Q.3 

0 

0 

0

791.0

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 

40 

198 

167

Maximum

0 

0 

0

620

0 

0 

9.4 

.2 

198 

75 

0 

0 

0

198

June

75 

24 

3.9 

.3 

5.2

8.8 

6.3 

47 

50 

40

35 

39 

31 

4.6 

.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

0

July

Minimum

0 

0 

0

0

0- 

0 

0' 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0

0 

0

20.7

0 

0 

.49 

.02 

13.1 

12.3 

0 

0 

0

2.16

Sept.

Runoff In 

acre-feet

0 

0 

0

15,040

0 

0 

30 

1.2 

803 

734 

0 

0 

0

1,570
ORESTIMBA CREEK BASIN 257

Orestimba Creek near Neman, Calif.

Location.- Water-stage recorder, lat. 37°19i09", long. 121°07'14", in NW£ sec. 20, T. 7 

ST7TT78 E., at highway bridge 3 miles downstream from Oso Creek and 5 miles west of 

Newman. Datum of gage is 191.86 feet above mean sea level (unadjusted).

Drainage area.- 129 square miles.

Records available.- January 1932 to September 1949.

Average discharge.- 17 years, IB.5 second-feet.

Extremes.- Maximum discharge during year, 335 second-feet Mar. 12 (gage heignt, 2.19 

reet;; no flow during several months.

1932-49: 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.- Three discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in seoond-feet)

0.1 0 07 8.0 1.3 59 

.2 .2 8 13 1.4 75 

.3 .5 9 X9 1.5 94 

.4 1.0 10 26 1.6 117 

.5 2.0 11 35 1.7 144 

.6 4.0 12 46 1.9 208

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. ' Nov. Dec.

Month

Octjo 

Move

Deoe

Ca

Janu. 

Pebr 

Marc 

Apri

Mtev

June 

July 

 Augu 

Sept

Wa

Jan. Feb.

lendar year 1948 

8try

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1.7 

196 

80 

30 

14

7.6 

5.2 

3.0 

2.4 

3.6

3.8 

2.8 

2.6 

3.6 

2.0

1.1 

.8 

.6 

.3 

0 

0

Apr.

Secondfoot-days

0 

0 

0

0

0 

0 

361.1 

0 

0 

0 

0 

0 

0

361.1

May

Maximum

0

0

0

0

0

0 

196 

0 

0 

0 

0 

0 

0

196

June

Minimum

July Aug. Sept.

 Hunoff In 

""" acre-feet

00 0 

00 0 

00 0

00 0

00 0 

00 0 

0 11.6 716 

00 0 

00 0 

00 0 

00 0 

00 0 

00 0

0 .98 716
258 TUOLUMNE RIVER BASIN

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°57', long. 119°47 ! , In NW£ sec. 16, T. 1 N., R. 

20 *;., at O'Shaughnessy Dam on Tuolumne River at Hetch Hetchy In Yosemlte 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 ])949 (1923-30., gage heights only).

Extremes.- Maximum contents during year, 347,000 acre-feet June 11, 12 (elevation, 3,799.2 

reet); minimum, 39,800 acre-feet Apr. 5 (elevation, 3,580.3 feet).

1923-49: Maximum contents, 354,100 acre-feet June 1, 1943 (elevation, 3,802.8 feet); 

no contents at times In 1929, 1930, 1931.

Remarks.- Reservoir Is formed by concrete gravity-type dam, completed to crest elevation 

37725.5 feet In 1923 and raised, to 3,812.0 feet In 1937; storage .began Apr. 6, 1923. 

Usable.capacity, 340,400 acre-feet between elevations, 3,512.0 feet (somewhat above 

bottom outlet) and 3,795.8 feet (spillway crest elevation) above mean sea level. Water 

flows down Tuolumne River 15 miles to Early intake, where part is diverted through 

Hetch Hetchy aqueduct to Moccasin Creek power plant. At Moccasin Creek diversion dam, 

water reenters Hetch Hetchy aqueduct and flows into Crystal Springs Reservoir, which 

supplies city of San Francisco. Surplus water Is spilled Into Don Pedro Reservoir at 

Red Mountain Bar. Hetch Hetchy Reservoir Is main storage unit of Hetch Hetchy watersupply system for San Francisco. Records show contents at 12 p.m., all of which Is 

available for release.

Contents at 12 p.m., In acre-feet, water year October 1948 to September 1949

Day

1

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22

23

24

25

26

27

28

S3 

30

31

Oct.

260,300

358,900 

257,700 

256,300 

254,900

253,500 

251,900 

250,700 

249,300 

247,800

246 , 600 

245,200 

244,000 

242,500 

241,100

239,800

238,400 

236,900 

235,500 

234,200

232,000 

229,000

226,300

223,700

222,400

220,900

219,200

217,900

216,500 

215,000

213,600

Nov.

212,400

211,100 

210,200 

208,900 

207,600

206,200 

204,900 

203,600 

202,400 

200,800

199,200 

197,800 

196,500 

195,100 

193,700

192,400

191,000 

189,700 

188,400 

187,000

185,600 

184,300

182,900

181,700

180,300

179,000

177,600

176,400

175,000 

173,500

~

Dec.

172,200

170,900 

169,700 

168,300 

167,200

165,800 

164,500 

163,200 

161,800 

160,500

S 59, 400 

gE8,100 

356,800 

155,600 

154,300

153,100

151,800 

150,400 

149,300 

148,000

146,800 

145,400

144,200

142,800

141,600

140,700

139,300

137,800

136,600 

135,400

134,200

Jan.

133,100

131,900 

130,800 

129,500 

128,300

127,100 

125,800 

124,500 

123,100 

121,900

120,500 

119,300 

113,100 

116,900 

115,600

114,300

113,000 

111,700 

110,700 

109,400

108,200 

107,000

105,800

104,500

103,400

102,000

100,900

99,700

98,500 

97,200

96,000

Feb.

94,700

93,400 

92,300 

91,200 

90,000

88,800 

87,600 

86,400 

35,300 

84,200

83,200 

82,200 

80,900 

79,700 

78,500

77,400

76,200 

75,300 

74,300 

73,300

72,400 

71,500

70,500

69,500

68 , 400

67 , 500

66,500

65 , 600

_

-

liar.

64,700

64,000 

63,400 

62,6pO 

61,900

61,000 

60,100 

59,200 

58,300 

57,400

56,600 

55,900 

55,000 

54,200 

53,400

52,700

51,900 

51,300 

50,800 

50,200

49,300 

48,800

48,100

47,200

46,500

45,700

45,200

44,800

44,100

43,300

42,500

Apr.

41,600

40,900 

40,300 

539,900 

539,800

539,900 

539,900 

540,000 

540,400 

541,100

g42,700 

B44.400 

46,400 

48,600 

51,100

53,800

56,600 

59,400 

82,400 

65,900

70,300 

75,600

81,800

87,900

94,400

99,500

104,600

109,700,

114,200 

18,100

-

Hay

122,700

128,300 

133,500 

137,300 

140,900

144,700 

149,600 

154,300 

158,000 

160,600

164,900 

171,900 

179,700 

188,700 

194,200

199,000

205,100 

209,400 

213,100 

216,100

217,600 

220,700

226,500

234,500

244,000

254,900

265,400

274,600

281,300 

285,400

288,200

June

290,200

292,900 

296,300 

S 00, 100 

305,700

312,600 

319,800 

327,400 

335,400 

343,700

347,000 

347,000 

346,800 

346,600 

346,600

346,300

345,700 

345,100 

344,300 

343,900

343,700 

343,500

343,500

343,500

343,500

343,500

343,400

343,200

343,000 

342,800

-

July

342,600

342,400 

342,200 

342,000 

341,800

341,400. 

340,300 

340,100 

339,500 

3.38,700

337,900 

337,200 

036,400 

335,600 

334,900

333,900

333,100 

332,000 

330,800 

329,900

328,700 

327,600

326,400

325,300

324,200

322,800

321,900

320,500

319,400 

317,900

316,800

Au>s.

315,600

314,500 

313,400 

312,400 

311,500

310,600 

 309,600 

308,500 

307,600 

306,500

305,200 

303,800 

302,500 

301,100 

300,000

298,500

297,000 

295,900 

294,400 

292,900

291,500 

290,200

288,700

287,400

286,000

284,500

283,100

281,600

280,200 

278,900,

277,600

Sept.

276,200

274,800 

273,300 

272,100 

270,700

269,300 

267,800 

266,400 

265,000 

263,600

262,200 

260,600 

259,200 

258,000 

256,600

255,200

253,800 

252,300 

251,100 

249,500

248,100 

246,800

245,400

243,800

242,300

240,900

239,800

238,200

236,900 

235, 400/

g Computed from graph based on gage readings.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31. .................

Calendar year 1948....

Sept. 30. .................

Water year 1948-49.,. .

Elevation 

(feet)t

3,671.1

.

3,737,9

-

Contents 

(acre-feet)

134,200

-

235,400

-

Change in contents 

during month 

(acre-feet)

-39,300

 1-64,400

-42,200

-26,300

t Elevation at 12 p.m.
TUOLUMNE RIVER BlftSIN 259

Tuolumne River near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°56 ! , long. 119°48', in SE£ sec. 17, T. IN., R. 

 y'O K., in Yosemite National Park, 1 mile downstream from O'Shaughnessy Dam at Hetch

Hetchy and 2.5 miles downstream from Palls Creek. Altitude of gage, about 3,450 feet

(from topographic map).

Drainage area.- 462 square miles.

Records available.- December 1914 to September 1949.

Average discharge.- 34 years (1915-49), 972 second-feet.

Extremes.- Maximum discharge during year, 4,240 second-feet June 12 (gage height, 10.43 

reet;; minimum, 545 second-feet A^ug. 4.

1915-49: 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 period of no gage-height record, which are 

good. Flow regulated by Hetch Hetchy Reservoir beginning in April 1923 (see preceding 

no diversion above station.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge. In second-feet)

5.3 540 7.0 1,090 9.0 2,440 

5.6 615 7.5 1,330 9.5 £,930 

6.0 730 8.0 1,640 10. 0 3,570 

6.5 895 8.5 2,010 10.5 4,350

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4s 

a

7 

A 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

£6 

27 

26 

29 

30 

31

Oct.

7l5 

715 

730 

736 

736

733 

730 

730 

727 

724

724 

721 

718 

715 

730

733 

730 

730 

730 

733

1,190 

1,500 

1,500 

1,310 

745

742 

739 

736 

733 

730 

727

Nov.

724 

724 

733 

736 

733

733 

730 

727 

724 

736

742 

739 

736 

733 

730

727 

730 

727 

736 

736

733 

730 

724 

721 

715

724 

730 

724 

718 

730

Dec.

730 

730 

727 

721 

736

742 

739 

736 

730 

733

736 

730 

727 

724 

715

727 

730 

727 

718 

71S

730 

730 

727 

718 

a710

a725 

a720 

3715 

a730 

8720 

a715

Jan.

3710 

3705 

3700 

3695 

3710

8740 

a740 

8735 

3735 

3735

a730 

3735 

739 

736 

733

730 

727 

724 

' 724 

721

733 

742 

736 

733 

730

730 

724 

721 

718 

733 

742

' Feb.

739

733 

730 

730 

727

724 

721 

718 

727 

733

730 

727 

724 

733 

739

736 

733 

733 

730 

727

724 

721 

733 

739 

736

733 

730 

727

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1943

uary . «... .*.*.*.....

ter year 1948-49 .......................

Mar.

724 

724 

730 

727 

718

712 

709 

703 

718 

727

724 

721 

715 

712 

706

703 

700 

697 

694

703

718 

718 

715 

709

703

700 

694 

691 

715 

730 

724

Apr.

721 

715 

712 

709 

706

706 

709 

706 

709 

712

718 

730 

736 

748 

730

721 

730 

727 

727 

736

751 

766 

784 

733 

727

733 

745 

757 

769 

778

Secondfoot-daya

25,192 

21,885 

22,513

288,746.5

22,546 

20,437 

22,084 

21,951 23,831' 

49,693 

22,198 

21,702 

22,254

296,286

May

784 

754 

736 

745 

751

760 

766 

760 

760 

775

790 

808 

775 

766 

787

763 

754 

766 

778 

784

790 

766 

748 

766 

784

800 

763 

748 

760 

769 

775

Maximum

1,500 

742 

742

4,890

742 

739 

730 

784 

808 

4,060 

739 

757 

760

4,060

June

775 

778 

781 

787 

760

748 

760 

766 

775 

947

3,070 

4^060 

3,850 

3,820 

3,570

3,250 

2,910 

2,500 

1,990 

1,520

1,300 

1,230 

1,220 

1,180 

1,190

1,230 

1,170 

1,040 

912 

804

July

730 

686 

709 

715 

703

694 

703 

724 

718 

724

721 

721 

718 

718 

718

718 

718 

715 

715 715'

712 

712 

712 

709 

709

709 

706 

730 

739 

739 

736

Aug.

736 

670 

630 

588 

560

560 

560. 

560 

560 

600

739 

739 

736 

736 

745

751 

748 

748 

757 

751

751 

748 

745 

751 

754

751 

751 

748 

745 

742 

742

Minimum Mean

715 813 

715 730 

710 726

9.6 789

695 727 

718 730 

691 712 

706 732 

736 769 

748 1,656 

688 716 

560 700 

727 742

560 812

Sept.

739 

739 

736 

733 

733

730 

727 

730 

742

736

733 

730 

730 

742 

751

748 

745 

742 

742 

745

760 

757 

757 

754

751

748 

745 

742 

739 

748

Runoff In 

acre-feet

49/970 

43,410 

44,650

572,700

44,720 

40,540 

43,800 

43,540 

47,270 

98,560 

44,030 

43,050 

44,140

587,700

a No gage-height record; discharge computed on basis of unpublished records for station 

Early Intake, Calif.
260 TUOLUMNE RIVER BASIN

Don Pedro Reservoir near La Orange, Calif.

Location.- Water-stage recorder, lat. 37°42'48", long. 120°24'14" > in SW£ sec. 35, T. 

2~s77~R. 14 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 1934 to September 1949 (19S4-30, gage heights only).

Extremes.- Maximum contents during-year, 290,200 acre-feet June 17 

feet); minimum, 35,900 a-cre-feet Oct. 21 (elevation, 483.4 feet 

1924-49: Maximum contents, 292,100 acre-feet June 13, 1937

18 (elevation, 605.5 

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; 

stofrage began Nov. 14, 19S2. Usable capacity, 260,000 acre-feet between elevations 476 

feet (mutually agreed-upon minimum) and 605.55 feet (top of drum-type spillway gates) 

above mean sea level. Water passes through power plant at dam and down Tuolumne River 

to La Grange Dam, 4 miles downstream, where it is diverted into Turlock and Modesto 

Canals for irrigation. This reservoir is operated jointly by Turlock >and Modesto 

Irrigation Districts. Records show total contents at 12 p.m., of which 30,000 acrefeet (mutually agpeed-upon minimum) is not available for release.

Cooperation.- Water-stage recorder graph furnished by Turlock and Modesto Irrigation Districts.

Day

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

26 

27

28

29

30

31

Contents at 12 p.m., in acre-feet, water year October 1948 to September 1949

Oct.

46,800

45,800

45,200

43,800

42,600

41,400

40,500

39,500

39)000

38,600

38,000

37,600

37,300

37,100

37,000

37,000

37,300

36,900

36,600

36,200

35,900

37,000

38,900

41.000

41,900

41,900 

41,800

41,500

41,300

41,300

41,900

Nor.

41,200

41,100

41,300

41,300

41,100

41,100

41,700

41,300

40,900

40,700

40,900

40,900

41,100

41,500

41,300

41,100

40,900

40,700

40,600'

40,800

41,300

41,100

40,900

40,600

40,900

40,600 

40,700

41,300

40,900

40,600

-

Deo.

40,200

39,900

39,800

40,200

40,600

40,200

39,700

39,200

39,100

38,700

39,000

39,500

39,100

39,100

38,900

38,400

38,000

38,200

38,600

38,000

37,300

36,900

36,600

36,400

36,800

37,200 

38,000

38,100

37,800

37,500

37,300

Jan.

38,400

39,300

39,600

39,900

40,200

40,600

41,100

41,900

42,700

42,800

43,100

43,300

43,500

44,000

44,700

45,500)

45J.700

46,200

46,500

47,500

48,, 100

49,200

50,400

51,100

51,700

52,600 

53,400

54,100

55,000

56,000

56,600

Fab.

57,400

58,300

59,200

59,700

61,200

62,500

65,000

66,400

67,700

68,800

70,700

72,700

74,300

75,700

76,800

78,000

79,500

81,100

83,100.

85,100

86,700

88,300

90,200

92,200

94,100

96,500 

98,900

100,700

_

-

-

liar.

i 102, 400

104,500

116,600

125,700

130,200

133,500

136,000

138,200

140,300

141,500

144,600

1511,100

154,700

156,900

158,700

160,200

161,900

163,600

166,400

169,700

171,500

173,300

176,400

178,800

180,300

180,900 

181,400

181,900

182,500

183,000

183,300

Apr.

183,300

188,300

183,300

182,700

181,400

180,900

180,100

179,300

176,900

174,100

172,000

170,500

169,200

166,900

165,400

163,600

162,400

160,900

159,|700

158,900

159,700

163,100

166,900

171,500

175,900

178,500| 

180,900

182,700

183,800

184,600

-

May

185,100

1861,700

188,100

189,400

191,100

193,000

194,900

196,800

197,|900

198,200

199,800

203,800

209,400

217,100)

220,500

223,400

226,300

228,000

229,800

232,100

234,800

237,100

240,400

245,400

250,800

256,300 

261,100

265,100

267.JSOO

269,500

271,000

June

271,300

271,700

272,000

272,900

274,200

275,700

276,300

276,000

275,400

274,500

274,800

277,300

280,400

283 ,.6 00

286,700

288,900

290,200

290,200

289,300

287,400

285,100

282,800

279,800

278,200

277,300

275, 700 

274,800

273,500

272,300

270, 400

July

268,600

266,400

263,600

261,100

258,700

256,300

253,800

251,400

249,000

246,600

243,900

241,600

239,200

236,500

234,200

231,500

228,600

225,700

223,100

220, 200

217,300

214,500

211,600

308,800

J06.000

203.EOO 

200,^00

197,100

194,100

191,0.00

187,800

Aug.

185,600

183,000

179,800

176,900

174., 100

171,300

168,200

165,200

162,100

159,200

156,000

153,300

150,600

147,700

145,300

142,600

140,300

L38',200

135,800

133,900

132,300

130,000

127,500

125,200

122,800

120, 600 

118 400

116,600

114 300

111.800

109,600

Sept.

108,100

106,900

105,900

105,300

104,500

103,200

102,000

100,700

99,800

98,600

97,900

96,800

95,700

94,500

92,700

91,500

90,200

88,800

87,500

86,100

84,500

82,600

80,800

79,300

77,900

76,200 

74,600

72,900

71,700

70,400

Monthly elevation ana contents, water year October 1948 to September 1949

Date

Dec. 31..................

Calendar year 1948. . . .

Sept.30. .................

Water year 1948-49....

Elevation 

(feet)t

490.0

488.6

485.1

.

599 4

514.6

Contents 

(acre-feet)

48,000

41,900

40,600

37,300

100,700

183,300

184,600

270,400

187,800

70,400

Change in contents 

during month 

(acre-feet)

_

-6,100

-1,300

-3,300

-5,100

+19,300

+44, 100

1-82,600

+1,300

+86,400

-600

-82,600

-78,300

-39,100

+22,400

t Elevation at |12 p.m.
TUOLUMNE RIVER BASIN 361

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

Location.- Water-stage recorder, lat. 37 0 42'3S", long. 120°24'45", in NE$ sec. 3, T. 3 S., 

H. 14 E., 0.5 mile downstream from Don Pedro Dam, 3.5 miles upstream from La Grange 

Dam, and 5 miles upstream from La Grange. Altitude of gage, about 330 feet (from topographic map).

Drainage area.- 1,540 square miles.

Hecords available.- March 1915 to September 1949. August 1895 to September 1917 at La 

orange Dam, 3.5 miles downstream; records equivalent if flow of Yosemite Power Co. 

canal (abandoned in 1926) and Modesto and Turlock Canals is added to flow at La Grange 

Dam.

Average discharge,.- 54 years (1895-1949), 2,544 second-feet, using 1895-1916 records of 

comcinea now of river and canals, and including Hatch Hetchy diversion to San Francisco.

Extremes.- Maximum discharge during year, 4,740 second-feet Apr. 14, 15 (gage height, 11.53 

reet); minimum, 28 second-feet Jan. 5.

1895-1949: 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~T8,000 second-feet; maximum gage height at present site. 29.6 feet Mar. 25. 1928; minimum discharge, 0.5 second-foot on many days in Octooer and November 193i.

Remarks.- Records excellent. A small amount of water is diverted above station for irrigation, Diversion through Hetch Hetchy aqueduct to San Francisco began Oct. 19, 1934; 

for present year it amounted to an average of 94 second-feet. Flow regulated by Don 

Pedro power plant, Don Pedro Reservoir (see preceding page), Hetch Hetchy Reservoir 

(see p. 258), a'nd Lake Eleanor (see p. 865).

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, In seoond-feet)

5.1

5.2 

5.5 

5.S 

6.1 

6.3

165

187

257

340

445

525

6.5 

6.8 

7.0 

7.5 

8.0 

8.5

615

755

860

1,170

1,530

1,930

9.0

9.5

10.0

11.0

12.0

2,330

2,780

3,230

4,180

5,300

Discharge, In seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,330 

1,160 

874 

1,310 

1,320

1,240 

1,200 

1,130 

1,000 

724

982 

868 

868 

868 

842

718 

474 

891 

894 

882

896 

846 

703 

503 

873

907 

924 

971 

1,000 

862 

508

Nov.

1,100 

965 

927 

1,000 

1,010

831 

528 

1,000 

1,030 

975

756 

866 

777 

550 

934

938 

948 

965 

980 

727

521 

953 

957 

1,020 

655

904 

800 

558 

972 

1,070

Dec.

1,070 

1,060 

974 

725 

567

1,010 

1,080 

1,070 

1,020 

992

704 

484 

993 

965 

989

1,120 

1,090 

792 

532 

1,060

1,120 

1,070 

994 

884 

504

527 

836 

1,000 

1,060 

1,100 

930

Jan.

276 

311 

708 

697 

675

658 

627 

485 

343

704

727 

644 

754 

582 

471

307 

611 

589 

692 

589

598 

433 

271 

585 

583

527 

553 

501 

395 

215 

483

Feb.

484 

478 

473 

570 

335

264 

496 

481 

406 

498

473 

354 

206 

414 

439

415 

343 

352 

24S 

168

334 

261 

383 

355 

385

330 

183 

442

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Mare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

418 

435 

493 

396 

258

174 

398 

425 

526 

964

999 

746 

527 

866 

920

977 

990 

946 

943 

722

1,140 

1,210 

1,170 

1,180 

1,160

1,450 

1,410 

1,510 

1,500 

1,510 

1,510

Apr.

1,510 

1.75O 

1,660 

2,140 

2,540

2,510 

2,540 

2,580 

3,430 

4,010

4,050 

4,080 

4,140 

4,470 

4,500

4,500 

4,460 

4,480 

4,050 

3,940

3,930 

4,050 

4,050 

3,960 

4,090

4,100 

4,090 

4,090 

4,090 

4,090

Seoondfoot-days

28,568 

26,217 

28,322

614,716

16,574 

10,576 

27,873 

107,880 

86,840 

88,160 

67,270 

60,950 

43,810

593,040

May

4,070 

4,080 

3,930 

3,590 

3,390

3,240 

3,230 

3,230 

3,170 

3,220

3,230 

3,240 

3,240 

3,170 

3,160

3,200 

3,190 

3,200 

2,510 

1,950

1,750 

1,580 

1,660 

1,680 

1,650

1,960 

2,260 

2,270 

2,260 

2,270 

2,260

Maximum

1,330 

1,100 

1,120

6,940

754 

570 

1,510 

4,500 

4,080 

4,160 

2,310 

2,160 

1,840

4,500

June

2,260 

2,260 

2,260 

2,250 

2,240

2,250 

2,740 

3,180 

3,380 

3,520

3,900 

4,160 

3,770 

3,490 

3,310

3,570 

3,750 

3,670 

3,700 

3,340

3,190 

3,190 

3,190 

2,540 

2,240

2,260 

2,260 

2,090 

2,100 

2,100

Minimum

July

474 

521 

484

66

215 

168 

174 

1,510 

1,580 

2,090 

2,100 

1,440 

971

168

2,100 

2,100 

2,100 

2,100 

2,100

2,100 

2,100 

2,100 

2,110 

2,110

2,120 

2,130 

2,130 

2,130 

2,150

2,140 

2,140 

2,160 

2,190 

2,200

2,200 

2,200 

2,210 

2,220 

2,240

2,250 

2,270 

2,270 

2,310 

2,280 

2,310

Aug.

?,160 

2,100 

2,090 

2,080 

2,080

2,060 

1,930 

2,090 

2,130 

2,130

2,150 

2,150 

2,150 

2,090 

1,940

1,970 

1,990 

1,890 

1,840 

1,740

1,440 

1,950 

1,940 

1,880 

1,920

1,930 

1,790 

1,440 

1,940 

2,000 

1,960

Mean

922 

874 

914

1,680

535 

378 

899 

3,596 

2,801 

2,939 

2,170 

1,966 

1,460

1,625

Sept.

1,430 

1,380 

1,270 

971 

1,080

1,360 

1,410 

1,430 

1,400 

1,320

989 

1,400 

1,390 

1,420 

1,560

1,550 

1,420 

1,300 

1,670 

1,590

1,690 

1,740 

1,840 

1,620 

1,380

1,720 

1,740 

1,720 

1,490 

1,530

Runoff In 

acre-feet

56,660 

52,000 

56,180

1,219,000

32,870 

20,980 

55,290 

214,000 

172,200 

174,900 

'133,400 

120,900 

86,900

1,176,000

Note.- Discharge for periods May 7 to June 10, June 20 to Sept. 30 Is sura of flow In Turlock and 

Modesto Canals.

.^47108 0-51-18
262 TUQLUMNE RIVER BASIN

Tuolumne River at Modesto, Calif.

Location.- Water-stage recorder, lat. 37°S7'40", long. 120°59'20"; in SW^ sec. 33, T. 3 S.,

K. ye., 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 1949. 

March 194U to December 1946 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Extremes.- Maximum discharge during year, 3,120 second-feet Mar. 5 (gage height,-43.54 

-reet); minimumj. 204 second-feet July 13.

1943-49: 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 except those for periods of no gage-height, record or backwater, 

whlcn are poor. 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. Four discharge measurements 

furnished by Bureau of Reclamation.

Discharge, In second-feet, water year Ostober 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

844 

826 

802 

754 

757

993

775 

742 

733 

727

688 

868 

796 

739 

822

1,020 

775 

700 

766 

790

793 

799 

784 

772 

712

736 

790 

808 

822 

833 

812

Nov.

751 

875 

875 

864 

878

886 

918 

799 

872 

914

896 

868 

886 

895 

805

864 

889 

896 

910 

910

872 

772 

847 

889 

903

861 

854 

882 

784 

858

Dee.

886 

900 

861 

816 

796

742 

775 

796 

812 

844

799 

787 

724 

784 

796

805 

896 

868 

826 

745

822 

864 

854 

al,050 

al,03o

a860 

a790 

1,010 

1,170 

1,240 

al,280

Month

Octo 

Nove 

Dece

Ca

janu 

Pebr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Jan.

al,700 

a900 

a650 

a720 

a900

a900 

a880 

a870 

a820 

8670

8720 

8900 

914 

934 

840

796 

598 

724 

836 

889

830 

840 

748 

554 

751

847 

808 

787 

760 

643 

517

Feb.

619 

661 

664 

655 

658

589 

537 

748 

910 

733

715 

703 

661 

575 

667

685 

688 

676 

604 

563

454 

543 

517 

578 

655

625 

655 

476

lendar year 1948

ter year 1948-49 .......................

Mar.

625 

685 

730 

1,840 

2,360

958

631 

706 

706

812

1,190 

1,600 

2,190 

1,210 

1,130

1,230 

1,300 

1,320 

1,210 

1,270

1,350 

1,410 

1,610 

1,610 

1,860

1,930 

1,920 

1,860 

1,850 

1,800 

1,780

Apr,

1,720 

1,650 

922 

475 

307

270 

282 

293 

257 

437

718 

1,380 

1,170 

763 

1,050

1,160 

1,200 

1,170 

1,200 

778

697 

652 

667 

763 

718

854 

850 

840 

861 

954

Secondroot-days

24,578 

25,974 

27,228

296,012

25,246 

17,814 

42,683 

25,058 

13,757 

9,437 

7,969 

7,791 

7,089

234,624

May

1,040 

1,030 

1,030 

875 

694

610 

427 

374 

344 

319

326 

291 

319 

346 

443

405 

344 

364 

419 

379

332 

336 

322 

305 

305

291 

288 

288 

291 

334 

286

Maximum

1,020 

918 

1,280

4,540

1,700 

910 

2,360 

1,720 

1,040 

583 

300 

282 

253

2,360

June

298

312 

312 

279 

288

291 

273 

268

270 

262

262 

317 

583 

520 

354

302 

282 

422 

344 

478

252 

319 

295 

275 

275

284 

259 

255 

253 

253

Minimum

July

688 

751 

724

206

517 

454 

625 

257 

286 

252 

218 

232 

224

218

266 

255 

300 

291

277

273 

259 

255 

264 

262

288 

249 

218 

226 

251

255 

244 

257 

251 

257

249 

249 

247 

253 

262

255 

249 

259 

251 

255 

242

Aug.

242 

259 

247 

240 

242

242 

238 

268

251 

253

257 

253 

244 

247 

249

259 

244 

253 

259 

240

C260 

262 

257 

279 

253

232 

238 

270 

255 . 

234 

244

Mean

793 

866 

878

809

814 

636 

1,377 

835 

444 

315 

257 

251 

236

643

Sept.

236 

240 

244 

253

228

232 

224 

230 

232 

230

240 

240 

240 

238 

240

247 

234 

234 

238 

247

240 

230 

224 

226 

230

228 

234 

234 

247 

249

Runoff In 

acre-feet

48,750 

51,520 

54,010

587,200

50,070 

35,330 

84,660 

49,700 

27,290 

18,720 

15,810 

15,450 

14,060

465,400

a No gage-height records discharge computed on basis of unpublished records for Tuolumne River at

Hlckman Bridge and Tuolumne River at Tuolumne City.

c Backwater from break in levee at Modesto sewer farm; discharge interpolated.
TUOLUMNE RIVER BASIN 263

Palls Creek near Hetch Hetehy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°46' f in NE£ sec, 3,, T. IN., R. 20 

K., in Yosemite National Park, 0.2 mile upstream from Wampana Falls. 1 mile upstream 

from mouth, and 2 miles northeast of Hetch Hetehy. Altitude of gage, about 5,600 feet 

(from topographic map).

Drainage area.- 45.2 square miles.

Records available.^ November 1915 to September 1949.

Average discharge.- 33 years (1916-49), 139 second-feet.

Extremes.- Maximum discharge during year, 1,220 second-feet May 14 (gage height, 5.95 feet, 

I'rom rloodmarks); no flow Oct. 1 to Nov. 2, Sept. 7-30.

1915-49: 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 except those for periods of ice effect and those for May 12-22, 

which are fair. No storage or diversion.

Revisions (water year).- W 531: 1917(M). W 931: 1938.

Rating table, water year 1948-49, except period of Ice effect 

(gage height. In feet, and discharge, In second-feet)

1.35 0 1.8 0.8 2.8 28 4.2 307 

1.4 .1 2.0 2.1 3.0 45 4.5 409 

1.5 .2 2.2 4.6 3.3 88 5.0 605 

1.6 .3 2.4 9.5 3.6 148 5.3 760 

1.7 .5 2.6 17 3.9 £20 5.6 955

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

.5 

12 

18

10

6.4 

4.4 

3.5 

2.8 

2.4

2.2 

1.9 

1.8 

1.6 

l.S

1.5

1.6 

1.7 

1.6 

1.6

1.6 

1.6 

al.5 

al.5 

al.4

al.4 

al.4 

al.4 

al.3 

al.2

Dec.

al.2 

al.2 

a2.o 

a3.0 

a5.0

 6.2 

6.7 

8.9 

10 

12

12 

10 

10 

15

12

11 

12 

12 

14 

16

16 

b!3 

b8. 7 

b6.7 

b7.3

9.8 

12 

12 

12 

13 

13

Jan.

15 

b!4 

bll 

b!2 

b!5

b!5 

20 

19 

b!4 *b!2

b!2 

blO 

blO 

b9 

b9

b8 

b8 

b9 

10 

14

12 

14 

b!6 

b!3 

b!4

b!6 

17 

18 

17 

17 

17

Feb.

16 

16 

17 

17 

20

18 

b22 

b!8 

b!8 

b!9

b28 

b27 

b23 

b22 

b23

26 

34 

39 

42 

40

35 

34 

34 

34

36

36 

33 

34

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

35 

34 

34 

39 

34

34 

31 

34 

32 

32

32 

34

34 

34 

36

39 

45 

53 

53 

45

45 

45 

40 

 36

37

43 

62 

59 

50 

46 

41

Apr.

46 

62 

76 

94 

119

119 

127 

123 

161 

202

339 

259 

279 

333 

387

398 

409 

395 

427

472

537 

64O 

695 

722 

705

583 

561 

529 

468 

416

Secondfoot -days

0 

91.3 

303.7

44,802.4

417 

761 

1,248 

10,683 

15,466 

9,935 

770.9 

62.1 

1.1

39,739.1

Peak discharge (base, 735 sec. -ft.).- Apr. 24 (6 p.m.)

May

445 

541 

521 

409 

391

387 

453 

468 

346 

307

434 

8650 

3700- 

a950 

a580

a540 

a530 

3360 

a28O 

a240

8220 

a230 

464 

630 

732

796 

8 2O 

695 

570 

464 

313

Maximum

0 

18 

16

955

20 

42 

62 

722 

950 

655 

66 

6.7 

.3

95O

June

215 

212 

270 

346 

487

596 

583

635 

610 

655

655 

541 

479 

483 

445

398 

356 

292 

215 

161

155 

157 

155 

142 

142

142 

131 

111 

90 

76

July

66 

64 

62 

60 

54

46 

4O 

36

33 

31

29 

27 

26 

24 

22

21 

19 

16 

14 

12

10 

8.9 

7.8 

7.0 

6.4

5.8 

5.6 

5.0 

i-4 

4.1 

3.9

Aug.

4.3 

5.8 

6.7 

5.8 

5.0

4.1 

3.6 

3.2 

2.8 

2.4

2.1 

1.9 

1.6 

1.5 

1.5

1.2 

1.1 

1.0

.8 

.7

.6 

.6 

.6 

.5 

.4

.4 

.4 

.4 

.4 

.4 

.3

Sept.

ooooo ooo

MM WH» 

 Hn-t.nl,,. Uaan RUHOff In Minimum Mean acre.feefc

00 0 

0 3.04 181 

1.2 9.80 602

0 122 88,860

8 13.5 827 

16 27.2 1,510 

31 40.3 2,480 

46 356 21,190 

220 499 30,680 

76 331 19,710 

3.9 24.9 1,530 

.3 2.00 123 

0 .04 2.2

0 109 78>fi40

790 sec. -ft.; May 14 (time unknown) l',220

see.-ft.; May 27 (8 a.m. ) 955 sec.-ft.; June 11 (9 a.m.) 772 sec.-ft.

* Winter discharge measurement made on this day.

a No gage-height record: discharge computed on basis of recorded range In stage and records for 

Cherry and Eleanor Creeks near Hetch Hetehy.

b Stage-discharge relation affected by Ice.
264 TUOLHMNE RIVER BASIN

Cherry Creek near Hetch Hetchy, Calif.

Location.-. Water-stage recorder, lat. 38°00', long. 119°54', in SW£ sec. 28, T. 2 N., R.

19 K.~ 2.5 miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor Creek,

and 7'. 5 miles northwest of Hetoh Hetchy. Altitude of gage, about 4,500 feet (from

topographic map). 

Drainage-' area.- 111 square miles. 

Hecoras available.- April 1910 to September 1949. 

Average discharge.- 39 years, 364 second-feet. 

Extremes.- maximum discharge during year, 3,310 second-feet May 14 (gage height, 8.22 feet);

minimum, 5.0 second-feet Aug. 20-22, Sept. 26-30."

1910-49: Maximum discharge, 18,100 second-feet Dec. 11, 1937 (gage height, 25.1

feet, from floodmarks), from rating curve extended above 4,000 seccnd-feet on basis of

velocity-area studies; no flow Sept. 6-12, 1910. 

Remarks.- Records good except those for pferiods of ice effect or doubtful gage-height record, which are fair. No diversion above station. Release from five small reservoirs

(total capacity, 2,990 acre-feet) has increased normal summer flow since 1931.

Ratin? table, water year 1948-49 except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Backwater corrections applied Apr. 15-20)

1.0 2.'8 1 - 48 2.7 343 

1.1 5.3 1 60 3.4 610 

1.2 9.1 2.0 76 4.0 850 

1.4 18 2.1 96 5.0 1,320 

1.5 24 2.2 124 6.0 1,880. 

1.7 39 2.4 194 6.9 2,420

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

14

14 

14 

14 

14

14 

14 

14 

14 

14

14 

27 

32 

34 

18

13 

10 

9.5 

9.1 

9.1

8.7 

8.3 

8.3 

7.9 

8.3

8.3 

8.3 

7.9 

8.3 

15 

23

Nov.

78 

210 

260 

104 

36

24 

18 

15 

13 

11

10 

10

8.7 

7.1 

6.7

*6.7 

10 

13 

10 

10

11 

9.5 

9.1 

8.7 

8.3

8.3 

8.3 

7.9 

8.3 

7.5

Dec.

7.5 

7.5 

9.1 

18 

33

38 

46 

60 

62 

63

62 

60 

52 

46 

48

50 

52 

45 

46 

59

74 

49 

39

31 

33

38 

40 

52 

55 

54 

54

Jan.

54 

50 

40 

40 

50

50 

65 

60 

50 

45

*40 

38 

35 

32 

30

30 

30 

32 

35 

38

40 

45 

50 

45 

48

50 

55 

55 

55 

55 

55

Feb.

52 

50 

55

55 

60

60 

70 

60 

60 

60

80 

80

75 

70 

70

80 

115 

130 

140 

130

110 

110 

110 

115 

120

120 

110

110

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948 

ary

ter year 1948-49 .......................

Mar.

110 

100 

95 

100 

100

95 

90 

90 

90 

90

90 

95 

95 

95 

100

110

125 

150 

150 

130

130 

*135 

120 

115 

110

130 

180 

175 

150 

135 

125

Apr.

1, 

1, 

1, 

1,

1, 

1,

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

428.0 

948.1 

1,383.1

110,966.3

1,397 

2,457 

3,605 

31,368 

42,663 

22,133 

1,248 . 

247.8 

192.7

108,070.7

140 

190 

235

338 

425

421 

393 

381 

522 

694

899 

020 

080 

190 

200

220 

300 

190 

200 

300

560 

770 

870 

950 

780

580 

520 

420 

320 

260

May

1,370 

1,540 

1,380 

1,190 

1,260

1,240 

1,340 

1,270 

984 

1,040

1,560 

2,060 

2,110 

2,380 

1,400

1,600 

1,600 

1,040 

899 

690

618 

886 

1,320 

1,680 

1,860

1,970 

1,840 

1,540 

1,280 

1,030 

686

Maximum

34 

260 

74

2,310

65 

140 

180 

1,950 

2,380 

1,430 

113 

14 

8.7

2,380

June

510 

646 

806 

976 

1,270

1,430 

1,320 

1,380 

1,350 

1,400

1,350 

1,130 

1,060 

1,030 

935

826 

750 

626 

457

333

328 

338 

323 

.293 

276

266 

238 

, 194 

158

- 134

July

113 

104 

99 

96 

90

76 

68 

58 

54 

48

44

41 

38 

34

32

29 

27 

23 

20 

17

16 

16 

14 

14

12

12 

11 

11 

11 

10 

10

Aug.

10

11

10 

9.1 

8.7

7.9 

7.5 

7.1 

6.7 

6.7

6.7 

9.4 

10 

7.5 

6.7

6.4 

6.0 

6.0 

5.7 

5.3

5.0 

5.3 

14

10

7.1

6.4 

7.5 

9.5 

10 

9.5 

9.1

Mini Hean

7.9 13.8 

6.7 31.6 

7.5 44.6

.6 303

30 45.1 

50 87.8 

90 116 

140 1,046 

618 1,376 

134 738 

10 40.3 

5.0 7.99 

5.0 6.42

5.0 296

Sept.

8.7 

7.9 

7.5 

7.5 

7.1

6.7 

6.4 

6.4 

6.4 

6.4

6.4 

6.4

6.7 

7.5 

7.9

6.7 

6.7 

6.7 

6.4 

6.0

6.0 

6.0 

6.0 

5.7 

5.3

5.0 

5.0 

5.0 

5.0 

5.3

Runoff In 

acre-feet

849

1,880 

2,740

220,100

2,770 

4,870 

7,150 

62,220 

84,620 

43,900 

2,480 

492 

382

214,400

Peak discharge (base, 2.400 sec. -ft.).- Aor. 24 (8:30 D.m. ) 2.570 sec. -ft.: Mav 14 (3:30 n.m. )3,31

sec.-ft.; May 26 (10 p.m.) 2,550 sec.-ft.

* Winter discharge measurement made on this day.

Note.- Stage-discharpe relation affected by ice Dec. 17-20, 23-25, 29-31, Jan. 1 to Feb. 28. 

Doubtful gage-height record Mar. 1 to Apr. 3; discharge computed on basis of 1 discharge measurement 

and records for Palls Creek near Hetch Hetchy.
TUOLUMNE RIVER BASIN 265

Lake Eleanor near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°53', in NW£ sec. 3, T. 1 N.,'R. 

19 E. ,' at dam on Eleanor Creek, 1.7 miles upstream from Miguel Creek and 5.5 miles 

northwest of Hetch Hetchy. Datum of gage is at mean sea level (levels by city of 

San Francisco).

Drainage area.- 79 square miles.

Records available.- October 1919 to September 1949 (1919-30, gage heights only).

Extremes.- Maximum contents during year, 27,200 acre-feet June 15 (elevation, 4,661.1 

1 feet) 1 ; minimum, 90 acre-feet Dec. 7 (elevation, 4,624.0 feet).

1919-49: 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 

 533,' 1918. 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. Recordu show available contents at 

12 p.m. except for Jan. 1 to Mar. 8 when available contents at 7 a.m. are shown.

Contents, In acre-feet, water year October 1948'to September 1949

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

20

26

27

28

29

30

31

Dot.

14,000

14,000

14,000

13,900

13,900

13,900

13,900

13,900

13,800

13,800

13,700

13,700

13,700

13,700

13,700

13,700

13,600

13 , 600

13,600

13,400

13,000

12,800

12,400

12,200

11,900

11,600

11,300

11,100

10,900

10,500

10,200

Nov.

10,100

9,900

9,900

. 10,100

9,820

9,580

 9,260

6,950

8,710

8,430.

g3,090

7,810

7,610

7,330

7,130

6,780

6,510

6,160

5,750

5,410

5,100

4,760

4,420

4,080

3,750

3,410

g3,010

2,680

2,260

1,920

-

Dec.

1,430

860

640

g330

g280

glOO

90

250

170

170

120

130

130

120

g!20

120

120

100

100

120

170

gl?0

g210

g!80

g210

g250

g280

g280

g280

g330

g330

Jan.

370

500

550

680

730

770

770

770

770

770

770

770

770

770

730

680

640

640

590

590

640

680

730

770

820

820

860

860

910

910

910

Feb.

860

820

820

820

860

910

910

950

950

910

820

820

590

590

550

420

420

420

460

500

590

250

330

370

370

460

550

550

..

.

-

Mar.

590

640

820

1,240

1,290

1,330

1,380

1,430

1,480

1,480

1,580

1,620

1,670

1,720

1,770

1,820

1,960

2,060

2,260

2,350

2,450

2,620

2,730

2,790

2,840

2,960"

3,180

3,460

3,580

3,690

3,800

Apr.

3,920

4,080

4,370

4,820

5,340

5,960

6,640

7,190

7,950

8,870

10,100

11,400 !

12,900

14,600

16,000

17,700

19,300

20,800

22,100

23,600

24,700

25,000

25,000

25,700

24,900

24,600

24,800

24,700

24,600

24,700

-

May

24,800

24,800

24,700

24,700

24,700

24,700

24,700

24,600

24,500

24,500

24,700

24,800

25,000

25,100

24,700

24,600

24,600

24,400

24,300

24,200

24,200

24,200

24,400

24,500

24,700

24,700

24,600

24,400

24,400

24,400

24,300

June

24, 100

24,000

24,000

g24,100

824,100

g24,300

g24,300

g24,300

24,400

24,800

25,500

26,000

26,500

27,000

27,200

27,100

26,900

26,700

26,700

26,800

26,900

26,900

26,900

26,900

26,900

26,800

26,800

26,700

26,700

26,700

-

July

26,700

26,700"

26,600

26,600

26,600

26,500

26,400

26,300

26,200

26,100

25,900

25,700

25,500

25,200

25,000

24,800

24,600

24,300

24,000

23,800

23,500

23,300

23,000

22,800

22,500

22,200

22,000

21,6100

21,300

21,000

20,800

Aug.

20,600

20,400

20,200

20,000

19,700

19,400

19,100

18,900

18,600

18,300

18,100

17,800

17,500

17,300

16,900

16,600

16,400

16,000

15,800

15,400

15,200

14,900

14,700

14,400

14,100

13,800

13,500

13,300

13-, 000

12,800

12,400

Sept.

12,200

11,900

11,600

11,300

11,100

10,800

10,500

10,200

9,820

9,500

9.26Q

8,950

8,640

8,360

8,090

7,810

7,540

7,260

6,990

6,710

6,440

6,090

5,750

5,410

5,100

4,820

4,540

4,200

3,920

3,580

-

g Computed from graph baaed on gage readings.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31..................

Calendar year 1948. . . .

Apr. 30. .................

Sept. 30. .................

Water year 1948-49. ...

Elevation 

(feet)t

4,625.5

-

4,632.0

.

Contents 

(acre-feet)

330

-

3,580

,

Change In 'contents 

during month 

(acre-feet)

3 900

8 280

-1,590

-5,630

-8,820

-1P,520

t Elevation at 12 p.m. except Jan. 31 and Feb. 28, which are at 7 a.
266 TUOLUMNE RIVER BASIN 

Eleanor Creek near 'Hetch Hetchy, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°58', long. 1190 53', in 

SWfsec. 3, T. IN., R. 19 E., in Yosemite National Park, 0.6 mile downstream from 

Lake Eleanor Dam, 1.1 miles upstream from Miguel Creek, and 5,5 miles northwest of 

Hetch Hetchy. Altitude of gage, about 4,600 feet {from topographic map).

Drainage area,- 80 square miles.

Records available.- November 1915 to September 1949. June to October 1901 and November 

1909 to November 1915 at site 1 mile upstream.

Average discharge.- 39 years (1910-49), 218 second-feet.

Extremes.- Maximum discharge during year, 1,440 second-feet May 14 (gage height, 5.91 

reel); minimum, 4.1 second-feet Nov. 4.

1909-49: Maximum discharge, 10,500 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, 

lam (see preceding page).

Plow regulated by Lake Eleanor beginning in

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.45 6.3 2.2 44 3.8 333 

1.5 7.6 2.4 63 4.1 450 

1.6 11 2.6 84 4.5 635 

1.7 14 2.8 110 4.9 835 

1.8 18 3.0 141 5.2 1,000 

1.9 24 3.2 176 5.6 1,230 

2.0 30 3.5 242 6.0 1,510

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

7.8 

8.1 

8.1 

8.1 

8.1

7.8 

7.6 

.6 

.3 

.6

.6 

.8

8.1 

8.1 

8.1

7.8 

7.8 

7.8 

7.8 

130

156 

155 

153 

151 

151

150

148 

146 

148 

148 

141

Nov.

136 

88 

25 

20 

103

136 

138

ISO 

153

151

155 

ISO 

148 

119 

119

158 

165 

167 

167 

167

165 

165 

165 

165 

165

165 

165 

165 

165 

165

Dee.

167

167 

138 

109 

83

77 

62 

54 

35 

41

38 

36 

35

37 

36

35

34 

34 

31 

29

30 

30 

30 

30 

30

30 

31 

33 

33 

34 

34

Jan.

34 

34 

34 

34 

34

34 

34 

34 

34 

34

32 

32 

32 

32 

32

32 

32

31 

31 

31

31

32 

32 

32 

32

32 

32 

32 

34 

37 

41

Feb.

43 

43 

43 

43 

43

48 

50 

54 

62 

72

75 

81 

78 

75 

75

72 

67 

67 

67 

67

78 

77 

75 

75 

76

76 

76 

77

Month

Oo to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

her. ....................................

lendar year 1948 

w*y

i. ........ ..............................

ter year 1948-49 .......................

Mar.

77 

77 

55 

51 

78

77 

77 

73 

74 

80

80 

80 

80 

80 

81

82 

82 

82 

82 

82

83

83 

83 

83 

83

84 

85 

85 

85 

85 

85

Apr.

86 

88 

89 

90 

91

91 

94 

94 

95 

97

99 

73 

29 

14

14

14 

14 

15

15 

36

406 

923 

1,120 

1,180 

1,150

962

918 

846 

780 

745

Secondfoot -days

1,916.0 

4,265 

1,623

67,307.3

1,024 

1,835 

2,454 

10,268 

21,391 

6,013 

3,548 

4,331 

4,425

63,093

May

745 

820 

810 

730 

690

670 

695 

695 

610 

572

675 

840 

978 

1,340 

994

770 

745 

655 

540 

473

402 

394 

472 

585 

675

730 

735 

660 

572 

580 

540

Maximum

156

167 

167

1,190

41 

81 

85 

1,180 

1,340 

442 

150 

148 

151

1,340

June

402 

323 

291 

285 

316

378 

426 

442 

311 

171

109 

89 

84 

91 

166

321 

303 

232 

196 

112

103 

104 

104 

104 

103

102 

100 

99 

83 

63

July

63 

62 

62

61 

61

68 

81 

90 

94

103

HO 

118 

114 

119 

120

125 

128 

128 

133

133

138 

141 

141 

141 

141

139 

138 

146 

150 

150 

150

Aug.

105 

76 

76 

126 

146

148

148 

146 

146 

146

146 

146' 

146 

146 

144

146 

146 

146 

146 

146

146 

146 

146 

146 

146

146 

146 

148 

148 

146 

146

Minimum Mean %

7.3 61.8 

20 142 

29 52.4

7.3 184

31 33,0 

43 65.5 

51 79.2 

14 342 

394 690 

63 300 

61 114 

76 140 

144 148

7.3 173

Sept.

146 

146 

148 

148

148

148 

150 

150 

150 

151

151 

151 

150 

150 

146

148 

148 

146 

148 

146

146 

146 

144 

144 

146

144 

146

146 

146 

146

Runoff In 

acre-feet

3,800 

8,460 

3,220

133,500

2,030 

3,640 

4,870 

20,370 

42,430 

11,930 

7,040 

8,590 

8,780

125,200
TUOLOMNE RIVER BASIN 267

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. 

IF~E77 -at Cliff House, 75 feet downstream from highway bridge on Big Oak'Flat road, 

0.5 mile southwest of Oakland Recreation Camp, and 0.6 mile upstream from Middle 

Tuolumne River. Altitude of gage, about 2,800 feet (from topographic map):

Drainage area.- 87.6 square miles.

Records available.- March 1923 to September 1949.

Average discharge.- 26 years, 88.9 second-feet.

Extremes.- Maximum discharge during year, 432 second-feet May 14 (gage height, 4.08 feet); 

minimum, 5.0 second-feet Dec. 24.

1923-49: 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 ice effect or no gage-height record, 

wmcn are fair. No storage or diversion.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height. In feet, and discharge, In second-feet)

0.8 5.2 1.3 13 1.8 31 2.8 128 

.9 6.2 1.4 16 1.9 36 3.1 173 

1.0 7.5 1.5 19 2.0 42 3.4 223 

1.1 9.0 1.6 23 2.2 60 3.7 30O 

1.2 11 1.7 27 2.5 91 3.9 365

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

8.3 

8.0 

7.7

.-. 8.0 

'" J 8.3

8.6 

8.4 

8.1 

7.7 

7.7

9.3 

15 

14 

14 

12

11 

10

10 

9.6 

9.8

9.8 

9.5 

9.2 

9.2

9.3

9.3 

9.3 

9.3 

10 

12 

11

Nov.

12 

14 

15 

15

12

12

11 

11 

11 

11

11 

11 

11 

10 

10

10 

12 

11 

11 

11

11 

10 

11

11 

10

11 

9.0 

11 

11 

10

Dec.

10 

11 

12 

12 

15

19 

14 

ITS 

14 

14

13 

13 

21 

21 

16

*15 '18 

16 

13 

15

16 

14 

14 

b7.0 

b!4

26 

28 

20 

18 

17 

17

Jan.

19 

19 

10 

bll 

b!4

*b!5 

b!4 

b!3 

b!2 

bll

b!3 

b!3 

b!3 

b!2 

b!2

b!3 

14 

14 

16 

20

18 

17 

b!5 

b!4 

b!3

b!4 

b!5 

16 

16 

15 

15

Feb.

16 

16 

16 

16 

16

16 

15 

*b!4 

b!4

17

22 

19 

b!6 

b!7 

18

19 

21 

23 

25 

27

26 

27 

*29 

35 

36

40 

38 

35

Month

Oo to 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base 374 sec. -ft.).- Aor.

* Winter discharge measurement made on thl

Mar.

38 

70 

210 

137 

87

63 

53 

45 

43 

71

150 

115 

91

78 

78

87 

97 

101 

119 

113

97 

86 

76

73

75 

91 

107 

95 

87 

76

Apr.

84 

91 

98 

115 

135

148 

146 

138 

151 

183

207 

212 

214 

234 

245

234 

245 

225 

209 

214

250 

285 

300 309' 

294

273 

270 

262 

245 

232

Secondfoot-days

303.4 

337.0 

489.0

22,557.4

446 

631 

2,810 

6,248 

6,813 

2,187 

569 

281.0 

187.2

21,301.6

24 (12 p.m.) 

9 day.

May

238 

258 

241 

219 

227

234 

243 

234 

202 

189

225 

248 

279. 

348 

245

234 

236 

209 

197 

175

163 

187 

210 

223 

227

230 

212 

189 

173 

167 

151

Maximum

15 

15 

28

414

20 

40 

210 

309 

348 

134 

28 

12 

7.2

348

June

128 

132 

134 

127 

127

128 

124 

114 

'101 J04 

91 

80 

73 

67 

61

55 

50 

48 

50 

46

42 

41 

38 

36 

35

33 

32 

31 

30 

29

July

28 

27 

26 

26 

25

24 

24 

23 

22ei

20 

19 

18 

18 

18

17 

16 

16 

15 

15

15 

15 

14 

14 

14

14 

14 

13 

13 

13 

12

Aug.

12 

12 

12 

11 

10

10 

1011

10 

10

alO 

all 

all 

alO 

alO

a9.8 

a9.4 

a9.0 

a8. 6 

aS.l

a7.8 

a7.3 

a6.S 

a6 9 

a7.0

a/.O 

a6.9 

as. 7 

a6.6 

a6.4 

a6.7

Sept.

a7.2 

a7.2 

a7.l 

36.9 

36.8

a6.6 

36.3 

36.2 

36.1 

a6.0

36:2 

aS. 2 

36.2 

a6.2 

a6.2

36.2 

a6.1 

36.0 

35.9

aS.8

35.7 

aS. 7 

aS. 7 

aS. 7 

aS. 8

a5.9 

36.0 

36.2 

36.4 

a6.7

mr,< «. K.O., Runoff In Minimum Mean aore. feet

7.7 9.79 602 

9.0 11.2 668 

7.0 15.8 970

7.0 61.6 44,740

10 14.4 885 

14 22.5 1,250 

38 90.6 5,570 

84 208 12,390 

1'51 220 13,510 

29 72.9 4,340 

12 18.4 1,130 

6.4 9.06 557 

5.7 6.24 371

5.7 58.4 42,240

379 sec. -ft.) May 14 (3 a.m.) 432 sec. -ft.

o gage-height record: discharge computed on basis of recorded range In stage and records for 

e Tuolumne River at Oakland Recreation Camp.

a No Middl

b Stage-discharge relation affected by Ice.
268 TUOLUMNE RIVER BASIN

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°50' ( long. 120°00<, In NW$ sec._£8, T. 1 S., R. 

18 E., at Oakland Recreation Camp, 0.5 mile upstream from South Pork Tuolurane 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 1949.

Average discharge.- 32 years (1917-49), '71.1 second-feet.

Extremes.- Maximum discharge during year, 573 second-feet May 14 (gage height, 5.07 feet); 

minimum, 0.6 second-foot Sept. 24, ES.

1917-49: 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 except those for periods of ice effect, which are fair. Small 

diversion above station for irrigation.

Rating tatle, water year 1948-49, except periods of loe effect 

(gage height. In feet, and discharge, In second-feet)

0.6 0.6 1.2 7.1 2.0 35 3.6 230 

.7 1.3 1.3 8.8 2.2 46 4.0 315 

.8 2.4 1.4 11 2.5 68 4.3 382 

.9 3.4 1.5 14 2.8 95 4.7 478 

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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.8 

1.6 

1.5 

1.5 

1.5

1.5 

1.5 

1.5 

1.4 

1.3

1.6 

2.1 

2.6 

3.4

3.7

3.1 

2.9 

2.6 

2.4 

2.4

2.4 

2.4 

2.4 

2.2 

2.2

2.2 

2.2 

, 2.2 

2.5 

2.9 '3.0

Nov.

3.1 

3.7 

6.0 

7.3 

6.0

4.9 

4.0

3.7 

3.4 

3.3

3.1

3.1 

3.1 

3.1 

3.1

3.1 

3.7 

3.4 

3.4 

3.2

3.4 

3.1 

3.1 

3.3 

3.2

3.2 

2.7 

2.6 

3.2 

2.9

Dec.

2.9

3.1 

4.1 

3.6 

4.1

5.8 

4.7 

4.9 

4.6 

4.6

4.6 

4.2 

6.0 

6.3 

4.6

*4.7 

6.0 

5.2 

< 4.2 

N 4.8

4. .7 

4.6 

4.0 

2.9 

4.6

10

11 . 

6.4 

5.4 

5.3

5.3

Jan.

5.8 

6.2 

4.3 

5.2 

 4.9

*b5.0 

b4.8 

b4.5 

b4.4 

b4.2

b4.5 

b4.7 

b4.8 

b4.8 

b4.5

5.0 

b5.5 

b6.0 

6.4

7.1

6.0 

6.3 

5.9 

b5.5 

bS.O

b5.2 

b5.5 

5.9 

5.9 

6.0 

5.9

Feb.

6.0 

6.0 

6.2 

6.2 

6.4

6.4

b6.0 

*b5.5 

b6.0 

7.1

12 

b7.0 

b6.0 

b5.5 

7.1

7.1 

8.6 

10 

11 

11

10 

11 

*12 

16 

16

19

18 

16

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May

June 

July 

Augu 

Sept

Wa

mber. .............--.....-..-.-.-......-

lendar year 1948

ter year 1948-49 .......................

Mar.

17 

32 

172 

92 

42

28 

24 

20 

19 

31

55 

67 

38 

32 

32

37 

40 

40 

49 

45

42 

41 

38 

34

33

34 

40' 

45 

39 

38 

34

Apr.

36 

40 

43 

47 '52

55

57 

56 

57 

63

72 

80 

81 

85 

90

92

107 

105 

103 

106

125 

160 

187 

197 

206

187 

200 

204 

191 

184

Secondfoot-days

68.5 

108.4 

157.2

19,776.6

165.7 

265.1 

1,330 

3,268 

8,369 

2,863 

339.7 

74.2 

31.7

17,040.5

May

191 

226 

222 

206 

214

224 

242 

244

210

187

250 

315 

375 

471 

- 311

300 

319 

275 

240 

210

197 

240 

297 

333 

350

36A 

339 

' 297 

265 

244 

214

Maximum

3.7 

7.3 

11

440

7.1 

-19 

172 

206 

471 

200 

24 

4.0 

2.3

471

June

184 

199

200 

184 

186

189 

175 

162 

143 

135

119 

101 

90 

80 

73

66 

60 

54 

61 

54

48 

43

40 

36

36

33 

30 

28 

, 28 

26

July

24 

22 

21 

20 

19

18 

17 

16 

15 

14

13 

12 

11 

11 

9.9

9.0 

8.5 

7.8 

7.1 

6.7

6.4 

6.2 

5.9 

5.6 

5.5

5.3 

5.0 

4.8 

4.6 

4.4 

4.0

Aug.

4.0 

3.8 

3.6 

2.9

3.0

2.8 

2.8 

2.7 

2.6 

2.5

2.6 

2.7 

2.6 

2.5 

2.5

2.4 

2.2 

2.2 

2.0 

1.8

1.8 

1.8 

- 2.0 

2.0 

2.0

1.8 

1.7 

1.8 

1.8 

1.7 

. 1.6

Sept.

2.3 

1.8 

1.4 

1.1 

1.6

1.3 

1.2 

1.1 

1.0 

.9

1,0 

1.0 

1.0

1.0 

1.0

1.0 

1.0 

.9 

.9 

.9

.8 

.7 

.7 

.7 

.8

.7 

.8 

1.0 

1.0 i.i

Minimum Mean *£%£

1.3 2.21 136 

2.6 3.61 215 

2.9 5.07 312

1.1 54.0 39,220

4.2 5.35 329 

5.5 9.47 526 

17 42.9 2,640 

36 109 6,480 

187 270 16,600 

26 95.4 5,680 

4.0 11. 0 674 

1.6 2.39 147 

.-7 1.06 63

.7 46.7 33,800

Peak discharge (base. 370 sec.-ft.).- May 14 (7 a.m.) 573 sec.-ft.j May 27 (12:15 a.m.) 490 sec.-

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected 'by Ice.
TUOLUMNE RIVER BASIN 269 

Woods Creek near Jacksonville. Calif.

Location.- Water-stage recorder, lat. 37°51', long. 120°24 I , in SW£ sec. 12, 1. IS., R. 

14 is., 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 1949.

Average discharge.- 24 years, 59.3 second-feet.

Extremes.- Maximum discharge during year, 3,320 second-feet Mar. 3 (gage height, 10.70 

reetj, from rating curve extended above 750 second-feet on basis of velocity-area 

studies;' no flow Oct. 1-8, June 30 to Sept. 30.

1925-49: Maximum discharge, 13,500 second-feet Feb. 9, 1938, from rating curve 

extended'above 1,000 second-feet on basis of velocity-area studies; maximum gage height, 

13.5'feet present datum, Feb. 3, 1945; no flow at times during summers of 1929-36, 

1-939, T940, 1947-49.

Remarks.- Records good except those for periods of no gage-height record and those for May 

ib-ue, 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0 

0 

9 

0 

0

0 

0 

0 

.4 

.7

1.3 

2.0 

2.2 

1.9 

1.6

1.3 

1.1 

1.3 

1.2 

1.2

1.3 

1.4 

1.3 

.9 

.8

.8 

.8 

.8 

.8 

1.0 

1.2

Nov.

al.5 

3.5.5 

a5.5 

a6.0 

a5. 5

a5. 2 

a5.0 

a4.8 

a4.6 

a4.4

34.2 

a4.0 

a3.9 

a3.6 

a3.7

a4.0 

a3.8 

a3.6 

3.6 

3.8

4.0 

3.8 

3.8 

3.8 

3.6

3.6 

3.6 

3.6 

3.8 

3.8

Dec.

3.8 

3.8 

6.2

8.2

5.7

7.9 

8.2 

7.6 

7.0 

6.5

6.3 

6.8

11 

30 

30

23 

34 

33 

22

15

13 

12 

12 

11 

12

27 

134 

71 

35 

26 

22

Jan.

20 

45 

29

13 

15

18 

15 

13 

12 

9.6

7.9 

9.0 

8.6 

9.0 

9.0

7.9 

7.3 

7.6 

13 

75

40 

59 

52 

33 

23

20 

17 

16 

16 

15 

15

Feb.

16 

16 

20 

27 

74

56 

259 

90 

52 

52

241 

123 

67 

48 

40

38 

52 

84 

 86 

86

68 

70 

72 

85 

102

80

91 

60

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

Mar.

52 

63 

1,390 

673

200

117 

93 

87 

80 

84

303 

67.3 

238 

136 

110

131 

150 

91 

240 

232

133 

236 

482 

261

169

126 

107 

99 

84 

81 

79

Apr.

70 

66 

65 

60 

55

52 

51 

50 

47 

46

45 

41 

40 

36 

39

45 

44 

44 

42 

40

37 

37 

36 

34 

33

32 

29 

27 

27 

25

Secondfoot-days

27.3 

121.8 

651.0

11,996.5

654.9 

2,155 

7,000 

1,295 

405.4 

43.2 

0 

0 

0

12,353,6

May

24 

23 

22 

22 

24

22 

18 

15 

14 

12

14 

15

17 

13 

11

10 

9.3 

9.6 

12 

13

10 

8.6 

9.3 

9.0

12

8.2 

6.3 

6.3 

5.0 

5.4 

5.4

Maximum

2.2 

6.0 

134

858

75 

259 

1,390 

70 

24 

7.0 

0 

0 

0

1,390

June

7.0 

6.5 

4.2 

4.0 

3.0

2.2

2.3 

2.0 

1.3 

1.6

1.2 

1.0 

.8 

.7 

 5

.4 

.4

.4 

.4 

.6

.6 

.5 

.3 

.2 

.2

.1 

.1 

.1 

.1 

.0

July

Minimum

0 

1.5 

3.8

0

7.3 

16 

52 

25 

5.0 

0 

0 

0 

0

0

Aug.

Mean

O.S3 

4.06 

21.0

32.8

21.1 

77.0 

226 

43.2 

13.1 

1.44 

0 

0 

0

33.8

Sept.

Runoff in 

acre-feet

54 

242 

1 290

23.81O

1,300 

4,270 

IS, 880 

2,570 

804 

86 

0 

0 

0

24,500

Peak discharge (base, 900 see.-ft 

sec . HfTn

a Ho gage-height record; discharge 

Oakland Recreation Camp.

K- Mar. 3 (6 p.m.) 3,320 sec.-ft., Mar. 12 (4:30 a.m.) 1,000 

computed on basis of records for South Fork Tuolumne River near
270 TUOLUMNE RIVER BASIN

Modesto Canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°40'04", long. 120°27'26", in 

swt sec. 17, T. 3 S,, R. 14 E., 0.5 mile northeast of La Orange and 1 mile downstream 

from intake at La Grange Dam. Datum of gage is 272.4 feet above mean sea level (levels 

by Modesto Irrigation District).

Records available.- April 1903 to September 1949. 

Average discharge.- 46 years, 372 second-feet.

Extremes.- Maximum daily discharge during year, 1,570 second-feet June 12; no flow Oct. 18 

to Nov. 22.

1903-49: Maximum daily discharge, 1,820 second-feet July 1, 1935; no flow at times.

Remarks.- Records excellent except those for period of no 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

448 

414 

418 

408 

342

318 

315 

314 

306 

309

306 

233 

211 

174 

112

28 

.4 

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

.1

.8 

1.1

1.0 

1.0 

1.0 

.8 

.6

Dec.

0.8 

281 

416 

129 

73

450 

a 400 

a390 

388 

460

149 

24 

431 

394 

384

440 

434 

179 

39 

454

458 

448 

42 

35 

44

47 

50 

49 

49 

49 

48 

Jan.

39 

41 

45 

40 

40

38

37 

33 

32 

41

51 

49 

50 

47 

42

40 

46 

43

42 

41

49 

46 

49 

27 

45

72 

72 

80 

80 

76 

75

Feb.

75 

76 

75 

76

51

45 

45 

49 

48 

16

1.0 

1.0 

.8 

.6 

.6

.8 

.8 

.6 

.6 

.6

.6 

,6 

.6 

.6 

.6

.8 

.6 

.8

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Pebn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

tta

ber. ....................................

Tiber. ...................................

lendar year 1948 

sry

ter year 1948-49 .......................

Mar.

0.6 

,5 

.8 

.8 

.6

.6 

.6 

.6 

.6 

.6

.8 

.6 

.5 

.5 

.5

.4

.4 

.5 

.5

.6

.6 

.5 

.5 

7.1 

17

220 

320 

322 

320 

320 

319

Apr.

320 

697 

815 

844 

851

844 

849 

851 

1,080 

1,350

783 

1,060 

1,480 

1,520 

1,520

1,520 

1,520 

1,520 

1,490 

1,430

1,420 

1,420 

1,420 

1,410 

1,380

1,360 

1,360 

1,360 

1,270 

1,210

Secondfoot -days

4,656.4 

6.4 

7,234.8

170,563.7

1,508 

568.6 

1,858.4 

35,954 

29,642 

32,773 

23,412 

23,151 

15,479

176,243.6

May

1,210 

1,210 

1,200 

1,060 

1,010

1,030 

1,020 

1,010 

998 

1,000

998 

1,000 

998 

993 

990

998 

1,000 

1/010 

927 

844

836 

834 

829 

829 

829

834 

834 

829 

829 

829 

824

Maximum

448 

1.1 

460

1,340

80 

76 

322 

1,520 

1,210 

1,570 

820 

888 

535

1,570

June

824 

822 

820 

817 

817

820 

921 

1,080 

1,250 

1,450

1,520 

1,570 

1,500 

1,470 

1,210

1,230 

1,480 

1,490 

1,500 

1,350

1,150 

1,150 

1,150 

881 

755

748 

748 

750 

750 

750

July

750 

750 

750 

750 

750

748 

750 

750 

750 

750

750 

748 

748 

748 

748

750 

748 

748 

748 

745

745 

750 

750 

750 

748

748

750 

750 

805 

820 

817

Minimum

0 

0 

.8

0

27 

.6 

.4 

320 

824 

748 

745 

560 

498

0

Aug.

849 

888 

882 

882 

882

867 

864 

864 

851 

836

827 

824 

820 

808 

706

697 

700 

693 

697 

702

693 

706 

697 

704 

656

634 

628 

586 

574 

574 

560

Maan

150 

.21 

233

466

48.6 

20.3 

59.9 

1,198 

956 

1,092 

755 

747 

516

483

Sept.

502 

509 

511 

504 

524

524 

509 

515 

520 

526

524 

527 

527 

531 

535

529 

524 

527 

533 

524

522 

526 

515 

499 

498

501 

499 

498 

498 

498

Runoff in 

acre-feet

9,240 

13 

14,350

338,3*00

2,990 

1,130 

3,690 

71,310 

58,790 

65,000 

46,440 

45,920 

30,700

349,600

a No gage-height record; discharge estimated.
TUOLUMNE RIVER BASIN 271

Turlock Canal near La Grange, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°40'00", long. 120 0 26'25",

 near north line of NVf£ 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 1949. 

Average discharge.- 51 years, 526 second-feet.

Extremes,- Maximum daily discharge during year, 2,280 second-feet June 12.; minimum daily,

 1.1 "second-feet Jan. 16. 

1898-1949: Maximum daily discharge, that of June-12, 1949; no diversion for irrigation daring some periods in each year. Prior to 1939, unmeasured small discharge 

during winter called zero.

Remarks.- Records excellent. Canal diverts from left bank of Tuolumne River at La Grange 

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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

212." 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

367 

217 

36 

422 

457

459 

448 

457 

245 

98

281 

238 

271 

252 

186

165 

18 

297 

294 

274

304 

253

137 

6.8 

286

305 

314 

357 

366 

254 

8.8

Nov.

425 

340 

325 

366 

349

136 

15 

381 

388 

371

174 

292 

159 

43 

351

347 

342 

556 

358 

134

36 

374

341 

387

111

301 

181 

36 

363 

411

Dec.

426 

200 

6.2 

5.4 

5.1

5.5 

11 

12 

8.6 

6.0

5.6 

4.3 

4.3 

4.0 

6.6

19 

11 

8.4 

3.3

11

10 

8.6 

35 

26 

4.O

5.2 

24 

30 

28 

23 

23

Jan.

2.6 

2.6

13 

11 

8.2

7.3 

7.3 

1.2 

1.2 

7.3

10 

5.0 

12 

3.2 

1.2

1.1 

7.4 

5.3 

34 

22

26 

2.2 

5.3 

69

15

2.9 

8.8 

9.8 

5.9 

3.1 

2.9

Feb.

3.4 

28 

33 

63

16

2.4 

5.0 

29 

9.7 

2E

46

10 

3.4

3.4 

3.1

9.6 

4.0 

2.2 

1.9 

1.9

1.9 

1.9 

4.0 

2.9 

2.4

3.1 

3.1 

4.5

Month

Octo 

Nove 

Dece

Ca

JanU 

Pebr 

Marc 

Apr!

MMV

June 

July 

Augu 

Sept

 Ha

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

6.7 

5.8 

63 

39 

1.7

1.7 

1.7 

8.5 

57 

40

22 

19 

2.6

21 

10

5.4 

5.4 

4.9 

4.5 

4.5

5.4 

4.9 

3.4 

4.0 

4.0

5.8 

4.9 

5.4 

5.4 

4.9 

4.9

Apr.

4.9 

554

914 

1,140 

1,660

1,730 

1,680 

1,710 

1,880 

2,100

2,100 

2,110 

2,120 

2,120 

2,100

2,100 

2,100 

2,110 

2,120 

2,150

2,180 

2,170 

2,180 

2,170 

2,170

2,160 

2,160 

2,170 

2,180 

2,170

Secondfoot -days

8,053.6 

8,193 

980.6

260,215.4

313.8 

320.8 

367.4 

56,212.9 

54,629 

54,380 

43,820 

37,796 

28,327

293,394.1

May

2,170 

2,170 

2,170 

2,160 

2,160

2,180 

2,210 

2,220 

2,17O 

2,220

2,230 

2,240 

2,240 

2,180 

2,170

2,200 

2,190 

2,190 

1,580 

1,110

912 

741 

828 

853 

825

1,130 

1,430 

1,440 

1.430 

1,440 

1,440

Maximum

459 

425 

426

2,040

69 

63 

63 

2,180 

2,240 

2,280 

1,520 

1,430 

1,320

2,280

June

1,44O 

1,440 

1,440 

1,430 

1,420

1,430 

1,820 

2,100 

2,130 

2,070

2,190 

2,280 

2,180 

2,050 

2,030

2,220 

2,160 

2,090 

2,140 

1,990

2,040 

2,040 

2,040 

1,660 

1,490

1,510 

1,510 

1,34O 

1,350 

1,350

July

1,350 

1,350 

1,350 

1,350 

1,350

1,350 

1,350 

1,350 

1,360 

1,360

1,370 

1,380 

1,380 

1,380 

1,400

1,390 

1,390 

1,410 

1,440 

1,450

1,450 

1,45O 

1,460 

1,470 

,1,490

1,500 

1,520 

1,520 

1,500 

1,460 

1,490

Minimum

6.8 

15 

3.3

0.2

1.1 

1.9 

1.7 

4.9 

741 

1,340 

1,350 

746 

465

1.1

Aug.

1,310 

1,210 

1,210 

1,200 

1,200

1,190 

1,070 

1,230 

1,280 

1,290

1,320 

1,33O 

1,330 

1,280 

1,230

1,270 

1,290 

1,200 

1,140 

1,040

746 

1,240 

1,240 

1,180 

1,260

i 1,300 

1,160 

850 

1,370 

1,430 

1,400

Mean

260 

273

31.6

711

10.1 

11.5 

11.9 

1,874 

1,762 

1,813 

1,414 

1,219 

944

804

Sept.

929 

871 

755 

467 

556

838 

905 

913 

876 

794

465 

871 

866 

884 

1,020

1,020 

901 

778 

1,140 

1,070

1,170 

1,210 

1,320 

1,120 

885

1,-220 

1,240 

1,220 

993 

1,030

Runoff In 

acre-feet

15,970 

16,250 

1,940

516,100

622 

636 

729 

111,500 

108,400 

107,900 

86,920 

74,970 

56,190

582,000
272 " STANISLAUS RIVER BASIN

Middle Pork Stanislaus River at Kennedy Meadows, Calif.

Location.- Water-stage recorder, lat. 38°18', long. 119°45', in NE£ sec. 11, T. 5 N., R. 

au ii., 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 1949.

Average discharge.- 10 years (1938-45, 1946-49), 125 second-feet.

Extremes.- Maximum discharge during year, 767 second-feet May 26 (gage height, 5.34 feet); 

minimum, 9.5 second-feet Mar. S9, but may have been less during period of ice effect. 

1938-49: Maximum discharge recorded, 1,160 second-feet June 1, 1943 (gage height, 

6.17 feet); minimum, 5.0 second-feet Feb. 11, 1948.

Remarks.- Records good except those for period of ice effect or no gage-height record, 

wnich are poor. Flow regulated since beginning of record by Relief Reservoir (usable 

capacity, 15,550 acre-feet). No diversion.

Cooparation,- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

In connection with a Federal Power Commission project.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

1.1 9.5 1.8 34 2.9 114 4.1 332 

1.2 12 2.0 43 3.2 154 4.4 416 

1.4 18 2.3 60 3.5 202 417 516 

1.6 26 2.6 83 3.8 260 5.1 668

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

59 

59 

59 

58 

58

58 

58 

57 

57 

58

57 

57 

56 

57 

56

55 

55 

55 

55 

55

55 

55 

55 

54 

54

54 

80 

108 

109 

108 

108

Nov.

114

113 

113 

109 

108

108 

107 

106 

80 

59

59 

58 

58 

58 

58

58 

58 

58

57 

57

56 

78 

103 

102

101

99 

100 

100 

99 

99

Dec.

98 

97

96 

97 

97

97 

97 

96 

94 

94

94 

93 

92 

91 

92

92 

91 

89 

89 

89

88 

87 

88 

86 

87

87 

87 

85 

84 

83 

83

Jan.

82

81 

77 

76 

75

74 

74 

74 

b74 

b74

b74 

b73 

b72 

b71 

b70

69 

70 

70 

71 

69

67 

66 

66 

64 

60

60 

61 

59 

56 

54 

b50

Feb.

44

> b!5

bio 

b!2

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ...............

Mar.

b!4

b!5 

b!5 

bis 

a!7 

al6

a!6 

al8 

a!6 

a!5 

a!5

b!6 

bEO

15 

10 

10 

11

Apr.

' 13 

16 

16 

17 

22

26 

24 

23 

31 

42

50 

59 

70 

87 

92

100 

112 

112 

114 

122

151 

178 

194 

206 

192

170 

170 

IBS 

153 

141

May

147 

162 

156 

143 

137

129 

137 

139 

116 

109

136 

184 

211 

351 

389

426 

438 

340 

304 

254

220 

236, 335' 

485 

579

664 

'660 

563 

448 

337 

256

Second- Maximum 

foot -days imum

1,979 109 

2,533 114 

2,820 98

38,226.2 696

2,133 82 

350 44 

450 

2,868 206 

9,191 664 

9,353 579 

2,291 144 

1,468 73 

372 16

35,808 664

June

207 

211 

179 

108 

161

328 

489 

552 

556 

571

579 

499 

499 

506 

465

438 

392 

319 

216 

184

197 

194 

184 

200 

226

228 

202 

173 

151 

139

July

134 

137 

144 

144 

125

1-08 

99 

97 

95 

95

92 

88 

86 

83 

80

73 

66 

59 

53 

46

42 

40 

38 

36 

36

34

33 

32 

31 SI34

Aug.

36 

34 

31 

29 

26

25

23 

41 

73 

67

59 

59 

58 

56 

56

56 

56 

55 

54

53

53 

56 

54 

53 

52

52 

52 

53 

52 

30 

14

Minimum Mean

54 63.8 

56 84.4 

83 91.0

7.2 104

50 68.8 

12.5 

14.5 

13 95.6 

109 296 

108 312 

31 73.9 

14 47.4 

11 12.4

98.1

Sept.

14 

14 

14 

13 

13

13 

13 

13 

12 

12

12 

14 

16 

13 

12

12 

12 

12 

12 

12

12 

12 

11 

11

11

11 

11 

12 

12 

11

aSrl-fee?

3,930 

5,020 

5,590

75,820

4,230 

694 

893 

5,690 

18,230 

18,550 

4,540 

2,910 

738

71,020

a No gage-height record; discharge computed on basis of weather records and records for 

Sand Bar Flat near Avery.

b Stage-discharge relation affected by ice.
STANISLAUS RIVER BASIN 273

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

Location.- Water*-stage recorder, lat. SB0 !! 1 , long,. 120°09', in sec. 19, T. 4 N., R. 17 E., 

i mile upstream from diversion dam of Pacific Gas & Electric.Co. at Sand Bar Plat and 

11 miles southeast of Avery. Altitude of gage, about 2,650 feet (from topographic map).

Dralnagg area.- 318 square miles.

Kecoras available.- September 1905 to September 1949.

Average aiscnargeT- 43 years (1905-8, 1909-49), 685 second-feet.

KXtremes.- Maximum discharge during year, 3,440 Second-feet Apr. 24 (gage height, S.61 

rees); mtalmum, 32 second-feet Feb. 12.

190S-49: 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 except those for periods of Ice effect, which are poor. Plow partly 

regulated by Relief Reservoir beginning in 1909 (capacity, 15,550 acre-feeF), Water 

diverted by Philadelphia Canal (see p.280) from South Pork 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 1946-49, except periods of Ice effect 

(gage height, In feet, and discharge. In second-feet)

2.7 52 4.0 223. 5.6 680 7.5 1,650 

3.0 81 4.4 308 6.0 840 8.0 2,000 

3,3 116 4.S 412 6.5 1,080 8.5 2,400 

3.6 157 5.2 540 7.0 1,340 9.1 2,930

Discharge, In second-feet, water year October 1948 to September 1949

 Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

153 

108 

103 

116 154-

154

153 147' 

102 

99

119 

153 

157 

160 

156

109 

103 

119 

150 

150

150

147 

98 

97

115

147 

147 

168 

188 

149 

151

Nov.

180 

255 

245 

243 

' 207

158 

156 

168 

178 

182

162 

156 

106 

105 

125

160 

163 

157 

149 

106

104 

114 

177 

195 

144

143 

135 

143 

143 

137

Dec.

142 

142 

151 

147 

180

175 

164 

198 

196 

162

160

158 

170 

170 

169

175 

195 

168 

158 

170

169

163 

151 

160

157

190 

175 

166 

158 

158 

154

Jan.

158 

b!50 

b!40 

bl40 

b!50

b!60 

b!40 

b!40 

bl30 

bllO

bllO 

153 

162 

150

135

128 

124 

136 

133 

135

128 

126 

122 

b!20 

b!20

b!20 

. 121 

122 

115 

115 

111

Feb.

105

104 

84

76 73'

70 

71 

70 

76 

79

81 

64 

68 

84 

80

77 

77 

82 

86 

89

86 

85 

90 

93 

99

104 

104 

104

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

uax*y B B .... i *

ter year 1948-49 .......................

Mar.

108 

112 

146 

130 

129

121 

116 

111 

111 

114

132 

126 

124 

125 

130

144 

153 

158 

185 

174

170 

193 

182 

163 

157.

157 

195 

233 

196 

185 

174

Apr.

183 

218 

233 

278 

358

445 

455 

439 

523 

680

885 

1,020 

1,120 

1,270 

1,330

1,360 

1,550 

1,480 

1,480 

1,530

1,870 

2,230 

2,440 

2,600 

2,450

2,180 

2,180 

2,100 

1,940 

1,780

Secondfoot -days

4,222 

4,796 

5,151

206,689

4,104 

2,362 

4,654 

38,607 

60,580 

33,896 

7,019 

4,089 

2,725

172,205

Peak discharge (base, 1,900 sec. -ft.).- Apr. 24 (11 p.

May

1,830 

2,050 

1,900 

1,730 

1,760

1,720 

1,840 

1,820 

1,500 

1,470

1,850 

2,240 

2,400 

2,930 

2,320

2,390 

2,380 

1,940 

1,710 

1,510

1,370 

1,400 

1,630 

2,050 

2,340

2,590 

2,610 

2,300 

1,980 

1,640 

1,380

Maximum

188 

255 

198

3,890

162 

105 

233 

2,600 

2,930 

1,880 

. 430 

178 

121

2,930

June

1,180 

1,160 

1,200 

1,100 

1,250

1,430 

1,660 

1,780 

1,790 

1,880

1,870 

1,630 

1,530 

1,530 

1,420

1,330 

1,220 

1,080 

862 

724

712 

704 

666 

656 

673

676 

638 

568 

513 

464

July

430 

412 

404 

401 

374

337 

315 

299 

285 

274

261 

249 

237 

227 

219

209 

196 

182 

169 

156

15p 

143 

137 

130 

128

124 

119 

116 

114 

110 

112

Aug.

150 

140 

135 

139 

139

102 

94 

104

147 

178

175 

158 

121 

117 

129

160 

158 

157 

143 

106

105 

104 

125 

153 

150

139 

100 

104 

106 

116 

135

Minimum Mean

97 136 

104 160 

142 166

97 5S5

110 132 

64 84.4 

108 150 

183 1,287 

1,370 1,954 

464 1,130 

110 226 

94 132 

53 90.8

53 472

Sept.

112 

97 

59 

57 

56

69 

102 

102 

92 

53

54 

54 

82

121 

108

105 

103 

102 

102 

100

100 

102 

105 

99 

98

97 

97 

99 

99 

99

Runoff In 

acre-feet

8,370 

9,510 

10,220

409,900

8,140 

4,680 

9,230 

76,580 

120,200 

67,230 

13,920 

8,110 

5,400

341,600

ra.) 3,440 sec. -ft.; May 14 (7:30 a.m.) 3,170

sec ,^rt.; May

b Stage-discharge relation affected by Ice.
274 STANISLAUS RIVER BASIN

Melones Reservoir at Melones, Dam, Calif.

location.- Staff gaga and reference point, lat. 37°57'15", long. 120°30'45",, near center 

or sec. 11, T. IN., R. 13 E., at Melones Dam on Stanislaus River 0.1'mile downstream 

from Bear Creek. Dattan of gage is at mean sea level.

Drainage area.- 897 square miles.

Records available.- June 1927 to September 194|9.

Extremes.- Maximum contents observed 'during year, 112,600 acre-feet May 26 to June 19 

(elevation. 735.0 feet); minimum observed, 7,450 acre-feet Sept. 11, 14 (elevation, 

631.2 feet).

1927-49: Maximum contents observed, 115,200 acre-feet May 25. 26, June 1, 1943 

(elevation, 736.4 feet); minimum,'5,820 acrp-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) knd 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 irlto Oakdale and South San Joaquin Canals 

for irrigation.

Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1948 to Septenfcer 1949

Dag

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

8,050

8,320

8,380

8,430

3,500

8,680

8,890

9,000

9,220

9,260

9,340

9,570

9,870

10,400

10,700

10,900

11,100

11,200

11,500

11,700

11,900

12,100

12,600

12,700

12,360

12,900

13,200

13,500

13,700

14,100

14,400

Nov.

14,300

15,000

15,600

16,000

16,500

16,900

17,200

17,, 700

17,900

18,200

18,300

18,300

18,200

18,000

17,900

17,800

17I ,800

17,800

17.700

17,600

17,500

17,900

18,000

18,200

18 , 500

18,700

18,900

19,200

19,300

19,800

-

Deo.

20,000

20,100

20,500

20,800

21,100

' 21,500

21,800

21,900

22,200

22,600

22,900

23,200

23,700

24,100

24,400

24,900

24,300

24,600

25,000

25,600

25,800

26,000

26,300

-

27,100

27,100

-

28,500

29,300

29,800

30,100

Jan.

30,600

31,000

31,400

31,800-

32,000

32,200

32,400

32,700

33i,100

33,500

32,700

31,800

31,700

32,000

31,800

32,200

32,400

32,400

31,800

30,800

30,800

29,800

30,100

30b 600

29,400

28,200

27,100

26,300

26,200

26,200

26,600

Feb.

.

25,500

24,400

-

23,700

23,700

24,600

24,400

23,800

23,700

24,000

24,700

25,400

25,800

25,800

25,800

25,800

26,000

26,000

26,500

27,100

27,100

26,900

26,800

26,900

26,800

27,300

27,900

4.

-

-

Mar.

27,500

27,300

27,400

33,300

34,, 900

36,300

37,400

36,900

35,100

33,300

32,000

32,200

32,000

30,800

29,500

28,700

27,100

25,900

24,600

24,600

26,100

25,100

24,600

24,000

23,100

_

.

24,800

23,900

22,700

21,400

Apr.

20,800

19,800

21,200

22,200

21,200

20,500

20,100

19,800

_

18,400

19,300

20,800

22,500

24,900

27,700

30,600

33,400

37,900

42,1,00

46,200

50,500

56,800

63,800

71,900

50,200

87,700

93,600

95,000

94,600

94,600

-

Hay

94,500

94,800

94,800

94,600

94,500

95,000

96,200

99,600

100,400

100,100

100,100

102,100

104,200

105,300

103,000

103,300

104,000

104,000

102,800

101,400

100,400

100,100

102,300

105,800

111,100

112,600

112,600

112,600

112,600

112,600

112 f 600

June

112,600

112.600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

11 2 , 600

112,600

112,600

111,700

110,600

109,500

108,700

108,000

107,500

106,900

106,400

10S,800

104,900

104,000

-

July

103,100

102,100

101,100

100,100

97,700

96,700

95,300

93,800

92,500

91,000

89,700

88,200

86,800

85,400

33,900

82,400

80,900

79,500

77,800

76,100

74,500

72,900

71,200

69,500

68 , 000

66,400

64,900

61,700

60,100

Aug.

58,500

57,000

55,600

53,900

52,400

51,000

49,30O

47,500

45,900

44,300

42,900

41,500

40,000

38,600

36,900

35,500

34,200

32,700

31,200

29,600

28,200

26,400

24,800

23,400

22,300

21,100

19,700

18,500

17,200

15,800

14.600

Sept.

13,200

11,800

11,000

10,600

10,200

9,760

9>220

8,750

8,350

7,980

7,450

7,680

7,550

7,450

7,610

7,710

7,980

8,320

8,460

8,610

8,750

8,790

-

9,410

9,450

9,530

9,640

9,720

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31.... ..............

Calendar year 1948.... 

Jan. 31.......... ........

Mar. 31.. ................

Apr. 30.......... ........

Sept. 30........ ..........

Water year 1948-49. .-..

Elevation 

(feet)t

632.5 

648.0 

657.3 

671.5

-

667.1 

668.7 

659.9 

724.8 

735.0 

730.3 

700.8 

648.4 

657.6

-

Contents 

(acre-feet)

7,880 

14,400

19,800 

30,100

-

26,600 

27 , 90O 

21,400 

94,600- 

112,600 

104,000 

60,100 

14,600 

9,720

-

Change in contents 

during month 

(acre-feet)

+6,520 

+5,400 

+10,300

+16,700

-3,500 

+1,300 

-6,500 

+73,200 

+18,000 

-8,600 

-43,900 

-45,500 

-4,880

+1,840

t Elevation at 5 p.m.
STANISLAUS RIVER BASIN 275

Stanislaus River below Melones powerhouse, Calif.

Location.- Water-stage recorder, lat. 37°56'50", long. 120°31'45", near line between sees.

10 ana 15, T. 1 N., R. 13 E., 300 feet downstream from powerhouse, 0.5 mile upstream,

from Bear Gulch, and 1 mile downstream from Melones Dam. Altitude of gage, about 500

feet (from topographic map). 

Drainage area.- 898 square miles. 

Kecoras available.- January 1931 to September 1949. 

Average discharge.- 18 years, 1,475 second-feet. 

Extremes.- Maximum discharge during year, 10,600 second-feet May 14 (gage height, 12.32

reet); minimum, 3.1 second-feet Sept. 24, 25.

1931-49: 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. Flow regulated by Melones powerhouse, Melones Reservoir (see

preceding page), and several smaller reservoirs above station. Several diversions above

station. 

Cooperation.- Water-stage recorder graph, furnishe'd by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to May 13 May 14 to Sept. 30

3.4 5.1 3.9 71 5.1 645 3.3 1.3 4.0 97 7.0 2,450 

3.5 9.9 4.1 139 5.5 945 3.4 3.8 4.3 164 8.0 3,630 

3.6 17 4.3 301 6.0 1,390 3.5 8.8 4.4 244 9.0 4,950 

3.7 30 4.5 387 3.6 18 4.8 445 10.0 6,420 

3.8 48 4.8 449 3.7 29 5.2 700 11.0 8,080

Note.- Same as following table above 6.0 3! 9 69 e'.O l',Z30 

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17ie

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

134 

128 

126

133 

133

131 

123 

130 

120 

117

113 

88 

9.3 

98 

87

86 

87 

86 

86 

86

86 

93 

94 

18 

86

84 

81 

85 

87 

86 

13

Nov.

81 

84 

87 

90 

83

88 

14 

92 

90 

168

230 

234 

233 

224 

238

330 

229 

335 

336

340

30 

99 

94 

94 

88

67 

60 

11 

62 

62

Dec.

61 

58 

63 

67 

35

73 

341 

67 

73 

72

74 

21 

161 

73 

74

588 

186 

73 

33 

72

74 

164 

73 

72 

73

25 

76 

12 

75 

74 

71

Jan.

71 

23 

73 

125

101

7.9 

77 

71 

31 

563

603 

236 

69 

331 

69

19 

214 

500 

840 

321

710 

332 

19 

846 

777

727

637 

366 

140 

18 

322

Feb.

599 

756 

213 

778 

333

30 

665 

604 

308 

143

149 

76

31 

354 

255

318 

138 

337 

19 

.19

329 

336 

323 

335

444

21 

326 

507

Month

Oo to 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

nber. ...................................

lender year 1948

ter year 1948-49 .......................

Mar.

499 

509 

527 

523 

24

24 

667 

1,080 

1,430 

1,430

1,430 

1,430 

1,430 

1,430 

l,420i

1,410 

1,400 

1,390 

1,390 

329

1,120 

1,380 

1,380 

1,370 

1,360

193 

23 

1,080 

1,350 

1,340 

1,040

Apr.

1,340 

135 

33 

1,100 

1,350

1,350 

1,350 

1,560 

1,500 

1,400

1,340 

1,560 

1,790 

1,810 

1,830

1,880 

1,730 

1,540 

1,490 

1,500

1,510 

1,520

1,540 

1,560 

1,580

1,590 

3,510 

4,750 

4,450 

4,200

Second - 

f oo t -day s

2,861.3 

3,853

3,001

425,853.0

9,188 .". 

8,375 

31,307 

53,678 

125,480 

58,330 

31,630 

38,514 

5,528.0

361,744,3

Bay

4,060 

4,490 

4,500 

4,190 

3,960

3,370 

2,990 

3,380 

3,650 

3,510

3,680 

4,480 

5,260 

8,050 

6,330

4,870 

5,170 

5,060 

4,500 

3,940

2,870

3,540 

1,660 

1,660 

2,000

5,260 

5,380 

4,780 

3,850 

3,500 

3,540

Maximum

138 

240 

588

8,130

846 

778 

1,430 

4,750 

8,050 

3,180 

1,060 

978 

794

8,050

June

3,400 

3,310 

3,040 

3,010 

2,060

3,530 

2,860 

3,990 

3,180 

2,850

2,870 

3,840 

2,410 

3,380 

3,140

1,980 

1,830 

1,730 

1,710 

1,600

1,480 

1,350 

1,360 

1,180 

1,080

1,080 

1,080 

1,080 

1,070 

1,060

July

1,050 

1,050 

1,040 

1,050 

1,060

1,060 

1,050 

1,050 

1,040 

1,030

1,030 

1,030 

X.030 

1,020 

1,020

1,020 

1,020 

1,020 

1,010 

1,010

1,010 

1,010 

1,010

1,010 

1,000

994 

966 

986 

978 

978 

978

Aug.

978 

978 

978 

8970 

a970

8970 

a970 

a970 

a970 

a970

8950 

a 960 

a960 

a960 

8960

h946 

8950 

a 950 

a950 

a950

946 

963 

858 

826 

818

818 

818 

818 

802 

794 

794

Minimum Mean

9.3 92.3

11 128 

21 96.8

3.1 1,164

18 296 

19 299 

23 1,010 

33 1,789 

1,660 4,048 

1,060 1,944 

978 1,020 

794 920 

3.1 184

3.1 991

Sept.

794 

736 

397 

300 

307

311 

307 

302 

302 

303

12 

119 

112 

109 

89

88 

3.4 

3.4 

102 

96

124 

128 

101 

3.1 

3.1

100 

99 

95 

96 

96

Runoff in 

acre-feet

5,680 

7,640 

5,950

844,700

18,220 

16,610 

68,100 

106,500 

248,900 

115,700 

62,740 

56,560 

10,960

717,600

a No gage-height record; discharge computed from powerhouse records, 

h Computed from tape-gage reading.
276 STANISLAUS RIVER BASIN

Stanislaus River at Rlpon, Calif.

Location.- Water-stage recorder, lat. 37°43'50", long. 121°06<35", in SEir sec. 29, T. 2 

s., K. 8 E., at highway bridge 1 mile southeast of Rlpon ond 15 miles upstream from 

mouth. Datum of gage is at mean sea level, unadjusted (levels by Modesto Irrigation 

District).

Records available,- October 1940 to September 1949 in reports of Geological Survey. 'April 

194U to December 1947 in reports of Division of Water Resources, Department of Public 

Works, State of California.

Extremes.- Maximum discharge during year, 5,440 second-feet May 16 (gage height, 53.47 

i'eetj; minimum, 122 second-feet Aug. 5.

1940-49": Maximum discharge, 19,700 second-feet Mar. 11, 1943 (gage height, 59.83 

feet); minimum, that of Aug. 5, 1949.

Flood of Feb. 12, 1938, reached a stage of 64.4 feet, from floodmarks. Flood of 

Apr. 1, 1940, reached a stage of 61.1 feet, from floodmarks.

Remarks.- Records fair. Flow regulated by reservoirs and power plants above station (see 

"Remarks" 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. Four discharge 

measurements furnished by Bureau of Reclamation.

Discharge, In seoond-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

163 

156 

157 

154 

152

148 

148 

156 

158

168

190 

253 

301 

267 

248

226 

196 

185 

198 

200

212 

217 

219 

219 

£19

201 

187 

212 

212 

195 

204

Nov.

209 

193 

174 

187 

200

201 

203 

200 

184 

166

184 

234 

297 

321 

357

324 

306 

333 

344 

350

351 

350 

241 

211 

217

219 

216 

206 

200 

192

Dec.

177 

179 

188 

190 

193

190

187 

190 

294 

228

206 

203 

200 

190 

228

214 

323 

468 

346 

260

219 

201 

211 

253 

216

206 

206 

253 

262 

226 

209

Jan.

201 

196 

188 

176 

168

209 

216 

198 

188 

180

260 

562 

470 

350 

255

351 

231 

190 

339 

663

594 

658 

643 

512 

565

886 

886 

793 

565 

330 

240

Feb.

200 

208 

315 

350 258-

380 

283 

435 

484 

376

262 

217 

201 

195 

182

174 

166 

160 

157 

154

151 

148 

146 

146 

146

145 

166 

158

Month

Goto 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

148 

169 

204 

1,540 

1,240

579 

359 

296 

546 

939

1,060 

1,470 

1,760 

1,480 

1,560

1,550 

1,600 

1,540 

1,520 

1,680

1,070 

1,030 

1,530 

1,650 

1,570

1,500 

933 

540 

768 

1,370- 

1,430

Apr.

1,320 

1,230 

877 

510 

814

1,220 

954 

647 

584 

973

768 

510 

382

427 

488

506 

508 

468 

366 

299

312 

339 

342 

350 

312

299 

412 

1,220 

2,530 

2,630

Secondfoot -days

6,121 

7,370 

7,116

288,638

12,272 

6,363 

34,631 

22,597 

80,014 

26,347 

5,471 

4,971 

4,941

218,214

May

1,940 

2,470 

2,690 

2,830 

2,670

2,490 

2,040 

1,740 

1,860 

2,120

2,070 

2,130 

2,610 

3,230 

4,110

5,140 

3,880 

3,580 

3,610 

3,410

2,940 

2,060 

1,720 

906 

704

734 

2,720 

3,450 

3,310 

2,610 

2,240

Maximum

301 

357 

468

6,390

886 

484 

1,760 

5,14~0~ 2,630 

1,660 

206 

200 

220

5,140

June

1,660 

1,320 

1,260 

1,060 

961

90S 

1,160 

1,470 

1,590 

1,660

1,580 

1,570 

1,480 

1,200 

1,050

958 

819 

674 

586 

506

458 

378 

324 

292 

285

251 

248 

222 

214 

203

July

196 

192 

188 

206 

198

193 

193 

172 

195 

187

193 

185 

179 

198 

171

179 

174 

172 

187 

187

163 

163 

169 

168 

158

152 

142 

142 

162 

151 

156

Minimum

148 

166 

177

130

176 

145 

148 

299 

704 

203 

142 

135 

133

133

Aug.

154 

138 

139 

135 

135

145 

148 

164 

158 

158

145 

152 

169 

162 

182

171 

176 

154 

157 

169

164 

169 

157 

187 

157

171 

182 

200 

162 

15.1 

160

Mean

197 

246 

230

789

396 

227 

1,117 

753 

2,581 

'878 

176 

160 

165

598

Sept.

160 

180 

163 

157 

152

140 

133 

135 

145 

142

145 

151 

168 

164 

164

180 

172 

168 

171 

160

139 

156 

a!90 

a200 

a220

al80 

a!60 

hi 50 

190 

206

Runoff In 

acre-rfeet

12,140 

14,620 

14,110

572,500

24,340 

12,620 

68,690 

44,820 

158,700 

52,260 

10,850 

9,860 

9,800

432,800

a No gage-height record; discharge computed on basis of unpublished records for station near 

River-bank and at mouth.

h Computed from wire-weight gage reading.
STANISLAUS RIVER BASIN 277

North Fork Stanislaus River near A^ery, Calif.

Location.- Water-stage recorder, lat. 38°14', long. 1200 17', in sec. 35, T. 5 N., R..15 E.,

vuu reet 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.

neooras avaiiaDle.- July 1914 to September 1922, November 1928 to September 1949. 

Average discharger- 28 years (1914-22, 1929-49), 411 second-feet'. 

Extremes.- Maximum discharge during year, 3,470 second-feet May 14 (gage height, 7.12 feet);

minimum, 15 secon'd-feet Nov. 28.

1914-22, 1928=49: Maximum discharge 17,700 second-feet Dec. 11, 193? (gage height,

14.1 feet, from f 1'oodmarks), from rating curve extended above 3,400 second-feet on

basis of Avd 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 Oas & Electric Co.,

ODtainea in connection with a Federal Power Commissiion project.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge, in second-feet)

05 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 2,080 

10 38 3.5 446 7.0 3,300 

13 59 4.0 636

Discharge, in second-feet, 'water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

65 

52 

51 

56 

58

58 

57 

56 

56 

55

58 

59 

64 

61 55'

50 

48 

46 

46 46'

46 

48 

49 

46 

' 46

48 

53 

50 

51 

51 

45

Nov.

46 

56 

63 

53 

43

 30 

E2

19 

17 

31

44 

44 

43 

43 

42

43 

45

35 

28 

23

22 

21 

20 

20 

20

21 

20 

18

-21 

20

dec.

 20 

20 

23 

24 

26

27 

28 

33 

31 

30

^ 30 

30 

45 

39 

30

30 

34 

30 

32 

33

34 

30 

b27 

24 

34

37 

36 

30 

31 

31 

b30

Jan.

b30

, b25

Feb.

b25

37 

40 

45 

51 

56

51 

48 

52 

57 

61

72 

68 

74

Month

oeto 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

76 

*80 

91 

78 

74

71 

70 

66 

69 

74

89 

84 

80 

80 

85

118 

118 

124 

146 

130

133 

147 

128 

115 

112

114 

155 

176 

142 

129 

116

Apr.

121 

143 

154 

207 

271

320 

304 

290 

390 

509

610 

961 

1,060 

1,190 

1,200

1,290 

'1,430 

1,320 

1,320 

1,470

1,880 

2,140 

2,260 

2,340 

2,100

1,920 

1,940 

1,780 

1,680 

1,590

Secondfoot-days

1,630 

973 

939

133,990

850 

1,087 

3,270 

34,190 

48,788 

11,838 

1,405 

1,694 

1,565

108,229

Peak discharge (base, 2,000 sec. -ft.).- Apr. 24 (10 p.

May

1,700 

1,820 

1,700 

1,630 

1,660

1,640 

1,690 

1,630 

1,290 

1,420

2,050 

2,280 

2,22O 

3,020 

2,010

1,960 

1,870 

1,420 

1.J.90 

1,060

961 

1,050 

1,210 

1,440 

1,550

1,610 

1,500 

1,250 

1,090 

1,000 

867

Maximum

65 

63 

45

'3,150

74 

176 

2,340 

3,020 

784 

73 

68 

59

3,020

June

694 

662 

685 

680 

736

784 

7 SO 

726 

667 

636

611 

509 

440 

405 

364

325 

285 

248

226

190

172 

156 

142 

132 

123

117 

108 

97 

88 

80

July

73 

67 

63 

58 

55

50 

46 

42 

39 

36

33 

30 

28 

26 

24

22 

28 

28 

30 

42

48 

55 

55 

55 

54

53 

53 

51 

51 

54 

56

Aug.

56 

56 

55 

53 

53

56 

59 

60 

58 

58

58 

57 

56 

55 

54

53 

52 

51

50 

51

50 

49 

48 

45 

49

51 

47 

68 

65 

61 

60

Sept.

59 

58 

58 

57 

56

55 

55 

55 

54 

53

53 

53 

52 

51 

49

48 

48 

48 

47 

50

52 

52 

51 

50 

50

50 

49 

53 

51 

48

Minimum Mean acre-feet

45 52.6 3,230 

17 32.4 1,930 

20 30.3 1,860

17 366 265,800

27.4 1,690 

38.8 2,160 

66 105 6,490 

121 1,140 67,810 

867 1,574 96,770 

80 395 23,480 

22 45.3 2,790 

45 54.6 3,360 

47 52.2 3,100

17 297 214,700

m.) 3,190 sec. -ft.; May 1 (11 p.m.) 2,260

see. -ft.; May 14 (7:30 a.m.) 3,4^6 sec. -ft. 

* Winter discharge measurement made on this day. 

b Stage- discharge relation affected by Ice.

947808 O -. 91 - 19
278 STANISLAUS RIVER BASIN

South Fork Stanislaus River at Strawberry, Calif.

Location.- Water-stage recorder, lat. 38°12', long. 120°01', in SW* sec. 16, T. 4 N., R. 

 IB E., at Strawberry, 0.1 mile downstream from bridge on State Highway 108 and 0.5 mile

downstream from Herring Creek. Altitude of gage, about 5,350 feet (from topographic

map).

Drainage area.- 45.5 square miles. 

itecords available.- August 1938 to September 1949. October 1911 to January 1917 at site

i mile downstream.

Average discharge.- 11 years (1938-49), 120 second-feet. 

iflctrernes.- Maximum discharge during year, 1,010 second-feet May 14 (gage height, 5.12

reet); minimum, 2.7 second-feet Oct. 9-11, 16-18, Nov. 30 to Dec. 3.

1911-17, 1938-49: Maximum discharge, 1,870 second-feet June 4, 1945 (gage height,

6.3 feet), from rating curve extended above 1,OQO second-feet on basis of logarithmic

plotting; minimum, 1.3 second-feet Nov. 22, 23, 1946. 

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

good. Flow regulated by Strawberry Reservoir beginning in 1916 (capacity, 18,300 acrefeet). No diversion. 

Cooperation.- Water-stage recorder graph, furnished by Pacific Qas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1948-49 (gage height, in feet, 

and-discharge. In second-feet)

1.2 1.8 1.8 32 2.8 16O 3.8 410 

1.3 4.O 2.O 51 3.O 2OO 4.0 478 

1.4 7.0 2.2 74 3.2 244 4.4 634 

1.5 11 2.4 99 3.4 294 4.9 885 

1.6 17 2.6 126 3.6 348

Discharge, in second-feet, water year October 1948 to September1 1949

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.

43 

3.7 

3.4 

32 

58

59 

58 

43 

£.9 

£.7

34 

58 

58 

58 

39

5.8 

£.7 

42 

59 

62

64 

46 

28 

44 

58

64 

64 

64 

64 

64 

64

Nov.

64 

64 

64 

64 

45

7.4 

7.0 

45 

68 

67

66 

48 

8.2 

8.2 

40

62 

62 

61 

44 

7.8

7.8 

45 

64 

55 

25

16 

7.8 

7.8 

7.8 

5.2

Dec.

2.7 

2.7 

2.9 

28 

33

22 

32 

54 

42 

16

16 

16 

16 

23 

28

41 

44 

28 

28 

28

28 

28 

42 

59 

59

59 

59 

59 

58 

50 

33

Jan.

33 

33 

32 

32 

32

32 

3£ 

32 

3£ 

32

31 

31 

31 

31 

32

32 

£1 

7.4 

7.0 

6.7

6.7 

6.7 

6.7 

6.7 

6.7

6.7 

6.7 

6.7 

6.7 

6.7 

6.7

Feb.

6.7 

6.7 

6.7 

6.7 

6.7

7.0 

7.0 

7.0 

7.0 

7.0

7.0 

7.0 

7.0 

7.0 

6.7

6.7 

.O 

.8 

.8 

.8

.8 

.8 

.8 

.8 

7.8

7.8 

7.8 

7.8

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

uapy ... .

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

ter year 1948-49 .......................

Mar.

7.8 

7.8 

a7.8 

H7.8 

a7.8

a7.8 

a7.8 

a7.8 

7.8 

7.8

7.8 

7.8 

8.2 

8.2 

8.2

8.2 

8.6 

8.6 

8.6 

8.6

17 

.27 

27 

27 

27

28 

28 

29 

£9 

29 

28

Apr.

29 

29 

29 

30 

31

33 

38 

43 

45 

50

55 

67 

79 

92 

103

126 

134 

128 

1£3 

132

168 

202 

229 

256 

£37

218 

2O4 

155 

139 

137

Secondfoot-days

1,348.2 

1,144.0 

1,037.3

38,954.9

625.8 

202.7 

456.8 

3,341 

13,210 

6,760 

359.0 

987.9 

1,511.4

30,984.1

May

160 

174 

155 

155 

209

410 

489 

454 

252 

260

531 

7£O 

770 

841 

471

529 

572 

354 

315 

244

218 

307 

439 

584 

657

700 

667 

533 

461 

342 

237

Maximum

64 

68 

59

948

33 

7.8 

29 

256 

841 

507 

30 

59 

73

841

June

147 

142 

20O 

a350 

aSOO

507 

464 

461 

421 

451

437 

354 

320 

315 

268

231 

194 

158 

US 

92

90 

86 

80 

70 

67

62 

55 

46 

39 

35

July

30 

27 

24 

23 

21

19 

18 

16 

14 

13

12 

9.8 

9.4 

9.0 

9.0

8.6 

8.2 

7.8 

6.7 

6.7

6.4 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

5.8 

5.8

Aug.

11 

22 

32 

41 

34

6.7 

6.4 

38 

59 

59

59 

34 

5.8 

5.8 

37

59 

59 

59 

36 

4.6

4.3 

4 3 

37 

59 

59

36 

7.0 

7.0 

7.0 

40 

59

Sept.

59 

36 

7.0 

6.7 

6.7

38 

61 

61 

38 

7.0

7.0 

710 

38 

60 

6O

60 

60 

60 

60 

60

63 

73 

73 

73 

73

73 

73 

73 

73 

72

Mini, Mean Hunoffjn

2.7 43.5 2,670 

5.£ 38.1 2,270 

2.7 33.5 2,060

2.7 106 77,260

6.7 20.2 1,240 

6.7 7.24 402 

7.8 14.7 906 

29 111 6,630 

155 426 26,200 

55 225 13,410 

5.8 11.6 712 

4.3 31.9 1,960 

6.7 50.4 3,000

2.7 84.9 61,460

a No gsge-height record; discharge interpolated or computed on besia of recorded range in stage 

and weather records.

h Computed from staff-gage reeding.
STANISLAUS RIVER BASIN 279

South Pork Stanislaus River near Long Barn, Calif.

Location.- Water-stage recorder and masonry control, lat. 38°05', long. ISO 0 !! 1 , in sec. 

SJ5, T. 3 N., R. 16 E., 600 feet downstream from Lyons Dam, 2. miles west of Long Barn, 

and 14 miles northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic 

map).

Drainage area.- 67.2 square miles.

Records available.- November 1937 to September 1949.

Average aischargeT- 11 years (1938-49), 81.9 second-feet.

extremes.- Maximum discharge during year, 844 second-feet May 14 (gage height, 4.79 feet); 

minimum, 0.4 second-foot Mar. 15, 16.

1937-49: Maximum discharge, 2,070 second-feet June 2, 1938 (gage height, 7.14 feet), 

from rating curve extended above 1,400 second-feet; no flow at times during 1938-39, 

1946.

Remarks.- Records excellent above 5 second-feet, poor below. Plow regulated by Lyons and 

strawberry Reservoirs since beginning of record (total usable cap'aclty, 23,800 acrefeet). Tuolumne Canal (see p. 281) diverts at Lyons Dam; Philadelphia Canal (see 

following page) diverts.12 miles above station into basin of Middle Fork Stanislaus 

River.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating tables, water year 1948-49, except periods of indefinite stage-discharge relation

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Dec. 2, Aug. 15-18, 22-25, 

Aug. 27 to Sept. I, Sept. 8-15)

Oct. 1 to Dec. 1 Dec. 2 to Sept. 30

-0.02 1.0 0.02 1.5 0.0 0.2 1.0 43 2.6 244 

0.00 1.2 .04 1.7 .1 1.0 1.2 58 2.9 298 

.01 1.3 .06 2.1 .2 3.0 1.4 77 3.2 354 

.4 9.0 1.7 109 3.5 414 

.6 18 - 2.0 148 4.0 540 

.8 29 2.3 194 4.6 760

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.6 

1.9 

1.9 

2.1 

1.9

1.9 

1,6 

1.5 

1.5 

1.5

1.5 

1.5

e.9 

e.8 

e.5

e.9 

el. 5 

el. 5 

e.7 

el. 5

el.o 

e.8 

1.5 

1.3

1.5

1.5 

2.1 

2.1 

1.6 

1.9 

1.9

Nov.

1.5 

1.2 

1.2 

el.O 

el.O

e.9 

e.8

1.0

1.3 

1.1

1.3 

1.3

1.3 

1.5 

1.5 

1.3 

1.2

e.9 

e.8

1.1 

1.5 

1.5

1.5 

1.5 

1.3 

1.3 

1.2

Dec.

1.2 

.5 

1.2 

1.6 

1.8

2.0 

1.6 

1.2

1.2 

1.6

1.8 

1.8

1.6

1.4 

1.0 

1.0 

1.2 

1.2

1.2 

1.0 

1.0 

1.2 

1.6

1.4 

1.4 

1.6 

1.4 

1.2 

.8

Jan.

.9 

1.0

1.0 

1.0 

1.0

1.2 

al.2 

al.2

al.3 

al.3

1.4 

1.2

1.0 

.9 

.8 

.8 

.8

1.4 

1.4 

1.6 

1.8 

1.6

1.4 

1.4 

1.4 

1.4 

1.4 

1.4

Feb.

1.6 

1.6 

1.4 

1.4 

al.4

al.4 

hi. 4 

hi. 4

hi. 4 

hi. 4

al.4 

hi. 4 

hi. 4

hi. 4 

hi. 4 

1.4 

1.6 

1.6

1.8 

2.0 

2.0 

1.8 

1.8

1.6 

1.6 

1.4

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1943 

ai*y

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

ter year 1948-49 .......................

Mar.

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4

1.2

1.0 

.9 

.8 

e.6 

e.4

e.4 

e.7 

.8 

.9 

.9

1.2 

1.4 

1.4 

1.2 

1.4

1.2 

.9 

2.4 

2.6 

1.8 

1.4

Apr.

1.4 

1.4 

1.6 

1.8 

2.0

1.4 

1.4 

.9

e.6

.7 

29.0

110 

122 

130

150 

176 

154 

131 

126

145 

188 

220 

231 

233

194 

189 

133 

107 

145

Secondfoot -day s

45.9 

37.0 

41.3

23,761.1

38.3 

42.8 

38.1 

2,926.7 

11,661 

4,520.0 

28.5 

27.1 

21.3

19,428.0

May

151 

184 

168 

147 

162

321 

410 

410 

276 

266

366 

564 

678 

747 

467

404 

512 

354 

266 

226

163 

199 

338 

483 

558

626 

667 

526 

432 

344 

246

Maximum

2.1 

1.7 

2.0

871

1.8 

2.0 

2.6 

233 

747 

512 

1.8 

1.4 

.8

747

June

101 

42 

30 

29 

366

512 

436 

414 

394 

269

390 

311 

269 

260 

213

160 

131 

100 

56 

18

9.1 

3.8 

1.0 

e.6 

e.6

e.7 

.8 

.8 

.8 

.8

July

.7 

.7 

.8 

.7 

.8

.8 

1.8 

.8 

.8 

.7

.9

1.2 

1.0 

1.0 

1.2

1.2 

1.2 

1.2 

1.0 

.9

.7 

.8 

.8 

.7 

.8

1.2 

1.2 

.8 

.7 

.7 

e.7

Aug.

.8 

.8 

1.2 

1.0 

1.0

.9 

,9 

.9 

.9 

.9

.9 

.9 

.9 

.9 

.9

1.4 

1.4 

1.2 

e.7 

e.6

e.6 

.7 

.9 

.8 

.8

e.7 

.7 

.7 

.7 

.7 

.7

Minimum Mean

0.5 1.48 

.8 1.23 

.5 1.33

.1 64.9

.8 1.24 

1.4 1.53 

.4 1.23 

.5 97.6 

147 376 

.6 151 

.7 .92 

.6 .87 

.6 .71

.4 53.2

Sept.

.7 

e.6 

e.6 

e.6

e.7

e.7 

e.7 

.7 

.7 

,7

.8 

.8 

.7 

.8 

.7

.7 

.8 

.8 

.8 

.8

.8 

e.7 

e.7 

e.6 

e.6

e.7

e.7

.7 

.7 

.7

Runoff In 

acre-feet

91 

73 

82

i 47,120

76 

85 

76 

.5,810 

23,130 

8,970 

57 

54 

42

38,550

a No gage-height record) discharge interpolated.

e Stage-discharge relation indefinite; discharge computed on basis of recorded trend of gage height.

h Computed from tape-gage reading.
280 STANISLAUS RIVER BASIN

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 1949.

Average discharge.- 10 years, 43.8 second-feet.

Extremes.- Maximum daily discharge during year, 59 second-feet Oct. 21; no flow Jan. 11 to

1939-49: Maximum daily discharge, 64 second-feet Dec. 11, 1941; no flow at times 

during each year except 1943, 1946, 1947.

Remarks.- Records excellent except those below 5 second-feet, which are good. Canal

diverts from right bank of South Pork Stanislaus River for power development in Spring 

Gap power plant of Pacific Gas & Electric Co.; tailrace empties into Middle Fork 

Stanislaus River above station at Sand Bar Flat.

Cooperatlgn..- Water-^tage recorder record, furnished by Pacific Gas & Electric Co., 

oDtained in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

45 

2.8

2.3 

32 

58

58 

58 

47 

2,6 

2.2

30 

57 

58 

57 

46

5.3 

2.6 

31 

58 

58

59 

46

1.7 

1.7 

32

58 

58 

58 

35 

1.5 

1.5

Nov.

38 

58 

58 

58 

38

1.0 

1.0 

20 

42 

58

58 

43

1.6 

.4

31

58 

58

58 

39

1.7

1.7 

25 

58 

48 

1.3

1.3 

1.3 

1.3 

1.3 

1.5

Dec.

1.6 

»1.7 

1.8 

19 

34

26 

26 

51 

46 

16

16 

16 

17 

20 

27

38 

46 

28 

28 

28

27 

28 

28 

28 

28

28 

28 

28 

27 23 ' 

19

Jan.

19 

19 

b!9

b!9

b!9

b8

b!2 

28 

32 

b21

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

o

0.

0 

0 

0 

0

0 

0

Feb.

Month

Dcto 

love 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

18 

39

41 

46 

50 

54

58

58

52 

50 

50 

50

50 

44 

55 

57 

57

56 

55 

55 

55 

55

54 

54 

54

47 

22

Seeondfoot-days

1,063.2 

861-4 

779.1

14,266.7

196 

0 

0 

1,336 

1,481 

1,603 

354.6 

911.3 

1,236.7

9,822.3!

May

23 

23 

16 

25 

26

33

42 

49

50 

52

54 

54 

55 

56

54

58 

55 

49 

52 

54

55 

56 

55 

56 

55

55 

54 

54 

55 

54 

52

Maximum

59 

58 

51

61

32 

0 

0 

58 

58 

56 

33 

58 

57

59

June

54 

55 

55 

55 

54

53 

54 

54 

54

55

54 

54 

55 

56 

54

54 

54

55 

55 

55

56 

56 

55 

55 

55

55 

54 

49 

42

37

July

33 

28 

25 

24 

22

20ie

17 

16 

14

13 

11 

9.1 

8.5 

8.2

8.0 

8.0 

7.5 

2.7 

3.6

6.0 

6.0 

5.8 

5.8 

5.6

5.3 

5.3 

4.9 

4.5 

4.3 

4.5

Minimum

1.5 

.4 

1.6

0

0 

0 

0 

0 

16 

37 

2.7 

2.2 

2.8

0

Aug.

8.3 

21 

32 

40 

38

4.2 

3.5 

29 

56 

56

56 

36 

3.2 

3.2 

28

57 

57 

57 

39 

2.2

2.2 

2.2 

30 

58 

58

38

3.1 

3.1 

3.1 

' 30 

57

Mean

34.3 

28.7 

25.1

39.0

6.3 

0 

0 

44.5 

47.8 

53.4 

11.4 

29.4 

41.2

26.9

Sept.

57 

37 

3.1 

3.1 

3.1

28 

57 

57 

37 

2.8

2.8 

2.8 

28 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

54

54 

54 

54 

54 

54

Runoff In 

acre-feet

2,110 

1,710 

1,550

28,300

389 

0 

0 

2,650 

2,940 

3,180 

703 

1,810 

2,450

19,490

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
STANISLAUS RIVER BASIN 281

Tuolumne Canal near Long Barn, Calif.

Location.- Water-stage ,r_e_cfirder and concrete control., lat. 38°05'-, long. 120°11'., in sec. 

25, T. 3 N., R. 16 E., 200 feet downstream from intake, 250 feat downstream from Lyons 

Reservoir on South Pork Stanislaus River, 2 miles west of Long Barn, and 14 miles northeast of Sonora. Altitude df gage, about 4,100 feet (grom topographic map).

Records available.- October 1937 to September 1949. 

Average discharge.- 12 years, 21.8 second-feet.

Extremes.- Maximum daily discharge during year, 45 second-feet June 16; minimum daily, 

a.b second-feet Feb. 22.

1937-49: 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 Pork Stanislaus River 

ror power and,domestic supply in vicinity of Sonora.

Cooperation.- Water-stage recorder graph, furnished by Pao-ific Gas & Electric Co. obtained 

in connection with a Federal Power Commissfon project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

^ &

9

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

21 

20 

22 

23

23 

22 

22 

22 

22

22 

16 

13 

13 

 13

12

12 

13 

12 

11

11 

11 

11 

11 

12

12 

11 

12 

11 

12 

12

Nov.

12 

12

11 

11 

11

11 

10 

11 

12 

12

 12 

12 

12 

12 

11

10 

10 

10 

10 

10

10 

Hi 

10 

10 

11

11 

11 

10 

10 

10

Dec.

10 

11 

10 

9.9 

13

13 

11

11 

11 

11

11 

10 

12 

18 

19

19 

19 

13 

11 

11

10 

12 

15 

15 

15

16 

16 

17 

16 

12 

10

Jan.

12 

16 

16 

16 

16

a!6 

a!6 

a!6 

a!6 

a!5

a!5 

a!5 

a!5 

al5 

15

15 

16 

16 

16 

16

18 

19 

19 

19 

18

18 

19 

19 

19 

19 

18

Feb.

18 

10 

18 

hlS 

alS

a!8 

h!8 

hlS 

hlS 

hlS

h!8 

alS 

a!8 

'his 

hlS

hlS 

hlS 

IS 

18 

18

13 

2.5 

8.9 

9.2 

8.9

9.2 

9.2 

9.2

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

ber. ....................................

lender year 1948

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

ter year 1948-49 .......................

Mar.

8.9 

11 

12 

12 

12

12 

12 

13 

13 

13

15 

17 

IS 

20 

24

26 

26 

26 

26 

26

27 

28 

29 

29 

29

29

30 

28 

28 

29 

29

Apr.

28 

28 

28 

28 

28

30 

30 

30 

30 

30

30 

31 

27 

36 

37

36 

36 

36 

36 

36

36 

36 

35 

35 

35

35

35 

35 

35 

35

Seeondfoot-days

481 

326 

407.9

7,441.8

514 

422.1 

657.9 

983 

810 

966.4 

938 

1,015 

806

8,327.3

May

35 

36 

35 

35 

35

33 

31 

29 

27 

22

22 

26

28 

28 

27

29 

31 

31 

32 

31

30 

31 

32

15 

12

14 

13 

16 

15 

15 

14

Maximum

23. 

12 

19

54

19 

18 

30 

37 

36 

45 

35 

35 

30

45

June

9.5

11 

11 

15 

15

9.9 

18 

35 

39 

41

44 

44 

44 

44 

44

45 

44 

42 

42 

44

36 

34 

36 

32

31

32 

31 

31 

31 

31

Minimum

July

11 

10 

9.9

2.9

12 

2.5 

8.9 

27 

12 

9.5 

25 

29 

25

2.5

31 

31 

31 

31 

31

31 

30 

29 

29 

29

29

28 

28 

28 

28

28 

28 

28 

28 

28

25 

30 

32 

32 

32

31 

34 

35 

35 

34 

34

Aug.

34 

34 

35 

35 

34

34 

34 

35 

35 

35

35 

h35 

h35 

h35 

h35

h35 

h35 

h35 

30 

29

29

29 

30

31 

31

31 

30 

30 

30 

30 

30

Mean

15.5 

10.9 

13.2

20.3

16.6 

15.1 

21.2 

32.8 

26.1 

32.2 

30.3 

32.7 

26.9

22.8

Sept.

30 

30 

30 

30 

29

29 

29 

29 

29 

29

29 

27 

26 

26 

26

26 

25 

25 

25 

26

26 

25 

25 

25 

25

25 

25 

25 

25 

25

Runoff in 

acre-feet

954 

647 

809

14,760

1,020 

837 

1,300 

1,950 

1,610 

1,920 

1,860 

2,010 

1,600

16,520

a Ho gage-height record; discharge interpolated, 

h Computed from staff-gage reading.
282 STANISLAUS RWER BASIN

South San Joaquin Canal near Knights Ferry, Calif.

Location.- Water-stage recorder,and concrete control lat. 37°51'20" long. 1200 38'16", in 

sec. 15, T. 1 S., R. 12 E., 0.8 mile downstream from head gate at Goodwin Dam and 4 

miles upstream from Knights Ferry. Altitude of gage, about 345 feet (from topographic 

map).

Records available.- May 1914 to September 1949.

Average discharge.- 30 years (1914-30, 1931-32, 1936-49), 369 second-feet.

Extremes.- Maximum daily discharge during year, 1,060 second-feet June 17: no flow Jan. 17, 

24-BY', Mar. 14-18, Mar. 26 to Apr. 3.

1914-49: Maximum daily discharge, 1,070 second-feet July 1-3, 1921, June 25, 26, 29, 

30; July 1-3, 1948; no flow at times each year.

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

canal diverts from right bank of Stanislaus River at Goodwin Dam for irrigation in Oakdale and South San Joaquin irrigation districts.

