Quality of

Surface Waters of the 

United States 

1952

Parts 9-14. Colorado River Basin to Pacific 

Slope Basins in Oregon and Lower Columbia 

River Basin

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1253

Prepared in cooperation with the States of 

California and Utah, U. S. Bureau of 

Reclamation, and with other agencies
Quality of

Surface Waters of the 

United States 

1952

Parts 9-14. Colorado River Basin to Pacific 

Slope Basins in Oregon and Lower Columbia 

River Basin

Prepared under the direction of S. K. LOVE, Chief, Quality of Water Branch 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1253

Prepared in cooperation with the States of 

California and Utah, U. S. Bureau of 

Reclamation, and with other agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1957
UNITED STATES DEPARTMENT OF THE INTERIOR 

Fred A. Sea ton, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

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

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

This report was prepared by the Geological Survey in cooperation with the States of California and Utah, U. S. Bureau of Reclamation and other agencies by personnel of the Water Resources 

Division under the direction of:

C. G. Pauls en........... Chief Hydraulic Engineer

S. K. Love......... Chief, Quality of Water Branch

J. D. Hem, district chemist. .Albuquerque, N. Mex.

C. S. Howard, regional chemist. .Salt Lake City, Utah

I. W. Walling, district chemist. .Sacramento, Calif.

Ill
CONTENTS

Page 

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

Collection and examination of samples ...................... 3

Chemical quality ........................................ 3

Suspended sediment ..................................... 4

Temperature ........................................... 5

Expression of results ..................................... 6

Composition of surface waters ............................. 7

Mineral constituents in solution........................... 8

Silica ................................................ 8

Aluminum ............................................ 8

Manganese ........................................... 9

Iron ................................................. 9

Calcium ............................................. 9

Magnesium ........................................... 9

Sodium and potassium.................................. 10

Carbonate and bicarbonate ............................. 10

Sulfate ............................................... 10

Chloride ............................................. 10

Fluoride ............................................. 11

Nitrate............................................... 11

Boron................................................ 11

Dissolved solids ...................................... 12

Properties and characteristics of water.................... 12

Oxygen consumed ..................................... 12

Color ................................................ 12

Hydrogen-ion concentration............................. 12

Specific conductance................................... 13

Hardness............................................. 13

Total acidity.......................................... 13

Corrosiveness ........................................ 14

Percent sodium ....................................... 14

Sodium-adsorption-ratio ............................... 14

Sediment ............................................... 15

Publications.............................................. 15

Cooperation.............................................. 17

Division of work.......................................... 17

Stream flow.............................................. 19

Literature cited .......................................... 19

Chemical analyses, water temperatures, and suspended

sediment .......................................... 21

Part 9-Colorado River basin.............................. 21

Colorado River at Hot Sulphur Springs, Colo. (main

stem).............................................. 21

V
VI CONTENTS

Chemical analyses, etc. --Continued 

Colorado River basin--Continued Page

Eagle River basin .................................... 24

Eagle River at Gypsum, Colo ........................ 24

Colorado River near Glenwood Springs, Colo. (main

stem)............................................. 27

Colorado River near Cameo, Colo. (main stem).......... 30

Gunnison River basin ................................. 33

Gunnison River near Grand Junction, Colo............ 33

Dolores River basin .................................. 36

Dolores River at Gateway, Colo...................... 36

Dolores River near Cisco, Utah ..................... 39

Colorado River near Cisco, Utah (main stem) ........... 45

Green River basin .................................... 51

Green River near Green River, Wyo ................. 51

Blacks Fork near Green River, Wyo.................. 57

Henrys Fork at Linwood, Utah....................... 60

Yampa River near Maybell, Colo..................... 63

Little Snake River near Lily, Colo................... 69

Green River at Jensen, Utah ........................ 71

Green River near Jensen, Utah ...................... 74

White River near Watson, Utah ...................... 78

Green River near Ouray, Utah ...................... 81

Willow Creek near Ouray, Utah...................... 86

Price River at Woodside, Utah ...................... 89

Green River at Green River, Utah ................... 92

San Rafael River near Green River, Utah ............. 99

Miscellaneous analyses of streams in Green River 

basin in Utah...................................... 106

Dirty Devil River basin ............................... 107

Dirty Devil River near Kite, Utah.................... 107

Colorado River at Kite, Utah (main stem)............... 110

Escalante River basin................................. 117

Escalante River at mouth near Escalante, Utah........ 117

San Juan River basin ................................. 120

San Juan River near Blanco, N. Mex ................. 120

Animas River at Farmington, N. Mex ................ 127

San Juan River at Shiprock, N. Mex.................. 133

San Juan River near Bluff, Utah ..................... 138

Colorado River at Lees Ferry, Ariz. (main stem) ....... 144

Paria River basin .................................... 153

Paria River at Lees Ferry, Ariz .............. ...... 153

Little Colorado River basin............................ 156

Little Colorado River at Woodruff, Ariz .............. 156

Little Colorado River at Cameron, Ariz .............. 163

Colorado River near Grand Canyon, Ariz. (main stem)... 165

Bright Angel Creek basin.............................. 172

Miscellaneous analyses of streams in Bright Angel 

Creek basin in Ariz ............................... 172
CONTENTS VII

Chemical analyses, etc.--Continued

Colorado River basin--Continued Page 

Virgin River basin ................................... 173

Virgin River at Virgin, Utah ........................ 173

Washington Fields Canal near Washington, Utah ....... 176

Santa Clara River above Winsor Dam, near Santa 

Clara, Utah....................................... 177

Santa Clara River at St. George, Utah ............... 178

Virgin River near St. George, Utah .................. 179

Virgin River at Littlefield, Ariz,..................... 180

Lake Mead near Boulder City, Nev. (main stem) ........ 187

Colorado River below Hoover Dam, Ariz. -Nev. (main

stem)............................................. 196

Colorado River near Topock, Ariz. (main stem) ......... 199

Miscellaneous analyses of streams in Virgin River 

basin in Utah...................................... 200

Gila River basin...................................... 201

Gila River at Kelvin, Ariz........................... 201

Salt River at Stewart Mountain Dam, Ariz............. 204

Verde River below Bartlett Dam, Ariz................ 207

Agua Fria River below Lake Pleasant Dam, Ariz ...... 210

Gila River below Gillespie Dam, Ariz................. 213

Colorado River at Yuma, Ariz. (main stem)............. 216

Diversions and return flow at and below Imperial Dam ... 217 

Yuma Main Canal below Colorado River siphon, at 

Yuma, Ariz....................................... 217

Part 10. The Great Basin .............................. 219

Sevier Lake basin.................................... 219

Sevier River near Lynndyl, Utah..................... 219

Humboldt River basin................................. 222

Humboldt River near Rye Patch, Nev. ................ 222

Pyramid and Winnemucca Lakes basin.................. 225

Miscellaneous analyses of streams in Pyramid and 

Winnemucca Lakes basin in Calfornia................ 225

Honey Lake basin..................................... 226

Miscellaneous analyses of streams in Honey Lake 

basin in California................................. 226

Eagle Lake basin..................................... 226

Miscellaneous analyses of Eagle Lake in California .... 226

Part 11. Pacific Slope basins in California............... 227

Carmel River basin .................................. 227

Miscellaneous analyses of Streams in Carmel 

River basin in Calif................................ 227

Salinas River basin................................... 227

Miscellaneous analyses of streams in Salinas River 

basin in Calif...................................... 227

Pajaro River basin ................................... 228

Miscellaneous analyses of streams in Pajaro River 

basin in Calif...................................... 228
VIII CONTENTS

Chemical analyses, etc. --Continued

Pacific Slope basins in California--Continued Page 

Sequel Creek basin ................................... 228

Miscellaneous analyses of streams in Soquel Creek 

basin in Calif...................................... 228

San Lorenzo River basin .............................. 229

Miscellaneous analyses of streams in San Lorenzo 

River basin in Calif. ............................... 229

Guadalupe River basin ................................ 229

Miscellaneous analyses of streams in Guadalupe River 

basin in Calif...................................... 229

Coyote Creek basin................................... 229

Miscellaneous analyses of streams in Coyote Creek 

basin in Calif...................................... 229

Alameda Creek basin ................................. 230

Miscellaneous analyses of streams in Alameda Creek 

basin in Calif...................................... 230

Kern River basin..................................... 230

Miscellaneous analyses of streams in Kern River 

basin in Calif...................................... 230

Tulare Lake basin.................................... 231

Miscellaneous analyses of streams in Tulare Lake 

basin in Calif...................................... 231

San Joaquin River basin............................... 232

San Joaquin River near Vernalis, Calif................ 232

Stockton Diverting Canal at Stockton, Calif. ........... 235

Mokelumne River at Woodbridge, Calif ............... 237

Miscellaneous analyses of streams in San Joaquin 

River basin in Calif. ............................... 240

Sacramento River basin............................... 245

Sacramento River at Delta, Calif..................... 245

Pit River near Montgomery Creek, Calif.............. 246

Squaw Creek above Shasta Lake, Calif................ 247

McCloud River above Shasta Lake, Calif.............. 248

Sacramento River at Knights Landing, Calif........... 249

Feather River at Nicolaus, Calif..................... 252

American River at Fair Oaks, Calif. ................. 255

Miscellaneous analyses of streams in Sacramento 

River basin in Calif................................ 258

Napa River basin..................................... 265

Miscellaneous analyses of streams in Napa River 

basin in Calif...................................... 265

Russian River basin .................................. 265

Miscellaneous analyses of streams in Russian River 

basin in Calif...................................... 265

Eel River basin ...................................... 267

Miscellaneous analyses of streams in the Eel River 

basin in Calif...................................... 267

Klamath River basin.................................. 268
CONTENTS IX

Chemical analyses, etc. --Continued 

Pacific Slope basins in California--Continued

Klamath River basin--Continued Page 

Miscellaneous analyses of Streams in Klamath 

River basin in Calif................................ 268

Trinity River at Lewiston, Calif ..................... 270

Smith River basin .................................... 271

Miscellaneous analyses of streams in Smith River 

basin in Calif ..................................... 271

Part 12. Pacific Slope basins in Washington and Upper

Columbia River basin .............................. 272

Pacific Slope basins north of Columbia River ............ 272

Willapa River basin .................................. 272

Willapa River at Lebam, Wash ...................... 272

Chehalis River basin ................................. 273

Chehalis River near Grand Mound, Wash ............. 273

Nisqually River basin ................................ 274

Nisqually River near National, Wash ................. 274

Mineral Creek near Mineral, Wash .................. 275

Duwamish River basin ................................ 277

Green River near Palmer, Wash..................... 277

Green River near Auburn, Wash ..................... 281

Stillaguamish River basin ............................. 282

Jim Creek near Arlington, Wash..................... 282

North Fork Stillaguamish River near Darrington, Wash. 283 

Pilchuck Creek near Bryant, Wash................... 284

Skagit River basin.................................... 285

Cascade River at Marblemount, Wash ................ 285

Upper Columbia River basin............................ 286

Columbia River at international boundary (main stem) .... 286

Columbia River at Grand Coulee Dam, Wash ......... .. 289

Miscellaneous analyses of streams in Columbia River

basin in Wash, (main stem) ......................... 292

Part 13. Snake River basin ............................. 293

Snake River at King Hill, Idaho (main stem)............. 293

Boise River basin .................................... 296

Boise River at Notus, Idaho ......................... 296

Snake River near Clarkston, Wash, (main stem) ......... 299

Miscellaneous analyses of streams in Snake River basin

in Idaho........................................... 302

Part 14. Pacific Slope basins in Oregon and Lower

Columbia River basin .............................. 303

John Day River basin ................................. 303

South Fork John Day River near Dayville, Oreg ....... 303

Desolation Creek near Dale, Oreg.................... 304

Deschutes River basin ................................ 305

Crooked River near Culver, Oreg.................... 305

Metolius River near Grandview, Oreg ................ 306

Deschutes River near Madras, Oreg.................. 307
X CONTENTS

Chemical analyses, etc. --Continued 

Pacific Slope basins in Oregon and Lower Columbia River 

basin--Continued

Deschutes River basin--Continued Page 

Warm Springs River at Hehe Mill near Warm Springs, 

Oreg ............................................. 308

Columbia River at Maryhill Ferry near Rufus, Oreg.

(main stem)....................................... 309

Klickitat River basin ................................. 312

Klickitat River near Glenwood, Wash................. 312

Klickitat River near Pitt, Wash...................... 313

Hood River basin..................................... 314

Green Point Creek below North Fork near Dee, Oreg... 314

Sandy River basin .................................... 313

Bull Run River at Bull Run, Oreg .................... 315

Willamette River basin ............................... 316

Middle Fork Willamette River below North Fork near 

Oakridge, Oreg.................................... 316

Middle Fork Willamette River at Lowell, Oreg. ....... 317

Fall Creek below Winberry Creek near Fall Creek, 

Oreg ............................................. 318

Lookout Creek near Blue River, Oreg ................ 319

North Santiam River below Boulder Creek near 

Detroit, Oreg...................................... 320

Breitenbush River above Canyon Creek near Detroit, 

Oreg ............................................. 321

Willamette River at Salem, Oreg..................... 322

Lewis River basin.................................... 325

Lewis River at Ariel, Wash ......................... 325

East Fork Lewis River near Heisson, Wash. .......... 326

Cowlitz River basin .................................. 327

Cispus River near Randle, Wash..................... 327

Rainy Creek near Kosmos, Wash..................... 328

West Fork Tilton River near Morton, Wash ........... 329

Cowlitz River near Mayfield, Wash................... 330

Toutle River near Silver Lake, Wash................. 331

Cowlitz River at Castle Rock, Wash.................. 332

Coweman River near Kelso, Wash ................... 333

Abernethy Creek basin................................ 334

Abernethy Creek near Longview, Wash ............... 334

Clatskanie River basin................................ 335

Clatskanie River near Clatskanie, Oreg .............. 335

Elokomin River basin................................. 336

Elokomin River near Cathlamet, Wash ............... 336

Big Creek basin...................................... 337

Big Creek near Knappa, Oreg........................ 337

Grays River basin ................................... 338

West Branch Grays River near Grays River, Wash..... 338
CONTENTS XI

Chemical analyses, etc. Continued 

Pacific Slope basins in Oregon and Lower Columbia River

basin Continued Page 

Youngs River basin................................... 339

North Fork Klaskanine River near Olney, Oreg........ 339

Index................................................... 341

ILLUSTRATION

 Page 

Figure 1. Map of the United States showing basins covered 

by the four water-supply papers on quality of surface 

waters in 1952 ..................................... 2
QUALITY OF SURFACE WATERS 

OF THE UNITED STATES, 1952

PARTS 9-14 

INTRODUCTION

The quality-of-water investigations of the United States Geological Survey are concerned with chemical and physical charac - 

teristics of the surface and ground water supplies of the Nation. 

Most of the investigations carried on in cooperation with States 

and other Federal agencies deal with the amounts of matter in 

solution and in suspension in streams.

The records of chemical analysis, suspended sediment, and 

temperature for surface waters given in this volume serve as a 

basis for determining the suitability of the waters examined for 

industrial, agricultural, and domestic uses insofar as such use 

is affected by the dissolved or suspended mineral matter in the 

waters. The discharge of a stream and, to a lesser extent, the 

chemical quality are related to variations in rainfall and other 

forms of precipitation. In general, lower concentrations of dissolved solids may be expected during the periods of high flow than 

during periods of low flow. The concentration in some streams 

may change materially with relatively small variations in flow, 

whereas for other streams the quality may remain relatively 

uniform throughout large ranges in discharge. The quantities 

of suspended sediment carried by streams are also related to 

discharge, and during flood periods the sediment concentrations 

in many streams vary over wide ranges.

The regular yearly publication of records of chemical analyses, suspended sediment, and water temperature was begun by 

the Geological Survey in 1941. The annual records prior to 1948 

were published in a single volume for the entire country. Beginning in 1948, the records were published in two volumes, and 

beginning in 1950, in four volumes, covering the drainage basins 

shown in figure 1. The samples for which data are given were 

collected from October 1, 1951, to September 30, 1952. Descriptive statements are given for each sampling station for which 

regular series of chemical analyses or sediment determinations 

have been made. These statements include the location of the 

stream-sampling station, drainage area, length of time for which 

records are available, extremes of dissolved solids, hard - 

ness, sediment loads, water temperature, and other pertinent 

data. Records of water discharge of the streams at, or near, 

the sampling point for the sampling period are included in most 

tables of analyses. The records are arranged by drainage basins, according to Geological Survey practice in reporting records of stream flow.

1
QUALITY OF SURFACE WATERS, 1952

Parts 1-4; WSP 1250 

Parts 5-6; WSP 1251 

Parts 7-8;WSP 1252

Figure 1. Map of the United States showing basins covered 

by the four water-supply papers on quality of surface waters 

in 1952. The shaded portion represents the section of the 

country covered by this volume; the unshaded portion represents the section of the country covered by other watersupply papers.

Beginning with the series of reports for the water year ending September 30, 1951, the order of listing station records has 

been changed. In this report, stations on tributary streams are 

listed between stations on the main stream in the order in which 

those tributaries enter the main stem. Stations on tributaries to 

tributaries are inserted in a similar manner.

During the year ended September 30, 1952, 63 regular sampling stations on 21 streams for the study of the chemical character of surface waters were maintained by the Geological Survey in the area covered by this volume. Samples were collected 

less frequently during the year at many other points. Water temperatures were measured daily at 103of the regular sampling stations. Not all analyses of samples of surface water collected 

during the year have been included. Single analyses of an incomplete nature generally have been omitted. Also, determinations 

made on the daily samples before compositing have not been reported. Specific conductance was usually determined on each 

daily sample, and pH, chloride, or other determinations were 

also made on many of the daily samples. As noted in the table 

headings these data are available for reference at the district offices listed under Division of Work, on pages

Quantities of suspended sediment are reported for 18 stations during the year ended September 30, 1952. The sediment 

samples were collected one or more times daily at most sta - 

tions, depending on the rate of flow and changes in stage of the
COLLECTION AND EXAMINATION OF SAMPLES 3

stream. Sediment samples were collected less frequently during the year at many other points. In connection with measurements of sediment discharge, sizes of sediment particles were 

determined at 18 of the stations. As noted under "Remarks" in 

the table headings, suspended-sediment concentrations also were 

determined from the samples collected for chemical analysis in 

some parts of the country. The data do not provide a reliable 

basis for computing the loads of suspended sediment carried by 

the stream but may be of value for design and operation of filtration plants utilizing these stream waters. Records of these infrequent determinations are available for reference in the district 

offices listed.

Material which is transported essentially in continuous contact 

with the stream bed is termed bed load and is not considered in 

this report. All other undissolved material in transport is termed suspended sediment and generally constitutes the major part 

of the total sediment load. At the present time no reliable method has been developed for deter mining bed load on a routine basis.

COLLECTION AND EXAMINATION OF SAMPLES 

CHEMICAL QUALITY

Samples for chemical analysis were usually collected daily 

at, or near, points on streams where gaging stations are maintained for measurement of water discharge. Most of the analyses were made on 10-day composites of daily samples collected 

for a period of a year at each sampling point. Three composite 

samples were usually prepared each month by mixing together 

equal volumes of daily samples collected from the 1st to the 10th, 

from the llth to the 20th, and during the remainder of the month. 

For some streams that are subject to sudden and large changes 

in chemical composition or concentration, samples were composited for shorter periods on the basis of the concentration of 

dissolved solids indicated by measurements of specific conductance of the daily samples.

The samples were analyzed according to methods regularly 

used by the Geological Survey. These methods are essentially 

the same as or are modifications of methods described in recognized authoritative publications for the mineral analysis of water 

samples (Collins, 1928; Am. Public Health Assoc., 1946).

For those waters containing moderately large quantities of 

soluble salts, the value reported for dissolved solids is the sum 

of the quantities of the various determined constituents using the 

carbonate equivalent of the reported bicarbonate. In other analyses the value reported as dissolved solids is the residue on evaporation after drying at 180°C for 1 hour. Specific conductance 

is givenfor most analyses and was determined by means of a conductance bridge using a standard potassium chloride solution as 

reference.
QUALITY OF SURFACE WATERS, 1952

SUSPENDED SEDIMENT

In general, samples were collected daily with the. US D-43 

depth-integrating sampler (U. S. Inter-agency, 1948, p. 70-76) 

from a fixed sampling point at one vertical in the cross section. 

The US DH-48 hand sampler was used at many stations during 

periods of low flow. Suspended-sediment samples, consisting 

of depth-integrated samples at three or more verticals in the cross 

section were made periodically to determine the cross-sectional 

distribution of the suspended concentration with respect to that at 

the daily sampling vertical. In streams where comparatively rapid fluctuations in transverse distribution of water discharge or 

sediment concentration are encountered at the sampling point, 

samples were taken regularly at two or more verticals to determine the average concentration across the section. During periods of high flow, samples were taken two or more times throughout the day at many sampling stations, and during periods of rapidly changing flow samples were taken hourly at some stations.

Sediment concentrations were determined by filtration or evaporation of the samples as required. At many stations the mean 

daily concentration for some days was obtained by plotting the 

instantaneous concentrations on the original or copies of the original gage-height chart. The plotted concentrations adjusted, if 

necessary, for cross-sectional distribution with respect to that 

at the daily sampling vertical, were connected or averaged by 

continuous curves to obtain a concentration graph. This graph 

represented the estimated concentration at any time and, for most 

periods, mean daily concentrations were determined from the 

graph. When the concentration and water discharge were changing rapidly, the day was often subdivided for this computation. 

For some periods when the day-to-day variation in the concentration was negligible, the data were not plotted, and the average 

concentration of the samples was used as the mean concentration 

for the day. For certain stations, when the discharge and sediment concentrations were relatively low and varied only slightly 

from day to day, the samples for a number of days were composited and the mean daily concentrations and mean daily loads are 

shown.

For some periods when no samples were collected, daily sediment loads were estimated on the basis of water discharge, sediment concentrations observed immediately preceding and following the periods, and 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 sediment loads for individual days are not estimated, as numerous factors influencing the quantities of transported sediment made it very difficult to make accurate estimates 

of sediment loads for individual days. However, estimated sedi-
COLLECTION AND EXAMINATION OF SAMPLES 5

ment loads for missing days in an otherwise continuous period 

of. sampling have been included in monthly and annual totals for 

most streams to provide a complete record.

In addition to the records of total quantities of sediment, records of the particle sizes of sediment are included also. The 

particle sizes of the suspended sediments were determined periodically for many of the stations. As much of the material carried .in suspension can pass through the finest sieves, the bottomwithdrawal tube method (U. S. Inter-agency, 1943, p. 82-90) 

was used in most of the analyses. Generally, sieves were used 

in the determination of particle sizes for sediments which were 

predominantly coarser than 0. 062 mm. Size distribution for some 

sediments was determined by a combination of sieves and pipette 

methods in which the size fraction 0.062 mm and larger was analyzed by sieves and that smaller than 0. 062 mm was analyzed 

by the pipette method (Kilmer and Alexander, 1949). Native or 

distilled water, as noted in the tables of analyses, was used as 

the settling medium. In some instances, chemical dispersing 

agents were added to the settling medium. As settling diameters 

of the clay and colloidal fractions are often affected by the chemical character of the settling medium, analyses made using native water may more nearly simulate particle sizes existing in 

the stream. Results of analyses using distilled water or using a 

settling medium containing dispersing agents approximate ultimate particle sizes of the finer fractions. The concentration of 

sediment suspension for analysis was reduced to less than 5,000 

parts per million, where necessary, by means of a sample splitter, in order to stay within limits recommended for the bottom - 

withdrawal tube or pipette method. The concentration of suspended sediment used in the bottom-withdrawal tube or pipette cylinder was often different from the concentration in the original 

suspension. The concentration at which analyses were made is 

indicated in the appropriate tables.

TEMPERATURE

For most of the stations, daily water temperatures were obtained at the time that the chemical quality or sediment samples 

were collected. So far as practicable the water temperatures 

were observed at about the same time each day for an individual 

river station in order that the data would be relatively unaffected by diurnal variations in temperature. For most large, swiftly flowing streams the diurnal variation in water temperature 

is probably small, but for sluggish or shallow streams the daily 

range in temperature may amount to several degrees and may 

follow closely changes in air temperature. The thermometers 

used for determination of water temperature were accurate to 

plus or minus about 0. 5°F.

Records of thermograph observations consist of maximum 

and minimum temperatures for each day, and the monthly averages of the maximum daily and minimum daily temperatures.
QUALITY OF SURFACE WATERS, 1952

EXPRESSION OF RESULTS

The dissolved mineral constituents are reported in parts per 

million. A part per million is a unit weight of a constituent in 

a million unit weights of water. Equivalents per million are not 

given in this report although the expression of analyses in equivalents per million is sometimes preferred. An equivalent per 

million is a unit chemical combining weight of a constituent in 

a million unit weights of water and is calculated by dividing the 

concentration in parts per million by the chemical combining 

weight of the constituent. For convenience in making this conversion the reciprocals of chemical combining weights of the 

most commonly reported constituents (ions) are given in the following table:

Constituent Factor Constituent Factor

Iron (Fe++) .......... 0. 0358 Carbonate (CO3~) .. 0. 0333

Iron (Fe+++) ......... . 0537 Bicarbonate (HCO3 -) . 0164

Calcium (Ca++) ...... . 0499 Sulfate (SO4 ~~)...... . 0208

Magnesium (Mg++) .... 0822 Chloride (C1-)...... . 0282

Sodium (Na+) ........ .0435 Fluoride (F~) ...... . 0526

Potassium (K+) ...... . 0256 Nitrate (NO3 -)...... . 0161

Results given in parts per million can be converted to grains 

per United States gallon by dividing by 17.12. A calculated quantity of sodium and potassium is given in some analyses and is the 

quantity of sodium needed in addition to the calcium and magnesium to balance the acid constituents.

The hardness, as calcium carbonate (CaCO3 ), is calculated 

from the equivalents of calcium and magnesium except for a few 

samples for which the reported values also include equivalents 

of free mineral acid, aluminum, iron, and manganese when present in significant quantities. The hardness caused by calcium 

and magnesium (and other ions if significant) equivalent to the 

carbonate and bicarbonate is called carbonate hardness; the hardness in excess of this quantity is called noncarbonate hardness.

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. Percent sodium is computed for those analyses where sodium and potassium are reported separately by dividing the equivalents per million of sodium by the sum of the 

equivalents per million of calcium, magnesium, sodium, and 

potassium and multiplying the quotient by 100. In analyses where 

sodium and potassium were calculated and reported as a combined value, the value reported for percent sodium will include 

the equivalent quantity of potassium. In most waters of moder-
COMPOSITION OF SURFACE WATERS 7

ate to high concentration, the proportion of potassium is much 

smaller than that of sodium.

Specific conductance values are expressed in reciprocal ohms 

times 1()6 (micromhos at 25°C). The discharge of the streams is reported in cubic-feet per second (see Stream Flow, p. 19) and the 

temperature in degrees Fahrenheit. Color is expressed in units of 

the platinum-cobalt scale proposed by Hazen (1892J pu 427~428)r 

Hydrogen-ion concentration (pH) is given as the negative logarithm 

of the number of moles of ionized hydrogen per liter of water.

An average of analyses (arithmetical or weighted) for the water 

year is given for most daily sampling stations. An arithmetical 

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 weighted 

average represents approximately the composition of water that 

would be found in a reservoir containing all of the water passing 

a given station during the year after thorough mixing in the reservoir. The weighted average of the analyses is computed by multiplying the discharge for the sampling period by the quantities of 

the individual constituents for the corresponding period and dividing the sum of the products by the sum of the discharges. Water 

as represented by the weighted average is less concentrated than 

that represented by the average of the individual analyses for most 

streams because at times of high discharge the rivers generally 

have lower concentrations of dissolved solids.

Mean daily sediment concentrations are expressed in parts per 

million by weight. A part per million of sediment 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 concentration in parts per million by the daily mean discharge, and the appropriate conversion 

factor, normally 0.0027.

Particle-size analyses are expressed in percentages finer than 

indicated sizes in millimeters. The size classification used in this 

report is that recommended by the American Geophysical Union 

Subcommittee on sediment terminology (Lane, et al; 1947, p. 937). 

Other data included as pertinent to the size analyses for many 

streams are the date of collection, the stream discharge and sediment concentration when sample was collected, the concentration 

of the suspension during analysis, and the method of analysis.

COMPOSITION OF SURFACE WATERS

All natural waters contain dissolved mineral matter. Water 

in contact with soils or rock, even for only a few hours, will dissolve some rock materials. The quantity of dissolved mineral 

matter in a natural water depends primarily on the type of rocks 

or soils through which the water has passed and the length
8 QUALITY OF SURFACE WATERS, 1952

of time it has been in contact with the rocks or soils. Some; 

streams are fed by both surface runoff and underground water \ 

from springs or seeps. Such streams reflect the chemical char- i 

acter of their concentrated underground sources during dry^eri-^ 

ods and are more dilute during periods of heavy rainfall'. Underground water is usually more highly concentrated than surface / 

runoff as it remains in contact with the rocks and soils for muchj > 

longer periods. The concentration of dissolved solids in a river / 

water is frequently increased by drainage from mines or oil fields,; 

by the addition of industrial or municipal wastes, or in irri-! 

gated regions by return drain waters. * *" 

The mineral constituents and physical properties of natural 

waters reported in the tables of analyses include those that haye 

a practical bearing on the value of the waters for most purposes. 

The analyses generally include results for silica, iron, calcium, 

magnesium, sodium, potassium (or sodium and potassium together as sodium), bicarbonate, sulfate, chloride, fluoride, nitrate, boron, and dissolved solids. Aluminum, manganese, color, pH, acidity, oxygen consumed, and other dissolved constituents and physical properties are reported for certain streams. 

The source and significance of the different constituents and properties of natural waters are discussed in the following paragraphs.

v MINERAL CONSTITUENTS IN SOLUTION

Silica (Si02)

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/are as 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.
COMPOSITION OF SURFACE WATERS

Manganese (Mn)

Manganese is dissolved in appreciable quantities from rocks 

in somexjsections of thejcountry. Waters impounded in large reservoirs may contain nlanganese that has been dissolved from the 

mud on the bottom/of the reservoir by action of carbon dioxide 

produced by anaerobic fermentation of organic matter. Manganese is not regularly determined in areas where it is not present 

in the waters iii appreciable amounts. 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 darkbrown or black stain on fabrics and porcelain fixtures. Appreciable quantities of manganese are often found in waters containing objectionable quantities of iron.

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 white porcelain or 

enameled ware and fixtures and on fabrics washed in the water.

Calcium (Ca)

Calcium is dissolved from practically 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-bear ing rocks may contain from 

20 to 100 parts per million or more of magnesium.
10 QUALITY OF SURFACE WATERS, 1952

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 Untied States. Na^uralwa- 

/ ters that contain only 3 or 4 parts per million of the two^fo^emer 

* 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 or 100 parts 

per million of the two may require careful operation of steam 

boilers to prevent foaming. More highly mineralized waters that 

contain a large proportion of sodium salts may be unsatisfactory 

for irrigation.

Carbonate and bicarbonate (COS and HCOS)

Bicarbonate occurs in waters largely through the action of 

carbon dioxide, which enables the water to dissolve carbonates 

/ of calcium and magnesium. Carbonate as such is not usually 

^ present in appreciable quantities in natural waters. The bicarbonate in waters that come from relatively insoluble rocks may 

amount to less than 50 parts per million; many waters from limestone contain from 200 to 400 parts per million. Bicarbonate in 

moderate concentrations in water has no effect on its value for 

most uses. Bicarbonate or carbonate is an aid in coagulation 

for the removal of suspended matter from water.

Sulf ate (SOO

Sulfate is dissolved from many rocks and soils in especially 

large quantities from gypsum and from beds of shale. It is form - 

\J ed also by the oxidation of sulfides of iron and is therefore present in considerable quantities in waters from mines. Sulfate in 

waters that contain much calcium and magnesium causes the formation of hard scale in steam boilers and may increase the cost 

of softening the water.

Chloride (Cl)

Chloride is dissolved from rock materials in all parts of the 

<> / country. Surface waters in the humid regions are usually low in 

chloride, whereas streams in arid or semiarid regions may contain several hundred parts per million of chloride leached from 

soils and rocks, especially where the streams receive return 

drainage from irrigated lands or are affected by ground-water 

inflow carrying appreciable quantities of chloride. Large quantities of chloride may affect the industrial use of water by in-
COMPOSITION OF SURFACE WATERS 11

creasing the corrosiveness of waters that contain large quantities 

of calcium and magnesium.

Fluoride (F)

Fluoride has been reported as being present in some rocks 

to about the same extent as chloride. However, the quantity of 

fluoride in natural surface waters is ordinarily very small compared to that of chloride. Recent investigations indicate that the 

/ incidence of dental caries is less when there are small amounts 

"" of fluor ide present in the water supply than when there is none. 

. However, excess fluoride in water is associated with the dental 

defect known as mottled enamel if the water is used for drinking 

by young children during calcification or formation of the teeth 

(Dean, 1936, ^-1269^1272). This defect becomes increasingly 

noticeable as the quantity of fluoride in water increases above 

1. 5 to 2.0 parts per million.

Nitrate (N08)

Nitrate in water is considered a final oxidation product of nitrogenous material and in some instances may indicate previous 

contamination by sewage or other organic matter. The quantities 

of nitrate present in surface waters usually amount to less than 

5 parts per million (as NO3) and have no effect on the value of 

the water for ordinary uses.

/ It has been reported that as much as 2 parts per million of 

nitrate in boiler water tends to decrease intercrystalline cracking of boiler steel. Studies made in Illinois indicate that nitrates 

in excess of 70 parts per million (as NO3) may contribute to methemoglobinemia ("blue babies") (Faucett and Miller, 1946, p. 

593), and more recent investigations conducted in Ohio show that 

drinking water containing nitrates in the range of 44 to 88 parts 

per million or more (as NO3) may be the cause of methemoglobinemia in infants (Waring, 1949). In a report published by the 

National Research Council, Maxcy (1950, p. 271) concludes that 

a nitrate content in excess of 44 parts per million (as NO3) should 

be regarded as unsafe for infant feeding.

Boron (B)

Boron in small quantities has been found essential for plant 

growth, buMrrigatton water containing more thanl part per million boron^B^deffimental to citrus and other boron-sensitive 

crops. Boron is reported in Survey analyses of surface waters 

in arid and semiarid regions of the Southwest andWest where 

irrigation is practiced or contemplated, but l&IP^Fthe surface 

waters analyzed have harmful concentrations of boron.
12 QUALITY OF SURFACE WATERS, 1952

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 wa- 

/ ter of crystallization. Waters with less than 500 parts per mil- 

^ lion of dissolved solids are usually satisfactory for domestic and 

some industrial uses. Waters 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.

PROPERTIES AND CHARACTERISTICS OF WATER 

Oxygen consumed

The value for oxygen consumed furnishes an approximation 

of the ox id iz able matteXln the unfiltered and filtered samples 

, and gives a partial measure of polluting materials such as sew- 

>C age and oxidizable industrial wastes. Naturally highly colored 

waters may have relatively high oxygen consumed, although waters that are not noticeably colored may contain oxidizable material.

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 10 usually passes unnoticed. Some swamp waters 

have natural color of 200 to 300 or more.

Hydrogen-ion concentration (pH)

7 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 

water-treatment plants. A pH value of 1. 0 indicates that the water is neither acid nor alkaline. Waters having pH values progressively lower than 1. 0 denote increasing acidity, whereas 

values progressively higher than 7.0 denote increasing alkalinity.
COMPOSITION OF SURFACE WATERS 13

(See p. 7 ). 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 usually 

have pH values less than 4. 5.

Specific conductance (micromhos at 25 C)

The specific conductance of a water is a measure of its cai) parity to conduct a current of electricity. The conductance 

^ x varies with the concentration and degree of ionization of the dif- 

// ferent minerals in solution and with the temperature of the water. 

When considered in conjunction with results of determinations 

for other constituents, specific conductance is a useful determination and plays an important part in indicating changes in 

concentration of the total quantity of dissolved minerals in surface waters.

Hardness

Hardness is the characteristic of water that receives the most 

attention in industrial and domestic use. It is usually 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. Water that has less than 

60 parts per million of hardness is usually rated as soft and suitable for many purposes without further softening. Waters with 

hardness ranging from 61 to 120 parts per million may be considered moderately hard, but this degree of hardness does not 

seriously interfere with the use of water for many purposes except for use in high-pressure steam boilers and in some industrial processes. Waters with hardness ranging from 121 to 200 

parts per million are considered hard, and laundries and industries may profitably soften such supplies. Water with hardness 

above 200 parts per million usually requires some softening before being used for most purposes.

Total acidity

The "total acidity of a natural water represents the content

of free carbpnfdioxide, mineral acids, and salts especially sulY fates of iron mnd aluminum that hydrolyze to give hydrogen ions.

r- Acid waters/are very corrosive and generally contain excessive

/ amounts of objectionable constituents, such as iron, aluminum,

and manganese.
14 QUALITY OF SURFACE WATERS, 1952

Corrosiveness

The corrosiveness of a water is that property which makes 

the water aggressive to metal surfaces and frequently results 

in the appearance of the "red water" caused by solution of iron. 

/ The disadvantages of iron in water have been discussed previ- 

/ ously. Additionally, corrosion causes the deterioration of water 

pipes, steam boilers, and water-heating equipment. Many waters 

that do not appreciably corrode cold-water lines will aggressively attack hot-water lines. Oxygen, carbon dioxide, free acid, 

and acid-generating salts are the principal constituents in water 

that cause corrosion. In a general way, very soft waters of low 

mineral content tend to be more corrosive than hard waters containing appreciable quantities of carbonates and bicarbonates of 

calcium and magnesium.

Percent sodium

Percent sodium is reported in most of the analyses of waters 

/ collected from streams in the western part of the country where 

,/ irrigation is practiced extensively. The proportion of sodium to 

all the basic constituents in the water has a bearing on the suitability of a water for irrigation. (See p. 6 .) Waters in which 

the percent sodium is more than 60 may be injurious when applied to certain types of soils, particularly when adequate drainage is not provided (Magistad and Christiansen, 1944, p. 8-9; 

Wilcox, 1948, p. 6).

Sodium - adsorption - ratio

Sodium-adsorption-ratio (SAR) is the relative proportion of 

sodium to other cations in an irrigation water.

SAR= Na+

(Ca+++Mg++)/2

where the ionic concentrations are expressed in milliequivalents 

per liter (or equivalents per million for most irrigation waters).

The term is used for soil extracts and irrigation waters to 

express the relative activity of sodium ions in exchange reactions 

with soil. SAR provides an estimate of the sodium or alkali hazard and reportedly is more significant for interpreting water quality than percent sodium because it relates more directly to the 

exchangeable sodium percentage the soil will attain when it and 

the water are in equilibrium.

The U. S. Salinity Laboratory diagram for classifying waters 

for irrigation divides water into four classes with respect to sodium hazard, the dividing points being at SAR values of 10, 18, 

and 26. They range from low-sodium water that can be used for 

irrigation on almost all soils to very high-sodium water which is 

generally unsatisfactory for irrigation.
PUBLICATIONS 15

SEDIMENT

Fluvial sediment is generally regarded as that sediment which 

is transported by, suspended in, or deposited by water. Suspended sediment is that sediment which remains in suspension 

in water owing to the upward components of turbulent currents 

or by colloidal suspension. Most fluvial sediment results from 

the normal process of erosion, which In turn is part of the geologic cycle of rock transformation. In $ome instances, this normal process may have been accelerated by agricultural practices. Sediment also results from a number of industrial 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, vegetal cover, topography, and land use. An important property of fluvial sediment is the fall velocity of the 

particles in transport. Particle sizes, as determined by various 

methods, represent mechanical diameters, which are related to 

sedimentation diameters indirectly. Sediment particles in the 

sand-size (larger than 0.062 mm) range do not appear to be affected by flocculation or dispersion resulting from the mineral 

constituents in solution. 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 par tides in transport at any point depends on the 

type oferodible 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

\

Reports giving chemical analyses, suspended-sediment loads, 

and water temperatures of samples of surface water made by 

the Geological Survey have been published yearly since 1941. 

Records for the years ended September 30, 1941, 1942, 1943, 

1944,1945, 1946, 1947, 1948,1949, 1950, and 1951, for many of the 

stations listed in this report are given in Water-Supply Papers 942, 

950, 970, 1022, 1030, 1050, 1102, 1133, 1163, 1189, and 1200.

Geological Survey reports containing analyses of surfacewater samples collected prior to 1941 are listed below. Publi-
16 QUALITY OF SURFACE WATERS, 1952

cations dealing largely with the quality of ground-water 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.

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 the 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 17

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 25, D. C. , who will, upon request, furnish 

lists giving prices.

COOPERATION

Financial assistance was furnished by the Bureau of Reclamation of the United States Department of the Interior, in the operation of some stations in Arizona and New Mexico. Investigations of chemical quality in the Great Basin and Pacific Slope basins in California were carried on in cooperation with the State 

of California. Investigations of chemical quality in the upper Virgin River basin, Utah, were initiated in 1951 in cooperation with 

the State of Utah. Sedimentation studies in the Pacific Slope basins in Washington were begun in 1950 with the City of Tacoma.

Assistance in collecting records was given by many municipal, State, and Federal agencies.

In addition to the cooperative program, many of the stations 

were operated from funds appropriated directly to the Geological 

Survey for quality-of-water investigations. Investigation of the 

chemical quality and suspended-sediment loads in the Colorado 

River basin in Arizona, Colorado, Nevada, New Mexico, and Utah 

have been carried on as a continuing Federal project since 1925.

DIVISION OP WORK

The quality-of-water program was conducted by the Water Resources Division of the Geological Survey, Carl G. Paulsen, Chief 

Hydraulic Engineer, and S. K. Love, Chief of the Quality of Water 

Branch. The records were collected and prepared for publication 

under supervision of district or regional chemists as follows: In 

Arizona and New Mexico--J. D. Hem; in Colorado and Wyoming
18 QUALITY OF SURFACE WATERS, 1952

(Colorado River basin), Nevada, Utah, California, Washington, 

Oregon, and Idaho C. S. Howard. Any additional information on 

file may be obtained by writing or visiting the responsible Survey 

Quality of Water district office as listed in the following table.

District office Drainage basin

Geology Bldg. 

University of N. Mex. 

University Station, Box 293 

Albuquerque, N. Mex.

Colorado River basin 

(Arizona, New Mexico).

Post Office Box 2657 

Building 504 

Fort Douglas 

Salt Lake City, Utah

Colorado River basin 

(Colorado, Utah, Wyoming,

and Nevada). 

The Great Basin 

(Utah, Nevada).

2520 Marconi Avenue 

Sacramento, Calif.

The Great Basin (California). 

Pacific Slope basins in 

California.

1001 N. E. Lloyd Blvd. 

Post Office Box 3418 

Portland 14, Oreg.

Pacific Slope basins in 

Washington and upper 

Columbia River basin-.

Snake River basin.

Pacific Slope basins in Oregon 

and lower Columbia River 

basin.
STREAMFLOW 19

STREAM FLOW

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 Geological Survey reports 

on the surface-water supply of the United States. The discharge 

reported for a composite sample is usually the average of the 

mean daily discharges for the normal composite period. For analyses in which the composite periods differ from the normal 

10-or 11-day period, the discharges reported are the averages 

of the mean daily discharges for the days indicated. The discharges reported in the tables of single analyses either are daily 

mean discharges or are discharges for the time at which samples 

were collected, computed from a stage-discharge relation or from 

a discharge measurement.

LITERATURE CITED

American Public Health Association, 1946, Standard methods for 

the examination of water and sewage, 9th ed, p. 1-112.

Collins, W. D., 1928, Notes on practical water analysis: U.S. 

Geol. Survey Water-Supply Paper 596-H.

Dean, H. T., 1936, Chronic endemic dental fluorosis: Am. Med. 

Assoc. Jour., v. 107, p. 1269-1272.

Faucett, R. L., and Miller, H. C., 1946, Methemoglobinemia 

occur ring 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., v. 12, p. 427-428.

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., et al, 1949, Report of the Subcommittee on Terminology: Am. Geophys. Union Trans., v. 28, p. 937.

Magistad, O. C., and Christiansen, J. E., 1944, Saline soils, 

their nature and management: U. S. Dept. Agriculture 

Circ. 707, p. 8-9.

Maxcy, Kenneth F., 1950, Report on the relation of nitrate concentrations in well waters to the occurrence of methemoglobinemia: Natl. Research Council, Bull., Sanitary Engineer, p. 265, App. D.

U. S. Inter-agency Report 7, 1943, A study of methods used in 

measurement and analysis of sediment loads in streams, 

a study of new methods for size analysis of suspended 

sediment samples, p. 82-90; U. S. Engineer Office, St. 

Paul, Minn.
20 QUALITY OF SURFACE WATERS, 1952

U. S. Inter-agency Report 8, 1948, A study of methods used in 

measurement and analysis of sediment loads of streams, 

measurement of the sediment discharge of streams, p. 70- 

76; U. S. Engineer Office, St. Paul, Minn.

U. S. Salinity Laboratory Staff, 1954, Diagnosis and improvement 

of saline and alkali soils: U. S. Dept. Agriculture Handbook 60, p. 1-60.

Waring, F. Holman, 1949, Significance of nitrates in water supplies: Jour. Am. Water Works Assoc., v. 72, no. 2.

Wilcox, L. V., 1948, Explanation and interpretation of analyses 

of irrigation waters: U. S. Dept. Agriculture Circ. 784, 

P. 6.
CHEMICAL ANALYSES, WATER TEMPERATURES, AND SUSPENDED 

PART 9. COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM 

COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO.

LOCATION. At bridge at Hot Sulphur Springs, Grand County, 1 mile downstream from gaging station which is 

DRAINAGE AREA. 782 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1952.

Water temperatures: April 1949 to September 1952. 

EXTREMES, 1951-52.--Specific conductance: Maximum daily, 202 micromhos July 31; minimum daily, 59.5 micr

Water temperatures: Maximum observed, 63°F July 21-22; minimum observed, freezing point on many days d

EXTREMES, 1947-52. Dissolved solids (1947-50): Maximum, 109 ppm Aug. 11-20, 1950; minimum, 38 ppm June 

Hardness (1947-50): Maximum, 71 ppm Aug. 11-20, 1950; minimum, 20 ppm June 21-30, 1947.

Specific conductance: Maximum daily, 202 micromhos July 31, 1952; minimum daily, 47.6 micromhos June 2

Water temperatures: Maximum observed, 65°F on several days during July and August, 1950; minimum obser

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conducta

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WSP 

Chemical analyses, In parts per million, water year October 1951 to September 1

Date of collection

Oct. 1-10, 1951... 

Oct. 11-20 .......

Oct. 21-31 .......

Nov. 1-10 ........

Nov. 11-20.......

Nov. 21-30.......

Dec. 1-10........

Dec. 11-17 .......

Apr. 1-10, 1952 . . 

Apr. 11-20.......

Apr. 21-30.......

May 1-10. ........

May 11-20. .......

May 21-31........

June 1-10 ........

June 11-20 .......

June 21-30 .......

Mean 

discharge 

(cfs)

104 

97.4 

115 

102 

102 

96.0

90.8 

86.3 

123 

507 

1,085

1,851 

1,558 

1,299 

2,823 

2,414 

1.230

Silica 

(S10,)

14 

14 

16

14

14 

11

11 

10

Iron 

(Fe)

Calcium 

(Ca)

18

17 

17

18

16 

15

9.8 

7.6

Magnesium 

(Mg)

3.2 

3.2 

3.3

3.4

3.8 

3.1

2.2 

2.5

Sodium 

(Na)

Potassium 

(K)

8.3 

8.1 

8.0

7.8

9.5 

8.3

4.9 

2.1

Bicarbonate 

(HCO,)

82

78 

78

76

80 

62

44 

34

Sulfate 

(S0«)

6.2 

6.0 

6.4

11

8.1 

9.9

5.8 

4.3

Chloride 

(CD

1.5 

2.1 

1.9

1.2

1.2 

4.1

1.0 

.8

Fluorlde 

(F)

Nitrate 

(NO,)

0.3 

.2 

.2

.4

.5 

1.7

.7

.4

Boron 

(B)

--

0.08

"

--

Disso

(resid

Parts 

per 

million

96 

94 

96 

93 

90

91 

83 

98 

95

75 

a 57 

64

45

fi2

a Sum of determined constituents.
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO. Contin

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

July 1-10, 1952.. 

July 11-20. ......

July 21-31.......

Sept. 19-30. .....

Weighted average

Mean 

discharge 

(cfs)

494 

274 

277 

195

b712

Silica 

(SiO.)

15

-

Iron 

(Fe)

Calcium 

(Ca)

18

--

Magnesium 

(Mg)

3.7

Sodium 

(Na)

Potassium 

(K)

7.0

-

Bicarbonate 

(HCO,)

78

Sulfate 

(SO,)

6.0

--

Chloride 

(Cl)

3 2

--

Fluoride 

(F)

Nitrate 

(NO,)

0.8

Boron 

(B)

0.04

Di

(res

Parts 

per 

million

86 

98 

109 

72

b Represents 87 percent of runoff for water year October 1951 to September 1952.
COLORADO RIVER MAIN STEM 23

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

45

46

47

45

46

40

42

42

41

42

41

40

42

40

41

40

41

40

41

39

38

40

--

40

39

39

38

38

39

36

38

41

Nov.

36

35

34

35

34

35

34

35

36

34

34

33

33

33

33

34

34

33

32

33

34

34

33

32

33

32

32

33

34

33

--

34

Dec.

32

34

32

34

33

32

32

33

32

33

33

32

33

34

32

32

32

--

_

_

--

--

Jan. Feb. Mar. Apr.

36

35

36

35

36

36

36

35

35

36

35

36

36

36

35

35

35

35

36

35

35

35

35

37

45

46

46

45

45

45

--

37

May

46

46

45

46

46

46

45

45

45

45

44

46

46

49

49

48

49

48

49

48

46

45

45

46

46

46

47

46

49

48

48

47

June

49

50

49

50

50

50

50

50

50

49

49

50

50

50

50

50

50

50

_

--

55

55

55

55

55

55

55

55

55

55

52

July

60

60

60

54

54

55

55

58

60

55

55

55

55

62

62

62

62

62

60

60

63

63

56

58

60

60

60

62

58

56

60

59

Aug. Sept.

_

_

_

_

--

_

__

_

--

__

_

_

_

_

_

51

50

43

44

44

43

44

44

49

45

44
EAGLE RIVER BASIN

EAGLE RIVER AT GYPSUM, COLO.

(Records formerly collected at this site

were published as Eagle River below Gypsum)

LOCATION. At bridge at Gypsum, Eagle County, about 400 feet upstream from Gypsum Creek and U. S. Highway

station

DRAINAGE AREA. 844 square miles above sampling station (957 square miles above gaging station below Gyps

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1952.

Water temperatures: April 1949 to September 1952.

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,370 ppm (sum) Aug. 11-12; minimum, 134 ppm June 11-20. 

Specific conductance: Maximum daily, 1,750 micromhos Aug. 11; minimum daily, 189 micromhos June 17.

Water temperatures: Maximum observed, 70°F July 13-14, 17-18, 27; minimum observed, freezing point on 

EXTREMES, 1947-52. Dissolved solids: Maximum, 1,370 ppm Aug. 11-12, 1952; minimum, 108 ppm May 21-31, 1

Hardness (1947-50): Maximum, 511 ppm Sept. 21-30, 1948; minimum, 78 ppm June 1-10, 1948.

Specific conductance: Maximum daily, 1,850 micromhos Aug. 6, 1949; minimum daily, 156 micromhos June 4

Water temperatures (1949-52): Maximum observed, 76°F Aug. 24, 1949; minimum observed, freezing point o

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conducta

at Salt Lake City, Utah. Discharge records for gaging station below Gypsum for water year October 195

include the inflow of Gypsum Creek, which was about 5 to 7 percent of the measured runoff at the gagin

appreciable inflow between sampling point and gaging station except during periods of heavy local rains

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20. ......

Oct. 21-31. ......

Nov. 1-10.......

Nov. 11-20......

Nov. 21-30......

Dec. 1-10.......

Dec. 11-20......

Dec. 21 -31 a..... 

Jan. 1-10, 1952.. 

Jan. 11-20 ......

Jan. 21-31 ......

Feb. 1-10 .......

Feb. 11-20......

Feb. 21-29......

Mar. 1-10.......

Mar. 11-20......

Mar. 21-31......

Mean 

discharge 

(cfs)

234 

241 

283 

262 

236 

241

214 

206 

202 

192 

210 

184

179 

171 

172 

176 

176 

181

Silica 

(SiO.)

11 

13

11 

11

9.8 

7.2

Iron 

(Fe)

Calcium 

(Ca)

139 

120

122 

106

108 

111

Magnesium 

(Mg)

29 

29

27 

24

25 

25

Sodium 

(Na)

Potassium 

(K)

67 

65

62 

67

76 

83

Bicarbonate 

(HCOS)

194 

180

182 

165

163 

173

Sulfate 

(SO,)

312 

257

259 

228

238 

252

Chloride 

(Cl)

90 

102

92 

95

111 

110

Fluoride 

(F)

Nitrate 

(NO,)

1.4 

1.9

1.7

1.7

1.4 

1.5

Boron 

(B)

"-

0.04

Diss

(resid

Parts 

per 

million

1,020 

766 

655 

694 

691 

639

707 

686

693 

634 

655

687 

671 

692 

646 

676 

655

a Not included for computation of weighted averages.
Apr. 11-19......

May 1-10........

May 11-20. ......

May 21-27.......

May 28-31.......

June 11-20 ......

June 21-27 ......

June 28-30, July 1- 

4 .............

July 5-10........

July 21-31.......

Aug. 3-10 .......

Aug. 11-12......

Aug. 13-20......

Sept. 1-10.......

Sept. 11-20......

Sept. 21-30......

Weighted average

1,993

2,168

1,442

645

429

301

c818

6.6

13

-

42

42-

-

11

-

i f\n -

-

468

e -

g-

--

Qnn

150

Ann

394

491

579

355

b Sum of determined constituents.

c Represents 99 percent of runoff for water year October 1951 to September 1952.
26 COLORADO RIVER BASIN

EAGLE RIVER BASIN Continued 

EAGLE RIVER AT GYPSUM, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

59

54

54

52

52

53

53

53

54

56

54

55

53

51

48

50

53

53

51

51

45

49

48

47

48

45

44

46

48

48

44

51

Nov.

39

39

40

42

43

41

39

38

43

42

45

43

42

41

39

36

34

33

33

38

37

36

36

35

39

39

40

39

35

35

--

39

Dec.

36

35

36

34

36

34

32

32

31

34

35

34

33

32

32

33

32

31

32

32

31

33

32

31

32

31

32

33

32

31

32

33

Jan.

32

31

31

31

31

32

31

32

33

32

33

32

33

33

32

32

33

33

32

33

33

32

33

32

32

33

33

32

32

32

33

32

Feb.

32

33

32

33

33

33

32

32

31

32

32

33

33

33

32

34

32

33

33

33

32

33

34

33

32

32

33

32

32

-_

--

33

Mar.

32

33

32

34

34

35

34

33

32

35

33

33

34

35

34

33

34

33

34

33

34

32

33

33

32

35

36

35

36

37

39

34

Apr.

36

38

40

42

43

43

44

45

44

45

45

47

49

48

50

51

50

51

50

51

51

52

51

52

52

53

54

54

55

54

--

48

May

55

54

55

56

57

56

55

54

55

56

55

55

54

54

53

50

51

50

51

51

52

53

54

53

54

54

55

53

54

53

54

54

June

55

55

54

56

56

55

54

55

56

54

55

56

55

54

55

56

56

56

57

58

57

58

57

57

56

56

57

58

59

60

--

56

July

61

62

63

64

65

67

66

68

69

69

69

69

70

70

69

68

70

70

69

68

67

68

67

68

68

69

70

69

69

68

67

68

Aug.

68

67

66

67

68

69

68

68

67

68

68

69

69

68

68

67

68

69

69

68

69

68

68

68

69

67

66

67

68

69

68

Sept.

67

68

64

63

63

64

62

63

64

63

64

63

63

64

63

62

63

61

62

60

61

62

63

62

62

62

61

60

61

62

63
COLORADO RIVER MAIN STEM--Continued 

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO.

LOCATION. At Shoshone power plant, 6 miles upstream from gaging station at Glenwood Springs, Garfield Cou

DRAINAGE AREA. 4,560 square miles, approximately (above gaging station). 

RECORDS AVAILABLE.--Chemical analyses: October 1941 to September 1952.

Water temperatures: May 1949 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 507 ppm Jan. 1-10; minimum, 128 ppm June 11-20.

Hardness: Maximum, 234 ppm Aug. 1-10; minimum, 85 ppm June 11-20.

Specific conductance : Maximum daily, 1,010 micromhos Jan. 8; minimum daily, 180 micromhos June 16.

Water temperatures: Maximum observed, 66°F July 22-25, Aug. 7; minimum observed, freezing point on many 

EXTREMES, 1941-52.--Dissolved solids: Maximum, 2,030 ppm Aug. 10, 1947; minimum, 105 ppm June 1-10, 1942.

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 May 24

Water temperatures (1949-51): Maximum observed, 69 °F July 31, 1951; minimum observed, freezing point on 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductanc

Salt Lake City, Utah. Records of discharge for gaging station at Glenwood Springs for water year Octob

appreciable inflow between Shoshone power plant and gaging station except during periods of heavy local 

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20 ......

Oct. 21-31 ......

Nov. 1-10 .......

Nov. 11-20......

Nov. 21-30 ......

Dec. 1-10 .......

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1952.. 

Jan. 11-20 ......

Jan. 21-31 ......

Feb. 1-10 .......

Feb. 11-20 ......

Feb. 21-29 ......

Mar. 1-10.......

Mar. 11-20......

Mar. 21-31......

Apr. 1-10 .......

Apr. 11-20 ......

Apr. 21-30 ......

Mean 

discharge 

(eta)

1,304 

1,144 

1,199 

1,138 

1,014 

1,023

933 

1,123 

1,031 

713 

945 

911

821 

810 

804 

744 

914 

1,381

1,273 

2,819 

5,695

Silica 

(SiO.)

12 

11 

12 

13 

12 

14

11 

13 

14 

14 

14 

13

13 

13 

13 

12 

12 

11

11 

12 

11

Iron 

(Fe)

Calcium 

(Ca)

62 

62 

63 

59 

60 

59

60 

52 

57 

68 

58 

56

60 

60 

62 

60 

58 

41

57 

50 

44

Magnesium 

(Mg)

13 

16 

16 

14 

15 

15

12 

11 

12 

15 

13 

14

15 

15 

13 

14 

11 

9.4

14 

12 

8.7

Sodium 

(Na)

67 

66 

63 

59 

63 

64

60 

51 

58 

85 

68 

70

78 

80 

84 

84 

69 

50

61 

35 

17

Potassium 

(K)

3.0 

2.7 

2.7 

2.7 

2.6 

2.6

2.6 

2.3 

2.2 

2.6 

2.2 

2.5

2.8 

2.8 

2.8 

2.7 

2.5 

2.4

2.5 

2.6 

2.4

Bicarbonate 

(HCO.)

136 

136 

142 

134 

134 

140

124 

120 

126 

156 

130 

131

135 

136 

138 

136 

126 

105

124 

129 

130

Sulfate 

(S0«)

113 

115 

117 

106 

108 

102

98 

83 

89 

117 

99 

97

107 

106 

106 

104 

91 

66

107 

81 

52

Chloride 

(CD

96 

98 

90 

86 

94 

93

86 

73 

85 

124 

101 

102

115 

117 

122 

121 

98 

70

87 

42 

17

Fluoride 

(F)

Nitrate 

(NO,)

0.7 

.6 

.7 

.8 

.7 

.7

.4 

.5 

.5 

.5 

.5 

.9

.4 

.8 

1.4 

1.4 

1.4 

1.4

1.0 

1.5 

1.5

Boron 

(B)

0.11 

.10

.06

.11 

.08

.05

Disso

(residu

Parts 

per 

million

440 

448 

446 

413 

432 

430

402 

352 

384 

507 

434 

424

461 

466 

476 

469 

408 

308

407 

324 

232

T

a
COLORADO RIVER MAIN STEM--Continued

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO. Continue

Chemical analyses, in parts per million, water year October 1951 to September 1

Date of collection

May 1-10, 1952 . . 

May 11-20 ......

May 21-31 ......

June 1-10 ....... 

June 11-20 ......

July 11-20.......

Aug. 11-20 ......

Sept. 1-10 ......

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

10,060 

10, 570 

8,625

16,010 

14, 760 

8,813 

5,554 

3,551 

2,941

2,602 

2,760 

2,307 

2,006 

1,579 

1,424

3,362

Silica 

(SiO.)

11 

11 

12

10 

9.6 

8.4 

9.3 

9.5 

11

12 

11 

11 

11 

11 

9.7

11

Iron 

(Fe)

Calcium 

(Ca)

34 

30 

30

33 

26 

29 

34 

44 

56

69 

65 

60 

58 

58 

60

40

Magnesium 

(Mg)

6.6 

6.1 

6.6

5.2 

4.9 

5.8 

7.2 

10 

13

15

13 

14 

14 

14 

15

8.5

Sodium 

(Na)

11 

10 

12

7.5 

8.1 

13 

19 

30 

34

43 

37 

44 

47 

49 

55

25

Potassium 

(K)

1.9 

1.4 

1.3

1.5 

1.2 

1.5 

1.7 

1.8 

2.2

2.6 

2.0 

2.1 

2.0 

2.5 

2.5

1.8

Bicarbonate 

(HCO.)

103 

95 

92

100 

80 

80 

90 

103 

124

143 

132 

132 

128 

132 

132

106

Sulfate 

(SO,)

40 

27 

31

25 

24 

41 

49 

74 

98

121 

108 

101 

98 

102 

104

55

Chloride 

(Cl)

8.0 

10 

13

6.0 

8.0 

15 

24 

40 

45

62 

52 

65 

75 

75 

87

33

Fluoride 

(F)

Nitrate 

(NO,)

1.4 

1.0 

.8

1.0 

.7 

.8 

.6 

.7 

.8

1.0 

.7 

.7 

.5 

.5 

.4

0.9

Boron 

(B)

"

--

Diss

(resi

Parts 

per 

million

180 

157 

164

147 

128 

150 

194 

266 

322

398 

358 

366 

378 

392 

412

236
COLORADO RIVER MAIN STEM 29

COLORADO RIVER MAIN STEM--Continued

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

56

56

54

52

50

49

48

50

50

50

50

50

49

48

46

48

48

47

47

47

44

42

42

42

43

44

44

44

43

43

43

47

Nov.

40

33

33

36

36

36

36

36

36

36

37

38

37

35

34

32

32

33

32

32

32

32

34

35

35

33

33

3S

32

32

~

34

Dec.

32

32

32

32

32

33

32

32

32

32

32

32

32

32

32

32

32

32

32

33

32

32

32

33

32

32

32

32

33

33

33

32

Jan.

32

32

32

32

32

32

32

32

32

32

32

32

32

33

33

33

33

33

33

33

33

33

33

34

34

34

33

33

33

33

32

33

Feb.

33

33

32

33

..

32

32

32

32

33

34

34

34

34

34

34

34

34

34

34

34

34

33

33

34

33

_

33

Mar.

33

33

33

33

34

34

34

34

34

34

33

34

34

34

34

34

35

34

35

33

34

32

32

33

37

38

36

36

36

37

37

34

Apr.

38

39

39

41

41

40

46

47

46

45

44

46

46

46

46

46

46

45

46

46

44

45

47

48

49

49

50

47

46

46

--

45

May

49

49

50

50

50

48

48

48

48

48

48

50

51

50

49

48

46

48

50

50

49

48

48

50

53

52

52

54

53

52

51

50

June

52

53

51

50

53

54

54

53

53

55

54

53

53

54

56

55

55

56

57

57

56

56

56

58

57

59

56

57

59

60

55

July

62

62

61

60

60

58

58

60

_

61

60

60

60

60

60

60

62

63

63

64

64

66

66

66

66

65

64

65

63

64

63

62

Aug.

62

64

64

63

64

64

66

64

63

63

61

_

61

63

62

63

62

62

62

61

61

60

61

62

61

63

62

61

61

61

59

62

Sept.

59

59

60

60

62

62

62

61

62

62

60

59

58

57

57

58

58

56

57

57

58

57

56

56

56

56

56

56

56

56

58
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CAMEO, COLO.

LOCATION. At Grand Valley project diversion dam, 0.4 mile upstream from Plateau Creek, 3.7 miles upstrea

from gaging station.

DRAINAGE AREA. Approximately 8,060 square miles above gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1933 to September 1952.

Water temperatures: April 1949 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 819 ppm Jan. 1-10, Mar. 11-20, minimum, 172 ppm June 11-2

Specific conductance: Maximum daily, 1,670 micromhos Jan. 6; minimum daily, 284 micromhos June 13.

Water temperatures: Maximum observed, 72*F July 26; minimum observed, freezing point on many days in D

EXTREMES, 1933-52. Dissolved solids, (1933-43, 1950-52): Maximum, 1,050 ppm Dec. 21-31, 1939; minimum, 

Hardness (1933-35): Maximum, 399 ppm July 21-31, 1934; minimum, 98 ppm June 21-30, 1935.

Specific conductance (1941-52): Maximum daily, 1,850 micromhos Jan. 8, 1944; minimum daily, 244 microm

Water temperatures (1949-52): Maximum observed, 72'F July 26, 1952; minimum observed, freezing point o

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductan

at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in 

Chemical analyses, in parts per million, water year October 1951 to Septembe

Date of collection

Oct. 1-10, 1951..

Dec. 1-10 .......

Jan. 1-10, 1952..

Aor. 21-28 ......

Mean 

discharge 

(cfs)

1,988 

1,857 

1,994 

1,809 

1,755 

1,688

1,622 

1,750 

1,800 

1,370 

1,690 

1,618

1,490 

1,456 

1,450 

1,390 

1,715 

2,352

2,626 

4,161 

8.325

Silica 

(SiO,)

9.9 

11

13 

11

12 

10

11

Iron 

(Fe)

Calcium 

(Ca)

81 

79

85 

77

81 

82

68

Magnesium 

(Mg)

23 

23

28 

22

24 

25

21

Sodium 

(Na)

Potassium 

(K)

120

125

144 

133

167 

165

78

Bicarbonate 

(HCO,)

160 

178

198 

180

190 

194

180

Sulfate 

(SO,)

171 

165

177 

157

186 

199

142

Chloride 

(Cl)

175 

172

206 

183

222 

210

89

Fluoride 

(F)

Nitrate 

(NO,)

2.4 

2.4

2.8 

3.3

3.4 

5.0

5.0

Boron 

(B)

0.05 

.10

Disso

(residu

Parts 

per 

million

671 

684 

672 

687 

683 

774

760 

762 

614 

819 

691 

723

768 

806 

752 

774 

819 

644

720 

519 

342

T
Aug. 11-20 .....

Sept. 21-30.......

Weighted average

13,770

4,732

4,205

2,382

C5.735

11

.05

83 16 68 177 149

23

63

85

1.3

1.7 __

--

274

202

523

632

355

a Not included for computation of weighted averages.

b Sum of determined constituents.

c Represents 94 percent of runoff for the water year October 1951 to September 1952.
COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR CAMEO, COLO. Continued

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

8

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

60

61

60

_

55

54

53

55

53

54

54

55

53

52

53

51

53

52

50

51

50

48

46

48

48

48

47

47

46

47

47

52

Nov.

44

39

39

39

42

40

39

39

41

41

41

41

40

39

38

38

34

33

..

34

36

37

38

38

38

36

37

35

33

3d

38

Dec.

35

35

34

35

35

33

32

33

32

32

32

32

32

33

33

33

..

32

32

32

32

32

32

32

32

32

32

32

32

32

32

33

Jan.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

33

34

34

33

32

Feb.

34

33

33

33

34

34

34

34

34

34

34

34

34

33

33

33

34

33

33

--

33

34

34

34

34

34

33

34

Mar.

33

33

33

33

34

36

38

38

39

40

40

38

38

39

37

38

39

39

41

39

38

35

34

34

37

41

42

42

42

43

43

38

Apr.

43

43

45

46

47

47

50

51

48

49

48

52

49

51

52

50

52

51

51

51

51

51

50

50

52

52

52

51

48

47

49

May

51

52

53

53

54

52

52

52

51

50

50

52

54

54

55

53

50

50

53

52

52

53

51

53

53

55

57

55

58

57

55

53

June

55

57

55

55

56

57

57

57

58

58

58

58

58

57

58

..

57

57

59

80

59

57

60

59

58

59

58

59

58

63

--

58

July

63

63

63

63

63

63

61

61

61

61

63

64

84

64

65

65

68

68

67

68

68

70

70

71

71

72

70

70

70

88

69

66

Aug.

69

68

89

--

69

68

89

70

68

68

68

67

88

68

88

67

68

67

57

67

68

67

67

69

--

88

67

86

64

68

Sept.

64

64

64

64

65

68

66

66

64

64

64

67

82

84

62

61

62

61

61

81

60

60

59

59

59

59

58

60

60

82
GUNNISON RIVER BASIN 

GUNNISON RIVER NEAR GRAND JUNCTION, COLO.

LOCATION. At road bridge about half a mile downstream from gaging station, 1 mile downstream from point 

upstream from mouth and Grand Junction, Mesa County. 

DRAINAGE AREA. 8,020 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1931 to September 1952.

Water temperatures: April 1949 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,830 ppm Oct. 21-31; minimum, 214 ppm May 11-20.

Hardness: Maximum, 982 ppm Nov. 21; minimum, 146 ppm May 11-20.

Specific conductance: Maximum daily, 2,410 micromhos Oct. 28; minimum daily, 304 micromhos May 13.

Water temperatures: Maximum observed, 76°F July 27, Aug. 3, 8-9; minimum observed, 33°F on several day

EXTREMES, 1931-52. Dissolved solids: Maximum, 2,820 ppii Sept. 11-20, 1934; minimum, 203 ppm May 11-20, 

Hardness, (1931-35, 1943-52): Maximum, 1,370 ppm Sept. 1-20, 1934; minimum, 143 ppm June 1-10, 1933, M

Specific conductance (1941-52): Maximum daily, 2,680 micromhos Nov. 5, 1950; minimum daily, 280 microm

Water temperatures (1949-52): Maximum observed, 80'F July 20, 1951; minimum observed, freezing point o

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 gi

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951..

Nov. 21 a .......

Dec. 11-20 ......

Dec. 26-31 ......

Jan. 1-10, 1952.. 

Jan. 11-20 ......

Feb. 1-10 ......

Feb. 11-20 ......

Mar. 11-20......

Mar. 21-31......

Mean 

discharge 

(els)

862 

662 

873 

978 

991 

889 

1,062

848 

655 

818 

786 

913 

863

825 

824 

833 

834 

865 

903

Silica 

(SiOj

20 

17 

19 

19 

21

20

20 

23 

19 

19 

18 

19

18 

17 

16 

16 

16 

14

Iron 

(Fe)

Calcium 

(Ca)

242 

214 

238 

198 

179

158

157 

165 

142 

150 

134 

131

131 

129 

120 

122 

124 

121

Magnesium 

(Mg)

88 

83 

94 

77 

73

68

69 

72 

59 

64 

58 

59

60 

60 

56 

57 

58 

60

Sodium 

(Na)

201 

157 

207 

154 

151

147

139 

139 

140 

141 

125 

134

134 

133 

125 

125 

118 

124

Potassium 

(K)

7.6 

7.6 

8.8 

8.3 

8.0

6.9

6.9 

6.0 

6.2 

5.9 

6.2 

5.7

7.5 

6.0 

5.3 

5.7 

6.7 

6.2

Bicarbonate 

(HCO,)

268 

212 

268 

266 

258 

314 

247

247 

256 

218 

242 

218 

223

222 

273 

274 

204 

218 

216

Sulfate 

(S04)

1,080 

980 

1,100 

859 

798

713

703 

722 

653 

681 

625 

619

622 

629 

575 

589 

572 

579

Chloride 

(CD

22 

22 

25 

19 

21

22

20 

20 

18 

18 

18 

17

16 

17 

17 

17 

18 

18

Fluoride 

(F)

Nitrate 

(NO,)

11 

8.0 

10 

8.4 

10

7.8

8.9 

10 

10 

8.0 

9.0 

9.8

7.4 

7.6 

7.3 

7.6 

1.0 

l.l

Boron 

(B)

0.27 

.18

17

Disso

(

Parts 

per 

million

1,800 

1,590 

1,830 

1,470 

1,390

1,260

1,250 

1,280 

1,150 

1,210 

1,100 

1,100

1,110 

1,100 

1,030 

1,040 

1,020 

1.030
GUNNISON RIVER BASIN Continued 

GDNNISON RIVER NEAR GRAND JUNCTION, COLO. Continued

Chemical analyses, In parts per million, water year October 1951 to September 195

Date of collection

Apr. 1-7, 1952...

Apr. 14-20 ..... 

Apr. 21-30 ..... 

May 1-10........

May 21-31 .......

June 2-5, 10 ....

July 21-31 ......

Aug. 21, 25-26 a. 

Aug. 22-23,27-31

Sept. 11-20......

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

1,221 

2,807 

5,693 

10,700 

16, 940 

14,490 

8,937

14,420 

15,100 

7,899 

5,318 

2,815 

1,799

1,941 

1,730 

2,303 

2,077 

1,132 

906 

11,818

b3,502

Silica 

(SiO,)

14 

14 

14 

18 

17 

15 

16

15 

16 

13 

14 

15 

15

17 

18 

20 

20 

18 

16 

18

16

Iron 

(Fe)

Calcium 

(Ca)

106 

72 

59 

52 

46 

43 

50

49 

50 

52 

72 

97 

135

135 

172

168 

180 

216 

166

75

Magnesium 

(Mg)

45 

23 

18 

12 

9.9 

9.5 

15

14 

11 

14 

21 

30 

43

44 

57

58 

70 

85 

64

24

Sodium 

(Na)

88 

46 

26 

23 

15 

13 

23

10 

15 

22 

35 

58 

93

83 

121

116 

142

164 

117

44

Potassium 

(K)

7.1 

5.6 

5.1 

4.2 

3.3 

2.5 

3.0

3.1 

2.5 

3.3 

3.4 

4.8 

6.8

5.9 

7.9

6.5 

7.0 

7.3 

6.0

4.0

Bicarbonate 

(HCO,)

216 

182 

166 

172 

148 

120 

138

120 

123 

115 

140 

163 

197

194 

220 

221 

219 

219 

222 

216

158

Sulfate 

(SO,)

421 

221 

120 

85 

66 

67 

115

95 

92 

129 

204 

332 

508

504 

688 

984 

682 

786 

1,000 

710

234

Chloride 

(Cl)

15 

10 

7.5 

4.0 

3.0 

3.0 

5.5

4.0 

3.0 

4.5 

7.5 

10 

14

12 

16 

19 

18 

20 

22 

16

7.3

Fluoride 

<F)

Nitrate 

(NO,)

0.9 

.3 

.3 

2.0 

1.9 

1.5 

1.7

2.0 

1.8 

2.0 

1.7 

1.8 

4.6

4.4 

4.0 

.8 

7.1 

6.9 

8.6 

7.6

2.8

Boron 

(B)

--

Disso

Parts 

per 

million

803 

482 

332 

285 

235 

214 

297

251 

252 

296 

428 

629 

916

901 

1,190

1,180 

1,340 

1,630 

1,210

485

T

a

a Not included for computation of weighted averages.

b Represents 93 perceut of ruuoff for water year October 1951 to September 1952 .
GUNNISON RIVER BASIN 35

GUNNISON RIVER BASIN Continued

GUNNISON RIVER NEAR GRAND JUNCTION, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

65

62

59

59

55

..

56

57

57

62

62

60

60

55

55

..

60

60

62

~

52

53

50

51

54

52

50

51

51

52

56

Nov.

45

42

43

44

52

53

49

48

46

45

44

45

40

40

39

40

42

41

40

44

40

41

43

43

45

44

41

42

44

Dec.

40

40

41

43

47

42

34

33

34

33

33

33

34

33

38

33

 ,

33

..

34

34

35

37

36

36

--

Jan.

37

33

34

35

34

34

33

33

33

34

37

38

34

38

39

39

~

37

36

39

40

41

39

41

37

40

37

Feb.

39

38

40

40

39

40

39

37

39

40

41

41

40

43

43

41

41

39

46

46

44

45

38

40

41

41

40

41

41

Mar.

43

44

46

42

45

42

44

43

45

44

45

43

42

44

45

45

46

45

43

39

40

40

_

46

..

_

45

50

_

47

44

Apr.

_

51

51

_

5X

54

55

55

51

50

51

50

50

52

52

55

54

55

53

50

49

51

53

53

54

52

55

54

53

54

52

Hay

_

_

_

59

60

61

60

59

_

55

54

54

55

56

54

55

55

_

54

56

57

61

63

59

60

60

62

62

61

61

62

58

June

_

64

63

63

65

_

_

_

66

68

66

67

67

66

65

_

_

65

67

66

66

65

65

67

64

65

65

67

--

July

67

69

_

66

61

67

65

_

68

68

70

_

66

68

68

70

70

72

72

70

74

73

73

73

74

_.

76

72

75

73

70

Aug.

75

75

76

75

70

75

75

76

76

75

72

74

72

74

75

74

75

70

72

73

71

72

73

73

70

69

71

71

70

73

Sept.

70

67

68

70

70

69

70

71

69

70

71

70

71

70

69

67

70

69

67

65

62

64

64

65

65

65

65

65

64

68
DOLORES RIVER BASIN 

DOLORES RIVER AT GATEWAY, COLO.

LOCATION. At bridge on State Highway 141, 500 feet upstream from gaging station, which is 0.3 mile northwe

from West Creek, and 8 miles upstream from Colorado-Utah State line. 

DRAINAGE AREA. 4,350 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses; October 1947 to September 1952.

Water temperatures: April 1949 to September 1952. 

EXTREMES, 1951-52. Specific conductance: Maximum daily, 8,440 micromhos Sept. 23; minimum daily, 201 micr

Water temperatures: Maximum observed, 76°F July 26; minimum observed, freezing point on several days fro

REMARKS. Values reported for dissolved solids are'sums of determined constituents. Records of specific co

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 give

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-2, 1951 ...

Nov. 11-20 ..... 

Nov. 21-30 .....

Jan. 1-10, 1952 

Jan. 11-13, 15-19

Jan. 21-22, 27-28 

Jan. 23, 26, 29-31 

Jan. 24-25

Feb. 11-20 . , , Feb. 21-29 ......

Mar. 9-10 ...... 

Mar. 11-15 .....

Mean 

discharge 

(cfs)

51.0 

60.1 

69.0 

102 

85.5 

92.9 

97.0

104 

93.2 

77.5 

99.0 

162

132 

203 

216 

264 

244 

270

157 

155 

156 

167 

274 

212

Silica 

(SiO,)

5.3 

7.1

10 

9.6

8.4 

11

Iron 

(Fe)

Calcium 

(Ca)

130 

119

138

109 

129

100 

104

Magnesium 

(Mg)

68 

55

66

43 

51

43 

40

Sodium 

(Na)

887 

727

773

578 

834

543 

377

Potassium 

(K)

Bicarbonate 

(HCO,)

136 

150

204

196 

197

185 

183

Sulfate 

(SOJ

521 

403

440

305 

356

300 

318

Chloride 

(Cl)

1,320 

1,100

1,180

865 

1,280

805 

538

Fluoride 

(F)

Nitrate 

(NO,)

21

12

10

8.4 

9.8

9.8

4.7

Boron 

(B)

--

--

-

0.10

"

Disso

Parts 

per 

million

3,020

2,500

2,720

2,010 

2,760

1,900

1,480

T

a
Mar. 16-20, 1952 . 

Mar. 21-27 .....

Mar 29 31

Apr. 12, 14, 19-20 

Apr. 21-30 ....... 

May 1-3, 5-6, 10 .

Aug. 11-14, 17-20

Aug. 21 -22,26, 28-31 

Aug. 23-25, 27 ...

Sept. 30 .........

Weighted average

201 

195 

374 

446

548 

1,907 

6,220 

8,650 

8,458 

8,970 

6,167 

3,226

5,427 

5,067 

2,401 

1,796 

1,141 

504 

457

509 

345 

289 

317 

302 

401 

208 

154

135 

118 

168 

340 

307 

452 

269 

187

a 1,442

10

12 

14 

10 

8.8 

9.3 

7.8 

6.8

7.8 

7.7 

10 

11

10

11 

11 

11

9.6 

9.4

5.5

8.6

125

122 

88 

40 

43 

37 

32 

36

40 

36 

53 

66 

70 

72

77 

68 

109 

86 

110 

106

128

45

52

38 

13 

10 

8.1 

11 

5.5 

5.5

5.6 

7.5 

11 

15 

22 

26

25 

26 

34 

30 

37 

44

66

10

645

212 

136 

43 

16 

12 

6.4 

6.4

13 

27 

38 

75 

188 

238

126 

286 

339 

189 

260 

728

755

47

177

180 

192 

149 

129 

127 

102 

116

120 

108 

139 

164 

121 

127

147 

131 

147 

152 

139 

149

145

128

439

372 

198 

71 

51 

42 

21 

21

33 

51 

75 

100 

154 

184

190 

181 

366 

254 

356 

309 

261 

324

373 

468 

507 

373 

410 

341 

328 

329

67

940

270 

145 

26 

11 

10 

7.0 

6.0

12 

27 

47 

106 

292 

358

174 

425 

455 

250 

355 

1,120 

298 

588

850 

1,150 

1,200 

2,400 

455 

820 

238 

420

66

1.7

7.3 

2.1 

1.7 

1.6 

1.9 

1.5 

1.1

.9 

1.3 

1.6 

2.1 

3.7 

3.6

5.4 

4.6 

6.7 

10 

7.3 

6.5

5.1

1.8

-

.08

.11

,.

-

2,300

1,120 

691 

275 

203 

186 

131 

140

171 

211 

304 

456 

799 

954

681 

1,070 

1,390 

905 

1,200 

2,400

2,650

299

a Represents 93 percent of runoff for water year October 1951 to September 1952.
38 COLORADO RIVER BASIN

DOLORES RIVER BASIN Continued 

DOLORES RIVER AT GATEWAY, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

59

58

55

54

54

52

51

53

59

57

55

51

53

51

50

50

49

51

49

49

48

45

45

50

51

47

45

46

45

47

51

Nov.

47

39

40

40

43

38

39

40

40

41

44

45

43

43

38

37

33

34

34

36

37

38

41

41

38

38

38

38

38

36

--

39

Dec.

35

39

35

36

38

33

31

35

33

33

33

33

34

33

33

33

33

34

34

35

34

33

33

34

35

_

34

33

35

34

33

34

Jan.

33

32

33

33

34

33

33

33

33

33

32

37

35

34

34

36

34

34

35

~

35

33

34

35

35

34

33

34

34

35

33

34

Feb.

