Quality of

Surface Waters of the 

United States, 

1966

Parts 9-11. Colorado River Basin to Pacific 

Slope Basins in California

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1995

Prepared in cooperation with the States 

of California, Idaho, New Mexico, 

Oregon, Utah, Wyoming, U.S. Bureau 

of Reclamation, and with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1971
UNITED STATES DEPARTMENT OF THE INTERIOR 

ROGERS C. B. MORTON, Secretary

GEOLOGICAL SURVEY

W. A. Radlinski, Acting Director

of Congress catalog card No. GS 43-68

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

Washington, D.C. 20402 - Price $3 (paper cover)

Stock Number 2401-1169
PREFACE

This report was prepared by the U.S. Geological Survey in cooperation with the States of California, Idaho, New Mexico, 

Oregon, Utah, Wyoming, Bureau of Reclamation, and with other 

agencies, by personnel of the Water Resources Division, E. L. 

Hendricks, chief hydrologist, G. W. Whetstone, assistant chief 

hydrologist for Scientific Publications and Data Management, 

under the general direction of G. A. Billingsley, chief, Reports 

Section, and B. A. Anderson, chief, Data Reports Unit.

The data were collected under supervision of district chiefs, 

of the Water Resources Division, as follows:

Theodore Arnow.......................Salt Lake City, Utah

H. M. Babcock.................................Tucson, Ariz.

W. L. Burnham...................................Boise, Idaho

W. E. Hale..............................Albuquerque, N. Mex.

S. F. Kapustka................................Portland, Oreg.

R. S. Lord..................................MenloPark,Calif.

E. A. Moulder...................................Denver, Colo.

L. A. Wiard....................................Cheyenne, Wyo.

G. F. Worts, Jr..........................Carson City, Nev.

Ill

CONTENTS

Page

Preface......................................... Ill

List of Water-Quality stations, in downstream

order, for which records are published.... VII

Introduction. ................................... 1

Collection and examination of data.............. 5

Chemical quality.............................. 5

Temperature................................... 6

Sediment...................................... 6

Expression of results ........................... 8

Composition of surface waters................... 11

Mineral constituents in solution.............. 12

Silica...................................... 12

Aluminum.................................... 12

Iron........................................ 12

Manganese................................... 12

Calcium..................................... 13

Magnesium................................... 13

Strontium................................... 13

Sodium and potassium........................ 13

Lithium..................................... 14

Bicarbonate, carbonate and hydroxide........ 14

Sulfate..................................... 14

Chloride.................................... 15

Fluoride.................................... 15

Nitrate..................................... 15

Phosphate................................... 16

Boron....................................... 16

Dissolved solids............................ 16

Chromium.................................... 16

Nickel and cobalt........................... 17

Copper...................................... 17

Lead........................................ 18

Zinc........................................ 18

Barium...................................... 18

Bromide..................................... 19

Iodide...................................... 19

Properties and characteristics of water....... 19

Hardness. ................................... 19

Acidity..................................... 20

Sodium adsorption ratio..................... 21

Specific conductance........................ 21

V
VI CONTENTS

Composition of surface waters--Continued 

Properties and characteristics of

water- Continued Page

Hydrogen-ion concentration.................. 21

Color....................................... 22

Oxygen consumed............................. 23

Dissolved oxygen............................ 23

Biochemical oxygen demand................... 23

Chemical oxygen demand...................... 23

Organics.................................... 23

Temperature................................. 24

Turbidity.. 0 ................................ 25

Sediment.................................... 26

Streamflow...................................... 27

Publications.................................... 27

Cooperation..................................... 29

Division of work................................ 30

Literature cited................................ 31

Index........................................... 721

ILLUSTRATIONS

Page

Figure 1. Map of the United States showing 

basins covered by the six water-supply 

papers of quality of surface waters in 

1966........................................ 2

Figure 2. Map of Great Salt Lake showing

locations of sites where data were obtained 

during 1966 water year...................... 270
WATER-QUALITY STATIONS, IN DOWNSTREAM 

ORDER, FOR WHICH RECORDS ARE PUBLISHED

[Letters after station name designate type of data: (a), chemical; 

(t) 3 water temperature; (s) 3 sediment]

COLORADO RIVER BASIN Page 

Colorado River at Hot Sulphur Springs,

Colo. (ct).............................. 34

EAGLE RIVER BASIN

Eagle River at Gypsum, Colo. (ct)........... 37

Colorado River near Glenwood Springs, Colo.

(ct).................................... 41

ROARING FORK RIVER BASIN

Roaring Fork River at Glenwood Springs,

Colo. (ct)............................ 44

Colorado River near Cameo, Colo. (ct)......... 47

GUNNISON RIVER BASIN

Gunnison River near Grand Junction, Colo.

(ct).................................. 50

Colorado River below Colorado-Utah State

line (ct)............................... 53

DOLORES RIVER BASIN

Dolores River near Cisco, Utah (ct)......... 56

Colorado River near Cisco, Utah (cts)......... 60

GREEN RIVER BASIN 

Green River:

New Fork River near Big Piney, Wyo. (ct).. 66

Dry Piney Creek near Big Piney, Wyo. (ts). 69

Green River near La Barge, Wyo. (ct)........ 72

Green River near Green River, Wyo. (cts).... 76

Blacks Fork near Lyman, Wyo. (ct)......... 83

Hams Fork near Granger, Wyo. (c)........ 87

Blacks Fork near Little America, Wyo. (ct) 88 

Henrys Fork at Linwood, Utah (ct)......... 93

Green River near Greendale, Utah (ct)....... 97

Yampa River near Maybell, Colo. (ct)...... 100

Little Snake River near Baggs, Wyo. (c). 104 

Little Snake River above Lily, Colo.

(ct).............................. 105

Green River near Jensen, Utah (cts)......... 109

Duchesne River near Randlett, Utah (ct)... 116 

White River near Watson, Utah (ct)........ 120

Green River near Ouray, Utah (cts).......... 124

Price River at Woodside, Utah (ct)........ 130

Green River at Green River, Utah (cts)...... 134

San Rafael River near Green River, Utah

(ct)................................ 140

VII
VIII WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER

COLORADO RIVER BASIN Continued

Colorado River Continued Page 

SAN JUAN RIVER BASIN 

San Juan River: 

Los Pinos River:

Vallecito Creek near Bayfield, Colo.

(cts)............................. 144

San Juan River near Archuleta, N. Mex. (ct). 147 

San Juan River above Animas River, at

Farmington, N. Mex. (c)............... 149

Animas River at Farmington, N. Mex. (cts). 150 

San Juan River at Farmington, N. Mex. (ct).. 156 

San Juan River at Shiprock, N. Mex. (cts)... 160 

San Juan River near Bluff, Utah (cts)....... 166

Colorado River at Lees Ferry, Ariz. (cts)..... 173

PARIA RIVER BASIN

Paria River at Lees Ferry, Ariz. (cts)...... 177

LITTLE COLORADO RIVER BASIN

Little Colorado River at Cameron, Ariz.

(cts)................................. 182

Colorado River near Grand Canyon, Ariz. (cts). 187 

BRIGHT ANGEL CREEK BASIN 

Bright Angel Creek near Grand Canyon, Ariz.

(c)................................... 192

VIRGIN RIVER BASIN

Virgin River at Virgin, Utah (s)............ 193

Santa Clara River above Winsor Dam,

near Santa Clara, Utah (s).......... 197

Virgin River at Littlefield, Ariz. (cts).... 201

Lake Mead at Hoover Dam, Ariz.-Nev. (c)....... 208

Colorado River below Hoover Dam, Ariz.-Nev.

(c)............. ........................ 211

Colorado River below Parker Dam, Ariz.-Calif.

(ct)...............,.................... 212

Colorado River below Palo Verde Dam,

Ariz.-Calif, (t) ........................ 214

Colorado River below Cibola Valley, Ariz. (t). 215 

GILA RIVER BASIN 

Gila River near Gila, N. Mex. (cts)......... 216

San Francisco River near Glenwood,

N. Mex. (cs)........................ 221

San Francisco River at Clifton, Ariz. (s). 223 

Gila River at head of Safford Valley, near

Solomon, Ariz. (cts).................. 224

Frye Creek at Thatcher, Ariz. (cs)........ 228

San Pedro River at Charleston, Ariz. (cts) 231 

San Pedro River near Winkelman, Ariz.

(cts)............................... 236

San Pedro River at Winkelman, Ariz. (cts). 239 

Gila River at Kelvin, Ariz. (cts)........... 243

Salt River below Stewart Mountain Dam,

Ariz. (ct).......................... 249

Verde River below Bartlett Dam, Ariz.

(ct).............................. 252

Gila River below Gillespie Dam, Ariz.

(ct).................................. 255
WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER IX

COLORADO RIVER BASIN Continued Page 

DIVERSIONS AND RETURN FLOWS AT AND BELOW

IMPERIAL DAM 

Gila Gravity Main Canal at Imperial Dam,

Ariz.-Calif, (t)...................... 258

All American Canal:

Yuma Main Canal below Colorado River

siphon, at Yuma, Ariz. (ct)......... 259

Miscellaneous analyses of streams in

Colorado River basin.................... 262

THE GREAT BASIN

Great Salt Lake, Utah (c)..................... 264

BEAR RIVER BASIN

Bear River at Border, Wyo. (ct)............. 271

Bear River near Preston, Idaho (c).......... 274

WEBER RIVER BASIN

Weber River at Gateway, Utah (c)............ 275

JORDAN RIVER BASIN

Jordan River at Narrows, near Lehi, Utah (c) 276

Jordan River at 9400 south, near

South Jordan, Utah (c)................ 277

Jordan River at 5800 south, near Murray,

Utah (c).............................. 278

Little Cottonwood Creek near

Salt Lake City, Utah (c)............ 280

Big Cottonwood Creek near Salt Lake City,

Utah (c)............................ 281

Mill Creek near Salt Lake City, Utah (c).. 282 

Jordan River at Salt Lake City, Utah (c).... 283

Parleys Creek at Suicide Rock, near

Salt Lake City, Utah (c)............ 284

Emigration Creek near Salt Lake City,

Utah (c).......................... 285

Red Butte Creek at Fort Douglas, near

Salt Lake City, Utah (ct)........... 286

City Creek above Wasatch Drive, near

Salt Lake City, Utah (c).......... 288

Jordan River at Cudahy Lane, near

Salt Lake City, Utah (c).............. 289

Goggin drain near Magna, Utah (c)........... 290

Kennecott drain near Magna, Utah (c)........ 291

SEVIER LAKE BASIN 

Sevier Lake:

Sevier River below Piute Dam, near

Marysvale, Utah (c)................... 292

Sevier River near Lynndyl, Utah (ct)........ 293

BIG SMOKY AND IONE VALLEYS

South Twin River near Round Mountain, Nev.

(t)................................... 296

ANTELOPE VALLEY

Big Rock Creek near Valyermo, Calif, (t).... 297

HUMBOLDT-CARSON SINK BASIN 

CARSON RIVER BASIN 

East Fork Carson River near Gardnerville,

Nev. (t).............................. 298
X WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER

THE GREAT BASIN Continued

HUMBOLDT-CARSON SINK BASIN Continued

CARSON RIVER BASIN Continued Page 

Carson River near Silver Springs, Nev. (ct). 299 

HUMBOLDT RIVER BASIN 

Humboldt River at Carlin, Nev. (ct)......... 302

Humboldt River near Rye Patch, Nev. (ct).... 305

PYRAMID AND WINNEMUCCA LAKES BASIN

Pyramid Lake:

Truckee River at Floriston, Calif, (ct)..... 308 

Truckee River at Wadsworth, Nev. (t)........ 311

HONEY LAKE BASIN

Susan River at Susanville, Calif, (c)....... 312

ABERT LAKE BASIN

Chewaucan River near Valley Falls, Oreg. (c) 313

Miscellaneous analyses of streams in

The Great Basin......................... 314

PACIFIC SLOPE BASINS IN CALIFORNIA 

SANTA CLARA RIVER BASIN 

Santa Clara River:

Sespe Creek near Wheeler Springs, Calif.

(t)................................. 319

BIG SUR RIVER BASIN

Big Sur River near Big Sur, Calif, (t)...... 320

CARMEL RIVER BASIN

Carmel River near Carmel, Calif, (c)........ 321

SALINAS RIVER BASIN

Salinas River at Paso Robles, Calif, (c).... 322

Nacimiento River near Bryson, Calif, (ts). 323 

Nacimiento River below Nacimiento Dam,

near Bradley, Calif, (c)............ 327

San Antonio River near Lockwood, Calif.

(ts)................................ 328

San Antonio River at Pleyto, Calif, (c)... 331 

Salinas River near Bradley, Calif, (c)...... 332

Arroyo Seco near Greenfield, Calif, (ts).. 333 

Salinas River near Spreckles, Calif, (c).... 337

PAJARO RIVER BASIN 

Pajaro River:

Carnadero Creek:

Uvas Creek near Morgan Hill, Calif, (c). 338 

San Benito River near Willow Creek School,

Calif, (c).......................... 339

Pajaro River at Chittenden, Calif, (c)...... 340

SOQUEL CREEK BASIN

Soquel Creek at Soquel, Calif, (ct)......... 341

SAN LORENZO RIVER BASIN

San Lorenzo River at Big Trees, Calif, (ct). 342

PESCADERO CREEK BASIN

Pescadero Creek near Pescadero, Calif, (c).. 344

COLMA CREEK BASIN

Colma Creek at South San Francisco,

Calif, (s)............................ 345

Spruce Branch at South San Francisco,

Calif, (s^).. ........................ 349
WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER XI

PACIFIC SLOPE BASINS IN CALIFORNIA Continued Page 

GUADALUPE RIVER BASIN 

Guadalupe River:

Los Gatos Creek at Los Gatos, Calif, (c).. 353 

COYOTE CREEK BASIN 

Coyote Creek near Madrone, Calif, (c)....... 354

ALAMEDA CREEK BASIN 

Alameda Creek:

Big Canyon Creek:

Arroyo Valle near Livermore, Calif.

(cts)............................. 355

Alameda Creek near Niles, Calif, (cts)...... 360

BUENA VISTA LAKE BASIN

Kern River near Quaking Aspen Camp, Calif.

(t)................................... 365

Kern River Canal No. 3 near Kernville,

Calif, (t).......................... 366

Kern River at Kernville, Calif, (t)......... 367

Borel Canal below Isabella Dam, Calif.

(t)................................. 368

Kern River near Bakersfield, Calif, (c)..... 369

TULARE LAKE BASIN 

Tulare Lake:

Tule River near Springville, Calif, (ct).... 370

Tule River below Success Dam, Calif, (c).... 372

Middle Fork Kaweah River:

Marble Fork Kaweah River at Potwisha

Camp, Calif, (t).................... 373

Kaweah River at Three Rivers, Calif, (ct)... 374 

Kaweah River below Terminus Dam, Calif.

(c)................................... 376

Kings River above North Fork, near

Trimmer, Calif, (t)................... 377

Big Creek above Pine Flat Reservoir, near

Trimmer, Calif, (c)................. 378

Kings River at Peoples Weir, near

Kingsburg, Calif, (c)................. 378

SAN JOAQUIN RIVER BASIN 

San Joaquin River:

Big Creek below Huntington Lake, Calif.

(t)................................. 379

Willow Creek at mouth, near Auberry,

Calif, (t).......................... 380

San Joaquin River below Kerckhoff

Powerhouse, near Prather, Calif, (t).. 381

San Joaquin River near Mendota, Calif, (c).. 382

Salt Slough near Los Banos, Calif, (c).... 382

San Joaquin River at Fremont Ford Bridge,

Calif, (c)............................ 383

Merced River at Happy Isles Bridge, near

Yosemite, Calif, (t)................ 384

Merced River near Stevinson, Calif, (c)... 385 

San Joaquin River near Crows Landing,

Calif, (c)............................ 385

San Joaquin River near Patterson, Calif.

(c)................................... 386
XII WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER

PACIFIC SLOPE BASINS IN CALIFORNIA Continued

SAN JOAQUIN RIVER BASIN Continued Page 

San Joaquin River near Grayson, Calif, (c).. 387 

Tuolumne River: 

Clavey River:

Lily Creek near Pinecrest, Calif, (t). 388 

Tuolumne River at Hickman, Calif, (c)..... 389

Tuolumne River at Modesto, Calif, (t)..... 390

Tuolumne River at Tuolumne City,

Calif, (c).......................... 391

San Joaquin River at Maze Road Bridge, near

Modesto, Calif, (c)................... 391

Middle Fork Stanislaus River at Hells

Half Acre Bridge, near Pinecrest,

Calif, (t). ......................... 392

Stanislaus River below Goodwin Dam, near

Knights Ferry, Calif, (t)........... 393

Stanislaus River near Ripon, Calif, (c)... 394 

San Joaquin River near Vernalis, Calif.

(cts)................................. 395

San Joaquin River at Mossdale, Calif, (c)... 399 

San Joaquin River at Garwood Bridge, near

Stockton, Calif, (c).................. 399

Calaveras River above New Hogan Dam,

Calif, (c).......................... 400

Calaveras River below New Hogan Dam,

near Valley Springs, Calif, (c)..... 401

Calaveras River at Jenny Lind, Calif, (c). 402 

Calaveras River near Stockton, Calif, (c). 402 

Stockton Ship Channel near Rindge pump

on Rindge Tract, Calif, (c)....... 403

Old River at south tip of Fabian Tract,

near Tracy, Calif, (c).............. 403

Delta-Mendota Canal above Tracy pumping

plant, near Tracy, Calif, (c)....... 404

Delta-Mendota Canal below Tracy pumping

plant, near Tracy, Calif, (ts)...... 405

Delta-Mendota Canal near Mendota, Calif.

(c)................................. 408

Grant Line Canal at Tracy Road Bridge,

Calif, (c). ......................... 409

Old River at Clifton Court Ferry, near

Bethany, Calif, (c)................. 409

Indian Slough near Brentwood, Calif, (c).. 410 

Old River at Orwood Bridge, near Middle

River, Calif, (c)................... 411

Rock Slough near Knightsen, Calif, (c).... 411

Old River at Mandeville Island, Calif.

(c)................................. 412

Mokelumne River near Mokelumne Hill,

Calif, (t).......................... 413

Mokelumne River below Camanche Dam,

Calif, (cts)........................ 414

Mokelumne River at Woodbridge, Calif, (ct) 416 

Cosumnes River at Michigan Bar,

Calif, (cts)...................... 418
WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER XIII

PACIFIC SLOPE BASINS IN CALIFORNIA--Continued 

SAN JOAQUIN RIVER BASIN Continued 

San Joaquin River--Continued

Mokelumne River Continued Page 

Delta cross-channel near Walnut Grove,

Calif, (c). ....................... 422

San Joaquin River at Antioch, Calif, (c).... 423

SACRAMENTO RIVER BASIN

Sacramento River near Mount Shasta, Calif.

(t)................................... 424

Sacramento River at Delta, Calif, (ct)......' 425

North Fork Pit River:

South Fork Pit River near Likely,

Calif, (c). ....................... 427

Pit River near Canby, Calif, (ct)......... 428

Pit River near Montgomery Creek, Calif.

(c)................................. 430

McCloud River above Shasta Lake,

Calif, (c). ....................... 431

Sacramento River at Keswick, Calif, (c)..... 432

Clear Creek near Igo, Calif, (ct)......... 433

Cow Creek:

South Cow Creek near Millville, Calif.

(t)............................... 435

Cow Creek near Millville, Calif, (ct)..... 436

Middle Fork Cottonwood Creek near Ono,

Calif, (s).......................... 438

Cottonwood Creek near Ono, Calif, (c)..... 441

South Fork Cottonwood Creek near

Cottonwood, Calif, (cs)........... 442

Cottonwood Creek near Cottonwood, Calif.

(cts)............................... 449

Battle Creek below Coleman Fish Hatchery,

near Cottonwood, Calif, (cts)....... 454

Sacramento River at Bend, Calif, (c)........ 457

Paynes Creek near Red Bluff, Calif, (c)... 458

Sacramento River near Red Bluff, Calif, (t). 459

Sacramento River at Red Bluff, Calif, (ts).. 460

Red Bank Creek near Red Bluff, Calif, (c). 463

Antelope Creek near Red Bluff, Calif, (c). 464

Antelope Creek near mouth, near

Los Molinos, Calif, (c)............. 465

Elder Creek near Paskenta, Calif, (cs).... 466

Elder Creek at Gerber, Calif, (c)......... 468

Mill Creek at mouth, near Los Molinos,

Calif, (c).......................... 469

Thomes Creek at Paskenta, Calif, (cts).... 470

Thomes Creek near mouth, near Corning,

Calif, (c).. ........................ 474

Sacramento River near Hamilton City,

Calif, (c). ........................... 475

Big Chico Creek near Chico, Calif, (c).... 476

Big Chico Creek at Chico, Calif, (c)...... 477

Stony Creek near Fruto, Calif, (c)........ 478

Stony Creek below Black Butte Dam, near

Orland, Calif, (c).................. 479
XIV WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER

PACIFIC SLOPE BASINS IN CALIFORNIA Continued

SACRAMENTO RIVER BASIN--Continued Page 

Sacramento River at Butte City, Calif, (ct). 480 

Sacramento River at Colusa, Calif, (c)...... 482

Butte Creek near Chico, Calif, (ct)....... 483

Sacramento River above Colusa trough, at

Knights Landing, Calif, (c)........... 485

Colusa drain:

Colusa trough near Colusa, Calif, (c)... 486 

Sacramento Slough near Knights Landing,

Calif, (c). ........................... 487

Middle Fork Feather River (head of

Feather River) : 

Big Grizzly Creek near Portola, Calif.

(ts)................................ 488

Middle Fork Feather River near Clio,

Calif, (t). ........................... 490

Middle Fork Feather River near Merrimac,

Calif, (ct)........................... 491

South Fork Feather River below

Ponderosa Dam, Calif, (ct).......... 493

Feather River:

North Fork Feather River: 

Indian Creek:

Little Grizzly Creek near Genesee,

Calif, (t)...................... 495

Indian Creek near Crescent Mills,

Calif, (cts)...................... 496

North Fork Feather River at Pulga,

Calif, (ct)......................... 498

West Branch Feather River near

Paradise, Calif, (t).............. 500

West Branch Feather River near Yankee

Hill, Calif, (c). ................. 501

Feather River at Oroville, Calif, (cts)..... 502

Feather River near Gridley, Calif, (ts)..... 507

Feather River at Yuba City, Calif, (ts)..... 511

Middle Yuba River above Oregon Creek,

near North San Juan, Calif, (t)..... 519

Oregon Creek near North San Juan,

Calif, (t). ....................... 520

South Yuba River at Jones Bar, near

Grass Valley, Calif, (t).......... 521

Yuba River at Marysville, Calif, (ct)..... 522

Feather River below Shanghai Bend, near

Yuba City, Calif, (c)................. 524

Bear River near Wheatland, Calif, (c)..... 525

Feather River at Nicolaus, Calif, (ct)...... 526

North Fork American River at North Fork

Dam, Calif, (t)....................... 528

Middle Fork American River:

Canyon Creek near Georgetown, Calif, (t) 529 

South Fork American River near Kyburz,

Calif, (t)........................ 529

South Fork American River near Lotus,

Calif, (ct)....................... 530
WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER XV

PACIFIC SLOPE BASINS IN CALIFORNIA Continued 

SACRAMENTO RIVER BASIN--Continued

Sacramento River--Continued Page 

American River at Nimbus Dam, near

Fair Oaks, Calif, (c)............... 532

American River at Fair Oaks, Calif, (t)... 533

American River at Sacramento, Calif, (c).. 534

Sacramento River at Sacramento, Calif, (ts). 535

Sacramento River at Freeport, Calif, (ct)... 540

Yolo Bypass:

Clear Lake (head of Cache Creek): 

Adobe Creek:

Highland Creek below Highland Creek 

Dam, near Kelseyville, Calif. 

(s)........................... 542

Clear Lake at Lakeport, Calif, (c)...... 546

Cache Creek near Lower Lake, Calif, (c). 547 

North Fork Cache Creek near Lower

Lake, Calif, (cs)............... 548

Cache Creek above Rumsey, Calif, (ts)... 550 

Cache Creek near Capay, Calif, (c)...... 554

Putah Creek near Guenoc, Calif, (ts).... 555

Putah Creek near Winters, Calif, (ct)... 557 

Lindsay Slough near Rio Vista, Calif.

(c)... ............................ 559

Sacramento River near Rio Vista, Calif, (c). 560

NAPA RIVER BASIN

Napa River near St. Helena, Calif, (ct)..... 561

SALMON CREEK BASIN

Salmon Creek at Bodega, Calif, (t).......... 563

RUSSIAN RIVER BASIN

Russian River near Ukiah, Calif, (ts)....... 564

East Fork Russian River near Calpella,

Calif, (ts)......................... 568

Lake Mendocino near Ukiah, Calif, (t)..... 571

East Fork Russian River near Ukiah,

Calif, (ts)......................... 572

Russian River near Hopland, Calif, (ct)..... 575

Russian River near Cloverdale, Calif, (ts).. 577

Russian River near Healdsburg, Calif, (ct).. 580

Dry Creek near Cloverdale, Calif, (t)..... 582

Dry Creek near Geyserville, Calif, (ts)... 583 

Russian River near Guerneville, Calif.

(cts) ................................. 587

GARCIA RIVER BASIN

Garcia River near Point Arena, Calif, (t)... 591

NAVARRO RIVER BASIN

Navarro River near Navarro, Calif, (ct)..... 592

NOYO RIVER BASIN

Noyo River near Fort Bragg, Calif, (ct)..... 594

TENMILE RIVER BASIN 

Tenmile River:

Middle Fork Tenmile River near Fort

Bragg, Calif, (t)................... 596

MATTOLE RIVER BASIN

Mattole River near Petrolia, Calif, (ct).... 597
XVI WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER

PACIFIC SLOPE BASINS IN CALIFORNIA--Continued Page 

EEL RIVER BASIN 

Eel River: 

Lake Pillsbury near Potter Valley, Calif.

(t). .................................. 599

Eel River below Scott Dam, near Potter

Valley, Calif, (ts)................... 600

Potter Valley powerhouse tailrace near

Potter Valley, Calif, (cts)......... 602

Eel River near Dos Rios, Calif, (c)......... 606

Outlet Creek near Longvale, Calif, (c).... 607

Eel River above Dos Rios, Calif, (t)........ 608

Middle Fork Eel River above Black Butte

River, near Covelo, Calif, (t)...... 609

Black Butte River near Covelo, Calif.

(cts)............................. 610

Middle Fork Eel River below Black Butte

River, near Covelo, Calif, (cts).... 615

Williams Creek near Covelo, Calif, (c).. 620 

Mill Creek near Covelo, Calif, (c)...... 621

Elk Creek near Hearst, Calif, (ts)...... 622

Middle Fork Eel River near Dos Rios,

Calif, (cts)........................ 624

Eel River at Fort Seward, Calif, (ts)....... 629

Eel River at McCann, Calif, (c)............. 633

South Fork Eel River near Branscomb,

Calif, (ts)......................... 634

South Fork Eel River at Leggett, Calif.

(t)................................. 638

South Fork Eel River near Miranda,

Calif, (ct).. ....................... 639

Eel River at Scotia, Calif, (cts)........... 641

Van Duzen River near Dinsmores, Calif, (t) 646 

Van Duzen River near Bridgeville, Calif.

(cts)............................... 647

MAD RIVER BASIN

Mad River near Forest Glen, Calif, (ts)..... 650

Mad River near Kneeland, Calif, (t)......... 653

Mad River near Arcata, Calif, (cts)......... 654

REDWOOD CREEK BASIN

Redwood Creek at Orick, Calif, (ct)......... 659

KLAMATH RIVER BASIN

Crater Lake near Crater Lake, Oreg. (t)..... 660

Klamath River below Iron Gate Dam, Calif.

(ct).................................. 661

Cottonwood Creek at Hornbrook, Calif, (t). 663 

Shasta River near Yreka, Calif, (ct)...... 664

Klamath River at Klamath River School, near

Hamburg, Calif, (c)................... 666

Scott River near Fort Jones, Calif, (c)... 667

Klamath River near Seiad Valley, Calif, (ct) 668

Salmon River at Somesbar, Calif, (t)...... 670

Klamath River at Orleans, Calif, (ct)....... 671

Trinity River at Lewiston, Calif, (ct).... 673

Trinity River near Burnt Ranch,

Calif, (c)...... .................... 675
WATER-QUALITY STATIONS, IN DOWNSTREAM ORDER XVII

PACIFIC SLOPE BASINS IN CALIFORNIA Continued 

KLAMATH RIVER BASIN Continued 

Klamath River Continued

Trinity River Continued Page 

South Fork Trinity River:

Hayfork Creek near Hyampom, Calif, (t) 676 

South Fork Trinity River below Hyampom,

Calif, (t). ....................... 677

South Fork Trinity River near Salyer,

Calif, (ts)....................... 678

Trinity River at Hoopa, Calif, (cts)...... 682

Blue Creek near Klamath, Calif, (t)....... 687

Klamath River near Klamath, Calif, (ct)..... 688

SMITH RIVER BASIN

Smith River near Crescent City, Calif, (ct). 690 

Miscellaneous analyses of streams in Pacific

slope basins in California.............. 692

QUALITY OF SURFACE WATERS 

OF THE UNITED STATES, 1966

PARTS 9-11 

INTRODUCTION

The quality-of-water investigations of the United States Geological Survey are concerned with chemical and physical characteristics of the surface and ground water supplies of the Nation. 

Most of the investigations carried on in cooperation with State and 

Federal agencies deal with the amounts of matter in solution and 

in suspension in streams.

The records of chemical analysis, suspended sediment, and 

temperature of surface waters given in this volume serve as a 

basis for determining the suitability of waters for various uses. 

The flow and water quality of a stream are related to variations 

in rainfall and other forms of precipitation. In general, lower 

concentrations of dissolved solids may be expected during periods 

of high flow than during periods of low flow. Conversely, the suspended solids in some streams may change materially with relatively small variations in flow, whereas for other streams the 

quality of the water may remain relatively uniform throughout 

large ranges in discharge.

The Geological Survey has published annual records of chemical quality, water temperature, and suspended sediment since 

1941. The records prior to 1948 were published each year in a 

single volume for the entire country, and in two volumes in 1948 

and in 1949. From 1950 to 1958, the records were published in 

4 volumes; from 1959 to 1963 in 5 volumes; and since 1964 in 

6 volumes. The drainage basins covered by the six volumes are 

shown in Figure 1. The shaded area in Figure 1 represents the 

section of the country covered in this volume for the water 

year 1966 (October 1, 1965 to September 30, 1966).

To meet interim requirements, water-quality records have been 

released by the Geological Survey in annual reports, beginning

1
2 QUALITY OF SURFACE WATERS, 1966

with the 1964 water year, by State. These reports are entitled, 

"Water Resources Data for (State), Part 2. Water Quality 

Records." Distribution of these reports is limited and primarily 

for local needs. Any revisions or corrections found necessary 

to the records published in these annual State reports have been 

made and published in this volume without reference.

The records herein are listed by drainage basins in a downstream direction along the main stream. All stations on a 

tributary entering above a mainstream station are listed before 

that station. A station on a tributary that enters between two 

mainstream stations is listed between them. A similar order is 

followed in listing stations on first rank, second rank, and other 

ranks of tributaries. In the list of water-quality stations in the 

front of this volume, the rank of the tributaries is indicated by 

an indention. Each indention represents one rank.

Parts 5-6; WSP 1993 

Parts 7-8; WSP 1994 

Parts 12-16; WSP 1996

Figure 1. Map of the United States showing basins 

covered by the six water-supply papers on quality 

of surface waters in 1966. The shaded part represents the section of the country covered by this 

volume; the unshaded part represents the section 

of the country covered by other water-supply papers.
INTRODUCTION 3

A station number has been assigned as an added means of identification for each stream location where regular measurements 

of water quantity or quality have been made. The numbers have 

been assigned to conform with the standard downstream order of 

listing gaging stations. The numbering system consists of 2 digits 

followed by a hyphen and a 6-digit number. The notation to the 

left of the hyphen identifies the Part or hydrologic region used 

by the Geological Survey for reporting hydrologic data. The number to the right of the hyphen represents the location of the station in the standard downstream order within each of the 16 parts 

(Fig. 1). The assigned numbers are in numerical order but are 

not consecutive. They are so selected from the complete 6-digitnumber scale that intervening numbers will be available for future 

assignments to new locations. The identification number for each 

station in this report is printed to the left of the station name and 

contains only the essential digits. For example, the number is 

printed as 4-0100for a station whose complete indentification number is 04-0100.00.

Descriptive statements are given for each sampling station 

where chemical analyses, temperature measurements, or sediment determinations have been made. These statements include 

location of the station, drainage area, periods of records available, 

extremes of dissolved solids, hardness, specific conductance, temperature, sediment loads, and other pertinent data. Records of 

discharge of the streams at or near the sampling station are included in most tables of analyses.

During the water year ending September 30, 1966, the Geological Survey maintained 307 stations on 181 streams for the 

study of chemical and physical characteristics of surface water. 

Samples were collected daily and monthly at 223 of these locations 

for chemical-quality studies. Samples also were collected less 

frequently at many other points. Water temperatures were measured continuously at 116 and daily at 68 stations. All surface 

water samples collected and analyzed during the year have not 

been included. Single analyses made of daily samples before 

compositing have not been reported. Specific conductance is 

determined and reported for almost all daily samples.

At chemical-quality stations where data are continuously recorded at the stream site (monitors), the records consist of daily 

maximum, minimum, and mean values for each constituent 

measured. More detailed records (hourly values) may be obtained 

by writing the district office listed under Division of Work on 

page 30.
4 QUALITY OF SURFACE WATERS, 1966

Quantities of suspended sediment are reported for 59 stations 

during the year ending September 30, 1966. Sediment samples 

were collected one or more times daily at most stations, depending 

on the rate of flow and changes in stage of the stream. Particlesize distributions of sediments were determined at 72 stations.

Some of the stations for which data are published in this 

volume are included in special networks and programs. These 

stations are identified by their title, set in parentheses, under the 

station name.

Hydrologic bench-mark station is one that provides hydrologic 

data for a basin in which the hydrologic regimen will likely be 

governed solely by natural conditions. Data collected at a benchmark station may be used to separate effects of natural from 

manmade changes in other basins which have been developed and 

in which the physiography, climate, and geology are similar to 

those in the undeveloped bench-mark basin.

International Hydrological Decade (IHD) River Stations provide a general index of runoff and materials in the water balance 

(discharge of water, and dissolved and transported solids) of 

the world. In the United States, IHD Stations provide indices of 

runoff and the general distribution of water in the principal 

river basins of the conterminous United States and Alaska.

Irrigation network stations are water-quality stations located 

at or near certain streamflow gaging stations west of the main stem 

of the Mississippi River. Data collected at these stations are used 

to evaluate the chemical quality of surface waters used for irrigation and the changes resulting from the drainage of irrigated 

lands. Prior to water year 1966, these data were published in 

the annual water-supply paper series, "Quality of Surface Water 

for Irrigation, Western States."

Pesticide program is a network of a regularly sampled 

water-quality stations where additional monthly samples are 

collected to determine the concentration and distribution of 

pesticides in streams whose waters are used for irrigation or 

in streams in areas where potential contamination could result 

from the application of the commonly used insecticides and 

herbicides.

Radiochemical program is a network of regularly sampled 

water-quality stations where additional samples are collected 

twice a year (at high and low flow) to be analyzed for radio-
COLLECTION AND EXAMINATION OF DATA 5

isotopes. The streams that are sampled represent major drainage basins in the conterminous United States.

COLLECTION AND EXAMINATION OF DATA

Quality of water stations usually are located at or near points 

on streams where streamflow is measured by the U.S. Geological 

Survey. The concentration of solutes and sediments at different 

locations in the stream-cross section may vary widely with different rates of water discharge depending on the source of the 

material and the turbulence and mixing of the stream. In general, 

the distribution of sediment in a stream section is much more 

variable than the distribution of solutes. It is necessary to sample 

some streams at several verticals across the channel and especially for sediment, to uniformly traverse the depth of flow. 

These measurements require special sampling equipment to 

adequately integrate the vertical and lateral variability of the 

concentration in the section. These procedures yield a velocityweighted mean concentration for the section.

The near uniformly dispersed ions of the solute load move with 

the velocity of the transporting water. Accordingly, the mean section concentration of solutes determined from samples is a precise measure of the total solute load. The mean section concentration obtained from suspended sediment samples is a less 

precise measure of the total sediment load, because the sediment 

samplers do not traverse the bottom 0.3 foot of the sampling 

vertical where the concentration of suspended sediment is greatest and because a significant part of the coarser particles in many 

streams move in essentially continuous contact with the bed and 

are not represented in the suspended sediment sample. Hence, 

the computed sediment loads presented in this report are usually 

less than the total sediment loads. For most streams the difference 

between the computed and total sediment loads will be small, in the 

order of a few percent.

CHEMICAL QUALITY

The methods of collecting and compositing water samples for 

chemical analysis are described by Rainwater and Thatcher 

(1960, 301 p.). No single method of compositing samples is applicable to all problems related to the study of water quality.
6 QUALITY OF SURFACE WATERS, 1966

Although the method of 10-day periods or the equivalent of three 

composite samples per month generally is practiced, modifications 

usually are made on the basis of dissolved-solids content as indicated by measurements of conductivity of daily samples, supplemented by other information such as chloride content, river 

stage, weather conditions and other background information of the 

stream.

TEMPERATURE

Daily water temperatures were measured at most of the stations at the time samples were collected for chemical quality or 

sediment content. So far as practicable, the water temperatures 

were taken at about the same time each day. Large streams have 

a small diurnal temperature change while small, shallow streams 

may have a daily range of several degrees and may follow closely 

the changes in air temperaure. Some streams may be affected 

by waste-heat discharges. The thermometers used for determining 

water temperature were accurate to plus or minus 0.5°F.

At stations where continously recording thermographs are 

present, the records consist of maximum and minimum temperatures for each day, and the monthly averages.

SEDIMENT

In general, suspended-sediment samples were collected daily 

with depth-integrating cable-suspended samples (U.S. InterAgency, 1963, and 1952.) from a fixed sampling point at one vertical in the cross section. A hand sampler was used at many stations during periods of low flow. Depth-integrated samples were 

collected periodically at three or more verticals in the cross 

section to determine the cross-sectional distribution of the concentration of suspended sediment with respect to that at the daily 

sampling vertical. In streams where transverse distribution of 

sediment concentration ranges widely, samples were taken at two 

or more verticals to define more accurately the average concentration of the cross section. During periods of high or rapidly 

changing flow, samples generally were taken two or more times a 

day.
COLLECTION AND EXAMINATION OF DATA 7

Sediment concentrations were determined by filtrationevaporation method. At many stations the daily mean concentration for some days was obtained by plotting the velocity-weighted 

instantaneous concentrations on the gage-height chart. The plotted concentrations, adjusted if necessary, for cross-sectional 

distribution were connected or averaged by continuous curves to 

obtain a concentration graph. This graph represented the estimated velocity-weighted concentration at any time, and for most 

periods daily mean concentrations were determined from the 

graph. The days were divided into shorter intervals when the 

concentration and water discharge were changing rapidly. During 

some periods of minor variation in concentration, the average 

concentration of the samples was used as the daily mean concentration. During extended periods of relatively uniform concentration and flow, samples for a number of days were composited 

to obtain average concentrations and average daily loads for 

each period.

For some periods when no samples were collected, daily 

loads of suspended sediment were estimated on the basis of water 

discharge, sediment concentrations observed immediately before 

and after the periods, and suspended-sediment loads for other 

periods of similar discharge. The estimates were further guided 

by weather conditions and sediment discharge for other stations.

In many instances where there were no observations for 

several days, the suspended-sediment loads for individual days are 

not estimated, because numerous factors influencing the quantities 

of transported sediment made it very difficult to make accurate 

estimates for individual days. However, estimated loads of suspended sediment for missing days in an otherwise continuous period 

of sampling have been included in monthly and annual totals in 

order to provide a complete record. For some streams, samples 

were collected weekly, monthly, or less frequently, and only rates 

of sediment discharge at the time of sampling are shown.

In addition to the records of quantities of suspended sediment 

transported, records of the particle sizes of sediment are included. The particle sizes of the suspended sediment for many of 

the stations, and the particle sizes of the bed material for some 

of the stations were determined periodically.

The size of particles in stream sediments commonly range 

from colloidal clay (finer than 0.001 mm) to coarse sand or gravel 

(coarser than 1.0 mm). The common methods of particle-size 

analyses cannot accommodate such a wide range in particle size.
8 QUALITY OF SURFACE WATERS, 1966

Hence, it was necessary to separate most samples into two parts, 

one coarser than 0.062 mm and one finer than 0.062 mm. The 

separations were made by sieve or by a tube containing a settling 

medium of water. The coarse fractions were classified by sieve 

separation or by the visual accumulation tube (U.S. Inter-Agency, 

1957). The fine fractions were classified by the pipet method 

(Kilmer and Alexander, 1949) or the bottom withdrawal tube method 

(U.S. Inter-Agency, 1943).

EXPRESSION OF RESULTS

The quantities of solute concentrations analyzed in the laboratory are measured by weight-volume units (milligrams per liter) 

and for reporting, are converted to weight-weight units (parts per 

million). For most waters, this conversion is made by assuming 

that the liter of water sample weighs 1 kilogram; and thus milligrams per liter are equivalent to parts per million (ppm).

Equivalents per million are not reported, but they can be 

calculated easily from the parts per million data. An equivalent 

per million (epm) is a unit chemical combining weight of a constituent in a million unit weights of water. Chemical equivalence in 

equivalents per million can be obtained by (a) dividing the concentration in parts per million by the combining weight of 

that ion, or (b) multiplying the concentration (in ppm) by the 

reciprocals of the combining weights. The table on page 9 lists 

the reciprocals of the combining weights of cations and anions 

generally reported in water analyses. The conversion factors 

are computed from atomic weights based on carbon-12 (International Union of Pure and Applied Chemistry, 1961).

Results given in parts per million can be converted to grains 

per United States gallon by dividing by 17.12.

The hardness of water is conventionally expressed in all water 

analyses in terms of an equivalent quantity of calcium carbonate. 

Such a procedure is required because hardness is caused by 

several different cations, present in variable proportions. It 

should be remembered that hardness is an expression in conventional terms of a property of water. The actual presence of calcium carbonate in the concentration given is not to be assumed. 

The hardness caused by calcium and magnesium (and other 

cations if significant) equivalent to the carbonate and bicarbonate 

is called carbonate hardness; the hardness in excess of this quan-
EXPRESSION OF RESULTS 9

Conversion factors: Parts per million to equivalents per million

Multi- Multilon ply by Ion ply by

Aluminum (Ah3 )...... 0.11119 Iodide (I-i) ............. 0.00788

Ammonia as NH^1 .... .05544 Iron (Fe +3 ).............. .05372

Barium (Ba+2 ).......... .01456 Lead (Pb*2 )............. .00965

Bicarbonate (HCO§i ). .01639 Lithium (Li +1 )......... .14411

Bromide (Br"1 ) ....... .01251 Magnesium (Mg+2)... .08226

Calcium (Ca*2 )......... .04990 Manganese (Mn+2 ).... .03640

Carbonate (COg2 )...... .03333 Nickel (Ni+2 )........... .03406

Chloride (Cl"1 )......... .02821 Nitrate (NOg1 )......... .01613

Chromium (Cr+6 )...... .11539 Nitrite (NO;1 )........ .02174

Cobalt (Co+2 ) ........... .03394 Phosphate (PO;3 ).... .03159

Copper (Cu+2 ).......... .03148 Potassium (K*1 )....... .02557

Cyanide (CN'1 )......... .03844 Sodium (Na+i).......... .04350

Fluoride (F-i).......... .05264 Strontium (Sr +2 )....... .02283

Hydrogen (H+1 )......... .99209 Sulfate (SO^ )......... .02082

Hydroxide (OH-i)...... .05880 Zinc (Zn+2 )............. .03060

tity is called noncarbonate hardness. Hardness or alkalinity values expressed in parts per million as calcium carbonate may be 

converted to equivalents per million by dividing by 50.

The value usually reported as dissolved solids is the residue 

on evaporation after drying at 180°C for 1 hour. For some waters, 

particularly those containing moderately large quantities of soluble 

salts, the value reported is calculated from the quantities of the 

various determined constituents using the carbonate equivalent of 

the reported bicarbonate. The calculated sum of the constituents 

may be given instead of or in addition to the residue. In the 

analyses of most waters used for irrigation, the quantity of dissolved solids is given in tons per acre-foot as well as in parts per 

million.

Specific conductance is given for most analyses and was determined by means of a conductance bridge and using a standard 

potassium chloride solution as reference. Specific conductance 

values are expressed in micromhos per centimeter at 25°C. Specific conductance in micromhos is 1 million times the reciprocal 

of specific resistance at 25°C. Specific resistance is the resistance in ohms of a column of water 1 centimeter long and 1 square 

centimeter in cross section.

The discharge of the streams is reported in cubic feet per 

second (see Streamflow, p. 27) and the temperature in degrees
10 QUALITY OF SURFACE WATERS, 1966

Fahrenheit. Color is expressed in units of the platinum-cobalt 

scale proposed by Hazen (1892). A unit of color is produced by 

one milligram per liter of platinum in the form of the chloroplatinate ion. Hydrogen-ion concentration is expressed in terms 

of pH units. By definition the pH value of a solution is the 

negative logarithm of the concentration of gram ions of hydrogen.

An average of analyses for the water year is given for most 

daily sampling stations. Most of these averages are arithmetical, 

time-weighted, or discharge-weighted; when analyses during a 

year are all on 10-day composites of daily samples with no missing days, the arithmetical and time-weighted averages are equivalent. A time-weighted average represents the composition of 

water that would be contained in a vessel or reservoir that had 

received equal quantities of water from the river each day for the 

water year. A discharge-weighted average approximates the composition of water that would be found in a reservoir containing all 

of the water passing a given station during the year. A dischargeweighted average is computed by multiplying the discharge for the 

sampling period by the concentrations of individual constituents 

for the corresponding period and dividing the sum of the products 

by the sum of the discharges. For most streams, dischargeweighted averages are lower than arithmetical averages because 

at times of high discharge the rivers generally have low concentrations of dissolved solids.

A program for computing these averages by electronic digital 

computer was instituted in the 1962 water year. This program 

extended computations to include averages for pH values expressed 

in terms of hydrogen ion and averages for the concentration of 

individual constituents expressed in tons per day. Concentrations 

in tons per day are computed the same as daily sediment loads.

The concentration of sediment in parts per million is computed 

as 1,000,000 times the ratio of the weight of sediment to the 

weight of water-sediment mixture. Daily sediment loads are 

expressed in tons per day and except for subdivided days, are 

usually obtained by multiplying daily mean sediment concentrations 

in parts per million by the daily mean discharge in cubic feet per 

second, and the conversion factor, normally 0.0027.

Particle size analyses are expressed in percentages of 

material finer than classified sizes (in millimeters). The size 

classification used in this report agrees closely with recommendations made by the American Geophysical Union Subcommittee 

on sediment terminology (Lane and others, 1947). The particle
COMPOSITION OF SURFACE WATERS 11

size distributions given in this report are not necessarily representative of the particle sizes of sediment in transport in the 

natural stream. Most of the organic matter is removed and the 

sample is subjected to mechanical and chemical dispersion before 

analysis of the silt and clay.

COMPOSITION OF SURFACE WATERS

All natural waters contain dissolved mineral matter. The 

quantity of dissolved mineral matter in a natural water depends 

primarily on the type of rocks or soils with which the water has 

been in contact and the length of time of contact. Ground water 

is generally more highly mineralized than surface runoff because 

it remains in contact with the rocks and soils for much longer 

periods. Some streams are fed by both surface runoff and 

ground water from springs or seeps. Such streams reflect the 

chemical character of their concentrated underground sources 

during dry periods and are more dilute during periods of heavy 

rainfall. The dissolved-solids content in a river is frequently 

increased by drainage from mines or oil fields, by the addition 

of industrial or municipal wastes, or--in irrigated regions--by 

drainage from irrigated lands.

The mineral constituents and physical properties of natural 

waters reported in the tables of analyses include those that have 

a practical bearing on water use. The results of analyses generally 

include silica, iron, calcium, magnesium, sodium, potassium (or 

sodium and potassium together calculated as sodium), lithium, 

carbonate, bicarbonate, sulfate, chloride, fluoride, nitrate, boron, 

pH, dissolved solids, and specific conductance. Aluminum, manganese, color, acidity, dissolved oxygen, and other dissolved constituents and physical properties are reported for certain streams. 

Phenolic material and minor elements including strontium, chromium, nickel, copper, lead, zinc, cobalt, and other trace elements 

are determined occasionally for a few streams in connection with 

specific problems and the results are reported. The source and 

significance of the different constituents and properties of natural 

waters are discussed in the following paragraphs. The constituents 

are arranged in the order that they appear in the tables.
12 QUALITY OF SURFACE WATERS, 1966

MINERAL CONSTITUENTS IN SOLUTION 

Silica (SiO )

Silica is dissolved from practically all rocks. Some natural 

surface waters contain less than 5 parts per million of silica and 

few contain more than 50 parts, but the more common range is 

from 10 to 30 parts per million. Silica affects the usefulness of 

a water because it contributes to the formation of boiler scale; it 

usually is removed from feed water for high-pressure boilers. 

Silica also forms troublesome deposits on the blades of steam turbines.

Aluminum (Al)

Aluminum is usually present only in negligible quantities in 

natural waters except in areas where the waters have been in contact with the more soluble rocks of high aluminum content such as 

bauxite and certain shales. Acid waters often contain large amounts 

of aluminum. It may be troublesome in feed waters where it tends 

to be deposited as a scale on boiler tubes.

Iron (Fe)

Iron is dissolved from many rocks and soils. On exposure to 

the air, normal basic waters that contain more than 1 part per 

million of iron soon become turbid with the insoluble reddish ferric 

oxide produced by oxidation. Surface waters, therefore, seldom 

contain as much as 1 part per million of dissolved iron, although 

some acid waters carry large quantities of iron in solution. Iron 

causes reddish-brown stains on porcelain or enameled ware and 

fixtures and on fabrics washed in the water.

Manganese (Mn)

Manganese is dissolved in appreciable quantities from rocks 

in some sections of the country. It resembles iron in its chemical 

behavior and in its occurrence in natural waters. However, manganese in rocks is less abundant than iron. As a result the concentration of manganese is much less than that of iron and is not 

regularly determined in many areas. It is especially objectionable 

in water used in laundry work and in textile processing. Concentrations as low as 0.2 part per million may cause a dark-brown or
COMPOSITION OF SURFACE WATERS 13

black stain on fabrics and porcelain fixtures. Appreciable quantities of manganese are often found in waters containing objectionable quantities of iron.

Calcium (Ca)

Calcium is dissolved from almost all rocks and soils, but the 

highest concentrations are usually found in waters that have been 

in contact with limestone, dolomite, and gypsum. Calcium and 

magnesium make water hard and are largely responsible for the 

formation of boiler scale. Most waters associated with granite or 

silicious sands contain less than 10 parts per million of calcium; 

waters in areas where rocks are composed of dolomite and limestone contain from 30 to 100 parts per million; and waters that 

have come in contact with deposits of gypsum may contain several 

hundred parts per million.

Magnesium (Mg)

Magnesium is dissolved from many rocks, particularly from 

dolomitic rocks. Its effect in water is similar to that of calcium. 

The magnesium in soft waters may amount to only 1 or 2 parts per 

million, but water in areas that contain large quantities of dolomite 

or other magnesium-bearing rocks may contain from 20 to 100 

parts per million or more of magnesium.

Strontium (Sr)

Strontium is a typical alkaline-earth element and is similar 

chemically to calcium. Strontium may be present in natural water 

in amounts up to a few parts per million much more frequently 

than the available data indicate. In most surface water the amount 

of strontium is small in proportion to calcium. However, in sea 

water the ratio of strontium to calcium is 1:30.

Sodium and potassium (Na and K)

Sodium and potassium are dissolved from practically all rocks. 

Sodium is the predominant cation in some of the more highly mineralized waters found in the western United States. Natural waters 

that contain only 3 or 4 parts per million of the two together are 

likely to carry almost as much potassium as sodium. As the total 

quantity of these constituents increases, the proportion of sodium 

becomes much greater. Moderate quantities of sodium and potassium have little effect on the usefulness of the water for most 

purposes, but waters that carry more than 50 to 100 parts per
16 QUALITY OF SURFACE WATERS, 1966

44 parts per million (as NO,,) should be regarded as unsafe for 

infant feeding. U.S. Public Health Service (1962) sets 45 ppm 

as the upper limit.

Phosphate (PO4)

Phosphorus is an essential element in the growth of plants and 

animals. Some sources that contribute nitrate, such as organic 

wastes are also important sources of phosphate. The addition of 

phosphates in water treatment constitutes a possible source, 

although the dosage is usually small. In some areas, phosphate 

fertilizers may yield some phosphate to water. A more important 

source is the increasing use of phosphates in detergents. Domestic 

and industrial sewage effluents of ten contain considerable amounts 

of phosphate.

Boron (B)

Boron in small quantities has been found essential for plant 

growth, but irrigation water containing more than 1 part per million 

boron is detrimental to citrus and other boron-sensitive crops. 

Boron is reported in Survey analyses of surface waters in arid and 

serniarid regions of the Southwest and West where irrigation is 

practiced or contemplated, but few of the surface waters analyzed 

have harmful concentrations of boron.

Dissolved solids

The reported quantity of dissolved solids the residue on evaporation--consists mainly of the dissolved mineral constituents in 

the water. It may also contain some organic matter and water of 

crystallization. Waters with less than 500 parts per million of 

dissolved solids are usually satisfactory for domestic and some 

industrial uses. Water containing several thousand parts per million of dissolved solids are sometimes successfully used for 

irrigation where practices permit the removal of soluble salts 

through the application of large volumes of water on well-drained 

lands, but generally water containing more than about 2,000 ppm 

is considered to be unsuitable for long-term irrigation under 

average conditions.

Chromium (Cr)

Few if any waters contain chromium from natural sources. 

Natural waters can probably contain only traces of chromium as 

a cation unless the pH is very low. When chromium is present in
COMPOSITION OF SURFACE WATERS 17

water, it is usually the result of pollution by industrial wastes. 

Fairly high concentrations of chromate anions are possible in 

waters having normal pH levels. Concentrations of more than 

0.05 ppm of chromium in the hexavalent form constitute grounds 

for rejection of a water for domestic use on the basis of the 

standards of the U.S. Public Health Service (1962).

Nickel and Cobalt (Ni, Co)

Nickel and cobalt are very similar in chemical behavior and 

also closely related to iron. Both are present in igneous rocks in 

small amounts and are more prevalent in silicic rocks. Any nickel 

in water is likely to be in small amounts and could be in a colloidal 

state. Cobalt may be taken into solution more readily than nickel. 

It may be taken into solution in small amounts through bacteriological activity similar to that causing solution of manganese. 

However, few data on the occurrence of either nickel or cobalt in 

natural water are available.

Copper (Cu)

Copper is a fairly common trace constituent of natural water. 

Small amounts may be introduced into water by solution of copper 

and brass water pipes and other copper-bearing equipment in 

contact with the water, or from copper salts added to control algae 

in open reservoirs. Copper salts such as the sulfate and chloride 

are highly soluble in waters with a low pH but in water of normal 

alkalinity these saltshydrolyze and the copper may be precipitated. 

In the normal pH range of natural water containing carbon dioxide, 

the copper might be precipitated as carbonate. The oxidized 

portions of sulfide-copper ore bodies contain other copper compounds. The presence of copper in mine water is common.

Copper imparts a disagreeable metallic taste to water. As 

little as 1.5 ppm can usually be detected, and 5 ppm can render 

the water unpalatable. Copper is not considered to be a cumulative 

systemic poison like lead and mercury; most copper ingested 

is excreted by the body and very little is retained. The pathological effects of copper are controversial, but it is generally believed very unlikely that humans could unknowingly ingest toxic 

quantities from palatable drinking water. The U.S. Public Health 

Service (1962) recommends that copper should not exceed 1.0 ppm 

in drinking and culinary water.
18 QUALITY OF SURFACE WATERS, 1966

Lead (Pb)

Lead is only a minor element in most natural waters, but 

industrial or mine and smelter effluents may contain relatively 

large amounts of lead. Many of the commonly used lead salts are 

water soluble.

Traces of lead in water usually are the result of solution of 

lead pipe through which the water has passed. Amounts of lead of 

the order of 0.05 ppm are significant, as this concentration is the 

upper limit for drinking water in the standards adopted by the 

U.S. Public Health Service (1962). Higher concentrations may be 

added to water through industrial and mine-waste disposal. Lead 

in the form of sulfate is reported to be soluble in water to the 

extent of 31 ppm (Seidell, 1940) at 25°C. In natural water this 

concentration would not be approached, however, since a pH of 

less than 4.5 would probably be required to prevent formation 

of lead hydroxide and carbonate. It is reported (Pleissner, 1907) 

that at 18°C water free of carbon dioxide will dissolve the equivalent of 1.4 ppm of lead and the solubility is increased nearly 

four fold by the presence of 2.8 ppm of carbon dioxide in the solution. Presence of other ions may increase the solubility of lead.

Zinc (Zn)

Zinc is abundant in rocks and ores but is only a minor constituent in natural water because the free metal and its oxides are 

only sparingly soluble. In most alkaline surface waters it is 

present only in trace quantities, but more may be present in acid 

water. Chlorides and sulfates of zinc are highly soluble. Zinc is 

used in many commercial products, and industrial wastes may 

contain large amounts.

Zinc in water does not cause serious effects on health, but 

produces undesirable esthetic effects. The U.S. Public Health 

Service (1962, p. 55) recommends that the zinc content not exceed 

5 ppm in drinking and culinary water.

Barium (Ba)

Barium may replace potassium in some of the igneous rock 

minerals, especially feldspar and barium sulfate (barite) is a 

common barium mineral of secondary origin. Only traces of 

barium are present in surface water and sea water. Because 

natural water contains sulfate, barium will dissolve only in trace 

amounts. Barium sometimes occurs in brines from oil-well 

wastes.
COMPOSITION OF SURFACE WATERS 19

The U.S. Public Health Service (1962) states that water containing concentrations of barium in excess of Ippm is not suitable 

for drinking and culinary use because of the serious toxic effects 

of barium on heart, blood vessels, and nerves.

Bromide (Br)

Bromine is a very minor element in the earth's crust and is 

normally present in surface waters in only minute quantities. 

Measurable amounts may be found in some streams that receive 

industrial wastes, and some natural brines may contain rather 

high concentrations. It resembles chloride in that it tends to be 

concentrated in sea water.

Iodide (I)

Iodide is considerably less abundant both in rocks and water 

than bromine. Measurable amounts may be found in some streams 

that receive industrial wastes, and some natural brines may contain rather high concentrations. It occurs in sea water to the 

extent of less than 1 ppm. Rankama and Sahama (1950) report 

iodide present in rainwater to the extent of 0.001 to 0.003 ppm 

and in river water in about the same amount. Few waters will 

contain over 2.0 ppm.

PROPERTIES AND CHARACTERISTICS OF WATER 

Hardness

Hardness is the characteristic of water that receives the most 

attention in industrial and domestic use. It is commonly recognized by the increased quantity of soap required to produce lather. 

The use of hard water is also objectionable because it contributes 

to the formation of scale in boilers, water heaters, radiators, and 

pipes, with the resultant decrease in rate of heat transfer, possibility of boiler failure, and loss of flow.

Hardness is caused almost entirely by compounds of calcium 

and magnesium. Other constituents--such as iron, manganese, 

aluminum, barium, strontium, and free acid--also cause hardness, 

although they usually are not present in quantities large enough 

to have any appreciable effect.

Generally, bicarbonate and carbonate determine the proportions of "carbonate" hardness of water. Carbonate hardness is
20 QUALITY OF SURFACE WATERS, 1966

the amount of hardness chemically equivalent to the amount of 

bicarbonate and carbonate in solution. Carbonate hardness is 

approximately equal to the amount of hardness that is removed 

from water by boiling.

Noncarbonate hardness is the difference between the hardness 

calculated from the total amount of calcium and magnesium in 

solution and the carbonate hardness. If the carbonate hardness 

(expressed as calcium carbonate) equals the amount of calcium and 

magnesium hardness (also expressed as calcium carbonate) there 

is no noncarbonate hardness. Noncarbonate hardness is about 

equal to the amount of hardness remaining after water is boiled. 

The scale formed at high temperatures by the evaporation of water 

containing noncarbonate hardness commonly is tough, heat resistant, and difficult to remove.

Although many people talk about soft water and hard water, 

there has been no firm line of demarcation. Water that seems 

hard to an easterner may seem soft to a westerner. In this 

report hardness of water is classified as follows:

Hardness range

(calcium carbonate Hardness description 

in ppm)

0-60 Soft

61-120 Moderately hard

121-180 Hard

more than 180 Very hard

Durfor and Becker, 1964, p. 23-27.

Acidity (H+1 )

The use of the terms acidity and alkalinity is widespread in 

the literature of water analysis and is a cause of confusion to those 

who are more accustomed to seeing a pH of 7.0 used as a neutral 

point. Acidity of a natural water represents the content of free 

carbon dioxide and other uncombined gases, organic acids and 

salts of strong acids and weak bases that hydrolyze to give hydrogen ions. Sulfates of iron and aluminum in mine and industrial 

wastes are common sources of acidity. The presence of acidity 

is reported in those waters which have a pH below 4.5.
COMPOSITION OF SURFACE WATERS 21

Sodium adsorption ratio (SAR)

The term "sodium adsorption ratio (SAR)" was introduced 

by the U.S. Salinity Laboratory Staff (1954). It is a ratio expressing the relative activity of sodium ions in exchange reaction with 

soil and is an index of the sodium or alkali hazard to the soil. 

Sodium adsorption ratio is expressed by the equation:

SAR =

where the concentrations of the ions are expressed in milliequivalents per liter (or equivalents per million for most irrigation 

waters).

Waters are divided into four classes with respect to sodium 

or alkali hazard: low, medium, high, and very high, depending 

upon the SAR and the specific conductance. At a conductance of 

100 micromhos per centimeter the dividing points are at SAR 

values of 10, 18, and 26, but at 5,000 micromhos the corresponding 

dividing points are SAR values of approximately 2.5, 6.5, and 11. 

Waters range in respect to sodium hazard from those which can 

be used for irrigation on almost all soils to those which are 

generally unsatisfactory for irrigation.

Specific conductance (micromhos per centimeter at 25°C)

Specific conductance is a convenient, rapid determination used 

to estimate the amount of dissolved solids in water. It is a measure of the ability of water to transmit a small electrical current 

(see p. 9). The more dissolved solids in water that can transmit 

electricity the greater the specific conductance of the water. Commonly, the amount of dissolved solids (in parts per million) is 

about 65 percent of the specific conductance (in micromhos). This 

relation is not constant from stream to stream or from well to 

well and it may even vary in the same source with changes in the 

composition of the water (Durfor and Becker, 1964 p. 27-29).

Specific conductance of most waters in the eastern United 

States is less than 1,000 micromhos, but in the arid western parts 

of the country, a specific conductance of more than 1,000 micromhos is common.

Hydrogen-ion concentration (pH)

Hydrogen-ion concentration is expressed in terms of pH units 

(see p. 10). The values of pH often are used as a measure of the
22 QUALITY OF SURFACE WATERS, 1966

solvent power of water of as an indicator of the chemical behavior 

certain solutions may have toward rock minerals.

The degree of acidity or alkalinity of water, as indicated by 

the hydrogen-ion concentration, expressed as pH, is related to the 

corrosive properties of water and is useful in determining the 

proper treatment for coagulation that may be necessary at watertreatment plants. A pH of 7.0 indicates that the water is neither 

acid nor alkaline. pH readings progressively lower than 7.0 

denote increasing acidity and those progressively higher than 7.0 

denote increasing alkalinity. The pH of most natural surface waters 

ranges between 6 and 8. Some alkaline surface waters have pH 

values greater than 8.0 and waters containing free mineral 

acid or organic matter usually have pH values less than 4.5.

The investigator who utilizes pH data in his interpretations of 

water analyses should be careful to place pH values in their proper 

perspective.

Color

In water analysis the term "color" refers to the appearance 

of water that is free from suspended solids. Many turbid waters 

that appear yellow, red, or brown when viewed in the stream show 

very little color after the suspended matter has been removed. 

The yellow-to-brown color of some waters is usually caused by 

organic matter extracted from leaves, roots, and other organic 

substances in the ground. In some areas objectionable color in 

water results from industrial wastes and sewage. Clear deep 

water may appear blue as the result of a scattering of sunlight by 

the water molecules. Water for domestic use and some industrial 

uses should be free from any perceptible color. A color less than 

15 units generally passes unnoticed (U.S. Public Health Service, 

1962). Some swamp waters have natural color in excess of 300 

units.

The extent to which a water is colored by material in solution 

is commonly reported as a part of a water analysis because a significant color in water may indicate the presence of organic material that may have some bearing on the dissolved solids content. 

Color in water is expressed in terms of units between 0 and 500 

or more based on the above standard (see p. 10).
COMPOSITION OF SURFACE WATERS 23

Oxygen consumed

Oxygen consumed is a measure of the amount of oxygen required to oxidize unstable materials in water and may be correlated with natural-water color or with some carbonaceous organic 

pollution from sewage or industrial wastes.

Tolerances for oxygen consumed in feed water for low- and 

high-pressure boilers are 15 and 3 ppm, respectively (Northeast 

Water Works Association, 1940). Wash water containing more 

than 8 ppm has been reported to import a bad odor to textiles; 

concentrations for water used in beverages and brewing range 

from 0.5 to 5.0 ppm (California State Water Pollution Control 

Board, 1952, 1954).

Dissolved oxygen (DO)

Adequate dissolved oxygen is necessary for the life of fish 

and other aquatic organisms and is an indicator for corrosivity 

of water, photosynthetic activity, and septicity. It is one of the 

most important indicators of the condition of a water supply 

for biological, chemical and sanitary investigations (Rose, 1965).

Biochemical oxygen demand (BOD)

Biochemical oxygen demand is a measure of the oxygen required to oxidize the carbonaceous organic material usable as a 

source of food by aerobic organisms.

Chemical oxygen demand (COD)

Chemical oxygen demand indicates the quantity of oxidizable 

compounds present in a water and will vary with water compositions, concentration of reagent, temperature, period of 

contact, and other factors.

Organics

Phenols. Phenolic material in water resources is invariably 

the result of pollution. Phenols are widely used as disinfectants 

and in the synthesis of many organic compounds. Waste products 

from oil refineries, coke areas, and chemical plants may contain 

high concentrations. Fortunately, phenols decompose in the presence of oxygen and organic material, and their persistence downstream from point of entry is relatively short lived. The rate of 

decomposition is dependent on the environment.
24 QUALITY OF SURFACE WATERS, 1966

Very low concentrations impart such a disagreeable taste to 

water that it is highly improbable that harmful amounts could be 

consumed unknowingly. Reported thresholds of detection of taste 

and odor range from 0.001 to 0.01 ppm.

Coliform organisms are a group of bacteria used as an indicator 

of the sanitary quality of the water. The number of coliform colonies per 100 milliliters of water is determined by the immediate or delayed incubation membrane filter method. Most probable number (MPN) is also a method of determining a direct 

count of coliform colonies per 100 milliliters of water.

Detergents (MBAS).--Anionic surfactants (methylene blue 

active substance, MB AS) in detergents resist chemical oxidation 

and biological breakdown. Their persistence in water over long 

periods of time contributes to pollution of both ground water and 

surface water. Some of the effects produced from detergent 

pollution are unpleasant taste, odor, and foaming (Wayman, 

and others, 1962). Although the physiological implications of 

MB AS to human beings is unknown, prolonged ingestion of this 

material by rats is believed to be nontoxic (Paynter, 1960). 

The U.S. Public Health Service (1962) recommends that MBAS 

should not exceed 0.5 ppm in drinking and culinary waters.

Temperature

Temperature is an important factor in property determining 

the quality of water. This is very evident for such a direct use 

as an industrial coolant. Temperature is also important, but perhaps not so evident, for its indirect influence upon aquatic biota, 

concentrations of dissolved gases, and distribution of chemical 

solutes in lakes and reservoirs as a consequence of thermal 

stratification and variation.

Surface water temperatures tend to change seasonally and 

daily with air temperatures, except for the outflow of large springs. 

Superimposed upon the annual temperature cycle is a daily fluctuation of temperature which is greater in warm seasons than in 

cold and greater in sunny periods than with a cloud cover. Natural warming is due mainly to absorption of a solar radiation by 

the water and secondarily to transfer of heat from the air. 

Condensation of water vapor at the water surface is reported to 

furnish measurable quantities of heat. Heat loss takes place largely 

through radiation, with further losses through evaporation and 

conduction to the air and to the stream-bed. Thus the temperature 

of a small stream generally reaches a maximum in mid- to late
COMPOSITION OF SURFACE WATERS 25

afternoon due to solar heating and reaches a minumum from early 

to mid-morning after nocturnal radiation.

Temperature variations which commonly occur during summer 

in lakes and reservoirs of temperate regions result in a separation 

of the water volume into a circulating upper portion and a noncirculating lower portion. Separating the two is a stratum of 

water of variable vertical thickness in which the temperature 

decreases rapidly with increasing depth. This physical division 

of the water mass into a circulating and a stagnant portion is the 

result of density differences in the water column associated with 

the temperature distribution. Knowledge of the stratification in a 

body of water may result in increased utility by locating strata of 

more suitable characteristics. For example, the elevation of an 

intake pipe may be changed to obtain water of lower temperature, 

higher pH, less dissolved iron, or other desirable properties.

Temperature is a major factor in determining the effect of 

pollution on aquatic organisms. The resistance of fish to certain 

toxin substances has been shown to vary widely with temperature. 

The quantity of dissolved oxygen which the water can contain is 

also temperature dependent. Oxygen is more soluble in cold water 

than in warm water, hence the reduction of oxygen concentrations 

by pollution is especially serious during periods of high temperature when oxygen levels are already low. Increased temperatures 

also accelerate biological activity including that of the oxygenutilizing bacteria which decompose organic wastes. These pollutional effects may be especially serious when low flow conditions coincide with high temperatures. Summary temperature 

data of water are essential for planning multiple uses of water.

Turbidity

Turbidity is the optical property of a suspension with reference to the extent to which the penetration of light is inhibited by 

the presence of insoluble material. Turbidity is a function on both 

the concentration and particle size of the suspended material. 

Although it is reported in terms of parts per million of silica, it 

is only partly synonymous with the weight of sediment per unit 

volume of water.

Turbid water is abrasive in pipes, pumps, and turbine blades. 

In process water, turbidities much more than 1 ppm are not tolerated by several industries, but others permit up to 50 ppm or 

higher (Rainwater, Thatcher, 1960, p. 289). Although turbidity 

does not directly measure the safety of drinking water, it is re-
26 QUALITY OF SURFACE WATERS, 1966

lated to the consumer's acceptance of the water. A level of 5 units 

of turbidity becomes objectionable to a considerable number of 

people (U.S. Public Health, 1962).

Sediment

Fluvial sediment is generally regarded as that sediment which 

is transported by, suspended in, or deposited by water. Suspended 

sediment is that part which remains in suspension in water 

owing to the upward components of turbulent currents or by 

colloidal suspension. Much fluvial sediment results from the 

natural process of erosion, which in turn is part of the geologic 

cycle of rock transformation. This natural process may be 

accelerated by agricultural practices. Sediment is also contributed by a number of industrial and construction activities. In 

certain sections, waste materials from mining, logging, oil-field, 

and other industrial operations introduce large quantities of 

suspended as well as dissolved material.

The quantity of sediment, transported or available for transportation, is affected by climatic conditions, form or nature of 

precipitation, character of the solid mantle, plant cover, topography, and land use. The mode and rate of sediment erosion, 

transport, and deposition is determined largely by the size distribution of the particles or more precisely by the fall velocities 

of the particles in water. Sediment particles in the sandsize 

(larger than 0.062 mm) range do not appear to be affected by 

flocculation or dispersion resulting from the mineral constituents 

in solution. In contrast, the sedimentation diameter of clay and 

silt particles in suspension may vary considerably from point to 

point in a stream or reservoir, depending on the mineral matter in 

solution and in suspension and the degree of turbulence present. 

The size of sediment particles in transport at any point depends on 

the type of erodible and soluble material in the drainage area, the 

degree of flocculation present, time in transport, and characteristics of the transporting flow. The flow characteristics include 

velocity of water, turbulence, and the depth, width, and roughness 

of the channel. As a result of these variable characteristics, the 

size of particles transported, as well as the total sediment load, 

is in constant adjustment with the characteristics and physical 

features of the stream and drainage area.
PUBLICATIONS 27

STREAMFLOW

Most of the records of stream discharge, used in conjunction 

with the chemical analyses and in the computation of sediment 

loads in this volume, are published in the Geological Survey 

water-supply paper series, "Surface Water Supply of the United 

States, 1966-70." The discharge reported for a composite sample 

is usually the average of daily mean discharges for the composite 

period. The discharges reported in the tables of single analyses 

are either daily mean discharges or discharges obtained at the 

time samples were collected and computed from a stage-discharge 

relation or from a discharge measurement.

PUBLICATIONS

Reports giving records of chemical quality and temperatures 

of surface waters and suspended-sediment loads of streams in the 

area covered by this volume for the water years 1941-65, are 

listed below:

Numbers of water-supply papers containing records for 

Parts 9-11, 1941-65

Year WSP Year WSP Year WSP Year WSP

1941

1942

1943

1944

1945

1946

1947

942

950

970

1022

1030

1050

1102

1948

1949

1950

1951

1952

1953

1954

1133

1163

1189

1200

1253

1293

1353

1955

1956

1957

1958

1959

1960

1961

1403

1453

1523

1574

1645

1745

1885

1962

1963

1964

1965

____

1945

1951

1958

1965

____

Geological Survey reports containing chemical quality, temperature, and sediment data obtained before 1941 are listed 

below. Publications dealing largely with the quality of groundwater supplies and only incidentally covering the chemical 

composition of surface waters are not included. Publications 

that are out of print are preceded by an asterisk.
28 QUALITY OF SURFACE WATERS, 1966

PROFESSIONAL PAPER

*135. Composition of river and lake waters of the United States, 

1924.

BULLETINS

*479. The geochemical interpretation of water analyses, 1911. 

770. The data of geochemistry, 1924.

WATER-SUPPLY PAPERS

*108. Quality of water in the Susquehanna River drainage basin, 

with an introductory chapter on physiographic features. 

1904.

*161. Quality of water in the upper Ohio River basin and at 

Erie, Pa., 1906.

*193. The quality of surface waters in Minnesota, 1907.

*236. The quality of surface waters in the United States, 

Part 1, Analyses of waters east of the one hundredth 

meridian, 1909.

*237. The quality of the surface waters of California, 1910.

*239. The quality of surface waters of Illinois, 1910.

*273. Quality of the water supplies of Kansas, with a preliminary report on stream pollution by mine waters in 

southeastern Kansas, 1911.

*274. Some stream waters of the western United States, with 

chapters on sediment carried by the Rio Grande and 

the industrial application of water analyses, 1911.

*339. Quality of the surface waters of Washington, 1914.

*363. Quality of the surface waters of Oregon, 1914.

*418. Mineral springs of Alaska, with a chapter on the chemical 

character of some surface waters of Alaska, 1917.

*596-B. Quality of water of Colorado River in 1925-26, 1928.

*596-D. Quality of water of Pecos River in Texas, 1928.

*596-E. Quality of the surface waters of New Jersey, 1928.

*636-A. Quality of water of the Colorado River in 1926-28, 1930.

*636-B. Suspended matter in the Colorado River in 1925-28,1930.

*638-D. Quality of water of the Colorado River in 1928-30, 1932.

*839. Quality of water of the Rio Grande basin above Fort 

Quitman, Tex., 1938.

*889-E. Chemical character of surface water of Georgia, 1944.

*998. Suspended sediment in the Colorado River, 1925-41, 

1947.
COOPERATION 29

1048. Discharge and sediment loads in the Boise River drainage

basin, Idaho, 1939-40, 1948. 

1110-C. Quality of water of Conchas Reservoir, New Mexico,

1939-49, 1952.

Many of the reports listed are available for consultation in the 

larger public and institutional libraries. Copies of Geological 

Survey publications still in print may be purchased at a nominal 

cost from the Superintendent of Documents, Government Printing 

Office, Washington, D.C. 20402, who will, upon request, furnish 

lists giving prices.

COOPERATION

Many Municipal, State and Federal agencies assisted in collecting records for these quality-of-water investigations. Many 

of the investigations were supported by funds appropriated directly 

to the U.S. Geological Survey. Chemical-quality and sediment-load 

investigations in the Colorado River basin in Arizona, Colorado, 

New Mexico, and Utah have been a continuing Federal project 

since 1925. The State, local and Federal agencies that cooperated 

in these quality-of-water investigations are as follows:

Arizona--Bureau of Reclamation, U.S. Department of the 

Interior. Soil Conservation Service, U.S. Department of 

Agriculture.

California California Department of Water Resources, 

W. E. Warne, director. California Water Quality Control 

Board, P. R. Bonderson, executive officer. Monterey County 

Flood Control and Water Conservation District, Loren 

Bunte, Jr., district engineer, San Mateo County, D. S. Wilson, 

county engineer and road commissioner. Santa Clara County 

Flood Control and Water Conservation District, D. K. Currlin, 

manager-counsel. Alameda County Water District, M. P. 

Whitfield, general manager. Metropolitan Water District 

of Southern California, Lee Streicher, water-purification 

engineer. Kings River Water Association. Bureau of 

Reclamation, U. S. Department of the Interior. Corps of 

Engineers, U. S. Army. Soil Conservation Service, U. S. 

Department of Agriculture.

Colorado--Bureau of Reclamation, U. S. Department of 

the Interior*
30 QUALITY OF SURFACE WATERS, 1966

Idaho Idaho Department of Reclamation, C. E. Tappa:i, 

succeeded by Keith Higginson, State reclamation engineer. 

Corps of Engineers, U.S. Army. Forest Service, U.S. 

Department of Agriculture. U.S. State Department. Bureau 

of Commercial Fisheries, U.S. Department of the Interior.

Nevada Bureau of Reclamation, U.S. Department of the 

Interior. Soil Conservation Service, U.S. Department of 

Agriculture.

New Mexico--New Mexico State Engineer, S. E. Reynolds. 

New Mexico Interstate Stream Commission, S. E. Reynolds, 

secretary. New Mexico Institute of Mining and Technology, 

S. A. Colgate, president. Bureau of Reclamation, U.S. 

Department of the Interior. Corps of Engineers, U.S. Army.

Oregon--Oregon Board of Higher Education.

Utah--Office of Utah State Engineer, H. C. Lambert. Utah 

Geological and Mineralogical Survey, W. P. Hewitt, director. 

Utah Water and Power Board, Utah Fish and Game Commission, 

Salt Lake County Water Conservancy District, Metropolitan 

Water District of Salt Lake City, Salt Lake County, Kennecott 

Copper Corporation, Utah Power and Light Company, Salt 

Lake City Chamber of Commerce, Central Utah Water 

Conservancy District. Bureau of Reclamation, U.S. Department 

of the Interior.

Wyoming--Wyoming Department of Agriculture, O. H. 

Engendorff, commissioner. Wyoming State Engineer, F. A. 

Bishop. Wyoming Natural Resources Board, E. J. Van Camp, 

director of water resources, succeeded by M. W. Goodson, 

chief of water development.

DIVISION OF WORK

The quality-of-water work was performed by the Water 

Resources Division of the Geological Survey, E. L. Hendricks, 

chief hydrologist, and under the direction of the district chiefs 

listed in the preface.
I LITERATURE CITED 31

Correspondence regarding the records in this report or 

any additional information should be directed to the district 

chief of the appropriate Geological Survey-Water Resources 

Division indicated in the following table.

State 

Arizona

California 

Colorado

Idaho

Nevada 

New Mexico

Oregon

Utah

Wyoming

District office 

Tucson 85717

Menlo Park 94025 

Denver 80225

Boise 83702

Carson City 89701 

Albuquerque 87106

Portland 97208 

Salt Lake City 84111 

Cheyenne 82001

Address

P. O. Box 2555 

East First St.

855 Oak Grove Ave.

Bldg. 25 Denver 

Federal Center

Room 365

Federal Bldg. 

550 West Fort St.

222 E. Washington St.

P. O. Box 4369 

Geology Bldg. 

University of New 

Mexico

P. O. Box 3202 

830 N.E. Holladay

8002 Federal Bldg. 

125 South State St.

P. O. Box 2087 

2nd Floor, Blue

Cross Bldg. 

215 East Eighth St.

LITERATURE CITED

American Society for Testing Materials, 1954, Manual on industrial water: Am. Soc. for Testing Mat., Philadelphia, Pa., 

p. 356.
32 QUALITY OF SURFACE WATERS, 1966

Durfor, C. N. and Decker, E., 1964, Public water supplies of the 

100 largest cities in the United States; 1962: U.S. Geol. 

Survey Water-Supply Paper 1812, p. 20.

California State Water Pollution Control Doard, 1952, Waterquality criteria: California State Water Pollution Control 

Doard, pub. 3., p. 291-292, 377-378.

_____1954, Water-quality criteria: California State Water Pollution Control Board, pub. 3, Addendum no. 1., p. 291-292.

Faucett, R. L. and Miller, H. C., 1946, Methemoglobinemia 

occurring in infants fed milk diluted with well waters of 

high nitrate content: Jour. Pediatrics, v. 29, p. 593.

Hazen, Alien, 1892, A new color standard for natural waters: 

Am. Chem. Jour., . 12, p. 427-428.

International Union of Pure and Applied Chemistry, 1961, Table 

of Atomic weights based on carbon-12: Chem. and Eng. 

News, v. 39, no. 42, Nov. 20, 1961, p. 43.

Kilmer, V. J. and Alexander, L. T., 1949, Methods of making 

mechanical analyses of soils: Soil Sci., v. 68, p. 15-24.

Lane, E. W., and others, 1947, Report of the Subcommittee on 

sediment terminology: Am. Geophys. Union Trans., v. 28, 

no. 6, p. 936-938.

Magistad, O. C., and Christiansen, J. E., 1944, Saline Soils, 

their nature and management: U. S. Dept., Agriculture 

Circ. 707, p. 8-9.

Maxcy, K. F., 1950, Report on the relation of nitrate concentrations in well waters to the occurrence of methemoglobinemia: Natl. Research Council, Dull. Sanitary Eng. and 

Environment, App. D., p. 271.

Northeastern Water Works Association, 1940, Progress report, 

Committee on quality Tolerances of Water for Industrial 

Uses: Northeast Water Works Assoc. Jour., v. 54.

Paynter, O. E., 1960, The chronic toxicity of dodecylbenzene 

sodium sulfonate: U.S. Public Health Conference on Physiological Aspects of Water Quality Proc., Washington, 

D.C., Sept. 8-9, 1960, p. 175-179.

Pleissner, M., 1907, Uber die L6slichkeit eimiger Dleiverbindungen in wasser: Arb. Kais. Gesundeitsamt. v. 26, p. 

384-443.

Rainwater, F. H., and Thatcher, L. L., 1960, Methods for collection and analysis of water samples: U.S. Geol. Survey 

Water-Supply Paper 1454, 301 p.

Rankama, K., and Sahama, T. G., 1950, Geochemistry: Chicago 

Univ. Press, Chicago, 111., p. 767.

Riffenburg, H. D., 1925, Chemical character of ground waters of 

the northern Great Plains: U.S. Geol. Survey Water-Supply 

Paper 560-D, p. 31-52.
LITERATURE CITED 33

Rose, Arthur and Elizabeth, 1965, The condensed chemical 

dictionary: Reinhold Pub. Corp., New York, 5th ed., p. 412.

Seidell, Atherton, 1940, Solubilities of inorganic and metal organic compounds, 3d ed., v. 1, D. van Nostrand, New 

York. p. 1409.

U.S. Inter-Agency Committee on Water Resources, Subcommittee 

on Sedimentation, A study of methods used in measurement 

and analysis of sediment loads in streams. Published by the 

St. Anthony Falls Hydraulic Laboratory, Minneapolis, Minn.

_____1943, A study of new methods of size analysis of suspended-sediment samplers, Rept. 7.

_______1952, The design of improved types of suspended-sediment

samplers: Rept. 6,

_____1957, The development and calibration of visual accumulation tube: Rept 11.

_____1957, Some fundamentals of particle size analysis: Rept. 12.

_____1959, Federal Inter-agency sedimentation instruments and 

reports: Rept. A A.

_____1963, Determinations of fluvial sediment discharge: 

Rept. 14.

_____1963, A summary of the work of the Inter-agency sedimentation project: Rept. S. 

U.S. Public Health Service, 1962, Drinking water standards:

U.S. Dept. Health, Education, and Welfare, Public Health

Service: Pub. no. 956. 

U.S. Salinity Laboratory Staff, 1954, Diagnosis and improvement

of saline and alkali soils: U.S. Dept. Agriculture, Agriculture Handb. 60, p. 1-160. 

Waring, F. H., 1949, Significance of nitrates in water supplies:

Am. Water Works Assoc. Jour., v. 41, no. 2., p. 147-150. 

Wayman, C. H., 1962, Limitations of the methylene blue method

for ABS determinations: U.S. Geol. Survey, Prof. Paper

450-B, art. 49, p. B117-B120. 

Wayman, C. H., Robertson, J. B., and Page,H. G., 1962, Foaming

characteristics of synthetic-detergent solutions: U.S. Geol.

Survey, Prof. Paper 450D, art. 178, p. D198.
WATER-QUALITY STATIONS IN DOWNSTREAM ORDER 

PART 9. COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM 

9-0345. COLORADO RIVER AT HOT SULPHUR SPRINGS, 

LOCATION. Lat 4(°04'27", long 106°06'24", at bridge at Hot Sulphur Springs, Grand County, 1 mile dow

Beaver Creek.

DRAINAGE AREA. 825 square miles upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1966.

Water tempfratures: April 1949 to September 1966. 

EXTREMES, 19 .5-66. Dissolved solids: Maximum, 116 ppm Feb. 1; minimum, 63 ppm Mar. 1-23.

Hardness: Maximum, 74 ppm July 1-31; minimum, 37 ppm Feb. 16-28.

Specific conductance: Maximum daily, 186 micromhos Aug. 4; minimum daily, 81 micromhos Mar. 1.

Water temperatures: Maximum, 75°F July 6, 11, 14, 21; minimum, freezing point on many days during 

EXTREMES, 1947-66. Dissolved solids (1947-50, 1952-66): Maximum, 132 ppm July 16, 1962; minimum, 38 

Hardness (1947-50, 1952-66): Maximum, 82 ppm May 17, 18, 1963; minimum, 20 ppm June 21-30, 1947.

Specific conductance: Maximum daily, 210 micromhos Apr. 13, 1958; minimum daily, 48 micromhos June 

Water temperatures (1949-66): Maximum, 75°F Aug. 8, 1957, July 6, 11, 14, 21, 1966; minimum, freez

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and reporte

more comprehensive definition of water quality at this station. Maximum observed during water year

203 micromhos Dec. 28.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 1-20, 1965...

Jan. 1-31, 1966...

Mar. 24-27........

May 1-31..........

Mean 

discharge 

(cfs)

128 

119 

116 

111 

103

80.6 

73 

73.0 

75.3 

78

80.4 

95.3 

119 

272 

285

176 

247

Silica 

(S102)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

4.6 

18 

9.7 

11 

11

13 

9.9 

6.3 

1.8 

4.1

3.3 

6.1 

9.8 

6.3 

8.3

11 

10

Potassium 

(K)

Bicarbonate 

(HCO,)

68 

90 

82 

78 

78

80 

84 

70 

45 

74

46 

47 

81 

60 

84

82 

86

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

Sulfate 

(S0«)

5.5 

13 

7.7 

9.5 

8.6

12 

7.4 

5.8 

3.7 

5.7

3.7 

9.3 

13 

10 

11

14 

11

Chloride 

(Cl)

1.7 

6.3 

2.7 

2.2 

3.5

3.8 

5.0 

3.0 

1.6 

3.0

1.9 

2.2 

3.0 

2.2 

2.6

2.7 

2.2

Fluoride 

(P)

Nitrate 

(NO,
June 1-30, 1966...

Weighted average

Time-weighted

196

"

12 

8 5

9.6

3 3

90

82

80

0

-

11

8 0

9.8

3 4

3.2

2 5

2 4

2.7

Analyses of additional samples

June 20, 1966..... A207 13

18

22 3.9 7.9 1.3 95 0 4.9 1.6 .3 .2 

A Discharge at time of sampling.

Temperature (°F) of water October 1965 to Sep

November ..... 

December .....

April ..........

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

June..........

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

September .....

1

41 

32

52

68

2

38 

32

52

68

3

35

32

52

68

4

35

32

1?

54

68

5

42 

32

3?

54

67

6

32 

32

3?

54

55

64

7

32

32

3?

54

58

7n

65

8

32 

32

3?

54

56

fift

f-3

9

32 

32

3?

52

1R

7n

64

10

32 

32

3?

54

70

65

1 1

32 

32

38

54

7n

66

12

32 

32

18

52

56

7n

67

13

32 

32

38

58

70

64

14

37 

32

3?

3?

5B

70

63

15

38 

32

3?

38

55

73

63

65

Day

16

41 

32

3?

38

54

68

65

17

41

38 

32

3?

3?

38

58

69

65

18

4?

38 

32

3?

3?

4?

58

71

6B

66

19

4?

37 

32

3?

3?

38

60

70

fi8

66

20

43

35 

32

3?

3?

44

59

73

63

65

21

4?

32

32

3?

3?

4?

58

7-)

68

69
COLORADO RIVER MAIN STEM Continued

9-0345. COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO. C

Specific conductance (micromhos at 25°C), water year October 196

Day

10.....

13.....

16.....

19.....

Average

October

145

125

124

138

123

137

November

142

151

143

143

145

December

153

151

150

151

149

January

159

165

166

164

153

February

130

64

86

84

105

March

81

84

85

84

83

98

April

131

May

--
EAGLE RIVER BASIN

9-0690. EAGLE RIVER AT GYPSUM, COLO.

LOCATION. Lat 39°39'00", long 106°57'06", at bridge at Gypsum, Eagle County, about 400 feet upstream 

U.S. Highways 6 and 24, and about 550 feet upstream from gaging station. 

DRAINAGE AREA. 844 square miles. 

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1966.

Water temperatures: April 1949 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 686 ppm Sept. 1-30; minimum, 133 ppra June 1-5.

Hardness: Maximum, 432 ppm Sept. 1-30; minimum, 98 ppm May 19 to June 5.

Specific conductance: Maximum daily, 1,080 micromhos Sept. 29; minimum daily, 201 raicromhos May 26

Water temperatures: Maximum, 72°F July 14, 18; minimum, freezing point on many days during Novembe

EXTREMES, 1947-66. Dissolved solids: Maximum, 1,370 ppm Aug. 11, 12, 1952; minimum, 102 ppm May 26-

Hardness (1947-50, 1957-66): Maximum, 600 ppm Dec. 7-9, 1964; minimum, 70 ppm June 23, 1957.

Specific conductance: Maximum daily, 1,850 micromhos Aug. 6, 1949; minimum daily, 155 micromhos May 

Water temperatures (1949-66): Maximum, 76°F Aug. 24, 1949; minimum, freezing point on many days du

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

more comprehensive definition of water quality at this station. Maximum observed during water year

during water year: Hardness, 90 ppm May 27. Records of discharge are given for Eagle River below 

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 1-20, 1965...

Jan. -31, 1966...

May 1 2

May 5-6...........

Mean 

discharge

(cfs)

420 

295 

253 

209 

180

172 

163 

235 

256 

200

250 

294 

340 

464 

520

640 

852 

1090 

1390

Silica 

(S10,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

30 

45 

52 

46 

57

62 

54 

35 

33 

55

33 

29 

17 

8.5 

4.1

21 

13 

13 

11

Potassium 

(K)

Blcarbonate 

(HCO.)

126 

147 

159 

167 

169

168 

169 

164 

153 

163

140 

133 

122 

119 

136

122 

114 

140 

108

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Suliate 

(SO,)

144 

184 

212 

227 

238

236 

240 

209 

170 

221

167 

132 

102 

58 

56

90 

46 

61 

46

Chloride 

(Cl)

38 

57 

68 

62 

73

79 

74 

44 

41 

73

42 

34 

27 

14 

6.3

19 

5.8 

14 

4.8

Fluoride

(F)

Nitrat

(NO
EAGLE RIVER BASIN Contir

9-0690. EAGLE RIVER AT GYPSUM, COLO. Contin

Chemical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

May 9-12..........

Weighted average

Time-weighted

Tons per day... .

Mean 

discharge

(eta)

1755 

1452 

834 

1329 

1456

953 

884 

652 

649 

392

284 

291 

417 

239 

188 

174

"

394

"

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium

(Mg)

Sodium

(Na)

18 

12 

15 

9.0 

8.5

9.9 

15 

21 

27 

32

40 

45 

23 

32 

46 

53

28

39

29

Potassium 

(K)

Bicarbonate 

(HCO,)

138 

86 

95 

78 

71

85 

92 

110 

120 

144

156 

168 

134 

176 

188 

196

125

149

133

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

-

--

Sulfate 

(S04)

69 

47 

68 

42 

45

60 

75 

102 

118 

155

175 

187 

128 

190 

240 

274

128

179

136

Chloride 

(Cl)

8.7 

7.5 

12 

7.2 

8.3

13 

21 

31 

30 

38

54 

58 

32 

54 

66 

72

34

51

37

Fluoride 

(F)

Ni

tra

(NO

Analyses of additional samples

A187

7.4

9.1

103

115

24

5.8

35

56

7.0

50

2.4

1.4

.9

3.1

160

71

194

0

0

205

233

33

278

60

78

4.5

66

0.2

.5

.3

.4

1

1

A Discharge at time of sampling.
COLORADO RIVER BASIN

r-- -4- -H o * oo-tf-f- r-- f- r~ o o f~ co r~ c o ooocc ooooci

3

 <

« »

5 S ? 

5 °-

o *

o: >

1

I 

I

1 

I
EAGLE RIVER BASIN Continued

9-0690. EAGLE RIVER AT GYPSUM, COLO. Cont

Temperature (°F) of water, water year October 1965 to 

October .......

November .....

December .....

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

August ........

September .....

1

*r>

45

32

5B

60

2

4R

4fl

32

ft?

55

3

44

41".

3?

6?

56

4

47

41

32

5P

59

5

51

IP

43

5*

58

6

45

3R

32

56

56

7

44

41

32

64

62

8

43

40

33

55

57

9

47

41

32

54

57

10

46

43

33

54

55

11

45

41

35

57

62

12

4fl

41

34

5R

55

13

40

4?

43

55

55

14

43

41

35

61

65

15

41

40

32

*n

57

58

51

Day

16

49

40

32

5?

61

56

17

48

41

32

59

52

18

49

45

32

37

5?

55

53

19

42

40

32

55

65

5Z

20

42

41

33

V>

53

61

62
COLORADO RIVER MAIN STEM

9-0711. COLORADO RIVER NEAR GLENWOOD SPRINGS, 

(Irrigation network station)

LOCATION. Lat 39°34'12", long 107°13'34", at Shoshone powerplant, 6 miles upstream from gaging stati

upstream from Roaring Fork River.

DRAINAGE AREA. 4,560 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1941 to September 1966.

Water temperatures: May 1949 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 441 ppm June 24-30; minimum, 184 ppm Aug. 23-27.

Hardness: Maximum, 222 ppm June 24-30; minimum, 120 ppm May 8-13, 21-31.

Specific conductance: Maximum daily, 753 micromhos June 28; minimum daily, 289 micromhos Aug. 27.

Water temperatures: Maximum, 70°F July 16, 31, Aug. 1, 2; minimum, freezing point on many days dur

EXTREMES, 1941-66. Dissolved solids: Maximum, 2,030 ppm Aug. 10, 1947; minimum, 105 ppm June 1-10, 

Hardness: Maximum, 1,480 ppm Aug. 10, 1947; minimum, 72 ppm June 1-20, 1942.

Specific conductance: Maximum daily, 2,260 micromhos Aug. 10, 1947; minimum daily, 153 micromhos M

Water temperatures (1949-66): Maximum, 71 n F July 31, 1954, Aug. 19, 1955; minimum, freezing point 

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

more comprehensive definition of water quality at this station. Records of discharge are given fo

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. -31, 1965...

Jan. -31, 1966...

Aug. 18 20.... ....

Mean 

discharge

(cfs)

1550 

1436 

1428 

1267 

1262

1478 

1410 

2617 

3892 

2460

3155 

2448 

1712 

1313 

1440

1307 

1190 

1249 

1157

Silica 

(SiOj)

10

Iron 

(Fe)

Calcium 

(Ca)

48

Magnesium 

(Mg)

10

Sodium

(Na)

52 

58 

57 

59 

62

59 

47 

25 

19 

28

21 

32 

46 

59

52

64 

70 

61 

1.6

Potassium 

(K)

Bicarbonate 

(HCO,)

122 

126 

119 

116 

113

116 

126 

116 

106 

106

97 

110 

129

144 

138

144 

140 

136 

224

Carbonate 

(CO,)

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Sulfate 

(S04 )

90 

89 

76 

67 

78

81 

70 

45 

37 

53

42 

63 

88 

109 

92

100 

117 

96 

13

Chloride 

(Cl)

68 

78 

78 

88 

82

70 

72 

35 

26 

43

31 

45 

64 

84 

72

76 

78 

78 

1.9

Fluoride

(P)

Ni

trat

(NO
COLORADO RIVER MAIN STEM Continued

9-0711. COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO. 

Chemical analyses, in parts per million, water year October 1965 t

Date 

of 

collection

Aug. 21-22, 1966..

Weighted average

Time -weigh ted

Tons per day....

Mean 

discharge

(cfs)

1250 

1226 

1202 

1149

-

1547

--

Silica 

(SIC-,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

57 

.5 

57 

61

49

52

203

Potassium 

(K)

Bicarbonate 

(HCO,)

140 

216 

124 

132

123

125

512

Carbonate

(cog

0 

0 

0 

0

--

--

Sulfate 

(S04 )

99 

11 

93 

97

75

79

315

Chloride 

(Cl)

76 

3.2 

78 

82

66

70

276

Fluoride

(F)

N

tra

(N

Analyses of additional samples

9 4

9 0

45

43

Tempe (°F) of water, wate October 1965 to 

October .......

November ..... 

December .....

February. ......

March .........

June ..........

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

Augusr . .......

September .....

Day

1

itK

42

33

33

34

50

64

70

60

2

47

32

32

3ft

50

64

7n

60

3

51

3?

32

3?

54

65

6P

60

4

=)0

32

32

3?

53

66

60

5

=JO

33

32

32

52

64

65

60

6

48

33

33

36

52

65

65

5P

7

48

32

34

35

52

66

67

58

8

48

32

34

53

64

67

58

9

48

33

3*

34

49

66

65

58

10

48

32

33

33

48

65

60

11

32

33

33

46

66

66

60

12

33

~~

46

67

61

58

13

32

33

43

46

66

57

14

32

32

~

46

66

64

58

15

32

32

43

47

66

65

57

16

32

32

41

52

70

66

55

17

32

40

53

68

57

18

32

32

36

53

69

67

19

38

52

69

67

58

20

33

33

43

52

69

65

58

2

4

3

3

4

5

6

6

6
COLORADO RIVER MAIN STEM Continued

9-0711. COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO. C

Specific conductance (mieromhos at 25°C), water year October 19

Day

1.....

3.....

17.....

18.....

19.....

23.....

25..... 

26.....

28..... 

29.....

31.....

Average

October

561

611 

586

606

593

593 

597

605 

611

£23

587

November

626

624

20

597 

611

621

606

615

616

622

December

617

616 

612

546

528

581 

540

574

527

592

January

548

623 

659

619 

638

661

604

585 

604

719

679

605

February

664

667 

625

592 

531

574

569

540

559

576

March

556

538 

566

588

553 

541

561

554

564 

535

507 

466

460

552

April

471

469

621

586

685

680 

650

526 

543

583

May

410

457

413

336

338 

323

377 

378

348

376
ROARING FORK RIVER BASIN

9-0850. ROARING FORK RIVER AT GLENWOOD SPRINGS, 

LOCATION. Lat 39°32'37", long 107°19'44", at gaging station at Glenwood Springs, Garfield County, 2

DRAINAGE AREA.--1,460 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: November 1958 to August 1961, May 1962 to September 1966.

Water temperatures: May 1962 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 509 ppm Sept. 1-30; minimum, 158 ppm May 8-11.

Hardness: Maximum, 318 ppm Sept. 1-30; minimum, 102 ppm May 8-11.

Specific conductance: Maximum daily, 859 micromhos Sept. 24; minimum daily, 211 micromhos May 9.

Water temperatures: Maximum, 72°F July 30; minimum, 33°F on several days during December to Februa

EXTREMES, 1962-66. Dissolved solids: Maximum, 509 ppm Sept. 1-30, 1966; minimum, 124 ppm July 1-13

Hardness: Maximum, 320 ppm Oct. 1-13, 1963; minimum, 93 ppm July 1-13, 1965.

Specific conductance: Maximum daily, 859 micromhos Sept. 24, 1966; minimum daily, 189 micromhos M

Water temperatures: Maximum, 72°F July 30, 1966; minimum, freezing point on many days during wint

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and repor

more comprehensive definition of water quality at this station.

Chemical analyses, in parts per million, water year October 1

Date 

of 

collection

Oct. -31, 1965...

Jan. -31, 1966...

May 12 20

July 13-31........

Mean 

discharge 

(cfs)

1026 

671 

539 

424 

383

392 

507 

772 

1720 

2800

3200 

3170 

1738 

2724

2778

2371 

1852 

1918 

1298 

895

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

21 

21 

26 

35 

38

22 

15 

8.7 

9.7 

9.2

19 

8.5 

10 

8.0 

7.1

6.4 

10 

9.4 

16 

18

Potassium 

(K)

Blcarbonate 

(HCO,)

142 

158 

161 

169 

160

161 

149 

132 

106 

90

120 

82 

97 

87 

96

100 

120 

118 

136 

160

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

2 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04)

106 

117 

136 

152 

156

138 

109 

83 

58 

47

86 

44 

62 

47 

49

55 

67 

68 

84 

102

Chloride 

(Cl)

21 

27 

29 

31 

31

26 

17 

13 

6.9 

4.8

12 

5.2 

8.9 

6.5

7.0

7.5 

13 

12 

21 

28

Fluoride

(F)

N

tra

(NO
Aug. 1-6, 1966....

Weighted average

Time -weighted

Tons per day. .. .

800

425

-

"

27

17

44

170

130

329

0

"

-

113 

132

90

226

34

19

49

Analyses of additional samples

A346 9.5 80 16 20 .5 172 0 139 24 .6 .

A Discharge at time of sampling.

Temperature (°F) of water, water year October 1965 to S

October .......

January. ....... 

February. ......

April.. ........

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

August ........

September. ....

1

52

33 

36

54

58

68

63

2

53

33

36

58

57

70

61

3

58

33 

37

45

5fl

70

63

4

54

35 

37

50

57

67

64

5

53

34

38

48

57

69

64

6

54

38

35

37

45

55

69

63

7

54

38

36 

37

46

57

68

63

8

53

38

38 

36

47

58

69

64

9

54

38

39 

36

50

58

65

65

10

55

38

38 

36

51

58

69

63

11

56

39

37 

36

52

60

68

62

12

53

39

38 

34

53

58

64

60

13

52

37

38 

34

53

57

68

60

14

54

36

38 

34

55

59

68

62

15

53

35

38 

34

56

58

68

59

Day

16

52

35

38 

33

56

56

69

61

17

50

33

36 

36

54

59

67

62

18

48

33

36 

36

52

60

66

63

19

52

33

35 

36

45

60

68

63

20

52

33

34 

36

49

57

67

64

21

5

3

3

4

5

6

6

6
ROARING FORK RIVER BASIN Continued

9-0850. ROARING FORK RIVER AT GLENWOOD SPRINGS, COLO. 

Specific conductance (micromhos at 25°c), water year October 19

Day

1.....

4.....

9.....

11..... 

12.....

15.....

21.....

23.....

Average

October

47S

51

50

486

492 

490

502 

494

526

536

November

545

551 

551

563

575

575

580 

570

511

529

December

558

566 

586

585

583

571

580

607 

608

587

634

564

January

552

643 

666

598

598 

620

605 

603

640

617

February

607

642 

642

612

537 

619

612

618

635

March

615

628 

652

614

578 

573

548

572

626

580

April

442

399 

463

452

410 

441

450

441

451

425

May

32?

261 

285

211

254 

274

321 

327

246

254

266
COLORADO RIVER MAIN STEM 

9-0955. COLORADO RIVER NEAR CAMEO, COLO.

LOCATION. Lat 39°11 1 20", long 108°16'56", at Grand Valley project diversion dam, 3.7 miles upstream 

Creek, and 5.9 miles downstream from gaging station.

DRAINAGE AREA. 8,050 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1933 to September 1966.

Water temperatures: April 1949 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 691 ppm Sept. 1-30; minimum, 259 ppm May 22-31.

Hardness: Maximum, 268 ppm Sept. 1-30; minimum, 141 ppm May 22-31.

Specific conductance: Maximum daily, 1,230 micromhos Sept. 26, 27; minimum daily, 408 micromhos Ma

Water temperatures: Maximum, 73°F on several days during July; minimum, freezing point on many day

EXTREMES, 1933-66. Dissolved solids (1933-43, 1950-66): Maximum, 1,080 ppm Sept. 22, 1962; minimum, 

Hardness (1933-35, 1957-66): Maximum, 474 ppm Sept. 22, 1962; minimum, 98 ppm June 21-30, 1935.

Specific conductance (1941-66): Maximum daily, 1,860 micromhos June 16, 1964; minimum daily, 244 m

Water temperatures (1949-66): Maximum, 76°F Aug. 16, 1962; minimum, freezing point on many days du

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

for more comprehensive definition of water quality at this station.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 1-31, 1965...

Jan. 1-31, 1966...

July 1 31.........

Mean 

discharge

(cfs)

2713 

2309 

2205 

2132 

2707

1853 

1781 

2130 

2247 

2442

2028 

2610 

3842 

6915 

4913

6721 

6603 

4493 

3490 

2555

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

95 

104 

118 

113 

106

129 

134 

120 

93 

93

103 

88 

66 

37 

50

34 

35 

55 

75 

93

Potassium 

(K)

Bicarbonate 

(HCO,)

156 

158 

131 

102 

102

151 

152 

160 

154 

150

125 

98 

148 

137 

130

115 

110 

126 

143 

159

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

6

1

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0t)

125 

139 

137 

126 

131

136 

130 

139 

113 

113

127 

107 

79 

56 

72

52 

58 

81 

106 

121

Chloride

(ci)

121 

141 

158 

153 

130

172 

182 

150 

118 

115

155 

110 

91 

50 

67

47 

49 

75 

104 

127

Fluoride

(F)

Nitrat

(NO
COLORADO RIVER MAIN STEM Continued 

9-0955. COLORADO RIVER NEAR CAMEO, COLO. Cont

Chemical a

Date 

of 

collection

Aug. 1-31, 1966...

Weighted average

Time-weighted

Tons per day. . . .

Mean 

discharge 

(cfs)

1934 

1700

"

2702

"

Silica 

(S102)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

124 

135

90

103

654

Potassium 

(K)

Blcarbonate 

(HCOJ

172 

168

145

150

1060

Carbonate 

(COJ

0

0

-

-

-

Sulfate 

(S04 )

144 

151

111

123

806

Chloride 

(Cl)

168 

189

120

138

874

Fluorlde 

(F)

Ni

trat

(NO

Analyses of additional samples

Mar. 24, 1966..... A1960 9.2 60 18 106 3.5

158

155 0 128

131

139

0.4

.5

2.

2.

A Discharge at time of sampling.

Temperature (°F) of water, water year October 1965 to S

October .......

November ..... 

December .....

February. ......

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

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

September .....

]

52

32

32

64

2

52

32

32

62

3

52

33

32

63

4

5?

33

32

63

5

52

33

32

64

6

52

33

32

64

7

52

33

32

64

8

52

34

32

63

9

52

34

32

63

10

51

35

32

63

] ]

51

35

32

62

12

51

36

32

62

13

51

36

32

62

14

51

35

32

61

15

_

35

32

59

Day

16

52

35

32

59

17

52

34

32

59

18

52

43 

33

32

69

59

19

49

43 

33

32

60

20

46

43 

33

32

60

21

43 

32

32

62
COLORADO RIVER MAIN STEM Continued

9-0955. COLORADO RIVER NEAR CAMEO, COLO. Continu

Specific conductance (micromhos at 25°C), water year October 1965 

Day

Average

October

_

862

November

972

December

926

January

987

1020

February

1020

March

944

April

.

72 8

655

851

786

7R?

848

831

May

514
GUNNISON RIVER BASIN

9-1525. GUNNISON RIVER NEAR GRAND JUNCTION, COL

(Irrigation network station)

LOCATION. Lat 38°59', long 108°27', at gaging station at bridge on State Highway 141, 0.4 mile downst

and 8 miles southeast of Grand Junction, Mesa County. 

DRAINAGE AREA. 7,870 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1931 to September 1966.

Water temperatures: April 1949 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,540 ppm Aug. 1-31; minimum, 358 ppm May 7-11.

Hardness: Maximum, 820 ppm Aug. 1-31; minimum, 220 ppm May 7-11.

Specific conductance: Maximum daily, 1,900 micromhos Aug. 28; minimum daily, 504 micromhos May 9.

Water temperatures: Maximum, 77°F July 28, Aug. 5, 7, 8, 20; minimum, freezing point on many days d

EXTREMES, 1931-66.--Dissolved solids: Maximum, 2,820 ppm Sept. 11-20, 1934; minimum, 203 ppm May 11-20

Hardness (1931-35, 1943-66): Maximum, 1,370 ppm Sept. 1-20, 1934; minimum, 130 ppm May 22-26, 1964.

Specific conductance (1941-66): Maximum daily, 2,730 micromhos Sept. 10, 1956; minimum daily, 280 m

Water temperatures (1949-66): Maximum, 86°F Aug. 13, 1958; minimum, freezing point on many days dur

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and reporte

for more comprehensive definition of water quality at this station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-13, 1965...

Jan. 1-31, 1966...

May 13-23.........

Mean 

discharge

(cfs)

1945 

1940 

1085 

1063 

983

845 

661 

694 

1140 

2443

3588 

2408 

3333 

2403 

3458

4443 

5100 

3780 

2532

Silica 

(SiO,)

Iron

(Fe)

Calcium

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

69 

90 

114 

125 

132

134 

141 

150 

103 

65

39 

49 

45 

59 

49

29 

26 

48 

56

Potassium 

(K)

Bicarbonate 

(HCO,)

185 

208 

245 

245 

163

192 

244 

227 

204 

169

137 

146 

130 

143 

131

140 

132 

130 

150

Carbonate 

(CO,)

0 

0 

0 

0 

0

3 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Sulfate 

(S0«)

462 

544 

710 

745 

689

712 

754 

757 

519 

305

181 

226 

204 

286 

233

166 

155 

239 

340

Chloride 

(CD

10 

14 

18 

19 

19

20 

18 

22 

15 

9.6

6.2 

7.6 

7.2 

9.3 

7.8

5.4 

5.1 

7.3 

8.7

Fluoride 

(F)

Nitrate

(Ncg
May 24-27, 1966...

uly 1.. ..........

Weighted average

Time-weighted

Tons per day. . ..

2352

"

"

58

35

73

138

121

84

327

151

198

180

178

696

0

"

-

368

347

509

881

487

1900

9.1

12

19

12

48

Analyses of additional samples

Mar. 16, 1966.....

Aug. 5............

A1240

A775

13 

13

16

108

203

58

67

88

121

7.0

7.0

239

196

236

0

0

518

808

14 

9 0

17

.7

1.7

6.1 

3 1

6.5

A Discharge at time of sampling.

B Calculated from determined constituents.

Temperature ( n F) of water, water year October 1965 to Sept

October .......

November ..... 

December .....

January........ 

February. ......

March ......... 

April ..........

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

August........ 

September .....

1

 55

48 

37.

49

58

RA

65

2

50

48 

3?

48

58

ftT

61

3

51

47 

3?

32

4ft

5?

A*

62

4

53

48 

37

44

50

ftP

65

5

59

32

42

60

70

64

6

57

36

44

ft?

70

63

7

54

32 

34

46

57

AO

70

62

8

53

36

48

59

70

64

9

52

37

49

67

71

63

10

53

38 

32

50 

55

60

71

65

11

53

32

33

48

67

76

63

12

53

44

AO

72

68 

61

13

51

39

50 

*7

67

70

70 

62

14

52

32 

37

50

A3

71

68 

62

15

53

37

49 

55

64

70

66

60

Day

16

54

37

51 

56

65

71

74 

60

17

52

35 

32

55 

59

64

72

75 

60

18

50

33

51 

58

63

69 

60

19

48

32

46

65

70 

60

20

52

32

42

57

67

77 

60

21

32

35

45 

51

65

67 

62

2

3

4

4

6

6

6

6
GUNNISON RIVER BASIN Continued

9-1525. GUNNISON RIVER NEAR GRAND JUNCTION, COLO. Con

Specific conductance (micromhos at 25°C), water year October 196

Day

2.....

Average

October

1050

1280

November

1720

1710

December January February

1580

March

1690

1330

April

576

829

686

May

56*

'

'

7*0
COLORADO RIVER MAIN STEM

9-1635.3. COLORADO RIVER BELOW COLORADO-UTAH STATE 

LOCATION. Lat 39°091 , long 108°57' , at Westwater, Grand County, Utah, 9.5 miles downstream from gagin

State line.

DRAINAGE AREA. 17,900 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: May 1962 to September 1966.

Water temperatures: May 1962 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,430 ppm Aug. 1-31; minimum, 342 ppm May 7-10.

Hardness: Maximum, 724 ppm Aug. 1-31; minimum, 200 ppm May 7-10.

Specific conductance: Maximum daily, 2,050 micromhos Aug. 31; minimum daily, 511 micromhos May 10.

Water temperatures: Maximum, 82°F July 30; minimum, freezing point on many days during winter month

EXTREMES, 1962-66. Dissolved solids: Maximum, 2,610 ppm Jan. 3-5, 1965; minimum, 243 ppm June 14-30, 

Hardness: Maximum, 1,080 ppm Jan. 3-5, 1965; minimum, 150 ppm June 14-30, 1965.

Specific conductance: Maximum daily, 3,680 micromhos Mar. 19, 1965; minimum daily, 357 micromhos Ju

Water temperatures: Maximum, 82°F July 30, 1966; minimum, freezing point on many days during winter 

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and reporte

for more comprehensive definition of water quality at this station. Records of discharge are given 

Maximum observed during water year: Dissolved solids, 1,480 ppm Sept. 27, 1966; hardness, 744 ppm 

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-14, 1965. .

Jan. 1-31, 1966. .

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge 

(cfs)

5300 

4777 

3786 

3567 

2770 

2762

3624 

5459 

4437 

7892 

13000 

8284

8899 

8874 

5248 

3455 

2432 

1929 

2475

~

4087

-

Silica 

(S102)

Iron

(Fe)

Calcium 

(Ca)

Magnesium

(Mg)

Sodium

(Na)

95 

112 

135 

132 

149 

159

119 

52 

81 

53 

33 

58

49 

51 

77 

107 

134 

176 

169

103

121

1140

Potassium

(K)

Blearbonate 

(HCOJ

154 

190 

200 

197 

207 

200

182 

139 

156 

142 

128 

142

126 

138 

162 

180 

198 

220 

220

174

186

1920

Carbonate 

(CO,)

4 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

__

Sulfate 

(SO.)

346 

426 

435 

399 

398 

390

340 

163 

280 

177 

123 

227

187 

204 

304 

422 

572 

714 

681

353

413

3900

Chloride 

(Cl)

76 

82 

103 

111 

135 

140

111 

62 

68 

44 

28 

49

41 

42 

64 

92 

112 

130 

130

87

101

956

Fluoride

(F)

Nitrate 

(NOJ
COLORADO RIVER MAIN STEM Continued 

9-1635.3. COLORADO RIVER BELOW COLORADO-UTAH STATE LI

Analyses of additional samples (instantaneous disch

Date 

of 

collection

Dec. 15, 1965....

Sept. 27. ........

Mean 

discharge 

(eta)

3830 

4920 

11140 

2100

Silica 

(S102)

12 

10 

9.2 

11

Iron 

(Fe)

Calcium 

(Ca)

103 

67 

63 

177

Magnesium 

(Mg)

41 

23 

20 

73

Sodium

(Na)

121 

69 

47 

168

Potassium 

(K)

4.4 

4.9 

2.4 

6.0

Bicarbonate 

(HCO,)

194 

150 

127 

220

Carbonate

(ccg

0 

0 

0 

0

Sulfate 

(SO,)

381 

180 

179 

731

Chloride 

(Cl)

103 

66 

36 

133

Fluoride

(F)

0.5 

.5 

.5 

.7

Nitrate 

(NO

4.

4.

2.

21

Month

November ..... 

December .....

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

September .....

1

57 

49 

36

32 

32 

39

54 

61 

60

72

77 

67

2

59 

46 

35

32 

32

40

54

64 

60

68 

76

65

3

61 

48 

35

32 

33

40

52 

63 

63

68 

76 

64

4

63 

48 

36

32

34 

41

52 

64 

61

70 

T, 

66

5

64 

49

36

32 

32 

42

51 

65 

62

72

71 

66

Tempera

6

65 

47 

37

33 

32

40

50 

64 

61

75

71 

68

7

63 

46 

37

32 

32 

42

50 

64 

62

74

75

ture (°F) of water, water year October 1965 to S

Day

8

58 

47

37

32 

32 

44

52 

64 

61

75

75

9

59 

48 

38

33 

33 

44

54 

61 

64

75

77

10

56 

47 

36

33 

34 

45

55 

58 

65

75 

74

11

55 

46 

37

32

34 

47

55 

56 

64

76 

77

12

54 

46 

39

33 

33 

45

55 

55 

64

75

75

13

57 

47 

37

33 

32 

46

56 

57 

66

74 

72

14

58 

47 

36

32

33 

47

56 

58 

68

73 

76

15

56 

47 

35

33 

33 

45

57 

58

70

71 

78 

63

16

55 

46 

37

32

32 

46

55 

62

69

74 

80 

63

17

52 

46 

34

32

33 

46

56 

65

70

73

79 

61

18

54 

47

33

32 

33

44

53

66 

72

74 

76 

63

19

55 

46

33

32

33 

45

52 

68

71

80 

73 

63

20

56 

47 

33

32

34 

45

50 

62 

70

78 

72 

64

21

54 

45 

33

32 

36

46

50 

60 

70

79 

69 

68
COLORADO RIVER MAIN STEM Continued

9-1635.3. COLORADO RIVER BELOW COLORADO-UTAH STATE LINE 

Specific conductance (micromhos at 25°C), water year October 1965 

Day

1.....

4.....

15.....

19.....

23.....

26.....

29.....

31.....

Average

October

1080

1080

1A70

1350

1220

1220

1220

1400

1220

November

1430

1430

1440

1370

1320

1320

1310

1390

December

1460

1400

1380

1410

1630

1260

1350

1220

1370

January

1230

1330

1330

1380

1470

1490

1480

1460

1400

February

1490

1500

1470

1330

1450

1490

1430

March

1370

1380

1090

1130

1200

1200

1080

1050

1220

April

713

705

879

914

1020

1090

806

871

May

766

694

578

768

786

897

720

681

711

695

731
DOLORES RIVER BASIN

9-1800. DOLORES RIVER NEAR CISCO, UTAH

LOCATION. Lat 38°47'50", long 109°11'40", at gaging station 9 miles upstream from mouth, 13.5 miles d

east of Cisco, Grand County.

DRAINAGE AREA. 4,580 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1966.

Water temperatures: March 1951 to September 1959, October 1964 to September 1966.

Sediment records: March 1951 to September 1964. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 3,510 ppm Sept. 15-19; minimum, 264 ppm May 1-15.

Hardness: Maximum, 950 ppm Aug. 26-31, Sept. 15-19; minimum, 175 ppm May 1-15.

Specific conductance: Maximum daily, 5,500 micromhos Jan. 21; minimum daily, 382 micromhos May 5. 

EXTREMES, 1951-66. Dissolved solids (1953-66): Maximum, 8,220 ppm Mar. 4, 1964; minimum, 200 ppm Jun

Hardness (1953-66): Maximum, 1,900 ppm Sept. 21-30, 1956; minimum, 132 ppm May 1-31, 1958.

Specific conductance: Maximum daily, 12,800 micromhos Mar. 4, 1964; minimum daily, 254 micromhos Ma

Water temperatures (1951-59): Maximum, 85°F Aug. 14, 1958; minimum, freezing point on many days dur

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-10, 1965. .

Oct. 15. .........

Oct. 16-17.......

Nov. 14-25. ......

Jan. 1-7, 1966. . .

Feb. 1-10. .......

Mean 

discharge

(cfs)

362 

272 

257 

606 

921

444 

361 

302 

304 

513

328 

359 

336 

403 

424

448 

287 

271 

313 

281

Silica

(S10a)

6.2 

6.6 

4.0

Iron 

(Fe)

Calcium

(Ca)

98 

106 

111 

105

Magnesium

(Mg)

36 

46 

50 

42

Sodium

(Na)

290 

491 

179 

481 

108

224 

285 

464 

569 

205

210 

452 

253 

193 

336

494 

955 

413 

555 

426

Potassium 

(K)

Bicarbonate 

(HCO,)

148 

104 

168 

153 

165

161 

168 

149 

173 

182

182 

182 

157 

166 

196

201 

208 

214 

200 

184

Carbonate (ccg

0 

0 

0 

0 

0

0 

0 

8 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

271 

385 

372 

347 

291

362 

289 

332 

359 

322

344 

320 

579 

616 

314

353 

441 

354 

351 

314

Chloride 

(Cl)

430 

725 

145 

690 

112

298 

405 

692 

848 

278

275 

670 

121 

188 

482

735 

1480 

600 

848 

630

Fluorlde

(F)

Nitrate 

(NO,)

6.9 

18 

5.8 

7.8 

3.6

6.8 

4.0 

5.6 

8.0 

4. 9

3.0 

6.5 

4.3 

8.9 

8.6

12 

18 

8.2 

15 

9.3
Feb. 11-14, 1966.

June 9-18. .......

July 1. ..........

Aug. 13-17. ......

Sept. 6-11.......

Sept. 15-19...... 

Sept. 20-30......

Weighted average

Time-weighted 

average. .....

174 

236

2069

1740

671

448

287

36.8

101

91.5

84

77. 2 

46. 9

-

699

-

_

_

_

_

_

_

~

_

_

~

_

-

__

~

_

_

_

_

~

_

_

~

_

--

182

85

25

39

234

284

371

293

887 

467

140

303

264

208

134

148

144

208

160

164 

104

139

153

0

0

0

0 

0

_

389

257

477

 JOT

647

749 

883

182

337

q^o

195

57

350

452

675

508

350

1380 

625

194

428

8.

18

2 

11

23

23 

36

7.5

10

Analyses of additional samples (instantaneous disch

Apr. 18, 1965.... 

June 6, 1966. ....

1960 

1140

6.0 

4.8

52 

53

13 

15

37 

46

4.2 

3.2

120 

89

0 

0

88 

123

44

60

0.3 

.5

11 

13
DOLORES RIVER BASIN--Continued

-1800. DOLORES RIVER NEAR CISCO, UTAH--Continu

Specific conductance (micromhos at 25°C), water year October 19

Day

3.....

12.....

15.....

22.....

27.....

28

Average

October

1430

~

November

3160

3810

3170

-

December

2770

-

January

1820

2370

2380

2930

3640

February

3070

34 10

2810

-

March

-

658

~

April

705

564

475

May

-

436

507

505

625

~
QUALITY OF SURFACE WATERS, 1966

3 S

kj y M o

I I «n I » <

October Novem Decem
COLORADO RIVER MAIN STEM

9-1805. COLORADO RIVER NEAR CISCO, UTAH 

(Irrigation network station)

LOCATION. Lat 38°48'40", long 109°17'35", at gaging station, 1 mile downstream from Dolores River, 11 

Colorado-Utah State line, 97 miles upstream from Green River, and 235 miles upstream from San Juan 

DRAINAGE AREA. 24,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1966.

Water temperatures: May 1949 to September 1959, October 1964 to September 1966.

Sediment records: May 1930 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,880 ppm Nov. 5-9; minimum, 325 ppm May 1-12.

Hardness: Maximum, 750 ppm Aug. 21-31; minimum, 201 ppm May 1-12.

Specific conductance: Maximum daily, 3,000 micromhos Nov. 7; minimum daily, 482 micromhos May 10.

Sediment concentrations: Maximum daily, 8,800 ppm Oct. 18; minimum daily, 14 ppm Oct. 14.

Sediment loads: Maximum daily, 300,000 tons Oct. 16; minimum daily, 170 tons Oct. 14. 

EXTREMES, 1928-66. Dissolved solids (1928-52, 1953-66): Maximum, 2,670 ppm Aug. 11-2O, 1940; minimum

Hardness (1928-35, 1943-52, 1953-66): Maximum, 1,090 ppm Sept. 1-10, 1934; minimum, 131 ppm June 11

Specific conductance (1941-52, 1953-66): Maximum daily, 4,820 micromhos Dec. 13, 1957; minimum dail

Water temperatures (1949-52, 1953-59): Maximum, 81°F Aug. 5, 1949; minimum, freezing point on many 

Sediment concentrations (1930-66): Maximum daily, 66,300 ppm Oct. 27, 1951; minimum daily, 4 ppm Au

Sediment loads (1930-66): Maximum daily, 2,790,000 tons Oct. 14, 1941; minimum daily, 14 tons Aug. 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-12, 1965. .

Nov. 1-4. ........

Jan. 1-4, 1966. . .

Mar. 28-31.......

Mean 

discharge 

(cf»)

6010 

6310 

5557 

4260 

4000

4251 

3950 

3849 

3950 

3272

3119 

3040 

2986 

4827 

7078

Silica 

(SiOJ

10 

5.7

11 

14 

11 

11 

7.2

12 

10 

8.2 

9.0 

8.6

Iron

(Fe)

Calcium 

(Ca)

80 

90 

111 

115 

108

120 

108 

106 

90 

106

89 

101 

92 

78 

71

Magnesium 

(Mg)

45 

54 

39 

43 

49

46 

44 

43 

40 

44

49 

49 

42 

27 

22

Sodium 

(Na)

114 

286 

118 

144 

467

163 

140 

167 

138 

359

177 

156 

171 

93 

75

Potassium

(K)

Bicarbonate 

(HCO,)

172 

140 

184 

190 

160

190 

196 

191 

188 

190

196 

180 

175 

158 

154

Carbonate

(cog

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

337 

371 

384 

421 

355

440 

398 

393 

361 

329

374 

362 

360 

247 

2O1

Chloride 

(Cl)

98 

395 

100 

128 

695

159 

123 

164 

110 

510

180 

185 

177 

83 

66

Fluoride 

(F)

Nitrate 

(NOJ

3.5 

11 

4.6 

4.3 

5.6

4.2 

6.1 

6.4 

6.1 

11

8.1 

8.3 

6.3 

4.2 

4. 6
Apr. 1-14, 1966. .

May 19-31. ....... 

June 1-8. ........

Aug. 1-20. .......

Sept. 17-18. ..... 

Sept. 19-30. .....

Weighted average

Time-weighted 

average. .....

7969

8000

9685

10050 

10750 

5920

2046

2665 

2188

4844

7.4 

7.9

8.2

7.2 

8.2 

8. 2

8. 9

11 

13

4.9 

10

8.8

9.6

59

63

56 

50 

71

134

156

122 

168

87

102

18

19

24

25 

34 

44

55

71

51

50 

66

37

44

55

55

46 

48 

83

187

382 

206

114

143

140 

141

137

139

128 

134 

148

170

190

21 2

134 

210

163

174

0 

0

0

0

0

0 

0 

0

0

0 

0

..

150 

169

169

105

198

171 

186 

285

389

627 

775

482 

716

309

386

48 

53

58

44

29

40

41 

42 

82

108

135

125

134 

159

508 

150

113

139

3.

5.

4.

5.

2.

2.

4.

4. 

5. 

8.

11

15 

11

5

6

Analyses of additional samples (instantar disch

Apr. 15, 1966. . . . 

June 13. .........

6220 

6620

9.1 

6.5

63 

96

21 

38

54 

96

4.1 

3.6

139 

160

0 

0

158 

316

53 

86

0.4 

.6

7

3

Temperature (°F) of water, water year October 1965 to Se

October .......

December .....

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

June ..........

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

August .......

Day

1

53 

49 

35

34 

32

52 

B?

2

32 

32

51 

55 

64

76

3

32 

34

53 

63 

65

73

4

32 

34

48

76

5

56

35

32 

34

51 

60 

66

80

6

52

32 

35

46 

63 

78

7

37

33 

34

49 

65

80 

71

8

57

35

32 

34

69

76

9

64

37

32 

33

55 

55 

69

80 

76

10

57

38

32 

33

58 

58 

71

78

11

33 

32

52

55 

69

74 

83

12

32 

32

52

73

13

38

33 

32

57 

63

78 

78

14

57

34 

32

51 

61 

73

80 

78

15

35 

32

48 

58

70

16

32 

33 

52

 

69

17 

53

32 

32 

49

80

18

53 

50 

33

32 

32

55 

66 

75

82

19

55 

51 

32

32 

32 

43

52 

65 

72

20

51 

47 

32

32 

32 

49

54

67

83

21

--

32

32 

3

5

5

7
Specif!

COLORADO RIVER MAIN

9-1805. COLORADO RIVER NEAR

conductance (micromhos at 25°C), w

STEM Continued

CISCO, UTAH Continue

.ter year October 1965 

Day

Average

October November December January February March

-

April

695

May

-
COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued 

9-1805. COLORADO RIVER NEAR CISCO, UTAH Continued 

Suspended sediment, water year October 1965 to September 1966

Day

li2..

3..

4..

5..

6..

r..

B..

9..

10..

11..

12..

13..

14..

IS..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

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..

Total

OCTOBER

Mean 

discharge

(cfs)

7030

6810

6620

6570

6400

6290

6000

5BOO

5400

52CO

5100

4900

47CO

4600

7000

8170

7080

7930

8060

6400

58CO

5500

5400

5300

5300

5200

5000

4800

4590

4320

4200

181470

Suspended sediment

Mean

concentration 

(ppm)

310

280

240

210

180

160

130

97

78

67

55

42

28

14

_

6300

8800

5900

3500

1700

1100

680

440

360

340

260

200

150

160

170

Tons

per 

day

5900

5100

4300

3700

3100

2700

2100

1500

1100

940

760

560

360

170

E 100000

E 300000

120000

190000

130000

60000

27000

16000

9900

6300

5200

4800

3500

2600

1900

1900

I«JOO

1013290

JANUARY

5380

4160

3340

2920

2850

3090

3290

3860

4200

4320

4100

3860

3600

3650

3520

3480

3420

3030

2750

3010

2500

2400

2300

2500

2700

2600

2600

2600

27CO

2800

2900

100630

3500

3100

1800

820

480

450

430

400

370

350

300

280

310

270

200

180

200

230

270

310

330

320

290

260

220

190

170

170

180

200

210

_

51000

35000

16000

6500

3700

3800

3800

4200

4200

4100

3300

2900

3200

2700

1900

1700

1800

1900

2000

2500

2200

2100

1800

1800

1600

1300

1200

1200

1300

1500

1600

173800

NOVEMBER

Mean

discharge

(cfs)

4080

4460

4340

4160

4080

4040

4000

3960

3920

3900

3940

3880

3780

3820

4000

3960

4060

4140

4140

4040

3940

3920

5100

4300

4530

5210

5380

4720

4200

3700

12570O

Suspended sediment

Mean

concentration 

(ppm)

180

180

180

180

180

180

180

170

160

140

120

110

110

120

140

140

140

200

240

170

140

130

3300

1000

1500

4500

5600

2000

830

300

_

__

Tons

per 

day

2000

2200

2100

2000

2000

2000

1900

1800

1700

1500

1300

1200

1100

1200

1500

1500

1500

2200

270O

1900

1500

1400

45000

12000

18000

63000

81000

25000

9400

3000

2946OO

FEBRUARY

3120

3250

3140

3000

2890

2850

3250

3760

3420

3250

3090

2910

2770

2800

2980

2960

2670

2700

2910

3120

3270

3270

3070

2920

2840

2920

3000

2980

85110

220

230

240

260

260

260

290

380

430

370

270

230

210

200

180

200

280

390

500

620

730

800

770

700

630

560

500

430

_

1900

2000

2000

2100

2000

2000

2500

3900

4000

3200

2300

1800

1600

1500

1400

1600

2000

2800

3900

5200

6400

7100

6400

5500

4800

4400

4000

3500

91800

DECEMBER

Mean 

discharge

(cfs)

3600

3700

3800

3900

3900

3900

3900

3900

3900

3980

4260

4460

4380

4200

4040

3880

3780

3650

3160

2940

2850

3110

3420

3880

3940

3720

3630

3860

3740

4060

5870

119310

Suspended sediment

Mean

concentration

(Ppm)

260

230

210

190

170

150

130

150

210

280

290

270

240

220

190

170

140

130

140

150

150

180

260

370

480

600

710

820

930

1300

7400

Tons

per 

day

2500

2300

2200

2000

1800

1600

1400

1600

2200

3000

3300

3300

2800

2500

2100

1800

1400

1300

1200

1200

1200

1500

2400

3900

5100

6000

7000

8500

9400

14000

3ROOO

1385OO

MARCH

2920

2920

2890

2800

2530

2420

2600

2980

3520

4280

5230

5380

4900

4460

4610

5320

5870

5740

5050

4360

4760

5100

4860

4340

3820

3840

4420

5560

6810

7620

8320

140230

360

290

220

160

130

110

100

110

350

1500

3300

3500

2800

2200

2000

3400

5300

5000

3400

2100

2200

2200

2300

1600

830

790

1100

1900

3000

2200

3300

_

2800

2300

1700

1200

890

720

700

880

3300

17000

47000

51000

37000

26000

25000

49000

84000

77000

46000

25000

28000

30000

30000

19000

8600

8200

13000

29000

55000

45000

74000

838290

Estimated.
QUALITY OF SURFACE WATERS, 1966

COLORADO RIVER MffIN STEM Cont inued 

9-1805. COLORADO RIVER NEAR CISCO, UTAH Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12-.

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

8790

9550

10100

9750

8450

7250

6860

6500

6720

6960

7620

8290

7680

7050

6360

5940

6170

6810

7250

7120

6980

667C

6430

6380

6310

6360

6690

7420

8210

8370

221040

Suspended sediment

Mean

concentration

(ppm)

4200

6600

8400

6800

3500

1600

1300

910

1200

1400

2100

3200

2200

1500

1300

1200

1300

1100

1000

1100

1000

890

800

750

760

760

890

550

630

660

 .

Tons

per 

day

100000

170000

230000

180000

80000

31000

24000

16000

22000

26000

43000

72000

46000

29000

22000

19000

22000

20000

20000

21000

19000

16000

14000

13000

13000

13000

16000

11000

14000

15000

 .

1337000

JULY

46CO

4700

5030

4760

4500

43CO

3800

3190

2920

2700

2560

2500

2450

2510

2430

2370

2290

2320

2350

2350

2480

2720

2730

2750

2750

2850

2770

2600

2560

2340

2260

93440

200

240

250

200

140

110

110

110

110

110

110

120

120

100

84

76

73

70

86

130

180

310

730

1200

1100

700

360

220

180

150

120

_

2500

3000

3400

2600

1700

1300

1100

950

870

800

760

810

790

680

550

490

450

440

550

820

1200

2300

5400

8900

8200

5400

2700

1500

1200

950

730

63040

MAY

Mean 

discharge

(cfs)

8820

9550

10600

11300

12100

13200

14700

15800

16900

17000

17200

15400

13700

11600

9640

8320

7450

7400

7700

8340

9060

9550

10300

10400

10300

10700

11000

11100

10700

10400

1 1 ion

351330

2370

2240

2260

2390

2350

2630

2730

2470

2200

1970

1780

1720

1670

1690

1840

1840

1830

1700

1600

1650

1760

1760

1830

1920

1850

1720

1690

1680

1740

1690

1850

60420

Suspended sediment

Mean

concentration 

(ppm)

710

810

1000

1100

1300

1500

1800

2100

2400

2400

2400

2600

2100

1600

1200

620

390

400

530

710

780

780

540

540

520

450

370

300

220

150

71

 .

AUGUST

100

90

91

100

95

120

130

110

110

ISO

170

160

140

150

190

190

190

ISO

110

130

150

170

190

230

200

160

150

150

160

150

1800

_

Tons

per 

day

17000

21000

29000

34000

42000

53000

71000

90000

110000

110000

iioooo

110000

78000

50000

31000

14000

7800

8000

11000

16000

19000

20000

15000

15000

14000

13000

11000

9000

6400

4200

7 TOO

114150O

640

540

560

650

600

850

960

730

650

960

820

740

630

680

940

940

940

690

480

580

710

810

940

1200

1000

740

680

680

750

680

9000

31770

JUNE

Mean 

discharge

(cf»)

12200

12800

11900

12600

10700

9550

8660

7580

7250

7080

6740

6720

6450

6360

6220

6150

5990

5780

5710

5650

5540

5380

5870

6500

6080

5510

5050

4900

4650

4650

71673O

Suspended sediment

Mean

tration

(ppm)

270

870

1300

1800

480

540

410

260

220

210

180

180

160

150

140

140

130

130

130

110

87

83

130

160

130

130

140

140

150

150

Tons

per 

day

8900

30000

42000

61000

14000

14000

9600

5300

4300

4000

3300

3300

2800

2600

2400

2300

2100

2000

2000

1700

1300

1200

2100

2800

2100

1900

1900

1900

1900

1900

?366OO

SEPTEMBER

2510

2890

2720

2650

2560

2510

2550

2480

2480

2470

2600

2560

2550

2600

2630

2620

2650

2680

2680

2550

2430

2310

2150

2080

2030

2020

1980

2020

1980

2030

72970

1800

1500

2000

1800

1400

340

290

250

250

250

2600

2200

390

390

280

280

290

290

290

260

240

180

120

120

120

97

82

97

56

69

_

12000

12000

15000

13000

9700

2300

2000

1700

1700

1700

18000

15000

2700

2700

2000

2000

2100

2100

2100

1800

1600

1100

700

670

660

530

440

530

300

300

128510

TOTAL DISCHARGE FOR VEAR ICFS-DAVS). 

TOTAL LOAD FOR YEAR ITONSI..........

1767870

5488700
COLORADO RIVER MAIN STEM Continued 

9-1805. COLORADO RIVER NEAR CISCO, UTAH Cont

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Sept. 12. .........

Sept. 15. .........

Time 

(24 hour)

1330 

1635 

1315 

1320 

1710 

1635

2020 

1500 

1820 

0920 

0850 

0810 

1520

Water 

temperature 

(°F)

53 

54 

45 

34 

46 

55

64 

84 

81 

66 

65 

63 

68

Sampling 

point

Discharge 

(cfs)

6840 

8470 

6010 

5450 

4550 

17800

7350 

2400 

2700 

2260 

2910 

2510 

2630

Sediment 

concentration 

(ppm)

5800 

6930 

14900 

4340 

2310 

2570

387 

82 

611 

1960 

1490 

1660 

279

Sediment 

discharge 

(tons per day)

107000 

158000 

242000 

63900 

28400 

124000

7680 

531 

4450 

12000 

11700 

11200 

1980

Perc

0.002

45 

45 

33 

46 

48 

13

4

48 

50 

49 

51 

41

0.004

52 

51 

40 

59 

58 

14

15

65 

67 

57 

62 

55

0.00
GREEN RIVER BASIN

9-2050. NEW FORK RIVER NEAR BIG PINEY, WY

LOCATION. Lat 42°34', long 109°56', at gaging station at old highway bridge, 2 miles upstream from m

DRAINAGE AREA. 1,230 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: October 1965 to September 1966.

Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66.--Dissolved solids: Maximum, 146 ppm Mar. 1-30; minimum, 44 ppm May 22-31.

Hardness: Maximum, 94 ppm July 6-31; minimum, 30 ppm May 22-31.

Specific conductance: Maximum daily, 254 micromhos Sept. 18; minimum daily, 55 micromhos May 27.

Water temperatures: Maximum, 73°F Aug. 4; minimum, freezing point Nov. 26, 28, Jan. 16, Mar. 1. 

REMARKS. Daily samples for chemical analysis composited by discharge.

Chemical analyses, in parts per million, water year October 1

Date 

of 

collection

Oct. l-ll, 1965... 

Oct 12 31

Jan. 1-11, 1966...

May 22 31

July 6-31, 1966...

Weighted average

Time-weighted

Tons per day. ...

Mean 

discharge 

(cfs)

588 

536 

424 

360 

365

291 

265 

205 

172 

173

214 

1362 

1617 

1860 

1357 

615 

371 

316

"

A536

"

Silica 

(S10,)

7.4 

16 

8.5 

9.4 

9.5

10 

10 

11 

9.5 

9.9

10 

5.5 

4.5 

4.7 

7.3 

10 

9.8 

9.9

8.6

9.7

11

Iron 

(Fe)

Calcium 

(Ca)

20 

20 

22 

26 

26

26 

26 

26 

23

25

24 

10 

8.4 

12 

17 

20 

31 

26

20

23

25

Magnesium 

(Mg)

5.1 

5.4 

5.7 

6.6 

5.8

6.0 

5.2 

4.6 

6.0 

5.8

5.6 

1.9 

2.1 

.7 

3.3 

11 

3.2 

6.0

4.8

5.5

6.2

Sodium 

(Na)

6.8 

7.8 

8.9 

9.1 

9.0

9.5 

10 

8.0 

10 

10

10 

4.8 

2.1 

3.0 

6.3 

12 

12 

13

7.9

9.5

10

Potassium 

(K)

1.4 

2.0 

1.8 

1.9 

1.8

1.6 

1.5 

1.4 

2.2 

2.2

2.0 

.5 

.0 

.0 

.1 

2.2 

1.2 

1.9

1.2

1.6

1.6

Bicarbonate 

(HCO,)

77 

92 

108 

118 

112

110 

104 

108 

98 

104

103 

33 

29 

35 

70 

121 

106 

122

84

100

109

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0

--

--

Sulfate 

(S04 )

13 

12

2.5 

12

21 

9.1 

15 

9.1 

13

12 

13 

9.1 

10 

14 

9.1 

16 

1.4

11

11

14

Chloride 

(Cl)

2.5 

3.2 

1.8 

3.2 

1.1

.4 

2.5 

1.8 

5.3 

1.8

1.8 

.0 

.0 

.0 

.0 

5.3 

10 

8.9

2.9

3.8

3.8

Fluorlde 

(F)

0.1 

.1 

.5 

.4 

.3

.2 

.3 

.3 

.2 

.2

.3 

.1 

.0 

.1 

.1 

0.3 

.3 

.3

0.2

0.3

0.3

Nitrat

(NO

0.

.

.

.

.

.

.

.

.

.

.

1.

.

.

.

0

0.

0.

0.

A Mean discharge based on 365 days; mean discharge for 300 days of chemical analyses, 479 cfs.
COLORADO RIVER BASIN

-

 P W

1

1V

tc

5c

s

 <

^

^

OJ

e

S

a,

<

ji 

?

£

February

t

3 

"-^

j2

i

1

V

> 

o

Z

b*

J8

o

?-> g

2SSES SESSS SSSEE KSEKK ESSSE ESSSK'

2SSS2 SSSES SSSSS SSSSS SSSS2 SSSSSS

rfrf ^ rfrf r-cvj^cvjro rororv,^^ (vj ro CM (vj CM ro (vj (vj <v, (vj CM

(<1 (NJ 00 i-* 0" ^-i ff1 | | *O ODfflfOi-Ji-J Chilli Illlt Itllll

------

'"" '"" °^ c° 2 22 °" """ """*""

air^-c^-' OOO^-NO 0*000^ Mh-ff-oooo ooCT-r-h-r- c^r-oi | i

ODff'C^CT'O a>Off*C^O C^OOOO OOQOO OOOOO OOOI 1 1

-< "-1 «- IH O OO^«-*-< (\j-iOOO OOOOO | | 1 | 1 1 | | ( | |

r^^r, r,^ -^rv.^^, rv, rv, rv, ~ ^, rv, r, r, N <v,

- rt - rt rf ^,roro(M cMro^rv.r. <M N 01 rg CM rg IM <vj <M N <vj <N CM CM r^

tvrgMMm T-J-O-CUU - o> * rg » rg o -. * T in o eo N -. m ro * ^ - rg

s

(VJ

!

1

*

0

1

1

rg

1

3
GREEN RIVER BASIN Continued

9-2050. NEW FORK RIVER NEAR BIG PINEY, WYO. 

____Temperature (°F) of water, water year October 1965^ t

November ..... 

December .....

April ..........

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

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

September .....

1

39 

33

59

2

38

3*

59

3

38 

34

63

4

38

33

65

5

33

65

6

39

33

63

7

38 

33

66

8

38 

33

65

9

38 

35

65

10

39 

3*

60

11

39

34

60

12

36 

33

62

13

36 

3*

59

14

37 

34

52

15

39 

33

50

Day

16

37 

33

52

17

38 

34

58

18

37 

34

62

19

37 

33

63

20

36 

33

63
GREEN RIVER BASIN Continued

9-2077. DRY PINEY CREEK NEAR BIG PINEY, W

LOCATION. Lat 42°23'25", long 110°15'09", at gaging station, 8.3 miles upstream fr

Piney, Sublette County.

DRAINAGE AREA. 67 square miles, approximately. 

RECORDS AVAILABLE. Water temperatures: April to September 1966.

Sediment records: April to September 1966. 

EXTREMES, April to September 1966. Water temperatures: Maximum, 74°F June 27, Aug

Sediment concentrations: Maximum daily, not determined; minimum daily, no flow S

Sediment loads: Maximum daily, 160 (estimated) tons Apr. 1; minimum daily, 0 ton

REMARKS. Flow affected by ice Apr. 19-21.

Temperature (°F) of water, April to Septembe

June ..........

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

August ........ 

September .....

I

71 

52

2

72 

5*

3

69 

49

4

71

5

60

6

65

7

64

8

65

9

69

10

74

1 1

61

12

62

13

55

14

60

15

59

Day

16

63

17

60

18 19 20 
QUALITY OF SURFACE WATERS, 1966

GREEN RIVER BASIN Continued 

9-2077. DRY PINEY CREEK NEAR BIG PINEY, WO. Continued

Suspended sediment, April to September 1966 

(Where no daily concentrations are reported, loads are stimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

APRIL MAY

discharge

(cfs)

26

19

10

Suspended sediment

Mean

(ppm)

Mean

Tons disper

 160

. 

120

60

8.7 50

8.4 

8.4

9.1

9.1

8.5

8.4

6.7

5.8

5.5

5.4

5.5

5.8

5.8

5.5

5.3

5.0

_

50

50

50

 50

 50

50

30

 20

15

15

charge

(cfs)

3.2

3.1

3.2

3.2

3.5

3.3

3.2

3.1

3.2

4.4

4.2

4.1

4.0

3.7

440 6.5 3.5

450 7.0 3.0

470 7.4

550 8.2

1000 14

1400 19

5.2 1200 17

5.4 580 8.5

4.8 470 .1

4.8 470 .1

4.4 460 .5

4.1 320 .5

3.6 610 S .9

3.6 660 .4

3.6 370 .6

2.8 300 .3

31. .| 

Total 214.2 898.0

JUl Y

1..

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..

Total

1.2

1.4

.74

 "

.,,

.35

.23

.23

.35

.35

.40

.45

.31

.23

.20

.27

.31

.27

.23

1.4

1.2

.45

.27

.20

 10

.04

 10

 08

.08

 02

12.75

110

100

87

22

67

33

16

17

17

33

62

16

16

17

21

21

15

16

1200

2500

270

110

70

70

40

100

65

60

35

0.4

.4

.2

.1

2.7

2.1

1.8

1.7

1.6

1.7

1.7

1.6

1.6

1.6

1.4

1.5

1.2

1.2

1.2

80.5

Suspended sediment

Mean T(ms

per tration *: (ppm) day

270

240

260

260

220

220

180

190

220

2.3

2.0

2.2

2.2

2.1

2.0

1.6

1.6

1.9

660 7.8

320 ' 3.6

260 2.9

280 ! 3.0

240 2.4

220

180

340

160

110

100

230

150

120

120

60

100

95

48

90

60

52

2.1

1.5

2.5

.9

.5

.5

1.0

.7

.6

.5

.3

 4

.4

.2

.3

.2

.2

50.4

AUGUST

0.02

.37

.35

.66

.1 .27

T .17

.1 .12

T .08

T || .06

T .03

T .01

T .01

.1 .01

T .01

T

T

.01

.01

T , .01

T .01

T | .01 T ; .01

S 26 .01

S 9.8 1! .01

.3

.1

T

T

T

T

T

T

T

37.9

.01

.02

.01

.01

.01

.01

.02

.03

.06

2.43

35 T

1700 S 5.6

160 .2

140

100

88

55

50

50

60

46

50

71

88

16

12

8

- 

 

25

12

11

11

16

10

10

35

8

10

11

.2

.1

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

6.2

JUNE

discharge

(cfs)

1.2

.91

.91

.99

1.2

.99

1.9

3.2

3.2

3.6

3.5

2,6

2.2

2.1

1.9

1.8

2.3

2.1

1.7

1.2

1.6

4.1

3.3

2.4

2.0

1.6

1.2

.99

.83

.83

--

58.35

Suspended sediment

Mean

(ppm"

68

65

Tons

per 

day

0.2

.2

21 .1

20 i .1

24

19

120

970

200

200

110

56

60

24

28

38

98

68

20

32

15

340

230

80

32

.1

.1

S .8

S 9.8

1.7

1.9

1.0

.4

.4

.1

.1

.2

S .8

.4

.1

.1

.1

S 4.0

2.0

.5

.2

18 .1

19 .1

18 T

24 .1

Tt .2

 

26.0

SEPTEMBER

0.12

.86

.17

.13

.10

.08

.06

.04

.03

.02

.02

.02

 93

.31

.23

.23

.12

.03

0

0

0

0

0

.07

.10

.10

.10

.08

.05

.03

4.03

12000

9500

62

61

47

40

35

21

S 5.4

S 27

T

T

T

T

T

10 T

19 T

12

15

1600

1400

T

T

S 12

S 1.6

210 .1

95 .1

66 T

45 T

 0

 0

 0

 0

 0

77 S .1

 T

24 | T

25 T

6 ' T

4 1 T

5 i T

46.4

....... 1064.9

S Computed by subdividing day. 

T Less than 0.05 ton.
GREEN RIVER BASIN Continued 

9-2077. DRY PINEY CREEK NEAR BIG PINEY, WYO. Conti

determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Sept. 14............

Time 

(24 hour)

1125 

1030 

1340 

0855 

0800

1530 

1930 

1720 

1810 

0725

Water 

temperature

(°F)

47 

45 

51 

34 

41

32 

56 

72 

60 

45

Sampling 

point

Discharge

(cfs)

D 3.0 

D 2.4 

3.1 

3.3 

1.8

D .85 

3.6 

1.2 

.1 

.2

Sediment 

concentration 

(ppm)

47 

27 

28 

64 

53

48 

2920 

8840 

12100 

1880

Sediment 

discharge 

(tons per day)

0.4 

.2 

.2 

.6 

.3

.2 

28 

29 

3 

1

Percen

0.002 0.004

"

69 

83 

86 

86

0.008 

D Daily mean discharge.
GREEN RIVER BASIN Continued

9-2094. GREEN RIVER NEAR LA BARGE, WYO.

LOCATION (revised). Lat 42°16'40", long 110°11'30", at footbridge in Sublette County, 0.7 mile north o

gaging station, and 9.5 miles upstream from Muddy Creek.

DRAINAGE AREA. 3,910 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1963 to September 1966.

Water temperatures: October 1963 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 358 ppm Mar. 31 to Apr. 3; minimum, 118 ppm May 20 to J

Hardness: Maximum, 211 ppm Nov. 26 to Dec. 4, minimum, 90 ppm May 20 to June 5.

Specific conductance: Maximum daily, 630 micromhos Apr. 1; minimum daily, 168 micromhos May 31.

Water temperatures: Maximum, 74°F July 19, 25, 27, Aug. 1; minimum, freezing point on many days duri

EXTREMES, 1963-66.--Dissolved solids: Maximum, 358 ppm Mar. 31 to Apr. 3, 1966; minimum, 118 ppm May 2

Hardness: Maximum, 224 ppm Nov. 16 to Dec. 15, 1964; minimum, 90 ppm May 20 to June 5, 1966.

Specific conductance: Maximum daily, 630 micromhos Apr. 1, 1966; minimum daily, 168 micromhos May 31

Water temperatures: Maximum, 74°F July 19, 25, 27, Aug. 1, 1966; minimum, freezing point on many day

Chemical analyses, in parts per million, water year October 1965 

Date

of 

collection

Oct. 1-15, 1965

Nov. 26-Dec. 4.

Dec. 30- 

Jan. 10, 1966

Mar. 31 -Apr. 3.

May 20- June 5..

June 21-30.....

Mean 

discharge 

(da)

1296 

1224 

1033 

1014 

734

738 

614

680 

628 

523

523 

630 

2600 

2370 

1309

1954 

3077 

2800 

2193 

2776

Silica 

(S102 )

7.3 

8.1 

8.6 

9.2 

12

9.8 

10

9.8 

9.7 

9.8

9.0 

9.5 

9.1 

8.9 

7.9

7.3 

5.9 

5.2 

7.2 

7.5

Iron 

(Fe)

Calcium 

(Ca)

41 

43 

46 

49 

53

53 

48

52 

46 

53

52 

50 

42 

43 

54

49 

35 

27 

44 

44

Magnesium 

(Mg)

12 

13 

12 

16 

19

17 

18

18 

20 

17

16 

16 

21 

18 

18

11 

7.5 

5.6 

2.1 

3.0

Sodium

(Na)

13 

15 

15 

17 

20

16 

17

15 

14 

14

14 

16 

40 

21 

19

12 

8.2 

7.2 

12 

13

Potassium 

(K)

1.3 

1.3 

1.4 

1.4 

1.6

1.4 

1.4

1.6 

1.4 

1.6

2.7 

2.6 

6.8 

4.2 

2.5

1.4 

1.3 

1.7 

1.6 

1.1

Bicarbonate 

(HCO,)

156 

164 

170 

186 

214

198 

196

194 

194 

184

179 

177 

190 

189 

211

171 

123 

93 

128 

137

Carbonate 

(CO,)

0 

0 

0 

0 

0

0

0

0 

0 

4

0 

0 

0 

0 

0

0

0 

0 

0 

0

Sulfate 

(SO,)

47 

50 

54 

56 

71

66 

68

67 

65 

68

78 

73 

102 

63 

66

51 

30 

25 

33 

31

Chloride 

(Cl)

3.2 

3.0 

2.9 

3.8 

4.8

3.7 

3.9

3.5 

3.2 

2.2

2.8 

5.3 

13 

6.4 

7.1

1.4

.0 

.7 

.7 

.4

Fluoride 

(F)

0.2 

.2 

.2 

.2 

.2

.2 

.2

.1 

.2 

.3

.3 

.1 

.6 

.6 

.3

.3 

.3 

.3 

.3 

.3

Nitrate 

(NO,)

0.0 

.0 

.1 

.1 

.0

.0 

.0

.1

.0

.1

.0 

.0 

3.3 

.0 

.0

.0 

.0 

.2 

.1 

.2

Bo

ro

(B

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.1

.1

.1

.0

.1

.1

.0

.1

.0
COLORADO RIVER BASIN

1 1

n rH oo

m ^ m rH o m

t~ to t~

rH CO 00 

CM rH

^< rH 00 

CO CM CO

rH rH rH

CM 00 ^

f no t> & &

oo to m CM CM CM

S

CO f 

00 rH 

CM rH CM

 * CO t~ 

O O O

0

COCO 0

CO CO CO

oo m

rH CO CM

rH

CO to 00 

CO ^ CO

CO O O

to <J3 to

m rH ^<

rH rH rH

01 O tr-t rH

oo m o

rH rH CM

rH

CO O <T3

rH rH

CO CM O

to m" to

oo co m ^< to 01

CO 00 tD 

r-t

to 01 

rH 

- O

rH rH CO

I 1 r4

rH rH

>» 4-» IH bo a

330) 1-3 < BO

!

t~

t~^<

CO

o

3

o 

m

rH

H 

Ol

00 

CM

O

rH 

rH

tO

o

o

o

to

^<

1

m

rH

00

rH

m

rH

rH 

rH

CM *

t~

1

Weighted 

average. .

|

ttt~

CO

m 

o

trH

1

i

CM 

CM

O 

O

rH 

O

O

^ 

 *

m

!

^<

rH

00

rH

to

rH

CO

rH

^< 

^<

Ol 

t~

H 

rH 

CM

rH

Time-weighted average. ...

i

i

1

1

i

j

i

i

i

CM 

O

O

O

CM

rH

trH

!

0

m

00

in

01 ^<

tto

CO

rH

Si

1

i o

h 

IV

a, 

m

I
GREEN RIVER BASIN Continued

9-2094. GREEN RIVER NEAR LA BARGE, WYO. Con

Specific conductance (mlcromhos at 25°C), water year October 

Day

1.....

3..... 

4.....

6.....

13.....

18.....

31.....

Average

October

332

325 

325

365

338

371

356

344

November

353

358 

351

359

385

3 89

388

408

398

December

445

437 

459

437

412

456

506

425

January

498

400 

401

402

421

428

421

417

February

435

427 

432

433

426

430

431

March

426

418 

427

420

415

419

517

424

April

630

480 

436

450

455

438

4B7

463

Ma

44

45

44

38

234

29

28

16

28
COLORADO RIVER BASIN

 S | E 

O2Q
GREEN RIVER BASIN Continued

9-2170. GREEN RIVER NEAR GREEN RIVER, WYO.

LOCATION. Lat 41°31' , long 109°27' , at bridge on State Highway 530, about 1 mile upstream from gagin

edge of town of Green River, sweetwater County, and 5 miles upstream from high waterline of Flamin

DRAINAGE AREA. 10,000 square miles, approximately, upstream from gaging station, of which 300 square 

RECORDS AVAILABLE. Chemical analyses: May 1951 to September 1966.

Water temperatures: May 1951 to September 1966.

Sediment records: May 1951 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 770 ppm Oct. 22, 23; minimum, 178 ppm June 1-7.

Hardness: Maximum, 362 ppm Oct. 22, 23; minimum, 118 ppm June 5-7.

Specific conductance: Maximum daily, 1,150 micromhos Oct. 23; minimum daily, 269 micromhos June 4.

Water temperatures: Maximum, 73°F on several days during July and August; minimum, freezing point 

Sediment concentrations: Maximum daily, 1,000 ppm Apr. 5; minimum daily, 4 ppm Nov. 5-7, July 18-2

Sediment loads: Maximum daily, 10,000 tons Apr. 5; minimum daily, 9 tons Oct. 22. 

EXTREMES, 1951-66. Dissolved solids: Maximum, 855 ppm Nov. 15-20, 1955; minimum, 156 ppm May 23-31, 

Hardness: Maximum, 420 ppm Nov. 15-20, 1955; minimum, 106 ppm May 23-31, 1958.

Specific conductance: Maximum daily, 1,240 micromhos Dec. 13, 1953, Nov. 19, 1955; minimum daily, 

Water temperatures: Maximum, 79°F July 8, 22, 1961, July 24, 1962; minimum, freezing point on many 

Sediment concentrations: Maximum daily, 15,000 ppm Aug. 11, 1963; minimum daily, 0 ppm Sept. 18, 1

Sediment loads: Maximum daily, 110,000 tons Mar. 28, 1962; minimum daily, 0 tons Sept. 18, 1962. 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, wate October 196

Date 

of 

collection

Oct. 1-15, 1965..

Jan. 1-Mar. 8, 

1966. ..........

Apr. 5-9.........

May 1-7. .........

Mean 

discharge

(eta)

1673 

1113 

594 

1268 

1267

479

614 

1813 

1475 

2312

4184 

2985 

2470 

1611 

1394

Silica 

(SiOa)

5. 9 

6. 2 

5. 6 

7.1 

8.4

8.8

9.2 

8.5 

8.0 

7.7

8. 0 

7.4 

7.3 

6.6 

5.8

Iron 

(Fe)

Calcium 

(Ca)

62 

66 

76 

64 

66

84

77 

71 

63 

57

48 

46 

48 

57 

62

Magnesium 

(Mg)

35 

33 

42 

30 

25

34

31 

24 

21 

22

20 

21 

21 

26 

24

Sodium 

(Na)

63 

62 

90 

69 

56

88

70 

72 

58 

31

40 

35 

37 

38 

52

Potassium 

(K)

Bicarbonate 

(HCO,)

188 

185 

192 

184 

190

238

236 

188 

166

178

176 

175 

180 

198 

210

Carbonate 

(COJ

0 

0 

0 

0 

0

0

0 

0 

5 

0

0 

0 

0 

0 

0

Sulfate 

(S0<)

240 

244 

349 

247 

204

309

244 

249 

204 

137

126 

118 

123 

149 

173

Chloride

(CD

22 

22 

26 

20 

16

18

17 

14 

10 

9.4

9.3 

9.1 

9.4 

10 

10

Fluorlde

(F)

Nitrat

(NO
May 8-9, 1966.. . .

June 8-15. .......

Sept. 1-30. ......

Weighted average

Time- weighted 

average. .....

Tons per day. . .

1955 

4547

2487

1860

2626

3855

1349

754

1397

--

5.7 

8.3

5. 6

6. 1

5. 5

7. 8

13

7.2

7.7

27

59 

55

38

44

37

46

51

54

60

203

25

17

23

22

25

82

46

32

62

46

56

173

212 

196

123

147

156

152

173

187

652

0

0

-

158

57

208

161

194

606

9. 8

4 3

12

11

13

41

Analyses of additional samples (instantaneous discha

Mar. 23, 1966....

Aug. 9...........

Sept. 20. ........

2100 

3960

862

8.2 

4.6

2.9

2.4

69

27

44

53

26 

14

20

19

64

15

44

58

1.6 

.4

2.0

1.9

196 

117

153

150

0 

0

0

0

240 

57

140

203

12 

4.3

9.0

12

0.5 

.3

.5

.6

1.2

.2

.4

.2

A Residue at 180°C.
QUALITY OF SURFACE WATERS, 1966

***** *****

iio. I|-«I|I
COLORADO RIVER BASIN

dzd
QUALITY OF SURFACE WATERS, 1966

GREEN RIVER BASIN--Continued 

9-2170. GREEN RIVER NEAR GREEN RIVER, WYO. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

OCTOBER

Suspended sediment

Mean ~ 7 

dig_ Mean

charge

(cfs)

1.. 2340

2..

3..

2040

1910

4.. i 1850

concentration 

(ppm)

24

21

19

17

per 

day

150

120

98

85

5.. , 1710 18 83

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

1640 9 40

1620

1600

1590

1570

1540

1540

1510

1360

1280

1310

1280

1270

1260

9 39

11 , 48

NOVEMBER

Mean

discharge

(cfs)

1370

1390

1460

1410

Suspended sediment

 i

Mean y

7papt" ^

6 !

6 23

6

5

1480 4

1540

1530

1490

10 43 1460

8 34

8 33

8 33

8 33

8 29

19 66

29 100

17 59

7 24

6 20

20.. ' 1030 I 8 22

21.. 527 10 14

22.. < 416

23.. ! 772

24..

25..

999

981

26.. 1140

27.. 1240

8 9

6 13

6 16

5 13

6 18

9 30

28.. 1 1450 10 39

29.. 1480 8 32

30.. 1440 9 35

31..

Total

1 . 

?..

3..

4..

5..

6..

7..

8«.

9..

10..

11..

12..

13..

14..

1410 8 30

1490

1500

1490

1460

1420

1400

1300

4

4

5

8

7

6

7

7

6

7

24

19

16

17

17

20

32

28

24

28

28

23

DECEMBER

Mean

discharge

(cfs)

700

600

620

560

520

500

460

450

450

480

540

500

470

420

26 400

16 56 390

1260 41 140 380

1210 74

1220 96

1200

1160

1140

1120

1100

1020

98

88

240 390

320 410

320 440

280 470

78 240 450

71 210

70 210

72

980 73

940

870

840

760

43105 1408 38010

73

74

74

70

200

190

480

460

450

460

190 480

170 490

170 480

140 470

 470

 i 3423 14840

JANUARY | FEBRUARY |

460 ' 47 58 | 640 ' 60 ' 540

460 48

480

500

5?0

520

580

640

620

48

47

43

37

60 " 640 i 60 540

62 , 640 60 540

63

60

52

34 53

35 60

39 65

600 43 70

6?0

680

680

680

15.. 720

16..

17..

18..

19..

20..

21..

22..

23..

74..

25..

26..

27..

28..

29..

30..

31..

Total

710

47

50

53

79

92

97

52 95

46 89

37 71

640

640

660

660

660

660

680

700

680

60 560

60 570

80

80

580

600

80 620

80 640

100 700

100

700

700

700

700

700 29 55 680

680 73 42 660

660 20 : 36

640

600

20 35

21 34

580 26 41

560 33

580

580

600

620

640

630

640

640

18870

40

44

43

50

63

69

70

39 65

36 62

_ -

-

60

60

60

1928

640

620

100

100

100

100

100

100

80

600

60

50

800

1000

1200

1400

1600

1800

Z120

3050

3190

2900

40 2610

580 30 ' 2320

580 30 1990

560 20 1890

540

540

540

540

__

17780

20 1610

20

20

20

1810

1350

1290

1320

1510

1740

1640

44220

Suspended sediment

[- T

Mean

concentration 

(ppm)

59

44

32

28

26

24

22

22

22

23

29

37

46

per 

day

110

71

54

42

37

32

27

27

27

30

42

50

58

50 57

45 49

35 37

28 i 29

26 27

27 30

28 33

30 38

30

31

31

30

28

26

36

40

39

36

35

34

27 36

32 41

39 49

33 1 42

 1295

MARCH

 20

 20

 20

 i 20

 20

 30

 40

 50

60

100

230

240

500

650

260 840

270 1000

250 1100

210 1000

170 970

140 1200

120 1000

120 940

130 920

140 880

140 750

130 660

120 . 520

170 620

270 940

310 1100

320 1300

410

570

-

1900

2500

21670
COLORADO RIVER BASIN

GREEN RIVER BASIN--Continueci

9-2170. GREEN RIVER NEAR GREEN RIVER, WYO. Centinued 

Suspended sediment, water year October 1965 to September 1966 Continued

Uay

1..

?..

3..

4..

5».

6>.

7».

8..

0,.

10..

11..

12..

13..

1*..

15..

16..

17..

1ft..

19..

70..

71..

22..

23..

24..

25..

76..

77..

28..

29..

30..

31..

APRIL MAY !

Suspended sediment Suspended sediment

Mean

dis- Mean ! _

fharoe cnarge concen- per

(cf» ^ppm^ **

1910

7*30

710 3700

720 4700

75*0 5<»0 4000

Mean

1 discharge 

(cfs)

,

1*70

1380

1290

2370 *30 2800 12*0

3840 1000 10000 1280

**<»0 710 8600 1*10

4*00 520 6200

3980

*710

3510

2*60

2510

2530

2370

1780

360 3900

1690

1750

180 ' 2000 2160

110 1000 3*60

82 5*0

77 520

69 470

4920

5260

58*0

54 350 5550

42 200 *5*0

1500 36 150

 - - - - 

Mean ! _

concentration 

(ppm)

35

31

21

17

per

day

1*0

120

73

Mean

discharge

(cfs)

3860

*370

**70

57 j **20

17 59 38*0

21

30

36

100

230

270

2*0

80 3370

1*0

170

580

2100

3600

3*00

2530

2*20

2*50

25*0

2670

2790

230 3600 2690

180

100

2700 2790

1200 , 2660

'

3510 70 660 2260

1470 32 120 2760 60 *50 19*0

1*50 36 1*0 i, 2530

1480 41 160 1 2170

16*0 41 180 1820

52 360 1800

** 260 17*0

3*

70*0 41 230 1910 32

1980

1740

1570

40 210

78 370

120 510

1*80

16*0

1650

32

28

170 17*0

170 1750

130 18*0

120

31 1*0

2200

2790

1*70 81 320 1610 *6 200 3750

1*80 ! 40 160 , 2*00 56

1490 35 1*0 2370

360 3750

53 3*0 A170

1550 27 110 2370 50 320 3750

1600 72 95 2280 6* 390 25*0

1590 77 120 , 3220 90 780 2280

 |l 3730 96 970

Total 69330 51995 80690 ( 23839 86170

JUNE

Suspended sediment

Mean

concentration 

(ppm)

88

91

9*

per

day

920

1100

1100

78 930

56 | 580

46

40

3*

30

26

27

30

3*

36

420

270

220

200

180

190

230

250

270

3* 2*0

1

2* ' 150

17 89

15 73

12

1*

16

20

40

65

69

56

66

76

99

2*0

*90

700

52 530

43 480

35 350

21 1*0

1* I 86

__

 ' 10725

JULY AUGUST SEPTEMBER

1..

?..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

1960 13 69 1180 6 19

1870 1* 71 1160 7

1880 16 81 1270 5*

708

22 679

190 661

1870 '12 61 I 1300 140 *90 ; 6*8

1970 9 *7 11*0 150 , *60 672

mo

1850

9 *6

9 *5

16*0 10 **

1090

1060

85 ! 250

52 150

73*

803

1120 58 180 786

15*0 12 50 1220 58 190 767

1*90

1*60

13 52 1260

10 39 1210

62 1*0

29 95

786

762

1330 8 29 1080 22 6* 729

1250 6 20 960 16 *1 716

1340 , 22 893 13

1360 18 862 11

31 711

26 : 73*

46 88

82 150

60 110

31 5*

*7 85

72

60

35

140

130

7*

26 5*

20

17

42

35

17 33

15 29

21 *0

58 , 110

13.. 

1*..

15..

16..

17..

18..

19..

20..

21..

22..

73..

74..

25..

26..

27..

28..

29..

30..

31..

To^aT1

1250 

1340

1360

1390

1*50

1*00

1260

1190

1230

1360

1380

1390

1*70

1380

17SO

1270

1180

1210

1220

 _____

45630

6

1

6

6

20 

22

18

23

20

15

1*

13

17

26

30

3*

35

37

31

20

16

20

20

1065

960 

893

862

8*0

79?

75*

772

761

733

718

732

756

7*7

7*3

69*

650

636

6*3

671

28**7

16 

13

11

10

10

10

12

1*

1*

10

9

10

10

8

7

8

18

30

2*

~

41

31

26

23

21

20

25

29

28

19

18

20

20

16

13

1*

31

52

*3

27*0

lib 

711

73*

727

82*

837

799

815

865

851

810

776

775

810

771

727

68*

66*

22631

15

21

58

86

60

28

20

20

19

1*

11

13

16

27

40

33

18

15

-

tv

*0

110

170

130

63

*3

**

*4

32

24

27

33

59

83

65

33

27

2051

Total discharge for year 

Total load for year (ton

(cfs-days), 509,673

123,949
GREEN RIVER BASIN Continued 

9-2170. GREEN RIVER NEAR GREEN RIVER, WYO. Co

Periodic determinations of suspended-sediment discharge and particle-size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Oct. 21, 1965. ....

Sept. 20. .........

Time 

(24 hour)

1620 

1000 

1220 

1600 

1630 

1705

Water 

temperature 

(°F)

50 

38 

37 

63 

71 

67

Sampling 

point

Discharge

(cfs)

520 

1740 

2420 

3960 

1300 

862

Sediment 

concentration 

(ppm)

14 

774 

771 

82 

64 

20

Sediment 

discharge 

(tons per day)

20 

3640 

5040 

877 

225 

47

Perc

0.002

67 

55

0.004

86 

68

0.00
GREEN RIVER BASIN Continued

9-2220. BLACKS FORK NEAR LYMAN, WYO.

LOCATION. Lat 41°27' , long 110°10' , at gaging station at bridge on old U.S. Highway SOS. , 7 miles down

Lyman, Uinta County. 

DRAINAGE AREA. 821 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1962 to September 1966.

Water temperatures: May 1962 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 3,140 ppm Aug. 15-31; minimum, 325 ppm May 4-8.

Hardness: Maximum, 1,060 ppm Aug. 15-31; minimum, 156 ppm May 9-10.

Specific conductance: Maximum daily, 3,940 micromhos Aug. 29; minimum daily, 450 micromhos May 9.

Water temperatures: Maximum, 78°F July 5, 7; minimum, freezing point on many days during winter mont

EXTREMES, 1962-66. Dissolved solids: Maximum, 4,000 ppm Jan. 13-30, 1963; minimum, 279 ppm May 24-29, 

Hardness: Maximum, 1,580 ppm Jan. 13-30, 1963; minimum, 144 ppm Sept. 1, 1963.

Specific conductance: Maximum daily, 5,140 micromhos Jan. 26, 1963; minimum daily, 399 micromhos May 

Water temperatures: Maximum, 78°F July 5, 7, 1966; minimum, freezing point on many days during winte

REMARKS. Additional samples were collected to further define the quality of water at this station. Ma

Sept. 20, 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-15, 1965. .

Jan. 1-31, 1966. .

May 1-3. .........

May 14-17. .......

Mean 

discharge

(cfs)

185 

360 

190 

141 

130

136 

106 

111 

99. 0 

90. 6

91. 1 

344 

259 

203 

261

267 

509 

724 

514 

212

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

108 

249 

132 

158 

160

112 

149 

98 

91 

106

95 

142 

105 

69 

70

50 

35 

42 

60 

88

Potassium 

(K)

Bicarbonate 

(HCO,)

191 

215 

214 

234 

270

224 

273 

328 

222 

218

218 

210 

228 

210 

194

159 

149 

146 

162 

182

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04)

387 

586 

402 

484 

484

344 

460 

313 

293 

302

293 

335 

236 

183 

170

134 

91 

91 

134 

224

Chloride 

(Cl)

44 

105 

63 

70 

73

49 

67 

44 

38 

37

36 

66 

54 

42 

41

27 

20 

23 

33 

46

Fluorlde 

(F)

Nitrate 

(NOJ
GREEN RIVER BASIN Continued

9-2220. BLACKS FORK NEAR LYMAN, WYO. Contin

Chemical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

May 18-21, 1966. .

Sept 27-30. ......

Weighted average

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge

(cfs)

91. 2 

74.8 

79.3 

70. 4 

27.8 

31.7 

5.5 

7.4 

11. 9

127

Silica 

(S102)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

131 

212 

303 

364 

415 

498 

660 

556 

446

129

232

44

Potassium 

(K)

Bicarbonate 

(HCOJ

213 

288 

308 

314 

244 

224 

140 

172 

208

215

224

74

Carbonate

(ccg

0 

0 

0 

0 

0 

0 

0 

0 

0

-

__

Sulfate 

(S0«)

360 

549 

717 

907 

1330 

1500 

2120 

1790 

1400

360

695

123

Chloride 

(Cl)

68 

102 

116 

132 

126 

112 

123 

116 

94

55

74

19

Fluoride 

(F)

Ni

trat

(NO

Analyses of additional samples (instantaneous disch

Mar. 22, 1966....

Sept. 20. ........

290 

90

5.3

14 

13

6.4

78

269

28

112

113

494

3.2

4.8

234

190

166

0

0

258

1830

66

123

0.6 

1 2

1.4

0.5

3

.6
GREEN RIVER BASIN Continued

9-2220. BLACKS FORK NEAR LYMAN, WYO. Conti

pacific conductance (micromhos at 25°C), water year October 

Day

31.....

Average

October

1190

1200

November

1410

December

980

1140

January

897

973

February

958

921

March

964

814

1040

April

807

835

792

Ma

172

10
QUALITY OF SURFACE WATERS, 1966

OZQ ,111 £:
GREEN RIVER BASIN Continued

9-2244.5. HAMS FORK NEAR GRANGER, WYO. 

(Formerly published as station number 9-2245.5.

LOCATION (revised). Lat 41°35'56", long 109°59'28", at Union Pacific Railroad bridge, 1.2 miles northw

upstream from mouth.

DRAINAGE AREA. 670 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: July 1965 to September 1966.

Chemical anal

Date 

of 

collection

June 8. ...........

Sept. 8...........

Discharge 

(cfs)

31 

43 

31 

31 

.6

160 

251 

224 

31 

17 

4.2

Silica 

(SiO,)

1.6 

5.3 

4.8 

5.0 

3.7

7.6 

6.2 

7.1 

5.5 

12 

1.2

Iron

(Fe)

0.17 

.05 

.13 

.08 

.09

.50 

.08 

.19 

.05 

.06 

.06

Calcium 

(Ca)

61 

101 

95 

90 

96

64 

56 

55 

65 

73 

42

Magnesium 

(Mg)

29 

30 

26 

30 

24

14 

21 

29 

47 

34 

33

irses, in parts per million, water year October 1965 

Sodium 

(Na)

40 

51 

35 

35 

33

17 

17 

33 

84 

71 

59

Potassium 

(K)

2.4 

2.9 

2.1 

2.2 

2.6

4.0 

2.5 

1.5 

1.9 

2.0 

2.8

Bicarbonate

(Hccg

219 

276 

271 

256 

264

207 

226 

250 

306 

270 

167

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO.)

149 

215 

153 

173 

164

71 

72 

115 

264 

217 

191

Chloride 

(Cl)

23 

30 

21 

20 

18

7.8 

5.7 

11 

23 

21 

23

Fluoride 

(F)

0.4 

.5 

.4 

.4 

.4

.4 

.2 

.4 

.6 

.6 

.5

Nitrate 

(NO,)

0.0

.1

.2 

.1 

.2

.0 

.4 

.0 

.1 

.1 

.0
GREEN RIVER BASIN Continued

9-2247. BLACKS FORK NEAR LITTLE AMERICA, WYO

LOCATION. Lat 41°32'46", long 109°41'34", at gaging station 200 feet upstream from bridg

east of Little America, Sweetwater County. 

DRAINAGE AREA. 3,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1965.

Water temperatures: March 1951 to September 1962, December 1964 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,920 ppm Sept. 22-30; minimum, 330 ppm Dec. 6-8.

Hardness: Maximum, 660 ppm July 1-31; minimum, 174 ppm Mar. 11-15.

Specific conductance: Maximum daily, 2,850 micromhos Sept. 20; minimum daily, 503 micromhos Dec. 7

EXTREMES, 1951-66. Dissolved solids: Maximum, 4,480 ppm Oct. 1-3, 1953; minimum, 278 ppm Feb. 12, 1

Hardness: Maximum, 1,980 ppm Feb. 1-14, 1955; minimum, 48 ppm Jan. 21, 22, 26, 1953.

Specific conductance: Maximum daily (1951-64, 1965-66), 6,010 micromhos Oct. 1, 1953; minimum dail

U.S. Hi

REMARKS. Additional samples were collected to further define the quality of water 

2,030 ppm Sept. 20, 1966; specific conductance, 2,890 micromhos Sept. 20, 1966.

at this station. 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-15, 1965. .

Jan. 1-31, 1966. .

Mar. 11-15.......

Mean 

discharge 

(cfs)

258 

309 

221 

180 

186

180 

151 

138 

135 

140

142 

122 

101 

108 

570

Silica 

(S102)

9. 6 

12 

9. 9 

10 

7. 9

6. 9 

10 

11 

11 

13

11 

10 

8.3 

8. 2 

9. 0

Iron 

(Fe)

Calcium 

(Ca)

59 

95 

93 

109 

84

56 

103 

59 

101 

122

106 

90 

45 

70 

50

Magnesium 

(Mg)

46 

38 

41 

38 

34

10 

36 

18 

34 

41

34 

32 

51 

26 

12

Sodium

(Na)

96 

171 

124 

149 

106

36 

116 

60 

102 

216

108 

117 

103 

120 

83

Potassium

(K)

Bicarbonate 

(HCO,)

197 

218 

222 

251 

205

103 

268 

126 

269 

377

280 

286 

263 

278 

184

Carbonate 

(CO,)

4 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04)

307 

453 

381 

426 

322

147 

338 

195 

309 

488

318 

293 

264 

240 

155

Chloride 

(Cl)

40 

81 

64 

73 

55

17 

63 

31 

51 

89

56 

50 

40 

44 

29

Fluorlde 

(F)

Nitrate 

(NO
Bar. 16, 1966. . . . 

Har 17

Bar. 18. .........

Bar. 26-28.......

Hay 1-4. .........

Hay 16-18. .......

Sept. 1-13.......

Sept. 22-30. .....

Weighted average

Time-weighted 

average. .....

Tons per day. . .

1000

912

762

114

34.0

9.8

10. 3 "

268

7.8

7.8

8.7

7.9

8.8

5.1

11

6.2

7.9

7.8

7.2

4.1

3.8

14

1.4

.6

9.0

8.0

6.5

55

53

54

43

51

50

55

74

84

94

98

48

66

56

66

77

48

18

17

21

21

60

85

59

53

65

28

41

20

91

85

86

68

67

44

276

307

448

374

495

90

170

65

186

206

188

216

244

206

228

244

165

00840080

10-_

188

179

165

126

118

109

160

576

909

1050

219

419

158

44

45

48

32

28

24

112

114

95

107

134

130

144

43

66

31
GREEN RIVER BASIN Continued

9-2247. BLACKS FORK NEAR LITTLE AMERICA, WYO. Contin

Analyses of additional samples (instantaneous discharges 

Date 

of 

collection

Mar. 22, 1966.....

Sept. 20. .........

Mean 

discharge

(Cf8)

900 

307 

49 

14

Silica 

(S102)

8.5 

7.6 

13 

2.3

Iron 

(Fe)

Calcium 

(Ca)

53 

79 

88 

21

Magnesium 

(Mg)

22 

30 

21 

63

Sodium

(Na)

102 

80 

260 

570

Potassium 

(K)

4.3 

1.8 

7.2 

5.8

Blcarbonate 

(HCO,)

214 

258 

203 

290

Carbonate

(CO,)

7 

4 

0 

53

Sulfate 

(SO*)

187 

204 

568 

1020

Chloride

(Cl)

55 

40 

80 

165

Fluorlde 

(F)

0.5 

.7 

.9 

.8

Nitrat

(NO

0.6 

.3 

.4 

.3

A Calculated from determined constituents.
GREEN RIVER BASIN Continued

9-2247. BLACKS FORK NEAR LITTLE AMERICA, WYO

Specific conductance (micromhos at 25°C), water year Octob

Day

1.....

13.....

Average

October November

1310

1370

13*0

December January

-

1020

1090

February

1080

961

983

March

981

QP1

984

665

808

April

581

657

M
GREEN RIVER BASIN Continued

9-2247. BLACKS FORK NEAR LITTLE AMERICA, WYO. Con

Temperature (°F) of water, water year October 1965 to 

October

December .....

February. ......

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

August ........ 

September .....

1

33

--

2

32

75

3

3?

3?

4

32

32

67

5

66

6

32

33

69

7

32

33

69

8

33

69

9

33

32

69

10

32

69

11

33

72

12

32

33

72

13

33

70

14

33

32

70 

67

15

32

33

72 

68

Day

16

32

33

72

17

32

32

73

18

32

70

19

32

32

71

20

32
GREEN RIVER BASIN Continued 

9-2295. HENRYS FORK AT LINWOOD, UTAH

LOCATION. Lat 41°32'46", long 109°41'34", approximately 1 mile downstream from gaging station, 0.4 m

Wyo., 2 miles upstream from State Highway 530 at Linwood, 4 miles northeast of Manila, and 7 miles 

DRAINAGE AREA. 520 square miles upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1966.

Water temperatures: March 1951 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,260 ppm Aug. 5, 6; minimum, 312 ppm May 8, 11.

Hardness: Maximum, 764 ppm Aug. 5, 6; minimum, 212 ppm May 8-11.

Specific conductance: Maximum daily, 1,670 micromhos Aug. 1; minimum daily, 414 micromhos May 9.

Water temperatures: Maximum, 75°F July 7, Aug. 10, 11; minimum, freezing point on several days dur

EXTREMES, 1951-66. Dissolved solids: Maximum, 3,700 ppm Oct. 14, 15, 1961; minimum, 309 ppm May 27-2

Hardness: Maximum, 2,100 ppm Oct. 14, 15, 1961; minimum, 201 ppm May 27-29, 1964.

Specific conductance: Maximum daily, 3,750 micromhos Oct. 15, 1961; minimum daily, 395 micromhos Ma

Water temperatures: Maximum, 81°F Aug. 6, 1960; minimum, freezing point on many days during winter 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-17, 1965. .

Jan. 1-3, 1966. . .

Feb. 1-14. .......

Apr. 1-12. ....... 

Apr. 13. ......... 

Apr. 14-30. ......

Mean 

discharge

(cfs)

136 

198 

126 

97. 1 

89.4

70.8 

69.8 

54.7 

62.9 

64.0

56.2 

60.6 

58.0 

54.7 

58.7

74.6 

79.5 

65.0 

75.6 

65.5

Silica

Si02)

15 

23 

15 

16 

15

17 

15 

18 

14 

25

14 

18 

14 

23 

14

14 

11 

23 

16 

13

Iron 

(Fe)

Calcium 

(Ca)

106 

176 

108 

119 

107

129 

118 

124 

101 

158

108 

130 

104 

130 

110

102 

92 

169 

107 

96

Magnesium 

(Mg)

52 

41 

52 

57 

55

66 

60 

67 

56

81

57 

67 

58 

71 

63

50 

48 

68 

51 

61

Sodium 

(Na)

32 

65 

50 

51 

45

60 

46 

38 

40 

51

44 

67 

39 

39 

37

45 

45 

59 

50 

47

Potassium 

(K)

Bicarbonate 

(HCOJ

223 

216 

217 

252 

245

280 

257 

267 

212 

364

213 

281 

204 

285 

233

228 

224 

352 

259 

232

Carbonate

(ccg

0 

0 

6 

0 

0

0 

0 

0 

0 

0

7 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

325 

495 

363 

393 

349

445 

384 

403 

356 

492

368 

464 

372 

418 

379

327 

299 

490 

329 

356

Chloride 

(Cl)

18 

42 

19 

20 

19

23 

22 

22 

20 

21

22 

22 

22 

22 

21

20 

20 

21 

22 

22

Fluoride 

(F)

Nitrate

(NOJ
Chemical analyse

GREEN RIVER BASIN Continued

9-2295. HENRYS FORK AT LINWOOD, UTAH Continu

in parts per million, water year October 1965 to 

Date 

of 

collection

May 3-7 1 966. . . .

Sept. 15-30. .....

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge

(cfs)

140 

341 

223 

136 

111

83.0 

54. 5 

38.1 

38. 6 

36. 5

9.7 

14. 0 

104 

15.2 

36.0

12.4 

29.0 

206 

83.0 

42.0

17.2 

7.3 

9.6 

14.1 

23.0

69.0

~

Silica 

(810,)

7.3 

5.4 

27 

13 

30

14 

13 

18 

19 

17

16 

19 

21 

18 

20

20 

22 

32 

22 

22

23 

24 

21 

22 

22

15

17

2.8

Iron 

(Fe)

Calcium 

(Ca)

58 

48 

158 

70 

132

71 

73 

95 

122 

104

136 

128 

88 

124 

112

124 

164 

107 

149

91

125 

149 

133 

151 

136

104

113

19

Magnesium 

(Mg)

36 

22 

85 

34 

83

38 

41 

51 

68 

52

81 

98 

41 

95 

56

97 

76 

39 

95 

66

86 

89 

70 

84 

78

53

62

9.9

Sodium 

(Na)

27 

19 

66 

28 

71

31 

37 

59 

58 

44

74 

73 

40 

74 

52

75 

86 

100 

88 

64

77 

85 

72 

83 

71

46

53

8.6

Potassium 

(K)

Bicarbonate 

(HCO,)

198 

127 

362 

175 

346

185 

188 

228 

284 

248

290 

314 

250 

296 

262

292 

272 

354 

272 

218

262 

284 

272 

272 

256

232

246

43

Carbonate

(ccg

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

_

~

Sulfate 

(S04 )

165 

131 

530 

206

485

221 

244 

343 

430 

325

537 

566 

236 

558 

363

568 

621 

318 

662 

414

555 

627 

496 

612 

537

346

402

64

Chloride 

(Cl)

14 

8.6 

28 

12 

25

13 

16 

22 

21 

18

27 

26 

17 

27 

22

28 

26 

17 

30 

21

27 

28 

24 

28 

26

19

22

3.6

Fluoride

(F)

Nitrate 

(NO,)

Analyses of additional samples (instantaneous discharges 

Nov. 22, 1965. . . .

Mar. 22, 1966....

July 6.. .........

61

60

18

18

17

15

126

107

120

66

51

67

43

45

56

6.6

6.9

9.3

270

258

270

0

0

0

411

318

295

235

422

21

24

22

22

0.6

.6

.6

0.1

.4

.1
GREEN RIVER BASIN Continued

9-2295. HENRYS FORK AT LINWOOD, UTAH Cont

Specific conductance (micromhos at 25°C), water year October 

Day

Average

October

998

November

1090

December

1090

January

1100

February

1040

March

975

April

979

Ma

70
QUALITY OF SURFACE WATERS, 1966
GREEN RIVER BASIN Continued

9-2345. GREEN RIVER NEAR GREENDALE, UTAH 

(Irrigation network station)

LOCATION. Lat 40°54'30", long 109°25'20", at gaging station, 0.5 mile downstream from Flaming Gorge 

Greendale, Daggett County, and 13 miles southeast of Linwood. 