Discharge, In seo.ond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

80 

76 

75 

75 

73

64 

59 

60 

60 

26

5.8 

5.1 

4.8 

3.0 

4.4

4.4 

3.9 

3.7 

4.2 

2.6

4.2 

3-9 

3.9 

3.9

3.7

2.1 

1.3 

1.3 

1.3 

1.3 

1.3

Nov.

1.3 

1.3 

1.3 

al.3 

al.3

al.5 

a.Z.0 

S.Z.Q 

al.5 

al.2

al.2

1.4 

1.4 

3.8 

2.6

2.3 

2.1 

2.1 

2.1 

2.0

2.3

1.7 

al.3 

al.3 

al.3

al.3 

al.2 

al.2 

al.2 

al.2

Dec.

al.2 

al.2

1.3 

1.3

1.3

1.3 

1.1 

1.0 

1.0 

1.0

1.3 

2.6 

1.3 

1.3 

1.3

1.3 

1.3 

1.0 

1.7 

1.4

1.3 

1.4 

1.4 

3.1 

4.4

3.4 

1.1 

.7 

.6 

.4 

.3

Jan.

2.1 

3.2 

.4 

.6 

.4

.6 

.6 

1.1 

2.7 

.3

.1 

.1 

.3 

.3 

2.8

3.3 

0 

.7 

1.3 

1.1

.7 

.4 

.3 

0 

0

0 

0 

48 

161 

155 

204

Feb.

322 

370 

337 

284 

302

261 

337 

368 

303 

288

235 

196 

107 

85 

253

261 

230 

247 

227 

38

137 

312 

329 

344 

392

262 

197 

312

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MA v

June 

July 

Augu 

Sept

Wa

lendar year 1943

Mar.

438 

438 

441 

455

361

167 

275 

497 

536 

497

475 

449 

229 

0 

0

0 

0 

0 

2.4 

4.4

8.8 

5.1 

3.4 

14 

11

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

2.3 

114

450

805 

664 

219 

455

720 

906 

1,020 

1,030 

1,030

1,030 

1,030 

1,000 

967 

977

994 

1,020 

1,030 

1,030 

1,040

1,030 

1,000 

1,020 

1,030 

1,030

Secondfoot -days

718.1 

48.7 

44.3

139..203.5

591.4 

7,336 

5,307.1 

22,643.3 

32,235 

28,197 

21,109 

19,447 

3,087.7

140,764.6

May

1,030 

1,040 

1,040 

1,050 

1,050

1,050 

1,050 

1,050 

1,050 

1,050

1,050 

1,050 

1,050 

1,030 

1,040

1,050 

1,050 

1,050 

995 

1,030

1,030 

1,020 

1,020 

1,040 

1,050

1,040 

1,040 

1,040 

1,040 

1,040 

1,020

Maximum

80 

2.8 

4.4

1,070

204 

392 

536 

1,040 

1,050 

1,060 

699 

664 

549

1,060

June

987 

990 

993 

1,000 

1,010

1,000 

995 

997 

991 

1,000

1,030 

1,050 

1,050 

1,050 

1,050

1,050 

1,060 

1,050 

1,050 

1,040

988 

889 

829

774 

715

714 

713 

714 

711 

707

July

699 

696 

694 

694 

697

699 

697 

694 

693 

693

690 

690 

689 

689 

685

683 

682 

679 

678 

678

676 

673 

671 

669 

666

665

662 

659

657 

655 

657

Minimum

1.3 

1.2 

.3

0

0 

38 

0 

0 

995 

707 

655 

543 

2.1

0

Aug.

654

652 

651 

652 

655

664 

664

661 

657 

655

657 

657 

652 

651 

647

647 

647 

648 

651 

650

652 

661 

601 

574 

571

570 

561 

552 

547 

543 

543

Mean

23.2 

1.62 

1.43

380

19.1 

262 

171 

755 

1,040 

940 

681 

627 

103

366

Sept.

549 

547 

235 

185 

196

209 

220 

£28 

218 

210

122 

4.4 

6.2 

9.2

9.7

9.7 

9.2 

8.8 

9.2 

8.8

9.7 

12 

12 

12 

12

12 

9.6 

7.2 

4.9 

2.1

Runoff In 

acre-feet

1,420 

97 

38

276,100

1,170 

14,550 

10,530 

44,910 

63,940 

55,930 

41,870 

37,570 

6,120

279,200

a No gage-height record; 

from canal tender.

discharge estimated on basis of recorded range In stage and statements
STANISLAUS RIVER BASIN 283

Oakdale Canal near Knights Perry, Calif.

Location.- Water-stage recorder, lat. 37°51'30", long. 120°38'00", in SE£ sec. 10, T. IS., 

H. 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). Prior to 

Apr. 4, 1949, at datum 0.18 foot higher.

Records available.- May 1914 to September 1949.

Average discharge.- 31 years (1914-32, 1936-49), 117 second-feet.

Extremes.- Maximum daily discharge during year, 460 second-feet Apr. 23, June 5, 14, 17, 19; 

no flow during several months.

1914-19: Maximum daily discharge, 460 second-feet Apr. 23, June 5, 14, 17, 19, 1949; 

no flow during periods in each year.

Remarks.- Records good. Canal diverts water from left bank of Stanislaus River at Goodwin 

Dam for irrigation in Oakdale irrigation district.

Cooperation.- Gage-height record and 14 discharge measurements furnished by Oakdale Irrigation District.

Discharge, in second-feet, water year October 1943 to September 1949

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

39 

43 

44 

46

44

48 

56 

58 

56 

36

16 

14 

9.4

O 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec.

0 

0 

0

11

4.3

0 

0 

O

0 

0

6.0 

4.8

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan. Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1

0 

0 

0 

0

0 

0 

0

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

az*y

u&ry

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

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

50 

100

212 

267 

325 

390 

419

425 

433 

437 

438 

439

439 

448 

449 

452 

453

455 

455 

460 

457 

454

80 

455 

455 

456 

455

Secondfoot -day 8

509.4 

0 

26.1

49,869.9

0 

.1 

0 

10,358 

13,708 

12,760 

9,609 

8,454 

1,535.9

56,960.5

May

455 

459 

458 

452 

458

456 

459 

457 

457 

458

459 

459 

458 

447 

451

458 

458 

436 

227 

303

427 

449 

453 

458 

458

455 

457 

456 

456 

459 

455

Maximum

58 

0 

11

410

0 

.1 

0 

460 

459 

460 

324 

293 

237

460

June

455 

455 

459 459 ' 

460

459 

455 

457 

453 

456

457 

458 

459 

460 

459

459 

460 

459 

460 

456

440 

421 

389 

370 

333

331 

332 

331 

330 

328

July

324 

322 

320 

321 

322

324 

322 

321 

320 

319

316 

315 

312 

311 

310

309 

308 

307 

307 

306

305 

304 

303 

302 

301

300 

299 

298 

295 

293 

293

Minimum

0 

0 

0

0

0 

0 

0 

0 

227 

328 

293 

227 

0

0

Aug.

291 

289 

289 

290 

291

293 

293 

292 

290 

290

289 

289 

286 

285 

284

283 

280 

280 

280 

278

281 

283 

249 

233 

230

227 

232 

242 

246 

244 

245

Mean

16.4 

0 

.84

136

0 

.003 

0 

345 

442 

425 

310 

273 

51.3

156

Sept.

237 

230 

99 

94 

98

96 

90 

82 

89 

94

75 

16 

35 

53 

52

52 

34 

9.9 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff In 

acre-feet

1,010 

0 

52

98,910

0 

.2 

0 

20,540 

27,190 

25,310 

19,060 

16,770 

3,050

113,000
284 CALAVERAS RIVER BASIN

Calaveras River at Jenny Lind, Calif.

Location.- Water-stage recorder, lat. 38°05', long. 120°52', In SWi sec. 22, T. 3 N., R.

 10 E., at bridge on Milton Road, 0.2 mile south of Jenny Lind and 6.5 miles downstream 

from Cosgrove Creek. Altitude of gage, about 220 feet (from topographic map).

Drainage area.- 395 square miles.

Records available.- January 1907 to September 1949.

Average discharge.- 40 years (1908-23, 1924-49), 244 second-feet.

Extreme s. - Maximum discharge during year, 1,310 second-feet Mar. 4 (gage height, 5.65 feei); 

no now during several months.

1907-49: Maximum gage height observed, 21.0 feet, present datum, Jan. 31, 1911, discharge uncertain; no flow during late summers of most years.

Remarks.- Records good. Flow regulated by Hogan Reservoir at Stockton flood-control dam

 beginning in 1930 (usuable capacity, 75,000 acre-feet), by Bingham reservoir (capacity, 

775 acre-feet) on North Fork Calaveras River, and by some seepage of North Fork Stanislaus River water from diversion canals and reservoirs; normally not over 1.5 secondfeet.

Rating table, water year 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Backwater corrections applied Apr. 18 to'July 12)

1.6

1.7

1.8

1.9

2.0

0

1.0

3.0

6.5

12

2.1

2.2

2.3

2.4

2.5

2.7 

2.9 

3.1 

3.4 

3.7

106

155

209

300

402

4.0 

. 4.4 

4.8 

5.2 

5.6

518

680

860

1,060

1,280

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1.8 

6.2

8.7 

9.2 

9.2 

8.7 

9.8

10 

10 

1111 11

all 

all 

all 

all 

all

Dec.

all 

11 

12 

13 

15

16 

20 

28 

34 

30

26 

23 

23 

27 

37

45 

46 

46 

53 

53

45 

38 

33 

30 

29

29 

56 

212 

148 

89 

63

Month

Octo 

Hove

Deee

Ca

Janu 

Pebr 

Marc 

Aprl 

May. 

June 

July 

Augu 

Sept

wa

Jan.

53 

55

100 

85 

61

46 

43 

40 

38 

36

33 

29 

28 

28 

28

29 

27 

26 

26 

32

79 

128 

268 

198 

123

83 

66 

60 

53 

52 

50

Feb.

49 

48 

49 

56 

160

241 

460 

437 

212 

148

163 

370 

241 

166 

128

111 

102 

123 

158 

163

166 

132 

46 

46 

48

61 

76 

58

lendar year 1948 .......................

ter year 1948-49 .......................

Mar.

31 

34 

517 

1,190 

1,270

1,120 

955 

806 

655 

530

558 

976 

1,180 

1,170 

1,030

905 

788 

651 

637 

634

614 

582 

604 

716 

606

562 

502 

432 

359 

335 

313

Apr.

287 

268 

247 

232 

a225

a220 

218 

V>7 

66 

66

66 

56 

44 

39 

39

39 

38 

36 

36 

67

120 

125 

125 

123 

123

125 

125 

123 

120 

118

Secondfoot-days

0 

161.6 

1,341

41,560.5

2,003 

4,218 

21,262 

3,673 

2,510 

4,803 

174.7 

0 

0

40,146.3

May

118 

113 

108 

106 

104

100 

98 

96 

91 

91

89 

85 

81 

79 

76

76 

74 

72 

70 

70

70 

66 

64 

63 

60

58 

58 

58 

74 

72 

70

Maximum

0 

H 

212

2,850

268 

460 

1,270 

287 

1 118 

815 

44 

0 

0

1,270

June

66 

64 

63 

61 

61

63 

61 

56 

56 

55

49 

48 

50 

48 

45

44 

42 

40 

40 

38

50 

93 

558 

815 

716

606 

467 

244 

130 

74

Minimum

July

44 

31 

22 

20 

16

13 

11 

8.7 

5.1 

1.4

2.0 

.5

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

11

0

26 

46 

31 

36 

58 

38 

0 

0 

0

0

Aug.

Mean

0 

5.39 

43.3

114

64.6 

151 

686 

122 

81.0 

160 

5.64 

0 

0

110

Sept.

Runoff In 

acre-feet

0 

321 

2,660

82,430

3,970 

8,370 

42,170 

7,290 

4,980 

9,530 

347 

0 

0

79,640

a No gage-height record; discharge computed on basis of recorded range In stage and by Interpolation.
CALAVERAS RIVER BASIN 285

Cosgrove Creek near Valley Springs, Calif.

Location.- Water-stage recorder, lat. 38°09', long. 120°50', in SE£ sec. 35, T. 4 N., R. 

1U &., 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 1949.

Average discharge.- 20 years, 7.26 second-feet.

Extremes.- Maximum discharge during year, 700 second-feet Mar. 3 (gage height, 5.1? feet); 

no riow for several months.

1929-49: Maximum discharge, 3,180 second-feet Dec. 21, 1945 (gage height, 8.38 

feet), from rating curve extended above 1,400 second-feet on basis of velocity-area 

studies and logarithmic plotting; no flow for several months each year.

Remarks.- Records good. No storage or diversion above station.

Discharge, In second-feet, water year October 1948 to September 1949

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. 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

.1

0 

0 

0

0

Jan.

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

12 

16 

6.6 

2.8

1.6 

1.1 

.8 

.6 

.5 

.4

Feb.

0.4

.3 

.5 

1.2 

18

6.3 

20 

6.3 

3.0 

2.2

6.3 

5.0 

2.5

1.9 

1.5

1.4

1.1 

1.1 

1.0 

.9

.e

.7 

.8 1.1

1.5

16 

15 

5.3

Month

Oo to 

Hove 

Decs

Ca

Janu 

Febr 

Mare 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

3.4 

15 

333 

78 

43

26 

15 

24 

13

14

39 

111 

31 

17 

12

40 

15 

9.5 

64 

36

17 

33 

71 

76 

21

14 

11 

8.6 

5.6 

5.0 

4.5

Apr.

3.8 

3.4 

3.0 

2.8 

2.3

2.2 

2.2

2.0 

1.9 

1.9

1.9 

1.6 

1.5 

1.4 

1.4

1.2 

1.1 

1.0 

.9 

.8

.6 

.7 

.5

.4 

.4

.3 

.2 

.2 

.2 

.2

Secondfoot -days

0 

0

.1

1,250.0

42.4 

122.1 

1,205.6 

42.2 

1.6 

0 

0 

0 

0

1,414.0

May

0.1 

.1 

.1 

.1 

.1

.1 

.1

.1 

.1 

.1

0 

0

o .

.1 .1

.1 .1

0

.1 .1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

.1

263

16 

20 

333 

5.8 

.1 

0 

0 

0 

0

333

June July

Minimum

0 

0 

0

0

0 

.3 

3.4 

.2 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.005

3.42

1.37 

4.36 

38.9 

1.41 

.05 

0 

0 

0 

0

3.87|

Sept.

Hunoff In 

acre-feet

0 

0 

.2

2,480

84 

242 

2,390 

84 

3.2 

0 

0 

0 

0

- 2,800

Peak dlaoharge (base. 310 gee.-ft.).- Mar. 3 (4 p.m.) 700 aeo.-ft.
286 CALAVERAS RIVER BASIN

Stockton diverting canal at Stockton, Calif

Location.- Water-stage recorder, lat. 37°59' , long. 121°17', in Campo de Los Franceses 

urant, 200 feet downstream from bridge on Sanguinetti Lane, at north edge of Stockton, 

San Joaquin County. Altitude of gage, about 21 feet (from topographic map). After 

Aug. 2, 1949, at datum 3.00 feet lower.

Records available.- January 1944 to September 1949.

Extremes.- Maximum, discharge during year, 2,550 second-feet Mar. 3 (gage height, 4.67 

reet); no flow for serveral months.

1944-49: Maximum discharge, 7,820 second-feet Feb. 3, 1945 (gage height, 9.9 feet, 

from floodmarks); no flow for several months each year.

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

canal carries practically entire flow of Calaveras River (see p.284), diverting from 

Mormon Lough at lat. 37°57'36", long. 121°12"'06", and discharging into Caleveras River 

0.2 mile below Station. Mormon Slough diverts from Calaveras River at Bellota.

Cooperation.- Five discharge measurements furnished by State of California.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge. In Second-feet)

-0.6

-.5

-.4

-.3

-.2

-.1

0.0 

.1

2.5

5.5

10

16

44

60

78

125

0.8 

1.0 

1.4 

2.0 

3.0 

4.0

177

240

415

730

1,330

2,050

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24 

25

26 

21 

26 

29

30 

31

Oct.' Nov. Dec.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

a80 

a55 

a 40

Jan.

a20 

a? 

aS 

a60 

a30

a!8 

alO 

a7 

aS 

a4

a2.5 

al.5 

a. 5 

aO 

aO

aO 

aO 

aO 

aO 

aO

a2 

a50 

alSO 

a!90 

al20

a 60 

37 

22 

17 

12 

9.5

Feb.

6.0 

5.5 

1.5 

0 

3.0

80 

192 

485 

268 

140

90 

a220 

al70 

a!20 

a90

a72 

55 

47 

69 

99

101 

99 

60 

9.5 

a. 8

a. 2 

19 

27

Month

Octo 

Hove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

7.0 

2.3 

804 

2,000 

1,250

1,070 

912 

780 

675 

555

515 

949 

1,240 

1,090 

966

840 

741 

631 

555 

900

702 

587 

719 

719 

626

555 

500 

450 

356 

307 

280

Apr.

240 

217 

198 

180 

166

158 

158 

150 

86 

30

25 

20 

18 

7.5 

2.5

.2 

0 

0 

0 

0

0 

40 

57 

58 

60

36 

11 

6.3 

6.7 

4.6

Secondfoot -days

0 

0 

175

34,305.7

840.0 

2,529.5 

22,283.3 

1,935.8 

46.1 

2,684 

21.7 

0 

0

30,515.4

May

3.0 

1.5 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

15

21 

5.6 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0 

0 

80

3,190

190 

485 

2,000 

240 

21 

626 

19 

0 

0

2,000

June

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

513 

626

560 

470 

307 

150 

58

Minimum

July

19

2.7 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0

0

0 

0 

2.3 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

5.6

93.7

27.1 

90.3 

719 

64.5 

1.49 

89.5 

.70 

0 

0

83.6

Sept.

Runoff In 

aore-feet

0 

0 

347

68,040

1,670 

5,020 

44,200 

3,840 

91 

5,320 

43 

0 

0

60,530

a No gage-height record; discharge computed on basis of recorded range in stage, records for Calaveras River at Jenny Lind, and unpublished records for Mormon Slough at Bellota Weir.
BEAR CREEK BASIN 287

Bear Creek near Lockeford, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°09'15", long. 121°08 I 15", in 

wwtSEt 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 1949. 

October isae to November 1930 at site 3 miles downstream (records not equivalent).

Extremes.- Maximum discharge during year, 1,150 second-feet Mar. 3 (gage height, 11.04 

reet); no flow for several months.

1930-33, 1943-49: Maximum discharge, 2,260 second-feet Feb. 2, 1945 (gage height, 

14.45 feet), from rating curve extended above 1,900 second-feet; no flow for several 

months each year.

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

No storage or diversion above station.

Rating table, water year 1948-49 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Apr.' 2-5)

2.3 0 2.7 6.3 4.0 124 

2.4 .4 2.8 9.8 6.0 358 

2.5 1.5 2.9 16 8.3 664 

2.6 3.4 3.0 23

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

36 

37 

26 

29 

30 

31

Oct.

0 

0 

0 

0 

0

0 

0 

0 

0

.1

.1 

.1 

.1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov. Dec. Jan. Feb.

0 

0 

0 

0 

0

0 

6.2 

6.3 

1.8 

.8

.4 

a. 3 

a.2 

a.2 

.2

.1 

.1 

.1 

a.l 

aO

aO 

ao 

aO 

a.5 

a.5

a!5 

11 

5.3

Month

OctO 

Move

Decs

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base. 220 sec. -ft.}.- Mar.

sec. -ft. 

a Ho gage-height record) discharge compute

Mar.

2.8 

82 

655 

213 

52

35 

23 

a20 

a30 

a70

a200 

alOO 

a50 

a25 

16

14 

12 

7.7 

38 

48

16 

12 

17 

9.8 

7.0

5.6 

4.7 

3.9 

3.2 

2.6 

2.4

Apr.

2.6 

2.0 

1.6 

1.2 

1.0

.8 

.4 

.2 

a.2 

a.2

a.2 

a.l 

a.l 

a.l

a.l

a.l

a.l 

a.l 

.1 

.1

0 

0 

0

0 

.7

.2 

.1 

.1 

.1 

0

fo^Says

0.4 

0 

0

251.8

0 

49.1 

1,777.7 

12.5 

.5 

.3 

.4 

.2 

.2

1,841.3

3 (7 p.m.) 

d on 'basis c

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.1 

.2 

,1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

aO 

aO

aO 

aO 

aO 

a.l 

aO 

aO

Maximum

0.1 

0 

0

61

0 

15 

655 

2.6 

.2 

.2 

.2 

.1 

.1

655

June

aO 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

ao 

aO

aO 

aO

90

aO 

aO

aO 

aO 

aO 

aO 

a.2

a.l 

aO 

aO 

aO 

aO

July

aO 

aO 

aO 

aO 

aO

aO 

aO 

aO 

a.l 

a.2

a.l 

aO 

aO 

aO 

aO

aO 

aO 

aO 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Aug.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

0 

0 

0 

0 

0

0 

0 

0

.1

0

0 

0 

0 

0 

0 

0

Sept.

0 

0

.1 .1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

m

n4.m(« u«a« Runof* In niaum Mean acre.feet

o o.oi o.a

00 0 

00 0

0 .69 500

0 O 0 

0 1.75 97 

2.4 57.3 3,530 

0 .42 25 

0 .02 1.0 

0 .01 .6 

0 .01 .8 

0 .01 .4 

0 .01 .4

O 5.04 3,660

1,150 sec. -ft, i Mar. 11 (time unknown) 293 

f recorded range In stage.
288 MOKELUMNE RIVER BASIN

Salt Springs Reservoir near West Point, Calif.

Location.- Staff g£tge, 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 1949.

Extremes.- Maximum contents observed during year, 140,000 acre-feet June 13, 18, 19, 2"2, 

at>, 2V (elevation, 3,958.0 feet); minimum observed, 629 acre-feet Apr. 9 (elevation, 

3,712.8 feet).

1931-49: Maximum contents observed, 140,000 acre-feet on several days in July 1948 

and June 1949 (elevation, 3,958.0 feet); no contents Jan. 30 to Feb. 5, Feb. 18-26, 

1932, Mar. 1-25, 1933, Jan.. 29-3.1, 1945.

Remarks.- Reservoir is formed by concrete-faced rock-fill dam, completed in 1931; storage

 began in March 1931. Capacity, 139,000 acre-feet between elevations 3,707.25 feet

(powerhouse intake) and 3,957.0 feet (upper operating limit, 1 foot below top of radial 

gates) above mean sea level. Additional storage of 1,860 acre-feet is available f«r 

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. 294). 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 1948 to September 1949

Da,

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

Oot.

91,100

90,200

89,200

88,300

87,200

86,100

85,000

84,000

82,9OO

82,000

80,9OO

8O.1OO

78,900

77,900

76,900

75,900

74,800

73,800

72,9OO

71,800

70.9OO

69,800

68,70O

67,800

66,800

65,700

64,700

63,800

62,700

61,800

61,100

Mov.

6O,1OO

59,400

58,700

57 , 900

57,100

56,700

56,300

55,800

54,800

53,900

52,900

51,8OO

50,700

49,600

48,500

47,800

46,600

45,600

44,80O

43,600

42,600

42,000

40,700

39,9OO

39,000

38,200

37,300

36,600

35,700

35,000

-

Deo.

34,200

33,400

33,100

32,400

31,800

31,300

30,700

29,800

29,200

28,600

27,600

27.OOO

26,400

25,80O

25,000

24,000

23,000

22,200

21,3OO

20,300

19,3OO

18,500

17,400

17,000

16 , 900

17,000

16,700

16,400

16,200

16,000

15,900

Jan.

15,900

15,800

15,700

15,500

15,300

15,100

15,OOO

14,900

14,800

14,500

14,000

13,500

13,000

13,200

13,000

12,800

12,500

l^OO

11, 1 00

11,200

10.9OO

10,700

10,200

9,760

9,140

8,660

8,300

"8,030

7,840

7,660

7,290

Feb.

7,110

6,910

6,680

6,270

5,910

5,63O

5,330

4,970

4,690

4,580

4,450

4,320

4,220

4,140

4,040

3,930

3,83O

3,810

3,770

3,750

3,730

3,710

3,710

3,710

3,690

3,670

3,710

3,73O

_

-

-

Mar.

3,770

3,980

4,350

6,610

7,O60

9,060

9,200

9,340

9,490

9,310

9.06O

8,740

8,520

6,910

6,050

5,740

5,330

5,350

5,880

6,120

6,290

6,390

6,220

5,700

5,310

4,990

5,310

5,510

5,420

5,330

3,980

Apr.

3,6OO

3,170

2,82O

2,570

2,520

2,68O

2,080

729

629

1,520

2,910

4,750

6,390

7,520

e, 150

6,460

7,160

7,140

6,880

7,240

8,630

10,500

13,000

15,200

20,000

24,100

28,100

31,400

34,200

37,100

-

May

39,600

43,200

45,900

49,700

52,800

55,500

58,8OO

62,200

64,600

67,100

7O,6OO

75.7OO

81,200

86,800

91,600

96,200

101,000

104,100,

106,3OO

108,400

110,200

112,400

115,100

118,800

122,200

127,800

131,500

134,800

137,100

137,900

138,600

June

138,400

138,600

139,000

139,000

139,000

139,000

139,000

139,000

139,400

139,400

139,200

139,300

1 40.OOO

139,900

139,900

139,900

139,900

140,000

140,000

139,800

139,800

140,000

139,800

139,600

139,800

140,000

140,000

139,800

139,800

139,800

-

July

139,500

139,300

139, 5OO

139,400

138,600

137,800

137,000

136,100

135,500

134,700

134,000

133,200

132,300

131,800

131,600

131,300

130,900

130,600

130,200

129,900

129,600

129,600

129,600

129,700

129,600

129,400

129,000

128,700

128,200

128,300

128,200

Aug.

127,900

127,200

126,500

126,000

125,600

124,800

124,300

123,400

122,400

121,400

120,500

119,500

118,500

117,900

117,100

116,300

115,500

114,000

113,100

112,000

111-, 300

110,400

109,500

108,400

107,500

106,400

105,600

104,700

103,800

102,900

102,100

Sept.

101,100

100,100

99,200

98,400

97,500

96,600

95,500

94,600.

93,600

92,800

91,908

91,000

89,900

 88,900

87,900

86,900

86,200

85,600

84,900

83,900

82,800

81,900

80,700

80,000

79,100

78,300

77,200

76,200

.13,000

74,000

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Sept. 30. ....... ........

Dec. 31. ...............

Calendar year 1948...

Feb. 28................

Sept.30. ...............

Water year 1948-49. . .

Elevation 

(feet)t

-

5 73-3 3

3 932 4

3,880.6

_

Contents 

(acre -feet)

-

7 290

138 600

74,000

-

Change in contents 

during month 

(acre-feet)

+6,200

4-1 200

26 100

-28,100

-18,200

t Elevation at 5 p.m.
MOKELUMNE RIVER BASIN 289

North Fork Mokelumne River below Salt Springs Dam, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 120°13', in SW£ sec.- 33, T. 8 N., R.

16 E., 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold Creek.

Altitude of gage, about 3,600 feet (from topographic map). 

Drainage area.- 160 square miles.

Records available.- September 1926 to September 1949. 

Average discharge.- 22 years (1927-49), 433 second-feet (combined flow of North Fork

Moiceiumne tuver and Tiger Creek powerhouse conduit). 

Extremes.- Maximum discharge during year, 2,930 second-feet Apr. 14 (gage height, 8.76

feet;; minimum, 0.8 second-foot Feb. 18.

1926-49: Maximum discharge, 8,740 second-feet Mar. 25; 1928 (gage height, 15.62 feet,

present datum), from rating curve extended above 4,000 second-feet; minimum, 0.2 secondfoot Mar. 31, 1931. 

Remarks. - Records good except those below 20 second-feet, which are' fair. Flow regulated

since 1931 by Salt Springs Reservoir (see preceding page). Diversion above station

through Tiger Creek powerhouse conduit (see p. 294). 

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained

in connection with a Federal Power Commission project.

Rating table, water year 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Shifting-control method used June 18 to Sept. SO)

1.5

1.6

1.7 

1.9

2.7

5.0

8.0

16

2.1 27

2.4 50

2.6 69

2.9 108

3.2 155

3.5 211

4.0 329

4.5 485

5.0 675

5.5 915

6.0 1,170

6.5 1,440

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

32 

23 

24 

25

26 

27 

38 

29 

30 

31

Oct.

13 

12 

12

11 

11

11 

10 

11 

11 

10

10 

10 

10 

1011 

11

10 

10 

10 

10

10 

10 

10 

10 

10

10 

10 

10 

9.6 

9.2 

8.4

Nov.

4.5 

4.3 

3.8 

3.6 

3.6

4.8 

4.8 

4.5 

4.1 

3.8

4.1 

4.1 

4.5 

4.5 

5.3

5.0 

4.$ 

4.5 

4.3

4.1

4.3 

4.5 

4.5 

4.3 

4.3

4.3 

4.1 

3.8 

4.1 

4.8

Dec.

5.6 

5.6 

5,6 

5.3 

5.3

5.3 

5.3 

5.3 

5,0 

4.8

4.8 

4.8 

5.3 

5.3 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

4.8 

4.8 

4.5 

4.1 

3.6

4.1 

4.5 

4.3 

4.1 

4.1 

4.1

Jan.

3.8 

3.8 

3.8 

a4 

a4

a4 

a4 

4.3 

4.5 

b4

3.6 

3.8 

3.8 

3.6 

3.6

3.6 

3.6 

3.8 

4.1 

3.8

3.6 

3.8 

3.6 

4.3 

4.3

4.3 

3.8 

4.1 

3.8 

3.8 

4.3

Feb.

4.3 

4.3 

4.3 

4.5 

4.3

4.5 

4.8 

4.5 

3.8 

3.8

3.8 

3.6 

3.6

4.1 

4.1

4.1 

4.3 

3.5 

4.5 

4.5

5.0 

4.8 

4.8 

4.5

4.1

4.1 

4.1 

4.1

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

raber. ...................................

lendar year 194fi

ter year 1948-49 .......................

Mar.

3.8 

4.3 

6.3 

5.3 

4.5

3.4 

4.1 

4.3 

4.5 

5.6

6.2 

5.6 

5.3 

5.0 

5.0

7.4 

6.5 

6.2 

6,8 

6.8

6.5 

6.8 

5.9 

5.6 

5.6

6.2 

6.5 

 6.2 

4.5 

3.8 

3.8

Apr.

3.6 

3.6 

^.8 

4.3 

5.9

6.2 

1,040 

516 

307 

4,5

4.5 

4.3 

3.8 

1,370 

1,310

1,020 

1,290 

1,440 

1,360 

950

930 

965 

1,010 

575 

5.6

5.6 

5.9 

6.5 

6.5 

6.5

Seeondfoot-days

320.2 

130.0 

150.3

57,722.6

121.2 

118.7 

168.2 

14,164.1 

3,486.2 

14,853 

393 

333.8 

257.6

34,494.3

Hay

10 

11 

11 

10 

8.8

8.0 

9.6 

10 

11 

9.6

9.2 

11 

10 

11 

12

13 

14 

14 

15 

15

15 

15 

16 

16 

55

298 

517 

498 

450 

631 

753

Maximum

12 

5.3 

5.6

2,810

4.5 

5.0 

7.4 

1,440 

753 

1,390 

15 

12 

9.2

1,440

June

885 

730 

870 

1,040 

1,250

1,310 

1,390 

1,300 

870 

1,160

1,040 

448 

637 

813 

465

372 

254 

57 

16 

15

15 

14 

14 

14 

14

15 

17 

16 

16 

15

July

15 

15 

15 

14 

14

14 

13 

13 

13 

13

13 

13 

12 

12 

13

12 

12 

12 

1? 

12

12 

12 

12 

12 

12

13 

12 

13 

13 

13 

12

Minimum

8.4 

3.6 

3.6

2.7

3.6 

3.5 

3.4 

3.6 

8.0 

14 

12 

8.8 

8.0

3.4

Aug.

12 

a!2 

a!3 

a!2 

a!2

al2 

a!2 

h!3 

a!2 

a!2

a!2 

all 

all 

all 

hll

all 

11 10' 

10 

10

10 

9.6 

9.6 

9.6 

9.6

9.6 

9.6 

9.6 

9.6 

9.2 

8.8

Mean

10.3 

4.33 

4.85

158

3.91 

4.24 

5.43 

473 

112 

495 

13.7 

10.7 

8.59

94.5

Sept.

5.8 

8.8 

8.8 

8.8 

8.8

8.8 

8.8 

8.4 

8.4 

8.4

8.8 

8.8 

8.4 

8.0 

8.0

8.4 

8.4 

8.4 

9.2 

9.3

8.8 

8.8 

8.8 

8.4 

8.0

S. 4 

8.4 

8.4 

8.8 

8.4

Runoff In 

acre-feet

635 

358 

298

114,500

340 

335 

334 

28,100 

6,910 

29,460 

780 

660 

511

68,420

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
290 MOKELUMNE RIVER BASIN

Mokelumne River near Mokelumne Hill, Calif.

Location.- Water-stage recorder, lat. 38°18'40", long. 120°43'10", in sec. 1, T. 5 N., R. 

Ll K., 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 1949.

Average discharge.- 21 years (1928-49), 870 second-feet.

Extremes.- Maximum discharge during year, 4,640 second-feet Apr. 15 (gage height, 7.30 

reet]; minimum, 26 second-feet Sept. 9.

1927-49: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 16,10 

feet), from rating curve extended above 11,000 second-feet on basis of velocity-area 

studies; minimum, 14 second-feet Oct. 27, 1929.

Remarks.- Records excellent. Flow regulated by Salt Springs Reservoir beginning in 1931 

(see p. 288), several smaller reservoirs, and three power plants. Diversions above 

station for irrigation and domestic use.

Discharge, In second-feet, water year October 1948 to September 1949

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.

564 

. 532 

572 

466 

621

565 

551 

551 

488 

583

476 

579 

584 

560 

549

593 

554 

598 

548 

558

571 

609 

542 

543 

537

595 

508 

582 

505 

133 

122

Mov.

332 

544 

598 

586 

594

316 

151 

387 

629

608

572 

529 

576 

508

559

566 

538 

464 

530 

560

506 

475 

667 

520 

478

564 

462 

379 

531 

430

Dec.

465 

355 

408 

43S 

180

558 

532 

459 

408 

373

490 

452 

596 

534 

595

526 

569 

612 

522 

671

596 

615 

524 

396 

210

217 

499 

338 

316 

263 

224

Jan.

282 

224 

298 

190 

276

200 

196 

216 

262 

262

328 

417 

276 

240 

160

146 

220 

246 

359 

270

238 

288 

292 

393 

336

283 

256 

198 

224 

218 

202

Feb.

236 

236 

192 

236 

266

224 

242 

290 

224 

124

296 

196 

141 

158 

178

142 

162 

158 

138 

146

174 

197 

210 

224 

256

282 

266 

262

Month

Octo 

Hove 

Dece

Ca

Janu 

pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

lendar year 1948

ter year 1948-49 .......................

Mar.

218 

269 

1,43O 

963 

562

358 

263 

304 

492 

584

1,010 

1,220 

1,060 

825 

930

926 

706 

563 

879 

420

692 

844 

908 

862 

731

634 

576 

822 

896 

844 

843

Apr.

769 

735 

895 

829 

863

931 

1,340 

1,740 

1,180 

1,190

1,010 

1,290 

1,230 

1,970 

2,920

2,410 

2,410 

2,760 

2,820 

2,400

2,430 

2,660 

3,190 

2,960 

2,120

1,820 

1,830 

1,680 

1,500 

1,560

Secondfoot -days

16,339 

15,119 

13,941

302,929

7,996 

-5,856 

22,634 

53,442 

46,909 

36,756 

14,955 

15,311 

14,560

263,818

May

1,430 

1,640 

1,540 

1,480 

1,440

1,280 

1,480 

1,390 

1,270 

1,050

1,450 

1,900 

2,180 

2,450 

1,910

1,600 

1,950 

1,260 

1,230 

1,120

1,050 

879 

1,050 

1,300 

1,470

1,560 

1,940 

1,800 

1,580 

1,470 

1,760

Maximum

621 

667 

671

4,570

417 

296 

1,430 

3,190 

2,450 

2,650 

896 

619 

598

3,190

June

1,450 

1,610 

1,480 

1,960 

2,360

2,200 

2,610 

2,650 

1,950 

2,080

2,270 

1,720 

1,070 

1,600 

1,340

1,130 

1,010 

967 

772 

667

567 

511 

474 

454

311

.68 

374 

345 

404 

352

July

Minimum

122 

151 

180

43

146 

124 

318 

735 

879 

68 

73 

152 

280

68

392 

417 

186 

73 

532

696 

559 

616 

518 

181

674 

634 

608 

599 

604

478 

509 

584 

587 

507

610 

S08 

483 

265 

556

616 

494 

534 

515 

134 

186

Aug.

564 

557 

402 

520 

474

568 

289 

536 

596

535

484 

581 

553 

302 

500

452 

592 

542 

566 

619

152 

463 

526 

545 

587

507 

486 

414 

502 

571 

326

Mean

527 

504 

450

828

258

209 

730 

1,781 

1,513 

1,225 

482 

494 

485

723

Sept.

484 

548 

550 

487 

280

577 

398 

528 

501 

558

408 

482 

570 

4.98 

515

435 

283 

406 

380 

524

525 

552 

525 

444 

383

551 

426 

556 

588 

598

Runoff in 

acre-feet

32,410 

29,990 

27,650

600,800

15,860 

11,620 

44,890 

106,000 

93,040 

72,900 

29,660 

30,370 

28,880

523,300
MOKELUMNE RIVER BASIN 291

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., 

H. 10 £)., 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.

Hecpras available.- June 1926 to September 1949.

jftyerage qischarge.- 20 years (1929-49), since start of East Bay aqueduct diversion, 804

~~ ~SBcond-i'set.

Extremes.- Maximum discharge during year, 3,070 second-feet June 8 (gage height, 6.46 

feet); minimum, 39 second-feet Jan. 7.

1926-49: 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 except those for periods of no gage-height record, which are 

good. Plow regulated by Pardee Reservoir beginning Mar. 9, 1929 (total capacity, 

210,000 acre-feet), Salt Springs Reservoir beginning March 1931 (see p. 288), 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 1948-49 (gage height, In feet, 

and discharge, In second-feet)

1.0 34 1*5 96 2.1 221 3.4 735 

1.1 44 1.6 113 2.3 275 4.0 1,090 

1.2 55 1.7 132 2.5 338 5.0 1,810 

1.3 67 1.8 152 2.7 410 6.0 2,660 

1.4 81 1.9 174 3.0 534

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

496

525 

362 

425 

470

442 

437 

g432 

g3S9 

g239

gS06 

g490 

482 

482 

559

324 

159 

393 

440 

430

453 

492 

357 

376

455

492 

461 

460 

471 

391 

377

Nov.

474 

469 

473 

454 

480

423 

233 

476 

491 

500

488 

493 

488 

339

444

479 

494 

470 

462 

310

215 

496 

507 

519 

343

464 

49S 

448 

445 

486

Dec.

239 

263 

286 

223 

159

g23S 

g318 

196 

159 

219

290 

184 

360 

379 

425

413 

222 

485 

655 

514

655 

655 

6SS 

665 

665

660 

660 

665 

665 

675 

588

Jan.

89 

48 

47 

65 

SO

46 

42 

76 

87 

127

136 

195 

219 

225 

157

119 

g229 

g218 

224 

252

233 

113 

57 

208 

207

247 

g243 

'g229 

g96 

g260 

g246

Feb.

g!36 

187 

166 

197 

93

96 

178 

167 

87 

133

119 

71 

72 

90 

124

103 

241 

262 

240 

157

223 

227 

210 

209 

235

214 

144 

220

Month

00 to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 .......................

ter year 1948-49 .......................

Mar.

484 

525 

613 

506 

247

151 

476 

511 

508 

691

691 

735 

686 

680 

680

691 

691 

691 

696 

691

691 

679 

534

514 

511

500 

289 

564 

686 

686 

686

Apr.

1 

2,

2, 

2. 

2, 

2, 

2,

2, 

1, 

1,

Secondfoot-days

13,267 

13,361 

13,432

249,927

4,790 

4,601 

17,984 

33,987 

28,099 

32,623 

14,796 

13,100 

13,281

203,321

686 

686 

680 

528 

605

590 

567 

570 

680 

680

680 

626 

670 

670 

670

665 

521 

643 

710 

360

360 

380 

370 

350 

330

360 

930 

140 

650 

650

May

650 

650 

645 

645 

554

645 

650 

635 

640 

645

655 

650 

640 

1,140 

gl,S40

gl,280 

1,170 

1,160 

1,160 

844

480 

396 

464 

461 

990

1,450 

1,460 

1,470 

1,420 

1,440 

1,470

Maximum

SS9 

519 

675

4,160

260 

262 

735 

2,370 

1,540 

2,210 

650 

490 

522

2,370

June

1,470 

1,470 

1,470 

1,480 

1,480

1,480 

1,740 

2,130 

2,210 

1,520

1,750 

1,600 

958 

1,110 

1,350

1,020 

655 

680 

660 

640

635 

635 

635 

510 

460

568 

594 

570 

571 

552

July

448 

315 

281 

306 

500

640 

645 

645 

645 

625

645 

645 

650 

513 

472

£69 

215 

444 

432 

462

508 

498 

634 

198 

458

511 

460 

455 

452 

427 

398

Aug.

452 

483 

463 

462 

465

347 

237 

450 

490 

468

469 

469 

485 

174 

470

479 

484 

484 

481 

478

163 

445 

464 

475 

461

462 

344 

159 

447 

453 

437

Minimum Mean

159 428 

215 445 

159 433

46 683

42 155 

71 164 

151 580 

521 1,133 

396 906 

460 1,087 

198 477 

159 423 

197 443

42 557

Sept.

470 

480 

493 

287 

361

470 

480 

SOS 

489 

499

261 

477 

473 

494 

492

490 

426 

197 

468 

495

482 

480 

481 

392 

364

476 

470 

522 

469 

438

Runoff In 

acre-feet

26,310 

26,500 

, 26,640

495,700

9,500 

9,130 

35,670 

67,410 

55,730 

64,710 

29,350 

25,980 

26,340

403,300

g Computed from graph based on powerhouse operation records.
292 MOKELUMNE-RIVER BASIN 

Mokelumne River near Clements, Calif.

Location.- Water-stage recorder, lat. 38°12'25", long. 121°05'20", in NWt sec. 15, T. 4 

W. , H. 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 Minicipal Utility District).

Drainage area.- 630 square miles.

Records available.- October 1904 to September 1949.

Average discharge.- 24 years (1904-28), 1,110 second-feet; 20 years (1929-49), 810 secondfeet. (Storage and diversion by East Bay Minicipal Utility District began March 1929).-

Extr ernes . - Maximum discharge during year not determined; minimum, 35 second-feet Jan. 24.

19174-49: 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 

HiVer near Lancha Plana.

Revision.- W 751: Drainage area.

"Remarks" for Mokelumne

Discharge, In second-feet, water year October 1948 to September 1949

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.

453 

533

465 

407 

436

458 

444 

424 

403 

257

415 

490 

486 

486

568

440 

200 

306 

408 

432

421 

467 

420 

358 

430

460 

486 

458 

460 

404 

384

Nov.

468 

465 

466 

470 

460

456 

344 

324 

503 

494

494 

506 

484 

402 

454

456 

488 

511 

478 

379

295 

339 

501 

522 

486

366 

478 

518 

470 

443

Dec.

306 

239 

302 

254 

220

228 

304 

230 

168 

162

222 

324 

260 

388 

417

447 

306 

350 

668 

522

672 

676 

668 

680 

680

684 

696 

684 

645 

676 

649

Jan.

323 

83 

58 

58 

68

57 

52 

49 

82 

87

128 

120 

170 

205 

210

121 

126 

204 

206 

268

250 

210 

118 

76 

207

240 

250 

296 

204 

106 

186

Feb.

el65

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194£

ter year 1948-49 ...............

Mar.

e600

Apr.

.el, 150

Secondfoot-days

13,259 

13,520 

13,727

251,600

4,818 

4,620 

18,600 

34,500 

28,055 

33,128 

15,351 

13,032 

13,265

205,873

May

. e905

Maximum

568 

522 

696

4,220

323

679 

496 

514

-

June

'el, 460

724 

746 

695

679 

675 

675 

554 

487

612 

632 

602 

615 

. 610

Minimum

July

467 

473 

289 

301 

388

667 

675 

675 

679 

667

675 

675 

679 

542 

504

309 

260 

365 

460 

448

528 

510 

'670 

296 

352

525 

464 

470 

464 

456 

418

200 

295 

162

47

49

260 

244 

286

49

Aug.

426 

473 

473 

462 

472

388 

292 

370 

496 

464

479 

466 

487 

340 

289

469 

476 

476 

480 

488

298 

298 

438

477 

457

460 

408 

244 

286 

448 

452

Mean

428 

451

443

687

155 

165 

600 

1,150 

905 

1,104 

495 

420 

442

564

Sept.

455 

480 

494 

337 

387

387 

489 

506 

492 

504

334 

390 

472 

488 

494

4.89 

428 

286 

353 

 492

502 

462 

477 

412 

321

406 

472 

512 

514 

430

Runoff in 

acre-feet

26,300 

26,820 

27,230

499,100

9,560 

9,160 

36,890 

68,430 

55,650 

65,700 

30,450 

25,850 

26,310

408,400

e Stage-discharge relationship indefinite because of dredging operations Feb. 1 to June 17; 

discharge computed on basis of records for station at Lancha Plana.
MOKELUMNE RIVER BASIN 293

Mokelumne River at Woodbridge, Calif.

Location. : Water-stage recorder, lat. 38 0 09'30", long. 121°18'10", in NE£ sec. 34, T. 4 

M., K. 6 E., at Woodbridge, 0.4 mile downstream from dam and canal intake of Woodbridge 

Irrigation District. Datum of gage is 14.9 feet above mean sea level (levels by East 

Bay Municipal Utility District).

Drainage area.- 644 square miles.

Records available.- May 1924 to September 1949 (for 1924 and 1925, low-water records only).

Average discharge.- 20 years (1929-49), since start of diversion through East Bay Municipal 

Utility District aqueduct, 643 secQnd-feet.

Extremes.- Maximum discharge during year, 2,320 second-feet Dec. 20 (gage height, 15.00 

reet); minimum, 21 second-feet Aug. 30.

1924-49: Maximum gage height, 26.58 feet, datum then in use., (about 30.6 feet, present datum), Mar. 26, 1928 (discharge not determined); minimum discharge, 0.9 secondfoot Sept. 3, 1924.

Remarks.- Records good. Concerning regulation and diversions see "Remarks" for Mokelumne 

itiver near Lancha Plana; between Woodbridge and Lancha Plana are many additional diversions for irrigation, including Woodbridge Canal (see p. 299).

Revisions.- W 751: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

143 

200 

247 

160 

157

196 

198 

198 

178 

150

74 

206 

249 

255

263

285 

178 

56 

134 

207

224 

245 

267 

168 

162

211

248 

270 

274 

296 

227

Nov.

220 

288

300 

317 

310

310 

285 

170 

252 

316

308 

303 

318 

314 

231

350 

389 

400 

395

386

287 

213

347 

413 

456

320 

334 

387 

382 

357

Dec.

368 

192 

174 

199 

174

113 

125

197 

135 

92

92 

138 

139 

196 

288

287 

297 

180 

323 

1,030

618 

654 

650 

654 

662

674 

689 

668 

662 

646 

654

Jan.

580 

232

aso

95 

82

81 

72 

66 

63 

85

123 

141 

163 

198 

228

179 

157 

192 

222

231

226 

230 

152 

113

146

191 

232 

244 

242 

140 

109

Feb.

2Q4 

165 

157 

166 

191

124 

110 

159 

171 

103

118 

125 

89 

75 

88

85 

93 

189 

236 

220

172 

180 

210 

218 

194

206 

229 

158

Month

Oeto 

Nove 

Deee

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

mber ....................................

lendar year 1948 

ai*y

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

ter year 1948-49 .......................

Mar.

192

427 

725 

1,040 

588

316 

190 

429 

499 

579

697 

757 

831 

714 

697

694 

697 

692

702 

747

704 

699 

609 

544 

518

514 

498 

326 

598 

664 

673

Apr.

673 

673 

673 

593 

546

378 

62 

208 

337 

394

372 

322 

277 

294 

320

403 

365 

170 

562 

1,410

1,860 

1,930 

1,990 

2,020 

1,990

1,940 

1,930 

1,390 

569 

1 330

Secondfoot-days

6,326 

9,658 

11,970

170,889.2

5,345 

4,434 

18,560 

24,981 

14,677 

19,463 

2,047 

1,234 

3,408

122,103

May

282

286 

269 

240 

214

191 

258 

322 

242 

241

218 

158 

179- 

257 

1,050

1,040 

785 

730 

726 

718

309 

136 

46 

37 

32

739 

961 

1,010 

1,020 

996 

985

Maximum

296 

456 

1,030

3,920

580 

236 

1,040 

2,020 

1,050 

1,720 

210 

185 

224

2,020

June

1,020 

1,030 

1,010 

980 

879

963 

1,060 

1,360 

1,720 

1,540

1,060 

1,340 

961 

317 

890

742 

450 

262 

283 

269

181 

175 

173

159 

79

78 

138 

134 

112 

98

July

67 

39 

32 

28 

25

27 

85 

145 

182 

210

190

177 

165 

124 

56

37 

28 

25 

25 

25

25

27 

34 

83 

27

25

26

27 

27 

27 

27

Minimum

56 

170 

92

8.2

63 

75 

190 

62 

32 

78 

25 

22 

23

22

Aug.

27 

26 

26 

26 

25

25 

25 

25 

25 

25

25 

26 

39 

185 

25

23 

24 

24 

32 

116

84 

25 

23 

24

27

30 

120 

59 23- 

22 

23

Mean

204 

322 

386

467

172 

158 

599 

833 

473 

649 

66.0 

39.8 

114

335

Sept.

25 

44 

149 

102 

24

23 

44 

129 

179 

156

155 

34 

91 

146

138

146 

"137 172 

36 

68

139 

147 

143 

150 

103

43 

106 

146 

224 

209

Runoff In 

acre-feet

12,550 

19,160 

23,740

339, .000

10,600 

8,790 

36,810 

49,550 

29,110 

38,600 

4,060 

2,450 

6,760

242,200

947809 0-51-20
294 MOKELUMNE RIVER BASIN 

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°30', long. 120°13', in SW£ 

sec. 33, T. 8 N., R. 16 E., 1,000 feet downstream from Salt Springs Dam and powerhouse. 

Altitude of gage, about 3,700 feet (from topographic map).

Records available.- June 1931 to September 1949. 

Average discharge.- 18 years, 254 second-feet.

Extremes - Maximum daily discharge during year, 548 second-feet Oct. 24; no flow at times.

1931-49: Maximum daily discharge, 577 second-feet June 22, 1945; no flow at times 

in each year.

Remarks.- Records excellent. Conduit conveys water of North Fork Mokelumne River from 

tailrace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up 

water en route from Bear River and several small creeks.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

El 

ZZ 

23

£4 

25

26 

27 

28 

29 

30 

31

Oct.

520 

535 

534 

534 

5£9

530 

535 

535 

534 

530

526 

511 

514 

5£9 

528

5£8 

526 

5£8 

535 

481

496 

542 

547 

548 

541

5£2 

511 

511 

482 

457 

375

Nov.

42S 

476 

505 

508 

453

199 

173 

514 

529 

526

5£6 

5£4 

523 

518 

512

508 

496 

488 

482 

478

474 

470 

470 

468 

464

458 

444 

360 

420 

427

Dec.

388 

335 

333 

328 

£06

343 

385 

393 

319 

371

392 

391 

388 

381 

442

466 

474 

493 

492 

493

49£ 

472 

421 

243 

24

80 

£16 

124 

126 

1£9 

123

Jan.

26

27 

124 

124 

125

116 

100 

100 

100 

226

266 

228 

219 

102 

100

100 

116 

165 

258 

150

158 

177 

£00 

336 

250

216 

172 

160 

100 

104 

183

Feb.

100 

100 

165 

244 

153

99 

157 

196 

77 

50

88 

52 

52 

5£ 

52

52 

104 

69

18

21

14 

7.3 

9.2 

10 

9.9

11 

12 

7.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1943 

iiry

>i. ......................................

ter year 1948-49 ...............

Mar.

0.4 

.5 

18 

£5 

£6

152' 18 

24 

130 

335

384 

420 

420 

421 

4££

399 

£08 

102 

85 

72

100 

£27 

336 

3£8 

£86

201 

201 

331 

396 

398 

395

Apr.

392 

377 

361 

347 

343

549 

£34 

0 

62 

194

139 

117 

122 

118 

89

70 

51 

42 

62 

69

69 

46 

0 

3.7 

9.8

6.7 

1.7 

54 

90 

85

Secondfoot -days

16,054 

13,821 

10,263

98,236.8

4,828 

1,981.4 

6,860,9 

3,903.9 

324.2 

9,520.4 

13,259.1 

14,921 

14,404

110,140.9

May

SI 

77 

73 

25 

1.4

.9 

1.4 

2.5 

2.5 

1.7

1.7 

.8 

1.1 

£.5 

2.5

£.5 

2.5 

2.5 

2.5 

£.5

2.3 

1.9 

1.5 

1.3 

2.5

4.2 

4.2 

4.5

4.5 

4.8

5.0

Maximum

548 

529 

493

559

336 

£44 

422 

39£ 

81 

469 

5£3 

535 

' 535

548

June

7.4 

8.2 

7.8 

295 

337

405 

45£ 

450 

462 

469

469 

4£8 

£78 

351 

434

439

444 

456 

464 

438

364 

£99 

332 

303 

134

167 

221 

£49 

165 

192

July

307 

129 

.1 

285 

492

499 

499 

494 

398 

399

49£ 

5£3 

517 

516 

516

516 

516 

516 

516 

516

516 

516 

478 

399 

496

496 

496 

4,75 

291 

146 

304

Minimum

375 

173 

24

0

£6 

7.0 

.4

0 

.8 

7.4 

.1 

233 

197

0

Aug.

454 

518 

518 

517 

514

399 

421 

516 

516 

516

516 

516 

516 

275

5££

523 

5£3 

530 

535 

490

233 

534 

534 

534 

534

518 

434 

434 

464 

434 

433

Mean

518 

461 

331

268

156 

70.8 

221 

130 

10.5 

317 

428 

481 

480

302

Sept.

532 

532 

442

434 

434

514 

516 

444 

493 

434

434 

514 

530 

529 

528

444 

553 

197 

480 

53£

530 

530 

511 

43£ 

436

518 

53£ 

532 

532 

535

Runoff In 

ao re-feet

31,840 

27,410 

20,360

194,800

9,580 

3,930 

13,610 

7,740 

643 

18,880 

£6,300 

£9,600 

£8,570

£18,500
MOKELUMNE RIVER BASIN 295

Cold Creek near Mokelumne Peak, Calif.

Location.- Water-stage recorder, lat. 38*31', long. 120°13', in sec. 28, T. 8 N., R. 16

E., 2.4 miles upstream from mouth and 6 miles southwest of Mokelumne Peak. Altitude

 of gage, about 6,000 feet (from topographic map). 

Drainage area.- 23 square miles.

Hecordi available.- July 1927 to November 1942. October 1943 to September 1949. 

Average discharger- 21 years (1927-42, 1943-49), 57.8 second-feet.

.Extremes.- Maximum discharge during year, 755 second-feet May 13 (gage height, 4.63 feet); 

 ho' flow Oct. 1-12, Sept. 18-27.

1927-49: 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

MA 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 1948-49, except periods of Ice effect or doubtful gage-height record 

(gage height, In feet, and discharge, In aecond-feet)

1.0

1.2 

3.0 

6.2

1.2 

1.4 

1.6 

1.8 

2.0 

2.3

12

20

29

41

56

85

2.6 

2.9 

3.2 

3.6 

4.0 

4.5

122

177

242

344

476

690

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27

29 

30 

31

Oct.

0

0

0 

0 

0

0 

0 

0 

0 

0

0 

0

.1

.2

.1

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.2 

.3

Nov.

0.6 

7.3 

36 

12 

3.0

1.8 

1.2 

.9 

.7 

.6

.6 

.5 

.5 

.5 

.5

.5 

.5

1,;;

Dec.

1"

.4 

.5 

.5 

1

2

1: 

) 

Jan.

4 

3

Month

Octo 

NOve 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

AUgu 

Sept

Wa

Feb.

3.5

1 5

lendar year 1948

h.. .....................................

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

ter year 1948-49 ...............

Mar.

1"

6.6 

6.4 

6.2 

6.2 

6.2

6.2 

6.4 

6.2 

7.1 

3.4

8.4 

9 

10 

10 

9

7.6- 

7.1 

9.2 

12 

13 

11

Apr.

9.2 

8.7 

9.9 

12 

20

30 

40 

35 

40 

55

10O 

150 

181 

202 

210

208 

229 

200 

135 

215

283 

324 

345 

360 

300

308 

293 

240

224 

227

Secondfoot -days

2.4 

73.7 

66.9

22,324.4

108 

150.5 

272.2 

5,043.8 

8,804 

2,625 

61.4 

4.8 

2.1

17,214.8

May

282 

269 

244 

247 

252

262 

281 

252 

173 

243

432 

466 

440 

622 

328

403 

310 

185 

150 

125

123 

203 

289 

335 

378

384 

313 

252 

209 

202 

150

Maximum

0.3 

36

574

360 

622 

227 

7 

.2 

.2

622

June

114 

145 

169 

214 

215

227 

212 

188 

166 

160

128 

102 

94 

81 

67

55 

43 

37 

31 

27

24 

22 

d!9 

d!7 

d!5

d!4 

d!2 

dlO 

d9 

d8

Minimum

July

d7 

d6.5 

d6 

dS.S 

dS

4.5 

4 

3.3 

2.6 

2.3

i!a

1.4

1.2 

1.1

.9 

.3 

.7 

.6 

.5

.5 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.2 

.2 

.2

0

0

8.7 

123 

8 

.2 

.1 

0

0

Aug.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.2 

.2 

.1

Mean

0.08 

2.46 

2.16

61.0

3.48 

5.38 

8.78 

163 

284 

87.5 

1.98 

.15 

.07

47.2

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1

.1 

.1

.1 

.1 

.1 

.1

.1

.1

.1 

0 

O 

0

0 

0 

0 

0 

0

0 

0 

.2 

.1 

.1

Runoff In 

acre-feet

4.8 

146 

133

44,290

214 

299 

540 

10,000 

17,460 

5,210 

122 

9.5 

4.2

34,140

Peak discharge (base. 500 sec.-ft.).- Apr. 24 (10 p.m.) 591 sec.-ft.; May 15 (12 p.m.) 755 se.c.- 

ft.; May 26 (8 p.m.) 663 sec.-ft.

* Winter discharge measurement made on this day.

d Doubtful gage-height records discharge computed on basis of unpublished records for Cold Creek 

feeder canal.

Note.- Stage-discharge relation affected by Ice Nov. 17 to Mar. 10, Mar. 22-25, 29, 30, Apr. 5-12. 

No gage-height record Dec. 22, Jan. 16 to Feb. 28, July 6, 7j discharge computed on basis of unpublished records for Cold Creek feeder canal.
296 MOKELUMNE RIVER BASIN 

Bear River at Pardoe Camp, Calif.

Location.- Water-stage recorder, lat. 38'° 32', long. 120°15', In sec. 18, T. 8 N., R. 16 

E., at Pardoe Camp, 2 miles downstream from Bear River Reservoir of Pacific Gas & 

Electric Co. Altitude of gage, about 5,650 feet (from topographic map).

Drainage area.- 33.0 square miles.

Records available.-JTuly 1927 to September 1949.

Average discharge.- 22 years, 99.3 second-feet.

Extremes.- Maximum discharge during year, 1,380 second-feet May 12 (gage height, 5.79 

feet); minimum, 4.5 second-feet Oct. 26-28.

1927-49: Maximum discharge, 5,850 Second-feet Dec. 11, 1937 (gage height, 12.0 

feet, from floodmarks)j 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 jeriods of ice effect or no gage-height record, 

whicn are fair. About 6,000 acre-feet is stored each year at reservoir above station 

and usually released during late summer and early winter. No diversion above station.

Cooperation.- 'Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions.- W 861: Drainage area.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

34 

25

26 

27 

28 

29 

30 

31

Oct.

7.4 

7.1 

7.1

7.1

6.8 

6.8 

6.5 

6.2 

6.2

6.2 

6.2 

6.5 

6.0 

5.8

5.4 

5.2 

5.2 

5.2 

5.2

5.2 

4.9 

4.9 

4.9 

4.7

4.7 

4.5 

4.5 

5.2 

5.2 

5.4

Nov.

6.8 

7.4 

9.1

6.5

6.2 

6.0 

5.8 

5.6 

5.6

5.4 

5.4 

5.2 

5'. 2 

5.4

5.4 

5.6 

5.2 

5.2 

5.2

4.9 

4.9 

5.2 

5.2 

4.9

4.9 

4.7 

4.7 

4.7 

4.7

Dec.

4.7 

4.7 

5.6

5.6

5.4 

5.4 

5.2 

4.9 

4.9

4.9 

4.9 

5.8 

5.8 

5.6

. 5.4 

aS.S 

aS.S 

aS.S 

aS.S

a6 

62 

151 

77 

75

75 

73 

71 

70 

67 

65

Jan.

65 

60 

55 

55 

45

40 

42 

42 

40 

35

30 

25 

20 

17 

15

13 

12 

10 

8.8 

7.4

6.5 

6 

6 

6 

6

6.8 

7.4 

8.2 

8.5 

9.8 

11

Feb.

10 

9

a

7.5 

7

7 

5.5 

6 

8.5 

8.5

8 

8 

8 

8 

8

8.5 

9 

10 

12 

15

13 

13 

14 

15 

16

17 

18 

17

Month

Octo 

Hove 

Dees

Ca

Janu 

Febr 

Marc 

Apr-1 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946 

ary

.......................

ter year 1948-49 ...............

Mar.

17 

17 

16 

15 

14

13 

12 

12 

13 

14

16 

15 

16

17 

2O

22 

25 

30 

35 

4O

30 

35 

33 

32 

30

30 

35 

4O 

38 

37 

35

Apr.

37 

40 

40 

45 

60

7O 

85 

8O 

90 

100

113 

119 

128 

144 

158

176 

188 

2 OS 

222 

246

280 

510 

683 

690 

540

548 

528 

457 

412 

418

May

506 

505 

463 

472 

469

492 

506 

447 

295 

417

764 

893 

793 

1,060 

575

680 

533 

341 

310 

237

240 

366 

500 

580 

631

633 

544 

443 

372 

334 

263

fol^ys «-lnura

179.3 7.4 

168.1 9.1 

897.7 151

40,747.0 897

719.4 65 

294.5 18 

754 40 

7,415 690 

15,664 1,060 

4,474 350 

882 36 

490 20 

236.7 11

32,174.7 1,060

June

202 

251 

239 

305 

306

350 

349 

308 

273 

263

235 

190 

169 

151 

130

107 

87 

68 

58 

48

43 

40 

39 

38 

38

38 

38 

37 

37 

37

Minimum

July

36 

35 

34 

34 

33

33 

33 

32

31 

31

30 

30 

30 

29 

29

28 

28 

28 

28 

27

27 

26 

26 

26 

25

24 

24 

23 

21 

21 

20

Aug.

20 

20 

19 

19 

19

19

19 

19 

18 

18

18 

18 

17 

17 

16

16 

16 

15 

15 

14

14 

14 

13 

13 

13

13 

12 

12 

12 

11 

11

Sept.

11 

10 

9.8 

10 

10

9.4 

9.1 

9.1 

9.1 

S.8

8.5 

8.2 

.9 

.6 

.4

.4

.1 

.1 

7.1 

6.8

6.8 

6.5 

6.5 

6.5 

6.5

6.5 

6.5 

6.5 

6.5 

6.5

 .._ Runoff In Mean acre-feet

4.5 5.78 356 

4.7 5.60 333 

4.7 29.0 1,780

4.5 111 80,820

6 23.2 1,430 

5.5 10.5 584 

12 24.3 1,500 

37 247 14,710 

237 505 31,070 

37 149 8,870 

20 28.5 1,750 

11 15.8 972 

6.5 7.89 469

4.5 88.1 63.82O

a No gage-height record; discharge computed on basis of records for stations on nearby streams. 

Note.- Stage-discharge relation affected by Ice Jan. 2-18, 22-25, Feb. 2-8, 10-15, Feb. 17 to 

Apr, 10.
MOKELUMNE RIVER BASIN 

Middle Pork Mokelumne River at West Point, Calif.

297

caption. - Water-stage recorder, lat. 38°23'15", long. 120°31'40", in sec. 10, T. 6 N,, S. 

J-3 E-. 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).

October 1911 to October 1926 at site

Drainage area.- 67.2 square miles.

Records available- October 1926 to September 1949. 

aoout i.iiuo reet upstream.

Average discharge. - 37 years (1912-49), 54.1 second-feet.

Extremes.- Maximum discharge during year, 403 second-feet Mar. 3 (gage height, 3.29 feet); 

minimum recorded, 2.5 second-feet Oct. 2, but may have been less during period of indefinite stage-discharge relation in September.

1911-49: 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 second-feet} 

practically no flow Aug. 23 to Sept. 14, 1931, and no flow during part of day Sept. 9,

Remarks . - Records good except those for July to September, which are fair. Beginning in 

January 1940 flow slightly regulated by Calaveras Reservoir (capacity, 1,740 acre-feet), 

6 miles above station. Several small diversions above station.

Rating table, water-year 1948-49, except period of indefinate stage-discharge relation 

(gage height, In feet, and discharge, in second-feet) 

(Backwater corrections applied Oct. 1-3, June 9)

0.8 2.9 1.2 19 2.0 105 

.9 5.0 1.3 26 2.4 180 

1.0 8.5 1.5 42 2.8 270 

1.1 13 1.7 63 2.9 296

Discharge, In second-feet, water year October 1948 to September 1949

Pay

1 

2 

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

3.8 

4.0 

3.8 

3.8 

4.5

4.2 

4.2 

3.8 

3.6 

3.6

3.8 

4.5 

5.3 

6.2 

5.6

5.6 

5.3 

5.0 

5.0 

5.0

4.8 

4.8 

4.8 

4.8 

4.2

4.8 

5.0 

5.0 

5.3 

6.2 

5.3

Nov.

6.2 

8.9 

12 

9.4 

7.7

6.6 

5.9 

5.6 

6.2 

6.2

6.2 

6.2 

6.2

5.9 

5.9

7.0 

7.3 

6,6 

6.6 

6.2

6.2 

5.9 

6.2 

6.2

5,6

5.6 

5.9 

5.3 

5.6 

6.6

Dec.

6.2 

6.2 

8.1 

8.1 

14

13 

11 

12 

9.8 

8.9

8.5 S.'l 

20

19 

15

13 

17 

14 

11 

11

11 

10 

9.4 

7.0 

9.4

17 

30 

21 

17 

13 

13

Jan.

24 

25 

13

11 

11

12 

12 

12 

8,9 

7.7

8.9 

10 

9.8 

9.4 

8.5

7.7 

8,5 

8.9 

12 

15

13 

14 

17 

13

11

11 

11 

11 

12 

12 

12

Feb.

12

11 

12 

12 

12

12 

14 

14 

15 

18

26

17 

15 

14 

14

15 

22 

31 

30 

30

26 

30 

37 

51 

45

46 

51 

44

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49- ......................

Mar.

46

77 

281 

161 

94

71 

59 

53 

49 

56

111 

176 

118 

86 

73

110 

107 

92 

110 

126

105 

104 

105 

102 

93

84 

82 

84 

79 

76 

71

Apr.

68 

71 

73 

76 

83

93 

93 

93 

96 

104

114 

122 

122 

124 

133

135 

140 

138 

135 

133

136 

150 

162 

162 

162

148 

144 

136 

126 

117

Seeondfoot-days

145.6 

197.9 

391.7

15,237.9

372.3 

676 

3,041 

3,589 

2,934 

908 

234.4 

142.1 

147.8

12,779.8

my

108 

108 

107 

104 

99

96 

96 

96 

93 

89

89 

93 

107 

129 

124

112 

107 

102 

102 

99

93 

89 

84 

84 

84

83 

82 

75 

70 

67 

63

Maximum

6.2 

12 

30

271

25 

51 

281 

162 

129 

56 

13 

5.6 

6.2

281

June

56

54 

50 

47 

44

44 

42 

41 

39 

34

33 

30 

30 

29 

27

25 

24 

25 

25 

24

22

20 

22 

21 

20

18 

17 

16 

15 

14

July

13 

12 

11 

11 

10

10 

9.5 

9.5 

9.0 

8.5

8.0 

7.5 

7.5 

7.0 

7.0

6.5 

6.0 

6.0 

6.0 

6.0

6.0

6.0 

5.8 

5.8 

5.8

5.8 

5.8 

5.6 

5.6 

5.6 

5,6

Aug.

5.6 

5.6 

5.4 

5.4 

5.3

5.2

5.1 

5.0 

4.9 

4.8

4.7 

4.6

4.5 

4.4 

4.4

4.4 

4.4 

4.3 

4.3 

4.3

4.3 

4.2 

4.2 

4.2 

4.2

4.1 

4.1 

4.1 

4,1 

4.0 

4.0

Minimum .Mean

3.6 4.70 

5.3 6.60 

6.2 12.6

3.2 41.6

7.7 12.0 

11 24.1 

46 98.1 

68 120 

63 94.6 

14 30.3 

5.6 7.56 

4.0 4.58 

3.9 4.93

3.6 35.0

Peak discharge (base, 200 seo.-ft.).- Mar. 3 (4:30 p.m.) 403 sec. -ft.; Mar. 12 (7:30 a.

Sept.

4.0 

4.0 

3.9 

3.9 

3.9

3.9 

3.9 

4.0 

4.2

4.4

4.6 

4,8 

5.0 

5.E 

5.4

5.6 

5.8 

6.0 

6.2 

6.2

6.0 

5.9 

5.7 

5.6 

5.4

5.2 

5.0 

4.8 

4.7 

4.6

Runoff In 

acre-feet

289 

393 

777

30,240

738 

1,340 

6,030 

7,120 

5,820 

1,800 

465 

282 

293

25,350

m.) 212 aeo ft.

Note.- Stage-discharge relation indefinite June 24 to Sept. 30; discharge interpolated between 

7 discharge measurements.
298 MOKELUMNE RIVER BASIN 

South Fork Mokelumne River near West Point, Calif.

Location.- Watqr-stage recorder, lat. 38°22', long. I20°33', in SWir sec. 16 T. 6 N., R. 13 

E., 600 feet downstream from Sawyer Bridge, 2 miles upstream from Middle Pork, and 2.5 

miles southwest of West Point. Altitude of gage, about 2,000 feet (from topographic 

map).

Drainage area.- 73.8 square miles.

Records available.- October 1933 to-September 1949. .

Average discharge.- 16 years, 78.7 second-feet.

Extremes.- Maximum discharge during year, 835 second-feet Mar. 3 (gage height, 6.70 feet); 

minimum, 4.4 second-feet Sept. 23.

1933-49: 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 period of ice effect, which are fair. Small 

diversions above station.

Rating table, water year 1948-49, except period of Ice effect 

(gage height, in feet, and discharge in second-feet) 

(Backwater corrections applied July 14 to Sept. 30)

3.4

3.5

3.6

3.7

3.8

3.9

4.4

6.0

8.7

12

17

23

4.0' 

4.2 

4.4 

4.6 

4.8 

5.1

31

48

67

90

116

160

5.3 

5.6 

5.8 

6.0 

6.3

20Q 

276 

335 

410 

560

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

9.0 

7.3 

8.3 

8.7 

9.7

9.3 

9.0 

8.7 

9.3 

9.3

9.7 

15 

14 

16 

15

14 

13 

12 

12 

11

11 

11 

10 

11 

11

11 

10 

10 

10 

12 

13

Nov.

13 

18 

19 

19 

16

15 

14 

13 

13 

13

12 

12 

12 

12 

12

12 

13 

14 

13 

13

13 

13 

13 

13

13

13 

13 

13 

14 

13

Dec.

13 

13 

17 

20 

23

27 

20 

23 

20 

18

17 

16 

38 

34 

35

22 

32 

28 

22 

*21

20 

17 

19 

16 

18

30 

65 

36 

28 

24 

22

Jan.

35 

b40 

*b20 

b!8 

b!7

b!9 

b20 

b20 

b!6 

b!3

b!6 

b!8 

b!7 

b!6 

b!4

bl3 

1)15 

*b!6 

b20 

b25

b20 

b25 

b30 

b22 

b20

bl9 

b!9 

b!9 

b20 

b21 

b21

Feb.

*b20 

b!9 

b20 

b20 

b20

b20 

b23 

b25 

b28 

b35

b50 

b40 

b33 

b29 

*28

29 

34 

42 

45 

48

48 

52 

61 

74 

75

74 

78 

64

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946 .......................

ter year 1948-49 .......................

Mar.

59 

103 

554 

277 

132

93 

83 

74 

68 

81

163 

284 

175 

123 

103

148 

140 

119 

141 

150

127 

133 

140 

133 

119

103 

100 

99 

91 

88 

82

Apr.

78 

79 

82 

86 

98

112 

117 

116 

122 

140

162 

173 

171 

180 

196

202 

212 

202 

191 

193

200 

222 

229 

226 

214

193 

185 

173 

164 

154

Secondfoot-days

340.3 

409 

754

20,482.6

624 

1,134 

4,285 

4,872 

3,423 

1,123 

491 

297.7 

252.3

18,005.3

May

148 

148 

144 

138 

132

127 

126 

124 

119 

111

113 

117 

119 

140 

130

120 

116 

115 

115 

111

103 

96 

91 

85 

86

86 

79 

75 

71 

70 

68

Maximum

16 

19 

65

401

T 40 

78 

554 

229 

148 

65 

22 

13 - 

12

554

June

65 

61 

57 

55 

52

51 

49 

48 

46 

43

42 

39 

36 

35 

34

32 

31 

31 

31 

30

29 

27 

26 

26 

27

26 

25 

23 

23 

23

July

Minimum

7.3 

12 

13

6.6

13 

19 

59 

78 

68 

23 

11 

6.2 

4.8

4.8

22 

22 

20 

20 

20

20 

19 

20 

18 

18

17 

16 

16 

17 

15

14 

14 

14 

12 

13

13 

12 

12 

15 

15

15 

14 

13 

12 

11 

12

Aug.

12 

9.7 

10 

9.3 

9.0

9.0 

11 

12 

12 

13

13 

12 

9.T 

9.3 

10

9.7 

8.7 

9.7 

8.4 

9.0

9.3 

9.3 

8.7 

7.2 

7.2

6.2 

9.0 

8.1 

8.4 

7.8 

10

Mean

11.0 

13.6 

24.3

56.0

20.1 

40.5 

138 

162 

110 

37.4 

15.6 

9.60 

8.41

49.3

Sept.

9.3 9.0' 

9.7 

8.1 

7.5

10 

11 

11 

10 

12

11 

10 

5,8 

5.6 

5.2

4.8 

5.8 

6.9 

7.8 

8.4

8.1 

7.8 

5.2 

5.4 

6.2

8.4 

9.3 

11 

11 

11

Runoff in 

acre-feet

675 

811 

1,500

40,620

1,240 

2,250 

8,500 

9,660 

6,790 

2,230 

974 

590 

500

' 35,720

Peak discharge (base. 500 sec.-f t.) <-Mar. 3 (4 p.m.) 835 sec.-ft. 

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
MOXELUMNE RIVER BASIN 299 

Woodbridge Canal at Woodbridge, Calif.

Location.- Differential water-stage recorder and gate-opening recorder, lat. 38°09'10", 

Iong7~121°18<00", in SEf sec. 34, T. 4 N., R. 6 E., at Woodbridge at point of diversion. 

Datum of gage is 32.18 feet above mean sea level {levels by East Bay Municipal Utility 

District).

Records available.- April 1926 to September 1949. 

Average discharge.- 23 years, 122 second-feet.

Extremes.- Maxtoum daily discharge during year, 431 second-feet June 15; no flow for 

several.months.

1926-49:. Maximum daily discharge, 454 second-feet July 4,'1947; no flow during part 

of each year.

Remarks.- Records good except those below 50 second-feet, which are fair. Discharge computed from records of gate openings and effective head as shown by recorders. Canal 

diverts from Woodbridge Reservoir on Moktelumne River in sec. 34, T. 4 N., R. 6 E., for 

irrigation of lands south and west of Woodbridge.

Discharge, in seeond-feet, water year October 1948 to September 1949

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.

238 

227 

217 

213 

215

210 

200 

199 

213

200

188 

198 

182 

187 

200

188 

164 

153 

163 

165

156 

155 

178 

176 

176

180 

175 

156 

148 

152 

146

Nov.

133 

136 

138 

143 

123

119 

118 

110 

118 

134

152 

143 

135 

131 

109

77 

36 

45 

44 

30

30 

25 

16 

19 

16

36 

48 

48 

49 

57

Dec.

60 

56 

59 

58 

56

52 

57 

73 

78 

78

82 

93 

90

90

83

82 

82 

79 

84 

31

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Feb.

mber. ...................................

lendar year 1946

uary. * . >

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

82 

192 

201 

216

246 

287 

292 

305 

282

206 

194 

239 

280 

300

300 

302 

286 

262 

290

312 

347 

340 

313 

324

Secondfoot-days

5,718 

2,518 

1,423

62,271

0 

0 

0 

6,398 

10,459 

11,873 

10,701 

9,408 

8,159

66,657

May

303 

325

326 

343 

337

334 

320 

271 

300 

328

351 

372 

377 

' 336 

319

332 

329 

357 

365 

347

317 

313 

313 

355 

354

362 

368 

347 

345 

353 

360

Maximum

238 

152 

93

415

0 

0 

0 

347 

377 

431 

405 

356 

343

431

June

359 

351 

381 

388 

374

382 

374 

383 

396 

408

398 

394 

416 

417 

431

426 

413 

40O 

391 

389

411 428- 

429 

417 

387

367 

378 

392 

391 

404

July

397 

375 

324 

264 

251

327 

398 

405 

399 

376

380 

392 

397 

405 

397

390 

294 

230 

273 

301

324 

354 

380 

385 

293

306 

345 

347 

343 

333 

316

Minimum

146 

16 

0

0

0 

0 

0 

0 

271 

351 

230 

229 

225

0

AUg.

325 

331 

342 

347 

342

332 

273 

229 

270 

313

337 

343 

317 

261 

229

286 

328 

345 

355 

316

283 

234 

274 

314 

341

356 

304 

254 

235 

277 

315

Mean

184 

83.9 

45.9

170

0 

0 

0 

213 

337 

396 

345 

303 

272

183

Sept.

324 

343 

307 

301 

271

250 

279 

285 

271 

262

252 

231 

268 

286 

307

297 

273 

243 

230 

274

283 

275 

278 

285 

257

230 

254 

261 

257 

225

Runoff 'in 

acre-feet

11,340 

4,990 

2,820

123,500

0 

0 

0 

12,690 

20,750 

23,550 

21,230 

18,660 

16,180

132,200
MOKELUMNE RIVER BASIN

Dry Creek near Gait, Calif.

Location.- Water-stage recorder, lat. 38°15', long. 121°13' , in NE£ Sec. 32, T. 5 N., R. 7 

E. , a miles downstream from Coyote Creek and 4 miles east of Gait.

Drainage area.- 325 square miles.

Records available.- October 1944 to September 1949. December 1926 to September 1933 at 

site 4 miles downstream .

Extremes.- Maximum discharge during iyear, 7,620 second-feet Mar. 4 (gage height, 13.51 

feet); from rating curve extended above 13,100 second-feet; no flow for several months. 

1.926-33, 1944-49: 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. 

station for irrigation.

Many small diversions above

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dee.

O 

O 

0 

0 

0

O 

0 

O 

O 

0

0 

0

o

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.7 

0

Jan.

0 

34 

46 

21 

11

6.8 

5.5 

2.5 

.1

0

0 

0 

0 

0 

0

0 

0 

0 

0 

33

51 

163 

210 

125 

81

56 

41 

33 

28 

25 

23

Feb.

21 

20 

21 

30 

182

175 

253 

204 

121 

88

124 

223 

128 

88

66

56 

49 

54 

60 

58

56 

51 

67 

83 

94

96 

224 

145

Month

Octo 

Nove 

Dece

Ca

janui 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ........................

Mar.

104 

211 

2,620 

5,090 

1,140

644 

4O6 

315 

261 

303

569 

773 

968 

503 

 355

457 

392 

301 

371 

960

489 

384 

605 

484 

367

294 

247 

224 

195 

176 

165

Apr.

151 

137 

126 

117 

108

102 

93 

86 

80 

75

70 

68 

62 

56 

51

46 

42 

37 

30 

26

23 

21 

20 

19 

17

16 

15 

15 

10 

7.1

Secondfoot-days

0

0 

.7

17,634.?.

995.9 

2,837 

20,373 

1,726.1 

102.7 

0 

0c 

0

26,035.4,

May

3.0 

2.Q 

1.4 

3.6 

5.7

3.8 

2.0 

1.4 

1.8 

2.6

2.3 

1.4 

.6 

.2 

.2

7.5 

7.6 

6.9 

6.2

7.1

' 10 

8.5 

6.4 

5.5 

3.0

1.5 

.5 

0 

0 

0

o

Maximum

0 

0 

.7

1,100

210 

253 

5,090 

151 

10 

0 

0 

0 

0

5,090

June

'

July

Minimum

0 

0 

0

0

0 

20 

104 

7.1 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

.02

48.2

32.1 

101 

657 

57.5 

3.31 

0 

0 

0 

0

71.3

Sept.

Runoff In 

acre-feet

0 0* 

1.4

34,970

1,980 

5,630 

40,410 

3,420 

204 

0 

0 

0 

0

51,650

Peak discharge (base. 600 sec.-ft.).- Mar. 4 (6 a.n.) 7,620 sec.-ft.j Mar. 13 (18s30 a.m.) 1,270 

seo.-ft.. Mar. 20 (8 a.m.) 1,180 sec.-ft.
MOKELUMNE RIVER BASIN 301

North Pork Cosumnes River at Cosumnes Mine, Calif.

Location.- Water-stage recorder, lat. 38°40', long. 120°32', in SVf£ sec. 34, T. 10 N., R. 

13 E., 0.3 mile downstream from Cosumnes Mine, j!_.5 miles north of Grizzly Flat, 4.3 

miles upstream from Steeley Flat, and 15 miles southeast of Placervllle. Altitude of 

gage, about 3,170 feet {from topographic map). -Prior to Aug. 13, 1949, at site 0.2 

mile upstream at different datum.

Records available.- Octob'er 1948 to September 1949..

Extremes.- Maximum discharge during year, 350 second-feet Apr. 22 (gage height, 2.96 feet, 

site and datum then in use); minimum, 2.3 second-feet Sept. 21, 22 (gage height, 1.42 

feet).

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

 wnicn are fair.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16 

17 

IB 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.5

3.3 

3.3 

3.3 

3.5

3.5 

3.5 

3.3 

3.3 

3.3

3.3 

3.7 

4.9 

4.9

4.7

4.5 

4.1 

3.9 

3.7 

3.9

3.7 

3.5 

3 .-6 

3.5 

3.5

3.5 

3.5 

3.5 

4.1 

4.9 

5.2

Octo

Hove 

Dece

Ca

Janu 

Febr 

Bare, 

Aprl

Mflv

June 

July 

Augu 

Sept

Ha

Nov.

8.1 

19 

19 

15 

9.4

7.8 

6.6 

6.2 

5.6 

5.6

5.6 

, 5.4 

5.4 

5.2 

5.9

6.6 

8.2 

6.6 

6.2 

6.2

5.9 

5.6

5.4 

5.4 

5.4

5.6 

4.3 

5.6 

4.9

5.2

Dec.

4.9 

5.4 

6.4 

7.4 

8.6

7.4 

9.4 

13 

10 

*9.4

8.2 

8.6 

19 

16 

18

18 

15 

11 

11 

11

11 

15 

15 

12 

21

18 

15 

11 

11 

10 

11

Jan.

15 

13 

b!2 

b!2 

bll

bll 

blO 

blO 

10 aio

alO 

aio 

alO 

*blO 

blO

blO 

blO 

blO 

blO 

blO

blO 

blO 

9.8

a-10

Feb.

alO

*blO 

blO

11 

12

13 

13 

14

13 

15 

17 

17 

17

19 

19 

18

Month

lendar year

ter year 1948-49 .......................

Mar.

19 

24 

32 

28 

24

22 

21 

20 

20 

24

32 

31 

29 

27 

27

37 

39 

39 

45 

45

42 

43 

38 

34 

33

32 

37 

39 

38 

38 

36

Apr.

36 

41 

43 

52 

63

73 

78 

84 

91 

117

144 

160 

172 

195 

218

235 

250 

248 

252 

255

275 

300 

308 

314 

298

278 

270 

255 

242 

222

Secondfoot-days

117.8 

216.9 

367.7

-

323.8 

348 

995 

5,569 

5,135 

1,207 

300.1 

134.8 

88.9

14,804

May

218 

218 

210 

200 

192

188 

185 

180 

160 

153

175 

195 

205 

262 

222

208 

190 

162

162 

148

137 

130 

132 

132 

134

152 

123 

.108 

97 

93 

84

Maximum

5.2 

19 

21

-

15 

19 

45 

314 

262 

75 

17 

5.9 

3.7

314

June

75 

72 

68 

67 

64

63 

60 

57 

53 

52

48 

45 

41 

39 

36

34 

31 

31 

30 

28

26 

25 

23 

22 

22

21 

20 

19 

18 

17

July

17 

16 

15 

15 

14

14 

13 

13 

12 

11

11 

10 

9.8 

9.4 

8.6

8.6 

8.2 

7.4 

7.2 

7.2

6.9 

6.9 

6.9 

6.9 

6.9

6.6 

6.4 

6.2 

6,2 

6.4 

6.4

Minimum

3.3 

4.3 

4.9

-

19 

36 

84 

17 

6.2 

3.4 

2.4

2.4

Aug.

5.9 

5.6 

5.2 

4.7

4.7

4.7 

4.5 

4.5 

4.3 

4.5

4.5 

4.5 

4.3 

4.3 

4.2

4.2 

4.2

4.0 

4.0 

3.8

3.8 

3.7 

3.5

3.5

3.5

3.4

3.7 

5.2 

5.2

4.5 

4.2

Mean

3.80 

7,23 

11.9

-

10.4 

12'.4 

32.1 

186 

166 

40.2 

9.68 

4.35 

2.96

40.6

Sept.

3.7 

3.5 

3.3 

3.3 

.3.2

3.2 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

2.9

2.8 

2.8 

2.6 

2.5 

2.5

2.5 

2.4 

2.5 

2.5 

2.6

2.6 

2.9

3.4 

3.7 

3.5

Runoff in 

acre-feet

234 

430 

729

-

642 

690 

1,970 

11,050 

10,190 

2,390 

595 

267 

176

29,360

* Winter discharge measurement made on this day.

a Ho gage-height records discharge computed on basis of records for stations on nearby

b Stage-discharge relation affected by ice.
MOKELUMNE RIVER BASIN

North Fork Cosumnes River near El Dorado, Calif.

Location.- Water-stage recorder, lat. 38 0 35'20", long. 120°SO'35", in SW£ sec. 35, T. 9 ft., 

K. 10 K., 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). Prior to Oct. 1, 

1948, at site 1,000 feet upstream.

Drainage area.- 202 square miles.

Records available.- October 1933 to December 1941, October 1948 to September 1949. August 

1911 to September 1933 at site about l| miles upstream.

Average discharge.- 31 years (1911-41, 1948-49), 194 second-feet.

Extremes.- Maximum discharge during year, 2,400 second-feet Mar, 3 (gage height, 7.20 feet); 

minimum, 0.6 second-foot Sept. 13, 14.

1911-41, 1948-49: 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 part of 1924, 1926, 1931, 1933, 1934.

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

rair. Diversions above station for irrigation.

Rating table, water year 1948-49 (gage height. In feet, 

and discharge, in second-feet)

0.4 0.6 0.9 8.2 2.0 69 4.7 520 

.5 1.2 1.0 11 2.4 103 5.1 6SO 

.6 2.5 1.2 18 2.7 130 5.8 1,090 

.7 4.1 1.4 28 3.3 190 6.3 1,500 

.8 6.0 1.6 39 4.2 370 7.2 2,400

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6.2 

5.2 

5.0 

4.7 

4.5

4.5 

4.7 

4.9 

4.9 

4.7

4.7 

4.7 

5.0 

7.8 

12

12 

11 

10 

10 

10

9.1 

6.7 

5.6 

5.6 

6.4

6.7 

6.7 

6.9 

7.1 

7.5 

9.6

Nov.

12 

16 

52 

63 

36

24 

20 

18 

16 

15

15 

15 

15 

15 

16

18 

22 

28 

23 

19

18 

17 

17 

17 

17

16 

17 

17 

15 

16

Dec.

15 

15 

19 

26 

26

55 

45 

46 

45 

36

32 

28 

56 

109 

67

55

54 

61 

50 

41

39 

38 

34 

30 

23

40 

89 

84 

60 

52 

47

Jan.

102 

147 

75 

47 

49

50 

54 

46 

41 

30

27 

36 

40 

37 

32

32 

36

31 

34 

66

52

70 

71 

54 

50

d45 

d45 

d42 

d40 

d40 

d40

Feb.

d40 

40 

47 

58 

106

80 

117 

88 

76 

80

266 

158 

104 

88 

82

77 

83 

104 

108 

118

112 

122 

194 

177 

167

161 

181 

159

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year

ter year 1948-49 .......................

Mar.

151 

273 

1,800 

812 

451

340 

284 

256 

218 

242

427 

698 

466 

502 

314

469 

436 

379 

424 

457

400 

436 

508 

433 

360

318 

308 

332 

308 

298 

280

Apr.

258 

262 

294 

304 

334

364 

382 

382 

403 

445

499 

528 

536 

548 

572

592 

624 

604 

596 

576

584 

624 

656 

660 

632

580 

556 

532 

514 

481

Secondfoot-days

214.4 

' 625 

1,417

-

1,561 

3,193 

13,380 

14,922 

10,975 

2,411 

242.2 

48.1 

36.5

49,025.2

Peak discharge (base, 1,000 sec. -ft.).- Mar. 3 (4:30 D

May

454 

454 

439 

424 

406

391 

388 

379 

358 

342

352 

368 

397 

469 

454

409 

397 

362 

348 

352

322 

302 

294 

292 

294

294 

286 

264 

238 

220 

226

Maximum

12 

63 

109

-

147 

266 

1,800 

660 

469 

181 

20 

2.7 

3.6

1,800

June

181 

170 

158 

148 

144

139 

131 

126 

116 

108

101 

91 

83 

76 

70

62 

55 

52

51 

48

42 

39 

35 

33 

30

28 

26 

24 

' 23 

21

July

20

18 

18 

16 

16

14 

12 

13 

12 

11

9.6 

9.1 

8.8 

7.3 

6.7

5.2 

5.0 

4.5 

4.1 

3.8

3.5 

3.0 

2.7 

2.5 

2.5

2.4 

2.5 

2.4 

2.2 

2.2 

2.2

Aug.

2.2 

2.5

2.1 

2.0 

1.7

1.3 

1.6 

1.5

1.1 

1.1

1.2

1.3 

1.3 

1.6 

1.5

1.6 

1.6 

1.6 

1.5 

1.3

1.2 

1.1

1.2 

1.2 

1.2

1.0 

1.1 

1.6 

1.8 

2.4 

2.7

Minimum Mean

4.5 6.92 

12 20.8 

15 45.7

-

27 50.4 

40 114 

151 432 

258 497 

220 354 

21 80.4 

2.2 7.81 

1.0 1.55 

.7 1.22

.7 134

m. ) 2,400 sec. -ft-.

Sept.

2.4 

1.7 

1.2 

.8 

.7

.8 

.8 

.8 

.7 

1.0

1.0 

.8 

.7 

.7 

1.0

1.1

a.o

.8 

.8 

1.0

1.0 

1.0 

1.3 

2.1 

1.2

-1.1 

1.8 

1.6 

2.0 

3.6

Hunof f In 

acre-feet

425 

1,240 

2,810

-

3,100 

6,330 

26,540 

29,600 

21,770 

4,780 

480 

95 

72

97,240

d Doubtful gage^neight record; discharge computed on basis of 1 discharge measurement and weather 

records.
MOKELUMNE RIVER BASIN 303

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., 

KT 8 K. , 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 1949.

Average discharge.- 42 years, 466 second-feet.

Extremes.- Maximum discharge during year, 13,500 second-feet Mar. 3 (gage height, 8.72 

feet) , from rating curve extended above 9,000 second-feet; minimum, 2.2 second-feet 

Sept. 27.

1907-49: Maximum discharge, 26,200 second-feet Mar. 31, 1940 (gage height, 11.66 

feet), from rating curve extended above 9,000 second feet; no flow during parts of many 

years.

Flood in March 1907 reached a stage of 16.3 feet.

Remarks.- Records good from 200 to 2,000 second-feet, fair above and below. 

above station for irrigation.

Diversions

Rating table, water year 1948-49 (gage height, in feet,

and discharge, in second feet)

(Shifting-control method used Oct. 1 to Kov. 3,

Feb. 14 to Mar. 2, July 1-30, Sept. 1-30)

1.6 3.2 2.3 55 3.5 395 5.5 2,740 

1.7 6.0 2.4 7^0 3.8 590 6.0 3,790 

1.8 10 2.7 126 4.1 840 6.5 5,100 

2.0 22 2.9 176 4.5 1,270 7.0 6,720 

2.2 42 3.2 272 5.0 1,940 7.7 9,400

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

10 

10 

9.6 

9.2 

8.8

8.0 

8.0 

7.6 

7.2 

7.6

9.2 

10 

10 

10 

10

21 

22 

18 

17 

17

15 

15 

13 

11 

10

10 

11 

11 

12 

11 

11

Kov.

14 

23 

62 

101 

90

61 

45 

39 

35 

33

32 

32 

31 

31 

32

38 

43 

47 

51 

45

40 

39 

38 

38 

36

35 

35 

35 

34 

33

Dec.

34 

32 

39 

46 

55

67 

116 

81 

92 

80

68 

61 

68 

211 

188

118 

109 

126 

113 

90

83 

83 

78 

67 

60

60 

215 

238 

163 

124 

126

Jan.

225 

330 

212 

118 

90

103 

113 

105 

94 

73

54 

62 

68 

76 

72

68 

64 

66 

85 

153

150 

331 

315 

219 

148

133 

131 

120 

113 

116 

111

Feb.

109 

105 

 116 

145 

360

290 

407 

323 

238 

219

671 

496 

304 

248 

219

203 

209 

238 

255 

269

262 

258 

400 

380 

380

420 

527 

413

Month

Ooto 

Hove

Deee

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 194£ .......................

ter year 1948-49 .......................

Mar.

355 

1,250 

9,010 

3,310 

1,510

Ii020 

759 

690 

590 

674

1,310 

2,230 

1,420 

995 

804

1,390 

1,190 

962 

1,260 

1,400

1,070 

1,160 

1,660 

1,260 

973

813 

733 

750 

699 

642 

620

Apr.

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1,

1,

1, 

1, 

1,

1, 

1,

1,

1, 

1, 

1,

Secondfoot -day s

360.2 

1,248 

3,091

135,694.3

4,118 

8,464 

42,509 

31,814 

21,395 

5,524 

851.6 

191.6 

135.4

119,701.8

Peak disoharse (base, 2,000 sec. -ft.).- Mar. 3 (12:30

555 

548 

583 

590 

642

733 

768 

777 

813 

900

050 

160 

180 

190 

260

310 

370 

330 

290 

240

250 

340 

420 

440 

400

270 

200 

130 

080 

995

May

910 

920 

880 

840 

804

759 

750 

733 

699 

642

650 

699 

759 

900 

973

822 

777 

716 

674 

690

620 

569 

548 

548 

555

555 

548 

507 

468 

437 

443

Maximum

22 

101 

238

3,140

331 

671 

9,010 

1,440 

973 

390 

58 

9.6 

9.2

9,010

June

390 

355 

334 

312 

301

294 

286 

276 

262 

245

228 

212 

197 

182 

168

153 

138 

128 

126 

122

105 

101 

94 

88 

83

78 

73 

68 

64 

61

July

58 

54 

51 

50 

46

45 

42 

39 

39 

36

34 

31 

30 

28 

25

23 

22 

20 

19 

18

17 

15 

15 

15 

13

12 

12 

11 

11 

 11 

9.6

Aug.

9.2 

9.2 

9.6 

8.4 

7.6

7.2 

6.8 

6.0 

6.0 

6.0

5.7 

5.4 

6.0 

6.0 

6.0

5.4 

6.0 

5.7 

5.7 

4.8

5.4 

5.4 

4.8 

4.8 

4.8

4.5 

4.8 

5.4 

5.4 

6.4 

7.2

Minimum Mean

7.2 . 11.6 

14 41.6 

32 99.7

3.9 371

54 133 

105 302 

355 1,371 

548 1,060 

437 690 

61 184 

9.6 27.5 

4.5 6.18 

3.2 4.51

3.2 328

Sept.

9.2 

8.4 

7.2 

6.8 

6.0

5.1 

4.8 

3.9 

3.9 

3.9

3.4 

3.4 

3.9 

' 3.9 

3.6

4.2 

4.5 

4.5 

3.6 

4.2

4.2 

3.2 

3.4 

3.4 

3.4

3.6 

3.2 

4.2 

3.9 

4.5

aSre-fee?

714 

2,480 

6,130

269,200

8,170 

16,790 

84,320 

63,100 

42,440 

10,960 

1,690 

380 

269

237,400

p.m.) 13,500 sec. -ft.} Mar. 12 (8 a.m.)

2,78O sec.-ft.
304 MOKELUMNE RIVER BASIN 

Cosumnes River at McConnell, Calif.

Location.- Water-stage recorder, lat". 38°22', long. 121 0 21', in OmochomneB Grant at bridge 

on 0. S. Highway 99, 0.2 mile south of McConnell, 1 mile downstream from'Deer Creek and 

7 miles north of Gait, Sacramento County. Altitude of'gage, about 32 feet (from 

topographic map).

Drainage area.- 730 square miles.

Records available.- October 1943 to September 1949 in reports of Geological Survey. 1931- 

40, 1941-42 (gage heights only during high-water periods) and 1942-49 in reports of 

Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 14,700 second-feet Mar. 4 (gage height, 44.03 

reet); no flow during several months.

1943-49: Maximum discharge, 15,800 second-feet Feb. 3, 1945; maximum gage height, 

that of Mar. 4, 1949; no fltow during parts of each year.

1931-40, 1941-42: MaxlmuV stage recorded, 45.94 feet Feb. 23, 24, 1936,

R-eroarks.- Records good. Diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Oay

1 

2 

3 

4

5

6 

7 

8 

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.

1.7 

2.7 

5.6 

112 

113

86 

56 

26 

36 

23

21 

19 

19

17 

20

19 

33 

38 

39 

41

33 

29 

26 

25 

24

23 

19 

19 

 20 

19

Dec.

17 

19 

20 

24 

36

45 

67 

99 

74 

83

67 

59 

55 

73 

225

171 

121 

108 

123 

100

83 

76 

73 

67 

63

60 

94 

244 

204 

147 

116

Jan.

158 

276 

304 

186 

118

99 

107 

112 

102 

b90

b71 

b54 

b61 

bE9 

b68

b61 

60 

55 

68 

100

154 

226 

629 

458 

268

182 

154 

141 

128 

121 

116

Feb.

108 

108 

104 

112 

182

469 

425 

638 

356 

261

313 

940 

455 

291 

236

212 

192 

194 

214 

223

234 

225 

259 

381 

359

359 

674 

598

Month

Octo 

Hove 

Dece

ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194£ .......................

ter year 1948-49 .......................

Mar.

421 

406 

4,990 

fl2,700 

f4,340

2,060 

1,290 

1,010 

822 

855

2,530 

3,160 

2,500 

1,460 

1,100

1,320 

2,040 

1,300 

1,220 

2,750

1,650 

1,260 

2,030 

1,750 

1,280

1,010 

862 

804 

794 

710 

687

Apr.

623 

591 

605 

627 

661

726 

808 

822 

817 

889

1,010 

al,150

al;200

1,220 

1,270

1,280 

1,320 

1,340 

1,290 

1,260

1,240 

1,300 

1,380 

1,440 

1,430

1,320 

1,230 

1,170 

1,120 

1,040

Secondfoot -days

0 

965.0 

2,813

136,712.2

4,796 

9,122 

61,109 

32,179 

21,319 

5,066 

282.9 

0 

0

137,651.9

May

940 

890 

885 

849 

804

764 

738 

734 

722

666

636 

666 

726 

800 

1,02O

885 

795 

742 

678 

674

636 

574 

546 

529 

523

529 

526 

506 

470 

442 

424

Maximum

O 

113 

244

3,230

629 

940 

12,700 

1,440 

1,020 

419 

32 

0 

0

12,700

June

419 

366 

341 

317 

298

287 

271 

258 

243 

227

214 

197 

182 

170 

154

142 

125 

102 

89 

84

89 

67 

66 

63 

64

59 

50 

44 

41 

37

July

29 

30 

32 

32 

29

22 

18 

14 

12 

14

17 

10 

13 

2.4 

1.9

4.2 

2.1 

.3 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Minimum

0 

1.7 

17

0

54 

104 

406 

591 

424 

37 

0 

O 

0

0

Aug.

Mean

0 

32.2 

90.7

374

155 

326 

1,971 

1,073 

688 

169 

9.3 

0 

0

377

Sept.

Runoff in 

acre -feet

0 

1,910 

5,580

271,200

9,510 

18,090 

121,200 

63,830 

42,290 

10,050 

561 

0 

0

273,000

Peak discharge (base, 5.600 see.-ft.).- Mar. 4 (5:30 a.m.) 14,700 sec.-ft.

a No gage-height record; discharge computed on basis of records for station at Michigan Bar.

b Stage-discharge relation affected by ice.

f Computed on baais of partly estimated gage-height record.
MOKELOMNE RIVER BASIN 305

Camp Creek near Camino, Calif.

Location.- Water-stage recorder, lat. 38°41 I , long. 120°33', in NW& sec. 28, T. 10 N., R. 

13 ii., 3 miles upstream from Sly Park Creek and 7.5 miles southeast of Camino. Altitude of gage, about 3,200 feet (from topographic map).

Records available.- October 1948 to September 1949.

x

Extremes.- Maximum discharge during year, 335 second-feet probably Apr. 24 (gage height, 

2.79 reet); minimum, 1.6 second-feet Sept. 24.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Discharge, In second-feet, watar year October 1948 to September 1949

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.

2.2 

2.1 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.3 

2.5 

3.5 

3.5 

3.3

3.0 

2.8 

2.6 

2.6 

2.5

2.5 

2.5 

2.4 

2.3 

2.4

2.4 

2.4 

2.4 

3.0 

3.9 

3.9

Octo 

Hove 

Dece

Ca

Janui 

Pebn 

Marc 

Aprl

MfiV

June 

July 

Augu 

Sept

Wa

Nov.

6.2 

16 

17 

11 

6.4

5.1 

4.8 

4.4 

4.1 

3.9

3.7 

3.7 

3.7 

3.7 

4.8

5.1 

7.2 

5.3 

4.6 

4.4

4.1 

3.9 

3.9 

3.9 

3.7

4.1 

3.5. 

3.7 

4.1 

4.1

Dec.

3.7 

3.7 

4.6 

4.6 

6.7

7.0 

6.7 

8.2 

*7.0 

6.2

5.3 

5.9 

26 

11 

8.6

8.6 

8.2 

7.8 

7.8 

7.8

7.8 

7.8 

7.8 

7.8 

7.8

9.2 

11 

9.2 

9.2 

9.2 

9.2

Month

Jan.

16 

14 

alS 

a!2 

all

alO 

a9 

a8 

a7 

a6

a6 

a6 

*b6.2

I a6 

a7

Feb.

a8

y alO

a!2

16

17 

20

21 

20 

18

lendar year 1948 

&ry

... . . . ... . . .

ter year 1948-49 .......................

Mar.

18 

*27 

48 

36 

26

20 

17 

15 

15 

19

29 

33 

26 

23 

22

37

46 

46 

58 

56

52 

52 

45 

37 

33

30 

37 

42 

41

40 

36

Apr.

39 

46 

51 

66 

77

86 

88 

91 

102 

al20

a!35 

a!50 

a!60 

a!70 

a!90

a210 

a.220 

a230 

a230 

a240

a240 

a250 

a260 

a260 

250

241 

221 

213- 

193 

174

Secondfoot -days

80.6 

164.1 

251.4

-

243.2 

326 

1,062 

5,002 

4,217 

998 

182.3 

82.9 

61.1

12,660.6

May

166 

166 

161 

153 

146

144 

142 

138 

126 

123

132 

148 

166 

221 

180

164 

151 

138 

132 

128

119 

114 

114 

114 

117

119 

114 

104 

96 

93 

88

Maximum

3.9 

17 

26

-

16 

21 

58 

260 

221 

76 

9.6 

3.5 

2.5

260

June

76 

72 

66 

63 

62

60 

56 

53 

48 

45

40 

34 

29 

27 

25

23 

21 

20

eo

18

17 

16 

14 

14 

13

12 

12 

11 

11 

10

Minimum

July

2.1 

3.5 

3.7

-

6 

8 

15 

39 

88 

10 

3.5 

2.2 

1.7

1.7

9.6 

9.2 

8.9 

8.6 

8.2

7.8 

7.8 

7.8 

7.8 

7.0

6.7 

6.4 

6.4 

6.2 

5.6

5.3 

5.1 

5.1 

4.8 

4.6

4.4 

4.4 

4.4 

4.1 

3.9

3.9 

3.9 

3.7 

3.5 

3.5 

3.7

Aug.

3.5 

3.3 

3.0 

a3.0 

a2.9

a2.9 

a2.8 

2.8 

2.8 

2.8

2.8 

2.8 

2.6 

2.5 

2.5

2.5 

2.5 

2.5 

2.4 

2.4

2.4 

2.4 

2.4 

2.3 

2.3

2.3 

2.4 

2.2 

3.3 

3.0 

2.6

Mean

2.60 

5.47 

8.11

-

7.85 

11.6 

34.3 

167 

136 

32.9 

5.88 

2.67 

2.04

34.7

Sept.

2.4 

2.3 

2.2 

2.1 

2.1

2.1 

2.2 

2.1 

2.1 

2.1

2.1 

2.1 

2.1 

2.1 

2.0

2.0 

2.0 

1.9 

1.9 

1.8

1.8 

1.7

1.7 

1.7 

1.7

1.8 

1.9 

2.3 

2.3 

2.5

Runoff In 

acre-feet

160 

S25 

499

-

482 

647 

2,110 

9,920 

8,360 

1,960 

362 

164 

121

25,110

* Winter discharge measurement made on this day. 

' a Ho gage-height record; discharge coaputed on basis of 

nearby streams.

b Stage-discharge relation affected by Ice.

discharge measurement and records for
306 MOKELUMNE RIVER BASIN

Sly Park Creek near Pollack Pines, Calif.

Location.- Water-stage recorder, lat. 38°42' , long. 120°33', in SEij 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 Pollack Pines, and 12 miles east of Placerville. Prior to Aug. 25 at .site 0.3 mile 

upstream.

Records available.- October 1948 to September 1949. March to June 1906 at site 2 miles 

upstream, published as Sly Park Creek at Park.

Extremes.- Maximum discharge during year, 101 second-feet Mar. 19 (gage height, 2.56 feet, 

site and datum then in use);*minimum recorded, 0.1 second-foot Sept. 22.

1906, 1948.-49: Maximum daily discharge, 363 second-feet Mar. 25, 1906; minimum recorded, that of Sept. 22, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Rating tables, water year 1948-49, except periods of Ice effect 

and backwater from vegetation (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Aug. 25 Aug. 26 to Sept. 30

0.3 0.1 0.9 4.3 1.8 40 0.96 0.1 

.5 .8 1.2 10 2.2 69 l.O .3 

.7 2.1 1.5 22 . 2.5 95 1.1 .8

Discharge, in second-feet, water year October 1948 to September 1949 '

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Got0.7 

.7 

.7 

.6 

.9

.9 

.8 

.8 

.8 

.8

1.0 

1.2 

1.7 

1.8 

1.7

1.6 

1.5 

ol.2 

cl.O 

c.9

c.8 

.8 

.8 

.7 

.8

.8 

.8 

.8 

1.1 

1.3 

1.2

Nov.

2.0 

3.8 

6.8 

3.1 

2.0

1.8 

1.7 

l.S 

1.4 

1.4

1.4

1.3 

1.3 

1.3 

1.8

2.0 

2.7 

2.0 

1.8 

1.7

1.6

1.5 

1.4 

1.4 

1.4

1.3 

1.3 

1.3 

1.3 

1.2

Dec.

1.2 

1.3 

1.5 

1.6 

1.7

a5.0 

a4.0 

a3.8 

*3.6 

3.3

3.0 

3.6 

14 

7.7 

7.9

6.0 

4.8 

4.6 

5.3 

4.8

3.9 

4.6 

3.6 

4.3 

3.4

5.0 

11 

8.1 

6.2 

5.5 

5.8

Jan.

16 

14 

b!2 

blO 

b9

8.1 

5.3 

a4.0 

a3.5 

a3.2

a3.0 

83.0 

a3.0 

*b3.0 

b3.0

b3.0 

2.8 

2.9 

3.4 

3.9

3.4 

4.0 

3.8 

5.0 

3.6

3.9 

4.2 

4.8 

5.2 

5.5 

5.7

Feb.

5.5 

4.8 

4.6 

4.3 

5.2

5.7 

5.8 

6.6 

6.6 

8.8

40 

41 

a25 

a!5 

alO

a7

5.7 

8.1 

13 

11

11 

14 

21 

28 

29

28 

29 

30

Month

Octo 

Hove

Deoe

Ca

Janu 

Pebr 

Marc 

Aprl 

Nay.

June 

July 

Augu 

Sept

Wa

mber. .............................

lendar year 

ary

ter year 1948-49 .......................

Mar.

31 

48 

66 

67 

51

42 

38 

35 

35 

46

60 

*67 

56 

49 

46

75 

76 

73 

85 

85

76 

74 

66 

57 

50

49 

54 

61 

55 

55 

50

Apr.

50 

54 

58 

61 

67

71 

71 

71 

74 

80

88 

87 

82 

82 

80

77 

75 

71 

66 

61

58 

57 

55 

52 

47

43 

38 

38 

35 

31

Secondfoot -days

31.4 

56.5 

150.1

-

165.2 

423.7 

1,778 

1,880 

412.9 

93.8 

27.4 

12. Z 

7.7

5,038.9

May

27 

26 

23 

22 

21

18 

18 

16 

16 

14

13 

12 

12 

15 

13

12 

11 

11 

13 

13

11 

9.9 

9.0 

8.5 

7.7

7.0 

6.6 

6.0 

6.4 

7.3 

7.5

Maximum

1.8 

6.8 

14

-

16 

41 

85 

88 

27 

6.4 

1.6 

.6 

.4

88

June

6.4 

5.7 

5.2 

4.6 

4.5

4.2 

4.0 

3.9 

3.8 

3.4

3.4 

3.3 

3.0 

2.9

2.7

2.6 

2.5 

2.6 

2.7

2.6

2.5 

2.3 

2.2 

2.0 

1.9

1.8 

1.8 

1.8 

1.8 

1.7

July

1.6 

1.5 

1.5 

1.3 

1.3

1.3

1.3 

1.2 

1.2 

1.1

1.0 

1.0 

.9 

.9 

.8

.7 

.7 

.7 

.7 

.7

.7 

.6 

.6 

.6 

.6

.5 

.5 

.5 

.4 

.4 

.6

Aug.

0.5 

.4 

.4 

a. 4 

a. 4

a. 4 

a. 4 

a. 4 

a. 4 

a. 4

a. 4 

a. 4 

a. 4

a. 4 

a. 4

a. 4 

a. 4 

a. 4 

h.4 

a. 4

a. 3 

a. 3 

h.3 

a. 3

a. 3

.2 

.3 

.6 

.6 

.5 

.4

Sept.

0.4 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.2

a. 2 

a. 2

a. 2

a. 2 

a. 2 

a. 3 

a. 3 

a. 4

Minimum Hean »£%£

0.7 1.01 62 

1.2 1.88 112 

1.2 4.84 298

-

2.8 5.33 328 

4.3 15.1 840 

31 57.4 3,530 

31 62.7 3,730 

6.0 13.3 319 

1.7 3.13 186 

.4 .88 54 

.3 .39 24 

.2 .26 15

.2 13.8 10,000

* Winter discharge measurement made on this day.

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

streams.

b Stage-discharge relation affected by ice. 

o Baotarater from aquatic vegetation, 

h Computed from staff-gage reading.

records for nearby
GOOSE LAKE BASIN 307

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. 

Hecbrds available.- January 1909 to September 1921 and October 1925 to September 1949 in

 reports of Geological 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, including diversion by North Drew Canal.

Extremes.- Maximum discharge during year, 206 second-feet Apr. 15 (gage height, 2.99

reet}; minimum not determined, occurred during period of ice effect Dec. 11 to Feb. 15.

1909-49: Maximum discharge, 3,000 second-feet Mar. 1, 2, 1910, from rating curve 

extended above 1,200 second-feet; no flow at times.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are poor. Considerable regulation caused by Drew Creek Reservoir, 2 miles above 

station. Since March 1914, North Drew Canal of Lakeview Water Users has diverted water 

around station.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

.9 

1.0

0.6 

2.S 

5.0 

8.O 

12

1.2

1.4 

1.6

2.1 91

2.5 138

3.0 207

Discharge, in second-feet, water year October 1948 to September 1949

Daj

1 

2 

3

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.5 

2.8 

2.8 

3.0 

3.0

3.O 

3.0 

3.0 

3.O 

3.0

3.0 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.3 

2.3 

2.5

2.3 

2.3 

2.3 

2.1

2.1 

2.3

Nov.

2.8 

2.3 

2.5 

2.1

2.1

2.1 

2.1 

2.1 

2.1 

2.3

2.3 

2.1 

2.1 

2.1 

2.3

2.1 

2.1 

1.9 

1.9 

1.7

1.7 

1.7 

1.7 

1.6

1.6

1.4 

1.4 

1.4 

1.4 

1.6

Deo.

bl.4 

bl.4 

bl.6 

bl.6 

bl.6

bl.6 

bl.6 

1.6 

1.6 

1.6

bl.6 

bl.4 

bl.4 

bl.6

bl.5

Month

Ooto 

Hove 

Dece

Ca

Jam. 

Febi 

Marc 

Apr!

June 

Julj 

Augu 

Sept

WE

raber. .............

lendar year 1948. .

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

ter year 1948-49. .

Jan.

1 bl.O

Feb.

bl.O

alO 

all 

a!3 

a!5 

a20

a 20 

825 

28 

32

41

63 

83 

74

Mar.

39

18 

12 

8.0 

7.1

6.8 

6.8 

7.1 

6.8 

7.1

10 

8.4 

8.8 

12

19

18 

18 

20 

22 

18

18 

20 

18 

19 

16

16 

18 

15 

15 

15 

26

Apr.

53 

69 

70 

76 

78

78 

94 

104 

109

118

133 

142 

152 

160 

202

201 

201 

198 

195 

194

194 

192 

165 

119 

34

31 

31 

31 

31 

31

Hay

30 

3O 

31 

32 

37

49 

57 

65 

66 

67

67 

67 

63 

68 

81

85 

82 

76 

75 

69

65 

63 

61 

59 

53

51 

51 

51 

53 

49 

38

June

36 

31 

31 

31 

33

39 

44 

46 

57 

68

75 

80 

79 

79 

79

83 

88 

88 

84 

78

77 

76 

76 

76 

76

69 

69 

76 

77 

74

Drew Creek

Se 

foo t-days

80.1 

58.6 

47.1

6,652.0

31.0 

450. O 

468.9 

3,486 

1,791 

1,975 

1,956 

1,196 

291.6

11,831.3

Discharge in second-feet

Maximum

3.0

2.8

64

83 

39 

202 

85 

88 

73 

65 

18

£02

Minimum

2.1 

1.4

-

6.8

31 

30 

31 

44 

14 

2.3

-

Mean

£.58 

1.95 

1.52

18. 2

1.00 

16.1 

15.1 

116 

57.8 

65.8 

63.1 

38.6 

9.72

32.4

Runoff

acre -feet

159 

116 

93

13,190

61 

893 

930 

6,910 

3,550 

3,920 

3,880 

2,370 

578

23,46O

July

72 

65 

61

61 

61

61 

61 

63 

65 

65

67 

67 

68 

69 

73

71 

70 

71 

72 

68

66 

67 

68 

65 

63

57 

53 

52 

44 

44 

46

Aug.

52 

61 

64 

65 

63

60 

57 

53 

49 

49

46 

44 

42 

39 

39

37 

33 

33 

34 

35

35 

32 

26 

21 

21

23 

20 

14 

16 

16 

15

North Drew 

Canal 

(diversion in 

acre-feet)

-

-

e44 

2,48O 

3,230 

4,420 

2,920 

1,02O

14,110

Sept.

15 

14 

15 

18 

18

17 

17 

17 

18 

17

17 

17 

17 

17 

17

5.6 

2.8 

2.5 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.8 

2.3 

2.3 

2.3 

2.5

Drew Creek 

Reservoir 

(contents in 

acre-feet )t

036,200 

036,200 

036,510

-

037,260 

037,950 

46,27O 

062,530 

62,060 

55,550 

45,230 

37.8OO 

035,450

-

t Contents at end of month.

a Ho gage-height record; discharge computed on basis of records for Cottonwood Creek near Lakeview.

b stage-discharge relation affected by ice.

c Reservoir gage not read at end of month; contents interpolated.

e Apr. £9, 3O only, no record Oct. 1 to Apr. 28.
338 GOOSE LAKE BASIN 

Cottonwood Creek near Lakeview, Oreg.

Location.- Water-stage recorder, lat. 42°14", long. 120°30', in SW£ sec. 39, T. 38 S., R.

 19 E.", 200 yards downstream from Cottonwood Reservoir and 10 miles northwest of

Lakeview. . Drainage area.- 30 square miles. 

Hedords avalXable.- November 1908 to September 1919 and October 1925 to-September 1949 in

 reports' oi' Geological Survey. November 1908 to September-1919 and October 1924 to September 1941 in reports of State engineer.

Average discharge.- 28 years (1909-19, 1924-35, 1938-42, 1946-49), 19.3 second-feet 

Extremes.- Maximum discharge during year, 101 second-feet Apr. 11, 12 (gage height, 3.29

 feet); minimum, 0.2 second-foot Nov. 7, Sept. 30 (gage-height, 1.10 feet).

1908-19, .1924-49: Maximum discharge, between 500 and 1,000 second-feet-during 

period Apr. 26 to May 1, 1927, when natural flow, estimated as 170 second-feet, was 

augmented by water escaping from reservoir through break in outlet conduit above control gate; no flow at times.

Remarks.- Records fair except those for periods of ice effect or no gage-height record,

 wnicn are poor. Since 1923 considerable regulation caused by Cottonwood Reservoir, 

200 yards above station. ,

'Rating table, water year 1948-49, except periods of ice effect 

(gage height, In feet, and discharge, in second-feet) 

(Backwater from debris July 20 to Aug. 24)

Day

1 

2 

3

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.6 

3.9 

3.8 

4.3 

4.8

3.9 

3.5 

3.4 

3.2 

3.1

3.1 

3.1 

3.0 

3.1 

3.0

3.0 

3.0 

2.7 

2.8 

3.0

2.8 

2.8 

2.8 

2.7 

2.7

2.6 

2.4 

2.4 

2.4 

2.5 

2.5

1.2 0.7 1.7 6.2 2.4 25 

1.3 1.4 1.8 7.9 2.6 36 

1.4 2.3 1.9 9.7 2.8 51 

1.5 3.4 2.0 11.7 3.0 69 

1.6 4/7 3. 2 17 3.3 102

Discharge, In second-feet, water year October 1948 to September 1949

NOV:

9.2 

7.9 

8.6 

5.4 

5.0

3.2 

3.7 

3.5 

4.0 

3.8

as.o

a6.0 

a6.0 

aS.O 

ae.o

a6.0 

aS.O 

aS.O 

aS.O 

aS.O

aS.O 

a5. 5 

36.5 

a5.5 

37.0

»b7.0 

b6.0 

b5.0 

b5.0 

b4.5

Oeo.

b4.5 

b4.0 

b3.5 

3.0 

3.1

. b3.0

Jan.

82.0

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

mber. ......................

lendar year 1948 

ary

h. .........................

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

ter year 1948-49. ..........

Feb.

82.0

a2.5 

a2.5 

b2.8 

33.0

83.5 

a4.0 

a4.5 

aS.O 

86.0

a7.0 

a9.0 

alO

Mar.

alo 

alO 

alO 

alo 

alo

alO 

alo 

alO 

alO 

alO

all 

al2 

al3

815

a!7

820 

825 

28 

38 

30

30 

32 

22 

20 

23

19 

21 

20 

20 

18 

19

Apr.

22 

28 

28 

24 

28

31 

33 

44 

89 

98

100 

76 

33 

11

7.0 

7.0 

7.0 

7.0 

13

19 

19 

20 

20 

20

20 

21 

21 

21 

21

May

21 

21 

21 

21 

21

21 

22 

28 

43 

43

43 

43 

43 

49 

88

87 

86 

86 

80 

67

66 

46 

19 

19 

23

34 

40 

41 

42 

36 

27

June

25 

22 

22 

22 

23

25 

26 

26 

35 

62

78 

77 

76 

76 

77

72 

60 

60 

60 

58

58 

49

34

30 

30 

33 

40 

45

Cottonwood Creek

Secondfoot-days

96.9 

165.3 

96.1

7,114.3

62.0 

91. S 

553 

897.3 

1,327 

1,385 

813 

347.4 

54.4

5,889.2

Discharge In seoond-feet Ru

Maximum Minimum Mean a or

July

48

55 

30 

28 

28

24 

13 

E4 

E8 

36

36 

36 

34 

29 

29

31 

34 

34 

33 

31

27 

 E.7 

24 

20 

19

13 

13 

13 

12 

12 

12

noff 

In 

e-feet

4.8 2.4 3.13 192 

9.2 3.2 5.51 328 

3.10 191

190 - 19,4 14,100

2.00 123 

10 - 3.28 182 

38 10 17.8 1,100 

100 7.0 29.9 1,780 

88 19 42. 8 2,630 

78 22 46.2 2,750 

48 12 26.2 1,610 

17 1.9 11.2 689 

2.6 1.0 1.81 ' 108

100 - 16.1 11,680

Aug.

12 

12 

12 

12 

12

11 

11 

11 

11 

14

17 

17 

17 

17 

16T

16 

16 

15 

15 

15

'14 14 

15 

9.6 

2.6

2.5 

2.3 

2.3 

2.2 

2.0 

1.9

Sept.

1.9 

2.0 

1.8 

1.9 

2.6

1.6 

1.6 

1.7 

2.2 

1.9

1.9 

1.7 

1.8 

1.9 

1.8

1.8 

1.8 

1.8 

2.1 

1.6

r.7

1.7

a. 7

1.7 

1.8

1.8 

1.9 

2.4 

1.3 

1,0

Cottonwood 

Creek Reservoir 

(contents In 

acre-feet )t

0 

0 

0

-

0 

0 

0 

3,510 

63,670 

61,950 

683 

0 

0

-

* Winter discharge measurement made on this day.

t Contents at end of month.

a Ho gage-height record; discharge computed on basis of weather records, records for Drew Creek 

near Lakeview, and unpublished records for Bauers Creek and CoxiCreek near Lakeview.

b Stage-discharge relation affected by Ice.

e Reservoir gage not read at encf of month; contents Interpolated from gage readings made near end 

of month.
SACRAMENTO RIVER BASIN 309 

SACRAMENTO RIVER MAIN STEM 

Sacramento River at Delta, Calif.

Location.- Water-stage recorder, lat. 40°56'20", long. 122°24<55", in NW£ see. 35, T. 36 

W-i « 5 W., 0.2 mile downstream from Dog Creek and 0.6 mile southeast «f Delta. Datum 

of gage is 1,075.00 feet above mean' sea level (levels by Bureau of Reclamation).

Drainage area.- 427 square miles.

necoras available.- December 1944 to September 1949.

latremeg,-.Maximum discharge during year, 13,300 second-feet Mar. 18 (gage height, 12.16 

feet ) ;. minimum, 157 second-feet Sept. 24.

1944-49: Maximum discharge, 24,200 second-feet Jan. 7, 1948 (gage height, 15.16 

feet), from rating eurve extended above 14,300 second-feet on (basis-of logarithmic 

plotting; minimum, 148 second-feet Sept. 13, 1945.

Remarks,- Records excellent. Small diversions above station for irrigation.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, in second-feet)

4-0 196 6.5 1,700 9.5 6,360 3.7 146 5.2 745 7 

4-2 252 7.0 2,270 10.0 7,470 3.8 165 5.6 1,O20 8 

4.6 398 7.5 2,920 10. S 9,450 4.O 215 6.0 1,330 8 

S.O 590 8.0 3,620 11.7 11,900 4.4 350 6.5 1,800 

5.5 900 8.5 4,430 4.8 525 7.0 2,350 

6.0 1,260 9.0 5,340 Note.- \Same as preceding table feW. 

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

235 

232 

388 

406 

335

288 

268 

259 

252 

246

249 

252 

246 

259 

259

246 

240 

238 

238 

£38

235 

 235 

235 

235 

235

235 

229 

232 

235 

238 

238

Mov.

693 

588 

574 

402 

335

310 

292 

278 

268 

265

262 

259 

235 

255 

299

328 

350 

302 

328 

328

302 

292 

288 

285 

282

275 

265 

262 

26E 

259

Dec.

259 

259 

285 

265 

302

296 

328 

343 

324 

328

331 

599 

698 

500

411

374 

354 

331 

316 

313

310 

292 

288 

288 

302

296 

- 299 

299 

328 

32ft 

324

Jan.

331 

316 

399 

285 

£96

296 

. 306 

310 

288 

272

299 

299 

292 

278 

275

268 

265 

265 

265 

259

275 

278 

262 

249 

265

265 

262 

259 

252

,. 252 

852

Feb.

252 

259 

262 

275 

255

275 

278 

'262 

259 

486

582 

411 

358 

339 

331

331 

 354 

402 

462 

590,

1,420 

5,730 

3,240 

2,100 

1,830

1,960 

1,910 

1,660

Month

Octo 

Hove 

Dece

Ca

janu 

Febn 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1946 .......................

Peak 'discharge (base, 3,600 'sec. -ft.);- P«

sec. -ft.; Apr. 11' (12 p.m.} 3,690 see. -ft.;

Mar.

1,680 

2,710 

3,010 

2,310 

1,870

1,630 

1,470 

1,350 

1,610 

2,400

3,380 

2,760 

2,240 

' 2,100 

3,170

5,300 

10,500 

11,900 

9,700 

6,600

4,450 3,580- 

2,970 

2,590 

2,300

2,130 

2,060 

, 2,010 

1,860 

1,770 

1.&80

Apr.

1

1 

1

1 

1

2 

2 

2 

2 

2

3 

3 

2 

2 

2

3, 

3 

3, 

3, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

1, 

1,

Secondfoot -days

7,956 

9,743 

10,570

377,799

8,635 

26,873 

105,090 

75,780 

45,781 

14,960 

7,343 

5,712 

5,053

323,496

1ooooo 

CDOhJIQCbO) If)f} O N 00toI^f- t*- O ^1CO« (O p-Ot *~t Co r-\fHCJ Ot iH - s

May

1,580 

2,250 

2,030 

1,800 

1,690

1,690 

1,700 

1,680 

1,800 

2,150

2,280 

2,180 

2,150 

1,850 

1,760

1,600 

1,390 

1,190 

1,090 

1,170

1,080 

978 

957 

936 

956

929 

894 

831 

1,030 

1,150 

1,010

Maximum

406 

693 

, 698

18,600

331 

5,730 

11,900 

3,340 

2,280 

971 

308 

204 

183

11,900

>b. 22 (1 p.m.> E 

Apr. 17 (1 a.m.