33

34

34

33

33

33

35

35

35

36

35

38

36

33

33

32

33

34

33

37

34

33

34

33

32

32

33

35

34

34

Mar.

37

36

37

36

38

39

42

41

43

43

_

36

38

36

35

39

_

37

38

36

33

36

34

38

45

44

45

45

49

48

39

Apr.

45

49

50

49

51

53

50

46

_

46

49

47

_

._

54

48

46

47

49

50

48

52

52

46

47

47

May

53

53

55

48

55

55

52

49

48

52

49

52

53

54

55

52

51

52

53

55

55

52

53

56

58

60

60

62

62

62

54

June

60

59

58

58

57

60

58

59

59

60

58

59

62

62

61

60

60

63

66

63

62

66

63

62

64

63

64

67

66

--

61

July

67

67

69

68

68

67

65

69

69

68

65

69

67

66

68

70

68

70

69

72

70

72

71

72

74

76

75

74

72

71

72

70

Aug.

74

73

71

71

72

73

73

73

69

70

70

69

69

69

70

69

70

73

72

71

70

68

69

69

72

72

70

68

68

67

70

Sept.

68

67

67

66

67

68

69

68

67

68

66

63

61

63

67

65

64

64

62

61

60

62

62

61

63

62

63

62

--

64
DOLORES RIVER BASIN--Continued 

DOLORES RIVER NEAR CISCO, UTAH

LOCATION.--At gaging station, 9 miles upstream from mouth and 14 miles southeast of Cisco, Grand County. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952.

Sediment records: March 1951 to September 1952. 

EXTREMES, 1951-52. Specif ic conductance: Maximum daily, 6,740 micromhos Oct. 6; minimum daily, 254 microm

Water temperatures: Maximum observed, 77°F Aug. 12, 17; minimum observed, freezing point Jan. 8, 11-12.

Sediment concentrations: Maximum daily, 17,500 ppm Apr. 7; minimum daily, 28 ppm Oct. 1-10.

Sediment loads: Maximum daily, 138,000 tons Apr. 18; minimum daily, 4 tons Oct. 1-10. 

EXTREMES, March 1951-September 1952. Specific conductance: Maximum daily, 6,760 micromhos Mar. 8, 1951; m

Water temperatures: Maximum observed, 80°F July 19, 1951.

Sediment concentrations: Maximum daily, 17,500 ppm Apr. 7, 1952; minimum daily, 13 ppm July 15, 1951.

Sediment loads: Maximum daily, 150,000 tons Aug. 30, 1951; minimum daily, 4 tons several days.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific co

fice at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given 

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951 . . 

Oct. 11-20.......

Oct 21 31

Nov. 11-20. ......

Nov. 22-24, 27, 30, 

Dec. 3. .........

Jan. 8, 10, 1952 . .

Jan. 14-20.......

Feb. 14-15, 17-20.

Fnh 91 9Q

Mar. 11-13, 18-20

Mar. 27-29 ......

Mean 

discharge 

(cfs)

50.5 

51.1 

96.5 

90.7 

96.1

99.8

120 

137 

283 

348 

196 

188 

164 

160 

160

208 

254 

198 

217 

355

Silica 

(SiO,)

4.6

7.1 

8.4

9.2 

7.8

8.1 

8.8

Iron 

(Fe)

Calcium 

(Ca)

126

121 

128

128 

100

101 

108

Magnesium 

(Mg)

64

53 

64

50 

42

41 

44

Sodium P°taS- 

/K_» slum 

(Na) (K)

806

689 

825

756 

434

449 

397

Bicarbonate 

(HCO.)

144

154 

158

188 

182

187

177 

194

Sulfate 

(S04 )

490

386

454

357 

257

294

358 

371

Chloride 

(Cl)

1,200

1,050 

1,250

1,160 

670

660

560 

935

Fluoride 

(F)

Nitrate 

(NO,)

13

11 

15

10 

5.2

9.3

8.9 

7.7

Boron 

(B)

--

--

0.50 

.18

-

-

Dissol

(

Parts 

per 

million

2,770

2,390 

2,820

2,560 

1,610

1,650

1,570

T

p

a

f

2

2
DOLORES RIVER BASIN Continued

DOLORES RIVER NEAR CISCO, UTAH Continued

Chemical analyses, in parts per million, water year October 1951 to September 1

Date of collection

Apr. 1-5, 1952 . . .

Apr. 11-20. ......

Apr. 21-30. ......

May 11-20 .......

June 2, 4-6, 10 ... 

June 11-20.......

June 21, 27-30....

July 14-19 .......

A ntr A 1

Aug. 12, 16-19 . . .

Sept. 11-20 ......

Sept. 27-30......

Weighted average

Mean 

discharge 

(eta)

708 

2,300 

5,543 

8,503

8,483 

6,203 

3,217 

5,058 

4,731 

1,948

1,797 

2,230 

790 

336 

520

461 

341 

292 

286 

244 

303

215 

134 

114 

191 

279 

248

a 1, 758

Silica 

(SiO,)

8.5 

9.3

10 

7.2

12

11

5.4

-

Iron 

(Fe)

Calcium 

(Ca)

56 

43

44 

37

65 

126

-

Magnesium 

(Mg)

9.7 

8.4

8.0 

6.7

19 

67

Sodium 

(Na)

Potassium 

(K)

27 

13

12 

15

135 

763

Bicarbonate 

(HCO.)

151 

119

140 

116

189 

124

155

-

Sulfate 

(S04)

73 

49

35 

35

84 

141

464

--

Chloride 

(Cl)

26 

15

12 

14

58 

200

1,160

-

Fluoride 

(F)

Nitrate 

(NO,)

1.8 

2.0

1.2

1.0

4.3 

3.5

4.0

Boron 

(B)

0.05

--

--

.11

--

Disso

Parts 

per 

million

276 

198

191

173

636

2,670

T

a

a Represents 87 percent of runoff for water year October 1951 to September 1952.
DOLORES RIVER BASIN 41

DOLORES RIVER BASIN Continued 

DOLORES RIVER NEAR CISCO, UTAH Continued 

Temperature (°F) of water, water year October 1951 to September :

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

60

63

58

55

52

55

53

51

60

58

61

54

55

52

52

54

53

51

51

52

50

48

53

52

--

51

48

50

45

45

53

Nov.

49

--

45

44

42

40

45

43

46

46

45

46

--

40

38

40

41

39

36

..

39

41

43

--

..

40

--

39

Dec.

40

Jan.

_

_

32

33

32

32

32

33

34

33

34

33

34

35

36

35

35

36

35

36

35

35

34

--

Feb.

35

_

38

39

38

37

_

..

35

36

._

37

36

35

36

38

40

37

36

37

36

35

36

--

--

Mar.

36

_-

_

36

36

_

42

42

40

40

40

41

42

42

41

40

42

43

42

45

48

49

50

50

Apr.

50

53

54

_

49

54

48

49

48

49

52

52

50

50

51

50

50

49

51

51

52

51

52

50

51

--

51

May

52

51

52

53

55

55

56

54

56

56

59

58

56

58

57

57

58

56

58

57

56

57

58

57

58

60

59

56

June

60

_

60

62

61

_

._

59

60

61

61

62

62

61

62

_

64

63

_

_

_

..

65

_

66

July

66

66

67

67

67

65

66

66

65

66

_

_

66

67

67

68

70

73

73

71

_

68

70

71

70

Aug.

_

_

74

73

_

74

73

75

77

_

__

75

77

76

74

76

75

_

_

_

_

72

--

Sept.

72

73

71

._

..

_

72

71

70

69

68

70

66

66

67

66

65

65

65

65

66

64

66

65

65

64
42 COLORADO RIVER BASIN

DOLORES RIVER BASIN Continued

DOLORES RIVER NEAR CISCO, UTAH Continued

Suspended sediment, water year October 1951 to September 1952

Day

12

15 

16 

1ft

21 

4Q

24

no

31 

Total8 

9 

11 

12

13 

15 

16 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge

(cfs)

34 

36 

64 

51 

53 

55 

53 

55 

53 

51

47 

45 

42 

43 

42

40 

43 

64 

71 

74

79 

76 

79 

76 

74

88 

115 

162 

123 

98 

92

2,078

Suspended sediment

Mean 

concentration 

(ppm)

28 

57

150 

177 

140

I 107

100 

250 

2,090 

1,780

Tons 

per 

day

4

8

a 32 

36 

a 30

25

44 

83 

553

442

1,440

January

250 

190 

170 

150 

130

125 

120 

120 

120 

120

125

135 

150 

190 

270

250 

220 

250 

350 

450

350 

250 

190 

270 

400

560 

480 

287 

211 

188 

188

7,259

660 

450 

350 

260 

210 

200 

200 

194 

560 

780

670 

620 

630 

900 

870

920 

1,530 

1,640 

1,690 

1,550

1,510 

1,680 

3,770 

3,190 

3,000

3,440 

1,800 

1,520 

700 

600 

550

a 450 

a 230 

a 160 

a 100 

a 74

a 68 

a65 

63 

a!80 

253

226 

226 

255 

462 

634

621 

909 

1,110 

1,600 

1,880

1,430 

1,130 

1,930 

2,330 

a 3, 200

5,200 

2,330 

1,180 

399 

305 

279

29, 279

November

Mean

charge

(cfs)

98 

95 

92 

92 

85

92 

88 

88 

85 

92

95 

95 

95 

104 

107

111 

104 

98 

76 

76

79 

79 

107 

123 

119

115 

101 

88 

92 

85

2,856

Suspended sediment

Mean 

concentration 

(ppm)

900 

560

89

97 

90 

116 

76 

75

73

Tons 

per 

day

238 

a 140

21

25 

e23 

30 

21 

22

19 

30

1,018

February

183 

193 

188 

183 

172

162 

157 

167 

162 

162

157 

167 

172 

172 

157

143

147 

162 

167 

152

152 

162 

167 

188 

157

147 

152 

147 

172

4,769

490 

490 

400 

340 

290 

280 

210 

250 

230 

210

200 

210 

200 

180 

180

170 

160 

150 

146 

150

140 

162 

250 

270 

162

190 

190 

90 

55

242 

225 

a 203 

168 

135 

122 

89 

113 

a 100 

a 92

a 85 

a 95 

a 93

84 

76

a 66 

64 

66 

66 

62

57 

71 

113 

137 

69

75 

a 78 

36 

26

2,938

December

Mean

charge

(cfs)

104 

107 

123 

127 

131

120 

105 

90 

78 

74

72 

69 

71 

74 

76

80 

84 

88 

94 

90

100 

100 

105 

110 

120

140 

130 

130 

135 

160 

270

3,357

Suspended sediment

Mean 

concentration 

(ppm)

89

85 

1,000

Tons 

per 

day

28

a23

a 730

1,445

March

193 

198 

198 

193 

178 

178 

183 

193 

230 

336

320 

256 

230 

224 

204

198 

198 

263 

230 

224

279 

230 

204 

198 

198

193 

244 

354 

468 

468 

517

7,780

60 

60 

60 

47 

60 

40 

29 

270 

1,010 

1,260 

2,470 

3,420 

2,330 

2,200 

800

650 

602 

530 

582 

451

472 

360 

200 

190 

228

260 

2,710 

3,240 

3,750 

8,530 

7,100

--

31 

a 32 

a 32 

24 

29 

a 19 

14 

141 

627 

1,140

2,130 

2,360 

1,450 

a 1,300 

a 440

a 350 

322 

376 

361 

273

356 

224 

110 

102 

122

135 

1,790 

3,100 

4,740 

10, 800 

9,910

42, 840

e Estimated.

a Computed from estimated concentration graph.
DOLORES RIVER BASIN 43

DOLORES RIVER BASIN Continued 

DOLORES RIVER NEAR CISCO, UTAH Continued 

Suspended sediment, water year October 1951 to September 1952--Continued

Day

2

10 

12

91

22

AQ

27

9fl

31 ......

Total2

9 .....

11 

12

15 -----

16 ----- 

17 - ___ 

18 

19 

20 

21 

22 

23 ----- 

24 

25 -----

26 ----- 

27 

28 ----- 

29 ----- 

SO ----- si 

Total

April

Mean

charge

(cfs)

492 

560 

650 

840 

1,000

1,300 

2,300 

3,500 

4,000 

3,500

3,700 

3,500 

2,760 

2,970 

4,690

6,800 

8,000 

9,000 

9,350 

9,220

8,550 

7,650 

8,250 

8,020 

9,020

9,320 

9,380 

9,700 

8,880 

6,600

163, 502

Suspended sediment

Mean 

concentration 

(ppm)

5,300 

5,100 

5,000 

9,250 

9,750

11, 000 

17,500 

10, 000 

5,500 

4,500

3,900 

3,800 

3,800 

6,000 

9,400

7,450 

6,300 

5,660 

5,250 

4,850

3,600 

4,350 

4,300 

4,140 

4,150

4,650 

3,200 

2,200 

2,500 

4,150

Tons 

per 

day

7,040 

7,710 

8,780 

21,000 

26,300

a 39, 000 

109, 000 

a 94, 000 

a 59, 000 

a 43, 000 

39, 000 

35, 900 

28, 300 

48, 100 

119,000

137, 000 

136, 000 

138, 000 

133, 000 

121,000

83, 100 

89, 800 

95,800 

89,600 

101,000

117, 000 

a 81, 000 

57, 600 

59, 900 

74,000

2,198,930

July

1,300 

1,250 

1,250 

1,150 

1,040

2,050 

3,180 

2,880 

2,290 

2,350

2,230 

1,640 

1,330 

1,320 

930 

806 

661 

541 

480 

394 

384 

364 

364 

374 

374

364 

364 

384 

529 

726 

589

33, 888

170 

300 

170 

159 

150

2,940 

10, 400 

5,000 

1,660 

2,110

3,140 

810 

150 

140 

155 

150 

145 

74 

50 

50 

60 

70 

65 

80 

90

100 

90 

350 

1,50" 

6,000 

5,000

--

Total discharge for year (cfs 

Total load for year (tons)

597 

1,010 

574 

494 

421

as 21, 000 

as 90, 000 

38, 900 

10, 300 

s 13, 600

s 20, 200 

a 3, 600 

a 540 

499 

389 

326 

259 

108 

65 

a 53 

a 62 

69 

64 

a81 

a91

a 98 

a 88 

a 360 

a 2, 100 

a 12, 000 

a 8, 000

225, 948

May

Mean

charge

(cfs)

6,420 

6,670 

7,500 

9,020 

10, 200

10, 400 

10,200 

9,080 

8,020 

7,680 

6,880 

6,670 

6,760 

6,880 

7,140

7,090 

6,530 

5,540 

4,710 

4,090

3,990 

3,910 

3,750 

3,220 

2,760

2,650 

2,740 

2,900 

3,220 

3,560 

3,640

183, 820

Suspended sediment

Mean 

concentration 

(ppm)

2,480 

1,460 

1,630 

2,140 

2,770

3,500 

2,780 

1,640 

2,250 

1,880

2,080 

1,320 

1,770 

1,900 

1,360

1,500 

1,610 

1,100 

2,030 

2,200

1,720 

1,100 

949 

1,130 

950

940 

1,120 

1,870 

2,000 

1,300 

1,180

Tons 

per 

day

43, 000 

26, 300 

33, 000 

52, 100 

76, 300

98, 300 

76, 600 

40, 200 

48, 700 

39, 000

38, 600 

23, 800 

32, 300 

35, 300 

26, 200

28, 700 

28, 400 

16, 500 

25, 800 

a 24, 000

18, 500 

11,600 

9,610 

9,820 

7,080

6,730 

8,290 

14,600 

17,400 

12, 500 

11,600

940, 830

August

476 

492 

414 

374 

336

328 

312 

304 

295 

304

424 

320 

376 

271 

295 

312 

304 

271 

250 

244

294 

393 

331 

471 

374

304 

312 

532 

312 

295 

304

10, 624

4,200 

4,340 

700 

200 

147

85 

39 

51 

60 

90

800 

850 

750 

670 

780 

870 

315 

150 

215 

165 

785 

1,110 

255 

1,180 

560 

440 

350 

1,240 

600 

400 

300

--

a 5, 400 

5,770 

a 780 

202 

133

75 

33 

42 

a 48 

a 74

a 920 

734 

761 

490 

621 

733 

259 

110 

145 

109 

s706 

as 1,380 

as 239 

as 1, 800 

565

a360 

295 

as 2, 460 

505 

a 320 

a 250

26, 319

June

Mean

charge

(cfs)

3,970 

3,990 

4,190 

4,630 

5,600

5,640 

5,430 

5,710 

5,800 

5,730 

5,730 

5,730 

5,430 

5,010 

4,810

4,850 

4,730 

4,090 

3,600 

3,490

3,500 

3,370 

2,990 

2,740 

2,520

2,270 

1,980 

1,800 

1,570 

1,390

122, 290

Suspended sediment

Mean 

concentration 

(ppm)

1,300 

1,410 

1,500 

2,000 

2,600

2,570 

2,200 

2,100 

2,200 

1,870 

1,660 

1,530 

1,790 

1,570 

1,610

1,680 

1,520 

1,130 

1,040 

975

935 

860 

730 

680 

520

340 

344 

262 

252 

248

Tons 

per 

day

a 14, 000 

15, 200 

a 17, 900 

a 25, 000 

a 39, 000

39, 100 

a 32, 000 

a 32, 000 

a 34, 000 

28,900 

25, 700 

23,700 

26, 200 

21, 200 

20,900

22, 000 

19, 400 

12, 500 

10, 100 

9,190

8,840 

a 7, 800 

a 5, 900 

a 5, 000 

a 3, 500

a 2, 100 

1,840 

1,270 

1,070 

931

505, 341

September

244 

218 

183 

172 

157

147 

143 

139 

131

115

111 

104 

104 

107 

111 

107 

101 

145 

123 

123

131 

167 

278 

287 

250

379 

320 

263 

230 

198

5,288

156 

140 

100 

100 

95

70 

70 

60 

50 

35

35 

60 

140 

130 

160 

161 

113 

75 

190 

128

140 

143

243

103 

82 

49 

a 46 

a 40

a 28 

a 27 

23 

18 

11

10 

17

39 

a 38 

a48 

47 

31 

29 

63 

43

a 50 

64

173

2,290

547,511 

3, 978, 648

s Computed by subdividing day.

a Computed from estimated concentration graph.
DOLORES RIVER BASIN Continued 

DOLORES RIVER NEAR CISCO, UTAH Continued

Particle-size analyses of suspended sediment, March to September 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, siev

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Mar. 30, 1952 . .

Mar. 30. .......

Apr. 18 ........

Apr. 30........

May 5. .........

May 25. ........

Aug 20

Sept. 12. .......

Time

12:30 p. m. 

12:30 p.m. 

12:30 p.m. 

12:30 p.m. 

11:30 a.m. 

2:45 p.m. 

10:30 a.m.

3:30 p.m. 

2:30 p. m. 

11:00 a.m. 

11:30 a.m. 

10:30 a. m.

Water 

discharge 

(Ots)

468 

468 

468 

468 

8,280 

8,080 

6,070

10,600 

7,300 

2,730 

244 

104

Water 

temperature 

<°F)

Suspended sediment

Concentration 

of sample 

(ppm)

8,790 

8,790 

8,790 

8,790 

6,020 

4,270 

4,170

3,860 

2,210 

901 

114 

37

Concentration 

of suspension 

analyzed 

(ppm)

3,920 

4,240 

4,720 

4,480 

4,160 

2,920 

3,000

3,220 

2,490

Percent finer than 

0.002

5 

55

0.004

77 

6 

6 

83 

25 

14 

15

26 

14

0.008

90

0.016

94 

96

95 

40 

23 

21

39 

22

0.031

96 

97
COLORADO RIVER MAIN STEM--Continued 

COLORADO RIVER NEAR CISCO, UTAH

LOCATION. At gaging station, 1 mile downstream from Dolores River, 11 miles south of Cisco, Grand County

upstream from San Juan River.

DRAINAGE AREA. 24,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1952.

Water temperatures: May 1949 to September 1952. Sediment records: May 1930 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,490 ppm Oct. 21-31; minimum, 208 ppm June 11-20.

Hardness: Maximum, 691 ppm Oct. 11-20; minimum, 131 ppm June 11-20.

Specific conductance: Maximum daily, 2,100 micromhos Oct. 26-27; minimum daily, 310 micromhos June 15

Water temperatures: Maximum observed 77°F Aug. 9, 16-17; minimum observed, freezing point Jan. 12.

Sediment concentrations: Maximum daily, 66,300 ppm Oct. 27; minimum daily, 28 ppm Oct. 15.

Sediment loads: Maximum daily, 390,000 tons July 7; minimum daily, 175 tons Oct. 15. 

EXTREMES, 1928-52. Dissolved solids: Maximum, 2,670 ppm Aug. 11-20, 1940; minimum, 202 ppm June 11-20, 

Hardness: (1926-35, 1943-52): Maximum, 1,090 ppm Sept. 1-10, 1934; minimum. 131 ppm June 11-20, 1952.

Specific conductance (1941-52): Maximum daily, 4,100 micromhos Sept.30, 1946; minimum daily, 310 micro

Water temperatures (1949-52): Maximum observed, 81*F Aug. 5, 1949; minimum observed, freezing point on 

Sediment concentrations (1930-52): Maximum daily, 66,300 ppm Oct. 27, 1952; minimum daily, 14 ppm Nov. 

Sediment loads (1930-52): Maximum dally, 2,790,000 tons Oct. 14, 1941; minimum daily, 84 tons Apr. 16, 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conducta

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WSP 

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951 .... 

Oct. 11-20 .........

Oct. 21-31 .........

Nov. 11-20 .........

Nov. 21-25, Dec. 4 .

Jan. 21-31 .........

Feb. 11-20.........

Feb. 24-28 .........

Mar. 3-4, 6-9 ......

Mar. 11-20. ........

Mar. 21-31 ........

Apr. 1-3, 5-7 ......

Apr. 11-20.........

Apr. 21-30.........

Mean 

discharge 

(cfs)

2,717 

2,419 

3,078 

3,018 

3,058 

2,987

5,200 

2,868 

3,236 

2,820 

2,742 

2,492

2,887 

2,981 

3,568 

4,833 

14, 480 

28,380

Silica 

(Si02)

15 

13 

15 

16 

16 

16

16 

13

15 

13 

14

13 

12 

12 

11 

13 

12

Iron 

(Fe)

Calcium 

(Ca)

154 

160 

164 

148 

135 

130

128 

104 

111 

115 

115

119 

108 

100 

99 

70 

49

Magnesium 

(Mg)

68 

71 

65 

64 

56 

57

52 

44 

49 

53 

51

51 

47 

43 

37 

17 

12

Sodium 

(Na)

193 

202 

204 

183 

179 

191

206 

162 

215 

219 

197

208 

197 

170 

138 

46 

23

Potassium 

(K)

7.8 

7.7 

8.5 

7.4 

6.9 

7.1

7.8 

6.4 

8.2 

8.1 

6.7

7.3 

7.3 

6.5 

6.7 

4.1 

2.8

Bicarbonate 

(HCO.)

214 

216 

216 

231 

219 

207

169 

219 

188 

201 

207 

204

204 

202 

186 

196 

181 

142

Carbonate 

(CO,)

Sulfate 

(S04)

643 

686 

683 

587 

542 

536

408 

481 

421 

444 

468 

467

467 

426 

394 

348 

132 

78

Chlorids 

(Cl)

165 

170 

185 

155 

159 

170

104 

209 

145 

230 

230 

201

212 

210 

164 

120 

40 

15

Fluoride 

(F)

Nitrate 

(NO,)

8.7 

8.7 

8.9 

8.8 

9.8 

10

11 

9.2 

9.6 

1.5 

1.4

1.4 

1.3 

1.0 

.9 

3.4

Boron 

(B)

0.12

.13 

.07

a Not included for computation of weighted averages.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CISCO, UTAH Continued 

Chemical analyses, in parts per million, water year October 1951 to September 1

Date of collection

May 1-10, 1952.....

May 21-31 .........

June 1-3, 5-6. ......

June 11-20 .........

June 21, 23, 27-29 . . 

July 1-4, 9 .........

July 11-20. ......... 

July 21-24, 30-31 . . . 

Aug. 1-10 .......... 

Aug. 11-20 .........

Aug. 21-24, 30-31 . .

Sept. 3-7, 9-13..... 

Sept. 21-30 ........

Weighted average . .

Mean 

discharge 

(cfs)

41,480 

38, 920 

25, 550 

38, 600 

46, 530 

25, 340

16,760 

16,200 

6,160 

6,247 

6,011 

5,639 

5,812

3,547 

3,749

c 11, 380

Silica 

(S10.)

14 

13 

13 

11 

11 

11

11 

11 

12 

12 

14 

13 

14

14 

14

13

Iron 

(Fe)

Calcium 

(Ca)

45 

42 

50 

43 

38 

44

54 

77 

79 

93 

103 

115 

114

128 

140

63

Magnesium 

(Mg)

10 

10 

13 

11 

8.7 

12

16 

22

27 

33 

37 

39 

41

53 

55

20

Sodium 

(Na)

17 

19 

27 

19 

16 

27

40 

' 

70 

97 

111 

103 

116

156 

150

54

Potassium 

(K)

2.7 

1.9 

2.1 

1.7 

2.2 

2.2

2.8 

0 

3.4 

5.1 

5.4 

4.4 

5.7

5.7 

5.9

3 3

Bicarbonate 

(HCO,)

144 

130 

138 

123 

111 

118

125 

213 

152 

162 

177 

178 

189

193 

197

148

Carbonate 

(CO,)

Sulfate 

(S04)

56 

59 

92 

70 

54 

88

128 

187 

245 

310 

354 

398 

397

505 

545

162

Chloride 

(Cl)

11 

13 

20 

13 

11 

20

34 

45 

60 

82 

96 

81 

89

136 

112

45

Fluorlde 

(F)

Nitrate 

(NO,)

1.5 

1.4 

1.5 

1.7 

1.0 

1.3

1.5 

.4 

2.8 

2. 6 

4.4 

4.9 

4.4

6.6 

6.8

2.6

Boron 

(B)

0.13

P

b Sum of determined constituents.

c Represents 81 percent of runoff for water year October 1951 to September 1952.
COLORADO RIVER MAIN STEM 47

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR CISCO, UTAH Continued

Temperature (°F) of water, water year October 1951 to September 1952

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

Average

Oct.

..

58

57

55

55

54

57

59

54

60

58

54

53

51

53

53

51

52

52

51

50

50

50

51

48

45

45

46

49

46

52

Nov.

_

41

43

45

42

43

45

44

43

44

41

40

40

37

35

35

37

40

42

40

39

_

--

Dec. Jan.

33

..

_

--

_

33

33

32

33

34

34

33

34

34

33

35

35

35

36

34

33

34

33

33

35

Feb.

34

35

_

..

_

33

35

36

35

36

35

34

34

..

_

35

34

_

__

35

36

36

35

34

_

Mar.

_

35

36

42

_

42

"

41

_

41

42

--

39

40

41

41

41

40

42

40

41

40

42

_

48

50

51

48

Apr.

48

51

49

_

49

47

52

-_

--

48

_

50

50

51

..

50

52

51

51

50

50

50

48

50

53

52

53

52

--

May

50

53

54

54

_

56

55

55

"

_

56

56

_

58

56

_

56

55

56

55

56

58

56

56

58

59

--

June

59

58

59

_

59

60

"

60

60

62

60

61

62

63

_

64

63

_

63

_

._

63

63

63

__

July

65

64

65

66

~

_

65

_

__

_

..

67

68

67

68

68

69

_

_

~

Aug.

..

70

68

_

--

70

71

75

77

76

75

__

76

75

76

77

77

75

74

73

72

73

71

_.

_

_

70

70

Sept.

._

70

72

70

71

72

._

69

69

68

67

67

..

_

_

65

64

65

63

64

64

64

_

63
48 COLORADO RIVER BASIN 

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CISCO, UTAH Continued 

Suspended sediment, water year October 1951 to September 1952

Day

9 ......

12 ......

13 ----- -

ifi

18

n«

24

25

27

no

Oft

30 -

31 ......

Total2

3

8 

Q

13 

14 

15 .....

16 -----

|p

19 ..... 

20 

21 

22 .. 

23 ----- 

24 

25 

26 

27 ----- 

28 

29 

30 ----- 

31 

Total

October

Mean

charge 

(cfs)

2,340 

2,500 

2,660 

2,620 

2,740

3,010 

2,980 

2,980 

2,850 

2,490

2,350 

2,570 

2,420 

2,300 

2,320

2,490 

2,450 

2,250 

2,540 

2,500

2,490 

2,590 

2,570 

2,470 

2,500

3,470 

4,600 

3,680 

3,340 

3,230 

2,920

85, 220

Suspended sediment

Mean 

concentration 

(ppm)

500 

400 

364 

360 

600

410 

340 

328 

237 

175 

114 

72 

122 

43 

28

33 

63 

69 

54 

55

50 

40 

41 

30 

30

34,000 

66,300 

1,790 

1,540 

1,350 

700

Tons 

per 

day

a 3, 200 

a 2, 700 

2,610 

2,550 

4,440

3,330 

2,740 

2,640 

1,820 

1,180

723 

500 

797 

267 

175

222 

417 

419 

370 

371

a 340 

280 

284 

200 

202

s 35, 600 

s 68, 200 

17,800 

13,900 

11,800 

5,520

185, 597

January

5,200 

3,400 

3,150 

2,650 

2,400

2,500 

2,400 

2,400 

2,450 

2,500

2,600 

2,700 

2,800 

3,000 

3,300 

3,500 

3,500 

3,450 

3,400 

3,300

3,200 

3,150 

3,100 

3,000 

3,200

3,350 

3,500 

3,600 

3,300 

3,200 

3,000

96,200

120 

163 

130 

100

100 

100 

100 

150 

221

135

76 

95 

464 

732 

417 

434 

570 

635 

640 

660 

663 

632 

480 

433 

481 

421

--

b 40, 000 

1,100 

1,390 

a 930 

a 650

a 680 

a650 

a 650 

a 990 

1,490

1,050

718 

898 

4,320 

6,720 

3,720

3,750 

4,850 

5,310 

a 5, 200 

a 5, 700

6,000 

5,970 

4,670 

3,660 

4,160 

3,410

123,036

November

Mean

charge

(cfs)

2,810 

2,960 

2,900 

2,900 

2,990

3,260 

3,050 

3,070 

3,160 

3,080

3,140 

3,170 

3,190 

2,990 

3,100

3,210 

3,160 

3,010 

2,760 

2,850

2,490 

2,500 

3,210 

3,430 

3,300

3,080 

3,100 

2,890 

2,400 

2,690

89,850

Suspended sediment

Mean 

concentration 

(ppm)

350 

310 

134 

153 

109

72 

89

101 

82

--

Tons 

per 

day

a 2, 700 

a 2, 500 

1,050 

1,200 

880

634 

750

803

687

e640 

e530 

e600

26, 530

February

2,900 

2,800 

3,000 

3,100 

3,050

2,900 

2,650 

2,500 

2,600 

2,700

2,750 

2,700 

2,700 

2,800 

2,750

2,650 

2,710 

2,760 

2,920 

2,680

2,500 

2,620 

2,800 

2,900 

2,620

2,470 

2,190 

2,280 

2,470

78,470

511 

537 

580 

619 

685

660 

600 

570 

810 

800

690 

639 

730 

710 

790 

620 

820 

1,370 

1,290 

1,200

1,100 

1,200 

990 

560 

500 

400 

280 

290 

300

4,000 

4,060 

a 4, 700 

5,180 

5,640

a 5, 200 

a 4, 300 

3,850 

5,690 

5,830

5,120 

4,660 

5,320 

5,370 

5,870

4,440 

a 6, 000 

10,200 

10,200 

a 8, 700

37,400 

a 8, 500 

a7,500 

4,380 

3,540

2,670 

1,660 

1,790 

32,000

153,770

December

Mean

charge

(cfs)

2,800 

2,800 

2,810 

2,990 

2,960

2,980 

2,880 

2,700 

2,400 

2,150

2,000 

2,050 

2,100 

2,500 

3,000

2,750 

2,500 

2,600 

2,500 

2,550

2,150 

2,750 

2,900 

3,200 

3,150

3,050 

2,900 

2,700 

2 600

3,500 

5,800

86,720

Suspended sediment

Mean 

concentration 

(PP«J>)

--

--

Tons 

per 

day

b540

b5,000 

b 80, 000

100, 660

March

2,620 

2,690 

2,800 

2,800 

2,690

2,730 

2,830 

2,990 

3,170 

3,280

3,390 

3,290 

2,760 

2,800 

2,780

2,810 

2,900 

3,230 

2,960 

2,890

3,070 

3,030 

2,960 

2,890 

2,980

3,140 

3,640 

3,970 

4,230 

4,450 

4,890

97,660

390 

350 

310 

272 

340

850 

2,600 

2,840 

3,880 

3,470

3,500 

3,100 

2,000 

730 

600 

810 

920 

1,200 

1,000 

820

210 

166 

191 

86 

67

87 

400 

1,380 

3,220 

3,320 

3,300

a 2, 800 

a 2, 500 

2,340 

2,060 

a 2, 500

6,270 

19, 900 

22,900 

33, 200 

30,700

32,000 

a 28, 000 

14,900 

5,520 

a 4, 500

6,150 

7,200 

10,500 

7,990 

6,400

1,740 

1,360 

1,530 

671 

539

738 

a 3, 900 

14,800 

36,800 

39,900 

43, 600

393,908

e Estimated.

s Computed by subdividing day.

a Computed from estimated concentration graph.

b Computed from water-sediment discharge curve.
COLORADO RIVER MAIN STEM 49

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER HEAR CISCO, UTAH Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

3 ......

12 ......

I ft

n«

25

31 

Total11 

13 - 

14 ----- 

15 

17 

1ft

net

21

22 

23 ----- 

24 ----- 

25 

26 

27 

28 

29 

30 ----- 

31 

Total

April

Mean

charge

(cfs)

4,760 

4,450 

4,270 

4,470 

4,600

5,020 

5,900 

7,720 

9,870 

9,100

9,600 

9,690 

8,980 

9,360 

11,400

14, 300 

16,900 

19, 200 

21,700 

23,700 

24,300 

24,300 

24,900 

24,000 

26,000

28, 800 

31,100 

33,900 

36,200 

30,300

488,790

Suspended sediment

Mean 

concentration 

(ppm)

3,190 

2,390 

2,210 

2,700 

5,510

6,200 

8,530 

9,100 

7,500 

5,700 

3,200 

2,620 

2,060 

3,080 

4,700

6,180 

7,150 

6,000 

6,210 

3,520

2,210 

2,280 

4,600 

3,320 

4,150

4,590 

2,320 

2,000 

2,310 

1,800

Tons 

per 

day

41,000 

28,700 

25,500 

a33,000 

68,400

84,000 

136,000 

a 190, 000 

a 200, 000 

140,000 

82,900 

68, 500 

49,900 

77,800 

145, 000

239,000 

326,000 

311,000 

364,000 

225,000

145,000 

150,000 

309,000 

215,000 

291,000

357,000 

195,000 

183,000 

226,000 

l 150, 000

5,056,700

July

18, 100 

17,700 

16,700 

15,500 

14,700

14,800 

17,600 

18,000 

15,800 

14,500

13, 500 

12,400 

11,600 

10,600 

9,630

8,610 

7,790 

6,980 

6,470 

5,990

5,740 

5,430 

5,020 

4,850 

4,720 

4,890 

5,430 

6,360 

7,430 

8,000 

8,440

323, 280

236 

198 

178 

183 

180

1,600 

8,200 

4,500 

800 

300

850 

620 

580 

520 

280 

164 

232 

200 

123 

78 

75 

69 

46 

71 

70

650

1,400 

2,500 

3,550 

1,300

--

Total discharge for year (cfsTotal load for year (tons)

11,500 

9,460 

8,030 

7,660 

a7,100

63,900 

390,000 

1220,000 

34,100 

11,700

a31,000 

20,800 

18,200 

a 15, 000 

7,280

3,810 

4,880 

a 3, 800 

2,150 

1,260 

1,160 

1,010 

623 

930 

a 890

a 8, 600 

e 12, 000 

a 24, 000 

a 50, 000 

76,700 

29,600

1,077,143

May

Mean

charge

(cfs)

26, 900 

26,700 

29,900 

37, 300 

44,700

50,600 

53,900 

51,100 

47,700 

46,000

40,900 

37,900 

38,000 

39,700 

42,600

44,800 

44,700 

39,000 

33, 100 

28,500

27,500 

27,400 

26,000 

23, 300 

21,400

21,600 

23,100 

24,600 

26,600 

28,800 

30,700

1,085,000

Suspended sediment

Mean 

concentration 

(ppm)

1,460 

1,530 

2,320 

2,340 

2,000

1,810 

2,000 

,100 

,180 

,400

,600 

,790 

,900 

2,000 

2,100

2,050 

1,900 

1,750 

1,700 

1,730

1,500 

1,400 

1,350 

1,300 

1,250

1,200 

864 

600 

373 

453 

400

Tons 

per 

day

106,000 

110,000 

187,000 

236,000 

a 240, 000

247,000 

291,000 

152,000 

152,000 

a 170, 000

a 180, 000 

183,000 

a 190, 000 

a 210, 000 

242,000

248,000 

a 230, 000 

184,000 

a 150, 000 

133, 000

a 110, 000 

104,000 

94,800 

a 82, 000 

a72,000

70,000 

53,900 

a 40, 000 

26,800 

35,200 

a 33, 000

4,562,700

August

8,000 

7,640 

7,080 

6,570 

5,900 

5,300 

5,080 

4,740 

4,890 

4,910

5,360 

5,970 

6,550 

6,170 

5,940

5,970 

5,630 

5,170 

4,700 

4,930

5,170 

5,690 

6,170 

6,500 

6,340 

5,830 

5,650 

5,720 

5,430 

5,300 

6,040

180,340

915 

870 

600 

620 

580

540 

500 

480 

520 

390

800 

800 

570 

450 

320

380 

310 

330 

210 

2,220 

2,000 

3,080 

3,640 

2,500 

1,500

1,500 

1,500 

1,000 

900 

810 

1,020

._

19,900 

17,900 

11,500 

all, 000 

a 9, 200

a7,700 

a6,900 

a 6, 100 

6,870 

5,170

11,600 

a 13, 000 

10, 100 

7,500 

5,130

6,130 

4,710 

a 4, 600 

2,660 

29,600 

27,900 

47,300 

60,600 

43,900 

a 26, 000

a 24, 000 

a 23, 000 

a 15, 000 

a 13, 000 

11,600 

16,600

506,070

June

Mean

charge

(cfs)

32,000 

33,400 

35,900 

39,000 

44,600

47,100 

48,800 

52,500 

55,700 

56,300

55,000 

55,300 

54,200 

50,500 

47,100

46,700 

47,400 

41,100 

35,300 

32,700

33,400 

32,100 

29,300 

28,000 

26,000

25,000 

22,700 

21,600 

19,700 

18,400

166,800

Suspended sediment

Mean 

concentration 

(ppm)

316 

500 

1,500 

1,500 

1,200

1,400 

1,800 

1,800 

1,600 

1,300

1,180 

1,210 

900 

850 

560

620 

900 

900 

900 

903 

982 

810 

704 

580 

500

420 

351 

322 

349 

290

Tons 

per 

day

27,300 

45,100 

145,000 

a 160, 000 

145,000

178,000 

a 240, 000 

a 260, 000 

a 240, 000 

a 200, 000

175,000 

181,000 

132,000 

116,000 

73,800

78,200 

115,000 

a 100, 000 

a 86, 000 

79,700

88,600 

a 70, 000 

55,700 

a 44, 000 

a 35, 000

a 28, 000 

21,500 

18, 800 

18,600 

a 14, 000

3,171,300

September

5,500 

5,080 

4,720 

4,450 

4,110

3,810 

3,580 

3,430 

3,320 

3,120

2,920 

2,780 

2,660 

2,660 

2,730

2,960 

3,160 

3,080 

3,010 

2,990

3,300 

3,340 

3,780 

4,250 

4,050 

3,990 

3,910 

3,780 

3,600 

3,490

107,560

700 

500 

400 

170 

200

231 

258 

250 

250 

150

83 

67

531 

69

..

................................................................

a 10, 000 

a6,900 

5,100 

2,040 

2,220 

2,380 

2,490 

a 2, 300 

a 2, 200 

a 1,300 

654 

503

\ e460 

I e2,400 

5,260 

709

76,791

3, 885, 890 

5, 434, 205

e Estimated.

a Computed from estimated concentration graph.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CISCO, UtAH Continued

Particle-size analyses of suspended sediment, March to Septembe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date 

of 

collection

Mar. 28, 1952...

Sept. 21 ........

Sept. 21 ........

Sept. 21 ........

Time

2:00 p.m. 

9:00 a. m. 

6:00 p. m. 

6:00 p. m. 

6:00 p. m. 

6:00 p. m.

Water 

discharge 

(cfs)

3,530 

21,600 

3,080 

3,080 

3,080 

3,080

Water 

temperature 

(°F)

Suspended sedime

Concentration 

of sample 

(ppm)

943 

1,080 

2,640 

2,640 

2,640 

2,640

Concentration 

of suspension 

analyzed 

(ppm)

4,560

3,470 

3,570 

2,720 

2,670

Percent finer th

0.002

--

42 

2

0.004

51

55 

5 

57 

4

0.008

"

69 

13

0.016

72

77 

78 

81

0.03
GREEN RIVER BASIN Continued 

GREEN RIVER NEAR GREEN RIVER, WYO.

LOCATION. At bridge on Green River-Linwood highway, about 1 mile upstream from gaging station near Gre

downstream from Bitter Creek, 1 mile southeast of town of Green River, and 4 miles upstream from hig

DRAINAGE AREA.--10,000 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: May 1951 to September 1952.

Water temperatures: May 1951 to September 1952.

Sediment records: May 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 586 ppm Nov. 21-30; minimum 163 ppm June 11-20.

Hardness: Maximum, 323 ppm Nov. 21-30; minimum, 116 ppm June 11-20.

Specific conductance: Maximum daily, 1,010 micromhos Nov. 22; minimum daily, 240 micromhos June 11.

Water temperatures: Maximum observed, 75"F July 26; minimum observed, freezing point on many days du

Sediment concentrations: Maximum daily, 1,640 ppm Apr. 19; minimum daily, 10 ppm Oct. 1.

Sediment loads: Maximum daily, 32,900 tons July 15; minimum daily, 22 tons Feb. 11-29. 

EXTREMES, May 1951 to September 1952: Dissolved solids: Maximum, 586 ppm Nov. 21-30, 1951; minimum, 1

Hardness: Maximum, 323 ppm Nov. 21-30, 1951; minimum, 116 ppm June 11-20, 1952.

Specific conductance: Maximum daily, 1,010 micromhos Nov. 22, 1951; minimum daily, 240 micromhos Jun

Water temperatures: Maximum observed, 75*F July 26, 1952; minimum observed, freezing point on many d

Sediment concentrations: Maximum daily. 1,640 ppm Apr. 19, 1952; minimum daily, 9 ppm Sept. 25-31, 1

Sediment loads: Maximum daily, 32,900 tons July, 1952; minimum daily, 22 tons Feb. 11-29, 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

at Salt Lake City, Utah.Records of discharge for water year October 1951 to September 1952 given in 

Chemical analyses, In parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20 ...... 

Oct. 21-31 ......

Nov. 1-10.......

Nov. 11-20...... 

Nov. 21-30......

Dec. 1-10.......

Dec. 11-31......

Jan. 1-10, 1952 . 

Jan. 11-20 ......

Jan. 21-31 ......

Feb. 1-10.......

Feb. 11-20 ..... 

Feb. 21-29......

Mar. 1-10 ......

Mar. 11-20 ..... 

Mar. 21-31......

Mean 

discharge 

(cfs)

1,392 

1,250 

1,289 

992 

791 

752

805 

645 

663 

641 

666 

700

714 

738 

729 

730 

757 

1,020

Silica 

(S10S)

9.4 

9.9 

11 

11 

U 

12

U 

11 

11 

11 

11 

10

9.5 

9.7 

10 

U 

10 

9.9

Iron 

(Fe)

0.01 

.01 

.02 

.01 

.04 

.03

.02 

.03 

.02 

.03 

.02 

.03

.02 

.03 

.03 

.02 

.02 

.03

Calcium 

(Ca)

54 

59 

61 

63 

69 

80

69 

76 

71 

66 

70 

66

65 

68 

68 

68 

66 

65

Magnesium 

(Mg)

19 

22 

23 

23 

26 

30

25 

28 

23 

24 

24 

23

24 

25 

25 

25 

25 

25

Sodium 

(Na)

41 

42 

45 

44 

56 

72

43 

69 

62 

60 

53 

50

47 

50 

51 

51 

51 

53

Potassium 

(K)

3.4 

3.2 

3.0 

2.7 

3.0 

3.2

3.0 

3.0 

2.9 

3.2 

1.9 

1.9

1.3 

1.3 

1.4 

1.6 

1.6 

1.7

Bicarbonate 

(HCOS)

178 

191 

198 

210 

216 

242

208 

226 

213 

207 

208 

196

195 

201 

204 

206 

208 

204

Sulfate 

(S04 )

148 

156 

167 

163 

209 

253

186 

239 

205 

195 

193 

183

181 

190 

193 

196 

196 

196

Chloride 

(Cl)

7.2 

7.5 

7.2 

7.5 

8.8 

10

7.5 

9.5 

8.0 

7.8 

7.0 

6.8

6.5 

6.8 

6.5 

8.0 

7.5 

8.5

Fluoride 

(F)

0.2 

.2 

.2 

.2 

.2 

.3

.4 

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.2

Nitrate 

(NO,)

0.2 

.1 

.1 

.1 

.2 

.4

.1 

.2 

.3

.5 

. .8 

.6

.6 

.6 

.6

.7 

.7 

.5

Boron 

(B)

0.12 

.12

.16 

.12

.07 

.08

D

(re

Parts 

per 

million

3

39

4

4

48

5

46

56

50

47

48

45

44

47

47

47

47

46
GREEN RIVER BASIN Continued

GREEN RIVER NEAR GREEN RIVER, WYO. Continued

Chemical analyses, In parts per million, water year October 19S1 to September 195

Date of collection

Apr. 1-10, 1952 . . 

Apr. 11-20.......

May 1-10. ........

May 21-31, June 1-2 

June 3-10 ........

June 11-20 .......

July 1-10. ........

Aug. 11-20.......

Sept. 1-10 .......

Sept. 11-12, 18-20 

Sept. 21-30. ......

Weighted average

Mean 

discharge 

(cfs)

1,648 

3,217 

4,738 

7,024 

5,771 

4,544

8,212 

7,664 

4,752 

3,363 

2,973 

2,059

1,955 

1,678 

1,252 

1,058 

956 

805

a 2, 183

Silica 

(Si02)

8.3 

9.2 

11 

11 

7.9 

8.8

9.2 

9.3 

10 

9.9 

8.3 

6.3

6.7 

7.5 

7.1 

7.5 

7.1 

7.5

9.4

Iron 

(Fe)

0.03 

.03 

.06 

.06 

.03 

.03

.05 

.04 

.06 

.02 

.03 

.03

.03 

.05 

.03 

.03 

.03 

.03

0.04

Calcium 

(Ca)

59 

56 

50 

49 

40 

42

33 

30 

42 

39 

40 

41

40 

44 

47 

50 

52 

52

47

Magnesium 

(Mg)

23 

21

19 

15 

12 

14

9.6 

9.8 

15 

14 

14 

14

14 

15 

17 

19 

20 

22

16

Sodium 

(Na)

50 

60 

33 

18 

14 

17

11 

11 

23 

24 

21 

23

25 

30 

38 

41 

44 

49

29

Potas- 

 sium 

(K)

1.7 

3.2 

3.2 

2.0 

1.2 

2.0

1.1 

1.1 

1.6 

1.6 

1.3 

1.5

1.5 

1.8 

2.3 

2.3 

2.0 

2.0

1.9

Bicarbonate 

(HCO.)

183 

192 

197 

186 

150 

154

128 

122

178 

158 

159 

156

147 

152 

154 

162 

164 

168

168

Sulfate 

(SO,)

186 

178 

100 

59 

49 

65

38 

35 

62 

71 

66 

75

83 

99 

124 

141 

153 

173

97

Chloride 

(Cl)

8.0 

11 

7.0 

4. 5 

2.5 

4.0

2.0 

2.0

5.5 

5.0 

4.0 

4.5

4.5 

5.1 

6.5 

7.1 

6.2 

8.2

5.2

Fluoride 

(F)

0.1 

.4 

.3 

.3 

.3 

.3

.3 

.3 

.2 

.2 

.2 

.2

.2 

.3 

.3 

.2 

.3 

.3

0.3

Nitrate 

(NO,)

0.4 

1.4 

1.0 

.8 

.6 

.6

.6 

.5 

.7 

.4 

.7 

.6

.8 

.4 

.5 

.5 

.7 

.6

0.6

Boron 

(B)

0.12 

.06

.08 

.08

.07 

.10

-

Diss

(resid

Parts 

per 

million

434 

440 

326 

258 

205 

240

176 

163 

260 

245 

238 

246

251 

282 

319 

352 

371 

404

294

a Represents 99 percent of runoff for water year October 1951 to September 1952.
GREEN RIVER BASIN 53

GREEN RIVER BASIN Continued

GREEN RIVER NEAR GREEN RIVER, WYO. Continued

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

54

53

55

49

47

45

45

47

47

46

51

50

50

45

45

43

42

42

42

42

38

37

39

39

40

38

39

39

39

35

44

Nov.

33

33

35

35

34

35

36

34

34

35

33

33

33

34

34

33

34

33

33

34

34

33

34

33

33

33

33

34

33

33

--

34

Dec.

33

33

33

34

33

33

33

33

33

33

33

33

32

32

32

33

33

33

32

32

32

32

32

32

33

33

33

33

33

32

33

33

Jan.

32

32

32

31

31

31

32

32

32

32

32

33

33

33

34

34

35

32

33

32

33

33

33

00 

OO

33

33

33

32

32

33

33

Feb.

32

32

32

32

33

32

32

33

33

33

33

32

32

32

32

32

32

32

32

33

33

32

32

32

32

32

32

32

32

--

32

Mar.

32

32

32

32

32

32

32

33

33

33

33

33

33

33

33

33

33

34

34

33

33

33

33

33

34

34

34

34

34

34

34

33

Apr.

34

34

34

34

34

34

34

35

34

35

35

35

34

35

35

37

41

41

38

47

42

40

42

55

52

56

58

58

58

55

--

41

May

53

50

58

59

59

60

59

57

55

50

54

55

52

59

54

55

49

50

52

55

57

54

_

53

55

59

60

56

58

62

65

56

June

64

62

58

63

61

67

69

67

69

64

66

67

67

67

66

66

67

_

68

..

_

61

61

60

58

59

64

66

_

64

July

70

71

74

59

60

58

60

62

66

64

62

61

61

69

71

72

68

65

63

69

71

72

75

74

68

69

69

63

66

Aug.

68

68

70

70

68

66

70

63

65

71

60

63

64

66

65

65

68

70

61

62

69

70

66

66

65

65

66

68

66

57

57

66

Sept.

57

58

66

66

69

66

66

65

65

57

57

56

_

_

60

60

63

62

55

63

64

65

63

64

52

55

53

61
54 COLORADO RIVER BASIN

GREEK RIVER BASIN Continued 

GREEN RIVER NEAR GREEN RIVER WYO. Continued

Suspended sediment, water year October 1951 to September 1952

Day

......

11 ......

12 

13 ......

14 ......

15 

16 ......

18 ......

20 

28 

31 ......

Total1 ......

2 .-_--- 

3 ......

s 

 

B -----

9 

10 . . 

11 ..... 

12 

13 ..... 

M ..... 

15 

16 .... . 

17 ... 

18 ..... 

19 

20 

21 

22 

23 ..... 

24 

25 

26----- 

27 

28 

26 ----- 

30 

Jl .....

Total

October

Mean

discharge

(cfs)

1,270 

1,310 

1,320 

1,520 

1,620

1,660 

1,390 

1,310 

1,280 

1,240 

1,240 

1,240 

1,240 

1,270 

1,280

1,270 

1,250 

1,240 

1,240 

1,230

1,230 

1,280 

1,300 

1,300 

1,310

1,320 

1,340 

1,340 

1,300 

1,250 

1,210

40,600

680 

650 

640 

650 

650

630 

590 

600 

660 

660

640 

640 

660 

670 

660

700 

680 

670 

660 

660 

680 

700 

700 

700 

720

720 

710 

700 

690 

680 

700

20,770

Suspended sediment

Mean 

concentration 

(PPm)

10 

11 

40 

160 

270

650 

600 

90 

32 

30

22 

22

Tons 

per 

day

34 

39 

143 

657 

1,180

2,910 

2,250 

318 

111 

100

74 

77

9,329

January

17 

14

15

\ 25 

25

15

30 

24

26

44

45

28

1,023

November

Mean

charge

(cfs)

1,250 

1,030 

791 

791 

988

1,070 

960 

960 

1,060 

1,020

960 

1,040 

1,110 

1,140 

947

830 

570 

522 

415 

374

i4tO

770 

760 

750 

730

720 

720 

750 

770 

800

25,346

710 

700 

700 

700 

710

720 

720 

720 

740 

720

720 

720 

740 

720 

730

740 

760 

770 

750 

730 

710 

710 

710 

720 

720

730 

750 

750 

760

21,080

Suspended sediment

Mean 

concentration 

(ppm)

> 49

r 46

24 

39

Tons 

per 

day

128 

126

51 

79

2,570

February

23

J

11 

11

--

44

22 

22

856

December

Mean

charge

(cfs)

840 

870 

890 

900 

890

860 

800 

720 

660 

620

600 

600 

620 

630 

640

680 

680 

680 

680 

660

660 

680 

660 

640 

640

640 

640 

660 

680 

710 

700

21,790

Suspended sediment

Mean 

concentration 

(ppm)

160 

165 

135 

100

\ 23 

42

I "

29 

23 

56 

40 

70

55 

40 

24 

43 

40

48 

23

19 

} 3,

Tons 

per 

day

362 

388 

324 

243

54

91 

41

47 

37 

94 

68 

121

98 

73 

44

79 

71

86 

40

35 

59

2,890

March

750 

740 

730 

720 

720

730 

740 

730 

720 

720

720 

740 

760 

760 

750

760 

780 

780 

760 

760 

780 

800 

840 

860 

920

960 

1,020 

1,140 

1,220 

1,300 

1,380

26,090

30 

16 

12

59 

33 

33

1,883
GREEK RIVER BASIN 55

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR GREEN RIVER WYO. Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

2 ......

a ......

s ...

g _ . ...

11 ......

13 ......

17 .

18 .. 

91

9e

30 ----- -

31 ......

Total3 __--._

4 .....

8 -----

10 

11 -----

12 

to

14 

15 

18 

17 

19 .....

21 - -

22 ----- 

23 

24 ----- 

25 

20 

27 ----- 

28 ----- 

29 ~ 

30 

31 .....

Total

April

Mean

charge 

(cfs)

1,490" 

1,380 

1,290 

1,280 

1,310 

1,520 

1,950 

2,200 

2,180 

1,900

1,910 

2,100 

2,490 

2,810 

3,080

3,280 

3,580 

4,180 

4,260 

4,480 

4,700 

4,730 

4,310 

3,920 

4,020

4,280 

4,840 

5,200 

5,540 

8,040

96,030

4,45ff 

3,940 

3,630 

3,400 

3,180

3,080 

2,980 

2,980 

3,030 

2,960

2,830 

2,740 

2,830 

3,830 

3,380

3,260 

3,130 

2,860 

2,800 

2,47Q 

2,380 

2,270 

2,200 

2,120 

2,070

2,010 

1,910 

1,930 

1,950 

1,910 

1,900,

86,010

Suspended sediment

Mean 

concentration 

(PP«n)

38

87 

87 

282 

220 

269

221 

435 

730 

1,610 

750

890 

1,290 

1,440 

1,840 

1,330 

1,100 

1,130 

980 

450 

350

440 

500 

580 

800 

838

Tons 

per 

day

131

357 

353 

1,880 

1,280 

1,380

1,140 

2,470 

4,910 

s 13, 300 

8,240

7,880 

12,500 

18,300 

18,900 

18,100 

14,000 

14,400 

11,400 

4,760 

3,800

5,080 

8,260 

8,140 

8,970 

10,400

192,855

July

90

70

50 

35

1 '

3,600

1,600 

900

189 

61

1,290

a 830 

a 800

a 420 

282

300

32,900

14,100 

7,610

1,350 

339

70,437

May

Mean

charge 

(cfs)

8,280 

6,130 

6,190 

8,370 

7,020

7,830 

7,840 

7,680 

7,770 

7,350

6,840 

5,820 

5,400 

5,430 

5,880

8,220 

8,400 

5,990 

5,320 

4,810 

4,500 

4,640 

4,780 

4,560 

4,120

3,860 

3,890 

4,050 

4,100 

4,310 

4,840

175,600

Suspended sediment

Mean 

concentration 

(ppm)

1,270 

420 

345

478 

370 

238

243 

344 

 198

117 

88

} "

August

1,840 

1,840 

1,900 

1,950 

2,070

2,160 

2,070 

:,950 

1,860 

1,910

2,240 

2,140 

1,930 

1,770 

1,600

1,490 

1,460 

1,420 

1,380 

1,350 

1,320 

1,290 

1,280 

1,280 

1,250

1,220 

1,210 

1,210 

1,180 

1,250 

1,280

50,100

25

114 

30

520 

42

20 

18

) '

Tons 

per 

day

21,500 

6,950 

5,850

9,880 

7,590 

2,830

3,790 

5,940 

2,840

1,360

731 

877

139,645

132

865 

158

3,140 

203

76 

61 

276

7,947

June

Mean

charge

(cfs)

5,540 

5,880 

6,160 

8,840 

7,150

7,320 

8,050 

9,180 

10,200 

11,000

11,300 

10,800 

9,870 

8,540

8,800 

6,370 

5,820 

5,180 

4,560 

4,200 

4,050 

3,990 

3,990 

4,230

5,040 

5,600 

5,650 

5,820 

5,150

201,280

Suspended sediment

Mean 

concentration 

(PP«n)

78 

209

442 

198

135

70 

50 

40 

36 

150 

105

138 

600 

360 

205 

95

Tons 

per 

day

1,200 

3,990

12,100 

5,390

2,320

a 860 

a 570 

a 440 

388 

1,820 

1,200

1,880 

9,070 

5,490 

3,110 

1,320

117,758

September

1,280 

1,210 

1,140 

1,080 

1,010

99& 

970 

956 

984 

970

970 

970 

996 

1,030 

1,080 

1,080 

1,050 

998 

942 

900 

858 

830 

816 

816 

816

802 

788 

788 

774 

780

28,644

65 

30

18

\ 192

170

155

} 222 

} 157

80 

11

--

217 

86

47 

503

a 480

396

506 

S46

171 

23

8,142

Total discharge for year (cfs-days) .............................................................. 793,348

Total load for year (tons) ....................................................................... 554,597

s Computed by subdividing day.

a Computed from estimated concentration graph.
GREEN RIVER BASIN Continued 

GREEN RIVER NEAR GREEN RIVER, WYO. Continued

Particle-size of suspended sediment, water year October 1951 to September 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, siev

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Nov. 10, 15, 23, 

30, 1951........

Dec. 8, 18, 27, 

Jan. 4, 15, 1952 

Apr. 15 ..........

Apr. 21 ..........

Apr. 30 ..........

May 8 ...........

May 8 ...........

July 8 ...........

July 8 ...........

July 26 ..........

Aug. 2 ..........

Sept. 2 .........

Sept. 29 .........

Time

3:30 p. m. 

5:00 p. m. 

8:00 a. m. 

8:00 a. m. 

8:00 a. m. 

3:30 p.m.

10:00 a. m. 

3:00 p. m. 

9:20 a.m. 

4:30 p. m. 

6:45 a. m. 

7:00 p.m. 

5:30 a. m. 

6:30 p. m.

5:30 a. m. 

6:00 p. m. 

11:00 a. m. 

10:00 a.m.

5:15 p. m. 

10:30 a. m. 

10:30 a. m. 

6:00 p.m. 

9:15 a.m.

Water 

discharge 

(cfs)

3,080 

4,700 

6,040 

6,040 

7,740 

7,630

6,250 

6,340 

11,300 

11,200 

5,990 

5,650 

5,400 

4,980

2,980 

3,000 

2,010 

1,840

2,200 

1,360 

1,180 

984 

760

Water 

temperature 

CF)

Suspended sediment

Concentration 

of sample 

(ppm)

20

18 

459 

942 

927 

927 

481 

418

215 

174 

427 

375 

104 

157 

90 

80

30 

52 

39 

20

226 

14 

49 

40 

8

Concentration 

of suspension 

analyzed 

(ppm)

190 

1,750 

4,430 

3,720 

2,040

1,090 

857

1,820

Percent finer than 

0.002

15 

44

34

18 

6

0.004

19 

51 

50 

44 

39

21 

12

52

0.008

21

58

46

25 

18

0.016

27 

66 

69 

60 

53

33 

25

65

0.031

37 

74

57

43 

37
GREEN RIVER BASIN 

BLACKS FORK NEAR GREEN RIVER, WYO.

LOCATION. At county highway bridge about 75 yards downstream from gaging station, which is 200 feet downs

from mouth, and 12.5 miles southwest of town of Green River, Sweetwater County. 

DRAINAGE AREA. 3,670 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,650 ppm Sept, 22-27, 29-30; minimum, 298 ppm June 2-7, 

Hardness: Maximum, 660 ppm Sept. 22-27, 29-30; minimum, 96 ppm Mar. 27-29, 31, Apr. 1-5, 7-8.

Specific conductance: Maximum daily, 2,390 micromhos Oct. 1; minimum daily, 414 micromhos Apr. 4.

Water temperatures: Maximum observed, 79* F July 31; minimum observed, freezing point on many days from 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 1,730 ppm Sept. 21-22, 24-30, 1951; mini

Hardness: Maximum, 730 ppm Sept. 21-22, 24-30, 1951; minimum, 96 ppm Mar. 27-29, 31, Apr. 1-5, 7-8, 195

Specific conductance: Maximum daily, 2,390 micromhos Oct. 1, 1951; minimum daily, 414 micromhos Apr. 4, 

Water temperatures: Maximum observed, 79°F July 31, 1952; minimum observed, freezing point on many days 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductan

fice at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given 

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-5, 1951.. 

Oct. 6 a .......

Oct. 8-10 ......

Oct. 11-13, 15-20

Oct. 22-27, 29-31

Nov. 1-3, 5-10...

Nov. 13-17, 19-20

Nov. 21,23-24,26-30

Dec. 1, 3-8, 10..

Dec. 11-15, 17-20

Dec. 21-22,24, 26-29,

31.............

Jan. 2-5,7-10,1952

Jan. 11-12, 14-19

Jan. 21-26, 28-31

Feb. 1-2, 4-9....

Feb. 11-16, 18-20

Feb. 21,23, 25-29 .

Mar. 1, 3-8, 10..

Mar. 11-15, 17-22 

Mar. 2B-5R a . . .

Mean 

discharge 

(cfs)

74.0 

456

377

142

100

92.4

85.1

112

92. 5

82! 0

70.0

55.2

60.9

71.2

78.2

76.4

75.4

90.5

91.5 

1SR

Silica 

(SiO,)

14

14

20

12

12

12

13

12

12

1 9l£

13

13

14

14

12

13

13

12

Iron 

(Fe)

0.07

.13

.10

.06

.04

.04

.04

.02

.03

.03

.03

.04

.04

.05

.03

.03

.04

.05

Calcium 

(Ca)

134

34

92

115

125

138

152

128

136

141

138

142

152

130

123

127

118

110

Magnesium 

(Mg)

67

9.2

33

49

54

61

63

50

54

52

54

56

50

47

48

45

42

Sodium 

(Na)

266

160

182

177

180

186

188

137

144

152

151

155

161 '

141

124

_-

136

101

Potassium 

(K)

7.6

5.6

7.2

6.4

11

13

11

3. 6

4.4

4.0

3.6

7.6

3.5

3.0

3.5

4.0

3.7

3 8

Bicarbonate 

(HCOS)

195 

172

223

234

249

247

274

307

296

330

oqn OJU

320

324

320

296

304

312

294

280

20fi

Sulfate 

(S04 )

858

216

459

546

574

612

624

437

475

AQQ tyo

487

522

550

467

409

418

335 

272

Chloride 

(Cl)

98

44

85

88

94

99

101

68

76

76

74

75

76

70

74

82

70

62

93

Fluoride 

(F)

0.5

.7

.6

.5

.4

.4

.4

.3

.3

.4

.3

.3

.3

.4

.4

.4

.4

Nitrate 

(NO,)

0.6

2.2

1.3

.3

.3

.2

.5

.7

.8

.7

.8

.9

1.3

1.1

1.2

1.3

1.4

.9 

S.fi

Boron 

(B)

-

0.37

_

.34

-

_

.35

__

..

.25

..

.17

.17

Disso

(resid

Parts 

per 

million

1,600

595

,040

,150

,220

,310

,370

1,010

1,100

1,140

1,120

1,180

1,230

1,060

983

1,020

961

846

T

a

a Not included for computation of weighted averages.
GREEN RIVER BASIN Continued

BLACKS FORK NEAR GREEN RIVER, WYO. Continued

Chemical analyses, in parts per million, water year October 1951 to September 19

Date of collection

Mar. 27-29, 31,

Apr. 1-5,7-8,1952

Apr. 9-12, 14-19

Apr. 21-26, 28-30

May 1-3, 5-10... .

May 12-17,19-20 .

May 21-24, 26-29,31

June 2-7, 9-10...

June 11-14, 16-18

June 21,23-28, 30

July 1-3, 5, 7-10

July 11-12, 14-19

July 21-26, 28-31

Aug. 1-2, 4-9....

Aug. 11-16,18-20

Aug. 21-23, 25-30

Sept. 2-6, 8-10...

Sept. 11-13, 15-20

Sept. 22-27, 29-30

Weighted average

Mean 

discharge 

(cfs)

385

1,685

2,784

4,267

2,936

2,171

2,666

1,608 

687

834

463

275

148

173

239

98.2

56.2

38.6

34.8

c643

Silica 

(SiO.)

14

16

15

14

13

12

12

12

16

17

20

15

15

25

14

9.9

8.8

5.6

14

Iron 

(Fe)

0.02

.03

.03

.03

.04

.03

.03

.03

.05

.05

.05

.06

.05

.06

.10

.07

.06

.07

0.04

Calcium 

(Ca)

33

59

68

51

57

56

49

54

80

95

102

110

94

96

95

130

138

139

64

Magnesium 

(Mg)

3.2

6.9

9.1

17

17

19

15

17

27

37

38

51

38

35

37

65

72

76

19

Sodium 

(Na)

69

118

73

42

50

43

29

34

95

130

188

198

190

178

166

258

267

71

Potassium 

(K)

2.0

3.6

4.5

3.8

3.2

2.9

2.4

2.4

4.6

5.3

6.0

6.8

6.0

5.2

4.2

4.7

5.3

5.5

3.7

Bicarbonate 

(HCO,)

167

216

199

202

214

216

186

186

261

288

288

266

236

256

226

236

224

222

214

Sulfate 

(S04 )

79

158

142

89

101

93

68

93

220

337

463

540

467

433

461

821

864

155

Chloride 

(Cl)

20

64

42

22

28

24

16

18

49

61

78

87

84

75

67

105

119

123

37

Fluoride 

(F)

0.4

.4

.4

.4

.4

.4

.5

.4

.5

.6

.5

.5

.7

.6

.5

.6

.5

.5

0.4

Nitrate 

(NO,)

1.1

.9

1.4

1.4

1.0

1.0

1.1

1.1

.8

.6

.8

.7

.9

1.6

.6

.4

.4

.3

1.1

Boron 

(B)

0.17

.11

_.

.10

..

.17

_

.30

.37

Dissolv

(residue 

Parts 

per 

million

306

557

464

353

390

371

298

340

b622

b825

b 1,040

b 1,140

b 1,010

988

971

1,390

1,590

1,650

487

To

p

ac

fo

0

2

2

0

a Not included for computation of weighted averages.

b Sum of determined constituents.

c Represents 83 percent of runoff for the water year October 1951 to September 1952.
GREEN RIVER BASIN 59

GREEN RIVER BASIN Continued 

BLACKS FORK NEAR GREEN RIVER, WYO. Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement, usually at 930 a. m. or 1230 p. raj

Day

1

2

3

4

5

6

7

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

Oct.

56

58

47

47

47

49

44

47

47

50

47

47

43

42

41

40

45

45

__

35

35

36

40

40

45

44

39

35

44

Nov.

32

33

32

35

34

35

36

34

34

_

33

42

33

32

33

34

33

33

32

32

~

33

33

32

32

32

~

--

Dec.

33

33

34

32

32

32

32

32

33

33

32

32

32

_

32

32

32

32

32

32

32

32

32

32

32

32

32

Jan.

._

32

32

32

32

_

32

32

32

32

32

32

32

32

32

32

32

32

~

32

32

32

33

32

33

33

33

32

33

32

Feb.

33

32

32

32

33

33

32

32

~

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

~

32

Mar.

32

33

33

32

32

32

32

_

32

32

32

32

32

32

_

32

33

33

33

33

33

33

33

33

33

33

39

33

Apr.

33

33

33

33

39

_

39

33

33

33

33

36

_.

36

39

40

46

47

48

45

43

47

50

52

55

55

52

53

42

May

53

55

50

49

58

56

55

54

50

_

56

59

55

52

56

52

52

54

51

49

53

54

56

55

60

60

58

54

June

60

60

59

63

62

66

66

62

65

60

62

62

59

63

63

64

66

61

_

65

60

60

61

60

61

_

62

62

July

65

68

70

71

64

62

72

70

67

64

65

64

64

59

59

70

67

70

65

67

75

77

76

76

71

79

68

Aug.

68

66

64

65

65

65

65

65

~

67

64

66

66

62

62

64

65

70

65

65

56

60

64

64

62

60

66

65

Sept.

_

57

59

64

64

64

..

62

56

59

58

55

55

54

54

57

56

57

56

_

56

55

56

54

56

55

_

54

54

57
GREEN RIVER BASIN Continued 

HENRYS FORK AT LINWOOD, UTAH

LOCATION. About 75 yards upstream from gaging station, which is in Sweetwater County, Wyoming, 300 feet n

Daggett County, Utah. 

DRAINAGE AREA. 531 square miles. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,170 ppm Nov. 11-20jminimum, 312 ppm June 1-6, 9-10.

Hardness: Maximum, 730 ppm Nov. 11-20; minimum, 208 ppm June 1-6, 9-10.

Specific conductance: Maximum daily, 1,850 micromhos July 28; minimum daily, 395 micromhos May 15, June 

Water temperatures: Maximum observed, 65°F July 26-27; minimum observed, freezing point on many days du

EXTREMES, March 1951 to September 1952. Dissolved solids: Maximum, 1,330 ppm Sept. 21-30, 1951; minimum, 

Hardness: Maximum, 806 ppm Sept. 21-30, 1951; minimum, 208 ppm June 1-6, 9-10, 1952.

Specific conductance: Maximum daily, 1,850 micromhos July 28, 1952; minimum daily, 395 micromhos May 15

Water temperatures: Maximum observed, 65°F July 28, 1951, July 26-27, 1952.

REMARKS.--Values reported for dissolved solids are residues on evaporation. Records of specific conductan

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WSP 12

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951..

Nov. 11-20 ......

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1952..

Jan. 21-31 ......

Feb. 11-2CI......

Mar. 1-10 ......

Mar. 28-31......

Mean 

discharge 

(cfs)

49.1 

44.9 

67.0 

45.3 

45.2 

56.5

58.0 

52.3 

43.0 

27.1 

38.8 

45.1

51.0 

49.1 

49.4 

51.3 

61.1 

80.4 

114

Silica 

(SiO,)

27 

24 

22 

22 

24 

22

22 

22 

17 

20 

19 

19

18 

18 

18 

18 

18 

18 

19

Iron 

(Fe)

0.05 

.04 

.04 

.03 

.05 

.04

.03 

.04 

.05 

.07 

.05 

.09

.04 

.05 

.04 

.04 

.04 

.04 

.06

Calcium 

(Ca)

144 

127 

132 

142 

156 

135

144 

145 

150 

153 

150 

138

137 

145 

144 

138 

137 

133 

97

Magnesium 

(Mg)

80 

67 

71 

78 

83 

78

77 

78 

79 

76 

77 

74

72 

76 

75 

71 

72 

69 

34

Sodium 

(Na)

90 

66 

70 

77 

85 

77

83 

84 

75 

74 

74 

69

72 

66 

72 

53 

70 

67 

72

Potassium 

(K)

11 

9.0 

8.7 

9.6 

9.5 

4.0

6.0 

4.0 

8.5 

8.2 

8.6 

7.1

7.2 

7.4 

7.4 

6.9 

8.0 

7.0 

9.6

Bicarbonate 

(HCO,)

272 

276 

284 

294 

308 

a 287

291 

296 

290 

292 

 286 

268

278 

272 

274 

286 

268 

260 

170

Sulfate 

(SO.)

574 

450 

469 

523 

579 

502

529 

542 

533 

527 

534 

514

498 

520 

526 

461 

506 

478 

357

Chloride 

(Cl)

44 

34 

36 

39 

41 

37

39 

40 

40 

40 

40 

38

36 

38 

38 

38 

34 

36 

24

Fluoride 

(F)

0.4 

.5 

.5 

.4 

.4 

.2

.4 

.3 

.2 

.2 

.4 

.5

.4 

.3 

.3 

.4 

.4 

.4 

.4

Nitrate 

(NO,)

0.7 

.2 

.4 

.1 

.2 

.6

.5 

.6 

.6 

.4 

.4 

.6

1.0 

1.1 

1.1 

1.2 

1.0 

1.0 

1.3

Boron 

(B)

0.21 

.23

.47 

.27

.21 

.20

Dissolv

(residue 

Parts 

per 

million

1,140 

938 

981 

1,070 

1,170 

1,040

1,090 

1,110 

1,100 

1,100 

1,100 

1,050

1,020 

1,060 

1,060 

989 

1,010 

982 

705

To

p

ac

fo

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

a Includes equivalent of 12 parts per million of carbonate (CO,).
Apr. 1-5, 1952...

Apr. 11, 14, 17 b

June 1-6, 9-10...

July 21-27, 29-31

Aug. 11-20 ......

Sept. 21-30......

Weighted average

141 

265 

172 

203 

216 

416 

452 

312

838 

1,190 

432 

372 

195 

184 

117 

300

130 

157 

133 

61.9 

65.7 

54.7

C149

25

18 

18 

15 

16 

15

18 

20 

16 

19 

19 

26 

25

24 

22 

22 

15 

14 

14

19

.08

.05 

.03 

.02 

.03 

.03

.04

.04 

.03 

.03 

.05 

.06

.06 

.06 

.06 

.09 

.09 

,09

0.04

104

89 

74 

64 

59 

57

57 

63 

62 

74 

85 

113 

118 

309

106 

105 

103 

116 

111 

120

87

46

39 

36 

22 

23 

28

16 

26 

21 

32 

36 

43 

52 

36

48 

45 

45 

63 

60 

62

38

70

33 

27 

11 

23 

19

17 

4 

19 

30 

35 

50 

55

47 

47 

47 

63 

60 

63

38

12

7.4 

5.9 

4.3 

5.2 

5.2

5.2 

2 

4.3 

5.9 

6.0 

9.2 

8.7

7.7 

8.4 

7.9 

8.4 

7.8 

8.1

6.4

224 

180 

244 

232 

210 

182 

170 

180

166 

178 

170 

210 

230 

256 

274 

332

258 

236 

230 

230 

230 

240

213

360 

358 

284 

228 

188 

106 

131 

129

95 

178 

124 

184 

208 

312 

353 

821

311 

323 

317 

433 

410 

432

246

27 

15 

26 

19 

18 

10 

11 

11

8.0 

16 

10 

16 

18 

22 

24

20 

20 

20 

32 

28 

31

19

.3

.4 

.4 

.4 

.4 

.4

.5

.5 

.5 

.5 

.5 

.5

.3 

.3

.4 

.4 

.4 

.5

0.4

2.0

.9 

.9 

.8 

.9 

.6

.8 

1.1 

.4 

.6 

.4 

.4 

1.1

1.1 

1.0 

1.0 

.9 

.2 

.2

0.7

--

.08 

.08

.10 

.17

.22 

.28

..

770

550 

480 

323 

354 

389

312 

456 

356 

482 

546 

723 

800

711 

706 

699 

872 

836 

879

578

b Not included for computation of weighted averages, 

c Represents 96 percent of runoff for water year October 1951 to September 1952.
COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

HENRYS FORK AT LINWOOD, UTAH--Continued 

Temperature (*F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

49

52

SO

45

45

43

43

43

43

44

48

47

42

41

42

43

38

38

41

41

41

36

34

38

40

42

36

36

36

36

36

42

Nov.

34

33

33

40

35

33

33

34

35

41

40

33

36

36

34

33

34

34

32

35

34

33

34

34

32

32

32

32

33

33

34

Dec.

32

32

32

32

33

32

32

32

33

32

_

32

32

32

33

33

32

33

32

32

33

33

34

33

32

32

33

32

33

33

33

32

Jan.

35

35

36

34

33

33

33

33

35

33

33

34

34

33

34

33

34

35

32

32

33

34

35

33

33

34

34

34

33

35

35

34

Feb.

33

33

34

34

34

35

33

34

33

34

34

33

34

31

33

33

35

34

32

33

32

32

33

33

34

33

33

35

33

_

_

33

Mar.

33

33

34

34

33

33

33

33

34

33

34

33

33

33

33

34

34

34

32

33

33

34

33

34

33

34

33

34

33

33

34

33

Apr.

34

34

34

34

34

_

_

_

_

_

_

43

43

44

45

42

43

45

46

49

48

51

50

47

~

May

46

49

52

50

51

50

51

48

45

45

50

49

51

50

51

40

39

44

48

50

49

46

45

50

53

52

50

53

56

50

51

49

June

56

55

57

53

59

58

58

58

59

60

58

1 59

58

58

58

53

54

57

57

59

56

57

58

57

52

S3

52

53

56

58

57

July

60

60

59

62

62

59

57

57

59

62

59

55

57

52

56

58

59

59

61

59

58

61

62

64

64

65

65

59

62

64

62

60

Aug.

62

60

59

61

59

62

60

61

62

60

55

56

58

60

57

58

59

59

61

58

60

58

57

56

56

60

59

57

56

55

52

58

Sept.

52

52

53

58

58

58

57

57

54

57

57

55

52

49

49

53

52

52

52

53

54

51

51

51

51

51

51

51

51

49

..

53
GREEN RIVER BASIN Continued 

YAMPA RIVER NEAR MAYBELL, COLO.

LOCATION. At county bridge 1 mile north of Maybell, Moffat County, and about 3f miles downstream from g

DRAINAGE AREA. 3,410 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: November 1950 to September 1952.

Water temperatures: November 1950 to September 1952.

Sediment records: December 1950 to September 1952. 

EXTREMES, 1951-52.--Dissolved solids: Maximum, 339 ppm Apr. 1-10; minimum, 83 ppm June 11-20.

Hardness: Maximum, 184 ppm Apr. 1-10; minimum, 50 ppm June 11-20.

Specific conductance: Maximum daily, 612 micromhos Apr. 8; minimum daily, 105 micromhos June 17.

Water temperatures: Maximum observed, 75°F July 23-26; minimum observed, freezing point Nov. 2, 13.

Sediment concentrations: Maximum daily, 3,200 ppm Apr. 8; minimum daily, 4 ppm on many days.

Sediment loads: Maximum daily, 20,800 tons Apr. 11; minimum daily, 3 tons on many days. 

EXTREMES, 1950-52. Dissolved solids: Maximum, 339 ppm Apr. 1-10, 1952; minimum, 72 ppm June 21-30, 1951

Hardness: Maximum, 184 ppm Mar. 1-10, 1951; Apr. 1-10, 1952; minimum, 45 ppm June 21-30, July 1-10, 1

Specific conductance: Maximum daily, 612 micromhos Apr. 8, 1952; minimum daily, 97.5 micromhos June 21

Water temperatures: Maximum observed, 81°F July 30, 1951; minimum observed, freezing point on several 

Sediment concentrations: Maximum daily, 6,000 ppm July 22, 1951; minimum daily, 2 ppm Jan. 21 to Feb. 

Sediment loads: Maximum daily, 20,800 tons Apr. 11, 1952; minimum daily, 1 ton Jan. 21 to Feb. 4, 1951

REMARKS. Prior to Jan. 30, 1951, samples were collected at bridge on U.S. Highway 40, 100 feet upstream 

solids are residues on evaporation. Records of specific conductance of daily samples available in dis

charge for water year October 1951 to September 1952 given in WSP 1243. No appreciable inflow betwee

Chemical analyses, In parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951.....

Oct. 21-31 .........

Nov. 11-20 .........

Nov. 21, 23, 26-29. .

Dec. 11-20.........

Jan. 1-10, 1952. ....

Jan. 21-31 .........

Feb. 11-20.........

Feb. 21-29.........

Mar. 1-10..........

Mar. 21-31.........

Mean 

discharge 

(cfs)

286 

339 

374 

283 

252 

258

217 

192 

199 

189 

236 

255

260 

252 

243 

249 

262 

398

Silica 

(3i08)

9.4 

9.7 

12 

12 

14 

15

15 

16 

15 

15 

16 

16

15 

16 

15 

16 

15 

14

Iron 

(Fe)

0.04 

.03 

.05 

.08 

.06 

.05

.02 

.03 

.04 

.03 

.03 

.03

.03 

.03 

.03 

.04 

.06 

.03

Calcium 

(Ca)

33 

30 

32 

36 

37 

37

41 

41 

36 

38 

37 

38

38 

40 

39 

39 

38 

39

Magnesium 

(Mg)

13 

12 

13 

15 

15 

16

16 

17 

14 

16 

15 

15

15 

16 

16 

16 

17 

17

Sodium 

(Na)

37 

26 

27 

31 

35 

36

41 

39 

35 

39 

34 

37

36 

36 

36 

38 

37 

39

Potassium 

(K)

4.0 

4.5 

3.5 

3. 8 

3.7 

3.7

3.7 

3.5 

3.2 

2.5 

2.1 

2.4

2.6 

2.3 

2.4 

2.5 

2.7 

2.2

Bicarbonate 

(HCO,)

154 

142 

144 

160 

168 

172

187 

193 

170 

180 

174 

178

172 

177 

176 

179 

174 

180

Carbonate 

(CO,)

Sulfate 

(SO,)

58 

44 

49 

58 

62 

65

69 

66 

57 

65 

58 

63

62 

63 

64 

65 

66 

71

Chtoride 

(CD

22 

17 

16 

20 

22 

20

27 

24 

21 

24 

19 

21

20 

20 

21 

22 

22 

24

Fluoride 

(F)

0.4 

.3 

.3 

.3 

.3 

.3

.3 

.8 

.3 

.3 

.3 

.3

.4 

.3 

.3 

.3 

.4 

.3

Nitrate 

(NO,)

0.4 

.5 

.4 

.4 

.0 

.7

.1 

.1 

.5 

1.3 

1.2 

1.1

1.4 

1.0 

1.0 

1.1 

.9 

.8

Boron 

(B)

0.08

.07 

.17

.18 

.06

.06 

.06
GREEN RIVER BASIN--Continued

YAMPA RIVER NEAR MAYBELL, COLO. Continued 

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

Apr. 1-10, 1952 ....