DRAINAGE AREA. 15,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1956 to September 1966.

Water temperatures: October 1956 to September 1959, October 1963 to September 1966.

Sediment records: October 1956 to September 1959. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 578 ppm Apr. 1-30; minimum, 471 ppra Jan. 1-31.

Hardness: Maximum, 314 ppm June 1-30; minimum, 242 ppm Dec. 1-31.

Specific conductance: Maximum daily, 927 micromhos Oct. 7; minimum daily, 676 micromhos Feb. 7.

Water temperatures: Maximum, 55°F Nov. 14, 15; minimum, 33°F Mar. 28. 

EXTREMES, 1956-66. Dissolved solids (1956-58, 1959-66): Maximum, 866 ppm Mar. 18-23, 1961; minimum, 

Hardness (1956-58, 1959-66): Maximum, 424 ppm Dec. 1-9, 1960; minimum, 145 ppm June 1-30, 1961.

Specific conductance (1956-58, 1959-66): Maximum daily, 1,340 micromhos Aug. 30, 1961; minimum dai

Water temperatures (1956-59, 1963-66): Maximum (1956-59, 1963-64), 75*F Jan. 24, 25, 1959; minimum

RKMARKS. --Additional samples were collected to further define the quality of water at this station. 

580 ppm Apr. 8, 1966.

Chemical analys in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-31, 1965. .

Jan. 1-31, 1966. .

Sept. 1-30. ......

Weighted average

Time-weighted

Tons per day. . .

Mean 

discharge

(cfs)

1279 

2024 

1881 

1164 

1293 

1152

2171 

1352 

1590 

1692 

1921 

2078

-

1632

Silica 

(Si02)

7.3 

5.7 

6.9 

7.3 

7.0

7.8 

7.8 

7.5 

6.5 

6.8 

2.1

6.5

6.6

29

Iron 

(Fe)

Calcium 

(Ca)

69 

67 

61 

61 

63 

75

73 

75 

71 

87 

71 

69

70

70

310

Magnesium 

(Mg)

28 

23 

22 

25 

25 

26

32 

30 

33 

21 

25 

32

27

27

119

Sodium 

(Na)

82 

75 

62 

55 

58 

60

64 

54 

63 

59 

64 

59

63

63

279

Potassium 

(K)

Bicarbonate 

(HCOj)

182 

183 

172 

174 

172 

182

188 

186 

172 

184 

184 

184

181

180

797

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

8 

0 

0 

0

~

-

Sulfate 

(S04 )

259 

226 

197 

198 

209 

238

255 

236 

255 

241 

232 

241

233

232

1030

Chloride 

(Cl)

34 

28 

22 

20 

21 

20

22 

21 

22 

21 

19 

22

23

23

100

Fluoride 

(F)

Nitrat

(NO
GREEN RIVER BASIN Continued

9-2345. GREEN RIVER NEAR GREENDALE, UTAH Conti

Analyses of additional samples

Date

of 

collectlo i

Nov. 23, 1965.... 

Apr. 8, 1966.....

July 5 ...........

Mean 

discharge

(cfs)

2770 

3890 

1290

Silica 

(Si02)

6.2 

6.5 

5.9

Iron 

(Fe)

Calcium 

(Ca)

63 

75 

71

Magnesium 

(Mg)

23 

29 

31

Sodium 

(Na)

63

67 

57

Potassium 

(K)

3.1 

4.3 

2.8

Bicarbonate 

(HCO$)

174 

189 

184

Carbonate 

(CO,)

0 

0 

0

Sulfate 

(SO,)

214 

252 

228

Chloride 

(Cl)

24 

22 

18

Fluoride

(F)

0.3 

.4 

.4

Nitrate 

(NO

3.

11

7.

Temperature (°F) of water, water year October 1965 to Se

November .....

December .....

T

February. ......

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

August........

1

54

51

4?

40

41

2

54

51

4?

40

41

3

5*

51

41

40

4?

4

54

51

4?

40

4?

5

54

50

4?

40

4?

6

54

50

4?

40

41

7

51

50

40

41

8

51

50

41

41

4?

9

50

41

40

10

54

51

41

41

11

54

51

41

41

12

54

51

41

41

13

51

41

40

14

55

50

40

40

15

55

49

40

41

Day

16

54

49

40

41

17

49

40

41

18

51

49

40

41

19

51

49

40

41

20

51

48

40

41

21

51

48

40

1
GREEN RIVER BASIN Continued

9-2345. GREEN RIVER NEAR GREENDALE, UTAH C

Specific conductance (micromhos at 25°C), water year Octob

Day

6.....

28.....

Average

October

870

872

852

845

857

852

84 1

850

886 

884

887

889

866

November

839

768

719

693

777

December

701

708

711

702

January

712

709

701

710

February

705

7 08

736

717

714

March

762

825

827

854 

851

855

797

April

831

833

B32

830

830

838

Ma

83

 

82

82

80

83
GREEN RIVER BASIN Continued

9-2510. YAMPA RIVER NEAR MAYBELL, COLO.

LOCATION. Lat 40°32'20", long 108°05'18", at county bridge, 1 mile north of Maybell, Moffat County, 

DRAINAGE AREA. 3,410 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: November 1950 to September 1966.

Water temperatures: November 1950 to September 1966.

Sediment records: December 1950 to May 1958. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 477 ppm June 23-30; minimum, 74 ppm May 26.

Hardness: Maximum, 252 ppm Sept. 1-11; minimum, 50 ppm May 26.

Specific conductance: Maximum daily, 871 micromhos June 24; minimum daily, 130 micromhos Apr. 11-1

Water temperatures: Maximum, 75°F Aug. 17, 24; minimum, freezing point on many days during Decembe

EXTREMES, 1950-66.--Dissolved solids: Maximum, 545 ppm Sept. 21-30, 1956; minimum, 64 ppm June 13, 1

Hardness: Maximum, 271 ppm Dec. 27-31, 1962; minimum, 43 ppm June 1-21, 1959.

Specific conductance: Maximum daily, 947 micromhos Sept. 24, 1955; minimum daily, 94 micrombos Jun

Water temperatures: Maximum, 85°F Aug. 5, 1963; minimum, freezing point on many days during winter 

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

more comprehensive definition of water quality at this station. Stream frozen Dec. 19 to Mar. 24.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 1-20, 1965...

Jan. -31, 1966...

Mean 

discharge 

(cfs)

679 

467 

421 

326 

335

280 

286 

2168 

1215 

1802

2052 

1720 

1980 

2763 

3896

4284 

3561 

3420 

3446 

3705

Silica 

(S10a)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

30 

39 

44 

41 

46

42 

50 

13 

13 

8.5

6.4 

11 

11 

11 

36

41 

17 

8.0 

20 

84

Potassium 

(K)

Bicarbonate 

(HCO,)

145 

174 

186 

178 

188

184 

188 

115 

83 

85

65 

87 

89 

95 

162

198 

96 

56 

94 

230

Carbonate 

(COJ

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Suifate 

(S04 )

58 

100 

102 

82 

94

98 

101 

35 

31 

21

16

23 

24 

24 

63

75 

34 

16 

37 

130

Chloride 

(Cl)

13 

15 

20 

20 

21

20 

22 

3.6 

1.8 

2.1

2.8 

5.6 

5.4 

5.6 

16

19 

6.0 

3.5 

8.6 

41

Fluoride

(F)

Nitrat

(NO
Weighted average

Time-we ight ed

1397

-

82

95

60

62

32

134

226

156

96

224

100

256

256

212

204

236

248

144

177

0

0

0

0

0

0

0

"

85

79

136

74

54

160

45

86

146

126

150

99

61

85

23

40

23

12

41

10

46

27

22

22

26

29

14

19

Analyses of additional sample

Aug. 30........... A45

8

-1

1.1 39 25

35

80 3.5 218 0 119 50 1.0 .2 

A Discharge at time of sampling.
GREEN RIVER BASIN Continued

9-2510. YAMPA RIVER NEAR MAYBELL, COLO. Con

Specific conductance (micromhos at 25°C), water year October 

Day

2.....

5.....

14.....

24.....

26.....

27.....

Average

October

353 

351

349

394

500

506

505

421

November

506 

507

500

555

555

558

556

540

December

482 

483

484

495

495

486

January

526

529

532

532

February

538

544

March

55?

549

250

April

170 

143

143

?06

212

181

Ma

3

5

2

3
COLORADO RIVER BASIN

>

J 

c

i

Mi

CO

°

o

s

tx

CN

CN

CN

CM

«

CM 

CS

cs

0

o

2

rx

1 

-0

m

^

CO

cs

-

o

o

u.

N.

0

«

^

CO

cs

-

^ Im (<\i-* ill «oini

*5K SIS JIS S"S

S?K K! 5 J I S KP£

* rt « <s~o mm ^ mm ^

<oorv, NCMN mr-^ o-cv,^

°?s sss ssr: ^P?P

^«^ ^« *r-^ ~~

53S SKS S2S SKP

SSS SSS ^3S KSd

eomm rjrjrj *cwr- r-mro

«»« ~~~ '»«» *IA~

SSm SSS 333 S^P

«** " mm «** *^*

KJ? SSS SJJ S°S

S2? SSS 3KS SKS

- £.& >,£ : : : : : ^-g ^£6 s3-g_::j : 3 g
GREEN RIVER BASIN Continued

9-2597. LITTLE SNAKE RIVER NEAR BAGGS, WYO

LOCATION. Lat 41°00'00", long 107°55'10", at gaging station, 600 feet upstream from Wyoming-Colorado 

and 15 miles west of Baggs, Carbon County. 

DRAINAGE AREA. 3,020 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: July 1965 to September 1966. 

REMARKS. Values reported for dissolved solids less than 1,000 ppm are residues at 180°C, and val

constituents unless otherwise noted.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Aug. 29...........

Discharge 

(cfs)

376 

169 

119 

103 

110

1387 

1480 

2210 

1310 

728

74 

10 

2.4 

.2

Silica 

(S102)

13 

17 

21 

18 

19

14 

14 

11 

12 

12

13 

3.1 

13 

9.9

Iron 

(Fe)

0.00 

.00 

.04 

.03 

.00

.16 

.44 

.36 

.00

Calcium 

(Ca)

33 

49 

52 

44 

37

38 

24 

18 

17 

24

42 

58 

61 

78

Magnesium 

(Mg)

6.3 

15 

13 

11 

13

9.0 

5.7 

5.6 

5.0 

6.6

19 

28 

32 

51

Sodium 

(Na)

22 

34 

28 

23 

23

19 

10 

6.5 

10 

17

54 

182 

350 

570

Potassium 

(K)

1.2 

2.3 

2.5 

2.0 

3.3

4.3 

1.5 

.6 

2.0 

1.6

2.2 

4.0 

5.5 

6.7

Bicarbonate 

(HCOJ

137 

217 

225 

184 

183

134 

88 

67 

73 

106

231 

296 

302 

275

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

Sulfate

(so.)

36 

67

54 

44 

35

54 

26 

20 

19 

29

85 

256 

456 

909

Chloride 

(Cl)

4.3

14 

7.1 

5.3 

7.1

3.5 

.7 

1.8 

4.3 

3.5

20 

88 

204 

294

Fluoride

(F)

0.3 

.2 

.3 

.5 

.3

.2 

.3 

.1 

.2 

.2

.5 

.6 

.7 

.9

Nitrat

(NO

0.

.

.

.

.

.

.

.

.

.

.

.

.

.
GREEN RIVER BASIN Continued 

9-2599.5. LITTLE SNAKE RIVER ABOVE LILY, COL

LOCATION. Lat 40°36'27", long 108°20'11", at bridge on State Highway 318, about 6 miles upstream fro

County, and 16 miles upstream from mouth.

DRAINAGE AREA. 3,730 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1966.

Water temperatures: December 1950 to September 1960, October 1961 to September 1966.

Sediment records: May 1958 to September 1964. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 985 ppm Aug. 6-27; minimum, 136 ppm June 1-7.

Hardness: Maximum, 386 ppm Aug. 1-2; minimum, 83 ppm June 1-7.

Specific conductance: Maximum daily, 1,470 micromhos Aug. 7; minimum daily, 199 micromhos June 2.

Water temperatures: Maximum, 86°F July 10; minimum, freezing point on many days during November to 

EXTREMES, 1950-66. Dissolved solids (1950-51, 1952-66): Maximum, 2,330 ppm July 24, 1955; minimum, 

Hardness (1950-51, 1952-66): Maximum, 1,340 ppm July 24, 1955; minimum, 64 ppm July 1-8, 10, 1957, 

Specific conductance (1950-51, 1952-66): Maximum daily, 3,150 micromhos Aug. 16, 1961; minimum dai

Water temperatures (1950-60, 1961-66): Maximum, 88°F July 17, 1955; minimum, freezing point on man

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

more comprehensive definition of water quality at this station. Records of discharge are given fo

Chemical analyses, in parts per million year October 196

Date 

of 

collection

Oct. 1-31, 1965...

Jan. 1-31, 1966...

June 8-14. ........

Mean 

discharge 

(cfs)

224 

146 

132 

172 

88.9

136 

135 

96.4 

120 

128

1397 

1462 

1192 

1001 

980

1185 

1542 

1246 

698

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

44 

51 

49 

43 

62

47 

59 

51 

49 

77

50 

54 

37 

16 

14

8.0 

16 

14 

23

Potassium 

(K)

Bicarbonate 

(HCO,)

164 

192 

222 

190 

248

210 

214 

202 

184 

208

160 

164 

145 

151 

125

104 

118 

98 

116

Carbonate 

(COJ

0 

0 

0 

0 

4

0 

0 

0 

0 

0

0 

0 

4 

0 

0

0 

0 

0 

0

Sulfate 

(S04 )

74 

92 

91 

74 

113

83 

93 

94 

82 

115

82 

117 

85 

46 

36

25 

25 

29 

43

Chloride 

(Cl)

ll 

13 

15 

14 

19

14 

16 

14 

20 

35

13 

12 

7.5 

5.4 

5.0

3.3

2.7 

2.5 

7.8

Fluoride 

(P)

Ni

trat

(NO
GREEN RIVER BASIN Continued

9-2599.5. LITTLE SNAKE RIVER ABOVE LILY, COLO. Co

Chemical analyses

Date 

of 

collection

une 15-20, 1966..

Weighted average

Time-weighted

Tons per day. ...

Mean 

discharge 

(cfs)

404 

279 

161 

86.5 

121

53.0 

13.5 

9.9 

18.3 

1.9

"

A423

"

Silica 

(SiOa)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

in parts per million, water year October 1965 to 

Sodium 

(Na)

34 

48 

66 

87 

91

183 

119 

167 

135 

210

30

62

38

Potassium 

(K)

Bicarbonate 

(HCO,)

146 

182 

210 

226 

236

256 

278 

216 

182 

222

144

186

181

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

--

-

Sulfate 

(SO.)

66 

88 

119 

171 

319

379 

234 

478 

325 

454

59

121

74

Chloride 

(Cl)

10 

16 

20 

24 

24

66 

37 

52 

46 

73

7.6

19

9.5

Fluoride 

(F)

Nitrate 

(NO

Analyses of additional samples

May 10............ B2210 11 26 5.1 11 1.1

229

104 0

97

17 1.6

0 3

.3 .8 

A Mean discharge based on 365 days; mean discharge for 331 days of actual flow, 466 cfs. 

B Discharge at time of sampling.
GREEN RIVER BASIN Continued

9-2599.5. LITTLE SNAKE RIVER ABOVE LILY, COLO

Specific conductance (raicromhos at 25°C), water year Octobe

Day

8.....

16.....

26.....

Average

October

397

442

45S

44C

November

534

542

499

516

December

530

622

683

558

572

January

480

519

602

February

534

March

608

564

51<3

April

358

313

320

307

M

2
QUALITY OF SURFACE WATERS, 1966

v M a
GREEN RIVER BASIN Continued 

9-2610. GREEN RIVER NEAR JENSEN, UTAH

LOCATION. Lat 40°24'30", long 109°14'00", at gaging station 1 mile downstream from Cub Creek and Che

headqua-rters, 6.5 miles northeast of Jensen, Uintah County, and 12 miles upstream from Brush Creek

DRAINAGE AREA. 25,400 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: June 1947 to September 1952, April 1962 to September 1966.

Water temperatures: March 1949 to September 1959, October 1961 to September 1966.

Sediment records: May 1948 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,220 ppm Aug. 5; minimum, 207 ppm May 9-17.

Hardness: Maximum, 476 ppm Aug. 5; minimum, 132 ppm June 18.

Specific conductance: Maximum daily, 1,500 micromhos Aug. 5; minimum daily, 285 micromhos May 9.

Water temperatures: Maximum, 74°F July 18; minimum, freezing point on many days during winter mont

Sediment concentrations: Maximum daily, 24,000 ppm Aug. 5; minimum daily, 27 ppm July 14.

Sediment loads: Maximum daily, 300,000 tons Mar. 16-18; minimum daily, 140 tons July 14. 

EXTREMES, 1947-66. Dissolved solids (1947-52, 1962-66): Maximum, 2,150 ppm Sept. 10, 1963; minimum, 

Hardness (1947-51, 1962-66): Maximum, 1,250 ppm Aug. 12, 1963; minimum, 84 ppm June 1-16, 1963.

Specific conductance (1947-52, 1962-66): Maximum daily, 2,330 micromhos Sept. 10, 1963; minimum da

Water temperatures: Maximum (1949-59, 1961-66), 86°F July 11, 1958; minimum (1949-59, 1961-64, 196

months.

Sediment concentrations (1948-66): Maximum daily, 39,800 ppm Aug. 23, 1960; minimum daily, 9 ppm O

Sediment loads (1948-66): Maximum daily, 2,500,000 tons Mar. 29, 1962; minimum daily, 10 tons on m

REMARKS. Additional samples were collected to further define the quality of water at this station. 

collected at site 8 miles downstream from gaging station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-10, 1965..

Dec. 1-Jan. 31, 

1966. ..........

Feb. 1-Mar. 15. ..

Apr. 6-24........

May 20-31. .......

Mean 

discharge 

(eta)

2576 

2380 

2411 

3491

2200

2332 

4757 

5546 

5276 

5160

6920 

6650 

7824 

6775 

6134

Silica 

(Si03)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

53 

65 

65 

53

57

56 

46 

31 

39 

42

29 

22 

12 

29 

18

Potassium 

(K)

Bicarbonate 

(HCO,)

165 

172 

183 

167

178

184 

173 

175 

155 

159

140 

150 

131 

149 

119

Carbonate

(ccg

0 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

2 

0 

0

Sulfate 

(S04 )

136 

189 

188 

163

172

179 

140 

94 

137 

148

94 

72 

46 

104 

65

Chloride 

(Cl)

24 

31 

30 

24

26

26 

18 

8.2 

16

16

10 

7.1 

5. 1 

13 

6. 5

Fluorlde 

(F)

Nitrat

(NO
GREEN RIVER BASIN Continued

9-2610. GREEN RIVER NEAR JENSEN, UTAH Continu

Date 

of 

collection

June 1-14, 1966..

Sept. 1-30. ......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Jan. 11, 1966.... 

Apr. 26. .........

Mean 

discharge 

(cfs)

5311 

4047 

4020 

3237 

2388

2018 

2000 

2170 

2215 

2238

3214

2080 

2170 

3510

Silica 

(Si02)

6.6 

12

Iron 

(Fe)

Calcium

(Ca)

63 

54

Magnesium 

(Mg)

-

A

26 

20

Sodium 

(Na)

24 

34 

15 

37 

52

57 

60 

202 

69 

63

45

52

390

lalyses

71 

54 

43

Potassium 

(K)

Bicarbonate 

(HCOS)

125 

151 

132 

156 

178

186 

192 

238 

186 

192

164

172

1420

of addition

3.1 

2.3

187 

188 

157

Carbonate

(ccg

0 

0 

0 

0

0 '

0 

0 

0 

0 

0

_

Sulfate 

(S04 )

90 

127 

44 

142 

184

212 

209 

649 

217 

235

147

167

1270

Chloride 

(Cl)

8. 4 

13 

7. 3 

14 

22

26 

26 

32 

26 

27

19

22

164

il samples (instantane

0 

0 

0

213 

155 

150

32 

27

17

Fluoride 

(F)

DUS d

0.5 

.4

Nitrat

(Nc

isch

3.3 

5.7

A Calculated from determined constituents.
GREEN RIVER BASIN Continued

9-2610. GREEN RIVER NEAR JENSEN, UTAH Con

Specific conductance (micromhos at 25°C) of water, water year O

Day

24.....

28.....

Average

October

.

~

November

545

667

December January February March

615

April

596

595

546

M

3

3
GREEN RIVER BASIN Continued

9-2610. GREEN RIVER NEAR JENSEN, UTAH Con

Temperature (°F) of water, water year October 1965 to 

Month

November ..... 

December .....

January........

June ..........

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

Day

1

56 

37

48 

58

67 

65

2

56

40

45 

54 

60

70

3

54 

49 

39

41 

50 

60

70

A

55 

39

45 

54

68

5

56 

41

43 

58 

60

66 

69

6

56 

41

47 

61 

62

65 

66

7

56

40

48 

60 

60

70

8

55 

39

49

61

9

57 

45 

39

46 

60 

60

10

55 

48 

38

48 

58 

62

69

1 1

55 

48 

37

48 

53 

62

12

54 

44 

37

48 

50

65

13

51 

55 

37

49 

49 

62

62

14

50 

48 

38

49 

50 

62

65

15

51 

47 

32

50 

50 

60

64

16

50 

48 

34

50 

52 

62

17

49 

47 

35

49 

50 

61

18

49 

47 

36

49 

57 

62

65

19

51 

48 

34

45 

53 

62

62

20i 

50 

49 

33

42

56 

61

62
COLORADO RIVER BASIN 

GREEN RIVER BASIN Continued 

9-2610. GREEN RIVER NEAR JENSEN, UTAH Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

lb..

16..

17..

18..

19..

20..

21..

22..

23..

24..

2b..

26..

27..

28..

29..

30..

Total

1..

2..

3..

4. .

5..

6..

/..

a..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

JO..

31..

Total

CCTDBER NOVEMBER

Suspended sediment

Mean

dis- Mean -j.

charge concen- Der

(ppm)

-'" ' F

33CO 1300

3300

3C20

2230

2150

2220

2410

2210

2340

2580

2640

25tO

2550

2740

26CO

25SO

2560

2650

26CO

2620

2660

2fiCO

2850

2740

3320

1300

1000

430

400

430

40C

day

12000

12000

8200

2600

2300

2600

2600

220 1300

240 1500

360 2500

560 4000

46CJ 3200

490 3400

730i 5400

510! 3600

490 3400

430 3000

210 1500

200 1400

200 1400

3000

4000

4000

4000

discharge

(cfs)

1550

Suspended sediment

Mean

concentration

(ppm)

._

1680

1840

2050

1820

1750

1880

2090

1790

1860

1900

1860

1880

2770

3050

3040

2700

2800

3600

3680

3730

3730

3700

3680

9000 ! J730

140

98

91

100

150

95

94

97

Tons

day

300

400

500

770

480

DECEMBER

discharge

(cfs)

2900

Suspended sediment

Mean

(ppm)

280

3090 580

3040 S40

3000 520

3140 220

430 3050 ' 170

510

850

460

470

500

3140 220

3230 320

day

2200

4800

4400

4700

1000

1400

1900

2ROO

3290 , 370 3300

3360 ' 370 3<tOO

3390 380 3500

70| 350 ] 3380 380 3500

73

350

510

500

320

370

550

370 2070 300 1700

2600 2880 360J 2ftOO

4200 3270 370 3300

4100 2930 370J 2OOO

2300 , 2850

2800 i 2660

360 2800

360 ?600

5300 2680 360 2600

560 5600 2650

580 5800 2720

580' 5800

560 5600

560| 5600

580

2170 1000 'i 3540 i 500

1340 ,

1270

200

200

1610 300

1460 300

7b75C I 104300

JANUARY

1620

2120 i

1910 ]

1720

2130

1950

2020

1930

I960

1760

19CO

2C50

197C

2COO

3000

3410

3520

32JO

3120

^ 809BO

460

490

390

360

5800

4800

2950

2850

360 ?600

370. 2700

360 2900

360 2BOO

1700 260

1220 200

1290

4200 1290

4700

3400

3000

1330 ,

1520

1620

 i 1 620

81990

FEBRUARY

2100

2050

3000

3000

2000 2080 3000

2000 2080

3000 2090

2COO 1900

3000

2000

2000

2000

2COO

3000

1 2000

1960 2000

1930 i 2000

187C i . 2COO

1760 2000

1660

1700

1740

16CC

1500

135C

15CO

1800

1750

1750

19CO

17CO

IdOO

2200

56310

1840

1860

1840

1920

2000

1950

3000

3000

80110

 

1200

660

900

900

900

1000

2000

7noo

7f>S60

MARCH

1650 __

1920

1860

1750

2040

2000 , 1930

2000 1870

2000

2000

7000

2000

3000

2000

2000

2000 1910 2000

2000

2000

3000

2000

1840 2000

1600 2000

1820

1560

2000

2050 3000

2920 7000

4370 ' 20000

5000 40000

5620 50000

5420 50000

7340 I , 100000

1000 ! 9710 i 300000

1480

2000 1800

2000 1850

2000

2000

1000

1000

1000

2000

2000

2000

2000

2000

2000

3000

64000

2210

1760

1700

1790

1440

1970

2020

1980

2080

52610

1000 ! 9560 300000

2000 . 9420 300000

2000 ' 6380 80000

3000 4160 20000

2000 3580

2000 3430

2000 i 3470

1000 ' 3110

2000

3000

2000

3000

62000

2620

2560

2760

2POO

3510

4330

4710

123760

10000

10000

10000

ROOO

5000

5000

750

1300

2100

2400

6000

5700

12000

25000

31000

1414700
QUALITY OF SURFACE WATERS, 1966

GREEN RIVER BASIN--ContInued

9-2610. GREEN RIVER NEAR JENSEN, UTAH Cent Inued 

Suspended sediment, water year October 1965 to September 1966 Continued

; i ii

. APEXL 1 MAY i' JUNE

Suspended sediment Suspended sediment i Suspended sediment

Mean

Day dis1..

2..

3..

4. .

5..

6. .

7. .

8..

charge

(cfs)

4StO

51tO

5260

Mean

Mean Tons 1 disconcentration 

(ppm)

per charge 

day (cfs)

i 

25001 33000

2400

24CO

5760 2300

33000

34000

36000

6570 2300 41000

6140 19CO 31000

5320 1300 19000

4860 1700, 22000

9.. 4730 1600i 20000

5560

5020

6090

6760

7200

7570

7570

7430

Mean

Mean I Tons : dis. Mean

concentration 

(ppm)

800

680

1200

1500

1600

1800

1400

1100

7680 960

10..; 4840 1700' 22COO 8170

11..

12..

45EO

 5540

13.. 6020

14.. 5520

It)..

16..

17..

18..

19..

477C

700 3700

1100 16000

130G

1100

21000

16000

780 10000

4S30 830 11GOO

4840

447G

54SO

840 11000

770, 9300

1500) 22000

20.. 6360 2100

<!l. .

22..

23..

24..

36000

604C 19CO 31000

8900

9590

10100

8380

6410

5470

5720

7200

6350

6330

1000

1100

1400

2000

1900

1500

1200

1400

1300

640

640

6540 790

54SO : 160C 24000 5840 400

5140 1300 18GOO 5940 170

5140 ' 1300 18000

25.. 4770 1200 15000

26.. 4520

27.. 5210

28.. 6140

980 12000

500 7COO

420 7000

29.. 7320 13GO 26000

30.. 6520 970 17GOO

31.., , 1

1..

2..

3..

4. .

5. .

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

162450 627000

JULY

2660 79

2620 110

2460 98

2450 ' 97

570

780

660

640

6520

per 

day

12000

9200

20000

27000

31000

charge

(cfs)

6330

6760

concentration 

(ppm)

560

1400

6330 1200

6330 1200

6490 , 1 300

37000 5760 900

29000 \ 5400 ; 750

22000 5210 700

20000 4890 440

27000 4350 450

26000

36000

55000

4280

3980

4120

43000 4120

26000

1?000

22000

25000

11000

350

per 

day

94,00

26000

71000

21000

73000

14000

1 1000

9ROO

5800

5300

4000

280 3000

180

200

4260 180

3940

3940

4020

240

240

220

3770 770

11000 3560 320

14000 3430 260

6300

2700*

3380 250

3160 180

7000

?700

?100

7600

7600

7400

7700

3100

7400

7300

1500

360 6300 3300 180' 1600

7010 900 17000 3180 170 1500

6040 ' 800 13000 3300 180

5320

5720

6170

6140

lf,00

700 10000 :i 3110 130 1100

7101 11000

580 9700

590 9800

6 1 Ol 9900

,._ 210780 611900

AUGUST

19GO

1930

2000

230

270

390

2170 460

2440 | 96 630 2170 74000

2380 92 590

2320 88; 550

2270 85' 520

21SO 46 270

2050 32 180

2020

1S70

1960

2140

2120

1200

1400

2100

?H40 65 500

2970

2840

1100 1900

950

129350

7300

201800

SEPTEMBEP

?190

1«70

1030

73

36

36

2700 1880 35

140000 1870 36

100000 IR10 ; 39

430

1«0

190

1RO

ISO

1QO

50000 ?060 47 760

2170 ' 10000 ' 1930 300

2090 2000 1950 400

2230 270 1600 2280 3000

31 170 2300

28 150 2390

30 160

1920 27

2020 31

2C90

1930

2CCO

2090

2100

2CCO

32

140

170

180

38 200

44

300

56G

520

2130 240

2130 240

2130 240

1930

240

1700

3200

2800

1400

1400

1400

63 330

1S70 390 2100

I960 790

2050

2C20

1920

20CO

66260

870

640

390

430

_

4200

4800

3500

2000

2300

37930

2350

2410

2230

290

310

1800 , 2510

2000

300 1900

310 2000

270 1600

2140 120

7040

2170

2300

2410

140

120

110

110

2410 110

2040 140

2230 200

2350 220

2350

2650

2170

1980

1800

1870

2240

67750

220

310

51

45

39

77

110

_.

2210

2100

4000

2AOO

2000

2320

2120

3000

7000

690 7520 4(100

770

700

680

720

720

770

1200

1400

1400

2380 3000

2460

2420

4000

2870

2R30

2780

2620

3000

6000

5000

5000

4000

2630 I 4000

2670 \ 4OOO

2200 1910 1000

300 1S40 1000

240 1910

190

390

660

333330

2260

2000

67130

100O

..

7000

1000

66910

TOTAL LOAD FOR YEAR 1 TONS) .............................................................. 3687420
GREEN RIVER BASIN Continued 

9-2610. GREEN RIVER NEAR JENSEN, UTAH Continue

Periodic determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Mar. 31, 1966. ....

An a* ^

Time 

(24 hour)

1200 

1240 

1100 

1200 

1130 

1200

1715 

1140 

1400 

1000 

1150 

1210

Water 

temperature

(°F)

48 

42 

49 

49 

54 

51

66 

68 

70 

69 

69 

58

Sampling 

point

Discharge

(cfs)

1920 

3230 

4800 

5370 

3510 

9510

4240 

1790 

1660 

1910 

1920 

1980

Sediment 

concentration 

(ppm)

98 

429 

2460 

1360 

448 

2180

152 

32 

271 

18200 

199 

150

Sediment 

discharge 

(tons per day)

508 

3740 

31900 

19700 

4240 

56000

1740 

155 

1210 

93800 

1030 

802

Percen

0.002

17 

49 

28 

37 

23

49 

60 

29

0.004

22 

54 

34 

43 

26

58 

70 

34

0.008 
GREEN RIVER BASIN--Continued 

9-3020. DUCHESNE RIVER NEAR RANDLETT, UTAH

LOCATION. Lat 40°13'00", long 109°47'00", at gaging station 0.2 mile downstream from Uinta River, 1.2 

southeast of Fort Duchesne.

DRAINAGE AREA. 3,920 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1951, November 1956 to September 1

Water temperatures: December 1950 to September 1951, November 1956 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 2,250 ppm July 7-31; minimum, 515 ppm May 7-9.

Hardness: Maximum, 784 ppm July 7-31; minimum, 258 ppm May 7-9.

Specific conductance: Maximum daily, 3,320 micromhos Aug. 19; minimum daily, 692 micromhos Feb. 22.

Water temperatures: Maximum, 73°F July 11, 26, 31; minimum, freezing point on many days during wint

EXTREMES, 1950-51, 1956-66. Dissolved solids: Maximum, 3,330 ppm Aug. 1-6, 9-26, 29, 30, 1961; minim

Hardness (1956-66): Maximum, 1,020 ppm May 1-15, 1959; minimum, 133 ppm June 22-24, 1965.

Specific conductance (1950-51, 1956-60, 1961-66): Maximum daily, 4,490 micromhos Aug. 24, 1960; min

Water temperatures: Maximum, 74°F July 29, 30, 1960, July 23, 1964; minimum, freezing point on many 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-9, 1965. . .

Jan. 1-6, 1966. . .

May 26-31. .......

Mean 

discharge 

(cfs)

864 

564 

853 

785 

788

701 

685 

649 

588 

638

695 

679 

700 

632 

809

739 

558 

566 

363 

317

684 

1093 

1116 

975 

996

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

90 

135 

192 

122 

119

103 

137 

103 

105 

91

72 

66 

103 

86 

101

103 

167 

144 

183 

213

123 

71 

110 

92 

134

Potassium 

(K)

Bicarbonate 

(HCOj)

238 

292 

324 

244 

282

262 

290 

246 

262 

240

226 

240 

240 

228 

263

237 

287 

280 

298 

298

220 

176 

212 

214 

236

Carbonate 

(COJ

0 

0 

0 

20 

0

0 

6 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

12 

0 

0

Sulfate 

(S0«)

268 

401 

593 

368 

352

315 

410 

307 

319 

274

218 

205 

301 

269 

316

298 

474 

405 

494 

551

327 

208 

336 

277 

391

Chloride 

(Cl)

44 

68 

92 

56 

56

50 

70 

54 

62 

54

34 

26 

52 

46 

54

58 

94 

72 

96 

121

64 

37 

54 

42 

69

Fluoride

(F)

Nitrate 

(NO,)
June 1-6, 1966. . .

June 27-30. ......

Sept. 12-30......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Dec 9

Apr. 15, 1966....

558 

325 

184 

67.2 

79. 2

45. 2 

47. 0 

76. 0 

116

--

528

-

146 

216 

273 

342 

332

425 

428 

375 

329

121

192

172

Analyses of a

683 

699 

528

11 

11 

10

92 

79 

78

55 

46

45

131 

91 

100

2.3 

1.7 

1.9

258 

308 

324 

352 

342

376 

374 

352 

350

257

287

366

0 

0 

0 

0 

0

0 

0 

0 

0

~

dditional s

270 

272 

274

10 

0 

0

440 

635 

733 

882 

864

1060 

1040 

976 

851

354

521

504

74 

116 

160 

160 

148

210 

218 

163 

136

61

95

86

imples (instantaneous disch

405 

290 

298

68 

40 

48

0.7 

.6

.8

0.4 

.6 

.2
GREEN RIVER BASIN Continued

9-3020. DUCHESNE RIVER NEAR RANDLETT, UTAH C

Specific conductance (micromhos at 25°C), water year Octobe

Day

3.....

14..... 

15.....

16..... 

17..... 

18..... 

19.....

30..... 

31.....

Average

October

871

1*10 

1440

1710 

1900 

1570 

1380

1160 

1160

1220

November

1220

1180 

1190

1200 

1210 

1290 

1220

1130

1190

December

1160

1320 

1330

1390 

1500 

1320 

1280

968 

929

1190

January

1150

970 

963

951 

1010 

1150 

1120

800 

960

1000

February

732

902 

900

869 

911 

900 

919

819

March

1060

1100 

1100

1080 

1120 

1160 

1220

1060 

1010

10-90

April

949

1370 

1400

1580 

1580 

1660 

1610

1760

13-30

Ma

18

111

113

119

111

111

111

122

118
COLORADO RIVER BASIN

D O

ozc < 2 >
GREEN RIVER BASIN Continued 

9-3065. WHITE RIVER NEAR WATSON, UTAH

LOCATION. Lat 39°59", long 109°11", at bridge on State Highway 45, 350 feet upstream from gaging st

and 7 miles north of Watson, Uintah County. 

DRAINAGE AREA. 4,020 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1966.

Water temperatures: December 1950 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 2,380 ppm July 21; minimum, 248 ppm May 24-26.

Hardness: Maximum, 780 ppm July 21; minimum, 168 ppm May 24-26.

Specific conductance: Maximum daily, 3,500 micromhos July 21; minimum daily, 404 micromhos May 25.

Water temperatures: Maximum, 84°F July 18; minimum, freezing point on many days during winter mont

EXTREMES, 1950-66. Dissolved solids (1950-54, 1955-66): Maximum, 2,380 ppm July 21, 1966; minimum, 

Hardness (1954-66): Maximum, 1,410 ppm Aug. 4, 1955; minimum, 144 ppm Feb. 3, 1965.

Specific conductance: Maximum daily, 4,450 micromhos Aug. 4, 1955; minimum daily, 319 micromhos Ju

Water temperatures: Maximum, 88°F Aug. 8, 1954; minimum, freezing point on many days during winter 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analys in parts per million, water year October 196

Date 

of 

collection

Oct. 1-14, 1965..

Jan. 1-10, 1966. .

Apr. 18-30. ......

June 1-4. ........

Mean 

discharge

(cfs)

602 

487 

503 

467 

437

426 

422 

383 

384 

372

1014 

499 

597 

977 

1572

1525 

1016 

1337 

1185 

923 

945

Silica 

(S103)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

64 

136 

73 

82 

93

108 

95 

98 

101 

98

99 

84 

62 

48 

44

28 

36 

26 

111 

46 

42

Potassium 

(K)

Bicarbonate 

(HCO,)

193 

222 

206 

212 

229

259 

232 

242 

253 

234

230 

209 

184 

184 

176

180 

170 

146 

224 

154 

154

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

139 

238 

158 

171 

183

221 

216 

203 

202 

197

221 

173 

134 

97 

95

91 

87 

69 

234 

110 

104

Chloride 

(Cl)

51 

132 

58 

65 

72

82 

67 

76 

82 

73

67 

62 

48 

36 

23

41 

31 

24 

95 

30 

28

Fluoride

(F)

Ni

trat

(NO
June 5-15, 1966. . 

June 16-30. ......

July 1-8. ........

Aug. 1-8.........

Sept. 1-30.......

Weighted average

Time-weighted

Tons per day. . .

509

232

--

56

145

121

83

113

178

224

2^2

272

228

212

289

40~

--

118 

227

346

Q-I r

325

220

247

177

241

45 

95

in

64

87
GREEN RIVER BASIN Continued

9-3065. WHITE RIVER NEAR WATSON, UTAH Co

Specific conductance (raicrorahos at 25°C), water year Octob

Day

30..... 

31.....

Average

October

815

November

961

-

December

897

B7Q

922 

952

964

January

968

949

~

February

94A

~

March

1150 

946

961

April

7Rft

-

M
COLORADO RIVER BASIN
GREEN RIVER BASIN Continued

9-3070. GREEN RIVER NEAR OURAY, UTAH

LOCATION. .Lat 40°4'20", long 109°43'40", at gaging station 2.8 miles upstream from Willow Creek, an

DRAINAGE AREA. 35,500 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952, November 1956 to October 19

Water temperatures: December 1950 to September 1952, November 1956 to September 1961, October 196

Sediment records: December 1950 to September 1955, November 1956 to October 1966 (discontinued). 

EXTREMES, 1965-66. Dissolved solids: Maximum, 863 ppm Aug. 7-9; minimum, 278 ppm May 6-31.

Hardness: Maximum, 454 ppm Aug. 7-9; minimum, 178 ppm May 6-31.

Specific conductance: Maximum daily, 1,320 micromhos Aug. 7; minimum daily, 390 micromhos May 11.

Sediment concentrations: Maximum daily, 12,000 ppm Mar. 16, 17; minimum daily, 94 ppm July 17.

Sediment loads: Maximum daily, 450,000 tons Mar. 17; minimum daily, 300 tons Dec. 29. 

EXTREMES, 1956-66. Dissolved solids (1958-66): Maximum, 1,380 ppm Aug. 20-22, 1963; minimum, 168 p

Hardness (1958-66): Maximum, 640 ppm Sept. 13, 1963; minimum, 111 ppm May 12, 1963.

Specific conductance (1958-66): Maximum daily, 2,030 micromhos Aug. 21, 1963; minimum daily, 268 

Water temperatures (1950-52, 1956-61): Maximum, 84°F Aug. 14, 1960; minimum, freezing point on se

Sediment concentrations: Maximum daily, 67,000 ppm Aug. 31, 1957; minimum daily, 67 ppm Aug. 19, 

Sediment loads: Maximum daily, 1,110,000 tons Aug. 31, 1957; minimum daily, 72 tons Dec. 12, 1961

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 1-15, 1965. .

Dec.l-Feb. 28,

Mar. 1-31........

Aug. 10-31.......

Sept. 1-30. ......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge

(cfs)

3904 

4148 

4090

3266 

5867

6522 

7534 

10250 

6567 

4000

2376 

2395 

2387 

2336 

2577

"

4413

Silica 

(Si02)

9 7 

8' 8 

9.4

-

__

~

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

71 

84 

77

81 

70

53 

42 

32 

41 

59

82 

86 

95 

74 

86

63

71

756

Potassium

(K)

Bicarbonate 

(HCO,)

190 

206 

205

209 

173

177 

165 

151 

143 

158

190 

222 

230 

198 

202

182

190

2170

Carbonate

(ccg

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

-

_

Sulfate 

(S04 )

197 

248 

233

244 

207

165 

139 

100 

129 

181

252 

258 

401 

247 

271

194

217

2310

Chloride 

(Cl)

32 

39 

35

35 

26

23 

19 

15 

20 

28

36 

41 

38 

35 

45

28

32

336

Fluoride 

(F)

N

tra

(N
GREEN RIVER BASIN Continued

9-3070. GREEN RIVER NEAR OURAY, UTAH Continue

Analyses of additional samples

Date 

of 

collection

Oct. 3........ ...

Mean 

discharge 

(cfs)

2950 

4760 

8240 

2300 

2910

Silica 

(SiO,)

7.5 

8.9 

10 

5.4 

5.8

Iron 

(Fe)

Calcium 

(Ca)

64 

67 

46 

69

77

Magnesium 

(Mg)

31 

29 

22 

34 

34

Sodium

(Na)

73 

71 

39 

79 

80

Potassium 

(K)

2.5 

2.5 

4.1 

3.2 

3.5

Bicarbonate 

(HCOJ

204 

203 

162 

176 

208

Carbonate 

(CO,)

0 

0 

0 

6 

0

SuUate 

(SO.)

223 

216 

120 

251 

266

Chloride 

(Cl)

34 

30 

18 

37 

38

Fhioride

(F)

0.4 

.4 

.4 

.5 

.4

Nitrate 

(NO,)

0 5 

2 3 

2 7 

4 7 

6 3

Temperature (°F) of water, water year October 1965 to Se

Month

November ..... 

December .....

May

June ..........

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

September .....

1

57

56 

56

70

r>

68

2

69

54

60

78 

71

3

58

62 

68

4

60

50 

65 

67

78 78 

6*| 72

5

59

52 

66

6

60

51

78) 78 

68 [ 71

7

59

67

73 

72

8

59

54

9

54 

65

76 

71 

10

61

52 

58

76

1 1

60

T7

7,

50 

55

76

' I

57

51 

55

69

55 

57

14 

57

57

69

15

55

58 

57

79

Day 

16 17

57 

60

79

56

61

80

18

53

40

50 

64

79

J^l6ll _L63.l6*

19

__

53

40

49 

66

72

79

20 

52

42

50 

66

73

^63J63

77

39 

49

74

78 

70
GREEN RIVER BASIN Continued

9-3070. GREEN RIVER NEAR OURAY, UTAH Co

Specific conductance (micromhos at 25°C), water year Octob

Day

9.....

15..... 

16.....

22.....

29.....

Average

October

845

 

November December January February March

-

792 

769

696

801

~

April

687

662 

673

M

4

4

4

4

4

4
COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

9-3070. GREEN RIVER NEAR OURAY, UTAH Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Suspended sediment

Mean 

discharge

(cfs)

4860

4960

4840

4840

4220

3840

3600

34CO

3500

34CO

33CO

3400

3500

3500

3400

3940

4400

4400

4440

4420

4400

4400

44CO

4350

43CO

4300

4370

4350

36CO

3200

3100

124930

Mean T Tons

concentration per

(ppm) , day

2400

1900

1400

1100

830

630

570

550

490

400

420

31000

25000

18000

14000

9400

6500

5500

5000

4600

3700

3700

520| 4800

540! 5100

530

650

950

1300

1400

1100

5000

6000

10000

15000

17000

13000

850 10000

770

680

600

530

550

590

580

520

460

400

340

 

9100

8100

7100

6200

6400

6800

6800

6100

4500

3400

2800

279600

JANUARY

2500

3100

3500

3700

3200

2900

2700

2800

3200

3200

3300

3300

3400

3400

33CO

3200

3200

3000

2800

2500

2300

2400

2400

2350

2350

2350

2200

2400

2600

2100

2800

89050

600

1000

2000

2000

1000

1000

800

900

1000

1000

2000

2000

2000

2000

2000

1000

1000

1000

900

600

500

600

600

500

500

500

400

600

700

800

900

32400

NOVEMBER

Mean 

discharge

(cfs)

3100

3100

3160

3220

3340

3380

3100

3090

3120

3160

2930

2930

2950

2950

3130

3940

4130

4420

3940

4820

5310

5390

5500

5770

5830

6280

5770

5060

5020

4860

_

122TOO

Suspended sediment

Mean Tona

concentration

(ppm)

290

230

200

220

250

260

250

240

240

240

260

280

310

350

450

560

620

580

480

420

450

520

680

1000

1500

1900

2100

1700

1000

480

per

day

2400

1900

1700

1900

2200

2400

2100

2000

2000

2000

2000

2200

2500

2800

3800

6000

6900

6900

5100

5500

6400

7600

10000

16000

24000

32000

33000

23000

14000

6300

_

25660(1

FEBRUARY

2900

2900

2700

2800

2900

3000

2900

2900

3000

3000

3000

3000

3000

3000

2900

2800

2800

2600

2600

2600

2700

3000

3200

3100

3100

3000

3000

3300

81700

1000

1000

800

900

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

900

900

700

700

700

800

1000

1000

1000

1000

1000

1000

2000

27400

DECEMBER

Mean 

discharge

(cfs)

4620

4480

4370

4480

4440

4460

4520

4500

4640

4600

5040

5240

5110

Suspended sediment

Mean

concentration

(ppm)

290

270

250

250

280

320

370

420

470

470

420

380

380

4560 370

3890 340

4620

4330

4110

3940

3750

3690

3720

4260

3700

3500

3000

2600

2300

2000

2200

2300

12317O

300

280

__

__

_v

Tons

per

day

3600

3300

2900

3000

3400

3800

4500

5100

5900

6100

5700

5400

5700

4600

3600

3700

3300

3000

2000

2000

2000

2000

3000

2000

2000

1000

700

500

300

400

500

945OQ

MARCH

3500

3600

3600

3500

3400

3200

3100

3100

3800

4100

5200

6000

7000

8200

8160

12700

14000

12500

11600

8600

6220

5390

5200

5000

4600

4400

4200

4200

4300

4500

5020

181890

_

_

7700

12000

12000

9800

7700

5200

3800

2600

2000

1600

1400

1200

1100

1000

1100

1500

1900

_

2000

2000

2000

2000

2000

100O

1000

1000

2000

3000

10000

30000

70000

200000

170000

410000

450000

330000

240000

120000

64000

38000

28000

22000

17000

14000

12000

11000

13000

18000

26000

2311000
QUALITY OF SURFACE WATERS, 1966

GREEN RIVER BASIN Continued

9-3070. GREEN RIVER NEAR OURAY, UTAH Continued 

Suspended sediment^ water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

I ..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

1..

a..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

2J..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean

discharge

(cfs)

575C

62CO

6450

6650

7C50

6120

73CO

6720

61CO

5860

61CO

5880

6130

7150

7020

59CO

5880

5860

6300

6180

7880

7520

6860

62CO

6020

5790

5390

5900

6980

8510

 

19567C

32CO

3100

30CO

2900

2800

27CO

26CO

26CO

2500

2400

23CO

220O

22CO

21CO

2050

2050

2050

2C50

2110

2170

2310

2210

2190

2250

2270

2250

22CO

2260

22CO

2250

2180

7367C

APRIL

Suspen ~7

Mean

tration 

(ppm)

2100

2200

210C

1900

2000

19CC

1500

1100

890

860

810

800

910

9CO

750

65C

66C

7CO

770

910

960

870

760

670

62C

620

67C

820

1200

1400

__

JULY

28CO

2700

1500

570

330

230

210

220

260

250

200

170

160

150

130

110

94

120

170

230

350

440

340

240

230

220

230

310

410

520

62C

led sediment ' 

Tons

per

day

33000

37000

37000

34000

38000

42COO

30000

20COO

15000

14000

13COO

13000

1500C

17000

14COO

10000

10COO

11000

13COO

15000

20000

18000

14000

11000

10000

9700

9800

13000

23000

32000

,_ 591500

24COO

22000

12000

4500

2500

1700

1500

1500

1800

1600

1200

1000

950

850

720

610

520

66G

970

1300

2200

2600

2000

1400

1400

1300

1400

1900

2400

3200

3600

105280

Mean

discharge

(cfs)

8150

7020

6520

7080

8900

10100

11000

11600

11600

12400

13400

15000

14100

14100

11900

9520

7880

7460

9300

8870

8660

9300

9380

8930

9110

10000

9720

8330

8120

8360

8390

304200

2250

2330

2230

2230

2740

2590

2420

2370

2370

2310

2310

2400

2510

2500

2510

2520

2340

2250

2170

2350

2410

2410

2360

2170

2370

2320

2470

2520

2180

2060

1900

72930

MAY

Suspen

Mean

concentration

(ppm)

1300

960

870

1000

1200

1100

1100

1700

2300

2100

2000

2400

2300

2100

1800

1300

1100

9?0

840

820

790

840

1000

990

730

670

360

860

680

620

670

AUGUST

1500

2500

2500

3700

5100

6300

7800

5600

2200

1000

550

560

600

570

510

460

440

440

440

430

410

320

230

270

300

250

210

190

210

230

250

__

Jed sediment

 

Tons

per

day

29000

18000

15000

19000

29000

30000

33000

53000

72000

70000

72000

97000

88000

80000

53000

33000

23000

18000

21000

20000

18000

21000

25000

24000

18000

18000

2?000

19000

15000

14000

15000

1087000

9100

16000

15000

22000

38000

44000

51000

36000

14000

6200

3400

3600

4100

3800

3400

3100

2800

2700

2600

2700

2700

2100

1500

1600

1900

1600

1400

1300

1200

1300

1300

301400

Mean

discharge

(cfs)

8480

8420

8690

8660

7ftlO

7970

7350

65?0

6320

6220

5800

5400

5200

4900

4700

4700

4700

4700

4600

4500

4400

4300

4100

4000

3900

3700

3600

3500

3400

3300

I 163640

2330

2490

22SO

2180

2190

2130

2140

2150

7350

2180

2280

2640

2680

2510

2490

2680

2640

2810

2790

2850

2850

3220

3160

3070

3020

3100

3000

2130

2780

2210

77300

JUNE .

Suspen

Mean

tration 

(ppm)

580

600

660

510

410

480

500

460

510

530

380

?50

240

280

270

190

190

280

320

300

310

340

280

200

210

250

230

420

1000

1900

__

SEPTEM

2200

4100

2400

600

620

700

740

500

420

590

760

820

750

780

R?0

700

1300

2000

1200

340

340

340

320

280

260

?60

260

270

370

610

_

ded sediment

Tons

per 

day

13000

14000

15000

12000

8400

10000

9900

8100

fl7on

8900

6000

3600

3400

3700

3400

2400

2400

3600

40OO

3600

3700

*90O

3100

2700

2200

2500

2?00

4000

9200

17000

194100

pea

14000

?80OO

14000

3500

3700

4000

4300

2900

7700

3500

4700

5800

 5400

5300

5SOO

 5100

93OO

15000

9000

2600

2600

3000

2700

2300

2100

2200

2100

1600

2800

3600

173300

TOTAL DISCHARGE FOR YEAR (CFS-CAYS). 

TOTAL LOAD FOR YEAR I TONS I. .........

1610850

5434080
GREEN RIVER BASIN Continued 

9-3070. GREEN RIVER NEAR OURAY, UTAH Contin

Periodic determinations of suspended-sediment discharge and particle size

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

________________P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Watoy

Date of collection

Oc . 1, 1965. ......

Oct. 3. ............

Time 

(24 hour)

1410 

1345 

1700 

1500 

1530

1630 

1730 

1250 

1500 

1530 

1220

1800 

1300 

1730 

0900 

1140 

1355

Water 

temperature 

(°F)

57 

49 

45 

39 

37

40 

53 

48 

56 

60 

65

76 

78 

78 

73 

65 

57

Sampling 

point

Discharge

(cfs)

4860 

D 3160 

3220 

5660 

4840

11400 

D 4300 

8150 

7640 

7670 

7520

D 3100 

2130 

2380 

2420 

2250 

2910

Sediment 

concentration 

(ppm)

2410 

152 

232 

2190 

542

7040 

873 

1990 

1280 

1020 

454

3650 

118 

3790 

12500 

453 

1420

Sediment 

discharge 

(tons per day)

31600 

1300 

2020 

33500 

7080

217000 

10100 

43800 

26400 

21100 

9220

30600 

679 

24400 

81700 

2750 

11200

Perc

0.002

52

20 

31

43 

44 

41 

29 

29

63

61 

68 

61 

48

0.004

59

23 

35

51 

50 

42 

36 

33

82

79 

80 

87 

63

0.00

Particle-size analyses of bed material, water year October 1965 t

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

1530 

1530 

1140

Water 

temperature 

(°F)

37 

60 

65

Sampling 

point

Discharge

(cfs)

4840 

7670 

2250

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Perc

0.062

0 

0 

0

0.125

5 

15 

21

0.25

60 

7

82

D Daily mean discharge.
GREEN RIVER BASIN Continued 

9-3145. PRICE RIVER AT WOODSIDE, UTAH

LOCATION (revised). Lat 39°15'50", long 110°20'45", at gaging station on left bank wing wall of old 

at Woods!de, Emery County, and 20 miles upstream from mouth. 

DRAINAGE AREA. 1,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1946 to September 1949, February 1951 to September 

Water temperatures: February 1951 to September 1959, November 1961 to September 1963, October 196

EXTREMES, 1965-66. Dissolved solids: Maximum, 5,190 ppm Nov. 20, 21; minimum, 908 ppm Sept. 6, 7.

Hardness: Maximum, 1,830 ppm Aug. 31; minimum, 465 ppm Sept. 6, 7.

Specific conductance: Maximum daily, 6,200 micromhos Dec. 20; minimum daily, 1,270 micromhos Sept

Water temperatures: Maximum, 87°F Aug. 2, 3, 9; minimum, freezing point on many days during winte

EXTREMES, 1951-66. Dissolved solids: Maximum, 8,220 ppm Dec. 11, 1951; minimum, 592 ppm May 21-30, 

Hardness: Maximum, 3,010 ppm Dec. 11, 1951; minimum, 353 ppm June 1-3, 6-10, 1952.

Specific conductance: Maximum daily, 8,540 micromhos Dec. 11, 1951; minimum daily, 814 micromhos 

Water temperatures (1951-59, 1961-63, 1964-66): Maximum, 90°F July 10, 11, 1954; minimum, freezin

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oc . 1-15, 1965..

No . 27-30. ......

Dec. 27-31....... 

Jan. 1-4, 1966. . .

Mar. 1-2.. .......

Mean 

discharge 

(cfs)

57.9 

330 

73.4 

65. 9 

60.1 

78.0

228 

89.0 

121 

178 

82.8 

65. 5

84. 0 

182 

136 

46. 5 

70. 0 

53.7

67. 4 

60.2 

53. 7 

45. 5 

101 

151

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

637 

465 

649 

569 

717 

592

665 

932 

511 

788 

869 

724

509 

363 

699 

858 

670 

462

402 

463 

549 

582 

367 

393

Potassium 

(K)

Blear - 

bonate 

(HCO,)

313 

288 

341 

313 

331 

328

317 

366 

311 

346 

397 

417

360 

266 

354 

440 

428 

404

382 

397 

431 

420 

281 

262

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

o

Sulfate 

(S04 )

2280 

1650 

2320 

2050 

2590 

1970

2320 

3200 

1750 

2530 

2960 

2600

1870 

1120 

2380 

3070 

2140 

1700

1500 

1700 

2040 

2150 

1370 

14OO

Chloride 

(Cl)

67 

48 

64 

58 

72 

54

65 

75 

52 

71 

79 

79

61 

39 

73 

91 

70 

60

53 

58 

66 

69 

45 

44

F1UOrlde

(F)

Ni

tra

(N
Mar. 3, 1966... . .

AUK. 16-30. ......

120 

122

222

275

123

186

69.2

74.3

143

72.4

166

45.0

94.7

28.0

19.3

624

626

167

332

427

373

283

176

224

340

448

600

454

504

459

469

486

548

544

576

426

437

310

589

656

887

558

374

608

504

584

360

364

248

254

328

324

295

234

316

282

328

338

306

324

312

316

298

276

280

258

266

320

294

238

336

292

274

258

216

260

220

00000000050000000000000000000002290

2320

619

1250

1590

1400

1040

621

815

1230

1600

2060

1650

1820

1660

1750

1780

1950

2050

2200

1970

1700

1190

2170

2370

3120

2060

1720

2310

1980

2220

70

69

26

41

52

48

39

24

31

46

56

59

55

54

52

56

56

60

56

64

41

49

38

62

66

64

52

50

64

58

70
GREEN RIVER BASIN Continued

9-3145. PRICE RIVER AT WOODSIDE, UTAH Contin

ilyses, in parts per million, water year October 1965 to 

Date 

of 

collection

Aug. 31, 1966....

Sept. 6-7........

Weighted average

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge

(cfs)

441 

747 

80.0 

41.0 

30.8 

67.4 

29.3

~

92.0

~

Silica 

(SiOJ

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

219 

717 

352 

149 

640 

401 

618

479

523

119

Potassium 

(K)

Blear - 

bonate 

(HCO,)

288 

292 

224 

216 

254 

266 

256

311

316

77

Carbonate 

(CO,)

0 

0 

0 

6 

0 

0 

0

__

Sulfate 

(SO,)

1950 

2470 

1320 

551 

2320 

1420 

2320

1750

1920

435

Chloride 

(Cl)

28 

69 

38 

20 

62 

40 

70

53

58

13

Fluorlde 

(F)

Ni

tra

(NO

Analyses of additional samples (instantaneous disc

Mar. 17, 1966.... 

June 21. .........

192 

56

7.2 

8.1

138 

182

101 

165

279 

427

5.9 

9.9

254 

284

0 

0

1120 

1680

35 

52

0.4 

1.2

0

4.

Temperature (°F) of water, water year October 1965 to S

Month

October

November ..... 

December .....

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

September .....

Day

1

85 

78 

32

32 

32 

35

64 

80

70

72 

85 

78

2

80 

78 

33

32 

32 

32

65 

73 

70

73 

87 

78

3

80 

76 

35

32 

32 

36

65 

73

75 

87

4

80 

78 

35

32 

32

60

73 

70

7* 

80

5

80 

35

32 

32

67 

72 

70

80 

80

6

85 

78

32 

32 

36

7* 

70

84 

86

80

7

80 

75 

33

32 

32 

39

63 

69

85 

86

8

81 

78 

33

32 

32

37

65 

76 

70

85 

86 

78

9

85 

70 

33

32 

32

37

65 

76

70

86 

87

10

85 

71 

35

32 

32

37

65 

76 

71

86 

85

11

80 

60 

32

32 

32 

45

68

70

85 

80

12

80 

60 

34

32 

32

40

70 

65

83

78

13

78 

55 

32

32 

32

40

70 

70

84 

78

14

78 

55 

33

32 

32

70 

72 

70

86 

83

80

15

11 

32

32 

32 

40

75 

72 

71

85 

82 

79

16

50 

32

32

32 

43

70 

70

85 

85 

80

17 | 18

60 

50 

32

32

32 

45

68 

75

85 

84 

80

50 

32

32 

32 

45

60 

73 

73

84 

82

19

55 

32

32 

47

60 

72 

73

85 

84

20

78 

55 

32

32

60 

72 

72

84

"

21

80 

50 

33

32 

35 

48

72 

72

83

78
GREEN RIVER BA5IN Continued

9-3145. PRICE RIVER AT WOODSIDE, UTAH -C

Specific conductance (micromhos at 25°C), water year Octob

Day

2.....

12.....

20.....

25.....

30.....

Average

October

4610

4700

4620

3640

4010

4050

November

4270

4750

5750

5020

4630

December

4340

4320

6200

3330

2920

3820

January

3430

3470

4380

4110

3710

3840

February

3740

3680

3850

3770

March

2770

2440

2360

1470

2740

April

1590

1770

1840

2470

2020

Ma

31

27

33

32

35

33
GREEN RIVER BASIN Continued

9-3150. GREEN RIVER AT GREEN RIVER, UTAH 

(Irrigation network station)

of Green River, 

LOCATION. Lat 38°59'10", long 110°09'00", at bridge on U.S. Highways 50 and 6 in 

DRAINAGE AREA. 40,600 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1966.

Water temperatures: May 1949 to September 1959, October 1964 to September 1966.

Sediment records: May 1930 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,370 ppm Aug. 11; minimum, 330 ppm May 7-16.

Hardness: Maximum, 730 ppm Aug. 11; minimum, 194 ppm May 7-16.

Specific conductance: Maximum daily, 1,680 micromhos Aug. 11; minimum daily, 484 micromhos May 13.

Sediment concentrations: Maximum daily, 17,000 ppm Sept. 1; minimum daily, 66 ppm Nov. 12.

Sediment loads: Maximum daily, 330,000 tons Mar. 14, 18, 19; minimum daily, 570 tons Nov. 12. 

EXTREMES, 1928-66. Dissolved solids: Maximum, 2,330 ppm Aug. 18, 1963; minimum, 194 ppm June 21-30, 

Hardness: Maximum, 1,240 ppm Aug. 18, 1963; minimum, 128 ppm June 21-30, 1933.

Specific conductance (1941-66): Maximum daily, 2,620 micromhos Aug. 6, 1963; minimum daily, 272 mic

Water temperatures (1949-59, 1965-66): Maximum, 86°F Aug. 13, 1958; minimum, freezing point on many 

Sediment concentrations (1930-66): Maximum daily, 63,100 ppm July 11, 1936; minimum daily, 20 ppm S

Sediment loads (1930-66): Maximum daily, 2,230,000 tons July 11, 1936; minimum daily, 54 tons Sept. 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. -31, 1965. .

Jan. -31, 1966. .

July 3-7. ........

Aue. 12-18. ......

Mean 

discharge

(cfs)

4108 

4023 

4034 

2949 

2984 

6398

6550 

7442 

11530 

8343 

7397 

4351

3210 

2994 

2184 

2454 

2340 

2421

Silica 

(S10,)

9.5 

7. 5 

1.8 

12 

9.6 

8.3

11 

6.9 

7.4 

9.1 

9.6 

9.1

7.7 

9.9 

8.7 

11 

12 

8.5

Iron 

(Fe)

Calcium 

(Ca)

67 

72 

52 

67 

67 

68

59 

55 

50 

42 

48 

55

64 

69 

74 

94 

188 

75

Magnesium 

(Mg)

31 

35 

32 

39 

32 

26

27 

20 

17 

22 

18 

25

23 

23 

27 

37 

63 

36

Sodium 

(Na)

93 

98 

95 

88 

84 

81

61 

55 

37 

45 

34 

52

79 

90 

97 

98 

130 

87

Potassium 

(K)

Blcarbonate 

(HCOj)

212 

218 

134 

235 

214 

193

184 

156 

166 

154 

155 

167

170 

198 

202 

246 

262 

210

Carbonate 

(CO,)

0 

0 

8 

0 

0 

0

0 

12 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0 4 )

262 

293 

284 

264 

246 

243

199 

156 

111 

140 

124 

181

235 

243 

277 

329 

710 

288

Chloride 

(Cl)

35 

38 

33 

38 

36 

28

23 

20 

16 

16 

10 

19

29 

34 

37 

40 

42 

38

Fluoride 

(F)

Nitrate 

(NO,
Aug. 19-31, 1966.

Sept. 29-30. .....

Weighted average

Time-weighted 

average. .....

Tons per day. . .

2309 

3390

2530

3020

2375

4436

--

8.7 

10

8.2

7.1

7.0

6.4

8.5

8.5

102

68 

132

126

74

72

77

62

65

741

36 

51

50

40

39

37

28

31

340

78 

128

111

90

87

97

73

80

880

198 

268

214

208

204

204

187

195

2240

0 

0

0

0

0

0

-

264 

539

519

302

296

314

226

249

2710

35 

27

31

41

38

44

28

31

336

Analyses of additional samples (instantaneous dischar

Nov. 29, 1965.... 

Mar. 18, 1966.... 

June 17.. ........

5020 

13740 

4720

9.7 

8.4 

7.4

70 

65 

51

34 

22 

21

88 

75 

57

3.1 

3.9 

2.6

215 

176 

154

0 

0 

0

281 

240 

172

36 

22 

22

0.6 

.4 

.6

2.4 

2.6 

1.3

Temperature ("F) of water, water year October 1965 to Sept

Month

October .......

November ..... 

December .....

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

September .....

)

* >, 

40

76 

81 

64

2

58

64

7?

76 

80 

68

3 4

68 67 

72 7]

76 78 

78 80 

6*| 69

5

70

80 

79 

68

6

69

78 

80 

65

7

64

76 

79 

67

8

69

78 

78 

72

9

70

79 

78 

72

",0

-

"

70

79 

76 

74

1 1

-

-

55

70 

76

"

12

55

60

78 

75 

64

13

57 

66 

72

78 

70 

65

14

57

74

7<5 

64

^

62

73

;T63

Da)'

^16

73 

71

1 7

73 

11

18

-

"

"

55

75

71 

62

19 20

~~ ,'J 'J

"

54

75 

78 

64

75

79 

71 

63

21

-

75

76 

69 

64

2

-

55

75

76 

6

68
GREEN RIVER BASIN Continued

9-3150. GREEN RIVER AT GREEN RIVER, UTAH C

Specific conductance (micrpmhos at 25"C), water year Octobe

Day

6.....

12.....

17.....

19.....

26.....

30..... 

31.....

Average

October

873

972

_

November

962

-

_

December

922

-

978

January

889

-

97* 

961

February

878

-

-

-

877

_

March

853

774

April

762

7*1

686

M

 5

5
COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

9-3150. GREEN RIVER AT GREEN RIVER, UTAH Continued 

Suspended sediment, water year October 1965 to September 1966

i Suspended sediment Mean >-----

Day discharge

(cFs)

1..

2..

3..

4..

5..

46 10

4730

4730

Mean

concen-

|(ppm)

2500

3000

2700

4670 2000

4520 1400

b.. 4430 , 1100

7.. 3740 940

8.. 3520

9.., 3420

10..

11..

12..

13..

14..

3520

3310

3240

347C

3580

15.. 33SO

16.. 4630

620

440

360

320

290

250

220

180

_

17.. 4340 2400

IB.. 4430 IBOO

19., 580 14CC

20.. 550 1100

21.. 4CO , 900

22.. 370

23.. 280

24.. 370

25..

26..

27..

370

430

83C

760

680

610

540

4CO 480

28.. 610 42C

- ~- ~

Tons

day

Mean

discharge

(cFs)

31000 3210

38000

34000

25000

17000

3180

31PO

3160

Suspended sediment

(ppm) day

240

1 " ~~ 

2100

2001 170(1

150 1300

130| 1100

3130 , 110| 930

13COO 3310 99

8500 3420

5900 3440

4100 3180

3400

2900

2500

2300

2100

3210

3240

3?10

3080

3080

1600 ' 3110

f 4UCOO 3110

28000 3500

22COO

17000

14000

11000

9800

8800

4310

4550

4550

4190

5110

93

87

81

880

860

810

700

7b 660

71 620

66 570

75

84

93

110

620

700

700

9?0

140 1300

170

2JO

240

290

360

5570 450

8000 5400 , 540

7200 b470 620

2000

7AOO

2900

330Q

5000

6ROO

7900

9700

6500 , 5670 I 710 11000

5700

5200

29.. 110 380 4200

5710 800, 12000

5670 880, 13000

5080 970' 13000

30..! 290 34C| 3000 4670 

31.. _ 3110 ____ 290 2400 ____ -_= __

T°tal 127350

1..

2..

3..

970 12000

 - =<__ _ _ _ _

384100 120700 117250

JANUARY

2260 ISO

3160 240

3770 290

4.. 3850 310

5.. 3420

6.. ?9fiO

31C

290

7.. 2720 260

8.. 27CO 240

9..i 3200 ' 220

10.. 3290 200

II.. 1 337C 200

12.. 3390 200

13.. 3600

14..

15..

16..

17..

18..

19..

20..

21..

3440

200

200

3390 200

3470 200

3290 200

3210 19C

3030 180

2650 170

2420 160

22.. 2240 150

23..

24..

25..

26..

27..

28..

29..

30..

2440 140

2460 130

2440 130

2420 130

2280 130

2330

2460

2880

31.. 2850

91410

130

1200

2000

3COO

3700

FfcBRUARY

3130 190

3180 180

7980 160

7.700

2900 2800

2300 ' 2950

1900 3160

1700 2950

1900

1800

1800

150

ISO

1600

1500

1300

1100

1100

ISO 1 1200

150 1300

160, 1300

3130 160

3130 160

3180 150

1800 3110 130

1900 3080 ' 120

1900 3080 110

1800 3080 110

1400

1400

1300

1100

1000

910

910

1900 2980 i 110 R80

1800

1600

1500

1200

1000

910

920

2920 120 950

2650 120 860

7720 130 950

2480 130i 970

2560 130

2800

3000

860 3290

860 3180

850

800

820

130! 860

140

190

1100

1500

49580

3160

3110

3050

900

140 1100

160 1300

170 1500

190, 1600

200

230

250

-_ __

83540

1700

1900

2100

35030

Mean

discharge

(cF»)

4580

440O

4250

4050

4140

4160

4140

419O

4220

4430

4700

4830

5110

5080

4980

4600

4200

4200

4200

4700

4200

4400

4500

4100

3700

3400

3100

2530

7170

1920

_ _ -

12.5050

3520

3800

3660

3880

352(1

^370

3160

3110

3420

3960

4860

5940

8160

17100

12400

11?00

17700

13700

17600

11300

H890

6670

5580

230

020

950

560

240

210

300

4370

198330

Suspended sediment

 i

Mean _

concentration per (ppm) day

 ,

94O

830

6BO

530

380

12000

9900

7800

5SOO

4'00

790 3300

300 3400

360 4100

470

4PO

550

610

620

540

4SOO

5700

7000

BOOO

flf>00

74OO

460 6'00

410 510O

3<SO 4100

310, 3500

261, 79PO

720 '500

730 7600

250 3000

280 3400

300 3^00

330 3300

35O

340

280

190

3700

7800

1900

1100

140 730

142591

MARCH

250 2400

740 7500

230 7300

32O 7300

210 2000

700 1SOO

210 1100

280' 2400

3RO 3500

480 5100

990 13000

1900 30000

 5500 170000

10000

9000

5600

7300

R900

33000(1

300000

170000

250000

330000

9700 330000

9500 790000

9700

5300

3500

7700

2100

1800

770000

95000

53000

38000

28000

74000

1500 18000

1300 15000

1400 16000

1400

1500

160OO

1ROOO

2730100

E Estimated.
QUALITY OF SURFACE WATERS, 1966

GREEN RIVER BASIN Cont inued

9-3150. GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1965 to September 1966 Continued

IJay

APRIL MAY

Suspended sediment

Mean

discharge

 

Mean

concen-

(cfs) tratlon 

(ppm)

1

1..

2..

3..

4. .

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30,.

1..

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..

Total

4S50 1600

5830 1600

6310

6620

6820

17CO

1800

1900

6S90 1900

7820

7740

1900

1700

7110 1400

(=580 12CO

627C 93C

6310 830

6430 790

6120 760

6860

7230

790

810

6580 7BO

60EO

62CU

720

660

4350 6SO

6240 , 770

7230 , 820

77CO 770

7230 680

6540

62CO

840

1000

6010 760

5630 61C

5790

6540

750

900

 _

196 5.10 j_

3160 530

3260

3240

3100

1200

1200

920

3C30 720

2880

2720

7CC

690

26CO 460

2570 260

2400 190

2340 160

2290 160

22CO 240

2110

2030

2030

1960

1S80

2090

2070

390

 - Mean

Tons disper charge

day

21000

25000

29000

32000

35000

36000

40000

(cfs)

7740

8290

7440

6780

6540

Suspended sediment j

- i Mean

Mean Tons

concentration 

(ppm)

1100

1100

960

860

950

7860 1 1100

9070 1300

36000 9860

27000 10600

21000 10700

16COO 11200

14000

14000

13000

15000

16000

12300

13790

13300

13200

1500

day

23000

25000

19000

discharge

(cfs)

7820

7860

7860

16000 8030

17000 R080

23000 ' 7490

32000 7610

40000

1700 49000

2000 58000

2500

2900

2900

76000

7490

6660

6390

6080

96000 5720

110000 5260

2600 93000

2200

11300 1900

78000

5160

4790

58000 4790

14000 9470 1600' 41000 4790

12000 7860 1300 28000

11000 7230 960

12000

19000

4820

4620

8420 80O laOOO 4490

13000 8720

16000 8160

16000

13000

R460

8850

15000 8330

17000

12000

9600

770 18000 4490

770

770

780

17000 4300

1ROOO 4000

19000 3880

780 18000

8330 780

8980 ' 790

3910

18000 3650

19000 3650

9070 : 790 19000 3510

12000 8080 ' 800 17000 3480

16000 7530 800 16000 3350

7650 I 810J 170OO

|

578600 _y 285110 J. 1115002 __ L_ 164fliQ

I AUGUST 1

4500 2130

11000 2240

10000 2430

7700

5900

490 2800 3390

2100 13000 2500

4200

2500 5300

2430 6200

28000 3000

36000 2840

41000 2480

5400 2450 5900 39000 2270

5100 2770 4300, 32000

3200 2700 3900 28000

1800 2550

1200 2340

1000

S90

1400

2200

430| 2400

380

330

290

460

730

1980 590

2290 1600

2340 3200

2200 2800

2110 1500

2180

2200

2160

800

410

300

207C 320

2130

2070

73810

260

200

2100

2240

2160

4300 30000 2160

6900 44000

2340 9200

2310

2360

2450

5900

2000

960

2480 580

2450 470

2160

58000 2360

37000 2220

13000 2310

6400 2670

3900 2740

3100 2640

1700 2450 410 2700 2570

1600 2450 360 2400 2720

2600 2290 300 1800

4100 2220 240 1400

3200

9900

2130

2290

210 1200

210 1300

20000 2380 230

17000

8500

4700

2400

1700

1800

1500

2450 240

2360

2130

2310

230

190

160

2310 160

1500

1600

1500

UOO

2720

2820

2820

2840

2870

3130

3100

3000

1000 2920

1000 2950

2450 180 1200 2770

2500

1100 2200

180 1200

170

147690 I 73850

1000

437100

1980

JUNE

Suspended sediment

- 

Mean

concentration 

(ppm)

830

820

730

720

Tons

day

18000

17000

5000

6000

7RO 70OO

760

680

660

640

600

570

5000

4000

300O

2000

LOOOO

9400

580 9000

660 9400

7501 10000

680 88OO

510 6600

410 5300

540

920

1100

720

420

320

7000

11000

130OO

R700

4900

3500

29f> 3000

300 32OO

280 ?800

210 2100

150

130

140

1400

1200

1300

__ _

268600.

SEPTEMBER

17000, 160000

L3000 RROOO

9900 80000

2100 16000

1900 13000

910

730

550

470

460

420

5600

4400

3200

2700

2700

2700

440 2600

580 3600

720 5200

740 5500

700 5000

650

660

4500

480(1

660 4800

570 4300

480

400

300

3700

3100

2300

300 2500

360 3000

330 1 2700

260 2000

220

180

270

79350

TOTAL LOAD FOR YEAR ( TONS ).....................................................

1800

1300

1400

442400

....... 6448040
GREEN RIVER BASIN Continued 

9-3150. GREEN RIVER AT GREEN RIVER, UTAH Contin

determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Oct. 20. ...........

Sept. 13. ..........

Time 

(24 hour)

1130 

1715 

1430 

1315 

1430

1240 

1050 

1315 

1620 

1240

1600 

0815 

1310 

1310 

1210 

1210

Water 

temperature

(°F)

58 

56 

55 

47 

38

33 

33 

42 

37 

58

77 

78 

84 

73 

67 

68

Sampling 

point

Discharge 

(cfs)

4730 

4550 

4370 

3110 

5140

3290 

3080 

8650 

12300 

12200

4760 

2340 

2050 

2450 

4690 

2240

Sediment 

concentration 

(ppra)

3340 

974 

452 

103 

680

227 

120 

6960 

9540 

2950

430 

4590 

426 

445 

39900 

370

Sediment 

discharge 

(tons per day)

42600 

12000 

5330 

865 

9440

2020 

998 

162000 

317000 

97200

5530 

29000 

2360 

2940 

524000 

2240

Percen

0.002

65

20 

30

29 

26 

26

53 

50 

40 

38

0.004

73

25 

37

34 

30 

27

66 

71 

55 

40

0.008 
GREEN RIVER BASIN Continued

9-3285. SAN RAFAEL RIVER NEAR GREEN RIVER, UTA

LOCATION. Lat 38°52'20", long 110°22'20", at gaging station just downstream from bridge on State High

35 miles upstream from mouth.

DRAINAGE AREA (revised). 1,670 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: November 1946 to September 1949, November 1950 to September 19

Water temperatures: July to September 1949, October 1950 to September 1962, October 1964 to Septemb

Sediment records: March 1948 to September 1949, October 1950 to September 1959. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 4,850 ppm Aug. 4-31; minimum, 1,130 ppm Dec. 12, 13.

Hardness: Maximum, 1,870 ppm Aug. 4-31; minimum, 466 ppm Dec. 12, 13.

Specific conductance: Maximum daily, 5,720 micromhos Aug. 5; minimum daily, 1,350 micromhos Dec. 12

Water temperatures: Maximum, 85°F July 27; minimum, freezing point on many days during winter months

EXTREMES, 1948-49, 1950-66. Dissolved solids: Maximum, 5,680 ppm May 1-20, 1963; minimum, 487 ppm Ju

Hardness: Maximum, 2,280 ppm July 11, 13-18, 1954; minimum, 298 ppm June 21-30, 1957.

Specific conductance: Maximum daily, 7,230 micromhos July 15, 1954; minimum daily, 689 micromhos Ju

Water temperatures: Maximum (1949, 1950-61, 1965-66), 95°F July 11, 1954; minimum (1949, 1950-61, 1

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-15, 1965. . 

Oct. 16. .........

Jan. 1-2, 1966. . .

Jan. 16-27. ......

Mean 

discharge 

(cfs)

59. 5 

104 

68.1 

54. 8 

84.3

116 

132 

67. 8 

107 

144

70. 2 

56.8 

79. 0 

105 

91.0

85.0 

68.0 

60. 3 

54. 0 

34. 5

Silica 

(SiO,)

7.5 

8.8 

8.1 

8.6 

8.9

11 

8.6 

9.3 

7.6 

6.8

8.6 

9.6 

10 

7.7 

8.9

6.9 

7.9 

9.3 

7.5 

9.1

Iron 

(Fe)

Calcium 

(Ca)

224 

182 

240 

248 

281

160 

248 

259 

176 

126

216 

271 

248 

174 

176

172 

196 

196 

172 

208

Magnesium 

(Mg)

165 

89 

178 

202 

250

112 

199 

198 

42 

37

102 

51 

174 

103 

146

114 

135 

156 

109 

150

Sodium 

(Na)

479 

305 

542 

554 

775

429 

617 

603 

239 

170

466 

327 

450 

297 

458

279 

387 

394 

248 

394

Potassium 

(K)

Bicarbonate 

(HCOJ

269 

228 

295 

298 

364

272 

352 

352 

113 

107

174 

132 

374 

292 

158

252 

200 

244 

250 

248

Carbonate 

(COJ

0 

0 

0 

0 

0

0 

0 

0 

0 

0

7 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

1910 

1200 

2100 

2240 

2890

1450 

2310 

2300 

979 

700

1700 

1410 

1850 

1170 

1770

1200 

1590 

1650 

1130 

1650

Chloride 

(Cl)

51 

33 

57 

56 

76

43 

63 

62 

16 

14

35 

14 

57 

34 

45

35 

48 

50 

25 

52

Fluorlde

(P)

Nitrate 

(NO,)
Jan. 28, 1966. . . .

Julv 21-26. ......

31.0

129

78.1

45.8

42.3

178

41.4

8.4

7.4

14. 5

74.5

39.3

9.3 

8.6

6.9

8.0

7.4

7.4

6.4

7.8

6.4

6.2

7.1

13

8. 1

6.3

8.0

7. 5

7.6

9.3

9.0

14

13

196 

204

194

219

208

145

163

223

244

208

232

204

200

228

257

297

345

345

349

289

175 

158

114

142

134

91

71

102

150

156

167

187

136

180

197

207

209

204

219

199

83

100

408 

365

316

357

413

347

378

265

232

167

277

428

421

481

443

343

444

466

500

516

728

774

695

775

371

307

304 

336

296

304

346

299

278

308

282

283

296

292

299

278

311

290

298

258

272

273

350

320

280

256

180

0 00000000000000000000000001700 

1540

1370

1610

1530

910

688

1100

1720

1740

1940

1870

1510

1830

1910

2120

2210

2710

2940

2760

2920

1670

1510

55 

51

39

48

39

35

29

27

35

50

52

56

55

41

52

64

62

70

84

96

96

68

48

55
GREEN RIVER BASIN Continued

9-3285. SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Co

lical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

July 27-31, 1966.

Sept. 1-30. ......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge 

(cfs)

12.2 

28.5 

36.0 

6.6 

29. 1

59.5

--

Silica 

(SIC,)

10

11

9.6 

11 

9.3

8.4

8.6

1.3

Iron 

(Fe)

Calcium 

(Ca)

325 

325 

341 

457 

401

223

256

36

Magnesium 

(Mg)

153 

161 

68 

178 

190

142

158

23

Sodium

(Na)

561 

549 

247 

790 

590

421

479

68

Potassium 

(K)

Bicarbonate 

(HCO,)

262 

242 

252 

296 

316

280

280

45

Carbonate 

(CO,)

0 

0 

0 

0 

0

_

-

Sulfate 

(SO,)

2260 

2280 

1370 

3100 

2560

1690

1940

272

Chloride 

(Cl)

65 

64 

25 

83 

98

48

57

7.8

Fluoride 

(F)

Nitrate 

(NO

Analyses of additional samples

Nov. 26, 1965....

Mar. 17, 1966....

June 29 ..........

194

161

L 6.8

7.9

7.0

7.4

242

211

277

161

114

226

531

386

563

8.5

6.6

12

324

297

274

0

0

0

2090

1510

2400

60

42

76

1.0

.6

.6

3.1

2.3

.1

Temperature (°F) of water, water year October 1965 to Sep

November ..... 

December .....

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

1

47 

33

UU

2

52 

33

3

55

4 5

46

6

47 

34

7

32

8

45 

35

9

48

10

35

11

43 

38

12

42

40

13

47 

35

14

35

15

47

Day

16

48 

40

17

46 

32

40

18

47 

33

4?

19

46 

32

20

44 

32

21

32

44
GREEN RIVER BASIN Continued

9-3285. SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Cont

Specific conductance (micromhos at 25°C), water year October 1965 

Day

1.....

3.....

5.....

6. ....

9.....

10.....

15..... 

16.....

18.....

23.....

25.....

30..... 

31.....

Average

October

3360

"

3290 

3*30

3620

358C 

2420

3440

384C

November

4010

3980

4100 

4140

3<><50

4130 

4140

4130

3000

4350

December

4300

2010

1930

2910

3240

2430

2440 

3180

January

3020

3480

3140

3020

2910

February

?750

-

2650 

2580

2630 

?410

2800

2810

24BO

2360

March

3340

?730 

2MO

2960 

2880

2880

3030

3060

2760 

2410

April

2300

IfUO 

1650

2S80

2350

2200

3610

May

3S70

3190

3860 

1590

3520

3S40

 

3500
SAN JUAN RIVER BASIN

9-3529. VALLECITO CREEK NEAR BAYFIELD, CO

(Hydrologic bench-mark station)

LOCATION.--Lat 37°28'45", long 107°32'35", at gaging station, 60 feet upstream from Fall Creek, 0.7 

Dam, and 18 miles north of Bayfield, La Plata County. 

DRAINAGE AREA. 72.1 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1963- to September 1966.

Water temperatures: November 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 59°F July 27; minimum, freezing point on many days 

EXTREMES, 1962-66. Water temperatures: Maximum, 62°F July 21, 1963; minimum, freezing point on man

Chem al analyses, in parts per million, water year October 1

Date 

of 

collection

Discharge 

(cfs)

134 

53.0 

34.2 

31.8

21.0 

110 

192 

549 

379

165 

160 

50.9

Silica 

(SiO,)

2.7

3.7

"

Iron 

(Fe)

Calcium

(Ca)

7.2 

8.8

"

Magnesium

(MB)

2.2

2.2

Sodium

(Na)

0.6

1.1

-

Potassium 

(K)

0.7 

.2

"

Bicarbonate 

(HCO,)

24 

31 

35 

27 

38

40 

29 

26 

25 

22

19 

23 

26

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

Sulfate 

(SO.)

7.2

7.4

-

"

Chloride 

(Cl)

0.4

2.1 

.6

1.3

Fluoride

(F)

0.2

"

.3

N

tra

(N

0
COLORADO RIVER BASIN
SAN JUAN RIVER BASIN Continued 

9-3529. VALLECITO CREEK NEAR BAYFIELD, COLO. Con

Periodic determinations of suspended-sediment discharge, water years Oc

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Aug. 30.............

Time 

(24 hour)

1110 

1245 

1200 

1010 

1200

1130 

1000 

1010 

1720 

1035

1025 

1345 

1000 

1330 

1130

1330 

1250 

1300 

1350 

1030

1245 

1245 

1020 

1000 

1230

Water 

temperature

(°F)

42 

34 

32 

32 

32

32 

34 

36 

45 

45

47 

50 

39 

38 

32

32 

32 

34 

37 

37

42 

46 

48 

51

Sampling 

point

Discharge 

(cfs)

79 

19 

11 

22 

20

17 

33 

508 

1040 

472

134 

102 

134 

52.4 

34.0

31.7 

19.6 

21.0 

110 

192

549 

381 

165 

160 

46.9

Sediment 

concentration 

(ppm)

2

1 

3 

2

1

1 

2 

5 

35 

6

1 

0 

0 

1 

2

O 

0 

1 

3 

6

3 

2 

2 

2 

1

Sediment 

discharge 

(tons per day)

0.

T 

.2 

6.8 

98 

7.6

.4 

0 

0 

.1 

.2

O 

0 

.1 

.9 

3

4 

2 

.9 

.9 

.1

Perc

0.002 0.004 0.00

T Less than 0.05 ton.
SAN JUAN RIVER BASIN Continued

9-3555. SAN JUAN RIVER NEAR ARCHULETA, N. MEX

(Irrigation network station)

LOCATION (revised). Lat 36°48'10", long 107°41'55", at gaging station at river mile 136.8, 0.5 mile u

Archuleta, San Juan County, and 7.2 miles downstream from Navajo Dam. 

DRAINAGE AREA. 3,260 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1954 to September 1966.

Water temperatures: December 1954 to September 1966.

Sediment records: December 1954 to September 1965. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 231 ppm Dec. 18; minimum, 95 ppro Oct. 1-31.

Hardness: Maximum, 117 ppm Mar. 1-31; minimum, 60 ppm Oct. 1-31.

Specific conductance: Maximum daily, 390 micromhos Dec. 18; minimum daily, 141 micromhos Oct

Water temperatures: Maximum, 74°F July 19; minimum, 36°F Jan. 29, 30, Feb. 14, 24. 

EXTREMES, 1954-66. Dissolved solids (1956-66): Maximum, 472 ppm Jan. 5, 1960; minimum, 85 ppm

Hardness (1956-66): Maximum, 250 ppm Sept. 19, 1961; minimum, 40 ppm July 1-11, 1957.

Specific conductance: Maximum daily, 685 micromhos Jan. 5, 1960; minimum daily, 101 micromhos July 

Water temperatures: Maximum, 79°F Aug. 19, 1955; minimum, freezing point on many days during winter 

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K).

11, 1

June 1

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-31, 1965...

Jan. 1-31, 1966...

Sept. 7-30. .......

Weighted 

average. ......

Time-weighted 

average. ......

Tons per day. . . .

Mean 

discharge 

(cfs)

2130 

3020 

2960 

761 

2950 

2730 

1680 

1860 

3040 

2100

620 

451 

433 

456 

455 

439 

500 

489 

531 

434

_

1770

"

Silica

(sicg

14

13 

14

L3

_

._

-

Iron 

(Fe)

0.06

.01 

.04

.04

_

..

-

Calcium 

(Ca)

20 

24 

25 

34 

26 

29 

34 

36 

34 

34

26 

35 

22 

19 

20 

33 

19 

34 

31 

20

29

27

L37

Magnesium 

(Mg)

2.4 

2. 9 

4.7 

5.4 

5.1 

4.7 

5.1 

6. 6 

7. 5 

5.6

3. 6 

6.0 

2.7 

4.0 

3.2 

5.7 

3.8 

5.6 

6.4 

2.9

4.9

4.6

23

Sodium 

(Na)

7.3 

9.1 

11 

42 

11 

12 

16 

20 

17 

16

17 

19 

11 

12 

11 

18 

10 

18 

17 

9.6

13

13

63

Potassium 

(K)

1. 5

1. 9 

1.3

1.9

_

-

Bicarbonate 

(HCO,)

62 

116 

80 

100 

82 

86 

96 

100 

100 

96

74 

98 

68 

68 

66 

94 

66 

94 

91 

65

91

86

436

Carbonate

(cog

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

_

 .

-

Sulfate 

(S04 )

23

69 

33

29

_

__

--

Chloride 

(Cl)

1.2

4.8 

2.2

1.7

_

Fluoride

(F)

0.2

.3 

.2

.2

_

__

Nitrate 

(NO,)

0. 6

. 9 

.6

.8

_
SAN JUAN RIVER BASIN Continued

9-3555. SAN JUAN RIVER NEAR ARCHULETA, N. MEX. Conti

Specific conductance (micromhos at 25"C), water year October 1965 

Day

6.....

9.... .

12.....

14..... 

15.....

16.....

21.....

27 .....

31.....

Average

October

149

147

143

144

141 

142

145

~_l

November

1P3

181

193

191 

192

185

190

202

191

December

213

210

213

213 

212

212

227

220

222

221

January

228

228

232

?35 

210

240

250

253

258

239

February

292

283

281

292

290

290

290

319 

328

292

March

318

328

338

334 

335

314

322

319

322

325

April

321

322

315

306 

306

306

302

294

-

30B

May

280

260

312

293 

291

286

789

291

287

280

280

287L 
Temperature (°F) of water, water year October 1965 to Sep

Month

November ..... 

December .....

January........ 

February. ......

April.......... 

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

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

September .....

Day

1

53 

53 

52

37 

45

40 

47 

60

59 

57 

63

2

51 

52

39 

39

45 

47 

54

60 

62

50

3

53 

51 

51

41 

40

45 

48 

53

60 

57 

50

4

54 

52

50

38 

41

40 

48 

51

60 

57

50

5

52 

51

38 

42

41 

53 

49

60 

57 

50

6

53 

52 

49

39 

38

40 

54 

48

57 

58

7

52 

52 

48

39 

38

41 

55 

50

60 

56 

62

8

57 

55 

49

39 

38

42 

49

50

60 

56 

55

9

57 

54 

50

39

37

43 

51 

51

60 

53 

62

10

54 

52

50

37 

37

44 

54 

49

60 

51 

54

11

57 

52

50

39 

37

43 

53 

58

59

50 

61

12

52 

52

50

37 

37

44 

51 

58

58 

51 

50

13

52 

48

37 

37

50 

49 

59

59 

52

50

14

58 

52 

48

36

37

51 

48 

53

58 

53 

50

15

£48

41 

38

47

53

65 

55

50

16

52 

48

42

48

60

64 

57 

60

17

59 

54 

47

43

47 

52

67 

69 

59

18

55 

46

43

46

53

66 

68 

65

19

58 

55 

48

43

41 

54

74 

67 

51

20

52 

47

40

41 

60

60 

51 

64

21

58 

52

47

43 

37

41 

65

59 

65 

65

5

4

4

4

4

6

6

6

5

9-3573. SAN JUAN RIVER ABOVE ANIMAS RIVER, AT FARMINGT

LOCATION. Lat 36°43'10", long 108°12'45", at river mile 99, 100 feet upstream from mouth of Animas R

DRAINAGE AREA. 5,800 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1963 to September 1966.

REMARKS. Mean discharges are calculated from the streamflow records of the San Juan River at Farmingt

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 11, 1965....

Jan. 19, 1966....

Aug. 31. .........

Mean 

discharge 

(cfs)

2090 

3250 

2880 

1260 

2790

2790 

520 

254 

441

Silica 

(SiO2)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOS)

70 

86 

72 

116 

108

98 

133 

108 

112

Carbonate

(ccg

0 

0 

12 

0 

0

0 

0 

0 

0

Sulfate 

(S04 )

Chloride 

(Cl)

1.4 

2.4 

3.1 

4.9 

4.1

2.9 

5.4 

3.2 

4.5

Fluoride 

(F)

Nitrate

(NO
SAN JUAN RIVER BASIN Continued

9-3645. ANIMAS RIVER AT FARMINGTON, N. HEX

LOCATION. Lat 36°43'20", long 108°12'00", at gaging station at bridge on former State Highway 17, 0

of Farmington, San Juan County, and 1.3 miles upstream from mouth. 

DRAINAGE AREA. 1,360 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: June 1940 to September 1966.

Water temperatures: December 1950 to September 1966.

Sediment records: December 1950 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 660 ppm Dec. 10; minimum, 157 ppm May 6-11.

Hardness: Maximum, 326 ppm Sept. 1-30; minimum, 114 ppm June 1-7.

Specific conductance: Maximum daily, 956 mlcromhos Aug. 13; minimum daily, 245 micromhos May 10.

Water temperatures: Maximum, 90°F Aug. 26; minimum, 33°F on several days during January.

Sediment concentrations: Maximum daily, not determined; minimum daily, 4 ppm Aug. 11.

Sediment loads: Maximum daily, (estimated) 20,000 tons Aug. 3; minimum daily, 2 tons Aug. 11. 

EXTREMES, 1940-66. Dissolved solids (1940-49, 1952-54, 1956-66): Maximum, 1,500 ppm Aug. 19, 1949; 

Hardness (1956-66): Maximum, 608 ppm July 30, 1961; minimum, 80 ppm July 1-7, 1957.

Specific conductance (1941-66): Maximum daily, 1,980 micromhos Aug. 19, 1944; minimum daily, 170 m

Water temperatures (1950-66): Maximum, 90°F Aug. 26, 1966; minimum, freezing point on many days du

Sediment concentrations (1950-66): Maximum daily, 36,100 ppm July 23, 1954; minimum daily, 1 ppm o

Sediment loads (1950-66): Maximum daily, 337,000 tons July 23, 1954; minimum daily, less than 0.50 

1957, July and September 1959, August and September 1960, August 1963. 

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K)

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-31, 1965.. 

Nov. 1-24........

Nov. 25. .........

Dec. 1-9. ........

Jan. 1-31, 1966.. 

Feb. 1-28. .......

May 1-5. .........

July 1-9. ........

Mean 

discharge 

(cfs)

703 

474 

615 

523 

400

467 

417 

385 

332 

272

851 

973 

1790 

3160 

1840

2460 

2570 

1650 

1170 

851

Silica 

(Si02)

8. 8 

9.4

6.4

Iron 

(Fe)

0.01 

.00

.00

Calcium 

(Ca)

67 

81 

105 

87 

89

103 

89 

91 

97 

96

67 

59 

48 

40 

24

38 

37 

41 

48 

56

Magnesium 

(Mg)

10 

12

14 

14 

14

14 

14 

14 

14 

16

11 

9.5 

7.3 

3.9 

21

5.1 

5.2 

5.7 

7.3 

8.9

Sodium 

(Na)

23 

27 

76 

38 

31

72 

36 

32 

35 

38

25 

14 

10 

6.2 

13

8.2 

8.6 

12 

16 

21

Potassium 

(K)

2. 1 

3.3

1.8

Bicarbonate 

(HCO,)

138 

164 

168 

178 

156

180 

182 

188 

190 

191

166 

143 

118 

100 

116

94 

90 

92 

108 

126

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

119 

190

83

Chloride 

(CD

12 

26

8.4

Fluoride 

(F)

0.4 

.4

.3

Nitrat

(NO

0. 

.

.
July 10-31, 1966.

Sept. 1-30.......

Weighted 

average. .....

Time-weighted 

average. .....

Tons per day. . .

353 

349

554

302

155

747

~

_

_

_

8.8

~

~

_

_

_

.01

71 

72

96

70

98

102

58

75

118

15 

14

14

20

18

17

9.9

12

20

32 

31

37

50

57

20

29

39

~

_

_

_

6.4

160 

164

176

164

202

133

159

269

0 

0

0

0

"

~

_

_

_

228

_

_

3.1

_

_

_

.5

--

_

_

_

.3

Temperature (°F) of water, water year October 1965 to Sept

October .......

November ..... 

December .....

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

September .....

1

57

56 

41

35

38

42

57

60

61

70

82

70

2

6?

55 

41

34

38

41

55

61

61

65

78

71

3

61

54 

42

33

38

39

50

52

60

78

72

4

45 

40

34

37

40

50

52

60

75

78

71

5

60

42 

34

40

42

50

51

 

75

78

70

6

60

44 

35

40

45

53

51

61

77

77

70

7

60

52 

43

36

41

50

56

60

59

78

77

74

8

60

52

44

35

38

49

52

52

61

77

80

74

9

54

53 

43

39

37

50

54

52

60

70

77

75

10

56

50 

45

37

37

50

52

52

64

78

78

70

11

60

50 

43

37

38

52

54

55

66

78

78

68

12

60

48 

45

37

37

49

55

57

65

80

79

72

13

60

55 

41

37

38

48

56

57

63

77

79

73

14

60

48 

41

37

38

52

58

56

65

80

78

73

15

_

50 

38

34

36

51

61

64

78

78

72

Day

16

_

49 

39

35

37

45

_

63

66

72

80

70

17

_

49 

38

37

37

52

56

62

68

81

69

18

50

49 

39

33

40

40

53

61

68

79

70

19

55

50 

36

35

50

47

53

71

78

69

20

55

50 

35

37

44

51

50

52

66

81

75

72

21

55

50 

34

34

45

51

54

70

80

79

74

2

53

46

35

33

46

47

55

59

70

80

71

74
SAN JUAN RIVER BASIN Continued

9-3645. ANIMAS RIVER AT FARMINGTON, N, MEX. Conti

conductance (micromhos at 25°C), water year October 19

Day

1.....

3.....

4.. ...

6..... 

7.....

in.....

12..... 

13.....

14..... 

15.....

16.....

18..... 

19.....

21.. ... 

22.....

23.....

26..... 

27.....

29..... 

30..... 

31.....

Average

October

407

455

516 

522

609 

5*1

529

521

502 

500

506 

521 

531

499

November

538

-

595 

617

630 

638

636 

643

706

694

63ft

681 

688

630

December

645

658

638 

640

663

788

686 

696

690

675

January

767

666

662 

669

712

688 

679

664 

654

672

February

70?

753

71fl 

730

72?

712

709 

708

~

713

March

7^0

720

50]

524 

4«1

505

491 

553

 551

547

481 

431

566

April

351 

351

416

409

469

396 

393

441

468

432

419

May

?51 

324

7RO

305

3R5

341 

311

770

254

778

300
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued

9-3645. ANIMAS RIVER AT FARMINGTON, N. MEX. Continued 

Suspended sediment, water year October 1965 to September 1966

OCTOBER NOVEMBER |j

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

 -

Total

_

1..

2..

3..

4..

5..

6..

7..

8..

9«.

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

 

Total

Suspen

Mean

dis- i Mean

charge concen-

< Cf" ITp^)

10OO 340

900 360

858 410

825 390

815 330

775 460

745 1 470

690 410

640 300

625 1 240

620 250

615 270

600 230

605 230

600 220

595 230

665 280

800 490

775 820

710

690

685

380

150

89

690 200

665 170

675 i 150

680

670

160

170

670 180

650 1 72

630 47

615 41

 - - 

21778 :

1 JANUARY

434

410

371

398

335

390

250

180

140

120

371 180

398

425

428

419

407

413

240

250

200

180

140

140

410 130

395 120

389 160

401 1 120

386 i 110

371 ; 62

335 j 82

425 250

410 170

353

317

362

353

335

347

377

374

389

401

11939

120

150

130

100

150

150

140

160

170

200

--

ded sediment Suspended sediment ,'

1 Mean

per

day

disf - - - - --, Mean

Mea" ' Tons

Chal" ge Trado""

(cfs) tratl°" 

(ppm)

per

discharge

day (cf«)

920 |[ 590 54 86 404

870 1 590 50 1 80 i 404

950 ! 575 70 ' 110 401

870 565 91 140 395

730 540

960 ; 530

940 i 530

110 160 401

130 190 401

120 170 401

760 515 110 150 ! 398

520 495 95 , 130 398

400 500 38

420

450

490 70

51 467

93 ' 506

448 120 1 140 , 437

370 430 48 56 413

i 380 424 50 57 i 416

B 360 400 ,45 49 [ 425

B 370 418 82 92 i 431

B 500 418 80

1000 418 31

1700 400 ' 44

730 370 ' 40

B 90 ] 425

35 ' 416

48 398

40 383

280 | 358 ; 120 120 377

160 | 370 i 130 130 392

370 i| 466 190 . 240 | 473

300 i 530 3200 I 4600 440

270 615 4400 ,S 7800 407

290 765

310 560

320 472

7300 ' 15000 383

1800

350

130 418 170

80 401 180

68 4-

2700 ! 365

450 371

190 li 386

190 440

482

16778 | 14601 ^ j 33385 I 12836

460

280

180

150

110

180

FEBRUARY

389

356

353

344

356

353

180 | 190 ' 290

140 130 296

140 i 130 284

100 | 93 254

1401 130

160

260 | 359 ' 140

290

230

200

150

160

140

362 130

356

335

314

305

335

130 , 335

130

100

110

130

98

90

170 323 80

130

110

62

74

290

190

110

130

130

95

140

140

140

160

180

220

5391

150

140

130

120

90

93

110

89

81

70

242

251

290

608

732

783

789

891

891

925

1020

317 72 62 993

308 ' 86

308 | 90

323 1 70

323 52

320

320

326

326

320

335

314

90

63

94

71 950

74

B 60

"

835

775

800

78 81S

54 810

83 745

120 100 715

94 ' 81 730

97 1 88 770

97 i 82

290 82 I 64

__ ' __

800

876

980

1040

__ ~_J ____ ~, " 1 1U °

9305 2691 | 23320

DECEMBER

Suspen

j ~

Mean

tration

(ppm)

210

160

200

170

130

130

180

140

120

2100

3100

1100

390

280

140

130

150

78

130

150

150

110

600

330

150

120

130

140

130

340

710

, _ - -

--

MARCH

120

120

120

120

100

70

98

3400

4000

4400

3700

4000

3700

3100

5600

4400

2700

900

600

800

980

1100

600

420

440

500

620

790

1200

1400 ~ 1500~

ded sediment

Tons

per

day

230

170

220

180

140

140

190

150

130

2600

4200

1300

430

1 310

160

150

170

88

140

160

150

120

770

390

B 160

120

130

140

140

400

B 920

 _

14698

94

96

92

82

65

47

77

S 6100

S 8300

S 10000

S 8100

S 9700

S 9000

S 7800

S 15000

S 12000

6900

2000

1200

1700

2200

2400

1200

810

870

1000

1300

1900

3200

3900

4600

121733

S Computed by subdividing day.

B computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

SAN JUAN RIVER BASIN Continued

9-3645. ANIMAS RIVER AT FARMINGTON, N. HEX. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

APRIL

Day

Suspended sediment

Mean t

dis- Mean

charge concen-

: (ppm)

1 » ! 1240 1700

.

.

1260

1270

. 1200

. 1080

1500

730

910

1100

.. 1000 980

..

,.

,.

955 1200

930

940

800

600

10.. 955 600

11.. 1000 , 550

12..

13..

14..

990 550

925 i 500

835 1 400

15.. 785 250

16.. 805 220

17.. 925

18.. 1030

19.. 1080

20.. 945

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

540

440

780

660

882 370

852

870

805

350

420

370

785 250

815 250

910 380

1010 700

1100 540

1010 520

Total: 29189 |

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

JULY

1260

1200

1000

880

780

r 110

100

80

50

45

708 48

650 43

650 24

530 ! 25

490 42

11.. ' 402 28

12.. 482 33

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

482 38

358

322

256

256

28

15

24

22

346 21

358 32

402

346

434

490

402

418

378

277

235

185

235

220

15432

24

28

45

45

40

24

15

8

8

15

84

120

Total discharge for yea

Tons

MAY

Mean

discharge

day (cfs)

h-- - - 

5700 1 1310

5100

2500

2900

3200

2600

1440

1800

2080

2310

2600

3100 3040

2000 3340

1500

1500

1500

3500

3480

Suspended sediment

_ _ _ 

Mean Ton*

concentration

(ppm) day

[

750

780

720

JUNE

Mean

discharge

(cfs)

2600 i 2820

3000 2730

3500

1300 7300

2730

2670

1100 ' 6900 2560

1200

940

1100

1300

860

2970 ! 930

1500 2430 420

1200 2190 ! 210

900 1720 I 230

530

B 480

1530

8400 2370

7700

9900

12000

8100

2080

1800

1680

1650

7400 1620

2800 1620

1200 i 1830

1100 ! 1940

200 B 830 1940

1460 200 790 1740

1300 1530 > 190 780 1490

1200 1710

2300 2130

1700

880

2420

2740

190 880

250 1400

310 2000

340

800 2730 ' 260

990 2560 240

B 800 2670

1430

1430

1430

B 2500 1470

1900 1320

1600 1, 1320

270 1900 1290

530 2790 230 1700 1100

550 2600 200

930 2370 180

1900

1600

1400

2140 150

1400 1060

1200

870

1100

1080

1880 120 B 610 ! 1120

2070 170 B 950 ' 1100

2550 210 1400

53090 [_ 72090 104610 51520

AUGUST

370 358

320 ' 340

B 220 554

120

95

92

75

42

618

394

322

280

236

130 120

 

Suspended sediment

 y 

Mean _

tration .

(ppm) i ay

190

190

170

110

95

94

1400

1400

1200

790

B 660

600

90 500

70 340

85

82

82

89

380

360

B 360

390

110 540

150 780

120 630

65 300

45 180

45 170

62 'B 240

60

48

45

52

60

45

50

54

230

190

160

180

210

130

140

160

44 130

45 140

83 i 250

13140

SEPTEMBER

193

E 200 190

E 20000 180

E 15000 180

 E 2000

300 260

100 76

66 42

36 202 45

56 195 20

30 173

43

49

27

159

4

15

170

170

160

155

24 148

10 125

2

6

143

166

156 E 200 , 149

150 130 53 ' 142

13 150 62

16 148

15

20

31

26

26

53

60

43

27

15

6

5

7

53

71

2062

159

200

168

160

40

25 166

16 199

E 1500 213

E 1500

E 250

290 120

159 200

166

169

171

171

150

136

122

114

109

177

6772

110

54

82

98

82

72

67

66

62

680

86

49

25

38

45

31

26

22

20

18

S 360

42124

195

179

168

165

153

135

125

127

120

115

114

110

107

~

4662

Total load for year (tons) .....................................................

650

152

78

340

78

38

54 26

48 22

37

46

42

43

58

17

20

18

17

20

88 34

82 37

230 92

160 61

240 JS 120

320 B 170

210 120

120 63

78

32

21

18

15

38

14

9

7

5

22 7

21

19

50

28

15

B 7

6

16

9

4

14 i 4

~

1419

....... 411121

E Estimated.

S Computed by subdividing day.

B Computed from estimated-concentration graph.
SAN JUAN RIVER BASIN Continued 

9-3645. ANIMAS RIVER AT FARMINGTON, N. MEX. Co

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

_____________________P, plpet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 26.. .........

Time 

(24 hour)

1600 

1645 

1600 

1700 

1700 

1130

Water 

temperature

(°F)

55 

42 

50 

57 

82 

75

Sampling 

point

Discharge

(cfs)

775 

765 

783 

1240 

358 

160

Sediment 

concentration 

(ppm)

794 

6330 

3580 

1660 

95 

295

Sediment 

discharge 

(tons per day)

1660 

13070 

7570 

5560 

91.8 

127

Perc

0.002

42 

47 

50 

14 

55 

55

0.004

62 

64 

62 

18 

68 

74

0.00
SAN JUAN RIVER BASIN Continued

9-3650. SAN JUAN RIVER AT FARMINGTON, N. H

LOCATION. Lat 36°43'25", long 108°13'30", at gaging station 360 feet downstream from highway bridge

Farmington, San Juan County.

DRAINAGE AREA. 7,240 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: May 1962 to September 1966.

Water temperatures: June 1962 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,340 ppm July 21; minimum, 161 ppm Oct. 3-17, Nov. 

Hardness: Maximum, 464 ppm July 21; minimum, 96 ppm Oct. 3-17.

Specific conductance: Maximum daily, 1,840 micromhos July 21; minimum daily, 251 micromhos Nov. 9

Water temperatures: Maximum, 84°F July 25; minimum, 35"F Jan. 18, 21, 22, 24, 26. 

EXTREMES, 1962-66. Dissolved solids: Maximum, 1,340 ppm July 21, 1966; minimum, 103 ppm May 11-15, 

Hardness: Maximum, 464 ppm July 21, 1966; minimum, 65 ppm May 11-15, 1962.

Specific conductance: Maximum daily, 1,840 micromhos July 21, 1966; minimum daily, 154 micromhos M

Water temperatures: Maximum, 90°F July 6, 1963; minimum, freezing point on several days during De

REMARKS. Chemical analyses are composites of samples from right and left banks. Values reported fo

potassium (K).

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 1-2, 1965...

Oct. 18... .......

Jan. 1-31, 1966..

Feb. 23-28.......

Mar. 1-7.. .......

July 1-20. .......

Mean 

discharge

(cfs)

1460 

2700 

3120 

3060 

3530

3620 

3460 

3420 

3650 

3480

1690 

3200 

3800 

3460 

3180

2150 

1640 

1590 

2490 

2950

3890 

4250 

2340 

1400 

854

Silica 

(S1O2)

9. 6 

13 

15 

13 

13

13 

13 

13 

14 

13

12 

13 

13 

13 

13

13 

13 

14 

14 

11

10 

8.9 

6.1 

7.7 

11

Iron

(Fe)

Calcium 

(Ca)

56 

31 

34 

33 

30

37 

32 

33 

42 

34

61 

35 

38 

36 

33

40 

46 

43 

63 

46

37 

39 

43 

52 

63

Magnesium 

(Mg)

8.1 

4.5 

3.6 

5.0 

5.1

5.7 

5.1 

4.7 

5.6 

5.4

11 

5.0 

5.1 

5.4 

8.6

11 

12 

13 

16 

13

12 

7.9 

6.9 

7.4 

9.5

Sodium 

(Na)

26 

15 

46 

16 

15

29

17 

18 

41 

20

33 

17 

58 

21 

19

25 

38 

30 

95 

27

20 

15 

16 

24 

37

Potassium 

(K)

3.0

Blcarbonate 

(HCOj)

118 

80 

132 

86 

90

104 

96 

94 

112 

94

132 

92 

118 

96 

98

112 

126 

120 

180 

132

114 

108 

98 

110 

134

Carbonate 

(COJ

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

114 

55 

103 

59 

50

87 

56 

58 

109 

64

133 

59 

126 

69 

68

98 

130 

116 

247 

99

80 

66 

73 

101 

136

Chloride 

(Cl)

7. 6 

3.1 

4. 6 

3.7 

3.1

5.5 

3.3 

3. 4 

5.9 

3.9

10 

4.1 

6.8 

4. 4 

4.8

6.6 

7.6 

7.4 

8.0 

7.8

4.8 

4.8 

6.8 

8.6 

12

Fluorlde 

(F)

N

tra

(N

1

1

1

1

1

1

1

1
July 21, 1966. . . .

Sept. 13-30. .....

Weighted 

average. .....

Time-weighted 

average. .....

Tons per day. . .

863 

855

858

517

620

484

458

552

452

2470

24

17

18

11

17

13

16

13

14

14

14

14

11

12

76

148 

76

97

73

71

99

68

67

63

78

79

58

39

46

263

23

9.7

10

7. 5

8.0

9.1

10

9.1

8.3

8.7

56

269 

107

164

65

41

95

49

91

46

52

66

59

46

23

30

151

~_

4.2________

2.6

.._

338 

216

268

159

197

149

209

140

136

168

176

124

107

116

717

0000000000000

.__

._"

691 

269

388

189

149

306

166

324

160

168

216

198

160

82

104

546

18 

14

14

15

16

12

9.2

7. 6

13

13

8.9

5.4

6.8

36

.

.

.

1.

. 

.

. 

.

.

.

.

.

.

0.

0.

5.
SAN JUAN RIVER BASIN Continued

9-3650. SAN JUAN RIVER AT FARMINGTON, N. HEX. Cont

Specific conductance (micromhos at 25°C), water year October 19

Day

?...... 

3.....

5.. ...

6.. ...

11.. ...

12.. ...

15.....

16.. ... 

17.....

18.. ... 

19.. ...

26.....

28.....

30.. .. . 

31.. ...

Average

October

474 

264

262 

261

288 

267

252

?52

400 

308

279

277

276 

279

289

November

256 

?53

258 

251

252

291

252 

255

253 

258

409

277

273

274

December

286 

281

?84 

2S1

281 

286

303

29R

301 

292

512 

297

304

359

315

January

310 

304

301 

305

378 

325

317

311

314 

316

313 

311

'23

323

325

332

318

February

335 

387

392

423 

412

400

407

390 

405

478

457

417

March

479 

453

444

977 

811

500

73

62

41

45

398

372

370

491

April

3M

365

370 

372

^63 

361

358 

361

361

354

34«

362

May

340

 »17

2R3 

27"

^79

339

?98

3?7

'2?
SAN JUAN RIVER BASIN Continued

9-3650. SAN JUAN RIVER AT FARMINGTON, N. MEX. Co

Temperature (°F) of water, water year October 1965 to 

November ..... 

December .....

March

April ..........

June ..........

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

September .....

1

58 

45

71

2

58 

46

71

3

56 

46

72

4

47 

46

72

5

47

72

6

45

70

7

55 

47

50

74

8

52 

47

75

9

55 

47

52

76

10

54 

47

70

11

52 

46

so

69

12

50 

47

74

13

55 

45

78

74

14

51 

45

52

69

15

53 

42

52

73

Day

16

50 

43

70

17

52 

40

69

18

Cq

51 

38

70

19

52 

45

69

20

52 

37

73

2

5

3

7

7
SAN JUAN RIVER BASIN Continued

9-3680. SAN JUAN RIVER AT SHIPROCK, N. MEX.

LOCATION. Lat 36°47'35", long 108°43'55", at gaging station

DRAINAGE AREA.--12,900 square miles, approximately.

RECORDS AVAILABLE.--Chemical analyses: February 1941 to Sept

Water temperatures: December 1950 to September 1966.

Sediment records: December 1950 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,210 ppm July 30, 31; minimu

Hardness: Maximum, 490 ppm Aug. 24; minimum, 134 ppm Nov. 1-22.

Specific conductance: Maximum daily, 1,900 micromhos July 30; minimum daily, 329

Water temperatures: Maximum, 84°F July 12-14, 19, 28; minimum, 35°F Mar. 4, 5.

Sediment concentrations: Maximum daily, 61,300 ppm July 30; minimum daily, 54 ppm Ju

Sediment loads: Maximum daily, 346,000 tons July 30; minimum daily, 160 tons July 18. 

EXTREMES, 1941-45, 1950-66. Dissolved solids (1941-45, 1957-66): Maximum, 2,980 ppm July 30, 31, 1959; 

Hardness (1941-45, 1957-66): Maximum, 1,100 ppm July 30, 31, 1959; minimum, 70 ppm June 21-28, 30, 194

Specific conductance (1957-66): Maximum daily, 4,360 micromhos July 31, 1959; minimum daily, 188 micro

Water temperatures (1950-66): Maximum, 89°F July 20, 1963; minimum, freezing point on many days during 

Sediment concentrations (1950-66): Maximum daily, 86,000 ppm Aug. 14, 1955; m

Sediment loads (1950-66): Maximum daily, 1,700,000 tons July 27, 1957; minimu

May and July 1963. 

REMARKS. Values reported for sodium (Na)

idles west of Shiprock, San Juan County, 

ber 1945, July 1957 to September 1966.

226 ppm May 1-11

icromhos May 10. 

June 19.

daily, 2 ppir 

Maximum daily, 1,700,000 tons July 27, 1957; minimum daily, 1 ton on seve

are determined by analysis and do not include potassium (K).

4

ral 

Che ical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

Oct. 1-2, 1965. . .

Jan. 1-31, 1966. .

Mar. 16-31. .....

June 1-6. ........

Mean 

discharge 

(cfs)

1500 

2470 

3230 

3170 

3410 

3850

3480 

1980 

3440 

3170 

2090 

2180

3370 

3750 

4950 

3120 

3640 

3420

Silica 

(SiOj)

11 

12 

15 

13 

13 

14

14 

11 

12 

11 

11 

14

12 

11

10 

9. 2 

7. 6 

7.1

Iron 

(Fe)

"

Calcium 

(Ca)

61 

44 

54 

43

44

47

45 

76 

46 

44 

55 

66

51 

41 

44 

50 

46 

46

Magnesium

(Mg)

13

7.3 

7.7 

7.4 

5. 8 

8.4

8.1 

17 

8. 5 

9.2 

12 

15

14 

13 

7. 3 

11 

8. 0 

7.1

Sodium 

(Na)

44 

29 

67 

29 

24 

35

35 

60 

37 

29 

42 

57

31 

26 

21 

25 

24 

24

Potassium

(K)

Bicarbonate 

(HCO,)

120 

98 

136 

102 

100 

116

122 

144 

114 

106 

120 

158

138 

118 

110 

118 

110 

100

Carbonate 

(COJ

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate

(SO.)

168 

105 

170 

99 

90 

115

105 

227 

117 

108 

153 

191

118 

101 

81 

111 

92 

98

Chloride 

(Cl)

14 

7.3 

13 

7.0 

6. 0 

7. 3

7.0 

23

8. 5 

7. 6 

12 

12

8.6 

6.8 

5. 2 

5.4 

8.0 

6.8

Fluoride

(F)

0. 4 

. 3 

.4 

.3 

. 3 

. 3

. 3

. 4 

.3 

.3 

. 4 

. 4

. 3 

.3 

. 2 

. 2 

. 2 

. 2

Nitrate 

(NOJ

5. 9 

3.1 

4.7 

2.9 

2. 0 

2. 1

1. 6 

3. 4 

2. 0 

1 4 

2. 2 

3.1

2. 9 

2. 5 

3.0 

3.1 

2.3 

2. 9

Bo

ro

(B

j
June 7-27, 1966 ..

July 10-21 .......

Sept. 4-30. ......

Weighted average

Time-weighted

Tons per day. . .

1630

484

771

523

532

612

396

"

2418

6.1 

9. 2

10

8.8 

19

13

19

12

14

16

12

11

11

74

0.01

_

_

_

_

_

_

_

00

-

-

--

57 

75

77

90 

134

100

105

167

115

92

50

61

326

11

12

18 

16

20

9. 4

20

18

15

21

10

12

67

36 

54

55

78 

204

94

88

173

84

114

87

35

48

227

2. 4

-

__

_

_

_

_

_

3.8

-

114 

142

140

156 

262

182

248

182

218

162

208

166

119

131

774

0 

0

0

0 

0

0

0

0

0

0

0

0

148 

215

209

292 

574

335

642

462

347

640

378

328

125

173

817

12 

15

16

22 

22

22

12

12

13

12

21

21

8. 5

11

55

.3 

.3

. 3

.4 

.6

,5

.7

.4

.3

.6

. 5

. 4

0.3

0.3

2.0

4. 

7.3

4.7

6.3 

.

8. 

2. 

7. 

2.

6.

4. 

8.

2.

3.

18

Temperature (°F) of water, water year October 1965 to S

Month

November ..... 

December .....

January........

February. ......

March .........

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

September .....

i nr

60 

58

41 

40 

42

57 

52 

58

78

64

63 

52

38

41 

41

57 

63 

58

78

62

3

63 

53

38 

40 

38

52 

63 

69

81

61

Day

4

63 

55

39 

38 

35

48 

64 

68

73

66

5

60 

55

40 

41 

35

50 

65

67

81

70

6 7

62 

55

40 

38 

37

52

65 

68

83

64

60 

50

"'

41 

38 

43

55 

65 

68

70 

82 

72

8

53 

54

38 

39

50

56 

64 

69

80 

81

75

9 10 11 12 13114

62 

49 

4S

11

50

57 

64 

69

81 

80

75

61

47

42

39

50

57 

60 

70

82 

70 

74

62

53

46 

42

43

51 

57 

72

75 

83 

72

62 

48

41

44

52 

58 

73

84 

82 

62

61 

54

42

56 

60 

72

84 

11

63

54

40

58 

62

74

84 

72 

60

15 16

59 

48

39

58 

65 

74

83 

80 

62

55 

53

42

45

58 

65 

64

83

70 

70

^

52 

52

40

58 

65 

72

78 

67 

72

18

11

37

55 

67 

75

78 

67 

62

19

48 

51

jh 

40

50

50 

66 

76

84

%

20

 

50 

50

38

51

48 

66

78

82

70 

73

2

5

5

3

5

5

5

7

8

6

7
SAN JUAN RIVER BASIN Continued

9-3680. SAN JUAN RIVER AT SHIPROCK, N. HEX. Con

Specific conductance (micromhos at 25°C), water year October 1

Day

13.....

15.....

18.....

31.....

Average

October

4C3

3S7

65C

4G1

3S2

'til

November

368

4CO

368

369

December

434

398

464

586

438

January

413

412

389

433

414

February

540

538

513

538

March

678

609

504

25

571

April

425

418

425

422

May

424

462

475

411

400
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued 

9-3680. SAN JUAN RIVER AT SHIPROCK, N. HEX. Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Sus pended sedime nt, water year October 1965 to September 1966

OCTOBER

Mean

discharge

(cfs)

1790

1220

2160

2800

2800

2760

2780

2400

2130

2300

2370

2380

2300

2380

2380

2580

3050

3350

3280

3320

3020

3080

3080

5000

3200

3300

3250

3200

3260

3250

3080

85250

Susper

Mean

concentration 

(ppm)

800

300

1500

1600

1300

1500

1000

950

1100

1100

1100

700

1500

690

1200

1300

1100

4800

3600

3200

1400

2600

2500

2700

1500

2000

1900

1400

1100

780

660

-

ded sediment

Tons

per 

day

3900

990

S 10000

12000

: 9800

11000

7500

6200

6300

6800

7000

4500

9300

4400

7700

9100

9000

43000

32000

29000

11000

22000

21000

22000

13000

18000

17000

12000

9700

6800

5500

387490

Mean

discharge

(cfs)

3150

3500

3380

3420

3380

3300

3210

3220

3170

3120

3200

3380

3380

3320

3550

35BO

3700

3580

35BO

3610

3520

3700

3910

3940

3940

4480

3910

3700

3500

3450

1057BO

JANUARY

1..

2..

3>.

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

3820

3400

3280

3100

3020

3050

3100

2830

2240

31BO

3150

3080

3150

3120

3200

3280

3350

3050

3150

3300

3250

3200

3320

3320

3200

3220

3200

3150

3150

3180

3200

7300

1400

550

450

450

420

310

160

250

300

270

240

290

190

200

190

180

360

290

250

200

TO

90

140

160

140

100

120

75

72

160

98240 

75000

13000

4900

3800

3700

3400

2600

1200

S 1700

2600

2300

2000

2500

1600

1700

1700

1600

3000

2500

2200

1800

600

810

1200

1400

1200

860

1000

640 !

620

1400

144530

3020

3180

2800

2060

2060

2100

2010

2030

2060

2030

2030

1960

2010

2050

2050

2060

2050

2050

1990

2010

2010

1990

1990

1820

1750

1750

1820

1720

 ^~

58460

NOVEMBER

Susper

Mean

concentration 

(ppm)

1400

2100

2800

3500

730

620

610

360

310

1200

370

230

900

380

1BOO

850

2100

430

770

1400

1800

1600

1300

720

890

5700

1800

710

1500

1800

~

ded sediment

 - 

Tons

per

day

12000

20000

26000

32000

; 6700

5500

5300

3100

2600

10000

3200

2100

8200

3400

17000

8200

21000

4200

7400

14000

17000

16000

14000

7600

9500

69000

19000

7100

14000

17000

402100

DECEMBER

Suspended sediment

*i Mean

discharge

(cfs)

.

3500

3450

33BO

3450

3500

3380

3420

3500

3670

3730

3760

3700

3580

3480

3550

3550

3450

2660

1980

3320

3500

3420

3850

3730

3450

3320

3280

3050

3250

3450

3700

106010

FEBRUARY

140

140

130

120

150

170

68

88

160

120

100

120

130

89

100

120

94

73

180

140

100

120

360

900

940

940

1000

1200

"

1100 1690

1200

980

670

830

960

370

480

890

660

550

640

700

490

550

670

520

400

970

760

540

640

1900

4400

4400

4400

4900

5600

41170

1640

1620

1620

1690

1700

1720

2230

2B70

3000

2830

2630

2450

2360

2720

3050

3120

2920

2700

26BO

2680

2620

2820

3110

3800

3900

3800

3980

4010

4320

4460 1

86740

' - -

Mean

concentration 

(ppm)

1500

450

410

210

620

380

810

710

190

190

520

930

860

330

260

380

310

190

990

1100

370

170

1000

1100

530

500

970

1700

430

340

4000

- -

Tons

per 

day

14000

4200

3700

2000

5800

3500

7500

6700

1800

1900

5300

9300

8300

3100

2500

3100

2900

1400

S 7900

9900

3500

1600

10000

11000

4900

4500

8600

14000

3800

3200

40000

209900

MARCH

550

300

510

300

160

130

130

2400

16000

19000

18700

14700

8800

6100

6800

4900

3600

2600

1800

1500

1400

2500

1500

4500

2700

3000

2500

1700

1300

1300

1200

2500

1300

2200

1300

730

600

600

S 20000

124000

154000

143000

1C, -00

58000

39000

50000

40000

30000

20000

13000

11000

10000

18000

11000

S 40000

28000

32000

26000

18000

14000

15000

14000

1041230

S Computed by subdividing day.
QUALITY OF SURFACE WATERS, 1966

SAN JUAN RIVER BASIN Centinued

9-3680. SAN JUAN RIVER AT SHIPROCK, N. MEX.--Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Mean

Day discharge

(cfs)

1.. 4740

2.. *780

3.. 4860

4.. *620

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

4290

4320

4180

4080

4010

3900

3840

37*0

3710

3620

3350

16.. 3200

17.. 3*00

IB.. 3560

19.. 37*0

20.. 3650

21.. 3380

22.. 3350

23.. 3320

2*.. 3180

25.. 3080

26.. 3000

27.. 3180

28.. 3*20

29.. 3*50

30.. 3500

31.. 

Total

1..

2..

3..

*..

5..

112*50

1550

1630

1370

1140

1010

6.. 880

7.. 816

8.. 700

9.. 616

10..

11..

12..

13..

1*..

15..

16..

17..

IB..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

560

539

50*

532

*97

*72

*73

*5*

39*

*30

454

496

442

42*

335

270

360

370

40*

412

1760

930

2122*

Total discharge

APRIL

Suspended sediment

Mean Tons

tration per 

(ppm) day

1400 18000

1600 21000

2200 i 29000

3200 1 40000

1200 14000

710 i 8300

610 6900

420 4600

470 5100

570 6000

560 5800

640 6500

580 5800

450 4400

210 1900

350 3000

420 3800

570 5500

530 5*00

360 3500

3*0 3100

800 7200

590 5300

830 7100

*50 3700

370 3000

360 3100

320 , 3000

370 3*00

420 4000

__

 2*1*00

JULY

620 2600

**0 1900

570 2100

570 1800

290 790

1*0 330

90 200

570 1100

680 i 1100

1*0 210

130 190

870 1200

690 B 990

460 B 620

160 B 200

470 B 600

1700 2100

150 160

2200 2600

1500 1800

3000 S 4700

33700 41700

23000 26300

11200 10100

30OO 2200

1800 1700

310 310

*300 S 7900

8700 S 12000

61300 S 3*6000

36000 93700

569200

for vear (cfs-davs)

Mean

discharge

(cfs)

3620

37*0

4080

4400

4660

5020

5850

6200

6300

6050

4520

3800

3380

3150

2960

2920

2920

2600

2920

3420

3740

3840

3800

3800

4220

4040

3680

3380

2920

2780

38*0

122550

771

330

952

1*70

1040

686

595

*7B

370

266

2*8

222

222

316

311

270

298

517

707

587

448

382

801

532

484

406

370

325

298

280

378

15360

MAY

Suspended sediment

Mean

tration 

(ppm)

380

380

400

520

700

750

1200

900

850

630

570

510

*30

350

390

**o

460

430

410

550

510

470

500

470

460

350

270

310

420

*00

660

~

AUGUST

29000

8000

16500

22500

1*500

3500

1100

890

580

530

*500

720

1700

6000

7000

4300

6400

5600

25900

21500

5200

1700

- - - -

per 

day

3700

3800

4400

6200

8800

10000

19000

15000

14000

10000

7000

5200

3900

3000

3100

3500

3600

3000

3200

5100

5100

4900

5100

4800

5200

3800

2700

2800

3300

3000

6800

183000

JUNE

Mean

discharge

(cfs)

4660

3890

3200

3050

2980

2760

2380

2020

1820

17*0

1760

1680

1720

1950

I960

I960

1630

1500

1*30

1*30

1*90

1370

1290

1*00

1360

1230

1210

1080

1000

1160

--

58110

 

Suspended sediment ~ r ~ ~

Mean T 

Tons concentration £r

*90 6200

250

350

400

2600

3000

3300

4*0 3500

210 1600

180 1200

160 870

130 *0

98 60

9*

95

98

130

260

190

130

60

5*

65

7*

100

50

30

60

660

1*00

1000

570

2*0

210

250

300

370

120 420

130 *90

1*0

130

73

82

70

360

-

510

430

2*0

2*0

B 190

1100

33350

SEPTEMBER

60000

7100

S 64100

89300

40700

6500

1800

1100

580

380

3000

*30

1000

5100

5900

3100

5100

S 10000

49400

3*100

6300

1800

17200 S 49200

46800

10*00

6300

2700

2100

1000

600

7900

69700

13600

6900

2700

1800

BOO

*50

S 9200

5511*0

702

602

532

50*

466

418

388

3*5

330

3*0

370

50*

503

360

325

448

560

504

*60

448

430

388

360

3*0

3*0

306

306

330

320

293

12522

Total load for year (tons) .....................................................

29000 S 56100

10500 17100

*000 5700

1500 2000

830 1000

600

500

680

520

480 450

490 440

380 350

2100 2100

5300 7200

5300 S 7700

1600 1600

1000 880

4800 S 7900

7500

5100

*200

3300

5100

2200

890

550

400

250

230

310

11000

6900

5200

4000

5900

2300

860

500

370

210

190

280

1100 950

1300 ! 1000

 1

~ 151380

....... 882696

....... 3955890

S Computed by subdividing day.

B Computed from estimated-concentration graph.
SAN JUAN RIVER BASIN Continued 

9-3680. SAN JUAN RIVER AT SHIPROCK, N. MEX. Continu

Periodic determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

1130 

1650 

1730 

1300 

1620 

1535

0700 

0815 

0620 

0830 

1300 

1700 

1700

Water 

temperature

(°F)

48 

46 

43 

43 

48 

78

74 

72 

74 

71 

74 

70 

70

Sampling 

point

Discharge

(cfs)

3640 

4270 

4060 

1750 

2750 

1840

716 

2500 

825 

1590 

950 

412 

412

Sediment 

concentration 

(ppm)

10400 

5440 

11800 

951 

18600 

750

32300 

93400 

46900 

20500 

227OO 

2880 

2880

Sediment 

discharge 

(tons per day)

102200 

6 27 2O 

129400 

4490 

138100 

373O

6244O 

630400 

104500 

88010 

5823O 

3200 

3200

Perce

0.002

60 

50 

56 

64 

49 

56

63 

58 

63 

59 

39 

61 

0

0.004

69 

64 

65 

71 

61 

68

81 

65 

74 

73 

48 

75 

4

0.008

87 

21
SAN JUAN RIVER BASIN Continued

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH 

(Irrigation network station)

LOCATION. Lat 37°08'50", long 109°51'50", at bridge on State Highway 47, 1,800 feet downstream from 

and 114 miles upstream from mouth.

DRAINAGE AREA. 23,000 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: February to June 1927, October 1929 to September 1966.

Water temperatures: May 1944 to September 1961, October 1964 to September 1966.

Sediment records: August to September 1928, July 1929 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,090 ppm Aug. 26, 27; minimum, 259 ppm May 8-11.

Hardness: Maximum, 550 ppm July 30, 31; minimum, 164 ppm May 8-11.

Specific conductance: Maximum daily, 1,630 micromhos Aug. 1; minimum daily, 386 micromhos May 10.

Water temperatures: Maximum, 85°F July 29; minimum, freezing point Jan. 22.

Sediment concentrations: Maximum daily, 57,000 ppm Aug. 2; minimum daily, 170 ppm July 17.

Sediment loads: Maximum daily, 270,000 tons Oct. 18; minimum daily, 260 tons July 17. 

EXTREMES, 1929-66. Dissolved solids: Maximum, 1,860 ppm July 21-31, 1934; minimum, 152 ppm June 11-

Hardness: Maximum, 874 ppm July 21-31, 1934; minimum, 102 ppm July 1-6, 8-10, 1957.

Specific conductance (1941-66): Maximum daily, 2,790 micromhos Sept. 19, 1959; minimum daily, 208 

Water temperatures: Maximum (1944-61, 1964-66), 92°F July 31, 1959; minimum (1944-61, 1965-66), fr

Sediment concentrations: Maximum daily, 309,000 ppm Sept. 21, 1929; minimum daily, no flow on seve

Sediment loads: Maximum daily, 12,000,000 tons Oct. 14, 1941; minimum daily, 0 ton on several days 

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1, 1965. .... 

Oct. 2-3. ........

Oct. 5-16. .......

Oct. 18. .........

Dec. 21-30. ......

Mean 

discharge 

(eta)

2330 

1675 

2420 

2689 

4800

6350 

3848 

3237 

3608 

5380

4730 

6120 

4910 

3907 

3910

4160 

3792 

2660 

2170 

3866

Silica 

(Si02)

11 

11 

11 

13 

13

13 

13 

14 

11 

12

12 

12 

12 

12 

12

12 

12 

11 

12 

12

Iron 

(Fe)

Calcium 

(Ca)

84 

67 

80 

58 

108

72 

83 

60 

54 

62

69 

66 

87 

63 

52

64 

56 

55 

68 

53

Magnesium 

(Mg)

19 

17 

20 

16 

23

11 

22 

20 

14 

14

18 

16 

26 

17 

17

26 

19 

21 

31 

18

Sodium 

(Na)

68 

49 

69 

37 

76

90 

68 

39 

34 

52

57 

58 

71 

45 

41

69 

46 

46 

62 

46

Potassium 

(K)

Bicarbonate 

(HCO,)

148 

130 

140 

124 

160

188 

172 

134 

122 

186

169 

192 

196 

148 

131

145 

128 

127 

138 

130

Carbonate

(ccg

0 

0 

0 

0 

4

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Suliate 

(S04)

280 

214 

285 

167 

358

233 

275 

185 

146 

143

204 

172 

283 

183 

160

263 

190 

192 

283 

176

Chloride 

(CD

16 

9. 7 

16 

8. 6 

13

17 

15 

9. 5 

10 

16

12 

14 

16 

11 

11

15 

12 

13 

16 

13

Fluoride

(F)

Nitrate

(Nc
Dec. 31, 1965. . . . 

Jan. 1-3, 1966. . .

Feb. 1-3. ........

Feb. 4-7. ........

Mar. 9-17. .......

May 1-7. .........

May 8-11. ........

May 22-31. ....... 

June 1-3. ........ 

June 4-19. .......

July 14.. ........

Aug. 1-6. ........

Aug. 7-12. .......

Aug. 13-17. ......

Aug. 21-25, 1966. 

Aug. 26-27.......

Sept. 1. .........

Sept. 6-30. ......

Weighted average

Time-weighted 

average. .....

5040 

3987

2325

4243

6420

3240

3867 

4100 

2225

1324

711 

681

1590

615

-

2721

12 

12 

12

6.4

7. 7 

7.7 

6.8

16 

16

16

12

11

11

56 

67

51

52 

56 

68

124

118 

124

100

114

64

74

23

18

19

23

25

9.2

10 

15 

15 

25

25

13

37

28 

23 

23

20 

33

36

19

22

137

52

58

24

37 

29 

45

135

127 

205

112

126

48

63

147 

161

123

122 

128 

132

220 

256

300

186

141

151

0 

0

0

0 

0 

0

0 

0

0

0

-

_

199 

207

102

137 

139 

193

455 

584 

435

292

493

199

257

14 

13

6. 3

8. 4 

11 

14

24 

24

20

29

13

16

Analyses of additional samples (instantaneous disch

Apr. 14, 1966.... 

June 7. ..........

3410 

2870

9.7 

5.9

54 

53

14 

14

29 

29

2.1 

1.6

122 

110

0 

0

129 

143

S.9 

9.0

0.5 

.5

1.9 

2.4
QUALITY OF SURFACE WATERS, 1966
COLORADO RIVER BASIN
QUALITY OF SURFACE WATERS, 1966

SAN JUAN RIVER BASIN--Continued 

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH--Continued

Su spended sediment, water year October 1965 to September 1966

(Where no concentrations are reported, loads are estimated)

OCTOBER NOVEMBER DECEMBER

Day dis1..

2..

3..

* 

5..

charge

(cfs)

2330

1940

1410

2420

2830

6.. 2750

7.. 2740

8.. 2760

9,. 2420

10.. ' 2210

11.. ' 2540

12.. . 2650

13.. 2550

14.. 2490

15.. 2610

16.. 3720

17..

18..

19..

4800

6350

4900

20.. 3690

21.. 3480

22.. 3320

23..

24..

25..

26..

27..

3230

3150

3060

3390

31SO

28.. 3240

29.. 3310

30.. 3260

31.. 3310

Total 96040

»=r--^-^^-^---- 

 - 

auspen

Mean

(ppm)

3000

1200

530

3100

2500

1900

1900

2000

2000

700

1300

1500

1400

1200

1400

_

13000

16000

11000

8800

6000

4500

3200

2200

1700

_

4300

4600

4600

4500

4600

_

- 

ded sediment

Tons

day

19000

6300

2000

Mean

disSuspended sediment

Mean

Mean Ton, ' cHscharge concen- ner charge

(cfs) I tration 

i (ppm) day |! (cfs)

i!

3190 3300 i 28000 3670

3500 3500 33000 3690

3760 3600 37000 3670

20000 3740 3400 34000

19000 3780 2800 29000

14000 3760

14000 3750

15000 3510

13000

4200

8900

11000

9600

3580

3650

3620

3650

2300 23000 3650

2400 24000

2100 20000

2500

3000

3670 2700

3610 2500

3620

8100 3580

9900 3620

80000

170000

270000

150000

88000

3540

3610

2300

3700

5100

24000

30000

27000

24000

22000

36000

35*0

3620

3650

53*0

*910

4160

3920

3810

50000 3740

4600 44000 3880

5200

3640 4400

3610 ' 3600

3640 3700

56000 3550 3300

40000 3460 3100

51000

43000

35000

3750

3650

2660

36000 2170

32000 3410

29000 3390

28000 5380 , 200000 4680

19000 5000 ' 12000 160000 4620

14000 !' 4460 12000 140000 4240

40000 6120 12000 200000 3680

37000 4910 8300 110000

40000 " 4060

41000 3900

40000

41000

1328000

 ^_ - _^_

3760

116960

6500 71000

6200 65000

3550

3530

3310

5400 55000 4250

5040

- " - - 7 

1712000 118450

JANUARY FEBRUARY

1.. 4560

2.. 3890

3.. 3510

4.. 3340

5..

6..

7..

8..

9..

3150

3240

3280

3240

2820

10.. 2390

11.. 3350

12.. , 3220

13..

14..

15..

16..

17..

18..

19..

20..

3270

3260

3240

3280

3270

3230

3040

3170

21.. 3270

22.. 3090

23». , 3100

24,. ' 3080

25.. 3100

26.. ' 3040

27.. 3040

?8.. 3020

?9.. 3080

30.. 3110

31.. 3150

Total 99830

7600

5900

5100

4200

3600

2900

2100

2100

1400

1700

2300

2100

1700

1700

2100

2700

3500

4900

5800

4900

3200

2000

1700

2100

2700

2900

2400

1900

2400

3300

3600

94000 3190

62000 i 3130

48000 I 3140

38000 2360

31000 2270

25000

19000

18000

11000

11000

2300

2370

T ~ " 1 

2800 24000 1950

1900 16000 : 1900

1700 14000 1900

1900 12000

2000 12000

1870

1900

1800 11000 1880

1600 10000 1870

2520 1300

2430 1600

2380 3000

21000 2220 4500

18000 2140 5000

15000 2150 ' 5000

8800 1980

10000 3010

19000

27000

29000

*030

*230

*230

29000 i 3990

15000 2190 ' 4600 27000 3460

18000 2150 ' 3100 18000 i 3830

24000

31000

43000

48000

42000

2190 1600 9500 4240

2190 1100 6500 4320

2150 1100 6400 3600

2200 1000 5900 3090

2160 970 5700 2970

28000 2240

17000 2270

14000 2280

17000 2280

23000

24000

20000

15000

20000

28000

31000

2060

980 ! 5900 2920

1200 ! 7400

1300 8000

1300 8000

2920

2920

27*0

1300 7200 3830

2060 1400

2060 1600

2030 1700

__ |

869000 65110 

7800

8900

9300

3890

3960

4000

*1*0

4350

4520

363300 100*40

Suspended sediment

 1-

Mean Tong

concentration { \ day ppm

4500

*200

3800

3700

3300

3000

2900

45000

42000

38000

36000

33000

30000

28000

2700 26000

2700 27000

9700 1*0000

9800

8600

8200

5600

*500

3600

3100

130000

97000

87000

58000

45000

38000

31000

2900 29000

10000

5500 32000

10000 92000

10000 92000

 200000

200000

16000 180000

5700 57000

3900 37000

3900 37000

3*00 30000

5900 68000

8800 120000

2115000

MARCH

1800 9500

1700

1*00

1100

1000

1000

1100

8700

7200

5600

5100

5100

5600

1200 6400

4300 35000

15000 160000

17000 190000

17000 190000

14000 150000

9600 90000

12000 120000

13000 150000

13000 150000

7000 68000

3100 26000

2600 21000

2500

3600

4400

4100

5300

20000

28000

35000

30000

55000

5300 56000

4800 51000

4100 44000

3700 41000

4100 j 48000

5500 67000

 1878200
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH--Continued

Suspended sediment, water year October 1965 to September 1966 Continue 

APRIL MAY I JUNE

Mean

y discharge

Suspen

Mean

concen- (cfS ) t;31 ' 0"

(ppm)

1.. 4640 6700

2.. 4960 6500

3.. 5370 5700

4.. 5540 4900

5«.

6..

7..

1..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

5270 3900

4880 3200

4610 3200

42SO 3600

4740 3700

4170 3200

4100 | 2500

3970 ] 2200

3900 ! 2000

3710 ! 1800

3690 j 20OO

3470 , 2400

3500 2900

3780 3200

19.. 4130 3100

70.. 4510 2600

21.. 4380 2000

72.. 4110 1800

73.. 4140 1700

74.. 4090 1700

75.. 3930 1700

?6.. 3810 1600

27.. 3780 1500

78.. 4070 1700

29.. 4170 1900

30.. 4200 2000

31.. -- 

Total 127300 -

J JULY

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

1'..

13..

14..

15..

16..

17..

18..

1160

1380

1680

1570

1260

1160

1010

914

877

731

670

1400

1800

2300

2400

1900

1400

1400

1600

1300

730

330

645 240

632 350

613 360

632 290

670 230

566 170

572 230

19.. 589 ' 490

70.. 560 710

21.. 560 630

22.. 572 490

23.. 632 

74.. 972

25,. 947

26.. 881

27.. 738

28,. 704

29.. 613

30.. 897

31.. 1750

 ! 

Total) 27007

72000

17000

10000

8400

3100

ded sediment

Tons

per

day

84000

1

Mean

discharge

(cfs)

Suspended sediment Suspended sediment

~ T - - Mean 

Mean Tons dis" Mean Tons

concen- charge concentration -j xj , tration "j

(.ppm; . (PPm)

4210 2100 24000 4240 3400 , 39000

87000 || 4350 ' 2200 26000 4460 3100 37000

82000 4450 ! 2200 26000 3600 2500 24000

73000 ' 4780 ! 2300 30000 3140 2200 19000

55000 5200 ! 2500 35000 3100 2000 , 17000

42000 5440 2800 41000 ' 2960 1800 ' 14000

40000 i 5720 3300

42000 6220 3800

47000 6570 3900

36000 6500 3400

78000

74000

6390 i 3100

5100 1 3000

21000 j 4350 | 2600

18000 1 3830 2100

20000 3460 1800

22000 ! 3240 1500

27000 3050 1400

33000 3140 1400

35000 2920 1500

32000 3220 1700

24000 3650 1800

20000 4070

19000 4100

51000 2800 1400 11000

64000

69000

60000

53000

41000

31000

22000

17000

13000

2550 1400 9600

2270 1800 11000

2080 2000 11000

1950 2000 11000

1880 1900

1790 1800

1780 1600

1970 1400

1980 1300

12000 2000 1300

12000 1760 1300

12000 1590 1300

15000 1610 1400

18000 1640 1600

9600

8700

7700

7400

6900

7000

6200

5600

6100

7100

2000 22000 1600 1600 6900

2100 23000 1620

19000 3890 1900 20000

18000 3920 1800 19000

16000 4070 2000 22000

15000 4070

18000 3920

21000 3720

23000 3410

1036000

4400

6700

10000

9800

2400 26000

2500 26000

2100 21000

1900 17000

3500 2700 26000

1300 5700

1440 940 3700

1460 ' 790 3100

1450

1390

1370

1310

1180

- - t " " * " " " 

134460 894000 63970

760 3000

790 3000

940 3500

1100 3900

1200 3800

312500

AUGUST T SEPTEMBER

1340 56000

1280 1 57000

1160 40000

947

6500 : 1700

34000

48000

4400 1430 23000

3800 1030 13000

3900 858 9900

2900 670 3200

1400

600

500 1500

370 5100

420 310 7000

600 290 5900

600 280 3100

210000 1590

200000 1690 28000

130000 1030 12000

90000 930 9600

230000 811 7300

89000 724 4600

36000 670 2700

23000 620 1900

5400 589 1600

2000

5100

5900

4600

2300

490 350 ] 1200 1100

380 , 400

260 310

360

780

1100

950

760

2000

60000

56000

40000

20000

16000

5100

20000

200000

480200

Total discharge for year

Total load for year (tor

400

500

613

745

684

613

566

947

711

651

595

548

674

620

22042

870 940

1500 1300

2500 2700

572 1400

548 1400

601 1800

626 2700

767

753

782

626

731

3300 4500 804

 20000 697

40000 645

18000 i 33000 , 651

13000 22000 613

7900 12000 554

100000 515

29000 56000 483

22000 39000 462

12000 19000

7400 11000

437

433

 20000 473

4400 7400 

1423240 21427

5400

11000

200000

130000

33000

24000

16000

9000

4900

3200

2500

2200

2100

2900

4600

11000

22000

18000 38000

22000 37000

25000 49000

24000 52000

16000 30000

8200 14000

5300 9300

4300 7100

3300 4900

2500 3500

1800 2300

1400 1700

1300 1500

1400 1600

1600 2000

 

721300

(cfs-days) . . . . .................. ... .. .. . . ......... ..... 993036

s) ........... .... ...... ....... ........... 13132740
SAN JUAN RIVER BASIN Continued 

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH Con

riodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P. pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Feb. 11, 1966. .....

July 22. ...........

Time 

(24 hour)

1600 

1400 

1030 

0820 

0955

1705 

1650 

0945 

1315 

1250

1215 

1950 

1720 

1730

1715 

1105 

1715 

1710 

1530 

1730

Water 

temperature

(°F)

45 

56 

50 

45 

35

52 

47 

54 

61 

67

83 

81 

83 

83

77 

75 

70 

66 

68 

69

Sampling 

point

Discharge

(cfs)

4660 

2920 

3610 

7160 

2200

5100 

4280 

4140 

6420 

2830

645 

578 

914 

1040

566 

677 

1560 

767 

697 

442

Sediment 

concentration 

(ppm)

9450 

1890 

2210 

13400 

4660

14200 

3590 

1780 

3080 

1240

168 

418 

19300 

35000

7770 

25600 

23500 

28300 

15200 

1170

Sediment 

discharge 

(tons per day)

119000 

14900 

21500 

259000 

27700

196000 

41500 

19900 

53400 

9470

293 

652 

47600 

102000

11900 

46800 

99000 

58600 

28600 

1400

Perc

0.002

39 

9 

2 

18 

2

27 

14 

14 

12 

5

5 

66 

62

51 

65 

46 

72

39

0.004

47 

9 

3 

21 

3

30 

15 

15 

14 

6

5

77 

74

61 

69 

60 

83

43

0.00

Particle-size analyses of bed material, water year October 1965 

(Methods of analysis; B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet: S, sieve; V. vibual accumulation tube; W, in distille

Date of collection

June 7, 1966. .....

Time 

(24 hour)

1250 

1610

Water 

temperature

(°F)

67

Sampling 

point

Discharge

(cfs)

2830 

D 400

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Perc

0.062

1 

13

0.125

6 

16

0. 25

28 

40

D Daily mean discharge.
COLORADO RIVER BASIN

> K

 H II 

OS r-t

4J O 

t/> iH

3 O

00 0 

7 £

M C

rt s

a cT« a*

O CN! T3 - 

O "H O "r

) <O t^ rH td -H -

; I 3 n) 0)

5 -O ffl -H u 3 c

^x^

OJMH

 f U

03 W

Q tf

3" o U

u

S|-

of ec

n ooooo

O in 00t~t>00
COLORADO RIVER MAIN STEM--Continued

9-3800. COLORADO RIVER AT LEES FERRY, ARIZ. Cont

Specific conductance (micromhos at 25°C), water year October 19

Day

1..... 

2..... 

3.....

12..... 

13.....

15..... 

16.....

31.....

Average

October

"

502

November

5*1

December

~

_

708

January

821

_

February

852 

862

866

S64

864

870

March

873 

872 

872

872

866

April

864 

864

880 

880

884

a«n

S71

881

May

864 

858 

860

842

842 

824

788

829
COLORADO RIVER MAIN STEM Continued

9-3800. COLORADO RIVER AT LEES FERRY, ARIZ. Co

Temperature (°F) of water, water year October 1965 to 

Month

October ....... 

November ..... 

December .....

June..........

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

August ........

September .....

1

50 

55 

55

60

66

2

-

55

67

3

-

51 

58 

56

65

4

50 

56 

57

65

5

51 

54 

57

66

6

63

52 

54 

54

65

7

63

52 

52

54

65

8

51 

55

66

9

63

52 

52

66

10

53 

51 

59

66

1 1

68

52 

51 

56

66

66

12

51 

57

66

65

13

68 

63

51

53 

55

65

64

14

68 

63

52 

51 

58

65

66

D..y

15J 16

52

53 

57

64

62

__

50 

58

64

63

17

62

44

53 

51 

57

63

63

18

68

44

51

51 

58

64

19 , 

68

51

50 

58

65

20

!I

58

52

51 

54 

58

63
QUALITY OF SURFACE WATERS, 1966

COLORADO RIVER MAIN STEH Continued 

9-3800. COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Periodic determinations of suspended-sediment discharge,

water year October 1965 to September 1966

ss than one (<1) in the concentration column indicates that concentration is below the 

limits of detection)

Oct. 22, 1965...........

NOV. 1. .................

Nov. 8..................

Nov. 22. ................

Dec. 1..................

Dec. 7..................

Jan. 9, 1966............

Jan. 25.................

Feb. 8..................

Mar. 19.................

Mar. 24.................

Mar. 30.................

Apr. 7. .................

Apr. 14.................

Apr. 20.................

May 1...................

Hay 11. .................

May 16..................

May 23..................

Hay 31..................

June 9..................

June 16.................

June 23.................

June 29.................

July 11.................

July 17. ................

July 25.................

Aug. 1..................

Aug. 11.................

Aug. 18. ................

Aug. 25.................

Sept. 9. ................

Sept. 22................

Sept. 30................

E Estimated.

T Less than 0.50 ton.

C Composite period.

Time 

(24 hr)

1630

1100

1130

1015

1400

1030

1045

1430

1145

1245

0930

1330

1545

1000

1445

1100

1530

0815

1500

0830

1620

0830

0800

0810

1820

0800

1600

1000

0830

1530

1030

1700

1245

Water 

temperature

Discharge 

(cfs)

13400

10200

10000

6000

11700

7490

2860

12500

12000

12100

9060

11400

14400

13600

16100

15200

14700

12700

17600

13500

16800

16100

3730

8380

8520

15000

6510

15200

6260

6160

13700

6810

18200

12300

Suspended Sediment

Mean 

concentration

(ppm)

14

5

190

190

12

5

37

2

2

9

4

34

Discharge 

(tons per day)

250

1800

240

65

570

240

62

470

160

6200

4600

220

270 

260 

170 

160 

4

1900 

T

950

300

50

45

69

490

1500

34

33

330

74

1700

270
PARIA RIVER BASIN 

9-3820. PARIA RIVER AT LEES FERRY, AR

LOCATION. Lat 36°52'20", long 111°35'40", at gaging station 0.5 mile upstream from 

Lees Ferry, Coconino County. 

DRAINAGE AREA. 1,410 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to February 1950. 

Specific conductance: March to September 1966. 

Water temperatures: October 1956 to September 1966. 

Sediment records: October 1947 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 92°F June 13; minimum, freezing po

Sediment concentrations: Maximum daily, 260,000 ppm July 25; minimum daily, 3 ppm 

Sediment loads: Maximum daily, 370,000 tons Nov. 23; minimum daily, less than 0.0

June and July. 

EXTREMES, 1947-66. Water temperatures (1956-61, 1965-66): Maximum, 96°F Aug. 11, 1

freezing point Jan. 18, 1960, on several days during January 1961, Jan. 12, 1966.

Sediment concentrations: Maximum daily, 433,000 ppm Aug. 4, 1961; minimum daily, 

Sediment loads; Maximum daily, 5,100,000 tons Sept. 12, 1958; minimum daily, less 

of most years.

Specific conductance (micromhos at 25°C), water year October 1

Day

2.....

3.....

5.. ...

7.. ...

9. ....

12.....

13... ..

15.....

21.. ...

22.. ...

23.....

24.....

25... ..

October

750

640

1000

800

November

920

810

1500

1300

December

-

970

__

1200

1000

January

1200

~

1200

1100

1200

1200

1200

February

__

1000

900

900

1100

1300

1100

March

1200

--

_

--

1100

l^ud

12UU

1 1DO

1000

April

10 JO

1 100

QUO

000

000

000

OOJ

1 100

<J50

90J

yoo

-)00

May

bj )

7^n

? -J 3

5.10

7. '-

MO )

TOO

oi\>

j j '

J ID

^.1 1
PARIA RIVER BASIN Continued

9-3820. PARIA RIVER AT LEES FERRY, ARIZ. Con

Specific conductance (micromhos at 25°C) , water year October 1965 

Day

2a.....

29.. ... 

30..... 

31.....

A^-rage

October

900

November

1100 

1100 

1100

December

710

1500 

1400

January

1200

February

-

March

1 1 0 J 

I LUM 

J ,_'JU 

L Km

--

Apr,!

700 

T-.O 

bUO

'i^l

May 

Temperature (°F) of water, water year_OcU>ber 1965 t

Month

November ..... 

December .....

January........

March

June ..........

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

September .....

1

74 

56 

42

52

80 

70

84 

73 

62

2

82

75 

77 

69

3

74

76 

72 

78

4

47 

64

84 

73 

67

5

47 

61 

74

71

70

6

51 

80 

63

81 

75

7

51 

74

70

83 

84 

62

8

53 

74

90 

73 

66

9

57 

70 

75

76 

72 

65

10J11

57 

63 

81

77 

74 

67

54 

58 

68

89

80 

75

12 13

49 

63 

77

79 

63

47 

60 

92

76 

81 

61

 

73

71 

74

75 

84 

68

Day

1 5 | 1 6 17

48 

65 

71

79 

73 

55

1

CO

75 

75

71 

74 

56

46

70 

84 

78

79 

72

58

18

46

59 

61

74

75 

80 

78

55

58 

57

90

74 

75 

64

20

61

64

50 

78 

75

69 

63
COLORADO RIVER BASIN

PARIA RIVER BASIN Continued 

9-3820. PARIA RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

OCTOBER NOVEMBER

Mean

DaV discharge c< 

(cfs) e

(

1.. 7.2'

2.. 8.0 E

3.. 8.0 E

4.. 7.2 E

5.. 7.2 E

6.. 6.6

7.. 6.6 E

8.. 6.6

9.. 6.9^

10.. 7.2'E

11.. 7.2

12.. 6.9 E

13.. 6.6

14.. 6.2

15.. 6.6 E

16.. 9.4 E

17.. 103 E

18.. 93 >E

19.. 41

20.. 22

21.. 16 E

22.. 11 E

23.. 11

24.. 11 E

25.. 11

26.. 11

27.. 10 ',E

28.. 9.8 E

29.. 9.8

30.. 9.8 E

31,. 9.8 E

Total 493.6

Suspended sediment

7 Mean

Suspended sediment

 - 

Mearl Tons dis- Mean Tons

ratTon" per °harge "atTon" per

PPm) _,__ _____ (ppm) _]

44 , 0.

40 ! .

40

30

30

9..I 37

9.8

9.8

9.8

E 40

E 40

E 30

9.8 E 30

1

1

1

.8

.8

26 . i 9.8 30' .8

30 . 1 8.3 E 30

25 . 8.0 29

20 . 7.6

20 . 7.6

19

20

16

19 .3

9.0

9.0

9.8

E 30

.7

.6

.6

E 30 .6

E 30 .7

E 20

24

8.3 E 30

.5

.6

.7

50 .9 9.8 28 .7

200 5 9.8 'E 30 .8

42000 12000 11 28 .8

44000 11000 121 E 25000 8200

140OO 1500

4000 240

20OO 86

1500 45

39

23

E 10000 1100

E 5000 310

18 E 2000 97

17 E 1000 < 46

1000 30 749 85000

600 18 189 56000

S 370000

S 31000

320 10 119 E 45000 15000

180 5 132 40000 15000

100 3 45 E 24000 3000

100 3

61 2

25 13000 880

18 3900

50 1 22

40 1

1800

190

110

-! Mean

disJ 

charge 

< '"

21

21

20

19

19

19

19

19

20

105

113

63

54

53

47

44

44

40

32

25

28

24

43

35

26

27

23

28

39

216

185

24957.4 1471

JANUARY i FEBRUARY

 . _

1.. 67 E

2.. 41 E

3.. 25 E

4.. 24 ,E

5.. 23

6. 23

7. 30 E

8. . 34 E

9. 35 E

10. 43 E

11.. 44 E

12.. 43

13.. 40

14.. 35 E

15.. 28 E

16.. 29 E

17.. 22 E

18.. 16

19.. 9.4

20.. 14

21.. 11

22.. 7.6 E

23.. 9.0

24.. 11 E

25.. 11 E

26.. : 8.6 .

27.. 7.3

28.. 13 E

29.. 9.4 E

30.. 12 E

31.. 18

Total 743.3,

 r- - -- | - _ _ - - - ,

2000 360 1 27

1800 200 22

1500 100

1200 78

19

19

1000 62 23

1600 99 26

1600 130

E 400 29

E 400 , 24

E 300 15

E 300 15

E 300

E 300

19

21

40 E 350 38

1600 150 62 350

1500 140 37 E 300

59

30

1500 170 12 310 10

1400 170 14

1300 150 , 8

E 200 8

110 2

1300 140 |l 19 E 100 5

1200 110 14 E 100

1 000 76

800 63

16 140

11 E 100

600 36 11 E 100

490 21 13 '£ 200

280 7

600 23

60O 18

600 12

600 15

28 E 500

4

6

3

3

7

38

34 E 1000 92

43 2300 270

64 5200 900

57 E 4300 660

600 18 42

600 18

600 14

450 9

500 18

400 10

E 2900 330

32 2700 230

33 2300

31 E 2000

200

170

29 E 2400 190

 . 

400 13 _ 

450 " ~~ l" " 1

 2*52 786 --I 3378

- 

41

36

28

17

20

27

28

34

81

78

66

53

42

39

37

37

32

26

19

16

12

16

14

14

13

11

12

16

16

14

14

909

DECEMBER

Suspen

Mean

tration

(ppm)

1900

E 1500

E 1500

E 1500

E 1500

E 1500

E 1500

E 1500

1500

E

E 26000

E 13000

E 9000

E 6600

5000

E 3400

E 1800

E 700

660

670

660

E 700

E 700

E 700

E 600

E 600

630

E 700

E 700

37000

30000

MARCH

,- 

3300

E 2600

E 2100

E 2000

E 2000

E 2000

1600

E 2500

E 60000

E 80000

E 50000

E 30000

E 24000

E 18000

E 18000

E 15000

13000

12000

6500

4500

2200

3600

4400

3700

1900

1000

1000

1100

840

1500

1700

ded sediment

Tons

per 

day

110

85

81

77

77

77

77

77

81

B 8900

7900

2200

1300

940

630

400

210

76

57

45

50

45

81

66

42

44

39

53

74

S 61000

S 20000

104894

 _

370

250

160

92

110

150

120

230

14000

17000

9200

4300

270Q

1900

1800

1500

1100

840

330

190

71

160

170

140

67

30

32

48

36

57

64

57217

E Estimated.

S Computed by subdividing day.

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

PARIA RIVER BASIN Continued 

9-3820. PARIA RIVER AT LEES FERRY, ARIZ. Continued

Suspended

APRIL

Suspen

Mean

Day dis. l Mean

charge ' concen-

(cfS) ' '("p'mT

1.. 14 1800

2.. 12

3..I 7.6

4.. 9.8

1100

730

5.. 11 2100

6..

7..

8..

13

12

12

9.. 11

2800

2000

C 370

C 370

10.. 9.4 C 400

11..

12..

13..

11 C 400

13

14

14.. 13

15... 11

16.. 6.9

C 770

C 770

C 370

C 370

_

17.. 5.5 C 100

18.. 6.6 C 100

19.. 9.4 C 100

20. 15 2800

21.. 14 2500

22.. 14 1900

23.. 12 ; 1500

24..

25..

7.6! 1300

6.6 C 530

26.. 5.5 C 530

27.. 5.0 C 430

28.. 4.5 C 430

29.. 4.2 C 72

30.. 4.0 C 72

31.. -^

Total 294.6

JULY

1..

2..

3..

4..

4.5 !c 3

4.5|C 3

3. SIC 3

3.5'C 3

5.. 3.2 C 3

6.. 3.2

7.. 3.2

8.. i 3.0

9.. 2.8

_

C 12

C 12

C 12

10.. 3.2 C 12

11.. 3.0

12..

13..

14..

_

3.8 

2.8 

2.5 

15.. 2.7 C 12

16.. 3.2 C 12

17.. 3.2 C 12

18..

19..

4.8 C 15

3.8 C 15

20.. 3.5 

21.. 4.0

22.. 4.2

c a

C 8

23.. 5.5 C 8

24.. 5.5 53

25.. 60 260OOO

26..

27..

28..

29..

30..

31..

49

24

15

76

230000

140000

110000

220000

48 160000

38 1100OO

 -1 - - - i 

Total 397.1

Total discharge for yeai

Total load for year (tot

sediment, water year October 1965 to September 1966 Continued

r -

MAY

ded sediment

Mean

per ! charge

li

68

55

23

19

62

98

65

12

11

4.0

4.0

4.0

4.0

4.0

4.0

4.2

4.8

4.5

10 4.2

1

12 1 5.2

27 14

29

13

11

10

6.6

5.0

4 4.2

1 4.0

2

3

110

4.0

4.0

Suspended sediment

i

Mean _

tration 

(ppm)

C 26

C 26

C 24

C 24

C 29

C 29

C 13

C 13

13

C 9

C 9

760

C 1500

C 1500

500

C 40

C 40

day

0.3

.3

.3

.3

.3

Mean

dis-

(cfs)

3.0

3.2

3.2

3.2

3.2

.3 3.8

.1 ; 3.8

.2 i 1 4.0

.2 4.2

.1 4.2

.1 3.5

29

40

27

3.2

3.0

3.2

7 3.5

.5 3.5

.4 3.8

.2 || 3.5

.2 i 3.5

4.2 .2 3.5

94 4.2 .2 , 3.5

72 4.8

49 4.2

27 4.2

9 4.2

8

6

5

3.8

3.8

3.8

.8 3.2

.8 i 3.2

~ ( 3 ' 2 i

C 17 .2

C 17 I .2

C 17| .2

C 17

C 10

C 10

C 10

C 10

 _

906.6 145.5 

3.5

3.2

3.5

.2 3.2

.1 3.2

.1

.1

JUNE

Suspended sediment

 _ _ - _ 

Mean

concentration 

(ppm)

C 11

C 11

C 11

C 11

C 11

C 11

C 11

C 20

C 20

C 20

C 20

C 20

C 5

C 5

Tons

day

0.1

.1

,1

.1

. 1

.!

.1

.2

.2

.2

 2

.2

.2

T

T

C 5' T

C 5

C 5

C 31

C 31

C 31

C 31

C 31

C 4

C 4

C 4

3.5K 4

3.5

.1 3.5

.1 3.8

.1 

-_ - \- - . _ --_

108.6 | 104.4

C 4

.1

T

.3

.3

.3

.3

.3

C 3

C 3

 1 

1 I 

3.4

| AUGUST SEPTEMBER

i 17

9.8

66

50

25

55000 ! 2600 T 169

18000 | *80 36

130000 S 40000 18

220000 S 41000 15

.1 13 58000

. 8.0 13000

9400 11

2100

280

8.5

5.5

. 8.0 37000 830 4.0

6.6

t

.

8000

4.5 1200

5.6 12000

4.2 4000

140

15

3.5

2.7

S 360 ' 2.2

45 5.1

. 4.5| 5000 61 , 18

. 7.5 16000 'S 710 i 9.8

. ; 5.0 7000

. 10

9.8

. 11

.2 14

.1

.1

.1

j

.8

110000

35000

10000

61

30

14

11

8.3

7.6

7.2

5.2

4800 |l 3.5

S 900OO ; 3.6

23000 j 4.0

7000

2300

95 6.6

190 6.2

61 4.8

14000 ' 420 4.0

13000

160000

220000

130000

63000

24000

17000

3000

420

500

500

12000 20 26000

284802.8 1 454.9

490

S 46000

20000

5300

1900

12

93

31

21

16

540 39

350 23

58 16

14 8.3

4 8.6

5

5

S 3300

7.6

8.0

176749 613.4

is) .....................................................

190000 S 160000

130000 14000

 l 2700

 2400

30000

5500

890

130

2000 30

700 8

300 3

150 1

120 .7

1600 S 69

21000 1000

12000

3500

320

62

1300 22

650 8

160 2

19000 S 1100

aaooo s 32000

53000 4600

45000 2600

29000

67000

45000

33000

4000

2000

4000

1000

-

1300

S 9800

2900

1500

90

46

82

22

237685.7

....... 1338100.2

S Computed by subdividing day.

T Less than 0.05 ton.

C Composite period.
PARIA RIVER BASIN Continued 

9-3820. PARIA RIVER AT LEES FERRY. ARIZ. Contin

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

_____________________P, pipet; S, sieve; V, visual accumulation tube; W, in distill

tI7ntAW

Date of collection

Nov. 23, 1965.....

Time 

(24 hour)

1415 

1830 

2130 

1430 

1115

1645 

2045 

1630 

1040 

1030 

1220

Water 

temperature 

(°F)

42 

46

71 

72 

84

Sampling 

point

Discharge 

(ds)

1670 

1490 

848 

143 

123

24 

25 

121 

196 

35 

7. 6

Sediment 

concentration 

(ppra)

220000 

152000 

112000 

47500 

36500

1290 

9190 

555000 

260000 

147000 

11300

Sediment 

discharge 

(tons per day)

992000 

611500 

257400 

18340 

12120

83.6 

620 

181300 

137600 

13890 

232

Perc

0.002

15 

17 

22 

49 

52

68 

64 

13 

24 

45 

67

0.004

19 

20 

28 

63 

65

86 

78 

16 

29 

56 

86

0.00
LITTLE COLORADO RIVER BASIN

9-4012. LITTLE COLORADO RIVER AT CAMERON, A

LOCATION.--Lat 35°52'40", long 111°24'40", at bridge on U.S. Highway 89 at Camer

from gaging station which is 3 miles downstream from Coconino damsite, 9.5 mi

miles northwest of Cameron, and 45.5 miles upstream from mouth.

DRAINAGE AREA. 26,500 square miles, approximately, upstream from gaging station

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1958. 

Specific conductance: October 1964 to September 1966. 

Water temperatures: October 1951 to September 1966. 

Sediment records: October 1947 to September 1966.

EXTREMES, 1965-66. Specific conductance: Maximum daily, 1,600 micromhos on sev

minimum daily, 340 micromhos Apr. 6.

Sediment concentrations: Maximum daily, 200,000 ppm Aug. 30; minimum daily, n

Sediment loads: Maximum daily, 640,000 tons Mar. 18; minimum daily, 0 ton on 

EXTREMES, 1947-66. Specific conductance (1964-66): Maximum daily, 2,220 microm

micromhos Apr. 29, 1965.

Sediment concentrations: Maximum daily, 200,000 ppm Aug. 30, 1966; minimum da

Sediment loads: Maximum daily, 2,580,000 tons Sept. 21, 1952; minimum daily,0 

REMARKS. Appreciable inflow, mostly from Moenkopi wash, may occur between sampl

periods of local storm runoff. Sediment loads are computed using discharge a

loads from Moenkopi Wash. No flow May 7 to July 29.

Specific conductance (micromhos at 25°C), water year October 19

October November December January February

450

410

March

350

12CO

330

April

360

430

380

460

470

470

480

490

480

600

560

1200 

11JO
COLORADO RIVER BASIN

0001 | |

13 SSS

114 4 1

 4" -4" (*l fH O |

:x£ se a
QUALITY OF SURFACE WATERS, 1966

LITTLE COLORADO RIVER BASIN Continued 

9-4012. LITTLE COLORADO RIVER AT CAMERON, ARIZ. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

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..

Total

1..

2..

3..

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..

Total

OCTOBER

Mean 

discharge

(cfs)

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

33

19

8.2

28

46

30

20

11

6.1

3.4

2.2

1.6

.6

.2

209.6

Suspended sediment

Mean

concentration 

(ppm)

_

_

_

 

_

65000

68000

67000

66000

60000

53000

50000

41000

28000

Tons

per 

day

4

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

6500

3700

1400

B 5100

8800

5600

3700

1800

910

480

250

120

16

3

38384

JANUARY

2670

4620

8290

4430

1570

912

746

608

510

415

360

324

279

254

238

216

171

165

162

141

135

110

110

100

95

90

90

85

85

80

80

28141

27000

24000

25000

17000

15000

11000

10000

9300

9000

7600

6300

6600

5900

4800

4000

3400

2900

3000

3800

3500

4000

2*00

1200

570

550

540

620

950

960

1100

1300

-

S 210000

300000

560000

200000

64000

27000

20000

15000

12000

8500

6100

5800

4400

3300

2600

2000

1300

1300

1700

1300

1500

710

360

150

140

130

150

220

220

240

280

1450400

NOVEMBER

Mean 

discharge

(cfs)

.5

.5

.6

.4

.1

.2

.1

.6

.7

.8

.6

.8

1.0

1.0

1.0

1.4

1.8

2.2

2.4

2.4

2.2

2.2

2.8

2.6

5.0

8.6

34

839

674

385

1974.5

Suspended sediment

Mean

concentration 

, (ppm)

_

_

__

_

31000

28000

22000

~

Tons

per 

day

7

7

8

5

1

3

1

8

9

10

8

10

10

10

10

20

20

30

30

30

30

30

40

40

70

100

900

B 70000

51000

23000

145447

FEBRUARY

91

80

88

88

93

93

99

101

10*

79

73

75

70

69

70

52

38

52

65

64

62

59

62

86

91

91

95

95

2185

1400

1300

1600

2200

1900

1700

1400

1400

1500

1200

600

550

600

600

550

650

850

920

1000

1100

800

400

400

400

350

410

810

1200

-

340

280

380

520

480

430

370

380

420

260

B 120

110

B 110

110

100

91

87

130

180

190

B 130

64

67

93

86

100

210

310

6148

DECEMBER

Mean 

discharge

(cfs)

262

183

143

110

91

75

65

56

53

270

69

1440

1480

800

620

590

450

350

300

200

150

140

130

912

1460

550

350

300

275

250

225

12349

Suspended sediment

Mean

concentration 

(ppm)

16000

1300C

11000

12000

10000

7900

7500

6500

4900

15000

14000

110000

67000

45000

24000

21000

19000

16000

18000

13000

14000

14000

13000

22000

37000

34000

36000

39000

27000

22000

17000

Tons

per 

day

11000

6400

4200

3600

2500

1600

1300

980

700

S 16000

2600

S 520000

280000

100000

40000

33000

23000

15000

15000

7000

5700

5300

4600

S 100000

B 150000

52000

35000

33000

20000

15000

10000

1514480

MARCH

97

99

91

93

122

141

119

112

200

442

266

433

1280

1530

1820

2230

2930

3070

2880

2540

2150

1970

1830

1630

1260

969

740

650

698

656

668

33716

1000

3000

6500

6000

10000

17000

17000

16000

16000

19000

22000

20000

20000

28000

51000

62000

61000

74000

54000

15000

13000

16000

9000

8500

10000

9100

9400

9900

8200

7000

5500

-

260

800

1600

1500

3300

6500

5500

4800

8600

23000

16000

S 29000

69000

120000

260000

390000

500000

640000

440000

100000

75000

85000

44000

37000

34000

24000

19000

17000

15000

12000

9900

2991760

S Computed by subdividing day.

B Computed from estimated-concentration graph.
COLORADO RIVER BASIN

LITTLE COLORADO RIVER BASIN Continued

9-4012. LITTLE COLORADO RIVER AT CAMEROH, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

1?..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12'..

13..

14..

15. .

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

848

848

830

824

806

758

650

465

351

279

220

209

198

186

165

149

116

104

95

75

65

55

45

40

35

30

30

?5

25

20

8546

Suspended sediment

Mean

concentration

(ppm)

7200

7700

9100

9500

7400

6400

6700

6900

5600

4300

4500

4300

3700

3500

3200

2200

2600

3100

2500

1500

1400

1300

1200

1000

1000

710

890

420

210

400

Tons

per 

day

16000

18000

20000

21000

16000

13000

12000

8700

5300

3200

2700

2400

2000

1800

1400

890

810

870

640

300

250

190

150

110

94

58

72

28

14

22

147998

JULY

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

99

393

492

_

~

_

__

_

_

 .

_

~

_

40000

110000

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

S 14000

S 160000

174000

MAY

Mean 

discharge

(cfs)

14

10

7.8

4.7

1.8

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

38.7

Suspended sediment

Mean

concentration

(ppm)

340

250

260

190

130

120

--

_

_

~

_

-_

Tons

per 

day

13

7

5

2

1

T

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

JUNE

Mean 

discharge

(cfs)

0

28

AUGUST

490

296

515

558

351

195

209

75

35

20

230

583

162

56

870

1300

692

460

328

146

84

44

43

30

20

20

34

504

106

59

312

8827

looooo

75000

110000

120000

82000

54000

83000

96000

37000

35000

43000

87000

100000

100000

93000

100000

98000

90000

83000

86000

62000

70000

51000

52000

46000

47000

44000

100000

88000

200000

140000

~

S 160000

S 69000

S 170000

190000

81000

29000

49000

21000

3600

2000

S 84000

S 160000

47000

16000

S 280000

380000

200000

120000

76000

35000

15000

8600

6100

4400

2600

2600

4200

S 230000

27000

37000

S 110000

2620100

0

Suspended sediment

Mean

concentration

(ppm)

Tons

per 

day

0

SEPTEMBER

1480

530

238

121

73

55

32

19

11

5.4

2.6

66

10

4.0

.7

.1

521

927

302

149

152

100

231

226

140

80

50

30

23

24

5602.8

120000

80000

72000

63000

58000

54000

51000

48000

57000

87000

90000

90000

_

82000

86000

83000

84000

 .

~

69000

100000

110000

 -

 .

S 540000

120000

48000

21000

12000

8300

4600

2600

1800

1400

680

B 17000

2200

900

200

20

120000

210000

73000

35000

36000

22000

67000

44000

24000

15000

14000

9600

6700

7000

1464000

Total discharge for year (cfs-days) .................................................... 102081.6

Total load for year (tons) ............................................................. 10552745

S Computed by subdividing day.

T Less than 0.50 ton.

B Computed from estimated-concentratic graph.
LITTLE COLORADO RIVER BAsiN conti

9-4012. LITTLE COLORADO RIVER AT CAMERON, ARIZ. C

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Time 

(24 hour)

1530 

1530 

1130 

0800

1230 

1830 

1330 

1830 

1500

Water 

temperature

(°F)

65 

70 

45 

36

38 

63 

65 

73

Sampling 

point

Discharge

(cfs)

50 

1 

300 

500

400 

3000 

800 

200 

100

Sediment 

concentration 

(ppm)

68300 

11700 

12600 

19800

58300 

60800 

6780 

4560 

2770

Sediment 

discharge 

(tons per day)

9220 

31.6 

10210 

26730

62960 

492500 

14640 

2460 

748

Perc

0.002

82 

99 

78 

47

66 

66 

36 

34 

30

0.004

96 

99 

87 

60

77 

80 

40 

43 

35

0.00
COLORADO RIVER MAIN STEM

9-4025. COLORADO RIVER NEAR GRAND CA

(Irrigation network station

LOCATION. Lat 36°06'05", long 112°05'10", at gaging station in Grand Canyon National Park at Kaibab 

northeast of Grand Canyon, Coconino County, 26 miles downstream from Little Colorado River, and 26

DRAINAGE AREA. 137,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1925 to November 1942, September 1943 to September 196

Water temperatures: October 1936 to October 1942, September 1943 to September 1966.

Sediment records: October 1925 to November 1942, September 1943 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 4,637 ppm Feb. 1-28; minimum, 372 ppm Oct. 1-31.

Hardness: Maximum, 296 ppm Feb. 1-28; minimum, 188 ppm Oct. 1-31.

Specific conductance: Maximum daily, 1,140 micromhos Feb. 22; minimum daily, 580 micromhos Oct. 20

Water temperatures: Maximum, 72°F on several days during August and September; minimum, 40°F Jan. 

Sediment concentrations: Maximum daily, 9,800 ppm Jan. 4; minimum daily, 43 ppm Oct. 4, 31.

Sediment loads: Maximum daily, 330,000 tons Jan. 4; minimum daily, 620 tons Oct. 4. 

EXTREMES, 1925-42, 1943-66. Dissolved solids: Maximum, 1,890 ppm Sept. 21-30, 1934; minimum, 225 pp

Hardness: Maximum, 965 ppm Sept. 13, 1961; minimum, 127 ppm June 11-17, 1926.

Specific conductance (1937-42, 1943-66): Maximum daily, 2,900 micromhos Sept. 6, 1940; minimum dai

Water temperatures (1936-42, 1943-66): Maximum, 88°F July 17, 1944; minimum, freezing point on sev

1955.

Sediment concentrations: Maximum daily, 138,000 ppm Sept. 13, 1927; minimum daily, 16 ppm Dec. 25-

Sediment loads: Maximum daily, 27,600,000 tons Sept. 13, 1927; minimum daily, 88 tons June 28, 196

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K)

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. -31, 1965. . 

Nov. -24........

Nov. 5-30 ......

Jan. -31, 1966. . 

Feb. -28 .......

Mar. -31 ........

May 1 31 .........

Sept. 1-30.. .....

Weighted average

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge 

(cfs)

10980 

10260 

10420 

9568 

8597 

9431

11680 

14530 

16450 

13300 

11350 

10110 

10480

11405

~

Silica 

(SiO,)

11 

11 

ll 

12 

12 

12

12 

12 

13 

13 

13 

14 

12

12

12

379

Iron 

(Fe)

Calcium 

(Ca)

50 

51 

63 

64 

76 

78

79 

86 

74 

72 

70 

70 

70

71

70

2180

Magnesium 

(Mg)

15 

17 

17 

20 

20 

25

22 

19 

24 

23 

23 

21 

22

21

21

647

Sodium 

(Na)

56 

57 

72 

81 

96 

103

94 

88 

86 

83 

84 

88 

84

83

83

2570

Potassium 

(K)

4.0 

4.7

-

_

~

Bicarbonate 

(HCOS)

134 

136 

158 

162 

182 

174

174 

170 

164 

160 

164 

172 

170

164

164

5040

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

-

_

~

Sulfate 

(S04 )

123 

127 

162 

177 

206 

246

226 

237 

234 

221 

209 

204 

207

204

202

6290

Chloride 

(Cl)

50 

53 

60 

69 

81 

84

78 

68 

64 

65 

69 

69 

68

68

68

2080

Fluoride 

(F)

0.3 

. 3

_

Nitrate 

(NO

1. 

1. 

2.

2. 

2.

2.

2.

2.

3.

3.

3.

2.

2.

2.

2.

81
COLORADO RIVER MAIN STEM Continued

9-4025. COLORADO RIVER NEAR GRAND CANYON, ARIZ. C

Specific conductance (micromhos at 25°C), water year October 1

Day

I.. ...

2.....

3.....

<».....

a.....

13.....

15..... 

16.....

21... ..

23.....

26.....

28..... 

29.....

30..... 

31.....

A\ erage

October

627 

613

697

641

610

581

611

608

617

62<i 

616

622

November

ol» 

631

616

628

639

653 

658

680

759

760

725

December

740 

723

746

786

815

811

806

815

822

364

947

874 

898

820

January

899

753

946

938

913

978

909

923

943 

983

935

February

991

948

-

947

983 

980

1060

1050

1310

March

1010

986

ion

1040

1030

1000 

945

870

8P?

900

922

947

945

962

April

950

939

955

95? 

974

977

~

942

929

926

9<»d

May

930

9"0 

9-.0

9 t O

<U2

907

912

--

R7f

903

h70

9C9
COLORADO RIVER BASIN

ift irt 4 4

II 4 <n II

4 4 IT, 4

2 SJ

K W > I-- 00 I

irtirt 4**^ *-<o eo* tf\irt 44 44 4

i I

<O rf^ ^ O O O
QUALITY OF SURFACE WATERS, 1966

COLORADO RIVER MAIN STEM Continued 

9-4025. COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

, OCTOBER

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10. .

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

'

Mean

discharge

(cfs)

10700

10200

5870

5360

6660

11700

11600

11700

9880

9450

9070

8240

9460

11200

10600

11200

10800

14700

16000

15500

14900

13400

12200

11200

11100

11500

10900

12000

11200

11300

10700

Suspen

Mean

(ppm)

81

105

82

43

60

C 130

C 130

C 130

C 45

C 45

45

45

45

45

45

45

45

240

760

410

210

210

110

29O

250

180

120

83

67

83

4t

Total ! 340290

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

7210

7340

11100

12300

7460

6470

7220

7280

6560

4890

7110

7580

BOZO

8300

8950

7230

5480

6860

8140

10800

11800

100OO

8070

5420

9060

11200

11400

11000

11100

12400

8760

266510

ded sediment

per 

day

2300

2900

1300

620

1100

4100

4100

4100

1200

1100

1100

1000

1200

1400

1300

1400

1300

9500

33000

17000

8500

7600

3600

8800

7500

5600

3500

2700

2000

2500

1200

1*4520

JANUAftY

370

6800

97OO

9»00

50OO

2200

110O

800

7*0

3»e

520

320

240

270

~

_

_

800

580

260

450

1200

700

600

1000

350

-

7200

130000

290000

330000

100000

38000

21000

16000

13000

5200

10000

6600

5200

6000

7200

5900

3700

5600

6600

12000

54000

22000

13000

S 3900

S 13000

36000

22000

18000

18000

33000

8300

1260400

NOVEMBER

discharge

(cfs)

Suspen

Mean

concen- 

(ppm)

9800 C 60

10300

10600

11100

11600

11200

10600

9490

11000

11700

11300

11100

11300

C 60

C 60

C 60

C 60

C 60

C 60

C 60

C 60

C 60

C 60

C 60

C 60

8780 C 60

7910 C 60

9290 C 60

10600 C 60

9720 C 60

9130 C 100

9340 C 100

9310 C 100

8840 180

10300 200

11900 380

11300 3700

9000 1800

10700

10500

10400

10600

308710

1400

1200

1300

2400

ded sediment

Tons

per 

day

1600

1700

1700

1800

1900

1800

1700

1500

1800

1900

1800

1800

1800

1400

1300

1500

1700

1600

2500

2500

2500

4300

5600

12000

110000

44000

40000

34000

36000

69000

392700

DECEMBER

discharge

(cfs)

10700

10500

11000

9300

8340

7210

8740

9570

9740

9560

9580

9840

14200

10400

11000

11400

10500

11100

9020

8390

9300

12000

9250

9830

9490

5730

4600

7340

9740

9430

9800

296600

FEBRUARY

j - - _ _

12700 550

11800 450

11700 550

11400

11400

400

11100

7730

10200

11100

11500

12400 600

13500 550

13100 450

9600 270

11200 250

11400 280

12000 440

9690 250

8010 C 80

5450 'C 80

3560 : C 80

5400 C 80

5860 C 80

5840 C 80

6550 C 80

7360 ! C 80

7290 'C 80

5240 'C 80

 ' 

 

264080

19000

14000

17000

12000

12000

12000

5200

8300

12000

16000

20000

20000

16000

7000

7600

8600

14000

6500

1700

1200

770

1200

1300

1300

1400

1600

1600

1100

240370

9170

9970

10500

11800

12000

10900

6450

9870

11100

11300

11900

12500

11000

8740

12900

13900

14000

15200

15800

14100

10700

12200

13400

11900

12400

11300

9410

9340

12700

13800

11800

Mean

(ppm)

1100

620

750

C 180

C 180

C 180

C 180

C 180

C 180

C 180

C 180

S

S

9000

3000

C 370

C 370

370

370

370

370

370

6700

6500

3000

1300

760

720

ded sediment

per 

day

32000

18000

22000

4500

4000

3500

4200

4600

4700

4600

4600

16000

240000

250000

89000

31000

17000

12000

9000

8400

9300

12000

9200

9800

9500

looooo

81000

59000

34000

19000

19000

1090900

MARCH

280

280

280

360

~~

150

44

250

480

450

480

1400

2000

3000

3100

3000

3200

3700

3200

3200

2400

2300

2200

1600

1500

1200

750

700

800

750

350

362050

6900

7500

7900

11000

6500

4400

770

6700

14000

14000

15000

47000

59000

71000

110000

110000

120000

150000

140000

120000

69000

76000

80000

51000

50000

37000

19000

18000

27000

28000

11000

1487670

S Computed by subdividing day. 

C Composite period.
COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

9-4025. COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued 

APRIL 'i MAY , JUNE

, Suspended sediment I j Suspended sediment f ' Suspended sedii

~| Mean f

Tons

Mean | r -~ 1 Mean | -------, M,

dis- Mean Tong djs_ Mean | Tons djs. M

charge concen- , ^ ^ charge concen- | ^ .' cK

1..

2..

3..

*..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21. .