June

971 

838 

764 

721 

685

658 

646 

610 

375 

545

520 

495 

466 

452 

434

418 

414 

418 

422 

422

406 

.386 

370 

354 

343

332. 

. 329 

329 

322 

315

.July'

308 

298 

294 

£90 

237

280 

273 

262 

236 

245

239 

236 

233 

233 

233

230 

 227 

221 

218 

215

212 

210 

212 

212 

212

210 

204 

202 

199 

196 

196

.5 2,970 

.0 3,660 

.5 4,430

above 8.5

Aug.

204 

202 

199 

193 

193

196 

196 

191 

191 

191

193 

191 

188 

186 

183

183 

181 

179 

179 

176

.176 

174 

174 

176 

174

174 

172 

174 

179 

174 

170

Minimum Mean

229 257 

25S 325 

259 341

199 1,032

249 "*" 279 

 252 960 

1,350 3,390 

1,630 2,526 

831 1,477 

315 499 

196 237 

170 184 

159 168

159 886

Sept.

167 

165 

163 

163 

165

167 

170 

174 

176 

176

176 

174 

172 

170 

' 170

170 

165 

165 

165 

165

163 

161 

161 159' 

161

165 167' 

176 

183 

179

Runoff in 

acre-feet

15,780 

19,320 

20,970

749,400

17,130 

53,300 

208,400 

150,300 

90..810 

29,670 

14,560 

11,330 

10,020

641,600

),500 sec. -ft.; Mar. 18 (6 a.m.) 13,300 

3, 620' sec. -ft.

947809 O- 51 - 31
310 SACRAMENTO RIVER MAIN STEM

Shasta Reservoir near Redding, Calif.

Location.- Water-stage recorder, lat. 40°43', long. 122°25', in S| sec. 15, T. 33 N.,'R. 

b w., at Shasta Dam on Sacramento River, 2 miles downstream from Squaw Creek and 9.5 

miles north of Redding. Datum of gage Is at mean sea level (levels by Bureau of 

Reclamation).

Drainage area.- 6,665 square miles (excluding Goose Lake Basin). i 

Records available.- November 1942 to September 1949.

Extremes.- Maximum contents during year, 3,808,000 acre-feet May 30, 31, June 1 (elevatlon, 1,040..57 feet); minimum, 2,174,000 acre>-feet Feb. 8, 9; minimum elevation, 

967.15 feet Feb. 9.

1942-49: Maximum contents, that of May 30, 31, June 1, 1949; minimum, 1,960 acrefeet Dec. 21, 1942 (elevation, 616.5 feet).

Remarks.- Reservoir is formed by concrete gravity-type dam completed in 1949; regulation 

or.discharge 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.- Record of contents furnished by Bureau of Reclamation.

Contents, In thousands of acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Dot.

2,663

3,658

2,655

2,651

2,647

2,642

2,637

2,632

2,627

2,620

2,616

2,612

2,607

2,603

2,598

2,592

2,585

2,580

2,576

2,572

2,567

2,563

2,557

2,549

2,544

2,540

2,535

2,531

2,526

2,518

2,511

Hoy. 

- -«-

2,514

2,514

2,514

2,511

2,507

2,502

2,496

2,491

2,487

2,482

2,477

2,473

2,467

2,461

2,457

2,453

2,450

2,446

2,442

2,436

2,430

2,425

2,421

2,417

2,411

8,407

2,401

2,394

2,390

2,385

-

Dao.

2,380

2,377

2,373

2,367

2,364

2,360

2,358

2,356

2,352

2,348

2,343

2,344

2,346

2,344

2,343

2,341

2,338

2,333

2,326

2,323

2,320

2,316

2,311

2,307

2,302

2,296

2,292

2,288

2,285

2,282

2,279

Jan.

2,274

2,270

2,265

2,261

2,256

2,251

2,246

2,242

2,237

2,235

2,231

2,227

2,225

2,222

2,220

2,216

2,213

2,210

2,208

2,203

2,199

2,202

2,202

2,200

2,198

2,197

2,196

2,193

2,193

2,192

2,189

Feb.

2,186

2,183

2,180

2,177

2,178

2,181

2,178

2,174

2,174

2,181

2,190

£,193

2,195

2,195

2,196

2,198

2,201

2,203

2,205

2,210

2,220

2,257

2,280

2,296

2,310

2,324

2,336

2,350

.

-

Mar.

2,362

2,389

2,419

2,443

2,465

2,483

2,498

2,512

2,530

2,564

2,601

2,633

2,659

2,683

2,711

2,752

2,822

2,900

2,980

3,038

3,081

3,122

3,155

3,184

3,209

3,231

3,250

3,269

3,287

3,303

3,319

Apr.

3,333

3,347

3,358

3,370

3,384

3,398

3,414

3,430

3,446

3,461

3,478

3,496

3,514

3,528

3,546

3,564

3,582

3,599

3,615

3,629

3,643

3,656

3,670

3,681

3,691

3,700

3,710

3,717

3,721

3,724

-

Hay

3,726

3,731

3,736

3,740

3; 744

3,748

3,75O

3,750

3,752

3,757

3,761

3,766

3,771

3,774

3,776

3,779

3,782

3,785

3,788

3,791

3,793

3,795

3,797

3,799

3,802

3..8O2

3,802

3,802

3,806

3,808

Si 808

June

3,808

3,805

3,803

3,800

3,793

3,790

3,786

3,783

3,778

3,774

3,767

3,757

3,750

3,741

3,734

3,725

3,715'

3,703

3,69,2

3,683

3,675

3,666

3,658

3,649

3,637

3,625

3,«15

3,604

3,594

3,586

-

July

3,576

3,563

3,549

3,536

3,524

3,513

3,503

3,492

3,481

3,467

3,456

3,446

3,435

3,424

3,413

3,399

3,384

3,372

3,361

3,349

3,336

3,323

3,307

3,292

3,279

3,266

3,254

3,241

3,229

3,213

3,197

Aug.

3,185

3,172

3,160

3,147

3,134

3,119

3,103

3,091

3,078

3,066

3,053

3,040

3,026

3,011

2,999

2,988

2,977

2,965

2,953

2,940

2,926

2,915

£,904

2,894

2,883

2,372

2,858

2,845

2,835

2,825

2,816

Sept.

2,808

2,798

2,787

2,776

2,764

2,754

2,746

2,738

2,730

2,720

2,709

2,701

2,694

2,686

2,679

2,672

2,662

2,653

2,647

2,642

2,637

2,632

2,627

2,619

2,610

2,605

2,601

2,596

2,591

2,S85

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Calendar year 1946...

Sept. 30................

Water year 1946-49...

Elevation 

(feet)t

-

988.47

-

Contents 

(acre -feet)

- '

2,585,000

-

Change In contents 

during month 

(acre-feet)

-3,000

4405 000

-231,000

-81,000

t Elevation at 12 p.m.
SACRAMENTO RIVER MAIN STEM 

Sacramento River at Keswick, Calif.

311

Location.- Water-stage'recorder, lat. 40°36', long. 122°27', in Wj sec. 28, T. 32 N., R. 

5 w., 0.6 mile downstream from Keswlck Dam, 0.6 mlle-upstream from Middle Creek, 1.5 

miles downstream from Keswlck, 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. ~l

Records available.- October 1942 to September 1949. October 1938 to April 1942 at site 

1.5 miles upstream.

Extremes.- Maximum discharge during year, 12,900 second-feet Aug. 17 (gage height, 15.19 

 feet); minimum, 1,810 second-feet Mar. 22 (gage height, 5.55 feet).

1938-49: 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 inf

154 second-feet May 15, 1948 (gage height, 2.00 feet).

iflow; minimum,

Remarks.- Records good. Plow regulated by Shasta Reservoir beginning Dec. 30, 1943 (see 

preceding page). Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1943 to September 1949

ray

1

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,290 

5,280 

5,220 

5,840 

6,160

6,280 

6,020 

5,970 

5,980 

5,900

5,940 

5,900 

5,970 

5,920 

5,980

5,920 

5,880 

5,980 

5,990 

5,990

5,920 

5,940 

5,920 

5,940 

5,940

6,000 

5,940 

6,200 

5,950 

6,030 

5,960

Nov.

6,270 

5,940 

6,000 

6,040 

6,070

6,090 

6,040 

6,100 

6,040 

6,020

6,080 

6,070 

6,100 

6,020 

6,200

6,160 

6,140 

6,460 

6,120 

6,080

6,090 

6,060 

6,180 

6,150 

6,100

6,150 

6,100 

6,120 

6,140 

6,170

Dec.

6,160 

6,220 

6,060 

6,100 

6,290

6,040 

6,630 

6,290 

6,180 

6,120

6,080 

6,100 

6,180 

6,160 

6,060

6,040 

6,080 

6,030 

5,980 

6,080

6,060 

6,120 

6,080 

6,120 

6,060

6,060 

6,200 

6,100 

6,200 

6,150 

6,180

Jan.

6,120 

6,130 

6,170 

6,300 

6,220

6,170 

6,180 

5,300 

5,200 

5,530

5,340 

5,260 

4,740 

5,160 

4,460

4,330 

5,440 

5,450 

5,630 

5,440

5,450 

3,240 

2,980 

4,520 

4,740

4,700 

4,660 

4,610 

3,160 

2,850 

4,400

Feb.

5,340 

5,390 

4,370 

6,520 

3,200

3,060 

5,090 

5,190 

4,170 

5,040

3,750 

3,000 

2,830 

4,220 

4,490

3,240 

3,330 

3,130 

2,900 

2,860

3,520 

3,310 

4,970 

3,430 

2,960

2,970 

2,860 

3,200

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebn 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

wa

ber. ....................................

lendar year 1948 

&ry

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

ter year 1948-49 .......................

Mar.

4,810 

7,210 

5,890 

3,340 

3,060

2,990 

3,880 

3,260 

4,650 

4,510

4,350 

2,930 

2,540 

2,510 

2,850

3,320 

3,800 

4,590 

4,540 

3,490

3,260 

3,340 

3,320 

2,910 

2,740

2,650 

2,580 

2,550 

2,520 

2,480 

2,530

Apr.

2,880 

2,860 

2,850 

2,860 

2,850

2,820 

2,820 

2,810 

2,800 

2,790

2,900 

2,990 

3,030 

3,220 

2,600

2,400 

2,460 

2,980 

3,530 

3,510

3,670 

3,670 

4,070 

4,180 

4,220

4,220 

4,290 

5,030 

5,850 

5,870

Secondfoot -day 8

183,150 

183,300 

190,210

2,739,750

155,880 

108,340 

109,400 

103,030 

179,500 

233,260 

291,330 

285,570 

205,820

2,228,790

May

5,850 

5,820 

5,810 

5,820 

5,800

5,790 

5,800 

5,840 

5,840 

5,600

5,590 

5,600 

5,610 

5,620 

5,630

5,620 

5,610 

5,530 

5,520 

5,530

5,500 

5,540 

5,460 

5,500 

5,540

5,980 

6,020 

6,500 

6,560 

6,510 

6,560

Maximum

6,280 

6,460 

6,630

21,700

6,300 

6,520 

7,210 

5,870 

6,560 

8,780 

9,700 

9,780 

8,240

9,780

June

6,540 

6,520 

,500 

,540 

,560

,730 

,930 

,060 

,100 

,130

,570 

,750 

,880 

,680 

,710

7,920 

8,540 

8,100 

8,190 

8,230

8,310 

8,270 

8,440 

8,710 

8,680

8,730 

8,780 

8,710 

8,720 

8,730

Minimum

July

5,220 

5,940 

5,980

2,690

2,850 

2,830 

2,480 

2,400 

5,460 

6,500 

8,760 

8,370 

5,770

2,400

8,760 

9,100 

9,240 

9,280 

9,280

9,250 

9,250 

9,280 

9,280 

9,240

9,280 

9,310 

9,210 

9,250 

9,250

9,280 

9,280 

9,280 

9,530 

9,520

9,620 

9,600 

9,660 

9,630 

9,700

9,700 

9,700 

9,670 

9,640 

9,620 

9,640

Aug.

9,620 

9,690 

9,730 

9,760 

9,730

9,760 

9,730 

9,730 

9,780 

9,730

9,730 

9,780 

9,350 

9,320 

9,280

9,170 

9,140. 

9,210 

9,170 

8,620

8,590 

8,790 

8,720 

8,730 

8,690

8,680 

8,720 

8,720 

8,750 

8,780 

8,370

Mean

5,908 

6,110 

6,136

7,486

5,028 

3,869 

3,529 

3,434 

5,790 

7,775 

9,398 

9,212 

6,861

6,861

Sept.

3,190 

8,240 

,800 

,800 

,780

,800 

,700 

,540 

,540 

,320

,360 

,290 

,220 

,050 

,930

,840 

,710 

,560 

,460 

,260

6,260 

6,160 

5,980 

5,940 

5,840

5,830 

5,880 

5,890 

5,880 

5,770

Runoff In 

ae re-feet

363,300 

363,600 

377,300

5,434,000

309,200 

214,900 

217,000 

204,400 

356,000 

462,700 

577,800 

566,400 

408,200

4,421,000
312. SACRAMENTO RIVER MAIM STEM

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., K. 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 1949. April 1895 to June 1902 at site at 

jeilys Ferry, 12 miles upstream from Red Bluff.

Average discharge.- 54 years, 11,090 second-feet.

Extremes,- Maximum discharge during year, 58,600 second-feet Mar. 11 (gage height, 14.30 

reet); minimum, 3,530 second-feet Jan. 31 (gage height, 0.59 foot).

1895-1949: 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 Reservoir since Dec. 30, 1943 

(see p.310). Many diversions above station for irrigation.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.6 3,550 " g.5 7,780 7.0 22,400 

.8 3,900 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 10.5 38,300 

2.0 6,470 6.0 18,700 12. 5 48,500

Discharge, in second-feet, water year October 1948 to September 1949

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.

5,800 

5,530 

5,620 

5,880 

6,780

6,660 

6,560 

6,350 

6,340 

6,350

6,370 

6,370 

6,420 

6,500 

6,500

6,480 

6,420 

6,340 

6,320 

6,370

6,300 

6,340 

6,410 

6,380 

6,320

6,240 

6,220 

6,360 

6,390 

6,480 

6,460

Nov.

6,860 

7,590 

7,020 

6,940 

6,810

6,800 

6,750 

6,680 

6,720 

6,740

6,540 

6,930 

6,490 

6,700 

6,820

7,060 

6,960 

7,030 

7,100 

6,820

6,840 

6,750 

6,740 

6,860 

6,750

6,750 

6,740 

6,720 

6,850 

6,800

Dec.

6,560 

6,820 

6,960 

6,860 

7,160

7,430 

7,620 

8,870 

7,340 

7,040

7,020 

7,640 

9,060 

8,570 

7,800

7,300 

7,040 

6,860 

6,880 

7,060

6,900 

5,780 

6,780 

6,720 

6,880

7,280 

8,120 

7,570 

7,380 

7,840 

7,460

Jan.

7,540 

8,060 

7,360 

7,200 

7,100

7,050 

7,020 

6,910 

5,920 

5,830

6,100 

6,030 

5,790 

5,560 

5,680

5,130 

5,080 

6,060 

6,100 

6,220

6,180 

5,930 

3,890 

3,780 

5,160

5,320 

5,320 

5,320 

5,160 

3,680 

3,640

Feb.

5,340 

5,930 

6,040 

6,100 

7,150

4,030 

4,640 

6,340 

6,220 

5,320

10,300 

6,320 

4,700 

4,380 

5,660

5,390 

4,380 

4,480 

4,380 

4,270

5,980 

6,640 

11,600 

8,930 

6,370

5,960 

6,080 

5,610

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ftry .

ter year 1948-49 .......................

«ar.

5,750 

16,300 

25,000 

19,400 

11,100

10,300 

8,320 

8,080 

8,120 

32,000

48,000 

31,500 

14,800 

10,700 

12,600

14,900 

15,200 

22,300 

E7,300 

25,800

15,500 

15,500 

18,200 

13,200 

10,300

8,730 

7,940 

7,460 

6,950 

6,500 

6,100

Apr.

6,050 

6,120 

5,980 

5,890 

5,800

5,820 

5,860 

5,930 

5,840 

5,890

6,080 

6,400 

6,300 

6,080 

6,000

5,590 

5,450 

5,570 

5,820 

6,080

5,750 

5,960 

5,890 

6,320 

6,200

6,050 

5,770 

6,240 

7,350 

7,540

Seeondfoot-days

195,860 

205,080 

227,600

3,627,890

181,120 

168,540 

483,850 

181,620 

218,480 

238,720 

284,240 

280,670 

202,660

2,868,440

May

7,400 

7,460 

7,810 

7,480 

7,270

7,140 

7,110 

7,060 

7,190 

7,190

7,140 

7,140 

7,140 

7,270 

7,380

7,190 

6,950 

6,900 

6,750 

6,600

6,670 

6,540 

6,440 

6,340 

6,300

5,320 

6,750 

6,670 

7,270 

7,830 

7,780

Maximum

8,780 

7,590 

9,060

38,100

8,060 

11,600 

48,000 

7,540 

7,830 

8,670 

9,520 

9,690 

8,130

48,000 

June

,640 

,430 

,290 

,240 

,190

,190 

,270 

,480 

,510 

,320

,780 

,890 

,430 

,860 

,830

8,270 

8,210 

8,650 

8,240 

8,100

8,320 

8,210 

8,270 

8,560 

8,540

8,590 

8,670 

8,670 

8,590 

8,480

July

8,620 

8,560 

8,930 

9,120 

9,090

9,150 

9,180 

9,150 

9,090 

9,010

9,010 

9,010 

8,900 

8,870 

9,010

9,010 

9,010 

9,040 

9,090 

9,370

9,260 

9,320 

9,400 

9,460 

9,520

9,490 

9,520 

9,490 

9,520 

9,520 

9,520

Aug.

 9,600 

9,580 

9,690 

9,660 

9,550

9,490 

9,520 

9,520 

9,550 

9,580

9,550 

9,550 

9,350 

8,980 

9,210

8,950 

9,010 

8,980 

9,010 

8,840

8,430 

8,480 

8,590 

8,540 

8,590

8,560 

8,620 

8,590 

8,590 

8,540 

7,970

Minimum Mean

5,530 6,318 

6,490 6,836 

6,560 7,342

3,740 9,912

3,640 5,843 

4,030 6,019 

5,750 15,610 

5,450 6,054 

6,300 7,048 

7,190 7,957 

8,560 9,169 

7,970 9,054 

5,640 6,755

3,640 7,859

Sept.

8,130 

7,920 

,780 

,510 

,560

,620 

,560 

,560 

,400 

,320

,240 

,190 

,140 

,080 

,900

6,720 

6,600 

6,470 

6,340 

6,270

6,080 

6,120 

5,960 

5,750 

5,770

5,680 

5,640 

5,750 

5,800 

5,800

Runoff in 

acre-feet

388,500 

406,800 

451,400

7,196,000

359,200 

334,300 

959,700 

360,200 

433,300 

473,500 

563,800 

556,700 

402,000

5,689,000
SACRAMENTO RIVER MAIN STEM 313

Sacramento River at Butte City, Calif.

Location..- Water-stage recorder, lat. 39°27'35", long. 121°59'3S", in NE$ sec. 32, T. 19

 T., 'H. 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 1949 in reports of Geological Survey. 1939-49- in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 82,200 second-feet Mar. 12 (gage height, 90.53

 feet); minimum, 4,460 second-feet Feb. 1 (gage height, 69.77 feet).

1940-49: Maximum discharge, 170,000 second-feet Feb. 7, 1942 (gage height, 96.87 

feet), from rating curve extended above 100,000 second-feet.

1921-49: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, 1931 (gage 

height, 67.49 feet).

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

 good. Plow regulated by reservoirs, many diversions for Irrigation, and bypassing 

for flood control. See "Remarks 11 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 1948 to September

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,590 

5,690 

5,500 

5,570 

5,650

6,300 

6,410 

6,370 

6,840 

6,260

6,370 

6,790 

6,300 

6,520 

6,410

6,460 

6,430 

6,350 

6,320 

6,320

6,350 

6,240 

6,240 

6,280 

6,240

6,280 

6,130 

6,080 

6,150 

6,260 

6,300

Nov.

6,410 

6,970 

7,550 

7,110 

7,040

6,900 

6,790 

6,650 

6,540 

6,540

6,570 

6,410 

6,500 

6,320 

6,460

6,720 

7,000 

6,930 

7,060 

6,950

6,770 

6,770 

6,720 

6,720 

6,770

6,680 

6,680 

6,680 

6,630 

6,770

Dec.

7,160 

7,040 

7,360 

7,390 

7,320

7,640 

7,880 

8,260 

8,910 

7,930

7,640 

7,570 

8,310 

9,370 

8,980

8,430 

8,020 

7,760 

7,500 

7,460

7,480 

7,410 

7,360 

7,320 

7,340

7,590 

8,600 

9,630 

8,460 

8,19O 

8,410

Jan.

8,220 

8,340 

8,530 

7,960 

7,710

7,660 

7,690 

7,620 

7,360 

6,720

6,540 

6,650 

6,650 

6,520 

6,300

6,280 

5,830 

5,910 

6,520 

6,610

6,650 

6,700 

6,430 

4,980 

4,730

5,580 

5,830 

5,830 

5,810 

5,700 

4,640

Feb.

4,580 

5,660 

6/190 

6,410 

6,810

7,160 

5,260 

5,460 

6,670 

6,670

6,560 

10,300 

7,300 

5,810 

5,520

6,300 

6,000 

5,260 

5,300 

5,300

5,320 

6,700 

8,750 

11,800 

9,730

. 7,820 

7,520 

7,590

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary t , . t .....,, .... ...... ....

ter year 1948-49 .......................

Mar.

7,140 

8,390 

26,100 

34,500 

26,400

19*300 

16,100 

13,000 

11,700 

21,800

61,400 

80,100 

55,600 

26,600 

20,500

a23,000 

25,000 

24,800 

430,000 

a37,000

a32,000 

324,000 

a27,000 

25,700 

20,900

17,000 

14,900 

13,700 

12,900 

11,900 

11,000

Apr.

10,300 

9,980 

9,800 

9,640 

9,400

9,250 

8,920 

8,940 

8,840 

8,800

8,010 

9,320 

9,440 

8,700 

8,220

7,920 

7,780 

7,850 

7,960 

8,050

7,780 

7,430 

7,270 

7,000 

7,000

6,780 

6,430 

6,100 

6,280 

7,050

Secondfoot -days

192,200 

202,610 

245,720

3,992,030

204,500 

189,550 

779,430 

247,240 

197,180 

186,500 

215,080 

216,790 

174,740

3,051,540

May

6,960 

7,000 

7,160 

7,390 

6,960

6,780 

6,560 

6,480 

6,480 

6,500

6,540 

6,720 

6,650 

6,850 

6,850

6,870 

6,630 

6,410 

6,280 

6,060

5,950 

5,890 

5,760 

5,600 

5,380

5,320 

5,280 

5,460 

5,620 

6,120 

6,670

Maximum

6,790 

7,550 

9,630

57,500

8,530 

11,800 

80,100 

10,300 

7,390 

6,700 

7,250 

7,360 

6,410

80,100

June

6,700 

6,590 

6,320 

6,080 

5,870

5,790 

5,740 

5,870 

5,910 

5,890

5,720 

5,980 

6,120 

5,890 

6,040

6,020 

6,150 

6,150 

, 6,520 

6,280

6,150 

6,370 

. 6,480 

6,320 

6,560

6,590 

6,560 

6,560 

6,670 

6,610

July

6,520 

6,590 

6,560 

6,350 

6,920

6,920 

6,940 

6,850 

6,920 

6,960

6,980 

6,870 

6,780 

6,720 

6,740

6,780 

6,830 

6,780 

6,780 

6,870

7,050 

7,070 

7,110 

7,110 

7,180

7,250 

7,250 

7,200 

7,200 

7,250 

7,250

Minimum

5,500 

6,320 

7,040

3,820

4,640 

4,580 

7,140 

6,100 

5,280 

5,720 

6,520 

6,430 

5,090

4,580

Aug.

7,360 

7,300 

7,300 

7,300 

7,300

7,320 

7,300 

'7,360 

7,340 

7,340

7,360 

7,360 

7,360 

7,180 

7,000

7,000 

7,000 

6,890 

6,830 

6,850

6,780 

6,430 

6.50O 

6,560 

6,830

6,670 

6,630 

6,630 

6,630 

6,630 

6,650

Mean

6,200 

6,754 

7,926

10,910

6,597 

6,770 

25,140 

8,241 

6,361 

6,217 

6,938 

6,993 

5,825

8,360

Sept.

6,410 

6,410 

6,370 

6,340 

6,150

6,190 

6,260 

6,210 

6,210 

6,280

6,280 

6,230 

6,190 

6,100 

6,020

5^980 

5,850 

5,760 

5,660 

5,600

5,500 

57550 

5,300 

5,200 

5,090

5,130 

5,110 

5,130 

5,160 

5,240

Runoff In 

acre-feet

381,200 

401,900 

487,400

7,918,000

405,600 

376,000 

1,546,000 

490,400 

391,100 

389,900 

426:, 600 

430,000 

346,600

6,053,000

a Ho gage-height record} discharge computed on basis of records at Orel Perry (State of California 

station) and at Oolusa.
314 SACRAMENTO RIVER MAIN STEM

Sacramento River at Colusa, Calif.

Location.- Water-stage recorder, lat. 39°12'50", long. 121°59'55", at north end of Jimeno 

Grant, just downstream from highway bridge at Colusa, Colusa County. Zero of gage is 

sat to datum of Corps of Engineers.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1949 in reports of Seological Survey. 1939-49 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 35,300 second-feet Mar. 13 (gage height, 64.67 

reet); minimum, 4,760 second-feet Feb. 1 (gage height, 39.50 feet)

1940-49: Maximum discharge, 49,000 second-feet Feb. 8, 1942 (gage height, 69.20 

feet).

1921-49: Maximum discharge recorded, 820 second-feet July 25, 26, 1931 (gage height, 

34.79 feet).

Remarks.- Records excellent except those above 10,000 seoond-feet, which are good. Plow 

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 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

5,730 

5,820 

5,730 

5,720 

5,800

6,240 

6,500 

6,580 

6,430 

6,360

6,410 

6,690 

6,610 

6,420 

6,470

6,570 

6,590 

6,530 

6,490 

6,440

6,470 

6,430 

6,390 

6,460 

6,460

6,460 

6,430 

6,340 

6,330 

6,420 

6,470

Nov.

6,520 

6,680 

7,470 

7,270 

7,120

6,980 

6,930 

6,800 

6,680 

6,640

6,630 

6,590 

6,520 

6,490 

6,500

6,620 

6,860 

6,950 

6,950 

7,040

6,810 

6,790 

6,750 

6,750 

6,770

6,750 

6,670 

6,680 

6,690 

6,680

Dec.

6,770 

6,930 

7,060 

7,150 

7,130

7,160 

7,570 

7,540 

8,480 

7,980

7,550 

7,380 

7,430 

8,840 

8,640

8,430 

7,900 

7,590 

7,450 

7,300

7,240 

7,210 

7,180 

7,140 

7,150

7,330 

7,660 

8,980 

8,570 

8,080 

8,150

Jan.

8,070 

7,970 

8,420 

8,020 

7,650

7,570 

7,540 

7,520 

7,480 

6,890

6,590 

6,650 

6,680 

6,650 

6,400

6,500 

6,060 

5,940 

6,620 

6,700

6,770 

6,760 

6,770 

5,530 

5,080

5,630 

5,950 

6,090 

6,030 

5,980 

5,190

Feb.

4,810 

5,490 

6,240 

6,400 

6,490

7,360 

5,920 

5,490 

6,590 

6,840

6,380 

8,800 

8,610 

6,620 

5,850

6,260 

6,450 

5,760 

5,680 

5,550

5,480 

6,410 

7,110 

10,700 

10,600

8,760 

7,800 

7,870

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948 

apy

ter year 1948-49 .......................

Mar.

 7,570 

7,440 

13,800 

26,200 

27,900

22,200 

18,400 

14,500 

12,400 

12,700

27,800 

34,200 

34,200 

28,400 

22,200

 20,700 

22,700 

22,700 

25,000 

29,600

30,100 

26,400 

23,200 

25,400 

22,200

18,300 

15,200 

13,500 

12,500 

' 11,600 

10,800

Apr.

10,200 

9,750 

9,580 

9,380 

9,190

9,050 

8,840 

8,770 

8,750 

8,660

8,730 

8,950 

9,250 

8,930 

8,350

8,020 

,730 

,600 

,550 

,530

,470 

,150 

,890 

,660 

,630

,480 

,250 

,970 

5,820 

6,310

Secondfoot-days

196,790 

203,580 

236,970

3,792,500

207,700 

192,320 

639,810 

240,440 

195,130 

180,420 

203,630 

216,500 

183,350

2,896,640

May

6,620 

6,520 

6,560 

6,850 

6,700

6,510 

6,360 

6,270 

6,260 

6,270

6,360 

6,540 

6,550 

6,720 

6,730

6,760 

6,720 

6,530 

6,430 

6,240

6,160 

6,110 

6,010 

5,880 

5,720

5,530 

5,480 

5,590 

5,690 

6,030 

6,430

Maximum

6,690 

7,470 

8,980

35,000

8,420 

10,700 

34,200 

10,200 

6,850 

6,660 

6,990 

7,380 

6,660

34, -200

June

6,650 

6,660 

6,520 

6,270 

6,020

5,830 

5,780 

5,820 

5,890 

5,830

5,760 

5,800 

6,010 

6,840 

5,890

5,810 

' 5,800 

5,840 

6,060 

5,900

5,860 

5,830 

6,060 

5,890 

6,010

6,160 

6,170 

6,140 

6,160 

6,160

Minimum

July

5,720 

6,490 

6,770

4,220

5,080 

4,810 

7,440 

5,820 

5,480 

5,760 

6,180 

6,550 

5,430

4,810

6,180 

6,180 

6,250 

6,380 

6,530

6,570 

6,610 

6,570 

6,620 

6,710

6,690 

6,620 

6,560 

6,510

6,470

6,460 

6,510 

6,480 

6,450 

6,460

6,560 

6,620 

6,630 

6,660 

6,690

6,670 

6,720 

6,740 

6,720 

6,820 

6,990

Aug.

6,990 

7,030 

7,060 

7,090 

7,140

7,170 

7,200 

7,240 

7,280 

7,310

7,380 

7,380 

7,380 

7,370 

7,120

7,020 

7,000 

6,930 

6,910 

6,910

6,920 

6,640 

6,550 

6,620 

8,650

6,720 

6,750 

6,700 

6,670 

6,690 

6,680

Mean

6,348 

6,786 

7,644

10,360

6,700 

5,869 

20,640 

8,015 

6,295 

6,014 

6,569 

6,984 

6,112

7,936

Sept.

6,660 

6,520 

6,500 

6,530 

6,370

6,350 

6,400 

6,410 

6,410 

6,470

6,540 

6,450 

6,450 

6,420 

6,380

6,330 

6,270 

6,190 

6,040 

5,970

5,890 

5,740 

5,690 

5,600 

5,490

5,430 

5,460 

5,440 

5,460 

5,490

Runoff in 

acre-feet

390,300 

403,800 

470,000

7,522,000

412,000 

381,500 

1,269,000 

476,900 

387,000 

357,900 

403,900 

429,400 

363,700

5,745,000
SACRAMENTO RIVER MAIN STEM 315

Sacramento River below Wilklns Slough, Calif.

Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'2S", in Jimeno Grant, 1,500 

feet 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 1949 in reports of Geological Survey. 1939-49 in reports of Division of 

Water Resources,_Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 23,200 second-feet Mar. 5; maximum gage height, 

47,S3 feet Mar. 13; minimum discharge, 4,500 second-feet June 12 {gage height, 26.73 

feet).

1940-49: Maximum discharge, 26,600 second-feet Feb. 8, 1942 (gage height, 52.29 

feet).

1931-49: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height, 

14.20 feet).

Remarks.- Records excellent except those for March, which are good. Flow regulated by 

reservoirs, many diversions for irrigation, 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 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

ZZ 

23 

34 

35

26 

27 

28 

29 

30 

31

Oct.

6,520 

6,430 

6,480 

6,420 

6,490

6,680 

7,130 

7,230 

7,100 

6,920

6,910 

7,030 

7,320 

6,840 

6,780

6,970 

7,030 

6,980 

6,880 

6,760

6,730 

6,680 

6,620 

6,690 

6,750

6,640 

6,670 

&,590 

6,520 

6,570 

6,630

Nov.

6,700 

6,820 

7,400 

7,780 

7,610

7,450 

7,320 

7,210 

7,060 

6,950

6,870 

6,850 

6,740 

6,730 

6,670

6,730 

6,950 

7,130 

7,130 

7,180

7,100 

6,970 

6,900 

6,870 

6,860

6,900 

6,880 

6,840 

6,830 

6,760

Dec.

6,770 

7,000 

7,120 

7,270 

7,300

7,340 

7,630 

7,820 

8,290 

8,500

7,980 

7,700 

7,600 

8,300 

8,920

8,770 

8,440 

8,070 

7,840 

7,680

7,610 

7,600 

7,550 

7,490 

7,500

7,630 

7,880 

8,620 

9,300 

8,850 

8,64O

Jan.

8,720 

8,560 

8,650 

8,670 

8,310

8,080 

8,040 

8,030 

8,010 

7,770

7,360 

7,240 

7,280 

7,310 

7,120

7,000 

6,790 

6,460 

6,700 

7,090

7,180 

7,220 

,- , 200 

6,710 

5,760

5,680 

6,250 

6,460 

6,420 

6,340 

6,030

Feb.

5,320 

5,320 

6,200 

6,600 

6,790

7,150 

6,980 

5,980 

6,340 

6,980

6,940 

7,640 

9,240 

7,720 

6,550

6,370 

6,690 

6,360 

6,040 

5,900

5,810 

6,190 

7,030 

9,120 

10,700

9,710 

8,550 

8,280

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mfltr

June 

July 

Augu 

Sept

Wa

lendar year 1948 

sry

h. ......................................

ter year 1948-49 .......................

Mar.

8,190 

7,960 

10,300 

20,800 

23,100

21,800 

19,800 

16,700 

14,000 

12,800

19,300 

22,100 

22,100 

21,600 

20,500

30,000 

20,300 

20,400 

20,600 

21,400

21,600 

21,200 

20,600 

20,900 

20,400

19,100 

16,800 

14,900 

13,600 

12,800 

12,000

Apr.

11,100 

10,500 

10,200 

9,910 

9,680

9,530 

9,380 

9,230 

9,200 

9,170

9,050 

9,110 

9,310 

9,240 

8,790

8,310 

7,920 

7,710 

7,500 

7,280

7,030 

6,740 

6,250 

6,090 

5,850

5,660 

5,320 

4,890 

4,610 

4,800

Secondfoot-days

209,890 

210,170 

245,010

3,510,680

224,440 

198,500 

557,650 

239,360 

173,580 

155,370 

172,780 

183,770 

176,910

2,745,430

May

5,300 

5,340 

5,340 

5,630 

5,810

5,670 

5,420 

5,250 

5,350 

5,250

5,270 

5,440 

5,830 

6,210 

6,320

6,480 

6,500 

6,360 

6,340 

6,140

6,010 

5,920 

5,770 

5,500 

5,260

4,970 

4,760 

4,690 

4,890 

5,080 

5,480

Maximum

7,230 

7,780 

9,300

23,600

8,720 

10,700 

23,100 

11,100 

6,500 

6,100 

6,020 

6,220 

6,530

23,100

June

5,900 

6,100 

6,100 

5,810 

5,450

5,140 

4,830 

4,750 

4,790 

4,750

4,700 

4,600 

4,850 

4,880 

4,730

4,790 

4,770 

4,880 

4,990 

5,190

5,080 

4,980 

5,120 

5,140 

5,010

5,170 

5,230 

5,220 

5,210 

5,210

Minimum

July

5,140 

5,140 

5,220 

5,260 

5,500

5,550 

5,560 

5,530 

5,550 

5,720

5,710 

5,570 

5,500 

5,440 

5,440

5,440 

5,480 

5,530 

5,460 

5,450

5,510 

5,640 

5,630 

5,680 

5,820

5,860 

5,870 

5,860 

5,830 

5,870 

6,020

6,420 

6,670 

6,770

3,890

5,680 

5,320 

7,960 

4,610 

4,690 

4,600 

5,140 

5,450 

5,250

4,600

Aug.

6,180 

6,160 

6,140 

6,130 

6,140

6,130 

6,130 

6,080 

6,100 

6,160

6,100 

6,160 

6,170 

6,220 

6,070

5,880 

5,850 

5,770 

5,770 

5,800

5,840 

5,740 

5,480 

5,450 

5,530

5,660 

5,800 

5,800 

5,710 

5,780 

5,840

Mean

6,771 

7,006 

7,904

9,592

7,240 

7,089 

17,990 

7,979 

5,599 

5,112 

5,574

5^897

7,522

Sept.

5,840 

5,730 

5,730 

5,750 

5,760

5,700 

5,870 

5,980 

6,110 

6,230

6,370 

6,380 

6,420 

6,530 

6,460

6,420 

6,380 

6,320 

6,190 

6,050

5,920 

5,770 

5,580 5,490' 

5,380

a5,350 

a5,350 

a5,300 

a5,300 

5,250

Runoff in 

acre-feet

416,300 

416,900

486 ; 000

6,964,000

445,200 

393,700 

1,106,000 

474,800 

344,300 

304,200 

343,700 

364,500 

350,900

5,446,000

a No gage-height record; discharge computed on basis of records for stations at Butte City and at 

Colusa.
316 SACRAMENTO RIVER MAIN STEM

Sacramento River at Knights Landing, Calif.

location.- Water-stage recorder, lat. 3a°48 | 10", long. 121°43 l S51t , 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 Uorps 6T Engineers. Auxiliary gage is water-stage recorder at upstream end of Premont weir, 6.0 miles downstream.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1949 in reports of Geological Survey. 1939-49 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum, discharge during year, 24,100 second-feet Mar. 12; maximum gage height, 

36.Y9 feet Mar. 14; minimum discharge, 4,560 second-feet Apr. 29; minimum gage height, 

15.46 feet June 17.

1940-49': Maximum discharge, 27,900 second-feet Feb. 9, 1942; maximum gage height, 

41.83 feet Feb. 8, 19.42.

1921-49': Minimum discharge recorded, 250 second-feet July 23, 1931. (gage height, 

7.80 feet). '

Remarks.- Records excellent. Flow regulated by reservoirs, many diversions for irrigation, 

ana 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'1948 to September 1949

Day

1 

2

3 

4 

5

tf

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

6,920 

6,770 

6,760 

6,700 

6,790

6,880 

7,320 

7,390 

7,220 

6,920

6,990

7,100 

7,480 

7,070 

6,780

7,050 

7,160 

7,300 

7,130 

6,920

6,930 

6,900 

6,900 

6,980 

7,080

7,100 

7,080 

6,940 

6,850 

6,820 

6,940

Nov.

7,130 

7,330 

7,740 

B;340 

8,140

7,870 

7,880 

7,710 

7,600 

7,390

7,400 

7,370 

7,210 

7,210 

7,200

7,310 

7,590 

7,830 

7,810 

7,830

7,860 

7,650 

7,820 

7,460 

7,380

7,440 

7,480 

7,290 

7,320 

7,260

Dec.

7,270 

7,310 

7,540 

7,710 

7,660

7,670 

7,800 

8,090 

8,340 

8,870

8,350 

7,960 

7,790 

8,170 

9,020

9,140 

8,960 

8,410 

8,020 

7,910

7,830 

7,800 

7,690 

7,650 

7,650

7,930 

8,290 

9,370 

10,200 

|9,660 

,9,260

Jan.

9,470 

9,130 

9,150 

9,170 

9,000

8,470 

8,390 

8', 400 

8,440 

8,150

,620 

,520 

,630 

,590 

,460

7,320 

7,050 

6,670 

6,940 

7,390

7,530 

7,540 

7,630 

7,120 

6,010

5,740 

6,480 

6,830 

6,630 

6,700 

6,240

Feb.

5,550 

5,490 

6,270 

6,850 

7,150

7,490 

7,470 

6,270 

6,430 

7,320

7,500 

7,760 

9,710 

8,250 

6,990

6,510 

6,980 

6,660 

6,210 

6,020

5,950 

6,210 

7,110 

8,610 

10,800

10,100 

8,940 

8,460

Month

Octo 

Nove 

Dece

ca

Janu 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

8,430 

8,190 

8,830 

18,700 

23,300

22,600 

21,100 

17,900 

14,600 

13,700

19,600 

23,800 

23,600 

22,700 

21,900

21,100 

21,500 

21,900 

22,300 

23,200

23,400 

22,900 

22,100 

22,500 

22,400

21,000 

18,300 

16,000 

14,700 

13,700 

12,800

Apr.

12,600 

11,990 

11,300 

10,900 

10,600

10,300 

10,000 

9,790 

9,880 

9,780

9,670 

9,550 

9,640 

9,700 

9,320

8,850 

8,420 

8,120 

8,000 

7,640

7,260 

6,860 

6,160 

5,970 

5,690

5,540 

5,270 

4,920 

4,760 

4,940

Secondfoot-days

217,170 

226,850 

255,320

3,617,880

235,410 

204,970 

588,750 

253,420 

194,800 

163,650 

174,360 

3.99,490 

215,840

2,930,030

May

5,420 

5,370 

5,420 

5,660

6,140

6,260 

6,050 

5,863 

5,680 

5,700

5,620 

5,840 

6,290 

6,670 

6,840

7,300 

7,360 

7,310 

7,570 

7,630

7,390 

7,500 

7,150 

6,650 

6,070

5,680 

5,470 

5,260 

5,500 

5,980 

6,160

Maximum

7,480 

8,340 

10,200

22,800

9,470 

10,800 

23,800 

12,600 

7,630 

7,220 

6,220 

6,860 

8,260

23,800

June

6,800 

7,100 

7,220 

6,890 

6,330

5,800 

5,400 

5,200 

5,140 

5,070

5,020 

4,930 

5,080 

5,110 

4,920

4,840 

4,860 

4,940 

4,950 

5,180

5,150 

5,190 

5,300 

5,360 

5,220

5,270 

5,390 

5,390 

5,360 

5,240

July

5,180 

5,200 

5,250 

5,310 

5,580

5,660 

5,720 

5,630 

5,600

5,710

5,760 

5,620 

5,550 

5,460 

5,360

5,380 

5,490 

5,590 

5,500 

5,430

5,430 

5,550 

5,720 

5,740 

5,930

5,940 

6,000 

5,960 

5,910 

5,980 

6,220

Minimum

6,700 

7,130 

7,270

3,780

5,740 

5,490 

8,190 

4,760 

5,260 

4,840 

5,180 

6,090 

6,000

4,760

Aug.

6,390 

6,460 

6,360 

6,310 

6,230

6,190 

6,180 

6,200 

6,240 

6,360

6,390 

6,500 

6,580 

6,620 

6,590

6,480 

6,470 

6,490 

6,390 

6,380

6,430 

6,410 

6,090 

6,120 

6,310

6,380 

6,770 

6,810 

6,690 

6,810 

6,860

Mean

7,005 

7,562 

8,236

9,885

7,594 

7,320 

18,990 

8,447 

6,284 

5,455 

5,625 

6,435 

7,195

8,027

Sept.

6,960 

6,920 

6,910 

6,930 

7,130

7,120 

7,600 

7,750 

8,020 

7,920

8,260 

8,080 

8,120 

8,230 

8,100

8,070 

7,940 

7,630 

7,350 

7,220

7,010 

6,760 

6,500 

6,390 

6,220

6,120 

6,190 

6,230 

6,160 

6,000

Runoff in 

acre-feet

430,800 

450,000 

506,400

7,176,000

466,900 

406,600 

1,168,000 

502,700 

386,400 

324,600 

345,800 

395,700 

428,100

5,812,000
SACRAMENTO RIVER MAIN STEM 317

Sacramento River at Verona, Calif.

Location.- Water-stage recorder, lat. 38°46'50", long. 121°36'15", in SE£ sec. 23, T. 11

 M. , R. 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 1949 (1926-29, low-water periods only) in

 reports of (leoJLoglcal Survey. 1926-49 (1926-29, gage heights only] ^reports of 

Division of Water Resources, Department of Public Works, State of California.

Average discharge.- 20 years (1929-49), 16,480 second-feet.

Extremes.- Maximum discharge during year, 56,200 second-fe.et Mar. 14 (gage height, 33.56 

feet); minimum discharge, 5,740 second-feet July 20; minimum gage height, 11.41 feet 

July 1.

1926-49: 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).

1934-49: Maximum combined discharge of Sacramento River at Verona and Fremont weir, 

about 315,000 second-feet Mar. 1, 1940.

Remarks.- Records good. Reservoirs, many diversions, and considerable return water affect 

flow. When discharge is larger than about 55,000 second-feet, flow begins over Fremont 

weir (lust upstream) into Yolo bypass (see p. 399). Elevation of crest of Fremont weir 

is 33.5 feet (datum of Corps of Engineers).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7e

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

Oct.

10,200 

10,000 

9,910 

9,820 

9,640

9,820 

10,300 

10,500 

10,400 

10,000

9,880 

9,880 

10,200 

10,300 

9,980

9,980 

10,000 

10,100 

9,880 

9,540

9,330 

9,330 

9,320 

9,380 

9,520

9,350 

9,450 

9,350 

9,300 

9,330 

9,610

Nov.

9,640 

9,890 

11,700 

12,100 

11,900

11,200 

10,600 

10,000 

9,730 

9,790

9,680 

9,640 

9,320 

9,300 

9,010

9,060 

9,950 

10,500 

10,600 

10,400

10,100 

9,680 

9,380 

9,500 

9,480

9,470 

9,180 

9,180 

8,910 

8,620

Dec.

8,990 

9,330 

9,550 

10,000 

10,300

10,300 

10,700 

11,000 

11,400 

11,800

11,200 

10,500 

10,000 

12,100 

13,800

13,100 

12,700 

12,700 

12,000 

11,100

10,700 

10,700 

10,500 

10,300 

10,000

10,100 

10,800 

12,900 

14,100 

13,300 

12,500

Jan.

12,500 

12,600 

12,600 

12,400 

12,000

11,600 

11,500 

11,600 

11,500 

11,200

10,500 

10,500 

11,000 

11,300 

11,200

1^,700 

10,200 

9,590 

9,770 

10,200

10,800 

11,100 

11,200 

10,500 

9,130

8,670 

9,010 

9,450 

9,400 

9,610 

9,130

Feb.

8,480 

8,620 

9,400 

10,200 

10,600

11,200 

11,600 

11,400 

11,200 

11,400

12,000 

14,200 

14,900 

13,300 

11,300

10,600 

10,600 

10,500 

9,980 

9,800

9,840 

10,500 

11,900 

14,300 

17,100

17,200 

16,000 

15,200

Month.

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 ........................

Mar.

14,700 

14,400 

20,100 

37,600 

41 , 200

41,400 

38 , 300 

33,800 

29,200 

26,200

33,400 

45,000 

52,700 

56,100 

55,000

52,700 

51,000 

49 , 800 

48,400 

49,200

SO, 800 

50,800 

50,500 

49,400 

47,800

44,100 

39,200 

34,200 

30,800 

28,200 

25,500

Apr.

23,400 

21,600 

20,700 

20,100 

19,800

20,200 

20,200 

2O,500 

21,200 

21,900

22,700 

24,000 

25,100 

25,800 

26,000

26,000 

25,900 

26,200 

26,000 

25,700

25 , 200 

24,400 

23,800 

23,800 

23,100

21,700 

19,800 

18,500 

17,200 

16,400

Secondfoot-days

303,600 

297,510 

348;470

6,400,410

332,460 

333,320 

1,241,500 

676,900 

484,700 

222,310 

189,240 

215, 3KO 

253,710

4,899,240

May

16,000 

15,700 

15,700 

16,300 

16,300

16,200 

15,700 

15,400 

15,200 

14,400

14,100 

15,800 

17,300 

18,300 

19,300

20,600 

19,600 

19,900 

18,400 

17,200

16,400 

15,500 

14,600 

14,000 

13,400

13,300 

13,100 

12,500 

11,800 

11,300 

11,400

Maximum

10,500 

12,100 

14,100

56,500

12,600 

17,200 

56,100 

26,200 

20,600 11,400" 

6,440 

7,720 

9,840

56,100

June

11,400 

11,400 

11,100 

10,500 

9,400

8,650 

8,07'0 

7,750 

7,540 

7,300

7,210 

7,080 

6,940 

6,890 

6,550

6,400 

6,280 

6,160 

6", 130 

6,360

6,300 

6,250 

6,310 

6,520 

6,480

6,440 

6,440 

6,320 

6,160 

5,980

July

5,800 

5,880 

5,880 

5,890 

6,040.

6,120 

6,160 

6,130 

6,220 

6,360

6,440 

6,360 

6,220 

6,120 

5,920

5,880 

5,980 

6,120 

5,980 

5,840

5,820 

5,950 

6,000 

6,130 

6,200

6,300 

6,300 

6,250 

6,250 

6,260 

6,440

Minimum

9,300 

8,620 

8,990

6,500

8,670 

8,480 

14,400 

16,400 

11,300 

5,980 

5,800 

6,600 

7,080

5,800

Aug.

6,670 

6,900 

6,950 

6,890 

6,810

6,680 

6,610 

6,600 

6,640 

6,670

6,680 

6,810 

6,900 

7,020 

7,080

6,970 

6,900 

7,000 

7,000 

7,020

7,060 

7,110 

6,860 

6,720 

6,810

6,950 

7,210 

7,370 

7,400 

7,510 

7,720

Mean

9,794 

9,917 

11,240

17,490

10,720 

11,900 

40,050 

22,560 

15,640 

7,410 

6,105 

6,952 

8,457

13,420

Sept.

7,880 

7,830 

7,820 

7,900 

8,010

7,980 

8,230 

8,650 

8,870 

9,040

9,280 

9,480 

9,550 

9,750 

9,840

9,840 

9,710 

9,770 

9,050 

8,800

8,650 

8,500 

8,040 

7,690 

7,610

7,340 

7,140 

7,130 

7,220 

7,080

Runoff in 

acre-feet

602,200 

590,100 

691,200

12,690,000

659,400 

661,100 

2,462,000 

1,343,000 

961,400 

440,900 

375,400 

427,500 

503,200

9,717,000
318 PIT RIVER BASIN

Pit River near Canby, Calif.

Location.- Water-stage recorder, lat. 41°24', long. 120°55', in SWi sec. 10, T. 41 N., R.

9 E., 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 1949 (1929-31

incomplete).

Average discharge.- 18 years (1931-49), 201 second-feet. 

Kxtremes.- Maximum discharge during year, 1,890 second-feet. May 19 (gage height, 5.76

reetj; minimum, 4.0 second-feet July 31.

1904-5, 1929-49: Maximum discharge recorded, 17,000 second-feet Mar. 8, 1904 (gage

height, 14.0 feet, datum then in use); minimum, 0.1 second-foot Apr. 29, Aug. 5,

Sept. 18, 1934, Aug. 18-21, 1935. 

Remarks.- Records fair except those-for periods of ice effect, which are poor. Plow regulatea by many small reservoirs since beginning of record (total .usable capacity now

about 100,000 acre-feet). Maay diversions above station for irr'igati-on. 

Revisions.- W 861: Drainage area.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge, In second-feet)

2.0 2.0 2.6 69 3.8 620 

2.1 4.6 2.7 95 4.2 860 

2.2 9.5 2.8 125 4.6 1,110 

2.3 17 3.0 205 4.9 1,300 

2.4 30 3.2 300 5.3 1,570 

2.5 47 3.4 400 5.8 1,920

Discharge, in second- feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

79 

72 

79 

67 

47

85 

85 

74 

69 

62

58 

58 

47 

54 

45

56 

62 

65 

65 

65

62 

69 

62 

62 

62

69 

60 

60 

69 

74 

79

Nov.

79 

82 

90 

101 

98

101 

92 

85 

82 

72

67 

67 

65 

65 

67

72 

74 

104 

101 

85

82

95 

79 

77 

79

79 

74 

67 

b60 

b60

Dec.

b60

(«) 

b70

Jen.

b60

Feb.

b70

65 

69 

79 

87 

95

98 

158 

b250 

b.350 

*b500

b600 

b700 

b850

Month

Octo 

Nove 

Dece

Ca

Janu. 

Pebr 

Marc 

Aprl

Mnv

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter yeer 1948-49 .......................

Mar.

968 

920 

836 

863 

848

710 

570 

526 

516 

*466

450 

538 

674 

722 

824

1,050 

1,170 

1,160 

1,160 

1,180

1,080 

956 

518 

620 

494

477 

460 

472 

504 

477 

400

AP».

Secondfoot -days

2,022 

2,401 

1,970

73,560.9

1,860 

4,951 

22,912 

16,328 

25,976 

« 6,249.5 

1,039 

1,124 

1,452.9

88,285.4

411 

390 

370 

365 

365

375 

416 

472 

543 

662

746 

764 

740 

644 

656

598 

592 

592 

592 

592

592 

592 

565 

548 

548

548 

548 

543 

499 

460

May

416 

390 

422 

438 

438

375 

305 

184 

305 

395

526 

656 

710 

770 

908

1,010 

1,360 

1,770 

1,860 

1,750

1,560 

1,440 

1,360 

1,270 

1,180

1,060 

938 

764 

560 

428 

428

Maximum

85 

104

1,290

850 

1,180 

764 

1,860 

662 

144 

129 

104

1,860

June

494

585 

620 

662 

638

521 

400 

325 

265 

205

155 

107 

87 

87 

101

69 

67 

40 

32 

35

11 

9.5

16 

27 

47

158 

175 

144 

125 

62

July

 51 

47 

47 

49 

45

26 

13 

6.7 

5.8 

27

122 

144 

82 

65 

47

22 

19 

18 

19 

16

14 

15 

12

14 

23

26 

22 

17 

11 

7.7 

5.8

Aug.

7.7 

6.7 

12 

28 

45

47 

69 

35 

32 

50

12 

5.4 

4.6

5.0 

4.6

4.3 

6.7 

19 

44 

129

92 

65 

60 

60 

56

49 

49 

45 

40 

33 

28

Minimum Mean

45 65.2 

60 80.0 

63.5

6.7 201

60 

177 

400 739 

365 544 

184 838 

9.5 206 

5.8 33.5 

4.3 36.3 

5.8 48.4

4.3 242

Sept.

23

22 

28 

40

17

9.S 

6.2 

6.2 

6.2 

5.8

26 

104 

74 

62 

60

67 

67 

65 

65 

62

62 

62 

72 

56 

58

58 

56 

74 

77 

62

Runoff In 

acre-feet

4,010 

4,760 

3,910

145,900

3,690 

9,820 

45,450 

32,390 

51,520 

12,400 

2,060 

2,250 

2,880

175,100

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
PIT RIVER BASIN 319

Pit River at Fall River Mills, Calif.

Location.- Water-stage recorder, lat. 41°00', long. 121 C 26', in NE-fr sec. 6, T. 36 N., R.

 b E., 0,8 mile downstream from Pall River and town of Fall River Mills. Altitude of 

gage, about 3,235 feet (from topographic map).

Drainage area.- 4,150 square miles, excluding Goose Lake Basin.

Kecoras available.- December 1922 to September 1949. .March 1921 to December 1922 at site 

U.Y mile upstream.

Average discharge.- 25 years (1923-48), 460 second-feet (excluding flow of Pall River).

Extremes.- Maximum discharge during year, 2,860 second-feet Mar. 5 (gage height, 4.22 

reet); minimum recorded, 63 second-feet Aug. 24.

1921-49: Maximum discharge, 28,600 second-feet Dec. 12, 1937 (gage height, 11.8 

feet), from rating curve extended above 9,000 second-feet on basis of velocity-area and 

A V3T studies ^minimum, 12 second-feet Aug. 5, 1926, Oct. 23, 1936.

Remarks.- Records good except those for periods of no gage-height r.ecord July to August, 

wnich are fair. Plow regulated by many small reservoirs (total usable capacity now 

about 123,060 acre-feet). Fall 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 1946-49 (gage height, In feet, 

and discharge, in second-feet)

0.4 

.5 

.7 

.9

1.1

57

72

108

150

203

1.3 

1.5 

1.8 

2.1 

2.4

266

350

510

695

915

2.7 

3.0 

3.4 

3.8 

4.2

1,150

1,410

1,790

2,270

2,830

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

150 

150 

155 

178 

178

175 

152 

181 

175 

172

172 

170 

146 

143 

139

137 

137 

248 

183 

152

150 

150 

150 

150 

143

143 

141 

139 

148 

155 

158

Nov.

160 

165 

178 

186 

197

186 

181 

183 

183 

161

181 

175 

178 

189 

195

195 

192 

192 

197- 

197

206 

215 

203 

200 

197

197 

192 

183 

178 

178

Dec.

172 

168 

189 

228 

258

183 

215 

225 

209 

206

h355 

h!89 

h291

Jan. Feb.

h!75

h!50 

152

h682

Month

Oc to 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1946 .......................

h. ......................................

ter year 1948-49 .......................

Mar.

1,600 

1,900 

2.100 

h2,270l 

2,600

2,540 

2,260 

2,090 

1,910 

1,730

1,800 

2,140 

2,180 

2,000 

1,980

2,280 

2,500 

2,540 

2,480 

2,550

2,550 

2,340 

2,130 

1,910 

1,690

1,410 

1,210 

1,150 

1,080 

1,060 

1,070

Apr.

990 

922 

915 

870 

878

692 

922 

945 

1,030 

1,070

1,080 

1,130 

1,180 

1,200 

1,160

1,120 

1,060 

990 

968 

952

938 

915 

908 

855 

840

832 

795 

772 

760 

772

Seeondfoot-days

4,920 

5,640 

8,060

209,237

5,270 

10,360 

61,030 

28,681 

30,399 

9,363 

3,125 

2,550 

2,768

172,186

May

582 

606 

624 

534 

576

716 

662 

337 

460 

624

540 

540 

564 

669 

832

900 

968 

1,070 

1,220 

1,460

1,980 

1,690 

1,770 

1,670 

1,550

1,430 

1,330 

1,230 

1,150 

1,030 

885

Maximum

248 

215

3,660

2,600 

1,200 

1,980 

765 

225 

100 

106

2,600

June

751 

682 

669 

676 

744

765 

662 

618 

528 

428

350 

272 

261 

209 

118

128 

118 

106 

104 

106

108 

100 

112 

95 

104

108 

108 

104 

89 

160

July

225 

175 

128 

106 

87

112 

148 

128 

122 

114

104 

93 

87 

87 

89

h91 

a90 

a90 

a85 

a85

a80 

h79 

a80 

a80 

a80

a80 

aao

aeo

h80 

a80 

aeo

Minimum

137

160

-

1,060 

772 

337 

89 

79 

66 

75

-

Aug.

a 80 

a80 

a80 

a80 

h79

86 

77 

a80 

84 

74

100 

h91 

89 

89 

a90

a95 

a80 

a75 

h72 

89

80 

77 

66 

70 

84

70 

69 

95 

89 

66 

82

Mean

159 

188 

260

572

170 

370 

1,969 

956 

981 

313 

101 

82.3 

92.3

472

Sept.

87 

91 

87 

89 

95

91 

86 

91 

86 

98

97 

91 

98 

95 

95

as

87 

69 

86 

91

95 

93 

86 

75

106

97 

96 

102 

100 

97

Runoff in 

acre-feet

9,760 

11,190 

15,990

415,000

10,450 

20,550 

121,100 

56,890 

60,300 

18,610 

6,200 

5,060 

5,490

341,600

a No gage-height records interpolated on basis of recorded range in "stage.

h Computed from staff-gage reading.

Note.- Mean monthly discharge for December, January, and February, and daily discharges for Mar. 

1-3 computed on basis of records for station below Pit No. 4 Dam and unpublished records of flow 

through Pit Mo. 1 powerhouse.
320 PIT RIVER BASIN

Pit River below Pit No. 4 Dam, Calif.

Location.- Water-stage recorder, lat. 40°59', long. 121°47', in SW^ sec. 17, T. 36 N., R.

'£ E., 1 mile downstream from Pit No. 4 Dam and 3 miles downstream from Screwdriver Creek

and Fit No. 3 powerhouse. Altitude of gage, about 2,345 feet (from river-profile map).

Drainage area.- 4,860 square miles, excluding Goose take Basin. 

Records available.- July 1927 to September 1949.

Average discharge.- 38 years (1911-49), 2,589 second-feet. Period 1911-27 extrapolated 

on basis or records for Pit River at Big Bend.

Extremes.- Maximum discharge during year, 5,330 second-feet Mar. 22 (gage height, 9.69 

reet); minimum, 446 second-feet Sept. 25.

1927-49: 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.

i

Remarks.- Records excellent. Flow regulated by reservoirs and power plants. Many diversions above station for irrigation.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Revisions (water years).- W 843: 1935(M).

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

5.6 410 6.7 1,180 8.0 2,560 

5.S 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 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,470 

1,540 

880 

1,900 

2,100

2,090 

2,140 

2,080 

1,880 

1,460

2,360 

2,210 

2,270 

2,380 

2,140

1,620 

1,410 

2,280 

2,310 

2,340

2,390 

2,390 

1,630 

850 

2,070

2,320 

2,500 

2,420 

2,190 

1,130 

858

Nov.

2,870 

3,150 

3,130 

2,380 

2,360

2,050 

1,490 

2,310 

2,420 

2,450,

2,140 

2,390 

1,610 

1,290 

2,140

2,450 

2,430 

2,490 

2,480 

1,620

1,360 

2,260 

2, 380| 

2,430 

1,860

2,460 

1,750 

1,390 

2,390 

2,350

Dec.

2,380 

2,500 

2,430 

1,600 

988

2,340 

2,550 

2,580 

2,300 

2,410

1,360 

1,830 

2,860 

2,660 

2,960

2,770 

2,490 

1,700 ! 

1,350 

2,280

2,260 

2,450 

2,380] 

2,460 

1,420

1,220 

2,190 

2,290 

2,360 

2,480 

2,480

Jan.

1,730 

1,460 

2,360 

2,530 

2,080

1,790 

2,120 

1,590 

1,380 

2,280

2,200 

2,050 

2,150 

2,480 

1,640

1,080 

2,210 

E,370 

E.380 

1,680

1,740 

2,010 

1,570 

2,360 

2,540

2,650 

2,280 

2,090 

1,460 

944 

1,780

Feb.

2,020 

1,980 

2^260 

2,170 

1,670

1,600 

1,990 

2,000 

2,040 

2,300

2,390 

1,570 

1,470 

2,370 

2,450

2,300 

2,280 

1,940 

1,370 

1,100

2,230 

2,550 

3,140 

3k 120 

3,160

3,050 

3,110 

3,380

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare

Aprl

Mav

June 

July 

Augu

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

3,570 

4,100 

4,550 

4,660 

4,880

4,720 

4,520 

4,340 

4,120 

3,990

3,970 

4,120 

4,430 

4,190 

4,100

4,210 

4,540 

4,700 

4,820 

4,900

4,970 

4,990 

4,770 

4,450 

4,190

3,910 

3,670 

3,570 

3,560 

3,500 

3,510

Apr.

3,500 

3,050 

1,860 

2,900 

3,000

3,190 

3,460 

3,500 

3,020 

2,400

3,010 

3,440 

3,510 

3,500 

3,450

3,600 

3,630 

3,460 

3,540 

3,5llO

3,620 

3,510 

3,500 

3,260 

3,020

3,320 

3,400 

3,160 

2,950 

2,530

Secondfoot -day s

60,608 

65,680 

68,328

960,974

60,984 

63,010 

132,520 

96,800 

95,450 

60,750 

54,043 

57,249 

53,238

868,660

May

2,230 

2,680 

2,970 

3,220 

3,280

3,180 

2,440 

1,590 

2,540 

2,760

3,040 

3,150 

3,000 

2,150 

2,900

3,030 

3,760 

3,590 

3,560 

3,390

f3,190 

3,220 

3,630 

3,620 

3,6)20

3,500 

3,520 

3,500 

3,330 

2,790 

3,070

Maximum

2,500 

3,150 

2,960

6,240

2,650 

3,380 

4,990 

3,630 

3,760 

2,990 

2,670 

2,860 

2,900

4,990

June

2,990 

2,860 

2,690 

1,920

1,320

2,710 

2,800 

2,750 

2,710 

2,770

f 1,580 

1,000 

1,900 

1,910 

2,070

1,940 

1,630 

748 

727 

1,770

2,020 

2,230 

2,540 

f2,440 

1,330

755 

2,100 

1,980 

2,120 

2,440

July

2,270 

1,150 

888 

1,000 

2,090

2,350 

2,460 

2,670 

1,960 

805

2,260 

2,350 

2,400 

2,340 

2,380 .

683 

512 

2,310 

2,300 

2,140

1,950 

1,940 

673 

494 

1,750

2,200 

2,050 

2,050 

2,150 

938 

530

Aug.

1,970 

2,200 

2,180 

2,110 

2,150

1,120 

631 

2,080 

2,320 

2,290

2,150 

2,030 

1,190 

518

2,130

2,250 

2,320 

2,150 

2,210 

554

518 

2,080 

2,340 

2,110 

2,060

2,170 

918 

960 

2,140 

2,540 

2,860

Minimum Mean

850 1,955 

1,290 2,189 

988 2,204

651 2,626

944 1,967 

1,100 2,250 

3,500 4,275 

1,860 3,227 

1,590 3,079 

727 2,025 

494 1,743 

518 1,847 

452 1,775

452 2,380

Sept.

2,900 

2,090 

f 1,460 

600 

478

2,100 

2,390 

2,410 

2,320 

788

470 

2,080 

2,090 

2,130 

2,180

2,070 

662 

864 

2,390 

2,290

2,400 

2,380 

2,430 

554 

452

2,270 

2,130 

2,100 

2,060 

1,740

Runoff in 

acre-feet

120,200 

130,300- 

135,500

1,906,000

121,000 

125,000 

262,800 

192,000 

189,300 

120,500 

107, 20C 

113,600 

105,600

1,723,000

f Computed on basis of-partly estimated gage-height record.
PIT RIVER BASIN 321

Pit River at Big Bend, Calif.

Location.- Water-Stage recorder, lat. 41°01 I , long. 1S1°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 1949.

Extremes.- Maximum discharge during year, 2,240 second-feet Mar. 22 (gage height, 8.33 

1'eetj; minimum, 44 second-feet Oct. 30, Nov. 30 (gage height, 4.12 feet).

1910-49: Maximum discharge, 34,200 second-feet Dec. 12, 1937 (gage height, 16.26 

feet), from rating curve extended above 11,000 second-feet on basis of velocity-area 

studies; minimum, that of Oct. 30, Nov. 30, 1948 (after diversion to Pit No. 5 powerhouse ).

Remarks.- Records good_. Flow regulated by reservoirs and power plants above station, 

wany 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 1948-49 (gage height, in feet, 

and discharge, in second-feet)

4.1 42 5.4 250 7.2 1,080 

4.3 62 5.7 330 7.6 1,410 

4.5 87 6.0 430 8.1 1,950 

4.8 131 6.4 SOO 

5.1 185 6.8 815

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

30

21 

33 

33 

24 

25

26 

27 

28 

29 

30 

31

Oct.

63 

54 

60 

77 

63

61 

60 

60 

61

61

60 

59 

58 

68 

51

56 

58 

58 

57 

57

57 

57 

56 

56 

58

57 

55 

56 

57 

54 

54

Nov.

110 

77 

83 

58 

54

52 

51 

51 

50 

49

49 

49 

49 

50 

57

63 

59 

54 

56 

54

54 

52 

52 

52 

51

53 

52 

51 

51 

50

Dec.

50 

52 

53 

50 

59

56 

63 

60 

57 

56

61 

131 

91 

79 

69

63 

61 

58 

57 

56

55 

54 

53 

53 

52

55 

59 

57 

61 

57 

57

Jan.

60 

56 

55 

54 

54

55 

56 

54 

53 

54

53 

52 

52 

51 

50

50 

50 

48 

49 

48

53 

52 

49 

50 

50

48 

48 

47 

47 

48 

48

Feb.

47 

48 

49 

51 

49

51

52 

50 

50 

69

60 

54 

52 

51 

51

52 

54 

55 

57 

62

68 

123 

143 

114 

105

108 

104 

98

Month

Octo 

Move

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar,

102 

583 

1,120 

1,250 

1,460

1,320 

1,090 

891 

665 

609

619 

765 

1,050 

804 

754

940 

1,350 

1,600 

1,680 

1,760

1,790 

1,850 

1,550 

1,160 

876

566 

430 

201 

202 

172 

166

Apr.

164 

164 

161 

162 

170

176 

181 

191 

200 

208

224 

235 

235 

232 

232

291 

409 

471 

288 

246

309 

269 

221

210 

200

191 

181 

179 

172 

164

Secondfoot -days

1,823 

1,693 

1,895

202,269

1,594 

1,927 

29,395 

8,736 

6,221 

4,572 

4,337 

4,136 

3,878

68,207

May

159

176 

164 

155 

153

221 

208 

ii04 

208 

206

206 

204 

204 

198 

193

291 

366 

217 

187 

189

185 

183 

302 

185 

181

177 

177 

174 

185 

176 

187

Maximum

77 

110 

131

4,940

60 

143 

1,850 

471 

366 

185 

146 

138 

134

1,850

June

185 

172 

168 

164 

164

164 

159 

157 

155 

153

152 

150 

152 

148 

148

146 

145 

152 

153 

148

148 

145 

145 

145 

143

141 

143 

145 

141 

141

July

141 

141 

146 

145 

138

138 

140 

140 

138 

146

141 

141 

141 

141 

141

143 

146 

141 

141 

138

138 

134 

143 

141

140

133 

1"36 

134 

133 

140 

138

Aug.

138 

136 

136 

138 

134

131 

136 

136 

133 

134

138 

138

131 

138 

138

133 

133 

131 

131 

136

134 

131 

131 

134 

126

129 

131 

133 

131 

129 

128

Minimum Mean

51 58.8 

49 56.4 

50 51.1

49 553

47 51.4 

47 68.8 

102 948 

161 225 

153 201 

141 152 

133 140 

126 133 

120 139

47 187

Sept.

129 

131 

128 

121 

120

123 

129 

131 

126 

131

134 

 133 

131 

129

131

131 

133 

134 

134 

128

128 

129 

128 

126 

128

139 

128 

133 

129 

133

Runoff in 

acre-feet

3,620 

3,360 

3,760

401,200

3,160 

3,830 

58,300 13,360- 

12,340 

9,070 

8,600 

8,200 

7,690

135 , 300
PIT RIVER BASIN

Pit River near Montgomery Creek, Calif.

Location.- Water-stage recorder, lat. 40°51t, long. 121°59 I , in NE£ sec. 32, T. 35 N., R.

 1 W.', 1 mile upstream from Cow Canyon Creek and 3.5 miles west of town of Montgomery 

Creek. Datum of gage is 1,075.00 feet above mean sea level (levels by Bureau of Reclamation).

Drainage area.- 5,170 square miles, excluding Goose Lake Basin. 

Records available.- December 1944 to September 1949.

Extremes.- Maximum discharge during year, 8,890 second-feet Mar. Iff (gage height, 6.92 

reet); minimum, 600 second-feet Aug. 7.

1944-49: Maximum discharge, 18,600 second-feet Dec. 28, 1945 (gage height, 10.14 

feet); minimum, 570 second-feet Oct. 21, 1945.

Remarks.- Records excellent Flow regulated by many small reservoirs and several power 

plants above station since beginning of record. Many diversions abovejstajipn^forj 

irrigation. This station" will be just above pool stage when Shasta Reservoir is full.

Rating table, vater year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

2.1 650 4.0 2,640 6.0 6,560 

2.5 940 4.5 3,430 6.5 7,800 

3.0 1,410 5.0 4,320 7.0 9.100 

3.5 1,980 5.5 5.39O

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17

18 

19 

20

21 

2Z 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,700 

1,680 

1,130 

2,190 

2,260

2,280 

2,300 

2,320 

2,140 

1,510

2,610 

2,420 

2,430 

2,540 

2,360

1,760 

1,530 

2,570 

2,480 

2,490

2,600 

2,600 

1,760 

1,040 

2,370

2,490 

2,700 

2,600 

2,450 

1,280 

979

Nov.

2.96O 

3,590 

3,690 

2,650 

2,520

2,380 

1,340 

2,550 

2,680 

2,640

2,360 

2,600 

1,780 

1,430 

2,560

2,650 

2,720 

2,680 

2,720 

1,800

1,560 

2,470 

2,630 

2,610 

1,930

2,680 

1,960 

1,540 

2,720 

2,470

Dec.

2,570 

2,680 

2,690 

1,760 

1,230

2,700 

2,900 

2,920 

2,550 

2,600

1,520 

3,020 

3,6H3 

3,260 

3,360

3,160 

2,590 

1,970 

1,610 

2,610

2,660 

2,740 

2,600 

2,640 

1,680

1,430 

2,540 

2,550 

2,730 

2,780 

2,740

Jan.

1,930 

1,790 

2,640 

2,700 

2,32O

2,050 

2,390 

1,73O 

1,610 

2,550

2,360 

2,060 

2,340 

2,610 

1,660

1,260 

2,500 

2,550 

2,660 

1,660

1,720 

2,240 

1,710 

2,620 

2,610

2,800 

2,530 

2,110 

1,590 

1,020 

1,930

Feb.

2,160 

2,170 

2,610 

2,080 

1,710

1,93O 

2,240 

2,160 

2,390 

2.73O

3.0OO 

1,910 

1,740 

2,710 

2,750

2,580 

2,540 

2,310 

1,520 

1,270

2,930 

3,650 

4,600 

4,130 

3,990

3,990 

3,910 

4,040

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

Mov

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

4,520 

5,500 

6,080 

5,960 

6,030

5,870 

S, 500 

5,260 

5,150 

5,690

5,920 

5,900 

5,870 

5,670 

5,710

6,370. 

7,350 

8,160 

8,220 

7,980

7,700 

8,160 

7,400 

6,680 

6,150

5,710 

5,390 

5,150 

4,970 

4,910 

4,820

Apr.

4, 

4, 

3, 

3, 

4,

4, 

4, 

4, 

4, 

4,

4, 

5, 

5, 

5, 

5,

5, 

5, 

5, 

5, 

S,

5, 

5,

3!

3,

Secondfoot -days

66,569 

72,870 

78,400

1,302,189

66,250 

75,850 

189,750 

139.590 

116,080 

70,844 59,975- 

61,496 

56,957

1,054,431

800 

280 

040 

970 

220

500 

880 

970 

380 

000

520 

210 

240 

210 

170

300 

500 

280 

280 

08O

100 

040 

950 

600 

190

420 

500 

340 

930 

490

May

3,050 

3,8OO 

3,950 

4,190 

4,150

4,110 

3,250 

2,340 

3,270 

3,410

3,620 

3,800 

3,610 

2,890 

3,440

3,530 

4,460 

4,240 

4,130 

3,930

3,900 

3,680 

4,190 

4,110 

4,150

4,020 

4,020 

4,020 

3,880 

3,460 

3,480

Maximum

2,700 

3,690 

3,610

10,500

2,800 

4,600 

8,220 

5,500 

4,460 

3,630 

2,660 

2,820 

2,900

8,220

June

3,630 

3,280 

3,120 

2,360 

1,620

3,190 

3,19O 

3,200 

3.O7O 

3,07O

2,150 

1,330 

2,280 

2,300 

2,410

2,270 

1,710 

956 

1,060 

2,080

2,320 

2,610 

2,790 

2,690 

1,610

978 

2,320 

2,290 

2,300 

2,660

July

2,550 

1,260 

1,010 

1,270 

2,310

2,530 

2,600 

2,660 

2,120 

1,040

2,520 

2,610 

2,580 

2,560 

2,530

882 

704 

2,480 

2,630 

2,310

2,120 

2,080 

919 

710 

1,960

2,350 

2,340 

2,330 

2,240 

1,030 

740

Aug.

2,190 

2,430 

2,290 

2,340 

2,360

1,220 

814 

2,270 

2,480 

2,440

2,290 

2,200 

1,270 

766 

2,300

2,380 

2,510 

2,210 

2,300 

736

704 

2,110 

2,590 

2,360 

2,180

2,120 

936 

1,000 

2,330 

2,550 

2,820

Minimum Mean

979 2,147 

1,340 2,429 

1,230 2,529

979 3,558

1,020 2,137 

1,270 2,709 

4,520 6,121 

3,040 4,646 

2,340 3,745 

956 2,361 

704 1,935 

704 1,984 

662 1,899

662 ' 2,889

Sept.

2,900 

2,200 

1,460 

802

745

1,990 

2,520 

2,570 

2,450 

906

731 

2,140 

2,320 

2,280 

2,310

2,210 

706 

9Q9_ 

2,560 

2,440

2,440 

2,500 

2,510 

756 

662

2,320 

2,290 

2,350 

2,110 

1,870

Runoff In 

acre-feet

132,000 - 

144,500 

155,500

2,583,000

131,400 

150,400 

376,400 

276,500 

230,200 

140.500 

119,000 

122,000 

113,000

2,091,000
PIT RIVER BASIN 323

South Fork Pit River near Likely, Calif.

Location.- Water-stage recorder, lat. 41°14', long. 120°25', in NE£ sec. 11, T. 39 N., R. 

13 t., 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 1949.

Extremes.- Maximum discharge during year, 592 second-feet May 13 (gage height, 4.45 feet); 

minimum, 9.6 second-feet Feb. 13, but may have be,en less during period of ice effect.

1928-49: Maximum discharge, 1,060 second-feet Apr. 27, '1932 (gage height, 5.55 feet)-, 

from rating curve extended aboVe 600 second-feet; minimum, 0.2 second-foot Feb. 3, 1941.

Remarks - Records good except those for periods of ice effect, which are poor. Flow regulatea by West Valley Creek Reservoir. Diversions above station for irrigation.

Revisions.- W 861: Drainage area.

Rating table, water year 1948-49, except periods of ioe effect 

(gage height, in feet, and discharge, in seoond-feet)

1.7 10 2.2 45 3.0 162 

1.8 15 2.3 56 3.4 250 

1.9 21 2.4 67 3.8 366 

2.0 28 2.6 93 4.2 502 

2.1 36 2.8 124 4.6 648

Discharge, in seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

48 

47 

46 

49 

57

43 

34 

32 

31

30

30 

30 

30 

43 

43

34 

32 

30 

30 

30

30 

28 

28 

29 

28

29 

28 

27 

30 

29 

31

Nov.

33 

34 

40 

33 

31

34 

30 

31 

30 

30

31 

30 

30 

31 

33

32 

31 

29 

32 

30

28 

29 

30 

32 

28

b27 

b26 

b25 

b24 

b22

Dec.

b20

(*) 

, b!5

Jan.

b20 

0

Feb.

b20

b20 

b21 

b22 

b24 

b26

28 

35 

34 

*36 

35

33 

33 

35

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

36 

44 

45 

40 

40

43 

47 

45 

43 

45

60 

60 

56 

74 

129

129 

116 

162 

128 

96

87 

69 

60 

69 

66

67 

106 

89 

72 

78 

78

Apr.

78 

83 

79 

79 

86

89 

124 

162 

133 

128

131 

128 

128 

128 

122

142 

162 

168 

193 

195

195 

211 

231 

284 

271

258 

260 

238 

222 

191

Secondfoot-days

1,066 

906 

540

24,948

620 

682 

2,279 

4,899 

8,489 

3,763 

1,766 

2,582 

1,131

28,723

May

178 

195 

178 

158 

148

146 

142 

162 

290 

307

273 

263 

315 

422 

534

473 

382 

350 

319 

470

405 

328 

276 

248 

222

211 

197 

191 

213 

245 

248

Maximum

57 

40

574

36 

162 

284

276 

110 

110 

57,

534

June

276 

238 

200 

178 

164

162 

154 

148 

140 

129

122 

114 

108 

102 

87

i79 ^89 

124 

146 

128

114 

108 

104 

92 

93

93 

80 

65 

63 

63

July

60 

56 

52 

52 

48

45 

40 

39 

40

40

39 

37 

34 

33 

32

36 

36 

40 

48 

56

50 

49 

49 

49 

90

108 

108 

110 

108 

90 

92

Aug.

92 

102

llo

108 

106

102 

106 

108 

108 

108

110 

108 

102 

100 

83

73 

68 

62 

62 

59

60 

60 

59 

59 

67_

77 

75 

66 

60 

63 

59

Minimum Mean

27 34.4 

22 30.2 

17.4

68.2

20 

24.4 

36 -73.5 

78 163 

JL42. _274___ 

65 125 

32 57.0 

59 83.3 

19^ 37.7

76.7

Sept.

57 

57 

52 

46 

46

46 

47 

49 

50 

49

50 

41 

34 

32 

31

30 

30 

34 

33 

31

31 

30 

32 

31 

31

32 

37 

24 ~I9~~ 

"~TS

Runoff In 

acre-feet

2,110 

1,800 

. 1,070

49,490

1,250 

1,350 

4,520 

9,720 

JUS^fiiO7,460 

5,500 

5,120 

2,240

56,960

* Winter discharge measurement made on this day. 

b Stage-discharge relstlon affected by ice.
324 PIT RIVER BASIN

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 K., 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 1949. July 1926 to April 1928 at site 0.5 

mile upstream.

Average discharge.- 22 years (1926-29, 1930-49), 120 second-feet.

Extremes.- Maximum discharge during y*ear, 206 second-feet May 13 (gage height, 2.80 feet); 

minimum, 94 Second-feet Sept. 4.

1926-49: 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 secondfeet 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 1948-49 (gage height, in feet, 

and discharge, in second-feet)

2.2 90 2.6 159 

2.3 104 2.7 182 

2.4 120 2.8 206 

2.5 138

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

120 

116 

117 

117 

118

118 

116 

118 

118 

117

118 

120 

118 

120 

120

120 

120 

118 

117 

117

117 

117 

117 

117 

117

117 

117 

118 

117 

120 

124

Nov.

146 

142

136 

125 

124

124 

120 

116 

120 

120

120 

120 

118 

120 

122

120 

118 

116 

120 

118

117 

120 

120 

118 

117

115 

114 

115 

114 

117

Dec.

117 

120 

115 

109 

109

107 

110 

112 

114 

112

112 

114 

112 

110 

107

106 

106 

106 

104 

106

112 

112 

107 

104 

104

106 

106 

106 

107 

107 

107

Jan.

109 

109 

107 

107

allO

114 

114 

114 

114

Feb.

115 

115 

115

115 

112

114

112 

112 

112 

114

114 

110 

110 

112 

112

112

112 

112 

112 

109

106 

110 

115 

114 

112

112 

112 

112

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebri 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

112 

112 

112 

112 

112

112 

110 

110 

110 

110

112 

110 

110 

110 

114

114 

114 

115

115 

115

114 

114 

112 

112

112

112 

114 

112 

112 

112 

112

Apr.

112 

112 

112 

112 

115

115 

115 

115 

117 

118

120 

122 

122 

124 

125

127 

129 

131 

136 

136

138 

144 

153

153 

146

144 

146 

146 

142 

138

Secondfoot-days

3,665 

3,636 

3,386

48,756

3,418 

3,144 

3,479 

3,665 

4,956 

3,690 

3,321 

3,249 

3,076

43,087

Peak discharge (base, 170 sec. -ft.).- May 13 (11 to 12

May

140 

157 

153 

146 

146

146 

148 

151 

148 

155

177 

182 

194

197 

162

180 

160 

159 

153 

153

151 

151 

153 

159 

168

164 

157 

153 

151 

153 

155

Maximum

124 

146 

120

313

114 

115 

115 

153 

194 

151 

112 

110 

107

194

June

148 

146 

144 

146

151

151 

148 

142 

142 

142

140 

136 

134 

129 

125

122 

120 

120 

120 

124

122 

120 

120 

117 

115

114 

114 

114 

114 

110

July

107 

107 

109 

109 

109

109 

109 

109 

107 

109

110 

112 

110 

110 

109

109 

109 

109 

109 

109

106 

103 

98 

101 

104

104 

104

104 

104 

106 

107

Aug.

107 

107 

107 

107 

107

107 

107 

107 

104 

104

100 

100 

98 

97 

96

98 

98 

98 

103

106

107 

107 

109 

109 

109

109 

109 

110 

109 

107 

104

Minimum Mean

117 116 

114 121 

104 109

104 133

107 110 

106 112 

110 112 

112 129 

140 160 

110 130 

98 107 

97 105 

98 103

97 118

Sept.

103 

100 

100 

101 

103

101 

101 

103

106 

107

107 

107 

107 

106 

104

104 

104 

104 

104 

104

106 

104 

96 

98 

96

98 

100 

100 

100 

100

Runoff In 

acre-feet

7,270 

7,216 

6,720

96,710

6,780 

6,240 

6,900 

7,670 

9,830 

7,720 

6,590 

6,440 

6,110

65,480

p.m.) 206 sec. -ft. j May 25 (12 p.m.) 177

sec.-ft.

a No gage-height record; discharge interpolated.
PIT RIVER BASIN 325

Squaw Creek above Shasta Reservoir, Calif.

Location.- Water-stage recorder, lat. 40°S1', long. 122°07', in SW£ sec. 29, T. 35 N., R. 

a W., 0.5 mile upstream from Salt Creek, about 2 miles upstream from Shasta Reservoir, 

and 10 miles west of town of Montgomery Creek. Altitude of'gage, about 1,170 feet 

(from topographic map).

Drainage area.- 65.3 square miles.

Records available.- December 1944 to September 1949.

Extremes.- Maximum discharge during year, 1,930 second-feet Mar. 18 (gage height, 11.62 

reetJ; minimum, 10 second-feet Sept. 22-25.

1944-49: Maximum discharge, 6,150 second-feet Dec. 27, 1945 (gage height, 16.00 

feet); minimum, that of Sept. 22-25-, 1949.

Remarks.- Records good. No diversions.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

5.8 10 6.9 70 9.1 545 

5.9 13 7.2 100 9.5 720 

6.0 16 7.5 138 10.0 950 

6»1 20 7.9 206 10.5 1,210 

6.3 30 8.3 290 11.0 1,510 

6.6 48 8.7 396 12.0 2,22O

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

21 

20 

26 

43 

31

25 

24 

22 

22 

21

21 

21 

21 

26 

26

22 

21 

21 

21 

20

20 

20 

20 

20 

20

20 

19 

19 

20 

20 

20

Nov.

112 

77 

116 

52 

39

34 

30 

28 

26 

26

25 

34 

24 

24 

33

32 

42 

32 

35 

36

32 

30 

28 

27 

26

25 

24 '24 

24 

24

Dee.

23 

23 

32 

27 

47

52 

66 

67 

56 

49

50 

198 

162 

110 

83

68 

60 

53 

48 

46

43 

40 

36 

37 

38

36 

35 

36 

41 

43 

41

Jan.

49 

45 

38 

34 

39

39 

39 

38 

33 

25

34 

37 

35 

32 

31

30 

29 

29 

28 

28

30 

33 

28 

22 

26

29 

26 

26 

26 

26 

26

Feb.

26 

26 

30 

36 

37

30 

35 

33 

30 

86

232' 

112 

82 

70 

64

62 

65 

79 

100 

132

238 

790 

801 

485 

399

369 

350 

309

Month

Octo 

Hove 

Dece

Ca

Jam* 

Pebr 

Marc 

Aprl 

Mav

June 

July 

Augfe 

Segt

¥a

b

mber. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

318 

746 

979 

693 

505

410 

350 

312 

337 

675

1,100 

873 

720 

594 

612

992 

1,550 

1,870 

1,630 

1,450

1,040 

985 

955 

783 

648

545 

473 

423 

378 

348 

314

Apr.

297 

279 

264 

250 

244

238 

240 

234 

228 

224

222 

220 

208 

197 

188

183 

177 

167 

160 

151

141 

137 

131 

124 

119

114 

111 

108 

106 

99

Seeondfoot-days

693 

1,111 

1,746

81,200

990 

5,108 

23,608 

5,561 

2,273 

1,171 

631 

424 

347

43,663

May

96 

106 

95 

90 

87

84 

81 

80 

82 

81

75 

72 

71 

86 

73

69 

66 

65 

64 

66

68 

62 

59 

58 

56

54 

54 

54 

75 

76 

68

Maximum

43 

116 

198

2,900

49 

801 

1,870 

297 

106 

64 

27 

16 

13

1,870

June

64 

57 

53 

51 

49

47 

46 

44 

43 

42

41 

40 

39 

38 

37

37 

34 

35 

35 

36

36 

33 

32 

31 

30

29 

28 

28 

28 

28

July

27 

26 

26 

25 

25

24 

24 

24 

22

22

22 

21 

20 

20 

20

20 

19 

18 

18 

18

18 

18 

18 

18 

18

18 

17 

17 

16 

16 

16

Aug.

16 

16 

15 

15 

15

15 

15 

15 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

13 

13

13 

13 

12 

12 

12

12 

12 

12 

13 

13 

12

Minimum Mean

19 22.4 

24 37.0 

23 56.3

18 222

22 31.9 

26 182 

312 762 

99 185 

54 73.3 

28 39.0 

16 20.4 

12 13.7 

10 . 11.6

10 120

Peak discharge (base. 1.120 see.-ft.)).- Feb. 22 (4:30 p.m.) 1,530 sec. -ft. j Mar. 11 (5

Sept.

12 

12 

12 

11 

12

12 

12 

13 

12 

12

12 

12 

12 

12 

12

11 

11 

11 

11 

11

11 

10 

10 

10 

11

11 

12 

12 

13 

12

Runoff in 

acre-feet

1,370 

2,200 

3,460

161,000

1,960 

10,130 

46,830 

11,030 

4,510 

2,320 

1,250 

841 

688

86,590

a.m.) 1,160

sec.

 4T8M O - 51 - 21
326 PIT RIVER BASIN

McCloud River near McCloud, Calif.

Location.- Water-stage recorder, lat. 41°11', long. 122°04', in NE^ sec. 34, T. 39 N., R. 

a W . , 0.5 mile downstream from Angel Creek and 6 miles southeast of McCloud. Altitude 

of gage, ahgut 2,750 feet (from topographic map):

Drainage area.- 382 square miles.

Records available.- April 1931 to September 1949.

Average discharge.- 18 years, 833 second-feet.

Extremes . - Maximum discharge during year, 1,160 second-feet Mar. 19 (gage height, 1.92 

feet) ; minimum, 694 second-feet Feb.- 12.

1931-49: 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 Avd 

studies; minimum, 524 second-feet Nov. 23, 24, 1932.

Remarks . - Records excellent. Two small diversions above station for irrigation. 

Revisions. - W 1091: Drainage area.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, In second-feet)

1.0 670 1.6 965 

1.2 754 1.8 1,080 

1.4 853 2.1 1,290 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

741 

741 

750 

745 

741

736 

736 

736 

736 

736

736 

736 

736 

736 

736

732 

732 

732 

732 

732

732 

732 

732 

732 

728

728 

723 

723 

723 

723 

728

Nov.

754 

750 

764 

750 

741

736 

732 

732 

728 

728

728 

728 

728 

728 

732

732 

732 

728 

728 

723

723 

723 

723 

723

719

719 

719 

719 

719 

719

Dec.

719 

719 

719 

714 

719

719 

719 

719 

714. 

714

714 

728 

728 

723 

719

719 

719 

714 

710 

714

714 

706 

706 

706 

710

710 

710 

710 

710 

710 

710

Jan.

710 

710 

706 

702 

3702

3706 

3706 

3706 

3702 

3698

<a698 3702- 

706 

706 

702

702 

706 

706 

706 

706

710 

706 

706 

702 

698

702 

702 

702 

702 

702 

702

Feb.

702 

702 

702 

702 

702

702 

702 

702 

702 

706

702 

698 

698 

702 

702

706 

706 

706 

710 

710

714 

745 

754 

741 

736

736 

741 

736

Month

Goto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

itiber. .... ..............-..-------....-.-

lendar year 1948

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

ter year 1948-49 .......................

Mar.

736 

745 

745 

736 

732

732 

732 

728 

728 

741

754 

750 

745 

745 

768

817 

965 

1,120 

1,150 

1,090

1,020 

977 

924 

896 

869

853 

848 

848 

833 

828 

822

Apr.

1, 

1, 

1, 

1,

1, 

1, 

1,

1, 

1,

1,

1, 

1, 

1, 

1,

1, 

1,

1,

Secondfoot-days

22,742 

21,908 

22,165

305,706

21,822 

19,967 

25,977 

29,635 

29,407 

24,039 

23,574 

22,822 

21,561

285,619

Peak dlscharee (base, 1,000 sec. -ft.).- Mar. 19 (1 p.m

822 

828 

828 

833 

848

864 

880 

896 

919 

942

977 

030 

030 

020 

030

060 

080 

120 

140 

100

080 

070 

100 

080 

050

030 

020 

010 

983 

965

May

965

1,030 i,oao

1,010 

983

971 

965 

965 

995 

1,030

1,020 

1,020 

1,020 

1,010 

989

971 

953 

930 

913 

907

907 

902 

891 

885 

880

880 

869 

864 

864 

869 

869

Maximum

750 

764 

728

2,430

710 

754 

1,150 

1,140 

1,080 

869 

773 

764 

728

1,150

June

869 

848 

833 

828 

828

822 

822 

817 

812 

807

802 

802 

802 

802 

802

797 

792 

788 

783 

783

783 

783 

783 

783 

783

778 

778 

778 

778 

773

July

773 

773 

773 

768 

768

768 

768 

768 

768 

768

768 

764 

764 

764 

764

759 

759 

759 

754 

754

754 

754 

759 

759 

754

754 

750 

750 

750 

745 

741

Aug.

745 

741 

741 

741

736 

736 

736 

736 

732

732 

732 

732 

750

764

750 

741 

736 

732 

728

728 

728 

728 

728 

728

728 

728 

736 

745 

736 

732

Minimum Mean

723 734 

719 750 

706 715

690 835

698 704 

698 713 

728 838 

822 988 

864 949 

773 801 

741 760- 

728 736 

710 719

698 783

.) 1,160 sec. -ft. j Apr. 19 (1 p.m

Sept.

728 

728 

728 

723 

728

723 

723 

723 

723 

723

719 

719 

719 

719 

719

719 

714 

714 

714 

714

714 

714 

714 

714 

714

714 

719 

714 

714 

710

Runoff in 

acre- feet

45,110 

43,450 

43,960

606,400

43,280 

39,600 

51,520 

58,780 

58,330 

47 , 680 

46,760 

45,270 

42,770

566,500

.) 1,140

sec.-ft.

a Ho gage-height record; dischsrge computed on basis of recorded rsnge in stage and records for 

station above Shsfts Reservoir.
PIT RIVER BASIN 

MoCloud River above Shasta Reservoir, Calif.

327

Location.- Water-stage recorder, lat. 40°57', long. 122°13', inJJW^ sec. 28, T. 36 N., R. 

ii w., Just upstream from Shasta Reservoir, 0.3 mile downstream from Bollibokka Creek 

and 11 miles east of town of Delta. Datum of gage Is 1,100 feet above mean sea level 

(levels by Bureau of Reclamation).

Drainage area.- 606 square miles.

Records available.- October 1945 to September 1949.

Extremes.- Maximum discharge during year, 7,590 second-feet Mar. 19 (gage height, 16.87 

reetj; minimum, 850 second-feet. Sept. 24.

1945-49: 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, 850 second-feet Sept. 14, 15, 21-30, Oct. 1-7, 1947, Sept. 24, 1949.

Remarks.- Records excellent. Some very small diversions.above station for domestic use.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, In aeoond-feet)

10.8 83O 12. 0 1,660 15. 0 4,850 

11.0 935 13.0 2,540 16.0 6,25O 

11.4 1,190 14. O 3,60O 17.0 7,80O

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

946 

94O 

996 

1,010

974

957 

946 

946 

940 

940

946 

94O 

94O 

968 

95?

940 

935 

935 

930 

930

930 

924 

924 

935 

924

924 

918 

918 

924 

924 

924

Nov.

1,2OO. 

1,110 

1,260 

1.04O 

990

974 

962 

946 

940 

940

935 

935 

935 

935 

974

990 

990 

962 

984 

974

957 

952 

946 

940 

935

935 

924 

924 

924 

924

Dec.

918 

930 

940 

924 

974

946 

979 

968 

962 

957

962 

1,250 

1,250 

1,110 

1,030

1,010 

990 

968 

957 

957

946 

935 

924 

924 

935

930 

935 

935 

952 

940 

940

Jan.

957 

946 

924 

913 

918

924 

924 

924 

908 

891

902 

90S 

908 

908 

902

896 

891 

896 

891 

891

902 

913 

891 

891 

880

891 

886 

886 

880 

880 

880

Feb.

880 

886 

896 

908 

886

908 

886 

886 

886 

990

1,100 

979 

940 

924 

918

913 

924 

940 

968 

1,020

1,440 

- 3>300 

2,910 

2,030 

1,800

1,750 

1,740 

1,660

Month

Odto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,640 

2,090 

2,480 

2,2OO 

1,920

1,740 

1,630 

1,550 

1,620 

1,950

2,650 

2,470 

2,220 

2,040 

2,370

3,900 

5,79O 

6,860 

6,96O 

5,890

4, ISO 

3,470 

3,010 

2,690 

2,470

2,300 

2,210 

2,160 

2,070 

2,000 

1,920

Apr.

1, 

1, 

1, 

1, 

1,

1, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

2,

2, 

2, 

2, 

2, 

1,

1, 

1, 

1, 

1, 

1,

Seeondfoot-daya

29,180 

29,337 

30,278

555,471

28,002 

35,268 

88,420 

61,770 

46,190 

32,068 

28,969 

27,405 

25,930

462,817

880 

860 

860 

860 

900

960 

040 

110 

140 

200

280 

360 

310 

220 

210

250 

310 

330 

300 

180

100 

080. 

100 

050 

960

870 

830 

800 

740 

680

May

1,650 

1,790 

1,830 

1,720 

1,640

1,6OO 

1,590 

1,580 

1,620 

1,650

1,640 

1,640 

1,630 

1,600 

1,560

1,520 

1,480 

1>430 

1,390 

1,400

1,400 

1,360 

1,320 

1,290 

1,280

1,250 

1,240 

1,22O 

1,280 

1,300 

1,290

Maximum

1,010 

1,260 

1,250

12,1OO

957 

3,300 

6,96O 

2,36O 

1,830 

1,270 

974 

908 

875

6,960

June

1,270 

1,220 

1,190 

1,170 

1,160

1,15O 

1,130 

1,120 

1,110 

1,090

1,080 

1,080 

1,O6O 

1,O60 

1,050

1,040 

1,040 

1,030 

1,030 

1,030

1,020 

1,010 

1,010 

1,000 

996

990 

990 

984 

979 

979

July

974 

968 

962 

962 

962

962 

957 

952 

952 

952

946 

94O 

940 

935 

935

935 

930 

930 

924 

924

918 

918 

918 

918 

913

908 

908 

908 

908 

9O2 

908

Aug.

908 

902 

9O2 

896 

891

891 

891 

886 

891 

891

886 

886 

886 

880 

S80

886 

886 

886 

880 

88O

875 

875 

875 

875 

875

875 

875 

875 

875 

875 

870

Minimum Mean

918 941 

924 978 

918 977

908 1,518

880 903 

880 1,260 

1,550 2,952 

1,680 2,059 

1,220 1,490 

979 1,069 

902 934 

870 884 

850 864

850 1,268

Sept.

876 

870 

870 

870 

870

87O 

87O 

875 

875 

87O

870 

865 

865 

865 

865

865 

860 

860 

860

x 86O

860 

860 

855 

850 

855

S55 

860 

865 

865 

860

Runoff in 

acre-feet

57,880 

58,190 

60,060

1,102,000

55,540 

69,95O 

175,400 

122,5OO 

91,620 

63,610 

57,460 

54,360 

51,430

918, OOO

Peak discharge (base, 2,600 sec. -ft.).- Feb. 22 {4 p.m.) 5.O40 sec. -ft. ; Mar. 11 (9 a.m.) 2,690

see.-ft.; Mar. 19 (6 to 7 p.m.) 7,590 sec.-ft.
328 CLEAR CREEK BASIN

Clear Creek near Igo, Calif.

Location.- Water-stage recorder, lat. 40°30'50", long. 122°31'20", in NEtNE^ sec. 27, T. 

3Jl M., R. 6 W-, at highway bridge on Redding-Igo road, 1.0 mile northeast of Igo, Bmllea 

southwest of Redding, and 9 miles upstream from mouth. Altitude of gage, about 700 

feet (from topographic map).

Drainage area.- 231 square miles. 

Reeords_available.- October 1940 to September 1949.

Extremes.- Maximum discharge during year, 7,360 second-feet Mar. 18 (gage height, 8.37 

feet); minimum, 16 second-feet Sept. 23-26.

1940-49: 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, 10 second-feet Sept. 12-15, 1944, Sept. 19, 1945..

Maximum stage known, about 13 feet in February 1940, from information by local residents.

Remarks.- Records good except those for periods of ice effect, which are fair. 

versions above station.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height., In feet, and discharge, In second-feet) 

(Shifting-control method used June 6 to Sept. 30)

Small di2.1 12 3.0 170 5.0 1,400 

2.2 19 3.2 236 5.5 1,930 

2.3 28 3.5 360 6.0 2,570 

2.4 40 3.8 515 6.5 3,340 

2.6 72 4.2 780 7.0 4,220 

2.8 114 4.6 1,060 8.0 6,420

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

40 

40 

121 

119 

83

65 

64 

65 

55 

54

54 

57 

54

55 

57

54 

50 

49 

49 

49

49 

49 

49 

49 

49

48 

46 

46 

46 

49 

49

Nov.

148 

122 

93 

83 

70

64 

60 

58 

55 

55

54 

52 

52 

54 

67

70 

78 

70 

67 

72

69 

64 

62 

60

58

58 

57 

55 

57 

57

Dec.

55 

57 

72 

65 

119

93 

149 

146 

107 

98

93

109 

161 

132 

107

96 

91 

85 

80 

78

78 

70 

60 

b72 

83

100 

127 

114 

135 

135 

117

Jan.

117 

112 

91 

b80 

b92

93 

93 

96

b85 

b80

b85 

b89 

89 

87 

80

b76 

78 

74 

72 

67

72 

76 

67 

62 

b62

b60 

*b60 

67 

64 

64 

*62

Feb.

62 

62 

67 

76 

69

72 

b73 

80 

76 

346

354 

180 

137 

122 

112

112 

117 

127 

143 

189

*270 

1,230 

1,030 

608 

493

575 

647 

521

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

549 

2,570 

2,990 

1,580 

1,090

899 

780 

634 

1,150 

2,750

3,860 

2,380 

1,560 

1,260 

1,430

2,390 

3,400 

6,150 

5,760 

3,760

2,420 

2,050 

1,760 

1,510 

1,280

1,140 

1,060 

1,020 

934 

871 

815

Apr.

780 

766 

745 

724 

731

766 

801 

822 

801 

815

850 

857 

801 

738 

717

717 

710 

689 

647 

594

563 

551 

533 

504 

471

440 

425 

415 

405 

375

Secondfoot-days

1,763 

2,041 

3,084

100,371

2,452 

7*950 

61,802 

19,753 

7,664 

3,436 

1,377 

793 

654

112,769

Peak discharge (base, 3,600 sec. -ft.).- Mar. 3 (12:30

May

360 

370 

342 

320 

307

290 

282 

274 

274 

278

263 

247 

255 

247 

255

236 

219 

222 

216 

233

236 

209 

199 

183 

176

170 

164 

161 

202 

255 

219

Maximum

121 

148 

161

3,690

117 

1,230 

6,150 

857 

360 

219 

67 

33 

33

6,150"

June

219 

199 

183 

167 

155

149 

140 

135 

130 

122

117 

114 

107 

105 

100

96 

93 

96 

98 

100

98 

93 

87 

85 

80

76 

76 

74 

72 

70

July

67 

65 

62 

60 

58

58 

57 

55 

52 

49

49 

46 

44 

43 

42

40 

39 

39 

38 

39

39 

36 

36 

36 

35

35 

34 

33 

32 

32 

27

Aug.

32 

33 

30 

27 

27

28 

28 

28 

27 

27

28 

28 

28 

28 

26

25 

25 

25 

24 

24

22 

22 

22 

22 

23

23 

23 

23 

22 

22 

21

Minimum Mean

40 56.9 

52 68.0 

55 99.5

22 274

60 79.1 

62 284 

549 1,994 

375 658 

161 247 

70 115 

27 44.4 

21 25.6 

16 21.8

16 309

Sept.

19 

19 

18 

18 

18

19 

20 

24 

33 

33

29 

27 

26 

24 

24

23 

22 

21 

20 

20

19 

18 

16 

16

16

17 

18 

24 

27 

26

£S?ft£

3,500 

4,050 

6,120

199,100

4,860 

15,770 

122,600 

39,180 

15,200 

6,820 

2,730 

1,570 

1,300

223,700

a.m.) 3,950 sec. -ft.; Mar. 10 (11 p.m.)

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
COTTONWOOD CREEK BASIN 329

Cottonwood Creek near Cottqnwood, Calif.

Location.- Water-stage recorder, lat. 40°24', long. 122°13', in NE£ sec. 7, T. 29 N., R. 

3 w., 2 miles east of Cottonwood and 2 miles upstream from mouth. Altitude of gage, 

about 370 feet (from river-profile map).

Drainage area.- 945 square miles.

Records available.- October 1940 to September 1949.

Extremes - Maximum discharge during year, 27,200 second-feet probably Mar.19 (gage height, 

IFTWfeet, from high-water mark in gage well), from rating curve extended above 5,000 

second-feet; minimum, 34 second-feet Aug. 29.

1940-49: Maximum discharge, 52,300 second-feet Mar. 1, 1941 (gage height, 15.4 feet), 

from rating curve extended above 30,000 second-feet; minimum, 15 second-feet on several 

days during September 1945.

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

small diversions above station. 

Rating tables, water year 1948-49 (gage height, In feet,

and discharge, in second-feet) 

(Shifting-control method used June 27 to Aug. 9, Sept. 13-30)

Oct. 1 to Mar. 2 Mar. 3 to Sept. 30

1.6

1.7

1.8

1.9 

2.1

129

209

2.3 

2.5 

2.7 

3.0 

3,5

300

405

525

730

1,080

4.0 

4.5 

5.1

1,450

1,880

2,490

1.0

1.1

1.2

1.3

1.4

1.5

1.6 112

1.7 

1.9 

2.1 

2.3 

2.6 

3.0

142

218

306

405

600

900

4.0 1,750

5.0 

6.0 

7.0 

8.0 

9.0 

9.7

2^800

4,100

5,940

8,580

12,200

15,300

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

73 

67 

75 

122 

119

109 

95 

75 

70 

75

92 

105 

112 

112 

105

81 

75 

73 

67 

73

84 

105 

84 

78 

67

56 

60 

65 

70 

67 

70

Nov.

95 

126 

115 

109 

109

102 

89 

84 

81 

81

78 

75 

75 

73 

75

89 

98 

105 

102 

87

84 

84 

78 

75 

73

70 

67 

67 

65 

62

Dee.

62 

62 

65 

67 

89

126 

133 

213 

209 

168

145 

137 

205 

267 

213

176 

160 

148 

137 

126

122 

119 

102 

87 

89

141 

276 

465 

378 

441 

320

Jan.

291 

300 

244 

176 

145

188 

193 

193 

180 

115

112 

126 

152 

160 

137

129 

129 

126 

133 

115

126 

129 

122 

105 

89

95 

115 

122

112 

112 

112

Feb.

109 

109 

115 

119 

129

129 

129 

148 

152 

184

975 

532 

345 

276 

253

235 

231 

240 

£67 

310

350 

463 

1,430 

968 

877

814 

940 

814

Month

Octo 

Nove

Dece

Ca

Janu Febi" 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

730 

2,470 

6,010 

4,VOO 

2,730

a2,300 

a2,000 

al,600 

al,700 

a5,500

a5,000 

a8,000 

a4,000 

a2,500 

a2,500

aS.OOO 

aS.OOO 

a8,000 

a!5,000 

a 9, 000

a5,000 

a4,000 

a3,200 

2,820 

2,290

1,980 

1,830 

1,770 

1,590 

1,450 

1,350

Apr,

1,260 

1,210 

1,190 

1,160 

1,140

1,160 

1,210 

1,230 

1,210 

1,250

1,380 

1,440 

1,300 

1,170 

1,120

1,120 

1,190 

1,150 

1,050 

964

916 

908 

876 

836 

760

663 

621 

614 

600 

572

Seeondfoot-days

2,581 

2,573 

5,448

163,310

4,583 

11,643 

117,020 

31,270 

13,076 

5,497 

2,061 

1,268 

1,280

198,300

May

530 

524 

510 

478 

447

423 

405 

411 

411 

429

478 

491 

472 

524 

517

491 

453 

435 

447 

405

411 

390 

364 

335 

320

306 

302 

297 

316 

395 

359

Maximum

122 

126 

465

4,810

300 

1,430 

15,000 

1,440 

530 

335 

97 

51 

51

15,000

June

335 

325 

302 

284 

266

262 

249 

236 

227 

214

206 

194 

178 

164 

156

156 

142 

139 

139 

146

148 

146 

136 

127 

121

118 

110 

97 

88 

88

July

97 

92 

87 

83 

90

90 

92 

87 

88 

88

87 

80 

72 

60 

55

55 

52 

52 

58 

55

54 

49 

49 

53 

51

48 

45 

45 

49 

46 

52

Minimum

56 

62 

62

40

89 

109 

730 

572 

297 

88 

45 

36 

38

36

Aug.

51 

43 

42 

40 

38

38 

37 

40 

38 

36

39 

43 

47 

40 

42

40 

42 

37 

41 

44

43 

42 

44 

43 

40

40 

43 

42 

37 

38 

38

Mean

83.3 

85.8 

176

446

148 

416 

3,770 

1,042 

422 

183 

66.5 

40.9 

42.7

543

Sept.

41 

40 

42 

43 

41

44 

48 

47 

46 

44

42 

40 

38 

42 

42

39 

42 

42 

45 

45

51 

46 

42 

40 

41

39 

39 

43 

44 

42

Runoff In 

acre -feet

5,120 

5,100 

10,810

323,900

9,090 

23,090 

232,100 

62,020 

25,940 

10,900 

4,090 

2,520 

2,540

393,300

Peak discharge (base, 6,900 sec. -ft.).- Mar. 3 (4 a.m.) 8,730 see. -ft. ;' Mar. 4 (1 a.m.) 7,310 sec.

ft.j Mar, 19 (firae unknown) 27,200 sec. -ft.

a No gage-height records discharge computed on basis of weather records and records for stations 

on nearby streams.
330 BATTLE 'CREEK BASIN

Battle Creek near Cottonwood, Calif.

Location. - Water-stage recorder, lat. 40°24', long. 122°08', in NWtr sec. 6, T. 29 N., R. 

"V 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.- 362 square miles.

Records available.- October 1940 to September 1949.

Extremes.- Maximum discharge during year, 5,030 seoond-feet Mar. 10 (gage height, 7.40 

feet ); minimum not determined; minimum gage height, 1.20 feet June 25.

. 1940-49: 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, that of 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. Flow regulated by four small power plants and several small

reservoirs above station. About 10 second-feet diverted above station for irrigation.

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, in second-feet)

2.3 156 3.0 350 4.6 1,080 

2.4 17S 3.4 495 5.0 1,420 

2.6 228 3.8 660 5.5 1,980 

2.8 286 4.2 850 6.0 2,750

Discharge, in seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

225 

334 

234 

234 

236

242 

234 

231 

236 

234

239 

236 

234 

250 

265

265 

256 

256 

256 

262

265

265 

265 

256 

265

250 

253 

253 

262 

268 

262

Nov.

286 

413 

331 

331 

292

283 

277 

£68 

271 

265

259 

277 

259 

265 

318

344 

308 

289 

274 

280

265 

250 

259 

259 

259

356 1 

253 

256 

256 

256

Dec.

256 

262 

283 

271 

262

277 

344 

337 

277 

265

265 

695 

443 

318

308

277 

283 

271 

259 

262

268 

250 

250 

248 

259

331 

413 

296 

280 

277 

271

Jan.

277 

286 

259 

250 

253

274 

265 

256 

262 

236

259 

256 

259 

256 

256

250 

265 

2S9 

253 

256

259 

256 

265 

259

250

256 

256 

256 

245 

259 

259

Feb.

250 

250 

250 

253 

271

259 

289 

262 

262 

271

315 

286 

265 

280 

262

253 

253 

256 

256 

245

283 

302 

396 

312 

302

299 

296 

305

Month

Octo 

Hove

Decs

Ca

Janu. 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary ...

ter year 1948-49 .......................

Mar.

302 

674 

812 

740 

491

495 

410 

378 

402 

1,790

2,080 

987 

587 

491 

607

535 

491 

503 

1,240 

1,060

642 -

587 

642 

620 

519

467 

455 

452 

424 

399 

388

Apr.

385- 

392 

382 

406 

406

406 

406 

406 

413 

424

452 

471 

475 

463 

467

495 

519 

523 

555 

523

503 

511 

527. 

499 

479

459 

455 

455 

487 

420

Seeondfoot-days

7,723 

8,459 

9,358

175,071

8,007 

7,783 

20,670 

13,764 

13,384 

7 , 988 

5,552 

5,183 

5,110

, 112,981

Peak discharge (base, E.500 sec. -ft.).- Dec. 12 (8 p.m

May

402 

444 

507 

438 

416

410 

416 

406 

420

420

487 

503 

535 

555 

515

507 

495 

455 

420 

399

388 

368 

374 

360 

368

374 

374 

360 

382 

452 

434

Maximum

268

413 

695

4,530

286 

396 

2,080 

555 

555 

406 

195 

185 

178

2,080

June

406 

364 

324 

308 

299

318 

324 

324 

305 

283

286 

280 

274 

274 

271

256 

248 

253 

245 

250

234 

218 

215 

207 

207

207 

Z07 

207 

202 

192

July

192 

190 

185 

195 

185

183 

185 

185 

178 

178

190 

178 

178 

176 

171

171 

171 

176 

169 

178

176 

176 

178 

174 

190

178 

171 

176 

176 

176 

167

Aug.

185 

176 

174 

169 

169

169 

165 

174 

171 

167

167 

165 

167 

158 

169

165 

167 

165 

165

163

158 

167 

165 

165 

165

163 

163 

ISO 

171 

169 

167

Minimum Mean

225 249 

250 282 

248 302

197 478

236 258 

245 278 

302 667 

382 459 

360 432 

192 266 

167 179 

158 167 

158 170

158 310

Sept,

163 

163 

165 

158 

165

171 

165 

165 

169 

176

169 

176 

176 

176 

174

174 

174 

165 

178 

169

171 

171 

169 

171 

165

178 

171 

176 

It6 

171

Runoff In 

acre-faet

15,320 

16,780 

18,560

347,300

15,880 

15,440 

41,000 

27,300 

26,550 

15,840 

11,010 

10,280 

10,140

224,100

.) 2,750 sec. -ft. 5 Mar. 10 (5:30 p.m.) 5,030
ANTELOPE CREEK BASIN 331

Antelope Creek near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 122°07', in SE^.sec. 7, T. 27 N./R. 

iT w., 6 miles upstream from mouth and 6 miles east of Red Bluff. Altitude of gage, 

about 340 feet (from topographic map).

Drainage area.- 124 square miles.

Records available.- October 1940 to September 1949.

Extremes.- Maximum discharge during year, 3,610 second-feet Mar. 11 (gage height, 8.12 

feet); minimum, 20 second-feet Oct. 19.

1940-49: Maximum discharge, 10,400 second-feet Feb. 6, 1942 (gage height, 13.9 

feet); minimum, 14 second-feet Oct. 1, 1940.

Flood of December 1937 reached stage of about 22 feet, from floodmarks.

Remarks..- Records good. Small diversion above station for Red Bluff water supply during 

uctooer to June of. each year.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

37 

37 

37 

38 

39

39 

38 

38 

38 

38

39 

40 

40 

40

41

40 

39 

38 

34 

36

37 

37 

37 

37 

38

38 

37 

38 

40 

40 

40

Nov.

45 

68 

51 

47 

42

41 

40 

40 

40 

40

40 

40 

40 

40 

53

56 

48 

46 

45 

46

45 

44 

44 

44 

44

44 

44 

44 

44 

44

Dec.

44 

45 

62 

52 

58

72 

60 

92 

62 

56

53 

53 

70 

66 

63

58 

56 

52 

51 

49

49 

48 

45 

43 

47

59 

87 

68 

58 

55 

53

Jan.

52 

63 

52 

43 

47

47 

47 

47 

43 

41

41 

47 

47 

42 

42

40 

40 

40 

40 

41

42 

46 

42 

40 

40

44 

42 

40 

40 

40 

40

Feb.

40 

40 

44 

44

72

63 

76 

58 

52 

55

156 

77 

51 

47 

44

43 

46 

52 

52 

63

97 

20f7 

208 

126 

99

90 

79 

68

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

63 

749 

995 

686 

302

310 

204 

217 

189 

1,360

1,920 

855 

354 

237 

261

302 

258 

223 

760 

479

290 

240 

251 

201 

163

142 

124 

109 

97 

90 

83

Apr.

79 

77 

74 

70 

70

79 

77 

77 

77 

77

85 

95 

97 

97 

97

102 

114 

114 

124 

129

129 

137 

147 

144 

132

124 

124 

116 

122 

107

Secondfoot-days

1,185 

1,349 

1,786

52,176

1,358 

2,149 

12,514 

3,093 

2,708 

1,253 

890 

920 

885

30,090

May

97 

107 

137 

112 

105

99 

99

97 

97 

97

114 

112 

109 

112 

109

105 

95 

87 

79 

72

66 

65 

60 

58 

58

58 

55 

52 

55 

70 

70

Maximum

41 

68 

92

3,610

63 

208 

1,920 

147 

137 

72 

32 

31 

32

1,920

Peak discharge (base, 2,020 Sec. -ft.).- Mar. 11 (2 a.m.) 3,610 sec

June

72 

62 

55 

SO 

48

48 

47 

46 

43 

42

41 

41 

40 

40 

39

38 

38 

38 

38 

38

38 

38 

36 

36 

35

34 

34 

33 

33 

32

July

Minimum

34 

40 

43

34

46 

40 

63 

70 

52 

32 

28 

29 

28

28

.-ft.

32 

31 

30 

30 

30

30 

30 

29 

29 

28

28 

28 

28 

28 

28

28 

28 

28 

28 

28

28 

28 

328 

328 

328

328 

328 

328 

a 29 

329 

329

Aug.

329 

329 

329

330 

330

330 

330 

330 

830 

30

30 

30

30 

30 

30

30 

SO 

30 

30 

29

29 

29 

29 

30 

29

29 

29 

30 

31 

- 30 

29

Mean

38.2 

45.0 

57.6

143

43.8 

76.8 

404 

103 

87.4 

41.8 

28.7 

29.7 

29.5

82.4

Sept.

29 

29 

28 

28 

28

28 

28 

28 

29 

29

29 

29 

29 

29 

29

39 

30 

30 

30 

30

30 

29 

30 

30 

30

30 

31 

32 

32 

32

Runoff In 

acre-feet

2,350 

2,680 

3,540

103,500

2,690 

4,260 

24,820 

6,130 

5,370 

2,490 

1,770 

1,820 

1,760

59,680

a No gage-height record; discharge Interpolsted.
332 MILL CREEK BASIN

Mill Creek near Los Mollnos, Calif.

Location.- Water-stage recorder, lat. 40°03'20", long. 122°01'15", in Hi see. 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 1949. September 1909 to September 1913

 (fragmentary) at site 0.3 mile downstream.

Average discharge.- 21 years (1928-49), 270 second-feet.

Extremes.- Maximum discharge during year, 3,870 second-feet Mar. 11 (gage height, 7.48

 reet); minimum, 82 second-feet Sept. 22-24.

1928-49: Maximum discharge, 23,000 second-feet Dec. 11, 1937 (gage height, 23.4 

feet, from floodmarks), from rating curve extended above 3,900 second-feet on basis of 

slope-area studies; minimum, 49 second-feet Dec. 13, 1932.

Remarks.- Records good. No storage or large diversion above station.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.3- 73 2.2 302 4.5 1,310 

1.4 90 2.6 445 5.0 1,600 

1.5 108 3.0 605 5.5 1,920 

1.6 129 3.5 825 

1.8 181 4.0- 1,060

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

108 

108 

108 

112 

121

114 

110 

108 

110 

108

112 

114 

112 

116 

121

112 

108 

108 

108 

108

108 

108 

108 

108 

108

106 

104 

106 

114 

116 

114

Nov.

197 

274 

181 

154 

134

127 

125 

118 

118 

118

118 

116 

116 

116 

176

149 

149 

J34 

129 

132

125 

123 

121 

121 

121

121 

118 

116 

116 

116

Dec.

116 

116 

139 

125 

132

136 

142 

154 

136 

132

129 

144 

213 

173 

154

144 

139 

134 

129 

129

129 

123 

121 

112 

123

129 

144 

1-34 

127 

127 

125

Jan.

139 

139

123 

108 

116

127 

129 

121 

112 

101

101 

110 

129 

127 

121

114 

112 

114 

116 

114

116 

125 

114 

112 

104

116 

121 

116 

112 

114 

112

Feb.

112 

112 

116 

118 

123

127 

129 

134 

136 

159

234 

144 

123 

129 

132

123 

129 

134 

136 

159

184 

242 

273 

213 

198

196 

190 

181

Month

Goto 

Hove

Deoe

Ca

janu 

Pebr 

Hare 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

17S 

723 

951 

661 

384

377 

276 

249 

269 

1,240

1,810 

849 

433 

333 

343

437 

392 

370 

772 

509

384 

350 

309 

270 

243

228 

228 

240 

228 

222 

207

Apr.

207 

213 

225 

231 

255

273 

302 

299 

319 

353

406 

449 

449 

441 

445

485 

509 

513 

557 

497

501 

505 

533 

477 

441

414 

414 

388 

377 

339

Secondfoot-days

3,426 

4,079 

4,210

.111,040

3,635 

4,386 

14,465 

11,817 

10,818 

5,751 

3,205 

2,745 

2,538

71,075

Peak discharge (base, 1,480 sec. -ft.).- Mar. 3 (1:20 a

May

326 

374 

388 

346 

339

339 

356 

346 

329 

363

485 

481 

525 

477 

445

437 

426 

339 

302 

289

267 

255 

267 

270 

286

302 

299 

292 

286 

283 

299

Maximum

121 

274 

213

3,650

139 

273 

1,810 

557 

525 

273 

123 

95 

88

1,810

June

273 

246 

231 

228 

237

243 

252 

249 

237 

234

225 

219 

210 

201 

196

187 

178 

170 

168 

162

157 

152 

149 

144 

142

139 

136 

132 

129 

125

July

123

118 

118 

116 

114

112 

112 

110 

108 

108

106 

106 

104 

104 

101

101 

99 

99 

97 

97

97 

97 

97 

97 

97

95 

"95 95 

94 

94 

94

Minimum

104 

116 

112

104

101 

112 

178 

207 

255 

125 

94 

85 

82

82

Aug.

95 

94 

90 

90 

88

88 

90 

90 

90 

90

90 

90 

90 

90 

90

90 

88 

87 

87 

87

85 

85 

85 

85 

85

85 

85 

88 

95 

88 

85

Mearr

111 

136 

136

303

117 

157 

467 

394 

349 

192 

103 

88.5 

84.6

195

.m.) 1,750 sec. -ft.; Mar. 11 (12:

Sept.

83 

83 

83 

83 

83

83 

83 

87 

88 

88

87 

85 

85 

85 

85

85 

85 

83 

83 

83

83 

83 

83 

82 

83

85 

85 

88 

88 

88

Runoff In 

acre-feet

6,800 

8,090 

8,350

220,300

7,210 

8,700 

28,690 

23,440 

21,460 

11,410 

6,360 

5,440 

5,030

141,000

30 a.m.)

3,870 see.-ft
ELDER CREEK BASIN 333

Elder Creek near Paskenta, Calif.

Location.- Water-stage recorder, lat. 40°01'30", long. 122°30'30", in NW£ sec. 14, T. 25 

N. , K. 6 W.., 2.5 miles downstream from South Pork and 11 miles north of Paskenta, Tehama County. Altitude of gage, about 720 feet (from topographic map).

Records available.- December 1948 to September 1949.

Extremes.- Maximum discharge during period, 3,690 second-feet Mar. 11 (gage height, 8.78 

reet j, from rating curve extended above 400 second-feet on basis of logarithmic plotting; minimum, 0.4 second-foot Sept. 2-4, 21-25.

Remarks.- Records good except those above 500 second-feet and those for periods of ice 

errect, which are fair. No large diversion.

Discharge, In second-feet, water year -October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

12 

 10

9.8 

17 

12 

9.8 

9.2

9.2 

b8.5 

bS.O 

b7.5 

b9.0

b!9 

b!30 

59 

60 

50 

39

Jan.

54 

45 

27 

b!7 

b!6

17 

24 

21 

16 

b!6

b!5

14 

12 

blO

9.8

9.5 

10 

 11 

11

10 

10 

blO 

blO 

b9.5

b9.0 

b8. 5 

b8. 2 

8.2 

b8.2 

8.5

Feb.

8.5 

bS.O 

8.5 

9.2 

9.0

11 

20 

20 

*22 

90

132 

47 

30 

24 

21

19 

18 

16 

20 

24

26 

132 

107 

75 

72

83

ee

68

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apri

June 

July 

Augu 

Sept

Th

ber. ............................... .....

mber 14- 

lendar y 

dry

51......---- .......---........-.

sar

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

s period

Peak discharge (base, 1,200 sec. -ft. ).- Ma

3,690 sec. -ft. 5 Mar. 19 (4 p.m.) 1,490 sec.- 

* Winter discharge measurement made on thi 

b Stage-discharge relation affected by ice

Mar.

63 

561 

637 

392 

437

314 

160 

136 

463 

2,000

1,960 

542 

344 

304 

579

563 

510 

566 

658 

431

313 

480 

403 

319 

245

217 

221 

203 

177 

159 

147

Apr.

140 

145 

147 

145 

159

181 

208 

193 

193 

231

276 

265 

223 

208 

210

226 

243 

223 

195 

170

177 

179 

174 

154 

134

123 

116 

116 

113 

103

May

97 

97 

93 

87 

81

77 

77 

78 

77 

81

99 

87 

82 

78 

76

69 

59 

66 

62 

57

53 

48 

44 

40 

38

36 

33 

33 

53 

63 

49

Second- Maximum 

foot -days

479.0 130

-

470.4 54 

1,210.2 132 

14,564 2,000 

5,370 276 

2,070 99 

584.5 43 

153.2 9.0 

50.5 3.0 

21.3 1.0

-

June

43 

37 

33 

30 

28

27 

27 

25 

24 

22

21 

20 

18 

17 

16

15 

15 

15 

16 

16

16 

14 

13 

12 

12

11 

11 

11 

10 

9.5

July

9.0 

8.8 

8.5 

8.8 

8.5

8.2 

7.5 

7.3 

6.5 

6.1

5.5 

5.0 

4.9

4.5 

4.1

3.8 

3.4 

3.4 

3.5 

3.5

3.5 

3.2 

3.2 

3.2 

3.4

3.0 

2.9 

2.7 

2.6 

2.3 

2.4

Minimum

7.5

-

8.2 

8.0 

63 

103 

33 

9.5 

2.3 

.8 

.4

-

Aug.

3.0 

2.7 

2.3 

1.9 

1.7

2.1 

2.1 

1.8 

1.5 

1.7

2.0 

2.0 

2.0 

1.9

1.8

1.8 

1.7 

1.6 

1.4 

1.4

1.3 

1.2 

1.2 

1.3 

1.2

1.1 

1.1 

1.0 

1.0 

.9 

.8

Mean

. 26.6

-

15.2 

43.2 

470 

179 

66.8 

19.5 

4.94 

1.63 

.71

-

p. 2 (11:15 a.m.) 1,220 sec. -ft. j Mar. 11 (12 

rt.j Mar. 22 (4:30 p.m.) 1,940 sec. -ft. 

3 day.

Sept.