May 1-10. ..........

May 11-20. .........

May 21-31. .........

June 1-10. ..........

July 1-10. ..........

July 11-20. .........

Aug. 11-20.........

Sept. 1-10. .........

Sept. 11-20. ........

Sept. 21-30.........

Weighted average . .

Mean 

discharge 

(cfs)

857 

3,629 

7,612 

10,460 

8,597 

6,336

11,110 

8,783 

4,022 

1,974 

1,040 

602

635 

589 

414 

319 

225 

183

a 2, 013

Silica 

(SiO.)

13 

14 

12 

11 

11 

13

11 

8.5 

8.9 

9.2 

11 

12

11 

9.9 

7.0 

5.6 

3.6 

4.0

11

Iron 

(Fe)

0.03 

.03 

.16 

.22 

.17 

.14

.26 

.19 

.07 

.03 

.04 

.14

.08 

.14 

.06 

.05 

.07 

.06

0.16

Calcium 

(Ca)

44 

43 

24 

23 

20 

21

17 

13 

15 

20 

24 

31

33 

32 

35 

36 

36 

38

23

Magnesium 

(Mg)

18 

15 

11 

8.0 

7.3 

7.2

5.5 

4.1 

4.9 

6.7 

9.9 

12

12 

13 

15 

15 

16 

17

8.2

Sodinm 

(Na)

40 

25 

12 

7.0 

6.2 

8.7

5.3 

4.5 

7.2 

12 

17 

25

21 

21 

28 

32 

41 

45

11

Potassium 

(K)

3.3 

3.6 

3.2 

2.4 

1.5 

.9

1.3 

1.0 

1.0 

1.1 

1.9 

2.5

2.5 

2.5 

2.6 

2.5 

2.8 

2.8

1.9

Bicarbonate 

(HCO,)

170 

144 

114 

100 

86 

88

71 

60 

64 

82 

104 

136

142 

144 

156 

158 

170 

171

97

Carbonate 

(CO,)

Sulfate 

(S04)

110 

94 

44 

29 

21 

22

13 

9.5 

15 

26 

33 

44

41 

43 

58 

60 

66 

78

31

Chlorids 

(Cl)

17 

7.1 

3.5 

2.5 

2.8 

2.4

1.2 

1.4 

3.5 

6.7 

11 

17

12 

12 

16 

21 

28 

32

4.8

Fluoride 

(F)

0.2 

.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.5 

.5 

.4

.4 

.4 

.5 

.5 

.5 

.5

0.4

Nitrate 

<NOS )

1.1 

3.3 

2.7 

.9 

.7 

.7

.7 

.7 

.7 

.6 

.8 

.7

.8 

.7 

.9 

.8 

.6 

.9

1.1

Boron 

(B)

0.03 

.04

.04 

.05

.09

..

P

a Represents 99.9 percent of runoff for water year October 1951 to September 1952.
GREEN RIVER BASIN 65

GREEN RIVER BASIN Continued 

YAMPA RIVER NEAR MAYBELL, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

61

60

55

56

52

55

57

56

58

61

52

56

55

52

48

51

52

50

46

45

45

48

45

50

46

46

-,

45

50

45

52

Nov.

33

31

40

42

42

43

43

45

42

45

45

35

31

34

34

34

36

33

35

36

33

33

34

34

35

--

37

Dec.

..

34

34

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

Jan.

33

34

34

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

34

33

33

33

33

Feb.

34

33

33

33

33

33

33

33

33

33

33

34

34

34

34

34

33

33

33

33

33

33

33

33

33

33

33

33

33

33

Mar.

33

34

33

33

33

33

_

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

35

35

35

33

Apr.

35

35

35

37

37

37

37

40

40

40

40

40

_

35

35

35

45

45

48

52

47

56

47

57

50

50

52

50

48

48

--

43

May

56

52

52

57

56

53

54

58

98

58

52

59

59

58

54

55

52

52

53

52

52

55

54

56

56

56

55

_

58

_

58

55

June

58

58

58

58

58

62

62

62

62

62

62

62

62

62

63

62

62

64

63

63

64

63

63

62

62

63

63

63

65

65

62

July

65

68

69

70

68

70

70

70

72

72

70

70

70

70

72

72

74

74

74

74

74

74

75

75

75

75

74

74

72

_

74

72

Aug.

74

74

74

74

74

74

74

74

73

68

70

70

68

70

70

72

72

74

72

70

..

70

70

_

70

68

68

67

68

68

68

71

Sept.

67

66

68

70

72

70

74

68

68

68

..

68

66

66

68

67

68

68

68

65

65

65

65

65

65

65

65

65

65

-.-

67
66 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

YAMPA RIVER NEAR MAYBELL, COLO. Continued 

Suspended sediment, water year October 1951 to September 1952

Day

3 

19

13 .

15 ......

16 

1ft

19 -

20 

22 -

94

AC

40

30 

31 ......

Total10 ------ 

11 ...

16 

17 

40

20 ------ 

21 ...... 

22 

23 ------ 

24 ----- 

25 

26 ----- - 

27 ----- - 

28 ----- 

29 ----- - 

30 ----- 

31 

TotalOctober

Mean

discharge

(cfs)

172 

190 

208 

240 

315 

370 

351 

342 

338 

333

338 

333 

328 

342 

346 

333 

342 

346 

342 

338

338 

342 

356 

356 

338

365 

405 

405 

443 

405 

365

10, 365

Suspended sediment

Mean 

concentration 

(ppm)

\ " 

390 

250 

160

30 

32

16 

43

Tons 

per 

day

7

219 

162 

136

28 

29

15 

46

1,283

January

180 

170 

165 

180 

195

195 

190 

200 

205 

210 

210 

220 

230 

235 

230

230 

240 

250 

255 

260

260 

260 

260 

260 

260

260 

255 

250 

245 

245 

250

7,055

6 

6

1-

5

3

4

3 

3

101

November

Mean

charge

(cfs)

356 

320 

283 

236 

230

311 

299 

272 

258 

261

272 

275 

275 

283 

283

268 

196 

216 

220 

230

275 

280 

280 

280 

270

260 

250 

240 

240 

245

7,964

Suspended sediment

Mean 

concentration 

(ppm)

42 

17

26 

31

Tons 

per 

day

33 

12

18 

21

624

February

255 

260 

260 

265 

265

260 

260 

260 

260 

260 

255 

250 

250 

250, 

250

250 

255 

260 

250 

245

245 

240 

235 

230 

230

240 

250 

260 

260

7,310

12 

7 

4

9

8 

5 

3

6

160

December

Mean

charge

(cfs)

250 

240 

235 

230 

235

225 

210 

195 

180 

170

180 

190 

195 

195 

190

190 

190 

195 

195 

195

195 

200 

205 

200 

200

190 

190 

200 

205 m

6,295

Suspended sediment

Mean 

concentration 

(ppm)

15

7

9

7

Tons 

per 

day

9

4

5 

4

170

March

260 

260 

250 

240 

240

245 

250 

250 

250 

245 

250 

250 

245 

245 

245

250 

265 

280 

290 

300

300 

290 

290 

320 

350

400 

440 

470 

480 

510 

530

9,490

5 

5

6

7

3 

3

5 

9

151
GREEN RIVER BASIN 67

GREEN RIVER BASIN Continued 

TAMPA RIVER NEAR MAYBELL, COLO. Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

Day

1 ......

3 ... ...

3 ......

5 

8 ......

12 ......

16 

17 .

18 ...... 

19 ......

21 ......

AA

9R

31 .... 

Total11 

13 -----

18 ----- 

19 .. 

20 

21 .....

22 

as -----

24 

25 

26 ----- 

27 

28 

2» ..... 

30 

31 .....

Total

April

Mean

discharge

(cfs)

601 

640 

670 

700 

750

800 

850 

950 

1,200 

1,410

2,290 

2,570 

2,840 

3,020 

3,840

4,180 

3,360 

3,480 

4,890 

5,820

6,630 

7,780 

6,630 

5,840 

6,480

7,310 

8,000 

8,500 

9,490 

9,460

120,980

Suspended sediment

Mean 

concentration 

(ppm)

12

161 

820

1,220 

1,290 

3,200 

2,120 

1,690

2,920 

1,710 

1,350 

1,200 

1,400

1,290 

900 

580 

1,200 

1,250

1,000 

850 

800 

370 

400

420 

470 

410 

346 

310

..

July

2,690 

2,510 

2,260 

2,010 

1,840

1,760 

1,830 

1,840 

1,640 

1,360 

1,220 

1,570. 

1,410 

1,190 

1,040 

942 

854 

788 

716 

671

621 

585 

549 

507 

483 

477 

573 

603 

658 

730 

834

36,761

40

390 

200

23 

15

8

340 

130 

750 

2,000 

350

Tons 

per 

day

21

304 

1,660

2,640 

2,960 

8,210 

6,870 

6,430 

s 20, 800 

11,900 

10,400 

9,780 

14,500

14,600 

8,160 

5,450 

15,800 

19,600 

17,900 

17,900 

10,700 

5,830 

7,000

8,300 

10,200 

9,410 

8,870 

7,920

264, 157

244

1,850 

990

95

40 

e20 

12

526 

212 

sa2, 100 

3,940 

788

12,473

May

Mean

discharge

(cfs)

8,380 

8,790 

9,060 

9,920 

10,700

11,500 

12,100 

12, 100 

11,200 

10,700

9,080 

7,780 

8,020 

8,910 

9,750

10,100 

10,200 

8,670 

7,050 

6,410

6,700 

7,570 

6,540 

5,500 

5,080

5,080 

5,700 

6,060 

6,430 

7,160 

7,880

260, 220

Suspended sediment

Mean 

concentration 

(ppm)

261 

260 

273 

260 

315

390 

270 

250 

300 

241

213 

200 

216 

226 

254

208 

153 

198 

184 

143 

194 

287 

160 

134 

151

154 

141 

177 

155 

177 

201

_

August

762 

697 

710 

645 

627

573 

543 

531 

555 

710 

645 

768 

801 

645 

555

549 

555 

483 

443 

443

405 

421 

438 

405 

375 

405 

443 

385 

432 

432 

410

16,791

66

45

I »

\

30 

200

} 

Tons 

per 

day

5,910 

6,170 

6,680 

6,960 

9,100

12,100 

8,820 

8,170 

9,150 

6,960

5,220 

4,200 

4,680 

5,440 

6,690

5,670 

4,210 

4,630 

3,500 

2,470

3,510 

5,870 

2,830 

1,990 

2,070

2,110 

2,170 

2,900 

2,690 

3,420 

4,280

180,570

116

elOO 

87

60

35

207 

76

2,412

June

Mean

charge

(cfs)

8,580 

8,720 

9,060 

9,610 

11,100

13,200 

13,200 

12,800 

12,700 

12,100 

11,400 

11,200 

10,700 

9,970 

9,250

8,910 

8,480 

6,540 

5,760 

5,620

5,620 

4,940 

4,440 

4,130 

4,020

4,270 

3,630 

3,370 

3,000 

2,800

239. 120

Suspended sediment

Mean 

concentration 

(ppm)

216 

156 

168 

180 

300

300 

200 

166 

151 

165 

164 

156 

158 

148 

162

138 

130 

128 

96 

94

97 

93 

83 

75 

68

66 

98 

62 

53 

54

Tons 

per 

day

5,000 

3,670 

4,110 

4,670 

8,990

10,700 

7,130 

5,740 

5,180 

5,390

5,050 

4,720 

4,560 

3,980 

4,050

3,320 

2,980 

2,280 

1,490 

1,430

1,470 

1,240 

995 

836 

738

991 

960 

564 

429 

408

103. OS1

September

471 

410 

356 

328 

303

287 

272 

261 

258 

247

240 

233 

222 

219 

222 

244 

233 

216 

208 

216

205 

196 

193 

187 

181

181 

178 

172 

170 

168

7,377

38 

37 

18

36 

24

11 

elO

588

Total discharge for year (cfs-days) 

Total load for year (tons) .........

. 729, 608

. 545, 740

e Estimated.

8 Computed by subdividing day.

a Computed from estimated concentration graph.
GREEN RIVER BASIN Continued 

YAMPA RIVER NEAR MAYBELL, COLO. Continued

Particle-size analyses of suspended sediment, October 1951 to July 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, siev

W, in distilled water; C, chemically dispersed; M, mechanically dispe

Date of collection

Oct. 3, 1951............

JuneB, 1952............

July 4 ..................

Time

4:00 p.m. 

4:30 p. m.

5:00 p. m. 

6:00 p. m. 

7:00 p.m.

Water 

discharge 

(cfs)

205 

236

13,600 

5,580 

1,920

Suspended sediment

Concentration 

of sample 

(ppm)

335 

12

252 

107 

62

Concentration 

of suspension 

analyzed 

(ppm)

677

840

Percent finer than in

0.002

79

38

0.004

86

47

0.008

95

58

0. 016'

97

70

0.031

97

84
GREEN RIVER BASIN Continued 

LITTLE SNAKE RIVER NEAR LILY, COLO.

LOCATION. About 2 miles upstream from gaging station, which is 6 miles north of Lily, Moffat County, and 1

DRAINAGE AREA. 3,730 square miles, approximately (above gaging station). 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952.

EXTREMES, 1951-52.--Water temperatures: Maximum observed, 72°F July 24; minimum observed, freezing point o

EXTREMES, 1950-52. Dissolved solids (1950-51): 644 ppm Aug. 9-10, 16-17, 24-25, 1951; minimum, 129 ppm Jun

Hardness (1950-51): Maximum, 588 ppm July 20, 1951; minimum, 84 ppm June 21-30, 1951.

Specific conductance (1950-51): Maximum daily, 1,530 micromhos July 20, 1951; minimum daily, 154 micromh

Water temperatures: Maximum observed, 82*F Aug. 16, 1951; minimum observed, freezing point on many days 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductanc

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, In parts per million, water year October 1951 to Septembe

Date of collection

Oct. 19-31, 1951..

Nov. 21, 27-30 ...

Jan. 1-10, 1952 ..

Apr. 17-19, 21-30

July 24-31 .......

Sept. 21-30.......

Mean 

discharge 

(cfs)

107 

120 

63.5 

95.0

91.5 

78.0 

73.6 

67.5 

70.5 

75.0

81.0 

82.5 

86.1 

3,849

6,806 

4,235 

56.9

203 

106 

65.2 

53.6 

21.5 

18.0

Silica 

(SiO,)

18 

19 

21 

24

21 

21 

19 

19 

19 

17

19 

19 

19

18

18 

15 

17 

13 

12 

9.0

Iron 

(Fe)

0.07 

.05 

.01 

.03

.02 

.02 

.04 

.05 

.05 

.02

.02 

.02 

.02

.03

.25 

.05 

.45 

.04 

.12 

.12

Calcium 

(Ca)

30 

39 

56 

60

56 

58 

54 

54 

51 

55

50 

54 

52

68

80 

60 

76 

66 

74 

69

Magnesium 

(Mg)

8.3 

9.6 

15 

17

15 

15 

13 

12 

12 

14

14 

13 

13

20

18 

19 

21 

20 

24 

25

Sodium 

(Na)

91 

79 

74 

67

56 

54 

46 

43 

45 

44

45 

44 

47

98

120 

112 

109 

140 

150 

164

Potassium 

(K)

3.8 

3.4 

7.6 

6.0

1.8 

1.8 

1.8 

1.4 

1.7 

2.2

1.9 

2.4 

2.1

5.3

5.3 

4.1 

5.0 

4.8 

4.3 

4.8

Bicarbonate 

(HCO,)

200 

208 

234 

256

220 

224 

208 

208 

206 

212

218 

208 

220

226

240 

240 

240 

258 

242 

229

Sulfate 

(SO,)

104 

109 

134 

122

104 

101 

86 

82 

87 

88

88 

88 

91

217

265 

214 

255 

253 

315 

351

Chloride 

(Cl)

28 

24 

26 

22

18 

22 

18 

14 

14 

15

14 

15 

15

33

36 

34 

32 

44 

52 

61

Fluoride 

(F)

0.4 

.4 

.2 

.2

.2 

.2 

.2 

.3 

.2 

.4

.4 

.4 

.4

.4

.6 

.6 

.6 

.5 

.4 

.4

Nitrate 

(NO,)

1.4 

1.0 

.4 

.5

1.0 

.8 

.8 

.4 

.4 

.8

.5 

.6 

.6

1.3

1.0 

1.0 

.8 

.9 

1.4 

1.6

Boron 

(B)

0.11 

.10

.07 

.06

.05

.11 

.16

Dissol

(residue 

Parts 

per 

million

378 

380 

445 

441

388 

379 

339 

330 

340 

338

336 

341 

338

585

681 

588 

654 

680 

746 

802

T

p

a

f

0

1

1
70 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

LITTLE SNAKE RIVER NEAR LILY, COLO. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

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

Average

Oct.

_

_

._

_

54

50

45

42

43

43

45

40

45

44

47

41

42

Nov.

32

32

33

39

35

33

36

37

36

35

34

34

32

32

32

32

32

32

32

32

32

..

_

32

32

32

32

33

Dec.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

33

33

32

32

32

32

32

32

32

32

Jan.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

31

32

32

32

32

32

32

32

32

32

32

32

32

Feb.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

_

32

Mar. Apr.

_

_

..

_

_

_

_

~

..

42

44

43

46

43

44

46

47

46

47

44

44

47

May

47

48

48

48

50

53

52

53

48

49

50

52

53

54

53

53

52

54

53

54

54

54

._

_

_

__

June July

_

_

..

..

_

_

_

_

72

68

68

70

68

67

61

60

--

Aug.

64

64

60

60

58

60

60

60

59

54

58

61

59

57

56

56

57

58

59

59

57

59

58

58

60

58

56

58

52

51

58

Sept.

48

49

50

53

55

53

57

53

52

53

55

51

47

45

46

52

47

48

48

49

51

47

46

45

46

45

45

48

48

44

49
GREEN RIVER BASIN Continued 

GREEN RIVER AT JENSEN, UTAH

LOCATION. At bridge on U. S. Highway 40 at Jensen, Uintah County, 15 miles below gaging station, which is 

southeast of Dinosaur National Monument headquarters, 6J miles northeast of Jensen, and 12 miles upstre

RECORDS AVAILABLE: Chemical analyses: June 1947 to September 1952.

Water temperatures: March 1949 to September 1952.

EXTREMES, 1951-52. Dissolved solids: Maximum, 635 ppm Nov. 21-30; minimum, 175 ppm June 11-20. 

Specific conductance: Maximum daily, 933 micromhos Feb. 17; minimum daily, 247 micromhos May 31.

Water temperatures: Maximum observed, 70°F on several days during August; minimum observed, 36*F on sev

EXTREMES, 1947-52. Dissolved solids: Maximum, 867 ppm Dec. 1-10, 1949; minimum, 161 ppm June 1-10, 1948. 

Hardness (1947-51)! Maximum, 494 ppm Nov. 11-20, 1949; minimum. Ill ppm June 1-10, 1948.

Specific conductance: Maximum daily, 1,750 micromhos Nov. 18, 1949; minimum daily, 237 micromhos May 30

Water temperatures (1949-52): Maximum observed, 75°F on several days in August 1949; minimum observed, 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductan

at Salt Lake City, Utah. Records of discharge for gaging station near Jensen for water year October 19

appreciable inflow between water sampling point and gaging station except during periods of heavy local 

Chemical analyses, in parts per million, water year October 1951 to Septembe

Date of collectioa

Oct. 1-10, 1951..

Nov. 11-20 ......

Jan. 1-10, 1952..

Feb. 21-29......

Mean 

discharge 

(cfs)

2,589 

2,151 

2,031 

1,731 

1,306 

1,126

1,271 

1,078 

1,258 

913 

1,259 

1,297

1,335 

1,288 

1.237

Silica 

(SiOJ

13 

11

12 

13

11

Iron 

(Fe)

Calcium 

(Ca)

65 

76

83 

77

88

Magnesium 

(Mg)

26 

34

35 

29

29

 "««« PSC!"

tua \ SiUm

(Na) (K)

76 

66

67 

66

68

Bicarbonate 

(HCO.)

198 

222

240 

225

218

Sulfate 

(SO,)

219 

238

243 

219

248

Chloride 

(Cl)

30 

29

32 

29

34

Fluoride 

(F)

Nitrate 

(NO,)

1.4 

1.9

2.1 

.8

2.4

Boron 

(B)

0.20 

.10

Dissol

(residu

Parts 

per 

million

531 

534 

543 

584 

589 

635

628 

619 

614 

608 

561 

580

613 

598 

574

T

p

a

f

0
GREEN RIVER BASIN Continued

GREEN RIVER AT JENSEN, UTAH Continued

Chemical analyses, in parts per million, water year October 1951 to September 1952 

Date of collection

Mar. 1-10, 1952 .

Apr. 19-20 ......

May 11-20 ......

June 21-22 a. ....

Aug. 1-10 .......

Aug. 11-20 ......

Aug. 21-31 ......

Sept, 1-10 ......

Sept. 11-20......

Sept. 21-30......

Weighted average

Mean 

discharge 

(eta)

1,303 

1,391 

1,715

7,098 

12,210 

14,100 

19,300 

28,860 

23,650 

17,390

24,520 

12, 850 

11,050 

7,582 

5,236 

3,314

3,290 

3,121 

2,325 

1,894 

1,500 

1,316

b6,193

Silica 

(SiO,)

9.8

15 

13

13

10 

9.1 

9.4 

10 

10 

9.9

9.5 

8.6

6.1

-

Iron 

(Fe)

Calcium 

(Ca)

70

56 

38

43

35

57 

58 

55 

57

52 

58

62

-

Magnesium 

(Mg)

22

21

14

13

9.4

19 

19 

19 

19

19 

23

27

Sodium 

(Na)

Potassium 

(K)

93

75 

13

12

9.2

55 

55 

52 

54

53 

60

66

-

Bicarbonate 

(HCO,)

185

180 

128

148

115 

116 

190 

190 

176 

192

172 

178

176

-

Sulfate 

(S04 )

251

194 

57

53

39 

36 

146 

144 

146 

141

141 

175

208

--

Chloride 

(Cl)

38

26 

10

7.5

6.8 

6.2 

21 

23 

22 

22

23 

28

33

Fluoride 

(F)

Nitrate 

(NOS )

2.0

4.9 

1.6

1.0

2.6

3.6 

4.2 

2.1 

3.4

3.3 

3.3

1.5

-

Boron 

(B)

0.09 

.11

--

Dissol

(residue 

Parts 

per 

million

584 

592 

607

547 

478 

205 

232 

216 

223 

206

175

412 

416 

396 

410

396 

453 

506 

488 

506 

496

310

T

p

a

f

0

0

a Not included for computation of weighted averages.

b Represents 99 percent of runoff for water year October 1951 to September 1952.
GREEN RIVER BASIN 73

GREEN RIVER BASIN Continued 

GREEN RIVER AT JENSEN, UTAH Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 12:00 m.7

Day

1

2

3

4

5

6

7

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

Oct.

58

57

57

58

57

56

55

55

56

57

56

55

54

54

54

53

53

53

53

52

52

52

52

53

52

52

52

51

51

51

51

54

Nov.

51

50

50

50

50

49

49

48

48

46

46

40

41

40

40

41

40

40

40

40

40

40

40

40

39

39

39

39

39

~

43

Dec.

39

39

39

39

40

40

40

39

39

39

39

38

38

38

37

37

37

38

38

38

38

38

37

37

37

37

37

37

37

37

37

38

Jan.

36

36

36

37

37

37

36

36

36

37

37

36

37

37

37

37

37

37

36

37

37

38

38

38

38

38

39

39

39

39

37

Feb.

38

38

39

39

39

39

39

39

39

39

39

38

38

39

40

40

40

40

41

40

..

_

~

Mar.

39

39

39

39

39

38

38

38

37

37

37

37

38

38

38

37

38

37

36

36

36

36

37

37

38

38

38

38

37

38

Apr.

38

38

38

39

39

39

39

40

40

41

41

41

42

42

42

44

45

45

45

46

46

46

47

47

47

47

48

48

48

48

-

43

Hay

48

48

49

49

51

50

51

51

51

52

52

52

53

53

52

53

54

54

55

55

54

55

56

57

57

57

60

60

60

60

54

June

_

60

61

61

60

61

60

61

62

62

63

63

63

64

64

65

65

65

66

66

65

65

65

65

66

66

66

67

67

67

64

July

66

66

66

66

65

66

66

67

67

67

67

68

68

68

68

68

68

67

67

68

68

68

67

67

67

67

68

68

68

69

69

67

Aug.

69

70

70

69

69

70

70

70

69

69

70

70

70

70

70

70

69

69

70

70

69

69

69

69

68

68

68

67

68

68

67

69

Sept.

67

67

67

67

67

67

66

66

65

64

62

63

62

60

61

61

60

60

60

60

60

60

59

59

59

60

60

60

60

60

62
74 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR JENSEN, UTAH

LOCATION. At gaging station, 1 mile below Cub Creek and Chew Ranch, 4 miles southeast of

Dinosaur National Monument headquarters, 6i miles nothheast of Jensen, Uintab County,

and 12 miles upstream from Brush Creek.

RECORDS AVAILABLE. Sediment records: May 1948 to September 1952. 

EXTREMES, 1951-52. Sediment concentrations: Maximum daily, 15,800 ppm Apr. 9; minimum

daily, 23 ppm Sept. 27-30.

Sediment loads: Maximum daily, 567,000 tons Apr. 9; minimum daily, 78 tons Sept. 27-30. 

EXTREMES, 1948-52. Sediment concentrations: Maximum daily, 15,800 ppm Apr. 9, 1952;

minimum daily 22 ppm Sept. 21-30, 1951.

Sediment loads: Maximum daily, 567,000 tons Apr. 9, 1952; minimum daily, 66 tonsJan.1-6,1951. 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP

1243. For records of chemical analyses and water temperatures see Green River at

Jensen, Utah, page 71 .

Suspended sediment, water year October 1951 to September 1952

Day

3 * ^

6 ------

8 

13 

15 ------

16 

17 .__ 

18 

19 ----- - 

20 

21 

22 

23 

24 

25 

26 ----- 

27 ----- 

28 ----- 

29 ----- 

30 ----- 

31 

TotalOctober

Mean

charge

(cfs)

1,510 

1,530 

1,830 

2,660 

3,680

3,110 

2,920 

2,990 

2,920 

2,740

2,660 

2,450 

2,290 

2,170 

2,070

2,010 

1,980 

1,980 

1,960 

1,940

1,900 

1,890 

1,880 

1,880 

1,900

2,000 

2,160 

2,190 

2,190 

2,150 

2,200

69, 740

Suspended sediment

Mean 

concentration 

(ppm)

20 

50 

4,100 

11,000 

12, 000

4,400 

3,720 

3,720 

3,660 

2,290

2,660 

1,400 

870 

900 

970

738

--

Tons 

per 

day

a 80 

a210 

a 21, 000 

79,000 

a 120, 000

36,900 

29,300 

30,000 

28,900 

24, 300

a 19, 000 

a 9, 300 

5,380 

5,270 

5,420

e3,700 

e2,600

e3,200

464,760

November

Mean

charge

(cfs)

2,220 

2,060 

1,810 

1,690 

1,680

1,580 

1,450 

1,550 

1,630 

1,640

1,610 

1,670 

1,720 

1,660 

1,540 

1,350 

1,260 

830 

715 

702

932 988" 

956 

1,070 

1,150

1,180 

1,190 

1,240 

1,240 

1,310

41,623

Suspended sediment

Mean 

concentration 

(ppm)

500 

399 

330 

490 

370

160 

170 

440 

670 

600

500 

510 

560 

450 

300

129

75

-

Tons 

per 

day

a3,000 

2,220 

a 1,600 

2,240 

1,680

683 

666 

1,840 

2,950 

2,660

2,170 

2,300 

a 2, 600 

a 2, 000 

a 1,200

336

221 

I e220

33,811

December

Mean

charge

(cfs)

1,340 

1,450 

1,350 

1,430 

1,580

1,370 

1,140 

1,050 

1,020 

980

960 

1,000 

1,020 

1,060 

1,120

1,130 

1,130 

1,120 

1,120 

1,120

1,120 

1,130 

1,170 

1,200 

1,220

1,250 

1,300 

1,350 

1,400 

1,400 

1,300

37,330

Suspended sediment

Mean 

concentration 

(pP«n)

54 

\ 65

60 

50

Tons 

per 

day

207 

193

el70 

170

5,538

e Estimated.

a Computed from estimated concentration graph.
GREEN RIVER BASIN 75

GREEN RIVER BASIN Continued

GREEN RIVER NEAR JENSEN, UTAH Continned 

Suspended sediment, water year October 1951 to September 1952--Continued

Day

2

6 

is ......

 to

25 

28

29 

Total-

£ , __ _

8 

9 

11 

19is 

14 

16 

17 

18 

20 

11 

12 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

January

Mean

discharge

(cfs)

1,100 

980 

900 

800 

780

800 

850 

940 

980 

1,000

1,050 

1,100 

1,200 

1,250 

1,300

1,310 

1,340 

1,350 

1,350 

1,340

1,320 

1,300 

1,290 

1,300 

1,350

1,330 

1,310 

1,290 

1,280 

1,250 

1,250

35,990

3,080 

3,620 

4,140 

3,860 

4,540

5,340 

7,700 

12,700 

13,300 

12,700

12,000 

11,600 

10,800 

10,700 

11,800

14,400 

14,200 

12,200 

12,800 

15,400 

16,900 

18,700 

19,500 

18,000 

16,600 

16,900 

18,800 

20,500 

22,000 

25,100

389,880

Suspended sediment

Mean 

concentration 

(ppm)

56 

49

74 

119

--

Tons 

per 

day

135 

142

264 

416

7,376

April

2,950 

3,000 

3,180 

4,550 

5,230 

5,800 

6,800 

13,000 

15,800 

14,700 

14,400 

12,000 

9,980 

6,230 

5,620

7,200 

7,500 

5,780 

5,610 

6,970 

7,420 

6,600 

6,000 

5,200 

4,400 

3,700 

2,750 

2,700 

4,190 

4,600

24,500 

229,300 

35,500 

47,400 

64, 100

384,000 

a 140, 000 

a 4 50, 000 

567,000 

504,000

467,000 

a 380, 000 

291,000 

180,000 

179,000 

a280,000 

a290, 000 

190,000 

194,000 

290,000 

339,000 

3330,000 

3320,000 

a250,000 

197,000 

169,000 

140, 000 

149,000 

249,000 

312,000

7,141,800

February

Mean

charge

(cfs)

1,250 

1,260 

1,290 

1,320 

1,380

1,400 

1,400 

1,400 

1,350 

1,300

1,290 

1,290 

1,290 

1,290 

1,260

1,270 

1,290 

1,300 

1,300 

1,300

1,290 

1,290 

1,280 

1,240 

1,200

1,200 

1,200 

1,210 

1,220

37,360

Suspended sediment

Mean 

concentration 

(ppm)

108 

259

113 

60

--

Tons 

per 

day

390 

910

393 

198

13,110

May

26,700 

25,400 

25,800 

26,100 

27,700

29,600 

31, 500 

32,800 

32,400 

30,600

28,700 

24,100 

21,400 

21,100 

21,900

23,500 

25,400 

26,300 

23,600 

20,500 

19,200 

19,000 

19,600 

18,300 

17,000 

16,000 

15,400 

15,900 

16,400 

16,800 

17,700

716,400

4,700 

4,100 

4,000 

3,400 

2,790

2,920 

2,790 

2,600 

2,380 

2,300

2,200 

2,190

1,800 

1,800 

1,680 

1,800 

810 

610 

880 

1,420 

1,530 

1,450

--

339,000 

a280, 000 

a280,000 

a240, 000 

209,000

233,000 

237, 000 

230, 000 

208,000 

a!90, 000

alTO, 000 

143,000

e!30,000

92,300 

a 95, 000 

83,000 

82,600 

35,000 

25,400 

37,800 

62,900 

69,400 

69,300

4,581,700

March

Mean

charge

(cfs)

1,260 

1,280 

1,300 

1,300 

1,300

1,300 

1,300 

1,300 

1,330 

1,330

1,320 

1,320 

1,320 

1,340 

1,380

1,400 

1,420 

1,460 

1,480

1,430 

1,380 

1,240 

1,370 

1,560

1,470 

1,460 

1,480 

1,680 

2,550 

3,240

45,800

Suspended sediment

Mean 

concentration 

(ppm)

127 

131 

160

106

190 

320 

700 

2,700

--

Tons 

per 

day

443 

469 

610

405

a 760 

a 1,500 

a4,800 

23,600

43,680

June

19,100 

20,700 

21,700 

23,500 

25,200

27,300 

30,800 

30, 500 

30,800 

31,200

30,500 

29,500 

28,700 

26,800 

23,900

21,600 

20,100 

18,500 

15,800 

14,300 

13,200 

12, 500 

11,400 

10,600 

10,300 

10,000 

10,500 

11,500 

12,200 

11,900

604,600

1,490 

1,550 

1,580 

1,640 

1,900

2,050 

1,710 

1,200 

1,300 

1,280

1,050

950 

950

1,350 

1,480

76, 800 

86,600 

92,600 

104,000 

128,000

151,000 

142, 000 

a 99, 000 

a 110, 000 

108,000

e 83, 000

e43,000

27,200 

26,400

I e 29, 000

60,900 

47,600

2,106,100

e estimated.

a Computed from estimated concentration graph.
76 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

GREEN RIVER NEAR JENSEN, UTAH Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

12

in

19

22

O4

25

net

9*7

90

9O

30 ------

31 

TotalJuly

Mean

charge

(cfs)

10,900 

9,900 

8,840 

7,970 

7,260

6,720 

6,350 

6,180 

5,960 

5,740

5,450 

5,270 

5,400 

5,540 

5,360

5,700 

5,540 

4,980 

4,770 

4,350

3,960 

3,650 

3,470 

3,300 

3,140

3,140 

3,000 

2,920 

3,230 

3,260 

3,380

164,630

Suspended sediment

Mean 

concentration 

(ppm)

1,400

600 

530 

430 

380 

400

353

380 

260 

269

298 

500 

600 

600 

652 

615 

690 

625 

605 

630 

1,050

Tons 

per 

day

41,200 

fe 24, 000

10, 900 

9,090 

7,170 

6,110 

6,200

5,190

67,600

5,110 

3,350 

3,160

3,190 

a4,900 

a 5, 600 

a 5, 300 

5,530

5,210 

5,590 

4,930 

5,280 

5,550 

9,580

299,740

August

Mean

charge

(cfs)

3,340 

3,350 

3,320 

3,320 

3,230

3,360 

3,230 

3,340 

3,280 

3,130

3,140 

3,440 

3,660 

3,630 

3,440

3,240 

2,930 

2,690 

2,580 

2,460

2,400 

2,370 

2,280 

2,300 

2,320

2,290 

2,200 

2,320 

2,400 

2,390 

2,300

89,680

Suspended sediment

Mean 

concentration 

(ppm)

2,050

95

--

Tons 

per 

day

e7, 500 

e9,100

el 5, 000 

659

e4,500

217,454

September

Mean

charge

(cfs)

2,150 

2,090 

2,150 

2,150 

1,960

1,850 

1,750 

1,690 

1,640 

1,590

1,530 

1,510 

1,480 

1,480 

1,480

1,480 

1,490 

1,520 

1,530 

1,500

1,460 

1,410 

1,390 

1,340 

1,310

1,280 

1,260 

1,260 

1,240 

1,210

47, 100

Suspended sediment

Mean 

concentration 

(ppm)

426

153

44

44

1 :

Tons 

per 

day

e2,800 

el, 400

e520

178

160 

78

26, 122

Total discharge for year (cfs-days) 

Total load for year (tons) .........

2,280,133

14,941,191

e Estimated.

a Computed from estimated concentration graph.
GREEN RIVER BASIN--Continued 

GREEN RIVER NEAR JENSEN, UTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to 

(Methods of analysis: B, bottom withdrawal tube; 0, decantation; P, pipette; S, sie

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Oct. 15, 1951 ..

Jan. 5, 1952....

QAnf 19

Sept. 25........

Time

5:00 p. m. 

4:00 p. m. 

2:00 p.m. 

2:00 p. m.

2:00 p. m. 

3:30 p.m. 

5:30 p.m. 

3:30 p.m. 

4:30 p. m. 

4:30 p.m. 

4:00 p.m.

5:30 p. m. 

3:45 p.m. 

11:00 a.m. 

6:30 p.m. 

6:30 p.m. 

12:45 p.m. 

6:00 p.m.

Water 

discharge 

(cfs)

2,050 

1,250 

1,120 

1,220

780 

1,300 

1,350 

1,380 

1,260 

1,200 

1,300

1,680 

29,000 

16,900 

26,400 

3,080 

1,520 

1,310

Water 

temperature 

CF)

Suspended sediment

Concentration 

of sample 

(ppm)

940 

112 

68 

52

66 

41 

98 

99 

166 

63 

170

175 

2,870 

2,030 

2,110 

616 

116 

49

Concentration 

of suspension 

analyzed 

(ppm)

1,670

5,490 

1,800 

3,190

Percent finer than 

0.002

72

14 

34

0.004

82

27 

17 

39

0.008

91

20 

48

0.016

95

39 

23 

56

0.031

9

2

6
GREEN RIVER BASIN Continued 

WHITE RIVER NEAR WATSON, UTAH

LOCATION. At gaging station, just downstream from Evacuation Creek, and 7 miles north of Watson, Uintah Cou

DRAINAGE AREA. 4,020 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952. 

EXTREMES, 1951-52 Dissolved solids: Maximum, 957 ppm Apr. 7-8; minimum, 268 ppm June 1-10, 11, 14-20.

Specific conductance: Maximum daily, 1,320 micromhos Apr. 7; minimum daily, 374 micromhos June 22.

Water temperatures: Maximum observed, 78°F on several days during July to September; minimum observed, f

EXTREMES, 1950-52. Dissolved solids: Maximum, 957 ppm Apr. 7-8, 1952; minimum, 230 ppm June 21-30, 1951.

Specific conductance: Maximum daily, 1,320 micromhos Apr. 7, 1952; minimum daily, 319 micromhos June 29, 

Water temperatures: Maximum observed, 80°F July 3, 1951; minimum observed, freezing point on many days du

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductanc

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, in parts per million, water year October 1951 to Septembe

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20 ......

Oct. 21-31 ......

Nov. 11-20......

Dec. 11-20......

Dec. 21-31 ......

Jan. 1-10,1952... 

Jan. 11-20 ......

Jan. 21-31 a .....

Feb. 11-20 ......

Feb. 21-29 ......

Mar. 1-10 ......

Mar. 11-20 ..... 

Mar. 21-31 a ....

Apr. 1-6, 9-10 . .

Apr. 21-23......

Aar. 24-30 ......

Mean 

discharge 

(cfs)

413 

393 

419 

379 

364 

404

347 

338 

339 

314 

348 

321

337 

337 

332 

332 

327 

347

1,225 

2,755 

1,136 

1,047 

1.293

Silica 

(810.)

18 

19

21 

17

17 

13

12 

15 

15

Iron 

(Fe)

Calcium 

(Ca)

71 

72

89

77

80

77

89 

82 

63

Magnesium 

(Mg)

23 

24

32 

24

26 

25

36 

32 

26

Sodium 

(Na)

Potassium 

(K)

76 

74

80 

72

85 

93

98 

84 

66

Bicarbonate 

(HCO.)

224 

212

234 

218

234 

222

256 

277 

235

Sulfate 

(S04 )

161 

168

205 

164

180 

201

293 

213 

159

Chloride 

(Cl)

60 

64

86 

69

76 

72

46 

37 

29

Fluoride 

(F)

Nitrate 

(NO,)

0.4 

.1

1.0 

1.2

7.3 

7.1

2.7 

23 

9.8

Boron 

(B)

0.11 

.04

"

09

Dissolv

(residue 

Parts 

per 

million

562 

502 

S53 

526 

536 

541

607 

648 

534 

662 

552

583 

586 

587 

572 

606

685 

957 

722 

614 

479

To

p

ac

fo

0

a Not included for computation of the weighted averages.
May 1-10, 1952 . . 

Hay 11-20 ......

June 11, 14-20... 

June 12-13 ......

July 1-6, 8-10 . . .

July 11-20.......

July 21-31 .......

Aug. 11-20 ......

Sept. 1-10 ......

Sept. 11-18 ..... 

Sept. 19-30 .....

Weighted average

2,473 

2,761

2,058

3,864

4,292 

4,960

2,295

1,136 

1,380

758

563

672

881

703

653

576 

467

b996

14

11

14 

18~

19

19

22

17

17-

53 

59

54 

56

--

64

84

94

76

71-

24 

19

14 

15-

22

29

34

27

26-

46 

43

20 

38-

70

76

99

66

62-

193 

231

200 

210"

254

269

467

250

216

--

124 

90

48 

70

--

128

182

139

174

162"

22 

22_

14 

20

43

43

40

39

50

--

14 

5.5_

2.3 

14

--

.8

28

8.0

2.7

2.8-

--

_. _

.06___

__-

418 

364

367

268

268 

350

300

351 

621

472

483

588

663

528

518

510 

532

442

b Represents 98 percent of runoff for water year October 1951 to September 1952.
80 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

WHITE RIVER NEAR WATSON, UTAH Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 3:30 p. mj

Day

1

2

3

4

5

6

7

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

Oct.

62

58

52

52

50

50

55

53

52

52

50

52

52

52

54

52

55

50

50

48

42

42

45

45

44

45

45

40

40

38

49

Nov.

35

36

33

34

38

40

40

35

34

38

36

35

33

32

31

31

31

35

31

32

35

35

32

35

32

31

32

32

31

34

Dec.

32

34

35

32

32

_

32

31

31

31

31

31

32

32

_

_

34

32

31

31

32

32

33

32

32

32

32

34

32

32

Jan.

31

_

31

31

31

31

31

32

31

31

32

31

32

31

32

33

33

33

32

32

33

32

33

32

31

31

32

32

31

31

32

Feb.

31

31

32

32

31

32

31

32

31

33

32

31

31

32

31

33

32

33

32

31

31

32

32

31

31

31

32

33

33

32

Mar.

31

31

32

34

34

34

32

33

_

32

33

32

33

32

32

34

_

33

34

32

32

33

33

33

33

33

34

34

34

35

33

33

Apr.

34

34

33

32

34

34

42

32

34

32

33

34

34

34

33

32

50

50

50

50

52

50

50

52

52

52

53

53

52

54

42

Hay

52

53

_

53

54

54

53

52

53

54

58

58

60

60

50

52

52

53

54

52

53

53

54

54

53

55

58

58

60

60

55

June

60

62

62

62

62

62

65

65

65

68

67

65

68

68

65

62

68

66

68

62

64

60

60

64

62

60

62

62

68

68

64

July

68

68

68

66

68

68

66

68

66

68

66

66

68

70

70

68

70

70

70

68

76

68

75

75

75

75

75

72

76

78

78

70

Aug.

74

72

76

78

72

72

74

74

78

72

72

72

76

74

78

78

76

78

78

76

74

78

76

72

78

76

78

76

76

72

74

75

Sept.

70

70

70

78

76

78

78

72

72

74

72

72

70

70

68

68

68

70

74

74

72

72

74

72

72

78

76

76

72

72

73
GREEN RIVER BASIN--Continued

GREEN RIVER NEAR OURAY, UTAH

LOCATION. At gaging station, 2 3/4 miles upstream from Willow Creek and 3 miles southwest of Ouray, Uin

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952.

Sediment records: December 1950 to September 1952.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of specific conducta

at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in 

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951 .

Oct. 21-23,27-28, 

30-31..........

Nov. 2, 4, 6, 8, 10 

Nov. 11-20......

Nov. 21-30......

Apr. 4-5, 9-10, 

1952. ..........

Apr. 19, 25. ..... 

May 2, 12, 17, 23

June 3, 9, 14, 23 

July 10-20 ......

July 21-31. ......

Aug. 14-20......

Sept. 11-15 ..... 

Sept. 16-30. .....

Mean 

discharge 

(cfs)

3,289 

3,089

3,909 

2,938 

2,625 

2,368

14,720 

16,600 

31,700

32,480 

7,273 

4,636

4,728 

4,961 

4,319 

3,439 

2,726

 ). S7S

Silica 

(SiOa)

13 

13

17 

18 

12

11

Iron 

(Fe)

Calcium 

(Ca)

68 

76

97 

72 

52

40

Magnesium 

(Mg)

30 

36

36 

24 

15

12

Sodium 

(Na)

Potassium 

(K)

90 

80

110 

55 

33

21

Bicarbonate 

(HCO,)

206 

228

228 

218

198

152

Sulfate 

(S04 )

251 

257

368 

175 

80

56

Chloride 

(Cl)

40 

40

41 

25 

12

8.0

Fluoride 

<F)

Nitrate 

<NOS)

1.1 

.8

2.2 

3.4 

.4

.4

Boron 

(B)

0.22

Di

(re

Parts 

per 

million

633 

604

678 

622 

642 

670

804 

493 

302

224 

384 

434

516 

515 

576

585
82 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR OURAY, UTAH. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

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

Average

Oct.

66

65

68

58

56

..

57

62

57

62

62

56

57

55

55

54

54

54

52

51

50

54

45

"

_

45

-.

47

48

58

Nov.

..

40

_

40

40

_

37

42

42

41

40

38

35

35

34

34

35

._

35

34

36

34

33

35

34

--

--

Dec. Jan. Feb. Mar. Apr.

..

34

--

..

41

_

_

..

..

..

_

--

_

_

..

--

_

_

_

._

--

Hay June July

..

--

_

-

..

72

75

74

75

75

72

75

74

70

75

74

75

75

75

75

80

80

75

75

Aug.

75

75

78

80

78

78

_

70

69

70

74

77

73

69

70

68

80

--

76

66

66

--

60

64

73

Sept.

60

70

70

72

74

_

71

66

64

66

70

70

65

67

69

70

--

65

68

69

70

70

71

68

67

65

66

--

68
GREEN RIVER BASIN 83

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR OURAY, UTAH--Continued 

Suspended sediment, water year October 1951 to September 1952

Day

10 

11 

12 

IS 

14 is 

17 

19 

20 

21 

24__. __

27 

30 

81 

Total3 

4 

5 

e 

g

9 

10 

12 

14 

15 

10 

16 

19 

20 

22 

23 

24 

26 

26 

27 

28 

» 

30 

31 

Total

October

Mean

charge

(cfs)

1,940 

1,960 

2,140 

2,870 

3,460

4,630 

4,440 

3,930 

3,740 

3,780

3,640 

3,510 

3,280 

3,150 

3,010 

2,920 

2,840 

2,840 

2,840 

2,860

2,860 

2,900 

2,920 

2,950 

2,930

3,230 

6,130 

5,220 

3,950 

3,760 

3,570

104,000

2,200 

2,100 

2,000 

1,800 

1,700 

1,550 

1,450 

1,450 

1,450 

1,450

1,450 

1,600 

1,800 

2,050 

2,150

2,250 

2,350 

2,400 

2,350 

2,350

2,350 

2,370 

2,350 

2,350 

2,350

2,300 

2,360 

2,250 

2,250 

2,260 

2,200

63, 170

Suspended sediment

Mean 

concentration 

(PP«n)

150 

200 

520 

4,150 

6,420

7,330 

10,100 

11,100 

7,480 

4,300

3,300 

3,700 

3,210 

1,920 

1,530 

1,050 

980 

880 

790 

731

732 

607 

549 

550 

480

1,600 

14,900 

11,500 

5,300 

2,100 

1,050

Tons 

per 

day

786 

1,060 

3,000 

32,200 

60,000

91,600 

121,000 

118,000 

75,500 

43,900

32,400 

35, 100 

28,400 

16,300 

12,400 

8,280 

7,510 

6,750 

6,060 

5,640

5,650 

4,750 

4,330 

a4,400 

3,800

14,000 

247,000 

162,000 

a 57, 000 

21,300 

10, 100

1,240,216

January

131 

131

725 

838

c 23, 000

November

Mean

charge

(cfs)

3,460 

3,390 

3,220 

3,110 

2,880

2,860 

2,740 

2,650 

2,600 

2,680

2,770 

2,740 

2,780 

2,860 

2,870 

2,720 

2,570 

2,450 

2,380 

2,110

2,270 

2,250 

2,340 

2,330 

2,340

2,380 

2,450 

2,440 

2,440 

2,440

79,520

Suspended sediment

Mean 

concentration 

(ppm)

1,010 

833 

800 

798 

750

720 

600 

447 

403 

408

531 

402 

498 

457 

510 

«0 

410 

452 

524 

770

880 

828 

649 

650 

663

630 

570 

460 

440 

425

--

Tons 

per 

day

9,440 

7,620 

a7,000 

6,700 

a 5, 800

5,560 

a 4, 400 

3,200 

2,830 

2,950

3,970 

2,970 

3,740 

3,530 

3,950 

2,940 

2,840 

2,990 

3,370 

a 4, 400

a 5, 400 

5,030 

4,100 

a 4, 100 

4,190

4,050 

3,770 

3,030 

a 2, 900 

2,800

129, 570

February

2,200 

2,200 

2,250 

2,300 

2,400

2,450 

2,500 

2,600 

2,500 

2,300

2,250 

2,250 

2,250 

2,250 

2,300 

2,300 

2,300 

2,300 

2,300 

2,300

2,350 

2,300 

2,200 

2,200 

2,200

2,200 

2,200 

2,200 

2,200

66,550

100 

85

83 

159

-

594 

597

527 

944

c 17, 000

December

Mean

charge 

(cfs)

2,450 

2,530 

2,560 

2,650 

2,670

2,700 

2,700 

2,600 

2,100 

1,300

1,350 

1,420 

1,500 

1,550 

1,600 

1,650 

1,750 

1,800 

1,900 

2,000

2,100 

2,200 

2,200 

2,250 

2,250

2,300 

2,350 

2,400 

2,400 

2,450 

2,500

66,180

Suspended sediment

Mean 

concentration 

(ppm)

446 

446 

376 

345 

450

600 

520 

380 

300 

230

180

131

135 

135 

137

150

-

Tons 

per 

day

2,950 

3,050 

2,600 

2,470 

3,240

4,370 

3,790 

2,670 

a 1,700 

a 810

a 660

558

a 660 

a 690 

758

b940

43, 166

March

2,200 

2,200 

2,150 

2,200 

2,200

2,100 

2,230 

2,250 

2,300 

2,300

2,350 

2,300 

2,300 

2,300 

2,300

2,300 

2,350 

2,400 

2,450 

2,500

2,500 

2,500 

2,450 

2,400 

2,350

2,500 

2,600 

2,800 

3,000 

3,300 

3,800

75,880

116 

152

--

698 

944

c 34, 000

a Computed from estimated concentration graph.

b Computed from water-sediment discharge curves.

c Includes loads for missing days computed from water-sediment discharge curves.

I Stage discharge relation affected by ice Dec. 6-Apr. 4 .
84 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR OUHAY, UTAH--Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

Day

11

99

27

31 

Totalg

10 -

12 

17 

18

21 - 

22 

23 

24 

25 

26 ----- 

27 

28 

29 

30 

31 

Total

April

Mean

charge

(cfs)

5,400 

7,000 

13, 500 

11,000 

11,800

11,000 

13,000 

15,900 

18, 900 

17,200

15,600 

14,900 

13,700 

12, 600 

12, 600

13,800 

15,300 

14,600 

13,700 

15,300

17, 200 

18,400 

19,900 

20,400 

19, 500

20,000 

22,000 

24, 600 

26,400 

28, 200

483, 400

Suspended sediment

Mean 

concentration 

(ppm)

1,500

15,300 

16, 800 

14,400

6,810 

6,720

8,800 

5,320

Tons 

per 

day

-

44,600

637,000 

857,000 

669, 000

232,000 

249,000

473, 000 

280,000

c 9, 900,000

July

17, 500 

15,800 

13,900 

12,100 

11,100

10,400 

10, 200 

9,420 

8,820 

8,470

8,160 

7,900 

7,520 

7,120 

7,180 

6,860 

6,880 

6,910 

6,800 

6,200

5,800 

5,300 

4,800 

4,500 

4,340 

4,290' 

4,380 

4,250 

4,290 

4,320 

4,730

240, 240

723

690 

704 

870 

820 

900 

800 

1,180 

1,000 

990

1,800 

1,100 

543 

391 

390 

410 

452 

476 

1,130 

950 

2,390

--

b27,000

14,700 

14, 300 

16,700 

15,900 

16,700 

14,900 

22,000 

18,400 

16,600

28, 200 

15,700 

7,040 

4,750 

4,570 

4,750 

5,350 

5,460 

13,100 

11,100 

30, 500

577,720

May

Mean

charge

(cfs)

29,800 

30,800 

31,300 

32,600 

33,600

35,000 

36, 100 

38, 500 

40,600 

40,400 

38,000 

37,600 

33, 800 

32,000 

32,100

32,600 

33,200 

33,200 

32, 200

28,700

26,100 

25, 600 

25,200 

24, 800 

23,100

22,400 

22, 400 

22,800 

24, 200 

25,900 

27,200

951, 800

Suspended sediment

Mean 

concentration 

(ppm)

5,460

3,000 

2,670

2,620

--

Tons 

per 

day

454,000

308,000 

271,000

235,000

c 8,300,000

August

4,750 

5,040 

4,820 

4,770 

4,580 

4,410 

4,470 

4,470 

4,450 

4,750

6,860 

6,790 

5,810 

6,640 

5,740 

5,430 

4,940 

4,580 

4,290 

4,110

4,050 

4,020 

3,800 

3,800 

3,600 

3,470 

4,320 

5,700 

4,920 

5,200 

4,630

148,210

2,260 

5,600 

5,800 

2,100 

1,960 

2,080 

2,200 

1,460 

1,300 

1,500

6,100 

8,100 

5,100 

3,500 

3,270 

4,200 

3,690 

2,600 

1,520 

1,200

1,900 

4,590 

3,400 

2,800 

2,190 

2,000 

4,350 

19,000 

18,200 

15,200 

13,900

--

29,000 

d76,200 

d75,500 

27,000 

24, 200 

24, 800 

a 27, 000 

17,600 

a 16, 000 

a 19, 000

a 110, 000 

a 150, 000 

a 80, 000 

53, 300 

50,700 

61,600 

49, 200 

32, 200 

17, 600 

13, 300

20, 800 

49, 800 

34, 900 

a 29, 000 

21,300 

18,700 

50,700 

a 290, 000 

242,000 

213, 000 

174,000

2,098,400

June

Mean

charge

(cfs)

29,000 

30,400 

31,500 

31,800 

33,000

34,300 

36,500 

39,600 

41,400 

42,400

43,400 

42,600 

40, 900 

39, 100 

37,100

34, 400 

31,500 

29, 400 

27,000 

23, 600

20,900 

19,400 

17,900 

16,300 

16,200 

16,000 

16, 500 

17,600 

18,200 

18,400

876, 300

Suspended sediment

Mean 

concentration 

(ppm)

2,000

1,350 

1,360

1,210

--

Tons 

per 

day

170, 000

151,000 

144,000

58,500

c 3,400,000

September

4,070 

3,850 

3,690 

3,570 

3,470 

3,280 

3,090 

3,030 

3,250 

3,090

2,860 

2,720 

2,700 

2,700 

2,650 

2,610 

2,570 

2,540 

2,500 

2,510

2,470 

2,420 

2,380 

2,330 

2,310 

2,260 

2,220 

2,190 

2,140 

2,140

83,610

5,300 

2,590 

1,650 

1,410 

1,350

1,330 

1,300 

1,200 

2,570 

1,550

920 

820 

733 

720 

619 

639 

860 

930 

1,130 

730

590 

420 

480 

503 

500 

500 

509 

480 

440 

400

--

58, 200 

26,900 

16,400 

13,600 

12,600

a 12, 000 

a 11, 000 

a 9, 800 

22, 600 

12,900

7,100 

6,020 

5,340 

5,250 

4,430 

4,500 

5,970 

6,380 

7,630 

4,950

3,930 

2,740 

3,080 

3,160 

3,120 

3,050 

3,050 

a 2, 800 

2,540 

2,310

283, 350

Total discharge for year (cfs-days) 

Total load for year (tons)..........

. 3,239,060 

.c 26,046,422

a Computed from estimated concentration graph.

b Computed from water-sediment discharge curves.

c Includes loads for missing days computed from water-sediment discharge curves.

f Stage discharge relation affected by ice Dec. 6-Apr. 4.
GREEN RIVER BASIN Continued 

GREEN RIVER NEAR OURAY, UTAH. Continued

Particle-size analyses of suspended sediment, water year October 1951 to Sep

(Methods of analysis: B, bottom withdrawal tube; O, decontation; P, pipette; 8, s

W, in distilled water; C, chemically dispersed; M, mechanically dis

Date 

of 

collection

May 23, 19S2 .....

June 23 ...........

Aug. 20 ..........

Sept. 10 ..........

Sept. 20..........

Sept. 30 ..........

Time

11:30 a.m. 

11:10 a.m. 

2:50 p.m. 

5:40 p. m. 

3:20 p. m. 

1:10 p. m.

9:25 a. m. 

7:35 a.m. 

7:55 a.m. 

5:50 p. m. 

5:00 p. m. 

5:30 p.m.

Water 

discharge 

(cfs)

2,880 

2,670 

25,100 

41,500 

18,000 

5,300

5,660 

4,110 

5,640 

3,030 

2,520 

2,140

Water 

temperature 

CF)

Suspended sedimen

Concentration 

of sample 

(ppm)

742 

615 

2,450 

1,100 

1,230 

826

3,240 

1,000 

14,900 

1,170 

518 

311

Concentration 

of suspension 

analysed 

(ppm)

1,180

3,960

1,310

3,200 

2,040 

4,600 

1,550

Percent finer tha

0.002

39

-

16

26

0.004

46

29

19

52 

49 

38 

36

0.008

53

--

24

42

0.016

56

41

28

71 

65 

66 

53

0.031

6

-

3

6
GREEN RIVER BASIN Continued 

WILLOW CREEK NEAR OURAY, UTAH

LOCATION. At gaging station 8 miles upstream from mouth and 10 miles south of Ouray, Uintah County.

DRAINAGE AREA. 967 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952. 

EXTREMES, 1951-52. Specific conductance: Maximum daily, 3,760 micromhos Oct. 1; minimum daily, 673 mic

Water temperatures: Maximum observed, 84°F July 23; minimum observed, freezing point on many days dur

EXTREMES, 1950-52. Specific conductance: Maximum daily. 8,770 micromhos July 8, 1951; minimum dailv 67

Water temperatures: Maximum observed, 89°F July 14, 1951; minimum observed,freezing point on many day

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 g

Chemical analyses, in parts per million, water year October 1951 t

Date of collection

Oct. 1, 1951 .....

Oct. 11, 13-14, 

17-18, 24 ...... 

Nov. 3-5, 10 ....

Nov. 16-20 ;.....

Jan. 1-10, 1952 ..

Feb. 21-29 ......

Apr. 11-20 ......

Apr. 21-30 ......

Mean 

discharge 

(cfs)

4.0 

8.0

8.1 

11.9 

13.5 

12.8 

12.4 

14.0

12.9 

13.0 

13.0 

11.4 

12.0 

12.0

12.0 

12.0 

12.0 

14.6 

16.0 

16.0 

22.1

67.9 

89.0 

78.2 

125

Silica 

(SiO,)

21

22 

25

25

20 

20

14 

13

19

Iron 

(Fe)

0.06 

.06

Calcium 

(Ca)

83

89 

126

112

92 

91

91 

81

82

Magnesium 

(Mg)

139

101 

167

110

74 

73

74 

70

62

 sr PC"

(NaJ (K)

451

293 

529

261

180 3.0 

180 3.1

186 

164

121

Bicarbonate 

(HCO,)

648

552 

780

656

510 

506

500

462

386

Sulfate 

(S04)

1,110

742 

1,360

684

465 

470

470

420

362

Chlorids 

(CD

50

34 

66

34

23 

23

24

21

18

Fluoride 

(F)

-

0.2 

.3

--

--

--

Nitrate 

(NO,)

1.7

2.2 

3.9

2.3

2.9 

2.2

4.7

2.7

3.9

Boron 

(B)

1.5

-

1.1

--

--

.60

Diss

Parts 

per 

million

2,170

1,560 

2,660

1,550

1,110 

1,110

1,110

999

858
May 1-10, 1952 ..

Aug. 21-24, 29-31

Sept. 11-20 ..... 

Sept. 21-30 .....

Weighted average

288 

227 

157

116 

67.6 

54.0 

36.4 

25.9 

14.5 

27.0 

87.0

36.1 

30.9 

27.9 

29.2 

27.4 

30.0

b49.1

18

19 

21

21 

19

-

..

73

75 

71

79 

70

..

40

67 

96

69

77

.-

45

134 

248

188 

206

..

316

392

464

431

a 412

163

388

660

480

539

10

20

30

25

28

-

-

-

-

-

2.3

2.0

2.1

1.8

1.1

-

-

1.5

-

--

507

898

1,360

1,080

1,140

a Includes equivalent of 28 parts per million of carbonate (CO,).

b Represents 94 percent of runoff for water year October 1951 to September 1952.
88 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

WILLOW CREEK NEAR OURAY, UTAH Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

61

68

61

55

58

55

57

60

61

64

55

~

_

54

52

..

~

Nov.

_

42

45

42

42

40

40

36

42

41

33

36

32

32

32

32

34

33

33

33

34

34

32

32

32

32

~

36

Dec.

_.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Jan.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Feb.

32

32

32

32

32

32

32

32

32

32

..

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

--

32

Mar.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

3fr

32

32

32

32

32

32

32

32

32

32

32

32

32

Apr.

34

35

40

36

50

43

53

50

51

53

48

51

52

54

52

48

52

52

53

54

54

58

59

59

60

60

58

55

54

57

51

May

58

58

60

61

60

58

56

48

50

52

52

54

54

57

54

51

50

54

55

56

53

51

56

58

64

55

56

55

59

59

56

55

June

57

57

60

60

64

60

63

60

61

60

68

58

62

70

68

66

70

66

61

60

70

70

68

59

57

65

68

71

72

74

~

64

July

73

76

78

76

69

72

72

70

74

73

66

63

71

75

74

74

81

75

76

71

82

84

81

82

79

81

79

76

70

64

75

Aug.

74

72

70

74

74

72

77

72

69

67

68

75

76

77

66

79

67

69

71

72

69

74

63

70

_

65

62

68

71

Sept.

60

72

71

72

71

65

66

68

62

61

64

67

64

63

60

56

65

66

55

57

56

52

50

52

54

55

55

59

61

~

61
GREEN RIVER BASIN Continued 

PRICE RIVER AT WOODSIDE, UTAH

LOCATION. At bridge on U. S. Highway 50 at Woodside, 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 1952.

Water temperatures: February 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 8,220 ppm Dec. 11; minimum, 592 ppm May 21-31.

Hardness: Maximum, 3,010 ppm Dec. 11; minimum, 353 ppm June 1-3, 6-10.

Specific conductance: Maximum daily, 8,540 micromhos Dec. 11; minimum daily, 814 micromhos June 1.

Water temperatures: Maximum observed, 89°F July 30; minimum observed, freezing point on many days durin

EXTREMES, February 1951-September 1952. Dissolved solids: Maximum, 8,220 ppm Dec. 11, 1951; minimum, 592 

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 June 1 

Water temperatures: Maximum observed, 89T July 30, 1952.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific c

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 giv

Chemical analyses, in parts per million, wster year October 1951 to Septem

Date of collection

Oct. 1-10, 1951..

Dec. 21-31 ...... 

Jan. 1-10, 1952 ..

Feb. 1-10........

Mean 

discharge 

(cfs)

66.0 

34.9 

164 

45.1 

45.2 

67.0

39.0 

22.0 

26.0 

26.0 

26.0 

26.0 

29.0 

37.7

44.5 

50.0 

50.0

Silica 

(SiO.)

12 

10 

12 

14 

11 

12

12

17 

15 

12 

13 

12 

12

12 

10 

11

Iron 

(Fe)

0.16 

.18 

.60 

.05 

.05 

.04

.03

.08 

.08 

.07 

.10 

.08 

.03

.08 

.10 

.06

Calcium 

(Ca)

222 

280 

295 

298 

318 

262

312 

432 

400 

342 

308 

320 

277 

270

270 

264 

261

Magneslum 

(Mg)

212 

293 

251 

309 

316 

256

338 

469 

412 

320 

281 

289 

247 

267

281 

267 

267

Sodium 

(Na)

716 

985 

820 

978 

970 

764

1,000 

1, 

1,220 

910 

840 

858 

748 

843

887 

850 

842

Potassium 

(K)

10 

9.6 

8.8 

14 

17 

6.4

5.2 

520 

18 

15 

9.6 

8.6 

8.1 

8.7

8.6 

8.7 

8.6

Bicarbonate 

(HCO.)

298 

328 

316 

352 

404 

375

467 

646 

650 

579 

520 

517 

474 

460

463 

448 

428

Sulfate 

(804)

2,480 

3,440 

3,090 

3,480 

3,560 

2,810

3,640 

5,310 

4,380 

3,330 

3,020 

3,230 

2,720 

2,920

3,090 

2,930 

2,920

Chloride 

(Cl)

81 

113 

94 

109 

117 

88

120 

175 

142 

113 

102 

106 

90 

96

101 

98 

99

Fluoride 

(F)

0.5 

.5 

.6

.4 

.6

.3 

.5

.2 

.5 

.3 

.2

.2 

.2 

.2

Nitrate 

(NO,)

0.5 

10 

7.0 

14 

15 

13

13

17 

17 

15 

14 

13 

9.8

14 

12 

14

Boron 

(B)

0.59 

.49

.65 

.59

.33 

.33

Diss

Parts 

per 

million

3,880 

5,300 

4,730 

5,390 

5,520 

4,400

5,670 

8,220 

6,930 

5,350 

4,840 

5,090 

,350 

,650

,890 

,660 

,630
GREEN RIVER BASIN Continued 

PRICE RIVER AT WOODSIDE, UTAH Continued

Chemical analyses, in parts per million, water year October 1951 to September 195

Date of collection

Mar. 1-10, 1952.

Apr. 11-19......

May 1-10

May 11-16,18-20.

June 1-3, 6-10...

June 21-30 ......

July 11-20 ......

Aiur 11 91

Aug. 22-26, 28-31 . 

Aug. 27..........

Sept. 21-30.......

Weighted average

Mean 

discharge 

(cfs)

60.0 

114 

98.8 

475

328 

329 

1,194 

2,147 

1,617 

2,290 

1,484

1,404 

1,810 

775 

405 

214 

119 

108

100 

111 

183 

802 

93.2 

103 

73.8

b328

Silica 

(SiO.)

9.7 

8.4 

9.3 

8.4

9.2 

9.8 

12 

14 

13

12 

10

11 

11 

7.0 

7.8 

7.1

16 

14 

13 

13 

13 

9.3 

6.0

12

Iron 

(Fe)

0.08 

.07 

.07 

.06

.07 

.06 

.06 

.05 

.05

.03 

.05

.05 

.05 

.04 

.07 

.10

.05 

.07 

.07

.08 

.07 

.08

0.06

Calcium 

(Ca)

236 

214 

242 

134

215 

140 

130 

108 

88

78 

79

91 

109 

129 

170 

190

228 

226 

186 

138 

230 

185 

190

125

Magnesium 

(Mg)

118 

212 

246 

95

175 

122 

64 

51 

47

39 

38

47 

71 

102 

149 

148

160 

158 

103 

34 

155 

147 

192

81

Sodium 

(Ha)

728 

705 

800 

382

516 

300 

142 

92 

71

65 

67

80 

166 

240 

375 

425

460 

465 

284 

1 

460 

465 

602

203

Potassium 

(K)

7.9 

7.9 

8.0 

6.7

9.1 

6.6 

5.6 

5.2 

3.8

3.3 

3.9

3.7 

5.1 

6.5 

7.9 

9.2

10 

9.8 

7.8 

48 

9.2 

8.9 

9.2

5.4

Bicarbonate 

(HCO.)

388 

352 

386 

220

262 

287 

267 

293 

288

262

250 

256 

252 

282 

264 

264 

260

314 

288 

290 

272 

306 

286 

268

283

SuUate 

(SO,)

2,470 

2,410 

2,740 

1,240

1,990 

1,160 

600 

393 

301 

762 

245

267 

647 

339 

622 

957 

1,520 

1,630

1,870 

1,860 

1,180 

517 

1,790 

1,700 

2,130

778

Chlorids 

(Cl)

84 

82 

94 

42

64 

47 

27 

19 

16 

22 

14

14 

22 

20 

26 

36 

52 

54

64 

60 

42 

32 

62 

55 

74

31

Fluoride 

<F)

0.4 

.4 

.3 

.6

.3 

.2 

.3 

.3 

.3

.4 

.2

.3 

.3 

.3 

.3 

.4

.3 

.4 

.6

.4 

.4

.5

0.3

Nitrate 

(NO,)

12 

11 

11 

6.3

8.3 

5.9 

2.5 

2.2 

3.0

5.9 

4.0

2.4 

3.0 

3.2 

2.9 

2.7

2.9 

2.0 

2.6 

.5 

3.4 

4.4 

3.8

4.2

Boron 

(B)

0.25

.20 

.11

.08 

.22

.33 

.34

Dissolv

(su

Parts [ 

per 

million

3,970 

3,820 

4,340 

2,020

3,120 

1,930 

1,110 

829 

685

592 

606

719 

1,150 

1,610 

2,410 

2,590

2,970 

2,940 

1,960 

1,020 

2,870 

2,700 

3,340

1,380

To

pe

ac

fo

5

5

5

2

4

2

1

1

1

2

3

3

4

4

2

1

3

3

4

1

a Not included for computation of weighted averages.

b Represents 95 percent of runoff for water year October 1951 to September 1952.
GREEN RIVER BASIN 91

GREEN RIVER BASIN Continued 

PRICE RIVER AT WOODSIDE, UTAH Continued

Temperature (°F) of water, water year October 19S1 to September 19S2 

/Once-daily temperature measurement at approximately 1:00 p. m. 7

Day

1

2

3

4

5

6

7

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

Oct.

64

65

61

55

51

57

60

60

63

60

65

59

61

60

60

57

58

59

50

51

51

52

52

43

49

42

46

49

50

52

52

55

Nov.

44

40

44

45

43

45

46

47

45

45

41

43

42

41

34

34

32

33

33

39

42

41

35

38

32

34

37

38

40

Dec.

38

36

33

34

34

33

33

34

35

__

34

34

34

33

33

32

32

32

32

32

32

32

33

32

32

..

32

33

Jan.

32

32

31

31

_

31

31

31

31

32

32

32

32

32

31

32

32

~

31

31

32

32

33

33

32

32

_

32

32

Feb.

32

32

32

32

32

32

32

32

32

32

33

33

33

32

32

32

32

32

32

33

_

32

32

32

32

33

33

_

32

liar.

33

33

_

33

32

33

33

33

34

35

33

33

34

35

37

36

38

40

37

34

34

34

38

44

44

45

43

42

45

50

37

Apr.

49

49

51

52

53

53

56

54

53

53

55

56

58

59

57

59

60

61

61

61

60

58

59

57

58

60

55

51

53

56

May

54

55

59

57

59

60

59

58

58

56

66

60

63

60

56

51

55

57

61

61

56

56

59

63

63

63

63

63

63

63

64

59

June

63

63

62

65

64

71

69

70

70

70

68

66

_

70

69

70

69

65

69

70

71

70

69

68

68

65

65

67

64

68

July

71

77

75

79

78

80

81

79

79

80

75

77

76

75

73

79

_

85

84

86

81

82

85

84

84

85

85

_

86

89

84

80

Aug.

84

86

85

85

86

87

80

78

76

77

80

79

77

78

79

76

_

80

75

74

77

_

77

75

70

71

75

75

79

Sept.

75

78

75

76

75

._

_

70

71

70

63

_

77

73

67

..

69

72

72

71

70

71

74

72

72

70

71

72

70

74

72
GREEN RIVER BASIN--Continued

GREEN RIVER AT GREEN RIVER, UTAH

LOCATION. At gaging station, 1 mile southeast of the town of Green River, Emery County, 22 miles upstream 

from mouth.

DRAINAGE AREA. 40,600 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: August 1928 to September 1952.

Water temperatures: May 1949 to September 1952.

Sediment records: May 1930 to September 1952. 

EXTREMES, 1951-52.--Dissolved solids: Maximum, 936 ppm Dec. 11-20; minimum, 244 ppm June 11-20.

Hardness: Maximum, 464 ppm Dec. 11-20; minimum, 155 ppm June 11-20.

Specific conductance: Maximum daily, 1,500 micromhos Mar. 31; minimum daily, 347 micromhos June 17.

Water temperatures: Maximum observed, 80°F Aug. 1-3, 5; minimum observed, freezing point on several day

Sediment concentrations: Maximum daily, 15,300 ppm Apr. 10; minimum daily, 67 ppm Nov. 22.

Sediment loads: Maximum daily, 785,000 tons Apr. 10; minimum daily, 351 tons Nov. 22. 

EXTREMES, 1928-52. Dissolved solids: Maximum, 2,010 ppm Sept. 29, 1943; minimum, 194 ppm June 21-30, 193

Hardness: Maximum, 488 ppm Dec. 21-31, 1932; minimum. 128 ppm June 21-30, 1933.

Specific conductance: (1941-52): Maximum daily, 2,420 micromhos Sept. 29, 1943; minimum daily, 321 mic

Water temperatures (1949-52): Maximum observed, 82 F July 31, Aug. 5-6, 1949; minimum observed, freezin

Sediment concentrations (1930-52): Maximum daily, 63,600 ppm July 11, 1936; minimum daily, 34 ppm Sept. 

Sediment loads (1930-52): Maximum daily 2,230,000 tons July 11, 1936; minimum daily, less than 100 ton

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductan

at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in W

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

Oct. 1-10, 1951 ..

Jan. 1-10, 1952 . . 

Jan. 11-20.......

Feb. 21-29.......

Mean 

discharge 

(cfs)

3,095 

3,336 

3,800 

3,196 

2,697 

2,372

2,482 

1,582 

2,346 

1,865 

2,215 

2,591

2,595 

2,470 

2,408

Silica 

(810.)

9.5 

12 

12 

11 

12 

13

14 

15 

14 

13 

14 

13

13 

14 

14

Iron 

(Pe)

Calcium 

(Ca)

86 

80 

83 

86 

82 

86

88 

100 

88 

86 

92 

78

77 

79 

82

Magnesium 

(Mg)

36 

31 

34 

38 

38 

43

45 

52 

42 

41 

44 

38

39 

40 

41

Sodium 

(Na)

100 

109 

104 

102 

101 

113

112

127 

103 

100 

105 

90

94 

97 

100

Potassium 

(K)

5.0 

4.9 

4.2 

4.2 

4.0 

3.4

3.1 

4.1 

3.6 

3.1 

5.0 

3.6

3.1 

4.0 

4.0

Bicarbonate 

(HCO.)

222 

220 

228 

230 

234 

243

260 

294 

270 

260 

280 

246

243 

244 

252

Sulfate 

(S04)

325 

312 

318 

337 

310 

356

368 

405 

315 

313 

332 

282

297 

297 

304

Chloride 

(Cl)

42 

44 

40 

40 

40 

45

47 

49 

45 

41 

46 

38

38 

40 

43

Fluoride 

(F)

Nitrate 

(NO,)

1.8 

1.8 

1.5 

1.9 

1.0 

2.3

1.5 

2.1 

1.4 

2.0 

2.2 

2.1

2.0 

2.1 

2.1

Boron 

(B)

0.23

.22 

.23

Disso

(residu

Parts 

per 

million

747 

727 

730 

767 

732 

820

824 

936 

773 

758 

814 

682

698 

700 

116
Mar. 1-10, 1862 . M9_ O1 Q1

May 21-31 .. ...

Aug. 1-10........

Aug. 21-31 ......

Sept 11-20

Sept. 21-30......

Weighted average

2,391 2

QO1

11,300

oo Ann

37,770

417 7 on 4

QOO

2 091

2,470

9,427

13

13

16

14

1 9

14

11

14

82

90

79

61

54

58

58

67

87

64

41

29

25

20

17

15

22

29

oe

40

41

23

100

120

125

107

32

79

86

96

55

4.1 

4.3

5.2

6.2

4.9

3.2

3.5

3.5

4.8 4 Q

4.9

6.6

4.7

252 

244

9d4

232

229

216

244

268

234

214

308 

354

107

89

72

162

O/VT

OKQ

319

163

41 

42

12

7.0

13

21

9*7

36

017

45

21

1.8 

1.7

1.7

.7

1.5

.7

3

17

2.0

1.9

1.9

.23

.18_ _

..

722 

780

728

382

347

266

390

545

715

459
94 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER AT GREEN RIVER, UTAH Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/5nce-daily temperature measurement, generally during afternoon/

Day

1

2

3

4

5

6

7

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

Oct.

..

65

59

..

58

57

58

58

59

59

58

56

55

58

60

58

48

54

47

49

49

48

53

52

51

Nov.

43

43

42

47

45

45

43

43

42

43

41

41

41

40

35

34

34

34

35

37

39

36

36

36

36

~

40

Dec.

36

38

32

34

35

33

33

33

33

32

32

33

-.

34

33

33

33

32

31

34

33

33

34

34

34

34

34

33

Jan.

33

33

_

33

33

32

32

32

32

32

32

_

32

33

33

33

34

33

33

33

_

34

33

33

33

34

34

33

33

33

Feb.

33

33

34

33

33

34

34

34

33

34

36

35

38

37

37

__

34

34

36

38

36

37

36

38

38

38

35

Mar.

38

37

37

35

37

37

40

41

40

37

38

37

37

36

39

39

39

38

39

38

35

36

35

39

41

40

43

44

43

43

39

Apr.

43

38

38

37

39

39

42

42

40

43

42

48

47

50

48

47

51

52

55

53

56

54

_

57

58

55

59

59

57

--

48

May

58

59

60

62

62

63

_

57

59

_

_

64

64

_

62

_

57

58

56

58

63

61

61

62

61

63

61

63

64

June

63

65

_

62

64

64

65

69

69

_

70

71

70

_

70

_

71

70

..

70

70

71

69

66

68

65

_

67

July

_

70

71

72

72

74

75

74

72

75

74

_

_

74

75

76

73

73

74

74

._

74

79

_

--

74

74

78

78

77

~

Aug.

80

80

80

79

80

76

75

78

76

74

76

_

75

_

_

_

76

76

76

76

77

78

78

76

75

75

75

76

~

"

Sept.

68

70

_

73

73

72

_

_

70

70

70

68

68

63

67

68

65

69

64

__

65

_

70

71

69

68

69

69

_

«
GREEN RIVER BASIN 95

GREEN RIVER BASIN Continued

GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1951 to September 1952

Day

IS 

in

on

21

44

27

OO

OQ

30 

31 

Total2

10 -

is 

16 

18

19 

21 

22 . - 

23 ------ 

24 ------ 

25 

26 ------ 

27 

28 ...... 

29 ----- 

30 

31 

Total

October

Mean

discharge

(cfs)

2,400 

2,320 

2,020 

2,020 

2,220

3,080 

3,780 

4,730 

4,380 

4,000

3,890 

3,830 

3,630 

3,520 

3,320

3,250 

3,100 

3,000 

2,910 

2,910

2,910 

2,880 

2,880 

2,910 

2,960

3,810 

3,520 

5,160 

6,100 

4,700 

3,970

106,110

Suspended sediment

Mean 

concentration 

(ppm)

1,600 

6,100 

840 

306 

364

1,000 

1,560 

6,150 

6,250 

7,050

10,700 

7,650 

4,750 

2,700 

2,900

2,320 

1,670 

1,310 

931 

660

720 

T60 

526 

489 

610

4,400 

2,480 

3,920 

6,800 

8,280 

6,900

January

2,450 

2,250 

2,100 

2,000 

1,900

1,800 

1,600 

1,500 

1,450 

1,450

1,500 

1,600 

1,900 

2,100 

2,200

2,300 

2,400 

2,500 

2,600 

2,600

2,600 

2,600 

2,550 

2,550 

2,600 

2,650 

2,500 

2,400 

2,400 

2,350 

2,400

67,800

160 

230 

203 

190 

160

153 

151 

122 

100 

390

260 

150 

190 

164 

200

212 

287 

265 

242 

242

308 

258 

203 

200 

455 

362 

332 

204 

303 

230 

153

Tons 

per 

day

as 19, 000 

as 41, 000 

4,580 

1,670 

2,180

8,320 

15,900 

78,500 

73,900 

76, 100

112,000 

79,100 

46,600 

25,700 

26,000

20,400 

14,000 

10,600 

7,310 

5,190

5,660 

5,910 

4,090 

3,840 

4,880

45,300 

23,600 

s 58, 200 

112,000 

105,000 

74,000

1,110,530

1,060 

1,400 

1,150 

1,030 

821

744 

652 

494 

392 

1,530

1,130 

648 

975 

930 

1,190

1,320 

1,860 

1,790 

1,700 

1,700

2,160 

1,810 

1,400 

1,380 

3,190 

2,590 

2,240 

1,320 

1,960 

al.500 

991

43,057

November

Mean

charge 

(cfs)

3,700 

3,520 

3,450 

3,420 

3,300

3,120 

2,960 

2,930 

2,840 

2,720

2,700 

2,790 

2,860 

2,790 

2,810

2,860 

2,860 

2,650 

2,410 

2,240

2,040 

1,940 

2,140 

2,450 

2,700

2,500 

2,430 

2,480 

2,520 

2,520

82,650

Suspended sediment

Mean 

concentration 

(ppm)

3,320 

1,560 

800 

600 

511

1,370 

580 

345 

315 

390

390 

286 

308 

262 

251

234 

213 

214 

220 

180

109 

67 

119 

170 

200

210 

258 

200 

200 

200

..