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

*..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

Total

Total

11300

12800

11200

1*700

1**00

13300

1*OOO

13700

1*000

1*500

1*000

15000

15200

15800

16100

11600

1*300

12*00

15500

15600

15800

15700

1*500

13000

12*00

15600

15800

17*00

18000

18300

_ 

*35900

13700

10100

9220

8250

9970

12200

12600

12*00

12100

12000

12300

11900

12000

131OO

12200

11*00

10500

13000

11000

10900

10*00

11100

12*00

12100

10500

10700

10700

10700

11000

11000

10*00

3518*0

load for y

tration

(ppm)

300

750

750

8*0

650

650

*50

300

350

*90

500

510

250

3*0

250

5*0

**0

310

200

500

*50

900

850

100

f -

--

JULY

_

50

50

50

50

50

50

50

50

C 50

C 50

_ 

700

300

1*0

*3

89

52

38

60

52

250

200

900

250

180

1000

-

ear (tor

day

i 9200

12000

12000

20000

29000

27000

320OO

2*000

25000

18000

11000

1*000

20000

21000

22000

7800

13000

8*00

23000

19000

13000

130OO

9800

8800

6700

21000

19000

*2000

*1000

4900

5*6600

3700

1*00

1200

1100

1800

1600

1700

1700

1600

1600

1700

1600

*900

25000

9900

*300

1200

3100

1500

1100

1700

1600

3300

*900

5700

7200

5800

26000

7*00

5300

28000

168100

s)..........

f i

18600

18100

18100

18*00

18200

17600

16300

16200

15300

16*00

16000

1*700

15500

1**00

1*600

1**00

1*500

15300

17600

17200

17700

18300

15500

1*500

17200

18*00

15200

17100

16100

16200

509800

10600

12100

12000

12100

12*00

12100

12100

9690

11600

11800

11500

11700

11500

11000

9810

12300

11*00

13300

11800

11300

11000

9150

11300

10600

10800

10800

11200

10500

10*00

10800

11100

3*9750

tration

(ppm)

650

600

5*0

670

6*0

*60

330

380

300

550

250

230

380

220

220

160

600

750

_

2*0

2*0

*30

*00

3*0

280

260

AUGUST

800

3500

2800

2600

*200

_

3500

3500

2700

1200

1100

600

600

500

*00

5000

9500

6000

3200

1*00

1300

1600

1600

*50

300

260

100

2200

1000

_

per

day

33000

29000

26000

33000

31000

22000

i 15000

17000

12000

2*000

11000

9100

16000

8600

8700

6200

7800

25000

36000

28000

2*000

15000

10000

9*00

20000

20000

10000

16000

12000

11000

 - - 

556800

23000

110000

91000

85000

1*0000

110000

110000

92000

85000

38000

3*000

19000

19000

15000

11000

S 230000

290000

220000

100000

61000

*2000

32000

*9000

*6000

13000

8700

7900

*300

2800

6*000

30000

2182700

1 t

i '^

16600

16400

16200

16600

17200

16900

17000

12300

9390

1*200

1*800

1*300

1*200

1*000

13600

12600

| 13600

16200

13500

10900

12*00

10*00

10600

11000

10200

10800

7590

10900

12000

12700

_

 _ 

399080

<

11600

11100

9120

8530

6920

7560

8690

8760

8960

11100

11500

10200

11000

7280

7*70

8670

10500

10300

10100

13100

13100

13100

13*00

13700

13000

10000

12200

11800

10300

11200

314260

tration

(Ppm)

2*0

150

250

300

300

2*0

2*0

120

40

220

280

180

80

_

160

320

95

*0

90

25

51

60

90

_

900

300

200

150

__

EPTEMBEF

500

1200

600

*00

300

250

_

100

100

*50

200

78

52

--

3500

2200

2000

1800

1900

1100

900

950

*00

300

___J2J

per

day

11000

6600

11000

13000

1*000

11000

11000

*000

1000

8*00

11000

6900

3100

3800

3700

3*00

5900

1*000

3500

1200

3000

70C

1500

1800

2500

17000

18000

8800

6500

5100

 

212*00

16000

15000

9900

9200

6500

2*000

1*000

9500

7300

7500

6200

2800

3000

8800

*000

1800

1500

2800

55000

120000

78000

71000

65000

70000

51000

30000

30000

30000

11000

9100

769900

9052760

S Computed by subdividing day. 

C Composite period.
COLORADO RIVER MAIN STEM Continued 

q-4095 rni nRAno RTVKR AT GRAND CANYON. ARIZ. Contin

Periodic determinatigns_of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decan

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Mar. 17, 1966. ....

Time 

(24 hour)

1500 

1445 

1500

Water 

temperature 

(°F)

64 

54 

52

Sampling 

point

Discharge 

(cfs)

13000 

16000 

17400

Sediment 

concentration 

(ppm)

98 

5830 

3460

Sediment 

discharge 

(tons per day)

3440 

224900 

162600

Percen

0.002

20 

46 

30

0.004

20 

57 

34

0.008 

Particle-size analysis of bed material, water year October 1965 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decan

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Oct. 29, 1965. ....

Time 

(24 hour)

1300

Water 

temperature 

(°F)

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Percen

0.016 0.031 0.062

0

BRIGHT ANGEL CREEK BASIN 

9-4030. BRIGHT ANGEL CREEK NEAR GRAND CANYON, ARI

LOCATION. Lat 36°06'00", long 112°05'35", at gaging station 1,000 feet upstream from mouth, and 11 mil

DRAINAGE AREA. 101 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1952 to September 1966.

Chemical analyses, in parts per million, water year October 1965 t

Date 

of 

collection

Nov. 12, 1965. . .. 

Mar. 8, 1966. ....

Mean 

discharge 

(cfs)

18 

19 

99 

27 

18 

19 

18

Silica

(SIO,)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOJ

226 

224 

132 

170 

214 

198 

194

Carbonate 

(COJ

0 

0 

0 

6 

0 

0 

0

Sulfate 

(S04)

Chloride 

(Cl)

3.3 

4.3 

1.8 

2.8 

3.3 

3,0 

3.0

Fluoride 

(F)

Nitrate 

(NOJ
COLORADO RIVER BASIN

VIRGIN RIVER BASIN 

9-4060. VIRGIN RIVER AT VIRGIN, UTAH

LOCATION. Lat 37°11'55", long 113°12'25", at gaging station 1.1 miles west of Virgin, Washington

County, and 2.3 miles downstream from North Creek. 

DRAINAGE AREA. 934 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1956.

Water temperatures: October 1950 to September 1956, Hay 1962 to September 1964. 

Sediment records: Hay 1962 to September 1966. 

EXTREHES, 1965-66. Sediment concentrations: Haximum daily, 58,000 ppm Sept. 1; minimum daily,

21 ppm Hay 30.

Sediment loads: Haximum daily, 210,000 tons Nov. 23; minimum daily, 6 tons Hay 30, June 4. 

EXTREMES, 1962-66. Sediment concentrations: Haximum daily, (partly estimated) 140,000 ppm

Sept. 5, 1965; minimum daily, 21 ppm Hay 30, 1966.

Sediment loads: Haximum daily, (estimated) 430,000 tons Aug. 12, 1962; minimum daily, 6 tons 

Hay 30, June 4, 1966.

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

~ 

OCTOBER

Suspended sediment

Mean

dig- Mean

charge concen-

(cf.) tratlon .

(ppm)

1.. 96 470

2..

3..

*..

5..

6..

7..

8..

9..

10..

11..

1?..

13..

1*..

14..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26. .

90 690

88 560

B6 *80

88 , 560

«5

90

90

86

88

88

92

92

98

96

175

727

no

123

115

112

110

112

110

117

600

520

360

300

250

170

170

190

210

250

6000

7200

1100

670

700

610

550

470

410

480

112 490

27.. 106 430

?8.. ; 10* 490

29.. 100 560

30.. 102 440

31.. 106

Total 331*

250

Tons

per

day

120

170

130

NOVEMBER

Mean

discharge

(cfs)

104

10*

106

110 , 106

130 108

1*0 110

130 1 112

87

70

115

117

59 117

40 || 119

42 121

*7 121

56 126

65 209

S 4800 161

S 5*00 711

Suspended sediment

 . - 

Mean Tong

concen- ^

tration 

(ppm)

230

320

300

510

830

590

350

410

360

400

600

630

580

650

3600

2300

13000

390 ! 220 750

220

220

180

160

1*0

120

150

150

120

140

150

120

169 I *00

1*0 1 350

132

1*1

16*0

252

7*9

314

175

148

138

1*0

72 

 13928 1 7025

300

1000

day

65

90

86

150

240

180

110

130

DECEMBER

Mean

discharge

(cfs)

140

132

135

140

138

130

130

132

110 2*4

130 821

190 517

210 245

190 296

220 202

S 2300 183

1000 166

S 33000 145

450 135

180 121

130 128

110 135

380 155

39000 S 210000 155

6400 S 4800 132

17000 S 43000 126

6400 IS 6200 138

1300 610

940

155

380 152

590 220

320 120

__

- 304981

155

720

177

6*80

Suspended sediment

 r _ _ _

Mean

tration 

(ppm)

1 

230

230

310

550

880

870

460

200

1300

8800

5500

1400

2400

1100

500

610

Tons

per

day

87

82

110

210

330

310

160

71

S 2200

S 21000

S 9400

S 1000

1900

600

250

270

660 260

600 220

500 , 160

400 i 140

300

290

500

800

1100

1200

1100

720

490

8700

1200

110

120

210

290

370

450

460

300

210

S 28000

570

 69850

S Computed by subdividing day.
QUALITY OF SURFACE WATERS, 1966

VIRGIN RIVER BASIN Continued

9-4060. VIRGIN RIVER AT VIRGIN, UTAH Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

It.

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..

28..

29..

30..

31..

Total

1..

?..

3..

4..

5..

6..

7..

8..

9..

10..

11..

1?..

13..

14..

15..

16..

17*.

18..

19..

20..

21..

2?..

23..

24..

25..

26..

27..

26..

29..

30..

11^_

Total

r

!

Mean

discharge

(cfs)

152

119

109

107

| 115

126

138

142

138

130

128

176

119

121

126

121

115

110

117

119

110

98

106

112

110

112

119

121

123

128

135

3752

525

590

557

394

348

366

389

399

418

394

404

348

305

309

348

370

399

423

375

322

313

296

276

272

276

309

334

296

292

292

10939

JANUARY

Suspended sediment

i Mean ^

tratfo'ri" per

, (ppm) | da*

* 4 -

840 340

670 220

600 180

540 160

480 150

500 170

510 190

510 200

460 170

390 i 140

340 120

320 110

310 100

310 100

320 110

320 100

330 100

330 98

320 100

300 96

290 i 86

270 71

250 72

240 73

230 68

260 79

300 96

340 110

400 130

520 180

660 240

4159

APRIL

6800 9600

530O 1 8400

4900 7400

1600 1700

1300 1200

I

1400 1400

950 i 1000

2500 ! 2700

2900 1 3300

2300 2400

2500 2700

1400 ! 1300

300 I 250

520 ' 430

2100 2000

2900 2900

1600 1700

1700 1900

1300 1300

850 740

1400 ' 1200

1300 1000

500 370

240 , 180

250 190

380 ' 320

1000 900

610 490

610 480

610 , 480

59930

-

Mean

charge

(cfs)

.1 128

123

119

123

132

164

208

161

132

128

130

123

128

119

117

117

117

130

130

132

138

145

141

135

142

142

135

1 132

'

3775

284

280

260

272

261

257

249

238

246

268

242

228

208

195

166

175

163

161

150

138

138

138

132

132

130

130

130

128

115

112

L ___'»__

5883

FEBRUAR1

Suspen

Mean

concentration 

(ppm)

840

1100

1400

1700

j 1900

_

. 

1500

1000

830

660

1 560

490

i 430

370

310

280

320

400

470

540

610

660

640

590

710

1200

"

MAY

220

1000

1000

190

160

290

330

370

290

240

250

160

100

250

430

400

220

110

100

72

58

93

130

110

71

72

83

65

32

21

27

f

ded sediment

Tons

per

day

290

370

450

560

680

2000

4000

1000

530

350

290

220

1 190

160

140

120

98

98

110

140

180

210

240

240

250

230

260

430

. 

~

13836

170

760

760

140

130

200

220

240

190

170

160

98

56

130

220

190

97

46

40

27

22

35

46

39

25

25 ',

29

22 I 1

10

6

- -i

4314

Mean

discharge

(cfs)

142

145

121

112

117

145

161

192

214

235

253

253

257

261

284

272

253

228

228

238

235

221

205

226

235

242

284

317

385

409

473

7345

112

H5

110

106

106

104

104

102

100

100

96

90

66

61

88

88

94

90

86

92

90

86

88

86

86

83

76

60

83

92 '

2602

 

MARC!

Susper

 -

Mean

concen-

(ppm)

1600

1500

1300

1100

980

1100

2200

4600

5700

5200

7300

7300

8200

8200

11000

9400

3100

1600

1600

1600

1500

3900

2700

2300

1500

1500

2200

3300

4000

5700

5200

~^

JUNE

36

50

34

22

42

58

50

40

34

30

35

58

86

76

47

44

66

95

100

92

84

75

67

59

51

43

36

38

41

44

~ E-

 

i

ded sediment

1 -

Tons

per

day

610

590

420

330

310

430

960

2400

3300

3300

5000

5000

5700

5800

8400

6900

2100

980

980

1000

950

2300

1500

1400

950

980

1700

2800

4200

6300

6600

84190

11

16

10

6

12

16

14

11

9

8

9

14

20

17

11

10

17

23

24

23

20

17

16

14

12

10

8

a

9

11

406
COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued 

9-4060. VIRGIN RIVER AT VIRGIN, UTAH Continued

Su

f

Mean

Day ' discharge

(cfs)

1.. 102

2.. 100

3.. 94

4,. 92

5.. 88

6.. 88

7.. 86

8.. 88

°.. 88

10.. o*

11.. 9ft

12.. 80

I?.. 64

1*.. 61

1?.. 61

16.. 6*

17.. 86

18.. 96

10.. 86

20.. 83

?!.. 85

??.. 86

?3.. , 153

24.. ' 1?6

2S.. ' 102

26.. 98

?7 4 . 9*

28.. 90

29.. 123

30.. i 458 3i.. | no

Total 32*0

Total discharge

Total load for y

spended

JULY

Suspen

Mean

concentration 

(ppm)

51

68

90

110

130

120

120

110

100

93

85

77

75

86

100

110

960

750

200

150

120

200

150OO

4000

600

500

400

300

3900

21000

30000

for year

sediment, water year Oct

ded sediment

~

Tons

day

14

18

21

27

31

29

28

26

24

24

22

17

13

14

16

19

S 320

190

*6

3*

28

*6

S 5200

1*00

170

130

100

73

S 1400

S 34000

11000

54482

(cf s-davsl .

1

1

Mean

discharge

(cfs)

115

105

95

86

86

83

83

106

85

83

81

80

83

85

85

9*

96

106

104

186

115

95

85

82

82

82

84

90

100

120

383

32*5

ober 1965 to September 1966 Con

AUGUST

Suspen

Mean

concentration 

(ppm)

9000

4000

2800

1200

750

700

700

1200

520

*50

*10

*00

*50

520

520

630

660

11000

3500

1BOOO

_

_

. 

 

 

t inued

SEPTEMBER

ded sediment

- ~ -

Tons

per

day

2800

1100

720

280

170

160

160

3*0

120

100

90

86

100

120

120

160

170

3100

980

S 32000

2000

400

200

200

200

200

200

300

500

1000

Mean

discharge '""

322

200

100

i 82

76

74

76

85

88

88

94

96

86

90

100

94

88

74

151

115

81

73

83

7ft

76

70

73

71

68

71

Suspended sediment

 

Mean

concentration 

(ppm)

58000

28000

~~

2000

1300

1400

1400

1*00

1500

1600

1*00

1400

1900

1500

1*00

1300

6600

5000

1500

600

720

850

950

1000

1100

1200

1200

1200

day

50000

15000

1000

600

500

400

270

320

330

330

380

410

330

340

510

380

330

260

S 3100

1600

330

120

160

170

190

190

220

230

220

230

 50000 

 T 98076 2919

ear (tons) ........................................................ ....

78450

786602

S Computed by subdividing day.
VIRGIN RIVER BASIN Continued

9-4060. VIRGIN RIVER AT VIRGIN, UTAH Cont

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; L), d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Oct. 2, 1965. ......

Dec. 17. ...........

Feb. 4, 1966. ......

July 23. ...........

Aug. 18. ...........

Time 

(24 hour)

0945 

1300 

1230 

1730 

0800

0930 

1600 

1615 

1700 

1450

1645 

1300 

0615 

2000 

2000

1830 

1225 

1900 

2000 

2200 

0915

1310 

1745 

2030 

0630 

1015 

1250 

1840

Water 

temperature

(°F)

56 

51 

51 

58 

48

46 

44 

45 

52 

53

75 

71

70

80 

78 

76

68

60 

70 

74

Sampling 

point

Discharge

(cfs)

90 

192 

268 

629 

3900

1220 

142 

130 

214 

284

130 

138 

2130 

224 

D 130

105 

104 

98 

1420 

389 

D 115

D 383 

1460 

735 

322 

280 

90 

98

Sediment 

concentration 

(ppm)

1160 

4630 

7530 

5380 

72800

36200 

678 

1650 

1780 

1180

125 

41600 

55700 

22400 

22000

20200 

32800 

2020 

149000 

114000 

4440

155000 

87200 

75400 

47800 

65600 

1810 

2850

Sediment 

discharge 

(tons per day)

282 

2400 

5450 

9140 

795000

124000 

260 

579 

1030 

905

44 

16100 

332000 

13500 

7720

5730 

9550 

534 

635000 

129000 

1380

178000 

369000 

155000 

43100 

51400 

440 

754

Per

0.002

14 

24 

16 

9

10 

10

21 

6

55 

21 

48 

55

15 

57 

29 

29 

36 

35

31 

14 

24 

41 

51 

10 

59

0.004

17 

33 

22 

11

12 

14

26 

9

70 

28 

63 

65

18 

71 

40 

34 

43 

38

35 

16 

28 

52 

56 

11 

61

0.

D Daily mean discharge .
COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued 

9-4100. SANTA CLARA RIVER ABOVE WINSOR DAM, NEAR SANTA CLARA, UTAH

LOCATION. Lat 37°13', long 113°47', at gaging station 2 miles upstream from Winsor Dam, 2.5 miles 

downstream from Sandy Wash, 8 miles downstream from Magotsu Creek, and 9 miles northwest of Santa 

Clara, Washington County. 

DRAINAGE AREA. 338 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1951 to September 1956. 

Water temperatures: May to September 1962. 

Sediment records: May 1962 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 9,500 ppm Dec. 30; minimum daily,

3 ppm Nov. 12.

Sediment loads: Maximum daily, 17,000 tons Dec. 30; minimum daily, less than 0.50 ton on many days. 

EXTREMES, 1962-66. Sediment concentrations: Maximum daily, 15,000 ppm Sept. 18, 1963; minimum

daily, 3 ppm Nov. 12, 1965.

Sediment loads: Maximum daily, 540,000 tons Sept. 28, 1962; minimum daily, less than 0.50 ton 

on many days.

Suspended sediment, water year October 1965 to September 1966

(Where no concentrations are reported, loads are estimated)

OCTOBER NOVEMBER DECEMBER

Suspended sediment

Mean Mean

Day dis- Mean Tons disSuspended sediment Suspended sediment

; Mean

Mea" Tons discharge concen- pef ] cnarge concen-

(cfs) tration (cfg) tration 

(ppm) y (ppm)

1.. 8.2 18 . 14

per charge

day (cfs)

____ _J

22

2.. 7.1 14 i . 20 17

3.. 7.9 16 . 13 12

4.. 

5..

7.7 16 .6

6..

7..

8..

9..

10..

5.8 9 5

6.3 11 . 5

6.6 12

6.0 12 

18

17

I

15

6 IS

7 15

6.6 12 .8 20

6.3 11 . , 6

11.. 5.2 7 .9

12.. 5.4 8 .6

13..

14..

15..

16..

6.6 12 7.1

5.8 > 9 6.9

5.6 9 7.7

6.3 11 8.8

4

30

43

3 1 39

4 46

6 35

8 27

8 23

17.. 6.9 21 10 8 21

18.. 6.3 11 9.8 8

19.. 5.8 9 11 7

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

6.9 21 11 7

17

13

16

7.1 14 12 7 T 17

6.9 21 13 30 1 20

6.9 21 82 700 20

6.6 12 30

6.6 12 82 3200

6.3 11 34 400

40 18

S 890 18

37 17

6.3 11 26 , 200 14 18

5.8 9 !, 23 ! 180 11 18

6.0 10 22 150 9 21

30.. 6.0 10 24 120 8 427

31.. 6.0 10 |_ 62

Total 199.8 6 496.2 1713 1117

' ~ T

co^ctn T°"°

tration per

/ «_,\ day (ppmj

90 I 5

60

38

3

1

28 1

25 1

26 1

34

42

810

1

2

44

100

4UO

3UO

 5UO

 100

330 24

220

140

110

110

110

14

8

5

4

5

110 5

110 6

110 i 6

110 5

110 5

110 5

110

110

400

9500

900

5

5

23

S 17000

150

18734

S Computed by subdividing day. 

T Less than 0.50 ton.
QUALITY OF SURFACE WATERS, 1966

VIRGIN RIVER BASIN Continued

9-4100. SANTA CLARA RIVER ABOVE WINSOR DAM, NEAR SANTA CLARA, UTAH Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

JANUARY FEBRUARY

Day discharfi

[ ^^

Suspended sediment Su

Mean _ ' ,jj s_ Me

e concen- charge conc

/ x day (cts; (ppm) y (pp

J 1 .

1.. 32 700 60 15

2.. 2

3.. 2

4.. 2

0 620 33 15

1 540 31 14

0 460 25 13

5.. 20 380 20 13

6.. 19 300 15 18

7.. > 1

a.. i

9.. 2

9 230 12 17

7 190 9 13

0 160 9 14

10.. 19 130 7 14

11.. 19 110 6 13

12.. 1

13,. 1

14.. 1

8 96 5 14

7 89 4 13

7 82 4 13

15.. 19 75 4 13

16.. 19 69 4 13

17.. 2

18.. 1

19.. 2

0 62 3 13

9 55 3 14

0 48 2 16

20.. 14 66 2 12

21.. 14 140 5 12

22.. 1

23.. 1

24.. 1

3 230 8 15

3 330 12 12

4 420 16 13

25.. | 16 490 21 13

26.. 17 490 22 12

27.. 1

28.. 1

29.. 1

30.. 1

31.. 1

5 470 19 12

6 440 19 9.7

4 420 16

7 380 17

4 330 12 

Total 552 425 , 378.7 !

spended sediment

1

enion per

m) 1 day

260 10

200 8

160 6

170 6

250 9

420 20

520 24

370 13

170 6

96 4

94 3

92 3

92 3

95 3

100 ' 4

110 4

140 5

240 9

370 16

500 16

610 20

690 28

760 25

800 28

750 26

680 22

600 19

520 14

 

MARCH

Sus

dis- Mea

charge conc<

(ppn

9.7 ' 1

10 3

10 i

10 2

pended sediment

Tons

per

 ^

20 11

20 9

60 7

20 9

9.7 420 11

10 530 14

10 6

9.7 e

10 t

00 16

10 16

00 16

13 710 25

17 780 36

20 a

22 8

28 9

57

30 45

60 ' 51

50 72

200

33 850 76

26 '

20 5

18 5

10 50

90 32

30 26

17 520 24

16 490 21

19 5

17 5

16 <i

70 29

20 24

90 21

13 370 13

12 300 10

12 2 11 ;

11 2

12 2

60 8

50 7

50 7

50 8

13 250 9

354

APRIL I MAY

1.. 1

2.. 1

3.. I 2

4.. 2

5.. 2

6.. 1

7.. 1

8.. 1

9.. 1

10.. 1

11.. 2

12.. 2

13.. 2

14.. 2

15.. 1

16.. 1

17.. ! 1

18.. 1

19.. 1

3 250 9 18

3 260 9 17

3 260 16 i 17

4 260 17 20

2 250 15 I 24

9 230 12 22

8 ' 220 11 22

6 200 9 24

8 190 9 27

9 170 9 27 '

1 140 8 28

2 130 8 25

1 120 7 23

0 130 7 22

8 130 6 21

510 25

440 20

420 19

390 21

370 24

340 20

320 19

310 , 20

340 25

390 28

440 33

450 30

410 25

340 20

260 15

8 130 6 19 1 270 14

5 130 5 19

6 130 6 21

8 130 6 28

20.. 19 120 6 25

21.. 1

22.. 1

23.. 1

24.. 1

450 23

600 34

550 42

390 26

9 110 6 22 240 14

9 96 5 20

8 81 4 19

5 68 3 19

25.. ! 15 60 2 18

26.. 1

27.. 1

28.. 1

29.. 1

30.. 1

31..

Total 1 5*

4 50 2 14

7 ~ 46 14

6 ! 970 42 13

8 840 41 1 12

8 650 32 14

 15

2 364 629

L20 6

74 4

64 3

54 3

50 2

61 2

79 3

LOO 3

L30 ; 5

160 6

- "534 "

512.1 903

JUNE

15 1

15 !

16 :

15 !

80 7

70 7

40 6

20 5

13 110- 4

15 100 4

16

16

17

16 1

97 4

92 4

94 4

10 5

11 130 4

10 !

13 1

11 !

11

12

10

9.7

10

9.4

9.7

9.7

9.4

8.3

7.7

8.6 ,

8.3

8.6

8.6

9.4

 I

349.4

50 i 4

60 6

40 4

99 3

61 2

32 1

22 1

21 1

20 1

18 T

18 T

20 1

24 1

26 1

26 1

23 1

21 T

20 T

19 T

"

84

T Less than 0.50 ton.
COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued

9-4100. SANTA CLARA RIVER ABOVE WINSOR DAM, NEAR SANTA CLARA, UTAH Continued

Suspended sediment, water year October 1965 to September 1966 Continued 1 ,, T ~ ..._. ._L ~ ~~ i mzzr ~ ~ ~~

Me 

Day di

cha

(c

1.. 

2.. 

3..

4..

5..

1

6.. 

7.. 

8.. i 9,.

10..

11.. 

12..

13.. > 14..

15..

16.. 

17.. 

18.. 

19..

20..

21.. 

22.. 

23..

24..

25..

26.. 

27..

28.. 

29..

30..

2L'lj_

JULY AUGUST

Suspended sediment j Suspended sediment )

an - - -- - ^ Mean , - - - 

c±en T°"* dl8- Mea" Tons

rge s '' tration ,ff P : er i charge / r , ctration °"cen- | Jper 

' j (PPm) J ^ (cfs) (ppm) d^

8.3 18 T 

7.4 20 T 

7.4 21 T 

7.1 22 T

7.1 23 T

6.4 23 ' T 

6.2 22 T 

6.2 22 T 

6.0 22 1

6.0 22 7

6.0 22 1

5.8 i 22 1 

4.5 21 | 1 

3.5 19 1 1

3.6 17

4.4 | 18 

5.0 23 

5.0 31 

5.0 | 39

5.4 1 45

4.6 44 i 

4.6 ' 41 

4.8 38

5.4 34

5.2 30

5.2 26

4.4 22

4.2 19 

3.8 19

4.6 20

 L -^ >_ - ______ ______

4.6 21 T 

4.6 20 1 T 

1 3.5 17 T 

3.3 ' 14 T

3.2 12 | T 1

4.1 12 T 

4.1 13 T 

!' 4.1 14 ] T 

3.5 15 T 

2.9 14 T

3.1 13 T 

3.8 12 T

4.4 10 ' T

4.6 9 T ' 

r H 3.3 8 T

r ' 3.8 ; 8 T 

F 3.3 8 T 

r 49 4400 |S 5000 

I 23 4300 |S 460 

1 8.0 9

1 | 5.8 3 

1 5.4 | ~ 2 

T , 4.8 | 2

T ,1 5.8 i 2

T R A. __ t

1 ': 5 # D , ~ £.

T 5.2 1

T 1 5.2 1 T 4.2 T

T , 4.1 20 T 

T 4.1 66 1

T 4.6 110 1

5.0 ' 21 . i

SEPTEMBER

Suspended sediment 

Mean ~ T

dig. Mean T 

charge 1 »-

/ f \ tration ,

(cf8) | (ppm) day

6.4 120 

5.8 94 

5.0 I 79 

4.2 i 88 

5.6 97

5.4 ' 100 I

5.0 89 ! 5.0 72 

5.0 55 

3.9 42

3.9 1 38

3.9 l 38 1 4.1 38 

5.4 38 

5.4 38 1

4.8 38

4.1 37 

4.2 35 

5.8 i 32 

6.4 30

5.8 | 28

5.4 26 

5.6 24 

4.8 24

4.4 25

5.8 27

5.8 28 

5.6 27

5.6 24 

5.4 i 21

 i 

 - - ' - 

___ ._ _ __ _ _ __ __ ___ _ ___ _ _ 1 _ _ 

"" ' 13 11 199.0 1 5487 ' 153.5 , *1

Totall ioo.i ! - __ 

Total discharge for year (cfs-days)

................... 5296.8 

............ .... . 28638

Total load for year (tons) . ............

S Computed by subdividing day. 

T Less than 0.50 ton.
VIRGIN RIVER BASIN Continued 

9-4100. SANTA CLARA RIVER ABOVE WINSOR DAM, NEAR SANTA CLAR

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

, , ,

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Time 

(24 hour)

1725 

0830 

1100 

1210 

0700

1630 

1200 

1830 

0930 

1930

2035 

2040 

2050 

2115 

2135

2320 

0005 

1245 

1315

Water 

temperature

(°F)

55 

54 

48 

40 

41

43 

44 

58 

47 

71

78 

74

Sampling 

point

Discharge 

(cfs)

8.0 

160 

128 

25 

876

198 

20 

26 

19 

26

458 

787 

705 

567 

436

116 

95 

19 

6.2

Sediment 

concentration 

(ppm)

9 

6930 

5480 

117 

19200

4510 

219 

891 

135 

706

51700 

54100 

53100 

45600 

41100

25600 

23000 

858 

132

Sediment 

discharge 

(tons per day)

0.2 

2990 

1890 

8 

45400

2410 

12 

62 

7 

50

66300 

119000 

105000 

72400 

50200

8020 

5900 

44 

2

Perc

0.002

22 

23

17 

15 

8 

8

40 

38 

40 

46

47

56 

60 

60

0.004

26 

32

22 

20 

11 

11

50 

49 

52 

53

57

67 

68 

72

0.00
9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. 

(Irrigation network station)

LOCATION. Lat. 36°53', Long 113°56' , at gaging station 0.4 mile downstream from Beaver Dam Wash, 0.4 

upstream from waterline of Lake Mead at elevation 1,221 feet above mean sea level. 

DRAINAGE AREA. 5,090 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: July 1949 to September 1966.

Water temperatures: October 1947 to September 1966.

Sediment records: October 1947 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 4,190 ppm Aug. 21; minimum, 568 ppm Dec. 11.

Hardness: Maximum, 2,250 ppm Aug. 21; minimum, 400 ppm Dec. 11.

Specific conductance: Maximum daily, 4,650 micromhos Aug. 21, Sept. 1; minimum daily, 1,070 microm

Water temperatures: Maximum, 92°F July 27; minimum, 40°F Jan. 2.

Sediment concentrations: Maximum daily, 84,000 ppm July 30; minimum daily, 300 ppm July 26, 27.

Sediment loads: Maximum daily, 410,000 tons Dec. 30; minimum daily, 40 tons July 26. 

EXTREMES, 1947-66. Dissolved solids (1949-50, 1953-66): Maximum, 4,250 ppm Aug. 12, 1964; minimum, 

Hardness (1949-50, 1953-66): Maximum, 2,250 ppm Aug. 12, 1964, Aug. 21, 1966; minimum, 334 ppm Mar

Specific conductance (1949-66): Maximum daily, 4,650 micromhos Aug. 21, 1966; minimum daily, 734 m

Water temperatures: Maximum, 92°F July 7, 1953; minimum, 35°F Jan. 4, 1949, Jan. 4, 1950.

Sediment concentrations: Maximum daily, 180,000 ppm Aug. 13, 1964; minimum daily, 40 ppm June 16, 

Sediment loads: Maximum daily, 1,740,000 tons Aug. 25, 1955; minimum daily, 6 tons June 16, 20, 19

REMARKS. Additional samples were collected to further define the quality of water at this station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oc . 1-16, 1965..

De . 12-15. ......

Mean 

discharge

(cfs)

62. 9 

166 

200 

135 

116

111 

376 

724 

253 

209

2120 

986 

986 

1120 

340

246 

214 

905 

1510 

454

Silica 

(SiO,)

Iron 

(Fe)

Calcium

(Ca)

Magnesium

(Mg)

Sodium 

(Na)

324 

420 

224 

291 

334

257 

264 

91 

167 

225

91 

102 

153 

94 

161

217 

248 

248 

86 

146

Potassium 

(K)

Bicarbonate 

(HCO,)

190 

312 

275 

296 

332

336 

297 

232 

244 

300

243 

204 

229 

193 

252

318 

324 

281 

196 

237

Carbonate

(cog

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

1180 

965 

650 

810 

941

951 

696 

332 

520 

625

523 

751 

570 

455 

503

614 

662 

599 

301 

445

Chloride 

(Cl)

432 

620 

290 

385 

435

442 

330 

105 

200 

292

77 

90 

185 

105 

198

282 

322 

315 

80 

185

Fluoride 

(F)

Nitrat

(NO,
VIRGIN RIVER BASIN Continued

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Conti

Chemical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

Dec. 16-29, 1965.

Jan. 1-3, 1966. . .

Sept. 1-30. ......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge 

(eta)

255 

2640 

701 

317 

200 

195

263 

197 

180 

277 

216 

409 

473

286 

201 

148 

67.4 

56.4

54.8 

227 

49.2 

81.0 

48 5 

67.9

-

178

~

Silica 

(SiOj)

Dec. 18, 1965.... 

Mar. 12, 1966....

Sept. 20. ........

255 

226 

58 

59 

59

L6 

L3 

17 

L8 

16

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

237 

69 

74 

191 

245 

260

227 

248 

242 

187 

206 

149 

107

161 

216 

211 

276 

328

310 

204 

315 

408 

314 

312

209

262

100

Potassium 

(K)

Bicarbonate 

(HCOS)

224 

275 

188 

288 

336 

294

292 

332 

320 

247 

305 

262 

222

278 

266 

272 

238 

214

210 

288 

244 

448 

284 

238

271

266

130

Analyses of addition

224 

199 

353 

339 

409

63 

56 

128 

129 

117

213 

181 

277 

263 

293

16 

16 

29 

28

31

331 

286 

285 

290 

374

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

al sa

0 

0 

0 

0 

0

Sulfate 

(S0 4 )

632 

369 

300 

561 

668 

712

584 

685 

715 

527 

599 

416 

351

505 

667 

685 

1120 

1240

1190 

680 

1200 

1950 

1260 

1260

679

895

325

Chloride 

(Cl)

300 

71 

88 

245 

320 

328

288 

322 

305 

228 

262 

200 

135

210 

275 

300 

385 

388

385 

255 

380 

525 

382 

380

267

336

128

mples (instantane

603 

551 

1200 

1130 

1270

280 

235 

390 

364 

403

Fluoride 

(P)

ous c

0.9 

.6 

1.1 

1.6 

1.2

Nitrate 

(NO,

isch

1.9 

1.2 

3.6 

.1 

1.6
COLORADO RIVER BASIN

C/3

-

1

£_

D

^

c.

<

-3

s

g

c

A

1

Q

0

Z

JO

x

Q

o o o o o

en co co en en

o O o o o

en* en PJ en en

o o o o o

m-mSSS

O O O O O

PI co P! en Pi

o o o o o

fM fM rvoi fM

o o o o o

cne? r? SS

o o o o o

oj r>j rg oj oj

O O O O O

rg eg rg IM CM

o o o o o

-" "N"

o o o o o

OJCM rg rg rg

o o o o o

saaas

o o o o o

CO CO CO CO CO

ooooo ooooo

co co en en en en co co in en

ooooo ooooo

co PI co co co en P! PI en en

ooooo ooooo

en en en Pv Pi cococococo

OOOOO OOOOO

PlenPiPIPI cnPtPiPtPI

ooooo ooooo

(M<vc>j^l<>i csif>)c>jI\Jfw

ooooo ooooo

tf?<j, o>^tf\ 471^^-tO

ooooo ooooo

o,rgrgrgrg CM CM ^ ^ ^

loooo ooooo

(>JC>Jf>JC\l (MNfWNN

ooooo ooooo

^rgcg^N N rg eg N N

ooolo ooooo

(MfMtN CM rHrHrHrH-l

OOOOO IOOOO

SS^SSS SSP(m

ooooo ooooo

mcoco.oco encocococo

rH r-t r-t r-t t-t r*

OOOOO

sssss

o o o t o

sss *

ooooo

sssss

ooooo

SSS?P<?<

ooooo

SmPJPI?!

ooooo

<* 00 00 1^0*

ooooo

O r-* r-* 1- rH

^_ ^, ,_, rg

ooooo

rgrg rC rg rg

ooooo

N-M^NN

ooooo

rg rg (M rg rg

ooooo

SS2SS

ooooo

cOcorMrgrg

ooooo

com en en co

ooooo

S en co co co

o o 1 o o

SS mS

ooooo

aaaaa

o o o o o

sssss

ooooo

^cg rg co m

ooooo

CMfM CM CM (M

OOOOO

sssss

OOOOO

Nrgojrgrg

ooooo

<M rg <M <M rg

ooooo

rg ^ ^ r- co CM rg I-H I-H I-H

ooooo

en to co co co

O O O O O 1 O

SSSSS R

o o o o o o o

co en co co co co co

o o o o o o o

O O O O O | O

PI PI Pi co PI en

o o o o o o o

 """" ""r

o o o o o 1 o

en eg rgr«^ o

o o o o o o o

N<xlNrH ""H *

0 0 0 1 1 1 0

sss J 5J

o o o o o o o

NNNrgcsjN, rg

2° °°°S S

rgrg rg <M ~« -t rg

o o o o o 1 o

 -

o o o o o o o

mm mmmm m

:::::: s»

SS SSSm <
VIRGIN RIVER BASIN Continued

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Co

Temperature (°F) of water water year October 1965 to 

November ..... 

December .....

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

September .....

1

67

45

 >0

76

2

63

50

77

3

66 

47

80

4

66 

47

83

5

56 

47

80

6

56 

46

78

7

65 

55

80

8

65 

55

80

9

65

68

10

65 

50

68

1 1

50

75

12

65

50

76

13

58 

49

75

14

58 

48

75

15

62 

48

75

Day

16

62

48

75

17

62

42

77

18

55

42

79

19

 

66

55

42

50

52

60

57

77

84

84

76

20] 

66

58

48

46

49

62

64

75

70

81

76

80
COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

 

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

[ Suspended sediment

Mean j~ 

dis- Mean

charge

(cfs)

60

68

57

61

64

60

57

54

57

63

66

69

63

63

71

74

166

200

147

123

111

117

119

111

119

119

121

121

117

111

113

2922

concentration 

(ppm)

1300

1000

550

490

490

440

410

420

480

530

600

590

Tons

per

day

210

180

85

81

85

71

63

61

74

90

110

110

510 87

610 100

920

1100

13000

180

220

5800

10000 5400

5000 2000

3700 1200

2900 i 870

2500 ! 790

2300 740

2200

2000

2000

2100

2100

2000

2000

1900

~

660

640

640

690

690

630

600

580

23737

JANUARY

418

293

240

229

222

212

234

215

226

221

212

212

196

196

196

199

191

183

181

178

178

171

178

186

189

196

178

194

196

196

221

6537

5400

4300

6100

3400

3000 | 1900

2400 1 1500

2200

2100

2100

2200

2200

2200

2300

2200

2100

2100

2100

2200

2300

2000

1900

2100

1900

2000

2100

2100

2000

2300

2600

2600

2600

2800

2600

~

1300

1200

1300

1300

1300

1300

1300

1300

1100

1100

1100

1200

1200

990

930

1000

910

920

1000

1000

1000

1200

1200

1400

1400

1500

1600

44950

NOVEMBER

Mean 

discharge

(cfs)

109

111

109

111

113

100

108

111

119

108

108

108

109

109

125

191

562

724

253

220

204

204

2120

986

986

1120

403

278

253

240

10402

Suspended sediment

Mean

concen- 

(ppm)

1800

1700

1600

1500

150U

1700

1900

2200

2500

2200

1800

1700

1800

2200

Tons

per 

day

530

510

470

450

460

460

550

DECEMBER

Suspended sediment Mean | T 

dig. Mean TonR

charge

(cfs)

232

222

220

222

217

212

207

660 1 197

800

640

197

905

520 jj 1510

500

530

650

3300 I 1100

5400

14000

18000

8500

5500

S 2900

S 49000

S 43000

5800

3300

4500 , 2500

3500 , 1900

31000 |S 310000

32000 k 100000

concentration 

(Ppm)

3200

3000

3200

3200

2500

2200

2200

2300

2700

16000

per

day

2000

1800

1900

1900

1500

1300

1200

1200

1400

S 54000

18000 S 78000

509 8700 12000

511 8100 | 11000

463 i 6500 ; 8100

332 3000

314 3000

278 2500

253

244

230

232

2500

2700

2800

2800

258 3200

293

258

24000 |S 95000 240

25000

6900

3500

3300

3100

-

S 92000 |! 232

S 7600

2600

2200

2000

728630

FEBRUARY

210

196

194

191

186

215

274

299

246

212

207

210

202

204

207

196

196

191

204

196

202

191

178

171

168

178

186

189

5699

2300 1300

2300 1200

2300 1200

2100 ' 1100

2700 I 1400

5200 ! 3000

7000

5700

3400

2500

2400

2300

2300

2300

2300

2300

2300

2500

2500

2400

2100

1800

1700

1800

2000

2000

2100

2100

--

5200

4600

2200

1400

1300

1300

1200

1300

1300

1200

1200

1300

1400

1300

1100

930

820

830

910

960

1000

1100

43050

3500

2800

2100

2000

240 1800

247 i 1600

247 2300

2640 41000

701 13000

13063

2700

2500

1900

1700

1800

1700

1800

2200

2800

2000

1400

1200

1200

1100

1500

S 410000

S 27000

641800

MARCH

183

181

194

1 8

1 7

1 7

1 6

1 6

2200

2300

2400

2200

1900

1900

1100

1100

1200

1000

750

750

2300 1000

2600 1200

191 2800 i 1400

215 3200 , 1800

223 i 3900 2300

23* ; 4700 3000

274 5500 4100

289 6100

296

322

299

263

240

234

240

237

246

212

207

173

176

6300

6200

5600

4600

4800

5000

5400

4500

3300

4100 2600

4000

3800

3600

2500

2500

2300

3400 2200

3100 ' 1800

3000 1700

2700 1300

2500 1200

221 2600 i 1700

318 4400 3800

426 7000

484

7372

7700

~

8000

10000

85300

S Computed by subdividing day.
QUALITY OF SURFACE WATERS, 1966

VIRGIN RIVER BASIN Continued

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

APRIL MAY JUNE

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

1 Suspended sediment : Suspended sediment

dis- Mean Tong

charge concen- Mr (

(cfs)

468

512

539

373

266

240

271

299

326

329

326

312

246

221

274

254

268

309

350

283

21.. 221

22.. 215

23..

24..

196

178

25.. 183

26.. 191

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

207

221

tration : 

(ppm) ay

7500 , 9500

7200

8200

5500

3900

3400

2900

10000

12000

5500

2800

2200

2100

3100 2500

3700

4000

4100

3600

Mean , - - -

dis- Mean T

charge concen-

(cfs)

(ppm) ! day

186 1800 900

173 1600 750

163

147

1600 700

1500

147 1300

136 1200

129 1300

600

520

Suspended sediment

Mean " T

discharge

(cfs)

Mean T

(ppm) day

51 590 81

50 400 54

54 i 380 55

54 450 i 66

55 600 j 89

440 : 56 620 ' 94

450 58

123 1400 460 56

3200 123 ' 1700 560 ! 56

3600

3600

3000 \

2900 1900

2800 1700

156 2000 840

171 2100

151

121

100

2700 2000 94

2700 j 1800

3100 ' 2200

3600 3000

4000 3800

3400

2100

1700

1700

2600

1200

990

900

1500 720

1400 690

1300

1600

670

890

2000 1200

196 2100 1100

204 2000 1100

8478 ! 88460

JULY

58 670 100

55

55

55

5.. 54

6.. 54

7.. 52

8.. 54

9.. 55

10..

470 70

320 48

320 48

300

320

370

380

81

1800

1300

970

730

56

510 80

500 76

520

510

58 680

56 940

79

77

110

140

420 56 870 130

1000 ' 270

840 210

730

78 700

70 700

67 640

69

67

65

160

150

130

120

620 120

600 110

600

62 640

63 580

63 510

100

58 640 100

56 610

56 690

55 650

55 550

56 480

92

100

96

82

72

58 460 72

58 490 77

58 480 75

110 ' 58 480 ] 75

99 : 58 470 ' 74

87 56 480 72

62 570 95 58

59 590 94

55 490 73

55 510 76

54 810 ' 120

50

3140

59

59

520 81

480

440

58 460

59 590

76

70

72

94

880 120

10584

AUGUST

100 13000

54 7500

2

1

44 1

47 0

52

55

380 56

55 410 61

11.. 56

12.. 55

13.. 52

14.. 52

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

54

52

52

52

410 62

400 59

420

440

420

380

330

330

1

3500

1100

1200 140

650 72

600 66

570 62

620

1 630

2 540

5 470

69

1691 2511

SEPTEMBER

196 66000

184 43000

36000

22000

78 7600 1600

54 1600 230

51 i 970 130

50 690 93

49 740 98

70 ' 50 830 110

61 51 700 96

57 51 520 72

47 430 54 54

49 430 57 56

59 49 500 66 56

62 52 520 73

61 49 540 71

53

46

46

51 350 48

52 350 49

52 330 46

52 350 49

52 380 53

50 360 49

50

50

52

52

340 , 46

300 40

50 530 72

50 450 61

49 470 62

51

51

81

63

46

44

45

45

300 42 45

340 48

54 330 48

104 84000 24000

227 33000 21000

1870 46547

47

49

50

51

1550

500 . 69

500 69

58

56

450 66

430 65

590

760

610

58 480

89

120

92

75

58 520 81

59 520 83

65

100

36000 8200 91

26000 4400

7700 960

1300 150

900

630

600

620

490

370

380

110

76

73

79

65

50

52

63

60

58

58

56

1400 240

18000 4900

7300 1800

1200 200

860 140

930

960

630

54 430

54 500

55 470

140

150

95

63

73

70

55 370 55

~

20066 ' 2038 69026

Total discharge for year (cfs-days). ..................... ........... . . . 64 762

Total load for year (tons) .......................... .......... 1 804 661
VIRGIN RIVER BASIN Continued 

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Con

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, plpet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

1700 

0700 

1600 

1700 

0800

1700 

1700 

1900 

1600

1900 

1800 

1800 

1800 

1730

Water 

temperature

(°F)

62

55 

54 

52 

52

50 

64 

66 

56

85 

84 

76 

80 

80

Sampling 

point

Discharge 

(cfs)

299 

885 

4830 

1520 

2290

194 

243 

645 

229

168 

149 

271 

72 

123

Sediment 

concentration 

(ppm)

23400 

23300 

63500 

26900 

61700

2690 

5520 

8720 

3170

11500 

64300 

60900 

6300 

16300

Sediment 

discharge 

(tons per day)

18900 

55700 

859000 

110000 

396000

1410 

3620 

15200 

1960

5220 

26800 

46200 

1220 

5080

Perce

0.002

28 

19 

13 

16 

27

7 

31 

16 

14

44 

39 

41 

50 

37

0.004

30 

25 

16 

20 

34

8 

40 

18 

19

59 

58 

48 

63 

52

0.008 
COLORADO RIVER MAIN STEM 

9-4210. LAKE MEAD AT HOOVER DAM, ARIZ.-NEV.

LOCATION. Lat 36°00'58", long 114°44'13", midway between intake towers, 225 feet upstream from gagin

Clark County, Nevada.

DRAINAGE AREA. 167,800 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: October 1940 to September 1966. 

REMARKS. Samples are collected by the U.S. Bureau of Reclamation and analyzed by the Metropolitan Wa

Chemical analyses, in parts per million water year October 196

Date 

of 

collection

Oct. 4.... ........

Oct. 4............

Oct. 4............

Nov. 1.. ..........

Nov. 1.... ........

Nov. 1.... ........

No . 30....... ....

No . 30. ..........

No . 30...........

Nov. 30....... ....

Depth

(feet)

Surface 

5 

25 

75 

125 

175 

225 

275 

325 

375

Surface 

5 

25 

75 

125 

175 

225 

275 

325 

375

Surface 

5 

25 

75 

125 

175 

225 

275 

325 

375 

408

Elevation 

(feet)

1125 

1120 

1100 

1050 

1000 

950 

900 

850 

800 

750

1126 

1121 

1101 

1051 

1001 

951 

901 

851 

801 

751

1128 

1123 

1103 

1053 

1003 

953 

903 

853 

803 

753 

720

Silica

(Si02)

8.6

8.6 

8.9 

9.1 

10

10 

8.1

7.9 

8.3 

8.1 

8.8 

9.6

8.8

8.4 

8.6 

9.1 

9.9

Calcium 

(Ca)

90

89 

93 

94 

97

99 

90

90 

91 

94 

97 

98

91

91 

94 

96 

98

Magnesium 

(Mg)

34

34 

31 

32 

32

32 

34

34 

32 

32 

32 

32

34

34 

32 

33 

32

Sodium

(Na)

118

118 

106 

110 

117

115 

117

117 

105 

108 

117 

117

111

108 

103 

106 

108

Potassium 

(K)

6

6 

6 

6 

6

6 

6

6 

6 

5 

6 

6

6

6 

6 

6 

6

Blcarbonate 

(HCO,)

122 

121 

120 

121 

106 

161 

156 

156 

153 

155

139 

139 

139 

139 

174 

176 

174 

171 

176 

170

140

140 

168 

167 

161

Carbonate 

(COJ

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

0 

0 

0 

0

Sulfate 

(S0«)

352

350 

313 

320 

335

333 

337

337 

303 

316 

327 

332

338

334 

309 

322 

325

Chloride

(Cl)

114 

114 

114 

114 

98 

100 

110 

112 

113 

113

112 

110 

112 

112 

96 

97 

106 

110 

110 

108

106 

106 

106 

106 

104 

94 

102 

110 

112 

112 

110

Fluoride

<F)

Nitrat

(NO

1.

1.

3.3 

3.4 

2.

2.2 

.

1.

2.

3.

3.5 

2.4

1.4

1.

3.

3.

2.2
an.

Mar.

Mar.

30...........

30......... ..

30.. .........

30...........

30...........

30...........

31, 1966..... 

31...........

31...........

28...........

28...........

28...........

28...........

28...........

31...........

31...........

31...........

31...........

25

75

225

275

375

409

5 

25

125

175

225

275

375

411

25

75

125

175

225

275

325

413

Surface

125

175

225

325

375

412

1130

1105

1055

1005

955

905

855

805

755

721

1127

1107

1057

1007

957

907

857

807

757

721

1133

1108

1058

1008

958

908

858

808

758

720

1132 

1107

1057

1007

957

907

857

757 

7Qn

9.5

8.5

7.5

8.8

11

~

8.6

8.6

9.0

10

11

8.6

8.6

8.4

9.1

10

11

8.8

8.8

9.1

8.6

8.8

90

91

__

96

97

98

89

91

93

95

96

92

92

92

93

97

98

90

92

93

93

96

34

34

32

34

34

34

34

34

34

34

32

32

32

32

32

32

34

34

34

34

33

110

__

110_

110

114

__

115~

120

120

122

124

__

127

110

110_

110

112

117

118

108

108

108

110

110

666666666666666666666

145

143

145

146

149

167

162

160

161

163

151

151

151

151

153

155

162

165

166

171

151

151

154

153

153

154

155

162

168

166

157

155

157

160

161

00000000000000000000000000000000000337

337_

322

334

__

336

343

347

348

353

__

355

327

326

327

328

333

332

330

330

330

330

329

102

102

102

102

100

101

109

111

111

108

102

100

100

100

100

100

104

110

110

112

102

102

102

102

102

102

104

112

113

114

100

101

101

101

102

104

104

106

108

108

2.1

2.1

__

3.1

2.5

1.4

1.5

1.5

1.0

1.4

1.5

2.1

2.1

2.0

2.1

2.1

2.1

2.0

2.0

1.2

2.0

2.0
COLORADO RIVER MAIN STEM Continued

9-4210. LAKE MEAD AT HOOVER DAM, ARIZ.-NEV. Con

alyses, in parts per million, water year October 1965 to 

Date 

of 

collection

July 5.......... . .

Depth 

(feet)

Surface 

5 

25 

75 

125 

175 

225 

275 

325 

375 

413

Surface 

25 

75 

125 

175 

225 

275 

325 

375 

414

Surface 

5 

25 

75 

125 

175 

225 

275 

325 

375 

414

Elevation 

(feet)

1132 

1127 

1107 

1057 

1007 

957 

907 

857 

807 

757 

719

1133 

1108 

1058 

1008 

958 

908 

858 

808 

758 

719

1133 

1128 

1108 

1058 

1008 

958 

908 

858 

808 

758 

719

Silica 

(Si02)

8.5

8.0

8.0 

8.2 

8.5

7.8 

8.5

8.5 

8.7 

8.7

8.5

10

10 

9.7

11

Calcium 

(Ca)

90

90

93 

94 

94

88 

91

91 

93 

94

83

90

93 

93

93

Magnesium 

(Mg)

33

32

33 

33

34

31 

31

31 

32 

32

30

30

30 

31

32

Sodium

(Na)

106

107

108 

109 

109

103 

103

103 

106 

107

105

102

103 

107

112

Potassium 

(K)

5

5

5 

5 

5

5 

5

5 

5 

5

5

5

5 

5

5

Bicarbonate 

(SCO,)

153

150

151 

154 

154

144 

144 

153 

153 

153 

153 

154 

157 

155 

157

131

151

153 

154

155

Carbonate 

(CO,)

0

0

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

0

0 

0

0

Sulfate 

(SO,)

323

323

327 

331 

331

317 

315

314 

325 

320

312

302

312 

315

321

Chloride 

(Cl)

96 

96 

97 

98 

99 

103 

103 

104 

104 

105 

106

93 

95 

93 

94 

94 

97 

100 

100 

102 

104

96 

96 

96 

96 

96 

96 

98 

100 

102 

104 

104

Fluoride 

(F)

Nitrate 

(NO,

2.0

2.0

1.5 

2.2 

1.9

1.6 

1.9

2.4 

2.2 

2.1

1.0 

2.2

1.5

1.7

2.0
July 29...........

July 29... ........

July 29...........

July 29...........

Aug. 31...........

Aug. 31...........

Aug. 31...........

125

225

325

Surface

25

125

225

275

325

375

1125

803

9 7

_

9.2

91

92

 il

32

32

 31

QO

31

_

139

157

157

309

305

311

324

322

312

313

2 5"

2 3

9-4215. COLORADO RIVER BELOW HOOVER DAM, ARIZ.

(Irrigation network station)

LOCATION. Lat 36°00'55", long 114"44'16", at Hoover Dam, on state line between Mohave County, Ariz.

DRAINAGE AREA. 167,800 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: October 1939 to September 1966.

Water temperatures: October 1941 to September 1965 (discontinued). 

REMARKS. Records of specific conductance of individual samples available in district office at Tucs

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 5, 15, 25,

1965.. .........

Nov. 5, 15, 24...

Dec. 6, 15, 23. ..

Jan. 5, 14, 25,

1966.. .........

Feb. 4, 16, 25. . .

Mar. 4, 15, 25.. .

Apr. 5, 15, 26. . .

May 5, 16, 25. ...

June 6, 15, 24. . .

July 5, 15, 25. . .

Aug. 5, 15, 25...

Sept. 6, 15, 26..

Mean 

discharge 

(eta)

Silica 

(S10,)

8.6

8.4

8.3

7. 9

8.1

8.3

8.5

8.4

8.4

8.4

8.3

8.4

Iron 

(Fe)

Calcium 

(Ca)

98

99

96

94

94

92

94

93

92

92

91

90

Magnesium 

(Mg)

31

31

32

31

32

32

32

32

31

29

29

29

Sodium 

(Na)

118

112

121

115

112

121

120

117

115

117

110

105

Potassium 

(K)

__

_

~

5.1

--

4.7

Bicarbonate 

(HCOS)

168

168

174

150

154

154

156

158

156

158

160

160

Carbonate 

(CO,)

0

0

0

0

0

0

0

0

0

0

0

0

Sulfate 

(SO.)

326

321

331

330

326

335

333

326

322

311

304

296

Chloride 

(Cl)

106

104

104

104

103

106

107

104

102

106

97

92

Fluorlde

(F)

_

__

--

0.3

-.

.4

N

tra

(N

2

3

2
COLORADO RIVER MAIN STEM Continued

9-4280. COLORADO RIVER BELOW PARKER DAM, ARIZ.-CA

LOCATION. Lat 34°15'30", long 114°09'00", at gaging station 3.9 miles downstream from Parker Dam, 10

DRAINAGE AREA. 178,000 square miles, approximately.

RECORDS AVAI LABLE.--Chemical analyses: October 1963 to September 1966.

Water temperatures: February 1954 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F on several days during August.

EXTREMES, 1954-66. Water temperatures: Maximum, 83°F Aug. 12, 13, 18, 1955; minimum (1954-65), 47°F 

REMARKS.--Temperature recorder inoperative Jan. 12-28.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 14, 1965. . . .

Dec. 1... ........

Sept. 1. .........

Mean 

discharge 

(cfa)

4920 

4510 

43000 

1690 

4350 

9020

13700 

4700 

14820 

17540 

18690 

4440

Silica 

(SIO,)

9. 9 

13 

13 

24 

13 

15

8.5 

8.0 

8.1 

8.3 

11 

9.0

Iron 

(Fe)

Calcium 

(Ca)

99 

101 

78 

66 

94 

98

97 

97 

94 

95 

92 

92

Magnesium 

(Mg)

31 

31 

30 

20 

30 

32

33 

32 

33 

31 

33 

32

Sodium 

(Na)

123 

126 

113 

83 

120 

123

123 

129 

116 

126 

118 

117

Potassium 

(K)

5.7

5.5 

5.6

Bicarbonate 

(HCO,)

152 

154 

110 

152 

166 

167

164 

159 

157 

154 

148 

147

Carbonate 

(CO,)

0 

0 

10 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

350 

348 

297 

194 

313 

330

336 

346 

343 

338 

329 

326

Chloride 

(CD

118 

116 

104 

72 

109 

115

112 

114 

110 

112 

110 

107

Fluorlde

(F)

0.4 

.4

Nitrate 

(NO,

2.3 

1.2 

.1 

1.7 

2.0 

2.0

1.6 

2.3 

.8 

1.5 

1.8 

1.2
£ 3

3 5

COLORADO RIVER BASIN

s e 3 3

E 6
COLORADO RIVER MAIN STEM Continued 

9-4291. COLORADO RIVER BELOW PALO VERDE DAM, ARI

LOCATION. Lat 33°43'10", long 114°29'50", temperature recorder at gaging station 1.2 

structure, 9.5 miles northeast of Blytbe, Calif., and 11.0 miles upstream from Ehre

DRAINAGE AREA. 182,200 square miles, approximately.

RECORDS AVAILABLE. Water temperatures: April 1956 to August 1966 (discontinued).

EXTREMES, 1965-66. Water temperatures: Maximum, 82°F Aug. 4-6.

EXTREMES, 1956-66. Water temperatures: Maximum, 88°F Aug. 7, 11, 1958; minimum (195

Jan. 11-14, 17, 1964.

REMARKS. Temperature recorder inoperative Jan. 1-31, Apr. 27 to May 6. Recorder rem

Temperature (°F) of water, water year October 1965 to 

69 69 70 70 71 71 70 71 73 74

69 69 69 70 70 70 70 71 71 73

73 73 73 72 71 69 70 70 

73'72 72 71 69 69 69 70 

68 68 68 68 68 68 68 68 68 67 67 66 66 66 66 65 65 66 66 64 

68 68 ' 68 68 68 68 68 68 67 67 66 66 66|66 65 65 65 65 65 63 ' 

581 58 | 58 58 58 58 59 59 59 59 ' 59 59 59''58 58 57 58'58 57 I 57 | 

58 58' 58 58 58 58 58 59 59 59 58 58 58 I 58 57 57 57 57 57 57 

51

55

54

65

75

78

76

51

54

52

65

75

78

75

51

55

54

66

75

78

76

51

55

55

66

75

78

76

51

56

55

66

75

79

76

51

56

56

65

7?

72

75

79

78

8 1

51

56

56

65

7?

71 

75

79

76

50

57

56

65

7?

71

75

79

78

50

57

56

66

71

69

75

79

78

81

49

57

57

66

69

69 

75

79

78

49

57

57

66

70

69 

75

79

78

49

57

57

66

71

70 

77

79

77

49

58

57

67

71

71 

78

79

77

51

58

58

67

71

71 

78

79

77

51

58

58

67

71

71 

78

80

78

51

58

57

67

71

71 

78

80

79

53

58

57

68

73

72 

78

80

79

53 53

58 58

58 58

66 65

78 77

80 80

78 78
9-4293. COLORADO RIVER BELOW CIBOLA VALLEY, 

LOCATION. Lat 33°13'15", long 114°40'20", temperature recorder at gaging station 6

miles upstream from Imperial Dam, 39.7 miles downstream from Ehrenberg, Ariz., 52

dam near Blythe, Calif, and at mile 620 on Colorado River Profile Survey map.

DRAINAGE AREA. 183,000 square miles, approximately.

RECORDS AVAILABLE. Water temperatures: March 1956 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 85°F Aug. 2-5.

EXTREMES, 1956-66. Water temperatures: Maximum, 88°F Aug. 1, 10, 11, 1959; minimum 

REMARKS. Temperature recorder inoperative Oct. 15 to Feb. 24, Mar. 12-22.

Temperature (°F) of water, water year October 1965 to 

Month 

1

Ounlur

Minimum .... 6 

November

December

JanuaryMaximum .... 

Minimum .... 

February

March 

Maximum .... 5 

Minimum .... 5 

April 

Maximum .... 7 

Minimum .... 6 

Ma\ 

Maximum .... 7 

Minimum .... 7 

June 

Maximum . . . . , 7 

Minimum .... 7 

Juh 

Maximum .... 8 

Minimum .... 8

Vaximum .... 8 

Minimum .... 8 

September 

Maximum .... 7

Minimum . . . . 7

2 3456 7891011

1 72 74 74 74 73 74 75 75 76 ' 76 

8 69 71 72 72 71 72 72 73 73 73

12

76 

73

13

75 

74

Da)

14 15 16 17 18 19 20 

7' 56 54 53 53 55 57 58 59 60 60 

5 53 52 50 49 52 55 57 53 58 59

0 69 69 69 67 67 68 68 68 68 , 68 

9 68 68 67 65 66 67 66 67 66 66

3 74 75 75 75 76 76 76 74 72 70 

2| 72 73 73 74 75 75 74 72 70 69

6 76 77 78 78 78 77 75 76 78 79 

4, 74 75 75 76 76 75 74 75 75 77

2 81 80 80 81 81 81 81 81 82 83 

0 79 ' 78 78 78 79 79 78 80 80 81

1 82 83 83 33 83 82 82 82 82 82

8 79 80 81 81 81 82 82 82 82 81 

6 76 78 79 79 80 80 80 81 81 | 80

68 

66

72 

69

79 

77

83 

81

82

80 

77

68 

66

75

77

81 

80

82

78 

77

70 70 71 i 71 70 66 65 

67 69 70 i 70 66 64 64

75 75 75 1 76 77 78 78

81 81 81 80 81 81 78 

79 80 80 79 78 77 i 76

81 82 82 83 84 84 82 

79 79 80 81 82 81 8C

82 83 83 82 82 82 82

78 80 81 83 83 80 7 C

77 77 79 i 80 80 78 7

I 
GILA RIVER BASIN

9-4305. GILA RIVER NEAR GILA, N. MEX.

t gaging station at Hooker damsite, 1 mile upstream from 

September 1966.

12; miniir daily, 130

LOCATION. Lat 33"03'45", long 108°32'20",

DRAINAGE AREA. 1,864 square miles.

RECORDS AVAILABLE. Chemical analyses: June 1963 t

Water temperatures: July 1959 to September 1966.

Sediment records: July 1959 to September 1966. 

EXTREMES, 1965-66. Specific conductance: Maximum daily, 338 micromhos Oct

Water temperatures: Maximum, 85°F July 22, 27; minimum, 33°F Feb. 28.

Sediment concentrations: Maximum daily, 7,700 ppm July 13; minimum daily, 2 ppm June 24.

Sediment loads; Maximum daily, 25,000 tons Dec. 23; minimum daily, less than 0.5 ton on 

EXTREMES, 1959-66. Specific conductance (1964-66): Maximum daily, 390 micromhos Nov. 30, Dec. 2, 19

Water temperatures: Maximum, 87°F July 24, 1961, July 12, 1963, Aug. 5, 1964; minimum, freezing po

Sediment concentrations: Maximum daily, 26,000 ppm Aug. 2, 1962; minimum daily, 1 ppm Sept. 3, 195

Sediment loads: Maximum daily, 130,000 tons Aug. 2, 1962; minimum daily, less than 0.50 ton on man

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

Chemical analyses, in parts per million, water year October 196

everal da

Date 

of 

collection

Oct. 12, 1965....

Dec. 25. .........

Mar. 14. .........

Sept . 7 ..........

Discharge 

(cfs)

52.1 

82.1 

1000 

2030 

A190 

1590

307 

247 

108 

80.3 

294 

79.0 

76.2

Silica

(S10,)

29 

27 

29 

26

30 

32 

36 

39 

31

40

Iron 

(Fe)

0.06 

.15

.00

Calcium 

(Ca)

19 

18 

29 

16

16 

15 

27 

26 

20

25

Magnesium

(MB)

5.0 

3.6 

1.8 

3.4

3.6 

3.3 

4.7 

5.6 

4.9

5.2

Sodium 

(Na)

13 

9.0 

21 

9.4

17 

16 

26 

33 

14

28

Potassium 

(K)

1.4 

2.4

2.0

Blcarbonate 

(HCOS)

136 

118 

68 

52 

91 

52

63 

64 

108 

114 

82

115

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

Sulfate 

(S04 )

32 

30 

35 

25

26 

21 

30 

35 

22

27

Chloride 

(Cl)

18 

16 

4.9 

3.3 

8.3 

3.2

6.3 

6.2 

13 

16 

5.2

13

Fluorlde 

(F)

1.0 

.6 

1.5 

.6

1.3 

1.4 

2.1 

2.4 

1.0

2.3

Ni

tra

(NO

A Daily mean discharge
Specific conductance (micromhos at 25°C), water year October 1965 

Day Novembei December February March April May 
GILA RIVER BASIN Continued

9-4305. GILA RIVER NEAR GILA, N. MEX. Continu

Temperature (°F) of water, water year October 1965 to Se

November .....

December .....

January. ....... 

February. ......

June ..........

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

September .....

1

58

52

43 

56

57

66

73

80

ao

75

2

60

56

48

50

57

7?

77

72

78

77

3

61

56

38 

49 

45

58

65

65

72

78

78

4

58

55

45 

51 

46

55

65

66

75

78

66

5

60

54

42

44 

44

52

69

75

ao

70

70

6

61

52

45 

50

50

51

78

61

84

HO

68

7

63

59

45 

45 

54

51

74

65

71

81

70

8

_

58

46 

44 

52

54

68

77

80

75

77

9

60

42

43

56

75

67

84

82

80

10

64

52

40 

46

54

69

75

80

84

11

65

53

44 

45

5R

68

67

82

81

12

67

56

48 

44 

43

58

66

72

ao

76

70

13

56

54

40 

44 

43

59

69

73

78

80

67

14

55

52

45 

43 

48

59

68

71

80

76

73

15

58

54

44

44 

47

60

68

72

78

80

70

Day

16

58

54

42 

45 

46

60

70

77

84

ao

70

17

5S

41 

47 

46

61

71

84

70

~

18

62

57

48

50 

49

61

70

76

_

80

74

19

54

56

43 

52 

50

60

75

72

__

74

72

20

55

53

42

55

50

59

76

__

75

74

21

64

52

46 

45 

52

60

68

79

82

80

72

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Dec. 24. ..........

July 26. ..........

Time 

(24 hour)

1500 

1530 

1130 

1430

0800 

1800 

1830 

1800 

1430

Water 

temperature 

(°F)

43 

41 

38 

43

82 

68 

76 

74 

75

Sampling 

point

Discharge

(cfs)

3110 

1530 

765 

1500

131 

68 

131 

120 

175

Sediment 

concentration 

(PPm)

2120 

1680 

1050 

1580

1840 

6010 

5600 

522 

2330

Sediment 

discharge 

(tons per day)

17800 

6940 

2170 

6400

651 

1100 

1980 

169 

1100

Perce

0.002

9 

12

24

83 

78 

42 

63 

66

0.004

13 

15

33

96 

89 

55

77 

77

0.008 
COLORADO RIVER BASIN

GILA RIVER BASIN Continued 

9-4305. GILA RIVER NEAR GILA, N. MEX.--Continued

Suspended sediment, water year October 1965 to September 1966

(Where no concentrations are reported, loads are estimated)

OCTOBER NOVEMBER || DECEMBER

g

Mean

Day dis- IV

uspended sediment , ! Suspended sediment

Mean - Mean

ean Tons discharge concen- charge 

(cfs) tration (cfs) 

(ppm) aay

1.. 64

2.. 64

3.. 61

4.. 61

5.. 59

6.. 57 C

7.. 55 C

8.. 54

9.. 52

10.. 52 C

11.. 52 C

12.. 54 C

13.. , 54 C

14.. 54 Ic

15.. 55 C

16.. 63 C

17.. 70 C

18.. 66 C

19.. 64 C

20.. 63 .C

21.. 59 C

22.. 59 C

23.. 57 C

24.. 57 C

25.. 54 C

26.. 54 C

27.. 54 C

28.. 54 C

29.. 72 C

30.. ' 75

31.. 61

Total 1830

±en T° ; dUt tration t£ - Per 1 ° ( {*)ge 

(ppm) day . (cfS>

26 4 57 C 13

18 3 55

24 4 55

19 3

19 3

C 13

C 3

55 C 3

79

75

75

:, 77

55 |C 3 ji 75

14 2 57 C 4

14 2 59 C 4

11 2 57 C 4

11 2 55 'C 3

72

72

70

77

8 1 55 C 3 1410

8 1 55

7 1

7 1

7 1

55

C 3 1960

C 4 900

55 C 4 538

55 1C 4 438

14 2 61

14 2 59

14 3 55

6 1

6 1

6 1

C 6

C 6

C 6

386

342

358

55 C 6 350

57 C 3 298

55 |C 3 259

66 10 55 'C 3 259

66 10 ; 55 C 3 1390

66 10 55 C 3 4020

5 1 55

5 1

5 1

8 1

55

C 3 1720

6 j 1060

80 37 788

90 12 645

8 1 90

8 2 85

12 2 82

42 7 1

13 554

5 498

4 855

 1 3000

86 1824 36 22700

JANUARY FEBRUARY

1.. 1880

2.. 1 1090

3.. 716

4.. 538

5.. 450

6.. 386

7.. 338

8.. 301

9.. 286

10.. 262

11.. 247

12.. 235

13.. 223

14.. 214

15.. 199

16.. 184

17.. 178

18.. 202

19.. 217

20.. 193

21.. 205

22.. 175

23.. , 151

24.. 139

25.. | 136

26.. 130

27.. 125

28.. 133

29.. 136

30.. 136

31.. 152

Total 9957 i

9100 151 C 6 2 195

4100 151 C 6 2 208

1100 2100 : 149 C 6 2 220

610 890 149 C 6 2 208

250 300 149

160 170 151

90 82 160

90 73

70 B 54

255

C 6 2 198

C 6 i 2 205

8 3 222

34 23 299

270 37 27 520

30 B 21 250

20 B 13 230

10 6 218

38 23 212

14 8

33 22 728

26

19

C 8

205 C 8

16 830

11 1020

4 1300

4 1490

16 8 198 C 8 4 1870

10 5 190 1C 8 4 1990

12 6 188 'C 8

12 6 188 C 8

10 6 190 C 9

6 3

8 4

5 2

200 C 9

4 2210

4 2120

5 1600

5 1420

218 7 4 1330

233

11 4 235

5 2 228

14 5

5 2

51 17

51 18

20 12 1140

15 , 10 925

13 i 8 775

218 C 10 6 700

218 C 10 6 628

212

198

83

8 3 1

C 10

9

!_L 3 1

17037

6 612

5 588

564

 , 556

- 548

5614 205 27219

Suspen

Mean

(ppm)

C

C

C

C

C

C

C

C

_

530

280

190

140

95

110

80

60

_

2200

1500

1100

650

270

"

MARCH

12

13

18

9

11

9

15

70

300

580

450

730

ded sediment

- -

Tons

per 

day

4800

5000

1300

410

220

140

88

110

76

48

30

30

11000

S 25000

7000

B 3100

B 1400

470

220

130

3100

22000

85681

1

56

420

1100

1000

2000

1300 IB 4600

1700

2000

1600

1900

1500

990

850

710

490

710

430

510

220

170

170

140

92

98

6800

10000

8600

11000

8600

4300

3200

2500

1500

1800

900

960

370

280

270

210

140

140

70795

S Computed by subdividing day. 

T Less than 0.50 ton. 

B Computed from estimated-concentratio 

C Composite period.
QUALITY OF SURFACE WATERS, 1966

GILA RIVER BASIN Continued 

9-4305. GILA RIVER NEAR GILA, N. MEX. Continued

Suspended sediment, water year October 1965 to September 1966 Continued

- --- -- - - T " 

APRIL MAY j

Day

# ^

..

..

..

 

..

..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean

discharge

(cfs)

556

588

628

652

616

556

5?0

500

460

420

380

380

360

360

340

320

Suspended sediment Suspended sediment

-' Mean [ ~ ~

Mean _ j;,. Mean _

concen- rhni-er« concentration ">" ( cfaf tration "? er

(ppm) ay j (ppm) j day

110 160 2*5 21 14

340 540 2*2

160 27a 230

150 260 ' 230

160 270

100 150

84 120

72 97

230

230

218

232

52 64 245

35 40 252

43 44

62 64

55 53

26 25

20 18

35 30

255

242

218

192

180

171

320 29 25 167

305 25 20 166

305 23 19 166

299 25 20 164

32

86

43

33

31

25

44

42

38

64

29

21

53

27

20

19

15

28

28

26

44

19

17 10

25 13

19 9

17 8

25 11

18 ; 8

20 | 9

38 17

281 30 23 160 20 I 9

275 24 18 160

255 23 16 151

235

222

11 7 143

9 5 142

210 14 8 134

205 28 15 127

218 35 21 120

230 13 8

242 28 18

11238 2*28

114

108

102

5736

23 I 10

16 6

13 5

15 ! 6

14 i 5

20 i 7

13 4

11 3

11 ! 3

11 J_ 3

460

1 JULY AUGUST

1 . .

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

96

78

69

61

57

54

51

50

50

52

52

150 39 107 ' 110 32

62 13 90 74 18

27 5 90 260

17 3 131 680

S 87

240

20 3 177 650 3lO

20 3 193 400 210

17 2 156 120 50

16 2 142 67 26

13 2 122 59 19

15 2 115 50 16

11 2 113 53 16

50 14 2 100 37 10

76 7700 S 1700

62

65

1400 230

91 28 7

84 29 6

210 37 80 i 25 5

63 120 20

54 74 11

54 140 20

56 130 B 20

54 60 IB 9

94 1500 S 440

69 220 41

87 37 9

77 38

100 2*0

143 970

122 310

113 310

108 210

60 74 12 1*0 *20

58

66

86

82

85

127

134

58 9 I 186 890

62 11 260

1200 S 360 200

720

210

400 88 | 150 100

130 30 ' 125 72

3600 'S 1300 i 130 1800

1200 430 \ 110 220

127 j 200 ' 68 100 68

2192 1 4914 3942

8

S 150

S 410

100

95

61

160

S 460

500

110

40

24

30

65

18

3892

Mean

! discharge

i (cfs)

L_ .

100

95

90

85

80

75

74

70

68

66

64

62

59

58

58

58

56

56

54

56

59

60

57

51

49

50

62

107

117

111

2107

JUNE

Suspended sediment ' ~ I ~~ 

Mean

concen-

(ppm)

21

9

19

Tons

per

6

2

5

7 2

15 3

5

7

7

5

7

4

9

11

27

1

1

1

1

1

1

2

2

4 1

5 1

4 B 1

8! 1

6

5

1

1

7 1

6 1

16 2

2 J T

5 1

5 1

60 10

790 S 340

1200 380

290 87

861

SEPTEMBER

90

85

75

70

85

79

77

78

72

68

64

63

67

77

122

145

162

140

131

127

152

127

110

15*

122

104

118

111

110

110

45

33

40

36

52

51

30

11

8

3

7

12

11

6

30 6

20 4

20 B 4

20 B 3

15 2

15 3

21 4

71 S 26

66 26

66 'B 29

53 20

95 34

99 34

470 190

390 130

88 26

1600 S 710

500 160

45

41

28

23

19

3095

Total load for year ( tons )............ . . . . ................. ............

13

13

B 8

7

6

1521

........ 187916

Computed by subdividing day. 

T Less than 0.50 ton. 

B Computed from estimated-concentration graph
GILA RIVER BASIN Continued

9-4440. SAN FRANCISCO RIVER NEAR GLENWOOD, N. 

LOCATION. Lat 33°15'05", long 108°52'40", at gaging station 0.2 mile upstream from hot springs, 5 mi

from Whitewater Creek. 

DRAINAGE AREA. 1,653 square miles. 

RECORDS AVAILABLE. Chemical analyses: April 1963 to September 1966.

Sediment records: April 1963 to September 1966. 

REMARKS. Where no potassium (K) is reported, sodium (Na) and potassium (K) are calculated and report

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 19, 1965. . . .

July 6. ..........

Sept. 6.. ........

Discharge 

(cfs)

15.5 

12.8 

753 

1270 

95.3 

87.0 

1790

343 

A59.0 

A20.0 

A20.0 

26.2 

A46.0

Silica 

(810,)

28

30 

27

30 

29 

41 

35 

36 

39

Iron 

(Fe)

-

0.00 

.48

Calcium 

(Ca)

44

38 

34

28 

22 

37 

36 

42 

36

Magnesium 

(Mg)

5.4

8.0 

5.4

5.4 

5.6 

8.9 

9.2 

9.0 

8.8

Sodium 

(Na)

11

23 

9.9

13 

13 

23 

20 

23 

22

Potassium 

(K)

-

2.3 

2.5

Blcarbonate 

(HCO,)

214 

223 

117 

141 

178 

178 

124

111 

104 

188 

184 

206 

185

Carbonate

(ccg

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO.)

33

19 

22

22 

14 

12 

12 

12 

12

Chloride 

(Cl)

5.3 

3 .5 

5 .6 

7.8

3 .5 

3 .8 

7 .4 

6 .3 

6 .4 

6.0

Fluorlde 

(F)

0.3

.4 

.3

.3 

.3 

.4 

.4 

.4 

.4

Nitrate 

(NO,

0.3

.1 

.3

.1 

.1 

.7 

.1 

.1 

.5

A Daily mean discharge.
GILA RIVER BASIN Continued 

9-4440. SAN FRANCISCO RIVER NEAR GLENWOOD, N. MEX. C

determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Sept. 10, 1965....

Feb. 27 ...........

Mar. 1. ...........

Mar. 9. ...........

May 30. ...........

July 5. ...........

July 6... .........

Time 

(24 hour)

1130 

0945 

1500 

1000 

1600 

1330

1000 

1500 

1245 

1430 

1115 

1200

1100 

1030 

1700 

1400 

1330 

1400

1100 

1600 

1400 

1200 

1500 

1030

1330 

1500 

1830 

1145 

1500

1300 

1530 

1500 

1000 

1500 

1500

Water 

temperature 

(°F)

70 

61 

75 

57 

58 

69

48 

45 

48 

48 

36 

42

48 

48 

55 

56 

48 

52

52 

54 

62 

63 

70 

65

76 

80 

80 

80 

79

77 

79 

78 

67

74

Sampling 

point

Discharge

(cfs)

135 

7.1 

6.3 

16 

8.0 

13

32 

202 

753 

1270 

95 

64

70 

87 

51 

156 

988 

1790

418 

416 

187 

118 

110 

59

46 

38 

53 

20 

16

30 

52 

26 

35 

56 

87

Sediment 

concentration 

(ppm)

2210 

15 

207 

22 

14 

456

30 

1760 

3090 

5100 

816 

32

92 

164 

145 

4360 

8720 

7840

625 

312 

177 

94 

20 

143

190 

6 

62 

48 

24

407 

9430 

846 

101 

759 

19300

Sediment 

discharge 

(tons per day)

806 

0.3 

3.5 

1.0 

0.3 

16

2.6 

960 

6280 

17500 

210 

5.5

17 

38 

20 

1840 

23300 

37900

705 

350 

89 

30 

5.9 

23

24 

0.6 

8.9 

2.6 

1.0

33 

1320 

59 

9.5 

110 

4500

Per

0.002

17 

14

29 

21

62

0.004

22 

16

40 

27

79

0.0
GILA RIVER BASIN Continued 

9-4445. SAN FRANCISCO RIVER AT CLIFTON, AR

LOCATION. Lat 33°02'57", long 109°17'43", at gaging station on downstream side of Railroad Boulevar

from mouth.

DRAINAGE AREA. 2,766 square miles. 

RECORDS AVAILABLE. Sediment records: October 1963 to September 1966.

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube: W, in distill

Date of collection

Time 

(24 hour)

1205 

1325 

1600 

1315 

1400 

2305

1605 

1645 

1300 

1410 

0940 

1500 

1400

1420 

1310 

1250 

1145 

1350 

1400

Water 

temperature 

(°F)

62 

55 

57 

48 

44 

42

42 

44 

44 

47 

42 

54 

56

60 

70 

78 

86

Sampling 

point

Discharge 

(cfs)

31.8 

64.1 

2250 

408 

453 

19800

10900 

1010 

340 

205 

246 

250 

2830

777 

460 

232 

84.1 

71.6 

74.4 

135

Sediment 

concentration 

(ppm)

17 

30 

12700 

1450 

740 

19600

28700 

2490 

750 

170 

120 

110 

7100

1160 

450 

110 

120 

14 

760 

83

Sediment 

discharge 

(tons per day)

1.5 

5.2 

77200 

1600 

900 

1050000

845000 

6790 

690 

94 

80 

74 

54200

2430 

560 

69 

27 

2.7 

150 

30

Perc

0.002

16

14

0.004

21

19

0.00
GILA RIVER BASIN Continued 

9-4485. GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOL

LOCATION. Lat 32°52'10", long 109°30'40", at gaging station 0.6 mile downstream 

northeast of Solomon, Graham County, and 17 miles downstream from San Francisc

DRAINAGE AREA. 7,896 square miles.

RECORDS AVAILABLE. Specific conductance: January 1965 to September 1966. 

Water temperatures: January 1965 to September 1966. 

Sediment records: February 1965 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 42,000 ppm Aug. 19; 

during June.

Sediment loads; Maximum daily, 1,900,000 tons Dec. 23; minimum daily, 2 tons o

EXTREMES, February 1965 to September 1966. Sediment concentrations: Maximum dai

minimum daily, 7 ppm July 8, 1965.

Specific conductance (micromhos at 25°C), water year October 19

Day

4.. ...

7 .....

9... . .

19.....

20.....

2.1 .....

29.....

10.... . 11 .....

Average

October

1215

1350

1180

1250 

1230

1250

November

1300

1200

I 100

_

1000

700 

760

December

800

tt60

960

440 

430

490 

420

532

January

230

390

420

680 

690

690

7»0

February

770

770

781)

590

670

_.

March

600

&00

b30

590

260

350 

350 

350

397

April

360

320

340

500 

500

SOU

620

May

620

620

710 

700

890

910 

99')
Temperature (°F) of water, water year October 1965 to Se

October .......

November ..... 

December .....

January. .......

March ......... 

April..........

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

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

August. .......

September .....

1

58

46

72

2

53

48

73

3

54

42

4

52

40

5

72

6

74

7

50

69

8

60

52

70

9

56

-

72

10

56

52

1 1

62

47

12

48

54

72

13

--

70

14

56

68

15

54

52

72

Day

16

51

52

69

17

53

50

18

52

19

52

74

20

72

21

--

53

71

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Mar. 23, 1966. ....

July 1 ............

Aug. 25... ........

Time 

(24 hour)

HOC 

0500 

1430 

1715 

1715

1515 

1615 

1015 

0800 

0715

0630 

0635 

1130 

0600 

0645

0825 

1200 

0730 

0830

Water 

temperature 

(°F)

66 

49 

49 

47 

47

43 

42 

44 

49 

72

73 

76 

75 

71 

72

69 

72 

69 

71

Sampling 

point

Discharge

(cfs)

60 

4440 

7780 

2750 

2750

37000 

15800 

2100 

3320 

1170

143 

172 

2100 

675 

247

684 

3360 

1670 

1160

Sediment 

concentration 

(ppm)

82 

12600 

18000 

11500 

11500

27400 

27400 

2790 

4490 

39800

15900 

2840 

39300 

15100 

8050

49900 

38600 

20100 

20100

Sediment 

discharge 

(tons per day)

13.3 

151000 

378100 

850300 

850300

2737000 

1169000 

158200 

40250 

125700

6140 

1320 

222800 

27520 

5370

92160 

521000 

90630 

63000

Perc

0.002

20 

23 

2 

15

14 

14 

13 

11 

32

56 

51 

30 

45 

42

46 

23 

35 

23

0.004

28 

30 

9 

20

19 

18 

17 

14 

45

76 

67 

40 

54 

60

59 

32 

45 

28

0.008

23 

22
QUALITY OF SURFACE WATERS, 1966

GILA RIVER BASIN--Continued 

9-4485. GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, ARIZ.--Continued

Suspended sediment, water year October 1965 to September 1966

(Where no concentrations are reported, loads are estimated)

OCTOBER NOVEMBER

Mean

Day discharge

1 . .

?..

3. .

4..

6. 

b, .

7. .

B. .

o. .

10..

11..

17. 

13..

14..

15. .

16..

17. .

18..

19..

Suspended sediment -

Mean

concen- (cfs) yation

(ppm)

67

67

60

62

6?

6°

60

5°

51

45

45

49

4?

41

42

45

M

55

6?

20.. 6 Q

21.. 69

?2.. ft?

?3.. 60

?4.. 60

?5.. 67

26. .

27..

1<3

57

?R.. 5 Q

2RO

160

IftO

130

1?0

c *4

r 44

r 44

C 44

r 44

r 44

r 44

r 44

r 44

r 44

r 44

C 44

r 44

r 44

r 44

r 44

r 44

c 44

r 44

r 44

r 44

79.. 60 C 44

10.. 65

51 "t . <°_ ^___ ____

C 44

r 44

Total 17R1

1..

1 Mean

Tons

day

discharge

(cfs)

51 ' 51

43

32

27

27

24

1°

7

6

5

5

6

6

5

5

S

6

7

7

8

8

7

7

7

R

7

7

7

7

R

7

380

55

65

63

67

6°

67

60

74

74

74

74

75

77

85

87

94

96

89

83

83

92

91

9 s

116

154

224

241

Suspended sediment - -- 

Mean

(ppm)

C 44

C 44

C 44

C 44

C 44

- - 

Tons

day

6

7

8

-7

8

C 44 8

C 44 8

C 44 8

C 44 9

C 44 9

DECEMBER

Mean

discharge

(cfs)

181

169

151

146

135

132

125

115

115

?120

C 44 9 5630

C 44 9 3160

C 44 9 1450

C 44 9 1110

C 44 10 1120

C 44 10 1150

C 44 11 1450

C 44 11 1880

C 44 11

C 44 1C

1540

1220

C 44 1U 1110

C 44 11 7690

C 44 11 30800

C 44 11 18100

31 6640

400 17" , 3200

480 2580

98C 2120

204 1100 61U 1890

190 650 33C 6420

14100

2978 2821 117749

JANUARY FEBRUARY

7050 14000

'.. 5310

3.. 3380

4. .

5..

24?0

1920

6. . 1610

soon

5600

4500

3700

3000

7.. 1410 1800

8.. 1310 1500

9.. 1270 1400

10.. 1210 1200

11.. 1150 1100

1?.. 1110 1000

13.. 1070 800

14.. 900 700

15.. 942

16.. 8R6

17.. 8?0 750

18.. 842 650

19.. [ 864

?0.. , 864

21.. 8no

2?.. 730

23.. , 67 s

?4.. 6??

?5.. 570

26.. 545

650

610

600

450

420

500

27.. 497 330

?8.. 4»9 3,0

29.. 473

30.. 458

31.. 465 340

Total 43652

S Computed by subdivi

A Computed from parti

graph.

300000 465 380 480 720

B 110000 458

51000 458

?9000 444

19000 423

13000 416

6900 437

B 5300 648

B 4800 919

3900 1030

3400 954

B 3000 ' 875

2300 820

1900 800

1800 70?

1900

1700

1500

1500

1400

1300

990

910

760

650

740

440

440

380

-,*0

430

570830

648

622

280 350 720

310 380 720

330 400 711

340

--

280

660

1300

1200

1200

530

600

450

400

596 480

56? 500

588 400

648 450

720 680

800 780

820

820

770

770

750

~~

18963

684

340 666

330 648

S 1300 675

3200 J 875

3300

3100

2400

1300

1100

1100

790

670

770

B 760

B 640

790

1300

1700

1300

2030

2660

3140

3840

4630

5020

5350

4990

4810

4200

3950

3660

3230

730 1600 2810

530 1200 ', 2410

500 B 1000 2070

500 B 1000 1900

500 1000 1760

1680

1630

1570

32640

Suspended sediment

 - - -T

Mean _

(ppm) d*y

550 ' 70

500

35"

 

300

330

?3n

17^

160CO

16000

1200-

760"

4600

3n

40

2f

10

lie

11C

71

53

S 1UCPOC

24000G

i " r o o -

300CT

140^C

420-1 13X.C

4100

700 n

3500

2000

13000

23000

24nor

22000

7i>or

4500

2700

2500

13000

28000

13000

2700C

5600C

330^0

1200C

60^0

S 4°0000

19QOOOO

IPDCOor

S 4100JO

60COC

3 1 C 0 0

1500C

13000

S 53000"

S lioonop

6394214

MARCH

471

700

600

5 n >

_

91"

1400

120C

96"

740

54,^

27f 470

38u 690

6 5 C 1500

1900 6700

4100 22000

450° 320UO

5400 B 46000

660C 68000

8600 110000

9200 12000C

8800 130000

8600 A 1200UO

100000

79000

6'HIT A 64000

5400 53000

4400 38COO

3900

3000

__

C 1700

C 1700

C 1700

C 1700

75059

ding day. B Computed fria estimate

y estimated-concentration C Composite period.

30000

20000

14000

10000

8100

7700

7500

72JO

11"1610

d-concentration graph
COLORADO RIVER BASIN

GILA RIVER BASIN--Continued

9-4485. GILA RIVER AT HEAD OF SAFFORD VALLEY, NEAR SOLOMON, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

APRIL

: Suspended sediment

Mean

dig- Mean Tons

charge concen- ^

(cfs) tratlon 

(ppm) a y

1540 r 1700 7100

1600 r ]700 7300

1740 r 700 8000

1780 f 7QO 8200

170Q r 700 8200

1650 f 700 7600

1400 r 700 6800

1320 r 700 6100

1210 4900

1110 3000

10BO r 810 2400

1040 r 810 2300

960 r H10 7100

935 f 810 2000

013 C 810 7000

869 r 810 1900

847 r 810 1900

814 C 810 1800

804 r 5RO 1300

773 r 5RO 1200

T1 ? r 270 530

6B5 r 270 500

640 C 270 470

613 r 270 450

570 r 270 470

53fl r 270 390

50H r 270 370

471 r 270 340

464 r 270 340

452 C 270 330

Mean

discharge

(cfs)

467

47^

458

45P

444

437

400

430

423

400

416

409

395

362

350

31R

306

281

269

252

247

236

230

200

200

195

176

167

159

155

MAY

Suspen

Mean

concentration 

(ppm)

C 270

C 270

C 270

C 150

C 150

C 150

C 150

r ] 50

C 150

C 150

C 150

C 150

C 150

C 150

C 1 50

C 76

C 76

C 76

_

C 47

C 47

C 47

C 47

r 47

C 18

I JUNE

ded sediment ' Suspended sedimei

- ~ Mean | -\

T dis- , Mean ,

per ,| charge "j.""^," per

da* | (cfs) (papm? ; da*

340 159 r 18 8

35v 139 4

30 135 4

50 127 C l r 3

40 | 110 C 10 3

8^-' loOCIC 3

70 96 C 1 3

70 87 C 10 2

70 82 C 1" 2

70 79Cl n 7

70 73 C 1^ 2

70 71 C 10 2

60 76 C 1" 2

50 73 C ID 2

40 71 C I"1 2

130 71 C 1'" , 2

120 63 C 10 2

58 63 C K 2

55 65 C 10 2

52 63 C 10 2

47 65 C 10 2

38 6 5 C 1 *

29 71 C K 2

27 65 C 10 2

25 60 C 10 2

25 63 C In 2

22 63 C 11 2

14 382 19"0n S 31CUC

13 120 5000 1600

8 127 9200 S 43-jC

SFPTEMBER

' 

3..

4 ..

5..

6. .

7. .

"< 

9. .

10..

11 ..

1?..

13..

14..

15..

16..

17..

18..

19..

70. .

71. .

27. .

23..

24..

25..

76..

27. .

28..

?9..

30..

31..

Total

Tota

Tota

177

11 3

100

P7

73

65

65

56

51

47

44

44

40

51

60

^8

54

40

51

68

fl5

°6

184

1] 7

] 17

177

143

?60

330

752

3175

1 discharge

1 load for

S Computed by

A Computed fr

5500

7000

660

400

260

1RO

110

 

 

55

70

38

47

100

_

^7

51

47

1500

2500

4700

3600

1800

1700

12000

for yea

year (to

B ]900 161

B 610

180

176

40?

94 | 396

4700 2100

6600 S 4300

27000 74000

14000 A 14^00

51 430

32 242

19 195 3600

11 273 5700

8 274

7 258

8 230

5 300

6

6000

21000

5200

1900

S 8400

<; 5900

6400 4500

3500 A 2200

8300

242

14 176 2300

13 167 1000

9 143 1000

8 205 5300

7 529 42000

3QOO

1100

450

300

S 4400

A 5=000

6 670 73010

280

570

540

2300

1500

661 54000

262 15000 A 11000

274 15000 11000

797 18000

1150

1100 620

620 363

660 i 287

A 8800

16000

1 1000

51758

242

214

27000

14000

S 46000

5 96000

5 23000

7400

3900

2300

1300

314 6000

10893

1500

750

S 6400

510890

r (cf s-days) .................................

ns). .........................................

subdividing day. B Computed f

om parti

graph.

y estimated-concentration graph.

C Composite

781

186

143

110

107

457

252

147

107

100

79

143

293

1810

1300

675

473

369

356

770

497

388

287

230

225

214

190

181

200

 _

10876

rom estimat

period.

3000

46C

A 2300

1000

39 r

14 r

34T 9R

29000 S 470CC

10000 6800

2300 A 910

__

260

5Bf

270

5j

600 23 r

4500 36 JO

24000 S 1700UU

19000 S 70000

18000

6400

220P 2200

500C 48-jO

13000

1COOO

3400

S 320U'J

13000

3600

230u

1601

2000 1200

1300 750

000

800

1100

_

"

460

390

590

__

307563

........ 327835

........ 9193745

ed-concentration
GILA RIVER BASIN Continued 

9-4602. FRYE CREEK AT THATCHER, ARIZ.

LOCATION. Lat 32°50'00", long 109°45'40", at gaging station on left bank, 1,300 feet downstream from 

Graham County.

DRAINAGE AREA. 24.3 square miles.

RECORDS AVAILABLE. Sediment records: July 1963 to September 1966. 

REMARKS. This station is operated in conjunction with a trap efficiency study of the Frye Creek dete

as opposed to the normal procedure of reporting daily values. Mean discharge values are revised f

Chemical analyses, in parts per million, July 1963 to Sept

Date 

of 

collection

July 31, 1963. . . . 

Dec. 10, 1965. . . . 

Sept. 12, 1966...

Mean 

discharge

(cfs)

7.5 

2.4 

51

Silica

(sicy

Iron 

(Fe)

Calcium 

(Ca)

44 

24 

56

Magnesium 

(Mg)

3.9 

3.2 

6.4

Sodium

(Na)

25 

9.6 

11

Potassium 

(K)

6.0

Bicarbonate 

(HCO,)

138 

78 

197

Carbonate

(CO,)

0 

0 

0

Sulfate 

(S0«)

Chloride 

(Cl)

Fluoride

(F)

Nitrat

(NO
Suspended sediment, July 

ions are reported, loads 

Date

July 21-22, 1963. . .

Jan. 20-21, 1965...

Dec 9 11

Dec. 30, 1965-Jan.2,

T Less than 0.50 t

Flow 

event 

no .

1

4

9

10

12

15

16

19

21

22

24

26

27

30

31

33

34

35

36

Outflow 

duration 

(hours) 1

13

5

9.5

6

12

2.75

2

9

2

3

5.5

2.5

8

3.5

10 

7

37

3.75

4.5

24

9

21

6.5

16.5

41

35.5

9.75

2

48

60

Total 

outflow 

(acre-feet)2

35.6 

.3

1.2

55.5

9.3

1.2

.2

20.3

.2

.9

2.0

20.4

38.9

.1

6.8

.8 

2.2

69.4

.5

.5

5.6

3.4

15.9

2.7

4.3

.2

9.9

30.1

15.1

8.9

.4

85.7

27.2
GILA RIVER BASIN Continued

9-4602. FRYE CREEK AT THATCHER, ARIZ. Conti

(Where no mean concentrations are reported, loads are computed from discharge

Date

Sept. 29-30. .......

T Less than 0.50 t

Flow 

event

47

on.

Outflow 

duration 

(hours)l

2 5

9 5

3

33

Total 

outflow 

(acre-feet) 2

42.0

Mean 

discharge 

for period 

(cfs)

15.4

1 Duration of event is based on time whe

2 Excluding outflow below 0.2 cfs.

flow is over 0.2 cfs.

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Sept. 12, 1966. . . .

Time 

(24 hour)

0900 

0900 

2225 

2150 

2400

0005 

1535 

1615 

1850 

1300

1300 

1100 

1100 

1740 

1545

Water 

temperature

(°F)

76 

76 

68 

72 

71

71

72 

69 

52

52 

68 

68 

76 

70

Sampling 

point

Discharge

(cfs)

7.5 

7.5 

130 

54 

8.6

8.2 

21 

48 

5.2 

2.4

2.4 

51 

51 

2.1 

166

Sediment 

concentration 

(ppm)

3620 

3620 

16800 

13500 

5130

5110 

25200 

14300 

4650 

2230

2230 

6820 

6820 

183 

7030

Sediment 

discharge 

(tons per day)

73.3 

73.3 

5900 

1970 

110

113 

1430 

1850 

65.3 

14.4

14.4 

939 

939 

1.04 

3150

Per

0.002

48 

2 

42 

41 

56

58 

45 

52 

65 

62

6 

63 

2 

85 

41

0.004

64 

7 

56 

53 

77

76 

58 

67 

85 

75

20 

81 

6

58

0.0

6

3

9

8

9

2
9-4710. SAN PEDRO RIVER AT CHARLESTON, ARIZ.

las 

rom 

LOCATION. Lat 31°37'40", long 110°10'30", at gaging station in Spanish land grant of San Jua 

of Charleston, Cochise County, 1.5 miles upstream from Charleston damsite, 8.5 miles upsti 

DRAINAGE AREA. 1,219 square miles, of which 696 square miles is in Mexico. 

RECORDS AVAILABLE. --Specific conductance; October 1964 to September 1966.

Water temperatures: July 1963 to September 1966.

Sediment records: July 1963 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 86*F Aug. 29; minimum, freezing point Dec. 6.

Sediment concentrations: Maximum daily, 30,000 ppm July 29; minimum daily, 1 ppm May 27, 28, 31, Ju

Sediment loads: Maximum daily, 96,000 tons July 29; minimum daily, less than 0.05 ton on many days 

EXTREMES, 1963-66. Water temperatures: Maximum, 89°F Sept. 9, 1963; minimum, freezing point Jan. 9, 

Sedime 

Sedi

t concent 

t loads:

ations: Maximum daily, 30,000 ppm July 29, 1966; minimum daily, 1 ppm May 27, 28, 

Maximum daily, 410,000 tons Aug. 14, 1964; minimum daily, less than 0.05 ton on sev

l analyses, in part October 1965 

Date 

of 

collection

Mean 

discharge 

(cfs)

84

Silica 

(SiOj)

Iron 

(Fe)

Calcium 

(Ca)

34

Magnesium 

(Mg)

5.6

Sodium 

(Na)

18

Potassium 

(K)

carbonate 

(HCOj)

134

Carbonate 

(COJ

0

Sulfate 

(SO.)

Chloride

(ci)

Fluorlde

(F)

Nitrate 

(NOJ

Temperatu (°F) of water, water year October 1965 to Septemb

October .......

December .....

January........ 

February. ...... 

March .........

June ..........

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

September .....

1

49

42

40 

42

2

54

40 

47

3

50

37 

39

67

4

57

38

38 

36

67

5

39

37 

36

67

6

32

42 

41

67

7

52

45

50 

41

62

8

52

50

41 

47

'if!

67

9

52

53

40 

45

67

10

56

51

36 

41

67

11

52

49

40 

43

12

52

45

35 

49

13

53

48

39

14

60

15

56

35 

47

Day

16

7

9

51

68

17

48

42

34

64

18

52

41

38

67

19

41

39

38

67

20

52

36

40 

46

65

21

54

41

45 

45

63
GILA RIVER BASIN Continued

9-4710. SAN PEDBO RIVER AT CHARLESTON, ARIZ. Cont

Specific conductance (raicromhos at 25°C), water year October 196

Day

2.... .

7.....

17.. ...

21..... 

12.....

24.....

27... ..

28... ..

)!.....

October

42J

360

340

J40

400

400 

3/0

42U

November

38U

420

430

42U 

390

420

420 

420

December

340

350

3t>o

390 

370

300

350 

3»0

400

Januar,

390

420

400

430

440

430 

440

430

February

360

380

370

360 

360

330

350

March

^si)

350

420

420 

440

410

410 

440

400

April

4UU

350

420

430 

410

420

430

386

May

4?0

390

310

360 

330

410

400 

400

370

376
COLORADO RIVER BASIN

GILA RIVER BASIN--Continued

9-4710. SAN PEDRO RIVER AT CHARLESTON, ARIZ.--Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are_reported, loads are estimated)

Day

Mea 

dis

char 

(cfs)

13.

14.

15.

16.

17. 

IS.

19.

20.

OCTOBER

Suspended sed

in 1 ~

c^ncen- T

I)" tration "j 

(ppm) d

 --f - --- --

3.2 C 15

3.0 C 15

3.0 15

3.0 15

3.2 15

3.2 15

3.2 i 15

3.2 1 15

3.2 15

3.2 15

2.8 C 15

2.7 C 15 i

2.7 C 15

2.7 C 15

2.8 C 15

2.8 C 15

3.2 C 15

3.6 1C 15

3.8 C 15

3.6 C 15

3.4 C 15

3.4 C 15

3.4 C 15

3.4 C 15

3.6 C 15

3.4 C 15

3.4 C 15

3.8 C 15

4.2 C 15

4.2 C 15

4.2 C 15

.ment f

Mean

ons diser charge

ay j (<=fs)

0.1 || 4.2

.1 ! 4.2

.1 ! 4.2

.1 4.4

.1 4.6

.1 4.8

.1 ! 5.0

.1 II 5.0

.1 " 5.3

.1 5.3

.1 5.3

.1 5.6

.1 ! 5.9

.1 5.9

.1 6.2

.1 , 6.5

.1 6.5

.1 6.8

.2 6.8

.1 6.8

.1 6.8

.1 7.4

.1 8.0

.1 > 8.0

.1 1{ 7.7

.1 7.4

.1 7.1

.2 7.4

.2 7.7 :l i 8 :|i

NOVEMBEF

Suspen

 _.

Mean

concentration 

(ppm)

C 28

C 28

C 28

C 28

C 28

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

C 13

I C

ded sediment

 t Mean

Tons disper i charge 

day (=fs)

0.3 8.0

.3 ' 7.7

.3 7.4

.3 7.1

.3 7.1

.2 7.7

.2 8.0

.2 9.5

.2 30

.2 26

.2 26

.2 18

.2 16

.2 16

.2 19

.2 25

.2 92

.2 129

.2 66

.2 40

.2 30

.3 33

.3 508

.3 382

.3 152

.3 97

.2 58

.3 45

.3 37

.3 30

28

>ECEMBER

Suspen i Mean

concentration 

(ppm)

44

C 18

C 18

C 18

C 18

C 18

C 18

C 18

1300

2700

3000

2100

500

300

1200

6900

10000

3000

1000

380

270

20000

9000

3000

1500

1200

550

380

300

250

ded sediment

r

Tons

per

day

1.0

.4

.4

.3

.3

.4

.4

.5

S 340

190

210

100

22

13

20

81

S 3100

3500

530

110

31

24

S 32000

9300

1200

390

190

67

38

24

19

184.8 1965.5 ~

JANUARY

1.. 32 

2.. 34 

3.. 29 

4.. 26 

5.. 25

6.. 25 

7.. 24 

8.. 23 

9.. 22 

10.. 19

11.. 18 

12.. 19 

13.. 19 

14.. 18 

15.. 17

16.. 17 

17.. 18 

18.. 24 

19.. ' 24 

20.. 24

21.. 26 

22.. 25 

23.. 25 

24.. 23 

25.. 23 !

26.. 22 

27.. 21 

28.. 22 

29.. 22 C 

30.. 21 C 

31.. 21 C

Total 708

?50 22 20 

500 46 20 

*50 35 19 

300 21 17 

270 18 17

210 14 17 

200 13 24 

150 9.3 43 

84 5.0 S3 

140 7.2 63

140 6.S 73 

120 6.2 73 

100 5.1 90 

150 7.3 86 

45 2.1 83

76 3.5 69 

43 2.1 63 

180 12 63 

150 9.7 56 

100 6.5 , 53

7 43 

7 40 

130 8.8 34 

87 5.4 30 

67 4.2 29

120 7.1 26 

110 6.2 26 

77 4.6 25 

38 2.3 

38 2.2 

38 2.2 

308.8 1285

FEBRUARY MARCH

60 B 3.2 23 150 .3 

C 27 1.5 22 100 .9 

C 27 1.4 20 120 .5 

C 45 2.1 20 89 .8 

C 45 2.1 19 C 100 .1

C 45 

140 

1700 

5200 

1200

1400 

960 

880

600

2.1 17 C 100 .6 

B 9.1 16 C 47 .0 

S 530 15 C 47 .9 

1200 , 15 C 170 .9 

200 15 C 170 .9

280 15 C 35 .4 

190 15 C 35 .4 

210 15 C 26 .1 

190 14 C 26 .0 

130 14 C 16 .6

450 j 84 15 C 16 .6 

450 ! 77 14 C 27 1.0 

400 ' 68 12 C 27 .9 

200 30 11 .8 

240 34 11 28 B .8

220 

220 

140 

120 

150

230 

220

26 11 29 B .9 

24 10 30 B .8 

13 9.6 C 11 .3 

10 9.6 C 11 .3 

12 9.6 C 16 .4

16 9.2 C 16 .4 

15 8.8 C 21 .5 

IS ' 8.8 C 21 .5 

 ' 8.4 15 .3 

 8.8 C 18 .4 

S.8 C 18 .4

1 

 1 3375.5 420.6; 68.7

S Computed by subdividing day.

B Computed from estimated-concentration graph.

C Composite period.
QUALITY OF SURFACE WATERS, 1966

GILA RIVER BASIN--Continued 

9-4710. SAN PEDRO RIVER AT CHARLESTON, ARIZ.--Continued

Suspended s

Day

1..

2..

3..

APRIL

1 Suspen

Mean

discharge

Mean

concen-

(cfs) tration 

(ppm)

8.0

7.6 19

7.2 19

4.. 7.2

5.. 7.2

6.. 7.2

7.. 7.2

8.. 7.2

9.. 6.8

10.. < 6.8

11.. 1 6.5

12.. 6.5

13.. 6.5

14.. 6.8

15.. 7.6

19

19

19

17

17

17

17

17

17

13

13

13

16.. 8.0 13

17.. 8.0 13

18.. 7.6 13

19.. 7.2 20

20.. 7.6 , 20

21..

22..

23..

24..

25..

26..

27..

28..

8.0 ! 20

7.6 20

7.6 20

7.6 !C 20

T.6 C 14

7.6 C 14

7.6 C 14

7.2 C 14

29.. 6.8 C 14

30.. 6.2

31.. 

ediment, water year October 1965 to Septembei

~ T

MAY

ded sediment

Mean

Tons dis"

per charge

day (cfs)

0.4

.

.

.

.

.:

.

. 

6.2

Suspen

Mean

concen-

(ppm)

-

6.5 8

5.6 C 13

5.6 C 13

5.3

5.3

5.3

4.8

4.3

4.3

. 4.3

4.1

3.9

C 13

C 13

C 13

C 13

C 12

C 12

C 12

C 12

C 12

3.7 C 12

. 3.6 ; C 7

3.6 C 7

. , 3.6 C 7

. 3.4 C 7

. 3.4 C 7

3.6 ,C 7

j i 3. 6 |C 8

3.4 C 8

3.2 C 8

3.2 C 8

. 2.8 C 8

. 2.6 C 8

.: 2.5iC 1

.

.

'-2

Total 218.5 j _[ 9.9

JULY

TTT~ ,.~.T^-

2.. 1.8 10

3.. 1.8 10

4.. 1.2 10

5.. .9 10

6.. .7 10

7.. .7

8.. , 1.4

9.. 4.3

10.. 2.3

11.. 1.2

10

10

C 10

0.1

2.3 C 1

2.4 C 12

2.5

2.4

C 12

C 1

121. 3^

AUGUST

84 5000

.1 63 5000

.1 527 7100

T

T

507 14000

244 14000

T 776

T 163

T 76

.1 l 48

. 1 46

20000

7000

2000

650

240

~"

ded sediment

Tons

d"

0.1

 1

.2

,2

.2

.2

.2

.2

.1

.1

:1.1.1.1.1.1.1.1.1.1.1.1.1.1.1 T

T

.1

.1

T

3.4

' 1966--Continu

 ~ ~ ~ 

sd

__ _ _

JUNE

Su

Mean

dis- M

charge con

(cfs) tr. 

(PI

2.3

2.2

2.1

1.9

2.1

1.9

1.8

1.6

1.6

1.8

1.8

1.8

1.6

1.9

1.9

1.8

1.9

2.1

1.8

2.1

1.9

1.5 !

1.2

1.0

.9

1.2

1.1

1.0

2.9

2.8

L "i

f 53.51

spended sediment

;an _

,m) day

1 T

1 T

6 T

6 T

6 T

6 T

T

5 T

5 T

5 T

5 T

5 T

4 T

4 T

4 T

4 T

4 T

4 T

3 T

3 T

3 T

3 T

3 T

3 T

3 T

3 T

3 T

3 T

11 0.1

11 .1

~ 1

.2

SEPTEMBER

1100

850

S 40000

S 25000

9200

S 48000

3100

410

84

30

T 159 9700 |S 5000

12.. 1.0

13.. 1.1 C 17

14.. 1.2 C 17

15.. 1.6 C 17

16.. 10 2000

17.. 10 . 3500

18.. 4.2 12000

19.. 2.2 300

20.. 43 9000

21.. 71 11000

22..

23..

24..

25..

26..

27..

28..

29..

30..

38 4600

11

?6

49

8.0

510

922

2000

2200

7000

500

22000

26000

906 30000

92 3200

31.. BO , 3*00

Total 2805.4 |

Total discharge for yeai

T

.1

.1

.1

58 5000

65 1000

73 4000

122 7000

S 290 126

94 783 25000

S 180 1230 20000

1.8

1000

2100

470

59

670 19000

469 15000

476 15000

222 5000

176

S 900 55?

930 134

11 90

S 50000

65000

S 96000

790

730

218556.6

76

4000

17000

4000

3800

1800

63 1400

64 1800

408 17000

182 9500

8732

(cf s-davs) ....................

780

180

790

2300

1500

53000

66000

34000

19000

19000

3000

1900

S 38000

1400

920

370

240

310

S 25000

4700

405164

97 4800 1300

76 2

73 1

58

74 3

36

34

29

25

22

?00 450

*00 280

bOO 94

300 600

500 49

*50 41

>00 16

100 6.8

100 5.9

35 2500 i 240

95 4

145 12

101 15

500 1200

500 4700

DOO 4100

192 13000 6700

213 ' 11000 6300

108 5

63 1

45

30

25

27

19

14

13

11

26 3

45 6

78 5

43 3

t - ~ - f 

1852 1

Total load for year (tons) ........................................................

500 1500

500 220

500 61

?90 23

>50 17

+90 36

?90 15

180 6.8

130 4.6

230 6.8

500 210

500 . 730

DOO 1100

DOO 350

30362.9

709363.6

S Computed by subdividing day. 

T Less than 0.05 ton.

C Composite period.
G1LA RIVER BASIN Continued

9-4710. SAN PEDRO RIVER AT CHARLESTON. ARIZ. Co

d/e,leruminatl0nS ° f sus Pended-se diment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

July 22, 1966.. . . .

July 28.. .........

Aug. 1, 1966......

Time 

(24 hour)

0830 

0730 

1600 

0830 

1100 

1200

1200 

2010 

2200 

2400 

0900 

0715

Water 

temperature

73 

70 

82 

71 

79 

86

86 

73 

70 

71 

68 

63

Sampling 

point

Discharge 

(cfs)

34 

962 

313 

1140 

1740 

69

69 

3900 

2620 

1380 

250 

83

Sediment 

concentration 

(ppra)

4600 

22500 

22600 

30200 

34600 

4000

4000 

40800 

27800 

23600 

12400 

6000

Sediment 

discharge 

(tons per day)

422 

58440 

19100 

93000 

162600 

745

745 

429600 

196100 

87930 

8370 

1340

0.002

60 

33 

52 

42 

39 

70

5 

37 

24 

31 

44 

44

Perc

0.004

83 

48 

62 

52 

48 

82

27 

40 

32 

41 

57 

58

0.00

90 

89

Particle-size analyses of bed material, water year October 196

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Time 

(24 hour)

1215

Water 

temperature

(°F)

86

Sampling 

point

Discharge 

(cfs)

80

Sediment 

concentration 

(ppra)

Sediment 

discharge

(tons per day)

Perc

0.016 0.031 0.06
GILA RIVER BASIN Continued

9-4734. SAN PEDRO RIVER NEAR WINKELMAN, ARI

LOCATION. Lat 32°56'35", long 110°44'55", at gaging station 3.5 miles sou

and 4 miles upstream from mouth.

DRAINAGE AREA. 4,449 square miles, of which 696 square miles is in Mexico

RECORDS AVAILABLE. Specific conductance: October 1964 to December 1965 (

Water temperatures: July 1962 to September 1963, February to December 1

Sediment records: July 1962 to December 1965 (discontinued). 

EXTREMES, 1962-65. Specific conductance (1964-65): Maximum daily, 1,150 

daily, 368 micromhos Feb. 8, 1965.

Water temperatures (1962-63): Maximum, 101°F Sept. 20, 1962; minimum, 4

Sediment concentrations: Maximum daily, 110,000 ppm July 29, 1962, Aug. 

daily, 2 ppm May 3, 5, 1963.

Sediment loads: Maximum daily, 1,100,000 tons Aug. 15, 1964; minimum da

days each year.

Specific conductance (micromhos at 25°C), October to D

Day

1...

2...

3.. .

4.. .

5...

6...

7...

8...

9...

10...

11...

Oct.

940

940

900

890

890

880

880

860

880

910

850

Nov.

910

910

910

900

820

830

850

830

840

860

850

Dec.

990

990

1000

990

910

900

990

1000

1000

330

350

Day

12...

13., .

14. ..

15.. .

16. ..

17. ..

18. . .

19...

20. ..

21.. .

22...

Oct.

870

780

780

780

820

790

870

870

870

860

860

Nov.

860

850

910

900

900

900

950

900

900

890

940

Dec.

340

Temperature (°F) of water, October to December 

1 2

50

3 4 5 6 7 8 9 10 1 1 12 13 14 15

Day

16 17 18 19 20 2
COLORADO RIVER BASIN

Day

GILA RIVER BASIN Continued 

9-4734. SAN PEDRO RIVER NEAR WINKELMAN, ARIZ. Continued

Suspended sediment. October to December 1965 

here no concentrations are reported, loads are estimated)

Mear

discharg

(cfs)

OCTOBER

Suspended sedimen

n r ~ r

Mean ~ 

concen- on

(ppm) d*?

2.8' 51 T

7.B 40 B T

7.8' 30 T

7.6 36 T

7.61 ?fi T

2.4 7 1 T

2.4 Pfi I

2.4

2.4

2.4

2.4

7.4

2.4

77 T

"'7 T

PP 1

57 T

Rn l

f>3 1

2.4 49 T

2.4

7.4

27 T

77 T

2.4 40 T

2.4 57 T

7.4 ''O T

NOVEMBER l| DECEMBER

t | Suspended sediment | Suspended sediment

- H< Mean

discharge

l f«i

- ~ 1 Mean j

Mean Tons ' di»- Mean Tons 

concen- charge concentration T 1 , , , tration p,_

(,ppm) , , (ppmj

1 2.2l 26 T I 8.0 7 B T

li 2.2 26

II 2.2 28

2.2

,, 2.2

2.4

' 2.4

23

C 27

T 7.0 7 T

T , 6.5 7 T

T 6.0' 7 T

T | 5.5' 5 T

C 27 T 5.5' 12 T

3 T 5.5 7 T

2.4' 3 T 5.5 11 ' T

7.4

2.4

2.4

7.4

3 ! T 6.5 72 1

5

5

5

2.4 10

2.4

2.6

T 1150 44000 S 160000

T 2590 ' 39000 280000

T ! 188 ' 1300" 6600

T i 20 i 200

CIO T 15 80

C 10 r 800 | 700UO

7.6 C 10

2.6 C 8

2.6 C 8

2.8 C 8

T 700 600UO

T 1200 100000

T 1200 100000

T 500 i 40000

27

23

 >4

75

76

77

7R

79

30

31

2.4

..i 7. 7

.. ' 7.7

.. 7.?

.. ?.?

7.7

2.2

2.2

2.2

?.?

Total 74.2

To tal discharge

Total load for

S Computed by

T Less than 0

50 T 3.5k

i 53 T 3.5! C

1 IT) ' 1 , 4.0 C

; 210 1 : 5.0:

47 T 26 '

51 T , 6.0!

40 T 6.5

30 T 7.0

54 T -7.5:

" . _ T i -"1

6 f 121. 1

10 T 8000 700000

11 T 10000 800000

11 T 2000 2^ n OO"

47 1 1000 100000

4700 S 610 450 20000

70 1 200 100CO

38 1 100 3000

68 1 100 30',0

7 T 350 700

 ' 1300 100000

 ' 614 32169.01 2761581

for period Oct. 1 to Dec. 31, 1965 frfs-davsl . . . ........ ......... .. 32364. S

period Oct. 1 to Dec. 31, 1965 (to

subdividing day.

.50 ton.

ns) ................................... 2762201

B Computed from estimated-concentrat ion graph.

C Composite period.
QUALITY OF SURFACE WATERS, 1966

CO

en . 

0) C3 Decemb lative w

0 c

%* i .~~

0 C ^i +j O (U

o 3 «

° .3 £

01 S <» 

N <y ;z!

B ^ ' £

OB.S

 H QJ

££* *& » 

«3f

C4 >>t!

discharge ment 

ube; C,chemical: sual accumulatior

uspended-sedi withdrawal t3m

S, sieve;V, v

pi

S

CO _- 

.. ft

O to

If

3° si

o ^

if

ID 

0.

t 

C 

J

1

 H 

C 

11

e

 a

01m 

 a

 a

c

01

a, m

&

c 

a 

£'1 

y

Sediment

u

Water tem3 

I °

S

1~a

indie ze 

than si

t finer

a>

ft

discharge

c c 

o ^

0> 

bo b

£ ^

Q

S.!

3 C

a t

si O. t

Time (24 hour)

c 

o

JJ 

'o

"o 

a>

Q

X

3 

c:

[S

o 

o 

o

M

0 

O 

O

rt

8

o

o

M

O

CM,-t

0

Mto

O

O

,-t

n 

o

0

EC

rH 

O

O

CO

o

o

o

o

IN 

o 

o

0

X

§Ll 

01

a 

3

1

J;

D

ioh

s ^«-

u u u u

* s & & &&&&

1 00 1 1 O O 1

o 01 oo i o ^J en i i-t

SSS8

S83S

rH * O 0> 

CO t^ > CO

co m * n i? *p *p t?-

o t~o et 

co CM CM in

n rt rH O 

N N CM *

O O O O 

0 M 0 *

CTi f CO > 

O * CM

O O O O 

O O O O «* CO O H 

CO O CO CO M * * H

O O O to *f CM CTi ,-t 

O * O CM <Ji ro CM

p- 1 1 to 

lO 1 1 *

o o 10 o

*P C3 rH H

r- CM^I co

Ortrt 0

lOto

3> 

H

H rt rt CM

O 0 0 0

dJ OJ OJ OJ Q a aa
9-4735. SAN PEDRO RIVER AT WINKELMAN, ARIZ.

LOCATION. Lat 32°58'38", long 110°46'll ff , at gaging station, 0.5 mile south of 

upstream from mouth.

DRAINAGE AREA. 4,471 square miles, of which 696 square miles is in Mexico. 

RECORDS AVAILABLE. Specific conductance: January to September 1966.

Water temperatures: January to September 1966.

Sediment records: January to September 1966. 

REMARKS. This station replaces 9-4734. San Pedro River near Winkelman, which wa

Specific conductance (micromhos at 25°C), January to Sept

Day

31.....

Average

October November December January

1100

1070

February

77B

March

98

1100

1040

April

1050

May 
GILA RIVER BASIN Continued 

9-4735. SAN PEDRO RIVER AT WINKELMAN, ARIZ Contin

( F) of ry to September 19

Month

January........

February. ...... 

March .........

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

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

September .....

1

46 

73

87 

67

2_, 3

49

75 

85

77 

76

52 

41

65 

73

84 

79

4

43 

79

70

5

47 

53

78 

92

64

6

49

83 

93

64

7

52

78

64

8

53 

43

75 

88

65

9

52 

39

82

85

64

10

40 

70

83

80

n

42 

75

82

83

73

12

42 

71

85

68

1314

45 

75

83 

88

67

38 

72

78

66

IP

38 

74

85

69

Day 

16

38 

76

68

17

47 

38 

74

78 

76

18

47

80 

76

78 

84

19 

50

;;

72 

71

20

46

- 

76

78

78 

68

21

47

77 

77

78 

68

Periodic determinations of suspended-sediment discharge and particle size

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; U, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

0750 

1630 

1645 

1830 

0845 

0600

0640 

1830 

0830 

0850 

1210 

0640

Water 

temperature

(°F)

43 

43 

89 

82

78 

72

70 

80 

70 

66

65

Sampling 

point

Discharge 

(cfs)

432 

764 

1910 

1080 

540 

90

268 

322 

50 

950 

239 

14

Sediment 

concentration 

(ppm)

5250 

11100 

96900 

61300 

41400 

23500

41700 

42100 

23800 

29000 

15100 

170

Sediment 

discharge 

(tons per day)

6120 

22900 

499700 

178800 

60360 

5710

31740 

36000 

3210 

74380 

9740 

6.43

Perce

0.002

24 

27 

27 

37 

48 

71

53 

54 

54 

32 

29 

56

0.004

34 

35 

37 

49 

60 

90

67 

68 

67 

40 

40 

68

0.008 
COLORADO RIVER BASIN

GILA RIVER BASIN Continued 

9-4735. SAN PEDRO RIVER AT WINKELMAN, ARIZ. Continued

Suspended sediment, January to September 1966 

(Where no concentrations are reported, loads are estimated)

Day discharge

(cfs)

275

175

75

40

75

JAKUARY FEBRUARY

Suspended sediment

Mean T

concentration P 

(ppm) day

Mean

discharge

(cfs)

Suspended sediment

Mean

concentration

(ppm)

20000 14 110

3000 14 150

1500 14 180

30 14

10 14

180

140

day

MARCH

discharge

(cfs)

Suspended sediment

Mean 1 _

(ppm) ay

B 4 ' 31 29^ ' 24

B 6 30 300 24

7 29 220 17

7 28 C 140 11

5 27 C 14C 10

370

230

340

300

250

170

150

130

2800

2800

1900

1600

1000

970

560

560

910

570

200

170
QUALITY OF SURFACE WATERS, 1966

GILA RIVER BASIN Continued

9-4735. SAN PEDRO RIVER AT WINKELMAN, ARIZ.--Continued 

Suspended sediment, January to September 1966 Continu

JULY ;,

f Suspended sediment !

Mean - ~ T ~~ " Mean

Day ' dis- Mean , T(jns Jia_

i charge concen- , ^r charge

! (ppm) y

1 

1.. 0 0 11

2.. 0 ' 0 3-

3.. 0 0

4.. 0 | 0 9«

5.. 0 0 34r

6.. 0 0 29r

7.. 0 0 57

B.. 0 0 15'

9.. 0 0 i IB]

AUGUST SEPTEMBER

Suspended sediment 1 Suspended sediment

r -- ll Mean I

Mean ._ !' dis- Mean i ^,Q

concen- , j charge | concentration ^ (cfg) 1 traUon £

(ppm) ay (ppm)

I

ns

60000 ' 5 21000 224 38000 24000

31000 S 3800 117 2500C ' 7

.5 2°000 39 137 35 r'OC S 15

63000 B 78000 50 1600" ' 2

66000 63000 30 2800

45000 B 37000 20 330^

83000 15 1000

11000 12 150"

13000 10 44"

10.. 0 0 70 4200 10 250

11.. 0 0 115 °0000 B 30000 11 ' 50J"' S

12. . . 0 0 25i

13.. ,0 0 3-

14.. 0 | 0

96000 A 71000 201 ' 37000 S 23

9700 | 866 42000 S 11C

.4' 760 656 23000 S A7

900

01,"

2CC

230

IB"

4C

49

12

7

360

00"

000

QUO

15.. 0 1 0 9.7 4BOOO B 1300 537 , 26000 S 540UO

16.. 0 0 E

17.. 0 0 20-

18.. 0 0 941

19.. 0 0 H9f

.7 35000 850 579 , 31000 5 51

63000 S 50000 223 isnnn u

B3000 5 230000 150 15'TOO 6

61000 S 210000 90 11000 2

ODD

OJC

lOr

700

20.. 0 0 653 52000 95000 60 8000 13 "JO

21.. 100 6000 640 52000 S 97000 50 4400

72.. 75 10000 50]

23.. 20 1000 20C

24.. 2 6 . 6f

25.. 16 2000 334

46000 65000 30 4200

30000 16000 23 220P

22000 3600 1° 1800

36000 34QOO 12 800

26.. 10 20 156 32000 14000 11 34"

?7.. 2 3 76

2fl.. 12 20 5<:

'9.. 832 75000 5 210000 V

30.. 536 i 80000 120000 41

31.. 206 75000 S 50000 27:

25000 5100 11 260

15000 2400 14 16:

10000 1'JOO 18 22 n

12000 S 3000 19 280

44000 34000

590

340

140

92

26

10

8

6

11

14

Total 1811 40084° 7653.3' ! 1287749 4^25 357315 

Total discharge for period Jan. 1 to Sept . 30 , 1966 (cf s-days) ......................... 19644 . 1

Total load for period Jan 1 to Sept 30 1966 (tons) ... . . ... . . . 2113060 

S Computed by subdividing day. B Computed from estimated-concentration

A Computed from partly estimated-concentration graph. graph.
GILA RIVER BASIN Continued

9-4740. GILA RIVER AT KELVIN, ARIZ. 

(Irrigation network station)

LOCATION. Lat 33°06'10", long 110°58'33", just upstream from mouth of Mineral Creek, 1,200 feet upstr

downstream from San Pedro River, and 19.5 miles upstream from Ashurst-Hayden Dam.

DRAINAGE AREA. 18,011 square miles upstream from gaging station, of which 5,125 square miles is down

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1966.

Water temperatures: December 1950 to September 1966.

Sediment records: January 1958 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 4,330 ppm Jan. 3; minimum, 382 ppm Dec. 15-20.

Hardness: Maximum, 2,610 ppm Jan. 3; minimum, 205 ppm Dec. 31.

Specific conductance: Maximum daily, 4,960 micromhos Jan. 3; minimum daily, 411 micromhos Dec. 17.

Water temperatures: Maximum, 80°F on several days during October and November; minimum, 42°F Feb. 

Sediment concentrations: Maximum daily, 54,000 ppm Aug. 19; minimum daily, 19 ppm Nov. 19.

Sediment loads: Maximum daily, 740,000 tons Dec. 23; minimum daily, 1 ton on several days during No

EXTREMES, 1950-66. Dissolved solids: Maximum, 4,330 ppm Jan. 3, 1966; minimum, 294 ppm Sept. 24, 195

Hardness: Maximum, 2,610 ppm Jan. 3, 1966; minimum, 152 ppm Sept. 1-30, 1957.

Specific conductance: Maximum daily, 5,120 micromhos May 22, 1961; minimum daily, 407 micromhos Jan

Water temperatures: Maximum, 98°F July 25, Aug. 20, 1953; minimum, 38°F Jan. 13, 1962.

Sediment concentrations (1958-66): Maximum daily, 139,000 ppm July 30, 1961; minimum daily, 1 ppm M

Sediment loads (1958-66): Maximum daily, 740,000 tons Dec. 23, 1965; minimum daily, less than 0.50 

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). 

point and gaging station except during periods of heavy local rains. Load figures include sediment 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-15, 1965..

Jan. 1-2, 1966... 

Jan . 3 ...........

Mean 

discharge 

(cfs)

119 

35.4 

16.3 

11.8 

212

33. 3 

81.1 

3053 

357 

1520

1800 

8137 

694 

1980 

597 

341

Silica 

(Si02)

26

Iron 

(Fe)

Calcium 

(Ca)

138 

293 

518 

542 

262

355 

204 

86 

164 

67

164 

78 

178 

64 

120 

749

Magnesium 

(Mg)

28 

59 

82 

92

58

67 

46 

13 

31

11

50 

14 

38 

11 

27 

180

Sodium 

(Na)

196 

217 

230 

236 

106

246 

295 

42 

108 

36

85 

58 

139 

40 

95 

282

Potassium 

(K)

31

Bicarbonate 

(HCOj)

186 

144 

86 

72 

108

166 

202 

188 

174 

132

136 

155 

201 

124 

198 

328

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

1770

Chloride 

(Cl)

250

Fluorlde 

(F)

1.4

Nitrate 

(NO,

1.1
GILA RIVER BASIN Continued

9-4740. GILA RIVER AT KELVIN, ARIZ. Continu

Chemical analyses, in parts per million, water year October 1965 to S

Date 

ol 

collection

Jan 4-31, 1966..

Sept. 18-30......

Weighted 

average. .....

Time-weighted

Tons per day. . .

Mean 

discharge 

(cfs)

165 

193 

838 

253 

156 

565

586 

552 

689 

866 

969 

986

913 

1056 

560 

603 

1281 

180

_

574

Silica 

(SiOj)

25

26 

28

..

_

Iron 

(Fe)

Calcium 

(Ca)

206 

191 

91 

176 

216 

100

82 

70 

70 

66 

132 

82

93 

77 

78 

78 

92 

141

94

161

145

Magnesium 

(Mg)

50 

47 

16 

38 

49 

23

18 

17 

14 

14 

24 

15

18 

13 

17 

16 

14 

27

19

32

30

Sodium

(Na)

180 

183 

55 

125 

157 

128

112 

96 

100 

109 

101 

103

94 

76 

112 

112 

50 

139

97

137 j

150

Potassium

(K)

4.7

-

5.4 

5.8

__

_

Bicarbonate 

(HCO,)

216 

218 

164 

204 

210 

166

152 

150 

152 

160 

240 

190

222 

224 

182 

188 

222 

212

172

170

267

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

-

208

135 

131

-

Chloride 

(Cl)

-

46 

140

155

Fluoride 

(F)

0.6

.7 

.9

Nitrat

(NO

2.6

23 

2.
COLORADO RIVER BASIN

HOOOO OOOOO OOOOO OOOOO OOOOO!

100 O O O O C
GILA RIVER BASIN Continued

9-4740. GILA RIVER AT KELVIN, ARIZ. Continued

Temperature (°F) of water, wate October 1965 to September 1966

Month

November .....

December .....

T uaf

February. ...... 

March

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

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

August ........

September .....

1

80

63

50

58

76

60

2

80

70

56

60

7*

60

3

76

69

54

63

76

60

4

80

60

54

64

74

60

5

77

~

59

60

78

59

6

78

57

54

58

67

60

7

72

55

54

60

74

60

8

70

54

48

60

70

60

9

70

55

50

64

67

60

10

6?

42

65

70

60

11

64

54

48

63

6?

69

12

78

54

45

64

6?

67

13

76

54

45

66

ft?

65

14

68

49

60

67

68

65

15

ftfl

49

57

64

ft!

70

Day

16

78

47

55

64

AO

70

17

76

48

52

68

ft?

70

18

78

48

54

64

65

72

19

7fl

49

54

62

ft7

74

20

70

57

60

ft7

75

21

ftS

55

57

62

ft7

77

22

61

55

54

66

65

76

23

ftO

50

55

65

ftft

70

24 2

ft?

48

55

65

ft5

70

f

5

5

6

f

7

determinations of suspended-sediment discharge and particle size, water year Octobe

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decantation; N, in 

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled water)

Date of collection

Aug. 1.............

Sept. 13. ..........

Sept. 13.... .......

Time 

(24 hour)

1000 

1650 

2115 

2115 

1615

0700 

1600 

0600 

0700 

0700

0700 

0800 

1730 

1730 

0600 

1800

Water 

temperature

(°F)

54

69 

78 

70 

74 

76

62 

65

70

73

Sampling 

point

Discharge 

(cfs)

1630 

4900 

482 

482 

24000

980 

1390 

1820 

742 

800

726 

1380 

3430 

3430 

506 

193

Sediment 

concentration 

(ppm)

14700 

17800 

7140 

7140 

14400

13100 

45500 

52200 

14500 

42300

4140 

48900 

25700 

25700 

16300 

8490

Sediment 

discharge 

(tons per day)

64690 

235500 

9290 

9290 

933100

34660 

170800 

256500 

29050 

91370

8120 

182200 

238000 

238000 

22270 

4420

Suspen

Percent finer than s

0.002

27 

34 

40

1 

43

44 

43 

47 

49 

45

37 

42 

32 

2 

39 

20

0.004

36 

44 

50 

2 

60

57 

57 

59 

61 

60

46 

52 

44 

2 

50 

27

0.008

63

7

51 

7

0.016

56 

63 

72 

75 

87

82 

85 

82 

78 

80

62 

78 

65 

63 

68 

62

0.031

80 

81

80

77
COLORADO RIVER BASIN

GILA RIVER BASIN Continued

9-4740. GILA RIVER AT KELVIN, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966

OCTOBER

[ Suspended sediment

_ Mean 

Day dig. Mean TonB

charge

1 . .

2..

(cfs)

134

141

3.. 146

4.. 149

5. .

6..

7..

8..

9..

146

148

148

148

148

10. . 109

11..

12..

13..

14..

104

100

66

53

15.. 45

16.. 53

17.. j 44

ner tration 

(ppm)

310

400

240

270

220

day

110

150

95

110

87

200 '' 80

170 ' 68

190

190

160

150

B 76

76

47

42

100 27

90 16

77 11

90 | 11

77 11

110 13

18.. 34 150 14

19.. ?4

20.. 22

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31 ..

Total

1 . .

'6

18

70

74

73

54

5

4

5

NOVEMBER

Mean 

discharge

(cfs)

12

13

14

11

10

11

10

9.4

10

11

9.4

11

12

9.7

11

11

11

11

12

12

11

3 13

14 60 B 2 18

18 100 , 5 21

?0 270

12 180

15

6

13 100 4

16 180 ' 8

15 650 26

13 , 300 , 11

15

2142

51 2

1140

JANUARY

751

2.. 443

3.. . 341

4 . .

5..

6..

7. .

8..

9. .

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

276

246

218

2200

800

1400

1900

600

800

206 2100

197 1200

1S4 470

178 2700

4500

960

1300

1400

400

311

224

Suspended sediment

Mean

concen-

(ppm)

200

110

120

84

65

69

54

40

32

78

25

80

120

53

68

63

62

54

19

32

T

per

day

6

4

5

2

2

2

1

DECEMBER

Mean 

discharge

(cfa)

20

57

Suspended sediment

Mean

concentration 

(ppm)

_

72 27"

70 , 280

75 360

96

100

T

per

day

E 27

E 150

52

53

B 73

36C i 93

320

1 ; 100 210

1 140 37"

2 3670 22000

1 4490

2

4

1

2

2

2

2

1

1

34 1

98

260

200

4900

1800

1000

307

407

1540

1150

2130

2040

738

369

251

16000

86

57

S 800

S 230000

190000

11000 S 37000

3000

4800

6700

5000

6000

11000

4500

4000

3000

3 3350 25000

13 14600 19000

11

2500

S 9700

S 27000

160UO

S 41000

61000

9000

B 4000

2000

A 230000

A 740000

8100 10000 220000

5 5700 i 1710 10000 i 46000

1100 892 6500 j 16000

100 510 140 565 2800 4300

45 520 63 412

30 1 470 I 38 ' 331

25 470 , 32

-- ]

1019. 5| 7145

FEBRUARY

142

131

122

111

109

300

200

240

200

150

B 470 109 i 300

1200

640

230

1300

170 1900 870

164 850 380

155 300 130

155 ! 350 150

155

155

144

158

ISO

174

168

158

151

142

136

130

124

121

120

120

136

6156

1400 590

1700 IB 710

1400 B 540

1800 770

900 440

270

250

250

290

220

210

580

1400

400

160

120

160

-

130

B 110

110

120

84

77

200

470

130

52

39

59

18561

116 I 290

707 3100

120

71

79

60

44

88

91

1470

1980

52232

1200 1300

1800 1600

5000

7000

--

S 28000

37000

1954791

MARCH

166

164

166

300

510

1100

157 550

148 420

130

230

490

230

170

144 ! 1300 510

139 ' 530 200

S 9900 ' 167 300 140

1190 7000 22000 274 810 600

990 2800 7500 371 1000 ' 1000

845

935

746

630

534

425

354

312

285

265

260

244

222

202

189

182

182

168

10707

2600

2200

1900

2400

1500

1000

650

700

580

490

610

490

1200

1700

600

330

340

320

~

~

5900 465

5600

3800

4100

2200

B 1100

620

590

450

350

430

320

720

930

310

160

170

150

!

67853

506

490

494

532

550

562

566

508

566

1000 1300

740 1000

400

620

800

800

450

650

1300

700

574 590

634 580

662

662

662

662

658

658

650

646

642

14245

800

B 530

830

1100

1200

660

990

1800

1100

910

990

1400

1200 210Q

900

650

420

300

470

470

470

-

1600

1200

750

530

820

820

810

26160

E Estimated.

S Computed by subdividing day.

A Computed from partly estimated-concentratic graph.

B Computed from 66 

graph.

timated-concentration
QUALITY OF SURFACE WATERS, 1966

GILA RIVKR BASIN Continued

9-4740. GILA RIVKR AT KELVIN, ARIZ. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

j APRIL MAY

| | Suspended sediment |

Day

1..

2..

3..

4..

5..

6. .

7..

e..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

10..

20..

21..

2?..

23..

24..

dis- Mean

charge

(cfs)

642

642

638

64?

646

658

654

622

598

602

590

566

542

542

546

558

554

562

554

566

concen-

(ppm)

550

Tons disper 

day

950

550 950

520 900

1000 1700

580

520

650

1000

920

1100

680 IB 1100

530 860

550

730

charge

(cfs)

558

552

550

546

538

534

538

554

566

890 ! 566

1200 1 566

1100 1700

1500 , ?200

850 1200

3RD 560

410 620

830

550

700

530

570 330

570

574

570

25.. 562

26.. 562

27.. 566

1300

1200

830

1000

810

510

562

558

550

550

550

550

550

562

558

558

7000 II 550

1200 1900

330 510

820 1200

2600 3900

1800 2800

28.. 554 7QO 1000

29.. 566 1100 1700

30.. 558 850 1300

31.. 

550

554

558

566

562

550

542

Suspended sediment

Mean

concentration

(ppm)

350

C 960

C 960

C 780

C 780

C 390

C 390

C 390

C 690

C 690

1200

C 500

Tons

per 

day

530

1400

1400

1100

1100

560

570

580

JUNE

Suspended sediment

dis- Mean _

charge

(cfs)

538

534

582

626

638

626

618

tration 

(ppm)

590

480

380

C 910

C 910

C 2300

C 2300

626 360

1100 634 C 480

1100

1800

760

C 500 750

C 410 ! 610

C 410

C 430

C 430

C 1300

C 1300

C 440

C 440

610

640

640

1900

2000

660

640

660

660

C 480

C 550

C 550

658 620

665

675

650

C 55C

710 C 550

770 900

per 

day

B 860

B 690

B 600

1500

1600

3900

3800

610

820

830

980

980

1100

1200

10UO

1100

1900

770 700 1500

770 ;' 560 1200

770 650

660 760

C 890 1300

C 890 j 1300

C 1000 1500

C 1000 1500

C 970

C 970

C 520

1500

1500

770

720

750

930

C 500

C 500

750 C 470

740 C 470

750

750

C 590

C 590

754 320

1400

1900

970

1000

950

940

1200

1200

650

C 520 760 762 C 470 970

538 [C 2600 I 3800 762 C 470 970

538 C 2600 3800 --

!:: 3..

4..

5..

6..

7..

8..

9..

JULY

766

775

770

790

795

795

805

840

860

350

500

420

500

470

420

600

600

530

720

1000

870

1100

1000

900

1300

1400

AUGUST

758

626

598

708

877

698

1460

33000

12000

4500

7500

29000

10000

52000

845 21000

1200 614 18000

S 74000

20000

7300

14000

S 75000

19000

S 220000

SEPTEMBER

712 13000

634 7800

615

570

7800

3300

538 1400

25000

13000

13000

5100

2000

526 1300 1800

530 1800 2600

S 50000 , 538 1400 2000

S 32000 j 554 1100 1600

10.. 

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

2?..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

Total

860 

865

895

950

950

945

953

935

940

920

908

969

915

890

865

8R5

850

796

810

1520

1530

795

28142

discharge

load for i

350 

550

550

450

630

750

650

770

580

650

580

8900

3000

4500

730

1700

1000

630

550

37000

50000

20000

for yea

rear (to

810 

1300

1300

1200

1600

1900

1700

1900

1500

1600

1400

S 25000

7400

11000

1700

4100

2300

1400

1200

S 190000

S 220000

S 49000

538800

p (cfs-days) ,

is) ..........

550 

758

866

899

795

730

702

1080

1650

2130

1280

1240

1000

702

566

646

578

474

436

494

526

756

26042

11000 

9000

8100

12000

5000

3300

1900

9500

46000

54000

41000

36000

31000

18000

8000

12000

14000

6000

4000

2500

2100

17000

16000 

18000

S 26000

S 29000

11000

6500

3600

28000

S 230000

320000

150000

120000

84000

34000

12000

S 24000

22000

7700

4700

3300

3000

S 37000

1701100

558 

574

886

2720

1720

698

826

441

238

170

120

100

170

174

172

187

202

200

204

202

206

15985

1000 

1000

8000

23000

23000

18000

27000

15000

9500

7500

5500

3000

2400

1300

1000

1100

1300

960

1100

1200

850

1500 

1500

S 27000

S 190000

S 110000

S 41000

S 62000

18000

6100

3400

1800

810

1100

610

460

560

710

520

610

650

470

534900

212038.5

4965480

S Computed by subdividing day.

B Computed from estimated-concentration graph.

C Composite.
GILA RIVER BASIN Continued

9-5020. SALT RIVER BELOW STEWART MOUNTAIN DAM, AR

(Irrigation network station)

LOCATION. Lat 33°33'00", long 110°34'35", just downstream from dam, 3.5 miles upstream from gaging s

from Verde River, Maricopa County.

DRAINAGE AREA. 6,232 square miles, upstream from gaging station, of which 21 miles is downstream from 

RECORDS AVAILABE. Chemical analyses: December 1950 to September 1966.

Water temperatures: December 1950 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 783 ppm Oct. 5-13; minimum, 402 ppm Mar. 5-31.

Hardness: Maximum, 222 ppm Mar. 3, 4; minimum, 128 ppm Mar. 5-31.

Specific conductance: Maximum daily, 1,450 micromhos Nov. 6-21; minimum daily, 716 micromhos Mar. 

Water temperatures: Maximum, 71°F Sept. 7; minimum, 51°F on several days during February and March. 

EXTREMES, 1950-66. Dissolved solids: Maximum, 1,300 ppm Aug. 21-28, 1951; minimum, 361 ppm Mar. 21-3

Hardness: Maximum, 270 ppm Nov. 1-30, 1956; minimum, 128 ppm Mar. 5-31, 1966.

Specific conductance: Maximum daily, 2,490 micromhos Aug. 20, 1951; minimum daily (1950-64, 1965-6

Water temperatures: Maximum, 84°F Aug. 24, 26, 27, 1951; minimum (1950-64, 1965-66), 49°F Feb. 14, 

REMARKS. No samples collected Oct. 14 to Nov. 4, Nov. 24 to Dec. 22, Jan. 1-31, May 1-6. No inflow b

periods of heavy local rains.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 5-13, 1965. . 

Nov. 5-23. .......

Feb. 4-28, 1966.. 

Mar. 1-2. ........

Mar. 5-31. .......

Sept. 1-30.......

Weighted 

average. .....

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge

(CIS)

175 

242 

2548 

1267 

1990 

1850

1552 

1607 

775 

818 

1253 

1213 

1126

_

A 1321

Silica 

(S10,)

25 

20 

21 

17 

14 

16

17 

18 

19 

18 

.19 

19 

17

18

18

55

Iron 

(Fe)

Calcium 

(Ca)

50 

50 

48 

39 

39 

57

36 

38 

42 

42 

43 

42 

40

41

42

123

Magnesium 

(Mg)

16 

17 

13 

12 

11 

19

9.2 

10 

8.5 

9.5 

7.4 

7.8 

9.7

9.7

10

29

Sodium

(Na)

219 

216 

177 

129 

117 

204

98 

97 

100 

98 

100 

99 

94

108

116

328

Potassium 

(K)

3.9 

4.1

_

_

Bicarbonate 

(HCO,)

172 

166 

154 

136 

134 

182

122 

128 

130 

134 

130 

132 

134

133

136

402

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

__

_

Sulfate

(so«)

53 

52 

46 

40 

38 

59

36 

37 

39 

39 

38 

38 

39

39

40

118

Chloride 

(CD

334 

336 

270 

194 

174 

322

144 

144 

148 

149 

149 

145 

145

162

175

492

Fluorlde 

(F)

0.2 

.4

_

_

~

Nitrate 

(NO,

1.0 

.6 

2.2 

1.2 

.7 

1.8

2.0 

1.2 

.7 

.3 

.3 

.4 

.3

0.9

0.8

2.8

A Mean discharge based on 365 days; mean discharge for 274 days of chemical analysis, 1121 cfs
QUALITY OF SURFACE WATERS, 1966

i

5'S. 

u 

05

SI

3

C 

S

&

 <

*

>-.

t-r

SI

^

£

>%

s 

c

1

i

I

F

V

>

o

h

O

0

>%

a

IT r- MI- in *h--.Mir <r -t ~ M o> crin o ma J- o- <^ * c - o <M (^ * i

J-j-i^** ir, IP irif. LP m^i^^i^ Si^Sj-in *iri^oir> *uMf\ir\*S

.£.ot-.£.o SoS^iir. ^ i^^l m^iAi^w Sli^inir ?!ini^S*

- KN -- 0.0--^!- N.O-^O' «<**«.* Ncomt~ OOIPOIO-I

1 I I 1 1 i mo*N op-oo-ir oornj-o *o-cM-m -^^*o--

2SSSS, SSSSP; zzzzi ss^ss ss;s;? ssssii

-^lOOCO K-j-,-00 p-co-*M oooooor^* r^mm^oo O- O- oo * 1- CO

. 22 . , , , ,, ___, ,K,.,,

0.0. 0>0.0-0>0> 0-0--0.0- 0-^0-0-0- O.OXXXXXX. =0=00.

1 1 1 | 1 lltll 1IIII Illll 1IOIO O O | | | O

1 1 1 1 1 Illll Illll Illll llO-'im <f * 1 | | -JflllO OOOOO OOOOO OOOOO OOOll 11(111

||f|0 OOOOO OfOlt (tf(l (Itft flllll

* -4-^-4-*-4- * *

j^«;« ^r-'coo'o ^2*2 s£2£s saass ssssss

n

p^

p^

 *

N

 4-

CNJ

r-»

*t 

<?

1

1

1

V 

A

>

 <
GILA RIVER BASIN Continued

9-5020. SALT RIVER BELOW STEWART MOUNTAIN DAM, ARIZ

Temperature (°F) of water, water year October 1965 to 

tebruary. ......

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

September .....

1

68

2

68

3

68

4

52

69

5

54

69

6

54

58

70

7

5*

71

8

5*

70

9

52

70

10

53

70

11

52

70

12

5*

70

13

54

70

14

5*

70

15

54

70

Day

16

54

70

17

53

68

18

53

68

19

51

68

20

52

68

21

5

6
GILA RIVER BASIN Continued

9-5100. VERDE RIVER BELOW BARTLETT DAM, ARIZ

(Irrigation network station)

LOCATION. Lat 33°49'03", long 111°38'08", at gaging station, 0.2 mile downstream from Bartlett Dam, 

18 miles east of Cave Creek. 

DRAINAGE AREA. 6,185 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1966.

Water temperatures: December 1950 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 410 ppm Nov. 1-26; minimum, 163 ppm Mar. 1 to Apr. 4.

Hardness: Maximum, 272 ppm Nov. 1-26; minimum, 114 ppm Mar. 1-31.

Specific conductance: Maximum daily, 693 micromhos Nov. 4; minimum daily, 265 micromhos Mar. 16, 2

EXTREMES, 1950-66. Dissolved solids: Maximum, 550 ppm Dec. 18-21, 1956; minimum, 152 ppm May 1-31, 

Hardness: Maximum, 413 ppm Dec. 18-21, 1956; minimum, 102 ppm May 1-31, 1965.

Specific conductance: Maximum daily, 958 micromhos Nov. 10, 1956; minimum daily, 225 micromhos May 

Water temperatures (1950-65): Maximum, 90°F July 18, Aug. 14, 1951; minimum, 41°F Jan. 30, 1952. 

REMARKS. No samples collected Dec. 13 to Jan. 31.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 1-31, 1965.. 

Nov. 1-26........

Sept. 1-30.......

Weighted 

average. .....

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge

(cfs)

303 

43.7 

50. 5 

214 

497 

883

360 

273 

298 

928 

1617 

1397

927 

1966 

1450 

1649 

1020 

373 

141

__

B 834

Silica 

(SiO2)

22 

24 

13 

15 

17 

16

17 

21 

16 

16 

19 

17

17 

19 

20 

17 

22 

20 

20

19

19

33

Iron 

(Fe)

Calcium 

(Ca)

46 

46 

34 

32 

30 

26

29 

45 

28 

29 

29 

32

34 

36 

47 

37 

40 

43 

46

35

38

62

Magnesium 

(Mg)

27 

38 

13 

14 

12 

12

11 

24 

12 

12 

13 

10

12 

14 

21 

14 

17 

22 

25

15

19

27

Sodium 

(Na)

36 

46 

12 

14 

14 

13

12 

30 

12 

46 

12 

47

14 

15 

27 

15 

18 

27 

28

20

24

35

Potassium 

(K)

2.2 

3.6

__

_

Bicarbonate 

(HCO,)

250 

280 

154 

152 

144 

134

132 

225 

135 

145 

143 

148

154 

170 

228 

172 

192 

226 

242

172

193

304

Carbonate

(ccg

0 

6 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

_"_

Sulfate 

(S0«)

67 

88 

27 

29 

25 

22

22 

54 

23 

24 

24 

24

27 

30 

48 

30 

35 

49 

57

32

42

57

Chloride

(Cl)

22 

29 

7.7 

8.2 

7.4 

6.4

6.4 

23 

6. 0 

54 

7.0 

55

8.2 

8.8 

17 

8.8 

11 

16 

18

15

17

26

Fluoride

(F)

0.2

.4

_

Nitrate 

(NO

0.3 

. 

.8 

1.3 

1.2 

1.2

1.0 

2.4 

1.0 

1.4 

.6 

.4

.3

0.5

0.6

0.9

A Residue at 180°C.

B Mean discharge for 365 days; mean discharge for 312 days mical analysis, 656 cfs.
GILA RIVER BASIN Continued

9-5100. VERDE RIVER BELOW BARTLETT DAM, ARIZ. Conti

Specific conductance (micromhos at 25°C), water year October 1965 

Day

5.....

21.....

23.....

31.....

Average

October

505 

515

510

627

623

62*

567

November

684 

693

675

672

672

627

December

320 

325

320

_

January February

300 

303

301

281

281

295

March

~

268

269

266

267

April

273 

273

435

435

411

385

May

478

318

318

359
QUALITY OF SURFACE WATERS, 1966

<

0

.

1*

S1

s

o

o

CN

CO 

CN

CN

<0

CN

CN

01 

CN

CN 

CN

CN

O

CN

O

CO

tx

<0

U-)

2

CO

2

-

o

o

CO

-

<0

m

^

01

CN

-

S|

CT- 1 1 III III 

-Oil III III

r- i l III III .0 1 1 III ill

r- 1 1 III III ail III ill

r- l 1 III III

 All III III

r- i l ill ill

 £> 1 1 III III

r- l l III III

(Oil III III

 a -o 1 III III

S3 ! !!! III

 a -o l ill III

S3 ! ! I 1 ! i !

53! ! ! ! 1 i i

0- r* 1 III III

0> <M 1 III III

S3 ! Ill ! ! !

CT- <NJ 1 III III

0 tM | III III

r- -o i III III

oil III III 

r- l l ill ill

oil III III 

r- 1 l III III

oil III III 

r- l 1 III ill

*-<l\ III III 

r- l l III III

 - II ill III 

r- 1 1 III III

-H 1 1 III III

r- 1 l ill ill

-ill ill III 

r- 1 l III III

rH 1 -C III III

n 1 >C III III

r- l m III ill

£ i £ ! ! ! ! 1 !

1 1 *0 III III 1 1 m ill ill

1 r- M3 III III 1 -o in III ill

II-* III III

1 r- 1 III III 1*1 III III

1 r- l III ill

1 -0 1 III III

OZQ -£,£2 <*!!,

i i i i i i

en l 1 

 0 1 1

m l 1

M3 1 1

5 ! !

 £> 1 1

! t !

i i i i i i

! ! !

I ! I

! 1 !

! i I

! ! !

i i 1

i ! !

1 M3 1

1 <0 1

! S !

1 >C 1

1 -a 1

\ S !

1 M3 1

 0 -0 1

S2 !

<M 1 1

<O 1 1

IV 1 1

S i !

<M 1 1

CO 1 1 a l l

CO 1 1

SS !

2S !

. . <u

i-ls.
Water temperatures: December 1950 tc 

EXTREMES, 1965-66. Dissolved solids:

9-5195. GILA RIVER BELOW GILLESPIE DAM, ARIZ

(Irrigation network station)

LOCATION. Lat 33°13'45", long 112°46'00", approximately 1 mile downstream from gaging station on Gi

Dam, Maricopa County, and 8 miles downstream from Hassayampa River. Gila Bend Canal diverts from 

Gillespie Dam.

DRAINAGE AREA. 49,650 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1966.

September 1966.

Maximum, 7,240 ppm July 1-18; minimum, 261 ppm Dec. 5-7. 

Hardness: Maximum, 2,220 ppm July 1-18; minimum, 120 ppm Dec. 5-7. 

Specific conductance: Maximum daily, 13,200 micromhos July 10, 11; minimum daily, 440 micromhos De

Water temperatures: Maximum, 98°F Aug. 5, 8.

EXTREMES, 1950-66. Dissolved solids aximum, 7,720 ppm Dec. 1-31, 1962; minimum, 227 ppm Aug. 2, 

Hardness: Maximum, 2,220 ppm July 1-18, 1966; minimum, 87 ppm Oct. 1-5, 1962.

Specific conductance: Maximum daily, 13,200 micromhos July 10, 11, 1966; minimum daily, 370 microm

Water temperatures: Maximum, 98°F July 8, 1958, July 22, 1959, Aug. 5, 8, 1966; minimum (1950-65), 

REMARKS. Samples from canal are believed to be representative of total flow passing Gillespie Dam, 

Enterprise Canals. No samples collected during January. No flow Oct. 1 to Dec. 9, Mar. 19 to Sep

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Dec. 9-12, 1965. .

Feb. 1-28, 1966..

Sept. 15-21......

Weighted 

average ......

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge

(cfs)

295 

566 

1560 

242 

10. 6 

589

B 597

Silica 

(SiO,)

15 

15 

18 

23 

31 

18

18

22

14

Iron 

(Fe)

Calcium 

(Ca)

70 

49 

64 

218 

285 

49

111

179

88

Magnesium 

(Mg)

16 

7.2 

16 

101 

124 

9.6

41

76

33

Sodium 

(Na)

125 

51 

168 

747 

838 

92

310

541

245

Potassium 

(K)

7.7

Bicarbonate 

(HCO,)

188 

111 

188 

194 

256 

174

169

196

134

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

 _

Sulfate 

(S04 )

127 

72 

121 

752 

900 

93

319

563

252

Chloride 

(Cl)

155 

46 

212 

1140 

1300 

86

450

819

356

Fluorlde 

(F)

0.7

Ni

tra

(NO

9

6

13 

41 

77 

2

19

39

15

A Residue at 180°C.

B Mean discharge based on 365 days mean discharge for 68 days of chemical analysis, 293 cfs
GILA RIVER BASIN Continued

9-5195. GILA RIVER BELOW GILLESPIE DAM, ARIZ. Co

Specific conductance (micromhos at 25°C), water year October 196

Day

5.....

Average

October

94 SO

 

7690

November

98*0

-

9430

December

476

445

1610

January February

5740

_

~

March

5080

April

8990

May

10800

10900

10800
COLORADO RIVER BASIN

W CJ 

1-H O

I-H w a

S 3

: i i

:JS
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERI

9-5225. GILA GRAVITY MAIN CANAL AT IMPERIAL DAM, A

LOCATION. Lat 32°52'35", long 114°27'15", temperature recorder at gaging station 3,2

Imperial Dam, Yuma County, Ariz.

RECORDS AVAILABLE. Water temperatures: January 1956 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 89°F on several days during August; 

EXTREMES, 1956-66. Water temperatures: Maximum, 89°F on several days during July an

Jan. 13-17, 1964. 

REMARKS. Temperature recorder inoperative on many days during period October to Janu

Temperature (°F) of water, water year October 1965 to S

1

73

54

_

54

50

56

56

67

77

74

78

77

84

86

85

81

79

2

73

55

_

55

53

55

53

71 

77

76

78

77

84

88

85

80

79

3

73

69

55

50

49

56

54

53

52

71

77

76

7R

77

84

88

87

82

79

4

75

68

55

49

49

56

55

52

52

71 

78

77

79

77

83

89

87

83

81

5

75

68

56

49

49

56

55

52

51

69 

80

78

80

77

83

88

87

83

82

6

75

68

56

49

49

56

56

52

51

69 

79

78

80

78

83

89

87

83

82

7

75

68

56

49

49

56

56

53

52

69 

80

78

78

77

83

89

87

84

83

8

75

67

57

51

49

55

54

56

53

70 

79

77

77

76

83

89

87

84

83

9

76

67

58

52

51

54

53

57

56

70 

77

75

76

76

84

89

88

85

83

1 0

77

66

58

52

52

53

52

58

57

70 

75

74

79

76

85

89

87

85

83

1 1

77

64

52

52

52

50

60

58

7fl 

74

73

80

77

85

88

87

84

83

12

64

52

52

50

50

61

59

70 

75

73

81

79

85

88

87

83

82

13

77

63

52

51

50

50

61

60

70 

76

74

82

80

85

88

86

81

80

14

77

62

57

52

51

50

50

62

60

70 

78

75

83

81

84

89

87

80

79

15

74

62

57

52

52

50

50

62

60

71 

78

77

84

82

84

89

88

82

79

n \

; 6

71

62

56

52

51

50

50

62

61

73 

78

76

84

82

84

89

88

83

81

17

70

62

51

51

51

50

62

61

73 

78

77

83

81

85

88

87

85

83

IS

68

63

51

51

52

51

62

60

72 

80

78

83

81

86

88

86

85

84

1 -7

67

64

51

51

54

52

62

61

68 

81

79

82

79

86

88

86

84

83

67

64

51

51

51

54

53

62

60

66 

81

79

80

78

86

87

85

82

8C
9-5255. YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT 

(Irrigation network station)

LOCATION. Lat 32°43'50", long 114°37'10", at gaging station on Yuma Main Canal below Colorado River 

siphon-drop powerplant, and 0.2 mile downstream from upper highway bridge over Colorado River at Y

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 to September 1

Water temperatures: May 1961 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 982 ppm Nov. 1-30; minimum, 676 ppm Sept. 14.

Hardness: Maximum, 414 ppm Nov. 1-30; minimum, 295 ppm Sept. 14.

Specific conductance: Maximum daily, 1,670 micromhos Nov. 26, 27, Dec. 1; minimum daily, 1,150 mic

EXTREMES, 1943-66. Dissolved solids: Maximum, 1,000 ppm Jan. 1-31, 1957; minimum, 532 ppm Jan. 1-10

Hardness: Maximum, 520 ppm July 7, 1962; minimum, 260 ppm Jan. 1-10, 1953.

Specific conductance: Maximum daily, 1,670 micromhos Nov. 26, 27, Dec. 1, 1965; minimum daily, 795 

Chemical analj

Date 

of 

collection

Oct. 1-31, 1965..

Jan. 1-21, 1966. .

Sept. 15-30. .....

Weighted

Time-weighted

Tons per day. . .

Mean 

discharge 

(cfs)

427 

221 

61.0 

147 

380 

470 

539

575 

549 

622 

540 

580 

517 

524

423

Silica 

(SiO,)

16 

14 

14 

17 

14 

14 

14

12

14 

14 

15 

21 

13 

14

14

15

17

Iron 

(Fe)

0.03 

.00

_

Calcium 

(Ca)

102 

107 

98 

92 

104 

104 

104

106 

102 

100 

97 

96 

77 

96

101

101

116

Magnesium 

(Mg)

35 

36 

32 

27 

30 

33 

32

32 

32 

32 

33 

34 

25 

34

33

32

37

ses, in parts per million, water year October 196

Sodium

(Na)

168 

176 

164 

153 

155 

150 

152

158 

152 

151 

149 

152 

115 

150

155

156

177

Potassium 

(K)

5.6

6.4

_

__

Bicarbonate 

(HCOS)

168 

186 

184 

186 

180 

178 

174

173 

170 

166 

162 

166 

144 

168

172

174

196

Carbonate

(ccg

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

_

_

Sulfate 

(SO,)

381 

385 

343 

301 

358 

360 

366

378 

366 

365 

358 

363 

269 

357

364

360

416

Chloride 

(Cl)

164 

172 

158 

147 

141 

140 

140

144 

140 

137 

137 

138 

104 

138

143

146

164

Fluoride

(F)

0.5 

.5

_

-_

Nitrate 

(NO

0.

.

.

.

.

.

.

.

.

.

.

.

.

.

1.4

1.4
QUALITY OF SURFACE WATERS, 1966
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DA

9-5255. YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT YUMA

Temperature (°F) of water, water year October 1965 to S

Month

November ..... 

December .....

January. .......

June .......... 

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

September .....

1

70 

67 

55

50 

56

68 

71 

70

83 

84 

79

2

67 

55

52 

55

69 

73 

75

82

85 

78

Day

3

68 

55

49 

52

53

70 

74 

75

81 

85 

78

4

72 

55

50 

52 

52

69

75 

75

80 

87 

79

5

76 

67 

56

48 

52 

53

67 

76 

77

81 

86 

81

6

73 

66 

56

49 

51 

53

66 

76 

78

82 

86

81

7

75 

65 

56

50 

55 

54

66

77 

76

83 

86 

82

8

73 

68 

58

51 

51 

56

67 

76 

75

83 

86 

82

9

68 

59

56

67 

74 

75

82 

86 

82

10

65 

57

50

57

68

71 

76

83

87 

83

,1

75 

67

52

59

67

76

83 

86 

83

12

75 

53

59 

68

78

83 

86 

82

13

77 

65

52

61 

68

78

82 

85 

81

14

77 

62 

56

51

60 

69

80

82 

88 

79

15

75 

62 

56

51

60 

69

81 

83 

80

16

70

57 

53

62

70

81

83 

86 

81

17

68

55 

52

62

70

81

84 

85 

81

18

69

54

51

62

80

84 

85 

83

19

67

50

62

81

85 

86 

82

20

70

51

63 

67

78

85 

85 

81

21

67

49

61 

63

78

85

85 

80
MISCELLANEOUS ANALYSES OF STREAMS IN COLORADO RIVE

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(MB)

Sodium 

(Na)

tassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(COJ

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrat

(NO

EAGLE RIVER BASIN 

9-0699. GYPSUM CREEK AT GYPSUM, COLO. (393900N 1

12 11 2 0 3

3

3 1 430 

COLORADO RIVER MAIN STEM 

9-0705. COLORADO RIVER NEAR DOTSERO, COLO. (393840N 

1370

34 1 5

2 0 87

2

9-0725. COLORADO RIVER AT GLENWOOD SPRINGS, COLO. (3933

1320

55 108 131

1 23

95 

GUNNISON RIVER BASIN 

9-1495. UNCOMPAHGRE RIVER AT DELTA, COLO. (384430N 

Aug. 5............. 144 21

228

303

92

, 

69 150

3 7

4.7 296 0 1090 17 2.4

8 

13

14

A Calculated fr determined constituents.
MISCELLANEOUS ANALYSES OF STREAMS IN COLORADO RIVER BASIN 

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decan

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Time 

(24 hour)

Water 

temperature

(°F)

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Percen

0.002 0.004 O.OOs

GILA RIVER BASIN 

9-4805. SANTA CRUZ RIVER NEAR NOGALES, ARIZ. (312040 

Sept. 7. ..........

Sept. 21. ......... 1105

79

80

428

44 405 48

9-4825. SANTA CRUZ RIVER AT TUCSON, ARIZ. (321315 11

Feb. 11.. .........

Aug. 19. ..........

Aug. 22.. .........

Sept. 13. .........

Sept. 15. ......... 1200 73

350

41 15100 1700

31

9-4860. RILLITO CREEK NEAR TUCSON, ARIZ. (321740 11

Dec. 22, 1965.....

Sept. 13. .........

1500 

1600 

2130 80

10200 

820 

2500

22800 

1910 

11900

630000 

4200 

80300

9-4865. SANTA CRUZ RIVER AT CORTARO, ARIZ. (322110 1

Aug. 22. ..........

1015 

1015 

1615

73 

73 

92

3390 

3260 

165

44800 

44500 

28400

425000 

406000 

12600

29 37 
Chemical analys

PART 10. THE GREAT BASIN

GREAT SALT LAKE BASIN 

10-0100. GREAT SALT LAKE, UTAH 

In parts per million, water year October 1

Sampling

site

(A)

1

2

3

4

5

6

7

Date 

of

collection

Oct. 6, 1965

Oct. 6, 1965

May 25, 1966

May 25, 1966

Oct. 6, 1965

Oct. 6, 1965

May 25, 1966

May 25, 1966

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

May 25, 1966

May 25, 1966

May 25, 1966

Oct. 6, 1965

Oct. 6, 1965

May 24, 1966

May 24, 1966

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

May 25, 1966

Depth 

from

surface

(feet)

0

4

0

6

0

6

0

9

0

4

0

5

10

0

5

14

0

7

0

6

0

5

17

0

5

16

0

5

22

0

Altitude

of water

above

mean sea

level

(feet)

(B)

_

4194.7

4194.7

_

4194.7

4194.7

_

_

4194.7

4194.7

4194.7

_

4194.7

4194.7

_

4194.7

4194.7

4194.7

_

4194.7

Silica

(Si02 )

3.8

4.2

~

_

_

--

4.0

3.8

3.7

3.5

3.6

_

_

~

Cal - 

cium

(Ca)

262

213

197

164

279

230

197

197

230

230

263

214

312

197

148

148

295

279

165

182

266

230

279

214

198

181

246

213

180

165

Map "1<* B

nesium

(Mg)

12700

12600

11700

11800

12500

12400

12000

12000

12500

12900

12200

12200

12200

12000

12000

12000

12200

12300

11800

11900

11200

12200

12400

11900

11700

11700

12200

12400

12300

11700

Sodium

(Na)

81400

80100

81800

82900

78100

80000

82000

78900

79500

78800

83200

82000

82000

81000

80400

80500

81800

81800

79700

80200

77300

79900

79400

80100

79700

77700

79800

80100

79000

79500

Potassium

(K)

7070

7180

7070

7070

7450

7630

6900

6970

7620

7740

6880

6970

7210

6970

6980

6970

6960

6770

6860

6860

6830

7180

7640

6950

6960

6350

7640

7640

7640

6950

Lith-

(Li)

65

65

53

53

64

64

53

53

66

66

65

65

61

52

52

52

61

63

52

52

58

63

62

52

52

52

62

62

65

52

Bicarbonate

(HC03 )

523

521

494

493

506

516

489

486

516

522

505

505

503

486

490

484

502

500

483

486

477

499

504

482

488

481

508

513

507

484

Sulfate

(S04 )

25700

25900

22900

23000

25400

25200

22500

22700

25900

26100

25100

25100

25100

23100

22900

22900

25000

24900

22700

22800

23500

24800

25300

22600

22400

22600

25400

25400

25300

23100

Chl

(

14

14

14

14

14

14

15

14

14

14

14

14

14 

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14
May 25, 1966

May 25, 1966

May 25, 1966

May 25, 1966

May 25, 1966

Oct. 6, 1965

Oct. 6, 1965

May 25, 1966

May 25, 1966

May 25, 1966

Oct. 6, 1965

Oct. 6, 1965

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 6, 1965

Oct. 6, 1965

Oct. 6, 1965

May 24, 1966

May 24, 1966

May 24, 1966

:ootnotes at e

5

10

15

20

230905

120905

1105

10

15

20

2405

10

15

20

2605

1905

17

ad of tab

4194.7

4194.7

4194.7

4194.7

4194.7_

4194.7

4194.7

4194.7

__

4194.7

4194.7

4194.7__

4194.7

4194.7

4194.7

4194.7

4194.7

4194.7

___

__

4194.7

4194.7

4194.7

le.

__

__~

__

3.4

3.5

3.6

4.0

3.4

3.6

3.4

3.4

2.9

____

148

182

148

165

164

262

197

181

132

165

230

197

165

205

214

231

230

263

230

295

230

196

185

172

175

204

173

264

214

214

200

132

165

11800

11500

11800

11600

11500

12500

12500

11700

11600

12200

12400

12700

11500

11800

11900

11800

12200

12200

12600

12500

12200

11500

11700

11800

12200

12000

11400

11400

12200

12400

11200

12000

12000

79900

80100

80000

80100

79800

80000

80100

80300

77400

78000

81000

79400

80700

80700

80500

76000

82100

78600

81900

78600

81900

78300

81500

82400

82200

82100

82400

77600

80000

80300

78500

82300

81600

7040

7050

6960

7040

7050

7640

7640

7280

7120

6940

7650

7630

6730

6740

6870

7010

6990

7370

6940

7640

7110

6270

6770

6670

6650

6720

6420

6910

7410

7550

6200

6610

7310

52

52

52

50

50

65

63

50

50

50

63

63

53

53

54

61

61

62

63

65

63

51

53

53

53

54

51

57

63

63

50

52

52

484

483

484

483

475

512

509

486

487

494

518

512

487

487

489

495

496

508

506

514

513

471

473

476

486

488

456

495

498

508

471

479

490

23100

22500

22500

24900

27800

25700

25600

22800

22700

22900

26000

26100

22800

23300

22900

24600

25400

25200

25000

25400

25700

21700

22900

22900

22700

22800

37300

23600

25200

25700

21400

22900

22800

1

14

1

14

14

1

1

1

1

1

1

1

14

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1
GREAT SALT LAKE BASIN Continued

10-0100. GREAT SALT LAKE, UTAH Continued

Chemical analyses, in parts per million, water year October 1965 to 

Sampling

site

(A)

12

13

14

15

16

Date

of

collection

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 7, 1965

Oct. 7, 1965

Oct. 7, 1965

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

Oct. , 1965

Oct. , 1965

Oct. , 1965

Oct. , 1965

Oct. , 1965

Oct. 4, 1965

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 4, 1965

Oct. 4, 1965

May 24, 1966

May 24, 1966

Oct. 1, 1965

Oct. 1, 1965

Oct. 1, 1965

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

Depth

surface

(feet)

0

5

11

0

5

14

0

5

23

0

5

15

20

0

5

10

15

20

25

0

5

10

15

20

26

0

3

0

7

0

5

21

0

5

15

20

27

Altitude

of water 

surface

above

mean sea

level

(feet)

(B)

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4193.8

4193.8

4195.4

4195.4

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

Silica

(Si02 )

11

4.4

4^

--

__

_

5.0

4.0

_

2.8

4.8

4.9

4.9

4.9

3.9

2.7

__

_

_

_

_

Cal-

(Ca)

62

257

239

221

210

193

213

309

265

196

229

210

191

260

274

291

291

332

214

186

176

176

239

175

172

293

275

204

176

276

308

232

211

176

193

185

149

Magnesium

(Mg)

805

7830

7730

7330

6990

7000

1750

7570

10600

6280

6600

6890

10500

7190

7740

7520

7500

10300

11300

6910

7080

6810

6710

10000

11200

7100

7750

6820

6750

7510

7650

10800

6740

6710

7320

9770

11200

Sodium

(Na)

7330

71700

71000

57800

57400

58800

18100

68900

81000

52200

53600

55500

72200

65000

66200

69300

72200

78200

82100

56900

57000

57000

60300

73300

81300

65100

68100

61200

61100

65300

68300

78700

61100

61100

61100

70600

78300

Posium

(K)

616

4860

4730

4000

3910

3990

1200

4600

4440

3500

3850

3990

5550

4170

4750

4210

4420

6390

6480

3830

4140

3980

3630

5800

6660

4190

4170

3570

3560

4180

4390

6700

3780

3780

3780

5560

6330

Lithium

(Li)

0

34

36

32

34

35

6.9

39

55

28

32

34

49

38

36

41

39

54

58

33

33

33

34

47

52

38

40

33

33

40

40

54

33

33

33

46

49

Bicarbonate

(HC03 )

C330

392

390

386

385

388

368

394

450

374

382

386

449

396

392

399

410

446

473

387

389

387

385

441

460

389

394

388

377

393

389

435

375

380

391

432

456

Sulfate

(S0 4 )

1430

17600

17400

14400

14400

15200

3920

17400

23300

12900

14300

14900

21400

16500

17000

17500

17300

22700

24800

14600

14900

14800

14600

20100

24000

16400

17200

14600

14600

17100

17400

23200

14800

14700

14900

20200

22800

Chl

(

1

12

12

10

10

10

3

12

14

9

9

10

13

11

11

12

12

14

14

10

10

10

10

13

14

11

11

10

10

11

11

14

10

10

10

13

14
16a

17

17 a

18

19

19a

20

See i

Oct. 1, 1965

Oct. 1, 1965

Oct. 1, 1965

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

May 24, 1966

Oct. 4, 1965

Oct. 4, 1965

May 23, 1966

May 23, 1966

Oct. 4, 1965

Oct. 4, 1965

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

May 23, 1966

May 23, 1966

May 23, 1966 

ootnotes at er

05

1105

10

15

2205

10

15

20

23-06070805

1005

15

20

2305

2005

21

id of tab

4193.8

4193.8

4193.8

4193.8

4193.8

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4193.8

4193.8

4195.4

4195.4

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

Le.

_~_

4.2

4.2

2.4_-

4.2

4.1_~_~_

276

309

274

308

205

273

239

166

140

158

175

158

137

133

93

275

239

169

158

290

256

158

193

165

168

151

182

153

200

274

308

234

182

196

134

7560

7460

7670

7760

7650

7560

7520

10100

6960

7390

6890

7100

8140

9280

784

7750

7730

6900

6870

7490

7560

7060

7110

7040

7210

6490

6520

8330

8580

7320

7490

9390

6700

6580

8650

66900

69100

69600

70000

70900

71000

70800

80600

59000

59000

56400

56400

69500

83300

6690

69400

71500

54500

54400

70000

71800

54400

60300

60300

60300

60200

60300

70400

82700

69400

70500

77600

58400

58400

80500

4380

4440

4430

4430

4590

4710

4670

5840

3700

3700

3900

3750

4720

5730

581

4580

4740

3840

3840

4330

4330

4040

3710

3710

3710

3700

3710

4650

4640

4350

4340

5510

3520

3520

4580

37

38

38

38

39

38

39

53

33

33

33

33

39

44

2.7

38

39

27

30

38

38

30

33

33

33

33

33

44

42

38

38

47

31

31

43

393

390

394

400

387

399

397

429

388

387

385

385

406

415

272

394

402

386

387

394

392

384

386

383

385

384

392

402

384

399

399

414

388

385

401

16800

17100

17600

17500

17000

17600

17300

21800

14900

14900

14700

14800

18100

20900

1700

16600

17400

14600

14900

17600

17500

15000

15000

15100

15200

15200

15200

18800

20000

17100

17300

20700

15100

15200

20300

11

12

12

12

12

12

12

14

10

10

10

10

11

13

1

12

12

10

10

12

12

10

10

10

10

10

10

12

14

12

12

13

10

10

13
GREAT SALT LAKE BASIN Continued

10-0100. GREAT SALT LAKE, UTAH Continued

Chemical analyses, in parts per million, water year October 1965 to 

Sampling

site

(A)

21

21a

22

23

24

Date

of

collection

Oct. 7, 1965

Oct. 7, 1965

Oct. 7, 1965

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

May 23, 1966

May 23, 1966

May 23, 1966

Oct. 4, 1965

Oct. 4, 1965

Oct. 4, 1965

May 23 , 1966

May 23, 1966

May 23, 1966

Oct. 7, 1965

Oct. 7, 1965

Oct. 7, 1965

Oct. 7, 1965

Oct. 7, 1965

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

May 23, 1966

De th

from

surface

(feet)

0

5

14

0

5

17

20

25

0

5

18

0

5

17

0

5

16

0

5

13

0

5

10

15

22

0

5

10

15

20

23

Altitude

of water

above

mean sea

level

(feet)

(B)

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4193.8

4193.8

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

4195.4

4195.4

4195.4

Silica

(Si02 )

_

_

_

_

_

4.2

4.1

3.3

_

Cal 

cium

(Ca)

326

326

273

182

147

168

175

183

325

273

380

192

164

150

324

324

307

175

175

210

342

274

324

256

265

193

175

175

175

175

119

Mag 

sium

(MB)

7830

7710

7510

6680

7130

6820

6830

8370

7750

7910

7950

6670

6690

6800

7770

7770

7730

6730

6820

6350

7670

7560

7780

7460

7680

6490

6580

6590

6590

6480

8300

Sodium

(Na)

67800

68700

69300

59300

59300

59300

59300

83000

68700

69200

86100

59300

59300

59200

69400

70700

70200

59300

59400

60700

68900

71700

70100

71500

86900

60900

60700

60700

60700

60700

72400

Potassium

(K)

4260

4250

4240

3420

3430

3420

3420

4410

4250

4310

4760

3390

3390

3390

4230

4230

4370

3400

3400

3910

4240

4660

4230

4650

4910

3930

3910

3920

3920

3910

4820

Li thdJ.)

38

38

38

33

32

32

33

43

38

38

41

35

35

35

38

38

38

35

35

33

40

39

40

39

43

33

33

33

33

33

42

carbonate

( HC0 3 )

394

397

399

384

388

382

384

392

393

409

371

387

384

387

391

393

398

386

385

388

389

392

395

395

382

380

386

388

390

383

394

Sulfate

(S04 )

17000

17000

17300

14800

15000

14900

15200

20100

17200

17500

19900

15000

15000

15200

17500

17500

17600

15200

15100

15000

17400

17100

17500

17200

19600

14800

15100

15000

15100

15300

18700

C
25 Oct. 1, 1965

Oct. 1, 1965

Oct. 1, 1965

May 23, 1966

May 23, 1966

May 23, 1966

0

5

12

0

5

12

4193.8

4193.8

4193.8

4195.4

4195.4

4195.4

_

325

324

324

193

158

193

7590

7780

7570

6680

6600

6470

69000

70100

70400

60700

60700

60700

4240

4200

4200

4040

4040

4040

36

40

40

33

33

33

391

390

395

390

386

383

17300

17600

17400

15200

15200

15100

12

12

12

10

10

10

A Sampling sites 1-11 are north of 

B Datum determined at Little Valle 

C Includes 14 parts per million of

the causeway. See figure 2.

i Harbor for sites 1-11 and at Salt Lake County Boat Harbor for si

carbonate (C03 ) .
QUALITY OF SURFACE WATERS, 1966

% V.vr'N

\ .<Cub Island 

i O Q 

Gunnison I si and 8 7

STRONGKHOB MOUNTAIN'-^

«Tn } *9 Causeway'10 . ,\\ ) I7a. Lakes ide^ - r-\__/<^"'~N

\ *I5 *I4 V-7^

I2>

Fremont Island 1**!

r" i

/ OiBird Island

V / 6:r:

EXPLANATION

 15

Sampling site 

ber designates site

Approximate location of 

lakeshore. November 1965

>>. ' -V

SALT 

LAKE 

CITY

i_i_i_i

Base from aerial photographic mosaic 

by Intermountain Aerial Surveys.

Figure 2. Map of Great Salt Lake showing locations of sites where data were obtained 

during 1966 water year. Numbers correspond to numbers shown on table of chemical 

analyses for Great Salt Lake (10-O100). (Antelope, Stansbury, Fremont, Bird, and 

Carrington Islands are now surrounded by mudflats, not by water. All have existed 

as true islands during historical time, however, when lake stage was higher than at 

present.)
BEAR RIVER BASIN

10-0395. BEAR RIVER AT BORDER, WYO.

LOCATION. Lat 42°11' , long HI'03 1 , at gaging station, 0.2 mile west of Wyoming-Idaho State line, 0.5 

from Thomas Fork.

DRAINAGE AREA.--2,490 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: October 1965 to September 1966.

Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 472 ppm July 1-20; n

Hardness: Maximum, 295 ppm July 1-20; minimum, 198 ppm Apr. 1-5.

Specific conductance: Maximum daily, 883 micromhos July 21; minimum daily, 316 micromhos Nov. 1.

268 ppm Oct. 19-31.

Water temperatures: Maximum, 72°F July 26; minimum, freezing point 

REMARKS. Daily samples for chemical analysis composited by discharge.

Chemical analyses, in parts per

nany days during November to 

vater year October 196

Date 

of 

collection

Oct. 1-18, 1965...

Jan. 1-15, 1966...

July 21-31. .......

Mean 

discharge 

(eta)

430 

492 

410 

314 

384

334 

317 

306 

227 

230

223 

228 

229 

551 

1166

2358 

1159 

1157 

541 

265

256 

210 

146

Silica 

(S102 )

6.0 

6.1 

6.2 

7.7 

8.5

8.1 

8.1 

9.9 

10 

10

9.2 

9.7 

11 

14 

16

9.5 

9.3 

9.2 

8.5 

6.2

9.2 

10 

9.6

Iron 

(Fe)

Calcium 

(Ca)

53 

50 

53 

58 

53

62 

62 

58 

58 

61

50 

62 

54 

54

52

38 

51 

51 

59 

50

57 

50 

50

Magnesium 

(Mg)

19 

18 

22 

26 

39

26 

22 

21 

27 

24

24 

24 

26 

17 

19

25 

31 

20 

20 

20

32 

42 

40

Sodium

(Na)

16 

15 

18 

24 

29

26 

20 

18 

23 

22

14 

24 

20 

18 

28

36 

34 

16 

19 

19

43 

54 

51

Potassium 

(K)

2.2 

2.3 

2.4 

2.6 

3.1

2.6 

2.0 

2.0 

2.1 

2.3

2.3 

3.0 

2.0 

4.2 

8.0

1.3 

1.0 

1.7 

1.5 

2.3

3.5 

3.0 

2.6

Bicarbonate 

(HCOS)

226 

218 

223 

233 

273

262 

256 

236 

255 

250

218 

229 

229 

207 

232

204 

256 

220 

232 

203

281 

288 

256

Carbonate

(ccg

0 

0 

8 

9 

4

0 

0 

0 

0

0 

12 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

18

Sulfate 

(S04 )

42 

29 

42 

59 

68

57 

43 

50 

73 

57

40 

59 

59 

44 

42

63 

66 

36 

51 

61

85 

85 

82

Chloride 

(Cl)

18 

14 

21 

27 

33

27 

19 

18 

23 

22

21

22 

23 

17 

23

30 

34 

15 

18 

19

39 

53 

53

Fluoride 

(F)

1.0 

.3 

.4 

.5 

.5

.3 

.3 

.3 

.3 

.3

.3 

.2 

.2 

.5 

.4

.3 

.3 

.2 

.3 

.3

.4 

.4 

.4

Nitrate 

(NO,

0.0 

.0 

.4 

.3 

.3

.0 

.4 

.4 

.7 

1.0

.5 

.2 

.6 

3.4 

2.1

.8 

.4 

.0 

.0 

.0

.0 

.8 

1.0
BEAR RIVER BASIN Continued

10-0395. BEAR RIVER AT BORDER, WYO. Continue

Chemical analyses, in parts per millio wate year October 1965 to 

Date 

of 

collection

Aug. 1-31, 1966...

Weighted average

Time-weighted

g _,

Tons per day.. . .

Mean 

discharge 

(els)

104 

107

-

430

"

Silica 

(SiO,)

11

9.2

9.4

9.2

11

Iron 

(Fe)

Calcium 

(Ca)

57 

60

53

55

61

Magnesium 

(Mg)

26

21

25

25

29

Sodium 

(Na)

35

32

26

27

30

Potassium 

(K)

1.4 

1.8

2.4

2.3

2.8

Bicarbonate 

(HCOj)

233 

217

236

239

274

Carbonate

(ccg

0 

0

-

-

Sulfate 

(S04 )

84 

87

55

62

64

Chloride 

(Cl)

38 

27

25

27

29

Fluoride 

(P)

0.3 

.2

0.3

0.3

0.4

Nitrate 

(NO,

0.1 

.1

0.5

0.4

0.6

Temperature ("F) of water, water year October 1965 to Se

Month

CXrober .......

November ..... 

December .....

January........

February. ...... 

March .........

April.......... 

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

June ..........

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

September .....

 1

1 | 2 | 3

44

44 

34

32

43

60

59

58

40 

37

32

45

58 

61

65

59

44

41

35

32

42

60

57

66

 i |

4

48

40 

35

34

43

58

59

68

b

49

41 

32

33

38

57

60

64

TTT

48 55

41 

32

34

41

53

61

65

39 

32

33

47

54

63

63

r "~ ^ " ' 

8 9

4H

42 

33

32

49

59

63

69

54

41 

33

34

49

57

62

10 ' 1 1 | 12

55 48

42 

34

32

47

60

66

39

34

33

46

58

71

59|63 I 61

47

38 

34

V

46

58

68

62

13 14 15

46 U&

39

34

34

48

60

71

60

39 

34

45

40 

33

33 34

49 52

Day

16

44

40 

33

34

49

64 64 |65

62 61 62

52 , 61)60

Day

16

44

40

33

33

34

49

53

65

62

64

60

1 ~ 18

44

40

45

40

32 32

33 33

35 32

50 46

55

59

56

61

61 61

68 65

60 60

19 20

44 43

39

32

32

34

40

56

65

65

64

60

38

34

32

34

36

58

67

70

61

63

21

46

36

33

32

33

44

54

65

70

63

59
BEAR RIVER BASIN Continued

10-0395. BEAR RIVER AT BORDER, WYO. --Cont

Specific conductance (micromhos at 25°C), water year Octobe

Day

2...-.

4.....

6... ..

7.....

14.....

15.....

16.....

17.....

19.....

20.....

23..... 

24...,.

26..... 

27.....

29.....

Average

October

456

467

468 

467

473

477 

479

4P1

438 

453

452

426 

429

43C 

438

458

November

447

453

510 

517

512

523 

519

549

558 

584

577

635 

657

597 

597

635

December

730

648

585

583

522

516 

525

563

574

568

590

513

535

526 

515

507

January

509

497

495

500

512

509 

514

528

546

609 

618

615 

623

621

586

February

557

542

524

549 

550

560

550 

553

562

550

551 

560

565 

559

March

547

563

556 

558

550

475

483

468

418

501 

549

563

592

426

508

April

511

564

706

677 

654

A31

614 

620

585 

576

570

616

Ma

5?