MM 0( 

'CD ooto-40> cnifti^oicn coo> CD tooo cocncncncn

Runoff In 

acre -feet

950

-

933 

2,400 

28,890 

10,650 

4,110 

1,160 

304 

100 

42

49,540

:30 p.m.)
334 THOMES CREEK BASIN 

Thomes Creek at Paskenta, Calif.

Location.- Water-stage recorder,^lat. 39*52', long. 122°33', in NW£ sec. 4, T. 23 N., R. 

b w., u.5 mile upstream from Jaskenta and 4.5 miles downstream from Mill Creek.

Drainage area.- 188 square miles.

Records available.- October 1920 to September 1949 at various sites close to Paskenta 

(prior to January 1921, gage heights only).

Average discharge.- 28 years (1921-49), 239 second-feet.

Extremes.- Maximum discharge during year, 1,660 second-feet Mar. 18 (gage height, 5,20 

reet }; minimum, 0.2 second-foot Sept. 24, 25.

1921-49: 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 periods of ice effect and those for July to 

September, which are fair. No storage, or diversion above station.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

6.9 

6.9 

7.8 

10 

28

25 

17 

14 

11 

10

11 

11 

16 

13 

11

11 

10 

9.4 

8.9 

8.9

8.4 

8.4 

8.4 

8.4 

7.8

7.4 

7.4 

7.4 

7.4 

7.4 

7.4

Nov.

29 

252 

149 

130 

85

67 

55 

47 

42 

40

36 

35 

33 

33 

38

82 

130 

98 

80 

82

77 

67 

61 

57 

55

53 

47 

44 

44 

45

Dec.

44 

42 

49 

59 

74

127 

97 

308 

174 

143

127 

243 

365 

213 

153

130 

124 

107 

93 

93

b90 

b85 

b85 

b80 

b90

b!20 

b!75 

96 

90 

b85 

b80

Jan.

bloo 

b90 

bSO 

b75 

b70

b85 

98 

b85 

b70 

b60

b55 

b55 

b5O 

b40 

b35

b35 

b32 

b32 

b35 *b35

b32 

b32 

b32 

b32 

bSO

b30 

b28 

b28 

b26 

b26 

b24

Feb.

b24 

b24 

b26 

b28 

b28

b3O 

b40 

b40 

*45 

67

171 

b95 

b75 

69 

67

64 

69 

85 

107 

130

130 

454 

 644 

370 

320

370 

358 

320

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

3................. ......

ter year 1948-49 .......................

Mar.

280 

433 

514 

383 

423

320 

256 

225 

350 

901

976 

456 

358 

358 

630

865 

926 

1,480 

1,420 

1,080

829 

714 

612 

533 

456

435 

598 

605 

519 

498 

456

Apr.

442 

519 

540 

547 

650

766 

856 

Sll 

874 

1,110

1,340 

1,260 

1,090 

990 

1,030

1,130 

1,170 

1,050 

874 

766

820 

811 

739 

65O 

561

505 

484 

477 

442 

387

Secondfoot-days

332.6 

2,093 

3,841

71,921.7

1,537 

4,250 

18,889 

23,691 

9,423 

2,344 

351.0 

97.6 

29.5

66,878.7

May

370 

411 

393 353" 

331

320 

336 

348 

320 

375

4S4 

449 

449 

429 

370

348 

305 

295 

256 

225

209 

205 

205 

205 

205

205 

197 

181 

230 

225 

189

Maximum

28 

252 

365

3,390

100 

644 

1,480 

1,340 

484 

185 

22 

7.5 

1.5

1,480

June

185 

167 

153 

143 

140

134 

130 

115 

104 

96

87 

82 

74 

69 

64

59 

53 

SI 

51 

51

51 

45 

38 

33 

33

32 

30 

27 

24 

23

July

22 

19 

18 

18 

19

19 

19 

18 

16 

15

12 

12 

11 

10 

9.3

8.6 

8.0 

8.0 

7.5 

7.5

7.5 

7.5 

7.0 

7.0 

6.6

6.6 

6.6 

7.0 

6.1 

8.1 '6.1

Minimum

6.9 

29 

42

2

24 

24 

225 

387 

181 

23 

6.1 

1.0 

.2

.2

Aug.

7.0 

7.5 

7.5 

5.7 

5.3

4.S 

4.4 

3.6 

3.6 

3.3

3.3 

3.0 

3.0 

2.8 

2.8

3.0 

3.0 

2.8 

2.5 

2.0

2.0 

1.5 

1.5 

1.8 

1.8

1.8 

el. 6 

el. 4 

el. 2 

el.l 

el.O

Mean

10.7 

69.8 

124

197

49.6 

152 

609 

790 

304 

78.1 

11.3 

3.15 

.98

183

Sept.

el.O 

el.O 

el.O 

1.0 

' 1.0

1.0 

1.2 

1.0 

.8 

1.2

1.2 

1.5 

1.5 1.5* 

1.5

1.5 

1.2 

1.0 

.7 

.6

.4 

.3 

.3 

.2 

.2

.6 

1.2 

1.2 

1.5 

1.2

Runoff In 

acre-feet

660 

4,150 

7,620

142,600

3,05O 

8,430 

37,470 

46,990 

18,690 

4,650 

696 

194 

59

132,700

arge (base, 1.400 sec.-ft.).- Mar. 11 (12 m.) 1,540 sec.-ft.; Mar. 18 (9 a.m.) 1,660 

[*. 11 (11:45 p.m.] 1,540 sec.-ft.

Peak discharge 

sec.-ft.; Apr.

* Winter discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

e Stage-discharge relation Indefinite; discharge computed on basis or records for Elder Creek 

near Paskenta.
DEER CREEK BASIN 

Deer Creek near Vina, Calif.

335

Location.- Water-stage recorder, lat. 40°01', long. 121°56', In NEi sec. 23, T. 25 N., R. 

1 W., 0.8 mile upstream from concrete diversion dam and 9 miles northeast of Vina. 

Altitude of gage, about 480 feet (from topographic map).

Drainage area.- 200 square miles.

Records available.- October 1911 to December 1915, March 1920 to December 1937, January 

iyaa to September 1949.

Average discharge.- 30 years "(1912-15, 1920-37, 1939-49), 286 second-feet.

Extremes.- Maximum discharge during year, 4,250 second-feet Mar. 11 (gage height, 7.58 

reet); minimum, 69 second-feet Jan. 11..

1911-15, 1920-37, 1939-49: Maximum discharge, 23,800 second-feet Dec. 10, 1937 

(gage height, 19.2 feet, present datum, from floodmarks), from rating curve extended 

above 7,000 second-feet on .basis of velocity-area studies; minimum, 43 second-feet 

Dec. 13, 1932.

Remarks.- Records good. No storage or large diversion above station.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

2.2 70 2.7 162 3.9 606 5.1 1,35O 

2.3 84 3.0 240 4.2 770 5.5 1,66O 

2.4 101 3.3 338 4.5 950 6.0 2, ISO 

2.5 120 3.6 458 4.8 1,140 6.5 2,750

Discharge, in second-feet, water year October 1948 ^to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct,

96 

96 

.98 

101 

105

103 

98 

98 

96 

96

99 

101 

98 

105 

107

99 

94 

94 

94 

94

94 

92 

92 

92 

92

92 

92 

92 

101 

103 

103

Nov.

140 

220 

149 

138 

112

107 

105 

101 

98 

99

99 

99 

99 

101 

147

155 

138 

120 

112 

116

110 

105 

105 

105 

105

103 

101 

99 

101 

101

Dec.

101 

103 

120 

110 

124

118 

118 

134 

122 

120

118 

132 

255 

191

155

140 

134 

126 

120 

120

- 120 

112 

109 

101 

116

124 

151 

126 

118 

118 

116

Jan.

122 

126 

110 

98 

114

120 

110 

109 

105 

105

98 

110 

126

112 

103

101 

101 

101 

103 

103

107 

116 

105 

96 

105

99 

107 

103 

101 

99 

99

Feb.

99

101 

103 

107 

110

110 

118

114 

114 

130

260 

142 

118 

120 

120

114 

122 

136 

142 

174

218 

310 

339 

246 

232

226 

218 

207

Month

Octo 

Hove 

Dece

Ca

Janu. 

Febr 

Marc

Aprl

Mav

June 

July 

Augu 

Sept

Ha

mber . ....................................

lendar year 1948

ter year 1948-49 .......................

Peak discharge (base, 2,200 sec. -ft.).- Ma

Note.- No gage-height record June 3-28; dl 

Los Molinos.

Mar.

202 

891 

1,090 

667 

436

387 

313 

320 

358 

1,500

2,380 

1,250 

685 

509 

458

617 

585 

544 

1,080 

764

580 

514 

441 

387 

334

306. 

302 

320 

296 

289 

267

Apr.

261 

273 

280 

296 

320

345 

379 

364 

383 

419

481 

524 

514 

490 

476

495 

524 

519 

590 

529

481 

467 

472 

432 

395

364 

345 

334 

353 

306

Secondfoot-days

3,017 

3,490 

3,972

112,780

3,314 

4,550 

19,072 

12,411 

6,986 

3,775 

2,642 

2,443 

2,255

67,927

r. 11 (l a.ni 

s charge comp

May

289 

306 

364 

302 

276

258 

252 

252 

246 

252

255 

246 

286 

264 

249

237 

220 

218 

202 

194

186 

176 

169 

162 

158-

153 

149 

147 

158 

181 

179

Maximum

107. 

220 

255

3,810

126 

339 

2,380 

590 

364 

176 

92 

83 

77

2,380

June

176 

153 

145 

140 

145

150 

160 

155 

145 

145

140 

135 

135 

130 

125

125 

120 

115 

115 

110

110 

105 

105 

105 

100

100 

98 

98 

. 96 

94

July

92 

92 

92 

92 

92

92 

92 

91 

91 

89

87 

87 

86 

86 

84

84 

83 

83 

81 

81

81 

81 

81 

81 

81

80 

80 

80 

80 

. 80 

80

Aug.

81 

80 

.77 

77 

77

78 

78 

78 

78 

78

80. 

80 

80 

80 

80

80 

80 

80 

78 

78

78 

78 

78 

78 

78

78 

77 

78 

83 

81 

78

Minimum Mean

92 97.3 

98 116 

101 128

87 308

96 107 

99 162 

202 615 

261 414 

147 225 

94 126 

80 85.2 

77 78.8 

71 75.2

71 186

.) 4,250 860. -ft. 

Uted on basis of records for Mill

Sept.

77 

77 

76 

76 

76

76 

76 

76 

77 

77

77 

76 

76 

76 

74

74 

74 

74 

73 

73

71 

73 

73 

73 

73

74 

76 

77 

77 

77

Runoff in 

aore-feet

5,980 

6,920 

7,880

223,700

6,570 

9,020 

37,830 

24,620 

13,860 

7,490 

5,240 

4,850 

4,470

134,700

Creek near
CREEK BASIN 

Chico Creek near Chico, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°46i, 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 1949.

Average discharge.- 19 years, 130 second-feet.

Extremes.- Maximum discharge during year, 2,090 second-feet Mar. 11 (gage height, 9.31 

reetj; minimum, 12 second-feet Jan. 24.

1930-49: 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 excellent. No storage or large diversion above station.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In seoond-feet)

Oct. 1 to Mar. 10

2.6 17 3.2 107 5.0 550 

2.7 28 3.4 151 6.0 850 

2.8 40 3.6 200 8.0 1,550 

2.9 54 4.0 300 

3.0 70 4.5 425

Mar. 11 to Sept. 30

2.5 15 3.1 94 

2.6 22 3.3 133 

2.7 33 3.6 200 

2.9 60

Note.- Same as preoedIng table above 3.6 feet. 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

22 

22 

24 

25 

24

24 

22 

24 

22 

24

26 

27 

26 

28 

28

26 

24 

24 

24 

24

25 

24 

24 

24 

24

24 

24 

22 

26 

28 

27

Nov.

41 

70 

41 

40 

29

28 

28 

27 

26 

26

26 

25 

25 

25 

43

40 

38 

33 

32 

32

29 

28 

28 

28 

28

28 

27 

27 

27 

27

Dec.

27 

28 

40 

34 

47

47 

47 

62 

51 

46

41 

73 

158 

99 

74

60 

54 

48 

46 

44

43

41 

39

35 

40

40 

79 

56 

48 

47 

47

Jan.

54 

70 

56 

48 

47

46 

44 

41 

40 

29

35 

38 

39 

38 

34

33 

33 

33 

34 

34

35 

47 

34 

29

30

34 

34 

33 

32 

32 

32

Feb.

32 

34 

36 

38 

41

47 

48 

44 

43 

48

113 

74 

56 

54 

50

47 

48 

54 

62 

81

111 

176 

26S 

190 

17S

163 

151 

137

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

Lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

122 

498 

753 

429 

320

270 

232 

208 

235 

792

1,550 

893 

560 

410 

350

435 

462 

425 

610 

588

440 

380 

332 

290 

248

215 

198 

193 

176 

161 

148

Apr.

141 

135 

133 

131 

133

135 

144 

144 

137 

137

141 

144 

135 

131 

123

117 

113

109 

105 

98

94

89 

83 

80 

71

66 

62 

59 

60 

53

Secondfoot-days

762 

952 

1,641

45,015

1,198 

2,419 

12,923 

3,303 

1,333 

841 

677 

606 

604

27,259

Peak discharge (base, 900 sec. -ft.).- Mar. 3 (1:30 a.ra

May

49 

49 

53 

46 

42

38 

42 

40 

45 

45

52 

52 

49 

47 

46

46 

43

46 

45 

43

41 

40 

38 

37 

36

32 

29 

33 

40 

47 

42

Maximum

28 

70 

158

2,350

70 

266 

1,550 

144 

53 

42 

24 

21 

21

1,550

June

42 

37 

34 

33 

32

31 

31 

30 

29 

28

28 

28 

26 

26 

28

28 

26 

26 

26 

28

28 

25 

24 

26 

22

22 

23 

24 

25 

25

July

24 

24 

24 

24 

23

23 

23 

22 

22 

22

22 

22 

22 

22

22

21 

21 

21 

21 

21

21 

21 

21 

21 

21

21 

21 

21 

21 

21 

21

Aug.

21 

21 

20 

20 

19

19 

19 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

19 

19 

19

18 

18 

19 

19 

19

19 

19 

20 

20 

20 

19

Minimum Mean

22 24.6 

25 31.7 

27 52.9

21 123

29 38.6 

32 86.4 

122 417 

53 110 

29 43.0 

22 28.0 

21 21.8 

18 19.5 

19 20.1

18 74.7

.) 1,140 sec. -ft.; Mar. 11 (1 a.m

Sept.

19 

19 

19 

19 

19

19 

19 

20 

21 

21

21 

21 

21 

21 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

21 

21 

21 

21 

21

Runoff In 

acre-feet

1,510 

1,890 

3,250

89,290

2,380 

4,800 

25,630 

6,550 

2,640 

1,670 

1,340 

1,200 

1,200

54,060

.) 2,090
STONY CREEK BASIN 337

Stony Creek near Hamilton City, Calif.

Location.- Water-stage recorder, lat. 39°43'20", long. 122°03'10", in Capay Grant, 2.5 

miles southwest of Hamilton City, 8 miles east of Orland, Glenn County, and 5 miles upstream from mouth. Altitude of gage, about 150 feet (from topographic map).

Drainage area.- 764 square miles.

Records available.- February 1946 to September 1949; January 1941 to January 1946 at site 

a miles upstream; records comparable except for extremely low flows.

Extremes.- Maximum discharge during year, 11,000 second-feet Mar. 11 (gage height, 13.59 

 feet); from rating curve extended above 3,600 second-feet by logarithmic plotting; no

flow for several months.

1941-49: Maximum discharge, 37,500 second-feet Mar. 1, 1941 (gage height, 6.35 fe6't,

site and datum then in use), from rating curve extended above 30,000 second-feet; no

flow part of each year.

Remarks.- Records good except those for Feb. 26 to Mar. 10 and May 19-26, which are fair. 

Flow regulated by East Park Reservoir beginning in 1910 (usable capacity, 50,620 acrefeet), Stony Gorge Reservoir beginning in 1928 (usable capacity, 50,100 acre-feet). 

Many diversions above station for irrigation of Orland project, Bureau of Reclamation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

3O 

31

Oct. Nov. Dec. Jan. Feb.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0

0 

0

0 

0 

0 

92 

123

'l33 

141 

144

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

........ ...........

uary * .

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

ter year 1948-49 .......................

Mar.

142 

146 

669 

1,030 

1,000

1,120 

623 

518 

428 

5,000

6,840 

4,960 

1,560 

1,170 

1,470

2,310 

2,460 

2,790 

3,120 

3,290

2,760 

2,330 

1,880 

2,180 

1,010

716 

669 

716 

830 

652 

553

Apr..

508 

483 

493 

508 

458

463 

584 

776 

770 

686

776 

842 

824 

752 

698

.686 

728 

764 

770 

704

601 

548 

508 

428 

368

268 

210 

201 

201 

159

Secondfoot-days

0 

0 

0

22,915.1

0 

633 

54,942 

16,765 

2,407 

333.6 

0 

0 

0

75,080.6

May

139 

151 

164 

172 

159

124 

99 

73 

60 

57

41 

36 

43

50 

57

83 

93

76 

a 90 

a75

a65 

360 

a50 

a45 

a 40

a35 

39 

45 

63 

68 

55

Maximum

0 

0 

0

1,680

0 

144 

6,840 

842 

172 

52 

0 

0 

0

6,840

June

45 

52 

39 

30 

22

17 

13 

17 

26 

28

21 

17 

6.6

0 

0

0 

0 

0 

0

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

July

Minimum

0 

0 

0

0

0 

0 

142 

159 

35 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

62.6

0 

22.6 

1,772 

559 

77.6 

11.1 

0 

0 

0

206

Sept.

ac^e-Le?

0 

0 

0

45,450

O 

1,260 

109,000 

33,250 

4,770 

662 

0 

0 

0

148,900

Peak discharge (base. 2.000 see.-ft.).- Mar. 11 (11:30 p.m.) 11,000 sec.-ft.; Mar. 20 (1:30 a.m.) 

3,830 sec.-ft.j Mar. 24 (11 a.m.) 2,540 sec.-ft.

a No gage-height record; discharge computed on basis of recorded rsnge In stage and records for 

Thomes Creek near Psskenta and Elder Creek near Paskents.
338 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.

y El, 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.

Kecords available.- November 1930 to September 1949. 

Average discharger- 18 years (1931-49), 377 second-feet. 

.Extremes.- Maximum discharge during year, 2,800 second-feet Mar. 11 (gage height, 5.29

reet); minimum, 36 second-feet Feb. 3.

1930-49: 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. 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 1948-49.

Month

January. ............. .^ ....

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

Water year. ......... .....

Mean discharge 

(second-feet)

0

28.9

37.7

Runoff 

(acre-feet)

0

1,720

27,260

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

102 

108 

102 

122 

116

119 

110 

108 

102 

102

113 

113 

105 

113 

122

116 

108 

116 

116 

113

108

100 

108 

100 

108

108 

108 

108 

122 

122 

119

Nov.

214 

287 

220 

.181 

146

136 

146 

139 

130 

124

116 

133 

119 

102 

192

188 

168 

158 

152 

139

136 

124 

127 

136 

124

130 

127 

124 

124 

127

Dec.

122 

124 

146 

149 

188

169 

188 

178 

155 

161

146 

262 

435 

287 

220

202 

188 

175 

146 

168

146 

164 

149 

116 

168

181 

239 

181 

142 

130 

116

Jan.

142 

164 

130 

124 

119

127 

108 

113 

119 

82

75 

94 

116 

127 

110

100 

100 

102 

92 

92

113 

127 

100 

100 

94

124 

122 

113 

108 

108 

82

Feb.

58 

94 

108 

124 

130

130 

152 

136 

136 

142

274 

164 

133 

133 

139

124 

130 

133 

139

161

202 

249 

419 

312 

299

287 

278 

258

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

Mflv

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 ...............

Mar.

243 

613 

976 

617 

520

468 

424 

403 

419 

1,080

2,120 

1,350 

860 

641 

582

718 

790 

776 

1,000 

940

776 

732 

662 

602 

539

479 

451 

503 

485 

419 

408

Apr.

413 

398 

440 

451 

474

491 

497 

508 

520

557

582 

608 

602 

595 

608

622 

641 

615 

641 

622

615 

615 

622 

608 

557

532 

508 

497 

485 

451

Secondfoot -days

3,437 

4,469 

5,541

136,748

3,427 

5,044 

21,596 

16,375 

10,838 

5,228 

3,475 

3,392 

2,583

85,405

Peak discharge (base, 1,100 sec. -ft.).- Mar. 3 (3 a.m.

May

435 

462 

468 

430 

408

413 

403 

388 

393 

378

393 

393 

408 

403 

383

349 

349 

358 

326 

308

295 

278 

274 

270 

266

266 

254 

247 

254 

312 

274

Maximum

122 

287 

435

2,760

164 

419 

2,120 

641 

468 

283 

136 

127 

105

2,120

June

283 

224 

227 

213 

231

202 

213 

192 

188 

192

188 

181 

175 

161 

142

158 

155 

155 

175 

168

155 

133 

130 

155 

155

142

136 

127 

136 

136

Minimum

July

136 

130 

108 

116 

133

136 

116 

113 

116 

87

116 

108 

108 

108 

102

100 

80 

108 

97 

90

116 

130 

119 

133 

130

97 

130 

90 

87 

116 

lid

100 

102 

116

100

75 

58 

243 

398 

247 

127 

80 

82 

60

58

) 1,290 sec. -ft.; Mar.

Aug.

122 

.119 

124 

127 

116

119 

116 

116 

110 

108

122 

122 

116 

127 

108

97 

116 

102 

110 

82

108 

102 

102 

102 

92

97 

92 

110 

113 

105 

90

Mean

111 

149 

179

374

111 

180 

697 

546 

350 

174 

112 

109 

86.1

234

Sept.

87 

102 

92 

90 

92

97 

87 

105 

80

ae

60 

80 

77 

92 

84

90 

82 

84 

90 

75

87 

92 

66 

84 

80

90 

92 

87 

97 

100

Runoff In 

acr«-f««t

6,820 

8,860 

10,990

271,200

6,800 

10,000 

42,840 

32,480 

21,500 

10,370 

6,890 

6,730 

5,120

169,400

11 (2 a.m.) 2,800 sec

ft.; Mar. 19 (11:30 a.m.) 1,180 sec.-ft.
FEATHER RIVER BASIN 339

Lake A1manor near Prattville, Calif.

Location.- Staff gage, lat. 40°10'30", long. 121°05'25", in NWir sec. 28, T. 27 N., R. 

d K., 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 level.

Drainage area.- 506 square miles.

Kecoras available.- October 1913 to September 1949 (yearly summaries only prior to 

October laau.See Water-Supply Paper 881).

Extremes.- Maximum contents observed during year, 589,500 acre-feet June 9 (elevation, 

4,471.19 feet); minimum observed, 404,600 acre-feet Sept. 30 (elevation, 4,461.63 

feet).

1913-49: Maximum contents, 798,900 acre-feet June 9; il?28 (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 Fork Feather River (see following page). Records, 

including extremes, show contents at 12 p.m. interpolated from readings made at 5 p.n 

all of which is available for diversion to Butt Valley Reservoir except 15,700 acrefeet (below elevation 4,429 feet) that can only be released down river.

Cooperation.- Records of contents, furnished by Pacific Qas & Electric Co., obtained in 

connection with' a Federal Power Commission project.

Contents, in thousands of acre-feet, water year October 194S to September 1949

Day

1

2

3

4

5

6

1

8

9

10

M

12

13

14

15

16

IT

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

567.1

564.8

562.5

560.5

558.0

555.4

552.9

550.5

547.8

545.2

542.8

540.2

537.3

535.1

532.9

530.3

527.7

525.7

523.7

521.6

519.0

516.6

514.2

512.1

510.1

507.8

505.4

503.3

501.1

499.0

496.8

Nor.

497.2

498.0

498.0

496.8

495.9

494.9

493.9

492.8

491.6

490.5

489.5

488.2

487.0

486.2

486.6

486.4

485.8

484.5

484.1

483.2

482.6

481.8

480.9

480.1

479.3

478.2

477.3

476.3

476.1

476.1

-

Dec.

4?6'.l

477.6

479.5

480.7

482.6

483.7

484.7

485.3

483.0

481.8

480.5

479.3

478.4

477.8

478.6

480.5

482.2

483.4

484. S

485.3

486.4

488.0

488.7

488.5

488.0

487.4

487.0

486.6

486.8

487.4

488.2

Jan.

490.3

491.6

492.8

493.6

494.1

494.5

494.5

493.9

493.0

491.6

489.5

487.6

485.8

484.3

483.4

482.8

482.0

481.1

480.9

481.6

482.8

483.9

484.9

485.7

485.7

484.5

485.4

481.8

480.5

479.3

478.0

Feb.

476.1

474.2

473.1

472.1

471.4

470.6

469.5

467.8

465.5

464.0

464.2

467.0

468.3

466.5

468.7

467.8

466.5

465.3

464.6

463.6

463.3

464.2

466.3

468.2

469.9

471.6

472.7

473.6

_

_

-

liar.

474.6

475.7

477.4

479.7

481.6

483.0

484.5

485.8

487.2

488.5

490.1

490.8

491.0

491.0

490.7

490.3

490.1

489.7

489.5

489.1

488.9

488.5

488.3

488.2

488.0

487.8

487.8

487.6

487.4

486.8

486.0

Apr.

485.5

484.9

484.3

484.3

485.5

487.4

489.5

491.4

492.8

494.5

496.5

498.6

500.5

501.7

503.3

505.0

507.4

509.7

512.1

514.4

516.8

519.6

522.0

524.7

528.3

530.9

532.3

532.3

532.9

534.7

-

May

534.7

536.1

536.9

537.1

536.9

537.3

537.3

537.7

539.0

539.6

540.6

541.8

543.8

546.8

550.1

552.7

555.2

556.8.

559.1

561.1

563.0

564.4

566.2

568.1

569.5

571.2

572.8

574.1

575.7

577.6

579.1

June

580.5

581.8

583.2

584.3

585.5

586.8

588.0

589.1

589.5

588.9

588.2

587.4

586.6

585.5

584.5

583.6

582.0

580.5

579.7

578.7

577.6

576.6

575.7

574.5

573.7

572.4

571.2

569.8

568.3

566.5

-

July

564.6

563.0

560.9

559.1

557.0

554.8

553.1

551.3

549.5

547.2

544.8

543.0

541.2

538.8

536.7

534.7

532.1

529.5

527.1

525.5

523.7

521.0

518.4

516.0

514.0

512.1

510.7

508.5

506.4

504.2

502.1

Aug.

499.2

497.4

495.3

492.4

489.3

486.4

484.5

482.6

480.5

478.2

475.7

473.3

471. 0

469.1

467.0

464.8

462.7

460.3

458.2

456.3

454.5

452.4

450.2

448.4

446.9

445.4

443.7

442.4

441.0

439.7

438.4

Sept.

436.6

434.7

432.5

430.5

429,4

428.4

427.4

426.2

425.3

424.4

423.4

422.7

421.6

420.4

419.3

418.2

417.3

416.0

414.8

414.1

413.3

412.1

411.0

4O9.8

408.9

407.8

407.1

406.4

405.3

404.6

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31.. ...................

Feb. 28.....................

Sept. 30.. ...................

Elevation 

(feet)t

4,466.15

-

4,461.63

Contents 

(acre-feet)

488,200

-

404,600

- i

Change in contents 

during month 

(acre-feet)

+12,100

+115,300

-33,800

t Elevation at 12 p.m. interpolated from 5 p.m. readings.
340 FEATHER RIVER BASIN

North Fork Feather River near Prattville, Calif.

Location.- Water-stage recorder and compound rectangular concrete weir, lat. 40°10', long. 

isfi"'U6', 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.

Kecoras available.- March 1914 to September 1949 (tables of daily discharge for July 1921 

to'SeptemDer 1936 include water diverted through Almanor-Butt Creek tunnel-). June 1905 

to March 1914 at site near that of Almanor Dam.

Average discharge.- 43 years (1905-10, 1911-49), 875 second-feet, including diversion 

through Aimanor-Butt Creek tunnel.

Extremes.- Maximum discharge during year, 922 second-feet Feb. 6, 7 (gage height, 4.64 

reet); minimum, 0.2 second-foot Apr. 27, 28. 'Extremes do not include diversions 

through Almanor-Butt Creek.tunnel.

1905-49: 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 except those for periods of no gage-height record, which are 

rair. Flow regulated by Lake Almanor (see preceding page). Figures of monthly discharge show total runoff also. Water is diverted for power from Lake Almanor through 

Almanor-Butt Creek tunnel to Butt Cj>eek.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., 

ootained in connection with a Federal Power Commission project.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.2

1.3

1.4

1.5

1.6

.8 

5.0 

9.4 

15

1.7

1.8

1.9

2.0

2.1

22 

30 

39 

5O 

62

2.2

2.3

2.4 

2.6 

2.8

76

91

107

144

186

3.O 

3.3 

3.6 

4.0 

4.6

236 

326 

434 

60O 

900

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

569

569

569

726

841

841

a84O

3840

a8 40

836

836

830

830

825

825

825

734

560

578

719

719

714

719

719

714

714

714

709

709

704

704

Nov.

8300

a!8

alS

a!8

alO

alS

18

18

237

202

121

182

19

151

150

18

18

18

17

17

18

18

18

18

18

16

15

15

15

15

-

Dec.

15

15

15

15

815

alS

a!5

alS

815

a!5

alS1

815

al5

alS

815

alS

815

a!5

815

a!5

815

a!5

al5

alS

alS

alS

a!5

a!5

alS

a!5

a!5

Month

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

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

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

Calendar year 1948 . .

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

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

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

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

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

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

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

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

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

Water year 1948-49 . .

Jan.

a

a

a

a

a

a

a!5

a!5

alS

a!5

a!5

a!5

815

a!5

815

150

550

460

350

140

alS

a!5

a!5

a!5

180

a290

a

a!5

a!5

a!5

160

a240

8200

a

a

a

a

Seoondfoot-days

22,872

1,742

465

42,361.2

4,275

6 1 672. 4

167 . 9

103.4

227.1

877

13,870

14,222

2,286.4

67.T80.2

270

390

a!5

140

500

Feb.

a620

a500

8350

a!80

alS

a 4 00

8870

3750

a680

8220

a!5

a!5

a230

8550

543

498

159

8.5

8.1

7.6

7.2

7.2

6.8

6.8

6.3

6.3

6.3

6.3

-

_

-

Mar.

6

6

6

6

6

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

4

4

4

4

5

5

5

.3

.3

.3

.3

.3

.9

.9

.9

.9

.9

.9

.9

.9

.4

.4

.0

.0

.0

.0

.0

.0

.0

.0

.0

.6

.6

.6,

.6

.0

.0

.0

Apr.

5.0

5.0

5.0

5.O

5.4

5.9

5.9

5.9

6.3

6.3

5.9

5.4

4.2

4.2

3.7

3.3

2.9

2.5

2.1

2.1

2.1

1.6

1.2

1.2

1.2

1.2

.8

.5

.8

.8

-

May

0.8

2.1

2.5

2.5

3.3

3.3

3.3

3.7

4.6

4.6

5.0

5.0

5.9

8.1

9.0

10

10

11

11

10

9.4

10

10

10

10

10

10

10

10

11

11

Observed

Maximum Minimum

841 560

300 15

15 15

1,020 3.7

550 15

870 6.3

6.3 4.6

6.3 .5

11 . 8

279 10

591 276

614 205

510 7.0

870 .5

 Runoff in Mean acre-feet

738 45,370

58.1 3,460

15.0 922

116 84,010

138 8,480

238 13,230

5.42 333

3.46 205

7.33 450

29.2 1,740

447 27,510

459 28,210

76.2 4,540

186 , 134,400

June

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

79

233

279

-

July

279

333

8400

a 400

a390

a380

a 380

a390

 8450

a460

8430

3470

482

466

470

510

548

518

430

323

276

482

569

531

462

406

486

454

450

574

591

Diversion

in 

aore-feett

57,390

53,910

25,690

411,020

35,520

31,990

39,720

15,180

23,990

39,850

57,040

56,160

53,280

489,700

Aug.

539

502

510

587

614

596

596

582

539

506

531

548

552

548

548

522

462

415

426

442

438

419

374

326

250

302

419

322

205

267

335

Sept.

510

482

486

288

168

164

10

7.2

a7.0

a7.o

a7.0

a7.0

a7.C>

37.0

37.0

a7.0

a7.5

8.1

8.1

8.1

8.5

8.5

8.5

8.5

8.5

.8.5

<3.1

8.1

8.1

8.1

-

Adjusted for

diversion

Mean

1,671

964

433

682

716

814

651

258

397

699

1,375

1,372

971

862

Runoff in 

acre-feet

102,800

57,370

26,610

495,000

44,000

45,220

40,05O

15,380

24,440

41,590

84,550

84,370

57,820

624,100

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.

a No gage-height record] discharge computed on basis of recorded range in stage and records of 

release from Lake Almanor.
FEATHER RIVER BASIN 341

North Fork Feather River at Big Bar, Calif.

Location.- Water-stage recorder, lat. 33°48', long. 121°27', in NEfc aec. 6, T. 22 N., R. .5 

 KV, 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.- Qotober 1939 to September 1949. February 1911 to August 1930 and

October J.yai to September 1937 at site 0.8 mile upstream. 

Average discharge.- 33 years (1911-18, 1913-20, 1931-30, 1931-37, 1939-49), 2,661 second- reet. 

Extremes.- Maximum discharge during year, 6,560 second-feet Apr. 32 (gage height, 8.77

reet ); minimum, 444 second-feet Sept. 26.

1911-37, 1939-49: 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, 335 second-feet Oct. 31, 1933. 

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

FICW regulated by Lake Almanor (see p. 339), Bucks Creek Reservoir (see p. 348), 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 1948-49 (gage height, In feet, 

and discharge, In second-feet)

1.7 558 3.5 1,360 6.O 3,160 

2.1 695 4.0 1,650 6.5 3,660 

2.4 315 4.5 1,970 7.O 4,210 

2.7 945 5.0 2,320 7.5 4,8OO 

3.0 1,090 5.5 2,720 8.3 5,870

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

IS

16iy16a!

20

21 

22 

23 

2* 

25

2$ 

27 

28 

29 

30 

31

Oct.

1,890 

1,900 

1,810 

1,970 

2,190

2,190 

2,200 

2,210 

2,160 

2,110

2,230 

2,160 

2,190 

2,260 

2,190

2,240 

2,120 

2,010 

1,960 

2,130

2,120 

2,190 

2,800 

1,960 

2,120

2,170 

2,160 

2,150 

2,220 

2,190 

1,890

Nov.

82,100 

aE, 400 

2,010 

1,720 

1,560

1,250 

1,130 

1,570 

1,640 

1,930

1,510 

1,800 

1,290 

1,100 

* 1,910

1,860 

1,760 

1,690 

1,670 

1,230

1,100 

1,560 

1,540 

1,560 

1,150

1,380 

1,080 

653 

1,250 

1,570

Dec.

1,390 

1,420 

1,600 

1,350 

1,580

1,610 

1,550 

1,570 

1,400 

1,330

850 

1,020 

1,820 

1,450 

1,430

1,680 

1,630 

771 

664 

1,190

962 

1,030 

981 

767 

587

590 

80S' 864 

830 

827 

924

Jan.

695 

653 

986 

1,160 

1,210

1,330 

1,080 

1,110 

765 

1,360

1,980 

2,170 

1,970 

1,960 

1,5SO

944 

1,440 

1,280 

1,560 

1,960

1,670 

1,350 

736 

1,470 

1,880

1,830 

1,850 

1,980 

1,420 

822 

1,750

Feb.

2,220 

2,210 

2.08O 

2,040 

1,660

1,330 

2,210 

2,080 

2,070 

1,920

1,550 

1,280 

893 

1,750 

1,890

1,830 

1,670 

1,360 

1,360 

1,050

1,430 

1,680 

2,000 

1,980 

2,060

2,070 

1,900 

2,170

Month

\

Oe^o 

NoVe 

Deoe

(Sa

Jaiiui 

Pebr 

Marc 

Ap*l

June Jufy

Augu 

Sept

Wa

lendar year 1948 

ary

8t......................................

ter year 1948-49 .......................

Mar.

2,12O 

2,600 

2.8OO 

2,460 

2,610

2,300 

2,290 

2,220 

2,200 

2,760

3,790 

3,610 

3,120 

2,910 

2,940

3,540 

4,100 

4,210 

4,680 

4,310

4,000 

3,840 

3,520 

3,200 

2,940

2,810 

2,660 

3,020 

2,980 

2,920 

2,780

Apr.

2,

2, 

2, 

2, 

3,

3, 

3, 

3,

4, 

4,

4, 

S, 

5, 

5, 

5,

5, 

S,

s, 

s, 

s,

5, 

5, 

5, 

4, 

4,

4, 

4, 

4, 

3, 

3,

Secondfoot -days

65,490 

45,973 

36,472

930,120

43,951 

49,743 

96,240 

133,550 

84,470 

47,900 

58,060 

56,350 

30,996

749,195

710 

760 

660 

940 

280

040 

350 

850 

130 

170

740 

220 

310 

260 

320

360 

090 

450 

870 

810

600 

860 

580 

960 

810

660 

330 

000 

940 

490

May

3,260 

3,590 

3,500 

3,340 

3,360

3,150 

3,220 

2,820 

2,750 

3,260

3,700 

3,700 

3,500 

3,020 

2,760

3,190 

3,160 

2,970 

2,450 

2,240

2,160 

2,050 

2,280 

2,360 

2,350

2,320 

1,910 

1,550 

1,570 

1,510 

1,470

Maximum

2,260 

2,400 

1,820

13,800

2,170 

2,220 

4,680 

5,870 

3,700 

1,890 

2,000 

1,960 

1,610

5,870

June

1,510 

1,470 

1,360 

1,140 

1,150

1,470 

1,450 

1,510 

1,650 

1,790

1,570 

1,380 

1,610 

1,660 

1,640

1,600 

1,570 

1,630 

1,540 

1,640

1,720 

1,740 

1,750 

1,740 

1,710

1,770 

1,780 

1,690 

1,770 

1,890

July

1,790 

1,820 

1,840 

1,850 

1,850

1,830 

1,820 

1,830 

1,830 

1,900

1,810 

1,830 

1,890 

, 1,830 

1,830

1,860 

1,970 

1,930 

1,900 

1,890

1,810 

1,840 

1,910 

1,890 

1,870

1,880 

1,940 

1,930 

1,890 

2,000 

2,000

Minimum

1,810 

653 

587

587

653 

893 

2,120 

2,660 

1,470 

1,140 

1,790 

1,61<L 66"

587

Aug.

1,920 

1,910 

1,910 

1,960 

1,950

1,940 

1,940 

1,940 

1,890 

1,820

1,810 

1,870 

1,870 

1,840 

1,850

1,860 

1,860 

1,800 

1,820 

1,780

1,750 

1,830 

1,780 

1,720 

1,720

1,660 

1,740 

1,740 

1,640 

1,620 

1,610

Mean

2,113 

1,532 

1,177

2,541

1,418 

1,777 

3,105 

4,452 

2,725 

1,597 

1,873 

1,818 

1,033

2,053

Sept.

1,550 

1,610 

1,500 

1,450 

1,380

1,320 

1,080 

1,250 

1,100 

1,000

968 

972 

976 

823 

823

864 

851 

667 

8il 

922

847 

1,010 

908 

856 

847

791 

986 

896 

954 

984

Runoff In 

acre-feet

129,900 

91,190 

72,340

1,845,000

87,180 

98,660 

190,900 

264,900 

167,500 

95,010 

115,200 

111,800 

61,480

1,486,000

8 No gage-height record; discharge computed on basis of unpublished records at Big Bend powerhouse, 

947809 O - 51 - 23
342 FEATHER RIVER BASIN

Feather River near Oroville, Calif.

Location.-- Water-stage recorder, lat, 39°32', long. 121 0 29', in NE£ sec. 2, T. 19 N., R. 

4 E., 75 feet upstream from bridge on Feather River Highway, 2 miles downstream from 

confluence of North and Middle Forks, and 3 miles northeast of Oroville. 'Datum of gage 

is 182.02 feet above mean sea. level, datum of 1929.

Drainage area.- 3,611 square miles.

Records available.- October 1934 to September 1949. January 1902 to September 1934 at site 

at Oroville, 5 miles downstream.

Average discharge.- 47 years, 5,737 second-feet, 

'extremes.- Maximum discharge during year, 16,800 second-feet Mar. 11 (gage height, 25.25

~reet); minimum, 476 second-feet Jan. 30 (gage height, 3.58 feet).

1902-34 at Oroville: Maximum discharge observed, 230,000 second-feet Mar. 19, 1907 

(gage height, 28.2 feet, reading on U. S. Weather Bureau staff gage at bridge, equivalent to-39.3 feet at staff gage at cable 1,000 feet upstream; probably had been higher 

during night); minimum, 300-second-feet (estimated) Nov. 9, 1931 (gage height, -177 

feet).

1934-49 near Oroville: Maximum discharge, 185,000 second-feet Dec. 11, 1937 (gage 

height, 73.6 feet, from floodmarks), from rating curve extended above 62.00X) second-f 

feet on basis of velocity-area studies and verified by slope-area computation! minimum, 

462 second-feet Dec. 10, 1934 (gage height, 3.55 feet).

Remarks.- Records excellent. Flow partly regulated by power plants and Lake Almanor (see 

p. 339). Bucks (see p. 348), Butt Valley, and smaller reservoirs.

Revisions (water years).- W 881: 1913-28 (published in summary only).

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, in second-feet)

5.2 

5.5

830

970

1,080

1,200

6.2 

6.5 

6.8 

7.1

1,380

1,520

1,650

1,790

3.0

9.0

11.0

13.0

2,250

2,820

4,060

5,370

16.0

18.0

20.0

22.0

7,620

9,300

11,200

13,200

Discharge, in second-feet, water year October 194S to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2,090 

2,050 

1,970 

2,060 

2,340

2,360 

2,380 

2,360 

2,350 

2,260

2,350 

2,380 

2,380 

2,400 

2,420

2,330 

2,320 

2,100 

2,210 

2,220

2,260 

2,320 

2,330 

2,060 

2,260

2,320. 

2,300 

2,290 

2,340 

2,440 

2,230

Nov.

2,940 

4,410 

3,310 

2,760 

2,070

1,730 

1,400 

1,880 

1,840 

2,160

1,780 

1,980 

1,580 

1,320 

2,300

2,3OO 

2,350 

2,100 

2,000 

1,690

1,300 

1,880 

1,860 

1,900 

1,470

1,700 

1,400 

950 

1,560 

1,850

Dec.

1,700 

1,660 

2,040 

1,840 

2,060

2,300 

2,180 

2,340 

1,880 

1,800

1,400 

1,660 

4,840 

3,120 

2,420

2,420 

2,500 

1,420 

1,320 

1,760

1,570 

1,500 

1,460 

1,100 

1,140

1,220 

1,900 

1,580 

1,420 

1,440 

1,430

Jan.

1,460 

1,570 

1,490 

1,560 

1,690

1,900 

1,770 

1,560 

1,420 

1,420

2,300 

2,520 

2,630 

2,460 

2,080

1,550 

1,760 

1,720 

2,030 

2,350

2,240 

2,040 

1,060 

1,970 

2,220

2,280 

2,370 

2,440 

2,090 

1,040 

2,230

Feb.

2,560 

2,730 

2,620 

2,530 

2,370

1,930 

2,660 

2,820 

2,610 

2,720

3,540 

2,170 

1,670 

2,240 

2,530

2,430 

2,260 

2,000 

2,050 

2,060

2,600 

3,080 

4,160 

3,950 

3,810

3,720 

3,540 

3,600

Month

Octo 

Nove 

Deee

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 ......... ... .........

St......................................

tet" year 1948-49 .......................

Mar. .

3,490 

5,150 

8,310 

6,700 

5,620

5,090 

4,450 

4,260 

4,060 

6,710

12,900 

12,000 

7,300 

5,930 

5,620

6,740 

7,700 

8,020 

9,570 

9,660

8,620 

8,500 

7,940 

7,260 

6,350

5,790 

5,720 

5,960 

5,860 

5,620 

5,300

Apr.

5,160 

5,160 

5,200 

5,440 

6,070

6,280 

6,780 

7,140 

7,780 

8,420

9,570 

10,500 

10,700 

10,800 

11,400

11,400 

12,000 

11,800 

12,800 

12,300

12,000 

12,400 

12,600 

11,800 

11,100

10,400 

10,000 

9,160 

8,900 

7,980

Seeondfoot-days

70,480 

59,770 

58,420

1,714,640

59,220 

76,960 

212,200 

283,040 

202,310 

75,060 

65,090 

60,270 

35,074

1,257,894

May

7,660 

8,100 

8,380 

7,780 

7,660

7,500 

7,540 

7,340 

6,660 

6,740

8,380 

8,580 

8,420 

8,580 

7,780

7,900 

7,780 

6,820 

6,100 

5,620

5,070 

4,870 

5,130 

5,230 

5,300

5,230 

4,810 

4,090 

3,830 

3,860 

3,570

Maximum

2,440 

4,410 

4,840

31,100

2,630 

4,160 

12,900 

12,800 

8,580 

3,510 

2,180 

2,100 

1,740

12,900

June

3,510 

3,300 

2,970 

2,640 

2,610

2,970 

2,790 

2,940 

2,820 

3,000

2,550 

2,300 

2,470 

2,500 

2,420

2,330 

2,300 

2,280 

2,220 

2,250

2,350 

2,280 

2,250 

2,200 

2,120

2,100 

2,140 

2,100 

2,130 

2,220

July

2,180 

2,120 

2,100 

2,160 

2,140

2,120 

2,110 

2,100 

2,120 

2,120

2,090 

2,080 

2,080 

2,100 

2,080

2,090 

2,080 

2,100 

2,090 

2,090

2,090 

2,070 

2,080 

2,080 

2,060

2,080 

2,070 

2,080 

2,100 

2,100 

2,130

Minimum 

1,970 

950 

1,100

950

1,040 

1,670 

I 3,490 

5,160 

3,570 

2,100 

2,060 

1,770 

858

S58

Aug.

2,100 

2,100 

2,080 

2,080 

2,040

2,060 

2,060 

2,040 

2,020 

2,000

1,990 

2,010 

1,980 

1,960 

1,940

1,980 

2,020 

1,940 

1,900 

1,900

'.1,850 

1,860 

1,850 

1,860 

1,820

1,780 

1,780 

1,880 

1,840 

1,780 

1,770

Mean

2,274 

1,992 

1,885

4,685

1,910 

2,749 

6,845 

9,435 

6,526 

2,502 

2,100 

1,944 

1,169

3,446

Sept.

1,740 

1,700 

1,620 

1,600 

1,530

1,550 

1,270 

1,250 

1,200 

1,170

1,110 

1,120 

1,120 

966 

924

970 

970 

886 

886 

1,040

984 

1,120 

1,040 

1,040 

1,000

858 

1,110 

1,040 

1,110 

1,150

Runoff in 

acre-feet

139,800 

118,600 

115,900

3,401,000

117,500 

152,600 

420,900 

561,400 

401,300 

148,900 

129,000 

119,500 

69,570

2,495,000

Peak discharge (base. 16,800 see.-ft.).- Mar. 11 (2 a.m.) 16,800 sec.-ft.
FEATHER RIVER BASIN 

Feather River at Nicolaus, Calif.

343

Location.- Water-stage recorder, lat. 38-°54'00", long. 121°35'05", at Nlcolaus, Sutter 

bounty, 0.4 mile downstream from highway bridge. Zero'of gage Is set to datum of Corns 

of Engineers. '

Records available.- June 1921 to December 1942 (low-water periods only) and April 1943 to 

septenmer 1949 In reports of Geological Survey. 1939-49 in reports of Division of Water 

Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 25,700 second-feet Mar. 12 (gage height, 37.00 

reetj; minimum, 124 second-feet Aug. 8, 9 (gage height, 19.88 feet).

1943-49: Maximum discharge, 94,000 second-feet Dec. 30, 1945 (gage height, 45.23 

feet).

1921-49: No flow Aug. 2-18, 1924, July 11-22, 24, 26, Aug. 1, 1931-

Remarks.- Records good except those far periods of backwater or no gage-height record, 

which are fair. Flow partly regulated by reservoirs and power plants. Many diversior.s 

above station for irrigation. See "Remarks" for Feather River near Oroville.

Cooperation.- Records collected and prepared in cooperation with Division of Water 

Kesources, Department of Public Works, State of California,

Discharge, In second-feet, water year October 194S to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

3H 

12 

13 

14 

15

16 

17 

IS 

19

ao

21 

22 

23 

24 

25

26 

27 

2p 

29 

3D 

31

Oct.

1,830 

1,890 

1,860 

1,940 

1,860

2,110 

2,180 

2,140 

2,14O 

2,120

2,12O 

2,180 

2,28O 

2,340 

2,390

2,450 

2,380 

2,360 

2,170 

2,040

2,060 

2,130 

2,130 

2,27O 

2,090

2,O9O 

2,160 

2,220 

2,280 

2,360 

2,430

Nov. "

2,380 

2,860 

4,150 

3,580 

3,400

2,950 

2,570 

2,160 

2,230 

2,370

2,380 

2,100 

2,070 

1,850 

1,610

2,010 

2,630 

2,820 

2,680 

2,450

2,190 

1,86O 

1,980 

2,010 

2,190

1,99O 

1,940 

1,870 

1,570 

1,610

Dec.

2,130 

2,160 

2,140 

2,450 

2,390

2,660 

3,000 

2,910 

3,180 

2,770

2,460 

2,150 

2,130 

4,830 

4,360

3,660 

3,580 

3,98O 

3,210 

2,770

2,790 

2,800 

2,680 

2,500 

2,280

2,210 

2,640 

4,020 

3,440 

2,850 

2,630

Jan.

2,640 

2,940 

2,980 

2,790 

2,810

2,920 

3,130 

3,070 

2,840 

2,760

2,48O 

3,000 

3,460 

3,600 

3,480

3,220 

2,790 

2,630 

2,850 

3,000

3,220 

3,380 

3,280 

2,490 

2,490

2,710 

2,770 

2,740 

2,800 

2,830 

2,280

Feb.

2,640 

3,190 

3,450 

3,550 

3,720

4,060 

3,840 

4,650 

4,620 

4,220

4,880 

6,980 

5,170 

4,030 

3,780

3,880 

3,760 

3,660 

3,550 

3,630

3,840 

4,790 

5,360 

6,670 

6,660

6,420 

6,300 

6,150

Motith

Oeto 

Hove 

Dece

Ca

Janu 

Fet>r 

Marc 

Aprl

June 

July 

Augu 

Sept

Ha

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

5,970 

5,900 

13,40O 

23,200 

20,800

16,800 

13,500 

10,700 

9,120 

8,990

18,100 

25,000 

'o22,000 

016,000 

013,000

012,000 

013, OOO 

013,000 

014,000 

017,000

016,000 

015,000 

016,000 

015,000 

014,000

013,000 

011,000 

011,000 

11,000 

10,300 

9,650

Apr.

9,120 

8,800 

8,780 

8,780 

9,O90

9,840 

9,900 

10,800 

11,500 

12,300

13,300 

14,800 

15,900 

16,200 

16,500

16,800 

17,200 

17,700 

17,400 

17,600

17,000 

16,300 

16,600 

16,700 

16,000

14,700 

13,400 

12,600 

11,600 

11,000

Secondfoot-clays

67,000 

70,460 

89,760

2,393,855

9O,38O 

127,450 

433,430 

408,210 

268,950 

49,439 

7,017 

4,651 

13,856

1,630,603

May

9,940 

9,660 

1O,100 

10,300 

9,630

9,260 

9,020 

9,100 

8,930 

8,180

8,240 

9,840 

10,700 

10,800 

12,300

11,400 

11.3PO 

11,100 

9,490 

8,620

7,880 

6,880 

6,480 

6,540 

6,860

a7,200 

a7,100 

a6,400 

a5, 600 

a5, 300 

a4,800

Maximum

2,450 

4,150 

4,830

40,200

3,600 

6,980 

25,000 

17,700 

12,300 

4,300 

374 

186 

699

25,000

June

4,300 

4,000 

3,570 

3,180 

2,780

2,570 

2,500 

2,470 

2,330 

2,130

2,040 

1,910 

1,660 

1,380 

1,230

1,200 

1,140 

1,030 

974 

905

800 

744 

730 

724 

672

611 

534 

480 

449 

396

July

352 

374 

365 

324 

282

279 

258 

238 

272 

261

251 

244 

229 

261 

210

187 

193 

190 

190 

196

178 

176 

162 

168 

146

152 

165 

176 

173 

181 

184

Minimum

1,830 

1,570 

2,13O

233

2,280 

2,640 

5,900 

8,780 

4,800 

396 

146 

129 

183

129

Aug.

154 

139 

162 

162 

154

139 

142 

132 

129 

136

132 

139 

146 

142 

142

146 

136 

139 

146 

152

144 

144 

157 

167

167

157 

154 

157 

173 

176 

186

Mean

2,161 

2,349 

2,895

6,541

2,915 

4,552 

13,980 

13,610 

8,676 

1,648 

226 

150 

462

4,467

Sept.

200 

1911 

19(1 

200 

182.

21] 

24<l 

27f 

30] 

340

390 

50] 

503 

503 

49E

503 

52£ 

54S 

579 

543

645 

699 

627 

699 

669

603 

573 

531 

687 

687

Runoff In 

acre-feet

132,903 

139,803 

178,003

4,751,0013

179,301) 

252,80)) 

659,700 

809,700 

533,500 

98,060 

13,920 

9,230 

27,480

3,234,000

B Ho gage-height reoord; discharge computed on basis of unpublished records for station below 

Shanghai Bend.

p Backwater from Sacramento River; discharge computed on basis of unpublished records for station 

below Shanghai Bend.
344 FEATHER RIVER BASIN

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

Location.- Water-stage recorder, lat. 40°11', long. 121°II 1 , In NW£ sec. 22, T. 27 N., R.

7 JS., 0.2 mile upstream from outlet of tunnel from Lake Almanor to Butt Creek and 2.8

miles southwest of Prattville. Altitude of gage, about 4,400 feet (from topographic

map). Prior to Nov. 12, 1948, recorder at site 1.5 miles upstream at different datum. 

Drainage area.- 67.0 square miles. 

Records available.- November 1948 to September 1949. October 1936 to September 1937, Octooer j.aaa to October 1948 at site 1.5 miles upstream. 

Average discharge.- 12 years (1936-37, 1938-49), 63.9 second-feet. 

Jixtremes.- Maximum discharge during year, 252 second-feet Apr. 16 (gage height, 2.36

feet); minimum, 17 second-feet Dec. 22.

1936-37, 1938-49: Maximum 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 except those for periods of no gage-height record, which are fair.

HO storage above station. Wallack ditch, above station, occasionally diverts several

second-feet into Yellow Creek Basin. 

Cooperation.- Water-stage recorder graph, furnished by the Pacific Gas & Electric Co.,

obtained in connection with a Federal Power Commission project.

Rating table, water year 1948-49 (gage height, In feet,

and discharge, In seeond-feet) 

(Shifting-oontrol method used Oct. 1 to Nov. 11)

0.9 18 1.5 68 

1.0 23 1.7 98 

1.1 29 2.0 155 

1.3 46 2.3 233

Discharge, in second-feet, water year October 1948 to September 1949.

Day

1 

2 

3 

4 

5

6 

7 

8 

9 10 '

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

 24 

25

26 

27 

28 

29 

30 

31

Oct.

22 

22 

22 

23 

24

23 

23 

22 

22 

22

24 

24 

24 

26 

25

24 

24 

24 

25 

26

26 

26 

26 

26 

26

26 

27 

27 

29 

30 

3O

Nov.

56 

40 

aZ5 

a33 

a32

a31 

a30 

a30 

a30 

a30

a30 

a34 

34 

35 

64

48 

48 

39 

39 

37

35 

35 

35 

35 

34

33 

31 

34 

34 

35

Dec.

35 

36 

37 

36 

36

38 

40 

39 

38 

38

40 

46 

53 

45 

42

40 

41 

39 

36 

38

36 

28 

30 

29 

38

36 

36 

36 

35 

35 

35

Jan.

35 

31 

26 

30 

a33

a33 

a33 

a32 

a32 

a31

h31

a31

831

a31

a31

a30 

a30 

a30 

a30 

a30

a30 

a30 

a30 

a3O 

a30

a28 

a28 

a28 

a28 

a28 

a28

Feb.

a28 

a 28 

a28 

a28 

a28

a30 

a30 

a30 

a31 

a35

32 

31 

31 

31 

a32

a32 

a32 

a33 

a35 

a 40

a45 

aS4 

a52 

a5O 

aSO

aSO 

a48 

a48

Month

oeto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

.endar year 1948

ter year 1948-49 .......................

Mar.

a48 

a47 

a47 

a47 

a47

a45 

a45 

a45 

a45 

aSO

a54 

a52 

a50 

a45 

a40

a45 

51 

60 

69 

64

61 

61 

53 

51 

50

51 

57 

62 

56 

55 

53

Apr.

57 

72 

79 

88 

98

106 

117 

113 

130 

149

166 

183 

186 

186 

191

207 

213 

210 

224 

201

201 

204 

201 

183 

169

160 

151 

149 

142 

128

Seeondfoot-flays

770 

1,096 

1,167

23,421

939 

1,022 

1,606 

4,664 

3,061 

1,003 

668 

625 

622

17,243

May

128 

153 

149 

130 

123

121 

121 

117 

115 

117

126 

132 

13* 

130

121

115 

105 

100 

88 

81

72 

67 

63 

61 

60

56 

54 

52 

57 

57 

56

Maximum

30 

64 

53

340

35 

54 

69 

224 

153 

54 

25 

22 

24

224

June

54 

48 

44 

42 

41

40 

39 

37 

36 

36

35 

35 

34 

32 

31

31 

31 

31 

31 

31

29 

28 

28 

27 

27

25 

25 

25 

25 

25

July

25 

24 

24 

24 

24

24 

23 

22 

22 

22

22 

22 

22 

22 

22

21 

21 

21 

20 

20

20 

20 

20 

2Q 

20

20 

 20 

20 

20 

20 

21

Aug.

21 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

22 

22 

20 

20

Minimum Mean

22 24.8 

30 36.5 

28 37.6

20 64.0

26 30.3 

28 36.5 

40 51.8 

57 155 

52 98.7 

25 33.4 

20 21.5 

20 20.2 

19 20.7

19 47.2

Sept.

20 

20 

19 

20 

19

19 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

19 

20 

21 

21

22 

22 

22 22" 

22

22 

22

23 

23 

24

Runoff In 

acre-feet

1,530 

2,170 

2,310

46,440

1,860 

2,030 

3,190 

9,250 

6,070 

1,990 

1,320 

1,240 

1,230

34,190

Peak discharge (base, 220 see. -ft. .- Apr. 16 (11:30 p.m.) 252 see. -ft.

a No gage-height record; discharge computed on basis of records for Butt Creek below tunnel and 

Jleer Creek near Vlna.

h Computed from staff-gage reading.
FEATHER RIVER BASIN 345

Butt Creek below Almanor-Butt Creek tunnel, near Prattvllle, Calif.

Location (revised).- Water-stage recorder and concrete control, lat 4Q°11', long. 121°i:.', 

in NW^ sec . 22, t1 . 27 N. , R. 7 E., 400 feet downstream from outlet of tunnel from Lakfi 

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 1949.

Average discharge.- 11 years, 708 second-feet.

Extremes.- Maximum discharge during year, 1,120 second-feet May 2 (gage height, 3.11 feet); 

minimum, 58 second-feet June 8, 9.

1938-49: Maximum discharge, 2,170 second-feet Mar. 30, 1940 (gage height, 4.37 feet); 

minimum, 34 second-feet Mar. 24, 1948.

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

good. Difference in flow at this station and at station above tunnel (see preceding 

page) shows amount of diversion from Lake Almanor to Butt Creek and Butt Valley Reservoir plus natural local inflow from 0.3 square mile of intervening drainage area.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Rating tsble, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.6 50 1.7 335 

.7 64 2.0 464 

.9 100 2.4 665 

1.1 144 2.8 905 

1.4 228 3.2 1,180

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

*

3 

4s

6 

7 

8 

9

10

11 

12 

13

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

964 

964 

964 

964 

964

964 

964 

957 

957 

957

957 

950 

957 

957 

957

950 

950 

950 

950 

957

957 

957 

957 

957 

964

957 

957 

957 

957 

964 

964

Nov.

984 

977 

977 

964 

957

957 

950 

950 

960 

950

950 

950 

950 

950 

977

957 

957 

950 

950 

950

950 

950 

950 

950 

950

944 

950 

950 

950 

575

Dec.

72 

74 

72 

72 

72

72 

600 

957 

957 

957

957 

964 

970 

964 

594

85 

83 

81 

78 

83

79 

71 

74 

502 

957

964 

964 

964 

610 

85 

83

Jan.

81 

78 

71 

76 

79

79 

514 

957 

957 

964

964 

964 

964 

964 

964

964 

964 

964 

567 

a80

aSO 

a80 

a80 

380 

537

964 

964 

964 

964 

964 

964

Feb.

964 

964 

964 

964 

964

964 

957 

964 

964 

964

588 

78 

78 

78 

79

591 

957 

957 

957 

957

957 

674 

98 

94 

94

94 

92 

92

Month

Octo

Hove

Decs

Ca

Janu PebrMarc 

Apr* 

May.

June 

July 

Augu 

Sept

wa

lender year 1948

ter year 1948-49 .......................

Mar.

92 

92 

90 

90 

87

a85 

a85 

a85 

a85 

a400

3970 

a970 

3970 

a970 

8970

964 

970 

977 

991 

984

984 

984 

970 

970 

964

970 

977 

977 

970 

970 

970

Apr.

1,

1, 

1,

Secondfoot -days

39,703 

28,376 

14,117

230,634

18,846 

17,148 

21,633 

12,318 

15,158 

21,093 

39,436 

38,940 

37,486

264,143

977 

984 

991 

690 

147

152 

160 

157 

173 

195

213 

228 

231 

231 

241

251 

358 

258 

268 

244

241 

244 

241 

228 

213

204 

698 

080 

070 

050

May

1,050 

1,090 

1,080 

1,060 

1,050

1,050 

1,050 

1,050 

1,050 

1,050

1,050 

1,070 

619 

165 

154

147 

132 

133 

110 

104

94 

89 

87 

85 

83

79 

76 

74 

79 

79 

79

Maximum

964 

984 

970

1,110

964 

964 

991 

1,080 

1,090 

957 

950 

944 

938

1,090

June

76 

72 

67 

64 

63

63 

61 

60 

533 

957

957 

957 

957 

957 

957

950 

950 

957 

957 

957

9SO 

950 

957 

957 

957

950 

950 

950 

950 

950

July

950 

950 

950 

950 

950

950 

950 

950 

950 

950

950 

950 

950 

950 

950

950 

950 

950 

950 

950

950 

950 

950 

950 

950

950 

950 

944 

944 

944 

944

Aug.

944 

944 

944 

938 

938

938 

938 

938 

938 

944

944 

938 

938 

931 

931

931 

931 

931 

924 

924

924 

924 

934 

934 

924

931 

931 

931 

931 

931 

938

Minimum Mean

950 958 

575 943 

71 455

40 630

71 608 

78 612 

85 698 

147 411 

74 489 

60 703 

944 949 

934 934 

905 916

60 724

Sept.

938 

938 

931 

924 

924

924 

918 

918 

918 

918

918 

918 

918 

918 

918

913 

912 

9TL2 

912 

913

91H 

912 

912 

912 

912

905 

905 

905 

905 

90S

Runoff In 

acre-feet

58,910 

56,080 

28,000

457,400

37,380 

34,010 

42,910 

24,430 

30,070 

41,840 

58,370 

57,400 

54,520

533,900

a No gage-height record; discharge computed on basis of records for station above tunnel and for 

tunnel gate operation. 
346 FEATHER RIVER BASIN

Indian Creek near Crescent Mills, Calif.

Location.- Water-stage recorder, lat. 40°05', long. 120°56', in SW£ sec. 25, T. 26. N., R. 

9 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 1949. January 1906 to December 1909 and 

September 1911 to March 1918 at site 800 feet upstream.

Average discharge.- 28 years (1906-9, 1911-17, 1930-49), 502 second-feet.

Extremes.- Maximum discharge during year, 1,500 second-feet Apr. 13 (gage height, 6.45 

feet ) ; minimum, 2.3 second-feet Aug. 12.

1906-9, 1911-18, 1930-49: Maximum discharge, 14,000 second-feet Feb.. ,28, 1940 (gage 

height, 16.07 feet), from rating curve extended above 4,000 second-feet by logarithmic 

plotting; minimum, 1.7 second-feet, Aug. 25, 1931.

Remarks.- Records good except those for periods of ice effect, which are fair, and those 

lor periods of no gage-height record, which are poor. Diversions above station for 

Irrigation in Indian and Genesee Valleys.

Discharge, In second-feet, water year October 1943 to September 194

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

27 

28 

29 

30 

31

Oct.

19 

17 

16 

16 

16

15 

15 

15 

16 

16

21 

20 

17 

18 

20

24 

27 

26 

27 

30

30 

3O 

34 

34 

39

41 

36 

38 

43 

50 

50

Nov.

114 

162 

132 

' 11594

84 

74 

68 

63 

62

60 

60 

61 

59 

89

87 

84 

79 

78 

75

70 

66 

65 

68 

67

66 

63 

60 

64 

66

Dec.

67 

67 

83 

83 

88

100 

98 

96 

91 

88

87 

92 

132 

143 

136

122 

113 

112 

102 

97

107 

96 

76 

68 

80

86 

89 

69 

89 

94 

94

Jan.

101 

102 

84 

70 

72

74 

74 

74 

66 

56

58 

62 

68 

66 

64

68 

68 

68 

60 

64

66 

68 

64 

58 

60

64 

68 

68 

69 

70 

70

Feb.

71 

77 

76 

77 

77

79 

77 

77 

83 

89

a86 

 a92 

a74 

91 

90

90 

89 

92 

97 

102

107 

139 

198 

232 

256

296 

329 

370

Month

Octo 

Hove 

Decs

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Va

lendar year 1948

ter year 1943-49 .......................

Mar.

393 

411 

417 

417 

423

390 

364 

356 

356 

394

591 

615 

a590 

a575 

564

775 

850 

840 

830 

820

755 

728 

714 

633 

547

502 

498 

575 

595 

564 

526

Apr.

477 

488 

522 

554 

660

820 

955 

1,080 

1,130 

1,220

1,360 

1,460 

1,480 

1,450 

1,360

1,320 

1,330 

1,330 

1,430 

1,420

1,330 

1,250 

1,220 

1,190 

1,100

980 

885 

780 

714 

633

Secondfoot-days

816' 

2,355 

2,965

109,102.2

2,144 

3,613 

17,608 

31,928 

14,813 

1,880 

267.8 

130.2 

215 . 9

78,735.9

Peak discharge (base, 1,100 sec. -ft.).- Apr. 13 (6 p.m

May

572 

558 

561 

526 

. 484

441 

414 

393 

381 

375

387 

387 

384 

438 

669

905 

845 

723 

664 

660

624 

554 

488 

423 

375

327 

289 

258 

243 

236 

229

Maximum

50 

162 

143

3,860

102 

370 

850 

1,480 

905 

227 

18 

7.0 

13

1,480

. ) 1,500 sec

June

227 

208 

183 

117

90

89 

84 

58 

65 

54

38 

41 

47 

50 

41

48 

51 

43 

41 

38

33 

32 

30 

30 

a29

326 

324 

a22 

aEl 

a 20

Minimum

July

alS 

h!6

al5 

a!4 

a!4

a!3 

a!2 

a!2 

all 

alo

39

a8 

a7

87

a6 

h6.£

86

a6

86

a6

86 

86 

87

 a7 

7.0

5.5 

5.1 

5.1 

5.7 

5.5 

5.7

15

59 

67

3.6

56 

71 

356 

477 

229 

20 

5.1 

2.7 

4.4

2.7

. -f t . j Apr

Aug.

4.7 

3.6 

3.2 

3.4 

3.1

3.0 

3.6 

4.6 

S.I 

5.1

3.8 

2.7 

2.9 

2.9 

3.3

3.6 

3.6 

4.6 

4.6 

3.8

4.6 

7.0 

5.7 

4.4 

3.3

3.6 

3.6 

5.3 

5.5 

5.3 

6.7

Mean

26.3 

78.5 

95.6

298

69.2 

129 

568 

1,064 

478 

62.7 

8.64 

4.20 

7.20

216

. 19 (4 p.m

Sept.

7.6 

6.4 

5.3 

5.3 

4.9

5.7 

7.6 

6.2 

9.6 

9.6

9.9 

7.0 

6.2 

7.0 

6.4

6.0 

5.1 

4.9 

4.7 

4.4

4.6 

4.6 

4.4 

11 

8.3

8.9 

8.3 

11 

12 

13

Runoff In 

acre-feet

1,620 

4,670 

5,880

216,400

4,250 

7,170 

34,920 

63,330 

29,380 

3,730 

531 

258 

428

156,200

.) 1,450

sec.-ft.

a Ho gage-height record; discharge computed on basis of records for Spanish Creek near Keddle.

h Computed from staff-gage reading.

Hote.- Stage-discharge relation affected by Ice Dec. 23, 24, Jan. 4-31.
FEATHER RIVER BASIN 347

Spanish Creek at Keddie, Calif.

Location.- Water-stage recorder, lat. 40°00'05", long. 120°57'20", in NE£ sec. 27, T. 25 

 N., R. 9 E., 200 feet upstream from Blackhawk Creak 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 1949. October 1911 to,September 1933 at 

site 1.2 mij.es downstream.

Average discharge.- 16 years (1933-49), 241 second-feet.

Extremes.- Maximum discharge during year, 938 second-feet Apr. 16 (gage height, 4.11 feet); 

minimum, 11 second-feet Aug. 13.

1911-49: Maximum discharge, 12,400 second-feet Dec. n, 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 periods of ice effect, which are fair. Diversion 

above station for irrigation in American Valley.

Revisions (water years).- W 1041: 1938(M).

Rating table, water year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet)

(Shifting control method used July 11 to Sept. 30)

0.9 11

1.0 14

1.1 17

1.2 20

1.3 

1.5 

1.7 

1.9 61

Z.I 83

Z.Z 97

2.4 132

2.6 179

2.8 238

3.1 348

3.5 535

4.0 850

Discharge, in second-feet, water year October 194,8 to September 1949

Day

1 

2 

3 

4

 5

6 

7 

8 

9 

10

11 

12, 

13

14 

15

16 

17 

18 

19 

20

21 ' 

22 ' 

23 

24 

25

26 

27 

28 

29 

30 

31

Octo 

Hove 

Deoe

Ca

Janu 

Febn 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

Oct.

34 

31 

30 

33 

36

35 

34 

33 

32 

32

32

35 

35 

39 

40

38 

37 

37 

36 

38

38 

37 

37 

36 

38

36 

37 

36 

45 

55 

52

Nov.

130 

134 

121 

90

71

65 

59 

56 

55 

54

53 

52 

52 

52

116

93

83 

71 

71 

67

61 

59 

58 

58 

56

55 

51 

50 

50 

52

Dec.

52 

52 

78 

70 

83

86

77 

79 

76 

72

71 

108 

226 

1'34 

108

97 

90 

83

77 

75

77 

59 

54 

50 

54

58 

64 

64 

65 

66 

66

Jan.

72 

73 

49 

50 

52

54 

56 

58

*58 

32

36 

40 

44 

48 

46

44 

46 

48 

46 

46

48 

50 

50 

48 

50

52 

54 

52 

50 

54 

52

Feb.

54 

56 

58 

60

60

58 

58 

58 

60 

64

66

70 

52 

60 

66

68 

70 

72 

77 

84

93 

121 

216 

199 

210

216 

222 

232

Month

Lendar year 1948

TL..... ..................................

ter year 1948 49 .......................

Mar.

229 

325 

377 

309 

276

241 

241 

226 

216 

317

626 

552 

404 

386

440

710 

710 

738 

808 

662

562 

515 

417 

348 

313

309 

356 

408 

344 

325 

287

Apr.

294 

321 

332 

386

460

490 

557 

540 

596

674

773 

815 

787 

745 

731

780 

822 

822 

815 

698

686 

738 

738 

668 

584

520 

485 

445 

412 

365

Secondroot-days

1,144 

2,095 

2,471

82,523

1,542 

2,780 

12,977 

18,079 

7,739 

1,779 

694 

520 

554

52,374

May

352 

386 

373 

340 

317

305 

305 

298 

279

276

313 

305 

287 

325 

313

294 

269 

255 

226 

222

196 

187 

179 

169 

164

145 

139 

136 

128 

128 

128

Maximum

55 

134 

226

3,070

73 

232 

808 

822 

386 

126 

36 

24 

25

822

June

126 

119 

108 

96 

82

81 

78 

77 

75 

68

63

61 

53 

43 

38

35 

35 

48

58 

57

52 

47 

38 

41 

38

34 

32 

32 

34 

30

July

34 

36 

29 

28 

29

30 

30 

30 

29 

27

24 

24 

20 

21 

22

17 

14 

15 

15 

15

16 

18 

17 

19 

18

18 

18 

20 

~Sl 21 

20

Minimum

30 

50 

50

16

32 

52

216 

294 

128 

30 

14 

12 

14

12

Aug.

20 

19 

19 

18 

18

18 

17 

18 

17 

17

14 

13 

12

12 

14

15 

14 

14 

14 

15

16 

16 

17 

17

17

18 

18 

20 

24 

20 

19

Mean

36.9 

69.. 8

79.7

225

49.7 

99.3 

419 

603 

250 

59.3 

22.4 

16.8 

18.5

143

Sept.

18 

18 

14 

15 

14

15 

17 

17 

21 

22

21 

22 

21 

20 

20

20 

20 

20

19 

18

18 

16 

17 

16 

15

16 

17 

20 

22 

25

Runoff In 

acre-feet

2,270 

4,160 

4,900

163,700

3,060 

5,510 

25,740 

35,860 

15,350 

3,530 

1,380 

1,030 

1,100

03,900

PeAk discharge (base, 850 sec.-ft.).- Mar. 18 (11 p.m. 922 sec.-ft.; Apr. 12 (1 a.m.) 914 sec.-ft. 

Apr. 16 (12 p.m.) 938 sec.-ft.; Apr. 22 (11:30 p.m.) 860 see.-ft. 

* Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dec. 23-28, Jan. 5 to Peb 17.
348 FEATHER RIVER BASIN 

Bucks Creek Reservoir near Bucks Ranch, Calif.

Location.- Water-stage recorder, lat. 39°54', long. 121°12', in NW£ sec. 33, T. 24 N., R. 

7 B., 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.).

Drainage ar£a.- 28 square miles.

Records available.- October 1928 to September 1949.

Extremes.- Maximum contents during year, 87,"700 acre-feet June 18-22 (elevation, 5,147.0 

reet); minimum, 57,700 acre-feet Apr. 11 (elevation, 5,128.5 feet).

1928-49: Maximum contents, 105,800 acre-feet June 23, 1938 (elevation, 5,157.1 

feet); minimum, 12,330 acre-feet Feb. 27, 1929 (elevation, 5,090.7 feet).

Remarks.- Reservoir is formed by concrete-faced rock-fill dam completed in 1927; storage 

began in May 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 Grissly 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 Sas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

S

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

81,400

81,400

81,400

81,400

81,400

81,400

81,400

81,300

81,500

81,400

81,300

81,300

81,100

81,100

81,000

80,900

80,700

80,500

80,200

80,000

79,700

79,500

79,200

79,000

78,800

78,500

78,400

78,100

77,900

77,700

77,500

Nov.

77,700

77,900

78,000

78,200

78,400

78,500

78,500

78,400

78,300

78,200

78,000

78,000

77,900

77,700

77,500

77,400

77,200

77,100

76,900

76,700

76,500

76,400

76,20a

76,100

75,900

75,900

75,700

75,800

75,800

75,900

-

Deo.

75,500

75,400

75,400

75,300

75,200

75,100

74,900

74,700

74,500

74,300

74,200

74,100

74,300

74,300

74,400

74,500

74,700

74,700

74,800

74,900

74,900

75,000

75,100

75,200

75,200

75,200

75,400

75,400

75,400

75,500

75,600

Jan.

75,600

75,700

75,700

75,800

75,800

75,900

76,100

76,100

76,000

75,600

75,200

74,900

74,600

74,300

73,900

73,600

73,300

73,000

72,800

72,500

72,300

72,000

71,800

71,600

71,300

71,200

70,900

70,800

70,600

70,400

70,200

Feb.

69,700

69,200

68,900

68,700

68,500

68,400

68,400

68,300

68,100

68.0OO

68,000

67,800

67,600

67,400

67,200

67,000

66,500

66,100

65,600

65 , 200

64,800

64,700

64,600

64,600

64,800

65,000

65,200

65,200

_

-

-

Mar.

65,000

64,900

64,900

64,800

64,800

64,600

64,200

63,900

63,600

63, 300

63,000

62,700

62,300

62,100

61,800

61,400

61 , 100

60,800

60,500

60,200

60,200

60,200

60,200

60,200

60,200

60,200

60,200

60,40O

60,500

60,500

60 , 400

*pr.

60,000

59,600

59,200

58,900

58,600

58,200

58,000

58,000

57,900

57 , 8OO

57,700

58,000

58,300

58,600

58,900

59,400

59,800

60,200

60,600

61,100

61,600

62,100

62,800

63,400

63,900

64,500

65,000

65,500

66,100

66,500

-

Hay

67 , 100

67 , 600

68,200

68,700

69,200

69,600

70,200

70,800

71,200

71,700

72,700

73,400

74,200

75,100

75,700

76,6OO

77,100

77,900

78,400

78,900

79,300

79,700

80,300

80,800

81,400

81,900

82,400

82,900

83,300

83,400

83,900

June

84,300

84,600

85,000

85,300

85,600

85,800

86,OOO

86,2OO

86,40O

86,700

86,900

87,000

87,200

87,200

87,400

87,500

87,500

87,700

87,700

87,700

87,700

87,700

87,600

87,500

86,900

86,400

86,100

85,6OO

85,400

85,400

-

July

85,400

85,400

85,400

85,400

85,400

85,400

85.40O

85,400

85,4OO

85,500

85,500

85,500

85,500

85,600

85,600

85,600

85,6OO

85,500

85.50O

85,300

85,200

85,100

84,900

84,600

84,400

84,200

83,900

83,8OO

83,500

83,30O

83,000

Aug.

83,000

83,OOO

82,900

82,900

8'2,900

82,800

82,800

82,700

82,700

82,700

82,700

82,700

82,700

82,700

82,700

82,700

82,700

82,7OO

82,700

82.7OO

82,700

82,700

82,700

82,700

82,700

82,400

82,200

82,000

81,9OO

81,600

81,600

Sept.

81,600

81,600

81,600

81,600

81,500

81,400

81,100

80,90O

8O, 6OO

8O.30O

80,200

80,100

80,100

80,100

80,100

80, 100

80,OOO

80,000

8O,OOO

79,900

79,900

79,900

79,900

79., 900

79,900

79,900

79,900

79,900

79.8OO

79,700

-

Monthly elevation and contents, water year October 1948 to September 1949

Date

Deo. 31. ....................

Calendar year 1948 ........

Sept. 30. ....................

Water year 1948-49. .......

Elevation 

(feet)t

5,139.8

-

5,142.3

-

Contents 

(acre-feet)

75,600

79,700

-

Change In contents 

during month 

(acre-feet)

-1,600

-300

+12,800

-5,400

-4,800

+6,100

-2,400

-1,900

-1,700

t Elevation at 12 p.m.
FEATHER RIVER BASIN 349

West Branch Feather River near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°42', long. 121°34", in SWir sec. 5, T. 21 N., R. 

4 &., at highway bridge, 1.4 miles downstream from Concow Creek and 2 miles west of 

Yankee Hill. Altitude of gage, about 1,100 feet (from topographic map).

Drainage area.- 145 square miles.

Records available.- September 1930 to September 1949.

Average discharge.- 19 years, 323 second-feet.

Extremes.- Maximum discharge during year, 3,440 second-feet Mar. 10 (gage height, 11.62 

feet); minimum, 4.4 second-feet Oct. 1.

1930-49: 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.351} 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.338) for power development in De Sabla 

and Centerville plants of Pacific Gas & Electric Co. Round Valley Reservoir (capacity, 

1.285 acre-feet) and Philbrook Reservoir (capacity, 4,875 acre-feet) provide 

storage on headwaters for these three canals.

Hating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feetj

2.3 4.6 3.0 38 5.5 439 

2.4 7.1 3.3 61 6.0 576 

2.5 10 3.6 89 7.0 930 

2.6 14 4.0 135 8.0 1,360 

2.7 19 4.5 216 9.0 1,830 

2.8 25 5.0 321 9.6 2,160

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

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.

4.9 

5.3 

6.3 

6.8 

6.6

6.1 

5.3 

5.1 

4.6 

4.9

5.5 

6.3

6.6 

6.8

7.1

6.1 

6.8 

6.6 

6.8 

7.4

7.4 

7.4

7.1 

7.1 

7.1

6.8 

6.8 

6.6 

6.8 

8.8 

8.2

Nov.

133 

224

111 

62 

27

20 

17 

13 

5.8 

5. 5

5. 5 

5.5

3o'

55 

48 

23

12 

9.8

8.8 

7.9 

7.4

7.1 

7.1

7.1 

6.8 

6.6 

6.3 

6.3

Dec.

6.3 

6.6 

26

27 

60

45 

38 

65 

33 

24

17 

166 

427 

164 

86

59 

59 

45 

32

31

29 

24 

18

16 

25

29 

99

65 

50 

81 

74

Jan.

110 

110 

72 

72 

79

79 

72 

87 

68 

39

65 

75 

71 

61 

55

51 

44 

44 

47 

45

51 

57 

55 

66 

63

61 

62 

56 

47 

46 

45

Feb.

45 

44 

51 

62 

81

74 

72 

72 

68 

109

281

112 

85 

81 

69

63

72 

85 

110 

191

269 

377 

485 

392 

344

303

277 

243

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary .

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

ter year 1948-49 .......................

Mar.

212 

754 

1,110 

684 

477

404 

319 

260 

291 

1,140

2,160 

1,360 

633 

404 

367

546 

603 

576 

944 

800

609 

564 

456 

402 

356

337 

383 

330 

292 

273 

250

Apr.

246 

264 

297 

319 

372

424 

452 

444 

490

561

667 

694 

708 

733 

789

850 

894 

866 

918 

874

914 

970 

1,000 

938 

866

 814 

758 

691 

657 

585

Secondfoot -days

202.0 

890.1 

1,926.9

121,291.1

1,955 

4,517 

18,296 

20,055 

15,434 

2,644 

258. 6 

178.5 

244.6

66,601.7

May

573 

70S 

719 

619 

597

600 

600 

576 

529 

552

803 

758 

775 

726 

597

600 

552 

477 

395 

353

321 

326 

339 

301 

321

310

273 

241 

273 

349

271

Maximum

8.8 

224 

427

3,470

110 

485 

2,160 

1,000 

803 

252 

33 

6.3 

9.8

2,160

June

252 

206 

175 

164

156

145 

132 

120 

110 

106

99 

92 

82 

81 

94

87 

80 

69 

55

47

59 

55 

45 

24 

23

20

18 

17 

16 

IS

July

14 

11 

9.8 

9.4 

8.8

8.8 

8.2

7.9 

7.4

7.9

6.3 

6.3

6.1 

6.1 

6.1

6.1 

5.8 

6.1 

6.3 

7.9

7.1

7.1 

6.6 

6.1 

6.3

5.3 

5.3 

12 

33 

8.2 

5.3

Aug.

5.8 

6.3

6.1 

5.8 

5.8

5. 5

5.5 

5.3 

5.3 

5.5

5.8 

5.8 

5.8 

5.5 

5.3

5.3 

5. 5

5.5 

5.5 

5.5

5.3 

5.3 

6.1 

6.3 

6.3

6.3 

6.1 

6.3 

6.3 

6.3 

5.5

Sept.

5.3

S.I 

5.5 

7.6 

8.5

8.8 

9.1 

9.1 

8.8 

9.4

9.8 

8.8 

8.8 

8.5 

8.5

8.5 

8.5 

8.2 

7.6 

7.9

8.5 

8.5 

7.6 

7.6

7.9

8.5 

8.5 

8.2 

8.5 

8.5

Minimum Mean %»%£

4.6 6. 52 401 

5.5 29.7 1,770 

6.3 62.2 3,820

4.6 331 240,600

39 63.1 3,880 

44 161 8,960 

212 590 36,290 

246 668 39,780 

241 498 30,610 

15 88.1 5,240 

5.3 8.34 513 

5.3 5.76 354 

5.1 8.15 485

4.6 182 132,100

Peak discharge (base, 1,700 sec.-ft.).- Mar. 10 (12 p.m.) 3,440 sec.-ft.
350 FEATHER RIVER BASIN

Concow Creek near Yankee Hill, Calif.

Location.- Water-Stage recprder above diversion dam of Spring Valley ditch, lat. 39°46', 

long. 121°32' , in NE7 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.

Hecords available.- (October 1927 to September 1949.

Average discharge'.- 22 years, 26.7 second-feet, combined flow of Concow Creek and Spring 

Valley ditch.

Extremes.- Maximum discharge during year, 709 second-feet Mar. 11 (gage height, 2.43 feet), 

from rating curve extended above 160 second-feet by computations of flow over dam; no 

flow most of year.

1927-49: Maximum discharge, 2,060 second-feet .Tan. 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. On Sept. 30, 1948, storage in Lake Wilenor (capacity, 8,200 acreI'eet), was 6,580 acre-feet, and on Sept. 30, 1949, it was 3,320 acre-feet. Records show 

flow passing diversion dam; for total flow out of reservoir, add that of Spring Valley 

ditch (see following page).

Cooperation.1- Water-stage recorder graph, furnished by Table Mountain and Thermallto Irrigation Districts, obtained in connection with a Federal Power Commission project.

Revisions (wager years).- W 931: 1928(M), 1940.

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

0.0 

.1 

.2 

.3 

.4

4.4

12

24 1.0

61

86

113

174

1.2 

1.4 

1.6 

1.8 

2.0

240

310

382

458

536

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

Month

Octo 

Move 

Dece

Ca

Janu 

Pebri 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Na

Jan. Feb.

0 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0

0

0

o

1.7 

22 

56

86 

113 

128 

100 

84

71 

59 

48

lendar year 1348 

ftry

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

ter year 1948-49 ...............

Mar.

48 

166 

254 

161 

116

94 

71 

57 

64 

208

481 

308 

86 

32 

55

81

86 

74 

108 

108

81 

71 

49 

35 

37

37 

37 

27 

23 

" 24 

18

Apr.

5.5 

11 

17 

17 

20

19 

19 

20 

20 

10

6.1 

6.1 

4.4 

3.4 

3.4

3.4 

4.4 

4.9 

6.1 

8.4

10 

10 

10 

10 

10

9.2 

9.2 

8.4 

9.2 

8.4

Secondfoot-days

0o 

0

6,911.1

0 

768.7 

3,097 

303.5 

72.6 

0 

0 

0 

0

4,241.8

Hay

7.6 

9.2 

9.2 

7.6 

5.9

2.5 

2.5 

2.5 

2.5 

2.9

2.9 

2.9 

2.9 

3.4 

3.4

3.4 

1.3 

0 

0 

O

'0 0 

0

o

0

o

0 

0 

0 

0 

0

Maximum

0

o

0

533

0 

128 

481 

20 

9.2 

0 

0 

0 

0

481

June July

Minimum

0

0 

0

0

0 

0 

18 

3.4 

0 

0 

0' 

0 

0

0

Aug.

Mean

0

0

c

18.9

0 

27.5 

99.9 

10.1 

2.34 

0 

0 

0 

0

11.6

Sept.

Runoff In 

acre-feet

0 

0 

0

13,710

0 

1,520 

6,140 

602 

144 

0 

0 

0 

0

8,410
FEATHER RIVER BASIN 351

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 K., 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 1949. 

Average discharge.- 22 years, 10.2 second-feet.

Extremes.- Maximum daily discharge during year, 32 second-feet Aug. 23-25; practically

 no riow Mar. 11 to May 16.

1927-49: Maximum daily discharge,.49 second-feet Oct. 25-27, 1928; no flow at timos 

during most years.

Remarks.- Records good except those for periods of ice affect, no gage height record, or ;.n-

 definite stage-discharge relation, which are poor. Ditch diverts from left bank of 

Concow Creek (see preceding page) 300 feet downstream from Lake Wilenor; water used 

foe power development in Lime Saddle and^oal Canyon plants of Pacific GastSc Electric 

Co., and for irrigation in Table Mountain aria Thermal!to 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, wat«i year October 1948 to September 1949

Day

1 

8

5 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

26 

27 

25 

21 

20

20 

20 

19 

21 

25

28 

28 

24

18

15

20 

27 

31 

31

31

31 

31 

31 

31 

30

28 

25 

25 

25 

22 

20

Nov.

9.0

7.3 

12 

12 

12

12 

12

12 

14 

17

17 

17 

17 

15 

IS

6.2 

.2 

.2 

.2 

5.9

11 

11 

11 

11 

10

5.7 

7.8 

14 

16 

16

Dec.

16 

16 

16 

6.0 

.6

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.2 

.2 

.2 

.2 

b.2

b.2 

b.2 

b.2 

b.2

b.2

.b.2 

b.2

a. 2 

a. 2 

a. 2

a. 2 

b.2 

b.2 

b.2 

b.2

b.2 

b.2 

b.2

b.2 

b.2

b.2 

a. 2 

a. 2 

a. 2 

'b.2 a. 2 

Feb.

bO.2 

b.2 

b.2 

b.2 

b.2

b.2 

b.2 

b.2 

b.2 

b.Z

b.2 

b.2 

b.2 

b.2 

b.2

b.2 

b.2 

e.2 

e.2 

e.2

e.2 

e.2 

e.2 

e.2 

e.2

e.2 

e.2 

e.2

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

lender year 1948 

ary

ter year 1948-49 ...............

Mar.

eO.l 

e.04

Apr.

eO . 04

Secondfoot-days

776 

324.5 

59.8

2,512.1

6.2 5.6 ' 

1.84 

1.20 

126.84 

212.6 

443.4 

803 

748

3,508,98

May

eO.04

4.2 

7.1 

11 

8.1

7.7 

2.5 

2.5 

13 

16

12 

8.1 

8.2 

9.0 

8.3 

8.5

Maximum

31 

17 

16

31

.2

.2

168.5.

24 

32 

29

32

June

8.5 

8.1 

7.6 

7.9 

8.1

7.9 

7.9 

8.1 

8.1 

8.1

7.9 

7.8 

7.6 

7.6 

7.6

7.1 

6.6 

6.6 

6.4 

6.4

6.2 

6.2 

' 6.2 

6.1 

6.0

6.0 

6.0 

6.0 

6.0 

6.0

July

Minimum

15 

.2 

.2

.1

.2 

.2

6.0 

5.2

21 

17

-

6.0 

5.8 

5.5 

5.2 

5.2

5.2 

5.4 

5.5 

6.6 

14

15 

16 

17 

17 

18

19 

20 

21 

21 

21

19 

15 

15 

16 

17

20 

21

15 

12 

20 

24

Aug.

Mean

25.0. 

10.8 

1.93

6.86

.20 

.20 

-.06 

.04 

4.09 

7.09 

14.3 

25.9 

24.9

9.61

25 

25 

26 

26 

26

23 

21 

21 

23 

23

23 

23 

22- 

22

25

26 

27 

27 

27 

27

28 

31 

32 

32 

32

30 

29 

29 

27 

23 

22

Sept.

22 

22 

26 

29 

29

29 

29 

29 

27 

23

23 

23 

22 

24 

24

24 

24 

24 

27 

28

26 

25 

25 

25 

25

21 

17 

22 

27

27

Hunoff In 

acre-feet

1,540 

644 

119

4,980

12 

11 

3.6 

2.4 

252 

422 

879 

1,590 

1,480

6,960

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by Ice.

e Stage-discharge relation Indefinite; discharge computed on basis of 2 estimates of flow and observer "s notes.
352 FEATHER RIVER BASIN

Middle Fork Feather River near Clio, Calif.

Location.- Water-stage recorder, lat. 39°45', long. 12d°36', in Ej sec. 23, T. 22 N., R. 

 12 E., 0.3 mile upstream from Frazier Creek and 1.5 miles northwest of Clio. Altitude 

of gage, about 4,350 feet (from topographic map).

Drainage area.- 699 square miles.

Records available.- October 1925 to September 1949.

Average discharge.- 24 years, 242 second-feet.

Extremes.- Maximum discharge during year, 1,430 second-feet Mar. 21 (gage height, 6.60 

feet); minimum, 7.1 second-feet July 25.

1925-49: 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 periods of ice effect or no gage-height record, 

which are fair. Many small diversions above station for irrigation.

Rating tables, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 21 Mar. 22 to Sept. 30

2.0 12 2.9 106 5.0 670 1.8 7.5 2.3 31 

2.1 17 3.2 157 5.8 1,010 1.9 10 2.6 62 

2.2 23 3.6 238 6.5 1,370 2.1 18 2.9 106 

2.4 39 4.0 337 Note.- Same as preceding 

2-6 61 4.5 491 table above 2.9 feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

16 

16

17 

17

,17 

17

17 

17 

17

18 

20 

21 

22 

22

22 

22 

22 

22 

22

22 

22 

22 

22 

22

22 

23 

23 

27 

29 

30

Nov.

92 

54 

86 

38 

32

30 

28 

26 

25 

25

32 

36 

37 

38 

53

48 49 

45 

45 

46

44 

44 

44 

44 42 

42 

41 

40 

39 

37

Dec.

36 

36 

43 

42 

46

48 

47 

48 

42 

42

53 

86 

98 

72 

55

54

56 

50 

50 

b50

b50 

b50 

b45 

b40 

b40

b45 

b45 

b45 

44 

45 

44

Jan.

b45 

b40 

b40 

b40 

40

40

*b40 

b35 

35 

35

35 

35 

35 

35 

35

35 

35 

35 

35 

35

35 

35 

30 

30 

30

35 

35 

35 

35 

35 

35

Feb.

35 

35 

b35 

b35 

34

34 

34 

34 

34 

30

29 

29 

31 

31 

31

31 

31 

30 

30 

30

30 

52 

72 

74 

75

78 

76

81

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lender year 1948

ter year 1948-49 .......................

Peak discharge (base, 850 sec, -ft.).- Mar.

Mar.

82 

87 

90 

86

81

75 

75 

74 

75 

101

*265 

277 

277 

287 

305

431 

574 

770 

1,020 

1,120

1,300 

1,360 

1,310 

996 

722

625 

636 

625 

571 

501 

460

Apr.

407 

371 

351 

36E 

377

377 

467 

481 

536 

571

621 

655 

790 

826 

806

778 

770 

750 

659 

578

546 

508 

477 

419 

357

313 

274 

265 

253 

225

May

199 

191 

183 

153 

129

11? 

106 

101 

101 

100

96 

100 

104 

219 

362

305 

232 

230 

274 

365

374 

351 

307 

272 

236

203 

173 

146

130 

116 

104

foo^ys X-1" 

645 30 

1,282 92 

1,547 98

46,231 1,540

1,110 45 

1.181 81 

15,258 1,360 

15,164 826 

6,074 374 

1,243 96 

/ 339.6 16 

344.1 20 

S66.5 19

44,554.2 1,360

June

96 

90 

84 

75 

68

78 

80 

66 

58 

52

48 

43 

40 

34 

30

27 

26 

25 

25 

24

23 

21 

21 

20 

18

15 

14 

14 

14 

14

Minimum

July

13 

14 

16 

15 

15

14 

13 

12 

11 

12

11 

11 

11 

11 

11

9.7 

9.4 

9.1 

8.9 

9.1

9.4 

9.4 

9.1 

9.4 

8.9

9.4 

9.4

8.6 

9.9 

9.9 

10

Aug.

12 

10 

9.4 

10 

10

10

11

12 

11 

10

11 

12 

12 

11 

11

11 

11 

11 

11 

11

10 

10 

9.7 

10 

10

10 

10 

20 

14 

12 

11

Mean

16 20.8 

25 42.7 

36 .49.9

126

30 35 . 8 

29 42.2 

74 492 

225 505 

96 196 

14 41.4 

8.6 11.0 

9.4 11.1 

8.1 12.2

8.1 122

21 (5 p.m.) 1,430 sec. -ft.) Apr. 15 (3 a.m.)

Sept.

11

10 

9.4 

9.4 

8.1

8.9 

9.7 

11 

12 

11

11 

12

12 

14

13

12 

12 

13 

12 

12

12 

13 

12 

13 

14

14 

14 

19 

16 

16

Runoff In 

acre-feet

1,280 

2,540 

3,070

91,700

2,200 

2,340 

30,260 

30,080 

12,050 

2,470 

674 

683 

727

88,370

1,040 sec.-

ft.

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Note.- No gage-height record Jan. 5, 6, Jan. 12 to Feb. 2; discharge computed on basis of records 

for station below Sloat.
FEATHER RIVER BASIN 

Middle Fork Feather River below Sloat, Calif.

353

Location.- Water-stage recorder, lat. 39°52', long. 120°46', 0.5 mile west of Bells Bar, 

OTITles 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 1949.

Extremes.- Maximum discharge during ye.ar, 1,590 second-feet Mar. 21 (gage height, 4.14 

reet); minimum, 32 second-feet Sept. 5, 6.

1940-49: Maximum discharge, 12,400 second-feet Jan. 21, 1943 (gage height, 12.65 

feet); minimum, that of 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 and those for period April 

through September, which are fair. Flow slightly regulated by millpond at Sloat. 

Many small diversions above station for irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

13 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

37 

28 

39 

30 

31

Oct.

56 

55 

54 

56 

58

57 

56 

55 

54 

54

54 

55 

58 

61 

61

59 

58 

57 

57 

56

56 

56 

56 

56 

57

57 

57 

57 

68 

69 

69

Nov.

190 

232 

292 

148 

105

94 

88 

80 

78 

78

79 

86 

85 

85 

109

105 

109 

99 

99 

96

91 

92 

92 

92 

91

91 

86 

86 

86 

85

Dec.

85 

85 

100 

94 

97

102 

102 

105 

96 

96

103 

139 

260 

172 

142

130 

130 

119 

116 

119

123 

115 

110 

100 

100

110 

110 

110 

110 

107 

113

Jan.

109' 

109 

100 

100 

110

120 

*115 

110 

100 

90

100

no

130 

120 

110

100 

100 

100 

100 

100

100 

90 

80 

80 

80

90 

90

100 

100 

100 

100

Feb.

100

90

100

100 

130 

150 

170

170 

170 

170

Month

Oeto 

Move 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

ber. ....................................

lender year 1948 

ary

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

ter year 1948-49 .......................

Peak discharge (base, 1,600 sec. -ft.).- No

Mar.

180 

200 

235 

308 

300

185 

185 

178 

180 

213

*404 

427 

415 

439 

495

665 

815 

980 

1,330 

1,280

1,410 

1,500 

1,430 

1,190 

925

815 

837 

870 

780 

715 

640

Apr.

603 

583 

555 

583 

635

650 

740 

770 

820 

903

986

1,040 

1,150 

1,200 

1,330

1,230 

1,390 

1,330 

1,390 

1,17O

1,130 

1,150 

1,160 

1,110 

992

898 

842 

800 

750 

675

Seoondfoot-days

1,789 

3,339 

3,598

119,019

3,133 

3,050 

20,215 

38,255 

19,544 

5,466 

1,603 

1,392 

1,101

92,274

May

645 

690 

685 

615 

575

543 

543 

535 

515 

511

567 

640 

635 

952 

1,030

992 

826 

690 

665

700

675 

655 

630 

615 

607

575 

527 

479 

439 

411 

377

Maximum

69 

392

260

, 3,060

120

1,500 

1,330 

1,030 

346 

75 

58 

46

1,500

June

346 

326 

303 

290 

287

290 

303 

264 

248 

235

215 

200 

189 

176 

161

151 

140 

132 

134 

125

117 

112 

107 

102 

96

91 

86 

83 

79 

78

July

75 

71 

71 

71 

71

66 

65 

62 

57 

55

56 

50 

50 

50 

50

48 

44 

43 

43 

43

42 

42 

42 

43 

42

43 

43 

43 

41 

41 

43

Minimum

54 

78 

85

44

80

178 

555 

377 

78 

41 

38 

33

33

Aug.

44 

43 

43 

40 

40

40 

40 

40 

40 

39

40 

41 

42 

43 

41

41 

40 

40 

40 

40

40 

40 

39 

38 

39

39

41 

58 

55 

46 

43

Mean

57.7 

108 

116

335

101 

109 

653 

942 

630 

182 

51.7 

41.7 

36.7

253

Sept.

40 

40 

38 

35 

33

33

34 

36 

38 

37

36 

36 

36 

37 

37

36 

36 

36 

35 

35

36 

35 

34 

33 

35

36 

37 

46 

43 

42

Runoff in 

acre-feet

3,550 

6,400 

7,140

336,100

6,210 

6,050 

40,100 

56,040 

38,760 

10,840 

3,180 

2, SCO 

?,180

183,000

peak above base.

Winter discharge measurement made on this day. 

Note.- Stage-discharge relation affected by ice Dee. 22-28, Jan. 3 to Mar. 2.
354 FEATHER RIVER BASIN

Middle Pork Feather River at Bidiwell Bar, Calif.

Location.- Water-stage recorder, lat. 39°33', long. 121°26', In NW£ sec. 32, T. 20 N., R. 

b' JE., at highway bridge at Bi'dwell Bar, 2 miles upstream from confluence with North 

Fork and 7 miles northeast of Orovllle. Altitude of gage, about 290 feet (from topographic map).

Drainage area.- 1,353 square miles.

Records available.- October 1911 to September 1949.

Average discharge.- 38 years, 1,768 second-feet.

Extremes.- Maximum discharge during year, 6,140 second-feet Apr. 23 (gage height, 8.68 

reet); minimum', 144 second-feet Sept. 24, 25, 26.

1911-49: Maximum discharge, 93,OOO second-feet Dec. 11, 1937 (gage height, 24.0 

feet,,from floodmarks), from rating curve extended above 25,000 second-feet on basis 

of velocity-area and A</T studies; minimum, 88 second-feet Jan. 8, 1937.

Retnarks.- Records excellent. Flow slightly regulated by small reservoirs above station, 

several diversions above station for Irrigation.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.9 130 2.6 282 4.2 935 6.5 3,040 

2.0 148 2.8 338 4.5 1,120 7.0 3,680 

2^1 166 3.0 398 5.0 1,510 7.5 4,380 

2.2 .187 3.4 543 5.5 1,960 8.0 5,100 

2.4 232 3.8 720 6.0 2,460 8.5 5,850

Discharge, in second-feet, water year October 1948 to September 1949

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.

222 

218 

220 

227 

230

230 

222 

218 

213 

208

213 

218 

218 

225 

242

232 

220 

213 

210 

210

208 

208 

206 

204 

204

204 

204 

202 

218 

261 

251

Nov.

643 

1,220 

1,080 

839 

476

385 

349 

324 

304 

296

290 

288 

290 

290 

421

469 

531 

424 

385

376

355 

338 

332 

330 

327

324 

318 

310 

310 

307

Dec.

304 

304 

425 

379 

490

454 

475 

519 

441 

408

392 

825 

1,980 

1,090 

790

640 

640 

567 

495 

484

488 

455 

414 

372 

434

511 

654 

543 

480 

455 

455

Jan.

547 

575 

428 

324 

366

473 

473 

448 

379 

256

274 

376 

476 

438 

388

360 

355 

360 

379 

372

376 

405 

352 

349 

330

352 

369 

366 

352 

349 

346

Feb.

346 

349 

369 

411 

445

448 

441 

421 

418 

537

898 

519 

448 

448 

451

445 

451 

480 

495 

609

710 

788 

1,160 

1,120 

1,060

1,060 

1,070 

1,010

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

Mar.

971 

1,620 

2,690 

2,160 

1,740

1,440 

1,260 

1,130 

1,100 

1,930

3,770 

3,040 

2,230 

1,920 

1,820

2,350 

2 , 600 

2,840 

3,520 

3,760

3,540 

3,790 

3,520 

3,120 

2,620

2,310 

2,280 

2,410 

2,260 

2,160 

1,990

Apr.

1,

1, 

1, 

2, 

2,

2, 

2, 

2, 

3, 

3,

4, 

4, 

4, 

4, 

5,

5, 

5,

5, 

5, 

5,

5, 

5, 

5, 

5,

5,

Secondfoot -days

6,779 

12,931

17,363

608,371

11,993 

17,407 

73,891 

126,580 

99,780 

24,709 

8,546 

5,820 

4,758

410,557

940 

950 

960 

080 

330

570 

790 

880 

140 

560

250 

590 

730 

890 

080

240 

580 

560 

780 

430

320 

620 

850 

720 

380

960 

740 

460 

310 

890

May

3,720 

4,030 

4,100 

3,780 

3,620

3,560 

3,620 

3,580 

3,320 

3,210

3,790 

4,070 

4,090 

4,490 

4,370

4,230 

3,890 

3,290 

2,920 

2,780

2,530 

2,520 

2,530 

2,530 

2,550

2,500 

2,360 

2,150 

1,970 

1,910 

1,770

Maximum

261 

1,220 

1,980

15,000

575 

1,160 

3,790 

5,850 

4,490 

1,660 

388 

220 

181

5,850

June

1,660 

1,520 

1,410 

1,340 

1,290

1,240 

1,220 

1,150 

1,060 

989

929

864 

810 

760 

710

672 

635 

613 

604 

587

559 

531 

503 

484 

469

445 

431 

418 

408 

398

July

388 

376 

360 

352 

346

341 

332 

327 

316 

304

293 

288 

277 

272 

264

259 

251 

244 

239 

234

234 

234 

232 

232 

230

227 

225 

220 

218 

213 

218

Aug.

218 

210 

204 

195 

191

189 

189 

191 

189 

189

189 

189 

189 

185 

193

195 

191 

183 

176 

174

172 

172 

170 

168 

164

164 

166 

187 

220 

215 

193

Minimum Mean

202 219 

288 431 

304 560

202 1,662

256 387 

346 622 

971 2,384 

1,940 4,219 

1,770 3,219 

398 824 

213 276 

164 188 

144 159

144 1,125

Sept.

181 

172 

168 

162 

159

155 

153 

159 

166 

168

164 

162 

161 

161 

159

159 

157 

153 

152 

152

152 

152 

150 

146 

144

148 

152 

155 

166 

170

Runoff in 

acre-feet

13,450 

25,650 

34,440

1,207,000

23,790 

34,530 

146,600 

251,100 

197,900 

49,010 

16,950 

11,540 

9,440

814,400

Peak discharge (base, 5.600 sec.-ft.).- Apr. 23 (2 a.m.) 6,140 sec.-ft.
FEATHER Rl(VER BASIN 355

South Pork leather River at Enterprise, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°21', in SW£ sec. 6, T. 19 N., R. 

b K., 0.8 mile upstream from McCabe Creek and 1 mile upstream from highway bridge at 

Enterprise. Altitude of gage, about 550 feet (from topographic map).

Drainage area.- 134 square miles.

Records^ available.- September11930 to!September 1949. October 1911 to September 1930 at 

site hair a mile downstream.

Average discharge.- 38 years, 296 second-feet.

Extremes,- Maximum discharge during year, 1,450 second-feet Mar. 11 (gage height, 7.50 

reet); minimum, 0.4 second-foot Aug. 17, 18, Sept. 26, 27.

1911-49: Maximum discharge, 17,300 second-feet Dec. 10, 1937 (gage height, 20.4 

feet), from rating curve extended above 5,000 second-feet on basis of velocity-area 

studies; minimum, 0.2 second-foot Aug. 11, 19l7.

Remarks.- Records good. Storage and diversions above station for irrigation. (See p. 35' 

for records for Palermo Canal.)

Rating tables, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 11 Mar. 12 to Sept. 30

1.2 1.0 1.9 13 3.1 93 6.0 780 1.1 0.2 1.5 3.6 

1.3 1.8 2.0 16 3.5 144 6.5 980 1.2 .6 1.6 5.3 

1.5 4.0 2.2 24 3.9 204 7.0 1,190 1.3 1.2 1.7 7.4 

1.6 5.5 2.3 28 4.3 276 1.4 2.2 

1-7 7 ' 4 2 ' 5 *° *' 8 39° Note.- Same as precedDlscharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

8.1 

7.9 

6.4 

6. a 

6.6

6.6 

6.3 

6.1 

4.9 

3.9

5.2 

6.3 

6.3 

7.2 

7.2

6.6 

2.8 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.5 

1.5

1.5 

1.5 

1.5 

5.6 

12 

10

Hdv.

42 

130 

121 

74 

34

26 

23 

21 

19 

18

18 

18 

18 

18 

29

39 

58 

39 

34 

33

30 

29 

27 

27 

26

26 

25 

25 

25 

24

Dec.

24 

24 

44 

35 

55

54 

53 

66 

50 

46

39 

75 

286 

145 

105

84 

86

76 

64 

62

61 

56 

51 

49 

58

67 

103 

83 

70 

65 

61

Jan.

77 

87 

62 

57 

58

61 

56 

53 

43 

b32

b40 

b45 

b48 

«b43 

ii40

b40 

39 

39 

41 

39

43 

46

37 

b37 

b35

b40

b38 

b37 

37

37

Feb.

36 

37 

40 

48 

59

55 

54 

50 

46 

61

13)3 

75 

58 

58 

54

51 

53 

58 

62 

81

98 

124 

162 

162 

154

158 

157 

150

Month

Octo 

Move 

Oece

Ca

Janui 

Febr 

Marc 

Aprl

Uav

June 

July 

Augu 

Sept

Wa

mber .

inter. ...................................

lendar year 1948 

Eii*y

uftry . 

ter year 1948-49 .......................

Mar.

141 

353 

594 

457 

326

251 

212 

182 

180 

451

961 

713 

439 

324 

272

388 

360 

348 

427 

594

523 

508 

469 

410

375

350 

355 

360

338 

328 

315

Apr.

1, 

1, 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

149.4 

1,076 

2,197

100,445.4

1,424 

2,331 

12,304 

23,831 

17,408 

2,557 

166.7 

63.5 

27.9

63,535.5

Peak discharge (base. 1.400 sec. -ft.).- Mar. 11 (1 a.m

324 

335 

358 

398 

448

502 

538 

535 

602

6!72

773 

824 

840 

872| 

908

956 

030 

010

070 

040

020 

090 

140 

120 

060

976 

920 

868 

840 

762

May

731 

776 

788 

728 

706

703 

717 

706 

654 

619

720 

770 

770 

872 

780

717 

678 

563 

499 

432

324 

335 

358 

365

362

340 

324 

296 

270 

261 

244

Maximum

12 

130 

286

3,000

87 

162 

961 

1,140 

872 

222 

19 

14 

1.7

,1,140

June

222 

204 

182 

173 

162

155 

145 

140 

124 

111

99 

88 

79 

71 

64

58 

54 

52 

49 

42

39 

35 

34 

31 

29

26 

24 

23 

21 

21

July

19 

17 

16 

14

13

11 

9.8 

9.1

7.9 

6.8

5.5

4.6 

4.1 

3.3 

2,9

2.3 

1.9 

1.6 

.9 

.8

1.3 

1.8 

1.8 

1.5 

1.4

1.3 

1.2 

1.1 

1.1 

1.0 

1.7

Aug.

1.6 

1.1 

.8 

.6 

.6

.6 

.7 

.7 

.6 

.7

.7 

.7 

.7 

.6 

14

10 

4.5 

.6 

.8 

.8

.8 

.8

.7 

.7 

.7

.7 

.8 

4.7 

5.5 

4.1 

2.6

Sept.

1.7 

1.3 

1.2

1.0 

.7

.6 

.6 

.8 

.8 

.7

.8 

.8

1.1 

1.0 

.8

.7 

.7 

.6 

1.0 

1.5

1.7 

1.5 

1.3 

.6 

. .5

.5 

.4 

1.0 

1.2 

.8

IM «<»,.. u.an Runoff In Minimum Mean aere.feet

1.5 4.82 296 

18 35.9 2,130 

24 70.9 4,360

1.5 274 199,200

32 45.9 2,820 

36 83.2 4,620 

141 397 24,400 

324 794 47,~270 

244 562 34,530 

21 85.2 5,070 

.8 5.38 331 

.6 2.05 126 

.4 .93 55

.4 174 126,000

. ) 1,450 see. -ft.

Tflnter discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
356 FEATHER RIVER BASIN

Lost Greek near Clipper Mills, Calif.

Location.- Water-stage recorder, lat. 39°34'25", long. 121°08'20", in SE£ sec. 24, T. 20

 N., 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 1949.

Average discharge.- 15 years, 62.2 second-feet.

Extremes. - Maximum discharge during year, 383 second-feet Apr. 22 (gage height, 3.73 feet); 

no now part of day July 19.

1927-41, 1948-49: Maximum discharge, 3,380 second-feet Dec. 10, 1937 (gage height, 

6.80 feet), computed from.peak flow over Lost Creek Dam; no flow July 30, 1940, and 

part of each day July 29, 31, 1940, Aug. 27, 1941, July 19, 1949.

Remarks.- Records fair above 50 second-feet, poor below. Storage in Lost Creek Reservoir

 (capacity, 5,640 acre-feet) above station was 4,030 acre-feet on Sept. 30, 1948, and 

1,450 acre-feet on Sept. 30, 1949. Fprbestown ditch diverts water a quarter of a mile 

above station.

Discharge, in second-feet, water year October 1948 t6 September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

12 

8.6 

6.0 

6.0 

6.2

6.2 

6.5 

6.8 

6.8 

7.0

7.2 

7.5 

7.5 

8.0 

8.0

3.0 

.3 

.3 

.4 

.4

.4 

.4 

.4 

.5 

.5

.5

.5 

.6 

1.8 

4.2 

4.4

Hov.

5,3 

6.0 

6.0 

3.1 

1.4

1.3 

1.3 

1.4 

1.4 

1.3

1.3 

1.3 

1.3 

1.2 

3.6

5.6 

5.5 

5.5 

5.5 

5.5

5.5 

5.6 

5.6 

5.6 

5.6

5.6 

5.6 

5.6 

5.6 

5.6

Dec.

5.6 

5.6 

5.8 

5.6 

5.8

5.8 

5.8 

5.8 

5.6 

5.6

5.6 

6.0 

5.8 

5.6

5.6

5.5 

5.5 

5.3 

5.3 

5.3

5.3 

5.5 

5.5 

5.3 

5.5

5.5 

5.5 

5.5 

5.3 

5.3 

5.3

Jan.

5.5 

5.3 

5.3 

5.3 

5.3

5.3

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

5.1 

5.1 

5.1

5.3 

5.3 

5.3 

5.3 

5.3

5.3 

5.3 

5.3 

5.3 

5.3 

5.3

Feb.

5.3 

5.3 

5.3 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.6 

5.6 

5.6 

5.8

5.8 

5.8 

5.8 

5.8 

5.6

5.5 

5.3 

5.3

Honth

Ooto 

Hove 

Dece

Ca

Janu 

frebr 

Marc 

Apri

June

July 

Ajjgu 

Sept

Wa

lendar year

ter year 1948-49 .......................

Mar.

4.1 

.6 

.4 

.3 

.2

.2 

.2 

.2 

.2

.6

.8

.6 

.4 

.3 

.3

.6 

.5 

.4 

51 

159

132 

129 

105 

86 

77

73 

77 

79 

76 

74 

74

Apr.

77 

83 

94

110 

134

159 

176 

179 

208 

233

262 

276 

276 

269 

306

317 

327 

324 

345 

331

306 

342 

338 

313 

272

252 

233 

226 

211 

199

Secondfoot -days

128.9 

120.9 

172.0

-

161.7 

154.9 

1,202.9 

7,198 

3,038 

370.5 

81.8 

201.4 

301.8

13,132.8

May

187 

202 

196 

176 

159

162 

159 

149 

129 

125

134 

134 

127 

136 

114

100 

90 

76 

73 

54

45 

43 

45 

49 

23

16 

22 

25 

26 

29 

33

Maximum

12 

6.0 

6.0

-

5.5 

5.8 

159 

345 

202 

34 

5.1 

8.6 

14

345

June

34 

24 

23 

22 

24

23 

24 

27 

23 

20

17 

14 

14 

11 

10

9.1 

7.8 

6.8 

3.9 

3.4

3.3 

3.2 

3.0 

2.8 

3,0

3.2 

3.2 

2.7 

2.6 

2.5

July

Minimum

0.3 

1.2 

I 5.3

-

5.1 

5.3 

.2 

77 

16 

2.5 

.7 

1.7 

7.0

.2

2.4 

2.3 

2.6 

2.6 

2.5

2.3 

2.1 

2.0 

1.9

1.6

1.5 

1.2 

1.0 

.7 

.8

2.1 

2.3 

1.0 

1.4 

2.6

3.2 

3.4 

3.6 

3.8 

3.9

4.0 

4.2 

4.4 

4.6 

4.7 

5.1

Aug.

5.1 

4.9 

4.9 

4.9

5.1

5.8

6.0 

5.8

6.0 

6.0

6.2

6.2 

6.5 

5.8 

1.7

1.7 

4.7 

7.8 

7.8 

7.8

7.8 

7.8 

8.9 

8.2 

8.2

8.2 

8.5 

8.2 

8.5 

8.5

a. 8

Mean

4.16 

4.03 

5.55

-

5.22 

5.53 

38.8 

240 

98.0 

- 12.4 

2. 64 

6.50 

10.1

36.0

Sept.

9.4 

9.4 

9.7 

9.4 

9.4

9.4 

9.7 

9.7 

9.7 

8.8

8.8

9.1 

9.1 

9.4 

9.4

9.7 

9.7

11 

12 

13

14

14 

12 

11 

11

9.4 

9.4 

9.7 

8.5 

7.0

Runoff In 

acre-feet

256 

240 

341

-

321 

307 

2,390 

14,280 

6,030 

735 

162 

399 

599

26,060

Peak discharge (base, 270 see.-ft.).- Apr. 22 (10 p.m.) 383 sec.-ft.
FEATHER RIVER BASIN 357

Palermo Canal at Enterprise, Calif.

Location.- Water-stage recorder and Parshall flume, lat. 39°32', long, 121°21', In SW-J- sec, 

b, T. 19 N., R. 6 E., 400 feet downstream from Intake at diversion dam on South Fork 

Feather River, 1 mile upstream from McCabe Creek, and 1 mile southeast of highway bridge 

at Enterprise, Altitude of gage, about 600 feet (from topographic map).

Records, available.- October 1911 to September 1949. 

Average discharge.- 38 years, 18.0 second-feet.

Extremes.- Maximum daily discharge during year, 31 second-feet June 29, 30, July 1, 2, 5-9, 

aa-31, Aug. 1, 2, 9, 10, 15, 16; minimum daily, 9 second-feet Jan. 24, 25.

1911-49: Maximum discharge recorded, 43 second-feet July 25, 1927; no flow for periods in each year except 1939, 1941, 1942, 1944-47, 1949.

Remarks.- Records excellent except those for periods of ice effect, which are good. Canal 

diverts from left bank of South Fork Feather River 1 mile above Enterprise. Water is 

used for irrigation near Qroville.

Cooperation.- Gage-height record collected in cooperation with Oroville-Wyandotte Irrigation District.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

29 

28 

27 

27 

27

27 

27 

27 

28 

29

28 

27 

27 

28 

28

28 

25 

24 

24 

24

24 

24 

23 

23 

23

23 

£3 

22 

24 

22 

21

Nov.

23 

21 

21 

21 

19

17 

16 

15 

14 

14

14 

13 

13 

13 

17

13 

14 

15 

13 

12

12 

11 

11 

11 

11

11 

11 

11 

12 

12

Dec.

12 

12 

14 

14 

14

13

12 

13 

12 

11

10 

12

17 

16 

14

14 

14 

13

12

12

12 

12 

11 

11 

12

13 

14 

14 

13 

13 

12

Jan.

13 

14 

.12 

blO 

b!2

12

11 

11 

10 

bio

bllbll 

bll 

blO 

blO

blO 

9.6 

9.6 

9.9 

9.9

10 

10 

9.6 

b9 

b9

b9.5 

9.6 

9.6 

9.6 

9.6 

9.6

Feb.

9.6 

9.6 

9.9 

10

11

11 

11 

11 

11 

11

14 

13 

12 

12

11

11 

11 

11 

12 

11

11 

12 

12 

12 

12

12 

12

12

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

12 

13 

13 

13 

13

13 

12

12 

12 

13

12 

11 

10 

10

10

10 

10

11 11

11

11 11

12 

12 

11

11 

10 

9.6 

9.6 

9.4 

9.4

Apr.

9.4 

9.4 

9.4 9.4" 

9.4

9.6 

9.4

10 

11 

11

11 

13 

18 

20 

24

23 

23 

22 

22 

22

22 

22 

22 

22 

27

29 

29 

29 

29 

28

Secondfoot-days

791 

431 

398

7,063.8

322.1 

318.1 

348.0 

555.0 

902 

888 

944 

919 

874

7,690.2

May

29 

29 

29 

29 

23

29 

29 

29 

29 

29

29 

29 

30 

29 

29

29 

29 

29

29 

28

27 

29 

30 

30 

30

30 

30 

29 

29 

29 

29

Maximum

29 

23 

17

32

14 

14 

13 

29 

30 

31 

31 

31 

30

31

June

29 

29 

29 

29 

29

29 

29 

29 

30 

30

30 

30 

30 

30 

29

30 

30 

30 

29 

29

29 

29 

29 

30 

30

30 

30 

30 

31 

31

July

31 

31 

30 

30

31

31 

31 

31 

31 

30

30 

30 

30 

30 

30

29 

30 

30 

29 

29

30 

31 

31 

31 

31

31 

31 

31 

31 

31 

31

Minimum

21 

11 

10

0

9 

9.6 

9.4 

9.4 

27 

29 

29 

27 

28

9

Aug.

31 

31 

30 

30 

29

29 

30

30 

31 

31

30 

30 

30 

30

31

31

28 

27 

30 

30

30 

29 

29 

29 

29

29 

29 

29 

29 

29 

29

Mean

25.5 

14,4 

12.8

19.3

10.4 

11.4 

11.2 

18.5 

23.1 

23.6 

30.5 

23.6 

29.1

21.1

Sept.

29 

29 

29 

29 

29

29 

29 

29 

29 

30

30 

30 

29 

29 

29

29 

30 

30 

30 

30

30 

30 

30 

29 

28

28 

28 

28 

28 

28

Runoff In 

ao re-feet

1,570 

855 

789

14,010

639 

631 

690 

1,100 

1,790 

1,760 

1,870 

1,820 

1,730

15,240

b Stage-discharge relation affected by ice. 

947809 O- 51 - 24
358 FEATHER RIVER BASIN 

Middle Fork Yuba River at Milton, Calif.

Location.- Water-stage recorder and concrete spillway control, lat. 39°31'22", long. 122!_ 

SJj'Ul", in SW£ sec. 12, T. 19 N., R. 12 E., at diversion dam of Nevada Irrigation District, at old town site of Milton, 8 miles upstream from South Fork of Middle Fork. 

Altitude of gage, about 5,700 feet (from topographic map).

Drainage area.- 41 square miles.

Records available.- October 1928 to September 1934, October 1935 to September 1949. December'ig25~to September 1928 at site 0.2 mile downstream.

Average discharge.- 19 years (1926-30, 1931-34, 1935-40, 1941-42, 1943-49), 100 second-feet 

(based on combined flow of Middle Fork at this station and Milton-Bowman tunnel at outlet).

Extremes.- Maximum discharge during year, 1,230 second-feet .May 14 (gage height, 1.47 

reet); no flow over dam for long periods.

1925-34, 1935-49: 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. 362) diverts above station to Bowman 

Lake (see p. 368).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

0.0 0 0 5 207 1.0 640 

.19 6 277 1.2 870 

.2 42 7 354 1.4 1,130 

.3 88 8 440 

.4 143 9 535

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

ber.....................................

lendar year 1948

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

O 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

73

193 

285 

242 

207 

214

Secondroot-days

0 

0 

0

5,668.0

0 

0 

0 

1,214 

11,959 

S13 

0 

0 

0

13,786

May

256 

277 

292 

308 

323

354 

371 

346 

285 

380

566 

588 

608 

1,060 

706

717 

516 

339 

285 

221

207 

228 

285 

331 

406

397 

354 

300 

270 

214 

169

Maximum

0 

0 

0

469

0 

0 

0 

285 

1,060 

143 

0 

0 

0

1,060

June

132 

132 

132 

143 

74

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

July

Minimum

0 

0 

0

0

0 

0 

0 

0 

169 

0 

0 

0 

0

0

Aug. Sept.

 .__ Runoff In Mean acre-feet

0 0 

0 0 

0 0

15.5 11,240

0 0 

0 0 

0 0 

40.5 2,410 

386 23,720 

20.4 1,320 

0 0 

0 0 

0 0

37.8 27,350
FEATHER RIVER BASIN 

Middle Fork Yuba. River above Ore'gon Creek, Calif.

359

Location.- Water-stage recorder, lat. 39°23', long. 121°05', in SE£ sec. 28, T. 18 N., 

K. 8 E., 500 feet upstream from Oregon Creek and 2 miles northeast of North San, Juan. 

Altitude Of gage, about 1,450 feat (from topographic map).

Drainage area.- 170 square miles.

Records available.- March 1941 to September 1949.

Extremes.- Maximum discharge'during year, 2,070 second-feet May 14 (gage height, 6.59 

feet); minimum, 23 second-feet Sept. 24.

1941-49: Maximum discharge, 14,200 second-feet Jan. 21, 1943 (gage height, 12.83 

feet), from rating curve extended above 6,000 second-feet by logarithmic plotting; 

minimum, 20 second-feet Sept. 24, 25, 1947.

Remarks.- Records good except those for periods of ice effect or doubtful gage-height 

 record, which are fair, and those for periods of no gage-height record, which are poor.

Milton-Bowman tunnel (seep.362),, above station, has diverted to Bowman Lake since

1928; also small diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

Bay

1 

2 

3

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

2O

21 

22 

23 

24 

25

26 

27 

23 

29 

30 

31

Oct.

32 

31 

32 

32 

34

34 

32 

30 

30 

30

30 

31 

32 

33

34

33 

31 

30 

30 

30

30 

30 

30 

30 

30

30 

30 

30 

30 

35 

35

Nov.

100 

150 

300

150 

100

80 

60 

50 

45 

40

35 

35 

35 

35 

40

40 

60 

50 

45 

45

40 

40 

40 

40 

40

35 

35 

35 

35 

35

Dec.

35 

40 

50 

50 

55

60 

70 

80 

70 

60

60 

100 

500 

150 

100

80 

70 

60 

60 

65

70 

65 

60 

55 

50

60 

70 

65 

65 

65 

70

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May. 

June 

July 

Augu 

Sept

Wa

Jan.

70 

70 

65 

65 

»b65

b60 

b50 

b45 

b40 

35

b50 

b80 

b70 

b65 

60

58 

64 

61 

62 

62

63 

68 

54 

49

51

64 

69 

66 

65 

66 

65

Feb.

68 

69 

73 

78 

82

87 

86 

82

72 

87

172 

96 

78 

84 

78

72 

84 

109 

122 

144

156 

189 

346 

291 

276

279 

270 

262

lendar year 194 8

.

ter year 1948-49 .......................

Mar.

234 

480 

850 

600 

450

350 

312 

279 

257 

380

639 

562 

471 

401 

378

614 

602 

562

602 

618

558 

546 

500 

435 

397

381 

394 

408 

394 

381 

368

Apr.