Tons 

per 

day

33,200 

14,800 

7,450 

5,540 

4,550

11,500 

4,640 

2,730 

2,420 

2,860

2,840 

2,150 

2,380 

1,970 

1,900

1,810 

1,640 

1,530 

1,430 

1,090

600 

351 

688 

1,120 

1,460

,420 

,960 

,340 

,360 

,360

119,819

February

2,400 

2,400 

2,400 

2,450 

2,500

2,550 

2,550 

2,550 

2,550 

2,500

2,400 

2,400 

2,350 

2,350 

2,400

2,400 

2,500 

2,450 

2,450 

2,540

2,450 

2,410 

2,410 

2,480 

2,430 

2,450 

2,410 

2,330 

2,300

70,760

430 

338 

225 

300 

368

332 

454 

540 

675 

549

261 

264 

166 

126 

310

167 

227 

203 

265 

151

167 

123 

103 

85 

89 

100 

196 

101 

159

2,790 

2,190 

1,460 

a 2, 000 

2,480

2,290 

3,120 

3,720 

4,650 

3,710

1,690 

1,710 

1,050 

799 

2,010

1,080 

1,530 

1,340 

1,750 

1,040

1,100 

800 

670 

569 

584 

662 

1,280 

635 

987

49,696

December

Mean

charge 

(cfs)

2,520 

2,450 

2,540 

2,590 

2,610

2,720 

2,720 

2,680 

2,390 

1,510

1,090 

1,100 

1,180 

,380 

,520

,750 

,900 

,950 

,950 

2,000

2,050 

2,100 

2,150 

2,200 

2,300

2,350 

2,400 

2,500 

2,580 

2,600 

2,580

66,450

Suspended sediment

Mean 

concentration 

(PPm)

168 

139 

126 

169 

152

204 

175 

263 

338 

550

300 

280 

190 

205 

120

220 

211 

200 

304 

190

161 

180 

120 

250 

213

380 

1,010 

480 

297 

270 

380

Tons 

per 

day

1,140 

953 

864 

1,180 

1,070

1,500 

1,290 

1,900 

2,180 

2,240

883 

832 

605 

784 

492

1,040 

1,080 

1,050 

1,600 

1,030

891 

1,020 

697 

1,480 

1,320

2,410 

6,540 

3,240 

2,070 

1,900 

2,650

47,911

March

2,330 

2,330 

2,280 

2,390 

2,410

2,370 

2,390 

2,410 

2,500 

2,500

2,590 

2,590 

2,560 

2,560 

2,520

2,500 

2,560 

2,560 

2,630 

2,630

2,630 

2,720 

2,720 

2,610 

2,540 

2,480 

2,630 

2,770 

2,960 

3,320 

3,650

80,640

147 

167 

132 

97 

109

82 

137 

107 

138 

353

361 

250 

228 

164 

162

156 

194 

143 

242 

200

200 

174 

134 

233 

200 

200 

225 

880 

1,260 

1,880 

2,720

925 

1,050 

813 

626 

709 

525 

884 

696 

932 

2,380

2,520 

1,750 

1,580 

1,130 

1,100

1,050 

1,340 

988 

1,720 

1,420 

1,420 

1,280 

984 

1,640 

1,370 

1,340 

1,600 

6,580 

10,100 

16,900 

26,800

94,152

s Computed by subdividing day.

a Computed from estimated concentration graph.
96 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

4 ......

8 

g

16 

19

20 -

25

9ft

A0

30 ----- -

31 

TotalQ

16 

19

20 - 

21 ...... 

22 ----- 

2S 

24 

25 ----- 

26 ----- 

27 ----- 

28 ----- 

29 ----- 

30 . 

31 ......

Total

April

Mean

charge

(cfs)

4,190 

5,520 

8,000 

11,100 

13,800

11,700 

12,300 

11,600 

15,800 

19,000

17,300 

15,800 

15,200 

14,300 

13,200

13,200 

15,300 

17,800 

16,400 

14,900

17,000 

20,400 

22,500 

24,200 

23,500

21,300 

21,600 

24,100 

27,400 

29,500

497,910

17,600 

16,700 

15,400 

14,000 

12,700 

11,700 

11,000 

10,600 

10,000 

9,280

8,840 

8,410 

8,000 

7,680 

7,410 

7,530 

7,300 

7,180 

7,260 

6,810

6,300 

5,920 

5,450 

,970 

,700

,500 

,380 

,440 

,530 

,350 

,380

259,320

Suspended sediment

Mean 

concentration 

(ppm)

2,900 

2,990 

5,950 

7,400 

7,600

4,800 

7,300 

8,480 

11,700 

15,300

13,200 

12,800 

9,980 

10,600 

9,830

6,700 

6,000 

8,000 

7,720 

7,900

7,600 

8,300 

8,600 

6,420 

8,860

4,870 

5,590 

6,020 

10,500 

9,400

July

2,200 

1,210 

876 

810 

1,990

1,320 

.856 

900 

1,330 

1,050

640 

670 

660 

617 

780 

600 

419 

402 

467 

323 

580 

638 

617 

1,150 

907

490 

280 

750 

1,520 

680 

498

--

Total discharge for year (cfsTotal load for year (tons). . . .

Tons 

per 

day

32,800 

44,600 

129,000 

222,000 

283,000

152,000 

242,000 

266,000 

s 509, 000 

785,000

617,000 

546,000 

410,000 

409,000 

350,000

239,000 

248,000 

384,000 

342, 000 

318,000

349,000 

457,000 

522,000 

419,000 

562,000

280,000 

326,000 

392, 000 

777,000 

749,000

11,361,400

105,000 

54,600 

36,400 

30,600 

68,200

41,700 

25,400 

25,800 

35,900 

26,300

15,300 

15,200 

a 14, 000 

12,800 

15,600 

12,200 

8,260 

7,790 

9,150 

5,940 

9,870 

10,200 

9,080 

15,400 

11,500

5,950 

3,310 

8,990 

18,600 

7,990 

5,890

672,920

May

Mean

charge

(els)

31,300 

33,400 

34,400 

34,600 

36,300

38,200 

39,900 

41,600 

43,100 

49,900

45,200 

42,700 

39,300 

35,300 

33,400

34,600 

36,300 

37,000 

37,400 

36,000

31,700 

29,300 

29,000 

28,400 

27,500

25,700 

24,700 

24,300 

24,400 

25,500 

26,600

1,052,000

Suspended sediment

Mean 

concentration 

(ppm)

7,550 

7,410 

7,000 

5,900 

5,800

4,420 

5,270 

5,410 

4,800 

4,000

3,480 

3,400 

4,220 

3,490 

3,340

4,370 

4,180 

3,990 

3,900 

3,690

4,010 

3,980 

3,340 

3,650 

2,860 

3,300 

2,790 

2,620 

2,470 

2,200 

3,150

Tons 

per 

day

638,000 

668,000 

650, 000 

551,000 

568,000

456,000 

568,000 

608,000 

559,000 

485,000

425,000 

a 390, 000 

448,000 

333,000 

301,000

408,000 

410,000 

399,000 

394,000 

359,000

343,000 

315,000 

262,000 

280, 000 

212,000

229,000 

186,000 

172,000 

163,000 

151,000 

226,000

12,157,000

August

4,610 

4,880 

4,910 

4,970 

4,820

4,730 

4,580 

4,500 

4,760 

4,820

5,220 

6,340 

7,640 

6,380 

5,820 

5,680 

5,750 

5,290 

4,880 

4,580

4,350 

4,530 

4,560 

4,210 

4,020

4,190 

4,470 

4,670 

6,740 

6,380 

5,580

158,860

750 

1,140 

2,050 

2,200 

2,120

3,150 

1,900 

1,300 

1,600 

1,980

2,380 

3,060 

4,580 

9,900 

7,900 

3,400 

1,850 

2,080 

3,130 

3,160

1,880 

2,980 

3,080 

2,200 

2,790 

2,200 

6,840 

5,680 

7,430 

10,800 

14,000

..

9,340 

15,000 

27,200 

29,500 

27,600

40,200 

23,500 

15,800 

20,600 

25,800

33,500 

52,400 

94,500 

171,000 

al20, 000 

a52,000 

28,700 

29,700 

41,200 

39, 100

22,100 

36,400 

37,900 

25,000 

30,300

24,900 

82,600 

71,600 

135,000 

186,000 

a210,000

1,758,440

June

Mean

charge

(cfs)

28,200 

29,800 

31,300 

33,500 

34,400

36,000 

37,700 

40, 100 

42,900 

43,800

43,900 

44,100 

43,600 

42,200 

40,400

37,800 

34,500 

30,800 

28,500 

25,800

22,500 

20,500 

19,100 

18,000 

17,000

16,900 

16,600 

16, 900 

17,500 

17,600

911,900

Suspended sediment

Mean 

concentration 

(ppm)

2,520 

2,700 

2,570 

3,000 

2,200

1,880 

2,160 

2,270 1,870- 

1,620

1,000 

752 

1,200 

900 

1,400

2,150 

2,030 

2,120 

2,000 

1,430

1,820 

2,180 

2,000 

1,100 

800

800 

1,500 

2,020 

1,800 

1,760

Tons 

per 

day

192,000 

217,000 

217,000 

271,000 

204,000

183,000 

220,000 

246,000 

217,000 

192,000

119,000 

89,500 

141,000 

103,000 

153,000

219,000 

189,000 

176,000 

154,000 

99,600

111,000 

121,000 

103,000 

53,500 

36,700

36,500 

67,200 

92,200 

a 85, 000 

83,600

4,391,800

September

5,420 

4,580 

4,160 

3,910 

3,760

3,650 

3,500 

3,380 

.3, 280 

3,320

3,350 

3,220 

3,030 

2,930 

2,880 

2,860 

2,840 

2,740 

2,680 

2,680

2,700 

2,630 

2,590 

2,520 

2,480

2,430 

2,390 

2,350 

2,330 

2,280

92,870

12,200 

9,000 

7,900 

4,320 

1,520

1,140 

700 

656 

1,010 

960

1,070 

1,480 

1,050 

1,280 

905 

530 

428 

480 

350 

252

240 

440 

420 

229 

185

132 

124 

128 

91 

109

._

4ays) .........................................................

............................................................... 3

179,000 

111,000 

88,700 

45,600 

15,400

11,200 

a 6, 600 

5,990 

8,940 

8,610

9,680 

12,900 

8,590 

10, 100 

7,040 

4,090 

3,280 

3,550 

2,530 

1,820 

a 1,700 

3,120 

a 2, 900 

1,560 

1,240

866 

800 

812 

572 

671

558,861

3,447,270 

2,365,586

s Computed by subdividing day.

a Computed from estimated concentration graph.
GREEN RIVER BASIN Continued 

GREEN RIVER AT GREEN RIVER, UTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 8, si

W, in distilled water; C, chemically dispersed; M, mechanically dis

Date 

of 

collection

Oct. 3, 1951 ....

Nov. 16 ........

r*Af* 9A

Jan. 24, 1952 ..

Mar 9ft

Apr. 9 .... 

June 26 ........

Time

4:15 p. m. 

8:30 a. m. 

9:35 a. m. 

9:35 a. m. 

3:20 p. m. 

3:45 p. m.

9:05 a. m. 

3:45 p.m. 

2:15 p.m. 

4:15 p.m. 

1:30 p. m. 

5:00 p. m.

9:40 a. m. 

4:35 p.m. 

1:05 p.m. 

4:00 p. m. 

2:30 p. m. 

12:30 p. m.

5:30 p.m. 

5:30 p. m. 

9:50 a. m. 

4:30 p.m. 

12:20 p. m. 

5:30 p. m. 

4:50 p.m.

1:30 p.m. 

1:40 p.m. 

6:30 p.m. 

2:30 D. m.

Water 

discharge 

(cfs)

2,060 

2,960 

4,760 

4,760 

4,270 

4,470

2,840 

2,520 

2,960 

2,550 

2,500 

2,300

2,560 

2,650 

3,780 

10,400 

17,200 

14,700

30, 300 

30,300 

41,200 

38,500 

37,500 

28, 800 

26,900

37,700 

43,300 

18,600 

16.900

Water 

temperature 

CF)

Suspended sedimen

Concentration 

of sample 

(ppm)

1,100 

1,030 

6,000 

6,000 

5,660 

7,700

211 

215 

345 

163 

387 

102

388 

310 

2,640

6,630 

12, 500 

7,870

8,140 

8,140 

5,400 

5,380 

3,350 

2,460 

3,080

2,430 

1,840 

1,990 

732

Concentration 

of suspension 

analyzed 

(ppm)

2,720 

6,100 

3,600 

3,640 

3,270 

2,730

458

4,280 

5,880 

5,780 

4,960

3,480 

3,660 

4,640 

4,180 

2,970 

3,060 

4,440

4,380

Percent finer than 

0.002

59 

53

54

0.004

75 

83 

73 

68 

74 

72

67

44 

38 

46 

44

33 

11 

30 

17 

22 

35 

17

24

0.008

83 

79

79

0.016

93 

95 

88 

87 

93 

95

88

66 

57 

67 

66

48 

47 

45 

26 

36 

46 

29

35

0.031

89 

91

92
GREEN RIVER BASIN Continued 

GREEN RIVER AT GREEN RIVER, DTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to Septembe

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, sie

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

July 14, 1 952 ....

Aug. 21 .........

Aug. 27 .........

Sept. 8 .........

Sept. 24 ........

Time

5:00 p. m. 

4:35 p.m. 

4:35 p.m. 

4:35 p. m. 

4:35 p.m. 

10:15 a. m.

1:00 p. m. 

3:30 p.m. 

4:30 p. m. 

9:10 a.m. 

3:45 p. m. 

10:00 a. m. 

2:00 p. m.

Water 

discharge 

(cfs)

7,610 

4,730 

4,730 

4,730 

4,730 

5,000

4,970 

4,240 

4,330 

4,640 

3,400 

2,930 

2,520

Water 

temperature 

CF)

Suspended sediment

Concentration 

of sample 

(ppm)

639 

1,540 

1,540 

1,540 

1,540 

2,310

2,380 

1,660 

10,400 

9,580 

665 

897 

286

Concentration 

of suspension 

analyzed 

(ppm)

2,600 

2,410 

1,450 

1,880 

3,860

3,170 

4,680 

4,620 

5,280 

1,300 

2,580 

1,500

Percent finer than 

0.002

22 

2

49

0.004

54 

17 

45 

9 

72

73 

74 

49 

69 

61 

72 

72

0.008

62 

48

78

0.016

79 

75 

74 

81 

92

97 

92 

84 

98 

87 

91 

87

0.031

83 

82

92
GREEN RIVER BASIN- -Continued 

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH

LOCATION. At gaging station 15 feet upstream from bridge on State Highway 24, 15 miles southwest of Green 

from mouth .

DRAINAGE AREA. 1,690 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: November 1946 to September 1949, November 1950 to September 1952.

Water temperatures: July to September 1949, October 1950 to September 1952.

Sediment records: March 1948 to September 1949, October 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 4,440 ppm Dec. 11-20; minimum 541 ppm June 11-20.

Hardness: Maximum, 1,910 ppm Dec. 11-20; minimum, 330 ppm June 11-20.

Specific conductance: Maximum daily, 5 510 micromhos Dec. 15; minimum daily, 756 micromhos June 14.

Water temperatures: Maximum observed, 89 °F July 23; minimum observed, freezing point on many days from 

Sediment concentrations: Maximum daily, 67,300 ppm Oct. 27; minimum daily, 111 ppm Dec. 8.

Sediment loads: Maximum daily, 236,000 tons Oct. 27; minimum daily, not determined. 

EXTREMES, 1948-49, 1950-52. Dissolved solids: Maximum, 5,010 ppm May 1-10, 1951; minimum, 541 ppm June 1

Hardness: Maximum, 2,000 ppm May 1-10, 1951; minimum, 330 ppm June 11-20, 1952.

Specific conductance: Maximum daily, 6,120 micromhos May 13, 1951; minimum daily, 756 micromhos June 14

Water temperatures (1949, 1950-52): Maximum observed, 90°F July 19, 1951; minimum observed, freezing po

Maximum daily 115,000 ppm Aug. 4, 1951; minimum daily, 0 ppm (no fl

ug. 4, 1951; minimum daily, 0 ppm (no fl

Maximum daily, 786,000 tons Aug. 4, 1951; minimum daily, 0 ton Sept. 5 to Oc

Sediment concentrations (1948-52): 

Sediment loads ( 1948-52):

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific co

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 give

Chemical analyses, In parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-2, 5-10,1951.

Oct. 21-26, 30-31...

Nov. 23, 26-30 .....

Jan. 9, 12-15,19 .... 

Jan. 21-22, 25,29,31.

Feb. 21-23, 25-27 . .

Mean 

discharge 

(eta)

27.2 

30.0 

21.1 

79.2 

574 

64.8 

55.0 

70.7

52.5 

40.0 

49.5 

47.5 

38.8 

39.2 

54.2

82.3 

108 

76.2

Silica 

(S10.)

9.7 

9.7 

7.4 

9.7 

11 

12 

12 

11

13 

14 

12 

12 

13 

12 

11

10 

9.9 

11

Iron 

(Fe)

0.12

.02 

.03

.06 

.03 

.04

.05 

.04 

.04 

.08 

.12 

.06 

.04

.06 

.07 

.04

Calcium 

(Ca)

372 

320 

324 

314 

314 

300 

282 

271

256 

352 

286 

254 

324 

260 

228

208 

222 

228

Magnesium 

(Mg)

223 

100 

248 

221 

89 

195 

196 

191

193 

252 

191 

159 

230 

156 

146

137 

147 

145

Sodium 

(Na)

641 

2 

711 

660 

3 

565 

539 

545

577 

703 

509 

429 

724 

394 

406

389 

422 

379

Potassium 

(K)

16 

96 

15 

15 

34 

13 

12 

8.8

10 

13 

10 

7.1 

9.2 

7.0 

7.1

6.5 

7.2 

6.7

Bicarbonate 

(HCO,)

267 

180 

289 

282 

196 

300 

336 

350

352 

502 

462 

405 

491 

448 

402

358 

370 

368

Carbonate 

(CO,)

Sulfate 

(S0«)

2,820 

1,400 

2,880 

2,670 

1,600 

2,330 

2,230 

2,170

2,170 

2,780 

2,030 

1,790 

2,680 

1,680 

1,600

1,520 

1,620 

1,560

Chlorids 

(Cl)

74 

35 

81 

71 

35 

62 

62 

57

59 

78 

56 

51 

75 

49 

44

43 

45

47

Fluoride 

(F)

0.4

.4 

.5

.4 

.4 

.2

.2 

.2 

.1 

.2 

.3 

.4 

.4

.4 

.4 

.5

Nitrate 

(NO,)

2.0 

2.5 

1.7 

2.7 

1.0 

3.9 

3.9 

3.9

4.9 

4.7 

4.0 

4.1 

5.0 

3.5 

2.3

3.4 

2.9 

4.1

Boron 

(B)

0.51 

.41 

.47 

.24 

.20

P

4

4

4
GREEN RIVER BASIN Continued

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Continued 

Chemical analyses, in parts per million, water year October 1951 to September 195

Date of collection

Mar. 1-10, 1952...

Mar. 27-31.. .

Apr. 1-10.........

Apr. 11-12, 16-22 .

May 1-2, 4,6, 8-9.. 

May 11-20

June 1-3, 5-10.....

June 21, 23, 28-30..

Aug. 11-13, 16-18 . 

Aug. 21-27, 2a.... 

Aug. 28, 30-31 ....

Sept. 22-30 .......

Weighted average .

Mean 

discharge 

(cfs)

97.6 

135 

110 

759

384 

242 

186 

598 

1,302 

1,588 

1,595

3,144 

3,950 

2,153 

1,044 

577 

254 

139

129 

383 

80.2 

248 

542 

81.2 

108 

68.2 

76.3

b430

Silica 

(SiO,)

9.1 

8.7 

9.2 

10

7.9 

10

10 

10 

8.5 

8.2

7.3

8.1 

8.9 

9.2 

11 

12

12

13 

12 

16 

13 

13 

12 

11

8.9

Iron 

(Fe)

0.05 

.05 

.05 

.05

.04 

.13

.04 

.17 

.07 

.05

.05

.13 

.05 

.11 

.09 

.07

.06

.07 

.06

.11

.09 

.09

0.08

Calcium 

(Ca)

222 

232 

220 

232

220 

163

93 

79 

80 

74

83

76 

90 

100 

138 

200

212 

182 

322 

274 

139 

244 

166 

223 

237

116

Magnesium 

(Mg)

146 

158 

154 

76

125 

120

59 

48 

41 

36

38

34 

49 

,59 

100 

146

126 

45 

177 

168 

43 

165 

91 

163 

165

62

Sodium 

(Na)

384 

522 

420 

263

399 

360

141 

83 

69 

64

63

55 

94 

125 

229 

392

318 

6 

403 

441 

4! 

447 

2C 

456 

526

149

Potassium 

(K)

7.3 

7.3 

7.0 

6.8

7.9 

6.1

3.9 

3.9 

3.2 

2.8

3.2

2.8 

3.8 

4.2 

6.1 

7.9

9.0 

5 

17 

13 

1 

9.8 

9 

9.2 

10

4.4

Bicarbonate 

(HCO,)

350 

344 

352 

200

246 

290 

294 

262 

247 

251 

240

225

237 

260 

260 

268 

269

241 

214 

245 

261 

260 

262 

358 

271 

265

250

Carbonate 

(CO,)

Sulfate 

(SO,)

1,580 

1,960 

1,670 

1,230

1,590 

1,310 

1,910 

514 

331 

282 

244

278 

818 

235 

389 

519 

945 

1,600

1,440 

568 

2,040 

2,010 

1,160 

1,910 

868 

1,860 

2,070

612

Chloride 

(CD

44 

56 

54 

37

51 

50 

65 

23 

14 

10 

10

9.0 

22 

12

17 

19 

27 

45

39 

9 

52 

53 

29 

52 

32 

52 

56

20

Fluoride 

(F)

0.5 

.1 

.4 

.4

.5 

.4

.4 

.3 

.4 

.2

.2

.2 

.1 

.2 

.3 

.3

.3

.3 

.3

.3

.4 

.3

0.3

Nitrate 

(NO,)

3.9 

4.2 

4.1 

2.6

3.9 

3.0

2.8 

1.8 

1.7 

1.7

1.0

.9 

1.6 

2.0 

1.6 

2.1

2.9 

.7 

.9 

1.9 

.6 

3.2 

.7 

3.0 

1.8

1.7

Boron 

(B)

0.21 

.21

.09

.23 

.37 

.36

P

2

3

2

2

2

3

3

a Not included for computation of weighted averages.

b Represents 88 percent of runoff for water year October 1951 to September 1952.
GREEN RIVER BASIN 101

GREEN RIVER BASIN Continued

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Continued 

Temperatiare (*F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

68

66

60

56

58

58

62

57

59

~

64

63

63

62

60

59

56

62

54

61

46

55

51

52

60

47

52

43

52

52

57

Nov.

44

39

40

40

45

47

47

46

46

47

49

42

39

36

34

35

36

..

37

36

38

39

37

38

--

Dec.

39

41

37

37

36

33

33

32

33

32

32

32

32

32

32

32

32

22

33

..

32

32

32

--

32

32

33

32

32

33

Jan.

32

32

32

32

32

32

32

32

32

_

32

32

32

32

_

32

32

32

32

~

..

33

32

Feb.

33

34

33

33

34

33

35

~

37

38

36

43

~

_

38

37

36

38

40

40

40

38

43

_

~

Mar.

_

42

44

43

43

44

44

44

_

38

i.-

45

43

44

45

43

44

44

_

33

36

42

48

..

44

43

42

_

45

Apr.

46

48

53

56

56

50

56

48

50

50

49

45

55

57

61

56

67

63

54

62

54

65

55

65

70

59

55

_

56

May

57

56

_

56

55

56

58

~

_

64

64

62

56

51

_

60

55

51

57

64

64

57

57

_

61

56

June

_

61

58

62

65

65

65

63

64

65

59

65

65

64

62

67

61

66

67

72

_

66

 -

_

69

72

72

July

72

68

._

71

70

71

79

79

79

79

75

80

80

82

83

85

84

--

83

88

89

86

87

76

_

74

74

84

79

Aug.

83

84

75

81

85

80

77

79

75

75

85

74

77

_

84

77

81

_

-

74

72

80

83

79

78

80

69

72

76

73

78

Sept

_

76

77

80

77

75

77

77

73

_

,_

_

--

,_

77

74

62

72

71

72

._

72

72

72

73

72
102 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

SAN RAFAEL RIVER NEAR GREEN RIVER UTAH Continued 

Suspended sediment, water year October 1951 to September 1952

Day

2 

3 

5 

8 

12 

13 

Ifi

17 

is

19 

on

99

23 

29 

31 

Total9

11 

15 

17 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

October

Mean

charge 

(cfs)

32 

59 

36 

24 

21

19 

21 

22 

22 

22

21 

21 

20 

19 

20

20 

21 

22 

23 

24

25 

26 

26 

26 

28

322 

1,150 

385 

188 

100 

81

2,846

Suspended sediment

Mean 

concentration

630 

2,940 

2,420 

1,050 

570

445 

400 

539 

584 

500

357 

313 

341 

300 

549

484 

395 

424 

476 

408

470 

565 

420 

423 

453

36,000 

67,300 

19,900 

10,100 

4,300 

2,390

Tons 

per 

day

54 

scSlO 

235 

68 

32

23 

23 

32

35 

a30

20 

18 

18 

al5 

30

26 

22 

25 

30 

26

32 

40 

29 

30 

34

sa47,000 

sc236,000 

20,700 

5,130 

1,160 

523

311,950

January

50 

50 

45 

1 45

40 

35

45

50

f 55

57 

60 

63 

66

1.426

253 

310 

354 

268 

320 

222 

236 

360 

492

49Q 

457 

451 

286 

321

2,180

510 

390

210 

200

226 

200

580 

740 

440 

280 

300 

370

34 

42 

43 

33

:

93 

31

a68 

45 

a 51 

66

1,795

November

Mean

charge

(cfs)

74 

76 

71 

64 

62

65 

64 

58 

55 

59

65 

62 

59 

64 

71

64 

59 

41 

30 

35

45 

58 

74 

78

70

1,873

Suspended sediment

Mean 

concentration 

(ppm)

2,280 

1,120 

815 

700 

600 

619 

894 

741 

752 

856

994 

963 

1,020 

1,030 

709

949 

600 

452 

491 

595

1,000 

1,100 

1,340 

1,800

580 

360 

1,590 

900 

730

Tons 

per 

day

456 

230 

156 

a 120 

a 100

109 

154 

116 

112 

136

174 

161 

162 

178 

136

164 

a 96 

50 

40 

56

a 120 

a 170 

268 

a 380

170

4,864

February

70 

71 

73 

74 

76 

80 

85 

92 

98 

104

102 

108 

112 

117 

122

117 

108 

100 

98 

96 

92 

76 

78 

72 

72

71 

68 

61 

69

2.562

336 

418 

900 

1,220 

1,180 

780 

1,070 

930 

1,100 

1,800 

2,290 

1,100 

610 

700 

840

1,500 

1,900 

1,790 

1,160 

1,070 

930 

1,000 

1,020 

1,000 

1,030 

1,130 

900 

630 

596

64 

80 

177 

244 

242 

168 

246 

a 230 

a 290 

a 510

631 

321 

184 

221 

a 280

a 470 

a 550 

483 

307 

277 

231 

205 

215 

a 190 

200 

217 

165 

a 100 

111

7.609

December

Mean

charge 

(cfs)

70

60 

60

50 

40

35

40 

45

50

1,470

Suspended sediment

Mean 

concentration 

(ppm)

620

690 

1,010 

1,080

1,020 

700 

111 

173 

189

205 

144 

210 

286 

262

310 

191

220

4G3 

429 

497

420 

195 

351 

186 

211

Tons 

per 

day

f 120

164 

175

138 

76

16

28 

27

46

1.689

March

74 

86 

85 

86 

92 

88 

102 

110 

117 

136

232 

217 

159 

138 

136

117 

115 

117 

112 

106 

124 

119 

104 

98 

104 

139 

398 

537 

712 

1,080 

1,070

6.910

630 

660 

850 

1,880 

1,110 

1,200 

1,110 

1,300 

1,500 

3,200

4,700 

4,200 

2,250 

1,830 

2,140

2,160 

2,200 

1,920 

1,800 

1,620 

1,630 

1,500 

1,320 

1,160 

1,210

1,400 

13,000 

19,800 

26,600 

29,000 

22,100

alSO 

alSO 

195 

437 

276 

285 

306 

386 

a 470 

si, 200

a 2, 900 

c 2, 500 

966 

682 

786

682 

683 

607 

544 

464 

546 

482 

371 

307 

340

a 530 

c 14, 000 

28,700 

51,100 

90,000 

s 66, 300

267,325

s Computed by subdividing day.

a Computed from estimated concentration graph.

c Computed from partially estimated concentration graph.
GREEN RIVER BASIN 103

GREEN RIVER BASIN Continued

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Continued 

Suspended sediment, water year October 1951 to September 1952--Continued

Day

g

12 ....

14 

18

19 .... 

20 ------

no

29

31 

Total12 

13 

1ft

1920 

21 

22 

23 

24 ------ 

25 

26 

27 

28 ----- 

29 

30 

31 

Total

April

Mean

charge

(cfs)

970 

507 

364 

301 

294

268 

294 

298 

301 

248

235 

245 

207 

179 

194

185 

176 

204 

216 

268

298 

353 

411 

449 

484

555 

741 

a 940 

1,130 

835

12, 159

Suspended sediment

Mean 

concentration 

(PP"»)

19,200 

10,000 

7,800 

6,250 

4,200

4,250 

6,600 

7,250 

6,800 

4,950 

4,250 

3,950 

3,600 

3,300 

2,950

2,750 

3,300 

3,450 

4,250 

5,900

5,900 

7,550 

8,100 

9,550 

10,100

12,500 

16, 700 

17,000 

18,000 

13,000

July

743 

680 

637 

618 

576

548 

534 

520 

497 

420

410 

375 

337 

300 

273

218 

188 

156 

143 

138

138 

109 

98 

92 

83 

83 

95 

109 

233 

281 

208

9,840

2,650 

2,800 

2,000 

1,800 

2,550

1,200 

1,400 

2,170 

1,600 

850

560 

600 

685 

950 

700

520 

340 

220 

240 

240

320 

240 

245 

250 

235

160 

150 

200 

1,090 

23,500 

15,300

_

Total discharge for year (cfsTotal load for year (tons)

Tons 

per 

day

50,300 

13,700 

7,670 

5,080 

3,330

3,080 

5,240 

5,830 

5,530 

3,310

2,700 

2,610 

a 2, 000 

1,590 

1,550

1,370 

1,570 

1,900 

2,480 

4,270

4,750 

7,200 

8,990 

11,600 

13,200

18,700 

33,400 

43,600 

a 55, 000 

a 29, 000

350,550

5,320 

5,140 

3,440 

a 3, 000 

3,970

1,780 

2,020 

3,050 

2,150 

964

620 

608 

623 

770 

516

306 

173 

93 

93 

a 89

119 

71 

65 

a 62 

62

36 

38 

a 59 

s763 

17,800 

8,590

62.380

May

Mean

discharge

(cfs)

826 

915 

1,080 

1,290 

1,350

1,480 

1,650 

1,780 

1,520 

1,370 

,190 

,350 

,590 

,910 

,300

,280 

,680 

,300 

,140 

,140

,390 

,660 

,250 

1,050 

1,040

1,220 

1,530 

1,880 

1,990 

2,220 

2,310

46,681

Suspended sediment

Mean 

concentration 

(ppm)

10,600 

11,500 

14,000 

14,100 

15,000

17,900 

20,000 

20,300 

14,900 

14,000

10,000 

11,000 

15,600 

12,000 

14,300

8,430 

7,180 

6,800 

8,100 

7,250

10,100 

8,700 

4,500 

4,700 

6,400

5,800 

7,000 

7,100 

11,000 

11,600 

10,100

-- 

Tons 

per 

day

23,600 

28,400 

a 41, 000 

49,100 

a 55, 000

71,500 

a 89, 000 

97,600 

61,100 

a 52, 000

a 32, 000 

40,100 

67,000 

61,900 

88,800

51,900 

32,600 

23,900 

24,900 

22,300

37,900 

39,000 

a 15, 000 

a 13, 000 

18,000

19,100 

28,900 

36,000 

a 59, 000 

69,500 

63,000

1,412,100

August

208 

182 

148 

112 

92

86 

79 

93 

383 

156

88 

78 

83 

73 

143

100 

71 

61 

55 

54

56 

77 

110 

70 

64

58 

696 

937 

851 

445 

243

5,954

5,000 

7,150 

2,950 

2,300 

1,000

776 

750 

2,130 

16,900 

12,000

3,000 

1,750 

1,700 

1,000 

1,500

24,000 

22,400 

6,100 

1,100 

800

945 

2,900 

4,500 

4,450 

3,950

1,750

_

2,810 

3,510 

1,180 

696 

248

180 

a 160 

si, 030 

sc!9,800 

sc6,010

c710 

369 

381 

a 200 

a 580

c6,500 

4,290 

1,000 

163 

a 120

143 

s711 

1,340 

841 

683 

274

1 b 62,000

363.929

June

Mean

charge

(cfs)

2,500 

2,190 

2,190 

3,950 

3,730

3,740 

3,740 

3,560 

3,400 

3,250 

2,960 

2,850 

2,670 

2,400 

2,230

2,000 

1,760 

1,630 

1,550 

1,480

1,400 

1,230 

1,160 

1,040 

1,080

1,080 

1,100 

1,020 

852 

788

64,510

Suspended sediment

Mean 

concentration 

(PP«n)

14,000 

12,000 

11,500 

16,600 

15,400

14,000 

13,800 

18,400 

18,400 

12,600 

12,000 

15,600 

19,900 

5,150 

4,450

8,300 

3,150 

6,050 

2,450 

3,100

3,950 

3,400 

3,200 

3,000 

3,000

3,000 

3,300 

4,000 

2,050 

2,600

Tons 

per 

day

a 95, 000 

71,000 

68,000 

177,-OOQ 

155,000

a 140, 000 

139,000 

177,000 

169,000 

111,000

95,900 

120,000 

143,000 

33,400 

26,800

44,800 

38,700 

26,600 

10,300 

12,400

14,900 

all, 000 

10,000 

a 8, 400 

a 8, 600

a 8, 700 

a 9, 800 

11,000 

4,720 

5,530

1,946,550

September

120 

90 

80 

76 

70

63 

56 

54 

60 

182

108 

82 

75 

76 

65

58 

57 

56 

55 

90

190 

130 

95 

80 

73

67 

63 

61 

60 

58

2,450

1,840 

1,660 

1,160 

925

694 

593 

594 

582 

5,000

27,600 

13,600 

4,600 

1,800 

1,400

650 

549 

461 

480 

1,050

8,600 

12,300 

7,500 

2,400

742 

209 

331 

237 

210

_

b 1,000 

447 

359 

238 

175

118 

90 

87 

94 

2,500

8,050 

3,010 

932 

369 

246

102 

84 

70 

71 

255

b2,000 

3,020 

3,150 

1,620 

a470

134 

36 

55 

38 

33

28.853

.................................................................. 4,759,594

s Computed by subdividing day.

a Computed from estimated concentration graph.

b Computed from water sediment discharge curves.

c Computed from partially estimated concentration graph.
GREEN RIVER BASIN--Continued 

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to Sept

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, siev

W, in distilled water; C, chemically dispersed; M, mechanically dispe

Date 

of 

collection

Nov. 1, 1961 ... 

Nov. 9 .........

Nov. 20 ........

Feb. 6, 1952 ... 

Mar. 6.........

Mar. 25........

Apr. 9 .........

Tulv 91

July 26 .........

Time

10:40 a. m. 

2:40 p. m. 

10:20 a. m. 

2:00 p. m. 

10:15 a. m. 

10:45 a. m.

11:30 a. m. 

2:35 p. m. 

3:45 p. m. 

4:10 p.m. 

9:15 a. m. 

10:15 a.m. 

9:30 a. m.

10:00 a. m. 

10:00 a.m. 

10:00 a. m. 

5:00 p. m. 

3:00 p.m.

3:00 p.m. 

3:15 p.m. 

3:30 p.m. 

6:30 p. m. 

11:00 a.m.

10:00 a. m. 

10:00 a. m. 

2:35 p. m. 

2:50 D. m.

Water 

discharge 

(cfs)

76 

56 

35 

40 

50 

80

106 

188 

122 

115 

1,650 

322 

353

722 

722 

722 

1,740 

1,100

2,070 

3,360 

1,970 

1,170 

729

566 

269 

134 

86

Water 

temperature 

(*F)

Suspended sediment

Concentration 

of sample 

(ppm)

2,170 

747 

614 

512 

351 

671

1,530 

4,250 

2,070 

1,640 

26,100 

6,250 

7,770

9,310 

9,310 

9,310 

16, 800 

8,620

11,500 

19,400 

8,230 

3,370 

2,540

1,530 

1,100 

329 

226

Concentration 

of suspension 

analysed 

(ppm)

3,570 

1,160 

900 

899 

2,330 

4,950

2,400 

3,950 

1,490 

3,310 

4,160 

5,240 

4,810

5,160 

5,390 

3,460 

3,750 

4,250

3,640 

3,670 

4,680

Percent finer than i

0.002

45 

24 

32 

48

22

0 

21

0.004

53 

37 

41 

51 

48 

32

24

47 

28 

48 

21 

46 

31

28 

4 

29 

22 

14

14 

20 

18

0.008

65 

47 

50 

62

34 

10 

34

0.016

66 

55 

57 

67 

67 

53

37 

60 

37 

58 

33 

61 

53

42 

40 

40 

32 

23

25 

32 

29

0.031

69 

61 

65 

75

51 

50 

51
Aug. 12, 1952...

Sept 9

Sept. 17........

Sept. 26........

3:55 p.m.

10:20 a. m.

78 

56

57

70

1,900 

1,110

1,660

480

528

941

4,040 

3,040

1,970

1,250

5,290

--

49

37

46

95 

49

62

51

51

62

"

72

62

63

88 

81

79

68

71

80

"

89

77

76
GREEN RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN GREEN RIVER BASIN IN 

Chemical analyses, in parts per million, October 1951

Date of collection

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

P

DUCHESNE RIVER NEAR RANDLETT

Oct. 1-10, 1951..... 

Oct. 11-20. .........

Oct. 21-26, 29-31... 

Oct. 27-28..........

285

470 

1,230

15 
DIRTY DEVIL RIVER BASIN 

DIRTY DEVIL RIVER NEAR BITE; UTAH

LOCATION.--Samples collected near the mouth, above backwater of the Colorado River, about 9 miles upstrea

from gaging station. 

RECORDS AVAILABLE.--Chemical analyses: October 1947 to September 1952.

Water temperatures: May 1949 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 5,080 ppm July 21-29; minimum, 851 ppm Aug. 6-7.

Hardness: Maximum, 2,110 ppm July 21-29; minimum, 435 ppm Aug. 6-7.

Specific conductance: Maximum daily, 8,080 micromhos July 29; minimum daily, 1,110 micromhos Jan. 19

Water temperatures: Maximum observed, 95*F July 26; minimum observed, freezing point Dec. 21. 

EXTREMES, 1947-52. Dissolved solids: Maximum, 6,310-ppm June 21-30, 1950; minimum, 708 ppm Mar. 21-24, 

Hardness: Maximum, 3,030 ppm July 12, 17, 19, 1951; minimum, 435 ppm Aug. 6-7, 1952.

Specific conductance: Maximum daily, 9,070 micromhos June 23, 1950; minimum daily, 898 micromhos Feb. 

Water temperatures: 1949-52. Maximum observed, 97*F July 2, 1950; minimum observed, freezing point on 

REMARKS. Prior to July 8, 1948, samples were collected at gaging station near Hanksville. Values report

constituents. Records of specific conductance of daily samples available in district office at Salt L

able for this station.

Chemical analyses,in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-2,6-10,1951

Oct. 11-20 ......

Oct. 21-26 ......

Dec. 11-20 ......

Dec. 21-24, 27, 31 

Jan. 3-6,9-10,1952

Jan. 15-20 ......

Jan. 25, 27, 29-31 

Feb. 1-10 .......

Feb. 11-12, 17-20 

Feb. 21-29 ......

Mar. 11-20......

Mar. 21-31.....

Mean 

discharge 

(cfs)

Silica 

(SiOJ

21 

18 

26 

26 

16 

22 

25 

23

26 

32 

26 

24 

33 

24 

23 

20

22 

24 

27 

23 

23 

26

Iron 

(Fe)

0.04

.06 

.03

.02 

.03 

.03

.05 

.04 

.05 

.04 

.03 

.04

.04

.05 

.11 

.06 

.09 

.06 

.05

Calcium 

(Ca)

440 

544 

346 

304 

537 

453 

356 

296

318 

280 

265 

408 

292 

178 

200 

278

250 

247 

228 

229 

228 

210

Magnesium 

(Mg)

67 

99 

63 

54 

68 

58 

56 

54

64 

68 

52 

75 

64 

37 

35 

42

43 

50 

48 

49 

52 

62

Sodium 

(Na)

167 

44 

110 

95 

28 

153 

128 

142

190 

180 

120 

260 

195 

96 

t 

123

147 

174 

160 

174 

180 

145

Potassium 

(K)

12 

7 

12 

12 

8 

12 

9.6 

8.5

10 

11 

5.6 

10 

8.4 

4.8 

6 

8.3

7.7 

7.8 

7.5 

7.8 

7.7 

7.7

Bicarbonate 

(HCO,)

183 

187 

160 

169 

157 

159 

177 

164

220 

244 

206 

254 

260 

174 

165 

159

166 

192 

182 

180 

192 

189

Sulfate 

(804 )

1,350 

2,050 

1,030 

894 

1,820 

1,340 

1,040 

946

942 

955 

764 

1,250 

876 

516 

536 

838

779 

763 

714 

740 

776 

729

Chloride 

(Cl)

120 

318 

105 

85 

172 

125 

122 

118

200 

172 

107 

253 

192 

85 

81 

106

142 

164 

153 

164 

151 

152

Fluoride 

(F)

0.4

.4 

.4

.2 

.4 

.2

.2 

.3 

.2 

.2

.2 

.1

.1 

.2 

.3 

.3 

.3 

.3

Nitrate 

(NO,)

2.5 

1.5 

1.4 

1.4 

3.3 

2.5 

1.9 

2.6

3.2 

2.9 

2.4 

3.4 

4.1 

2.5 

2.3 

2.8

3.0 

4.3 

3.1 

3.0 

2.2 

6.1

Boron 

(B)

0.31 

.24

.35

.24 

.21

.17

.16

"

Diss

Parts 

per 

million

2,270 

3,570 

1,770 

1,560 

2,990 

2,240 

1,830 

1,670

1,860 

1,820 

1,440 

2,410 

1,790 

1,030 

1,030 

1,500

1,480 

1,530 

1,430 

1,480 

1,510 

1,430
DIRTY DEVIL RIVER BASIN Continued

DIRTY DEVIL RIVER NEAR KITE, UTAH Continued

Chemical analyses, in parts per million, water year October 1951 to September 195

Date of collection

Apr. 1-10, 1952..

June 5-6, 8 .....

Aug. 2-5, 9-10..,

Aug 11-20

Aug. 21-28 ......

Sept. 2-4, 6 ..... 

Sept. 13, 15-17,20 

Sept. 21-25, 27 ..

Mean 

discharge 

(cfs)

Silica 

(SiO,)

25 

24 

21 

17 

15 

14

14 

18 

14 

13 

22 

19 

24 

30 

17

18 

13 

17 

19 

11 

22 

21 

19

Iron 

(Fe)

0.07 

.07 

.05 

.05 

.12 

.04

.05 

.06 

.04 

.05 

.33

.06 

.07

.13

.13 

.13

!l3 

.56 

.11

Calcium 

(Ca)

252 

242 

298 

366 

290 

210

212 

488 

234 

224 

254 

440 

352 

548 

576

508 

110 

596 

594 

279 

588 

522 

540

Magnesium 

(Mg)

66 

57 

72 

59 

63 

53

50 

80 

50 

54 

66 

79 

85 

181 

105

87 

39 

106 

92 

56 

93 

81 

74

Sodium 

(Na)

184 

172 

196 

152 

100 

160

109 

269 

85 

160 

221 

265 

294 

861 

354

352 

117 

452 

317 

121 

212 

272 

316

Potassium 

(K)

8.3 

8.7 

9.7 

9.0 

7.2 

7.2

7.2 

12 

6.4 

6.9 

8.7

17 

61

18

18 

17

17 

15 

14

Bicarbonate 

(HCO.)

175 

171 

164 

156 

198 

182

196 

178 

158 

182 

204 

190 

174 

319 

253

231 

206 

243 

228 

306 

184 

191 

141

Sulfate 

(SOJ

937 

838 

1,080 

1,160 

894 

775

661 

1,700 

708 

754 

965 

1,590 

1,310 

1,900 

2,170

1,790 

388 

2,180 

2,000 

846 

1,890 

1,730 

1,880

Chloride 

(Cl)

137 

148 

153 

98 

82 

99

89 

150 

74 

129 

155 

129 

249 

1,340 

121

222 

82 

305 

192 

40 

148 

195 

141

Fluoride 

(F)

0.2 

.3 

.2 

.2 

.3 

.3

.4 

.3 

.4 

.4 

.4

.6 

.6

.4

.3 

.3

.6 

.6 

.3

Nitrate 

(NO,)

4.1 

2.0 

3.1 

2.4 

3.0 

3.0

2.0 

2.0 

3.1 

3.2 

4.8 

7.9 

3.4 

1.9 

1.7

2.1 

.8 

1.2 

2.1 

1.2 

4.0 

3.0 

1.9

Boron 

(B)

0.19 

.17

.15 

 44

.52 

.35

Dissolv

(s

Parts 

per 

million

1,700 

1,580 

1,910 

1,940 

1,550 

1,410

1,240 

2,810 

1,250 

1,430 

1,800 

2,620 

2,420 

5,080 

3,470

3,110 

851 

3,800 

3,350 

1,500 

3,070 

2,930 

3,080

T

p

ac

fo

2

2

2

2

2

1

1

3

1

1

2

3

3

6

4

4

1

5

4

2

4

3

4
DIRTY DEVIL RIVER BASIN 109

DIRTY DEVIL RIVER BASIN Continued

DIRTY DEVIL RIVER HEAR HITE, UTAH Continued

Temperature (°f) at water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

66

67

64

68

62

63

63

65

66

64

67

67

64

64

68

_

67

64

63

61

60

58

57

56

56

55

53

50

52

55

57

61

Nov.

54

45

48

45

46

48

49

46

50

50

50

47

45

44

44

40

40

42

45

40

39

38

40

40

41

40

_^

44

Dec.

41

42

41

41

38

35

34

35

36

37

35

37

35

36

37

33

34

32

34

33

33

~

_

37

0*7 0 I

~

Jan.

_

33

33

37

35

35

33

33

37

36

33

35

35

38

36

35

41

42

40

38

39

40

Feb.

40

41

41

40

41

41

41

41

37

42

42

42

_

44

43

42

38

39

40

41

42

43

43

41

43

41

Mar.

41

39

39

_

45

48

52

44

48

44

43

44

45

44

_

45

45

45

44

41

_

40

46

49

..

49

51

57

54

55

46

Apr.

_

_

57

55

56

61

_

56

56

56

57

56

57

59

55

58

66

65

65

60

65

64

_

65

67

..

__

59

60

61

60

May

70

74

73

74

70

70

_

_

_

66

72

71

65

63

63

62

71

72

67

67

68

73

70

75

_

_

73

74

~

June

74

70

66

72

77

78

_

74

_

~

..

_

74

71

70

73

75

78

78

78

75

77

75

_

77

78

78

80

July

83

85

84

_

85

78

75

77

73

81

82

80

79

88

88

88

89

89

80

_

_

89

91

95

89

84

92

Aug.

_

90

89

87

84

84

79

_

81

78

81

78

75

._

73

78

81

86

82

78

85

84

83

82

..

73

75

_

68

Sept.

_

71

80

81

80

_

_

_

_

_

_

65

65

78

_

_

67

65

68

65

68

72

..

68

_

_

_
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT KITE, UTAH

LOCATION? -At gaging station at Kite, Garfield County, a quarter of a mile upstream from Trachyte Creek, 1 

downstream from Dirty Devil River, and 84 miles" upstream from San Juan River. 

DRAINAGE AREA. 76,600 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: May 1949 to September 1952.

Sediment records: October 1948 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,990 ppm (sum) Sept. 22; minimum, 251 ppm June 11-20.

Hardness: Maximum, 1,080 ppm Sept. 22; minimum, 155 ppm June 11-20.

Specific conductance: Maximum daily, 2,470 micromhos Sept. 22; minimum daily, 355 micromhos June 19.

Water temperatures: Maximum observed, 82*F July 28-29, Aug. 24; minimum observed, freezing point Dec. 1

Sediment concentrations: Maximum daily, 21,400 ppm Oct. 27; minimum daily, 130 ppm Dec. 14.

Sediment loads: Maximum daily. 1,560,000 tons Apr. 30; minimum daily, 980 tons Dec. 14. 

EXTREMES, 1948-52. Dissolved solids (1950-52): Maximum, 1,990 ppm Sept. 22, 1952; minimum, 251 ppm June 

Hardness (1950-52): Maximum, 1,080 ppm Sept. 22, 1952; minimum, 155 ppm June 11-20, 1952.

Specific conductance (1950-52): Maximum daily, 2.470 micromhos Sept. 22, 1952; minimum daily, .355 microm

Water temperatures (1949-52): Maximum observed, 83°F July 31, 1951; minimum observed, freezing point on 

Sediment concentrations: Maximum daily, 34,300 ppm Aug. 4, 1951; minimum daily, 49 ppm Jan. 10, 1951.

Sediment loads: Maximum daily, 1 770,000 tons Aug. 4, 1951; minimum daily, 447 tons Jan. 10, 1951.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conductan

at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in W

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951...

Dec. 22-24,29-31 . 

Jan. 1-10, 1952 ..

Feb 1-10

Feb. 11-12, 17-20.

Mar. 21-31.......

Mean 

discharge 

(cfs)

5,152 

6,288 

7,055 

6,945 

6,125 

5,699

5,744 

3,588 

5,230 

5,460 

4,929 

8,775

5,854 

5,435 

5,241 

5,209 

5,936 

6.250

Silica 

(SiO,)

12 

14 

13 

14 

14 

15

14 

14 

15 

12 

15 

12

14 

14 

14 

14 

13 

13

Iron 

(Fe)

Calcium 

(Ca)

138 

114 

138 

124 

115 

120

119 

129 

134 

110 

128 

108

105 

107 

105 

108 

114 

103

Magnesium 

(Mg)

58 

48 

53 

52 

52 

50

49 

56 

49 

50 

51 

43

45 

45 

47 

48 

44 

45

Sodium 

(Na)

165 

148 

163 

149 

151 

157

175 

190 

145 

145 

186 

137

150 

158 

165 

177 

163 

161

Potassium 

(K)

6.1 

5.5 

5.9 

5.9 

5.7 

5.7

5.2 

6.0 

4.8 

3.8 

4.2 

3.8

5.3 

5.3 

5.4 

5.9 

5.3 

5.2

Bicarbonate 

(HCO,)

226 

184 

214 

224 

230 

231

244 

252 

230 

222 

260 

208

214 

218 

228 

226 

224 

204

Carbonate 

(CO,)

Sulfate 

(S04)

580 

477 

559 

505 

568 

479

473 

527 

481 

426 

494 

405

405 

424 

412 

435 

454 

436

Chloride 

(CD

116 

100 

106 

94 

108 

114

120 

144 

119 

112 

149 

114

117 

126 

138 

146 

122 

124

Fluoride 

(F)

Nitrate 

(NO,)

4.9 

4.9 

4.9 

4.9 

4.9 

4.8

4.4 

5.6 

5.3 

5.5 

6.1 

4.6

4.4 

4.6 

5.0 

5.1 

5.5 

5.4

Boron 

(B)

0.29 

.29

.20

.19 

.14

P

m

1

1

1
Apr. 2-4, 7, 9-10,195!

May 11-20 ........

June 21-30 ........

July 11-20.........

July 21, 24-25,27-30

Aug. 11-20

Sept. 2-3, 5-7 ..... 

Sept. 11-20 .......

Sept. 21,23,25-26,28 

Sept. 22...........

Weighted average

15,420 

28,610

79,930

47,090

28,600

10,980

10,800

9,698 

6,253

7,032 

9,280

b21,250

12 

12

1 9

13

15

11 

14

13

98

48

45

47

50

45

78

122

118 

110

137 

338

65

40

16

15

14

30

«ty

38

41

43 

48

51 

58

23

147 

94

30

24

30

20

38

84

110

103

110 

127

149 

\

58

5.5

2.1

2.4

9 A

9 <t

4.7

5.5

5.4

6.0 

!08

3.3

235

158

141

179

202

91 9

240

200 

214

171

415 

258

94

74

94

185

261

44 K

421 

440

548 

1,150

183

76

24

22

59

66

114 

109

37

3.8

3.0

2.0

1.0 

20

4.2 2 R

3.0 

3.8

5.2 

9.8

2.7

--~

a

a Sum of determined constituents.

b Represents 97 percent of runoff for water year October 1951 to September 1952.
112 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT HITE, UTAH. Continued 

Temperature (*F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

68

68

66

63

63

62

63

63

62

62

62

63

61

60

51

61

60

59

60

60

58

67

57

57

55

54

54

52

53

52

53

60

Nov.

52

47

48

45

46

46

46

46

48

47

48

47

45

44

44

42

40

39

40

42

40

39

39

40

39

40

40

40

40

43

Dec.

41

43

..

42

41

39

39

37

35

34

34

34

32

33

34

34

33

32

_

33

34

35

--

_

35

36

Jan.

35

33

32

33

33

33

33

33

33

33

33

33

33

34

34

34

34

34

35

34

35

37

38

40

41

38

38

36

35

Feb.

39

39

39

38

38

39

38

40

39

40

39

40

~

_

40

38

38

38

39

38

40

40

40

40

40

40

41

~

39

Mar.

41

40

43

45

45

47

47

48

46

44

43

44

45

45

45

45

44

43

42

42

44

45

45

48

49

50

51

52

45

Apr.

_

53

55

55

50

54

53

50

54

54

54

55

57

56

56

~

56

67

57

60

57

_

58

57

59

~

May

63

63

64

64

63

60

60

60

62

60

60

61

63

60

60

60

62

61

61

60

63

64

65

66

66

66

62

June

67

66

63

66

66

67

68

68

68

69

68

68

69

69

68

68

69

69

68

70

69

70

~

_

68

69

69

70

68

July

70

70

72

75

73

73

..

73

74

71

_

73

74

77

77

78

77

79

78

78

_

81

81

_

81

82

82

79

Aug.

_

80

80

80

80

81

._

80

80

79

79

77

78

78

77

79

80

79

80

78

78

77

82

__

75

_

79

76

74

79

Sept.

_

73

73

_

72

73

72

__

72

70

70

70

71

69

72

68

72

70

68

68

69

._

71

72

68

_

_

~

~
COLORADO RIVER MAIN STEM 113

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT HITE, UTAH. Continued

Suspended sediment, water year October 1951 to September 1952

Day

1ft

31 ......

Total1 .....

4 - - 

5 -----

9 ~ 

10 ----- 

11 -----

13 -----

17.....

18 ...

19

20 -----

21 ----- 

22 ..... 

23 ----- 

24 -----

25 

26 ----- 

27 ----- 

28 ----- 

29 ----- 

30 ----- 

31 ...

Total

October

Mean

charge

(cfs)

4,220 

4,440 

4,530 

4,820 

5,120

4,980 

4,960 

5,210 

6,130 

7,110

7,550 

6,960 

6,390 

6,310 

6,250

6,000 

5,870 

5,880 

5,900 

5,770

5,660 

5,750 

5,630 

5,650 

5,660

5,830 

7,110 

7,470 

9,640 

9,440 

9,770

192,010

Suspended sediment

Mean 

concentration 

(ppm)

641 

700 

646 

830 

1,030

1,000 

2,900 

2,500 

900 

1,420

3,020 

2,580 

2,800 

4,340 

4,160

4,200 

4,720 

3,290 

1,970 

1,650

1,190 

1,010 

1,060 

880 

511

1,410 

21,400 

11,400 

5,200 

10,800 

8,200

Tons 

per 

day

7,300 

8,390 

7,900 

10,800 

14,200

13,400 

38,800 

35,200 

14,900 

27,300

61,600 

48,500 

48,300 

73,900 

70,200

68,000 

74,800 

52,200 

31,400 

25,700

18,200 

15,700 

16,100 

13,400 

7,810

22,200 

411,000 

230,000 

135,000 

275,000 

216,000

2,093,200

January

7,400 

8,710 

7,600 

5,830 

4,910

4,810 

4,330 

4,200 

3,490 

3,320

3,630 

3,520 

3,740 

4,060 

4,200

4,760 

5,540 

6,680 

6,630 

6,530

6,570 

6,840 

6,530 

6,250 

6,060

5,980 

6,550 

7,550 

8,180 

7,420 

6,590

178,410

3,900 

4,460 

4,290 

3,990 

3,310

2,720 

1,860 

1,200 

758 

509

700 

400 

277 

288 

310 

320 

460 

750 

1,030 

778

777 

880 

870 

769 

749 

726 

780 

800 

808 

839 

811

77,900 

105,000 

88,000 

62,800 

43,900

35,300 

21,700 

13,600 

7,140 

4,560

6,860 

3,800 

2,800 

3,160 

3,520

4,110 

6,880 

13,500 

18,400 

13,700

13,800 

116,000 

a!5,000 

13,000 

12,300

11,700 

13,800 

16,300 

17,800 

16,800 

14,400

897,530

November

Mean

charge

(cfs)

8,960 

7,660 

6,960 

6,800 

6,700

6,610 

6,510 

6,650 

6,370 

6,230

6,190 

6,090 

6,090 

6,130 

6,170 

6,110 

6,020 

6,150 

6,190 

6,110

5,590 

5,480 

5,050 

5,060 

5,380

6,080 

6,330 

6,190 

6,020 

5,810

187, 690

Suspended sediment

Mean 

concentration 

(ppm)

5,600 

4,390 

2,720 

1,800 

1,800

1,820 

1,030 

905 

675 

946 

636 

538 

382 

377 

423 

447 

500 

526 

573 

612

508 

446 

382 

882 

545

687 

741 

527 

437 

511

Tons 

per 

day

135,000 

90,800 

51,100 

33,000 

a 33, 000

32,500 

18, 100 

16,200 

11,600 

15,900

10,600 

8,850 

6,280 

6,240 

7,050

7,370 

8,130 

8,730 

9,580 

10,100

7,670 

6,600 

5,210 

12,000 

7,920

11,300 

12,700 

8,810 

7,100 

8,020

607,460

February

6,130 

5,940 

5,880 

5,750 

5,770

5,830 

5,880 

5,960 

5,810 

5,590

5,310 

5,290 

5,240 

5,360 

5,410

5,470 

5,540 

5,540 

5,480 

5,450

5,450 

5,410 

5,310 

5,190 

5,130

5,310 

5,280 

5,150 

4,940

159,800

842 

723 

724 

565 

471

476 

521 

537 

556 

657 

928 

827 

800 

900 

1,100

1,500 

1,440 

879 

738 

682 

999 

1,140 

943 

529 

555 

677 

522 

435 

400

13,900 

11,600 

11,500 

8,770 

7,340

7,490 

8,270 

8,640 

8,720 

9,920 

13,300 

11,800 

a 11, 000 

a 13, 000 

a 16, 000

a 22, 000 

21,500 

13,100 

10,900 

10,000

14,700 

16,700 

13,500 

7,410 

7,690

9,710 

7,440 

6,050 

5,340

327, 290

December

Mean

charge

(cfs)

5,430 

5,610 

5,720 

5,770 

5,810

6,040 

6,270 

6,130 

5,660 

5,000

4,020 

3,370 

2,940 

2,800 

2,900

3,000 

3,610 

,120 

,280 

,840

,880 

,860 

,420 

,400 

,640

5,210 

5,590 

5,650 

5,500 

5,830 

6,370

150,670

Suspended sediment

Mean 

concentration 

(ppm)

611 

331 

300 

271 

430

346 

391 

195 

184 

215

379 

280 

200 

130 

243 

265 

281 

286 

285 

300

335 

371 

327 

262 

280

308 

307 

319 

320 

1,380 

3,550

Tons 

per 

day

8,960 

5,010 

a4,600 

4,220 

6,750

5,640 

6,620 

3,230 

2,810 

2,900

4,110 

a 2, 500 

a 1,600 

980 

1,900 

2,150 

2,740 

3,180 

3,290 

3,920

4,410 

4,870 

3,900 

3,110 

a3,500

4,330 

4,630 

4,870 

4,750 

21,700 

61,100

198.280

March

4,880 

4,910 

5,030 

5,080 

5,130

5,330 

5,400 

5,400 

5,430 

5,500 

6,000 

6,230 

6,430 

6,330 

5,900

5,660 

5,630 

5,650 

5,720 

5,810

5,940 

5,880 

5,940 

5,960 

5,980 

5,980 

5,870 

5,940 

6,130 

7,130 

8,000

180,200

386 

384 

369 

360 

370

374 

395 

413 

483 

680 

1,600 

2,220 

3,350 

2,300 

1,460

1,300 

1,010 

860 

830 

751 

597 

497 

442 

484 

536

471 

472 

590 

820 

1,000 

1,300

5,090 

5,090 

5,010 

a4,900 

a 5, 100

5,380 

5,760 

6,020 

7,080 

10, 100

25,900 

37,300 

58,200 

39,300 

23,300

a 20, 000 

15,400 

13,100 

12,800 

11,800

9,570 

7,890 

7,090 

7,790 

8,650 

7,600 

7,480 

9,460 

13,600 

19,300 

28, 100

443, 160

a Computed from estimated concentration graph.
114 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT BITE, UTAH. Continued 

Suspended sediment, water year October 1951 to September 1952--Continued

Day

2

5 

6-»

7 

13 

14 

16 

19 

AA

AA

24 _ . _

no

so 

31 

Total4 

6 

7 

12 

17 

IP

19 

20 

22 

23 

24 

25 

26 

27 

28 

29 

30- 

31 

Total

April

Mean

charge 

(cfs)

8,930 

9,910 

10,300 

12,500 

15,100

16,600 

17,700 

16,700 

18,000 

23,300

28,500 

27,000 

26,000 

24,800 

23,400

23,500 

26,600 

31,400 

36,400 

38,500

40,000 

41,000 

43,800 

46,500 

47,300

49,200 

50,400 

53,000 

60,300 

63,700

931,940

Suspended sediment

Mean 

concentration 

(ppm)

2,400 

3,880 

5,600 

6,220 

6,190

6,190 

6,230 

6,600 

6,940 

9,350

11,200 

10,300 

10,100 

9,800 

8,030

7,520 

8,080 

7,800 

10,000 

11,000

9,730 

6,300 

6,430 

8,320 

7,980 

8,200 

8,400 

8,500 

8,680 

9,090

Tons 

per 

day

a 58, 000 

104,000 

156,000 

210,000 

252,000

277,000 

298,000 

298,000 

352,000 

588,000

862,000 

751,000 

709,000 

656,000 

507,000

477,000 

580,000 

661,000 

983,000 

al, 100,000

1,050,000 

711,000 

760,000 

1,040,000 

1,020,000 

11,100,000 

11,100,000 

1,220,000 

1,410,000 

1,560,000

20,850,000

July

36,300 

36,100 

35,100 

33,800 

30,400

28,500 

27,200 

28,600 

29,500 

27,700

25,000 

23,200 

21,700 

20,500 

19,400

18,200 

16,800 

15,800 

14,700 

13,900

13,500 

12,600 

12,000 

11,400 

10,700

10,100 

9,570 

9,460 

10,500 

11,700 

12,200

626, 130

1,500 

1,480 

1,450 

1,230 

951

1,000 

1,040 

1,720 

2,380 

4,100

4,300 

3,550 

2,070 

1,440 

1,720

1,350 

780 

615 

600 

500 

500 

490 

480 

472 

403

440 

461 

502 

1,850 

11,400 

15,000

_

Total discharge for year (cfs147,000 

144,000 

137,000 

112,000 

78,100

77,000 

76,400 

133,000 

190,000 

307,000 

a290,000 

222,000 

121,000 

79,700 

90,100

66,300 

35,400 

26,200 

a 24, 000 

18,800

18, 200 

a 17, 000 

a 16, 000 

14,500 

11,600

a 12, 000 

11,900 

12,800 

52,400 

360,000 

a490,000

3,391,400

May

Mean

charge

(cfs)

59,200 

56,800 

57,800 

62,700 

74,100 

81,600 

88,600 

90,600 

89,400 

87,800

87,600 

85,500 

80,800 

78,100 

77,200

79,500 

82, 100 

82,600 

76,100 

69,800

65,000 

59,800 

57,500 

55,100 

51,600

48,400 

46,900 

48,200 

49,800 

52,200 

55,500

2,137,900

Suspended sediment

Mean 

conceit 

tration 

(ppm)

9,290 

8,370 

7,130 

4,600 

4,300

4,700 

4,650 

4,600 

5,610 

4,800

2,930 

3,000 

2,930 

3,610 

2,700

2,800 

2,920 

2,780 

2,560 

2,150

2,180 

2,250 

2,600 

2,560 

2,190

2,200 

2,100 

2,000 

1,990 

1,900 

1,900

Tons 

per 

day

1,480,000 

1,280,000 

1,110,000 

780,000 

860,000

1,040,000 

1,110,000 

1,130,000 

1,350,000 

1,140,000

693,000 

a 690, 000 

639,000 

761,000 

563,000

601,000 

647,000 

620,000 

526,000 

405,000

383,000 

363,000 

404,000 

381,000 

305,000

287,000 

a 270, 000 

a 260, 000 

268,000 

268,000 

285.000

20,899,000

August

12,500 

12,700 

12,300 

12,200 

11,800 

11,300 

10,800 

9,800 

9,380 

9,080 

9,570 

9,960 

10,400 

12,300 

15,100

12,700 

11, 800 

11,600 

11,100 

10,300

9,570 

9,540 

9,700 

10,000 

10,600

10,800 

11,200 

11,100 

11,300 

12,300 

12,700

345,500

17,000 

17,800 

16,100 

12,100 

8,480

6,980 

6,200 

5,700 

16,000 

11,300 

8,150 

2,700 

1,900 

3,550 

10,700

7,010 

3,680 

6,450 

5,900 

3,410

2,400 

2,120 

1,800 

2,490 

3,400

6,100 

12,100 

9,800 

9,230 

11,200 

9,200

_

610,000 

535,000 

399,000 

270,000

213,000 

al80,000 

alSO, 000 

c410,000 

277,000

211,000 

72,600 

53,400 

118,000 

3441,000

240,000 

117,000 

202,000 

177,000 

94,800

62,000 

54,600 

47,100 

67,200 

a 97, 000

a!80,000 

s367,000 

a290,000 

282,000 

8375,000 

315,000

7,477,700

June

Mean

charge

(cfs)

59,400 

62,600 

64,000 

66,800 

71,100

81,600 

86,200 

87,700 

95,100 

98,500

101,000 

99,800 

100,000 

98,500 

93, 900

89,800 

87,600 

83,600 

73,400 

64,600

59,500 

57,300 

53,600 

49,600 

47,200

43,800 

42,400 

40,200 

39,400 

37,900

2.136.100

Suspended sediment

Mean 

concentration 

(PP«)

1,920 

1,880 

1,840 

1,990 

2,260

2,300 

2,200 

2,090 

2,140 

2,180

2,200 

2,190 

2,120 

2,170 

2,120

2,120 

2,010 

1,990 

1,980 

1,840

1,840 

1,750 

1,600 

1,600 

1,600

1,600 

1,600 

1,560 

1,550 

1,510

Tons 

per 

day

308,000 

318,000 

318,000 

359,000 

434,000

507,000 

512,000 

495,000 

549,000 

580,000

600,000 

590,000 

572,000 

577,000 

537,000

514,000 

475,000 

449,000 

392,000 

321,000

296,000 

271,000 

232,000 

a 210, 000 

a 200, 000

a 190, 000 

183,000 

169,000 

165,000 

155,000

11.478.000 ,

September

12,200 

11,900 

11,100 

9,960 

8,980

8,490 

8,020 

7,800 

7,380 

4,020

6,820 

6,450 

6,430 

6,290 

6,080

6,000 

5,870 

6,110 

6,210 

6,270

6,430 

9,280 

7,550 

7,130 

6,900

7,300 

7,190 

6,980 

6,880 

6,680

227.700

6,500 

5,900 

8,770 

8,200 

6,400 

4,250 

4,520 

4,100 

3,500 

2,300

1,080 

800 

600 

584

547

532 

610 

1,100 

880 

810

2,570 

23,000 

9,730 

4,420 

2,320

2,200 

1,500 

1,100 

1,000 

810

a 210, 000 

190,000 

263,000 

a 220, 000 

155,000

97,400 

97,900 

a 86, 000 

a 70, 000 

a44,000

19,900 

13,900 

10,400 

9,920 

8,980

8,620 

9,670 

18,100 

14,800 

13,700

s 47, 500 

sc598,000 

cl98,000 

85,100 

43,200

43,400 

29, 100 

20,700 

al9,000 

a 15, 000

2,660,290

7,454.050 

71,123,310

s Computed by subdividing day.

a Computed from estimated concentration graph.

c Computed from partly-estimated concentration graph.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT KITE, OTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to 

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date 

of 

collection

Oct. 3, 1951 ....

Jan. 27, 1952 . . . 

Feb. 18 ........

Apr. 22 .......

July 5 ..........

Time

10:00 a. m. 

10:30 a. m. 

2:00 p. m. 

4:00 p.m. 

9:45 a. m. 

2:15 p.m. 

2:00 p. m.

11:15 a. m. 

11:45 a. m. 

3:15 p.m. 

10:15 a. m. 

3:15 p.m. 

3:15 p.m.

9:00 a. m. 

8:45 a. m. 

12:45 p.m. 

4:30 p. m. 

4:30 p.m. 

2:45 p. m. 

3:45 p.m.

3:45 p.m. 

12:30 p.m. 

2:45 p. m. 

11:00 a. m. 

11:00 a. m. 

12:15 p.m. 

11:30 a. m. 

2:15 p.m.

Water 

discharge 

(cfs)

4,560 

7,620 

5,870 

6,720 

7,750 

6,110 

3,950

6,650 

5,540 

6,150 

7,150 

10,300 

10,300

29, 100 

41,900 

46,700 

61,600 

75,400 

87,400 

87,400

87,400 

76,800 

58,900 

70,800 

94,200 

89,700 

53,700 

30.300

Water 

temperature 

CF)

Suspended zedim

Concentration 

of sample 

(ppm)

937 

2,800 

1,050 

18,200 

4,380 

288 

374

703 

1,580 

752 

5,680 

5,680

10,400 

6,070

5,250 

4,090 

3,740

3,740 

2,500 

2,140 

2,930 

1,970 

1,440 

1,270 

952

Concentration 

of suspension 

analyzed 

(ppm)

4,170 

3,150 

2,780 

2,260 

3,090 

1,560 

1,040

2,770 

830 

2,100 

1,160 

3,890 

3,430

4,080 

3,760 

4,330 

4,400 

2,760 

4,180 

5,780

1,210 

3,000 

4,950 

4,130 

3,760 

2,680 

2,600

Percent finer th

0.002

66

27

35 

46

35 

23

0.004

73 

26 

55 

22 

58 

74 

34

30 

64 

72 

43 

60 

58

44 

41 

43 

40 

36 

33 

28

28 

25 

28 

35 

30 

21 

21

0.008

77

40

49 

71

50 

34

0.016

81 

53 

60 

73 

77 

83 

50

56 

89 

90 

61 

81 

80

65 

66 

68 

60 

60 

49 

42

40 

41 

42 

50 

45 

35 

32

0.0
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT KITE, UTAH Continued

Particle-size analyses of suspended sediment, water year October 1951-to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, s

W, in distilled water; C, chemically disperzed; M, mechanically di

Date 

of 

collection

July 9, 1952 ....

Aug. 15. ........

Aug. 27. ........

Time

3:45 p.m. 

3:15 p.m. 

4:30 p.m. 

4:30 p.m. 

3 :30 p. m. 

6:00 p.m. 

9:45 a. m. 

6:45 a.m.

Water 

discharge 

(cfs)

29,600 

13,500 

9,440 

11,900 

9,000 

14,900 

9,750 

10,700

Water 

temperature 

(°F)

Suspended sedime

Concentration 

of sample 

(ppm)

3,840 

407 

593

1,680 

10,100 

1,560 

12,600

Concentration 

of suspension 

analyzed 

(ppm)

4,460

4,920 

5,280 

4,740 

2,430 

3,560

Percent finer tha

0.002

--

--

0.004

54

57 

73 

55 

76 

57

0.008

--

-

0.016

78

85 

96 

82 

97 

83

0: 03

-

-
ESCALANTE RIVER BASIN 

ESCALANTE RIVER AT MOUTH NEAR ESCALANTE, UTAH

LOCATION. At gaging station in Kane County, 5.1 miles upstream from month, 2.2 miles downstream from Davi

Garfield County. 

RECORDS AVAILABLE.--Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum. 681 ppm (sum) Sept. 11; minimum, 208 ppm May 11-20.

Hardness: Maximum, 368 ppm Aug. 21-26. 28-29; minimum. 148 ppm June 4-5, 7-10.

Specific conductance: Maximum daily, 1 420 micromhos July 11; minimum daily, 281 micromhos May 16.

Water temperatures: Maximum observed, 93*F July 3; minimum observed, freezing point on several days dur

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 681 ppm (sum) Sept. 11, 1952; minimum, 2

Hardness: Maximum, 368 ppm Aug. 21-26, 28-29, 1952; minimum, 148 ppm June 4-5, 7-10. 1952.

Specific conductance: Maximum dally, 1 420 micromhos July 11, 1952; minimum daily, 281 micromhos May 1

Water temperatures: Maximum observed, 93°F July 3, 1952.

REMARKS. Values reported for dissolved solids are residuee on evaporation. Records of specific conductan

at Salt Lake City, Utah. No records of discharge available for this station.

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20 ..... 

Oct. 21-31 ..... 

Nov. 1-10 . ..... 

Nov. 11-20 ..... 

Nov. 21-25 .....

Dec. 11-20 ..... 

Jan. 1-10, 1952..

Mar 1-10

Mar. 11-20......

Apr. 11-20 ......

Apr. 21-30 . .

May 1-10.. ......

Mav 21 -31. ......

Mean 

discharge 

(cts)

Silica 

(810.)

15 

16 

15 

15 

18 

16

18 

20 

19 

22 

17

18 

19 

16 

19 

16

16 

18 

17 

22 

17 

21

Iron 

(Fe)

0.02 

.03 

.01 

.01 

.01 

.02

.02 

.04 

.02 

.03 

.02

.02 

.03 

.02 

.03 

.02

.02 

.02 

.02 

.03 

.06 

.02

Calcium 

(Ca)

60 

60 

59 

56 

54 

50

52 

58 

58 

55 

46

48 

48 

45 

46 

48

45 

46 

40 

44 

41 

44

Magnesium 

(Mg)

20 

23 

22 

21 

23 

19

22 

24 

24 

23

17

19 

21 

18 

20 

20

19 

20 

18 

17 

12 

17

Sodium 

(Na)

30 

29 

24 

23 

26 

21

24 

24 

29 

26 

29

26 

24 

30 

26 

27

30 

27 

21 

17 

12 

21

Potassium 

(K)

6.2 

4.3 

5.2 

3.8 

2.2 

2.0

2.2 

3.4 

4.4 

3.6 

4.0

3.6 

3.0 

4.5 

3.5 

3.8

3.8 

3.6 

4.0 

4.2 

3.0 

3.3

Bicarbonate 

(HCO,)

176 

179 

182 

172 

177 

157

180 

188 

210 

190 

167

177 

173 

174 

169 

170

183 

180 

162 

168 

144 

158

Sulfate 

(804 )

115 

117 

101 

92 

98 

80

82 

87 

94 

90 

78

76 

81 

76 

76 

82

76 

74 

60 

52 

38 

65

Chloride 

(Cl)

29 

33 

24 

26 

31 

25

26 

30 

26 

29 

22

22 

24 

21 

24 

27

22 

26 

19 

18 

13 

24

Fluoride 

(F)

0.2 

.2 

.3 

.2 

.1 

.3

.4 

.2 

.2

.3

.3 

.3 

.3 

.3 

.1

.1 

.2 

.2 

.3 

.3 

.3

Nitrate 

(NO,)

0.9 

.4 

.8 

.8 

.4 

.4

.6 

.7 

1.0 

.8 

1.1

.9 

.6 

.9 

.5 

1.4

.9 

1.1 

1.7 

.9 

.4 

.4

Boron 

(B)

0.09 

.14

.16

.05 

.05

.07 

.06

Disso

(residu

Parts 

per 

million

370 

377 

344 

326 

344 

288

306 

336 

351 

370 

309

316 

324 

309 

318 

310

304 

313 

268 

263 

208 

173
ESCALANTE RIVER BASIN Continued

ESCALANTE RIVER AT MOUTH NEAR ESCALANTE, UTAH Contin

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

June 4-5,7-10, 1952

July 21, 28-31 ...

Aug. 21-26, 28-29

Sept. 23-30......

Mean 

discharge 

(cfs)

Silica 

(SiO,)

20 

21 

18 

18

25 

22

19 

17 

18

19 

11 

16 

10 

16

Iron 

(Fe)

0.10 

.03 

.02 

.24

.11

.45

.33 

.34 

.60

.02 

.03 

.03

Calcium 

(Ca)

38 

49 

56 

56

68 

72

76 

88 

98

82 

62 

75 

59 

63

Magnesium 

(Mg)

13 

20 

26 

26

26 

27

26 

25 

30

27 

38 

22 

26 

24

Sodium 

(Na)

20 

26 

33 

36

36 

38

45 

41 

35

Potassium 

(K)

5.0 

4.0 

4.9 

5.8

6.6

5.8

6.5 

6.5 

7.8

37 5.9 

121 

29 1 5.7 

102 

26 | 4.8

Bicarbonate 

(HCO,)

154 

168 

176 

170

202 

216

232 

230 

264

224 

303 

210 

246 

bl85

Sulfate 

(S04 )

42 

75 

117 

132 

610 

142 

138

162 

173 

193 

346 

160 

260 

128 

246 

114

Chloride 

(Cl)

14 

30 

42 

42 

25 

40 

39

35 

35 

24 

27 

40 

39 

34 

12 

26

Fluorlde 

(F)

0.4 

.4 

.2 

.3

.3 

.3

.4 

.4 

.4

.2 

.2 

.2

Nitrate 

(NOS)

1.5 

2.8 

.7 

1.4

1.4 

.7

1.1

.7 

.7

.8 

.6 

1.7 

.6 

1.2

Boron 

(B)

0.15 

.02

.07

D

(res

Parts 

per 

million

23

31

39

41

44

464

50

51

56

49

a 68

42

a 57

36

a Sum of determined constituents.

b Includes equivalent of 7 ppm of carbonate (CO,).
ESCALANTE RIVER BASIN 119

ESCALANTE RIVER BASIN Continued

ESCALANTE RIVER AT MOUTH, NEAR ESCALANTE, UTAH Continued 

Temperature (°F) of water, water year October 1951 to September 1952

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

Average

Oct.

65

70

62

56

62

64

49

66

66

69

67

62

62

63

58

65

64

48

..

61

63

54

56

50

50

47

52

60

Nov.

40

34

49

51

41

50

39

49

52

38

41

46

37

44

40

42

43

43

42

42

41

36

._

-

Dec.

_

41

42

43

36

37

33

31

33

34

35

33

32

33

32

33

33

36

33

..

--

Jan.

_

33

34

35

32

33

33

32

33

32

33

32

_

--

_

_

39

41

38

41

36

Feb.

38

41

41

40

42

42

41

32

42

42

44

39

~

_

40

37

43

44

38

41

41

46

42

38

--

Mar.

46

43

45

47

45

53

48

49

45

--

..

46

49

50

50

49

39

48

46

49

35

42

47

48

56

54

55

49

45

56

55

48

Apr.

53

45

59

59

48

61

62

57

61

51

47

55

63

60

54

51

68

52

68

64

60

67

56

70

69

60

_

64

65

70

59

May

78

80

79

78

61

72

71

71

56

75

76

75

72

72

67

53

__

70

72

60

71

72

73

58

77

82

76

79

72

80

63

71

June

_

_

75

68

82

85

80

81

77

62

_

75

82

59

75

74

80

78

80

82

76

65

75

76

79

84

82

65

_-

76

July

81

90

93

71

72

67

80

85

81

80

67

_

_

77

82

83

84

69

80

71

69

_

_

_

_

85

84

84

84

Aug.

83

81

79

81

84

84

64

_

81

82

86

79

71

81

83

81

71

80

80

78

81

79

69

80

81

72

81

81

68

_

79

Sept.

_

_

68

82

81

79

78

67

70

70

67

73

66

70

72

75

62

70

65

72

73

69

68

65

73

74
SAN JUAN RIVER BASIN 

SAN JUAN RIVER NEAR BLANCO, N. HEX.

LOCATION. At highway bridge, half a mile downstrenm from gaging station which is 1 mile upstrenm from Ca

County.

DRAINAGE AREA. 3,560 square miles, npproximately (at gnging stntion) . 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1952.

Water temperatures: March 1949 to September 1952.

Sediment records: March 1949 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 395 ppm Jan. 21-31; minimum, 89 ppm June 21-28.

Hardness: Maximum, 211 ppm Jnn. 21-31; minimum, 50 ppm June 21-28.

Specific conductance: Mnximum observed, 651 micromhos Mnr. 15; minimum observed, 107 micromhos June 20

Wnter temperatures: Maximum observed, 79°F Aug. 6, 8, 12, 31; minimum, freezing point on mnny days duri

Sediment concentrntions: Maximum daily, 20,000 ppm Mar. 15; minimum daily, 10 ppm Oct. 23.

Sediment loads: Maximum daily, 142,000 tons Mar. 29; minimum dnily, 2 tons Oct. 23. 

EXTREMES, 1945-52. Dissolved solids: Maximum, 1,030 ppm Aug. 16, 1947; minimum, 80 ppm July 1-8, 1949.

Hardness: Maximum, 680 ppm Aug. 16, 1947; minimum, 48 ppm July 1-8, 1949.

Specific conductance: Maximum observed, 1,420 micromhos Aug. 16, 1947; minimum observed, 107 micromhos 

Wnter temperatures (1949-52): Mnximum observed, 79*F Aug. 6, 8, 12, 31. 1952; minimum, freezing point 

Sediment concentrntions (1949-52): Maximum dnily, 20,000 ppm Mar. 15, 1952; minimum daily, 10 ppm Oct. 

Sediment loads (1949-52): Maximum daily, 142,000 tons Mar. 29, 1952; minimum daily, 1 ton Sept. 20-25, 

REMARKS. Values reported for dissolved solids nre residue on evaporation. Records of specific conductan

at Albuquerque, N. Mex. Records of dischnrge for water year October 1951 to September 1952 given in W

station and sampling point. Stage dischnrge relation affected by ice Jnn. 10-13.