50

42

42

51

52

48

50

50

50

50

48
BEAR RIVER BASIN--Continued

10-0905. BEAR RIVER NEAR PRESTON, IDAHO

LOCATION. Lat 42°10'00", long 111°51'00", at gaging station 600 feet downstreai

north of Preston, Franklin County, and 5.5 miles upstream from Battle Creek. 

DRAINAGE AREA. 4,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1965 to September 1966.

from headgates of We

Chemical analyses, in parts per million, water year October 

Date 

of 

collection

Oct. 3, 1965. ....

Feb. 7, 1966. ....

May 11. ..........

Aug. 10. .........

Mean 

discharge 

(cfs)

1600 

1690 

1530 

1460

1510 

756 

629 

854 

775

Silica 

(SiO,)

9.9 

13 

13 

13

15 

8.4 

8.7 

12 

13

Iron 

(Fe)

0. 05

Calcium 

(Ca)

65 

57 

58 

54

57 

46 

59 

42 

48

Magnesium 

(Mg)

36 

44 

49 

52

37 

15 

34 

52 

60

Sodium 

(Na)

33 

36 

38 

39

26 

9.9 

38 

48 

51

Potassium 

(K)

4.6 

4. 8 

5. 0 

5. 0

5.3 

2.2 

6.8 

5.8 

6.7

Blcarbonate 

(HCOS)

335 

346 

370 

374

317 

209 

324 

339 

382

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

6

Sulfate 

(SO.)

54 

61 

67 

68

54 

15 

53 

72 

85

Chloride 

(Cl)

34 

38 

40 

38

30 

9.2 

40 

48 

54

Fluoride

(F)

0.3 

. 3 

. 2 

. 2

. 3 

.2 

. 4 

. 4 

. 4

Nitrate 

(NO

0.8 

1.2 

.9 

1. 

2.9 

1. 

.3 

.4 

1.

A Residue at 180°C.
WEBER RIVER BASIN 

10-1365. WEBER RIVER AT GATEWAY, UTAH

LOCATION (revised). Lat 41 0 08'15", long 111 0 49'55", at gaging station 400 feet downstream from tailrac

Pacific Railroad bridge, 1,200 feet downstream from Strawberry Creek, and 3,200 feet east of section 

DRAINAGE AREA. 1,610 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: May 1958 to September 1966.

Water temperatures: August 1958 to September 1959. 

REMARKS. Flow regulated by Rockport, Echo, and East Canyon Reservoirs.

Chemical analyses parts pe mill! water year October 1965 

Date 

of 

collection

Oct. 4, 1965. ....

Jan. 18, 1966. . . .

Sept. 12. ........

Weighted average A. .......

Mean 

discharge 

(cfs)

413 

326 

483 

510

129 

1090 

489 

389 

303

417

Silica 

(SiO,)

12

8.4 

8.6

10

Iron 

(Fe)

Calcium 

(Ca)

61

47 

64

58

58

Magnesium 

(Mg)

15

12 

18

21

16

Sodium 

(Na)

14 

18 

13 

16

22 

12 

14 

12

15

14

Potassium 

(K)

2.2

3.9 

2.5

2. 6

Bicarbonate 

(HCO,)

244 

249 

236 

237

266 

187 

247 

260 

256

230

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

29 

38 

33 

30

40 

22 

28 

27 

27

28

Chloride 

(Cl)

18 

19 

16 

16

28 

13 

16 

16 

20

16

Fluoride 

(F)

0. 2

.2 

.2

.3

Nitrate 

(NO,)

1.7

1.3 

1.0

1.7

A Includes esti ssing periods; includes 100 percent of runoff for water yea
JORDAN RIVER BASIN

10-1670. JORDAN RIVER AT NARROWS, NEAR LEHI , U

Chemical analyses, in parts per millic ater year October 1

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 14, 1966. . . .

Sept. 15. ........

Mean 

discharge 

(eta)

23 

22 

21 

46 

239

21 

637 

705 

756 

688 

398

Silica 

(SiO,)

18 

22 

24 

12 

15

35 

13 

8.9 

13 

21 

20

Iron 

(Fe)

Calcium 

(Ca)

71 

108 

138 

90 

80

110 

67 

63 

59 

57 

58

Magnesium

(Mg)

62 

79 

78 

71 

57

83 

54 

57 

61 

65 

62

Sodium

(Na)

191 

215 

235 

172 

150

242 

127 

158 

165 

176 

196

Potassium 

(K)

Bicarbonate 

(HCO,)

241 

305 

332 

280 

277

310 

250 

256 

238 

236 

212

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO t}

319 

391 

466 

342 

269

454 

223 

254 

273 

279 

305

Chloride 

(Cl)

225 

286 

295 

215 

180

292 

161 

185 

195 

218 

235

Fluoride 

(F)

Nitrat

(NO

0.

1 .

2.

2.

1.

1 

2 
JORDAN RIVER BASIN Continued 

10-1672. JORDAN RIVER AT 9400 SOUTH, NEAR SOUTH JORDAN

LOCATION. Lat 40°34'50", long 111°55'07", at gaging station approximately 300 feet downstream from div

12 miles downstream from Jordan Narrows, and 1.4 miles northeast of South Jordan, Salt Lake County. 

DRAINAGE AREA. 3,130 square miles, approximately, including 255 square miles in closed basin in Cedar 

RECORDS AVAILABLE. Chemical analyses: August 1965 to September 1966.

Che il analyses, in parts per million, August 1965 to Sept

Date 

of 

collection

Aug. 12, 1965. . . .

Oct. 18. ........ 

Nov. 16. .........

Jan. 14, 1966. . . .

Mar. 21. ......... 

May 4. .^ ........

Aug. 3...........

Sept. 15. ........

Mean 

discharge 

(cfs)

11 

40 

38 

26 

29 

38 

316

42 

2.2 

13 

12 

27

27

Silica 

(SiO2)

33

11

31 

10 

32 

23 

19

46 

28 

23 

24 

26

28

Iron 

(Fe)

Calcium 

(Ca)

192 

95 

207 

142 

226 

181 

114

180 

178 

172 

186 

186

184

Magnesium 

(Mg)

88 

63 

66 

91 

89 

86 

63

96 

92 

75 

86 

79

85

Sodium

(Na)

268 

182 

284 

276 

260 

264 

176

251 

239 

284 

270 

286

269

Potassium 

(K)

Bicarbonate 

(HCO,)

347 

141 

354 

224 

354 

327 

299

334 

320 

298 

354 

360

332

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

Sulfate 

(SO,)

554 

366 

498 

520 

565 

529 

331

526 

475 

549 

542 

527

532

Chloride 

(Cl)

395 

282 

421 

428 

435 

395 

238

400 

412 

382 

390 

400

400

Fluoride

(F)

Nitrate 

(NO,)

4. 9 

.0 

3. 7 

1. 0 

5. 4 

2. 6 

2. 3

7.0 

6. 2 

3. 6 

2. 6 

5. 4

6. 9
JORDAN RIVER BASIN Continued

10-1673. JORDAN RIVER AT 5800 SOUTH, KEAR MURRAY, 

LOCATION. Lat 40°38'43", long 111°55'17", at gaging station at highway bridge on 5800 South Street, a

DRAINAGE AREA. 3,240 square miles, approximately, including 255 square miles in closed basin in Cedar 

RECORDS AVAILABLE. Chemical analyses: August 1965 to September 1966.

Chemical analyses, in parts per million, August 1965 to S

Date 

of 

collection

Aug. 12, 1965. . . .

Nov. 16. .........

Jan. 3, 1966. ....

July 7. ..........

Aug. 3. .......... 

Sept. 1. .........

Mean 

discharge 

(cfs)

131 

190 

141 

125 

135 

125

124 

121 

125 

142 

141 

113

87 

129 

117 

132 

146 

160

Silica 

(Si02)

26 

19 

17 

13

25

13 

30

23

12 

25 

17 

26

Iron 

(Fe)

Calcium 

(Ca)

176 

71 

135 

155

188

166 

180

164

148 

164 

156 

164

Magnesium 

(Mg)

75 

43 

83 

77

80

79 

84

81

75 

78 

83 

78

Sodium 

(Na)

219 

229 

224 

230

234

236 

232

208

256 

239 

244 

226

Potassium 

(K)

Bicarbonate 

(HCOS)

314 

46 

273 

319

344

328 

310

298

288 

320 

328 

316

Carbonate

(ccg

0 

16 

7 

0

0

0 

0

0

0 

0 

0 

0

Sulfate 

(S04 )

463 

379 

418 

423

492

475 

509

456

488 

479 

476 

463

Chloride 

(Cl)

340 

280 

351 

356

365

345 

360

332

348 

342 

348 

335

Fluoride

(F)

Nitrate 

(NO,)

8. 2 

. 1 

1.7 

1. 4

.3

2. 2 

9. 5

11

1.3 

7.1 

5.4 

10
JORDAN RIVER BASIN Continued

10-1673. JORDAN RIVER AT 5800 SOUTH, NEAR MURRAY, 

Specifi onductance (mici it 25°C), water year Octobe

Day

2.. ...

7 .....

11.....

28.....

31.....

Average

October

190C

1 97 C

197C

197C

2000

2000

1980

November

2000

2270

2200

2400

2290

December

2480

2 52 0

2670

2550

2350

2270

2450

January

2400

2210

2260

2180

2200

2230

February

2180

2100

2000

70

1950

March

1770

1900

1800

2200

2130

2040

April

1900

2?50

2200

2020

2010

Ma

20>

206

201

192

?13

20S
JORDAN RIVER BASIN Continued

10-1675. LITTLE COTTONWOOD CREEK NEAR SALT LAKE CIT

LOCATION. Lat 40°31'15", long 111 0 44'28", at Utah Power and Light Company powerplant, 2 miles upstre

southeast of Salt Lake City, Salt Lake County. 

RECORDS AVAILABLE. Chemical analyses: October 1964 to September 1966.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 14, 1966. . . . 

Feb. 21. .........

Sept. 14. ........

Mean 

discharge 

(cfs)

28 

22 

19 

17 

13

52 

80 

160 

60 

31 

16

Silica 

(S10,)

6.0 

6. 1 

6. 1 

3.0 

4. 6

6. 8 

5. 8 

4. 0 

5.4 

5.4 

6. 2

Iron 

(Fe)

Calcium 

(Ca)

28 

30 

30 

32 

32

28 

22 

14 

19 

25 

23

Magnesium 

(Mg)

6. 3 

6. 8

7. 1 

7. 1 

8. 0

3.9 

4. 6 

3. 6 

4.1 

5.1 

6.1

Sodium

(Na)

2. 9 

3. 9 

7. 5 

3. 8 

2.1

11 

4.2 

2.8 

3.0 

2.5 

6.9

Potassium 

(K)

Bicarbonate 

(HCOj)

75 

79 

82 

72 

80

66 

60 

46 

56 

68 

68

Carbonate 

(CO,)

0 

0 

0 

6 

3

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

33 

36 

43 

36 

36

32 

23 

15 

19 

27 

32

Chloride 

(Cl)

4. 5 

5. 3 

6. 6 

7.0 

6.7

14 

6. 5 

2. 5 

3.3 

3.9 

5.6

Fluoride

(F)

Nitrat

(NO

0.

.

. 

. 

. 

. 

1. 

. 

. 

. 

. 
JORDAN RIVER BASIN Continued

10-1685. BIG COTTONWOOD CREEK NEAR SALT LAKE CITY, 

LOCATION. Lat 40°37'34", long 111°44'28", at bridge on Utah Highway 152 at Maxfield's Lodge, 2.5

12 miles southeast of Salt Lake City, Salt Lake County. 

DRAINAGE AREA. 50.0 square miles, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1964 to September 1966.

lie

Cheit al analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 15, 1965. . . .

Jan. 14, 1966. . . .

Sept. 14. ........

Mean 

discharge 

(eta)

63 

45 

35 

28 

26 

26

76 

94 

152 

54 

33 

34

Silica 

(Si02 )

6.4 

6. 6 

6. 3 

7. 1 

7. 7

6. 7 

5.8 

6. 6 

7. 5 

8. 0 

7. 1

Iron

(Fe)

Calcium 

(Ca)

41 

45 

46 

48 

50

33 

27 

27 

38 

48 

32

Magnesium 

(Mg)

14 

15 

14 

16

17

8. 8 

9.0 

8.3 

12 

17 

23

Sodium

(Na)

3. 0 

3.1 

9.8 

6. 0 

.4

9. 9 

2.9 

3.1 

3.4 

2.9 

5.7

Potassium 

(K)

Blcarbonate 

(HC03)

149 

159 

161 

168 

169

110 

95 

100 

142 

178 

160

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

36 

40 

48 

46 

40

29 

21 

19 

30 

39 

45

Chloride

(Cl)

4. 5 

5. 0 

10 

8.1 

11

13 

7.2 

4.0 

4.7 

5.4 

7.1

Fluoride

(F)

Nitrate

(NO,

0. 

.9 

. 

. 

. 

.9 

.7 

. 

.1 

. 

. 
JORDAN RIVER BASIN Continued 

10-1700. MILL CREEK NEAR SALT LAKE CITY, UTA

LOCATION. Lat 40°41'20", long 111°46'55", at gaging station 1,000 feet upstream from bridge at mouth 

southeast of Salt Lake City, Salt Lake County. 

DRAINAGE AREA. 21.7 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1964 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 14, 1966. . . .

Sept. 14. ........

Mean 

discharge

(cfs)

9. 8 

10 

9. 5 

9. 5

8. 4

12 

15 

14 

11 

10 

9. 6

Silica

(sicg

8. 2 

7. 6 

8. 2 

8. 6 

8. 3

8. 5 

7.8 

9.7 

8.3 

8.3 

7.5

Iron 

(Fe)

Calcium 

(Ca)

85 

85 

86 

87 

87

81 

78 

77 

75 

81 

63

Magnesium

(Mg)

26 

27 

28 

26 

29

23 

25 

23 

29 

26 

31

Sodium

(Na)

6.0 

5.3 

8.7 

9. 9 

3. 2

12 

3.9 

7. 6 

6.9 

1.8 

9.7

Potassium 

(K)

Bicarbonate 

(HCO,)

238 

237 

238 

227 

234

230 

226 

228 

226 

222 

2O6

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04)

123 

126 

135 

14O 

133

118 

103 

101 

120 

115 

119

Chloride 

(Cl)

7. 2 

7 6 

9. 5 

8. 6 

8. 9

9.0 

9.0 

8. 0 

7.8 

7.3 

7 9

Fluoride

(F)

Nitrate 

(NO,

0.2 

. 

. 

. 

. 

.4 

.2 

.2 

.3 

.

1 
JORDAN RIVER BASIN Continued 

10-1710. JORDAN RIVER AT SALT LAKE CITY, UTAH

LOCATION. Lat 40°43'34", long 111°55'31", at highway bridge on Twenty-first South Street in Salt Lake 

approximaty 200 feet upstream from diversion structure at head of Surplus Canal, and, approximately, 2 

DRAINAGE AREA. 3,420 square miles, including 255 square miles in closed basin in Cedar Valley. 

RECORDS AVAILABLE. Chemical analyses: November 1963 to September 1966. 

REMARKS. Discharge shown is combined flow of Jordan River and Surplus Canal.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 18, 1965....

Jan. 14, 1966. . . .

July 8. ..........

Mean 

discharge 

(cfs)

310 

240 

274 

272 

476

280 

288 

368 

247 

417

Silica 

(S102)

21 

22 

20 

.3

20

21 

14 

1. 5 

10 

21

Iron 

(Fe)

Calcium 

(Ca)

152 

152 

146 

102 

126

148 

95 

110 

128 

124

Magnesium 

(Mg)

53 

63 

62 

71 

66

73 

48 

75

71

66

Sodium

(Na)

198 

188 

187 

208 

165

207 

124 

197 

238 

199

Potassium 

(K)

Bicarbonate 

(HCOS)

296 

292 

292 

144 

281

285 

212 

186 

264 

266

Carbonate 

(COJ

0 

0 

0 

31 

0

0 

0 

47 

12 

0

Sulfate 

(S0 4 )

381 

389 

375 

399 

351

433 

253 

384 

428 

373

Chloride 

(Cl)

275 

278 

275 

290 

240

300 

183 

268 

305 

280

Fluoride

(F)

Nitrate 

(NO,)

ll 

15 

11 

2. 8 

11

15 

14 

4. 6 

18 

15

A Residue at ISCTC.
JORDAN RIVER BASIN Continued 

10-1716. PARLEYS CREEK AT SUICIDE ROCK, NEAR SALT LAKE C

LOCATION. Lat 40°42'35", long 111°47'48", at gaging station at mouth of canyon about 0.1 mile upstrea

City, Salt Lake County. 

DRAINAGE AREA. 50.7 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1964 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 14, 1966. . . .

Sept. 14. ........

Mean 

discharge 

(eta)

2.9 

3.1 

3. 1 

2. 9 

2. 9

12 

11 

12 

3. 7 

2. 4 

3. 1

Silica 

(S103)

11

15 

10 

12 

12

16 

8. 2 

11 

11 

12 

12

Iron 

(Fe)

Calcium 

(Ca)

58 

59 

99 

97 

87

87 

84 

71 

78 

71 

82

Magnesium 

(Mg)

42 

41 

22 

24 

28

21 

20 

18 

26 

28 

29

Sodium 

(Na)

25 

25 

27 

27 

32

16 

18 

23 

26 

25 

27

Potassium 

(K)

Bicarbonate 

(HCO,)

275 

276 

289 

287 

260

257 

255 

240 

242 

212 

260

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

96 

95 

100 

102 

107

60 

63 

51 

93

105 

104

Chloride 

(Cl)

31 

32 

39 

40 

52

48 

40 

36 

43 

44 

41

Fluorlde 

(F)

Nitrate 

(NO,)

1. 4 

. 7 

1. 6 

2. 6 

. 9

1. 4 

.7 

. 4 

.4 

2. 3 

2. 5
JORDAN RIVER BASIN Continued

10-1720. EMIGRATION CREEK NEAR SALT LAKE CITY, 

LOCATION. Lat 40°45'00", long 111°48'45", at gaging station at

Salt Lake County. 

DRAINAGE AREA. 18 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1964 to September 1966

boundary of Hogle Garden Zoo ne

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 18, 1965. . . . 

Nov. 10. .........

Jan. 14, 1966. . . . 

Feb. 21, .........

Sept. 15. ........

Mean 

discharge

(cfs)

2.7 

2.0 

2.7 

3.8 

2.0

2.0 

11 

7. 6 

3.8 

2.7 

2.7

Silica 

(SI02)

12

15 

12 

13

12 

15 

11 

14 

11 

13

Iron 

(Fe)

Calcium 

(Ca)

51

72 

100 

97

106 

84 

84 

80 

83 

96

Magnesium 

(Mg)

26

38 

24 

24

26 

14 

20 

29 

29 

33

Sodium 

(Na)

79

25 

42 

80

26 

22 

18 

26 

28 

26

Potassium 

(K)

Bicarbonate 

(HCOS)

300

307 

308 

298

309 

277 

278 

270 

234 

280

Carbonate 

(CO,)

0

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

111

95 

100 

105

89 

53 

62 

101 

135 

146

Chloride 

(Cl)

32

28 

58 

116

57 

23 

28 

36 

38 

34

Fluoride 

(F)

Ni

trat

(NO

0

1

2
JORDAN RIVER BASIN Continued

10-1722. RED BUTTE CREEK AT FORT DOUGLAS, NEAR SALT LA

(Hydrologic bench-mark station)

LOCATION. Lat 40 0 46'48", long 111°48'19", at gaging station 0.3 mile upstream :

Lake County, and 5 miles northeast of Salt Lake City. 

DRAINAGE AREA. 7.25 square miles. 

RECORDS AVAILABLE. Chemical analyses: April 1964 to September 1966.

Water temperatures: April 1964 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 70°F July 18, 21, 25, 26; minimum, fr 

EXTREMES, 1964-66. Water temperatures: Maximum, 70°F July 18, 21, 25, 26, 1966; minim

pillway of Red 

ing point 

freezing 

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 11, 1966. . . .

Sect 15. .........

Mean 

discharge 

(cfs)

2. 1 

2. 5 

2. 2 

1.9 

1.6

4.7 

2.8 

1.6 

1.3 

1.3

Silica 

(S102 )

12 

11 

9. 5 

11 

10

9.2 

11 

12 

9.9 

12

Iron 

(Fe)

Calcium 

(Ca)

64 

71 

96 

88 

93

81 

79 

83 

79 

89

Magnesium 

(Mg)

29 

39 

26 

27 

27

22 

27 

27 

30 

33

Sodium 

(Na)

54 

17 

14 

12 

12

9.7 

13 

14 

15 

12

Potassium 

(K)

Blcarbonate 

(HCOS)

319 

295 

302 

280 

286

271 

278 

286 

284 

3 OO

Carbonate 

(CO,)

0 

4 

0 

0 

0

0 

0 

0 

0 

O

Sulfate 

(S0«)

106 

101 

109 

105 

113

72 

85 

93 

99 

112

Chloride 

(Cl)

16 

15 

13 

12

14

12 

14 

14 

14 

15

Fluorlde 

(F)

0.5

N

tra

(N

0
JORDAN RIVER BASIN Continued

10-1722. RED BUTTE CREEK AT FORT DOUGLAS, NEAR SALT LAKE C

Temperature (°F) of water, water year October 1965 to 

Month

1 1 2 3456 789 10 1 1

October 1 """I

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

47 47

46

47

46

36

36

January j Maximum .... 34

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum .... 

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

33

32

32

36

36

49

45

53

45

55

50

60

58

67

62

59

55

46

46

45

36

48 52 52 52 52 52 52 52 1 52

47 47 52 51 50 51 50 51 , 51

46 46 46, 46 46 46 45 45

45 45 45 1 46 , 45 45 44 44

44

44

36 37 37 37 37 37 38 38 38

36 36 36 36 36 36 36 37 37 38

35

33

34

32

36

34

48

45

56

45

55

51

62

58

65

60

55

53

35

33

34

34

34

32

46

42

57

52

56

52

63

58

64

62

54

50

35 36 36 36 36 35 35 35

34 35 ( 35 35 35 35 35 35

34 35 35 35 35 34 33

34 34 35

33

no

46

38

58

K.A

53

50

65

59

64

59

56

51

34

33

46

37

58

54

53

47

67

60

64

61

57

53

35 34 33 33

33

33

35 38 39 40 40 40

34

47

40

59

54

53

50

62

55

66

60

55

54

35

47

42

59

55

53

51

62

56

66

60

57

53

38 39 40 39

49

42

58

54

55

49

64

58

66

61

58

54

49 48

46

54

52

55

51

63

59

66

61

58

46

52

50

55

51

66

62

66

61

57

54 55

46

12 13 14 15

52 52 52 52

50 50 50 50

44 44 44 44

44 43 43 44

38 38,38 35

38 38 35 34

35 35 35 35

35 35 35 34

33 34 34 34

33 33 33 33

42 43 43 43

40 42 42 39

46

43 |43

50|49

49

57

50

67

66

66

62

57

55

47

57

48

64

60

66

61

58

53

49 50 1 51

43 44

50

49

53

50

65

58

65

56

59

55

50

50

55

50

63

58

65

59

57

56

46

52

49

55

51

65

58

66

60

56

50

Day

16

50

49

44

42

34

33

34

33

34

33

42

36

53

49

52

52

55

53

63

61

66

61

58

54

17 18 19

49 49 46

49,46 46

44 44 43

42 43 43

33 33 33

33 33 33

33 '33 33

33 33 33

33 34 35

33 33 34

36 37 38

34 34 37

52 47

46

56

46

56

52

66

60

67

62

58

55

40

20 

46 

45 

43 

43 

33 

32 

33

32 

36

35

39 

37 

43

40 35 |35

50

44

56

52

70

53

45

58

53

67

58 64

66

65

66

63

60 61

58 56

54

49

57

53

69

65

65

61

62

56
JORDAN RIVER BASIN Continued

10-1724. CITY CREEK ABOVE WASATCH DRIVE, NEAR SALT LAK

LOCATION. Lat 40°47'33", long 111°52'34", at gaging station, approximately, 0. 2 mile upstream from Wa

Salt Lake County.

DRAINAGE AREA. 18.5 square miles. 

RECORDS AVAILABLE. Chemical analyses: Novemher 1963 to September 1966.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 14, 1966. . . .

Apr. 4...........

Sept. 16. ........

Mean 

discharge 

(cfs)

11 

11 

9. 5 

9. 0 

7. 7

18 

24 

18 

13 

11 

7. 8

Silica 

(SiOa )

11 

10

11 

11

12

11 

7. 2 

13 

12 

13 

13

Iron 

(Fe)

Calcium 

(Ca)

72 

62 

67 

60 

67

63 

58 

64 

61 

49 

58

Magnesium 

(Mg)

20 

20 

20 

20 

21

17 

14 

19 

20 

20 

9.7

Sodium 

(Na)

17 

14 

17 

17 

13

23 

5. 2 

17 

18 

19 

35

Potassium 

(K)

Bicarbonate 

(HCO,)

299 

268 

279 

259 

277

268 

229 

274 

270 

222 

254

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

5

o

Sulfate 

(SO.)

17 

18 

22

17 

18

23 

11 

16 

17 

17 

16

Chloride 

(Cl)

25 

23 

24 

27 

27

24 

10 

23 

24 

26 

25

Fluoride

(F)

N

tra

(N

0
JORDAN RIVER BASIN Continued

10-1725.8. JORDAN RIVER AT CUDAHY LANE, NEAR SALT LAKE 

LOCATION. Lat 40°50'31", long 111°57'01", at highway bridge on Cudahy Lane, approximately 0 2 mile up

Lake City, Salt Lake County.

DRAINAGE AREA. 3,490 square miles, approximately, including 255 square miles in closed basin in Cedar 

RECORDS AVAILABLE. Chemical analyses: October 1963 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 15, 1965. . . .

Jan. 17, 1966.. . .

Aug. 3...........

Sept. 14. ........

Mean 

discharge 

(da)

170 

152 

177 

143 

200

150 

148 

166 

154 

171 

187

Silica 

(S102)

19

19 

. 3 

17

21 

14 

20 

18 

20 

22

Iron 

(Fe)

Calcium 

(Ca)

128

135 

96 

120

112 

101 

122 

104 

108 

128

Magnesium 

(Mg)

58

59 

73 

60

57 

53 

73 

68 

73 

68

Sodium 

(Na)

176

185 

190 

173

125 

136 

219 

168 

198 

209

Potassium 

(K)

Bicarbonate 

(HCO,)

286

272 

122 

286

244 

226 

284 

260 

274 

250

Carbonate

(ccg

0

0 

32 

0

0 

0 

0 

0 

0 

0

Sulfate 

(»«)

328

351 

371 

335

265 

268 

395 

320 

367 

404

Chloride 

(Cl)

255

268 

285 

235

212 

201 

298 

245 

270 

295

Fluoride

(F)

Nitrate 

(NOJ

9. 6

16 

13 

12

15 

21 

19 

17 

18 

17

A Residue at 180°C.
JORDAN RIVER BASIN Continued

LOCATION.--Lat 40°49'00", long 112°O6'04", at gaging sta'

Magna, Salt Lake County. 

RECORDS A\AILABLE. Chemical analyses: October 1963 to Septembe

10-1726.3. GOGGIN DRAIN NEAR MAGNA, UTAH

m, approximately, 3 miles downstream from Bai

Chemical analyses rts per million, water year October 1965 

Date 

of 

collection

Oct. 18, 1965. . . .

Nov. 16. .........

Dec. 13. .........

Jan. 11, 1966. . . .

Feb. 23. .........

Aug. 2...... .....

Sept. 19. ........

Mean 

discharge 

(cfs)

18

8. 7

15

9. 9

9. 5

1. 2

Silica 

(Si02 )

6. 6

1.8

14

1.5

9. 2

4.7

LJLL

Iron 

(Fe)

Calcium 

(Ca)

123

131

136

112

120

120

Magnesium 

(Mg)

121

159

134

175

219

209

Sodium 

(Na)

992

1510

1100

1710

2510

2220

tassium 

09

Bicarbonate 

(HCOS)

268

365

328

238

327

222

418

bonate

(ccg

21

40

0

43

7

0

Sulfate 

(SO,)

622

793

443

965

1170

1200

Chloride 

(Cl)

1460

2230

1800

2450

3650

3120

Fluoride 

(F)

Nitrate 

(NO,)

1. 2

1.6

6.3

1.0

2.3

. 5
JORDAN RIVER BASIN Continued 

10-1726.5. KENNECOTT DRAIN NEAR MAGNA, UTAH

LOCATION. Lat 40°45'28", long 112°10'04", at gaging station, approximately 400 feet downstream from brid

Salt Lake County. 

RECORDS AVAILABLE. Chemical analyses: October 1963 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 18, 1965....

Jan. 11, 1966. . . .

Sept. 19. ........

Mean 

discharge 

(cfs)

71 

67 

121 

95 

106

42 

62 

95 

99

77 

127

Silica 

(SiO,)

46 

65 

39 

55 

37

63 

42 

22 

29 

41 

35

Iron 

(Fe)

Calcium 

(Ca)

225 

306 

217 

681 

265

211 

248 

212 

220 

236 

152

Magnesium 

(Mg)

116 

144 

139 

116

88

105 

199 

85 

90 

100 

95

Sodium 

(Na)

859 

1150 

1570 

910 

841

1030 

1790 

620 

729 

824 

485

Potassium 

(K)

Bicarbonate 

(HCO,)

186 

51 

200 

108 

105

(B) 

152 

214 

178 

142 

204

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

611 

772 

823 

1730 

644

489 

881 

616 

652 

696 

539

Chloride 

(Cl)

1500 

2130 

2580 

1600 

1480

1630 

3030 

1000 

1190 

1380 

775

Fluoride 

(F)

Nitrate 

(NO,)

2. 9 

15 

7. 6

7. 5 

8. 6

13 

14 

. 6 

2. 8 

5. 7 

4. 0

A Analysis include 0.14 ppm copper (Cu) , 0.20 ppm zinc (Zn) , 

B Acidity as (H2 S04 ) 243 ppm.
SEVIER LAKE BASIN 

10-1915. SEVIER RIVER BELOW PIUTE DAM, NEAR MARYSVA

(Irrigation network station)

LOCATION. Lat 38°19'55", long 112°11'15", at gaging station, 0.8 mile downstr<

DRAINAGE AREA. 2,440 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1958 to September 1959, February 1961 to September 1966

from Piute Dam, and 

1 to September 1966

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 21, 1965. . . .

Jan. 12, 1966. . . .

Mar. 7. ..........

Sept. 21. ........

Weighted average A. .......

Mean 

discharge 

(cfs)

160 

96 

3. 2 

4. 1 

3. 8

172 

214 

272 

262 

415 

72

147

Silica 

(Si02)

22

22

7.9

Iron

(Fe)

Calcium 

(Ca)

48 

48

47 

48

Magnesium 

(Mg)

23 

22

24 

24

Sodium 

(Na)

34 

34 

33 

35 

37

25 

38 

26 

29 

27 

29

30

Potassium 

(K)

4.3

4.9 

4.2

Bicarbonate 

(HCO,)

275 

284 

302 

304 

282

274 

266 

264 

272 

276 

256

270

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

3 

0 

0 

0 

0

Sulfate 

(SO.)

41 

37 

29 

36 

33

30 

26 

28 

34 

35 

37

32

Chloride 

(Cl)

15 

16 

13 

13 

18

10 

10 

10 

14 

14 

17

12

Fluoride 

(F)

0. 5

.4 

.4

__

Nitrate 

(NO

0.7

.7 

.1

__

A Includes estimated data for missing periods; represents 100 percent of runoff for water y
SEVIER LAKE BASIN--Cont inue-i

10-2240. SEVIER RIVER NEAR LYNNDYL, UTAH 

(Irrigation network station)

LOCATION. Lat 39°39", long 112°24", at bridge on county road, 1.5 miles upstream from gaging station, 

DRAINAGE AREA. 6,270 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1966.

Water temperatures: March 1951 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 1,680 ppm Aug. 1-15; minimum, 759 ppm Feb. 19-26.

Hardness: Maximum, 600 ppm Apr. 1-30; minimum, 362 ppm Feb. 19-26.

Specific conductance: Maximum daily, 2,780 micromhos Oct. 9, 10; minimum daily, 1,220 micromhos Feb

Water temperatures: Maximum, 80°F Aug. 1-3, 6; minimum, 33°F on many days during winter months. 

EXTREMES, 1951-66. Dissolved solids: Maximum, 5,980 ppm Dec. 25-27, 1962; minimum, 275 ppm Feb. 3-11

Hardness: Maximum, 1,970 ppm Dec. 29, 30, 1962; minimum, 188 ppm Feb. 3-11, 1962.

Specific conductance: Maximum daily, 8,3OO micromhos Dec. 27, 1962; minimum daily, 431 micromhos Fe

Water temperatures: Maximum, 85°F July 21-23, 1956, Aug. 9, 10, 1963; minimum, 33°F on many days du

REMARKS. Additional samples were collected to further define the quality of water at this station. D

deep well discharging to the river between the sampling point and the gaging station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-7, 1965., .

Nov. 1-10........

Dec. 1-31. ....... 

Jan. 1-31, 1966. .

Feb. 19-26. ......

Sept. 1-30. .....

Weighted average

Time-weighted 

average

Tons per day. . .

Mean 

discharge 

(cfs)

19. 4 

67. 4 

37. 5 

36.4 

83.9 

43. 3

40. 3 

35. 3 

61. 8 

64. 5 

53. 6 

33. 5

371 

486 

370 

317 

252 

149 

24. 8

-

172

~

Silica 

(S10,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

231 

321 

185 

143 

211 

181

187 

194 

122 

185 

176 

276

296 

280 

301 

325 

405 

204 

221

286

243

133

Potassium 

(K)

Blear - 

bonate 

(HCO,)

274 

306 

262 

276 

257 

290

304 

306 

229 

295 

277 

383

388 

354 

349 

330 

308 

264 

276

338

309

157

Carbonate

(COJ

0

o

0 

0 

10 

0

0 

0 

0 

0 

0 

5

0 

0 

0 

0 

4 

0 

0

_

"

Sulfate 

(SO,)

323 

399 

262 

191 

289 

233

254 

270 

178 

272 

240 

352

402 

357 

378 

401 

480 

249 

260

365

313

170

Chloride 

(Cl)

345 

415 

288 

225 

302 

278

285 

280 

180 

275 

267 

350

360 

360 

390 

416 

470 

275 

280

367

326

171

Fluorlde

(F)

Nitrate 

(NO,)
SEVIER LAKE BASIN Continued

10-2240. SEVIER RIVER NEAR LYNNDYL, UTAH Contin

ilys of additional samples

Date 

of 

collection

Feb. 28, 1966....

Sept . 4 ..........

Mean 

discharge 

(cfs)

38.0 

57.9 

299 

28.2

Silica 

(S1O2)

13 

14 

16 

15

Iron

(Fe)

Calcium 

(Ca)

72 

72 

74 

62

Magnesium 

(Mg)

75 

54 

93 

102

Sodium

(Na)

178 

126 

310 

363

Potassium 

(K)

4.7 

7.4 

6.6 

6.7

Bicarbonate 

(HCOJ

298 

240 

359 

308

Carbonate 

(CO,)

0 

0 

0 

0

Sulfate 

(S0«)

249 

202 

381 

450

Chloride 

(CD

282 

200 

382 

460

Fluoride

(F)

0.6 

.5 

.6 

.5

Nitrate 

(NO,

1.0 

1.5 

2.3 

.6

Temperature (°F) of water, water year October 1965 to Se

October .......

December .....

February. ...... 

March .........

April ..........

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

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

September .....

1

62

36

34 

36

58

2

62

36

34 

33

58

78

3

64

38

34 

33

58

76

4

64

38

34 

35

58

76

5

66

40

33 

39

74

6

66

40

33 

40

72

7

66

41

34 

42

72

8

68

41

34 

47

72

9

68

42

34 

50

72

10

68

44

34

50

72

11

66

44

34 

52

72

12

64

42

34 

54

72

13

62

42

34 

55

72

14

60

42

34 

56

72

15

52

42

33 

56

72

Day

16

54

40

35 

56

56

72

17

54

40

36 

56

58

72

18

54

40

36 

56

58

72

19

56

37

36 

56

58

64

72

20

56

35

38 

56

58

66

72

21

57

33

40 

56

60

66

70
SEVIER LAKE BASIN Continued

10-2240. SEVIER RIVER NEAR LYNNDYL, UTAH Cont

Specific conductance (micromhos at 25°C), water year October 19

Day

1.....

3.....

8..... 

9.....

11..... 

12.....

14.....

16.....

18.....

20.....

21..... 

22.....

23.....

23.....

30.....

Average

October

20*0

2010

2760

2780

21*0 

2120

2110

2390

2400

2360

1760 

1730

17*0

1690

1700

2060

November

1690

1700

1300 

1300

1880 

1920

19?0

1920

1930

1920

1920 

1920

1930

1670

16*0

1700

December

1600

1600

17*0 

1630

1620 

L630

16*0

1620

16*0

1650

1620 

1640

1640

1580

1580

1630

January

1560

1560

1560 

1560

1560 

15RO

1820

1860

1860

1870

I860 

1860

1B10

1760

1840

1710

February

1580

1560

1860 

1R50

1860 

1810

1840

18*0

1590

1240

1260 

1240

1230

1750

-

1600

March

30

40

1320 

1680

1680 

1690

1680

1710

1690

1690

1680 

1710

2240

2240

1800

April

2260

2750

2?50 

2220

2?20 

2220

2220

7190

2270

2250

2270 

2260

2250

2260

2?40

May

220

225

?10

224

225

225

224

272

222

224

229

229

22*

?35

225
BIG SMOKY AND IONE VALLEYS

10-2493. SOUTH TWIN RIVER NEAR ROUND MOUNTA

(Hydrologic bench-mark station)

LOCATION. Lat 38°53'00", long 117°14'35", temperature recorder at gaging station on 

3 miles west of State Highway 8A, and 15 miles northwest of Round Mountain. Nye C

DRAINAGE AREA. 20 square miles, approximately.

RECORDS AVAILABLE. Water temperatures: April to September 1966. 

EXTREMES. Water temperatures: Maximum, 63°F July 25, 29.

Temperature (°F) of water. April to Sentemb

Month

April

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

_

_

47

43

58

51

61

SB

56

51

Day

2

_

_

49

43

56

49

59

57

57

50

3

_

_

49

43

56

47

62

56

58

51

4

_

_

49

44

57

48

62

56

59

52

c

51

46

48

43

58

50

62

55

58

53

6

5?

45

49

46

58

50

62

54

58

54

7

51

44

48

46

58

50

62

54

59

53

8

50

45

4R

45

55

50

62

54

58

53

9

47

45

49

46

56

52

62

54

57

53

10

48

45

53

46

58

51

62

55

57

53

II

45

41

52

45

57

50

62

55

57

51

12

48

40

53

46

57

49

62

55

55

50

13

50

42

54

47

57

49

62

55

52

48

14

50

43

54

49

58

49

62

55

52

47

15

50

43

52

50

58

49

62

55

53

47

16

51

44

53

49

59

49

60

56

55

48

17

51

43

54

49

60

51

59

56

57

50

18

51

43

56

49

60

51

59

56

57

53

19

50

44

55

50

60

51

60

55

53

52

20

51

44

55

50

62

53

58

53

56

52
ANTELOPE VALLEY 

10-2635. BIG ROCK CREEK NEAR VALYERMO, CALIF.

LOCATION. Lat 34°25'15", long 117°50'19", temperature recorder at gaging station 0.1 mile 

miles southeast of Valyermo, Los Angeles County. 

DRAINAGE AREA. 23.0 square miles.

RECORDS AVAILABLE. Water temperatures: January 1962 to September 1966. 

EXTREMES,1962-65. Water temperatures: Maximum, 65°F June 20, 21, 1962, Aug. 14-17, 1963, 

Dec. 18, 1964.

REMARKS. No record Nov. 22 to Dec. 22; temperature probe buried in silt. Clock stopped M

Probe exposed to air July 13 to Sept. 30.

Temperature (°F) of water, water year October 1965 to Septem

Month

October 

Maximum .... 

Minimum ....

November

Minimum .... 

December

Minimum .... 

January 

Maximum ....

Maximum .... 

Minimum .... 

March 

Maximum ....

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum ....

Maximum .... 

Minimum ....

August 

Maximum .... 

Minimum .... 

.September 

Maximum .... 

Minimum ....

]

59 

54

58 

55

49

52 

48

51

56 

50

60 

52

62 

52

66 

55

2 3

60 

55

58 

55

60 

56

58 

54

456 7 8 9 10

60 60 60 60 60 60 60

58 57 57 56 57 56 56 

54 54 54 53 54 53 53

1 1

60

56

52

Day

12 13 14 15 16 17 18 19 20 21 22 

60 60 59 57 56 57 58 58 59 58 58 

56 55 . 

53 54 .

49 50

52

47

49

56 

50

60 

52

62 

51

66

53

52 

48

50

56

51

62

53

62

52

66 

55

51 51 52 52 53 52 52

53 53 51 48 51 51 48

50 50 51 53 53 53 53

55 56'57 57 57 57 56 

50 50 50 50 50 50 51

61 j 61 62 59 58 , 59 59 

53 ' 53 53 53 52 52 51

63 i 62 ! 62 63 60 62 65 

52 53 54 53 53 ' 54 54

65 66 67 66 67 67 66 

55 55 55 56 57 57 56

51

51

57 

51

60 

52

65 

54

66

55

5 56 56 53 54 53 52 

4 54 55 52 53 52 51

50 50 50 51 49 49

52 51 51 50 50 49

56 57

50 50

60 62 

52 52

65 66 

54 55

50 50 50

50 50 50

7 58 58 57 

>0 50 50 52

>1 61 61 62 

2 52 52 52

36 66 67 65 

;5 55 ; 56 54

54 55 55 

50 50 50

65 62 66 

54 55 55

49 51 

50 '50 

54 54 

58 58 

50 50 

65 65 

55 55 

-1- "

1
QUALITY OF SURFACE WATERS, 1966

is «+> ! OT3 C I 

M C 3 ;

] O. D, 0,0 

i 0) 0) 0) W

I W to t 

>J <£> <

j Jtol

W W W 

O B S 2 S w 

O a! BST 

O H H W X fi
CARSON RIVER BASIN Continued

10-3120.2. CARSON RIVER NEAR SILVER SPRINGS, N

(Irrigation network station)

LOCATION. Lat 39°17'35", long 119 0 15'05", on U.S. Highway 95 alternate, at Weeks Bridge, 4.5 miles d

approximately 8.5 miles south of Silver Springs, Lyon County.

DRAINAGE AREA. 1,450 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1962 to September 1966.

Water temperatures: October 1962 to September 1966 

EXTREMES, 1965-66. Dissolved solids: Maximum, 460 ppm Sept. 14-30; minimum, 121 ppm May 1-25.

Hardness: Maximum, 211 ppm Sept. 14-30; minimum, 56 ppm Apr. 1-13, May 1-25.

Specific conductance: Maximum daily, 677 micromhos Sept. 12, 25; minimum daily, 144 micromhos May 

Water temperatures: Maximum, 68°F Aug. 2, 16; minimum, freezing point on several days during Decem

EXTREMES, 1962-66. Dissolved solids: Maximum, 468 ppm Aug. 1-31, 1963; minimum, 83 ppm June 16-22, 

Hardness: Maximum, 224 ppm Aug. 1-31, 1963; minimum, 38 ppm June 16-22, 1963.

Specific conductance: Maximum daily, 685 micromhos Aug. 17, 1963; minimum daily, 102 micromhos Jun

Water temperatures: Maximum, 70°F Aug. 2, 24, 1965; minimum, freezing point on many days during wi

REMARKS. No flow Aug. 15 to Sept. 13. Records of discharge given for Carson River near Fort Churchi

sampling point.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-31, 1965. .

Jan. 1-31, 1966. .

June 1-5. ........

Mean 

discharge 

(cts)

118 

293 

313 

200 

239 

276

228 

231 

362 

448 

333

452 

589 

481 

737 

431 

294

Silica

(SiO2)

29 

27

20

Iron 

(Fe)

0.01 

.05

10

Calcium 

(Ca)

39 

31 

28 

37 

30 

31

32 

32 

26 

22 

25

20 

15 

21 

16 

19 

27

Magnesium 

(Mg)

8.1 

6.4 

7. 5 

8. 1 

6. 3 

7. 2

6.1 

6.3 

5.1 

6.3 

2.6

3. 9 

4. 5 

4. 5 

3. 9 

6. 0 

6.4

Sodium 

(Na)

38 

30 

26 

34 

27 

30

30 

30 

21 

16 

20

15 

13 

18 

13 

18 

25

Potassium 

(K)

3.1 

3. 1

2.2 

2.9 

2.5 

3.0

Bicarbonate 

(HCOS)

150 

130 

117 

137 

117 

123

116 

114 

95 

76 

89

76 

68 

90 

72 

69 

110

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

2 

1 

1 

0

0 

0 

0 

0 

2 

0

Sulfate 

(SOJ

46 

59

23

Chloride 

(Cl)

6.8 

8. 2

2. 8

Fluorlde 

(F)

0.3 

.4

.2

Nitrate 

(NO,

1.4 

1. 

2.2
CARSON RIVER BASIN Continued

10-3120.2. CARSON RIVER NEAR SILVER SPRINGS, NEV. Co

Chemical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

June 6-14, 1966. .

Sept. 14-30. .....

Weighted average

Time-weighted 

average ......

Tons per day. . .

Mean 

discharge 

(cfs)

156 

86. 5 

15. 9 

. 1 

. 1 

. 1

275

--

Silica 

(Si02)

35

--

-

Iron 

(Fe)

.00

--

~

Calcium

(Ca)

37 

44 

50 

56 

58 

60

25

35

17

Magnesium 

(Mg)

8.6 

10 

11 

14 

14 

15

5.6

7.9

5.6

Sodium 

(Na)

36 

44 

50 

56 

59 

62

23

33

23

Potassium 

(K)

5. 6 

5.6

Bicarbonate 

(HCOJ

146 

180 

188 

201 

202 

200

101

132

70

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

138

~

"

Chloride 

(Cl)

12

Fluoride

(F)

0.5

Nitrate 

(NO,

1. 2

__

Month

October .......

November ..... 

December .....

January.. ......

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

June .......... 

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

August ........ 

September .....

]

52

34 

34

37

53 

55 

57

63

55

 

2

55

35 

34

38

56 

56 

56

6?

54

Day

3

54

35 

34

39

52 

60 

56

55

4

54

39 

35

36

50 

60 

56

55

5

53

39 

36

40

48

60

57

6

55

42 

37

43

53 

63

58

7

55

37 

38

45

53 

60

56

8

55

35

37 

35 

47

56

60

54

9

35

36 

35 

45

55

60

54

10

36

35 

34 

52

54 

58

54

n

37

34 

35 

48

52 

57

62 

67 

53

12

36

34 

34

50

54 

55

63 

62

50

13

37

35 

34 

49

50 

57

61 

63 

48

14

35

34 

34 

48

52

63 

67 

47

15

32

35 

34 

42

53 

59

61 

65 

47

16

32

35 

34 

42

55 

59 

65

62 

68 

49

17

32

36 

34 

36

57 

59 

65

62 

67 

54

18

32

35

40 

44

57 

66

63 

67 

57

19

32

34 

40 

45

60 

66

64 

65 

54

20

32

33 

38

44

50 

61 

63

65 

62 

56

21

33

33 

37 

45

52

63 

61

66 

59 

57
Day

CARSON RIVER BASIN Continued

10-3120.2. CARSON RIVER NEAR SILVER SPRINGS, N

_____Specific conductance (micromhos at 25°C) of watei^water year 

October Nmemhcr Dcc-jmbc-r Jji

1.....

2.....

3.....

4.....

5.....

6.....

7.....

8.....

9.....

10.....

11.....

12.....

13.....

14.....

15.....

16.....

17.....

18.....

19.....

20.....

21.....

22.....

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Average

482

452

431

440

438

434

428

415

403

403

423

434

435

439

444

449

445

428

411

400

399

407

402

392

392

389

404

403

407

401

450

394

390

389

391

386

383

383

404

381

383

388

374

372

372

361

352

318

355

360

323

314

321

314

321

354

372

346

350

345

34U

308

314

304

309

314

309

308

310

310

311

321

__

426

421

421

419

420

378

339

322

320

319

318

317

311

313

381

384

376

383

334

335

336

335

364

364

360

362

365

359

361

345

344

344

345

379

379

380

373

371

357

327

328

333

319

330

329

322

352

r}

4

6

3

4

5

6

5

>4

4

0

>2

5

9

1

»5

(4

(4

 5

9

9

SO

i"3

37

>7

28

33

9

30

29

22

52

Ti.-bru.ir}

316

322

323

328

332

328

324

336

345

345

358

358

360

359

345

343

342

338

339

343

342

341

341

336

339

342

347

339

March

343

350

345

338

347

346

350

335

341

324

270

265

265

280

221

220

225

223

249

255

260

268

278

279

273

258

252

239

217

201

280

Apnl

192

186

178

162

173

182

180

169

158

172

161

173

187

216

252

272

285

254

208

184

221

243

253

235

235

211

188

176

202

205

M.i

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

1
HUMBOLDT RIVER BASIN

10-3210. HUMBOLDT RIVER AT CARLIN, NEV.

LOCATION.--Lat 40°42'34", long 116°06'00", at Carlin, Elko County, a miles downstream from gaj

feet upstream from Carlin sewage disposal plant.

DRAINAGE AREA. 4,310 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses; October 196C to September 1966

Water temperatures; October 1965 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 406 ppm Mar. 18-31; minimum, 268 ppm May 6-31.

Hardness: Maximum, 196 ppm Jan. 17-31; minimum, 142 ppm Apr. 11-17.

Specific conductance: Maximum daily, 653 micromhos Mar. 21, 22; minimum daily, 362 m

Water temperatures; Maximum, 82 C F July 23, Aug. 3; minimum, freezing point on many d 

REMARKS. Records of daily discharge data given for Humboldt River near Carlin, Nev. N 

during periods of heavy local runoff.

stat

'omhos May 10.

i during wint

.ppreciable i

Chemi lyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-31, 1965.. 

Nov. 1-30........

Jan. 1-16, 1966. .

Mar. 18-31. ......

Apr. 18-30. ...... 

May 1-5. .........

Aug. 1-31. ....... 

Sept. 1-30.......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge 

(eta)

97. 9 

141 

128 

122 

97.0

108 

384 

701 

612 

541

355 

167 

260 

7. 0 

3. B 

4.1

169

Silica 

(S103)

40 

31

34 

34

Iron 

(Fe)

0.00 

. 00

.01 

.01

Calcium 

(Ca)

40 

50 

56 

50 

58

52 

46 

51 

43 

40

43 

46 

41 

47 

40 

41

47

47

21

Magnesium 

(Mg)

12 

11 

13 

11 

13

11 

11 

16 

12 

10

12 

13 

10 

16 

17 

17

12

13

5.6

Sodium

(Na)

46 

42 

47 

45 

48

42 

46 

61 

40 

34

39 

42 

33 

52 

51 

48

45

45

20

Potassium 

(K)

6. 4 

6. 1

8.0 

8. 5 

6.3 

5.4

5.9 

6.8 

5.4 

9. 6 

9. 7 

8.9

Bicarbonate 

(HCO,)

238 

252 

290 

259 

276

263 

245 

286 

231 

210

235 

253 

221 

275 

256 

254

250

256

Carbonate 

(CO,)

4 

4 

0 

0 

9

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO.)

37 

34

37 

48

Chloride 

(Cl)

16 

16

14 

21

Fluorlde

(F)

0. 5 

. 6

.5 

. 6

Nitrate 

(NO,)

1.0 

. 9

1. 8 

1.4
Specific

HUMBOLDT RIVER BASIN Continued

10-3210. HUMBOLDT RIVER AT CARLIN, NEV. Co

conductance (micromhos at 25°C), water year Octobe

Day

1.....

2.....

3.....

4.....

5.....

6.....

7.....

8.....

9.....

10.....

11.....

12.....

13.....

14.....

15.....

16.....

17.....

18.....

19.....

20.....

21.....

22.....

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Average

October

524

521

530

533

537

532

525

484

511

533

525

542

539

523

531

528

538

537

533

532

530

529

534

535

526

529

518

513

523

523

526

November

522

516

516

525

508

517

515

513

509

513

507

508

514

508

510

505

502

506

511

510

514

511

489

489

486

503

503

519

537

509

December

553

589

591

587

593

593

579

578

544

531

531

525

517

515

514

544

573

590

613

614

614

607

607

586

586

573

563

564

532

534

539

567

Januar,

544

560

560

537

537

520

518

513

509

508

499

506

507

512

507

517

553

553

581

580

584

581

572

571

557

549

547

551

546

521

520

539

Fi.-hru.ir,

521

511

513

503

512

502

497

498

513

512

525

527

527

530

533

517

513

497

500

499

493

496

493

490

491

497

500

507

March

495

495

500

510

5U6

489

494

487

474

468

487

490

508

511

490

494

492

533

616

618

653

653

645

644

644

632

614

572

522

501

544

April

509

508

490

472

460

452

443

435

425

437

411

408

417

414

414

414

433

434

446

459

452

478

481

481

471

495

511

509

 -

455

M.

5

5

5

4

4

4

4

3

3

3

3

4

4

4
HUMBOLDT RIVER BASIN Continued 

10-3210. HUMBOLDT RIVER AT CARLIN, NEV. Contin

October .......

November ..... 

December .....

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

June ..........

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

September .....

1

63

33

35

33

38

60

6A

67

75

67

2

63

33 

33

31

38

59

ft9

69

SO

69

3

62

33

33

33

37

57

<S7

67

fl?

71

4

60

33 

34

34

38

58

67

IS7

79

72

5

61

33 

34

33

40

58

67

66

79

72

6

63

33 

34

33

4?

58

71

65

80

72

7

63

33 

34

33

45

59

7]

79

71

8

63

33 

34

33

46

59

62

71

79

72

9

63

33

34

33

45

60

6?

70

80

70

10

63

36

34

3?

4?

56

64

71

77

69

11

63

34 

34

32

42

5?

56

71

76

67

,2

61

35 

34

32

4]

52

58

73

78

65

13

60

34 

34

31

4]

55

64

77

79

62

14

59

34 

33

33

41

55

64

77

79

58

15

50

35 

33

41

60

64

76

79

63

Day

16

52

32

33

32

42

5R

66

75

79

68

17

52

32 

32

__

4?

50

69

78

69

18

53

32 

32

33

43

47

70

77

78

68

19

55

32 

32

33

43

47

69

77

78

67

20

55

32 

32

44

72

72

72

2

5

3

3

4

7
HUMBOLDT RIVER BASIN Continued

10-3350. HUMBOLDT RIVER NEAR RYE PATC

(Irrigation network station)

LOCATION. Lat 40°28'00", long 118°18'20", at gaging station 1,000 feet downstream from Rye Patch Da

DRAINAGE AREA. 16,100 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: December 1951 to September 1958, October 1959 to September 

Water temperatures: December 1951 to September 1958, October 1959 to September 1961, May 1962 to 

EXTREMES, 1965-66. Dissolved solids: Maximum, 628 ppm Sept. 1-30; minimum, 484 ppm Oct. 1-31.

Hardness: Maximum, 174 ppm Feb. 1-28, May 1-31, July 1-31; minimum, 152 ppm Sept. 1-30.

Specific conductance: Maximum daily, 1,010 micromhos Sept. 14, 25, 27-30; minimum daily, 729 microm

Water temperatures: Maximum, 72°F on several days during August; minimum, 34"F on many days during 

EXTREMES, 1951-58, 1959-61, 1962-66. Dissolved solids: Maximum, 2,190 ppm Sept. 1-5, 1954; minimum, 

Hardness: Maximum, 482 ppm Sept. 1-5, 1954; minimum, 86 ppm Jan. 25, 1958.

Specific conductance: Maximum daily, 4,010 micromhos Sept. 2, 1954; minimum daily, 384 micromhos Ju

Water temperatures (1951-54, 1956-58, 1959-61, 1962-66): Maximum, 78°F Sept. 21, 1958; minimum, 33

REMARKS. Flow completely regulated by Rye Patch Reservoir.

Chemical analyses, in parts per million, water year Octoher 1965 

Date 

of 

collection

Oct. 1-31, 1965. .

Dec. 1-31. ....... 

Jan. 1-18, 1966. .

Apr. 1-30........

June 12-30. ...... 

July 1-31. .......

Sept. 1-30. ......

Weighted average

Time-weighted 

average. .....

Tons per day. . .

Mean 

discharge

(cfs)

119 

50. 7 

86. 7 

750 

5. 9

7. 7 

115 

119 

436 

486

291 

464 

387 

321 

82. 9

247

~

Silica 

(SiO,)

43 

41

37 

40

~

Iron 

(Fe)

0. 00 

. 00

. 01 

.00

Calcium 

(Ca)

38 

40 

41 

40 

43

44 

41 

43 

42 

42

42 

42 

40 

36 

31

40

40

27

Magnesium 

(Mg)

16 

16 

15 

16 

15

16 

15 

15 

16 

17

16 

16 

18 

17 

18

17

16

11

Sodium 

(Na)

104 

102 

102 

104 

106

115 

150 

125 

112 

116

120 

140 

146 

150 

149

124

122

83

Potassium 

(K)

12 

13

14 

14

17 

1. 6

Bicarbonate 

(HCO,)

252 

268 

293 

287 

299

294 

302 

282 

296 

294

312 

312 

314 

304 

283

297

291

198

Carbonate 

(CO,)

16 

12 

0 

4 

0

6 

8 

14 

8 

10

0 

0 

0 

0 

6

Sulfate 

(S04 )

65 

63

69 

80

Chloride 

(Cl)

66 

66

73 

118

Fluoride

(F)

0.7 

. 8

.8 

.8

Nitrate 

(NO,

0. 6 

.2

1.3 

1.0
HUMBOLDT RIVER BASIN Continu

10-3350. HUMBOLDT RIVER NEAR RYE PATCH, N

Specific conductance (micromhos at 25°C), water year Octo

Day

1.....

2.....

3.....

4.....

6.....

7.....

8.....

9.....

10.....

12..... 

13.....

14.....

15.....

16.....

17.....

18.....

19.....

20.....

22..... 

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Average

October

776

734

777

763

770

770

768

767

770

750 

761

729

772

766

776

775

777

774

784 

778

778

776

776

779

775

782

774

774

767

November

779

779

778

772

776

781

778

777

753

777 

775

762

774

796

792

787

786

793

791 

782

790

790

787

800

794

789

808

783

December

789

801

796

794

802

790

791

789

798

794 

797

807

803

793

796

798

798

803

800 

802

800

796

800

802

785

780

783

798

796

J.mu.10

789

783

786

789

789

787

788

791

785

786 

787

787

792

794

793

794

811

849 

822

810 

805

805

810

804

808

813

810

818

798

February

835

814

841

827

820

824

824

823

821

827 

833

831

829

825

831

833

835

835

848 

841

841

834

834

837

837

831

March

986

992

992

995

992

992

981

976

968

883 

888

908

892

863

844

846

850

845

843 

845

839

840

843

841

835

822

824

899

April

836

831

827

853

823

822

820

824

826

828 

828

829

829

820

822

824

829

831 

829

824

826

820

822

828

826

824

826

M.

8

8

8

8

8

8

8

8

8

8

8

8
HUMBOLDT RIVER BASIN Continued

10-3350. HUMBOLDT RIVER NEAR RYE PATCH, NEV. Cont

Temperature (°F) of water, water year October 1965 to S

October .......

November ..... 

December .....

January. .......

April.......... 

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

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

August ........ 

September .....

1

60

42 

35

34

45

52

68 

68

2

59

42 

35

34

45 

52

69 

66

3

59

42 

35

3!>

45 

53

69 

66

4

56

42 

35

3!>

45 

54

69 

66

5

56

42 

35

36

45 

53

69 

66

6

55

42 

35

36

47 

54

70 

66

7

55

bl 

42

35

36

48 

54

70 

65

8

55

42

35

36

48

54

70 

65

9

55

51 

42

35

36

48 

55

70 

65

10

56

bO 

42

35

37

48 

55

70 

65

11

56

50 

40

35

37

48 

55

70 

64

12

55

49 

40

35

37

48 

55

70 

64

13

40

38

48 

55

71

64

14

40

38

48 

56

71 

63

15

39

38

49 

56

72 

63

Day

16

39

38

50 

56

72 

62

17

39

38

50 

56

72 

63

18

38

38

49 

56

72 

62

19

38

38

49 

57

72 

62

20

36

38

58

72 

61

2

3

4

5

7

6
PYRAMID AND WINNEMUCCA LAKES BASIN

10-3459. TRUCKEE RIVER AT FLORISTON, CALIF. 

(Formerly published as station number 10-3460

LOCATION. Lat 39°23'40", long 120°01'25", at bridge at Floriston, Nevada County, 0.2 mile above flume 

upstream from Farad.

DRAINAGE AREA. 932 square miles, upstream from gaging station. 

RECORDS AVAILABLE (revised). Chemical analyses: October 1958 to September 1961, January 1964 to Sept

Water temperatures: January 1964 to September 1966. 

EXTREMES, 1965-66. Dissolved solids: Maximum, 77 ppm Mar. 1-28; minimum, 53 ppm May 1-31.

Hardness: Maximum, 40 ppm Feb. 1 to Mar. 28; minimum, 26 ppm May 1-31.

Specific conductance: Maximum daily, 124 micromhos Feb. 19; minimum daily, 60 micromhos May 22.

Water temperatures: Maximum, 66°F July 23-25; minimum, freezing point on several days during Januar

EXTREMES, 1964-66. Dissolved solids: Maximum, 85 ppm Dec. 1-21, 1964; minimum, 45 ppm Dec. 22-31, 19

Hardness: Maximum, 43 ppm Mar. 1-31, 1964; minimum, 18 ppm Dec. 22-31, 1964.

Specific conductance: Maximum daily, 141 micromhos Feb. 3, 1964; minimum daily, 39 micromhos Dec. 2

Water temperatures: Maximum, 68°F July 24, 1964; minimum, freezing point on several days during win

REMARKS. Maximum Boron (B) for water year, 0.1 ppm May 1-31. Records of daily discharge data given f

10-3460. Truckee River at Farad, Calif., for period October 1958 to September 1961.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1-31, 1965..

Jan. 1-31, 1966. . 

Feb. 1-28. .......

Sept. 13-30. .....

Weighted average

Tons per day. . .

Mean 

discharge

(cfs)

559 

447 

1560 

901 

382

574 

906 

691 

939 

525

568 

574 

515 

471 

500

657

-

Silica 

(S102)

19 

25 

16 

17 

18

19 

19 

18 

17 

20

19 

15 

14 

15 

14

18

18

31

Iron

(Fe)

0. 00 

.00 

. 01

.07 

. 07 

.02 

.04 

. 00

. 00 

. 01 

. 00 

. 00 

. 00

0.02

0.02

0.03

Calcium 

(Ca)

8.8 

9.2 

9.2 

9. 8 

11

11 

9. 4 

8.0 

6.0 

8.0

9. 5 

9.5 

9.3 

7. 9 

9.4

8.9

9.1

16

Magnesium 

(Mg)

2.1 

3.0 

2.7 

2.7 

3. 0

3.0 

2.3 

2. 6 

2.6 

2.5

2.8 

2.7 

2.7 

2. 3 

2.8

2. 5

2.4

4.4

Sodium

(Na)

4.1 

4.8 

5.9 

5.9 

6. 6

5.3 

4.2 

4.1 

3.3 

3.8

5.6 

5.7 

5. 5 

3.3 

5. 2

4.9

4.9

8.7

Potassium

(K)

.2 

.3 

.8 

. 8 

. 3

.6 

. 1 

. 1 

.1 

. 2

. 6 

. 7 

. 6 

.1 

.5

1.4

1.4

2.6

Bicarbonate 

(HCO,)

44 

47 

51 

52 

58

53 

42 

40 

34 

40

48 

50 

57 

42 

54

47

47

82

Carbonate

(ccg

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

--

Sulfate 

(S0«)

3.0 

5.0 

3.0 

3.0 

3.0

4.0 

4.0 

3.0 

3.0 

3.0

3.0 

2.0 

1.0 

2.0 

1.0

3.0

3.0

5.3

Chloride 

(Cl)

1.2 

1.5 

1.3 

1.6 

2.3

2.4 

1.5 

1.2 

. 8 

1.0

1.4 

1.3 

1.1 

.8 

1.1

1.4

1.4

2.4

Fluoride

(F)

0.0 

.0

.1

.0

.1

.2

.0 

.0 

.0

0.1

0.1

0.1

Nitrate 

(NO,

0.4 

.3 

.3 

.2 

.4

.8 

1.1 

1.8 

1.5 

1.1

1.3 

.8 

.0 

.0 

.0

0.8

0.8

1.5
PYRAMID AND WINNEMUCCA LAKES BASIN -Cont

10-3459. TRUCKEE RIVER AT FLORISTON, CALIF. C

Specific conductance (micromhos at 25°C), water year October 

M.i Day

1.....

2.....

3.....

4.....

5.....

6.....

7.....

8.....

9.....

10.....

11*....

12.....

13.....

14.....

15.....

16.....

17.....

18.....

19.....

20.....

21.....

22.....

23.....

24.....

25.....

26.....

27.....

28.....

29.....

30.....

31.....

Average

October November

80

78

80

80

80

80

80

81

79

81

80

83

83

84

78

79

80

81

80

82

81

84

82

81

87

82

83

86

84

86

85

81

86

85

86

87

88

87

89

89

88

96

96

98

96

94

93

94

93

December

102

98

95

95

95

99

100

99

100

100

99

101

100

101

101

_

94

 | 

 |

Januur, Fchruar,

102

100

100

101

97

97

99

97

102

98

97

98

97

101

99

99

100

98

101

99

101

99

99

99

101

101

110

110

109

112

114

109

110

114

105

107

106

104

107

108

108

108

109

111

121

121

121

124

113

111

110

11U

112

110

113

March

116

108

107

109

109

111

110

113

111

114

107

110

102

108

100

97

99

99

97

97

97

102

99

99

96

96

::

111

120

101 111

89

84

85

102

April

82

82

82

83

84

81

80

80

80

83

82

85

88

87

85

76

83

75

83

86

85

81

79

83

79

71

72

75

72

70

80

 

6

6

6

6

6
QUALITY OF SURFACE WATERS, 1966

tto OZ
PYRAMID AND WINNEMUCCA LAKES BASIN Continu

10-3516.5. TRUCKEE RIVER AT WADSWORTH, NEV

LOCATION. Lat 39°38'19", long 119°16'09", temperature recorder at gaging station on 

Highway 40 bridge, and 0.2 miles northeast of Wadsworth, Washoe County. 

DRAINAGE AREA. 1,719 square miles.

RECORDS AVAILABLE. Water temperatures: July 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 82°F June 14, Aug. 3; minimum, 34°F 

EXTREMES, July 1965 to September 1966. Water temperatures: Maximum, 82°F June 14, A

22, 1966.

Temperature (°F) of water, water year October 1965 to 

October

Maximum ....

Minimum .... 

December

Minimum .... 

January

Maximum .... 

Minimum .... 

February

March

April 

Maximum ....

Nfay

Tune

Maximum

Minimum ....

July

Minimum ....

September

Minimum ....

1

54

56

49 

44

43

35 

43

40

47

67

56

71

54

69

59

75

80

69

60

2

57

57

51

34

39

45

67

57

73

56

69

55

73

80

3

56

57

50

34

42

46

66

55

74

4

56

55

51

35

43

46

65

53

70

58| 59

71

55

75

82

71 69

67] 66 

59 60

12

5/

77

80

11

61

5

56

53

49

39

41

49

66

54

70

59

fO

58

78

79

6/

63

6

57

55

4 I

41

40

52

69

5 /

71

54

65

60

77

77

68

63

7

57

53

48

41

37

54

70

59

71

57

68

58

76

/8

bl

63

8

56

55

50

40

37

53

67

59

72

60

72

59

71

II

68

62

9

56

53

49

40

39

54

10

58

53

48

11

57

53

49

40 39

39 37

58

62 62

56

64

60

n

62

53

69

57

/5

61

74 75

63|62

77

bl

62

/ /

68

60

58

60

53

66

12

56

52

51

39

39

55

61

53

70

55 j 56

Ib

60

76

Ib

68

60

IK

61

76

Ib

61

59

13 14 15

~

56 55 51

51

50

38

41

37

60

66

53

74

59

78

63

76

Ib

52 53

51 bt

42 40

39 4U

37 38

58 56

68

54

71

58

82

66

74

Ib

68 67

58155

70

56

73

57

80

66

74

^6

68

59

Day

16 ' 17 18

48 49

51

51

37

38

37

49

53 53

49 50

35

36

35

36

39 42

53 54

70

58

73

57

77

65

73

IV

69

60

67

59

7?

58

57

63

53

73

59

80

64

72

79

70

62

81

66

77

Ib

69

60

19

52

51

47

35

36

57

62

51

74

59

81

66

76

/5

68

59

20J

51 

50 

46 

35

35

58

64

51

76

62 

71

65

73

66

63
HONEY LAKE BASIN

10-3565. SUSAN RIVER AT SUSAKVILLE, CALIF.

LOCATION. Lat 40°25'05", long 120°40'15", at gaging station 0.5 mile west of Susanville, Lassen Count

DRAINAGE AREA. 184 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 6, 1965. . . .

Jan. 19, 1966.... 

Feb. 9. ..........

Mar. 24.. ........

Sept . 7 ..........

Mean 

discharge 

(cfs)

8.8 

9.8 

12 

24 

22 

67

120 

90 

144 

7.3 

1.1 

2.2

Silica 

(SiQ.)

22 

34

Iron 

(Fe)

Calcium 

(Ca)

11 

19

Magnesium 

(Mg)

3.3 

10

Sodium

(Na)

6.2 

5.8 

5.8 

5.3 

5.9 

4.9

3.9 

3.8 

2.1 

5.0 

7.2 

7.1

Potassium 

(K)

0.9 

2.5

Bicarbonate 

(HCO,)

104 

97 

98 

92 

94 

69

54 

54 

34 

89 

131 

124

Carbonate 

(CO,)

2

6 

0 

0 

0 

0

0 

0 

0 

0 

2 

2

Sulfate 

(S04 )

2.0 

1.0

Chloride 

(Cl)

0.5 

.5 

.9 

. 8 

1.2 

1.0

.2 

.4 

.2 

.2 

.6 

.6

Fluoride 

(F)

Nitrate

(Ncg

0.7

. 6 

. 3
ABERT LAKE BASIN 

10-3871. CHEWAUCAN RIVER NEAR VALLEY FALLS, OR

LOCATION (revised).--Lat 42°30'57", long 120°15'03", at Clark and Johnson Ranch, below Crooked Creek 

RECORDS AVAILABLE. Chemical analyses: October 1961 to September 1966.

Chemical analyses, in parts per millic ater year October 1965 

Date 

of 

collection

Oct. 15, 1965....

Jan. 26, 1966....

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

17 

12 

14 

33 

30

30 

31 

49 

41 

12

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S0«)

Chloride 

(CD

4.0 

2.8 

3.5 

10 

10

14 

11 

21 

8.0 

.5

Fluoride 

(F)

Nitrate

(NOJ
MISCELLANEOUS ANALYSES OF LAKES AND STREAMS IN THE G

analyses, in parts per million, water year October 19

Of

collection

discharge 

(cfs)

Silica 

(S102)

Iron 

(Fe)

Calcium 

(Ca)

nesium 

(Mg)

Sodium 

(Na)

tassium 

(K)

Bicarbonate 

(HCOS)

Car

bonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(CD

Fluorlde 

(F)

Nitrat

(NO

BEAR RIVER BASIN

Oct. 6, 1965. ....

Nov. 18, 1965. . . .

15

117

5. 3 57

4.5

277 5. 2

91 5. 0

13

14

]0-01

3. 9

2. 7 0. 5

15. BEAR RIVI

1.6 0.5

241

:R NEAI

54

0

1 UTAP

0

8.2

-WYOMIN(

8.6

2.9

J STATE L

2. 2

0.1 0.

NE (4058

0. 0 0.

10-0265. BEAR RIVER NEAR RANDOLPH, UTAH (4148 1110

46 18 16 1.6 220 0 22 15 0. 2 0. 

10-0320. SMITHS FORK NEAR BORDER, WYO. (4217 1105

56 13 2. 2 0. 6 177 0 53 2. 1 0. 0 0. 

10-0395. BEAR RIVER AT BORDER, WYO. (421241 111030

Oct. 8 .... 

Apr. 14, 1966. . . .

July 14. .........

438 

1130

216

5.5 

8.7

11

0. 91

.03

54 

56

68

19 

33

39

17 

39

54

1 8

1. 0 

3.6

3.0

230 

283

341

0 

0

0

37

43 

72

89

18 

35

50

. 2 

.3

.3

. 

. 

1.

10-0410. THOMAS FORK NEAR WYOMING-IDAHO STATE LINE, WYO. 

Apr. 14, 1966. . . .

July 14. .........

23

23 

79 

90 

34

7. 4

8.6 

11 

8. 8 

6. 8

62

72 

73 

72 

65

20 148

10-04:

22 

28 

26 

25

91 

80 

78 

83

1.4

n. TJ

1. 5 

2.1 

1.8 

1.4

236

10MAS ]

276 

271 

296 

278

0 56

"ORK NEAR BOR1

0 

0 

0 

0

55 

84 

53 

56

215 0. 2

3ER, WYO. (421

126 

109 

109 

115

0. 2 

. 2 

. 2 

.2

1. 

256 

3. 

1. 

1.

3.

10-0460. RAINBOW INLET CANAL NEAR DINGLE, IDAHO (4

236 0
10-0465. BEAR RIVER BELOW STEWART DAM, NEAR MONTPELIER, IDAH

Oct. 4, 1965. ....

Apr. 14, 1966. . . .

July 14. .........

5. 9

5.3

10

5.6

9. 7

11

57

64

62

20

31

37

26

45

56

1. 8

3. 6

3.0

236

284

328

0

0

0

43

79

81

32

47

54

0. 2

.3

.3

0. 

1. 

1

10-0470. MONTPELIER CREEK NEAR MONTPELIER, IDAHO (42

Oct. 4, 1965. 6.7 1.2 242 2.8 0.1 0

10-0564. ST. CHARLES CREEK BELOW UPPER SOUTH CANAL NEAR ST. CHAR

Oct. 4, 1965. .... 1 5 0 48 1 25 1 2.2 0. 5 260 0 I 3. 8 2.0 0 ll 0 

10-0595. BEAR LAKE OUTLET CANAL NEAR PARIS, IDAHO 

Oct. 4, 1965. ....

Apr. 14, 1966. . . .

July 14. .........

915

3. 0

1330

5. 7

5. 7

12

43

35

28

40

39

64

31

47

47

3.6

5. 2

5.3

280

264

358

4

0

0

55

68

78

36

44

32

49

0. 2

. 3

.2

0

. 

. 

10-0705. GEORGETOWN CREEK BELOW DIVERSIONS, AT GEORGETOWN, 

Oct. 4, 1965. .... 3.3 212 4 1.0

10-0728. EIGHTMILE CREEK NEAR SODA SPRINGS, IDAHO (42

Oct. 4, 1965. .... 7.7

Oct. 4, 1965. ....

6.2 52 1 8.8J 2.7 0.7| 194 0 5. 6

10-0745. BAILEY CREEK NEAR SODA SP

280 0

2.8 0.1

RINGSi IDAHO (

0

423

10-0750. BEAR RIVER AT SODA SPRINGS, IDAHO (423700 

Oct. 4. 1965. .... 1110 7. 5 48 37 30 281 2 53 I 

10-0795. BEAR RIVER AT ALEXANDER, IDAHO (423845 

Apr. 13, 1966. . . .

July 14. .........

1140

884

1600

8.3

14

13

59

58

44

36

33 

37

61

27

23 

29

44

3.3

3.7 

3.4

5. 1

314

299 

330

384

0

0 

0

0

52

54 

55

79

28

20 

32

46

0. 3

. 3 

. 2

. 3

0. 

1

1. 

A Calculated fr
MISCELLANEOUS ANALYSES OF LAKES AND STREAMS IN THE GREAT B

Chemical analyses, in parts per million, water year October 1965 to 

Date 

of 

collection

Mean 

discharge

(cfs)

Silica 

(S103)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO.)

Chloride 

(Cl)

Fluorlde 

(F)

Nitrate 

(NOJ

BEAR HIVER BASIN Continued 

10-0853. COTTONWOOD CREEK BELOW CLEVELAND CANAL, NEAR CLEVELAND, 

1

. -| |

10-0865. BEAR RIVER BELCW UTAH POWER AND LIGHT COMPANY'S TA1LRACE, AT O

Oct. 3, 1965. .... 1360 35

10-0917.

336

WESTON CREE

276

0

K NEAR MALAD CITY, IDAHO (42065

0 

10-1022.5. BEAR RIVER NEAR SMITHFIELD, UTAH (415024 

Nov. 24, 1965. . . . 2000 11 63 33 45 6. 6 327 0 53 54

10-1152. LOGAN RIVER BELOW BLACKSMITHS FORK, NEAR LC

Nov. 24, 1965. . . . 54 6.4 56 20 4.5 2.0 251 0 21 | 6.6

0. 3

X5AN, 

0.2

1.2

UTAH

-

10-1190. LITTLE MALAD RIVER NEAR MALAD CITY, IDAHO (

15 j 23 59 22 16 2. 9| 248 0 13 36 0.1 1.

10-1207. MALAD RIVER NEAR MALAD CITY, IDAHO (420925 

Oct. 3, 1965

Oct. 3, 1965. .... 24

30

25 136 55

168

10-1255

928

. MAL

77

432 0

AD RIVER AT WOODRUF

522 0 68

0.3

F, IDAHO (420150 1

1550 0.6 1.7

10-1258. MALAD RIVER BELOW BEAR RIVER DUCK CLUB CANAL, NEAR BEAR RIVER 

Nov. 18, 1965. . . . 32 25 112 66 531 56 506 0 197 820 1 0. 7\ 9. 

10-1260. BEAR RIVER NEAR CORINNE, UTAH (413435 1

Dec. 28, 1965. . . . 3140 14 55 44 71 8. 9 318 10 51 101 0. 3 2. 

WALKER HIVER BASIN 

10-2930. EAST WALKER RIVER NEAR BRIDGEPORT, CALIF. (381

May 10. ...........

14 

165 

74 

258 14 24 3.6

10 

14 

17 

14 2.8

105 

122 

110 

115

0 

0 

0 

0 11

0.7 

2.0 

2.7 

1.9 0 
10-2960. WEST WALKER RIVER BELOW LITTLE WALKER RIVER, NEAR CCLEVILL

7.0 

6.0 

5.9 

1.9 0.5

60

60

23

0

0

1.0

0.7

.2 0

Nov. 16, 1965..... 46

Jan. 11, 1966..... 72

Mar. 22........... 112

May 10. ........... 704 6.5 _____5.6 0.7__

CARSON RIVER BASIN

10-3082. EAST FORK CARSON RIVER NEAR MARKLEEVILLE. CALIF, 

__^__________________ (Formerly published^as statipn number, 10-306

Nov. 16, 1965..... 151

Jan. 11, 1966..... 125

Mar. 22........... 242

May 10. ........... 1070 14 ____ 6.6 1.5____________________________________________

__________________________________ 10-3100. WEST FORK CARSON RIVER AT JKDOD FORDS, CALIF. (38

Nov. 16, 1965.....26

Jan. 11, 1966..... 35

Mar. 22........... 65

May 10............ 290 12 6.0 1.0

Nov. 15, 1965 

Jan. 10, 1966 

Mar. 21......

May 9.. .......... ________ 11 ____ 9.2 2.2

__________________________________________ 10-3380. TRUCKEE RIVER NEAR TRUCKEE, CALIF. (391730 

Nov. 15, 1965 

Jan. 10, 1966 

Mar. 21. .....

May 9. . .......... _______13 7.0 1.6

Dec. 17, 1965.... 32 0.06 4.0 1.9

May 26, 1966..... 26 .10 3.0 1.2

Aug. 26.......... 28 .05 4.1 1.9

8.1 

8.8 

9.0 

3.8 0.9 3.0

2.2

2.0

2.3

.5 0

3.4

3.5

3.6 

1.9 0.5

40

39

1.0

0.4 

.2

.2 0

PYRAMID AND WINNEMUCCA LAKES BASIN 

10-3370. LAKE TAHOE AT TAHOE, CALIF. (391004 120

5.9 

5.7 

6.4 

6.1 1.5 1.0

1.0

1.1 

1.6 

1.5 0.

5.9 

6.1 

6.1 

3.2 4.0

1.3

1.2

4.4

.7 0.

ABERT LAKE BASIN 

ELDER CREEK NEAR ELY, OREG. (423150 1204040)

4.0 

3.1

1.7

1.1

34 0.2 

.4 

.2

0.5 

.0 

.2

0.1 

.1 

.0

0.

A Calculated from determined constituents.
MISCELLANEOUS ANALYSES OF LAKES AND STREAMS IN THE GREAT B

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Time 

(24 hour)

Water 

temperature 

(°F)

Sampling 

point

Discharge 

(cfs)

10-2605.5. WEST

Mar. 14, 1966. ....

1930 

1045 

1245

48 

57

500 

28 

3.5

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Per

0.002 0.004 0.0

MOJAVE RIVER BASIN 

FORK MOJAVE RIVER ABOVE CEDAR SPRINGS, CALI

42300 

11 

3

59200 

.8

T

7 9 1

10-2607. EAST FORK OF WEST FORK MOJAVE RIVER ABOVE CEDAR SPRINGS, 

Nov. 22, 1965. ....

Mar. 14, 1966. ....

1700 

0955 

1130 51

1330 

39

7.7

15100 

278

7

54100 

29 

.2

10-2608. WEST FORK OF MOJAVE RIVER BELOW CEDAR SPRINGS, CALI

Mar. 14, 1966.. . ..

1235 

1500 

1345

53 

43 

63

4 

425 

44

64 

1680 

74

0.7 

1930 

8.8

T Less than 0.05 ton.
PART 11. PACIFIC SLOPE BASINS IN CALIFORN

SANTA CLARA RIVER BASIN 

11-1115. SESPE CREEK NEAR WHEELER SPRINGS, CA

LOCATION. Lat 34°34'40", long 119°15'25", temperature recorder at gaging station at 

5 miles upstream from Cold Springs damsite, and 5 miles northeast of Wbeeler Sprin

DRAINAGE AREA. 49.5 square miles.

RECORDS AVAILABLE. Water temperatures: February 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 76°F Aug. 17, 18; minimum, 37°F Jan

EXTREMES, 1962-66. Water temperatures: Maximum, 84°F Aug. 11, 1964; minimum (1962-6

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum ....

1

61 

51

53

49

48 

48

45 

44

44 

42

49

67 

57

73 

63

67 

56

2

60 

51

51

47

48 

48

44

42

*3 

39

46

67 

58

71 

67

68

57

3 4^,6

61

51

51 

46

48 

48

44 

42

46 

40

45

67 

57

72 

66

69 

59

60 

50

51

47

48 

47

44 

43

47 

42

45

66 

56

74 

66

70 

60

11

51 

48

48 

47

45

47 

42

48

62

53

50 

46

48 

47

46

47 

44

49

Day

7 8 9 10

63 

54

49

46

48

46

4J 

44 

42

49

63 

55

51 

48

48

61

53

51 

48

49

61

53

50 

46

49

47 47 46

42

39

49

"

67 

57

74 

66

71 

60

67 

58

73 

64

68 

58

68 

58

73 

64

67 

56

66 

48

73 

63

66

53

44 

41

49

64

56

67 

58

72

62

67 

56

44 

43

52

-

66 

57

66

56

71 

62

67 

55

11 12

62 

54

50 

47

62

54

48 

46

47 '47

44 45 

42 44

52 52

67 

58

65 

56

71 

62

66 

56

"

~

67 

58

65 

54

73 

62

64

54

13

60 

54

50 

48

45

46 

44

52

67

57

67 

57

73 

63

63 

53

14 15 16

56 

54

50 

50

47

46 

44

52

68 

59

68 

57

73 

63

63 

52

58

53

51 

49

48

46

44

53

69 

61

67 

57

64

64 

53

54

47

51

50

47

46 

43

53

67 

58

67 

56

64

66 

53

17 i 18 19 ' 20 

53 

48

50 

50

46

46 

43

50

66 

56

68

57

66

69 

57

55 

50

50 

50

48

47 

44

51

66

56

70 

59

66

64 

61

58 

52

51

50

49

47 

43

52

66 

58

67 

61

65

60 

56

57 

51

52 

51

50

49 

45

54

69

59

70 

61

62

62 

54
BIG SUR RIVER BASIN 

11-1430. BIG SUR RIVER NEAR BIG SUR, CALI

LOCATION. Lat 36°14'45", long 121°46'20", temperature recorder at gaging station on 

upstream from Post Creek, and 2.6 miles southeast of Big Sur, Monterey County. 

DRAINAGE AREA. 46.5 square miles.

RECORDS AVAILABLE.--Water temperatures: October 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 68°F Aug. 1, 5, 17; minimum, 43°F 

REMARKS. Clock stopped Oct. 20 to Nov. 24.

Temperature (°F) of water, water year October 1965 to 

October 

Maximum .... 

Minimum .... 

November

December"1

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum ....

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum ....

Maximum ....

Maximum .... 

Minimum .... 

August

Mmi'mum

58 

57

51 

50

50 

48

49 

49

50

57 

55

57 

52

58 

54

64 

60

68 

65

63 

61

58 

57

51 

50

48 

47

49

47

49

57 

55

59

58 

53

65

61

67 

65

63 

61

58 58

57 57

59

56

60 61 60 

59 60 59

59 59 

59 58

58 

57

58

57

58

57

58

57

57 56

55 54

56

53

51 50 

50 49

48 50 

47 48

50 52 

49 50

47 47

58 57 

56' 56

48' 48

59, 60

54i 55

61' 61 

67 66

61, 62 

601 60

50 

49

52 

50

53 

52

50

57 

55

47

60 

57

61 

68

62

60

50 50 51 

49 49 49

52 52 52

51 51 51

53 51 50 

51 , 50 49

51 52 52

57 ' 57 57 

55 , 54 55

48 50|48

59 59,61 

58 58|58

61 6 1 | 6 1 

67 67 66

60 61 | 61 

60 60 | 59

52 52

51 50

52 50

50 50 

49 50

51 53

57 57 

55' 56

46' 48

58 59

60 60 

66 65

61 61 

59 60

50 

50

50

50 

47

53

57 

55

48

58

60

65 

63

61 

60

51 

50

48

49 

48

53

57 

56

49

59

60

64 

63

60 

58

50 

48

48

48

48

49 | 48 

46| 45

53 53

57l 57 

55 55

49 48

61

61

65 

63

56

64

61

65 

63

57 

56

49 49 

46 46

52 53

59 59

55 57

48 49

64, 63

65 65 

61 62

66 67 

63,64

58 59

57 57

49 

46

52

59 

55

50

46

61

66 

62

68

65

60 

58

54 

53

57 

55

57 

56

49 

48

52

50

11 

59

52

50

53 

51

53 

51

60

52 

49

52

50

53 

51

59

60

67 

64

67 

65

61 

60

62 63

66 '65 

64 63

67 65 

65 64

60 58

58 57
PACIFIC SLOPE BASINS IN CALIFORNIA

0-J3

01 O

O,

g i J, <v o <* JJ

ajiiif

]§" Jii*

Is 3|J*j

|l ^ **

li PP

3 S c £ -2 h 3

t:

S°a

i 5'"*

||£

 s 

sg

o

i?m 

S §-2 °

O " N^

, , 'Ti

CQ rt 2 rt O

(Sl|8

lit

I-ill

3|1

11

II

^| s

Date of 

collection

CM H CM O 

00 00 00 00

o o m c^

co co co m

CO CN CM *

CD U3 CD O>

o

10 O> rH CM

H ^

O t- 00 O> 

CN 00 O> CO

H H

O

n 

o

CM

O O O rH 

O

rH 

O

O

O O> CM 00 

rH H CM

CO

O O O O

O in co in

H rH H

CM

H H rH CM

CO

rH

rH

HI

H

O CO CO

IO CO 

<D CO

a> <n

rH rH

oo co in

rH rH H H 

rH

> B h X

O rt ri rt
SALINAS RIVER BASIN

11-1475. SALINAS RIVER AT PASO ROBLES, CALIF

LOCATION. Lat 35°37'40", long 120°41 I 05", at gaging station in Paso de Robles Grant, at bridge on St

miles upstream from Huerhuero Creek. 

DRAINAGE AREA. 389 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1962 to May 1966 (discontinued). 

REMARKS. Stream dry most of year.

Chemical ilyses per million, October 1965 to 

Date 

of 

collection

Dec. 7, 1965. . . . 

Jan. 5, 1966. ....

May 10. ..........

Mean 

discharge 

(cfs)

Silica 

(SiQ,,)

25

Iron 

(Fe)

Calcium 

(Ca)

87

Magnesium

(MB)

33

Sodium 

(Na)

40 

23 

25 

40 

78 

97

Potassium 

(K)

4.3

Blcarbonate 

(HC03)

213 

220 

222 

262 

284 

346

Carbonate

(ccg

11

0 

2 

10 

12

8

Sulfate 

(SO,)

178

Chloride 

(Cl)

28 

20 

22 

36 

65 

78

Fluorlde 

(F)

Nitrate 

(NO

1. 
SALINAS RIVER BASIN Continued 

11-1488. NACIMIENTO RIVER NEAR BRYSON, CALIF.

LOCATION. Lat 35°48'06", long 121°06'50", at gaging station 0.6 mile upstream from Tur

County, and 10 miles southwest of Lockwood. 

DRAINAGE AREA. 140 square miles. 

RECORDS AVAILABLE. Water temperatures: March 1958 to September 1959, October 1960 to 

Sediment records: March 1958 to September 1959, October 1960 to September 1964, Marc

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 3,540 ppm Jan. 30; minimum 

Sediment loads: Maximum daily, 16,800 tons Jan. 30; minimum daily, 0 ton on many day

EXTREMES, 1958-59, 1960-64, March 1965 to September 1966. Sediment concentrations: Ma

daily, no flow on many days.

Sediment loads: Maximum daily, 50,700 tons Feb. 9, 1962; minimum daily, 0 ton on many 

REMARKS. No flow Oct. 1 to Nov. 13, July 1 to Sept. 30.

Temperature (°F) of water, water year October 1965 to Sep

March

April..........

June..........

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

September .....

1 2 3 4 5 6 7 8 9 10 1 1

62

12 13

65

14 15

66

Day

16 17 18

62

,9 20

63

21 
QUALITY OF SURFACE WATERS, 1966

SALINAS RIVER BASIN--Continued 

11-1488. NACIMIENTO RIVER NEAR BRYSON, CALIF. ContInued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2. .

3..

4,.

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cf.)

0

Suspended sediment

Mean

tration 

(ppm)

Tons

per 

day

0

JANUARY

1030

635

488

380

323

277

249

211

187

169

149

138

130

117

110

103

94

89

85

83

79

74

72

70

68

64

64

61

431

1530

516

8076

200

145

7

2

2

~

7

_

779

3540

1260

"

8 556

249

140

72

26

5.2

2.7

1.7

1.0

.9

.8

.7

.7

.6

.6

.6

.8

.0

.4

.6

.3

.0

.8

.6

.6

.3

.3

.3

S 5100

S 16800

K 1900

24868.5

NOVEMBER

Mean 

discharge

(cfs)

0

0

0

0

0

0

0

0

0

0

0

0

0

60

35

1100

1660

2200

460

245

169

1230

2120

1350

918

492

323

237

190

160

12949

Suspended sediment

Mean

concentration 

(ppm)

__

~

_

772

1210

37

18

11

1260

526

118

27

15

20

--

Tons

per 

day

0

0

0

0

0

0

0

0

0

0

0

0

0

32

9.4

530

S 5030

K 12000

K 51

12

5.0

S 16400

K 4100

K 430

67

20

13

13

7.7

4.3

38724.4

FEBRUARY

504

406

332

462

819

735

534

444

370

314

273

237

211

187

172

154

146

140

192

181

1*6

140

132

122

114

114

105

100

~

7786

185

71

142

22

_

1

~

1

_

~

"

K 260

82

22

K 160

K 330

K 51

5.8

4.8

4 .

3.

2.

1.

1.

.

,

.

.

2.

1.

,

.

,

.

.

.

1.

~

939.9

DECEMBER

Mean 

discharge

(cfs)

138

117

110

100

92

85

79

77

Suspended sediment

Mean

concentration 

(ppm)

_

3

8

_

4

74 '

72

70

130

112

94

83

77

72

68

64

62

62

61

57

53

94

100

85

1350

2650

2440

2050

10778

4

_

8

_

_-

6

_

856

221

528

300

~

Tons

per 

day

1.9

.9

1.5

2.2

1.7

1.4

1.1

 8

 8

,e

.6

K 3.3

2.1

1.8

1.3

1.2

1.2

1. 1

1.0

.8

.8

.7

.6

.6

2.0

1.9

1.4

S 10700

K 1700

K 3900

B 1660

17995.5

^ARCH

96

100

94

89

85

81

77

72

68

66

64

62

59

57

55

52

52

50

8

7

5

4

4

2

1

40

38

38

38

37

35

1816

9

__

~

_

1

_-

__

2

_-

1

__

__

__

_

4

_

2

2.3

1.1

.8

.5

.2

.2

.2

.2

.4

.4

.3

.2

.2

.2

.1

.1

.1

.3

.3

.4

.4

.5

.5

.3

.3

.3

.2

.2

.2

.2

.2

11.8

S Computed by subdividing day.

B Computed from estimated-concentration graph.

K Computed from estimated-concentration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SALINAS RIVER BASIN--Continued

11-1488. NACIMIENTO RIVER NEAR BRYSON, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4. 

5..

6..

7..

8..

9..

10,.

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

APRIL

Mean 

digcharge

(cf.)

33

32

32

30

29

29

28

27

27

30

35

32

29

28

27

24

22

22

22

22

21

21

20

19

18

17

15

15

14

14

0

734

0

Suspended sediment

Mean

tration 

(ppm)

2

1

6

3

2

13

._

3

7

8

2

-

JULY

Tons 

per 

day

0,2

.2

.2

.2

.2

.1

.1

.1

.1

.1

,1

.3

.5

.3

.2

.2

.1

, 1

.1

.8

.2

.2

.2

.3

.3

.3

.3

.2

.1

.1

6.4

0

MAY

discharge

(cf,)

13

12

11

11

11

11

11

12

13

14

14

15

14

14

13

12

11

10

9.6

9.6

9.0

8.4

7.8

7.8

7.2

7.2

7.2

7.2

7.8

8.4

8.4

327.6

0

Suspended sediment

Mean 

concentration 

(ppm)

2

2

2

~

_

"

--

Tons 

per 

day

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

T

T

T

T

T

T

T

T

T

T

T

2.4

AUGUST

0

JUNE

Mean 

discharge

(cfs)

9.0

8.4

.2

.2

.6

.0

.6

.6

.0

.0

.6

.2

.5

.6

.6

.2

.0

.9

.9

.9

.6

.4

.2

.2

.9

.8

.6

.6

.4

.2

~

109.9

Suspended sediment

Mean 

concentration 

(ppm)

_

--

_

_

__

.-

1

__

3

_

_

Tons 

per 

day

0.4

SEPTEMBER

0 0

Total load for year (tons) ............................................................. 82549.3

T Less than 0.05 ton.
SALINAS RIVER BASIN Continued 

11-1488. NACIMIENTO RIVER NEAR BRYSON. CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 23. ..........

Nov. 26. ..........

Dec. 29. ..........

Time 

(24 hour)

1410 

1100 

1130 

1000 

1230

Water 

temperature

(°F>

59 

55 

54 

49 

48

Sampling 

point

Discharge 

(cfs)

1250 

1100 

2140 

510 

1610

Sediment 

concentration 

(ppm)

237 

122 

129 

15 

67

Sediment 

discharge 

(tons per day)

800 

422 

745 

20.7 

291

Perc

0.002 0.004 0.00
SALINAS RIVER BASIN Continued 

11-1494. NACIMIENTO RIVER BELOW NACIMIENTO DAM, NEAR BRA

LOCATION. Lat 35°45'41", 120°51'16", at gaging station, 2.2 miles downstream from Nacimiento Dam, an

DRAINAGE AREA. 322 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1962 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 196

Date

of 

collection

Jan. 5, 1966. .... 

Mar. 1. ..........

Sept. 1. .........

Mean 

discharge

(cfs)

240 

.1 

4.7 

372 

466 

494

Silica 

(SiQ,)

10 

12

Iron 

(Fe)

Calcium 

(Ca)

27 

30

Magnesium 

(Mg)

14 

15

Sodium 

(Na)

9.4 

9.5 

10 

9.6 

10 

9. 5

Potassium 

(K)

1.3 

1.1

Bicarbonate 

(HC03)

141 

162 

168 

125 

126 

128

Carbonate

(ccg

0 

2 

2 

0 

2 

4

Sulfate 

(S0 4 )

33 

33

Chloride 

(Cl)

5.3 

6.9 

6.0 

6.9 

7.0 

5.3

Fluoride 

(F)

Nitrat

(NO

0.

. 

A Calculated from determined constituents
SALINAS RIVER BASIN Continued 

11-1499. SAN ANTONIO RIVER NEAR LOCKWOOD, CALIF

LOCATION. Lat 35°53'48", long 121°05'14", at gaging station in Los Ojitos Grant at h

Canyon, and 3.3 miles south of Lockwood, Monterey County. 

DRAINAGE AREA. 223 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966.

Sediment records: October 1965 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 394 ppm Dec. 31; minimum 

Sediment loads; Maximum daily, 654 tons Dec. 31; minimum daily, 0 ton on many days

REMARKS. No flow Oct. 1 to Nov. 17, June 3 to Sept. 30.

Temperature (°F) of water, water year October 1965 to S

Month

November ..... 

December .....

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

September .....

Day

1

46

48

81

2

42

3

51

4

50

5 6 7 8 9 10 11 12 13 14 15 16 17 18

58

19

56

20 2

6
PACIFIC SLOPE BASINS IN CALIFORNIA

SALINAS RIVER BASIN Continued 

11-1499. SAN ANTONIO RIVER NEAR LOCKWOOD, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

OCTOBER

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

Mean

discharge

(cfs)

12.. \

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

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..

Total

0

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

NOVEMBER

Mean

discharge

(cfs)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1 o

0

JANUARY

472

278

240

225

199

176

172

158

127

110

96

75

69

69

66

60

60

57

60

54

51

51

48

43

42

42

41

41

85

181

149

3597

190

90

36

41

S 255

68

23

25

17

12

9.8 i;~~

~2~2

11

10

159

126

"

7.7

5.5

4.5

3.9

3.0

2.8

4.1

3.6

2.0

2.6

2.3

2.3

1.9

1.7

1.5

1.3

.0

.7

.5

.3

.3

2.3

S 90

51

607.4

96

85

51

39

46

209

167

149

100

57

41

34

30

--

1104

127

127

123

118

209

2 5

1 5

1 7

1 5

1 6

132

127

103

96

85

78

78

78

82

96

75

69

69

69

66

66

60

60

3071

Suspended sediment

Mean 

concentration

(ppm)

__

__

~

__

328

24

6

3

35

294

78

73

18

"

Tons 

per

day

0

DECEMBER

Mean

discharge

(cfs)

27

0 21

0 20

0 II 20

0

0

18

18

0 | 16

0 | 15

0 15

0

0

0

0

0

0

0

0

S 93

S 5.8

.8

.3

K 11

K 180

15

23

36

48

43

36

32

27

27

27

27

27

27

27

35 27

2Q

16

30

54

6.3 ' 40

2.9

1.7

1.1

__

382.9

FEBRUARY

_

11

32

27

15

3.7

1.6

< 18

19

13

10

 ( 8.6

~

_

24

__

 

3

_-

8

"

7.3

8.9

8.2

6.4

5.7

4.8

4.2

2.1

1.5

1.1

.8

.6

.7

.9

.9

1.1

1.2

1.3

1.0

--

174.6

50

100

300

609

1802

Suspended sediment

_. "

Mean 

concentration

(ppm)

10

__

2

--

__

Tons 

per 

day

0.7

.3

.2

.2

.1

.1

 1

. 1

.1

- 1

. 3

1.0

 ! 1.2

7 .8

__

_-

__

_-

"

--

250

227

394

.6

.4

.3

.3

.2

.2

.2

.2

.2:l

1.2

.9

1.1

68

K 190

S 654

923.7

MARCH

60 5

57

54

51

0.8

. 8

.9

.0

54 .2

51

51

48

46

 ' .2

11

46

46

46

43

46

48

48

46

41

41

41

41

41

41

_

.4

.4

.4

:; 2

8

--

:!

.0

.0

.0

. 1

.3

_-

18

41 |

41

39 _-

39

36

34

32

--

9

27

1376 "

g 5

.8

.0

. 0

.9

.8

.5

.3

.0

.8

.8

.7

38.5

S Computed by subdividing day.

K Computed from estimated-concentratic graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

SALINAS RIVER BASIN Continued

11-1499. SAN ANTONIO RIVER NEAR LOCKWOOD, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

j APRIL

Day

1..

2..

3..

4. .

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

Suspended sediment

Mean 

dis- Mean

charge

(cfs)

21

21

23

21

20

20

15

15

20

16

23

21

21

20

15

11

11

1

1

\

\ (

10

9.0

470.0

tration

(ppm)

8

5

per

day

0.5

.4

.4

.3

.3

.3

.2

.2

.3

.2

5 .3

.?

3 .2

.2

3 .1

.1

2 .1

.1

2 .1

1

3

6

__

8

3

~

"

.1

T

.1

.1

.2

.2

.2

.2

.1

.1

.1

5.9

JULY

0 0

MAY

Mean 

discharge 

(cfs)

7.2

5.8

5.8

6.4

7.2

6.4

5.8

5.8

5.2

5.2

5.8

8.0

6.4

6.4

5.8

6.4

4.8

4.3

3.5

3.5

3.5

3.5

3.5

2.9

1.0

1.0

.7

.7

.6

.6

.5

134.2

Suspended sediment

Mean

tration

(ppm)

2

3

2

_-

"

Tons

per

day

T

T

T

0.1

T

T

T

T

T

T

2

2

1

1

1

.1

1.4

AUGUST

0 0

JUNE

Suspended sediment

dis- Mean

charge

(cfs)

.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

tration 

(ppm)

1

Tons

per 

day

T

T

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

--

0.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.0

SEPTEMBER

0 0

Total load for year (tons) .............................................................. 2134.4

T Less than 0.05 ton.
SALINAS RIVER BASIN Continued 

11-1499. SAN ANTONIO RIVER NEAR LOCKWOOD, CALIF. Co

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Dec. 31.. .........

Time 

(24 hour)

1235 

1445 

1415

Water 

temperature

(°F)

55 

47 

48

Sampling 

point

Discharge

(cfs)

230 

E 110 

651

Sediment 

concentration 

(ppm)

330 

235 

269

Sediment 

discharge 

(tons per day)

205 

69.8 

473

Perc

0.002 0.004 0.00

E Estimated.

11-1500. SAN ANTONIO RIVER AT PLEYTO, CALIF.

LOCATION. Lat 35°51'55", long 120°59'30", at gaging station at old townsite of Pleyto, Monterey County, 

west of Bradley.

DRAINAGE AREA. 284 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1962 to July 1966 (discontinued).

Water temperatures: February 1961 to September 1965.

Sediment records: February 1961 to September 1965.

__ Chemical analyses, in parts per million, October 1965 to Ju

Date 

of 

collection

Nov. 2, 1965. .... 

Jan. 4, 1966. ....

July 19. .........

Mean 

discharge 

(cfs)

Silica 

(SiQ.)

27

Iron 

(Fe)

Calcium 

(Ca)

52

Magnesium 

(Mg)

16

Sodium

(Na)

22 

12 

13 

19 

22

Potassium 

(K)

1.5

Bicarbonate 

(HCOj)

187 

136 

157 

182 

176

Carbonate 

(CO,)

2 

8 

4 

0 

8

Sulfate 

(S04 )

65

Chloride 

(Cl)

16 

7.0 

8.4 

11 

13

Fluorlde 

(F)

Nitrate 

(NO,)

0.2

B

ro

(B

0
SALINAS RIVER BASIN Continued 

11-1505. SALINAS RIVER NEAR BRADLEY, CALIF.

LOCATION. Lat 35°55'40", long 120°52'00", at gaging station 6 miles northwest of Bradley, Monterey Co

DRAINAGE AREA. 2,536 square miles.

RECORDS AVAILABLE. Chemical analyses: August 1962 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 12, 1965. . . .

Jan. 5, 1966. .... 

Feb. 11. .........

June 15. .........

Sept . 1 ..........

Mean 

discharge

(cfs)

260 

244 

16 

334 

206

88 

16 

466 

288 

511 

490

Silica 

(S1Q,)

12 

12

Iron 

(Fe)

Calcium 

(Ca)

30 

31

Magnesium 

(Mg)

15 

15

Sodium

(Na)

12 

14 

49 

40 

43

58 

63 

13 

12 

12 

11

Potassium 

(K)

1.3 

1.3

Bicarbonate 

(HCOS)

134 

146 

225 

211 

253

254 

226 

139 

134 

128 

143

Carbonate

(ccg

6 

4 

8 

12 

6

14 

12 

0 

2 

4 

0

Sulfate 

(SO,)

40 

40

Chloride 

(Cl)

7.6 

7.8 

32 

32 

36

44 

54 

8.9 

7.3 

7.0 

5.8

Fluorlde

(F)

Nitrate 

(NO

0.

.
SALINAS RIVER BASIN Continued

11-1518.7. ARROYO SECO NEAR GREENFIELD, CAL

LOCATION. Lat 36°14'15", long 121°28'50", at gaging station 0.6 mile downstream from 

Greenfield, Monterey County. 

DRAINAGE AREA. 113 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1962 to September 1966.

Sediment records: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Minimum, 39°F on several days during December

Sediment concentrations; Maximum daily, (estimated) 76 ppm Jan 30; minimum daily, 

Sediment loads: Maximum daily, 210 tons Dec. 28; minimum daily, 0 tons Aug. 25-27. 

EXTREMES, 1962-66. Water temperatures (1964-66): Minimum, 39° F Dec. 18, 20-24, 1965

Sediment concentrations: Maximum daily, 2,720 ppm Jan. 31, 1963; minimum daily, no 

Sediment loads: Maximum daily, 61,200 tons Jan. 31, 1963; minimum daily, 0 tons Aug

REMARKS. No flow Aug. 25-27, 1966.

Temperature (°F) of water, water year October 1965 to

Month

November ..... 

December .....

January. .......

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

June ..........

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

September .....

S

Day

1

69 

71

2

53

4 r

70

75

3 4

70

-

5

-

76

6

55

68

7

78

8 9

54

65

74

10

70

,2

45

-

78

70

13

54

71

14

54

-

70

15

54

44

16

55

40

70

70

17

54 

40

45

18

54 

39

73

19

53

40

45

68

20

54 

39

75

~

2

5

3

-

7
QUALITY OF SURFACE WATERS, 1966

SALINAS RIVER BASIN Continued 

11-1518.7. ARROYO SECO NEAR GREENFIELD, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

..

..

 

,.

..

..

,.

1 ..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Suspended sediment

Mean h

discharge

(cfs)

5.1

4.3

3.9

3.5

3.7

3.9

3.9

4.0

3.9

4.0

4.2

4.5

4.9

«.5

4.5

4.9

5.4

5.8

5.8

5,8

5.8

5.6

5.3

4.7

3.9

3.9

3.9

4.0

4.0

4.2

4.0

139.8

598

Mean

tration 

(ppm)

__

per 

day

1

1

_

1

~

3

 1

"1

1

1

__

1

2

5 .1

1

- 0.6

JANUARY

12 19

440 7 8.3

351

290

260

223

203

187

173

159

147

137

130

120

ZZ2

105

98

93

89

85

81

78

75

72

70

68

68

65

135

605

282

5599

2.8

 i 1.6

.7

1 .6

4

4

3

1

2

2

5

3

2.2

2.0

1.9

1.3

. ^

.7

.7

1.6

9

.9

4 1.1

3 .8

4 ! 1.0

2 .5

3

3

8

1

1

1

1

1

26

76

3

.7

.6

1.6

.2

.2

 2

.2

.2

K 45

K 160

2.3

260.2

NOVEMBER

Mean

discharge

(cfs)

4.0

4.3

4.5

5.1

5.3

5.3

5.4

5.6

6.1

6.8

7.4

8.0

29

159

84

184

Suspended sediment

Mean 

concentration 

(ppm)

1

4

1

5

38

12

48

490 34

576

238

134

97

102

348

489

387

252

185

1*3

118

100

--

4162.8

27

9

1

1

5

32

31

10

4

Tons 

per 

day

T

T

T

T

T

0.1

T

T

T

T

T

T

.4

S 2Z

2.7

S 29

DECEMBER

Suspended sediment

Mean ^ - T

discharge 

(cfs)

Mean 

concentration 

(ppm)

85 1

Tons 

per 

day

0.2

74 1 .2

67 j 5 .9

61 1 .2

57

53

50

47

45

44

45

2 ! .3

27

8

4

3

5

4

107 13

80 8

63 14

3.9

1.1

.5

.4

.6

.5

S 4.3

1.7

2.4

58 , 14 2.2

54 3 .4

K 94 51

S 49 48

5.8

.4

.3

K 3.9

K 34

K 47

10

2.7

3 1.5

3

2

46

44

42

42

40

3 ' .4

1 .1

3

2

4

6

1

Z75 17

116

87

4

2

1.2 488 39

.4

.2

.5

.7

.1

K 12

1.3

«5

K 210

.6 1040 56 K 190

.5 910

 ,. 850

304.4

FEBRUARY

252

220

Z93

240

327

360

7

3

9

7

4

302 ' 1

265

230

207

S 4.7

1.8

1.0

K 8.3

K 6.6

3.9

5013

37 91

18

-

41

568.5

MARCH

94

101

1

1

94 1

0.3

.3

.3

90 .2

89 ! «5

87 3 1 .7

.8 ' 83

.7 81

1 .6 78

.6

189 1

185

166

154

145

138

131

126

142

130

122

114

113

109

105

106

101

98

4970

1

.5

.5

 ' .4

1

1

6

4

1

1

1

 

 

.4

.4

.4

 4

.3

2.3

1.8

76

75

73

71

70

68

 .7

1.1

7

_

2

1.5

1.0

.6

.4

.4

4

.6

.7

66 .5

65 .4

63 .2

61 .2

60 1 .2

1.3 58

1.2 57

.9 , 56

.3

.3

.3

.3

:!

41.3

54

53

52

51

50

49

47

.2

1

__

1

 -

3

45

 2

.2

.1

.1

4l

 1

.1

.3

.4

.4

2117 13.0

S Computed by subdividing day.

T Less than 0.05 ton.

K Computed from estimated-concentration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SALINAS RIVER BASIN--Contimied

11-1518.7. ARROYO SECO NEAR GREENFIELD, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

APRIL MAY JUNE

Suspended sediment

Day

1..

2..

3..

4..

5..

6..

7..

8..

discharge

(cfs)

44

44

42

42

42

41

40

40

9.. 39

10..

11..

12..

13..

14..

53

43

39

38

37

15.. 35

16.. 32

17.. 32

18..

19..

20..

21..

22..

23..

24..

32

32

Mean _ T° 

(ppm)

_,

--

::

.2

,

,

12 1.

6 .

- 

6

.

j

1

2

.

.

3 .

7

4 .

2

1

1

32 1

32

32

31

31

25.. 28

26..

27..

28..

29..

30..

27

1

,

.

.

2

2

2 .

1

_ .

26 1 .

28

28 2

.

.

26 , .

31.. 

Total' 1068 8.7

JULY

1.. 2.7 5

2..

3..

4 . .

2.8 |

2.8

2.9 6

5.. 2.9

6.. 2.9 5

7.. 2.8

8..

9..

10..

11..

2.6 6

Suspended sediment j Suspended sediment

Mean 

discharge

(cfs)

24

23

22

22

22

23

22

22

22

22

22

22

20

20

18

18

18

17

Mean

(ppm)

2

day

0.1

discharge

(cfs)

Mean

tration 

(ppm)

Tons 

per 

day

11 2 0.1

2 .1 , 11 -- T

.1

2 , .1

 i .1

2

1

j

3

.1

.1

 \

10 1 T

10

8.6

7.9

8.2

8.4

 ( T

2

__

1

8.2

T

T

T

T

T

7.6 1 T

.1 .2 ! T

.1 .6

.2 .2

.1

 .1

2

4

16

t j

,1

.2

.1

.1

4

.0

.2

.6

4

__

 6 3

.6 

.1

.1

.1

.1

T

T

.6 T

15 1 T .7 3' T

14 T .2

13

13

13

12

T

1 T

3

.

12 .

.0

,3

.3

T

i,

4

.3

.5 1 12 2 . .25

T

T

. 1

T

T

.1

11 -- . .7 T

12

13

11

4 .

.2

.9

4 T

__

. , -,

546 3.1 190.8 1

T

1.6

AUGUST SEPTEMBER

2.2 1 ' 0.2 4

2.5

2.2

1.9

1.6

4 .3

4 .5

4

1.3

1.2

1.2 5

2.6 .8

2.7, -

.3

.2

5

5

.2

 1 2

.2

.4 6

.6 10 .4

3.2 4 .4

12.. 3.9

13.. 3.9

14.. | 3.9

15.. 3.7

16..

17..

18..

19..

20..

21..

22..

23..

3.5

3.1

",

*

__

2.6 3

2.4

2.1

2.0

1.6

1.3

24.. 1.2

25..

26..

1.0

.8

2

__

7

5

27.. .6 4

28.. .5

29..

30..

31..

Total

.4 1

.7

1.9

72.0

.4

.4

.4

.4

.3

.2

.2

~;

7

_

16

.6

.6

.6

.6

__

i,

5

~

.7 3

. 8 ' i

' .8

6 .8

.2 1.0

.2

.2

.2

.1

0

0

0 ,

. 1

.1

.1

.2

0.9 1 19.8

4

1.22

g

g

~

.2

.1

_

2

.0

.0 i

.02

_!

..

 ~

. 0

.0

0.3

.0

.0

__

9

1

20.3 0.2

Total load for year (tons) . . . . ....................................................... 1202.8

T Less than 0.05 ton.
SALINAS RIVER BASIN Continued

11-1518.7. ARROYO SECO NEAR GREENFIELD, CALIF. Cont

riodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Nov. 14, 1965. .... 

Nov. 18. ..........

Time 

(24 hour)

1200 

1230

Water 

temperature

(°F)

54 

54

Sampling 

point

Discharge 

(cfs)

290 

530

Sediment 

concentration 

(ppm)

47 

36

Sediment 

discharge 

(tons per day)

36.8 

51.5

Per

0.002 0.004 0.0
PACIFIC SLOPE BASINS IN CALIFORNIA

bO 3

rt o

bOU

bo a,

O O, < 

r-H CO *

< IB 05 '58

§S

3 i

c&

1

c2

So"

S rt

Is

5

1?

o ^

23 u

t

C

C.

3

t

i

o.

Illj"

13 sEl 0*^

a i p. c 42

I 'S §3 2

C H B «

I S| a

sflM

§ fe|*

JMi

2 >, §

A °"e

0 offf CQ u - 

sfl

3 2 sr

 s

So 2" 

u

ft

jjsf

.!. e °jo" 

85* °

si|g

|aS"

p i | 'be

a|g

11

Id

8i>

III

a s

CD O ** ^ N 

00 00 00 00 00

 * m o o o

00 U) O I> 00

(N to en o

w in o oo ^ 

o co en en o

CO (N CO N CO

1 1 1 1 1 

1 1 1 1 1

1 1 1 1 1 

1 1 1 1 1

1 1 1 1 1 1 1 1 1 1

O O N rH rH

O

1 1 1 1 1

S9S3S

: : i : :

H H

CO (N CO N (N

1 1 1 1 1

00 U) Ol O N

I ! ! ! !

1 1 1 1 1

1 1 1 1 1

1 1 1 1 1

*

m N N o o

00 N CO I>

in - .10 .

H . rH .

rH rH t^ rH rH

±> > U C 0 

O O 0) ri 0) O Is Q ""3 fe

C-M^M^

O O O O O O 

CO (N * U) (N * 

(N U> O CVI rH (N

H O CO t- t- 00 

O CO 00 CO 

rH

(N * O * CO O

co in t~ o ^ o

II 1 1 00 

1 1 O | | to

CO

1 I tO 1 1 CO 

1 1 00 1 1 O

O rH

i I ° I ! So

CO f

NrHO^COtO

i i 10 i i irt

1 1 CO 1 1 M

g O ^ l> iO l>

i-H i-H -H i-H

1 1 CD 1 1 M 

1 1 lO 1 1 lO

r-4

O O O O O O

O H ^ N 01 N

1 1 to 1 1 O 

1 1 CO 1 1 H

o <y> 1$ o »o H

1 1 H 1 1 0) 

1 1 PJ 1 1 CO

t 1 O) 1 1 lO

1 1 n 1 1 °°

«^ nc^co

fl^ t^ O CM T-< 

CO

rt h S"? *3 &
PAJARO RIVER BASIN 

11-1540. UVAS CREEK NEAR MORGAN HILL, CALIF.

LOCATION. Lat 37°01'00", long 120°40'05", downstream from Uvas Dam at the outlet, 0.6 mile downstrea

Hill, Santa Clara County. 

DRAINAGE AREA. 30.4 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Nov. 10, 1965. . . . 

Jan. 12, 1966. . . .

Sept . 7 ..........

Mean 

discharge 

(cfs)

Silica 

(S10J

15 

18

Iron 

(Fe)

Calcium 

(Ca)

30 

45

Magnesium 

(Mg)

18 

21

Sodium

(Na)

11 

9.2 

10 

10 

12 

13

Potassium 

(K)

0.9 

1.4

Bicarbonate 

(HCOj)

194 

153 

152 

163 

176 

220

Carbonate 

(CO,)

2 

2 

5

1 

6 

0

Sulfate 

(S04 )

28 

32

Chloride 

(Cl)

5 2 

6.0 

6.0 

7.0 

7.0 

8.0

Fluorlde

(F)

Nitrate 

(NO,

1.0

A Calculated from determined constituents.
PAJARO RIVER BASIN Continued 

11-1565. SAN BENITO RIVER NEAR WILLOW CREEK SCHOOL, 

LOCATION (revised). Lat 36°36'34", long 121 D 12'07", at gaging station 1.3 miles downstream from Willo

10 miles northwest of San Benito, San Benito County. Prior to Oct. 1, 1965, at site 0.9 mile downs

DRAINAGE AREA. 249 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Chemical analyses, in parts per roilli( in, water year October 1965 

Date 

of 

collection

Nov. 2, 1965. ....

May 9

Sept. 2. .........

Mean 

discharge 

(cfs)

0.2 

17 

40 

1.8 

.3 

.1

Silica 

(SIQJ

3.2 

17

Iron 

(Fe)

Calcium 

(Ca)

13 

38

Magnesium 

(Mg)

103 

115

Sodium 

(Na)

246 

109 

48 

163 

205 

241

Potassium 

(K)

4.3 

5.8

Bicarbonate 

(HCOS)

504 

462 

431 

408 

468 

510

Carbonate

(ccg

26 

28 

26 

16 

28 

27

Sulfate 

(SO,)

284 

389

Chloride 

(Cl)

208 

72 

26 

119 

160 

170

Fluoride 

(F)

Nitrate 

(NO,)

0.0 

. 7
PAJARO RIVER BASIN Continued

11-1590. PAJARO RIVER AT CHITTENDEN, CALIF.

LOCATION. Lat 36 0 54'01", long 121 0 35'48", at gaging station on State highway bridge in Salsipuedes Gr

southeast of Chittenden, Santa Cruz County, and 2.3 miles downstream from San Benito River. 

DRAINAGE AREA. 1,186 square miles. 

RECORDS AVAILABLE. Chemical analyses; October 1953 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 12, 1965. . . .

Jan. 13, 1966. . . .

Sept. 15. ........

Mean 

discharge 

(cfs)

3.7 

34 

18 

44 

75

26 

16 

20 

6.4 

4.4 

.2

Silica 

(S1Q,)

21 

28

Iron 

(Fe)

Calcium 

(Ca)

136

83

Magnesium 

(Mg)

51 

67

Sodium

(Na)

100 

66 

98 

80 

71

85 

82 

100 

120 

160 

265

Potassium 

(K)

2.9 

4.1

Bicarbonate 

(HCO,)

403 

444 

398 

300 

290

370 

386 

434 

464 

522 

504

Carbonate

(ccg

20 

6 

22 

4 

0

4 

12 

8 

16 

4 

8

Sul/ate 

(S04 )

242 

113

Chloride

(CD

96 

74 

100 

78 

70

90 

81 

85 

106 

158 

371

Fluoride 

(F)

Nitrate 

(NO

17 

1.6
SOQUEL CREEK BASIN 

11-1600. SOQUEL CREEK AT SOQUEL, CALIF.

LOCATION. Lat 36°59'29", long 121°57'17", at gaging station, 0.2 mile upstream from highway bridge in 

stream from Bates Creek. 

DRAINAGE AREA. 40.2 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

Water temperatures: January to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Nov. 10, 1965. . . . 

Jan. 11, 1966. . . .

Sept . 7 ..........

Mean 

discharge 

(eta)

3.5 

25 

14 

5.8 

1.5 

1.6

Silica 

(SiQ.)

28 

42

Iron 

(Fe)

Calcium 

(Ca)

79 

77

Magnesium 

(Mg)

24 

24

Sodium 

(Na)

49 

36 

43 

52 

45 

43

Potassium 

(K)

4.2 

5.0

Bicarbonate 

(HCOS)

250 

188 

202 

241 

224 

227

Carbonate 

(CO,)

2 

2 

12 

4 

12 

10

Sulfate 

(S0 4 )

117 

101

Chloride 

(Cl)

80 

34 

43 

60 

58 

54

Fluoride

(F)

Nitrate 

(NO,)

0.2 

.2

Temperature (°F) of water, January to September 

Day

M

M 

Febr

M

M 

March

Ma

Mi

APr,l

Ma 

M

May 

M 

M

M

_ -

jary 

aximum ....

inimum ....

aximum ....

ch

aximum ....

inimum ....

il

aximum ....

inimum ....

laximum ....

inimum ....

1

51

52

49

A3

54

77

55

ust

inimum .... _

tember

,\, .

49

57

48

6?

52

78

57

52

5 6 7 8 9 , 10 [ 1 1 12

49 50

46

50 49

47 45

AO

55

61

58

59

56

7?

55

52

52

49

60

56

73

54

52 i 51 50 50 50

\

53 54 ,54 | 55 '56

51 52 52 53 54

58 69 69 60 '66

56 54 57 56 54

76 76 166 j 63 |73

54 57 58 i 58 57

48 

40 

50 50

65 56

53 51

68 69

55 55

73 71

58 (57

1

13

50

61

14 15

52

16 17

42 , 43

49 50

64

53 54

70 73

63

52

76

52|54 55

73

58

73

53

73

54

 59 59

limmum .... 61 1 60 60 6C

59

60

59 , 61 60 59 60 61 60

61 61 58 59 58 57 j54

60 60 59

55 55 [55

40 40

18 19

42

50 (51 52

62

49

74

56

74

54

60

46

ftl

59

73

54

40

53

59 61

48 50

68

55

74

56

70

52

76

20

39

53

60

47

71

52

74

58 59

21

52

6?

47

71

52

68

59

,

60 61 61 61 60

56 57 60 56 58

60 

58 
SAN LORENZO RIVER BASIN 

11-1605. SAN LORENZO RIVER AT BIG TREES, CALIF

LOCATION. Lat 37°01'40", long 122°03'30", at Sequoia Picnic and Camp Grounds at Big Trees, Santa Cru

tion, and 4 miles north of Santa Cruz. 

DRAINAGE AREA 111 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966 (discontinued). 

Water temperatures: May 1965 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 11, 1966. . . .

Apr. 13..........

Sept. 13.. .......

Mean 

discharge

(cfs)

18 

18 

33 

110 

118

84 

49 

31 

22 

16 

11

Silica 

(S1Q.)

22 

24

Iron 

(Fe)

Calcium 

(Ca)

40 

41

Magnesium 

(Mg)

8.5 

7.5

Sodium 

(Na)

21 

22 

16 

18 

19

12 

21 

21 

21 

24 

22

Potassium 

(K)

1.6 

1.9

Bicarbonate 

(HCOJ

136 

144 

183 

112 

117

121 

132 

135 

136 

138 

138

Carbonate 

(COJ

4 

2 

4 

0 

0

2

0 

0 

5 

2 

0

Sulfate 

(S0«)

43 

34

Chloride 

(Cl)

22 

21 

10 

1« 

18

18 

20 

20 

22 

24 

24

Fluoride

(F)

Nitrate 

(NO

0.8 

1.5
PACIFIC SLOPE BASINS IN CALIFORNIA

11 

II

m 40 «o to 

m «m « in

I «m I

ii ii ii ii ii ii m r- «» » «ooo ;; i; r-.H

II Ii i I ll ii II om m m o m l l i i o«

ii ii ii ii ll ii * o r- » oo II ll oo

II || Ii ii ii II or. mm r-o II II oo

ll ii ii i i o r- |i «f r- oo m o o I i l I

II II II II in 4 I I o in mm r-o l I II

ll ii it ii oo ll mm «f 40 o a i j I l

II II ll II m<f I I om om r-m l 1 II

II II II II O40 II O40 4000 O* O> II II OO

II II II II m* ii om om om i I II - -

ii i; ii ll 05 ll or- r-r- o-a | l i; t \ II ll I i m* I I om om om II l I

ll ii ii ii mo ii o o r- o «» oo 11 II _ __

II ll II II mm i l o in om om i l II o in

|l ii ii ii * N ii * m r-r- » a l I ll

I I ll ll II mm I I o m om o in l I i I

|| || ii i | mo | i CM* oo <M- i i i i o r- II II || i I mm I l om om o in l l II om

ll || | i || H«D | | CM PJ PJ r- r- o.

I i I I I l II m» II om om om

II ii ii ii n9> ii <Hm r-oo aoo ll II op i I Ii ll ll in* l l om om oo I

ll ii ii ii ooo l i rtm r-r- oo l

II ii ii ii m* I I om o m r-o l

II || » « II 9>m mm oo |

I i II » » I I mm om r-o I

II ii r-« ll oo * m o> o o i

II ii ** l i om om «o r-1

II ii i» * ll «o * * o -< o< II II <r * l I om om oo r-i

II II r-* II mm mm o-fsi <ri

II II r-» I I CM m CM * o IH e> (

ll ll » > I I om o m r-o 01

ll ii w m it H CM * o no ovi

II II »* I I om om r-o 01

i ! I I ! ! I I 5*

I 1 ! I ! I ! I m? i I om om om r-o

_________________om om om r-o ii oo

ll ii o» I | CM o *o or- off- i i »-m

II II m« II om «m om r-m II OO

II II N0 II "" *"" S'" S2 II I

II II mm I I mm om om r-o I I I

	mm o o Ii I 

	r-o i I I

	O m o m_____________

	» *> I I 

	o m ll

II i i i i II II I I SS Sm tZ gS !I

j I I ! j ! I I ! I I I 2m S£ JK SS j |

ee ee u ee ee ee ee ee ee ee ee se^ee

L.eiJ> 11| e 1 ^ee e-el el ee ee ie le le^ee g'Sis s i! g'i;s s'iis l'i.s-s'i:i~'i:s ^'iJ u 'i:s ^'i:§ |i:§ § i;s
PESCADERO CREEK BASIN 

11-1625. PESCADERO CREEK NEAR PESCADERO, CA

LOCATION. Lat 37"15'40", long 122°19'40", temperature recorder at gaging station on 

3.0 miles east of Pescadero, San Mateo County, and 5.3 miles upstream from mouth. 

DRAINAGE AREA. 45.9 square miles.

RECORDS AVAILABLE. Water temperatures: April 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F July 22-24, 31; minimum, 35°F 

EXTREMES, /pril 1965 to September 1966. Water temperatures: Maximum, 71°F Aug. 9, 

lajxmxi&f nyL±j. JL*I

Dec. 16, 1965.

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

Minimum ....

November 

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

46

44

47

44

49

48

49

48

58

54

62

53

__

__

67

58

69

60

66

60

2

45

44

44

42

49

46

48

46

59

52

62

54

__

 

68

58

68

60

66

M

3

45

44

45

42

50

48

47

44

60

54

_

_

67

56

69

60

66

60

4

46

44

48

45

52

50

46

44

58

56

64

54

63

36

69

60

66

60

5

46

44

50

48

52

51

49

45

60

56

62

54

68

58

69

61

65

61

6

45

43

50

50

52

31

51

48

57

55

60

56

66

59

69

58

66

61

7

44

42

50

48

51

47

52

50

59

54

64

56

66

59

68

60

66

62

8

43

41

31

50

48

45

51

50

61

56

63

58

66

58

68

59

65

59

9

46

43

50

48

48

45

51

50

57

56

64

57

68

58

68

60

65

59

10

45

43

48

46

49

47

32

51

58

55

65

58

69

61

70

61

63

61

11

34

51

45

43

46

44

48

44

52

49

60

56

66

56

64

60

69

62

64

60

12

52

51

46

44

46

43

48

46

51

50

59

56

66

55

62

60

70

62

62

58

13

53 

52

44

42

44

43

47

44

53

51

59

54

68

57

65

58

69

61

62

58

14

54 

52

42

40

45

43

46

43

54

52

59

52

69

58

67

58

69

61

62

55

15

54 

53

40

38

45

44

45

43

54

52

61

53

68

60

69

60

68

59

62

54

Day

16

54

54

39

37

45

44

45

42

54

50

62

54

64

60

69

60

66

60

62

54

17

55

54

38

36

44

43

45

42

50

46

59

55

67

58

70

60

70

61

65

57

18

54

53

36

35

43

41

47

45

50

46

56

54

68

58

68

61

69

61

63

61

19

54

52

39

36

43

42

49

47

53

50

60

54

69

58

70

61

67

61

64

59

20

53

52

38

36

42

41

50

47

51

48

59

52

66

58

70

61

64

61

63

58
PACIFIC SLOPE BASINS IN CALIFORNIA

COLHA CREEK BASIN 

11-1627.2. COLHA CREEK AT SOUTH SAN FRANCISCO, CALIF.

LOCATION. Lat 37°39'14", long 122°25'31", at gaging station in Buri Buri Grant, in Orange Memorial 

Park, 1.0 mile southwest of South San Francisco Post Office, San Mateo County.

DRAINAGE AREA. 10.9 square miles.

RECORDS AVAILABLE. Sediment records: October 1965 to September 1966.

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 6,140 ppm Feb. 1, 1966; minimum daily,

(estimated) 5 ppm on many days.

Sediment loads: Maximum daily, 5,750 tons Dec. 28, 1965; minimum daily, less than 0.05 ton on 

many days.

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9*.

10..

11*.

12..

13..

14..

15..

16..

OCTOBER

Mean

discharge

(cfs)

0.5

.5

.5

.5

.4

.4

.4

.4

.4

 4

.4

.4

 6

.6

.6

.6

17.. .6

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

 6

.6

.6

16.6

Suspended sediment

Mean 

concentration

(ppm)

Tons 

per 

day

0.5

NOVEMBER

Mean

discharge

(cfs)

0.6

.7

1.2

.9

.6

.7

15

4.4

.3

.3

.3

59

98

49

6.0

10

92

27

1.4

1.2

.7

1.4

26

*0

15

1 2

9

6

6

6

455.6

Suspended sediment

Mean 

concentration 

(ppm)

_

--

_

eeo

690

3270

3580

3*10

511

230

3060

1800

__

_

101

2200

2900

1100

_

~

-

Tons 

per 

day

T

T

T

T

T

T

K 40

K 20

.1

.1

T

K 1*70

K 2350

K 1560

K 8.9

K 13

K 1880

S 390

.2

.1

T

K 2.7

K 250

K 660

K 76

1 1

7

4

4

3

8724.2

DECEMBER

Mean

discharge

(cfs)

0.6

.6

.6

.6

.6

 6

.4

.4

.6

.4

28

Suspended sediment

Mean 

concentration 

(ppm)

151

__

--

__

__

1590

5.3 1040

.7 i 

.7 i 

.7

.7

.7

__

.7 -

.7

.7

.7

.7

.6

53

11

1.2

.9

160

61

53

22

408.4

__

314

2790

1700

_

5670

4770

3780

1*70

-

per 

day

0.2

.2

.2

.1

.1

 I

T

T

T

T

K 327

K 39

.

.

t

.

,

.

t

.

.

K 1100

K 100

1.3

.5

S 5750

S 13*0

K 880

K 133

9678.8

S Computed by subidiving day.

T Less than 0.05 ton.

K Computed from estimated-concentration graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

COLMA CREEK BASIN Continued

11-1627.2. CQLMA CREEK AT SOUTH SAN FRANCISCO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1*.

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

19..

16*.

17..

18..

19*.

20..

21..

22..

23..

24..

29..

26*.

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

9..

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..

Total

JANUARY

Mean 

discharge

(cfs)

5.3

3.0

3.0

64

76

t.2

4.6

3.4

2.5

2.1

1.8

1.8

1.4

1.4

1.2

1.2

.9

.9

.9

.9

.9

1.8

.9

.9

.7

.7

.6

.6

118

31

6.0

346.6

Suspended sediment

Mean 

concentration 

(ppm)

_-

3520

4430

292

 

_-

9690

2570

620

Tons 

per 

day

5.7

2.0

1.2

K 863

K 1480

11

1.9

.9

.6

.5

.3

.2

.1

.1

T

T

T

T

T

T

T

K 3.1

.2

.2

.1

.1

T

T

K 4120

K 4M

10

6997.4

APRIL

0.4

.6

.6

.6

.6

.4

.4

.4

3.7

.9

7.4

1.9

.7

.7

.9

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

36.7

__

 

495

S22

275

 ~

 .

0.1

.1

.1

.1

.1

T

T

T

S 22

.5

S 42

S 3.2

.1

T

.2

.1

.1

.1

.1

T

T

T

T

T

T

T

T

T

T

T

 9.2

FEBRUARY

Mean 

discharge

(cfs)

80

6.7

45

59

8.2

». »

3.4

2.1

1.8

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.2

5.8

12

1.4

1.4

17

1.8

19

16

1.8

1.4

1.4

305.1

Suspended sediment

Mean 

concentration

(ppm)

6140

3320

3250

540

«

~

__

__

210

1400

_

1100

2690

2200

__

55

-

Tons 

per 

day

S 3640

5.4

S 804

S 1080

11

K 29

.7

.4

.3

.2

.2

.1

T

T

T

T

T

K 17

K 74

1.9

.8

K 139

1.7

K 396

K 334

3.9

.6

.2

6540.5

MAY

0.7

.9

.7

.9

1.2

1.2

1.2

1.2

3.6

.6

.2

.2

.2

.3

.2

.3

.4

.6

.2

.2

.2

.2

.3

.4

.3

.4

.4

.4

.2

.4

.4

18.6

740

T

T

T

0.2

.2

.1

.1

.1

K 17

.5

.1

T

T

T

T

T

T

.1

T

T

T

T

T

T

T

T

T

T

T

T

T

18.8

Mean 

discharge

(cfs)

2.1

1.2

.7

.7

.6

.6

3.3

 6

12

2.1

.9

.7

1.2

1.4

3.2

1.8

1.4

1.8

2.7

.6

.7

.6

.7

.7

.6

.6

.6

.7

.6

.6

.6

46.6

MARCH

Suspended sediment

Mean 

concentration 

(ppm)

107

 _

__

375

-_

950

__

352

__

 .

221

__

-_

--

_

-_

-_

118

-

Tons 

per 

day

K 1.8

 2

.1

T

T

T

S 13

 1

S 120

.9

 1

T

.1

 1

5 18

1.0

 3

 2

S 5.6

 1

.1

 1

 1

 1

 1

.1

 1

 1

.1

.2

.2

163.0

JUNE

0.6

.1

 2

1.0

.9

1.9

.6

.4

.3

.3

.3

 3

.4

.6

 4

.4

.6

.4

.4

 4

.4

.4

.4

.7

.7

 6

.6

.6

.6

.7

16.2

5

T

T

T

0.1

 1

1.0.1.1

T

T

T

T

T

T

T

T

T

1

T

T

T

T

T

T

T

T

T

T

T

T

1.1

8 Computed by subdividing day,

T Less than 0.05 ton.

K Computed from estlmated-concentration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

COLMA CREEK BASIN Continued

11-1627.2. CQLMA CREEK AT SOUTH SAN FRANCISCO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2».

3..

4..

5..

6 4 .

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

JULY

Mean

discharge

(cfs)

0.7

.4

.4

.6

1.3

.9

.4

.3

.3

.3

.3

.3

.4

.6

.6

.6

.6

.6

.(,

.7

.4

.4

 4

.6

 6

.6

.6

.4

.4

.4

.4

16.1

Suspended sediment

Mean 

concentration

(ppm)

__

--

~

 

70

174

_

~

-._

--

._

~

_

 _

- 

-

Tons 

per 

day

T

T

T

T

K 3.1

< 1.4

.1

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

5.4

AUGUST

Mean

digcharge

(cfs)

0.4

.6

.7

.9

.7

 6

.6

.6

.4

.4

.4

.4

.4

.4

.4

.4

.6

.6

.6

.6

.6

.6

.4

.4

.4

.4

.4

.4

.4

2.0

.3

17.0

Suspended sediment

Mean 

concentration 

(ppm)

233

Tons 

per 

day

T

0.2

.1

.2

.2

.1

.1

T

T JT

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

K 5.1

.1

6.4

SEPTEMBER

Mean

discharge

(cfs)

0.3

.4

.3

.4

.6

.4

.6

.6

.6

.4

.4

.4

.4

.4

.4

.4

.7

3.5

.6

.6

 6

.6

 6

.6

.6

 6

.7

.7

.7

.6

18.7

Suspended sediment

Mean 

concentration

(ppm)

__

 

_

 .

 -

 

_

_

677

_

30

20

20

20

20

10

10

10

~

Tons 

per 

day

T

T

T

T

T

T

T

T

0.1 JT

T

T

T

T

T

.1

K 21

.2

.1

.1

T

8 T

B T

B T

B T

B T

B T

B T

B T

22.3

Total discharge for year (cfs-days). 

Total load for year (tons)..........

1696.2

32228.3

T Less than 0.05 ton.

B Computed from estimated-concentration graph.

K Computed from estimated-concentration graph and subidiving day.
COLMA CREEK BASIN Continued 

11-1627.2. COLMA CREEK AT SOUTH SAN FRANCISCO, CALIF. 

Periodic determinations of suspended sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

Date of collection

NOT. 18............

Dec. 28............

Dec. 28. ...........

Feb. 1.............

Feb. 3.............

Aug. 5.............

Time 

(24 hour)

2145 

0625 

0650 

0930 

1520 

1715

2200 

0350 

0405 

0440 

0520 

0535

0615 

0840 

1045 

2145 

1500 

1535

1915 

0910 

1045 

1200 

0940 

1330

Water 

temperature 

(°F)

55 

55 

54 

56

49 

47 

47 

47 

47 

47

47 

47 

47 

48 

49 

49

49 

51 

51 

68 

58 

73

Sampling 

point

Discharge 

(cfs)

54 

109 

292 

27 

818 

328

49 

147 

198 

414 

680 

536

522 

46 

139 

7.4 

97 

167

56 

6.7 

1.4 

.6 

20 

.7

Sediment 

concentration 

(ppm)

2200 

2570 

11700 

3250 

19300 

11700

3440 

9400 

13900 

18400 

26100 

25000

20200 

4760 

8630 

663 

5380 

12300

3320 

2780 

55 

118 

6060 

110

Sediment 

discharge 

(tons per day)

321 

756 

9220 

237 

42620 

10360

455 

3730 

7430 

20570 

47920 

36180

28470 

591 

324 

13.2 

1410 

5550

502 

50.3 

.21 

.19 

327 

.21

Perce

0.002

22 

15

24

10 

18

16

40 

64

37

0.004

72 

30 

18 

74 

28

64 

11

20 

52

18

44 

71

47

0.008

36 

21

32

14 

28

21

56 

84

60
PACIFIC SLOPE BASINS IN CALIFORNIA

COLMA CREEK BASIN--Continued 

11-1627.22. SPRUCE BRANCH AT SOUTH SAN FRANCISCO, CALIF.

LOCATION.~Lat 37°38'46", long 122°25'15", at gaging station in Buri Buri Grant, 0.5 mile upstream 

from mouth, and 1.0 mile southwest of South San Francisco Post Office, San Mateo County.

DRAINAGE AREA. 1.68 square miles.

RECORDS AVAILABLE. Sediment recordsr October 1965 to September 1966.

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 3,040 ppm Dec. 28; minimum daily, no

flow on many days. 

Sediment loads: Maximum daily, 841 tons Dec. 28; minimum daily, 0 ton on many days.

REMARKS. No flow Oct. 1, 2, 18-25, 27, 28, Oct. 30 to Nov. 6, Nov. 9-11, May 11-13, 16, June 25-29, 

July 6, 29, Sept. 19.

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

it.

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

0

0

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.2

.1

.1

.2

.1

0

0

0

0

0

0

0

0

.1

0

0

.1

0

0

2.4

Suspended sediment

Mean 

concentration 

(ppm)

per 

day

0

0

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

0

0

0

0

0

0

T

0

0

T

0

0

0.2

NOVEMBER

Mean 

discharge

(cfs)

0

0

0

0

0

0

4.3

.3

0

0

0

17

20

11

.8

2.0

20

6.7

.1

.1

.1

.8

6.3

16

3.0

.2

.1

.1

.1

.1

109.1

Suspended sediment

Mean 

concentration 

(ppm)

~

_

540

333

- 

2020

2300

1260

270

2230

7»2

45

_-

201

820

2260

645

_

-M»

~

 

~

Tons 

per 

day

0

0

0

0

0

0

K 68

1C 1.0

0

0

0

K 305

K 260

K 168

.2

K 3.6

S 250

S 57

T

T

T

K 2.5

K 39

K 194

K 7.8

T

T

T

T

T

1356.2

DECEMBER

Mean 

discharge

(cfs)

0.1

.1

.1

 1

.1

.1

.2

.2

.2

.2

6.6

1.1

.1

.1

.2

.2

.2

.2

.2

 4

.2

.4

.6

24

5.9

.5

.5

43

16

14

3.7

119.5

Suspended sediment

Mean 

concentration 

(ppm)

38

__

- 

__

~

_

__

 

1180

333

_

m-

 

__

~

1*0

_M»

- 

2260

1130

__

__

3040

2400

2160

582

Tons 

per 

day

T

T

T

T

T

K 87

K 2.4

T

T

T

T

T

T

T

.1

.1

.1

.2

K 407

K 39

.1

.1

S 841

K 170

K 180

K 9.8

1737.2

S Computed by subdividing day.

T Less than 0.05 ton.

K Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

COLMA CREEK BASIN Continued

11-1627.22. SPRUCE BRANCH AT SOOTH SAN FRANCISCO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12. .

13..

14..

15..

16..

17..

18..

19..

20..

21..

22*.

23..

24..

25..

2«..

27..

28..

29..

30..

31..

Total

JANUARY

Mean 

discharge 

(cfs)

0.8

.2

.2

19

18

.a

.5

.4

.2

.2

.2

.2

.2

.4

.5

.6

.6

.6

.6

.5

.4

.4

.1

.1

.1

.2

.2

.2

31

4.8

.8

83.0

Suspended sediment

Mean 

concentration 

(ppm)

__

2870

1690

--

_

_-

~

50

~

47

~

2760

670

234

-

Tons 

per

day

0.2

T

T

S 171

K 196

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

T

T

T

T

T

T

K 538

K 13

S .6

920.6

APRIL

0.1

.2

.2

.2

.2

.2

.1

.1

1.8

.2

2.1

.6

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

~~

8.1

359

376

313

_-

--

~

_

--

--

T

T

T

T

T

T

T

T

K 13

.1

K 12

K 1.4

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

26.7

FEBRUARY

Mean 

discharge 

(cfs)

17

1.0

9.5

17

.8

1.8

.4

.2

.1

.2

.1

.1

.1

.1

.1

.1

.1

.6

4.0

.1

.1

2.2

.1

3.4

4.2

.2

.1

.1

__

63.8

Suspended sediment

Mean 

concentration

(ppm)

1920

1630

1720

~

~

~

~

 

__

~

92

569

~

«

720

640

74

--

~

~

Tons 

per 

day

S 300

.5

S 103

S 190

.2

.5

.1

T

T

T

T

r

f

K .6

K 12

T

T

2.4

T

K 23

K 51

.1

T

T

684.6

HAY

0.1

.1

.1

.1

.2

.2

.2

.2

.7

.1

0

0

0

.1

.1

0

.1.1.1

.1

.1

.2

.1

.1

.1

.1

.1

.2

.1

.1

.1

3.9

215

~

T

T

T

T

T

T

T

T

0.4

T

0

0

0

T

T

0

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

1.0

MARCH

Mean 

discharge 

(cfs)

0.6

.2

.2

.1

.2

.2

1.0

.2

3.6

.2

.1

.1

.1

.1

.2

.1

.1

.1

.7

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

9.3

Suspended sediment

Mean 

concentration

(ppm)

130

~

_

271

-_

485

__

~

~

~

430

_

__

«

~

_

26

~-

~

Tons 

per

day

K 1.1

T

T

T

T

T

K 3.9

T

K 22

T

T

T

T

T

T

T

T

T

K 4.5

T

T

T

T

T

T

T

T

T

T

T

T

31.8

JUNE

0.1

.1

.1

.2

.2

.2

.4

.1

.1

.1

.1

.1

.2

.2

.1

 1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

.1

3.3

24

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

0

0

0

T

0.8

S Computed by subdividing day.

T Less than 0.05 ton.

K Computed from estimated-concentration graph.
PACIFIC SLOPE BASINS IN CALIFORNIA

COLMA CREEK BASIN Continued

11-1627.22. SPRUCE BRANCH AT SOUTH SAN FRANCISCO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

JULY

1 !7~

Day

1..

2..

3..

* 

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

2*..

27..

28..

29*.

30..

31..

Total

Mean 

discharge

(cfs)

0.1

.1

.2

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

0

.1

.1

3.2

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per

day

T

T

T

T

T

0

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

T

T

0.2

AUGUST

Mean 

discharge

(cfs)

0.1

.1

.1

.1

.1

.2

.2

.2

.2

.4

.2

.2

.2

.2

.2

.2

.2

.2

.5

.<»

.2

.1

.2

.2

.5

.5

.2

.2

.2

.3

.1

6.9

Suspended sediment

Mean 

concentration 

(ppm)

29

~

Tons 

per 

day

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0.5

SEPTEMBER

Mean 

discharge

(cfs)

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.2

.2

.2

<2

0

.1

.1

.1

t \

.1

.1

.1

.1

.1

.2

 2

3.6

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

T

T

T

T

T

T

T

T

T

T

T

0.2

Total discharge for year (cfs-days). 

Total load for year (tons)..........

416.1

4760.0

T Less than 0.05 ton.
CQLHA CREEK BASIN Continued 

11-1627.22. SPRUCE BRANCH AT SOUTH SAN FRANCISCO, CALIF

Periodic determinations of suspended sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; L), dec

Date of collection

Nov. 17...........

Feb. 1, 1966......

Feb. 1............

Time 

(24 hour)

2115 

2345 

0715 

0420 

0505 

0720

Water 

temperature 

(°F)

57 

56

47 

47 

47

Sampling 

point

Discharge 

(cfs)

6.3 

22 

37 

88 

203 

9.8

Sediment 

concentration 

(ppm)

649 

5190 

4330 

9230 

9880 

2440

Sediment 

discharge 

(tons per day)

11.0 

308 

433 

2190 

5420 

64.6

Perc

0.002

22 

23 

12 

10

0.004

24 

28 

14 

12

0.00

28 

36 

16 

16
GUADALUPE RIVER BASIN

11-1680. LOS GATOS CREEK AT LOS GATOS, CALIF.

LOCATION. Lat 37°12'30", long 121°59'15", at gaging station 0.3 mile downstream from Trout Creek, 0.5 

south of Los Gatos, Santa Clara County. 

DRAINAGE AREA. 38.6 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 18, 1965. . . .

Jan. 12, 1966. .. . 

Feb. 14. .........

Apr. 13... .......

Hay 11 ...........

July 13... .......

Sept. 7 ..........

Mean 

discharge

(cfs)

3.3 

2.8 

45 

32 

43

2.2 

6.1 

14 

6.7 

1.7 

2.2

Silica 

(S1Q.)

15 

14

Iron 

(Fe)

Calcium 

(Ca)

55 

73

Magnesium 

(Mg)

20 

27

Sodium

(Na)

14 

15 

24 

13 

15

16 

17 

18 

21 

20 

23

Potassium 

(K)

1.6 

2.6

Bicarbonate 

(HCOJ

184 

198 

138 

141 

149

162 

166 

180 

195 

204 

245

Carbonate

(ccg

5 

0 

2 

3 

0

8 

2 

0 

5 

8 

0

Sulfate 

(S0«)

90 

112

Chloride 

(Cl)

9.0 

9. 0 

23 

8.9 

10

8.5 

11 

11 

12 

12 

14

Fluoride

(P)

Nitrate 

(NO,)

1.2 

.6
COYOTE CREEK BASIN 

11-1700. COYOTE CREEK NEAR MADRONE, CALIF.

LOCATION. lit 37°10'06", long 121°38'55", at gaging station near southeast corner of La Laguna Seca G

miles northeast of Hadrone, Santa Clara County. 

DRAINAGE J) IEA.--196 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to July 1966 (discontinued)

Chemical analyses, in parts per million. October 1965 to J

Date 

of 

collection

O<«. 18, 1965. .. .

Jan. 12, 1966.. . . 

Feb. 14. .........

Apr. 13. ..'......

July 14. .........

Mean 

discharge

(cfs)

59 

46 

37 

.1 

5.7

.1 

70 

75 

63 

.6

Silica 

(S1Q.)

9.3

Iron 

(Fe)

Calcium 

(Ca)

41

Magnesium 

(Mg)

16

Sodium 

(Na)

16 

17 

18 

18 

21

21 

22 

18 

19 

26

Potassium 

(K)

1.6

Blearbonate 

(HCO,)

165 

183 

182 

181 

194

175 

189 

172 

186 

240

Carbonate 

(CO,)

6 

0 

6 

4 

3

5 

6

4

a

8

Sulfate 

(S04 )

46

Chloride 

(Cl)

10 

10

11

14 

15

12 

10 

12 

14 

19

Fluorlde 

(F)

Nitrate 

(NO,)

1.4
PACIFIC SLOPE BASINS IN CALIFORNIA

 rH 0) n M i

K

Oi

C i A * O <* r7 !«««s

1 S IQ.cS

Sl^lll

|§ |yi

Is -a 1 &2 i « s o-gS C -S

^ IW

1!

11 s« ^iipa sa^ « ! l&i ft a

o § S tt> vi~ 

*!l

h S^p? h "-'

«»°B

o

^^5

|8

iifll

sii^f

£ii» P,S-g 

If

if-* II

sll

H

H

||l

i

o

nio TJ<

XXX

to CMTJ< h- n t- ain^t

05 !O IS

o

CM I-ITf in MM

in n n

05-* H

Ncq N

m h- cq

0

OtON

M H H

n cq ^t

H

omn 05 n« N cq cq

(O M O

n cq «

M

* cq cq H n

into'

(DO 

0)0)

0%!"" 

HH 0)

o q JD « 3 0

Q 'D fc.

to in * Mm

00 X 00 X X

H x no n

M H !O N» into t~ t~ »

h- o> cq NhH H H

 O1 O X !O cq N n cq cq N

h- t X O1 t 

M f* H X Cq

cq w M cq n

n

CD

o

 o1

CD 

O

hto

t

t 1OO) h- Tf

i-l

H 

0

h- o1 o o n H cq TJ" Tt to

t

00 h- !OO O1

'C'C N1O O

Tf X <1 I-l tO

W 01 M « CO

<! 

M

TfTfOXO N nio TJ< htn

fto

a>

rt

m in MH

 -in i-i

 n .*io 

n H o H «

K'K'>.|^ 

^Sl^
ALAHEOA CREEK BASIN Continued

11-1765. AHROTO VALLE NEAR LIVERMORE, CALIF. C

Temperature (°F) of water, water year October 1965 to 

October

November

December

Minimum .... 

January 

Maximum ....

Minimum .... 

February

Minimum .... 

March 

Maximum ....

April 

Maximum .... 

Minimum .... 

May 

Maximum ....

June"1""11 "1 

Maximum .... 

Minimum .... 

July

August

September

Minimum ....

1

43

50 

47

49

71 

57

71 

55

72 

58

2

42

49 

45

49

67 

57

74 

57

73 

57

3

45

47 

46

60 

57

71 

60

75 

59

4

46

49 

47

68

60

72 

58

75 

58

5

48 

46

53

64 

61

70 

58

73 

61

6

50

48 

47

56

60 

56

74 

58

65 

62

7

48

47 

42

56

63

54

73 

58

74 

62

8

47

48

47 

42

55

64 

56

68 

58

75 

62

9

48

46

48

42

52

62

54

66 

59

74 

61

10

48

44

49 

44

57

61 

54

66 

59

75 

61

11

47

43

49 

41

58

63

54

71 

59

79 

61

12

48

42

48 

44

55

63 

56

75 

58

81 

63

13

47 

48

43

50 

42

58

65 

53

72

60

86 

65

14

46 

48

43

50 

42

57

67 

54

72 

55

87 

67

15

44 

49

45

50 

42

58

70 

56

72

57

84 

69

Day

16

42 

47

43

50 

42

55

69 

56

73 

58

79 

68

17

42 

47

42

50 

42

57

65 

56

76 

56

80 

64

18

41 

46

42

51 

45

59

62

54

78 

60

83 

64

19

41 

46

43

52

47

59

65 

52

78 

60

81 

66

20

41 

45

41

51 

46

58

64 

52

77 

60

75 

64
PACIFIC SLOPE BASINS IN CALIFORNIA

ALAMHDA CREEK BASIN Continued 

11-1765. ARROYO VALLE NEAR LIVERMORE, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

0

17*

84

60

47

38

34

25

22

19

17

15

13

12

12

11

9.9

9.4

8.8

8.2

7.8

7.8

7.

7.

7.

7.

7.

6.

6.

7.

17

26

734.3

Suspended sediment

Mean 

concentration

(ppm)

-

Tons 

per 

day

0

JANUARY

22

__

11

_

22

 

_

33

35

41

35

~

56

18

7.3

2.8

1.9

1.6

.9

.7

.6

1.1

.6

.6

.6

.6

.6

.6

.6

.5

.6

.7

.7

.7

.7

.7

.7

.7

.6

.7

.8

2.1

2.5

107.8

NOVEMBER

Mean 

discharge

(cf.)

0

0

0

0

0

0

0

o

0

0

0

0

0.2

.3

.3

.2

1.0

7.0

10

9.0

6.0

3.5

4.0

10

30

27

18

13

9.9

8.5

157.9

Suspended sediment

Mean 

concentration

(ppm)

--

per 

day

0

0

0

0

0

0

0

0

0

0

0

0

T

T

T

T

T

0.4

.8

.6

.2

.1

.2

.8

4.0

3.3

1.9

1.2

.8

.6

14.9

FEBRUARY

26

27

22

20

21

32

49

40

32

26

23

20

18

15

13

13

12

12

12

8.8

7.4

9.4

11

11

12

12

13

13

 -

530.6

_-

30

__

16

_

4

7

 

6

_

13

--

--

-

2.4

2.3

1.8

1.6

1.6

2.0

2.1

1.2

.7

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

 4

 4

.6

.6

.6

.5

 -

 -

21.8

DECEMBER

Mean 

discharge

(cfs)

.5

.0

.0

.5

.8

.6

.6

.6

.2

.2

.8

 6

.0

.0

.2

.8

.5

.5

.2

.2

.5

.5

.5

.8

19

31

20

17

216

223

254

887.1

11

11

11

9.4

8.8

7.8

7.4

7.0

7.0

7.4

8.2

7.8

7.4

7.0

6.6

6.6

6.2

5.8

5.8

5.4

5.4

5.0

4.2

3.5

3.5

3.2

3.S

3.2

2.9

2.9

2.9

194.8

Suspended sediment

Mean 

concentration

(ppm)

__

--

__

15

._

_-

8

_

--

_-

__

_

59

--

_-

103

143

_-

122

266

126

144

Tons 

per 

day

0.4

.4

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

< 1

.1

.2

.4

.5

.5

.5

.5

.6

.6

.5

.6

K. 7.3

K 12

6.5

S 5.7

S 167

S 75

S 99

380.0

MARCH

_

10

_-

_-

9

_

--

--

6

__

_-

6

11

--

_-

_-

4

_-

_-

__

9

_-

_-

6

_-

7

-

0.3

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

T

T

.1

.1

.1

.1

T

T

.1

4.0

S Computed by subdividing day.

T Less than 0.05 ton.

K Computed from estlmated-concentration graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

ALAMEDA CREEK BASIN Continued

11-1765. ARROYO VALLE NEAR LIVERMORE, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4«.

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

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..

Total

APRIL

Mean

discharge 

(cfs)

2.6

2.9

3.2

2.9

2.9

2.9

2.9

2.9

3.2

4.2

3.5

4.2

3.5

3.5

2.9

3.3

3.2

2.8

2.4

2.4

2.0

1.8

1.8

2.0

1.8

1.6

1.6

1.6

1.6

1.8

79.9

Suspended sediment

Mean 

concentration 

(ppm)

--

12

18

9

__

23

13

20

8

16

--

10

11

17

18

17

16

21

11

10

11

10

~

"

Tons 

per 

day

T

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.1

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

T

T

T

T

3.1

JULY

0.2

.

.

.

.

.

.

.

.

.

.2

.3

.3

.2

.1

.2

.1

.1

.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

.0

5.3

48

--

--

104

76

46

32

25

--

13

--

32

_

--

--

~

_

"

T

T

o«i

.1

.1

.1

.1

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

0

0

0

0

0

0

0

0.8

MAY

Mean

discharge

(cfs)

1.8

.4

.4

.2

.2

.2

.1

.2

.2

.1

1.1

.9

.8

.9

1.1

.9

.7

.7

.6

.5

.6

.8

.6

.5

.6

.5

.6

.8

.8

.8

.6

28.2

Suspended sediment

Mean 

concentration 

(ppm)

_.

11

9

19

20

15

15

--

15

20

13

21

17

12

17

29

20

13

15

30

24

31

45

18

28

20

--

17

19

-

Tons 

per 

day

0.1

T

T

.1

.1

T

T

T

T

.1

T

.1

T

T

T

T

.1

T

T

T

T

.1

T

T

.1

T

T

T

T

T

T

1.6

AUGUST

0 0

JUNE

Mean

discharge

(cfs)

0.5

.4

.5

.6

.6

.7

.6

.5

.5

.5

.5

.6

.5

 3

.3

.3

.2

.3

.3

.4

.4

.4

.3

.2

.2

.3

 2

.2

.2

.2

11.7

Suspended sediment

Mean 

concentration 

(ppm)

11

_-

37

36

31

__

16

__

38

_-

38

__

25

.-

.-

108

100

40

_.

50

_-

49

43

Tons 

per 

day

T

T

T

0.1

.1

.1

.1

T

T

T

T

.1

.1

T

T

T

T

T

.1

.1

.1

.1

.1

T

T

T

T

T

T

T

1.6

SEPTEMBER

0 0

Total discharge for year (cfs-days) .................................................... 2629. 8

Total load for year (tons) ............................................................. 535.6

T Less than 0.05 ton.
PACIFIC SLOPE BASINS IN CALIFORNIA

8 5gf

a v >,

p S3 o

S a S3 J Ss-i

cs d a> 5

i a* s

3 1*1 i 5 n

° -i> S ° rt s lll

IO W !*

S Js

T 15*

o «

S* 

5-i 

§1(1) (U *a

1

4J

a

-H

0 

«

 o

0

Juspen

t 

a

T

a.

Sediment

ica

S 

%3

I

0

* °

5tu 

S

S

.S 

 a" 

1

indie ze 

I

t finer

!uA

discharge

concen- tration

50

3 'a?

3| 

3

hfi -*-*

 ^1 3,8

i °

Rl

(24 hour)

Date of collection

>>

o 

o 

o

N

8

I

o

o

IO 

N

o

IO

e 

o

N 

ID

C

o

H

d

ID 

H 

O

o

00

o 

o

d

^« 

d

G<l

O

o 

d

I" 

8

Q

!> 

J

,

F

» >

i

!8SH

1 0001 

1 0>00

O1O (»

OCKf.

10 *

IO OHot»

N

00 O (» 

H H H 

H m H

U5 O ID 

H«N 

N M

f * 00 

K5 *^l

o m o

0 I'M 

H'OH 'JOIN

"oid

MM CO

J U

§1
ALAHEDA CREEK BASIN Continued 

11-1790. ALAHEDA CREEK NEAR NILES, CALIF.

LOCATION. Lat 37°35'14", long 121°57'35", at gaging station 0.3 mile downstream from railroad bridge, 

DRAINAGE AREA. 633 square miles.

RECORDS AVAILABLE. Chemical analyses: February 1952 to September 1966.

Water temperatures: July 1956 to September 1966.

Sediment records: January 1957 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 78°F July 22; minimum, 41°F Dec. 1.

Sediment concentrations: Maximum daily, 1,250 ppm Dec. 29; minimum daily, 6 ppm on several days dur

Sediment loads: Maximum dally, 1,420 tons Dec. 29; minimum daily, 0.1 ton on several days. 

EXTREMES, 1956-66. Water temperatures: Maximum (1956-62, 1964-66), 88°F June 1, 1960; minimum, 37°F 

Sediment concentrations (1957-66); Maximum daily, 5,340 ppm Apr. 3, 1958; minimum daily, no flow on 

Sediment loads (1957-66); Maximum daily, 285,000 tons Apr. 3, 1958; minimum daily, 0 ton on many da

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 14, 1965. . . .

Jan. 11, 1966. . . . 

Feb. 14. .........

May 19. ..........

Aug. 5. ..........

Sept. 22. ........

Mean 

discharge

(cfs)

42 

44 

16 

16 

42 

12

11 

46 

36 

27 

44 

27

Silica 

(S1Q.)

11

7.6

Iron 

(Fe)

Calcium 

(Ca)

28 

30

riesium 

(Mg)

13 

19

Sodium

(Na)

52 

54 

71 

50 

126 

82

69 

42 

37 

52 

68 

70

Potassium 

(K)

1.8 

3-1

Bicarbonate

(Hccg

126 

126 

284 

245 

301 

204

249 

111 

119 

146 

106 

138

Carbonate

(ccg

0 

0 

0 

13 

0 

6

2

0 

0 

0 

0 

0

Sulfate 

(S04)

41

44

Chloride 

(Cl)

72 

85 

96 

60 

198 

105

88 

55 

46 

72 

104 

100

Fluoride

(F)

Nitrate 

(NO,)

1 .1 

 6
PACIFIC SLOPE BASINS IN CALIFORNIA

5!

<o in *

1^0 * fMO

in in «n 4- 4* trt \O h- f

CO O O -41 I
QUALITY OF SURFACE WATERS, 1966

ALAMEDA CREEK BASIN Continued 

11-1790. ALAMEDA CREEK NEAR NILES, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3*.

4«.

5..

6..

7..

8..

9..

10..

11*.

12..

13..

14..

15..

16*.

17..

18..

19..

20..

21*.

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

19..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

20..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

39

38

38

40

42

39

33

40

40

40

48

59

40

42

39

33

40

40

40

48

59

48

37

44

44

44

44

44

54

52

54

1342

Suspended sediment

Mean

concentration 

(ppm)

62

48

59

48

42

46

49

43

42

45

40

41

57

45

51

46

42

43

80

142

88

51

55

53

48

45

89

152

85

59

Tons

per 

day

6.5

4.9

4.9

6.4

5.4

4.4

4.1

5.3

4.6

4.5

5.8

6.4

4.4

6.5

4.7

S 4.8

5.0

4.5

4.6

S 12

23

11

5.1

6.5

6.3

5.7

5.3

S 12

22

12

8.6

227.2

JANUARY

380

187

109

85

75

52

37

30

22

18

16

17

17

14

12

9.2

8.0

8.3

8.2

9.2

9.3

9.3

7.6

7.2

7.1

7.9

8.9

9.3

13

230

69

1492.5

125

113

100

73

55

48

36

20

19

12

6

8

9

19

17

1*

12

_

9

-M»

13

18

6

 >

26

1050

433

128

57

29

17

11

6.7

3.6

1.6

1.1

.6

.3

.4

.4

.7

.6

.4

.3

.3

.2

.2

.3

.2

.2

.3

.3

.1

.2

.4

K 1.1

K 682

S 89

1033.5

NOVEMBER

Mean 

discharge

(cfs)

53

53

45

48

47

46

46

53

44

8.2

6.1

7.9

16

34

18

12

39

76

37

15

9.9

8.7

16

93

83

28

14

9.7

8.7

16

991.2

104

86

53

67

60

76

74

64

52

42

70

50

44

42

38

34

19

16

16

15

14

13

12

13

17

23

15

13

1142

Suspended sediment

Mean^

concentration 

(ppm)

56

49

32

44

90

64

61

77

70

31

26

27

34

120

200

162

238

587

204

36

21

17

155

857

451

183

103

63

42

57

Tons

per 

day

8.0

7.0

S 3.9

5.7

11

7.9

7.6

11

S 8.8

.7

.4

.6

K 1.7

K 13

9.7

5.2

S 27

S 130

S 22

S 1.6

.6

.4

S 12

S 281

S 108

S 15

3.9

1.6

1.0

S 3.4

709.7

FEBRUARY

458

461

175

130

160

174

312

100

70

50

221

68

21

15

14

19

27

21

20

16

9

16

17

17

27

30

24

22

«

S 160

S 114

25

24

26

S 38

S 65

17

9.8

5.7

S 45

9.2

2.5

1.7

1.4

1.7

1.4

.9

.9

.6

.3

.6

.6

.6

1.2

1.9

1.0

 8

596.8

DECEMBER

1 Mean 

discharge

(cfs)

32

23

15

11

8.2

5.9

5.2

6.4

7.1

8.0

8.5

16

9.7

6.8

6.8

7.1

7.5

9.3

9.5

9.6

8.2

7.2

7.4

7.0

71

23

12

105

390

420

535

1791.4

14

25

22

21

20

13

12

14

24

25

12

12

11

9.0

8.5

8.8

10

9.2

9.1

11

8.0

7.8

7.8

7.9

8.2

8.2

8.7

8.0

6.7

7.2

7.4

376.5

Suspended sediment

Mean

concentration 

(ppm)

89

68

42

34

24

21

15

10

10

12

13

14

20

9

15

13

7

6

_

6

8

824

490

260

467

1250

493

250

-_

MARCH

25

31

15

10

7

13

12

18

30

29

IB

16

14

16

18

24

29

24

19

24

22

17

17

18

18

20

27

23

18

18

18

Tons

per 

day

S 7.8

4.2

1.7

1.0

.5

.3

.2

.2

.2

.3

.3

.6

.5

 2

.3

.2

.1

.2

.2

 2

.1

.1

.1

.2

S 221

S 33

8.4

1C 443

1C 1420

S 523

S 372

3040.1

0.9

2.1

.9

 6

.4

.5

.4

.7

1.9

2.0

.6

.5

.4

.4

.4

.6

.6

 6

.5

.7

.5

.4

.4

.4

.4

.4

.6

.5

.3

.3

.4

20.3

S Computed by subdividing day.

K Computed from estimated-concentration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

ALAMEDA CREEK BASIN Continued 

11-1790. ALAMEDA CREEK NEAR NILES, CALIF. Continued

Suspended sediment, October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2».

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

8.1

7.8

12

12

11

7.7

8.0

8.5

8.1

15

11

11

11

10

16

2(

30

26

9.1

6.2

6.2

8.0

29

32

31

26

30

30

30

30

$08.7

Suspended sediment

Mean

tration

(ppm)

22

23

24

24

33

31

42

34

30

34

30

40

35

34

54

68

60

53

38

41

42

48

210

105

102

98

98

98

94

90

-

Tons

per 

day

0.5

.

.

.1

1.

,

.<

.

.

1.

.

1.

1.

.

K 3.

5.1

4.9

S 3.8

.9

.7

.7

1.0

16

9.1

8.5

6.9

7.9

7.9

7.6

7.3

103.3

JULY

36

37

38

36

35

35

34

35

48

52

44

24

24

27

41

43

43

43

42

40

40

40

42

43

43

33

19

26

44

46

48

1181

35

30

31

30

24

21

25

30

29

31

26

29

30

2*

37

70

75

61

55

58

67

66

44

65

54

48

44

26

27

28

30

-

3.4

3.0

3.2

2.9

2.3

2.0

2.3

2.8

3.8

4.4

3.1

1.9

1.9

1.9

4.1

8.1

8.7

7.1

6.2

6.3

7.2

7.1

5.0

7.5

6.3

4.3

2.3

1.8

3.2

3.5

3.9

191.5

MAY

Mean 

discharge

(cfs)

33

35

44

39

40

39

40

40

42

44

50

48

49

50

52

50

47

46

46

46

43

45

45

42

43

42

41

39

38

39

38

1335

Suspended sediment

Mean

concentration 

(ppm)

65

100

128

128

100

85

75

75

78

83

92

95

95

88

82

80

78

65

63

62

55

63

52

31

42

44

42

42

48

51

52

~

Tons

per 

day

5.8

9.4

15

13

11

0

1

1

8

9

12

12

13

12

12

11

9.9

8.1

7.8

7.7

6.4

7.7

6.3

3.5

4.9

5.0

4.6

4.4

4.9

5.4

5.3

262.0

AUGUST

46

45

44

44

44

44

45

44

43

43

43

44

44

44

43

39

27

31

44

44

4S

45

44

43

44

41

36

36

35

30

4.8

1248.8

37

32

40

49

28

28

37

34

27

25

23

21

21

22

27

24

17

18

18

14

16

13

18

20

20

16

11

11

8

7

9

4.6

3.9

4.8

5.8

3.3

3.3

4.5

4.0

3.1

2.9

2.7

2.5

2.5

2.6

3.1

2.5

1.2

1.5

2.1

1.7

1.9

1.6

2.1

2.3

2.4

1.8

1.1

1.1

.8

.6

.1

78.4

JUNE

Mean 

discharge

(cfs)

37

37

39

42

41

40

38

40

39

39

46

46

45

44

41

35

36

37

38

36

35

32

38

37

37

39

38

36

37

36

1161

Suspended sediment

Mean

tration 

(ppm)

49

49

46

47

46

41

40

39

57

48

89

63

47

41

61

49

44

46

38

40

43

38

45

40

42

45

36

43

52

40

-

Tons

per

day

4.9

4.9

4.8

5.3

5.1

4.4

4.1

4.2

6.0

5.1

11

7.8

5.7

4.9

6.8

4.6

4*3

4.6

3.9

3.9

4.1

3.3

4.6

4.0

4.2

4.7

3.7

4.2

5.2

3.9

148.2

SEPTEMBER

2.5

1.9

1.8

2.1

2.3

2.0

5.5

30

31

31

31

32

31

26

31

31

31

28

27

29

27

27

27

28

28

27

28

28

29

30

~

686.1

11

14

22

20

29

18

17

17

10

9

8

11

12

21

14

10

12

16

11

7

11

11

9

9

7

11

9

7

18

11

~

0.1

.1

.1

.1

.2

.1

.3

1.4

.8

.8

.7

1.0

1.0

1.5

1.2

.8

1.0

1.2

.8

.5

.8

.8

.7

.7

.5

.8

.7

 5

1.4

.9

21.5

Total discharge for year (cfs-days). 

Total load for year (tons).

13263.2

6332.5

S Computed by subdividing day.

K Computed from estimated-concentration graph and subdividing day.
ALAMEDA CREEK BASIN Continued

11-1790. ALAMEDA CREEK NEAR NXLES, CALIF. Conti

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, In distille

Date of collection

NOT. 24, 1965.....

Dec. 27...........

Hay 31............

Time 

(24 hour)

1535 

1200 

1340 

1345 

1250 

1350

Water 

temperature 

(°F)

53 

46

44 

47

66

Sampling 

point

Discharge 

(cfs)

142 

108 

12 

394 

67 

37

Sediment 

concentration 

(ppm)

1230 

1250 

268 

366 

305 

53

Sediment 

discharge 

(tons per day)

472 

364 

6.68 

389 

55.2 

5.29

Perc

0.002 0.004 0.00
PACIFIC SLOPE BASINS IN CALIFORNIA

g 6

o

o a

3 §

i i

£ 4

£

5 h

» 3

3* 10

O rt 

H TJ H

O O !> to 

01 to

» a 

1 § t

4-> X

 P O B A Tl It

T< o, n

recorder atstation ggig ire on

Tulare County.

55 toSeptember 1966. 

°F July 26,8;minimum, freezing

34°F 41°F. to Ce, 

iter, water October 1965toSeyear 

 P - en t- q * 

a g, H 3

o a h 6 o 0,0 o 3 o

+j 0 +j M +J o 

o, u t« « ^

in "* * o

- a 10 10 OP

S3 £2 * S o ca 33 .« o

H Of a a H 6

H U h h 1 O

Qfl O H Q, Q, H

H 10 +J p U 

« 41 01

O 01 O* cd cd 01 

- r-l ID kft Q,

0 BO 1 1 O

o n -p

+> *° ' 9 in o 3 -a < jto o

' - < -S !

§

fci W W p 

» tt ra w M ra

§ 3°l 1

I

<

&

.

*

p

c^

0

CN

CO 

CN

O

Tf 

CN

CN

O

CN

0

CO

 o

-

o

0>

CO

^

-o

10

Tf

n

CN

3

* ** m<" """ " ** ** "*

5

w 1 1 * *\ *m i i a* I i ^« « * 11 <nmmm t I * * t i m«

«« *m ll mm «w « * « * n «

55 SS JS SS SS 5S 55 5J

S5 S3 3S SS SS S3 5 1; 53

JS 53 SS SS SS SS 53 S5

m* ** .»m mm mm *m ** m *

** *» mm mm mm * m ** m»

SJ fS ?S SS SS S^ JS SJ

25 53 ?S SS mm SS 55 55

m* ** *m mm mm mm ** **

*.* *.» *m mm mm *m <f* **

66 M 66 66 66 66 66 66 68

K E E^ E 6J 6 6 ^E 6 e-E 6 66 66 66

-g isE i.s 6 i.s a i.s 1 i.s -g i.s- i.s ^ i.s 

OZD>2,BJS<S'2

« «\ 0 0 «

1 ! SS SS ! !

a* 5= s= it

*- SS So Sin

S? SS SS 2S

m* oin oo o-n

66 66 86^66

66 6S 66|6S i.s i.ssisii.s

SS^-SSfSSS-SS ^ < £
BUENA VISTA LAKE BASIN Continued 

11-1855. KERN RIVER CANAL NO. 3 NEAR KERNVILLE, 

LOCATION. Lat 35°54*aO", long 118°2fl'«0", temperature recorder located at gaging st

miles north of Kernville, Kern County.

RECORDS AVAILABLE. Water temperatures: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F on several days during July a

during December and January. 

EXTREMES, 1962-66. Water temperatures: Maximum, 71°F on several days during July a

point on several days during December 1963, Nov. 19, 20, 1964, December 1965 and 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum .... 

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum .... 

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

55 

49

51

46

41

38

35

32

35

34

39

38

50

53

51

56

51

61

71

68

62

56

2

54 

49

51

46

40

37

35

32

35

33

39

36

50

53

50

56

52

61

70

68

63

58

3

55

50

50

44

38

37

34

32

35

33

38

35

50

53

51

55

58

60

68

65

63

59

4

55 

51

50

43

38

37

34

32

35

34

38

34

50

53

51

55

51

60

70

67

65

60

5

56 

51

50

44

38

37

33

32

35

35

38

36

49

53

51

55

52

60

70

67

63

61

6

56 

51

50

42

39

37

34

32

35

35

41

38

50

54

51

55

54

64

61

70

67

65

61

7

56 

52

50

42

39

37

34

33

36

35

42

39

50

53

52

56

53

64 

61

70

67

64

61

8

57 

53

51

41

39

36

35

34

36

34

42

40

50

53

51

56

54

64

59

70

68

64

61

9

57 

54

48

41

39

37

35

34

36

34

42

39

50

53

51

56

53

64 

60

70

65

63

61

10

56

53

47

41

40

39

35

33

36

33

43

41

50

52

49

58

53

65

59

70

66

63

60

11

57 

52

47

40

40

38

35

33

36

33

44

41

49

53

50

60

55

65 

59

70

66

64

61

12

56

51

46

41

39

37

35

33

35

33

44

43

49

53

51

60

57

64 

59

69

66

63

61

13

56 

51

46

42

38

35

35

33

35

33

44

42

49

54

51

61

57

64 

59

69

66

62

58

14

56 

51

46

43

36

33

35

33

35

33

44

42

50

54

52

62

59

65

60

70

66

61

56

15

55 

52

45

43

36

33

35

34

35

33

43

41

52

54

51

62

58

65 

61

70

66

59

56

16

54 

47

45

44

35

32

35

33

35

33

44

42

51

54

52

60

56

66 

61

70

66

59

57

17

53

45

43

36

32

35

33

35

33

43

41

51

54

52

60

57

67

61

70

67

61

59

18

51

45

42

35

32

35

33

35

33

43

41

51

56

53

62

58

67 

62

71

67

61

61

19

51

45

42

35

32

35

32

36

34

43

42

48

56

54

62

59

69 

63

70

66

61

59

20

52

45

42

35

32

35

32

37

34

45

43

47

55

53

62

59

69

64

70

67

60

57
PACIFIC SLOPE BASINS IN CALIFORNIA

g 6

o

o a

3 §

i i

£ 4

£

5 h

» 3

3* 10

O rt 

H TJ H

O O !> to 

01 to

» a 

1 § t

4-> X

 P O B A Tl It

T< o, n

recorder atstation ggig ire on

Tulare County.

55 toSeptember 1966. 

°F July 26,8;minimum, freezing

34°F 41°F. to Ce, 

iter, water October 1965toSeyear 

 P - en t- q * 

a g, H 3

o a h 6 o 0,0 o 3 o

+j 0 +j M +J o 

o, u t« « ^

in "* * o

- a 10 10 OP

S3 £2 * S o ca 33 .« o

H Of a a H 6

H U h h 1 O

Qfl O H Q, Q, H

H 10 +J p U 

« 41 01

O 01 O* cd cd 01 

- r-l ID kft Q,

0 BO 1 1 O

o n -p

+> *° ' 9 in o 3 -a < jto o

' - < -S !

§

fci W W p 

» tt ra w M ra

§ 3°l 1

I

<

&

.

*

p

c^

0

CN

CO 

CN

O

Tf 

CN

CN

O

CN

0

CO

 o

-

o

0>

CO

^

-o

10

Tf

n

CN

3

* ** m<" """ " ** ** "*

5

w 1 1 * *\ *m i i a* I i ^« « * 11 <nmmm t I * * t i m«

«« *m ll mm «w « * « * n «

55 SS JS SS SS 5S 55 5J

S5 S3 3S SS SS S3 5 1; 53

JS 53 SS SS SS SS 53 S5

m* ** .»m mm mm *m ** m *

** *» mm mm mm * m ** m»

SJ fS ?S SS SS S^ JS SJ

25 53 ?S SS mm SS 55 55

m* ** *m mm mm mm ** **

*.* *.» *m mm mm *m <f* **

66 M 66 66 66 66 66 66 68

K E E^ E 6J 6 6 ^E 6 e-E 6 66 66 66

-g isE i.s 6 i.s a i.s 1 i.s -g i.s- i.s ^ i.s 

OZD>2,BJS<S'2

« «\ 0 0 «

1 ! SS SS ! !

a* 5= s= it

*- SS So Sin

S? SS SS 2S

m* oin oo o-n

66 66 86^66

66 6S 66|6S i.s i.ssisii.s

SS^-SSfSSS-SS ^ < £
BUENA VISTA LAKE BASIN Continued 

11-1855. KERN RIVER CANAL NO. 3 NEAR KERNVILLE, 

LOCATION. Lat 35°54*aO", long 118°2fl'«0", temperature recorder located at gaging st

miles north of Kernville, Kern County.

RECORDS AVAILABLE. Water temperatures: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F on several days during July a

during December and January. 

EXTREMES, 1962-66. Water temperatures: Maximum, 71°F on several days during July a

point on several days during December 1963, Nov. 19, 20, 1964, December 1965 and 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum .... 

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum .... 

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

55 

49

51

46

41

38

35

32

35

34

39

38

50

53

51

56

51

61

71

68

62

56

2

54 

49

51

46

40

37

35

32

35

33

39

36

50

53

50

56

52

61

70

68

63

58

3

55

50

50

44

38

37

34

32

35

33

38

35

50

53

51

55

58

60

68

65

63

59

4

55 

51

50

43

38

37

34

32

35

34

38

34

50

53

51

55

51

60

70

67

65

60

5

56 

51

50

44

38

37

33

32

35

35

38

36

49

53

51

55

52

60

70

67

63

61

6

56 

51

50

42

39

37

34

32

35

35

41

38

50

54

51

55

54

64

61

70

67

65

61

7

56 

52

50

42

39

37

34

33

36

35

42

39

50

53

52

56

53

64 

61

70

67

64

61

8

57 

53

51

41

39

36

35

34

36

34

42

40

50

53

51

56

54

64

59

70

68

64

61

9

57 

54

48

41

39

37

35

34

36

34

42

39

50

53

51

56

53

64 

60

70

65

63

61

10

56

53

47

41

40

39

35

33

36

33

43

41

50

52

49

58

53

65

59

70

66

63

60

11

57 

52

47

40

40

38

35

33

36

33

44

41

49

53

50

60

55

65 

59

70

66

64

61

12

56

51

46

41

39

37

35

33

35

33

44

43

49

53

51

60

57

64 

59

69

66

63

61

13

56 

51

46

42

38

35

35

33

35

33

44

42

49

54

51

61

57

64 

59

69

66

62

58

14

56 

51

46

43

36

33

35

33

35

33

44

42

50

54

52

62

59

65

60

70

66

61

56

15

55 

52

45

43

36

33

35

34

35

33

43

41

52

54

51

62

58

65 

61

70

66

59

56

16

54 

47

45

44

35

32

35

33

35

33

44

42

51

54

52

60

56

66 

61

70

66

59

57

17

53

45

43

36

32

35

33

35

33

43

41

51

54

52

60

57

67

61

70

67

61

59

18

51

45

42

35

32

35

33

35

33

43

41

51

56

53

62

58

67 

62

71

67

61

61

19

51

45

42

35

32

35

32

36

34

43

42

48

56

54

62

59

69 

63

70

66

61

59

20

52

45

42

35

32

35

32

37

34

45

43

47

55

53

62

59

69

64

70

67

60

57
BUENA VISTA LAKE BASIN Continued

11-1870. KERN RIVER AT KERNVILLE, CALIF.

LOCATION (revised). Lat 35°45'15", long 118°25'25", temperature recorder at gaging s

from highway bridge at Kernville, Kern County, 1.1 mile upstream from Caldwell Cre

and 41 miles northeast of Bakersfield.

DRAINAGE AREA. 1,009 square miles.

RECORDS AVAILABLE. Water temperatures: June 1962 to September 1966.

EXTREMES, 1965-66. -Water temperatures: Maximum, 80°F Aug. 5, 6, 8; minimum, 34°F on 

EXTREMES, 1962-66. Water temperatures: Maximum (1962-63, 1964-66), 80°F Aug. 5, 6, 

Jan. 1, 1965, and on several days during January 1966.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November 

Maximum ....

Minimum ....

December 

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April 

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

56

53

33

50

39

35

41

39

43

43

57

51

60

53

68

63

78

72

71

64

2

59

53

53

50

36

34

40

37

44

40

57

52

60

55

68

64

78

73

70

64

3

59

54

53 

49

36

34

40

37

43

39

56

52

60

54

68

64

78

73

72

66

4

59

56

52 

49

36

35

42

40

42

38

56

52

62

56

68

63

79

75

73

66

5

59

55

52

49

3T

35

42

41

44

41

58

52

62

57

69

64

80

76

74

M

6

61

»7

51

48

39

35

43

42

48

43

59

54

62

59

69

65

80

75

74

66

7

62

58

51 

48

40

37

43

41

49

44

58

55

64

58

69

64

79

75

72

64

8

62

58

50 

47

42

40

42

40

50

45

58

55

64

60

68

64

80

75

71

64

9

62

58

50 

48

42

38

41

39

49

44

58

54

62

58

69

65

79

74

70

65

10

61

57

50 

47

40

37

40

39

51

46

56

52

65

58

69

65

79

73

71

63

1 1

61

57

49 

46

40

38

40

37

51

46

59

32

67

61

68

63

78

73

70

63

12

61

56

46

40

37

40

37

51

48

59

53

67

62

68

63

77

72

69

62

13

60

56

49

48

39

36

41

38

51

46

59

53

68

62

69

63

78

73

66

59

14

59

57

50

49

40

37

42

39

51

47

60

55

69

63

70

64

78

73

65

58

15

57

53

50 

49

40

38

42

39

50

46

60

54

69

62

70

64

78

72

65

58

Day

16

54

50

50

50

40

38

42

39

50

46

61

54

66

60

70

64

78

72

67

59

 

17

54

50

50 

49

39

36

44

40

50

45

61

55

67

61

70

64

78

72

69

62

18

54

51

50 

48

39

36

44

41

49

44

61

56

69

63

70

65

78

72

67

65

19

56

52

50 

47

37

35

45

40

50

46

62

57

69

64

70

66

76

71

65

62

20

56

52

50 

48

37

34

45

41

51

47

62

56

69

64

70

65

75

70

66

60
BUENA VISTA LAKE BASIN Continued

11-1875. BOREL CANAL BELOW ISABELLA DAM, CA

LOCATION.--Lat 35°38'30", long 118 <> 28'10", temperature recorder at gaging station on 

Dam, Kern County, and 3 miles upstream from point where canal crosses Erskine Cre

RECORDS AVAILABLE. Water temperatures: October 1958 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F Aug. 3, 5, 15, 16; minimum, 4

EXTREMES, 1958-66. Water temperatures: Maximum, 80°F July 31 to Aug. 1, 1959; mini

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum .... 

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum .... 

Minimum ....

September

Maximum ....

Minimum ....

Day

1

67

66

63

62

53 

53

46

45

43

43

45

49

57

54

63

59

64

61

68

6«

74

72

71

70

2

67

66

62

61

53

52

45

45

43

42

45

45

57

54

65

61

64

64

66

67

74

72

72

69

3

66

65

61

60

52

52

45

45

43

42

45

45

61

54

65

64

64

63

68

66

77

74

72

70

4

66

65

61

60

52

51

45

45

A3

43

45

44

60

58

65

64

63

63

70

67

76

72

72

70

5

65

64

61

60

51 

51

45

45

43

43

45

45

61

60

66

60

65

63

70

67

77 

72

73

70

6

65

64

61

60

51 

51

45

45

43

43

47

45

63

59

60

59

64

64

68

67

76 

72

74

69

7

66

64

60

60

51

51

45

45

43

43

46

45

59

55

64

59

64

64

67

67

75

73

74

69

8

68

66

60

59

51

51

45

45

43

43

46

45

59

54

62

59

64

64

69

67

75

72

73

69

9

66

66

59

59

51

50

45

44

43

43

47

46

57

54

59

59

64

64

70

69

76

74

73

69

10

66

65

59

58

50

49

44

44

43

43

47

47

55

55

59

59

64

64

70

69

76

73

71

69

1 1

66

65

58

58

49

44

44

43

42

52

47

56

55

59

59

64

64

70

69

74

73

69

69

12

66

65

58

58

48

44

43

43

43

50

49

56

55

62

59

66

64

69

66

76

69

68

13

65

65

58

57

47

44

43

44

43

50

49

58

56

61

61

69

66

69

68

75

68

67

14

65

65

57

57

47

44

44

43

43

49

49

59

57

61

60

70

66

69

68

75

68

66

15

65

64

57

57

47

44

44

44

43

51

49

61

57

61

60

70

68

72

68

77

70

66

16

64

63

57

57

47

44

42

45

44

50

50

60

58

60

60

70

66

72

69

77

70

66

17

64

63

57

57

47

42

42

44

43

52

50

58

58

62

60

68

66

72

69

76

70

66

18

63

63

57

57

47

42

42

45

43

53

50

58

56

65

61

73

66

71

69

76

67

66

19

64

62

57

56

47

42

42

44

43

51

51

56

56

65

63

69

68

73

70

75

67

66

20

63

62

56

56

47

42

42

45

44

51

51

59

56

65

63

69

66

74

70

75

68

66
BUENA VISTA LAKE BASIN Continued

11-1940. KERN RIVER NEAR BAKERSFIELD, CALIF.

LOCATION (revised). Lat 35°25'54", long 118°56'43", at gaging station at Kern County Land Co. diversio

mile east of Oil City, and 5.8 miles northeast of Bakersfield, Kern County. 

DRAINAGE AREA. 2,407 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to July 1966 (discontinued).

Chemical analyses, in parts per million, October 1965 to Jul

Date 

of 

collection

Oct. 9, 1965. ....

Nov. 2.. .........