372 

384 

394 

442 

500

566 

598 

582 

626 

715

870 

912 

923 

972 

1,020

1,100 

1,200 

1,180 

1,160 

1,090

1,140 

1,250 

1,320 

1,260 

1,200

896 

1,020 

945 

870 

760

Secondfoot-days

971 

1,870 

2,510

95,867

1,877 

3,892 

14,403 

26,267 

26,721 

4,973 

1,586 

1,071 

818

86,959

May

774 

880 

840 

806 

792

792 

840 

826 

715 

711

940 

1,130 

1,130 

1,790 

1,520

1,360 

1,220 

912 

797 

706

606 

606 

635 

685

760

816 

774 

694 

602 

558 

504

Maximum

35 

300 

500

3,060

80 

346 

850 

1,320 

1,790 

411 

66 

42 

32

1,790

June

411 ' 

388 

352 

330 

340

252 

225 

215 

198 

187

174 

154 

144

137 

127

120 

116 

116 

106 

99

94 

88 

84 

82

78

77 

72 

70 

69 

68

July

66 

64 

63 

62 

60

59 

58 

57 

56 

56

55 

54 

53 

52

51

50 

49 

48 

48 

47

46 

45 

45 

44 

44

43 

43 

42 

42 

42 

42

Minimum

30 

35 

35

30

35 

68 

234 

372 

504 

68 

42 

30 

24

24

Aug.

42 

41 

40 

39 

38

37 

36 

36 

35 

35

34 

34 

34 

33 

33

33 

32 

32 

32 

32

31 

31 

31 

30 

30

30 

32 

40 

39 

35 

34

Mean

31.3 

62.3 

81.0

262

60.5 

139 

465 

876 

862 

166 

51.2 

34.5 

27.3

238

Sept.

32 

31 

30 

29 

29

28 

28 

31 

31 

29

30 

28 

28 

28 

27

27 

27 

26 

25 

25

25 

25 

25 

24 

25

25 

25 

25 

25 

25

Runoff in 

acre-feet

1,930 

3,710 

4,980

190,200

3,720 

7,720 

28,570 

52,100 

53,000 

9,860 

3,150 

2,120 

1.6ZO

172,500

Peak discharge (base, 1,800 sec.-ft.).- May 14 (10 a.m.) 2,070 sec.-ft.

* Winter discharge measurement. made on this day.

b Stage-discharge relation affected by ice.

Note.- No gage-height record Oct. 25 to Jan. 4, June 28 to Aug. 18; discharge computed on basis of 

records for stations on nearby streams. Doubtful gage-height record Mar. 3-6, Apr. 26-29, May 19 to 

June 26; discharge computed on basis cf doubtful gage-height record and records for stations on 1 nearby streams.
360 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 T , in SW-f sec. 14, 

T. 16 N., R. 6 E., 1 mile upstream from Deer Creek and 2.5 miles northeast of Smartville. Datum of gage, 526.99 feet above mean sea level (levels by Corps of Engineers).

Drainage area.- 1,110 square miles.

Records available.- October 1941 to September 1949. June 1903 to September 1941 (including now oi1 Deer Creek) at site 2 miles downstream, published as Yuba River at Smartville.

Extremes - Maximum discharge during year, 7,500 second-feet May 14, including flow through 

powerhouse; no flow Jan. 23-27, water being stored at dam.

1941-49: Maximum discharge, 81,100 second-feet Jan. 21, 1943, including flow through 

powerhouse, from rating curve extended above 25,000 second-feet on basis of computations 

of flow over spillway by Creager's method; no flow Nov. 8 to De.c. 2, 1941, Jan. 23-27, 

1949, water being stored at dam.

Remarks.- Records excellent above 1,000 second-feet and fair below. Diversions for power 

and irrigation above station. Flow regulated by Lake Spauldlng beginning in 1912 

(capacity, 74,500 acre-feet), Narrows Reservoir beginning in 1941 (capacity, 70,000 

acre-feet), Bowman Lake (see p. 368), 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 1948 to September 1949

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.

205 

295 

295 

290 

285

245 

225 

225 

225 

225

250 

290 

290 

275 

245

230 

230 

225 

195 

225

220 

205 

180 

210 

365

355 

445 

425 

475 

150 

155

Nov.

495

710 

710 

725 

725

725 

725 

725 

510 

375

305 

310 

310 

305 

465

445 

475 

505 

475

350

300 

370 

375 

375 

300

350 

315 

315 

450 

440

Dec.

465 

475 

445 

. 315 

305

475 

570 

525 

470 

570

300 

300 

570 

735 

7?5

735 

826 

991 

935 

920

930 

905 

735 

735 

735

730 

735 

735 

740 

740 

735

Jan.

745 

775 

970 

940 

910

940 

884 

745 

635 

725

725 

725 

725 

720 

720

720 

720 

720 

720 

700

690 

505 

180 

0

0

0 

150 

655 

660 

620 

475

Feb.

505 

650 

655 

655 

650

650 

650 

650 

625

630

624 

1,240 

913 

660 

660

660 

660 

844 

924 

974

1,040 

1,140 

1,590 

1,570 

1,500

1,480 

1,480 

1,430

Month

Octo 

Hove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

h. ......................................

ter year 1948-49 .......................

Mar.

1,370 

2,490 

6,230 

4,640 

3,560

2,760 

2,340 

2,140 

2,000 

2,840

5,870 

4,500 

3,380 

2,800 

2,480

3,370 

3,850 

3,450 

3,750 

3,940

3,570 

3,390 

3,340 

2,830 

2,500

2,280 

2,250 

2,320 

2,260 

2,140 

2,060

Apr.

2,020 

2,080 

2,130 

2,320 

2,660

3,040 

3,360 

3,360 

3,600 

4,050

4,930 

5,430 

5,430 

5,570 

5,790

6,150 

6,650 

6,570 

6,610 

6,270

6,120 

6,650 

6,910 

6,650 

6,380

5,720 

5,720 

5,290 

4,910 

4,460

Secondfoot-days

8,245 

13,960 

20,117

761,534

19,399 

25,709 

96,700 

146,830 

132,610 

37,626 

14,484 

11,655 

8,500

535,835

Peak discharge (base, 7,100 sec. -ft.).- Mar. 3 (3:30 a

May

4,330 

4,670 

4,740 

4,460 

4,270

4,240 

4,370 

4,370 

4,060 

3,760

4,370 

5,080 

5,280 

6,500 

6,580

5,620 

6,280 

4,780 

4,020 

3,830

3,300 

3,060 

3,420 

3,560 

3,710

4,060 

3,830 

3,440 

3,060 

2,880 

2,680

Maximum

475 

725 

991

18,100

970 

1,590 

6,230 

6,910 

6,580 

2,440 

645 

480 

365

6,910

June

2,440 

2,220 

2,040 

1,980 

1,940

2,100 

1,940 

1,820 

1,640 

1,580

1,450 

1,380 

1,270 

1,230 

1,180

1,090 

1,020 

960 

940 

920

864 

767 

720 

655 

600

580 

570 

570 

570 

590

July

Minimum

150 

300 

300

150

0 

505 

1,370 

2,020 

2,680 

570 

310 

350 

210

0

645

550 

420 

505 

405

340 

560 

576 

487 

503

507 

596 

545 

445 

455

455 

310 

455 

475 

480

475 

465 

355 

350 

480

480 

480 

480 

490 

360 

355

Aug.

480 

480 

480 

370 

375

360 

360 

375 

375 

375

375 

375 

360 

360 

380

380 

360 

360 

360 

360

360 

360 

360 

360 

360

355 

350 

355

365 

365 

 365

Mean

266 

465 

649

2,081

626 

918 

3,119 

4,894 

4,278 

1,254 

467 

376 

283

1,468

Sept.

365

360 

360 

360 

360

360 

360 

310 

290 

280

280 

295 

280 

280 

275

280 

245 

245 

280 

275

265 

230 

250 

210 

210

240 

240 

245 

230 

240

Hunoff in 

ao re-feet

16,350 

27,690 

39,900

1,510,000

38,480 

50,990 

191,800 

291,200 

263,000 

74,630 

28,730 

23,120 

16,860

1,063,000

.m. ) 7,260 sec. -ft.; Apr. 23 (8 a.m.) 7,410
FEATHER RIVER BASIN 361 

Yuba River at Marysville, Calif,

Location.- Water-stage recorder, lat. 39°08'40", long. 121°34'35", at Slmpson Lane Bridge 

in Marysville, Yuba County, about 2 miles upstream from mouth. Zero of gage is set to 

datum of Corps of Engineers.

Records available.- October 1940 to September 1949 (1940-43, 1945, low-water periods only) 

in reports or ueological Survey. 1939-49 (1939-43, 1945, low-water periods only) in 

reports of Division of Water Resources, Department of Public Works, States of California.

Extremes.- Maximum daily discharge during year, 7,800 second-feet Mar. 3; maximum gage 

fteignt, 55.01 feet' Mar. 3; minimum discharge, 43 second-feet Aug. 13, 27 (gage height, 

44.08 feet).

1943-44, 1945-49: Maximum daily discharge, 26,000 second-feet Dec. 29, 1945 (gage 

height, 65.78 feet).

1940-49: Minimum discharge recorded, that of Aug. 13, 27, 1949.

Remarks.- Records good except those for March, which are fair. Plow regulated by several 

reservoirs above station. Many diversions above station for power and irrigation.

Cooperation.-. Records collected and prepared in cooperation with Division of Water 

Resources, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7

a

9 

10

11 

12 

13 

14 

15

IS 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

153 

149 

151

151 

143

151 

133 

120 

111 

106

109 

128 

153 

163 

153

133 

137 

. 135 

133 

111

116 

126 

120 

107 

109

198 

213 

292

311 

274 

124

Nov.

143 

394 

321 

444 

.606

666 

714 

714 

718 

615

498 

390 

334 

315 

318

344 

420 

464 

469 

489

420 

368 

358 

361

361

334 

324

321 

315 

347

Dec.

401 

432 

465 

498 

436

514 

531 

S34 

652 

579

518 

401 

527 

849 

918

854 

885 

1,080 

1,090 

1,010

952 

929 

902 

813 

756

760 

1,070 

1,2SO 

1,010 

880 

843

Jan.

338 

981 

992 

1,020 

998

957 

969 

934 

854 

746

760 

770 

770 

770 

765

760 

760

760 

' 770 

784

775 

779 

714 

518 

354

264 

213 

187 

274 

510 

620

Feb.

556 

548 

657 

714 

854

969 

1,030 

1,150 

998 

912

1,790 

1,840 

1,510 

1,250 

975

864 

859 

885 

1,000 

1,130

1,330 

1,380 

1,960 

2,090 

2,020

1,880 

1,880 

1,800

Month

Oo to 

Hove

Deoe

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu

Sept

Wa

mber. ...................................

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

1,700 

2,060 

07,800 

C7.000 

6,160

4,430 

3,380 

2,970 

2,640 

3,240

07,000 

06,800 

05,500 

4,170 

3,420

3,810 

04,400 

04,OOO 

04,000 

04,100

04,200 

03,800 

04,OOO 

03,700 

03,300

03,100 

2,960 

2,950 

2,890 

2,710 

2,600

Apr.

2,460 

2,440 

2,490 

2,570 

2,840

3,180 

3,530 

3,710 

3,830 

4,260

5,070 

5,900 

6,180 

6,290 

6,590

6,740 

7,190 

7,280 

7,220 

7,080

6,660 

6,830 

7,180 

7,190 

6,840

6,220 

5,750 

5,350 

5,030 

4,520

Secondfoot-days

4,713 

12,906 

23,449

806,776

- 22,166 

34,981 

124,840 

158,420 

121,470 

29,343 

4,363 

2,082 

1,798

540,531

May

4,130 

4,270 

4,500 

4,300 

4,050

3,940 

3,990 

4,020 

3,850 

3,470

3,750 

4,440 

4,890 

5,220 

6,320

5,330 

5,660 

4,800 

3,850 

3,640

3,130 

2,810 

2,930 

3,100 

3,830

3,490 

3,500 

3,080 

2,790 

2,560 

2,370

Maximum

311 

716 

1,260

15,900

1,020 

2,090 

7,800 

7,280 

6,320 

2,180 

272 

124 

67

7,800

June

2,180 

1,960 

1,810 

1,670

1,610

1,660 

1,580 

1,490 

1,360 

1,260

1,170 

1,110 

1,030 

936 

845

790 

736 

690 

650 

598

548 

536 

508 

492

476

407 

381 

329 

293 

238

Minimum

July

106 

143

401

106

187 

548 

1,700 

2,440 

2,370 

238 

78 

53 

46

4S

249 

272 

216 

152 

167

131 

102 

130 

164 

158

158 

160 

222 

180 

135

131 

135 

92

84 

104

130 

113 

116 

87 

78

102 

120 

128 

130 

133 

84

Aug.

76 

99 

124 

120 

82

74

72 

66 

67 

65

67 

65 

61 

69 

65

57 

57- 

58 

62 

57

57 

57 

57 

56 

58

57 

56 

62 

53 

53 

53

Mean

152

430 

756

2,204

715 

1,249 

4,027 

5,281 

3,918 

978 

141 

67.2 

59.9

1,481

Sept.

51 

56 

57 

64 

61

64 

60 

65 

65 

66

66 

57 

61 

67 

67

65 

64 

62 

58 

60

58 

60 

61 

58 

55

46 

51 

52 

61 

60

Runoff In 

acre-feet

9,350

25,600 

46,510

1,600,000

43,970 

69,380 

247,600 

314,200 

240,900 

58,200 

8,650 

4,130 

3,570

1,072,000

o Backwater from Feather River; discharge computed on basis of records for Yuba River at Narrows 

Dam plus Deer Creek near Smartvllle.
362 FEATHER RIVER BASIN 

Milton-Bowman tunnel at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 39°28', long. ISO'S?', in sec

 3, T. 18 N., R. 12 E., near upper end of Bowman Lake. Altitude of gage, about. 5,600 

feet (from topographic map).

Records available.- May 1928 to September 1930, October 1931 to September 1949. 

Average discharge.- 20 years (1928-30, 1931-49), 70.3 second-feet.

Extremes.- Maximum dally discharge during year, 251 second-feet June 6; minimum dally, 2.1

 second-feet Sept. 26, 27.

1928-30, 1931:49: Maximum dally discharge, 492 second-feet Feb. 11, 1941; minimum 

dally, 0.4 second-foot Oct. 7, 1944.

Remarks.- Records good. Tunnel diverts from Middle Fork Yuba River at Milton, In sec. 12, 

T. 19 N., R. 12 E., and discharges into Bowman Lake. During low and medium stages practically entire flow of Middle Pork Yuba River is diverted.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by Nevada 

irrigation District.

Discharge, in second-feet, water year October 1948 to September 1949

Day

Z

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

13 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

4.1 

3.7 

3.7 

3.9

3.9 

4.1 

4.1 

4.1 

4.1

4.1 

4.1 

5.4 

5.7 

5.7

5.7 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.4

5.4 

5.4 

5.4 

5.4 

5.2 

5.2

Nov.

7.4 

23 

40 

26

17 

14 

11 

10 

9.6

9.2 

8.9 

8.6 

8.2 

8.9

8.9 

9.2. 

8.9 

9.2 

8.9

8.6 

8.6 

8.6 

8.6 

8.6

8.6 

8.2 

8.2 

8.0 

8.0

Dec.

7.6 

8.0 

3.2 

8.6

3.6 

3.6 

8.6 

8.6 

3.2

8.0 

8.6 

11 

9.9 

9.6

9.2 

9.2 

8.9 

8.6 

8.6

3.2 

3.2 

3.2 

8.0 

8.0

8.2 

8.9 

8.6 

8.6 

8.6 

8.6

Jan.

8.9 

3.9 

3.6 

3.6 

3.2

3.2 

3.2 

8.2 

3.2 

3.2

8.0 

8.0 

8.0 

8.0 

8.2

8.0 

8.0 

3.0 

8.2 

8.2

3.2 

3.6 

3.6 

8.2 

3.0

8.0 

8.0 

8.0 

8.0 

8.0 

8.0

Feb.

8.0 

3.0 

8.6 

8.6 

3.6

3.6 

3.9 

3.0 

7.6 

8.0

3.9 

3.2 

7.6 

7.6 

7.6

7.6 

8.0 

8.0 

3.2 

8.2

3.6 

3.6 

9.2 

9.2 

9.2

9.6 

9.6 

10

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

10 

11 

11 

9.9 

9.6

9.9 

10 

10 

10 

10

11 

11 

11 

11 

11

11 

11 

12 

13 

13

14 

14 

14 

13 

13

13

14 

16 

16 

16 

16

Apr.

Secondfoot -day s

151.1 

337.9 

266.3

28,316.4

254.4 

236.8 

375.4 

2,438 

4,571 

3,036 

282.2 

139.1 

90.5

12,228.7

16 

17 

19 

22 

27

33 

40 

45

53 

65

71 

73 

74 

78 

30

82 

83 

33 

33 

32

84 

87 

87 

87

155

250 

154 

154 

152 

152

May

152 

152 

152 

152 

152

150 

150 

150 

147 

147

152 

154 

154 

 159 

156

156

152 

147 

143 

143

143 

141 

143 

143 

143

145 

145 

141 

319 

136 

132

Maximum

5.7 

40

11

456

8.9

10 

16 

250 

159 

251 

23 

6.4 

4.3

251

June

130 

130 

130 

128 

210

251 

235 

205 

184 

174

154 

130 

116 

103 

92

82 

71 

66 

62 

56

50 

46 

41 

39 

36

21 

13 

26 

26 

24

Minimum

July

23 

21 

19 

13 

17

15 

11 

6.2 

5.7 

4.7

4.5 

4.3 

4.3 

4.3 

4.5

6.2 

7.0 

7.4 

7.4 

7.4

7.4 

7.4 

11 

9.9 

8.2

7.4 

7.0 

6.3 

6.4 

6.4 

6.4

3.7 

7.0 

7.6

3.5

8.0 

7.6 

9.6 

16 

132 

13 

4.3 

3.3 

2.1

2.1

Aug.

6.4 

6.4 

6.0 

5.7 

5.2

5.2 

5.1 

4.7 

4.7 

4.7

4.7 

4.7 

4.5 

4.5 

4.3

4.3

4.1 

3.9 

3.7 

3.5

3.5 

3.3. 

3.3 

3.3 

3.3

3.3 

3.5 

5.0 

5.2 

4.7 

4.5

Mean

4.87 

11.3 

8.59

77.4

8.21 

3.46 

12.1 

32.9 

147 

101 

9.10 

4.49 

3.02

33.5

Sept.

4.3

4.1 

3.7 

3.5 

3.5

3.3 

3.1 

3.3 

3.3 

3.3

3.1

3.1 

3.3 

3.3 

3.1

3.1 

3.1 

3.1 

2.9 

2.9

2.7 

2.6 

2.6 

2.4 

2.2

2.1 

2.1 

2.2 

2.6 

2.6

Runoff In 

acre-feet

300 

670 

528

56,170

505 

470 

745 

4,930 

9,070 

6,020 

560 

276 

180

24,250
FEATHER RIVER BASIN 363

Oregon Creek near North San Juan, Calif.

Location.- Water-stage recorder, lat. 39°24", long, 121°05', In SW£ sec. 22, T. 18 N., R. 

8 K. , 1 mile upstream-from mouth and 3 miles northeast of North San Juan. Altitude 

of gage, about 1,500 feet (from topographic map).

Drainage area.- 35.1 square miles.

Records available.- October 1933 to September 1949. October 1910 to-September 1933 at 

sire U.Y mile downstream.

Average discharge.* 38 years (1911-49), 73.2 second-feet.

Extremes.- Maximum discharge during year, 385 second-feet Mar. 2 (gage height, 4.97 feet); 

minimum, 1.9 second-feet Sept. 24, 25 (gage height, 1.52 feet).

1910-49: Maximum discharge observed, about 4,000 second-feet Mar. 25, 1928 (gage 

height, 9.5 feet, site and datum then in use), from rating curve extended above 600 

second-feet; minimum, 0.7 second-foot-on several days in July, August 1931, September 

1934.

Remarks.- Records excellent except those for periods of Ice effect, which are fair, and 

those for period of no gage-height record, which are poor. Small diversions above 

statlop for irrigation and mining.

Revisions (water years).- W 861: 1927fM)', 1928.

Rating table, water year 1948-49, except periods of Ice effect 

(gage height, In feet, and discharge. In second-feet)

1.5 1.6 1.9 12 2.6 41 3.6 128 

1.6 3.2 2.0 16 2.8 52 4.O 185 

1.7 5.5 2.2 24 3.0 67 4.4 254 

1.8 8.5 2.4 32 3.3 94 4.8 342

Discharge, In seoona-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3.6 

3.6 

3.6 

3.8 

4.3

4.0 

3.6 

3.6 

3.6

3.4

3.6 

3.6 

3.8 

4.0 

4.0

4.O 

3.8 

3.6 

3.6 

3.8

3.8 

3.8 

3.6 

3.6 

3.6

3.6 

3.8 

3.8 

4.5 

5.5 

5.0

Nov.

25 

31 

60 

22 

13

10 

8.5 

7.8 

7.2 

6.9

6.6 

6.6 

6.3 

6.3 

10

11 

18 

12 

10 

9.8

8.5 

8.2

7.8 

7.5 

7.2

7 

6.5 

6.5 

6.5 

6.5

Dec.

6.5 

6.5 

7 

8 

9

9.5 

9 

9 

9 

8.5

8 

25 

150 

50 

35

25

20 

18 

15 

13

13 

12 

11 

11 

12

13

14 

15 

14 

13 

14

Jan.

20 

19 

18 

17 

16

15 

13 

11 

9 

9

11 

15 

13 

12 

11

11 

11 

11 

11 

12

12 

12 

11 

9

11

11 

1O 

10 

10

10 

11

Feb.

11 

10 

12 

12 

13

14

15 

13 

14 

22

45 

23 

18 

16 

15

15 

18 

22 

25 

32

34 

58 

84 

92 

82

82 

80 

78

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1946 .......................

ter year 1948-49 .......................

Mar.

73 

197 

309 

201 

144

109 

1OO 

89 

85 

138

250 

176 

145 

126

117

212 

203 

182 

207 

243

212 

195 

166 

138 

126

116 

123 

122 

115 

112 

107

Apr.-

112 

116 

120 

137 

160

180 

193 

193 

207 

233

272 

283 

281 

287 

296

296 

298 

292 

276 

254

 246 

252 

250 

239 

221

204 

191 

182 

170 

154

Secondfoot-days

119.5 

360.2 

583.0

23,623.0

382 

955 

4,838 

6,595 

2,371 

46O.2 

143.7 

87.7 

74. 0

16,969.3

Peak discharge (base, 410 sec. -ft. .- Mo peak above ba

May

141 

144 

138 

128 

118

114 

HO 

1O5 

96

87

84 

84 

83 

88 

80

73 

68 

61 

67 

62

55 

SO 

46 

42

41

38 

36 

34 

33 

33 

32

Maximum

5.5

60 

150

842

20 

92 

3O9 

298 

144 

30 

7.8 

3.6 

2.8

309

June

30 

28 

26 

24 

22

21 

21 

20 

19 

18

16 

16 

15 

14

13

13 

12 

13 

14 

12

11 

10 

10 

10 

9.5

8.8 

8.8 

8.8

8.5 

7.8

July

7.8 

6.9 

6.0 

6.3 

6.0

6.3 

5.5 

5.5 

5.5- 

5.5

5.O 

4.8 

4.8 

4.5 

' 4.5

4.3 

4.3 

4.0 

3.8 

3.8

3.8' 

3.6 

3.6 

3.6 

3.6

3.4 

3.4 

3.4 

3.2 

3.4 

3.6

Aug.

3.6 

3.2 

3.2 

2.8 

2.7

2.7 

2.7 

2.8 

2.8 

3.0

3.0 

3.0 

3.0 

3.0 

3.2

2.8 

2.8 

2.8 

2.8 

2.8

3.2 

2.2 

2.5 

2.3 

2.5

2.3 

2.3 

3.0 

3.2 

2.8 

2.7

Sept.

2.5 

2.3 

2.2 

2.3 

2.3

2.3 

2.5 

2.5 

2.8 

2.7

2.7 

2.7 

2.7 2.8- 

2.8

2.7 

2.7 

2.7 

2.7 

2.5

2.3 

2.3 

2.3 

2.2 

2.0

2'.2 

2.2 

2.3 

2.3 

2.5

Minimum Mean J~M

3.4 

6.3 1 

6.5 1

2.0 ' 

8.8

237 

714 

1,160

3.0 64.5 46,860

9 12.3 758 

10 34.1 1,890 

73 156 9,600 

112 220 13,08O 

32 76.5 4,700 

7.8 15.3 913 

3.2 4.64 285 

2.2 2.83 174 

2.-0 2.47 147

2.0 46.5 33,660

se.

.- No gage-height record Nov. 26 to Jan. 4; discharge computed on basis of weather records and 

records for nearby streams. Stage-discharge relation affected by Ice Jan. 5 to Feb. 8, Feb. 13-17.
364 FEATHER RIVER BASIN

North Fork Yuba River below Goodyears Bar, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 120°56', in SW-fc sec. 11, T. 19 N., R. 

9~~E77~3.5 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 Novemebr 1937, December 1938 to September 1949.

Average discharge.- 16 years (1931-37, 1939-49), 692 second-feet.

Extremes.- Maximum discharge during year, 3,150 second-feet May 14 (gage height, 7.80 

reetj; minimum, 103 second-feet Sept. 25.

1930-49: Maximum discharge, 26,000 second-feet Dec. 11, 1937 (gage height, 19.0 

feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis of 

drift-velocity measurement at 18,000 second-feet; minimum, 69 second-feet Aug. 26, 1931.

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

poor. Several small diversions above station for irrigation and mining.

Revisions (water years),.- W 1041: 1944.

Rating table, water year 1943-49 (gage height, in feet, 

and discharge, in seoond-feet)

1.5 103 2.7 255 4.5 780 6.5 1,960 

1.8 132 3.0 308 5.0 1,010 7.0 2,380 

2.1 166 3.5 420 5.5 1,290 7.5 2,850 

2.4 208 4.0 585 6.0 1,600 8.0 3,370

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

21 

2B 

29 

30 

31

Oct.

142 

141 

141 

144 

150

145 

141 

139 

138 

136

138 

138 

139 

146 

147

141 

138 

135 

135 

135

135

133 

132 

133 

134

133 

132 

132 

152 

146 

150

Nov.

418 

431 

689 

284 

208

186 

172 

158 

159 

155

154 

151 

150 

146 

172

174 

192 

164 

170 

162

155 

154 

155 

155 

153

152 

145 

148 

147 

146

Dec.

145 

146 

175 

155 

200

182 

186 

185 

160 

150

150 

200 

330 

250 

200

 170

Jan.

L 200

186 

179 

172 

160 

150

130

Feb.

130

, 150 

' 300

Month

Goto 

Hove 

Dece

Ca

janu 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

Mar.

250 

400 

600 

500 

450

400 

370 

350 

346 

482

676 

592 

498 

450 

453

692 

684 

692

752 

720

672 

664 

585 

518 

472

460 

512 

536 

498 

482 

456

Apr.

466 

489 

522 

610 

716

816 

861 

879 

1,010 

1,260

1,500 

1,530 

1,540 

1,640 

1,730

1,900 

2,020 

2,040 

2,020 

1,930

2,060 

2,220 

2,250 

2,170 

2,020

1,910 

1,850 

1,730 

1,570 

1,460

Secondfoot -day a

4,321 

6,005 

5,534

234,576

T 4,577 

5,200 

16,212 

44,719 

50,630 

17,457 

6,154 

4,293 

3,421

168,523

May

1,510 

1,670 

1,640 

1,550 

1,530

1,560 

1,600 

1,590 

1,440 

1,530

1,860 

2,030 

1,970 

2,900 

2,420

2,420 

2,060 

1,650 

1,500 

1,340

1,240 

1,270 

1,340 

1,410 

1,530

1,560 

1,510 

1,400 

1,290 

1,210 

1,100

Maximum

150 

689

4,940

752 

2,250 

2,900 

1,000 

267 

166 

127

2,900

June

1,000 

960 

910 

920 

915

897 

892 

848 

798 

760

720 

668 

620 

582 

546

508 

472 

450 

423 

402

375 

355 

342 

328 

318

308 

295 

288 

281 

276

July

267 

258 

252 

244 

241

239 

233 

226 

222 

217

210 

204- 

199 

199 

194

189 

185 

182 

179 

176

175 

175 

172 

170 

169

167 

165 

164 

160 

160 

161

Aug.

160 

155 

151 

148 

145

144 

143 

143 

143 

143

143 

141 

140 

136 

135

135 

133 

132 

130 

128

121 

128 

127 

125 

125

125 

128 

166 

148 

136 

130

Minimum Mean

132 139 

145 200 

179

132 641

148 

186 

523 

466 1,491 

1,100 1,633 

276 582 

160 199 

125 138 

105 114

105 462

Sept.

127 

125 

122 

120 

118

117 

117 

123 

124 

119

118 

117 

117 

114 

113

112 

112 

109 

108 

107

107 

106 

105 

105 

106

108 

108 

113 

114 

110

Runoff In 

acre-feet

8,570 

11,910 

10,980

465,300

9,080 

10,310 

32,160 

88,700 

100,400 

34,630 

12,210 

8,520 

6,790

334,300

Peak discharge (base, 3,200 sec. -ft.).- No peak above base.

Note.- No gage-lielBht record Dec. 9 to Jan.^S, Jan. 9 to Mar. 6; discharge computed on basis of 

records for stations on nearby streams.
FEATHER RIVER BASIN 365

North Pork Yuba River at Colgate diversion dam, Calif.

Location.- Water-stage recorders, lat. 39°23', long. 1218 09'', near center of sec. 25, T.

 iy N., R, 7 E.; one recorder 200 feet upstream from Colgate diversion dam, another at 

intake of Colgate tunnel; both 1.5 miles upstream from Middle Pork Yuba River and 1.5 

miles downstream from Bullards Bar Dam. Altitude of gages, about 1,250 feet (from 

topographic map).

Drainage area.- 484 square miles.

Records available.- December 1940 to September 1949.

Extremes.- Maximum discharge during year, 5,060 second-feet Apr. 23; minimum daily, 20 

second-feet July 30.

1940-49; 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;' minimum daily, that of July 30, 1949.

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 above station.

Cooperation.- Discharges for Colgate tunnel and through Bullards Bar powerhouse July 20

 to Sept. 30 furnished by Pacific Gas & Electric Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

5 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

37 

26 

29 

30 

31

Oct.

252 

245 

234 

231 

231

188 

168 

173 

173 

168

168 

167 

165 

121 

78

80 

78 

80 

83 

80

80 

80 

80 

83 

83

110 

104 

102 

109 

73 

73

Nov.

369 

484 

523 

523 

523

511 

511 

478 

332 

207

207 

137 

80 

81 

373

471 

271 

145 

159 

81

82 

145 

154 

158 

84

105 

84 

84 

228 

234

Dec.

227 

222 

233 

71 

76

225 

346 

307 

244 

266

221 

313 

640 

799 

568

517 

516 

516 

516 

516

505 

347 

211 

216 

72

288 

515 

372 

222 

222 

291

Jan.

517 

483 

505 

505 

494

483 

278 

72 

69 

261

297 

298 

296 

296 

63

60 

288 

287 

288 

283

284 

62 

62 

277 

279

279 

274 

278 

58 

58 

279

Feb.

284 

287 

289 

283 

128

64 

344 

481 

481 

459

438 

408 

190 

229 

263

258 

292 

400 

371 

362

362 

380 

450 

483 

483

494 

494 

505

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194£

St......................................

ter year 1948-49 .......................

Mar.

505 

505 

576 

1,280 

1,200

1,010 

908 

843 

804 

1,060

2,280 

1,910 

1,460 

1,200 

1,080

1,570 

1,870 

1,780 

2,030 

2,090

1,850 

1,760 

1,590 

1,350 

1,180

1,080 

1,100 

1,180 

1,140 

1,080 

1,030

Apr.

1,020 

1,060 

1,090 

1,260 

1,490

1,780 

2,050 

1,990 

2,220 

2,660

3,310 

3,550 

3,520 

3,630 

3,850

4,030 

4,400 

4,380 

4,430 

4,180

4,140 

4,510 

4,690 

4,400 

4,270

3,830 

3,700 

3,430 

3,160 

2,870

Secondfoot-days

4,140 

7,824 

10,600

462,180

8,313 

9,962 

40,301 

94,900 

84,020 

27,005 

9,488 

5,884 

4,831

307,268

May

2,820 

3,110 

3,160 

2,930 

2,840

2,820 

2,930 

2,910 

2,640 

2,510

3,010 

3,490 

3,280 

4,400 

3,990

3,640 

3,490 

2,760 

2,470 

2,250

1,910 

2,100 

2,100 

2,100 

2,200

2,300 

2,200 

2,100 

2,010 

1,820 

1,730

Maximum

252 

523 

799

11,500

517 

505 

2,280 

4,690 

4,400 

1,560 

507 

330 

180

4,690

June

1,560 

1,480 

1,480 

1,390 

1,390

1,320 

1,320 

1,250 

1,250 

1,110

1,050 

997 

946 

891 

842

754 

720 

671 

650 

646

632 

588 

512 

576 

552

524 

516 

469 

423 

496

July

507 

376 

392 

298 

436

416 

499 

490 

359 

449

430 

498 

353 

326 

325

195 

85 

216 

224 

216

220

216 

35 

85 

224

264 

264 

486 

486 

20 

48

Minimum

73 

80 

71

71

58 

64 

505 

1,020 

l',730 

423 

20 

149 

127

20

Aug.

156 

323 

330 

292 

196

207 

204 

196 

190 

183

183 

183 

183 

183 

180

180 

180 

180 

180 

180

179 

173 

166 

163 

157

153 

149 

149 

153 

173 

180

Mean

134 

261 

342

1,263

268 

356 

1,300 

3,163 

2,710 

900 

306 

190 

161

842

Sept.

180 

180 

180 

180 

176

160 

150 

145 

147 

157

157 

163 

157 

157 

155

145 

144 

140 

133 

127

150 

172 

172 

172 

172

172 

172 

172 

172 

172

Runoff In 

acre-feet

8,210 

15,520 

21,020

916,700

16,490 

19,760 

79,940 

188,200 

166,700 

53,560 

18,820 

11,670 

9,580

609,500

Note - Ho gage-height record at Intake of Colgate tunnel May 21 to Sept. 30, no gage-height record 

above diversion dam July 20 to Sept. 30; discharge Is flow at Bullards Barar powerhouse.
366 FEATHER RIVER BASIN

South Fork Yuba River near Cisco, Calif.

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 1949.

Extremes.- Maximum discharge during year, 1,860 second-feet May 14 (gage height, 7.38 

TeeTJT minimum, 3.6 second-feet Nov. 27.

1942-49: Maximum discharge, 6..080 second-feet Jan. 21, 1943 (gage height, 12.35 

feet, former site), from rating curve extended above 2,100 second-feet by logarithmic 

plotting; minimum, 0.8 second-foot Oct. 5-8, 1945.

Remarks.- Records excellent except those for periods of ice effect or no gage-height record, which are fair. Low flow regulated by Lake Van Norden.

Ratine table, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

2.4

3.5 

4.0 

4.5

122

189

322

485

5.0 

5.6 

6.0

670

915

1,100

1,410

1,630

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

15 

14 

14 

14 

14

14 

14 

14 

13 

13

14 

13 

14 

14 

14

13 

13 

13 

13 

13

13 

13 

13 

13 

13

14 

16 

17 

18 

18 

18

Nov.

42 

55 

153 

43 

30

27 

26 

22 

21 

23

20 

20 

20 

18 

*20

20 

19 

16 

14 

15

7.3 

6.2 

6.2 

6.2 

6.5

6.5 

5.4 

5.2 

4.9 

a4.5

Dec.

a4 

a4 

a5 

a4 

as

as 

a6 

a6 

a5 

as

a7 

8.5 

bll 

blO 

b9

9.6 

9.6 

9.6 

9.6 

10

b9.5 

b9 

b8 

b8 

b9

b9 

b9.5 

b9.5 

b9.5 

9.9 

9.9

Jan.

b9 

(*) 

b8

Feb.

b9

15 

16 

18 

18

18 

19 

22 

22 

22

23 

22 

23

Month

Octo 

Move 

Deoe

Ca

Janu 

Febri 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

Lendar year 1948 

Gtry

ter year 1948-49 .......................

Mar.

24 

25

b30 

b25 

22

20 

20 

20 

20 

20

30 

26 

20 

22 

23

*26 

22 

30 

36 

32

32 

36 

34 

36 

47

30 

43 

51 

65 

51 

44

Apr.

45 

53 

61

89 

130

172 

213 

226 

286 

381

475 

514 

532 

572 

624

718 

726 

722 

706 

714

838 

862 

862 

806

730

902 

858 

714 

598 

594

Secondfoot-days

439 

682.9 

243.7

64,984.6

264 

382 

962 

15,723 

22,729 

4,246 

1,322 

1,172 

938

49,103.6

May

738 

742 

698 

722 

738

770 

778 

702 

778 

782

1,000 

1,090 

1,100 

1,600 

1,020

1,070 

802 

576 

475 

410

410 

532 

651 

706 

718

726 

579 

543 

496 

431 

346

Maximum

18 

153 

11

1,410

23 

65 

902 

1,600 

349 

55 

48 

41

1,600

June

319 

334 

278 

349 

349

340 

310 

259 

233 

194

182 

156 

137 

117 

101

81 

68 

58 

55 

48

40 

35 

31 

28 

31

28 

25 

22 

20 

18

July

18

16 

15 

14 

13

39 

48 

47 

46 

45

45 

44 

43 

54 

55

55 

54 

52 

51 

51

50 

49 

49 

48 

48

47 

46 

46 

45 

45 

44

Minimum

13 

4.5 

4

4

20 

45 

346 

18 

13 

26 

13

4

Aug.

Maan

14.2 

22.8 

7.86

178

8.5 

13.6 

31.0 

524 

733 

142 

42.6 

37.8 

31.3

135

44 

43 

41 

40 

40

45 

45 

44 

44 

43

41 

40 

40 

39 

37

34 

33 

31 

29 

32

32

31 

28 

27 

26

26 

43 

48 

43 

42 

41

Sept.

41 

40 

40 

40 

40

39 

39 

39 

38 

39

39 

38 

37 

37 

36

34 

34 

34 

35 

32

31 

30 

29 

18 

14

13 

13

13 

13 

13

Runoff in 

acre-feet

871 

1,350 

483

128,900

524 

758 

1,910 

31,190 

45,080 

8,420 

2,620 

2,320 

1,860

97,390

Peak discharge (base, 1,500 sec.-ft.).- May 14 (5:30 a.m.) 1,860 sec.-ft. 

* Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

station near Washington.

b Stage-discharge relation affected by ice.
FEATHER RIVER BASIN 367

South Fork Yuba River near Washington, Calif.

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). Prior to Oct. 1, 1948, waterstage recorder at site 0.8 mile downstream at different datum.

Drainage area.- 197 square miles.

Records available.- October 1948 to September 1949. March 1942 to September 1948 at site 

u.b mile downstream.

Extremes.- Maximum discharge during year, 2,060 second-feet May 16 (gage height, 9.43 

t'eet); minimum, 15 second-feet July 4-6.

1942-49: 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, 14 second-feet Sept. 15, 16, 1948.

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are fair. Flow regulated by Lake Spaulding (capacity, 70,500 acre-feet), 

Bowman Lake (see p.368), and by many smaller reservoirs. Diversion for power and 

irrigation above station.

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

4.0 9.5 5.0 115 6.8 510 

4.1 16 5.4 173 7.4 740 

4.4 45 5.8 244 8.O 1,040 

4.7 77 6.3 362

Discharge, In second-feet, water year October 1948 to September 1949 ,

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

18 

18 

18 

19 

21

20 

20 

18 

17

17

18 

18 

18 

20 

21

20 

18 

18 

19 

20

21 

21 

21 

20 

20

22 

22 

21 

29

28 

28

Nov.

89 

82 

123 

51

38

32 

28 

26 

25 

24

24 

22 

22

21 

33

32 

46 

35

34

33

29 

27 

29 

27 

26

27 

26 

25 

25 

26

Dec.

26 

26 

40 

33 

42

43 

47 

58 

52 

49

45

81 

200 

85 

66

57 

55 

50 

48 

49

54 

50 

46 

44 

40

44 

53 

46 

44 

43 

44

Jan.

56 

50 

b42 

b44 

b44

44 

50 

45 

35 

b35

b38 

b40 

b38 

35 

33

*31 

31 

30 

32 

32

31 

34 

d32 

d30 

d30

d30 

d30 

d30 

d30 

d30 

d30

Feb.

d30 

d30 

d32

33 

37

38 

40 

41 

40 

44

50 

100 

45 

35 

35

40 

45 

50 

50 

55

55

80 

125 

120 

125

125 

125

110

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

apy

ter year 1948-49 .......................

Mar.

100 

180 

250 

200 

150

130 

110 

100 

100 

140

200 

170 

140 

130 

140

280 

226 

220 

240

213

192 

199 

162 

139 

125

121 

139 

146

128 

129 

116

Apr.

119 

126 

130 

162 

198

228 

251 

242 

295

344

402 

387 

376 

402 

405

420 

420 

403 

390

373

405 

417 

411 

337 

405

432 

411 

387

370 

339

Secondfoot -days

629

1,087 

1,660

96,578

1,122 

1,735 

5,015 

10,042 

11,161 

2,044 

543 

598 

552

36,188

May

339 

324 

314 

307 

302

300 

298 

290 

275 

270

281 

339 

359 

459 

324

571 

900 

488 

365

307

195 

254 

447 

540 

559

592 

364 

291 

223

166 

118

Maximum

29 

123 

200

2,870

56 

125 

280 

432 

900 

233 

35 

30 

20

900

June

122 

102 

98 

82 

187

233 

197 

147 

83 

67

62 

60 

64 

59 

54

47 

38 

35 

34 

32

28 

26 

24 

24 

23

21 

20 

35 

22 

18

July

16 

16 

16 

15 

15

16 

16 

16 

16 

16

17 

17 

17 

17

17

17

17 

17 

17 

17

17 

17 

17 

18 

18

18 

18 

19 

19 

35 

19

Aug.

19 

19 

19 

18 

18

18

19 

19 

19 

19

21 

21 

19 

19 

19

19 

18 

18 

18 

18

17 

18 

18 

18 

17

17 

19 

30 

25 

22 

20

Sept.

20 

19 

19 

. 18 

18

18 

18 

19 

19 

19

19 

19 

19 

19 

19

19 

20 

18 

17 

17

17 

16 

16 

16 

17

18 

19 

20 

20 

20

Mini Mean *£%£

17 20.3 1,250 

21 36.2 2,160 

26 53.5 3,290

14 264 191,600

30 36.2 2,230 

30 62.0 3,440 

100 162 9,950 

119 335 19,920 

118 360 22,140 

18 68.1 4,05O 

15 17.5 1,080 

17 19.3 1,190 

16 18.4 1,090

15 99.1 71,790

* Winter discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for station at former site. 

Note.- No gage-height record Feb. 11 to Mar. 16; discharge computed on basis of records for station 

at former site; and July 7-14; discharge computed on basis of records for station near Cisco.
368 FEATHEK RIVER BASIN

Bowman Lake near Granlteville, Calif.

Location.- Staff gage, .1st. 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 Granltevllle. Datum of gage is 5,000.0 

feet above mean sea level (levels by Nevada Irrigation District); gage readings have 

been reduced to elevations above mean sea level.

Drainage area.- 30 square miles.

Records available.- December 1926 to September 1949.

Extremes.- Maximum contents observed during year, 63,500 acre-feet June 30 (elevation, 

5755771 feet); minimum observed, 2,100 acre-feet Mar. 12 (elevation, 5,440.0 feet).

192,6-49: Maximum contents observed, 70,500 acre-feet June 16, 17, 1937, June 1, 1943 

(elevation, 5,565.9 feet); contents less than 1,000 acre-feet and, therefore, doubtful 

at times during 1926, 1928-31, 1933-35, 1937, 1939, 1944.

Remarks.- Lake is formed by one rock-fill and one concrete-arch dam; completed and storage 

began in November 1926. Capacity, 68,200 acre-feet between elevations 5,400 feet (bottom 

of outlet tunnel) and 5,563 feet (crest of concrete-arch dam) above mean sea level. 

Plashboards are occasionally added, increasing elevation to 5,564.5 feet and capacity 

to 69,400 acre-feet. Lake receives water from Middle Pork Yuba River through Milton- . 

Bowman tunnel (see p. 362), and releas.es it through Bowman-Spaulding Canal (see p. 370) 

which conveys it to reservoirs of Pacific Gas & Electric Co. Water is eventually used 

for irrigation by Nevada Irrigation Dl-strlct. Record of contents, computed from gage 

readings made at odd times, shows total contents, all of which is available for release.

Cooperation.- Record of gage heights furnished by Nevada Irrigation District.

Contents, in acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct.

47,600

47,100

46,600

46,100

45,700

45,200

44,800

44,500

44,000

43,400

43,000

42,600

42,200

41,800

41,200

40,800

40,400

39,900

39,300

38,700

38,200

37.8OO

37,300

36,900

36,500

36,100

35,700

35,200

34,800

34,300

34,000

Nov.

33,600

33,300

33,100

32,800

32,500

32,200

32,000

31,700

31,300

31,000

30,700

30,300

29,700

29,200

28,700

28,300

28,000

27,500

27,000

26,600

26,200

23,700

25,100

24,600

24,100

23 , 600

23,000

22,600

22,200

21,800

-

Dec.

21,300

20,800

20,400

20,000

-

_

-

-

17,800

17,400

_

-

-

-

-

-

-

-

-

-

_

-

-

-

-

_

-

-

-

-

10,000

Jan.

_

-

-

-

-

_

8,490

-

_

-

_

-

-

-

-

7,440

-

5,000

-

-

.

-

-

-

-

3,000

-

-

-

-

-

Feb. Har.

2,100

Apr.

_

_

_

-

.

_

_

-

_

.

10,600

-

.

_

_

«

-

16,400

_

_

-

20,900

_

-

23,400

.

-

May

_

_

_

-

30,000

_

_

33,000

_

36,600

-

.

_

46,300

.

-

__

_

_

48,400

-

.

50,-600

_

_

_

-

June

54,600

_

55,400

-

.

58,600

59,400

59,600

60,600

61,200

61,800

62,100

62,400

62,500

62,600

62,800

.

63,000

63,200

63,200

63,300

63,400

_

63,500

July

63,400

63,100

62,800

62,500

-

61,900

61,600

61,000

60,500

60,200

59 ,800

59,000

58,600

58,100

57,800

57,500

57,000

56,000

55,600

54,800

54,500

54,200

53,800

.

53,000

52,400

52,000

51,800

51,300

Aug.

50,400

49,900

49,600

49,200

48,800

48,300

47,800

47,000

46,400

46,100

45,700

45,100

44,600

.

43,700

43,300

42,800

42,200

41,700

40,900

40,300

39,600

39,300

39,000

38,600

38,100

37,300

Sept.

36,900

36,500

36,100

35,700

35,200

_

34,500

34,000

33,400

33,000

32,300

31,300

30,900

30,500

29,700

29,200

28,300

27,800

27,300

26,800

26,300

25,800

24,800

24,200

23,800

Monthly elevation and contents, water year October 1948 to September 1949

Date

Dec. 31........ ..........

Calendar year 1948....

Sept. 30.. ................

Water year 1948-49....

Elevation 

(feet)

5,469.5

_

5,499.7

.

Contents 

(a ere- feet)

48 , 000

21,800

10,000

-

e2,200

el, 600

63,500

23,800

-

Change in contents 

during month 

(acre-feet)

_

-14,000

-12,200

-11,800

+1,360

-7,700

-700

+500

+22,100

+29,600

+9,700

-12,200

-14,000

-13,500

-24,200

e Interpolated or computed on basis of Inflow and outflow records.
FEATHER RIVER BASIN 

Canyon Creek below Bowman Lake, Calif.

369

Location.- Water-stage recorder and,concrete control, lat. 39°26', long. 120°40', in SE£ 

sec. Y, 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 1949.

Average discharge.- 22 years, 31.9 second-feet.

Extremes.- Maximum discharge during year, 62 second-feet Feb. 14 (gage height, 8.30 feet); 

no now Mar. 5.

1927-49: 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. Flow regulated by Bowman Lake beginning in 1926 (see preceding 

page) and diversion into Bowman-Spaulding Canal (see following page). Bowman Lake 

receives water from Middle Pork Yuba River through Milton-Bowman'tunnel (see p. 362).

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.0 0.05 1.4 3.8 1.8 10 

1.1 .7 1.5 4.9 1.9 17 

1.2 1.7 1.6 6.2 2.0 26 

1.3 2.7 1.7 7.8

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.3 

.3 

.3 

.3 

.3

.3 

.3 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.3 

.3 

.3 

.3

.3

.4 

.3 

.2 

.2

.1 

.2 

.3 

.4 

.4 

.3

Nov.

3.3 

1.7

4.0 

.7 

.6

.5 

.4 

.3 

.3 

.4

.5

.6 

.5 

.4 

.4

.7 

1.5 

.8 

.7 

.6

.5

.4 

.4 

.4 

.4

.6 

.5 

.4 

.4 

.4

Dec.

0.4 

.4 

.6 

.6 

.5

.4 

.3 

.4 

.4

.6

.6 

2.2 

2.8

1.1 

.8

.7 

.6 

.6 

.5 

.6

.6 

.6 

.7 

.9

.8

.8 

.8

.7 

.7 

.7 

.7

Jan.

0.7 

.6 

1.4 

.7 

.4

.4

.9 

.8 

1.0 

2.8

.8 

.7 

.7 

.6 

.6

.4 

.4 

.3

.4 

.4

.6 

.5 

.4 

.3 

.2

.1 

.1 

.2 

.2 

.2 

.2

Feb.

0.2 

.1 

.1 

.1 

.1

 .1 

.1 

.1 

.1 

.2

.1 

.1 

.1 

21 

3.1

.4 

.3 

.2 

1.2 

.3

.1 

.3 

.9 

1 .4 

1.1

1.0 

2.3 

.8

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

0.2 

.1 

1.6 

9.2 

0

.1 

.2

.1 

.1 

.3

.7 

.6 

.6 

.6 

.7

.7 

1.1 

2.1 

2.0 

1.1

1.2 

1.4 

.9 

.7 

.6

.9 

1.7 

1.5 

.9 

.9 

.9

Apr.

2.3 

2.2 

2.7 

3.2 

3.7

3.9 

3.9 

4.8 

5.3 

5.9

6.5 

5.8

5.6 

5.8 

5.4

5.9 

5.6 

5.0 

4.8 

4.7

4.9 

5.2 

4.7 

4.6 

4.0

3.9 

3.6 

3.4 

2.9 

2.9

Secondfoot-days

10.0 

23.3 

23.1

13,562.5

18 JD 

35.9 

33.7 

133.1 

54. 2 

28.2 

8.9 

5.0 

7.5

380.9

May

3.0 

2.8 

2.5 

2.4 

2.3

2.1 

2.0 

2.1 

1.8 

1.7

1.7 

2.1 

2.0 

3.4 

2.1

1.7

1.4 

1.2 

2.0 

2.0

1.7 

1.4 

1.3 

1.0 

1.0

.9

.9 

.9

.9 

.8 

1.1

Maximum

r 0.4 

4.0 

2.8

869

2.8 

21 

9.2 

6.5 

3.4 

5.8 

.4 

.2 

1.3

21

June

1.0 

.7

'.6 

.6 

.6

.6 

.6 

.6 

.7

.7

.7 

.6 

.5 

.6 

.6

.6.6' 

.6 

.5 

.4

.4 

4.9 

5.8 

.7 

.5

sWy

0.4 

.4 

.3 

.3 

.3

.3

.3 

.4 

.4 

.3

.3 

.3 

.3 

.3 

.4

.3 

.3 

.3 

.2 

.2

.2 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.3 

.3 

.2

Aug.

0.2 

.2 

.1 

.1 

.2

.2

.1 

.1 

.1 

.1

.1 

.2 

.1 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2

.1 

.1 

.1 

.2

.2

.2 

.2 

.2 

.1 

.2

Minimum Mean

0.1 0.32 

.3 .78 

.3 .75

.1 37.1

.1 .58 

.1 1.28 

0 1.09 

2.2 4.44 

.8 1.75 

.4 .94 

.2 .29 

.1 .16 

.1 .25

0 1.04

Sept.

0.2 

.2 

.2 

.1 

.1

.1 

.2 

.2 

.2 

.1

.2 

.2 

.3 

.2 

.2

.3

1.3 

.7 

.4 

.3

.3

.3 

.3

.2

.1

.1 

.1 

.1

.1 

.2

Runoff In 

acre-feet

20 

46 

46

26,900

36

71 

67 

264 

108 

56 

18 

9.9 

15

757
370 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

 E., 150 feet downstream from intake and 0.2 mile downstream from Bowman Dam. Altitude 

of gage, about 5,400 feet (from topographic map).

Records available.- October 1927 to September 1949! 

Average discharge.- 22 years, 145 second-feet.

Extremes.- Maximum daily discharge during year, 240 second-feet Oct. 23, Nov. 24; no flow

 t'eb. 12-20, 24, 25, 28, Mar. 1, 5, June 27. '

1927-49: Maximum daily discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times each year except 1943-45, 1948.

Remarks.- Records good except those below 10 second-feet, which are poor. 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 several discharge measurements furnished by 

Nevada Irrigation District.

Discharge, in second-feet, water year October 1943 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

235. 

237 

237 

236 

235.

235 

233 

234 

233 

231

230 

229 

234 

234 

232

232 

231 

232 235' 

235

234 

236 

240 

236 

236

236 

236 

234 

234 

232 

232

Nov.

221 

221 

222 

22.4,

*t

3227 

a228 

a229 

a230 

a231

a232 

3233 

234 

235 

233

233 

231 

231 

232 

230

228 

227 

231 

240 

237

236 

235 

234 

234 

238

Dec.

238 

237 

234 

230

> 230

228 

229 

232 

232 

232

230 

227 

224 

226 

230

233 

234 

233 

227 

223

224 

223 

222 

222 

222

221 

215 

214 

214 

214 

210

Month

Oeto 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

. Wa

Jan.

206 

206 

209 

210 

203

159 

122 

120 

119 

119

119 

120 

120 

117

117

117 

117 

116 

114 

116

114 

112 

112 

112 

112

112 

111 

110 

49 

1.4 

12

Feb.

46 

84 

43 

44 

52

53 

53 

53 

52 

52

31

0 

0 

0 

0

0 

0 

0 

0 

0

.1

.1 

.1

0 

0

.1 

.1

0

lendar year 1948

ter year 1948-49 ...............

Mar.

0 

.7 

2.7 

.1 

0

9.4 

.1

.1 

.1 

.1

.6 

.5 

.2 

b.2 

b.3

b.3 

b.5 

bl.O 

1.1 

.5

.9 

.9 

.4 

.3 

.4

.9

1.7 

1.3 

.5 

.5 

.4

Apr.

0.1 

.1 

.2 

.6 

1.9

1.8 

2.0 

2.0 

2.4 

2.7

2.8 

2.5 

2.4 

2.8 

2.4

2.6 

2.6 

2.5 

2.4 

2.4

2.6 

2.5 

2.3 

2.3 

2.0

2.0 

2.0 

2.0 

1.9 

1.7

Secondfoot-days

7,256 

6,923 

7,010

' 57,835.9

3,803.4 

563.5 

26.7 

60.5 

87.7 

218.5 

6,268 

7,088 

6,762

46,067.3

May

1.7 

1.8 

1.6 

1.4 

1.0

1.0 

1.1 

1.3 

1.4 

1.4

1.6 

2.2 

2.7 

4.5 

4.4

4.1 

3.2 

2.6 

4.0 

5.1

4.0 

3.3 

2.9 

2.8 

2.7

2.8 

3.4 

3.6 

4.0 

4.4 

5.7

Maximum

240 

240 

238

240

210 

84 

9.4 

2.8 

5.7 

52 

225 

237 

236

240

June

6.0 

5.2 

4.0 

3.4 

3.4

3.6 

4.1 

4.8 

5.0 

5.6

5.7 

5.7 

5.8 

6.0 

6.0

6.2 

5.6 

5.6 

5.7 

6.0

6.0 

6.4 

6.4 

7.3 

8.5

7.0 

0 

8.5 

13 

52

Minimum

July

101 

146 

150 

152 

152

171 

194 

210 

218 

222

219

218 

218 

218

218

218 

220 

220 

220 

219

219 

218 

216 

219 

221

220 

223 

225 

224 

155 

224

229 

221 

210

.2

1.4 

0 

0 

.1 

1.0 

0 

101 

208 

135

0

Aug.

223 

215 

208 

212 

224

227 

230 

230 

227 

229

232 

234 

235 

233 

235

237 

232 

230 

232 

232

232 

231 

230 

230 

232

231 

230 

230 

228 

227 

230

Mean

234 

231 

226

158

123 

20.1 

.86 

2.02 

2.83 

7.28 

202 

229 

225

126

Sept.

230 

230 

228 

230

231

231 

230 

228 

230 

230

229 

229 

229 

230 

233

236 

135 

184 

218 

224

224 

229 

231 

230 

231

233 

232 

 235 

236 

236

Runoff In 

acre-feet

14,390 

13,730 

13,900

114,700

7,540 

1,120 

53 

120 

174 

433 

12,430 

14,060 

13,410

91,360

a Ho gage-height record, discharge Interpolated, 

b Stage-discharge relation affected by ice.
FEATHER RIVER BASIN 371

Deer Creek near Smartville, Calif.

Location.- Water-stage recorder, lat. 39°13'20", long. 121°16'00", in sec. 23, T. 16 N., R. 

6 E., 1 mile upstream from mouth and 2 miles northeast of Smartville. . Altitude of gage, 

about 500 feet (from topographic map).

Drainage area.- 83.5 square miles.

Records available.- June 1935 to September 1949.

Average discharge.- 14 years, 146 second-feet.

Extremes.- Maximum discharge during year, 4,950 second-feet Mar. 2 (gage height, 9.50 

feet); minimum, 1.1 second-feet Sept. 25.

1935-49: 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 except those for periods of no gage-height record, which tre fair, 

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.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 2 Mar. 3 to Sept. 30

1.2 3.0 2.0 44 4.5 580 1.2 1.0 1.7 10 2.8 

1.3 4.5 2.3 76 5.0 790 1.3 1.6 1.8 15 3.2 

1.4 "6.8 2.6 lie 5.5 1,050 1.4 2.7 2.0 30 3.5 

1.5 10 3.0 174 6.0 1,380 1.5 4.6 2.2 52 

1.6 14 3.5 286 6.8 2,050 1.6 7.0 2.5 95 

1.8 28 4.0 415 7.6 2,840 

Note.- Same as preceding table , 

3 .5 feet . _ ' 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

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.

7.4 

8.7 

6.6 

5.0 

5.0

5.0 

5.0 

4.7 

4.4 

4.0

4.7 

5.0 

5.2 

5.4 

6.1

6.3 

5.9 

5.6 

5.6 

6.3

5.9 

5.6 

5.9 

5.4 

5.9

8.1 

5.6 

11 

5.4 

6.3 

7.1

Nov.

26 

36 59 ' 

24 

30

30 

27 

23 

22 

23

20 

21 

18 

18 

26

24 

24 

18 

13 

4.5

4.2 

3.8 

3.6 

3.4 

3.4

3.3 

3.4 

3.8 

3.8 

3.9

Dec.

3.9 

3.8 

22 

18 

55

55 

31

46 

16 

6.8

5.9 

26 

341 

113 

51

38 

1S1 

69 

31 

20

14 

11 

9.0 

8.4 

a8

a!7 

50 

a56 

62 

49 

48

Jan.

138 

130 

61 

47 

43

38 

36 

34 

30 

28

32 

32 

30 

a27 

30

28 

27 

27 

33 

35

44 

82 

60 

41 

38

37 

35 

35 

34 

34 

34

Feb.

34 

34 

39 

99 

226

121 

305 

154 

122 

243

798 

223 

121 

89 

66

68 

87 

98 

95 

132

122

201 

197 

151 

110

87 

78 

64

Month

Ooto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

h.......................................

ter year 1948-49 .......................

Mar.

57 

995 

2,770 

856 

518

281 

178 

137 

139 

681

1,190 

578 

279 

204 

174

307 

206 

186 

253 

255

202 

256 

320 

251

208

186 

171 

164

151 

147 

147

Apr.

140 

139 

136 

131 

128

126 

123 

120 

118 

118

120 

142 

186 

214 

238

227 

229 

233 

240 

206

84 

76 

72 

167 

158

72 

65 

58 

50 

34

Secondfoot-days

184.1 

523.1 

1,465.8

25,669.9

1,360 

4,164 

12,447 

4,150 

397.8 

193.2 

59.1 

58.5 

48.1

25,050.7

Peak discharge (base, 3,500 see. -ft.).- Mar. 2 (12 p.m

May

27 

25 

22 

16 

7.9

8.2 

8.2 

8.5 

8.5

8.2 

7.6 

7.3 

9.4

10

11 

11 

12 

17 

25

18 

15 

14 

12 

9.7

12 

14 

9.4 

10 

14 

1»

Maximum

11 

59 

341

1,260

138 

798 

2,770 

240 

27 

10 

2.2 

2.2 

3.0

2,770

June

10 

9.4 

6.3 

5.3 

4.6

4.6 

4.4 

3.9 

3.2

4.1 

6.0 

5.1 

3.5 

3.0

3.3

9.4 

8.2 

9.4 

9.7

8.8 

9.4 

8.8 

10 

9.4

9.1 

8.8 

6.5 

2.6 

2.3

July

2.2

1.8 

1.8 

1.8 

1.8

1.8 

1.7 

1.7 

1.8

1.7 

1.6 

1.8 

1.8 

2.0

2.1 

1.8 

1.8 

1.8 

2.1

2.0 

2.0 

1.8 

2.0 

2.2

2.2 

2.1 

2.0 

2.1 

2.0 

2.0

142 

21S 

286

above

Aug. .

2 

2 

2 

2 

2

1 

1 

2 

2

2 

2 

2 

2 

2

2 

2 

2 

1 

1

1 

1 

1 

1 

1

1 

1 

1 

2 

2 

1

Minimum Mean

4.0 5.94 

3.3 17.4 

3.8 47.3

2.5 70.1

27 43.9 

34 149 

57 402 

34 138 

7.3 12.8 

2.3 6.44 

1.8 1.91 

1.5 1.89 

1.2 1.60

1.2 68.6

.) 4,950 see. -ft.

.1 

.0 

.0 

.0

.1

.8 

.8 

.0 

.1

.1 

.0 

.2 

.1 

.2

.2 

.t 

,0 

,6 

.8

.6 

.5 

.4 

.5 

.5

.5 

.5 

.6 

.1 

.2 

.8

Sept.

1.5 

1.5 

1.5 

1.5 

1.7

1.7 

2.0 

1.8 

2.1

3.0 

1.5 

1.2 

1.2 

1.3

1.4 

1.5 

1.5 

1.4 

1.3

1.4 

1.6 

2.4 

1.4 

1.3

1.4 

1.3 

1.6 

1.6 

1.8

Runoff In 

acre-feet

365 

1,040 

2,910

50,930

2,700 

8,260 

24,690 

8,230 

789 

383 

117 

116 

95

49,700

a No gage-height record; discharge Interpolated on basis of trend of recorder graph.
372- 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 

w., R. -6 E., 0,2 mile downstream from New York Creek and 0.9 mile northeast of Brownsville. Altitude of gage, about 2,280 feet (from topographic map).

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 572 second-feet Mar. 10 (gage height, 4.64 feet)., 

rrom rating curve extended above 350 second-feet by logarithmic plotting; minimum, 0.8 

second-foot July 17.

Remarks.- Records good except those for periods of ice effect or doubtful or no gage-height 

record, which are fair. No large diversion above station.

Rating tables, water year 1948-49, except period of lee effect 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 10 Mar - n to Se P*- 30

1.0 1.4 1.4 12 2.4 100 1.0 1.0 1.3 6.8 

1.1 3.0 1.6 23 2.8 156 1.1 2.2 1.4 11 

1.2 5.4 1.8 37 3.2 225 1.2 4.0 1.6 23 

1.3 8.3 2.1 65 3.7 325 

Note.- Same as preceding 

 table above 1.6 feet.

Discharge, in second-feet, -water year October 1946 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

26 

29 

30 

31

Oct.

4 

4 

4

3

2.5 

4.4 

3.7 

3.5

Nov.

27 

20 

46 

9.9 

7.1

6.0 

5.7 

5.4

5.2 

5.2

4.9 

4.9 

4.7 

5.2 16"

14 

14 

9.1 

8.7 

7.4

6.8 

6.3 

6.3 

6.3 

6.8

6.0 

5.7 

5.7 

5.7 

5.7

Dec.

« 5.4 

S.4 

20 

13 

56

33 

50 

42 

23 

17

15 

83 

119 

53 

33

25 

30 

23 

18 

16

16 

13 

11

11 

9.5

28 

74 

35 

25 

20 

22

Jan,

53 

38 

21 

18

15

14 

14 

12 

11

bio

b9.5 

b9 

b9 

b8.5 

b8.5

b8.5 

9.1 

9.5 

9.5 

9.9

10 

11 

15 

14 

13

13 

13

13 

12 

11 

11

Feb.

11 

10 

10 

13 

16

38 

104 

66 

30 

34

84 

58 

50 

40 

39

39 

43 

43 

48

70

73 

110 

98 

92

80

82 

76 

69

Month

Octo 

Hove 

Dece

Ca

Janu 

Febn 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

.endar year

ter year 1948-49 .......................

Mar.

69 

239 

231 

191 

147

110 

92 

78 

106 

274

306 

198 

127 

101 

94

141 

100 

86 

113 

101

78 

85 

105 

90 

75

60 

50 

h46 

42 

38 

35

Apr.

32 

30 

28 

25 

24

23 

22 

21 

20 

19

18 

17 

17 

16 

16

15 

15 

15 

15 

15

16 

17 

18 

18 

17

17 

18 

18 

20 

18

Secondfoot-days

98.1 

287.7 

944.3

433.0 

1,526 

3,608 

580 

631 

238.0 

92.6 

57.8 

46.5

8,543.0

Peak discharge (base, 270 sec. -ft.).- Dec. 12 (11 p.m.

May

18 

19 

19 

18 

13

13 

13 

11 

11 

11

15 

20 

20 

25 

28

23 

21 

21 

33 

27

23 

26 

25 

25 

25

25 

23 

21 

22 

21 

16

Maximum

46 

119

-

53 

110 

306 

32 

33 

15 

4.2 

2.4 

1.9

306

June

15 

13 

12 

11 

11

11 

11 

12 

12 

11

8.7 

7.2 

6.5 

6.2 

5.5

5.8 

6.2 

6.8 

7.6 

6.8

6.5 

' 5.8 

5.8 

6.2 

a5.5

a4.9 

4.2 

4.2 

4.4 

4.2

July

4.0 

3.8 

4.0 

4.0 

3.8

4.0 

3.8 

4.0 

4.2 

4.0

4.2 

3.6 

3.2 

3.2 

2.6

2.6 

2.4 

2.2 

2.4 

2.4

2.4 

2.4 

2.6 

2.2 

2.2

2.2 

2.0 

1.9 

2.0 

1.9 

2.4

Aug.

2.2 

2.0 

1.9 

1.6 

1.5

1.6 

1.6 

1.8 

1.8 

1.8

1.9 

1.9 

1.9 

1.9 

1.9

1.8 

1.8 

1.8 

1.8 

1.8

1.8 

1.8 

1.8 

1.9 

1.9

1.9 

2.0 

2.4 

2.2 

1.9 

1.9

Minimum Mean

3.16 

4.7 9.59 

5.4 30.5

-

8.5 14.0 

10 54.5 

35 116 

15 19.3 

11 20.4 

4.2 7.93 

1.9 2.99 

1.5 1.86 

1.1 1.55

1.1 23.4

) 275 sec. -ft.; Mar. 2 (8i30 p.m.

Sept.

1.9 

1.8 

1.3 

1.3 

1.3

1.4 

1.6 

1.5 

1.4 

1.6

1.8 

1.6

1.4 

1.5 

1.8

1.4 

1.3 

1.3 

1.1 

1.1

1.3 

1.4 

1.5 

1.6 

1.8

1.9 

1.9 

1.9 

1.9 

1.9

Runoff In 

acre-feet

195 

571 

1,870

-

859 

3,030 

7,160 

1,150 

1,250 

472 

184 

115 

92

16,950

372 seo.-

ft.; Mar. 10 (11 p.m.) 572 see.-ft.

a No gage-height record} discharge Interpolated.

b Stage-discharge relation affected by Ice.

h Computed from staff-gage reading.

Note.- Doubtful gage-height record Oct. 1-27, no gage-height record Mar. 22-27, Mar. 29 to Apr. 27; 

discharge computed on basis of records for station at Virginia Ranch.
FEATHER RIVER BASIN 373

Dry Greek at Virginia Ranch, Calif.

Location.- Water-stage recorder, lat. 39°19'20", long. 1310 18'45", in NW£ sec. 21, T. 17 

«., 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).

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 2,950 second-feet Mar. 10 (gage height, 7.07 

reet], from rating curve extended above 1,700 second-feet by logarithmic plotting; 

minimum, 0.7 second-foot June 17, Sept. 30.

Remarks,- Records good except those for periods of ice effect or no gage-height record, 

which are fair. Medium and low flows partly regulated by Lake Mildred (capacity, 1,500 

acre-feet). Several diversions above station for irrigation.

Rating table, water year 1948-49, except period of loe effect

(gage height, In feet, and discharge, In second-feet) 

(Shifting-control method used Dot. 6-31, Jan. 22 to Feb. 3)

0.9 0.7 1.5 14 2.6 111 4.5 740 

1.0 1.5 1.7 23 2.9 165 5.0 1,020 

1.1 2.6 1.9 33 3.2 232 5.5 1,360 

1.2 4.4 2.1 47 3.6 359 6.0 1,780 

1.3 7.0 2.3 68 4.0 515 6.5 2,280

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

E5

26 

27 

28 

29 

30 

31

Oct.

1.9 

1.8 

2.0 

2.2 

2.2

2.0 

1.9 

l.«9 

1.8 

1.7

1.8 

1.7 

2.3 

2.5 

2.4

2.2 

2.0 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.3

2.0 

1.8 

2.4 

2.4 

2.4 

2.4

Nov.

88 

212 

70 

24 

13

10 

9.4 

8.8 

8.5 

8.2

7.9 

7.9 

7.6 

7.6

15

16 

23 

14 

12 

11

11 

10 

9.7 

9.4 

9.4

9.7 

9.1 

9.1 

9.1 

9.1

Dec.

9.1 

8.8 

19 

29 

28

172 

39 

144 

50 

32

26 

23 

313 

261 

alSO

a80 

alOO 

a70 

aSO 

a40

a35 

a30 

27 

23 

23

77 

377 

122 

66 

50 

46

Jan.

144 

147 

64 

44 

37

34 

32 

30 

27 

b26

b24 

b23 

b23 

b24 

b21

b20 

20 

20 

24

24

31 

49 

41 

30 

28

27 

26 

27 

27 

28 

28

Feb.

27 

25 

30 

87 

144

93 

173 

123 

108 

282

869 

222 

132 

105 

96

96 

113 

118 

120 

179

179 

295 

260 

222 

173

161 

148 

130

Month

Octo 

Move

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year . 

ary

ter year 1948-49 .......................

Mar.

118 

734 

2,020 

1,000 

724

396 

263 

203 

265 

1,010

1,600 

673 

378 

276 

227

401 

246 

200 

~296 

276

198 

223 

423 

272

194

161 

144 

128 

114 

108 

99

Apr.

88 

84 

77 

69

45

18 

12 

10 

9.1 

8.5

7.9 

7.6 

4.7 

3.9 

3.9

3.7 

3.7 

3.5 

3.3 

3.1

4.4 

15 

21 

21 

20

19 

20 

21 

24 

24

Secondfoot -days

65.4 

669.5 

2,519.9

-

1,150 

4,710 

13,370 

655.3 

540 

76.6 

56.0 

48.4 

44.7

23,905.8

May

23 

23 

25 

22 

20

17 

17 

18 

17 

17

17 

14 

13 

14 

20

20

17 

21 

23 

30

21 

17 

17 

16 

14

13 

11 

11 

10 

11 

11

Maximum

2.5 

212 

377

-

147 

869 

2,020 

88 

30 

8.8 

2.0 

1.8

2,020

June

8.8 

7.6 

6.2 

5.4 

4.9

4.4 

3.9 

3.7 

3.3 

3.0

3.0 

2.4 

1.9 

1.3 

.9

.9 

.9 

.8 

.9 

.9

.9 

a. 9 

a. 9 

al.O 

al.O

al.l 

1.1 

1.4 

1.6 

1.6

July

1.5 

1.8 

1.8 

1.8 

1.7

1.8 

1.8 

1.8 

1.9 

2.0

1.9 

1.9 

1.9 

1.9 

1.9

1.9

1.9 

1.8 

1.7

1.8

al.8 

al.8 

al.8 

al.8 

al.8

al.8 

1.8 

l.B 

1.7 

1.7 

1.7

Aug.

1.6 

1.5 

1.4 

1.3 

1.3

1.3 

1.3 

1.4 

1.4

1.3

1.5 

1.8' 1.8 

1.8 

1.8

1.8 

1.8 

1.7 

1.7 

1.7

1.7 

1.8 

1.6 

1.6

1.6

1.5 

1.4 

1.7 

1.5 

1.4 

1.4

Sept.

1.3 

1.3 

1.7 

2.4 

2.4

, al.5

.9 

.9 

.8

Ktnl'm.i. U»«n RUHOff In Minimum Mean aore. feet

1,7 2.11 130 

7.6 22.3 1,330 

8.8 81.3 5,000

-

20 37.1 2,280 

25 168 9,340 

99 431 26,520 

3.1 21.8 l;ZOO 

10 17.4 1,070 

.8 2.55 152 

1.5 1.81 111 

1.3 1.56 96 

.8 1.49 89

.8 65.5 47,420

Peak discharge (base, 1,900 sec. -ft.).- Feb. 11 (3:30 a.m.) 1,940 seo.-ft.j Mar. 3 (1 a.m.) 2,800

sec.-ft.; Mar. 10 (io p.m.,1 2,950 sec.-ft.

a Ho gage-height record; discharge computed on basis of records for station near Brownsville, 

b Stage-discharge relation affected by Ice.

M7809 O - SI.- 25
374 FEATHER RIVER BASIN

Bear River near-Auburn, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 121°05 T , near south line of sec. 33, 

mm., R. 8 E., 300 feet upstream from bridge on State Highway 49, 3.5 miles upstream from Wolf Creek, and 8 miles north of Auburn. Altitude of gage, about 1,300 

feet (from topographic map).

Drainage area.- 140 square miles.

Records available.- December 1940 to September 1949 in reports of Geological Survey, 

lyza, i92b-2H, 1929-33, incomplete (gage heights for high-water periods only), in reports of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 1,780 second-feet Mar. 4 (gage height, 8.02 

reet, from high-water mark in gage well); minimum, 0.9 second-foot July 26, 27.

1940-49: 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 891: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28

29 

30 

31

Oct.

2.5 

2.7 

2.7 

2.7 

2.7

2.9 

3.0 

3.2

3.0 

3.0

3.2

3.0 

3.2 

3.0 

2.6

2.5

1.5 

1.5 

1.7 

1.8

2.1 

2.1 

2.1 

2.2 

2.2

2.2 

2.2 

2.5

2.6 

2.9

3.0

Nov.

3.8 

4.2

6.1 

3.4 

3.2

2.9 

2.9 

2.7 

2 7 

2.9

3.4 

3.2 

2.9 

2.7 

3.6

3.2

147 

205 

19 

11

6.8 

4.8 

4.9 

5.4 

5.7

6.8 

8.5 

9.3 

9.3

30

Dec.

12 

5.0 

42 

34 

69

153 

58 

156 

77 

49

28 

14 

41 

36 

48

47 

55 

44 

44

43

43 

42

40 

36 

34

40 

50 

40 

40 

40 

40

Jan.

51 

46 

44 

44

117

191 

199 

191 

186 

186

180 

174 

168 

164 

160

156 

145 

132 

111 

96

97 

89 

17 

25 

25

27 

22 

17 

32 

34 

34

Feb.

34 

36 

38 

43 

46

17 

27

19 

18 

23

47 

50 

48 

48

47

47 

47 

47 

47 

48

343 

675 

538 

515 

515

499 

487 

459

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

415 

467

fl,040 

fl,590 

1,050

715 

615 

605 

600 

625

868 

1,280 

898 

670 

605

640 

755 

596 

582 

582

574 

578 

587 

439 

224

735 

821 

865 

760 

745 

680

Apr.

665 

655 

635 

610 

680

750 

750 

777 

740 

782

821 

892 

920 

898 

904

892 

914 

848

1,010 

876

777 

655 

402 

9.4 

22

233 

287 

279

276 

261

Secondfoot -days

78.5 

526.4 

1,500.0

77,635.1

3,160 

4,808 

22,206 

19,220.4 

4,660 

420.0 

78.5 

88.0 

151.7

56,897.5

May

266 

221 

244 

208 

199

186 

182

178 

178 

182

153 

65 

81 

100 

95

92

177 

153 

191 

206

168 

144

152 

133 

120

109 

100 

100 

100 

66 

111

Maximum

3.2 

205

156

2,800

199 

675 

1,590 

1,010 

266 

101 

5.0 

3.6 

7.3

1,590

June

101 

48 

22 

2.8 

1.5

4.4

3.7 

42 

72 

48

23 

2.2 

2.8 

3.2 

2.0

2.3 

2.0 

2.0 

2.2 

2.2

2.2 

2.2 

2.3 

2.8 

3.0

3.4 

3.6 

3.4 

3.9 

3.9

July

Minimum

1.5 

2.7 

5.0

1.5

17 

17 

224 

9.4 

65 

1.5 

1.1 

1.9 

3.6

1.1

3.6 

2.5 

2.5 

2.7 

2.8

3.0 

1.8 

1.8 

1.7 

1.6

1.8 

1.9 

2.5 

2.8 

2.8

3.2 

3.3 

3.6 

3.3 

3.6

4.7 

5.0 

3.8 

1.7

1.4

1.1 

1.2 

1.4 

1.6 

1.9 

1.9

Aug.

Z.O 

2.2 

2.2 

2.2 

2.2

2.2 i<l

3.3 

3.3

3.1 

2.9 

2.9 

2.9 

2.0

1.9 

2.0 

2.2 

2.4 

2.6

2.9 

2.9 

3.3 

3.6 

3.6

3.3 

3.3 

3.6

3.6 

3.6 

3.6

Mean

2.53 

17.5 

48.4

212

102 

172 

716 

641 

150 

14.0 

2.53 

2.84 

5.06

156

Sept.

3.6 

3.6 

3.8 

3.8 

4.1

4.4 

4.4 

4.7 

4.7 

4.7

4.7 

4.7 

4.7 

4.7 

4.7

5.0 

5.0 

5.4 

5.7 

5.4

5.7 

6.1 

6.1 

7. -3 

7.3

6.9 

5.4 

5.4 

5.0 

4.7

Runoff In 

acre-feet

156 

1,040 

2,980

154,000

6,270 

9,540 

44,040 

38,120 

9,240 

833 

156 

175 

301

112,900

f Computed on basis of partly estimated gage-height record.
FEATHER RIVER BASIN 

ar River near Wheatland, Calif.

375

Location.- Water-stage recorder, lat. 39°00", long. 121°35', in see. 3, T. 13 N., R. 5 E., 

on downstream side of-bridge on U. S. Highway 99E, 1 mile southeast of Wheatland and 

6.5 miles downstream from Rock Creek. Altitude of gage, about 85 feet (from topographic map).

Drainage area.- 295 square miles.

Records available.- October 1928 t.o September 1949.

Average discharge.- 20 years {1929-49}, 411 second-feet.

Extremes. - Maximum discharge during year, 7,890 second-feet Mar. 3 (gage height,11.76 feet); 

no flow Sept. 5, 6.

1928-49: Maximum discharge, 31,300 second-feeC Jan. 21, 1943 (gage height, 16.95 

feet, site and datum then in use), of which 25,600 second-feet was in main channel and 

5,700 second-feet through levee break 0.5 mile upstream (determined by contractedopening method and other data).; no flow May 8, Sept. 18-25, 1939, Sept. 5, 6, 1949.

Remarks.- Records good below 200 second-feet, fair above. 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 1948 to September 1949

Day

1 

2 

Z 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

17 

19 

20 

19 

19

19 

19 

19 

18

19

26 

24 

24 

29 

69

69 

69 

69 

68 

68

67 

63 

59 

58 

56

55 

56 

61 

58 

59 

99

Nov.

87 

78 

102 

113 

134

130 

63 

62 

65 

59

57 

58 

53 

56 

68

83 

101 

317 

153 

88

78 

73 

67 

64 

62

64 

64 

67 

63 

51

Dec.

85 

67 

95 

142 

121

338 

170 

333 

184 

157

125 

101 

338 

318 

£09

168 

368 

£7£ 

162 

130

124 

122 

114 

107

loo

119 

6E2 

364 

199 

162 

146

Jan.

316 

380 

202 

155 

157

285 

282 

£76 

270 

£52

247 

£38 

£36 

230 

225

217 

207 

192 

192 

192

162 

363 

££4 

155 

136

130 

122 

105 

111 

120 

120

Feb.

116 

116 

126 

144 

470

301 

525 

285 

202 

187

869 

434

£61 

204 

175

159 

171 

192 

197 

209

341 

685 

812 

707 

6£4

565 

550 

489

Month

Ooto 

Hove 

Dace

Ca

Janu. 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948 

stpy

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

ter year 1948-49 .......................

Mar.

440 

1,240 

6,750 

4,110 

2,300

1,490 

1,130 

1,030 

976 

1,440

3,460 

2,860 

1,770 

1,260 

1,070

1,220 

1,190 

988 

1,050 

1,110

934 

946 

1,230 

1,020 

537

892 

1,010 

1,160 

964 

898 

850

Apr.

795 

773 

768 

724 

75i

506 

228 

658 

806 

817

822 

898 

934 

898 

862

886 

886 

f934 

795 

773

707 

641 

51£ 

303 

26£

39 

9.6

27 

67 

116

Secondfoot-days

1,394 

£,580 

6,062

108,655.2

6,499 

10,116 

47,385 

18,197.6 

5,987 

769.8 

63.6 

58.0 

194.2

99,306.2

May

288 

270 

273 

£52 

232

£09 

206 

209 

203 

£06

£00 

158 

104 

108 

160

129 

148 

198 

£2£ 

288

£77 

248 

£06 

186 

170

156 

146 

139 

139 

141 

116

Maximum

99 

317 

622

4,530

380 

869 

6,750 

934 

£88 

156 

7.6 

9.2 

32

6,750

June

156 

141 

86 

54 

45

35 

27 

29 

25 

29

25 

25 

2£ 

13 

10

6.3 

4.£ 

4.8 

4.8 

4.8

4.£ 

4.0 

3.0 

4.0 

2.6

£.6 

1.0 

.6 

.3

.6

July

3.1 

3.5 

3.9 

4.5 

7.6

4.6 

2.8 

1.9 

1.4 

2.8

4.6 

4.0 

3.1

.6 

.5

.5 

.5

.3 

.3

.5

£.7 

.£ 

.£ 

.9 

4.0

.£ 

.2 

.1 

.1 

1.9 

£.1

Aug.

2.0 

2.0 

2.0 

1.4 

1.6

.1 

.1 

.1 

2.1 

, .1

.1 

.1 

.1

.1 

.1

.1

.1 

.2 

.7 

£.5

4.8 

5.6 

9.£ 

8.8 

3.7

1.9 

1.9 

2.1 

1.5 

1.4 

1.5

Minimum Mean

17 45.0 

51 86.0 

67 196

.£ 297

105 £10 

116 361 

440 1,5£9 

9.6 607 

104 193 

.3 25.7 

.1 £.05 

.1 1.87 

0 6.47

0 272

Sept.

3.6 

3.6 

3.9 

1.7 

0

.2 

£.8 

2.8 

2.8 

£.8

3.0 

3.9 

5.5 

6.9 

6.3

6.9 

6,1 

6.1 

6.3 

5.0

5.8 

6.9 

7.3 

7.3 

9.7

10 

11 

11 

13 

32

Runoff In 

acre-feet

2,760 

5,120 

12,020

215,500

12,890 

20,060 

93,990 

36,090 

11,880 

1,530 

126 

115 

385

197,000

Peak discharge (base, 3,100 sec. -ft.).- Mar. 3 U:3O p.m.) 7,890 sec. -ft.; Mar. 11 (2:30 a.m.)

5.79O sec. -ft. 

f Fragmentary gage-height record; dlscharg i computed on basis of partly estimated ,gage height.
376 FEATHER RIVER BASIN

Bear River Canal near Coifax, Calif.

Location.- Water-stage recorder, lat. 39°08', long. 120°57', in SE-J- sec. 22, T. 15 N., R. 

 y K., about 500 feet downstream from diversion dam on Bear River and 2 miles north of 

Colfax. Altitude of gage, about 1,980 feet (from topographic map).

Records available.- January 1912 to September 1949.

Average discharge.- 35 years (1914-49), 254 second-feet.

Extremes.- Maximum daily discharge during year, 478 second-feet Nov. 1; no flow Mar. 26 to

1912-49: Maximum daily discharge recorded, 498 second-feet May 11, 1945; no flow at 

times.

Remarks.- Canal 'diverts .from left bank of Bear River in sec. 22, T. 15 N., R. 9 E. Water 

is first used to develop power at Halsey and Wise powerhouses: part of it is then distributed for irrigation, and part ie eventually spilled into North Pork American River.

Cooperation.- Records of daily discharge furnished by Pacific Gas & Electric Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

S 

9 

10

11 

12 

13 

14

IS

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

441 

432 

431 

443

441

445 

443 

457 

450 

44S

440 

447 

443 

449 

430

435 

456 

468 

466 

465

465 

465 

361 

319 

435

453 

465 

475 

470 

475 

447

Nov.

478 

465 

451 

435 

457

454 

456 

450 

452 

453

451 

438 

449 

443 

452

445 

451 

447 

431 

423

425 

440 

455 

428 

435

440 

446 

437 

430 

429

Dec.

429 

424. 

485 

454 

457

447 

458 

457 

457 

439

402 

412 

450 

452 

432

443

450 

440 

415 

435

450 

448 

415 

440 

445

453 

452 

447 

424 

413 

346

Month

Oc to 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Ha

Jan.

182 

438 

447 

429 

405

451 

450 

446 

441 

430

440 

435 

453 

453 

452

432 

443 

443 

440 

408

440 

298 

264 

325 

340

343 

343 

326 

346 

294 

323

Feb.

355 

369 

358 

367 

365

340 

407 

369 

359 

373

432 

283. 

346 

379 

350

381 

360 

391 

468 

394

458 

395 

303 

468 

463

461 

465 

464

lendar year 1948

ter year 1948-49 .......................

Mar.

464 

456 

226 

365 

466

463 

464 

460 

432 

463

465 

462 

463 

458 

458

463 

458 

458 

463 

465

465 

465 

464 

461 

324

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

129 

270 

431 

470 

471

470 

470 

470 

470 

470

Second' 

foot -days

13,842 

13,346 

13,541

134,949

12,183 

10,923 

11,081 

4,121 

14,594 

11,745 

11,391 

11,695 

8,821

137,283

May

470 

470 

470 

470 

470

470 

470 

470 

470 

471

468 

470 

470 

470 

471

470 

470 

470 

470 

470

471 

472 

472 

472 

472

472 

472 

473 

474 

472 

472

Maximum

475 

478 

45S

478

456 

468 

466 

471 

474 

473 

440 

435 

427

478

June

472 

451 

440 

338 

307

473 

468 

470 

472 

462

385 

297 

361 

428 

415

410 

395 

322 

370 

405

365 

365 

380 

343 

320

332 

378 

385 

375 

361

July

347

326 

338 

372 

440

372

361 

318 

356 

349

335 

400 

415 

399 

425

401 

315 

380 

395 

380

83 

398 

400 

380 

427

430 

395 

400 

425 

284 

315

Minimum

319 

423 

346

0

182 

283 

0 

0 

468 

297 

83 

315 

202

0

Aug.

381 

435 

410 

425 

405

363 

340 

400 

425 

405

385 

405 

367 

383 

388

400 

365 

352 

365 

315

320 

404 

386 

349 

375

365 

318 

334 

425 

376 

329

Mean

447 

445 

437

369

393 

390 

357 

137 

471 

392 

367 

377 

294

376

Sept.

336 

356 

325 

302 

345

427 

353 

316 

318 

294

231 

296 

351 

365 

289

247 

204 

243 

356 

315

255 

227 

301 

206 

202

241 

299 

312 

262 

247

Runoff In 

acre-feet

27,480 

26,470 

26,860

267,700

24,160 

21,670 

21,980 

8,170 

28,950 

23,300 

22,590 

23,200 

17,500

272,300
AMERICAN RIVER BASIN 377

North Pork American River at North Pork Dam, Calif.

Location.- Water-stage recorder above spillway of North Pork Dam, lat. 38°56', long. 121° 

Ul', in SEi sec. 30, T. 13 N., R. 9 E., 2 miles upstream from Middle Pork and 4 miles 

northeast of Auburn. Datum of gage is 715.0 feet above mean sea level (levels by 

Corps of Engineers).

Drainage area.- 343 square miles.

Records available.- October 1941 to September 1949.

Extremes.- Maximum discharge during year, 5,040 second-feet Mar. 3 (gage height, 3.73 

reetJ; minimum daily, 28 second-feet Sept. 24-26.

1941-49: 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; no flow Aug. 27-30, Sept. 2-11, 1944 (result of regulation).

Remarks.- Records excellent except those for Oct. 1 to Nov. 13, July 8 to Sept. 30, which 

are good. Some storage and a few diversions above station.

Discharge, In second-feet, water year October 1948 to September 1949

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.

37 

37 

37 

37 

37

40 

40 

37 

35 

35

37 

37 

43 

40 

40

40 

40 

40 

40 

40

40 

40 

40 

40 

37

37 

37 

37 

37 

40 

43

Nov.

52 

200 

294 

324 

134

89 

73 

66 

59 

59

55 

52 

50 

56 

67

75 

87 

91 

79 

71

71 

67 

63 

63 

63

63 

63 

63 

63 

60

Dec.

60 

60 

91 

108 

118

224 

154 

188 

159 

133

118 

118 

490 

416 

279

206 

230 

237 

182 

159

154 

154 

143 

133 

123

143 

293 

279 

212 

176 

164

Month

Octo 

Nove 

Deoe

Ca

Janu. 

Febri 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

Jan.

237 

376 

258 

194 

164

164 

164 

176 

159

123

104 

128 

138 

133 

123

118

118 

123 

128 

138

133 

176 

164

133 

118

128 

128 

123 

118 

118 

118

Feb.

118 

118 

133 

159 

230

230 

286 

258 

212 

224

679 

481 

308 

244 

212

200 

218 

279 

315 

361

392 

424 

616 

599 

591

582

591 

573

mber. ...................................

lendar year 1948

ter year 1948-49 .......................

Mar.

556 

911 

4,080 

2,420 

1,480

1,080 

895 

805 

735 

835

1,600 

1,880 

1,490 

1,180 

1,000

1,680 

1,730 

1,470 

1,440 

1,400

1,270 

1,300 

1,420 

1,340

1,150

1,000 

985 

1,000 

915 

875 

805

Apr.

775 

785 

795 

885 

1,040

1,240 

1,410 

1,370 

1,550 

1,710

2,070 

2,210 

2,140 

2,210 

2,280

2,470 

2,700 

2,530 

2,480 

2,330

2,500 

2,840 

2,940 

2,810 

2,580

2,270 

2,280 

2,080 

1,960 

1,760

Secondfoot -days

1,197 

2,672 

5,704

241,259

4,723 

9,633 

40,747 

59,000 

52,675 

13,336 

2,357 

1,319 

1,020

194,383

Peak discharge (base, 4,300 sec.-ft.).- Mar. 3 (7:30 a

May

1,770 

1,996 

1,800 

1,780 

1,740

1,74,0 

1,810 

1,780 

1,580 

1,490

1,870 

2,180 

2,360 

3,340 

2,630

2,100 

2,020 

1,640 

1,400 

1,350

1,210 

1,220 

1,310 

1,440 

1,530

1,580 

1,480 

1,320 

1,160 

1,080 

975

Maximum

43 

324

490

5,960

376 

679 

4,080 

2,940 

3,340 

865 

133 

50 

44

4,030

June

865 

835 

785 

775 

815

785 

755 

725 

652 

625

582 

522 

464 

h416 

h376

H346 

h315 

h293 

h279 

h258

h230 

h224 

h212 

h206 

h!94

h!76 

h!70 

h!59 

h!54 

143

Minimum

July

133 

128 

123

118 

113

113 

108 

102 

87 

83

79 

79 

75 

71 

71

64 

64 

60 

60 

57

57 

54 

54 

54 

50

50 

50 

50 

50 

50 

50

35 

50 

60

35

104 

118 

556 

775 

975 

143 

50 

36 

28

28

Aug.

Mean

38.6

89.1 

184

659

152 

344 

1,314 

1,967 

1,699 

445 

76.0 

42.5 

34.0

533

50 

47 

47 

44 

44

44 

44 

44 

44 

44

44 

44 

44 

44 

44

44 

44 

44 

41 

38

38 

38 

38 

36 

36

36 

38 

41 

50 

41 

44

Sept.

44 

44

41 

44 

38

38 

38 

38 

38 

36

30 

33 

33 

33 

33

33 

33 

33

30 

30

30 

30 

30 

28 

28

28 

30 

30 

30 

36

Bunoff in 

acre-feat

2,370 

5,300 

11,310

478,500

r 9,370 

19,110 

80,820 

117,000 

104,500 

26,450 

4,680 

2,620 

2,020

385,600

m.) 5,040 sec.-ft.
378 AMERICAN RIVER BASIN

North Fork American River at Rattlesnake Bridge, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 121°06', In SW£ sec. 9 T. 11 N., R. 

ti a., 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.

Kecoras available.- November 1930 to September 1937, December'1938 to September 1949.

Average discharger- 16 years (1931-37, 1939-49), 2",270 second-feet.

extremes.- Maximum discharge during year, 12,400 second-feet May 14 (gage height, 8.27 

reetj; minimum, 38 second-feet Sept. 25.

1930-49: 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 except those'for fSeriod O f no gage-height record, which are f?ir. 

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 1948-49 (gage height, in feet, 

and discharge, in, second-feet)

Oct. 1 to Mar. 3 Mar. 4 to Sept. 30

0.4 183 1.7 870 4.0 3,600 -0.2 39 0.5 180 1.9 960 

.7 £90 2.2 1,300 5.0 '5,320 -.1 52 .7 245 2.5 1,560 

1.0 420 2.7 1,830 6.4 8,160 ' .1 84 1.0 370 3.4 2,710 

J.3 5S5 3.4 2,710 7.5 10,600 .3 127 1.4 595

Note.- Sane as preceding table above 3.4 

fee~E^ 

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

Z 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

239 

237 

275 

261 

330

277 

307 

311 

301 

344

268 

307 

366 

351 

380

398

402 

411 

425 

420

420 

420 

376 

210 

425

402 

416 

405 

406 

420 

440

MOV.

450 

846 

1,400 

1,940 

950

706 

585 

549 

514 

520

503 

498 

470 

430 

503

525 

555

585 

555 

537

498 

486 

508 

503 

481

481 

498 

498 

470 

492

Dec.

465 

486 

537 

598 

598

832 

720 

750 

735 

671

637 

618 

1,250 

1,390 

1,050

870 

942 

926 

810 

758

750 

758 

720 

692 

650

720 

1,060 

1,040 

870 

795 

685

Jan.

765 

1,210 

984 

795 

720

735 

758 

742 

720 

664

585 

671 

a740 

a700 

a650

a 600 

a600 

a630 

664 

706

699 

758 

630 

604 

618

561 

637 

573 

525 

508 

520

Feb.

555 

630 

604 

637 

934

788 

1,090 

984 

878 

848

1,710 

1,480 

992 

855 

802

758 

802 

870 

976 

1,110

1,180 

1,190 

,410 

,590 

,610

,580 

,630 

,600

Month

Goto 

Nove 

Deee

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

1,570 

2,250 

9,720 

5,960 

3,810

2,910 

2,470 

2,240 

2,040 

2,140

3,570 

4,330 

3,550 

2,910 

2,570

3,950 

4,230 

3,550 

3,540 

3,440

3,100 

3,240 

3,620 

3,320 

2,790

2,170 

2,080 

2,310 

2,140 

2,000 

1,860

Apr,

1,730 

1,740 

1,830 

2,030 

2,520

3,100 

3,570 

3,580 

3,890 

4,730

5,600 

6,050 

5,990 

6,210 

6,550

7,000 

7,740 

7,360 

7,190 

6,820

7,360 

8,600 

9,050 

9,140 

8,560

7,380 

.7,510 

6,920 

6,650 

5,850

Secondfoot-days

, 10,950 

18,536 

24,383

738,584

21,272 

30,093 

99,380 

172,250 

171,290 

43,211 

6,728 

2,865 

2,117

603,075

Peak discharge (base, 12,000 sec. -ft.).- Mar. 3 (12 m

May

5,870 

6,630 

6,030 

5,990 

5,800

5,660 

5,930 

5,810 

5,120 

4,780

5,830 

7,110 

7,950 

10,400 

9,010

6,800 

6,750 

5,320 

4,530 

4,380

3,820 

3,820 

4,120 

4,600 

4,920

5,120 

4,730 

4,230 

3,700 

3,420 

3,110

Maximum

440 

1,940 

1,390

13,800

1,210 

1,710 

9,725 

10,400" 9,14ft 

2,720 

405 

118 

158

10,400

June

2,720 

2,570 

2,440 

2,330 

2/540'

2,570 

2,580 

2,470 

2,300 

2,070

1,900 

1,710 

1,530 

1,460 

1,370

1,220 

1,120 

978 

896 

798

738 

688 

654 

634 

559

529 

499

470 

448 

420

July

405 

380 

356 

338 

324

311 

295 

282 

267 

271

245 

228 

214 

201 

192

228 

195 

160 

150 

147

180 

147 

137 

127 

172

163 

125 

120 

120 

132 

116

AU8.

118 

116 

106 

96 

92

92 

96 

92 

90 

92

90 

88 

90 

88 

88

94 

96 

94 

84 

84

86 

84

84 

84 

77

76 

79 

84 

98 

116 

111

Sept. .

158 

130 

90 

84 

88

82 

76 

79 

6T 

60.

64 

67 

77 

79 

72

61 

61 

62 

67 

82

74 

52 

46 

43 

39

39 

42 

49 

60 

67

Minimum Mean «««£

210 353 21,720 

430 618 36,770 

465 787 48,360

81 2,018 1,465,000

508 686 42,190 

555 1,075. 59,690 

1,570 3,206 197,100 

1,730 5,742 341,700 

3,110 5,525 339,700 

420 1,440 85,710 

116 217 13,340 

76 92.4 5,680 

39 70.6 4,200

39 1,652 1,196,000

) 12,000 sec. -ft.; May 14 (3 p.m.) 12,400

sec.-ft.

a Mo gage-height record; discharge computed on basis of records for Middle Pork American River 

near Auburn and American River at Pair Oaks. ______
AMERICAN RIVER BASIN 379

American'.River at Pair-Oaks, Calif.

Location.- Water-stage recorder, lat. 38°38'15", long. 121°15'55", just upstream from 

highway bridge at Fair Oaks, Sacramento County, and 10 miles downstream from South 

Pork. Altitude of gage, about 72 feet (from topographic map).

Drainage araaj.- 1,921 square miles.

Kecoras avall|able.- November 1904 to Sectember 1949 {at several sites near highway bridge)

Average aischargeT- 44 years (1905-49), 3,660 second-feet.

Extremes.- Maximum discharge during year, 37,500 second-feet Mar. 3 (gage height, 14.66 

reet); minimum, 93 second-feet Sept. 28.

1904-49: Maximum discharge, 140,000 second-feet Mar,. 25, 1928 (gage-height, 31.45 

feet, present datum), from rating curve extended above 75,000 second-feet; flood of 

Mar. 19, 1907, reached a stage of 31.41 feet, present datum (discharge probably about 

same as that of Mar. 25, 1928); minimum, 3.6 second-feet Aug. 16, 1924.

Remarks.-- Records excellent except those above 12,000 second-feet, which are good. Plow 

regulated by reservoirs and power pljants above station. Many diversions above station 

for irrigation. Some inflow from Bear and Yuba River Basins.

Revisions (water years).- W 861: 1928(M).

Hating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to June 12 June 13 to Sept. 30

0.9 335 3.0 2,380 8.0 12,300 0.2 123 1.0 436 3.0 2,400 

1.1 445 4.0 3,700 10.0 18,800 .4 174 1.3 660 4.0 3,700 

'1.3 595 5.O 5,230 12.0 26,200 .6 240 1.6 920 

1.6 845 6.0 7,080 .8 323 2.0 1,310 

2.0 1,260 7.0 9,450 ^ ,_ 

Hote.- Same as preceding table above 4.0 

feet.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

370 

a380 

a390 

3400 

3410

a 420 

421 

433 

466 

459

391 

433 

494 

523 

555

547 

508 

466 

501 

515

494 

487 

494 

355 

350

459 

473 

480 

480 

487 

494

Hov.

531 

659 

2,040 

2,670 

1,710

1,150 

875 

773 

707 

691

659 

643 

611 

587 

595

643 

723 

818 

782 

731

707 

675 

683 

619 

683

699 

675 

667 

619 

619

Dec.

627 

643 

699 

855 

836

1,130 

 1,220 

1,090 

1,170 

1,040

965 

895 

1,310 

2,250 

1,720

1,380 

1,430 

1,560 

1,350 

1,190

1,130 

1,140 

1,120 

985 

965

975 

1,540 

1,810 

1,440 

1,240 

1,160

Jan.

1,110 

2,040 

1,680 

1,280 

1,060

1,020 

1,180 

1,170 

1,060 

1,000

809 

827 

995 

1,090 

985

915 

855 

885 

965

1,150

1,080 

1,290 

1,370 

1,120 

1,020

955 

1,020 

955 

945 

915 

855

Feb.

895 

975 

975 

995 

1,600

1,510 

2,150 

2,000 

1,610 

1,480

2,970 

3,040 

1,920 

1,560 

1,460

1,390 

1,360 

1,420 

1,580 

1,700

1,830 

1,800 

2,240 

2,520 

2,540

2,460 

2,610 

2,460

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary . * ... .

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

ter year 1948-49 .......................

Mar.

2,370 

3,470 

25,500 

14,100 

7,340

5,260 

4,270 

3,820 

3,370 

3,730

6,160 

7,610 

6,280 

4,940 

4,300

7,130 

7,410 

5,810 

5,840 

5,820

5,100 

5,120 

6,440 

5,770 

4,850

4,000 

3,550 

3,920 

3,640 

3,3BO 

3,180

Apr.

2,900 

2,820 

3,000 

3,060 

3,700

4,460 

5,130 

5,330 

5,52O 

6,340

7,670 

8,650 

8,780 

9,020 

9,560

10,200 

11,200 

10,800 

10,500 

10,100

10,600 

12,500 

13,500 

14,000 

13,400

11,500 

11,500 

10,700 

10,100 

9,080

Secondfoot-days

14,135 

25,244 

36,865

1,144,663

33,601 

51,050 

183,430 

255,620 

260,910 

77,973 

11,500 

5,701 

4,960

960,989

Peak discharge (base, 20,000 sec. -ft.).- Mar. 3 (4 p.m

May

8,900 

9,800 

9,050 

8,850 

8,580

8,450 

8,720 

8,650 

7,630 

6,960

8,320 

10,400 11,600- 

14,400 

14,500

10,200 

10,600 

8,500 

7,120 

6,940

6,200 

5,980 

6,420 

7,120 

7,670

8,010 

7,700 

6,940 

6,000 

5,550 

5,150

Maximum

555 

2,670 

2,250

17,600

2,040 

3,040 

25,500 

14,000 

14,500 

4,510 

776 

1 233 

222

25,500

June

4,510 

4,180 

4,080 

3,940 

4,280

4,400 

4,460 

4,260 

4,080 

3,780

3,550 

3,210 

2,800 

2,620 

2,590

2,470 

2,170 

1,940 

1,810 

1,590

1,450 

1,370 

1,280 

1,220 

1,140

1,020 

1,040 

956 

920 

857

July

776 

732 

660 

620 

596

572 

520 

47O

457 

436

381 

359 

323 

305 

296

292 

318 

267 

248 

219

222 

270 

236 

255 

240

274 

244 

226 

230 

244 

212

Aug.

222 

222 

233 

216 

199

186 

193 

199 

186 

186

193 

183 

186 

180 

183

180 

180 

177 

171 

166

155 

166 

166 

163 

169

155 

155 

183 

152 

208 

208

Minimum Mean

350 456 

531 841 

627 1,189

184 3,127

809 1,084 

895 1,823 

2,370 5,917 

2,820 8,521 

5,150 8,416 

857 2,599 

212 371 

152 184 

142 165

142 2,633

Sept.

208 

222 

180 

150 

155

158 

150 

158 

152 

145

142 

155 

174 

142 

166

166 

158 

155 

160 

166

183 

177 

169 

166 

147

160 

183 

147 

180 

186

Runoff In 

acre-feet

28.04O 

50,070 

73,120

2,270,000

66,650 

101,300 

363,800 

507,000 

517,500 

154,700 

22,810 

11,310 

9,84O

1,906,000

. ) 37,500 sec. -ft.

a No gage-height record; discharge computed on bssls of records for station at Sacramento.
380 AMERICAN RIVER BASIN

American River at Sacramento, Calif.

Location.- Water-stage recorder, lat. 38°34'05", long. 121°25'20", at H Street Bridge, 

,lust 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 DecemDer 1942 (low-water periods only), May 1943 to September 1949.

Extremes.- Maximum discharge during year, 29,800 second-feet Mar. 3 (gage height, 31.23 

reet); minimum, 119 second-feet Sept. 14 (gage height, 18.13 feet).

1921, 1929-32, 1934-49: Maximum discharge unknown; minimum discharge recorded, 21 

second-feet Aug. 14, 1931.

Remarks.- Records good. Flow regulated by reservoirs and power plants above station. 

Many diversions above station for irrigation. Some inflow from Bear and 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

424 

394 

386 

401 

424

438 

401 

438 

486 

446

478 

446 

470 

534 

526

543 

534 

486 

502

526

526 

526 

526 

462 

336

502 

486 

510 

518 

518 

518

Nov.

551 

602 

1,630 

2,540 

1,680

1,100 

870 

780 

700 

700

673 

655 

628 

610 

602

646 

720 

800 

800 

750

710 

682 

700 

673 

655

710 

673 

673 

628 

619

Dec.

610 

619 

673 

760 

810

870 

1,140 

980 

1,040 

990

310 

870 

930 

2,090 

1,660

1,340 

1,300 

1,410 

1,290 

1,110

1,020 

1,050 

1,020 

940 

940

910 

1,280 

1,700 

1,400 

1,180 

1,080

Jan.

1,000 

1,780 

1,630 

1,250 

1,010

960 

1,070 

1,120 

1,040 

970

850 

810 

910 

1,010 

970

920 

850 

860 

940 

1,050

1,010 

1,170 

1,320 

1,070 

1,000

930 

960 

930 

910 

890 

850

Feb.

900 

920 

940 

960 

1,360

1,490 

1,840 

1,920 

1,530 

1,350

2,350 

3,080 

1,910 

1,450 

1,360

1,300 

1,250 

1,290 

1,450 

1,570

1,690 

1,680 

1,970 

2,360 

2,400

2,320 

2,400 

2,350

Month

Ooto 

Move 

Dece

Ca

Jamu 

Pebp 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2,240 

2,540 

19,100 

16,800 

8,580

5,990 

4,450 

3,700 

3,240 

3,380

6,040 

8,510 

7,180 

5,030 

4,330

6,620 

8,680 

6,400 

6,170 

6,620

5,430 

5,180 

7,060 

5,370 

5,240

4,430 

3,690 

3,780 

3,570 

3,190 

3,100

Apr.

2,740 

2,660 

2,800 

2,860 

3,380

4,190 

4,960 

5,360. 

5,400 

6,280

7,590 

8,780 

8,880 

9,060 

9,660

10,100 

11,100 

11,000 

10,700 

10,300

10,600 

12,100 

13,100 

13,600 

13,100

11,600 

11,300 

10,900 

10,300 

9,520

Secondfoot -days

14,711 

24,760 

33,%22

,1,176,325

32,040 

47,390 

185,640 

253,920 

267,690 

73,387 

11,755 

5,769 

5,115

956,099

May

9,060 

9,960 

9,520 

9,170 

9,040

8,880 

8,970 

8,990 

8,180 

7,270

8,230 

10,500 

11,600 

13,000 

14,800

10,600 

10,800 

9,220 

7,610 

7,270

6,480 

6,060 

6,570 

7,310 

7,860

8,320 

8,050 

7,310 

6,240 

5,650 

5,170

Maximum

543 

2,540 

2,090

19,500

1,780 

3,080 

19,100 

13,600 

14,800 

4,510 

720 

249 

249

19,100

June

4,510 

4,030 

3,930 

3,800 

4,110

4,190 

4,350 

4,070 

3,900 

3,530

3,310 

3,130 

2,690 

2,400 

2,410

2,350 

2,030 

1,820 

1,680 

1,460

1,300 

1,200 

1,120 

1,050 

947

855 

885 

796 

776 

758

July

Minimum

336 

551

610

176

810 

900 

2,240 

2,660 

5,170 

758 

215 

152 

152

152

720 

701 

656 

603 

569

552 

527 

480 

473 

450

399 

366 

372 

326 

320

302 

333 

302 

260 

249

215 

254 

260 

254 

249

284 

272 

249 

249 

249 

260

Aug.

226 

232 

238 

249 

215

199 

134 

210 

204 

188

194 

188 

183 

173 

178

173 

178 

173 

168 

162

157 

152 

157 

157

162

157 

152 

157 

168 

199 

226

Mean

475 

825 

1,094

3,214

1,034 

1,692 

5,988 

8,464 

8,635 

2,446 

379 

186 

170

2,619

Sept.

215 

249 

232 

162 

157

162 

163 

162 

173 

162

152 

152 

157 

168 

152

162 

157 

152 

152 

152

157 

178 

168 

162 

157

157 

168 

183 

188 

199

Runoff In 

acre-feet

29,180 

49,110 

67,280

3,333,000

63,550 

94,000 

368,200 

503,600 

531,000 

145,600 

23,320 

11,440 

10,150

1,896,000
AMERICAN RIVER BASIN 381

Middle Pork American River near Auburn, Calif.

Location,- Water-stage recorder, lat. 38°55', long. 121°00', in NW£ see. 5, T. 12 N., R. 9 

E. , at Mountain Quarry Co.'s plant, 1.7 miles upstream from mouth and 3.5 miles northeast of Auburn. Datum of gage is 568.5 feet above mean sea level (river-profile survey) .

Drainage area.- 619 square miles.

Reeoras available.- December 1930 to September 1949. October 1911 to December 1930 at 

site nair a mile downstream.

Average discharge.- 38 years, 1,349 second-feet.

Extremes.- Maximum discharge during year, 8,700 second-feet May 14 (gage height, 12.70 

reet); minimum, 47 second-feet Sept. 25.

1911-49: Maximum discharge, about 62,000 second-feet Mar. 25, 1928 (gage height, 

35.6 feet, former site and datum; 33.4 feet, present site and datum, from floodmarks); 

minimum, 20 second-feet Sept. 6, 1931, Sept. 19. 1934.

Remarks.- Records gbod. Small storage and diversions above station.

Revisions (water years).- W 861: 1928.

Rating tables, water year 1948-49 (gage height. In feet, 

and discharge, In second-feet)

Oot. 1 to May 14 May 15 to Sept. 30

1.9 62 4.0 505 8.5 3.07O 1.7 46 2.9 227 5.0 930 

2.2 90 4.5 690 9.5 3,980 1.9 63 3.4 354 5.5 1,170 

2.5 131 5.0 910 10.5 5,120 2.2 99 4.0 540 6.5 1,700 

2.8 182 S-.5- 1,150 12.0 7,400 2.5 146 4.5 722 

3.2 272 6.5 1,700 

3.6 380 7.5 2,320 Note.- Same as preceding table above 

6.5 feet.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

68 

66 

65 

64 

66

67 

66 

66 

63 

63

63 

86 

73 

75 

78

79 

77 

74 

72 

72

71 

71 

71 

73 

76

71 

69 

68 

68 

72 

83

Nov.

90 

476 

864 

1,190 

446

282 

202 

168 

144 

128

118 

112 

106 

102 

109

124 

147 

162 

141

131

126 

119 

113 

108 

105

105 

110 

106 

101 

101

Dec.

100 

98 

126 

157 

157

277 

198 

234 

229 

198

182 

178 

528 

540 

374

301 

321 

319 

270 

243

243 

248 

224 

217 

178

229 

389 

352 

290 

253 

241

Jan.

349 

446 

335 

241 

224

270 

272 

262 

248 

182

139 

206 

243 

220 

194

a!75 

3170 

177 

182 

202

200 

272 

248 

213 

182

209 

211 

198 

192 

192 

192

Feb.

190 

192 

206 

241 

311

306 

389 

346 

306 

324

674 

519 

380 

338 

316

306 

311 

352 

386 

428

452 

458 

622 

666 

670

650 

890 

650

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

MRV

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

634 

1,030 

4,070 

2,510 

1,600

1,170 

973 

879 

793 

865

1,530 

1,800 

1,480 

1,180 

1,050

2,000 

2,010 

1,670 

1,680 

1,580

1,430 

1,500 

1,580 

1,420 

1,220

1,080 

1,080 

1,270 

1,180 

1,100 

1,020

Apr.

1, 

1, 

1,

1, 

2, 

2, 

2, 

2,

3, 

3, 

3, 

4, 

4,

4, 

5, 

4, 

4, 

4,

6, 

5, 

5, 

5, 

5,

4, 

5, 

4, 

4, 

3,

Secondfoot-days

2,176 

6,336 

7,894

439,917

7,046 

11,679 

44,384 

112,000 

115,760 

31,668 

5,758 

2,510 

1,679

348,890

Peak discharge (base, 6,500 sec. -ft.).- Apr. 24 (3:30

955 

995 

050 

210 

540

980 

270 

230 

460 

920

590 

780 

840 

050 

300

640 

020 

820 

700 

480

000 

650 

970 

980 

530

940 

010 

680 

490 

920

May

3,960 

4,540 

4,070 

4,090 

3,930

3,850 

4,010 

4,010 

3,430 

3,260

4,160 

5,110 

5,310 

7,400 

5,620

4,520 

4,460 

3,460 

3,010 

2,890

2,580 

2,570 

2,830 

3,060 

3,280

3,360 

3,170 

2,860 

2,530 

2.-330 

2,100

Maximum

83 

1,190 

540

8,410

446 

690 

4,070 

5,980 

7,400 

1,870 

343 

107 

72

7,400

June

1,780 

1,700 

1,670 

1,680 

1,870

1,810 

1,860 

1,800 

1,610 

1,520

1,500 

1,300 

1,170 

1,110 

1,020

930 

836 

749 

695 

610

560 

526 

500 

474 

442

430 

406 

391 

365 

354

July

343 

321 

305 

290 

279

269 

252 

243 

229 

218

207 

199 

188 

182 

174

166 

157 

150 

143 

138

131 

127 

124 

121 

121

127 

116 

113 

110 

109 

106

Aug.

107 

105 

99 

95 

94

91 

89 

87 

85 

85

85 

85 

89 

82 

79

79 

76 

75 

74 

71

70 

68 

68 

67 

66

63 

63 

68 

84 

86 

75

Minimum Mean

63 70. 2 

90 211- 

98 255

63 1,202

139 227 

190 417 

634 1,432 

955 3,733 

2,100 3,734 

354 1,056 

106 186 

63 81.0 

47 56.0

47 956

Sept.

72 

66 

62 

59 

58

57 

56 

57 

56 

56

56 

56 

56 

55 

55

54 

53 

52 

60 

70

57 

51 

50 

48 

47

48 

50 

52 

55 

55

Runoff In 

acra-feet

4,320 

12,570 

15,660

872,500

13,980 

23,160 

88,030 ' 

222,100 

229, 60Q 

62,810 

11,420 

4,980 

3,330

692,000

a.m.) 7,220 sec. -ft.; May 14 (llsSO a.m.)

8,700 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range In stage.
382 AMERIC/OI RiVER BASIN

Rubicon River near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°58', long. 120°29', in SE£ see. 23, T. 13 N., R. 

13 fi., 1 mile downstream from Little South Fork Rubicon River and 20 miles east of 

Georgetown. Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.- 198 square miles (by Bureau of Reclamation).

Records available.- May 1943 to September 1949. November 1909 to June 1914 (published as 

Kubieon Kiver near Quintette, Calif.

Extremes.- Maximum discharge during year, 4,740 second-feet May 14 (gage height, 10.00 

reet), from rating curve extended above 2,100 second-feet by logarithmic plotting; 

minimum, 8.1 second-feet Sept. 23.

1943-49: Maximum discharge 9,620 second-feet Feb. 2, 1946 (gage height, 13.25 feet), 

from rating curve extended above 2,100 second-feet by logarithmic plotting; minimum, 

514 second-feet Oct. 28, 1944.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wtiicn are fair. Flow 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).

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.2 7.6 2.2 52 5.0 610 

1.3 10 2.6 84 6.0 1,080 

1.4 13 3.0 128 7.5 2,160 

1.5 16 3.5 206 8.5 3.O6O 

1.7 24 4.0 308 9.0 3,580 

1.9 33 4.5 438 9.6 4,260

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

11.' 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

11 

10 

10 

10 

9.9

9.9 

11 

10 

9.4 

9.4

9.4 

9.4 

9.9

10 

10

10 

9.9 

9.4 

8.9 

9.2

9.2

9.4 

9.4 

9.4 

9.2

8.9 

8.9 

9.2 

10. 

12 

12

Nov.

78 

657

861 

376 

152

96 

73 

56 

45 

39

35 

33 

31 

29 

32

35 

51 

47 

42 

43

40 

34

33 

33 

35

36 

30 

30 

30 

27

Dec.

27 

27 

31 

29 

37

42 

49 

63 

62 

59

57 

64 

135 

8.6 

b70

b74 

b70 

b66 

b64 

b68

b70 

b66 

b62 

b60 

b6 2

b66 

b70 

b66 

b64 

b64 

b66

Jan.

b70 

b62 

b58 

a56 

a58

a60 

a60 

a56 

a54 

a52

a52 

a54 

a52 

352 

350

348 

348 

a48 

»b50 

b50

b50 

b50 

b50 

a52 

352

352 

350 

350 

352 

352 

352

Feb.

350 

350

35O

a52 

b52

b52 

b50 

a52 

a54 

a56

a56 

354 

354 

354 

a54

a56 

a60 

a68 

a76 

388

a9£ 

392 

bl08 

124 

133

152 

152 

160

Month

Octo 

Nove 

Dece

Ca

Janu, 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

157 

166 

174 

152 

151

138 

137 

128 

131 

149

197 

171 

161 

168 

176

252 

262

286 

315 

295

293 

306 

262 

224 

208

215 

290 

361 

297 

268 

240

Apr.

248 

293 

308 

416 

578

730 

806 

825 

990 

1,260

1,520 

1,540 

1,620 

1,810 

1,870

2,130 

2,180 

2,100 

2,020 

2,060

2,420 

2,650 

2,860 

2,830 

2,490

2,280 

2,300 

2,180 

1,980 

1,840

Secondfoot-days

 304.3 

3,139 

1,896

193,653.2

1,652 

2,149 

6,730 

49,134 

62,400 

18,761 

2,165 

572 

292.0

149,194.3

Peak discharge (base, 3,500 sec. -ft. ) .- Apr. 23 (9:30

May

2,080 

2,200 

2,070 

-2,050 

2,010

1,990 

2,080 

2,030 

1,650 

1,820

2,520 

2,930 

2,890 

4,180 

2,790

2,620 

2,330 

1,780 

1,540 

1,400

1,240 

1,440 

1,730 

1,890 

2,050

2,000 

1,830 

1,600 

1,400 

1,230 

1,030

Maximum

12 

861 

135

3,390

70 

160 

361 

2,860 

4,180 

1,160 

150 

30 

12

4,180

June

895 

915 

925 

1,040 

1,130

1,160 

1,160 

1,090 

985 

970

940 

802 

752 

718 

666

622 

541 

468 

388 

337

310 

286 

264 

236 

226

a215 

3200 

a!90 

a!70 

a!60

July

a!50 

" a!40 

a!30 

3130 

a!20

allO

3110

alOO 

a95 

a90

a85

78 

73 

69 

65

61 

54 

52 

45 

42

39

37 

34 

34 

35

34

33 

32 

39 

29 

29

Aug.

28 

28 

30 

27 

25

24 

22 

22 

21 

21

25 

20 

19 

18 

18

17 

16 

16 

15 

14

14 

14 

13 

12 

12

11 

11 

15 

16 

15 

13

Sept.

12 

12

11 

11 

11

10 

10 

9.9 

9.9 

9.9

9.9 

9.9 

9.9 

9.7 

9.4

8.9 

8.9 

8.6 

8.9 

8.6

8.9 

8.6 

8.9 

9.4 

9.4

9.2 

9.2 

9.7 

9.4 

9.9

Minima Mean *£«£

8.9 9.82 604 

27 105 6,230 

27 61.2 3,760

8.9 529 384,100

48 53.3 3,280 

50 76.8 4,260 

128 217 13,350 

248 1,638 97,460 

1,030 2,013 123,800 

160 625 37,210 

29 69.8 4,290 

11 18.5 1,130 

8.6 9.73 579

8.6 409 296,000

a.m.) 3,510 sec. -ft. ; .May 14 (7:3O a.m.)

4,740 sec.-ft.

* Winter discharge measurement made on this dsy.

a No gage-height record; discharge computed on bssis of records for Silver Creek near Placerville 

snd at Union Valley.

b Stsge-dischsrge relation affected by ice.
AMERICAN RIVER BASIN 383

Georgetown ditch above Pilot Creek, near Georgetown, Calif.

Location.- Water-stage recorder and wooden control, lat.- 38°56', long. 120°29', in SW£ 

sec. 35, T. 13 N,, R. 13 E., 0.5 mile northeast of Uncle Toms Cabin and 30 miles east 

of Georgetown. Prior to June 10, 1949, staff gage at same site but at different datum. 

Altitude of gage, about 5,070 feet (from"topographic map).

Records available.- May 1947 to September 1949.

Extremes.- Maximum daily discharge during year, 27 second-feet Aug. 15-19; no flow for 

several months.

1947-49: Maximum daily discharge, that of Aug. 15-19, 1949; no flow for several 

months each year.

Remarks - Records good. Ditch diverts from Gerle Creek, Rubicon River Basin, into Pilot 

creek and at times from Little South Fork-Rubicon River. Flow is then diverted from 

Pilot Creek, about 8 miles downstream, for domestic and irrigation purposes in vicinity 

.of Georgetown (see Georgetown ditch near Georgetown, p. 385).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

1920

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

a!9 

19 

a 18 

16

a 15 

15 

alS 

15 

IS

a!5 

15 

a 15 

a!6 

a 16

a!7 

a!8 

18 

a 18 

18

Nov. Dec. Jan. Feb.

Month

Octo 

Nove 

Deoe

Ca

janu 

Febr 

Marc 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

ber 1-20

lendar year 

ary

ter year .......................

Mar. Apr.

Secondfoot-days

332

-

60.9 

668 

752 

584

-

May

Maximum

19

-

12 

25 

27 

21

-

June

0 

0 

0 

0 

0

0 

0 

0 

O 

0

O 

0 

0 

0 

Q

0 

0 

0 

0 

O

0 

0 

0

1.4 

8.9

10 

7.4 

9.2 

12 

12

July

12 

15 

17 

18 

18

19 

20 

21 

21

21

21 

22 

22 

22 

22

22 

22 

322 

22 

23

23 

23 

24 

24 

24

24 

24 

25 

25 

25 

25

Minimum

15

-

0 

12

19 

15

-

Aug.

25 

25 

25 

25 

25

25 

25 

25 

25 

24

a 25 

26 

26 

26 

27

27 

27 

27 

27 

26

26 

26 

19 

22 

21

21

21 

22 

21 

20 

20

Mean

16.6

-

2.03 

21.5 

24.3 

19.5

-

Sept.

19 

19 

20 

20 

20

20 

20 

20 

21 

21

21 

21 

21 

20 

20

19 

19 

20 

20 

19

19 

18 

20 

20 

20

19 

18 

18 

17 

15

Runoff in 

acre-feet

659

-

121 

1,320 

1,490 

1,160

-

a No gage-height record; discharge interpolated. 

Note.- Practically no flow November to May.
384 AMERICAN RIVER BASIN

Pilot Creek near Georgetown, Calif.

Location.- Water-stage recorder, 'lat. 38"54', long. 120°29', in NE^ sec. 10, T. 12 N., R. 

is 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 1949. February 1910 to July 1914 (published 

as fiiot ureeK near Quintette).

Extremes.- Maximum discharge during year, 190 secondrfeet Apr. 23 (gage height, 7,75 feet); 

minimum, 0.4 second-foot July 1.

1946-49: Maximum discharge, 218 second-feet Apr. 17, 1948; minimum, 0.4 secondfoot Aug. 16-20, 1946, July 1, 1949.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

whicfi 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 second-feet, water year October 1948 to September 1949

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.

0.8 

.7 

.6 

.6 

.6

.6 

.6 

.8 

2.3 

4.7

6.3 

8.5 

10 

12

11

11 

11 

11 

9 

6

6 

4 

2

2

1

1 

1 

1 

1

1 

2

Nov.

5 

15 

25 

15 

5

2 

2

2 

2 

2

1 

1 

1

1 

1

2

2 

2

2 

2

1

1 

1 

1 

1

1.1 

1.2 

1.1 

1.0

1.1

Dec.

1.1 

1.1 

1.4 

1.2 

3.6

8.5 

6.7 

7.6 

5.4 

3.4

2.3 

4.1 

15 

10 

17

10 

8.3 

6.9 

6.5 

6.0

5.4 

4.9 

6.5 

5.6 

6.3

6.7 

7.6 

6.5 

6.1 

11 

6.9

Jan.

10 

8.7 

b8 

b8 

b8

b8 

7.8 

7.4 

b7 

b7

b7 

b7 

b7 

7.2 

8.0

6.9

6.9 

7.2 

13 

9.0

8.0 

13 

11 

9.0 

9.2

9.7 

9.7 

10 

10 

9.7 

9.0

Feb.

8.7 

9.7 

11 

15 

18

15

14

13 

12 

12

Month

OOto 

Hove 

Dece

Ca

Janu. 

Febr 

Marc 

Apri

M» v

June 

July 

Augu 

Sept

Wa

Lender year 1948

ter year 1948-49 .......................

Mar.

13 

17 

23 

22 

19

15 

14 

14 

13 

16

24

21 

19 

17 

16

32 

37 

30 

25 

24

23 

22 

20 

16 

14

14 

16 

17 

15 

16 

14

Apr.

15 

18 

22 

28 

37

44 

48 

51 

60 

75

92

100 

10S 

118 

129

140 

149 

151 

149 

147

154 

164 

171 

170 

151

142 

129 

125 

125 

106

Secondfoot-days

130.1 

100.5 

199.6

7,144.2

267.4 

398.4 

598 

3,116 

1,310.7 

47.8 

25.4 

23.3 

19.5

6,236.7

May

100 

95 

87 

80 

73

68 

64 

61 

55 

52

49

50 

48 

52 

46

41 

36 

32 

33 

32

28 

25 

22 

19 

15

12 

9.0 

7.6 

6.1 

6.7 

6.3

Maximum

12 

25

15

202

r 13

18 

37 

171 

100 

4.7 

1.0 

1.2 

1.1 .

171

June

4.7 

3.6 

2.7 

1.9 

1.8

1.9 

1.8 

1.9 

1.7 

1.5

1.6

1.6 

1.5 

1.4 

1.3

1.3 

1.3 

1.2 

1.2 

1.1

1.1 

1.1 

1.1 

1.1 

.9

1.1 

1.1 

1.1 

1.1 

1.1

Minimum

July

0.6 

1

1.1

.6

6.9 

8.7 

13 

15 

6.1 

.9 

.4 

.5 

.5

.4

0.4 

.7 

.8 

.8 

.8

.8 

.8 

.9 

.9 

1.0

1.0 

1.0 

1.0 

1.0 

1.0

.9

.8 

.8 

.6 

.7

.8 

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.7 

.8

Aug.