Chemical analyses, in parts per million, water year October 1981 to Sept

Date of collection

Oct. 1-10, 19S1 ......

TIM*. 1 m

ThAJ* O1 44

Jan. 1-10, 1952 .....

Feb. 21-29 ..........

Mean 

discharge 

(cfs)

143 

122 

167 

137 

122 

157

188 

241 

461 

560 

411 

375

308 

328 

245

Silica 

(SiO,)

9.8 

15

Iron 

(Fe)

0.03 

.01

Calcium 

(Ca)

46 

49 

55 

55 

57 

55

53 

58 

51 

59 

57 

60

59 

58 

58

Magnesium 

(Mg)

9.4 

9.8 

10 

11 

12 

11

10 

11 

10 

15 

13 

15

14 

13 

13

Sodium 

(Na)

39 

44 

50 

47 

53 

51

47 

50 

40 

38 

45 

49

45 

44 

46

Potassium 

(K)

3.8

7.0

Bicarbonate 

(HCO,)

159

156

Carbonate 

(CO,)

0

0

Sulfate 

(SO,)

99

152

Chloride 

(Cl)

8.0

11

Fluoride 

(F)

0.4

.5

Nitrate 

(NO,)

1.2

2.2

Boron 

(B)

0.1

.1
Utt* 41 91

Apr. 1-10..........

Uttv 91 <11

Aug. 1-10 ..........

fl^nf 1 1ft

Weighted average . .

023 

1,428

4,781 

5,438 

6,289 

7,867 

6,602 

4,717

8,579 

11,400 

8,285 

4,911 

3,235 

3,020 

1,792 

1,271

1,081 

702 

1,260 

829 

399 

314 

S8S

2,053

14 

16

--

.OS 

.03

--

52 

50

53 

35 

30 

25 

21 

20

20 

30 

16 

15 

18 

18 

21 

28

26 

32 

54 

30 

33 

34 

36

28

12 

14

11 

6.1 

6.1 

5.2 

3.6 

3.6

3.6 

4.5 

3.4 

3.1 

3.1 

3.2 

4.3 

4.8

4.1 

8.0 

16 

5.8 

7.1 

7.2 

10

5.7

53 

34

14 

8.0 

8.2 

6.1 

6.0 

6.9

5.3 

6.7 

4.5 

5.5 

7.4 

7.3 

9.9 

13

13 

18 

17 

17 

23 

22 

21

11

3.0

2.3

158

64

0070

IS

2.8

2.0

.3

.3

3.5

.4

.04

.17
122 COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLANCO, N. HEX. Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement, generall/ between 11 a.m. and 6 p.nu7

Day

1

2

3

4

5

6

7

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

Oct.

b60

58

57

50

57

60

58

61

58

59

60

58

55

56

54

58

57

55

54

53

47

51

50

50

50

48

48

48

a 45

54

Nov.

50

41

42

42

41

45

50

45

45

45

45

48

45

40

45

48

43

42

48

45

44

37

35

37

35

37

35

38

38

--

42

Dec.

38

37

35

38

35

38

34

32

32

33

32

33

32

33

32

33

33

33

32

32

33

32

32

32

33

32

32

33

32

32

32

33

Jan.

34

a 32

33

32

33

..

32

32

32

32

32

32

32

32

32

EL 33

35

a 34

33

32

32

32

32

33

33

36

35

35

35

37

35

33

Feb.

34

33

36

35

35

34

36

38

34

36

36

35

36

34

36

b34

33

33

34

34

37

33

34

_

37

40

40

40

43

_

36

Mar.

44

41

32

37

41

a 43

42

47

43

47

39

43

40

41

40

38

40

42

42

40

36

35

35

38

43

45

47

48

b45

b45

40

41

Apr.

47

b45

46

50

b47

49

51

47

b47

46

47

49

47

55

b48

55

58

54

57

50

50

54

54

55

b54

_

__

49

55

51

May

b56

b56

b55

bS5

b55

b55

b55

b52

bSO

b50

55

b56

b60

b58

b58

55

45

b45

b52

54

55

bSl

53

60

60

b60

55

63

60

b58

b57

55

June

b58

b58

b52

b55

b60

b58

b56

b68

b58

61

60

62

b55

61

b63

b60

b65

60

b61

63

b61

64

b60

63

65

65

b69

b60

63

62

61

July

68

63

b63

b64

61

b65

b65

70

b65

b70

b67

68

72

70

b70

b72

b72

82

b70

b71

b76

76

76

b75

70

74

75

b72

75

b75

b78

70

Aug.

b78

78

a 75

b77

a 70

b79

78

79

a 75

a 75

b78

b79

a 69

a 70

70

78

a 70

a 78

a 75

a 75

78

70

b76

75

76

75

70

75

75

79

75

Sept.

70

70

75

a 70

75

..

75

60

a 75

75

a 60

75

75

70

a 50

65

70

65

65

b70

b67

60

65

a 50

a 55

a 58

a 60

60

70

66

a Observation made before 11 a.m. 

b Observation made after 6p.m.
SAN JUAN RIVEK BASIN 123

SAN JUAN RIVER BASIN--Continued

SAN JUAN RIVER NEAR BIANCO, N. HEX.--Continued

Suspended sediment, water year October 1951 to Septemberl952

Day

2 ......

3 

6 

g --_-_.

19 

22

TotalO

13 

15 

17 

20 

21 

22 

23 ----- 

24 «- 

25 

26 

27 

23 ----- 

2» ----- 

39 

31 

Total

October

Mean

charge

(cfs)

110 

117 

119 

121 

130

165 

172 

172 

167 

153

142 

144 

132 

124 

123

121 

117 

106 

103 

103

103 

101 

89 

86 

83

113 

361 

341 

218 

179 

162

4,477

Suspended sediment

Mean 

concentration 

(ppm)

. 80 

34

23

I 26 

> 20

} »

25 

21

18 

13 

10 

18 

20

690 

4,160 

2,000 

800 

350 

200

~

Tons 

per 

day

25 

12

10

10 

7

5

7 

6

5 

4 

2 

4 

a4

s280 

sc 4, 600 

c 1,800 

a 470 

a 170 

87

7,633

January

1,500 

900 

600 

500 

400

300 

350 

398 

333 

320

350 

390 

400 

426 

435

361 

381 

435 

450 

485

465 

403 

361 

353 

381 

412 

331 

357 

3S3 

329 

333

13,842

4,180 

1,000 

251 

150 

133

124 

150 

90 

40

42 

110 

158 

260 

240

120 

212 

786 

495 

390

260 

155 

85 

61 

60 

120 

128 

120 

109 

90 

90

~

16,900 

2,430 

407 

202 

144

e80 

117 

161 

81 

35 

40 

116 

171 

299 

282

117 

218 

923 

601 

a 510

a 330 

169 

83 

58 

62 

133 

132 

116 

104 

80 

81

25,182

November

Mean

charge

(cfs)

190 

172 

147 

123 

132

138 

119 

113 

112 

121

123 

121 

140 

172 

149

121 

95

79 

82 

140

192 

172 

174 

167 

190

162 

128 

117 

123 

149

4,163

Suspended sediment

Mean 

concentration 

(ppm)

100 

51 

59 

69 

65

59 

32 

25 

40 

55 

38 

33 

75 

80 

64

110 

530 

350 

150 

360

66 

49 

68 

78 

58

70 

70 

70 

64 

60

Tons 

per 

day

a 51 

24 

23 

23 

23

22 

10 

8 

12 

18 

13 

11 

28 

37 

26 

a 36 

136 

75 

33 

136 

34 

23 

32 

35 

30

31 

a 24 

a 22 

21 

24

1,021

February

345 

329 

345 

317 

309

297 

283 

270 

282 

298

385 

369 

373 

321 

329

301 

325 

345 

266 

262

280 

262 

313 

283 

239 

195 

172 

206 

252

8,553

90 

95 

135 

80 

60

76 

81 

77 

75 

100

180 

240 

360 

596 

300

210 

325 

285 

230 

170 

95 

85 

94 

90 

82 

90 

95 

150 

610

84 

84 

126 

68 

50

s65 

s66 

s60 

859 

a 80

187 

239 

363 

8506 

266 

171 

285 

265 

165 

120

72 

60 

79 

69 

53 

47 

44 

83 

415

4,231

December

Meaa

charge

(cfs)

144 

149 

160 

155 

180

167 

200 

220 

250 

250

200 

220 

240 

250 

250

250 

250 

250 

250 

250

200 

220 

250 

250 

250

300 

300 

300 

400 

600 

2,000

9,355

Suspended sediment

Mean 

concentration 

(ppm)

53

47 

28 

25 

74

74 

74 

87 

81 

94

51 

59 

80 

67 

73

74 

76 

56 

56 

64

148 

154 

154 

152 

142

147 

92 

85 

112

11,100

Tons 

per 

day

21

19 

12 

10 

36

33 

40 

52 

55 

63

28 

35 

52 

45 

19

50 

51 

38 

38 

43

80 

91 

104 

103 

96

119 

75 

69 

121 

68,100 

59,900

69, 628

March

450 

421 

291 

239 

236

236 

283 

287 

697 

1,060

900 

700 

572 

596 

554

614 

1,530 

1,120 

1,310 

1,330

1,000 

686 

542 

500 

542 

1,060 

1,460 

1,870 

2,630 

2,640 

2,780

29. 136

3,860 

2,300 

900 

357 

154

132 

157 

800 

6,020 

7,000

4,250 

2,070 

1,300 

745 

20,000

17,300 

17,000 

6,800 

10,500 

6,500

3,200 

1,460 

683 

376 

436 

1,950 

10,900 

14,500 

19,300 

13, 700 

11,200

s4,800 

2,610 

707 

230 

98

84 

120 

620 

s 12, 400 

20,000

10, 300 

3,910 

2,010 

1,200 

29, 900

s 28, 900 

s 74, 600 

20,600 

538,900 

23, 300

8,640 

2,700 

1,000 

508 

638 

85,860 

343,300 

3 73, 900 

3142,000 

97,700 

84,100

735, 635

 Estimated.

 Computed by subdividing day.

a Computed from estimated concentration graph.

c Computed from partty estimated concentration graph.
124 COLORADO RIVER BASIN

SAM JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BUNCO, N. HEX. Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

4...... 

5 ......

6------ 

7-..--- 

8 ......

9 .... 

10 ......

14 

16 -

19 

20 ------

26 ~ -

Jl ......

Total4 -

9 

10 

11 ......

1J ......

15 ......

18 . 

20 ------

21 -----

JB- - 

23 ----- 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge

(cfs)

3,070 

3,380 

3,540 

3,960 

4,400

5,200 

5,760 

6,860 

6,110 

5,530

4,890 

4,310 

3,960 

4,500 

5,530 

5,760 

5,990 

6,230 

6,350 

6,860

6,230 

6,230 

6,110 

5,530 

5,870

5,990 

6,230 

7,390 

7,670 

5,640

165,080

Suspended sediment

itean 

concentration 

(Pl»n)

10,700 

12,000 

11,500 

10,000 

10,400

8,100 

8,700 

6,250 

4,060 

2,800

1,900 

1,500 

1,200 

1,200 

1,750

1,800 

1,300 

1,550 

1,500 

1,400

950 

980 

1,230 

760 

850

1,000 

1,200 

2,300 

2,600 

605

~

Tons 

per 

day

88,700 

110,000 

110,000 

107,000 

124,000

114,000 

135,000 

116,000 

67,000 

41,800

25,100 

17,500 

12,800 

14,600 

26,100

28,000 

21,000 

26,100 

25,700 

25,900

16,000 

16,500 

20,300 

11,600 

13,500

a 16, 000 

a 20, 000 

a46,000 

c 54, 000 

9,210

1,459,410

July

3,000 

2,920 

2,780 

2,640 

2,780

3,700 

3,540 

2,920 

2,920 

3,000 

2,510 

2,260 

2,080 

1,920 

1,760

,660 

,560 

,480 

,380 

,330

,330 

,240 

,200 

,120 

,120

,120 

,160 

,200 

,560 

,510 

,420

62,100

184 

55 

89 

125

177

338 

840 

135 

1,730 

9,320 

373 

420 

200 

110 

100 

95 

80 

86 

78 

55

48 

50 

63 

72 

285

822

700 

1,970 

7,470 

6,300 

600

1,490 

434 

668 

891 

1,330

3,380 

8,030 

1,060 

sc20,000 

880,800 

2,530 

2,560 

1,120 

570 

475

426 

337 

339 

291 

198

172 

167 

204 

218 

862

2,490 

2,190 

6,380 

31,500 

25,700 

2,300

199, 112

May

Mean

discharge

(cfs)

5,420 

5,990 

7,120 

8,270 

9,260

10,000 

8,930 

8,270 

8,270 

7,120

6,350 

6,600 

6,860 

7,390 

7,960

7,960 

7,120 

5,990 

5,100 

4,690

,590 

,690 

,130 

,700 

,540

,040 

,590 

,990 

5,640 

5,870 

6,110

196,580

Mean 

concentration 

(ppm)

700 

680 

1,370 

1,900 

2,250

1,600 

900 

820 

850 

750

500 

500 

620 

650 

680

900 

419 

350 

375 

250

192 

182 

210 

190 

420

361 

350 

380 

444 

489 

760

August

,280 

,380 

,420 

,240 

,160

1,060 

928 

840 

740 

740 

780 

698 

686 

668 

843

773 

662 

626 

632 

650

1,100 

1,420 

1,040 

1,020 

850 

808 

731 

766 

822 

773 

650

27,806

325 

710 

200 

158 

111

100 

88 

102 

83 

72 

96 

97 

100 

105 

550

515 

105 

83 

119 

3,600

7,550 

5,250 

500 

230 

175

160 

90 

70 

50 

60 

40

Tons 

per 

day

10,200 

11,000 

26,300 

42,400 

56,400

43,200 

21,700 

18,300 

19,000 

14,400

8,570 

8,910 

11,500 

13,000 

14,600

19,300 

8,050 

5,660 

5,160 

3,170

2,360 

2,300 

2,340 

1,900 

4,010 

3,940 

4,340 

5,120 

6,760 

7,750 

12,500

414, 160

1,120 

2,650 

767 

529 

348

292 

220 

231 

166 

144 

202 

183 

185 

189 

a 1,300

1,070 

188 

140 

203 

6,320

s 25, 800 

20,100 

1,400 

632 

402

349 

178 

a 140 

111 

a 130 

70

65,760

June

Mean

charge

(cfs)

6,230 

6,350 

7,120 

11,400 

9,650

8,930 

9,280 

10,000 

10,000 

9,650

10,000 

9,650 

8,930 

8,270 

8,270 

8,930 

7,960 

7,120 

6,860 

6,860

6,860 

6,110 

5,420 

4,600 

4,400

4,200 

4,000 

3,700 

3,400 

3,070

217,220

Suspended sediment

Mean 

concentration 

(ppm)

392 

626 

1,250 

2,830 

1,280

918 

1,050 

1,180 

1,380 

1,450

1,000 

1,170 

830 

940 

812

900 

694 

750 

660 

690

378 

300 

275 

444 

272

188

143 

74 

68

--

Tons 

per 

day

6,590 

10,700 

24,000 

87,100 

33,400

22,100 

26,300 

31,900 

37,300 

37,800

27,000 

30,500 

20,000 

21,000 

18,100

21,700 

14,900 

14,400 

12,200 

12,800

7,000 

4,950 

4,020 

5,5iO 

3,230

2,130 

el, 800 

1,430 

679 

564

541, 103

September

560 

490 

455 

426 

398 

365 

353 

341 

317 

287 

269 

262 

283 

445 

365

321 

325 

329 

291 

246

298 

781 

1,020 

822 

644 

536 

485 

445 

412 

408

12,979

27 

25 

35 

169 

123 

65 

38 

37 

18 

22 

21 

22 

110 

390 

295

110 

70 

52 

64 

59

67 

1,200 

620 

79 

99 

52 

50 

53 

72 

70

41 

33 

43 

194 

132

a 64 

36 

34 

15 

17 

15 

16 

84 

a 470 

291

a 95 

a 61 

46 

50 

39

54 

s2,770 

1,710 

175 

172

75 

65 

64 

80 

a 77

7,018

Total discharge for year (cfs-days) 

Total load for year (tons) .........

.. 751,291

3,529,893

e Estimated.

s Computed by subdividing day.

a Computed from estimated concentration graph.

c Computed from partly estimated concentration graph.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLANCO, N. MEX. Continued

Particle-size analyses of suspended sediment, November 1951 to Augu

(Methods of analysis: B, bottom withdrawal tube; D, decantatlon; p, pipette; S, sie

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Nov. 20, 1951 . . .

Feb. 14, 1952 ... 

liar. 1

liar 11

Mar. 20 ........

May6 ..........

July 26 .........

Time

12:30 p.m. 

5:00 p.m. 

9:30 a.m. 

9:30 a.m. 

9:30 a.m. 

9:30 a.m. 

1:30 p.m. 

9:30 a.m. 

10:00 a.m. 

1:00 p.m. 

8:10 a.m. 

6:30 p.m.

6:00 p.m. 

3:50 p.m. 

3:50 p.m. 

3:50 p.m. 

3:50 p.m. 

11:00 a.m. 

1:15 p.m. 

4:30 p.m. 

4:30 p.m.

7:30 p.m. 

6:15 p.m. 

5:00 p.m. 

3:20 p.m. 

3:20 p.m. 

6:00 p.m. 

9:45 a.m. 

1:35 p.m.

Water 

discharge 

(cfs)

108 

b600 

b2,000 

b2,000 

b2,000 

b2,000 

287 

578 

1,240 

b900 

1,710 

2,780

3,070 

5,100 

5,100 

5,100 

5,100 

4,590 

7,670 

6,860 

6,860

10,400 

8,590 

10,400 

8,930 

8,930 

3,300 

2,710 

1,120

Water 

temperature 

CF)

Suspended sediment 

Concentration 

of sample 

(ppm)

376 

11,700 

10,200 

10, 200 

10,200 

10,200 

770 

1,390 

5,630 

3,910 

5,850 

12,000

8,610 

2,730 

2,730 

2,730 

2,730 

1,190 

1,390 

2,060 

2,060

1,920 

888 

1,470 

1,290 

1,290 

159 

12,900 

736

Concentration 

of suspension 

analyzed 

(ppm)

701 

2,570 

3,070 

3,060 

2,650 

2,830 

2,750 

3,300 

3,830 

3,960 

3,560 

6,300

3,290 

3,150 

908 

817 

1,150 

2,000 

2,150 

4,530 

4,880

3,940 

1,740 

2,730 

2,910 

3,340 

994 

4,060 

3,600

Percent finer than 

0.002

80

45 

11 

49 

7

27 

16 

13 

13

29 

22

0.004

84 

62 

53 

37 

62 

14 

46 

82 

45 

66 

44 

59

60 

33 

25 

14 

24 

31 

36 

27 

24

41 

43 

28 

19 

14 

32 

67 

76

0.008

91

66 

61 

73 

58

43 

28 

22 

24

45 

43

0.016

96 

79 

75 

80 

84 

78 

71 

93 

74 

88 

67 

82

66 

46 

34 

31 

29 

51 

57 

41 

39

70 

66 

44 

29 

28 

54 

91 

91

0.031

9

8

8

9

9

4

4

4

3

6

6

a When S is shown the values given for sizes 0.062 and larger are those determined by the sieve method. 

b No gage-height record, discharge reported is dally mean value estimated by Surface Water Branch.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLANCO, N. HEX. Continued

Particle-size analyses of suspended sediment, November 1951 to August 19

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, sie

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Aug. 2, 1952 ...

Aug. 22 ........

Time

10:45 a.m. 

9:00 a.m. 

8:00 a.m. 

11:00 a.m. 

11:00 a.m.

Water 

discharge 

(cfs)

1,280 

b740 

656 

1,420 

1,420

Water 

temperature 

CF)

Suspended sediment 

Concentration 

of sample 

(ppm)

879 

72 

4,110 

4,950 

4,950

Concentration 

of suspension 

analyzed 

(ppm)

1,250

2,900 

5,460 

4,240

Percent finer than 

0.002

39

51

0.004

46

74 

67 

63

0.008

60

77

0.016

71

93 

93 

92

0.031

8

9

a Whan S is shown the values given for sizes 0.062 and larger are those determined by the sieve method, 

b No gage-height record, discharge reported is daily mean value estimated by Surface Water Branch.
SAN JUAN RIVER BASIN--Continued 

ANIMAS RIVER AT FARMINGTON, N. MEX.

LOCATION. At gaging station at bridge on State Highway 17, 0.6 mile southeast of Farmington, San Juan Cou

DRAINAGE AREA. 1,360 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: June 1940 to September 1952.

Water temperatures: December 1950 to September 1952.

Sediment records: December 1950 to September 1952. 

EXTREMES, 1951-52. Specific conductance: Maximum observed, 1,160 micromhos Oct. 26; minimum observed, 1

Water temperatures: Maximum observed, 78°F July 27, Aug. 21; minimum, freezing point on many days durin

Sediment concentrations: Maximum daily, 7,180 ppm Mar. 27; minimum daily, 16 ppm Dec. 6, Sept. 11-20.

Sediment loads: Maximum daily, 64,000 tons Apr. 28; minimum daily, 6 tons Oct. 16-23. 

EXTREMES, 1940-52.--Specific conductance (1941-52): Maximum observed, 1,980 micromhos Aug. 19, 1944; min

Water temperatures (1950-52): Maximum observed, 88°F July 29, 1951; minimum, freezing point on many day

Sediment concentrations (1950-52): Maximum daily, 7,850 ppm May 27, 1951; minimum daily, 9 ppm Sept. 2

Sediment loads (1950-52): Maximum daily, 64,000 tons April 28, 1952; minimum daily, 1 ton on several da

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

trict office at Albuquerque, N. Mex. Records of discharge for water year October 1951 to September 19

affected by ice Dec. 10, 11, 14-18, 20-24, Jan. 9, 10, 12.

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951 .... 

Oct 11-20.

Jan. 1-10, 1952 ....

Mean 

discharge 

(cfs)

188 

140 

204 

217 

202 

223

209 

232 

273 

316 

308 

297

294 

307 

275 

292 

376 

580

1,162 

1,680 

2,587

Silica 

(Si02)

9.7 

11

13 

13

12 

11

10

Iron 

(Fe)

Calcium 

(Ca)

130 

126

140 

117

104 

99

55

Magnesium 

(Mg)

20 

24

23 

19

18 

17

9.8

Sodium 

(Na)

Potassium 

(K)

61

47

54 

40

45 

44

12

Bicarbonate 

(HCOS)

210 

216

230 

188

187 

189

144

Carbonate 

(CO,)

0 

0

0

 7

0 

0

0

Sulfate 

(SO,)

312 

283

312 

270

239 

216

71

Chloride 

(Cl)

30 

30

33 

6

20 

22

6.0

Fluoride 

(F)

Nitrate 

(NO,)

0.7 

1.7

2.3 

2.2

2.1 

3.0

Boron 

(B)

P
SAN JUAN RIVER BASIN Continued 

ANIMAS RIVER AT FARMINGTON, N. MEX. Continued 

Chemical analyses, in parts per million, water year October 1951 to September 195

Date of collection

May 1-10, 1952..... 

May 11-20. .........

Sept. 21-30 ........

Weighted average . .

Mean 

discharge 

(els)

4,311 

4,310 

2,617

6,618 

6,965 

3,487 

2,856 

1,549 

956

674 

500 

456 

311 

189 

477

1,288

Silica

(sio.)

5.1

4.5 

8.5

9.7 

11

--

Iron 

(Fe)

Calcium 

(Ca)

36

30 

46

71 

104

-

Magnesium 

(Mg)

6.0

4.6 

8.2

13 

18

--

Sochum 

(Na)

Potassium 

(K)

5.3

5.3 

12

27 

51

--

Bicarbonate 

(HCO.)

96

78 

98

136 

178

--

Carbonate 

(CO,)

0

0 

0

0 

0

--

Sulfate 

(SO,)

39

34 

79

151 

254

--

Chloride 

(Cl)

3.5

3.5 

9.0

14 

24

--

Fluoride 

(F)

Nitrate 

(NO,)

2.4

1.5 

.8

.7 

.6

--

Boron 

(B)

P
SAN JEAN BIVER BASIN 129

SAN JUAN RIVER BASIN Continued 

ANIMAS RIVER AT FARMNGTON, N. HEX.--Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement, generally between 11 a. m. and 6 p. mj

Day

1

2

3

4

5

6

7

8

8

10

11

12

13

14

IS

18

17

18

18

20

21

22

23

24

25

28

27

28

M

30

31

Average

Oct.

60

65

62

64

58

56

58

59

60

60

64

61

62

64

55

a 52

60

58

58

56

54

48

50

55

52

b50

53

53

48

50

50

57

Nor.

a 52

b40

42

50

41

44

45

46

47

45

46

45

44

42

44

42

45

44

40

42

41

44

44

40

45

b43

40

39

36

a38

43

Dec.

42

42

40

40

36

32

33

32

32

31

32

32

31

31

31

32

32

a 31

32

32

31

32

32

34

32

34

36

34

34

Jan.

_

34

34

32

34

34

38

32

32

34

34

34

36

34

36

38

42

39

35

34

34

38

35

36

40

36

36

36

38

38

36

Feb.

39

35

a 37

36

38

36

38

36

38

34

38

38

36

36

36

38

38

35

35

36

36

39

37

36

38

40

40

40

~

37

Mar.

42

40

40

38

42

44

42

42

44

44

42

40

42

44

42

42

42

42

42

42

42

42

42

44

45

46

40

45

48

45

42

43

Apr.

42

44

48

49

48

50

52

50

53

50

45

48

52

55

50

54

42

50

52

50

52

50

52

52

54

54

54

50

55

54

50

May

55

56

54

56

52

56

53

53

54

54

56

55

55

55

54

b52

50

b48

54

55

55

54

54

54

b5B

59

58

60

60

58

58

55

June

54

52

55

55

56

58

54

55

56

b56

63

b58

58

58

62

60

59

60

61

b60

60

62

b60

b60

60

62

b62

b62

b63

64

59

July

62

65

62

b62

65

64

62

b65

b62

b65

b65

b66

b66

b67

b68

b68

b69

b69

b69

b72

b72

b74

b74

b75

b73

b74

a 78

74

b74

b74

b75

69

Aug.

a 68

b74

a 64

a 64

a 66

76

a 67

a 68

a 66

a 67

a 66

a 66

a 68

b75

a 66

a 65

a 68

a 68

b77

a 70

b78

b76

b73

b76

b75

b75

a 65

b74

14

74

76

70

Sept.

65

b68

70

72

b73

b74

a 68

b73

b72

72

b69

b68

68

69

66

b70

b68

69

68

60

61

62

64

66

a 57

67

66

65

65

67

87

a Observation made before 11 a. m. 

b Observation made after 6 p. m.
130 COLORADO RIVER BASIN 

SAN JUAN RIVER BASIN Continued 

ANIMAS RIVER AT FABMINGTON, N. HEX. Continued 

Suspended sediment, water year October 1951 to September 1952

Day

g

13 

1O

OA

23

24 

OK

Oft

rto

29

31 

Totalo

n ......

12 

13 

14 

15 

16 

|O

20 

21 ..... 

22 ----- 

23 

24 ----- 

25 

26 ----- 

27 -----

28 

29 

30 

31 

Total

October

Mean

charge 

<cfs)

180 

208 

196 

184 

188

196 

200 

196 

173 

156

149 

146 

146 

149 

149

143 

140 

134 

121 

121

121 

121 

127 

140 

140

292 

340 

268 

244 

220 

232

5,520

Suspended sediment

Mean 

concentration 

(ppm)

50 

1,700 

119 

64 

30

24 

39 

26

22

18

} > 8 

2,230 

3,320 

1,500 

660 

200 

114

January

527 

390 

315 

300 

292

268 

280 

272 

260 

260 

244 

280 

284 

320 

315

276 

284 

380 

375 

320

296 

280 

264 

276 

305

330 

330 

310 

292 

288 

296

9,509

2,500 

750 

380 

245 

173

170 

165 

178 

176 

120

112 

139 

110 

141 

132

117 

99 

229 

490 

240

118 

120 

97 

81 

68

120 

183 

158 

144 

156 

172

Tons 

per 

day

24 

955 

63 

32 

15

13 

21 

12

9

6

7

s2,790 

3,050 

a 1,100 

a 430 

119 

71

8,832

a3,600 

a 790 

323 

198 

136

123 

125 

131 

124 

84 

74 

105 

84 

122 

112

87 

76 

235 

496 

207

94 

91 

69 

60 

56 

107 

163 

132 

114 

121 

137

8,376

November

Mean

charge

<cfs)

236 

236 

232 

228 

228

208 

212 

196 

200 

196

196 

196 

196 

212 

208

200 

200 

204 

196 

216

208 

212 

224 

240 

244

224

216 

216 

224 

224

6^428

Suspended sediment

Mean 

concentration 

(ppm)

119 

100 

77 

46 

34

42 

37 

27 

54 

43

55 

93 

83 

78 

65

66 

68 

58 

78 

108

88 

65 

40 

34 

36

36 

24 

38 

21 

19

February

296 

300 

310 

300 

288

288 

288 

288 

288 

292 

335 

340 

340 

310 

300

280 

284 

296 

305 

280

272 

284 

288 

292 

272

236 

260 

276 

296

8,484

165 

150 

170 

203 

155 

149 

175 

173 

180 

500

700 

770 

600 

410 

250

170 

190 

284 

230 

119

90 

90 

45 

83 

60

83 

100 

50 

110

Tons 

per 

day

a 76 

64 

48 

28 

21

24 

21 

14 

29 

23 

29 

49 

44 

45 

37

36 

37 

32 

41 

63

49 

37 

24 

22 

24

22 

14 

22 

13 

11

999

132 

a 120 

142 

164 

121 

116 

136 

135 

140 

b390

b630 

b710 

b550 

b340 

b200

129 

146 

227 

189 

90

66 

a 69 

35 

65 

44

53 

70 

37 

88

5,334

December

Mean

charge 

(cfs)

236 

232 

228 

244 

244

220 

170 

160 

180 

180

180 

232 

248 

230 

240

230 

220 

240 

256 

240

200 

210 

230 

260 

284

252 

240 

220 

208 

252 

646

7,412

310 

305 

292 

264 

260 

260 

280 

288 

325 

335 

335 

330 

320 

305 

310

315 

418 

418 

460 

548

490 

390 

340 

276 

350

534 

690 

786 

914 

882 

732

13,062

Suspended sediment

Mean 

concentration 

(ppm)

52 

54 

38 

26 

45

16 

48 

79 

62 

130 

94 

68 

100 

96 

94

93 

80 

68 

48 

63

133 

126 

117 

148 

148

160 

81 

80 

72 

110 

2,600

Tons 

per 

day

33 

34 

23 

17 

30

10 

22 

34 

30 

63 

46 

43 

67 

60 

a 61

58 

a48 

44 

33 

41

72 

71 

73 

104 

113

109 

52 

a48 

40 

75 

4.530

6.084

March

439 

380 

110 

80 

80

70 

63 

500 

300 

550

550 

560 

160 

127 

129

170 

2,800 

1,100 

1,400 

1,650

1,150 

380 

240 

270 

220

2,800 

7,180 

4,280 

6,960 

5,570 

4,700

367 

314 

87 

57 

56

49 

48 

389 

263 

497

497 

499 

138 

105 

108

145 

3,160 

1,240 

1,740 

2,440

1,520 

400 

220 

201 

208

s4,420 

s 13, 800 

s9,440 

s 19, 100 

s 14, 000 

s9,300

84,807

s Computed by subdividing day.

a Computed from estimated gage height graph.

b Computed from partly estimated concentration graph.
SAN JUAN RIVER BASIN 131

SAN JUAN RIVER BASIN Continued

ANIMAS RIVER AT FARMINGTON, N. MEX. Centinued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

3 ......

9 .... .-

10 

12 -.. 

ID

On

21 

22

23

94.

27

9fl

9Q

JO 

31 ......

Totalg

5 

8 ----- 

g .....

10 

12 

13 ..... 

14 ----- 

15 ... 

16 -----

IB

19 ..... 

20 

21 ... 

22 . 

23 

84 .....

as 

M 

27 ----- 

28 

29 

so ------

31 

Total

April

Mean

charge

(cfs)

756 

676 

708 

812 

955

1,260 

1,500 

1,750 

1,710 

1,490

1,410 

1,250 

1,040 

1,070 

1,370

1,630 

1,880 

2,120 

2,390 

2,640

2,390 

1,980 

1,720 

1,700 

2,150

2,640 

3,100 

4,230 

3,400 

2,560

54,287

2,560 

2,560 

2,470 

2,310 

2,470

3,490 

4,230 

3,100 

2,730 

2,640

2,390 

2,080 

1,900 

1,720 

1,570

1,380 

1,220 

1,120 

1,070 

1,040

1,040 

1,000 

946 

928 

1,010 

991 

883 

874 

937 

1,000 

910

54,569

Suspended sediment

Mean 

concentration 

(ppm)

6,920 

5,900 

5,500 

3,800 

4,200

5,900 

6,500 

6,000 

3,300 

2,240

1,470 

1,150 

950 

1,150 

2,650

2,050 

2,450 

2,000 

1,400 

1,050

750 

700 

600 

550 

700

690 

1,400 

5,600 

3,300 

600

Tons 

per 

day

814,700 

10,800 

10, 500 

8,330 

10, 800

20, 100 

26,300 

28,400 

15,200 

9,010

5,600 

3,880 

2,670 

3,320 

9,800

9,020 

12,400 

11,400 

9,030 

7,480

4,840 

3,740 

2,790 

2,520 

4,060

4,920 

11,700 

64,000 

30,300 

4,150

361,760

July

220 

220 

170 

150 

340

1,000 

1,000 

350 

270 

680

260 

130 

100 

85 

62

58 

40 

40 

38 

32

44 

36 

28 

24 

45 

55 

60 

460 

420 

3,100 

300

--

1,520 

1,520 

1,130 

936 

b2,300

b9,400 

bll.OOO 

b2,900 

1,990 

4,850 

1,680 

730 

513 

395 

263

216 

132 

121 

110 

90

124 

97 

72 

60 

123 

147 

143 

1,090 

1,060 

8,370 

737

53,819

May

Mean

charge

(cfs)

2,310 

2,640 

3,590 

4,560 

5,150

5,650 

5,520 

4,680 

4,560 

4,450

4,120 

4,230 

4,560 

5,030 

5,520

5,400 

4,800 

3,800 

3,000 

2,640

2,640 

2,470 

2,150 

1,850 

1,740

1,960 

2,230 

2,640 

3 290 

3*700 

4,120

115,000

Suspended sediment

Mean 

concentration 

(ppm)

450 

800 

1,200 

1,700 

1,900

1,500 

1,000 

700 

600 

360

340 

420 

480 

470 

510

440 

460 

350 

240 

195

145 

125 

150 

700 

225

190 

150 

280 

360 

280 

260

..

August

788 

838 

820 

740 

684

611 

569 

548 

576 

569

562 

520 

478 

460 

562

632 

514 

448 

418 

406 

436 

520 

484 

466 

466 

424 

424 

442 

424 

478 

448

16,755

130 

580 

440 

170 

90

112 

100 

98 

63 

49

95 

104 

46 

32 

73

50 

38 

33 

32 

29

35 

53 

40 

36 

27 

26 

330 

420 

65 

102 

78

Tons 

per 

day

2,810 

b5,700 

b 12, 000 

b 21, 000 

b 26, 000

b 23, 000 

b 15, 000 

8,850 

b7,400 

4,330

3,780 

4,800 

5,910 

6,380 

7,600

6,420 

5,960 

3,590 

1,940 

1,390

1,030 

834 

871 

3,500 

1,060

1,010 

903 

2,000 

3,200 

2,800 

2,890

193,958

277 

1,310 

974 

340 

166

185 

154 

145

98 

75

144 

146 

59 

40 

111 

85 

53 

40 

36 

32 

41 

74 

52 

45 

34 

30 

378 

501 

74 

132 

94

5,925

June

Mean

charge

(cfs)

4,450 

4,560 

5,030 

7,110 

6,560

6,170 

6,840 

8,390 

8,390 

8,680

9,280 

8,390 

7,670 

7,250 

7,250

7,670 

6,560 

5,520 

5,030 

5,030

5,150 

4,560 

4,120 

3,700 

3,390

3,190 

3,000 

2,730 

2,470 

2,560

170, 700

Suspended sediment

Mean 

concentration 

(ppm)

290 

300 

470 

1,110 

720

580 

1,360 

1,310 

800 

870

1,000 

810 

670 

470 

700

830 

550 

430 

500 

370

450 

260 

270 

260 

310

195 

280 

160 

270 

170

--

Tons 

per 

day

3,480 

3,690 

6,380 

21,300 

12,800

9,660 

25,100 

29,700 

18,100 

20,400

25,100 

18,300 

13,900 

9,200 

13,700

17,200 

9,740 

6,410 

6,790 

5,020

6,260 

3,200 

3,000 

2,600 

2,840

1,680 

2,270 

1,180 

1,800 

1,180

301,980

September

406 

370 

360 

335 

305

284 

272 

268 

260 

248 

236 

224 

204 

196 

180

170 

163 

166 

177 

173 

208 

350 

716 

716 

625 

514 

450 

420 

400 

375

9,771

45 

29 

30 

18 

35

40 

25 

23 

19 

25

16

35 

345 

1,000 

500 

195 

115 

126 

94 

54 

86

49

29 

16 

29

31 

18 

17 

13 

17

8

20 

326 

1,930 

967 

329 

160 

153 

107 

58 

87

4,465

Total discharge for year (cfs-days). 

Total load for year (tons)..........

471,497

1,036,339

s Computed by subdividing day.

b Computed from partly estimated concentration graph.
SAN JUAN RIVER BASIN Continued 

ANIMAS RIVER AT FARMINGTON, N. HEX. Continued

Particle-sise analyses of suspended sediment, water year October 1951 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 8, siev

W, in distilled water; C, chemically dispersed; M, mechanically dispe

Dnte 

of 

collection

Oct. 2, 1951.....

Feb. 14, 1952 ...

Mar. 30 .

Apr. 28 .........

Apr. 28 .........

Sept. 24 ........

Time

7:15 a. m. 

5:30 p. m. 

10:30 a. m. 

9:30 a. m. 

8:30 a.m. 

7:30 a. m. 

7:30 a. m.

9:10 a. m. 

8:00 a. m. 

5:15 p.m. 

5:15 p.m. 

5:15 p.m. 

5:15 p.m. 

2:00 p. m.

6:10 p.m. 

5:30 p. m. 

6:30 p. m. 

1:15 p.m. 

7:00 p. m. 

9:55 a. m. 

6:35 a.m. 

6:15 a.m.

Water 

discharge 

(cfs)

212 

991 

325 

345

700 

1,250 

1,250

1,450 

2,500 

4,730 

4,730 

4,730 

4,730 

3,080

4,500 

4,450 

9,340 

7,030 

5,320 

910 

430 

772

Water 

temperature 

CW

Suspended sediment

Concentration 

of sample 

(ppro)

4,160 

4,150 

477 

795 

1,950 

7,170 

7,170

1,550 

773 

6,600 

6,600 

6,600 

6,600 

3,150

400 

266 

912 

694 

280 

34 

842 

720

Concentration 

of suspension

analyzed 

(ppm)

1,520 

2,020 

2,920 

1,610 

3,380 

3,650 

3,560

2,500 

1,890 

3,420 

3,500 

2,880 

3,150 

3,540

376 

375 

3,070 

2,760 

820

1,590 

1,390

Percent finer than i

0.002

63 

60

18

40 

6

15 

19

66 

51

0.004

88 

55 

66 

87 

38 

77 

75

20 

24 

50 

31 

52 

19 

21

21 

28 

27 

6 

19

80 

64

0.008

92 

88

30

63

65

25 

33

87 

75

0.016

97 

79 

87 

88 

68 

97 

95

28 

38 

74 

65 

75 

74 

32

30 

39 

43 

17 

36

90 

83

0.031

97 

98

50

85 

83

42 

52

91 

87
SAM JUAN RIVER BASIN 133

SAM JUAN RIVER BASIN Continued 

SAM JOAN RIVER AT SHIPROCK, N. HEX.

LOCATION.--At gaging station on left bank 3 Miles west (revised) of Shiprock, San Juan

County, and 6 miles downstream from Chaco River. 

DRAINAGE AREA. 12,900 square miles approximately. 

RECORDS AVAILABLE. Water temperatures: December 1950 to September 1952.

Sediment records: December 1950 to September 1952.

EXTREMES, 1951-52. water temperatures: Maximum observed, 80*F Sept. 5, 6; minimum, 

freezing point on many days during November, December and January. 

Sediment concentrations: Maximum daily, 33,200 ppm Jan. 20: minimum daily 20 DM July 22

SAfi 1 WAV* * lsY4*4e UWv4«n« j4«.4 1« Qfin Ann A.___ a__j i A A _ __ j _ j_____ j_ j * _ »-* . _~S. _ . 1 -

 - « * *«« *»«* u Avua m»AA«KUJM ucKAAj , **** ( t, vv P£HK «I«U «w , U.U.LHUUB Uali.y . £\f OOm «IUi.Y Zj

Sediment loads: Maximum dally, 369,000 tons April 28; minimum daily, 31 tons Sept 11 

, 1950-52. Water temperatures: Maximum observed, 82*F July 2, 22, 1951;

minimum, freezing point on many days during winter months. 

Sediment concentrations: Maximum daily, 64,800 ppm Aug. 25, 1951; minimum daily, 8 

ppm July 13, 1951 « -*,, 3,

Sediment loads: Maximum daily, 578,000 tons Aug. 25, 1951. minimum daily, 5 tons 

Aug. 21, Sept. 12-24, 1951.

REMARKS. Flow affected by ice Nov. 16-19, Dec. 9-27, Jan. 9-11. Records of discharge 

for water year October 1951 to September 1952 given in WSP 1243.

Temperature (°F) of water, water year. October 1951 to September 1952 

/Once-daily temperature measurement, generally between 11 n. m. and 6 p. mj

Day

1

2

3

4

5

«

7

8

>

10

11

12

13

14

IS

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

_

65

72

_

b53

55

a 50

b62

n55

66

66

b62

b57

46

b59

53

59

63

61

n48

b52

55

56

55

53

n47

a 56

b49

--

57

Nov.

43

n37

b44

45

b46

48

48

44

n44

..

45

46

43

39

n32

n32

45

_

a39

44

b42

n37

40

40

39

~

~

Dec.

38

44

43

43

b40

35

32

b32

n32

32

32

32

32

35

b32

32

32

32

32

32

_

32

n32

32

32

32

32

32

32

a.32

n33

34

Jan.

32

32

32

32

32

a 32

32

32

32

32

32

32

34

32

34

35

35

35

35

n32

32

_.

35

35

40

n32

35

40

34

43

34

Feb.

40

_

._

45

45

40

40

38

43

._

_

_

40

40

_

_

40

45

43

43

n40

a 40

42

40

_

_

~

~

Mar.

n40

_

40

40

_

_

50

50

43

_

42

45

50

45

45

40

b40

40

45

n3S

40

45

47

50

52

..

54

51

52

Apr.

bSO

bSO

bSO

b52

53

n44

55

52

bSS

b52

48

b51

n42

_

bSS

50

55

_

56

a45

55

bSS

55

55

b45

b43

b48

55

n55

55

51

May

55

53

bSO

nSS

55

55

55

55

bSS

56

__

55

55

55

65

n55

51

_

65

65

65

56

bS9

62

b64

64

b64

66

66

a 55

60

58

June

n58

55

50

55

55

a 55

65

65

a 59

55

55

65

_

a 65

a 65

64

65

65

64

65

n59

64

66

64

68

68

n56

68

a65

71

62

July

72

65

74

68

_

66

_

n67

b65

65

_

b73

65

b74

75

75

75

75

68

74

73

75

~

_

79

b66

b65

b65

63

~

Aug.

b62

n58

b68

b61

74

a 74

a 76

n76

n72

n69

n70

n73

n73

n74

_

76

76

n70

78

_

a 72

76

b75

75

76

n66

_

Sept.

72

..

72

74

80

80

76

74

76

75

bTO

72

--

73

_

b64

72

62

62

64

64

64

64

70

70

_

--

n Observation made before 11 a. i 

b Observation made after 6 p. m.
134 COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER AT SHIPROCK, N. HEX. Continued 

Suspended sediment, water year October 1951 to September 1952

Day

2 ......

3 ......

6 ......

8 ......

19

20 

OQ

26 .... ..

5ft

29 ... 

31 ......

Total3 ......

13 

20 ------ 

21 

22 

23 

24 ----- - 

25 

26 . 

27 . 

28 

29 

30- - 

31 ......

Total

October

Mean

charge 

(cfs)

360 

430 

450 

460 

435

462 

479 

484 

462 

376 

367 

367 

336 

344 

336

344 

340 

395 

336

308

331 

344 

362 

331 

318

614 

1,160 

1,020 

857 

615 

700

14, 523

Suspended sediment

Mean 

concentration 

(ppm)

6,000 

1,800 

1,000 

2,000 

2,950

1,350 

900 

700 

368 

210 

290 

220 

110 

120 

130

180 

170 

132 

120 

110

118 

105 

128 

106 

65

13,900 

25,400 

19,300 

5,900 

4,600 

5,200

Tons 

per 

day

a 5, 830 

2,090 

1,220 

a 2, 480 

3,460

1,680 

1,160 

915 

459 

213

287 

218 

100 

111 

118

167 

156 

141 

a 109 

91

105 

98 

125 

95 

56

s 25, 700 

sa80, 500 

53,200 

13,700 

7,640 

a 9, 830

212,054

January

4,900 

1,630 

1,250 

997 

857

730 

615 

692 

680 

650

540 

671 

784 

988 

1,050

832 

840 

1,360 

1,560 

1,260 

934 

816 

792 

768 

808

874 

934 

808 

784 

722 

768

31,894

18,800 

6,600 

2,520 

1,250 

500 

260 

360 

950 

770 

350

120 

160 

200 

1,000 

20, 000

4,000 

3,500 

7,900 

12,700 

33,200 

19,400 

10, 200 

4,150 

1,800 

1,300

1,280 

560 

520 

680 

600 

500

--

s 270, 000 

29,000 

8,500 

3,360 

1,160

512 

598 

1,770 

1,410 

614 

175 

290 

423 

2,670 

56, 700

8,990 

7,940 

s 32, 100 

53,500 

113,000 

48,900 

a 22, 500 

8,870 

3,730 

a 2, 840

3,020 

1,410 

1,130 

1,440 

a 1,170 

at, 040

688,762

November

Mean

charge

(cfs)

510 

500 

500 

490 

457

440 

440 

462 

457 

452 

457 

446 

550 

496 

496

480 

435 

405 

390 

385

405 

435 

440 

514 

538

563 

556 

526 

526 

508

14, 259

Suspended sediment

Mean 

concentration 

(ppm)

3,800 

1,850 

625 

360 

385

400 

390 

310 

370 

270

370 

380 

1,180 

700 

1,350

2,680 

1,360 

1,040 

710 

680

1,060 

560 

580 

360 

220

230 

180 

150 

150 

150

--

Tons 

per 

day

a 5, 230 

a 2, 500 

844 

476 

475

475 

463 

387 

457 

330

457 

a458 

1,750 

937 

1,810

3,470 

1,600 

1,140 

a 748 

707

a 1,160 

658 

689 

500 

320

S50 

270 

213 

a 213 

a 206

29,293

February

745 

685 

664 

692 

692

692 

650 

650

657 

700

840 

979 

857 

784 

708

730 

671 

657 

685 

602 

622 

643 

636 

685 

622

582 

570 

582 

608

19,890

360 

350 

400 

500 

470

440 

420 

490 

420 

600

1,050 

1,350 

1,150 

1,200 

1,040

600 

500 

500 

550 

360 

310 

200 

200 

220 

250

280 

300 

300 

540

724 

a 647 

a717 

934 

878

822 

737 

860 

745 

a 1,130

a2,380 

a3,570 

a 2, 660 

2,540 

1,990

a 1,180 

a 906 

a 887 

1,020 

585 

521 

347 

343 

407 

a420

440 

462

a 471 

a 886

30, 209

December

Mean

charge

(cfs)

532 

582 

602 

643 

664

678 

608 

556 

550 

500

450 

360 

360 

390 

400

410 

420 

440 

440 

410

350 

360 

380 

450 

520

600 

640 

657 

657 

768 

1,620

16, 997

Suspended sediment

Mean 

concentration 

(ppm)

220 

270 

110 

170 

210

450 

530 

240 

280 

300

160 

140 

180 

200 

210

150 

170 

150 

260 

180

150 

120 

100 

130 

120

300 

320 

341 

U*y 

1,550 

10,200

...

Tons 

per 

day

316 

424 

179 

295 

376

824 

870 

360 

416 

405

a 194 

136 

175 

211 

227

166 

193 

178 

309 

199

a 142 

117 

103 

158 

168

486 

553 

603 

905 

3,210 

s 61, 100

73,998

March

715 

1,210 

832 

650 

600

608 

596 

629 

671 

1,240 

1,360 

1,310 

979 

857 

874

882 

1,940 

2,320 

1,840 

2,200 

1,950 

1,400 

1,140 

1,010 

961

1,150 

2,110 

2,810 

3,380 

3,410 

3,130

44,764

1,700 

11,500 

8,800 

4,000 

1,700 

2,000 

2,000 

1,900 

1,500 

12,000

13,500 

11,000 

5,040 

2,000 

2,600

1,800 

14,000 

29,000 

16,000 

13, 500 

11,300 

5,700 

3,600 2,500' 

1,700

4,000 

13,100 

18,300 

21,100 

21,900 

18,300

3,280 

a 37, 600 

19,800 

7,020 

a 2, 750 

a 3, 280 

a3,220 

3,230 

2,720 

a40,200

49,600 

a38,900 

13,300 

4,630 

6,140

4,290 

s 109, 000 

182,000 

79,500 

80,200 

59,500 

21,500 

11,100 

6,820 

4,410

12,400 

74,600 

a 139, 000 

193,000 

202,000 

155,000

1,569,990

s Computed by subdividing day.

a Computed from estimated concentration graph.
SAN JUAN RIVER BASIN 135

SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER AT SHIPROCK, N. HEX. Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

Day

^

4__. _ _

6 

8 

9 

10 

1«

14 

18 

20 

21 

23 

30 

31 

Totall

3 

5 

8 

10 

11 

18 

20 

21 

22 

S3 

34 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge

(cfs)

3,500 

3,600 

3,960 

4,450 

5,000

5,740 

6,500 

7,540 

8,440 

7,190

6,670 

6,160 

5,510 

5,670 

6,500

7,720 

7,900 

8,260 

8,630 

9,000 

9,570 

8,260 

8,440 

7,540 

7,540

8,260 

8,820 

10,500 

12,900 

9,570

219,340

Suspended sediment

Mean 

concentration 

(ppm)

16,800 

15,700 

15,700 

16,800 

15, 500 

12,800 

10,800 

11,700 

7,800 

2,800

5,000 

5,300 

1,100 

1,500 

3,600

2,700 

3,200 

4,700 

4,300 

3,000

2,200 

2,700 

3,300 

2,800 

4,500

4,500 

4,000 

13,000 

8,800 

5,500

Tons 

per 

day

159,000 

153,000 

168,000 

202,000 

209,000

198,000 

190,000 

238,000 

178,000 

54,400

90,000 

88,100 

16,400 

a 23, 000 

63,200

56,300 

68,300 

1105,000 

100,000 

a 72, 900

56,800 

60,200 

75,200 

57,000 

91,600

100,000 

a 95, 300 

369,000 

307,000 

142,000

3,786,700

July

5,200 

5,360 

5,200 

5,050 

5,050 

6,670 

7,720 

6,330 

5,200 

5,510

5,050 

4,480 

4,090 

3,390 

3,190

2,910 

2,650 

2,490 

2,270 

2,270

2,270 

2,070 

1,950 

1,840 

1,840 

1,900 

1,900 

2,010 

2,420 

2,820 

2,340

113,440

680 

400 

750 

760 

750 

1,650 

1,200 

950 

800 

1,200

1,100 

800 

700 

300 

160

140 

84 

68 

53 

72 

100 

20 

44 

35 

70 

250 

700 

2,800 

11,900 

12,500 

10,100

..

Total discharge for year (cfs 

Total load for year (tons) . .

9,550 

5,790 

a 10, 500 

10,400 

10, 200 

a 29, 700 

25,000 

a 16, 200 

a 11, 200 

a 17, 900

15,000 

9,680 

7,730 

2,750 

1,380

1,100 

458 

457 

325

441

613 

112 

232 

174 

348 

a 1,280 

3,590 

15,200 

77,800 

95,200 

63,800

444, 110

May

Mean

discharge

(cfs)

8,260 

8,080 

9,570 

11,700 

13,700

15,400 

16, 200 

14, 100 

13,300 

12,900

10,900 

10, 500 

11,300 

11,700 

12,500

13,700 

13,300 

10,900 

9,000 

7,700

7,360 

7,190 

6,840 

5,830 

5,360

5,510 

6,330 

6,840 

8..260 

9,380 

9,760

313,370

Suspended sediment

Mean 

concentration 

(ppm)

3,900 

3,300 

4,300 

3,500 

3,000

5,000 

2,900 

2,800 

2,400 

3,000

2,000 

2,000 

1,500 

1,500 

2,400

2,700 

2,400 

1,700 

1,600 

1,400

600 

600 

1,000 

1,050 

850

750 

700 

1,200 

950 

1,600 

1,150

August

2,070 

2,010 

2,200 

1,950 

1,730 

1,580 

1,440 

1,260 

1,140 

1,090

1,070 

1,140 

1,010 

975 

968

1,220 

1,180 

990 

915 

922

870 

1,580 

1,780 

1,530 

1,440 

1,260 

1,220 

1,180 

1,100 

1,100 

1,140

41,060

8,580 

8,400 

6,250 

1,800 

600 

460 

480 

280 

270 

500

320 

250 

200 

130 

120

380 

160 

80 

70 

81

100 

5,070 

5,300 

2,400 

1,200 

510 

780 

2,200 

820 

750 

800

..

Tons 

per 

day

87,000 

76,400 

111,000 

111,000 

111,000

208,000 

109,000 

107,000 

86,200 

104,000

a 58, 900 

56,700 

45,800 

47,400 

31,000

99,900 

86,200 

a 50, 000 

38,900 

29,100

11,900 

11,600 

18,500 

16,500 

12,300

11,200 

12,000 

22,200 

21,200 

40,500 

30,300

1,912,700

48,000 

45,600 

a 37, 100 

9,480 

2,800 

1,960 

1,870 

953 

831 

1,470

924 

770 

545 

342 

314

a 1,250 

510 

a 214 

a 173 

202

235 

s 23, 500 

a 25, 500 

a 9, 910 

4,670 

1,740 

2,570 

7,010 

2,440 

a 2, 230 

a 2, 460

237, 573

June

Mean

charge

(cfs)

10,500 

10,300 

10, 900 

16,000 

18,700

17,000 

16,600 

18,700 

19,200 

18,700

19,200 

19,600 

17,900 

15,800 

15,800

16,200 

16,600 

13,700 

12,500 

12,100

12,100 

11,300 

9,960 

8,820 

8,080

7,540 

7,070 

6,670 

5,510 

5,360

398,360

Suspended sediment

Mean 

concentration 

(PPm)

800 

1,300 

1,200 

3,800 

8,800

2,700 

1,200 

1,700 

3,250 

2,100

1,700 

1,800 

1,900 

700 

1,200

2,350 

1,000 

1,000 

1,550 

1,850

1,800 

1,050 

1,100

1,950 

600

450 

1,900 

1,800 

350 

750

Tons 

per 

day

22,700 

36,200 

35,300 

164,000 

343,000

124,000 

53,800 

85,800 

168,000 

106,000

88,100 

95,300 

a 91, 800 

29,900 

51,200

103,000 

44,800 

37,000 

52,300 

60,400

58,800 

32,000 

29,600 

46,400 

13,100

9,160 

36,300 

32,400 

5,210 

10,900

2,066,470

September

938 

840 

780 

706 

671 

636 

580 

559 

517 

497

438 

412 

393 

432 

531 

504 

478 

484 

490 

517

497 

892 

1,780 

1,840 

1,580 

1,310 

1,100 

1,040 

982 

930

23,354

300 

200 

120 

60 

31 

52 

40 

30 

26 

26

26 

40 

40 

50 

150

70 

280 

1,560 

830 

230

200 

4,270 

18,200 

5,500 

500 

350 

240 

170 

120 

90

............................................................... 1

760 

a454 

253 

114 

56 

89 

a 63 

45 

36 

35

31 

44 

42 

a 58 

a 215

95 

a361 

2,040 

1,100 

321

268 

s 13, 100 

87,500 

27,300 

a2,130 

1,240 

713 

477 

a318 

226

139,484

1,251,251 

1,191,343

s Computed by subdividing day.

a Computed from estimated concentration graph.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER AT SHIPROCK, N. HEX.--Continued

Particle-size analyses of suspended sediment, water year October 1951 to Sep

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, siev

W, in distilled water; C, chemically dispersed; M, mechanically dispe

Date 

of 

collection

Oct. 9, 1951..... 

Oct 28

Oct 28

Oct 28

Jan. 3, 1952 ....

Jan. 20 .........

Feb. 14 .........

Mar. 11.........

Apr. 5 ..........

Apr. 11

Apr. 11.........

Apr. 11 .........

Apr. 29 4 . .......

May 20..........

June 11. .........

Time

9:30 a. m. 

840 a.m. 

840 a. m. 

8:40 a.m. 

5:00 p.m.

5:30 p.m. 

5:00 p. m. 

7:00 a. m. 

7:00 a. m. 

7:00 a. m.

9:30 a.m. 

5:30 p.m. 

5:30 p. m. 

5:30 p. m. 

5:30 p. m. 

3:15 p.m.

645 p.m. 

6:20 p. m. 

1140a.m. 

11:40 a. m. 

1140a.m. 

1140a.m. 

10:30 a. m.

5:25 p. m. 

3:20 p. m. 

9:00" a.m.

Water 

discharge 

(cfz)

457 

979 

979 

979 

470

1,220 

1,020 

1,330 

1,330 

1,330

776 

1,170 

1,170 

1,170 

3,380 

5,000

4,630 

5,930 

6,330 

6,330 

6,330 

6,330 

13,300

15,400 

7,190 

20.000

Water 

temperature 

CF)

Suspended sediment

Concentration 

of sample 

(ppm)

329 

19,800 

19,800 

19,800 

2,780

2,790 

20,700 

36,300 

36,300 

36,300

1,100 

13,100 

13, 100 

13,100 

25,700 

25,900

15,800 

15,000 

4,310 

4,310 

4,310 

4,310 

6,090

1,930 

1,330 

20.000

Concentration 

of suspension 

analysed 

(ppm)

506 

4,040 

4,100 

3,960 

2,440

2,130 

4,260 

3,390 

3,800 

3,230

1,550 

2,960 

2,920 

3,140 

4,190 

5,920

4,580 

2,620 

1,640 

1,840 

1,350 

1,560 

3,660

2,160

0.002

27 

61 

1 

64

52 

3 

47

49 

6 

48

15 

10 

18 

10

19

0.004

34 

78 

4 

78 

89

76 

78 

73 

10 

58

59 

61 

16 

60 

40 

39

31 

28 

21 

15 

22 

15 

35

27

Percent finer than In

0.006

43 

86 

9 

87

85 

31 

76

69 

56 

71

26 

23 

28 

28

34

0.016

50 

91 

87 

94 

93

90 

91 

95 

95 

91

73 

79 

82 

82 

57 

52

44 

41 

32 

28 

32 

29 

52

40

0.031

60 

95 

96 

97

97 

96 

99

89 

90 

89

44 

40 

39 

37

50
June IS, 1952... 

June IS.........

July 27 .........

Aw 6

Aug 22,

StDi. 22 . .

Sept. 23........

94Sa.ni.

4:30 p. m.

IS, 800

12,900

1 &4O

2,910

1,530

2,270

2,070

1,420 

1 420

1,940

1,470

19 ftnn

7 290

20.600

3,240 

3,390

1,110

3,480

3,840

1,420

4,240

4,160

"4

IS 

127

70

75

36

71

71

-8

mm

_ ~

25

23

12

88

88

87

48

82

92

90

--

17

__

__«
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH

LOCATION.-^At bridge on State Highway 47, 1,800 feet downstream from gaging station and 20 miles southwest 

DRAINAGE AREA. 23,000 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: February to June 1927, October 1929 to September 1952.

Water temperatures: May 1944 to September 1952.

Sedimsnt records: August to September 1928, July 1929 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,220 ppm Dec. 16-20; minimum, .152 ppm June 11-20.

Hardness: Maximum, 622 ppm Dec. 16-20; minimum, 104 ppm June 11-20.

Specific conductance: Maximum daily, 1,620 micromhos Dec. 19; minimum daily, 208 micromhos June 17.

Water temperatures: Maximum observed, 81°F July 18, Aug. 2; minimum observed, freezing point on several 

Sediment concentrations: Maximum daily, 118,000 ppm Sept. 22; minimum daily, not determined.

Sediment loads: Maximum daily, 976,000 tons Sept. 22; minimum daily not determined. 

EXTREMES, 1929-52. Dissolved solids: Maximum 1,860 ppm July 21-31, 1934; minimum, 152 ppm June 11-20, 19

Hardness: Maximum, 874 ppm July 21-31, 1934; minimum, 104 ppm June 11-20, 1952. __

- conductance (1941-52): Maximum daily, 2,070 micromhos Aug. 26, 1943; minimum daily, 208 microm

Salt'Lake City, Utah. Records°of'discharge for water~year October 1951 to September 1952 given in WSP 

Chemical analyses, in parts per million, December 1951 to September 19

Date of collection

Dec. 16-20, 1951 . 

Dec. 21-31.......

Jan. 1-10, 1932...

Jan. 21-31. .......

Feb. 11-20 .......

Mar. 1-10........

Mar. 11-20.......

Mar. 21-31.......

Apr. 1-10 ........

Apr. 11-20 .......

Apr. 21-30 .......

May 1-10 ........

May 11-20........

May 21-31........

Mean 

discharge 

(cfs)

243

776 

1,356 

1,924 

1,050

718 

742 

640 

796 

1,318 

2,059

6,007 

7,284 

9,521 

12, 100 

11,510 

6.836

Silica 

(SiO.)

17 

15 

13 

14 

14

13 

12 

11 

12 

13 

12

12 

11 

11 

10 

13 

12

Iron 

(Fe)

0.03 

.04 

.05 

.04 

.03

.04 

.04 

.04 

.05 

.03 

.03

.03 

.02 

.02 

.02 

.03 

.03

Calcium 

(Ca)

170 

133 

110 

114 

122

122 

118 

117 

122 

115 

102

73 

50 

46 

43 

46 

44

Magnesium 

(Mg)

48 

36 

31 

31 

30

37 

34 

36 

37 

33 

26

19 

12 

8.6 

10 

7.6 

8.1

Sodium 

(Na)

Potassium 

(K)

148 3. 2 

120 3.0 

101 3. 6 

109 

124

109 

108 

102 

114 

102 

79

41 

27 

29 

19 

10 

14

Bicarbonate 

(HCO.)

250 

222 

184 

215 

203

209 

195 

200 

196 

218 

208

176 

144 

120 

120 

132 

114

Sulfate 

(SO.)

631 

484 

416 

418

467

456 

445 

436 

479 

407 

315

174 

97 

93 

78 

52 

70

Chloride 

(Cl)

44 

36 

24 

24 

27

31 

29 

29 

29 

26 

20

13 

7.5 

9.5 

5.5 

3.3 

4.6

Fluorlde 

(F)

0.4 

.6 

.5 

.3 

.3

.3 

.3 

.3 

.3 

.4 

.4

.4 

.4 

.4 

.4 

.3 

.3

Nitrate 

(NO,)

5.1 

4.1 

5.1 

4.9 

7.4

5.0 

4.7 

3.4 

4.7 

7.0 

6.7

5.5 

4.6 

3.5 

2.4 

1.3 

1.3

Boron 

(B)

0.12 

.06

Disso

(residu

Parts 

per 

million

1,220 

961 

811 

844 

917

912 

875 

869 

929 

823 

673

428 

278 

260 

228 

206 

218

T

a
June 1-10, 1952... 

June 11-20

June 21-30. .......

Ally 1-6, 9-10 .... 

July 7-8..........

Aug. 1-2 .........

Aug. 11-20 .......

Aug. 21-22, 25-31 

Aug. 23-24 .......

Sept. 1-10........

Sept. 21-25.......

Weighted average

14,730

5,358 

7,345

3,547

2,280

,027

,185 

,410

774

456

,860

,368

b4,262

13

14 

16

20

16

15

16

12

.04 

.08

.03

.03

.07

0.04

44

32

40

44 

68

52

95

68

77K

122

86

65

7.3 5 0

8.3 

13

16

18

15

20

20

00

12

138

H

21

27

25

40

56

56

tJR

62

30

125

115 

159

161

163 

201

239

134

56

83 

134

139

230

QAQ

262

121

3.2 2 e

5.5 

7.0

12

16

14 

12

24

8.1

.3

.3

.3

.2

.4

0.3

1.2

.8 

1.7

1.9

1.4

1.6

2.3

--""-

205

1 R9

237 

a 345

338

a728

a661

ana

511

312

a Sum of detarmined constituents.

b RepresentB 98 percent of runoff for water year October 1951 to September 1952.
140 COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH. Continued 

^emperature (°F) of water, water year October 1951 to September 1952

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

J4

15

16

17

18

19

20

21

33

23

24

25

26

27

28

29

30

31

Average

Oct. NOT. Dec.

_

_

_

_

~

_

 _

_

_

_

-_

33

33

32

32

32

32

32

33

33

34

34

34

34

36

34

Jan.

34

34

_

33

33

33

33

_

32

--

_

32

34

33

..

33

35

36

37

37

34

34

34

36

39

39

39

38

38

39

35

Feb.

39

38

39

39

39

37

39

38

40

40

42

_

38

38

36

39

38

39

35

36

38

40

42

40

37

36

43

39

47

39

Mar.

39

41

39

40

45

41

44

46

49

45

40

37

39

36

41

42

42

42

41

41

36

35

34

37

42

46

46

49

51

50

49

42

Apr.

52

47

54

49

56

46

59

51

53

50

46

55

51

56

52

53

54

56

57

54

53

55

56

62

61

59

60

56

59

53

54

May

56

59

62

__

64

65

67

57

58

57

58

63

69

62

56

57

55

59

62

59

57

58

59

62

66

64

64

66

67

64

61

June

63

61

58

59

64

65

65

68

69

66

65

67

65

65

64

63

64

66

67

65

63

67

66

67

65

66

_

68

69

65

July

72

69

72

73

72

70

70

72

72

72

_

73

71

70

72

72

73

81

76

79

75

75

71

78

78

78

79

74

74

73

74

74

lag.

75

81

77

76

77

78

80

78

77

78

75

77

74

75

73

76

74

80

76

73

74

75

75

74

73

75

71

71

72

71

69

75

Sept.

70

72

69

71

73

75

74

71

70

67

67

60

64

63

67

66

66

65

63

63

62

64

66

65

65

64

65

65

66

~

67
SAN JUAN RIVER BASIN 141

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Suspended sediment, water year October 1951 to September 1952

Day

j__ _ ___

4_«.«__ 

S 

e 

8 

10 

jj _ __ _

is 

14 

15 

18 

20 

28 

2» 

SI 

Total5 

7___-_» 

8 

10 

14 

18 

It 

20 

21 

22 _ - _ 

2s _ ____ 

24 .--- 

2S- - 

2j» _ ___ 

2? 

20*..*. 

Sft.. - _ ..

SO**-* " 

21 

Total

Mean

discharge

(cfs)

2, OK 

SIX 

591 

47( 

451

437 

40S 

423 

451 

451

437 

386 

391 

373 

368 

373 

360 

369 

360 

378

370 

360 

350 

319 

352

364 

1,200 

1,150 

1,080 

846 

1,100

17,752

October

Suspended sediment

Mean 

concentration 

(ppm)

147 

121

120

310 

108 

81 

66 

68

61 

32

70

_

January

3,010 

3,110 

1,660 

1,240 

1,000

840 

738 

612 

679 

674 

617 

505 

495 

1,060 

1,180

1,400 

1,330 

2,380 

6,980 

3,300 

1,«30 

1,180 

970 

858 

949

1,240 

1,220 

1,040 

894 

786 

780

44,347

30,300 

22,000 

11,600 

7,100 

4,600

2,750 

2,200 

,600 

,500 

,200 

,100 

,010 

690 

2,430 

3,990

10,000 

10,100 

16,700 

35,500 

27,000 

M,K» 

27,600 

17,500 

11,300 

9,700 

11,500 

10,900 

7,800 

5,400 

4,100 

5,100

Tons 

P*r 

day

173 

134

14C 

377

127 

84 

70 

68

61 

31

68

b 370, 000

s 252, 000 

s 199, 000 

52,000 

23,800 

12,400

6,240 

a 4, 400 

2,840 

a 2, 700 

a 2, 200 

a 1,800 

1,380 

922 

s8,290 

813,800

a 38, 000 

36,000 

s 158,000 

8736,000 

a 240, 000 

97,700 

87,900 

45,800 

28,200 

24,900 

38,500 

35,900 

21,900 

13,000 

8,700 

10,700

2,200,572

Mean

charge 

(cfs)

1,960 

864 

662 

662 

645

623 

552 

547 

574 

516

505 

536 

547 

876 

628 

601 

601 

579 

563 

520

495 

495 

576 

720 

708

617 

617 

634 

601 

536

19,563

November

Suspended sediment

Mean 

concentration 

(ppm)

Tons 

P*r 

day

b 390, 000

February

750 

738 

744 

726 

656

858 

697 

679 

874 

656 

685 

756 

878 

840 

780

714 

691 

885 

708 

685 

W2 

640 

656 

879 

679

645 

612 

595 

590

20,358

3,770 

3,630 

3,740 

3,100 

2,550

4,190 

2,710 

2,970 

2,550 

2,390 

2,250 

2,770 

3,560 

3,000 

2,680

2,180 

2,580 

2,820 

2,790 

2,110 

2,190 

2,030 

2,140 

2,620 

1,950

2,010 

1,920 

2,250 

1,570

,630 

,230 

,510 

,080 

,520

9,710 

6,000 

5,440 

4,640 

4,230 

4,160 

5,650 

8,420 

a 6, 600 

5,640

4,200 

4,810 

5,220 

5,330 

3,900 

3,910 

3,510 

3,790 

4,800 

3,570 

3,500 

3,190 

3,610 

2,500

149,500

Mean

charge

<cfs)

542 

563 

634 

679 

810

1,180 

656 

628 

563 

466

380 

330 

280 

237 

307 

211 

228 

244 

266 

266

230 

200 

190 

192 

199

364 

461 

584 

634 

1,480 

4,000

18,004

December

Suspended sediment

Mean

COtJCdi**

tratlon 

(ppm)

3,000 

2,500

1,700 

1,400 

1,200 

1,000

748 

1,040 

1,250 

1,710 

1,510

1,290 

530 

553 

255 

230

1,750 

2,790 

2,100 

2,460 

10,200 

30,000

Tons 

per 

day

5,090 

3,800

1,740 

1,250 

907 

640

426 

640 

824 

1,230 

1,080

801 

286 

284 

132 

124

1,720 

3,470 

3,310 

4,210 

s 42, 800 

8351,000

b 510, 000

March

557 

750 

1,270 

1,050 

822

720 

640 

662 

674 

816 

1,250 

1,460 

1,340 

1,070 

921

870 

998 

1,800 

1,780 

1,890 

1,920 

1,800 

1,410 

1,200 

1,010

970 

1,140 

2,190 

2,600 

4,070 

4,140

43,790

1,870 

3,500 

10,800 

8,500 

11,900

9,100 

4,600 

3,400 

4,600 

5,250 

10,200 

12,900 

14,300 

12,400 

9,100

5,700 

6,050 

14,700 

20,100 

25,600 

19,200 

14,900 

10,700 

7,470 

4,900

4,160 

5,100 

17,400 

19,700 

39,500 

30,000

~

2,810 

7,090 

s 40, 500 

24,100 

28,400

17,700 

7,950 

6,080 

8,370 

11,600 

s 3V ,700 

s 52, 100 

51,700 

35,800 

22,600

13,400 

16,300 

E81,M» 

96,600 

117,000 

99,500 

72,400 

40,700 

24,200 

13,400 

10,900 

15,700 

E 106, 000 

8158,000 

8490,000 

335,000

2,043,560

s Computed by subdividing day.

a Computed from estimated concentration graph.

b Includes loads for mtmring days, computed from water-sediment discharge curves.
142 COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

Day

1 

2 ......

3*_.._.

4 ......

5 ......

6 ......

7 

------

9 . 

10 

11 

12 . 

13 ......

14 ......

15 .

16 

17... 

1ft io------ 

19 

20 

21 

99^£ _- .-

------ 

94*4-- * 

25*-----

26 

27 

«o---- OQ

29 ......

so ......

Si ......

Total1 ......

2 ......

3 ...

4 ......

S 

6 ...

7 ...-_.

g ____

9 ------

10 

11 ......

12 

IS 

14 .....

15 .....

16 -----

17 

18 

18 .....

20 

21 ..... 

22 

23 ... 

34 

25 -----

26 ~ 

27 

26 -----

2» 

30 

Si 

Total

April

Mean

discharge

(cfs)

4,440 

4,740 

4,830 

4,940 

5,310

5,630 

6,290 

7,350 

8,110 

8,430

7,540 

6,960 

6,220 

5,390 

5,680

6,780 

7,900 

8,230 

8,950 

9,190

9,530 

9,860 

8,910 

8,670 

7,770 

8,010 

8,670 

9,170 

11,800 

12,800

228,120

Suspended sediment

Mean 

concentration 

(ppm)

30,100 

27,300 

24,500 

22,200 

21,600

21,300 

20,700 

18,500 

17,000 

14,800

11,900 

9,100 

8,820 

7,480 

8,210

9,520 

11,000 

9,920 

10,600 

9,720

9,300 

9,400 

7,360 

6,200 

5,580

5,580 

7,170 

6,800 

10,600 

13,300

Tons 

per 

day

361,000 

349,000 

320,000 

296,000 

310,000

324,000 

352,000 

367,000 

372,000 

337,000

242,000 

171,000 

148,000 

109,000 

126,000

174,000 

235,000 

220,000 

256,000 

241,000

239,000 

251,000 

177,000 

145,000 

117,000

121,000 

168,000 

168,000 

338,000 

460,000

7,494,000

July

5,290 

5,160 

5,190 

4,830 

4,670 

5,700 

7,270 

7,420 

6,240 

5,780

5,820 

4,900 

4,340 

3,980 

3,660 

3,270 

2,970 

2,670 

2,450 

2,300 

2,220 

2,160 

2,010 

1,940 

1,740

1,730 

1,790 

1,910 

4,010 

a, 330 

3,300

120,050

1,290 

1,570 

1,690 

1,630 

1,440

5,860 

12,400 

7,690 

4,070 

4,350

5,400 

5,780 

3,100 

2,000 

1,760 

1,500 

1,200 

2,770 

1,350 

900

1,150 

1,050 

1,290 

948 

909 

1,180 

1,440 

1,850 

9,780 

30,300 

31,100

18,400 

21,900 

23,700 

21,300 

18,200 

s 91, 80S 

244,000 

154,000 

68,600 

67,900 

84,900 

76,500 

38,300 

21,500 

17,400 

13,200 

9,620 

20,000 

8,930 

5,590

6,890 

6,120 

7,000 

4,970 

4,270 

5,510 

6,960 

9,540 

8140,000 

3286,000 

277,000

1,778,000

May

Mean

discharge

(cfs)

9,590 

8,330 

8,510 

10,300 

12,500

14,500 

16,000 

15,400 

13,600 

12,300

11,900 

10,700 

10,700 

11,100 

12,000

13,000 

13,900 

12,900 

10,700 

8,230

7,460 

7,200 

7,140 

6,510 

5,630

5,160 

5,560 

6,400 

6,960 

8,030 

9,130

311,360

Suspended sediment

Mean 

concentration 

(ppm)

7,590 

5,670 

5,200 

6,120 

6,930

8,140 

9,900 

8,200 

6,430 

6,030

5,560 

4,670 

4,600 

4,990 

5,900

7,400 

7,000 

5,360 

4,780 

3,300

2,960 

3,280 

3,520 

3,400 

2,470

2,100 

2,590 

3,620 

4,050 

4,500 

4,480

August

2,420 

2,140 

2,040 

2,150 

2,070

1,770 

1,610 

1,480 

1,370 

1,180

1,080 

1,100 

1,030 

1,080 

977 

928 

984 

1,150 

1,030 

907

786 

888 

1,030 

1,790 

1,550 

1,440 

1,410 

1,170 

1,220 

1,120 

1,080

41,980

26,500 

17,000 

6,250 

6,250 

5,600 

3,170 

2,500 

1,950 

1,980 

1,720 

2,200 

1,600 

1,600 

1,480 

1,400 

1,250 

1,800 

3,040 

1,790 

1,400

1,810 

1,790 

13,700 

8,300 

9,200 

6,400 

7,900 

4,800 

4,300 

6,220 

6,820

Tons 

per 

day

197,000 

128,000 

119,000 

170,000 

234,000

319,000 

428,000 

341,000 

236,000 

201,000

179,000 

135,000 

133,000 

150,000 

191,000

260,000 

263,000 

187,000 

138,000 

73,300

59,600 

63,800 

67,900 

59,800 

37,500 

29,300 

39,000 

62,600 

76,100 

97,600 

110,000

4,785,500

173,000 

98,200 

34,400 

36,300 

31,300

15,100 

10,900 

7,790 

7,320 

5,480 

6,420 

4,750 

4,450 

4,320 

3,690 

3,130 

4,780 

9,440 

4,980 

3,430

3,840 

4,290 

s 35, 600 

40,100 

38,500 

24,900 

30,100 

15,200 

14,200 

18,800 

19,900

714,610

June

Mean

discharge

(els)

9,490 

10,400 

10,800 

11,700 

18,200

18,200 

15,900 

16,500 

18,000 

18,100

18,200 

18,600 

18,400 

16,800 

15,400

15,000 

15,800 

14,800 

12,700 

11,900

11,700 

11,600 

10,200 

8,850 

8,090 

7,370 

7,010 

6,620 

6,110 

5,380

387,820

Suspended sediment

Mean 

concentration 

(ppm)

4.200 

4,030 

4,200 

5,000 

8,210

7,940 

5,440 

6,230 

5,900 

5,580

6,050 

5,800 

4,750 

4,980 

4,700

4,780 

5,180 

4,980 

3,810 

3,580 

3,600 

3,810 

3,720 

3,290 

2,800 

2,310 

2,950 

1,970 

1,840 

1,890

--

Tons 

per 

day

108,000 

113,000 

122,000 

158,000 

403,000

390,000 

234,000 

278,000 

267,000 

273,000

297,000 

a 290, 000 

236,000 

226,000 

195,000

194,000 

221,000 

199,000 

131,000 

115,000

114,000 

119,000 

102,000 

78,600 

61,200 

46,000 

55,800 

35,200 

30,400 

27,500

5,139,700

September

1,120 

1,020 

921 

816 

738

702 

656 

623 

579 

563

526 

456 

413 

395 

391 

413 

510 

505 

461 

490

1,110 

2,380 

2,020 

1,880 

1,910

1,710 

1,560 

1,350 

1,190 

1,030

28,438

3,900 

2,320 

1,780 

1,270 

1,130

1,100 

962 

829 

1,010 

780

630 

800 

400 

235 

400 

250 

1,400 

360 

190 

410

18,600 

118,000 

113,000 

36,800 

33,500 

18,500 

12,200 

8,730 

8,310 

5,000

11,600 

6,390 

4,430 

2,800 

2,250 

2,080 

1,700 

1,390 

1,580 

1,190

895 

985 

446 

251 

422 

279 

1,930 

491 

236 

542

55,700 

s 976, 000 

s 754, 000 

187,000 

173,000

85,400 

51,400 

31,800 

26,700 

13,900

2,399,987

Total discharge for year (cfs-days) . 

Total load for year (tons) ... .^ ,_^..

1,281,580

27,972,369

s Computed by subdividing day.

n Computed from estimated concentration graph.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Particle-size analyses of suspended sediment, water year October 1951 to Se

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; 8, siev

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Nov. 4, 1951.... 

Nov. 14 ........

Nov. 14 ........

Dec 18

Jan. 14, 1952 . . . 

Jan. 19 ........

Jan. 22 ........

Jan. 31 ........

Mar 3

Mar. 13 ........

Mar. 13 ........

Mar. 29 ........

Apr, 18 ........

May 9 ..........

July t ..........

July 30 .........

Sept. 24 ........

Time

8:00 a. m. 

11:00 a.m. 

11:00 a. m. 

3:45 p. m. 

1:30 p.m. 

2:00 p. m. 

11:10 a.m. 

3:00 p.m. 

11:00 a.m.

4:00 p. m, 

11:45 a. m. 

11:45 a. m. 

9:15 a. m. 

9:25 a. m. 

9:15 a.m.

9:15 a.m. 

8:35 a. m. 

10:05 a.m. 

8:30 a. m. 

10:45 a. m. 

10:15 a. m. 

9:05 a. m.

Water

discharge 

(cfs)

662 

1,080 

1,080 

327 

1,580 

1,600 

7,310 

1,110 

900

1,360 

1,400 

1,400 

1,980 

7,460 

13,400

13,500 

5,210 

5,220 

7,500 

4,270 

1,150 

2,030

Water 

temperature 

CF)

Suspended sediment

Concentration 

of sample 

(ppm)

1,360 

50, 100 

50,100 

1,250 

11,400 

4,400 

33,800 

28,900 

5,020

13,000 

14,900 

14,900 

10,600 

9,420 

13,700

6,330 

1,930 

1,580 

6,840 

32,900 

3,710 

.41,400

Concentration 

of suspension 

analyzed 

(ppm)

949 

3,800 

3,320

4,510 

2,930 

4,790 

3,680 

3,170

5,610 

3,750 

4,140 

5,120 

3,410 

4,470

3,710

4,430 

4,020 

5,330 

2,930

Percent finer than 

0.002

53 

49 

49

47

--

0.004

65 

65 

61

23 

25 

34 

61 

20

22

59 

57 

40 

14 

29

13

43 

50 

51 

25

0.008

79 

75 

75

68

"

0.016

85 

86 

84

31 

31 

47 

71 

27

35 

78 

77 

59 

19 

43

21

54 

72 

64 

33

0.031

91 

94 

93

81

--
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, A HIZ.

LOCATION. At gaging station at head of Marble Gorge at Lees Ferry, Coconino County, just upstream from P

State line, 61.5 miles upstream from Little Colorado River, and 79 miles downstream from San Juan River

DRAINAGE AREA. 107,900 square miles approximately.