Jan. 6, 1966.. . . .

Peb. 1. ..........

Mar. 2...... .....

July 5. ..........

Mean 

discharge 

(cfa)

815 

579 

A 578 

590 

395

640 

748 

675 

678 

1210

Silica 

(S1Q.)

3.7

Iron

(Fe)

Calcium 

(Ca)

14

Magnesium 

(Mg)

2.4

Sodium 

(Na)

8.6 

9.6 

11 

18 

12

13 

13 

14 

9.7 

10

Potassium 

(K)

1.7

Bicarbonate 

(HCO,)

52 

56 

59 

50 

68

74 

71 

66 

39 

52

Carbonate

(cog

0 

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

14

Chloride

(Cl)

2.6 

2.7 

3.7 

7.5 

4.0

5.7 

4.8 

4.8 

3.4 

2.6

Fluorlde 

(F)

Nitrate 

(NO,)

0.4

A Discharge at time of sampling.
TULARE LAKE BASIN 

11-2032. TULE RIVER NEAR SPRINGVILLE, CALIF.

LOCATION. Lat 36°05'41", long 118°50'Q9", at gaging station 15 feet upstream from highway bridge, 2 m

downstream from North Fork. 

DRAINAGE AREA. 225 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1963 to July 1966 (discontinued).

Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 85°F Aug. 3, 4, 19.

Chemical analyses, in parts per million. October 1965 to 

Date 

of 

collection

Oct. 8, 1965.. . . .

Dec. 6. ..........

Jan. 3, 1966. ....

Mean 

discharge 

(cfs)

10 

52 

63 

104 

74

90 

170 

A80 

25 

4.7

Silica 

(S1Q.)

17

Iron

(Fe)

Calcium

(Ca)

28

Magnesium 

(Mg)

3.4

Sodium 

(Na)

23 

20 

15 

15 

15

13 

7.8 

9.2 

15 

22

Potassium 

(K)

1.8

Bicarbonate 

(HCOJ

246

218 

172 

151 

159

148 

84 

114 

188 

218

Carbonate 

(COJ

0 

0 

0 

0 

6

0 

0 

0 

0 

4

Sulfate 

(S04 )

2.0

Chloride 

(CD

11 

8.9 

7.3 

8.2 

7.0

6.0 

2.6 

4.2

7.5 

10

Fluoride 

(F)

Nitrate 

(NOJ

0.5

A Discharge at time of sampling.
PACIFIC SLOPE BASINS IN CALIFORNIA

tO

rH

 o o

3 S 

C 0>

+j a

C 0

o w 

u

1 O 

1 4-»

PN m 

1-1 (0

§ ° 

 H . O

C J 0 

0 J V

! S °

SB SB h

TO K O 

rf B. >> 

(2 GO

H PS 0 

W < + >

S * 

<; > 0

5 PS d

EH *

1 °

O

1 h 

rH 3 

rH -P

g 

CD

O.

I

 4

>-.

6

. 

« 

?

co

o 

co

00

r-.

CN

0

IO

T

CN

CN

CM 

CM

CM 

O

O

CO

[-.

*

IO

CO

CN

O

CO

r-.

0

IO

^T

CO

CN

-

S

11 """ II**"* 1 *«

>otn l| |l »« II 1 |

voif^ -if-if II <} * II 1 <ou

Or^JlJI ^-0 JrHl,

or- 5J il i-* ~* I ~^

St 5? ! i 55 S* ! *S

^iBo Chr- ii *o«* rHoo i tnr^

(Mtt^OjIO^WCD 1 fgtf

** ^^ ' ** «« i -"'

*S^^ il **^^ i -oS

ru. mm || S ;j ^o i OXN

to* Ir!n ( I*!* [nS Sif\ "tf

SS ££ 57 53 7S S^ *,S

! ! St 53 S3 S5 £5 5?

11 SS 55 *S S5 S* S2

i ! KK S5 55 55 *£ SS

! ! tS 55 55 55 £K 5S

! 1 mm ** *» ** mm «r

~, , m, «K ». .» mn r^

! i mS 5? 55 53 mm S J

il mm   **  mm * ,

I i Km 55 *3 ** mS St

Si mm ** ** *» mm «r

1 I r- r^ ilo ml 

1 I m « I i m * I

lit- K 110 .0 | |

1 1 m « Mm « 1 1

1 1 n m 1 1 o « i 

1 1 m « i 1 m * 1 1

I 1 «0 0 1 1 « rH 1 1

I 1 m * 1 1 * * 1

1 1 B* f- lit- m|l i I m « II* » I

1 I o r- 1 i i- N I 1 

1 1 <t> « 1 1 » * i i

S| M |6^|g || || gg |E 

w, e g^ e g^ g g g g g-8 g 6g el

§22 522 y2S c22i22 aSS'g.22

1010 l"'° ® "^ """ ' '

to rH |l -H m II 1 

-0-0 II <ot^ T 1 II

SS ££ tp ! ! f?S

°£ SP ** *P SS

PS ?P £P ^P P£

^0 Krt rum r-ru r, m

rum l-o. c^m <r>r-, <MO>

r-ko r- *o cor- oor- r-o

o=ru m. m* o* II

oo r-r^ cor- cor- if

SS SP 2P S? ! I

SS f P SP S? t i

SS ££ SP SS ! !

£S SP SP SP !

*m f-r- Pr- .r- 1 ,

-^, ,, co 0<t JSS ** Kh- »r- 1

om r-« «r- « r- I I

 #( - «0* C**^ *»O (I

£<B ChfNJ 00 «nO It

«tt S« ^ * oo r- II

(no r^-o IDG m* II

.m .. ,, ., ,|

gg eg ee ee^ee 33 33 33 33^33 

6g Sg S6 56-=>6g

llllll^IUlllll
TULARE LAKE BASIN Continued

11-2049. TULE RIVER BELOW SUCCESS DAM, CALIF

LOCATION. Lat 36°03'23", long 118°55'22", at gaging station 1,000 feet downstream from Success Dam, 

DRAINAGE AREA. 393 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1961 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 8, 1965. ....

NOT. 15. .........

Feb. 1. ..........

Mar. 9. ..........

July 5. ..........

Mean 

discharge

(cfs)

399 

.4 

72 

95 

1.9

66 

43 

56 

6.7 

9.8

Silica 

(S1Q.)

22

Iron 

(Fe)

Calcium 

(Ca)

33

Magriesium 

(Mg)

4.7

Sodium 

(Na)

11 

23 

14 

15 

18

15 

15 

14 

13 

13

Potassium 

(K)

2.0

Blcarbonate 

(HCO,)

129 

243 

154 

152 

198

149 

151 

150 

136 

136

Carbonate 

(CO,)

0 

2 

0 

0 

4

0 

0 

0 

3 

0

Sulfate 

(SO.)

5.0

Chloride 

(Cl)

3.7 

6.4 

6.5 

7.5 

7.0

7.7 

7.7 

6.4 

6.4 

5.2

Fluoride

(P)

Nitrat

(NO

0.
TULARE LAKE BASIN Continued

11-2080. MARBLE FORK KAWEAH RIVER AT POTWISHA CAM

LOCATION. Lat 36°31'10", long 118°48'10", temperature recorder at gaging station on 

Tulare County, and 0.3 mile upstream from confluence with Middle Fork Kaweah Rive

DRAINAGE AREA. 51.4 square miles.

RECORDS AVAILABLE. Water temperatures: January 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 74°F Aug. 4, 17-19; minimum, 36°F F

EXTREMES, 1962-66. Water temperatures: Maximum, 74°F July 30, 1964, Aug. 4, 17-19, 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

54

54

SI

51

42

41

40

39

37

37

39

38

50

44

52

46

55

51

67

61

72

67

64

58

2

W

54

52

31

42

41

40

40

37

36

38

38

50

45

52

46

54

50

69

61

71

69

64

59

3

55

54

52

50

43

42

40

40

3*

36

38

38

49

44

51

47

54

50

68

61

72

67

66

60

4

54

53

51

50

43

43

40

40

37

36

38

38

49

44

53

48

55

51

68

60

74

68

67

61

5

55

54

50

50

43

43

40

40

37

37

39

38

49

44

52

4»

57

53

67

61

72

68

66

62

6

$5

54

50

49

43

43

40

40

37

37

39

38

49

44

53

47

58

56

68

63

72

67

67

62

7

35

54

49

49

43

43

40

40

37

37

40

39

49

44

53

48

57

53

66

62

71

66

64

61

8

56

55

49

48

43

43

41

40

37

37

40

39

50

44

52

48

55

54

65

62

73

66

63

60

9

3*

56

49

48

44

43

41

41

37

37

45

39

49

43

51

47

57

53

69

62

72

66

64

60

10

56

56

50

49

44

44

41

41

37

37

45

42

47

44

47

46

60

55

67

61

72

66

64

60

11

56

55

50

49

44

44

41

41

37

37

46

40

46

43

50

47

60

56

67

61

70

67

64

60

12

56

55

49

48

44

43

41

40

37

37

44

43

45

44

51

47

62

58

66

60

70

66

62

58

13

55

54

50

49

43

43

40

40

37

37

47

43

47

43

54

48

63

57

68

61

70

67

60

56

14

55

54

50

49

43

42

40

40

37

37

45

42

49

44

53

48

63

59

68

62

72

67

58

54

15

53

53

49

49

42

42

40

39

37

37

46

41

50

44

53

48

64

59

67

62

73

68

57

54

16

53

30

50

49

42

41

39

39

37

37

44

42

51

4«

54

48

65

60

70

62

72

68

59

55

17

50

48

49

48

41

41

39

39

37

37

43

39

50

44

56

49

65

61

69

63

74

68

61

58

18

49

48

48

48

41

41

39

39

38

37

45

41

48

42

57

52

65

62

69

64

74

69

61

60

19

50

49

48

48

41

41

39

39

38

38

44

42

42

39

57

52

66

62

70

65

74

68

61

58

20

51

49

48

48

41

41

39

39

38

38

43

42

44

40

56

52

66

62

70

65

72

67

59

57
TULARE LAKE BASIN Continued 

11-2099. KAWEAH RIVER AT THREE RIVERS, CALIF,

LOCATION. Lat 36°26'38", long 118°54'09", at gaging station opposite schoolhouse in Three Rivers. Tul

River.

DRAINAGE AREA. 418 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1963 to July 1966 (discontinued).

Water temperatures: October 1965 to September 1966. 

EXTREMES, 1963-66. Water temperatures: Maximum, 83°F Aug. 18; minimum, 39°F on several days during w

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Feb. 7. ..........

July 11 ..........

Mean 

discharge

(cfs)

63 

45 

234 

261 

238

225 

1120 

996 

539 

95

Silica 

(SiQ.)

6.5

Iron 

(Fe)

Calcium 

(Ca)

4.2

Magnesium 

(Mg)

0.0

Sodium 

(Na)

6.8 

7.0 

4.6 

4.9 

5.1

4.5 

2.3 

1.6 

2.3 

3.8

Potassium 

(K)

0.4

Bicarbonate 

(HCO,)

55 

68 

34 

45 

44

46 

18 

15 

20 

38

Carbonate 

(COJ

0 

0 

0 

0 

0

0 

0 

0 

0 

0

SuUate 

(S04)

1.0

Chloride 

(CD

3.5 

4.2 

2.1 

2.3 

1.9

2.3 

.8 

.5 

.8 

2.0

Fluoride

(F)

Nitrate 

(NOJ

0.4
PACIFIC SLOPE BASINS IN CALIFORNIA

I II r-<4> irtf-i

! !

PM .Q

""

« * < ^ o * -r x\ n\ *> <

ss^ss ss ss se ss ss ss ss ss ee.ee 33n133'- :3 3 33 33 33 33 33 33 33 33 ^,33

.. g e-a e eJi s e ee e-es eg sg gg gg eg gg^gg '
TULARE LAKE BASIN Continued 

11-2109.5. KAWEAH RIVER BELOW TERMINUS DAM, CALI

LOCATION. Lat 36°24'51", long 119°00'42", at gaging station 0.6 mile downstream from Terminus Dam, Tu

DRAINAGE AREA. 561 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1961 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Nov. 8. ..........

Jan. 3, 1966. ....

Mar. 7....... ....

July 11 ..........

Mean 

discharge

(eta)

5.0 

29 

332 

335 

336

232 

460 

379 

1090 

498

Silica 

(SiQ.)

8.3

Iron 

(Fe)

Calcium 

(Ca)

5.4

Magnesium 

(Mg)

0.2

Sodium

(Na)

4.0 

4.6 

3.8 

4.4 

4.9

4.7 

2.8 

2.1 

1.8 

2.3

Potassium

(K)

0.6

Bicarbonate 

(HCOJ

44 

53 

36 

40 

46

47 

24 

20 

19 

26

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

SuUate 

(SO,)

1.0

Chloride 

(Cl)

1.8 

2.6 

2.2 

2.1 

2.2

2.6 

1.0 

.6 

.3 

.9

Fluoride

(F)

Nitrate 

(NO,)

0.5
TULARE LAKE BASIN Continued

11-2135. KINGS RIVER ABOVE NORTH FORK, NEAR TRIMM

LOCATION. Lat 36°51'45", long 119°07'25", temperature recorder at gaging station on 

upstream from North Fork, 2.9 miles south of Balch Camp, and 9.6 miles southeast 

DRAINAGE AREA. 952 square miles. 

RECORDS AVAILABLE. Water temperatures: December 1965 to September 1966.

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

Minimum ....

November 

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

 

42

38

43

42

46

44

53

49

 

57

54

70

64

2

__

39

37

43

41

44

41

52

49

57

53

71

65

3

__

40

37

44

41

43

39

53

49

__

56

52

73

67

72

66

4

41

38

45

43

44

39

52

49

58

53

74

68

72

66

5

 

44

41

45

43

47

42

52

49

. 

5<

55

74

67

73

67

6

 

44

42

46

45

50

46

52

49

58

57

73

68

7

45

42

46

43

52

47

52

49

55

52

58

56

72

67

8

47

44

44

42

51

47

52

49

55

52

60

57

72

67

9

 

46

43

44

41

52

47

52

50

54

52

60

56

70

66

10

44

42

45

41

55

50

52

50

53

51

62

57

70

66

11

__

__

44

42

43

39

54

50

52

49

55

52

62

59

70

66

12

43

41

44

40

51

50

53

50

56

52

63

59

69

64

13

__

42

40

44

41

54

49

53

49

56

53

63

59

67

62

14

43

40

44

40

52

50

54

50

56

53

64

60

66

60

15

38

36

44

42

44

40

53

49

54

50

62

59

66

60

Day

16

36

34

42

41

44

40

53

49

54

51

. 

64

58

67

61

17

35

33

41

38

45

40

50

45

54

50

64

60

68

63

18

36

33

40

37

46

42

50

45

52

46

65

61

68

65

19

36

33

40

37

47

43

50

47

47

45

57

54

66

62

66

63

20

37

34

40

38

47

43

51

47

50

46

57

54

65

61

66

62
TULARE l.**E BASIS Continued

11-2200. BIG CREEK ABOVE PINE FLAT RESERVOIR, NEAR TRIMM

(Formerly published as Big" Creek above Pine Flat Res

LOCATION. Lat 36°55'05", long 119°14'45", at gaging station 2.4 mil

DRAINAGE AREA. 69.9 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1960 to June 1966 (discontinued).

upstream from mouth, and 2.7 mi

ontinued). 

Chemical analyses, in parts per million, October 1965 to J

Date 

of 

collection

Oct. 11, 1965.... 

Nov. 15..........

Jan. 28, 1966....

May 9. ...........

Mean 

discharge

(cfs)

2.2 

67 

25 

26

42 

57 

50 

18 

8.4

Silica 

(S1Q.)

24 

25

Iron

(Fe)

Calcium 

(Ca)

9.6 

7.4

Magnesium 

(Mg)

0.7 

2.3

Sodium

(Na)

10 

6.0 

6.7 

7.0

6.8 

5.2 

4.9 

6.9 

9.0

Potassium 

(K)

1.6 

1.5

Bicarbonate 

(HCO,)

57 

23 

37 

40

42 

30 

30 

41 

46

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

3.0 

4.0

Chloride 

(Cl)

9.2 

4.2 

4.0 

2.8

2.6 

1.5 

2.1 

3.8 

4.5

Fluoride 

(F)

Nitrate 

(NO,)

0.4 

.3

A Calculated from determined constituents

11-2227. KINGS RIVER AT PEOPLES WEIR, NEAR KINGSBURG

LOCATION. Lat 36°29'06", long 119"32'22", approximately 0.2 mile downstream from gaging- station locat

County, and approximately 12 miles northeast of Hanford. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. Records of discharge furnished by Kings River Water Association.

Chemical alyse in parts per million, October 1965 t

Date 

of 

collection

Oct. 11, 1965....

Jan. 10, 1966....

June 13. .........

Mean 

discharge 

(cfs)

55 

14 

108 

94

120 

1182 

280 

295 

1513

Silica 

(S1Q.)

7.5

Iron 

(Fe)

Calcium 

(Ca)

6.8

Magnesium

(Mg)

2.8

Sodium 

(Na)

10 

4.4 

10 

11

7.6 

3.3 

3.7 

4.6 

2.2

Potassium 

(K)

1.2

Bicarbonate 

(HCO,)

82 

38 

85 

86

62 

21 

28 

38 

14

Carbonate 

(CO,)

2

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

4.0

Chloride 

(Cl)

4.8 

1.6 

5.8 

5.2

3.8 

1.0 

1.8 

2.6 

.6

Fluoride 

(F)

Nitrate 

(NO,

0.7
SAN JOAgiHN RIVER BASIN 

11-2370. BIG CREEK BELOW HUNTINGTQN LAKE, 

LOCATION. Lat 37°13'10", long 119°12'50", temperature recorder at gaging station on 

Creek, and 1 mile downstream from Huntington Lake, Fresno County. 

DRAINAGE AREA. 81.1 square miles (revised).

RECORDS AVAILABLE. Water temperatures: July 1961 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 59°F Aug. 17, IS, Sept. 23, 24, 29; 

during December and January. 

EXTREMES, 1961-66. Water temperatures: Maximum, 62°F Aug. 20-25, 1961, July 22-24, 

point on several days during December 1965 and January 1966.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum .... 

December

Maximum .... 

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum .... 

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

54

51

51

48 

41

3»

32

32

34

3*

35

3*

43

38

50

42

48

44

4»

55

58

53

57

52

2

54

50

50

^0

41

40

32

92

34

33

34

J4

43 

38

50

42

50

44

49

5J

57

53

57

52

3

54

50

50

48

40

32

32

34

33

34

33

44 

38

48

43

50

44

48

54

58

53

58

53

4

54

50

50 

48

40

33

32

35

34

33

33

44

38

49

44

51

44

49

55

58

53

58

54

5

54

51

50

48

39

33

33

34

34

35

33

44 

38

49

44

52

45

49

55

58

52

57

54

6

55

52

50 

47

39

34

33

34

34

36

35

44 

38

51

43

49

47

50

55

58

52

58

53

7

55

52

47

39

34

34

34

34

38

36

44

38

50

44

48

46

50

55

58

52

58

53

8

56

52

49

39

35

35

34

33

37

36

46 

39

49

44

48

46

50

52

58

52

58

53

9

55

52

48

41 

40

35

34

34

33

37

36

40

47

44

51

46

50

54

58

52

57

53

10

55

51

48

41

40

34

34

34

34

38

37

39

45

44

53

46

49

55

58

52

58

53

11

54

51

48

41 

39

34

34

34

33

37

36

39

47

43

53

46

48

55

57

52

57

53

12

55

51

48

39

36

34

33

33

33

37

37

39

50

42

54

47

49

55

58

52

58

53

13

54

51

48

39 

38

34

34

34

33

39

37

39

51

43

54

47

49

55

58

53

55

52

14

54

50

46

39

38

35

34

33

33

38

36

40

50

43

55

48

48

55

58

53

55

51

15

53

49

47

38 

36

35

34

34

33

38

36

40

51

43

54

48

49

55

58

53

56

51

16

50

48

47

37 

34

34

33

34

33

39

37

40

51

43

55

49

50

56

58

53

57

53

17

52

48

46

34 

34

34

33

34

33

38

36

40

52

44

55

49

50

56

59

54

58

53

18

52

49

45

34 

34

34

33

34

34

39

36

40

52

44

55

49

50

56

59

54

56

54

19

52

50

.45

34 

34

34

33

35

34

39

37

37

53

45

55

49

51

56

58

54

56

53

20

53

49

45

35 

34

33

33

35

34

39

37

38

53

46

55

49

51

56

58

53

57

53
SAN JOAQUIN RIVER BASIN Continued 

11-2465. WILLOW CREEK AT MOUTH, NEAR AUBERRY, 

LOCATION. Lat 37°09'10", long 119°27'30", temperature recorder at gaging station on 

mile upstream from mouth, 1.3 miles downstream from Whiskey Creek, and 4.3 miles 

DRAINAGE AREA. 130 square miles.

RECORDS AVAILABLE. Water temperatures: October 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 91°F Aug. 5; minimum, 37°F Dec. 18

EXTREMES, 1960-66. Water temperatures: Maximum (1960-63, 1964-66), 91°F Aug. 5, 19

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

66

60

59

54

47

44

42

39

44

43

47

46

60

55

66

58

64

59

77

69

86 

76

2

67

60

58

54

48

45

40

98

44

41

46

43

60

56

67

58

63

57

77

69

»8

77

3

67

60

56

52

49

46

40

38

44

42

44

40

61

56

67

60

63

57

76

68

90

78

4

66

60

55

»2

49

46

41

36

45

44

44

39

60

55

66

62

64

57

78

68

90

76

5

65

60

54

31

49

46

44

41

46

44

48

43

60

54

66

62

65

59

79

68

91

77

6

67

60

54

51

49

43

44

42

46

45

50

47

60

54

66

59

65

61

80

70

89

75

7

68

61

53

50

48

45

44

42

46

43

52

48

60

54

66

60

64

62

78

69

90

74

8

67

60

54

50

47

44

46

44

44

41

51

49

60

55

65

61

65

62

72

69

39

75

9

66

60

53

31

48

47

46

42

44

42

53

49

38

55

63

60

68

62

77

68

10

66

60

53

50

49

48

44

41

44

43

55

52

58

55

60

57

71

64

78

68

11

66

59

52

50

49

48

44

43

44

40

53

30

56

51

61

57

71

64

78

68

12

65

59

52

52

48

45

44

43

45

41

52

51

57

52

64

57

71

64

77

66

13

65

59

52

52

46

44

43

41

45

41

55

51

58

51

66

59

73

66

77

68

14

64

60

53

52

45

44

44

42

45

42

54

50

60

53

66

60

75

68

78

68

15

63

60

53

52

45

42

45

42

45

42

56

49

62

55

66

59

76

70

78

68

Day

16

59

56

53

52

42

39

44

42

45

42

53

50

64

57

67

59

77

72

79

69

17

56

54

53

52

40

36

43

41

46

42

50

45

62

57

68

60

76

72

80

70

18

59

54

53

51

40

37

43

39

46

43

51

46

59

52

69

62

78

72

81

70

19

60

55

52

50

39

37

41

39

46

44

51

49

52

49

71

63

77

71

82

71

A1

20

61

56

52

51

39

38

41

39

48

44

51

49

54

47

72

65

77

71

83

72

70

A?
SAN JOAQU1N RIVER BASIN Continued 

11-2470. SAN JOAQUIN RIVER BELOW KERCKHOFF POWERHOUSE, NEA

LOCATION. Lat 37'04'45", long 119°33'35", temperature recorder at gaging station on 

powerhouse, Fresno County, 1.4 miles downstream from Big Sandy Creek, and 3.8 mile

DRAINAGE AREA. 1,481 square miles (revised).

RECORDS AVAILABLE.--Water temperatures: November 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 68"F Aug. 9, 17; minimum, 39"F on s

EXTREMES, 1960-66. Water temperatures: Maximum, 73°F Aug. 22, 1961; minimum, 38°F s

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December 

Maximum ....

Minimum .... 

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April 

Maximum ....

Minimum .... 

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

61

61

57

57

46

46

44

43

40

40

43

42

48

51

51

54

53

59

58

62

61

65

64

2

61

61

57

57

48

48

43

42

40

40

42

42

48

52

51

54

53

59

58

65 

61

65

64

3

61

61

57

56

48

48

42

42

40

40

41

41

48

53

51

55

53

59

58

64 

62

66

64

4

61

61

57

56

48

42

42

41

40

41

41

48

52

52

55

53

61

59

62 

62

66

65

5

61

61

56

56

48

42

41

41

41

41

41

52

51

55

54

61

59

62 

62

6«

65

6

62

61

56

56

48

41

41

42

41

42

41

51

51

55

53

59

58

63 

62

66

65

7

62

62

56

56

48

41

41

41

41

42

42

51

51

54

54

59

56

63

63

66

65

8

62

62

56

55

47

41

41

41

41

43

42

51

51

54

54

62

58

63 

62

66

65

9

63

62

55

55

47

42

41

41

41

45

42

51

51

54

54

60

58

68

63

66

65

10

62

62

55

55

47

42

41

41

41

45

44

51

51

56

54

59

58

64 

63

66

64

11

62

61

56

55

47

41

41

41

41

45

44

51

51

56

54

59

59

64 

62

66

64

12

62

62

55

55

47

41

41

41

41

44

43

51

51

56

54

59

59

62 

62

65

64

13

62

61

55

55

41

40

41

40

45

43

52

51

56

55

59

58

62 

62

65

64

14

62

62

55

55

40

40

40

40

45

43

52

52

56

55

59

58

63 

62

64

64

15

62

61

55

55

40

40

40

40

45

43

49

52

51

56

56

59

59

63 

62

64

64

16

61

60

55

55

46

40

40

40

39

45

44

50

52

51

56

56

59

59

63 

62

65

64

17

60

60

55

55

46

40

40

40

39

46

45

50

52

52

56

56

60

59

68 

63

65

64

18

60

60

55

55

40

40

40

39

45

45

50

52

51

58

56

60

59

63

65

64

19

60

60

55

55

40

40

39

39

46

45

49

49

52

51

59

57

60

59

63

64

64

20

60

60

55

55

45

40

40

39

39

46

45

49

48

53

51

59

57

60

59

63

64

64
SAN JOAQUIN RIVER BASIN Continued 

11-2540. SAN JOAQUIN RIVER NEAR HENDOTA, CALI

LOCATION],_Lat 36°48'35", 120°22'35", approximately 2.5 miles downstream from Mendota Dam, and 4 mile

DRAINAGE"AREA.--4,310 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 11, 1965....

Jan. 10, 1966....

May 9. ........... 

June 13. .........

Mean 

discharge

(cfs)

Silica 

(S1O3)

4.0

Iron 

(Fe)

Calcium 

(Ca)

17

Magnesium 

(Mg)

7.4

Sodium 

(Na)

47 

70 

66 

63

113 

88 

46 

23 

34

Potassium 

(K)

1.8

Bicarbonate 

(HCO,)

95 

104 

88 

99

122 

116 

90 

67 

91

Carbonate 

(CO,)

0 

2 

2 

0

4 

0 

0 

0 

0

Sulfate 

(SO.)

23

Chloride 

(Cl)

65 

106 

86 

90

144 

125 

60 

29 

41

Fluoride 

(F)

Nitrat

(NO

1

11-2610. SALT SLOUGH NEAR LOS BANGS, CALIF.

LOCATION. Lat 37°09'35", long 120"48 t 45", at gaging station at San Luis Ranch, 600 yards downstream 

Banos, Merced County. 

RECORDS AVAILABLE. Chemical analyses: November 1958 to September 1966.

Chemical analyses, in parts per milllion, October 1965 

Date 

of 

collection

Mean 

discharge 

(cfs)

55 

45 

203 

132

79 

95 

140 

98 

78

Silica 

(S103)

17

Iron 

(Fe)

Calcium 

(Ca)

54

Magnesium 

(Mg)

25

Sodium 

(Na)

179 

190 

234 

396

520 

266 

234 

123 

109

Potassium 

(K)

4.6

Bicarbooate 

(HCO,)

197 

202 

208 

236

262 

188 

166 

152 

158

Carbonate 

(CO,)

4 

0 

0 

0

0 

0 

10 

0 

0

Sulfate 

(S0«)

165 

174 

302 

670

860 

372 

295 

123 

110

Chloride 

(Cl)

248 

270 

256 

464

545 

302 

300 

172 

130

Fluorlde 

(F)

Nitrat

(NO

3.
SAN JOAQUIN RIVER BASIN Continued 

11-2615. SAN JOAQUIN RIVER AT FREMONT FORD BRIDGE, 

LOCATION. Lat 37 t> 18'35", long 120°55'45", at gaging station in Orestimba Grant, 30 feet downstream fr

stream from Salt Slough, 4.5 miles west of Stevinson, and 6.7 miles upstream from Merced River. 

DRAINAGE AREA. 7,619 square miles. 

RECORDS AVAILABLE. Chemical analyses: July 1955 to September 1966.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Nov. 2...........

Jan. 4, 1966.....

Mar. 8...........

June 9. ..........

Mean 

discharge 

(da)

168 

45 

881 

1940

415 

187 

230 

175 

163

Silica

(810,)

13

Iron 

(Fe)

Calcium 

(Ca)

64

Magnesium 

(Mg)

34

Sodium

(Na)

130 

344 

89 

46

144 

294 

252 

186 

158

Potassium 

W

6.3

Blcarbonate 

(HCOJ

174 

225 

140 

106

158 

200 

204 

190 

172

Carbonate 

(COJ

4 

0 

0 

0

2

0 

0 

0 

0

Sulfate 

(SO.)

105 

323 

95 

65

177 

350 

277 

154 

145

Chloride 

(Cl)

183 

580 

95 

46

170 

400 

352 

273 

210

Fluorlde 

(P)

Nitrate 

(NOJ

1.2
SAN JOAQUIN RIVER BASIN Continued

11-2645. MERCED RIVER AT HAPPY ISLES BRIDGE, NEAR YOS

(Irrigation network station)

LOCATION. Lat 37'43*54", long 119°33'2a", temperature recorder at gaging station on 

at Happy Isles, Hariposa County, 0.4 mile downstream from Illilouette Creek, and 

headquarters.

DRAINAGE AREA. 181 square miles.

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Minimum, freezing point on many days during 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum .... 

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June 

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

48

45

45

43

36

34

32

32

3*

33

35

33

43

42

45

41

61

60

53

53

2

48

^6

44

42

38

35

32

32

33

32

33

32

45

42

45

44

62

61

53

53

3

48

45

44

42

39

36

33

32

34

34

33

32

46

42

45

45

63

62

54

53

4

47

45

43

41

39

36

33

33

34

34

33

33

46

44

45

45

63

63

53

52

5

47

45

43

41

39

36

34

33

35

34

34

33

45

43

45

45

63

61

54

53

6

50

47

43

41

38

36

35

34

35

34

36

34

46

43

47

45

61

58

54

54

7

51

49

43

41

37

35

36

35

35

34

38

36

46

42

47

46

58

58

54

54

8

51

49

43

41

38

35

36

35

34

34

39

36

45

42

47

47

59

59

54

53

9

51

49

42

41

40

38

35

34

34

33

38

36

45

42

47

46

59

59

53

52

10

50

48

42

40

39

37

35

34

34

33

40

38

43

42

45

44

59

58

52

50

11

49

47

42

40

38

35

35

34

33

33

39

36

42

42

45

44

58

58

52

50

12

49

47

41

40

35

33

34

33

33

33

41

38

42

42

45

44

58

58

52

51

13

48

*7

42

41

34

33

34

34

33

32

40

37

43

42

45

44

58

58

51

50

14

48

46

42

40

33

32

34

34

33

32

40

36

45

42

45

43

59

58

51

47

15

47

43

42

40

32

32

35

34

33

32

40

36

45

43

45

44

59

58

51

46

16

43

41

41

40

32

32

34

32

33

32

39

37

47

44

47

44

59

59

52

49

17

43

41

42

40

32

32

33

32

34

33

37

35

46

43

47

45

59

59

52

50

18

46

43

42

41

32

32

32

32

34

34

39

37

44

41

47

46

61

59

52

51

19

46

45

43

41

32

32

33

32

35

34

40

39

41

38

47

47

61

61

51

51

20

46

45

41

40

33

32

33

33

35

34

40

38

42

39

51

47

61

59

51

50
11-2725. MERCED RIVER NEAR STEVINSON, CALIF.

LOCATION. Lat 37°22*15", long 120°55'45", at gaging station 5 miles upstream from mouth, and 6 miles 

DRAINAGE*AREA. 1,273 square miles.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Jan. 4, 1966....

June 9.... .......

Mean 

discharge 

(els)

263 

128 

4030 

818

272 

152 

171 

104 

150

Silica 

(S10,)

26

Iron 

(Fe)

Calcium 

(Ca)

25

Magnesium 

(Mg)

9.1

Sodium 

(Na)

18 

34 

3.8 

5.6

16 

33 

24 

41 

28

Potassium 

W

2.4

Blcarbonate 

(HCO,)

83 

154 

33 

45

99 

142 

114 

150 

119

Carbonate

(ccg

0 

0 

0 

0

0 

0 

0 

0 

2

Sulfate 

(S04 )

18

Chloride 

(CD

10 

22 

1.8 

2.2

6.4 

20 

16 

31 

17

Fluoride 

(F)

Nitrat

(Nc

6

11-2745.5. SAN JOAQUIN RIVER NEAR CROWS LANDING, CALI

LOCATION. Lat 37°25'55", long 121°00'42", at gaging station at Crows Landing Bridge, 4.2 miles northeast 

southeast of Patterson.

RECORDS AVAILABLE. Chemical analyses: January 1962 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to Jun

Date 

of 

collection

Nov. 2...........

Nov. 30..........

Jan. 4, 1966..... 

Feb. 8. ..........

Apr. 5. ..........

June 9. ..........

Mean 

discharge

(cfs)

Silica 

(810,)

16

Iron 

(Fe)

Calcium 

(Ca)

65

Magnesium 

(Mg)

29

Sodium 

(Na)

78 

174 

25 

55

230 

272 

208 

176 

133

Potassium 

(K)

4.9

Bicarbonate 

(HCO,)

147 

206 

60 

106

190 

210 

204 

198 

172

Carbonate

(ccg

0 

0 

0 

0

10 

0 

0 

0 

2

Sulfate 

(S04 )

172

Chloride 

(CD

90 

235 

23 

54

258 

322 

280 

222 

160

Fluoride 

(F)

Nitrate 

(NOJ

3.6

B

r

(

0

1

1

1
SAN JOAQUIN RIVER BASIN Continued 

11-2745.7. SAN JOAQUIN RIVER NEAR PATTERSON, CA

LOCATION. Lat 37°29'52", long 121°04'53", at gaging station at Patterson Bridge, 3.3 miles northeast 

Crows Landing.

RECORDS AVAILABLE. Chemical analyses: January 1962 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemic_al analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 5, 1965.....

Mar". 8...........

June 9. ..........

Mean 

discharge

(cfs)

Silica 

(S10,)

16

Iron

(Fe)

Calcium 

(Ca)

62

Magnesium 

(Mg)

31

Sodium 

(Na)

76 

184 

32 

50

222 

266 

179 

176 

130

Potassium 

(K)

4.5

Bicarbonate 

(HCO,)

153 

192 

73 

100

206 

216 

384 

202 

180

Carbonate 

(CO,)

0 

6 

0 

0

2 

0 

0 

0 

4

Sulfate 

(SO,)

164

Chloride 

(CD

108 

265 

31 

52

258 

328 

240 

220 

150

Fluoride 

(F)

Nitrate 

(NO

5.
SAN JOAQUIN RIVER BASIN Continued 

11-2747. SAN JOAQUIN RIVER NEAR GRAYSON, CALIF

LOCATION. Lat 37°33'46", long 121°09'05", at gaging station at Laird Slough Bridge, 1.8 miles east of 

confluence with Tuolumne River, and 14 miles southwest of Modesto. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. Records of discharge furnished by Public Utulities Commission, City and County of San Franci

Slough which returns to San Joaquin River main channel 2.1 miles downstream.

Chemical analyses, in parts per million, October 1965 to J

Date 

of 

collection

Oct. 6, 1965....

Mean 

discharge

(cfs)

840 

485 

4050 

2910

1330 

735

Silica 

(810,)

14

Iron 

(Fe)

Calcium 

(Ca)

62

Magnesium 

(Mg)

35

Sodium 

(Na)

96 

184 

30 

98

202 

302 

196 

166 

130

Potassium

(K)

4.0

Blearbonate 

(HCOJ

160 

242 

63 

138

216 

206 

214 

214 

204

Carbonate 

(CO,)

4 

0 

0 

0

2 

0 

0 

0 

0

Sulfate 

(SO,)

150

Chloride 

(CD

122 

245 

30 

96

228 

305 

260 

215 

165

Fluorlde

(P)

Nitrate 

(NO,)

5.4
SAN JOAQUIN RIVER BASIN Continued 

11-2831. LILY CREEK NEAR PINECREST, CAL

LOCATION. Lat 38"08'40", long 119°54'05", temperature recorder at gaging station o

and 5.7 miles southeast of Plnecrest, Tuolumne County. 

DRAINAGE AREA. 11.9 square miles.

RECORDS AVAILABLE. Water temperatures: October 1964 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F Aug. 17; minimum, freezing p

EXTREMES, 1964-66. Water temperatures: Maximum, 77°F Aug. 17, 1966; minimum, free

Temperature (°F) of water, water year October 1965 t

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

47

46

42

41

33

33

33

33

32

32

32

32

36

33

46

38

53

47

70

64

71

65

63

56

2

50

46

42

41

33

33

33

33

32

32

32

32

36

33

46

39

53

45

69

63

71

64

65

57

3

50

47

42

40

33

33

33

33

32

32

32

32

36

33

42

39

53

45

66

61

75

65

66

57

A

49

47

41

40

33

33

33

33

32

32

32

32

36

33

43

40

55

48

69

62

75

67

67

57

5

50

46

40

39

33

33

33

33

32

32

32

32

37

34

44

40

55

49

70

63

75

67

63

58

6

50

47

40

39

33

33

33

33

32

32

32

32

38

35

47

40

55

51

70

64

75

65

65

57

7

52

48

40

39

33

33

33

33

32

32

32

32

39

3«

47

40

52

48

69

63

75

65

64

57

8

52

49

40

40

33

33

33

33

32

32

32

32

39

35

46

42

53

49

67

63

74

65

63

57

9

51

49

40

38

33

33

33

33

32

32

33

32

37

36

43

42

54

48

67

61

74

65

63

56

10

50

48

39

38

33

33

33

33

32

32

33

33

36

34

43

40

58

50

68

61

74

65

63

55

11

50

48

39

38

33

33

33

33

33

32

33

33

38

34

46

40

59

51

68

62

74

64

62

55

12

50

47

39

38

33

33

33

33

33

32

33

33

39

34

46

40

60

54

68

62

73

64

61

55

13

49

47

38

37

33

33

33

33

33

32

33

33

40

35

48

41

63

57

68

62

74

65

56

54

14

49

47

37

35

33

33

33

33

33

32

33

33

41

35

48

42

63

59

68

62

74

64

58

52

15

47

44

35

35

34

33

33

33

33

32

33

33

41

35

50

42

63

60

67

61

74

65

59

52

16

44

40

35

35

34

33

33

33

33

32

33

33

41

36

50

44

64

61

69

61

73

65

61

53

17

42

40

36

35

34

33

33

33

32

32

33

33

41

36

52

44

65

59

69

62

77

65

60

54

18

44

41

36

35

34

33

33

33

32

32

33

33

37

35

53

46

65

60

70

63

74

64

58

54

19

46

43

36

35

34

33

33

33

32

32

33

33

39

33

53

47

65

61

71

64

T4

65

55

52

20

46

44

36

35

34

33

34

33

32

32

34

33

40

33

55

48

65

62

73

65

73

64

58

53
PACIFIC SLOPE BASINS IN CALIFORNIA

Specific cont

&

So

«3

o

8*

 g-

£. 0)

1 

0

t

3

I

I

<

8

A

J, a o *JJ

0 i o. e 5

3^ §53

isis

*!**!

I si

iMi

IN

«§ §s

s||

|f£

-s

15

O

H

jlSg

SjMf

;||8

g

Ji

i «3=-

3|I

II

||

iff

hl

in CM CM m

in IH to o * in in o>

CO * CO CO

o

0 0 0 *

H iH CM CO

O O O O

0

tO 00 CMrt

CM CO CM *

O O O O

00 O I1 tO 

iH CM CM CO

00 f- CM N

CM CO CO *

0000

c« a> in to

t«. CO tO ft

<H H N <H

. . .0 

<O* <O H

+> > o q

O) 00 COt- CM

 * m co to IH

f- 00 * 00 CM

 * * O HCM

CM CM CM

O H ^ 00 iH 

CM CM CO

m o> o » to

CM CM O O iH

iH H H

in 

o

to 

o

00 

CO

H O O M O

CM

IH

01 in

 *« oo o to

000 0 

H iH

o *'

O O H O O

CO CO 00 Ol O

in

CM o in

 * in *" o * in in

CM

01

00

H

o o co in to

N* H H O> in n H H

H iH

t» 00 KS -O) 

O)
SAN JOAQUIN RIVER BASIN Continued 

11-2900. TUQLUMNE RIVER AT MODESTO, CALI

LOCATION. Lat 37°37'38", long 120°59'20", temperature recorder at gaging station on 

Hodesto, Stanislaus County, and 0.2 mile downstream from Dry Creek. 

DRAINAGE AREA. 1,884 square miles.

RECORDS AVAILABLE. Water temperatures: July 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 84°F Aug. 7; minimum, 46°F on seve

EXTREMES, July 1965 to September 1966. Water temperatures: Maximum, 84°F Aug. 7, 1

January to March 1966.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

Pecember

Maximum .... 

Minimum ....

January

Maximum ....

Minimum .... 

February

Maximum ....

Minimum .... 

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum . . .

July

Maximum ....

Minimum ....

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

64

6*

51

51

47

^f

49

48

50

48

68

63

72

65

72

68

76

71

83

77

~.

2

67

65

51

51

47

^f

48

47

49

47

68

65

7*

67

72

66

75

70

83

77

_ »

3

67

65

51

51

47

46

48

47

48

47

68

64

7*

69

73

6*

77

69

83

76

4

66

65

__

51

51

49

^f

49

48

48

4«

69

66

73

67

75

68

79

71

83

76

_ i.

5

66

64

52

51

50

49

40

48

47

70

65

73

66

76

69

78

71

82

79

6

67

65

51

51

50

50

49

51

48

69

66

73

67

73

69

77

71

83

76

77

72

7

67

65

51

51

50

49

53

50

69

64

74

67

76

67

76

70

84

77

76

71

8

67

65

60

59

51

51

50

48

53

51

68

64

71

68

77

72

76

70

80

77

75

69

9

67

66

60

59

51

51

50

48

52

51

66

64

70

65

77

72

76

70

80

75

76

71

10

67

65

59

58

51

51

50

48

52

51

65

62

69

66

78

72

77

70

78

69

75

71

11

66

65

59

58

51

51

48

48

54

51

67

63

72

64

77

72

75

70

73

69

74

69

12

66

65

59

58

51

51

48

48

55

53

68

62

74

67

79

71

75

69

74

69

72

68

13

66

64

58

57

51

51

48

48

57

54

68

63

75

68

81

73

75

69

75

68

71

67

14

66

64

58

57

50

50

48

48

57

54

70

64

73

68

83

76

75

69

73

67

71

67

15

65

64

59

58

49

49

48

48

57

55

71

65

73

67

83

78

77

70

71

67

73

67

Day

16

64

62

59

58

49

49

48

48

56

54

71

66

74

68

82

77

76

71

73

68

74

67

17

63

61

59

59

49

48

48

49

56

52

71

67

75

68

82

75

78

70

75

67

18

64

62

59

58

49

48

48

49

55

53

67

64

77

70

83

75

79

75

73

69

19

65

63

59

58

49

48

47

50

56

53

67

62

78

71

82

77

80

73

73

67

20

65

64

58

57

49

48

47

46

50

58

52

68

63

79

72

78

74

81

76

73

69
11-2902. TUOLUMNE RIVER AT TUOLUMNE CITY, CALIF

LOCATION. Lax 37°36'10", long 121°07'50", at gaging station at bridge in Tuolumne City, Stanislaus Co

DRAINAGE AREA. 1,897 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued).

REMARKS. Records of dischage furnished by Public Utilities Commission, City and County of San Francis

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

June 9. . . .._, .....

Mean 

discharge

(cfs)

1750 

1680 

3470 

1840

2920

Silica 

Si02)

32

Iron

(Fe)

Calcium

(Ca)

51

Magnesium 

(Mg)

16

Sodium 

(Na)

19 

17 

11 

20

10 

20 

70 

96 

98

Potassium 

(K)

6.7

Bicarbonate 

(HCOJ

38 

35 

34 

58

37 

54 

127 

154 

158

Carbonate 

(CO,)

0 

0 

0 

0

0 

0

1

0 

0

Sulfate 

(»«)

12

Chloride 

(Cl)

38 

36 

20 

35

17 

38 

143 

189 

185

Fluoride

(F)

Nitrate 

(NO,

5.4

11-2905. SAN JOAQUIN RIVER AT MAZE ROAD BRIDGE, NEAR MO

LOCATION. Lat 37°48'10", long 121 <> 19'00", at Maze Road Bridge 0.2 mile downstream from gaging stati

Stanislaus River, and 12 miles west of Modesto, Stanislaus County. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. Records of discharge furnished by Public utilities Commission, City and County of San Fran

Chemical analyses, in parts per million, October 1965 t

Date 

of 

collection

June 9. ..........

Mean 

discharge

(cfs)

2370 

2070 

6140 

4740

3930 

2040

Silica 

(Si02)

20

Iron

(Fe)

Calcium 

(Ca)

63

Magnesium 

(Mg)

29

Sodium

(Na)

44 

56 

18 

66

54 

90 

138 

141 

127

Potassium 

(K)

5.2

Bicarbonate 

(HCOJ

84 

84 

49 

104

83 

134 

178 

192 

184

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

102

Chloride 

(Cl)

66 

82 

22 

74

67 

126 

220 

222 

190

Fluoride

(F)

Ni

tra

(NO

6
SAN JOAQUIN RIVER BASIN Continued 

11-2927. MIDDLE FORK STANISLAUS RIVER AT HELLS HALF ACRE BRIDGE

LOCATION. Lat 38°14'49", long 120°01'51", temperature recorder at gaging station on 

powerhouse, 800 feet downstream from Hells Half Acre Bridge, 1.1 miles upstream 

Pinecrest, Tuolumne County.

DRAINAGE AREA. 287 square miles.

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Minimum, freezing point on several days dur

REMARKS. Clock stopped Oct. 9-25; temperature range, 52°F to 57°F.

Temperature (°F) of water, water year October 1965 to 

October

Maximum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

May

June

Maximum ....

Minimum ....

July

August

September

Maximum ....

Minimum ....

1

52

47

40

39

33

31

36

33

39

35

2

53

49

40

38

33

32

38

35

37

35

58

49

66

59

3

52

48

41

38

33

32

38

3ft

38

33

58

49

67

59

4

31

48

41

39

34

33

39

38

37

34

60

32

68

60

5

55

51

47

41

39

35

34

40

38

42

37

60

53

66

61

6

56

50

46

41

38

36

3*

38

36

43

40

58

55

68

61

7

58

50

46

40

38

37

35

38

35

46

41

58

5*

68

61

8

58

51

48

40

38

38

36

38

33

46

42

62

54

67

60

9

50

48

41

39

37

35

38

35

47

42

60

56

67

60

10

50

46

41

39

37

35

38

35

46

41

64

56

66

60

11

49

46

41

38

37

34

37

34

44

39

64

57

65

59

12

48

47

39

38

36

34

38

34

44

39

65

57

64

58

13

49

47

39

37

37

34

37

33

46

41

67

58

61

56

14

48

47

37

35

37

35

37

33

46

40

69

60

61

53

15

48

4A

35

33

39

36

38

33

44

40

70

62

61

54

Day

16

49

47

34

32

37

35

38

33

44

39

70

62

61

55

17

48

44

34

32

36

34

39

34

42

37

71

63

62

57

18

45

43

34

32

36

33

40

35

45

40

71

63

59

57

19

45

44

34

32

36

33

40

36

45

41

72

63

60

56

20

45

43

35

33

36

33

40

36

45

39

70

62

6?

56
11-3020. STANISLAUS RIVER BELOW GOODWIN DAM, NEAR KNIGH

LOCATION. Lat 37°51'01", long 120°38'13", temperature recorder at gaging station on 

1.0 mile downstream from Goodwin Dam, and 3 miles northeast of Knights Ferry, Sta

DRAINAGE AREA. 986 square miles.

RECORDS AVAILABLE. Water temperatures: February to September 1966. 

REMARKS. Clock stopped Mar. 3-13; temperature range, 46°F to 48°F; May 6-31; temper

Temperature (°F) of water, water year February to S

October

November

December

January

February 

Maximum .... 

Minimum .... 

March 

Maximum ....

April 

Maximum .... 

Minimum .... 

May

June

July

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

44 

44

47

56 

55

74 

73

2

44 

44

47

56 

56

74 

73

3

44 

44

47

56 

56

74 

72

4

44 

44

57 

56

74 

73

5

45 

44

58 

57

7$ 

77

75

73

6

45 

45

59 

58

78 

76

75 

74

7

45

45

59 

59

78 

76

75 

74

8

45 

45

59 

59

78 

77

74 

73

9

45 

45

59 

59

79 

77

74 

73

10

46 

45

59

58

78 

77

74

73

11

46 

46

59

58

78 

76

74 

73

12

46 

45

60 

59

7$ 

76

73 

72

13

46 

45

61 

59

72 

72

14

46 

45

50

61

60

72 

71

15

46

45

50

61

60

71 

70

Day

16

46 

45

50

61

60

78 

76

71 

70

17

46 

45

50

61

60

77 

76

71 

70

18

46 

45

50

61

60

78 

77

71 

70

19

46 

45

48

60 

59

78 

77

71

70

20

46

45

49

60 

59

77 

76

71 

70
SAN JOAQUIN RIVER BASIN Continued 

11-3033. STANISLAUS RIVER NEAR RIPON, CALI

LOCATION. Lat 37°40'15", long 121°20'18", approximately 3.7 miles downstream from gaging station at 

tion of Bacon and Gates Roads.

RECORDS AVAILABLE. Chemical analyses: October ig53 to September 1966. 

REMARKS. Records of discharge data furnished by California State Department of Water Resources.

Chemical analyses, parts per million, October 1965 t

Date 

of 

collection

Oct. 5, 1965.....

Jan. 4, 1966. ....

Fe6. 8. ..........

MaiK 8.., ;, v .... 

Apr. 5, ,.';',y, .... May ,5, .'.,;v;f . .....

June swvrl. ......

Mean 

discharge 

(cfs)

331 

472 

944 

1800

1730 

243 

188 

157 

157

Silica 

(SiO,)

28

Iron 

(Fe)

Calcium 

(Ca)

22

Magnesium 

(Mg)

9.7

Sodium 

(Na)

9.1 

7.1 

4.6 

3.8

4.1 

12 

14 

12 

17

Potassium 

(K)

1.9

Bicarbonate 

(HCO,)

82 

76 

52 

45

51 

124 

127 

127 

147

Carbonate

(cog

0 

0 

0 

0

0 

0 

2 

0 

0

Sulfate 

(S0«)

10

Chloride 

(CD

3.6 

3.2 

2.2 

1.6

1.8 

7.3 

8.2 

7.3 

8.0

Fluoride 

(F)

N

tra

(N

4
SAN JOAQUIN RIVER BASIN Continued

11-3035. SAN JOAQUIN RIVER NEAR VERNALIS, CAL

(International Hydrological Decade River Stat

LOCATION (revised). Lat 37°40'34", long 121°15'51", at gaging station in El Pescadero Grant, 80 feet 

stream from Stanislaus River, and 3.2 miles northeast of Vernalis, San Joaquin County. 

DRAINAGE AREA (revised). 13,540 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1966.

Water temperatures: March 1951 to September 1966.

Sediment records: November 1956 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 85°F June 14, Aug. 9, Sept. 2; minimum, 44°F Jan. 2

Sediment concentrations: Maximum daily, 252 ppm July 12; minimum daily, 39 ppm Jan. 21, 27, Feb. 2

Sediment loads: Maximum daily, 3,440 tons Dec. 4; minimum daily, 80 tons Aug. 12. 

EXTREMES, 1951-66. Water temperatures: Maximum, 85°F June 14, Aug. 9, Sept. 2, 1966; minimum, 37°F 

Sediment concentrations (1956-66): Maximum daily, 1,590 ppm Dec. 25, 1964; minimum daily, 9 ppm Ja

Sediment loads (1956-66): Maximum daily, 54,100 tons Dec. 25, 1964; minimum daily, 2 tons Aug. 10, 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Dec. 1...........

Feb. 8...........

Apr. 6....... ....

Sept . 7 ..........

Mean 

discharge 

(cfs)

2930 

2660 

6500 

8810 

5640

2500 

940 

785 

780 

573 

686

Silica 

(810,)

20 

16 

27 

24 

26

Iron 

(Fe)

0.01

.00 

.00 

.00

Calcium 

(Ca)

46 

28 

56 

58 

58

Magnesium 

(Mg)

19 

46 

24 

32 

30

Sodium

(Na)

40 

42 

19 

32 

60

80 

94 

67 

119 

140 

146

Pota.s 

slum 

(K)

7.4 

5.1 

4.8 

5.4 

4.5

Bicarbonate 

(HCO,)

87 

73 

53 

77 

91

110 

150 

183 

178 

196 

196

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

82 

95 

81 

92 

105

Chloride 

(Cl)

56 

64 

22 

36 

74

112 

132 

104 

180 

220 

225

Fluoride 

(F)

0.0 

.2 

.3 

.2 

.3

Nitrat

(NO

6

3

5.

7.

7

A Residue at 180"C.
SAN JOAQUIN RIVER BASIN Continued

11-3035. SAN JOAQUIN RIVER NEAR VERNALIS, CALIF. Co

Temperature (°F) of water, water year October 1965 to Se

Month

November ..... 

December .....

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

September .....

Day

1

62 

60 

51

48 

49 

54

69 

73 

69

78 

75 

83

2

62 

57 

52

46 

50 

52

70 

71 

66

72 

76 

85

3

63 

65

50

45 

48 

50

66 

72 

67

75 

84 

84

4

62

57 

49

45 

50 

58

72 

70 

74

75 

84 

83

5

64 

62

50

46 

51 

58

68 

71 

78

80 

84 

84

6

64 

62

49

46 

50 

58

68

70 

78

74 

77 

82

7

63 

62 

50

48 

48 

61

68 

72

70

77 

72 

83

S

65 

62

49

51 

50 

60

67 

72 

73

72 

79 

78

9

65 

59 

49

52

48 

60

65 

72 

78

76 

85 

72

10

64 

57 

49

50 

49 

60

65

70 

74

71 

79 

79

11

64

60 

50

51 

48 

55

66 

68

78

71 

75 

70

12

63

60

50

51

48 

60

68

70 

78

68 

74 

68

13

65 

58 

49

49 

50 

61

65

75 

78

74 

78

14

62

56 

48

49

50 

60

68

70 

85

68 

74 

68

15

62

59 

48

51 

47 

60

70 

70 

82

68 

75 

81

16

60 

61 

48

49 

49 

58

73 

70 

78

71 

74 

71

17

60 

60 

48

49 

50 

55

74 

72 

75

70 

78 

72

18

56 

60 

47

46 

50 

55

72 

80 

80

73 

78

70

19

61

60 

47

46

49 

60

64 

81 

78

74 

74 

72

20

59 

60 

45

45 

51 

62

62

76 

75

82 

72 

70

21

59 

57 

47

44 

50 

57

64 

80 

70

84 

74 

68

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

July 7.............

Time 

(24 hour)

0815 

1220 

0950 

1110 

1110

1200 

1145 

1310 

1140 

1120

Water 

temperature

(°F)

64 

62 

51 

51 

67

71 

75 

77 

79 

71

Sampling 

point

Discharge

(cfs)

3110 

3010 

6410 

5080 

860

1280 

561 

469 

521 

744

Sediment 

concentration 

(ppm)

77 

45 

154 

81 

86

119 

148 

148 

92 

59

Sediment 

discharge 

(tons per day)

647 

366 

2660 

1110 

200

411 

224 

187 

129 

118

Perce

0.002 0.004 0.00
PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN Cont inued

11-3035. SAN JOAQUIN RIVER NEAR VERNALIS, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

It..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

2800

2910

2990

3030

2970

2930

3100

3150

3150

3030

3030

3130

3290

3420

3610

3850

3760

3550

3460

3340

3160

2570

2270

2150

2060

2010

2060

1990

2460

2960

3040

91270

Suspended sediment

Mean

concentration 

(ppm)

83

76

82

80

78

90

97

86

99

90

86

84

84

94

94

80

69

66

72

65

63

62

62

52

57

49

59

60

7»

56

47

~

Tons

per 

day

627

597

662

654

625

712

812

731

842

736

720

710

746

668

916

832

704

633

673

5S6

538

430

380

302

317

2*6

326

322

522

464

B 386

18641

JANUARY

7330

6500

9330

9590

8810

7570

6S30

5950

5600

5350

5210

5430

5560

5460

5370

4910

4650

4530

4500

4420

4350

4230

4060

3S90

3130

3020

3020

2980

2»40

3160

4190

169310

125

119

120

107

103

92

78

67

68

59

56

59

55

55

64

68

54

50

51

45

39

40

43

48

48

43

39

45

43

50

86

2470

2730

3020

2770

2450

1880

1380

1060

1030

852

788

865

826

814

928

901

678

612

620

537

498

B 457

474

465

406

351

318

362

341

427

97J

32263

NOVEMBER

Mean 

discharge

(cfs)

3010

2850

2660

2650

2640

2650

2600

2520

2430

2510

2660

2860

3000

3120

3130

3070

3150

3490

3620

3710

4020

4310

4450

4770

5190

5510

5630

5700

5670

5730

109310

Suspended sediment

Mean

concentration 

(ppm)

43

51

50

46

55

45

52

53

52

48

55

46

50

53

46

46

65

69

70

66

67

66

60

97

85

76

78

87

89

66

-

Tons

per 

day

349

392

359

329

392

322

365

361

341

325

395

355

405

446

369

398

553

650

684

661

727

766

721

1250

1190

1130

1190

1340

1360

1360

19507

FEBRUARY

5050

5010

4910

4780

4640

4650

5330

5640

4950

4700

4690

4660

4530

4420

4160

3»40

3660

3540

3770

3580

3410

3330

3160

2920

2860

2840

2800

2710

« 

114960

86

66

66

59

59

62

66

78

55

54

49

45

41

40

50

59

52

57

59

56

52

44

44

48

48

44

39

45

 

~

1170

893

875

761

739

778

1240

1190

735

665

620

566

501

477

564

612

514

545

601

541

479

396

375

378

371

337

295

329

17567

DECEMBER

Mean 

discharge

(cfs)

6500

7370

7950

8670

9270

9570

9690

9410

8720

7220

6180

5810

5610

5430

5390

5330

5270

5490

5630

5520

5500

5590

5620

5540

4860

4160

3820

3620

4160

4390

5720

193230

Suspended sediment

Mean

concentration 

(ppm)

152

154

159

147

127

119

124

100

107

85

67

56

61

73

59

50

49

61

69

62

53

56

53

57

54

60

53

57

76

89

116

Tons

per 

day

2670

3060

3410

3440-

3180

3070

3240

2540

2520

1660

1120

910

924

1070

859

720

697

904

1050

924

7»7

845

604

853

709

677

547

568

654

1050

1790

47472

MARCH

2720

2850

3020

3020

3010

2970

2670

2500

2460

2490

2450

2090

1960

1890

1830

1810

1710

1630

1690

1480

1380

1240

1220

1220

1170

1140

1140

1200

1200

1120

1080

59360

50

55

59

49

53

46

45

50

46

46

49

47

48

49

57

52

49

44

52

45

47

51

58

60

56

56

63

69

72

70

70

367

423

481

400

431

369

324

338

319

309

324

265

254

250

262

254

226

194

237

180

175

171

191

198

177

179

194

224

233

212

204

8385

B Computed from estimated-concentration graph.
I 398 QUALITY OF SURFACE WATERS, 1966

SAN JOAQUIN RIVER BASIN Continued

11-3035. SAN JOAQUIN RIVER NEAR VERNALIS, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4.«

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

IS..

16..

IT..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

A..

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..

Total

APRIL

Mean 

discharge

(cf«)

1130

1080

1020

1010

99S

940

888

868

970

1220

1380

1440

1360

1200

1150

1040

905

888

892

848

804

820

852

892

888

820

784

776

820

808

29448

Suspended sediment

Mean 

concentration 

(ppm)

80

78

87

90

90

98

97

96

114

126

124

133

125

123

144

186

206

177

168

150

162

175

153

148

150

158

146

141

155

139

-~

--

Tons 

per 

day

2*4

227

240

245

232

249

233

225

299

422

462

517

459

399

447

522

503

42*

405

343

352

387

352

356

360

350

309

295

3*3

303

"

10504

JULY

393

429

469

509

5*9

509

457

409

433

433

493

481

489

*69

501

517

SIT

549

901

429

362

373

334

377

45 J

369

391

326

323

326

4«9

13*31

163

171

164

168

203

240

200

234

164

198

246

252

242

195

194

166

142

234

206

208

232

245

216

211

222

210

191

117

125

104

106

173

198

208

231

301

330

2*7

258

192

2*2

327

327

317

2*7

2*2

232

198

34*

27»

2*1

227

247 in

215

272

209

iai

103

109

92

1*0

71**

MAY

Mean 

discharge

(cfs)

826

852

794

785

780

826

826

862

902

1020

1140

1120

1060

1050

1060

1060

1000

950

888

834

798

834

852

808

744

66*

690

610

695

731

695

26756

Suspended sediment

Mean 

concentration 

(ppm)

138

153

137

139

140

130

132

144

138

139

131

126

127

139

147

131

177

207

201

203

20*

199

202

178

125

119

135

1*2

130

158

157

-

Tons 

per 

day

308

332

294

295

295

290

294

335

336

383

403

381

363

394

421

375

478

531

482

457

4*0

4*8

*65

388

251

213

252

234

2**

312

295

11009

AUGUST

650

628

573

477

425

401

405

425

437

409

358

389

409

4*9

505

Ml

429

385

381

377

4*9

565

589

501

529

553

632

659

708

482

6*1

15*»7

77

62

62

76

102

136

128

101

96

109

93

76

78

88

94

114

130

143

133

95

92

99

84

90

88

86

87

80

85

88

91

-

135

105

96

98

117

1*7

1*0

116

113

120

90

80

86

107

128

1*8

1*9

1*9

137

97

112

151

13*

122

126

128

1*8

1*2

142

162

157

3*02

JUNE

Mean 

discharge

(cfs)

605

597

636

614

700

736

776

780

731

736

641

628

601

581

43T

3T3

3T3

393

465

5*9

*77

*13

481

529

525

517

565

585

581

*«9

17094

Suspended sediment

Mean 

concentration 

(ppm)

194

140

139

132

122

135

125

122

117

126

124

117

135

155

159

153

146

132

133

164

158

144

170

127

125

151

1*5

138

143

163

-

Tons 

per 

day

252

226

239

219

231

268

262

257

231

250

215

198

219

243

188

154

147

140

167

243

203

161

221

181

177

211

221

218

224

206

6372

SEPTEMBER

597

593

585

672

718

682

686

636

65*

699

718

7*0

7**

695

695

731

713

72«

776

780

790

808

830

803

780

803

803

776

780

7*9

21TM

66

59

69

62

61

65

81

62

5*

55

58

59

64

66

6*

60

63

66

69

72

83

70

65

64

67

42

69

60

75

71

«_

-

106

94

109

112

118

120

150

106

95

98

112

118

133

124

120

118

121

12*

145

192

177

153

146

139

1*1

13*

137

126

158

150

38*1

Total discharge for year - (cfs-days), 

Total load for year (tons)..........

855224

186807
SAN JOAQUIN RIVER fltftglN Continued 

11-3042. SAN JOAQUIN RIVER AT MOSSDALE, CALIF

LOCATION.~Lat 37°47'10", long 121°18'25", at boat landing at Mossdale Bridge at Mossdale, San Joaqui

northeast of Tracy.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

June 7 ...........

Mean 

discharge 

(cfs)

Silica 

(SlOj)

17

Iron 

(Fe)

Calcium 

(Ca)

54

Magnesium 

(Mg)

27

Sodium 

(Ha)

40 

48 

17 

15

41 

71 

127 

113 

129

Potassium

(K)

2.6

Blcarbonate 

(HCOJ

91 

84 

52 

50

74 

107 

164 

180 

180

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

6

Sulfate 

(S04 )

83

Chloride 

(CD

55 

69 

20 

17

48 

98 

185 

185 

204

Fluorlde 

(F)

Nitrat

(NO

4.

11-3048. SAN JOAQUIN RIVER AT GAHTOOD BRIDGE, NEAR STOC

LOCATION. Lat 37°S5'45", long 121°19'38", at boat landing at Garwood Bridge on State Highway 4, oppo

San Joaquin County.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. NO discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 7, 1965.....

Jan. 4, 1966.....

Apr. 5...........

June 7 ...........

Mean 

discharge

(cfs)

Silica 

(SiOa)

7.1

Iron 

(Fe)

Calcium 

(Ca)

43

Magnesium 

(Mg)

20

Sodium

(Na)

42 

39 

19 

14

34 

66 

98 

100 

95

Potassium 

(K)

3.3

Bicarbonate 

(HCO,)

92 

72 

54 

47

70 

101 

136 

144 

138

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

2

Sulfate 

(S04 )

69

Chloride 

(Cl)

56 

54 

22 

15

40 

88 

140 

150 

154

FlUOride

(F)

Ni

trat

(NO

5
SAN JOAQUIN RIVER BASIN Continued 

11-3085.5. CALAVERAS RIVER ABOVE NEW HOGAN DAM

LOCATION. Lat 38°10'40", long 120°47'20", approximately 6 miles upstream from Hogan Dam, Calaveras 

Valley Springs.

RECORDS AVAILABLE. Chemical analyses: January 1965 to July 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Jan. 3, 1966.....

Mar. 7....... ....

July 11.... ......

Mean 

discharge

(eta)

Silica 

(S102)

16

Iron 

(Fe)

Calcium

(Ca)

27

Magnesium 

(Mg)

6.9

Sodium

(Na)

9.5 

9.3 

6.8 

5.5 

4.8

7.2 

5.4 

7.1 

8.6 

10

Potassium 

(K)

1.8

Blcarbonate 

(HCOJ

120 

133 

93 

79 

59

102 

105 

111 

118 

142

Carbonate 

(COJ

3

0 

5 

0 

0

0 

0 

0 

4 

0

Sulfate

(S04)

14

Chloride 

(Cl)

9.1 

9.2 

6.5 

4.8 

3.0

3.9 

5.3 

4.6 

6.3 

9.0

Fluorlde 

(F)

Ni

tra

(NO

0
SAN JOAQUIN RIVER BASIN Continued 

11-3089. CALAVERAS RIVER BELOW NEW HOGAN DAM, NEAR VALLEY 

LOCATION. Lat 38°08'53", long 120°49'26", at gaging station at county road bridge, 0.5 mile upstream 

Calaveras County, and 3.0 miles south of Valley Springs. 

DRAINAGE AREA. 363 square miles. 

RECORDS AVAILABLE. 'Chemical analyses: January 1964 to August 1966 (discontinued).

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 4, 1965.....

Dec. 2..... ......

Mar. 7....... ....

May 3 ............

Aug. 8...........

Mean 

discharge

(cfs)

97 

32 

32 

178 

30

31 

56 

171 

136 

174 

A142

Silica

(SiOa)

10

Iron 

(Fe)

Calcium 

(Ca)

21

Magnesium 

(Mg)

6.4

Sodium

(Na)

5.0 

4.8 

5.1 

5.2 

5.5

5.6

5.4 

5.1 

5.1 

5.5 

5.3

Potassium 

(K)

1.8

Bicarbonate 

(HCOJ

76 

83 

84 

84 

89

88 

87 

87 

91 

93 

92

Carbonate 

(CO,)

0

1

5 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

13

Chloride 

(Cl)

2.8 

2.8 

3.9 

3.8 

3.3

2.2 

4.5 

2.2 

3.2 

3.4 

3.4

Fluoride

(P)

Nitrate 

(NO

1.5

A Discharge at time of sampling.
SAN JOAQUIN RIVER BASIN Continued 

11-3095. CALAVERAS RIVER AT JENNY LIND, CALIF

LOCATION. Lat 38°05'20", long 120°51'53", at bridge on Milton Road 70 feet upstream from gaging stat

6.5 miles downstream from Cosgrove Creek. 

DRAINAGE AREA. 393 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1954 to May 1966 (discontinued).

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 13, 1965. . . .

Feb. 1........ ...

Apr. 11..........

May 4. ...........

Mean 

discharge 

(cfs)

26 

40 

37 

1430

76 

37 

66 

150

Silica 

(Si02)

9.0

Iron 

(Fe)

Calcium 

(Ca)

20

Magnesium 

(Mg)

7.3

Sodium 

(Na)

5.0 

4.6 

5.2 

4.8

7.7 

7.1 

5.7 

5.0

Potassium 

(K)

2.1

Blearbonate 

(HCO,)

78 

80 

86 

85

90 

107 

88 

69

Carbonate 

(CO,)

0 

0 

0 

0

0

1

2

0

SuUate 

(S0<)

10

Chloride 

(Cl)

2.7 

2.2 

4.1 

3.4

6.5 

5.9 

2.8 

4.1

Fluorlde 

(F)

Nitrate 

(NO

1.6

11-3105. CALAVERAS RIVER NEAR STOCKTON, CALIF.

LOCATION. Lat 37°59'18", long 121°15'48", at gaging station at Central California Traction Railroad b

northeast of Stockton, San Joaquin County.

RECORDS AVAILABLE. Chemical analyses: October 1961 to June 1966 (discontinued). 

REMARKS. Records of discharge furnished by California State Department of Water Resources. Flow incl

most of the year.

Chemical analys in parts per million, October 1965 to 

Date 

of 

collection

June 1 ...........

Mean 

discharge 

(cfs)

7.5 

138 

68 

2.5 

1.4 

33 

14

Silica 

(S102)

10

Iron 

(Fe)

Calcium 

(Ca)

19

Magnesium 

(Mg)

6.9

Sodium 

(Na)

5.2 

7.1 

6.2 

7.6 

6.5 

6.0 

7.0

Potassium 

(K)

2.2

Blcarbonate 

(HCO,)

77 

87 

49 

96 

92 

89 

92

Carbonate 

(CO,)

0 

0 

0

1 

1

0 

0

SuUate 

(SO.)

11

Chloride 

(Cl)

4.3 

7.2 

5.0 

7.2 

3.6 

5.0 

5.3

Fluorlde 

(F)

Nitrate 

(NO,)

0.5
11-3112. STOCKTON SHIP CHANNEL NEAR RINDGE PUMP ON RINDGE 

LOCATION. Lat 37°58'15", long 121°25'15", at boat landing at ship channel downstream from confluenc

station, and approximately 9.6 miles northwest of Stocfcton, San Joaquin County. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

Chemical analyse in parts per million, October 1965 to 

Date 

of 

collection

June 7 ...........

Mean 

discharge 

(cfs)

Silica 

(S10,)

6.4

Iron

(Fe)

Calcium 

(Ca)

26

Magnesium

(Mg)

12

Sodium

(Na)

68 

62 

35 

32

50 

85 

56 

48 

29

Potassium 

(K)

2.7

Bicarbonate 

(HCO,)

137 

110 

74 

63

85 

116 

98 

91 

90

Carbonate 

(CO,)

3 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

41

Chloride

(Cl)

93 

94 

42 

38

66 

110 

80 

73 

39

Fluoride 

(F)

Nitrate 

(NO

1.

11-3127. OLD RIVER AT SOUTH TIP OF FABIAN TRACT, NEAR T

LOCATION. Lat 37°47'20", long 121°28'30", at southern tip of Fabian Tract at trash rack of pump inta

Bethany, and 6.1 miles north of Tracy, San Joaquin County. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 t

Date 

of 

collection

June 7 ...........

Mean 

discharge

(cfs)

Silica 

(SiOa)

7.3

Iron 

(Fe)

Calcium 

(Ca)

64

Magnesium

(Mg)

29

Sodium

(Na)

50 

48 

38 

22

63 

76 

135 

139 

140

Potassium 

(K)

6.0

Bicarbonate 

(HCOJ

102 

90 

80 

57

96 

112 

184 

192 

204

Carbonate 

(CO,)

1 

0 

0 

0

0 

0 

0 

0

6

Sulfate 

(SO.)

91

Chloride

(Cl)

73 

68 

45 

26

82 

103 

195 

224 

258

Fluoride 

(F)

Nitrate 

(NO

2.
SAN JOAQUIN RIVER BASIN Continued 

11-3129.9. DELTA-MENDOTA CANAL ABOVE TRACT PUMPING PLANT, NE

LOCATION. Lat 37°48'45", long 121 0 34'40", at Byron Road bridge, 1.1 miles upstream from Tracy Pumpin

northwest of Tracy, San Joaquin County.

RECORDS AVAILABLE. Cbemical analyses: October 1953 to September 1966. 

REMARKS. Records of discharge given for Delta-Mendota Canal at Tracy Pumping Plant, near Tracy. No 

station.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Mar. 8.... .......

June 8 ...........

Mean 

discharge

(cfs)

1882 

1194 

0 

870

2047 

2596 

3671 

3690

Silica 

(SIOa)

14

Iron

(Fe)

Calcium 

(Ca)

15

Magnesium 

(Mg)

6.4

Sodium

(Na)

65 

84 

50 

65

69 

43 

18 

20

Potassium 

(K)

1.3

Bicarbonate 

(HCOJ

115 

129 

87 

96

104 

85 

64 

79

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0

Sulfate 

(SO,)

18

Chloride 

(Cl)

91 

131 

66 

83

95 

55 

22 

19

Fluorlde 

(F)

Nitrate 

(NO

1.3
11-3130.1. DELTA-MENDOTA CANAL BELOW TRACT PUMPING PLANT, NE

LOCATION. Lat 37°46'25", long 121°34'50" ) at canal bridge 4.98, 0.5 mile downstream fro

downstream from Tracy Pumping Plant, and 8.5 miles northwest of Tracy, San Joaquin C

RECORDS AVAILABLE. Chemical analyses: July 1959 to June 1963.

Water temperatures; July 1959 to September 1966.

Sediment records: July 1959 to June 1960, October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F Aug. 1, 2, 7, 10, 13.

Sediment concentrations: Maximum daily, 204 ppm Aug. 3; minimum daily, no flow on ma

Sediment loads: Maximum daily, 2,290 tons Aug. 3; minimum daily, 0 ton on many days 

EXTREMES, 1959-66. Water temperatures: Maximum, 81°F July 25, 1960; minimum (1960-63, 

Sediment concentrations (1959-60, 1962-66): Maximum daily, 500 ppm Mar. 1, 1965; min

1962-66.

Sediment loads (1959-60, 1962-66): Maximum daily, 3,220 tons Mar. 1, 1965; minimum d

REMARK. No flow Nov. 30 to Jan. 3, Jan. 5-12, 16-29.

Temperature (°F) of water, water year October 1965 to Sep

Month

November ..... 

December .....

June ..........

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

September .....

Day

1

65 

65

52

48 

52

65 

69 

68

76

79 

73

2

65 

63

48 

51

66 

68

79 

73

3

62

48 

52

68

67

75 

77 

73

4

63

47 

52

68 

68

78 

72

5

67 

62

46

52

67 

68

78 

71

6

66 

64

49

53

67 

66

74 

78 

71

7

65

63

49

55

68 

67

74 

79

8

63 

63

50 

54

67 

66

78 

71

9

64 

62

49

55

65 

66

75 

77 

70

10

65 

61

46 

56

64

66

79 

70

11

64 

60

49

56

64 

67

78

71

12

63

60

50 

57

66 

67

78 

69

13

63

58

48

58

67 

66

76 

79

70

14

62 

59

49

57

68 

66

77 

70

15

61 

58

49

58

67 

67

77 

71

16

64 

57

48 

59

66 

67

75 

76 

71

17

63 

58

50 

57

65 

69

73 

69

18

65

57

49

58

65

70

76 

74 

70

19

66

57

51 

58

65

72

76 

72 

69

20

67 

56

50 

58

65

72

75 

73 

70

21

65 

55

51 

58

66

70

75 

72 

69

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, plpet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

May 16..... .......

Aug. 15. ..........

Time 

(24 hour)

1012 

1110 

1325 

1425 

1335 

1445 

1350

Water 

temperature 

(°F)

68 

52 

64 

67

74 

80

Sampling 

point

Discharge 

(cfs)

A1882 

1658 

2588 

2909 

3641 

4151 

4456

Sediment 

concentration 

(ppm)

43 

35 

58 

49 

69 

67 

76

Sediment 

discharge 

(tons per day)

218 

157 

405 

385 

678 

751 

914

Perce

0.002 0.004 0.008 

A Daily mean discharge.
QUALITY OF SURFACE WATERS, 1966

SAN JOAQUIN RIVER BASIN Continued 

11-3130.1. DELTA-MENDOTA CANAL BELOW TRACY PUMPING PLANT, NEAR TRACY, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs) 

I/

2020

1810

1880

1880

1880

1770

1780

1850

1890

1920

1920

1920

1850

1850

1850

1810

1770

1760

1770

1640

1660

1660

1660

1*60

1470

1500

1400

1360

1290

1190

1210

52670

Suspended sediment

Mean

tration 

(ppm)

52

44

40

40

50

62

50

56

49

70

57

40

42

43

48

44

41

47

46

56

50

40

37

38

42

38

32

35

33

37

37

-

Tons

per 

day

284

215

203

203

254

296

240

280

250

363

295

207

210

215

240

214

196

223

220

248

224

179

166

150

167

154

121

129

115

119

121

6501

JANUARY

0

0

0

44

0

0

0

0

0

0

0

0

134

69

108

0

0

0

0

0

0

0

0

0

0

0

0

0

0

644

867

1866

0

0

0

10

0

0

0

0

0

0

0

0

15

11

12

0

0

0

0

0

0

0

0

0

0

0

0

0

0

94

120

262

NOVEMBER

Mean 

discharge 

(f?

1190

1190

960

959

929

927

930

930

645

646

646

645

610

613

611

502

503

504

395

395

394

394

395

395

358

357

213

213

143

0

17592.0

Suspended sediment

Mean

concentration

(ppm)

36

33

28

28

26

29

26

21

24

37

54

49

43

39

32

28

34

25

25

18

40

58

58

52

59

52

38

37

41

-

Tons

per 

day

116

106

73

73

65

73

65

53

42

65

94

85

71

65

53

38

46

34

27

19

43

62

62

55

57

50

22

21

16

0

1651

FEBRUARY

869

867

869

870

872

872

872

870

540

251

132

476

475

475

615

552

867

867

868

865

928

962

997

1340

1470

1480

1470

1410

24001

58

51

45

35

37

59

50

35

32

29

23

24

24

28

40

48

34

36

36

31

28

27

26

29

32

33

30

-

120

136

120

106

82

87

139

117

51

22

10

30

31

31

46

60

112

80

84

84

78

73

73

94

115

128

131

114

2354

DECEMBER

Mean 

discharge 

«*>

0

Suspended sediment

Mean

tration

(ppm)

Tons

per 

day

0

MARCH

1590

1710

1660

1680

1540

1540

1610

2050

2110

2250

2510

2520

2590

2620

2620

2620

2710

2680

2680

2670

2670

2740

2760

2860

2850

2920

2920

2920

2850

2790

2770

75010

48

42

38

49

54

54

60

74

62

69

71

94

120

104

81

96

161

139

118

112

112

104

96

70

71

63

67

66

60

75

77

-

206

194

170

222

225

225

261

410

353

419

481

640

839

736

573

679

1180

1010

854

807

807

769

715

541

546

497

528

520

4*2

565

576

17010

I/ Daily discharge values are shown to three places because of computer round 

refinement of values, see Part 1, Vol. 2 of this report.
PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN Continued

11-3130.1. DELTA-MENDOTA CANAL BELOW TRACY PUMPING PLANT, MEAR TRACY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

13..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

digcharge

(cfs)

2590

2520

2530

2530

2600

2600

2590

2520

2530

2590

2590

2520

2520

2580

2740

2910

2920

2850

3110

3070

3430

3660

3550

3500

3490

3590

3740

3940

3940

3930

90180

Suspended sediment

Mean

concentration 

(ppm)

84

95

95

84

61

67

68

64

65

89

100

77

74

95

95

90

90

94

106

112

94

89

99

105

101

96

101

103

89

126

~

Tons

per 

day

587

646

649

574

428

470

476

435

444

622

699

524

503

662

703

707

710

723

890

928

871

879

949

992

952

931

1020

1100

947

1340

22361

JULY

4220

4290

4430

4440

4380

4150

4150

4140

4130

4130

4130

4130

4140

4200

4310

4440

4440

4430

4380

4440

4440

4440

4430

4690

4430

4650

4670

4670

4800

4810

4790

136320

120

114

110

110

119

133

93

92

116

123

119

114

109

108

109

113

111

103

122

99

87

104

109

80

61

71

125

117

69

94

104

-

1370

1320

1320

1320

1410

1490

1040

1030

1290

1370

1330

1270

1220

1220

1270

1350

1330

1230

1440

1190

1040

12JO

1300

1010

730

891

1580

1480

894

1220

1350

38555

MAY

Mean 

discharge

(cfs)

4670

3640

3660

3670

3660

3570

3500

3500

3450

2780

2520

2520

2640

2830

2890

2910

2910

2920

2990

3070

3140

3280

3140

3140

3170

3170

3170

3170

3880

3870

3160

100590

Suspended sediment

Mean

concentration 

(ppm)

154

122

104

96

121

112

118

128

108

80

93

97

79

76

97

102

87

84

70

55

60

67

72

130

148

150

114

121

128

126

108

~

Tons

per 

day

1940

1200

1030

951

1200

1080

1120

1210

1010

600

633

660

563

581

757

801

684

662

565

456

509

593

610

1100

1270

1280

976

1040

1340

1320

921

22239

AUGUST

4930

4800

4160

4150

4220

4270

4270

4410

4450

4460

4410

4480

4480

4470

4460

4440

4230

4320

4320

4380

4380

4190

3900

3830

3730

3420

3310

3150

3080

2810

2690

126600

100

110

204

95

117

90

75

95

115

97

96

97

106

114

100

93

127

112

141

145

104

68

53

54

56

73

68

89

78

40

100

-

1330

1430

2290

1060

1330

1040

865

1130

1380

1170

1140

1170

1280

1380

1200

1110

1450

1310

1640

1710

1230

769

558

558

564

674

608

757

649

303

726

33811

JUNE

Mean 

discharge

(cfs)

3490

3500

3560

3560

3560

3720

3810

3690

3710

3740

3730

3790

3790

3730

3750

3970

3960

3960

4620

3640

4160

Suspended sediment

Mean

tration 

(ppm)

98

102

103

96

86

85

88

85

81

83

85

84

85

87

89

91

93

97

98

77

110

4210 138

4370 | 143

4330

4260

4130

3980

3980

3990

4150

116840

136

129

129

130

122

111

127

-

Tons

per 

day

923

964

990

923

827

854

905

847

811

838

856

860

870

876

901

975

994

1040

1220

757

1240

1570

1690

1590

1480

1440

1400

1310

1200

1420

32571

SEPTEMBER

2520

2350

2020

2020

2020

2010

2600

2620

2690

2630

2630

2560

2390

2270

1950

1950

2020

2050

2020

1920

1850

1840

1930

1850

1920

1930

1960

1970

2140

2070

64700

96

71

77

86

93

90

74

97

114

151

97

92

78

61

55

47

58

95

170

123

157

127

99

93

84

85

118

120

102

70

653

450

420

469

507

488

519

686

828

1070

689

636

503

374

290

247

316

526

927

638

784

631

516

465

435

443

624

638

589

391

16752

Total discharge for year (cfs-days) .................................................... 806369

Total load for year (tons) ............................................................. 194067
SAN JOAQUIN RIVER BASIN Continued 

11-3130.5. DELTA-MEN DOT A CANAL NEAR MENDOTA, CAL

LOCATION. Lat 37°46'25", long 121°34'50", approximately 1 mile upstream from control gates into Hendo

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to J

Date 

of 

collection

Oct. 11, 1965. .. .

Jan. 10, 1966....

Mean 

discharge

(cfs)

Silica 

(SiO,)

14

Iron 

(Fe)

Calcium 

(Ca)

16

Magnesium 

(Mg)

7,3

Sodium

(Na)

50 

68 

66 

61

119 

86 

65 

22 

96

Potassium 

(K)

1.4

Bicarbonate 

(HCOJ

96 

105 

94 

84

134 

116 

105 

68 

144

Carbonate 

(CO,)

0 

0 

0 

4

0 

0 

0 

0 

4

Sulfate 

(S0«)

22

Chloride

(ci)

69 

100 

86 

78

143 

118 

92 

28 

155

Fluoride 

(F)

Nitrate 

(NO,)

1.5
11-3132. GRANT LINE CANAL AT TRACT ROAD BRIDGE, C

LOCATION. Lat 37°49'15", long 121°27'01", at bridge on Tracy Road, approximately 5 miles north of Tra

RECORDS AVAILABLE. Chemical analyses: October 1958 to June 1966 (discontinued). 

REMARKS. No discharge records available..

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 7, 1965.....

May 2 ............

June 7 ...........

Mean 

discharge

(cfs)

Silica 

(Si02)

11

Iron 

(Fe)

Calcium 

(Ca)

58

Magnesium 

(Mg)

28

Sodium

(Na)

42 

40 

20 

14

52 

62 

122 

127 

125

Potassium 

(K)

4.6

Bicarbonate 

(SCO,)

92 

69 

56 

48

88 

96 

162 

182 

176

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

8

Sulfate 

(SO.)

81

Chloride 

(Cl)

60 

56 

24 

15

67 

84 

170 

207 

215

Fluoride

(F)

Nitrate 

(NO

1.7

11-3132.5. OLD RIVER AT CLIFTON COURT FERRY, NEAR BETHA

LOCATION. Lat 37°49'28", long 121°33'05", at Clifton Court Ferry Crossing, 0.3 mile downstream from 

3.6 miles north of Bethany, San Joaquin County.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Jan. 4, 1966. .... 

Feb. 8.... .......

June 7 ...........

Mean 

discharge

(cfs)

Silica 

(Si02)

13

Iron 

(Fe)

Calcium 

(Ca)

21

Magnesium 

(Mg)

8.6

Sodium

(Na)

42 

43 

32 

20

62 

66 

50 

32 

18

Potassium 

(K)

1.5

Bicarbonate 

(HCO,)

91 

75 

72 

52

94 

100 

92

77 

78

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

28

Chloride 

(Cl)

60 

64 

40 

24

79 

90 

71 

44 

22

Fluorlde

(F)

Nitrate 

(NO,

1.4
SAN JOAQUIN RIVER BASIN Continued 

11-3133.5. INDIAN SLOUGH NEAR BBENTWOOD, CALIF

LOCATION. Lat 37°55'05", long 121°37'20", at East Contra Costa Irrigation

southeast of Brentwood, Contra Costa County.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

District Pumping station on 

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 14, 1965.... 

Nov. 9...........

June 3 ...........

Mean 

discharge

(cfs)

Silica 

(SiO,)

14

Iron 

(Fe)

Calcium 

(Ca)

16

Magnesium 

(Mg)

7.3

Sodium 

(Na)

92 

138 

94 

138

250 

224 

40 

23 

18

Potassium

(K)

1.5

Bicarbonate 

(HCOJ

152 

314 

200 

185

282 

264 

95 

75 

78

Carbonate 

(COJ

5 

12 

0 

0

12 

0 

0 

0 

0

Sulfate 

(S04 )

21

Chloride 

(Cl)

118 

169 

115 

159

270 

240 

46 

26 

18

Fluoride 

(F)

Nitrate 

(NO,

1.4
11-3134. OLD RIVER AT ORWOOD BRIDGE, NEAR MIDDLE RIVE

LOCATION. Lat 37°56'24", long 121°33'32", at Atchison, Topeka and Santa Fe Railroad bridge, 1.6 mile

east of Brentwood.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REHARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 14, 1965....

Jan. 6, 1966.... .

June 3 ...........

Mean 

discharge 

(cfs^

Silica 

(Si02)

14

Iron 

(Fe)

Calcium 

(Ca)

13

Magnesium 

(Mg)

6.0

Sodium

(Na)

27 

46 

26 

26

74 

84 

22 

12 

15

Potassium 

(K)

1.1

Bicarbonate 

(HCO,)

94 

86 

58 

56

88 

88 

75 

61 

75

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

12

Chloride 

(Cl)

32 

67 

32 

31

97 

113 

46 

14 

15

Fluoride

(F)

Ni

trat

(NO

0

11-3134.2. ROCK SLOUGH NEAR KNIGHTSEN, CALI

LOCATION. Lat 37°58'35", 121°38'25", at Contra Costa Canal intake at the end of Tule Lane, 2 miles 

southeast of Oakley.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REHARKS. No discharge records available.

Chemical analyses, in parts per million, October 196

Date 

of 

collection

June 8 ...........

Mean 

discharge 

(cfs)

Silica 

(SiO,)

14

Iron 

(Fe)

Calcium 

(Ca)

14

Magnesium 

(Mg)

5.1

Sodium 

(Na)

25 

38 

63 

70

109 

91 

29 

12 

16

Potassium 

(K)

1.1

Bicarbonate 

(HCO,)

95 

99 

108 

94

128 

107 

81 

61 

81

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

14

Chloride 

(Cl)

24 

48 

85 

88

135 

124 

34 

13 

16

Fluoride 

(F)

Ni

tra

(NO

0
SAN JOAQUIN RIVER BASIN Continued 

11-3134.5. OLD BIVER AT MANDEVILLE ISLAND, CALI

LOCATION. Lat 38°04'00", long 121°34'30", on northwest side of Handeville Island, San Joaquin County

Joaquin River, and approximately 5.5 miles southwest of Terminous. 

RECORDS AVAILABLE. Chemical analyses: December 1954 to September 1966. 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 13, 1965....

Jan. 13, 1966.... 

Feb. 1...........

Apr. 11..........

June 1 ...........

Mean 

discharge

(cfs)

Silica 

(SiO,)

14

Iron 

(Fe)

Calcium 

(Ca)

12

Magnesium 

(Mg)

5.6

Sodium 

(Na)

20 

26 

41 

39

34 

36 

13 

10 

13

Potassium 

(K)

1.1

Bicarbonate 

(HCO,)

88 

81 

80 

70

81 

82 

64 

61 

73

Carbonate

(ccg

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

10

Chloride 

(Cl)

20 

32 

54 

52

42 

44 

10 

10 

13

Fluoride 

(F)

Nitrate 

(NO

0.
SAN JOAQUIN RIVER BASIN 

11-3195. MOKELUBNE RIVER NEAR MOK

LOCATION. Lat 38°18'46", long 120°43'09", temperature recorder at gagin

of Mokelumne Hill, Calaveras County, and 8 miles downstream from conf

DRAINAGE AREA. 544 square miles.

RECORDS AVAILABLE. Water temperatures: February 1961 to September 1966

EXTREMES, 1965-66. Water temperatures: Maximum, 70°F June 26. 

EXTREMES, 1961-66. Water temperatures: Maximum, 70°F June 26, 1966; min

Temperature (°F) of water, water year Oct

October

Minimum ....

November

December

January

February

Maximum ....

Minimum ....

March

April

Maximum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

58

39

38

60

53

58

 51

60

57

63

56

60

55

2

58

40

3R

57

5*

56

5?

62

56

60

55

60

51

3

58

40

39

56

54

58

57

60

54

63

55

59

56

4

59

41

39

57

54

57

57

60

55

63

55

59

56

5

59

41

39

58

54

58

51

60

55

63

57

60

56

6

59

4?

41

54

60

54

55

54

59

54

63

56

59

56

7

60

4?

40

54

59

54

56

53

58

54

60

56

60

56

8

60

41

38

54

60

55

58

5*

58

55

60

57

60

56

9

60

40

38

51

60

58

60

55

58

55

62

56

58

56

10

60

4?

39

51

59

57

61

57

57

54

63

57

59

56

1 1

60

40

37

52

60

56

60

53

58

54

58

56

59

56

12

60

40

38

52

60

55

60

55

59

55

61

54

59

55

13

60

40

37

53

60

55

62

56

59

56

60

55

59

54

14

60

39

36

52

61

56

64

56

59

56

60

55

57

54

15

60

39

36

54

61

56

65

57

60

54

60

55

57

54

Day

16

59

39

36

53

63

56

63

57

59

54

62

56

58

54

17

5

1

3

5

6

5

6

5

5

5

6

5

5

5
SAN JOAQUIN RIVER BASIN Continued 

11-3235. MOKELUMNE RIVER BELOW CAMANCHE DAM, C

LOCATION. Lat 38°13'15", long 121°02'20", temperature recorder at gaging station on left bank 0.7 mi

Clements, San Joaquin County. 

DRAINAGE AREA. 627 square miles.

RECORDS AVAILABLE. Water temperatures: October 1961 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Minimum, 46°F Mar. 10, 11. 

EXTREMES, 1961-63, 1964-66. Water temperatures: Maximum (1961-63, 1964-65), 64°F Oct. 14-16, 1961; 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

May 4. ...........

Mean 

discharge 

(cfs)

2080 

475 

1070 

542

Silica 

(S102)

9.2

Iron 

(Fe)

Calcium 

(Ca)

5.4

Magnesium 

(Mg)

1.1

Sodium 

(Na)

2.3 

3.7 

2.5 

2.6

Potassium 

(K)

0.8

Blcarbonate 

(HCO,)

20 

22 

19 

21

Carbonate 

(CO,)

0 

0 

0 

0

Sulfate 

(S04)

3.0

Chloride 

(Cl)

0.8 

1.5 

1.6 

1.9

Fluoride

(F)

Ni

trat

(NO

0

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Oct. 29, 1965.....

Jan. 6, 1966......

Apr. 8.. ..........

Time 

(24 hour)

1445 

1215 

1400 

1430

1315 

0945 

1045 

1045 

0945

Water 

temperature

(°F)

62 

62 

55 

48

48 

50 

56 

57 

62

Sampling 

point

Discharge 

(cfs)

2070 

2090 

812 

475

698 

213 

536 

515 

340

Sediment 

concentration 

(ppm)

4 

4 

5 

2

2 

3 

3 

3 

3

Sediment 

discharge 

(tons per day)

22 

23 

11 

2.6

3.8 

1.7 

4.3 

4.2 

2.8

Perc

0.002 0.004 0.00
SAN JOAQUIN RIVER BASIN Continued

11-3235. MOKELUMNE RIVER BELOW CAMANCHE DAM, CALIF

Temperature (°F) of water, water year October 1965 to 

October 

Maximum .... 

Minimum .... 

November

Minimum .... 

December 

Maximum ....

January 

Maximum ....

February 

Maximum ....

Minimum .... 

March 

Maximum ....

April

Minimum .... 

May

July

August

September 

Maximum .... 

Minimum ....

1

55 

55

59 

59

56 

56

49

47

49

61

61

2

56 

56

59 

59

56

56

49

47

61 

61

3

56 

56

59 

59

56 

56

49

47

61 

61

4

56 

56

59 

59

56 

55

49

47

61 

61

5

56 

56

59 

59

56 

55

49

47

61 

61

6

56

56

59 

59

55 

55

49

47

61 

61

7

57 

56

59 

59

55 

5*

49

47

61 

61

8

57 

57

59 

59

5* 

5*

48

47

61 

61

9

57 

57

59 

59

54 

54

*9

47

61 

61

10

57 

57

59 

59

54 

54

48

46

61 

61

1 1

57 

57

59 

59

54 

54

49

47

61 

61

12

57 

57

59 

59

54 

54

48

48

49

61 

61

13

58 

57

59 

59

54 

54

48

48

49

61

61

14

58

58

59 

59

54 

53

48

48

49

61

61

15

58 

58

59 

59

53 

53

48

48

49

61 

61

Day

16

58 

58

59 

59

53 

53

48

48

49

61 

61

17

59 

58

59 

59

53 

53

48

48

49

61 

61

18

59 

58

59 

59

53 

52

48

48

49

61 

61

19

59 

58

59 

59

52 

52

48

48

49

61 

61

20

58 

58

59 

59

52 

52

47

48

61 

61
SAN JOAQUIN RIVER BASIN Continued 

11-3255. MOKELUMNE RIVER AT WOODBRIDGE, CALIF.

LOCATION (revised). Lat 38°09'30", long 121°18'10", temperature recorder at gaging station on left ba

bridge, and 0.4 mile downstream from dam and canal intake of Woodbridge Irrigation District. 

DRAINAGE AREA. 661 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1963.

Water temperatures: March 1951 to September 1958, November 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 74°F Aug. 8-10; minimum, 46°F on several days during 

EXTREMES, 1951-58, 1960-66. Water temperatures: Maximum (1951-54, 1956-58, 1960-66), 83°F July 9, 19

Jan. 29, 30, 1954. 

REMARKS. Samples for chemical analyses collected at dam, 0.4 mile upstream from gaging station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Jan. 6, 1966.....

May 3......... ...

Mean 

discharge

(cfs)

1750 

442 

957 

18

Silica 

(S10a)

9.3

Iron

(Fe)

Calcium 

(Ca)

5.2

Magnesium 

(Mg)

1.3

Sodium 

(Na)

2.1 

2.9 

2.5 

3.2

Potassium 

(K)

1.1

Blcarbonate 

(HCO,)

19 

22 

20 

22

Carbonate 

(CO,)

0 

0 

0 

0

SuJLfate 

(SO,)

4.0

Chloride

(ci)

1.0 

1.3 

1.6 

1.5

Fluorlde

(F)

Nitrate 

(NO,

0.6
SAN JOAQUIN RIVER BASIN Continued

11-3255. MOKELUMNE RIVER AT WOODBRIDGE, CALIF. 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum

January 

Maximum ....

Minimum .... 

February 

Maximum ....

Minimum .... 

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May 

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

62

62

62

61

56

55

48

47

47

49

49

59

57

63 

60

62

60

70

68

71

68

70

68

2

62

62

62

62

55

55

47

46

47

49

49

58

57

65 

61

62

60

69

67

73

70

71

69

3

62

62

62

62

55

55

46

46

49

49

58

57

64 

61

62

60

69

67

73

70

72

69

4

62

62

62

62

55

55

46

46

49

49

58

57

63

61

63

60

69

67

73

70

72

69

5 6

62 62

62

62

62

55

55

47

46

50

49

58

57

62 

58

64

61

70

67

73

70

72

70

62

62

62

55

55

48

47

50

50

58

57

62

58

63

61

70

67

73

70

72

69

7

62

62

62

62

55

55

48

48

50

50

58

56

61 

58

63

61

69

67

73

71

71

69

8

62

62

62

62

9TlO

62 62

62 62

62

62

62

62

j

55 54 5*

54 54

48

50

50

58

57

60 

59

64

61

70

68

74

71

70

68

50

50

58

58

61 

59

67

62

70

68

74

71

69

68

54

50

50

58

57

60 

59

69

65

70

68

74

71

69

67

11 1213

62 62 62

62 62 62

i

62162 62

62 62

54 54

54 54

50 52

50 50

57| 58

57 57

60 

58

69

65

70

68

73

71

69

68

62

58

69

66

70

68

73

70

68

66

62

54

53

54

52

59

58

59

70

66

70

68

72

70

67

65

14 15 16

62 62 62

62 62 62

62 62 61

62

54

53

55

54

60

59

60

71

67

70

67

72

70

67

65

17

62

62

61

61 61 61

53 52 51

52 51

56

54

64

60

60

71

68

70

68

73

70

66

65

55

54

66

63

60

70

68

70

68

73

71

67

65

18 19 I 20

 

62

61

61

61

50

50 150

54

53

65

62

60

70

67

71

68

73

71

67

65

53

53

63

59

60

70

67

71

68

73

71

67

66

61

61

61

61

61

61

50

50

47

54

53

61

58

61

70

68

72

69

73

71

67

67

61

60

50

50

54

53

59

57

62

70

68

72

69

72

70

67

67
SAN JOAQUIN RIVER BASIN Continued 

11-3350. COSUMNES RIVER AT MICHIGAN BAR, CALIF

LOCATION (revised). Lat 38°30'00", long 121°02'45", at gaging station on downstream side of midstrea

5.5 miles louthwest of Latrobe, and 12 miles downstream from confluence of North and Middle Forks. 

DRAINAGE AREA. 536 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1963.

Water temperatures; October 1962 to September 1966.

Sediment records: October 1962 to September 1966. 

EXTREMES, '.965-66. Water temperatures: Maximum, 83°F Aug. 8; minimum, 35°F Dec. 19, 20, 23, 24.

Sediment concentrations: Maximum daily, 109 ppm Dec. 29; minimum daily, 1 ppm on many days.

Sediment loads: Maximum daily, 576 tons Dec. 29; minimum daily, less than 0.05 ton Sept. 10-30. 

EXTREMES, 1962-66. Water temperatures: Maximum (1965-66), 83°F Aug. 8, 1966; minimum (1963-66), 35°

Sediment concentrations: Maximum daily, 3,070 ppm Feb. 1, 1963; minimum daily, 1 ppm on many days 

Sediment loads: Maximum daily, 245,000 tons Feb. 1, 1963; minimum daily, less than 0.05 ton on man

REMARKS. Clock stopped Nov. 26 to Dec. 6 and June 8 to July 6; temperature ranges, 46°F to 51°F and 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Mar. 1........ ...

May 12...........

Mean 

discharge

(cfs)

32 

896 

306 

246

Silica 

(Si02)

15

Iron

(Fe)

Calcium 

(Ca)

6.6

Magnesium 

(Mg)

1.5

Sodium

(Na)

4.1 

5.0 

4.7 

2.6

Potassium 

(K)

0.9

Bicarbonate 

(HCO,)

45 

60 

58 

30

Carbonate 

(CO,)

0 

0 

0 

0

Sulfate 

(SO,)

3.0

Chloride 

(Cl)

1.3 

3.6 

2.7 

1.1

Fluoride 

(F)

Nitrate 

(NO,

0.
SAN JOAQUIN RIVER BASIN Continued

11-3350. COSUMNES RIVER AT MICHIGAN BAR, CALIF. C

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum .... 

Minimum ....

November

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum .... 

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June 

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September 

Maximum ....

Minimum ....

1

68

63

63

58

43

41

47 

45

49

48

59

57

63

60

68

65

76

74

74

68

2

69 

63

60

57

41

39

47 

45

48

47

59

56

64

61

67

63

77

75

74

70

3

67 

62

60

56

41

40

46

47

45

59

56

65

63

68

63

77

75

76 

70

4

70 

63

60

57

44

41

48

46

44

60

58

65

63

64

 ~

 -

77

75

76

71

5

63

60 

58

46

44

49

48

45

61

58

65

63

69

66

77

74

77 

72

6

64

60 

56

47

45

50

53

49

61

60

65

63

68

66

77

74

78

72

7

70

64

61 

56

47

46

47

45

49

55

53

61

59

65

63

69

65

74

70

77

74

76

70

8

71 

66

62

58

46

46

47

45

46

55

54

59

57

66

64

73

70

83

7*

75

68

9

72 

67

60 

57

46

46

47

46

45

55

53

59

57

65

64

77

70

81

77

76 

68

10

70 

65

59

54

45

44

46

45

45

5*

53

57

56

64

63

74

71

82

77

77 

66

1 1

70 

64

58

55

46

44

46

45

45

54

53

57

55

63

61

74

71

82

77

76 

67

12

69 

64

58

57

46

45

45

43

45

53

52

57

55

65

62

73

70

91

77

76 

66

13

68 

64

57

56

46

45

44

42

45

55

53

57

55

66

64

72

70

80

77

74 

66

14

67

64

57

56

45

43

43

41

44

55

52

58

55

66

64

72

70

80

77

63

15

68 

63

57

56

43

40

42

41

44

54

52

60

57

67

64

72

70

80

77

62

Day

16

65 

60

57 

55

40

38

43

41

44

53

52

61

59

67

64

72

70

80

78

64

17

60

58

55

38

36

42

40

45

52

49

62

61

68

66

72

70

81

79

64

18

60

58

56

37

36

42

39

46

51

48

62

60

70

67

74

71

82

79

68

19

60

56

54

37

35

41

39

48

53

51

60

56

71

69

75

73

82

78

68

20

60

55

53

36

35

40

38

49

53

51

57

54

72

70

75

73

80

76

67
QUALITY OF SURFACE WATERS, 1966

SAN JOAQUIN RIVER BASIN Continued 

11-3350. COSUMNES RIVER AT MICHIGAN BAR, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

It..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

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..

Total

OCTOBER

Mean 

discharge 

(cfs)

28

26

26

23

23

22

22

21

20

20

20

21

22

24

27

39

50

43

39

35

35

34

32

29

30

34

32

32

32

32

32

90!

Suspended sediment

Mean

tration 

(ppm)

_

1

1

 -

_

2

_

 -

1

_

Tons

per 

day

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

,1

1 .1

 .1

1 .1

 3.4

JANUARY

890

478

345

318

896

788

550

42!

36!

318

282

298

240

226

218

208

201

194

187

180

168

168

174

168

161

155

15!

149

210

1520

896

11491

19

6

3

3

10

1!

7

5

4

3

3

3

3

2

2

_

3

2

2

2

1

2

2

1

1

1

1

1

!

49

20

S !2

S 8.!

2.8

S 2.9

S 26

S 33

S 11

6.0

4.0

2.!

2.3

2.1

1.9

1.1

1.1

1.7

1.6

1.0

.9

.9

.5

.8

.9

.!

.!

.!

.!

.4

S 8.0

S 216

S 52

443.9

NOVEMBER

Mean 

discharge

(cfs)

32

32

31

32

32

32

32

33

33

33

34

35

40

68

184

132

14!

505

660

298

187

142

154

312

474

302

224

181

159

145

4703

620

508

395

380

488

1820

1090

706

538

442

37!

330

306

282

270

254

243

240

240

240

236

232

246

306

410

460

365

322

12324

Suspended sediment

Mean

concentration

(ppm)

_

1

1

2

_

51

65

14

4

2

2

4

12

7

2

2

1

-

Tons

per 

day

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

2.9

1.1

1.6

S 121

S 120

11

2.

,

S 4.

15

!.

1.

.

.;

.

290.5

FEBRUARY

11 |S 19

6

4

3

8.1

4.3

3.0

4 is 7.3

49

2!

6

4

3

4

5

4

3

1

1

1

1

1

1

1

1

1

1

6

7

6

4

S 262

S 82

S 13

5.9

3.!

4.1

4.6

3.4

2.3

.8

 8

.7

.7

.7

.7

.7

.7

.7

.9

S 6.7

8.7

5.8

3.5

454.6

DECEMBER

Mean 

discharge

(cfs)

134

124

119

116

116

116

114

111

111

109

109

154

165

137

121

109

100

87

89

89

9!

107

98

89

731

316

200

492

1790

1540

1970

9758

Suspended sediment

Mean

concentration

(ppm)

1

__

1

__

2

1

1

_ 

1

1

1

 _

1

__

1

__

1

Tons

per 

day

0.4

.4

.4

.3

.6

.3

.3

.3

.3

.3

.3

.8

.!

.4

.4

.3

.3

.3

.3

 i .3

1 .3

 : .3

1 .3

3 S 1.!

55

17

12

16

109

49

4!

--

S 119

S 15

S 6.8

S 44

S 576

S 223

S 270

1263.7

MARCH

306

298

278

258

250

250

2!8

278

302

425

620

!78

606

663

6!5

634

!71

!20

!08

520

472

448

448

4!4

484

508

!!7

606

714

815

860

151«4

5

4

4

4

6

!

4

!

8

8

14

11

6

9

6

!

4

3

2

3

1

2

2

5

4

4

!

6

11

14

14

4.3

3.3

3.1

2.8

4.0

3.5

2.8

3.9

6.6

9.4

24

17

9.7

16

10

8.9

6.3

4.2

2.!

4.2

1.4

2.2

2.2

6.4

!.3

5.6

7.8

9.7

21

31

33

272.1

S Computed by subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN Continued

11-3350. COSUMNES RIVER AT MICHIGAN BAR, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

1000

923

8*9

851

833

797

754

722

683

788

905

923

833

746

690

662

641

634

620

544

496

460

430

410

405

410

400

385

345

330

19489

Suspended sediment

Mean

concentration

(ppm)

14

13

9

8

7

7

7

6

5

8

12

10

8

5

4

5

5

5

4

3

3

4

3

3

3

3

3

2

3

2

Tons

per 

day

38

32

21

19

16

15

14

12

9.6

17

29

25

18

10

7.6

9.3

9.0

8.9

6.8

4.4

4.0

5.1

3.4

3.3

3.2

3.3

3.2

1.9

2.8

1.7

353.5

JULY

64

66

62

46

43

42

42

41

42

47

47

50

59

59

59

56

54

50

49

49

51

46

50

51

56

56

56

54

53

54

62

1*16

5

3

4

3

2

2

2

1

1

2

1

1

2

1

 

0.9

.9

.7

.4

.5

.3

.3

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.1

.2

.3

.1

.2

.2

.2

.2

.3

.3

.2

.2

.2

9.2

MAY

Mean 

discharge

(cfs)

314

302

294

286

282

278

266

258

246

258

286

246

218

201

187

174

161

149

136

133

126

123

115

105

97

88

82

79

77

75

75

5717

Suspended sediment

Mean

concentration

(ppm)

4

2

3

2

2

1

1

1

1

1

2

2

2

1

1

2

1

1

2

1

1

2

3

2

2

2

2

1

2

2

2

Tons

per 

day

3.5

1.5

2.4

1.4

1.4

.8

.8

.8

.7

.8

1.4

1.2

1.1

.6

.6

.9

.5

.4

.7

.4

.4

.6

.9

.5

.5

.4

.4

.2

.4

.4

.4

27.0

AUGUST

70

68

64

54

44

43

40

36

36

36

32

34

42

50

51

53

51

44

43

42

42

41

42

42

42

42

44

47

46

46

46

1413

_

__

1

2

1

 _

2

_

2

2

_

2

 _

1

_

2

2

2

__

1

1

1

0.4

.3

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.3

.3

.3

.3

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

6.1

JUNE

Mean 

discharge

(cfs)

75

70

68

62

61

59

59

57

59

54

43

46

42

41

39

47

53

71

66

61

50

49

49

49

53

47

31

27

28

49

1565

Suspended sediment

Mean

tration

(ppm)

3

__

3

__

2

__

1

__

2

_

__

2

__

2

__

3

_-

_-

2

__

1

__

3

__

5

Tons

per 

day

0.6

.6

.5

.5

.5

.3

.3

.2

.2

.3

.2

.2

.2

.2

.2

.2

.4

.6

.5

.3

.2

.1

.2

.4

.6

.5

.4

 .3

3 .2

.5

10.4

SEPTEMBER

46

46

44

44

44

43

41

38

23

11

8.8

7.0

6.2

5.5

5.5

5.8

5.2

6.0

6.5

6.5

6.8

6.2

7.3

7.3

7.0

7.0

6.8

6.2

6.0

6.2

509.8

_ _

1

1

_

1

__

1

"

__

1

_-

_-

1

__

__

1

1

1

2

__

__

2

0.1

.1

.1

.1

.1

.1

.1

.1

.1

T

T

T

0.9

Total discharge for year (cfs-days) ..................................................... 84654.8

Total load for year (tons) .............................................................. 3135.3
SAN JOAQUIN RIVER BASIN Continued 

11-3350. COSUMNES RIVER AT MICHIGAN BAR, CALIF. Contin

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decan

____________________P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Water 

Date of collection

Nov. 19, 1965..... 

Dec. 29, 1965.....

Time 

(24 hour)

0710 

0715

Water 

temperature 

(°F)

52 

44

Sampling 

point

Discharge

(cJs)

748 

2560

Sediment 

concentration 

(ppm)

76 

147

Sediment 

discharge 

(tons per day)

153 

1020

Percen

0.002 0.004 0.008 

11-3366. DELTA CROSS-CHANNEL NEAR WALNUT GROVE, 

LOCATION. Lat 38°14'43", long 121°30'18", approximately 0.2 mile downstream from control gates, 0.5 

7,5 miles south of Court land.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 6, 1965.....

Nov. 29..........

Feb. 9...........

«ar. 8.......... .

Apr. 6...........

Hay 3.. ..........

June 8 ...........

Mean 

discharge 

(cfs)

Silica 

(S10,)

16

Iron

(Fe)

Calcium 

(Ca)

12

Magnesium 

(Mg)

4.4

Sodium

(Na)

8.6 

7.5 

6.9 

8.8

7.8 

14 

7.2 

7.2 

15

Potassium 

(K)

1.1

Blcarbonate 

(HCO,)

72 

68 

63 

71

68 

90 

58 

60 

95

Carbonate

(cog

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04)

8.0

Chloride 

(Cl)

4.6 

2.7 

4.8 

5.5

5.0 

9.4 

3.3 

4.1 

11

Fluoride 

(F)

Nitrate 

(NO

0.8
SAN JOAQUIN RIVER BASIN Continued 

11-3372. SAN JOAQUIN RIVER AT ANTIOCH, CALIF.

LOCATION. Lat 38°01'04", long 121°48'06", at tidal gaging station at Antioch, Contra Costa County, an

RECORDS AVAILABLE. Chemical analyses: October 1952 to June 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 6, 1965.....

June 8 ...........

Mean 

discharge 

(cfs)

Silica 

(S10,)

12

Iron 

(Fe)

Calcium 

(Ca)

19

Magnesium 

(Mg)

5.0

Sodium 

(Na)

22 

24 

18 

26

33 

34 

20 

38 

204

Potassium 

(K)

1.8

Blcarbonate

(HCOJ

91 

76 

68 

68

80 

82 

73 

60 

78

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

SuUate 

(SO,)

21

Chloride 

(Cl)

22 

32 

20 

36

40 

41 

23 

56 

350

Fluorlde 

(F)

Nitrate 

(NO,)

0.9
SACRAMENTO RIVER BASIN 

11-3414. SACRAMENTO RIVER NEAR MOUNT SHASTA, 

LOCATION. Lat 41°15'56", long 122°18'32", temperature recorder at gaging station on 

0.3 mile upstream from Southern Pacific Railroad bridge, and 3.3 miles south of M

DRAINAGE AREA. 134 square miles.

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Minimum, 36°F Dec. 24.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April 

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

59

54

49

47

42

41

38

37

40

39

42

40

48 

46

50

47

56

54

60

57

58

55

2

58

52

49

48

41

41

37

37

40

39

40

39

47 

46

50

47

55

53

63

54

61

57

58

55

3

57

53

50

49

41

41

37

37

39

39

40

38

48 

46

49

47

55

52

64

54

61

58

58

55

 

4

56

53

51

49

42

41

37

37

39

39

40

38

49

47

49

48

57

52

66

54

61

57

58

54

5

57

56

51

48

43

42

38

37

41

39

40

39

49 

47

50

48

57

54

66

54

61

57

58

55

6

57

53

50

48

43

42

38

38

40

39

40

40

49 

47

50

47

56

56

66

55

61

57

57

54

7

58

53

49

49

43

42

38

38

39

39

42

40

48 

46

50

47

57

56

66

56

61

57

57

54

8

57

53

49

49

42

42

38

38

39

39

42

42

47

46

51

48

60

56

63

55

61

57

57

54

9

57

53

49

48

42

42

38

38

39

39

42

41

47 

46

52

51

62

58

64

56

60

57

56

53

10

56

53

49

47

42

42

38

38

39

39

42

41

46 

46

53

50

62

58

65

55

61

57

56

53

1 1

56

52

48

47

42

42

39

38

39

38

41

40

46 

46

52

49

59

55

66

54

60

57

55

53

12

55

52

48

48

42

42

39

39

39

39

42

41

47 

46

53

50

59

55

60

56

55

52

13

55

52

48

47

42

41

39

39

39

38

43

42

48

45

53

51

62

56

60

56

55

53

14

54

51

47

47

41

40

40

39

39

38

43

42

49 

46

53

49

63

58

60

57

55

53

15

53

51

47

46

40

39

40

40

39

38

43

42

50 

47

52

50

63

59

60

57

56

53

Day

16

51

49

46

46

39

38

40

39

39

38

42

41

50 

47

54

51

63

59

60

57

56

53

17

52

49

46

45

38

38

39

38

40

38

42

40

46

55

52

63

59

60

58

55

52

18

52

49

45

45

38

38

39

38

41

39

42

41

45

56

52

63

60

61

58

54

53

19

52

49

45

45

38

38

39

38

40

39

43

42

44

57

53

62

59

60

57

56

53

20

52

48

45

45

38

38

38

38

42

40

43

41

44

58

54

62

58

60

56

55

54
SACRAMENTO RIVER BASIN Continued 

11-3420. SACRAMENTO RIVER AT DELTA, CALIF.

LOCATION. Lat 40 0 56'20", long 122°24'55", at gaging station 0.2 mile downstream from Dog Creek, 0.6 

south of Lamoine.

DRAINAGE AREA. 425 squsquare miles. 

RECORDS AVAILABLE. Chemical analyses: December 1953 to September 1966.

Water temperatures: June to September 1951, October 1953 to September 1957, October 1962 to Septem

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F Aug. 10; minimum, 33°F Dec. 24, 25. 

EXTREMES, 1951, 1953-57, 1962-66. Water temperatures: Maximum (1951, 1953-57, 1963-66), 80°F Aug. 1

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Feb. 7. ..........

Sept. 13. ........

Mean 

discharge

(cfs)

200 

197 

1130 

1020 

2540 

3130

3340 

1910 

570 

278 

194 

197

Silica 

(S10a)

15 

30

Iron 

(Fe)

Calcium

(Ca)

4.0 

8.4

Magnesium 

(Mg)

5.7

7.7

Sodium

(Na)

11 

11 

4.2 

5.0 

3.3 

3.4

2.2 

2.5 

5.1 

8.7 

10 

11

Potassium 

(K)

0.3 

1.3

Blcarbonate 

(HCO,)

80 

82 

55 

52 

42 

42

42 

42 

58 

73 

78 

78

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0<)

4.0 

3.0

Chloride 

(Cl)

7.4 

7.3 

1.8 

2.9 

1.5 

.7

.8 

.5 

2.5 

5.2 

6.2 

7.4

Fluoride

(P)

Nitrate 

(NO

0.

.

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued

11-3420. SACRAMENTO RIVER AT DELTA, CALIF. C

Temperature (°F) of water, water year October 1965 to 

October 

Maximum .... 

Minimum .... 

November

December 

Maximum ....

January

Minimum .... 

February

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May

Minimum ....

Maximum .... 

Minimum .... 

July

Minimum .... 

August

Minimum .... 

September 

Maximum .... 

Minimum ....

1

62 

51

37

41

47 

43

55 

45

45

58 

51

61

65

70 

58

2

60 

52

36

*2

4* 

40

54 

45

45

56 

52

58

72 

61

60 

50

36

42

46

38

54 

44

46

58 

48

56

68

75 

63

4

55 

49

37

41

42. 

39

54

45

49

61 

52

59

68

75 

64

5

60 

52

39

46

42 

40

54 

44

49

60 

55

60

68

75 

65

6

65 

54

44

46

44 

42

54 

45

46

57 

56

61

67

72 

64

7

66

56

44

42

46

44

54 

46

46

59 

54

62

68

69 

63

8

64 

55

46

43

42

47 

46

52 

46

47

65

55

59

66

70 

62

9

63

54

45

42

42

47 

46

50 

46

51

69 

61

58

67

70 

59

10

61

54

44

42

43

51 

45

46 

44

49

68 

61

58

68

70 

58

11

62 

53

44

41

40

50 

44

45 

42

47

66 

58

58

69

69 

59

12

61

53

43

41

42

51 

45

47 

41

47

67 

58

60

67

66 

56

13

63

54

42

41

39

51 

47

52 

41

49

71 

61

59

66

63 

55

14

59 

52

40

40

39

49 

47

54

43

47

74 

64

62

66

63 

54

15

54 

47

38

41

39

47 

43

57 

46

46

73 

66

60

66

63 

54

Day

16

53 

45

37

40

40

47 

41

57 

47

47

72 

64

60

67

66 

57

17

55 

46

38

41

 40

47 

39

53 

45

49

72 

63

60

66

67 

58

18

52 

48

36

41

40

48 

44

50 

42

51

73 

65

61

67

68 

60

19

56 

48

38

40

41

49 

44

49 

39

52

71 

64

62

67

66 

60

20

59

50

37

38

42

49 

41

49

40

54

67 

62

64

66

68 

61
SACRAMENTO RIVER BASIN Continued 

11-3455. SOUTH FORK PIT RIVER NEAR LIKELY, CAL

LOCATION. Lat 41°13'51", long 120°26'10", at gaging station, 100 feet downstream from highway bridge

miles east of Likely, Modoc County. 

DRAINAGE AREA. 247 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Dec. 14..........

Jan. 19. 1966....

Sept . 7 ..........

Mean 

discharge 

(cfs)

34 

29 

30 

20 

32 

93

78 

120 

124 

30 

24 

10

Silica 

(S10a)

29 

35

Iron 

(Fe)

Calcium 

(Ca)

12 

14

Magnesium 

(Mg)

4.1 

6.0

Sodium 

(Na)

5.6 

5.0 

5.6 

5.0 

5.3 

8.6

4.2 

7.0 

8.7 

10 

16 

11

Potassium 

(K)

3.1

4.5

Bicarbonate 

(HCO,)

65 

60 

68 

62 

62 

73

50 

72 

86 

85 

110 

96

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

2 

2 

0

Sulfate 

(SO,)

3.0 

6.0

Chloride 

(Cl)

0.5 

.4 

.6 

.4 

.6 

1.2

.3 

.8 

1.2 

1.3 

4.6 

1.5

Fluoride 

(F)

Nitrate 

(NO

0.

1 

1.
SACRAMENTO RIVER BASIN Continued

11-3485. PIT RIVER NEAR CANBY, CALIF.

LOCATION. Lat 41°24'22", long 120°55'36", at gaging station at lower end of Warm Spring Valley, 4 mile

DRAINAGE AREA. 1,431 square miles, excluding Goose Lake basin. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Water temperatures: March 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F Aug. 3, 5, 6, 10; minimum, freezing point on sev

EXTREMES, March 1965 to September 1966. Water temperatures: Maximum, 79°F Aug. 3, 5, 6, 10, 1966; mini

Chemical analyses, in parts per million, water year October 1965 t

Date 

of 

collection

Oct. 5, 1965.....

Jan. 18, 1966. ... 

Feb. 8...........

Sept. 8..........

Mean 

discharge 

(da)

80 

81 

85 

106 

120 

162

167 

12 

91 

58 

47 

14

Silica 

(SiOa)

19 

30

Iron

(Fe)

Calcium 

(Ca)

21 

24

Magnesium 

(Me)

8.4 

11

Sodium 

(Na)

26 

26 

27 

30 

28 

22

19 

21 

31 

35 

29 

30

Potassium 

00

4.3

5.3

Bicarbonate 

(HCO,)

147 

150 

140 

160 

141 

118

126 

142 

180 

191 

172 

177

Carbonate 

(CO,)

5 

4 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO.)

14 

16

Chloride 

(Cl)

5.5 

6.2 

9.0 

10 

8.7 

6.4

3.1 

6.7 

4.5 

6.0 

6.6 

8.2

Fluoride 

(F)

Nitrate 

(NO,)

1.0

2.5 

1.8
PACIFIC SLOPE BASINS IN CALIFORNIA

tinued

, S <U 1

« r'

4^ M 

B J

z fc"

M EQ K> Z

m o 

« «

W 4

a *

0 W

| S

6 S 

S .

5

i

rt

rt

<C

o>

T-t

h

a

Septemt

o +>

in 

<c

O)

h

Octobe

A

h 

ID

A 

*

3 +J 

A 

h

&

EH

-«j

Q

.

LI »

CO

o

CO

0 

CN

CO 

CM

IX

O 

CM

IO

T

CO

CM

CM 

CM

O 

CM

O"

CO

10

CO

2

O00

IX

 o

T

CO

CM

 ~

3

i£ ! ! S^ SJ; i ! S2 ! ! S£ i ! £ £ SS ! i

r-t r-t *o«r\ * * mm ii ( * m* c*j« ! * ir- o^-* i'r1-

r\i»H *o«r\ ^-^ mm I | jm K>* (O' j^ 1 i >o« mo

S^ K£ SS RS SS IS £S IS U !! SS SS

£S SS SS SS SS £S *?; !* IS i I *S SS

K » 5 . ** * s *;. .. £S is fs ii ss ss

^0 -0, ** ** OJ-H *l- 00<f CXJ* OJO in *0 »!-

SS S3 SS SS SS S* SS ?S °S PS PS SS

55 j* ** 5^ jjjp; 55 j;- 12 |* *~ ** 3 «

! ! 55 SS SS SS S5 SS SK ?5 PS ^J S^

. , ** mm mm mr, * 4 ,0^ « ,-* K* ^* *

II ** mrr, nrr, r>n *» ^^ ,0 «N 1- * ^ * 1- o ^^

! ! 53 SS SS SS 3? KS 25 ?S PS PS SS

11 *.* mm S^ ** ^^ S^ ** r-* ^* 2«

, , *«. m(B mm Sn »» «« *^ «« ^<, ^* « 

Illl S SS SS SS SS SS SS J2S PS 55

SS ! ! S i*S S3 2S SS $K S* PS ?S S3

r- » i i -o «m *m or-- ON « > or- M * »n «o

<o m oo «m mm mm o * » * <o«o m * ooo O^I-H i-« o

^S KJ S SR RS SS SS £S SS SS 15 PS

*« ** mm mm mm mw *^ ^^ ^ ^« «.

s s u | s __ a s sa as as ss as |s ss ss ^ s s 

u a a^ e Iji e a ^a a > ! 1 11 aa 11 is sa 11^11

2| s |ssSss|ssils|lsils|ls|lsiss|ls|ss
SACRAMENTO RIVER BASIN Continued

11-3650. PIT RIVER NEAR MONTGOMERY CREEK, CALI

LOCATION. Lat 41°50'36", long 122"00'58", at gaging station on right bank 0.5 mile upstream from Pot

powerhouse and 5.0 miles west of town of Montgomery Creek, Shasta County. 

DRAINAGE AREA (revised). 4,951 square miles, approximately, excluding Goose Lake basin. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Water temperatures: June to September 1951, October 1953 to September 1957, October 1958 to August 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Jan. 18, 1966....

Mean 

discharge 

(cfs)

2740 

2970 

504 

4640 

2570

7830 

4590 

4790 

3100 

3740 

315

Silica 

(S10a)

25 

31

Iron 

(Fe)

Calcium 

(Ca)

9.8 

10

Magnesium 

(Mg)

4.3 

5.7

Sodium 

(Na)

11 

11 

11 

8.1 

8.4

6.5 

6.9 

7.4 

9.4 

9.3 

9.3

Potassium 

(K)

1.4 

2.1

Blcarbonate 

(HCO,)

88 

91 

91 

76 

76

66 

66 

69 

78

77 

79

Carbonate 

(CO,)

l

0 

0 

0 

0

0 

0 

0 

0 

0 

0

SuUate 

(S04 )

1.0 

1.0

Chloride 

(CD

3.0 

3.2 

3.1 

2.0 

2.6

.8 

1.2 

1.4 

2.1 

2.4 

2.4

Fluorlde

(P)

Nitrate 

(NO

0.

1.
SACRAMENTO RIVER BASIN Continued

11-3680. MCCLOUD RIVER ABOVE SHASTA LAKE, CALI

LOCATION. Lat 40°57'30", long 122°13'05", at gaging station just upstream from Shasta Lake, Shasta C

11.3 miles east of Lamolne. 

DRAINAGE AREA. 604 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Water temperatures: June to September 1951, October 1953 to September 1959.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 4, 1965.....

Mar. 7 ...........

Sept. 13. ........

Mean 

discharge

(cfs)

1020 

996 

1540 

714 

1920 

968

1160 

520 

388 

305 

281 

297

Silica 

(SiO,)

18 

28

Iron

(Fe)

Calcium 

(Ca)

16 

12

Magnesium 

(Mg)

2.4

3.6

Sodium

(Na)

4.7 

5.0 

4.2 

3.9 

5.6 

3.8

3.0 

3.5 

4.3 

4.7 

5.2 

5.0

Potassium 

(K)

0.3 

1.2

Bicarbonate 

(HCO,)

54 

54 

51 

51 

44 

56

52 

65 

62 

64 

65 

64

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

6.0 

3.0

Chloride 

(Cl)

0.8 

.9 

.9 

.7 

.8 

. 3

.3 

.4 

.6 

.9 

1.2 

.9

Fluoride

(F)

Ni

tra

(NO

0

1
SACRAMENTO RIVER BASIN Continued

11-3705. SACRAMENTO RIVER AT KESWICK, CALIF.

LOCATION. Lat 40 0 36*05", long 122°26'35", at gaging station 0.4 mile upstream fro

from Keswick, shasta County, and 10 miles downstream from Shasta Dam. 

DRAINAGE AREA (revised). 6,468 square miles, excluding Goose Lake basin. 

RECORDS AVAILABLE. Chemical analyses: December 1953 to September 1966.

Middle Creek, 0.8 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 4, 1965. ....

Feb. 7...........

Sept. 13.. .......

Mean 

discharge 

(eta)

8320 

7660 

6050 

10900 

8670 

4620

5300 

8880 

10200 

1391)0 

13200 

7790

Silica 

(810,)

18 

18

Iron 

(Fe)

Calcium 

(Ca)

9.8 

9.2

Magnesium 

(Mg)

4.7 

5.0

Sodium

(Na)

5.1 

5.5 

4.6 

7.3 

4.5 

5.8

6.0 

5.7 

5.5 

6.2 

5.2 

4.9

Potassium 

(K)

1.0 

.9

Bicarbonate 

(HCOJ

58 

61 

56 

68 

51 

55

61 

58 

60 

60 

60 

58

Carbonate 

(COJ

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

4.0 

4.0 

4.0 

5.0 

6.0 

8.0

7.0 

6.0 

3.O 

5.0

5.0

Chloride 

(Cl)

1.4 

1.4 

1.5 

2.0 

1.5 

1.0

1.8 

1.4 

1.5 

1.6 

1.5 

1.4

Fluoride 

(F)

Nitrat

(NO

0.

.

.
SACRAMENTO RIVER BASIN Continued 

11-3720. CLEAR CREEK NEAR IGO, CALIF.

LOCATION (revised). Lat 40°30'50", long 122°31'20", at gaging station at highway bridge on Redding-I

southwest of Redding, and 10.4 miles upstream from mouth. 

DRAINAGE AREA. 228 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Water temperatures: March 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 67°F June 14; minimum, 40°F Feb. 13-15, 17. 

EXTREMES, March 1965 to September 1966. Water temperatures: Maximum, 67°F June 14, 1966; minimum, 4

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 7, 1965.....

Feb. 4......... ..

Apr. 13......... .

July 7 ...........

Mean 

discharge 

(cfs)

57 

94 

112 

1080 

563

143 

90 

52 

46 

39 

37

Silica 

(Si02)

15 

12

Iron 

(Fe)

Calcium 

(Ca)

8.0 

6.7

Magnesium 

(Mg)

3.9 

6.3

Sodium

(Na)

3.0 

2.9 

3.4 

3.6 

3.8

4.6 

4.2 

4.2 

3.8 

3.6 

3.2

Potassium 

(K)

0.5 

.5

Bicarbonate 

(HCOJ

52 

51

44 

16 

29

40 

40 

43 

46 

48 

50

Carbonate 

(CO,)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

6.0 

4.0

Chloride 

(Cl)

2.0 

2.1 

1.8 

.8 

1.9

.9 

1.6 

2.8 

3.8 

2.2 

1.8

Fluoride 

(F)

Nitrate 

(NO

0.9

.
SACRAMENTO RIVER BASIN Continued

11-3720. CLEAR CREEK NEAR IGO, CALIF. Con

Temperature (°F) of water, water year October 1965 t

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum .... 

Minimum ....

January 

Maximum ....

Minimum ....

February 

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

56

52

52

49

49

46

45

42

45 

44

47

44

58

51

59

54

58

55

63

59

64

61

62

60

2

57

52

53

49

49

44

44

47

44

46

43

56

50

59

55

56

53

62

57

65

62

61

60

3

56

52

53

50

49

46

44 

43

46 

45

46

41

57

51

58

55

58

52

62

60

65

62

4

55

51

54

51

49

47

46

44

49

46

44

41

58

51

62

58

60

56

63

60

64

62

62

61

5

57

54

53

50

49 

48

49 

46

50

48

46

43

58

52

58

57

58

55

63

60

65

61

61

61

6

58

53

53

50

49 

47

50

48

48

45

49

45

58

53

60

55

57

55

64

61

65

62

7

58

54

52

50

49

48

50

48

43

49

47

59

53

59

56

60

55

62

60

65

62

62

60

8

58

53

53

51

49

47 

50

47

43

48

47

57

53

59

56

62

57

60

56

65

62

63

60

9

58

54

52

50

48

46

46

43

50

48

54

52

60

57

65

61

61

57

65

63

60

59

10

58

54

51

49

48 

45

45

43

53

49

53

51

60

55

64

60

62

58

65

63

60

59

11

57

53

52

50

47

44

41

52

48

53

50

62

59

62

58

62

59

65

61

60

57

12

57

52

52

51

47

44

42

54

51

54

49

61

57

63

60

62

59

63

61

59

56

13

57

54

52

52

46

44

40

54

51

56

49

62

58

65

61

62

59

65

61

60

58

14

57

53

53

52

45

43

40

54

50

57

50

59

54

67

63

64

60

64

61

58

57

15

54

51

53

53

45

45

40

50

46

59

51

60

56

64

62

62

60

63

61

60

57

16

54

50

53

51

45

43

41

49

44

60

52

61

56

65

62

62

60

63

59

60

59

17

54

51

54

52

45

42

40

50

47

59

52

61

57

64

61

63

60

61

59

60

59

18

55

52

53

53

45

42

42

52

48

58

51

62

58

66

62

64

60

63

60

62

60

19

54

52

53

52

45

42

44

52

46

54

49

62

58

64

62

63

61

63

61

63

60

20

55

52

53

52

45

41

44

53

48

55

48

63

60

63

59

64

61

62

61

64

62
SACRAMENTO RIVER BASIN Continued 

11-3722. SOUTH COW CREEK NEAR MILLVILLE, CA

LOCATION. Lat 40°32'55", long 122°05'30", temperature recorder at gaging station o

Creek, and 4.4 miles east of Millville, shasta County. 

DRAINAGE AREA. 77.3 square miles.

RECORDS AVAILABLE, Water temperatures: December 1965 to September 1966.

EXTREMES, December 1965 to September 1966. Water temperatures: 88°F Aug. 6, 7; mi

REMARKS. Clock stopped Aug. 11 to Sept. 15; temperature range, 69°F to 85°F.

Temperature (°F) of water, water year October 1965 t

October

November

December

January 

Maximum .... 

Minimum .... 

February

Minimum .... 

March

April 

Maximum .... 

Minimum .... 

May

June 

Maximum .... 

Minimum .... 

July 

Maximum 

Minimum .... 

August

September

1

41 

38

42

58 

52

82

70

2

41

40

39

58 

52

80 

66

3

43 

40

42

56 

51

81 

67

4

45

43

44

56 

51

81 

67

5

46

45

44

57 

52

69 

61

83 

67

6

48 

46

43

58 

53

66 

63

82 

69

7

47 

45

38

59 

57

73 

63

81 

69

8

48 

46

38

57 

53

78 

64

79 

68

9

46 

42

38

56 

53

81 

68

79 

69

10

44 

43

40

54

51

81 

68

81 

68

11

44

41

36

51 

47

78 

66

81 

68

12

43

40

38

53 

49

79 

66

31 

68

13

42 

41

34

54 

48

81 

68

14

43 

39

35

"

81

70

15

44

40

37

::

80 

68

Day

16

42 

38

36

86 

72

80 

67

17

41 

36

37

60 

54

86

70

82 

67

18

41 

36

39

57 

51

84 

71

83 

68

19

40 

36

45

53 

47

84

70

84

70

20

39 

35

45

53 

47

79

70

83 

72
SACRAMENTO RIVER BASIN Continued 

11-3740. COW CREEK NEAR MILLVILLE, CALIF.

LOCATION. Lat 40°30I 20", long 122°13'55", at gaging station 4.2 miles southwest of Millville, Shasta 

DRAINAGE AREA. 425 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Water temperatures: October 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 90°F Aug. 3, 4, 7; minimum, 35°F Dec. 19, 20. 

REMARKS. Recorder not operating properly June 14 to July 4 and Aug. 25 to Sept. 13; temperature range

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 7, 1965.....

Jan. 17, 1966.... 

Feb. 4.... .......

Mean 

discharge 

(cfs)

46 

73 

150 

388 

3450

715 

1380 

375 

146 

20 

9.6

Silica 

(SiO,)

22 

35

Iron 

(Fe)

Calcium 

(Ca)

10 

18

Magnesium 

(Mg)

3.2

8.7

Sodium

(Na)

8.7 

8.7 

9.0 

6.4 

3.7

6.6 

4.5 

4.7 

6.4 

8.9 

12

Potassium 

00

0.6 

2.0

Bicarbonate 

(HCOJ

89 

85 

79 

60 

30

56 

42 

50 

67 

94 

108

Carbonate 

(COJ

1

0 

0 

0 

0

0 

0 

0 

0 

0 

4

Sulfate 

(SO,)

5.0 

5.0

Chloride 

(CI)

5.5 

5.4 

8.0 

3.9 

1.6

2.7 

1.2 

2.0 

3.0 

5.2 

7.8

FIuoride 

(F)

Nitrate 

(NOJ

0.3 

.5
SACRAMENTO RIVER BASIN Continued

11-3740. COW CREEK NEAR HILLVILLE, CALIF. Cont

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February 

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June 

Maximum ....

Minimum ....

July

Maximum .... 

Minimum ....

August 

Maximum ....

Minimum ....

September 

Maximum ....

Minimum ....

Day

1

70

64

59

56

50

47

44

39

41 

39

51

46

64

56

65

56

65

77

2

69

63

59

55

50

46

42

42

38

48

44

63

56

67

59

68

63

89 

79

3

69

63

59

57

50

48

43

42

40

48

41

61

54

66

60

68

61

90 

80

4

66

62

60

59

49

48

45

5

68

62

60

57

49

45

47

43 j 45

42

48

43

60

52

67

62

70

63

90 

79

43

48

44

61

52

67

62

65

88 

79

6

68

62

60

58

50

49

49

47

41

50

47

61

52

67

59

68

67

84

80

7

70

63

60

58

50

49

49

47

39

51

49

61

54

66

59

71

65

82

90 

80

8

71

64

60

57

49

48

49

47

40

51

49

61

54

67

60

75

67

80

79

9

71

65

59

56

48

47

10

70

65

58

54

48

44

48 47

44

40

52

50

58

54

67

64

78

72

78

86

80

45

41

55

51

54

51

68

62

77

73

82

87 

78

1 1

69

64

56

55

47

46

46

42

39

55

49

52

48

69

64

76

72

82

86 

79

12

69

64

56

56

48

47

46

42

40

55

49

56

49

69

62

75

70

82

86 

78

13

69

63

56

56

47

44

45

43

39

57

53

57

48

69

63

82

85 

79

77

14

67

63

56

55

46

43

46

41

38

57

53

59

50

67

63

82

86 

78

76

69

15

63

59

58

56

43

39

45

41

40

56

52

62

52

67

61

82

86 

78

77

69

16

61

58

57

54

40

38

45

42

39

52

47

63

55

69

62

82

78

78

71

17

61

58

59

57

40

36

44

39

39

51

45

62

55

69

64

83

86 

78

78

72

18

60

58

57

55

39

36

43

39

42

52

47

60

53

72

64

85

87 

78

74

19

62

57

57

56

39

35

41

39

46

55

48

56

49

74

65

86

84 

77

76 

73

20

62

58

57

55

39

35

41

38

50

44

53

47

56

48

75

68

84

85 

77

79

73
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued 

11-3744. MIDDLE FORK COTTONWOOD CREEK NEAR QNO, CALIF.

LOCATION. Lat 40°23'25", long 122°31'15", at gaging station on left bank, 0.4 mile upstream from North

Fork, and 7.8 miles southeast of Ono, Shasta County. 

DRAINAGE AREA. 249 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1963 to September 1965.

Sediment records: October 1963 to September 1966, 

EXTREMES, November 1965 to April 1966. Sediment concentrations: Maximum daily, 2,480 ppm Jan. 4.

Sediment loads: Maximum daily, 19,500 tons Jan. 4.

Suspended sediment, November 1965 to April 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

per 

day

NOVEMBER

Mean 

discharge

(cfs)

_

 -

_

231

167

136

122

115

126

140

136

127

108

99

94

1601

Suspended sediment

Mean

tration

(ppm)

__

__

__

66

33

13

9

8

8

17

18

15

9

6

4

"

Tons 

per 

day

__

_

_

41

15

4.8

3.0

2.5

2.7

6.4

6.6

5.1

2.6

1.6

1.0

92.3

DECEMBER

Mean 

discharge

(cfs)

87

81

76

75

75

81

83

81

77

72

70

71

66

62

59

56

53

52

52

47

50

50

44

53

61

60

57

274

297

180

169

2671

Suspended sediment

Mean 

concentration

(ppm)

5

6

4

3

3

4

4

3

3

2

!

1

2

1

1

1

2

2

2

3

3

3

3

3

3

3

3

_-

33

21

-

Tons 

per 

day

1.2

1.3

.8

.6

.6

.9

.9

.7

.6

.4

.2

.2

 4

.2

.2

.2

.3

 3

.3

 4

 4

.4

.4

.4

.5

.5

.5

385

140

16

9.6

564.4
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-3744. MIDDLE FORK COTTONWOOD CREEK NEAR ONO, CALIF. Continued 

Suspended sediment, November 1965 to April 1966 Continued

JANUARY

Day

1..

2..

3..

4..

5..

6..

7..

81.

9..

10..

11..

12..

13..

14,.

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

IB..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean

discharge

(cfs)

146

133

151

2660

2300

1440

948

762

695

572

472

372

320

320

392

432

396

346

300

264

244

228

213

201

190

183

175

168

208

316

276

15823

623

588

521

473

435

419

410

385

352

356

363

365

308

271

252

255

262

244

221

203

189

178

171

167

165

160

152

145

138

132

8903

Suspended sediment

Mean

concentration

(ppm)

18

19

62

2480

1000

530

340

190

168

116

83

68

69

71

39

39

0

2

4

4

4

4

4

"

APRIL

153

109

82

72

63

55

47

37

32

34

58

55

38

36

34

36

35

24

21

20

20

19

18

17

15

13

11

10

9

8

Tons

per 

day

7.1

6.8

5 35

S 19500

S 7280

2060

870

391

315

179

106

68

60

61

80

90

75

50

35

28

26

25

24

24

23

22

21

20

30

40

30

31581.9

257

173

115

92

74

62

52

38

30

33

57

54

32

26

23

25

25

16

13

11

10

9.1

8.3

7.7

6.7

5.6

4.5

3.9

3.4

2.9

1270.1

FEBRUARY

Mean

discharge 

(cfs)

500

3*9

579

1160

772

653

552

458

378

327

297

284

264

251

237

226

220

219

343

289

273

276

295

313

380

410

329

309

10943

Suspended sediment

Mean

tration

(ppm)

__

72

294

707

315

185

110

71

59

50

44

40

35

31

27

28

31

32

134

51

35

30

30

35

71

40

36

"

MAY

Tons

per 

day

200

68

S 860

S 2330

657

326

164

88

60

44

35

31

25

21

17

17

18

19

S 142

40

26

22

24

30

120

S 86

36

30

5536

MARCH

Mean

discharge

(cfs)

299

288

268

259

361

343

367

422

684

1130

934

778

789

805

763

681

597

532

482

432

400

370

353

350

375

428

510

570

591

612

613

16386

Suspended sediment

Mean

concentration

(ppm)

32

28

24

21

_

48

73

258

626

282

230

248

236

175

128

100

80

82

83

80

73

67

63

62

76

86

101

115

130

147

JUKE

Tons

per 

day

26

22

17

B 15

90

45

B 48

B 83

S 532

S 1910

711

483

528

513

361

235

161

115

107

97

86

73

B 64

B 60

B 63

B 88

B 118

B 155

B 184

B 215

B 243

7448

Total discharge for period Nov. 19 to Apr. 30 (cfs-days). 

Total load for period Nov. 19 to Apr. 30 (tons)..........

56327

46492.7

S Computed by subdividing day.

B computed by estimated-concentration graph.
SACRAMENTO RIVER BASIN Continued 

11-3744. MIDDLE FORK COTTONWOOD CREEK NEAR ONO, CALIF

Periodic determinations of suspended sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Nov. 18.,. .........

Time 

(24 hour)

0955 

1655 

1255 

1405 

1720 

1355

1625 

1720 

1350 

1250 

1240 

0833 

0915

Water 

temperature

65 

53 

53 

46 

42 

42

42 

42

49 

54

64 

67

Sampling 

point

Discharge 

(ds)

11 

279 

242 

85 

599 

3160

3450 

1790 

710 

1200 

125 

58 

65

Sediment 

concentration 

(ppm)

1 

219 

58 

123 

1780 

2390

2910 

725 

288 

809 

34 

25 

14

Sediment 

discharge 

(tons per day)

T 

165 

38 

28 

2880 

20400

27100 

3510 

552 

2620 

11 

4 

2

Perce

0.002 0.004 0.00

T Less than 0.05 ton.
SACRAMENTO RIVER BASIN Continued

11-3758. COTTONWOOD CREEK NEAR ONO, CALIF.

LOCATION. Lat 40°20'10", long 122 0 20'15", approximately 1 mile downstream from North Fork, and appro

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

REMARKS. Records of discharge for gaging stations at Middle Fork Cottonwood Creek near Ono and North 

flow at this station.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 7, 1965.....

Jan. 5, 1966.....

Feb. 4.... .......

May 3 ............

July 7. ..........

Sept. 2..........

Mean 

discharge 

(cfs)

11 

14 

66 

2300 

1160

288 

308 

124 

60 

20 

8.9

Silica 

(810,)

18 

20

Iron

(Fe)

Calcium 

(Ca)

22 

29

Magnesium 

(Mg)

11

17

Sodium 

(Na)

11 

11

7.6 

5.6 

6.2

7.5 

4.7 

5.6 

6.1 

8.9 

11

Potassium

(K)

0.8 

1.3

Blcarbonate 

(HCO,)

160 

147 

107 

72 

75

116 

89 

112 

116 

146 

168

Carbonate 

(CO,)

7 

4 

1 

0 

0

2 

2 

0 

0

7 

0

Sulfate 

(S0«)

10 

9.0

Chloride 

(Cl)

16 

16 

6.5 

2.2 

2.2

2.2 

1.2 

3.6 

4.4 

8.8 

15

Fluorlde 

(P)

Nitrate 

(NOJ

0.9 

.6
SACRAMENTO RIVER BASIN Continued 

11-3758.2. SOUTH FORK COTTONWOOD CREEK NEAR COTTONWOOD

LOCATION (revised). Lat 40°18'59", long 122°26'52", at gaging station 15 feet downstream from highway 

southwest of Cottonwood.

DRAINAGE AREA (revised). 217 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1958 to July 1966 (discontinued).

Sediment records: October 1962 to September 1964. 

REMARKS. No flow during August and September.

Chemical analyses parts per million, October 1965 

Date 

of 

collection

Dec. 13..........

Jan. 17, 1966.. . . 

Feb. 10......... .

Mar 2

Apr. 13..........

July 6.... .......

Discharge 

(cfs)

3.2 

5.3 

54 

245 

151

115 

328 

151 

86 

8.6

Silica 

(S1Q.)

12

Iron

(Fe)

Calcium 

(Ca)

28

Magnesium 

(Mg)

7.1

Sodium

(Na)

15 

15 

19 

12 

18

19 

8.1 

8.8 

9.5 

13

Potassium 

(K)

0.8

Bicarbonate 

(HCO,)

162 

140 

149 

146 

174

166 

99 

110 

114 

130

Carbonate 

(CO,)

4 

4 

2 

0 

5

5 

2 

0 

0 

3

Sulfate 

(S04 )

14

Chloride

(CD

22 

32 

28 

12 

14

12 

5.1 

8.3 

8.5 

16

Fluoride 

(P)

Nitrate 

(NO,

0.5
Periodic determinations of suspended-sediment discharge and particle size, 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 10. .......... 

Nov. 11. ..........

Nov. 12...... .....

Dec. 29. ..........

Time 

(24 hour)

1830 

0800 

1645 

1730 

0730 

1215

1800 

0730 

1700 

0730 

1730 

0830

1700 

1800 

0900 

0730 

0830 

1630

1000 

0900 

0800 

0900 

0800 

0930

1015 

1000 

1700 

2000 

0900 

1630

0800 

1700 

0800 

0900 

0945 

1100

Water 

temperature

(°F)

58 

58 

55 

49 

49 

52

51 

45 

47 

44 

45 

46

49 

50 

49 

49 

49 

50

48 

43

42 

45 

48

41 

45 

51 

52 

52 

52

51 

55 

54 

46 

42 

48

Sampling 

point

Discharge 

(cfs)

158 

1980 

436 

263 

247 

212

240 

152 

122 

84 

78 

75

102 

98 

184 

580 

445 

508

361 

218 

158 

129 

110 

D 105

D' 95 

D 140 

D 140 

D 190 

D 3500 

D 3500

D 10500 

D 10500 

D 7000 

D 1500 

D 1200 

D 1200

Sediment 

concentration 

(ppm)

62 

4020 

506 

180 

102 

58

86 

32 

18 

2 

3 

1

6 

2 

22 

14

100 

87

44 

17 

8 

6 

4 

6

3 

20 

7 

12 

158 

7290

6860 

13500 

16500 

2780 

1540 

1580

Sediment 

discharge 

(tons per day)

26 

2150 

596 

128 

68 

33

56 

13 

5.9 

.5 

.6 

.2

1.7 

.5 

11 

22 

120 

119

43 

10 

3.4 

2.1 

1.2 

1.7

.8 

7.6 

2.6 

6.2 

1490 

68900

194000 

383000 

312000 

11300 

4990 

5120

Perc

0.002

20

-

--

. 

20

26 

21

30

0.004

28

"

"

26

38 

31

41

0.00

3

-

-

40

48 

46

53

D Daily mean discharge.
SACRAMENTO RIVER BASIN Continued 

11-3758.2. SOUTH FORK COTTONWOOD CREEK NEAR COTTONWOOD, CAL

Periodic determinations of suspended-sediment discharge and particle size, October 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Dec. 30, 1964.....

July 5............

Time 

(24 hour)

1300 

1300 

1500 

1100 

1455 

1715

1100 

1530 

1205 

1210 

1220 

1235

1015 

1045 

1050 

1900 

1630 

1600

1615 

1755 

1625 

1350 

1710 

1900

1730 

0845 

0915 

1050 

1430 

1445

1430 

1730 

0900 

1450 

0800

Water 

temperature 

(°F)

48 

48 

44 

48 

48 

50

51 

56 

57 

57 

59 

62

51 

52 

52 

66 

69 

68

72 

67 

61 

70 

71 

72

77 

67 

68 

69 

80 

85

88 

80 

79 

81 

75

Sampling 

point

Discharge 

(cfs)

D 1000 

D 900 

D 800 

D 750 

D 900 

D 280

D 170 

D 170 

D 170 

D 180 

D 170 

D 135

D 160

280 

218 

221 

218

218 

206 

202 

174 

158 

148

145 

142 

136 

104 

97 

92

90

88 

88 

77 

48 

D 41

Sediment 

concentration 

(ppm)

1220 

920 

523 

818 

1530 

1320

20 

21 

13 

25 

21 

13

48 

61 

80 

46 

46 

71

54 

48 

42 

30 

24 

20

19 

26 

24 

24 

5 

7

4 

4 

3 

4 

6 

3

Sediment 

discharge 

(tons per day)

3290 

2240 

1130 

1660 

3720 

998

9.2 

9.6 

6.0 

12 

9.6 

4.7

21 

46 

60 

27 

27 

42

32 

27 

23 

14 

10 

8.0

7.4 

10 

8.8 

6.7 

1.3 

1.7

1.0 

1.0 

.7 

.8 

.8 

.3

Percen

0.002

19 

25

0.004

28 

40

0.008

40 

56
PACIFIC SLOPE BASINS IN CALIFORNIA

I I I I I I I I I I I

I I I I I II

I I i I I I i i I i i i i

I i I I it

I I I I I I I I II ill ' ' ! ! ! !!!!!!

I I I I I I I I I I I I I i i i i I I .... I i i I I i I I I i I i i i i i i i i i i i I II I I I I I I

I i ! ! i

i I I I i I I I I I

i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i

i i i i i i i

i i i i i i ii ill ! ! ! ! !

i i i i i i

i i i i i i i i i i i i i i i i i i i i i

i i i i i i i i i i i i i i i i i i i i i i i

NHNHH H Ol H 03 i-« H H H CO 03 03

O H E-i ' E-I fi 'E-IE-E-II^HBBBBBE-IHHBE-I

« H H rt H H

01 0101 *< o <o to co o W^WNOO in ^< to in eg *< 

oo in 01 01 c- <o to to co o) o o t» o> o t» t» t* * * n n co ci CM « N N .-i cq oi H cq N N

Q Q Q Q

N in o to i in ooooiioi 01 to oc- i o OOMOIHOICO * «toc- co laiimii 

oo oo oo c- i in « !S to i in i oo in in in I S in 3 * 3 * S m in to t in init-ii

o o o o in to in o o o in o o in in Q o o m Q Q o o in moomm tomomoim tOHOHtoo «HOnno in * cj o eo eo onnomo nnm^n m # m in « in

r-0100H<0* OOOOOC-MOO N<OOOHOrH « M O <O 00 01 C-00 rt 01 to » O <O * <O to

. bC ________________________§s p a

o

...... ...... ...... ...... ..... ...... m m ...... ...... ...... ...... ..... ...... o -H

:::::: :::::: :::::: :::::: : : : : : : : : : : \^ 

n ' ' '. ' '. :::::: :;:::: :::::: " '. '. '. '. : : : i : : 0 § ig..... ...... ...... ...... ..... ...... a s, 2 ; ; ; ; ; :::::: :::::: :::::: ''. '. '. '. : : : '. : : : a B

-I'll'. '. '. '. '. '. '. '.'.'.'.'.'. '.'.'.'. \w M in o oJ *' ' 10 ^ 

o N 10 to o oo 01 o * to o .nn4«ON nnnioaiH HHMNM -on aj-H

H H r-l H H H H « CJ « rt O) * H H H H CJ CO H N * 00 H H OJd

>>>>>>>>>>>> >>>>>>>>>>. ...... . V -J -P -J +> *> »>'4>+>*> ......

iHiHiHrHrHrH rHiHiHiHiHOA bAbAbAbfibAbA bftQ.Q.QiQiQi QiOiQiQiQi V+>+>VVVHQ

333333 333333 333333 sffffffoS) oovSfoo OOOOOO TsTTT? 5*)h)»>»i< ««:«:«:< <mmmmm mmmmia OOOOOO
SACRAMENTO RIVER BASIN Continued 

11-3758.2. SOUTH FORK COTTONWOOD CREEK NEAR COTTONWOOD, C

Periodic determinations of suspended-sediment discharge and particle size, Octo

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Nov. 19. ..........

Nov. 19.......... . 

Nov. 20...........

Nov. 22. ..........

Nov. 25... ........ 

Nov. 25. .......... 

Nov. 26...........

Nov. 26........... 

Nov. 27...........

Nov. 29........... 

Nov. 29. ..........

Nov. 30........... 

Dec . 1 ............ 

Dec . 1 ............

Dec. 2............ 

Dec . 3 ............

Dec. 4. ........... 

Dec . 5 ............ 

Dec. 6. ...........

Time 

(24 hour)

17OO 

1730 

1555 

1632 

1635 

1715

1720 

1710 

1100 

1715 

1315 

1100

1030 

1715 

1025 

1700 

1125 

1600

0955 

1100 

1700 

1110 

1710 

1000

1002 

1610 

1002 

1600 

0918 

1302

0905 

1302 

1430 

0910 

0902 

0902

Water 

temperature 

(°F)

56

Sampling 

point

Discharge 

(cfs)

2.2 

4.4 

6.2 

4.4 

D 4.8 

12

D 56 

D 300 

D 700 

744 

230 

458

300 

285 

195 

115 

95 

92

64 

86 

80 

76 

73 

63

54 

54 

54 

54 

48 

48

48 

54 

54 

60 

80 

103

Sediment 

concentration 

(ppm)

1 

1 

1 

1 

2 

1

3 

37 

1320 

771 

33 

219

76 

77 

45 

4 

2 

6

1 

3 

8 

3 

3 

8

5 

2 

5 

7 

12 

17

14 

11 

2 

15 

15 

16

Sediment 

discharge 

(tons per day)

T 

T 

T 

T 

T 

T

.5 

30

1550 

20 

271

62 

59 

24 

1.2 

.5 

1.5

.2 

.7 

1.7 

.6 

.6 

1.4

.7 

.3 

.7 

1.0 

1.6 

2.2

1.8 

1.6 

.3 

2.4 

3.2 

4.4

Pe

0.002

~

0.004

"

0.

~
PACIFIC SLOPE BASINS IN CALIFORNIA

i l i o i i i I i i i i I i I I Ill I I I I I I I I I I I I I III I I I I I I I I I I I I I

I I I I I I M i i i i i i i l i i i i i l i l l l

I I I I I I I I I I I I

I I I I I I 00 I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I

III I I I I I I I I I I I

i o l l l l

I I I I I * I I I I I I I I I I I I I O I I I I

I l l l l i i l l I i i

I I I I I I I I I ... ....... I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I I I I

I I I I I I I

I I I I I I I I I I I I I I I I I I I I I I I I I I

I I I I I I I I I

rt CD C~ 03 ^< in M 00

00 M rt O O Ort ^ C-UIMt

O M CD 03 00

) O 03 00 O O OOOOO^O O 00 ID Ol in C- CD in 00 00 tt O M C- M rt O rt O 03 * M rt ^ 00 

IMrt^lCOCO Ol rt M M rt M rt ID in M M N M M N M rt rt rt rt M N C- in rt rt rt rt

oincDcDMoo OOO^CDOO inininooin cqaooinooro OO^DMCOOOOO

M M N O !D M rt 03 n rt O 

)M MM MNrtrtrtrt rtrtCOMNM MNMMMrt rtrtrtrt rt MNrtrtrtrtrt

l IMM MI looini tooioito^c- o>Mrtc-Mo

ooooooo o o in o o in o o o o in o o in in o O in o o in o o o in o in in o o in

o o o rt n « in McmoN* MOoOrtO o o o to o o rtooooo o o N * n o o

toot-t^iomm !Dt»t-t-(ot- o> n o f- en t- o * * to o in r> rt 01 oo oo en to oo oo o t- * in j>

COM oo o> -or- o OrtMMoooi

VVVaaa dadaOV g>oVVV
SACRAMENTO RIVER BASIN Continued 

11-3758.2. SOOTH FORK COTTONWOOD CREEK NEAR COTTONWOOD, C

Periodic determinations of suspended-sediment discharge and particle size, Octob

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, plpet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Feb. 26, 1966.....

Mar. 14. ..........

Mar. 15. ..........

Max1 29

May 5. ............

Time 

(24 hour)

1030 

1040 

1735 

1720 

1740 

1800

1805 

1730 

1735 

1800 

1700 

1730

1805 

1745 

1800 

1720 

1740 

1730

1805 

1730 

1105 

1530 

1430 

1512

1125 

0930 

1030 

1730 

1740

1715 

1730 

1810 

1730 

1745 

1730 

1040

Water 

temperature 

(°F)

45 

50 

46 

46 

46 

47

48 

47 

47 

48 

50 

51

51 

51 

52 

52 

53 

53

53 

51 

50 

51 

52 

64

54 

52 

54 

54 

54

54 

64 

68 

70 

70 

70 

63

Sampling 

point

Discharge 

(cfs)

190 

240 

388 

418 

400 

285

255 

240 

210 

190 

175 

170

175 

200 

250 

310 

388 

444

507 

549 

542 

472 

418 

424 

394 

430 

437 

364 

280

265 

290 

255 

220 

180 

146 

215

Sediment 

concentration 

(ppm)

32 

70 

188 

166 

174 

170

164 

164 

174 

172 

158 

168

172 

156 

172 

159 

173 

172

162 

10 

45 

44 

118 

153 

101 

144 

126 

147 

123

117 

25 

6 

29 

14 

62 

31

Sediment 

discharge 

(tons per day)

16 

45 

197 

187 

188 

131

113 

106 

99 

88 

75 

77

81 

84 

116 

133 

181 

206

222 

15 

66 

56 

133 

175 

107 

167 

149 

144 

93

84 

20 

4.1 

17 

6.8 

24 

18

Per

0.002

-

-

-

0.004 0.0
SACRAMENTO RIVER BASIN Continued 

11-3760. COTTONWOOD CREEK NEAR COTTONWOOD, CALI

LOCATION. Lat 40°23'10", long 122°14'15", at gaging station 2 miles east of Cottonwood, Shasta County

DRAINAGE AREA. 922 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: October 1962 to September 1966.

Sediment records: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 82°F June 15; minimum, 39°F Dec. 17, 19, 20, Jan. 1

Sediment concentrations: Maximum daily, 3,080 ppm Jan. 5; minimum daily, 2 ppm Oct. 11-13.

Sediment loads: Maximum daily, 81,000 tons Jan. 5; minimum daily, 0.4 ton Oct. 11-13.

EXTREMES, 1962-66. Water temperatures (1962-63, 1964-66): Maximum (1964-66), 84°F on several days du

during 1963-64.

Sediment concentrations: Maximum dally, 4,520 ppm Dec. 22, 1964; minimum daily, 1 ppm on many days 

Sediment loads: Maximum daily, 597,000 tons Dec. 22, 1964; minimum daily, 0.1 ton Sept. 30, Oct. 1, 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 7, 1965..... 

Nov. 4...........

Jan. 17, 1966.... 

Feb. 10..........

May 2............

Sept. 1..........

Mean 

discharge

(eta)

89 

87 

298 

1080 

1070 

968

1040 

426 

260 

85 

54 

54

Silica

(siq.)

16 

22

Iron 

(Fe)

Calcium

(Ca)

25 

18

Magnesium 

(Mg)

9.4 

9.8

Sodium 

(Na)

7.3 

8.3 

10 

7.7 

9.1 

9.9

6.0 

7.1 

7.4 

8.7 

7.9 

7.8

Potassium 

(K)

0.8 

1.4

Bicarbonate 

(HCO,)

103 

118 

117 

124 

125 

126

97 

122 

110 

128 

111 

110

Carbonate

(ccg

2 

2 

2 

0 

0 

0

0 

0 

2 

0 

0 

0

Sulfate 

(SO.)

11 

7.0

Chloride 

(Cl)

4.3 

7.2 

12 

5.6 

5.9 

4.8

2.3 

5.2 

5.2 

5.8 

3.2 

3.2

Fluorlde

(F)

Nitrate 

(NO,

0.7

.9

.7

A Calculated from determined constituents.
QUALITY OF SURFACE WATERS, 1966

6666 66 66 66 66 66 66 66 66 66^66

33£33^33 33 33 33 33 33 33 33 33 Si 33

; 6.6-|.6.S.2.e S ^,.6.6 g-,6.6 .S 6 .6.6 .S 6 .6.6 .§.6^.6.6-^.66
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued 

11-3760. COTTONWOOD CREEK NEAR COTTONWOOD, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

OCTOBER

Day

1..

2..

3..

4..

5..

6..

7. .

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3«.

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean 

discharge 

(cfs)

93

110

95

92

110

95

89

89

82

79

82

82

76

92

102

112

118

135

123

129

138

120

108

112

108

108

102

98

115

112

115

3221

Suspended sediment

Mean

concen- 

(ppm)

_

5

2

2

2

5

5

5

4

4

4

Tons

per 

day

2.4

2.8

2.4

2.2

2.6

2.3

2.0

1.9

1.4

8 1.1

.4

.4

B .4

8 .2

.4

.5

.3

.5

.3

3 .0

3 .1

4 .3

4

4

.2

.2

.2

.2

.1

.0

.4

.3

--

.4

44.9

JANUARY

540

482

468

6350

9200

4890

3470

2750

2330

1840

1500

1260

1120

1060

1080

1110

1080

1010

942

878

810

781

746

706

673

648

630

600

636

1170

918

51678

15

8

8

1670

3080

1470

469

190

110

50

28

26

23

21

18

17

16

16

19

17

16

16

16

17

19

13

16

22

25

127

100

"

22

10

10

K 48000

K 81000

K 20000

K 4500

8 1410

8 692

8 248

8 113

8 88

8 70

8 60

8 52

8 51

47

44

48

40

35

34

32

32

35

23

27

36

B 43

K 410

B 248

157460

NOVEMBER

Mean 

discharge 

(cfs)

123

102

90

87

89

90

112

160

199

147

126

141

449

1620

4520

1220

1420

2350

1380

934

712

600

540

535

584

550

540

459

430

410

"

20719

Suspended sediment

Mean

(ppm)

_-

__

297

925

1040

84

221

325

100

50

25

12

9

9

8

8

8

8

B

7

-

Tons

per 

day

1.6

1.3

1.2

1.1

1.1

1.2

2.0

6.0

1 0

5.0

4.5

9.0

K 460

K 4100

K 16000

K 320

K 1700

K 2200

B 373

B 126

B 48

B 19

B 13

B 13

B 13

B 12

B 12

8 9.9

8 9.3

8 7.7

25479.9

FEBRUARY

1720

1350

1480

5970

3360

2640

1800

1440

1210

1070

950

878

818

774

732

692

660

648

918

950

802

760

818

878

930

2000

1240

1090

38578

835

120

351

2660

684

249

115

58

40

35

34

29

22

20

17

14

16

17

33

40

23

19

25

24

37

197

90

40

"

K 5200

437

K 2800

K 45000

K 6700

K 1800

559

226

131

101

87

69

49

42

34

26

29

30

S 91

S 104

50

39

55

57

K 110

K 1100

B 301

118

65345

DECEMBER

Mean 

discharge

(cfs)

390

370

346

342

342

350

358

346

330

318

306

310

298

280

269

258

248

241

234

227

216

224

213

230

255

262

248

597

1300

7i,6

630

11084

Suspended sediment

Mean

concen- 

(ppm"

7

7

7

7

6

6

6

7

7

B

B

B

7

7

7

7

7

7

7

6

6

6

6

17

21

20

20

69

46

24

35

Tons

per

day

B 7.4

8 7.0

8 6.5

8 6.5

8 5.5

B 5.7

5.8

6.5

6.2

6.9

6.6

6.7

5.6

5.3

5.1

4.9

4. 7

4.6

4.4

3.7

3.5

3.6

3.5

B 11

8 14

14

13

K 230

K 210

K 49

60

727.2

MARCH

1020

968

29

26

886 23

848 ' 22

1160 43

1170 ' 47

1110

1080

1320

2260

2210

1950

1930

1980

1930

1810

1580

1420

1310

1210

1140

1080

1020

986

986

1030

1140

1300

1410

1510

1570

42324

41

32

104

522

301

155

140

140

118

61

65

70

62

45

33

36

36

39

43

52

102

121

162

203

208

-

80

68

55

B 50

K 140

'48

123

93

K 400

K 3200

S 1810

816

730

748

615

298

277

268

219

147

102

105

99

104

114

145

S 315

425

617

828

882

14021

S Computed by subdividing day.

B Computed from estimated-concentration graph.

K Computed from estimated-concentration graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-3760. COTTONWOOD CREEK NEAR COTTONWOOD, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Conti

Day

1..

2..

3..

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

1630

1620

1480

1350

1270

1270

1230

1190

1160

1190

1170

1140

1040

938

874

874

914

898

826

738

674

634

602

570

562

554

538

506

474

458

28374

Suspended sediment

Mean

concentration

(ppm)

223

155

122

93

80

76

76

75

70

72

65

43

42

37

38

42

40

22

20

18

16

14

12

11

11

10

10

10

10

10

~

Tons

per 

day

981

678

488

339

274

261

252

241

219

231

205

132

118

94

90

99

99

53

45

36

29

24

20

17

17

15

15

14

13

B 12

5111

JULY

92

91

96

102

94

85

81

83

85

100

92

89

83

83

89

79

74

75

75

72

72

68

54

54

56

53

56

70

66

56

58

2383

10

10

9

9

9

9

9

9

9

9

9

9

9

12

15

15

14

14

14

14

13

13

13

10

7

6

6

12

12

12

10

-

2.5

2.5

2.3

2.5

2.3

2.1

2.0

2.0

2.1

2.4

2.2

2.2

B 2.0

B 2.7

B 3.6

B 3.2

B 2.8

B 2.8

B 2.8

B 2.7

B 2.5

B 2.4

1.9

1.5

1.1

.9

B .9

B 2.3

2.1

1.8

1.6

68.7

MAY

Mean 

discharge

(cfs)

450

426

418

450

466

482

466

450

434

442

458

434

410

378

354

370

338

324

318

306

300

306

300

288

276

260

260

265

260

260

270

11219

Suspended sediment

Mean

concentration 

(ppm)

9

9

9

15

12

12

16

15

14

14

20

19

15

15

16

13

10

10

13

12

12

~

Tons

per 

day

B 11

B 10

B 10

18

15

16

20

18

16

17

25

22

17

15

15

13

.1

.9

.7

.4

.3

.4

.3

.0

.7

.3

.3

.2

.1

8.4

8.7

371.8

AUGUST

68

70

68

68

56

49

49

42

47

56

51

54

60

68

75

75

60

54

56

53

56

60

58

70

56

56

66

72

62

60

56

1851

9

8

10

22

17

12

12

14

22

18

12

10

9

8

8

10

~

.7

.5

B .8

B .0

.6

.6

.6

B .6

B .8

B .7

B .7

B .5

.5

.5

.6

1.4

1.0

.6

.6

.7

.8

.8

.6

.8

.6

.6

.9

1.2

1.2

1.5

1.5

44.5

JUNE

Mean 

discharge

(cfs)

276

260

245

235

225

230

230

225

220

204

192

184

177

167

154

161

161

146

130

130

140

130

130

133

128

123

117

110

102

94

5159

Suspended sediment

Mean

concentration 

(ppm)

14

13

12

12

13

12

11

10

10

12

12

13

13

13

14

14

14

13

12

11

21

25

23

20

16

13

12

11

11

11

-

Tons

per 

day

10

9.1

7.9

7.6

7.9

7.5

6.8

6.1

5.9

6.6

6.2

6.5

6.2

5.9

5.8

6.1

6.1

5.1

4.2

3.9

B 7.9

8.8

8.1

7.2

5.5

4.3

3.8

3.3

3.0

2.8

186.1

SEPTEMBER

54

54

54

62

72

68

66

70

72

68

62

53

53

56

58

87

83

96

108

98

100

89

87

75

68

64

54

64

68

64

2127

11

12

13

13

12

11

10

11

12

14

13

12

12

13

12

11

11

12

12

12

11

11

11

12

13

14

14

14

13

13

-

1.6

1.7

1.9

2.2

2.3

2.0

1.8

2.1

2.3

2.6

2.2

1.7

1.7

2.0

1.9

2.6

2.5

3.1

3.5

3.2

3.0

2.6

2.6

2.4

2.4

2.4

2.0

2.4

2.4

2.2

~

69.3

Total discharge for year (els-days). 

Total load for year (tons)..........

218717

268929.4

B Computed from estimated-concentration graph.
SACRAMENTO RIVER BASIN Continued

11-3760. COTTONWOOD CREEK NEAR COTTONWOOD, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled 

Date of collection

Nov. 16, 1965.....

Mar. 9............

Time 

(24 hour)

0900 

1217 

1000 

1705 

1600 

1205

Water 

temperature

(°F)

55 

54 

42 

45 

46 

48

Sampling 

point

Discharge

(cfs)

1240 

2430 

9400 

1230 

5080 

1300

Sediment 

concentration 

(ppm)

91 

310 

3190 

45 

2400 

72

Sediment 

discharge 

(tons per day)

305 

2030 

80960 

149 

32920 

253

Perce

0.002

12

14

0.004

19 

17

0.008

25 

24
SACRAMENTO RIVER BASIN Continued

11-3765.5. BATTLE CREEK BELOW COLEMAN FISH HATCHERY, NEAR C

LOCATION. Lat 40°23'55", long 122°08'45", at gaging station on right bank 3.7 miles downstream from 

east of Cottonwood, Shasta County. 

DRAINAGE AREA. 358 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1961 to September 1966 (discontinued).

Water temperatures: December 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 69°F Aug. 1-5; minimum, 41°F Dec. 17. 

REMARKS. Clock stopped Aug. 20 to Sept. 12; temperature range, 57°F to 66°F.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Dec. 13..........

Feb. 4... ........

Apr. 12...... ....

July 6.......... .

Sept. 1..........

Mean 

discharge 

(cfs)

272 

272 

308 

939 

844

377 

583 

436 

331 

266 

190

Silica 

(S1Q.)

35 

46

Iron 

(Fe)

Calcium 

(Ca)

8.8 

10

Magnesium 

(Mg)

5.4 

8.0

Sodium 

(Na)

8.2 

8.1 

7.6 

5.0 

4.9

7.1 

5.4 

6.1 

7.0 

7.9 

9.2

Potassium 

(K)

1.6 

2.3

Blcarbonate 

(HCO,)

83 

84 

78 

46 

50

77 

57 

66 

73 

84 

91

Carbonate 

(CO,)

1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

3.0 

3.0

Chloride 

(Cl)

1.3 

1.3 

2.1 

1.6 

1.4

.9 

.6 

1.3 

1.2 

1.4 

1.8

Fluorlde 

(F)

Ni

trat

(NO

0

A Calculated from determined constituents.
PACIFIC SLOPE BASINS IN CALIFORNIA

JO- 40 4 O II

44 4 * 44 44 o in II

«* in* o^oo 004- om *4 44 * * mift om

^ E |

leg

3 S

B 6

11

e e

6 £

e E

3 3

11

s e s

3 3 3

e e EI s 11
SACRAMENTO RIVER BASIN Continued 

11-3765.5. BATTLE CREEK BELOW COLEMAN FISH HATCHERY, NEAR COTTONW

Periodic determinations oi suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Dec. 16...........

Hay 2.. ...........

Time 

(24 hour)

1125 

1023 

1034 

0910 

1525

1050 

1420 

1220 

1435 

1310

Water 

temperature

58 

51 

51 

41 

46

48 

52 

53 

49 

57

Sampling 

point

Discharge 

(cfs)

273 

827 

827 

282 

906

380 

425 

535 

620 

450

Sediment 

concentration 

(ppm)

3 

73 

102 

7 

21

20 

12 

39 

21 

10

Sediment 

discharge 

(tons per day)

2.2 

163 

228 

5.3 

51

21 

14 

56 

35 

12

Perc

0.002 0.004 0.00
SACRAMENTO RIVER BASIN Continued

11-3772. SACRAMENTO RIVER AT BEND, CALIF.

LOCATION. Lat 40°16'10", long 122°13'40", at highway bridge at Bend, Tehama County, approximately 7.

0.3 mile upstream from Spring Creek, and, approximately 9 miles north of Red Bluff. 

DRAINAGE AREA. 9,022 square miles, excluding Goose Lake basin, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: May 1955 to September 1966.

Water temperatures: May 1955 to June 1963. 

REMARKS. Records of discharge given for Sacramento River near Red Bluff. No appreciable inflow betw

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Mar. 8...........

Sept. 13....... ..

Mean 

discharge

(cfs)

8320 

8540 

10500 

13700 

15600 

8400

7890 

9720 

10700 

13200 

13000 

7970

Silica 

(S1Q.)

19 

19

Iron 

(Fe)

Calcium 

(Ca)

11

9.8

Magnesium 

(Mg)

5.0 

5.3

Sodium 

(Na)

5.7 

6.1 

5.6

7.4 

5.4 

7.3

6.6 

6.5 

6.2 

6.2 

5.7 

5.8

Potassium 

(K)

1.0 

1.0

Bicarbonate 

(HCO,)

61 

66 

61 

67 

53 

64

67 

65 

64 

62 

61 

62

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

5.0

6.0 

5.0

Chloride 

(Cl)

1.4 

2.0 

2.4 

2.6 

2.3 

2.0

3.0 

1.7 

2.3 

2.0 

1.7 

2.0

Fluoride

(F)

Nitrat

(NO

2.

.

.

.

.

.

.

.
SACRAMENTO RIVER BASIN Contir

11-3775. PAYNES CREEK NEAR RED BLUFF, CALIF.

LOCATION. Lat 40°15'50", long 122°11'10", at gaging station, 0.4 mile upstream from mouth, and 6.5 m

DRAINAGE AREA. 92.7 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1958 to June 1966 (discontinued).

REMARKS. No flow July to September.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Jan. 17, 1966....

Apr. 12.. ........

June 2 ...........

Mean 

discharge 

(cfs)

0. 8 

1.8 

11 

31 

111

76 

18 

2.6 

.4

Silica 

(SiQ.)

42

Iron 

(Fe)

Calcium 

(Ca)

14

Magnesium 

(Mg)

8.0

Sodium 

(Na)

18 

19 

17 

13 

7.8

8.7 

13 

15 

16

Potassium 

(K)

1.5

Bicarbonate 

(HCOS)

113 

115 

114 

94 

68

71 

97 

106 

110

Carbonate

(ccg

2

0 

0 

0 

0

0 

0 

0 

0

Sulfate 

(S04)

2.0

Chloride 

(CD

15 

14 

14 

8.6 

3.2

3.8 

7.8 

10 

14

Fluoride 

(F)

N

tra

(N

1
SACRAMENTO RIVER BASIN Continued 

11-3780. SACRAMENTO RIVER NEAR RED BLUFF, C

LOCATION. Lat 40°13'55", long 122°10'50", temperature recorder at gaging station o

0.5 mile downstream from Sevenmile Creek, and 4.6 miles northeast of Red Bluff, 

DRAINAGE AREA. 9,022 square miles, excluding Goose Lake basin.

RECORDS AVAILABLE. Water temperatures: November 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 58°F on several days during May; 

and February.

EXTREMES, 1960-66. Water temperatures: Maximum (1961-63, 1964-66), 60°F Oct. 3-7, 

Temperature (°F) of water, water year October 1965 t

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Minimum .... 

March

Maximum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

53

53

53

53

50

50

47

47

45

45

46

5*

54

52

52

55

55

53

5S

54

5?

54

5*

2

54

53

53

52

51

50

47

47

45

45

46

54

54

53

52

b5

54

5S

5?

54

53

55

54

34 5 ; 6

54 54

54 54

1 521 53

52 52

51

51

47

47

45

45

46

54

54

53

53

54

54

52

52

 >4

54

55

55

51

54

54

53

52

51

51 51

47

46

46

45

46

54

54

54

53

!>4

54

5?

5?

54

54

55

55

46

46

47

46

46

54

54

54

54

55

54

54

52

54

53

55

55

54

54

7 I 8 9

54

54

52 52

52 52

54

54

54

5*

52 ' 52

52 52

51

51

51 51

51 51

47 48 48

46 47

47

47 47

46 1 46

54

54

55

54

55

54

54

53

54

54

55

55

54

54

55

55

54

54

54

53

54

53

55

55

48

46

47

54

54

55

55

51

10

54

54

5?

52

51

51 51

48 48

48 48

48

54

54

55

55

1

55

54

54

53

54

53

55

55

55

55

53

5?

54

53

55

55

49

54

53

55

55

55

55

53

52

54

53

55

55

11 1213

55

54

5?

52

51

51

55 55

55 55

52

52

51

51

48 48

48 48

49

53

5?

56

55

55

55

53

52

54

53

55

55

49

52

52

56

55

55

55

53

51

54

53

55

55

5?

52

51

51

48

48

50

53

5?

55

55

56

55

52

51

54

53

55

55

1 4 1 5 j 1 6

55

55

5?

52

51

51

48

48

50

53

53

55

55

56

56

52

51

54

53

56

56

55 54

54 53

53

5?

51

50

48

48

50

53

53

55

55

57

56

5?

51

54

53

56

56

53

53

50

50

48

47

49

54

53

55

55

56

56

52

51

54

53

56

56

17

53

52

55

53

50

50

47

47

49

54

54

56

55

56

55

52

51

53

53

56

56

18 19 [20

52

52

54

53

50

50

47

47

49

54

53

56

56

56

55

52

51

53

53

56

56

5?

5?

53

53

50

50

47

47

48

53

5?

56

56

55

54

53

51

54

53

56

5?

5?

53

53

50

50

47

46

48

52

51

57

56

54

54

53

51

54

54

56

56 |56
SACRAMENTO RIVER BASIN Continued

11-3785. SACRAMENTO RIVER AT RED BLUFF, CAL

LOCATION. Lat 40"10 I 40", long 122°13'50", at bridge on U.S. Highway 99E at Red Bluff

from gaging station near Red Bluff.

DRAINAGE AREA (revised). 9,022 square miles, excluding Goose Lake basin, upstream f

RECORDS AVAILABLE. Water temperatures: October 1957 to September 1966.

Sediment records; October 1957 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 61°F May 23; minimum, 44"F Jan. 26

Sediment concentrations: Maximum daily, 1,660 ppm Jan. 5; minimum daily, 2 ppm Au

Sediment loads: Maximum daily, 306,000 tons Jan. 5; minimum daily, 63 tons Sept. 2

EXTREMES, 1957-66. Water temperatures: Maximum, 66°F June 1, I960; minimum, 38°F J

Sediment concentrations: Maximum daily, 2,920 ppm Dec. 22, 1964; minimum daily, 1 

Sediment loads: Maximum daily, 876,000 tons Dec. 22, 1964; minimum daily, 12 tons 

REMARKS. Records of daily discharge data given for Sacramento River near Red Bluff. 

and gaging station except during periods of heavy local runoff.

Temperature (°F) of water, water year October 1965 to 

October .......

November .....

February. ......

June ..........

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

August ........

September .....

1

52

45

57

55

56

2

55

44

_

57

3

53

45

56

55

4

 H

46

46

5

54

47

55

59

6

 56

46

55

58

7

54

45

_

58

8

 >6

45

57

55

9

53

46

_

10

 > >

47

5^

57

56

58

1 1

53

49

12

54

46

56

58

13

54

47

57

14

55

53

47

_

58

15

55

45

60

55

Day

16

57

54

46

_

58

17

55

47

58

55

18

5?

54

19

54

47

 >R

58

20

5^

52

48

57
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-3785. SACRAMENTO RIVER AT RED BLUFF, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

19..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

29..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

9..

6..

7..

8..

9..

10..

11..

12..

13..

14..

19..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

26..

29..

30..

31..

Total

OCTOBER

Mean

discharge

(cfs)

8320

8270

8290

8320

8320

8320

8350

8350

8350

8350

8370

8400

8430

8480

8960

8510

8960

8560

8620

8990

8590

8590

8560

8540

8540

8540

8560

8590

8620

8620

8650

262720

Suspended sediment

Mean

concentration 

(ppm)

8

10

12

8

8

8

9

10

9

9

9

9

8

9

15

18

13

10

12

10

6

9

7

8

8

7

6

6

5

5

8

Tons

per 

day

180

223

269

180

180

180

203

225

203

203

203

204

182

206

347

414

300

231

279

232

139

116

162

164

184

161

139

139

116

116

187

6287

JANUARY

14900

13800

13700

26400

63800

29700

23100

21200

20900

19900

19100

18600

18100

18000

18000

18000

18000

17900

17600

17600

17500

17500

17500

17500

17400

16300

14400

13900

13200

16100

13800

603400

27

10

9

668

1660

330

160

100

74

48

44

40

33

27

30

1060

373

333

S 73200

S 306000

26500

9980

5720

4180

2980

2270

2010

1610

1310

1460

34 1650

28 1360

30 , 1490

33 1970

29

23

22

20

20

21

16

19

18

20

92

21

1190

1090

1040

945

945

987

704

599

676

713

4000

762

49826T

NOVEMBER

Mean

discharge

(cfs)

8540

8350

8320

8350

8320

8350

8370

8620

8690

8590

8910

8700

9210

11700

18800

12300

12400

17700

13000

12900

13000

12200

12600

14400

14800

15300

15700

14400

10900

8140

340720

Suspended sediment

Mean

concentration 

(ppm)

10

7

5

5

6

9

11

9

8

7

7

8

14

34

1230

199

406

968

79

70

32

20

23

36

35

52

44

23

19

17

-

Tons

per 

day

231

158

112

113

135

203

249

209

187

162

161

188

348

S 1090

S 73100

S 7280

S 16400

S 29300

2630

2440

1120

659

782

1400

1400

2150

1870

894

539

374

145884

FEBRUARY

15700

14900

13100

25200

19300

23600

15600

13200

12200

11700

10700

9950

9720

9520

9370

8760

8210

8160

8900

10100

8210

7860

8290

10000

10100

12000

9490

8730

332570

40

40

16

579

240

409

70

28

22

22

16

13

16

14

12

13

12

IB

28

49

15

11

11

31

32

168

33

12

-

1700

1610

566

S 41000

12500

S 27900

2950

998

725

699

462

349

420

360

304

307

266

397

673

1230

333

233

246

837

873

5440

846

283

104103

DECEMBER

Mean

discharge

(cfs)

7870

11400

13400

13700

13800

13800

13900

14100

14100

14100

14100

14100

14100

14000

14000

13900

13900

14000

13900

13900

13100

12700

12700

13200

13900

13200

13000

14200

18100

19900

17700

426970

Suspended sediment

Mean

concentration 

(ppm)

19

23

28

23

23

18

15

15

14

15

20

15

13

19

24

20

14

13

11

7

19

19

11

14

11

13

9

44

218

63

176

Tons

per 

day

404

708

1010

891

857

671

563

571

533

571

761

571

B 495

B 718

907

751

525

491

413

263

531

692

377

499

401

463

316

S 2010

S 11200

S 2660

S 8820

40963

MARCH

8370

8080

7430

6890

7910

7860

7810

8400

8700

11800

11200

9690

8990

9040

9630

10400

10900

11600

12600

12300

12900

12200

11600

11900

10200

8980

9750

9430

8620

8400

8430

301130

12

13

15

15

20

20

19

19

21

84

76

99

44

39

37

42

39

90

39

39

31

31

21

16

21

19

IB

19

22

26

31

271

284

301

277

406

424

316

340

493

2680

2300

1440

1060

854

962

1180

1030

1570

1330

1160

1090

1020

658

914

578

461

474

382

512

590

706

25623

S Computed by subdividing day.

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-3785. SACRAMENTO RIVER AT RED BLUFF, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge 

(cfs)

8480

8480

8350

8130

7890

7700

7620

7590

7590

9920

9720

10200

8430

8080

8650

9520

10500

11300

11600

11400

11300

11200

11000

11000

10700

10100

9980

9920

9840

9810

286000

12600

12700

13100

13100

13100

13100

13200

13200

13200

13300

13500

14100

14100

14200

14200

14200

14300

14400

14500

14500

14500

14600

14000

13700

13700

13700

13800

14000

14300

12900

12900

424700

Suspended sediment

Mean

concentration

(ppm)

30

42

46

30

24

21

39

27

16

381

110

56

34

21

27

30

25

33

34

20

14

13

18

16

16

13

Tons

per 

day

687

962

1040

659

511

437

802

553

328

10200

2890

1540

774

458

631

771

709

1010

1060

616

427

393

535

475

462

355

15 404

13

11

11

348

292

291

30620

JULY

10 ! 340

9 1 309

11

13

13

9

9

10

11

11

11

13

14

12

9

8

9

9

9

8

10

12

10

7

4

3

4

5

6

7

7

-

389

460

460

318

321

336

392

395

401

495

533

460

3*5

307

347

350

352

313

392

47J

378

259

148

111

149

189

232

244

244

10462

MAY

Mean 

discharge 

(cfs)

9780

9780

9720

9780

9840

9890

9860

9840

9840

10200

10800

10700

10700

10600

10600

10500

10500

10300

9460

9460

9430

9400

9350

9320

9350

9320

9350

9400

9430

9460

9520

305480

12800

13100

13200

13100

13000

13000

13000

1304)0

13000

13000

13000

13000

12800

13000

13000

13000

13000

13000

13000

13100

13100

12900

12400

12100

12100

12100

12100

12100

12000

11700

10200

392900

Suspended sediment

Mean

tration 

(ppm)

13

22

17

11

13

14

14

14

16

22

18

18

14

9

12

21

23

23

20

11

17

17

10

6

8

15

11

8

11

13

13

Tons

per

day

343

581

446

290

345

374

373

372

425

606

525

JUNE

Mean 

discharge 

(cfs)

9490

9520

9810

10600

10600

10700

10700

10700

Suspended sediment

Mean

concentration

(ppm)

7

8

11

9

7

7

8

9

10600 9

10500 7

10500 6

520 ' 10500

404 ' 10400

258 , 10400

343

595

652

640

511

281

433

431

252

151

202

377

278

203

280

332

334

12157

AUGUST

8

11

14

13

12

14

18

18

16

13

10

8

7

7

6

7

8

7

4

4

4

4

4

4

3

2

2

3

4

4

4

276

389

499

460

421

491

632

632

562

456

351

281

242

246

211

246

281

246

140

141

141

139

134

131

98

65

65

98

130

126

110

8440

10600

11500

11500

11800

11

24

25

16

20

32

32

12500 24

12500

12600

12600

12600

12500

12500

12500

12600

12600

12500

12600

341020

15

20

26

23

12

10

12

14

15

13

12

Tons

per 

day

179

206

291

258

200

202

231

260

258

198

170

312

674

702

458

621

994

1020

810

506

680

885

782

405

338

405

476

510

439

408

13878

SEPTEMBER

9150

8730

8700

8700

8760

8670

8370

8390

8240

7890

7860

7920

7970

7940

7940

7940

7970

7940

8020

8000

7940

7890

7890

7860

7860

7810

7750

7750

7750

7780

243380

10

5

4

5

5

4

4

3

3

247

118

94

117

118

94

90

68

67

3 , 64

3

4

4

4

4

3

3

3

5

5

4

3

3

3

3

4

4

3

4

5

64

86

86

86

86

64

65

64

108

108

86

64

64

64

64

B4

84

63

84

105

2656

Total discharge for year (cf s-days) .................................................... 4260990

Total load for year (tons) ............................................................. 858960
SACRAMENTO RIVER BASIN Continued 

11-3785. SACRAMENTO RIVER AT RED BLUFF, CALIF. Cont

Periodic determinations of suspended-sediment di 

(Methods of analysis: B, bottom withdrawal t 

P, pipet; S, sieve; V, v

Date of collection

Mar. 2. ...........