0.8 

.5 

.5 

.6 

.6

.7 

.8 

.8 

.8 

.8

.8 

.6 

.7 

.7 

.8

.8 

.3 

.8 

.8 

.8

.8 

,8 

.8 

.6 

.5

.5 

.6 

1.2 

1.2 

1.0 

.8

Mean

4.20 

3.35 

6.44

19.5

8.63 

14.2 

19.3 

104 

42.3 

1.59 

.82 

.75 

.65

17.1

Sept.

0.8 

.6 

.6 

.6

,7

.6 

.6 

.6 

.6 

.6

.6 

.6

.7 

.7 

.7

.6 

.6 

.6 

.6 

.6

.6 

.6 

.5 

.6

.7

.7 

.7 

1.1 

.8 

.6

Runoff in 

acre-feet

258 

199 

396

14,170

530 

790 

1,190 

6,180 

2,600 

95 

50 

46 

39

12,370

ft~ Peak discharge (base,  

150 see.-ft.).- Apr. 25 (ll p.m.) 190 sec.-ft.; Apr. 28 (11 p.m.) 152 sec.- 

b Stage-discharge relation affected by Ice.

Note.- No gage-height record Oct. 16 to Nov. 25, Feb. 6-24; discharge computed on basis of records 

for Rubicon River near Georgetown and Silver Creek near Placerville.
AMERICAN RIVER BASIN 385

Georgetown ditch near Georgetown, Calif.

Location.- Water-stage recorder, lat. 38°54', long. 120°37', in NE£ sec. 10, T. 12 N., R. 

12 K . , 12 miles 'east of Georgetown.

Records available . - March 1947 to September 1949. 

as Filot ureek ditch near Quintette } .

February 1910 to January 1914 (publishedExtremes.- Maximum daily discharge during year, 30 second-feet on many days during July 

ana August; minimum daily,- less than 0.5 second-foot during period of ice effect.

1947-49: Maximum daily discharge, 30 second-feet Sept. 25-27, 1948, and on many 

days during July and August 1949; minimum daily, less than O.ri 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.)

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

31 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

18 

19 

18

18

18 

16 

16

14 

12

10 

9.4 

8.8 

8.4 

8.2

8.1 

7.7 

7.7 

9.6 

13

13 

11 

2.5 

6.8 

11

11 

11 

11 

11 

11 

11

Nov.

11

8.5 

8.7 

7.7 

7.3

7.0 

6.8 

6.8 

6.8 

6.8

6.6 

6.6 

6.6 

6.6 

6.7

6.8 

6.8 

7.8 

8.1 

7.7

7.0 

6.8 

6.8 

6.6 

6.6

6.8 

7.8 

7.7 

7.7 

8.0

Dec.

7.0 

6.6 

7.2 

8.4 

10

a?

Jan.

: aO.5

Feb.

' aO.5

(*) 

K5

Month

00 to 

Nove 

Deoe

Ca

Janu 

Febp 

Marc 

Apr!

tfflv

June 

July 

Augu 

Sept

Wa

lendar year 1948 

wy

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

ter year 1948-49 ...............

Mar.

bl

11 

11

11 

11 

11 

11 

10

10 

10

11 11

10 

10

Apr.

10 

11 

11 

12 

12

12

13 

13 

13

14

14 

14 

15

15 

16

16 

16 

16 

17 

17

17 

17 

14 

9.2 

8.7

8.1 

9.8 

12 

12 

11

Secondfoot-days

368.2 

219.5 

221.2

5,503.7

15.5 

14.0 

156 

395.8 

466 

529 

867 

888 

709

4,849.2

May

11 

11 

11 

10

11

12 

12

12 

12 

12

13 

14 

15 

15 

15

15 

16 

' 16 

16 

16

15 

. 15

15 

16 

17

18 

20 

20 

21 

22 

22

Maximum

19 

11

30

'11 

17 

22 

22 

30 

30 

25

30

June

21 

21 

21 

21 

21

20 

20 

19 

18 

18

17 

17 

16 

16 

16

15 

15 

15 

16 

15

14

14 

13

13 

16

19 

19 

20 

21 

22

July

22

24 

25 

26 

26

27 

28 

28 

28 

28

28 

28 

28 

28 

29

29 

29 

27 

29 

29

29 

29 

29 

29 

29

29 

29 

29 

29 

30 

30

Minimum

2.5 

6.6

-

8.1 

10 

13 

22 

25 

20

-

Aug.

29 

29 

29 

29 

29

29 

30 

30 

30

30

25 

30 

30

30 

30

30 

30 

30 

30 

30

29 

3Q 

26 

26 

26

26 

26 

30 

28 

26 

26

Mean

11. 9 * 

7.3? 

7.14

15.0

,50 

.50 

5.03 

13.2 

15.0 

17.6 

28.0 

28.6 

23.6

13.3

Sept.

25 

24 

25 

25 

25

24 

24 

24 

24 

25

25 

25 

25 

24 

24

24 

23 

23 

24 

23

22 

22 

23 

23 

23

23 

23 

23 

22

20

Runoff In 

acre-feet

730 

435 

439

10,910

31 

28 

309 

785 

924 

1,050 

1,720 

1,760 

1,410

9,620

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of water requirements for Georgetown and 

weather records, 

b Stage-discharge relation affected by ice.
386 AMERICAN RIVER BASIN

South Pork American,River near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38M6S long. 120°19', in S| sec. 29, T. 11 N., R.

 li> E., beside Lincoln Highway, 0.7 mile downstream from Silver Pork of South Pork and

2 miles west of-Kyburz. Altitude of gage, about 4,030 feet (from topographic map). 

Drainage area.- 196 square miles.

Kecoras available.- August to December 1907, October 1922 to September 1949. 

Average aisehargeT- 27 years (1922-49), 370 second-feet, combined flow of South Pork Amerlean Kiver near Kyburz and El Dorado Canal. 

Extremes.- Maximum discharge during year, 2,360 second-feet May 14 (gage height, 5.77

reef); minimum not determined.

1922-49: 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.

 ftemarks.- Records good except those below 50 second-feet, which are fair. Plow partly 

regulated by four reservoirs since beginning of record (total usable capacity now 

35,000 acre-feet). Diversions above station. (S"ee 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, vater year 1948-49, except periods of ice effect

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 1-16, Aug. 27 to Sept. 30)

1.3 3.6 2.0 47 3.6 420 

1.4 5.7 2.3 83 4.0 628 

1.5 9.0 2.6 130 4.5 975 

1.6 14 2.9 192 5.0 1,420 

1.8 28 3.2 272 5.6 2,110

_ Discharge, in second-feet, water year October 1948 to September 1949

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 

Z5

26 

27 

26 

29 

30 

31

Oct.

6.0 

6.7 

5.7 

5.5 

6.4

5.3 

6.0 

7.0 

7.4 

6.4

6.4 

7.0 

7.7 

6.0 

6.0

38 

60 

55 

54 

52

50 

47 

43 

41 

39

36 » 

34 

35 

34 

37 

38

Nov.

67 

202 

206

125 

76

66- 

62 

55 

51 

39

8.0 

6.0 

6.0 

5.5 

5.3

5.7 

6.7 

5.3 

6.4 

6.0

6.0 

6.0 

5.7 

5.3 

5.3

5.1 

4.9 

4.9 

5.1 

6.0

Dec.

6.0 

6.0 

6.0 

5.7 

6.7

6.4 

7 

7 

6 

5.5

5 

4.5 

11 

6.7 

6.0

5.7 

6.4 

5.7 

6.0 

5.7

5.7 

5.5 

5.5 

5.5

< b6

Jan.

I b6 

, b!5

' b20

Feb.

I D10

t>5.5

5.5 

8.7 

7.7 

6.4 

7.7

6.0 

6.4 

7.0 

7.0 

6.0

6.7

6.4 

6,0

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lender year 1948

uary . . .

St......................................

ter year 1948-49 .......................

Mar.

5.5 

5.1 

5.5 

5.3 

5.3

5.1 

5.7 

5.1 

5.3 

12

11 

5.1 

5.3 

6.4 

6.7

16 

18 

20 

35 

25

28 

41 

34 

12 

9.0

11 

44 

50 

23 

20 

12

Apr.

10 

20 

22 

57 

104

168 

197 

181 

252 

369

506 

565 

611 

685 

731

855 

893 

848 

841 

916

1,140 

1,270 

1,480 

1,560 

1,430

1,340 

1,330 

1,210 

1,080 

1,030

Secondfoot -days

788.5 

1,064.2 

189.2

96,364.7

475 

192.5 

492.4 

21,701 

34,494 

11,410 

203.8 

196.9 

197.4

71,404.9

May

1,120 

1,180 

1,100 

1,090 

1,080

1,070 

1,030 

908 

697 

812

1,220 

1,340 

1,360- 

2,070 

1,470

1,490 

1,350 

1,050 

975 

926

730 

819 

960 

1,200 

1,400

1,400 

1,300 

1,100 

885 

791 

671

Maximum

60 

206

11

2,190

50 

1,560 

,2,070 

770 

15 

15 

7.7

2,070

June

532 

542 

548 

628 

756

770 

763 

723 

634 

646

611 

481 

378 

496 

548

399 

318 

298 

221 

155

145 

132 

118 

107 

100

94 

83 

71 

56 

45

July

15 

7.0 

6.7 

5.7 

5.7

5.5 

6.0 

6.7 

6.7 

7.0

7.0 

7.0 

6.7 

6.0 

5.5

5.1 

5.7 

6.0 

5,7 

10

7.0 

6.7 

5.5 

5.5 

5.5

. 5.3 

5.7 

6.0 

6.0 

5.7 

8.2

Aug.

15 

5 

5 

6 

6

6 

5 

5 

5 

5

5

6 

5 

5 

5

5 

5 

5 

6 

5

5 

6 

6 

5 

5

6 

9 

9 

7 

7 

7

Minimum Mean

5.3 25.4 

4.9 35.5 

4.5 6.10

4.4 263

15.3 

6.88 

5.1 15.9 

10 723 

671 1,113 

45 380 

5.1 6.57 

5.1 6.35 

5.7 6.58

196

.3 

.7 

.0

.4

.0 

.3 

,5 

.1 

.5

.3 

.0 

.7 

.7 

.5

.3 

.3 

.5 

.0 

.3

.5 

.4 

.0 

.7 

.7

.7 

.0 

.5 

.0 

.0 

.0

Sept.

7.0 

7.0 

.4 

.0 

.4

.7 

.0 

6.7 

7.0 

6.7

6.4 

6.4 

7.4 

6.0 

6.0

6.0 

6.0 

6.0 

6.7 

7.4

7.4 

7.0 

6.4 

6.0 

5.7

6.0 

6.0 

6.0 

5.7 

6.0

Runoff in 

acre -feet

1,560 

2,110 

375

191,100

942 

382 

977 

43,040 

68,420 

22,630 

404 

391 

392

141,600

b Stage-discharge relation affected by ice.
AMERICAN RIVER BASIN 

South Fork American River near Caraino, Calif.

387

Location.- Water-stage recorder, lat. 38°46', long. 12Q°42', in SWi sec. 25, T. 11 N., R. 

li is., 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 topographcc map).

Drainage area.- 497 square miles.

records available.- October 1922 to September 1949.

Average aischargeT- 27 years, 875 second-feet (corrected), combined flow of South Fork 

American Hiver near Camiho and American River flume.

Extremes.- Maximum discharge during year, 6,460 second-feet May 14 (gage height, 11.93 

reel); minimum, 4.8 second-feet Spet. 4, 12, 15, 16, 17.

1922-49: 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 o£ records (total usable capacity now 

35,500 acre-feet). Two diversions above station; American River flume (see p. 397) 

and El Dorado Canal (see p. 392).

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 1948-49 (gage height. In feet, 

and discharge, in second-feet)

05 4.8 1.5 50 3., 5 334 7.0 1,880 

6 7.0 1.8 72 4.0 466 8.0 2,580 

7 10 2.2 109 4.5 632 9.0 3,380 

9 17 2.6 156 5.0 828 10.0 4,300 

12 31 3.0 222 6.0 1,300 11.1 5,460

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

21 

19 

19 

16 

19

21 

19 

19 

20 

20

19 

19 

27 

28 

23

11 

8.6 

10 

9.6 

8.6

8.4 

9.1 

11 

10 

10

9.7 

9.4 

9.1 

10 

12 

13

Nov.

15 

298 

468 

368 

103

41 

19 

15 

14 

15

16

13 

13 

9.1 

S.8

14 

28 

17 

14 

13

12 

10 

9.8 

39

11

11 

12 

8.5 

10 

9.1

Dec.

9.7 

11 

13 

13 

15

49 

21 

58 

37 

33

21 

17 

200 

104 

98

164 

102 

110 

63 

57

86 

56 

26 

26 

13

115 

47 

78 

56 

47 

58

Jan.

144 

110 

21 

17 

38

122 

118 

34 

35 

19

22 

60 

130 

108 

75

25 

39 

59 

75 

61

82 

84

149 

193 

176

200 

198 

214 

203 

203 

203

Feb.

201 

196 

198 

218 

194

167 

139 

99 

90 

139

ISO 

117 

93 

96 

89

97 

129 

198 

194 

212

158 

137 

211 

198 

188

200 

200 

188

Month

Octo 

Hove 

Dace

Ca

Janu 

Pebr 

Marc 

Apri

Mov

June 

July 

Augu 

Sept

Vfa

lendar year 1948

ter year 1948-49 .......................

Mar.

189 

293 

738 

586 

446

298 

284 

251 

240 

275

460 

646 

603 

473 

346

576 

614 

552 

672 

643

582 

618 

572 

484 

441

394 

449 

555 

509 

463 

424

Apr.

1, 

1, 

1, 

1,

2, 

2, 

2. 

2, 

2,

3, 

3, 

3,

3, 

3,

3, 

3,

4, 

4, 

4,

3, 

3, 

3, 

3, 

2,

Secondfoot-days

468.5 

1,634.3 

1,803.7

280,860.5

3,217 

4,526 

14,681 

74,672 

89,140 

25,217 

1,086.6 

278.3 

275.9

217,000.3

Peak discharge (base. 3,500 see. -ft.).- Apr. 17 (1:30

405 

452 

496 

569 

778

982 

130 

120 

250 

580

010 

260 

380 

660 

890

160 

330 

100 

020 

060

560 

950 

430 

490 

230

740 

850 

630 

170 

990

May

3,090 

3,390 

2,990 

3,060 

3,000

2,930 

3,080 

2,910 

2,260 

2,240

3,300 

3,850 

3,650 

5,460 

3,980

3,570 

3,490 

2,650 

2,320 

2,200

1,910 

2,030 

2,310 

2,650 

2,990

3,020 

2,830 

2,460 

2,010 

1,860 

1,650

Maximum

28 

468 

200

4,980

214 

218 

738 

4,490 

5,460 

1,600 

152 

26 

22

5,460

June

1,32P 

1,330 

1,310 

,380 

,600

,590 

,570 

,510 

,340 

,300

,290 

,080 

897 

946 

1,010

870 

691 

632 

525 

441

368 

336 

303 

277 

216

301 

220 

219 

188 

157

July

152 

117 

98 

91 

34

54 

56 

66 

33 

27

S3 

20 

16 

9.7 

9.4

18 

7.9 

7.0 

6.8 

6.8

14 

14 

16 

16 

12

12 

13 

15 

14 

14 

14

Aug.

14 

26 

14 

10 

8.5

9,7 

11 

9.1 

8.8 

9.1

9.4 

9.7 

9.7 

8.5 

9.1

7.0 

6.S 

7.0 

6.3 

6.1

5.9 

5.9

6.3 

6.3 

5.7

5.9

6.6 

7.3 

11 

9.4 

8.2

Minimum Mean

8.4 15.1 

8.5 54.5 

9.7 58.2

8.4 767

17 104 

89 162 

189 474 

405 2,489 ' 

1,650 2,875 

157 841 

6.8 35.1 

5.7 8.98 

5.9 9.20

5.7 595

a.m.) 3,830 sec. -ft. ; Apr. 24 (2

Sept.

7.6 

6.6 

7.0 

6.1 

6,6

7.0 

7.3 

7.0 

6.8 

7.0

6.8 . 

6.6 

5.9 

6.8 

6.6

6.3 

6.3 

6.3 

6.8 

9.1

10 

10 

9.4 

11 

14

15 

16 

22 

18 

14

Runoff In 

acre-feet

929 

3,240 

3,580

557,200

6,380 

8,980 

29,120 

148,100 

176,800 

50,020 

2,160 

552 

547

430,400

a.m.) 5,460

sec.-ft.; May 14 (11:30 a.m.) 6,460 see.-ft.; May 26 (2 a.m.) 3,780 sec.-ft.
388 AMERICAN RIVER BASIN

Echo Lake conduit near Vade, Calif.

Location.- Water-stage recorder, lat. 38°50', long. 120-02 1 , in NVl£ Sec. 6, T. 11 N., R. 

 IB If. 1 , 0.5 mile .downstream from intake and 2 miles northeast of Vade post office. Altitude of gage, about 7,500 feet (from topographic map).

Records available.- August 1923 to November 1949.

Extremes.- Maximum daily discharge during season, 25 second-feet Sept. 29, 30, Oct. 3, 4; 

no i'low during most of year.

1923-49: Maximum daily discharge 87 second-feet Sept. 13-15, 19, 1938, Sept. 9-12, 

1947; no flow during most of each year.

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

NO now except during periods for which discharge is published. Conduit diverts from 

Echo Lake In Truckee River Basin into basin of South Pork American River for power and 

irrigation. +

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Discharge, In aecond-feet» September to November 1949

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

Sept.

0

0

0

0

0

0

0

0 .

0

0

0

0

0

0

0

0

0

0

0

0

12

24

21

22

22

23

24

24

25

25

-

Month

Sept ember ...................................

hei» . .................................

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

The period ................................

Oct.

24

24

25

25

24

23

22

23

21

20

19

17

16

15

14

13

12

11

9.5

8.6

7.9

a7.4

a6.8

a6.3

a5.7

a5.2

E4.6

h4.1

as. 5

a3.0

a2.5

Nov.

a.2.0

al.6

al.2

a. 8

a. 5

a. 3

a.l

aO

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Second- Maximum foot -days Maximum

222 25 

423.1 25

6.5 2.0

-

Minimum

0 

2.5

0

-

Mean

7.40 

13.6

' 22

-

Runoff In 

acre-feet

440 

839 '13

1,290

a No gage-height record) discharge Interpolated or computed on basis of lake levels, 

h Computed from staff-gage reading.
AMERICAN RIVER BASIN. 

Medley Lakes Outlet nearVade, Calif.

389

Location.- Water-stage recorder, lat. 38°51', long. 120°08', in NW£ sec. 32, T. 12 N., R. 

I7"~E77( revised), 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 (revised).

Records available.- September 1922 to September 1949.

Average discharge.- 27 years, 16.8 second-feet.

Extremes.- Maximum discharge during year, 94 second-feet Aug. 5 (gage height, 2.33 feet); 

minimum, 0.4 second-foot Oct. 30.

1922-49; Maximum discharge, 202 second-feet June 15, 16, 1929 (gage height, 3.42 

feet); no flow at times in some years.

Remarks.- Records good except those for Dec. 3 to April 21, which are poor. Contents in 

KecTTey Lakes, above station, 174 acre-feet Sept. 30, 1948, and about 120 acre-feet 

Sept. 30, 1949.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obcainea in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

SO

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

25 

31 

28 

27

20

8.8 

4.9 

3.0 

2.2

1.7

1.4 

1.2 

1.2 

1.2 

1.0

.9

.8 

.8 

.8 

.8

.8 

.8 

.8 

.8 

.8

.7 

.7 

.6 

.5 

.4 

.5

Nov.

6.2 

17 

21 

15 

14

14 

13 

13 

13 

12

12 

12 

12 

12 

12

12 

12 

11 

11 

10

9.4 

9.1 

8.0 

5.9

4.7

3.9 

3.3

3.0 

2.7 

2.5

Dec.

2.2

2.1

2 

2

Jan.

2

Feb.

2

Month

Octo 

Hove 

Dece

Ca

Janu 

February 

Aprl

June 

July 

Augu 

Sept

Wa

ber. ........................... .........

lendar year 1948

ter year 1948-49 ...............

Mar.

3

Apr.

3

}'

 10

14 

17 

16 

13

12 

12 

11 

8.3 

8.3

Secondfoot-days

169.1 

306.7 

62.3

6.793.8

62 

56 

93 

226.6 

566.9 

613.7 

1,102.5 

1,572.5 

109.0

4.940.3

May

8.0 

8.3

7.8 

7.0 

6.1

5.7 

6.5 

6.8 

5.9 

7.3

12 

12 

12 

16 

10

14 

9.7 

5.7 

5.1 

15

35 

41 

39 

36 

36

37 

36 

35 

32 

30 

29

Maximum

31 

21

114

41 

32 

80 

92 

3.9

92

June

30 

32 

29 

25 

25

18 

16 

21 

15 

12

8.6 

7.5 

7.3 

7.3 

7.0

14 

25 

27 

23 

23

24 

24 

25 

25 

28

28 

27 

24 

19 

17

Minimum

July

16 

15 

15 

16 

14

12 

11 

12 

12 

12

12 

11 

10 

10 

8.8

8.0 

7.0 

5.7 

29 

64

71 

68 

66 

66 

66

72 

78 

77 

78 

80 

80

0.4 

2.5

-

5.1 

7.0 

5.7 

3.9 

3.5

-

Aug.

79 

77 

77 

84 

92

91

89 

89 

87 

86

85 

82 

81 

80 

77

75 

73 

69 

46 

7.6

4.3 

4.1 

3.9 

3.9 

3.9

3.9 

4.3 

4.7 

4.5 

4.3 

4.1

Mean

5.45 

10.2 

2.01

18.6

2 

- 2 

3 

7.55 

18.3 

20.5 

35. 6 

50.7 

3.63

13.5

Sept.

3.9 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3.6 

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.5

Runoff in 

acre -feet

335 

608 

124

13,480

123 

111 

184 

449 

1,120 

1,220 

2,190 

3,120 

216

9,800

Note.- Stage-discharge relation affected by ice Dec. 3 to Apr. 21 (no gage-height record Dec. 15 

to Apr. 21).

947809 O- 51 - 26
390 AMERICAN RIVER BASIN

Silver Lake Outlet near Kirkwood, Calif.

Location.- Water-stage recorder, lat. 38°40', long. 120°08', In SW£ sec. 32, T. 10 N., 

R. 17 E., 1,000 feet downstream from Silver Lake Dam and 3 miles southwest of Kirkwood. Altitude of gage, about 7,200'feet (from topographic map).

Drainage area.- 14.9 square miles.

Records available.- September 1922 to September }.949.

Average discharge.- 27 years,"32.2 second-feet.

Extremes.- Maximum discharge during year, 275 second-feet Apr. 18 (gage height, 3.59 

 feet); minimum, 0.2 second-foot Nov. 22, but may have less during period of ice effect

or no gage-height record.

1922-49: Maximum discharge, 504 second-feet Dec. 11, 1937 (gage height, 5.10 feet),

from rating curve extended above 190 second-feet; no flow on many days in February and

March 1948.

Remarks.- Records good except those for periods of ice effect or doubtful or no gageheight record, which are fair. Contents in Silver Lake, about 2,660 acre-feet Sept. 

30, 1948, and about 2,470 acre-feet Sept. 30, 1949. 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., obtaineQ in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

h49

a47 

a45 

h43 

h41

h39 

h38 

h36 

a35 

a33

32 

32 

31 

30 

27

27 

25 

24 

23 

22

21 

19 

17 

a!5 

h!3

h!3 

h9.9 

h9.9 

h9.9 

h9.9 

h7.2

Nov.

h7.2 

9.9 

11 

11 

9.4

8.1 

7.7 

6.4 

5.0 

5,0

4.7 

4.4 

4.4 

4.1 

3.8

3.6 

3.6 

3.3 

3.1 

3.1

2.3 

2.0

2.1 

2.1 

1.8

1.6 

.8 

1.6. 

1.6

1.5

Dec.

1.4 

1.2 

.9 

1.6

bl.5 

 al.5

Jan.

al.s

Feb.

al.5

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary* ..... ........ ..

ter year 1948-49 ...............

Mar.

al.5

Apr.

 al.5

1.8 

2.1 

2.5 

3.1 

4.1

6.0 

96 

226 

168 

127

67 

60 

124 

153 

164

169 

173 

174 

171 

166

Secondfoot-days

823.8 

136.2 

45.6

11,140.5

46.5 

42.0 

46.5 

2,072.6 

3,471.1 

1,881.3 

59.6 

32.1 

1,691,0

10,348.3

May

165 

169 

168 

169 

169

168 

72

3.1 

3.1 

3.3

3.6 

5.7 

28 

126 

144

.145 

166 

155 

132 

60

8.1 

7.2 

31 

174 

256

252 

244

162 

96 

106 

80

Maximum

49 

11

263

226 

256 

168 

4.4 

1.1 

81

256

June

50 

48 

62 

115 

IBS

158 

165 

148 

125 

151

153 

114

49 

118 

108

24 

30 

41 

23 

7.7

2.9 

2.7 

2.3 

2.3 

2,3

. 2.3 

2.3 

2.3 

2.1 

2.1

Minimum

July

7.2 

.8

0

3.1 

2.1 

1.0 

1.0 

1.0

-

2.1 

2.1 

2.0 

2.0 

d2

d2 

d2 

d2 

d2 

d2

"d2 d2 

h4.4 

h4.4 

h2.5

h2.5 

h2.5 

h2.5 

h2.5 

h2.5

1.1 

1.1 

1.1 

1.1

1.1

1.0 

1.0 

1.0 

1.0 

1.0

1.1

Aug.

1.1 

1.1 

dl.l 

dl.l 

dl.l

dl.l 

dl.l 

dl.l 

dl.l 

dl.l

dl.O 

dl.O 

dl.O 

dl.O 

dl.O

dl.O 

dl.O 

1.0 

1.0 

1.0

1.0 

1.0 

1.0 

l.O 

1.0

1.0 

1.0

1.1

1.0 

1.0 

1.0

Mean

26.6 

4.54

1.47

30.4

1.50 

1.50 

1.50 

69.1 

112 

62,7 

1.92 

1.04 

56.3

28.4

Sept.

1.0 

1.0 

1.0 

1,0

17

81 

80 

79 

77

76

74 

73 

72 

71 

70

69 

68 

67 

66 

65

64 

62 

62 

61 

59

57 

55 

55 

54

53

Runoff In 

acre-feet

1,630 

270 

90

22,090

92 

83 

92 

4,110 

6,880 

3,730 

118 

64 

3,350

20,510

a Ho gage-height record; discharge computed on basis of gate operations and veather records.

b Stage-discharge relation affected by lee.

d Doubtful gage-height record; discharge computed! on basis of gate operations and veather records.

h Computed from tape-gage reading.
AMERICAN RIVER BASIN 391

Twin Lakes Outlet near Kirkwood, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°42', long. 1SO°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 1949 (October 1934 to September 1949, 

except May and June 1945, include flow over Twin Lakes spillway).

Average discharge.- 26 years (1922-44, 1945-49), 32.9 second-feet (including flow over 

Twin Lakes spillway).

Extremes.- Maximum combined daily discharge during year for outlet and spillway, 169 

second-feet June 15; minimum daily, 1.6 second-feet July 16, 17.

1922-49: Maximum combined daily discharge for outlet and spillway, 310 second-feet 

June 1, 1943 (possibly exceeded in May 1945); minimum daily, 0.1 second-foot Mar. 25- 

31, 1944.

Remarks.- Records excellent except those for December to May, which are good, and those 

lor June 14 to July 14, which are poor. No diversion. Plow regulatecf by Twin Lakes, 

contents of which was 17,000 acre-feet Sect. 30, 1948, and 16,700 acre-feet Sept. 30, 

1949. Plow over Twin Lakes spillway occurred June 14 to July 14, 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 1948 to September 1949

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

2§ 

2728

29 

30 

31

Oct.

9.7 

9.7 

9.7 

18 

23

34 

43 

49 

57 

59

63 

64 

64 

32 

4.4

.4 

.1

.1 

.1 

.1

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8 

3.8

Nov.

3.8 

3.8 

3.8 

3.5 

3.5

3.5 

3.5 

3.2 

3.2 

3.2

3.5 

3.5 

3.5 

3.5 

3.5

3.5 

3.5 

3.5 

3.5 

3.8

3.8 

39 

44

26 

26

20 

8.1 

8.1 

18 

23

Dec.

23 

23 

23 

30 

33

34 

34 

39 

44 

24

13 

36 

53 

60 

66

72 

73 

66 

66 

66

60 

52 

52 

66 

73

58 

52 

52 

52 

52 

52

Jan.

52 

52 

58 

72 

72

48 

27 

55 

55

69

78 

78 

a78 

a78 

78

78 

73 

79 

79 

79

78 

78 

78 

76 

76

73 

80 

78 

78 

81 

79

Feb.

79 

79 

69 

62 

62

59 

60 

59 

59 

62

 63 

62 

62 

62 

62

59 

49 

42 

42 

42

42 

59 

32 

32 

32

32 

32 

28

Month

Octo 

Hove

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

tcr year 1948-49 .......................

Mar.

22 

22 

22 

22 

22

22 

22 

22 

22 

22

22 

22 

22 

22 

22

19 

12

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12

12 

12 

12

Apr.

12 

12 

12 

12 

12

12 

12 

12

13 

12

11 

11 

11 

12 

13

13 

13

13 

14 

14

14 

14 

14 

15

15

15 

11 

2.2 

3.5 

3.5

Secondfoot -days

602.1 

286.3 

1,499

10,126.4

2,203 

1,464 

529 

353.2 

140.9 

1,236.6 

381.9 

1,031.9 

1,042.3

10,770.2

May

3.5 

3.5 

3.S 

3.8 

3.8

3.8 

4.1 

4.1 

4.4 

4.4

5.0 

5.0 

5.6 

5.6 

5.0

5.0 

5.0 

5.0 

5.0 

5.0

5.0 

5.0 

5.3 

5.9 

5.6

5.3 

5.3 

4.4 

3.0 

3.0 

3.0

Maximum

64 

44

73

161

81 

79 

22 

15 

5.9 

169 

35 

79 

78

169

June

2.6 

2.4 

2.6 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0

31 

146 

169

126 

Ill 

84 

55 

45

45 

44

45 

44 

44

45 

45 

45 

45 

33

Minimum

July

19 

19 

19 

19 

19

19 

19 

19 

16

11

4.2 

3.2 

S.9 

32 

35

1.6 

1.6 

2.6 

2.8 

2.8

2.8 

2.8 

2.8 

4.8 

18

20 

12 

12 

12 

12 

12

3.8 

3.2

13

.6

27 

28 

12 

2.2 

3.0 

2.4 

1.6 

2.8 

6.2

1.6

Aug.

12 

12 

12 

12 

9.1

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 

27 

75

74 

74 

74 

74 

73

74 

78 

79 

78 

78 

78

Mean

19.4 

9.54.

48.4

27.7

71.1 

52.3 

17.1 

11.8 

4.55 

41.2 

12.3 

33.3 

34.7

29.5

Sept.

78 

78 

78

64

6.2 

9.1 

2O 

20 

20

20 

20 

20 

20 

23

33 

33 

36 

39 

22

12 

16 

39 

49 

49

50 

42 

28 

20 

20

Runoff In 

acre-feet

1,190 

568 

2,970

2O.09O

4,370 

2,900 

1,050 

701 

279 

2,450 

757 

2,050 

2,070

21,360

a Ho gage-height record; discharge Interpolated.
392 AMERICAN RIVER BASIN

El Dorado Canal near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19', in SE£ sec. 29, T. 11 N., 

K. 15 E. , 400 i'eet 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»1949.

Average discharge.- 27 years, 103 second-feet.

Extremes.- Maximum daily discharge during year, 163 second-feet June 15, 29; no flow Oct.

1922-49: Maximum daily discharge, 165 second-feet June 24, 27, 28, 30, 1938, July 

2, 1945; no flow at times.

Remarks.- Records exsellent except those for periods of ice effect, which are good. 

Canal diverts from left bank of South Pork American River just below Silver Pork of 

South Fork; water used for power and irrigation.

Cooperation.- Water-stage recorder graph, famished by Pacific Gas & Electric Co., 

obtained in connection with a Federal Power Commission project.

Discharge, In seeona-feet, water year October 1948 to September 1949

Day

1 

2

3 

4

5

6 

7 

8 

9

10

11 1-2 

13 

14 

15

16 

17

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

102 

114 

113

106 

119

109 

115 

112 

110 

116

115 

116 

117 

121 

72

22

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Nov.

0 

0 

0 

0

0

0 

0 

0 

0 

14

39 

39 

38 

38

42

44

47 

43 

43

41

35 

35 

47 

60 

58

59 

43 

41 

32

41

Dec.

49 

49 

51 

49 

64

66 

76 

 78 

84 

84

62 

55 

85 

96 

108

129 

131 

116 

127 

115

113 

96 

a98 

h99 

bllO

b!20 

102 

99 

99 

97 

92

Month

Oeto 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr! 

Hay

June 

July 

Augu 

Sept

Wa

Jan.

94 

b95 

b90 

b85 

b95

blOO 

80 

83 

b85 

b80

b75 

b80 

b90 

95 

b95

b90 

b90 

87 

94 

94

94 

99 

108 

 blOl 

b94

»b87 

b88 

b90 

b90 

87 

92

Feb.

93 

96 

96 

92

91

98 

95 

blOO 

b!05 

100

98 

b96 

b95 

b95 

blOO

99 

96 

89 

84 

86

84 

85 

83 

80 

78

84 

82 

81

lendar year 1948

ter year 1948-49 .......................

Mar.

77 

73 

78 

74 

74

71 

72 

68

70

74

73 

76 

76 

83 

84

93 

86 

86 

87 

86

86 

86 

77 

85 

84

84 

85 

84 

94 

98 

97

Apr.

102 

107 

107 

108 

116

121 

121 

121 

122 

124

125 

124 

124 

128 

130

131 

131 

131 

135 

138

140 

142 

142 

140 

139

142 

145 

145 

148 

149

Secondfoot-days

1,679 

879 

2,799

41,305

2,807 

2,561 

2,521 

3,878 

4,674 

4,734 

3,334 

3,546 

3,363

37,135

May

150 

151 

151 

151 

151

151 

151 

149 

150

154

157 

155 

153 

153 

146

145 

148 

148 

149 

149

149 

149 

151 

154 

154

154 

153 

151 

149 

149 

149

Maximum

121 

60 

131

162

108 

105 

98 

149 

157 

163 

161 

157 

135

163

June

149 

151 

151 

151 

152

153 

154 

154 

154 

155

155 

154 

154 

160 

163

161 

161 

161 

160 

161

162 

162 

162 

162 

161

162 

162

162 

163 

162

July

161 

158 

154 

150 

143

137 

130 

124 

120 

111

101 

90 

88 

87 

127

91 

70 

65 

60

103

119 

128 

125 

119 

116

136 

142

133 

133 

133 

140

Minimum

0 

0 

49

0

75 

78 

68 

102 

145 

149 

60 

94 

92

0

Aug.

157 

139 

130 

126 

139

137 

128 

126 

125 

123

121 

120 

116 

113 

110

107 

104 

99 

94 

95

110 

105 

103 

100 

100

98 

101 

108 

108 

104 

100

Mean

54.2 

29.3 

90.3

113

90.5 

91.5 

81.3 

129 

151 

158 

119 

114 

112

102

Sept.

98 

96

96 

94 

95

113 

108 

112 

117 

116

114 

113 

114 

110 

107

113 

116

115 

120 

108

96 

92 

115 

133 

135

134 

135 

128 

113 

107

Runoff In 

acre-feet

3,330 

1,740 

5,550

81,930

5,570 

5,080 

5,000 

7,690 

9,270 

9,390 

7,330 

7,030 

6,670

73,650

* Winter discharge measurement made on this day. 

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by Ice. 

h Computed from staff-gage reading.
AMERICAN RIVER BASIN 393

Alder Creek near Whitehall, Calif.

Location.- Water-stage recorder, lat. 38°45 I , long. 120°22', in SW£ sec. 36, T. 11 N., R. 

14 E., 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 1949 (include diversions by pipe line).

Average discharge.- 27 years, 33.4 second-feet'.

Extremes.- Maximum discharge during year, 265 second-feet Apr. 23 (gage height, 2.79 

 feet); no flow Oct. 8-12.

1922-49: Maximum discharge, about 1,760 second-feet Mar. 25, 1928 (gage height, 7.1 

feet, from floodmarks), from rating curve extended above 240 second-feet; no flow Oct. 

5-13, 1946, Jan. 12-24, 1947, many days, October 1947 to January 1948, Oct. 8-12, 1948. 

Extremes do not Include flow in" feeder pipe line.

Remarks.- Records good except those below 5 second-feet, 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., obtainea in connection witfr a Federal Power Commission project.

Revisions (water years).- W 861: 1928(M).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

aO.3 

a. 3 

a. 4 

h.4 

a. 4

a. 4 

a. 4 

a. 3 

a. 3 

a. 3

h.3 

h.3 

a. 4 

a.7 

a.7

a.7 

a. 

h. 

a. 

a.

a. 

a. 

a. 

a. 

h.8

a.8 

a.8 

a.8 

a.9 

1.1 

1.3

Nov.

2.3 

5.7 

5.3 

3.8 

2.7

2.3 

2.1 

1.8 

1.7 

1.7

1.7 

1.6 

1.6 

1.7 

2.0

1.9 

2.0 

1.9 

1.8 

1.8

1.8 

hi. 8 

al.7 

al.6 

al.5

al.5 

al.4 

al.4 

hi. 3 

al.3

Dec.

al.3 

al.4 

al.4 

al.5 

al.6

hi. 8 

a2.2 

*2.6 

2.8 

2.5

2.5 

2.5 

3.5 

3.5 

3.0

)... 

|.

3.0 

5.7 

4.1 

3.3 

3.1 

3.1

Jan.

3.3 

3.6 

3.5 

' 3.0 

3.0

4.0 

4.0 

3.5 

3.0 

3.0

3.5 

5.0 

5.0 

4.5 

4.0

3.5 

> 3.5

L, f w

2.5

Feb.

-

) 

3.0

3.1 

3.5 

3.7

4.1 

4.4 

5.3 

6.5 

6.5

6.9 

6.5 

6.9

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

St......................................

ter year 1948-49 .......................

Mar.

6.9 

7.3 

6.9 

6.9 

7.3

7.8 

6.7 

5.5 

5.3 

5.7

7.3 

7.7 

8.5 

8.5 

9.3

*13 

18 

20 

24 

22

22 

24 

21 

19 

18

18 

21 

24 

23 

22 

21

Apr.

21 

25 

26 

36 

52

66 

82 

76 

92 

118

138 

146 

154 

166 

174

190 

194 

183 

180 

184

200 

220 

233 

239 

217

207 

198 

186 

178 

160

Secondfoot-days

18.7 

62.7 

80.4

13,241.8

103.4 

102.4 

437.6 

4,341 

3,986 

648. f 

104.4 

39.0 

17.2

9,940.9

May

158 

158 

154 

150 

142

140 

134 

132 

120 

122

132 

154 

165 

205 

175

158 

148 

132 

132 

126

117 

109 

106 

106 

104

102 

94 

d86 

dSO 

d75 

870

Maximum

1.3 

5.7 

5.7

269

5.0 

6.9 

24 

239 

205 

64 

5,7 

1.9 

.9

239

June

a64 

a57 

a50 

343 

37

34 

32 

29 

27 

25

22

21 

20 

17 

16

15 

14 

14 

13 

13 '

12 

» 10 

9.8 

9.2 

8.6

8.1 

7.6 

7.1 

6.6 

6.1

July

5.7 

5.7 

5.3 

5.3 

5.3

4.5 

4.5 

4.5 

4.5 

4.1

3.7 

3.7 

3.4 

3.4 

3.2

2.9 

2.7 

2.7 

2.7 

2.7

2.5 

2.5 

2.5 

2.3 

2.3

2.1

2.1 

1.9 

1.9 

1.9 

1.9

Minimum

0.3 

1.3 

1.3

.3

5.3 

21 

70 

6.1 

1.9 

.7 

.5

.3

Aug.

1.9 

1.9 

1.9 

1.9 

1.9

1.9 

1.9 

1.9 

1.9 

1.7

1.6 

1.4 

1.4 

1.3 

1.2

1.1 

1.0 

.8 

a.8 

a.8

a.7 

h.7 

a.7 

a.7 

a.7

a.7 

a.7 

a.9 

hl.l al.O 

a.9

Mean

0.60 

2.09 

2.59

36.2

3.34 

 3.66 

14.1 

145 

129 

21.6 

3.37 

1.26 

.57

27.2

Sept.

aO.9 

a.8 

a.7 

a.7 

h.6

a.6 

a.6 

a.6 

a.6 

a.6

a.6 

h.6 

a.6 

a.6 

a.6

a.5 

a.5 

a.5 

h.5 

a.5

a.S 

a.5 

a.5 

a.5 

a.s

h.5 

a.s 

a.5 

a.5 

a.5

Runoff in 

acre-feet

37 

124

159

26,270

205 

203 

868 

8,610 

7,910 

1,290 

207 

77 

34

19,720

Peak discharge (base, 120 sec. -ft.).- Apr. 16 (8 p.m.) 224 sec. -ft.; Apr. 23 (8 p.m.) 265 sec. -ft. j

Hay 14 (7 a.m.'} 211 sec.-ft.

* Winter-discharge measurement made on this day.

a No gage-height record on creek; discharge computed on basis of records for stations on nearby 

streams.

d Computed from doubtful gage-height record on "creek.

h Computed from staff-gage reading on creek.

Note.- Stage-discharge relation affected by ice Dec. 15-26, Jan. 3 to Feb. 17 (no gage-height record 

Jan. 17-23, 25-30, Feb. 1, 2).
394 AMERICAN RIVER BASIN

Silver Creek at Union Valley, Calif.

Location.- Water-stage recorder, lat. 38°52', long. 120°26', in SE^ sec. 20, T. 12 N., R. 

14 E., 1 mile downstream from confluence of North and Middle Forks, near lower end of 

Union Valley. Altitude of gage, about 4,530 feet (from topographic map).

Drainage area.- 82.7 square miles.

Records available.- October 1924 to September 1949.

Average discharge.- 24 years (1924-27, 1928-49), 1£)7 second-feet.

Extremes.- Maximum discharge during year, 2,330 second-feet May 14 (gage height, 7.28 feet); 

minimum, 4.9 second-feet Sept. 24, 25.

1924-49: 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 ice effect which are fair. No storage 

or diversion above station.

Revisions (water years).- W 861: 1928(M).

Rating table, water year 1948-49, except period of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.4 2.8 1.2 48 2.4 216 4.5 856 

.5 5.1 1.4 68 2.8 304 5.0 1,O70 

.6 8.4 1.6 91 3.2 410 6.0 1,580 

.8 18 1.8 117 3.6 534 6.4 1,'SOO 

1.0 31 2.0 144 4.0 668'

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.7 

7.4 

7.4 

7.4 

7.4

7.4 

7.1 

7.1

7.1 

6.8

6.8 

7.4 

8.4 

9.7 

9.3

8.1 

7.7 

7.4 

7.4 

7.4

7.4 

7.4 

7.1 

7.1 

7.1

6.8 

6.8 

6.8 

8.4 

10 

12

Nov.

51 

187 

295 

93

43

31 

27 

23 

20 

18

17 

16 

16 

15

20

22 

30 

25 

25 

25

22 

21 

20 

23 

22

22

17 

20 

17 

17

Dec.

17 

18 

19 

18 

22

22 

27 

33 

33 

32

30 

32 

47 

35 

33

34 

34 

32 

30 

31

31 

29 

28 

28 

30

31 

32 

31

30 

30 

31

Jan.

34 

34 

32 

30

31

33 

33 

31 

30 

29

29 

29 

29 

28 

27

27 

28 

28 

28 

29

29 

28 

28 

28 

30

30 

29 

28 

29 

30 

30

Feb.

30 

 30 

30 

30

31

31 

30 

30 

32 

35

34 

33 

33 

33 

33

36 

41 

46 

54 

58

60 

71 

87 

80 

77

78 

75 

76

Month

Octo 

Hove 

Dece

Ca

Janui 

Pebn 

Marc 

Aprl

UQ»

June 

July 

Augu 

Sept

'Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

75 

76 

74 

85 

85

85 

79 

75 

72 

77

96 

95 

94 

92 

92

114 

125 

138 

152 

140

143 

143 

121 

109 

101

96 

109 

116 

103 

95 

81

Apr.

1, 

1, 

1, 

1,

Secondfoot -days

239.3 

1,200 

910

77,510.7

918 

1,314 

3,138 

18,504 

25,469 

6,448 

690 

266.4 

174.6

591,271.3

84 

90 

96 

122 

154

191 

234 

238 

280 

382

521 

607 

617 

665 

704

812 

805 

733 

733 

782

955 

090 

190 

160 

010

970 

959 

844 

736 

740

May

865 

851 

782 

805 

801

812 

848 

767 

583 

774

1,150 

1,310 

1,230 

1,800 

1,020

1,120 

876 

661 

603 

576

534^ 

644

757 

814 

860

828 

727 

597 

534 

518 

422

Maximum

12 

295 

47

1,520

34 

87 

152 

1,190 

 1,800 

449 

48 

12 

7.4

1,800

June

360 

382 

385 

449

437

440 

413 

365 

331 

321

287 

247 

232 

210 

185

165 

144 

129 

116 

107

99 

91 

86

80 

77

72 

67 

61 

57 

53

July

48 

44 

42 

39 

37

34 

32 

30 

28 

26

24 

23 

22 

21 

20

19 

17 

16 

15

15

14

14 

13 

13 

13

13

12 

12 

11 

11 

12

Aug.

11 

11 

10 

9.7 

9.7

9.3 

9.3 

9.3 

8.8 

8.8

8.8 

8.4 

8.4 

8.1

8.1

8.1 

7.7 

7.7 

7.7 

7.4

7.4 

7.4 

7.4 

7.1 

7.1

6.8 

7.4 

12 

10 

8.4 

8.1

Sept.

7.4 

7,1 

6.8 

6.4 

6.1

6.1 

6.1

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

5.8 

5.8

5.8 

5.4 

5.4 

5.1 

5.1

5.4

5.4 

5.1 

4.9 

4.9

5.1 

5.4 

5.8 

5.8 

5.8

Minimum Mean »£*£

6.8 7.72 475 

15 40.0 2,380 

17 29.4 1,800

6.8 212 153,700

27 29.6 1,820 

30 46.9 2,610 

72 101 6,220 

84 617 36,700 

422 822 50,520 

53 215 12,790 

11 22.3 1,370 

6.8 8.59 528 

4.9 5.82 346

4.9 162 117,600

large (base. 96 ____ 

ft.; Hsy 25 (10 p.m.) 1,200 sec.-ft.

* Vinter discharge measurement made on this day. 

' Hote.- Stage-discharge relation affected by ice Dec. 15 to Feb. 21.
AMERICAN RIVER BASIN 395

Sliver Creek near Placerville, Calif.

Location.- Water-stage recorder, lat. 38-47', long. 120°35', in SWi sec. 13, T. 11 N-, R. 

 la K., 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 1949.

Average discharge.- 27 years (1922-49), 384 second-feet.

Extremes.- Maximum discharge during year, 3,420 second-feet May 14 (gage height, 7.60 feet);

m ni921-49: 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 1948-49 (gage height, In feet, 

and discharge In second-feet)

Oct. 1 to May 14 May 15 to Sept. 50

1.7 34 3.4 348 6.',0 1,780 1.6 22 

1.9 49 4.0 562 6.7 2,420 1.8 37 

2.2 80 4.5 792 7.2 2,950 2.0 56 

2.5 126 5.0 1,080 2.2 79 

2.9 210 5.5 1,410 2-5 125 

Note.- Same as 

preceding table 

above 2.5 feet.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25.

26 

27 

28 

29 

30 

31

Oct.

36 

36 

36 

36 

37

37 

36 

36 

35 

35

35 

36 

38 

42

42

40 

38 

37 

36 

35

35 

35 

35 

34 

34

34 

34 

34 

38 

43 

43

Nov.

64 

279 

390 

274

114

86 

74 

65 

60

55

54 

52 

50 

49 

57

64 

86 

68 

63 

66

58 

55 

56 

57 

57

59 

48 

52 

53 

51

Dec.

52' 

52 

60 

54 

68

64 

70 

87 

80 

78

74 

76 

178 

100 

81

84 

93 

86 

79 

79

83

76 

74 

66 

74

87 

91 

81 

76 

74 

76

Jan.

106 

93 

74 

67 

80

91 

80 

78 

72 

70

74 

84 

74 

70 

67

66 

66 

64 

66 

66

69 

70 

67 

72 

75

73 

72 

68 

68 

66 

68

Feb.

67 

67 

66 

68 

64

70 

63 

59 

72 

78

88 

76 

75 

75 

75

76 

80 

88 

94 

98

96 

103 

128 

131 

133

135 

133 

133

Month

Octo 

Move 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

137 

160 

233 

200 

175

156 

148 

135 

137 

146

191 

205 

191 

175 

168

241 

259 

259 

284 

276

273 

287 

359 

233 

210

205 

241 

259 

244 

246 

223

Apr.

1, 

1, 

1, 

1,

1,

1, 

1, 

1, 

1,

"l, 

1, 

2, 

2, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot -days

1,138 

2,616 

2,453

144,816

2,276 

2,496 

6,556 

35,474 

42,697 

12,310 

2,164 

1,073 

758

112,011

Peak discharge (tJa-se, 1,600 sec. -ft.).- Apr. 24 (1 a.m

223 

257 

268 

315 

394

466 

511 

534 

604 

772

960

140 

200 

330 

410

550 

620 

480 

450 

460

720 

920 

080 

050 

880

700 

760 

640 

420 

360

May

1,470 

1,580 

1,380 

1,440 

1,410

1,390

1,470 

1,430 

1,100 

1,140

1,690 

2,000 

1,820 

2,780 

1,850

1,740 

1,610 

1,210 

1,080 

1,030

930 

1,0'30 

1,180 

1,280 

1,380

1,360 

1,240 

1,080 

936 

889 

772

Maximum

43 

390 

178

2,350

106 

135 

287 

2,080 

2,780 

762 

123 

42 

31

2,780

June

644 

657 

657 

708 

762

728 

718 

662 

596 

575

554 

492 

462 

441 

404

364 

324 

293 

268 

241

223

210 

198 

186 

179

171 

164 

152 

144 

133

July

Minimum

34 

48 

52

34

64 

59 

135 

223 

772 

133 

42 

29 

22

22

.) 2,570 sec. -ft.; May

123 

116 

111 

105 

102

98 

93 

89 

85 

80

78 

74 

72 

69 

67

64 

60 

57 

54 

53

51 

49 

48 

47 

48

49 

47 

46 

44 

42 

43

Aug.

Mean

36.7 

87,2 

79.1

396

73.4 

 89.1 

211 

1,182 

1,377 

410 

69.8 

34.6 

25.3

307

14 (10 a.m

42 

40 

39 

38 

37

36 

36 

36 

35 

35

35 

35 

35 

35 

35

35 

34 

33 

32

31

31 

30 

30 

29 

29

29 

30 

41 

42 

36 

32

Sept.

31 

29 

28 

27 

27

26 

26 

26 

26 

26

26 

26 

26 

26 

26

25 

24 

23 

23 

23

23 

23 

. 23 

22 

22

23 

23 

27 

26 

26

ao^-fee?

2,260 

5,190 

4,870

287,200

4,510 

4,950 

13,000 

70,360 

84,690 

24,420 

4,290 

2,130 

1,500

222,200

. ) 3,420

,860 sec.-ft.
396 AMERICAN RIVER BASIN

 South Fork Silver Creek near Ice House, Calif.

Location.- Water-stage recorder, lat. 38°49 I , long. 120°22', in SW£ sec. 1, T. 11 N., R. 

14 K., 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 1949. July to October 1922 at site 1 mile 

upstream.

Average discharge.- 25 years, 70.4 second-feet.

Extremes.- Maximum discharge during year, 792 second-feet May 14 (gage height, 3.76 feet); 

minimum, 1.1 second-feet Oct. 18-29.

1924-49: 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, O'.l second-foot Aug. 21 to Sept. 6, 1931.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

wnicn are poor. No storage or diversion above station.

Rating table, water year 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

0.3 

.4

0.5 

2.5 

6.8

1.0 

1.2 

1.4 

1.6

1.8

39

56

80

112

152

3.2 

3.5

198

306

426

562

676

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4

5

6 

7 

8 

9 

10

11 

12 

13 

14

15

16 

17 

18 

19 

20

21 

22 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.2 

1.9

1.9 

1.9 

1.9

1.9 

2.2 

2.2 

2.2 

2.5

2.5 

2.5 

2.5 

2.2 

1.9

1.6 

1,3 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.1

1.1 

1.1 

1.1 

1.1 

1.3 

1.6

Nov.

8.2 

41 

75 

53 

29

20

17

14 

11 

9

8 

7 

6 

5

I'

Dec.

1-

5 

6

Jan.

6 

5

Feb.

b5

b6 

b6 

b6 

b7 

b8

bll 

16 

18 

19 

19

19 

18 

17

Month

Ooto 

Hove 

Dece

Ca

janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948

'

ter year 1948-49 .......................

Peak discharge (base, 340 sec. -ft.).- Apr

sec. -ft. j May 14 (7 a.m.) 792 sec. -ft. 5 May

Mar.

17 

16 

16 

45 

178

76 

49 

38 

27 

20

19 

19 

19 

19 

19

28 

34 

37 

39 

38

62 

41 

35 

33 

32

30 

32 

38 

34 

32 

27

Apr.

28 

28 

31 

41 

48

52 

b60 

54 

57 

b65

b80 

blSO 

b!60 

blSO 

b!85

b!90 

206 

184 

172 

191

250 

306 

343 

364 

323

298 

312 

275 

224

232

Secondfoot-days

51.4 

383.2 

171

27,868.4

170 

245 

1,149 

5,089 

10,194 

3,356 

442.4 

99.7 

50.0

21,400.7

May

267 

289 

258 

278 

286

286 

317 

300 

221

423 

478 

475 

676 

448

461 

413 

284 

234 

216

211 

272 

326 

376 

410

407 

370 

298 

256 

216 

181

Maximum

2.5 

75

573

19 

178 

364 

676 

216 

30 

5.4 

2.2

676

June

156 

160 

160 

186 

203

216 

206 

193 

179 

174

165 

139 

135 

127 

118

104 

91 

78 

64 

56

53 

52 

49 

45 

46

45 

45 

42 

37 

32

July

30 

29 

27 

28 

27

24 

23 

22 

20 

19

17 

16 

16 

14 

13

12 

11 

9.8 

9.2 

8.2

7.8 

7.2 

6.8 

6.8 

6.3

6.3 

5.8 

5.4 

5.4 

5.0 

4.5

Minimum

1.1

1.1

16 

28 

181 

32 

4.5 

1.9 

1.6

1.1

Aug.

5.0 

5.4 

4.5 

4.5 

4.0

3.6 

3.2 

3.2 

2.8 

2.8

3.2 

3.6 

3.2 

3.2 

3.2

3.2 

3.2 

2.8 

2.8 

2.8

2.5 

2.5 

2.5 

2.5 

2.5

2.2 

1.9 

3.6 

3.6 

'3.2 

2.5

Mean

1.66 

12.8 

5.5

76.1

S.5 

8.8 

37.1 

170 

329 

112 

14.3 

3.22 

1.67

58.6

Sept.

2.2 

1.9 

1.9 

1.9 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.6

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.6 

1.7 

1.9 

1.7 

1.6

a e"ee?

102 

760 

339

55,270

337 

486 

2,280 

10,090 

20,220 

6,660 

877 

198 

99

42,450

23 (11:30 p.m.) 436 see. -ft.; May 7 (11:30 p.m.) 385 

25 (8 p.m.) 530 sec. -ft.

b Stage-discharge relation affected by ice. 

Note.- No gage-height record Nov. 10 to Feb. 2, Sept. 13-20; discharge computed on basis of records 

for stations on nearby streams.
AMERICAN RIVER BASIN 

American River flume near Camino, Calif.

397

Location.- Water-stage recorder, lat. 38°46', long. 120°42', in SW£ sec. 25, T.. 11 H., R. 

11 JS., 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 1949. 

Average discharge.- 27 years, 110 second-feet.

Extremes.- Maximum daily discharge during year, 178 second-feet June 19; no flow Jan. 24 

to Feb. 5, Mar. 13, Apr. 15 to May 10.

1922-49: 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. Flume 

diverts from South Fork American River in SW-£ sec. 24, T. 11 N., R. 11 E., for power 

development in SW£ sec. 20, T. 11 N., R. 11 E., just above Rock Creek, at which point 

water is returned to South Fork.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainect in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

139

128 

145 

131 

132

141 

135 

140 

137 

147

140 

140 

147 

151 

142

96 

85 

96 

92 

86

84 

76 

77 

76 

75

73 

71 

69 

72 

80 

80

Nov.

101 

156 

156 

156 

155

154 

1 145 

137 

124 

116

112 

110 

105 

76 

84

112 

150

139 

130 

125

124 

102 

108 

149 

108

124 

116 

90 

106 

94

Dec.

102 

116 

125 

121

124

164 

156 

168 

166 

166

162 

150 

166 

164 

142

75 

165 

163 

163 

157

162 

159 

145 

134 

b!30

163 

161 

162 

164 

164 

164

Jan.

164 

164 

144 

bllO 

b80

147 

156 

162 

159 

b95

b85 

135 

128

137 

146

152 

153 

156 

155 

159

158 

150 

70 

0 

0

0 

0 

0 

0 

0 

0

Feb.

0 

0 

0 

0 

0

b20 

74 

108 

116 

116

116 

122 

126 

b!25 

146

146 

101 

37 

37 

36

88 

140 

147 

149 

150

150 

152 

154

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr!

Mau

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

154 

154 

144 

125 

99

122 

124 

124 

125 

126

116 

60 

0 

52 

126

127 

125 

130 

136 

135

137 

139 

138 

141 

146

151 

155 

151 

151 

150 

151

Apr.

154 

150 

148 

151 

160

161 

161 

159 

158 

156

157 

162 

164 

54 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

3,383 

3,664 

4,623

52,943.5

3,165 

2,556 

3,914 

2,095 

2,697.5 

5,170 

4,673 

3,722 

3,677

43,339.5

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

3.5 

22 

. 48 

73 

79

94 

119 

142 

154 

153

156 

162 

164 

164 

165

166 

166 

166 

167 

167 

167

Maximum

151 

156 

168

175

164 

154 

155 

164 

167 

178 

175 

164 

162

178

June

168 

168 

168 

168 

168

168 

168 

168 

168 

169

170 

170 

169 

171 

174

176 

176 

177 

178 

176

175 

174 

177 

176 

176

175

174 

174 

175 

176

Minimum

July

175 

174 

173 

171 

170

167 

168 

168 

166 

156

159 

148 

140 

131 

141

155 

123 

113 

106 

109

147 

148 

156 

150 

147

148 

153 

158 

153 

148 

152

69 

76 

75

0

0 

0 

0 

0 

0 

168 

106 

90 

86

0

Aug.

152 

164 

152 

136 

132

142 

148 

128 

128 

129

124 

119 

126 

118 

128

104 

108 

111 

90 

99

100 

98 

114 

100 

94

100 

97 

114 

132 

126 

109

Mean

109 

122 

149

145

102 

91.3 

126 

69.8 

87.0 

172 

151 

120 

123

119

Sept.

108 

86 

104 

98 

96

' 96

117 

112 

110 

116

116 

112 

110 

116 

111

110 

110 

114 

112 

138

140 

131 

120 

142 

157

161 

162 

162 

159 

151

Runoff In 

aore-feet

6,710 

7,270 

9,170

105,000

6,280 

5,070 

7,760 

4,160 

5,350 

1Q,250 

9,270 

7,380 

7,290

85,960

b Stage-discharge relation affected by Ice.
398 AMERICAN RIVER BASIN 

Webber Creek near Salmon Palls, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 121°00.', in sec. 32, T. 11 N., R. 

9 Ji., 1 mile upstream from mouth and 3.5 miles east of Salmon Palls. Altitude of 

gage, about 675 feet (from topographic map).

Drainage area.- 100 square miles (by Bureau of Reclamation). 

Records available.- March 1943 to September 1949 .

Extremes.- Maximum discharge during year, 5,390 second-feet Mar. 4 (gage height, 14.34 

reet j, from rating curve extended above 900 second-feet; minimum observed,"0.1 secondfoot Sept. 20.

1943-49: Maximum discharge, that of Mar. 4, 1949; no flow Aug. 26, 1945, July 16 

to Sept. 26, 1947.

Remarks.- Records good -except those for periods of indefinite stage-discharge relation 

ana no ga.^e-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.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

ZZ 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

3

Nov.

9.5

14 

17 

15 

8.2

5.4 

4.7 

4.4 

4.2 

4.2

4.4 

4.2 

4.0 

4.2 

6.2

8.5 

12 

9.2 

7.2 

6.9

6.0 

5.4 

5.0 

5.0 

5.0

4.7 

4.4 

4.4 

4.4 

4.4

Dec.

5.0 

5.2 

10 

15 

13

39 

21 

24

17 

13

11 

10 

29 

60 

45

29 

35 

49 

30 

24

20 

18 

16 

14

13

17 

70 

59 

37 

28 

24

Jan.

59 

97 

51 

34 

27

25 

22 

18

17 

14

15 

14 

14 

14 

14

15 

13 

15 

21 

70

59 

120 

113 

77 

59

48 

47 

48 

49 

49 

47

Feb.

45 

42 

48 

122 

361

269 

634 

216 

139 

138

568 

227 

137 

101 

83

77 

80 

90 

93 

91

87 

83 

112 

98 

92

83 

103 

93

Month

Oeto 

Nove 

Decs

Ca

janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Wa

Lendar year 1948

ter year 1948-49 .......................

Mar.

80 

93 

2,880 

2,420 

1,000

500 

350 

300 

250 

300

700 

900 

395 

273 

223

913 

392 

255 

351 

286

210 

228 

469 

322 

234

190 

161 

162 

136 

128 

124

Apr.

113 

95 

91 

89 

82

78 

73 

72 

71 

69

64 

60 

56 

52 

49

40 

36 

34 

37 

36

34 

33 

31 

30 

30

28 

27 

27 

27 

26

Secondfoot -days

93 

202.1 

800.2

17,330.1

1,285 

4,312 

15,225 

1,590 

413.9 

57.8 

11.4 

9.5 

5.9

24,005.8

May

24 

21 

22

21 

19

17 

15 

15 

15 

14

12 

10 

9.2 

13 

17

16

13 

13 

18 

19

17 

14 

11 

9.2 

7.4

6.4 

4.1 

4.3 

5.7 

5.9 

5.7

Maximum

17

70

1,580

120 

634 

2,880 

113 

24 

4.8

2,880

June

4.8 

3.9 

3.2 

2.7 

2.7

2.7 

2.9 

2.7 

2.4 

2.1

1.9 

1.7 

1.7 

1.4

a. 3

1.3

1.2 

1.4 

1.7 

1.9

1.9

1.7 

1.3

1.3

1

Minimum

4.C 

5.C

-

13 

42 

80 

26 

4.1

-

July

0.5 

.2

.3

Aug.

0.3

.5 

.3

Mean

3 

) 6.74 

25.8

47.4

41.5 

154 

491 

53.0 

13.4 

1.93 

.37 

.31 

.20

65.8

Sept.

0.2

.1 

.Z

Runoff In 

acre-feet

184 

401 

1,5£0

34,380

2,550 

8,550 

30, 200 

3,150 

821 

115 

23 

19 

\Z

47,620

Peak discharge (base. 2,400 see.-ft.).- Mar. 4 (1 a.m.) 5,390 sec.-ft.

Npte.^ Stage-discharge relation Indefinite Oct. 1-31; discharge computed on basis of records for 

stations on nearby streams. Ho gage-height record Mar. 5-12, June 25 to Sept. 30; discharge computed on basis of 3 discharge measurements and record for stations on nearby streams.
COLUSA AND YOLO BASINS 399 

Yolo bypass near Woodland, Calif.

Location.- Water-stage recorder on left bank, lat. 38°40'40", long. 121°38'35", Just upstream from Sa,cramento and Woodland Railroad bridge, 6 miles upstream from Sacramento 

bypass, 7 miles downstream from Premont weir, and 7 miles east of Woodland, Yolo County. 

Auxiliary water-stage recorder 6 miles downstream. Zero of both gages Ig set to datum 

of Corps of Engineers.

Records available.- October 1940 to September 1949 in reports of Geological Survey. 1939- 

49 in reports of Division of Water Resources, Department of Public Works, State of 

California.

Extremes.- Maximum discharge during year, 19,800 second-feet Mar. 14 (gage height, 24.85 

t'eet); minimum, 3.6 second-feet Dec. 5.

1940-49: Maximum discharge, 272,000 second-feet Feb. 8, 1942 (gage height, 32.00 

feet); minimum daily, 3 second-feet Dec. 17, 1940.

Remarks.- Records fair except those for May through August, which are poor. Flow is that 

I'rom Cache Creek and Knights Landing Ridge Cut plus flood-water passing over Premont 

weir; during summer, flow consists largely of return water from irrigation. Discharge 

for low flows computed on basis of gage-height record for auxiliary gage.

Cooperation.- Records collected and prepared in cooperation with Division of Water Res6uJ*ces, Department of Public Works, State of California.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

Z 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

£0

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

19 

25 

42 

35 

27

19 

14 

12 

9.7 

8.4

8.5 

8.7 

8.9 

8.9 

9.0

9.4 

10 

11 

12 

12

12 

12 

12 

12 

12

11 

11 

10 

9.6 

'9.6 

8.9

Nov.

8.7 

8.6 

8.4 

8.2 

6.9

6.7 

7.4 

6.4 

5.5 

5.4

5.4

5.4 

5.5 

5.2 

5.7

5.8 

6.1 

6.3 

5.8 

6.2

6.6 

6.2- 

6.4 

7.0 

7.2

7.2 

6.7 

6.4 

6.4 

6.2

Dec.

6.6 

6.0 

6.6 

6.8 

5.8

7.4 

6.8

7.5 

7.5 

7.9

7.8 

7.5 

8.2 

8.5 

8.9

9.4

11 

13 

14 

14

14 

14 

14 

13 

14

16 

21 

24 

24 

24 

24

Jan.

23 

23 

23 

20 

19

18 

19 

21 

23 

26

69 

67 

50 

42 

38

35 

30 

29 

32 

37

38 

42 

44

45 

45

44 

45 

42

26 

19 

14

Feb.

11 

10 

10 

9.4 

10

8.9

11 

11 

12 

11

13 

13 

12 

12

11

12 

15 

42 

76 

97

108 

124 

144 

150 

151

154 

157 

159

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

158 

156 

156 

162 

190

620 

1,470 

1,870 

1,670 

1,340

3,070 

6,120 

6,430 

13,800 

16,000

8,670 

6,160 

5,680 

5,470 

5,350

5,260 

5,160 

4,880 

4,400 

3,880

3,330 

2,740 

2,050 

1,250 

875 

704

Apr.

524 

400 

348 

291 

256

232 

210 

195 

185 

180

171 

144 

93 

64 

52

49 

44 

37 

32 

24

20 

17 

20 

25 

29

29 

32 

37 

42 

44

Secondfoot-days

429.6 

195.9 

373.2

153,416.1

1" 1,048 

1,554.3 

119,071 

3,826 

1,283 

898 

1,187 

1,264 

2,094

133,224.0

May

46

47 

47 

76 

64

58 

57 

52 

45 

39

36 

38

41 

42 

37

32 

32

31 

30 

27

25 

20 

23 

38 

42

41 

47 

47 

48 

41 

34

Maximum

42 

8.7 

24

14,500

69 

159 

16,000 

524 

76 

45 

51 

54 

118

16,000

June

25 

24 

36 

43 

45

43 

40 

35 

33 

29

26 

23 

23 

24 

26

26 

27 

26 

26 

26

26 

26 

28 

28 

27

25 

28 

31 

34 

39

July

43 

44 

43 

45 

46

49 

49

50 

51 

49

46 

43 

39 

35 

28

27 

31 

SO 

31 

30

30 

30 

32 

34 

35

36 

38 

37 

36 

36 

34

Minimum

8.4 

5.2 

5.8

5.2

14 

8.9 

156 

17 

20 

23 

27 

35 

43

5.2

Aug.

36 

38 

38 

38 

38

37 

35 

35 

37 

36

36 

36 

37 

39 

38

38 

37 

39 

43 

43

48 

49 

44 

43 

43

42 

43 

45 

47 

52 

54

Mean

13.9 

6.53 

12.0

420

33.8 

55.5 

3,841 

128 

41.4 

29.9 

38.3 

40.8 

69.8

365

Sept.

59 

58 

58 

66 

69

72 

75 

76 

81 

83

78 

76 

71 

69 

68

70 

67 

62 

63 

60

59 

60 

80 

118 

101

83 

66 

55 

48 

43

Runoff In 

acre-feet

852 

389

740

304,300

2,080 

3,080 

236,200 

7,590 

2,540 

1,780 

2,350 

2,510 

4,150

264,300
400 COLUSA AND YOLO BASINS

Clear Lake at Lakeoort, Calif.

Location.- Water-stage recorder, lat. 39°03', long. 122°55', in SE£ sec. 24, T 14 N., 

RTTD~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 1949.

Extremes.- Maximum daily gage height during year, 6.03 feet Apr. 10-15; minimum, 0.43 

 foot Nov. 30.

1913-49: Maximum gage height observed, 11.12 feet Jan. 28, 1914; minimum observed, 

-3.50 feet Sept. 24-27, 1980.

Remarks.- This natural lake is regulated by a concrete overflow dam at outlet, completed 

in J.915. 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.

Oage height. In feet, water year October 1948 to September 1949

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

26

26

27

28

29

30

31

Oot.

0.86

.84

.84

.83

.82

.81

.79

.78

.77

.76

.75

.75

.74

.73

.72

.72

.71

.71

.70

.69

.69

.68

,.68

.67

.67

.66

.65

.64

.64

.63

.63

Nov.

0.62

.62

.62

.62

.61

.61

.61

.60

.59

.59

.59

.59

.58

.58

.58

.58

.57

.56

.,55

.54

.53

.52

.51

.49

.48

.47

.46

.45

.44

.43

-

Deo.

0.48

. 0

.52

.54

.55

.57

.59

.61

.61

.61

.61

.61

.63-

.65

.67

,69

.69

.68

.68

.68

.67

.67

.68

.72

.77

.81

.82

.83

.84

.85 .86'

Jan.

0.87

.87

.88

.89

.90

.91

.91

.91

.91

.91

.91

.91

.91

.91

.91

.92

.92

.93

.95

.96

.97

.99

.99

.99

1.00

1.00

1.00

1.00

1.00

1.00

1.00

Feb.

1.00

1.00

1.00

1.03

1.06

1.10

1.17

1.24

1.28

1.32

1.38

1.45

1.32

1.54

1.57

1.58

1.59

1.61

1.62

1.64

1.88

1.72

1.79.

1.84

1.87

1.91

1.94

1.97

.

_

-

Mar.

2.01

2.13

2.35

2.45

2.57

2.70

2.76

2.62

2.97

3.21

3.67

4.|00

4.15

4.25

4.35

4.50

4.70

5.05

5.19

5.35

5.49

5.61

5.68

5.78

5.82

5.86

5.89

5.93

5.94

5.95

5.95

Apr.

5.96

5.97

5.98

5.99

5.99

6.00

6.00

6.01

6.02

6.03

6.03

 6.03

6.03

6.03

6.03

6.02

6.02

6.02

6.02.

6.02

6.02

6.01

6.00

6.00

5.99

5.95

5.92

5.88

5.86

5.84

Hay

5.81

5.79

5.77

5.75

5.73

5.71

5.69

5.67

5.65

5.63

5.61

5.59

5.58

5.56

5.54

5.52

5.49

5.46

5.43

5.41

5.38

5.35

5.32

5.29

5.27

5.22

5.17

5.12

5.08

5.05

5.02

June

4.98

4.95

4.92

4.89

4.85

4.82

4.79

4.75

4.72

4.69

4.66

4.63

4.60

4.56

4.53

4.48

4.42

4.36

4.32

4.27

4.23

4.20

4.16

4.10

4.05

4.00

3.95

3.91

3.86

3.81

-

July

3.78

3.74

3.71

3/67

3.63

3.58

3.54

3.50

3.46

3.42

3.39

3.35

3.31

3.27

3.24

3.22

3.16

3.11

3.05

3.02

2.98

2.94

2.89

2.85

2.81

2.76

2.72

2.68

2.65

2.61

8.57

Aug.

2.54

2.50

2.45

2.43

2.34

2.30

2.26

2.22

2.19

2.15

2.11

2.05

2.01

1.97

1.93

1.89

1.85

1.81

1.79

1.77

1.74

1.69

1.66

1.62

1.58

1.55

1.52

1.48

1.45

1.42

1.39

Sept.

1.36

1.33

1.30

1.27

1.22

1.18

1.13

1.13

1.10

1.08

1.05

1.03

1.01

.98

.95

.92

.90

.88

.86

.83

.80

.76

.72

.69

.68

.67

.65

.64

.62

.61
COLUSA AND YOLO BASINS 401

Cache Creek near Lower Lake, Calif.

Location.- Water-stage recorder, lat. 38°55', long. 122°34', in sec. 6, T. 12 N., R. 6 W., 

5uu reet downstream from Clear Lake Dam, 1.5 miles downstream from Copsey Creek, and 

2.5 miles northeast of Lower Lake. Altitude of gage, about 1,280 feet (from topographic 

map).

Drainage area.- 528 square miles including water surface of Clear Lake (65 square miles).

hecoras available.- May 1944 to September 1949.

Extremes.- Maximum daily discharge during year, 532 second-feet June 14, 15 (gage height, 

4.21 reet); minimum daily, 2.4 second-feet Nov. 8.

1944-49: Maximum discharge, 4,650 second-feet Jan. 4, 1946 (gage height, 8.34 

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

studies and logarithmic plotting; minimum not determined, but less than 0.5 second-foot.

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

Plow completely regulated by Clear Lake Dam.

Rating table, water year 1946-49 (gage height, In feet, 

and discharge, In second-feet)

0.4 2.3 0.9 7.4 1.8 42 3.2 244 

.5 2.9 1.0 9.4 2.0 58 3.5 314 

.6 3.6 1.2 15 2.3 91 3.8 394 

.7 4.6 1.4 22 2.6 132 4.0 456 

.8 5.9 1.6 31 2.9 185 4.3 570

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

Z 

2 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

60 

46 

46 

47 

46

46 " 

46 

45 

45 

46

27 

5.3 

5.1 

4.8 

4.7

5.3 

5.2 

5.1 

5.1 

5.2

5.1 

5.1 

5.0 

5.0 

4.8

4.8 

4.8 

4.8 

4.6 

4.6 

4.6

Nov.

4.6 

4.8 

4.8 

4.6 

4.1

4.6 

4.4 

2.4 

3.6 

4.6

3.8 

3.9 

4.6 

4.6 

4.6

4.6 

4.6 

4.0 

4.6 

4.6

4.2 

3.8 

4.4 

4.4 

4.2

4.0 

4.0 

3.8 

4.2 

4.2

Dec.

4.2 

4.2 

4.2 

4.0 

4.0

4.0 

4.0 

4.2 

4.0 

4.0

4.0 

4.0 

4.0 

3.8 

3.8

3.8 

3.6 

3.6 

3.6

3.6

3.6 

a3.6 

a3.6 

a3.6 

a3.6

a3.5 

a3.5 

a3.5 

a3.5 

a3. 5 

a3. 4

Jan.

aS.4 

a3.4 

aS.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4

3.3

3.2 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3,4

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4 

3.4

Feb.

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.4 

3.4 

3.6 

3.6

3.6 

3.6 

3.6 

3.4 

3.6

3.6 

3.6 

3.6 

3.8 

3.8

3.8 

3.8 

3.8

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948 

apy

ter year 1948-49 .......................

Mar.

3.8 

3.8 

4.0 

4.0 

4.2

4.2 

4.2 

4.2 

4.4 

5.0

5.1 

4.6 

4.6 

4.4 

4.6

4.8 

4.8 

4.8 

5.1 

5.2

5.2 

5.3 

5.3 

5.3 

5,5

5.5 

5.3 

5.5 

5.5 

5.5 

5.3

Apr.

5.2 

5.2 

5.3 

5.1 

5.4

5.5 

5.5 

5-5 

5.6 

5.7

5.9 

5.9 

5.9 

5.7 

6.0

6.2 

6.2 

6.2 

6.2 

6.5

6.5 

76 

118 

137 

224

276 

300 

314 

322 

304

Secondfoot-days

599.0 

127.6

117.5

39,595.7

105.1 

99.0 

149.0 

2,192.2 

10,210 

13,704 

13,164 

11,964 

5,817

58,248.4

May

295 

297 

322 

348 

358

363 

361 

332 

309 

309

319 

319 

290 

268 

268

268 

266 

264 

246 

235

248 

259 

297 

327

377

440 

446 

453 

453 

446 

427

Maximum

60 

4.8 

4.2

430

3.4 

3.8 

5.5 

322 

453 

532 

460 

456 

348

532

June

397 

369 

363 

377 

403

437 

456 

450 

440 

450

463 

490 

520 

532 

532

a525 

a520 

a500 

a460 

a 440

a430 

a430 

a460 

a470 

a470

a470 

a460 

h440 

a470 

a480

July

a460 

a430 

a400 

a370 

a360

a380 

427 

434 

427 

421

415 

421 

437 

434 

440

437 

427 

427 

424 

440

453 

440 

424 

437 

450

443 

434 

424 

421 

409 

418

Aug.

424 

437 

456 

456 

443

400 

372 

391 

403 

397

391 

394 

388 

388 

397

397 

383 

369 

369 

369

369 

374 

380 

377 

369

358 

353 

353 

350 

335 

322

Sept.

319 

319 

322

327 

327

335 

348 

1527 

283

251

242 

246 

233 

216 

229

211 

187 

165 

128 

116

109 

94 

78 

61

54

54 

55 

56 

63 

62

Mini, Mean %£*£

'4.6 19.3 1,190 

2.4 4.25 253 

3.4 3.79 233

1.5 108 V 8,535

3.2 3.39 208 

3.4 3.54 196 

3.8 4.81 296 

5.1 73.1 4,350 

235 329 20,250 

363 457 27,180 

360 425 26,110 

322 386 23,730 

54 194 11,540

2.4 160 115,500

a No gage-height record; discharge computed on basis of records for station near Capay, 

polated.

h Computed from staff-gage reading.
402 COLUSA AND YOLO BASINS

Cache Creek near Capay, Calif.

Location.- Water-stage recorder, lat. 38°43'40", long. 122°.06'15" In SE£ sec. 8, T. 10 

 N., T3. 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 1949.

Extremes.- Maximum discharge during year, 9,640 second-feet Mar. 11 (gage height, 11.02 

reet J; minimum, 6.3 second-feet Nov. 7.

1942-49: 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, except those above 2,000 second-feet and those for period of 

ice effect, which are good. Flow regulated by Clear Lake beginning in 1915 (see p.400) 

Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

80 

74 

59 

54

51

51 

49

47 

46 

47

58 

59 

44 

27 

22

18 

15 

14 

13 

13

12 

11 

11 

10 

9.3

8.5 

7.8 

7.8 

8.5 

8.5 

8.5

Nov.

9.3 

9.3 

10 

9.3 

8.5

8.5 

7.8 

7.8 

7.8 

7.8

7.0 

7.0 

7.0 

7.8 

10

12 

13 

14 

15 

15

15 

16 

16 

16 

16

16 

17 

17 

17 

17

Dec.

17 

17 

18 

18 

22

23 

45 

h59 

h76 

h74

h63 

a57 

h51 

72

110

95 

93

- 84 

74 

67

59 

58 

56 

54 

59

72 

105 

121 

108 

*99 

114

Jan.

123 

238 

- 251 

176 

141

125 

119 

156 

148 

blOO

b70 

b75 

b90 

95 

84

76 

70 

69 

74 

78

76 

78 

80 

78 

69

63 

61 

59 

58 

59 

59

Feb.

61 

61 

*63 

65 

76

112 

484 

304 

198 

164

675 

613 

324 

228 

182

157 

150 

150 

154 

157

190 

244 

682 

557 

438

361 

321 

276

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

247 

311 

1,240 

1,400 

1,100

1,150 

785 

582 

521 

3,490

6,350 

4,650 

2,490 

1,700 

1,350

1,480 

1,860 

1,560 

1,720 

1,870

1,340 

1,100 

934 

792 

668

557 

495 

458 

418 

380 

342

Apr.

321 

297 

280 

263 

247

238 

228 

232 

219

216

216 

213 

210 

207 

196

179 

162 

150 

140 

130

125 

120 

130 

179 

199

263 

328 

353 

380 

383

Secondfoot -days

943.9 

356.9 

2,040

82,889.8

3,098 

7,447 

43,340 

6,794 

11,579 

12,835 

11,975 

10,897 

5,518

116,823.8

May

368 

361 

361 

380 

422

422 

426 

422 

391 

380

373 

384 

367 

343 

330

327 

317 

323 

330 

301

298 

294 

301 

330 

350

412 

442 

442 

462 

462 

458

Maximum

80

17 

121

2,850

251 

682 

6,350 

383 

462 

498 

423 

409 

310

6,350

June

431 

398 

367 

360 

370

387 

419 

416 

409 

419

435 

466 

486 

498 

490

482 

478 

454 

427 

401

398 

398 

427 

439 

439

439 

416 

409 

435 

442

July

423 

384 

363 

340 

330

350 

380 

394 

394 

387

380 

370 

384 

394 

394

394 

391 

387 

387. 

387

405 

412 

394

391 

405

412 

405 

394 

391 

380 

373

Minimum

7.8 

7.0 

17

7.0

58 

61 

247 

120 

294 

360 

330 

294 

49

7.0

Aug.

387 

380 

394 

405 

409

394 

353 

343 

360

363

353 

353 

356 

350 

356

360 

360 

343 

336 

333

333 

333 

343 

346 

343

333 

327 

323 

320 

314 

294

Mean

30.4 

11.9 

65.8

228

99.9 

266 

1,398 

226 

374 

428 

386 

352 

184

320

Sept.

288 

288 

285 

291 

294

294 

307 

310 

288 

257

230 

224 

224 

207 

198

207 

187 

168 

148 

123

110 

101 

84 

80 

65

58 

53 

52 

49 

49

Runoff In 

acre -feet

1,870 

708 

4,050

164,400

6,140 

14,770 

85,960 

13,480 

22,970 

25,460 

23,750 

21,610 

10,940

231,700

Peak discharge (base, 3,500 sec. -ft. j.- Mar. 11 (8:30 p.m.) 9,640 sec. -ft.

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by Ice. 

h Computed from staff-gage reading.
COLUSA AND YOLO BASINS 403

Cache Creek at Yolo, Calif.

.Location.- Water-stage recorder, lat. 38°43'30", long. 121°48 1 85", in Rio Jesus Maria- 

 Grant, 800 feet upstream from highway bridge and 0.5 mile south of Yolo, Yolo County. 

Altitude of gage, about 60 feet Tfrom topographic map).

Drainage area.- 1,137 square miles.

Records available.- January 1903 to September 1949.

Average discharge.- 46 years, 502 second-feet.

Extremes.- Maximum discharge during year, 8,520 second-feet Mar. 12 (gage height, 12.97 

feet); no flow for several months.

1903-49: 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, 1W5, staff-gage reading.

Remarks.- Records fair above 200 second-feet, poor below. Many diversions above station 

ror irrigation. Flow regulated by Clear Lake beginning in 1915 (see -p. 400).

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

15 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct. Nov. Dec.

'

Jan. Feb.

0 

o

0

0 

0

0 

0 

260 

d!60 

(U10

dioo

620 

332 

211 

d!60

d!30 

dllO 

dioo

d90 

d90

d90 

dlio

d220 

. 476 

360

296 

241 

214

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

uarv

ter year 1948-49 .......................

Mar.

d!80 

d!60 

583 

1,020 

964

886 

748 

535 

427 

1,710

4,590 

5,740 

2,540 

1,650 

1,320

1,320 

1,700 

1,500 

1,490 

1,830

1,370 

1,090 

945 

802 

712

598 

520 

470 

432 

390 

345

Apr.

310 

284 

248 

230 

209

192 

184 

161 

154 

d!40

d!20 

dlOO 

d85 

d75 

d50

d20

d7 

dl ' 0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Secondfoot-days

0 

0 

0

18,522.1

0 

4,480 

38,567 

2,570 

0 

0 

0 

0 

0

45,617

May

Maximum

0 

0 

0

1,820

0 

620 

5,740 

310 

0 

0 

0 

0 

0

5,740

June

1

July

Minimum

0 

0 

0

0

0 

0 

160 

0 

0 

0 

0 

0 

0

0

Aug.

Mean

0 

0 

0

50.6

0 

160 

1,244 

85.7 

0 

0 

0o0

125

Sept.

Runoff in 

acre-feet

0 

0

0

36,740

0 

8,690 

76,500 

5,100 

0 

0 

0 

0 

0

90,490

Peak discharge (base. 2.200 sec.-ft.).- Mar. 12 (3:30 a.m.) 8,520 sec.-ft.

d Doubtful gage-height record; discharge computed on basis of trend of gage-height record and 

records for station near Capay.
COLUSA AND YOU) BASINS

Kelsey Creek near Kelseyville, Calif.

Location.- Water-stage recorder, lat. 38°55'45", long. 122°50'25", in SEi sec. 34, T. 13 

M., R. 9 W., 1.5 miles downstream from Widow Creek and 3.5 miles south of Kelseyville. 

Altitude of gage, about 1,450 feet (from topographic map).

Drainage area.- 37.4 square miles.

Records available.- October 1946 to September 1949. 

unpublished reports of Bureau of Reclamation.

December 1945 to September 1946 in

Extremes.- Maximum discharge during year, 1,570 second-feet Mar. 10 (gage height, 7.22 

feet); minimum, 1.2 second-feet Sept. 22.

1946-49: Maximum discharge, 2,320 second-feet Nov. 28, 1946 (gage height, 9.38 

feet), from rating curve extended above 1,200 second-feet by logarithmic plotting; 

minimum, 0.6 second-foot Sept. 11-13, 1948.

Remarks.- Records good. No storage or ^version above station.

Rating tables, water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Backwater from moss Oct. 1 to Dec. 31, 

Jan. 6 to Feb. 6)

Oct. 1 to Mar. 10 Mar. 11 to Sept. 30

0.45 1.3 1.2 32 2.8 296 0.5 1.4 1.2 39 2.7 3O4 

.50 2.2 1.4 47 3.5 464 .6 3.9 1.4 58 3.2 420 

.60 4.5 1.6 66 4.5 724 .7 7.5 1.6 82 5.0 870 

.70 7.5 1.8 92 5.5 1,010 .8 13 1.8 114 6.0 1,170 

.80 11 2.0 128 1.0 25 2.2 195 

1.0 20 2.4 208

Discharge, in second-feet, water year October 1948 to September 1949

Day

1

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30

31

Oct.

1.8 

2.0 

2.8 

4.5 

3.2

2.8 

2.6 

2.4 

2.4 

2.4

3.0 

4.2 

3.5 

3.2 

3.0

3.7 

6.5 

7.2 

7.5 

7.5

7.8 

5.5 

4.5 

4.8 

4.8

4.5 

4.5

4.8

5.4 

5.6 

6.5

Nov.

9.6 

13 

10 

8.2 

6.2

5.6 

5.6 

5.6 

5.6 

5.6

5.6 

5.4

5.4 

5.6 

7.8

7.8 

7.8 

7.5 

7.5 

7.5

7.2 

6.8 

6.8 

6.2 

5.9

5.9 

5.9 

6.2

6.2 

6.2

Dec.

6.2 

6.2 

9.6 

7.2 

22

13

11 

13 

7.8 

6.5

5.4 

6.2 

35 

28

16

13 

12 

11 

10 

9.2

9.6 

8.6 

6.8 

6.5 

6.8

8.2 

10 

10 

11 

22 

33

Jan.

106 

86 

i 43 

29 

23

21 

27 

27 

20 

17

16 

16 

16 

15 

14

12 

12 

12 

14 

14

14

16 

, 15 

13 12

12 

12 

13

13 

13 

13

Feb.

13 

13 

13 

26 

52

247 

245 

96 

62 

108

323 

136 

74 

52 

44

44 

45 

42 

40 

70

110 

228 

221 

170 

138

110 

88 

70

Month

Goto 

Nove

Dece

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

ter year 1948-49 .......................

Mar.

58 

396 

470 

344 

252

234 

172 

134 

184 

992

1,150 

559 

332 

256 

250

384 

502 

408 

628 

355

278 

251 

216 

197 

164

140 

124 

109 

97 

88 

81

Apr.

73 

67 

61 

56 

53

50 

47 

45 

43 

40

39 

37 

37 

a36

36

35 

34 

32 

31 

30

30 

28 

. 28 

26 

26

24 

24 

24 

24 

23

May

23

24 

22 

21 

21

20 

19 

19 

20 

19

18 

17 

17 

18 

19

18 

17 

17 

18 

18

17 

16 

15 

14 

14

12

11 

12 

13 

13 

12

Second- Maximum 

foot-days

134.9 7.8 

206.2 13 

380.8 35

13,886.1 944

686 106 

2,880 323 

9,795 1,150 

1,139 73 

534 24 

203.4 13 

 89.6 4.2 

67.5 2.6 

62.6 2.8

16,179.0 1,150

June

13 

12 

11 

9.5 

9.0

8.4 

8.4 

8.4 

7.5 

7.5

7.1 

6.6 

6.2 

5.8 

5.8

5.5 

5.1 

5.5 

6.2 

6.2

5.8

5.1 

5.1 

5.1 

4.8

4.5 

4.5

4.5 

4.8 

4.5

July

4.2 

. 3.9

3.9 

3.9 

4.2

3.9

3.3 

3.6 

3.6 

3.1

3.1 

2.8 

2.6 

2.6 

2.3

2.3

2.6 

2.3 

2.6 

2.6

2.6 

2.3 

2.6 

2.6 

2.8

2.6 

2.3

2.1 

2.1

2.1 

2.1

Aug.

2.6 

2.6 

2.1 

2.1 

2,1

2.1 

2.1 

2.3 

2.6 

2.6

2.3 

2.3 

2.1 

2.1 

2.1

2.3 

2.1

2.1 

2.1

1.8

1.6

1.6 

1.8 

2.1 

2.3

2.3 

2.3 

2.3 

2.3 

2.3 

2.1

Minimum Mean

1.8 4.35 

5.4 6.87 

5.4 12.3

0.8 37.9

12 22.1 

13 103 

58 316 

23 38.0 

11 17.2 

4.5 6.78 

2.1 2.89 

1.6 2.18 

1.6 2.09

1.6 44.3

Sept.

2.1 

2.1 

1.8 

1.8 

2.1

2.3 

2.3 

2.3 

2.3 

2.3

2.6 

2.6 

2.6 

2.3 

2.1

2.1 

1.8 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.6 

1.6

1.8 

2.3 

2.6

2.8 

2.8

Runoff in 

acre-feet

268 

409 

755

27,560

1,360 

5,710 

19,430 

2,260 

1,060 

403 

178 

134 

124

32,090

Peak discharge (base, 1,000 sec. -ft.).- Mar. 10 (3:30 p.m.) 1,570 sec. -ft.

a No gage-height record; discharge interpolsted.
COLUSA AND YOLO BASINS 405

North Fork Cache Creek near Lower Lake, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 122°33', in NE^ 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 ]929.

Drainage area.- 198- square miles.

Records available.- July 1930 to September 1949.

Average discharge.- 19 years, 166 second-feet.

Extremes.- Maximum discharge during year, 3,720 second-feet Mar. 10 (gage height, 7.80 

feet); no flow Sept. 5-j30.

1930-49: Maximum discharge, 20,000 second-feet Feb. 28, 1940 (gage height, 13.9 

feet), by slope-area method and logarithmic pitting; no flow at times during each 

year 1930-36, 1949. w

Remarks.- Records good. Several small diversions above station. 

Revision (water years).- W 831: 1932(M).

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 10 Mar. 11 to Sept. 30

1.3 0.1 3.3 45 5.0 855 1.1 0 1.7 10 3.2 206 

1.4 1.4 2.6 75 5.5 1,140 1.2 .1 1.9 21 3.6 300 

1.5 3.3 2.8 101 6.0 1,500- 1.3 .8 2.1 36 4.0 425 

1.6 5.7 3.1 152 6.5 1,970 1.4 2.0 2.3 56 4.5 620 

1.7 8.7 3.4 214 7.0 2,540 1.5 3.8 2.5 80 5.0 860 

1.8 12 3.8 322 7.5 3,240 1.6 6.7 2.8 129 5.5 1,140

2~ i gg 4°e 650 Note.- Same as preceding table above 

5.5 feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.1 

.9 

1.1

1.4

1.6

1.4 

1.2 

.9

.7 

.6

1.6 

1.6 

1.2 

1.2 

1.2

1.2 

1.1 

1.2 

1.2 

1.4

1.6 

1.6 

1.6 

1.6 

1.6

1.6

1.6 

1.6 

1.7 

1.9 

2.1

Nov.

2.7 

2.9 

2.9 

2.3 

2.1

2.3 

2.1 

2.1 

2.3 

3.1

4.7 

5.7 

6.3 

6.6 

7.5

8.4 

9.0 

11 

12 

11

11 

11 

11 

11 

11

11 

10 

10 

10 

10

Dec.

10 

11 

12 

12 

32

80 

SO 

75 

54 

42

34 

30 

84 

97 

64

53 

50 

43 

36 

34

35 

34 

32 

27 

36

46 

66 

55 

50 

74 

82

Jan.

179 

240 

138 

95 

80

75 

100 

107 

90 

88

65 

62 

56 

50

45 

42 41* 

49

47

43 

47 

45 

38 

34

36 

34 

36 

34 

35 

36

Feb.

36 

35 

37 

43 

64

112 

228 

120 

97 

104

837 

292 

188 

143 

120

114 

"120 

131 

132 

152

219 

472 

635 

410 

335

286 

254 

219

Month

Octo 

Move 

Deee

Ca

Janu 

Pebn 

Mare 

Apr!

Mav

June 

July 

Augu 

Sept

Ha

lendar year 1948

uapy » . * *

ter year 1948-49 .......................

Mar.

196 

442 

833 

800 

660

630 

478 

381 

416 

2,590

3,060 

1,840 

1,170 

926 

855

1,060 

1,120 

1,040 

1,230 

1,030

795 

656 

543 

460 

408

363 

342 

324 

290 

265 

246

Apr.

230 

215 

202 

191 

187

183 

181 

172 

162 

155

151

142 

134 

125 

118

111 

106 

101 

95 

90

86 

82 

79 

75 

72

70 

67 

70 

70 

66

May

64 

63 

62 

59 

55

50 

49 

53 

55 

49

46 

43 

40 

42 

43

41 

39 

47 

50 

44

40 

38 

35 

34 

32

29

27 

26 

27 

27 

27

£££. »*«

42.3 2.1 

213.0 12 

1,440 97

34,939.7 1,650

2,153 240 

' 5,935 837 

25,449 3,060 

3,788 230 

1,336 64 

360.8 27 

68.5 4.8 

15.6 1.2 

.4 .1

40,801.6 3,060

June

27 

26 

22 

20 

19

17 

16 

16 

15 

14

14 

13 

12 

11 

10

9.3 

8.5 

8.5 

8.9 

9.3

9.3 

7.8 

7.4 

6.7 

6.4

5.7 

5.4 

5.4 

5.1 

5.1

July

4.8 

4.6 

4.3 

4.0 

4.0

4.0 

3.8 

3.6 

3.2 

2.8

2.6 

2.3 

2.0 

1.8

1.7

1.6 

1.4 

1.2 

1.2 

1.2

1.2 

1.2 

1.2 

1.2 

1.2

1.2 

1.2 

1.0 

1.0 

1.0 

1.0

Aug.

1.2 

1.0

.8 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6 

.6 

.6 

.6

.6 

.6

.6 

.4

.4

.3 

.2 

.2 

.2

.2

.2 

.2 

.3 

.4 

.4 

.2

Minimum Mean

0.6 1.36 

2.1 7.10 

10 46.5

.1 95.5

34 69.5 

35 212 

196 821 

66 126 

26 43.1 

5.1 12.0 

1.0 2.21 

.2 .50 

0 .01

0 112

Sept.

0.1 

.1 

.1 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Runoff in 

acre-feet

84 

422 . 

2,860

69,310

4,270 

11,770 

50,480 

7,510 

2,650 

716 

126 

31 

.8

80,930

Peak discharge (base, 2,600 sec.-ft.).- Mar. 10 (10 p.m.) 3.720 sec.-ft.
406 COLUSA AND YOLO BASINS 

Putah Creek near Ouenoc, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 122°31', in sec. 22, T. 11 N., R. 6 

W., Just upstream from Coyote Valley dam site, 2.6 miles upstream from Jerusalem 

Creen, and 3.3 miles downstream from highway bridge at Ouenoc. 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 1949. .

Average discharge'.- 19 years (1930-49), 182 second-feet.

Extremes.- Maximum discharge during year, 5,480 second-feet Mar. 11 (gage height, 10.98 

feet); minimum, 0.7 second-foot Sept. 16.

1904-6, 1930-49: Maximum discharge observed, 24,600 second-feet Mar. 10, 1904 

(gage height, 20.1 feet, datum then in use), from rating curve extended above 14,500 

second-feet; minimum, 0.6 second-foot Sept. 30, Oct. 4, 1932.

Remarks.- Records good. Small diversions above station.

Rating tables, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Dec. 13 Dec. 14 to'Sept. 30

1.2 1.2 l".9 24 1.1 1.3 1.6 10 2.9 152 5.5 925 

1.3 2.2 2.0 31 1.2 2.1 1.8 19 3.5 276 6.0 1,160 

1.4 3.7 2.1 40 1.3 3.1 2.0 34 4.0 404 7.0 1,710 

1.5 6.2 2.3 61 1.4 4.6 2.2 53 4.5 552 9.0 3,440 

1.6 9.5 2.6 100 1.5 6.8 2.5 90 5.0 724 10.0 4,380 

1.7 13 3.0 171

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

2.6 

2.7 

2.9 

2.3 

2.3

2.6 

2.2 

1.8 

1.8 

2.3

2.7 

2.4 

2.3 

2.2 

2.0

1.6 

2.2 

1.8 

2.2 

2.1

2.1 

2.2 

2.3 

2.3 

2.2

2.2 

2.2 

2.1 

2.2 

2.2 

2.3

MOV.

2.6 

2.4 

2.4 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.2

2.2 

2.2 

2.2 

2.2 

2.3

2.3 

2.3 

2.2 

2.3 

2.3

2.2 

2.2 

2.3 

2.3 

2.3

2.3

2.3 

2.3 

2.3 

2.3

Dec.

2.3 

2.3 

2.7 

2.7 

87

69 

100 

94 

46

31

24 

26 

153 

152 

97

72 

68 

65 

64 

60

56 

51 

46 

41 

44

51 

71 

80 

74 

97 

110

Jan.

296 

330 

187 

137 

112

104 

144 

144 

122

101

90 

83 

76 

74 

68

64 

62 

61 

72 

74

76 

119 

112 

97 

89

84 

83 

84 

90 

91 

94

Feb.

91 

90 

116 

190 

426

805 

1,180 

452 

325 

310

1,310 

502- 

340 

267 

227

214 

210 

202 

189 

273

348 

826 

699 

520 

412

338 

296 

254

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

Ser year 1948-49 .......................

Mar.

227 

531 

886 

762 

670

642 

475 

384 

656 

2,450

3,850 

1,980 

1,110 

796 

692

1,380 

1,400 

943 

1,470 

952

717 

635 

546 

452 

379

322 

287 

258 

233 

212 

195

Apr.

181 

171 

160 

150 

142

135 

127 

122 

116 

112

104 

100 

97 

94 

90

89 

86 

84 

80 

76

74 

71 

68 

65 

63

62 

60 

60 

60 

56

Secondfoot-days

69.3 

68.1 

1,939.0

43,082.1

3,420 

11,412 

26,492 

2,955 

1,141 

313.0 

153.7 

85.9 

66.3

48,115.3

May

54 

54 

54 

51 

48

46 

44 

44 

47 

43

39 

36 

36 

38 

39

38 

36 

36 

37 

36

35 

33 

30 

28 

26

24 

22 

22 

22 

22 

21

Maximum

2.9 

2.6 

153

2,080

330 

1,310 

3,850 

181 

54 

20 

6.8 

3.8 

2.6

3,850

June

20 

18 

17 

16 

15

14 

13 

12 

11 

10

9.4 

10 

9.0 

8.4 

8.7

8.7 

8.1 

8.7 

8.7 

8.7

8.7 

8.7 

8.1 

7.8 

7.8

7.8 

7.8 

7.4 

7.4 

7.1

July

6.8 

6.8 

6.6 

6.6 

6.1

6.4 

6.1 

5.9 

5.7 

5.7

5.7 

5.0 

5.5 

5.0 

5.0

5.0 

4.6 

4.6 

4.6 

4.6

4.3 

3.6 

3.7 

3.8 

3.8

3.4 

3.8 

3.8 

3.7 

3,7 

3.8

Aug.

3.8 

3.8 

3.1 

3.6 

3.4

3.4 

3.4 

3.2 

2.9 

2.3

2.3 

2.1 

2.8 

2.8 

2.8

2.8 

2.8 

2.9 

2.8 

2.7

2.7 

2.4 

2.0 

2.0 

2*0

2.0 

2.9 

2.8 

2.6 

2.4 

2.4

Sept.

2.5 

2.6 

2.6 

2.6 

2.6

2.6 

2.5 

2.4 

2.5 

2.6

2.6 

1.8 

1.8 

1.6 

1.6

1.5 

2.3 

2.2 

2.2 

2.1

2.1 

2.1 

2.0 

1.9 

2.1

2.0 

2.2 

2.3 

2.2 

2.2

U1 ! ,, Uaavt RUHOff in Minimum Mean aore. feet

1.6 2.24 137 

2.2 2.27 135 

2.3 62.5 3,850

1.6 118 85,440

61 110 6,780 

90 408 22,640 

195 855 52,550 

56 98.5 5,860 

21 36.8 2,260 

7.1 10.4 621 

3.4 4.96 305 

2.0 2.77 170 

1.5 2.21 132

1.5 132 95,440

Peak discharge (base, 5.000 see.-ft.).- Mar. 11 (6:30 p.m.) 5,480 see.-ft.
COLUSA AND YOLO BASINS 407

Putah Creek near Winters, Calif.

Location.- Water-stage recorder, lat. 38°31', long. 122°05', in NE^ sec. 28, T. 8 N., R. 

~~2'W.', 6 miles west of Winters and, 8 miles downstream from Capell Creek. Datum of gage 

is 160.75 feet.above mean sea level (river-profile survey).

Drainage area.- 614 square miles.

Hecorfls available.- June 1930 to September 1949. 1905-31 at site at Winters, 6 milesdownstream; records equivalent except for very low flows.

Average discharge.- 19 years (1930-49), 448 second-feet.

Extremes.- Maximum discharge during year, 22,700 second-feet Mar. 11 '(gage height, 19.67 

reet); minimum, 1.4 second-feet Aug. 26.

1905-49: Maximum discharge, 70,500 second-feet Feb. 27, 1940 (gage height, 30.5 

feet, present datum), from rating curve extended above 28,000 second-feet by slopearea aomputations; minimum (at present site), 0.3 second-foot Aug. 23, 24, 26, 27, 1931, 

Aug. 7, Sept. 24, 25, 1939.

Remarks.- Records good except those for period of no gage-height record or indefinite 

stage-discharge relation, which are fair. Several pumps above station divert; water 

for irrigation.

Revisions (water years).- W 901: 1937(M), 1938(M).

Rating tablea, water year 1948-49, except period of indefinite stage-discharge relation 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control' method used Nov. 12-30)

Dot. 1 to Feb. 6 Feb. 7 to Sept. 30

3.4 2.4 4.8 74 7.0 -431 3.3 2.0 5.0 88 8.5 

3.6 5.8 5.2 117 7.5 580 3.5 3.9 5.4 140 9.5 

3.8 11 5.6 165 8.0 760 3.6 5.6 6.0 240 10.5 

 4.0 18 6.0 224 3.8 11 6.5 346 11.5 

4.4 40 6.5 315 4.1 22 7.0 478 13.0 

4,4 38 7.5 638 15.0 

4.7 60 8.0 830 16.0

Discharge, in second-feet, water year October 1948 to September 1949

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.

5.8 

5.6 

5.8 

6.0 

6.3

4.5 

2.8 

2.4 

3.2 

4.1

9.1 

16 

9.6 

7.5 

7.0

6.8 

6.8 

6.8 

6.5 

6.5

6.5 

6.8 

7.0 

7.0 

7.0

8.8 

8.2 

ff.2 

8.2

11 

11

Nov.

' 13 

18 

22 

21 

20

21 

22 

24 

26 

26

28 

29 

26 

23

21

18 

17 

15 

13 

7.5

6.8 

9.1 

11 

12 

14

14 

15 

17

17 

19

Dec.

e!4 

e!6 

620

621 

e25

630 

655 

675 

elOO 

elOO

e80 

670 

eSO 

elOS 

202

160 

134 

121 

113 

112

106 

97 

91 

82 

84

112 

202 

253 

190 

170 

180

Jan.

193 

536 

380 

247 

190

161 

145 

180 

180 

146

128 

127 

114 

105 

96

94 

87 

83 

93 

112

114 

160 

235 

193 

162

144 

132 

127 

122 

127 

128

Feb.

128 

127 

129 

156 

622

502 

2,880 

1,160 

674 

492

1,910 

1,240 

734 

512 

414

351 

322 

300 

286 

274

416 

450 

1,210 

834 

782

578 

492 

419

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

365 

506 

2,180 

2,010 

1,440

1,400 

1,040 

814 

750 

4,600

11,300 

7,720 

2,770 

1,840 

1,410

1,720 

2,780 

1,860 

2,470 

2,280

1,530 

1,280 

1,240 

1,040 

879

750 

660 

578 

512 

470 

428

Apr.

396 

375 

346 

320 

300

288 

276 

260 

250 

238

226 

217 

208 

199 

187

182 

130 

175 

165 

153 .

147 

143 

139

133 

126

123 

118 

113 

112 

111

Secondfoot -days

218.8 

545.4 

3,180

68,577.9

5,041 

18,394 

60,622 

6,206 

2,022 

298.4 

127.6 

99.1 

99.8

96,854.1

Peak discharge (base, 6,600 sec. -ft.).- Mar. 11 (9:30

May

105 

101 

100 

99 

94

85 

80 

75 

76 

82

79 

72 

66 

64 

63

62 

62 

59 

64 

66

64 

63 

62 

54 

46

39 

35 

31 

27 

24 

23

Maximu*

16 

29 

253

4,500

536 

2,880 

11,300 

'396 

105 

24

4.1

11,300

June

24

23 

22 

20 

18

16 

16 

14 

13 

11

10 ' 

9.1 

7.7 

6.9 

6.1

6.1 

6.4 

6.1 

6.1 

6.4

5.9 

5.4 

4.8 

4.4 

4.0

4.4 

4.2 

5.2 

6.6 

5.6

Minimum

2.4 

6.8 

14

1.4

83 

127 

365 

111 

23 

4.0

2.0

July

3.8 

4.0 

4.4 

4.6 

5.6

5.2

a4

1,050 

1,560 

2,260 

3,200 

5,310 

9,100 

11,400

Aug.

a3

5 

5 

3

3 

2 

2 

2 

1

1 

3 

4 

4 

4 

4

Mean

18.2' 7.06 

103

187

163 

657 

1,956 

207 65.2' 

9.95 

4.12 

3.20 

3.33

265

p.m.) 22,700 sec. -ft.

.9 

.0 

.8

.1 

.5 

.2 

.0 

.6

.6 

.1 

.6 

.6 

.0 

.1

Sept.

4.1 

3.8 

3.4 

3.6 

3.8

4.0 

4.0 

3.6 

3.6 

3.8

3.2 

2.4 

2.0 

2.2 

2.8

3.1 

3.5 

3.6 

3.8 

4.0

3.8 

3.3 

3.3 

3.0 

3.0

2.9 

3.0 

3.1 

3.0 

3.1

Runoff in 

acre-feet

434 

1,080 

6,310

136,000

10,000 

36,480 

120,200 

12,310 

4,010 

592 

253 

,197 

198

192,100

a No gage-height record; dlacharge computed on basis of recorded range in stage and records for 

station near Quenoc.

e Stage-discharge relation indefinites discharge computed on basis of records for stations at 

Gambles Rench (unpublished) and near Quenoc.
408 COLUSA AND YOLO BASINS 

Putah Creek near Davib, Calif.

Location.- Water-stage recorder, lat. 38° 31 '24", long. 121°47'10", in SE£ sec. 19, T. 8

 N. , K. 1 2 E., in Los Putos Grant, 3.3 miles southwest of Davis. Prior to Dec. 16, 1948, 

at datum 2.00 feet higher? Altitude of gage, about 45 feet (from topographic map).

Records available.- May 1948 to September 1949.

Extremes . - 1948: Maximum discharge during period May to September, 434 second-feet May 6

 (gage height, 4.54 feet, present datum); no flow for several months.

1948-49: Maximum discharge during water year, 23,600 second-feet Mar. 12 (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 except those for periods of backwater or doubtful or no gage-height 

record , and those above 7,000 second-feet, which are fair. Several pumps above station 

divert water for irrigation.

Rating table, water year 1948-49, except period of Indefinite stage-discharge relation 

(gage height, In feet, and discharge, In second-feet)

2.8

2.9

3.0

3.1

3.2

3.3

0

1.2

2.9

6.0

12

21

3.4

3.5

3.6 

3.8 

4.0 

4.2

33

49

71

130

200

278

4.5 

4.8 

-5.2 

5.6 

6.0 

6.5

405

5 SO

810

1,090

1,400

1,810

7.0

8.0

9.0

10.0

12.0

14.0

2,270

3,400

4,80O

6,400

10,200

14,800

Discharge, In second-feet, 1948-49 

1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May

_

-

-

_

-

407

364

326

309

284

268

248

229

214

202

191

172

161

161

165

161

158

143

120

28

23

34

64

68

97

120

June

117

130

104

85

87

80

78

76

66

60

53

47

40

34.

30

26

23

16

14

14

13

11

12

14

16

13

13

11

9.0

7.5

-

July

6.2

7.5

5.7

6.6

3.9

1.7

.6

0

O

O

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

Aug. Sept.
COLUSA AND YOLO BASINS

Discharge, In Second-feet, of Putah Creek near Davls, Calif., 1948-49 Continued

1948-49

Daj

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nor. Dec.

0

0

0

0

0

0

0

0

0

0

0'

0

0

0

0

alO

a77

a64

56

53

53

46

42

38

36

69

133

258

223

170

163

Jan.

174

270

490

298

211

163

137

140

163

160

129

118

108

94

86

82

67

60

71

91

100

115

234

204

160

137

124

115

115

118

112

Feb.

103

97

94

106

346

634

2,370

1,470

705

490

895

1,540

796

535

414

353

315

294

278

258

286

428

912

936

782

610

500

432

-

-

-

liar.

384

375

1,780

1,950

1,540

1,380

1,080

796

658

3,550

9,180

12,600

3,500

2,090

1,620

1,580

2,540

1,980

2,010

2,570

1,620

1,330

1,260

1,130

950

803

677

586

525

475

432

Apr.

401

379

353

332

307

290

274

262

246

238

227

215

204

193

178

170

d!70

d!63

d!56

d!46

d!40

d!37

d!30

d!27

d!21

dl!5

dl!2

d!09

d!09

d!03

-

Hay

d97

d94

91

88

83

77

69

67

64

62

67

58

51

46

42

41

33

38

38

44

39

39

36

34

31

25

16

13

9.6

7.0

5.2

June

9.6

3.7

2.9

2.2

2.0

1.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

July Aug. Sept.

base, 5.000 sec.-ft.).- Mar. 12- (2:30 a.m.) 23,600 sec.-ftJ

puted on basis'of records near Winters.

rs.

discharge cornMonthly discharge, In second-feet, 1948-49

Month

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

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

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

The period. .............. .

October 1948 ..................... .........

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

Calendar year .......................

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

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

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

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

September. ..........'........................

Water year 1948-49 .......................

Secondfoot-days

4,717

1,299.5

0

0

-

1,491

-

16,979

6,107

1,504.8

0

0

0

93,700.5

Maximum

407

130

7.5

0

0

-

258

_

2,370

97

9.6

0

0

0

12., 600 '

Minimum

7.5

0

0

0

-

0

-

94

5.2

0

0

0

0

0

Mean

0

0

-

48.1

-

606

48.5

0

0

0

257

Runoff in 

acre-feet

0

12,000

2,960

2,980

0

0

0

185,900
410 NAPA RIVER BASIN

Na pa "River near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29'40", long. 122°.25' 50"', In SEi sec. 32, T.

8 N., K. 5 W., 0.2 mile upstream from highway bridge, 1.3 miles northeast of Zlnfandel, 

and 2.5 miles east of St. Helena. Altitude of gage, about 20*0 feet {fromutopographlc 

map).

Drainage area.- 83.5 square miles.

Records available.- November 1929 to September 1932, November 1939 to September 1949.

Average discharge.- 11 years (1930-32, 1940-49), 73.5 second-feet.

Extremes.- Maximum discharge during year, 4,820 second-feet Mar. 11 (gage height, 9.42 

feet); no flow at times during October and possibly November.

1929-32, 1939-49: 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 except those for.periods of no gage-height record, which are poor, 

small diversions above station for irrigation.

Discharge, in aecond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.4 

.2 

.9 

.9 

.8

.4 

.5 

.2 

.4

.4

.9

1.1 

1.1 

1.0 

1.0

al.O 

a. 9 

a. 9 

a. 9 

.8

.8 

.8 

.8 

.8 

.8

.Z 

a. 3 

a. 5 

.6 

.6 

-.6

Nov.

0.7 

.9

1.7

. al.7

Dec.

al.7 

al.7 

al.7 

1.7 

5.6

7.0 

5.1 

17 

7.4 

4.5

3.6 

3.1 

6.Z 

30 

ZO

13 

ZO 

23 

22 

19

15 

12 

10 

8.7 

14

64 

168 

84 

50 

55 

46

Jan.

94 

90 

47 

32 

24

20 

18 

17 

15 

14

12 

12 

12 

12 

10

10 

10 

10 

ZO 

25

23 

72 

76 

46 

34

28 

25 

22 

20 

ZO 

19

Feb.

18 

17 

24 

74 

124

224 

426 

158 

104 

85

314 

156 

105 

82 

71

62 

56 

51 

46 

50

54 

80 

118 

132 

115

95 

85

72

Month

Ooto 

Hove 

Deoe

Ca

Janu 

Febr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

65 

239 

384

4Z1 

367

272 

196 

144 

284 

942

2,580 

1,080 

519 

346 

292

504 

392 

274 

612 

375

280 

280 

243 

195 

159

127 

112 

100 

88 

80 

75

Apr.

68 

64 

58 

52 

51

50 

47 

45 

42 

40

39 

36 

35 

33 

31

30 

30 

29 

27 

Z5

24 

23 

22 

21 

20

20 

19 

19 

18 

18

Secondfoot-days

21.5 

49.2 

740.0

14,846.8

889 

2,998 

12,027 

1,036 

392.3 

91.2 

60.2 

37.8 

15.8

18,358.0

Peak discharge (base, 2,300 sec, -ft.).- Mar. 11 (5 p.m

May

17 

17 

17 

17 

14

12 

13 15 ' 

15 

14

14 

12 

13 

14 

14

14 

14 

13 

14 

14

13 

12 

11 

12 

8.6

9.6 

9.1 

6.2 

7.4 

8.2 

8.2

Maximum

1.1 

168

847

94 

426 

2,580 

68 

17 

6.2 

4.8 

2.2 

1.2

2,580

June

6.2 

5.2 

5.2 

4.8 

4.5

4.5 

3.6 

4.2 

2.6 

2.4

2.7 

3.6 

3.5 

2.9 

3.6

2.9 

1.5 

1.2 

2.6 

1.0

1.8 

2.8 

3.1 

2.2 

1.9

2.0 

. 2.6 

2.6 

2.0 

1.5

Minimum

July~

1.6 

1.8 

4.8 

3.1 

4.8

3.1 

3.0 

1.6 

1.6 

1.6

1.5 

1.5 

1.5 

1.5 

.6

.6 

1.3 

1.5 

1.5 

1.5

1.0 

1.3 

2.6 

2.2 

2.4

2.4 

2.6 

1.2 

.9 

1.4 

2.2

0.2

1.7

-

10 

17 

65 

18 

6.2 

1.0 

.6 

.5 

.1

-

Aug.

1.6 

1.1 

1.5 

1.8 

1.6

2.2 

2.2 

.8 

1.4 

1.3

.9 

1.3 

1.8 

1.6 

1.8

1.5 

1.6 

1.5 

.6

.7

»6 

.7 

.5 

1.0 

.5

.5

.7 

1.3 

.8 

1.2 

1.2

Mean

0.69 

1.64 

23.9

40.6

28.7 

107 

388 

34.5 

12.7 

3.04 

1.94 

1.22 

.53

50.3

Sept.

1.2 

.6 

.5 

.5 

.5

1.0 

.9 

.4 

.2 

.1

.5

.7 

1.2 

.6 

.8

.7 

.1 

.1 

.6 

.5

.1 

.2 

.3

.7 

.7

.7 

.5 

.4 

.3 

.2

Runoff in 

aore-feet

43 

98 

1,470

29,450

1,760 

5,950 

23,860 

2,050 

778 

181 

119 

75 

31

36,420

.} 4,820 sec. -ft.

a No gage-height record; discharge interpolated.
NAPA RIVER BASIN 411

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 1949.

Average discharge.- IS years (1930-45), prior to construction of Conn Valley Dam, 34.7 

second-raet.

Extremes.- Maximum discharge during year, 26 second-feet Mar. 11 (gage height, 1.83 

reet); no flow for several months.

1930-49: 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 menths 

each year.

Remarks.- Records fair. Flow completely regulated by storage in Conn Valley Reservoir 

 beginning in December 1945 (capacity,. 31,000 acre-feet); contents, 18,700 acre-feet 

Sept. 30, 1948, and 26,300 acre-feet on Sept. 30, 1949. 

Small diversions for water supply and irrigation.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

0 

0

0 

0

0

0 

2.7 

5.6 

6.1 

6.1

6.7 

6.1 

6.7 

6.7 

6.7

7.3 

7.3 

7.3 

7.3 

7.3

7.3 

7.3 

7.3 

7.3 

7.3

5.0 

.4 

.2 

0 

0 

0

Nov. ' Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janui 

Pebn 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

uary. ... ...... »

ter year 1948-49 .......................

Mar.

0 

0 

0 

0 

0

0 

0

0 

0

2.5

12 

4.9 

2.2 

1.5 

1.3

1.2 

1.0 

.8 

1.2 

1.2

1.0 

1.0

1.0 

1.0

1.2

.8 

 .8 

.6 

.6 

.6 

.5

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

5.1

4.3 

3.6 

3.4 

.6 

.3

.2 

2.1 

.5 

.9 

1.7

.6 

.4 

.1 

.3

2.5

Secondfoot -days

132.0 

0 

0

842.4

0 

0 

38.9 

26.6 

113.9 

232.0 

200.7 

166.0 

180.0

1,090.1

May

4.0 

5.0 

5.6 

5.6 

4.5

4.0 

3.6 

3.6 

2.8

1.3

1.2 

1.2 

1.2 

1.5 

2.5

2.8 

3.2 

3.2 

3.2

3.2

3.2 

2.8 

2.8 

3.2 

5.6

5.6 

5.6 

5.7 

6.7 

5.0 

4.5

Maximum

7.3

0 

0

15

0 

0 

12 

5.1 

6.7 

9.5 

8.7 

6.7 

6.1

12

June

.5 

.5 

.6 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

.3 

6.7 

6.7 

7.3

8.0 

8.0 

8.0 

8.0 

8.0

8.7 

8.7 

8.7 

8.7 

9.5

9.5 

9.5 

9.5 

9.5 '8.7

Minimum

July

0 

0 

0

0

0 

0 

0 

0 

1.2 

4.5 

4.6 

2.0 

5.6

0

8.7 

8.0 

8.0 

7.3 

6.7

7.3 

6.7 

7.3 

7.3 

7.3

5.0 

4.6

6.7 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1 

S.I

Aug.

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.7 

6.7 

6.7 

6.7 

6.7

6.7 

6.1 

6.1 

6.1 

6.1

6.1 

5.4 

6.0 

2.0 

2.5

2.5 

2.5 

2;5 

2.5 

2.8 

5.6

Mean

4.26 

0 

0

2.30

0 

0 

1.25 

.89 

3.67 

7.73 

6.47 

5.35 

6.00

2.99

Sept.

5.6 

5.6 

5.6 

6.1 

6.1

6,1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

6.1 

6.1 

6.1 

6.1

6.1 

5.6 

5.6 

5.6 

6.1

Runoff In 

acre-feet

262 

0 

0

1,670

0 

0 

77 

53 

226 

460 

398 

329 

357

2,160
412 PETALUMA CREEK BASIN 

Petaluma Creek near Petaluma, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°15'40", long. 122°39 ! 35", 

in Koblar De La Miserla Grant, 70 feet downstream from county road bridge, 1.3 miles 

downstream from Llchau Creek, and 2.0 miles northwest oT Petaluma-, Sonoma County. 

Altitude of gage, about 40 feet (from topographic map).

Drainage area.- 29.6 square miles.

Records available.- October 1948 to September 1949.

Extremes.- Maximum discharge during year, 1,130 second-feet Mar. 11 (gage height, 10.45 

reet); no flow for several months.

Remarks.- Records good except those for Oct. 1 to Feb. 18, which are poor. No storage 

or diversion above station.

Rating tables, water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Shifting-control method used Feb. 7-14)

Oct. 1 to Feb. 18 Feb. 19 to Sept. 30

0.9

1.0

1.1 

1.3

1.7 

3.1

1.6 

1.9 

3.3

0.9

1.0

1.1

1.2

1.3 

1.5

0.03

.2

.5

1.2

3.5

8.5

3.0 

2.6

4.4 

5.0

74

110

150

315

5.6 

6.3

7.0 

7.8

307

426

545

681

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

3

3 

4 

5

6 

7 

8 

9 

10

11

13 

13 

14

15

16 

17 

18 

19 

30

31 

32 

33 

34 

25

26 

27 

28 

29 

30 

31

Oct.

. eO.05

Nov.

eO.05

Dec.

0.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

2.5 

1.6 

.4 

.2

.1 

.1 

.1 

.1 

1.0

37 

21 

4.3 

1.7 

1.0 

.8

Month

Octo 

Hove 

Dece

Ca

janu 

Febn 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

Jan.

0.9 

2.1 

.9 

.4 

.3

.2 

.3 

.3 

.2 

.1

.1

.1 

.1 

.1 

.1

.1 

.1 

.1 

.5 

1.4

.7 

11 

4.5 

1.8 

.9

.6 

.5 

.4 

.4 

.5 

.3

Feb.

0.3 

.5 

.5 

1.5 

5.5

15 

34 

6.8 

3.3 

2.5

33 

7.0 

3.0

1.7 

al.7

al.8 

al.9 

a2.3 

2.5 

2.4

2.4 

2.1 

5.3 

10 

9.2

6.7 

8.8 

5.8

lendar year

ter year 1948-49 .......................

Mar.

4.6 

65 

67 

64 

144

40 

21 

14 

75 

447

666 

152 

43 

26 

31

31 

21 

16 

188 

37

20 

33 

36 

16 

13

10 

8.8 

7.6 

6.1 

5.2 

4.6

Apr.

4.3 

4.0 

3.4 

2.8 

2.4

2.3 

2.3 

2.1 

1.9 

1.9

1.6 

1.6

1.4 

1.4 

1.4

1.4 

1.6 

1.3 

1.0 

1.0

.8 

.7 

.7 

.6 

.5

.4 

.4 

.4 

.6 

.8

foo0t-SayS

1.55 

1.50 

63.4

-

29.3 

166.1 

2,291.9 

46.7 

5.3 

.90 

0 

0 

0

3,606.65

May

0.4 

.4 

.3 

.3 

.3

.2 

.3 

.3 

.3 

.2

.1 

.1 

.1 

.1 

.1

.3 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

Kaxi* 

27

-

11 

34 

666 

4.3 

.4

0

0 

0

666

June

. eO.03

Minimum

July

.1

-

.1

.3 

4.6 

.4 

.1

0 

0 

0

0

Aug.

Mean

0.05 

.05 

3.05

-

.95 

5.93 

73.9 

1.56 

.17 

.03 

0 

0 

0

7.14

Sept.

Runoff In 

acre -feet

3.1 

3.0 

136

-

58 

339 

4,550 

93 

11 

1.8 

0 

0 

0

5,170

Peak discharge (base. 300 sec.-ft.).- Mar. 5 (8 a.m.) 307 aeo.-ft.; Mar. 11 (3 p.m.) 1,130 see.- 

ft.: Mar. 19 (12 m.; 373 sec.-ft.

a No gage-height record; discharge estimated on basis of observations, 

e Daily discharge less than 0.1 sec.-ft.
NOVATO CREEK BASIN 413

Novato Creek near Novato, Calif.

Location.- 'Water-stage recorder, lat. 38°07i, long. 122°36 I , in Novato Grant, 500 feet 

downstream from county road bridge and 1 mile west of U. S. Highway 101 in Novato, 

Marin County.. Altitude of gage, about 45 feet (from topographic map).

Drainage area.- 16.9 square miles.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 748 second-feet Mar. 11 (gage height, 6.41 feet); 

no now for several months.

1946-49: Maximum discharge, that of Mar. 11, 1949; no flow for several months each 

year.

Remarks.- Records fair. No storage or diversion.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec.

0 

0 

0 

0

0

0 

0 

0 

0 

0

o

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.7

18 

30 

9.9 

5.3 

3.3 

2.8

Jan.

4.3 

4.2 

2.6 

2.4 

2.2

2.0 

1.9 

1.9 

1.7 

1.6

1.4 

1.2 

1.2 

1.1 

1.0

1.0 

.9 

.9 

9.3 

5.7

9.5 

23 

13 

8.4 

6.1

4.6 

3.9 

3.3 

2.6 

2.6 

2.4

Feb.

2.2 

2.4 

3.1 

6.9 

8.9

44 

66 

28 

22 

20

46 

24 

19 

17 

16

15 

14 

13 

12 

13

12 

13 

13 

38 

23

28 

26 

21

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Hare 

Aprl

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

19 

150 

92 

91 

146

74 

57 

42 

102 

341

465 

210 

108 

77 

65

55 

37 

28 

158 

75

62 

73 

54 

41 

33

27 

23 

20 

17 

16 

14

Apr.

12 

12 

10 

8. "9 

8.4

8.4

7.9 

7.1 

7.1 

6.6

6.1 

5.7 

5.3 

4.9 

4.6

4.6 

4.2 

4.2 

3.9 

3.9

3.6 

3.3 

3.1 

2.6 

2.6

2.4 

2.4 

2.4 

2.2 

2.2

Secondfoot-days

0 

0 

70.0

592.9

127.9 

566.5 

2,772 

162.6 

38.9 

8.6 

.6 

0 

0

3.747.1

Peak discharge (base, 2OO sec. -ft.).- Feb. 6 (10 p.m.)

May

1.6 

1.9 

1.7 

1.6 

1.6

1.6 

1.4 

1.1 

1.2 

1.2

1.1 

1.2 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.2 

1.2

1.1 

1.1 

1.1 

1.1 

1.0

.9 

.9 

1.0 

1.0 

.9 

.8

Maximum

0 

0 

30

42

23 

66 

465 

12 

1.9 

.8 

.1 

0 

0

465

June

0.8 

.7 

.5 

.4 

.2

.4 

.4 

.4 

.4 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1

July

0.1

.1 

.1 

.1 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0

o

0 

0 

0 

0 

0 

0

Aug. Sept.