RECORDS AVAILABLE. Chemical analyses: January to July 1926, October 1926 to June 1947, October 1928 to 

1947 to September 1952.

Water temperatures: July 1949 to September 1952.

Sediment records: October 1928 to December 1933, November 1942 to September 1944, October 1947 to Sept

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,140 ppm Oct. 1-10, Dec. 21-31; minimum, 236 ppm June 11

Hardness: Maximum, 586 ppm Oct. 1-10; minimum, 150 ppm June 11-20.

Specific conductance: Maximum observed, 2,010 micromhos Sept. 26; minimum observed 339 micromhos June 

Water temperatures: Maximum observed, 84'F Aug. 3; minimum, freezing point on several days during Decem

Sediment concentrations: Maximum daily. 25,200 ppm Sept. 25; minimum daily, 515 ppm Dec. 17.

Sediment loads: Maximum daily, 1,990,000 tons May 7; minimum daily, 4,140 tons Dec. 17. 

EXTREMES, 1928-30, 42-45, 47-52 Dissolved solids: Maximum. 1,410 ppm Oct. 11-20, 1928; minimum 209 ppm J

Hardness: Maximum, 720 ppm Oct. 11-20, 1928; minimum, 132 ppm June 11-20, 1944.

Specific conductance (1947-52): Maximum observed, 2,280 micromhos Oct. 15, 1945; minimum observed, 318 

Water temperatures (1949-52): Maximum observed, 84*F Aug. 3, 1952; minimum, freezing point on many days 

Sediment concentrations (1928-33, 1942-44, 1947-52): Maximum daily, 83,300 ppm Aug. 11, 1930; minimum d

Sediment loads (1928-33, 1942-44, 1947-52): Maximum daily, 9,450,000 tons Aug. 7, 1929; minimum daily, 

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific c

office at Albuquerque, N. Mex. Records of discharge for water year October 1951 to September 1952 give

Chemical analyses, in parts per million, water year October 1951 to Septem

Oat* of collection

Oct. 1-10, 1051 . . 

Oct 11-20 .

Nov. 1-10 .......

Nov. 11-20'......

Nov 21-30 .....

Dec 1-10 .....

Dec 11-20

Dec 21-31 .....

Jan. 1-10, 1952..

Feb. 11-20 ......

Feb. 21-20 ......

Mean

discharge 

(cfs)

6,133 

6,998 

6,949 

8,690 

7,024 

6,723

6,636 

4,221 

5,412 

8,425 

6,345 

8,390

6,991 

6,566 

6.182

Silica 

(310.)

13 

15 

13 

13 

14 

15

15 

15 

15 

12 

13 

14

12 

13 

13

Iron 

(Fe)

0.02 

.02 

.01 

.01

.01

.01 

.01 

.01 

.01 

.02 

.01

.01 

.01 

.01

Calcium 

(Cs)

154 

138 

134 

147 

132 

113

98 

117 

124 

105 

117 

110

108 

111 

110

Magnesium 

(Mg)

49 

49 

47 

47 

49 

45

53 

51 

54 

39 

42 

36

38 

42 

43

Sodium 

(Na)

147 

140 

148 

146 

134 

133

154 

154 

179 

119 

152 

130

129 

136 

142

Potassium 

(K)

5.0 

3.0 

2.6 

4.0 

3.4 

6.8

8.4 

6.2 

5.6 

7.4 

6.8 

5.6

6.4 

7.0 

10

Bicarbonate 

(HCO.)

227 

224 

217 

221 

235 

219

226 

b234 

c266 

208 

231 

217

203 

216 

219

Sulfate 

(80.)

564 

509 

504 

555 

471 

439

461 

451 

491 

381 

435 

369

394 

407 

410

Chloride 

(Cl)

92 

99 

98 

82 

94 

95

105 

116 

134 

92 

101 

100

100 

111 

113

Fluoride 

(F)

0.4 

.4 

.4 

.4 

.4 

.3

.3 

.3 

.4 

.2 

.3 

.3

.3 

.3 

.3

Nitrate 

(NO,)

3.0 

4.3 

3.5 

3.6 

5.2 

3.0

4.0 

2.9 

4.2

7.4 

.3 

.9

.1 

.0 

.0

Boron 

(B)

0.2 

.2 

.2 

.2 

.3 

(a)

(a) 

(a) 

(a) 

(a) 

a) 

(a)

(a) 

(a) 

(a)

Dis

r Parts 

per 

million

,140 

,070 

,060 

,110 

,020 

958

,010 

,030 

,140 

865 

985 

877

892 

937 

953

a Reported boron concentration is less than . 1.

b Includes equivalent of 6 parts per million of Carbonate (CO^).

c Includes equivalent of 9 parts per million of Carbonate (CO,).
Mar. 1-10, 1952...

Mar. 21-31.......

May 1-10

May 11-20

May 2 1-31 .......

June 1-10.........

June 21-30 .......

July 11-20 ........

July 21-31 ........

Aug. 1-10 ........

Aug. 11-20 .......

Aug. 21-31........

Sept 1-10

Sept. 21-30 .......

Weighted average .

6,267 7

Q&A

19,260

59,310

88,330

64,650

90,430

11,200

60,130

24,610

12,970

12,540

11,230

9,030

24,740

15 

14

14

14

12

15

13

15

10

14

13

.03 

.02

.03

.03

.04

.02

.02

.02

.03

.06

.06

.32

.02

.01

.01

.01

.01

.02

0.04

112 

118

110

100

59

54

46

52

44

67

74

112

19P

no

149

68

45

43

41

34

18

16

13

15

9.9

15

19

«4

29

33

40

44

21

151 

151

144

121

48

22

25

35

104

119

120

143

57

5.5 

5.2

5.2

5.7

8 

H

3.0

.0

5.8

6.7

6.8

4.2

230 

229

219

216

206

158

150

141

141

163

168

178

187

197

201

230

211

210

174

409 

425

356

269

146

107

75

65

114

212

317

352

385

ftQ4

540

180

117 

112

98

70

24

12

10

14

19

63

66

66

78

88

34

.3 

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.4

0.3

5.2 3 Q

4.1

1.7

1.6

1.6

1.7

1.3

1.3

1.0

1.0

1.2

1.8

3.8

4.1

4.5

3.9

4.5

1.9

.16

.16

.11

.17

.09

.10

.04

.07

.10

.13

.18

.18

.22

.20

..

973 

985

934

809

633

330

266

299

236

«JA

532

720

782

829

QQ4

867

1.JJ90

465
146 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM -Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Temperature ("F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement, generally prior to 11 a. mj

Day

1

2

3

4

5

6

7

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

Oct.

67

66

67

61

61

62

62

60

59

60

61

62

60

58

56

58

57

57

58

56

54

54

53

55

52

a 56

55

53

52

52

58

Nov.

53

49

46

47

46

46

45

a45

a46

a46

a48

a49

a47

46

47

43

a43

41

a41

40

41

41

a41

a42

a 42

a 39

a40

40

a 40

40

44

Dec.

41

41

41

40

a42

a40

a39

a37

a35

a35

a35

a 33

a 33

a 34

34

a 33

a 34

a 34

a35

a33

a33

a32

32

33

32

a 34

a35

a 36

38

39

39

36

Jan.

35

35

32

a32

a 33

a32

a 33

a 33

a 33

a32

a32

a32

a33

a 33

a 33

a 33

a 36

a 37

36

a 36

a40

a 36

a 38

a39

a40

a39

a 38

38

a 38

a41

35

Feb.

38

a 39

39

a39

a40

a 39

a 39

a39

a 40

38

a 43

a41

a41

a 38

a 39

a 40

39

a 40

a 39

a 38

a 39

38

39

a40

a 38

a 40

41

42

_

39

Mar.

43

a 43

41

a43

a43

a45

45

45

a49

a48

a45

a 44

42

40

43

a 44

44

a 46

a41

44

a 43

a43

a40

a 44

a 46

42

46

48

a 54

a 52

a 52

45

Apr.

50

a 53

54

53

54

55

56

53

53

51

50

50

52

45

52

53

56

54

55

55

a 55

55

55

a 60

58

58

a 57

56

a 58

a 60

54

May

a 59

a 58

58

60

61

a 84

62

62

59

59

60

61

62

62

62

a 60

a 60

60

60

61

a61

60

59

60

61

62

63

62

64

63

64

61

June

64

65

64

63

65

a 68

a 68

a 68

a 69

67

67

67

67

65

a 70

67

68

68

68

67

69

67

67

67

69

a 67

66

67

67

a 68

67

July

68

70

70

72

72

71

74

73

73

73

73

74

a 74

74

73

a 76

74

75

76

78

77

77

79

78

79

80

79

79

79

80

78

75

Aug.

83

79

a 84

82

79

80

a 80

78

79

80

80

81

78

76

77

_

a 80

77

78

77

75

75

77

a81

78

a 76

a77

74

74

74

a 77

78

Sept.

74

72

75

74

a 76

74

73

72

72

69

65

67

67

66

68

68

69

80

a 69

68

68

68

69

70

70

70

70

68

68

70

a Observation made between 11 a. m. and 6 p. m.
COLORADO RIVER MAIN STEM 

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Continued 

Suspended sediment, water year October 1951 to September 1952

147

Day

1 2 ......

2 ......

4 ______

5 ......

6 ......

7 ......

8 ......

0 ......

10 ......

11 ......

12 ...... is ......

14 ......

15 ......

16 

17_.....

18 ......

10 

" " " " 

21 ......

22 

___--.

24 __ ._

2S ......

26 

27 

28 

20 ___

30 ......

81 ......

Total1 ......

2 ......

3 . 

4 .....

5 .....

e .....

7 .....

8 ... 

0 

10 

11 .....

12 .....

13 .....

14 ... 

15 .....

16 -----

IT .....

16 ..... 

10 ...

20 

21 .....

22 

23 - - 

24 

25 

26 ..... 

27 

28 - - 

20 

30 

31 .....

Total

October

Mean

discharge

(cfs)

7,690 

10,500 

5,930 

5,120 

5,210

5,120 

5,580 

5,490 

5,290 

5,400

6,210 

7,380 

8,280

7,770 

7,110

6,940 

6,940 

6,600 

6,440 

6,310

6,210 

6,020 

5,810 

5,840 

5,690

5,630 

5,780 

6,370 

7,770 

9,120 

12,200

207, 750

11,100 

10, 900 

11,800 

11,500 

9,200

7,040 

5,870 

5,720 

5,460 

5,660

4,820 

4,130 

4,150 

4,440 

4,540

5,180 

5,780 

5,930 

8,580 

15,900 

11,100 

9,000 

8,320 

8,280 

7,770 

7,350 

7,250 

7,280 

7,770 

8,930 

9,240

239,990

Suspended sediment

Mean 

concentration 

(ppm)

3,650 

21,900 

16,800 

10,300 

6,500

5,000 

4,200 

3,350 

3,050 

2,900

3,700 

3,650 

3,300 

2,850 

2,500

3,000 

3,600 

4,420 

5,000 

5,600

4,750 

3,420 

2,300 

2,250 

2,180

2,020 

1,900 

1,860 

5,000 

5,800 

10,300

_

January

6,360 

9,000 

8,700 

7,840 

5,350 

4,200 

2,980 

2,320 

2,020 

1,800

1,440 

1,060 

1,000 

1,020 

1,100

1,600 

3,020 

2,580 

4,700 

11,000 

11,800 

.10,800 

7,620 

4,800 

4,550 

4,320 

3,380 

3,700 

3,830 

3,720 

3,370

Tons 

per 

day

s 83, 000 

3555,000 

301,000 

142,000 

91,400

69,100 

63,300 

49,700 

43,600 

42,300

62,000 

72,700 

73,800 

59, 800 

48,000

56,200 

67,500 

78,800 

a 87, 000 

95,400

79,600 

55,600 

36,100 

35,500 

33,500

30,700 

29,700 

32,000 

105,000 

146, 000 

339,000

3,064,000

s 200, 000 

265,000 

277,000 

243,000 

133,000

79,800 

47,200 

36,800 

29,800 

27,500

18,700 

11,800 

all, 000 

12,200 

13,500

22,400 

47,100 

41,300 

109,000 

8468,000 

354,000 

262,000 

171,000 

107,000 

95,500 

85,700 

66,200 

72, 700 

80,300 

89,700 

84,100

{,561,300

November

Mean

discharge

(cfs)

11,500 

11,500 

10,200 

8,430 

7,680

7,700 

7,460 

7,460 

4,420 

7,350

7,210 

7,010 

6,910 

7,010 

7,010

7,250 

7,320 

6,940 

8,740 

6,840

6,770 

6,700 

6,340 

8,470 

7,520

8,770 

6,340 

6,470 

6,940 

6,910

224,370

Suspended sediment

Mean 

concentration 

(ppm)

6,840 

9,120 

12,400 

8,440 

6,020

7,400 

8,750 

4,880 

3,470 

3,210

2,450 

1,960 

1,960 

1,970 

1,870

2,000 

2,380 

1,840 

1,990 

1,860

1,720 

1,690 

1,430 

1,400 

2,080

3,210 

1,970 

2,140 

2,120 

1,990

February

8,580 

7,770 

7,250 

6,940 

8,700

6,570 

6,500 

6,500 

6,600 

6,500

6,470 

6,440 

6,310 

6,410 

6,670

7,040 

6,810 

6,540 

6,470 

6,500 

6,150 

6,280 

6,440 

6,340 

6,150 

5,930 

6,020 

6,210 

6,120

191,210

3,120 

2,820 

2,730 

2,330 

2,160

1,950 

1,630 

1,440 

1,450 

1,270

1,450 

1,590 

1,700 

1,810 

1,890

1,890 

1,730 

1,690 

1,920 

1,860 

2,080 

1,710 

1,660 

1,670 

1,680 

1,970 

1,780 

1,920 

1,810

Tons 

per 

day

212,000 

283,000 

341,000 

192,000 

128,000

154,000 

136,000 

98,300 

69,500 

83,700

47,700 

37,100 

36,600 

37,300 

35,400

39,200 

47,000 

34,500 

36,200 

34,400

31,400 

30,600 

24,500 

24,500 

42,200

58,700 

33, 700 

37,400 

39,700 

37,100

2,422,700

72,300 

59,200 

53,400 

43,700 

39,100

34,600 

28,600 

25,300 

25,800 

22,300

25,300 

27,600 

29,000 

31,300 

34,000 

35,900 

31,800 

29,800 

33,500 

32,600 

34,500 

29,000 

28,900 

a 28, 600 

27,900 

31,500 

28,900 

32,200 

29,900

896,500

December

Mean

discharge

(cfs)

6,640 

6,340 

5,990 

5,810 

6,150

7,250 

6,980 

7,080 

7,080 

4,040

6,470 

5,810 

4,940 

4,250 

3,770

3,380 

2,980 

2,930 

3,530 

4,150

4,590 

4,820 

5,120 

5,180 

5,100

4,860 

4,920 

5,320 

5,870 

6,500 

7.250

168, 100

Suspended sediment

Mean 

concentration 

(ppm)

1,520 

1,680 

1,440 

1,450 

1,720

2,560 

2,250 

2,090 

1,860 

2,190

1,840 

1,370 

1,170 

960 

773

624 

515 

535 

662 

792

984 

1,010 

1,000 

1,300 

1,090

1,230 

1,010 

1,190 

1,670 

1,720 

3. 180

Tons 

per 

day

27,300 

28,600 

23,300 

22,700 

26,600

50,100 

42,400 

40,000 

35,600 

41,600

32, 100 

21,500 

15,600 

11,000 

7,870

5,690 

4,140 

4,230 

6,310 

8,870

12,200 

13,100 

13,800 

18,200 

15,000

16,100 

13,400 

17,100 

26,500 

30,200 

62 r 200

695, 500

March

5,900 

5,990 

6,020 

6,150 

6,470 

6,600 

6,540 

6,410 

6,280 

6,310

6,500 

6,770 

7,380 

7,990 

8,100

7,950 

7,380 

7,080 

6,940 

7,250 

7,950 

7,880 

8,100 

7,990 

7,600 

7,280 

7,110 

7,210 

7,350 

8,080 

9,160

221,700

1,470 

1,660 

1,410 

1,260 

1,500

1,700 

1,700 

1,650 

2,160 

1,910 

1,960 

1,680 

2,110 

3,410 

3,630

4,590 

4,440 

3,440 

2,770 

2,590 

3,510 

4,230 

6,010 

4,850 

3,680 

3,020 

2,540 

2,290 

2,010 

2,560 

3,600

23,400 

26,800 

22,900 

20,900 

26,200

30,300 

30,000 

28,600 

36,600 

32,500

34,400 

30, 700 

42,000 

73,600 

79,400

98,500 

88, 500 

65,800 

51,900 

50,700 

75,300 

90,000 

131,000 

105,000 

75,500 

59,400 

48,800 

44,600 

39,900 

55,700 

89,000

1,707,900

s Computed by subdividing day.

a Computed from estimated concentration graph.
148 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

......

JO 

11 

12 ...

is ......

is 

17 

18

19......

20 ------ 

21 ......

24 . 

25 

16" 

28 

si ......

Total6 ...... 

7 ......

10 

11 ......

12 is ......

14 . ... 

15 _-_._-

16 ......

18 ......

19 ..... 

20 --- 

21 ... 

22 

23 ... 

24 

25 

29 

27 - - 

28 ------ 

29 

30 

81 

Total

April

Mean

discharge

(cfs)

11,800 

13,100 

14,600 

15,400 

17,100 

21,100 

22,400 

24,900 

24,200 

28,000

32,900 

37,000 

34,700 

34,300 

31,600 

30,000 

31,200 

35,600 

42,100 

47,600

49,700 

50,800 

54,000 

56,100 

57,200 

57,200 

60,800 

63,900 

68,500 

75,100

,142,700

Suspended sediment

Mean 

concentration 

(ppm)

6,380 

8,650 

9,400 

10,200 

10,100

11,700 

10,900 

11,200 

10,500 

10,600

11,200 

13,000 

13,100 

13,500 

12,200 

11,200 

10,300 

9,880 

10,200 

10,700

10,100 

9,000 

8,590 

8,780 

9,020 

8,170 

7,710 

7,520 

7,750 

6,980

July

44,500 

43,000 

42,500 

41,600 

39,700 

36,500 

34,800 

34,800 

36,500 

37,400

34,000 

31,400 

28,600 

26,600 

24,800

23,100 

21,400 

19,900 

18,700 

17,600

16,500 

16,000 

15,400 

14,500 

13,700 

13,300 

12,600 

12,200 

12,200 

13,300 

16,000

793, 100

1,850 

1,840 

1,820 

2,010 

1,680 

1,710 

1,830 

2,710 

2,620 

3,160

2,800 

2,910 

2,440 

2,140 

2,070

2,180 

1,780 

1,360 

1,360 

1,060

1,090 

1,130 

976 

1,050 

863 

972 

880 

900 

2,000 

3,220 

3,600

Total discharge for year (cfsTotal load for year (tons). . . .

Tons 

per 

day

203,000 

306,000 

371,000 

424,000 

466,000

667,000 

659,000 

753,000 

686,000 

801,000

995,000 

1,300,000 

1,230,000 

1,250,000 

1,040,000 

907,000 

868,000 

950,000 

1,160,000 

1,380,000

1,360,000 

1,230,000 

1,250,000 

1,330,000 

1,390,000 

1,280,000 

1,260,000 

1,300,000 

1,430,000 

1,420,000

29,646,000

222,000 

214,000 

209,000 

226,000 

180,000 

169,000 

181,000 

255,000 

258,000 

319,000

257,000 

247,000 

188,000 

154,000 

139,000

136,000 

103,000 

73,100 

68,700 

50,400

48,600 

48,800 

40,600 

41,500 

31,900 

34,900 

29,900 

29,600 

65,900 

116,000 

156,000

4,292,900

May

Mean

charge

(cfs)

78,600 

70,800 

68,400 

69,600 

77,500

89,600 

99,800 

108,000 

112,000 

109,000

109,000 

105,000 

97,800 

93,800 

92,800 

92,800 

95,800 

97,800 

95,800 

87,400

80,800 

75,300 

70,800 

68,400 

65,000 

60,500 

56,100 

55,000 

57,200 

59,400 

62,700

2,561,500

Suspended sediment

Mean 

concentration 

(ppm)

8,580 

8,160 

6,390 

6,800 

5,800

6,450 

7,390 

6,750 

6,520 

5,240

5,750 

4,910 

4,400 

4,280 

5,050 

4,240 

4,430 

4,290 

3,560 

4,400

5,020 

4,000 

3,830 

3,690 

3,740 

3,910 

3,430 

4,150 

3,610 

4,010 

3,020

_

Tons 

per 

day

1,820,000 

1,560,000 

1,180,000 

1,280,000 

1,210,000

1,560,000 

1,990,000 

1,970,000 

1,970,000 

1,540,000

1,680,000 

1,390,000 

1,160,000 

1,080,000 

1,270,000 

1,060,000 

1,150,000 

1,130,000 

921,000 

1,040,000

1,100,000 

813,000 

1,100,100 68i;ooo

650,000 

639,000 

520,000 

616,000 

558,000 

643,000 

511,000

15,392,000

August

16,200 

16,500 

15,700 

15,200 

15,000

15,000 

14,200 

13,500 

13,100 

12,000

11,600 

11,200 

11,600 

12,000 

12,200

15,200 

16,200 

13,500 

13,100 

13,100

12,600 

11,800 

11,400 

11,400 

11,400 

12,600 

13,500 

13,500 

13,100 

13,300 

13,100

414,000

5,300 

6,540 

5,950 

5,480 

4,620 

3,420 

3,600 

2,760 

2,850 

2,880

2,690 

2,700 

2,600 

2,900 

2,100

2,900 

2,980 

7,390 

5,260 

3,820

4,340 

5,920 

4,440 

3,580 

3,660 

3,940 

4,500 

3,940 

5,350 

5,400 

7,820

232,000 

291,000 

252,000 

225,000 

187,000 

139,000 

138,000 

101,000 

101,000 

93,300

84,300 

81,600 

82,700 

94,000 

69,200

al20,000 

130,000 

269,000 

186,000 

135,000

148,000 

189,000 

137,000 

110,000 

113,000 

136,000 

164,000 

144,000 

189,000 

194,000 

277,000

4,812,100

June

Mean

charge 

(cfs)

68,400 

71,900 

76,400 

80,800 

83,000

94,800 

102,000 

104,000 

108,000 

115,000

121,000 

122,000 

121,000 

121,000 

119,000 

111,000 

107,000 

105,000 

98,800 

86,300

77,500 

73,000 

70,800 

65,000 

60,500 

56,100 

52,800 

50,600 

48,000 

47,000

2,617,700

13,300 

13,500 

13,100 

12,800 

12,000 

10,900 

9,940 

9,390 

8,860 

8,520

,980 

,490 

,280 

,050 

,050

,120 

,860 

6,560 

6,590 

6,630

7,050 

8,340 

10,100 

12,600 

9,780 

8,710 

8,480 

8,670 

8,480 

8,090

273,220

Suspended sediment

Mean

COHCGB 

tration 

(ppm)

3,770 

3,500 

3,900 

4,630 

5,890 

5,480 

4,500 

4,120 

3,160 

3,630

3,520 

3,340 

2,940 

3,100 

2,980 

3,410 

2,990 

2,880 

2,670 

2,930

2,810 

2,570 

2,600 

2,190 

2,770 

2,140 

2,300 

2,200 

1,930 

2,230

~

Tons 

per 

day

696,000 

679,000 

804,000 

1,010,000 

1,320,000

1,400,000 

1,240,000 

1,160,000 

921,000 

1,130,000

1,150,000 

1,100,000 

960,000 

1,010,000 

957,000 

1,020,000 

864,000 

816,000 

712,000 

683,000

588,000 

507,000 

497,000 

384,000 

452,000 

324,000 

328,000 

301,000 

250,000 

283,000

23,546,000

September

8,880 

8,420 

8,180 

7,740 

5,820 

5,610 

6,150 

5,980 

4,900 

4,300

4,100 

3,540 

2,350 

1,830 

1,180

1,060 

870 

860 

998 

1,250

2,800 

8,650 

5,100 

7,450 

25,200 

20,700 

11,000 

6,930 

4,650 

3,150

days) .........................................................

.............................................................. 1

319,000 

307,000 

289,000 

267,000 

189,000

165,000 

165,000 

152,000 

117,000 

98,900 

88,300 

71,600 

46,200 

34,800 

22,500

20,400 

16,100 

15,200 

17,800 

22,400

53,300 

195,000 

139,000 

253,000 

665,000 

487,000 

252,000 

162,000 

106,000 

68,800

4,805,300

9,055,340 

14,932,510

a Computed from estimated concentration graph.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Particle-size analyses of suspended sediment, water year October 19S1 to S

(Methods of analysis: B, bottom withdrawal tube; 0, decantation; P, pipette; S, si

W, in dietilled water; C, chemically dispersed; M, mechanically dia

Date 

of 

collection

Oct. 1, 1951.....

Oct 2 ...

Oct. 2 ..........

Oct. 31 .........

Nov. 1 ..........

Jan. 1, 1952 ....

Jan. 2 ..........

Time

8:40 a. m. 

11:30 a.m. 

11:30 a. m. 

11:30 a. m. 

11:30 a. m. 

2:30 p. m.

9:10 a. m. 

9:15 a. m. 

9:45 a. m. 

9:20 a. m. 

9:10 a. m.

9:10 a. m. 

9:10 a. m. 

9:10 a. m. 

11:30 a.m. 

2:30 p. m. 

5:30 p. m.

8:45 a. m. 

12:15 p.m. 

9:10 a. m. 

9:20 a. m. 

2:00 p. m. 

2:50 p. m.

10:10 a. m. 

11:00 a. m. 

4:30 p.m. 

4:30 p. m. 

4:30 p.m. 

4:30 p. m.

Water 

discharge 

(efs)

5,930 

9,890 

9,890 

9,890 

9,890 

8,850

7,250 

8,360 

7,880 

5,870 

12,900

12,900 

12,900 

12,900 

13,100 

12,700 

12,200

11,800 

7,210 

6,810 

6,570 

6,440 

4,560

10,200 

11,100 

10,000 

10,000 

10,000 

10,000

Water 

temperature

("*0

Suspended sedimen

Concentration 

of sample 

(ppm)

2,600 

27, 200 

27,200 

27,200 

27,200 

27, 100

3,920 

3,270

2,600 

12,200

12,200 

12,200 

12,200 

11,700 

10,300 

8,260

6,450 

2,220 

1,890 

1,650 

1,760 

953

4,350

8,330 

8,330 

8,330 

8,330

Concentration 

of suspension 

analysed 

(ppm)

2,570 

3,180 

3,370 

2,990 

2,580 

2,870

3,850 

2,870 

5,150 

4,380 

3,320

3,220 

3,200 

3,390 

2,790 

3,800 

2,040

3,360 

1,750 

1,560 

1,250 

1,830 

2,020

5,470 

2,140 

3,340 

3,200 

2,090 

2,190

Percent finer tha

0.002

SI 

7 

48 

5

42

3 

38 

9

22 

14

14

40 

1 

42 

17

0.004

88 

59 

8 

59 

10 

62

50 

34 

55 

59 

51

8 

51 

11 

60 

48 

71

49 

47 

24 

42 

25 

18

17 

56 

41 

4 

51 

21

0.008

66 

10 

71 

16

63

23 

64 

17

30 

23

21

56 

12 

61 

34

0.016

92 

81

83 

85

64 

51 

71 

67 

77

71 

76 

47 

79 

77 

75

65 

57 

33 

45 

34 

29

30 

73 

65 

66 

68 

45

0.031

4
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ.--Continue

Particle-size analyses of suspended sediment, water year October 1951' to Sept

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S

W, in distilled water; C, chemically dispersed; M, mechanically 

Date 

of 

collection

Jan. 3, 1952 ...

Jan. 20.........

Feb. 1 .........

Apr. 27 ........

Apr. 30 ........

Mav9 .........

Time

10:00 a. m. 

1:10 p.m. 

10:00 a. m. 

12:30 p. m. 

12:30 p. m. 

12:30 p. m.

12:30 p. m. 

4:45 p.m. 

12:30 p.m. 

2:30 p.m. 

11:00 a.m. 

1:45 p.m. 

1:40 p.m.

12:20 p. m. 

10:00 a. m. 

12:15 p.m. 

11:30 a. m. 

11:00 a.m. 

8:40 a. m.

9:00 a. m. 

9:00 a. m. 

4:00 p. m. 

12:15 p. m. 

1:30 p.m. 

3:15 p.m.

12:10 p.m. 

9:15 a. m. 

8:30 a. m. 

8:30 a.m. 

4:00 D. m.

Water 

discharge 

(cts)

12,700 

4,320 

18,000 

17,100 

17,100 

17,100

17,100 

15,000 

11,500 

8,970 

8,700 

8,500 

6,150

5,990 

7,210 

7,740 

9,000 

20,800 

30,800

37,400 

37,400 

49, 200 

61,700 

76,200 

67,300

89,800 

98,800 

105,000 

105,000 

113.000

Water 

temperature 

CD

Suspended sedim

Concentration 

of sample 

(ppm)

964

10,200 

10,200 

10,200

10,200

11,500 

3,040 

1,480 

1,880

1,640 

1,970 

3,380 

3,370 

10,300 

10,600

12,800 

12,800 

9,050 

7,290 

7,030 

7,120

5,870 

6,910 

7,000 

7,000 

5.740

Concentration 

of suspension 

analysed 

(ppm)

4,430 

2,330 

3,820 

3,050 

2,340 

2,140

2,110 

5,150 

3,070 

3,250 

5,050 

8,320 

3,790

2,330 

3,380 

2,940 

3,870 

4,850 

3,970

4,090 

3,930 

3,380 

6,010 

4,670 

5,720

4,100 

5,620 

4,640 

5,180 

3.650

Percent finer 

0.002

27

16

4 

28

0.004

53 

31 

31 

24 

5 

33

40 

54 

59 

32 

37 

39

25 

29 

49 

38 

39 

31

30 

3 

20 

28 

25 

32

25 

22 

24 

3 

27

0.008

35

24 

24 

41

36

0.016

72 

39 

45 

33 

48 

50

49 

71 

77 

80 

45 

46 

54

37 

39 

74 

56 

62 

34

52 

53 

40 

45 

42 

51

39 

34 

38 

37 

40

0.0
May 13, 1952....

June 7

June 16 ........

June 23

Aug. 1.........

Ao«. 1 .........

9:10 a. m. 

9:50 a. m.

11:00 a. m.

8:45 a. m.

8:45 a. m.

12:00 m.

11:15 a.m.

7:40 a. m.

10:00 a. m.

9:20 a. m.

10:30 a.m.

5:40 D. m.

98,800 

92, 800

nn nnn

16.000

4,410 

4,060

4,400

3,540 3 9AO

3.730

6,280

5,780

3,460

5,140

5,430

2,510

2,600

4,090

3,950

4,320

2,850

4,640

2,900

3,460

2,220

1,550

2,710

2,940

1,390

1,330

1,660

3,980

3,560

4,250

4,340

5,480

4,610

___

__

143_

16_

..

..8"

--

--_

19

17

30

14

16

158

196

12

15

12

20

20

19

10

14

1499

10

14

33

47

47

60

53

__

_.

__

.__

23

18_

.._

25___

.__

13

--

--

--_

29

26

28

22

24

24

23

28

26

20

22

29

30

31

28

19

21

19

18

16

17

22

47

70

70

80

70
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Particle-size analyses of suspended sediment, water year October 1951 to Septemb

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, sie

W, in distilled water; C, chemically dispersed; M, mechanically disp

Date 

of 

collection

Aug. 7, 1952..... 

Aug. 7 ..........

Aug. 7 ..........

Aug. 17 .........

Aug. 23 .........

Sept. 23 ........

Sept 25

Sept. 25.........

Time

2:00 p. m. 

2:00 p. m. 

2:00 p. m. 

2:00 p. m. 

6:00 p.m. 

1:10 p.m. 

10:10 a. m.

8:30 a. m. 

11:30 a. m. 

2:30 p. m. 

7:00 p.m. 

11:30 a. m. 

9:15 a. m.

9:20 a. m. 

12:25 p. m. 

4:30 p.m. 

9:15 a. m. 

9:45 a. m. 

4:00 p. m.

Water 

discharge 

(cfs)

14, 200 

14,200 

14,200 

14,200 

15, 200 

13,300 

11,200

12,600 

13,500 

14, 200 

13,300 

12,000 

7,050

8,670 

8,860 

7,880 

9,670 

9,900 

9,360

Water 

temperature 

(°F>

Suspended sediment

Concentration 

of sample 

(ppm)

3,590 

3,590 

3,590 

3,590 

2,490 

7,730 

4,140

2,280 

2,470 

3,100 

6,710 

4,050 

1,110

7,640 

7,030 

11,200 

4,220 

21,600 

27,500

Concentration 

of suspension 

analyzed 

(ppm)

4,160 

3,880 

3,700 

3,650 

3,020 

3,940 

3,880

2,940 

2,840 

2,660 

3,760 

4,220 

2,540

3,820 

4,020 

2,860 

3,800 

4,130 

3,760

Percent finer than 

0.002

46 

5

0.004

55 

4 

59 

8 

51 

57 

64

50 

47 

43 

45 

71 

48

55 

49 

60 

47 

66 

67

0.008

70 

18

0.016

73 

74 

78 

78 

68 

84 

84

63 

64 

57 

65 

87 

71

76 

72 

77 

68 

90 

92

0.031

81 

82
PARIA RIVER BASIN 153

PARIA RIVER BASIN 

PARIA RIVER AT LEES FERRY, ARIZ.

LOCATION. At gaging station half a mile upstream from mouth and one mile northwest of

Lees Ferry, Coconino County.

DRAINAGE AREA.--1,570 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to February 1950.

Sediment records: October 1947 to September 1952. 

EXTREMES, 1951-52. Sediment concentrations: Maximum daily, 411,000 ppm Aug. 27;

maximum observed, 646,000 ppm Aug. 27; minimum daily, 12 ppm Oct. 20-28. 

Sediment loads: Maximum daily, 910,000 tons Aug. 27; minimum daily, 0.2 ton Oct.

20-28, June 29, 30, July 2. 

EXTREMES, 1947-52. Sediment concentrations: Maximum daily, 411,000 ppm Aug. 27, 1952;

minimum daily, 1 ppm June 1-10, 1950. 

Sediment loads: Maximum daily, 910,000 tons Aug. 27, 1952; minimum daily, less than

0.05 ton on many days. 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in

WSP 1243.

Suspended sediment, water year October 1951 to September 1952

Day

1 

2 - --

3 ......

4 

5 ......

6 ......

7-..---

9 ......

10 - 

a ......

12.... _ . 

13 ......

14 ......

15 ......

16 ....

17 ......

18 ......

19 ......

20 

21 

22 

23 

24 ------

25 

26 ------

27 ----- -

28 -

29 ......

30 ......

31 -

TotalOctober

Mean 

discharge

(efs)

21

16

11

8.3

7.1

5.4

5.4

6

« 

. 4

6. 2

5.4

5.4 

5.1 4 9

5. 8

5.8

6.2

6.7

6.2

5.4

5.1

5.1

5.1

5.1

5.1

5.4

6.2

6.2

8.3

13

13

22

243.1

Suspended sediment

Mean 

concentration 

(ppm)

30,500

24,500

18,000

7,300

1,100

303

160

antfu

31

12

58

230

3,930

--

Tons 

per 

day

1,730

1,060

535

164

21

4.4

2.3

1.5

.5

.2

2.0

8.1

S340

3,875.6

November

Mean 

discharge

(efs)

8

0 

. 3

6.7

7.5

5.8

7.9

8.8

7.9

8

0 

. o

9 2

11

9. 6

9.6 

14

14

9.6

9.2

7.5

5.4

8.8

16

19

21

23

39

33

23

19

24

29

27

442.6

Suspended sediment

Mean 

concentration 

(ppm)

1 flfl low

62

on

17

29

65

170

420

1,000

5,920

1,050

1,500

2,000

780

600

528

~

Tons 

per 

day

4.0

1.1

.8

.4

.7

2.8

8.7

24

62

s?09

94

93

103

51

47

38

1,246.6

December

Mean 

discharge

(efs)

25

24

23

22

39

66

22

4.9

4.0

7.5

6.2

6.2 

8. 3

17

13

11

14

18

18

16

7.5

11

14

17

22

22

25

24

40

490

276

1,313.6

Suspended sediment

Mean 

concentration 

(ppm)

800

1,550

1,400

1,000

6,240

28,300

16,800

8,600

5,706

2,700

1,200 

750 

456

940

376

368

173

450

200

500

210

430

294

450

580

258

617

420

8,940

57,600

51,200

Tons 

per 

day

54

100

87

59

sl,930

s6,110

998

114

62

55

20

13 

10

13

11

6.5

22

9.7

22

4.3

13

11

21

34

15

s52

27

s2,440

s 95, 300

s 46, 500

154.156.5

s Computed by subdividing day.
154 COLORADO RIVER BASIN

PARIA RIVER BASIN Continued

PARIA RIVER AT LEES FERRY, ARIZ.--Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

3 

4- 

12 

IS 

18 

20 

22 

24 

28 

2» 

Si 

Total8 

is 

15 

18 

20 

21 

22 

23 

24 

25 

26 

27 

28 

2» 

30 

31 

Total

January

Mean

discharge

(cfs)

52 

11 

6.5 

12 

12

8.6 

10 

19 

15 

8.2

19 

29 

29 

23 

21

22 

22 

33 

56 

106

49 

36 

37 

30 

45

120 

88 

51 

34 

27 

28

1,059.3

124 

78 

71 

69 

72

74 

70 

75 

63 

36 

32 

29 

24 

24 

26 

25 

22 

20 

20 

23 

32 

40 

24 

19 

18

17 

23 

101 

93 

38

1,382

Suspended sediment

Mean 

concentration 

(ppm)

20,600 

4,400 

1,970 

1,250 

1,200

980 

810 

800 

750 

449

509 

750 

650 

528 

500

517 

302 

4,800 

6,880 

23,200

25,900 

8,220 

3,730 

3,960 

4,080

25,500 

15,300 

10,700 

5,600 

2,240 

1,840

April

59,800 

47,800 

24,800 

30,000 

34,000

32,800 

32,600 

30,400 

32,300 

17,600 

8,350 

3,650 

2,600 

1,730 

3,600

4,700 

5,010 

4,200 

3,700 

5,150

6,520 

7,400 

7,550 

5,050 

2,900 

2,100 

2,750 

31,200 

33,400 

20,200

Tons 

per 

day

s3,080 

131 

35 

40 

39 

23 

22 

41 

30 

10

26 

59 

a 51 

33 

28

31 

18 

S538 

si, 720 

s8,060

s3,830 

S741 

s396 

S361 

S537

s8,780 

s3,600 

si, 600 

514 

163 

139

34,676

521,500 

slO.400 

s 5, 510 

5,590 

6,850

6,800 

6,390 

6,160 

5,700 

1,710 

721 

286 

168 

112 

253 

a320 

298 

227 

200 

320

563 

799 

489 

259 

141

96 

171 

ill,400 

8,700 

2,070

104.203

February

Mean

charge

(cfs)

30 

35 

44 

33 

37

31 

32 

30 

31 

32

32 

31 

37 

22 

16

22 

24 

30 

34 

18

19 

24 

27 

24 

20

16 

21 

24 

68

844

Suspended sediment

Mean 

concentration 

(ppm)

1,800 

1,710 

2,690 

3,850 

3,760

3,740 

2,600 

2,300 

2,000 

1,900

1,800 

1,900 

2,250 

2,300 

2,500

1,600 

1,600 

1,600 

900 

800

800 

900 

1,000 

1,100 

1,000

1,400 

1,100 

1,000 

5,420

Hay

24 

18 

19 

14 

11

7.8 

6.2 

5.2 

5.2 

4.9 

.6 

.6 

.3 

.1 

.3

4.9 

4.9 

12 

15 

7.8 

5.5 

5.2 

4.6 

4.6 

4.6

4.6 

.6 

.6 

.3 

.1 

.1

232.6

8,200 

3,240 

1,600 

7,300 

8,200

2,550 

1,750 

950 

636 

322 

239 

187 

80 

83 

41

43 

26 

8,340 

6,750 

1,900 

878 

749 

277 

500 

237

209 

66 

71 

66 

49 

58

Tons 

per 

day

146 

162 

320 

343 

S397

313 

225 

a 190 

167 

164

156 

159 

225 

a 140 

108

95 

104 

130 

83 

39

41 

58 

73 

71 

54

60 

67 

65 

si, 420

5j575

531 

157 

82 

a 280 

244

54 

29 

13 

8.9 

4.3 

3.0 

2.3 

.9 

.9 

.5

.6 

.3 

S444 

273 

40

13 

11 

3.4 

6.2 

2.9 

2.6 

.8 

.9 

.8 

.5 

.6

2,211.4

March

Mean

charge

(cfs)

112 

147 

56 

30 

28

28 

30 

28 

30 

66

55 

37 

26 

30 

23

26 

35 

26 

24 

27

35 

20 

16 

16 

37

61 

70 

76 

88 

103 

130

1,516

4.3 

4.3 

11 

68 

33

23 

13 

9.4 

5.8 

4.1 

3.9 

3.9 

3.7 

3.7 

3.7

3.2 

3.7 

3.7 

3.5 

3.7

3.7 

3.7 

3.5 

3.7 

3.7 

3.7 

4.3 

3.9 

3.5 

3.2

249.5

Suspended sediment

Mean 

concentration 

(pom)

15,700 

26,200 

19,800 

6,500 

2,600

2,510 

3,210 

2,000 

1,350 

16, 500

32,100 

16,800 

4,200 

2,250 

2,900

1,480 

2,490 

3,410 

3,500 

3,000

6,760 

12,200 

5,890 

2,800 

8,330

29,700 

30,300 

33,000 

39,500 

52,600 

53.600

Tons 

P« 

day

s5,500 

s 11, 400 

S3, 150 

526 

197

190 

260 

151 

109 

s4,680

4,940 

1,680 

295 

182 

180

104 

235 

239 

227 

219

639 

659 

254 

121 

1,680

s 5, 260 

s6,030 

s7,660 

s 11,400 

s 16, 200 

s 20. 600

104.967

June

66 

45 

4,200 

36,300 

69,500

41,900 

13,300 

15,200 

16,000 

4,000 

379 

223 

103

32

246 

200 

40 

58 

37

46 

84 

27 

24 

21

0.8 

.5 

125 

s8,360 

6,420

2,700 

467 

386 

251 

44 

4.0 

2.3 

1.0

.3

2.5 

2.0 

.4 

.6 

.4

.5 

1.0 

.3 

.2 

.2

18,771.8

s Computed by subdividing day.

a Computed from estimated concentration graph.
PARIA RIVER BASIN 155

PARIA RIVER BASIN Continued

PARIA RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

j _ , _

4 

5 

9 

10 

15 

1« 

19 

20 

29 

30 

Jl 

TotalJuly

Mean

charge

(cfs)

3.7 

3.5 

3.5 

3.5 

4.1

12 

44 

15 

11 

26

14 

9.0 

4.9 

4.1 

3.9

3.9 

3.9 

3.9 

3.9 

3.5

3.5 

3.7 

4.1 

4.1 

4.3

4.1 

80 

16 

103 

88 

31

523.1

Suspended sediment

Mean 

concentration 

(ppm)

37 

17 

46 

38 

23 

10,800 

71,600 

35,500 

19, 100 

51,900

41,200 

36,000 

22,800 

22,500 

15,200

5,440 

923 

434 

336 

218

226 

141 

95 

64 

80

81 

135,000 

130,000 

141,000 

82,300 

28,500

~

Tons 

per 

day

0.4 

.2 

.4 

.4 

.3

82,550 

813,800 

si, 660 

s940 

83,950

1,620 

a9lO 

302 

249 

160

57 

9.7 

4.6 

3.5 

2.1

2.1 

1.4 

1.1 

.9 

.9

.9 

346,900 

6,030 

874,700 

825,400 

2,390

181,646. 9

August

Mean

charge

(cfs)

16 

10 

7.4 

5.8 

5.2

4.6 

4.6 

4.9 

25 

17

9.0 

4.9 

4.9 

4.6 

3.9

4.9 

9.9 

10 

11 

7.4

33 

57 

23 

19 

14

90 

465 

48 

36 

31 

22

1,009.0

Suspended sediment

Mean 

concentration 

(ppm)

41,000 

34,200 

29,000 

9,000 

888

320 

394 

191 

65,800 

63,500

48,600 

20,500 

7,900 

1,480 

648

500 

17,000 

55,000 

38,600 

9,800

144,000 

155,000 

117,000 

67,000 

44,000

101,000 

411,000 

131,000 

62,100 

21,400 

23,400

Tons 

per 

day

1,840 

958 

579 

141 

12

4.0 

4.9 

2.5 

s5,340 

3,020

1,220 

271 

105 

18 

6.8

a7 

454 

1,540 

sl,140 

196

14,300 

828,100 

s7,950 

3,560 

1,720

867,800 

;910,000 

820,700 

s 6, 640 

1,790 

1.390

1.080.809.2

September

Mean

charge

(cfs)

16 

14 

13 

13 

10 

7.0 

6.6 

6.2 

6.6 

7.0

14 

7.9 

6.6 

5.6 

5.2

5.6 

5.8 

7.9 

6.6 

11

26 

324 

46 

22 

19

17 

16 

16 

16 

15

692.4

Suspended sediment

Mean 

concentration 

(PPB)

16,500 

4,250 

1,140 

500 

241 

193 

114 

108 

100 

128

800 

397 

204 

123 

73

52 

77 

162 

61 

550

22,600 

179,000 

108,000 

64,000 

36,000

14,000 

1,640 

532 

266 

176

Tons 

per 

day

713 

161 

40 

18 

6.5 

3.6 

2.0 

1.8 

1.8 

2.4

30 

8.5 

3.6 

1.9 

1.0

.8 

1.2 

3.5 

1.1 

s25

sl,980 

1259,000 

s 14, 600 

3,940 

1,920

643 

71 

23 

11 

7.1

283.221.8

Total discharge for year (cfs-days) 

Total load tor year (tons) ..........

9,507.2 

, 1,975,360.8

s Computed by subdividing day.

a Computed from estimated concentration graph.
LITTLE COLORADO RIVER BASIN 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ.

LOCATION. At gaging station at highway bridge in Woodruff, Navajo County, 3} miles downstream from Silve

DRAINAGE AREA. 8,100 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: June 1950 to September 1952.

Water temperatures: June 1950 to September 1952.

Sediment records: June 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 676 ppm June 3; minimum, 132 ppm Mar. 21-31, Apr. 1.

Hardness: Maximum, 256 ppm Feb. 11-20; minimum, 40 ppm July 29-30.

Specific conductance: Maximum observed. 1,130 micromhos June 3; minimum observed, 166 micromhos Mar. 3

Water temperatures: Maximum observed, 85°F Aug. 3; minimum observed, 33*F Dec. 9, Jan. 6.

Sediment concentrations: Maximum daily, 55,200 ppm June 3; maximum observed, 90,000 ppm April 28; mini

Sediment loads: Maximum daily, 262,000 tons Jan. 19; minimum daily, 0 ton on several days. 

EXTREMES, 1950-52. Dissolved solids: Maximum 838 ppm July 11-12, 1950; minimum, 132 ppm Mar. 21-31, Apr

Hardness: Maximum, 256 ppm Feb. 11-20, 1952; minimum, 40 ppm July 29-30, 1952.

Specific conductance: Maximum observed, 2,110 micromhos July 11, 1950;minimum observed 166 micromhos 

Water temperatures: Maximum observed, 85*F Aug. 3, 1952; minimum observed, 33*F Dec. 31, 1950, Dec. 9, 

Sediment concentrations: Maximum daily, 66,400 ppm Aug. 4, 1951; minimum daily, no flow on many days.

Sediment loads: Maximum daily, 409,000 tons Aug. 28, 1951; minimum daily, 0 ton on many days.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific co

office at Albuquerque, N. Mex. Records of discharge for water year October 1951 to September 1952 giv

21, 22.

Chemical analyses, In parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951 ...

Jan. 1-10, 1952 ...

Jan. 21 -2a........

Jan.30-31,Feb.l-10.

Feb 21-29

Mar. 21-Sl^i. I.

Mean 

discharge 

(cfs)

35.4 

1.66 

2.05 

2.11 

4.96 

4.12

3.60 

4.96 

88.4 

89.1 

1,304 

131 

15.7

14.9 

14.0 

17.7 

104 

131

Silica 

(SiO.)

17 

21 

24 

19 

20 

25

19 

24 

24 

14 

20 

16 

22

23 

20 

25 

32 

29

Iron 

(Fe)

0.01 

.02 

.07 

.07 

.03 

.02

Calcium 

(Ca)

33 

43 

46 

48

47 

47

46 

52 

50 

29 

24 

28 

62

60 

54 

49 

28 

23

Magnesium 

(Mg)

15 

16 

19 

21 

21 

23

21 

25 

23 

7.9 

5.2 

8.0 

24

26 

26 

24 

8.7 

6.4

Sodium 

(Na)

4

!

1

28 

21 

3.7 

19 

11 

21

Potassium 

(K)

9 

2 

3

!9 

!9 

!9

!9 

4.4 

4.6 

4.0 

3.8 

4.8 

5.0

87 

24 

!6 

9.9 

7.8

Bicarbonate 

(HCO,)

156 

178

100

204 

204 

222

204 

233 

226 

116 

121 

125 

272

278 

257 

248 

131 

104

Carbonate 

(CO,)

0 

0 

0 

0 

0 

0

0 

8 

5 

0 

0 

0 

S

8 

5 

5 

0 

0

Sulfate 

(S04)

75 

64 

67 

68 

67 

61

66 

60 

49 

14 

IS 

16 

45

46 

46 

39 

13 

11

Chloride 

(Cl)

30 

22 

22 

22 

22 

21

21 

19 

15 

6.2 

7.2 

7.5 

16

18 

16 

14 

4.0 

3.0

Fluoride 

(F)

0.3 

.3 

.3 

.4 

.3 

.2

Nitrate 

(NO,)

1.5 

.9 

.4 

.5 

.5 

.6

.5 

.2 

.3 

1.3 

1.2 

1.6 

2.0

1.3 

.7 

.4 

1.0 

.8

Boron 

(B)

0.12 

.30 

.39 

.35 

.21 

.13

P
Apr. 2-9, 1952 .....

Apr. 21-22,25-27,30. 

Apr. 23-24, 28-29 . . 

May 1-10 ..........

June 1-2, 4-10. .....

June 11-17 »-.......

June 24, 26-30. .....

Aug. 1-5, 7-10 .....

Aug 11-20

Aug. 21-26,30-31 ..

Sept. 21-30 ........

Weighted average . .

39.2

22.0 

88.2

4.14

11.0

.69

12.3

29.8 

13

33.9

284

77.3

18

22 

18 

22

23

20

19

20

32

25 

32

18 

17

24

28

22

-

--_-

--~

30

32 

23 

34

49

34

40

44

44

23

35

44

27

28

9.8

9.0 

5.5 

9.8

13

15

16

14

5.2

7.6

6.2 

4.6

8.6

10

6.8

7.7

12

58 

172 

16

25

78

226

50

63

50

63

39

20 

44

60

32

137

193 

198 

149

200

196

223

195

199

144

206

207

168

134 

148

170

143

0

0 

10 07

125

10

100

19

0 

1100

19

52 

126 

23

65

182

55

74

43

52

55

54 

115

61 

119

56

32

8.0

21 

103 

9.0

16

42

115

26

30

13

16

20

22

18 

80

9.5

20

12

-

___

__-"«

1.2

.8 

.8 

1.1

.8

.8

.7

1.3

.5

.5

.8

.9

2.5 

2.7

1.4 

.3

.4

1.1

-

_

_

a No flow June 18-23, 25.
158 COLORADO RIVER BASIN

LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ. Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once -daily temperature reading, generally between 11 a. m. and 6 p. m._7

Day

1

2

3

4

5

6

7

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

Oct.

64

61

59

62

60

60

62

63

64

64

63

60

59

59

58

55

60

60

59

57

55

55

56

54

53

54

53

53

55

51

49

58

Nov.

a 48

a43

48

50

47

46

46

50

49

48

50

48

48

48

48

44

44

44

44

45

45

45

44

42

a 36

a35

a36

a 37

a 38

45

Dec.

42

44

42

42

40

40

37

34

a 33

37

36

36

37

37

37

38

38

35

35

34

37

37

37

36

40

40

39

41

42

45

39

38

Jan.

39

36

36

37

35

33

37

39

39

35

40

40

41

38

40

40

40

41

41

40

40

41

41

43

40

43

41

46

41

45

41

40

Feb.

42

41

42

40

41

42

41

42

42

46

46

42

41

40

40

41

40

40

41

41

43

43

44

_

44

44

45

45

48

42

Mar.

48

42

44

42

43

45

48

49

44

41

40

40

43

50

50

45

a 44

_.

46

45

41

39

42

45

46

50

55

55

64

53

55

46

Apr.

57

56

58

60

65

59

57

51

60

54

53

57

_

61

61

62

62

60

60

54

54

_

62

61

66

52

47

53

61

58

May

68

b70

68

69

70

68

65

64

66

70

74

72

72

b65

63

b58

60

65

72

65

64

65

68

72

72

b69

70

69

69

70

69

68

June

b67

61

65

70

72

74

74

76

76

75

b75

b77

b77

78

77

b80

82

75

75

74

73

71

70

69

67

69

b70

74

b74

78

7J

July

b78

b80

80

73

65

69

73

73

73

77

76

77

77

b74

b74

b75

76

78

78

72

77

76

76

b76

b80

b75

b71

b75

73

76

76

75

Aug.

78

80

85

75

75

75

80

81

73

79

b73

73

75

73

79

75

72

72

76

64

71

76

75

77

b77

72

75

67

74

... 74

75

Sept.

75

78

b74

76

b77

76

75

b71

72

70

67

63

72

70

71

72

70

73

70

68

62

61

64

66

69

68

68

63

66

69

70

a Observation made before 11 a. m. 

b Observation made after 6 p. m.
LITTLE COLORADO RIVER BASIN 

LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ.--Continued 

Suspended sediment, water year October 1951 to September 1952

159

Day

3~...__

4_.,. _ ._

g ......

10 ------

13 

14 

18

22

27 

9fl

29

31 ------

TotalIt

g

14 ------

15 ...... 

16 

18 .-_._- 

19 ...... 

20 ------ 

21 ...... 

22 ------ 

23 ----- 

24 ------ 

25 

26 . 

27 ----- 

28 ----- 

29 ----- 

30 

31 ......

Total

October

Mean

charge

(cfs)

19 

243 

52 

18 

7.2

4.0 

3.0 

2.5 

2.5 

2.5

2.5 

1.6 

1.3 

1.3 

1.6

2.2

1.6 

1.6 

1.6 

1.3

1.3 

1.3 

1.3 

1.3 

1.3

3.0 

3.5 

3.0 

2.2 

1.8 

2.5

392.8

300 

140 

75 

61 

58 

55 

51 

51 

51 

49

48 

26 

92 

1,640 

290

114 

67 

2,410 

6,850 

1,500 

450 

216 

156 

129 

101 

43 

30 

27 

23 

20 

18

15,141

Suspended sediment

Mean 

concentration 

(ppm)

1,500 

35,100 

20,400 

5,500 

500

236 

116 

88 

77 

51

67 

63

1- 

1-

45 

63

January

2,510 

950 

800 

806 

845

764 

768 

806 

602 

546

544 

576 

1,950 

11,100 

9,300 

7,900 

4,100 

6,700 

14,100 

7,180 

2,720 

1,300 

860 

790 

750 

670 

350 

165 

69 

36

--

Tons 

per 

day

77 

s 26, 900 

s3, 060 

267 

9.7

2.5 

.9 

.6 

.5 

.3

.5 

.3

.2 

.2

.3 

.4

30,324.4

2,030 

359 

162 

133 

132

113 

106 

111 

83 

72

71 

40 

s6,910 

S67.400 

s7,350 

2,430 

742 

592,400

333,000

s3,440 

758 

362 

275 

205 

78 

28 

12 

4.3 

1.8

480,809.9

November

Mean

charge

(cfs)

2.2

1.8 

1.6 

1.6 

1.6

1.6 

2.5 

3.5 

2.5 

2.2

4.0 

5.2 

5.8 

5.8 

5.2

4.6 

4.6 

4.6 

4.6 

5.2

4.6 

4.6 

4.6 

4.6

4.6 

4.0 

3.5 

3.0 

2.5

111.9

Suspended sediment

Mean 

concentration 

(ppm)

35 

39 

31

Tons 

per 

day

0.2 

.5 

.3

10.0

February

17 

17 

16 

15 

14

14 

14 

14 

14 

15

15 

16 

15 

14 

14 

16 

16 

15 

14 

14 

U 

14 

14 

14 

14 

14 

14 

14 

14

425

21

17

9 

10

--

0.9

.7

.3 

.4

19.2

December

Mean

charge

(cfs)

2.5 

3.0 

3.0 

3-5 

4.0

4.0 

4.0 

4.0 

4

4 

4 

5 

5 

5

5 

5 

5 

5.8 

5.8

6 

6 

6.5 

6.5 

7.2

7.2 

7.9 

7.2 

7.2 

7.2 

815

969.5

Suspended sediment

Mean 

concentration 

(ppm)

44 

33

57 

8,220

Toos 

per 

day

0.4 

.4

1.1 

S36.100

36.119.0

March

14 

16 

17 

18 

18

ia

If 

16 

16 

16

17 

29 

58 

55 

52 

55 

154 

144 

140 

174 

219 

190 

129 

112 

108 

91 

69 

149 

144 

131 

118

2,504

18

45

380

681 

391 

302 

466

508 

386 

215 

224 

229 

239 

219 

288 

311 

220 

166

~

0.8

2.2

56

283 

152 

114 

219

300 

198 

75 

68 

67 

59 

41 

116 

121 

78 

53

2,186.0

s Computed by subdividing day.
160 COLORADO RIVER BASIN

LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ. Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

Day

10 ......

13 

1ft

20 

9ft

30 

31 

Total3 

9 

10 

19

13 

14 

15 

16 

20 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total

April

Mean

charge

(cfs)

112 

82 

59 

46 

37

33 

25 

17 

15 

14 

13 

11 

30 

41 

43

37 

28 

21 

17 

17

15 

14 

22 

17 

10

9.2 

25 

226 

88 

59

1,183.2

Suspended sediment

Mean 

concentration 

(ppm)

143 

192 

141 

197 

227

179 

166 

98 

260 

1,430 

740 

520 

640 

500 

429

294 

143 

100

58 

79

72 

131 

459 

10,700 

3,400

128 

1,630 

53,500 

35,600 

13,000

July

0.4 

.4 

.4 

.4 

60

773 

84 

24 

12 

52

17 

10 

5 

3 

2

2 

1 

1 

1 

.5 

.5 

3.7 

5.8 

3.4 

4.4 

4.4 

67 

61 

118 

51 

90

1,458.3

76 

38 

26 

45 

11,300

34,500 

18,000 

6,000 

590 

4,770

1,100 

164 

145 

99 

76

70 

93 

85 

93 

92

91 

94 

93 

79 

103 

125 

2,060 

1,360 

43,200 

49,000 

47,800

Total discharge (or year (cfsTotal load for year (tons). . . .

Tons 

per 

day

43 

43 

22 

24 

23

16 

11 

4.5 

11 

54 

26 

15 

52 

55 

50

29 

11 

5.7 

2.7 

3.6

2.9 

5.0 

27 

491 

92

3.2 

s!45 

s47,900 

s 8,970 

2,070

60, 207. 6

0.1 

(t) 

(t) 

(t) 

s4,030

;97,400 

s4, 310 

389 

19 

S791

50 

4.4 

2.0 

.8 

.4

.4 

.3 

.2 

.3

.1

.1

.9 

1.5 

.7 

1.2 

1.5 

S775 

s274 

521,900 

7,000 

314,600

151,553.0

May

Mean

charge

(cfs)

67 

56 

51 

43 

23

15 

13 

12 

11 

10 

9 

7 

4 

2 

1

7 

5 

2.5 

1.7 

2.2

2.4 

2.8 

2.8 

2.2 

2.8

3.0 

3.4 

3.7 

2.8 

1.1 

1.0

370>4

Suspended sediment

Mean 

concentration 

(ppm)

2,300 

880 

440 

300 

150

115 

87 

117 

50 

139

53 

58 

84

Tons 

per 

day

416 

133 

61 

35 

9.3

4.7 

3.1 

?.8 

1.5 

3.8

.7 

.4 

.6

683.1

August

21 

8.2 

4.9 

4.0 

12

13 

29 

12 

146 

31 

14 

12 

101 

40 

24

40 

283 

149 

56 

889

90 

30 

35 

23 

25 

12 

81 

131 

148 

45 

11

2,520.1

15,000 

460 

93 

70 

483

7,680 

6,700 

3,100 

15,000 

3,750

500 

82 

25, 400 

15,400 

6,000

6,520 

29, 300 

30,000 

9,500 

26,500

14,000 

3,000 

525 

440 

221 

220 

9,510 

18,600 

6,530 

3,500 

464

850 

10.2 

1.2 

.8 

s!9

s299 

525 

100 

s7,690 

s426

19 

2.7 

s8, 560 

si, 710 

389

s2, 140 

527,400 

515,300 

1,440 

s84,700

3,400 

243

s54 

27 

s!7 

7.1 

87,040 

s!2,700 

s5,830 

425 

14

181,339.0

June

Mean

charge

(cfs)

1.3

6.6 

174 

39 

18

11 

6.8 

6.3 

5.4 

4.9 

3 

2 

1 

.5 

.2

.1 

.1 

0 

0 

0

0 

0 

0 

.1 

0

.1 

.6 

1.5 

1.1 

.6

284.2

9.2 

4.9 

4.9 

3.7 

3.7

13 

5.4 

3.0 

2.8 

2.4

2.4 

3.7 

2.8 

3.7 

4.4

5.8 

4.9 

4.0 

3.7 

3.4

29 

1,860 

767 

80 

25 

16 

16 

18 

18 

15

2,935.8

Suspended sediment

Mean 

concentration 

(ppm)

58 

742 

55,200 

30,000 

10,000

290 

107 

61 

63 

62 

115 

86 

65 

70 

57

40 

49

25

34 

81 

73 

61 

29

Tons 

per 

day

0.2 

s!91 

s28,300 

s3,340 

486

8.6 

2.0 

1.0 

.9 

.8 

.9 

.5 

.2 

.1 

(t)

(t) 

(t) 

0 

0 

0

0 

0 

0 

(t) 

0

(t) 

.1 

.3 

.2 

(t)

32, 332. 9

September

170 

121 

116 

89

65

296 

320 

160 

117 

117 

132 

163 

93 

94 

123

108 

115 

98 

143 

130

2,920 

35,000 

28,700 

15,000 

8,000 

1,800 

140 

190 

190 

45

.............................................................. 1,2

4.2 

1.6 

1.5 

.9

.6

s21 

a4.7 

1.3 

.9 

.8

.9 

1.6 

.7 

.9 

1.5

1.7 

1.5 

1.1 

1.4 

1.2

s471 

s219,000 

175,800 

3,240 

540 

78 

6.0 

9.2 

9.2 

1.8

299,205.2

28, 296. 2 

!74,789.3

s Computed by subdividing day.

t Less than 0.05 ton.

a Computed from estimated concentration graph.
LITTLE COLORADO RIVER HAS IN Continued 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ. Continue

Particle-size analyses of suspended sediment, water year October 1951 to 

(Methods of analysis: B, bottom withdrawal tube; O, decantation; p, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically di

Date 

of 

collection

Oct. 2, 1951.....

Jan. 14, 1952 ...

June 1

Time

1:30 p.m. 

10:30 a. m. 

3:00 p.m.

9:30 a. m. 

2:00 p. m. 

4:30 p. m. 

3:30 p.m. 

5:30 p. m. 

5:30 p. m.

5:30 p. m. 

5:30 p. m. 

8:00 a. m. 

3:00 p.m. 

5:30 p. m. 

8:00 a. m.

10:30 a. m. 

9:50 a. m. 

10:30 a. m. 

10:30 a. m. 

6:00 p. m.

6:30 p. m. 

6:00 p. m. 

10:30 a. m. 

10:30 a. m. 

10:30 a. m.

8:00 a. m. 

6:00 p. m. 

6:00 p. m.

Water 

discharge 

(cfs)

298 

2,280 

1,520

1,500 

 749 

587 

1,460 

5,150 

5,150

5,150 

5,150 

9,940 

5,850 

4, ISO 

1,560

133 

95 

438 

438 

2.4

.8 

9.2

277 

277 

277

2,190 

25 

156

Water 

temperature 

(°F)

Suspended sedime

Concentration 

of sample 

(ppm)

41,800 

21,800 

9,960

7,460 

6,930 

5,550 

16,400 

16, 200 

16,200

16,200 

16,200 

15, 100 

14,000 

15,500 

 7,560

544 

117 

88,700 

88,700 

104

58 

123 

65,300 

65,300 

65,300

48,400 

3,330 

70,000

Concentration 

of suspension 

analyzed 

(ppm)

3,810 

6,790 

2,820

1,830 

6,130 

2,610 

1,820 

3,350 

3,800

3,420 

3,010 

2,520 

3,800 

4,960 

2,010

512 

260 

7,880 

8,330

3,070 

4,570 

10, 700

6,000 

4,140 

5,190

Percent finer th

0.002

66

28 

8

30 

18

48

1

64

0.004

75 

32 

31

25 

8 

18 

28 

33 

20

36 

27 

11 

18 

17 

20

70 

79 

59 

2

77

4 

72

58 

95 

79

0.008

85

41 

32

44 

39

69 

3

86

0.016

90 

56 

57

56 

51 

49 

48 

47 

43

53 

49 

37 

35 

32 

38

81 

44

95 

94 

94

81 

99 

96

0.03

9

6

5

6

6

8

8

9
LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT WOODRUFF, ARIZ. Continue

Particle-size analyses of suspended sediment, water year October 1951 to Septem

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, s

W, in distilled water; C, chemically dispersed; M, mechanically di

Date 

of 

collection

Aug. 5, 1952 .... 

Aug. 9 ..........

Sept. 22.........

Sept. 30.........

Time

12:15 p.m. 

7:30 p. m. 

11:00 a.m. 

11:00 a. m. 

11:00 a. m.

7:00 p. m. 

8:30 a.m. 

8:30 a. m. 

2:00 p. m. 

5:30 p. m. 

8:30 a. m.

5:30 p. m. 

9:00 a. m. 

2:00 p. m. 

5:30 p. m. 

5:00 p. m.

Water 

discharge 

(cfs)

2.4 

99 

309 

309 

309

129 

387 

2,390 

605 

67 

144

4.4 

901 

1,070 

4,140 

16

Water 

temperature 

CF)

Suspended sedime

Concentration 

of sample 

(ppm)

371 

14,300 

39,900 

39,900 

39,900

24,500 

41,400 

36,300 

24,700 

10,800 

32,100

33,200 

52,400 

44,900 

46

Concentration 

of suspension 

analyzed 

(ppm)

1,010 

4,400 

5,880 

4,560 

2,770

5,590 

4,500 

4,000 

3,120 

2,960 

3,910

4,690 

3,940 

5,340

Percent finer tha

0.002

55 

55

--

0.004

64 

79 

69 

11 

70

77 

69 

44 

67 

92 

79

84 

84 

48

0.008

75 

74

"

0.016

85 

98 

92 

91 

80

98 

91 

75 

91 

93 

100

82 

83 

71

0.03

8

8

"
LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT CAMERON, ARIZ.

LOCATION. At bridge on U.S. Highway 89 at Cameron, Coconino County, 12 miles upstream from gaging stati

DRAINAGE AREA. 26,500 square miles, approximately (above gaging station).

RECORDS AVAILABLE.--Chemical analyses: October 1950 to September 1952. 

Water temperatures: October 1952 to September 1953.

REMARKS. Values reported for dissolved solids are suns of determined constituents. Records of specific 

office at Albuquerque, N. Hex. Records of discharge for station near Cameron (below Moenkopi Wash) f

in WSP 1243. Appreciable inflow between sampling site and gaging station during periods of storm run

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-3, 6-9, 1951 a 

Jan. 1-10, 1952 .... 

Jan. 11-13,17-20 ... 

Jan. 21-24,26-27 ... 

Feb. 4-5, 7-10 ..... 

Feb. 11-16, 19-20 . . 

Feb. 21-23, 25-29 . .

Mar. 1-10 .........

Mar. 11,13,15,16,18 

Mar. 23-26, 28-29 

Mar. 31,Apr. 1-6,8-10 

Apr. 11-20.........

May 1-9 ...........

May 11-14, 17,20-23

Aug. 1, 3, 9-10 .... 

Aug. 21-23, 27-28 . .

Sept. 20-22 ........

Sept. 2f , 27 ........

Mean 

discharge 

(cfs)

Silica 

(810.)

23

13 

12 

15 

12 

12 

15

21 

12 

15 

15 

15 

19

17 

14 

24

22 

19 

17 

20 

23

Iron 

(Fe)

0.06 

.02 

.02 

.04 

.02 

.02 

.02

.14 

.08 

.18 

.10 

.20 

.05

.05 

.05 

.02

.30

Calcium 

(Ca)

43 

31 

30 

32 

32 

34 

46

89 

51 

47 

24 

19 

29

22 

31 

56

30 

41 

22 

9.0 

30

Magnesium 

(Mg)

8.6 

4.7 

5.9 

3.4 

5.7 

5.7 

10

19 

11 

11 

3.9 

3.9 

5.5

4.0 

5.2 

12

7.5 

9.7 

2.8 

3.8 

6.7

So- 

(Na)

21 

88 

96 

93 

91 

97 

141

217 

147 

99 

67 

73 

81

79 

88 

264

252 

202 

21 

12 

195

Potassium 

09

8 

5.2 

6.6 

8.8 

8.4 

8.2 

10

4.3 

3.1 

3.5 

2.5 

2.0 

2.5

2.4 

2.6 

4.1

3.0

3 

6 

27

Bicarbonate 

(HCO.)

323 

153 

168 

141 

114 

100 

106

174 

136 

161 

136 

118 

167

159 

116 

305

299 

302 

240 

209 

275

Carbonate 

(CO,)

0 

0 

0 

6 

0 

5 

8

0 

0 

0 

0 

0 

0

0 

0 

0

0 

0 

0 

5 

0

Sulfate 

(S04)

174 

53 

51 

54 

47 

51 

70

201 

80 

93 

35 

38 

49

31 

35 

22S

172 

147 

151 

7! 

13S

Chloride 

(Cl)

116 

74 

93 

86 

116 

128 

213

288 

204 

102 

52 

61 

57

52 

112 

190

158 

128 

122 

40 

110

Fluoride 

(F)

2.0 

.9 

.5 

.4 

.3 

.2 

.2

.4 

.3 

.4 

.3 

.3 

.5

.4 

.2 

.3

1.0 

.8 

1.2 

.4 

.4

Nitrate 

(NO,)

1.6 

1.6 

1.8 

2.1 

.4 

.3 

.4

4.6 

2.3 

3.0 

1.1 

.9 

3.0

2.2 

.8 

1.2

1.6 

.5 

1.1 

.5 

1.0

Boron 

(B)

0.30 

.10 

.08 

.15 

.20 

.07 

.05

.13 

.21 

.25 

.45 

.19 

.22

.20 

.09 

.64

.58

a No How at gaging station Oct. 18-30, Nov. 7-23, Dec. 10-14, May 28-June 7, June 18-July 7, July 18-24, Sept. 14-16.
164 COLORADO RIVER BASIN

LITTLE COLORADO RIVER BASIN Continued 

LITTLE COLORADO RIVER AT CAMERON, ARIZ. Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Temperature measurement, generally after 4 p. mj

Day

1

2

3

4

5

6

7

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

Oct.

60

60

58

60

60

62

~

_

..

~

__

--

Nov. Dec. Jan.

38

35

34

35

33

<i32

34

a 33

a 33

a 34

a38

a 40

a45

_

..

42

a 43

42

38

42

44

44

45

a45

a 45

--

Feb.

48

48

47

48

45

a43

43

41

41

40

48

48

_

_

48

48

47

47

44

45

_

52

48

48

Mar.

46

46

45

45

48

50

50

49

49

46

46

_

40

_

55

50

_

48

_

--

_

52

50

51

52

58

59

60

Apr.

61

54

56

60

60

a 60

_

58

a 56

56

53

58

a 58

58

61

63

63

63

58

a 56

6.2

64

63

65

64

65

a 58

58

55

65

60

May

65

65

68

70

70

68

67

67

67

~

70

70

68

65

_.

58

_

_

62

62

65

67

_

_

~

June July

_

..

_

a75

a 75

75

_

_

_

_

_

_

--

_

_

~

_

_

Aug.

78

81

..

_

_

80

80

_

_

_

..

_

_

_

~

81

80

78

_

..

a70

79

_

_

~

Sept.

_

_.

78

_

_

~

_

_

_

_

a 72

b60

70

_

76

~

71

_

_

_

~

a Observation made between 10 a. m. and 4 p. m. 

b Observation made before 10 a. m.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ.

LOCATION. At gaging station at Kaibab Bridge, a quarter of a mile upstream from Bright Angel Creek, 11 mi

County, 26 miles downstream from Little Colorado River, and 267 miles upstream from Hoover Dam. 

DRAINAGE AREA . 137,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1925 to November 1942, September 1943 to September 1952.

Water temperatures: October 1936 to October 1942, September 1943 to September 1952.

Sediment records: October 1925 to November 1942, September 1943 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 1,490 ppm (sum) Sept. 28-29; minimum, 326 ppm June 11-20.

Hardness: Maximum, 760 ppm Sept. 28-29; minimum, 218 ppm June 21-30.

Specific conductance: Maximum observed, 2,230 micromhos Sept. 28; minimum observed, 416 micromhos June 

Water temperatures: Maximum observed 83°F Aug. 5; minimum observed, 34°F several days during January.

Sediment concentrations: Maximum daily, 34,100 ppm Jan. 21; minimum daily, 318 ppm Dec. 18.

Sediment loads: Maximum daily, 3,260,000 tons May 8; minimum daily, 2,900 tons Dec. 18. 

EXTREMES, 1925-52. Dissolved solids: Maximum 1,890 ppm Sept. 21-30, 1934; minimum,225 ppm June 11-20, 19

Hardness: Maximum, 792 ppm Sept. 1-10, 1940; minimum, 127 ppm June 11-17, 1926.

Specific conductance (1937-52): Maximum observed 2,900 micromhos Sept. 6, 1940; minimum observed, 341 

Water temperatures (1936-52): Maximum observed 88°F July 17, 1944; minimum, freezing point on several 

Sediment concentrations: Maximum daily, 138,000 ppm Sept. 13, 1927; minimum daily 100 ppm on many days.

Sediment loads: Maximum daily, 27,600,000 tons Sept. 13, 1927; minimum daily, 497 tons July 22, 1934.

REMARKS. Records of specific conductance of daily samples available in district office at Albuquerque, N. 

on evaporation. Records of discharge for water year October 1951 to September 1952 given in WSP 1243.

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951.. 

Oct. 11-20 ......

Nov. 1-10.......

Nov. 11-20......

Nov. 21-26......

Dec. 1-3, 8-10 .. 

Dec. 11-20......

Dec. 21, 24-28 .. 

Jan. 1-10, 1952.. 

Jan. 11-20. ......

Jan. 21-31.......

Feb. 21-29......

Mar. 1, 3, 9-10 .

Mean 

discharge 

(cfs)

6,947 

6,988 

6,805 

9,205 

7,216 

7,152

7,112 

4,765 

5,138 

10, 230 

6,678 

11,790

7,487 

6,801 

6,326 

6,202

Silica 

(810.)

12 

13 

13 

14 

14 

14

12 

13 

14 

12 

12 

12

13 

12 

14 

15

Iron 

(Fe)

0.07 

.13 

.08 

.36 

.04 

.05

.04 

.04 

.04 

.04 

.04 

.05

.04 

.09 

.08 

.06

Calcium 

(Ca)

160 

154 

130 

162 

137 

129

124 

122 

138 

101 

124 

96

108 

118 

114 

109

Magnesium 

(Mg)

47 

51 

47 

48 

54 

49

44 

47 

54 

31 

51 

32

38 

45 

47 

49

Sodium 

(Na)

179 

176 

176 

175 

166 

162

180 

191 

196 

145 

177 

150

157 

163 

170 

169

Potassium 

(K)

5.6 

6.6 

6.0 

5.8 

4.4 

4.8

2.4 

2.4 

2.0 

7.2 

4.4 

6.9

7.3 

6.2 

5.6 

5.2

Bicarbonate 

(HCO.)

248 

256 

250 

248 

256 

250

268 

252 

272 

226 

248 

244

228 

258 

236 

232

Sultate 

(S04)

560 

534 

480 

577 

487 

460

438 

444 

492 

329 

465 

319

375 

398 

409 

415

Chloride 

(Cl)

143 

145 

142 

117 

135 

138

138 

172 

192 

116 

148 

120

135 

152 

180 

156

Fluoride 

(F)

0.3 

.2 

.3 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.3 

.2

.2 

.3 

 .3 

.3

Nitrate 

(NO,)

3.1 

4.1 

3.2 

4.2 

4.5 

4.0

3.3 

5.1 

6.5 

4.3 

4.5 

4.2

3.6 

5.3 

5.5 

5.6

Boron 

(B)

0.23 

.31

.20 

.17

.15

Dis

(res

Parts 

per 

million

1,300 

1,250 

1,150 

1,260 

1,160 

1,120

1,100 

1,160 

1,300 

877 

1,130 

891

990 

1,070 

1,080 

1,080
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued 

Chemical analyses, in parts per million, water year October 1951 to September 1

Data of collection

Mar. 11-20, 1952 

Mar. 21-22, 24-25 

28-29, 31......

Apr. 10-20......

June 11-20. ......

June 21 -SO.......

July 11-20.......

July 29-31, Aug. 1- 

10 ............

Aug. 21-31......

Sept. 11-20......

Sept. 28-29......

Weighted average

Mean 

discharge 

(cfs)

7,174

7,766 

19, 130 

33, 850 

56,930 

88,710 

97,180 

84, 870

88,940 

111,800 

81,550 

38,700 

25,740 

13, 420

14,460

12,840 

12, 940 

11,820 

7,435 

11, 570 

8,995

b 26, 420

Silica 

(SiO.)

13

13 

14 

13 

14 

14 

17 

18

15 

17 

14 

14 

18 

13

14

18 

17 

18 

15 

15 

13

15

Iron 

(Fe)

0.06

.09 

.04 

.03 

.18 

.4* 

.28 

.19

.27 

.30 

.17 

.37 

.17

.09

.06 

.12 

.13 

.10 

.07

0.22

Calcium 

(Ca)

118

115 

111 

93 

76 

88 

72 

70

87 

89 

68 

70 

74 

85

111

123 

133 

150 

121 

116 

222

84

Magnesium 

(Mg)

47

44

35 

29 

22 

17 

18 

17

18 

13 

13 

17 

20 

28

32

38 

39 

44 

43 

37 

50

23

Sodium 

(Na)

189

181 

137 

97 

59 

38 

28 

34

31 

21 

28 

42 

85

102

120 

117 

137 

137 

148 

1

84

Potassium 

(K)

7.8

6.3 

5.9 

4.7 

5.2 

5.1 

5.4 

4.8

4.3 

4.1 

5.7 

5.8 

5.8 

81

7.9

7.1 

7.1 

8.1 

8.5 

7.8 

90

5.3

Bicarbonate 

(HCO.)

240

236 

257 

225 

231 

215 

252 

232

216 

228 

218 

224 

222 

208

248

270 

278 

282 

284 

282 

244

233

Sulfate 

(SO,)

419

398 

355 

278 

154 

108 

77 

95

98 

88 

75 

109 

185 

221

295

355 

375 

461 

379 

381 

758

178

Chloride 

(Cl)

159

158 

93 

58 

33 

19 

17 

23

18 

14 

20 

29 

40 

87

82

94 

91 

95 

120 

102 

128

48

Fluoride 

(F)

0.3

.3 

.4 

.4 

.4 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2 

.2

.2

.3 

.5 

.5 

.5 

.5

0.3

Nitrate 

(NO,)

5.5

4.8 

5.6 

5.5 

3.4 

2.5 

2.5 

1.9

1.8 

1.2 

4.9 

.6 

2.3 

2.7

5.8

3.3 

4.5 

6.0 

3.8 

2.4 

7.1

2.9

Boron 

(B)

0.08

.14 

.06

.11 

.11

.21 

.20

~

D

(Re

Parts 

per 

million

1,100

1,040 

907 

708 

493 

388 

370 

388

387 

328 

332 

402 

504 

a 597

777

899 

942 

1,080 

969 

953 

a 1,490

547

a Sum of determined constituents.

b Represents 98 percent of runoff for water year October 1951 to September 1952.
COLORADO RIVER MAIN STEM 167

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ.--Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Pnce-daily temperature measurement generally between 6 a. m. and 11 a. m._7

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

Average

Oct.

69

68

66

58

58

63

61

62

59

64

68

68

62

61

80

60

80

60

59

59

56

56

56

56

55

a 57

56

55

56

55

80

Nov.

55

54

52

48

a 50

48

49

_

49

50

49

50

47

45

45

44

44

45

44

43

44

43

42

a 42

Dec.

43

44

42

41

a 40

40

38

37

36

36

37

38

37

_

37

a 38

38

37

36

37

a37

37

37

37

--

Jan.

_

a 38

36

34

a 34

34

34

34

a 34

34

34

a 35

35

36

36

38

37

a 38

a 40

42

38

38

38

42

_

40

40

40

40

37

Feb.

40

40

40

40

40

40

40

a 43

a 43

42

43

40

40

40

a 44

a 44

42

40

40

40

40

a 42

a 42

41

a 44

43

43

43

~

41

Mar.

44

42

42

42

..

42

_

b46

48

46

45

47

43

46

48

45

46

47

47

45

43

a45

45

45

46

47

49

51

a 52

53

46

Apr.

54

53

55

56

59

80

59

53

54

52

53

a 53

54

53

55

55

58

61

a 60

57

58

59

59

62

62

a 62

80

60

60

57

May

61

a 62

a 65

67

67

a 67

66

65

63

64

a 64

64

65

65

65

64

62

65

64

"

64

64

62

a68

67

67

68

68

66

a70

65

June

69

69

68

69

69

70

a71

b70

71

71

a7l

71

71

71

a71

71

69

71

72

73

73

73

73

73

73

70

70

69

72

72

71

July

73

74

69

76

a74

75

75

77

77

78

77

77

a77

77

77

77

78

77

81

80

81

82

82

82

82

82

82

80

79

79

79

78

Aug.

80

82

82

a 83

82

82

82

82

81

81

80

80

78

79

79

78

79

79

79

78

78

78

78

78

78

76

76

76

a77

77

79

Sept.