Time 

(24 hour)

1625 

1320 

0725 

0830 

1505 

1015 

1435

Water 

temperature 

(°F)

55 

52 

54 

45 

47 

46 

46

Sampling 

point

Discharge 

(cfs)

23400 

11400 

19600 

76300 

17700 

28000 

8050

Sediment 

concentration 

(ppm)

2030 

105 

323 

1840 

40 

481 

12

scharge and particle size, wate

ube; C, chemically dispersed; D, de

sual accumulation tube; W, in distil

Sediment 

discharge 

(tons per day)

12830O 

3230 

17100 

379000 

191*3 

36368' 

261

Perc

0.002

40

0.004

57

0.00

6

11-3788. RED BANK CREEK NEAR RED BLUFF, CALIF.

from u

LOCATION. Lat 40°05'25", long 122°24'45", at gaging station on road bridge, 0.1 mile downst

about 13 miles west of Red Bluff, Tehama County. 

DRAINAGE AREA. 93.5 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1959 to September 1966. 

REMARKS. No flow during most of year.

Chemical analyses, in parts per million, October 1965 to May 

Date 

of 

collection

Dec. 2, 1965... ..

Feb. 9... ........

Mean 

discharge 

(cfs)

17 

A130 

25 

12 

A 21 

37

Silica 

(SiO,)

15

Iron 

(Fe)

Calcium 

(Ca)

56

Magnesium 

(Mg)

28

Sodium 

(Na)

17 

8.4 

13 

16 

17 

17

Potassium 

(K)

1.2

Bicarbonate 

(HCO,)

240 

148 

243 

236 

260 

274

Carbonate 

(CO,)

16 

0 

5 

10 

4 

0

Sulfate 

(S0«)

51

Chloride 

(Cl)

14 

1.9 

3.1 

5.0 

6.0 

, 9.6

Fluoride 

(F)

Nitrate 

(NO,)

0.4

0 

A Discharge at time of sampling.
SACRAMENTO RIVER BASIN Continued

11-3790. ANTELOPE CREEK NEAR RED BLUFF, CALI

LOCATION. Lat 40°12'10", long 122°07'05", at gaging station in Rio De Los Berrendos Grant, 1.8 miles 

Co., 6.5 miles east of Red Bluff, Tehama County, and 9.7 miles upstream from mouth. 

DRAINAGE AREA. 123 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Dec. 13..........

Jan. 17, 1966.... 

Feb. 9...........

Mean 

discharge

(cfs)

40 

42 

47 

69 

131

128 

165 

117 

52 

34 

32

Silica 

(S1Q.)

25 

37

Iron 

(Fe)

Calcium 

(Ca)

6.6 

12

Magnesium 

(Mg)

3.6 

7.4

Sodium

(Na)

10 

9.9 

9.2 

7.3 

5.6

6.5 

4.2 

4.9 

7.8 

11 

11

Potassium 

(K)

0.8 

1.3

Blear - 

bonate 

(HCOJ

79 

82 

80 

72 

62

60 

40 

50 

69 

80 

82

Carbonate 

(CO,)

2 

1 

0 

0 

0

0 

0 

0 

0 

0 

3

Sulfate 

(SO,)

1.0 

2.0

Chloride 

(Cl)

7.0 

6.1 

7.6 

4.9 

2.8

3.0 

1.2 

1.9 

5.3 

7.1 

6.7

Fluorlde

(F)

Nitrat

(NO

0.

.

A Calculated from determined constituents.
PACIFIC SLOPE BASINS IN CALIFORNIA

=- s.

t'ztti

5 H fc(i)

K

Qi

C S . > -a i ' « o "ft

f S||5g£ * * \§1N

i 8 i a c 5

O 3 T3 C O -H *g SOB g

5s is!*

i» 3IIM

B o" III 

 00 H

S oo S H

"$« « fa i- A o las 8 §5 * S"

a | s ,. | ^ a a| ft a

o §2

gfi * is

iac E "^

 S

je

o

I?!P£

as^g O -Q ''ii

~*

i i e oj O

sS^^B

«i|8

a^

 2? Is

M i a "a tf « 3 g S-CTSS

4 la 

ofSi

§-» 

At

ed'-i 

t) ^

s|S

e

. ^ 

j-Bjj

I

H W to Ol

00 00 f- fO H GO to 

W W H H

Ol O W * 

O rt

 *O rt O

 *O N H

to to r- GO

inin rt o

o

n n

tot» t» «

H N

o o o o

p} in to o

t» t» 00 O

H

n co

to co o>t»

H H

0> -rt 

- « t»

to n H H

*> > o a 

o o a d 

OS5 O *s

01 o oo t* m

t» 00 t^ t- t»

H t^ c^s oo n 

m i-i noo n

H H H H Cg

n coin to to

o o n f t»

§

a> in t- o * * to oo

« 

«

o

a> in

H

H o N n n

to

H

o no*

m H f t^ H

H

to

H

O O O O O

eg to H t» a> 

t» to in t» co

00 

N

tO rt H

m in co in CM

H H

*C

CO

H

n 

m

O -N 

H CM H «

a h h xa O <d a d 9 faS<Sin
SACRAMENTO RIVER BASIN Continued

11-3795. ELDER CREEK NEAR PASKENTA, CALIF.

LOCATION (revised). Lat 40°01'30", long 122°30'35", at gaging station 2.5 miles downstream from South 

of Paskenta, Tehama County. 

DRAINAGE AREA. 92.9 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Water temperatures: October 1962 to September 1963.

Sediment records: October 1962 to September 1963.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 7, 1965.....

Jan. 6, 1966. .... 

Feb. 9...... .....

Apr. 6... ........

Mean 

discharge

(cfs).

4.5 

5.3 

42 

1020 

146

122 

178 

54 

20 

2.0

Silica 

(SiQ.)

14

14

Iron 

(Fe)

Calcium 

(Ca)

23 

43

Magnesium 

(Mg)

14 

33

Sodium 

(Na)

60 

56 

16 

4.7 

10

10 

5.0 

9.4 

19 

92

Potassium 

(K)

0.6 

1.6

Bicarbonate 

(HCO,)

217 

208 

207 

100 

184

181 

88 

132 

174 

176

Carbonate 

(CO,)

11 

16 

9 

0 

9

6 

0 

2 

12 

8

Sulfate 

(S04 )

9.0 

11

Chloride 

(CD

123 

117 

24 

1.8 

8.3

7.8 

5.2 

11 

30 

207

Fluoride 

(F)

Nitrate 

(NOJ

0,2 

.9

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued 

11-3795. ELDER CREEK NEAR PASKENTA, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle-size analyses, 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 16... ........

Feb. 7............

Apr. 5............

Time 

(24 hour)

1030 

1530 

1045 

1250 

1302 

1205

1106 

1109 

1355 

1207 

1105 

1105 

1110

Water 

temperature 

(°F)

64 

57 

34 

46 

46 

43

42 

42 

49 

53 

59 

64 

59

Sampling 

point

Discharge 

(cfs)

4.5 

190 

27 

1280 

1280 

122

190 

190 

79 

170 

146 

50 

20

Sediment 

concentration 

(ppm)

1 

308 

15 

1720 

1750 

53

44 

48 

11 

38 

24 

5

Sediment 

discharge 

(tons per day)

T 

158 

1.1 

5940 

6050 

17

23 

25 

2.3 

17 

9.5 

.7 

T

Perc

0.002 0.004

29

0.00

T Less than 0.05 ton.
SACRAMENTO RIVER BASIN Continued 

11-3805, ELDER CREEK AT GERBER, CALIF.

LOCATION. Lat 40°03'05", long 122°09'53", at bridge on U.S Highway 99W, 1,200 feet upstream from ga

3.7 miles upstream from mouth. 

DRAINAGE AREA. 136 square miles. 

RECORDS AVAILABLE. Chemical analyses: January 1959 to June 1966 (discontinued).

in

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Dec. 13, 1965.... 

Jan. 17, 1966.. .. 

Feh. 10..........

Mean 

discharge

(eta)

29 

127 

147 

104 

138 

49 

15

Silica 

(S1Q.)

14

Iron 

(Fe)

Calcium 

(Ca)

27

Magnesium 

(Mg)

16

Sodium 

(Na)

16 

8.6 

9.7 

11 

6.6 

9.1 

14

Potassium 

(K)

0.9

Bicarbonate 

(HCOS)

200 

171 

181 

190 

110 

147 

182

Carbonate 

(CO,)

6 

3 

9 

6 

2 

4 

11

Sulfate 

(SO.)

10

Chloride 

(Cl)

26 

7.6 

9.2 

11 

5.3 

14 

24

Fluoride 

(F)

Nitrate 

(NO,)

0.7
SACRAMENTO RIVER BASIN Continued

11-3816.2. MILL CREEK AT MOUTH, NEAR LOS MOLINOS, 

LOCATION. Lat 40°02'34", long 122°05'57", at bridge on U.S. Highway 99, 0.8 mile upstream from confl

gaging station near Los Molinos, Tehama County. 

DRAINAGE AREA. 131 square miles upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. Records of daily discharge data given for Mill Creek near Los Molinos. Considerable divers

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Nov. 3.... .......

Jan. 17, 1966.... 

Feb. 10... .......

May 2 ............

July 6 ...........

Sept . 1 ..........

Mean 

discharge 

(cfs)

112 

104 

140 

184 

200 

200

543 

372 

220 

128 

110 

97

SUlca 

(S1Q.)

25 

38

Iron 

(Fe)

Calcium 

(Ca)

8.6 

18

Magnesium

(MB)

2.8 

10

Sodium 

(Na)

15 

16 

16 

13 

7.5 

12

7.1 

7.8 

10 

15 

17 

17

Potassium 

(K)

1.6 

2.8

Blcarbonate 

(HCOj)

68 

63 

56 

54 

56 

56

29 

32 

37 

80 

88 

94

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04)

18 

21

Chloride 

(CD

16 

18 

22 

16 

14 

10

4.5 

6.2 

9.6 

14 

18 

21

Fluoride

(P)

Ni

tra

(NO

0

1
SACRAMENTO RIVER BASIN Continued 

11-3820. THOMES CREEK AT PASKENTA, CALIF.

LOCATION. Lat 39°52'55", long 122°33'05", at gaging station 0.25 mile upstream from Digger Creek, and 

County.

DRAINAGE AREA. 194 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Water temperatures: October 1961 to September 1966.

Sediment records: October 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 92°F July 22 and sometime during period Aug. 1-5; mi

January.

Sediment concentrations: Maximum daily, 8,460 ppm Jan. 6; minimum daily, 1 ppm on many days.

Sediment loads: Maximum daily, 67,400 tons Jan. 6; minimum daily, less than 0.05 ton on many days. 

EXTREMES, 1961-66. Water temperatures: Maximum, 93°F July 15, 1965; minimum, freezing point on many 

Sediment concentrations (1962-66): Maximum daily, 57,900 ppm Dec. 22, 1964; minimum daily, no flow 

Sediment loads (1962-66): Maximum daily, 5,070,000 tons Dec. 22, 1964; minimum daily, 0 ton Oct. 4, 

REMARKS. Clock stopped Aug. 1-5; temperature range, 65°F to 92°F.

REVISIONS. The following figures were omitted from the suspended-sediment table in the 1965 water yea

mean concentration, 541 ppm; tons per day, s 1330 tons.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Feb. 9.... ......

May 4.. ..........

Sept. 13. ........

Mean 

discharge

(cfs)

7.5 

9.8 

83 

2840 

290 

434

1130 

484 

86 

23 

6.6 

4.7

Silica 

(SIQ.)

8.2 

12

Iron 

(Fe)

Calcium 

(Ca)

19 

48

Magnesium 

(Mg)

3.0 

16

Sodium 

(Na)

13 

16 

8.2 

3.0 

6.8 

5.3

2.6 

3.0 

5.1 

8.5 

11 

13

Potassium 

(K)

0.6 

1.3

Bicarbonate 

(HCOS)

176 

156 

134 

74 

132 

109

61 

66 

112 

149 

140 

109

Carbonate

(ccg

2 

2 

4 

0 

4 

0

0 

0 

2 

6 

3 

2

Sulfate 

(S0<)

11 

92

Chloride 

(Cl)

20 

24 

6.0 

.9 

3.4 

1.4

.8 

.7 

3.0 

9.0 

14 

20

Fluoride 

(F)

Nitrat

(Nc

1.

2.

.2 

.

.3

.

.

1.

1.2
PACIFIC SLOPE BASINS IN CALIFORNIA

I I " 3 I ^ I I II II I 6 II II II II I I " I I

.1 ''' |j 6 111 1 11 >-ll '' II II '' 11 11 

''

11 11^11
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-3820. THOMES CREEK AT PASKENTA, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1 .

2 .

3 .

4 .

5 .

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

7.5

7.5

7.5

7.0

7.0

7.5

7.5

7.5

7.5

7.5

8.2

7.5

7.0

7.5

7.5

8.2

8.2

8.2

9.0

9.0

8.2

8.2

7.5

7.5

7.5

7.5

7.5

8.2

8.2

7.0

6.6

238.2

86

77

97

2000

2*80

2840

1400

870

670

548

458

416

394

399

422

452

422

399

372

340

305

265

265

237

218

196

184

163

223

290

209

17717

Suspended sediment

Mean

tration

(ppm)

5

Tons

per 

day

0.1

.1

2

2

1

1

-

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

T

T

.1

.1

T

T

T

T

T

T

T

T

T

T

2.4

JANUARY

43

36

405

7430

6330

8460

4150

3130

2120

1370

965

780

662

662

660

855

632

520

422

350

315

252

215

187

171

156

135

115

559

215

124

-

10.0

7.5

S 151

K 55000

K 43000

S 67400

15700

7350

3840

2030

1190

876

704

713

752

1040

720

560

424

321

259

194

154

120

101

83

67

51

S 413

168

70

203468.5

NOVEMBER

Mean 

discharge

(cfs)

7.0

8.2

9.0

9.8

11

12

23

97

39

25

15

37

578

1230

1050

237

382

512

325

223

184

148

134

180

160

130

117

107

100

91

6181

345

300

500

800

604

491

382

335

290

260

218

201

175

160

152

138

138

163

265

250

237

241

270

295

285

285

255

260

8295

Suspended sediment

Mean

concentration

(ppm)

1

1

1

1

2

2

51

260

12

11

11

81

1780

2280

1700

270

551

880

410

140

80

58

51

176

70

48

40

35

32

29

-

Tons

per 

day

T

T

T

T

0.1

.1

S 6.6

S 81

1.3

.7

.4

S 17

S 4310

S 8680

S 6780

173

S 800

1220

360

84

40

23

18

S 89

30

17

13

10

8.6

7.1

22770.0

FEBRUARY

234

108

670

409

257

173

127

117

107

97

86

69

65

61

57

62

90

273

140

117

109

153

156

136

120

91

93

-

K 220

87

E 550

1450

667

341

178

115

92

75

57

47

33

28

25

21

23

40

195

95

75

71

112

124

105

92

63

6$

~

--

5046

DECEMBER

Mean 

discharge 

(cfs)

86

83

89

110

130

214

192

171

137

117

110

114

104

89

77

69

64

64

60

55

55

53

44

72

107

72

62

340

232

148

120

3440

260

250

218

227

280

285

388

434

710

1090

790

680

860

980

890

730

604

564

548

505

505

512

548

640

760

910

1070

1190

1280

1310

1350

21368

Suspended sediment

Mean

tration

(ppm)

28

44

72

98

135

252

164

112

68

43

33

32

28

22

17

12

10

10

9

9

9

11

9

39

52

20

15

997

334

98

81

Tons

per 

day

6.5

9.9

17

29

47

146

85

52

25

14

9.8

9.8

7.9

5.3

3*5

2.2

1.7

1.7

1.5

1.3

1.3

1.6

1.1

K 11

S 16

3.9

2.5

S 1510

S 232

39

26

2320.5

MARCH

87

75

72

67

84

102

314

593

2170

3410

1740

1370

2120

1870

1250

920

650

540

450

355

340

330

370

765

1000

1230

1520

2070

2070

2000

2070

61

51

42

41

64

78

A 329

S 709

S 4320

K 10000

3710

2520

A 4920

4950

3000

1810

1060

822

66«

484

464

456

547

1320

2050

3020

4390

6650

A 7150

7070

A 7550

80304

E Estimated.

S Computed by subdividing day.

T Less than 0.05 ton.

A Computed from partly estimatedconcentration graph.

K Computed from estimated-concentration 

graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-3820. THOMES CREEK AT PASKENTA, CALIF.--Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

..

..

 

,.

..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

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..

Total

APRIL

Mean 

discharge

(cf.)

1410

1320

1160

1140

1120

1130

1140

1070

1000

1180

1090

920

720

650

660

660

1050

820

612

526

484

470

477

512

564

556

470

410

362

360

24283

Suspended sediment

Mean 

concentration 

(ppm)

2300

2020

2020

1360

1130

1140

1110

995

845

980

800

695

515

415

460

595

760

605

375

285

215

165

170

210

365

365

165

160

130

115

"

Tons 

per 

day

A 8760

7200

6440

4250

3420

3460

3420

2670

2280

3120

2350

1730

1000

728

620

1380

A 2150

1340

620

405

281

209

219

290

A 566

A 548

235

177

134

112

60554

JULY

30

28

25

24

22

20

20

20

19

20

22

20

23

23

20

20

16

16

16

15

14

14

12

11

10

9.8

10

9.8

9.0

9.6

9.6

540.2

2

1

1

I

1

5

6

6

6

7

10

9

5

4

4

4

4

6

6

6

7

9

8

7

7

7

8

6

5

5

5

0.2

.1

.1

.1

.1

A .3

.3

B .3

B .3

B .4

.6

B .5

.3

.2

.2

.2

.2

.3

.3

.2

A .3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

7.4

MAY

Mean 

discharge

(cf.)

360

372

394

484

491

394

345

340

345

355

355

310

295

280

246

237

209

201

205

223

227

209

160

148

152

160

160

160

137

117

97

6168

Suspended sediment

Mean 

concentration 

(ppm)

105

135

180

206

170

124

116

102

93

95

94

66

62

54

49

54

44

43

41

42

40

40

34

28

25

37

36

45

34

20

17

~

Tons 

Per 

day

102

136

191

269

225

132

A 108

A 94

87

91

90

57

49

41

33

35

25

23

23

25

25

23

15

11

10

16

16

19

13

6.3

4.5

1994.8

AUGUST

9.0

.0

.2

.5

.5

.0

.6

.0

.6

.6

.1

.1

.1

.1

.6

.6

.7

.7

.2

.2

3.3

2.8

2.8

2.5

2.5

2.2

2.0

2.2

2.2

3.7

4.2

158.8

5

4

3

3

3

7

4

2

2

2

2

2

2

2

3

2

2

2

3

3

4

5

3

2

3

4

3

3

2

2

2

~

JUNE

Mean 

discharge

(cfs)

86

83

66

77

76

75

79

86

62

75

70

66

62

60

57

54

52

49

47

44

42

41

41

41

37

33

32

26

30

30

1721

Suspended sediment

Mean 

concentration 

(PPm)

13

11

11

11

9

6

5

5

6

7

6

4

3

2

2

2

2

2

2

2

2

1

3

6

6

4

2

2

2

2

~

Tons 

per 

day

3.0

2.5

2.6

A 2.3

B 1.8

1.2

1.1

1.2

1.3

1.4

A 1.1

A »7

.5

.3

.3

.3

.3

.3

 3

.2

.2

.1

B .3

.7

B .6

B .4

.2

.2

.2

.2

25.8

SEPTEMBER

0. 3.3

. 1 3.7

.

.1

.1

T

T

1.4

3.7

3.3

3.3

2.8

3.7

4.2

4.2

4.2

4.2

4.7

4.7

5.2

6.1

6.6

6.1

7.0

7.5

7.5

7.5

5.6

4.7

4.7

4.7

4.2

4.2

4.2

3.7

4.2

143.7

2

2

2

2

1

1

1

1

1

1

1

1

iii

!

1

1

1

1

!

1

3

2

2

2

2

1

2

2

0.5

Total discharge for year (cfs-days) .................................................... 92253. 9

Total load for year (tons) ............................................................. 377094.3

T Less than 0.05 ton.

A Computed from partly estimated-concentration graph.

Computed from estimated-concentration 

graph.
SACRAMENTO RIVER BASIN Continued 

11-3820. THOMES CREEK AT PASKENTA, CALIF. Continued

Periodic determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decant

P, pipet; S, sieve; V, visual accumulation tube; W, in distilled w

Date of collection

Jan. 5, 1966. .....

Apr. 11...........

Time 

(24 hour)

1240 

1120 

1445 

1520 

1535 

1430

Water 

temperature

CF)

52 

44 

44 

43 

55 

49

Sampling 

point

Discharge 

(cfs)

340 

1030 

2220 

382 

1050 

1020

Sediment 

concentration 

(ppm)

416 

264 

4930 

325 

1080 

630

Sediment 

discharge 

(tons per day)

382 

734 

29550 

335 

3060 

1740

Percent 

0.002 0.004

26

0.008 0

11-3821. THOMES CREEK NEAR MOUTH, NEAR CORNING, C

LOCATION. Lat 39°58'50", long 122°20'10", at U.S. Highway 99W bridge, 2.6 miles upstream from mouth, 

RECORDS AVAILABLE. Chemical analyses: January 1959 to July 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Dec. 13, 1965.. .. 

Jan. 17, 1966. ...

July 6...........

Mean 

discharge

(cfs)

Silica 

(S1Q.)

8.8

Iron 

(Fe)

Calcium 

(Ca)

26

Magnesium 

(Mg)

4.9

Sodium 

(Na)

8.1 

4.9 

7.2 

7.2

3.1 

3.5 

5.0 

7.7

Potassium 

(K)

0.9

Bicarbonate 

(HCO,)

144 

113 

158 

133

71 

90 

139 

197

Carbonate 

(COJ

4 

0 

0 

3

0 

0 

3 

4

Sulfate 

(SO.)

16

Chloride 

(Cl)

6.0 

2.1 

3.5 

3.5

.5

1.5 

2.7 

5.0

Fluoride 

(F)

Ni

trat

(NO

0
SACRAMENTO RIVER BASIN Continued

11-3838. SACRAMENTO RIVER NEAR HAMILTON CITY, C

LOCATION. Lat 39°45'06", long 121°59'40", at gaging station on State Highway 32 bridge, 1.3 miles no

upstream from Pine Creek.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. Records of discharge furnished by California State Department of Water Resources.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

sept. 14.. .......

Mean 

discharge

(cfs)

7690 

7720 

8180 

70600 

16200 

8810

8690 

S870 

8540 

10800 

10500 

6910

Silica 

(SIQ.)

19 

20

Iron 

(Fe)

Calcium 

(Ca)

12 

9.7

Magnesium 

(Mg)

5.1 

5.5

Sodium 

(Na)

6.4 

6.7 

6.8 

3.6 

6.5 

8.0

6.6 

6.5 

6.6 

6.2 

5.9 

6.1

Potassium 

(K)

1.0 

1.0

Bicarbonate 

(HCO,)

64 

66 

69 

45 

63 

74

69 

67 

64 

63 

63 

65

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO.)

7.0 

5.0

Chloride 

(Cl)

2.5 

2.8 

4.0 

1.5 

3.0 

3.3

3.2 

2.0 

2.4 

2.1 

2.0 

1.8

Fluorlde 

(F)

Ni

trat

(NO

0.

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued

11-3840. BIG CHICO CREEK NEAR CHICO, CALIF.

LOCATION. Lat 39°46'35", long 121°45'10", at gaging station 1.8 miles upstream from golf clubhouse i

7 miles northeast of Chico, Butte County. 

DRAINAGE AREA. 72.2 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 6, 1965. ....

Nov. 4. ..........

Jan. 6, 1966.....

Fsb. 8......... ..

Sept. 14.........

Mean 

discharge 

(cfs)

26 

28 

60 

960 

243 

125

96 

45 

31 

24 

19 

22

Silica 

(S1Q.)

33 

35

Iron 

(Fe)

Calcium

(Ca)

14 

16

Magnesium 

(Mg)

6.3 

8.8

Sodium 

(Na)

13 

14 

8.2 

3.3 

4.9 

6.4

6.7 

9.7 

14 

15 

17 

16

Potassium 

(K)

0.9 

1.0

Blcarbonate 

(HCOJ

104 

110 

74 

33 

47 

61

66 

84 

97 

104 

112 

111

Carbonate 

(CO,)

2 

0 

0 

2 

0 

0

0 

0 

1 

3 

0 

0

Sulfate 

(SO,)

5.0 

6.0

Chloride 

(Cl)

9.7 

8.6 

5.6 

1.1 

1.5 

2.3

3.3 

6.0 

9.1 

10 

12 

14

Fluorlde

(P)

Ni

trat

(NO

0.

1.
SACRAMENTO RIVER BASIN Continued

11-3842. BIG CHICO CREEK AT CHICO, CALIF.

LOCATION. Lat 39°43'38", long 121°51'44", at gaging station at intersection of Bidwell Way and Rose Av

RECORDS AVAILABLE. Chemical analyses: January 1959 to June 1966 (discontinued).

REMARKS. Records of discharge furnished by California State Department of Water Resources.

Chemical analyses, in parts per million, October 1965 t

Date 

of 

collection

Oct. 6, 1965.....

Jan. 5, 1966.....

Mar . 8 ...........

June 9 ...........

Mean 

discharge

(cfs)

26 

28 

60 

1970

243 

125 

96 

45 

31

Silica 

(S1Q.)

32

Iron 

(Fe)

Calcium 

(Ca)

14

Magnesium 

(Mg)

6.6

Sodium 

(Na)

13 

14 

8.2 

2.7

4.9 

6.4 

6.8 

9.7 

13

Potassium 

(K)

0.9

Bicarbonate 

(HCO,)

106 

108 

74 

32

47 

6 

65 

84 

99

Carbonate 

(CO,)

2

1 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

5.0

Chloride 

(Cl)

10 

9.5 

5.6 

1.1

1.6 

2.9 

3.6 

6.4 

9.0

Fluoride 

(F)

Nitrats 

(NOJ

0.9
SACRAMENTO RIVER BASIN Continued

11-3870. STONY CREEK NEAR FRUTO, CALIF.

LOCATION. Lat 39°40'16", long 122 t> 31'08", at gaging station 0.3 mile downstream from Grindstone Cree

DRAINAGE AREA (revised).--598 square miles.

RECORDS AVAILABLE. Chemical analyses: March 1964 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 1, 1965.....

Dec . 1 ...........

Feb. 1...........

May 2

Mean 

discharge

(cfs)

308 

123 

65 

178 

577 

500

1010 

435 

388 

217 

388 

288

Silica 

(S1Q.)

8.8 

10

Iron 

(Fe)

Calcium 

(Ca)

27 

27

Magnesium 

(Mg)

5.2 

17

Sodium 

(Na)

13 

20 

26 

23 

20 

15

5.7 

7.4 

11 

13 

13 

14

Potassium 

(K)

1.0 

1.0

Bicarbonate

(Hccg

177 

214 

160 

150 

116 

131

82 

98 

123 

144 

156 

169

Carbonate

(ccg

7 

4 

5 

3 

0 

1

0 

0 

4 

4 

4 

2

Sulfate 

(SO.)

15 

12

Chloride 

(Cl)

13 

22 

38 

36 

24 

12

4.4 

4.5 

12 

12 

12 

14

Fluoride 

(F)

Ni

trat

(NO

1.

2.

.

.

1.

.

.

.

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued 

11-3880. STONY CREEK BELOW BLACK BUTTE DAM, NEAR ORL

LOCATION. Lat 39°49'00", long 122°19'25", at gaging station on left bank 200 feet downstream from r

8.1 miles northwest of Orland, Glenn County. 

DRAINAGE AREA. 741 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1957 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Mar. 8...........

Sept. 13.........

Mean 

discharge

(cfs)

124 

59 

2680 

1170 

24

141 

155 

543 

436 

391 

115

Silica 

(S1Q,)

7.8 

9.4

Iron 

(Fe)

Calcium 

(Ca)

30 

31

Magnesium 

(Mg)

ll 

15

Sodium 

(Na)

13

14 

10 

13 

15

14 

13 

12 

14 

14 

15

Potassium 

(K)

0.9 

1.2

Bicarbonate 

(HCO,)

172 

187 

108 

124 

134

134 

133 

130 

142 

162 

173

Carbonate

(ccg

6 

5 

0 

0 

2

3 

0 

4 

5 

0 

0

Sulfate 

(SO,)

18 

12

Chloride 

(Cl)

12 

14 

13 

17 

15

16 

13 

12 

14 

14 

14

Fluoride 

(F)

N

tra

(NO

1

2

1

1

1

1

A Calculated from determined constituents.
SACRAMENTO RIVER BASIK Continued 

11-3890. SACRAMENTO RIVER AT BUTTE CITY, CALIF

LOCATIOK (revised). Lat 39°27'35", long 121°59'35", at gaging station 100 feet upstream from highway 

mile 115.8 upstream from Sacramento. 

DRAIKAGE AREA. 12,096 square miles.

RECORDS AVAILABLE. Chemical analyses: May 1955 to September 1966 (discontinued). 

Water temperatures: May 1955 to September 1958, October 1959 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 66°F June 15, 16; minimum, 44°F Jan. 20-23. 

EXTREMES, 1955-58, 1959-66. Water temperatures: Maximum, 75°F June 2, 3, 5, 7, 1960; minimum (1955-5

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Feb. 8...........

July 13..........

Sept. 14.........

Mean 

discharge 

(cfs)

8240 

8020 

9340 

42000 

24000 

10100

8240 

8460 

8900 

11500 

10300 

6960

Silica 

(S1Q.)

20 

19

Iron 

(Fe)

Calcium 

(Ca)

12 

10

Magnesium 

(Mg)

5.8 

6.0

Sodium 

(Na)

6.2 

6.5 

7.1 

7.0 

7.2 

8.1

7.1 

6.5 

6.7 

6.1 

6.3 

6.2

Potassium 

(K)

0.9 

1.0

Blcarbonate 

(HCO,)

67 

66 

70 

52 

70 

79

73 

70 

69 

62 

64 

68

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Suifate 

(S0«)

8.0 

6.0

Chloride 

(Cl)

2.2 

2.0 

4.2 

2.2 

4.2 

3.1

3.2 

2.8 

2.5 

2.0 

2.1 

2.4

Fluorlde 

(F)

Nitrate 

(NO,)

0.6 

1.4
SACRAMENTO RIVER BASIN Continued

11-3890. SACRAMENTO RIVER AT BUTTE CITY, CALIF. Co

Temperature (°F) of water, water year October 1965 to S

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum .... 

Minimum ....

January 

Maximum ....

Minimum .... 

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

59

57

55

54

50 

50

46

45

4*

45

50

+ 9

58

56

60

57

62

59

62

59

63

59

60

58

2

59

57

54

54

50 

50

45

45

45

45

50

48

58

5«

60

58

60

57

61

58

63

61

61

59

3

60

58

54

54

50 

50

45

45

45

45

48

47

58

55

60

58

59

56

61

58

64

61

62

60

4

59

58

54

54

50

50

46

45

46

45

48

47

58

56

60

58

59

56

62

59

63

61

63

61

5

59

58

55

54

50 

50

46

45

46

46

47

47

58

56

60

58

59

57

62

59

63

61

63

61

6

59

58

55

55

50 

50

46

45

47

46

48

47

58

56

60

58

59

57

62

60

63

61

63

61

7

60

58

55

54

50 

50

46

47

46

49

48

58

56

60

57

58

55

62

60

62

60

63

61

8

60

58

54

54

50 

50

47

46

45

50

49

58

57

60

58

59

56

61

60

62

60

62

60

9

60

59

54

54

50 

50

46

46

50

50

57

56

59

57

61

58

61

59

62

60

62

60

10

59

58

54

54

50 

49

47

46

50

50

56

54

58

56

62

59

60

58

62

60

62

60

11

59

58

54

54

49 

49

47

47

50

50

54

52

59

56

62

59

61

59

62

60

62

60

12

58

57

54

54

50 

49

47

46

50

50

54

53

60

58

63

59

60

59

63

60

61

59

13

58

56

54

54

50 

49

47

45

51

50

55

53

60

58

64

60

60

58

63

60

61

59

14

59

58

54

54

49 

48

46

46

52

51

57

54

60

58

65

61

60

58

63

60

60

58

15

58

56

54

54

48 

47

46

46

52

52

59

55

60

57

66

63

59

58

63

60

60

58

Day

16

57

54

54

54

47

47

46

52

50

60

57

60

57

66

63

60

58

62

60

61

59

17

55

54

54

54

47

47

47

50

48

60

58

60

57

65

62

60

58

61

59

61

60

18

56

55

54

54

47

48

47

48

47

60

57

61

57

64

61

60

58

61

59

61

61

19

56

55

54

54

47

48

47

49

47

57

55

62

58

64

61

60

58

61

59

62

60

20

55

55

54

54

47

48

48

50

48

55

53

64

61

63

61

60

58

61

59

62

61

2
SACRAMENTO RIVER BASIN Continued 

11-3895. SACRAMENTO RIVER AT COLUSA, CALIF.

LOCATION. lit 39°12'51", long 121°59'57", at gaging station at north end of Jimeno Grant, downstream 

mile 89.4 upstream from Sacramento. 

DRAINAGE A IEA. 12,110 square miles. 

RECORDS A^AILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Sept. 14.. .......

Mean 

discharge

(cfs)

8050 

8220 

10700 

24600 

27500 

9860

8820 

7920 

8260 

10600 

9980 

7230

Silica 

(SiQ.)

19 

20

Iron 

(Fe)

Calcium 

(Ca)

12

11

Magnesium 

(Mg)

5.8 

6.0

Sodium 

(Na)

6.0 

6.6 

7.3 

7.3 

7.1 

8.4

7.1 

7.1 

6.9 

6.5 

6.2 

6.5

Potassium 

(K)

1.3

1.1

Bicarbonate 

(HCOj)

66 

67 

71 

69 

66 

81

74 

71 

70 

64 

66 

69

Carbonate 

(COj)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

7.0 

7.0

Chloride 

(Cl)

2.3 

2.7 

4.1 

3.0 

5.1 

3.3

4.0 

2.3 

2.8 

2.3 

2.1 

2.8

Fluoride 

(F)

Nitrat

(Nc

0.7 

1.0
SACRAMENTO RIVER BASIN Continued

11-390C. BUTTE CREEK NEAR CHICO, CALIF.

LOCATION. Lat 39°43'34", long 121°42'28", at gaging station 0.7 mile downstream from Little Butte Cre

DRAINAGE AREA.--147 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: November 1961 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 75°F Aug. 3-5; minimum, 36°F sometime during period 

EXTREMES, 1961-66. Water temperatures: Maximum (1961-64, 1965-66), 75°F Aug. 3-5; 1966; minimum, 

REMARKS. Clock stopped Nov. 13-17, Dec. 6 to Jan. 4, and Jan. 10-17; temperatur .ges, 50°F to 51°F

Chemical alyse million iter year October 1965 

Date 

of 

collection

Oct. 6, 1965.....

Sept. 14.........

Mean 

discharge

(cfs)

141 

98 

222 

2320 

478 

391

641 

464 

233 

136 

98 

116

Silica 

(SiQ.)

17 

20

Iron

(Fe)

Calcium 

(Ca)

7.6 

12

Magnesium 

(Mg)

2.2 

4.7

Sodium 

(Na)

3.6 

5.0 

3.5 

2.4 

4.1 

3.2

2.3 

2.5 

3.7 

3.4 

4.0 

3.5

Potassium 

(K)

0.6 

.9

Bicarbonate 

(HCO,)

68 

74 

60 

38 

50 

50

33 

37 

51 

63 

65 

67

Carbonate

(ccg

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Suifate 

(S04 )

1.0 

.0

Chloride 

(CD

0.4 

.5 

.8

.7 

.7 

.4

.5

.4 

.4 

.6 

.4 

.6

Fluoride 

(F)

Nitrate 

(NO,)

0.7 

.6

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued

11-3900. BUTTE CREEK NEAR CHICO, CALIF. Conti

Temperature (°F) of water, water year October 1965 to S

Month

October

Maximum ....

Minimum ....

November

Maximum .... 

Minimum ....

December 

Maximum ....

Minimum ....

January 

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum .... 

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

59

54

52

48

42

39

"

49

47

56

51

59

54

69

61

72

64

65

58

2

59

55

53

50

41

40

48

47

56

51

58

53

68

61

74

64

66

59

3

58

54

53

50

42

40

~

47

45

56

50

58

52

70

61

75

68

66

59

4

58

54

54

51

43

44

42

50

46

59

55

59

52

70

62

75

68

66

60

5

59

55

55

52

44

43

46

46

45

44

51

49

59

56

58

54

70

63

75

69

67

61

6

60

56

53

50

46 

46

45

42

"

51

49

58

54

56

55

70

63

74

67

67

61

61

56

52

50

44

43

41

52

50

58

54

59

55

68

63

74

67

66

61

8

61

57

53

50

45 

45

42

40

~

51

50

59

55

60

55

70

63

73

67

66

60

9

61

57

52

50

45 

43

42

40

~

50

49

58

56

63

57

70

63

72

67

65

60

10

61

57

51

48

42

40

--

49

47

56

55

64

58

70

63

74

67

64

59

11

60

56

51

49

41

39

49

47

59

54

63

58

69

63

73

66

64

59

12

59

55

51

50

42

39

46 

44

50

48

59

55

64

59

69

63

73

66

60

57

13

58

54

40

37

48

46

50

47

59

54

66

60

69

63

73

66

61

57

14

56

55

41

38

48 

46

51

49

59

55

66

60

71

65

73

66

61

55

15

55

52

40

37

46 

45

53

50

59

54

66

60

73

66

72

66

61

55

Day

16

52

48

40

36

45 

43

54

51

59

54

68

60

73

67

72

66

62

56

17

52

48

~

41

37

43 

41

55

52

60

55

69

61

73

68

72

66

63

57

18

52

48

54

51

41

39

42

38

45

42

52

49

61

55

70

62

73

67

73

67

63

59

19

54

50

52

51

40

39

42

40

47

44

50

47

62

57

70

63

73

66

73

66

63

59

20

54

50

52

50

39

37

42

39

46 

42

50

46

63

58

67

64

74

67

72

66

64

58
SACRAMENTO RIVER BASIN Continued 

11-3906.5. SACRAMENTO RIVER ABOVE COLUSA TROUGH, AT KNIGHTS L

LOCATION. Lat 38°48'18", long 121°43'22", approximately 200 yards upstream from State Highway 24 bridg

0.3 mile upstream from gaging station.

RECORDS AVAILABLE. Chemical analyses: July 1960 to September 1966. 

REMARKS. Records of daily discharge data given for Sacramento River at Knights Landing. Considerable 

Chemical analyses, In parts per million, water year October 1965 

Date 

of 

collection

Oct. 6, 1965.....

Jan. 5, 1966.... .

Feb. 8. ..........

Mar. 9. ..........

Aug. 11.. ........

Sept. 14.........

Mean 

discharge

(eta)

8750 

8770 

13400 

18400 

25500 

9990

9530 

7070 

8110 

9530 

9920 

8810

Silica 

(SIQ.)

20 

20

Iron 

(Fe)

Calcium 

(Ca)

14 

13

Magnesium 

(Mg)

7.5 

8.0

Sodium

(Na)

6.7 

6.1 

6.0 

8.0 

8.8 

8.6

6.8 

13 

12 

8.1 

8.4 

10

Potassium 

(K)

1.1 

1.1

Bicarbonate 

(HCO,)

71 

67 

62 

73 

72 

83

74 

84 

82 

69 

72 

85

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

17 

9.0

Chloride

(ci)

2.9 

2.4 

2.9 

3.7 

6.2 

3.6

3.6 

6.5 

6.0 

3.1 

3.2 

4.2

Fluoride 

(F)

Nitrate 

(NO,)

0.9 

.7

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued

11-3907. COLUSA TROUGH NEAR COLUSA, CALIF.

LOCATION.--Lat 39°11'45", long 122°03'34", at gaging station 3 miles west of Colusa, Colusa County, o

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

REMARKS. Records of discharge furnished by California State Department of Water Resources. This wat

Barrow Pit and entering the Sacramento River just upstream from Knights Landing gaging station.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

May 5............

June 8 ...........

Sept. 14.........

Mean 

discharge 

(eta)

253 

217 

192 

1370 

1090 

A 172

A 259 

1120 

783 

540 

708 

668

Silica 

(Si02)

21 

20 

19 

12 

15 

15

16 

13 

14 

15 

18 

18

Iron 

(Fe)

Calcium 

(Ca)

30 

29 

46 

28 

32 

62

30 

24 

22 

32 

30 

32

Magnesium 

(Mg)

23 

23 

38 

14 

23 

56

21 

17 

21 

23 

24 

22

Sodium

(Na)

60 

66 

136 

78 

87 

210

88 

56 

62 

64 

60 

57

Potassium 

(K)

2.0 

2.3 

2.8 

3.2 

3.7 

1.8

3.0 

2.5 

1.0 

.9 

1.2 

1.6

Bicarbonate 

(HCO,)

198 

218 

302 

137 

202 

356

208 

168 

196 

240 

236 

232

Carbonate 

(CO,)

7 

0 

10 

0 

0 

10

0 

0 

0 

0 

4 

0

Sulfate 

(SO.)

70 

80 

177 

102 

125 

320

111 

73 

73 

75 

56 

64

Chloride 

(Cl)

30 

35 

73 

49 

48 

130

40 

22 

27 

38 

26 

30

Fluoride

(F)

0.4

Nitrat

(NO

1.

1.3 

3.3 

5.

4.4 

1.

2.2 

2.

1.5 

1.

1.

2.

A Estimated.

B Calculated from determined constituents.
SACRAMENTO RIVER BASIN Contin

11-3911. SACRAMENTO SLOUGH NEAR KNIGHTS LANDING, 

LOCATION. Lat 38°50'05", long 121°45'10", at Bureau of Reclamation gaging station on levee near Rec

mouth, and 5.4 miles southeast of Knights Landing, Yolo County.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

REMARKS. This water is entire outflow of the Sutter Bypass area and the Reclamation District 1500.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 6, 1965. ....

Apr. 7, 1966. ....

Sept. 14. ........

Estimated 

discharge 

(cfs)

567 

851 

1700 

967

1080 

1050 

692 

868

Silica

(sicg

23 

31

Iron 

(Fe)

Calcium 

(Ca)

29 

50

Magnesium 

(Mg)

20 

39

Sodium

(Na)

38 

20 

10 

34

38 

50 

45 

90

Potassium 

(K)

1.6 

1.3

Blcarbonate 

(HCO,)

216 

170 

106 

182

204 

246 

256 

320

Carbonate

(ccg

6 

3 

0 

0

4 

6 

0 

0

Sulfate 

(S04 )

20 

29

Chloride 

(CD

48 

14 

7.2 

36

42 

63 

48 

131

Fluorlde 

(F)

Ni

tra

(NO

0

3

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued

11-3915. BIG GRIZZLY CREEK NEAR PORTOLA, C

LOCATION. Lat 39°52'00", long 120°27'20", temperature recorder at gaging station, o

tary, 4.3 miles upstream from mouth, and 4.5 miles north of Portola, Plumas Coun

DRAINAGE AREA. 45.5 square miles.

RECORDS AVAILABLE. Water temperatures: October 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 78°F Aug. 1, 3; minimum, freezing 

EXTREMES, 1962-66. Water temperatures: Maximum, 78°F July 12-14, 1963, Aug. 1, 3, 

during winter months.

Temperature (°F) of water, water year October 1965 t

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum .... 

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

58

44

46

37

33

33

33

33

33

33

32

32

37

32

59

46

65

4»

69 

50

78

59

68

50

2

57

45

48

40

33

33

33

33

33

33

32

32

42

32

60

46

63

47

68 

52

70

60

68

49

3

55

43

46

38

33

33

33

33

33

33

32

32

45

33

58

50

65

47

70 

50

78

58

68

50

4

54

43

49

40

33

33

33

33

33

33

33

32

48

34

58

50

67

47

73 

51

77

58

70

52

5

59

46

46

38

33

33

33

33

33

33

33

33

50

36

58

52

63

47

73 

51

76

56

66

53

6

59

46

45

37

33

33

33

32

33

33

34

33

51

37

59

47

58

55

73 

51

76

56

68

54

7

58

45

42

37

33

33

32

32

33

33

34

33

51

39

62

48

57

53

71 

51

74

55

68

53

8

58

45

44

41

33

33

32

32

33

33

33

32

50

40

62

52

62

50

71 

54

74

56

66

49

9

58

45

42

38

33

33

32

32

33

32

34

32

47

41

56

48

69

54

71 

57

75

55

66

49

10

58

45

42

37

33

33

32

32

32

32

34

32

44

36

59

48

71

52

71 

53

74

56

66

48

11

57

44

44

40

33

33

32

32

32

32

34

32

46

36

59

50

70

52

71 

52

73

56

66

50

12

55

43

44

42

33

33

32

32

32

32

35

32

46

40

60

49

71

52

71 

52

74

57

63

48

13

55

44

44

43

33

33

32

32

32

32

34

32

49

40

62

50

73

54

70 

49

75

57

59

48

14

51

45

43

42

33

33

32

32

32

32

34

32

51

44

60

50

73

56

70 

49

72

56

62

46

15

49

43

43

41

33

33

32

32

32

32

33

32

53

46

62

48

68

56

70 

48

73

57

64

47

16

48

39

43

41

33

33

32

32

32

32

33

32

54

48

63

48

73

55

71 

50

73

57

66

49

17

46

38

42

41

33

33

32

32

32

32

33

32

53

49

64

47

73

54

73 

51

75

58

64

49

18

47

40

42

34

33

33

33

32

32

32

35

33

50

41

66

48

73

54

51

76

58

57

54

19

37

34

33

33

33

33

32

32

34

32

46

40

68

48

74

56

54

74

57

63

52

20

38

36

33

33

33

33

32

32

34

32

49

40

70

50

69

57

54

72

54

68

54
SACRAMENTO RIVER BASIN Continued 

11-3915. BIG GRIZZLY CREEK NEAR PORTOLA, CALIF. Contin

Periodic determinations of su

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Feb. 10. ..........

Apr. 11. ..........

Sept. 8. ..........

Time 

(24 hour)

1515 

1320 

0830 

1020

1600 

1300 

1620 

1630

Water 

temperature 

(°F)

57 

37 

33 

33 

32

45 

50 

73 

66

Sampling 

point

Discharge 

(cfs)

1.8 

14 

7.6 

2.5 

7.0

148 

62 

2.3 

.3

Sediment 

concentration 

(ppm)

2

21 

7 

13 

14

33 

64 

5 

124

Sediment 

discharge 

(tons per day)

T 

.8 

.1 

.1 

.3

13 

11 

T 

.1

Perce

0.002 0.004 0.00

T Less than 0.05 ton.
SACRAMENTO RIVER BASIN Continued

11-3925. MIDDLE FORK FEATHER RIVER NEAR CLIO, 

LOCATION. Lat 39°45'10", long 120°35'40", temperature recorder at gaging station, 0

northwest of Clio, Plumas County, and 2.2 miles southeast of Blairsden. 

DRAINAGE ARKA. 686 square miles.

RECORDS AVAILABLE. Water temperatures: October 1963 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F Aug. 3; minimum, 33°F sometim

EXTREMES, 1963-66. Water temperatures: Maximum, 79°P Aug. 3, 1966; minimum, freez

REMARKS. Clock stopped Nov. 22-29; temperature range, 33°F to 40°F.

Temperature (°F) of water, water year October 1965 to 

Month

October

Minimum ....

November

December

Maximum ....

Minimum ....

January

Maximum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July 

Maximum ....

Minimum ....

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

i

58

*9

*8

44

34

34

35

35

36

36

36

35

47

41

57

47

64

53

58

65

64

53

2

58

50

43

34

34

35 

35

36

36

36

35

47

41

58

47

63

53

61

67

65

53

3

56

49

43

35

34

35 

35

36

35

35

35

48

43

56

49

63

52

57

67

67

55

4

56

49

43

35

34

35

35

37

36

35

35

49

44

58

51

66

53

59

63

67

55

5

59

51

43

35

34

35

35

37

36

37

35

51

44

61

52

63

55

59

62

67

57

6

59

51

41

34

34

36 

35

36

36

39

37

51

45

60

49

62

58

59

63

66

58

7

58

50

41

34

34

35 

35

36

35

39

37

53

47

58

49

60

56

58

61

67

57

8

57

50

44

34

34

36

35

35

35

38

38

50

47

59

51

66

56

61

63

63

54

9

57

50

41

35

34

36

35

35

34

38

38

49

46

57

51

70

58

64

62

62

52

10

57

50

42

35

34

36

35

35

34

38

37

47

45

60

52

70

58

59

62

62

53

1 1

57

49

43

34

34

36

35

35

34

37

37

47

43

58

5Z

71

58

59

62

60

52

12

56

49

43

35

34

35

35

35

34

38

37

49

44

59

50

73

59

59

62

58

50

13

56

49

45

35

34

36

35

34

34

39

38

50

44

60

51

76

59

57

60

55

50

14

56

49

44

34

34

36

35

34

34

42

39

52

45

60

53

74

63

59

60

55

48

15

55

49

43

34

34

36

36

35

34

41

40

53

47

61

52

69

60

58

60

58

50

Day

16

51

45

44

34

34

36

35

34

34

40

39

55

49

61

52

73

60

59

62

59

50

17

50

45

44

35

34

35

34

35

34

39

37

55

51

62

51

73

59

60

63

60

50

18

50

46

39

35

35

34

34

36

34

42

39

52

49

63

53

73

59

60

63

59

56

19

52

47

39

15

35

34

34

35

34

45

40

50

45

65

53

73

60

62

61

59

55

20

51

45

40

35

35

34

34

36

35

44

40

50

45

65

54

72

62

62

58

62

55
SACRAMENTO RIVER BASIN Continued 

11-3945. MIDDLE FORK FEATHER RIVER NEAR MERRIMAC, 

LOCATION. Lat 39°42'30", long 121°16'10", at gaging station 400 feet downstream from bridge on Mils

miles southeast of Merrimac, Butte County, and 20 miles northeast of Oroville. 

DRAINAGE AREA. 1,062 square miles. 

RECORDS AVAILABLE. Chemical analyses: July 1963 to June 1966 (discontinued).

Water temperatures: October 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 75°F Aug. 3; minimum, 33°F Jan. 26, 27.

EXTREMES, 1962-66. Water temperatures: Maximum (1964-66), 75°F Aug. 3, 1966; minimum (1962-64, 196

REMARKS. Clock stopped Sept. 25-30; temperature range, 48°F to 61°F.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Jan. 14, 1966. . . .

June 2 ...........

Mean 

discharge

(cfs)

215 

256 

427 

597

608 

2680 

2520 

678

Silica 

(S102)

11

Iron

(Fe)

Calcium

(Ca)

8.4

Magnesium 

(Mg)

1.7

Sodium

(Na)

7.4 

6.7 

5.6 

3.8

5.3 

3.3 

2.9 

3.5

Potassium

(K)

0.7

Blcarbonate 

(HCO,)

82 

71 

62 

46

65 

42 

36 

51

Carbonate 

(CO,)

1 

0 

0 

0

0 

0 

0 

0

Sulfate 

(SO.)

3.0

Chloride

(ci)

2.3 

1.6 

2.1 

.9

1.7 

.5 

.8 

.6

Fluorlde

(F)

Ni

tra

(NO

0
SACRAMENTO RIVER BASIN Continued

11-3945. MIDDLE FORK FEATHER RIVER NEAR MERRIMAC, CA

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November 

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum .... 

Minimum ....

April

Maximum .... 

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Minimum ....

1

56

55

48

47

. 

37

36

40

39

50

47

50

48

56

54

67

65

72

67

64 

61

2

57

55

47

46

39

38

37

36

__

39

37

50

48

50

48

55

53

67

64

73

69

65 

61

3

57

55

47

46

40

39

36

35

37

37

37

36

50

47

50

48

56

53

66

63

75

70

65 

62

4

57

55

48

40

39

39

36

38

37

37

36

50

48

51

49

57

55

67

63

74

70

66

63

5

56

55

49

40

40

40

39

39

38

39

37

51

49

51

50

57

56

68

64

74

69

67 

64

6

57

55

48

40

40

40

39

40

39

43

39

51

49

51

49

57

57

68

64

74

69

67 

64

7

58

57

47

40

39

40

39

40

39

45

43

51

50

52

49

57

56

68

64

73

69

67 

65

8

58

57

48

39

38

40

39

39

38

45

45

51

50

52

50

58

56

67

64

73

69

67 

64

9

59

57

48

39

38

40

39

38

37

45

43

50

52

50

61

57

67

65

73

69

66 

63

10

57

56

48

39

38

39

39

39

37

43

42

48

52

50

62

59

68

64

72

68

65 

63

11

57

56

47

40

39

39

39

37

36

42

40

47

53

52

62

60

68

64

71

68

64 

62

12

57

55

47

41

40

39

38

38

36

42

40

47

52

51

62

59

67

64

71

68

62

60

13

56

55

48

41

39

39

38

36

35

43

42

49

52

51

63

60

67

64

71

68

60 

59

14

56

55

47

39

36

39

38

36

35

44

43

50

53

52

65

62

67

63

71

68

59

57

15

55

53

48

36

35

39

38

36

35

45

50

53

51

67

64

67

63

71

68

64

57

Day

16

53

51

48

47

35

34

39

38

36

35

44

51

50

53

51

67

65

67

63

71

68

63 

60

17

51

50

48

47

34

34

38

37

37

36

42

51 

50

54

52

67

65

68

64

72

68

62

60

18

51

50

34

34

37

36

38

37

44

50

48

56

54

67

65

69

64

72

69

62

60

19

52

50

35

34

37

36

39

38

45

48

45

57

55

67

65

70

65

72

69

62

59

20

52

51

35

34

36

35

40

38

45

47

45

58

56

66

64

70

67

70

67

63 

60
SACRAMENTO RIVER BASIN Continued

11-3963.5. SOUTH FORK FEATHER RIVER BELOW PONDEROSA 

LOCATION. Lat 39°33'05", long 121°18'30", at gaging station 1,000 feet upstream from Sucker Run, 1,

2.8 miles northwest of Forbestown. 

DRAINAGE AREA. 108 square miles. 

RECORDS AVAILABLE. Chemical analyses: July 1963 to June 1966 (discontinued).

Water temperatures: October 1962 to September 1966. 

EXTREMES, 1963-65. Water temperatures: Maximum, 87°F July 5, 16, 1965; minimum, 36°F Jan. 1, 2, 19

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Dec. 7...........

Jan. 14, 1966. .. . 

Feb. 4.. .........

June 2 ...........

Mean 

discharge 

(eta)

140 

.3 

175 

121

.3 

.3 

304 

363 

.3

Silica 

(S102)

12

Iron 

(Fe)

Calcium 

(Ca)

5.0

Magnesium 

(Mg)

0.6

Sodium

(Na)

3.5 

2.6 

2.0 

2.0

2.6 

3.2 

2.0 

1.8 

2.3

Potassium 

(K)

0.4

Blcarbonate 

(HCOJ

20 

28 

22 

27

27 

34 

24 

20 

23

Carbonate

(ccg

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

1.0

Chloride

(ci)

0.9 

.9 

.5 

.5

.7 

1.2 

.4 

.6 

.5

Fluorlde 

(F)

N

tra

(N

0
SACRAMENTO RIVER BASIN Continued

11-3963.5. SOUTH FORK FEATHER RIVER BELOW PONDEROSA DAM, 

Temperature (°F) of water, water year October 1965 to 

October

November

December 

Maximum .... 

Minimum .... 

January

February

March

April 

Maximum .... 

Minimum .... 

May

June

July

August

September

1

54 

48

2

53 

49

3

53 

48

4

52 

48

5

54 

48

6

53 

48

49 

42

7

52 

48

45 

40

8

51 

47

45 

39

9

49 

48

44 

40

10

52 

47

43 

40

1 1

50 

48

43 

39

12

50 

48

44 

38

13

54

50 

45

45 

37

14

50 

44

46 

38

15

49 

44

48 

39

Day

16

49 

43

48 

40

17

48 

42

47 

42

18

54

48 

42

44

39

19

48 

42

45 

38

20

48 

41

46 

38
SACRAMENTO RIVER BASIN Continued 

11-4011.8. LITTLE GRIZZLY CREEK NEAR GENESEE

LOCATION. Lat 40°00'55", long 120°45'10", temperature recorder at gaging station o

Creek, and 2 miles south of Genesee, Plumas County. 

DRAINAGE AREA. 29.6 square miles.

RECORDS AVAILABLE. Water temperatures: August 1964 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 67°F Aug. 2, 3; minimum, 33°F on 

EXTREMES, 1964-66. Water temperatures: Maximum, 67°F Aug. 2, 3, 1966; minimum, 33

Temperature (°F) of water, water year October 1965 t

Month

October

November"1 

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April 

Maximum ....

May

Maximum .... 

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Minimum " ".

Day

1

48

44

39

36

35

34

34

36

35

37

35

41

38

49

41

59

54

53

49

65

60

55

51

2

48

44

41

36

35

34

34

35

33

35

34

42

38

50

41

59

52

54

49

67

61

56

50

3

41

37

35

35

34

36

35

34

33

42

37

49

43

60

53

54

47

67

61

57

51

4

42

38

36

36

35

37

36

35

33

42

37

49

44

61

54

55

48

66

60

53

5

41

38

37

37

36

37

36

38

35

43

38

50

61

54

55

48

65

59

59 

53

6

40

37

36

38

37

36

35

39

37

43

38

49

60

54

55

50

65

59

59

55

7

40

36

36

38

38

35

34

39

38

44

38

51

62

56

54

53

65

59

54

8

43

9

41

37 j 38

36 i 36

38

38

35

34

40

38

44

38

52

62

58

54

52

65

59

54

51

38

38

36

35

40

38

43 

39

49

61

55

56

51

65

59

54

50

10

39

38

37

38

37

35

34

40

38

42

39

52

61

55

59

54

64

58

53

44

1 1

41

39

38

38

36

35

34

40

39

43

39

50

60

55

60

54

64

58

53

4P

12

43

39

38

36

35

35

34

41

39

43

39

51

60

53

60

53

63

57

52

4R

13

44

39

36

37

36

35

33

40

38

46

38

52

62

54

60

53

63

58

50

4R

14

44

36

35

37

36

34

33

41

38

47

40

51

63

56

60

54

63

57

50

4&

15

45

35

34

38

37

34

33

39

36

40

51

64

58

60

53

64

58

52

47

16

45

35

34

37

35

35

33

38

36

48

41

52

63

58

61

54

64

59

17

43

36

34

35

34

34

34

38

35

47

42

53

63

57

62

55

65

60

18

41

35

34

35

34

35

34

41

37

40

53

64

56

62

55

65

60

19 I 20

41

35

35

35

34

37

35

40

37

38

55

64

58

64

57

63

58

41

36

35

35

34

38

36

40

36

38

56

48

62

58

64

57

62

56
SACRAMENTO RIVER BASIN Continued 

11-4015. INDIAN CREEK NEAR CRESCENT MILLS, CALI

LOCATION. Lat 40°04'20", long 120°55'35", temperature recorder at gaging station on left bank, 0.8 mil

Crescent Mills, Plumas County. 

DRAINAGE AREA. 739 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1963.

Water temperatures: October 1962 to September 1966. 

EXTREMES, 1962-65. Water temperatures: Maximum, 82°F July 26-28, 1963; minimum (1962-64), freezing p

Jan. 22, 1964.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Nov. 17, 1965.... 

Jan. 12, 1966....

May 11 ...........

Mean 

discharge 

(eta)

370 

292 

716 

680

Silica 

(810,)

19

Iron

(Fe)

Calcium 

(Ca)

14

Magnesium 

(Mg)

0.4

Sodium

(Na)

7.8 

7.2 

4.9 

4.4

Potassium 

(K)

1.3

Bicarbonate 

(HCO,)

78 

76 

53 

50

Carbonate

(CO,)

0 

0 

0 

0

Sulfate 

(S0«)

3.0

Chloride 

(Cl)

2.9 

3.2 

1.1 

.7

Fluoride 

(F)

Nitrate 

(NO,)

0.6

Temperature (°F) of water, water year October 1965 to Se

August

Maximum ....

Minimum ....

September

Maximum ....

Day

TTT

64

Minimum .... 57

78

66

65

58

3

77

66

64

58

4 5

75

65

65

59

75

64

65

58

678

73

64

65

59

75

64

63

59

72

64

6?

56

77

64

62

10] 11

73 71

64 63

61 59

55 55 55

12 13

1

73

63

59

54

71

63

57

54

14 | 15 16

73

63

58

53

72 72

64 64

61

54

61

55

17 | 18 | 19 I 20

71

64

60

55

70

63

59

69

62

60

70

61

62

21

70

62

62

56 57 57 [ 57
SACRAMENTO RIVER BASIN Continue

11-4015. INDIAN CREEK NEAR CRESCENT MILLS, CA

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tuba; W, in distill

Date of collection

Oct. 9, 1965. .....

Jan. 3, 1966......

Feb. 9.. ..........

Sept . 7 ...........

Time 

(24 hour)

1710 

1010 

1700 

1415 

1010 

1230

1100 

1155 

1140 

0630 

1230 

1640

Water 

temperature 

(°F)

62 

41 

40 

36 

36 

36

44 

47 

54 

61 

70 

63

Sampling 

point

Discharge 

(els)

56 

290 

164 

156 

220 

1160

900 

668 

410 

66 

17 

16

Sediment 

concentration 

(ppm)

30 

28 

9 

12 

19 

238

64 

27 

122 

22 

4 

4

Sediment 

discharge 

(tons per day)

4.5 

22 

4.0 

5.1 

11 

745

156 

49 

135 

3.9 

.2 

.2

Perc

0.002 0.004 0.00
SACRAMENTO RIVER BASIN Continued

11-4045. NORTH FORK FEATHER RIVER AT PULGA, CA

LOCATION. Lat 39°47'40", long 121°27'00", at gaging station between railroad and highway bridges, 0.

County, 1 mile downstream from Big Bar, and 1.5 miles downstream from Poe Dam. 

DRAINAGE AREA. 1,953 square miles. 

RECORDS AVAILABLE. Chemical analyses: July 1963 to June 1966 (discontinued).

Water temperatures: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 72°F Aug. 17-19. 

EXTREMES, 1963-66. Water temperatures: Maximum (1963-64, 1965-66), 73°F July 28-30, 1963; minimum 

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Oct. 15, 1965.... 

Nov. 17...... ....

Jan. 12, 1966....

June 9... ........

Mean 

discharge 

(cfs)

57 

387 

61 

75

96 

77 

2040 

61 

59

Silica 

(S10,)

12

Iron 

(Fe)

Calcium 

(Ca)

7.2

Magnesium 

(Mg)

3.0

Sodium 

(Na)

4.0 

3.8 

3.9 

3.4

4.0 

3.1 

2.6 

2.3 

3.8

Potassium 

(K)

0.7

Blcarbonate 

(HCO,)

62 

53 

60 

72

62 

52 

40 

39 

60

Carbonate 

(COJ

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate

(so<)

3.0

Chloride 

(CD

0.7 

.7 

1.0 

1.0

1.2 

.8 

.6 

.6 

.6

Fluorlde

(F)

Nitrat

(NO

0.
March 

Maximun 

Mmimun

April

Maximun 

Minimun

May

Maximun 

Minimun

June

Maximun 

Minimun

July

Maximun 

Minimun 

August 

Maximun 

Minimun

nber

SACRAMENTO RIVER BASIN Continued

11-4045. NORTH FORK FEATHER RIVER AT PULGA, CALI

Temperature (°F) of water, water year October 1965 to 

Maxi

Minn

1

-

47 

46

55 

48

69 

61

69 

63

67 

61

2

_

48 

47

56

48

--

67 

60

70 

64

66 

61

Day

345

__

47

55 

50

60 

52

67 

59

71 

65

67 

61

47

57 

52

60 

52

67 

60

71 

65

67 

62

43 

41

47

56 

52

58 

53

68 

60

71 

65

67 

62

6

45 

42

48

57 

51

56 

54

68 

60

70 

65

68 

63

7

46 

43

48

57

50

59 

54

68

60

70 

64

68 

63

8

46 

44

49

57 

52

61

55

67 

60

70 

65

67 

62

9

45 

44

48

55 

53

63

56

67 

61

70 

65

67 

62

10

47 

45

47

55 

53

64 

56

68 

60

70 

65

66 

61

1 1

45 

43

45

58 

52

64

56

68 

60

70 

64

65 

61

12

44 

44

46

58 

51

64 

56

67

60

70 

65

65

60

13

44 

42

46

58

52

66

57

67 

60

70 

65

64 

59

14

44 

44

47

58 

52

66

59

67 

60

70 

65

63 

58

15

44

43

16

43 

41

52 54

58 

52

67 

60

67 

59

70

63 

59

59 

52

67 

61

67 

59

71

63

59

17

42 

40

54

59 

52

68

60

67 

60

72

64

59

18

43 

41

52

59 

52

68 

61

68 

60

72

63 

61

19

46

43

50

60 

53

69 

61

68 

61

72

65 

61

20

47 

42

50

61 

54

66 

62

69 

61

71

66 

61
SACRAMENTO RIVER BASIN continued

11-4053. WEST BRANCH FEATHER RIVER NEAR PARADISE

LOCATION. Lat 39°47'15", long 121°33 t 40", temperature recorder at gaging station on 

and 4.0 miles northeast of Paradise, Butte County. 

DRAINAGE AREA. 113 square miles.

RECORDS AVAILABLE. Water temperatures: October 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 83°F July 16, Aug. 5; minimum, 38°

EXTREMES, 1962-66. Water temperatures: Maximum (1962-63, 1964-66), 83°F July 15, A

35°F Jan. 12-14, 1963. 

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January 

Maximum ....

Minimum ....

February 

Maximum ....

Minimum ....

March 

Maximum ....

Minimum .... 

April

Maximum .... 

Minimum ....

May

Maximum .... 

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

70

58

55

53

43

43

39

39

44

44

46

45

53

58

55

73

67

79

70

77

73

2

72

57

53

52

43

43

39

39

44

45

46

45

51

59

56

74

69

79

70

76

72

3

71

57

52

51

43

42

39

39

44

45

45

44

50

61

58

74

69

79

70

75

70

4

71

59

53

49

42

42

*0

39

45

45

47

45

50

62

60

75

69

80

71

74

68

5

71

60

57

51

42

42

41

40

45

46

47

46

49

62

60

76

69

83

74

72

66

6

74

62

55

50

42

42

42

41

44

46

46

45

46

62

58

76

69

82

74

69

66

7

68

62

53

49

42

42

42

43

45

45

47

61

58

78

69

81

73

68

63

8

71

59

52

51

43

42

41

44

45

45

50

58

57

78

70

78

70

70

64

9

70

58

52

49

43

43

41

44

45

50

48

60

56

77

70

79

70

70

64

10

71

59

49

46

44

43

43

43

44

51

46

63

59

76

69

76

73

70

64

)]

70

59

46

46

43

42

44

43

45

52

49

65

62

76

69

75

61

69

64

12

68

59

46

46

42

40

43

43

48

53

50

65

62

77

68

68

64

70

63

13

67

58

46

45

40

39

43

43

48

53

51

63

58

79

70

74

66

69

63

14

69

57

45

43

39

38

43

43

48

54

50

58

56

80

70

78

70

70

64

15

67

57

43

41

40

39

43

43

47

54

51

58

54

82

72

80

72

71

65

16

69

58

42

41

40

39

43

43

47

55

53

58

55

83

74

80

73

69

64

17

67

55

41

41

40

38

43

43

47

56

53

58

54

82

75

77

74

65

59

18

69

57

41

41

40

39

44

44

48

55 

53

61

55

82

74

80

74

65

59

19

69

56

41

41

41

40

44

44

48

55

54

65

59

82

74

80

74

65

58

20

67

55

42

41

42

41

43

44

48

54

53

70

62

78

71

78

72

65

58
SACRAMENTO RIVER BASIN Continued 

11-4065. WEST BRANCH FEATHER RIVER NEAR YANKEE HILL

LOCATION. Lat 39°41'55", long 121"33'38", at site of former gaging station,800 feet upstream from hi

miles west of Yankee Hill, Butte County, and 4.9 miles southeast of Paradise. 

DRAINAGE AREA. 149 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1964 to June 1966 (discontinued). 

REMARKS.--No discharge records available.

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Oct. 15, 1965.... 

Nov. 16..... .....

Jan. 12, 1966....

Mar. 10... .......

Mean 

discharge

(cfs)

Silica 

(SiO,)

9.7

Iron 

(Fe)

Calcium 

(Ca)

5.6

Magnesium 

(Mg)

0.6

Sodium 

(Na)

4.0 

2.9 

2.9 

2.3

2.7 

2.3 

1.6 

1.6 

2 8

Potassium 

(K)

0.4

Bicarbonate 

(HCO,)

94 

40 

46 

44

48 

32 

18 

22 

41

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

1.0

Chloride 

(Cl)

1.5 

.5 

1.0 

.7

.8 

.5 

.5 

.2 

.5

Fluoride 

(F)

Nitrat

(NO

0.
SACRAMENTO RIVER BASIN Continued

11-4070. FEATHER RIVER AT OROVILLE, CALIF.

LOCATION (revised). Lat 39°31'13", long 121°32'48", at gaging station 300 feet upstream from fish ba

Oroville business district, Butte County. 

DRAINAGE AREA (revised).--3,624 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: October 1953 to September 1954, November 1956 to September 1966.

Sediment records: November 1956 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F on several days during August; minimum, 39°F o

Sediment concentrations: Maximum daily, 123 ppm Nov. 18; minimum daily, 3 ppm Oct. 19, Apr. 24, Au

Sediment loads: Maximum daily, 3,850 tons Jan. 5; minimum daily, 14 tons Aug. 29. 

EXTREMES, 1953-54, 1956-66. Water temperatures: Maximum, 81°F Sept. 10, 12, 1959; minimum, 35°F Dec

Sediment concentrations (1956-66): Maximum daily, 4,100 ppm Feb. 1, 1963; minimum daily, 1 ppm on 

Sediment loads (1956-66): Maximum daily, 1,500,000 tons Feb. 1, 1963; minimum daily, 3 tons Jan. 1

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 8, 1965. ....

Dec. 3. ..........

Feb. 11..........

Apr. 7...........

June 9 ...........

Mean 

discharge

(cfs)

3190 

3320 

3470 

7270

3120 

4710 

9320 

6530 

2210

Silica 

(SiOa)

10

Iron 

(Fe)

Calcium 

(Ca)

6.4

Magnesium 

(Mg)

2.3

Sodium

(Na)

3.9 

4.3 

4.2 

3.6

4.8 

4.6 

2.5 

2.2 

3.8

Potassium 

(K)

0.7

Bicarbonate 

(HCO,)

59 

63 

54 

45

65 

59 

36 

33 

55

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

3.0

Chloride 

(Cl)

0.9 

1.0 

1.5 

1.1

1.1 

.8 

.6 

.7

Fluoride

(F)

Nitrate 

(NO,

0.1
SACRAMENTO RIVEH BASIN Continued

11-4070. FEATHER RIVER AT OROVILLE, CALIF. Co

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum .... 

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum .... 

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

62

61

54

54

48

48

43

43

43

42

43

43

53

53

54

54

60

60

70

70

69

68

67

67

2

62

62

54

54

48 

48

43

43

43

43

43

43

53

53

54

54

60

60

70

69

70

69

67

67

3

62

61

54

54

48

48

43

43

43

43

43

42

53

53

54

5*

60

60

69

68

71

70

67

67

4

62

61

54

54

48

45

43

43

43

42

42

53

53

55

54

60

59

69

68

71

70

68

67

5

63

62

55

54

47

46

45

43

43

42

42

54

53

55

55

59

59

69

69

71

71

68

68

6

64

63

55

55

47

46

46

43

43

42

42

54

54

55

55

60

59

69

69

71

71

68

68

7

65

64

55

55

47

46

46

43

43

43

42

54

53

55

55

60

60

69

69

71

70

68

68

8

65

64

55

55

47

46

45

43

43

44

43

54

54

55

55

61

60

69

69

70

70

68

68

9

64

64

55

55

47

45

45

43

43

45

44

54

54

55

55

62

61

69

69

70

70

68

68

10

64

63

55

55

45

45

45

43

42

45

45

54

53

55

55

63

62

69

69

70

70

68

68

1 1

63

63

55

55

45

45

44

42

41

45

45

53

51

55

55

64

63

69

69

70

70

68

67

12

63

62

55

55

45

44

44

41

41

45

45

53

52

55

55

64

64

69

69

70

70

67

66

13

62

62

55

54

45

44

43

41

41

46

45

53

53

56

55

66

64

69

69

70

70

67

66

14

62

62

54

54

45

43

42

41

41

46

46

53

53

56

56

67

66

69

68

70

70

66

64

15

62

61

55

54

44

42

41

41

40

46

46

54

53

56

56

68

67

68

68

70

70

64

64

Day

16

61

60

55

55

43 

42

41

41

40

40

46

46

55

54

57

56

70

68

68

68

70

70

65

64

17

60

59

55

54

42

41

41

40

40

40

46

45

56

55

58

57

70

69

68

68

70

70

66

65

18

59

59

54

53

41

41

41

40

40

40

45

44

56

55

59

58

70

70

68

67

70

70

65

65

19

59

58

53

51

41

41

40

40

40

40

46

45

56

54

60

59

70

70

68

67

70

70

66

65

20

58

58

52

51

41

41

40

39

41

40

46

46

54

52

60

60

70

70

68

67

70

70

66

66
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4070. FEATHER RIVER AT OROVILLE, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

It.

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23*.

24..

25..

26*.

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

1$..

16..

17..

18..

19..

20..

21..

22 

23..

24..

25..

26..

27*.

28..

29..

30..

31..

Total

OCT06ER

Mean 

discharge

(cfs)

3520

3280

3080

3060

3250

3280

3140

3190

3170

3100

2950

2690

2690

2690

3280

3540

3650

3630

3720

3830

3740

3630

3450

3580

3520

3630

3560

3610

3670

3630

3610

10*370

Suspended sediment

Mean

concentration

(ppm)

10

10

9

a

7

6

7

5

4

4

4

7

11

10

7

6

6

6

3

6

13

11

7

7

7

7

7

8

7

7

6

"

Tons

per 

day

95

89

75

66

61

53

59

43

34

33

32

51

80

73

62

57

59

59

30

62

131

108

65

68

67

69

67

78

69

69

58

2022

JANUARY

4060

3780

3690

4670

13000

9970

7270

6450

5810

5140

4660

4330

4160

4010

3780

3720

3670

3630

3630

3650

3610

3520

3520

3470

3450

3410

3300

2710

2710

3780

3470

140030

15

11

8

31

106

39

23

18

16

15

14

13

11

10

10

10

11

14

15

16

16

15

14

12

164

112

80

S 450

S 3850

S 1080

451

313

251

208

176

152

124

108

102

100

109

137

147

158

156

143

133

112

10 93

9

12

22

23

95

26

83

107

161

168

970

244

10642

NOVEMBER

Mean 

discharge

(cfs)

3470

3580

3610

3430

3320

3430

3430

3390

3080

3100

3140

3190

3320

4210

4590

4060

3970

9330

7600

6670

5780

4960

4520

5120

5830

5580

5060

4710

4350

3760

133590

Suspended sediment

Mean

concentration

(ppm)

6

7

6

6

a

6

10

9

8

8

6

6

7

21

24

16

54

123

33

25

17

10

12

70

25

13

15

13

11

16

-

Tons

per 

day

56

68

58

56

72

56

93

82

67

67

51

52

63

239

297

175

579

S 3130

677

450

265

134

146

S 1000

394

196

205

165

129

162

9184

FEBRUARY

3430

3540

3230

3300

3890

4040

3870

3540

3360

3250

3120

3010

2990

2930

2890

2850

2830

2790

2950

3190

3030

3030

3170

3390

3500

3650

3520

3340

91630

12

11

10

10

10

11

11

10

8

6

6

7

8

10

11

10

9

10

20

13

6

6

8

11

11

13

9

a

 

111

105

87

89

105

120

115

96

73

53

51

57

65

79

86

77

69

75

159

112

49

49

68

101

104

128

 6

72

2441

DECEMBER

Mean 

discharge

(cfs)

3540

3500

3470

3470

3470

3470

3450

3430

3430

3430

3430

3520

3500

3470

3410

3300

3360

3320

3250

3250

3230

3280

3320

3410

4610

3920

3610

3740

5040

4660

4400

111690

Suspended sediment

Mean

concentration

(ppm)

14

11

12

13

10

10

11

11

11

12

14

13

10

13

14

12

10

9

13

a

10

10

a

16

55

16

a

21

47

19

17

-

Tons

per

day

134

104

112

122

94

94

102

102

102

111

130

124

95

122

129

107

91ai

114

70

87

89

72

S 153

685

169

78

S 225

640

239

202

4779

MARCH

3250

3210

3100

3010

2990

2990

3060

3250

3470

4710

5890

6370

8340

10340

9380

8710

7120

6310

5690

5380

5090

4780

4590

4400

4540

4830

5400

6090

6880

8110

8680

169960

7

7

10

11

19

26

29

29

30

32

34

23

15

14

11

10

14

14

15

16

11

10

12

12

15

22

-

61

61

67

49

48

57

66

aa

103

242

413

499

653

834

810

800

442

256

215

160

137

181

174

178

196

143

146

197

223

328

516

8343

S Computed by subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4070. FEATHER RIVER AT OROVILLE, CALIF. Continued 

Suspended sediment, *ater year October 1965 to September 1966 Continued

Day

1..

2..

3..

4«.

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16. .

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15,.

16..

17..

It..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean

discharge

(cfs)

9190

10400

10000

9320

8930

9220

9320

9250

9090

13*00

13400

12300

10500

9350

9290

9130

9540

9640

8810

7660

6850

6560

6390

6390

6620

7210

6880

6670

6530

6230

264070

Suspended sediment

Mean 

concentration

(ppm)

17

19

18

15

14

12

11

10

11

49

49

24

14

11

9

8

8

8

10

8

8

7

7

3

5

5

6

7

6

7

Tons 

per 

day

422

534

486

377

338

299

277

250

270

S 1840

1770

797

397

278

226

197

206

208

238

165

148

124

121

52

89

97

111

126

106

118

10667

JULY

2610

2630

2610

2610

2770

2830

2770

2770

2770

2790

2770

2770

2790

2770

2770

2770

2750

2730

2730

2710

2T10

2690

2690

2690

2»90

2650

2650

2670

2*70

2690

2670

84190

20

16

11

8

8

10

11

12

12

11

10

10

10

141

114

78

56

60

76

82

90

90

83

75

75

75

10 75

10

10

9

9

8

7

8

9

9

9

9

10

11

10

9

8

7

75

75

67

66

59

51

59

65

65

65

65

72

79

72

65

58

50

2278

MAY

Mean

discharge

(cfs)

6090

6000

6030

6140

6530

6670

6650

6560

6530

6620

7450

6910

6420

6030

5690

5010

4860

4570

4350

4330

4110

3850

3540

3280

2950

2810

3010

2830

2510

2310

2410

153050

Suspended sediment

Mean 

concentration 

(ppm)

6

10

8

8

8

8

8

7

8

8

7

7

8

8

9

12

14

17

19

18

17

15

13

--

Tons 

per 

day

99

162

98

83

159

162

108

106

106

125

161

149

139

130

123

95

105

99

82

82

89

83

86

106

112

129

154

138

115

94

85

3564

AUGUST

2670

2630

2530

2*70

2550

2470

2470

2510

2550

2590

2590

2590

2610

2610

2610

2410

2190

2120

2010

1990

1960

1920

1870

1870

1870

1850

1830

1830

1790

1690

1650

69300

7

9

13

14

14

15

16

18

18

17

15

12

9

6

3

4

10

43

50

55

47

41

33

33

34

41

49

42

49

49

49

49

59

77

80

76

81

85

93

91

86

76

60

44

30

14

18

45

1»79

JUNE

Mean

discharge

(cfs)

2530

2470

2250

2350

2310

2310

2450

2390

2210

2210

2230

2190

2350

2630

2410

2250

2330

2390

2370

2350

2330

2310

2290

2270

2250

2230

2150

2150

2250

2450

69660

Suspended sediment

Mean 

concentration 

(ppm)

11

10

11

11

10

11

15

20

18

12

10

10

11

11

10

10

10

10

9

8

10

13

13

12

11

10

10

14

20

21

Tons 

per 

day

75

67

67

70

62

69

99

129

107

72

60

59

70

78

65

61

63

65

58

51

63

81

80

74

67

60

58

81

122

139

2272

SEPTEMBER

1580

1720

1560

1470

1470

1420

1390

1360

1230

1230

1230

1200

1170

1230

1340

1360

1390

1390

1360

1310

1310

1310

1280

1230

1230

1200

1170

1150

1210

1140

39640

9

8

8

7

7

9

11

12

12

11

8

8

8

8

8

8

7

7

7

9

10

9

8

9

10

11

10

8

9

14

38

37

34

28

28

35

41

44

40

37

27

26

25

27

29

29

26

26

26

32

35

32

28

30

33

36

32

25

29

43

958

Total discharge for year (cfs-days) .................................................... 1431180

Total load for year (tons) ............................................................. 58829

S Computed by subdividing day.
SACRAMENTO RIVER BASIN Continued 

11-4070. FEATHER RIVER AT OROVILLE, CALIF. Conti

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

_____________________P, plpet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Jan. 5, 1966.......

Time 

(24 hour)

1555 

0925 

1330 

0940

Water 

temperature

(°F)

52 

52 

49 

46

Sampling 

point

Discharge

(cfs)

4540 

11600 

5350 

15300

Sediment 

concentration 

(ppm)

22 

176 

125 

150

Sediment 

discharge 

(tons per day)

270 

5510 

1810 

6200

Perce

0.002 0.004 0.00
SACRAMENTO RIVER BASIN Continued 

11-4071.5. FEATHER RIVER NEAR GRIDLEY, CAL

LOCATION (revised). Lat 39°22'01", long 121°38'43", 300 feet upstream from new high

County.

DRAINAGE AREA. 3,676 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1964 to September 1966.

Sediment records: October 1964 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Minimum, 39°F Dec. 21.

Sediment concentrations: Maximum daily, 510 ppm Jan. 5; minimum daily, 3 ppm Dec. 

Sediment loads: Maximum daily, 16,900 tons Jan. 5; minimum daily, 1.8 tons June 4

EXTREMES, 1964-66. Water temperatures: Minimum, 39°F Jan. 1, 2, 1965, Dec. 21, 196

Sediment concentrations: Maximum daily, 1,340 ppm Dec. 25, 1964; minimum daily, 3 

1965.

Sediment loads: Maximum daily, 527,000 tons Dec. 23, 1964; minimum daily, 1.8 ton

Temperature (°F) of water, water year October 1965 to 

November .....

January. .......

February. ......

June ..........

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

August ........

September .....

1

51

42

43

78

_

70

2

41

44

68

_

80

3

53

41

43

78

_

73

4

41

45

67

_

79

5

56

46

46

78

74

6

42

42

66

_

RO

7

55

40

46

76

_

73

8

46

73

_

80

9

56

45

45

71

73

10

45

45

_

79

11

55

44

44

71

74

_

68

12

44

45

_

78

13

54

44

45

76

75

_

14

44

45

74

79

15

54

46

45

77

_

_

68

Day

16

53

45

45

_

77

67

17

53

44

46

78

76

_

68

18

43

45

_

79

19

52

44

46

78

78

__

72

20

49

43

48

_

7«
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4071.5. FEATHER RIVER NEAR GRIDLEY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

2960

2870

2600

2520

2580

2690

2540

2490

2560

2480

2390

2050

2000

2010

2280

2730

2870

2910

2910

3090

3050

2990

2780

2880

2800

2900

2930

2900

2970

2950

3000

83680

4030

3740

3580

4100

11600

10200

7400

6510

5900

5300

4(30

4450

4290

4120

3870

3780

3800

3760

3760

3780

3710

3620

3600

3540

3500

3430

3350

2(40

2790

3*40

3590

140410

Suspended sediment

Mean

concentration

(ppm)

12

12

11

11

11

11

11

8

7

a

9

9

10

9

10

10

10

11

11

13

12

11

10

11

11

10

10

10

10

11

11

-

Tons

per 

day

96

93

77

75

77

80

75

54

48

54

58

50

54

49

62

74

77

86

86

108

99

89

75

86

83

78

79

78

80

88

89

2357

JANUARY

11

6

4

15

510

200

43

31

25

10

8

6

6

8

7

6

5

8

11

9

7

10

9

7

10

10

8

16

13

100

31

120

61

39

S 205

S 16900

S 5860

859

545

398

143

104

72

69

89

73

61

51

 1

112

92

70

98

87

67

95

93

72

123

98

S 0

300

27037

NOVEMBER

Mean 

discharge

(cfs)

3240

3200

3340

3310

3100

3020

3010

3040

2810

2760

2830

2910

3140

3830

4620

4140

3950

8760

7910

6820

5990

5140

4680

4960

5900

5700

5210

4830

4490

3930

130570

Suspended sediment

Mean

concentration

(ppm)

13

12

11

11

10

10

10

10

9

8

7

7

6

8

64

50

28

280

153

49

31

24

21

50

53

30

22

19

15

14

"

Tons

per 

day

114

104

99

98

84

82

ai

82

68

60

53

55

51

83

798

559

299

S 7520

3270

902

501

333

265

670

844

462

DECEMBER

Mean 

discharge

(cfs)

3580

3500

3480

3440

3440

3440

3400

3390

3370

3370

3400

3500

3520

3450

3380

3280

3330

3290

3210

3190

3220

3200

3260

3290

4370

3940

309 3550

248 3530

182

149

18425

FEBRUARY

3430

3650

3420

3350

3840

4080

3980

3660

3500

3390

3250

3110

3120

3040

3020

2960

2940

2920

3010

3300

3150

3170

3210

3420

3620

3710

3670

3500

~

 

94420

18 ! 167

21

16

17

21

20

19

16

14

16

10

9

8

5

13

16

9

a

9

17

9

a

7

13

29

16

11

8

207

148

154

218

220

204

158

132

146

88

76

67

41

106

128

71

63

73

151

77

68

61

120

283

160

109

76

. 

3572

4750

4680

4370

110120

Suspended sediment

Mean

concentration 

(ppm)

13

12

11

10

9

10

10

12

13

12

11

14

12

12

12

10

4

4

3

3

5

8

5

10

190

30

9

20

250

48

22

MARCH

3410

3360

3300

3200

3170

3180

3240

3380

3590

4500

5780

6320

7810

10700

9300

8720

7260

6310

5750

5410

5150

4810

4540

4260

4280

4570

5110

5660

6350

7560

 130

168110

7

5

5

5

6

4

4

7

9

22

41

58

70

106

75

57

43

39

30

19

17

13

14

14

14

14

14

23

24

30

39

-

Tons

per 

day

126

113

103

93

84

93

92

110

118

109

101

132

114

112

110

89

36

36

26

26

43

69

44

89

S 2290

319

86

S 206

S 3190

607

260

9026

64

45

45

43

51

34

35

64

87

267

640

990

S 1720

3060

1880

1340

843

664

466

278

236

169

172

161

162

173

193

351

411

612

856

16112

S Computed by subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4071.5. FEATHER RIVER NEAR GRIDLEY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1«.

2..

3..

4..

5..

6>.

7..

8..

9..

10..

11..

12..

13..

14..

1$..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cf.)

8530

9470

9470

8770

8280

8250

8200

8100

7880

10600

11100

10300

8870

7760

7350

7010

7170

7190

6640

5640

4550

4260

3960

3930

4000

4360

4240

4070

3890

3650

207450

463

496

491

527

614

711

699

640

643

645

668

686

670

679

666

683

690

690

690

690

680

678

645

636

699

658

653

657

680

619

718

20054

Suspended sediment

Mean

concentration

(ppm)

39

55

48

38

34

25

20

20

28

164

110

48

35

18

15

16

15

14

12

11

9

10

8

6

7

14

11

14

10

10

JULY

10

10

11

10

9

10

11

11

11

11

11

12

13

13

12

12

11

11

9

10

10

8

7

7

7

9

9

8

6

6

5

-

Tons

per 

day

898

1410

1230

900

760

557

443

437

596

S 4920

3300

1330

838

377

298

303

290

272

215

168

111

115

86

64

76

165

126

154

104

99

20642

13

13

15

14

15

19

20

19

19

19

20

22

24

24

22

22

20

20

17

19

18

15

12

12

12

16

16

14

11

11

9.7

522.7

MAY

Mean 

discharge

(cfs)

3440

3340

3310

3430

3800

4060

4150

4100

4070

4090

4760

4500

4180

3740

3460

2840

2610

2400

2020

2090

1840

1640

1310

1080

820

499

570

656

374

263

232

79674

771

779

653

605

612

604

572

597

654

693

702

713

727

727

770

703

473

329

295

261

236

238

206

218

278

278

294

323

379

381

528

15599

Suspended sediment

Mean

concentration

(ppm)

8

6

7

7

8

11

7

8

7

9

10

15

14

10

10

8

8

8

8

8

9

7

7

6

6

6

7

6

8

8

7

AUGUST

6

8

8

8

8

7

8

8

10

11

8

6

6

6

6

7

5

4

It

5

6

6

6

7

8

9

8

6

6

5

5

Tons

per 

day

74

54

63

65

82

121

78

89

77

99

129

182

158

101

93

61

56

52

44

45

45

31

25

17

13

6.1

11

11

8.1

5.7

4.4

1902.3

12

17

14

13

13

11

12

13

18

21

15

12

12

12

12

13

6.4

3.6

3.2

3.5

3.8

3.9

3.3

4.1

6.0

6.8

6.4

5.2

6.1

5.1

7.1

294.5

JUNE

Mean 

discharge

(cfs)

270

290

193

164

165

162

172

237

176

145

135

131

122

376

239

150

136

142

146

145

160

159

150

128

123

118

117

158

191

268

5268

Suspended sediment

Mean

concentration

(ppm)

7

7

6

4

6

7

6

5

7

9

11

8

6

6

7

7

6

6

5

5

5

6

6

6

7

8

8

8

9

10

Tons

per 

day

5.1

5.5

3.1

1.8

2.7

3.1

2.6

3.2

3.3

3.5

4.0

2.8

2.0

6.1

4.5

2.8

2.2

2.3

2.0

2.0

2.2

2.6

2.4

2.1

2.3

2.5

2.5

3.4

4.6

7.2

~-

96.6

SEPTEMBER

425

413

647

468

452

582

511

5

6

7

6

6

G

8

589 1 8

526

550

550

549

511

569

719

766

821

817

836

851

857

891

927

909

917

896

829

820

756

821

20775

7

6

6

6

£

6

6

6

6

6

6

6

7

6

5

6

8

6

5

6

7

7

~

~

5.7

6.7

12

10

9.8

13

11

13

9.9

8.9

8.9

8.9

8.3

9.2

12

12

13

13

14

14

16

14

13

15

20

15

11

13

14

16

--

360.3

Total discharge for year (cfs-days). 

Total load for year (tons)..........

1076130

100347.4

S Computed by subdividing day.
SACRAMENTO RIVER BASIN Continued 

11-4071.5. FEATHER RIVER NEAR GRIDLEY. CALIF. Continue

Periodic determinations of suspended-sediment discharge and particle size, water yea

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, decantat

_____________________P, plpet; S, sieve; V, visual accumulation tube; W, in distilled wa

U/4*Af

Date of collection

Nov. 18, 1965.,...

Jan. 6, 1966......

Time 

(24 hour)

1750 

0930

Water 

temperature 

(°F)

40

Sampling 

point

Discharge

(cfs)

13000 

12900

Sediment 

concentration 

(ppm)

366 

217

Sediment 

discharge 

(tons per day)

12850 

8560

Percent fi

0.002 0.004 0.008 0.0
SACRAMENTO RIVER BASIN Continued 

11-4077. FEATHER RIVER AT YUBA CITY, CALIF

LOCATION. Lat 39*08"20", long 121°36'17", at gaging station on left bank at Sacrament

County, and 0.7 mile upstream from confluence with Yuba River. 

DRAINAGE AREA. 3,974 square miles. 

RECORDS AVAILABLE. Water temperatures: July 1964 to September 1966.

Sediment records: October 1964 to September 1966.

EXTREMES, July 1964 to September 1965. Water temperatures: Maximum, 89°F July 29, 1

January.

Sediment concentrations: Maximum daily, 786 ppm Dec. 24; minimum daily, 16 ppm Nov

Sediment loads: Maximum daily, 334,000 tons Dec. 24; minimum daily, 61 tons Aug. 3

EXTREMES, 1965-66. Water temperatures: Maximum, 83°F Aug. 6, 7.

Sediment concentrations: Maximum daily, 480 ppm Nov. 19; minimum daily, 14 ppm Aug

Sediment loads: Maximum daily, 15,400 tons Jan. 6; minimum daily, 13 tons June 17. 

EXTREMES, 1964-66. Water temperatures: Maximum, 89"F July 29, 1964; minimum (1964-6

Sediment concentrations: Maximum daily, 786 ppm Dec. 24, 1964; minimum daily, 14 p

Sediment loads: Maximum daily, 334,000 tons Dec. 24, 1964; minimum daily, 13 tons 

REMARKS. Records of water temperatures furnished by California Department of Water R

Temperature (°F) of water, July to September 

July

Max mum ....

Min mum ....

Augus

Max mum ....

September

Max mum ....

Day

1

78

73

69

66

2

77

72

70

68

3

78

72

72

69

4

77

n

72

70

5

78

74

72

69

6

80

76

72

69

7

78

76

70

68

8

79

75

70

68

9

77

74

69

67

10

79

74

70

68

11

76

74

71

69

12

75

74

72

70

13

78

73

70

69

14

77

72

70

69

15

74

70

71

60

16

75

71

72

70

17

76

72

71

69

18

76

71

69

68

19

74

72

68

66

20

75

72

69

67
SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. C

Temperature (°F) of water, water year October 1964 to 

Month

October

Maximum ....

Minimum ....

November 

Maximum ....

Minimum .... 

December 

Maximum ....

Minimum .... 

January

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

66

6*

58

57 

47

47 

39

38

41

41

47

46

50

50

57

56

62

61

72

70

77

75

72

71

2

66

64

57

56 

47

47 

38

38

42

41

47

47

50

50

57

55

62

61

76

72

77

75

70

70

3

67

65

56

55 

47

46

38

38

42

42

47

47

50

50

55

52

63

62

76

74

76

75

70

70

4

67

65

55

55 

46

46

3B

42

42

47

47

50

50

53

52

64

63

76

74

76

75

70

70

5

67

65

55

55 

46

45

40

42

42

48

47

50

50

53

52

65

64

76

75

77

76

69

68

6

67

66

55

54 

45

45

43

43

42

48

48

50

50

53

52

65

64

77

75

77

76

6B

66

7

67

66

54

54 

45

45

42

43

43

48

48

50

50

53

51

64

63

76

74

77

76

66

65

8

66

64

54

54

45

45

40

43

43

49

48

50

50

54

51

63

62

76

74

76

75

66

65

9

65

63

55

54 

46

45

40

44

43

49

49

50

49

54

53

64

62

75

73

75

75

66

10

65

64

54

51 

47

46

40

43

43

49

49

49

48

55

54

65

64

73

71

75

75

66

65J 66

1 1

65

63

51

48

47

40

43

43

49

49

48

48

57

55

66

65

73

71

75

74

66

66

12

64

63

49

47

45

41

43

43

50

49

49

48

58

56

67

66

74

72

74

72

66

65

13

64

63

45

43

41

43

43

50

49

50

49

58

57

67

67

75

73

72

72

67

66

14

63

61

43

43

41

43

43

49

49

50

50

58

57

67

66

75

73

73

72

67

66

15

63

61

43

43

41

44

43

50

49

50

50

58

57

66

64

77

75

73

73

68

67

16

63

62

43

42

41

44

44

50

50

51

50

59

58

65

64

78

76

73

73

68

67

17

63

61

42

42

41

44

44

50

50

50

50

60

58

64

62

78

76

73

73

67

64

18

62

60

42

42

41

44

44

50

50

50

50

60

58

64

62

77

75

7*

73

64

62

19

62

60

43

42

41

44

44

50

50

51

50

59

58

66

64

76

74

74

74

62

62

20

62

60

44

43

41

44

44

50

50

52

51

58

57

69

66

75

71

74

74

62

61
SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. C

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum ....

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June

Minimum .... 

July

Minimum .... 

August 

Maximum .... 

Minimum .... 

September

Minimum ....

i

62 

62

58 

58 

46

47

*7 

55

66 

65

75

73

80

75

72 

70

2

62 

62

58 

57 

45

44

46

58

58

68 

66

76 

74

81

77

74 

71

345

'

62 

62

57 

56 

45

40

43

45

61

69

67

76 

74

80

77

77 

73

62 

62

57

56 

45

44

*4

53

71 

68

78 

75

82 

78

77

73

6

62 62 

62 62

57 

56

46

46

43

54

58

73 

70

78 

76

81 

78

78

74

57 

56 

44

7 8 9 10 1 1

Day

12 13

'

63 

62

63 

63

57! 56 

56 j 56 

44 43

!

46 45

64

63

56 

56

63 | 63 

63 63

56 

56 

44

63 63 

63 63

56 56

561 56

44 --

56 

56

14 15 16

63

63

56

55 

43

63 62

621 60

55 55 

55 55 

43 41

V18

\l

55 

54 

42

59 

58 

55

19

59 

58 

53

41 1 41

47 - 44 i 43 43 42(42

 44 45

54

60 

59

72 

68

78 

7*

83 

79

77 

73

48

54

60 

58

71 

67

74 

70

83

79

74 

70

47

53

59

58

73 

71

73 

68

82 

79

72 

68

43 45 44 43 --

48

52

50 »9 48 ~

46 1 -- 44 I 41

45 46 '44 46|46

48 481 49 48| 46

- 51 51 51151

601 59 

59 58

751 75 

73 t 73

73 76

70 1 71

81 

78

73 

69

81

77

73 

70

60i61 

58| 58

74 

72

75 

72

79

75

73 

72

74 

70

78 

74

72 70 

68[68

61 

59

75 

72

74 

71

77 

75

69 

65

61

59

80

73

70

77 

74

69 

65

 51 I 

|

62

60

83

75 

71

79

75

69

65

63 

60

81

75 

72

79 

76

71 

67

65 

61

79

75 

70

82

77

71 

69

55

66 

62

80

77 

72

80 

77

71 

69

42

20

59 

59 

52

39

40

45 -

48

53

67 

64

81

78 

74

79 

75

71 

68

-

53

69

65

79

79 

74

77 

73

71 

69
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. Continued 

Suspended sediment, water year October 1964 to September 1965

Day

1..

2..

3..

4..

5..

6..

7..

3..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

23..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

digcharge

(cfs)

2190

2200

2210

2250

2260

2240

2240

2250

2260

2260

2250

2250

2220

2210

2220

2280

2230

2220

2200

2170

2170

2210

2190

2190

2190

2200

2190

2210

2*20

2590

2600

69770

Suspended sediment

Mean

tration 

(ppm)

__

36

42

45

40

36

34

33

32

32

32

32

34

32

31

31

30

29

28

21

21

21

21

21

23

25

31

37

--

Tons

per 

day

E 190

E 200

E 200

E 210

220

254

272

B 243

B 220

207

200

194

192

191

B 192

B 209

B 193

B 186

B 184

B 176

170

167

124

B 124

B 124

125

124

137

163

217

B 260

5868

JANUARY

19100

16000

16200

26*00

34100

60500

59300

37200

27600

22*00

18900

17900

16*00

1*900

1*200

13700

12900

12200

12000

11800

11500

11000

10800

19900

24400

19900

16800

14500

12900

11900

11300

628600

363

370

438

349

270

483

230

180

225

238

267

310

285

270

18700

16000

K 19500

S 24200

24900

S 81900

36800

18100

16800

14400

13600

15000

12600

10900

248 ' 9510

242 8950

262 9130

223 7350

222 7190

210

220

220

230

543

280

311

277

281

23 S

200

190

--

6690

6830

6530

6710

K 29200

18400

16700

12600

11000

8190

B 6430

B 5800

500610

NOVEMBER

Mean 

discharge

(cfs)

2300

2650

3380

2730

2470

2140

2020

1640

1710

4220

4830

4610

4830

4120

3700

35*0

3400

33*0

3230

3070

3020

3050

3050

3060

3130

3230

3410

3500

3820

3840

~

97040

Suspended sediment

Mean

tration 

(ppm)

27

32

54

37

30

19

17

16

25

77

84

51

45

35

31

33

32

32

30

31

33

33

31

29

29

30

32

35

33

40

--

-

Tons

per 

day

B 168

229

B 493

273

B 200

110

B 93

B 71

115

K 922

B 1100

635

587

389

310

315

294

289

262

257

B 269

B 272

255

240

245

262

295

331

340

415

--

10036

FEBRUARY

11400

11300

11000

10600

10700

12700

12600

11500

10600

9990

9360

8930

8640

8370

8190

7940

7660

7690

7490

7170

7320

7490

7520

7520

7280

6810

6970

8140

 

 

252880

207

300

295

290

227

300

334

320

281

240

233

21*

233

244

219

193

195

205

208

219

209

198

187

169

1*8

150

163

184

--

--

6370

9150

8760

8300

6560

10300

11400

9940

8040

6470

5890

5160

5440

5510

4840

4140

4030

4260

4210

B 4240

B 4130

B 4000

B 3800

3430

2910

2760

3070

40*0

161150

DECEMBER

Mean 

discharge 

(cf»)

3750

4560

5290

4490

4020

3300

3660

3590

3530

3520

3870

6060

4700

4200

4210

4040

3860

3750

4000

5910

14800

56900

156000

157000

135000

80000

71000

61800

36000

30000

23800

907110

Suspended sediment

Mean

concentration

(ppm)

36

130

128

66

35

26

25

25

28

31

103

192

52

40

32

22

2*

29

150

510

*60

4*5

773

786

680

510

320

260

300

322

355

-

Tons

per 

day

365

K 1660

1830

800

380

267

247

242

267

295

K 1230

S 3210

660

454

364

240

250

294

B 1620

B 8140

B 18400

68400

S 333000

S 334000

2*8000

110000

61300

43400

29200

26100

22800

1317*15

MARCH

8550

7730

7620

7080

6690

6630

6830

6580

6670

6670

6580

6720

7170

7110

6840

6840

6680

6740

6670

6470

6670

6690

6890

7240

7700

7520

7290

8990

8270

7910

7840

221880

209

170

135

117

112

1*7

130

100

128

131

1*8

137

1*0

139

108

123

133

13*

132

92

70

81

110

1*1

1*4

132

208

245

200

189

170

4820

3550

2780

2240

2020

2630

2400

1780

2310

2360

2630

2490

2710

2670

1990

2270

2400

24*0

2380

1610

1260

1460

2050

2760

2990

2680

4090

5950

4470

4040

3600

85830

E Estimated. 

S Computed by nbdividing day.

B Computed from estimated-concentration graph. 

K Computed from estimated-concentration graph 

and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. Continued 

Suspended sediment, water year October 1964 to September 1965 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

&..

7..

8..

9..

10..

11..

12..

13..

14..

1%..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cf«)

7810

8010

8030

7890

7790

7660

7550

7440

8110

11300

9990

8920

8700

8780

8740

8300

21600

19900

17600

20000

20200

23600

23100

20500

18900

18300

18000

17500

17200

17300

408720

Suspended sediment

Mean

tration 

(ppm)

150

138

141

146

142

128

120

137

205

275

164

146

139

135

147

455

400

242

205

293

500

285

278

333

351

*00

382

250

238

230

~

Tons

per 

day

3160

2980

3060

3110

2990

2650

2450

2750

4490

8 8390

B 4420

B 3520

3270

3200

3470

B 10200

B 23300

B 13000

B 9740

15800

B 27300

18200

17300

18400

17900

19800

B 18600

11800

B 11100

B 10700

297050

JULY

2120

1880

2100

2050

1890

1750

1720

1690

1580

1520

1500

1490

1410

1390

1560

1450

1340

1320

1300

1300

1420

1340

1320

1330

1340

1130

1100

1130

1120

1120

1170

45880

46

40

38

37

33

28

23

22

22

24

25

24

22

20

21

23

24

23

22

23

25

24

21

21

23

23

21

22

24

26

26

-

263

203

215

205

168

132

107

100

94

98

101

97

84

75

88

90

B 87

B 82

77

81

96

87

75

75

83

70

62

67

73

79

82

3296

MAY

Mean 

discharge

(cfs)

17200

15000

13300

11700

10600

10000

9130

8420

7730

7500

7360

7170

7470

7460

7280

7280

7150

7510

7330

7270

7370

7160

6630

6390

6070

5980

5850

5750

5810

5250

4810

250930

Suspended sediment

Mean

tration 

(ppm)

189

154

285

480

480

410

330

240

150

130

110

100

90

80

90

90

83

75

74

72

75

90

111

123

120

110

102

97

84

67

59

-

Tons

per 

day

B 8780

B 6240

10200

15200

13700

B 11100

B 8130

B 5460

3130

B 2630

B 2190

B 1940

B 1820

1610

B 1770

B 1770

1600

1520

1460

1410

1490

B 1740

B 1990

2120

1970

1780

1610

1510

1320

950

766

118906

AUGUST

1210

1170

1160

1150

1120

1070

1200

1310

1280

1260

1350

1760

2240

2080

1760

1550

1490

1430

1450

1490

1440

1420

1370

1360

1360

1340

1340

1330

1290

1250

1250

43280

25

24

24

24

23

23

24

24

23

22

26

38

58

42

32

26

26

28

28

28

26

24

22

22

21

21

21

21

20

20

18

~

82

76

75

75

70

66

78

85

79

75

95

B 181

B 351

236

152

109

105

108

110

113

101

92

81

81

77

76

76

75

70

68

61

3179

JUNE

Mean 

discharge

(cfs)

4790

5230

5080

4900

5180

5130

5150

4930

4810

4300

4390

4110

3150

2870

3610

3580

3280

3480

3600

2910

2550

2820

2970

2990

2810

2690

2030

1810

1940

2150

109240

Suspended sediment

Mean

concentration 

(ppm)

59

60

64

65

66

67

67

68

69

71

73

73

68

62

135

127

91

77

68

62

58

60

60

59

58

53

42

40

43

47

~

Tons

per 

day

763

847

878

B 860

B 923

B 928

932

905

896

824

865

810

578

480

B 1320

1230

806

723

661

487

399

457

481

476

440

B 385

B 230

195

225

273

20277

SEPTEMBER

1270

1280

1280

1340

1360

1400

1500

1600

1840

1780

1750

1830

1850

1680

1620

1640

1690

2090

2400

2450

2250

2180

2230

2200

2260

2230

1980

1910

2080

2510

55480

18

21

22

22

22

22

23

28

29

26

26

27

28

31

32

30

30

39

53

52

46

44

44

45

45

39

30

31

55

65

~

62

73

76

B 80

B 81

83

93

121

B 144

125

B 123

B 133

140

141

140

133

137

B 220

B 343

344

292

259

B 265

B 267

B 275

B 235

160

B 160

B 309

441

5455

Total discharge for year (cf s-days) .................................................... 3090810

Total load for year (tons) ............................................................. 2529072

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

2$..

26..

27..

28,.

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7,.

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

2710

2700

2*70

2*30

2370

2560

2510

2*80

2550

2480

2*80

2220

2070

2070

2130

2570

2780

2880

2810

2910

2910

2820

2700

2670

2690

2690

2800

27*0

2800

2790

2770

80560

Suspended sediment

Mean

concentration 

(ppm)

111

116

92

69

57

69

65

58

53

*9

*5

*2

38

35

3*

52

59

61

61

60

56

53

*9

*3

*1

*1

**

*3

*1

38

38

Tons

per 

day

812

8*6

61*

*53

365

*77

**1

388

365

B 328

B 301

B 252

212

196

196

B 361

**3

B *7*

B *63

B *71

**0

*0*

357

310

298

298

333

318

310

B 286

B 28*

12096

JANUARY

*210

3750

3*70

35*0

9720

12100

8590

6820

6060

5390

*7SO

*270

3930

3730

3530

33*0

3290

3210

3120

3070

30*0

2980

2900

2870

2830

2780

27*0

2*80

2230

3800

4*50

133020

60

**

3*

3*

37*

*70

251

1*8

110

99

89

70

60

5*

51

*7

39

**

**

*0

39

*7

**

37

37

3*

33

2*

18

173

153

B 682

B 4*6

319

B 325

S 11600

15*00

5820

2730

1800

1**0

1150

807

637

5**

*S6

*2*

3*6

381

371

332

320

378

3*5

287

283

255

2**

161

B 108

S 2000

18*0

52261

NOVEMBER

Mean 

discharge

(cfs)

2970

28*0

3010

3020

2870

2760

27*0

2820

27*0

25*0

2570

2600

2770

3130

*130

3920

3600

52*0

7350

5980

5300

*650

*250

*200

*980

49*0

*600

4250

3970

3440

11*380

3660

4530

3780

3240

36*0

4490

4530

3870

3420

3130

2920

2740

2620

2560

2460

2*20

2370

23*0

2*00

2720

2760

2680

2680

2970

3*10

3590

3610

3260

_

88800

Suspended sediment

Mean

concentration 

(ppm)

48

50

56

49

44

41

40

39

39

40

42

44

48

52

150

125

59

248

480

278

187

129

94

97

166

132

100

86

75

52

Tons

per 

day

385

B 383

455

400

3*1

B 306

B 296

B 297

B 289

274

291

309

B 359

B 439

1670

1320

573

S 4380

9530

4490

2680

1620

1080

1100

2230

1760

1240

987

804

511

40799

FEBRUARY

61

120

60

40

50

56

38

32

31

28

26

33

28

21

22

27

25

20

23

34

30

26

22

24

33

42

39

32

603

1470

612

350

B 491

B 679

465

334

286

237

205

24*

198

145

1*6

176

160

126

1*9

B 250

B 224

188

159

192

304

407

380

282

__

9*62

DECEMBER

Mean 

discharge

(cfs)

3270

3180

3150

3120

3090

3090

3060

3040

3040

3040

3050

3190

3260

3180

3090

3010

2970

2960

2910

2870

2860

2820

2860

2950

3660

3930

3380

3290

5260

5300

4830

102710

3060

2960

2830

2690

2600

2580

2610

2820

3040

3730

5360

5650

6050

8690

8350

7810

6840

5920

5400

5060

4730

4370

4080

3870

3830

4040

4*10

*970

5530

6350

7050

1*7280

Suspended sediment

Mean

concentration 

(ppm)

44

42

41

48

45

38

35

36

40

40

38

54

65

51

50

48

45

50

45

43

42

42

34

28

42

51

46

43

150

140

83

MARCH

21

19

16

16

18

18

17

17

28

36

78

125

167

297

206

183

162

138

95

80

77

64

56

48

44

45

53

67

78

110

126

-

Tons

per 

day

388

361

349

404

375

317

289

295

328

328

313

B 465

572

438

417

390

361

400

354

333

324

320

263

B 223

B 415

B 541

420

382

S 2230

2000

1080

15675

174

152

122

116

126

125

120

129

230

363

1130

1910

B 2730

6970

4640

3860

2990

2210

1390

1090

983

755

617

502

476

491

631

899

1160

1890

2*00

41381

S Computed by subdividing day.

B Computed from estimated-concentration graph.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean

digcharge

(cfs)

7490

8110

8440

8020

7380

7340

7320

7280

7110

8900

11200

10400

9180

7690

7000

6660

6690

6910

6420

5640

4560

4060

3730

3730

3890

4170

4260

4060

3750

3620

195010

211

290

358

410

440

568

622

574

580

634

717

710

724

717

710

724

738

759

724

717

696

689

654

610

610

647

610

598

640

654

752

19087

Suspended sediment

Mean

concentration 

(ppm)

130

158

180

188

183

160

141

127

110

131

no

75

76

76

74

70

60

51

57

73

46

47

50

45

40

41

44

52

43

36

"

JULY

35

36

37

38

39

43

44

41

36

37

38

37

35

33

31

32

33

33

28

29

30

26

21

20

21

22

24

23

23

25

27

Tons

per

day

2630

3460

4100

4070

3650

3170

2790

2500

2110

B 3150

3330

2110

1880

1580

1400

1260

1080

952

988

1110

566

515

504

453

420

462

506

570

435

352

52103

20

28

B 36

B 42

46

66

74

64

56

63

74

71

68

64

59

B 63

8 66

68

55

56

56

48

37

33

35

38

40

37

40

B 44

B 55

1602

MAY

Mean

discharge

(cfs)

3470

3380

3360

3470

3760

4120

4180

4170

4200

4370

4980

4940

4460

4020

3760

3320

2900

2740

2460

2270

2200

2010

1750

1460

1200

890

750

850

770

560

460

87230

804

828

717

616

586

580

526

532

574

598

647

647

682

717

731

745

574

460

366

334

318

306

283

262

266

280

298

334

370

375

435

15791

Suspended sediment

Mean

concentration 

(ppm)

35

33

30

36

39

49

52

50

46

43

55

82

68

54

42

36

43

39

32

29

29

28

26

23

19

18

18

17

17

18

18

-

Tons

per 

day

328

301

272

337

396

545

587 '

563

522

507

740

B 1090

819

B 586

B 426

323

337

289

213

178

B 172

B 152

123

91

62

43

36

39

B 35

B 27

B 22

10161

AUGUST

28

26

23

20

20

21

24

26

30

31

25

16

14

17

27

24

22

21

20

20

20

20

20

20

20

20

21

21

21

21

21

~

61

58

45

33

32

B 33

B 34

37

46

50

44

28

26

33

53

48

34

26

20

18

B 17

B 17

B 15

B 14

B 14

B 15

B 17

B 19

B 21

B 21

25

954

JUNE

Mean

discharge

(cfs)

430

470

510

440

400

450

420

420

440

410

350

340

350

290

460

310

244

234

244

262

238

241

220

184

181

184

190

172

169

166

--

9419

Suspended sediment

Mean _ 

 _ ._ Tons concentration J» 

(ppm) d^

19

19

17

17

17

17

20

22

22

22

21

21

22

21

20

20

20

22

25

29

31

31

31

32

32

32

32

33

33

34

-

22

24

23

B 20

B 18

21

23

25

B 26

B 24

20

19

21

B 16

B 25

17

13

14

16

21

20

20

B 18

B 16

16

16

16

B 15

B 15

15

575

SEPTEMBER

515

485

526

610

538

562

780

724

820

752

773

759

689

654

773

938

1010

1060

1060

1030

1050

1060

1140

1200

1160

1160

1060

1000

954

970

25812

21

21

25

35

31

29

34

31

29

27

25

24

23

23

23

25

28

31

32

31

28

26

32

37

35

32

30

26

23

21

B 29

B 28

B 36

B 58

45

B 44

B 72

B 61

B 64

55

52

49

B 43

B 41

48

63

76

89

92

B 86

B 79

74

98

120

B 110

B 100

86

B 70

B 59

B 55

1982

Total discharge for year (cfs-days) ..................................................... 1019099

Total load for year (tons) .............................................................. 239051

B Computed from estimated-concentration graph.
SACRAMENTO RIVER BASIN Continued 

11-4077. FEATHER RIVER AT YUBA CITY, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; L>, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Nov. 4, 1964......

Dec. 24. ..........

Dec. 26.. .........

Jan. 25.. .........

May 4. ............

Nov. 19...........

Jan. 8, 1966......

Mar. 8............

Apr. 8... .........

May 13... .........

Time 

(24 hour)

1345 

0915 

0950 

1050 

1420

1605 

0940 

1415 

1055 

1430 

1130 

0915

1030 

0950 

1015 

0250 

1020 

0945 

1030 

1025

Water 

temperature 

(°F)

58 

50 

51 

50 

51

49 

48 

48 

45 

44 

46 

52

55 

53 

43 

41 

41 

47 

53 

60

Sampling 

point

Discharge

(cfs)

2650 

177000 

157000 

D 80000 

D 80000

D 71000 

63200 

68000 

11600 

23400 

6790 

D 11700

4300 

7660 

3180 

6660 

3210 

2820 

7180 

4460

Sediment 

concentration 

(ppm)

35 

665 

787 

631 

416

320 

377 

491 

245 

251 

704 

492

260 

503 

44 

108 

31 

29 

78 

35

Sediment 

discharge 

(tons per day)

250 

317800 

333600 

136300 

89860

61340 

64330 

90150 

7670 

15860 

12910 

15540

3190 

10400 

378 

1940 

269 

221 

1510 

421

Perce

0.002 0.004 0.008 

D Daily mean discharge.
SACRAMENTO RIVER BASIN Continued 

11-4090. MIDDLE YUBA RIVER ABOVE OREGON CREEK, NEAR NOR

LOCATION. Lat 39°23'35", long 121°04'50", temperature recorder at gaging station, 

Creek, and 2 miles northeast of North San Juan, Nevada County. 

DRAINAGE AREA. 162 square miles.

RECORDS AVAILABLE. Water temperatures: February 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 78°F June 17; minimum, freezing 

EXTREMES, February 1965 to September 1966. Water temperatures: Maximum, 79°F Ju

point Dec. 17, 18, 1966.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum .... 

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

49

47

40

38

37

36

40

39

42

39

51

46

56

50

62

57

74

69

73

69

64

62

2

49

47

40

36

36

35

41

38

40

37

51

46

56

50

64

56

74

70

74

70

64

63

3 , 4 1 5

50 50 50

46 , 48 1 48

i

40

38

38

36

43

40

39

35

52

46

56

52

64

57

73

68

74

70

65

62

41

39

40

38

44

43

39 

36

52

47

58

52

65

57

73

66

74

70

65

63

40

39

43

40

45

44

43

39

53

48

56

53

64

59

74

69

73

70

65

63

. 6 iz_

49

46

40

38

49

_!__?.

:: ::

10

51 50 48

46 49 48 46

j 39 39 41 40

38,38 39 39

43 43 44 42 41

42 41 42

45

43

47

53

46

58

51

62

60

74

70

72

69

65

64

43

41

46

54

49

59

52

63

60

73

69

72

69

64

63

42

40

45

53

48

58

54

67

59

72

69

72

69

64

62

41 ,40

42

40

45

51

49

56

53

70

62

72

70

72

69

65

62

42

40

45

49

46

54

51

71

63

71

66

71

68

63

61

1112

49 49

47 49

42

39

42

41

41 38

38 37

39

36

45

47

43

58

52

71

64

72

66

71

68

62

60

40

37

45

49

46

56

51

72

63

73

68

71

68

61

59

13

49

49

42

38

39

37

38

36

45

44

51

45

60

52

73

65

73

67

71

66

60

58

14 15 16

"

17

49

49

38

35

39

38

39

36

46

43

52

46

59

53

75

67

71

67

71

68

59

56

50

49

35

34

39

38

39

36

44

50

49

34

33

36

36

39

36

43 

i. r\ 43 »«

54

48

60

53

76

68

71

67

70

55

49

60

53

77

70

73

67

70

67 169

59 59

56J57

51

49

18

50

47

35 35

32 32

37

36

40

36

43

39

55

50

62

54

78

71

73

66

71

68

60

57

37

36

r 

19 ' 20

48

46

36

33

37

36

42 43

36 41

45 

41

52

48

63

55

77

71

73

66

72

69

59

57

46

45

36

36

36

35

44

41

47

44

50

47

65

57

77

71

73

68

71

69

59

58

46

42

51

44

66

58

75

70

74

69

71

68

60

58
SACRAMENTO RIVER BASIN Continued 

11-4095. OREGON CREEK NEAR NORTH SAN JUAN, C

LOCATION. Lat 39 0 24'10", long 121°04'35", temperature recorder at gaging station on 

2.7 miles northeast of North San Juan, Nevada County. 

DRAINAGE AREA. 34.4 square miles.

RECORDS AVAILABLE. Water temperatures: February 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F Aug. 17, 18; minimum, 33°F De

EXTREMES, February 1965 to September 1966. Water temperatures: Maximum, 80°F Aug. 

Temperature (°F) of water, water year October 1965 to 

Month

October

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum ....

Maximum .... 

Minimum .... 

July 

Maximum ....

August 

Maximum ....

September 

Maximum ....

1

61 

54

51 

46

42 

38

39 

36

39 

38

39

51

58 

50

64

57

72 

62

76 

68

70 

62

2

60 

54

51 

46

43 

38

38 

35

40 

36

37 

50

59 

51

65

55

64

78 

68

70 

62

3

60 

54

51

43 

38

39

37

41 

38

35

50

59 

54

66

55

61

78 

69

72 

63

4

 

60 

53

51

43 

39

41 

39

42

41

36 

51

63

57

67 

56

62

77 

67

73 

64

5

63

55

51

43 

39

41

40

44 

42

40 

51

I 2,

66 

58

63

76 

67

" 

65

6

63 

56

50

43 

38

42

41

44 

40

43 

51

63 

55

62 

61

64

76 

66

73 

66

7

\ 

63 

56

50

43

39

43 

40

41 

38

51

64

55

65 

59

62

76 

66

72 

65

1 

8

i 

62 

56

52

43 

39

44 

42

41 

38

51

63

57

70 

59

63

76 

67

71 

63

9

62

55

50

46

43

40

42 

41

42

39

'* 

50

62

58

72 

62

65

76 

67

70 

64

10

61 

56

49

43 

40

41 

40

41 

38

48

59 

57

73 

62

63

76 

66

70 

62

60 

54

50

12

60 

54

49

43 44

40| 42

41) 40 

39 37

40' 41 

36 37

46

65 

56

72 

62

63

75 

66

69 

62

42

48

64

55

72 

61

63

76 

66

67 

60

13

60 

54

49

42

38

42 

39

40 

36

51

64 

55

75 

62

62

75 

66

64

60

14

59 

54

48

40 

36

41 

39

40 

36

52

65 

54

77 

65

62

75 

66

65

57

Day

1516

56 

52

50

39 

34

42 

39

40 

36

53

65 

54

78 

67

62

74 

65

64 

57

54 

48

49

38 

33

40 

37

41 

36

54

65 

54

77 

67

62

77 

68

66 

58

ifl

 i

55 

48

50 

48

37 

33

40 

37

41 

37

54

64

55

77 

67

63

80 

70

66 

59

18

56

50

48

37 

33

39

37

43 

39

51

69 

57

76 

66

63

80 

71

64 

62

[^

58 

52

,8

38

34

39 

36

43 

42

46

"

ts

70 

59

76 

66

65

78 

69

68 

61

20

57 

50

48

38

34

39 

36

44 

40

45

50

71 

61

73 

66

66

76

67

68 

62
SACRAMENTO RIVER BASIN Continued

11-4175. SOUTH YUBA RIVER AT JONES BAR, NEAR GRASS V

LOCATION. Lat 39°17'32", long 121°06'13", temperature recorder at gaging station on 

from Rush Creek, 0.9 mile downstream from bridge on State Highway 49, and 5 miles 

DRAINAGE AREA (revised). 308 square miles.

RECORDS AVAILABLE. Water temperatures: February 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F Aug. 2-4; minimum, freezing p

EXTREMES, February 1965 to September 1966. Water temperatures: Maximum, 80°F Aug. 

days during December 1965.

Temperature (°F) of water, water year October 1965 t

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March 

Maximum ....

Minimum .... 

April

Maximum .... 

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

60

55

53

50

47

45

38

37

41

40

40

53

50

60

54

64

60

73

67

70

69

62

2

60

56

50

52

46

45

38

36

41

38

38

53

50

61

54

64

59

74

67

80 

73

69

62

3

60

56

51

50

46

44

40

38

41

40

35

52

49

61

57

65

59

73

65

80 

74

69

63

4

59

56

50

49

44

42

41

40

44

41

35

54

50

63

58

66

60

74

66

80 

72

71

64

5

60

57

50

49

44

42

43

41

44

44

38

54

51

63

60

66

61

74

66

79 

72

72

6 : 7

62

58

49

48

44

41

43

43

44

43

42

55

51

63

57

64

62

74

68

71

62

58

49

46

41

40

8

62

59

51

49

40

39

43 j 44

42|43

43

40

45

56

52

64

58

65

61

73

66

78 

71

j 72 72

65 66 66

40

39

9

62

59

50

48

41

40

43

42

41

39

1

1

55

51

63

60

67

61

73

66

71

70

64

54

51

62

60

71

64

74

66

71

70

64

10

62

59

51

48

40

40

42

41

40

39

51

60

58

72

65

74

66

71

69

63

11

61

58

49

48

42

40

42

40

39

37

49

63

58

72

66

74

67

77 

71

68

63

12

60

57

50

49

42

42

40

38

40

38

50

62

57

72

64

73

66

78

70

66

61

13

60

57

51

50

42

40

40

38

38

36

51

64

58

75

66

73

66

78 

71

63

60

14

59

57

52

51

40

37

40

39

39

36

52

64

59

77

69

73

66

77 

70

62

57

15

58

55

53

51

37

35

40

40

39

36

56

51

65

59

78

74

73

66

70

62

57

16

55

52

54

53

35

34

40

38

39

36

58

52

66

59

78

73

73

69

73

64

58

17

54

51

53

53

34

32

38

37

40

37

58

54

66

60

78

72

74

69

71

65

59

18

55

52

56

53

33

32

37

36

42

38

56

52

68

61

78

70

75

68

72

62

61

19

57

54

55

53

33

32

37

36

44

42

53

49

70

63

78

72

76

68

70

66

20

57

54

53

52

34

32

36

35

43

41

52

47

71

65

74

70

77

73

69

66

61 61
SACRAMENTO RIVER BASIN Continued

11-4215. YUBA RIVER AT MARYSVILLE, CALIF. 

(Formerly reported as 11-4210. Yuba River near Marysvill

LOCATION (revised). Lat 39°08'40", long 121°34'35", temperature recorder at Simpson Lane Brldg<

station near Marysville, and approximately 2 miles upstream from mouth. 

DRAINAGE AREA. 1,340 square miles, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1963.

Water temperatures: October 1963 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 85°F Aug. 3, 4, 6, 17; minimum, 40°F Feb. 17.

EXTREMES, 1963-66. Water temperatures: Maximum, 85°F July 24, 25, 1964, Aug. 3, 4, 6, 17, 1966; min

REMARKS. Discharge data from 11-4210. Yuba River near Marysville used for miscellaneous chemical qua

Chemical analyses, in parts per million, water year October 1965 

M

Date 

of 

collection

May 5 ............

Mean 

discharge

(cfs)

289 

3970 

2840 

2570

Silica 

(S102)

11

Iron 

(Fe)

Calcium 

(Ca)

7.4

Magnesium 

(Mg)

2.6

Sodium

(Na)

3.3 

3.3 

3.1 

1.9

Potassium 

(K)

0.6

Blcarbonate 

(HCOJ

62 

50 

47 

34

Carbonate 

(CO,)

0 

0 

0 

0

Sulfate 

(S0«)

3.0

Chloride 

(CD

1.2 

1.2 

.9 

.9

Fluoride

(F)

Nitrate 

(NO

0.
SACRAMENTO RIVER BASIN Continued

11-4215. YUBA RIVER AT MARYSVILLE, CALIF. Co

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

Day

1

70 

67

63 

61

52

51

44

44 

43

55 

49

62

54

65 

58

77 

68

83

78 

70

2

70 

67

62

60

51 

51

55 

49

63

55

57

75 

67

84

80 

72

3

69

67

62

61

51 

50

54 

49

62

55

58

76 

68

85

81 

73

4

69 

66

62

60

50 

50

55 

49

61 

56

59

77 

70

85

82

5

69 

66

62 

61

50 

50

56

50

62

55

60

78 

70

84

83

6

70 

67

62

60

50 

50

56

51

63

56

60

78 

68

85

80

7

71 

68

61 

60

50

55 

50

64 

56

60

75 

66

84

76

1

8

71 

68

62

60

49

56 

50

63

57

61

76 

66

84

76

9

71 

67

62 

60

53 

51

62 

57

62

75 

67

83

77

10

69 

65

60 

57

53 

51

60 

57

62

76 

68

84

77

11

69 

65

60 

58

53 

50

57

63

77 

69

81

76

12

tl

60 

59

52 

50

56

63

76 

68

84

74

13

69 

65

59 

58

56 

51

56

64

76

68

82

71

14

69 

64

58

57

57 

51

56

67

76 

68

82

71

15

65 

63

58 

57

57 

51

57

68

78 

68

83

70

16

65 

64

57

58 

52

57

68

78 

69

83

73

17

65 

62

57

48

57 

52

5B

68

77 

69

85

74

18

66 

62

57

48

56 

51

58

68

79

71

82

73

19

66

63

58

50

57 

51

58

69

Bl 

73

81

73

20

66 

63

57

50

58 

51

59

68

83 

73

81

73
LOCATION. Lat 39 

Sutter County. 

DRAINAGE AREA. 5 

RECORDS AVAILABLE 

REMARKS. Records

SACRAMENTO RIVER BASIN Continued

11-4217. FEATHER RIVER BELOW SHANGHAI BEND, NEAR YUBA 

'04'45", long 121°36'09", at gaging station north of Barry Road, approximately 3 mil

,337 square miles.

. Chemical analyses: October 1958 to June 1966 (discontinued), 

of discharge furnished by California state Department of Water Resources.

Chemical analyses, in parts per million, October 1965 

Date 

of 

collection

Jan. 7, 1966.....

May 5............

June 9. ..........

Mean 

discharge 

(eta)

3190 

3700 

4290 

13900

5240 

6020 

12100 

6300 

896

Silica 

(SiOa)

12

Iron 

(Fe)

Calcium

(Ca)

9.2

Magnesium

(Mg)

1.7

Sodium

(Na)

4.4 

4.8 

4.1 

3.7

4.6 

4.4 

2.7 

2.6 

3.8

Potassium

(K)

0.6

Bicarbonate 

(HCOJ

63 

66 

59 

40

60 

59 

36 

36 

59

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO,)

3.0

Chloride

(CD

1.2 

.8 

1.6 

1.2

2.2 

1.2 

.8 

.8 

1.1

Fluorlde

(F)

Ni

trat

(NO

0
SACRAMENTO RIVER BASIN Continued

11-4240. BEAR RIVER NEAR WHEATLAND, CALIF.

LOCATION.~Lat 39°00'00", long 121°24'20", near gaging station at bridge on U.S. Highway 99E, 1 mile s

from Rock Creek.

DRAINAGE AREA. 292 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Chemical analyses, in parts per million, water year October 1965 

Date

of 

collection

Mar. 10... .......

Apr. 7.... .......

June 9 ...........

Mean 

discharge

(eta)

14 

7.2 

11 

344

460 

678 

430 

26 

24

Silica 

(Si02)

11

Iron 

(Fe)

Calcium 

(Ca)

15

Magnesium 

(Mg)

7.9

Sodium 

(Na)

5.9 

5.9 

5.6 

3.7

3.6 

3.7 

3.4 

4.5 

4.4

Potassium 

(K)

0.7

Blcarbonate 

(HCOJ

104 

100 

91 

44

44 

42 

41 

70 

57

Carbonate 

(CO,)

2

1 

0 

2

0 

0 

0 

0 

0

Sulfate 

(S04 )

15

Chloride 

(CD

4.8 

3.8 

5.2 

2.7

3.0 

2.9 

2.8 

3.5 

3.7

Fluoride

(F)

Nitrate 

(NO,)

0.4
SACRAMENTO RIVER BASIN Continued

11-4250. FEATHER RIVER AT NICOLAUS, CALIF

(Irrigation network station)

LOCATION. Lat 38°54'00", long 121°35'00", at gaging station at highway bridge at Nicolaus, Sutter C

DRAINAGE AREA (revised). 5,921 square miles.

RECORDS AVAILABLE. Chemical analyses: March 1951 to June 1966 (discontinued).

Water temperatures: March 1951 to September 1958, November 1959 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 87°F Aug. 4, 6, 7; minimum, 38°F Dec. 23. 

EXTREMES, 1951-58, 1959-66. Water temperatures: Maximum, 94°F July 21, 1961; minimum, freezing poin

Chemical analyses rts per million, October 1965 to 

Date 

of 

collection

Feb. 11..... .....

June 9. ..........

Mean 

discharge 

(eta)

3110 

3950 

4600 

15900

5910 

6220 

12200 

5980 

840

Silica 

(S102)

11

Iron 

(Fe)

Calcium 

(Ca)

7.4

Magnesium 

(Mg)

2.6

Sodium 

(Na)

4.0 

4.3 

4.1 

3.7

4.8 

4.3 

2.8 

2.5 

3.8

Potassium 

(K)

0.7

Blcarbonate 

(HCO,)

63 

64 

61 

40

58 

58 

38 

36 

58

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(SO.)

3.0

Chloride 

(Cl)

1.1 

1.2 

1.5 

2.4

2.5 

1.8 

1.1 

.6 

1.2

Fluorlde 

(F)

Ni

trat

(NO

0
PACIFIC SLOPE BASINS IN CALIFORNIA

r- r- M fss ss ss ss as as ss ss ss ss ss^ss 33t133i-c33 33 33 33 33 33 33 33 33^33 ' E S.S 6 6^ ' S S ^6 6 >-6 ''' 6 S6 66 6B 66 66 ' £6^66
SACRAMENTO RIVER BASIN Continued 

11-4270. NORTH FORK AMERICAN RIVER AT NORTH FORK 

LOCATION. Lat 38°56'15", long 121°01'25", temperature recorder at gaging station, o

North Fork Dam, Placer County, 2 miles upstream from Middle Fork, and 4 miles no

DRAINAGE AREA. 342 square miles.

RECORDS AVAILABLE. Water temperatures: November 1959 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F on several days during Augus

to February.

EXTREMES, 1959-66. Water temperatures: Maximum, 80"F on several days during Augus

43°F on many days during January 1961, January and February 1964, and December 1

Temperature (°F) of water, water year October 1965 t

Month

October

Maximum ....

Minimum ....

November 

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January 

Maximum ....

Minimum .... 

February 

Maximum ....

Minimum .... 

March 

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum .... 

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

66

65

61

60

49

49

43

43 

43

43 

47

46

58

55

60

58

66

64

76

74

78

77

74

74

2

66

65

60 

60

49

49

43

43 

43

43 

46

46

57

55

60

59

66

64

75

73

79

78

74

74

3

65

65

49

49

43

43 

43

43 

46

45

56

55

61

59

66

64

75

73

80

78

74

74

4

65

64

49

48

43

43 

43

43 

46

45

56

55

60

58

66

65

74 

73

80

79

74

74

5

64

64

48

48

43 

44

48

46

57

55

61

59

67

65

74

73

80

79

74

74

6

64

64

48

48

43 

45

48

46

57

56

61

59

67

66

75

73

80

79

74

74

7

65

64

48

48

44 

45

48

47

57

56

61

59

67

67

74

73

80

79

74

73

8

65

64

48

47

45 

45

50

48

57

56

61

59

68

66

74 

73

80

79

74

73

9

65

64

47

47

45 

45

50

49

57

56

62

60

__

74

73

80

79

73

73

10

64

64

47

47

45 

45

50

49

57

55

61

60

74

73

80

79

73

73

11

64

64

47

47

46 

45

49

49

56

54

60

57

_

74

73

79

79

73

73

12

64

64

47

47

46 

44

49

49

55

54

60

58

74

73

79

79

73

72

13

64

64

47

47

45 

44

50

49

55

54

61

59

__

74

73

79

79

72

72

14

64

63

47

46

45 

44

51

50

56

55

62

60

74

73

79

79

72

71

15

63

63

46

46

45 

44

52

51

57

55

63

61

73

71

75

73

79

79

71

70

Day

16

63

63

46

46

44

51

50

59

57

62

62

74

72

75

74

79

79

70

70

17

63

63

46

46

44

50

50

60

58

64

62

75

73

75

79

79

70

70

18

63

63

46

45

45

50

50

58

57

65

63

76

74

76

79

78

70

70

19

63

62

45

45

44

51

49

58

56

66

64

76

74

76

79

78

70

70

20

63

62

56

54

45

45

43 

44

50

49

57

56

67

65

76

74

76

79

78

70

70
SACRAMENTO RIVER BASIN Continued 

11-4334. CANYON CREEK NEAR GEORGETOWN, CAL

LOCATION. Lat 38°56'03", long 120"52'21", temperature recorder at gaging station, on 

yon, and 2.6 miles northwest of Georgetown, El Dorado County. 

DRAINAGE AREA. 12.5 square miles. 

RECORDS AVAILABLE. Water temperatures: July to September 1966.

rature (°F) of water, July to September 

July

Maximum

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

72

64

65

58

2

73

65

65

58

3

73

65

ft5

58

4

72

63

6ft

59

5

72

63

66

59

6

72

ft?

66

60

7

72

ft3

64

60

8

72

63

63

57

9

72

ft3

63

56

10

72

ft3

63

56

1 1

71

ft 3

62

56

12

72

63

ftO

55

13

71

63

ftO

55

14

71

6?

59

53

15

71

63

ftO

53

Day

16

71

63

ftO

54

17

72

ft*

ftO

54

18

71

65

ftO

58

19

70

ft?

ftl

58

20

69

ftO

61

56

11-4395. SOUTH FORK AMERICAN RIVER NEAR KYBURZ, 

LOCATION. Lat 38°45'49", long 120°19'39", temperature recorder at gaging station on 

downstream from Silver Fork of South Fork, and 1.9 miles southwest of Kyburz, El 

DRAINAGE AREA. 193 square miles. 

RECORDS AVAILABLE. Water temperatures: August to September 1966.

Temperature (°F) of water, August to Septembe

Month

August 

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

- , _ 

1

 

 

 

2

__

6ft

58

3

66

58

4 5 ; 6

74

64

67

59

74 72

64 62

66

60

65

61

Day

I 7- B

72

62

66

71

62

65

60 58

9

71

6?

64

59

101112

72

63

64

58

72

63

63

58

72

63

61

56

13

72

63

58

55

 i i

14 15 16

71

63

59

52

72

63

59

52

72

63

60

54

 T ~~ 

17

73

64

60

55

18

73

64

19

71

64

59 61

57 57

20

70

61

62

57
SACRAMENTO RIVER BASIN Continued

11-4455. SOUTH FORK AMERICAN RIVER NEAR LOTOS, CA

LOCATION. Lat 38°49'05", long 120°56'45", temperature recorder at gaging station on left hank 0.4 mil

Lotus, El Dorado County, and 3.3 miles northwest of Coloma. 

DRAINAGE AREA. 673 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1963.

Water temperatures: December 1959 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F Aug. 8; minimum, 38°F Jan. 26-30. 

EXTREMES, 1959-66. Water temperatures: Maximum, 85°F July 20, 1960; minimum, 34°F Jan. 2-6, 1960, De

Chemical analyses, in parts per million, October 1965 to 

Date 

of 

collection

Mean 

discharge 

(cfs)

119 

2150 

1260 

1700

Silica

(S1O,)

9.2

Iron 

(Fe)

Calcium 

(Ca)

3.4

Magnesium 

(Mg)

0.4

Sodium 

(Na)

3.7 

2.7 

3.1 

1.8

Potassium 

(K)

0.6

Blear - 

bonate 

(HCOJ

48 

25 

27 

13

Carbonate 

(COJ

o

Sulfate 

(SO,)

1.0

Chloride 

(Cl)

2.9 

1.5 

2.1 

1.4

Fluorlde 

(F)

Nitrate 

(NOJ

0.1
SACRAMENTO RIVER BASIN Continued

11-4455. SOUTH FORK AMERICAN RIVER NEAR LOTUS, CAL

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum ....

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

Day

1

58

52 

51

42 

42

40 

39

43 

42

53 

51

57 

53

64 

58

66

58

67 

63

64 

58

2

58

52 

51

41

40 

39

42

53 

51

57 

53

64 

58

58

68 

62

64 

58

3

57

54 

47

40 

40

42

51

57 

55

63

58

57

65 

62

64 

58

4

58

52 

51

40 

39

41

51

57 

56

64 

57

60

66

61

65 

59

5

57

52 

51

40 

39

52

57 

56

63 

57

61

65

60

65 

62

6

57

51 

50

41

40

52

58 

56

64

59

62

64 

60

65

63

7

57

51

50

41 

40

52

58 

56

65 

60

59

68

60

65 

61

8

58

52

50

42

40

54

58 

56

66 

59

58

71 

64

65 

60

9

58

52 

48

41 

40

53

57 

56

66

59

58

70 

64

66

60

10

58

48 

48

41

40

53

57 

55

66

60

57

66

60

65

60

11 12

58

55

49 

48

41 

40

53

56

55

67

60

61

66

59

65 

60

57 

55

49 

49

41

40

55 

53

59 

55

68 

61

59

66

60

64 

61

13

57 

55

50 

49

41 

39

48

56

53

59 

55

68 

64

58

66

59

64 

60

14

56 

55

51 

50

41

40

48

56

53

58 

55

70 

64

56

66 

59

63 

59

15

56 

55

52 

51

41 

39

47

58

54

59 

55

70 

63

56

66 

62

62

58

16

55 

54

52 

52

41 

39

47

59 

55

60 

55

67 

62

56

67 

62

63

58

17

54 

52

53 

52

41 

39

47

58 

56

60 

56

66

60

56

67 

61

63 

58

18

54 

52

53

53

41

40

47

59 

56

60 

56

66

60

60

67

60

63 

60

19

55 

52

53 

52

41

40

48

56 

54

61

56

67 

60

67 

60

66

60

64 

61

20

55 

53

52 

51

42

40

48

55 

53

61 

57

67 

64

67

59

66 

59

64 

61
LOCATION. Lat 38°38'12", long 121°13'10", at dam, approximately 1.5 mil 

RECORDS AVAILABLE. Chemical analyses: November 1958 to September 1966. 

REMARKS. Records of discharge given for American River at Fair Oaks.

Chemical analyses, in parts

SACRAMENTO RIVER BASIN Continued 

11-4464. AMERICAN RIVER AT NIMBUS DAM, NEAR FAIR OAKS

st of Fair Oaks, Sacramen

October 1965 to 

Date 

of 

collection

Feb . 7 ...........

June 10. .........

Mean 

discharge

(cfs)

2530 

1740 

3390 

1750

1780 

1760 

2440 

960 

954

Silica 

(S102)

9.5

Iron 

(Fe)

Calcium 

(Ca)

7.2

Magnesium 

(Mg)

2.3

Sodium

(Na)

1.7 

2.1 

2.7 

2.7

2.9 

2.9 

2.5 

2.8 

2.8

Potassium 

(K)

0.8

Bicarbonate 

(HCO.)

25 

18 

28 

28

32 

34 

32 

32 

30

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

4.0

Chloride 

(CD

l.l 

.9 

1.4 

1.9

1.5 

2.3 

2.2 

1.6 

1.4

Fluoride 

(F)

Nitrate 

(NO

0.3
SACRAMENTO RIVER BASIN Continued 

11-4465. AMERICAN RIVER AT FAIR OAKS, CAL

LOCATION. Lat 38°38'08", long 121°13'36", temperature recorder at gaging station on 

Dam, 2.4 miles east of Fair Oaks, Sacramento County, 8.1 miles downstream from So

DRAINAGE AREA. 1,888 square miles. 

RECORDS AVAILABLE. Chemical analyses: January to December 1906, March 1951 to Sept

Water temperatures: March 1951 to September 1958, November 1959 to September 1966

EXTREMES, 1965-66. Water temperatures: Maximum, 69°F Sept. 30; minimum, 46"F on se

EXTREMES, 1951-58, 1959-66. Water temperatures: Maximum (1951-58, 1959-64, 1965-66

ing point Nov. 25, 26, 1957, Nov. 25-29, 1958.

Temperature (°F) of water, water year October 1965 to 

October

Minimum ....

November

Maximum ....

Minimum ....

December

Minimum .... 

January 

Maximum ....

Minimum .... 

February 

Maximum ....

Minimum .... 

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August 

Maximum ....

Minimum .... 

September

Maximum ....

Minimum ....

Day

1

63

57

56

55

55 

49

49 

47

48

46

55

54

59

56

61

58

59

58

61

60

66

2

63

56

55

55

55

48

48

48

46

55

54

58

57

61

58

60

59

60

66

3

63

56

55

55

55

48

46

55

54

58

56

61

58

60

59

61

66

4

62

56

55

 is

55

48

46

i>5

54

59

56

60

58

60

58

62

66

5

62

56

56

55

54

48

47

55

54

59

57

60

57

60

58

62

66

6

63

56

56

54

48

47

55

54

60

57

58

57

60

59

62

66

7

63

56

56

49

48

56

54

60

58

60

57

61

59

62

67

64

8

63

56

56

50

48

55

54

59

57

59

57

61

59

62

67

65

9

63

57

56

50

49

b5

54

60

57

60

57

60

59

62

66

65

10

62

57

56

49

49

56

54

59

58

61

58

62

60

62

66

64

1 1

61

56

56

49

49

56

54

59

58

61

58

62

59

63

66

64

12

62

57

56

53

49

48

56

54

60

58

62

59

62

60

62

66

63

13

62

57

56

53

53

50

48

56

54

59

57

60

58

62

60

63

66

63

14

62

56

56

S3

52

49

49

57

55

60

57

60

58

61

60

63

65

63

15

61

56

56

52

52

50

49

57

55

60

57

60

58

62

60

63

65

63

16

60

57

57

52

52

50

49

57

56

60

57

63

59

62

59

64

63

65

63

17

59

58

57

52

52

49

49

56

55

60

59

62

59

61

60

64

65

63

18

60

58

58

5?

51

49

48

59

56

60

58

60

58

62

60

64

65

63

19

60

58

57

5?

51

49

49

57

56

60

58

59

56

62

60

65

65

63

20

58

58

57

52

52

49

49

57

55

60

58

59

57

62

60

65

66

64
SACRAMENTO RIVER BASIN Continued

LOCATION. Lat 38°34'05", long 121°25'20", at site of f

from mouth. 

DRAINAGE AREA. 1,889 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to June 1966 (discontinued). 

REMARKS. No discharge records available.

11-4470. AMERICAN RIVER AT SACRAMENTO, CALIF

mer gaging station at H Street Bridge, east 

Chemical analyse in parts per million, October 1965 

Date 

of 

collection

Feb. 7... ........

Apr. 8....... ....

June 10.. ........

Mean 

discharge 

(cfs)

Silica 

(S103)

9.3

Iron 

(Fe)

Calcium 

(Ca)

7.8

Magnesium 

(Mg)

2.1

Sodium 

(Na)

1.9 

2.6 

2.4 

2.7

3.4 

3.3 

2.8 

3.6 

3.2

Potassium 

(K)

0.8

Bicarbonate 

(HCOJ

26 

24 

28 

28

32 

34 

32 

31 

30

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S0«)

5.0

Chloride 

(Cl)

1.3 

1.4 

1.8 

1.9

2.3 

2.7 

2.4 

2.1 

1.9

Fluorlde 

(F)

Nitrate 

(NO

1.
PACIFIC SLOPE BASINS IN CALIFORNIA

OI

H

0 0!

:>, fe -m

 P -O 01

 H H CO H 

O CO

 H O O H

CO S5

bD fl O< <U 

T3 CD D.Q

IH HO)

m b H B

o o

<U CO'0

IH .-PO

 p B cd CM

a 0) <l) 4->

IH cd B <U 

<H i-s .- -,H IH

S -co to in in a

eg CO CM Cft -H <y 

0) CM rt cd~ 0

 P - C CO - - > 

10 H 3 CO tO B >,-H 

0, N 1-3 H 3rH bO 3 a) B 'H

'"^ fe lHt° <u .-|'"'

O > & --P *3 tD B P 

O -H ^ >> OJ -H

3s flaSJ 28

 p B B -H cd to 0> . .,

tO .- T( CO CM IH

CO H H 3 01 C. c,

oj cd B B -O Q 

bDB S a.^HCMtO TT 

cd >-5 fi B tD 01 U) ID

cd ^ +J fa 1-3 ..in rt O H

 p o t^ in P

HO HtDOl- rt -HO-O

CMS 4->d>Bc4 pcdS -.Q 

H - S-S**" S-HX3

bO' <DO,rHO Z-*

O »p,CQ(Qcd-0] "OrH

mm P 3 s H 3~ 3-p

O -iHrHPtOalB -cdto^HO)

CO 3 0) 0) H l*a rt B 0> td 

oOlHrHHlH<U T30)H IH

cdB <U 0-PO-ri-POl-p 

J|OJ3 Ocd^Xcd^H«>

. t-t -l<U>-llH l^lHCi)

B X < B H H 1

B <-pa -C a -Ban

H J<Q(D-Ha.H-Ha^.HM

to

01

H

IH 

£

a

ra

p

CO

Ol

H

IH

<U

O

IH 

cd

IH

0) 

rt

0) 

 p 

cd

<H

O

IH

cd 

IH

EH

£

Q

_

§,

S

o

CO

o

OI

00 

OI

OI

-o

OI

OI

OI 

OI

OI

o

OI

o

CO

£

-0

2

CO

2

o

0

00

-o

«

 *

CO

OI

-

5

! ! ?

! 55

1 1 ri 5S

1 ^^)

1 orI 0>0-

1 55

! S 5

! ^5

| ^ 5.

! ^ !

! S5

I S 5

1 £ 5

1 r- -j1 S5

, m u

!S5

1^3

1 u^cc

! ££

i i -i

i i -j

i : 5

1 1 J

1 1 4

October Novembe Decembe

5 ! £ 15! 25!

5 I ° 322 S ! 3

5^^ 32 ! ^P!5

r-a-r, -v*~ r,^

5^ ! 3S? *SS

m-nm mo- m 0- 0

.n~« 0,<00, ^^0

SSS ! ! £ 2?^

SSS !Sr? r^3

5 ,' S 3 S ! p^ ^ 3

5^S 32! £££

5^!? "J^1 ~?^

S S ! ! '5 S ^ ^ S

55^33! ?^S

55£ 3S3 ? ! S

Ch<D,n INJODI rj« rf

»-- *3 m JO S

55?; ss^ sis

Mt> 0 rs,«x, m -r,orJ 5 in 3 ! S ! ~ 3

55~ 132 ~"S

ooo-o «o.oo ~r^r53S ^S3 £~3

5 5~ ! JiS ! S3

5 ° S S S ° ! ° !

^5S SSS SSS

5 S5 ! ! S SS3

53»r> in3S 3|5

||| ||| i||
SACRAMENTO RIVER BASIN Continued

11-4475. SACRAMENTO RIVER AT SACRAMENTO, CALIF. 

Temperature (°F) of water, water year October 1965 to 

November .....

December .....

January. .......

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

September .....

Day

1

59

49

-

68

2

57

48

46

69

3

57

48

45

73

4

5B

48

44

5

58

49

-

73

6

_

48

47

70

7

_

47

48

69

8

58

47

48

68

9

57

47

~

69

10

57

48

47

1 1

57

47

48

12

56

49

47

68

13

_

49

47

67

14

55

49

47

68

15

58

47

48

69

16

56

48

48

68

17

56

47

47

70

18

56

46

69

19

54

46

46

68

20

45

45

69

2

5

4

4

6
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4475. SACRAMENTO RIVER AT SACRAMENTO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

lit.

12..

13..

14..

1$..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6».

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

2$..

26..

27..

28..

29*.

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

15400

15200

14200

14000

14200

13700

12800

13700

13700

13900

13500

13200

13100

13000

12900

13300

13700

13900

14300

14400

14600

14700

14400

14200

13900

13800

13900

14000

14200

14200

14200

432200

Suspended sediment

Mean

concentration

(ppm)

38

36

36

36

41

42

42

42

41

39

37

35

36

40

32

36

37

39

56

36

43

40

39

38

38

34

32

32

32

34

37

--

Tons

per 

day

1580

B 1480

1380

1360

1570

B 1550

B 1450

B 1550

B 1520

B 1460

B 1350

1250

B 1270

1400

1110

1290

B 1370

1460

2160

1400

1700

1590

B 1520

B 1460

1430

1270

1200

B 1210

1230

B 1300

B 1420

44290

JANUARY

31000

29300

28000

26800

27600

37200

43600

47100

51300

53600

52700

49600

45200

40900

37200

34800

33500

32500

31600

30600

29600

29000

21500

28100

27600

27500

27500

26000

26100

26700

29100

1070600

200

153

123

118

230

467

1120

714

420

388

336

265

242

199

169

182

161

162

157

145

108

93

120

112

97

118

120

100

97

105

113

B 16700

12100

9300

8540

B 17100

46900

132000

90800

B 58200

56200

47(00

35500

29500

22000

17000

17100

14600

14200

13400

12000

8630

7280

9230

8500

7230

8760

8910

7240

B 6840

7570

8880

760010

NOVEMBER

Mean

discharge

(cfs)

14100

14400

14600

14400

14300

14000

13800

13800

14000

14000

14000

14100

14600

15300

17100

20800

26100

25400

28600

31300

28900

26100

24400

23400

23800

25500

26800

26300

26000

25400

605300

Suspended sediment

Mean

concentration

(ppm)

40

48

37

34

36

36

33

31

34

32

34

32

33

42

53

112

402

697

354

270

237

146

108

112

82

82

88

90

95

83

-

Tons

per 

day

1520

1870

1460

1320

1390

B 1360

B 1230

1160

1290

1210

1290

1220

B 1300

1740

2450

6290

28300

47800

27300

B 22800

18500

10300

7120

7080

5270

5650

B 6370

6390

6670

5690

233340

FEBRUARY

31200

30800

31600

32800

32900

35900

38600

39900

39700

36700

32700

29400

27000

24500

22600

21600

20600

19800

19300

18700

19700

20400

19800

19000

19900

21800

24100

25200

--

756200

133

130

104

150

150

384

411

313

270

198

176

161

172

118

97

93

92

91

109

83

80

83

88

70

74

89

95

95

--

-

11200

10800

8870

13300

13300

37200

42800

33700

28900

19600

15500

12800

12500

7810

5920

B 5420

B 5120

4860

5680

4190

4260

4570

4700

3590

B 3980

5240

6180

6460

_

338450

DECEMBER

Mean 

discharge

(cfs)

23300

20900

19500

19100

20600

21700

22100

22200

22200

22600

22900

23000

23300

23500

23600

23200

23100

22800

22600

22600

21700

21000

20600

20400

20600

22200

22400

22100

24200

29700

31200

700900

Suspended sediment

Mean

concentration

(ppm)

60

59

62

59

77

76

67

71

62

66

47

52

53

63

80

79

63

58

56

53

59

54

57

62

68

75

94

87

91

119

216

Tons

per 

day

3770

3330

3260

3040

4280

4450

4000

4260

3720

4030

2910

3230

3330

4000

5100

4950

3930

B 3570

3420

3230

3460

3060

3170

B 3410

B 3780

4500

5690

5190

5950

9540

18200

141760

MARCH

23300

22000

20800

18700

17600

16700

16400

16600

16900

17800

19700

23100

25100

25600

27800

28300

28900

27900

26700

26600

26400

27500

27600

26800

25900

25800

25600

25000

24900

25500

26500

734000

116

80

62

60

55

53

52

52

7300

4750

3480

3030

2610

2390

2300

2330

43 ' 1960

49

63

81

137

146

136

115

99

94

85

74

65

65

68

67

66

50

48

53

58

61

80

-

2350

3350

5050

9280

10100

10200

8790

7720

7080

6130

5310

4630

4830

5070

4850

4620

3480

3320

3580

3900

4200

5720

153710

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4475. SACRAMENTO RIVER AT SACRAMENTO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

Total

Mean

discharge

(cfs)

26500

27700

28500

28500

27600

26300

25400

24200

2)200

22500

25900

28900

29900

28600

24100

21700

20100

19900

20700

20200

18600

16400

15200

14700

14000

13700

15000

15900

14400

13200

651500

10300

10000

10300

10500

10800

10700

10600

10400

10600

10700

11100

11200

11000

11500

12000

13000

13000

13200

13400

13200

12800

12100

12000

12200

12100

11400

11500

11500

11800

11900

12300

359100

discharge

load for v

APRIL

Suspen

Mean

concentration

(ppm)

95

110

114

110

109

92

76

79

76

69

86

108

94

81

78

84

88

71

59

61

67

73

92

113

71

48

55

73

72

53

JULY

27

34

42

36

28

31

34

34

42

57

51

58

52

43

50

44

43

43

37

38

48

47

57

66

55

54

38

32

33

40

54

for year

ear (tor

ded sediment

Tons

per 

day

6800

8230

8770

B 8460

8120

6530

5210

5160

4760

4190

6010

8430

7590

6250

5080

B 4920

4780

3810

3300

3330

3360

3230

3780

4480

2680

1780

B 2230

3130

2800

1890

149090

751

918

1170

1020

816

896

973

955

B 1200

1650

1530

1750

1540

1340

1620

1540

1510

1530

1340

1350

1660

1540

1850

2170

1800

1660

1180

994

B 1050

1290

1790

42383

(cfs-days) . .

s)..........

Mean

discharge 

(cfs)

12600

12200

12000

12600

13200

14300

15100

15500

15900

15400

17600

19500

20300

19400

18900

18300

17300

16100

15200

14600

13700

13200

12500

12000

11600

10800

10400

10400

10300

9810

9640

440350

12200

12500

12500

12200

11600

11600

11500

12200

12200

12700

12900

13200

13300

13700

13700

14000

14000

13300

12400

12000

11800

11900

11500

11200

11200

11000

11300

11500

11800

11800

12300

381000

MAY

Suspen

Mean

concentration

(ppm)

69

60

61

60

55

58

67

75

71

68

74

80

91

99

80

77

73

65

61

61

60

54

53

48

43

34

30

36

46

62

62

~

AUGUST

50

48

32

28

35

43

42

37

30

30

30

34

26

26

30

30

26

26

36

26

34

34

36

51

62

54

47

43

95

68

69

ded sediment

Tons

per 

day

2350

1980

1980 !

2040

1960

B 2240

2730

3140

3050

B 2830

3520

B 4210

B 4990

5190

4080

3800

3410

2830

2500

2400

2220

1920

1790

1560

1350

B 991

842

1010

1280

1640

1610

77443

1650

1620

1080

922

B 1100

1350

1300

1220

988

1030

1040

1210

934

962

1110

1130

983

9S4

1210

842

1080

1090

1120

1540

1«70

1600

1430

1340

3030

2170

2290

41175

Mean

discharge

(cfs)

*610

9290

9140

9050

9140

9390

9610

9750

10000

10000

9990

9610

9120

8480

8120

8470

8670

9360

9720

9860

9990

9650

9780

10100

10200

10500

10400

10200

10200

10100

287500

S

12600

12700

12300

12200

11700

11600

11700

11800

11800

11500

11800

11300

11300

10900

10900

10700

10700

10300

10700

10500

10300

10200

10100

10OOO

9950

9890

9910

9750

9680

9680

328460

JUNE

Suspen

Mean

concentration

(ppm)

58

55

51

38

69

65

46

40

42

42

54

65

63

50

42

31

28

27

30

33

27

24

21

26

37

47

44

37

35

24

-

EPTEMBEf

82

89

77

79

87

83

74

78

68

66

66

65

58

67

54

42

40

41

35

35

40

42

44

45

45

46

44

36

23

23

ded sediment

Tons

per 

day

1500

1380

1260

929

1700

1650

1190

1050

1130

1130

1460

1690

1550

1140

921

709

655

682

787

879

728

625

555

709

1020

B 1330

1240

1020

964

654

32237

2790

3050

2560

B 2600

2750

2600

2340

2490

2170

B 2050

B 2100

1980

1770

1970

1590

1210

1160

1140

1010

992

1110

1160

1200

B 1220

B 1210

B 1230

1180

948

601

601

50782

6747110

2064670

B Computed from estiraated-concentration graph.
SACRAMENTO RIVER BASIN Continued 

11-4475. SACRAMENTO RIVER AT SACRAMENTO, CALIF. 

Periodic determinations of suspended-sediment discharge and particle size, w

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; U, 

P, pipet; S, sieve; V, visual accumulation tube; W, in di

Date of collection

Feb. 18.... ........

Apr. 5......... ....

Sept. 7.. ..........

Time 

(24 hour)

1330 

1400 

1330 

1010 

1040

0855 

1817 

1952 

0140 

1000

Water 

temperature

48 

45 

48 

50 

60

64 

68 

68

68

Sampling 

point

Discharge 

(cfs)

43700 

29800 

D 19800 

D 19000 

D 27600

D 9610 

D 11500 

D 11500 

D 11200 

D 11700

Sediment 

concentration 

(ppm)

1210 

92 

63 

62 

112

40 

40 

41 

26 

75

Sediment 

discharge 

(tons per day)

142800 

7400 

3370 

3180 

8350

1040 

1240 

1270 

786 

2370

P

0.002

28

0.004

35

0

Particle-size analyses of bed material, water year October 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, 

P, pipet; S, sieve; V, visual accumulation tube; W, in dis

Date of collection

Time 

(24 hour)

1205

Water 

temperature 

(°F)

69

Sampling 

point

Discharge 

(cfs)

D 11700

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

P

0.062

18

0.125

40

0

D Daily mean discharge.
SACRAMENTO RIVER BASIN Continued

11-4476.5. SACRAMENTO RIVER AT FREEPORT, CAL

(International Hydrological Decade River Stat

LOCATION. Lat 38°30'15", long 121°30'25", at drawbridge at Freeport, Sacramento County, approximate

RECORDS AVAILABLE. Chemical analyses: June 1960 to September 1966.

Water temperatures: June 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 71°F on several days during June; minimum, 42°F De

EXTREMES, 1960-66. Water temperatures: Maximum, 76°F June 16, 17, 1961; minimum, 41°F Jan. 24-27, 

REMARKS. Records of discharge data given for Sacramento River at Sacramento. No appreciable inflow 

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Seot. 12.........

Mean 

discharge 

(eta)

13700 

14100 

26000 

28000 

39700 

16600

26300 

12000 

9750 

11400 

12400 

11300

Silica 

(S10a)

15 

16 

18 

18 

16 

19

Iron 

(Fe)

0.01 

.01 

.00 

.01 

.02 

.00

Calcium 

(Ca)

10 

12 

17 

14 

13 

16

Magnesium 

(Mg)

3.6 

5.4 

7.2 

5.6 

6.7 

11

Sodium

(Na)

10 

7.5 

7.0 

9.0 

7.1 

9.7

4.4 

9.4 

15 

11 

12 

19

Potassium 

(K)

0.8 

1.1 

1.0 

1.0 

1.1 

1.2

Bicarbonate 

(HCOj)

73 

68 

62 

71 

60 

80

50 

63 

89 

79 

80 

118

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

2 

0 

0 

0

SuUate 

(SO,)

;;

6.0 

10 

15 

10 

10 

13

Chloride 

(CD

5.9 

4.0 

4.1 

4.3

6.0

2.0 

5.7 

10 

6.6 

6.7 

14

Fluoride 

(F)

::

0.1 

.1 

.2 

.1 

.1 

.2

N

tra

(N

0
PACIFIC SLOPE BASINS IN CALIFORNIA

EG^EE^EE E E SE E E E E E E E E EG

* I 1.8 1 IJ E 1 ^ 1 >-£ I II EE EE 11 II gi^ss a.sg a:s alls g'ais-s'ais-'ais i:s u 'i:s i:=
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued 

11-4490.1. HIGHLAND CREEK BELOW HIGHLAND CREEK DAM, NEAR KELSEYVILLE, CALIF.

LOCATION. Lat 38°56'54", long 122°54'03", at outlet of Highland Creek Dam, 600 feet upstream from

gaging station, and 4.0 miles southwest of Kelseyville, Lake County. 

DRAINAGE AREA. 14.2 square miles.

RECORDS AVAILABLE. Sediment records: December 1965 to September 1966. 

EXTREMES, December 1965 to September 1966. Sediment concentrations: Maximum daily, 182 ppm Jan. 5;

minimum daily, no flow on many days.

Sediment loads: Maximum daily, 270 tons Jan. 5; minimum daily, 0 ton on many days. 

REMARKS. No flow Apr. 23, 24, June 16-21, June 29 to July 19, July 21 to Aug. 30, Sept. 17-30.

Suspended sediment, December 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4 . 

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

Suspended sediment

Mean 

concentration 

(ppm)

per 

day

NOVEMBER

Mean 

discharge

(cfs)

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

Per 

day

DECEMBER

Mean 

discharge

(cfs)

3.8

3.7

3.6

3.4

3.2

2.7

2.7

2.5

2.5

2.5

2.5

5.6

5.6

3.8

3.0

2.3

1.6

1.2

1.9

2.5

2.5

2.5

2.3

95

94

37

25

323

294

96

110

1141.9

Suspended sediment

Mean 

concentration 

(ppm)

_

_

. 

. _

_

_-

_

_-

55

__

26

U9

_-

-

Tons 

per 

day

0.2

.1

.1

.1

.1

.1

.1

.1

T

"

T

.1

T

T

T

T

T

T

T

T

T

T

T

1.3

K. 12

5.0

2.4

1C 24

S 120

18

16

T

S Commuted by subdividing da

T Less than 0.05 ton.

K Computed from estimated-cc sntration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4490.1. HIGHLAND CREEK BELOW HIGHLAND CREEK DAM, NEAR KELSEYVILLE, CALIF. Continued 

Suspended sediment, December 1965 to September 1966 Continued

Day

1..

2..

3..

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..

Total

1..

2..

3..

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..

Total

JANUARY

Mean 

digcharge

(cfs)

57

38

38

398

550

490

131

47

36

28

23

18

16

14

13

11

9.0

8.5

7.5

6.3

5.9

5.6

5.6

4.6

4.1

4.1

3.8

3.0

104

245

72

2397.2

Suspended sediment

Mean 

concentration 

(ppm)

63

182

110

90

72

Tons 

per 

day

7.7

4.8

4.3

K 77

270

146

32

11

7.6

5.4

4.3

 j 3.2

57

~

__

104

97

~

2.7

2.2

1.8

1.3

1.0

.8

.6

.4

.3

.2

.2

.1

.1

T

T

T

.8

K 64

19

668.9

APRIL

3.8

4.1

4.5

3.8

2.3

1.6

1.4

1.9

3.0

5.2

4.5

5.6

4.1

3.2

2.3

1.6

2.3

3.4

3.8

3.4

3.4

5.2

0

0

.2

.7

1.6

2.1

1.9

1.9

82.8

--

__

__

__

2

~

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

T

T

T

T

T

T

 

0.4

FEBRUARY

Mean 

discharge 

(cfs)

123

70

84

269

130

77

48

36

29

24

20

18

16

14

14

12

12

12

29

22

17

16

IB

21

24

26

22

20

~

1225

Suspended sediment

Mean

tration 

(ppm)

94

82

73

__

52

68

__

__

48

__

-

per 

day

31

15

12

K 52

30

14

6.7

6.6

5.1

3.9

3.2

2.7

2.4

1.9

1.9

1.6

1.6

1.5

4.3

3.0

2.1

1.7

1.9

2.0

2.3

3.0

2.4

1.9

__

__

--

217.7

MAY

1.4

1.2

1.1

1.0

.8

.8

.7

.5

.4

.5

.4

.4

.4

.4

.4

.5

.5

.6

.5

.5

.4

.3

.4

.3

.3

.2

.2

.2

.2

.2

.2

15.9 0.1

MARCH

Mean 

discharge 

(cfs)

18

17

15

13

12

11

11

11

14

19

15

Suspended sediment

Mean

tration 

(ppm)

__

--

__

_-

__

14

14

12

13

14

12

12

12

11

11

11

11

10

8.0

4.5

3.0

1.9

2.5

2.3

2.1

337.3

--

_

_

2

_

_-

-

Tons 

per 

day

1.7

1.4

1.2

.9

.8

.6

.6

.4

.8

1.3

.8

.8

.6

.5

.5

.5

.3

.3

.3

.2

. 1

.1

.1

.1

T

T

T

T

T

T

T

15.0

JUNE

0.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

.1

.4

.4

.3

.3

.3

.2

0

0

"

4.9

! T

: T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

0

0

0

0

T

T

T

T

T

T

T

0

0

0.0

T Less than 0.05 ton.

K Computed from estimated-concentration graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4490.1. HIGHLAND CREEK BELOW HIGHLAND CREEK DAM, NEAR KELSEYVILLE, CALIF. Continued 

Suspended sediment, December 1965 to September 1966 Continued

Day

1..

2..

3..

<t..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

JULY

Mean 

discharge

(cfs)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0.1

Suspended sediment

Mean

tration 

(ppm)

Tons 

per 

day

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

T

0

0

0

0

0

0

0

0

0

0

0

0.0

AUGUST

Mean 

discharge

(cfs)

0

0

0

0

0

0

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

0.2

Suspended sediment

Mean 

concentration

(ppm)

Tons 

per 

day

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

T

0.0

SEPTEMBER

Mean 

discharge

(cfs)

0.3

 4

.5

.5

.1

.1

.1

.1

.1

.2

.1

.2

.2

.3

.5

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

--

3.8

Suspended sediment

Mean 

concentration

(ppm)

Tons 

per 

day

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.0

Total discharge for period Dec. 1 to Sept. 30 (cfs-days). 

Total load for period Dec. 1 to Sept. 30 (tons)..........

5209.1

1102.1

T Less than 0.05 ton.
SACRAMENTO RIVER BASIN Continued 

11-4490.1. HIGHLAND CREEK BELOW HIGHLAND CREEK DAM, NEAR KELSEYV

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Jan. 31.......... .

Time 

(24 hour)

1300 

1530 

0800

Water 

temperature

(°F)

48 

48 

47

Sampling 

point

Discharge 

(cfs)

495 

485 

86

Sediment 

concentration 

(ppm)

116 

108 

99

Sediment 

discharge 

(tons per day)

155 

141 

23.0

Pe

0.002 0.004 0.0
SACRAMENTO RIVER BASIN Continued 

11-4500. CLEAR LAKE AT LAKEPORT, CALIF.

LOCATION. Lat 39°02'40", long 122°54'45", on private pier at foot of Fourth street in Lakeport, Lak

DRAINAGE ARE./ . 528 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966 (discontinued).

Chemical analyses in

Date 

of 

collection

Jan. 7, 1966.....

Feb. 8...... .....

May 6. ...........

Sept. 14. ........

Mean 

discharge

(cfs)

Silica 

(SiO,)

22 

29

Iron 

(Fe)

Calcium 

(Ca)

22 

24

Magnesium 

(Mg)

13 

16

Sodium 

(Na)

10

11

10 

7.4 

8.8

8.3 

9.1 

9.4 

9.8 

10 

11 j

Darts per million, water year October 196

Potassium 

(K)

1.5 

1.9

Bicarbonate 

(HCO,)

148 

160 

145 

102 

117

119 

132 

140 

145 

152 

160

Carbonate 

(CO,)

3 

0 

4 

0 

0

1 

1 

0 

2 

0 

0

Sulfate

(so*)

9.0 

9.0

Chloride 

(Cl)

5.3 

5.2 

5.8 

3.4 

4.5

5.0 

5.2 

4.6 

4.4 

4.8 

4.6

Fluorlde

(P)

Ni

tra

(NO

1

2

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued 

11-4510. CACHE CREEK NEAR LOWER LAKE, CALIF

LOCATION. Lat 38°55'27", long 122°33'53", at gaging station 500 feet downstream from Clear Lake Dam

northeast of Lower Lake, Lake County. 

DRAINAGE AREA. 528 -square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 19

Date

of 

collection

Oct. 5, 1965.....

Jan. 7, 1966.....

Sept. 14. ........

Mean 

discharge 

(cfs)

53 

4.1 

2.7 

601 

2420

13 

142 

516 

314 

401 

174

Silica 

(SiO,)

24 

27

Iron 

(Fe)

Calcium 

(Ca)

26 

25

Magnesium 

(Mg)

13 

17

Sodium

(Na)

11 

11

10 

7.2 

11

12 

14 

11 

10 

11 

13

Potassium 

(K)

1.9 

2.2

Bicarbonate 

(HCO,)

151 

165 

134 

66 

152

144 

165 

152 

148 

152 

166

Carbonate 

(COJ

6 

0 

0 

0 

0

2 

0 

0 

4 

2 

0

Sulfate 

(SO.)

9.0 

9.0

Chloride 

(Cl)

5.5 

5.1 

6.0 

4.1 

5.7

9.6 

8.2 

5.4 

5.4 

5.3 

6.2

Fluorlde 

(F)

Ni

tra

(NO

5

5

A Calculated from determined constituents.
SACRAMENTO RIVER BASIN Continued 

11-4515. NORTH FORK CACHE CREEK NEAR LOWER LAKE, 

LOCATION. Lat 39°01'10", long 122°34'00", at bridge on State Highway 20, 3 miles downstream from ga

Creek, and 6.5 miles northeast of Lower Lake, Lake County. 

DRAINAGE AREA. 198 square miles upstream from gaging station.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966 (discontinued). 

REMARKS. Some inflow between gaging station and sampling point during rainy season. Miscellaneous 

Chemical anal]

Date 

of 

collection

Feb. 8...........

Sept. 14.........

Mean 

discharge

(cfs)

3.0 

2.6 

53 

1490 

670

202 

84 

51 

23 

4.9 

3.0

Silica 

(SiO,)

17 

21

Iron

(Fe)

Calcium 

(Ca)

28 

40

Magnesium 

(Mg)

24 

30

ses, in parts per million, water year October 19

Sodium 

(Na)

34 

39 

34 

6.8 

9.7

13 

18 

22 

30 

32 

39

Potassium 

(K)

1.1

2.0

Bicarbonate 

(HCOJ

215 

213 

218 

89 

120

159 

185 

191 

210 

212 

236

Carbonate 

(CO,)

10 

9 

8 

0 

1

4 

5 

9 

10 

8 

0

Sulfate 

(S0«)

13 

21

Chloride 

(Cl)

66

75 

51 

4.0 

5.8

9.9 

19 

23 

38 

48 

72

Fluorlde 

(?)

N

tra

(N

0

2

A Calculated from determined constituents.
PACIFIC SLOPE BASINS IN CALIFORNIA

t^e 

&1|

 2 S3 

§J|S

01 CJ

tfo" rf 

J3 ^

S|fi

 H-G £ " a - 

S51 

|| g

5g.2 8*1

^l"i a| :rl

T: 

c

X

1

iment

 a

o

 a

 o 

§ Bg

1 c

i

c

Sediment

j c

I'

|J

.

«-

I'S

s

.s

1a

indie ze 

than si

I

fea<

discharge

concenDischarge 

(rtal

li

> a.

li

ij

H «

C*

c

1rt

"3

"S 

a

A 

A 

>.

1 

3

0

o

0 

O)

0

o 

o

H

0 

O

O

o in

O) o'

O)

H

o'

O) 

CO

o o'

H 

CO 

O

o'

CO

H 

0

o'

00

O

o o'

* 

o 

o

o'

O)

o 

o

o'

K

3

14(1) 

a 

n

|

!

'

§ 

&

o

3ST i°~

'

^

g

&>

8H

00

en

00 

00

I I m o i i i i i i

1 1 t- O 1 1 1 1 1 1

H

H

in

CO 

0)

O H O CO t-» H frl 

O ^* 

O 

00

H 

H

TPHOOlH fCJOlCOO) 

H CO ^* H H

5

* ^ en

O)HOO* OCOfinH in CN oo co co co o)

00 COO) H

en

oooif-co cOTCcoinin ^I"I*T|" Trncooo^

ominoo ominoo

HCOHCOO HHHP5O

co en ^ co o< oo en en in en

HOHHH HOOHO

 O) in o) i^ -H nen^HH o) « H co H

+> o q q a hhaHbo

O O S S 0) 0)0,333

OOl-Jl-Sfe SB<l-5l-5<
SACRAMENTO RIVER BASIN--Continued 

11-4517.6. CACHE CREEK ABOVE RUMSEY, CALIF

LOCATION. Lat 38°54'47", long 122°16'14", at gaging station, 0.4 mile downstream fro

Humsey, Yolo County. 

DRAINAGE AREA. 955 square miles. 

RECORDS AVAILABLE. Water temperatures: January 1960 to September 1966.

Sediment records: January 1960 to September 1963, June 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Minimum, 34°F Dec. 17.

Sediment concentrations: Maximum daily, 4,250 ppm Jan. 4; minimum daily, 1 ppm De

Sediment loads: Maximum daily, 132,000 tons Jan. 5; minimum daily, 0.1 ton on sev

EXTREMES, 1960-66. Water temperatures (1964-66): Minimum, 34°F Dec. 17, 1965.

Sediment concentrations (1960-63, 1965-66): Maximum daily, 7,490 ppm Jan. 31, 1963

1960-62, Dec. 21, 1965.

Sediment loads (1960-63, 1965-66): Maximum daily, 363,000 tons Jan. 31, 1963; mini

during 1960-61.

Temperature (°F) of water, water year October 1965 to 

November .....

December ..... 

January. .......

February. ......

June ..........

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

August ........

September .....

1

50 

42

45

87

2

57 

42

68

75

3

60

48 

46

81

4

_

4«

47

67

5

51 

49

79

76

6

_

47 

52

65

~

7

_

47 

50

69

--

75

8

 55

43 

51

68

80

--

9

_

46

10

__

45

47

74

79

11

57

46 

46

12

_

46

81

71

13

45 

48

* o

75

14

56

53 

44

75

15

56

51

50

74

80

~

Day

16

57

35 

50

47

66

17

58

34 

42

49

80

81

71

18

54

41

46

19

 54

35 

42

49

81

73

20

_

37 

40

46

74

2
PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued

11-4517.6. CACHE CREEK ABOVE RUMSEY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

..

..

 

,.

..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean 

discharge

(cfs)

82

83

74

71

72

72

71

69

69

68

68

69

69

71

70

70

55

53

52

52

58

61

60

59

60

55

39

27

14

9.9

9.4

1812.3

583

441

505

7500

11600

3730

2460

2570

3350

3000

2830

2460

1480

1460

1230

407

340

305

280

260

245

230

220

215

205

200

193

183

302

1320

635

50739

OCTOBER

Suspen

Mean

tration

(ppm)

18

15

15

15

16

16

17

17

17

16

16

14

12

12

13

13

12

10

9

9

9

10

10

10

10

9

7

6

5

4

4

JANUARY

80

35

116

4250

3630

1650

900

619

1190

455

370

320

170

116

89

29

12

8

7

5

5

4

3

3

3

3

3

4

48

502

114

-

ded sediment

Tons

per 

day

4.0

3.4

B 3.0

B 2.9

3.1

B 3.1

B 3.3

3.2

B 3.2

B 2.9

2.9

2.6

2.2

2.3

2.5

B 2.5

B 1.8

B 1.4

B 1.3

B 1.3

B 1.4

B 1.6

B 1.6

B 1.6

B 1.6

B 1.3

B .7

B .4

B .2

B .1

B .1

63.5

126

42

S 238

S 127000

S 132000

16600

5980

S 4660

S 11200

3690

2830

2130

679

457

S 309

32

11

6.6

5.3

3.5

3.3

2.5

1.8

1.7

1.7

1.6

1.6

2.0

K 92

S 2040

S 207

310354.6

Mean 

discharge

(cfs)

9.3

9.1

8.7

8.9

9.4

9.5

9.4

12

14

13

11

11

23

333

475

273

201

615

547

280

171

126

105

379

552

327

264

237

189

156

5378.3

830

754

1200

5920

4490

4000

3700

3500

3400

3240

2740

605

512

475

449

415

390

375

560

500

405

380

390

400

535

1380

1380

1360

"

44285

NOVEMBER

Suspen

Mean

concentration 

(ppm)

661

530

125

125

1000

215

55

20

13

9

71

102

34

16

11

8

7

-

FEBRUARY

303

126

500

2780

1350

870

620

500

430

365

325

50

18

10

9

7

5

4

77

58

13

6

6

14

52

192

135

98

~

-

ded sediment

Tons

per 

day

B 0.1

B .1

.1

B .1

B .1

B .2

B .2

.2

6 .2

B .1

.1

B .1

B .2

S 898

5 701

S 107

S 174

S 1700

S 347

B 42

B 9.2

4.4

2.6

S 132

S 158

30

11

7.0

4.1

2.9

4332.0

S 789

S 266

S 3690

S 45600

16400

9400

6190

4730

3950

3190

S 2550

82

25

13

11

7.8

5.3

4.0

S 141

S 81

14

6.2

6.3

15

S 140

715

503

360

__

--

98884.6

C

Mean 

discharge

(cfs)

135

116

102

94

86

81

77

74

73

68

69

87

93

84

74

69

66

63

60

59

60

60

60

211

818

376

267

1410

1960

995

813

8660

1360

1350

1180

331

308

304

291

280

291

405

411

369

352

334

1250

1350

1840

2930

2840

2070

987

333

245

234

226

217

209

202

195

189

184

23067

ECEMBER

Suspen

Mean

concentration

(ppm)

4

4

3

4

3

3

3

3

3

3

3

6

7

5

3

2

2

3

3

2

1

3

2

122

498

70

18

435

673

200

170

MARCH

86

73

6

1

1

11

11

7

13

7

90

83

183

562

530

378

82

25

7

4

5

3

5

4

9

5

5

-

ded sediment

Tons

per 

day

1.

1.

.

1 .

.

.

.

.

.

1.

1.

1.

.

.

.

.

.

.

.

S 264

S 1240

71

13

S 4030

S 3890

537

373

10435.0

316

266

S 212

17

11

5.7

3.9

3.8

4.7

12

12

7.0

12

6.3

S 320

303

S 1590

4450

4060

S 2460

219

22

4.6

2.5

3.1

1.8

2.8

2.2

4.7

2.6

2.5

14340.2

S Computed by subdividing day.

B Computed from estimated-concentration graph.

K Computed from estimated-con 

graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

SACRAMENTO RIVER BASIN Continued

11-4517.6. CACHE CREEK ABOVE RUMSEY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

13..

16..

17..

18..

19..

20..

21..

22..

23..

24..

23..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

3..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

177

209

223

219

215

238

255

307

312

245

324

367

322

281

292

281

306

317

357

398

431

452

466

472

476

531

543

538

503

509

10566

Suspended sediment

Mean 

concentration 

(ppm)

6

5

5

4

6

8

7

9

10

8

9

12

13

9

9

10

13

15

19

26

29

30

30

30

30

35

34

33

28

27

~

Tons 

per 

day

2.9

2.8

3.0

2.4

3.5

5.1

4.8

7.5

B 8.4

B 5.3

7.9

12

11

6.8

7.1

7.6

11

13

18

28

34

37

38

38

39

50

50

48

38

37

577.1

JULY

544

559

547

536

495

503

555

554

536

518

518

518

517

516

514

511

495

479

467

497

485

512

510

502

471

455

456

469

454

444

439

15576

38

38

37

35

29

27

29

30

29

26

24

22

22

22

22

22

23

23

22

22

23

26

26

25

22

18

14

15

16

17

20

-

56

B 57

B 55

51

39

37

43

45

B 42

B 36

34

31

31

31

B 31

B 30

B 31

30

28

30

30

36

B 36

B 34

28

22

17

19

20

B 20

B 24

1054

MAY

Mean 

discharge

(cfs)

574

590

653

671

668

662

641

629

577

519

502

487

516

475

433

433

455

456

484

503

474

440

430

497

529

533

521

486

454

472

450

16214

Suspended sediment

Mean 

concentration

(ppm)

31

29

31

36

33

32

26

26

24

24

24

20

19

21

16

14

15

17

20

25

23

24

25

28

32

30

28

26

25

24

24

-

Tons 

per 

day

48

46

55

65

60

57

45

44

37

34

33

26

26

27

19

16

18

21

26

34

29

29

29

38

46

43

39

B 34

B 31

B 31

29

1115

AUGUST

407

403

389

389

407

416

417

425

465

452

461

432

431

427

414

433

446

444

443

435

401

391

417

399

384

392

359

310

309

329

349

12576

22

24

26

32

39

40

40

40

38

35

34

35

40

47

52

47

41

36

31

28

26

24

25

27

29

31

31

28

24

23

22

~

24

26

27

34

43

B 45

B 45

46

48

43

42

41

B 47

B 54

58

55

49

43

37

B 33

B 28

25

28

29

B 30

B 33

30

23

20

20

21

1127

JUNE

Mean 

discharge

(cfs)

410

408

403

404

406

445

439

389

344

405

459

461

466

492

480

496

498

511

544

561

563

568

524

501

463

435

430

441

479

526

13951

Suspended sediment

Mean 

concentration 

(ppm)

23

23

23

23

26

27

26

25

24

22

21

21

24

26

27

25

25

26

27

28

32

34

31

28

27

27

27

28

31

35

-

Tons 

per 

day

25

25

25

25

29

32

31

26

22

24

B 26

B 26

30

35

35

33

34

B 36

B 40

42

49

52

44

38

B 34

B 32

31

B 33

B 40

B 50

1004

SEPTEMBER

317

263

231

217

220

257

314

360

306

253

252

223

206

221

218

218

205

202

206

203

186

178

155

153

153

151

126

119

139

141

~

6393

22

22

20

19

18

19

23

22

19

18

17

16

15

14

13

13

15

14

14

14

15

16

17

17

16

15

14

14

14

14

~

19

16

B 12

B 11

B 11

B 13

20

B 21

B 16

B 12

B 12

B 9.6

B 8.3

8.4

7.7

7.7

8.3

 6

.8

.7

.5

.7

 1

B .0

B .6

.1

.8

.5

B .3

B .3

298.0

Total discharge foi 

Total load for year

year (cfs-days). 

(tons)..........

209217.6

443585

B Computed from estimated-concentration graph.
SACRAMENTO RIVER BASIN Continued 

11-4517.6. CACHE CREEK ABOVE RUMSEY, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Feb. 4........... .

Mar. 18. ..........

Time 

(24 hour)

1230 

1225 

0850 

1150 

0840 

1100 

1315

Water 

temperature

CF)

54 

43 

49 

52 

47 

48 

57

Sampling 

point

Discharge 

(cfs)

550 

1660 

11400 

3660 

6390 

370 

2920

Sediment 

concentration 

(ppra)

146 

577 

3540 

1630 

3060 

22 

545

Sediment 

discharge 

(tons per day)

217 

2590 

109000 

16010 

52800 

22.0 

4300

Perc

0.002 0.004

54 

33

0.00
SACRAMENTO RIVER BASIN Continued

11-4520. CACHE CREEK NEAR CAPAY, CALIF.

LOCATION. Lat 38°43'40", long 122"06'15", at gaging station in Canada de Capay Grant, 1.8 mile

miles northwest of Capay, Yolo County, and 5.4 miles northwest of Esparto. 

DRAINAGE AREA (revised). 1,044 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1952 to September 1966.

upstr

Chemical analyses parts per million, October 1965 to 

Date 

of 

collection

Nov. 19....... ...

Jan. 13, 1966....

June 3. ..........

Mean 

discharge 

(cfs)

69 

643 

85 

1790

482 

300 

202 

510 

419

Silica

(SiO,)

20

Iron 

(Fe)

Calcium 

(Ca)

26

Magnesium 

(Mg)

20

Sodium 

(Na)

26 

38 

62 

17

32 

35 

38 

21 

19

Potassium 

(K)

2.2

Bicarbonate 

(HCO,)

207 

191 

242 

167

214 

224 

224 

188 

164

Carbonate 

(CO,)

9 

0 

16 

3

8 

9 

8 

0 

0

SuUate 

(»4)

13

Chloride 

(Cl)

30 

50 

86 

16

33 

40 

39 

20 

15

FIuoride 

(P)

Nitrate 

(NO,)

1.4
PACIFIC SLOPE BASINS IN CALIFORNIA

"is 

§>,

3 S 

t3 1

n g 0) 

N oo 'S

£ SH S S

O 0) ft ft

fH.0 X K

d S d d

<fi 0) SH 

1" rt O

one

SH O SH SH 

3-^33 

 d N d C8 

0) fn <fi fn fn ^Kll

0) +J 0 +J +J

(U in O Sn Sn

ffi d O d C8

3: SS

Ml II

 K

 7 I s

I O 10

WT) tC tC

! m o i i 

 < o mo

W w SH C1 Ol

a < Hrt

3 >-U < o . »

) W (U CO CO

ca co g u w

> < Q -H

: *a^i) w

. r~ ee r- r- i

s e ss se eg 3D1-D3 33 33 ^ E e ^s e >-s E

se33

es

ee33

se

es33

se

ee33

ee

s

«SS E.S3
SACRAMENTO RIVER BASIN Continued 

11-4535. PUTAH CREEK NEAR GUENOC, CALIF. Continue

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, deca

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Dec. 31.. .........

Jan. 1, 1966... . ..

Jan. 4...... ......