Minimum Mean *£%£

00 0 

00 0 

0 '2.26 139

0 1.62 1,170

.9 4.13 254 

2.2 20.2 1,120 

14 89.4 5.50O 

2.2 5.42 323 

.8 1.25 77 

.1 .29 17 

0 .02 1.2 

00 0 

00 0

0 10.3 7.4SO

242 seo.-ft.; Mar. 5 (5 a.m.) 262 sec. -ft. ;

Mar. 11 (10 a.m.) 748 sec.-ft.; Mar. 19 (8 a.m.) 403 sec.-ft.
414 RUSSIAN RIVER BASIN

Russian River near Hopland, Calif.

Location.- Water-stage recorder, lat. 39°01'35", long. 123 0 07'4S", 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 Creejk. Datum of gage Is 497.43 feet afcove mean sea

level, datum of 1929:

Drainage area.- 362 square miles.

Records available.- December 1939 to September 1949.

Extremes.- Maximum discharge during year, 9,730 second-feet Feb. 11 (gage height, 15.17 

feet); minimum, 29 second-feet June 26, 27.

1939-49: 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 floodmarlcs.

Remarks.- Records good. Flow considerably affected by diversion Into basin; see "Remarks". 

For~~East Fork Russian River near Calpella. Small diversions above station for irrigation.

Revisions.- W 1041: Drainage area.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge, in second-feet)

(Backwater corrections applied Nov. 16 to Dec. 5; 

shifting-control method used June 14 to Aug. 23, Sept. 20-30)

Oct. 1 to Mar. 11 Mar. 12 to Sept. 30

4.8 27 5.8 370 9.5 3,OOO 5.2 20 5.8 170 9.0 2,270 

4.9 48 6.1 525 11. 0 4,430 5.3 35 6.0 245 10.5 3,750 

5.0 76 6.5 760 12.5 6,100 5.4 54 6.4 430 12.5 6,070 

5.2 144 7.0 1,080 5.5 77 7.0 755 

5.5 351 8.0 1,760 5.6 104 8.0 1,440

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

. 14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

201 

208 

222 

222 

211

208 

208 

208 

215 

211

215 

215 

215 

215

215

172 

117 

110 

190 

201

204 

204 

148 

68

51

158 

186 

193 

197 

148 

83

Nov.

62 

186 

215 

222 

219

211

204 

204 

215 

215

219 

215 

208 

201 

208

215 

222 

222 

226 

237

233 

226 

215 

204 

190

113 

107 

42 

65 

168

Dec.

197 

208 

215 

162 

399

500 

690 

732 

430 

348

288 

362 

937 

1,060 

652

492

420 

303 

219 

204

284 

288 

281 

281 

270

587 

754 

712 

748 

944 

996

Jan.

1,720 

1,330 

840 

646 

542

481 

450 

415 

385 

366

348 

339 

335 

326 

318

315 

315 

311 

335 

395

357 

425 

4SO 

410 

380

3S6 

357 

357 

357 

352 

348

Feb.

348 

344 

375 

957 

1,560

1,650 

2,730 

1,500 

1,210 

1,620

5,580 

2,070 

1,470 

1,220 

1,090

1,050 

1,000 

950 

904 

956

982 

1,600 

1,650 

1,400 

1,190

1,070 

996 

904

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Mare 

Apr! 

Mav

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 '.......................

Mar.

852 

1,620 

3,420 

3,190 

2,350

2,040 

1,660 

1,380 

1,540 

4,450

6,070 

3,860 

2,260 

1,730 

2,110

3,070 

3,230 

5,390 

6,06% 

3,410

2,240 

2,130 

1,800 

1,500 

1,280

1,120 

999 

901 

828 

761 

707

Apr.

662 

629 

596 

568 

541

520 

505 

495 

475 

465

450 

430 

405 

395 

385

376 

371 

371 

358 

344

335 

330 

326 

322

312

317 

312 

322 

340 

330

Secondfoot-days

5,619 

5,689 

14,963

190,016

14,681 

38,376 

73,958 

12,587 

7,850 

1,789 

2,786 

4,410 

4,048

186,756

Hay

312 

317 

312 

294 

290

276 

268 

268 

290 

272

281 

258 

254 

268 

286

272 

237 

254 

268 

268

281 

268 

258 

241

241

225 

213 

191 

138 

126 

123

Maximum

222

237 

1,060

8,360

1,720 

5,580 

6,070 

662 

317 

113 

132 

174 

174

6,070

June

* 113 

113 

110 

96 

85

35 

82 

77 

75 

68

63 

65 

59

50 

41

39 

39 

41 

46 

48

46 

46 

41 

34 

28

26 

28 

29 

50 

68

July

70 

72 

72 

75 

77

77 

70 

70 

75 

77

77 

85 

80 

80 

75

75 

77 

77 

85 

96

96 

107 

101 

113 

132

123 

107 

113 

116 

113 

123

Aug.

149 

142 

135 

129 

138

132 

170 

174 

135 

129

126 

120 

135 

149 

146

132 

129 

138 

138 

146

149 

149 

138 

' 142 

149

149 

152 

146 

149 

149 

146

Minimum Mean

51 181 

42 190 

162 483

42 519

311 474 

344 1,371 

707 2,386 

312 420 

123 253 

26 59.6 

70 89.9 

120 142 

107 135

26 512

Sept.

138 

132 

129 

129 

138

160 

129 

132 

152 

163

149 

138 

, 146 

129 

135

138 

149 

152 

174 

146

129 

120 

113 

107

110

126 

123 

116 

123 

123

Runoff in 

acre-feet

11,150 

11,280 

29,680

376,900

29,120 

76,120 

146,700 

24,970 

15,570 

3,550 

5,530 

8,750 

8,030

370,400

Peak discharge (base, 9,600 see.-ft.).- Feb. 11 (5 a.m.) 9,730 sec.-ft.
RUSSIAN RIVER BASIN

Russian River near Healdsburg, Calif.

415

Location.- Water-stage recorder, lat. 38°36'45", long. 122°50'05", in SEir sec. 22, T. 9 

B., K. 9 W., 2 miles east of Healdsburg and 3.5 miles upstream from Dry Creek. Datura 

of gage is 76.84 feet above mean sea level, datum of 1929 (levels by Corps of Engineers).

Drainage area.- 791 square miles.

Records available.- December 1939 to September 1949.

Extremes.- Maximum discharge during year, 24,400 second-feet Mar. 11 (gage height, 15.61 

feet ) ; minimum, 27 second-feet June 25.

1939-49: Maximum discharge, 67,000 second-feet Feb. 28, 1940 (gage height, 30.0 

feet), from rating curve extended above 50,000 second-feet; minimum, that of 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 affected by diversion into basin, see "Remarks" for East Fork Russian River near 

Calpella.

Revisions.- W 1041: Drainage area.

Rating table, vater year 1948-49 (gage height, In feet,

and discharge, In second-feet) 

(Backwater corrections applied Oct. 1 to Dec. 6)

1.0 50 2.6 540 8.0 6,650 

1.1 60 3.0 810 3.0 8,420 

1.3 86 3.6 1,250 10.0 10,300 

1.5 120 4.0 1,580 11.0 12,400 

1.7 164 5.0 2,570 12.0 14,700 

2.0 248 6.0 3,730 13.0 17,200 

2.3 370 7.0 5,100 13.9 19,500

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

6 

9 

10

11 

12 

13 

14 

15

16 

17 

IB 

19 

20

21 

22

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

195 

192 

197 

208 

211

208 

197 

194 

192 

192

194 

200 

202 

202 

205

208 

200 

169 

146 

152

182 

192 

194 

186 

146

120 

118 

128 

169 

179 

176

Nov.

152 

141 

174 

222 

222

222 

222 

219 

216 

219

226 

226 

229 

229 

229

235 

245 

255 

259 

259

259 

259 

259 

255 

245

238 

202 

192 

162 

152

Dec.

164 

202 

235 

252 

289

618 

598 

943 

789 

586

452 

392

621 

1,340 

1,160

859 

719 

618 

498 

403

361 

386 

381 370 ' 

552

1,010 

1,650 

1,350 

1,100 

1,250 

1,510

Jan.

1,680 

2,540 

1,620 

1,180 

950

824

761 

726 

657 

592

546 

516 

492 

469 

447

430 

414 

403 

498 

553

560 

705 

768 

705 

624

572 

540 

522 

504 

504 

498

Feb.

486 

486 

516 

579 

1,860

2,140 

5,580 

3,320 

2,230 

1,840

6,300 

4,990 

2,840 

2,020 

1,630

1,440 

1,330 

1,230 

1,150 

1,170

1,430 

2,280 

3,880 

3,020 

2,440

1,960 

1,780 

1,520

Month

Goto 

Hove

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June

July 

Augu 

Sept

Ha

lendar year 1948

ter year 1948-49 .......................

Mar.

1,370 

3,960 

7,740 

9,250 

7,120

5,790 

4,380 

3,450 

3,360 

9,920

19,300 

14,400 

7,910 

5,440 

4,840

7,380 

8,530 

9,600 

11,500 

9,650

6,220 

5,120 

4,760 

3,770 

3,180

2,720 

2,350 

2,080 

1,850 

1,680 

1,540

Apr.

1,430 

1,320 

1,240 

1,150 

1,080

1,030 

978 

936 

901 

359

- 824 

796 

761 

719 

698

870 

644 

631. 

612 

586

560 

546 

522 

510 

492

492 

480 

472 

492 

492

Secondfoot -days

5,654 

6,624 

21,458

351,852

22,800 

61,447 

190,160 

22,925 

11,100 

3,001 

2,618 

3,530 

3,243

354,560

May

480 

474 

480 

458 

464

447 

403 

398 

408 

408

392 

381 

361 

361 

376

381 

256 

353 

342 

342

338 

333 

316 

308 

292

264 

266 

255 

242 

216 

205

Maximum

211 

259 

1,650

15,800

2,540 

6,500 

19.300 

1,430 

480 

194 

107 

126 

118

19,300

June

194 

182 

169 

.157 

148

139 

135

128 

122 

115

106 

104 

99 

96 

89

'88 

82 

78 

72 

79

76 

71 

70 

68 

57

59 

58 

55 

53 

52

July

52 

58

64 

67 

72

73 

75 

73 

75 

80

80 

80 

80 

82 

82

82 

83 

88 

91 

88

89 

92 

94 

100 

107

106 

100 

100 

99 

102 

104

Aug.

109 

113 

118 

116 

113

113 

113 

116 

126 

124

115 

113 

109 

109 

115

116 

115 

109 

109 

109

109 

113 

116 

113 

111

113 

115 

116 

116 

115 

113

Minimum Mean

118 182 

141 221 

164, 692

88 961

403 735 

486 2,195 

1,370 6,134 

474 764 

205 358 

52 100 

52 84.5 

109 114 

97 108

52 971

Sept.

Ill 

109 

107 

107 

107

106 

109 

109 

106 

107

115 

118 

115 

113 

111

107 

106 

107 

111 

118

115 

109 

102 

99 

97

97 

104 

107 

107 

107

Runoff In 

aore-feet

11,210 

13,140 

42,560

697,900

45,220 

121,900 

377,200 

45,470 

22,020 

5,950 

5,190 

7,000 

6,430

703,300

Peak discharge (base. 19,000 see.-ft.).- Mar. 11 (5 p.m.) 24,400 sec.-ft.
416 RUSSIAN RIVER BASIN

Russian River at Guerneville, Calif.

Location.- Wire-weight gage, lat. 38°30 I 03", long. 122°59'36", in NVf£ sec. 32, T. 8 N., 

H. 10 W., at highway bridge in Guerneville, 6.5 miles upstream from Austin Creek.. 

Datum of gage is 8.67 feet above mean sea level, datum -of 1929.

Drainage area.- 1,346 square miles.

Records available.- December 1939 to -September 1949.

Extremee.- Maximum discharge during year, 41,400 second-feet Mar. 12 (gage height, 29.48 

 feet), minimum daily, 65 second-feet June 30 to July 3.

1939-49: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.87 

feet); minimum observed, 64 second-feet Aug. 7, 1947.

Remarks.- Records good except those for periods of no gage-height record or indefinite 

stage-discharge relation, which are fair. Gage read twice daily with additional readings during periods of high water except for Oct. 1 to Dec. 31 and May 18 to Sept. 30, 

when record from a temporary-recorder 4 miles above Guerneville was used. Many diversions above station for irrigation. Plow also affected by diversion into basin; see 

"Remarks" for East Pork Russian River near Calpella.

Revisions.- W 1041: Drainage area.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 9- 

10

11 

12 

13 

14 

IS

16 

17 

18 

19 

£0

21 

22 

23 

24 

25

26 

27 

28 

29 

50 

31

Oct.

193 

200 

205 

210 

215

217 

210 

205 

203 

203

208 

208 

205 

205 

205

205 

205

» 192 

172 

158

164 

178 

185 

190 

181

159 

143 

140 

155 

165 

175

Nov.

179 

178 

208 

200 

219

220 

219 

215 

210 

208

208 

208 

206 

208

212

213 

217 

220 

228

231

231 

231 

233 

233 

228

222 

213 

195 

185 

169

Dec.

163 

172 

193 

208 

249

442 

632 

696 

916 

662

aSOO 

a450 

3550

alj 3oo 

al,500

a900 

aSOO 

a700 

asoo 

aSOO

a450 

aSOO 

aSOO 

a450 

aGOO

al.100 

a2 , 600 

2,400 

1,830 

1,630 

1,770,

Jan.

1,820 

2,860 

2,460 

1,780 

1,440

1,240 

1,130 

1,060 

964 

858

781 

732 

704 

666 

630

590 

560 

540 

610 

970

898 

970 

1,340 

1,200 

1,050

940 

864 

808 

770 

748 

715

Feb.

698 

676 

693 

748 

1,470

2,530 

7,380 

5,880 

3,770 

2,950

5,860 

7,760 

4,450 

3,320 

2,550

2,140 

1,920 

1,740 

1,590

1,530

1,980 

1,900 

5,120 

4,700 

4,220

3,320 

3,010 

2,510

Month

Goto 

Hove 

Dece

Ca

Janui 

Febn 

Mare 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

lender year 1948 

ai*y

ter year 1948-49 .......................

Mar.

2,170 

6,140 

12,700 

15,000 

21,800

10,800 

7,780 

5,870 

5,390 

17,600

32,500 

34,800 

17,700 

10,100 

7,720

10,100 

12,700 

13,500 

15,800 

16,100

10,300 

7,670 

7,750 

6,050 

5,090

4,400 

3,820 

3,250 

2,870 

2,540 

2,300

Apr.

2,110 

1,940 

1,S10 

1,670 

1,570

1,480 

1,400 

1,330 

1,280 

1,210

1,160 

1,120 

1,080 

1,020 

976

946 

910 

898 

868 

828

790 

751 

729 

702 

674

646 

630 

630 

619 

619

Secondfoot-days

5,859 

6,347 

25,963

513,874

32,698 

86,415 

323,310 

32,396 

13,062 

3,800 

2,242 

3,567 

3,363

539,022

May

597 

575 

565 

555

515

e520 

e490 

e470 

e480 

e480

e460 

e450 

e430 

e420 

e430

e440 

e420 

408 

396 

405

396 

396 

381 

356 

339

322 

302 

288 

276 

261 

239

Maximum

217 

233 

2,600

20,600

2,860 

7,760 

34,800 

2,110 

597 

228 

91 

126 

119

34,800

June

£28 

219 

208 

193 

187

178 

169 

162 

155 

148

142 

135 

129 

120 

117

alls 

alOS 

100 

a95 

alOO

a95 

a90 

a90 

a8S 

a80

a75 

a75 

870 

870 

1 a65

July

a65 

865 

865 

866 

867

aS8 

aS9 

69 

69 

69

69 

70 

70 

71 

71

72 

73 

71 

69 

69

70 

69 

70 

73 

76

78 

82 

85 

85 

86 

91

Minimum

140 

169 

163

98

540 

676 

2,170 

619 

239 

65 

65 

91 

102

65

Aug.

91 

96 

98 

103 

109

109 

109 

112 

117 

124

126 

120 

117 

116 

116

118 

119 

119 

118 

117

117 

118 

119 

122 

119

117 

118 

119 

122 

122 

120

Mean

189 

212 

838

1,404

1,055 

3,086 

10,430 

1,080 

421 

127 

72.3 

115 

112

1,477

Sept.

119 

119 

117 

117 

117

117 

114 

115 

115 

110

109 

1 116 

118 

117 

116

114 

109 

108 

109 

102

118 

119 

115 

106 

105

104 

102 

105 

105 

106

Runoff in 

acre-feet

11,620 

12,590 

51,500

1,019,000

64,860 

171,400 

641,300 

64,260 

25,910 

7,540 

4,450 

7,080 

6,670

1,069,000

a No recorder record; discharge computed on basis of records for station near Healdsburg. 

e Stage-discharge relation Indefinites discharge computed on basis of records for station near 

Healdsburg.'
RUSSIAN RIVER BASIN 417

East Pork Russian River near Calpella, Calif.

^-Water-stage recorder, lat. 39°15', long. ia3°09', in sec. 13, T. 16 N., R. 12 

"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 1949.

Extremes.- Maximum discharge during year, 4,240 second-feet Feb. 10 (gage height, 9.28 

feet); minimum, 20 second-feet June 23.

1941-49: Maximum discharge, 11,200 second-fget Jan. 21, 1943 (gage height, 13.67 

feet), from rating curve extended above 5,000 second-feet by logarithmic plotting; 

minimum, 7 second-feet Dec. 13, 1943.

Remarks.- Records good. Plow greatly affected by diversion from Eel River through Potter 

Valley powerhouse (see p.424). Small diversions above station for irrigation.

Revisions.- W 1041: Drainage area.

Rating table, water year 1948-49 (gage height. In feet, 

and discharge, In second-feet)

0.7 23 1.7 78 4.0 530 

.8 26 2.0 104 4.5 700 

.9 30 2.3 136 5.0 905 

1.0 34 2.6 178 5.6 1,190 

1.2 44 3.0 258 6.3 1,570 

1.5 63 3.5 384

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

8 

3 

4 

5

6 

7 

8 

9 

10

11 

18 

13 

14 

15

16 

17 

18 

19 

20

81 

88 

83 

84 

25

26 

87 

28 

29- 

30 

31

Oct.

208 

215 

221 

221 

202

219 

209 

217 

211 

213

215 

215 

213 

215 

215

104 

91 

152 

213 

213

213 

209 

47 

30 

110

209 

209 

£09 

£09 

70 

35

Nov.

126' 

217 

223 

215 

213

204 

202 

211 

213 

213

213 

211 

187 

192 

213

223 

217 

213 

221 

219

215 

215 

£00 

196 

133

135 

48 

84 

114 

213

Dec.

£13 

213 

213 

62

247

215 

£84 

249 

£28 

217

121

171 

418 

374 

£70

247 

232 

96 

69 

154

226 

221 

221 

223 

164

350

319 

319 

340 

340 

401

Jan.

658 

401 

306 

277 

258

256 

£54 

£30 

240 

238

234 

232 

£32 

230 

230

£28 

228 

230 

263 

251

249 

284 

£70 

254 

247

245 

£45 

243 

£40 

240 

238

Feb.

238 

243 

268 

544 

428

743 

693 

461 

404 

1,330

1,170 

497 

401 

348 

332

335 

324

314 

304 

327

319 

600 

480 

401 

350

329

316 

296

Month

Oeto 

Hove 

Dece

Ca

Janu. 

Febr 

Marc 

Apri 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1948 

Eiry

ter year 1948-49 .......................

Mar.

289 

874 

945 

788 

576

470 

432 

395 

542

1,480

1,570 

949 

644 

568 

845

1,050 

994 

1,190 

1,560 

842

654 

686 

570 

512 

467

426 

401 

376 

358 

340 

327

Apr.

316 

311 

301 

294 

289

284 

284 

280 

277 

275

265 

240 

228 

2£3 

£26

219 

228 

228

217 

209

209 

209 

' 206 

204 

207

209 

213 

245 

249 

234 

234

Second - 

foot-days

5,530 

5,699 

7,417

97,318

8,231 

12,795 

22,120 

7,379 

5,970 

1,567 

3,242 

4,188 

3,9£0

88,058

May

219 

234 

£13 

215 

211

202 

198 

211 

219 

219

£15 

202 

215 

226 

247

207 

191 

230 

230 

234

236 

215 

209 

209 

192

183 

155 

73 

53 

49 

58

Maximum

221 

223 

418

3,350

658 

1,330 

1,570 

316 

247 

96 

139 

169 

165

1,570

June

51 

50 

69 

77 

74

66 

60 

55 

55

57

57 

48 

44 

40 

42

44 

42 

49 

46 

46

51 

34 

24 

24 

24

40 

30 

78 

94 

96

July

94 

89 

89 

94 

96

90 

88 

92 

94 

96

104 

95 

92 

95 

90

88 

89 

88 

115 

113

116 

114 

124 

134 

139

118 

115 

117 

118 

118 

138

Aug.

148 

136 

128 

134 

131

160 

169 

137 

121

125

119 

125 

137 

137 

130

124 

129 

127 

133

146

140 

131 

132 

139

134

145 

136 

133 

137

138 

127

Sept.

124 

118 

119 

126 

156

127 

125 

144 

155

138

118 

146 

126 

124 

131

139

143 

165 

141 

126

120 

113 

115 

113 

133

127 

122 

130 

132 

124

Mini Mean *£«£

30 178 10,970 

48 190 11,300 

62 239 14,710

30 266 193,000

228 266 16,330 

238 457 25,380 

£89 714 43,870 

204 246 14,640 

49 193 11,840 

24 52.2 3,110 

88 105 6,430 

119 135 8,310 

113 131 7,780

24 24.1 174,700

Peak discharge (base, 3.500 see.-ft.).- Feb. 10 (10:30 p.m.) 4,240 sec.-ft.
418 RUSSIAN RIVER BASIN

Dry Creek near Cloverdale, Calif.

Location.- Water-stage 'recorder, lat. 38°45', 123°05', in sec. 4, T. 10 N., R. 11 W., 

buo reet downstream from Smith Creek and 5 miles southwest of Cloverdale: Altitude 

of gage, about 320 feet (from topographic map).

Drainage area.- 88.3 square miles.

Records available.- November 1941 to September 1949.

Extremes.- Maximum discharge during year, 4,170 second-feet Mar. 11 (gage height, 7.63 

reet); minimum, 0.1 second-foot Sept. 24-30.

1941-49: 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. 24-30, 1949.

Flood of December 1937 reached a-stage of about 18 feet (from floodmarks).

Remarks.- Records good. No storage or diversion above station. 

Revisions.- W 1041: Drainage area.

Rating tables, water year 1948-49 (gage height, in feet,

and discharge, in second-feet) 

(Sfiifting-control method used Oct. J. to Dec- 2, Sept. 24-30)

Oct. 1 to Mar. 2 Mar. 3 to Sept. 30

1.9 0.8 2.2 13 2.5 74 1.75 0.1 2.3 41 3.0 320 

2.0 1.4 2.3 28 2.6 108 1.8 .4 2.4 58 3.4 570 

2.1 4.9 2.4 48 2.7 150 1.9 2.9 2.5 80 *.4 1,280

Note . - Same as following table above 2' i 15' 2°.7 150 6l6 S^llO 

2.7 feet. z \2 27 z'.S 200

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

0.8 

.8 

1.2 

1.2 

1.2

1.1 

1.0 

1.0 

1.1 

1.1

1.2 

1.3 

1.2 

1.3 

1.3

1.3 

1.4 

1.3 

1.3 

1.4

1.6 

1.8 

1.8 

2.0 

2.4

2. 

2. 

2. 

2. 

2. 

3.

Nov.

6.7 

10 

9.0 

6.7 

4.4

3.4 

3.0 

3.0 

2.7 

2.7

2.7 

2.7 

2.7 

3.0 

5.4

7.4 

10 

6.7 

7.4 

8.2

6.7 

6.0 

5.4 

5.4 

5.4

5.4 

4.9 

4.9 

4.9 

4.9

Dec.

5.4 

5.4 

10 

10 

137

48 

53 

53 

28 

20

16

26 

102 

116 

64

51 

56 

39

31 

26

21 

18 

17 

16 

109

7201 

566 

257 

180 

165 

175

Jan.

230 

180 

116 

91 

74

64 

58 

51 

43 

43

59 

50 

31 

29 

26

23 

21 

21 

85 

81

77 

137 

121 

91 71*

61 

56 

53 

51 

45 

45

Feb.

41 

39 

56 

205 

219

578 

605

338 

236 

324

598 

338 

342 

180 

150

129 

116 

101 

94 

125

116 

476

370 

479 

332

290 

248 

190

Month

Goto 

Hove 

Dece

Ca

janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-4~9 ......................

Mar.

210 

969 

1,460 

1,420 

1,220

969 

696 

521 

745 

2,420

3,050 

1,640 

1,000 

794 

885

941 

1,010 

1,570 

1,700 

1,060

780 

759 

605 

482 

404

344 

290 

254 

218 

190 

170

Apr.

150 

138 

122 

107 

104

95 

89 

80 

78 

71

67 

62 

60 

56 

56

55 

51 

51 

48

46

44 

43 

40 

40 

38

36 

35 

38 

35 

34

Secondfoot-days

49.1 

161.7 

3,140.8

40,055.2

2,184 

7,215 

28,776 

1,969 

682 

204.9 

70.6 

31.6 

13.3

44,498.0

May

32 

34 

31 

29 

28

26 

24 

27 

28 

26

23 

23 

22 

23 

24

22 

21 

21 

22

21

20 

20 

18 

16 

16

15 

14 

14 

14 

14 

14

Maximum

3.4 

10 

720

1,580

230 

605 

3,050 

150 

34 

14 

3.6 

2.3 

1.2

3,050

June

14 

13 

12 

10 

9.4

9.4 

9.4 

8.7 

8.0 

6.8

6.8 

6.3 

6.3 

5.8 

5.8

5.8 

5.3 

5.8 

5.8 

5.8

5.8 

5.3 

4.8 

.8 

.4

.0 

.0 

.0 

.0 

3.6

July

3.6 

3.6 

3.6 

3.6 

3.6

3.2 

3.2 

2.9 

2.6 

2.6

2.3 

2.0 

2.0 

2.0 

2.0

2.0 

2.0 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.7

1.7 

1.7 

1.7 

1.7 

1.4 

2.0

Aug.

2.3 

2.0 

1.7 

1.4 

1.4

1.7 

1.7 

1.7 

1.4 

1.4

1.4 

1.4 

1.2 

1.2 

.9

.9 

.9 

- .7 

.7 

.7

.7 

.6 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4 

.4

 Sept.

0.3 

.3 

.4 

.4 

.6

.7 

.6 

.6 

.7 

.7

.9 

1.2 

.9 

.7 

.7

.6 

.6 

.4 

.4 

.3

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1

.1 

.1

Minimum Mean ^S"^"

0.8 1.58 97 

2.7 5.39 , 321 

5.4 101 6,230

.6 109 79,450

21 70.5 4,330 

39 258 14,310 

170 928 57,080 

34 65.6 3,910 

14 22.0 1,350 

3.6 6.83 406 

1.4 2.28 140 

.4 1.02 63 

.1 .44 26

.1 122 88,260

Peak discharge (base. 3,050 see.-ft.).- Bar. 11 (8:30 a.m.) 4,170 sec.-ft.
RUSSIAN RIVER BASIN 419

Laguna de Santa Rosa near Qraton, Calif.

Location.- Water-stage recorder, lat. 38°27', long. 122°50', in sec. 14, T. 7 N., R. 9 W.,

 i'n Molinos land grant, 0.2 mile dswnstream 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 1949.

Extremes.- Maximum contents during year, 13,900 acre-feet Mar. 11 (elevatitri, 60.0 feet);

 contents, less than 500 acre-feet Oct. 1-31, June 24 to Sept. 30.

1940-49: 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 contents at 12 p.m.

Contents, In acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

26

26

27

28

29

30

31

Oct. Nov.

1,120

-

Dec.

_

-

_

_

-

_

_

_

-

_

_

_

_

-

_

.

«

_

-

_

_

-

-

-

.

- 

1,420

1,360

1,300

1,240

Jan.

1,360

1,180

1,120

1,060

1,000

1,000

950

'900

900

850

850

850

800

800

800

800

800

750

1,120

950

1,000

1,480

1,240

1,240

1,180

1,120

1,060

1,000

1,000

950

950

Feb.

900

900

950

1,360

1,240

2,320

2,320

2,000

1,760

1,680

2,000

1,840

1,680

1,540

1,480

1,480

1,420

1,360

1,360

1,480

1,420

1,680

1,540

1,840

1,760

1,760

1,680

1,600

-

-

-

Mar.

1,600

2,700

3,200

3,000

3,640

2,900

2,160

1,840

2,600

6,680

13,900

9,220

5,020

3,100

2,500

3,400

2,700

2,180

3,640

2,900

2,240

2,320

2,240

2,000

1,760

1,680

1,600

1,540

1,480

1,480

1,360

Apr.

1,360

1,360

1,360

1,300

1,300

1,240

1,240

1,240

1,180

1,180

1,120

1,120

1,120

1,060

1,120

1,060

1,060

1,060

1,060

1,000

1,000

1,000

950

950

950

900

900

900

900

850

-

Hay

850

850

850

850

850

800

800

850

800

800

300

800

800

800

750

750

750

750

750

750

750

750

750

750

750

750

700

700

700

700

700

Juno

700

700

650

650

650

650

650

700

350

600

600

600

600

600

600

600

600

600

550

550

550

500

500

-

-

_

-

..

-

.

-

July Aug. Sept.

Note.- No record Nov. 1-28, Hov. 30 to Dec. 27. Contents less than 500 acre-feet Oct. 1-31,

June 24 to Sept. 30.

Monthly elevation and contents, water year October 1948 to September 1949

Date

Oct. 31......... .........

Dec. 31... ...............

Calendar year 1948....

Jan. 31..................

Sept. 30. .................

Water year 1948-49....

Elevation 

(feet)t

51.4

-

52 0

_

-

Contents 

(acre-feet)

1,240

-

.

-

Change in contents 

during month 

(aore-foet)

.

+240

_

-

t Elevation at 12 p.m.
420

EEL RIVER BASIN

Lake Pillsbury at Hullville, Calif.

Location.- Staff gage, lat. 39°24', long. 122°57', on line between sees. 14 and 23, T. 18 

N.,'R. 10 W., at Soott Dam on Eel River, at Hullville, 0.3 mile downstream from Rice 

Pork. Datum of gage is at mean sea level.

Drainage area.- square miles.

on,

Records available.- October 1922 to September 194fi (gage heights only prior to October

J.S2S) .

Extremes.- Maximum contents observed during year, 94,200 acre-feet Apr. 12, May 2, 11, 

12, is (elevation, 1,910.2 feet); minimum observed, 49,500 acre-feet Dec. 3 (elevatl 

1,887.5 feet).

1922-49: 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 

IU2T7 Capacity, 93,700 acre-feet between elevations 1,822.4 feet (sill of outlet gate) 

and 1,910.0 feet (top of spillway gates) above mean sea level. Water is released down 

Eel River to Van Arsdale Reservoir, from which it is diverted through tunnel to Potter 

Vailey powerhouse; part is then used for irrigation and remainder flows into East Pork 

Russian River. Records, based on gage readings usually made at 3 p.m., show contents 

available for release.

Cooperation.- Sage-height record, furnished by Pacific Gas & Electric Co., obtained in 

"" connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

28

27

28

29

30

31

Oct..

66,400

-

66,200

-

-

_ '

_

-

_

-

63,000

62,600

62, .200

61,900

61,500

_

_

61,000

60,400

59,900

59,500

59,200

-

-

58,600

58,400

58,100

57,600

57,200

-

657,000

Nov.

57,000

57,400

57,400

57,400

57,200

_

_

56,200

55,800

55,500

55,100

54,800

-

-

53,800

53^400

53,400

53,100

52,900

-

_

52,100

51,700

51,400

51,300

51,100

_

-

50,800

50,400

-

Dec.

50,100

49,800

49,500

_

-

51,100

51,300

52,200

53,200

52,400

_

-

54,100

55,000

55,100

55,300

55,300

-

55,600

55,500

55,300

55,100

55,000

54,800

551,100

55,100

55,000

55,000

55,100

55,100

Jan.

56,000

56,900

57,600

57,700

58,100

58,100

58,300

_

_

58,300

58,300

58,400

58,400

58,400

-

_

58,100

57,900

57,700

57,600

57,400

_

-

57,000

56,900

56,700

56,500

56,300

_

-

55,600

Feb.

55,500

55,300

55,100

55,000

-

_

55,000

54,800

54,800

54,800

58,400

_

59,300

60,100

60,400

61,100

61,700

.

-

65,000

69,100

73,900)

74,100

73,900

_

«

73,500

*.

-

-

Mar.

73,500

73,900

74,500

74,300

_

73,500

73,300

73,300

74,100

75,100

_

73,900

74,700

75,300

75,900

76,700

_

-

75,100

74,900

74, 900

75,500

76,100

_

79,000

79,900

81,000

82,200

Apr.

83,800

_

87,500

88,700

89,800

91,400

92,600

_

-

93,700

94,1200

93,700

93,300.

93,300

_

.

93,300

93,300

93,500

93,700

93,700

_

»

93,300

93,300

93,300

93,500

93,700

394,000

-

Hay

_

94,200

94,000

93,700

93; 700

93,700

_

94,000

94,000

94,200

94,200

94,200

_

-

94,000

93,700

93,700

93,700

93,700

.

_

93,500

93,500

93,500

93,500

93,500

_

-

93,700

June

94,000

94,000

94,000

_

-

94,000

94,000

94,000

»

94,000

_

-

93,700

93,700

.93,700

93,700

93,500

_

93,300

93,300

93,300

93,300

93,000

-

_

93,000

92,800

92,600

92,300 '-

July

92,100

-

.

91,200

90,700

90,500

90,300

_

-

89,600

89,300

39,100

88,700

88,400

_

_

87,500

87,300

86,900

86,600

86,200

-

_

85,100

84,900

84,400

84,200

83,800

-

683.100

Aug.

82,900

82,500

82,200

81,800

81,600

_

_

_

_

-

.

_ 

_

_

78,000

77,600

77,200

76,900

76,500

-

...

75,500

75,100

74,700

74,300

73,900

.

_

73,100

72,700

72,200

Sept.

71,800

71,600

-

_

70,500

70,100

69,900

69,500

69,300

_

68,100

67,900

67,500

67,100

66,800

_

_

65,800

65,400

65,000

64,700

64,300

.

-

 _

_

-

_

eei, 9QO

-

e Contents Interpolated.

Monthly elevation and contents, water year October 1948 to September 1949

Hate

Dee. 31....................

July 31....................

Sept. 30....................

Elevation 

(feet)

1,890.9

.

1

QAA 7

Contents 

(acre-feet)

I 55,100

_

93 700

QA VAA

61,900

Change In contents 

during month 

(acre-feet)

+4, 700

+11,700

+8 700

-10,300
EEL RIVER BASIN 421

Eel River -at Hullville, Calif.

Location.- Water-stage recorder, lat. 39°24', long, 122°S8', in NE^ sec. 22, T. 18 N., R.

" iu 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 1949.

Average discharge.- 26 years (1923-49), 459 second-feet.

Extremes . - Maximum discharge during year, 5,780 second-feet Mar. 19 (gage height, 10.40 

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 Feb. 21, 22.

1922-49: 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. 

F-iow regulated by Lake Pillsbury (see preceding page). No diversion above station.

gopperation. - Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtalned in connection with a Federal Power Commission project.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 3 Mar. 4 to Sept. 30

2.6 39 4.0 538 6.5 1,600 9.5 4,540 2.9 70 4.2 363 

2.8 61 4.4 478 7.0 1,980 10.0 5,200 3.1 100 4.8 580 

3.0 89 4.7 594 7.5 2,400 11.0 6,700 3.4 158 5.4 860 

3.2 124 5.0 716 8.0 2,860 3.8 252 6.0 1,250 

3.4 166 5.5 950 8.5 3,370 

3.7 246 6.0 1,250 9.0 3,930 . "°te -" Same. as preceding 

table above 6.0 feet.

Discharge, In second-feet, water year October 1948- to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

204 

204 

204 

202 

199

202 

202 

202 

199

199

199 

199 

199 

199 

f!52

a35 

a!02 

196 

213 

213

213 

f!42 

a 58 

a56 

f!72

210 

210 

210 

f!45 

a58 

a58

Hov.

f!34 

f!22 

144 

153 

181

186 

191 

204 

210 

207

204 

196 

181 

191 

194

196

186 

196 

184 

196

196 

186 

171 

f!82 

a87

f!06 

a50 

a78

207

Dec.

210 

202 

f!22 

a 45 

a 45

f!38 

f!06 

140 

151 

146

a42 

a42 

a69 

a!06 

128

146 

f98 

a42 

a42

181

176 

178 

181 

fl!7 

f97

al!7 

flSl 

171 

155 

146 

126

Jan.

f89 

a 60 

al!4 

f!24 

138

159 

142 

134 

136 

153

155 168' 

166 

174 

174

176 

181 

181 

174 

181

184 

178 

178 

188 

196

184 

186 

188 

188 

188 

186

Feb.

186

188 

191 

188 

181

178 

178 

178 

157 

fl!7

fl!5 

140 

140 

f96 

f!16

391 

a72 

a74 

a85 

a72

a42 

a 42 

1,310 

1,610 

1,330

1,120 

992

865

Month

Goto 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Aprl

Mav

June 

July 

Augu 

Sept

Ha

rcber. ...................................

Lendar year 1948 

ttry

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

ter year 1948-49 .......................

Mar.

787 

1,210 

1,920 

1,490

1,140

920 

770 

656 

642 

1,560

2,670 

2,290 

1,680 

1,410 

2,030

2,840 

3,600 

4,920 

5,230 

3,800

2,620 

1,980 

1,260 

860 

560

420 

536 

490 

295

f!41 

378

Apr.

a70

a78 

a83 

a87 

a90

a 95 

a 97 

f440 

735 

745

765 

1,030 

1,280 

1,140 

920

926 

926 

825 

674 

556

564 

629 

706 

696 

604

379 

297 

300 

305 

308

Secondfoot-days

5,308 

5,118 

3,816

154,950

5,023 

10,054 

50,805 

16,350 

8,763 

2,309 

4,491 

5,005 

4,758

121,800

May

319 

412 

500 

339 

283

286 

289 

294 

294

300

330 

395 

385 

392 

376

366 

357 

354 

348 

283

247 

222 

257 

265 

225

215 f!34- 

a74 

a74 

374 

a74

Maximum

213 

210 

210

6,050

196 

1,610 

5,230 

1,280 

500 

141 

165 

167 

167

5,230

June

a74

374 

874 

a74 

a74

a74 

' a74 

a74 

a74 

a74

a74 

a74 

a76 

a78 

a78

a78 

a78 

a78 

a78 

aS8

a60 

a60 

a60 

a 60 

a 60

a60 

a 66 

f!03 

139 

141

July

135 

135 

135 

133 

133

131 

128 

126 

126 

128

135

135 

135 

135 

135

133 

131 

143 

165 

162

158 

158 

158 

158 

162

165 165' 

162 

162 

162 

162

Aug.

162 

162 

162 

162 

162

162 

160 

158 

158 

158

158 

158 

158 

158 

162

162 

162 

162 

162 

162

162 

162 

162 

167 

167

165 

162 

162 

162 

162 

162

Minimum Mean

58 171 

50 171 

42 123

40 423

60 162 

42 359 

78 1,639 

70 545 

74 283 

\ 74 77.0 

126 145 

158 161 

137 159

42 334

Sept.

162 

162 

162 

162 

160

160 

160 

160 

154 

137

143 

171 

165 

162 

162

165 

167 

167 

167 

167

167 

162 

154 

152 

152

152

152 

152 

150 

150 "

Runoff In 

acre-feet

10,530 

10,150 

7,570

307,300

9,960 

19,940 

100,800 

32,430 

17,380 

4,580 

8,910 

9,930 

9,440

241,600

a Ho gage-height record; discharge computed on basis of 

f Discharge computed from partly estimated gage height.

047809 O - 51 - 28

record of flow through needle valve.
422 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 1949. November 1909 to September 1922

(comDined 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.- 26 years (1922-26, 1927-49), 522 second-feet, combined flow of Eel 

' Kiver at Van Arsdale Dam and Potter Valley powerhouse tailrace.

Extremes.- Maximum discharge during year, 6,470 second-feet Mar. 19 (gage height, 13.33 

feet); .minimum, 0.4 second-foot Sept. 11.

1909-49: 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 except those for period of no gage-height record, which are fair. 

Water is diverted from Van Arsdale Reservoir through tunnel to Potter Valley powerhouse 

(see p. 424), after which part is used for irrigation and remainder flows into East 

Fork Russian River. Records given herein show only flow passing dam down Eel River.

Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1.5 

1.3 

2.2 

2.5 

3.0

3.5 

3.0 

2.8 

2.6 

2.6

2.8 

2.6 

2.3 

2.3 

2.0

1.8 

1.3 

1.9 

2.2 

2.6

3.5 

3.7 

4.4 

5.1 

4.6

3.9 

3.7 

3.7 

4.1 

3.7 

3.5

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mnv

June 

July 

Augu 

Sept

Wa

Nov.

5.8 a.i

5.1 

a5

Dec.

4.8 

5.5 

6.1 

6.4 

70

3.5 

15 

6.4 

6.1 

4.4

7.9 

18 

16 

6.6 

3.5

3.7 

3.3 

4.4 

9.0 

7.8

8.1 

7.8 

7.1 

6.8 

2.2

27 

25 

9.0 

9.4 

17 

24

Jan.

150 

32 

8.1 

7.4 

6.8

6.8 

12 

22 

7.4 

5.5

4.4 

5.8 

6.1 

6.8 

7.1

6.1 

5.8 

5.1 

6.8 

5.5

5.8 

6.8 

5.5 

4.6 

6.4

7.4 

6.8 

6.8 

7.1 

7.4 

7.4

Feb.

7.4 

7.1 

7.1 

17

31

29 

37 

28 

27 

182

517 

191 

89 

48 

18

20 

16 

14 

39 

110

94 

726 

1,510 

1,790 

1,410

1,170 

1,010 

857

Month

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

747 

1,150 

1,99"0 

1,590 

1,210

992 

808 

660 

625 

1,560

2,840 

2,550 

1,860 

1,520 

2,070

2,930 

3,710 

5,220 

5,970 

4,340

2,930 

2,220 

1,510 

1,030 

736

485 

582 

564 

358 

161 

80

Apr.

32 

36 

25 

19 

19

17 

17 

193 

600 

609

618 

755 

1,020 

938 

730

725 

725 

654 

526 

388

388 

425 

517 

505 

433

251 

124 

126 

126 

126

Secondfoot -days

90.7 

154.0 

351.8

118,022.8

389.5 

10,001.6 

54,998 

11,667 

2,880.3 

173.1 

145.6 

88.5 

86.7

81,026.8

May

145 

180 

296 

185 

82

86 

84 

82 

79 

80

98 

170 

161 

167 

159

139 

135 

159 

137 

96

27 

20 

7.0 

44 

12

8.4 

7.4 

6.1 

8.4 

10 

10

Maximum

5.1 

70

6,160

150 

1,790 

5,970 

1,020 

296 

10 

5.6 

3.7 

5.2

5,970 

June

9.6 

6.6 

7.0 

7.0 

10

8.4 

8'. 4 

8.4 

6.6 

6.6

6.1 

5.6 

5.6 

6.6 

6.6

6.1 

5.6 

5.6 

5.2 

4.8

4.0 

4.0 

4.4 

4.4 

4.8

4.0 

3.3 

2.4 

2.1 

3.3

Minimum

July

1.3 

2.2

1.3

4.4 

7.1 

80 

17 

6.1 

2.1 

4.0 

1.9 

1.0

1.0

4.4 

5.2 

5.6 

5.6 

5.6

5.6 

5.6 

4.8 

4.4 

4.4

4.8 

5.2 

4.4 

4.4 

4.4

5.2 

5.6 

5.6

4.0 

4.0

4.0 

4.0 

4.0 

4.0 

4.0

4.0 

4.4 

4.4 

4.4 

4.4 

5.2

Aug.

3.7 

3.7 

3.7 

3.7 

3.7

3.7 

3.7 

3.7 

3.3 

2.4

2.1 

1.9 

2.1 

2.4 

2.4

2.7 

3.0 

3.0 

3.0 

3.0

2.7 

2.7 

2.4 

2.1 

2.4

3.0 

3.0 

2.7 

2.4 

2.1 

2.1

Mean

2.93 

5.13 

11.3

322

12.6 

357 

1,774 

389 

92.9 

5.77 

4.70 

2.85 

2.89

222

Sept.

1.9 

1.9 

1.7 

2.1 

2.?

2.7 

2.4 

1.9 

1.9 

1.1

1.0 

1.7 

1.7 

1.7 

1.7

1.9 

2.1 

2.4 

3.0 

2.7

3.7

4.0 

4.4 

4.8 

4.8

5.2 

5.2 

4.8 

4.8 

4.8

Runoff In 

acre-feet

180 

305 

698

234,100

773 

19,840 

109,100 

23,140 

5,710 

343 

289 

176 

172 .

160,700

a No gage-height record; discharge Interpolated.
EEL RIVER BASIN 423

Eel River at Scotia, Calif.

Location.- Water-stage recorder, lat. 40°29', long. 124°06', In sec. 7,.T. 1 N., R. IE., 

at bridge on U. £. 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 1949.

Average discharge.- 36 years (1911-14, 1916-49), 6,216 second-feet.

Extremes.- Maximum discharge during year, 140,000 second-feet Mar. 18 (gage height, 35.4 

feet); minimum, 42 second-feet Sept. 27-30.

1910-15, 1916-49: 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. 420) and by 

aiversion through Potter Valley powerhouse (see p. 424).

Revisions (water years).- W 931: 1938.

Rating tables, water year 1948-49 (gage height, in feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 18 Mar. 19 to Sept. 30

9.4 226 10.9 1,540 17.0 18,800 9.1 38 10.8 1,160 17.0 17,700 

9.6 320 11.5 2,540 20.0 32,500 9.5 214 11.5 2,190 20.0 30,900 

9.9 500 12.4 4,380 24.0 54,500 9.9 411 12.3' 3,710 24.0 S2.QOO 

10.3 800 14.0 8,460 28.5 82,500 10.2 589 13.7 7,020 28.0 79,000 

10.5 990 15.6 13,600 33.0 118,000 10.5 830 15.2 11,20* 32.0 109,000

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

286 

267 

375 

570 

608

872 

960 

836 

638 

S28

507 

480 

448 

417 

393

375 

370 

342 

326 

315

310 

296 

291 

296

301

296 

286 

272 

267 

267 

267

Nov.

485 

2,900 

5,580 

4,360 

2,900

1,830 

1,300 

1,010 

863 

760

682 

622 

578 

549 

585

784 

1,820 

2,810 

2,320 

2,840

1,330 

2,310 

1,790 

1,460 

1,240

1,110 

990 

920 

890 

881

Dec.

854 

890 

1,740 

2,360 

7,450

20,000 

13,400 

23,400 

13,500 

8,600

7,170 

8,120 

20,600 

21,000 

14,600

10,300 

8,040 

6,630 

5,560 

4,820

4,360 

4,030 

3,580 

3,200 

4,120

7,640 

6,940 

6,960 

8,060 

14,400 

11,700

Jan.

14,600 

22,200 

14,700 

10,400 

8,150

6,810 

6,160 

5,780 

5,380 

4,680

3,980 

3,650 

3,420 

3,280 

3,040

2,770 

2,540 

2,380 

2,320 

2,320

2,340 

2,450 

2,520 

2,380 

2,160

1,990 

1,960 

1,980 

1,950 

1,880 

1,850

Feb.

1,830 

1,830 

1,990 

2,810 

6,680

8,660 

17,200 

13,500 

10,400 

12,100

47,200 

28,800 

16,800 

12,000 

9,740

9,740 

10,400 

10,100 

9,770 

9,740

12,000 

23,100 

47,800 

27,400 

20,400

16,400 

14,500 

12,400

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Hare 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

nber. ...................................

lendar year 194£

ter year 1948-49 .......................

Mar.

10,900 

12,500 

19,100 

21,500 

17,200

14,100 

12,000 

10,700 

11,100 

17,700

21,200 

25,200 

20,300 

16,400 

23,800

39,200 

48,000 

115,000 

108,000 

72,800

43,300 

32,800 

28,500 

22,500 

18,000

14,600 

12,400 

11,500 

10,400 

9,140 

8,270

Apr.

7 

7 

6 

6 

6

6 

6 

6 

6 

6

6 

7 

7 

6 

6

6 

6 

6 

5 

5

4 

4 

4 

4 

4

3 

3 

3 

3 

3

Secondfoot -days

13,062 

48,499 

274,024

2,471,619

152,020 

415,290 

848,310 

170,930 

70,580 

19,734 

7,984 

3,935 

1,970

2,026,338

490 

020 

680 

400 

090

090 

140 

240 

040 

450

890 

280 

150 

890 

530

360 

430 

360 

970 

350

880 

940 

780 

580 

330

950 

650 

450 

290 

230

May

2,950 

3,450 

3,890 

3,710 

3,210

2,830 

2,580 

2,530 

2,690 

2,640

2,550 

2,690 

2,670 

2,690 

2,660

2,480 

2729O 

2,140 

2,000 

1,980

1,960 

1,880 

1,720 

1,540 

1,370

1,290 

1,280 

1,290 

1,220 

1,190 

1,210

Maximum

960 

5,580 

23,400

91,600

22,200 

47,800 

115,000 

7,490 

3,890 

1,170 

374 

168 

80

115,000

June

1,170 

1,140 

1,140 

1,020 

963

920 

870 

821 

776 

740

708 

676 

646 

624 

603

570 

545 

526 

502 

491

473 

461 

456 

456 

445

428 

411 

395 

379 

379

July

374 

363 

358 

353 

348

333 

328 

323 

318 

308

298 

294 

264 

279 

274

260 

246 

228 

209 

205

205 

205 

196 

186 

182

182 

177 

168 

168 

168 

164

Minimum

267 

485 

854

137

1,850 

1,830 

8,270 

3,230 

1,190 

379 

164 

64 

42

42

Aug.

159 

168 

168 

168 

164

164 

159 

155 

164 

168

155 

142 

124 

120 

120

120 

120 

120 

120 

115

115 

111 

102 

98 

93

93 

89 

89 

84 

84 

84

Sept.

80 

76 

76 

72 

72

72 

72 

72 

72 

76

76 

76 

76 

76 

76

76 

72 

67 

63 

67

67 

63 

59 

51 

51

46 

42 

42 

42 

42

 .-_ Runoff In 

m acre-feet

421 25,910 

1,617 96,200 

ff,859 543,500

6,753 4,903,000

4,904 301,500 

14,830 823,700 

27j360 1,683,000 

5,698 339,000 

2,277 140,000 

658 39,140 

258 15,840 

127 7,800 

65.7 3,910

5,552 4,020,000

Peak discharge (base. 66,000 sec.-ft.).- Mar. 18 (5 p.m.) 140,000 sec.-ft.
424 EEL RIVER BASIN

Potter Valley powerhouse tailrace near Potter Valley, Calif.

Location,- Water-stage recorder and electrical output meters, lat. 39°21', long. 123°07',

 in NW£ sec. 6, T. 17 N., R. 11 W. , at powerhouse of Pacific Gas & Electric Co., 3 mile.s 

northwest of town of Potter Valley, altitude of gage, about 1,000 feet (from topogrphic map).

Records available.- October 1922 to September 1949. 

Average discharge.- 27 years, 190 second-feet.

Extremes.- Maximum daily discharge during-year, 225 second-feet Oct. 22, 29; minimum daily, 

34 second-feet Oct. 23, 24, 31.

1922-49: 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'Pork Russian River. Water for irrigation diverted from 

tailrace is included in figures of discharge.

Cooperation.- Record .of daily discharge Oct. 16-18, 22-25, Get 29 to Nov. 1, Nov 25-29,

 l)e'c. 3-b, 10-12, 17-20, 24-27, Apr. 15 to May 1,-May 26 to Sept. 30, 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 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

216 

215 

215 

215 

202

215 

213 

214 

214 

214

214 

214 

214 

215

193

79 

74 

149 

218 

218

218 

225 34 

54

124

217 

217 

217 

225 

59 

34

Nov.

166 

216 

218 

215 

216

209 

207 

217 

219 

219

219 

215 

189 

200 

221

222 

221 

220 

221 

221

221 

220 

206 

209 

128

128 

41 

80 

137 

224

Dec.

224 

222 

219 

38 

132

198 

215 

214 

213 

205

103 

111 

215 

215 

214

214 

227

71 

50 

147

215 

213 

215 

192 

97

95 

119 

217 

217 

218 

216

Jan.

216 

214 

215 

216 

214

218 

219 

198 

220 

220

220 

219 

219 

219 

219

219 

219 

220 

219 

219

219 

219 

218 

219 

219

216 

220 

219 

219 

218 

218

Feb.

220 

220 

224 

221 

218

219 

220 

221 

220 

219

218 

220 

221 

219 

220

220 

219 

218 

215 

214

219 

218 

215 

216 

218

215 

216 

216

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl

June 

July 

Augu 

Sept

Wa

ber........................ .............

lendar year 1948

ter year 1948-49 .......................

Mar.

216 

216 

216 

216 

215

207 

219 

219 

216 

215

215 

215 

215 

215 

216

215 

21& 

214 

214 

215

215 

215 

215 

215 

214

214 

215 

216 

218 

218 

215

Apr.

216 

218

218 

216 

216

216 

218 

219 

219 218

215 

213 

216 

215 

219

219 

219 

219 

219 

219

219 

219 

219 

219 

219

219 

209 

219 

219 

219

Secondfoot -days

5,525 

5,845 

5,461

71,129

6,746 

6,119 

6,674 

6,527 

6,155 

2,561 

4,403 

4,981 

4,766

65,763

May

195 

222 

221 

220 

218

219 

218 

218 

216 

216

215 

216 

218 

216 

216

216 

217 

218 

219 

216

218 

218 

218 

220 

220

209 

178 

84 

82 

88 

90

Maximum

225 

224 

224

227

220 

224 

219 

219 

222 

128 

161 

161 

172

225

June ,

104 

97 

82 

82 

90

96 

96 

96 

96 

96

96 

87 

82 

82 

82

82 

82 

82 

82 

82

67 

54 

54 

54 

54

66 

54 

128 

128 

128

Minimum

July

34 

41 

38

34

198 

214 

207 

209 

82 

54 

119 

151 

120

34

129 

132 

119 

129 

129

129 

129 

129 

129 

119

129 

129 

129 

129 

129

129 

129 

134 

161

161

161 

161 

161 

161 

161

161 

161 

161 

161 

161 

161

Aug.

161

161 

161 

161 

161

161 

161 

161 

161 

161

161 

161 

161 

151 

161

161 

161 

161 

161 

161

161 

161 

161 

161 

161

161 

161 

161 

161 

161 

161

Mean

178 

195 

176

194

218 

219 

215 

218 

199 

85.4 

142 

161 

159

180

Sept.

161 

161 

161 

148 

161

161 

161 

161 

172 

161

120 

172 

161 

161 

161

161 

161 

161 

161 

158

151 

161 

155 

155 

155

160 

161 

161 

161 

161

Runoff In 

acre-feet

10,960 

11,590 

10,830

141,100

13,380 

12,140 

13,240 

12,950 

12,210 

5,080 

8,730 

9,880 

9,450

130,400
EEL RIVER BASIN 485

South Fork Eel River near Branscomb, Calif.

Location.- Water-stage recorder, lat. 39°43'30", long. 123°38'45", 3 miles downstream from 

Keawood Creek and 6 miles north of Branscomb.

Records available.- October 1946 to September 1949.

Extremes.- Maximum discharge during year, 3,230 second-feet Mar. 18 (gage height, 7.48 

feet;, from rating curve extended above 1,500 second-feet by logarithmic plotting; 

minimum, 1.4 second-feet, Sept. 24.

1946-49: 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, 

that of Sept. -24, 1949.

Remarks.- Records good. No regulation or diversion.

Rating tables, water year 1948-49 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Mar. 18 Mar. 19 to Sept. 30

1.1 7.5 2.0 126 4.0 880 0.84 1.4 1.5 .18 2.2 169 

1.2 12 2.2 172 4.5 1,130 .9 2.4 1.4 28 2.6 285 

1.5 20 2.5 257 5.0 1,430 1.0 4.1 1.6 53 5.0 430 

1.4 31 2.8 360 6.0 2,070 1.1 7.3 1.8 83 

1.6 56 3.2 510 6.5 2,440 1.2 12 2.0 121

Note.- Same as preceding table above 3.0 

feeTI 

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

5 

4

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

7.5 

7.5 

26 

59 

50

29 

20 

17 

15 

13

14 

12 

11 

11 

10

10 

9.7 

9.2 

8.7 

8.7

8.7 

8.7 

9.2 

10 

9.7

9.2 

8.7 

8.3 

8.3 

7.9 

9.2

Nov. 

249 

136 

183 

93 

66

52 

43 

37 

32 

29

27 

24 

21 

24 

58

136 

130 

90 

127 

112

93 

78 

65 

58 

51

46 

41 

41 

42 

37

Dec.

55 

39

114 

85 

1,040

505 

996 

782 

442 

314

257 

724 

880 

726 

510

381 

297 

235 

193 

165

148 

130 

118 

106 

116

124 

150 

139 

253- 

280 

362

Jan.

696 

600 

430 

332 

264

215 

185 

160 

141 

126

112 

106 

99 

92 

85

78 

73 

70 

74 

68

68 

70 

64 

60 

58

58 

56 

56 

55 

55 

55

Feb.

53 

53 

56 

215 

342

574 

765 

482 

370 

1,020

1,540 

805 

518 

381 

328

300 

280 

264 

' 254 

305

300 

948 

920 

649 

470

378 

314 

257

Month

Octo 

Hove

Decs

Ca

Janu 

Febr 

Marc 

Aprl

MAV

June 

July 

Augu 

Sept

Ha

mber. ................... ...............

lendar year 1948

uax*v.

Mar.

229 

308 

454 

462 

388

322 

270 

229 

232 

242

294 

392 

332 

300 

462

600 

964 

2,390 

1,990 

1,260

830 

712 

590 

486 

394

324 

273 

231 

203 

175 

154

Apr.

139 

123 

111 

101 

92

87 

80 

75 

70 

66

63 

60 

57 

54 

S3

52

49 

48 

45 

44

43 

40 

39 

38 

35

35 

34 

38 

35 

33

Secondfoot -days

446.2 

2,221 

 10,646

60,889.3

4,661 

13,141 

16,492 

1,839 

338 

381.5 

197.0 

124.1 

71.7

51,038.5

Peak dlschsrge (base. 2,000 sec. -ft.).- Dec. 5 (10:30

May

33 

64 

49 

39 

34

32 

30 

32 

32 

29

28 

26 

25

25 

25

25 

24 

23 

22 

24

26 

23

21 

20 

19

18 

18 

18 

18 

18 

18

Maximum

59 

249

1,040

2,770

696 

1,5.40 

2,390 

139 

64 

20 

9.0 

5.9 

3.0

2,390

June

20 

18 

16 

16 

15

14 

14 

14 

13 

13

13 

12 

12 

12 

11

11 

10 

10 

10 

11

10 

10 

10 

9.5 

9.5

9.5 

9.5 

9.5 

9.5 

9.5

July

9.0 

8.5 

8.1 

8.1 

8.1

8.1 

7.7 

7.7 

7.3 

7.3

6.9 

6.5 

6.2 

6.2 

6.2

5.9 

5.6 

5.6 

5.6 

5.6

5.6 

-S-.3 

5.3 

5.3 

5.3

5.3 

5.0 

5.0 

4.7 

4.7 

5.3

Aug.'

5 

5 

5 

5 

4

4

4 

4 

4 

4

4 

4 

4 

4 

4

3 

3 

5 

3 

3

3 

3 

3 

3 

3

3 

3 

3 

3 

2 

2

Minimum Mean

7.5 14.4 

21 74.0 

35 343

4.1 166

55 150 

53 469 

154 552 

35 61.3 

18 27.0 

9.5 12.0 

4.7 6.35 

2.8 4.00 

1.4 2.39

1.4 140

a.m.) 2,460 sec. -ft.; Feb. 10 (9

.9 

.9 

.6

.0 

.7

.7 

.7

.7 

.7 

.4

.4 

.1 

.1 

.1 

.1

.8 

.8 

.6 

.6

.4

.4 

.2 

.4 

.4 

.4

.2* 

1 

1 

0 

8 

8

Sept.

2.6 

2.6 

2.6 

2.6 

2.6

2.8 

£.8 

3.0 

3.0 

3.0

3.0 

3.0 

2.8 

2.6 

2.6

2.6 

2.5 

2.4 

2.2

2.0

1.9 

1.8 

1.6 

1.4 

1.6

1.8 

1.9 

2.0 

2.2 

2.2

Runoff In 

acre-feet .

885

4,410 

21,120

120,800

9,240 

26,060 

32,710 

3,650 

1,660 

717 

391 

246 

142

101,200

p.m.)
426 EEL RIVER BASIN

South Fork Eel River near Miranda, Calif.

Location.- Water-stage recorder, lat. 40°12',long. 123°46', in NWi sec. 30, T. 3 S., R. 4

 E., at Sylvandale camp grounds on U. S. Highway 101, 0.9 mile upstream from Rooky Glen 

Creek, 6 miles south of Miranda, and 20 miles upstream from mouth.

Drainage area.- 547 square miles.

Records available.- May 1940 to September 1949.

Extremes.- Maximum discharge during year, 42,000 second-feet Mar. 18 (gage height, 20.60

 Feet); minimum, 9.5 second-feet Sept. 19, 20, 33.

1940-49: Maximum discharge, 73,200 second-feet Dec. 27, 1945 (gage height, 27.73 

feet), from rating curve extended above 30,000 second-feet by logarithmic plotting; 

minimum observed, 9 second-feet Oct. 17, 1944.

Remarks.- Records good. Flow slightly regulated by Benbow Dam and powerhouse. No 

diversion.

Discharge, In second-feet, water year October 1946 to September 1949

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.

56 

.157 

173 

192 

238

238 

262 

142 

122 

111

122 

118 

108 

100 

94

91 

86 

86 

83 

80

80 

78 

78 

88 

91

86 

78 

80 

78 

78 

76

Nov.

478 

1,410 

1,250 

990 

632

476 

400 

342 

305 

280

260. 

252 

238 

238 

336

535 

1,010 

772 

744

970

801 

657 

565 

495 

443

418 

376 

348 

354 

348

Dec.

332 

337 

582 

754 

6,160

4,700 

5,180 

6,920 

3,410 

2,440

1,940 

3,090 

6,310 

5,690 

3,920

2,930 

2,370 

1,950 

1,660 

1,470

1,340 

1,240 

1,140 

1,080 

1,670

2,230 

2,200 

2',070 

3,010 

3,960 

3,280

Month

Octo 

Nove

Dece

Ca

janu 

Febr 

Mare 

Apr! 

May.

June 

July 

Augu 

Sept

Ha

Jan.

6,000 

5,870 

3,940 

3,000 

2,430

2,040 

1,830 

1,670 

1,470 

1,340

1,250 

1,170 

1,110 

1,040 

982

928 

886 

854 

854 

854

854 

919 

902 

846 

798

774 

766 

750 

736 

729 

715

Feb.

701 

701 

736 

1,490 

3,180

4,530 

8,280 

4,610 

3,440 

6,110

14,600 

7,450 

4,860 

3,730 

3,200.

3,030 

2,810 

2,620 

2,490 

2,440

2,680 

8,680 

9,380 

6,060 

4,410

3,630 

3,180 

2,790

lendar year 1943

Bt......................................

ter year 1948-49 .......................

Mar.

2, -620 

3,380 

5,160 

5,390 

4,240

3,630 

3,150 

2,880 

3,530 

4,360

4,150 

5,090 

4,230 

3,710 

6,670

8,340 

12,700 

33,200 

26 , 600 

16,000

10,100 

7,850 

6,630 

5,380 

4,350

3,570 

3,010 

2,550 

2,210 

1,930 

1,730

Apr.

1,570 

1,430 

1,320 

1,230 

1,140

1,070 

1,020 

956 

912 

872

840 

800 

776 

736 

712

696 

672 

648 

632 

60S

593 

572 

551 

537 

523

502 

495 

516 

516 

481

Secondfoot-days

3,549 

16,703 

85,365

606,131

48,307 

121,818 

'208,340 

23,926 

11,146 

4,742 

2,541 

1,496 

874

528,807

Peak discharge (base, 17,700 sec. -ft.).- Feb. 11 (5 a

May

467 

670 

736 

579 

509

474 

446 

439 

474 

432

404 

378 

366 

360 

348

336 

312 

306 

294 

286

330 

312 

282 

174 

174

. 158 

228 

222 

216 

216 

216

Maximum

262 

1,'410 

6,920

30,500

6.OOO 

14,600 

33,200 

1,570 

736 

228 

110 

132 

63

33,200

June

228 

228 

216 

205 

200

189 

184

179 

174 

174

158 

158 

158 

158 

149

149 

136 

145 

145 

145

136 

140 

136 

132 

123

123 

106 

140

118 

110

July

110 

110 

98 

102 

.100

106

106 

102 

98 

95

95 

91 

87 

83 

83

50 

70 

87 

76 

76

36 

80 

80 

76 

76

 45 

70 

73 

30

64 

76

Minimum

56 

238 

332

55

715 

701 

1,730 

481 

158 

106 

30 

11 

11

11

Aug.

73 

33 

76 

73 

83

30 

132 

66 

28 

14

38 

54 

53

70 

66

43 

43 

43 

43 

22

14 

54 

70 

28 

12

56 

66 

28 

11 

49 

25

Mean

114 

557 

2,754

1,656

1,558 

4,351 

6,721 

798 

360 

158 

82.0 

48,3 

29.1

1,449

Sept.

11 

50 

38 

11 

33

14 

57 

41 

14 

53

25 

12 

51 

25 

12

59 

63 

25 

11 

11

47 

25 

11 

28 

12

51 

25 

12 

33 

14

Runoff In 

acre-feet

7,O40 

33,130 

169,300

1,202,000

95,820 

241,800 

413,200 

47,460 

22,110 

9,410 

5,040 

2,970 

1,730

1,049,000

m.) 19,800 sec. -ft. j Mar. 18 (10:45 a.m.) l

42,000 sec.-ft.
EEL RIVER BASIN 427

Van Duzen River at Bridgeville, Calif.

Location.- Wire-weight gage,-lat. 40°28'05", long. 123°47'55", in NW£ sec. 13, T. IN., 

RT~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 1949.

Extremes.- Maximum discharge during year, 13,400 second-feet Feb. 22 (gage height, 20.0 

feet, from crest-stage indicator); minimum observed, 5.6 second-feet Sept. 23, 24.

1939-49: 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, that of Sept. 23, 24, 1949.

Remarks. - Records fair. Wire-weight g'age read twice daily, with additional readings in 

periods of high water. No storage or large diversion.

Rating tables, water year 194S-49 (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to Dec. 7 Dec. 8 to Sept. 30

2.9 26 4.4 192 8.0 1,840 2.7 2.4 4.1 139 7.2 1,320 

3.1 35 4.7 258 9.0 2,480 2.8 6.4 4.4 184 8.0 1,760 

3.2 41 5.0 345 11 3,840 2.9 11 4.7 244 9.0 2,370 

3.4 57 5.4 485 13 5,470 3.0 17 5.0 325 11 3,760 

3.6 76 6'.0 740 15 7,380 3.2 32 5.5 505 13 5,470 

3.8 100 6.5 970 17 9,600 3.5 62 6.0 720 

4.1 142 7.0 1,240 18.5 11,400 3.8 99 6.5 960

Note . - Same as preceding table above 13 

feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

28 

28 

44 

227 

225

116 

78 

61 

51 

44

62 

59 

48 

44

40

38 

36 

34 

33 

32

31 

30

30 

32 

33

32

31 

31 

30 

30 

32

Nov.

786 

787 

988 

436 

271

178 

139 

116 

94 

83

74 

68 

62. 

59 

89

214 

370 

230 

518 

497

322 

232 

187 

160 

138

156 

142 

' 161 

232 

178

Dec.

161 

156 

446 

418 

2,930

1,490 

5,010 

2,400 

1,570 

1,210

1,690 

4,250 

3,020 

1,810 

1,350

935 

756 

594 

529 

489

465 

404 

369 

355 

319

362 

343 

337 

1,230 

1,300 

1,210

Jan.

1,940 

1,400 

1,070 

788 

666

573 

734 

724 

585 

501

429 

404

394 

362 

331

301 

284 

282 

273 

251

249

249 

210 

168 

160

174 

191 

174 

179 

186 

174

Feb.

178 

178 

193 

271 

263

332 

340 

304 

334 

1,580

2,190 

1,040 

765 

648 

752

975 

1,040 

1,060 

1,180 

1,290

1,610 

9,590 

5,060 

2,210 

2,020

1,880 

1,690 

1,490

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May

June 

JUly 

Augu 

Sept

Wa

lendar year 1948 

apy .

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

ter year 1948-49 .......................

Mar.

1,480 

2,340 

1,980 

1,600 

1,260

1,160 

1,110 

1,020 

1,690 

2,000

1,820 

1,430 

1,310 

1,380 

4,280

4,390 

7,840 

11,300 

9,220 

5,140

3,280 

2,670 

2,060 

1,630 

1,320

1,160 

1,080 

980 

850 

783 

684

Apr.

639 

639 

612 

594 

666

657 

666 

670 

666 

747

801 

765 

657 

657 

652

639 

626 

565 

505 

461

449 

441 

433 

411 

376

358 

337 

372 

422 

343

May

340 

1,200 

778 

505 

418

383 

380 

390 

349 

337

334 

331 

322 

307 

279

263 

249 

231 

210 

222

254

206 

188 

178 

168

159 

145 

140 

139 

133 

136

Second- Maximum 

foot-days

1,670 227 

7,967 988 

37,908 5,010

284,952 12,800

14,406 1,940 

40,463 9,590 

80,247 11,300 

16,826 801 ' 

9,674 1,200 

2.3E3 173 

735 41 

332.2 16 

198.6 7.4

212,749.8 11,300

June

173 

145 

131 

120 

115

104 

99 

96 

89 

86

81 

76 

74 

72 

67

62 

60 

60 

59 

61

60 

55 

53 

51 

50

47 

46 

45 

43 

43

July

41 

39 

37 

36 

34

33 

33 

32 

30 

29

27 

27 

25

23 

21

21 

20 

18 

18 

17

17 

17 

17 

16 

16

16 

15 

15 

15 

15 

15

Aug.

15 

16 

15 

15 

14

13 

12 

12 

12 

12

11 

11 

11 

10 

10

10 

10 

10 

10 

9.8

9.3 

8.8 

8.8 

8.8 

8.8

8.8 

8.3 

8.3 

8.3 

7.8 

7.4

Minimum Mean

28 53.9 

59 266 

156 1,223

16 779

160 465 

178 1,445 

684 2,589 

337 561 

133 312 

43 77.4 

15 23.7 

7.4 - 10.7 

5.6 6.62

5.6 583

Peak discharge (base, 8,500 sec. -ft.).- Feb. 22 (1 am.) 13,400 see. -ft.} Mar. 18 (8 a.m

Sept.

7.4 

7.4 

6.9 

6.4 

6.4

6.4 

6.4 

6.4

6.4 

6.4

6.9 

6.9 

6.9 

6.9 

6.9

6.9 

6.9 

6.9 

6.9 

6.9

6.4 

6.0 

5.6 

5.6

6.0

6.4 

6.4 

6.9 

6.9 

6.9

Runoff in 

acre-feet

3,310 

15,800 

75,190

565,200

28,570 

80,260 

159,200 

33,370 

19,190 

4,610 

1,460 

659 

394

422,000

.) 12,900
428 KLAMATH RIVER BASIN

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

Location.- Water-stage recorder, lat. 42°34', long. 121°52', in sec. 3, T. 35 S., R. 7 E.,

 a quarter of a mile downstream from 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 1949.

Average discharge.- 32 years, 857 second-feet.

Extremes.- Maximum discharge during year, 2,010 second-feet Mar. 23 (gage height, 3.93

 fee't);" minimum, 470 second-feet July 10, 24, 25.

1917-49: Maximum discharge', 7,660 second-feet Apr. 1, 1943 (gage height, 7.29 feet); 

minimum, 320 second-feet Oct. 14, 1920.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

which are fair. Diversions above station for irrigation. Manipulation of gates at 

dam above station causes fluctuation at times.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power 

Co^

Revisions (water years).- W 981: 1938(M).

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

1? 

18 

19 

20

21 

22 

23 

24 

25

26 

2? 

28 

29 

30 

31

Oct.

570 

570 

570 

570 

. 576

583 

596 

602 

616 

609

609 

'590 

583 

570 

537

590 

576 

590 

559 

559

559 

559 

554 

559 

554

548

554 

559 

570 

570 

570

Nov.

583 

616 

616 

616 

622

622 

616 

590 

590 

596

583 

583 

590 

590 

602

602 

616 

622 

628 

622

609 

616 

616 

616 

616

622 

622

616 

583 

616

Dec.

602 

622 

622 

564 

602

583 

616 

656 

649 

663

670 

677 

670 

656 

a630

609 

528 

a625 

a625 

635

602 

3560 

h548 

d550 

3550

3570 

590 

602 

802 

570 

609

Jan.

609 

576 

532 

564 

554

576 

583 

576 

564 

564

554 

542

576 

583 

583

576 

590 

590 

570 

564

564 

559 

564 

559

d550

3540 

3540 

d540 

d540 

3540 

h532

Feb.

570 

576 

583 

583 

570

559 

502 

583 

554 

590

596 

570 

564 

570 

576

576 

583 

616 

628 

649

670 

742 

840 

991 

1,100

1,180 

1,230 

1,240

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

.-Ha

lendar year 1948

h.......................................

Mar.

1,110 

1,030 

1,010 

1,020 

1,040

1,040 

911 

825 

818 

832

863 

887 

935 

1,010 

1,070

1,150 

1,340 

1,540 

1,570 

1,640

1,760 

1,890 

2,000 

1,980 

1,900

1,790 

1,640 

1,500 

1,420 

1,400 

1,360

A£r.

1,320 

1,310 

1,290 

1,320 

1,390

1,450 

1,510 

1,590 

1,650 

1,710

1,740 

1,760 

1,730 

1,700 

1,680

i.esa

1,660 

1,600 

1,570 

1,540

1,570 

1,610 

1.650 

1,650 

1,610

1,600 

1,610 

1,660 

1,680 

1,670

Secondfoot-days

17,781 

18,237 

18,957

304,113

17,454 

19,591 

40,281 

47,510 

43,817 

23,061 

15,660 

15,569 

16,00$

293,923

May

1,640 

1,660 

1,620 

1,570 

1,540

1,600 

1,590 

1,590 

1,580 

1,480

1.360 

1,380 

1,420. 

1,560 

1,470

1,380 

1,370 

1,460 

1,500 

1,510

1,510 

1,460 

1,380 

1,380 

1,370

1,310 

1,180 

1,110 

983 

927 

927

Maximum

616 

628

677

2,300

609 

1,240 

2,000 

1,760 

1,660 

1,190 

663 

564 

616

2,000

June

935

975 

1,020 

1,110 

1,190

1,190 

1,120 

1,020 

943 

887

840 

795 

750 

712 

720

705 

642 

609 

537 

542

576 

564 

554 

642 

335

596 

570 

564 

559 

559

July

Minimum

548 

583 

548

466

532 

502

818 

1,290 

927 

537 

470 

474 

484

470

559 

548 

515 

515 

515

520 

663 

576 

492

470

479 

484 

484 

488 

506

583 

526

488 

474 

474

479 

484 

484 

479 

474

479 

479 

484 

479 488' 

492

Aug.

548 

564 

520 

506 

502

479 

474 

479 

484 

488

488 

488 

488 

488 

492

492 

492 

492 

492 

492

497 

506 

559 

526 

506

506 

497 

502 

506 

506 

510

Mean

574 

608 

612

831

563 

700 

1,299 

1,584 

1,413 

769 

505 

502 

534

805

Sept.

506 

510 

506 

502 

484

492 

484 

554 

616 

542

526 

520 

526 

526 

532

537 

537 

548 

554 

548

542 

542 

548 

542 

542

542 

542 

548 

548 

559

Runoff In 

acre-feet

35,270 

36,170 

37,600

603,200

34,620 

38,860 

79,900 

94,230 

86,910 

45,740 

31,060 

30,880 

31,750

583,000

Peak discharge (base, 1,400 sec. -ft.).- Mar. 23 (11 a.m. to 10 p.m.) 2,010 sec. -ft. ; Apr. 12

(6 p.m.) 1,830 sec.-_tt,

a No gage-height recor3j 31scharge Interpolates or computes on basis of recorded range In stage 

an3 weather recor3s.

d Doubtful gage-height recor3; discharge Interpolated.

h Computed from staff-gage rea31ng.
KLAMATH RIVER BASIN 429

Upper Klamath Lake near Klamath Palls, Oreg.

Location.- Water-stage recorder, lat. 42°15', long. 121M8 1 , in SW£ sec. 19,-T. 38 S., R. 

s E., 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 1949.

Extremes.- Maximum elevation during year, 4,143.47 feet May 16; maximum daily, 4,143.06

 feet May 16; minimum, 4,138.88 feet Oct. 2; minimum daily, 4,139.44 feet Feb. 3.

1904-49: Maximum elevation 4,144.98 feet about Apr. 20, 1904, from high-water 

marks; minimum recorded, 4,135.55 feet Oct. 30, 1944.

Remarks.- Reservoir is formed by concrete dam at outlet of natural lake, completed in 

1921, replacing a temporary dam built"in 1919; storage began Apr. 15, 1919. Capacity, 

584,000 acre-feet between elevations 4,135.0 and 4,143.3 feet. Dead storage below 

elevation 4,135 feet not known; lake level ordinarily maintained between elevations 

4,137 feet (contents, 118,600 acre-feet) and 4,143.3 feet. Water stored may be diverted through "A" Canal fo'r irrigation of land under Klamath project of Bureau of 

Reclamation, pr 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.

Coooeration.- Capacity table and water-stage recorder inspections furnished by The 

Oanrornia Oregon Power Co.

Revisions, (water years).- W 1061: 1944.

Elevation, In feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

S9.81

39.49

S9.51

S9.79

39.82

S9.74

S9.80

S9.81

S9.78

S9.81

4o'. 12

S9.94

S9.7S

S9.80

39.86

S9.89

39.77

39.70

39.68

39.71

39.68

39.67

39.48

39.75

39.70

39.69

39.74

39.73

39.78

39.47 '

39.60

Nov.

39.60

39,47

39.87

39.82

39 . 83

39.84

39.78

39.78

39.73

39.69

39.68

39.67

39.63

39.47

39.63

39.63

39.76

39.72

39.71

39.77

39.76

39.75

39.74

39.92

39.87

39.95

39.73

39.73

39.77

39.90

-

Dec.

3S.75

39.78

39.88

39.84

39.91

39.88

39.91

39.95

39.95

39.97

40.05

40.14

40.14

40.20

40.20

40.19

40.19

40.16

40.11

40.11

40.09

40.07

40.05

40.02

39.98

39.95

39.91

39.87

39.86

39.85

39.82

Jan.

39.84

39.85

39.84

39.81

39.77

39.76

39.75

39.73

39.71

39.68

39.65

39.62

39.59

39.57

39.55

39.54

39.53

39.52

39'. 51

39.50

 39.50

39.51

39.52

39.51

39.50

39.50

39.49

39.48

39.47

39.46

39.46

Feb.

39.46

39.45

39.44

39.46

39.46

39.41

39.54

39.51

39.51

39.51

39.53

39.52

39.51

39.49

39.49

39.49

39.49

39.51

39.52

39.54

39.54

39.58

39.66

39.70

39.77

39.84

39.82

39.98

-

-

-

Mar.

40.04

40.11

40.17

40.24

40.29 I

40.39

40.44

40.50

40.51

40.56

40.60

40.64

40.72

40.71

40.67

40.72

40.54

40.39

40.87

41.04

41.07

41,21

41.36

41.34

41.41

41.36

41.57

41.60

41.56

41.72

41.61

Apr.

41.67

41.74

41.68

41.65

41.72

41.77

41.83

41.86

41.87

41.92

41.98

42.07

42.06

42.12

42.09

42.12

42.17

42.23

42.25

42.23

42.25

42.23

42.43

42.47

42.41

42.41

42.24

42.44

42.52

42.35

-

Hay

42.31

42.62

42.66

42.64

42.61

42.59

42.57

42.68

42.68

42.72

42.77

42.76

42.84

42.88

43.02

43.06

43.02

42.88

42.91

42.78

42.81

42.89

42.91

42.92

42.89

42.91

42.87

42.89

42.87

42.80

42.73

June

42.89

42.87

42.86

42.87

42.84

42.81

42.86

42.82

42.84

42.87

42.89

42.85

42.84

42.77

42.78

42.83

42.65

42.65

42.47

42.54

42.52

42.52

42.47

42.47

42.44

42.47

42.34

42.43

42.25

42.23

-

July

42.17

42.15

42.17

42.15

42.14

42.08

42.08

42.07

41.98

41.98

41.95

41.86

41.79

41.74

41.76

41.75

41.74

41.74

41.69

41.55

41.56

41.51

41.44

41.43

41.42

41.39

41.35

41.38

41.32

41.16

41.21

Aug.

41.15

41.15

41.16

41.14

40.96

40.95

41.07

41.06

41.04

40.88

40.85

40.86

40.85

40.84

40.77

40.75

40.76

40.73

40.68

40.67

40.62

40.65

40.56

40.53

40.52

40.46

40.44

40.41

40.44

40.44

40.43

Sept.

40.39

40.36

40.31

40.24

40.17

40.12

40.11

40.19

40.20

40.15

40-20

40.20

40.14

40.09

39.99

40.21

40.04

40.00

39.97

40.01

39.97

39.93

39.93

39.99

39.97

39.84

39.77

39.71

39.75

39.82

T 

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 1948 to September 1949

Date

Dec. 31....................

Calendar year 1948..'.....

AUK "31

Sept. 30. ...................

elevation 

(feet)

4,139.74 

4,139.63 

4,139.80 

4,139.84

-

4,139.46

4,139.99 

,141.66 

,142.48 

,142.84 

,142.23 

,141.19 

,140.40 

,139.76

-

Contents 

(acre-feet)

286,000 

278,800 

290,000 

292,800

-

267,800 

303,400 

438,600 

510,000 

542,100 

483,100 

398,600 

334,200 

237,300

-

Change in contents 

during month 

(acre-feet)

-7,200 

+11,200 

+2,800

+67,900

-25,000 

+35,600 

+135,200 

+71,400 

+32,100 

-54,000 

-89,500 

-64,400 

-46,900

+1,300

is mean of elevation for last 3 days of that month and first 3 days of following month.
430 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." 

9 Ji., 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 1949.

Average discharge.- 45 years,' 1,517 second-feet (including Keno Canal).

Extremes - Maximum combined discharge of Link River and Keno Canal during year, 2,560 

second-feet Dec. 14; minimum, 55 second-feet Mar. 18, 19.

1904-49: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 

7.30 feet); minimum, 12 second-feet Mar. 22, 1945; minimum daily, 17 second-feet Dec. 

13, 1937.

Remarks.- Records good. Regulation since April 1919 by Upper Klamath Lake. Water diverted above station by the main or "A" Canal of Klamath project and Keno Canal 

(see pp. 437, 438). Other small diversions above lake. Records of discharge include 

flow of Keno Canal.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power

Discharge, In second-feet, water year October 1948 to September 1949

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

1,350

1,340

1.3SO

1,370

1,360

1,360

1,370

1,390

1,380

1,380

1,400

1,390

1,380

1,370

1,390

1,380

1,380

1,370

1,370

1,380

1,380

1,560

1,660

1,620

1,530

1,530

1,440

1,380

1,390

1,360

1,370

NOT.

1,360

1,360

1,390

1,370

1,370

1,370

1,440

1,580

1,580

1,570

1,580

1,510

1,510

1,430

1,350

1,340

1,350

1,350

1,350

1,370

1,360

1,360

1,360

1,370

1,360

1,370

1,350

1,350

1,360

1,420

-

Dec.

1,570

1,500

1,570

1,560

1,570

1,580

1,620

1,560

1,520

1,580

1,650

1,650

1,670

2,020

2,460

2,400

2,410

2,400

2,400

£,380

2,180

2,380

2,400

2,400

2,400

2,400

2,400

2,400

2,380

2,210

1,980

Month

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

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

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

Calendar year 1948 . . .

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

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

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

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

Itay.... ................

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

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

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

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

Water year 1948-49. . .

Jan.

1,770

1,910

2,060

2,120

2,150

2,140

2,120

2,050

2,110

2,350

2,420

2,290

2,000

1,850

1,770

1,770

1,770

1,710

1,610

1,610

1,610

1,570

1,510

1,530

1,580

1,580

1,580

1,580

1,560

1,520

1,520

Feb.

1,520

1,560

1,600

1,570

1,570

1,620

1,750

1,810

1,810

1,810

1,780

1,730

1,700

1,640

1,610

1,520

1,440

1,360

1,290

1,080

747

584

391

401

382

343

332

381

_

-

Mar.

367

341

332

334

337

335

342

394

475

524

534

449

442

552

663

592

326

161

65

753

1,010

448

454

468

555

480

901

995

1,070

1,020

668

Apr.

489

441

356

348

348

570

657

654

588

535

630

663

661

586

571

497

354

539

441

429

426

344

536

540

445

434

426

514

657

637

-

Hay

425

522

519

561

437

335

342

339

343

350

348

354

355

622

1,080

1,440

1,440

1,660

1,930

1,910

1,920

2,000

1,800

2,130

2,120

2,120

1,930

1,570

1,330

1,640

1,440

River including Keno Canal

Maximum

1,660

1,580

e,460

2,460

2,420

1,810

1,070

670

2,130

1,360

1,120

993

1,380

2,460

Minimum Maan Runoff ^ acre-feet

1,340 1,409 86,640

1,340 1,406 83,680

1,50O 2,019 124,200

28 1,160 841,730

1,510 1,830 112,500

332 1 262 70 080

65 529 32 500

344 514 30 ' 580

335 1,139 70,040

637 895 53,270

656 873 53,670

666 862 53,020

821 1,104 65,680

65 1,155 835,860

June

1,360

926

1,110

718

727

720

721

686

645

637

738

831

745

832

1,130

1,170

1,160

1,280

715

856

896

829

826

953

947

918

852

922

1,040

969

-

July

1,010

823

859

781

683

729

809

828

909

984

1,010

911

1,050

1,000

942

1,120

903

846

874

876

827

812

766

805

866

895

948

945

794

656

"A" Canal 

(runoff in

acre-feet)

0

0

0

167,040

0

0

0

6,100

34 150

49^220

54,830

42,760

29,220

216,280

797

Aug.

666

679

760

740

748

727

904

891

901

891

819

784

792

792

791

801

946

956

957

938

916

958

870

885

937

940

943

929

907

970

993

Sept.

968

1,030

1,010

857

958

956

935

956

837

834

821

1,030

1,030

1,020

1,010

1,150

1,120

1,120

1,110

1,110

1,160

1,850

1,240

1,370

1,370

1,370

1,370

1,370

1,380

1,370

-

River including 

Keno and "A* Canals

Runoff in 

acre-feet

86,640

83,680

124,200

1,008,770

112,500

70,080

32,500

36,680

104,190

102,490

108,500

95,780

94,900

1,052,140

Mean

1,409

1,406

2,019

1,390

1,830

1,262

529

616

1,694

1,722

1,765

1,558

1,595

1,453
KLAMATH RIVER BASIN 431

Klamath River at Keno, Oreg.

Location.- Water-stage recorder, lat. 42°08', long. 121°58', In SE£ sec. 35, T. 39 S., R, 

7 E., 2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area.- 3,920 square miles, not including Lost River or Lower Klamath Lake Basins.

Hecords available.- June 1904 to December 1913, January 1930 to September 1949.

Average aiscnarge.- 28 years, 1,502 second-feet.

Extremes.- Maximum discharge during year, 2.690 second-feet May 24 (gage height, 6.89

 TeeTTT minimum, 364 second-feet Mar. 20 (gage height, 3.07 feet).

1904-13. 1930-49: Maximum discharge, 6,830 second-feet May 1-6, 1938 (gage height, 

10.10 feet); minimum, 35 second-feet Aug. 4, 1934; minimum dally, 60 second-feet May 

19, 1934.

Remarks.- Records excellent. Diversions above station for irrigation. Lost River diverslon 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 OregontPower Co.

Rating table, water year 1948-49 (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 seoond-feet, water year October 1948 to September. 1949

Day

1 

2 

3 

4

&

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19

20

21 

22 

23 

24

25

26 

27 

28 

29 

30 

31

Oct.

1,780 

1,760 

1,730 

1,720 

1,720

1,720 

1,720 

1,680 

1,690 

1,680

1,650 

1,620 

1,620 

1,620 

1,620

1,620 

1,610 

1,600 

1,600 

1,580

1,540 

1,580 

1,720 

1,690 

1,650

1,650 

1,660 

1,620 

1,580 

1,740 

1,700

Nov.

1,640 

1,550 

1,520 

1,540 

1,550

1,550 

1,660 

1,750 

1,750 

1,800

1,810 

1,730 

1,730 

1,670 

1,630

1,630 

1,620 

1,600 

1,550 

1,590

1,600 

1,600 

1,590 

1,570 

1,570

1,560 

1,560 

1,530 

1,530 

1,560

.Dec.

'1,660 

1,680 

1,660 

1-.630 

1,620

1,620 

1,650 

1,660 

1,600 

1,540

1,530 

1,550 

1,550 

1,720 

2,050

2,110 

2,130 

2,150 

2,160 

2,160

2,170 

2,160 

2,190 

2,180 

2,180

2,180 

2,180 

2,180 

2,170 

2,080 

1,870

Seco

Jan.

1,650 

1,650 

1,730 

1,730 

1,750

1,780 

1,790 

1,740 

1,700 

1,900

2,060 

2,030 

1,780 

1,660 

1,630

1,630 

1,610 

1,660 

1,750 

1,840

1,840 

1,800 

1,710 

1,670 

1,680

1,690 

1,660 

1,570 

1,500 

1,490 

1,;500

Feb.

1,490 

1,490 

1,490 

1,520 

1,530

1,530 

1,730 

1,820 

1,870 

1,370

1,940 

1,960 

1,970 

1,870 

1,820

1,780 

1,690 

1,720 

1,600 

1,470

1,220 

1,210 

1,240 

1,280 

1,350

1,350 

1,340 

1,320

Mar.

1,300 

1,270 

1,190 

1,180 

1,180

1,190 

1,190 

1,170 

1,170 

1,170

1,170 

1,170 

1,140 

1,140 

1,130

1,130 

1,130 

1,570 

2,090 

1,050

736 

1,100 

1,080 

1,070 

1,070

1,080 

1,210 

1,330 

1,330 

1,220 

945

Apr.

726 

636 

646 

636 

636

628 

628 

618 

623 

623

614 

614 

623 

560 

512

500 

488 

488 

488 

488

512 

528 

520 

520 

516

508 

520 

512 

516 

512

n{J_ Discharge In second-feet

Month foot-days mximaa

Octo 

Nove 

Dece

Cs

Jam 

Pebr 

Marc 

Aprl

Mnv

June 

Julj 

Augu 

Sept

Wa

lendar year 1946

h. ..............

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

51,470 1,780 

48,540 1,810 

58,970 2,190

455,023 2,680

53,180 2,060 

44,470 1,970 

36,901 2,090 

16,939 726 

45,099 2,660 

20,994 1,590 

20,140 740 

25,312 890 

32,938 1,390

ter year 1948-49 454,953 2,660

Minimum

1,540 

1,520 

1,530

164

1,490 

1,210 

736 

488 

512 

492 

540 

704 

885

488

Mean

1,660 

1,618 

1,902

1,243

1,715 

1,588 

1,190 

565 

1,455 

700 

650 

817 

1,098

1,246

Hay

512 

512 

516 

516 

520

520 

516 

524 

578 

695

700 

745 

775 

8J50 

1,400

2,020 

1,920 

2,180 

2,340 

2,340

2,360 

2,450 

2,230 

2,610 

2,660

2,600 

2,360 

2,010 

1,600 

1,800 

1,740

Runof

acre-f

June

1,590 

1,300 

1,210 

956 

1,010

978 

654 

650 

614 

564

492 

516 

623 

592 

532

582 

605 

592 

574 

564

556 

556 

574 

592 

587

582 

587 

574 

569 

569

July

556 

556 

556 

552 

552

556 

548 

548 

544 

540

582 

682 

740 

736 

726

731 

736 

718 

713 

708

695 

686 

654 

650 

. 646

650 

713 

731 

722 

713 

700

Aug.

704 

718 

755 

755 

755

750 

760 

780 

825 

825

835 

830 

825 

820 

820

820 

815 

810 

80S 

805

810 

810 

840 

865 

865

875 

885 

690 

890 

880 

890

Sept.

890 

S90 

896 

896 

896

901 

901 

901 

896 

890

885 

956 

1,060 

1,050 

1,040

1,080 

1,130 

1,130 

1,130 

1,150

1,220 

1,260 

1,300 

1,390 

1,390

1,390 

1,370 

1,360 

1,350 

1,340

f Diversion Puapage 

at Ady at Ady 

eet (aere-feet>t (acre-feet)

102,100 585 3,180 

96,280 732 2,170 

117,000 23,100 125

902,600 75,950 76,520

105,500 27,540 5,570 

88,200 10,090 9,670 

73,190 1,930 12,120 

33,600 605 13,880 

89,450 1,810 10,150 

41,640 4,370 7,860 

39,950 3,370 3,480 

50,210 3,510 4,930 

65,330 2,380 2,070

902,400 80,020 75,200

t Includes diversion to Midland Canal and diversion at Ady to Klamath Strait.
432 KLAMATH RIVER BASIN

Klamatji River below Pall Creek, near Copco, Calif.

Location.- Water-stage recorder, lat. 41°5&', 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 1949. October 1923 to September 1928 to 

site above Kail Creek.

Average discharge.- 26 years, 1,489 second-feet (including Pall Creek).

Extremes.- Maximum discharge during year, 4,180 second-feet Nov. 22 (gage height, 5.00 

feet); minimum, 268 second-feet July 10 [gage height, 1.66 feet); minimum daily, 292 

second-feet Aug. 28.

1923-49^ Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 

7.39 feet); minimum, about 10 second-feet above Pall Creek several times in 1925 and 

1926; minimum daily, 83 second-feet at oresent 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, 1948-49 (gage height, in feet, 

and discharge, in second-feet)

1.7 385 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 1948 to September 1949

Day

1 

Z

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

ZZ 

23 

£4 

25

26 

27 

28 

29 

30 

31

Oct.

2,080 

1,930 

866 

2,120 

2,070

2,250 

2,270 

2,320 

1,470 

978

2,060 

1,750 

2,020 

2,000 

2,040

2,360 

494 

2,120 

2,210 

2,120

2,000 

1,920 

1,780 

856 

2,060

2,090 

2,080 

2,090 

2,030 

1,700 

489

Nov.

2,070 

2,100 

2,080 

2,070 

2,090

1,900 

706 

2,140 

2,140 

2,120

1,940 

2,110 

1,950 

1,190 

2,000

2,090 

2,060 

2,140 

2,050 

1,990

663 

2,030 

2,030 

2,200 

1,530

2,120

2,160 

680 

2,090 

2,060

Dec.

2,090 

2,040 

1,630 

1,900 

998

1,940 

2,020 

2,080 

2,050 

2,140

2,110 

1,180 

2,140 

2,270 

2,660

2,560 

2,460 

2,230 

954 

2,260

2,580 

2,560 

2,770 

2,680 

1,690

1,360 

2,590 

2,210 

2,620 

2,570 

2,610

Jan.

2,110 

606 

2,130 

2,150 

2,160

2,120 

2,130 

2,110 

983 

2,180

1,980 

2,170 

2,270 

2,250 

1,570

1,570 

2,250 

1,970 

1,760 

1,960

2,140 

2,110 

1,060 

1,810 

2,030

2,190 

2,000 

1,930 

1,520 

1,000 

1,760

Feb.

1,720 

1,800 

1,810 

1,360 

1,640

1,540 

2,060 

2,090 

2,030 

2,250

2,290 

2,470 

871 

2,300 

2,280

1,990 

2,020 

2,180 

1,880 

957

1,780 

2,210 

1,980 

1,670 

1,850

2,220 

732 

1,960

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebp 

Marc 

Aprl

Mflv

June 

July 

Augu 

Sept

wa

lendar year 1948

ter year 1948-49 .......................

Mar.

 1,960 

1,900 

1,610 

1,700 

1,790

325 

1,680 

1,670 

1,650 

1,610

1,630 

1,690 

558 

1,660 

1,720

1,680 

1,990 

2,300 

2,350 

849

1,210 

1,630 

1,670 

1,670 

1,680

1,310 

680 

1,950 

1,660 

1,420 

1,220

Apr.

1,530 

1,150 

46,4 

1,080 

1,230

1,150 

1,180 

1,160 

1,110 

346

1,150 

1,240 

1,340 

1,150 

1,060

905 

418 

1,280 

1,370 

1,370

1,140 

994 

1,030 

315 

1,030

1,060 

1,090 

1,050 

1,040 

904

Secondfoot-days

56,623 

56,499 

65,952

550,382

57,979 

52,440 

48,422 

31,336 

54,832 

29,692 

26,922 

33,076 

40,556

554,329

May

338 

1,100 

1,100 

1,110 

1,120

1,110 

680 

442 

1,090 

1,150

1,240 

1,510 

1,480 

1,480 

842

2,320 

2,580 

2,530 

2,860 

2,520

2,940 

1,470 

2,540 

2,820 

2,920

2,960 

2,900 

2,580 

1,080 

1,710 

2,310

Maximum

2,360 

2,200 

2,770

2,890

2,270 

2,470 

2,350 

1,530 

2,960 

1,980 

1,170 

1,430 

1,960

2,960

June

1,980 

1,700 

1,700 

1,200 

631

1,540 

1,080 

1,070 

888 

946

806 

310 

1,050 

844 

1,050

963 

937 

916 

310 

943

942 

928 

925 

932 

819

305 

966 

947 

954 

1,110

July

1,070 

793 

305 

300 

960

1,010 

992 

878 

674 

317

1,160 

1,170 

1,060 

974 

1,050

852 

295 

1,050 

1,050 

1,020

944 

1,060 

1,050 

315 

1,130

1,110 

1,060 

1,070 

1,060 

838 

305

Aug.

1,160 

1,130 

1,210 

1,190 

1,160

762 

320 

1,230 

1,140 

1,130

1,220 

1,140 

968 

305 

1,270

1,250 

1,260 

1,310 

1,270 

822

368 

1,240 

1,230 

1,260 

1,200

1,240 

809 

292 

1,380 

1,380 

1,430

Minimum Mean

489 1,827 

663 1,883 

954 '2,127

281 1,504

606 1,870 

732 1,873 

325 1,562 

315 1,045 

338 1,769 

305 990 

295 868 

292 1,067 

310 1,352

292 1,519

Sept.

1,380 

1,770 

1,060 

310 

399

1,460 

1,450 

1,330 

1,480 

824

358 

1,470 

1,460 

1,460 

1,470

1,580 

1,320 

401 

1,530 

1,570

1,700 

1,690 

1,700 

1,320 

814

1,960 

1,940 

1,920 

1,710 

1,720

Runoff In 

acre-feet

112,300 

112,100 

130,800

1,092,000

115,000 

104,000 

96,040 

62,150 

108,800 

58,890 

53,400 

65,610 

80,440

1,100,000
KLAMATH RIVER BASIN 433

Klamath River at Soraesbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long._ 123°29', In NE^ see. 4,-T. 11 H., R. 

 1> E. ,"'300' feet downstream from Salmon River and li'mile west of Somesbar post office. 

Altitude of gage, about 450 feet (from topographic mapj .

Drainage arga.- 8,480 square miles.

Records available.- October 1927 to September 1949.

Average discharge.- 21 years (1927-29, 1930-49), 6,555 second-feet.

Extremes.- Maximum discharge during year, 30,200 second-feet Feb. 22 (gage.height, 17.10 

feet); minimum, 794 second-feet Sept. 6, 7.

1927-49: 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. 2&, 1931. 

Flood of Feb. 21, 1927, reached a. stage of 50.8 feet.

Remarks.- Records excellent. Flow considerably regulated by reservoirs and power plants 

aoove station. Large diversions above station for Irrigation.

Revisions.- W 811: Drainage area.

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, In-second-feet;

4.1 

4.3 

4.S 

4.9

5.3

770

930

1,110

1,530

2,040

5.7 

6.0

6.5 

6.S 

7.5

2,600

3,050

3,880

4,420

5,750

8.0

9.0

10.0

13.0

16.0

6,750

8,900

11,400

19,200

27,200

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

21 

28 

29 

30 

31

Oct.

3,120 

3,150 

3,070 

3,110 

3,960

3,660 

3,600 

3,540 

3,520 

2,940

2,280 

3,390 

3,120 

3,220 

3,300

3,200 

3,470 

2,270 

2,700 

3,380

3,320 

3,210 

3,070 

2,970 

2,060

3,000 

3,210 

3,220 

3,230 

3,220 

3,020

Nov.

3,500 

5,040 

6,010 

4,920 

4,270

4,020 

3,780 

2,600 

3,340 

3,590

3,580 

3,450 

3,420 

3,520 

3,700

4,530 

5,450 

4,680 

5,300 

5,280

4,580 

3,180 

4,060 

4,260 

4,340

3,880 

3,960 

4,080 

3,520 

3,990

Dec.

4,180 

4,490 

5,500 

4,610 

5,860

5,240 

11,400 

12,900 

8,460 

8,040

12,700 

20,300 

14,700 

10,900 

_ 8,900

8,280 

7,530 

6,750 

6,270 

4,840

5,720 

5,830 

5,560 

5,690 

5,710

4,990 

3,88,0 

5,280 

5,560 

5,950 

5,870

Jan.

6,590 

6,330 

4,460 

5,290 

5,180

5,110 

5,030 

4,990 

4,820 

3,510

4,380 

4,500 

4,500 

4,760 

4,690

3,850 

3,990 

4,240 

4,260 

4,030

4,030 

4,290 

4,170 

3,180 

3,540

3,880 

4,200 

3,900 

3,760 

3,540 

2,870

Feb.

3,730 

3,640 

3,710 

3,880 

3,850

3,950 

3,950 

4,240 

4,280 

6,770

10,200 

8,000 

6,900 

8,240 

5,520

5,370 

5,970 

6,270 

6,920 

7,130

6,790 

17.2QO 

24,900 

15,800 

12,700

12,200 

12,300 

10,600

Month

Octo 

Nove 

Deoe

Ca

Janu 

Pebr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

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

ter year 1948-49 .......................

Peak discharge (base, 18.000 sec. -ft.).- D

E6.6OO sec. -ft. J Pet. 22 (7 p.m.) 30,200 sec 

22,400 sec. -ft.

Mar.

10,900 

10,900 

10,700 

9,690 

9,130

8,560 

7,150 

7,630 

7,720 

7,700

7,550 

7,330 

7,380 

6,690 

8,980

13,000 

13,900 

21,500 

22,000 

18,400

14,700 

13,600 

12,200 

11,100 

10,200

9,670 

9,160 

8,440 

8,970 

8,640 

8,150

Apr.

7,800 

7,980 

7,630 

7,190 

8,090

8,920 

9,740 

10,200 

10,600 

11,900

13,100 

14,100 

13,000 

12,400 

12,600

13,700 

14,800 

14,100 

13,800 

12,600

12,400 

12,300 

12,400 

11,500 

9,860

9,670 

9,600 

10,500 

9,880 

8,810

Secondfoot -days

97,530 

123,830 

231,890

2,698,460

135,870 

225,510 

331,680 

331,170 

329,060 

138, 150- 

66,130 

53,080 

58,878

2,122,778

May

9,610 

18,6Cto 

13,300 

11,500 

10,300

9,880 

10, 100 

9,880 

9,520 

11,600

13,000 

13,300 

13,800 

13,500 

12,600

11,200 

11,000 

10,200 

9,520 

9,740

9,210 

9,210 

8,020 

8,810 

9,550

9,810 

9,400 

8,830 

8,640 

7,340 

7,590

Maximum

3,960 

6,010 

20,300

86,500

6,590 

24,900 

22,000 

14,800 

18,600 

8,500 

2,880 

2,010 

2,690

24,900

June

8,500 

7,610 

6,920 

6,810 

6,430

6,050 

6,610 

5,990 

5,560 

5,310

5,030 

4,650 

4,260 

4,290 

4,420

4,150 

3,930 

3,760 

3,640 

3,490

3,180 

3,570 

3,510 

3,290

3,190

2,980 

2,740 

2,540 

2,880 

2,860

July

2,880 

2,780 

2,600 

2,450 

1,880

1,960 

2,520 

2,520 

2,520 

2,320

2,100 

1,810 

2,520 

2,450 

27?6T5'

2,260 

2,000 

1,820 

' 1,550 

2,100

2,070 

2,030 

1,960 

1,980 

1,750

1,580 

2,030 

1,940 

1,900 

1,860 

1,730

Minimum

2,060 

2,600 

3,880

1,460

2,870 

3,640 

6,690 

7,190 

7,340 

2,540 

1,550 

1,310 -818

818

Aug.

1.570 

1,470 

1..910 

1.940 

1,940

1,940 

1,580 

1,400 

1,450 

1,910

1,840 

1,870 

1,870 

1,530 

1,530

1,340 

1,880 

2,010 

1,960 

1,940

1,590 

1,390 

1,350 

1,840 

1,910

1,980 

1,940 

1,480 

1,400 

1,310 

1,910

Mean

3,146 

4,128

7,480

7,373

4,383 

8,054 

10,700 

11,040 

10,610 

4,605 

2,133 

1,712 

1,963

5,816

Sept.

1,980 

1,990 

2,080 

1,940 

1,520

818 

1,270 

2,150 

2,220 

2,070

1,650 

1,400 

1,440 

2,080 

2,050

2,030 

2,210 

1,910 

1,560 

1,460

2,180 

2,390 

2,320 

2,320 

2,010

1,580 

2,320 

2,690 

2,640 

2,600

Runoff In 

acre-feet

193,400 

245, 600 

459,900

5,352,000

269,500 

447,300 

657,900 

656,900 

652,700 

274,000 

131,200 

105,300 

116,800

4,210,000

so. 7 (6 p.m.) 19,900 see. -ft. J Dee. 12 (2:30 p.m.) 

-ft.; Mar. 18 (6 p.m.) 23,800 sec. -ft.) May 2 (9:30 a.m.)
434 KLAMATH RIVER BASIN

Smaller, reservoirs in Klamath River Basin, Oreg.

Fourmlle Lake Reservoir.- Staff gage, lat. 42°27', long. 122°14', in NWtr sec. 9, T. 36 S., 

H. b E., at dam at outlet of Fourmile Lake, 8 miles west of Recreation. Gage readings 

'are elevations above mean sea level, irrigation company datum. Drainage area, 15 square 

miles. Records available, June 1923 to September 1930, June 1932 to September 1949. 

Maximum contents observed during year, 15,170 acre-feet June 19 (elevation, 6,002.0 

feet); minimum observed, 5,259 acre-feet Oct. 21 (elevation, 5,989.1 feet). Maximum 

contents observed during periods 1923-30, 1932-49, 16,220 acre-feet May 18, 1938, June 

17, 20, 21, 23, 1944 (elevation, 6,003.1 feet); no usable contents at times.

Reservoir is formed on natural lake by rock-faced earth dam, completed by Rogue 

River Valley Canal Co. about 1922. Capacity, 13,330 acre-feet between elevations 5,980 

feet (sill of outlet gate) and 6,000 feet (crest of spillway, on which flashboards are 

placed to increase contents to 18,100 acre-feet at elevation 6,005 feet). Figures given 

herein represent usable contents. Water is used for irrigation of lands near Medford. 

Gage read daily June 19 to Aug. 2, occasionally at other times. No reading made during 

February.

Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28', in sec. 16, T. .39 S., R. 

3 E., at dam or Talent Irrigation District on Keene Creek, 3 miles north of AshlandKlamath Falls highway and 20 miles east of Ashland. Gage readings are elevations above 

mean sea level, datum of Talent Irrigation District. Records available, December 1922 

to September 1949. Maximum contents observed during year, 14,870 acre-feet June 3, 5 

(elevation, 5,014.5 feet); minimum observed, 2,417 acre-feet Sept. 26 (elevation, 

4,995.1 feet). Maximum contents observed during period 1922--49, 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 crsst). Dead 

storage negligible. Water used for irrigation near Ashland and Talent. Gage read once 

to three times a week from May to September, occasionally at other times.

Other reservoirs.- There are six other small reservoirs in Williamson River Basin and 

eignt in Uist River Basin, having a total capacity of. 12.300 acre-feet.. (See also 

Berber Reservoir and Clear Lake Reservoir, in "Records of discharge collected by 

agencies other than the Geological Survey," p. 12.)

Monthly elevation and contents, water year October 1948 to September 1949

Date

Calendar year 1946. . . .

Sept. 30... ..............

Water year 1943-49....

Fourmile Lake Reservoir

Elevation 

(feet)t

:

-

6,000.65 

5,994.70

-

Contents 

(acrefeet)

5,200 

5,330 

5,870 

6,890

-

7,220 

7,240 

7,740 

9,580 

13,280 

13,920 

9,034 

6,475 

6", 230

-

Change in 

contents 

during month 

(acre-feet)

+130 

+540 

+1,020

+4,920

+330 

+20 

+500 

+1,840 

+3,700 

+640 

-4,886 

-2,559 

-245

+1,030

Hyatt Prairie Reservoir

Elevation 

(feet)t

:

-

5,005.5 

5,011.4

-

Contents 

(acrefeet)

5,750 

5,840 

6,260 

6,830

-

7,090 

7,460 

8,063 

12,320 

14,780 

12,960 

8,220 

4,050 

2,400

-

Change in 

contents 

during month 

(acre-feet)

+90 

+420 

+570

+5,320

+260 

+370 

+603 

+4,257 

+2,460 

-1,820 

-4,740 

-4,170 

-1,650

-3,350

t Hour of reading not known.

Mote.- Contents interpolated for days on which gage was not read.
KLAMATH RIVER BASIN 435

Sprague River near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°35', long. 121°51', in NEir sec. 35, T. 34 S., R. 

7 K., It miles east of Chiloquin and 4 miles upstream from Modoc Point Canal intake.

Drainage area.- 1,580 square miles.

Records available.- August 1931 to September 1949. July 1920 to September 1931 at site at 

Mcuready hancn, 12 miles upstream; records equivalent except for extremely low stages.

Average discharge.- 28 years (1921-49), 459 second-feet.

Extremes.- Maximum discharge during year, 1,240 second-feet Apr. 29 (gage height, 3.13 

 reet); minimum, 143 second-feet July 10,

1920-49: Maximum discharge, 6,650 second-feet Apr. 1, 1943 (gage height, 7.47 feet); 

minimum daily, 50 second-feet (estimated) May 26, 27, 1926. *

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

which are 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 1948-49, except periods of ice effect 

(gage height, in feet, and discharge, in second-feet)

1.3 140 2.3 630 

1.5 207 2.6 830 

1.7 393 2.9 1,060 

2.0 450 3.2 1,300

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

270 

266 

262 

262 

262

262 

262 

266 

266 

262

262 

262 

262 

244 

236

284 

280 

2,80 

262 

257

257 

257 

257 

257 

257

257 

257 

257 

262 

262 

266

Nov.

280 

293 

293 

298 

313

318 

a310 

a290 

a280 

h288

a280 

a275 

a280 

a280 

a285

*293 

298 

293 

303 

298

288 

293 

288 

284 

284

288 

284 

280 

257 

293

Dec.

293 

293 

303 

b260 

b280

262 

280 

308 

318 

333

338 

333 

338

b300

Jan.

b270

»b258 

b260

Feb.

b280

395 

480 

630 

753

844 

908 

924

Month

Goto 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

h.. .................................... r

ter year 1948-49 .......................

Mar.

781 

704 

690 

704 

718

704 

576 

498 

498 

516

528 

516 

510 

546 

558

582 

630 

732 

788 

886

988

1,090 

*1,170 

1,160 

1,100

1,040 

879 

760 

697 

684 

648

Apr.

1

1 

1, 

1, 

1, 

1,

1 

1 

1,

1,

1, 

1, 

1 

1, 

1,

1, 

1, 

1, 

1, 

1,

Secondfoot-days

8,115 

8,687 

9,339

181,304

8,218 

10,814 

22,881 

29,943 

31,426 

13,460 

5,823 

5,751 

6,367

160,824

630 

624 

612 

642 

704

760 

837 

900 

964 

020

060 

090 

080 

070 

070

080 

070 

040 

030 

040

080 

120 

160 

160 

130

130 

160 

210 

240 

230

May

1,200 

1,200 

1,180 

1,120 

1,100

1,160 

1,140 

1,150 

1,120 

1,030

932 

956 

1,020 

1,130 

al,060

a990 

a980 

1,060 

1,110 

1,140

1,130 

1,060 

1,000 

1,030 

1,030

964 

844 

760 

654 

588 

588

Maximum

284 

318 

338

1,880

924 

1,170 

1,240 

1,200 

837 

348 

270 

275

1,240

June

594 

630 

678 

760 

837

830 

a760 

a680 

a620 

a570

a520 

a480 

434 

406 

417

395 

353 

298 

236

240

270 

257 

248 

353 

328

280 

262 

252 

240 

232

July

236 

215 

178 

182 

182

203 

348 

240 

165 

146

156 

162 

162 

168 

203

288 

211 

175 

162 

162

165 

168 

175 

165 

165

168 

168 

171 

171 

178 

185

Aug.

252 

270 

223 

203 

189

168 

165 

168 

171 

171

171 

171 

175 

175 

175

171 

168 

168 

165 

165

168 

193 

244 

203 

185

182 

168 

178 

182 

182 

182

Minimum Mean

236 262 

257 290 

301

175 495

265 

386 

498 738 

612 998 

588 1,014 

232 449 

146 188 

165 186 

162 212

J46 441

Sept.

182 

185 

185 

178 

162

175 

165 

275 

270 

215

203 

203 

203 

207 

207

207 

207 

223 

228 

223

223 

223 

223 

223 

228

228 

228 

'228 

228 

232

Runoff in 

acre-feet

16,100 

17,230 

18,520

359,600

16,300 

21,450 

45,380 

59,390 

62,330 

26,700 

11,550 

11,410 

12,630

319,000

* Winter discharge measurement made on this day. 

a Ho gage-height records discharge computed on basis ofrecorded range in stage and records for 

Williamson River below Sprague River, near Chiloquin. 

b Stage-discharge relation affected by ice. 

h Computed from staff-gage reading.
436 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. 

t> E., at divide between Rogue River and Klamath River Basins, 3 miles upstream from 

Pish Lake and 10 miles downstream from point of diversion.

Records available.- June 1924 to September 1949 (Irrigation seasons only).

Extremes.- Maximum daily discharge during period June to September, 45 second-feet July 

 H7-a9, 31, Aug. 1; no flow at times.

1924-49: Maximum daily discharge, 54 second-feet June 5-7, July 10., 11, 1934; no 

flow at times.

Remarks.- Records fair. Water stored in Fourmile Lake Reservoir was released to canal 

during period June 19 to Aug. 21. Canal diverts water from Pourmile Creek, in Klamath 

River Basin, and discharges into lava bed lj miles above Pish 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 Pish Lake.

Cooperation.- Water-stage recorder inspected by employee of Medford Irrigation District.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Move 

Dece

Ca

janu 

Pebn 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Th

.endar year

Mar. Apr.

Seoondfoot-days

383 

l,-296 

722 

0

-

May

Maximum

38 

45

45

0

-

June

8 

28

29 

30 

29 

31 

38

38 

38 

38 

38 

38

July

38 

38 

37 

37 

38

40 

40 

40 

40 

40

40 

40 

41 

42 

42

43 

43 

43 

44 

43

43 

44 

44 

44 

44

44 

45 

' 45 

45 

44 

45

Minimum

8 

37

0 

0

-

Aug.

45 

44 

44 

44 

44

43 

42 

42 

41 

39

37 

37 

36 

35 

31

30 

26 

18 

18 

17

9

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Mean

31.9 

41.8 

23.3 

0

-

Sept.

'

Runoff in 

acre-feet

760 

2,570 

1,430 

0

4,760
KLAMATH RIVER BASIN 437

"A" Canal at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°14', long. 121°48', in NE£ sec. 30, T. 38 S., R. 

9 js., 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 1949. 

Average discharge.- 39 years, 200 second-feet.

Extremes.- Maximum dally discharge during year, 1,080 second-feet June 17, 18; no flow 

 Oct. i to Apr. 19.

1910-49: Maximum dally discharge, 1,100 second-feet June 22, 1945; no flow at times.

Remarks, - Records good. Canal diverts water from Upper Klamath Lake in NEir sec. 30, T. 38 

S., K. 9 E., for irrigation of lands east of Klamath River on both sides of Lost River. 

Most of return water reaches Lost River.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11

12 

13

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. Nov. Dec. Jan. Feb.

Month

Octo 

Hove 

Dece

Ca

Janui Febri 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1946

ter year 1948-49 .......................

Mar. Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

10

45 

84 

116 

126 

196

310 

425 

537 

595 

630

Secondfoot -day 8

0 

0 

0

84,219

0 

0 

0 

3,074 

17,216 

24,813 

27,644 

21,558 

14,731

109,036

May

666 

668 

655 

690

741

753 

765 

768 

737 

659

653 

671 

680 

610 

515

452 

461 

414 

377 

322

283 

270 

262 

273 

365

485 

578 

677 

606 

596 

564

Maximum

0 

0 

0

999

0 

0 

0 

630 

768 

1,080 

940 

845 

657

1,080

June

501 

422 

362 

345 

389

498 

568 

646 

744 

884

948 

969 

1,010 

1,060 

1,070

1,070 

1,080 

1,080 

1,040 

1,010

934 

927 

946 

939

915

890 

873 

904 

898 

891

July

878 

885 

855 

808 

869

887 

918 

927 

926 

920

934 

940 

937 

923 

923

940 

925 

890 

895 

919

909 

898 

880 

838 

887

902 

884 

862 

852 

832 

801

Minimum

0

0 

0

0

0 

0 

0 

0 

262 

345 

801 

592 

79

0

Aug.

714 

705 

808 

845 

820

815 

783 

792 

806 

797

772 

732 

717 

670 

664

6S6 

652 

637 

663 

640

610 

620 

646 

644 

615

596 

599 

592 

626 

640 

652

Mean

0 

0 

0

230

0 

0 

0 

102 

555 

827 

892 

695 

491

299

Sept.

648 

643 

641 

646 

657

653 

636 

592 

501 

511

502 

495 

462 

419 

428

441 

426 

393 

392

418

423

431 

488 

522 

535

522 

485 

412 

330 

79

Runoff in 

acre-feet

0 

0

0

167,000

0 

0 

0 

6,100 

34,150 

49,220 

54,830 

42,760 

29,220

216,300

647609 0-51-39
438 KLAMATH RIVER BASIN

Keno Canal at Klamath Falls, Oreg.

Location.- Watt-hour meter, lat. 42°13', long. 121°48', in SWi: sec. 32, T. 38 S., R. 9 E., 

in west-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 1949. 

Average discharge.- 26 years, 214 second-feet.

Extremes.- Maximum daily discharge during year, 303 second-feet Mar. 24; minimum daily, 

 1'y second-feet Mar. 19.

1923-49: 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 dtermined 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 SE£ 

sec. 30. Water is used for developing power and returned to Link River in SWi sec. 32. 

Flow controlled by gates at head of canal.

Cooperation.- Gage readings and record of electrical output furnished by -The California 

Oregon fower Co.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

280 

265 

270 

278 

273

274 

281 

287 

277 

281

290 

288 

282 

273 

287

281 

285 

284 

282 

280

278 

277 

267 

285 

282

280 

281 

282 

300 

273 

277

Nov.

274 

274 

296 

284 

284

283 

281

284 

284 

270

268 

272 

270 

259 

264

254 

268 

267 

259 

276

271 

271 

270 

278 

271

278 

264 

262 

275 

269

Dec.

278 

261 

268 

269 

267

270 

265 

267 

275 

275

283 

280 

283 

285 

273

264 

272 

264 

262 

262

242 

265 

261 

261 

260

265 

264 

255 

265 

269 

265

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Maro 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Jan.

267 

269 

267 

265 

267

264 

269 

268 

270 

263

261 

269 

270 

269 

272

273 

272 

271 

273 

270

274 

273 

273 

274 

274

274 

272 

274 

272 

273 

273

Feb.

274 

272 

272 

269 

269

269 

272 

269 

269 

270

270 

268 

270 

270 

273

270 

273 

273 

271 

277

277 

273 

293 

290 

273

276 

277 

281

bar. ....................................

lendar year 1948

uarv

ter year 1948-49 .......................

Mar.

283 

283 

274 

276 

279

275 

279 

281 

282 

288

284 

291 

293 

270 

107

96 

273 

113 

12 

127

285 

294 

292 

303 

299

272 

277 

277 

278 

277 

280

Apr.

Seeondfoot-days

8,680 

8,191 

8,295

77,217

8,375 

7,660 

7,800 

8,497 

8,411 

8,292 

8,388 

8,518 

7,998

99,105

278 

279 

286 

281 

285

284 

281 

281 

286 

287

286 

287 

291 

291 

286

294 

294 

294 

297 

281

281 

281 

281 

286 

282

280 

268 

274 

268 

267

May

268 

274 

,273 

274 

277

275 

272 

269 

273 

276

274 

277 

275 

274 

278

273 

280 

278 

271 

274

275 

275 

246 

274 

275

275 

269 

271 

218 

272 "276

Maximum

300 

296 

285

311

274 

293 

303 

297 

280 

281 

284 

284 

279

303

June

271 

276 

276 

276 

275

280 

277 

280 

278 

281

280 

275 

277 

276 

278

278 

276 

278 

278 

275

278 

274 

276 

273 

274

278 

273 

276 

273 

276

Minimum

July

277 

279 

274 

274 

274

269

269 

268 

268 

268

266 

265 

268 

276 

274

 ill 

271 

274 

274 

270

269 

259 

267 

265 

207'

282 

277 

284 

280 

274 

279

265 

259

242

0

261 

268 

12 

267 

218 

271 

207 

267 

257

12

Aug.

276 

279 

276 

276 

276

273 

279 

279 

279 

275

284 

275 

280 

275 

275

279 

274 

276 

276 

274

272 

273 

272 

272 

272

268 

267 

267 

273 

272 

274

Mean

280 

273 

268

211

270 

274 

252 

233 

271 

276 

271 

275 

267

272

Sept.

274 

279 

276 

273 

268

268 

268 

268 

267 

266

265 

266 

265 

267 

262

269 

266 

268 

265 

268

268 

265 

265 

262 

263

263 

257 

257 

267 

263

Runoff In 

acre-feet

17,220 

16,250 

16,450

153,200

16,610 

15,190 

15,470 

16,850 

16,680 

16,450 

16,640 

16,900 

15,860

196,600
KLAMATH RIVER BASIN 439

Lost River diversion canal near Olene, Oreg.

Location.- Staff gage above and below head gates at intake of canal at Lost River Dam, 

lat. 42°09'., long. 121°40'., in SWtr sec, 29, T. 39 S., R. 10 E., 4 miles southwest of 

Olene.

Records available.- May 1912 to September 1949.

Average discharge.- 33 years (1912-15, 1919-49), 128 second-feet.

Extremes.- Maximum daily discharge during year, 703 second-feet Feb.. 22; no flow at times. 

IFT2-49: Maximum daily discharge, 1 4 280 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 R'iver to aid in 

reclamation of bed of Tule Lake. Discharge includes water occasionally wasted from "C" 

canal flume below intake. At times direction of flow is reversed and water diverted 

from Klamath River into Lost River. (See record for Diversion from Klamath River to 

Lost River near Olene).

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 '22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

242 

226 

215 

174 

192

196 

192 

174 

153 

132

124 

132 

128 

132 

133

134 

125 

212 

12O 

116

109 

112 

100 

103 

107

103 

101 

102 

96 

112 

116

114 

94 

122 

132

114

108 

107 

112 

110 

107

107 

105 

104 

102 

111

107 

116 

119 

122

132

122 

118 

117 

106 

111

111 

113 

109 

107 

104

108 

99 

113 

1O8 

100

109 

104 

173 

109 

104

89 

138 

167 

188 

177

167 

143 

137 

137 

137

127 

130 

114 

89 

88

89 

102 

111 

97 

105 

111

110 

124 

116 

107 

99

100 

98 

98 

94 

89

104 

125 

154 

162 

174

177 

181 

177 

176 

178

177 

204 

185 

189 

182

175 

165 

171 

172 

177 

176

171 

134 

116 

103 

96

92 

91 

99 

1O2 

100

94 

94 

95 

1OO 

89

104 

102 

103 

114 

170

347 

337 

505 

605 

634

655 

7O3 

690

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 194E

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

ter year 1948-49 .......................

628 

593 

588 

556 

542

550 

546 

482 

412 

372

344 

348 

361 

362 

343

342 

39O 

468 

557 

566

494 

452 

410 

427 

312

290 

228 

196 

134 

76 

6

Secondfoot -days

4,322 

3,363 

3,770

27,231

4,616 

6,645 

12,375 

0 

5,704 

1,188 

0 

0 

O

41,983

May

0

o 

o 

o 

o

83 

124 

92 

171 

212

218 

225 

218 

23O 

232

278 

304 

292 

331 

343

372 

354 

319 

313 

285

252 

184 

101 

68 

53 

50

Maximum

242 

132 

188

313

2O4 

703 

628 

0 

372 

265 

0 

0 

0

703

June

191 

265 

248 

245 

184

55 

0 

O 

O 

0

0 

0 

0 

O 

O

O 

0 

0 

0 

o

o 

o 

o

0 

0

0 

0 

0 

0

o

July

Minimum

96 

94 

88

O

89 

89 

6 

0 

O 

O 

0 

0 

0

O

Aug.

Mean

139 

112 

122

74.4

149 

237 

399 

0 

184 

39.6 

0 

O 

0

 115

Sept.

Runoff In 

' acre-feet

8,570 

6,670 

7,480

54,020

9,160 

13,180 

24,550 

O 

11,310 

2,360 

0 

0 

0

83,280
440 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°44', in 

SWt sec. 30, T. 39 S,, R. 10 E., 5 miles southwest of Olene.

Records available.- April 1931, when diversion began, to September 1949. 

Average discharge.- 19 years, 35.9 second-feet.

Extremes.- Maximum daily discharge during year, 425 second-feet June 17; no flow at times. 

T9U1-49: Maximum daily discharge, 564 second-feet Apr. 13, 1933; no flow at times.

Remarks.- Records fair. Discharge computed from daily record of gate openings and gage 

readings at wasteway. Canal was built to divert water from Lost River to Klamath River 

and thereby aid in reclamation of bed of Tule Lake. {See record for Lost River diversion canal near Olene.) Beginning in April 1931, water has been diverted at times from 

Klamath River and released into drain which empties into Lost River, from which it is 

rediverted for irrigation of lands near Tule Lake.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1943 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

23 

29 

30 

31

Oct.

Month

Octo 

Hove

Deee

Ca

Janu 

Febri 

Marc 

Apr!

MAV

June 

July 

Augu 

Sept

Wa

lendar year 1948 

Etry

ter year 1948-49 .......................

0

0 

0 

0 

0

0 

0 

0

0 

0

0

0 

0 

0 

0

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

31

47 

46 

44 

43 

86

168 

212 

201 

208 

217

216 

217 

217 

218 

218

218 

218 

218 

185 

168

168 

167 

167 

167 

168

151 

138 

136 

136 

136

Secondfoot -days

 0 

0 

0

10,129

0 

0 

31 

4,899 

642 

5,579 

3,411 

0 

0

14,562

May

160 

173 

175 

113 

21

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0 

0

Maximum

0 

0 

0

430

0 

0 

31 

218 

175 

425 

254 

0 

0

425

June

0.