77

76

76

75

_

76

76

76

76

73

63

67

68

70

70

69

71

73

70

70

68

69

69

70

71

70

70

70

70

71

a Observation made between 11 a. m. and 6 p. m. 

b Observation made after 6 p. m.
168 COLORADO RIVER BASIN

COLORADO RIVER MAIM STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued 

Suspended sediment, water year October 1951 to September 1952

Day

2 ------

3 ......

g__ __ 

7 -.- 

8 

13 

18 -

Ifl

19 

20 

23 

25 

no

Total16 

20 

21 -..-.- 

22 

23 

24 ------ 

25 

26 ------ 

27 

28 

20 ------ 

30 ------ 

31 

Total

October

Mean

discharge

(cfs)

7,680 

10,800 

9,890 

6,830 

5,910

5,680 

5,490 

5,840 

5,750 

5,600 

5,680 

6,430 

7,570 

8,260 

7,640

7,090 

6,950 

6,990 

6,740 

6,530

6,390 

6,290 

6,150 

6,000 

6,110

6,070 

6,070 

6,250 

6,870 

8,260 

10,400

214,210

Suspended sediment

Mean 

concentration 

(ppm)

2,600 

17,000 

17,400 

21,800 

20,000

18,400 

10,500 

6,800 

4,530 

3,300 

2,400 

2,160 

2,520 

3,400 

2,120

1,680 

1,590 

1,600 

2,240 

2,600

3,600 

4,300 

4,300 

3,250 

2,050

1,500 

1,640 

1,260 

1,020 

2,100 

5,800

Tons 

per 

day

53,900 

s 597, 000 

s 487, 000 

»a 406, 000 

a 319, 000

282,000 

156,000 

107,000 

70,300 

49,900 

36,600 

37,500 

51,500 

75,600 

43,700

32,200 

29,600 

30,200 

40,600 

45,800

62,100 

73,000 

71,400 

52,600 

33, 800

24,600 

26,900 

21,300 

18,900 

46,800 

s 170, 000

3,553,600

January

8,210 

18,300 

13,700 

14, 100 

12,000

9,340 

7,640 

6,700 

6,350 

5,940 

5,740 

4,900 

4,360 

4,440 

4,660 

5,120 

6,200 

7,020 

7,540 

16,800

32,600 

15,900 

11,700 

10,000 

9,300

8,560 

8,020 

7,870 

7,870 

8,390 

9,510

298,780

5,640 

28,400 

15,800 

11,200 

9,720

6,400 

4,120 

3,400 

2,190 

2,060 

1,200 

900 

750 

800 

538

2,690 

4,600 

3,300 

2,850 

11,100

34,100 

20,200 

12,400 

10,300 

7,600

5,400 

4,200 

3,200 

2,500 

2,200 

2,600

~

a 125, 000 

51,530,000 

s 592, 000 

426,000 

315,000

a 161, 000 

85,000 

61,500 

37,500 

33,000 

18,600 

11,900 

a 8, 830 

9,590 

6,770 

s 41, 800 

77,000 

62, 500 

58,000 

i 747, 000 

33,130,000 

s 896, 000 

i 395, 000 

278,000 

191,000

a!25,000 

a 90, 900 

68,000 

53,100 

49, 800 

66,800

3,751, 590

November

Mean

discharge

(cfs)

12,200 

11,600 

11,800 

9,830 

8,440

7,900 

7,750 

7,580 

7,510 

7,440 

7,540 

7,380 

7,160 

7,090 

7,110

7,020 

7,280 

7,380 

7,160 

7,040

7,150 

7,160 

7,120 

6,810 

6,970

7,700 

6,900 

6,620 

6,830 

7,270

234,740

Suspended sediment

Mean 

concentration 

(ppm)

12,100 

9,050 

10,200 

11,600 

9,900

7,050 

4,950 

5,870 

5,900 

4,600

3,050 

2,150 

1,550 

1,230 

1,180

1,050 

1,030 

1,070 

957 

1,000

888 

860 

1,040 

776 

753

780 

1,050 

800 

810 

775

--

Tons 

per 

day

399,000 

283, 000 

a 325, 000 

a 308, 000 

226,000

150, 000 

104,000 

120,000 

120,000 

a 92, 400

a 62, 100 

42,800 

a 30, 000 

23, 500 

22,700

19,900 

20,200 

21, 300 

18,500 

19,000

17, 100 

16,600 

20,000 

14,300 

14,200

16,200 

a 19, 600 

a 14, 300 

a 14, 900 

15, 200

2, 569, 800

February

9,580 

8,610 

7,740 

7,280 

7,020

6,910 

6,900 

6,880 

6,910 

7,040 

6,980 

6,900 

6,700 

6,460 

6,700

6,970 

7,080 

6,980 

6,690 

6,550

6,570 

6,430 

6,460 

6,430 

6,340

6,200 

6,070 

6,180 

6,250

199, 810

2,600 

2,590 

1,600 

1,020 

700

730 

920 

860 

780 

680 

630 

880 

540 

880 

770 

820 

860 

910 

830 

665 

600 

686 

904 

643 

560

537 

626 

968 

874

67,300 

60,200 

33,400 

a 20, 000 

13, 300

13,600 

17,100 

16,000 

14, 600 

12,900 

11,900 

16,400 

9,770 

15,300 

13,900

15,400 

16,400 

17, 100 

15,000 

11,800 

14, 200 

11,900 

15, 800 

11,200 

9,590

8,990 

10,300 

16,200 

14,700

524, 250

December

Mean

discharge

(cfs)

7,240 

6,980 

6,710 

6,350 

6,390

6,730 

7,600 

7,220 

7,320 

7,200 

7,010 

6,590 

5,960 

5,180 

4,540

4,120 

3,780 

3,380 

3,290 

3,800

4,430 

4,780 

4,990 

5,260 

5,420

5,360 

5,180 

5,180 

5,640 

6,870 

7,640

178, 140

Suspended sediment

Mean 

concentration 

(ppm)

931 

1,190 

879 

700 

1,000

1,050 

1,000 

1,550 

1,150 

1,430 

954 

776 

700 

669 

473

400 

356 

318 

465 

403

398 

400 

400 

363 

403

379 

361 

374 

600 

1,500 

4,600

--

Tons 

per 

day

18,200 

22,400 

15,900 

a 12, 000 

a 17, 300

19,100 

20,500 

30,200 

22,700 

27,800

18,100 

13,800 

a 11, 300 

9,360 

5,800

a 4, 450 

3,630 

2,900 

4,130 

4,130

4,780 

a 5, 160 

a 5, 390 

5,160 

5,900 

5,480 

5,050 

5,230 

a 9, 140 

a 27, 800 

a 94, 900

457,670

March

6,200 

6,040 

6,080 

6,070 

6,150

6,530 

6,590 

6,450 

6,320 

6,210 

6,210 

6,350 

6,620 

7,390 

8,080

8,280 

7,880 

7,180 

6,880 

6,870 

7,340 

7,780 

7,960 

8,260 

7,930

7,740 

7,460 

7,210 

7,150 

7,280 

8,690

219, 180

560 

581 

529 

852 

850

870 

879 

870 

869 

782 

1,290 

1,230 

1,200 

979 

1,300 

1,920 

1,980 

2,950 

3,270 

2,240

1,970 

1,780 

2,520 

2,850 

4,270

3,640 

2,830 

2,300 

2,030 

1,560 

2,410

--

9,370 

9,470 

8,680 

14,000 

a 14, 100

a 15, 300 

15,600 

a 15, 200 

14,800 

13,100 

21,600 

21,100 

21,400 

19,500 

28,400

42,900 

42,100 

57,200 

60,700 

41,500

39, 000 

37,400 

54,200 

63,600 

91,400

76,100 

57,000 

44,800 

39,200 

30,700 

56,500

1,075,920

s Computed by subdividing day.

a Computed from estimated concentration graph.
COLORADO RIVER MAIN STEM 

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued 

Suspended sediment, water year October 1951 to September 1952 Continued

169

Day

2 

3 ......

s ......

8 ------

14 

20 

21 ...

24

25 

27 

21 ...

Total9 .....

10 

11 ----- 

12 ----- 

13 .....

15 

17 

1ft

19 ----- 

20 

21 ----- 

22 ----- 

23 ----- 

24 

25 .....

26 

27- 

28 ~ 

29 

30 

21- 

Total

April

Mean

discharge

(cfs)

11,000 

12,400 

16,300 

17,600 

17,900

20,400 

23,700 

26,500 

26,400 

28,400

29,600 

37,000 

36,100 

34,000 

31,700

30,000 

30,200 

33,200 

38,000 

44,200

48,000 

49,900 

53,000 

54,100 

55,700 

56,300 

57,400 

60,200 

63,700 

71,000

1,113,900

Suspended sediment

Mean 

concentration 

(ppm)

6,300 

8,480

11,400 

11,200

13,200 

15,900 

15,600 

14,100 

14,800

13,500 

16,500 

16,400 

15,400 

14,900

13,400 

12,200 

11,500 

11,500 

11,900 

12,500 

12,600 

12,400 

11,400 

10,400 

9,300 

9,400 

9,300 

10,100 

9,950

July

44,600 

42,300 

41,400 

40,600 

39,300 

37,200 

34,400 

34,400 

35,600 

37,200

35,600 

32,400 

30,200 

27,700 

25,900

24,100 

22,300 

21,000 

19,700 

18,500

17,400 

16,400 

15,900 

15,200 

14,200 

13,700 

13,200 

12,600 

12,200 

12,400 

14,200

801,800

1,780 

1,980 

1,430 

1,590 

1,500

1,380 

1,370 

1,710 

2,220 

3,350

3,150 

2,600 

2,750 

2,500 

1,850

1,800 

1,420 

1,480 

930 

890

708 

533 

470 

460 

532

430 

380 

400 

1,400 

580 

1,650

Tons 

per 

day

187,000 

284,000

542,000 

541,000

727,000 

,020,000 

,120,000 

,010,000 

,130,000

,080,000 

,650,000 

,600,000 

,410,000 

,280,000

1,090,000 

995,000 

,030,000 

,180,000 

,420,000

1,620,000 

,700,000

1,670,000 

1,560,000 

1,410,000 

1,460,000 

1, 510,000 

1,740,000 

1,910,000

J6,117,000

214,000 

226,000 

160,000 

174,000 

159,000 

139, 000 

127,000 

159,000 

213,000 

336,000

303,000 

227,000 

224,000 

187,000 

129,000

117,000 

a 85, 500 

83,900 

49,500 

44,500

33,300 

23,600 

20,200 

18,900 

20,400 

15,900 

13,500 

13,600 

46,100 

19,400 

63,300

1,645,600

May

Mean

discharge

(cfs)

78,100 

73,500 

69,100 

69,100 

73,500

84,200 

95,600 

105, 000 

110,000 

109,000

107,000 

105,000 

100,000 

94,600 

93,400

91,900 

93,400 

97,100 

97,100 

91,900

83,500 

77,400 

71,600 

68,500 

65,400 

61,300 

57,400 

54,600 

55,700 

57,400 

60,800

2,552,300

Suspended sediment

Mean 

concentration 

(ppm)

9,100 

7,890 

8,350

9,600 

10,600 

11,500 

10,500 

9,950

7,950 

7,400

6,250 

6,360 

6,030 

6,270 

6,590 

6,120 

5,620

4,820 

4,480 

5,360 

4,010 

4,170 

4,380 

3,480 

4,100 

3,640 

3,310 

4,080

Tons 

per 

day

,850,000

2,280,000

,700,000 

1, 470, 000 

,660,000

2,180,000 

2,740,000 

3,260,000 

3,120,000 

2,930,000

2,300,000 

2,100,000

1 goo 000

1 730 000

11,390,000

936,000 

1,040,000 

742,000 

a 736, 000 

725,000 

539,000 

604,000 

547,000 

513,000 

670, 000

19,452,000

August

15,900 

16,400 

16,200 

15,700 

15,100

14,800 

14,800 

14,000 

13, 300 

13,000

11,800 

11,400 

11,000 

11,500 

11,600

12,400 

16,500 

15,500 

13,400 

13,100 

13,100 

12,600 

12,200 

11,500 

11,300 

11,400 

13,700 

14,400 

14,100 

14,000 

14,000

419,900

2,650 

4,450 

5,800 

5,950 

6,350 

4,700 

4,000 

3,150 

2,900 

2,020

2,150 

2,200 

2,500 

1,500 

1,820

2,150 

1,900 

2,400 

2,750 

6,400 

4,600 

2,650 

4,720 

5,350 

4,780

3,250 

4,000 

3,220 

9,180 

7,700 

10, 300

114,000 

197,000 

254,000 

a 252, 000 

259,000 

188,000 

160,000 

119,000 

104,000 

70,900

68, 500 

67,700 

74,200 

46,600 

58,000

72,000 

84,600 

100,000 

99,500 

226,000 

163,000 

90,200 

155,000 

166,000 

146,000 

100,000 

148,000 

125,000 

349, 000 

291,000 

389,000

4,737,200

June

Mean

charge 

(cfs)

65,400 

69,700 

74,200 

80,100 

82,800

91,200 

102,000 

104,000 

107,000 

113,000

117,000 

120,000 

120,000 

121,000 

119,000

114,000 

109,000 

105,000 

102,000 

91,200

81,400 

74,800 

71,600 

67,900 

61,900 

57,900 

54,100 

51,000 

48,900 

46,000

2,623,100

Suspended sediment

Mean 

concentration 

(Ppm)

3,720 

3,780 

4,190 

4,900 

5,710

5,430 

6,150 

5,570 

5,010 

5,080

5,250 

5,100 

4,490 

4,380 

4,340

4,130 

3,990 

3,540 

3,510 

2,900

3,100 

3,230 

2,310 

2,090 

2,650 

2,200 

2,920 

2,350 

1,780 

2,000

Tons 

per 

day

657,000 

711,000 

839,000 

,060,000 

,280,000

,340,000 

,690,000 

,560,000 

,450,000 

,550,000

,660,000 

,650,000 

,450,000 

,430,000 

,390,000

,270,000 

,170,000 

1,000,000 

967,000 

714,000 

681,000 

652,000 

447,000 

383,000 

443,000 

344,000 

427,000 

324,000 

232,000 

248,000

29,019,000

September

13,700 

13,700 

13,900 

13,300 

12,800

11,800 

10,800 

9,880 

9,390 

8,930

8,680 

8,210 

7,820 

7,660 

7,330

7,210 

7,080 

6,850 

6,660 

6,850

12,900 

12,000 

10,100 

12,300 

14,300

10,200 

9,220 

8,930 

9,060 

8,740

300,300

10,100 

8,380 

8,150 

7,750 

7,150 

6,200 

5,140 

4,800 

6,180 

5,800

5,050 

3,180 

3,600 

2,900 

2,050

1,600 

1,220 

795 

600 

600

16,600 

22,600 

10,500 

13,200 

18,200

9,850 

17,400 

23,900 

11,800 

6,400

374,000 

310,000 

306,000 

278,000 

a 247 ,000

a 198, 000 

150,000 

128,000 

157,000 

140,000

118,000 

70,500 

76,000 

60,000 

40,600

31,100 

23,300 

14,700 

10,800 

11,100 

s 923, 000 

s 749, 000 

286,000 

s 445, 000 

s711,000 

s 274, 000 

433,000 

576,000 

289,000 

151,000

7,581,100

Total discharge for year (cfs-days)............................................................ 9,156,160

Total load for year (tons)..................................................................... 148,484,730

S Computed by subdividing day.

a Computed from estimated concentration graph.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ.--Contin

Particle-size analyses of suspended sediment, water year October 1951 to S

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically d

Date 

of 

collection

Oct. 6, 1951.....

Nov. 8 ..........

Nov. 19..........

Dec. 2 ..........

Dec. 17. .........

Dec. 26. .........

Tan. 2, 1952.....

Jan. 2 ..........

Jan. 4 ..........

Jan. 18..........

Feb. 9 ..........

Feb. 18 .........

Feb. 28 .........

Mar. 31.........

Apr. 12..........

Apr. 17 .........

Apr 23

Apr. 28 .........

Time

9:20 a. m. 

8:30 a. m. 

9:00 a. m. 

8:30 a. m. 

8:40 a. m. 

8:20 a. m.

9:50 a.m. 

8:45 a. m. 

10:00 a. m.

1:30 p. m. 

1:30 p. m. 

1:30 p. m. 

1:30 p.m. 

8:40 a. m. 

9:20 a. m.

11:15 a. m. 

8:45 a. m. 

8:30 a. m. 

8:40 a. m. 

8:40 a. m.

10:15 a.m. 

8:45 a. m. 

2:15 p.m. 

9:45 a. m. 

8:30 a. m. 

8:45 a.m.

Water 

discharge 

(els)

5,710 

7,160 

6,000 

12,600 

7,600 

7,260

7,010 

3,860 

5,440

21,300 

21,300 

21,300 

21,300 

14, 900 

7,020 

39,600 

39,600

6,850 

7,050 

6,140 

6,250 

8,260

20,800 

26,900 

37,400 

30,200 

53,600 

60.200

Water 

temperature 

<°F)

Suspended sedim

Concentration 

of sample 

(ppm)

19,100 

1,490 

3,370 

11,600 

5,380 

613

1,050 

304 

280

29,400 

29,400 

29,400 

29,400 

10,600 

3,130 

36,000 

36,000

965 

962 

1,130 

2,260

12,500 

16,400 

17,600 

11,400 

12,100 

8.850

Concentration 

of suspension 

analysed 

(ppm)

4,700 

3,420 

5,310 

2,470 

1,810 

1,680

1,660 

640

3,210 

3,040 

3,320 

3,000 

3,320 

3,970 

2,940 

2,770

1,600 

1,800 

1,950 

2,830 

5,160

4,890 

5,420 

5,630 

4,120 

6,620 

3.110

Percent finer t

0.002

52

68

28 

0 

29 

2

23 

27

53 

52 

57

0.004

84 

60 

85 

52 

78 

58

59 

70

30 

3 

38 

4 

50 

67 

35 

31

62 

64 

67 

54 

65

39 

27 

21 

33 

33 

24

0.008

73

75

43 

18 

46 

9

36 

35

70 

71 

77

0.016

97 

86 

97 

74 

98 

79

83 

86

55 

55 

53 

30 

66 

83 

42 

40

78 

78 

86 

59 

81

55 

42 

34 

50 

37 

37

0.0
Hay 7, 1952...... 

May 7 ...........

May 21 ..........

June 6 ..........

Aug. It.........

Sept. 11.........

Sept. 22.........

9:40 a. m. 

9:40 a. m. 

9:00 a. m. 

9:00 a. m. 

7:30 a. m. 

11:00 a. m.

8:30 a. m. 

10:00 a. m. 

8:45 a. m. 

8:40 a. m. 

8:30 a. m. 

8:45 a. m. 

10:30 a. m.

95,600 

95,600 

84,200 

89,000 

120,000 

51,000

34,800 

20,000 

12,700 

11,900 

11,200 

8,710 

11,200

a 9, 430 

b 10, 200 

c4,600 

c 5, 520 

4,060 

2,180

1,540 

999 

458 

2,020 

2,790 

5,140 

20,700

3,270 

3,560 

5,380 

4,900 

2,120

2,780

3,430 

7,150 

5,250 

3,420

--

12 

11 

15 

13 

15

28

75 

77 

74 

58

--

20 

19 

23 

19 

20

43

91 

96 

97 

79

a Upper hall of vertical, 

b Lower hall of vertical, 

c Upper 20 feet of flow.
BRIGHT ANGEL CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN BRIGHT ANGEL CREE

Chemical analyses, in parts per million, April to Aug

Date of collection

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

BRIGHT ANGEL CREEK NEAR GRAND CANYON

Apr. 16, 1952........

Aug. 4..............

110

23.4 42 21 4.9 223 1

7.4

14

5.2 1

3 1 0.4
VIRGIN RIVER BASIN 

VIRGIN RIVER AT VIRGIN, UTAH

LOCATION. At gaging station, 1J miles southwest of Virgin. Washington County, and about 2 miles downst

DRAINAGE AREA. 934 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1952.

Water temperatures: October 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 590 ppm Aug. 21-31; minimum, 245 ppm May 1-10.

Specific conductance: Maximum daily, 2,820 micromhos July 24; minimum daily, 383 micromhos May 7.

Water temperatures: Maximum observed, 87°F July 26; minimum observed, freezing point on several days 

EXTREMIS, 1950-52. Dissolved solids: Maximum, 940 ppm Aug. 23-24, 29, 1951; minimum, 245 ppm May 1-10

Specific conductance: Maximum daily, 2,820 micromhos July 24, 1952; minimum daily 383 micromhos May 

Water temperatures: Maximum observed, 88°F July 18, 28-30, 1952; minimum observed, freezing point on 

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

Salt Lake City, Utah.

Chemical analyses, In parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951..

Oct. 21-31 ......

Dec. 1-10 .......

Jan. 1-10, 1952.. 

Jan. 11-20 ......

Feb. 21-29 ......

Mar. 11-20......

May 1-10 .......

May 21-31 .......

Mean 

discharge 

(cts)

79.6 

81.4 

109 

106 

109 

129

121 

123 

419 

125 

172 

165

151 

144 

140 

186 

191 

253

536 

637 

1,322 

1,576 

944 

660

Silica 

(310,)

15 

13

13

12 

12

12 

11

8.0 

8.6 

8.6 

12

Iron 

(Fe)

Calcium 

(Ca)

83 

87

81

77 

80

78 

79

62 

54 

S3 

54

Magnesium 

(Mg)

31 

33

35

34 

29

33 

30

24 

17 

14 

14

Sodium 

(Na)

Potassium 

(K)

59 

56

45

51 

59

46 

33

60

14 

12 

12 

13

Bicarbonate 

(HCO,)

207 

215

234

236 

220

232 

216

198 

184 

182 

193

Sultate 

(SO,)

190 

197

163

152 

175

149 

191

90 

60 

47 

44

Chloride 

(Cl)

66 

65

58

64 

58

59 

52

18 

10 

10 

10

Fluorlde 

(F)

Nitrate 

(NO,)

1.7 

1.5

1.5

1.8 

1.7

1.7 

1.9

2.9 

3.4 

3.7 

2.3

Boron 

(B)

0.10 

.07

Di

(res

Parts 

per 

million

584 

586 

534 

537 

536 

508

532 

522 

527 

579 

542 

527

504 

817 

520 

502 

578 

522

380 

336 

266 

245 

252 

264
VIRGIN RIVER BASIN Continued

VIRGIN RIVER AT VIRGIN, UTAH Continued 

Chemical analyses, in parts per million, water year October 1951 to September 19

Date of collection

June 1-10, 1952 . . 

June 11-20 ......

June 21-30 ......

July 1-10 .......

July 21-23, 26-31

Aug. 1-10.......

Aug. 11-20......

Sept. 11-20 ..... 

Sept. 21-30 .....

Weighted average

Mean 

discharge 

(cfs)

428 

176 

129 

122 

94.7 

111 

123 

86.0

82.7 

78.3 

115 

76.5 

79.8 

104

b281

Silica 

(SiO.)

13 

13 

11 

13 

13 

13 

16 

13

13 

13

12

--

Iron 

(Fe)

Calcium 

(Ca)

62 

63 

59 

69 

76 

78

80 

76

78

--

Magnesium 

(Mg)

18 

24 

27 

27 

29 

29

31 

31

33

-

Sodium 

(Na)

Potassium 

(K)

29 

37 

51 

49 

49 

51

55 

54

60

"

Bicarbonate 

(HCO.)

205 

209 

200 

204 

220 

216 

199 

193

209 

208

210

--

Sulfate 

(S04)

84 

105 

128 

145 

150 

159 

1,600 

481

183 

167

186

--

Chloride 

(Cl)

25

39 

50 

50 

55 

57 

69 

61

59 

63

67

--

Fluoride 

(F)

Nitrate 

(NO,)

1.0 

1.4 

1.0 

.9 

.9 

1.2 

2.4 

.6

1.4 

1.4

1.6

--

Boron 

(B)

0.11

-

Disso

(resid

Parts 

per 

million

344 

401 

441 

477 

509 

520

550 

521 

590 

536 

553 

580

378

a Mot included for computation of weighted averages.

b Represents 99.8 percent of runoff for water year October 1951 to September 1952.
VIRGIN RIVER BASIN 175

VIRGIN RIVER BASIN Continued

VIRGIN RIVER AT VIRGIN, UTAH.--Continued

Temperature (°F) of water, water year October 19S1 to September 1992

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

81

Average

Oct.

72

71

70

66

64

71

72

72

71

69

68

65

60

62

62

64

67

65

74

75

72

69

67

64

57

59

61

60

58

62

60

66

Nov.

58

56

54

55

54

53

55

54

55

53

53

52

53

51

49

47

45

47

50

43

47

44

42

40

86

88

42

43

42

39

--

48

Dec.

39

43

37

88

43

35

32

_

32

88

35

40

40

39

85

39

89

40

84

33

32

82

86

~

42

44

40

45

40

35

88

Jan.

34

31

31

31

32

31

35

33

31

31

35

87

36

86

38

39

40

39

37

37

86

89

40

41

40

37

36

37

35

40

36

Feb.

37

40

85

34

39

39

35

37

86

38

37

QQ Otf

35

88

83

89

38

43

37

43

40

43

44

48

45

53

50

50

_

~

40

Mar.

__

43

49

47

52

47

41

45

53

45

42

47

45

50

47

41

46

47

51

47

46

49

50

50

56

58

57

58

57

54

59

49

Apr.

58

59

59

60

60

57

53

55

56

48

48

60

59

58

58

59

60

54

55

54

56

57

60

55

52

53

43

50

48

58

55

May

58

58

56

58

57

57

56

55

56

58

58

57

58

52

55

54

54

58

68

62

63

68

68

68

62

60

61

62

64

61

59

June

74

59

57

67

70

71

73

72

70

71

74

72

73

60

74

74

75

75

73

75

74

74

70

_

73

69

72

75

76

77

71

July

77

79

79

77

78

79

80

79

75

78

75

75

79

81

81

80

80

82

79

81

82

84

85

81

85

87

86

78

76

80

82

80

Aug.

82

84

86

85

81

82

81

81

82

82

82

84

79

80

82

_

84

79

79

80

77

78

78

78

79

70

75

72

79

78

79

80

Sept.

76

80

78

77

76

75

79

74

73

71

70

67

70

70

70

73

72

75

69

66

66

73

72

73

74

73

71

71

70

71

«

72
VIRGIN RIVER BASIN Continued 

WASHINGTON FIELDS CANAL NEAR WASHINGTON, UTAH

LOCATION. At gaging station, about 1| miles southeast of Washington, Washington County.

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1952.

REMARKS. Values reported for dissolvsd solids are sums of determined constituents. No records of disch

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1, 9, 25, 30, 

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

Nov. 6, 13, 19, 27 

Dec. 3, 12, 19....

Jan. 7, 14, 22, 29,

Feb. 4, 11, 18, 25 

Mar. 4, 10, 20 ... 

Mar. 31 .........

Apr. 7, 14, 22, 28 

May 5, 13, 23. ....

June 9, 17........

July 1, 11, 18 .... 

July 25. ..........

Aug. 2, 7, 16, 22, 

29. .............

Sept. 5, 15, 19, 26

Mean

discharge 

(cfs)

Silica 

(SiO.)

24 

19

18 

8.8

17

16 

15 

10

11 

11

13 

19 

19 

21 

20

26 

26

Iron 

(Fe)

Calcium 

(Ca)

185 

144

141 

98

141

131 

110 

82

73 

71

94 

110 

142 

166 

662

211 

187

Magnesium 

(Mg)

59 

52

49 

20

45

45 

38 

25

21

17

27 

37 

48 

57 

78

76 

76

Sodium 

(Na)

Potassium 

(K)

348 

246

215 

93

197

207 

180 

72

42 

40

84 

173 

273 

330 

336

355 

413

Bicarbonate 

(HCO,)

238 

266

280 

168

272

278 

272 

200

206 

205

244 

a 264 

248 

275 

242

264 

246

Sulfate 

(S04 )

564 

399

362 

264

352

321 

300 

175

110 

85

151 

256 

388 

475 

1,820

596 

581

Chloride 

(Cl)

480 

335

292 

82

265

282 

202 

82

52 

53

120 

224 

380 

455 

430

545 

615

Flnoride 

(F)

Nitrate 

(NO,)

2.2 

2.8

3.1 

1.6

3.0

3.4 

1.2 

2.2

2.3 

2.6

3.0 

4.1 

3.9 

4.3 

3.3

6.8 

4.8

Boron 

(B)

0.89 

43

.59

Diss

Parts 

per 

million

1,780 

1,330

1,220 

650

1,150

1,140 

980

547

413 

381

612 

953 

1,380 

1,640 

3,470

1,950 

2,020

a Includes equivalent of 18 parts per million of carbonate (CO,).
VIRGIN RIVER BASIN Continued 

SANTA CLARA RIVER ABOVE WINSOR DAM, NEAR SANTA CLARA, 

LOCATION.--At gaging station 2 miles upstream from Winsor Dam, 2} miles downstream from Sandy Wash, 8 

west of Santa Clara, Washington County.

DRAINAGE AREA. 338 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1951 to September 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of discharge for 

1243.

(r«v.) _ _______Chemical analyses, in parts per million, water year October 1951 to Sept

Date of collection

Oct. 9, 25, 30, 1951

Nov. 6, 14, 19, 28

Dec. 3, 13, 21 ...

Jan. 2, 7, 14, 21,

28, 1952 .......

Feb. 4, 11, 19, 25

Mar. 4, 10,17, 20,

31 .............

Apr. 6, 15, 23, 28

May 12, 20, 31 ...

June 9, 18, 23, 30

July 11, 18, 25...

Aug. 1, 7, 16, 22,

29

Sept. 4, 12, 19, 28

Mean 

discharge 

(cfs)

11.0

11.8

12.7

12.1

15.2

75.0

192

76.7

39.5

26.0

22.6

19.8

Silica 

(810.)

35

34

34

32

32

32

22

20

27

29

32

31

Iron 

(Fe)

Calcium 

(Ca)

51

58

61

57

62

54

39

32

33

33

37

42

Magnesium 

(Mg)

20

20

20

19

19

17

12

11

11

12

15

15

Sodium 

(Na)

16

7

22

23

21

14

9

8

16

15

15

17

Potassium 

(K)

1

4

7

Bicarbonate 

(HCO.)

208

210

248

238

240

212

171

132

148

151

166

188

Sulfate 

(S04)

35

32

37

35

37

27

14

19

20

21

24

24

Chlorlds 

(Cl)

26

26

28

26

30

23

9

11

13

14

17

Fluoride 

(F)

Nitrate 

(NO,)

0.2

.1

.8

1.1

1.3

1.3

.9

.9

.4

.7

.6

.7

Boron 

(B)

0.20

.-

.08

__

_____

--

D

(re

Parts 

per 

million

28

28

32

31

32

a 97

a. At 

18

17

20

a 19

22

23

a Sum of determined constituents.
VIRGIN RIVER BASIN Continued 

SANTA CLARA RIVER AT ST. GEORGE, UTAH

LOCATION. At gaging station half a mils above mouth and 2 miles south of St. George, Washington Count

RECORDS AVAILABLE. Chemical analysss: October 1950 to September 1952.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of discha

given in WSP 1243.

Chemical analyses, In parts per million, water year October 1951 to Se

Date of collection

Oct. 25, 29, 1951 

Nov. 5, 13, 19 ...

Dec. 3, 12, 19 ..

Jan. 7, 14, 21,

Feb. 4, 12,18, 28. 

Mar. 3 ..........

Mar. 10, 18, 24..

Apr. 1, 7, 14, 

22 28 ... .

May 13, 21, 31 ...

June 25 30

July 11, 18, 26 ..

Aug. 2,7,10,22,29.

Sept. 15, 21, 25..

Mean 

discharge 

(cfs)

0.9 

.4 

2.9 

4.2 

145 

75.0

14.0 

10.4 

15.0 

28.7 

210

156 

70.0 

34.7 

37.0 

3.8 

4.2

3.0 

27.0 

1.7 

1.8 

13.1

Silica 

(SiO.)

38 

38 

19 

17 

10 

21

31 

32 

17 

16 

21

21

22 

27 

45 

38

44 

22 

43 

52 

18

Iron 

(Fe)

Calcium 

(Ca)

299 

408 

163 

182 

438 

97

152 

165 

172 

99 

OS

60

103 

90 

372 

256

348 

145 

384 

328 

264

Magnesium 

(Mg)

74 

107 

43 

49 

42 

17

43 

44 

50 

32 

13

15

29 

24 

108 

80

111 

41 

128 

130 

73

Sodium 

(Na)

Potassium 

(K)

103 

125 

52 

44 

23 

23

38 

59 

62 

37 

16

14

34 

23 

91 

63

84 

63 

69 

140 

34

Bicarbonate 

(HCO.)

346 

432 

296 

320 

246 

212

298 

323 

333 

272 

191

185 

162 

219 

217 

426 

362

395 

252 

406 

338 

318

Sulfate 

(S04)

863 

1,200 

374 

410 

1,040 

156

324 

375 

412 

177 

71

68 

67 

223 

157 

1,060 

696

1,030 

378 

1,130 

1,200 

676

Chloride 

(Cl)

66 

86 

45 

44 

23 

17

40 

46 

47 

36 

13

12 

14 

26 

21 

83 

59

79 

43 

88 

93 

49

Fluoride 

(F)

Nitrate 

(NO,)

0.2 

.0 

.9 

.8 

.2 

2.7

1.6 

1.7 

1.8 

1.8 

2.5

1.2

1.0 

1.2 

1.2 

.6

.9 

8.1 

1.0 

.6 

1.8

Boron 

(B)

0.42 

16

.46

Par

pe

mi

lio

1,6

2,1

8

9

1,7

4

7

8

9

5

2

2

5

4

1,9

1,3

1,8

8

2,0

2,1

1,2
VIRGIN RIVER BASIN--Continued 

VIRGIN RIVER NEAR ST. GEORGE, UTAH

LOCATION. At gaging station 8 miles southwest of St. George, Washington County. 

RECORDS AVAILABLE.--Chemical analysss: October 1950 to September 1952. 

REMARKS. Values reported for dissolved solids are sums of determined constituents, 

given in WSP 1243.

Records of disch

Chemical analyses, In parts per million, water year October 1951 to Se

Date of collection

Oct. 1, 29, 1951.. 

Nov. 6,13, 19, 27. 

Dec. 4, 12, la...

Jan. 1, 7,21,28,1952

Feb. 4,11, 18, 25. 

Mar. 3, 17, 24...

Apr. 8, 14, 22 ... 

May 1, 5, 13, 21 .

June 17, 24 .....

Aug 29

Sept. 25 .........

Mean 

discharge 

(cfs)

95.5 

93.8 

137 

3,280 

226

156 

269 

986 

1,103 

1,619 

430

252 

22.0 

4.1 

2.3 

130 

31.0

Silica 

(S10,)

20 

20 

37 

7.2 

36

18 

15 

14 

13 

8.2

23 

25 

32 

22 

29

Iron 

(Fe)

Calcium 

(Ca)

397 

237 

212 

124 

206

170 

126 

127 

96 

70

136 

190 

232 

261 

651 

398

Magnesium 

(Mg)

67 

73 

64 

22 

49

55 

56 

28 

27 

19

36 

69 

90 

109 

90 

103

Sodium 

(Na)

Potassium 

(K)

301 

299 

222 

33 

163

233 

165 

30 

52 

43

125 

288 

324 

425 

249 

368

Bicarbonate 

(HCO,)

220 

258 

268 

162 

252

264 

262 

178 

206 

203 

220

248 

218 

208 

170 

288 

229

Sulfate 

(S04)

1,140 

733 

568 

284 

502

489 

356 

244 

186 

109 

201

296 

629 

777 

1,020 

1,780 

1,280

Chloride 

(Cl)

390 

400 

326 

30 

240

303 

222 

68 

70 

45 

127

172 

388 

475 

580 

315 

490

Fluoride 

(F)

Nitrate 

(NO,)

2.8 

3.3 

4.3 

.6 

3.1

2.9 

7.1 

2.3 

2.2 

1.8

6.2 

4.6 

3.7 

3.6 

3.7 

5.8

Boron 

(B)

0.81 

.36

Pa

p

m

li

2

1

1

1

1

1

1

2

2

3

2
VIRGIN RIVER BASIN Continued 

VIRGIN RIVER AT LITTLEFIELD, ARIZ.

LOCATION. At gaging station,three-eighths of a mile downstream from Beaverdam Wash, three-eighths of a 

36 miles upstream from water line 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 1952.

Water temperatures: October 1947 to September 1952.

Sediment records: October 1947 to September 1952. 

EXTREMES, 1951-52. Specific conductance: Maximum daily, 3,940 micromhos Aug. 26; minimum daily, 734 m

Water temperatures: Maximum observed, 89°F Aug. 13, 17; minimum observed, 40°F Jan. 1.

Sediment concentrations: Maximum daily, 55,600 ppm Sept. 22; minimum daily, 228 ppm June 30.

Sediment loads: Maximum daily, 479,000 tons Dec. 30; minimum daily, 38 tons June 30. 

EXTREMES, 1947-52. Specific conductance (1949-52): Maximum daily, 3,950 micromhos Aug. 12, 1950; mini

Water temperatures: Maximum observed, 90°F June 30, 1950; minimum observed, 35°F Jan. 4, 1949, Jan. 

Sediment concentrations: Maximum daily, 84,600 ppm July 18, 1950; minimum daily, 150 ppm Oct. 13, 19

Sediment loads: Maximum daily, 706,000 tons Aug. 4, 1951; minimum daily, 30 tons Oct. 3, 1947 (revi

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specifi

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 

Chemical analyses, In parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951....

Dec. -1-10 .........

Jan. 1-10, 1952 ...

Mar. 11-20 ....... 

Mar. 21-28........

Mar. 27-31 .......

Mean 

discharge 

(cfs)

97.2 

93.0 

140 

142 

140 

163

179 

196 

478 

1,750 

368 

418 

256

215 

188 

165 

311 

414 

373 

863

Silica 

(SiO.)

27 

24

21

18

19 

18

Iron 

(Fe)

Calcium 

(Ca)

364 

324

284 

220 

258

238 

194

Magnesium 

(Mg)

122 

103

88 

32 

73

82 

62

Sodium 

<Na)

Potassium 

(K)

252 

267

232 

85 

222

283 

180

Bicarbonate 

(HCO,)

314 

310

318 

148 

298

312 

280

Carbonate 

(CO,)

Sulfate 

<SO«)

1,130 

968

808 

638 

743

751 

541

Chloride 

(CD

370 

390

335 

58 

288

328 

238

Fluorlde 

<F)

Nitrate 

(NO,)

1.5

2.2

2.1

..

3.0

2.8

5.4

Boron 

(B)

0.99

.90

.73

~

.

-

-
UA V O1 ll

Sept. 21-30 .......

Weighted average

981 

1,855 

1,978 

971 

578

381 

1,090 

238 

109 

82.1 

62.0 

82.8 

81.2

79.4 

67.0 

108 

88.7 

88.2 

158

377

15 

13

19 

28

24 

23_

121 

108

300

327

345 

353

....

37 

29

101 

118

119 

118

..

93 

76

280 

279

282 

282_

234 

214

298 

212

267 

281

..

295 

238

945 

1,140

1,150 

1,150

110 

91

355 

388

388 

390

..

2.8

1.8

2.0

1.0

.7

1.1

.23

--

--

1.1

---
182 COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued 

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement, generally between 7:00 a. m. and 10:00 a. m.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

85

26

27

28

29

30

31

Average

Oct.

_.

a 79

66

66

66

_

62

a 70

62

66

67

65

62

60

62

65

67

62

65

64

62

65

65

65

62

63

56

56

58

58

60

64

Nov.

61

53

52

55

58

56

58

58

55

57

58

58

57

55

50

49

50

55

59

59

57

54

55

50

49

53

52

49

50

55

Dec.

50

53

51

50

53

46

46

46

45

44

46

47

48

50

46

48

50

50

50

43

44

44

45

46

46

47

48

50

a 55

56

42

48

Jan.

40

41

41

43

a48

48

46

46

45

46

48

50

48

48

50

50

52

45

47

50

48

51

54

54

48

50

50

50

49

50

48

Feb.

51

52

50

49

50

51

51

52

51

51

52

55

47

46

48

49

53

52

47

50

a 56

51

52

52

50

51

a 65

52

56

_

51

Mar.

56

48

46

52

52

54

55

54

51

54

48

46

a 52

47

54

50

50

55

57

50

50

46

47

49

54

56

a 58

a 58

55

a61

55

52

Apr.

51

54

58

56

56

a 62

a62

55

50

54

52

52

58

60

56

56

58

58

57

58

58

57

58

57

57

..

57

52

54

52

~

56

May

58

60

60

58

58

58

58

58

56

57

58

60

60

60

a 62

58

55

59

62

67

a 70

62

a75

66

68

a 78

68

69

a 74

70

67

63

June

65

65

68

65

72

72

68

70

70

65

67

67

a75

67

67

65

a 80

67

66

68

68

69

a 70

71

68

74

66

66

67

65

~

68

July

67

67

67

73

72

69

72

74

73

71

69

68

68

a 88

70

a 88

71

72

70

69

72

73

73

74

75

75

75

74

75

75

75

73

Aug.

_

73

71

74

74

74

74

72

75

a 80

73

72

a 89

73

74

74

a 89

75

a 83

~

a 85

a 85

73

72

76

76

76

74

72

72

~

76

Sept

a 79

68

70

71

72

74

70

71

70

68

65

a 69

..

a81

68

66

70

69

70

70

71

68

73

69

68

70

a75

67

a 74

68

70

a Observation made between 10 a. m. and 7 p. m.
VIRGIN RIVER BASIN 183

VIRGIN RIVER BASIN Continued

VIRGIN RIVER AT LITTLEFIE1D, ARIZ. Continued

Suspended sediment, water year October 1951 to September 1952

Day

......

14 -

19 ...

IT 

18

19 

21 

24_. ....

27 ......

31-

Total3 .....

4 ..... 

5 .....

6 -----

7 

O

10 

12 ----- 

13 ..... 

14 ..... 

15 

19 

20 ----- 

21 ..... 

22 « 

23 ..... 

24 

28 

26 

27 . - 

28 

M 

20 ----- 

31 

Total

Mean

discharge

(cfs)

124

103 

97

96

97

90

QA

0*7

94

99

226

184

169

154

3,437

AQtJ

*l»0

356 

363 

383 

353 

343

OQ7

330

227 

340 

346 

330

407

401

280 

252 

228 

223 

236

365 

294 

249 

236 

236 

218

10,676

October

Suspended

Mean 

concentration 

(PPm)

2,660 

1,610

1,100

JOO

841

521

 7917

AQfi

Bin

8 fittfi

2 590

2,000

January

3,270 

2,330 

3,400 

2,630 

1,860

1,260

1,280 

1,130 

2,030 

1,740

M OAA

13,900 

4,900 

3,470 

3,050 

2,540 

2,150

9,020 

5,140 

3,500 

2,720 

2,880 

2,600

sediment

Tons 

per 

day

740 

422

285

a 320

«on

255

19fi

9no

\AA

204

196

ofva

1 ftftrt

Q7«

832

21,094

512,400

3,140 

2,280 

3,520

2,510 

1,720

,700

,120

,130 

,040 

,900 

,550

sfll 700

s!5,400 

3,700 

2,360 

1,880 

1,530 

1,370

s9,140 

4,080 

2,350 

1,730 

1,840 

1,530

186,950

Mean

discharge

(cfs)

144 

148

141

139

141

152

177

167

4,455

91 fi

226 

216 

213

206 

211

213

202 

204 

190 

183

164 

164 

168 

177 

166 

166

158 

158 

160 

170

5,523

November

Suspended

Mean 

concentration 

(ppm)

1,670 

1,600 

1,310

1,290

OO9

1,710

1,020

870

February

2,840 

2,460 

2,430

2,580 

2,320

2 1 on

2,150 

2,080 

2,440 

1,520

,280

,190 

,340 

,940 

,310 

,210

,290 

,130 

,010 

,250

sediment

Tons 

per 

day

649 

639 

502

491

oen

KRA

I

fiQfl

i iftrt

QOf

21,108

1,730 

1,430 

1,400

1,450 

1,320

1,170 

1,150 

1,250 

751

IJAQ

567 

527 

608 

927 

587 

542

550 

482 

436 

574

29,605

I

Mean

discharge

(cfs)

165 

162 

165

169

209

9nA

186

ion

193

195

197

200

1,750

10,283

RAQ

356 

282 

285

280 

282

271

408 

359 

376 

350

oiyn

427

383 

340 

324 

330 

346

514 

750 

722 

791 

897 

1,160

12,803

Jecember

Suspended

Mean 

concentration 

(PPm)

1,880

2,520 

1,970 

1,930

2,200

3,800

1,560

1,510

2 790

2 640

2,060

32,900

March

3,400

5,000 

3,800 

3,500

2,600 

2,600 

2,020

3,090

6,450 

4,900 

5,000 

4,500

3

e/u\

3,760

3,020 

2,500 

2,510 

2,160 

2,840 

6,630 

12,300 

10,800 

11,700 

13,300 

13,400

--

sediment

Tons 

per 

day

812

1,120 

862 

860

1,000

85,430

2,140

972

695

697

one

989

QQA

1 980

*TOR

JU.O

1 540

S

A*tn ftfift

8193,000

710.745

84,320

4,810 

2,890 

2,690

1,970 

1,980 

1,480

2,490

2,260

7,110 

4,750 

5,080 

4,250

34,420

3,120 

2,300 

2,200 

1,920 

2,650

s 10, 300 

826,800 

821,900 

827,100 

834,000 

844,600

287,040

s Computed by subdividing day.

a Computed from estimated concentration graph.
184 COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued

Suspended sediment, water year October 1951 to September 1952 Continued

Day

1 

2-----*.

3 

4 

5 

6 

7 

8 

» 

10 

11 

19JUS------

13 

14 

15 

16 

17 

18 

19 

4u------ on

21 

------

23 

24 

25------

26 ---

27 

9fl dSo- --»- 

29 

4ft 3y--- »-

31 

Total1 

2 

3 

4 

5 

6 

7 

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

Aprtt

Mean

discharge

(cfs)

1,130 

827 

937 

970 

1,140

1,380 

1,640 

1,810 

1,270 

869

865 

889 

630 

756 

900

851 

983 

1,220 

1,220 

1,300

1,380 

1,380 

1,430 

1,510 

1,730

1,830 

2,650 

3,230 

1,850 

1,560

40,137

Suspended sediment

liean 

concentration 

(ppm)

14,200 

10,900 

9,360 

9,140 

10,800

11,600 

13,700 

14,700 

11,800 

12,000

9,430 

9,680 

7,000 

9,500 

11,000

10,000 

13,200 

13,900 

11,100 

10,400

10,300 

9,500 

10,400 

9,800 

11,500

11,400 

15,600 

18,700 

15,300 

12, 100

~

Tons 

per 

day

845,500 

24,300 

s 24, 600 

s 34, 000 

835,100

845,500 

864,400 

875,100 

840,600 

28,200

822,400 

823,400 

11,900 

820,300 

827,100

23,000 

835,500 

846,700 

36,600 

36,500

38,400 

35,400 

840,600 

s 40, 000 

853,700

s 57, 300 

8119,000 

163,000 

76,400 

51,000

1,365,500

July

62 

62 

62 

63 

63 

61 

61 

62 

62 

62

62 

62 

63 

62 

63 

63 

63 

63 

63 

62 

66 

67 

66 

65 

65 

67 

66 

67 

67 

153 

144

2,139

380 

437 

463 

462 

491

680 

430 

434 

491 

375

400 

451 

468 

372 

422 

459 

485 

480 

492 

431 

380 

473 

563 

550 

600 

530 

519 

652 

558 

4,260 

4,580

_

Total discharge for year (cfs64 

73 

78 

79 

84 

104 

71 

73 

82 

63

67 

75 

80 

62 

72 

78 

82 

82 

84 

72 

68 

86 

100 

97 

105 

96 

92 

118 

101 

82,490 

si, 730

6,608

May

Mean

discharge

(cfs)

1,600 

1,890 

2,170 

2,400 

2,320

2,180 

2,120 

,970 

,710 

,420

,300 

,310 

,170 

,160 

,130

942 

774 

676 

635 

615

818 

815 

572 

562 

562

535 

544 

518 

501 

488 

416

35,823

Suspended sediment

Mean 

concentration 

(ppm)

9,630 

12,500 

12,900 

14,600 

14,400

11,300 

9,620 

9,380 

8,980 

8,150

7,290 

7,080 

6,780 

6,520 

6,260

5,750 

4,250 

4,380 

3,720 

3,980

4,460 

4,600 

3,720 

3,300 

3,500

3,150 

3,050 

3,200 

3,130 

3,000 

2,800

--

Tons 

per 

day

s42,400 

866,400 

876,600 

895,200 

s 89, 700

866,600 

855,200 

850,900 

841,700 

831,400

826,300 

s 25, 900 

s 21, 900 

821,300 

819,700

14,600 

8,880 

7,990 

6,380 

6,610 

810,200 

10,100 

5,750 

5,010 

5,310

4,550 

4,480 

4,480 

4,230 

3,950 

3,140

836,860

August

114 

84 

79 

72 

71

93 

75 

70 

68 

68

68 

67 

67 

67 

67 

67 

67 

66 

67 

67

67 

67 

77 

72 

68 

190 

134 

139 

144 

118 

90

2,630

6,500 

2,600 

1,150 

507 

446

3,950 

3,350 

950 

1,380 

650

410 

405 

400 

344 

332 

452 

243 

257 

254 

300 

316 

251 

3,970 

3,000 

447 

23,700 

20,000 

18,200 

18,400 

14,700 

6,330

2,000 

590 

245 

99 

85 

81,160 

678 

180 

253 

119

75 

73 

72 

62 

60 

82 

44 

46 

46 

a 54

57 

45 

8935 

583 

82 

815,400 

7,240 

87,500 

s7,390 

4,680 

1,540

51,475

June

Mean

discharge

(cfs)

376 

343 

384 

1,090 

562

443 

359 

306 

274 

236

190 

162 

136 

116 

109

89 

76 

74 

70 

65

62 

62 

62 

62 

62

62 

62 

62 

63 

62

6,081

Suspended sediment

Mean 

concentration 

(ppm)

2,120 

2,000 

2,400 

9,350 

4,350

2,880 

3,580 

2,320 

2,390 

2,000

1,590 

1,400 

1,050 

900 

605

554 

420 

380 

400 

247

276 

321 

299 

273 

291

367 

250 

292 

296 

228

September

76 

70 

68 

68 

66

65 

65 

63 

63 

63

65 

65 

65 

65 

65 

65 

66 

66 

68 

72

258 

433 

184 

143 

116 

94 

86 

82 

77 

82

2,884

1,330 

494 

564 

468 

439

582 

720 

400 

420 

542

336 

380 

513 

428 

517 

507 

528 

393 

491 

425 

36,200 

55,600 

14,800 

4,800 

3,080 

4,200 

1,300 

868 

910 

1,000

days) ...........................................................

Tons 

per 

day

2,150 

1,850 

s2,970 

s 30, 100 

6,600

3,440 

3,470 

1,920 

1,770 

1,270

816 

612 

386 

282 

178

133 

86 

76 

76 

43

46 

54 

50 

46 

49

61 

42 

49 

50 

38

58,713

273 

93 

104 

84 

78

102 

126 

68 

71 

92

59 

67 

90 

75 

91 

89 

94 

70 

90 

83 

847,000 

874,600 

s7,530 

1,850 

965 

1,070 

302 

192 

189 

221

136,818

137,871 

3,655,106

a Computed by subdividing day.

a Computed from estimated concentratios graph.
VIRGIN RIVER BASIN Continued 

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued

Particle-size analyses of suspended sediment, water year October 1951 to 

(Methods of analysis: B, bottom withdrawal tube; D, decollation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date 

of 

collection

Oct. 27, 1951 . . .

Dec. 31.........

Jan. 10, 1952 . . .

Jan. 19.........

Mar. 31 .......

Time

8:30 a. m. 

8:00 a. m. 

8:00 a. m. 

7:30 a. m. 

7:30 a.m.

8:00 a. m. 

8:30 a. m. 

1:00 p.m. 

1:00 p. m. 

1:00 p.m. 

3:00 p.m. 

9:00 a. m. 

1:00 p.m.

8:30 a.m. 

8:00 a.m. 

10:30 a. m. 

1:00 p.m. 

1:00 p. m. 

1:00 p.m. 

1:00 p.m. 

5:00 p.m. 

8:00 a. m.

8:00 a.m. 

10:00 a. m. 

8:00 a. m. 

8:00 a. m. 

10:00 a. m. 

8:00 a.m. 

12:00 m. 

12:00 m.

Water 

discharge 

(els)

257 

150 

141 

162 

162

169 

337 

3,210 

3,210 

3,210 

4,950 

1,950 

1,140

330 

1,360 

1,380 

1,260 

1,260 

1,260 

1,260 

961 

223

206 

151 

350 

274 

366 

803 

1,750 

1.750

Water 

temperature 

CF)

Suspended sedim

Concentration 

of sample 

(ppm)

8,760 

1,550 

737 

2,890 

2,890

1,180 

11,900 

42,800 

42,800 

42,800 

48,400 

34,700 

23,900

1,660 

24,800 

22,500 

41,000 

41,000 

41,000 

41,000 

33,500 

3,100

2,430 

1,360 

4,700 

3,110 

3,050 

14,500 

19,500 

19,500

Concentration 

of suspension 

analyzed 

(ppm)

2,260 

2,360 

1,190 

2,310 

1,720

1,860 

4,240 

1,550 

3,240 

1,740 

5,730 

3,650 

3,610

1,440 

3,520 

3,300 

4,660 

4,620 

1,220 

1,350 

6,980 

1,240

2,220 

1,490 

2,570

2,850 

3,750 

2,750 

2,930

Percent finer t

0.002

27 

29 

9

17 

7 

6

7 

2

33

19 

33

20

0.004

34

33 

29 

12

27 

18 

19 

8 

12 

17 

27 

27

17 

20 

31 

18 

3

42 

39 

10

22

35 

19

23 

25 

20 

3

0.008

47 

34 

16

26 

12 

18

50 

8

52

24

38

28

0.016

64

55 

38 

21

31 

21 

32 

17 

30 

25 

43 

44

23 

34 

46 

57 

59

62 

77 

13

26 

41 

27

31 

40 

30 

29

0.0
VIRGIN RIVER BASIN Continued 

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continue

Particle-size analyses of suspended sediment, water year October 1951 to Sep

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, 

W, in distilled water; C, chemically dispersed; M, mechanically 

Date 

of 

collection

Apr. 10, 1952....

Apr. 28 .........

Apr. 28 .........

Mav 6

June 20 ..........

Sept. 30 .........

Time

7:30 a.m. 

7:30 a.m. 

6:00 p.m. 

8:00 a. m. 

1:00 p.m. 

6:00 p.m. 

6:00 p.m. 

6:00 a. m.

7:30 a. m. 

11:40 a.m. 

11:40 a.m. 

6:30 p. m. 

7:00 a.m. 

6:00 p. m. 

8:00 a. m. 

8:00 a. m.

6:00 a. m. 

7:30 a.m. 

6:00 a.m. 

8:00 a.m. 

8:00 a. m. 

8:00 a. m. 

8:00 a. m.

Water 

discharge 

(cfs)

724 

1,070 

3,060 

3,680 

3,680 

2,780 

2,780 

1,520

2,120 

2,780 

2,780 

2,340 

1,100 

1,100 

1,100 

1,100

249

} «67 

121 

70 

94

Water 

temperature 

(*F)

Suspended zedim

Concentration 

of sample 

(ppm)

11,700 

9,610 

18,400 

18,000 

20,000 

15,900 

15,900 

11,000

10,700 

12,600 

12,600 

10,800 

5,800 

5,730 

13,500 

13,500

2,140 

86

355 

15, 500 

213 

973

Concentration 

of suspension 

analyzed 

(ppm)

2,510 

4,340 

3,310 

3,340 

3,430 

3,410 

3,620 

3,730

3,880 

3,520 

3,760 

7,150 

1,580 

3,540 

4,570 

4,260

4,610 

2,270

Percent finer t

0.002

36

0.004

6 

13 

19 

13 

12 

18 

3 

10

13 

10 

2 

18 

6 

5 

31 

2

60 

54

0.008

72

0.016

9 

20 

30 

21 

20 

25 

25 

16

20 

17 

15 

28 

10 

9 

46 

45

92

79

0.0
COLORADO RIVER MAIN STEM Continued 

LAKE MEAD NEAR BOULDER CITY, NEV.

Chemical analyses, in parts per million, water year October 1951 to Septe

/the miles given below represent distances measured along the Colorado River downstream from the gaging station at Lees Ferry, Ariz

the water/

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature

CF)

Silica 

(SiO,)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na + K)

Bicarbonate 

(HCO.)

Sul

<S

EMERY FALLS, MILE 275.8

Sept. 10, 1952 .....

Sept. 10 ...........

5 

25

29

1,189 

1,169

1,165

77.5 

77.5

78.1

139 44 133

a 201 

201

342

PIERCE FERRY BAY, MILE 279

Nov. 2 ............

Dec 3

Apr. 10 ...........

May 28 .

July 2 ............

5

5

5

5

5

5

5

5

1,159

1,155

1 152

1,148

1,137

1,131

1,165

1,193

79

58

32

50

64

65

68

9.9

10

__

9.6

12

86

121

122

__

__

_

40

38

27

45

47

_

_

18

13

85

163

152

_

_

..

30

24

144

216

238

228

318

202

132

113

AT LINE OF DEMARCATION BETWEEN TURBID AND CLEAR WATER, 

Apr. 1, 1952 ......| 0 1,134 58 12 106 1 40 156 | 233 

GRAND WASH, MILE 248.7

Sent. 10 ...........

5

100

122

125

5

50

1,129

1,084

1,034

1,012

1,009

1,189

1.144

60.4

53.7

52.0

51.6

52.1

82.2

80.6

tl

12

11

11

12

93

96

_

78

31

34

_

29

97

123

..

84

171

172

195

193

258

148

158

a Includes equivalent of 9 parts per million of carbonate (CO,).
COLORADO RIVER MAIN STEM Continued 

LAKE MEAD NEAR BOULDER CITY, NEV.~Continued 

Chemical analyses, in parts per million, water year October 1951 to September 1

Date of

collection

Depth

(feet)

Elevation

(feet)

Temperature

(°F)

Silica

(aoa )

Calcium

(Ca)

Magnesium

(Mg)

Sodium and Bicarbonate

(ICO,)

Sulfa

(S0

GRAND WASH, MILE 248.7 Continued

Sept. 10, 1952 .....

Sept. 10 ...........

100 

150

185

1,094

1,009

77.8 

75.4

64.2

23 62 20 58

164 

154

385

ICEBERG CANYON, MILE 287.5

Apr. 1 ............

Sept 10 . . .

Sept 10

Sept. 10 ...........

5

50

145

5

50

195

205

1,129

1,084

989

987

1,144

999

989

53.4

53.4

80.5

63.8

63.0

58.2

_

12

_

--

90

98

_

82

29

35

_

26

30

27

96

122

_

71

98

167

166

195

198

583

148

157

169

b!88

166

331

SANDY POINT, MILE 293.5

Apr. ............

Apr. ............

Apr. ............

Apr. ............

Apr. ............

flAnt 1 1

Sept. 11 ...........

5

150

210

50

200

984

1,144

994

57.3

53 4

52.8

52.8

52.8

80.2

56.6

_

12

11

__

_

__

116

74

51

__

29

__

26

_

._

95

.-

135

79

39

_

193

152

152

128

142

125

b Includes equivalent of 8 parts per million of carbonate (CO)).
Sept. 11, 1952 ..... 

8*pt- 11 ..........

260 

262

934 

932

S3. 6 

54.0 ::

-- -- 168 

312 

VIRGIN CANYON, MlLE 305.5

Apr. 1 ...........

Apr. 1 ...........

ftnnt Q

Sept. 9 ...........

Sept. 9 ...........

Sept. 9 ...........

flctnt 0

Sept. 9 ...........

5

100

150

250

350

934

846

944

894

844

53.0

52.7

52.4

52.0

84.0

53.3

52.9

53.8

..

~

82 28

161

162

181

151

167

c!83

402

OVERTON ARM OF LAKE AT LINE OF DEMARCATION BETWEEN TURBID AND CLEAR WATER, 27 

Sept. 11 ..........

0 

2

1,134 

1,192

61 

84

13 

10

140 

83

38 

28

100 

84

184 

166

OVERTON ARM OF LAKE OPPOSITE SALT MINE, 22 MILES ABOVE MOUT

Sept. 11 ..........

0 

0

1,134 

1,194

67 

82

12 98 

64

31 

21

101 

49

163 

145

c Includes equivalent of 7 parts per million of carbonate (CO,).
COLORADO RIVER MAIN STEM Contined 

LAKE MEAD NEAR BOULDER CITY, NEV. Continued

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

(°F)

Silica 

(810.)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na + K)

Bicarbonate 

(HCO.)

Sulfate 

(SO.)

OVERTON ARM OF LAKE OPPOSITE CALICO SALT MINE, 15 MILES ABOVE MOUTH 

Apr. 2, 1952 ..... 

Sept. 11 ..........

0 

0

1,134 

1,194

67 

80

12 

11

96 

56

31 

19

95

48

165 

136

30

15

OVERTON ARM OF LAKE, 9.3 MILES ABOVE MOUTH OF VIRGIN RIVER (LOWER 

Apr. 2, 1952 .....

Apr. 2 ..........

Apr. 2 ..........

Apr. 2 ..........

Apr. 2 ..........

Sept. 11 ..........

Sept. 11 ...........

Sept. 11 ..

Sept. 11 ..........

Sept. 11 ..........

5

200

232

235

50

200

250

297

1,129

1,034

934

1,144

994

944

897

56.7

52.2

52.0

80.1

55.1

53 7

53 7

53.6

10

__

12

15

14

11

86

_

90

58

69

29

_

33

18

_

23

92

88

_

83

40

__

58

164

160

160

162

172

134

135

140

147

148

162

27

27

_

28

14

_

19

BOULDER CANYON, MILE 334

Mar. 31, 1952 ....

Mar. 31 ..........

Mar 31 ...

Mar. 31 ..........

5 

50

100

150

200

374

375

1,129

1,034

984

934

884

784

760

759

58.5 

55.3

53.1

52 7

52.5

52.3

51.8

51.8

52.1

11

_

11

16

86

__

_

87

__

89

93

30

_

30

__

32

31

91

_

_

88

_

106

129

163 

167

160

158

dl63

173

175

179

178

226

27

_

27

_

29

32

d Includes equivalent of 9.8 parts per million of carbonate (CO,).
Sept. 12, 1952 .... 

Sept 12

Sept. 12 ..........

Sept. 12 ..........

Sept. 12 ..........

Sept. 12 ..........

Sttnt 19

Sept 12

Sept. 12 ..........

5 

50 

100 

150 

200 

250 

300 

350 

400 

430 

434

1,189 

1,144 

1,094 

1,044 

994 

944 

894 

884 

794 

764 

760

80.6 

77.6 

69.6 

62.6 

54.7 

52.9 

52.7 

52.4 

52.2 

52.2 

52.5

12

' 

56

90

17 

29

34

85

138 

142 

134 

145 

168 

170 

148 

151 

168 

164 

340

132 

276

NEAR INTAKE TOWERS, MILE 354.7

Oct. 31, 1951 ..... 

Oct 31

Oct 31

Oct 31

Oct 31

Oct 31

Oct 31

Oct. 31 ..........

Mov. 29 ..........

No»: 29 ..........

Nov. 29 ..........

Nov. » ..........

Nov. 20 ..........

5 

50 

100 

150 

200 

250 

300 

350 

400 

428 

431

5 

50 

100 

150 

200 

250 

300 

350 

400 

425 

428

1,155 

1,110 

1,080 

1,010 

960 

910 

860 

810 

760 

732 

729

1,152 

1,107 

1,057 

1,007 

957 

907 

857 

807 

757 

732 

729

70.0 

69.9 

69.7 

61.8 

56.9 

54.2 

53.6 

53.6 

53.6 

53.6 

53.6

63.0 

63.0 

63.0 

63.0 

57.3 

54.5 

54.2 

53.8 

53.6 

53.6 

M.5

12

18 

12

11 

16

76

98 

80

90 

92

28

33 

26

28 

31

83

101 

85

83 

95

146 

146 

146 

162 

164 

166 

164 

172 

174 

170 

306

156 

156 

148 

156 

164 

164 

168 

172 

174 

186 

200

255

225 

256

273 

276
COLORADO RIVER MAIN STEM Continued 

LAKE MEAD NEAR BOULDER CITY, NEV. Continued 

Chemical analyses, in parts per million, water year October 1951 to September 19

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

CF)

Silica 

(SiOa )

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na + K)

Bicarbonate 

(HCO.)

Sulfate 

(S04)

NEAR INTAKE TOWERS, MILE 354.7~Continued

Dec . 8 ...........

Feb. 29 ...........

Feb. 29 ...........

Feb. 29 ...........

1 Rn

OAA

OCA

413

QAQ

1 1 ^17

79.9

729

53.8

53.9

CO ft

53.5

53.5

51.8

52.1

__

83

_

_

_

91

..

97

_

_

88

_

83

_

155

155

154

158

162

164

171

175

178

192

158

159

157

158

160

158

175

174

186

160

163

164

172

162

166

166

174

178

_

26

_

27

_

_

_

_

27

_

30

_

27

_

_

_

29

27

_

_
Mar. 27, 1952 ..... S 

SO 

100 

ISO 

200 

250 

300 

350 

405 

406

5 

50 

100 

ISO 

200 

250 

330 

350 

410 

412

5 

50 

100 

150 

200 

250 

300 

350 

400 

439 

440

1,130 

1,085 

1,035 

98S 

935 

885 

835 

788 

730 

729

1,137 

1,092 

1,042 

992 

942 

892 

842 

792 

732 

730

1,164 

1,119 

1,069 

1,019 

969 

919 

869 

819 

769 

730 

729

5S.6 

S3. 8 

53.1 

S3.1 

52.8 

S2.2 

51.8 

51.8 

51.8 

51.8

61.0 

59.5 

S4.S 

53.7 

S2.2 

51.9 

SI. 8 

51.8 

51.8 

52.5

77.0 

66.6 

59.7 

55.4 

53.1 

52.1 

51.9 

51.9 

51.7 

51.7 

S2.3

10

12 

11 

11 

16

9.9

13

9.3

9.3 

10

11

85

84 

88 

86 

96

82

82

83

86 

88

98

e Includes equivalent of 9 parts per million of carbonate (CO,)

163

187

162

159 

164

166 

173

170 

175

237

163

162

160

162

166

171

173

172

175

183

158

'166

155

163

162

165

161

175

179
COLORADO RIVER MAIN STEM Continued

LAKE MEAD NEAR BOULDER CITY, NEV. Continued

Chemical analyses, In parts per million, water year October 1981 to Septembe

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

CF)

Silica 

(SiO.)

Calcium 

(Ca)

Magnesium 

(M?)

Sodium and 

potassium 

(Na+ K)

Bicarbonate 

(HCO.)

S

<

NEAR INTAKE TOWERS, MILE 354.7 Continued

Aug. 5 ...........

Aug. 5 ...........

AUK. 29 ...........

S

SO 

100 

150 

200 

250 

300 

350 

400 

450 

465 

468

5

50 

100 

150 

200 

250 

300 

350 

400 

450 

469 

470

5

50 

100 

150 

200 

250 

300 

350 

400

1,192 

1,147 

1,097 

1,047 

997 

947 

897 

847 

797 

747 

732 

729

1,195 

1,150 

1,100 

1,050 

1,000 

950 

900 

850 

800 

750 

731 

730

1,192 

1,146 

1,096 

1,046 

996 

946 

896 

846 

796

72.4 

71.4 

66.0 

60.2 

53.9 

52.7 

52.1 

52.0 

SI. 8 

SI. 8 

51.8 

S2.0

79.4 

75.1 

70.6 

64.2 

53.4 

52.9 

52.2 

52.2 

51.9 

SI. 9 

51.9 

SI. 9

81.4 

80.2 

70.5 

63.4 

53.4 

52.5 

52.2 

52.0 

51.9

11 

11 

11 

10

12

12

11 

12 

10

11 

12

11

11 

11

76 

76 

74 

85

79 

87

87 

79 

88

66 

88

64

72 

84

26 

26 

25 

28

27 

29

30 

27 

30

23

29

22

24 

28

95 

91 

80 

92

93 

99

109 

92 

103

65 

94

60

109 

54

153 

154 

156 

164 

159 

160 

169 

172 

168 

160 

176 

292

138 

144 

141 

150 

164 

163 

167 

170 

168 

156 

171 

214

136 

137 

141 

142 

160 

162 

146 

149 

166
Aug. », 1912 .... 

Aug. M ..........

Aug 29

Sept. 30 ..........

Sept. 30 ...

Sept. SO ..........

Sept. 30

Sept. 30 ..:.......

Sept. 30 ..........

450 

464

50

150

350

450

462

746 

732

1,040

840

740

728

51.9 

51.0

79.4

79.4

62.7

53 8

52 7

52.1

52.1

52.1

51.8

52.6

--

10

10

-

--

62

86

78_-

--_

21

29

24

26

--

--_

51

83

64

74

..

--

148

172

300

138

130

138

150

f 161

142

147

155

162

182

207

f Include* equivalent of 10 part* per million of carbonate (CO,).
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER BELOW HOOVER DAM, ARIZ-NEV.

LOCATION.--^At Hoover Dam, state line between Mohave County, Arizona, and Clark County, Nevada, about 1 

DRAINAGE AREA. 167,800 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1939 to September 1952.

Water temperatures: October 1941 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 706 ppm Mar. 3-7, 10; minimum, 524 ppm Sept. 11-12, 15-

Hardness: Maximum, 344 ppm Dec. 3-7, 10, June 2-6, 9-10; minimum, 268 ppm Sept. 11-12, 15-19.

Specific conductance: Maximum daily, 1,070 micromhos Mar. 11, 31, Apr. 22; minimum daily, 804 microm

Water temperatures: Maximum observed, 66°F Aug. 15, Sept. 11, 19, 29; minimum observed, 53°FApr. 3, 

EXTREMES, 1939-52. Dissolved solids (1939-44, 1945-52): Maximum, 824 ppm Mar. 1-10, 1941; minimum, 52

Hardness (1939-44, 1950-52): Maximum, 426 ppm Jan. 21-31, 1941; minimum, 268 ppm Sept. 11-12, 15-19, 

Specific conductance: Maximum daily, 1,250 micromhos Mar. 2, 1941; minimum daily, 804 micromhos Sept

Water temperatures (1941-52): Maximum observed, 69°F Sept. 27, 1945; minimum observed, 50° F Mar. 23

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in W

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-5, 8-10, 1951

Oct. 11-12, 15-19.

Oct. 22-26, 29-31

Nov. 1-2, 5-9 ....

Nov. 13-16, 19-20

Nov. 21, 23, 26-30

Dec. 3-7, 10.....

Dec. 11-14, 17-20 

Dec. 21, 26-29...

Jan. 2-5, 7-10, 195!

Jan. 11, 14-18 ...

Jan. 21-25, 28-31

Feb. 1, 5-8 ......

Feb. 11-15, 18-20

Feb. 21, 25-29 . . .

Mar. 3-7, 10..... 

Mar. 11-14, 17-20

Mar. 21, 24-28, 31

Apr. 1-4, 7-10...

Apr. 11, 14-18...

Apr. 21-25, 28-30

Mean 

discharge 

(eta)

13,780

14,380

13,000

14, 390

16, 570

16, 490

15, 880

15,410 

15,140

16,010

19,670

21,140

21,280

99 ft an

66) OO\J

24, 170

24,000 

23,440

22,830

23,140

24,450

26,360

Silica 

(810,)

13

12

14

_

__

IS

--

13

9.7

9.2

12

10

Iron 

(Fe)

..

_

..

0.04

-

..

.06

Calcium 

(Ca)

86

86

88

Q7

0 I

on

O 1 

07

O ( 

07

D 1

85

81

84

83

84

86

on

oa 

89

Qft

»u 

84

86

87

87

88

Magnesium 

(Mg)

SO

28

29

Qft

ou 

30

Oft

OU 

QI OJ.

31

27

25

28

26

27

oe

6V 

ne

69 

oe

6V

28

28

28

30

28

Sodium 

(Na)

Potassium 

(K)

89

92

85 

92

Q9 06 

Q9 T$&

no

06

92

90

90

90

90

92

94 

94

4.4

4.4

4.5

4.5

4.8

103

103

105

100 4.1

103

Bicarbonate 

(HCO,)

169

168

166

159

159

160

160

166

166

167

170

170

168

Sulfate 

<S04 )

276

276

273

..

272

--

__

289

292

293

291

295

Chloride 

(Cl)

73

73

72

..

72

__

77

78

80

81

79

Fluoride 

(F)

..

--

..

0.2

_

_

.3

Nitrate 

(NO,)

2.3

2.1

1.7

..

1.8

--

__

2.3

2.7

2.6

2.1

2.0

Boron 

(B)

..

..

0.14

--

_

-.

--

..

.16

D

(re

Parts 

per 

million

68

68

67

68

68

68

67

66

65

65

66

66

67

68

69

70

68

68

68

70

69
Hay 1-2, 5-9, 1952

May 12-16, 19-20 .

May 21-23, 26-29 .

June 2-6, 9-10 ....

June 11-13, 16-20 .

June 23-27, 30 ....

July 1-3, 7-10 ....

July 11, 14-18 ....

Scot 11 12 15 19

Sept. 22-25, 27, 29-

on

Weighted average

26, 640

29, 090

27, 200

26,290

27, 780

23, 630

22, 900

22,870

99 7ftfi

99 ft 7 ft

23 060

oq rjAf\

oc I 7fi

no CQfl

a 2 1,600

9.7

9.8

11

11

14

15

11

12

--

_

..

.03

--

87

86

86

90

85

76

80

76

ne

73

72

83

28

28

29

29

29

28

26

25

Oft

97

25

94

27

103

104

98 |

91

92

90 |

86

80

70

73

90

4.2

167

167

168

167

163

165

159

158

292

293

285

281

277

263

253

248

80

80

79

78

76

64

69

65

_

..

..

.2

2.4

2.0

2.6

2.2

2.5

2.3

2.5

1.7

_

--

--

..

--

.12

693

884

692

695

665

647

618

603

585

C7i

R9J

652

a Represents 75 percent of runoff for water year October 1951 to September 1952.
198 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER BELOW HOOVER DAM, ARIZ.-NEV.~- Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

56

56

56

56

56

_

56

56

56

56

56

56

57

57

57

57

_

57

56

56

56

56

57

57

57

Nov.

56

57

__

57

57

57

57

57

_

_

57

57

57

57

_.

57

57

57

57

57

57

58

57

57

--

Dec.

_

57

57

57

57

58

_

58

58

57

57

58

_

57

57

56

57

57

~

57

57

57

57

--

Jan.

56

56

56

56

_

55

56

56

56

56

_

_

55

55

55

55

55

55

55

55

55

55

_

55

55

55

55

Feb.

55

_

_

55

55

56

56

57

_

54

54

56

55

56

..

_

55

54

54

54

_

_

_

55

55

55

55

54

Mar.

_

54

54

55

55

54

_

_

54

54

54

54

54

54

54

54

54

54

_

54

54

54

54

54

_.

_-

54

Apr.

54

54

53

54

--

_.

53

53

54

53

53

_

_

53

54

53

53

54

54

54

54

54

54

_

93

54

54

May

54

54

_

_

54

54

54

54

54

_

54

54

54

54

53

_

_

54

54

54

54

54

_

54

54

54

55

_.

June

_

55

54

54

55

54

_

_

53

56

57

58

58

_

58

60

63

60

61

_

62

62

61

60

61

__

_

62

July

63

62

63

~

_

62

63

62

64

64

_

__

63

63

63

63

63

62

62

63

64

60

..

62

63

63

63

Aug.

64

__

64

64

62

64

64

._

64

64

64

64

66

_

_

65

64

64

65

65

__

_

63

63

64

64

64

Sept

_

64

65

64

_

__

65

64

64

66

65

65

65

65

65

66

..

65

65

65

65

..

64

_

66

_

~
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR TOPOCK, ARIZ.

LOCATION.--Temperature recorder at gaging station in Mohave Canyon, 3 miles downstream from T

Parker Dam, and 49 miles downstream from Davis Dam. 

DRAINAGE AREA. 172,300 square miles, approximately. 

RECORDS AVAILABLE. Water temperatures: July to September 1952. 

REMARKS. Recorder equipped with thermograph June 17, 1952. Recorde of discharge for water y

1243.

Temperature (°F) of water, June to September 1952

Day

6 ...

11 . ......

12 . ....

15 ... ..............

17 - ... 

19 « -

20 - - 

21 ... ...... ......

44

25 - 

no

so 

31 -. ...

Average 

October

max mm

November

max min

December

max min

January

max min

February

max min

March

max min

April

max min

Ma

max 
VIRGIN RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN VIRGIN RIVER BASIN 

Chemical analyses, in parts per million, December 1951 to April 

Date of collection

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluorlde 

(F)

Nitrate 

(NO,)

Boron 

(B)

FORT PIERCE WASH NEAR ST. GEORGE

Dec. 5, 1951......

Apr. 28, 1952..... 12 436 90 69 162 1,370 34 2.5 
GILA RIVER BASIN 

GILA RIVER AT KELVIN, ARIZ.

LOCATION.--Just above mouth of Mineral Creek, and 1,200 feet upstream from gaging station at Kelvin, Pin

t and 19 1/2 miles upstream from Ashurst-Hayden Dam.

DRAINAGE AREA. 18,011 square miles at gaging station, of which 5,125 square miles are below Coolidge Da

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum 1,760 ppm Oct. 21-30; minimum, 365 ppm Jan. 13-14, 18-20.

Hardness: Maximum, 1,060 ppm Oct. 21-30; minimum, 186 ppm Jan. 13-14, 18-20, May 21-31.

Specific conductance: Maximum observed, 2,520 micromhos, Oct. 21-22; minimum observed, 407 micromhos 

Water temperatures: Maximum observed, 87"F Aug. 23, 26, Sept. 6-7; minimum observed, 46"F Feb. 15, Ma

EXTREMES, 1950-52.--Dissolved solids: Maximum 1,760 ppm Oct. 21-30, 1951; minimum, 343 ppm Aug. 26-28, 

Hardness: Maximum 1,070 ppm June 1-10, 1951; minimum, 180 ppm Sept. 6-12, 1951.

Specific conductance: Maximum observed, 2,520 micromhos Oct. 21-22, 1951; minimum observed, 407 micro

Water temperatures: Maximum observed, 94*F July 30, 1951; minimum observed, 41"F Dec. 15, 25, 1950.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

office at Albuquerque, N. Mex. Records of discharge for water year October 1951 to September 1952 gi

Creek, between sampling point and gaging station except during periods of heavy local rains.

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951 ..... 

Oct. 11-20...........

Oct. 21-30 ..........

Oct. 31, Nov. 1-10... 

Nov. 11-20..........

Nov. 21-30..........

Dec. 1-5............

Dec. 6-7 ............

Dec. 8-20...........

Dec. 31.............

Jan. 1-12, 1952......

Jan. 13-14, 18-20.... 

Jan. 15-17, 21-22 ... 

Jan. 23-31 ..........

Feb. 7-10 ...........

Feb. 22-29..........

Mean 

discharge 

(cis)

5.89 

3.36 

3.52 

29.9 

106 

109

70.8 

87.5 

43.4 

38.4 

1,830 

92.7 

1,817 

231 

75.6

48.2 

43.2 

42.6 

150

Silica 

(SiO,)

35 

35 

37 

26 

23 

25

27 

32 

28 

31 

26 

34 

31 

26 

31

28 

30 

30 

29

Iron 

(Fe)

0.01 

.01 

.01 

.05 

.01 

.01

.01 

.02 

.01 

.01

.01 

.04 

.01 

.01

.01 

.02 

.01 

.01

Calcium 

(Ca)

230 

288 

306 

109 

72 

81

94 

63 

124 

137 

62 

140 

55 

100 

137

133 

136 

134 

78

Magnesium 

(Mg)

55 

77 

73 

26 

18 

21

23 

15 

31 

33 

17 

34 

12 

22 

32

35 

36 

35 

20

Sodium

(Na)

188 

156 

154 

144 

136 

143

145 

7 

182 

198 

79 

188 

43 

96 

156

179 

183 

184 

114

Potassium 

(K)

6.8 

5.2 

4.6 

6.2 

5.4 

8.8

8.2 

5 

7.8 

8.8

9.4 

5.2 

7.4 

6.8

6.6 

8.8 

9.0 

5.5

Bicarbonate 

(HCO,)

249 

300 

302 

247 

210 

200

233 

239 

268 

279 

241 

279 

144 

231 

265

234 

255 

278 

191

Carbonate 

(CO,)

0 

0 

0 

0 

0 

9

0 

0 

5 

0 

0 

7 

5 

0 

15

11 

11 

0 

0

Sulfate 

(SO,)

617 

795 

810 

240 

141 

162

206 

93 

291 

352 

116 

339 

95 

191 

288

344 

346 

339 

137

Chloride 

(Cl)

260 

225 

220 

165 

165 

182

181 

60 

221 

239 

51 

212 

44 

112 

185

209 

207 

212 

157

Fluorids 

(F)

1.0 

.8 

.8 

1.0 

1.0 

1.1

1.0

1.2 

1.4

1.4 

.6 

.8 

1.0

1.0 

1.3 

1.2 

.9

Nitrate 

(NO,)

0.5 

.8 

.6 

2.1 

2.5 

1.2

1.5 

4.0 

1.0 

1.0 

1.2 

1.2 

2.8 

1.2 

2.1

1.3 

.3 

.3 

2.2

Boron 

(B)

0.44 

.10 

.30 

.25 

.23 

.22

.08

.21 

.16

.21

.21 

.24

.21

.23 

.22
GILA RIVER BASIN Continued

GILA RIVER AT KELVIN, ARIZ. Continued

Chemical analyses, in parts per million, water year October 1951 to September 195

Date of collection

Mar. 1, 6-10, 1952 . . 

Mar. 2-5. ...........

Mar. 21-31..........

Apr. 1-10...........

Apr. 21-30..........

May 1-10. ...........

May 11-30. ..........

May 21-31...........

June 1-10 ...........

June 21-30 ..........

July 1-10 ...........

Aug. 1-10...........

Aug. 21-31..........

Sept 1-10

Sept. 21-30 .........

Weighted average . . .

Mean 

discharge 

(cfs)

226 

451 

388 

352

440 

555 

389 

244 

254 

342

499 

S28 

690 

682 

845 

1,010

919 

1,038 

807 

682 

457 

225

378

Silica 

(810.)