Aug. 31...........

Time 

(24 hour)

0945 

1245 

1410 

1430 

1625 

1635

1530 

1600 

1620 

1125 

1630 

1600

1620 

1620 

1630 

1600 

1540 

1530

1510 

1600 

1015 

1000 

1400 

0900 

1130 

0815

Water 

temperature 

(°F)

65 

59 

52 

48 

48 

48

49 

47 

49

50 

50

51 

51 

51 

52 

52 

52

52 

52 

47 

60 

69 

72 

76 

67

Sampling 

point

Discharge 

(cfs)

1.2 

2.2 

48 

795 

761 

713

449 

343 

905 

8020 

4600 

1810

1100 

799 

484 

410 

353 

312

279 

157 

1560 

48 

16 

5.5 

1.7 

.3

Sediment 

concentration 

(ppm)

3 

2 

3 

30 

21 

28

12 

2010 

1370 

2070 

122 

64

38 

14 

8 

8 

6 

6

3 

3 

174 

2 

14 

4 

1 

2

Sediment 

discharge 

(tons per day)

T 

T 

.4 

64 

43 

54

15 

1860 

3350 

44800 

1520 

313

113 

30 

10 

8.8 

5.7 

5.1

2.3 

1.3 

733 

.3 

.6 

.1 

T 

T

Per ce

0.002 0.004

31

0.008 

T Less than 0.05 ton.
SACRAMENTO RIVER BASIN Continued 

11-4540. PUTAH CREEK NEAR WINTERS, CALIF.

LOCATION. Lat 38°30'55", long 122°04'50", at gaging station 1.3 miles (revised) downstream from Mon

8 miles downstream from Capell Creek. 

DRAINAGE AREA. 574 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1952 to September 1966 (discontinued).

Water temperatures: November 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 65°F Apr. 3; minimum, 47°F on many days during Dec

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 6, 1965. ....

Jan. 14, 1966....

July 15... .......

Mean 

discharge

(cfs)

352 

101 

65 

48 

269

471 

436 

577 

632 

B724 

442

Silica 

(S10,)

13 

13

Iron 

(Fe)

Calcium 

(Ca)

20 

17

Magnesium 

(Mg)

23 

25

Sodium

(Na)

7.6 

8.2 

9.3 

11 

9.5

8.7 

8.5 

8.3 

8.0 

8.2 

8.2

Potassium 

(K)

1.3 

1.5

Bicarbonate 

(HCO,)

158 

161 

166 

162 

164

165 

161 

170 

161 

164 

170

Carbonate

(ccg

5 

4 

4 

4 

4

4 

5 

2 

6 

4 

0

Sulfate 

(SO.)

17 

17

Chloride 

(Cl)

4.6 

4.2 

6.4 

7.6 

6.4

5.0 

4.0 

4.7 

4.6 

4.5 

4.0

Fluorlde 

(P)

N

tra

(N

0

A Calculated from determined constituents. 

B Discharge at time of sampling.
QUALITY OF SURFACE WATERS, 1966

5 g g s & s.s 3 S.s-s S.s Ss is, is Ssgss
SACRAMENTO RIVER BASIN Continued

LOCATION. Lat 38

Cache Slough. 

RECORDS AVAILABLE

11-4553. LINDSAY SLOUGH NEAR RIO VISTA, CAL

'14'45", long 121°42'25", near tidal gaging station, 6 miles north of Rio Vista, So

 Chemical analyses: October 1953 to September 1966 (discontinued).

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Jan. 14, 1966.. . .

Sept. 6..........

Mean 

discharge 

(cfs)

Silica 

(SiO,)

15 

19

Iron 

(Fe)

Calcium 

(Ca)

15 

15

Magnesium

(MB)

11 

11

Sodium

(Na)

15 

9.3 

11 

18 

37

27 

18 

16 

17 

17 

17

Potassium 

<K)

0.9 

1.6

Bicarbonate 

(HCO,)

97 

72 

73 

103 

139

158 

108 

97 

101 

97 

104

Carbonate 

(CO,)

l 

0 

0 

0 

2

2 

0 

0

1 

0 

0

Sulfate 

(SO.)

21

15

Chloride 

(Cl)

9.5 

5.1 

8.0 

12 

28

21 

23 

14 

14 

12 

11

Fluoride

(F)

N

tra

(NO

1

1
SACRAMENTO RIVER BASIN Continued

11-4554. SACRAMENTO RIVER NEAR RIO VISTA, CA

LOCATION. Lat 38 0 08'54", long 121°41'27", at pier, 1,500 feet upstream from tidal gaging station, 1 

3.1 miles downstream from Steamboat Slough. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Chemical analyses, in parts million, October 1965 

Date 

of 

collection

Nov. 1...........

June 8 ...........

Mean 

discharge 

(cfs)

-

Silica 

(SiO,)

16

Iron 

(Fe)

Calcium 

(Ca)

13

Magnesium 

(Mg)

6.0

Sodium

(Na)

10 

8.3 

9.7 

11

17 

14 

6.8 

11 

16

Potassium 

(K)

0.9

Bicarbonate 

(HCO,)

76 

70 

70 

75

91 

98 

61 

68 

94

Carbonate

(cog

0 

0 

0 

0

0 

0 

0 

0 

0

Sulfate 

(S04 )

15

Chloride 

(Cl)

6.0 

4.7 

6.9 

8.6

12 

11 

4.6 

6.5 

12

Fluoride

(F)

N

tra

(NO

1
NAPA RIVER BASIN 

11-4560. NAPA RIVER NEAR ST. HELENA, CALIF

LOCATION. Lat 38°29'40", long 122"25'50", at gaging station 0.2 mile upstream from highway bridge, 

St. Helena, Napa County. 

DRAINAGE AREA. 81.4 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966 (discontinued).

Water temperatures: October 1957 to September 1966.

Sediment records: December 1956 to June 1962.

EXTREMES, 1965-66. Water temperatures: Minimum, 41°F on several days during December. 

EXTREMES, 1961-63, 1964-66. Water temperatures: Maximum (1961-63, 1964-65), 82°F June 17, 1963; mi

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 15, 1965... .

Jan. 14, 1966....

Sept. 16. ........

Mean 

discharge 

(cfs)

0.6 

5.2 

13 

112 

202

72 

27 

14 

4.8 

1.3 

.8

Silica 

(S10a)

35 

26

Iron

(Fe)

Calcium 

(Ca)

23 

33

Magnesium

(Mg)

9.6 

18

Sodium 

(Na)

19 

21 

24 

11 

9.5

12 

16 

23 

22 

18 

18

Potassium 

(K)

2.5 

2.2

Bicarbonate 

(HCOJ

179 

146 

100 

70 

63

83 

101 

116 

141 

167 

186

Carbonate 

(COJ

4 

0

1 

0 

0

0 

0 

0

1

2 

0

Sulfate 

(S04)

17 

17

Chloride 

(CD

16 

26 

24 

8.0 

1.2

9.0 

14 

21 

22 

12 

12

Fluoride 

(F)

N

tra

(N

7

8

A Calculated from determined constituents.
NAPA RIVER BASIN Continued

11-4560. NAPA RIVER NEAR ST. HELENA, CALIF. Co

Temperature (°F) of water, water year October 1965 t

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Minimum ....

July

Minimum ....

August

September

1

62

61

55

55

47

46

44

49

47

5?

50

66

59

67

70

2

6?

61

55

55

48

45

43

48

47

5?

48

65

59

68

70

3

61

59

55

55

47

47

45

48

4R

51

47

66

58

70

70

4

60

59

55

51

47

47

47

50

4B

50

48

65

59

6B

71

5

61

60

55

55

47

49

47

51

50

51

49

64

59

68

72

6

62

61

55

54

47

bl

49

51

49

56

52

64

61

68

72

7

62

61

54

54

48

52

51

49

47

58

54

64

59

69

71

8

62

62

57

54

48

52

51

49

46

55

54

63

59

70

72

9

6?

fi?

57

5S

48

5?

50

50

47

5S

54

61

59

68

71

10

62

61

56

54

48

51

50

50

48

58

54

61

59

67

70

1 1

61

60

56

55

48

51

50

50

47

57

52

60

58

67

70

12

61

61

56

55

48

51

49

50

48

55

53

64

58

67

71

13

61

60

56

56

46

53

51

50

47

60

54

64

58

67

71

14

61

61

56

55

44

54

51

51

48

60

55

67

60

66

70

15

61

5fl

57

56

42

54

52

51

48

56

54

69

62

66

68

Day

16

58

57

57

56

42

53

50

51

47

56

51

70

63

66

68

17

57

57

57

56

41

53

50

52

46

55

49

68

65

65

67

18

58

57

56

55

41

53

51

52

50

55

51

68

62

67

71

19

59

50

56

55

41

52

50

52

50

59

53

66

61

67

70

20

59

50

55

54

42

51

48

53

50

58

 SO

67

60

68

70
PACIFIC SLOPE BASINS IN CALIFORNIA

se eg se es ss

 £ I si 

' 66 6S

^^

u I 6J S ijj I I ^ 

 § i i £ i sg i i is i'i 3 i.i-g i.i-'ii is is 'islisSis

§22 g22y 22 S22J522 a22'g.22 S-22 = 22^-2 2 «22S.2S
RUSSIAN RIVER BASIN

11-4610. RUSSIAN RIVER NEAR URIAH, CALIF

LOCATION. Lat 39°12'07", long 123°11' 55" , at gaging station 200 feet downstream fro

3.6 miles north of Ukiah, Mendocino County. 

DRAINAGE AREA. 99.7 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1964 to September 1966.

Sediment records: January 1964 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 1,480 ppm Jan 5; minimu

Sediment loads: Maximum daily, 30,400 tons Jan. 4; minimum daily, less than 0.05 

EXTREMES, 1964-66. Sediment concentrations: Maximum daily, 9,480 ppm Dec. 22, 1964

Sediment loads: Maximum daily, 352,000 tons Dec. 22, 1964; minimum daily, 0 ton o

Temperature (°F) of water, water year October 1965 to 

October .......

January. ....... 

February. ......

March .........

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

June ..........

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

September .....

1

76

49

2

49

58

81

3

~

49

~~

4

48

5

76

48

80

6

48

7

49

58

81

8

68

9

48

81

10

48

__

11

48

_

12

68

48

80

13

48

58

__

14

48

79

15

68

Day

16

79

17 18

__

19

67

60

81

20

__
PACIFIC SLOPE BASINS IN CALIFORNIA

RUSSIAN RIVER BASIN Continued 

11-4610. RUSSIAN RIVER NEAR URIAH, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

OCTOBER

: I Suspended sediment

i Mean I ~l

Day discharge

(cfs)

1.. 0.7

2.. .6

3.. .6

4.. 1 .6

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

.7

.8

.8

.9

.9

.8

.9

.8

.9

1.0

1.1

1.1

1.1

Mean

tration 

(ppm)

1

 

1

_

3

Tong

per 

day

__

NOVEMBER

Mean

discharge

(cfs)

1.0

1.0

1.2

1.8

1.2

1.1

2.0

7.6

5.8

4.5

3.1

3 ! 23

91

4

__

 -

1.1 

1.1

1.0

1.0

1.1 1.1

1.1

1.1

1.0

.0

28.. i .0

29.. .1

30.. .0

31..

Total

1..

2..

3..

4..

5..

6».

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

j^

1

1

219

204

49

179

812

380

165

Suspended sediment

Mean

concentration 

(ppm)

1

1

_

 

2

2

2

17

66

143

137

Tons

peiday

T

T

T

T

T

T

T

T

T

T

T

S 1.9

S 16

S 98

S 80

DECEMBER

Suspended sediment Mean 

discharge

(cf.)

75

62

52

44

38

34

30

27

26

Mean

tration 

(ppm)

8

9

4

5

3

4

5

10

18

24 17

25

33

26

23

22

23 3.0 ! 20

55 Is 67 18

92

49

44

109 22

80 12

70 12

666 212

-- '

1

.0

29.0 0.1

JANUARY

468

368

1060

6840

4470

1700

809

546

364

279

234

201

78

310

596

1360

1480

690

275

57

99

308

S 1810

S 30400

S 19500

S 3300

601

84

757

392

313

182

130

102

4953.3

102

54

S 226 17

14

16

10

6

7

4

3

2

50 17 2

20

6.5

B 2.6

2.3

S 428

S 217

57

20 17

14 6.9

14 B 4.9

12

~

B 3.3

1307.5

FEBRUARY

651

306

502

1660

783

710

500

384

49 48 302

40 30 252

30 19

33 18

175 i 25 12

161 13 5.7

147 12

134 12

124

107

89

77

68

63

57

52

48

46

44

42

294

869

273

20209

10

13

14

10

9

10

20

22

19

103

127

33

104

175

64

-

4.8

4.3

3.3

3.8

3.4

2.1

1.7

1.7

3.1

3.1

2.5

13

15

3.7

S 156

S 540

47

57043.2

201

176

56

17 2

16 2

15 2

15 , 2

Tons

peiday

1.6

1.5

.6

.6

.3

.4

 4

.7

B 1.3

B 1.1

.9

1.4

.7

.4

.4

.2

.1

.1

B .1

B .1

B .1

.1

B .1

248 i 186 K 237

313 ! 220

165 ! -

120 

1450 347

836 235

595 , 190

901

5304

232

80

42

K 1880

S 562

305

S 595

3934.2

MARCH

S 363 1 188

46

113 S 224

183 820

180 381

145

78

37

278

B 105

38

44 36

49

46

175 18

154 10

139

124

113

11

33

165

145

11 5.6

7

7

137 7

175 10

159 8

152

168

516

581

25 , 368

8.5 279

4.2 279

4.1 237

13 4.4 < 249

15

107 i 7

102

246

15»

130

137

154

288

386

376

270

219

9530

8

13

9

10

9

21

75

45

24

14

15

 .

4.6

2.0

2.2

S 9.7

3.9

3.5

3.3

B 8.7

S 63

S 61

24

10

8.9

2575.0

6

9

1*7

148

38

3.1

2.7

2.6

4.7

3.4

2.5

4.1

S 286

S 247

38

14 11

24 18

31 20

28 19

285 33 ; 25

234 19 ! 12

201 20

204 18

11

9.9

170 8 ; 3.7

161 52 23

145

134

124

109

97

90

82

76

72

68

6050

21 8.2

11

10

8

6

6

9

16

17

4

4.0

3.3

2.4

1.6

1.5

2.0

3.3

3.3

.7

782.6

S Computed by subdividing day.

T Less than 0.05 ton.

B Computed from estimated-conce ntration graph.

K Computed from estimated-concentration 

graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

RUSSIAN RIVER BASIN Continued

11-4610. RUSSIAN RIVER NEAR URIAH, CALIF.--Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4».

5..

6..

7..

8«.

9».

10..

11..

12..

13*.

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Mean 

discharge

(cfs)

63

60

57

51

50

47

47

44

50

68

253

359

165

124

102

67

78

71

62

58

54

49

46

42

40

36

35

34

30

29

2271

1.1

1.1

1.1

1.2

1.1

1.0

1.1

1.0

.9

1.0

1.2

1.8

1.8

1.8

1.8

2.2

2.1

1.4

1.1

.7

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

30.4

APRIL

Suspen

Mean

tration

(ppm)

3

5

5

3

3

3

3

3

3

35

87

89

23

55

20

2

2

--

JULY

3

1

1

1

--

7

 

1

1

 

1

2

5

 

6

--

3

 

-

ded sediment

Tons

per 

day

0.5

.

.

.

.

,

.

.

6.

S 74

S 103

10

18

5.5

1.3

.8

.8

.7

.6

.6

.3

.2

.1

.2

.2

.2

.2

.2

.2

228.0

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

7

T

T

T

T

T

T

T

T

T

0.2

Mean 

discharge

(cfs)

25

25

24

22

22

22

20

20

20

20

18

16

14

14

14

14

14

14

13

13

13

1?

12

12

12

12

11

10

11

12

12

493

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

5.2

MAY

Suspen

Mean

tration

(ppm)

_

3

6

6

1

2

1

1

--

2

~

3

 .

4

~

1

2

1

~

AUGUST

3

3

4

3

3

7

--

6

_

10

11

_

8

17

3

2

--

5

ded sediment

Tons

per 

day

0.2

.2

.3

.4

.4

 4

.2

.1

.1

.1

.1

.1

il

.1

.1

.1

.1

.1

.1

T

T

.1

.1

T

T

T

3.9

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0.1

Mean 

discharge

(cfs)

12

11

9.0

9.6

9.1

11

8.6

8.1

8.1

7.6

7.2

7.6

7.6

5.8

3.8

3.4

2.6

2.1

1.2

1.2

1.1

1.0

1.2

1.4

2.0

2.1

2.1

1.4

1.2

1.1

151.2

S

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

.1

.2

5.9

JUNE

Suspen

Mean

tration

(ppm)

1

__

2

__

1

__

2

__

2

__

3

__

3

_

2

1

_

1

~

1

_

2

__

3

__

EPTEMBER

__

1

 _

~

4

__

3

2

_

1

__

4

2

4

2

3

10

__

3

__

4

ded sediment

Tons

per 

day

T

T

T

T

T

T

T

T

T

T

T

0.1

.1

T

T

T

T

T

J

T

T

T

T

T

T

T

T

T

T

T

0.8

__

T

T

T

T

T

T

T

T

0.1

Total discharge for year (cfs-days). 

Total load for year (tons)..........

49032.0

65875.6

S Computed by subdividing day. 

T Less than 0.05 ton.
RUSSIAN RIVER BASIN Continued 

11-4610. RUSSIAN RIVER NEAR UKIAH, CALIF. Conti

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, plpet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 24, 1965... . .

Jan. 6. ...........

Time 

(24 hour)

1640 

1105 

1505 

1650 

1430

Water 

temperature 

(°F)

52 

49 

48 

48 

55

Sampling 

point

Discharge

(cfs)

746 

606 

9600 

3140 

1470

Sediment 

concentration 

(ppm)

257 

185 

1130 

1160 

648

Sediment 

discharge 

(tons per day)

518 

303 

29300 

9830 

2510

Perc

0.002

29

0.004

36 

41

0.00

54
RUSSIAN RIVER BASIN Continued 

11-4615. EAST FORK RUSSIAN RIVER NEAR CALPELLA, 

LOCATION (revised). Lat 39°14'48", long 123°07'45", temperature recorder at gaging 

Cold Creek, and 3.9 miles east of Calpella, Mendocino County. Prior to Apr. 6, a

DRAINAGE AREA (revised). 92.2 square miles. 

RECORDS AVAILABLE. Water temperatures: March 1964 to September 1966.

Sediment records: March 1964 to September 1965. 

EXTREMES, 1965-66. Water temperatures: Maximum, 75°F June 15; minimum, 39°F Dec. 1

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

66

61

_ .

47

45

41

47

42

48

46

56

52

56

55

65

57

71

64

71

61

71

65

2

65

61

 .

_

47

45

42

48

47

47

44

55

52

58

55

63

56

71

63

72

63

72

67

3

64

61

47

44

43

48

45

47

44

55

52

58

56

63

55

71

62

74

65

72

67

4 5

63 , 64

61 62

__

48

45

49 

46

47

45

46

45

55

53

59

56

65

55

71

63

74

65

72

67

49

46

6

64

62

58

54

50

47

7 8

64 64

62

56

55

49

47

49j 50 I 50

1

50J 51

47

47

45

56

53

57

55

65

57

73

63

74

65

73

67

48

49

47

56

54

59

55

62

59

71

64

73

66

72

67

46

46

49

48

57

54

59

56

63

57

71

63

73

66

71

67

62

58

55

9

63

61

10

64

61

57

54

55

52

49 49 47

47

49

47

45

48

47

55

52

60

57

66

58

66

62

73

65

71

65

46 45

48 46

47

45

51

48

54

53

58

56

68

59

66

60

70

65

70

66

48

45

51

48

54

53

57

55

68

60

67

58

69

64

70

67

1 1

64

61

56

53

12

63

60

55

55

46 47

45 45

44 42

46 46

44

50

48

54

51

59

55

69

59

69

60

72

64

69

67

44

50

48

55

51

60

57

69

59

69

61

72

65

68

66

13

63

60

55

53

47

44

42

45

43

51

49

56

50

61

56

71

61

69

62

73

65

67

66

14 1 5 ,' 1 6

61

59

55

53

45

42

42

45

43

51

49

56

52

59

55

74

65

69

62

73

65

67

66

60

57

56

54

43

41

59

56

55

53

17

60

57

54

53

42 42

39

42(41

45

43

50

49

56

53

59

55

75

65

69

61

74

66

68

66

47

43

50

48

57

54

60

56

74

65

68

61

72

66

68

66

39

40

47

44

49

46

57

54

61

57

73

63

69

61

73

66

68

67

18

60

57

54

19

--

20

- .

54

51 52

42 42

39

42

40

46

45

49

47

56

52

63

58

74

64

69

63

73

65

69

39

43 

41

48

46

51

49

56

53

66

57

73

64

69

63

73

65

68

68 67

53

51

41

39

42 

40

48

47

50

47

56

52

68

59

71

63

70

62

73

66

69

68
RUSSIAN RIVER BASIN Continued 

11-4615. EAST FORK RUSSIAN RIVER NEAR CALPELLA, CALIF. 

riodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Nov. 19...........

Nov. 24. ..........

Dec. 1............

Dec. 10. ..........

Dec. 13...........

Dec. 24. ..........

Dec . 31 ...........

Jan. 3.. ..........

Time 

(24 hour)

1635 

1600 

0700 

0705 

0715 

0715

0715 

0730 

0730 

0820 

0705 

0710

0715 

1700 

2000 

0730 

0700 

0730

0715 

0900 

1300 

0715 

0930 

0930

0730 

1200 

0730 

0730 

0730 

0730

0745 

0740 

1215 

1630 

0730 

1110

Water 

temperature

(°F)

56 

56 

54 

54 

52 

49

48 

50 

46 

48 

44 

43

44 

51

48 

47 

48

47

45 

46 

48 

42 

44 

42

39 

40 

39 

40 

42 

43

41 

40 

37 

43 

43 

42

Sampling 

point

Discharge 

(cfs)

194 

218 

496 

184 

374 

305

1240 

524 

380 

356 

206 

202

200 

198 

196 

194 

192 

192

190 

188 

204 

196 

192 

190

188 

188 

323 

323 

326 

1020

890 

1300 

605 

560 

1010 

960

Sediment 

concentration 

(ppm)

10 

23 

309 

105 

95 

135

611 

80 

56 

34 

35 

32

26 

35 

27 

26 

25 

27

24 

27 

26 

18 

19 

16

17 

19 

31 

27 

24 

294

63 

58 

69 

72 

169 

173

Sediment 

discharge 

(tons per day)

5.2 

14 

414 

52 

96 

111

2050 

113 

57 

33 

19 

17

14 

19 

14 

14 

13 

14

12 

14 

14 

9.5 

9.8 

8.2

8.6 

9.6 

27 

24 

21 

810

151 

204 

113 

109 

461 

448

Perc

0.002 0.004 0.00
RUSSIAN RIVER BASIN Continued 

11-4615. EAST FORK RUSSIAN RIVER NEAR CALPELLA, CALIF

Periodic determinations ol suspended-sediment discharge and particle size, water ye

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Feb. 12.... .......

Apr. 29, 1966. ....

Sept. 28..........

Time 

(24 hour)

0740 

0800 

1100 

0740 

0730 

1125 

1930 

0740 

1700 

0945 

0745 

0715 

0730 

1945 

0730 

0715 

0930 

0745

1515 

0940 

1000 

1800 

0800 

1900 

0900 

1600 

0745 

1830 

1830 

0945 

0730 

1400 

0745 

0745 

0750 

0745 

1000 

1100 

1100 

1200 

1240

Water 

temperature 

(°F)

42 

43 

43 

42 

42 

48 

46 

41 

43 

43 

42 

44 

46 

42 

42 

44 

42 

42

46 

46 

48 

46 

46 

46 

46 

46 

48 

46 

52 

52 

52 

54 

54 

56 

54 

54 

58 

68 

66 

70 

70

Sampling 

point

Discharge

(cfs)

5000 

5420 

7870 

3060 

1380 

744 

480 

368 

253 

350 

347 

332 

504 

713 

870 

470 

414 

392

383 

584 

380 

500 

410 

473 

431 

404 

459 

414 

298 

338 

470 

360 

363 

400 

368 

348 

221 

107 

199 

199 

266

Sediment 

concentration 

(ppm)

122 

117 

132 

117 

123 

319 

110 

110 

127 

111 

118 

73 

79 

73 

74 

52 

49 

59

77 

53 

59 

55 

60 

57 

57 

74 

54 

31 

45 

25 

27 

35 

28 

27 

29 

28 

20 

9 

14 

9 

17

Sediment 

discharge 

(tons per day)

1650 

1710 

2800 

967 

458 

641 

143 

109 

87 

105 

111 

65 

107 

141 

174 

66 

55 

62

80 

84 

61 

74 

66 

73 

66 

81 

67 

35 

36 

23 

34 

34 

27 

29 

29 

26 

12 

2.6 

7.5 

4.8 

12

Perc

0.002 0.004 0.00
RUSSIAN RIVER BASIN Continued 

11-4618. LAKE MENDOCINO NEAR URIAH, CALIF

LOCATION. Lat 39°11'53", long 123°10'50", temperature recorder at gaging station in 

upstream from Coyote Dam on East Fork Russian River, and 3.6 miles northeast of Uk

DRAINAGE AREA. 105 square miles.

RECORDS AVAILABLE. Water temperatures: December 1965 to September 1966. 

EXTREMES, December 1965 to September 1966. Water temperatures: Maximum, 81°F Aug. 

Temperature (°F) of water, December 1965 to Se

October

November

December

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

47

47

+6

46

47

46

62

62

69

6$

74

73

78

7?

76

72

2

47

47

46

45

47

46

62

62

68

65

73

72

78

76

77

73

3 4 5

47

47

45

45

47

47

67

62

70

65

75

72

79

76

77

73

47

46

46

45

47

45

64

59

66

63

75

73

78

77

76

73

46

46

46

46

46

46

64

59

66

62

78

72

79

77

76

73

6

47

46

46

46

48

46

62

62

67

6?

74

73

80

77

75

73

7 8 , 9

48 49 48

47

46

46

48

47

65

62

66

65

76

73

80

78

74

72

48 47

46

47

47

64

63

68

66

74

73

79

78

76

73

46

46

47

47

63

58

68

64

73

72

79

77

78

75

10

48

47

47

46

50

47

60

56

64

64

74

72

79

78

78

76

11

48

47

46

46

51

49

58

57

67

64

74

71

79

77

78

77

12

47

46

46

46

49

48

60

58

67

66

73

72

78

76

78

77

13

46

46

46

46

51

48

60

58

69

66

73

72

79

76

77

77

14

46

46

46

46

53

51

61

60

67

66

74

71

80

76

78

76

15 16

<

<

47

46

46

46

54

50

64

61

68

65

73

72

79

76

78

76

46

46

46

46

51

51

66

63

67

66

74

72

80

7R

78

77

17

46

46

47

46

53

51

65

62

70

66

74

72

Rl

77

79

77

18

47

46

48

45

53

51

63

62

71

68

75

72

79

78

77

77

19

46

46

46

45

50

49

62

61

71

70

75

72

79

7S

78

77

20

46

46

47

46

51

50

62

61

72

70

76

73

80

77

77

76
RUSSIAN RIVER BASIN Continued 

11-4620. EAST FORK RUSSIAN RIVER NEAR UKIAH, CAL

LOCATION. Lat 39°11'45", long 123°11'30", at gaging station 500 feet downstream from 

and 3.2 miles northeast of Ukiah, Hendocino County. 

DRAINAGE AREA. 105 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1952 to March 1955.

Water temperatures: December 1952 to March 1955, October 1964 to September 1966.

Sediment records: December 1952 to March 1955, January 1964 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 286 ppm Jan. 12; minimum 

Sediment loads: Maximum daily, 1,990 tons Jan. 11; minimum daily, 0.4 ton Jan. 5.

EXTREMES, 1964-66. Sediment concentrations: Maximum daily, (estimated) 1,900 ppm De

days in 1965.

Sediment loads: Maximum daily, (estimated) 22,000 tons Dec. 25, 1964; minimum dail

Temperature (°F) of water, water year October 1965 to 

February. ......

April ..........

June ..........

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

August........ 

September .....

Day

1

49 

47

49

50

52

56

2

49

46 

49

bl

_

63

3

50

47 

49

__

50

_

57

4

49

47 

49

51

~

5?

_

5

48

48 

49

....

~

_

57 

64

6

48

47 

49

5n

50

54

7

47

47 

49

__

_

64

8

48

47 

49

50

54

57

9

47

47 

49

49

_

64

10

47

47 

*9

50

_

57

1 1

46

47 

49

49

~

54

_

12

48

47 

48

_ _

~

_

SB 

64

13

48

47 

49

49

52

54

"

14

49

47 

49

_

64

15

48

48 

49

__

50

55

60

16

48

48 

49

49

_

64

17

48

48 

46

__

50

_

60

18

48 

47

48 

48

50

55

64

19

49 

47

47 

50

__

 i5

60 

65

20

48 

47

47 

50

50

50

55

_

2
PACIFIC SLOPE BASINS IK CALIFORNIA

RUSSIAN RIVER BASIN Continued 

11-4620. EAST FORK RUSSIAN RIVER NEAR URIAH, CALIF. Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean

discharge

(cfs)

258

258

265

265

270

275

280

347

421

419

418

348

240

241

221

248

24B

247

246

244

244

244

244

244

244

245

245

245

282

299

298

8593

558

558

700

59

2.9

1420

3200

3130

3070

3000

2950

1160

16

13

8.8

8.8

8.8

8.8

7.9

7.9

7.9

7.9

7.9

7.9

7.9

7.9

7.9

8.4

9.3

8.8

1060

21029.7

Suspended sediment

Mean

tration 

(ppm)

10

- 

5

__

7

7

--

7

11

9

6

--

6

~

Tons

per 

day

7.0

7.0

5.7

.3

.6

.7

.5

.6

.0

.9

.9

.6

.5

.6

.2

.4

.0

.7

.3

.2

.6

.9

.9

.3

.6

.0

.0

.0

.6

.8

.0

172.4

JANUARY

6B

133

73

47

47

155

194

143

130

130

250

286

282

260

245

210

194

179

131

85

81

77

81

85

82

80

78

75

71

73

75

102

200

5 136

7.5

.4

594

1680

1210

1080

1050

1990

5 906

12

9.1

5.8

5.0

4.6

4.3

2.8

1.8

1.7

1.6

1.7

1.8

1.7

1.7

1.7

1.7

1.8

1.7

215

9233.4

NOVEMBER

Mean

discharge

(cfs)

299

297

297

297

297

296

296

296

297

298

298

298

298

297

1210

1900

1870

1850

1200

234

234

83

21

20

20

20

20

20

21

21

12905

1720

1700

795

474

1690

1680

1660

1640

558

17

16

16

17

17

17

17

17

17

17

17

17

17

17

18

18

18

18

18

- 

12243

Suspended sediment

Mean

concen- 

(ppm)

5

4

_

5

_

6

6

8

11

13

14

14

19

21

31

47

57

46

57

61

41

39

33

28

Tons

per

day

4.0

4.0

4.0

3.2

3.2

3.2

3.2

4.0

4.0

4.0

4.8

4.8

4.8

6.4

DECEMBER

Suspended sediment

Mean '

discharge

(cfs)

21

32

36

36

36

33

63

168

311

311

311

311

311

311

S 39 ij 311

67 311

71 311

70 311

S 61 307

13 307

B 20 307

11

3.2

307

307

2.5 304

3.1 307

3.3

2.2

2.1

1.9

1.6

429.5

FEBRUARY

66

70

67

66

66

62

68

54

82

100

90

92

88

86

65

59

58

52

52

53

53

50

50

50

46

44

45

47

 

~

~

307

321

144

84

301

281

305

239

S 97

4.6

3.9

4.0

4.0

3.9

3.0

2.7

2.7

2.4

2.4

2.4

2.4

2.3

2.3

2.4

2.2

2.1

2.2

2.3

__

__

2133.2

307

202

28

355

640

558

7771

Mean

concen- 

(ppm)

27

26

22

23

23

19

18

14

12

13

14

13

13

12

13

11

12

11

12

12

11

8

 _

. _

. 

40

67

66

-

MARCH

808

1340

715

359

406

406

406

406

406

500

508

32

29

42

49

39

37

35

Tons

per 

day

1.5

2.2

2.1

2.2

2.2

1.7

3(1

6.4

B 10

B 11

12

11

11

10

11

9.2

10

9.2

9.9

B 9.9

B 9.1

6.6

6.6

5.7

5.8

5.8

3.8

1.2

S 39

S 121

99

449.2

S 65

105

S 74

47

43

41

38

37 ' 41

39 ' 43

33

31

406 33

406 34

501 32

558 30

558 30

558 , 26

502 26

470 j 29

470 24

470

402

363

332

314

314

314

276

192

160

160

13986

28

28

27

29

29

27

26

28

28

31

29

45

43

36

37

43

45

45

39

35

37

30

36

30

26

26

25

23

22

21

15

13

13

1182

S Computed by subdividing day.

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

RUSSIAN RIVER BASIN Continued

11-4620. EAST FORK RUSSIAN RIVER NEAR UKIAH, CALIF. Continued

Suspended sediment, water year October 1965 to Septe 1966 Conti

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

lit.

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

digcharge

(cfs)

160

160

160

160

160

160

163

163

163

163

163

165

276

360

279

230

230

210

165

168

168

168

168

169

255

318

306

293

296

297

6296

Suspended sediment

Mean

concentration 

(ppm)

29

27

25

23

26

25

24

22

20

20

21

20

20

24

21

22

20

19

21

19

21

22

19

17

17

20

17

17

19

19

~

Tons

per 

day

13

12

11

9.9

11

11

11

9.7

8.8

8.8

9.2

8.9

15

23

16

14

12

11

9.4

8.6

9.5

10.0

8.6

B 7.8

12

17

14

13

15

B 15

355.2

JULY

244

244

244

244

244

244

244

244

244

244

226

213

213

213

210

209

209

221

227

236

241

250

255

255

255

255

254

253

251

251

251

73«8

20

 

--

24

18

20

--

14

--

16

19

~

~

19

20

16

14

 

20

12

 

5

~

13

13

14

16

13

12

13

13

12

11

8.5

8.6

9.2

9.8

11

11

11

11

12

10

9.8

9.4

11

12

14

11

8 2

6 1

3 4

3 4

2 7

323.1

MAY

Mean 

discharge

(cfs)

297

297

297

313

323

324

325

325

325

374

398

398

365

323

325

184

95

95

97

98

99

100

100

134

149

148

148

148

148

148

148

7048

Suspended sediment

Mean

concentration 

(ppm)

_

19

 

20

~

13

--

--

13

15

17

15

15

--

16

18

--

22

21

--

--

20

~

Ton*

per 

day

15

15

15

17

15

11

11

11

11

14

16

17

17

15

14

7.5

3.8

3.8

4.2

4.2

4.3

4.6

4.9

7.2

8.9

8.8

8.4

8.4

8.0

8.0

7.2

316.2

AUGUST

232

223

223

223

232

237

237

234

234

234

252

262

262

262

252

248

248

248

248

248

248

248

248

248

247

248

248

248

248

248

248

7566

4

--

9

 

4

_

4

 -

5

3

--

«

7

4

5

6

_

8

~

5

4

«

4

--

4

-

2.5

3.6

5.4

3.6

2.5

2.6

2.6

2.5

2.5

3.2

2.7

2.1

2.8

4.2

4.8

3.3

2.7

3.3

4.0

4.0

4.7

5.4

4.0

3.3

2.7

2.7

2.7

2.7

2.7

2.7

2.7

101.2

JUNE

Mean 

discharge

(cfs)

148

148

148

148

148

148

145

145

145

145

145

145

144

143

143

143

159

173

171

182

221

234

252

283

292

290

290

290

262

244

5674

Suspended sediment

Mean

concentration 

(ppm)

16

15

~

9

17

23

_

20

22

_

20

__

16

_

18

19

_

18

20

M_

 

~

Tons

per 

day

6.4

6.0

6.0

5.6

4*4

3.6

4.7

6.7

8.6

9.0

8.6

8.2

7.8

7.3

8.5

8.5

8.6

8.4

7.4

7.9

9.5

11

13

15

15

14

14

14

14

13

274.7

SEPTEMBER

248

248

248

248

248

248

248

248

248

248

248

248

248

248

248

245

244

244

244

244

244

244

244

244

244

244

244

244

244

244

7381

__

3

--

4

_

4

-_

5

_

3

»-

4

~

6

--

-_

4

4

__

4

__

6

6

_~

4

~

2.0

2.0

2.0

2.7

2.7

2.7

2.7

2.7

3.3

3.3

2.7

2.0

2.0

2.7

3.3

4.0

3.3

2.6

2.6

2.6

2.6

2.6

2.6

2.6

3.3

*.o

4.0

4.0

3.3

2.6

85.5

Total discharge for year (cfs-days) ..................................................... 117880.7

Total load for year (tons) .............................................................. 15055.6

B Computed from estimated-concentration graph.
RUSSIAN RIVER BASIN Continued 

11-4620. EAST FORK RUSSIAN RIVER NEAR URIAH, CALIF

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Dec. 30, 1965.....

Feb. 7.......... ..

Feb. 23. ..........

Time 

(24 hour)

1045 

1305 

1435 

1700 

1335

Water 

temperature 

(°F)

45 

49 

48 

47 

47

Sampling 

point

Discharge

(cfs)

1410 

558 

8.8 

1660 

17

Sediment 

concentration 

(ppm)

71 

66 

69 

70 

49

Sediment 

discharge 

(tons per day)

270 

99.4 

1.64 

314 

2.25

Perc

0.002 0.004 0.00

11-4625. RUSSIAN RIVER NEAR HOPLAND, CALIF.

LOCATION. Lat 39°01'35", long 123°07'45", temperature recorder at gaging station, in Rancho de Sanel 

4 miles north of Hopland, Mendocino County, and 17 miles upstream from Sulfur Creek. 

DRAINAGE AREA. 362 square miles, 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1965.

Water temperatures: September 1965.to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 72"F Aug. 20, Sept. 3, 4, 7, 8; minimum, 43°F Feb. 

EXTREMES, September 1965 to September 1966: Maximum, 72°F Aug. 20, Sept. 3, 4, 7, 8, 1966; minimum, 

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Nov. 10, 1965.... 

Jan. 13, 1966. . . .

Sept. 23. ........

Mean 

discharge 

(cfs)

A 454 

765 

750 

306 

199 

243

Silica 

(S10a)

11 

13

Iron 

(Fe)

Calcium 

(Ca)

18 

21

Magnesium 

(Mg)

9.2 

8.1

Sodium 

(Na)

7.2 

7.0 

7.7 

7.0 

6.0 

6.6

Potassium 

(K)

l.l 

.9

Blear - 

bonate 

(HCOj)

122 

92 

97 

98 

99 

104

Carbonate 

(CO,)

0 

0 

0 

0

1

0

Sulfate 

(S0«)

13 

8.0

Chloride 

(Cl)

3.4 

3.4 

3.2 

3.5 

2.8 

2.4

Fluorlde 

(F)

Ni

tra

(NO

1

A Discharge at time of sampling.
RUSSIAN RIVER BASIN Continued

11-4625. RUSSIAN RIVER NEAR HOPLAND, CALIF. C

Temperature (°F) of water, water year October 1965 t

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum ....

January 

Maximum ....

February

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May

Minimum ....

June

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum ....

September 

Maximum .... 

Minimum ....

1

67 

60

62 

59

53

46

48 

47

51 

49

67 

57

70

71 

64

2

67 

60

63 

58

52

45

48 

46

51 

49

66 

57

70

71 

65

3

66 

60

63 

59

52

44

47 

45

52 

49

62

56

67 

57

70

72

65

4

66 

61

64 

62

52

44

47 

47

52

50

65 

56

68 

57

72 

64

5

67 

63

63 

59

51

45

47 

46

52 

50

63 

58

67 

58

71 

63

6

69 

62

63 

58

50

44

48 

47

52

51

62

58

67 

58

70 

63

7

70 

63

62 

60

50

44

48 

47

52

51

63 

56

67 

58

68 

63

8

69 

63

62

60

51

43

48 

48

53 

51

66 

58

64 

58

71 

63

9 

66 

64

61 

58

51

43

48 

48

52

51

67 

59

63 

58

70

71 

63

10

68 

64

61 

57

50

44

48

47

52 

51

67 

61

66

57

70

70 

63

11

69 

63

61 

59

50

45

48 

47

52

51

69 

58

67 

57

70

70 

63

12

68 

62

59

58

49

45

48 

47

51 

50

69 

59

66 

59

70

69 

62

13

67 

62

58

56

50

44

48 

46

51 

49

69 

61

68 

59

70

68 

63

14

66 

62

57 

55

48

44

48 

47

51 

49

69 

63

67 

59

70

69 

62

15

64 

60

59 

56

48

44

48 

47

51 

49

69

63

67 

59

70

70 

63

Day

16

64 

59

59 

58

48

45

48 

47

52 

49

72 

64

67 

59

70

71 

62

17

66 

60

59 

59

47

45

48 

46

52

50

71 

64

68 

59

72 

64

18

65 

62

59 

58

48

46

48 

46

52

50

70 

63

68 

59

70

72 

66

19

66 

63

58

58

48

46

48 

46

52 

50

71 

63

68 

59

70

70 

62

20

65 

60

58 

57

47

46

48 

46

52

50

65 

59

69

60

72

70 

62
RUSSIAN RIVER BASIN Continued 

11-4630. RUSSIAN RIVER NEAR CLOVERDALE, CAL

LOCATION. Lat 38°52'55", long 123 0 03'15", at gaging station at Lambert Ranch, 400 f

northwest of Cloverdale,- Sonoma County. 

DRAINAGE AREA. 502 square miles. 

RECORDS AVAILABLE. Water temperatures; November 1963 to September 1966.

Sediment records: November 1963 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 2,670 ppm Jan. 5; minim

Sediment loads: Maximum daily, 179,000 tons Jan. 5; minimum daily, 3.0 tons May 2

EXTREMES, 1964-66. Sediment concentrations: Maximum daily, 4,600 ppm Dec. 23, 1964

Sediment loads: Maximum daily, 495,000 tons Dec. 22, 1964; minimum daily, 1.9 ton

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July

Minimum .... 

August

Minimum .... 

September 

Maximum .... 

Minimum ....

1

67 

68 

63

52

42

49 

44

51 

48

63

60

62

59

63

60

63 

59

72 

66

2

66 

63

44

49 

48

52

51

63

60

62

59

63 

60

64 

61

72 

67

3 4

65 65 

62 63 

62 ~

50 -

5

68 

64 

62

6 7

68 68 

64 64

-

42 49 52

49 

46

52

51

64

60

61 

59

62

59

64 

62

72 

68

53

OlO>0> 1

9110

-

58

-

60

 52 52 

55 50 50 49 44

12 13

68 67

 60

52 50 48

44 45 49

50 

46

52

50

64 

62

61 

58

63 

59

51 

49

51 

48

64

60

61

60

63

61

50 

47

51 

50

64

61

50 

47

51 

50

64

60

 

63 62

61 57

65 

62

65 

62

65 

62

72 72)70 

68 68 67

48 48 

46 46

53 

50

64 

60

53 

52

63 

61

 __

64 

60

i

1

65 

62

68 

66

65 

62

66 

62

48 

46

53 

53

61 

59

58 

56

66 

64

1

64 

62

70 70 

64 66

64 

62

71 

66

50 49 51 

46 47 48

53 54 

53 52

60 

59

59 

55

66 

63

59 

57

60 

56

67 

63

64 64 

60 61

64 

61

69 

65

63

61

67 

63

55 

53

61

57

60

57

68 

64

64 

61

63

61

65 

63

14~T

 h

15 

62

Day

 r 

16

57 59 59

-

52

47 ~

52 50

17

60

45

49

18 | 19 

66 [ 

20

65

56 56 56

46 45

48 49 48

50 

47

55 

54

61

58

71 

66

64 

61

63

60

67 

62

50 51 

47 48

55 

53

62

59

58

55

72 

68

64 

61

63 

61

68 

63

56

55

64

60

59 

56

69 

65

65 

61

63

61

69 

63

52 

48

56 

55

64 

62

62

56

69 

65

65

60

64 

62

71 

66

52 

49

52

51

55 55 

54 53

64 

60

65

59

63 

60

62 

66

68 68 

65 65

63

60

65 

62

64

60

65 

62

70 ' 69 

67 65

51 

50

55 

53

63 

59

64 

66

68 

64

64

60

66

69 

66
QUALITY OF SURFACE WATERS, 1966

RUSSIAN RIVER BASIN Continued 

11-4630. RUSSIAN RIVER NEAR CLOVERDALE, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean

discharge

(cfs)

246

247

249

249

246

246

247

267

376

403

414

420

306

268

260

249

260

260

260

260

256

256

252

256

253

253

256

256

260

293

302

8626

Suspended sediment

Mean 

concentration 

(ppm)

14

28

33

22

16

9

13

13

9

11

18

--

10

~

Tons 

per

day

3

3

4

4

3

12

19

22

34

27

25

23

13

8.7

6.3

6.1

8.4

9.1

9.1

9.1

7.6

6.2

6.1

6.9

7.5

10

12

10

7.0

7.9

8.2

367.9

JANUARY

2310

1680

2840

17300

21700

8110

7000

6050

5320

4910

4630

3660

1330

1010

872

792

712

624

554

500

452

400

355

305

270

255

240

218

2040

5040

2810

104289

170

120

247

2350

2670

911

1120

920

650

500

330

111

56

34

20

16

17

15

13

10

10

13

15

10

--

10

1000

881

370

-

1060

544

S 2110

S 147000

S 179000

S 20100

21200

15000

11000

8620

6250

3260

399

153

80

43

31

29

22

18

12

11

12

12

8.7

6.9

6.5

5.9

S 10300

S 13400

S 3030

442724.0

NOVEMBER

Mean

discharge

(cfs)

302

306

306

306

306

306

316

335

320

316

316

325

564

1170

1610

2120

2580

3930

2960

1030

756

624

403

1390

1820

1250

918

654

534

436

28509

5690

4390

4940

7300

6040

5110

4410

3890

3060

1480

1160

970

824

728

640

568

518

488

1200

824

648

616

672

776

980

1380

1020

872

61194

Suspended sediment

Mean 

concentration 

(ppm)

10

10

11

_

20

15

9

_

15

259

967

468

310

380

897

440

110

_

40

339

570

330

 -

51

-

Tons 

per 

day

8 2

8 3

8 3

8 3

9 1

9.1

13

18

13

7.7

8.5

13

K 567

S 3070

S 2100

1770

S 2970

S 9720

K 3760

306

100

67

33

S 1400

K 2840

K 1220

250

97

74

29

30497.5

FEBRUARY

761

240

398

907

610

560

320

240

260

100

46

25

17

11

14

17

27

317

59

24

24

29

45

92

345

42

27

-

S 11600

2840

S 6270

S 18100

9950

7730

3810

2520

2150

400

144

89

56

33

19

21

24

36

S 1100

131

42

40

53

94

K 265

S 1380

116

64

~

69077

DECEMBER

Mean

discharge

(cfs)

360

311

280

260

242

232

216

228

355

408

442

528

469

452

442

430

425

420

420

414

414

408

403

1120

1440

990

822

6020

4360

2730

3340

29381

1070

2230

1990

970

1020

990

940

920

1590

2280

1830

1420

1390

1290

1480

1630

1500

1360

1270

1190

1160

1080

920

856

777

730

695

657

578

501

468

36782

Suspended sediment

Mean 

concentration

(ppm)

11

6

7

11

43

_

50

23

20

__

16

17

. 

11

__

11

. 

649

595

70

50

2010

1080

332

425

Tons 

per 

day

11

5.9

4.5

4.2

3.9

4.4

4.7

6.8

41

46

41

71

29

24

24

21

18

19

18

12

12

12

12

S 2930

K 2440

187

111

S 41100

S 13900

S 2560

S 3880

67553.4

MARCH

44

245

150

55

42

44

34

320

330

100

78

60

51

62

70

47

38

37

32

__

31

29

30

25

_

21

20

19

18

S 193

1480

806

144

110

112

112

84

S 1740

S 2100

494

299

225

178

248

308

190

140

127

103

94

90

72

69

52

43

39

37

31

26

23

9769

S Computed by subdividing day.

K Computed from estimated-concentration graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

RUSSIAN RIVER BASIN Continued

11-4630. RUSSIAN RIVER NEAR CLOVERDALE, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6.«

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4«.

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

digcharge

(cfs)

450

434

422

409

407

399

394

385

397

432

559

964

678

726

660

526

498

474

413

392

379

372

362

350

349

435

441

424

416

410

13957

Suspended sediment

Mean

concen-

(ppm)

16

19

18

13

17

21

15

33

192

58

35

31

28

22

19

~

19

17

16

__

36

-

Tons

per 

day

19

22

21

14

19

23

22

19

16

19

S 52

S 530

106

69

55

40

34

28

21

19

19

17

16

15

15

25

40

41

30

23

1389

JULY

222

221

224

228

222

215

214

212

213

219

221

197

186

183

185

184

185

187

197

197

210

212

222

225

226

228

228

227

227

226

226

6569

12

15

18

21

15

12

14

_

14

15

_

13

15

_

14

16

"

9 0

7 2

7 9

9 2

9 6

10

12

12

12

11

.0

.9

.0

.4

.0

.0

.0.1

.4

.0

.9

.4

.8

8.5

9.2

8.6

8.6

8.6

9.8

9.8

9.2

267.1

MAY

Mean 

discharge

(cfs)

406

401

395

394

410

411

404

403

403

415

457

457

451

397

383

368

222

191

173

164

152

147

138

128

154

159

153

156

156

165

161

8974

Suspended sediment

Mean

concentration

(ppm)

_

20

21

21

23

26

 

31

~

21

11

8

8

11

_

10

10

11

~

Tons

per 

day

22

22

21

22

23

23

23

24

25

28

32

36

38

31

25

21

11

8.3

.1

.5

.3

.2

.0

.1

.6

.7

.5

.2

.2

.5

.8

488.0

AUGUST

229

208

203

198

199

213

216

216

217

218

227

248

254

257

257

2*5

245

244

242

239

241

246

241

233

242

234

230

231

228

230

230

7161

9.3

8.4

8.2

8.0

8.1

8.6

8.7

8.7

8.8

8.8

9.2

10

10

10

10

.9

.9

.9

.8

.7

.8

1 .0

.8

.4

.8

.5

.3

.4

.2

.3

.3

288.8

JUNE

Mean 

discharge

(cfs)

156

156

157

158

160

163

162

156

149

147

145

146

147

138

133

124

123

Suspended sediment

Mean

concentration

(ppm)

11

11

11

11

_-

11

 .

11

__

13

13

15

17

146 ;

154

162

170

200

209

229

255

269

272

266

263

232

5347

22

_

30

22

~

_

24

23

-

Tons

per 

day

4.6

4.6

4.7

4.7

4.8

4.8

4.8

4.6

4.4

4.4

4.3

4.7

5.2

5.2

4.7

5.0

5.6

7.1

7.9

9.6

12

16

15

14

14

16

18

17

16

13

256.7

SEPTEMBER

226

222

218

226

231

226

226

231

231

226

231

231

231

236

231

231

231

231

236

231

222

226

226

225

225

225

225

225

225

225

~

6832

.2

 0

.8

.2

.4

.2

.2

.4

.4

.2

 4

.4

.4

.6

.4

.4

.4

.4

.6

.4

.0

-

.2

.1

.1

.1

 1

.1

.1

.1

268.3

Total discharge for 

Total load for year

year (cfs-days). 

(tons)..........

317621

622946.7

S Computed by subdividing day.
RUSSIAN RIVER BASIN Continued 

11-4630. RUSSIAN RIVER NEAR CLOVERDALE, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

_____________________P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Nov. 15, 1965. ....

Dec. 28.... .......

Jan. 5, 1966..... .

Jan. 29. ..........

Time 

(24 hour)

1300 

1100 

1700 

0900 

1700 

1700

Water 

temperature 

(°F)

59 

47 

45 

52 

54 

48

Sampling 

point

Discharge 

(cfs)

1410 

6360

gg40

26500 

14300 

4080

Sediment 

concentration 

(ppm)

172 

2370

2gso

3100 

1740 

1920

Sediment 

discharge 

(tons per day)

655 

40700 

80000 

221800 

67180 

2150

Perce

0.002

2g 

22

32

0.004

45 

40

2g

35 

38

0.008

50 

38

48

11-4640. RUSSIAN RIVER NEAR HEALDSBURG, CALIF

LOCATION. Lat 38°36'48", long 122°50'07", temperature recorder at gaging station in Sotoyome Grant, 

upstream from Dry Creek. 

DRAINAGE AREA. 793 square miles. 

RECORDS AVAILABLE. Chemical analyses: October ig53 to September ig65.

Water temperatures: October ig65 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F June ig, Aug. 6, 7; minimum, 43°F Dec. 21-23, 

Chemical analyses, in parts per million, water year October ig6

Date 

of 

collection

Nov. 10, 1965. . . .

Jan. ig, igee. . . .

May 3 ............

July 12...... ....

Sept. 23. ........

Mean 

discharge 

(cfs)

327 

1400 

1320 

487

igg

200

Silica 

(SiO,)

13 

13

Iron 

(Fe)

Calcium 

(Ca)

26 

25

Magnesium 

(Mg)

13 

13

Sodium 

(Na)

8.4 

8.2 

7.7 

8.8 

8.2 

8.0

Potassium 

<K)

l.l 

1.2

Blearbonate 

(HCO,)

134 

146 

122 

145 

139 

140

Carbonate

(CO,)

4 

0 

3 

0 

4 

0

Sulfate

<so«)

14 

11

Chloride 

(CD

4.3 

3.8 

3.1 

5.2 

3.8 

3.2

Fluoride

(F)

Ni

trat

(NO

1
RUSSIAN RIVER

11-4640. RUSSIAN RIVER NEAR 

Temperature (°F) of water, water

BASIN Continued

HEALDSBURG, CALIF. 

year October 1965 t

Month

October 

Maximum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Minimum ....

February

Maximum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

August

Minimum ....

September

Maximum ....

Minimum ....

1

53

51

46

48

49

48

65

60

71

61

68

63

77

77

74

69

2

 _

53

5?

45

47

48

46

64

58

72

62

68

63

76

77

74

70

3

__

53

5?

47

47

47

45

65

Day

4

_..

57

52

5 678 9 10

64

 61 60 62 60 60

 57 59 59 58 56

53

52

49 ' 51

49

47

45

67

58|59

69

62

67

63

76

73

74

70

70

62

69

64

77

77

7 *

50

49

47

64

58

66

61

68

67

77

54 57

52 51

53

50

52

49

60

57

70

61

52 57 5?

51 51 51

53 52 50 49

48

53

52

64

58

71

62

67 69

65 63

76 ' 75

77 74

74|72

70 70J69

74

70

69

47 48 49

53

52

65

58

71

67

72

67

74

74

71

67

57

5?

60

57

65

61

74

69

72

74

7?

67

11 12

62 60

59 59

57

50

52

13

59

57

51

50 49

47 47 47

49 49 48

53 53 53

5?

58

56

63

60

74

69

75

77

7?

68

5?

59

56

69

60

73

68

75

7?

7?

68

52

54

14 15 16

58 59 59

56 58 58

49

47

48

48

55

53 54

1 i

60 61 (64

55 54

71

62

74

69

75

71

68

65

71

67

78

72

76

71

68

65

57

69

61

79

75

76

70

67

63

47

45

17

59

58

46 46

44 44

49 '49

48

55

53

fifi

60

71

60

79

75

76

71

69

63

49

46

54

51

67

61

72

61

48

49

53

50

64

59

73

62

78 78

73 72

76 77

7?

71

63

74

77

18 19J

59

20 

~ 

58

57 57

46 46

58

57

46

44 44 '44

47 47 46

49 50

49

53

51

54

51 52

65 ] 65

59 | 58

74

63

74

62

78 79

73 75

!

78 78

74

77

64 68

54

52

65

57

74

63

76

72

77

72 ,71

72 71

65 64
RUSSIAN RIVER BASIN Continued

11-4645. DRY CREEK NEAR CLOVERDALE, CALIF

LOCATION. Lat 38°44'59", long 123°05'28", temperature recorder at gaging station on

Smith Creek, and 5 miles southwest of Cloverdale, Sonoma County. 

DRAINAGE AREA. 87.8 square miles.

RECORDS AVAILABLE. Water temperatures: May 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 92°F Aug. 6, 7.

EXTREMES, May 1965 to September 1966. Water temperatures: Maximum, 92°F Aug. 6, 7, 

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

Minimum ....

November 

Maximum ....

Minimum .... 

December 

Maximum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

47

46

49

47

52

45

70

55

73

59

80

64

90

63

83

60

2

50

47

49

48

51

44

69

56

_.

-.

72

59

80

63

87

64

84

60

3

52

50

49

48

51

42

70

56

__

73

59

82

63

86

64

84

62

4

~~

53

52

50

49

47

43

66

59

76

59

83

64

89

65

86

60

5

53

50

52

50

51

46

69

58

75

60

63

59

82

65

90

65

82

61

6

71

60

7

72

61

54 55

52

52

49

56

49

64

59

71

62

75

59

80

66

92

65

80

62

8

70

62

9 10

65

63

63

56

55

54 53

53

50

51

48

55

50

70

57

67

63

75

57

82

65

92

64

73

61

50

46

54

51

68

57

76

61

75

60

73

66

90

63

83

60

51

48

52

51

60

57

79

63

81

63

76

65

89

65

64

58

70

6 3

62

56

52

49

52

48

55

51

62

56

63

61

80

65

77

64

89

64

64

58

1 1

68

60

64

58

51

12

68

60

60

58

50

48 46

50

46

56

51

60

55

67

60

62

66

78

64

86

65

80

58

51

46

55

50

66

53

76

59

81

65

79

62

84

62

80

56

13

68

60

58

57

50

46

51

45

59

52

68

53

75

59

84

65

80

63

84

63

72

58

14

64

59

58

57

50

46

51

45

56

52

70

54

73

61

87

67

83

65

86

62

82

55

-15

59

58

51

47

51

45

54

50

72

55

72

58

64

69

83

64

88

62

83

55

16

59

5 8

44

38

48

44

52

45

55

47

74

57

74

59

82

68

83

64

90

64

85

55

17

59

55

44

37

48

43

52

45

55

45

71

59

74

59

83

66

83

65

90

64

87

59

18

57

55

44

38

47

42

49

47

55

45

70

56

76

60

83

67

83

66

87

64

82

64

19

58

55

48

44

53

48

59

48

70

55

77

62

82

66

84

65

84

63

81

61

20

58

54

47

42

54

49

57

47

69

53

77

63

78

65

64

65

84

64

80

60
RUSSIAN RIVER BASIN Contiri

11-4652. DRY CREEK NEAR GEYSERVILLE, CALI

LOCATION. Lat 38°41'55", long 122°57'25", at gaging station in Tzabaco Grant, 0.3 m

of Geyserville, Sonoma County. 

DRAINAGE AREA. 162 square miles. 

RECORDS AVAILABLE. Water temperatures: March 1964 to September 1966.

Sediment records: March 1964 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F Oct. 6; minimum, 43°F on seve

Sediment concentrations: Maximum daily, 8,230 ppm Jan. 4; minimum daily, 1 ppm on 

Sediment loads: Maximum daily, 293,000 tons Jan. 4; minimum daily, less than 0.05 

EXTREMES, 1964-66. Water temperatures; Maximum, 77°F Sept. 15, 30, Oct. 6, 1965; m

and December 1965.

Sediment concentrations: Maximum daily, (estimated) 15,000 ppm Dec. 22, 1964; min

Sediment loads; Maximum daily, (estimated) 830,000 tons Dec. 22, 1964; minimum da

Temperature (°F) of water, water year October 1965 to 

October 

Maximum .... 

Minimum .... 

November

December 

Maximum ....

Minimum .... 

January 

Maximum ....

February 

Maximum ....

March 

Maximum .... 

Minimum .... 

April

May 

Maximum .... 

Minimum ....

July

August 

Maximum ....

September

Minimum ....

1

75 

59

48

51

52

47

70 

57

67

2

74 

59

48

51

52 

45

70 

58

66

3

74 

58

51

50

52 

44

65 

62

70

4

70 

60

53

53

48

45

70 

59

68

5

72 

62

55

53

52 

48

62

59

66

6

77 

61

56

52

56 

50

68 

60

65

7

74 

61

56

51

55 

51

68 

61

68

8

72 

62

55

50

55 

52

67 

61

70

9

65 

63

53

51

53 

52

65 

61

70

10

72 

62

53

52

57 

52

63 

60

70

1 1

73 

61

52

49 

52

50

57 

50

68

60

70

12

72

60

51

52

52

56 

51

68 

60

70

13

72 

60

52

51

60 

53

68 

61

72

74

14

64 

59

52

51

56 

53

66 

58

74

74

15

67 

58

53

51

55 

52

67 

59

73

74

Day

16

66

57

52

52

56 

49

67 

59

72

74

17

67 

57

51

52

55 

47

68

60

73

74

18

65 

59

51

49

54 

49

69 

61

74

74

19

69 

59

51

52

58 

51

68 

63

74

74

20

68

58

51

53

57 

48

69 

63

72

73
QUALITY OF SURFACE WATERS, 1966

RUSSIAN RIVER BASIN Continued 

11-4652. DRY CREEK NEAR GEYSERVILLE, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966

(Where no concentrations are reported, loads are estimated)

| OCTOBER NOVEMBER

Suspended sediment

Mean v \ 

DaV dis- Mean Tong

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

13..

charge 

(cfs)

1.0

1.0

1.0

1.0

1.4

1.9

2.2

tration 

(ppm)

per

day

2.6

2.7

2.9

2.9

2.7

13.. 2.5

14.. 2.2

15..

16..

17..

18..

19..

20..

21..

22..

23..

2.0

2.0

2.1

Mean 

discharge 

(cfs)

1.3

1.3

1.4

1.5

1.5

1.5

2.0

7.0

17

14

13

17

600

1700

1270

' 402

2.2

2.2

2.2

2.2

2.0

1.8

24.. 1.7

25.. 1.6

26.. 1.4

27.. 1.3

28.. 1.2

29.. 1.2

30.. 1.3

31..

Total

1.3

57.7 0.9

JANUARY

1.. 964 1100

2.. ! 745 380

3.. 991 743

4.. ' 9580 8230

5.. 10400

6.. 3560

7.. 2180

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

1560

1140

904

730

612

526

454

2860

764

S 2410

S 293000

6400 S 203000

1570 S 16400

640 3770

520 2190

415 1280

320

200

150

62

60

398 56

3*2 48

300 45

615

1110

695

Suspended sediment

Mean

concentration 

(ppm)

_

~_

«

39

15

__

5

2650

1200

138

824

1240

386

370 82

246 68

182 50

152 25

718

648

454

363

279

216

180

10278.5

717

200

Tons

per

day

T

0.1

.7

.9

.6

.3

.2

490

12200

4110

S 168

K 2870

K 3860

S 780

82

45

25

10

S 1490

350

160 196

160 157

70 53

34

24

~

20

12

26920.9

FEBRUARY

1870 2200

1230 530

1790 1390

4430 1120

2530 600

1620 500

DECEMBER

Mean 

discharge

(cfs)

152

136

122

110

98

89

82

77

72

68

79

193

130

110

Suspended sediment

Mean

concentration

(ppm)

17

12

10

8

7

1

Tons

per 

day

7.0

4.4

3.3

2.4

B 1.9

B 1.7

6 1 1.3

5

5

6

8

108

17

9

100 5

93 3

84 4

74 7

69 5

60 3

59 3

B 1.0

1.0

1.1

S 2.1

S 60

S 6.1

2.7

1.3

.8

.9

1.4

.9

.5

.5

58 2 .3

56 2 ' .3

676 806 'K 3270

750 479 IS 1010

430 420 488

363 144

3870 3800

2280 1250

1390 650

1330 1250

13260 

S 140

S 48600

S 8210

2440

S 4520

68780.9

MARCH

S 11900 390 33 35

1760 ; 349 44 41

K 11100 321 49 42

K 14000 297 38 30

4100 282

2190 267

1180 i 260 828 252

958 | 150 388 240

780 1 112 236 668

781 661 88 157 810

394 553 72 108

248 486 1 68 89

88 430 i 62 72

74 386 50 52

60 3*6 52 | 49

44

36

279 39 29

255 23 16

234 15 9.5

222 13 7.8

210 13 7.4

200 10 5.4

24.. 185

25.. 170

26..

27..

28..

29..

30..

31..

Total

162

158

150

1100

2520

1300

42531

12 6.0

11 B 5.0

7 3.1

6 2.6

4 1.6

2560 K 15100

2670 S 19500

1450 5090

567182.4

318 70

291 310

282 430

925 555

580 240

466 i 170

450

446

458

486

548

458

422

25380

135

88

91

69

56

56

42

~

. 

60

244

327

S 1500

376

214

164

106

S 113

K 91

83

69

48

. 

50424

566

474

474

406

394

39 30

49 35

45 31

34

390

281

240

148

162

113

112

394 98

349 65

314 58

22

K 990

K 615

367

189

207

124

119

104

61

49

297 73 59

273 43 32

261

249

231

216

202

192

182

172

1 165

, 156

152

9995

33 ' 23

32 22

26 16

24

24

31

20

14

10

12

19

~

14

13

16

9.8

6.5

4.5

5.1

7.8

3319.7

S Computed by subdividing day.

T Less than 0.05 ton.

B Computed from estimated-conce itration graph.

K Computed from estimated-concentration 

raph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

RUSSIAN RIVER BASIN Continued

11-4652. DRY CREEK NEAR GEYSERVILLE, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

Total

Total

Mean

discharge

(cfs)

148

142

140

134

132

130

126

120

126

154

154

234

160

142

132

122

114

110

102

96

95

89

86

80

74

74

77

72

68

68

3501

7.

7.

6.

6.

6.

5.

5.

5.

5.

5.

4.

4.

4.

4.

4.

4

3.

3.

3.

3 «

3.

3.

3.

2.

2.

2.

2.!

2.

2.

2.

2 .

130.2

discharge

load for j

APRIL

f Suspen

Mean 

concentration 

(ppm)

13

19

14

11

10

11

14

10

298

60

11

11

9

__

6

7

~

JULY

3

~

for yeai

rear (tor

ded sediment

Tons 

per

day

5.2

4.6

4.5

4.7

6.8

B 4.9

B 3.7

3.2

B 3.7

B 5.8

B 4.2

S 188

B 26

B 4.2

3.9

3.6

3.1

3.0

2.5

2.3

2.3

1.4

1.9

1.7

1.6

1.4

1.5

1.4

1.3

1.3

303.7

 __ 

0.1

.1

.1

.1

.1

.1

.1

1.4

 (cfs-days) .

is)..........

Mean

discharge

(cfs)

63

60

58

58

44

55

56

53

52

56

56

52

41

41

41

41

39

36

33

32

33

31

29

29

29

26

25

27

27

28

28

1279

1.9

1.8

1.

1.

1«

1.

1.

1.

1 

4

.

.

.

4

,

.

.

,

.

.

,

,

,

.

.6

.6

.6

26.7

MAY

Suspen

Mean

tration

(ppm)

6

~

g

10

_

6

--

_

4

~

~

5

_

5

_

6

3

AUGUST

1

ded sediment

Mean

Tons d'"- 

per charge 

day (cfs)

1. 28

1. 28

. 25

. 23

. 23

1. 23

1. 24

1. 24

1. 23

1. 20

1. 18

1. 17

. 15

. 14

. 14

. 14

13

. 13

. 12

. 12

. 11

. 11

. 10

. 9.7

. 9.3

9.0

. 8.6

. 8.2

. 7.8

. 7.5

.2 

21.5 475.1

S

0.6

.6

.6

.5

.5

.5

.6

.5

.5

.4

.4

.4

.4

.4

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

> 1

1 .1

0.1 9.0

JUNE

Suspended sediment

con^n- Tons 

tration per 

(ppm) , day

0.3

 .4

6j .4

 1 .4

.5

.6

10 .6

 .3

2 .1

15 .8

.6

 .6

 .4

9 .3

 .4

.3

7 .2

.2

 .2

.2

5 .1

 .1

.1

5 .1

.1

.1

.1

5 .1

 .1

 .1

8.8

EPTEMBER

T

....... 106923.2

....... 716964.3

S Computed by subdividing day.

T Less than 0.05 ton.

B Computed from estimated concentration graph.
RUSSIAN RIVER BASIN Continued 

11-4652. DRY CREEK NEAR GEYSERVILLE. CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Nov. 26. ..........

Dec. 28.. .........

Dec. 30. ..........

Dec. 31. ..........

Jan. 4.. ..........

Jan . 5 ............

Jan . 7 ............

Feb. 1.......... ..

Feb. 23.. .........

Feb. 24. ..........

Time 

(24 hour)

0800 

0830 

1045 

1000 

1700

0930 

0845 

0945 

0930 

1145

0900 

0900 

1645 

1520 

0830

0830 

0830 

0930 

1250 

0830

Water 

temperature 

(°F)

58 

50 

48 

55 

55

54 

47 

47 

47 

52

54 

55 

55 

54 

47

49 

49 

51 

52 

49

Sampling 

point

Discharge 

(cfs)

1650 

952 

438 

374 

71

3350 

1400 

1370 

988 

9700

10900 

3640 

1990 

2020 

144

3180 

1210 

450 

446 

486

Sediment 

concentration 

(ppm)

1420 

1080 

149 

187 

11

6850 

681 

1120 

1290 

7060

6990 

1580 

618 

444 

11

3030 

281 

88 

68 

124

Sediment 

discharge 

(tons per day)

6330 

2780 

176 

189 

2.1

62000 

2570 

4140 

3440 

185000

206000 

15500 

3320 

2420 

4.3

26000 

918 

107 

82 

163

Perc

0.002

17 

19

0.004

25 

24

27

0.00

3

3
RUSSIAN RIVER BASIN Continued

11-4670. RUSSIAN RIVER NEAR GUERNEVILLE, CALIF

(Formerly published as Russian River at Guerneville, 

LOCATION (revised). Lat 38°30'00", long 122°56'05", temperature recorder at gaging station on left b

of Guerneville, Sonoma County. 

DRAINAGE AREA. 1,340 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1965.

Water temperatures: January 1964 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F July 19, 20; minimum, 42°F on several days dur

EXTREMES, 1964-66. Water temperatures: Maximum, 83°F June 24, 1964; minimum (1965-66), 42°F on seve

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Jan. 11, 1966....

Sept. 21.........

Mean 

discharge 

(cfs)

360 

7850 

1180 

610 

178 

208

Silica 

(S102)

13 

13

Iron

(Fe)

Calcium 

(Ca)

28 

27

Magnesium 

(Mg)

15 

15

Sodium

(Na)

18 

6.8 

10 

11 

11 

11

Potassium 

(K)

l.l 

1.4

Blcarbonate 

(HCO,)

154 

98 

157 

156 

157 

156

Carbonate 

(CO,)

0 

0 

0 

0 

4 

0

Sulfate 

(S0«)

15 

12

Chloride 

(Cl)

14 

4.0 

5.2 

6.0 

6.6 

6.4

Fluorlde 

(F)

Nitrat

(NO

2.

1.

A Calculated from determined constituents.
QUALITY OF SURFACE WATERS, 1966

eg EE EE EE EE 33£33;-33 33 3 3

S S-Q S 6^ E g S E >-6 S
RUSSIAN RIVER BASIN Continued 

11-4670. RUSSIAN RIVER NEAR GUERNEVILLE, CALIF. 

Periodic determinations of suspended-sediment discharge and particle size, w

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; u, 

P, pipet; S, sieve; V, visual accumulation tube; W, in dist

Date of collection

Nov. 12, 1965.....

Nov. 14. ..........

Nov. 18. ..........

Nov. 19. ..........

Nov. 26. ..........

Dec. 6. ...........

Feb. 24. ..........

Mar. 14... ........

Mar. 29... ........

Apr. 3......... ...

May 9... ..........

May 11. ...........

May 13.. ..........

May 18... .........

May 23. ...........

Time 

(24 hour)

1530 

0905 

0830 

1155 

0830 

0845

0815 

0845 

0915 

1400 

1100 

0935

1500 

1115 

0930 

0920 

0900

1225 

1600 

1600 

1700 

1400 

1600

1600 

1600 

1700 

1215 

1405 

1035

1350 

1520 

1040 

1520 

1315 

0950

Water 

temperature 

(°F)

59 

56 

57

57 

58

56 

55 

49 

48

52 

49 

50 

49 

45 

42

52 

51 

52 

57 

58 

62

61 

61 

59 

66 

66 

64

67 

70 

68 

76 

72 

64

Sampling 

point

Discharge

(cfs)

335 

566 

6640 

8870 

7880 

4370

3970 

7770 

9180 

1620 

5740 

5100

3370 

2010 

1050 

629 

902 

6940

2570 

2730 

2450 

1920 

1400 

1260

968 

888 

1620 

606 

603 

582

617 

624 

526 

389 

305 

255

Sediment 

concentration 

(ppm)

66 

71 

1410 

1260 

772 

404

184 

738 

700 

50 

220 

154

105 

41 

24 

20 

25 

181

41

51 

38 

27 

20 

20

14 

13 

30 

21 

18 

18

42 

25 

17 

11 

17 

16

Sediment 

discharge 

(tons per day)

60 

109 

25300 

29800 

16400 

4770

1970 

15500 

17400 

219 

3410 

2120

955 

223 

68 

34 

61 

3390

284 

376 

251 

140 

76 

68

37 

31 

131 

34 

29 

28

70 

42 

24 

12 

14 

11

Pe

0.002 0.004 0
RUSSIAN RIVER BASIN--Continued 

1J-4670. RUSSIAN RIVER NEAR GUERNEVILLE, CALIF. C

i Periodic determinations of suspended-sediment discharge and particle size, water y

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

July 6..... .......

Aug. 18.... .......

Time 

(24 hour)

1820 

1615 

1815 

1740 

1400 

1615

1525 

1955 

0815 

0810 

0740 

0815

0820 

0645 

0820 

0730 

0840 

0745 

0735 

1415 

0935

Water 

temperature 

(°F)

67 

72 

68 

68 

65 

64

72 

76 

72 

78 

78 

66

66 

78 

78 

74 

72 

70 

70 

73 

72

Sampling 

point

Discharge 

(cfs)

178 

183 

203 

195 

183 

173

180 

160 

144 

130 

116 

110

116 

132 

165 

173 

170 

178 

173 

160 

175

Sediment 

concentration 

(ppm)

17 

19 

23 

30 

46 

28

15 

15 

15 

21 

23 

15

28 

36 

22 

27 

29 

27 

34 

18 

25

Sediment 

discharge 

(tons per day)

8.2 

9.4 

13 

16 

23 

13

7.3 

6.5 

5.8 

7.4 

7.2 

4.5

8.8 

13 

9.8 

13 

13 

13 

16 

7.8 

12

Perc
PACIFIC SLOPE BASINS IN CALIFORNIA

 H 0

 p 3

a o

> * * * II

\ -J .J * II

_ 3 3 3 

W rt rt rt

v v .<io m 

a > < j to to

f «<W "

j< rtrt 

< . .

5.9

ss ss ss ss se ss se ee 

1 i I i > ! i II 11 II
NAVARRO RIVER BASIN

11-4680. NAVARRO RIVER NEAR NAVARRO, CALIF.

LOCATION. Lat 39°10'15", long 123°39'55", temperature recorder at gaging station 2.7 miles downstrea

miles west of Navarro, Mendocino County. 

DRAINAGE AREA. 303 square miles. 

RECORDS AVAILABLE. Chemical analyses: January 1959 to July 1965.

Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F Aug. 20.

Chemical analyses, in

Date 

of 

collection

Nov. 12, 1965. .. . 

Jan. 14, 1966....

May 17 ...........

July 20. .........

Mean 

discharge 

(cfs)

63 

560 

630 

63 

13

Silica 

(Si02)

16

Iron

(Fe)

Calcium 

(Ca)

26

Magnesium 

(Mg)

10

Sodium

(Na)

13 

8.6 

12 

12 

13

parts per million, water year October 1965 

Potassium 

(K)

1.4

Bicarbonate 

(HCO,)

150 

85 

85 

136 

142

Carbonate 

(CO,)

3 

0 

0 

0 

4

Sulfate 

(SO,)

12

Chloride 

(Cl)

8 . 2 

5.8 

11 

7.9 

7.4

Fluoride 

(P)

Nitrat

(NO

0.
PACIFIC SLOPE BASINS IN CALIFORNIA

0) w O)

OC

<

n

0

0

OD

CN

CN

CN

CN

CN

CN

CN

0

0

2

^

& o

Q -

£

^t

"

I "

^

0

OD

 O

^

n

CN

-

 s

N« II 04 II 1 II 1 

.cm ii * * li i || I

ON* II 00 1- II 1 II 1 mm 1 I 4- 4 II 1 ll 1

orn ! I * * ii i ii i

ss ! ! ss i i i : : :

<OU\ II * -I II 1 II 1

,-im il m .» ii i li l 

.cm ll -J * ll I il 1

>-4<O || «£ rn || | || 1

>O m II * * II 1 II 1

3E ! ! S31 ! ! ! ! ! !

.H m II NO> II 1 ll 1

.-im | 1 rHOJ 1 1 1 II 1

.-im || .-( 0. || | || |

,om ii * en ii i ii i

.-..0 || OCX II | II 1

J- 03 l| rHO. l| 1 l| 1

.cm ll # to il l ii l

 oir\ ii *<n ii i || i

u\m ii .» eo ii i ii i

mm ll * * II 1 II 1

 -I * II <*> N II | II |

>om il * * ll 1 ll 1

Sm i ! S3 ! i ! S ! !

rgr- || coin 1 | 1 1 | 1 

 om 1 i * * II l || 1

<«l- 1 1 000 II 1 || |

<om li in* II l II 1

.0 m m m * -d* 11 1 II 1

m ox i~- .» .-i o. ll l || l

om m* mm ! 1 ! ! ! I

m Ov CO O * m II 1 II 1

mcoi^-oj-m || | || |

in«>r~«ll II 1 II 1 

 emmirt II II 1 II 1

Sm SS 1 i rn£ 1 ! ! !

O4)<NO> II Nto 1 II 1

i£m.cm II m* l ll 1

 t o o-o II cor- 1 || l

tommm li «« i li i

j -o oo<n ii r-4> 1 ll 1 

.em mm II 44 I II I

EE.EE EE 66 ee e e 6 E 33J133V-33 33 33 33 3-

u E E-Q E E^ 6 E ^E E > E E EE SE

2 ^ ^ ^ ^ "^ 0 ^ ^ -^ ^ ^ i?'^*? ^"S*^ C*S*^ u -i-i Q-i-S fo *£t *£t C *£,*£, J3 *>,& &*£,*£, Q*?* -=

O Z Q »H £ S <

i SS SS SS PS SS

o tr* ii i*- «o r- >o ll

0 NO r^ W «« r-* ON

I SS PS SS SS £S

SS PS ° S ° S £2

SS *S °S °S £3

£3 PS PS °S £S

SS PS PS SS SS

SS PS SS PS SS

SS PS °S PS SS

S3 ON oj *m >ON

SS PS PS PS SS

SS £S SS tS SS

SS *S SS PS SS

SS fS PS PS SS

SS PS PS PS SS

SS ?S SS PS S3

Sm PS PS PS SS

SS PS SS PS S3

S3 ?S SS SS SS

S3 PS PS S3 S3

SS £2 SS SS SS

S3 ?-3 SS PS SS

SS SS SS PS SS

S3 S3 PS PS SS

*o»r» >ctfv f-«o r*->o «o-o

Sm SS PS P3 SS

2S SS PS PS SS

SS SS PS PS S2

Sm Sm PS PS °S

SS SS S3 SS PS

S£ SS ?5 SS PS

66 EE EE EE EE

33 33 33 33^33

EE SS EE SE-a6E

g-ss c2S-i-sa ^ss H.SS
NOYO RIVER BASIN 

11-4685. NOTO RIVER NEAR FORT BRAGG, CALIF.

LOCATION. Lat 39°25'31", long 123°44'10", temperature recorder at gaging station, 0.7 mile downstream 

cino County.

DRAINAGE AREA. 106 square miles. 

RECORDS AVAILABLE. Chemical analyses: January 1959 to September 1965.

Water temperatures: December 1965 to September 1966. 

EXTREMES, December 1965 to September 1966. Water temperatures: Maximum, 72°F July 21, 22, Aug. 17; m

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Nov. 12, 1965. . . . 

Jan. 14, 1966. ... 

Mar. 17. .........

July 20.. ........

Sept. 9.. ........

Mean 

discharge 

(cfs)

11 

220 

344 

38 

5.9 

3.4

Silica 

(Si02)

18 

17

Iron 

(Fe)

Calcium 

(Ca)

14 

16

Magnesium 

(Mg)

4.6 

5.8

Sodium 

(Na)

11 

7.0 

7.5 

9.7 

11 

12

Potassium 

(K)

0.9 

1.3

Blcarbonate 

(HCO,)

84 

49 

52 

72 

82 

84

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

9.0 

5.0

Chloride 

(Cl)

8 . 2 

5.3 

4.9 

7.5 

7.7 

9.1

Fluorlde 

(F)

Nitrate 

(NO,

0.0 

.3
NOTO RIVER BASIN Continued

11-4685. NOTO RIVER NEAR FORT BRAGG, CALIF. Co

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum ....

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum ....

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

44 

43

47 

43

57 

51

58 

49

60 

54

68

58

66 

57

70 

59

2 3

45 

43

45 

42

56

50

59 

50

59 

52

66

59

66

57

70 

59

4 1 5

48

45

45 

41

57 

51

58 

52

61 

53

68

59

68 

56

68 

58

-

50 

48

44 

41

54

53

60 

53

62

54

70 

59

68

59

67 

57

 

6

 i.

51 

50

48 

44

55 

52

56

51

62

54

67 

60

67 

59

66 

57

52

51

49 

47

53 

52

60 

53

61

57

68 

58

68

61

64 

58

52

51

50 

48

57 

51

60

53

64 

55

68 

61

66 

58

64

60

8 , 9

51 

50

52

50

50 

49

57 

52

63 

56

64

59

69

57

66 

61

67 

60

10

50(48 

48 46

50 48 

48 47

50 

50

54 

53

58

56

65

58

70 

59

66

59

66

60

51 

49

54 

51

60 

54

64

59

67 

61

67 

58

66 

60

1 1

47 

46

48

47

50 

48

52 

51

60 

53

64 

56

69 

59

66 

59

64 

59

^

13

47 

45

46

51 

49

53 

51

61

53

66

55

66

59

65 

62

64 

55

45 

43

46

52

51

54

50

61

54

69 

56

65 

59

65 

61

64

58

14 _| 15

43

40

47

52

50

55 

50

60 

53

71 

59

68 

59

68 

58

65 

55

Day

L"1

40 

38

,7

46

51 

49

57 

51

59 

49

70 

61

68 

58

68 

52

64

55

y.

43

50 

46

58 

52

61 

54

67 

59

68 

59

69 

58

67

57

17

38 

36

42

48 

45

58 

52

64 

52

66 

56

69 

61

72 

61

68

60

isll9

38 

36

41

49 

46

57 

50

68 

58

67 

58

70 

62

68 

59

64 

60

38 

36

42

51 

47

56 

48

66 

56

58

66

60

69 

62

67 

58

20

37 

36

40

49 

46

55 

47

65

57

56

71 

58

68 

59

68 

60
TENMILE RIVER BASIN 

11-4686. MIDDLE FOHK TENMILE RIVER NEAR FOHT BRAGG

LOCATION. Lat 39°34'20", long 123°41'45", temperature recorder at gaging station on 

with North Fork Tenmile River, and 10.4 miles (revised) northeast of Fort Bragg, M

DRAINAGE AREA. 32.9 square miles.

RECORDS AVAILABLE. Water temperatures: October 1964 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 69°F June 14, 18. 

EXTREMES, 1964-66. Water temperatures: Maximum, 69°F June 14, 18, 1966; minimum (19

Temperature (°F) of water, water year October 1965 to 

October

Maximum ....

Minimum ....

November

December

January

February

March

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1 j 2] 3 ; 4 5 6 7 89 10(11 12,13

6?

5*

45

56

5?

58

5?

58

54

61

57

6*

57

fil

56

r~r ~~

fi?

51

44

55

 51

58

5?

67

51

6?

55

63

58

61

56

62 56 60

54

41

56

51

5fi

51

fi?

51

fil

54

64

57

60

55

54

41

55

54

58

54

60

54

64

57

63

57

ft?

54

61 59 58 57 60

55' 56 55 56 56 57

i

44

56

54

56

5?

5B

55

fi?

57

64

58

60

54

47

55

54

59

54

57

57

fi?

58

64

57

57

54

47 48

55 55

52 53

58

5?

61

55

61

59

63

57

57

56

59

55

63

57

67

58

oo

56

61

56

48

54

5?

59

57

61

58

59

57

65

58

fil

56

48

51

5?

59

56

64

50

6?

57

63

59

61

55

62 60 58

55 55 54

47 48

51

5?

60

54

64

57

6?

58

63

58

59

55

54

52

60

55

64

56

61

60

62

57

55

51

49

55

51

61

56

66

58

60

58

61

57

56

52

14 15 16 j 17 j 18 ' 19 ,20

57 58 59

56 54 52

50

55

51

59

54

69

60

6?

57

63

57

5ft

51

49 48

57

51

59

51

67

61

61

58

65

57

58

52

59

51

61

54

66

60

6?

58

64

57

59

52

55

52

46

57

54

6?

54

65

58

64

58

66

59

59

56 61 59

55 56 55

47

56

51

48

55

50

|

61

56

69

59

64

60

64

58

58

54 j 56

63

56

66

59

65

58

62

58

60

55

46

55

49

61

56

61

58

64

57

62

57

60

55
MATTOLE RIVER BASIN 

11-4690. MATTOLE RIVER NEAR PETROLIA, CALIF.

LOCATION. Lat 40°18'40", long 124 0 16'10", at gaging station 0.2 mile downstream from Clear Creek, 1.

1.3 miles upstream from North Fork. 

DRAINAGE AREA. 240 square miles.

RECORDS AVAILABLE. Chemical analyses: January 1959 to September 1966. 

Water temperatures; Hovember 1965 to September 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 13, 1965. . . . 

Nov. 9.... .......

Jan. 11, 1966. . . .

Mar. 15. .........

May 17 ...........

June 14......... .

July 19. .........

Sept . 14 .........

Mean 

discharge

(cfs)

37 

175 

801 

1750 

737 

3490

1380 

190 

96 

50 

38 

31

Silica 

(S102)

11 

9.0

Iron

(Fe)

Calcium 

(Ca)

26

40

Magnesium 

(Mg)

4.6 

6.3

Sodium 

(Na)

8.8 

8.3 

6.9 

5.2 

5.7 

4.7

5.3 

6.9 

7.5 

8.2 

9.0 

8.6

Potassium 

(K)

1.4 

1.4

Bicarbonate 

(HCOJ

133 

105 

69 

52 

61 

48

59 

93 

111 

120 

130 

132

Carbonate 

(CO,)

3

1 

0 

0 

0 

0

0 

0 

0 

4 

2 

0

Sulfate 

(SO.)

17 

31

Chloride

(CD

4.4 

4.0 

4.0 

2.8 

2.1 

2.4

1.5 

3.9 

3.0 

3.4 

4.0 

3.6

Fluorlde

(P)

Nitrate 

(NO

0.

.4
Oc

1

1 

No

1

] 

De

1

1

1

1 

Pel

J

1 

Ma

J

I 

Ap

1

} 

May

Ma

Mi 

June

Ma

Mi 

July

MATTOLE RIVER BASIN Contlnued

11-4690. MATTOLE RIVER NEAR PETROLIA, CALIF. C

Temperature (°F) of water, water year October 196S to 

rqber

Dvember

 cember 

Vlaximum ....

luary 

vlaximum .... 

Vlmimum .... 

jruary

irch

Mi i "

ril

iy

Vlaximum .... 

VImimum .... 

ne

y

gust

Vlinimum .... 

member

1

49

49 

49

56 

5fa

71 

70

71 

70

2

49

49 

48

48

40

56 

56

71 

70

71 

70

3

49

4B 

40

56 

56

71 

70

71 

71

4

49

45 

44

56 

56

71 

70

7 1 

71

5

50

46 

45

57 

56

--

71

70

71 

71

6

50

47 

46

57 

56

71 

70

71 

70

7

-

50

46 

45

57 

57

71

70

71 

71

8

50

46 

44

57 

57

70 

70

71 

71

9

50

44 

42

57 

56

71

70

72

71

10

-

=

49

43 

42

57 

56

71

70

72 

72

1 1

49

44 

42

58 

57

71 

70

7271

,2

49

44 

42

58 

57

70 

69

72 

71

13

48

45 

43

58 

58

70 

69

71 

71

14

47

46 

45

58 

58

69 

68

72 

71

15

46

47 

45

58 

58

69 

68

72 

71

Day

16

45

45 

43

59 

58

69 

68

72 

71

17

45

45 

43

59 

59

70 

69

72 

71

18

45

46 

44

59 

59

70 

69

72 

71

19

44

44 

43

59

59

70 

68

71 

71

20

44

44 

42

59 

59

70 

70

71 

71
EEL RIVER BASIN 

11-4700. LAKE PILLSBURY NEAR POTTER VALLEY, 

LOCATION. Lat 39°24'30", long 122°57'30", temperature recorder at gaging station at 

0.3 mile downstream from Rice Fork, and 10.2 miles northeast of town of Potter Va

DRAINAGE AREA. 289 square miles.

RECORDS AVAILABLE. Water temperatures: December 1965 to September 1966. 

EXTREMES, December 1965 to September 1966. Water temperatures: Maximum, 80°F Aug. 

Temperature (°F) of water, water year October 1965 t

October

M

November

December

February 

Maximum ....

Minimum .... 

March 

Maximum ....

April 

Maximum ....

May

June

July 

Maximum ....

August 

Maximum ....

September

Minimum ....

]

40 

42

41 

43

64 

55

72 

71

78 

75

72

2

40 

43

43

62 

58

73 

71

78 

75

73

3

40 

41

44

61 

57

73 

71

78

75

73

4

41 

41

43

62 

56

75

70

78 

76

73

5

42

44

61 

58

74

71

78 

76

73

6

46

46

61 

56

73

71

78 

76

73

'

46

44

59 

58

72

71

79 

76

72

8

45

46

58 

58

72

71

80 

76

72

9

43

46

58 

57

71

70

78

77

72

10

42

48

57 

56

72

70

78 

76

72

1 1

42 

42

50

"

56 

56

72 

70

78 

76

72

12

42

47

56 

56

72 

70

78 

76

71

13

41

49

57 

55

72

70

78 

76

71

14

42

48

58 

55

71 

70

78 

76

71

15

42

48

60 

56

72

70

79

76

70

Day

16

42

47

60 

57

72

70

79 

76

70

17

46

59 

54

73 

70

79 

76

70

18

48

58 

57

74 

71

78 

76

70

19

46

58 

55

74 

71

78 

76

70

20

40

47

58 

56

75 

71

78 

76

70
EEL RIVER BASIN Continued 

11-4705. EEL RIVER BELOW SCOTT DAM, NEAR POTTER VAL

LOCATION. Lat 39°24'30", long 122°58'15", temperature recorder at gaging station, on 

0.7 mile downstream from Scott Dam, and 9.7 miles northeast of town of Potter Val

DRAINAGE AREA. 290 square miles.

RECORDS AVAILABLE. Water temperatures: October 1963 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 68°F Sept. 8-12. 

EXTREMES, 1963-66. Water temperatures: Maximum, 68°F Sept. 8-12, 1966.

Temperature (°F) of water, water year October 1965 to 

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

January

Maximum ....

Minimum ....

February

March

Maximum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

Minimum ....

July

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

61

61

58

 56

 

49

49

50

49

50

51

56

55

67

65

2

61

61

57

54

49

48

50

49

50

51

5B

5fi

67

66

3 4 5

63 63 63

63 63 63

571 58

55| 57

49

4B

50

49

50

5?

58

56

67

67

~

49

48

50

49

50

5?

!>7

56

67

67

57

55

49

48

50

50

50

52

57

55

67

67

6 7,8910

r63 63

61

61

63 63

61

61

56 i 56 56 i 56

56 56 56 55

42 42 , 42

42

48

48

50

50

51

52

57

55

67

67

42

49

48

50

50

51

51

5f

55

67

67

42

51

49

50

50

51

53

bb

55

68

67

61

61

55

55

42 42

42 42

51

51

50

49

51

51

56

55

68

67

44

52

51

50

49

51

51

56

55

68

68

H 1213

64 64

63 63

55

55

61

61

55 ! 55

55

42 42

42 42

44

52

52

49

49

51

53

57

55

68

68

45

52

51

50

49

51

53

57

55

68

67

54

42

42

46

52

51

49

48

52

53

57

55

67

66

14 15 16

61

6?

54

51

42

42

46

52

51

50

48

52

53

57

55

67

66

62 62

62 61

53 53

53 53

42

42

45

5?

5?

49

48

52

51

58

56

66

66

42

42

46

52

52

49

48

52

53

58

56

66

66

17

61

60

53

51

42

42

47

52

49

50

48

53

53

bB

57

66

66

1819

61

59

53

52

42

42

47

52

51

50

48

53

53

58

57

66

66

6?

59

52

5?

42

42

47

52

50

50

48

52

51

59

57

66

66

20

60

58

5?

5?

42

42

47

50

48

51

48

52

51

60

58

66

66
EEL RIVER BASIN Continued 

11-4705. EEL RIVER BELOW SCOTT DAB, NEAR POTTER VALLEY, 

Periodic determinations of suspended-sediment discharg 

(Methods " ' ' " ' " '" ' ' J ' "

tions of suspended-sediment discharge and particle size, wa

of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Feb. 15.. .........

Aug. 16....... ....

Time 

(24 hour)

1345 

1415 

1455 

1250 

0850

1430 

1500 

1345 

1430 

1435 

1340

Water 

temperature 

(°F)

57 

44 

45 

41 

40

50 

49 

56 

61 

57 

63

Sampling 

point

Discharge 

(cfs)

170 

150 

4790 

572 

D 620

700 

483 

204 

140 

199 

227

Sediment 

concentration 

(ppm)

14 

30 

412 

200 

135

60 

46 

14 

14 

4 

7

Sediment 

discharge 

(tons per day)

6.4 

12 

5330 

308 

226

113 

60 

7.7 

5.3 

2.2 

4.3

Per

0.002 0.004 0.

D Daily mean discharge.
EEL RIVER BASIN Continued

11-4710. POTTER VALLEY POWERHOUSE TAILRACE NEAR POTTER VA

LOCATION. Lat 39°21'42", long 123°07'38", at gaging station 100 feet downstream from powerhouse of p

Arsdale Dam, and 2.9 miles northwest of town of Potter Valley, Mendocino County. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1965.

Water temperatures: March 1964 to September 1966.

Sediment records: March 1964 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 876 ppm Dec. 28; minimum, 1 ppm Nov. 3.

Sediment loads: Maximum daily, 745 tons Dec. 28; minimum daily, less than 0.05 ton Oct. 19, Nov. 2

EXTREMES, 1964-66. Water temperatures (1964-65): Minimum, 40°F on several days during winter months

Sediment concentrations: Maximum daily, 3,970 ppm Jan. 4, 1965; minimum daily, 1 ppm Nov. 3, 1965.

Sediment loads: Maximum daily, 3,280 tons Jan. 4, 1965; minimum daily, less than 0.05 ton Oct. 19, 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Nov. 10, 1965.... 

Jan. 13, 1966... .

Sept . 23 .........

Mean 

discharge

(cfB)

147 

315 

303 

304 

222 

323

Silica

(S102)

9.2 

8.0

Iron 

(Fe)

Calcium 

(Ca)

17 

22

Magnesium 

(Mg)

4.7 

6.2

Sodium 

(Na)

7.1 

5.6 

4.4 

4.4 

4.3 

5.3

Potassium 

(K)

0.9 

.7

Blcarbonate 

(HCO,)

129 

65 

70 

74 

80 

98

Carbonate 

(CO,)

4 

0 

0 

0 

0 

0

Sulfate 

(S0<)

7.0 

8.0

Chloride 

(Cl)

4.3 

2.0 

1.3 

1.5 

1.4 

1.7

Fluorlde 

(F)

Ni

trat

(NO

0

A Calculated from determined constituents.
EEL RIVER BASIN Continued

11-4710. POTTER VALLEY POWERHOUSE TAILRACE NEAR POTTER VALL

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

Novembet

December 

Maximum .... 

Minimum .... 

Januaty 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum ....

1

::

55 

50

56 

49

63

53

64 

62

65 

60

2

61 

58

55 

50

56 

49

56 

52

64 

62

65 

63

72 

67

3456

61 60 62

57 57 60

63

59

7 

63 

58

8

--

62 

59

9

61

59

10

62

59

55

50

56 

50

57 

53

63 

61

66 

62

72 

67

55 

50

57 

51

59 

55

64 

62

66 

63

72

67

55 

51

57 

51

58 

56

64 

63

66 

63

72 

67

55

50

57 

50

56 

54

65

63

67

63

72 

68

56

51

57 

50

58 

54

65 

59

67 

63

72 

68

55 

51

57 

51

61 

57

62

57

67 

62

72

67

53 

51

57 

52

62

58

58 

55

67 

62

72 

67

53 

52

54 

51

62

56

61 

57

64 

61

72 

67

11

62 

58

12

61

57

13

61

57

52 

51

58 

51

62

57

62 

58

66 

62

72 

68

47 

44

53 

50

58

50

63 

58

62 

59

66 

62

70 

66

49 

45

55 

51

58

50

64

59

62

60

67 

63

70 

66

14

59 

58

48

46

56 

50

57

50

65 

60

62 

58

67 

63

70 

65

Day 

15 16

58 

56

58

57

47 

46

57 

51

57 

50

65 

59

62 

56

67 

63

71 

65

47 

45

58 

51

58 

50

62 

57

72 

65

17

58

55

18 19

48 

45

58 

52

59

50

63 

57

72 

66

48 

45

57 

51

60 

53

64 

58

72 

68

20

49 

46

57 

50

62 

56

64 

59

64 

58

71 

67

51 

46

56 

49

63 

56

64 

59

64 

58

72
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued 

11-4710. POTTER VALLEY POWERHOUSE TAILRACE NEAR POTTER VALLEY, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

It.

2..

3..

4..

5..

6..

I:: 9..

10..

11..

12..

13..

OCTOBER

Mean

discharge

(cfs)

320

318

321

322

322

321

322

322

32*

324

326

326

326

14.. 320

15..

16..

17..

18..

19..

20..

21..

322

326

302

27

2.0

9.6

326

22.. ; 323

23..

24..

25..

26..

27..

28..

29..

323

325

326

326

326

Suspended sediment

Mean

concentration

(ppm)

6

--

8

14

Tons

per

day

5.2

5.2

5.2

7.0

10

12

 j 11

10 8.7

 8.7

17

9

--

13

13

15

11

7.9

8.6

11

11

9.0

9 .7

«

8

5

«

~

T

.2

6.2

4.4

2.6

2.6

3 2.6

2.6

* 3.5

325

323 3

3.5

2.6

30.. 323 2.6

31..

Total

323

9071.6

2.6

196.2

=, - 

' JANUARY

1.. ' 306

2..

3..

4..

5«.

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23*.

24..

25..

26..

27..

28..

29..

30..

31..

Total

303

303

221

261

306

303

306

308

306

306

308

80

160

5*8

660

685

543

505

393

298

200

203

315 1*5

287 

31*

31*

310

310

310

289

31*

306

308

309

308

308

308

308

306

306

306

9373

130

142

1*7

1**

1*8

183

151

1*5

1*7

1*0

132

138

140

152

175

162

98

66

131

*48

394

483

449

413

325

248

165

168

160

123

100

110

120

123

NOVEMBER

Mean

discharge

(cfs)

62

.4

.4

.4

34

167

167

165

120

147

165

165

165

165

164

154

146

163

163

163

215

295

309

327

258

318

330

328

328

328

5512.2

Suspended sediment

Mean

concentration

(ppm)

5

1

~

3

11

7

7

6

17

130

315

80

80

95

232

131

80

112

121

160

158

67

70

78

6«

46

49

Tons

per 

day

0.8

T

T

T

.3

3.2

5.0

3.1

1.6

2.8

2.7

7.6

58

140

35

33

37

102

58

35

65

96

133

139

47

60

69

58

41

43

1276.1

FEBRUARY

306

308

308

308

309

308

308

308

308

223

286

310

310

309

309

309

309

121 309

124

143

128

120

122

117

110

115

116

126

145

134

81

5728

310

309

309

309

308

303

303

303

303

303

8505

80 66

102 85

100

240

145

141

89

90

90

90

90

100

75

79

70

76

76

74

93

72

64

67

92

85

67

68

67

55

~

83

200

121

117

74

75

75

54

69

84

63

66

58

63

63

62

78

60

53

56

77

70

55

56

55

45

2083

DECEMBER

Suspended sediment

Mean

d i g. Mean

charge

(cfs)

210

164

163

163

163

163

163

162

162

162

161

161

162

162

163

163

163

164

171

320

320

320

320

310

315

315

315

315

310

308

308

6921

concentration

(ppm)

52

46

41

36

37

41

34

32

29

24

34

30

23

25

26

21

20

30

33

43

80

71

55

55

54

60

__

876

822

120

110

Tons

per 

day

29

20

18

16

16

18

15

14

13

10

15

13

10

11

11

9.2

8.8

13

15

37

69

61

48

46

46

51

320

745

688

100

91

2577.0

MARCH

303

303

303

303

303

303

303

303

303

283

294

306

306

306

304

304

304

303

302

289

303

303

304

309

308

248

243

240

240

237

262

902S

__

56

58

57

67

60

70

140

133

140

90

77

74

70

71

71

52

55

66

43

46

47

47

55

49

57

115

109

107

71

64

61

58

58

58

43

45

54

54 42

49

49

50

48

46

35

30

25

23

27

28

40

40

41

40

38

23

20

16

15

17

20

1539

T Less than 0.05 ton.
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued

11-4710. POTTER VALLEY POWERHOUSE TAILRACE NEAR POTTER VALLEY, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

 

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1>.

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL 1 MAY

Mean 

discharge

(cfs)

312

312

310

310

304

312

310

309

308

308

308

306

293

300

312

312

309

306

306

308

310

309

308

310

310

310

309

310

322

300

9253

129

130

130

130

131

185

215

213

212

216

218

219

258

241

228

227

226

225

225

221

222

220

220

220

215

125

206

254

224

222

223

4330

Suspended sediment

Mean

concentration 

(ppm)

36

37

36

34

37

45

46

39

39

38

51

48

43

32

30

30

36

33

33

33

33

34

30

30

32

31

26

Tons

per 

day

30

31

30

28

30

38

39

33

32

32

42

40

34

26

25

25

jO

27

27

27

28

28

25

25

27

26

22

29 ! 24

27 23

26

-

21

875

JULY

7

 

6

10

_ 

9

9

6

2.4

2.1

2.1

2.1

2.8

5.0

Mean 

discharge

(cfs)

308

309

310

310

310

310

311

308

308

305

304

302

291

308

304

304

282

199

133

137

135

136

135

135

135

129

127

131

131

131

135

7113

Suspended sediment

Mean

concentration 

(ppm)

_

27

21

22

17

17

~

 -

14

13

~

--

12

_

12

 

11

__

11

12

per 

day

22

23

20

18

17

18

17

15

14

14

14

JUNE

Mean 

discharge

(cfs)

127

126

126

126

126

126

126

126

126

126

127

13 129

Suspended sediment

Mean

tration 

(ppm)

11

10

~

10

11

14

__

__

12 116 14

12 125 10

j j

11

9.9

7.0

4.7

140 9

147

144 6

131

137 

4.4 141 8

4.4

4.4

4.4

4.0

4.0

3.8

3.8

3.9

4.2

4.2

 4.4

_- 322.5

AUGUST

136

134

128

127

125

124

119

117

119

126

3853

8

16

_

7

__

14

__

Tons

per 

day

3.8

3.4

3.4

3.4

3.4

3.4

3.4

3.7

4.4

4.8

5.1

5.6

4.4

3.4

3.4

2.8

2.3

2.1

2.6

3.0

2.6

2.9

4.1

5.5

5.4

3.7

2.2

3.2

4.5

3.7

109.6

SEPTEMBER

221 5 3.0 220 __

219 3.5 220 4

219 i 7

220 1

220

220

4.6 219

4.6 216

5.2

5.2

5.3

5.3

6.3

5.2

3.7

3.7

3.7

6

6

10

8

6

6

«

5

-

3.6

3.6

6.0

6.0

4.8

3.6

3.6

3.5

2.0

3.3

3.4

3.0

3.0

3.0

121.7

5

~

4

211

213

213

218

220

221

219

220

_

5

221 , 7

220 

221

221

224

228

227

229

229

225

221

220

220

220

219

6834

5

10

12

4

6

7

4

2.4

2.4

4.1 220 2.4

3.6 , 220 2.4

3.0

2.4

2.4

2.3

2.3

2.3

2.3

2.4

2.4

3.0

3.0

3.0

4.2

3.6

3.0

3.0

6.0

7.4

4.9

2.5

3.1

3.6

4.2

4.2

4.2

3.0

2.4

104.3

220 4 2.4

216 2.3

210 4 2.3

242 1 2.6

317 5

319

321 

322

322

317

312

306

325

324

4

4

5

__

324 5

323

320

322

323

321

323

323

323

313

312

314

8794

4

7

9

7

__

13

10

4.3

4.3

3.5

3.5

3.5

3.4

3.4

4.1

4.4

4.4

4.4

3.5

6.0

7.0

7.8

7.8

7.0

6.1

8.7

11

9.3

8.5

1*5.1

Total discharge for 

Total load for year

year (cfs-days). 

(tons)..........

90584.8

15077.5
EEL RIVER BASIN Continued 

11-4710. POTTER VALLEY POWEHHOUSE TAILRACE NEAR POTTER VALLEY, 

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

_____________________P, pipet; S, sieve; V, visual accumulation tube; W, in distille

U/otav

Date of collection

Nov. 15, 1965.....

Jan. 7, 1966. .....

Time 

(24 hour)

0800 

0800 

1225

Water 

temperature 

(°F)

54 

45 

46

Sampling 

point

Discharge 

(cfs)

159 

330 

303

Sediment 

concentration 

(Ppm)

72 

79 

522

Sediment 

discharge 

(tons per day)

30.9 

70.4 

427

Perc

0.002 0.004 0.00

11-4721.5. EEL RIVER NEAR DOS RIOS, CALIF.

LOCATION. Lat 39°37'36", long 123°20'36", at bridge upstream from Outlet Creek, and approximately 6.

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

REMARKS. Discharge used is difference between gaging stations at Eel River above Dos Rios and Outlet 

between stations.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

NOV. 11, 1965....

Jan. 12, 1966.... 

Feb. 16. .........

July 20. .........

Sept. 14.........

Mean 

discharge 

(cfs)

8.0 

60 

200 

2200 

800 

2300

4000 

270 

85 

10 

4.0 

3.0

Silica 

(S102)

10 

5.4

Iron 

(Fe)

Calcium 

(Ca)

28 

27

Magnesium 

(Mg)

8.5 

8.4

Sodium 

(Na)

11 

11 

7.1 

4.3 

4.9 

4.4

4.3 

6.6 

8.2 

10 

11 

11

Potassium 

(K)

1.3 

1.5

Bicarbonate 

(HCOS)

168 

139 

105 

69 

80 

72

68 

121 

121 

113 

104 

97

Carbonate 

(CO,)

0 

5 

1 

0 

0 

0

0 

1 

2 

3 

4 

3

Sulfate 

(S04 )

17 

35

Chloride 

(CD

6.7 

8.0 

3.9 

1.7 

1.3 

1.5

.8 

3.3 

4.0 

5.0 

6.5 

8.0

Fluoride 

<F)

Nitrat

(NO

0.

1.

.

.

.

.

.

.

.

.

.
PACIFIC SLOPE BASINS IN CALIFORNIA

I 0) C O

-O 0) -H 

) h a rH 

«H O a

-MS

S o a ort o to

a 0) S 

3 CO +J 

»>> CD 

-rH .Q 

CO tC 

CU B S

i rt I O 

I rt W h

CD o GO

M >< Q

SSSS

0.

| it 82 »u I**'!!*

i 9 i Q. c 5

«|i|Jl

1§ IMS

O "* ' a

«s 3il*|

,g 1^ IH

li IMi

 3 »1 r-

^ 111 

* 1

i offl'

B) t< 

S^i *b&

|3s E * 

 S

Po

0)

ji

al«I

J. i eJjR S S5^g

°Jlg

3"<*

Igll1 

S c « 

4 S'cf 3|a

11

I?

raS

§ jj'o?

S|S

S "8 <a 

^

rt in W O H <C

00 00 00 00 00 t^

w <n Tj w w t^ to to O rt co <n

CO n rt rt rt

10 t- * n n n

o

 * rt W O O W

rt rt

U5 * t- -f 1O f

rt rt

1 1 1 1 1 1 

1 1 1 1 1 1

1 1 1 1 1 1 

1 1 1 1 1 1

1 1 1 1 1 1 

1 1 1 1 1 1

O O1O O rt O

M m

i i I I i I i I I i I I

f W t£> rt

t~ oo t^ ro w w

£M W

1 1 1 1 1 1 1 1 1 1 1 1

Of- OO O O

to m o> to to *

i i i i i i i i i i i i

t~ o to o

to o> oo ^ to ^

rt rt

! ! ! i i !

i i i i i i i i i i i i

i i i i i i i i i i i i

01

rt t- rt "O £M W 

rt f t- « £M

IO <£> .

0> . .O) 

 W rt -£M tO tO

+> > O B SI fc 

O O dJ « dJ rt

o S5Q ^fc. a

to <n to to * rt

t-t-toxtoto

tO N tO O tO rt 

N £M W £M m

CO * IO to to to

c-q o n N rt rt

rt

10 O c-q oo oo *

CO 00 O rt rt N 

rt rt rt rt

1 1 1 1 I" 

1 O 1 1 1 <J

o

rt

1 t- 1 1 1 1O

1 rt 1 1 IN

O

1 -f 1 1 1 CO 

IMI 1 1 00

rt rt

rt tO rt CO f- 00

H rt rt rt

1 rt 1 CO 1 O 

1 1 -I 

rt rt

0*00

rt t- O) tOO ")!

1 O 1 1 1 O

1 -III 

Gl Gl

O O CO 1O ")! O

* rt O CO CO 1O

I tO 1 1 1 *

1 -III 

rt rt

£M rt

<j cn rt co to to

rt rt rt rt

1 « 1 1 1 

1 1 1 1

00 £M

rt

INI 1 1 O 

IMI 1 1 CO

i n i i i

' O! ' ' ' rt

00

f- * cn 

o o co N

00 CO rt

o

rt

N CO Of- rt

rt

h !» ErH ho a

3I3S3S
EEL RIVER BASIN Continued 

11-4725. EEL RIVER ABOVE DOS RIOS, CALIF

LOCATION (revised). Lat 39°41'20", long 123°21'30", temperature recorder at discont

upstream from Middle Fork, and 2.1 miles south of Dos Rios, Mendocino County. 

DRAINAGE AREA. 705 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1957 to September 1959, October 196

Sediment records: October 1957 to September 1965.

EXTREMES, May to September 1966. Water temperatures: Maximum, 84°F June 15. 

EXTREMES, 1962-65, May to September 1966. Water temperatures: Maximum, 84°F June 1

Temperature (°F) of water, May to September 1

May

Maximum ....

June

Maximum .... 

Minimum ....

July 

Maximum .... 

Minimum ....

August

Minimum ....

September

Minimum ....

Day

1

66

57

75 

64

81

67

66

2 1 3

63 

56

72 

6?

8?

69

67

65 

5A

76 

62

HI

69

68

4 j 5 j 6 j 7 8

68 

56

79 

65

79

68

68

68 

61

81 

67

78

67

8?

70

62

80 

68

7fl

66

81

69

60

77 

66

78

67

76

69

62

72 

66

76

66

78

68

9 1 0 j 1 1 1 2

64

71 

64

75

65

78

67

66

75 

63

78

66

77

67

62

76 

65

78

67

73

65

61

76 

67

80

68

7?

62

13

64

76 

67

80

69

71

62

14

66

76 

66

ei

68

1?.

62

15 M6 | 17

70

78 

66

81

70

74

62

71

77 

65

79

70

76

63

66

79 

67

82

70

75

64

18 19 j 20

66

79 

67

80

70

72

66

66

78 

66

80

69

74

64

66

76

63

80

69

76

65
EEL RIVER BASIN Continued 

11-4728. MIDDLE FORK EEL RIVER ABOVE BLACK BUTTE RIVER, 

LOCATION. Lat 39°49'45", long 123°04'11", temperature recorder at gaging station o

River, and 9.8 miles northeast of Covelo, Mendocino County. 

DRAINAGE AREA. 204 square miles.

RECORDS AVAILABLE. Water temperatures: May to September 1966. 

EXTREMES, May to September 1966. Water temperatures: Maximum, 80°F Aug. 2, 3, 7, 

Temperature (°F) of water, May to Septembe

Month

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

61 

53

72 

63

79 

67

77 

67

2

57 

52

71 

61

80 

68

77 

67

3

59 

51

73 

62

80 

69

77 

67

4

62 

52

74 

63

78 

69

77 

67

5

 i 

6

~

 _

60 

55

74 

64

79 

68

77 

66

58

56

74 

63

79 

68

77 

66

7

59 

55

73 

62

80

70

74 

66

8

64 

55

68 

63

78 

68

75 

65

9

 

66 

58

63

77 

69

76 

66

10

66 

58

63

76 

69

74 

65

" ' 2

65 

56

63

79 

70

72 

66

67 

57

64

79 

70

71 

63

13

69 

58

64

79 

59

70 

64

14

71 

60

63

79 

69

72 

63

Day

15,16

70 

62

63

79 

70

73 

63

70 

62

63

76 

59

74 

64

' 7

70 

60

64

80 

70

74 

65

18

71 

61

65

80 

70

69 

65

19

=

72 

62

65

79 

68

71 

64

2

69 

61

65

79 

70

7

64
EEL RIVER BASIN Continued 

11-4729. BLACK BUTTE RIVER NEAR COVELO, CALIF

LOCATION (revised). Lat 39 0 49'15", long 123°04'50", at gaging station 10 feet upstream from highway 

of Covelo, Mendocino County. 

DRAINAGE A^EA. 162 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1964 to September 1966 (discontinued).

Water temperatures; May 1964 to September 1966.

Sediment records: October 1965 to September 1966. 

EXTREMES, 3965-66. Water temperatures: Maximum, 79°F on several days during June to August; minimum

Sediment concentrations: Maximum daily, 10,600 ppm Jan. 4; minimum daily, 2 ppm Dec. 18-21, 23.

Sediment loads: Maximum daily, 143,000 tons Jan. 4; minimum daily, 0.2 ton Dec. 18-21, 23. 

EXTREMES, 1964-66. Water temperatures: Maximum, 89°F Aug. 23, 1964; minimum (1965-66), freezing poi

Sediment concentrations (1965-66): Maximum daily, 10,600 ppm Jan. 4, 1966; minimum daily, 2 ppm De

Sediment loads (1965-66): Maximum daily, 143,000 tons Jan. 4, 1966; minimum daily, 0.2 ton Dec. 18

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 14, 1965....

Jan. 13, 1966.... 

Feb. 17..........

Sept. 14. ........

Mean 

discharge 

(cfs)

5.0 

13 

125 

870 

268 

620

870 

151 

44 

13 

4.2 

5.4

Silica 

(Si02)

8.5 

9.0

Iron 

(Fe)

Calcium 

(Ca)

25 

64

Magnesium 

(Mg)

2.3 

8.4

Sodium 

(Na)

7.1 

7.2 

4.4 

3.5 

4.1 

3.2

2.7 

3.1 

5.9 

5.5 

6.3 

6.3

Potassium 

(K)

0.8 

15

Bicarbonate 

(HCO,)

156 

151 

87 

80 

95 

69

61 

76 

114 

135 

148 

145

Carbonate

(cog

2 

5

1 

0 

1 

0

0 

0

1

4 

2 

0

Sulfate 

(S0«)

14 

85

Chloride 

(CD

2.0 

2.6 

1.2 

.7 

.5 

.8

.4 

.8 

1.1 

1.4 

1.8 

1.5

Fluoride 

(F)

Nitrate 

(NO

0.

2.

.

.

.

.

.

.

.

.

.
EEL RIVER BASIN Continued

11-4729. BLACK BUTTE RIVER NEAR COVELO, CALIF

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Max'imum .... 

Minimum ....

Maximum .... 

Minimum .... 

July

Minimum .... 

August

Minimum .... 

September

Minimum ....

Day

1

42 

37

42 

35

41 

37

40 

35

53 

41

61 

47

67

54

75 

63

77 

61

61

2

42 

36

40 

38

40 

35

41 

34

53 

42

62 

49

62

52

74 

68

78 

63

60

3 4 5 6

43 

36

41 

38

37

41 

32

53

61 

50

65

51

74 

68

79 

63

63

43 

38

41 

39

38

37 

32

48

62

53

68 

53

77 

59

78 

62

44J 44 

42' 41

44' 45 

41 43

39

36 

48

60 

51

65 

56

77 

60

79 

62

61 61

9

" 

43 

40

44 

42

37 35

39 

52

62

49

61 

58

77 

60

78 

63

39

54

62 

50

64 

57

75 

60

79 

63

61 ] 62

42

39

45 

41

33

30 

53

62 

52

70 

57

77 

60

78 

62

10

1

42 40 

40 39

42 40 

39 38

35 37

41 40

49| 48

59 

54

73 

59

69

59

74 

63

61 60

65 

52

73 

60

74 

58

78 

63

60

11 12

40 42 

38 40

40 39 

38 37

35 37

39 38 

46 i 48

64 

51

74 

59

75 

59

77 

63

60

65 

52

77 

61

76 

59

78 

63

56

13 14 15 16

41 

37

40 

38

39 

34

42 

53

65 

52

79 

63

76 

60

79 

63

57

38 

34

40 

37

34

41

56 

4,

62

51

78 

65

75 

59

78 

63

57

38 

35

40 

38

35

39

58

64 

51

78 

67

76

60

63

57

50

37 

34

40 

38

35

«

35 

53

64 

52

11

76 

59

63

58

17" 1

51

36

34

38 

36

35

33 

53

66 

52

77 

64

77

60

64

58

18 19J20

47

36 

34

38

35

39

53

66

54

78 

64

78 

62

64

68

59

48

35 

33

38

38

38 

55

69 

55

78 

64

78 

61

63

70 

59

36

34

36

37

35 

52

71 

56

74 

64

79 

62

61

74 

59
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued 

11-4729. BLACK BUTTE RIVER NEAR COVELO, CALIF. Continued

Suspended sediment, November 1965 to April 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

23..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4. .

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

Suspended sediment

Mean

concentration 

(ppm)

Tons

per 

day

i

i

JANUARY

250

210

1110

4700

4050

2680

2020

2120

1910

1580

1270

1090

870

665

552

463

314

307

255

155

125

122

94

88

84

66

60

53

233

358

280

28134

200

500

2830

10600

7200

4800

3400

2700

1500

__

950

900

800

750

650

600

495

390

260

190

1020

780

410

-

135

284

S 9960

S 143000

S 80200

34700

18500

15500

11000

6400

3800

2800

2110

1440

1120

940

551

497

390

207

132

110

71

62

59

43

34

27

S 1100

754

310

336236

NOVEMBER

Mean 

discharge

(cfs)

__

__

__

_

229

704

412

238

244

222

178

454

281

173

200

150

130

120

3735

Suspended sediment

Mean

concentration

(ppm)

~

__

__

816

1800

435

210

150

50

80

667

310

152

210

190

145

107

-

Tons

per 

day

~

_

_

S 1090

S 3700

S 534

135

99

30

38

S 840

235

71

113

77

51

35

7048

FEBRUARY

220

193

442

1320

1060

1090

958

828

705

636

454

431

320

294

211

211

268

294

495

438

373

395

344

238

294

238

300

300

13350

370

400

677

3080

1600

1030

830

490

330

150

280

200

330

320

660

340

220

208

S 1000

S 11200

4580

3030

2150

1400

933

670

405

350

190

150

85

85

120

170

374

300

201

352

297

240

524

218

160

97

29709

DECEMBER

Mean 

discharge

(cfs)

115

105

120

135

160

181

136

125

125

106

Suspended sediment

Mean

concentration 

(ppm)

95

81

104

162

194

_

90

62

84 | 33

88

81

62

52

49

41

41

38

34

35

35

29

151

168

118

148

636

685

755

638

5276

28

18

8

7

5

2

2

2

2

3

2

625

300

70

70

4280

1400

900

650

--

Tons

per 

day

29

23

34

59

84

88

59

41

30

18

7.5

6.7

3.9

1.3

1.0

.7

.3

.2

.2

.2

.2

.3

.2

S 413

136

22

28

10100

2590

1830

1120

16726.7

MARCH

200

186

216

255

288

358

395

454

744

800

720

650

740

700

650

620

580

540

520

461

507

429

450

460

480

500

520

580

680

760

704

16147

__

75

140

320

500

630

1640

2180

1450

1140

1230

1250

980

1070

790

600

700

_

520

400

__

_-

1600

__

54

40

44

48

109

309

533

772

S 3690

4710

2820

2000

2460

2360

1720

1790

1240

875

983

1100

990

602

486

430

440

770

2400

2700

2940

3100

2700

45215

S Computed by subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued

11-4729. BLACK BUTTE RIVER NEAR COVELO, CALIF. Continued

Suspended sediment, November 1965 to April 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20,.

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

715

881

675

725

627

627

776

685

818

1050

1060

870

796

656

589

608

796

755

534

534

328

274

294

274

244

294

294

268

288

274

17609

Suspended sediment

Mean 

concentration

(ppm)

1830

1300

_

1140

910

1250

1000

1000

520

330

~

160

--

~

_

"

Tons 

per 

day

S 3490

4300

2370

2200

1900

1900

2390

1680

2100

3540

2860

2350

1600

1200

920

870

1120

920

476

320

142

110

110

96

79

87

79

65

62

52

39388

MAY

Mean 

discharge

(cfs)

Suspended sediment

Mean 

concentration

(ppm)

Ton* 

per 

day

JUNE

Mean 

digcharge

(cfs)

Suspended sediment

Mean 

concentration

(ppm)

Tons 

per 

day

Total discharge for period Nov. 1, 1965 to Apr. 30, 1966 (cfs-riays), 

Total load for period Nov. 1, 1965 to Apr. 30, 1966 (tons)..........

84251

474322.7

S Computed by subdividing day.
EEL RIVER BASIN Continued 

11-4729. BLACK BUTTE RIVER NEAR COVELO, CALIF. C

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, plpet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Apr. 19. ..........

Time 

(24 hour)

1630 

1315 

1420 

0845 

1230 

1000 

1300 

1000

Water 

temperature

(°F)

52 

49 

39 

46 

43 

36 

40 

45

Sampling 

point

Discharge

(cfs)

94 

665 

5640 

4380 

2680 

193 

164 

543

Sediment 

concentration 

(ppm)

207 

1530 

12300 

8340 

4700 

386 

91 

473

Sediment 

discharge 

(tons per day)

52.5 

2750 

187300 

98630 

34000 

201 

40.3 

693

Perc

0.002

22 

23

0.004

33 

33 

27 

27

0.00

40 

42
EEL RIVER BASIN Continued

11-4730. MIDDLE FORK EEL RIVER BELOW BLACK BUTTE RIVER, NEAR 

LOCATION. Lat 39°49'35", long 123°05'30", at gaging station 0.2 mile downstream from Black Butte River

DRAINAGE AREA. 367 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1964 to September 1966 (discontinued).

Water temperatures: July to November 1961, October 1962 to September 1966.

Sediment records: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F Aug. 2, 3, 7, 17, 18.

Sediment concentrations: Maximum daily, 7,090 ppm Jan. 4; minimum daily, 1 ppm on many days.

Sediment loads: Maximum daily, 198,000 tons Jan. 4; minimum daily, less than 0.05 ton on many days. 

EXTREMES, 1962-66. Water temperatures (1962-63, 1965-66): Maximum, 80°F Sept. 4, 1963, Aug. 2, 3, 7, 

Sediment concentrations: Maximum daily, (estimated) 9,000 ppm Dec. 22, 1964; minimum daily, 1 ppm o

Sediment loads: Maximum daily, (estimated) 2,500,000 tons Dec. 22, 1964; minimum daily, less than 0

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 14, 1965....

Jan. 13, 1966.... 

Feb. 17. .........

Mar. 16.. ........

July 20. .........

Sept. 14... ......

Mean 

discharge

(cfs)

8.7 

12 

699 

2200 

540 

2060

2500 

628 

140 

32 

15 

14

Silica 

(S10,)

5.8 

8.3

Iron 

(Fe)

Calcium 

(Ca)

14 

51

Magnesium 

(Mg)

1.3 

10

Sodium

(Na)

19 

17 

3.4 

3.4 

3.6 

2.4

2.0 

2.1 

4.1 

9.5 

13 

17

Potassium 

(K)

0.8 

1.8

Bicarbonate 

(HCOS)

147 

130 

62 

62 

70 

55

45 

45 

76 

118 

134 

126

Carbonate 

(COJ

7 

5 

0 

0 

0 

0

0 

0 

0 

3 

2 

5

Sulfate 

(S04 )

7.0 

49

Chloride 

(Cl)

40 

25 

2.1 

1.4 

1.5 

.9

.4 

1.2 

3.5 

14 

25 

34

Fluorlde 

(F)

Nitrate 

(NOJ

0.1 

1.7 

.2 

.4 

.1 

1.0

.4 

.8

.3

.7 

.5
EEL RIVER BASIN Continued

11-4730. MIDDLE FORK EEL RIVER BELOW BLACK BUTTE RIVER, NEAR CO

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum , . . . 

December 

Maximum .... 

Minimum , . . . 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August

Minimum .... 

September 

Maximum .... 

Minimum ....

Day

1

42

37

40

45

61 

53

72 

63

79 

67

77 

67

2

42

37

38

-

57 

52

71 

61

00 

68

77 

67

3

42

40

40

40

59 

51

73 

62

80 

69

77 

67

4

__

43

39

41

39

62 

52

74 

63

78 

69

77 

67

5

-

42

39

40

40

60 

55

74 

64

79 

68

77 

66

6

-

42

40

40

40

58 

56

74 

63

79 

68

77 

66

7

57

43

41

40

59

55

73 

62

80 

70

74 

66

8

55

-

43

41

64

55

68 

63

78 

68

75 

65

9

54

42

~

41

66 

58

70 

63

77 

69

76 

66

10

55

~

39

41

66

58

73 

63

79 

69

74 

65

1 1

55

41

~

40

65 

56

73 

63

79

70

72 

66

12

53

43

40

41

67 

57

74 

64

79 

70

71 

63

13

51

41

42

43

69

58

74 

64

79 

69

70 

64

14

51

~

41

42

71 

60

74 

63

79 

69

72 

63

15

50

39

42

42

70 

62

74 

63

79

70

73 

63

16

50

38

~

41

70 

62

74 

63

76 

69

74 

64

17

50

~

39

42

70 

60

75 

64

80 

70

74 

55

18

48

38

37

-

71 

61

75 

65

80 

70

69 

65

19

47

38

38

43

72 

62

76 

65

79 

66

71 

64

20

46

36

38

69

61

76 

65

79

70

75 

64
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued 

11-4730. MIDDLE FORK EEL RIVER BELOW BLACK BUTTE RIVER, NEAR COVELO, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

U.

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

! 

2..

3..

4..

5..

6..

7«

8..

9 . .

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean

discharge

(cfs)

8.7

8.7

8.7

8.7

9.7

11

11

9.7

8.7

8.7

8.7

8.0

8.0

8.7

13

13

13

13

15

15

14

13

13

12

12

12

12

11

11

11

11

341.0

Suspended sediment

Mean

concentration

(ppm)

__

--

1

_

 -

--

--

3

_

--

3

_

Tons

per

day

T

T

T

T

T

0.1

.1

.1

.1

.1

.1

.1

.1:i

.1 ; .1

 ,i

 ' .2

 .2

_

 

-. 

__

_-

 

-

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.9

JANUARY

836

917

1940

9500

10200

8150

6000

5100

4200

3600

204

285

1750

7090

6300

4900

3350

2840

460

706

S 11200

S 198000

174000

108000

54300

39100

2300 B 26100

1550

3200 ' 1300

2600

2200

2000

nto

isoo

1250

1100

971

917

809

715

900

682

582

550

425

360

350

290

23S

208

190

640 j 165

582

530

497

438

371

778

872

724

74«87

150

133

120

100

90

314

268

240

-

NOVEMBER

Mean

discharge 

(cfs)

11

11

13

18

20

18

68

280

50

21

12

121

700

1500

900

518

Suspended sediment

Mean

tration

(ppm)

_

~

_

68

191

13

3

313

1600

1680

1400

450

550 700

2300 1550

1700

800

500

400

350

1700

1300

750

800

600

520

480

17011

1330

560

395

280

280

800

377

318

351

172

158

193

~

Tons

per

day

0.2

.2

.2

.4

.4

.4 ;

K 43

S 193

1.8

.2

.1

K 244

3020

6800

3400

629

DECEMBER

Mean

digcharge 

(cfs)

460

Suspended sediment

Mean _

concen- ons 

tration

(ppm)

141

440 82

550

650

141

238

790 452

920 700

800 635

699 420

484 184

354 120

300 74

332 ! 49

300 37

265 29

224 20

220 14

1040 188 16

9630 192 22

6100 176 13

1210

533

302

265

3670

1320

644

758

279

222

250

40555.9

FEBRUARY

740

635

836

2560

2400

1750

1300

1100

960

222 444

205 351

235 K 720

1070 S 7860

156

156

149

124

342

700

450

370

2900

1370

1150

1050

17261

6

2

4

18

675

230

58

77

5090

1800

605

447

~

per

day

175

97

209

418

964

1740

1370

B 793

240

B 115

60

44

30

B 21

12

B.3

B 8.1

11

6.2

2.5

.8

1.6

6.0

S 872

435

70

77

S 46600

6660

1880

1270

64196.5

MARCH

540

530

500

540

1150! 7450 560

605 2860 , 620

-- i 1500 1320

 1040 1990

__

110

B2

115

160

160

149

120

174

360 603

370 1320

1270 S 7210

260 B 674 2810 2530

15100 860 j 195 453 2900 2690

B 11200

6320

4050

3140

2600

1720

B 1220

1040

760

582

454

760

710

660

620

600

560

540

650

750

720

660

290 2350 1620

~ 190 i, 2190 1080

_

77

182

~

_

B 367 II 640 162

2BS

B 236

190

B 161

B 118

B 90

S 915

631

B 4*9

663514

640 I 

660 

620

580

570

550

24631

167

__

-

S 20800

S 21800

10300

6390

150 i 2580 , 2030 i 14100

130

130

120

112

120

369

310

270

280

290

250

280

250

200

180

--

 

~

27273

2300 1780| 11100

2380

2060

1820

1420! 9120

1170 6510

970 4770

1780 3600

1820

1500

650 3190

 2200

1420 440

1400 

1380 350

1440 

1520

1580

1600

1670

1960

2220

2510

51790

1200

-

1690

1400

1300

1700

2000

2600

3300

4300

6350

9000

11000

168416

S Computed by subdividing day.

T Less than 0.05 ton.

B Computed from estimated-concentratio

K Computed from estimated-concentratio 

graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued

11-4730. MIDDLE FORK EEL RIVER BELOW BLACK BUTTE RIVER, NEAR COVELO, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

APRIL MAY

discharge

(cfs)

2900

3220

3080

3080

3180

3080

2950

2900

2800

4500

3500

2500

2200

14.. 1900

15.. ! 1800

16.. I 1900

17.. ; 2300

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

2100

1850

1790

1680

1570

1520

1520

1700

1590

1120

971

917

899

67017

Suspended sediment

Mean

tration

(ppm)

1660

1460

__

960

880

930

970

930

__

540

390

170

__

per 

day

13000

14000

12100

11000

10000

9100

6200

7520

6650

11300

9170

6280

5100

4100

3500

3200

3350

2600

1950

1300

771

680

660

660

730

640

 450

390

370

 364

146771

JULY

65

63

62

60

58

56

54

52

51

50

49

49

48

46

45

16.. I 43

17.. i 40

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

38

35

32

32

31

30

29

28

28

27

26

25

24

23

1299

_

«

1

""~

- 

I

1

_

«

0.4

.3

.3

9 j

.2

.2

.1

.1

.1

.1

.1

discharge

(cfs)

908

1030

1240

1780

1560

1120

971

944

935

926

863

758

715

683

635

628

598

575

560

540

535

500

460

430

420

415

400

360

340

310

290

22429

Suspended sediment

Mean

(ppm"

_

140

_

_

19

19

Tons

per 

day

368

417

469

673

550

390

310

280

250

240

210

160

140

120

96

JUNE

Suspended sediment

discharge

(cfs)

270

250

225

210

200

200

190

185

175

170

160

Mean y

concen- 

(ppm?

150

140

135

125

80 I 120

65

51

38

28

27

24

22

20

1,

19

17

 16

14

13

115

110

105

100

96

92

90

88

84

80

76

74

70

68

11 ; 

5137 , 4153

per 

day

10

9.4

7.9

7.4

6.5

6.5

5.6

5.5

5.2

4.6

4.3

3.6

3.4

2.9

2.7

2.6

2.2

2.1

1.7

1.6

1.3

1.2

1.2

1.0

.9

.6

.6

.4

2 .4

l!

103.7

AUGUST SEPTEMBER

22 0.1 16 1

21

20

20

19

18

18

18

19

20

19

.1 i 18

.1 ,: 17

.1

 1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.

,

.

.

«

4.1

17

16

16

15

14

14

13

13

13

12

12

12

13

13

13

14

14

14

497

.1 16

 .1 15

 .1 15 

.1

 i T

-- T

 ! T

1

--

 

.1

.1

.1

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

1.7

15

14

14

14

14

14

14

14

__

 i

. '

--'

14 1

14 

14 

14

16 

23 15

26

24

22

21

20

20

20

18

17

16

14

13

501

_

__

__

3

~

_

__

__

2

_

T

T

T

0.2

.9

.7

.5

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

4.7

Total load for year (tons) ............................................................. 1115981.5

T Less than 0.05 ton.
EEL RIVER BASIN Continued 

11-4730. MIDDLE FORK EEL RIVER BELOW BLACK BUTTE RIVER, NEAR COV

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

_______________________P, pipet; S, sieve; V, visual accumulation tube; W, in distill

U7it*>*>

Date of collection

Nov. 18. ..........

Feb. 2. ...........

Mar. 8. ...........

Apr. 8...... ......

Apr. 19. ..........

Time 

(24 hour)

1440 

1330 

0740 

1610

1200 

1445 

0745 

0930 

1330

Water 

temperature 

(°F)

50 

48 

40 

43

38 

40 

41 

54 

49

Sampling 

point

Discharge 

(cfs)

518 

1710 

10300 

D 5100

635 

D 500 

1920 

2900 

D 1850

Sediment 

concentration 

(ppm)

276 

1230 

5260 

2730

205 

104 

986 

966 

390

Sediment 

discharge 

(tons per day)

386 

5680 

146300 

37000

351 

140 

5110 

7560 

1950

Perc

0.002

21 

23

0.004

32 

23 

24

0.00

43 

35

D Daily mean discharge.
EEL RIVER BASIN Continued

11-4731. WILLIAMS CREEK NEAR COVELO, CALIF.

LOCATION. Lat 39°49'30", long 123°08'25", at gaging station 1.0 mile upstream from mouth and 6.1 mil

DRAINAGE AREA. 30.4 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1964 to September 1966 (discontinued).

Chemical analyses, in partspper million, water year October 196

Date 

of 

collection

Oct. 14, 1965....

Jan. 13, 1966.... 

Feb. 17... .......

Sept. 14.........

Mean 

discharge 

(eta)

0.6 

3.0 

33 

100 

68 

192

156 

32 

8.6 

1.8 

.50 

.40

Silica 

(S10,)

7.0 

9.7

Iron

(Fe)

Calcium 

(Ca)

15 

38

Magnesium 

(Mg)

6.0 

17

Sodium 

(Na)

5.0 

4.8 

2 . 8 

2.6 

3.0 

2.6

2.2 

2.4 

4.3 

3.5 

4.4 

4.5

Potassium 

(K)

0.8 

1.3

Blcarbonate 

(HCO,)

208 

186 

72 

56 

65 

49

50 

71 

99 

141 

155 

188

Carbonate

(ccg

9 

8 

0 

0 

0 

0

0 

0 

1 

6 

9 

0

Sulfate 

(S0t)

8.0 

20

Chloride 

(Cl)

1.9 

1.8 

1.0 

.6 

.4 

.7

.3 

.6 

.5 

.8 

1.1 

1.0

Fluorlde

(F)

Nitrate 

(NO

0.2 

1.5 

.2 

.4 

.2 

.7

.2

.7

.1 

.9 

.8
EEL RIVER BASIN Continued

11-4737. MILL CREEK NEAR COVELO, CALIF.

LOCATION. Lat 39°44'45", long 123°10'15", at gaging station 50 feet upstream from unnamed tributary, 

5.2 miles southeast of Covelo, Mendocino County. 

DRAINAGE AREA. 96.9 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1964 to September 1966 (discontinued). 

REMARKS. No flow Oct. 1 to Nov. 6 and July 18 to Sept. 30.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Jan. 13, 1966....

Mar. 16. .........

June 13. .........

Mean 

discharge 

(da)

12 

310 

117 

366 

300 

9.5 

4.0

Silica 

(SiO,)

12

Iron 

(Fe)

Calcium 

(Ca)

37

Magnesium 

(Mg)

17

Sodium 

(Na)

6.4 

5.8 

6.5 

5.4 

6.2 

9.3 

11

Potassium 

(K)

1.4

Bicarbonate 

(HCOJ

106 

94 

117 

91 

108 

201 

196

Carbonate 

(CO,)

1 

0 

3 

0 

0 

1 

8

Sulfate 

(S0«)

14

Chloride 

(Cl)

3.5 

2.3 

2.4 

2.0 

2.0 

3.8 

4.4

Fluorlde 

(P)

Nitrat

(NO

1.

1.

.

.

.

.
EEL RIVER BASIN Continued 

11-4738. ELK CHEEK NEAR HEAHST, CALIF.

LOCATION. Lat 39°38'57", long 123°O7'12", temperature recorder at gaging station on 

tributary, and 13.5 miles northeast of Hearst, Mendocino County. 

DRAINAGE AREA. 84.1 square miles.

RECORDS AVAILABLE. Water temperatures: October 1964 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 87°F Aug. 23, 28-30, Sept. 1, 2.

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

November 

Maximum ....

December 

Maximum ....

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum ....

1

43

42 

40

43 

42

52 

50

63 

59

82

87

2

42

42 

42

43 

42

51

50

62 

57

82

87

345

43

43 

41

43 

43

51 

49

61

57

44

45 

43

45 

43

53

50

61 

57

82J 81

86 85

6 7

45

47 

45

46

44

57 

47

61 

59

44

47 

46

45 

43

57 

48

63

60

81 79

85 85

8 o 10

44

47 

45

44 

40

58 

48

62

59

76

81

44 45 45

47 45 43 

45 42 41

56 

49

54 

50

61 

59

84 

64

72

79

63 

61

78 

62

74

80

53 

52

65 

63

77 

62

79

82

1 1

Day

12

57 

53

44

44 

43

56 

54

44

44 

43

52

50

64 

61

76 

63

82

84

53

47

13

55 

53

43

43 

43

57 

47

64 

62

74 

58

81

.,

64 

62

72 

59

81

84

14 15 16

55 

51

40

43 

42

55

48

66 

64

74 

60

81 

62

85

55 55 

53 54

41

43 

43

62 

51

76 

66

76 

59

81 

63

86

40

43 

42

64 

51

72 

66

78 

59

76 

62

76

17

56 

51

41

43 

41

70 

66

77 

61

86 

63

82

18

52 

49

41

42 

41

64 

56

74 

65

83 

66

82

19

52 

49

41

41 

40

20

52 

48

41

42 

40

64 

57

74 

63

82 

64

84

65 

59

78 

63

84 

65

78
EEL RIVER BASIN Continued 

11-4738. ELK CREEK NEAR HEARST. CALIF. Conti

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

May 18.. ..........

July 7..... .......

Time 

(24 hour)

1130 

1155 

1345 

1200

1140 

1230 

1000 

1005 

1055

Water 

temperature

(°F)

52 

42 

46 

38

48 

49 

57 

67 

66

Sampling 

point

Discharge 

(cfs)

8.4 

35 

1170 

142

194 

206 

55 

17 

7.6

Sediment 

concentration 

(ppra)

7 

8 

2050 

101

201 

125 

2

1 

1

Sediment 

discharge 

(tons per day)

0.2 

7.6 

6480 

39

105 

70 

.3

T 

T

Per

0.002 0.004

38

0.0

T Less than 0.05 ton.
EEL RIVER BASIN Continued

11-4739. MIDDLE FORK EEL RIVER NEAR DOS RIOS, C

(Formerly published as Middle Fork Eel River at Dos R

LOCATION (revised). Lat 39°42'23", long 123°19'27", at gaging station 0.6 mile upstream from Eastma

and 1.9 miles upstream from mouth. 

DRAINAGE AREA. 745 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued).

Water temperatures: October 1957 to September 1959, October 1960 to September 1966.

Sediment records: October 1957 to September 1966. 

EXTREMES, 1965-66. Sediment concentrations: Maximum daily, 11,800 ppm Jan. 4; minimum daily, 1 ppm 

Sediment loads: Maximum daily, 1,430,000 tons Jan. 4; minimum daily, less than 0.05 ton on many d

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 14, 1965....

Jan. 13, 1966. ..

Sept. 14.........

Mean 

discharge 

(cfs)

18 

54 

914 

2150 

1160 

4400

4860 

770 

168 

41 

21 

17

Silica 

(S102)

7.3 

11

Iron 

(Fe)

Calcium

(Ca)

17 

45

Magnesium 

(Mg)

4.5 

13

Sodium 

(Na)

12 

12 

3.9 

4.9 

4.6 

3.5

3.0 

2.8 

6.1 

7.6 

9.4 

10

Potassium 

(K)

0.7 

1.6

Bicarbonate 

(HCO,)

151 

151 

77 

81 

94 

72

64 

69 

106 

129 

125 

114

Carbonate

(ccg

8 

7 

0 

0

1 

0

0 

0 

2 

5 

5 

4

Sulfate 

(S0«)

9.0 

65

Chloride 

(CD

59 

18 

2.0 

1.2 

1.2 

1.0

.5 

1.3 

2.9 

7.0 

11 

16

Fluoride 

(F)

N

tra

(N

0

1
PACIFIC SLOPE BASINS IN CALIFORNIA

> 00

n

o

CO

o

CN

CO 

CN

CN

-0 

CN

CN

CM

CO 

CN

CM 

CM

,_

CN

O 

CN

O

CO

f^

 

lO

2

2

CM

~

0

o

co

 o

lO

^

CO

CM

~

-G

C

1 O f-4

1 m *

j | »

ift i- m

I * 0

1 * *

1 » *

US

15!

i * i

 -* Ift O 

-0 * *

1 <0 in 

1 * m

1 CO so

1 r- 1

! 5S

1 o in

!3S

1 m so

2Sm

! ES

! £3

!S5

! S3

! In?

1 1 * 

1 1 *

3£S

! S5

1 CO -0

1 in »

1 l in

1 1 »

1 1 »

SS?

1 1 t

l 1 »

l 1 * 

1 1 *

1 1 in 

1 1 *

s-i| S s

_Q t g

* * *

1M 1 *

* 1 m

* i S

* ! *

i -* *

i *S

* * -*

O <N O 

 * * if\

ss;

* * -»

r-l m SO

1 so r^

en 4 -f

1 * 4-

 * * -*

o rsi rt

£ ! *

CD 1 1-

m 5*

* -» -*

rsi * *

-*-* *

-* * *

-»-*-»

in «iin

-»-*-., 

 *>*-*

??s

3 3S

°~?

m -» *

0 O> 1

1 <0 1

Os 0 1

O CD SO m so to m l in so 1

 * so r^

o m j

ZZ\

moo i/> r- rSS !

0 CO J

ON 0 «1

t- 0 1 

 » -0 1

53!

CO l-l sO

 * so r*

0 in I

ESP

Sin !

5£ !

 * iTi Is-

<0 tr\ |

 * tr\ i

S*2

5S !

o oi rSS !

o »n f*-

SS !

in in !

5SS

S^ !

ssts

iii

 1 1

! £ !

1 CD 1

1 1- 1

Pi?!

1 1 1

1 1 1

0 1 1 

CD | 1

If!

SO 1 1

r- 1 1

1 ON 1

1 1 f1 1 SO

SO « 1

r*- CD i

ON 1 11

O> 1 1

r- l 1

i "S

0 1 sO

1 1 <*> 1 i rin t- 1 r* PN- i

! ! P

r- 1 l

! iSP

t- l l 

r- 1 1

1 0 I

t- l r1 in l

0 1 1

r- 1 1

1 r- r>-

1 1 1 1 1 1

1 ON 1

1 r- i

1 1 rr-f CD 1

t- t- l

' ' K

ill
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued 

11-4739. MIDDLE FORK EEL RIVER NEAR DOS RIOS, CALIF. Continued

Suspended sediment, water year October 1965 to September 

(Where no concentrations are reported, loads are estima

1966 

ed)

Day

1..

2..

3,.

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

2$..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

18

18

18

18

18

19

19

19

19

18

18

18

18

18

20

21

22

22

22

22

22

22

21

21

21

20

20

19

19

19

19

608

1530

1270

5720

45000

32000

21100

9870

7*80

5310

3900

2950

2470

2150

I960

1850

1850

1740

1650

1550

1400

1340

1280

1250

1240

1180

1160

1160

1160

*000

2500

2450

171*70

Suspended sediment

Mean

concentration 

(ppm)

__

--

1

_

--

1

__

 -

 -

1

 -

 -

 -

--

 -

1

__

 

 -

--

1

Tons

per 

day

T

T

T

T

T

0.1

.1

.1

.1

T

T

T

T

T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

2.6

JANUARY

480

410

4640

11800

8100

5740

4700

3480

3970

2890

2300

2000

700

800

650

700

670

505

400

360

320

238

190

195

166

132

100

85

1800

2120

610

1980

1*10

S 85300

1430000

700000

S 329000

125000

70300

56900

30400

18300

13300

4060

4230

3250

3500

3150

2250

B 1670

1360

B 1160

823

6*1

653

529

413

313

266

19*00

14300

4040

2927898

NOVEMBER

Mean 

discharge

(cfs)

19

20

20

21

22

22

30

2*0

147

72

54

58

530

2820

1880

764

890

4200

2590

1100

764

614

5*5

3210

2160

1260

1350

1020

908

8*2

28172

Suspended sediment

Mean

concentration 

(ppm)

_

 

--

1

_

5

220

63

30

8

22

1400

6160

2490

756

384

4600

2790

1100

480

160

180

3570

2380

755

1490

500

95

65

--

Tons

per 

day

0.1

.1

.1

.1

.1

.1

.4

S 194

S 27

B 5.8

1.2

3.4

S 3500

S 52800

K 12900

S 1650

S 1920

S 53600

S 21600

3270

990

265

265

S 34000

S 14100

S 2760

S 5540

1380

235

B 148

210755.4

FEBRUARY

2400

1800

5000

5500

4360

3940

3000

2400

2160

1700

1600

1400

1320

1320

1240

1240

1160

1240

2160

1600

1400

1320

1800

2160

2300

2500

2000

1600

61620

1050

900

780

3380

2080

1700

700

800

850

330

290

160

172

170

140

105

110

1*0

468

300

194

ISO

250

310

294

385

240

182

--

-_

--

6800

4370

10500

50200

24500

18100

5670

5180

4960

1510

1250

605

613

B 606

B 469

352

345

469

2730

1300

733

535

1220

B 1810

1830

2600

1300

786

--

151343

DECEMBER

Mean 

discharge

(cfs)

770

722

788

928

1010

1330

1080

914

782

656

560

515

447

391

331

286

266

2*5

236

Suspended sediment

Mean

concentration 

(ppm)

68

240

430

525

--

580

530

380

135

"

86

85

72

58

57

40

30

24

20

214 : 18

205

211

192

1080

1300

800

680

5470

3840

2640

2820

 

31709

20

24

16

3130

2730

813

253

6470

2740

1330

1240

MARCH

1400

1*00

1220

1190

1*70

2150

2400

3160

160

138

132

118

283

800

1400

1750

6360 ' 2740

7540

5180

4190

4860

4690

4530

4400

3800

3450

3660

3180

3000

2880

2760

2880

3120

3*50

3730

3930

4120

4320

4390

108810

3590

1800

1350

1900

1700

1400

900

770

700

1080

540

400

360

350

400

640

1750

1970

2000

1700

1520

1600

Tons

per 

day

141

468

915

1320

1*50

2080

1550

938

285

156

B 130

118

87

61

51

31

22

16

B 13

10

B 11

14

8.3

S 16700

K 10500

K 1830

S 469

S 144000

S 30100

9480

S 10200

233154.3

605

522

435

379

S 1160

4640

9070

14900

5 48800

S 74600

25200

15300

24900

21500

17100

10700

7900

6520

10700

4640

3240

2800

2610

3110

5390

16300

19800

21200

18900

17700

19000

429621

S Computed by subdividing day.

T Less than 0.05 ton.

B Computed from estimated-concentration graph.

K Computed from estimated-concentration 

graph and subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued

11-4739. MIDDLE FORK EEL RIVER NEAR DOS RIOS, CALIF. Continued 

spended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

a..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

IB..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

*..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15,.

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cf.)

4600

4510

4220

4150

4050

4070

3950

3730

3380

6100

4930

4860

3530

3040

2980

3390

3690

3300

2640

2230

2050

1970

2040

2160

2380

2380

1920

1700

1630

1540

9Y120

Suspended sediment

Mean

tration

(ppm)

1670

1700

1750

1650

1430

1500

1580

Tons

per 

day

20700

20700

19900

18500

15600

16500

16900

1530 15400

1380 12600

2530 S 31200

2670 S 36400

2300 ,S 32300

1030 9820

1020 8370

1200 9660

1630 14900

1450 14400

1140 10200

800 5700

600 3610

500 2770

390 2070

410 2260

600 3500

860

800

300

5530

5140

1560

320 1470

330 1450

210 873

 1 

359983

JULY

82

79

78

76

74

69

67

64

64

64

58

57

60

57

55

54

45

43

42

41

40

41

40

38

37

35

35

34

33

32

32

1626

4 0.9

.9

 ; .8

.6

3

7

3

~

7

3

--

1

- 

1

2

1

«

1

2

.6

.6

.9

1.0

1.2

.9

.5

MAY

Mean 

discharge

(cfs)

1490

1510

1520

1840

2040

1480

1340

1300

1320

1300

1240

1030

992

928

860

770

740

704

710

734

734

668

560

555

540

530

495

470

416

403

366

29585

31

30

30

29

28

26

26

25

24

24

24

.8 22

1.1 ' 22

.8

.4

.3

.2

.1

.1

.1

.2

.1

.1

.1

.1

.2

.2

.2

12, 1.1

 

~

. 4

.3

15.8

22

22

21

21

20

19

18

18

18

17

17

17

17

17

17

17

17

20

676

Suspended sediment

Mean T(mR

tration

(ppm)

240

260

270

350

430

400

300

220

145

200

240

220

200

235

180

130

107

94

116

136

155

80

64

85

82

70

58

44

39

32

30

-

per 

day

966

B 1060

1110

1740

2370

1600

1090

772

517

702

804

612

536

589

418

270

214

179

222

270

307

144

97

127

120

100

78

56

44

35

30

17179

AUGUST

1

2

 

1

_

 -

1

1

2

. 

 

2

1

--

2

_

1

 .

1

1

--

2

2

2

0.1

.1

.2

JUNE

| Suspended sediment

Mean 

discharge

(cfs)

343

313

279

251

276

239

254

233

219

Mean

concentration

(ppm)

25

. 

18

9

__

3

. 

3

214 --

198 I 5

177

168 4

163

151

160

147

134

130

_

3

. 

125

120 5

115

115

110 3

105 

100

95

92

88

85

5199

__

2

--

2

. 

-

Tons

per 

day

 

23

17

14

a.i

6.7

.9

 1

.9

.8

 3

.7

.4

.8

.8

.6

.3

.2

.1

.4

.3

.6

.2

.9

.9

.9

.5

,5

. 5

.5

. 7

105.6

SEPTEMBER

21

21

19

.2 19

.1

.1

18

18

.1 17

.1 : 17

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

T

T

.1

.1

.1

.1

2.9

17

17

17

17

17

17

18

18

18

21

27

24

22

21

20

19

19

18

18

18

17

17

567

_

1

.. 

1

_

1

«_

1

_

3

. 

2

3

. 

0.1

.1

.1

.1

T

T

T

T

T

.1

.1

 1

.1

.1

.1

.1

.1

.1

2 .1

.2

4

. 

1

-~

 

__

-_

 

 

~

~

.2

.1

.1

.1

.1

._

2.7

Total discharge for year (cfs-days). 

Total load for year (tons)..........

535622

4330063.3

S Computed by subdividing day. 

T Less than 0.05 ton.

B Computed from estimated-concentration graph.
EEL RIVER BASIN Continued 

11-4739. MIDDLE FORK EEL RIVER NEAR DOS RIOS, CALIF

Periodic determination «i.«;iiiij.uai,j.uii=. of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Nov. 18... ........

Jan. 31.... .......

Apr. 20.... .......

Time 

(24 hour)

1540 

0930 

1725 

1500 

1630

1630 

1415 

1230 

1230 

1545

Water 

temperature

(°F)

54 

48

45 

44

41 

46 

53 

47 

60

Sampling 

point

Discharge 

(cfs)

2040 

5600 

7700 

43800 

50500

2000 

1400 

4010 

2220 

1220

Sediment 

concentration 

(ppm)

1500 

5780 

11500 

7730 

11600

496 

122 

1330 

439 

191

Sediment 

discharge 

(tons per day)

8260 

87400 

239000 

914000 

1582000

2680 

461 

14400 

2630 

629

Pe

0.002

15 

17

21

0.004

35 

20 

23 

32 

26

30

0.0
EEL RIVER BASIN Continued

11-4750. EEL RIVER AT FORT SEWARD, CALIF

(Formerly published as Eel River at Alderpoint, 

LOCATION (revised). Lat 40°13'05", long 123 0 37'54", at gaging station at bridge, 1.0 

1.9 miles upstream from Dobbyn Creek, and 11.8 miles northeast of Garberville. Pr

DRAINAGE AREA (revised). 2,107 square miles. 

RECORDS AVAILABLE. Water temperatures: November 1960 to September 1966.

Sediment records: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 91°F July 16, Aug. 15; minimum, 33°

Sediment concentrations: Maximum daily, 13,900 ppm Jan. 4; minimum daily, 1 ppm on 

Sediment loads: Maximum daily, 4,270,000 tons Jan. 4; minimum daily, 0.1 ton on ma

EXTREMES, 1960-64, 1965-66. Water temperatures: Maximum, 91°F July 16, Aug. 15, 196

1965.

Sediment concentrations (1965-66): Maximum daily, 13,900 ppm Jan. 4, 1966; minimum 

Sediment loads (1965-66); Maximum daily, 4,270,000 tons Jan. 4; minimum daily, 0.1 

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

Temperature (*F) ojf^ water, water year October 1965 to 

Month

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum ....

Janua"^ 111 " "

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum ....

June'"'"1 ""1

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

71

57

64 

58

44 

40

41 

38

46 

43

43

60 

52

68 

56

69 

61

76 

68

88 

70

82

67

2

68 

57

63 

57

45 

40

42 

40

45 

42

40

60 

52

72 

58

64 

60

77 

66

87 

71

85 

67

3

68 

56

62 

60

48 

39

45 

42

46 

44

40

64 

51

67 

67

69 

58

80 

67

86 

70

88 

69

4

61 

56

66

60

47 

45

46 

45

40

63 

51

69

60

74 

61

84 

68

87

70

89

70

5

68 

58

65 

59 

52

49

47

48

47

42

62 

52

67 

59

71 

64

86 

72

87 

70

89

70

6

68 

58

64 

57 

52

7

74 

59

8

70 

60

59 62 

57,57 

50|50

1

52 

49

49

45

45

60 

53

70 

59

70 

64

84 

72

87 

70

86 

69

50 

49

48 

43

50 

47

60 

53

70 

59

76 

64

83 

72

88 

71

78 

69

52 

47

47 

41

50 

48

58 

62

67 

60

78 

66

83 

72

85

70

83 

70

Day

%'

66 

58

62 

54 

49

10

67 

61

55 

53 

48

44

47 

41

51 

49

53 

52

67 

60

81 

67

78 

71

87 

70

82 

67

43

50 

43

54 

49

52

50

67 

58

80 

70

83 

69

89 

71

81 

69

1 1 12

67 

58

54 

53 

46

64 

58

55 

53 

45

43

47 

43

54 

48

50 

48

69 

58

79 

68

84 

70

86 

71

78 

66

42

49 

42

53 

49

53 

48

69 

58

80 

66

82 

72

89 

71

76 

64

13

62

55

54 

53

48 

43

42

44 

40

55 

51

59 

48

67 

59

84 

67

82 

71

86 

71

77 

62

14

61 

57

53 

51

46

40

44

47

40

55 

51

61 

50

65 

57

85

70

84 

70

90 

71

77 

62

15

61 

54

55 

51

44 

37

44

49

40

53 

47

64 

52

68 

56

84 

72

89 

72

91

73

80 

62

16

58 

51

56 

51

42 

33

42

50 

41

51 

45

65 

54

68 

58

86

70

91 

74

90 

73

81 

63

17

60

50

55 

51

40 

34

40

49

40

49 

43

62 

54

72

58

84 

71

86

70

90 

75

79 

65

18

57 

55

51 

48

39 

33

41

46 

41

50 

45

62

50

76

60

84 

68

86 

73

90 

73

76 

67

,9

66 

56

51 

48

39 

33

39

49 

44

54 

47

60 

50

77 

65

83 

71

84 

69

86 

71

79 

66

20

66 

56

53 

49

40 

33

38

52 

46

51 

46

60 

50

76 

65

80 

69

86 

71

88 

69

75 

68
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued 

11-4750. EEL RIVER AT FORT SEWARD, CALIF. Continued

Suspended sediment, wate 

(Where no concentration

year October 1965 to September 1966 

are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9«.

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge 

(cfs)

38

38

38

39

39

39

39

39

39

40

40

40

40

41

41

40

40

39

39

39

39

39

39

39

39

39

39

39

39

39

39

1216

Suspended sediment

Mean

concentration

(ppm)

_

 

2

2

Tons

per

day

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

1 .1

.1

~~ .1

1 .1

--

1

 

 

j

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1

- 

.1

.1

.1

4.0

NOVEMBER

Mean 

discharge

(cfs)

40

42

47

76

85

77

111

203

533

432

294

257

590

5210

4680

3100

1490

8700

10200

4470

2350

1580

1250

9240

11100

7570

6370

4600

3600

2900

91197

Suspended sediment

Mean _,1 nnft concentration

(ppm)

_

2

2

9

21

44

28

19

11

per 

day

0.2

.2

.3

.4

.5

.4

K 3.6

K 13

K 62

B 33

15

7.6

245 |S 578

1910 IS 27600

700

3240

2400

700

230

120

141

2890

13000

DECEMBER

Mean 

discharge

(cfs)

2400

2100

1900

1980

2010

2100

Suspended sediment

Mean Tnn*

concentration 

(ppm)

73

59

55

47

61

121

2040 | 210

1720 135

1470 87

1210 60

per

day

473

335

282

251

331

S 696

1160

627

345

196

1010 47 128

880 35 83

804 27 59

733 22

675

5860 621

1300 572

S 107000 549

S 70900 520

8450 509

1460 484

512

S 519

S 76200

2130 JS 65300

1080 ' 22100

820

360

170

100

-

14100

4470

1650

783

421918.2

472

470

20

13

12

12

8

8

7

8

9

994 1030

6300 1990

4230

2660

16300

20300

12900

12000

102913

44

36

22

19

18

11

11

9.1

10

11

S 4070

S 34000

550 6280

150

8910

6100

2690

4000

~

1080

S 499000

334000

S 92400

S 131000

1106987.1

1.. I 8100

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

6100

18700

105000

120000

69600

40200

26600

19500

13700

9920

7650

6250

5380

4800

4340

3900

3400

3010

2600

2260

2110

2120

1840

1660

1510

1400

1260

2940

12600

8180

516630

2250

1000

5150

13900

8700

5720

4600

3650

2970

1820

1290

760

535

415

380

49200

16500

S 281000

S 42700OO

S 2930000

1070000

499OOO

262000

156000

67300

34«00

15700

9030

6030

4920

290 3400

2*2 2550

205 1810

175 i 1420

182 1210

150 915

145 , 826

120

98

687

487

98 439

80 326

68 257

62 211

938 Is 12200

3320 {S 117000

950

~

21000

9836158

7800

7600

5920

16000

17500

15200

11800

8750

7520

7500

6320

4400

3740

3140

2760

2430

2170

2050

3290

5260

3820

3270

4620

5420

6420

6520

5640

4920

 

181780

950

550

290

3610

2700

1880

1100

680

450

320

245

180

140

118

110

95

73

60

301

537

190

125

266

350

467

427

285

200

20000

11300

4640

S 168000

S 130000

S 77500

35000

16100

9140

6480

4180

2140

1410

1000

820

623

428

332

S 3330

S 7780

1960

1100

S 3370

S 5210

S 8110

S 7520

4340

2660

534473

4480

4360

4000

3400

4800

140

133

125

105

562

6950 1570

8180 1060

11600 2670

1690

1570

1350

964

K 7780

K 29800

23400

S 90500

17200 3470 S 161000

20900 3890 S 220000

16000 2270 98100

11700 1650 52100

11200 1900 57500

10900 1380 40600

9920 1150 30800

10700 1200 34700

9320 770 19400

7850 550 11700

8840 900 21500

7580

6600

5950

5360

5020

4960

4900

4740

4940

5080

5220

5340

247990

500 10200

360

320

300

260

300

310

370

450

550

650

680

"~

6420

5140

4340

3520

4020

4100

4740

6000

7540

9160

9800

979434

S Computed by subdividing day.

B Computed from estimated-concentration graph.

K Computed from estimated-cc 

graph and subdividing day.

icentration
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued

11-4750. EEL RIVER AT FORT SEWARD, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

APRIL MAY

Suspended sediment

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

Mean 

discharge

(cfs)

9440

5500

5260

5100

4980

4860

4760

4580

4540

10.. $340

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

8180

11800

8540

6300

5340

5180

5360

5160

4420

3700

Mean _ Tons concentration

(ppm)

1030

1180

1100

890

7*0

720

700

620

530

620

2070

2500

1100

per 

day

15100

17500

B 15600

12300

9950

9450

9000

7670

6500

8940

S 48600

S 79400

25400

580 9870

470 6780

460 6430

550 : 7960

580 8080

380 4530

275 2750

3220 230 2000

2860

23.. 2730

24.. 2760

25.. 2840

26.. j 2910

27.. ! 2660

175

155

150

173

242

1350

1140

1120

1330

1900

200 1440

28.. | 2280 140

29.. 2080

30.. I960

31..

Total

1..

2..

3..

4..

5..

6..

7..

8*.

9«.

10..

140640

115

100

862

646

529

324127

JULY

146 j 2 | 0.

142 1

138

134

133

129

122

118

115

114

11.. 112

12.. 112

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

26..

29..

30..

31..

Total

110

110

112

109

106

100

96

86

82

79

78

76

66

65

63

60

59

56

56

3084

 .

1.

Mean 

discharge 

(cfs)

1900

1850

1860

1980

2530

2340

2050

1870

1860

1860

1830

1710

1570

1480

1380

1290

1210

1120

1090

1100

1100

1060

971

Suspended sediment

Mean

tration 

(ppm)

80

75

80

87

170

85

78

57

40

39

30

_

Tons

per 

day

410

375

402

465

820

1070

1100

710

427

380

385

330

242

190

160

139

130

118

110

89

77

 72

24 63

854 : 

757

746

729

696

666

21

__

16

619 10

589

42667

51

43

36

JUNE

Mean 

discharge

(cfs)

544

497

457

438

411

394

383

390

379

366

344

330

314

294

286

271

254

244

228

Suspended sediment

Mean

concentration

(Ppm)

7

6

_

4

3

__

4

_

__

3

1

__

5

__

214 , 2

204

199

192

184

180

176

31 168

26 161

22

17

14

8504

AUGUST

55

55

54

52

3 1. 48

2

t

.

.

 .

1

11

10

49

49

9

11

7

_

~

1.3

1.5

1.6

1.3

.9

.9

1.1

47 8 1.0

47

. 47

,

2.

3.

3.

3.0

 2.9

2.9

11 , 3.0

 2.

11 2.

10

11

_

9

10

-

2.

2.

2.

2.

2 .

1.

1.

1.

1.

1.

1.

53.4

46

46

46

40

39

39

37

37

37

36

36

35

35

34

34

32

32

32

32

33

34

1275

-- .8

5

_

5

3

_

2

4

_

3

7

3

.6

154

150

_-

8806

23

__

1

__

__

_-

Tons

per 

day

10

9.4

7.4

7.1

5.5

4.3

4.1

3.2

3.1

4.0

3.7

2.7

2.5

2.4

3.1

2.9

3.4

2.6

1.8

1.2

1.1

1.1

1.6

1.5

1.0

.5

.5

.4

.4

.8

93.3

SEPTEMBER

36

35

36

38

38

37

36

34

33

33

.6 33

.6 31

.5

.4

.3

.3

.2

.3

.4

.4

.3

.3

.3

.4

.6

.6

.4

.3

.3

.3

.5

19.3

31

6 0.6

 , «5

_ 

2

__

_ 

2

_

3

32

.4

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

33 3 .3

34

35

 .3

42 .2

43 .2

43 2

44

46

47

45

42

40

39

39

38

38

~

1131

_

3

__

2

__

__

1

__

.2

.2

.4

.4

.4

.2

.2

.2

.1

.1

.1

8.1

Total discharge for year (cf s-days) .................................................... 1339329

Total load for year (tons) ............................................................. 13211779.4

S Computed by subdividing day.

B Computed from estimated-concentration graph.
EEL RIVER BASIN Continued 

11-4750. EEL RIVER AT FORT SEWARD, CALIF. Contin

Periodic determinations of suspended-sediment discharge and particle size, wate

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Jan. 8. ...........

Time 

(24 hour)

1215 

1250 

1445 

1130 

0910 

1530

0820 

1605 

0845 

1150 

1630 

1545

Water 

temperature

(°F)

52 

46 

42 

45 

42 

48

48 

49 

48 

48 

43 

59

Sampling 

point

Discharge 

(cfs)

10700 

800 

780 

16500 

12800 

104000

74200 

63000 

43300 

24600 

4400 

5540

Sediment 

concentration 

(ppm)

1850 

26 

1230 

11300 

1790 

6910

5740 

5840 

4680 

3440 

145 

1270

Sediment 

discharge 

(tons per day)

53450 

56.2 

2590 

503400 

61860 

1940000

1150000 

99340 

547100 

228500 

1740 

19000

Perce

0.002

24

20 

22

20 

24

0.004

28

25 

25 

27

28 

25 

24 

28

0.00

42

36 

35

36 

33
EEL RIVER BASIN Continued 

11-4752.5. EEL RIVER AT McCANN, CALIF.

LOCATION. Lat 40°19'35", long 123°50'15", downstream from Summer Bridge, approximately 0.5 mile northw

from confluence with the South Fork.

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966. 

REMARKS. No discharge records available.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 13, 1965....

Dec . 8 ...........

Jan. 12, 1966....

Sept. 14. ........

Mean 

discharge 

(cfs)

Silica 

(S102)

8.1 

9.0

Iron 

(Fe)

Calcium

(Ca)

26 

48

Magnesium 

(Mg)

4.4 

13

Sodium

(Na)

8.8 

9.5 

5.9 

4.1 

5.0 

3.9

3.8 

4.0 

6.4 

6.5 

8.0 

8.5

Potassium 

(K)

1.0 

1.6

Bicarbonate 

(HCO,)

169 

178 

91 

78 

93 

75

73 

94 

138 

157 

181 

191

Carbonate 

(CO,)

3 

5 

0 

0 

0 

0

0 

0 

0 

6 

2 

0

SuUate 

(SO*)

11 

33

Chloride 

(Cl)

7.1 

8.7 

.2 

1.7 

1.4 

1.2

.7 

1.2 

3.0 

3.9 

5.1 

5.0

Fluorlde

(F)

Nitrate 

(NO

0.

1.3

A Calculated from determined constituents.
EEL RIVER BASIN Continued 

11-4755. SOUTH FORK EEL RIVER NEAR BRANSCOMB, C

LOCATION. Lat 39°43'09", long 123°39'06", at gaging station 0.4 mile upstream from J

Branscomb, Mendocino County. 

DRAINAGE AREA. 43.9 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1960 September 1966.

Sediment records: October 1962 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F Aug. 6, 7.

Sediment concentrations: Maximum daily, ^,190 ppmi Jan. 4; minimum daily, 1 ppm on 

Sediment loads: Maximum daily, 101,000 tons Jan. 4; minimum daily, less than 0.05 

EXTREMES, 1960-66. Water temperatures: Maximum (1960-61, 1962-66), 82°F Aug. 7, 196

Sediment concentrations (1962-66): Maximum daily, (estimated) 4,900 ppm Dec. 22, 1

1963-66. 

Sediment loads (1962-66): Maximum daily, (estimated) 230,000 tons Dec. 22, 1964; m

during 1963-66. 

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

Temperature (°F) of water, water year October 1965 to 

October 

Maximum ....

January

Maximum .... 

Minimum ....

Maximum .... 

Minimum .... 

June

Maximum .... 

Minimum .... 

July

August

Maximum .... 

Minimum ....

Maximum .... 

Minimum ....

1

62

54

53 

51

58 

53

60 

56

77 

64

68 

58

2

60 

53

54 

52

58 

53

59 

55

78 

67

69 

59

3

61

53

54 

52

58

55

57 

53

78 

66

70 

59

4

59 

54

55 

52

59

57

62 

54

77 

65

70 

59

5

61 

57

56 

52

58 

55

59

57

78 

66

69 

59

6

64

56

56 

53

59

55

59 

58

79 

66

68 

59

7

64

57

55 

53

59 

56

62 

56

79 

66

64

60

8

63 

57

55 

53

61 

57

66 

58

76 

65

63 

58

9

61 

55

--

61 

59

66

61

75 

66

64 

56

10

59

58

59

57

66 

63

76 

67

62 

56

11

61 

56

58 

55

66

60

76 

65

61 

56

12

59

53

-

60 

56

68

60

76 

66

59 

52

13

59 

54

52

50

60 

57

72 

63

76 

65

58 

54

14

58 

55

54

50

60 

56

74 

67

64

60 

52

15

55

53

55 

52

59

55

76 

68

66

60 

52

Day

16

53 

49

57 

53

60 

55

76 

68

65

61 

52

17

54 

49

57 

54

62 

56

73 

65

66

61 

53

18

55 

54

55 

52

63 

58

73 

65

64

61 

58

19

59 

55

54 

50

65 

60

72 

65

64

63 

56

20

56 

52

54

50

66 

61

70 

64

64

65

57
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued 

11-4755. SOUTH FORK EEL RIVER NEAR BRANSCOMB, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge

(cfs)

2.5

2.2

2.4

2.7

5.9

5.1

4.1

3.6

3.1

3.1

3.3

3.1

2.9

4.8

6.7

5.1

4.4

4.4

4.4

4.4

4.1

4.1

3.8

3.6

3.6

3.3

3.1

3.1

3.1

3.1

2.9

116.0

Suspended sediment

Mean

concentration 

(ppm)

_

2

1

__

1

_

1

__

1

1

 

Tons

per 

day

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0.3

JANUARY

425

450

2070

11100

5380

2380

1100

762

526

412

329

265

222

188

162

138

124

112

99

90

84

90

84

75

70

64

62

58

142

198

170

27431

_

56

783

3190

2170

1300

405

103

--

_

18

i!

__

7

6

5

__

11

32

__

3

85

17

"

49

S 80

S 4850

S 101000

S 31800

S 8620

K 1300

< 220

65

36

21

13

.0

 1

.2

.4

.3

.8

.6

.2

.1

.7

.8

.5

.9

.9

.3

.5

S 5

2

.8

148198.1

NOVEMBER

Mean 

discharge

(cfs)

2.9

2.9

3.8

9.5

8.5

7.1

14

40

17

12

11

27

76

95

58

31

48

203

153

74

46

36

43

354

348

280

247

160

114

87

2608.7

Suspended sediment

Mean

tration 

(ppm)

1

1

10

8

53

242

90

__

19

32

49

26

35

174

61

3

26

229

62

40

13

6

2

--

Tons

per 

day

T

T

T

A 0.3

.2

.2

K 4.7

S 28

< 4.3

1.1

.3

< 1.8

K 8.0

K 14

K 4.4

.8

K 9.7

5 103

K 30

.6

.2

DECEMBER

Mean 

discharge

(cfs)

68

56

46

42

39

34

31

29

27

24

24

23

20

19

18

17

17

17

16

15

15

. 1 I 15

Suspended sediment

Mean

tration 

(ppm)

_

3

__

2

1

2

2

__

1

1

S 3.8 14

5 230 194 327

S 60 228

5 36 160 32

8.7

2.6

1.5

.5

~~ 

 

554.8

FEBRUARY

280

262

242

390

384

425

355

304

253

217

182

160

140

129

118

107

99

92

152

138

124

134

160

239

286

295

259

225

"

6151

131

10

145

57

39

19

11

_

3

__

15

_

9

12

29

43

_

14

7

"

"

K 110

18

K 6.8

S 152

S 60

K 45

18

11

7.5

4.7

2.9

2.2

1.5

1.0

1.0

.9

.5

.5

< 7.1

2.6

1.3

K 3.5

< 5.1

S 19

K 35

26

9.8

4.3

557.2

129

862

U

670

790 220

618 115

600 101

4207

Tons

per 

day

C.

.

.

.

.

.

.

.

.

.

.

.

.1

T

T

T

T

T

T

T

S 277

120

14

3.8

5 1900

469

192

164

3143.0

MARCH

203

192

170

155

168

211

228

345

646

910

610

464

425

348

355

368

323

301

352

295

283

244

217

190

168

145

131

122

112

103

97

8881

_

6

40

44

80

255

258

_

50

46

_

17

3 3

3 1

2 8

2 1

2 1

S 24

K 27

K 82

S 491

K 660

160

65

53

7.5

44

25

13

S 14

47 'K 46

62

__

11

__

_

3

_-

-

11

7.2

5.9

4.1

2.7

2.0

1.4

1.0

 9

.8

.5

1825.0

S Computed by subdividi 

T Less than 0.05 ton. 

A Computed from partly

? day. 

stimated-c central ion graph.

K Computed from estimated-concentration 

jraph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued

11-4755. SOUTH FORK EEL RIVER NEAR BRANSCOMB, CALIF. Continued 

Suspended-sediment, water year October 1965 to September 1966 Continued

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..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean

discharge

(cf.)

90

82

80

75

72

67

62

59

58

80

244

368

230

180

152

134

124

118

107

101

93

88

80

75

70

65

60

56

53

50

3173

Suspended sediment

Mean

tration 

(ppm)

__

2

8

13

55

85

83

13

5

3

6

3

"

Tons 

per 

day

0.5

.4

.6

1.0

1.6

2.4

2.5

2.4

2.3

S 17

S 84

K 91

13

6.3

4.1

2.9

2.3

1.6

1.2

.8

.8

.7

.9

1.0

1.1

.9

.8

.8

.6

.4

245.9

JULY

8.2

8.

8.

8.

8.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

19 .5

_

1

_

4

3

1

1

1

3

2

2

2

--

T

0.

.

.

i

.

1.2

MAY

Mean

discharge

(cfs)

7

5

2

1

0

38

37

36

35

34

33

31

30

28

27

26

25

25

24

23

22

21

21

21

19

20

19

19

19

18

19

885

Suspended sediment

Mean 

concentration 

(ppm)

_

4

2

--

--

1

1

1

1

~

1

__

1

2

"

Tons 

per 

day

0.4

.4

.5

.4

.3

.

.

.

.

.

.

.

.

.

.

.

.

,

.

.

.

.

.

.

.

.1

.1

4.8

AUGUST

 

.

.

.

^

.

.

.

.

; .

.

.

s

.

.

.

s

.

.

.

.

.

.

.

67.5

_

2

_

5

"

_

--

4

_

_

--

_

3

"

~ 0.6

JUNE

Mean

discharge

(cfs)

19

18

19

18

18

15

12

12

13

15

15

15

14

13

12

12

12

12

11

11

11

11

11

11

11

9.6

9.6

9.1

9.1

8.7

387.1

Suspended edimant

Mean 

concentration 

(ppm)

__

1

3

__

3

__

2

2

2

__

2

1

__

1

1

"

Ton* 

per 

day

0.1

T

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

T

T

T

T

T

T

T

2.4

SEPTEMBER

3.1

2.7

2.2

1.6

1.4

1.3

1.3

1.3

1.4

1.6

1.9

1.7

1.7

1.9

2.2

2.2

1.9

4.8

4.8

3.9

3.1

2.9

2.7

2.7

2.9

2.7

2.7

2.7

2.4

1.9

" 

71.6

_

_

5

"

_

5

_

4

_

5

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

T

0.1

.1

T

T

T

T

T

T

T

T

T

T

T

1.0

Total discha ge for year (cfs-days) .................................................... 54169.4

Total load f r year (tons) ............................................................. 154534.3

S Computed by subdividing day. 

T Less than 0.05 ton.

K Computed from estimated-concentration graph 

and subdividing day.
EEL RIVER BASIN Continued 

11-4755. SOUTH FORK EEL RIVER NEAR BRANSCOMB, CALIF. 

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Nov. 18, 1965.. ...

Feb. 4..... .......

Time 

(24 hour)

0910 

1630 

1330 

1000

Water 

temperature

49 

49 

52 

45

Sampling 

point

Discharge

(cfs)

259 

16400 

4240 

393

Sediment 

concentration 

(ppm)

285 

3770 

1890 

151

Sediment 

discharge 

(tons per day)

199 

166900 

21640 

160

Perc

0.002

22

0.004

62 

35 

31

0.0

4
EEL RIVER BASIN Continued 

11-4758. SOUTH FORK EEL RIVER AT LEGGETT, CA

LOCATION. Lat 39°52'30", long 123°43'10", temperature recorder at gaging station on 

0.2 mile upstream from Rock Creek, and 0.5 mile northwest ol Leggett, Mendocino C

DRAINAGE AREA. 248 square miles.

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 78°F June 15; minimum, 41°F Dec. 2

Temperature (°F) ol water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum .... 

Minimum ....

January 

Maximum ....

Minimum .... 

February

Maximum .... 

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum .... 

Minimum ....

July

Maximum ....

Minimum ....

August

Minimum ....

September

Maximum .... 

Minimum ....

Day

1

65

59

59

56

48

48 

46

46

46

48

45

59

54

64

55

70 

60

69

66

70

71 

68

2

64

59

59

56

48

46

46

46

46

44

59

54

64

56

68 

60

70

64

70

70 

68

 >

65

59

4

63

59

i

59 62

58 58

j

48| 51

47 ' " 

48

46

46

47

44

60

54

56

54

70

60

70

65

70

71 

68

ft)

49

48

47

45

44

60

54

62

56

70 

60

70

66

70

71 

68

5 6

 --

66

61

59

57

51

51 

52

49

49

47

45

60

55

58

54

68

60

71

66

70

71 

68

67

61

59

55

51

51 

53

52

48

49

47

59

56

64

56

65 

62

71

67

70

70 

68

7

67

61

58

57

52

51 

53

53

47

49

48

60

55

64

55

71 

62

70

67

70

70 

68

8

66

61

58

56

52

51 

53

51

47

49

49

58

54

64

56

73 

62

70

67

70

70 

68

9

64

61

57

55

51

50 

51

50

47

50

49

56

54

62

56

73 

62

70

66

70

70 

67

10

63

62

56

55

50

49 

50

49

47

51

50

54

52

64

57

73 

64

70

66

72

70 

68

1 1

65

60

56

55

49

49 

49

49

46

12

63

59

56

56

49

48

46

51 51

49

--

64

55

73 

62

70

66

70

70 

67

50

62

55

62

70

68

71

68 

66

13

64

59

56

55

48

46

45

51

49

56

52

64

56

64

70

67

70

67

65

' 1

14

62

59

55

54

46

45

45

51

51

58

52

63

55

65

71

67

71

67 

65

15

60

58

56

55

45

44

45

51

50

60

53

64

54

66

70

66

71

67 

65

16

60

55

55

54

44

43

44

50

49

62

55

64

55

66

70

66

17

62

55

55

54

43

42

44

49

47

61

56

66

55

66

71

66

1 74 ! "

71

67 

63

71

67 

66

18

61

59

54

53

42 

42

45

50

48

60

54

66

56

66

72

65

73

70

69 

67

19

63

59

54

53

42

42

46

51

49

59

52

68

57

66

74

68

73

70

69 

66

20

62

58

54

53

42

41

47

50

48

59

52

67

58

66

72

68

73 

70

67
EEL RIVER BASIN Continued

11-4765. SOUTH FORK EEL RIVER NEAR MIRANDA, CALI

LOCATION. Lat 40°10'55", long 123°46'30", at gaging station on right bank at Sylvandale Campgrounds o

4.3 miles southeast of Miranda, Humboldt County, and 20 miles upstream from mouth. 

DRAINAGE AREA. 537 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: November 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 80°F Aug. 15, 16, Sept. 16; minimum, 37°F Dec. 17, 1

EXTREMES, 1960-64, 1965-66. Water temperatures: Maximum (1960-61, 1963-64, 1965-66), 93°F July 25, 1

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 13, 1965....

Jan. 12, 1966.... 

Feb. 16... .......

Apr. 13... .......

Mean 

discharge 

(cfs)

50 

204 

378 

3250 

1320 

4050

2160 

315 

160 

77 

43 

79

Silica 

(Si02)

13 

8.2

Iron

(Fe)

Calcium 

(Ca)

26 

36

Magnesium 

(Mg)

7.1 

12

Sodium

(Na)

10 

9.6 

7.8 

5.3 

5.9 

5.2

5.3 

7.5 

8.2 

9.1 

10 

10

Potassium 

(K)

1.4 

1.6

Bicarbonate 

(HCO,)

181 

147 

110 

66 

77 

62

67 

113 

125 

144 

159 

167

Carbonate

(ccg

8 

4

1

0 

0 

0

0 

0 

2 

4 

0 

0

Sulfate 

(SO.)

10 

17

Chloride

(CD

7.0 

6.5 

4.7 

2.6 

2.6 

2.2

1.2 

4.5 

3.8 

5.0 

6.0 

6.4

Fluorlde

(F)

Nitrate 

(NOJ

2.1 

2.0 

.6 

.5 

.3 

1.1

.4 

.2

.6 

.8 

.4
EEL RIVER BASIN Continued

11-4765. SOUTH FORK EEL RIVER NEAR MIRANDA, CALI

Temperature (°F) of water, water year October 1965 t

October

Maximum ....

Minimum ....

November

Maximum ....

December

Mi^i'mum .' .' .' .'

January

Minimum ....

February 

Maximum ....

Minimum .... 

March

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

Maximum ....

July

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

67

62

58

47

43

60

56

65

58

65

65

76

68

73

66

2

65

61

58

47

45

59

56

67

63

64

63

75

68

73

66

3

65

6n

59

48

46

61

56

66

61

66

64

74

68

76

69

6?

60

62

4R

48

61

57

66

60

68

65

74

69

76

70

 

65

ISO

60

49

51

62

57

64

60

66

68

75

69

76

70

6

66

6?

58

5?

52

61

58

66

60

65

68

75

68

75

68

7

68

6?

58

53

52

60

57

66

61

68

67

75

68

70

67

8

6R

64

59

5?

51

60

57

66

61

72

69

74

68

72

66

9

66

61

58

50

4R

68

5ft

64

61

73

70

75

68

73

66

10

64

63

57

4R

47

55

54

66

61

74

67

76

68

7?

67

11

65

61

56

47

48

47

54

53

66

60

72

68

76

70

70

65

12

63

60

57

47

47

54

5?

66

60

72

70

76

68

69

64

13

ft?

59

57

44

47

56

5?

65

60

74

68

77

70

67

62

14

6?

ftO

56

41

48

58

54

64

58

78

67

78

70

68

62

15

61

58

56

40

48

60

56

64

58

79

68

80

73

70

62

Day

16

58

55

57

38

47

62

58

66

58

76

68

80

73

80

73

17

59

54

57

37

45

60

5R

68

59

74

68

79

74

79

74

18

59

5R

54

37

44

60

56

71

62

74

70

79

7?

79

72

19

63

59

53

38

43

58

54

72

65

73

68

75

70

75

70

20

ft?

59

54

38

42

58

54

70

63

71

67

77

68

77

68
EEL RIVER BASIN Continued

11-4770. EEL RIVER AT SCOTIA, CALIF. 

(International Hydrological Decade River Stati

LOCATION. Lat 40°29'30", long 124°05 I 55", at gaging station at bridge on U.S. Highway 101, 0.5 mile 

Van Duzen River.

DRAINAGE AREA. 3,113 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: October 1957 to September 1966.

Sediment records: October 1957 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 73°F June 15; minimum, 40°F Dec. 19-23.

Sediment concentrations: Maximum daily, 12,700 ppm Jan. 4; minimum daily, 1 ppm Sept. 11.

Sediment loads: Maximum daily, 6,760,000 tons Jan. 4; minimum daily, 0.3 ton Sept. 11. 

EXTREMES, 1957-66. Water temperatures: Maximum (1960-64, 1965-66), 76°F Aug. 16, 1962; minimum, 38°

Sediment concentrations: Maximum daily, (estimated) 32,000 ppm Dec. 23, 1964; minimum daily, 1 ppm 

Sediment loads: Maximum daily, (estimated) 57,000,000 tons Dec. 23, 1964; minimum daily, 0.3 ton o

Chemical anal)

Date 

of 

collection

Oct. 12, 1965....

Jan. 11, 1966....

Mar. 15.. ........

May 17 ...........

Sept. 13. ........

Mean 

discharge

(Cf8)

131 

428 

3090 

18500 

6680 

16900

13300 

1830 

555 

234 

125 

107

Silica 

(S10,)

9.3 

9.5 

9.0 

9.4 

10 

11

Iron 

(Fe)

0.01 

.00 

.00 

.00 

.00

Calcium 

(Ca)

22 

28 

38 

43 

44 

32

Magnesium 

(Mg)

2.2

7.8 

8.5 

12 

13 

13

ses, in parts per million, water year October 196

Sodium 

(Na)

10 

10 

8.1 

5.0 

5.3 

4.5

4.2

5.5 

7.0 

8.3 

9.8 

10

Potassium 

(K)

1.7 

1.1 

1.3 

1.5 

1.7 

1.7

Bicarbonate 

(HCOJ

189 

187 

124 

76 

89 

74

73 

118 

148 

181 

181 

147

Carbonate 

(CO,)

5

7 

3 

0

1 

0

0 

0 

2 

0 

5 

6

Sulfate 

(S04 )

10 

15 

19 

20 

23 

23

Chloride 

(Cl)

6.8 

8.0 

7.1 

1.7 

1.8 

1.6

1.4 

3.8 

3.4 

4.9 

5.7 

6.7

Fluorlde 

(F)

0.0 

.2 

.3 

.2 

.1 

.2

Ni

trat

(NO

0

1

1

A Residue at 180°C.
EEL RIVER BASIN Continued

11-4770. EEL RIVER AT SCOTIA, CALIF. Conti

Temperature (°F) of water, water year October 1965 to 

October

November 

Maximum .... 

Minimum .... 

December

Minimum .... 

January 

Maximum ....

Minimum .... 

February 

Maximum ....

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum ....

July 

Maximum .... 

Minimum .... 

August

Minimum .... 

September 

Maximum .... 

Minimum ....

1

47 

44

45

45

47 

46

57 

56

60

58

63

65 

64

66

70 

66

2

60 

60

47

46 

44

57 

56

60 

59

63

66 

63

66

69 

66

3

62 

60

47

45 

44

58 

55

60 

60

64

69 

62

66

71 

67

4

63 

60

48

44 

44

58 

56

62

60

66

71 

65

66

70 

67

5

61 

58

48

45 

44

58 

56

61 

60

64

71 

67

66

70 

67

6

60

58

50

46 

45

58 

56

63

60

64

70 

67

66

71 

67

7

59

58

51

48 

46

58 

56

62 

59

68

70 

66

67

69 

66

8

59 

58

50

48 

48

57 

56

60 

57

68

68 

66

67

70 

66

9

59 

57

49

49 

48

58 

55

57 

57

69

67 

66

67

70 

67

10

57 

57

48

49

49

55 

54

58 

57

69

70 

65

67

70

11

57 

57

48

50 

49

54 

52

59 

56

68

70 

66

66 

69

12

57 

56

47

51 

50

53 

52

59 

57

69

68 

64

66

67

13

57 

56

46

52

50

54 

51

58 

56

70

64 

64

66 

67

14

56 

55

45

52 

52

56 

53

58 

56

72

69 

64

67 

67

15

56 

56

43

52 

50

58 

55

59 

56

73

70 

66

67 

67

Day

16

56 

54

42

50 

48

58 

57

60 

57

70

71 

66

67 

67

17

54 

53

41

48 

47

58 

57

61 

57

68

71 

66

66 

67

18

53 

52

41

48 

47

58 

56

63 

58

69

70 

68

66

67

19

52

52

40

50 

48

56 

55

64 

61

69

68 

66

66 

67

20

53 

52

40

50 

49

59 

54

64 

61

68

70 

64

66 

65
PACIFIC SLOPE BASINS IN CALIFORNIA

EEL RIVER BASIN Continued 

11-4770. EEL RIVER AT SCOTIA, CALIF.--Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

OCTOBER

Mean 

Day dis.

charge

(cfs)

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

IB..