0 

0 

0 

0

0 

0 

0 

0

0

44 

168 

245 

315 

380

421 

425 

396 

380 

342

270 

247 

272 

306 

239

201 

146 

226 

253 

253

July

216 

153 

105 

83 

89

102 

111 

129

107 

184

159 

45 

81 

238 

254

222 

191 

155 

136 

136

100 

73 

33 

53 

59

33 

33

33 

-33 

33 

32

Minimum

0 

0

0

0

0 

0 

0 

43 

0 

0 

32 

0 

0

0

Aug.

Mean

0

0 

0

27.7

0 

0 

1.0 

163 

20.7 

186 

110 

0 

0

39.9

Sept.

Runoff in 

acre-feet

0 

0 

0

20,080

0 

0 

61 

9,720 

1,270 

11,070 

6,770 

0 

0

28,890
KLAMATH RIVER BASIN 441

Pall Creek at Copco, Calif.

Location.- Water-stage recorder, lat. 41°58', long. 122°22', In NE£ sec. 36, T. 48 N., R 

b M., J.,500 feet upstream from mouth and 0.8 mile south of Fall Creek power plant and 

Coped post office. Prior to Aug. 24, staff gage at same site and datum.

Records available.- July 1928 to September 1949. 

Average discharge.- 21 years, 34.7 second-feet.

Extremes.- Maximum discharge observed during year, 182 second-feet Feb. 22 (gage height, 

2.42 reet), by slope-area method; minimum observed, 29 'second-feet July 21.

1928-49: Maximum discharge observed, 350 second-feet Jan. 7, 1948 (gage height, 3.22 

feet), from rating' curve extended above 60 second-feet on basis of slope-area determination at gage height 2.42 feet; minimum observed, 12 second-feet May 21, 1941 (gage 

height, 0.76 foot), from rating curve extended below 28 second-feet; minimum dally, 24 

second-feet on many days during June to September'1937.

Remarks.- Records fair. Gage read once dally Oct. 1 to Aug. 23. One diversion above 

station for Irrigation. Occasional diurnal fluctuation caused by power plant and fish 

ponds half a mile above station.

Cooperation.- Gage readings furnished by The California Oregon Power Co.

Rating table, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet) (Backwater from leg Dec. 3-5)

1.1 23 1.5 59 

1.2 31 1.7 80 

1.3 4CJ 2.0 117 

1.4 49

Discharge, In seoond-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

26 

29 

30 

31

Oct.

32 

32 

33 

36 

33

33 

33 

a33 

33 

32

32 

32 

33 

32 

33

33 

32 

32 

32 

32

32 

33 

31 

32 

32

32 

32 

32 

32 

32 

32

Nov.

35 

32 

34 

32 

33

33 

32 

33 

32 

33

a33 

33

ass

33 

36

34 

33 

33 

35 

35

34 

34 

34 

34 

35-

35 

35 

35 

35 

36

Dee.

35 

36 

36 

36 

35

35 

35 

36 

36 

36

42 

92 

45 

36 

35

35 

33 

33 

33 

33

32 

32 

31 

31 

31

31 

31 

31 

31 

31 

a31

Jan.

a31 

31 

31 

31 

31

31 

31 

31 

31 

30

 30 

30 

30 

30 

31

31 

31 

31 

30 

30

32 

31 

31 

30 

30

30 

30 

31 

31 

30 

30

Feb.

30 

30 

30 

30 

30

30 

30 

30 

a51 

32

33 

34 

31 

32 

33

33 

33 

36 

43 

39

39; 

108- 

69 

55,

61

55 

53 

53

Month

Octo 

Move 

Dece

Ca

Janu 

Fetor 

Marc 

Apr!

Mav

June 

July 

Augu 

Sept

Wa

her. ....................................

lendar year 1948

ter year 1948-49 .......................

Mar.

49 

49 

48 

46

43

44 

44 

44 

44 

a46

47 

45 

45 

47 

49

51 

52 

54 

55 

57

57 

- 55

 0 S 

>-* 49

55 

55 

56 

51 

53 

52

Apr.

53 

53 

a52 

51 

52

52 

a52 

52 

52 

52

51 

51 

51 

51 

48

46' 

46 

45 

45 

45

43 

42 

41 

40 

39

39 

38 

38 

38 

37

Secondfoot-days

1,005 

1,014 

1,116

13,862

949 

1,143 

1,542 

1,395 

1,084 

919 

949 

963 

1,025

13,104

May

38 

47 

38 

36 

36

36 

35 

35 

36 

35

35 

35 

35 

35 

35

35 

35 

35 

34 

a34

33 

33 

33 

33 

33

33 

34 

34 

33 

33 

32

Maximum

36 

36 

92

193

32 

108 

57 

53 

47 

32 

31 

34 

36

108

June

32 

32 

32 

32 

31

31 

31 

31 

31 

31

31 

31 

31 

30 

30

30 

30 

30 

30

aso

30 

30 

30 

30 

30

30 

30 

30 

30 

32

July

31 

31 

31 

31 

31

31 

31 

31 

30 

30

30 

31 

31 

30 

a30

30 

31 

30 

30 

30

29

31 

31 

30 

31

31

31 

31 

a31 

a31 

31

Aug.

30 

31 

30 

30 

a30

a30 

30 

31 

30 

30

30 

a30 

30 

30

30

30 

30 

30

aso 

a30

30 

30 

30 

33 

34

34 

34 

34 

34 

34 

34

Minimum Mean

31 32.4 

32 33.8 

31 36.0

30 37. S

30 30.6 

30 40.8 

43 49.7 

37 46.5 

32 35.0 

30 30.6 

29 30.6 

30 31.1 

34 34.2

29 35.9

Sept.

34 

34 

34 

34 

34

34 

34 

34 

35 

35

34 

34 

34 

34

34

34 

34 

34 

34 

34

34 

34 

34 

34 

34

34 

36 

35 

34 

34

Runoff In 

aore-feet

1,990 

2,010 

2,210

27,490

1,880 

2,270 

3;060 

2,770 

2,150 

1,820 

1,880 

1,910 

2,030

25,980

a Ho gage-height recordj discharge Interpolated.
442 KLAMATH RIVER BASIN

Beaver Creek near Lilyglen, Oreg.

Location.- Water-stage recorder, lat. 42°13', long. 122°22', in SW£ sec. 33, T. 38 S., R.

 4 E., 1 mile downstream from Willow Creek and 7 miles southeast of former post office

of Lilyglen. Former gage at site I mile upstream.

Drainage area.- 30.3 square miles, 29.9 square miles (revised) at former site. 

Records available.- October- 1948 to September 1949 and April 1916 to June 1919 (fragmentary)

 at site about 1 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 Asnland in reports of State engineer.

Extremes.- Maximum discharge during year, 241 second-feet Apr. 11; maximum gage height,

 4.71 I'eet Feb. 26 (ice Jam); no flow Aug. 14 to Sept. 8, Sept. 20-25.

1916-19, 1930-31, 1948-49: Maximum discharge, 525 second-feet Mar. 24 or 25, 1919;

 . maximum gage height, that of Feb. 26, 1949; no flow at times.

Remarks.- Records good except those for Nov. 15 to Mar. 20, which are poor. No large 

diversion upstream.

Rating table, water year 1948-49, except periods of loe effect

(gage height. In feet, and discharge, In second-feet)

(Shifting-control method used Oct. 7-19)

1.1 0 1.7 2.2 2.4 50 

1.2 .1 1.8 3.9 2.6 85 

1.3 .2 1.9 6.8 2.8 130 

1.4 .4 2.0 11 3.0 190 

1.5 .7 2.1 18 3.1 228 

1.6 1.2 2.2 27

Discharge, In second- feet, water year October 1948 to September 1949

Day

1 

2 

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

aO.5 

a.5 

a.5 

a.5 

a.5

a.5 

.4 

.4 

.4 

.4

.6 

.7 

.7 

.7 

.7

.6 

.6 

.6 

.7 

.7

.7 

.7 

.8 

1.1 

1.1

1.0 

.8 

.9 

1.1 

1.4 

2.4

Nov.

6.2 

5.9 

16 

7.2 

3.9

3.6 

2.9 

2.7 

2.7 

1.9

1.8 

1.8 

1.8 

1.7 

4.5

8.9 

13 

7.6 

5.1 

6.8

7.6 

6.2 

6.2 

20 

17

7.6 

8.1 

8.1 

10 

11

Dec.

8.5 

a8 

a9 

8.9 

5.1

4.5 

5 

9.7 

8.1 

6.8

. 10

a7 

a7

a7 

a7 

6.8 

6.8 

6.5 

6.2

Jan.

5.6 

5.6 

5.4 

*5.1 

4.5

3.9 

3.9 

3.9 

3.9 

3.7

3.2 

2.9 

2.7 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.4

2.4 

2.4 

2.4 

2.4 

2.2

2.2 

2.2 

2.2 

2.1 

2.2 

2.2

Feb.

2.2 

2.2 

2.2 

2.2 

2.1

2.1 

2.1 

2.1 

2.1 

2.1

2.0 

2.1 

2.1 

2.1 

2.1

2.2 

2.5 

2.7 

2.7 

2.9

3.2 

3.6 

4.8 

10 

20

45 

50 

55

Month

Ooto 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Aprl 

May

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

uary

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

ter year 1948-49 .......................

Mar.

45 

42 

42

47 

47

46 

43 

41 

40 

39

52 

64 

59 

67 

90

100 

110 

115 

110 

105

99 

77 

65 

59 

59

67 

81 

64 

6Q

*k

Apr.

Seoondfoot-days

23.2 

207.8 

257.9

-

96.6 

236.4 

2,062 

4,991 

1,877 

197.7 

9.2 

1.6 

2.2

9,962.6

Peak discharge (base, 150 sec. -ft.).- Apr. 11 (8 p.m.]

*69 

79 

85 

105 

125

138 

150 

168 

171 

184

205- 

22& 

213 

213 

209

22<j 

224 

226 

220 

209

201 

190 

184 

171 

152

138 

125 

144 

136 

115

May

115 

180 

138 

112 

99

91 

85 

81 

79

- 56\ 

71 

60 

54

46 

46 

60 

42 

38

39 

35 

28 

24 

21

19 

17 

2l 

22 

23 

27

Maximum

2.4 

20

-

5.6 

55 

115 

228 

180 

42 

.8 

.2 

.2

228

June

42 

24 

17 

13 

11

10 

9.3 

8.1 

6.8

.~~ 6.2 **;..4.8 

3.9 

3.4 

3.0

2.7 

2.7 

2.5

3.0 

3.4

3.2 

2.4 

1.8 

1.5 

1.2

1.1 

1.1 

1.1 

1.0 

.9

July

0.8 

.8 

.6 

.6 

.6

.5 

.5

.4 

.4 

.4

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.1 

.1

il 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2 

.2

Aug.

0,2 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.2 

.1 

0

0 

0 

0 

0 

0

0

o

0 

0 

0

0 

0 

0 

0 

0 

0

Sept.

0 

0 

0 

0 

0

0 

0 

0 

.2

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

0 

0 

0 

0

.1

.1 

.1

.2 

.2 

.2

mnlmum Hean *£«*£

0.4 0.75 46 

1.7 6.93 412 

8.32 512

- .

2.1 3.12 192 

2.0 8.44 469 

39 66.5 4,090 

69 166 9,900 

17 60.5 3j720 

.9 6.59 392 

.1 .30 18 

0 .05 r 3iZ 

0 .07 4.4

0 27.3 19,760

241 sec. -ft.; May 2 (9:3O a.m.) 217 see, -ft.

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of weather records and records for Dead 

Indian Creek near Lilyglen and South Pork Rogue River above Imnaha Creek, near Prospect.

Note.- Stage-discharge relation affected by Ice Dec. 6, 7, 11-23, Dec. 28 to Mar. 9, Mar. 15-20.
KLAMATH RIVER BASIN 443

Keene Creek at Hyatt Prairie, near Ashland, Oreg.

Location.- Water-stage recorder, lat. 42°10', long. 122°29', in SW£ sec. 16, T. 39 S., R. 

3 E., quarter of a mile upstream from Burnt Creek, half a mile downstream from Hyatt 

Prairie Reservoir Dam, and 12 miles east of Ashland.

Prainage area.- 12.4 square miles.

Records available.- November 1948 to September 1949. April 1917 to June 1922 (fragmentary) at site half a mile upstream; records not equivalent owing to reservoir losses.

Extremes.- Maximum discharge during period November 1948 to September 1949, 74 second-feet 

July 29 (gage height, 3.19 feet); minimum, 0.2 second-foot on many days.

1917-22, 1948-49: Maximum discharge, 315 second-feet (estimated) Apr. 21, (corrected) 

1922 (gage height, 4.72 feet, backwater from ice, site, and datum then in use); no flow 

at times.

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

are poor. Regulation since December 1922 by Hyatt Prairie Reservoir (capacity, 16,180 

acre-feet). Water used for irrigation near Ashland and Talent.

Rating tables, Nov. 1, 1948, to Sept. 30, 1949, except periods of Lee effect 

(ga'ge height, in feet, and discharge, in second-feet)

Nov. 10 to May 16 June 15 to Sept. 30

1.15 .2 1.75 .2 2.2 2.4 2.9 36 

1.2. .5 1.8 .3 2.4 5.4 3.0 48 

1.3 1.2 1.9 .5 2.6 10 3.1 61 

1.4 2.0 2.O .9 2.7 15 3.2 76 

1.5 3.0 2.1 1.5 2.8 25

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23 

24 

25

26 

27 

28 

89 

30 

31

Oct.

-

Nov.

ao.2 

a. 2 

a. 2 

a. 2 

a. 2

a. 2 

a. 2 

a. 2 

a. 2 

.2

.2 

.2 

.2 

.2 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.3 

.3

.2 

.2 

.2 

.2 

.2

Dec.

0.2 

.3 

.3 

.2 

.2

.2 

.3 

.3 

.3 

.3

.4 

.4 

.4 

.3 

.3

.3 

.3 

.3 

.3 

.3

.3 

*b.3 

b.3 

b.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Jan.

0.3 

.2 

b.2 

b.2 

b.2

b.2 

.2 

.2 

b.2 

b.2

b.2 

b.2 

b.2 

b.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Feb.

0.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

.2 

*.2 

.2 

.2 

.2

.2 

.3 

.4 

.3 

.4

.5 

.5 

.6

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Hare 

Apr! 

May.

June 

July 

Augu 

Sept

Th

lendar year

e period. ...............................

Mar.

0.5 

.5 

.4 

.6 

.6

.6 

.6 

.6 

.6

.7

.7 

.7 

.7 

.7 

.7

.8 

.9 

1.1 

1.1 

1.0

1.0 

.9 

.9 

.8 

.8

1.0 

1.4 

1.0 

1.0 

1.1 

1.1

Apr.

1.2 

1.4 

1.4 

1.8 

2.0

2.2 

2.3 

2.3 

2.6 

2.7

2.8 

3.0 

2.8 

2.8 

2.7

2.8 

3.0 

,3.0 

2.8 

2.7

2.6 

d2.5 

d2.4 

d2.3 

d2.2

d2.1 

d2.0 

d2.4 

d2.1 

dl.8

Secondfoot-days

6.4 

8.4 (

-

6.3 

7.2 

25.1 

70.7 

72.6 

902 

2,212 

1,910 

799.3

-

May

dl.7 

d2.7 

d2.4 

d2.0 

dl.8

dl.6 

dl.5 

dl.5

1.4 

1.4

1.2 

1.2 

1.1 

1.1 

1.0

1.0 

al 

al 

al 

al

al 

al 

al 

al 

al

al 

a3 

as 

a9 

a9 

a9

Maximum

0.3 

.4

-

.3 

.6 

1.4 

3.0 

9 70 

73 

72 

49

-

June

a8 

a 4 

al 

al 

al

a 4 

alO 

alO 

al2

314

a!4 

a!4 

a!4

al4 

14

23 

35 

35 

35 

35

35 

46 

51 

64 

70

70 

70 

70 

70 

58

Minimum

July

73 

73 

72 

73 

72

72 

72 

72 

72 

72

72 

72 

72 

72 

70

70 

70 

70 

68 

68

63 

68 

68 

72 

73

73 

73. 

73 

73 

72 

72

Aug.

72 

70 

70 

68 

68

68 

68 

63 

67 

67

67 

67 

66 

66 

66

66 

66 

66 

a66 

a66

a64 

57 

a53 

a53 

a53

a52 

a52 

a 52 

a 46 

40 

40

Sept.

40 

37 

40 

40 

40

40 

40 

46 

49 

49

49 

48 

48 

48 

48

46 

40 

18 

5.7 

2.3

1.7 

1.2 

4.1 

4.9 

3.7

3.7 

3.7 

1.9 

.2 

.2

 ,._ Runoff In "e*n acre-feet

0.2 0.21 13 

.2 .27 17

-

.2 .20 12 

.2 .-26 14 

.4 .81 50 

1.2 2.36 140 

1 2.34 144 

1 30.1 1,790 

68 71.4 4,390 

40 61.6 3,790 

.2 26.6 1,590

11,950

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Keene Creek Canal near Ashland 

and record of release from reservoir.

b Stage-discharge relation affected by ice.

d Doubtful gage-height record; discharge computed on basis of records for Beaver Creek nesr Lilyglen. _ .-*
144 KLAMATH RIVER BASIN

Keene Creek Canal near Ashland, Oreg.

Location.- Water-stage recorder, lat. 42°09', long. 122°30', in NW£ sec. 89, T. 39 S., R. 

3 E., 400 feet upstream from Cascade Divide, 2 miles north of Ashland-Klamath Palls 

highway, and 16 miles southeast of Ashland.

Records available.- June 1923 to September 1949 (discontinued), some years, Incomplete.

Extremes.- Maximum daily discharge during year, 80 second-feet June 27-29; no flow at 

times,

1923-49: Maximum daily discharge, 82 second-feet Aug. 2, 1938, July 23, 1939; no 

flow at times.

Remarks.- Records poor. Water released rrom Hyatt Prairie Reservoir is diverted by this 

canal from Keene Creek In SE£ sec. 20, T. 39 S., R. 3 E., and discharged into Emigrant 

Creek Basin for irrigation of lands near Ashland and Talent. Stored water released 

from reservoir May 27 to Sept. 30.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct. ' Nov. Dec.

Month

Octo 

Hove 

Dece

Ca

Jam* 

Febr 

Marc 

Apr! 

Hay 

June 

July 

Augu 

Sept

Th

Jan. Feb.

ber. ....................................

lendar year

.

Mar. Apr.

Seeondfoot-days

101 

931

2,187 

1,907 

738

-

May

5 

4

4 

4 

4 

4 

4

4 

3 

3 

3 

3

3 

3

2 

2 

2

2 

3 

9 

10 

10 

10

Maximum

10 

80 

78 

68 

43

-

June

9 

3 

2 

2 

2

3 

10 

alO

312

14 

a!4

314

a!4

314

al*

a20 

a30 

335 

335 

335

a35 

a40 

a50 

a60 

a70

a75 

a80 

80 

80 

69

July

Minimum

2 

2 

66 

39 

2

-

7-7 

78 

78 

74 

74

74 

72 

72 

73 

73

70 

71 

71 

68 

68

69 

69 

67 

68 

69

66 

67 

67 

70 

69

70 

71 

68 

68 

68 

68

Aug.

65 

65 

66 

66 

67

67 

67 

68 

68 

68

67 

67 

67 

67 

67

67 

66 

66 

66

65

65 

61 

55 

54

54

54 

53 

52 

48 

40 

39

Mean

4.4 

31.0 

70.5 

61.5 

24.6

-

Sept.

38

35 

36 

37 

37

36 

36 

a40 

a43 

a43

a43 

a42 

42 

42

41

40 

36 

20 

9

4

3 

2 

2 

6

5

5 

5 

5 

3 

2

Runoff in 

acre -feet

200 

1,850 

4,340 

3,780 

1,460

11,630

a No gage-height record; discharge computed on basis of recorded range in stage and records for 

Keene Creek at Hyatt Pralriei, near Ashland.
KLAMATH RIVER BASIN 445

Shasta River near Yreka, Calif.

Location,- Water-stage recorder, lat. 41°49', long. 122°35< , in NE£ sec. 24, T. 46 N., R. 

y 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 1949.

Average discharge.- 12 years (1933-41, 1945-49), 151 second-feet.

Extremes.- Maximum discharge during year, 568 second-feet Feb. 10 {gage height, 4.15 feet);

. minimum, 8.6 second-feet Aug. 1.

1933-41, 1944-49: Maximum discharge, 2,440 second-feet Feb. 29, 1940 (gage height, 

6.72 feet), from rating curve extended above 900 second-feet by logarithmic plotting 

and velocity-area studies; minimum, 3.4 second-feet Aug. 13, 1939, when about 2 secondfeet were being diverted around gage.

Remarks.- Records good except those for June 15-19, which are fair. Flow partly regulated 

by reservoir above station. Many diversions above station for irrigation.

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2

3

4 

5

& 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

120 

140 

146 

159 

164

170 

170 

170 

167 

175

187 

192 

187 

187 

187

184 

181 

181 

181 

192

175 

175 

175 

175 

173

175 

175 

175 

178 

164 

167

Mov.

184 

198 

2O9 

218 

212

206 

201 

ZO1 

201 

209

212 

212 

209 

209 

218

224 

224 

221 

227 

224

218 

212 

206 

206 

203

203 

203

201 

206 

206

. Dec.

206 

215 

248 

245 

239

245 

325 

418 

345 

302

284 

329 

345 

296 

263

236 

230 

227 

221 

224

221 

206 

195 

187 

187

195 

198 

201 

206 

212 

203

Jan.

218 

' 218 

201 

192 

187

184 

187 

187 

184 

187

178 

178 

184 

187 

184

181 

181 

181 

181 

178

- 181 

181 

181 

175 

173

173 

173 

173 

167 

167 

173

Feb.

173 

175 

181 

187 

187

195 

181 

195 

198 

308

322 

244 

205 

202 

208

226 

238 

250 

247 

247

247 

306 

435 

341 

306

296 

282 

274

Month

Ooto 

Hove 

Decs

Ca

Janu 

Pebr 

Marc 

Aprl 

May

June 

July 

Augu 

Sept

Wa

mber. ...................................

lender year 1948

ter year 1948-49 .......................

Peak discharge (base, 3OO sec. -ft.).- Dec.

Mar.

250 

235 

232 

229 

220

211 

205 

205 

202 

199

202 

199 

196 

199 

199

205 

199 

199 

202 

205

205 

2O2 

193

190 

185

182 

184 

182 

174 

163 

163

Apr.

153 

144 

133 

133 

129

123 

127 

144 

127 

109

102 

105 

101 

96 

92

82 

80 

99 

83 

75

81 

95

as

78 

78

70 

63 

66 

76 

68

Secondfoot-days

5,347 

6,283 

7,654

59,324

5,675 

6,856 

6,216 

3,000 

2,859 

1,993 

621.6 

826.6 

2,658

49,989.2

7 (9 p.m.)

May

64 

78 

121 

102 

87

65 

63 

68 

69 

87

91 

83 

76 

99 

119

112 

86 

88 

76 

69

76 

73 

70 

68 

76

87 

87 

84 

110 

208 

217

Maximum

192 

227 

418

828

218 

435 

250

153 

217 

238 

38 

51 

127

435

466 sec. -ft

June

238 

208 

196 

163 

131

98 

121 

117 

82 

56

43 

37 

34 

33

26

25 

22 

24 

33 

35

35 

45 

35 

30 

22

22 

22 

21 

20 

19

July

30 

38 

33 

22 

21

34 

34 

24

17 

15

16 

21 

22 

19 

21

14 

13 

9.6 

12 

21

27 

26 

15 

15 

20

17 

17 

14 

13 

11 

10

Minimum

120 

184 

187

18

167 

173 

163 

63 

63 

19 

9.6 

9.0 

19

9.0

j Dec. 13

Aug.

9.6 

9.0 

21 

21 

17

14 

27 

51 

35 

31

19 

21 

26 

27 

27

30 

34 

35 

34

30

33 

34 

27 

27 

26

26 

33 

32 

27 

32 

21

Mean

172 

2O9 

247

162

183 

245 

201 

1OO 

92.2 

66.4 

20.1 

26.7 

88.6

137

Sept.

19 

31 

50 

47 

47

55 

69 

106 

96 

87

75 

81 

87 

83 

85

9O 

96 

103 

106 

108

1O3 

111 

116 

116 

113

127 

108 

111 

119 

113

Runoff In 

acre-feet

10,610 

12,460 

15,180

117,700

11,260 

13,600 

12,330 

5,950 

5,670 

3,950 

1,230 

1,640 

5,270

99 150

(1 a.m.) 379 sec. -ft.;

Feb. 10 [7 p.mT) 568 sec.-ft.; Feb. 23 (7:30 a.m.) 487 sec.-ft.
446 KLAMATH RIVER BASIN

Scott River near Fort Jones, Calif.

Location.- Water-stage recorder, lat. 41°38'35", long. 123°00'3S", in NW£ sec. 28, T. 44 

JM. , 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 Engineers).

Drainage area.- 656 squara miles.

Records available.- December 1941 to September 1949.

Extremes.- Maximum discharge during year, 2,470 second-feet May 13 (gage height, 7.03 

reetj; minimum, 42 second-feet Sept. 22-24.

1941-49: Maximum discharge, 7,340 second-feet Jan. 28, 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. Many small diversions for irrigation in Scott Valley during 

summer.

Rating tables, water year 1948-49 (gage height, In feet,

and discharge. In aecond-feet) 

(Shifting-control method uaed Dec. 13-15)

6ct. 1 to Dec. 12 Dec. 13 to Sept. 3O

1.6 73 2.7 218 1.3 40 2.0 108 4.4 745 

1.8 87 3.1 316 1.4 47 2.4 16O 5.0 1,O70 

2.0 105 3.5 430 1.5 56 2.8 229 6.0 1,710 

2.2 128 3.9 565 1.6 64 3.3 343 6.9 2,370 

2.4 158 1.8 84 3.8 500

Discharge, In aecond-feet. Mater year October 1948 to September 1949

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

Z6 

27

28 

29 

30 

31

Oct.

76 

77 

78 

84 

87

93 

92 

89 

88 

87

92 

100 

104 

99 

96

95 

95 

97 

95 

93

92 

91 

91 

92 

92

88 

86 

86 

87 

88 

90

Nov.

97 

160 

200 

216 

172

152 

135 

124 

120

116

114 

114 

108 

105 

107

134 

162 

152 

156

171

147 

145 

139 

139

141

138 

132 

128

134 

134

Dec.

129 

136 

171 

172 

188

234 

290 

562 

424 

349

343 

557 

765 

563 

434

362 

328 

298 

279 

270

253 

229 

210 

196 

212

214 

206 

197 

196 

20fc 

199

Jan.

210 

223 

205 

190 

174

174 

179 

179 

168 

166

162 

170 

186 

160 

157

156

157 

156 

153 

153

153 

153 

146 

141 

144

177 

141 

141 

140 

140 

138

Feb.

138 

140 

141 

143

141

147 

146 

146 

145 

182

618 

396 

282 

243 

225

245 

284 

298 

308 

306

323 

815 

1,300 

845 

714

678 

696 

651

Month

Octo 

Nove 

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948 

ary

ter year 1948-49 .......................

Mar.

615 

615 

647 

615 

559

518 

482 

451 

437 

427

427 

421 

409 

403 

421

559 

. 657 

1,270 

1,380 

1,120

933 

815 

755 

655 

595

555 

539 

539 

521 

504 

493

Apr.

476 

472 

468 

476 

507

571 

682 

820 

906

1,080

1,420 

1,640 

1,470 

1,340 

1,310

1,490 

1,810 

1,920 

1,700 

1,410

1,360 

1,450 

1,500 

1,400 

1,220

1,070 

1,040 

1,120 

1,080 

922

Secondfoot-daya

2,800 

4,192 

9,172

179,766

5,092 

10,696 

19,337 

34,130 

40,562 

13,351 

3,188 

1,856 

1,334

145,710

Peak discharge (baae, 1,600 sec. -ft.).- Apr. 12 (9:30

May

938 

1,620 

1,540 

1,230 

1,080

1,010 

1,060 

1,160 

1,260 

1,560

1,880 

1,930 2,300- 

2,270 

2,010

1,790 

1,540 

1,260 

1,100 

1,040

982 

922 

928 

955 

1,030

1,050 

1,020 

900 

1,080 

1,140 

977

Maximum

104 

216 

765.

6,510

£23 

1,300 

1,380 

1,920 

2,300 

966 

156 

72 

47

2,300

June

966 

835 

736 

700 

709

740 

750 

682 

603 

563

510 

. 482 

458 

421 

394

365 

333 

316 

298 

298

293 

277 

253 

235

218

205 

192 

184 

173 

162

July

156 

145 

140 

138 

134

132 

129 

126 

123 

119

115 

108 

101 

96 

97

95 

92 

92 

90 

89

88 

88 

85 

84 

80

78 

76 

74 

73 

73 

72

Aug.

72 

71 

70 

69 

68

66 

65 

64 

64 

63

62 

62 

72 

65 

61

61 

61 

60 

59 

57

56

52 

54 

54 

52

51

51 

50 

50 

47 

47

Minimum Mean

76 .90.3 

97 140 

129 296

72 491

138 164 

138 382 

403 624 

468 1,138 

900 1,308 

162 445 

72 103 

47 59.9 

42 44.5

42 399

a.m.) 1,730 aeo.-ft.j Apr. 18 (9:

Sept,

46 

46 

46 

45 

45

45 

43 

50 

46 

46

46 

47 

46 

45 

44

43 

43 

43 

44 

43

43 

42 

42 

42 

43

43 

44 

44 

44

45

Runoff In 

acre-feet

5,550 

8,310 

18,190

356,500

10,100 

21,220 

38,350 

67,700 

80,450 

26,480 

6,320 

3,680 

2,650

289,000

30 a.m.)
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 K., 0.5 mile east of Somesbar post office and 1.5 miles upstream from mouth. Altitude 

of gage, about 500 feet (from topographic map).

Drainage area.- 737 square miles.

Records available.- September 1911 to September 1915, October 1927 to September 1949.

Average discharge.- 23 years (1911-13, 1927-29, 1930-49), 1,530 second-feet.

Extremes.- Maximum discharge during year, 6,730 second-feet Feb. 22 (gage height, 6.97 

reet); minimum, 124 second-feet Sept. 24.

1927-49: 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 1948-49 (gage height, in feet,

and discharge, In second-feet) 

(Shifting-control method used Feb. 24 to Apr. 6)

Oct. 1 to Dec. 12 Dec. 13 to Sept. 30

2.9 196 3.2 360 4.2 1,430 2.7 110 3.8 970 

3.0 242 3.4 530 4.6 2,000 2.8 145 4.3 1,580 

3.1 296 3.8 940 5.1 2,800 2.9 190 4.9 2,480 

3.0 245 5.6 3,750 

3.3 470 6.4 5,440

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

237 

233 

242 

664 

645

416 

341 

296 

280 

269

315 

328 

296 

280 

274

258 

247 

242 

242 

237

233 

233 

228 

237 

242

233 

228 

224 

219 

224 

242

Nov.

784 

1,150 

1,310 

830 

578

485 

424 

376 

347 

328

315 

309 

296 

302 

675

746 

995 

685 

852 

841

655 

596 

587 

596 

587

549 

494 

512 

568 

503

Dec.

494 

549

863 

715 

1,030

1,070 

2,810 

3,000 

1,790 

1,670

2,720 

5,020 

4,220 

2,660 

1,990

1,650 

1,420 

1,840 

1,140 

1,090

1,040 

948 

382 

850 

893

840 

810 

770 

926 

948 

959

Jan.

1,160 

1,230 

1,100 

1,000 

937

926 

893 

882 

820 

740

830 

810 

760 

770 

700

650 

660 

660 

640 

600

620 

620 

580 

524 

551

570 

580 

524 

524 

524 

497

Feb.

515 

515 

524 

551 

533

570 

590 

560 

542 

1,160

1,960 

1,370 

1,100 

1,000 

937

915 

970 

1,060 

1,210 

1,330

1,450 

3,640 

5,260 

3,550 

2,910

2,870 

2,940 

2,910

Month

Octo 

Hove 

Dece

Ca

Janu 

Pebr 

Marc 

Apr! 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1948

ter year 1948-49 .......................

Mar.

2,700 

2,690 

2,590 

2,350 

2,160

1,990 

1,860 

1,760 

1,740 

1,680

1,660 

1,580 

1,570 

1,590 

1,900

2,590 

2,910

4,810 

4,900 

4,180

3,710 

3,350 

3,000 

2,700 

2,480

2,290 

2,280 

2,200 

2,110 

2,020 

1,930

Apr.

1,880 

1,880 

1,870 

1,930 

2,110

2,380 

2,670 

2,870 

3,050 

3,730

4,620 

4,620 

3,950 

3,710 

4,010

4,680 

5,070 

4.830 

4,290 

3,750

3,770 

1 3,990 

4,060 

3,590 

3,160

2,980 

3,030 

3,410 

3,020 

2,590

Secondfoot-days

8,885 

18,275 

47 , 007

641,407

22,892 

43,442 

77,280 

101,500 

102,440 

39,236 

11,788 

5,769 

4,252

482,766

May

3,000 

5,440 

3,970 

3,270 

3,030

3,020 3,260- 

3,370 

3,390 

4,370

5,020 

4,920 

5,350 

4,710 

4,350

3,890 

3,270 

2,690 

2,510 

2,510

2,420 

2,280 

2,380 

2,530 

2,820

2,850 

2,660 

2,290 

2,450 

2,260 

2,160

Maximum

664 

1,310 

5,020

22,800

1,230 

5,260 

4,900 

5,070 

5,440 

2,340 

590 

245 

168

5,440

June

2,340 

1,930 

1,760 

1,820

1,990

2,110 

2,080 

1,840 

1,620 

1,500

1,550 

1,520 

1,450 

1,380 

1,310

1,240 

1,070 

992 

992 

959

893 

860 

840 

810 

800

780 

730 

690 

660 

630

July

590 

580 

570 

551 

533

524 

497 

479 

470 

454

446 

422 

406 

382 

368

360 

338 

322 

315 

308

301 

287 

280 

273 

273

266 

252 

245 

240 

228 

288

Aug.

245 

240 

228 

218 

218

212 

212 

212 

206 

201

201 

196 

190 

190 

186

181 

181 

181 

176 

172

172

168 

163 

163 

163

158 

154 

150 

145 

145 

142

Minimum Mean

219 287 

296 609 

494 1,516

188 1,752

497 738 

515 1,552 

1,570 2,493 

1,870 3,383 

2,160 3,305 

630 1,308 

228 380 

142 186 

124 142

124 1,323

Sept.

138 

134 

134 

131 

131

131 

134 

145 

168 

154

150 

145 

142 

138 

138

138 

1S8 

138 

138 

134

131 

131 

128 

124 

138

163 

154 

163 

163 

158

Runoff in 

acre-feet

17,620 

36,250 

93,240

1,272,000

45,410 

86,170 

153,280 

201,300 

203,200 

77,820 

23,380 

11,440 

8,430

957,500

Peak discharge (base, 5,700 sec. -ft.). 

ec.-ft.; May 2 (10 a.m.) 6,130 sec.-ft.

- Dec. 12 (4:30 p.m.) 6,620 sec.-ft.; Feb. 22 (9 p.m.) 6,730
446 KLAMATH RIVER BASIN

Trinity River at Lewiston, Calif.

Location.- Water-stage recorder, lat. 4U°42', long. 122*48", In NE£ sec. 19, T. 33 N., R.

« w., at highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek. Datum

of gage is 1,794.10 feet above mean sea level, datum of 1929. 

Drainage area.- 724 square miles. 

Records available.- August 1911 to September 1949. 

Average discnarge.- 38 years, 1,532 second-feet. 

Extremes.- Maximum discharge during year, 15,700 aecond*feet Mar. 18 (gage height, 14.78

reet); minimum, 119 second-feet Sept. 24.

1911-49: Maximum discharge, 40,300 second-feet Feb. 28, 1940 (gage height, 20.8

feet), from rating curve extended above 13,000 second-feet; minimum, 23 second-feet

July 30, 1924. 

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

rair. Diversions above stations for irrigation, power, and placer mining.

Rating tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

4.9 

5.1 

5.4 

5.7 

6.1 

6.5 

6.8

Oct. 1 to Mar. 18 Mar. 19 to Sept. 30

193

229

290

360

464

580

695

7.0 

7.4 

8.0 

8.5 

9.0 

9.5 

10.0

79O 

1,050 

1,570 

2,080 

2,690 

3,420 

4,250

10.5 

11.0 

12.0 

13.0 

1-4.0 

14.4

5,170

6,150

8,400

10,800

13,400

14,600

4.3

4.5 

4.8 

5.2 

5.6

115

142

190

268

362

6.0 

6.5 

7.0 

7.5 

8.0

480

680

950

1,300

1,730

8.5

9.0

10.0

10.4

2,230

2,810

4,280

4,980

Note.- Same as preceding table above 10.4 

feeFI

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

227 

223 

318 

760 

590

461 

380 

336 

308 

290

294 

314 

294 

284 

280

273 

261 

252 

246 

240

237 

235 

233 

231 

235

233 

231 

225 

225 

225 

229

Nov.

580 

1,020 

790 

647 

515

453 

410 

375 

353 

336

322 

310 

3O5 

299 

360

415 

450 

392 

402 

418

388 

378 

395 

405 

408

385 

360 

346 

341 

329

Dec.

326 

331 

415 

388 

398

398 

440 

434 

429 

432

445 

634 

820 

635 

536

506 

492 

459 

429 

426

424 

388 

334 

331 

388

437 

421 

400 

395 

385 

378

Jan.

395 

392 

348 

301 

319

340 

350 

360 

h353 

a270

a280 

a300 

a310 

a310 

a3£0

h324 

a330 

a335 

a335 

a335

8320 

a310 

a300 

a290 

h2S6

a290 

a290 

a295 

a295 

a300 

a300

Feb.

3305 

308 

312 

326 

317

303 

290 

370 

348 

375

484 

415 

398 

398 

380

375 

388 

415 

456 

518

683 

3,460 

4,020 

2,320 

2,100

2,380 

2,760 

2,310

Month

Octo 

Hove 

Dece

Ca

Janu 

Febr 

Marc 

Aprl 

Mav

June 

July 

Augu 

Sept

Wa

Lendar year 1948

b. ......................................

ter year 1948-49 .......................

Mar.

2,090 

3,480 

3,940 

2,960 

2,290

1,930 

1,760 

1,600 

1,670 

2,060

3,690 

3,160 

2,600 

2,520 

4,290

6,030 

7,590 

14,500 

10,900 

7,390

5,170 

4,140 

3,410 

2,880 

2,580

2,440 

2,520 

2,620 

2,440 

2,350 

2,220

Apr.

2,200 

2,350 

2,440 

2,570 

2,890

3,290 

3,860 

4,350 

4,730 

5,420

6,570 

7,010 

5,870 

5,470 

5,730

6,700 

7,550 

7,620 

6,960 

5,710

6,410 

6,440 

6,770 

5,910 

5,000

4,590 

4,590 

4,750 

4,180 

3,560

Secondfoot-days

9,170 

12,887 

13,654

585,667

9,883 

27,534 

119,220 

151,490 

137,030 

48,463 

13,137 

5,848 

4,108

552,424

May

3,340 

4,660 

34,800 

a4,700 

34,600

a4,600 

4,540 

4,360 

4,400 

6,330

7,210 

6,850 

8,520 

6,790 

6,190

5,510 

4,550 

3,580 

3,150 

3,140

2,880 

2,690 

2,860 

3,130 

3,460

3,700 

3,480 

2,940 

3,660 

3,460 

2,950

Maximum

760 

1,020 

820

30,700

395 

4,020 

14,500 

7,620 

8,520 

2,800 

695 

262 

154

14,500

June

2,800 

2,490 

2,330 

2,370 

2,530

2,640 

2,590 

2,280 

2,080 

2,030

1,940 

1,860 

1,780 

1,690 

1,590

1,510 

1,320 

1,180 

1,140 

1,150

1,100 

1,050 

1,030 

974 

956

914 

846 

808 

755 

730

July

695 

676 

658 

635 

622

604 

574 

550 

528 

514

490 

470 

445 

424 

407

384 

368 

349 

336 

329

319 

312 

303 

296 

285

278 

270 

264 

260 

247 

245

Minimum

223 

299 

326

157

270 

290 

1,600 

2,200 

2,690 

730 

245 

151 

120

120

Aug.

262 

262 

245 

227 

219

218 

210 

208 

204 

201

197 

192 

190 

190 

188

185 

182 

180 

175

171

167 

163 

165 

183 

159

157 

156 

156 

154 

151 

151

Mean

296 

430 

440

1,600

319 

983 

3,846 

5,050 

4,420 

1,615 

424 

189 

137

1,514

Sept.

146 

142 

138 

134 

132

134 

136 

144 

151 

154

154 

152

144 

141

136 

135 

135 

132 

127

124 

124 

123 

120 

122

125 

131 

138 

142

144

Runoff In 

acre-feet

18,190 

25,560 

27,080

1,162,000

19,600 

54,610 

236,500 

300,500 

271,800 

96,120 

26,060 

11,600 

8,150

1,096,000

Peak discharge (base. 5,400 sec.-ft.).- Feb. 22 (8 p.m.) 7,050 sec.-ft.; Mar. 18 (10 to 11 a.m.) 

15,700 sec.-ftT; Apr. 12 (4*30 a.m.) 7,890 sec.-ft.; Apr. 18 (4:30 a.m.) 8,280 see.-ft.} Apr. 23 

(5 a.m.) 7,360 sec.-ft.; May 13 (6 a.m.) 9,980 sec.-ft.

a No gage-height record; discharge computed on basis of yeather records and records for Trinity 

River near Douglas City, Cottonwood Creek near Cottonwood, and Clear Creek near Igo.

h Computed from tape-gage reading.
KLAMATH RIVER BASIN * 

Trinity River near Douglas City, Calif.

Location.- Water-stage recorder, lat. 40°40', long. 122*59', in SW£ sec. 34, f, 33 N., R. 

iu »., 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 1949.

Extremes.- Maximum discharge during year, 22,500 second-feet Mar. 18 (gage .height, 20.65 

reet f, from rating curve extended above 9,100 second-feet by logarithmic plotting; 

minimum, 159 second-feet Sept. 20-27.

1944-49: Maximum discharge, 41,800 second-feet Jan. 7, 1948 (gage height, 30.00 

feet) from rating curve extended above 9,100 aecond-feet by logarithmic plotting; 

minimum, 93 second-feet Sept. 6, 1947.

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

Diversions above station for irrigation, power, and placer mining.

Rating tables, vater year 1948-49 (gage height, In feet, 

and discharge, in second-feet)

Oct. 1 to Nov. 2 Nov. 3 to Sept. 30

1.4 238 O.8 152 3.0 75O 9.O 5,070 

2.O 394 1.0 178 4.0 1,160 11.0 7,300 

2.8 668 1.4 252 5.0 1.73O 15.O 12.80O 

3.5 94O 1.9 376 7.0 3,25O 21.0 23,100 

4.0 1,170

Discharge, In second-feet, water year October 1948 to September 1949

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.

257 

252 

262 

686 

774

625 

493 

416

330

322 

335 

333 

317 

3O7

302 

291 

284 

276 

272

269 

264 

260 

260 

260

260 

257 

252 

250 

248 

248

Hov.

262 

1,15O 

882 

898 

682

558 

494 

451 

412 

391

370 

356 

343 

335 

345

428 

501 

497 

448 

46O

460 

428 

422 

432 

441

441 

416 

391 

382 

373

Dec.

362 

362 

416 

464 

451

464 

501 

655 

572 

541

552 

614 

1,050 

986 

786

660 

610 

579 

545 

507

490 

484 

444 

a420 

a42O

497 

501 

477 

464 

467 

451

Jan.

457 

487 

a43O 

a380 

a390

a400 

a410 

a42O 

a380 

a330

a340 

a350 

a370 

a390 

a400

a400 

a40o 

a4OO 

a400 

a400

a400 

a390 

a380 

a360 

a350

a360 

a370 

a370 

a36o 

a360 

a360

Feb.

a350 

a360 

370 

376 

376

376 

416 

403 

412 

416

536 

579 

507 

464 

46O

464 

480 

528 

579 

678

898 

3,910 

5,270 

2,98O 

2,580

2,640 

3,270 

2,770

Month

Oeto 

Move

Dece

Ca

Janu 

Pebr 

Marc 

Aprl 

Hay

June 

July 

Augu 

Sept

Wa

lendar year 1948

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

1 ....... Is..... ...........................

ter year 1948-49 .......................

Mar.

2,350 

3,790 

5,300 

3,960 

2,61O

2,450 

2, ISO 

1,980 

1,950 

2,490

4,650 

4,430 

3,480 

3,220 

4,47O

7,81O 

8.62O 

20,200 

17,000 

10,90O

7.63O 

5,930 

4,820 

4,02O 

3,530

3,250 

3,270 

3,400 

3,190 

3,040 

2,880

Apr.

2,800 

2,930 

3,040 

3,140 

3,500

3,930 

4,63O 

5,O90 

5,520 

6,290

7,7OO 

8,28O 

6,920 

6,340 

6,58O

7,640 

8,660 

8,900 

8,240 

6,640

7,350 

7,390 

7,710 

7,000 

5,750

5,200 

5,140 

5,240 

4,850 

4,150

Secondfoot-days

10,321 

14,449 

16,772

655,856

11,994 

33,450 

158,800 

176,610 

148,250 

52,335 

13,705 

6,410 

4,918

648,014

Peak discharge (base, 6,400 sec. -ft.).- Feb. 22 (10:30

May

3,790 

4,920 

5,220 

4,410 

4,140

4,180 

4,450 

4.60O 

4,610 

6,600

7,920 

7,680 

9,360 

7,840 

6,960

6,300 

5,180 

4,110 

3,560 

3,500

3,270 

3,010 

3, ISO 

3,380 

3,740

3,990 

3,970 

3,270 

3,840 

4,OOO 

3,300

Maximum

774 

1,150 

1,050

33,300

487 

5,270 

20,200 

8,900 

9,360 

3,150 

726 

272 

174

2O.20O

June

3,150 

2,810 

2,59O 

2,570 

2,750

2.87O 

2,31O 

2,560 

2,250 

2,2OO

2,090 

2,000 

1,92O 

1,810 

1.69O

1,610 

1.41O 

1,250 

1.19O 

1,200

1,160 

1,090 

1,060 

1,010 

982

942 

882 

832 

79O 

757

July

728 

703 

685 

667 

646

628 

607 

582 

558 

538

514 

490 

464 

441 

419

403 

382 

365 

351 

343

532 

322 

315 

305 

298

2S8 

261 

274 

265 

259 

252

Aue.

263 

272 

259 

246 

234

230 

228 

224 

220 

216

214 

212 

208 

207 

2O7

205 

201 

19S 

196 

192

189 

186 

183 

181 

181

181 

178 

178 

178 

171 

17O

Minimum Mean

248 333 

262 482 

362 541

18O 1,792

33O 387 

350 1,135 

1,950 5,123 

2,800 5,887 

3,010 4,782 

757 1,744 

252 442 

170 207 

159 164

159 1,775

p.m.) 8.4OO see. -ft.; Mar. 18 (3

Sept.

168 

167 

164 

162 

162

160 

16O 

163 

171 

174

174 

174 

171 

168 

165

163 

162 

160 

160 

160

159 

159 

159 

159 

159

159 

160 

163 

165 

168

Runoff In 

aore-feet

20,470 

28,660 

33,270

1,301,000

23,790 

66,350 

315,000 

350,300 

294,000 

103,800 

27,180 

12,710 

9,750

1,285,000

... . p.»0

. . =30 a.m.) 9.12O see.-ft.; Apr. 18 .. , .. 

11,100 sec.-ft.

a Ho gage-height record; discharge computed on basia of records for Trinity River at Lewlston, and 

Clear Creek near Igo, and Cottonvood Creek near Cottonwood.
450 KLAMATH RIVER BASIN

Trinity River near Hoopa, Calif.

Location.- Water-stage recorder, lat. 41*02', long. 123°39', in SE^ sec. 31. T. 8 N., R. 

b K., 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 1949. October 1911 to January 1914 and 

November 191« to August 1918 at site at Hoopa, 2 miles downstream.

Average discharge.- 20 years (1911-13, 1931-49), 5,163 second-feet.

Extremes.- Maximum discharge during year, 54,100 second-feet Mar. 18 (gage height, 20.65 

reeti: minimum, 354 second-feet Sept. 35 {gage height, 2.92 feet).

1911-14, 1916-18, 1931-49: 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 tables, water year 1948-49 (gage height, In feet, 

and discharge, In second-feet)

Oct. 1 to Mar. 1? Mar. 18 to Sept. 30

3.8 

4.4 

5.1 

5.8

585

845

1,260

1,820

2,620

7.5

8.5

10.0

11.5

13.0

3,900

5,840

9,500

13,800

18,600

15.0

17.0

19.4

26,300

35,300

47,000

2.9 

3.3 

3.9 

4.4 

5.1

350

450

615

870

1,260

Hote.- Same as preceding table above 5.1 

feet.

Discharge, in second-feet, water year October 1948 to September 1949

Day

1 

, Z 

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

dot.

669 

649 

-681 

1,070 

1,970

1,550 

1,210 

1,020 

911 

845

872 

845 

825 

810 

782

759 

736

710 

697 

673

665 

661 

653 

653 

653

645 

641 

633 

625 

621 

637

Nov.

786 

2,030 

2,830 

2,340 

1,860

1,450 

1,250 

1,120 

1,030 

966

916 

884 

845 

835 

1,040

1,360 

1,78O 

1,600 

1,840 

2,070

1,730 

1,490 

1,390 

1,340 

1,320

1,300 

1,210 

1,200 

1,270 

1,220

Dec.

1,180 

1,200 

1,580 

1,660 

2,570

3,080 

6,500 

7,350 

4,800 

4,240

5,530 

9,050 

10,400 

7,420 

5,360

4,310 

3,710 

3,280 

2,900 

2,670

2,550 

2,410 

2,250 

2,040 

2,040

2,100 

2,160 

2,060 

2,290 

2,730 

2,820

Jan.

3 , 660 

4,030 

3,530 

3,040 

2,620

2,510 

2,560 

2,600 

2,520 

2,220

2,040 

2,040 

2,120 

2,170 

2,100

1,960 

1,850 

1,840 

1,810 

1,770

1,700 

1,770 

1,680 

1,580 

1,360

1,360 

1,560 

1,530 

1,440 

1,400 

1,390

Feb.

1,390 

1,410 

1,470 

1,620 

1,620

1,780 

1,880 

11,750 

1,770 

2,630

5,240 

4,420 

3,650 

3,150 

3,010

3.01O 

3,160 

3,480 

3,840 

4,260

4,840 

9,700 

22,700 

14,200 

11,600

11,200 

11,900 

11,100

Month

Oeto 

Nova 

Dece

Ca

Janu 

Fetor 

Hare 

Apr! 

Hay.

June 

July 

Augu 

Sept

Wa

ber. ....................................

lendar year 1948 '

ter year 1948-49 .......................

Mar.

9,950 

11,200 

14,200 

12 , 400 

10,200

8,850 

8,020 

7,380 

7,350 

8,380'

10,100 

11,200 

9,800 

9,500 

13,000

23,400 

24.500 

46,800 

45,800 

35,700

27,400 

21,600 

18,000 

14,800 

12,700

11,200 

10,600 

10,400 

10,000 

9,350 

8,900

Apr.

8,500 

8,400 

8,500 

8,480 

8,820

9,550 

10,400 

11,200 

11,600 

12,500

14,400 

15,700 

14,100 

13,000 

12,900

13,700. 

14,800 

14,800 

14,000 

12,400

12,300 

12,600 

12,500 

11,800 

1O.400

9,620 

9,380 

9,500 

9,400 

8,350

Secondfoot-days

25,371 

42,302 

114,240

1,781,166

65,760 

151,780 

482,680 

343,600 

252,350 

99,980 

31,422 

15,929 

11,774

1,637,188

May

7,750 

9,320 

10,200 

8,880 

8,150

7,920 

8,120 

8.3OO 

8,250 

9,700

11,600 

11,700 

12,400 

11,900 

10,500

10.2OO 

9,000 

7,800 

6,760 

6,450

6,330 

5,800 

5,620 

5,840 

6.28O

6,620 

6,740 

6,020 

5,750 

6,570 

5,880

Maximum

1,970 

2,630 

10,400

65,000

4,030 

22,700 

46,800 

15,700 

12,400 

5,750 

1,560 

655 

432

46,800

June

5,750 

5,240 

4,740 

4,550 

4,700

4,960 

5,080 

4,700 

4,240 

4,080

3,930 

3,770 

3,710 

3,540 

3,390

3,210 

2,930 

2,580 

2,420 

2,390

2,370 

2,250 

2,210 

2,140 

2,060

2,020 

1,920 

1,780 

1,710 

1,620

July

1,560 

1,500 

1,460 

1,430 

1,410

1,360 

1,320 

1,290 

1,210 

1,200

1,190 

1,130 

1,070 

1,020 

985

955 

920 

880 

838 

825

798 

780 

762 

748. 

735

719 

695 

683 

663 

647 

639

Minimum

621 

786 

1,180

444

1,360 

1,390 

7,350 

8,350 

5,620 

1,620 

639 

418 

356

356

Aug.

655 

655 

643 

615 

598

584 

570 

559 

556 

548

538 

528 

520 

514 

510

504 498^ 

492 

433 

480

471 

468 

462 

450 

444

441 

438 

435 

429 

423 

418

Mean

S18 

1,410 

3,685

4,867

2,121 

5,421 

15,570 

11,450 

8,140 

3,333 

1,014 

514 

392

4,485

Sept.

412 

408 

400 

392 

388

380 

378 

390 

432 

418

420 

420 

415 

410 

405

398 

395 

390 

368 

380

375 

370 

366 

358 

356

362 

375 

388 

400 

405

Runoff in 

acre-feet

50,320 

83,900 

226,600

3,533,000

130,400 

301,100 

957,400 

681,500 

500,500 

198,300 

62,320 

31,590 

23,350

3,247,000

Peak discharge (base, 22,000 sec.-ft.).- Feb. 23 (7 a.m.) 26,100 sec.-ft,; Mar. 18 (7 p.m.) 54,100
SMITH RIVER BASIN 451

Smith River near Crescent City, Calif.

Location.- Water-stage recorder, lat. 41M7 1 , long. 124°04< , in SW£ sec. 10, T. 16 N, , R. 

i E., 0.5 mile downstream from South Fork and 9 miles east of Crescent City.

Drainage area.- 613 square miles.

Records available.- October 1931 to September 1949.

Average discharge.- 17 years (1931-37, 1938-49), 3,345 seeond-fee't.

Extremes.- Maximum discharge during year, 64,300 second-feet Dec. 12 (gage height, 26.46 

reet), from rating curve extended above 25,000 second-feet'by logarithmic plotting of 

station and cableway ratings; minimum, 223 second-feet Sept. 24 (gage height, 3.60 

feet).

1931-49: Maximum discharge, 123,000 second-feet Dec. 28, 1945 (gage height, 35.6 

feet), from rating curve extended above 25,000 second-feet by logarithmic plotting of 

station and cableway ratings; minimum, 163 second-feet Oct. 21, 1931.

Remarks.- Records excellent, "too storage or diversion.

3.9

4.0 

4.2 

*.5 

4.8 

S.2

Rating tables, water year 1948-49 (gage height. In feet, 

and discharge. In second-feet)

Oct. 1 to Dec. 11 Dec. 12 to Sept. 30

284

310

367

463

575

740

5.7 

6.5 

7.5 

8.5 

9.5 

11.0

975

1,430

2,150

3,080

4,210

6,300

13.0 9,460

15.0 13,700

18.0 22,800

21.0 35,000

3,6 

4.0 

4.4 

4.8 

5.6

223

315

438

590

970

6.5

7.6

8.8

10.0

12,0

1,540

2,390

3,600

5,110

8,000

14.0 

16 .O 

18.0 

20.0 

22.5

11,600

16,300

22,800

30,500

42,500

Discharge, In second-feet, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

IS 

14

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

294 

289 

613 

1,990 

1,320

762 

575 

485 

43O 

418

793 

679 

543 

488 

453

411 

386 

367 

361 

346

337 

332 

338 

567 

543

446 

404 

386 

367 

361 

373

Nov.

2,55O 

4,140 

6,400 

3,140 

1,970

1,510 

1,240 

1,043 

915

821

754 

695 

655

725 

2,790

4,570 

5,220 

3,640 

7,420 

5,790

3,560 

2,660 

2,190 

2,040 

1,880

1,840 

1,640 

3,320 

4,090 

3,270

Dec.

3,040 

4,630 

5,880 

4,370 

13,500

9,660 

33,800 

16,800 

10,500 

11,500

30,200 ' 

42,100 

17,900 

11,000 

7,850

6,220 

5,080 

4,260 

3,720 

3,370

3,100 

2,860 

2,650 

2,490 

2,480

2,300 

2,180 

2,070 

4,65O 

4,920 

4,850

Jan.

10,500 

7,680 

5,460 

4,400 

3,710

3,260 

3,050 

2,860 

2,620 

2,440

2,270 

2,120 

2,030 

1,920 

1,800

1,730 

1,660 

1,610 

1,550 

1,480

1,520 

1,510 

1,370 

1,310 

1,270

1,360 

1,240 

1,210 

1,190 

1,170 

1,150

Feb.

1,160 

1,190 

1,290 

1,950 

1,790

3,560 

3,830 

2,620 

2,830 

18,000

13,600 

6,890 

4,930 

3,960

4,710

6,290 

8,290 

9,660 

8,980 

7,520

8,510 

30,200 

22,300 

11,200 

8,480

7,680 

7,040 

6,190

Month

Octo 

Hove

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mfiv

June 

July 

Augu 

Sept

Ha

ber. ...................................

nber. . . .^. ...............................

lendar year 1948 

ary

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

ter year 1948-49 .......................

Mar.

5,490 

6,050 

5,870 

5,030 

4,400

4,010 

3,730 

3,440 

3,600 

4,280

4,040 

3,650 

3,480 

3,540 

7,030

11,500 

10,400 

12,800 

12,900 

14,200

11,600 

10,900 

9,050 

7,180 

5,970

5,140 

4,980 

4,750 

4,180 

3,860 

3,500

Apr.

3,260 

3,070 

2,900 

2,830 

2,870

2,920 

2,990 

2,930 

2,860 

3,040

3,120 

2,960 

2,680 

2,590 

2,680

2,700 

2,660 

2,480 

2,350 

2,300

2,300 

2,220 

2,360 

2,300 

2,020

1,850 

1,820 

2,310 

2,360 

2,110

Secondfoot-days

16,457 

82,475 

279,930

1,571,710

78,350 

214,650 

200,550 

77,840 

117,150 

27,324 

13,000 

9,062 

7,312

1,124,100

May

12,000 

28, 300 

10,600 

6,720 

5,110

4,210 

3,730 

3,340 

3,010 

2,870

2,800 

2-, 650 

2,520 

2,320 

2,160

2,030 

1,870 

1,760 

1,740 

1,750

1,830 

1,630 

1,520 

1,470 

1,390

1,360 

1,310 

1,270 

1,240 

1,180 

1,460

Maximum

1,990 

7,420 

42,100

71,100

10,500 

30,200

3,260 

28,300 

2,270 

550 

343 

276

42,100

June

2,270 

1,690 

1,460 

1,330 

1,250

1 , 180 

1,120 

1,060 

1,000 

970

934 

880 

338 

806 

779

748 

730 

725 

716 

702

684 

671 

640 

630

612

599 

586 

578 

574 

562

Minimum

July :

289 

655 

2, .070

265

1,150 

1,160 

3,440 

1,820 

1,180 

562 

332 

254 

225

225

550 

530 

522 

510 

510

510 

495 

473 

462 

456

438 

424 

417 

406 

403

397 

391 

381 

384 

384

378 

372 

372 

378 

372

369 

360 

346 

343 

335 

332

Aug.

343 

343 

332 

321 

318

318 

329 

323 

312 

305

305 

305 

302 

295 

290

288 

285 

283 

278 

278

274 

269 

269 

269 

267

263 

263 

263 

260 

258 

254

Mean

531 

2,749 

9,030

4,294

2,527 

7,666 

6,469 

2,595 

3,779 

911 

419 

292 

244

3,080

Sept.

252 

245 

243 

243 

245

247 

247 

245 

245 

245

245 

245 

241 

236 

243

276 

274 

249 

243 

236

234 

230 

225 

227 

243

241 

234 

243 

245 

245

Runoff In 

acre-feet

32,640 

163,600 

555,200

3,117,000

155,400 

425,800 

397,800 

154,400 

232,400 

54,200 

25,790 

17,970 

14,500

2,E30,OOO

Peak discharge (base. 36.OOP Bee.-ft.).- Dec. 7 (12.-3O p.m.) 58,600 see.-ft.; Dee. 12 (7 a.m.) 

64. ,,iOO _. eea.-tt.; ___ .... Feb. ..... 10 _. (5;i6 ,.. p.m.) 38,200 ------ ------ - - -

(4:30 a.m.) 42,000 see.-ft.

sec.-ft.; Feb. 22 (2:30 p.mj 48,800 see.-ft.; Hay 2
452 MISCELLANEOUS DISCHARGE MEASUREMENTS

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 discharge measurements in the Pacific slope basins in California and Oregon 

during water year October 1948 to September 1949

STREAMS SOUTH OF SALINAS RIVER BASIN, CALIF. 

Tia Juana River at boundary at San Ysidro

Date

Oct. 8

21

Nov. 5

23

Dec. 9

27

Jan. 12

Discharge 

(sec. -ft.)

1.53

9.0

6.1

2.66

5.5

16.7

15.9

Date

Jan. 27

Feb. 2

16

Mar. 2

10

18

29

Discharge 

(sec. -ft.)

32.7

18.6

22.8

23.6

IE. 7

9.7

11.0

Date

Apr. 12

27

May 9

23

June 2

8

21

Discharge 

(sec. -ft.)

4.71

2.40

2.65

3.04

1.97

2,94

5.0

Date

July 1

14

27

Aug. 11

26

Sept. 8

26

Discharge 

(sec. -ft.)

3.03

1.77

1.83

3.40

2.53

1.93

3.23

Tecate Creek near Dulzura 

Feb. 24, 0.91 second-foot

South Fork San Diego River above El Capitan Dam

Mar. 7

7 

7

2.72 H Mar. 7 

2.44 H 7 

1.94 | 7

1.10 II Mar. 7 

.65 | 7 

.30 | 7

0.05 | 

1.46 | 

6.1 11

Boulder Creek below Cuyamaea Dara

Apr. 28 

28

10.4 

38.4

Apr. 28 

May 11

66.1 

59.3 1

May 11 59.5 | 

n

San Dieguito River below Bernardo Bridge 

June 9, 17.8 second-feet

San Dieguito River below Hodges Dam 

July 18, 0.05 second-foot; July 26, 19.6 second-feet

Bear Valley Creek at mouth, near Bernardo

Dec. 29 

31 

Jan. 3

13

8.7 

10.2 

9.9 

9.5

Jan. 14 

18 

25 

25

12.5 

11.4 

13.3 

13.8

Feb. 3 

3 

10 

14

11.8 Mar. 4 

13.2 4 

14.5 

13.2

24.3 

23.5

Rote.- No natural flow In Bear Valley Creek; water diverted from San Luls Rey River Basin to Lake 

Hodges Reservoir on San Dieguito River.

Colorado Inflow to Hodges Reservoir at upper end of ditch, near Bernardo 

June 9, 20.4 second-feet

Colorado- Inflow to Hodges Reservoir at mouth of ditch at Bernardo Bridge 

June 9, 20.1 second-feet

San Dieguito conduit at Station 202

June 9 17.2 | July 18 13. 6

Temecula Creek abov

Nov. 26 

29 

Dec. 1 

3 

6

2.26 

2.13 

2.22 

2.26 

2.29

Dec. 8

10 

13 

15 

17

2.37 

2.35 

2.40 

2.22 

3.65

July 28 19.2 J Aug. 15 19.4

e dam near Temecula

Dec. 21 

24 

29 

31 

Jan. 3

2.67 Jan. 5 

2.76 7 

2.90 Aug. 19 

2.57 

2.65

2.50 

2.24 

.84

Las Flores Creek 0.9 mile below confluence of Las Pulgas and Piedra de Lostbre Creeks, 

near Oceanside

Oct. 12 

Dee. 7 

Jan. 6

0.83 

.81 

.76

Mar. 3 

Apr. 19 

June 16

O.73 

.70 

t.04

July 14 

Aug. 4 

Sept. 7

to. 04 y

.90 II 

.31 I)

t Estimated. 

Hote.- Measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.

San Juan Mutual Water Co. 's diversion near San Juan Capistrano

Oct. 12* 

Dec . 7* 

Jan. 6* 

Mar. 3*

O.51 | Apr. 18 

.43 B 19 

1.88 H May 3 

2.13 1 5

1.00 ! 

*.67 

.56 

.55 I

May 16 

June 2 

15 

16

0.46 June 27 

.45 July 14* 

.01 Aug. 4* 

*.07 Sept. 7*

0.08 

t.Ol 

0 

t.30

Measurements furnished by Santa Margarita Ranch (U. S. Kavy) and Pauba Ranch, 

t Estimated.
MISCELLANEOUS DISCHARGE MEASUREMENTS 453

Miscellaneous discharge measurements in the Pacific slope basins in California and Oregon 

during water year October 1948 to September 1949 Continued

STREAMS SOOTH OP SALIMAS RIVER BASIS, CALIF. Continued 

Santa Ana River at Yorba Bridge, near Yorba

Date

Dec. 27

28

31

Jan. 3

5

7

1O

12

13

14

17

19

Dlsbharge 

{see. -ft.)

66.5

63.6

16.7

26.3

7.3

8.7

29.8

46.1

173

111

52.5

39.2

Date

Jan. 20

21

24

26

28

31

Feb. 2

4

7

9

11

14

Discharge 

(sec. -ft.)

91.7

112

130

84.7

79.2

84.5

79.2

125

92.7

97.2

§9.7

83.2

Date

Feb. 16

18

21

23

25

28

Mar. 2

4

7

9

11

14

Discharge 

(see. -ft.)

95.8

106

107 '

82. 6

80.0

171

127

128

129

127

94.6

90.1

Date

Mar. 16

IB

21

23

25

28

30

Apr. 1

4

6

e

11

13

Discharge 

{see. -ft.)

93.5

84.3

78.4

52.8

44.0

52.1

36.4

39.4

20.9

18.6

8.1

16.2

0

Note.- Measurements furnished by Orange County Flood Control District.

Santa Ana River at Jefferson Street Bridge, near Atwood

Dec. 27

28

31

Jan. 3

10

12

13

14

0

.60 t.io

tl.50

0

0

33 .0

23.3

Jan. 17

19

20

21

24

26

28

31

t2.0

.78

12.1

27.9

24-. 6

14. 6

5.9

6.4

Feb. 2

4

9

11

16

25

Mar. 2

9

7.9

41.3

23.5

21.6

21.2

9.2

23.2

23.3

Mar. 16

21

23

25

Apr. 1

4

13.4

13.6

20.7

3.55

4.88

0

t Estimated.

Hote.- Measurements furnished by Orange County Flood Control District.

Santa Ana River at bridge on Anahelm-Ollve road, near Olive

Jan. 13

14

20

24

26

28

Feb. 2

1.97

3.97

1.43

7.6

3.07

0

1.22

Feb. 4

7

9

14

16

18

21

20.2

4.42

11.3

12.2

4.32

3.42

2.21

Feb. 23

25

28

Mar. 2

4

7

9

3.55

.50

21.8

4.27

11.6

4. SO

8.8

Kar. 11

14

16

18

21

28

30

25.3

9.3

.43

0

0

4.02 '

0

Hote.- Measurements furnished by Orange County Flood Control District.

Rising water about 500 feet east of Warm Creek at Colton Avenue, near Colton

Jan. 7

12

13

13

14

0

t.3

t.3

t.5

t.3

Jan. 21

23

28

Feb. 4

11

1.60

tl.OO

1.32

2.13

2.61

Feb. 18

25

Kar, 4

11

18

3.20

3.34

3.45

2.65

3.06

Mar. 24

Apr. 1

8

15,

2.11

.81

.32

0

t Estimated.

Day Creek diversion near Etlwanda

Oct. 11

27

Hov. 15

29

Dec. 13

28

Jan. 1O

0.86 U Jan. 28

1.14 fl Feb. 10

1.38 21

1,05 | Mar. 7

1.50 II 21

0 II Apr. 4

2.02 P 18

2.53

0

2.26

3.71

4.14

3.18

3.70

May 5

16

31

June 13

27

July 11

25

2.61

3.04

2.31

1.75

1. 93

1.23

1.88

Aug. 6

25

Sept. 8

19

1.48

1.65

1.52

1.18

Diversion from effluent of Riverside Sewage Treatment Plant bypassing 

on Santa Ana River at Riverside Narrows

Apr. 22

26

May 2

10

17

24

7.O

6,2

3.32

7.6

2.87

6.7

May 31

June 7

13

21

28

July 5

2.29 B July 11

7.8 j 19

8.6 H 26

2.48 Aug. 2

7.6 fl 8

3.52 fl 15

S. 4

8.0

8.2

2.52

9.3

4.05

Aug. 22

29

Sept. 6

&

27

3.24

5.2

3.30

4.33

7.2

Durkee ditch near Auburndale

May 17 

June 28

0.57 

6.4 I

july 26 

Aug. 22

6.4 

6.7 « 

Sept. 27 ... ,

MatlllJa Creek, 1.5 miles above gaging station above reservoir, near Katlllja

Oct. 6

20

Mov. 8

Dec. 6

21

Jan. 10

0.73

.83

.82

1.09

1.36

2.11

Jan. 24

Feb . 9

Mar. 7

21

Apr. 4

18

2.85 H May 2

3.36 H 16

4.58 31

10.7 fl June 14

6.6 !| 28

5.8 fl July 12

4.3O

3.56

3.55

2.67

2.21

1.66

July 26

Aug. 9

23

Sept . 6

19

1.36

1.08

.83

.65

.65

Teeolote Canyon Creek, near Elwood

Oct. 19 

Nov. 15 

Dec. 13

0 | Jan. 17 

0 Mar. 16 

0 | Apr. 25

0.18 

1.14 

.10

May 13 

June 20 

July 18

0.06 || Aug. IS 

.06 0 Sept. 13 

0 J

0 

0

947809 0-51-20
454 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In the Pacific slope basins in California and Oregon 

during water year October 1948 to September 1949 Continued

STREAMS SOOTH OP SAL1HAS RIVEH BASIN, CALIF. Continued 

Eagle Canyon Creek near Elwood

Date

Oct. 19 

Nov. 17 

Dec. IS

Discharge 

(sec. -ft.)

0 1 

0

o 1

Date

Jan. 17 

Mar. 16 

Apr. 25

Discharge 

(sec. -ft.)

o.ooe

.07 

.02

Date

|

Hay 13 

June 20 

( July 18

Discharge 

(sec. -ft.)

0.007 

.01 

.002 [

Date

Aug. 15 

Sept . 13

Discharge 

(sec. -ft.)

0.002 

.003

Dos Pueblos Creek near Naples

Oct. 19

22

22

22

Nov. 17

0.27

.28

.21

.21

.26

Dec. 14

Jan. 17

Feb. 2

7

Mar. 4

0.36 Mar. 11

. 47 16

.50 I 29

.88 H Apr. 25

7.2 May 13

6.9

2.09

.89

.54

.48

June 21

July 18

Aug. 15

Sept. 9

0.43

.49

.33

.29

Santa Ynez River at Buellton

Nov. 17 

Dec. 14 

Apr. 28

0 May 24 

0 [I June 27 

1.72 [I July 26

1.19 || Aug. 23 

0 II Sept. 14 

0 | 21

0 U 

0 

0 ||

Santa Cota Creek at mouth, near Santa Ynez

Oct. 15 

Nov. 18 

May 4

3.09 § May 26 

3.29 M July 5 

1.06 I) 27

0.60 || Sept. 1 

1.74 14 

.77 [I 29

0.38 

.32

.30

Alamo Pintado Creek at Santa Ynez River, near Solvang

Dec. 18 

May 4

0.44 | May 26 

.28 || July 5

0.25 || July 27 

.25 || Sept. 8

0.21 

.18

Sept. 29 0.20

Allsal Creek at mouth, near Solvang

July 5 

14 

27

to.i

.12 

.08

Aug. 11 

24

O.O7 

.07

Sept. 1 

8

0.04 

.01

Sept. 14 

22

0 

0

t Estimated. 

La Zaca Creek, 5.0 miles above mouth, near Buellton

July 26 

Aug. 11

0.04 

.04

Aug. 24 

Sept. 1

0.04 

.05

Sept. 8 

14

O.03 

.04

Sept . 22 0.05

Nojoqui Creek at mouth, near Buellton 

8 observations of no flow July 5 to Sept. 22

Santa Rosa Creek near Buellton

Oct. 15 

Nov. 19 

Jan. 12

0.25 

.21 

.57

Apr. 28 

May 25 

June 29

0.15 

.26 

.25

July 26 

Aug. 24 

S«pt . 14

0.19 

.25 

.27

Salsipuedes Creek at Santa Ynez River near Lompoc

Oct. 15 

Nov. 19

0.05 

.08

Apr. 26 

May 25

0.96 |f June 29 

.29 1 July 26

0.11 

.005

Aug. 23 

Sept. 21

0 

0

Cuyama River below Cottonwood Creek, near Cuyama

Oct. 14 

Nov. 23

' 3.86 

b . &

Apr. 29 

May 24

5.5 June 28 

3.83 July 25

0 

O

Aug. 22 

Sept. 19

2.71 

1.94

Cuyama River below Qypsum Creek, near Cuyama

Oct. 14 

Nov. 23

0 

1.07

Apr. 29 

May 24

2.59 K. June 28 

2.32 U July 25

0 

0

Aug. 22 

Sept. 19

O 

0

Santa Maria River at confluence of Cuyama and Sisquoc Rivers, near Santa. Maria

Dec. 28 0 ff Feb. 7 1.51 K Feb. 25 0 f| Mar. 4 17.8

La Brea Creek 2.2 miles above gaging station near Sisquoc 

Apr. 28, 0.23 second-foot

La Brea Creek 1.1 miles above gaging station, near Sisquoc

Nov. 3 

Mar. 11

0 f| May 9 1 0.34 

.45 |[ June 13 | .15

July 11 

Aug. 9

0.12 

.10

Sept. 6 0.15

Arroyo Qrande, 2.5 miles above Harris Bridge 

Oct. 14, 2.12 second-feetj Nov. 22, 2.83 second-feet

AMERICA}} RIVER BASIN

Eldorado Canal at Camp 5, Calif. 

Mar. 17, 18.1 second-feet

El Dorado Canal at gage Ho. 16 at Pollack Pines, Calif. 

Jan. 26, 6.4 second-feet; Apr. 24, 156 second-feet
MISCELLANEOUS DISCHARGE MEASUREMENTS 455

Miscellaneous discharge measurements In the Pacific slope basins in California and Oregon 

during water year October 1948 to September 1949 Continued

COLUSA AMD YOLO BASIHS, CALIF, 

a Putah Creek at gaging station 6 miles west of Winters

Date

Jan. 6 

Feb. 1

Discharge 

(sec. -ft.)

163 

125

Date

May 10 

25

Discharge [1 ... 

(sec. -ft.) [[ Date

86 June 3 

59 [[

Discharge 

(sec. -ft.)

22.7

Date

June 9

Discharge 

(aec.-ft.)

13.6

Putah Creek at low water bridge 3.8 miles below gaging station near Winters

Jan. 6 165 

Feb. 1 121

May 10 : 23 June 3 20.9 June 9

Putah Creek, 2 miles upstream from Winters and 6.1 miles below gaging station near Winters

Jan. 6 

Feb. 1

May 10 

23

76 June " 3 19.8 June 9

Putah Creek, 1.5 miles above Winters and 6.6 miles below gaging station near Winters

Jan. 6 

Feb. 1

May 10 

23

74

56

June 3 June 9

Putah Creek, 300 feet below dam at Winters and 8.2 miles below gaging station near Winters

Jan. 6 

Feb. 1

May 10 

23

68 June 3 June 9 0.7

Putah Creek, 0.5 miles below railroad bridge at Winters and 8.5 miles below 

gaging station near Winters

Jan. 6 

Feb. 1

160

112

May 10 

23

70

47.6

Putah Creek, 1 mile below railroad bridge at Winters and 8.9 miles below 

gaging atatlon near Winters

Jan. 6 

Feb. 1

May 10 

23

68

44.3

Putah Creek, 2.5 miles «aat of winters and 10.8 miles below gaging station near Winters

Jan. 6 

Feb. 1

159

108

May 10

; 23 June 3 3.4 June 9

Putah Creek, 4.7 miles east of Winters and 13.1 miles below gaging station near Winters

Jan. 6 158 

Feb. 1 I 107

May 10 

23

June 3 3.9 June 9

Putah Creek, 500 feet below Stevenson Bridge and 15.1 miles below station near Winters

Jan. 6 

Feb. 1

160

108

Kay 10 

23

65

40.6

June 3 7.4 June 9

a Putah Creek at gaging station near Davls, 18.8 miles below gaging station near Winters

Jan. 6 | 154 

Feb. 1 I 107

May 10 

23

60 June 3 2.5 June 9

Putah Creek at Southern Pacific R.R. bridge, 1.5 miles below gaging station near Davis

Jan. e 

Feb. 1

0.5 June 9

Jan. 6 

Feb. 1

Putah Creek, about 0.5 mile above Yolo-Solano county line and 4.7 miles below 

___ ___ gaging station near Davls __________________

 - II May 10 - |[ June 3 [ 0 II June 9 [ 

23 30.4

a Gaging station near Winters is shown on map of Capay Quadrangle, edition of 1945, and other 

points may be located on the map by means of channel distances given.

KLAMATH RIVER BASIH, OREQ.

Wllllamson River at former gaging station above Spring Creek, near Klamath Agency 

Aug. 11, 20.2 second-feet

Blg,.Sprlng Creek below tributary on Lenz Ranch, sec. 22, T. 30 S., R. 8 E. 

' Aug. 12, 0 second-foot

Seott and Sand Creek Canals, li miles below junction of feeder canals, near Port Klamath 

Aug. 13, 19.8 second-feet

Spring Creek, NEt see. 9, T. 34 S., R. 7 E., at mouth, near Chlloquln 

Aug. 11, 293 second-feet

Flvemlle Creek at former gaging station near Beatty 

Aug. 12, 17.9 second-feet
456 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements in the Pacific slope basins In California and Oregon 

during water year October 1948 to September 1949 Continued

KLAMATH RIVER BASIN, OREG.--Continued

Brown Creek, sec. 14, T. 36 S., R. 12 E.', below diversion, at bridge 1 mile east of Beatty 

Aug. 11, 2.1 second-feet

Left bank diversion canal diverting from Brown Creek, sec. 14, 1. 36 S., R. 12., below

diversion, at bridge 1 mile east of Beatty

Aug. 11, 2.0 second-feet

Sycan River at former gaging station near Beatty 

Aug. 12, 0.7 second-foot

Whiskey Creek at former gaging station near Beatty 

Aug. 12, 19.2 second-feet

Kankaun (HeCready) Spring, sec. 25; 1?. 34 S., R. 8 E., near Chiloquin 

Aug. 12, 35.9 second-feet

Wood River, sec. 3, T. 33 S., H. 7i E., above Sun Creek and below springs near Port Klamath 

Aug. 13,218 second-feet

Wood River at former gaging station at Port Klamath 

Aug. 13, 195 second-feet

Anna Creek at former gaging station near Port Klamath 

Aug. 13, 67.8 second-feet

Port Creek, sec. 26, T. 33 S., R. ?i E., at highway crossing, below-diversion,

near Port Klamath 

Aug. 13, 72.3 second-feet

Left bank diversion canal diverting from Port Creek, see. 26, T- 33 S., R. 7i E., at highway

crossing, below diversion, near Port Klamath

Aug. 13, 13.3 second-feet

Crooked Creek, sec. 13, T-. 34 S., R. 7i B., below diversion, at Klamath Agency 

Aug. 13, 74.7 second-feet

Agency Canal diverting from Agency Spring at intake, at Klamath Agency 

Aug. 13, t2.5 second-feet

Sevenmlle Creek, sec. 36, T. 33 S., R. 6 E., at bridge, below diversion

near Fort Klamath 

Aug. 13, 35.2 second-feet

Irrigation canal diverting from Sevenmlle Creek, sec, 36, T. 33 S., R. 6 E., at bridge,

below diversion near Port Klaraath

Aug. 13, 4.3 second-feet

Spencer Creek at mouth, near Keno 

Aug. 13, 16.4 second-feet

Keene Creek at former gaging station near Lincoln 

Nov. 5, 0.3 aecond-foot

t Estimated.
INDEX

"A" Canal at Klamath Palls, Oreg....... 437

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

Aore-foot, definition of............... 1

Agencies other than Geological Survey,

records collected by............. 12-14

Agency Canal, Oreg., discharge measure.- 

ment of..........................

Alameda Creek'near Niles, Calif........

Alamitos Creek near Edenvale, Calif....

Alamo Creek near Santa Maria, Calif....

Alamo Pintado Creek, Calif., discharge 

measurements of..................

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

Alisal Creek, Calif., discharge

measurements of..................

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

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

at Sacramento, Calif..................

Midflle Pork, near Auburn, Calif......

North Fork, at North Fork Dam, Calif, 

at Rattlesnake Bridge, Calif.......

South Pork, near Camino, Calif.......

near Kyburz, Calif.................

American River Basin, Calif., discharge 

measurements in..................

Bonsall, Calif., San Luis Hey .River

gaging-station records in...........377-398

American River flume near Camino, Calif. 397 

Anna Creek, Oreg., discharge measurement of.......................... 456

Antelope Creek near Red Bluff, Calif... 331 

Arlington, Calif., Santa Ana River near 46 

Arrowhead Springs, Calif., Strawberry

Creek near....................... 63

Waterman Canyon-Creek near........... 64

Arroyo Grande at Arroyo Grande, Calif.. 164

discharge measurements of............. 454

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif............. 113

Arroyo Seco (Salinas River Basin) near

Soledad, Calif................... 175

Artesia, Calif., Coyote Creek near..... 99

Ashland, Oreg., Keene Creek near....... 443

Keene Creek Canal near............... 444

Atascadero Creek near Goleta, Calif.... 138

Auberry, Calif., Big Sandy Creek near.. 236 

Auburn, Calif., Bear River near........ 374

Middle Fork American River near...... 381

456

190

183

159

454

393

454

42

379

380 Branscbmb, Calif., South Pork Eel River

381

377

378

387

386

454

Avery, Calif., Middle Pork Stanislaus 

River near......................

North Fork Stanislaus River near...., 

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

San Gabriel River near...............

Bagby, Calif., Merced River at.

273

277

93

89

Bakersfield, Calif., Kern River near!.195-196 

Baldwin Park, Calif., San Gabriel River

90

121

330

81

287

Ballona Creek near Culver City, Calif.. 

Battle Creek ne^tr Cottonwood, Calif.... 

Bautista Creek near Hemet, Calif.

Bear Creek tributary to San Joaquin

River near Lockeford, Calif..... 

Bear Creek tributary to South Fork San

Joaquin River) near Vermilion

Valley, Calif....................

Bear River (Feather River Basin) near

Auburn, Calif....................

near Wheatland, Calif................

Bear River (Mokelumne River Basin) at

Pardoe Camp, Calif...............

Bear River Canal near Colfax, Calif....

Bear Valley Creek, Calif., discharge

measurements of..................

Beaumont, Calif., Little San Gorgonio

Creek near.

227

374

375

296

376

452

60

Beaver Creek near Lilyglen, Oreg....... 442

Bidwell Bar, Calif., Middle Pork

Feather River at..............

Big Bar, Calif., North Fork Feather 

River at......................

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

354

341

321

Big Creek, Calif., Florence Lake near.. 223

Huntington Lake near................. 229

San Joaquin River above.............. 213

Shaver Lake near..................... 832

Big Creek below Huntington Lake, Calif. 230

Big Sandy Creek near Auberry, Calif.... 236 

Big Spring Creek,.Oreg., discharge

measurement of................... 455

Big Trees, Calif., San Lorenzo River at 181

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

Boulder Creek, Calif., discharge

measurements of..................

Bowman Lake, Calif., Canyon Creek below 

Bowman Lake near Graniteville, Calif... 

Bowman-Spaulding Canal at intake, Calif. 

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

near.

Brea, Calif., Pullerton Creek near.....

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

below Brea Dam, near Fullerton, Calif. 

Bridgeville, Calif., Van Duzen River at 

Brown Creek, Calif., discharge measurement of..........................

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

Buchanan dam site, Calif., Chowchilla

River at.

Bucks Creek Reservoir near Bucks Ranch, 

Calif............................

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

Santa Ynez, Calif....................

Butt Creek above Almanor-But.t Creek

tunnel, near Prattville, Calif... 

below Almanor-Butt Creek tunnel, 

near Prattville, Calif.

Butte City, Calif., Sacramento River at 

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

33

198

452

369

368

370

170

425

101

101

100

427

456

372

246

348

154

146

344

345

313

338

Cache Creek at Yolo, Calif. ............ 403

near Capay, Calif. .................... 402

near Lower Lake, Calif ....... ^... .... 401

North Fork, near Lower Lake, Calif... 405

Cajon Creek near Keenbrook, Calif...... 72

Calabasas, Calif., Malibu Creek near. .. 123

Calaveras River at Jenny Lind, Calif... 284

Calaveras River Basin, Calif., gagingstation records in. ............ .284-286

Calpella', Calif. , East Fork Russian

River near. ...................... 417

Camino, Calif., American River flume near 397 

Camp Creek near ...................... 305

South Pork American River near. ...... 387

Camp Bonita, Calif., East Fork San 

Gabriel River near. ..........

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

Camp Rincon, Calif., West Fork San

Gabriel River at.. ............... 92

Campbell Creek at Saratoga, Calif...... 187

Campo Creek near Campo, Calif.

88

305

20 

Canby, Calif., Pit River near.......... 318

Canyon Creek below Bowman Lake, Calif. 

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

Carpinteria Creek near Carpinteria,

Calif.

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

Chamberlain Slough near El Nido, Calif. 

Cherry Creek near Hetch Hetchy, Calif.. 

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

Chico Creek near.

369

402

137

436

247

264

338

336

336

435

428

176

246

366 

City Creek near Highland, Calif........ 65-66

City Creek Water Co.'s canal near HighChico Creek near Chico, Calif..........

Chiloquin, Oreg., Sprague River near... 

Williamson River near................

Chittenden, Calif., Pajaro River near.. 

Chowchilla River at Buchanan dam site, 

Calif............................

Cisco, Calif., South Fork Yuba River

land, Calif.

457
INDEX

Page 

Claremont, Calif., San Antonio Creek

near............................. 82-83

Southern California Edison Co.'s

conduit near..................... 84

Clear Creek near Igo, Calif............ 328

Clear Lake at Lakeport, Calif.......... 400

Clements, Calif., Mokelumne River near. 292 

Cliff Camp, Calif., North Fork Kings

River near....................... 211

Clio, Calif., Middle Pork Feather River

near............................. 352

Clipper Mills, Calif., Lost Creek near. 356 

Cloverdale, Calif., Dry Creek near..... 418

Colby Ranch, Calif., Tujunga Creek near 108 

Cold Creek near Mokelumne Peak, Calif.. 295 

Colfax, Calif., Bear River Canal" near.. 376 

Colgate diversion dam, Calif., North

Fork Yuba River at............... 365

Colton, Calif., Meeks & Daley Canal

near............................. 74

Warm Creek near...................... 61-62

Colusa, Calif., Sacramento River at.... 314

Colusa and Yolo Basins, Calif., gagingstation records in...............399-409

Computations, accuracy of results'of... 5-6 

Concow Creek near Yankee Hill, Calif... 350 

Conn Creek near St. Helena, Calif...... 411

Contents, definition of................ 2

Control, definition of................. 1

Cooperation, record of................. 14

Copco, Calif., Fall Creek at........... 441

Klamath River near................... 432

Corona, Calif., Santa Ana River near... 47,48 

Temescal Creek near.................. 81

Cosgrove Creek -near Valley Springs,

Calif............................ 285

Cosumnes River at McConnell, Calif..... 304

at Michigan Bar, Calif............... 303

North Fork, at Cosumnes Mine, Calif.. 301 

near El Dorado, Calif.............. 302

Cottonwood, Calif., Battle Creek near.. 330 

Cottonwood Creek near................ 329

Cottonwood Creek {Goose Lake Basin)

near Lakeview, Oreg............... 308

Cottonwood Creek (Sacramento River

Basin) near Cottonwood, Calif.... 329 

Cottonwood Creek (San Joaquin River

Basin) near Friant, Calif........ 241

Cottonwood 'Creek (Tia Juana River

Basin) above Tecate Creek, near

Dulzura Calif................... 16

Coyote Creek (tributary to San Francisco Bay) ne.ar Edenvale, Calif..... 189

near Madrone, Calif.................. 188

Coyote Creek Basin, Calif., gagingstation records in..............188-189

Coyote Creek (tributary to San Gabriel

River) near Artesia, Calif....... 99

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 136

Craftonville, Calif., Mill Creek near.. 54-55 

Mill Creek power canal 1 near........ 57

Mill Creek power canals 2 and 3 near. 56 

Crane Valley Reservoir, Calif., Pacific

Gas & Electric Co. conduit No. 3

near............................. 235

North Fork Willow Creek below........ 234

Crescent City, Calif., Smith River near 451 

Crescent Mills, Calif., Indian Creek

near............................. 346

Crooked Creek, Oreg., discharge

measurement of................... 456

Cucamonga Creek near Upland, 'Calif..... 76

Culver City, Calif., Ballona Creek near 121 

Cupertino, Calif., Stevens Creek near.. 182 

Cuyama River, Calif., discharge measurements of......................... 454

near Santa Maria, Calif.............. 158

near Ventucopa, Calif................ 157

Dalton Creek near Glendora, Calif...... 96

Data, accuracy of...................... 5-6

explanation of....................... 2-5

Daulton, Calif., Fresno River near..... 245

Davis, Calif., Putah Creek near.......408-409

Day Creek near Etiwanda, Calif......... 75

Day Creek diversion, Calif., discharge

measurements of.................. 453

Deer Creek (tributary to Sacramento

River) near Vina, Calif.......... 335

Deer Creek.(tributary to Yuba River)

near Smartville, Calif........... 371

Delta, Calif., Sacramento River at.....3, 309

Devil Canyon Creek near San Bernardino,

Calif...............;....-..-.... ' 68

Don Pedro Reservoir near La Grange,

Calif............ ................. 260

Dos Palos, Calif., San Joaquin River

near...................-.. 218

Dos Pue"blos Creek, Calif., discharge

measurements of.................. 454

Douglas City, Trinity River near....... 449

Downey, Calif., Los Angeles River near. 105 

Rio Hondo near....................... 115

Drew Creek near Lakeview, Oreg......... 307

Dry Creek (Feather River Basin) at

Virginia, Calif................... 373

near Brownsville, Calif.............. 372

Dry Creek (Mokelumne River Basin) near

Gait, Calif...................... 300

Dry Creek (Russian River Basin) near

Cloverdale, Calif................ 418

Duarte, Calif., Fish Creek near........ 3, 94

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

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. 177 

Durkee ditch, Calif., discharge

measurements of.................. 453

Eagle Canyon Creek, Calif., discharge

measurements of................... 454

East Highlands, Calif., Plunge Creek

near............................. 58

Eaton Creek near Pasadena, Calif....... 119

Echo Lake conduit near Vade, Calif..... 388

Edenvale, Calif., Alamitos Creek near.. 183 

Coyote Creek near.................... 189

Eel River at Hullville, Calif.......... 421

at Scotia, Calif..................... 423

at Van Ardsdale Dam, near Potter

Valley, Calif.................... 422

South Fork near Branscomb, Calif....! 425

near Miranda, Calif................ 426

Eel River Basin, Calif., gaging-station

records in......................420-427

Elder Creek near Paskenta, Calif....... 333

El Dorado, Calif., North Fork Cosumnes

River near....................... 302

El Dorado Canal, Calif., discharge

measurements of.................. 454

near Kyburz, Calif.................... 392

El Nido, Calif., Chamberlain Slough

near............................. 247

San Joaquin River near............... 219

El Toro, Calif., Aliso Creek at........ 42

Eleanor Creek near Hetch Hetchy, Calif. 266 

Elsinore, Calif., Elsinore Lake at..... 80

San Jacinto River near............... 79

Elsinore Lake at Elsinore, Calif....... 80

Enterprise, Calif., Palermo Canal at... 357 

South Fork Feather River af.......... 355

Etiwanda, Calif., Day Creek near....... 75

Exchequer, Calif., Lake McClore at..... 252

Merced River at...................... 253

Fair Oaks, Calif., American River at... 379 

Pall Brook, Calif., Santa Margarita

River near....................... 36

Fall Creek at Copco, Calif.............. 441

Fall River Mills, Calif., Pit River at. 319 

Falls Creek near Hetch Hetchy, Calif... 263 

Feather River at Nicolaus, Calif....... 343

Middle Fork, at Bidwell Bar, Calif... 354 

below Sloat, Calif................. 353

near Clio, Calif................... 352

near Oroville, Calif................. 342

North Fork, at Big Bar, Calif........ 341

near Prattville, Calif............. 340

South Pork, at Enterprise, Calif..... 355

West Branch,- near Yankee Hill, Calif. 349 

Feather River Basin, Calif. r gagingstation records in..............339-376

Fillmore, Calif., Flllmore Irrigation

Co.'s canal near................. 129

Sespe Creek near..................... 128

Fillmore Irrigation Co.'s canal near

Fillmore, Calif.................. 129
INDEX 459

Pine Gold Creek near Friant, Calif...... 237

Fish Creek near Duarte, Calif.......... 3, 94

Fish Lake, Oreg., Cascade Canal near... 436 

Fivemile Creek, Oreg., discharge

measurement or................... 455

Floods, special reports on............. II

Florence Lake, Calif., South Fork San

Jbaquin River near............... 224

near Big Creek, Calif..........:..... 223

Fontana, Calif., Lytle Creek near...... 69-70

Fontana pipe line. See Lytle Creek

near Fontana.

Fort Creek, Oreg., discharge measurement of......:................... 456

Fort Jones, Calif., Scott River near... 446 

Four-mile Lake Reservoir, Oreg., contents

of............................... 434

Fremont Ford Bridge, Calif., San

Joaquin River afA .....'......... 880

Fresno River near DauKsn, Calif....... 245

near Knowles, Calif.................. 244

Fresno River Basin, Calif., gagingstation records in..............244-245

Friant, Calif., Cottonwood Creek near.. 241 

Fine Gold Creek near................. 237

Friant-Kern Canal at................. 240

Little Dry Creek near................ 242

Madera Canal near.........^.........238-239

Millerton Lake at.................... 215

San Joaquin River below.............. 216

Friant-Kern Canal at Friant, Calif..... 240

Fullerton, Calif., Brea Creek at....... 101

Brea Creek near...................... 100

Fullerton Creek at................... 102

Fullerton Creek at Fullerton, Calif.... 102

below Fullerton Dam, near Brea, Calif. 101

Gait, Calif., Dry Creek near........... 300

Garey, Calif., Sisquoc River near...... 162

Georgetown, Calif., Georgetown ditch

near......:.........,...........383,385

Pilot Creek near..................... 384

Rubicon River near................... 382

Georgetown ditch above Pilot Creek,

near Georgetown, Calif........... 383

near Georgetown, Calif............... 385

Glandora, Calif., Dalton Creek near.... 96

Little Dalton Creek near............. 97

Goleta, Calif., Atascadero Creek near.. 138 

San Jose Creek near.................. 139

Goodyears Bar, Calif., North Fork Yuba

River below...................... 364

Goose Lake Basin, Oreg., gaging-station

records in......................307-308

Graniteville, Calif., Bowman Lake near. 368 

Graton, Calif., Laguna de Santa Rosa

near............................. 419

Greenspot pipe line near Mentone,

Calif............................ 53

Guadalupe, Calif., Los Capitancillos

Creek at......................... 185

Santa Maria River at................. 158

Guadalupe River at San Jose, Calif..... 184

Guadalupe River Basin, Calif., gagingstation records in.............. 183-187

Guejito Creek at Pasqual, Calif........ 28

near San Pasqual, Calif.............. 87

Guenoc, Calif., Putah Creek near....... 406

Guerneville, Calif., Russian River at.. 416

Haines Creek near Tujunga, Calif....... 112

Hamilton City, Calif., Stony Creek near 337

Hansen Dam, Calif., Tujunga Creek below 110

Harris, Calif., San An-tonio Creek at... 156

Hat Creek near Hat Creek, Calif........ 324

Hayward, Calif., San Lorenzo Creek at.. 191

Healdsburg, Calif., Russian River near. 415

Hemet, Calif., Bautista Creek near..... 81

Hetch Hetehy, Calif., Cherry Creek near 264

Eleanor Creek near................... 266

Falls Creek near..................... 263

Hetch Hetchy Reservoir at............ 258

Lake Eleanor neap.................... 2&5

Tuolumne River near.................. 259

Hetch Hetchy Reservoir at Hetch Hetchy,

Calif............................ 258

Highland, Calif., City Creek near...... 65-66

City Creek Water Co.'s canal near.... 67

Hodges Reservoir, Calif., Colorado

inflow to........................ 452

Hoopa, Calif., Trinity River near...... 4&0

Hopland, Calif. f Russian River near.... 414

Hopper Creek near Piru, Calif......j... 126

Huasna River near Santa Maria, Calif... 160 

Hullville, Calif., Eel River at........ 421

Lake Pillsbury at.................... 420

Huntington Lake, Calif., Big Creek

below............................ 230

near Big Creek, Calif................ 229

Huntington-Shaver- conduit at outlet,

Calif............................ 233

Hyatt Prairie Reservoir, Oreg., contents of......................... 434

Ice House, Calif-., South Fork Silver

Creek near....................... 396

Igo, Calif., Clear Creek near;......... 328

Indian Creek near Crescent Mills,

Calif............................ 346

Isabella, Calif., South Fork Kern River

st............................... 200

Isabella dam site, Calif., Kern River

below............................ 194

Jacksonville, Calif., Woods Creek near. 269

James bypass near San Joaquin, Calif... 243

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

Jenny Lind, Calif., Calaveras River at. 284

Kamkaun (McCready) Spring, Oreg., discharge measurement of............ 456

Kaweah River near Three Rivers, Calif.. 206 

North Fork, at Kaweah, Calif......... 207

Keddie, Calif., Spanish Creek at....... 347

Keenbrook, Calif., Cajon Creek near.... 72

Lone Pine Creek near................. 73

Keene Creek at Hyatt Prairie, near

Ashland, Oreg.................... 443

discharge measurement of............. 466

Keene Creek Canal near Ashland, Oreg... 444 

Kelsey Creek near Kelseyville, Calif... 404 

Kelseyville, Calif., Kelsey Creek near. 404 

Kennedy Meadows, Calif., Middle Fork

tanislaus River at.............. 372

Keno, Oreg., Klamath River at,......... 431

Keno Canal at Klamath Falls, Oreg...... 438

Kerekhoff powerhouse, Calif., San

Joaquin River below.............. 214

Kern River below Isabella dam site,

Calif............................ 194

near Bakersfield, Calif............^195-196

near Kemville, Calif..........'.... .192-193

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

near Onyx, Calif........'........... 199

Kern River Basin, Calif., gagingstation records in.......;....'. .192-200

Kern River No. 3 Canal near Kernville,

Calif............................ 197

Kernville, Calif., Kern River near....192-193

Kern River No. 3 Canal near.......... 197

Keswick, Calif., Sacramento River at... 311 

Kings County, Calif., Tulare Lake in... 200 

Kings River above North Fork, Calif.... 209

at Piedra, Calif..................... 210

North Fork, below Rancheria Creek,

Calif............................. 212

near Cliff Camp, Calif............. 211

Kirkwood, Calif., Silver Lake Outlet

near............................. 390

Twin Lakes Outlet near............... 391

Klamath Falls, Oreg., "A" Canal at..... 437

Keno Canal at........................ 438

Link River at........................ 430

Upper Klamath Lake near.............. 429

Klamath River at Keno, Oreg............ 431

at Somesbar, Calif............... t ... 433

below Fall Creek, near Copco, Calif.. 432 

diversion from,, to Lost River near

Olene, Oreg...................... 440

Klamath River Basin, Calif.-Oreg., discharge measurements in..........455-456

gaging-station records in........... .428-450

smaller reservoirs in................ 434

Knights Ferry, Calif., Oakdale Canal

near............;...........,.... 283

South San Joaquin Canal near..."......" 282

Knights Landing, Calif., Sacramento

River at......................... 316

Knowles, Calif., Fresno River near..... 244

, Calif., El Dorado Canal near... 392
460 INDEX

Kyburz, Calif., South Pork American 

River near..................... 386

La Brea Creek, Calif., discharge

measurements of.................. 454

near Sisquoc, Calif.................. 162

La Grange, Calif., Don Pedro Reservoir

near............................. 260

Modesto Canal near................... 270

Tuolumne River near.................. 261

Turlook Canal near................... 271

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

discharge measurements of............ 454

Laguna de Santa Rosa near Graton,

Calif............................ 419

Lake Almanor near Prattville, Calif.... 339

Lake Eleanor near Hetoh Hetchy, Calif.. 265 

Lake McClure at Exchequer, Calif....... 252

Lake Pillsbury at Hullville, Calif..... 420

Lakeport, Calif., Clear Lake at........ 400

Lakeview, Oreg., Cottonwood Creek near. 308 

Drew Creek near...................... 307

Lancha Plana, Calif., Mokelumne River

at............................... 291

Las Flores Creek, Calif., discharge

measurements of.................. 452

Lewiston, Calif., Trinity River at..... 448

Likely, Calif., South Fork Pit River

near............................. 323

Lilyglen, Oreg., Beaver Creek near..... 442

Link River at Klamath Falls, Oreg...... 430

Little Dalton Creek near Glendora,

Calif............................ 97

Little Dry Creek near Friant, Calif.... 242

Little San Gorgonio Creek near Beaumont.

Calif............................ 60

Little Santa Anita Creek near Sierra

Madre, Calif..................... 118

Little Tujunga Creek near San Fernando

Calif............................ Ill

Lockeford, Calif., Bear Creek near..... 287

Lompoc, Calif., Salsipuedes Creek near. 155 

Santa Ynez River near...........147,148,149

Lone Pine Creek near Keenbrook, Calif,. 73 

Long Barn, Calif., South Fork Stanislaus River near.................. 279

Tuolumne Canal near.................. 281

Long Beach, Calif., Los Angeles River

at............................... 106

Los Alamitos, Calif., San Gabriel River

near............................. 91

Lo's Angeles River at Long Beach, Calif.. 106 

at Los Angeles, Calif................. 104

at Sepulveda Dam, Calif.............. 103

near Downey, Calif................... 105

Los Angeles River Basin, Calif., gagingstation records In..............103-120

Los Banos, Calif., Salt Slough near.... 248

Los Capitancillos Creek at Guadalupe,

Calif............................ 185

Los Gatos Creek below Los Gatos, Calif. 186 

Los Molinos, Calif., Mill Creek near... 332 

Lost Creek near Clipper Mills,-Calif... 356 

Lost River diversion canal near Olene,

Oreg............................. 439

Lower Lake, Calif., Cache Creek near... 401 

North Fork Cache Creek near.......... 3, 405

Lytle Creek, east channel of, at San

Bernardino,.Calif................ 71

near Fontana, Calif.................. 69-70

McCloud River above Shasta Reservoir,

Calif.....'....................... 327

near McCloud, Calif.................. 326

McConnell, Calif., Cosumnes River at.-.. 304 

Madera Canal near Friant, Calif.......238-239

Madrone, Calif., Coyote Creek near..... 188

Malibu Creek at Crater Camp, near

Calabasas, Calif................. 123

Marysville, Calif., Yuba River at...... 361

Matilija Creek above reservoir, near

Matilija, Calif.................. 131

at Matilija, Calif................... 133

discharge measurements of............ 453

North Fork, at Matilija, Calif....... 135

Matilija Reservoir at Matilija, Calif.. 132 

Medley Lakes Outlet near Vade, Calif... 389 

Meeks & Daley Canal near Colton, Calif. 74 

Melones powerhouse, Calif., Stanislaus

River below...................... 275

Melones Reservoir at Melones Dam,

Calif............................ 274

Mendota, Calif., San Joaquin River near 217 

Mentone, Calif., Greenspot pipe line

near............................. 53

Mill Creek near...................... 55

Santa Ana River near................. 43-44

Southern California Edison Co.'s

canal near........................ 52

Mereed River at Bagby, Calif........... 251

at Exchequer, Calif.................. 253

at Happy Isles Bridge, near Yosemite,

Calif............................ 249

at Pohono Bridge , near Yosemite,

Calif............................ 250

near Stevinson, Calif................ 254

Merced River Basin, Calif., gagingstation records In..............249-250

Merced River Slough nAtNewman, Calif. 256 

Mesa Grande , Calif., flJr? Luis Rey

River near........................ 30

Santa Ysabel Creek near.............. 23

Michigan Bar, Calif., Cosumnes River

at............................... 303

Middle Tuolumne River at Oakland Recreation Camp, Calif................ 268

Mill Creek (Sacramento River Basin)

near Los Molinos, Calif.......... 332

Mill Creek (Santa Ana River Basin) near

Craftonville, Calif.............. 54-55

near Mentone, Calif.................. 55

Mill Creek power canal 1 near Craftonville, Calif..................... 57

Mill Creek power canals 2 and 3 near

Craftonville, Calif.............. 56

Millerton Lake at Friant, Calif......... -215

Milton, Calif., Middle Fork Yuba River

at............................... 358

Milton-Bowman tunnel at outlet, Calif.. 362 

Miranda, Calif., South Fork Eel River 

near............................. 426

Mission Creek near Montebello, Calif... 120 

Modesto, Calif., Tuolumne River at..... 262

Modesto Canal near La Grange, Calif.... 270

Mokelumne Peak, Calif., Cold Creek near 295

Mokelumne River at Lancha Plana, Calif. 291

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

Middle Fork, at West Point, Calif.... 297

near Clements, Calif................. 292

near Mokelumne Hill, Calif........... 290

North Fork, below Salt Springs Dam,

Calif............................ 289

South Fork, near West Point, Calif... 298 

Mokelumne River Basin, Calif., gagingstation records in..............288-306

Mono Creek near Vermilion Valley,

Calif............................ 228

Monrovia, Calif., Sawpit Creek near.... 112

Montebello, Calif., Mission Creek near. 120 

Rio Hondo near....................... 114

Monteeito, Calif., Santa Ynez River

near............................. 140

Montgomery Creek, Calif., Pit River

near............................. 322

Morgan Hill, Calif., Uvas Creek near... 178 

Murrieta Creek at Temecula, Calif...... 38

Nacimiento River near San Miguel, Calif. 173 

Napa River near St. Helena, Calif...... 410

Napa River Basin, Calif., gagingstation records in..............410-411

Narrows Dam, Calif., Yuba River at..... 360

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

Newman, Calif., Merced River Slough

near............................. S56

Orestlniba Creek near..... ^........... 857

San Joaquin River near................ 821

Nlcolaus, Calif., Feather River at..... 343

Nlles, Calif., Alameda Creek near...... 190

Nojoqui Creek, Calif., discharge

measurement of................... 454

North Drew Canal, Oreg., diversion by.. 307 

North Fork, Calif., Kings River above.. 209 

North Fork Dam, Calif., North Fork

American River at................ 377

North San Juan, Calif., Oregon Creek

near............................. 363

Novato Creek near Novato, Calif.......'. 413

Oakdale Canal near Knights Ferry, Calif. 283
IHDEX 461

Oakland Recreation Camp, Calif., Middle

Tuolianne River at................

South Pork Tuolumne River near.......

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

Olene, Oreg., diversion from Klamath

River to Lost River near.........

Lost River diversion canal near......

G'Neill ditch near Ysidora, Calif......

Onyx, Calif., South Pork Kern River

near..............................

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

Oregon-Creek, Calif., Middle Pork Yuba

River above......'................

near North San Juan, Calif...........

Orestlmba Creek near Seaman, Calif.....

Oroville, Calif., Feather River near...

204

Pacheco Creek near Dunnevllle, Calif...

Pacific Oas & Electr^^o-. conduit near

Springville, 4^H..............

Pacific Sas Sc ElectrTBK., conduit No. 

3 near Crane Valley Reservoir, 

Calif. ........... ^.....,........ 235

Pacoima Creek near San Fernando, Calif. 107 

Pajaro River near Chlttenden, Calif.... 176

Pajaro River Basin, Calif. ,. gagingstation records In.............. 176-180

Pala, Calif., San Euis Hey River near.. 31,32 

Palermo Canal at Enterprise, Calif..... 357

Pardoe Camp, Calif., Bear River at..... 296

Pasadena, Calif., Arroyo Seco near..... 113

Eaton Creek near..................... 119

Paskenta, Calif., Elder -Creek near..... 333

Thomes Creek at...................... 334

Paso Robles, Calif., Sallnas River at.. 169 

Petaluma Creek nesir Petaltmia, Calif.... 412

Philadelphia Canal near Strawberry,

Calif............................ 280

Pico, Calif., San Gabriel River at..... 91

Piedra, Calif., Kings River at......... 210

Pilot Creek near Georgetown, Calif..... 384

Piru, Calif., Hopper Creek near..;..... 126

Piru Creek near...................... 125

Piru Creek near Piru. Calif............ 125

Pit River at Big Bend, Calif........... 321

.at Fall River Mills, Calif........... 319

below Pit Ho. 4 Dam, Calif........... 320

near Canby, Calif.................... 318

near Montgomery Creek, Calif......... 322

South Pork, near Likely, Calif....... 323

Pit River Basin, Calif., gaging-station

records in...... '. .............. .318-327

Pitman Creek below Tamarack Creek,

Calif............................ 231

Placerville, Calif., Silver Creek near. 395 

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

Plunge Creek near Bast Highlands, Calif; 58 

Pollack Pines, Calif., Sly Park Creek 

near.............................

Pprterville, Calif., Tule River near... 203 

Potter Valley, Calif., Eel River near.. 422 

Potter Valley powerhouse tailrace

near............................. 424

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 424

Pozo, Calif., Salinas Reservoir near... 166 

Salinas River near................... 165

Tore Creek near...................... 172

Prado, Calif., Santa Ana River near.... 49,50

Prattville, Calif., Butt CHeek near...344,345 

Lake Almanor near..................... 339

Horth Pork Feather River near........ 340

Publications on stream flow by Geological Survey....................... 6-9,H

by State agencies..;.....;..,........ 10-11

Putah Creek, Ca,lif., discharge measurements of......................... 455

near Davis, Calif...................408-409

near Guenoc, Calif................... 406

near Winters; Calif.................. 407

Ramona, Calif., Santa-Maria Creek near. 29 

Santa Ysabel Creek near.............. 24

Raneheria Creek, Calif., North Fork

Kings River below................ 212

Rattlesnake Bridge, Calif., North Pork

American River at................ 378

Red Bluff, Calif., Antelope Creek near. 331 

Sacramento River near................ 312

Redding, Calif., Shasta Reservoir near. 310

Page Page

Redlands, Calif., Sart Timoteo Creek 

268 near............................. 59

267 Rio Hondo near Downey, Calif........... 115

33 near Montebello, Calif............... 114

Ripon, Calif., Stanislaus River at..... 276

440 Riverside.Sewage Treatment Plant,

439 Calif., diversion from. ........... 453'

33 Rogers Creek near Azusa, Calif......... 93

Rubicon River near Georgetown, Calif... 382 

199 Runoff In inches, definition of;....... 1

208 Russian River at Guerneville, Calif.... 416

East Fork, near Calpella, Calif...... 417

359 near Healdsburg, Calif............... 415

363 near Hopland, Calif................... 414

25? Russian River Basin, Calif., gaglng342 station records in..............414-419

177 Sacramento, Calif., American River at.. 380 

Sacramento River at Butte City, Calif.. 313 

at Colusa, Calif.................".... 314

at Delta,- Calif...................... 3, 309

at Keswick, Calif.................... 311

at Knights Landing, Calif............ 316

at Verona, Calif...................... 317

below Milkins Slough, Calif.......... 315

near Red Bluff, Calif................ 312

Sacramento River Basin, Calif., gagingstation records in..............309-317

St Helena, Calif., Conn Creek near.... 411

Napa River near...................... 410

Salinas Reservoir near Pozo, Calif..... 166

Salinas River above Pilitas Creek, near

Santa Margarita, Calif........... 167

at Paso Robles, Calif................ '169

near Bradley, Calif.................. 170

near Pozo, Calif..................... 165

near Santa Margarita, Calif.......... 168

near Spreckels, Calif..............;. 171

Salinas River Basin, Calif., gagingstation records in.............. 165-175

Salmon Palls, Calif., Webber Creek near 398 

Salmon River at Somesbar, Calif........ 447

Salsipuedes Creek, Calif., discharge

measurements of.................. 454

near Lompoc, Calif.........'.......... 155

Salt Slough near Los Banos, Calif...... 248

Salt Springs Dam, Calif., North Pork

Mokelumne River below............ 289

Tiger Creek powerhouse conduit below. 294 

Salt Springs Reservoir near West Point,

Calif............................ 288

San Antonio Creek (Santa.Ana River

Basin) near Claremont, Calif..... 82-83

San Antonio Creek (tributary to Pacific

Ocean) at Harris, Calif.......... 156

174- San Antonio,River at Pleyto, Calif..... 174

San Benito River near Willow Creek

School, Calif.................... 179

306 San Bernardino, Calif., Devil Canyon

Creek near....................... 68

Lytle Creek (east channel) at........ 71

Santa Ana River near...............». 45

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

South Pork, discharge measurements of 452 

San Dieguito conduit, Calif., discharge

measurement of................... 452

San Dieguito River, Calif., discharge 26 

measurement of................... 452

near San Pasqual, Calif.............. 26

San Dieguito River Basin, Calif.,

gaging-station records in........ 23-29

San Dimar Creek near San Dimas r Calif.. 95 

San Fernando, Calif., Little Tujunga

Creek near....................... Ill

Pacoima Creek near......."............ 107

San Gabriel River at Pico, Calif....... 91

at Spring Street, near Los Alamitos,

Calif............................ 91

below Santa Fe Dam, near Baldwin Park,

Calif...................... M .... 90

East Pork, near Camp Bonita, Cafltf... 88 

near Azusa, Calif.................... 89

West Pork, at Camp Rlncon, Calif..... 92

San Gabriel River Basin, Calif., gagingstation records in............... 88-102

San Jacinto River near Elsinore, Calif. 79 

near Sari Jacinto, Calif.............. 77-78

San Joaquln, Calif., James bypass near. 243 

San Joaquin River above Big Creek,

Calif............................ 213
462 INBEX

San Joaqiiin River at Fremont Ford

Bridge, Calif.................... 280

below Friant, Calif.................. 216

below Kerckhoff powerhouse, Calif.... 214

near Dos Palo«3, Calif................ 218

near El Nido, Calif.................. 219

near Mendota, Calif.................. 217

near Newman, Calif................... 221

near Vernalis, Calif................. 222

South Fork, near Florence Lake, Calif. S24 

tributaries above Fresno River,

gaging-station records on....... .223-243

San Joaquin River Basin, Calif.,

gaging-station records in.......213-222

San Jose, Calif., Guadalupe River at... 184 

San Jose Creek (tributary to San Gabriel

River) near Whittier, Calif...... 98

San Jose Creek (directly tributary to

Pacific Ocean) near Goleta, Calif. 139 

San Juan Capistrano, Calif., San Juan

Creek near....................... 40

Trabuco Creek near................... 41

San Juan Creek near San Juan Capistrano,

Calif............................. 40

San Juan Creek Basin,, Calif., gagingstation records in,.............. 40-41

San Juan Mutual Co.'s diversion, Calif.,

discharge measurements of........ 452

San Lorenzo Creek at Hayward, Calif.... 191

San Lorenzo River at Big Trees, Calif.. 181 

San Luis Rey River at Lake Henshaw, near

Mesa Grande, Calif............... 30

at Monserate Narrows, near Pala,

Calif............................ 32

at Oceanside, Calif....,'............, 33

below Pala diversion dam, near Pala,

Calif............................. 31

near Bonsall, Calif.................. 33

San Luis Rey River Basin, Calif.,

gaging-station records in........ 30-33

San Miguel, Calif., Naeimiento River

near............................. 173

San Pasqual, Calif., Guejito Creek at.. 28 

GueJito Creek near................... 27

San Dieguito River near.............. 26

Santa Ysabel Creek near.............. 25

San Timoteo Creek near Redlands, Calif.. 59 

Sand Creek near Orange Cove, Calif..... 208

Santa Agueda Creek near Santa Ynez,

Calif............................ 153

Santa Ana, Calif., Santa Ana River at.. 51 

Santiago Creek at.................... 87

Santa Ana River at Auburndale Bridge,

near Corona, Calif............... 48

at E Street Bridge, near San Bernardino, Calif................... 45

at Hamner Avenue, near Corona, Calif. 47 

at Riverside Narrows near Arlington,

Calif............................ 46

at Santa Ana, Calif.................. 51

below Prado Dam, near Prado, Calif... 49 

discharge measurements of............ 453

near Mentone, Calif.................. 43-44

near Prado, Calif.................... 50

Santa Ana River Basin, Calif., gagingstation records in............... 43-87

Santa Anita Creek near Sierra Madre,

Calif............................ 117

Santa Barbara, Calif., Santa Ynez River

near............................141,142

Santa Clara River near Saugus, Calif... 124 

Santa Clara River Basin, Calif., gagingstation records in.............. 124-130

Santa Cota Creek, Calif., discharge

measurements of.................. 454

Santa Cruz Creek above Stuke Canyon,

near Santa Ynez, Calif........... 151

near Santa Ynez, Calif............... 152

Santa Margarita, Calif., Salinas River

near............................ 167,168

Santa Margafita River at Ysidora, Calif. 37 

near Fall Brook, Calif............... 36

Santa Margarita River Basin, Calif.,

gaging-station records in........ 34-39

Santa Maria, Calif., Alamo Creek near.. 159 

Cuyama River near.................... 158

Huasna River near.................... 160

Santa Maria Creek near Raraona, Calif... 29

Santa Maria River at Guadalupe, Calif.. 158

discharge measurements of............ 454

Santa Maria River Basin, Calif., gagingstation records in..............157-163

Santa Paula Creek near Santa Paula,

Calif............................ 130

Santa Rosa Creek, Calif., discharge

measurements of.................. 454

Santa Ynez, Calif., Santa Agueda Creek

near............................. 153

Santa Cruz Creek near...... .........151,152

Santa Ynez River near...............143,144

Santa Ynez River above Gibraltar Dam,

near Santa Barbara, Calif........ 141

at barrier, near Surf, Calif......... 150

at H Street, near Lompoc, Calif...... 149

at Jameson Lake, near Montecito,

Calif............................ 140

at narrows, near Lompoc, Calif....... 147

at Solvang, Calif.................... 145

below Gibraltar Dam^aear Santa

Barbara, Calif jM^ ............. 142

below Los Laureles^MPon, near Santa

Ynez, Calif...................... 143

discharge measurements of............ 454

near Buellton, Calif................. 146

near Lompoe, Calif................... 148

near Santa Yne«, Calif............... 144

Santa Ynez River Basin, Calif., gagingr

station records in..............140-155

Santa Ysabel Creek near Mesa Grande,

Calif............................ 23

near Raraona, Calif................... 24

near San Pasqual, Calif.............. 25

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

Santiago Creek at Santa Ana, Calif..... 87

at Santiago Dam, near Villa Park.

Calif............................ 85

near Villa Park, Calif............... 86

Saratoga, Calif., Campbell Creek at.... 187

Saugus, Calif., Santa Clara River near. 124 

Sawpit Creek near Monrovia, Calif...... 116

Scotia, Calif., Eel River at........... 423

Scott and Sand Creek Canals, Oreg.,

discharge measurement of......... 455

Scott River near Fort Jones, Calif..... 446

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......................... 103

Sespe Creek near Fillmore, Calif....... 128

near Wheeler Springs, Calif.......... 127

Sevenmile Creek, Oreg., discharge

measurement of................... 456

diversion from....................... 456

Shasta Heservoir, Calif., McCloud. River

above............................ 327

near Redding, Calif.................. 310

Squaw Creek above.................... 325

Shasta River near Yreka, Calif......... 445

Shaver Lake near Big Creek", Calif...... 232

Sierra Madre, Calif., Little Santa

Anita Creek near................. 118

Santa Anita Creek near............... 117

Silver Creek at Union Valley, Calif.... 394

near Placerville, Calif............... 395

South Fork, near Ice House, Calif.... 396

Silver Lake Outlet near KirJwood, Calif. 390

Sisquoc, Calif., La Brea Creek near.,.. 162

Sisquoc River near................... 161

Tepusquet Creek near................. 163

Sisquoc River near Garey, Calif........ 162

near Sisquoc, Calif.................. 161

Sloat, Calif., Middle Fork Feather

River below1;...................... 353

Sly Park Creek near Pollack Pines,

Calif............................ 306

Smartville, Calif., Deer Creek near.... 363

Smith River near Crescent City, Calif.. 451 

Soledad, Calif., Arroyo Seco near...... 175

Solvang, Calif., Santa Ynez River at... 145 

Somesbar, Calif., Klaraath River at..... 433

Salmon River at...................... 447

South San Joaquin Canal near Knights

Ferry, Calif..................... 282

Southern California Edison Co.'s canal 

below power plant Ho. 2, near 

Mentone, Calif.................... 52

Southern California JJdison Co. ! s conduit near Clareraont, Calif....... 84
INDEX 463

Spanish Creek at Keddie, Calif......... 34?

Spencer Creek, Oreg., discharge j

measurement' of................... 456)

Sprague River near Chiloqtiin, Oreg..,.. 435 

Spreckels, Calif., Salinas River near.. 171 

Spring Creek, Oreg., discharge measurement of.......................... 455

Spring Valley ditch near Yankee Hill,

Calif....................... ... 351;

Springville, Calif., North Pork of

Middle Fork Tule River near...... 202

Pacific Gas & Electric Co. conduit '

near............................. .' 204

Squaw Creek above Shasta Reservoir,

Calif............................ 325

Stage-discharge relation, definition of 1 

Stanislaus River at Ripon, Calif......; 276

below Melones powerhouse, Calif...... 275

Middle Pork, at Kennedy Meadows, ' Calif..........*£,.............. 272

Stanislaus River, Midtfre Fork, at San

Bar Plat, near Avery, Calif...... 273

North Pork, near Avery, Calif........ 277

South Pork, at Strawberry, Calif..... 278

near Long Barn, Calif.............. 279

Stanislaus River Basin, Calif., gagingstation records in..............272-283

Stevens Creek near Cupertino, Calif,... 182 

Stevinson, Calif., Merced River near.-.. 254 

Stockton diverting canal at Stockton,

Calif...............:............ 286

Stony Creek near Hamilton City, Calif.. 337 

Strawberry, Calif., Philadelphia Canal

near............................. 280

South Pork Stanislaus River at....... 278

Strawberry Creek near Arrowhead Springs,

Calif.-. .......................... 63

Success, Calif., South Pork Tule River

near............................. 205

Sunland, Calif., Tujunga Creek near.... 109

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

Sycan River, Oreg., discharge measurement of............ .............. 456

Tamarack Creek, Calif., Pitman Creek

below............................ 231

Tecate Creek, Calif., discharge

measurement of................... 452

Tecolate Canyon Creek, Calif., discharge measurements of........... 453

Temecula, Calif., Murrieta Creek at.... 38 

Temecula Creek near.................. 34,35

Temecula Creek at Nigger Canyon, near

Temecula, Calif, 

at Railroad Canyon, near Temecula, 

Calif...........................

discharge measurements of...........

Temescal Creek near Corona, Calif.....

Tenaya Creek near Tosemite, Calif.....

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....j............

near Dulzura, Calif.................

near Nestor, Calif..................

Tia Juana River Basin, Calif., gaging34

35 

452

81 

255 

163 

1-2 

334

206

452

17

18

station records in............... 16-20 Willow Creek, North Fork, below Crane

Willow Creek School, Calif., San Benito

River near.

Winters, Calif., Putah Greek near..... 

Wood River, Oreg., discharge measurement of.

Tiger Creek powerhouse conduit below

Salt Springs Dam, Calif.......... 294

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

Topanga Creek near Topanga Beach, Calif. 122 

Toro Creek near Pozo, Calif............ 172

Trabuco Creek near San Juan Capistrano,

Calif............................ 41

Tres Pinos Creek near Tres Pinos, Calif. 180

Trinity River at Lewiston, Calif....... 448 -Woodbridge Canal at Woodbridge, Calif.

- - - Woodland, Calif., Yolo bypass near.....

Woods Creek near Jacksonville, Calif... 

Work, division of.

near Douglas City, Calif............. 449

near Hoopa, Calif 450

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

Tujunga Creek below Hansen Dam, Calif..

near Colby Ranch, Calif..............

near Sunland, Calif..................

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

Tulare Lake Basin, Calif., gagingstation records in..............200-212

Tule River near Porterville, Calif..... 203

North Fork of Middle Fork, near

Springville, Calif.,.............. 202

112

110

108

109

200

Tule River, South Pork, near Success,

Calif.

Page

205

Tuolumne-Canal near Long Barn, Calif.,. 281 

Tuolumne River above La Grange Dara,

near La Grange, Calif............ 261

at Modesto, Calif.................... 268

near Hetch Hetchy, Calif............. 259

South Fork, near Oakland Recreation

Camp. Calif...................... 267

Tuolumne River Basin, Calif., gagingstation records in..............258-271

Turlock Canal near La Grange, Calif.... 271

Twin Lakes Outlet near Kirkwood, Calif.

"Onion Valley, Calif., Silver Creek at.. 

Upland, Calif., Cucamonga Creek near... 

Upper Klamath Lake near Klaaath Falls,

Oreg

391

394

76

429

178

388

389

285 

427 

157 

136 

134 

134 

Ventura fliver Basin, Calif., gagingstation records in............... 131-136

227

228

Uvas Greek 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.....

Ventura River near...................

Ventura River near Ventura, Calif.

Vermilion Valley, Calif., Bear Creek

near. 

Mono Creek near.

Vernalis, Calif., San Joaquin River

222

Verona, Calif., Sacramento River at.,.. 317

Villa Park, Calif., Santiago Creek

near.......... .................. 85,86

Vina, Calif., Deer Creek near.......... 335

Virginia, Cal^f., Dry Creek at......... 373

Ward tunnel at intake, Calif........... 225

at outlet, Calif..................... 226

Warm Creek near Colton, Calif.......... 61-62

rising water east of, discharge 

measurements of.

Washington, Calif., South Fork Yuba

River near.

Waterman Canyon Greek near Arrowhead

Springs, Calif...................

Webber Creek near Salmon Palls, £alif..

West Point, Calif., Middle Fork 

Mokelumne River at.

453

367

64

398

297 

Salt Springs Reservoir near.......... 288

South Pork Mokelumne River near,.....

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

Wheeler Springs, Calif., Sespe Creek

near.............................

¥hiskey Creek, Oreg., discharge

measurement of.

298

375

127

456

201

393

98

315

428 

discharge measurement of............. 455

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

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

Whittier, Calif., San Jose Creek near., 

Wilkins Slough, Calif., Sacramento 

River below.

Williamson River below Sprague River

near Chiloquin, Oreg.

Valley Reservoir, Calif.

Woodbridge, Calif., Mokelumne River at. 

Woodbridge Canal at.

scope of. 

Yankee Hill, Calif., Coneow Creek

234

179

407

456

293

299

299

399

269

15

1

350 

Spring Valley ditch near............. 351

West Branch Feather River near....... 349

Yolo, Calif., Cache Creek at........... 403

Yolo bypass near Woodland,

Calif............................ 399