19..

20..

21..

116

115

115

117

119

125

131

136

136

135

132

131

133

138

140

142

145

145

146

149

146

22.. 145

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5.. 6T ::

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

IB..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

145

143

142

155

161

152

147

140

137

4259

Suspended sediment

Mean

tration 

(ppm)

_

8

__

3

 

3

__

Tons

per

day

2.5

2.5

2.5

2.5

2.6

1.7

1.1

1.1

1.1

1.1

1.1

 : 1.1

3 ' 1.1

1.5

1.9

2.3

6 2.3

2.0

1.6

3 1.2

1.2

.8

2 .8

.8

 ! .8

 j «8

.9

 .8

.8

.8

2 .7

44.0

JANUARY

19000

13800

47400

197000

261000

135000

81800

50800

34900

24100

18500

14600

12100

10100

9010

8000

7220

6650

5990

5520

4900

4790

4770

4450

3970

3700

3510

3350

11200

25500

18000

1050630

1590

1590

5820

12700

9380

8100

6800

4900

3300

2340

1700

1220

980

750

602

560

547

81600

S 60900

S 840000

6760000

6610000

2950000

1500000

672000

311000

152000

84900

48100

32000

20500

14600

B 12000

10700

510 B 9200

462 7470

339

290

282

273

260

152

120

110

92

4030

4300

2160

~

5050

B 3800

3650

3520

3120

1630

1200

1040

832

S 156000

296000

S 108000

20760812

NOVEMBER

Mean 

discharge 

(cfs)

136

130

140

186

208

238

250

290

428

668

738

607

1120

4300

6660

4960

3030

6720

16600

8570

4720

3260

2580

9650

21200

15000

11700

8660

6210

Suspended sediment

Mean

concentration 

(ppm)

_

4

5

6

26

12

21

125

1280

2290

990

475

1830

4260

1190

520

250

95

1890

2960

1370

1090

700

360

4940 214

143899 ~

Tons

per

day

0.7

1.1

1.5

2.0

2.2

3.2

3.4

4.7

46

47

24

34

378

S 20100

S 43000

13300

3890

S 62100

S 209000

S 30100

6630

2200

662

S 73800

169000

55500

34400

16400

6040

2850

749519.8

FEBRUARY

15200

15800

12500

22600

32500

28500

23200

17300

13600

11400

9850

8560

7670

7070

6680

6020

5490

4900

6950

9640

8090

7130

7970

10100

11800

13000

11500

9960

344980

1540

1800

1110

3440

4700

2800

2670

1810

1180

1040

720

580

490

425

415

300

200

220

949

1010

450

300

530

830

1170

1260

720

480

~

63200

76800

37500

S 271000

412000

215000

167000

84500

43300

32000

19100

B 13000

10100

8110

7480

4880

2960

2910

S 19800

26300

9830

5780

11400

22600

37300

44200

22400

12900

1683350

DECEMBER

Mean 

discharge

(cfs)

4120

3570

3190

3090

3150

3030

3090

2750

2450

2190

1930

1750

1620

1520

1400

1290

1190

1100

1050

1010

980

941

914

1920

8270

8180

5800

26400

51100

29200

25700

203895

Suspended sediment

Mean

concentration 

(ppm)

147

105

80

68

61

59

67

65

88

60

47

45

36

27

23

22

20

16

15

15

13

9

6

29

1550

940

460

6260

7480

3000

2010

Tons

per

day

1640

1010

689

567

519

483

559

483

582

355

245

213

157

111

87

77

64

48

43

41

34

23

15

220

5 40800

20800

7200

S 695000

S 1100000

237000

139000

2248065

MARCH

9040

8730

8520

7850

8360

11300

14300

23200

42600

46200

33300

22900

20000

18400

16900

18100

16800

14000

15000

14200

12400

11400

450

520

420

340

570

970

1480

3810

5520

4220

2550

1770

1480

1440

1400

1300

1180

970

900

BOO

600

500

10400 415

9540 j 360

8800

8270

7850

7490

7340

7250

7190

467630

360

365

370

390

450

470

520

11000

12300

9660

7210

12900

29600

57100

S 256000

635000

526000

229000

109000

79900

71500

B 64000

63500

53500

36700

36400

30700

20100

15400

11700

9270

8550

8150

7840

7890

8920

9200

10100

2448090

S Computed by subdividing day.

B Computed from estimated-concentration graph.
QUALITY OF SURFACE WATERS, 1966

EEL RIVER BASIN Continued

11-4770. EEL RIVER AT SCOTIA, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

2!..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

7130

7110

7050

6780

6530

6320

6130

5970

5830

5900

10300

15500

13300

9660

7860

7160

7070

6980

6380

5500

4730

4280

4050

3960

3920

3980

3940

3680

3410

3270

193680

Suspended sediment

Mean

tration 

(ppm)

600

69!

770

620

545

500

505

515

480

440

969

1500

1400

710

525

420

380

470

400

269

Tons

per 

day

11600

13300

14700

11300

9610

8530

8360

8300

7560

B 7000

S 27900

S 65500

S 51300

18500

11100

8120

7250

8860

6890

3990

180 2300

146 1690

138 1510

119 1270

133

152

161

152

116

98

~

1410

1630

1710

1510

1070

865

324635

JULY

330

325

320

315

305

302

295

290

285

280

280

280

280

281

282

264

243

243

234

229

221

213

204

195

191

183

178

176

173

167

164

7728

6

3

5

3

3

7

5.3

3.5

2.6

3.4

3.3

4.1

3.2

3.1

2.3

2.3

2.3

2.3

3.0

4.6

5.3

5.0

4.6

8

6

7

5

2

5.2

5.1

4.3

3.6

3.!

3.3

3.7

3.1

3.0

2.4

1.9

1.4

.9

.9

102.5

MAY

Mean 

discharge

(cfs)

3000

2!00

1800

1800

3100

3000

2800

2550

2550

2550

2500

2400

2310

2180

2000

1920

1830

1800

1800

1800

1740

1620

1500

1420

1400

1370

1310

1270

1180

1110

1060

61170

Suspended sediment

Mean

tration 

(ppm)

86

73

64

78

83

98

113

81

62

54

52

48

53

40

38

35

29

22

23

26

18

14

14

14

13

11

Tons

per 

day

697

493

311

379

695

794

854

558

427

372

351

325

299

312

216

197

173

170

141

107

108

114

73

54

53

52

50

45

38

33

29

8520

AUGUST

159

156

15!

150

145

144

140

138

__

3

135

135

130

130

130

125

125

125

125

123

121

115

11!

115

113

113

111

111

111

111

111

111

115

3943

5

2

3

4

__

2

"

__

3

3

~

0.9

.8

.8

.8

1.2

.2

.1

.1

.5

.8

1.4

1.1

.7

.7

1.0

1.0

1.0

1.3

1.3

1.2

.9

.6

.6

.6

.6

.9

.9

.9

.9

.9

.9

30.6

JUNE

Mean 

discharge

(cfs)

1000

920

840

800

770

740

740

740

710

670

640

610

580

555

530

500

475

450

425

405

390

380

375

370

370

360

355

350

345

340

1673!

Suspended sediment

Mean

tration

(ppm)

8

8

_

7

7

 _

6

_

7

4

_

4

Tons

per 

day

22

17

18

17

17

14

14

14

13

13

12

12

9.4

9.0

8.6

9.4

9.0

7.3

5.7

4.4

4.2

4.1

-S 4.0

 i 4.0

4| 4.0

._

3

~

3.9

3.8

2.8

3.7

4.6

284.9

SEPTEMBER

117

119

119

119

119

119

119

119

113

111

111

107

107

107

111

113

113

105

98

123

162

158

151

145

142

136

133

126

125

124

3671

_

 -

2

_

2

1

3

__

8

3

 _

2

_

3

__

0.9

.6

.6

.6

.6

.6

.6

.6

.6

.6

.3

.6

.6

.6

.9

1.2

1.8

2.3

1.6

1.7

1.3

1.3

.8

.8

.8

1.1

1.1

1.0

.7

.7

27.5

Total discharge for year (cfs-days). 

Total load for year (tons)..........

2502220

28223481.3

S Computed by subdividing day.

B Computed from estimated-concentration graph.
EEL RIVER BASIN Continued 

11-4770. EEL RIVER AT SCOTIA, CALIF. Continue

Periodic determinations of suspended-sediment discharge and particle size, water 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

_____________________P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Nov. 20.... .......

Jan. 4...... ......

Feb. 21........ ...

Time 

(24 hour)

1600 

1155 

1530 

0900 

1400

Water 

temperature 

(°F)

56 

52 

46 

46 

48

Sampling 

point

Discharge

(cfs)

4870 

8150 

54000 

169OOO 

7910

Sediment 

concentration 

(ppm)

1530 

1070 

6280 

13500 

438

Sediment 

discharge 

(tons per day)

20120 

23550 

915600 

6160000 

9350

Perc

0.002

31 

18

0.004

42 

26 

27

0.00

55 

32
EEL RIVER BASIN Continued 

11-4775. VAN DUZEN RIVER NEAR DINSMORES, C

LOCATION. Lat 40°29'05", long 123°39'25", temperature recorder at gaging station on 

bridge, 0.3 mile upstream from South Fork, and 2.8 miles west of Dinsmores, Trini

DRAINAGE AREA. 85.1 square miles.

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 75°F on several days during August

Temperature (°F) of water, water year October 1965 to 

October

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Minimum ....

March

Minimum ....

April

Maximum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August 

Maximum

inimum ....

September

inimum ....

i

_

_

43

40

38

34

17

35

53

60

47

58

5?

f.1

5B

73 

63

59

2

_ .

_

44

40

39

35

37

1?

53

61

48

5*

51

A?

55

A4

71

60

3

_

_

44

39

17

35

37

3?

54

60

50

60

50

65

56

A3

7?

60

4

57

54

44

40

39

35

37

34

54

60

52

63

51

67

59

61

7?

60

5

55

53

47

43

4?

39

40

36

54

57

50

59

55

AS

61

61

71

60

6

55

51

46

43

44

41

3R

19

54

A?

49

58

55

68

A?

63

70

60

7

54

53

45

42

44

41

3B

39

54

6?

51

Al

54

A7

61

63

AA

AO

8

-

54

5?

45

44

43

40

37

40

50

60

52

66

56

6fi

6?

A?

69

59

9

54

5?

45

42

41

39

18

41

48

57

52

66

5R

66

56

A?

70

59

10

53

5?

44

41

41

19

19

40

47

61

51

64

59

66

58

64

69

59

11

53

5?

44

41

4?

39

37

40

45

61

50

64

56

6R

60

63

67

58

12

-

53

51

44

41

42

38

3R

41

48

62

50

66

56

64

61

64

62

57

13

51

48

42

39

43

38

15

4?

53

60

52

68

59

65

60

63

61

54

14

51

48

40

3A

43

40

35

43

54

58

49

70

60

66

60

63

64

54

15

53

49

38

35

44

40

15

19

58

60

58

70

63

67

60

64

65

55

Day

16

5?

49

38

34

43

37

15

15

58

61

50

68

60

66

60

64

66

56

17

5?

4A

38

34

41

35

35

15

55

61

49

67

60

68

60

64

64

57

18

47

45

39

34

41

35

17

18

54

66

54

68

60

69

6?

64

6?

58

19

49

4A

38

34

19

15

37

19

53

66

55

67

61

69

63

6?

66

58

20

49

47

38

34

19

33

19

39

53

66

56

64

59

70

61

63

61

60
EEL RIVER BASIN Continued

11-4785. VAN DUZEN RIVER NEAR BRIDGEVILLE, CAL

LOCATION (revised). Lat 40°28'50", long 123°53'23", at gaging station at bridge on State Highway 36, 

Bridgeville, Humboldt County. 

DRAINAGE AREA (revised). 222 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966.

Water temperatures: December 1960 to September 1966.

Sediment records: October 1955 to September 1963.

EXTREMES, 1965-66. Water temperatures: Maximum, 79°F June 14, 15; minimum, 33°F Dec. 18-20, 23. 

EXTREMES, 1960-64, 1965-66. Water temperatures: Maximum, 80°F July 11, 12, 1961; minimum, 33°F Dec. 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 13, 1965....

Jan. 12, 1966. . . .

Apr. 13.. ........

Mean 

discharge

(cfs)

10 

74 

696 

1190 

569 

2010

1200 

178 

64 

24 

13 

11

Silica 

(SIO,)

10 

10

Iron 

(Fe)

Calcium 

(Ca)

25 

47

Magnesium 

(Mg)

4.7 

9.8

Sodium

(Na)

9.7 

6.8 

5.0 

3.4 

3.9 

2.9

3.2 

3.9 

11 

6.6 

8.5 

9.6

Potassium 

(K)

1.0 

17

Bicarbonate 

(HCO,)

158 

140 

75 

72 

75 

62

66 

94 

122 

139 

157 

169

Carbonate 

(CO,)

0 

5 

0 

0 

0 

0

0 

0 

2 

4 

3 

0

Sulfate

(so,)

13 

39

Chloride 

(Cl)

4.6 

2.9 

1.6 

1.2 

.8 

1.1

.6 

1.2 

1.7 

2.4 

3.1 

4.5

Fluorlde

(F)

Nitrat

(NO

0.

.
EEL RIVER BASIN Continued

11-4785. VAN DUZEN RIVER NEAR BRIDGEVILLE, CALIF

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

69

57

59

54

45

42

41

38

45

43

43

38

55

51

63

51

66

52

67

60

77

60

74

62

2

67

57

59

53

45

42

42

41

45

41

38

35

54

51

66

53

62

59

68

57

74

62

75

59

3

66

56

61

58

47

44

43

41

46

43

41

35

59

50

65

53

64

51

74

59

74

62

76

61

4

62

57

62

56

47

45

43

42

46

45

40

37

58

53

64

55

70

53

78

60

71

62

75

62

5

69

59

60

54

49

47

46

43

46

45

45

40

56

51

63

53

64

55

77

62

74

62

74

61

^7

66 70

61 i 60

58

52

49

47

48

46

44

41

44

43

54

51

66

54

62

56

73

62

77

62

74

62

58

56

48

45

48

45

43

41

45

43

55

50

66

54

69

57

74

61

75

60

70

61

8

66

58

59

55

49

47

47

45

43

40

46

44

53

50

57

55

71

57

74

57

76

62

73

61

9

64

59

59

54

48

46

45

43

45

41

47

45

51

50

55

53

73

59

71

57

76

63

73

63

10

65

59

55

51

46

43

43

41

46

43

48

45

49

48

62

52

70

60

76

59

77

62

73

63

1 1 12

63

58

56

53

47

44

44

63

58

58

55

47

42

43

42 41

44

40

48

44

47

45

65

52

71

56

75

60

75

62

69

61

45

41

49

45

49

45

64

53

73

58

70

62

76

60

68

67

13

58

57

56

53

42

40

45

41

41

38

50

47

51

45

62

53

75

58

70

61

75

60

69

56

14J15 16

60 ! 59

57

54

52

41

37

45

43

42

38

49

47

54

48

62

51

79

58

75

61

78

64

70

57

53

55

53

39

35

47

45

45

39

48

44

58

50

64

50

79

63

75

62

77

63

70

57

58

51

55

51

39

34

45

41

45

38

44

41

58

53

66

52

74

62

74

62

76

62

72

57

17

61

49

55

51

39

34

43

39

45

39

44

38

57

51

67

52

73

60

78

62

76

64

71

61

18

58

56

51

49

39

33

43

41

45

41

47

42

56

48

72

52

76

60

76

64

75

63

67

62

19

64

57

52

49

38

33

42

39

45

43

47

44

55

46

70

56

73

60

76

63

74

62

70

60

20

62

55

53

51

39

33

41

37

47

43

48

43

55

46

69

56

72

59

76

62

76

61

64

61
EEL RIVER BASIN Continued 

11-4785. VAN DUZEN RIVER NEAR BRIDGEVILLE, CALIF. Co

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Jan. 3, 1966... ...

Mar. 7. ...........

Apr. 4. ...........

Aug. 12....... ....

Time 

(24 hour)

1540 

0935 

1025 

1305 

1450 

1635

1300 

1650 

1155 

1450 

0855 

0910

Water 

temperature 

(°F)

66

51 

41 

42 

43 

43

43 

56 

56 

72 

64 

63

Sampling 

point

Discharge 

(cfs)

10 

1070 

255 

3460 

6600 

1740

2420 

795 

426 

147 

30 

13

Sediment 

concentration 

(ppm)

20 

569 

38 

2210 

5340 

1150

1500 

206 

36 

3 

2 

1

Sediment 

discharge 

(tons per day)

0.5 

1640 

26 

20600 

95200 

5400

9800 

442 

41 

1.2 

.2 

T

Per

0.002

-

19 

19

0.004

-

29 

23 

36

2fi

0.0

-

2

3

T Less than 0.05 ton.
MAD HIVER BASIN 

11-4805. MAD RIVER NEAR FOREST GLEN, CALIF

LOCATION. Lat 40°27'30", long 123°30'35", temperature recorder at gaging station on 

and 7.0 miles northwest of Forest Glen, Trinity County. 

DRAINAGE AREA. 143 square miles. 

RECORDS AVAILABLE. Water temperatures: November 1960 to September 1966.

Sediment records: January 1957 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 70°F Sept. 28, 29; minimum, 39°F Ja

EXTREMES, 1960-66. Water temperatures: Maximum, 79°F June 25, 1961; minimum, 35°F J

Temperature (°F) of water, water year October 1965 to 

Ouobei

Maxn

Mmii 

Noveml

Maxn

Minn 

Decemt

Maxn

Mini: 

January

Maxn

Minimun 

February

Max.

Mini 

March

Maximun

Mimn 

April

Maxir,

Mimn 

May

Maxir

Mmir 

June

Max.r

Mimn

July

Maxir

Mmin 

August

Maxir

Mimn 

St.-pr.eml

Maxir

Mimn

num

er

num .... 

er

num ....

num ....

num ....

mm ....

num ....

num ....

mm ....

lum ....

num ....

num ....

num ....

num ....

Day

1

60

55

52

42

41 

50

55

46

50

57

67

57

66

58

2

58

54

54

41

40 

48

56

46

50

54

68

58

66

58

3 4 5,6,7

58 57 60 60 60

53 54 56 i 56

56

42

40 

50

54

47

50

55

67

58

66

56

40

39 

50

55

52

50

57

66

55

41

39 

50

52

49

53

58

67

56

55 55

 41

42

4,

50

55

48

54

58

42

50

56

48

54

58

68 68

57 58 58

66

58

66 1 67 

58 58 58| 57 

I 

8 1 9

59

55

55

59

55

54

10

58

55

54

41 40' 40

42

48

55

49

54

58

66

42 42

47

54

50

56

58

68

56 58

66

47

58

50

56

56

68

59

66 66

57 _57l57_

n|..

58 58

54 54

54 54

40 40

47 47

57' 58

48

54

48

54

5 6 ', 5 9

67

58

65

57

68

59

13

58

54

54

40

50

58

50

56

59

67

58

62 62

55 [ 56

i 14 | 15 16

58

56

53

56

54

54

54

52

54

41

51

56

48

58

59

66

58

65

57

41

51

57

48

59

40

52

58

49

58

58! 58

66

58

65

56

65

58

67

57

171819

56

52

53

40

52

58

48

58

58

65

58

66

56

5i>

52

40

50

60

50

57

62

66

56

66

57 61

58

56

52

40

50

60

50

58

20

57

55

52

40

50

61

51

57

59 54

66

57

66

58

68 164

60 61
MAD RIVER BASIN Continued 

11-4805. MAD RIVER NEAR FOREST GLEN, CALIF. Con

Periodic determinations of suspended-sediment discharge and particle size, w

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, 

_____________P, pipet; S, sieve; V, visual accumulation tube; W, in dist

Date of collection

Oct. 5......... ...

Oct. 18. ..........

Oct. 31........ ...

Nov. 7. ...........

Nov. 19....... ....

Nov. 26... ........

Jan. 9. ...........

Jan. 14... ........

Jan. 29. ..........

Feb. 2.......... . .

D Daily mean disch

Time 

(24 hour)

1630 

1720 

1430 

1530 

1700 

1600

1700 

1630 

1700 

1530 

1400 

1430 

1500

1600 

1400 

1655 

1600 

1000 

1300

1500 

1400 

1400 

1150 

1600 

1400

1400 

1500 

1400 

1500 

1500 

1500

1500 

1400 

1500 

1300 

1330 

0955 

irge.

Water 

temperature 

(°F)

60 

62 

60 

60 

60 

58

55 

54 

53 

53 

47 

48 

47

47 

46 

44 

42 

40 

38

44 

42 

38 

40 

40 

40

42 

42 

42 

42 

42 

42

42 

42 

42 

42 

42 

40

Sampling 

point

Discharge 

(cfs)

D 69 

D 71 

D 79 

D 77 

D 75 

D 73

85 

129 

349 

323 

425 

376 

353

251 

243 

243 

135 

D 310 

976

D 860 

2570 

D 7800 

2220 

1390 

1010

795 

660 

585 

540 

520 

495

410 

370 

370 

675 

475 

460

Sediment 

concentration 

(ppm)

3 

3 

5 

4 

4 

4

30 

20 

38 

53 

47 

25 

19

12 

7 

11 

3 

5 

335

17 

625 

459 

222 

136 

137

127 

131 

129 

118 

112 

116

108 

80 

85 

40 

49 

40

Sediment 

discharge 

(tons per day)

0.6 

.6 

1.1 

.8 

.8 

.8

.9 

10 

36 

46 

54 

25 

18

8.1 

4.6 

7.2 

1.1 

4.2 

883

39 

4340 

9670 

1330 

510 

374

273 

233 

204 

172 

157 

155

120 

80 

85 

73 

63 

50

Pe

0.002 0.004 0
MAD RIVER BASIN Continued 

11-4805. MAD RIVER NEAR FOREST GLEN, CALIF. Contin

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Feb. 6............

Feb. 9............

Feb. 17...........

Ma . 9.. ..........

Ha . 11.... .......

Ha . 16. ..........

Hay 4.............

Aug. 18. ..........

Time 

(24 hour)

1330 

1100 

1430 

1500 

1500 

1200

1500 

1200 

1300 

1330 

1100 

1430

0800 

1200 

1600 

0930 

0930

1300 

1200 

1530 

1200 

1430

1635 

1130 

1500 

1200 

1700

1130 

1540 

1405 

1400 

0750

Water 

temperature

(°F)

41 

41 

42 

42 

42 

43

45 

43 

44 

43 

39 

40

40 

40 

41 

41 

40

43 

41 

44 

46 

50

51 

49 

46 

50 

56

54 

56 

62 

65 

59

Sampling 

point

Discharge

(cfs)

905 

1180 

710 

435 

390 

440

480 

490 

460 

440 

415 

1110

3070 

3200 

3180 

2850 

1960

1220 

990 

810 

490 

450

440 

410 

395 

430 

208

155 

121 

D 92 

D 58 

109

Sediment 

concentration 

(ppm)

138 

61 

44 

36 

34 

28

26 

24 

25 

26 

22 

65

133 

135 

105 

112 

69

36 

42 

40 

26 

24

28 

24 

26 

17 

11

9 

10 

5 

3

7

Sediment 

discharge 

(tons per day)

337 

194 

84 

42 

36 

33

34 

32 

31 

31 

25 

195

1100 

1170 

893 

862 

365

119 

112 

87 

34 

29

33 

27 

28 

20 

6.2

3.8 

3.3 

1.2 

.5 

1.9

Perce

0.002 0.004 0.00

D Daily mean discharge.
PACIFIC SLOPE BASINS IN CALIFORNIA

h c

M O

1

"3

Q

.

\j Jj i

> 

C

n

O

o

CN

CO

IX

 O 

CS

10

CN

CN

C->

CN

CN

CN~

O 

CN

0

CO

^

 a

2

2

"

_

co

"

 o

10

"*

CO

CM

 

E

^ £

11

1 I 1 ** * * -» * * * irvirv KM^ oo -o o

i ! ! 5m 35 i ! 55 ! ! ££ ! ! ! !

', 55 53 35 ! ', S3 «"* "" ~S ! !

! 5 S 3* 35 !! 55 £ £ £ £ SS !!

I mo m,M CM~ m,M o r> «> CM o m o CM , ,

! 55 35 55 33 53 SS ££ S5 II

, .00. -M^ CM^ mm ,, o^ N * o^

1 ^,0 >o CM cx,^ mm cor- m CM >o ^ CM en «*

I =o~ o^ CM^ men 0=0 r, CM » -x,m ^*

1 oo « « cn mcM cnm « o CM « ,0 <f oo -o »

! S^ 53 33 33 JS SS SS SS oS

! SS 53 33 35 5? K£ SS So SS

! ^S 35 33 35 SS JIS "Z SS So

I S* 33 33 55 53 SS S* So S3

! SIS 33 33 55 35 ££ SS So S3

1 ^S 53 53 55 SS S^ S* S3 S3

! KS 55 53 55 55 £S SS SS S2

! SS 35 33 55 ?5 SS J?; SS So

! SS 55 33 35 5S ^S SS SS So

i SS 55 33 35 SS ^S SS SS SS

i «« 5S 33 33 SS SS £?, So J2

1 cnin f-o mm mcM o* CM<M in* OCM in.it

i !?!S 55 3* 55 55 £K S* SS SS

1 *o. <o t~ mcM m<M OUN CMCM in* OIM **

! ?* 33 33 35 SS SS S3 2S

,* ** 5* ,5 ££ «S S* So

! **   **  ^^ ^^ 0^> 00

1 **   **  ITMT, ^^ o^> 00

1 **   **  *^ KMT, 0>0 00

1 ** ** ** *m *M, ^^ o* 00

i ** ** ** *S ^S ^* SS .00

1 0* ^10. mm (M0> oo com oo mrsi

E, EE EE EE EE EE ES EE EE EE E

3^33>-33 33 33 33 33 33 33 33 3

B-o £ E_£ E E ^E £ >- E E EE EE EE Eg EE £

S *SS ^SS 3 SS-SSS aSiS^SS S'SS cSS^SS ^S'

E ^ E

1^ 1

i|s

__

E

3

s
MAD RIVER BASIN Continued

11-4810. MAD RIVER NEAR ARCATA, CALIF.

LOCATION. Lat 40°54'35", long 124°03'35", at gaging station 100 feet upstream from bridge on U.S. Hi

2.8 miles northeast of Arcata, Humboldt County. 

DRAINAGE AREA. 485 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1958 to September 1966.

Water temperatures: December 1957 to September 1966.

Sediment records: December 1957 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F June 15, 16, Aug. 12; minimum, 33°F Dec. 17-20.

Sediment concentrations: Maximum daily, 11,200 ppm Jan. 4; minimum daily, 4 ppm May 31.

Sediment loads: Maximum daily, 887,000 tons Jan. 4; minimum daily, 0.6 ton Oct. 19. 

EXTREMES, 1957-66. Water temperatures: Maximum (1963-64, 1965-66), 77°F June 15, 16, Aug. 12, 1966; 

Sediment concentrations: Maximum daily, 21,500 ppm Dec. 23, 1964; minimum daily, 1 ppm on many day

Sediment loads: Maximum daily, 3,140,000 tons Dec. 22, 1964; minimum daily, 0.1 ton on many days i

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 11, 1965. .. .

Jan. 10, 1966.... 

Feb. 14......... .

Sept. 12.........

Mean 

discharge

(cfs)

59 

98 

1130 

4390 

1530 

3650

1940 

245 

127 

54 

80 

90

Silica 

(S10,)

6.7 

9.4

Iron 

(Fe)

Calcium 

(Ca)

24 

35

Magnesium 

(Mg)

4.4 

5.7

Sodium 

(Na)

5.6 

5.0 

3.6 

3.1 

3.3 

3.0

3.3 

3.8 

4.7 

5.5 

5.2 

4.6

Potassium 

(K)

1.0

1.1

Bicarbonate 

(HCO,)

133 

122 

64 

56 

60 

54

53 

90 

116 

122 

125 

126

Carbonate 

(CO,)

3 

4 

0 

0 

0 

0

0 

0 

0 

2 

0 

0

Sulfate

(so«)

12 

15

Chloride 

(Cl)

2.4 

2.5 

2.1 

1.4 

1.2 

1.4

1.0 

2.0 

2.0 

2.8 

2.1 

2.1

Fluoride

(F)

Nitrate 

(NO

0.4 

1.0

A Calculated from determined constituents.
PACIFIC SLOPE BASINS IN CALIFORNIA

I inm I I i 14-

> in I m 4 14

l o104

Eg SS 33 33 ss>-esSS

33

es

gg gE Eg EE EE

33n1^3 se-oes
QUALITY OF SURFACE WATERS, 1966

MAD RIVER BASIN--Continued

11-4810. MAD RIVER NEAR ARCATA, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

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..

Total

1..

2..

3..

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..

Total

APRIL

Mean 

discharge

(cfs)

1660

1570

1480

1400

1350

1280

1230

1160

1140

1580

2530

3140

2390

1940

1590

1350

1240

1110

1020

955

905

630

716

660

640

616

576

520

476

487

37561

Suspended sediment

Mean

tration 

(ppm)

250

210

180

170

170

170

140

60

110

260

1260

1020

290

210

170

160

140

126

106

127

82

64

71

53

50

50

47

107

73

88

-

Tons

per 

day

1130

690

719

643

620

586

465

251

339

1110

6610

8650

1670

1100

730

583

469

376

292

327

200

188

137

94

86

83

73

150

94

116

30985

JULY

62

56

56

76

66

65

68

52

51

57

63

70

57

56

55

54

54

54

53

53

53

53

53

53

53

53

53

53

51

56

65

1776

164

370

8

105

29

360

237

294

190

170

306

324

114

120

170

163

167

 

 -

200

198

138

266

179

~

27

56

6.6

2.5

1.5

16

5.3

51

33

37

50

36

26

46

4,

31

19

17

17

24

26

24

26

30

29

28

20

41

25

26

33

862.1

MAY

Mean 

discharge 

(cfs)

533

460

435

406

399

373

377

374

347

353

314

303

297

297

286

259

251

245

223

222

211

216

194

167

180

174

163

164

154

179

216

6614

Suspended sediment

Mean

concentration 

(ppm)

65

45

28

__

19

21

57

33

14

.»

11

6

7

7

49

36

46

7

29

31

124

7

47

63

32

38

4

Tons

per 

day

94

62

53

31

32

35

19

21

53

31

12

7.4

6.8

6.4

5.4

4.9

33

25

29

4.2

17

18

65

3.5

23

30

16

14

16

3.9

2.3

775.6

AUGUST

65

65

65

65

65

65

65

65

65

65

65

65

65

65

80

105

105

105

96

96

96

96

96

93

93

93

93

93

93

93

93

2529

280 49

152 i 27

160

160

190

136

210

180

130

121

26

112

--

5

--

__

6

 

--

5

16

66

114

146

182

95

 .

--

100

65

70

~

28

26

33

24

37

32

23

21

4.9

20

4.0

.9

2.2

9.1

2.3

1.7

1.3

1.3

4.7

23

30

37

46

24

22

23

25

16

16

616.4

JUNE

Mean 

discharge

(cfs)

179

181

162

155

149

134

136

137

132

131

129

129

129

126

127

120

112

106

101

97

95

83

73

59

50

56

56

66

78

68

3376

Suspended sediment

Mean

concentration 

(ppm)

26

98

98

6

309

92

Cl

6G

165

60

91

 ..

128

250

152

260

220

160

-_

121

156

200

196

210

120

__

226

220

340

350

Tons

per 

day

14

48

46

2.5

124

33

30

25

59

28

32

32

45

85

52

84

67

46

31

32

41

45

39

33

16

29

34

39

72

64

1329.5

SEPTEMBER

93

93

92

92

92

92

92

92

92

92

92

90

90

90

90

90

i 90

1 90

90

90

90

90

90

115

150

155

160

120

92

66

2974

105

109

__

6

_^

__

5

-_

5

_

__

5

__

127

26

27

11

3.7

2.0

1.7

1.5

1.2

1.2

1.2

1.2

1.2

112

1.7

31

158 38

175

73

63

65

110

163

177

110

200

232

43

18

15

14

16

27

40

55

57

46

66

75

155! 39

160

~

43

72*. 8

Total discharge for year (cf s-days) .................................................... 445695

Total load for year (tons) ............................................................. 3353006.9
PACIFIC SLOPE BASINS IN CALIFORNIA

MAD RIVER BASIN Continued 

11-4810. MAD RIVER NEAR ARCATA, CALIF. Continued

Suspended 

(Where no

sediment, water 

concentrations

year October 1965 to September 1966 

are reported, loads are estimated)

Day

1..

2..

3..

4..

5..

6..

7..

8..

9»

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean 

discharge 

(cfs)

41

42

41

44

43

43

44

51

55

58

59

59

58

71

97

110

98

89

79

79

77

69

71

70

66

61

58

55

68

83

64

2003

Suspended sediment

Mean

concentration 

(pptn)

100

85

41

60

14

12

37

84

 

7

7

Tons

per

day

11

11

6.0

10

4.1

4.8

1.3

8.3

3.7

2.2

1.9

1.9

2.2

7.1

19

25

7.9

1.7

.6

1.5

3.7

39 ' 7.3 :°

37

14

17

13

13

10

6.1

3.0

2.1

2.8

3.8

4.7

200.7

JANUARY

2230

2040

8820

29700

25900

21100

11300

8450

6000

4390

3420

2640

2220

1980

1840

1790

1230

1550

1450

1280

1210

1450

1480

1260

1200

1130

1090

1050

4040

4*60

3950

162050

280

296

3660

11200

9410

9890

5200

4010

2800

1000

740

564

480

419

345

338

300

280

243

220

208

204

184

162

142

142

120

135

3220

1600

710

"

1690

S 1920

S 105000

S 887000

S 664000

S 584000

159000

91500

45400

11900

6830

4020

2880

NOVEMBER

Mean 

discharge 

(cfs)

54

53

54

67

97

82

77

98

114

97

93

171

443

749

552

444

401

1040

1760

1010

860

698

644

1790

2790

2030

1750

1190

1010

906

21124

2870

2360

1990

2790

3860

4640

3830

3040

2470

2570

2170

1920

1680

2240 i 1530

1710

1630

996

1170

951

760

680

799

735

551

460

433

353

383

S 42800

21000

7570

2650361

1410

1320

1270

1240

1350

1720

1500

1450

1890

1830

1810

1920

1800

1670

59900

Suspended sediment

Mean

concentration 

(ppm)

60

--

7

6

7

--

30

__

83

195

504

168

40

78

1130

1930

350

194

112

85

1290

598

363

273

168

133

129

Tons

per

day

8.7

4.3

1.0

1.1

1.6

1.3

1.5

4.2

9.2

9.2

5.5

K 60

233

DECEMBER

Mean 

discharge 

(cfs)

790

666

675

849

1150

1130

895

816

741

676

630

580

548

S 1070 536

250

48

84

S 4000

S 9560

954

450

211

148

S 6860

S 4280

S 2000

S 1330

540

363

316

32804.6

FEBRUARY

570' 4420

480 3060

770 I 4140

1000 1 S 8550

1220' 12700

1240

570

410

440

510

290

280

190

160

160

130

110

108

181

138

255

330

500

285

250

313

200

190

15500

5890

3370

2930

3540

1700

1450

862

661

609

463

377

362

660

641

1030

1290

2S50

1410

1220

1620

972

857

82834

490

447

421

379

363

349

Suspended sediment

Mean

concentration 

(ppm)

158

100

114

186

210

280

144

98

82

65

50

48

54

Tons

per

day

337

180

208

426

652

854

348

216

164

119

85

75

74

78

 1 67

_

17

14

11

344 ' 18

378 75

373 85

905 239

1480

1120

935

6870

5280

3530

180

6170

2010

930

3280 390

37626

53

30

17

14

10

17

77

86

1C 810

1000

600

454

S 144000

S 29800

8860

3450

193161

MARCH

1650

1820

170 757

220 1080

1810 i 190 929

1730

1820

160 747

255 1250

3160 1290 S 12900

4*70 , 1600 19300

6100 2240 36900

7820 2370

8450 3940

5370 2170

4160

3950

3650

3590

4140

3590

3100

4650

3740

4930

3710

2820

2420

2200

2060

1960

1870

1790

1750

1680

105960

1250

800

660

750

740

500

400

1440

860

1250

420

320

290

250

240

250

230

220

240

200

--

50000

89900

31500

14000

8530

6500

7270

8270

4850

3350

18100

8680

16600

4210

2440

1890

1490

1330

1320

1160

1060

1130

907

358350

S Computed by subdividing day.

K Computed from estimated-concentration graph and subdividing day.
MAD RIVER BASIN Continued 

11-4810. MAD RIVER NEAR ARCATA, CALIF. Conti

Periodic determinations of suspended-sediment discharge and particle size, wa

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, plpet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Apr. 8.. ..........

Time 

(24 hour)

1645 

1315 

1130 

0900

0900 

1550 

1000 

1600 

1530

Water 

temperature

(°F)

53 

44 

42 

44

42 

48 

43 

45 

54

Sampling 

point

Discharge 

(cfs)

976 

482 

7230 

21800

13700 

3140 

1945 

3580 

1150

Sediment 

concentration 

(ppm)

238 

55 

3030 

11000

7900 

1560 

304 

1200 

20

Sediment 

discharge 

(tons per day)

627 

71.6 

59150 

647500

292200 

13220 

1600 

11600 

62.1

Per

0.002

24 

23

0.004

23 

30

19 

35

29

0.0
REDWOOD CREEK BASIN

11-4825. REDWOOD CREEK AT ORICK, CALIF.

LOCATION. Lat 41°17'20", long 124°03'30", at gaging station on pier of bridge on U.S. Highway 101 a

Prairie Creek.

DRAINAGE AREA. 278 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1958 to September 1966 (discontinued). 

Water temperatures: October 1965 to January 1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 12, 1965....

Jan. 11, 1966....

Sept. 13. ........

Mean 

discharge 

(cfs)

18 

86 

475 

2670 

1180 

2200

1280 

205 

123 

44 

20 

19

Silica 

(SiOa)

5.8 

7.7

Iron 

(Fe)

Calcium 

(Ca)

25 

27

Magnesium 

(Mg)

1.8 

3.2

Sodium

(Na)

5.9 

5.4 

4.6 

3.1 

3.5 

3.0

3.4 

3.8 

4.4 

4.8 

5.7 

5.0

Potassium 

(K)

0.7 

.7

Bicarbonate 

(HCO,)

79 

96 

63 

35 

44 

34

45 

68 

75 

76 

71 

74

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

2 

0 

0

Sulfate 

(SO.)

16 

19

Chloride 

(Cl)

6.8 

5.0 

3.3 

2.8 

2.1 

2.2

1.4 

3.0 

4.0 

5.0 

6.0 

5.0

Fluoride 

(F)

Ni

tra

(NO

0

October

Minimum .... 

November 

Maximum .... 

Minimum .... 

December

Minimum .... 

lanuary

1

61 

54

55 

53

48

2

60 

54

57 

53

48

3

60 

55

62

57

48

4

60 

54

63 

59

50

-

5

63 

58

60

55

51

6

64 

58

59 

53

52

7

63 

58

58 

56

53

.

8

59 

57

60 

56

52

9

58 

57

61

56

50

r-60 

56

57 

55

49

11

59 

54

56 

55

48

,2

58 

55

58 

56

50 

46

13

57 

54

58 

56

45

14

63 

56

56 

55

43

15

62

55

58 

54

41

Day

16

61 

52

59

55

40

17

62 

52

58 

54

39

18

61

57

54 

53

39

,9

63 

57

54 

53

39

20

60 

56

57 

54

39

2

6

5

4
KLAMATH RIVER BASIN 

11-4922. CRATER LAKE NEAR CRATER LAKE, O

LOCATION.--Lat 42°58'45", long 122°04'45", temperature recorder at gaging station 6 

Klamath County.

DRAINAGE AREA.--26.2 square miles, of which 2O.5 square miles is lake area. 

RECORDS AVAILABLE.--Water temperatures: October 1963 to September 1966.

EXTREMES, 1965-66.--Water temperatures: Maximum, 60°F Aug. 18, 19; minimum, 35°F o

EXTREMES, 1963-66.--Water temperatures: Maximum, 60°F Aug. 18, 19. 1966; minimum 

March 1966.

Temperature (°F) of water, water year October 1965 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

Minimum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum ....

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

Day

1

51

51

48

48

43

43

39

39

37

37

37

37

37

37

39

39

40

40

48

48

56

55

56

56

2

51

51

48

48

43

43

39

39

37

37

37

37

37

37

39

39

40

40

48

48

55

54

56

56

3

51

51

48

47

43

43

39

39

37

36

37

37

37

37

39

39

41

40

48

48

57

55

56

56

4 5

51

51

47

47

43

43

39

39

36

36

37

37

38

37

39

39

41

41

48

48

58

56

56

56

51

51

47

47

43

43

39

39

36

36

37

36

38

38

39

39

41

41

48

48

57

57

56

56

6

51

51

47

47

43

43

39

39

36

36

36

36

38

38

39

39

41

41

50

48

57

57

57

56

7, 8

51

51

47

46

43

43

39

39

36

36

36

36

38

38

39

39

41

41

49

49

57

57

57

57

51

51

46

46

43

43

39

39

37

36

36

36

38

38

39

39

41

41

49

49

57

57

57

56

9

51

51

46

46

43

43

39

39

37

37

36

36

38

38

39

39

41

41

49

49

57

57

56

56

10

51

51

46

46

43

43

39

39

37

37

36

36

38

38

39

39

42

41

49

49

57

57

56

56

11

51

51

46

46

43

42

39

39

37

37

36

36

38

38

39

39

42

42

49

49

57

57

56

56

12

51

51

46

46

42

42

39

39

37

37

36

36

38

38

39

38

42

42

50

49

57

56

56

56

13

50

50

46

46

42

41

39

39

37

37

36

36

38

38

38

38

42

42

50

50

57

57

56

56

14

50

49

46

46

41

41

39

39

37

37

36

36

38

38

38

38

42

42

50

50

58

57

56

55

15

49

49

46

45

41

41

39

38

37

37

36

36

38

38

38

38

42

42

50

50

58

58

55

55

16

49

49

45

45

41

41

38

37

37

37

36

36

39

38

38

38

43

42

50

50

58

58

55

55

17

49

49

45

45

41

41

37

37

37

37

36

35

39

39

39

38

44

43

50

50

58

58

55

55

18

49

49

45

45

41

41

37

37

37

37

35

35

39

39

39

39

45

44

51

50

60

58

55

55

19

49

49

45

45

41

40

37

37

37

37

35

35

39

39

39

39

45

44

51

51

60

57

55

54

20

49

48

45

45

40

40

37

37

37

37

35

35

39

39

39

39

46

44

53

51

58

56

54

54
KLAMATH RIVER BASIN Continued

11-5165.3. KLAMATH RIVER BELOW IRON GATE DAM, 

LOCATION. Lat 41°55'40", long 122°26'35", at gaging station 0.1 mile downstream from Bogus Creek, 0

5.9 miles northeast of Hornbrook. 

RECORDS AVAILABLE. Chemical analyses: October 1961 to September 1966.

Water temperatures: October 1962 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 70°F on several days during August; minimum, 35°F 

EXTREMES, 1962-66. Water temperatures: Maximum, 72°F July 11 and on several days during August 196

days during January 1965.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

June 8 ...........

Sept. 12. ........

Mean 

discharge 

(cfs)

2530 

3010 

4380 

3420 

1620 

1500

2100 

1140 

715 

729 

1040 

1300

Silica 

(Si02)

21 

27

Iron 

(Fe)

Calcium 

(Ca)

14 

14

Magnesium 

(Mg)

6.6 

8.3

Sodium 

(Na)

26 

16 

16 

18 

14 

26

22 

23 

36 

30 

39 

24

Potassium 

(K)

2.5 

3.2

Bicarbonate 

(HCO,)

83 

78 

76 

94 

78 

93

102 

104 

144 

135 

132 

94

Carbonate 

(CO,)

8 

0 

0 

0 

0 

0

1 

0 

4 

0 

2 

0

Sulfate 

(S04 )

23 

30

Chloride 

(CD

5.5 

3.2 

2.9 

3.0 

3.6 

4.5

5.5 

3.3 

5.0 

4.7 

7.5 

4.5

Fluoride 

(F)

N

tra

(N

3

6

7

5

5

4

2

1

1

1

1

5
QUALITY OF SURFACE WATERS, 1966

EH EH ES EE HE HE HE HE EH HE e e e E 33 £ 33 J", 33 33 33 33 33 33 3 3 33 3 3S 3 3 . E S-Q E e^ e E ee>-gE ee ee ee eg eg ee-agg

"iiI i °.l is s i.i § is-g'i's- is ii 'i.i i:sii:sgis 

ss gss yss gssiss sss g,ss s-ss sss^-ss «ss ass
PACIFIC SLOPE BASINS IN CALIFORNIA

a h

 H O

o s

J3 0

§

o 

« Q

§ 5 h h

i :

o >> £ 3

a rH

g a

in 01

0 >

'a

CO 

O . -U CT1

M 0-H

a X3 o ri

0 M g

+j 01 a o

J3 Q -H 4J

 H MO O

b ri a o oo

J a h <H o

< O g <-> 

0 « -

 o - o in 3 to

O « -H >, a 51

a o in « a

 H (K +J -ri h

+j o m rH a o

0 2 M h - 0

i 35 i-i co > H o

«; « -r> r, § !? 2 

n w rt oi >i

PS PH r) >l S fl ° r)

WO O *-» 01 in. ^ 0)

O o O w ofl'"-

P g h 9 o i-l to h 

 < O O 4J N 1 O

a H o i» oi * +j

< F-i r) -H -<j< 01 tO erj 

U O S M CO h SI S

hin . o

CO 01 h g g

H s « a a a b in o o o -H i-i o

in -a o a a 01

m - C p h g

 * 0 ...... +J

 OH U U U erj

M <H h h h O

» 0 999 a 

cq . +j +j 4^ g 

N +J w a a a o

O rH 0) O O

a ja s t&t

r-l h O »-> »-> »->

0 h

: 9 01 01 o

O U O'-H +J +^ 

O O U erj erj erj

- rH * * * 

m-H 00 1 1 1 m S . i i i

H CO X H CO CO 

* 1 J CO tO o i a i i +j .am-* a) -a < j <o <o

1 S (B «!rH rt '. .«5 ..

§

J3 W W W 

o o w H u in M rH <;a a zco

< O 1-1 O « C6 H 

0 <O H H 

O OS H k «

j OK y a

. 

^

u

X

i

n

0

m

o

<N

CO 

<N

IX

-O

IO

CN

OJ

S

S

OJ

0

o

CO

!^

2

^

2

2

_

o

CO

-o

^

C-5

0.

-

5

S3 ! ! mS 33 ! ! 53 ! ! ! ! ! !

S5 3m mS 33 !! 55 SS !! !!

SS mm SS 33 ,' ! 53 SS ! ! ,' !

-4 m^ ^ oo o-o, oo , , , ,

l;5 3m SS 33 3£ 55 S?; !! !!

«o«o -,o NN mm oo . r- o^ I , , ,

ONCO 4- <M <M mm oo cor- o-o. II II

£5 52 ^ 33 53 55 ££ ! ! ! '

£3 $2 SS 33 33 33 SE ! ! 1 !

S3 33 SS 33 33 3S ££ ! ! ! i

££ SS SS 53 3£ SS S^ ! ! ! !

SS 52 SS 33 mm SS S£ I! 11

SS 55 SS 33 SS 33 ££ i! !!

SS S3 mS 33 33 22 SS ! ! ! !

SS £5 mm 33 33 23 SS ! ! ! !

SS SS mm 23 33 33 SS 1 ', i !

SS £S SS 23 53 33 S2 1! !!

^tvj o- o> r-, o- 4m m <M r-, o 44 II II

 £»m 44 4m 44 44 44 inm II II

SS S3 3m 33 33 33 SS !! !!

inrn mo- r-, oo mtvj tvj rn oo- mm || II

4

SS S3 33 33 33 § £ S~ ! ! ! !

 Or* -.00 NO NO- NN cor- mN || ,|

4

SS SS 33 SS 33 SS KS ! ! ! !

 04 m r- 4N coo rg-i r-«j rgo II II

2S SS ?? SS ?3 mm SS ! ! ! !

S5SS5m l! 55mm°5 !! !!

S5 S5 3S ! ! 33 SS SS SS ! !

 04 ^4 4m , , 44 4m ^4 0-0 , ,

ss^is^is eg es eg ee eg gg e

u 1 gj e 6Ji 6 6 ^6 1 e-1 6 11 11 66 11 1

|ll|ll|II||||||j||||||II|||||

r

r

r

<:

c

r

c

c

0

g E

 3 -

6 E

i p

1 -0 0

or- II

:S SS

-S SS

0 P SS

ss ss

:>- N4

3 rH ON

r- rIS SS

o£ £S

SP SS

S S S S

or^ SS

ort SS

g|£ SS

1 r- o

! SS

! SS

1 4 r1 r-N

1 -o -o

1 rH 4

I S S

1 o-m

1 0 4

1 r- o

1 N 4

i r- -o

i PS

1 o o

1 r- 1

6 _ S g

3 £ 3 3

H-Q 6 6

2a22
KLAMATH RIVER BASIN Continued 

11-5175. SHASTA RIVER NEAR YREKA, CALIF.

LOCATION. Lat 41°49'30", long 122 0 35'40", at gaging station 0.5 mile upstream from mouth, and 7 mile

DRAINAGE AREA. 793 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1958 to September 1966.

Water temperatures: June 1965 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 86°F Aug. 2, 3; minimum, 35°F Dec. 24. 

EXTREMES, June 1965 to September 1966. Water temperatures: Maximum, 86°F Aug. 2, 3, 1966; minimum, 

Chemical analyses, in parts per million, water year October 1965 

Date 

of 

collection

Oct. 5, 1965.....

Sept. 12.........

Mean 

discharge 

(cfs)

138 

182 

231 

744 

242 

218

96 

72 

62 

11 

9.5 

36

Silica 

(S10,)

39 

49

Iron

(Fe)

Calcium 

(Ca)

38 

44

Magnesium 

(Mg)

39 

48

Sodium

(Na)

38 

36 

40 

27 

40 

34

30 

44 

48 

56 

59 

63

Potassium 

(K)

4.1 

5.0

Bicarbonate 

(HCO.)

280 

274 

297 

225 

285 

248

249 

347 

326 

394 

398 

420

Carbonate 

(CO,)

19 

11 

11 

2 

12 

15

17 

13 

22 

24 

16 

20

Sulfate 

(SO.)

11 

11

Chloride 

(Cl)

22 

21 

22 

16 

22 

18

16 

25 

25 

36 

36 

38

Fluorlde 

(F)

Nitrate 

(NO

0.4 

.9
KLAMATH RIVER BASIN Continued

11-5175. SHASTA RIVER NEAR YREKA, CALIF. Co

Temperature (°F) of water, water year October 1965 to 

Month

October 

Maximum ....

November

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March

Minimum .... 

April

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

i

63

55

54 

50

39 

36

45 

42

46 

42

64 

53

68

53

64 

54

72 

64

84 

69

2

63 

56

54

51

39 

38

44 

40

44 

41

63

53

70 

56

59 

55

70 

60

86

71

3 4

63

55

55 

53

40 

39

46

61 

52

66

56

63

52

76 

60

86

73

60 

55

58 

54

40 

38

44

64

53

66

58

68 

54

80 

62

83 

70

5

63

56

56 

52

38

45

64

53

65

57

68

57

83 

66

83 

69

r 

6 7

64 

56

\\

64 

56

53 

51

8-

64 

56

54 

52

42

46

65 

55

70 

56

64 

60

81 

66

83 

68

44

48

66 

56

70 

56

68 

60

78 

65

83 

69

9

64

56

55 

52

10

63 

56

53 

51

43 ' 42

41 j 42 

48 49

63 

56

69

58

73 

60

73 

66

82 

70

58 

54

69

60

75 

63

 

63

82 

68

40

51

57 

52

70 

58

75 

62

78 

63

83

70

1 1

64 

56

52 

51

41

50

54 

50

70 

55

74 

60

79 

65

82 

69

77

755

53 

51

41

53

58 

49

71 

56

75 

59

76 

66

82 

68

JL=:.~-U1-

13

62

55

52 

51

41

54

61

49

70 

56

79 

61

76 

65

14 15

57 

53

52

50

42

53

64 

52

66

53

81 

65

76 

65

57 

52

51 

49

40 

38

44

49

66

55

62

54

80 

67

78 

64

84 

70

Day

16

56 

50

52

50

38 

37

42

51

68 

57

68 

53

79

70

78 

63

84 

71

17 18 19

58 

52

53 

51

38

36

40

48

65 

56

70 

54

78 

69

80 

67

56 

53

52

50

38 

36

39

51

61 

52

72

57

65

82 

67

84 

71

58 

52

50 

48

38 

36

38

52

60 

49

59

65

82 

67

82 

69

20

58 

52

50 

48

38 

36

38

51

58 

51

59

60

81

65

79 

68

__ j^ __ c- L __ __
KLAMATH RIVER BASIN Continued 

11-5178.2. KLAJJATH RIVER AT KLAMATH RIVER SCHOOL, NEAR HAM

LOCATION. Lat 41°49'37", long 122°58'35", at State Highway 96 bridge, 0.9 mile downstream from Klamat

approximately 5.5 miles northeast of Hamburg, Siskiyou County.

RECORDS AVAILABLE. Chemical analyses: December 1958 to September 1966 (discontinued). 

REMARKS. No discharge records available.

Chemical analyses, in partspper million, water year October 1965 

Date 

of 

collection

Sept. 12.........

Mean 

discharge 

(cfs)

Silica 

(S102)

19 

26

Iron

(Fe)

Calcium 

(Ca)

18 

15

Magnesium 

(Mg)

8.0 

9.8

Sodium

(Na)

26 

18 

17 

18 

17

22 

17 

18 

28 

28 

26

Potassium 

(K)

2.3 

3.3

Blcarbonate 

(HCO,)

101 

98 

89 

109 

114

119 

108 

116 

144 

143 

111

Carbonate 

(CO,)

4 

0 

0 

0 

0

0 

2 

0 

3 

0 

0

Sulfate 

(SO,)

18 

31

Chloride 

(CD

6.3 

4.5 

4.4 

5.4 

6.4

5.5 

4.9 

4.4 

5.9 

6.0 

7.0

Fluorlde 

(F)

Nitrate 

(NO,

3.7 

5.7 

6.7 

5.3 

4.7

3.7 

2.4 

.5 

.7 

1.5 

4.2
KLAMATH RIVER BASIN Continued

11-5195. SCOTT RIVER NEAR FORT JONES, CALIF.

LOCATION. Lat 41°38'28", long 123°00'54", at gaging station 1.7 miles upstream from Snow Creek, and 1

DRAINAGE AREA. 653 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1958 to September 1966.

Chemical analyses parts per million, water year October 1965 

Date 

of 

collection

Nov. 1...... .....

Feb. 7 ...........

Mar. 9. ..........

May 2 ............

Mean 

discharge 

(cfs)

74 

76 

214 

308 

454 

724

1790 

1000 

584 

119 

49 

45

Silica 

(S10,)

13 

19

Iron 

(Fe)

Calcium 

(Ca)

12 

28

Magnesium 

(Mg)

6.8 

15

Sodium

(Na)

5.1 

5.3 

4.0 

3.7 

4.7 

3.1

2.2 

2.5 

4.6 

5.2 

5.3 

5.4

Potassium 

(K)

0.7

.7

Bicarbonate 

(HCO,)

163 

168 

141 

121 

129 

110

73 

71 

98 

153 

161 

159

Carbonate 

(CO,)

10 

6 

3 

2 

0 

1

1 

0 

0 

5 

0 

0

Sulfate 

(S0t)

3.0 

7.0

Chloride 

(CD

3.4 

3.6 

2.4 

2.6 

1.9 

.6

.6 

.6 

3.4 

3.4 

4.5 

5.8

Fluoride

(P)

Nitrate 

(NO

0.7 

2.4

A Calculated from determined constituents
KLAMATH RIVER BASIN Continued

11-5205. KLAMATH RIVER NEAR SEIAD VALLEY, CAL

LOCATION. Lat 41°51'20", long 123°13'50", at gaging station 0.4 mile upstream from Bittenbender Cre

west of Seiad Valley, Siskiyou County.

DRAINAGE AREA. 6,980 square miles, approximately, not including Lost River or Lower Klamath Lake ba

RECORDS AVAILABLE. Chemical analyses: December 1958 to September 1966 (discontinued).

Water temperatures: October 1963 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 77°F July 29, Aug. 17. 

EXTREMES, 1963-66. Water temperatures: Maximum, 78°F July 26, 1964; minimum (1963-64), 37°F Feb. 7

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 5, 1965. ....

Nov. 2.. .........

Jan. 4, 1966. ....

Feb. 8..... ......

Sept. 12..... ....

Mean 

discharge

(cfs)

2770 

3510 

5040 

5180 

3210

4430 

6170 

3540 

2160 

1150 

1400

Silica 

(S102)

16 

26

Iron 

(Fe)

Calcium 

(Ca)

15 

15

Magnesium 

(Mg)

7.9 

10

Sodium

(Na)

26 

18 

16 

14 

13

13 

8.7 

9.8 

15 

21 

24

Potassium 

(K)

1.3 

3.0

Bicarbonate 

(HCOJ

117 

100 

95 

100 

117

110 

89 

94 

123 

132 

107

Carbonate

(cog

0 

0 

0 

0 

0

0

1

0 

0 

4 

0

Sulfate 

(S0«)

10 

29

Chloride 

(CD

6.7 

4.0 

4.1 

5.0 

5.1

3.1 

2.9 

2.4 

3.9 

5.4 

6.0

Fluoride 

(F)

N

tra

(N

3

5

6

3

3

2

1

1

1

3
KLAMATH RIVER

11-5205. KLAMATH RIVER NEAR 

Temperature (°F) of water, watei

BASIN Continued

SEIAD VALLEY, CALIF

 year October 1965 

Month

October

Minimum .... 

November

Minimum .... 

December 

Maximum . . . . 

Minimum .... 

January 

Maximum ....

February

Minimum .... 

March 

Maximum .... 

Minimum .... 

April

Minimum .... 

May 

Maximum .... 

Minimum .... 

June

Minimum .... 

July 

Maximum ....

AuRust 1

Minimum .... 

September 

Maximum .... 

Minimum ....

1

53 

52

43 

42

49 

48

56 

51

57 

53

64 

59

66

66

61

2

54 

52

40 

40

42

41

49

57 

52

55 

53

62

53

69

69 

62

3 4

54 56 

54 54

40 

40

42 

39

48

56 

53

56 

51

65 

56

69

70 

64

40 

40

42

40

48

57 

53

60 

53

69 

60

69

71 

64

5 6

 

789

54 54 

53 53

40

40

45 

42

49

56

54

61 

57

72 

64

66

70 

63

54 

54

44 

44

54 

54

44 

43

54 

54

43 

42

10

54 

52

42 

42

»

40 

40

45 

44

49

55 

53

61 

59

72

68

69 

63

40 

40

45 

44

49

56 

52

61 

58

70

68

66 

63

40 

40

46 

45

49 

49

57 

54

64 

60

68

68

66 

62

40 

40

46

46

49 

48

58 

55

66 

62

68

68

67 

63

40 

40

47 

46

48 

47

56 

54

64 

62

69

69

66

62

1 1 12

52

52

42 

40

59 

58

52 

52

40 

38

40 

40

46

47 

47

56 

52

64 

59

69

68

65 

59

40 

40

47

47 

47

57 

52

65 

59

69

67

63

57

13

60 

57

52

52

38 

36

40 

39

49

50 

47

57

53

68 

62

70 

63

67

64 

60

 

14

58 

56

51

36 

36

39 

38

48

51 

49

55 

52

70 

65

69 

62

63

63 

60

15

Day

16

56 56 

54 53

51 51

36 36 

34 35

39 

38

47

53 

51

53 

51

71 

66

69 

62

69

64 

59

39 

38

45

53 

52

55

50

70 

65

69 

61

70

66 

61

17 

 

57 

55

36 

36

41 

38

43

53 

51

58 

52

68 

64

70 

61

70

65 

61

18 Jl9

57

36

35

41 

40

46

51 

49

61 

55

70 

64

72 

63

70

64 

60

58 

56

36 

36

42

41

47

49 

48

62 

56

67 

64

72

64

75 

69

64 

59

20

57 

54

37 

35

"

43 

41

47

49 

48

63

57

65 

61

72 

63

73 

67

63 

61
QUALITY OF SURFACE WATERS, 1966

o

o

M 

01

Ul1

 a

S o

1 s

1 a 

K &0

5 M

B U

M *

S »

CO g

s ? CM ^

- f

10

00 

CM 

ri is

B S -H

rH Pi *H d)

: a cd o a 3

*J| 0) C7

- h m

CM VI H

o o,m

"* a) ! ui-i 

^ a K

§ 1

1

o 

S

 H

 a S 

» S

 a S

> &

° $

»fi

s" »

OK jT

LI pT o

51 £

o cd ^*

0 » 0)

ss S

33 S

cd cd §

0) a) M

""

Hi a>

i i

%l

< I-l

5 ffi

I) H

Q

.

LJ*

u

n

0

0- 

00

CM 

-O

S

S

S

Jl

cs

o

00

!^

-

-

CO

-

'

"

cs

 ~

1

.* 0. o.. 0, ,0 0. .0 ^ C-0

SS ! ! Sm 33 ! ! SS ! ! ££ ! j ?£ ?S ! !

E£ 33 mS 33 ! ! 31 S3 ££ SS PS PS SS

r- m m^H cor- or- m- o. » o^ co * co <xj csj j) <f o * co

^CM mrx, o* 00 CM o O.T, om ^m ^o -m » csj r- o

SS 33 mm 3m 33 55 J\S SS SS P2 tS f^S

SS 33 SS 33 IS 33 S5 SS SS PS SS ^S

SS 33 *S 3S 13 53 S3 ££ 2S PS ?2 ?S

ocsj coco *» o-h- CM ~ ^m -o ^o m co CM -o co * *>~

om oco mm co -o CM- o csj o <f r- CM m co - T, cxj co ^o

r-m oco mm r- -o m CM in m com co CM CM co o* -oco o CM

££ 55 Sm -^ 35 5 m 32 %Z S3 ?S SS SS

££ S? SS Sm 3S S3 35 SS SS SS £S SS

SS S5 SS £S SS 3S; S3 S5 SS S3 £S its

mm m* mm <f m mm »» m * m * ^>o ^>^> co ^ com

mm mm mm <f -r mm <f » m * m J .0 J) -c ~o co ^ r- .0

mm m* mm »* mm <r * m* m* ^>^> .00 r- * r-m

o-o -0 »m CM- -o mm mm mco om l^Ti c^i i^1

^m mm » » » » *» * * * * m * om 00 r- * coo

- - - - 

Sm S!?! 35 33 33 53 S3 m3 SS SS r^S !2S

2m mm 33 33 33 33 S3 m3 mm S S SS S2

<Mr- »CM mm m mm mo- om CMCO mm COCM mco Om

Sm Sm 33 ?S 3? Sm S3 mj SS SS PS °S

^m mm *» mm » » » m ** m * m* ^m r- -o co *

om m* »«. mm * m mm *» m <f mm ^m r~ * co *

3 | - 3 1 u. 1 G II || | G || || || l| I!"!!

v.EE-QEE_S£i EE>- E 6 E £ E £ ee e ^ EE EE-aEE

-^^5S^E£xc^x55xc.r:yc BE ^5 Be Bc^><cS><c

2ss|ss|ss|ss| S s|ss|ss|ss|ss|aa|as|sa
PACIFIC SLOPE BASINS IN CALIFORNIA

rH SCO W 3 tO 

1" o I J*> tO

a

o.

I^S2lo

S 0l8a if«

 a , £. e °

*l*|a!

38 iii*

I s 4s'*;g «a 3|I S 1

s Iss- 

« i g * ^ a

 a rt «, i

8 3 »< « « ^ o> £ * ^ x 5 3 fi agfi

S T) M S

a l !*|

.0 off

*JI

°« 3~f« E x-"

 3

II 3 

o

§-5

«H O

?S2-

i i "* 35flS

s§|2|

ft J-3-^-

g

 ^?

i i S "5> * <u 3 g

S

c; ~* *5 

c B^'

4 |"3

r\ -H O t> 0 ^^

§£ 

£&

Id* 

SS

s 8 -SI

0) Zi ^ ss 

1

<* 00 rtOCO

00 l> 00 00 00

in in in oo H

S5SS25

ot-tomqi

rH

O O O O O

00 00 O rH H 

00 (D to to l^

O rH O O O

O

m t- o o co

tri CO CO £M N

CO O O O N

§

N O C^ 00 

O> t^ c^ 00 

rH

rH 00

M m rH tO tNrH rH

1O . .(£> .

Ol . .01 . 

H -H 

rH -O ^ 

rH 00 SO rH rH

+> > O 0 4D 

SO ID 3 0 

S5Q ^ fa

O CT C^ CT U7 N

00 00 > 00 0000

l^ CO M SO C^ C^

in Tt< N Tt< o o>

 * * CO^ to rH

rH

rH M O O O O

§

00 M 00 M 00 in in in oo fJ>

rH 

rH

0

00 

t000000

to

0

oiooimoo

H rH rH M^ to

O

O O O O CO O

M 0000 O O O 

00 tO tO 00 rH CO 

rH rH

00o'

MM 01 CO

tO tO ^ t- N ^ 

rH N

O

to'

rH 

rH

M

rH

in 10 in oo in

N rH H H H H 

rH

h h Ik, C rH t>0

£33333
KLAMATH RIVER BASIN Continued

11-5230. KLAMATH RIVER AT ORLEANS, CALIF. Co

Temperature (°F) of water, water year October 1965 t

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum ....

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum ....

May 

Maximum .... 

Minimum .... 

June 

Maximum ....

July 1 """1"" "" 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

56 

53

46

45

37 

36

43 

42

43 

39

54 

49

56 

52

77 

72

67 

62

2

54 

52

47 

46

37 

37

43

41

40 

38

55 

50

53 

51

78 

73

68 

63

3

55 

54

47 

46

40 

37

41

42 

39

54 

51

56 

50

78 

73

70 

64

4

57 

55

47 

46

42 

40

41

40 

39

53 

52

58 

52

78 

73

70 

65

5

56

53

49 

47

43

42

43

42 

40

53

50

58 

55

78 

74

70 

66

6

54 

53

50 

49

43 

43

42

43 

42

52

50

54 

50

58 

56

78 

73

69 

65

7 [A

53

53

49 

49

44

43

41

45 

43

52 

49

54

50

60 

56

78 

73

66 

64

55 

53

49

47

44 

43

41

44 

44

53 

49

56 

52

64 

58

76

72

65 

62

9

 

56 

54

47 

46

43 

42

41

46 

44

52 

49

56 

52

65

60

78

70

66 

61

10

54 

53

47 

45

41

47 

44

50 

48

55 

52

64 

61

75 

70

66 

63

n

52 

52

45 

44

[I 2 13

52

51

45 

43

40

46 

44

48 

46

54 

51

63 

58

74 

70

64 

63

39

47 

43

46

46

56 

51

65 

59

70 

65

74 

70

63 

58

52 

51

43 

41

37

48

46

49 

46

56 

52

67 

61

70 

66

73 

70

61 

56

14

51 

51

41 

37

15

Day 

16

52

51

38 

36

36

48 

46

51 

47

54 

51

70 

64

70 

66

74 

69

62

57

36

47 

44

53 

48

52

50

70 

65

70 

65

75 

70

63 

59

51 

51

37 

35

36

44 

42

53

51

55 

49

68

65

75

70

64

60

17

51 

50

36

35

37

42

40

55 

51

57 

51

71 

64

75 

71

63 

61

18 ' 19

__ t __.

50

36 

34

38

45 

42

53 

50

59 

53

72 

66

76 

71

63

60

59

57

50

36 

35

41

46 

44

52 

48

60 

56

72

67

75 

71

63

58

20

59 

56

50

36

35

42

46 

44

51 

48

60 

56

74 

68

74 

71

62 

60
KLAMATH RIVER BASIN Continued 

11-5255. TRINITY RIVER AT LEWISTON, CALIF.

LOCATION (revised). Lat 40°43'10", long 122°48'09", at gaging station 400 feet upstream from Deadwoo

County.

DRAINAGE AREA. 728 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1953 to September 1966.

Water temperatures: September 1951 to September 1955, October 1957 to September 1958, July 1959 to 

EXTREMES, 1965-66. Water temperatures: Maximum, 52°F on several days during May to July; minimum, 4

EXTREMES, 1951-55, 1957-58, 1959-66. Water temperatures: Maximum (1951-55, 1957-58, 1959-63, 1964-6

several days in January 1952.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 11, 1965. . . .

Jan. 10, 1966.... 

Feb. 14...... ....

Sept. 12.........

Mean 

discharge

(eta)

208 

242 

210 

168 

164 

159

161 

698 

159 

161 

153 

148

Silica 

(SiO,)

12 

16

Iron 

(Fe)

Calcium 

(Ca)

7.2 

5.1

Magnesium 

(Mg)

6.0 

7.4

Sodium

(Na)

2.4 

1.9 

3.4 

2.3 

3.2 

3.1

3.1 

2.9 

3.1 

2.2 

2.6 

2.6

Potassium 

(K)

0.7 

.5

Blcarbonate 

(HCO,)

51 

50 

51 

48 

57 

56

54 

52 

52 

53 

53 

52

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(SO,)

3.0 

1.0

Chloride 

(Cl)

1.1 

.9 

.3 

1.4 

1.0 

1.6

.8 

1.4 

1.9 

1.2 

1.5 

1.2

Fluoride 

(F)

Nitrat

(NO

0.

1.

.

.

.

.

.

1.

.

.

1.
KLAMATH RIVER BASIN Continued

11-5255. TRINITY RIVER AT LEWISTON, CALIF. Con

Temperature (°F) of water, water year October 1965 to 

Month

October

Minimum .... 

November 

Maximum ....

December 

Maximum .... 

Minimum .... 

January

Minimum .... 

February

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May

Minimum .... 

June

Minimum .... 

July

Minimum .... 

August 

Maximum ....

September 

Maximum ....

Day

1

47 

47

48 

48

44

41

42 

42

49 

48

48

51 

49

51 

48

51 

48

50

2

47

47

48 

48

44

41

42 

42

49 

48

48

50 

49

51 

48

51 

48

50

3

47 

47

48 

48

41

42

50 

48

47

50 

48

51 

48

51 

48

50

4

47 

46

48 

47

40

42

50 

47

48

50 

48

51 

48

51 

48

49

5

47 

46

47 

47

40

42

50 

47

49

48

51 

48

51 

48

50

6

47 

46

47 

47

40

42

50 

48

50

48

52 

48

51 

48

50

1

47 

46

47 

47

41

42

51 

48

50

48

52 

48

51 

48

49

8

47

47

47 

47

41

42

50 

48

50

50

50 

48

51 

48

51

9

47 

47

47 

46

:i

42

48 

48

48

50

50 

48

51 

48

51

10

47

47

47 

46

41

42

48 

47

49

51

51 

48

51 

48

51

11

47 

47

47 

46

41

42

47 

46

49

51

51 

48

51

50

12

47 

47

46 

46

41

42

48 

46

49

51

51 

48

51

51

13

48

47

46 

46

41

42

48 

46

50

51

51 

48

51

50

14

47 

47

46 

46

42

42

49 

46

49

52

51 

48

51

50

15

48

47

46 

46

42 

42

42

49 

46

50

50

51 

48

51

50

16

48

47

46 

46

42 

42

42

50 

46

50

51

51 

48

50

50

17

47

47

46 

45

42

42

42

49 

46

50

51

51 

48

49

50

18

47 

47

45 

45

42 

42

42

49 

46

50 

50

52

51 

48

51

50

19

47 

47

45 

45

42 

42

42

48 

46

50 

50

52

52 

48

51 

48

51

20

47 

47

45 

45

42 

42

43

45

47 

46

50 

50

50

52 

48

51 

48

50
KLAMATH RIVER BASIN Continued

11-5270. TRINITY RIVER NEAR BURNT RANCH, CALI

LOCATION. Lat 40°47'20", long 123°26'20", at gaging station 500 feet upstream from Cedar Flat Cre

2.3 miles southeast of Burnt Ranch, Trinity County. 

DRAINAGE AREA. 1,439 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1958 to September 1966 (discontinued). 

Water temperatures: October 1961 to September 1964.

Chemical analyses, in parts per million, water year October 196

k, 

Date 

of 

collection

Oct. 11, 1965. . . .

Dec . 6 ...........

Jan. 10, 1966....

Sept. 12... ......

Mean 

discharge 

(eta)

298 

670 

1400 

2740 

1300

2030 

2280 

1950 

984 

375 

223

Silica 

(S102)

9.7

11

Iron 

(Fe)

Calcium 

(Ca)

10 

17

Magnesium 

(Mg)

4.6 

7.8

Sodium 

(Na)

4.6 

4.0 

3.6 

3.2 

3.7

3.5 

2.5 

3.5 

3.3 

3.5 

5.0

Potassium 

(K)

1.0 

.7

Bicarbonate 

(HCOj)

86 

81 

62 

82 

95

85 

65 

53 

53 

74 

88

Carbonate 

(COJ

0 

0 

0 

0

1

0 

0 

0 

0 

2 

0

Sulfate 

(SO,)

4.0 

5.0

Chloride 

(Cl)

5.3 

4.8 

2.4 

1.9 

2.2

1.7 

.9 

2.6 

2.2 

4.0 

5.8

Fluoride 

(F)

Nitrat

(NO

0.

1.

.

.

.

.

.

1.

.

1.
KLAMATH RIVER BASIN Continued 

11-5285. HAYFORK CREEK NEAR HYAMPOM, CALI

LOCATION. Lat 40°37'35", long 123°26'00", temperature recorder at gaging station 1

northeast of Hyampom, Trinity County. 

DRAINAGE AREA. 378 square miles.

RECORDS AVAILABLE. Water temperatures: December 1960 to September 1966.

EXTREMES, 1965-66. Water temperatures: Maximum, 74°F on several days during August

EXTREMES, 1960-66. Water temperatures: Maximum (1960-61, 1962-66), 83°F July 13, 1

during January 1962.

Temperature (°F) of water, water year October 1965 to 

Month

October

Maximum ....

Minimum ....

November

Maximum ....

Minimum ....

December

Maximum ....

January

Maximum ....

Minimum ....

February

Maximum ....

Minimum ....

March

Maximum .... 

Minimum ....

April

Maximum ....

Minimum ....

May

Maximum ....

Minimum ....

June

Maximum ....

Minimum ....

July

Maximum ....

Minimum ....

August

Maximum ....

Minimum ....

September

Maximum ....

Minimum ....

1

58

56

50

49

42

38

38

41

41

44

42

50

48

55

53

62

60

68

65

74

70

68

65

2

57

56

49

49

42

38

38

41

41

42 

39

50

47

57

54

60

58

65

63

74

70

68

66

3

57

55

50

49

42

39

38

41

41

40

39

50

47

57

56

60

57

66

62

74

71

69

66

4

56

55

52

50

42

39

38

41

41

40

39

50

48

60

57

63

58

69

64

74

70

69

66

5

58

55

52

51

43

41

39

42

41

40

39

51

46

60

58

62

60

70

66

74

70

69

66

6

58

56

51

50

44

43

41

42

42

42

40

50

48

58

56

61

61

70

67

74

70

68

66

7

58

56

50

50

44

43

43

42

40

43

42

51

49

58

56

62

60

70

66

74

70

68

65

8

58

56

50

50

44

43

43

41

40

43

43

51

50

58

57

66

62

69

66

73

70

69

63

9

57

56

50

50

44

43

42

42

41

44

50

49

58

57

67

64

67

66

73

69

69

64

10

57

56

50

50

44

42

42

42

41

45

49

49

60

57

67

65

67

64

74

71

68

64

1 1

56

54

50

50

44

42

42

42

41

45

49

48

59

56

66

63

67

64

74

71

67

62

V

55

54

50

50

44

42

42

42

41

47

48

47

60

56

66

62

69

65

74

71

65

61

13

55

54

50

50

44

42

40

42

40

47

49

48

59

56

69

64

69

66

74

71

63

60

14

 

55

54

50

50

42

41

40

40

39

47

51

49

58

55

71

66

69

62

74

70

63

56

15

54

53

50

50

40

8

41

41

41

39

47

52

51

57

54

71

68

70

66

74

71

63

59

Day

16

53

51

50

50

38

36

41

38

41

40

46

54

53

58

55

70

66

69

66

74

71

64

59

17

52

51

50

50

36

35

39

37

41

40

44

54

54

59

55

69

66

70

66

73

71

64

60

18

52

51

50

50

35

35

38

37

42

41

46

54

52

62

57

70

66

71

67

74

71

64

62

19

53

52

50

48

35

35

38

36

43

42

46

52

50

62

58

69

66

71

68

74

70

65

61

20

53

52

48

48

35

35

37

36

44

43

46

50

49

64

60

68

65

71

67

73

70

62

61
KLAMATH RIVER BASIN Continued 

11-5287. SOUTH FORK TRINITY RIVER BELOW HYAMPOM

LOCATION. Lat 40°39'00", long 123°29'35", temperature recorder at gaging station on 

3.0 miles northeast of Hyampom, Trinity County, and 3.5 miles downstream from Ha

DRAINAGE AREA. 764 square miles.

RECORDS AVAILABLE. Water tenperatures: October 1965 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 82°F Aug. 2, 10, 12, 14, 15.

Temperature (°F) of water, water year October 1965 to 

October

November 

Maximum .... 

Minimum .... 

December

January 

Maximum .... 

Minimum .... 

February

March

April 

Maximum ....

May 

Maximum ....

Minimum .... 

July

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum ....

1

62

51

38 

36

_-

58 

44

58 

48

54

81

60

75 

58

2

68

53

60 

51

40 

38

59 

48

53 

47

54

82 

63

77 

58

3

69

51

60 

56

40 

38

58 

48

60 

47

54

79 

63

77 

59

4

61 

53

64

57

40 

39

-_

60 

42

64

47

56

78

61

^ 

59

5

69 

58

57 

55

43 

40

56 

40

60 

50

59

79 

63

75 

58

6

68 

55

60 

54

45 

43

50

59 

49

57 

54

59

79 

62

74 

57

7

70 

54

56 

55

44 

43

52

59 

49

64

53

58

79 

62

69 

57

8

69 

55

58 

54

45 

43

50

59 

49

68

53

59

77 

61

77 

56

9

68 

55

56 

52

-

43 

41

47

59 

50

11

58

80 

62

75

60

10

67 

55

54 

52

41 

40

47

60 

50

68 

54

69

82 

64

74 

59

67 

54

55 

53

42

41

44

60 

48

67 

53

69

79 

63

70 

59

12

66 

54

54 

53

43 

40

47

60 

48

69 

53

60

82 

64

70 

57

13

67 

54

53 

52

42

40

49

60 

48

72 

55

60

79 

63

71 

55

14

58 

55

52

51

44 

41

53

57 

47

75 

58

59

82 

62

71 

56

15

59 

54

54 

51

45 

41

54

59 

46

75 

60

56

82 

64

73 

56

Day

16

60 

52

55 

52

42 

38

55

59 

46

73 

58

58

80 

64

74 

57

17

62

51

54

51

40 

37

53

62

47

72

56

58

79

65

75 

58

18

59 

54

51 

49

40 

36

51

64

60

73 

58

60

81 

65

72

60

19

64 

56

49 

49

39

35

50

65 

51

73 

58

62

80 

62

74 

60

20

63 

53

50 

49

38 

34

50

66 

52

68

56

60

81 

63

65 

61
KLAMATH RIVER BASIN Continued

11-5290. SOUTH FORK TRINITY RIVER NEAR SALYER

LOCATION. Lat 40°50'30", long 123°34'00", at gaging station 4 miles south of Salye

mouth .

DRAINAGE AREA. 898 square miles. 

RECORDS AVAILABLE. Water temperatures: November 1956 to September 1966.

Sediment records: November 1956 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 81°F Aug. 10; minimum, 36°F Dec. 

Sediment concentrations: Maximum daily, 5,400 ppm Jan. 5; minimum daily, 1 ppm o

Sediment loads: Maximum daily, 394,000 tons Jan. 5; minimum daily, 0.3 ton on se

EXTREMES, 1956-66. Water temperatures: Maximum (1962-66), 81°F Aug. 10, 1966; min

Sediment concentrations: Maximum daily, 20,400 ppm Dec. 23, 1964; minimum daily, 

Sediment loads: Maximum daily, 3,020,000 tons Dec. 22, 1964; minimum daily, 0.2 

REMARKS. Where no maximum or minimum is shown, temperature is once-daily reading.

__________ __ Temperature (°F) of water, water year October 1965 t

Month

October 

Maximum .... 

Minimum .... 

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum .... 

Minimum .... 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June 

Maximum .... 

Minimum .... 

July 

Maximum .... 

Minimum .... 

August 

Maximum .... 

Minimum .... 

September 

Maximum .... 

Minimum ....

1

67 

56

56 

51

43 

43

39 

39

43 

42

42

38

53 

50

59 

51

56 

56

67 

63

80

66

74 

63

2

67 

56

56 

51

45 

43

41 

39

42

41

39 

37

53 

49

60 

53

56 

56

70 

62

80 

68

75 

64

3

6-7 

55

57 

54

43

42

41

43 

42

40 

37

52 

49

61 

55

57 

55

72 

62

80 

68

76 

65

4 , 5 1 6

67 

56

60 

56

46

43 

42

44 

43

39 

37

53 

49

62 

58

58 

56

75 

65

79 

66

76 

65

67 

59

57 

54

47

45 

43

45 

44

40 

38

53 

50

60 

57

58 

57

77 

67

80 

68

76 

65

67 

58

57 

54

7 a67 

58

55 

54

67 

58

56 

55

49

46 

45

45 

43

42 

40

54 

50

62

56

58 

58

76 

68

80 

68

74 

64

49

46 

46

43 

42

43 

42

53 

51

62 

56

58 

57

74 

66

79 

67

70 

64

48

46 

45

42

41

44 

43

54 

51

62

57

60 

58

73 

65

78 

66

72 

62

9 10

67 

58

55 

53

66

59

53

52

47 47

45 43

43| 42

42 ! 43 

40 42

44 

43

52

50

63

57

61 

60

68 

65

79 

66

73 

63

43 

42

52 

49

62

57

62 

61

74 

64

81 

69

'72 

62

Day

11 'l213

65 

56

54 

52

45

64 

56

54 

53

45

45 42 

42 39

42 

40

42 

40

49 

47

61 

56

62 

60

75 

67

80 

68

68 

62

41 

40

43 

40

48 

46

62 

56

63

60

74 

68

80 

69

68 

60

65 

56

53 

53

43

42

41

40 

37

44 

43

50 

46

61 

56

66 

62

74 

67

79 

68

67 

58

14

59 

57

53

52

41

43 

42

40 

36

43 

42

47

58 

54

68 

65

72 

64

80 

67

68 

59

15J16

T

59 

54

53 

52

41 

38

43 

42

40 

38

42 

49

47

59 

53

53 

53

39 

37

42

39

40 

36

49 

46 

46

i

59

54

70 

68

73 

63

80 

68

68 

59

60 

55

71 

69

73 

64

80 

69

17

60 

52

53

53

39

37

40 

38

41 

37

47 

45 

50

58 

56

70 

67

74 

63

79 

69

70 I 70

60_|_62

18

60 

55

53 

51

39 

37

39 

38

44 

39

50 

47 

47

58 

56

72 

67

75 

64

80 

70

70 

63

19

61 

56

51 

50

39 

37

39 

37

43 

41

50 

48 

47

60 

57

72 

68

76 

66

79 

68

71 

63

2

61 

54

50 

50

38 

37

37 

37

45 

43

50 

47 

5

60 

58

68 

65

76 

64

79 

68

67 

74
PACIFIC SLOPE BASINS IN CALIFORNIA

KLAMATH RIVER BASIN Continued 

11-5290. SOUTH FORK TRINITY RIVER NEAR SALYER, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

1..

2..

..

..

 

,.

. .

8t.

9..

10..

lit.

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

* .

OCTOBER

Mean 

discharge 

(cfs)

97

97

97

96

96

97

100

100

99

99

99

99

99

100

117

123

117

115

11*

11*

11*

11*

113

111

110

110

107

106

106

106

108

3280

Suspended sediment

 Mean

tration 

(ppm)

1

--

2

1

__

*

1

1

1

5

*

_

2

2

2

5

2

__

1

1

1

1

Tons

per 

day

0.3

.3

.5

.5

.3

.5

1.1

.3

.3

.3

.3

.3

.3

1.3

1.3

1.0

.6

.6

.6

.6

.6

1.5

.9

.6

.6

.3

.3

.3

.3

.3

.3

17.3

JANUARY

1810

1560

3380

25000

5.. ! 27000

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

2*..

25..

26..

27..

28..

29..

30..

31..

Total

19000

13000

9*00

7700

6300

5200

*300

3*00

3060

2860

2780

2620

2*00

2290

2060

1920

1880

17*0

1510

1390

1250

1210

1150

16*0

2860

2580

16*250

200

160

**8

5280

5*00

3850

*100

2000

1100

950

1*00

750

510

6*0

790

*00

315

360

270

330

330

310

300

275

2*0

200

150

150

681

460

320

-

B 977

B 67*

K *900

356000

39*000

198000

1**000

50800

22900

16200

19700

8710

4680

5290

6100

3000

2230

2330

1670

18*0

1710

1570

1*10

1120

901

675

*90

*66

S 3*20

3550

2230

12615*3

NOVEMBER

Mean 

discharge

(cfs)

108

10*

107

157

15*

1*1

1*7

280

3*9

218

189

372

676

1160

11*0

9**

6*2

1350

2510

1780

1330

908

685

1570

1750

1510

1370

1170

10*0

1020

2*881

Suspended sediment

Mean

tration 

(ppm)

_

1

1

*6

16

8

12

100

75

19

15

160

*88

9*7

363

125

202

95*

669

275

150

95

70

527

320

200

1*0

100

75

65

~

Tons

per 

day

0.3

.3

.3

S 21

6.7

3.0

4.8

76

71

11

7.7

161

S 971

S 2990

S 1150

319

S 352

S 3510

S *600

1320

539

233

129

S 2*30

1510

815

518

316

211

179

22*55.1

FEBRUARY

2370

2190

2120

2750

3*70

36*0

3280

2880

2620

2380

2300

21*0

1980

1850

17*0

1650

1510

1510

1820

2180

2180

2*00

2960

3100

2830

2580

2210

2010

66650

295

310

250

8*9

860

785

460

330

260

215

185

155

150

128

130

315

325

305

255

_ ,

380

305

225

203

250

188

165

--

1890

1830

1*30

S 6710

8060

7710

*070

2570

18*0

1*00

13*0

1070

829

7*9

601

579

1280

1330

1500

1500

1500

2*60

2**0

1880

1550

17*0

1120

895

61873

DECEMBER

Mean 

discharge

(cfs)

876

759

692

765

1020

1*40

1350

1210

1110

932

730

630

590

550

510

*70

*50

*10

380

360

3*0

360

330

*72

557

507

*69

*190

4610

2950

2370

32389

Suspended sediment

Mean TonR

concentration 

(ppm)

60

60

50

96

277

315

325

130

100

65

52

*9

*5

*9

38

35

*2

--

17

17

18

18

18

42

28

20

20

81*

608

360

280

per 

day

1*2

123

93

S 201

S 76*

1220

1180

*25

300

16*

102

83

72

73

52

**

51

31

17

17

17

B 17

B 16

K 59

B 42

B 27

B 25

K. 13000

K. 7900

B 2870

B 1790

30917

MARCH

2080

2030

1920

1810

1810

2110

3110

*960

7120

9020

62*0

5960

5*00

5500

5360

5060

4360

4000

4100

3780

36*0

3370

3200

3110

3260

3620

*050

4360

*390

46*0

*700

128070

175 983

180 987

1*5 752

155 757

155

350

668

1350

1590

1*90

960

760

710

660

580

530

*20

360

380

370

3*5

270

220

220

290

380

423

*20

385

360

372

-

757

S 2090

S 5520

S 19000

30600

36300

16200

12200

10*00

9800

8390

72*0

*9*0

3890

4210

3780

3390

2*60

1900

1850

2550

3710

4630

*9*0

4560

*510

*720

218016

S Computed by subdividing day.

B Computed from estimated-concentration graph.

K Computed from estimated-concentration 

graph and subdividing day.
QUALITY OF SURFACE WATERS, 1966

KLAMATH RIVER BASIN Continued

11-5290. SOUTH FORK TRINITY RIVER NEAR SALYER, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2t,

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

1*..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

26..

29..

30..

31..

Total

APRIL

Mean 

discharge

(cfs)

4920

4860

4*60

4280

4160

4050

4000

3850

3740

3920

4280

4280

3830

3440

3240

3230

3200

2690

2700

2400

2200

2050

1980

1920

I860

1820

1730

1600

1550

1470

93730

Suspended sediment

Mean 

concentration

(ppm)

455

410

308

300

"

295

295

312

278

630

765

485

398

272

240

241

255

195

167

140

125

120

118

105

97

_

88

91

90

80

-

Tons 

per 

day

6040

5380

3710

3*70

3*00

3230

3190

32*0

2810

6670

8B40

5600

4120

2530

2100

2100

2200

1420

1220

907

743

664

631

5*4

492

450

411

393

377

318

77200

JULY

255

255

250

243

230

227

222

214

220

235

229

265

239

219

215

206

196

185

178

174

169

166

158

154

150

147

1*4

144

141

138

135

6103

4

5

4

3

2

4

10

6

10

8

7

11

3

4

4

2.8

2.8

3.4

3.3

2.5

1.8

1.8

1.2

1.2

1.9

2.5

7.2

13

5.9

4.6

3.3

4.2

5.0

4.3

3.8

3.7

3.1

3.8

4.6

2.8

1.2

1.2

1.6

1.5

1.5

1.5

103.0

MAY

Mean 

discharge

(cfs)

1*50

1*20

1*30

1*20

1400

1320

1270

1220

1210

1180

1110

1050

1040

990

976

971

942

870

846

8*9

813

800

771

768

755

748

721

717

724

730

693

31204

Suspended sediment

Mean 

concentration

(ppm)

6*

 

58

74

76

7*

58

65

63

46

42

38

32

50

37

31

36

35

28

28

33

24

22

22

20

18

17

16

21

34

17

-

Tons 

per 

day

251

220

22*

28*

287

264

199

21*

206

1*7

126

108

90

134

98

81

92

82

64

64

72

52

46

46

41

36

33

31

41

67

32

3732

AUGUST

132

129

126

123

120

lie

116

114

114

110

110

108

106

104

104

100

99

97

97

96

95

94

94

93

93

93

93

93

93

98

105

3267

4

3

3

2

 

3

3

3

4

*

 

 

3

__

2

- 

--

__

3

4

~

4

~

1.4

1.4

1.0

1.0

1.0

.6

.6

.6

.9

.9

.9

.9

.9

.8

1.1

1.1

1.1

1.0

.8

.8

.8

.5

.5

.5

.5

.8

.8

.8

1.0

1.1

1.1

27.2

JUNE

Mean 

discharge

(cfs)

661

640

612

555

539

549

580

553

523

490

465

444

426

408

394

388

376

358

352

334

328

321

316

315

298

291

284

265

260

255

12580

Suspended sediment

Mean 

concentration

(ppm)

1*

16

13

12

__

33

__

22

10

9

__

37

_

7

 

5

11

__

3

__

3

_

4

5

-

Tons 

per 

day

25

28

21

18

17

22

52

42

31

21

13

11

10

9.9

39

10

7.1

5.8

4.8

6»3

9.7

5.2

2.6

2.6

2.4

3.1

3.1

2.9

3.5

3.*

432>4

SEPTEMBER

106

10*

98

97

93

91

88

88

88

88

88

91

9*

94

9*

9*

93

108

120

120

116

108

100

99

97

95

95

95

94

93

2929

_

4

6

4

5

4

__

__

__

1*

~

7

6

*

_

4

__

3

2

__

2

__

.1

 1

.1

 6

.3

 0

 0

.2

 2

.0

.2

.7

.5

.6

.5

1.8

1.8

117

1.6

1.3

1.3

1.2

 8

.8

.8

.5

.5

.5

.5

.5

38.7

Total discharge for year (cf s-days) .................................................... 569333

Total load for year (tons) ............................................................. 1676354.7
KLAMATH RIVER BASIN Continued 

11-5290. SOOTH FORK TRINITY RIVER NEAR SALYER, CALIF. 

Periodic determinations of suspended-sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distill

Date of collection

Jan. 4, 1966......

Jan. 14. ..........

Mar. 30. ..........

Time 

(24 hour)

1305 

1030 

1150 

1440 

0925

Water 

temperature

(°F)

45 

45 

43 

49

Sampling 

point

Discharge

(cfs)

25000 

9430 

3020 

2240 

4550

Sediment 

concentration 

(ppm)

4500 

3310 

621 

313 

618

Sediment 

discharge 

(tons per day)

303800 

84280 

5060 

18930 

7590

Perc

0.002

11

0.004

25 

18

0.0

2
KLAMATH RIVER BASIN Continued 

11-5300. TRINITY RIVER NEAR HOOPA, CALIF.

LOCATION. Lat 41°03'00", long 123°40'15", at gaging station in Hoopa Indian Reservation, on left ba

Supply Creek.

DRAINAGE AREA. 2,865 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: November 1956 to September 1966.

Sediment records: November 1956 to September 1966. 

EXTREMES, 1965-66. Water temperatures: Maximum, 78°F Aug. 10; minimum, 35°F Dec. 21.

Sediment concentrations: Maximum daily, 10,100 ppm Jan. 4; minimum daily, 2 ppm on several days.

Sediment loads: Maximum daily, 840,000 tons Jan. 4; minimum daily, 2.5 tons Oct. 1. 

EXTREMES, 1956-66. Water temperatures (1963-66): Maximum, 80°F July 16, 1965; minimum (1964-66), 3

Sediment concentrations: Maximum daily, 20,000 ppm Dec. 23, 1964; minimum daily, 1 ppm on many da

Sediment loads: Maximum daily, 8,900,000 tons Dec. 23, 1964; minimum daily, (revised) 1.0 ton on 

REMARKS. Measurement of suspended sediment made at bridge on State Highway 96, 1.0 mile downstream 

sampling point and gaging station except during period of heavy runoff.

Chemical analyses, in parts per million, water year October 19

Date 

of 

collection

Oct. 11, 1965....

Dec. 6. ..........

Jan. 10, 1966....

Mar. 25. .........

May 19.. .........

Sept. 12. ........

Mean 

discharge

(cfs)

530 

994 

3510 

15800 

4330 

7900

7250 

3850 

1950 

820 

426 

418

Silica 

(SiO,)

12 

13

Iron 

(Fe)

Calcium 

(Ca)

15 

29

Magnesium 

(Mg)

6.4 

9.9

Sodium 

(Na)

.9 

.7 

.5 

.1 

.5 

3.1

2.5 

2.7 

4.1 

3.4 

4.6 

4.8

Potassium 

(K)

0.6 

.9

Bicarbonate 

(HCO,)

127 

115 

92 

88 

99 

91

74 

73 

85 

110 

123 

126

Carbonate

(ccg

6 

2 

0 

0 

2 

0

0 

0 

0 

2 

0 

0

Sulfate 

(S0«)

10 

15

Chloride 

(Cl)

4.9 

5.2 

2.7 

1.4 

1.4 

1.6

.6 

1.8 

2.3 

3.2 

4.0 

4.6

Fluoride 

(F)

Ni

tra

(N

0

1

1

A Calculated from determined constituents.
PACIFIC SLOPE BASINS IN CALIFORNIA

is >

d %

8 8

M *

US

 J- wf O -O [ It

October .Novembe December

§2a - i.« **.* H§
QUALITY OF SURFACE WATERS, 1966

KLAMATH RIVER BASIN Continued 

11-5300. TRINITY RIVER NEAR HOOPA, CALIF. Continued

Suspended sediment, water year October 1965 to September 1966 

(Where no concentrations are reported, loads are estimated)

Day

! 

2..

3..

4..

5..

6..

7.4

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

OCTOBER

Mean

discharge

(cfs)

458

482

506

506

522

547

548

546

546

530

530

530

530

558

67*

668

617

602

602

586

578

583

583

578

572

570

570

566

554

560

562

17364

Suspended sediment

Mean

concentration 

(ppm)

2

23

57

11

Tons

per

day

2.5

9.1

27

31

47

84

16

 1 2.

 ' 2. .;

_!

77

__

8

16

53

11

39

25

;;

2.

2.

2.

11

38

140

43

13

13

26

52

83

74

58

53

60

57

38

29

36

45

55

1155.1

JANUARY

3700

3370

8220

32200

40500

37700

29300

24400

20600

15800

12000

9320

7540

6610

6210

6300

6230

5780

5290

4900

4550

4390

4050

3770

3580

3420

3300

3170

4380

7980

6710

335270

900 8990

1270 11600

2840 S 74400

10100 S 840000

5740

4920

2920

2490

2010

2320

2260

2000

2500

2580

2250

2200

1300

1750

1250

870

1040

1120

640

490

590

770

1900

2000

1300

--

S 641000

S 503000

231000

164000

112000

99000

73200

49800

50900

46000

37700

37400

35000

25000

18600

23200

15400

10300

11400

11400

6190

4520

5260

6590

S 24800

43100

23600

3244350

NOVEMBER

Mean

discharge

(cfs)

562

558

585

741

830

749

736

994

1210

1000

986

1530

2180

3590

3430

2660

2010

3080

5470

3840

2820

2260

1990

3050

3690

3320

2870

2520

2260

2120

~

63641

Suspended sediment

Mean

concentration

(ppm)

40

35

58

__

69

114

119

104

390

610

950

610

385

230

Tons

per 

day

61

62

55

92

130

120

137

260

372

321

277

1610

DECEMBER

Mean

discharge

(cfs)

2000

1940

1920

2160

3000

3510

3360

3020

2690

2370

2130

I960

3590 ' 1840

9210 1730

5650

2770

1250

412 IS 3900

1330

510

300

270

255

770

1190

700

445

320

300

240

-

S 19700

5290

2280

1650

1370

S 6990

11900

6270

3450

2180

1830

1370

~

94147

FEBRUARY

5900

5380

4910

6460

9320

1 9780

8620

7520

6640

1450 23100

1550 22500

1640

1540

1450

1390

1360

1300

1290

1290

1260

1510

1810

1640

1550

5170

8060

Suspended sediment

i

Mean

concentration 

(ppm)

280

210

2?0

330

1110

930

840

600

370

295

265

--

260

295

245

145

180

240

145

230

180

517

715

280

180

2680

2000

5470 1010

4660 1300

76020

Tons

per

day

1510

1100

1140

1920

S 9200

8810

7620

4890

2690

1890

1520

1300

1100

1100

1150

1230

959

544

661

842

505

801

612

S 2280

3490

1240

753

S 51900

S 46000

14900

16400

190057

MARCH

5020 13000

4990

1540 20400 4620 1100

13000

13700

2850 S 52800 4360 1090 \ 12800

5110 129000 4380

3850 102000

2400 55900

2050

1980

6100 1900

I

5490

5040

4630

1 4330

4130

3920

3810

3780

4360

5040

4880

4950

5850

6170

6120

5890

5400

5090

159510

1720

1490

1640

950

1000

850

41600

35500

31300

25500

20300

20500

11100

11200

9000

930 9570

860

860

1440

1950

1850

1650

1600

1300

1150

1070

930

"

8780

10100

19600

25700

24700

26100

26700

21500

18300

15600

12800

831150

5220

7360

10600

15900

19400

17400

1090 12900

1990 28000

3220 64000

4540 130000

4370

4050

3650

14700 2260

14700

15300

14500

13400

11100

9730

9970

2520

2190

188000

212000

171000

89700

100000

90500

2430 95100

2010

1740

1880

1910

9200 1300

8640

7960

7620

7460

72700

52100

49400

51400

32300

28000

1400 ' 30100

1710 35200

1700 34200

7900 ' 1450 30900

8820 1 1560 1 37100

10100 1950 53200

11100

12000

12800

13100

319350

1350 40500

1300 42100

 1590 55000

1400

-

49500

1927400

S Computed by subdividing day.
PACIFIC SLOPE BASINS IN CALIFORNIA

KLAMATH RIVER BASIN Continued

11-5300. TRINITY RIVER NEAR HOOPA, CALIF. Continued 

Suspended sediment, water year October 1965 to September 1966 Continued

Day

1..

2..

3..

4. .

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

1..

2..

3..

4..

5..

6..

7..

8..

9..

10..

11..

12..

13..

14..

15..

16..

17..

18..

19..

20..

21..

22..

23..

24..

25..

26..

27..

28..

29..

30..

31..

Total

APRIL

Mean

discharge

(cfs)

13800

13800

12400

11400

11000

10800

10500

10200

9740

10200

10900

10400

8840

7670

7250

7900

8370

7640

6620

5970

5580

5340

5280

5390

5540

5540

5050

4590

4390

4230

246330

Suspended sediment

Mean

concentration 

(ppm)

1620

1480

1490

1520

~

1260

940

850

960

1120

1450

1500

980

800

1090

1390

Tons

per

day

60400

55100

49900

46800

42000

36700

26600

23400

25200

30800

42700

42100

23400

16600

21300

29600

1280 28900

830 17100

 , 14000

960

900

850

700

590

580

_

620

590

650

650

15500

13600

12300

9980

8590

8680

9300

8450

7310

7700

7420

741430

JULY

1160

1160

1120

1060

1010

1010

996

976

957

1010

937

943

929

885

35

_

25

20

110

94

91

86

82

82

81

66

65

55

51

51

50

48

906 20 49

875

843

820

799

786

763

739

720

702

686

670

668

650

646

634

662

26722

 ! 47

46

20 44

43

20 42

30

24

_

24

~

--

47

60

60

53

44

34

29

42

42

29

39

1762

MAY

Mean

discharge

(cfs)

4180

4310

4550

4930

5540

5010

4350

4160

4210

4580

5040

4690

4520

4320

4120

3990

3920

3800

3850

3890

3880

3680

3400

3330

3380

3410

3260

3130

3020

2930

2810

124190

803

689

608

587

575

570

551

528

520

522

500

80

66

42

26

18

02

10

10

386

378

370

363

356

356

370

378

378

370

450

562

14624

Suspended sediment

Mean

tration 

(ppm)

650

825

795

935

1190

682

575

610

770

540

320

340

400

380

420

450

410

470

540

590

440

390

440

410

380

290

230

230

AUGUST

27

20

16

__

11

8

_

4

8

__

9

22

_

7

19

7

17

-

Tons

per

day

7340

9600

9770

12400

17800

9230

6750

6850

7000

9520

7350

4050

4150

4670

4230

4520

4760

4400

4260

4940

5660

5860

5200

3960

3560

4050

3610

3210

2360

1820

1750

184630

59

48

33

27

25

23

19

16

13

11

9 4

5 2

6 3

7 2

9 2

11

9.8

14

24

21

9.2

7.0

12

18

13

7.0

6.1

9.2

13

21

26

532.6

JUNE

Suspended sediment Mean 1 ' T

dis- Mea" | Tons

charge

(cfs)

2420

concentration 

(ppm)

_

2150

2050

1930

1860

1890

2030

1980

2010

2050

1970

1850

1800

1890

1950

1950

1810

1670

1630

1570

1460

215

__

per

day

1600

1300

1200

1 100

1100

1100

1200

1100

1100

1200

1100

 . 1000

_

_-

110

_

1360 ! 115

1320

1290 60

1270

1220

1210

1230

1240

1220

51280

_

970

1000

1100

950

780

590

530

466

430

422

360

209

170

160

150

140

130

120

22777

SEPTEMBER

570

562

530

98

74

42

26

26

26

26

26

18

34

17 26

24

20

16

8 10

_

9

__

10

_

11

74

66

66 _

50 9

78

66 19

626

570

538

506

90

74

58

58

58

42

26

~

14604

17

__

22

_-

5

10

11

--

8.4

10

12

12

12

13

12

14

15

15

13

11

20

34

30

26

26

30

25

13

6.2

6.2

12

12

13

--

496.8

Total discharge for year (cf s-days) .................................................... 1448905

Total load for year (tons) ............................................................. 7239887.5
KLAMATH RIVER BASIN Continued 

11-5300. TRINITY RIVER NEAR HOOPA, CALIF. Continue

Periodic determinations of suspended- sediment discharge and particle size, wat

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Nov. 19, 1965.....

Dec. 15... ........

Jan. 31. ..........

Jan . 31 ...........

Feb. 24. ..........

May 31.. ..........

Time 

(24 hour)

1620 

1455 

1120 

1335 

1540

1650 

1230 

1620 

1430 

1545

Water 

temperature

51 

53 

40 

46 

44

44 

44 

47 

53 

59

Sampling 

point

Discharge 

(cfs)

5630 

2690 

1640 

38900 

6570

6570 

6170 

11500 

5560 

2770

Sediment 

concentration 

(ppm)

1350 

239 

41 

5250 

747

1230 

514 

837 

240 

102

Sediment 

discharge 

(tons per day)

20520 

1740 

182 

551400 

13250

21820 

8560 

25990 

3600 

763

Per

0.002

14

0.004

18

0.0

2
KLAMATH RIVER BASIN Continued 

11-5303. BLUE CREEK NEAR KLAMATH, CALIF

LOCATION. Lat 41°27'00", long 123°53'40", temperature recorder at gaging station o

3.0 miles upstream from mouth, and 9.2 miles southeast of Klamath, Del Norte Cou

DRAINAGE AREA. 120 square miles. 

RECORDS AVAILABLE. Water temperatures: October 1965 to September 1966.

Temperature (°F) of water, water year October 1965 t

Month

October 

Maximum ....

November 

December

January 1"1" " " 

Maximum .... 

Minimum .... 

February

Minimum '.'.'.. 

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May

Minimum .... 

July 

Maximum ....

August 

Maximum ....

September 

Max.mum ....

1

63

55

56 

54

49 

46

37 

36

~

67

60

2

61 

55

57 

54

48 

47

37 

37

67 

60

3,45

62

55

57 

55

49 

47

59 

55

56

54

49 

48

61 

57

56 

53

50 

49

6

62 

55

56 

52

49 

48

Day

7 8910

62 60 

55 56

56 56

55 55

51 50 

49 49

61 

56

56 

54

49

47

59 

57

54 

53

48 

46

1

_ j

i

I j

68 

60

68 

60

68

60

68 

60

69

60

67 

59

69 

60

11 12

60 60 

55 55

54 53 

53 52

49 47 

45 43

1

64 

59

69

59

66 

59

68 

60

66 

59

69

60

66 

60

69

60

I

65 

58

68 

60

63

57

68

60

13

59

55

54 

53

45 

43

64

57

68

60

14 15 16

57 

55

54 

52

43 

41

64 

58

69

60

56 

53

54 

52

43 

41

56 

51

54 

52

42

40

64

58

69 

60

65

58

68 

60

17

58 

52

54 

52

42

40

62 

59

68 

60

18

58 

54

52 

52

43 

41

63 

58

68 

60

19

59 

55

52 

51

42

41

64 

58

68 

60

20

59 

54

52 

52

43 

41

62

60

68 

60
KLAMATH RIVER BASIN Continued

11-5305. KLAMATH RIVER NEAR KLAMATH, CALIF. 

(International Hydrological Decade River Statio

LOCATION. Lat 41°30'45", long 123°58'30", at gaging station, 2.8 miles upstream from Turwar Creek, a

DRAINAGE AREA. 12,100 square miles, approximately, not including Lost River or Lower Klamath Lake ba

RECORDS AVAILABLE. Chemical analyses: October 1953 to September 1966.

Water temperatures: November 1965 to September 1966. 

EXTREMES, November 1965 to September 1966. Water temperatures: Minimum, 42°F Jan. 20, 27, 28.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 12, 1965.... 

Nov. 9.. .........

Dec . 7 ...........

Jan. 11, 1966....

Mar. 14... .......

Apr. 14...... ....

July 18... .......

Sept. 13... ......

Mean 

discharge

(cfs)

4340 

7440 

12800 

31200 

13800 

39000

30900 

14900 

8480 

3450 

2570 

2560

Silica

(S10,)

13 

12 

13 

15 

15 

18

Iron 

(Fe)

0.12 

.01 

.01 

.00 

.02 

.00

Calcium 

(Ca)

13 

12 

17 

22 

24 

22

Magnesium 

(Mg)

5.5 

6.1 

5.7 

8.0 

10 

9.6

Sodium 

(Na)

18

11

7.4 

4.2 

5.0 

3.6

4.3 

3.9 

5.7 

8.3 

18 

15

Potassium 

(K)

0.9 

.8 

1.0 

1.5 

2.4 

2.2

Bicarbonate 

(HCOJ

110 

100

81

83 

88 

70

64 

68 

86 

112 

129 

121

Carbonate

(cog

5 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S0«)

8.0 

6.0 

8.0 

12 

31 

23

Chloride 

(CD

5.4 

3.4 

3.0 

2.0 

1.8 

1.1

1.2 

1.4 

1.6 

3.2 

5.0 

4.9

FluOride 

(F)

0.0

.1

.2 

.2 

.1 

.2

Nitrate

(Ncg

0.6 

.4 

.8 

.8 

.8 

1.1

A Residue at 180°C.
KLAMATH RIVER BASIN Continued

11-5305. KLAMATH RIVER NEAR KLAMATH, CALIF. Co

Temperature (°F) of water, November 1965 to Sep

October

November 

Maximum .... 

Minimum .... 

December 

Maximum .... 

Minimum .... 

January 

Maximum .... 

Minimum .... 

February 

Maximum ....

March 

Maximum .... 

Minimum .... 

April 

Maximum .... 

Minimum .... 

May 

Maximum .... 

Minimum .... 

June

July

August

September

Minimum ....

1

50 

50

45 

45

44

46 

46

49 

49

52 

52

2

49 

48

45 

45

44

47 

46

49 

48

54 

52

3

48 

46

45 

45

44

47 

45

50 

47

54 

52

4

47 

47

45 

44

45

47 

46

50 

47

54 

54

5

57 

56

47 

45

46 

44

45

46 

45

50 

50

54 

54

6

57 

57

47 

46

46 

45

46

45 

45

50 

50

54 

54

7

57 

56

47 

46

46 

45

46

45 

45

50 

50

54 

54

8

56 

55

47 

47

47 

45

46

45

45

51

50

54 

54

9

56 

55

47 

47

47 

46

46

45 

45

50 

50

55 

54

10

55 

55

48 

47

46 

45

45

46

45

50 

49

55 

54

11

55 

55

47 

47

45 

44

45

46 

45

49 

48

55 

54

12

55 

54

48 

47

46 

45

45

47 

46

48 

48

55 

54

13

54 

54

48 

46

46 

45

45

47 

47

49 

47

55 

54

14

54 

54

48 

45

46 

45

45

47 

47

50 

48

55 

54

15

54 

53

47 

46

47 

45

45

47 

47

52

50

55 

54

Day

16

54 

53

47 

45

47 

45

45

47 

47

53 

52

55 

54

17

54 

53

46 

44

46 

44

45

47 

46

53 

53

55 

53

18

54 

54

46 

44

45 

43

45

46 

44

53 

52

55 

53

19

54 

53

45 

43

45 

43

45

47 

46

52

50

54 

55

20

54 

54

44 

43

44 

42

45

47 

47

51 

50

56

57
SMITH RIVER BASIN

11-5325. SMITH RIVER NEAR CRESCENT CITY, CALIF

LOCATION. Lat 41°47'20", long 124°03'20", 

DRAINAGE AREA. 609 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1953 to Septembe 

Water temperatures: October 1965 to September 1966.

t gaging station, 0.5 mile downstream from South Fork, an

1966.

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Oct. 12, 1965. . . .

Jan. 11, 1966.. . .

Mar. 14. .........

June 14. .........

July 19..........

Sept. 13.........

Mean 

discharge

(cfs)

242 

993 

2810 

8700 

3240 

10200

5940 

1360 

686 

356 

248 

243

Silica

(S10,)

11 

12

Iron

(Fe)

Calcium 

(Ca)

7.6 

13

Magnesium 

(Mg)

7.5 

14

Sodium

(Na)

3.1 

2.5 

3.4 

1.8 

2.1 

1.8

1.8 

1.8 

2.3 

1.8 

2.9 

2.8

Potassium 

(K)

0.7 

.9

Blcarbonate 

(HCO,)

93 

83 

65 

50 

55 

49

55 

59 

71 

86 

98 

100

Carbonate 

(CO,)

8 

1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Sulfate 

(S04 )

4.0 

9.0

Chloride

(ci)

2.5 

2.0 

.8 

.4 

.1 

.1

.0 

.0 

.6 

.9 

2.2 

2.2

Fluorlde

(F)

Nitrate 

(NO

0.5 

.2
PACIFIC SLOPE BASINS IN CALIFORNIA

 H >-

+> H

6 £ 6 £ 66 66 66 EE 66 6E E6

33^33^33 33 33 33 =>3 33 33

v s E-E E e_£ s s . s e >-s s se es ss se
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS 

Chemical analyses, in parts per million, water year October 196

Date 

of 

collection

Mean 

discharge

(cfs)

Silica 

(SiQ.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Bicarbonate 

(HCOJ

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(CD

Fluoride 

<F)

Nitrate 

(NO

BUENA VISTA LAKE BASIN 

11-1860. KERN RIVER NEAR KERNVILLE, CAHF. (355600 

Jan. 10, 1966. . . . 

May 5. ...........

41 

768 9.5 5.4 0.4

11 

4.1 0.7

64 

23

0 

0 4.0

3. 6 

1.2 0.

11-1910. KERN RIVER BELOW ISABELLA DAM, CALIF. (35383

Jan. 10, 1966.... 

May 5............

5.0 

79 11 12 1.7

11 

11 1.3

66 

59

0 

0 7.0

3.2 

3.7 0.

TULARE LAKE BASIN 

11-2185. KINGS RIVER BELOW NORTH FORK, NEAR TRIMMER, CALIF. 

Oct. 11, 1965....

Dec. 13......... .

Jan. 28, 1966....

June 13. .........

270

672

505 

505

1280

2970

2690

--

_

_

5.5

5.1

_

_

1.4

_

"-

_

_

0.1

.6

3.1 

3.1

3.7

3.6 

3.8

3.1

1.8

1.3

1.4

--

__

;;___0.4

.4

22 

15

19

22 

24

17

11

8

10

0 

0

0

0 

0

0

0

0

0

-

_-.

_

1.0

1.0

1.0 

1.4

.9

1.0 

1.2

.8

.8

.3

.3

_

_

0

11-2215. KINGS RIVER BELOW PINE FLAT DAM, CALIF. (3649

Jan. 28, 1966....

June 13. .........

203

125

379

2810

283O

5080

_

_

_

7.3

6.8

_

_

_

__

4.2

1.6

_

_

0.2

.9

3.3

1.9

2.5

3.2

2.5

2.5

2.1

_

_

_

_

0.9

.4

6

11

13

16 

18

18

16

16

12

0

0

0

0 

0

0

0

0

0

9.0

_

__

_

2.0

1.0

0.3

.7

.6

.6 

.8

.8

.9

.5

.4

_

_

_

_

0.
PACIFIC SLOPE BASINS IN CALIFORNIA

at 3 » 2

> Is

I

CD W

<0 t-

<0 *

m *

<c in

0

o o

* rt 

H H

H

* 

H

in

o

o

00

o o

o

<£>

H

cs o 

n N

o

H

oo

» to o

m 


cs

o

o 

*

o

rt

m tW CO

H

<£> 

0 

O!

H

O

H 

O!

S «" i a

o

Sin 

o>

H

O

fCO

fa

M

H

:RVOIR, ct

CO

u 

a.

u 

a.

3

i

u

 <

p

S

§

£ £

M

00 

<£>

eg

H

^f H rt

HX CO 

CO H H

^f m co

0

oo o

O1O CO

H

*

m t- co t- « o

H H

^f CO W

o o o 

o

00 O CO 

M « rt

000

O

co i m 

 i 

o

O CO H

H

0 1 0

H

O OO

Tf 00 t£>

t- 1 CO

 1 

o

mm rH

M H rt

eg i eg o'

rr I 00 

 i 

m

i m

n'V

H

iH p O

t- S m ^aa

u> 

u> 

o>

iH

U) rt 

H H CD

H

tt h >>

»^»

m in

O!

H

M ^ 

H IH 

in -H

H i-l 

CO U

 ^ n

. i-t

M fa 

^

- tl

£2

1- 

t?S

(S -ri a*

0)

Q a

CO .

3°.

EM W 

Q ,',

U rH

o: n W «

g|

j W 

W -H "3

g*

S;? h

m S 

S O 

| fe

O!

O teg

H 

H

 * (~

t*. in

oo to

CO N

O

* H

S§

10m*

H

S

0

*

00

o

m

0

eg H

M H

o

*f

00

ICO

O!

o

O! 00

CO «

en

H

O 

ttcn

H O 

*}

H

to

U>

o>

H

O

H o»

as 1 X

o 

*

H

O 

H 

O

O

m t>

3o

u

CO

u

5

(S

1

ERVOIR,

£

q

Ra

g

ti

(S

u> 

u

i 

3

1

00

cs 1

H

mcoco

t- * m 

co co eg

m eg w

o

o oo

^ W 00

H H

* * T|i 

O O O

o

0 CO 10 

CO CO M

o oo

o

in i eg 

 i 

o

* CO M 

O

O 1 O

H H

O OO

to t- «

 * | <o

o

egx in

W H H

O 1 CS

 1 

rt

00 1 O 

CO CO

1 t0 ' t-'

H

to to 

a> 

H 

tO H 

H H 

O!

to h >>

« a oi S<a

m

* * 

eg

M

H

in

CO

eg*

m

M

4

U

\a 

%

1 >j

at

S

u

Sa.

3

i<at

e

u

1

H

e

00 

00

cs

rt

CO tO rH

CO t- O>

eg 10 m

H w w

o

H COO

cn oo in 

eg IH

o 

u>

H

*

O

o'

csm

o o o

o

m o'

eg CD in

o

o

rt

O O O

OHO

to

O

o fo

H eg eg

rt 

H

eg*'

H 

00

O O O

>H * m

to m oo

« rt rt

 to

S

IC 

01 

O! H 

iH

-O

H oi

 H B >>

o 3 <« cjiTia

o 

m to

SH 

O!

M

O 

00

m

3o

<

§§o

§u

2

oT

RESERV

u

8

9

i

a.

P

M

CO

J

£

to"

S.

M

rt 

H

co in in

M * T|l 

* CO CO

w eg w

o

oo o

10 eg co

H H H

IN O O 

O rH t- o" "H

mw1 o o o

o

m H co

O rH O

o

CO 1 CO o'

^ W CO

o

O 1 O

O H

o o o

eg oo oo

t- 1 00

 i 

0

eg oo oo

eg H IH

o i to

H

00 1 CS

* ' V

CO 1 O 

H 1 H

eg eg O'H'O>

H

to 

to 

O! 

H 

tO H 

iH H 

O!

Ill

00

12036]

(375233

fa

d

o 

Q"

1

(SS2

«"

RESERVO

8

i

s

IISLAU

£

s

H 

*H

co<o

(O 00 

01 *

w eg

o o

* o

O O!

* H

in

o

o

O!

m

o o

o

*

o

* in

H

O 

H

O O

 » in

00

o

* M

co M

tH

00 

V

H 

H

<£> 

<£> 

O!

H

O

H 

O!

s~s>

*a a

*

o M

eg

O! 

M

H

00

CALIF -i, 

U

53

y

«

«

B

U

8

co

H 

rt

1C H 1C

t- X tO> 1C M

M H m

H *H

M CO CO

O

00 O O

M 00 O

m Tf eg

o 

o

H

tO

o

s

o o o

o

M

O

H t- t» 

 *' W

O

H

O O O

* O! O!

tO

CO 00 00

m TC w

tH

*

in

in

H

o -f r- in t- i"

CS Cg eg

H

t£> '.

§5 :

rt 

<£> 00* 

O to >>

» a a 

 a as
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN 

Chemical analyses, in parts per million, water year October 1965 t

Date 

of 

collection

Mean 

discharge

(cfs)

Silica 

(S1Q.)

Iron

(Fe)

Calcium 

(Ca)

riesiura 

(Mg)

Sodium

(Na)

tassium 

(K)

Bicarbonate 

(HCOS)

bonate 

(CO,)

Sulfate 

(S04 )

Chloride 

(Cl)

Fluoride 

(F)

N

tr

(N

SAN JOAQUIN RIVER BASIN Continued 

11-3368. LITTLE POTATO SLOUGH NEAR TERMINOUS, CALIF. (

May 12 ...........

NOV. 5, 1965.....

May 5............

668 

3460 

1308 

3202

16

13

16

8.4

7.8

19 

14 

12 

14 1.3

62 

58 

65 

75

0 

0 

0 

0 15

4.2 

30 

20 

20 

SACRAMENTO RIVER BASIN 

11-4196. YUBA RIVER NEAR SMARTVILLE, CALIF. (391310 

1.5

3.1 

3.0 

3.1 

1.8 0.5

58 

38 

46 

33

0 

0 

0 

0 3.0

1.1 

1.0 

1.0 

.5 

11-4335. MIDDLE FORK AMERICAN RIVER NEAR AUBURN, CALIF

Jan. 5, 1966. ....

May 12... ........

120 

1020 

794 

390 11 10 0.7

3.8 

4.7 

2.2 

2.5 1.3

49 

42 

28 

32

0 

0 

0 

0 5.0

3.7 

1.8 

1.2 

2.0 

11-4532. DRY CREEK AT MIDDLETOWN, CALIF. (384405 

May 2............

June 1 ...........

0.1

8.8

30

9.5

5.3

1.9

20

30

16

19

21

22 0.00

22

34

4.8

10

7.2

13

12

61

51

27

39

41

48

4.6

16

2.9

3.3

3.2

4.2

0.5

2.0

.3

.3

.7

.6

306

348

109

151

201

228

268

14

0

6

3

4

0

31

16

6.0

10

12

13

7.2

15

2.3

1.6

2.8

3.6 0.0

GUALALA RIVER BASIN 

11-4675. SOUTH FORK GUALALA RIVER NEAR ANNAPOLIS, CALIF

Nov. 16, 1965....

Jan. 19, 1966... .

Sept . 9 ..........

460

185

485

12

2.5

-

 

___

19

_

27

__

12

8.4

8.2

14

_

1.5

88

92

148

155

0

0

0

__

9.0

6.7

5.7

6.4
PACIFIC SLOPE B4SINS IN CALIFORNIA

« <0 H 0) t- t00 C- 00 I- I- lto 01 r- w oo to

CO CO fO O O r-i 

M H i-l H M «

in in ^< to CD to

O

O O O O O O

tO « « * rl O 

® in in t~ 00 00

1 1 1 <£ 1 CO 

1 1 1 H 1 rH

O

1 [ 1 Ol 1 M

i i i H i o

i-l H

 * 1-1 o w M in

o

1 I 1 H I i-l III 1 

o

f. O 00 00 M O

t-. in ^* to t£ c1 1 1 O 1 O

III -I 

00 CO

o o o o o o

W tO tO O H H 

<-< t-t H H

I I i * i in ill i 

rt H

t~ n 

Mr- c- H M «

|H H H »H

!!!*.!«!

to t*

1 1 1 0) 1 O 

1 1 1 H 1 M

1 

1 1 1 tO 1 tO 

1 1 1 H 1 H

in to ....

tO C£> 

Ol Oi 

H rt 

»H CO tO 01 00 

H H H tO H 

H 

 >>+>

> a ^ >.r-< a,

O 3 of d 3 0)

a "a a a>-3 «

o

5§

RIVER BCAPETOWN

Is03 o;

« 

«

§

in

O)

 *

H

C1 M M

CD N 00 roin t~

m f- oo

« rl «

 t H tH H H

1 H CO 

1 M CO

O

1 00 O

i m * H a

CM |H H

o

o to o

t- to ti o m

N O O

 * H tH H H

1 

»-* H

m 

« OO'M

H H

i in co 

in t*

in oo

co m

i a> cq i 

00 00

m «> 

a> a> ' 

rtH *

- -H 

CO fH 

 (->

^ >. a,

O at S) O a f
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN C

Periodic determinations of suspended-sediment discharge and particle size analyses, 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, plpet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Time 

(24 hour)

Water 

temperature

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Per

0.002 0.004 0.0

SANTA CLARA RIVER BASIN 

11-1080.7. ELIZABETH LAKE CANYON CREEK NEAR CASTAIC, CALIF

Nov. 22...........

Feb. 6, 1966......

Mar. 10. ..........

1700

1740

1310 63

950

23

10

542

230

955

22400

25

fi 8

397

26

2

_

11-108O.8. FISH CANYON CREEK ABOVE CASTAIC CREEK, NEAR CASTAIC, 

Nov. 22.. .........

Nov. 27. ..........

(G)

(G) 

(G)

(G) 

(G)

(G) 

(G)

Dec. 7. ...........

Dec. 30.. .........

Jan. 3, 1966......

(G)

1230

~

1130

57

3

200

500

1200

2200 

4100

3

3

4100

37

6230

5660

9400 

66300

9520

8410

18300

55800 

761000

105000

14

10

10 

5

16

12

12 

6

2

1

1
11-1080.85. CASTAIC CREEK ABOVE CORDOVA RANCH, NEAR CASTAIC, CALI

Jan. 1, 1966. .....

Mar. 10..... ......

2300

2345

2400

1050

0445

1215

1300

1130

1320

1900

1620

_

52

47

_

48

48

49

62

220

700

120

1400

185

55

70

3.9

6710

278

8740

94600

436

385

3990

79800

576000

779

64

4.1

35

20

22

16

9

_

--

64 

11-1093. PIRU CREEK BELOW BUCK CREEK, CALIF. (343957 

Mar. 9, 1966......

fu\

(H)

(H)

(H)

(H)

(H)

1200

_

_

56

1280

820

13600

63

47000

139

25 

T Less than 0.05 ton.

G Stage recorder inoperative. Discharge for -tnples determined by known height of single-stage sa

H «< ! «,_ * ,> , No recorded gage helght- Data determined from Piru Creek above Frenchman

H Single-stage samples
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CALI

Periodic determinations of suspended-sediment discharge and particle size, water year O

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

Water 

temperature 

(°F)

Sampling 

point

Discharge

(cfs)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Perce

0.002 j 0.004 JO. 00

SANTA CLARA RIVER BASIN Continued 

11-1094. CANADA DE LOS ALAMOS BELOW APPLE CANYON, CALIF. (

Mar.

2, 1965. .....

28...........

24..... ......

26....... ....

4. ...........

9, 1966. .....

1415

1430

1315

1200

1045

1520

62

58

55

52

45

56

0.7

.6

15

1.5

1.0

.5

8

29

21000

731

129

31

T

0.1

850

3.0

.4

T

61 75 86 

11-1095.5. PIRU CREEK ABOVE FRENCHMAN'S

Oct. 2, 1965. .....

Nov. 16. ..........

Nov. 20.. .........

Nov. 26. .......... 

Dec 4

Mar. 9. ...........

1315 

1330 

2300 

2115 

0730

1030 

1020 

1240 

1300 

1900 

1705 

0840

70 

53

46 

49 

46

49 

43

0.4 

567 

3150 

68 

9420

115 

30 

17 

3620 

9480 

77 

27

2 

31900 

36100 

192 

25400

907 

90 

320 

21900 

20500 

1030 

104

11-1096. PIRU CREEK

Nov. 15, 1965.

Nov. 25. .......... 

Nov. 29. ..........

1000 

0930 

1135 

0925 

0810

72 

165 

1700 

1150 

220

676 

12800 

11900 

2270 

414

T 

48800 

318000 

35 

646000

282 

7.3 

15 

214000 

525000 

214 

7.6

ABOVE LAKE PIRU

131 

7810 

54600 

7050 

246

FLAT,

25 

19

20

21 

16

CALIF. (3

30 

23

24

26 

23

46 

36

29

35 

33

, CALIF. (343140 

49 

28

56 

34

71 

46
PACIFIC SLOPE BASINS IN CALIFORNIA

CO

I

t- * H m co

rt CO CO H 

H

<o 01 TI* oo m in o co CM

 * C- 00 m rt CNTfCM 

i-l H H H

CM

CO I1- CM CM H O C~ O 00 in T* in in in co co t~ in

oooo o o in in m

 ** O H .-I M in TfCM 

CMO TfCJ ,-1 * CO CO 00

H H H O H H H H O

in . .» . . . . . 

01 . -01 . . . . .

"C"- H " Ol . t~ i-t Ol

rt CO

o o o g ch^hiH CDdldlcQ ctt ctt ctt ctt Q, 000*3 >T>aaa<

cCM

o

H

34352C

M

U

8

a

Pd

H 

Pd 

K 

U

SALSIPUEDES

H

H

U 

1

O

o

8

Ol

H 

01

s

00 

IE

S

s

* ^ «*» 

 tf

CO H H H H i-f

H 03 W i-l N H r-l

SSSS 55SS

mmino inoom

Hr-IHiH OOrHO

Ol -Ol . . . . . 

rf -H . . . .

-H -t- -r-lfuucc a s-, ^ h Sew 3 oi CD ctt d a 

o *3>-3 tn aa <

CM 

CM

O

O 

CMi-t

00

Pd" 

0

CO O«

PO K

K S

Pd 2 

> 

M -

JOAQUIN F 1LVER CREI

"|

w 

pa

w

Pd 

U

Pd

2

in

Jj

uu u

1 O 1 O 

1 O 1 O

H H

O 00 O (0 

O Ol O 01

H H

Ol 1 Ol 1

t» » rt 00 

00 00 00 t»

CO 1 H 1

t- 1 CO 1

 * <* rt O 

CM H Ol

OOOO 

OOOO

oo CM 01 01

r4 H r4 H

O CO

t^ O CM CM

o o m m

C0° CO? 

H H H rt

to 

Ol . . .

OOOO

~

H 

H

Ol 

« 

H 

« 

00

ft".

a

K

K 

H

§ 

U

m i

H

> »

1 1 1 O 1 1 O O 1 1 1 

1 1 1 O 1 1 O O 1 1 1

i i i * i i 01 m i i i

1 1 1 00 1 1 00 00 t 1 1

1 1 1 « 1 1 <H<N 1 1 1

i i i co i i c~ in i i i

1 1 1 <M 1 1 00 O 1 1 1

iiimi itOTfiii

".

H .-HDH (DH.-IH 

00 H

H

« O CO CO * t- t- 00 (0 * 00

co ^ co co « in H m CM M

m

HHHOCO T(<cqt~eM

o

SS333 SSstC^

m o o o o o m o o o o

T-tOrHHH HOrHHiHO

(0 . .(0 ...... 

Ol . .Ol ...... 

H H ......

CM "CO O N ......

.*" a

liiil filial
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN C

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, 

P, pipet; S, sieve; V, visual accumulation tube; W, in dis

Date of collection

Oct. 3, 1965. ....

Oct. 9. ..........

Oct. 16.. ........

Nov. 8.. .........

Nov. 13. .........

Nov. 14.. ........

Nov. 15. .........

Nov. 17... .......

Nov. 20.... ......

Nov. 23.. ........

Nov. 27... .......

Dec. 11. .........

Dec. 18. .........

Jan. 5. ..........

Jan. 9....... ....

Jan. 15. .........

Time 

(24 hour)

1130 

1625 

0945 

0930 

0930 

0930

0930 

1230 

1700 

0930 

0930 

1000

1230 

1600 

1200 

0930 

1340 

1530

1000 

1030 

1400 

1200 

0925 

1545

1100 

1030 

1200 

0800 

1700 

0800

1130 

1700 

1700 

0930 

1030 

0930

Water 

temperature

(°F)

60 

66 

58 

50 

53 

53

51 

53 

54 

50 

51 

51

54 

54 

51 

50 

48 

49

44 

46 

48 

44 

35 

39

38 

43 

40 

41 

41 

45

42 

47 

47 

46 

44 

44

Sampling 

point

Discharge

(cfs)

11-3710

14 

15 

15 

18 

15 

15

21 

24 

48 

26 

91 

888

1280 

616 

1440 

785 

327 

308

598 

404 

212 

206 

108 

106

91 

462 

339 

512 

670 

1100

1130 

1100 

1020 

835 

745 

319

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

P

0.002 0.004 0

SACRAMENTO RIVER BASIN 

. CLEAR CREEK AT FRENCH GULCH, CALIF. (404

1 

2 

1 

1 

1 

2

2 

4 

92 

2 

12 

112

77 

56 

74 

18 

3 

4

8 

3 

1 

1 

5 

2

6 

1 

21 

17 

40

27 

66 

19 

19 

7 

2

T 

.1 

T 

T 

T 

.1

.1 

.3 

12 

.1 

2.9 

269

266 

93 

288 

38 

2.6 

3.3

13 

3.3 

.6 

.6 

1.5 

.6

T 

7.5 

.9 

29 

31 

119

82 

196 

52 

43 

14 

1.7
PACIFIC SLOPE BASINS IN CALIFORNIA

i I I I i I I t- I I I

I i i I I I I i i I I I I I I I I I

I I to i i i

I I I I I I I i I I

« CJ O O

i f co cxi m

H CM 00 O O 00 00 

to to 00 CM * H iH

O>O«HNOO

n CM CM CM 10 eft

(^OOOIOSOOO

oooooo

CM CM INK H H

a a a a a a a a a a

IB a> o o a> o a a a a a a
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CALI

Periodic determinations of suspended-sediment discharge and particle size, water year O

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, dec

P, pipet; S, sieve; V, visual accumulation tube; W, in distille

Date of collection

Time 

(24 hour)

Water 

temperature

(°F)

Sampling 

point

Discharge 

(ds)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Perce

1 1 

0 . 002 j 0 . 004 1 0 . 00

SACRAMENTO RIVER BASIN Continued 

11-3710. CLEAR CREEK AT FRENCH GULCH, CALIF. (404140 12238

1645

1735

1425

53

48

50

49

54

54

58

570

544

327

230

145

10

3

2

15

13

10

4.9

4.2

2.6

1.2

.8
11-3788.6. RED BANK CREEK AT RAWSON ROAD BRIDGE, NEAR RED BLUFF, 

(Formerly published as Red Bank Creek at mouth, near Red 

Nov. 17, 1965.. ...

Nov. 24...........

Jan. 11.. .........

T Less than 0.05 t 

D Daily mean disch

2300 

0700 

1730 

1030 

1450 

0900

1330 

1130 

0830 

1115 

1330 

0900

1700 

0900 

0900 

0935 

0830

2000 

0915 

0930 

0915 

0930 

0830

1530 

0925 

2200 

0900 

1700 

0900

0830 

1230 

0930 

1000 

1520 

0830 

on. 

arge.

55 

55 

55 

55 

51 

55

60 

55 

50 

50 

50 

50

50 

50 

45 

50 

50 

55

50 

50 

45 

50 

50 

40

50 

45 

50 

50 

50 

50

50 

50 

50 

50 

52 

50

1060 

498 

296 

156 

141 

88

52 

37 

29 

37 

22 

18

D 15 

11 

9.8 

8.8 

6.2 

4.8

4.2 

3.6 

3.6 

3.3 

3.3 

2.8

139 

1800 

894 

804 

530 

322

226 

171 

124 

96 

96 

88

2580 

309 

339 

132 

96 

10

9 

4 

3 

109

1 

2

2

1 

1 

1 

3 

4

1 

1 

2 

1 

8 

1

291 

2870 

3220 

1070 

563 

59

61 

52 

64 

41 

24 

56

7380 

415 

271 

56 

37 

2.4

1.3 

.4 

.2 

11 

.1 

.1

.1 

T 

T 

T 

.1 

.1

T 

T 

T 

T 

.1 

T

109 

13900 

7770 

2320 

806 

51

37 

24 

21 

11 

6.2 

13

-

-

-

43

-

~

-

25

53

~

~

"

-

66

~
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Time 

(24 hour)

Water 

temperatureSampling 

point

Discharge

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Per

0.002|0.004 0.0

SACRAMENTO RIVER BASIN Continued 

11-3788.6. RED BANK CREEK AT RAWSON ROAD BRIDGE, NEAR RED BLUFF, CALI

Jan. 13, 1966. . 

Jan. 14...........

Jan. 16. .......... 

Jan. 17........... 

Jan. 18. ..........

Feb. 4..... .......

Feb. 7. ...........

Feb. 8...... ......

Fsb 19

Mar 5

Apr. 5. ...........

0800 

0930 

0730

0900 

0830 

0730

0950

0800

1645

1515

1900

0855

50 

50 

50

50 

50 

50

49

48

49

50

62

61 

53 

48

42 

37 

32

128

1320

114

72

81

13

21 

13 

21

10 

6 

10

22

27

18

22

11

3.5 

1.9 

2.7

1.1 

.6 

.9

3960

8.3

3 4

1 9

.4

~

_ _ _ 
PACIFIC SLOPE BASINS IN CALIFORNIA

H 10 Clrt N

O 00 H H OO 00 I

oooomo

4OHHOH OHHHHH < O H O H O
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, plpet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperature

Sampling 

point

Discharge

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Per

0.0021 0.00410.

SACRAMENTO RIVER BASIN Continued 

11-3906.72. STONE CORRAL CREEK NEAR SITES, CALIF. (391718 

Feb. 2............

Feb. 4............

Feb. 4........... .

Feb. 5. ...........

Feb. 6............

Feb. 8............

Feb. 9........ ....

Feb. 13...........

Feb. 17. ..........

Feb. 19.. .........

Bar. 25........... 1730

44

44

CQ

48

48

60

e»7

60

60

69

2 5

1.1

.9

.7

.6

.6

345

534

23

23

52

71 .1
Mar. 27 ...........

Mar. 31...........

Apr. 22.. .........

1000 

1825 

1730 

1145 

1500 

1335

1715 

1712 

1710 

1655 

1704 

1700

58 

68 

71 

65 

69 

69

59 

65 

67 

70 

65 

67

.6 

.5 

.5 

.6 

.5 

.6

.5 

.4 

.4 

.2 

.1 

.1

59 

76 

72 

53 

25 

64

32 

18 

23 

21 

7 

9

.1 

.1 

.1 

.1 

T 

.1

T 

T 

T 

T 

T 

T

11-4230. BEAR RIVER NEAR AUBURN, CALIF. (390100 1

Apr. 15.......... .

July 14. ..........

Aug. 30. ..........

0800 

0930 

1000 

1415

1320 

1330 

0850 

1400

53 

41 

39 

43

61 

78 

66 

70

6.8 

3.8 

252 

180

606 

6.6 

9.1 

6.4

2 

9 

9 

13

106 

2 

4 

3

T 

0.1 

61 

63

173 

T 

.1 

.1

11-4335. MIDDLE FORK AMERICAN RIVER NEAR AUBURN, CALIF. 

Oct. 29, 1965. ....

Aug. 25. ..........

1020 

1204 

1245 

1015

1030 

0945 

1000 

1400

54 

51 

45 

46

57 

63 

71 

76

130 

836 

185 

450

1310 

438 

121 

41

2 

36 

1 

3

31 

10

1 

1

0.7 

81 

.6 

3.5

110 

12 

.3 

.1

T Less than 0.05 ton.
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediemnt discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperatureSampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Pe

.002| 0.004 I 0.

SACRAMENTO RIVER BASIN Continued 

11-4489. HIGHLAND CREEK ABOVE HIGHLAND CREEK DAM NEAR KELSEYVI

Jan. 5, 1966......

Apr. 27........ ...

July 7 ............

Feb. 2, 1966......

Apr. 1............

Aug. 17.......... .

Sept. 16..........

Nov. 19, 1965.....

Dec. 29... ........

1030 

1335 

1000 

0930

1500 

1415 

0945 

0900

1150 

1300 

1440 

1700 

1230 

1725

1200 

1430 

1330 

1510 

1215 

0910

0920 

0920 

1340 

1325 

1320 

0835

1045 

1330 

1245 

1215 

1115 

1325

42

42 

37

56 

68 

56 

75

53 

42 

42 

44 

49 

69

69 

82 

77 

88

64

152 

265 

13 

10

8.7 

3.0 

1.8 

.3

54 

95 

18 

2

2 

9 

3 

3

22 

68 

.6 

.1

T 

.1 

T 

T

11-4517.2. BEAR CREEK NEAR RUMSEY, CALIF. (39563

46 

260 

216 

77 

76 

20

8.6 

3.4 

1.6 

0.4 

1.7 

1.3

50 

1920 

574 

35 

14 

17

2

47 

22 

5 

24 

10

6.2 

1350 

335 

7.3 

2.9 

.9

T 

.4 

.1 

T 

.1 

T

59 

11-4525. CACHE CREEK AT YOLO, CALIF. (384330 

54 

54

50 

47 

46

44 

46 

42 

41 

44 

45

431 

431 

66 

94 

35 

24

3.7 

1.7 

419 

202 

2850 

2290

1260 

1220 

495 

183 

429 

33

23 

15 

851 

159 

4020 

4210

1470 

1420 

88 

46 

41 

2.1

.2 

.1 

963 

87 

30900 

26000

45 

56
PACIFIC SLOPE BASINS IN CALIFORNIA

[

0

1 »

!§!!§!!

H H

1 00 1 | O O 1 

1 Ol 1 1 Ol O 1 H

1 ffl 1 1 O O I 

1 <3> | 1 00 O) 1

1 CM 1 1 O) (O 1 

1 O) 1 | (O 00 1

> n i i i i i

1 t- 1 1 1 1 1

1 O | | | | 1

i in i i i i i

o

O O O O 10 CM 00 in o o O) T* O)

CM O » t» CM 

CM O 00 CM 

CM d 

CM

t» O O 10 CO O IO 

CO * 00 Tf Tf O tt>

t- n t- to H H H Tf N

O O O O I"!1 O 

CO O t» O ro H CM 

H 05 H <O <S> m 

H t- 10 H

H

<D C- (31 <D IO IO *

* ^" T)l * Tf 10 (O

IO O O O O IO IO

sssssss H H H H H H rH

O) <O . . . . . 

H 0> 

o " m * 

CO IO <D H CO CM H

o a a o s> o h Sa a 3 o o c >-5 >^ >^ b b. <

ti

CM

H

iH 

CM

Til

09

M

(H 

3

O

w 3

s §

g i

RUSSIAN RI1 

NEAR REEKa

SULPHUR UG C

s * 

1

H 

H

M

§

H

09 

O

1C Ol f CO f f CMH

10 HCMH E^fHEHEHfH

 * O) ^" <S> * CM M CM H CM H H H 

CD

O 00 O (D CO

CMtOOrHCqCM O M 00 IO IO * M

roMCMtont* COH

H rH H

O3OOO(31CO HCM^O)OOC~C~ 10 * T)I T)I 10 to t~ t~ t» t» a> t» to

OOOOIOO IOIO1OIOOOO 

COrHOCOTCO TUTHTHCMOCOO

m 10 to o m * cMcMHt^cncMO

HrHHHTHH HrHHOOHH

IO .(O ....... 

(O .131 ... ....... 

d . H .......

..... ..... .0

*00 CMGOTfrH -(DOO -COCMCO 

00 H CM H CM CM Ol H H M H

i-t 

> a a o u it >> c -H M M a D,

O O d O d a « 3 3 3 3 O O

2Q->CL.a< a -5 "-3 < < w w

L22454

10 

CM

00

sn 

d.'

g

?

M

K

S

55

3. MAACAMA CR

CO<o

T)l

H 1-i

>

o 

o

H

^" 

O

n

00

S

H

H H 10 l> O CO H

O*O H H H H 

H 

00 

IO

10 <O T)i CO 10 CO CO CM H H 

t» t^ 

00

00 * H

COOOIOCO <DH<3><DCO 

CM <O <O CM CM CO H 

Tf rH H 

CM

(OCDICMCD CDCMCMCOIO 

1C t 1 t -t Tf CC COCO <£

OOOOO lOOIOOtO 

H * 10 10 H i-iCMfrCrl" 

H CO 10 CM H rH 10 H H Ol 

HrHrHHt-i HHHHO

«.«!.. ..... to .to ..... 

en .o> . .....

-Til -0> 10 t- O -O CM 

OOrHIOHCM CMCO *rHrH 

CM

>GBB.O ^^>)CirH

0 0 S S O 0 rt d 3 3

z Q -j -> a. u. a a -5 ->
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN C

Periodic determinations of suspended-sediment discharge and particle size, water yea

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, 

P, pipet; S, sieve; V, visual accumulation tube; W, in dist

Date of collection

Time 

(24 hour)

Water 

temperature

(°F)

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

P

0.002 0.004 0

EEL RIVER BASIN 

11-4740. EEL RIVER BELOW DOS RIOS, CALIF. (39441

Dec. 24.. .........

Feb. 3... .........

Feb . 4 ............

1330 

1515 

1720 

1320 

1505 

1445

1400 

1530 

1445 

0920 

1015 

0945

1345 

1730 

1615 

1720 

1730 

1700

1620 

1715 

1445 

1500 

1400 

1200 

1530

1015 

1430 

1410 

0920 

1410 

1415 

1015

37 

37 

40 

38 

44 

44

42 

45 

42 

40 

39 

47

47 

48 

48

49 

44 

40 

38 

38 

43 

45

318 

3790 

2900 

1720 

1210 

19400

8820 

8600 

6480 

7560 

4350 

67900

85200 

43700 

21700 

15300 

9560 

7540

6120 

4930 

4330 

3760 

D 3750 

3060 

2740

1780 

1780 

D 6600 

D 5000 

D 5000 

D 13500 

14700

12 

4970 

349 

164 

73 

6340

1550 

1340 

636 

1080 

350 

4490

4280 

3410 

2310 

1900 

1350 

973

872 

650 

506 

510 

466 

404 

286

176 

172 

259 

182 

187 

237 

1110

10 

50900 

2730 

762 

238 

332000

36900 

31100 

11100 

22000 

4110 

823000

985000 

402000 

135000 

78500 

34800 

19800

14400 

8650 

5920 

5180 

4720 

3340 

2120

846 

827 

4620 

2460 

2520 

8640 

44100

"

24

--

30

--

35 

23

26

39
Hay 2

Aug. 30. ..........

Oct. 5, 1965......

Dec. 28.. .........

Jan . 7 ............

Jan. 19. ..........

Feb. 2.. ..........

Apr. 7...... ......

Aug. 31. ..........

1030 

1400 

1025 

1500 

1115 

1530

1100 

1500 

1130 

1100 

1500 

1020 

1500 

1500 

1615 

1145

0745 

1035 

0730 

1430 

1340 

1500 

1100

1210 

1005 

1030 

1130 

1030 

1700 

1015

37 

38 

40 

40 

41 

41

43 

43 

38 

44 

44 

44 

45 

60 

77 

67

64 

51 

33 

42 

47 

46

47 

46 

36 

55 

60 

78 

67

10700 

10300 

2610 

2530 

3200 

3080

3760 

3620 

2350 

6070 

7700 

10300 

9540 

1790 

58 

D 22

11-4745.

2.6 

250 

71 

10300 

12600 

3630 

452

1200 

1030 

520 

378 

122 

9.8 

3.0

465 

465 

110 

112 

128 

135

90 

86 

104 

254 

322 

573 

540 

138 

4 

1

13400 

12900 

775 

765 

1110 

1120

914 

841 

660 

4160 

6690

15900 

13900 

667 

.6 

.1

NORTH FORK EEL RIVER NEAR MINA, CALIF. (3956

2

31 

3 

5260 

4310 

1730 

54

350 

291 

37 

67 

5 

1 

1

T 

21 

.6 

146000 

147000 

17000 

66

1130 

809 

52 

68 

1.6 

T 

T

23 26 37 

T Less than 0.05 ton. 

D Daily mean discharge.
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN C

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperature

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Pe

0.002j0.00410.0

KLAMATH RIVER BASIN 

11-5258. WEAVER CREEK NEAR DOUGLAS CITY, CALIF. (404

Jan. 30. ..........

Feb. 20...........

Apr. 8............

Apr. 11... ........

Apr. 13...........

1230

1130

1030

1100

1225

1645

1400

0805

1615

0700

0700

0850

1300

1700

73

56

48

43

40

32

40

42

38

38

39

42

43

46

39

48

50

50

48

52

50

54

2.5

41

14

39

31

80

183

270

50

168

12

93

177

92

92

124

160

107

120

92

3

282

26

31

18

70

98

48

22

694

62

14

10

22

214

50

30

14

170

510

212

1840

52

31

1.0

3.3

1.5

35

71

30

25

28

12

.5

1.8

1.2

5.5

3.0

102

18

7.5

3.5

57

220

61

596

13

_

_

_

_

_

_

_

_

_

_

_

_

_

_

_

_

_

_

_

56
Sept. 16...... ....

1250 

1440 

1400 

1500 

1000

1120 

1310 

1025 

1015 

1015

55 

58 

60 

58 

50

54 

62 

62 

51 

63

92 

124 

92 

92 

92

92 

79 

72 

28 

5.1

1280 

1740 

132 

102 

129

64 

58 

205 

6 

2

318 

583 

33 

25 

32

16 

12 

40 

.5

T

"

11-5265. NORTH FORK TRINITY RIVER AT HELENA, CALIF. (40

Oct. 5. ...........

Nov. 27.. .........

Dec. 2. ...........

Dec. 4............

2100 

1600 

0945 

1500 

1600 

1600

1000 

1400 

1515 

1600 

1600 

1650

1415 

0915 

1600 

1415 

1400 

1600

1530 

1500 

1500 

1330 

1545 

1445

57 

60 

55 

61 

52 

53

49 

49 

49 

46 

45

46 

43 

39 

38 

43 

42

41 

42 

43 

42 

43 

43

24 

24 

24 

21 

26 

23

68 

226 

453 

577 

209 

170

153 

253 

260 

250 

207 

183

174 

163 

158 

160 

182 

217

1 

5 

1 

2 

24 

6

4 

56 

70 

23 

23 

11

11 

20 

11 

6 

5 

3

2 

3 

2 

2 

3 

11

0.1 

.3 

.1 

.1 

1.7 

.4

.7 

34 

86 

36 

13 

5.0

4.5 

14 

7.7 

4.0 

2 . 8 

1.5

.9 

1.3 

.9 

.9 

1.5 

6.4

T Less than 0.05 ton.
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperature

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Per

0.002 JO.004 0.0

KLAMATH RIVER BASIN Continued 

11-5265. NORTH FORK TRINITY RIVER AT HELENA, CALIF. (404655 

Jan. 6. ...........

1530

1415

1345

1100

1530

1515

1445

1300

1210

1230

1415

1545

1100

1500

1040

45

44

46

44

45

44

42

43

40

38

36

36

34

34

35

33

32

35

34

33

37

36

37

39

37

37

37

38

41

540

526

415

341

291

237

207

178

158

145

129

129

115

110

106

100

255

84

95

384

257

747

1700

46

40

25

27

26

32

21

8

12

2

3

5

2

3

3

2

3

8

2

2

2

2

187

130

15

18

47

1080

66

58

36

30

24

25

13

4.5

5.8

.9

1.2

1.7

.7

.9

.9

.6

.8

5.5

.5

.8

.5

238

135

10

6.2

13

46

95

4960
Feb. 4. ...........

D Daily mean disc

1600 

1530 

1545 

1430 

1115 

1000

1630 

1630 

1700 

1600 

1430 

1730

1525 

1430 

1115 

1430 

1300 

1445

1230 

1545 

1140 

1315 

1130 

1730

1100 

1230 

1730 

1430 

1430 

1600

1005 

1600 

1500 

1500 

1115 

1200 

large.

39 

43 

45 

42 

41 

42

42 

43 

44 

44 

42 

42

41 

41 

38 

40 

39 

41

40 

43 

42 

43 

40 

41

41 

44 

44 

44 

44 

43

43 

44 

45 

45 

43 

43

1710 

1340 

1110 

886 

703 

551

431 

377 

363 

463 

554 

519

479 

437 

398 

389 

349 

330

297 

282 

267 

256 

246 

242

314 

613 

482 

416 

355 

333

472 

572 

728 

699 

761 

667

546 

156 

113 

68 

49 

19

13 

18 

13 

17 

25 

12

22 

11 

10 

8 

4 6

3 

6 

3 

2 

1 5

40 

20 

14 

8 

13 2

25 

90 

26 

23 

20 

18

2520 

564 

339 

163 

93 

28

15 

18 

13 

21 

37 

17

28 

13 

11 

8.4 

3.8 

5.3

2.4 

4.6 

2.2 

1.4 

.7 

3.3

34 

33 

18 

9.0 

12 

1.8

32 

139 

51 

43 

41 

32
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, de: ±3, Douom wunarawai tune; >-, cnemicaiiy dispersed; u, ae

P, pipet; S, sieve; V, visual accumulation tube; W, in distil

Date of collection

Time 

(24 hour)

Water 

temperature

Sampling 

point

Discharge 

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Per

0.002 0.004 0.0

KLAMATH RIVER BASIN Continued 

11-5265. NORTH FORK TRINITY RIVER AT HELENA, CALIF. (404655 

Mar. 9............

1045

1600

1340

1500

1210

1515

1440

1520

1715

1605

1645

1340

1055

1630

1655

1715

1350

1730

1645

1655

1550

1330

1730

44

39

45

42

42

44

44

44

45

45

45

46

44

43

44

46

41

41

42

43

46

45

357

320

287

274

272

363

516

791

476

422

395

386

374

309

297

314

787

1590

20

7

5

4

4

5

1

3

2

2

6

4

5

3

9

11

5

5

4

3

16

3

5

9

6

5

4

104

203

279

22

6.7

4.6

3.5

3.2

3.9

.7

2.2

1.5

1.6

5.6

3.9

4.9

3.1

13

23

6.4

5.7

4.3

3.2

17

3.0

4.3

7.5

4.8

4.2

4.3

221

740

1200
PACIFIC SLOPE BASINS IN CALIFORNIA

1 1 1 1 1 1 1 1 1 1 I 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 O 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1

rH

II 1 1 1 1 O 1 

II 1 1 1 1 0 1

rH

I I I I I I ...... I I 1 I I I I I I 1 I I

i i i m i i i III I I I I O I

i o i i i i i i i i i i i i o i

i i i to i i

III I I I I 00 I

cicoi««> o t- oo o ooooo

ID t- N to 10 * 00 00

O rt 10 O 10 f.

IO Tj< O U> 00 00

O 00 01 10 10 Tf

COOOOdCAU) C^HHOOCOCO

i-lrtNU)nn

0)TflDO)0)lO lOTfoOQOC 

00 O 0> 0> 10 N "13 N CO 00

100010100 mioomoo ioioo>oioo

rtfrtrtlOO i-lfOrtlOrt

'OOCO'J'rtlO TfTfTfUJrtiO

mmiOIOrtO

o >o o m o o

nrt * mrt o

o n o o rt "J"

10 o m o o 10 001010100

1< CO rt O CO 1< N O 1< 1< O IO t-iot-t-mto io t- io 10 i< oo

q N N Cq N N fJNCOCOCICO rt N CO "J" IO 10 t- 00 O i-l i-l i-l

M M « M M M M M M M « M M M M M M M « M M C, C. O, O, C. O, 0,0,0,0,0,0,
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

______________________________P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperatureSampling 

point

Discharge

(cfs)

Sediment 

concentration 

(ppm)

Sediment

discharge

(tons per day)

Pe

0.002 0.004| 0.

KLAMATH RIVER BASIN Continued 

11-5265. NORTH FORK TRINITY RIVER AT HELENA, CALIF. (404655 

Apr. 12, 1966.....

Apr . 14 ...........

Apr. 15...........

Apr. 18...........

Apr. 26. ..........

Apr. 27...........

May 2 .............

May 4. ............

May 5 .............

May 8 .............

May 9

May 11

May 19.... ........

May 21 ............

1745

1745

1015

0900

1720

1725

44

46

52

58

981

632

643

482

126

37

20

27

34

31

13

20

3

13

14

122

34

22

317

21

23

12

3 2

18
July 5............

1620

1800

1620

1855

1925

1825

1800

57

59

62

59

61

58

57

53

47

50

54

58

55

53

58

64

64

60

59

67

65

68

437

389

398

413

325

258

242

231

191

199

210

260

193

131

144

122

110

1489

107

119

14

25

48

24

64

23

15

127

108564432252211

16

7.8

6.3

11

12

7.5

12

8.9

15

22

33

16

40

12

7.7

6.4

4.0

5.3

5.6

3.2

5.0

4.2

2.3

2.1

1.3

.8

.7

1.9

.8

.3
MISCELLANEOUS ANALYSES OF STREAMS IN PACIFIC SLOPE BASINS IN CA

Periodic determinations of suspended-sediment discharge and particle size, water year 

(Methods of analysis: B, bottom withdrawal tube; C, chemically dispersed; D, d

P, pipet; S, sieve; V, visual accumulation tube; W, in disti

Date of collection

Time 

(24 hour)

Water 

temperature

(°F)

Sampling 

point

Discharge

(cfs)

Sediment 

concentration 

(ppm)

Sediment 

discharge 

(tons per day)

Per

0.002 0.004J0.0

KLAMATH RIVER BASIN Continued 

11-5265. NORTH FORK TRINITY RIVER AT HELENA, CALIF. (404655 

1615 

1820 

1845 

1825 

1955

1645

68

65 

67 

68 

64 

63

108 

89 

86 

83 

79 

25 

31

1 

2 

1 

1 

1 

2 

2

0.3 

.5 

.2 

.2 

.2 

.1 

.2
INDEX

A Page

Abert Lake Basin.................... 313,317

Acidity............................. 20

Alameda Creek basin................. 355-364

Alameda Creek near Niles, Calif..... 360-364

Aluminum............................ 12

American River, at Fair Oaks,

Calif......................... 533

at Nimbus Dam, near Fair Oaks,

Calif....................... 532

at Sacramento, Calif.............. 534

North Fork, at North Fork Dam,

Calif....................... 528

South Fork, near Kyburz, Calif.... 529

near Lotus, Calif............... 530-531

Animas River at Farmington, N. Mex.. 150-155 

Antelope Creek, near mouth, near

Los Molinos, Calif ............ 465

near Red Bluff, Calif............. 464

Antelope Valley..................... 297

Antioch, Calif., San Joaquin River

at............................ 423

Arcata, Calif., Mad River near...... 654-658

Archuleta, N. Mex., San Juan River

near.......................... 147-149

Arroyo Seco near Greenfield, Calif.. 333-336 

Arroyo Valle near Livermore, Calif.. 355-359 

Auberry, Calif., Willow Creek

near.......................... 380

B

Baggs, Wyo., Little Snake River

near.......................... 104

Bakersfield, Calif., Kern River

near.......................... 36 9

Barium.............................. 18-19

Bartlett Dam, Ariz., Verde River

below......................... 252-254

Battle Creek below Coleman Fish

Hatchery, near Cottonwood,

Calif......................... 454-456

Bayfield, Colo., Vallecito Creek

near.......................... 144-146

Bear River, at Border, Wyo.......... 271-273

near Preston, Idaho............... 274

near Wheatland, Calif............. 525

Bear River basin........ 271-274,314-316,695

Bend, Calif., Sacramento River at... 457 

Bethany, Calif., Old River near..... 409

Bicarbonate, carbonate and hydroxide 14 

Big Chico Creek, at Chico, Calif.... 477

near Chico, Calif................. 476

Big Cottonwood Creek near Salt Lake

City, Utah.................... 281

Big Creek, above Pine Flat

reservoir, near Trimmer,

Calif......................... 378

below Huntington Lake, Calif...... 379

Big Grizzly Creek near Portola,

Calif......................... 488-489

Big Piney, Wyo., Dry Piney Creek

near.......................... 69-71

New Fork River near............... 66-68

Big Rock Creek near Valyermo,

Calif......................... 297

Big Smoky and lone Valleys.......... 296

Big Sur River near Big Sur, Calif... 320 

Big Trees, Calif., San Lorenzo

River at...................... 342-343

Biochemical oxygen demand........... 23

Black Butte River near Covelo,

Calif......................... 610-614

Blacks Fork, near Little America,

Wyo........................... 88-92

near Lyman, Wyo................... 83-86

Blue Creek near Klamath, Calif...... 687

Bluff, Utah, San Juan River near.... 166-172

Bodega, Calif., Salmon Creek at..... 56.3

Border, Wyo., Bear River at......... 271-273

Borel Canal below Isabella Dam,

Calif......................... 368

Boron............................... 16

Bradley, Calif., Nacimiento River

near..........................

Salinas River near................

Branscomb, Calif., South Fork

Eel River near................

Brentwood, Calif., Indian Slough

near..........................

Bridgeville, Calif., Van Duzen

River near....................

Bright Angel Creek near Grand

Canyon, Ariz..................

Bromide.............................

Bryson, Calif., Nacimiento River

near..........................

Buena Vista Lake basin.......... 365-

Burnt Ranch, Calif., Trinity

River near....................

Butte City, Calif., Sacramento

River at......................

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

Cache Creek, above Rumsey, Calif....

near Capay, Calif .................

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

North Fork, near Lower Lake,

Calif. ......................

Calaveras River , above New Hogan

Dam , Cal if ....................

at Jenny Lind , Cal if ..............

below New Hogan Dam, near Valley

Springs , Calif ..............

near Stockton, Calif ..............

Calcium. ............................

Calpella, Calif., East Fork

Russian River near. ...........

Camanche Dam, Calif. , Mokelumne

River below. ..................

Cameo, Colo., Colorado River near... 

Cameron, Ariz. , Little Colorado

River at ......................

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

Canyon Creek near Georgetown, Calif. 

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

Carlin, Nev . , Humboldt River at.....

Carmel River near Carmel, Calif.....

Carson River, East Fork, near

Gardnerville, Nev. ............

near Silver Springs, Nev ..........

Carson River basin. ............. 298

Charleston, Ariz. , San Pedro River

at.

Chemical oxygen demand. .............

Chemical quality. ...................

Chewaucan River near Valley Falls,

Or eg ..........................

Chico, Calif., Big Chico Creek at...

Big Chico Creek near. .............

Butte Creek near. .................

Chittenden, Calif., Pajaro River at. 

Chloride. . ..........................

Chromium............................

Cibola Valley, Ariz., Colorado

River below...................

Cisco, Utah, Colorado River near....

Dolores River near................

City Creek above Wasatch Drive,

near Salt Lake City, Utah.....

Clear Creek, at French Gulch, Calif, 

near Igo, Calif...................

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

Clifton, Ariz., San Francisco River

at............................

Clio, Calif., Middle Fork Feather

River near....................

Cloverdale, Calif., Dry Creek near.. 

Russian River near................

Collection and examination of data.. 

Colma Creek at South San Francisco,

Calif.........................

Colma Creek basin...................

Page

327

332

634-637

410

647-649

192

19

323-326 

.369,692

480-481 

483-484

550-553 

554 

547

400

402

401

402

13

414-415 

47-49

182-186

428-429

529

554

302-304 

321

298

299-301 

-301,317

231-235

23

5-6

313 

477 

476

483-484

34C

IE

16-17

215 

60-65 

56-5E

288

700-702 

433-434

546

223

490 

582

577-580 

5-8

345-348 

345-352

721
Page

Color............................... 22

Colorado River, at Hot Sulphur

Springs, Colo................. 34-36

at Lees Ferry, Ariz. .............. 173-176

below Cibola Valley, Ariz......... 215

below Colorado-Utah State line.... 53-55

below Hoover Dam, Ariz.-Nev....... 211

below Palo Verde Dam, Ariz.-Calif. 214 

below Parker Dam, Ariz.-Calif..... 212-213

near Cameo, Colo.................. 47-49

near Cisco, Utah.................. 60-65

near Glenwood Springs, Colo....... 41-43

near Grand Canyon, Ariz........... 187-192

Colorado River basin................ 34-263

Colorado-Utah State line, Colorado

River below................... 53-55

Colusa, Calif., Colusa Trough near.. 486 

Sacramento River at............... 482

Colusa Trough near Colusa, Calif.... 486

Composition of surface waters....... 11-26

Cooperation......................... 29-30

Copper.............................. 17

Corning, Calif., Thomes Creek near.. 474 

Cosumnes River at Michigan Bar,

Calif. ........................ 418-422

Cottonwood, Calif., Battle Creek

near.......................... 454-456

Cottonwood Creek near............. 449-453

South Fork Cottonwood Creek near.. 442-448 

Cottonwood Creek, at Hornbrook,

Calif......................... 663

Middle Fork, near Ono, Calif...... 438-440

near Cottonwood, Calif............ 449-453

near Ono, Calif................... 441

South Fork, near Cottonwood,

Calif....................... 442-448

Covelo, Calif., Black Butte River

near.......................... 610-614

Middle Fork Eel River near.... 609,615-619

Mill Creek near................... 621

Williams Creek near............... 620

Cow Creek near Millville, Calif..... 436-437

Coyote Creek near Madrone,

Calif......................... 354

Crater Lake near Crater Lake, Oreg.. 660 

Crescent City, Calif., Smith River

near.......................... 690-691

Crescent Mills, Calif., Indian

Creek near.................... 496-497

Crows Landing, Calif., San Joaquin

River near.................... 385

D

Delta, Calif., Sacramento River at.. 425-426 

Delta cross-channel near Walnut

Grove, Calif.................. 422

Delta-Mendota Canal, above Tracy 

pumping plant, near Tracy, 

Calif......................... 404

below Tracy pumping plant, near

Tracy, Calif................ 405-407

near Mendota, Calif............... 408

Dinsmores, Calif., Van Duzen River

near.......................... 646

Dissolved oxygen.................... 23

Dissolved solids.................... 16

Diversions and return flows at and

below Imperial Dam............ 258-261

Division of work.................... 30-31

Dolores River near Cisco, Utah...... 56-59

Dos Rios, Calif., Eel River above... 608 

Eel River below................... 710-711

Eel River near.................... 606

Middle Fork Eel River near........ 624-628

Douglas City, Calif., Weaver Creek

near.......................... 712-713

Dry Creek, near Cloverdale, Calif... 582 

near Geyserville, Calif........... 583-586

Dry Piney Creek near Big Piney,

Wyo........................... 69-71

Duchesne River near Randlett,

Utah.......................... 116-119

Eagle River at Gypsum, Colo......... 37-40

Eagle River basin................. 37-40,262

East Fork Carson River near

Gardnerville, Nev............. 298

East Fork Russian River, near

Calpella, Calif............... 568-570

near Ukiah, Calif................. 572-575

Eel River, above Dos Rios, Calif....

at Fort Seward, Calif.............

at McCann, Calif..................

at Scotia, Calif..................

below Dos Rios, Calif.............

below Scott Dam, near Potter

Valley, Calif...............

Middle Fork, above Black Butte

River, aear Covelo, Calif... 

beloi" BlacK Butte River, near

Covelo, Calif.............

near Dos Rios, Calif............

near Dos Rios, Calif ..............

South Fork, at Leggett, Calif.....

near Branscomb, Calif...........

near Miranda, Calif.............

Eel River basin............. 599-649

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

near Paskenta, Calif..............

Elk Creek near Hearst, Calif........

Emigration Creek near Salt Lake

City, Utah....................

Expression of results...............

Fair Oaks, Calif., American River

American River near.............

Farmington, N. Mex., Animas River

at.

San Juan River at............. 149

Feather River, at Nicolaus, Calif... 

at Oroville, Calif................

at Yuba City, Calif...............

below Shanghai Bend, near Yuba

City, Calif.................

Middle Fork, near Clio, Calif.....

near Merrimac, Calif ............

near Gridley, Calif...............

North Fork, at Pulga, Calif.......

South Fork, below Ponderosa Dam,

Calif.......................

West Branch, near Paradise, Calif, 

near Yankee Hill, Calif.........

Floriston, Calif., Truckee River at. 

Fluoride............................

Forest Glen, Calif., Mad River near. 

Fort Bragg, Calif., Middle Fork

Tenmile River near............

Noyo River near...................

Fort Jones, Calif., Scott River

near..........................

Fort Seward, Calif., Eel River at... 

Freeport, Calif., Sacramento River

at.

Fremont Ford Bridge, Calif., San

Joaquin River at..............

French Gulch, Calif., Clear Creek

at............................

Fruto, Calif., Stony Creek near.....

Frye Creek at Thatcher, Ariz........

Page

608 

629-632

633

641-645 

710-711

600-601 

609

615-619

624-628

606

638

634-637

639-640

,710-711

468

466-467 

622-623

285 

8-11

533

532

150-155 

,156-159 

526-527 

502-506 

511-518

524 

490

491-492 

507-510 

498-499

493-494

500

501

308-310

15

650-652

596 

594-595

667 

629-632

540-541 

383

700-702

478

228-230

Garcia River near Point Arena,

Calif......................... 591

Gardnerville, Nev., East Fork

Carson River near ............. 298

Gateway, Utah, Weber River at....... 275

Genesee, Calif., Little Grizzly

Creek near.................... 495

Georgetown, Calif., Canyon Creek

near.......................... 529

Gerber, Calif., Elder Creek at...... 468

Geyserville, Calif., Dry Creek near. 583-586 

Gila, N. Mex., Gila River near...... 216-220

Gila Gravity Main Canal at Imperial

Dam, Ariz.-Calif .............. 258

Gila River, at head of Safford ^

Valley, near Solomon, Ariz.... 224-227

at Kelvin, Ariz................... 243-248

below Gillespie Dam, Ariz......... 255-257

near Gila, N. Mex................. 216-220

Gila River basin................ 216-257,263

Gillespie Dam, Ariz., Gila River

below......................... 255-257

Glenwood, N. Mex., San Francisco

River near.................... 221-222

Glenwood Springs, Colo., Colorado

River near.................... 41-43

Roaring Fork River at............. 44-46

Goggin drain near Magna, Utah....... 290
INDEX 

Page

Grand Canyon, Ariz., Bright Angel

Creek near.................... 192

Colorado River near............... 187-192

Grand Junction, Colo., Gunnison

River near.................... 50-52

Granger, Wyo., Hams Fork near....... 87

Grant Line Canal at Tracy Road

Bridge, Calif................. 409

Grass Valley, Calif., South Yuba

River near.................... 521

Grayson, Calif., San Joaquin River

near.......................... 387

Great Salt Lake, Utah............... 264-270

Great Salt Lake basin............... 264-291

Green River, at Green River, Utah... 134-139 

near Green River, Wyo............. 76-82

near Greendale, Utah.............. 97-99

near Jensen, Utah................. 109-115

near La Barge, Wyo................ 72-75

near Ouray, Utah.................. 124-129

Green River, Utah, Green River at... 134-139 

San Rafael River near............. 140-043

Green River, Wyo., Green River

near.......................... 76-82

Green River basin................... 66-143

Greendale, Utah, Green River near... 97-99 

Greenfield, Calif., Arroyo Seco

near.......................... 333-336

Gridley, Calif., Feather River near. 507-510 

Guadalupe River basin............... 353

Guenoc, Calif., Putah Creek near.... 555-556

Guerneville, Calif., Russian River

near.......................... 587-590

Gunnison River hasin.............. 50-52,262

Gunnison River near Grand

Junction, Colo................ 50-52

Gypsum, Colo., Eagle River at....... 37-40

H

Hamburg, Calif., Klamath River near. 

Hamilton City, Calif., Sacramento

River near....................

Hams Fork near Granger, Wyo.........

Hardness............................

Hayfork Creek near Hyampom, Calif... 

Healdsburg, Calif., Russian River

near..........................

Hearst, Calif., Elk Creek near......

Helena, Calif., North Fork Trinity

River at......................

Henrys Fork at Linwood, Utah........

Hickman, Calif., Tuolumne River at.. 

Highland Creek below Highland Creek

Dam, near Kelseyville, Calif. . 

Honey Lake basin....................

Hoopa, Calif., Trinity River at.....

Hoover Dam, Ariz.-Nev., Colorado

River below...................

Lake Mead at......................

Hopland, Calif., Russian River

near..........................

Hornhrook, Calif., Cottonwood Creek

at.

Hot Sulphur Springs, Colo.,

Colorado River at.............

Humboldt-Carson Sink basin..........

Humboldt River, at Carlin, Nev......

near Rye Patch, Nev...............

Humboldt River hasin................

Huntington Lake, Calif., Big

Creek below...................

Hyampom, Calif., Hayfork Creek

near..........................

South Fork Trinity River below....

Hydrogen-ion concentration..........

I

666

475 

87

19-20 

676

580-581 

622-623

713-720

93-96

389

542-545

312

682-686

211 

208-211

663

34-36 

298-307 

302-304 

305-307 

302-307

379

676

677 

21-22

Igo, Calif., Clear Creek near....... 433-434

Imperial Dam, Ariz.-Calif., Gila

Gravity Main Canal at......... 258

Indian Creek near Crescent Mills,

Calif......................... 496-497

Indian Slough near Brentwood,

Calif......................... 410

Introduction........................ 1-5

Iodide.............................. 19

Iron................................ 12

Iron Gate Dam, Calif., Klamath

River below................... 661-662

Isabella Dam, Calif., Borel Canal

below......................... 368

723 

Page

Jenny Lind, Calif., Calaveras River

at............................ 402

Jensen, Utah, Green River near...... 109-115

Jordan River, at Cudahy Lane, near

289 

278-279

276

277 

283 

Jordan River basin.................. 276-291

Salt Lake City, Utah, 

at 5800 south, near Murray, Utah., 

at Narrows, near Lehi, Utah.......

at 9400 south, near South Jordan, 

Utah........................

at Salt Lake City, Utah.

Kaweah River, at Three Rivers,

Calif......................... 374-375

below Terminus Dam, Calif......... 376

Marble Fork, at Potwisha Camp,

Calif....................... 273

Kelseyville, Calif., Highland Creek

near.......................... 542-545

Kelvin, Ariz., Gila River at........ 243-248

Kennecott drain near Magna, Utah.... 291

Kern River, at Kernville, Calif..... 367

near Bakersfield, Calif........... 369

near Quaking Aspen Camp, Calif.... 365

Kern River Canal No. 3 near

Kernville, Calif.............. 366

Kernville, Calif., Kern River at.... 367

Kern River Canal No. 3 near....... 366

Keswick, Calif., Sacramento River at 432 

Kings River, above North Fork, near

Trimmer, Calif................ 377

at Peoples Weir, near Kingsburg,

Calif....................... 378

Kingshurg, Calif., Kings River near. 378 

Klamath, Calif., Blue Creek near.... 687

Klamath River near................ 688-689

Klamath River, at Klamath River

School near Hamburg, Calif.... 666

at Orleans, Calif................. 671-672

below Iron Gate Dam, Calif........ 661-662

near Klamath, Calif............... 688-689

near Seiad Valley, Calif.......... 668-669

Klamath River basin......... 660-689,712-720

Kneeland, Calif., Mad River near.... 653

Knights Ferry, Calif., Stanislaus

River near. ...^............... 393

Knights Landing, Cali'f., Sacramento

River at.......'............... 485

Sacramento Slough near............ 487

Knightsen, Calif., Rock Slough near. 411 

Kyburz, Calif., South Fork American

River near( .................... 529

La Barge, Wyo., Green River near.... 72-75 

Lake Mead at Hoover Dam, Ariz.-Nev.. 208-211 

Lake Mendocino near Ukiah, Calif.... 571 

Lake Pillsbury near Potter Valley,

Calif......................... 599

Lakeport, Calif., Clear Lake at..... 546

Lead................................ 18

Lees Ferry, Ariz., Colorado River at 173-176 

Paria River at.................... 177-181

Leggett, Calif., South Fork Eel

River at...................... 638

Lehi, Utah, Jordan River near....... 276

Lewiston, Calif., Trinity River at.. 673-674 

Likely, Calif., South Fork Pit River

near.......................... 427

Lily, Colo., Little Snake River

above......................... 105-108

Lily Creek near Pinecrest, Calif.... 388

Lindsay Slough near Rio Vista,

Calif.......... ............... 559

Linwood, Utah, Henrys Fork at....... 93-96

List of water-quality stations in

downstream order............. VII-XVII

Literature cited.................... 31-33

Lithium............................. 14

Little America, Wyo., Blacks Fork

near.......................... 88-92

Little Colorado River at Cameron,

Ariz.......................... 182-186

Little Cottonwood Creek near Salt

Lake City, Utah. .............. 280

Little Grizzly Creek near Genesee,

Calif......................... 495

Little Snake River, above Lily,

Colo.......................... 105-108

near Baggs, Wyo................... 104
Littlefield, Ariz., Virgin River at. 

Livermore, Calif., Arroyo Valle

near..........................

Lockwood, Calif., San Antonio River

near..........................

Longvale, Calif., Outlet Creek near, 

Los Banos, Calif., Salt Slough

near..........................

Los Gatos Creek at Los Gatos, Calif, 

Los Molinos, Calif., Antelope Creek

near..........................

Mill Creek near...................

Lotus, Calif., South Fork American

River near....................

Lower Lake, Calif., Cache Creek

near..........................

North Fork Cache Creek near.......

Lyman, Wyo., Blacks Fork near.......

Lynndyl, Utah, Sevier River near...,

M

McCann, Calif., Eel River at........

McCloud River above Shasta Lake,

Calif.........................

Mad River, near Arcata, Calif.......

near Forest Glen, Calif...........

near Kneeland, Calif..............

Mad River basin.....................

Madrone, Calif., Coyote Creek near.. 

Magna, Utah, Goggin drain near......

Kennecott drain near..............

Magnesium...........................

Mandeville Island, Calif., Old

River at......................

Manganese...........................

Marble Fork Kaweah River at

Potwisha Camp, Calif..........

Marysvale, Utah, Sevier River near.. 

Marysville, Calif., Yuba River at... 

Mattole River near Petrolia, Calif.. 

Maybell, Colo., Yampa River near....

Mendota, Calif., Delta-Mendota

Canal anear...................

San Joaquin River near............

Merced River, at Happy Isles Bridge, 

near Yosemite, Calif..........

near Stevinson, Calif.............

Merrimac, Calif., Middle Fork

Feather River near............

Michigan Bar, Calif., Cosumnes

River at......................

Middle Fork Cottonwood Creek near

Ono, Calif ....................

Middle Fork Eel River, above Black 

Butte River, near Covelo, 

Calif.........................

below Black Butte River, near

Covelo, Calif...............

near Dos Rios, Calif..............

Middle Fork Feather River, near

Clio, Calif...................

near Merrimac, Calif..............

Middle Fork Stanislaus River at

Hells Half Acre Bridge, near 

Pinecrest, Calif..............

Middle Fork Tenmile River near

Fort Bragg, Calif.............

Middle River, Calif., Old River

near..........................

Middle Yuba River above Oregon

Creek, near North San Juan, 

Calif.........................

Mill Creek, at mouth, near Los

Molinos, Calif................

near Covelo, Calif................

near Salt Lake City, Utah.........

Millville, Calif., Cow Creek near... 

South Cow Creek near..............

Mineral constituents in solution....

Miranda, Calif., South Fork Eel

River near....................

Miscellaneous analyses of streams,

in Colorado River basin.......

in Pacific slope basins in

California..................

in The Great Basin................

Modesto, Calif., San Joaquin River 

near..........................

Tuolumne River at.................

Mojave River basin..................

Mokelunme Hill, Calif., Mokelumne

River near....................

Page 

201-207 

355-359

328-331 

607

382

353

465

469

530-531

547

548-549

83-86

293-295

833

431

654-658 

650-652

653 

650-658

354

290

291

13

412 

12-13

373 

292

522-523 

597-598 

100-103

408

382

384

385

491-492 

418-422 

438-440

609

615-619 

624-628

490 

491-492

392

596

411

519

469 

621 

282

436-437

435

12-19

639-640 

262-263

692-720 

314-318

391

390

318

Mokelumne River, at Woodbridge,

Calif.........................

below Camanche Dam, Calif.........

near Mokelumne Hill, Calif........

Montgomery Creek, Calif., Pit

River near....................

Morgan Hill, Calif., Uvas Creek

near..........................

Mossdale, Calif., San Joaquin River

near..........................

Mount Shasta, Calif., Sacramento

River near....................

Murray, Utah, Jordan River near..,..

N

Nacimiento River, below Nacimiento

Dam, near Bradley, Calif.....

near Bryson, Calif...............

Napa River near St. Helena, Calif..

Navarro River near Navarro, Calif..

New Fork River near Big Piney, Wyo.

New Hogan Dam, Calif., Calaveras

River above..................

Nickel and cobalt..................

Nicolaus, Calif., Feather River

at.

Niles, Calif., Alameda Creek near.. 

Nitrate............................

North Fork American River at

North Fork Dam, Calif........

North Fork Cache Creek near Lower

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

North Fork Dam, Calif., North Fork

American River at............

North Fork Feather River at

Pulga, Calif.................

North Fork Trinity River at Helena,

Calif........................

North San Juan, Calif., Middle

Yuba River near..............

Oregon Creek near................

Noyo River near Fort Bragg, Calif..

Old River, at Clifton Court Ferry,

near Bethany, Calif...........

at Mandeville Island, Calif.......

at Orwood Bridge, near Middle

River, Calif................

at south tip of Fabian Tract,

near Tracy, Calif...........

Ono, Calif., Cottonwood Creek near.. 

Middle Fork Cottonwood Creek near. 

Oregon Creek near North San Juan,

Calif.........................

Organics............................

Orick, Calif., Redwood Creek at.....

Orland, Calif., Stony Creek near....

Orleans, Calif., Klamath River at... 

Oroville, Calif., Feather River at.. 

Ouray, Utah, Green River near.......

Outlet Creek near Longvale, Calif... 

Oxygen consumed....................

Pacific slope basins in California.. 

Pajaro River at Chittenden, Calif... 

Pajaro River basin..................

Palo Verde Dam, Ariz.-Calif.,

Colorado River below..........

Paradise, Calif., West Branch

Feather River near............

Paria River at Lees Ferry, Ariz.....

Parker Dam, Ariz.-Calif., Colorado

River below...................

Parleys Creek at Suicide Rock, near

Salt Lake City, Utah..........

Paskenta, Calif., Elder Creek near., 

Thomes Creek at...................

Paso Robles, Calif., Salinas River

at.

Patterson, Calif., San Joaquin

River near................

Paynes Creek near Red Bluff,

Calif.....................

Pescadero Creek near Pescadero,

Calif.....................

Petrolia, Calif., Mattole River

near......................

Phosphate.......................

416-417

414-415

413

430

338

399

424 

278-279

327

323-326

561-562

592-593

66-68

400

17

526-527

360-364

15-16

528 

548-549

528

498-499 

713-720

519

520 

594-595

409

412

403

441

438-440

520

23-24

659

479

671-672

502-506

124-129

607

23

319-720

340

338-340

500 

177-181

284

466-467 

470-474

322

386

458

344

597-598 

16
Pinecrest, Calif., Lily Creek near..

Middle Fork Stanislaus River near.

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

near Montgomery Creek, Calif......

South Fork, near Likely, Calif....

Pleyto, Calif., San Antonio River

at............................

Point Arena, Calif., Garcia River

near..........................

Ponderosa Dam, Calif., South Fork

Feather River below...........

Portola, Calif., Big Grizzly Creek

near..........................

Potter Valley, Calif., Eel River

near..........................

Lake Pillsbury near...............

Potter Valley powerhouse tailrace

near Potter Valley, Calif..... 

Potwisha Camp, Calif., Marble Fork

Kaweah River at...............

Prather, Calif., San Joaquin River

near..........................

Preface.............................

Preston, Idaho, Bear River near.....

Price River at Woodside, Utah.......

Properties and characteristics of

water.........................

Publications........................

Pulga, Calif., North Fork Feather

River at......................

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

near Winters, Calif...............

Pyramid and Winnemucca Lakes

has in..................... 308

Quaking Aspen Camp, Calif., 

River near...........

Page

388 

392

428-429 

430 

427

331 

591

493-494 

488-489

600-601 

599

602-606 

373

381 

III 

274 

130-133

19-26 

27-29

498-499 

555-556 

557-558

-311,317

R

Randlett, Utah, Duchesne River

near..........................

Red Bank Creek, at Rawson Road

Bridge, near Red Bluff, Calif, 

near Red Bluff, Calif .............

Red Bluff, Calif., Antelope Creek

near..........................

Paynes Creek near.................

Red Bank Creek near........... 463,

Sacramento River at...............

Sacramento River near.............

Red Butte Creek at Fort Douglas,

near Salt Lake City, Utah.....

Redwood Creek at Orick, Calif.......

Rindge Tract, Calif., Stockton

Ship Channel on...............

Rio Vista, Calif., Lindsay Slough

near..........................

Sacramento River near.............

Ripon, Calif., Stanislaus River

near..........................

Roaring Fork River at Glenwood

Springs, Colo.................

Rock Slough near Knightsen, Calif... 

Round Mountain, Nev., South Twin

River near....................

Russian River, East Fork, near

Caipella, Calif...............

East Fork, near Ukiah, Calif......

near Cloverdale, Calif............

near Guerneville, Calif...........

near Healdsburg, Calif............

near Hopland, Calif...............

near Ukiah, Calif.................

Russian River basin............. 564-

Rumsey, Calif., Cache Creek above... 

Rye Patch, Nev., Humboldt River

near..........................

Sacramento, Calif., American River

703-704

463

464

458

703-704 

460-463

459

286-287 

659

559

560

44-46 

411

296

568-570 

572-575 

577-580 

587-590 

580-581 

575-576 

564-567 

 590,709 

550-553

305-307

at. 534 

Sacramento River at............... 535-539

Sacramento River, above Colusa

trough, at Knights Landing,

Calif......................... 485

at Bend, Calif.................... 457

at Butte City, Calif.............. 480-481

at Colusa, Calif.................. 482

at Delta, Calif................... 425-426

Page

Sacramento River, at Freeport,

Calif......................... 540-541

at Keswick, Calif................. 432

at Red Bluff, Calif............... 460-463

at Sacramento, Calif.............. 535-539

near Hamilton City, Calif......... 475

near Mount Shasta, Calif.......... 424

near Red Bluff, Calif............. 459

near Rio Vista, Calif............. 560

Sacramento River basin.. 424-560,694,700-709 

Sacramento Slough near Knights

Landing, Calif................ 487

St. Helena, Calif., Napa River

near.......................... 561-562

Salinas River, at Paso Robles,

Calif. ........................ 322

near Bradley, Calif ............... 332

near Spreckles, Calif............. 337

Salinas River basin................. 322-337

Salmon Creek at Bodega, Calif....... 563

Salmon River at Somesbar, Calif..... 670

Salt Lake City, Utah, Big

Cottonwood Creek near......... 281

City Creek near................... 288

Emigration Creek near............. 285

Jordan River at................... 283

Jordan River near................. 289

Little Cottonwood Creek near...... 280

Mill Creek near................... 282

Parleys Crejk near................ 284

Red Butte Creek near.............. 286-287

Salt River below Stewart Mountain

Dam, Ariz..................... 249-251

Salt Slough near Los Banos, Calif... 382 

Salyer, Calif., South Fork

Trinity River near............ 678-681

San Antonio River, at Pleyto,

Calif......................... 331

near Lockwood, Calif.............. 328-331

San Benito River near Willow Creek

School, Calif................. 339

San Francisco River, at Clifton,

Ariz.......................... 223

near Glenwood, N. Mex............. 221-222

San Joaquin River, at Antioch,

Calif......................... 423

at Freraont Ford Bridge, Calif..... 383

at Garwood Bridge, near Stockton,

Calif....................... 399

at Haze Road Bridge, near

Modesto, Calif.............. 391

at Mossdale, Calif................ 399

San Joaquin River, below Kerckhoff 

Powerhouse, near Prather, 

Calif......................... 381

near Crows Landing, Calif ......... 385

near Grayson, Calif............... 387

near Mendota, Calif ............... 382

near Patterson, Calif............. 386

near Vernalis, Calif.............. 395-398

San Joaquin River basin. 379-423,693-694,699 

San Juan River, above Animas River,

at Farmington, N. Mex......... 149

at Farmington, N. Mex............. 156-159

at Shiprock, N. Mex............... 160-165

near Archuleta, N. Mex............ 147-149

near Bluff, Utah.................. 166-172

San Juan River basin................ 144-172

San Lorenzo River at Big Trees,

Calif......................... 342-343

San Pedro River, at Charleston,

Ariz.......................... 231-235

at Winkelman, Ariz................ 239-242

near Winkelman, Ariz.............. 236-238

San Rafael River near Green River,

Utah.......................... 140-143

Santa Clara River above Winsor Dam,

near Santa Clara, Utah........ 197-200

Santa Clara River basin......... 319,696-699

Scotia, Calif., Eel River at........ 641-645

Scott River near Fort Jones,

Calif......................... 667

Sediment............................ 6-8,26

Seiad Valley, Calif., Klamath River

near.......................... 668-669

Sespe Creek near Wheeler Springs,

Calif......................... 319

Sevier Lake basin................... 292-295

Sevier River, below Piute Dam, near

Marysvale, Utah............... 292

near Lynndyl, Utah................ 293-295

Shasta Lake, Calif., McCloud River

above......................... 431