31 

27 

29 

27

25 

26 

25 

27 

26 

26

29 

25 

26 

24 

25 

27

25 

27 

23 

19 

22 

25

26

Iron 

<Fe)

0.01 

.04 

.03 

.01

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.02 

.08

.05 

.08 

.01 

.01 

.01 

.01

0.03

Calcium 

(Ca)

92 

66 

87 

74

64 

58 

58 

61 

56 

52

55 

55 

54 

57 

58 

65

68 

76 

67 

57 

68 

90

66

Magnesium 

(Mg)

23 

14 

22

19

17 

14 

15 

15 

15 

14

14 

IS 

14 

15 

16 

16

16 

15 

14 

17 

23 

26

17

So-

<N3

120 

62 

118 

119

112 

98 

92 

96 

90 

88

90 

94 

95 

98 

102 

102

104 

96 

112 

130 

152 

180

104

Potassium 

(K)

6.0 

4.2 

5.8 

5.3

S.O 

4.4 

4.6 

5.0 

4.8 

4.5

4.5 

4.4 

4.4 

4.9 

5.8 

5.4

5.8 

6.3 

6.3 

6.2 

7.0 

8.1

5.6

Bicarbonate 

(HCO.)

216 

192 

224 

180

168 

162 

164 

168 

164 

157

108 

166 

165 

170 

178 

215

215 

252 

196 

180 

198 

237

193

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

--

Solfate 

(SO.)

162 

93 

163 

112

98 

85 

93 

96 

85 

74

71 

67 

70 

76 

73 

67

75 

76 

98 

94 

118 

167

98

Chloride 

(Cl)

167 

69 

147 

179

167 

144 

126 

132 

125 

120

129 

136 

140 

142 

147 

142

147 

125 

143 

174 

214 

246

141

Fluoride 

<F)

0.9 

.8 

1.0 

.8

.6 

.6 

.6 

.6 

.6 

.5

.6 

.7 

.7 

.7 

.6 

.7

.7 

.7 

.8 

.8 

.8 

.9

0.7

Nitrate 

(NO,)

2.1 

2.7 

2.2 

2.4

2.9 

2.2 

1.9 

1.6 

1.7 

1.4

2.0 

1.0 

.8 

.9 

.6 

2.0

1.2 

1.4 

1.9 

2.9 

3.6 

3.1

1.8

Boron 

<B)

0.09

.24

.17 

.17 

.19 

.14 

.19 

.15

.13 

.06 

.08 

.04 

.16 

.17

.22 

.14 

.22 

.16 

.23 

.28

0.16

P
GILA RIVER BASIN 203

GILA RIVER BASIN Continued 

GILA RIVER AT KELVIN, ARIZ. Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/"Once-daily temperature measurements, generally after 4 p. m.7

Day

1

2

3

4

5

6

7

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

Oct.

82

80

79

76

74

74

a71

b80

77

a71

b72

72

73

b78

b78

b72

73

b77

b78

70

b76

75

73

72

71

70

74

b76

b77

b68

66

74

Nov.

65

64

56

_

64

63

a 60

64

63

64

65

63

63

58

58

57

61

66

61

58

59

59

a 58

a 54

a 52

58

a 53

60

Dec.

b54

a 52

54

55

58

51

48

52

51

57

57

~

_

b54

53

52

53

53

54

54

59

60

60

57

55

b53

Jan.

53

51

52

51

50

52

53

54

51

b57

b58

54

53

b48

52

53

55

58

55

b55

b56

b57

b55

~

b57

b57

b59

62

b57

b56

54

Feb.

62

b«0

58

59

58

60

b62

b53

b54

a 55

b61

58

bSO

b48

b46

54

55

b61

58

56

58

56

b49

56

54

58

56

~

56

liar.

60

51

54

b58

60

58

58

b56

54

b46

52

56

58

56

68

_

_

56

56

55

62

56

b60

b60

b64

a 66

Apt.

b68

66

66

68

68

69

66

62

b60

63

b57

b60

66

58

68

66

68

68

66

b58

b57

67

b75

b68

b67

b69

64

b60

70

75

66

May

80

82

78

82

82

80

b72

73

78

80

80

82

83

b83

75

75

b63

b70

60

77

76

77

b79

b78

b78

b77

60

80

60

77

80

78

June

75

_

74

b76

79

..

_

79

80

77

76

a 67

a 69

a 68

a 67

a 67

a73

a 70

a 70

a68

a 69

a 68

a 67

78

a 69

a 67

a 71

a 69

72

July

79

b78

72

78

b77

82

b76

78

79

80

78

80

77

80

80

80

60

80

b84

b82

82

85

85

80

85

b85

_

_

82

83

80

Aug.

83

85

80

85

85

b82

85

85

85

85

83

b83

64

82

82

80

b81

b83

81

83

87

64

82

87

84

85

85

85

85

64

Sept.

85

85

85

..

85

87

b87

85

85

83

b83

77

81

81

85

85

83

84

__

85

85

84

78

78

79

79

b83

~

83

a Observation made before 10 a. m.

b Observation made between 10 a. m. and 4 p. m.
GILA RIVER BASIN Continued

SALT RIVER AT STEVART MOUNTAIN DAM, ARIZ.

LOCATION. Just below dam, 3J miles above gaging station below Stewart Mountain Dam, which is 6 miles up

DRAINAGE AREA. 6,230 square miles, (revised), approximately.

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 976 ppm Oct. 11-20; minimum 548 ppm Sept. 11-20.

Hardness: Maximum, 224 ppm Sept. 21-30; minimum 166 ppm July 1-10 and Sept. 11-20.

Specific conductance: Maximum observed, 1,770 micromhos Nov. 5; minimum observed, 917 micromhos Sept

Water temperatures: Maximum observed, 79°F on several days during October and September; minimum obse

EXTREMES, 1950-52. Dissolved solids: Maximum, 1,300 ppm Aug. 21-28, 1951; minimum, 548 ppm Sept. 11-20

Hardness: Maximum, 256 ppm Aug. 21-28, 1951; minimum, 151 ppm Aug. 29-31, Sept. 1-10, 1951.

Specific conductance: Maximum observed, 2,490 micromhos Aug. 20, 1951; minimum observed, 917 micromho

Water temperatures: Maximum observed, 84°F Aug. 24, 26-27, 1951; minimum observed, 49°F Feb. 14, 1951

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

Albuquerque, N. Hex. Records of discharge for water year October 1951 to September 1952 given in WSP 

station except during periods of heavy rainfall.

Chemical analyses, In parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951... 

Oct. 11-20. .......

Oct. 21-31........

Nov. 11-20 .......

Nov. 21-30 .......

Dec. 1-10 .......

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 1-10, 1952... 

Jan. 11-20 .......

Jan. 21-31 .......

Feb. 11-20 .......

Mar. 1-10 .......

Mar. 11-20.......

Apr. 1-10 ........

Apr. 11-20 .......

Apr. 21-30 .......

Mean 

discharge 

(els)

8.71 

2.95 

1.82 

1.31 

.97 

1.91

1.92 

118 

730 

4.39 

2.68 

2.08

1.26 

1.14 

2.97 

2.94 

4.63 

3.96

3.24 

3.39 

3.83

Silica 

(SiOJ

27 

27 

18 

12 

11 

21

13 

8.2 

7.0 

9.1 

10 

13

15 

20 

14 

14 

16 

15

15 

16 

16

Iron 

(Fe)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.02 

.03

.01 

.02 

.02 

.02 

.02 

.04

.03 

.01 

.01

Calcium 

(Ca)

51 

53 

53 

54 

48 

47

49 

54 

52 

52 

52 

51

51 

51 

50 

48 

48 

51

51 

50 

51

Magnesium 

(Mg)

19 

20 

20 

20 

18 

19

18 

19 

18 

18 

17 

17

19 

19 

18 

17 

17 

15

15 

16 

15

Sodium 

(Na)

249 

268 

261 

259 

258 

257

249 

234 

238 

234 

237 

235

224 

216 

204 

190 

188 

190

188 

187 

187

Potassium 

(K)

8.4 

8.0 

8.4 

8.8 

8.4 

9.2

7.8 

10 

10 

10 

10 

11

7.3 

7.2 

7.1 

6.8 

6.5 

6.5

6.3 

6.4 

6.3

Bicarbonate 

(HCO,)

152 

154 

152 

155 

152 

159

153 

153 

150 

152 

154 

157

alSO 

161 

159 

156 

158 

159

158 

158 

158

Suliate 

(S04)

59 

63 

58 

63 

62 

60

60 

62 

63 

61 

56 

59

57 

59 

58 

56 

56 

55

54 

54 

55

Chloride 

(Cl)

400 

430 

426 

420 

410 

405

395 

386 

384 

382 

385 

385

360 

346 

328 

302 

300 

298

300 

294 

288

Fluorida 

(F)

0.4 

.4 

.4 

.4 

.4 

.4

.4 

.5 

.5 

.5 

.5 

.5

.4 

.5 

.5 

.5 

.4 

.4

.5 

.4 

.4

Nitrate 

(NO,)

2.1 

2.1 

1.6 

1.8 

.9 

1.8

1.4 

2.0 

1.5 

2.0 

1.7 

1.6

1.5 

1.5 

1.4 

1.3 

1.8 

2.1

1.9 

2.8 

2.2

Boron 

(B)

0.23 

.22 

.16 

.18 

.20 

.20

.22 

.26 

.27 

.31 

.16 

.20

.22 

.16 

.15 

.24 

.15 

.07

.06 

.21 

.18

Di

(res

Parts 

per 

million

942 

976 

956 

944 

928 

923

891 

859 

860 

858 

851 

842

834 

815 

769 

715 

721 

721

718 

718 

703

a Includes equivalent of 5 parts per million (CO,)
May 1-10, 1952 . . . 

May 11-20........

June 1-10 ........

June 11-26 .......

June 21-30 .......

July 1-10 ........

July 11-20 ........

Aug. 1-10 ........

Aug 11-20

Aug. 21-31 .......

Sept 11-20

Sept. 21-30.......

Weighted average

2.11 

548

400

386

252

741

1,126

1,419

148

362

16 

18

17

18

24

22

21

18

20

30

18

.01 

.01

.01

.01

.01

.01

.00

.01

.01

0.01

SO 

49

SO

49

48

45

49

48

45

60

48

15 

15

15

14

13

13

18

14

192 

192

189

182

156

140

136

138

144

142

136

134

130

147

150

.3 

.4

.4

.1

5.8

5.7

5.0

5.6

5.4

5.4

5.0

5.8

5.8

162 

158

161

160

160

152

148

148

154

154

230

153

B5 

54

53

52

49

48

47

49

50

49

48

54

50

290 

290

290

282

240

216

206

214

220

91ft

212

212

233

.5

.5

.5

.5

.5

.5

.3

1.1

0.4

1.9 

2.1

2.1

1.8

3.6

2.9

2.9

2.4

2.4

2.3

2.0

2.6

8.7

2.4

.16 

.19

.20

.09

.10

.06

.16

.15

.16

0.15

70

7

71

68

65

59

56

58

58

57

54

66

61
206 COLORADO RIVER BASIN

GILA RIVER BASIN Continued 

SALT RIVER AT STEVART MOUNTAIN DAM, ARIZ. Continued

Temperature (°F) of water, water year October 1951 to September 19S2 

/Once-daily temperature measurement generally between 6:30 a.m. and 9 a.mj

Day

1

2

3

4

5

6

7

8

9

to

11

12

13

14

IS

1«

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

77

79

79

79

79

78

77

77

78

78

77

77

77

a 78

75

75

77

75

76

76

76

76

76

75

74

71

70

b72

72

72

70

76

Nov.

70

71

69

a 69

69

69

69

68

68

68

68

68

67

67

67

67

67

63

63

65

64

64

65

64

62

61

62

62

62

62

66

Dec.

62

62

62

62

61

61

59

58

59

56

58

58

59

59

59

59

57

57

59

57

57

55

57

56

57

57

57

57

57

56

55

58

Jan.

57

54

55

54

53

53

54

54

54

54

54

58

58

53

53

53

51

55

55

54

55

55

56

50

55

54

55

54

55

55

55

54

Feb.

55

55

55

54

54

54

55

55

54

55

55

54

54

50

54

54

54

54

54

54

55

55

55

55

55

55

55

55

59

55

Mar.

55

55

52

54

54

55

55

56

55

55

54

53

52

52

52

55

54

54

55

52

56

55

55

55

55

55

55

57

57

57

58

55

Apr.

_

58

58

58

59

59

58

58

58

57

57

57

57

58

58

58

58

59

58

57

57

57

59

59

59

59

57

58

58

58

May

58

58

59

59

60

60

61

60

61

61

61

57

57

57

58

58

58

58

58

58

57

57

57

58

60

60

60

60

60

61

61

59

June

_

57

59

58

58

58

58

59

59

60

60

60

60

60

60

60

60

62

60

60

61

62

62

68

68

64

62

62

62

62

61

July

61

61

61

62

61

62

62

61

62

62

62

64

64

64

64

65

65

65

65

65

65

65

65

65

65

65

65

65

65

65

65

64

Aug.

65

65

65

65

66

66

66

66

66

65

65

65

65

65

65

65

65

65

65

65

66

66

65

65

65

65

65

65

65

66

66

65

Sept.

66

67

67

67

67

67

67

67

67

67

67

67

67

68

67

68

70

73

74

76

76

76

78

79

79

79

76

77

77

76

~

71

a Observation made at 1 p.m. 

b Observation made at 11 a.m.
G1LA RIVER BASIN Continued 

VERDE RIVER BELOW BARTLETT DAM, ARIZ.

LOCATION. At gaging station 2 1/4 miles downstream from Bartlett Dam, Maricopa County, and 3 1/2 miles 

DRAIKAGE AREA. 6,188 square miles (revised).

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 408 ppm Nov. 21-30; minimum, 158 ppm Jan. 11-20.

Hardness: Maximum, 282 ppm Dec. 11-20; minimum, 108 ppm Jan. 11-20.

Specific conductance: Maximum observed, 673 micromhos Dec. 20; minimum observed., 234 micromhos Jan. 

Water temperatures: Maximum observed, 79*F Aug. 6; minimum observed, 41*F Jan. 30. 

EXTREMES, 1950-52. Dissolved solids: Maximum, 450 ppm July 11-20, 1951; minimum, 158 ppm Jan. 11-20, 

Hardness: Maximum, 282 ppm Dec. 11-20, 1951; minimum, 108 ppm Jan. 11-20, 1952.

Specific conductance: Maximum observed, 725 micromhos June 28, 1951; minimum observed, 234 micromhos 

Water temperatures: Maximum observed, 90*F July 18, Aug. 14, 1951; minimum observed, 41T Jan. 30, 1

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific ponduc

Albuquerque, N. Mex. Records of discharge for water year October 1951 to September 1952 given in W

Chemical analyses, in parts per million, water year October 1951 to Septe

J)ate of collection

Oct. 1-10, 1951 

Oct. 11-20 ..... 

Oct. 21-31 ..... 

Nor. 1-10......

Nor. 11-20..... 

Nor. 21-30.....

Dec. 1-10......

Dec. 11-20..... 

Dec. 21-31..... 

Jan. 1-3, 1952 . 

Jan. 4-10 ......

Jan. 11-20 ..... 

Jan. 21-31 .....

Feb. 11-20..... 

Feb. 21-29..... 

Mar. 1-10......

Mar. 11-20 .... 

Mar. 21-31.....

Apr. 1-10......

Apr. 11-20.....

Mean 

discharge 

(eta)

561 

617 

486 

283 

313 

253

229 

253 

131 

155 

113 

126 

141

363 

451 

1,034 

636 

309 

1,678

2,752 

1,986

Silica 

(SiO.)

23 

20 

29 

25 

24 

26

23 

20 

18 

20 

16 

15 

15

17 

15 

15 

19 

17 

15

16 

18

Iron 

(Fe)

0.05 

.02 

.03 

.01 

.01 

.01

.01 

.01 

.02 

.02 

.02 

.03 

.03

.08 

.07 

.06 

.05 

.05 

.13

.04 

.10

Calcium 

(Ca)

45 

50 

51 

49 

52 

50

52

54 

53 

46 

38 

27 

31

29 

28 

28 

28 

30 

30

31 

31

Magnesium 

(Mg)

22

27 

30 

31 

33 

35

36 

36 

36 

26 

11 

10 

11

13 

12 

12 

12 

12 

12

13 

14

So22 

29 

34 

35 

32 

39

36 

37 

37 

23 

9.4 

7.2 

9.1

10 

10 

10 

10 

11 

12

12 

14

Potassium 

(K)

6.2 

6.0 

5.8 

4.4 

4.2 

4.8

5.4 

6.0 

6.4

6.0 

7.0 

7.4

2.2 

2.2 

2.2 

2.3 

2.3 

2.1

2.1 

2.1

Bicarbonate 

(HCOa)

206 

251 

249 

268 

259 

282

280 

276 

290 

246 

157 

124 

135

141 

132 

136 

137 

143 

144

149 

160

Carbonate 

(CO,)

6 

0 

10 

0 

11 

6

7 

11 

6 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0

Sulfate 

(SO.)

49 

65 

71 

72 

75 

78

77 

78 

75 

49 

19 

17 

23

21 

21 

20 

20 

21 

21

24 

25

Chloride 

(Cl)

15 

22 

24 

23 

25 

26

26 

26 

26 

19 

9.2 

6 

10

6.5 

6.8 

6.8 

6.5 

7.3 

7.0

8.2 

8.0

Fluoride 

(F)

0.6 

.4 

.4 

.4 

.4 

.3

.4 

.4 

.3

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4 

.2

.2 

.2

Nitrate 

(NO,)

2.2 

2.2

1.9 

1.6 

1.2 

1.3

1.0 

1.2 

1.5 

1.5 

2.2 

1.6 

1.2

1.1 

1.1 

1.3 

1.1 

1.4 

.1

.8 

.7

Boron 

(B)

0.12 

.09 

.20 

.19 

.26 

.27

.28 

.22 

.28

.11 

.20

.17 

.05 

.08 

.19 

.07 

.15

.20 

.13

Pa

p

m

li
GILA RIVER BASIN Continued

VERDE RIVER BELOW-BARTLETT DAM, ARIZ Continued 

Chemical analyses, in parts per million, water year October 19S1 to September 1

iT!?.te of collection

Apr. 21-30, 1952 

May 1-10. .......

May 11-20.......

May 21-31.......

June 1-10 .......

Junfc 11-20 ......

June 21-30 ......

July 1-10........

Ju)y 11-20. ......

Aug. 1-10.......

Aug. 21-31......

Sept. 11-20 ..... 

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

1,049 

1,197 

502 

1,383

1,262 

1,839 

2,094 

1,241 

1,073 

1,048

1,356 

660 

375 

1,037 

378 

846

833

Silica 

(810.)

20 

17 

20 

20

21 

19 

19 

18 

20 

24

23 

19 

19 

16 

20 

16

21

Iron 

(Fe)

0.16 

.05 

.06 

.08

.09 

.10 

,06 

.02 

.02 

.01

.00 

.01 

.01 

.01 

.01 

.01

0.06

Calcium 

(Ca)

33 

30 

29 

28

28 

27 

31 

33 

33 

34

37 

41 

45 

46 

43 

38

34

Magnesium 

(Mg)

14 

14 

13 

12

11 

11 

13 

15 

15 

15

16 

19 

22 

24 

27 

25

16

Sodium 

(Na)

14 

13 

12 

12

12 

12 

14 

12 

13 

13

16 

19 

22 

26 

30 

27

16

Potassium 

(K)

2.1 

1.9 

2.0 

1.9

1.9 

2.0 

2.3 

2.2 

2.3 

2.3

2.5 

2.8 

3.2 

3.5 

3.5 

3.3

2.7

Bicarbonate 

(HCO,)

160 

152 

146 

140

137 

138 

157 

165 

166 

172

181 

204 

223 

234 

226 

202

171

Carbonate 

(CO,)

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

"

Sulfate 

(S0«)

25 

24 

21

19

18 

18 

21 

22 

23 

25

27 

34 

42 

51 

65 

61

30

Chloride 

(Cl)

8.8 

8.8 

7.0 

7.2

6.5 

7.0 

8.5 

8.0 

8.5 

9.0

12 

14 

17 

17 

22 

20

11

Fluoride 

(F)

0.2 

.2 

.3 

.3

.3 

.3 

.3 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.3 

.3

0.3

Nitrate 

(NO,)

0.7 

.7 

.6 

.3

.9 

.8 

.5 

.9 

1.4 

.8

.9 

.9 

1.4 

1.4 

1.3 

1.0

0.9

Boron 

(B)

0.28 

.14 

.09 

.09

.07 

.10 

.07 

.17 

.17 

.18

.08 

.17 

.19 

.19 

.20 

.18

0.15

(r

Par

pe

mi

lio

2

1

1

1

1

1

1

2

2

2

2

2

a 2

2

3

2

22

a Computed as sum of dissolved constituents.
GILA RIVER BASIN 209

GILA RIVER BASIN Continued 

VERDE RIVER BELOW BARTLETT DAM, ARIZ. Continued

Tempera tur 

/"Once-daily temt

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

SO

31

Average

Oct.

73

72

76

73

72

75

77

76

76

72

69

67

68

68

67

67

67

67

65

67

67

66

b65

b65

b67

b68

60

62

62

59

62

68

Nov.

62

a 60

a 64

a 64

a 62

60

60

a 62

58

56

56

58

62

56

b62

b60

55

55

54

b54

60

56

58

b60

b48

_

b55

51

51

51

~

58

Dec.

52

51

51

51

52

51

50

50

50

56

b59

55

b50

46

47

47

45

47

49

56

49

b45

49

45

46

49

48

49

49

49

49

50

e (°F) of water, water October 1951 to September 1952 

erature measurement generally made between 6 a. m. and 9 a. m.7

Jan.

48

44

45

46

48

44

54

55

54

53

50

49

50

51

50

49

50

a 49

45

50

55

54

55

54

45

46

45

45

45

41

46

49

Feb.

45

46

48

56

54

56

56

46

46

48

46

48

48

54

52

48

48

51

56

56

55

55

56

49

47

48

48

50

48

--

50

Mar.

52

52

54

54

50

52

49

48

51

49

47

46

44

50

50

46

b50

48

47

_

_

_

_

56

56

52

57

59

_

Apr.

56

56

51

52

53

53

53

52

52

56

48

50

52

50

54

53

53

54

53

54

54

55

55

56

54

54

52

46

50

53

53

May

56

58

59

59

59

58

55

60

55

58

56

60

59

59

57

57

56

59

60

60

60

65

66

66

..

68

65

64

68

66

60

June

65

66

62

62

64

68

..

66

66

65

64

63

65

63

63

65

65

74

75

75

74

76

75

72

65

65

65

65

67

July

65

74

66

68

69

65

69

63

64

64

66

65

65

65

68

63

70

70

68

70

69

70

69

69

66

65

65

66

66

70

67

Aug.

75

76

76

70

76

79

77

77

76

76

73

72

74

78

72

72

70

76

72

72

71

74

75

74

74

74

73

74

74

74

73

74

Sept.

73

75

75

77

76

76

76

77

76

78

74

69

66

70

75

76

76

77

77

76

76

77

77

74

74

70

72

68

76

75

a Observation made between 9:30 a.m. and 1C a.m. 

b Observation made between 2p.m. and 3 p.m.
GILA RIVER BASIN Continued 

AGUA FRIA RIVER BELOW LAKE PLEASANT DAM, ARIZ.

LOCATION. At water-stage recorder on canal It miles downstream from Lake Pleasant Dam on Agua Fria River

23 miles upstream from New River.

DRAINAGE AREA. 1,460 square miles, approximately (above Lake Pleasant Dam). 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952.

EXTREMES, 1951-52. Dissolved solids: Maximum, 288 ppm Jan. 21-28; minimum, 168 ppm Jan. 29-31, Feb. 1-1

Hardness: Maximum, 181 ppm Jan. 21-28; minimum, 108 ppm June 21-30.

Specific conductance: Maximum observed, 487 micromhos Jan. 23; minimum observed, 241 mlcromhos Jan. 29

Water temperatures: Maximum observed, 73°F May 6-7, 11; minimum observed, 41*F on several days during 

REMARKS. Values reported for dissolved solids are residues on evaporation. Values shown as extremes rela

conductance of daily samples available in district office at Albuquerque, N. Hex. Samples collected f

Lake Pleasant at headgates, and are those for which no discharge Is shown. Records of discharge furni

for water year October 1951 to September 1952.

Chemical analyses

Date of collection

Oct. 5, 12, 19, 26,

Nov. 2, 9, 16, 23,

Dec. 7, 14, 21, 28 

Jan. 4, 11, 18,

1QKQ

Jan. 29-31, Feb. 

1-10 ...........

Feb. 11-20 .......

Mar. 21-31 .......

May 21-31 ........

Mean 

discharge 

(cfs)

28.6 

7.38

10.8 

38.7 

38.2 

28.6 

15.9

41.3 

20.3 

28.7 

12.6 

28.4 

89.0

Silica 

(310.)

25 

19

26 

36 

24 

19 

21

22 

16 

11 

12 

17 

22

Iron 

(Fe)

0.03 

.05

.04 

.04 

.08 

.10 

.13

.07 

.04 

.02 

.04 

.03 

.03

Calcium 

(Ca)

30

29 

32

32 

46

32

36 

39 

33 

32 

33

34 

30 

31 

33 

34 

32

Magnesium 

(Mg)

6.7

6.3 

7.3

6.7 

16

7.8

9.3 

12 

9.5 

9.4 

9.8

11 

9.5 

9.8 

9.7 

9.8 

9.6

Sodium 

(Na)

14

11 

11

11 

27

8.8

15 

25 

13 

12 

13

14 

16 

17 

17 

18 

17

Potassium 

(K)

7.6. 

3.6

4.4 

4.4 

5.0 

5.2 

5.4

4.6 

3.1 

2.9 

3.0 

3.3 

3.3

Inpartt

Bicarbonate 

(HCO,)

209 

129

150 

179 

142 

133 

142

154 

137 

143 

149 

154 

142

oer million, water year October 1981 to Septe

Sulfate 

(SO,)

35 

18

21 

29 

23 

21 

19

23 

22 

22 

22 

23 

24

Chloride 

(Cl)

26 

6.5

12 

18 

10 

11 

12

12 

10 

9.8 

9.2 

11 

11

Fluoride 

<F)

0.3 

.3

.3 

.4 

.4 

.3 

.3

.3

.4 

.4 

.4 

.4 

.4

Nitrate 

(NO,)

1.0 

.6

.9 

1.7 

1.6 

1.6 

1.6

1.8 

1.4 

1.4 

1.8 

1.5 

1.6

Boron 

(B)

0.11 

.04

.11 

.20 

.08 

.06 

.07

.09 

.00 

.10 

.13 

.09 

.10

Dis

(res

Parts 

per 

million

177

186 

169

168 

288

168

206 

265 

202 

186 

198

204 

189 

187 

193 

203 

199
June 1-10, 1952 . .

Sept. 21-30......

Weighted average

103 

129

910

295

947

51.6

a 117

22

94

22

20

24

21

.01 

.02

.01

.01

.02

0.02

30 

30

31

33

33

34

35

36

33

8.S

8.2 8 9 8 * 8 0 8 9

9.2 9 «

9.4

8.8

14

15

12

12

13

3.2 

3.3

3.3 3 0 3 9

3.3

3.2 3 9

3.3

3.3

128

134

134

136

142

144

154

138

23

23

22

21

20

19

20

8.5 8 9

6.0

6.5

6.5

8.3

7.2

7.8

.4

.3

.3

.3

.3

0.3

l.« 

2.0

1.5

2.7

1.3

.08 

.08

.08

.17

.14

.09

.08

.08

0.12

18

19

IRA

18

toe

18

199

18

a Average for 254 days of flow.
212 COLORADO RIVER BASIN

GILA RIVER BASIN Continued

AGOA FBI A RIVER BELOW LAKE PLEASANT DAM, &HIZ.--Continued 

Temperatare (°F) oJ water, water year Octotw 1951 to September 19S2

Day

1

2

3

4

5

6

7

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

Oct. Nov. Dec. Jan,

_

__

._

_

_

._

_

..

a 41

41

41

41

41

41

41

41

41

41

41

Feb. | Mar. Apr.

« 52 S 80

41 1 50

41

41

41

42

42

42

42

42

42

43

43

42

42

47

47

51

46

46

48

48

48

50

50

50

51

52

52

45

§2

K!

52

52

52

54

53

52

52

50

51

51

51

51

50

52

53

53

52

52

51

51

51

51

55

54

54

53

56

52

56

58

58

91

58

64

63

63

62

82

60

61

62

63

63

64

65

66

66

65

64

68

67

67

66

67

65

64

64

~

63

May i J-.130 j July .... 

67

71

7G

72

72

78

73

71

71

71

73

71

72

70

72

70

70

88

68

71

69

71

66

67

68

66

65

65

68

64

65

69

^ 

65

ee

63

64

M 61

60 > 64

6S

36

ev

66

66

64

64

63

66

85

63

63

64

61

66

64

64

63

63

83

63

63

63

64

61

62

64

62

62

62

62

63

63

62

63

63

62

62

63

62

63

63

63

63

63

62

63

64

63

63

65

64

62

62

63

Aug.

62

82

60

62

62

81

82

62

62

62

62

62

60

60

61

70

60

63

63

63

62

63

62

64

64

64

60

81

64

64

63

62

S*i?£.

63

84

63

62

62

62

63

62

62

62

82

61

62

61

62

63

63

63

65

66

65

65

66

86

69

68

68

68

87

68

~

64

a Observation made at 10 a. m.
GILA RIVER BASIN Continued 

GILA RIVER BELOW GILLESPIE DAM, ARIZ.

LOCATION. About 1 mile below gaging station on Gila Bend Canal which is 200 feet below Gillespie Dam, M

River. Gila Bend Canal diverts from left bank and Enterprise Canal diverts from right bank at Gilles

DRAINAGE AREA. 49,620 square miles, (revised). 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952'.

EXTREMES, 1951-52. Dissolved solids: Maximum, 6,450 ppm Oct. 11-20; minimum, 791 ppm Jan. 21-22. 

Hardness: Maximum 1,940 ppm Oct. 11-20; minimum, 226 ppm Aug. 16-17.

Specific conductance: Maximum observed, 10,200 mlcromhos Oct. 3; minimum observed, 1,030 mlcromhos No

Water temperatures: Maximum observed 88°F July 28; minimum observed, 45'F Dec. 22.

EXTREMES, 1950-52. Dissolved solids: Maximum 6,450 ppm Oct. 11-20 1951; minimum 262 ppm Sept. 1, 1951. 

Hardness: Maximum 1,940 ppm Oct. 11-20, 1951; minimum, 135 ppm Sept. 1, 1951.

Specific conductance: Maximum observed, 10,200 micromhos Oct. 3, 1951; minimum observed 420 micromhos 

Water temperatures: Maximum observed, 95"F July 19, 1951; minimum observed, 35"F Jan. 1, 1951.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

office at Albuquerque, N. Mex. Samples from canal are believed to be representative of total flow pa

ted Into Gila Bend and Enterprise Canals. Record of separate and combined discharge for the river an

given in WSP 1243.

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951 . .

Oct. 21-31.......

Nov. 11-20 ......

Dec. 1-10 .......

Dec. 21-31, Jan.

Jan. 5...........

Jan. 6-10........

Jan. 11-16, 20... 

Jan. 17..........

Jan. 18-19.......

Jan. 23-24.......

Jan. 25-31.......

Mean

discharge 

(cf«)

60.7 

56.5 

67.1 

381 

149 

77.6 

61.5 

71.3

68.2 

66.3

70.6 

144 

110 

105 

108 

341 

142 

450 

208 

133

Silica 

(SiOJ

48 

37 

31 

11 

18 

31 

31 

28

30 

32

32 

18 

19 

29 

38 

21 

31 

23 

25 

34

Iron 

(Fe)

0.01 

.01 

.02

.01 

.01 

.02

.02 

.02

.02 

.02

.02 

.02

.03 

.02

Calcium 

(Ca)

444 

448 

436 

86 

208 

420 

450 

432

432 

428

426 

104 

166 

348 

408 

150 

272 

88 

184 

330

Magnesium 

(Mg)

192 

200 

189 

29 

74 

181 

188 

191

188 

187

184 

39 

68 

144 

176 

31 

110 

25 

65 

141

Sodium 

(Na)

1,550 

1,570 

1,560 

179 

574 

1,400 

1,570 

1,470

1,480 

1,500

1,450 

234 

461 

1,100 

1,400 

3 

769 

1 

3 

1,050

Potassium 

(K)

11 

11 

6.0 

6.8 

8.8 

11 

7.6 

7.0

8.4 

9.2

7.0 

7.2 

6.4 

7.2 

8.0 

11 

8.0 

95 

16 

7.4

Bicarbonate 

(HCO,)

382 

390 

409 

142 

234 

408 

451 

408

408 

425

419 

153 

220 

364 

414 

179 

a 309 

155 

227 

b353

Sulfate 

(SO,)

1,300 

1,310 

1,240 

171 

479 

1,150 

1,240 

1,220

1,210 

1,220

1,180 

254 

430 

917 

1,170 

306 

573 

176 

484 

826

Chloride 

(Cl)

2,560 

2,650 

2,520 

305 

970 

2,330 

2,570 

2,420

2,440 

2,430

2,370 

375 

765 

1,800 

2,280 

500 

1,410 

245 

860 

1,780

Fluoride 

(F)

2.4 

2.2 

2.2 

.4 

.6 

2.0 

2.4 

2.2

2.2 

2.2

2.2 

.6 

1.1 

1.8 

2.0 

1.2 

1.6 

.8 

1.2 

1.4

Nitrate 

(NO,)

35 

34 

28 

6.5 

13 

37 

35 

28

31 

29

31 

6.9 

12 

27 

17 

6.7 

16 

2.6 

10 

11

Boron 

(B)

3.3 

3.3 

3.4 

.48

3.0 

3.1 

2.8

2.7 

2.7

2.6 

.65

2.4 

2.8 

.50

.22 

.85 

1.8

Dis

Parts 

per 

million

6,330 

6,450 

6,210 

865 

2,460 

5,760 

6,320 

6,000

6,020 

6,050

5,890 

1,110 

2,040 

4,550 

5,700 

1,410 

3,340 

791 

2,060 

4,350

a Includes equivalent of 8 parts per million of carbonate (CO,), 

b Includes equivalent of 22 parts per million of carbonate (CO,).
GIU RIVER BASI1I Continued

GILA RIVER BELOW GILLESPIE MM, ARIZ.--Continued 

Chemical analyses, in parte per million, water year October 1951 to Septemb

Date of collection

Feb. 1-10, 1952.. 

Feb. 11-20 ......

Mar. 1-10 .......

Apr. 11-20 ......

May 1-10 ........

May 11-20 .......

July 11-20 .......

July 21-27, 29 ... 

July 28, 30-31 ...

Aug 11-15

Aug 22-31

Rant 1-in

Sept. 11-20......

Sept. 21-30 ......

Weighted average

Mean 

discharge 

(cfs)

97.4 

84.8 

81.6 

76.9 

105 

80.2

77.2 

88.1 

79.0 

67.1 

55.7 

49.5

44.5 

37.1 

36.7 

37.1 

26.6 

40.1 

106

70 

32.2 

28.2 

114 

159 

52.2 

34.2 

30.3 

29.0

71.1

Silica 

(SiOJ

37 

34 

30 

33 

31 

32

29 

34 

40 

38 

36 

31

32 

26 

33 

33 

33 

28 

19

25 

33 

33 

26 

28 

32 

32 

32 

30

31

Iron 

(Fe)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.00 

.00 

.01 

.01 

.03

.01 

.01 

.02 

.01 

.01 

.00 

.01

.01 

.01 

.02

.02 

.01 

.01 

.01 

.02

0.01

Calcium 

(Ca)

402 

410 

412 

418 

358 

406

410 

366 

370 

392 

378 

362

366 

330 

360 

354 

384 

344 

96

227 

356 

372 

64 

96 

344 

356 

366 

366

353

Magnesium 

(Mg)

175 

177 

177 

177 

155 

177

178 

164 

164 

162 

185 

157

167 

162 

160 

156 

164 

148 

29

87 

152 

157 

16 

28 

134 

154 

164 

160

149

Sodium 

(Ha)

1,350 

1,350 

1,370 

1,410 

1,240 

1,430

,440 

,400 

,430 

,390 

,390 

,360

1,430 

1,520 

1,460 

1,360 

1,480 

1,360 

284

850 

1,360

1.42Q 

124 

304 

1,180 

1,360 

1,420 

1,430

1,220

Potassium 

W

11 

11 

12 

11 

10 

11

12 

11 

11 

11 

11 

11

11 

12 

12 

11 

12 

12 

8.5

11 

12 

12 

8.4 

8.1 

12 

11 

11 

11

9.8

Bicarbonate 

(HCO.)

414 

403 

293 

426 

374 

410

408 

391 

403 

372 

373 

354

335 

388 

353 

315 

336 

312 

191

300 

348 

401 

137 

243 

405 

330 

335 

325

355

SuUate 

(SO,)

1,130 

1,150 

1,140 

1,170 

1,010 

1,170

,210 

,120 

,150 

,100 

,130 

,080

,170 

,160 

,160 

,130 

,160 

,120 

244

693 

1,130 

1,130 

102 

259 

986 

1,170 

1,190 

1,200

1,000

Chloride 

(Cl)

2,240 

2,290 

2,350 

2,360 

2,030 

2,350

2,370 

2,190 

2,210 

2,210 

2,200 

2,140

2,270 

2,310 

2,230 

2,100 

2,310 

2,090 

400

1,270 

2,100 

2,190 

198 

394 

1,870 

2,080 

2,200 

2,210

1,980

Fluoride 

(F)

2.2 

2.2 

2.2 

2.2 

2.0 

2.2

2.4 

2.2 

2.0 

l.B 

1.8 

1.8

l.B 

2.6 

2.4 

2.4 

2.4 

2.4 

.9

1.6 

2.2 

2.2

.9 

1.8 

2.2 

2.4 

2.4

1.9

Nitrate 

(NO,)

22 

23 

21 

22 

21 

25

21 

27 

27 

34 

32 

28

31 

15 

31 

27 

29 

27 

11

21 

28 

27 

11 

7.9 

24 

36 

31 

35

24

Boron 

(B)

2.7 

2.6 

2.7 

2.7 

2.4 

2.9

2.9 

2.3 

2.9 

2.0 

2.0 

1.8

1.8 

2.7 

3.0 

2.7 

2.8 

2.4 

.47

2.0 

2.4

3.0

.90 

2.6 

2.7 

3.2 

3.1

2.4

Par

pe

mil

lion

5,57

5,65

5,71

5,81

5,04

5,81

5,87

5,51

5,60

5,52

5,53

5,34

5,64

5,72

5,64

5,33

5,74

5,29

1,19

3>3

5,34

5,54

8

1,25

4,78

5,36

5,56

5,60

4,94
GILA BIVEB BASIN 215

GILA RIVER BASIN Continued 

GILA RIVER BELOW GILLESPIE DAM, ARIZ.~Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement generally between 6 a.m. and 9 a.m77

D»y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

28

27

28

29

30

31

Average

Oct.

75

75

73

70

68

70

67

70

70

70

70

68

68

65

64

62

64

65

65

65

67

65

61

61

a 67

63

60

60

62

67

63

66

Nov.

62

60

60

56

~

60

60

57

b65

66

b69

64

60

60

60

60

60

60

57

65

60

60

60

60

58

57

57

57

57

57

~

60

Dec.

55

55

53

57

58

50

53

50

50

48

50

54

a 50

50

53

50

50

50

53

53

47

45

46

50

55

54

54

55

56

57

57

52

Jan.

53

51

50

48

47

47

50

50

50

50

51

50

53

54

52

51

52

, 54

54

51

51

52

52

53

52

50

53

52

52

54

53

51

Feb.

a 54

55

55

55

55

55

a 55

56

54

55

55

55

55

51

51

52

52

51

54

53

53

53

55

55

54

55

55

55

60

54

Mar.

60

58

55

55

55

56

57

60

60

57

55

58

57

56

57

58

57

56

58

58

56

58

58

58

59

60

60

65

65

65

65

58

Apr.

65

65

65

65

66

68

69

69

69

69

67

67

68

71

67

66

67

66

68

67

67

65

65

65

67

67

65

65

65

65

67

May

70

70

74

70

75

75

75

75

75

73

75

70

73

74

74

70

73

72

--

~

73

73

73

74

74

_

--

a 77

a 77

a 75

72

73

June

a 78

73

75

74

73

74

a 75

75

75

75

72

74

72

75

75

70

75

80

60

75

75

75

80

80

75

75

74

73

75

74

75

July

76

76

76

75

77

a 80

80

80

83

82

80

75

a 60

75

77

72

80

80

84

79

78

79

75

83

82

85

87

88

80

60

78

79

Aug.

82

81

83

83

83

84

83

85

83

80

81

81

84

82

82

81

83

80

82

83

81

82

80

80

82

81

81

60

60

80

80

82

Sept.

80

80

80

80

82

80

81

80

81

77

72

66

65

68

68

75

76

78

80

80

78

76

75

74

73

70

70

70

70

70

"

75

a Observation made between 10 a. m. and 12m. 

b observation made between 1 p. m. and 2:30 p. m.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT YUMA, ARIZ.

LOCATION. At gaging station 1,800 feet downstream from highway bridge at Yuma, Yuma County, half a mile 

stream from Gila River, 7 miles upstream from boundary between California and Mexico, and 19 miles dow

DRAINAGE AREA. 242,900 square miles, approximately, including all closed basins entirely within the drai

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 to February 1943, 

EXTREMES. See Yuma Main Canal below Colorado River Siphon at Yuma, Ariz. 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1243.

Chemical analyses, in parts per million, October 1951 to July 19

Date of collection

Oct. 8, 1951 ......

Jan. 10, 1952 ..... 

Mar. 10 ..........

Apr. 8 ...........

Apr. 11 ..........

July 18 ............

Mean 

discharge 

(cfs)

2,930 

3,920

4,190 

9,900

16,000 

12,000 

12,200

13,800 

12,900

7,620

Silica 

(310.)

13

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

165 

169

170 

166

167 

170 

171

172 

175

172

Carbonate 

(CO,)

Sulfate 

(SO,)

280 

277

281 

271

271 

271 

285

297 

300

298

Chloride 

(CD

95 

91

94 

84

82 

89 

89

91 

87

89

Fluoride 

(F)

Nitrate 

(NO,)

1.4 

.8

Boron 

(B)
DIVERSIONS AMD RETURN FLOWS AT AND BELOW IMPERIAL DA

YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT YUMA, A

LOCATION.--At gaging station on Yuma Main Canal below Colorado River siphon at Yuma, Yuma County, on Ar

power plant.

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 to September 195

EXTREMES, 1951-52. Dissolved solids: Maximum, 736 ppm May 21-23, 26-29; minimum, 630 ppm Sept. 22-24, 

Hardness: Maximum, 347 ppm Dec. 11-14, 17-20; minimum, 308 ppm Sept. 22-24, 26, 29, 30.

Specific conductance: Maximum daily, 1,110 micromhos on several days during May to July; minimum dai

EXTREMES, 1943-52. Dissolved solids: Maximum, 760 ppm Apr. 21-26, 28-30, 1947; minimum, 562 ppm Dec. 

Hardness: Maximum, 372 ppm June 1-3, 5-10, 1944; minimum, 276 ppm Dec. 12-16, 19-20, 1949.

Specific conductance: Maximum daily, 1,150 micromhos on several days in May and June, 1944 and June 

REMARKS. Samples collected prior to February 1943, were from gaging station on the Colorado River at Y

on evaporation. Records of specific conductance ol daily samples available in district office at Al

year October 1951 to September 1952 given in WSP 1243.

Chemical analyses, In parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-5, 8-10, 1951

Oct. 11-12, 15-19

Oct. 23-26, 29-31

Nov. 1-2, 5-9 ....

Nov. 12-16, 19-20

Nov. 21-23, 26-30

Dec. 3-7, 10 .....

Dec. 11-14, 17-20

Dec. 21, 24, 26-28,

31..............

Jan. 2-4, 7-10, 1952

Jan. 11, 14-18 ...

Jan. 21-25, 27-31.

Feb. 1, 4-8 ......

Feb. 11-15, 18-20

Feb. 21, 25-26, 28-

29. .............

Mar. 3-7,10 .....

Mar. 11-14, 17-20

Mar. 21, 24-28, 31

Apr. 1-4, 7-10 ...

Apr. 11, 14, 16-16

Apr. 21-25, 28-30

Mean 

discharge 

(cfs)

721

658

546

418

412

398

280

258

164

302

273

267

468

410

498

484

510

494

565

670

458

Silica 

(SiOJ

18

18

14

14

14

16

13

12

13

16

13

13

15

13

12

13

14

13

11

13

14

Iron 

(Fe)

Calcium 

(Ca)

81

82

84

84

83

86

87

88

87

86

83

84

86

85

86

88

85

82

84

86

87

Magnesium 

(Mg)

30

31

30

30

30

30

30

31

30

30

29

28

28

28

28

28

27

26

27

29

29

Sodium 

(Na)

102

102

102

102

102

106

106

103

102

100

97

inn 1UU

100

97

99

96

95

99

101

102

Potassium 

(K)

.5

.6

.5

.6

.5

.6

.2

.2

.6

.2

.1

.0

.1

.0

.0

.2

.3

.3

.3

.6

.6

Bicarbonate 

(HCO.)

166

170

170

170

172

174

186

184

176

168

169

168

172

173

170

168

166

166

170

174

175

Sulfate 

(SO,)

287

286

288

291

293

285

281

280

noA AOV

278

284

280

286

285

284

284

272

270

279

289

296

Chloride 

(CD

88

88

87

88

89

88

86

86

84

82

77

81

83

80

80

79

79

80

87

88

Fluoride 

(F)

Nitrate 

(NO,)

0.8

.8

.8

.8

.9

.9

.8

.8

.9

.9

.7

.7

.6

.4

.1

.6

.6

.6

.6

.6

.6

Boron 

(B)

0.28

_

.30

..

_

"_

.11

__

"

.13

..

.19

D

(re

Parts 

per 

million

70

71

70

70

71

71

71

71

71

69

70

69

71

71

70

68

67

66

68

72

73
DIVERSIONS AMD RETURN FLOWS AT AMD BELOW IMPERIAL DAM Con

YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT YUMA, ARIZ.--C

Chemical analyses, in parts per million, water year October 19S1 to September 195

Date of collection

May 1-2, 5-8, 1952

May 12-16, 19-20

May 21-23, 26-29

June 2-6, 9-10 ...

June 11-13, 16-20

June 23-27, 30 ...

July 1-3, 7-10....

July 11, 14-18....

July 21-25, 28-31

Aug. 1, 4-8

Aug. 11-15, 18-20

Aug. 21-22, 25-29

Sept. 1-5, 8-10...

Sept. 11-12, 15-19

Sept. 22-24, 26, 29-

30 .............

Weighted average

Mean 

discharge 

(cfs)

486

495

724

731

731

704

623

838

753

664

754

849

665

822

712

a 549

Silica 

(310.)

12

13

12

12

14

13

13

13

15

14

23

16

16

16

13

14

Iron 

(Fe)

Calcium 

(Ca)

87

86

88

90

90

90

85

86

84

83

85

82

81

78

79

85

Magnesium 

(Mg)

29

29

30

29

29

29

28

29

30

30

29

28

29

28

27

29

Sodium 

(Na)

103

102

103

107

108

108

107

107

102

100

96

93

91

92

89

100

Potassium 

<K)

4.6

4.6

4.6

4.6

4.8

4.7

4.7

4.7

4.7

4.4

4.4

4.2

4.2

4.1

3.9

4.4

Bicarbonate 

(HCO,)

173

176

175

174

175

172

16%

168

164

163

166

162

163

156

160

169

Sulfate 

(S04)

290

285

292

298

398

302

298

295

285

283

272

268

261

261

255

283

Chloride 

(Cl)

88

88

88

90

89

88

87

87

84

82

82

79

76

76

74

84

Fluorlde 

(F)

Nitrate 

(NO,)

1.7

1.7

1.8

1.6

1.9

1.9

2.2

1.7

1.0

1.0

1.1

1.2

1.2

1.1

1.2

1.4

Boron 

(B)

._

--

"

_

0.09

.17

_

--

~

Dise

(residu

Parts 

per 

million

731

734

736

730

733

727

719

719

702

692

683

665

652

643

630

700

a Represents 71 percent of runoff for water year October 1051 to September 1052.
PART 10. THE GREAT BASIN

SEVIER LAKE BASIN 

SEVIER RIVER NEAR LYNNDYL, UTAH

LOCATION. At bridge on State Highway 125, 1J miles upstream from gaging station which is 3| miles southw

DRAINAGE AREA. 6,270 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 2,830 ppm April 21-28; minimum 864 ppm March 29-31.

Hardness: Maximum, 1,050 ppm Apr. 21-28; minimum, 424 ppm Mar. 29-31.

Specific conductance: Maximum daily, 4,620 micromhos Apr. 21; minimum daily, 1,340 micromhos Mar. 30.

Water temperaturee: Maximum observed, 81*F Aug. 3; minimum observed, 33°F on many days during December 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 2,830 ppm Apr. 21-28, 1952; minimum, 86

Hardness: Maximum, 1,050 ppm Apr. 21-28. 1952; minimum, 424 ppm Mar. 29-31, 1952.

Specific conductance: Maximum daily, 4,620 micromhos Apr. 21, 1952; minimum daily, 1,340 micromhos Mar

Water temperatures: Maximum observed, 81'F Aug. 3, 1952.

REMARKS. Values reported for dissolved solids are sums of determined constituents. Records of specific 

office at Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 gi

Chemical analyses, In parts per mllllou, water year October 1951 to Septe

Date ot collection

Oct. 1-10, 1951... 

Oct. 11-20........

Oct. 21-31 .......

Nov. 1-10........

Nov. 11-20.......

Nov. 21-30.......

Dec. 1-10........

Dec. 11-20.......

Dec. 21-31.......

Jan. 1-10, 1952... 

Jan. 11-20 .......

Jan. 21-24 .......

Jan. 26-31 .......

Feb. 1-10........

Feb. 11-20.......

Feb. 21-29.......

Mar. 1-10. .......

Mar. 11-22.......

Mar. 23-26, 28... 

Mar. 27*........

Mar. 19-31.......

Mean 

discharge 

(cfs)

65.1 

39.6 

29.7 

40.5 

55.2 

49.9

30.0 

30.0 

30.0 

30.0 

30.0 

30.0 

30.0

27.3 

24.0 

23.2 

23.0 

24.2 

32.6 

42.0 

135

Silica 

(S10J

18 

17 

21 

20 

17 

17

22 

20 

20 

20 

18 

17 

21

22 

22 

21 

19 

19 

16

15

Iron 

(Fe)

0.05 

.05 

.04 

.03 

.03 

.03

.04 

.03 

.03 

.03 

.03 

.04 

.05

.05 

.08 

.07 

.08 

.07 

.06

.06

Calcium 

(Ca)

90 

102 

125 

111 

98 

104

140 

134 

128 

132 

116 

90 

140

146 

151 

164 

160 

155 

92

73

Magnesium 

(Mg)

100 

109 

121 

103 

91 

99

129 

117 

111 

113 

98 

79 

148

147 

138 

150 

148 

135 

92

59

Sodium 

(Na)

330 

340 

394 

289 

234 

265

420 

401 

371 

379 

310 

227 

480

510 

452 

540 

522 

457 

237

14S

Potassium 

(K)

9.2 

10 

17 

14 

13 

14

14 

8.8 

7.2 

8.8 

8.0 

4.8 

7.5

7.5 

7.5 

7.8 

8.6 

8.2 

6.8

7.3

Bicarbonate 

(HCOJ

304 

304 

324 

327 

304 

311

362 

350 

343 

361 

325 

262 

338

342 

350 

370 

350 

346 

236 

SOS 

104

Suliate 

(S04)

398 

443 

514 

381 

316 

360

562 

505 

477 

470 

409 

303 

658

656 

613 

706 

670 

594 

330 

511 

994

Chloride 

(CD

605 

545 

632 

490 

408 

455

685 

640 

595 

575 

505 

370 

765

795 

720 

820 

820 

740 

418 

670 

242

Fluoride 

(F)

0.2 

.1 

.2 

.2 

.2 

.1

.1 

.3 

.3 

.2 

.2 

.1 

.1

.1 

.2 

.2 

.2 

.2 

.3

.2

Nitrate 

(NO,)

0.8 

.7 

1.9 

2.9 

2.2 

1.8

1.8 

3.1 

3.3 

3.9 

2.1 

3.6 

2.2

3.1 

2.5 

3.9 

2.7 

3.4 

4.3

4

0

4.8

Boron 

(B)

0.47 

.32

.47 

.41

.29 

.34

Dls

Parts 

per 

million

1,600 

1,720 

1,990 

1,570 

1,330 

1,470

2,150 

2,000 

1,680 

1,880 

1,630 

1,220 

2,390

2,460 

2,280 

2,600 

2,520 

2,280 

1,310

M4

a Not included for computation of weighted average.
SEVIER LAKE BASIN Continued 

SEVIER RIVER NEAR LYNNDYL, UTAH Continued 

Chemical analyses, In parts per million, water year October 1951 to Septembe

Date of collection

Apr. 1, 1952 a ....

Apr. 11-20.......

Apr. 21-28.......

Apr. 29-30.......

May 11-20........

Tune 11-20 .......

Tune 21-30 .......

Tuly 11-20. .......

Tuly21-31........

Aug. 1-10........

Aug. 11-20.......

Sept. 1-10. .......

Sept. 21-30.......

Weighted average

Mean 

discharge 

(cfs)

76.0 

26.8 

20.2 

21.1 

44.5 

266 

748 

624

216 

338 

575 

540 

372 

445

215 

399 

363 

215 

223 

93.7

b!79

Silica 

(310.)

14 

20 

17 

17 

14 

23 

24 

23

20 

21 

15 

20 

22 

20

20 

22 

22 

18 

19 

19

21

Iron 

(Fe)

0.04 

.04 

.03

.06 

.06 

.05

.07 

.04 

.06 

.06 

.06 

.07

.06 

.05 

.05 

.04 

.04 

.04

0.05

Calcium 

(Ca)

147 

132 

156 

106 

126 

101 

95

100 

92 

86 

81 

80 

90

82 

80 

78 

76 

78 

96

93

Magnesium 

(Mg)

141 

138 

161 

103 

119 

90 

88

97 

83 

75 

72 

74 

69

73 

74 

73 

80 

83 

102

85

Sodium 

(Na)

543 

487 

600 

3 

284 

272 

273

300 

274 

238 

225 

224 

214

214 

200 

202 

237 

237 

315

257

Potassium 

(K)

10 

8.3 

9.7 

3 

9.2 

7.1 

6.5

7.4 

6.3 

6.4 

6.0 

6.1 

8.4

ff.5 

.7 

.7 

.8 

.1 

.7

7.3

Bicarbonate 

(HCO,)

188 

301 

298 

322 

287 

304 

306 

330

328 

322 

332 

330 

332 

330

334 

340 

320 

322 

341 

341

325

SuUate 

(S04 )

291 

698 

626 

775 

417 

577 

424 

394

418 

344 

317 

2(8 

288 

288

273 

270 

271 

299 

306 

407

357

Chloride 

(Cl)

315 . 

845 

775 

955 

510 

412 

372 

382

420 

372 

325 

300 

300 

295

298 

278 

282 

315 

335 

475

365

Fluoride 

(F)

0.1 

.1 

.1 

.2 

.2 

.3 

.3

.3 

.3

.2 

.3

0.3

Nitrate 

(NO,)

3.7 

1.4 

1.2 

.7 

1.5 

7.0 

11 

11

7.8 

11 

8.2 

6.5 

5.4 

4.4

4.4 

1.5 

3.6 

3.6

4.1 

4.0

6.5

Boron 

(B)

0.42 

.40 

.30

.32

.37

D

Parts 

per 

million

2,550 

2,330 

2, (30 

1,620 

1,710 

1,450 

1,440

1,530 

1,360 

1,230 

1,160 

1,160 

1,150

1,140 

1,100 

1,100

1,240 

1.590

1.350

a Not Included for computation of weighted averages.

b Represents 99.8 percent of runoff for water year October 1951 to September 1952.
SEVIER LAKE BASIN 

SEVIER LAKE BASIN Continued 

SEVIER RIVER NEAR LTONDYL, UTAH Continued 

Temperature (°F) of water, water year October 1951 to September 195?

221

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

28

27

28

29

30

31

Average

Oct.

59

59

59

62

62

62

62

65

64

62

58

60

60

54

55

60

60

54

54

54

47

47

52

53

53

53

53

55

52

57

HOT.

44

43

50

43

43

49

47

47

47

49

48

44

44

43

39

39

39

39

40

43

43

42

36

36

43

43

43

43

44

42

43

Dec.

42

40

40

37

37

37

33

33

33

35

35

33

33

33

33

33

33

33

33

33

34

34

35

35

35

33

35

Jan.

_

33

33

33

33

33

33

33

33

33

33

33

33

33

33

_

34

34

34

34

34

34

34

34

34

34

34

37

34

Feb.

36

36

36

37

36

36

36

35

35

35

_

35

35

37

39

40

41

41

41

41

41

33

33

33

33

33

34

~

36

Mar.

36

36

36

34

34

34

34

34

34

34

34

34

34

34

34

34

34

38

38

38

34

34

52

52

52

54

56

54

53

53

52

40

Apr.

57

57

61

64

67

60

67

59

51

51

52

65

65

58

58

60

66

70

56

55

56

70

_

72

72

74

66

66

66

74

63

Hay

74

73

_

66

68

60

60

60

60

64

64

65

64

64

59

55

56

64

64

59

59

59

61

64

64

52

66

66

69

69

65

63

June

69

71

67

73

74

76

76

76

76

72

74

74

68

68

64

67

_

69

73

73

68

68

68

66

66

64

76

68

68

74

71

July

74

74

74

72

72

74

74

74

74

74

74

74

74

72

74

77

76

76

76

76

76

76

76

76

76

76

78

78

76

79

75

Aug.

80

80

81

78

79

76

76

78

76

76

76

75

75

75

75

74

74

74

74

76

76

73

73

73

71

71

71

74

74

74

74

75

Sept.

74

72

73

72

74

71

71

71

70

64

64

67

66

67

68

68

68

69

70

70

70

72

70

72

69

71

72

72

70

70

70
HDMBOLDT RIVER BASIN 

HUMBOLDT RIVER NEAR RYE PATCH, NEV.

LOCATION. Below Rye Patch Dam, 1,000 feet upstream from gaging station, and 2 miles northwest of Rye P

DRAINAGE AREA. 13,700 square miles, approximately.

RECORDS AVAILABLE.--Chemical analyses: December 1951 to September 1952.

Water temperatures: December 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 570 ppm June 1-10; minimum, 512 ppm Dec. 21-31.

Hardness: Maximum, 212 ppm Sept. 1-30; minimum, 171 ppm May 1-10.

Specific conductance: Maximum daily, 883 micromhos May 17, 24; minimum daily, 784 Dec. 31, Sept. 10.

Water temperatures: Maximum observed, 76*F July 31, Aug. 1; minimum observed, 36*F on many days durin

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

Salt Lake City, Utah. Records of discharge for gaging station near Rye Patch for water year October 

No appreciable inflow between gaging station and sampling point except during periods of local rains

Chemical ana

Data of collection

Dec. 11-20, 1951 .

Jan. 1-10, 1952 . .

itor. 1-10........

Mar. 11-20 ,

Apr. 11-20 .......

Iby 11-20 .......

Auf . 1-10 .......

Aw. 21-31 ......

Mean 

discharge 

(eta)

2.1 

2.2 

2.2 

2.3

2.2 

38.9 

66.5 

101 

379 

1,136

2,799 

4,444 

2,869 

1,642 

1,565 

1,308

974 

666 

511 

221 

214 

25*

Silica 

(SiO,)

47 

45 

47 

48

49 

47 

41 

42 

40 

42

42 

43 

43 

46 

44 

48

51 

48 

45 

45 

49 

49

Iron 

(Fe)

0.04 

.05 

.05 

.02

.01 

.02 

.02 

.02 

.03 

.03

.08 

.06 

.08 

.08 

.07 

.07

.07 

.08 

.08 

.08 

.08 

.03

Calcium 

(Ca)

45 

44 

46 

46

44 

42 

43 

44 

43 

42

42 

44 

50 

46 

50 

55

53 

56 

54 

54 

54 

M

Magnesium 

(Mg)

17 

17 

17 

17

18 

18 

17 

17 

17 

17

16 

15 

15 

15 

15 

17

17 

17 

17 

17 

18 

19

Sodium 

(Na)

105 

110 

112 

101

107 

109 

107 

110 

116 

113

114 

120 

114 

119 

114 

107

107 

106 

102 

102 

98 

100

Potassium 

(K)

14 

15 

15 

14

14 

14 

14 

14 

15 

15

13 

15 

16 

17 

17 

16

16 

16 

15 

14 

15 

18

Bicarbonate 

(HCO.)

301 

316 

320 

322

320 

318 

314 

315 

315 

308

307 

294 

324 

305 

320 

354

356 

370 

358 

358 

361 

360

Sulfate 

(S04)

72 

69 

74 

68

70 

70 

70 

70 

71 

73

77 

102 

87 

102 

96 

81

76 

70 

66 

65 

65 

65

Chlorids 

(Cl)

67 

67 

68 

67

74 

75 

76 

74 

76 

79

74 

70 

62 

67 

64 

58

56 

53 

53 

54 

55 

55

Fluoride 

(F)

0.8 

.8 

.7 

.8

.8 

.8 

.8 

.8 

.8 

.8

.9 

.8 

.8 

.8 

.8 

.9

.9 

.7 

.7 

.7 

.9 

1.0

Nitrate 

(NO,)

0.4 

.4 

.3 

.5

.3 

.4 

.5 

.4 

.3 

.1

.8 

.8 

.8 

.9 

.9 

1.8

1.8 

1.8 

1.9 

1.7 

.8 

.5

Boron 

(B)

0.43 

.44 

.48

.53 

.48

.50

leptem

D

(re

Parts 

per 

million

51

51

52

53

54

54

53

53

54

54

52

56

58

57

55

56

58

55

54

53

54

94
Sept. 1-10, 19S2 . 

Sept 11-20 .

Sept. 21-20 ......

Weighted average

424 

87.4

81.0

a 796

46 

44

45

44

.O^ 54 

.OS 54

.11 54

0.06J 48

19 

19

19

16

98

101

113

16 

16

16

15

362

360

362

321

66 

64

65

86

56 

58

59

66

.9 

.8

.9

0.8

.6 

.6

.6

0.9

.53

54

54

54

55

a Represents 99 percent of runoff for water year October 1951 to September 1952.
224 THE GREAT BASIN

HUMBOLDT RIVER BASIN Continued 

HUMBOLDT RIVER NEAR RYE PATCH, NEV. Continued 

Temperature (°F) of water, December 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct. Nov. Dec.

..

 i

_

37

37

37

36

36

37

37

38

36

36

36

36

37

37

36

36

36

36

36

36

37

Jan.

36

36

36

36

36

36

36

36

36

36

36

37

37

37

37

37

37

37

37

37

--

_

--

Feb. Mar.

39

40

39

39

39

39

39

39

39

39

39

39

39

39

39

39

40

41

40

39

39

40

41

41

42

42

42

42

42

44

44

40

Apr.

44

45

45

46

46

46

45

46

47

47

47

48

47

47

49

52

52

51

51

50

52

52

52

51

53

54

56

56

55

55

--

50

May

55

56

57

57

57

57

57

58

59

59

58

60

59

61

60

60

61

61

62

60

62

62

63

62

66

64

65

64

65

65

63

60

June

66

66

67

71

66

67

70

71

68

67

66

66

66

66

68

67

67

66

68

65

67

67

65

65

65

66

65

65

67

67

--

67

July

67

67

68

68

68

68

68

69

69

68

69

69

69

70

70

70

71

70

71

71

72

70

71

71

70

71

71

71

71

71

70

Aug.

_

70

72

71

72

71

70

72

71

70

72

72

72

72

73

72

72

72

72

72

72

72

72

70

71

71

71

71

71

71

71

71

Sept.

71

71

70

70

70

69

70

69

67

_

_

--

64

65

65

65

65

68

65

63

63

64
PYRAMID AND WINNEMUCCA LAKES BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN PYRAMID AND WINNEMUCCA LAKES 

Chemical analyses, in parts per million, water year October 1951 to Sep

Date of collection

Instantaneous 

discharge 

(cfs)

Silica 

(810.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(CD

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

LAKE TAHOE (SOUTH END) BIJOU

Oct. 17, 1951 .... 

May 19, 1952 .... 

Sept. 17 .........

12 0.00 8.8 2.4

5.7 

5.6 1.7

40 

52 

54

2.3

2.0 

1.0 

1.5

0.0 7.7 0.06 

LAKE TAHOE (NORTH END) TAHOE VISTA

Oct. 17, 1951 .... 

May 19, 1952..... 

Sept. 17 .........

12 0.00 9.6 2.4

6.0 

6.0 1.8

37 

54 

53

2.3

2.2 

1.2 

1.2

0.0 0.1 0.01 

LAKE TAHOE (WEST SIDE) TAHOE CITY

Oct. 17, 1951 .... 

May 20, 1952 .... 

Sept. 17 .........

12 0.00 8.6 2.7

5.7 

6.0 1.7

45 

55 

55

2.1

1.8 

2.0 

1.7

0.0 0.2 0.02 

TRUCKEE RIVER NEAR TRUCKEE

Oct. 17, 1951 ..... 

May 20, 1952 ..... 

Sept. 16 ..........

42 

2,220 

42

13 0.00 8.1 1.8

6.5 

4.2 1.3

43

44 

58

2.2

2.5 

1.2 

.9

0.0 0.2 0.03 

TRUCKEE RIVER AT FARAD

Oct. 17, 1951 ..... 

May 20, 1952 ..... 

Sept. 16 ..........

415 

5,640 

560

15 0.00 6.0 2.2

4.4 

2.9 1.2

39 

36 

 46

1.5

1.5 

.6

.4

0.1 0.4 0.02 
HOMEY LAKE BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN HONEY LAKE BASIN IN 

Chemical analyses, in parts per million, water year October 1951 to Sept

Date of collection Water 

discharge 

(cfs)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Mag.

nesium

(MB)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO.)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(CD

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

SUSAN RIVER NEAR SUSANVILLE

May 13, 1952......

July 24.. ..........

Sept. 11...........

5.4

14

0.00 5.9 2.2

2.7

1.5

4.8

0.5

.8

104

32

42

100

1.2

2.0

.7

1.8

.6

0.0

.0

0.2

.3

0.08 

a Mean daily discharge (cfs).

EAGLE LAKE BASIN

MISCELLANEOUS ANALYSES OF EAGLE LAKE IN CALIFORNIA 

EAGLE LAKE NEAR SUSANVILLE

J«ly 11, 1952 ..... 

Sept 10 .........

Sept 30 ......... 1

16 

21 

32

a Includes equivalent of 81 parts per mill

11 

28 

8.5

39 

37 

41

174 

144 

182

48 

17 

42

a712 

620 

b727

1.0 

1.6 

1.2

21 

18 

20

0.0 

.0 

.0

0.1 

4.0 

2.6

0.1 

.17 

.01

ton of carbonate (COJ. b Includes equivatea
PART 11. PACIFIC SLOPE BASINS IN CALIFORNIA 

CARMEL RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN CARMEL RIVER BASIN 

Chemical analyses, in parts per million, water year October 1951 to S

Date of collection

Water 

discharge 

(cfs)

Silica 

(810.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO.)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Bo

ron 

(B)

CARMEL RIVER NEAR CARMEL

Feb. 19, 1952......

Sept. 19 ...........

0.00

_.

S3

45

13

21

139

186

68

15

59 

SALINAS RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SALINAS RIVER BASIN 

SALINAS RIVER NEAR SPRECKLES

Oct. 30, 1951 .....

Feb. 18, 1952 .....

May 7 .............

8.1 

11

654

135

--

24

-

74

--

26

31

108 

108

29 

34

52

--

3. a

833 

910

182

an

264

--

112

140

125 

119

25 

32

46

--

.a

--

a.o

-

.6

aResKhtt at ISO* C.
PAJARO RIVER BASIN 

MISCELLANEOUS ANALYSES OF STREAMS IN PAJARO RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1951 to Sep

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO,)

C Worlds 

(Cl)

Fluorids 

(F)

Nitrate 

(NO,)

Boron 

(B)

PAJARO RIVER NEAR CHITTENDEN

Feb. 19, 1952 .....

May 20 ............

Sept. 19 ...........

381

32

4.9

--

21

--

0.00

-- --

68

45

112

--

2.5

a 220

598

--

197

42

138

-

0.1

--

3.8

--

0.34

a Includes equivalent of 6 parts per million of carbonate (CO 3 ).

SOQUEL CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SOQUEL CREEK BASIN IN 

SOQUEL CREEK AT SOQUEL

Feh. 19, 1952 ..... 

Mar. 17 ...........

Sept. 19 ...........

74 

249

6.2

29

24 

18

32 3.5

164 

125

246

100

18 

12

62

0.0 0.4 
SAN LORENZO RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SAN LORENZO RIVER BASIN 

Chemical analyses, in parts per million, water year October 1951 to Se

Date of collection

Water 

discharge 

(cfs)

Silica 

(S10,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(Cl)

Fluorids 

(F)

Nitrate 

(NO,)

Boron 

(B)

SAN LORENZO RIVER AT BIG TREES

Sept. 18 ............

1,010

26

25 7.5

12

2.0

82

128

42

6.5

10

16

19

0.1 0.3 0.07 

GUADALUPE RIVER BASIN 

MISCELLANEOUS ANALYSES OF STREAMS IN GUADALUPE RIVER BASIN 

LOS GATOS CREEK AT LOS GATOS

Sept. 18 ............

33

.6

17 0.00 37 15 10 1.4 164

264

33

5.5

9.0

18

0.2 1.8 0.09 

COYOTE CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN COYOTE CREEK BASIN IN 

COYOTE CREEK NEAR MADRONE

Mar. 17, 1952 ......

Sept. 19 ............

21

54

20 203

125

34

14

10

6.2

0.2 4.4 0.08 
ALAMKDA CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN ALAHEDA CREEK BASIN IN 

Chemical analyses, in parts per million, water year October 19S1 to Sep

Dmte of collection

Water 

discharge 

(cfs)

Silica 

(810.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Ma)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO.)

Chloride 

(Cl)

Fluorlde 

(F)

Nitrate 

(NO,)

Boron 

<B)

ALAMEDA CREEK NEAR NILES

Mar. 18 .

Sept. 18 ............

1,550

IS

3.0

S.S 68

14

3.4

134

400

12

59

80

KERN RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN KERN RIVER BASIN IN C

KERN RIVER NEAR BAKERSFIELD

Nov 15

Sept. 11 ............

260

523

32

OA 97

68

4.8

6.3
TDLAHE LAKE BASIN 

MISCELLANEOUS ANALYSES OF STREAMS IN TULARE LAKE BASIN IN CA

Chemical analyses, in tarts ner n

Date of collection

Water 

discharge 

(eta)

Silica 

<8iO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO.)

Carbonate 

(CO,)

ailHon. water year October 1951

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

toSep

Boron 

(B)

KAWEAH RIVER NEAR THREE RIVERS

Mar 18

Apr. 9 ............

Sept. 11 ...........

33

AQ

138

27

26 8.4 2.6

1.3

56

2.9

1

0

2.5

,08 

KINGS RIVER ABOVE NORTH PORK

Mar. 18, 1952 '.....

Sept. 12 ...........

1,290

498

17 9.4 1.1 3.5 0.7

OQ

35

21

6.7

3

9

1.2

.3

0.0 0.4 0.16 

.02

KINGS RIVER AT PIEDRA

Sept. 12 ...........

184

492

7.2

12 5.0 1.5

Off

58

30 .5

KINGS RIVER AT PEOPLES WEIR (NEAR KINGSBURG)

Feb. 15, 1952 ..... 

liar. 19 ...........

S»pt. 19 ...........

115

765 

2,855

79

5.7 3.2 0.5

9.5

8.6

5.4 

5.7

1.6 1.0

72

63

51 

59

15

74

1.9

7.2

7.8

2.4 

2.0

.5

.8

0.0 0,3 0.06 
SAN JOAQUIN RIVER BASIN 

SAN JOAQUIN RIVER NEAR VERNALIS, CALIF.

LOCATION. At gaging station in El Pescadero Grant, at Durham Ferry highway bridge, 3 miles downstream f

San Joaquin County.

DRAINAGE AREA. 14,010 square miles, approximately. 

RECORDS AVAINABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 392 ppm Aug. 21-31; minimum, 54 ppm June 1-10.

Hardness: Maximum, 162 ppm Aug. 21-31; minimum, 23 ppm June 1-10.

Specific conductance: Maximum daily, 700 micromhos Aug. 22; minimum daily, 73.6 micromhos June 2,4.

Water temperatures: Maximum observed, 76*F Aug. 3; minimum observed, 39*F Jan.10 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 477 ppm Aug. 1-10, 1951; minimum, 54 p

Hardness: Maximum, 193 ppm Aug. 1-10, 1951; minimum, 23 ppm June 1-10, 1952.

Specific conductance: Maximum daily, 851 micromhos Aug. 3, 1951; minimum daily, 73.6 micromhos June 2

Water temperatures: Maximum observed, 78*F July 19, 1951; minimum observed, 39°F Jan. 10, 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

Sacramento, Calif. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951 . . .

Nov. 1-10 ........

Nov. 11-20 .......

Dec. 1-4 .........

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 2-4, 8-10, 1952 

Jan. 11-13........

Jan. 16-20 .......

Jan. 21-31 .......

Feb. 1-10. ........

Feb. 11-20 .......

Feb. 21-29 .......

Mar. 1-10 ........

Mar. 11-20 .......

Mar. 21-31 .......

Mean

discharge 

(cfs)

1,812 

1,861 

1,690 

1,595 

1,659 

2,035

2,245 

3,425 

2,823 

3,586 

4,871 

5,573 

10,790 

12,770

13,150 

10,499 

10,800 

9,644 

12,370 

18.730

Silica 

(SiOJ

29 

24 

26 

27 

27 

25

23 

20 

22 

19 

19 

17 

16 

18

18 

17 

17 

15 

16 

17

Iron 

<Fe)

0.01 

.02 

.01 

.03 

.01 

.02

.08 

.05 

.06 

.08

.29 

.25

.26 

.15 

.06 

.08 

.10 

.06

Calcium 

(Ca)

29 

26 

29 

30 

28 

25

25 

17 

19 

17 

15 

18 

11 

12

13 

12 

11 

12 

13 

12

Magnesium 

(Mg)

13 

11 

14 

14 

13 

12

11 

8.3 

9.1 

7.8 

6.1 

5.1 

6.5 

7.1

6.6 

5.5 

5.0 

5.4 

6.2 

5.8

Sodium 

(Na)

53 

48 

59 

61 

59 

SO

45 

29 

33 

35 

25 

22 

14 

17

17 

17 

15 

18 

16 

14

Potassium 

(K)

5.3 

5.0 

5.3 

5.1 

2.6 

3.0

4.0 

2.4 

3.0 

2.2 

1.6 

2.4 

2.5 

2.6

2.4 

2.0 

1.9 

1.9 

1.9 

1.9

Bicarbonate 

(HCO,)

122 

102 

110 

112 

110 

102

95 

80 

85 

76 

75 

78 

67 

67

74 

66 

59 

62 

68 

fifi

SuUate 

(S04 )

31 

30 

44 

46 

40 

37

34 

14 

27 

26 

19 

17 

12 

14

14 

14 

12 

13 

14 

13

Chloride 

(Cl)

80 

72 

90 

92 

89 

77

73 

41 

47 

48 

27 

25 

11 

16

12 

17 

17 

20 

16 

13

Fluorlde 

(F)

0.3 

.3 

.3 

.2 

.2 

.2

.2 

.3 

.2 

.3 

.3 

.3 

.5 

.4

.4 

.4 

.4 

.4 

.4 

.3

Nitrate 

(NO,)

1.7 

1.8 

1.7 

1.9 

2.0 

1.9

.8 

2.1 

1.9 

2.5 

1.7 

2.5 

1.9 

1.9

1.7 

2.2 

1.6 

1.4 

1.4 

1.4

Boron 

(B)

0.15 

.21

.14

.12 

.08

.06 

.07

Di

(res

Parts 

per 

million

297 

262 

318 

330 

330 

294

a 263 

197 

208 

203 

166 

a 148 

130 

141

134 

126 

115 

125 

129 

115

a Sum of determined constituents.
Apr. 1-10, 1952... 

Apr. 11-20. .......

May 1-10 .........

May 11-20 ........

May 21-31 ........

June 1-10 ........

June 11-20 .......

June 29-30, July Ib

July 11-20 ........

Aug. 1-10 ........

Sept. 11-20 .......

Sept. 21-30 .......

Weighted average

20, 230

30, 820

32,020

10,760

3,214

1,397

1,802

1,633

c9,903

14 

14

12

9.8

9.8

19

27

29

14

.11

.17

.16

.16

.05

.03

0.16

10

5.6

20

33

34

35

47

36

33

11

4.7

2.3

15

4.8

11 

119

0

7.4

63

15

1.6

1.0

4.1

4.2

3.7

1.7

53

«9

51

144

1 1%9

1 Aft

142

53

10

16

44

38

11

10

BO

74

104

88

18

.3

--

.3-

1.0 1 O

1.0

.9

1

O

2.9

1.1

--

-.

96

62

54

65

123

364

qno

348

110

b Not included for computation of weighted averages.

c Represents 98 percent of runoff for water year October 1951 to September 1952.
234 PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN Continued 

SAN JQAQUIN RIVER NEAR VERNALIS, CALIF.--Continued

Temperature (° f) of water, water year October 1951 to September 1952 

Once-daily temperature measurement at approximately 7:30 a. m.7

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

Average

Oct.

68

66

66

66

64

62

64

65

65

65

65

65

64

64

64

65

65

64

64

64

60

60

59

62

59

59

59

60

60

60

60

 63

Nov.

60

59

60

60

60

60

61

60

59

60

62

59

58

58

55

56

54

55

55

55

52

52

56

51

52

52

54

55

55

~

57

Dec.

53

53

52

50

49

47

45

46

45

45

46

46

48

50

50

47

47

50

50

47

48

47

49

50

50

57

47

52

49

~

49

Jan.

_

44

44

44

_

45

44

39

45

46

46

47

47

47

46

47

47

47

48

47

49

50

49

49

49

49

50

47

Feb.

50

50

50

50

48

50

50

49

49

50

50

49

48

49

50

51

50

50

48

49

48

49

49

50

51

52

51

51

52

50

Mar.

52

50

50

50

50

50

50

50

50

50

50

51

50

49

48

48

48

50

49

50

48

48

49

53

56

56

56

58

58

58

59

51

Apr.

58

56

56

58

58

58

59

58

57

58

56

56

57

56

56

56

59

60

60

59

58

58

60

60

60

58

58

58

56

59

58

May

58

58

58

58

58

58

60

58

59

60

60

61

60

60

60

60

61

60

62

62

62

62

62

65

65

65

65

65

63

64

64

61

June

64

64

63

63

66

64

64

64

65

63

63

62

62

63

64

65

66

67

68 ' 68

68

67

68

66

68

67

68

68

65

65

~

65

July

67

70

72

72

72

74

74

72

73

71

71

71

71

71

73

73

73

74

73

74

74

73

74

75

75

74

74

74

74

74

72

73

Aug.

68

74

76

75

69

73

74

74

73

72

72

71

71

71

72

72

72

72

73

73

73

74

70

72

71

72

71

70

70

71

71

72

Sept

73

75

74

74

73

71

71

70

70

64

64

64

60

60

70

70

70

70

70

71

71

72

72

71

72

73

73

72

71

71

70
SAN JOAQUIN RIVER BASIN Continued 

STOCKTON DIVERTING CANAL AT STOCKTON, CALIF.

LOCATION. Just upstream fro* bridge on Sanguinetti Lane, at north edge of Stockton, San Joaquin Count

stream from gaging station. 

RECORDS AVAILABLE.-- Chemical analyses: March 1951 to May 1952.

Water temperatures: March 1951 to May 1952. 

EXTREMES, 1951-52.-- Dissolved solids: Maximum, 167 ppm Apr. 21-23, May 9, 11-14; minimum, 88 ppm Jan

Hardness: Maximum, 128 ppm Nov. 23; minimum, 44 ppm Jan. 13-14, 16-18. , .

Specific conductance: Maximum daily, 303 micromhos May 12; minimum daily 83.6 micromhos Jan. 17. 

Water temperatures: Maximum observed, 75°F Apr. 17; minimum observed 40*F Dec. 21-22.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific condu

Sacramento, Calif. Records of discharge for water year October 1951 to September 1952 are given in 

October, reported no flow.

Chemical analyses, In parts per million, November 1951 to May 

Oat* of collection

Nov. 23, 1951 ....

Dec. 3...........

Dec. 4-5 ........

DM. 6-10........

Dec. 11-20.......

Dec. 21-28.......

Dec. 29-31.......

Jan. 1-10, 1952 .. 

Jan. 11-12, 15, 19- 

20 .............

Jan. 13-14, 16-18 

Jan. 22-26, 31 ... 

Feb. 1-10........

Feb. 11-20.......

Feb. 21-29.......

Mar. 1-10. .......

Mar, 21-31.......

Apr. 1-10........

Apr. 11-20 ......

Apr. 21-23; May 9, 

11-14 ..........

Weighted average

Mean 

discharge 

(els)

188 

33.0 

970 

1,240 

537 

105 

28 

3,730

680

2,126 

3,972 

1,720 

7^6 

369 

718

127 

1,578 

2,501 

505 

.8

.6

a 912

Silica 

(810.)

18 

17

18

21 

18 

19

15 

18 

18 

21 

17

19

Iron 

(Fe)

0.00 

.00

.00 

.00

.10

-

Calcium 

(Ca)

30 

24 

23 

12 

15 

18 

22 

13

14

13 

9.7 

13 

14 

16 

14

14 

13 

13 

14 

19

27

13

Magnesium 

(Mg)

13

9.7 

8.3 

5.5 

8.6 

7.4 

9.0 

4.2

6.1

6.7 

4.8 

7.1 

6.3 

7.3 

7.0

5.8 

5.8 

6.2 

6.8 

8.4

12

6.0

Sodium 

(Na)

9.0 

7.3 

5.9 

4.6 

5.0 

6.3 

7.0 

4.0

5.0

4.6 

3.4 

4.6 

5.0 

5.9 

4.6

5.4 

5.4 

3.0 

4.2 

8.4

12

4.3

Potassium 

(K)

1.8 

2.0 

1.8 

2.4 

1.8 

1.6 

1.6 

1.6

1.4

1.6 

1. 

1. 

1. 

2. 

1.

1.8 

1.9 

1.9 

2.2 

3.0

2.3

1.7

Bicarbonate 

(HCO.)

112 

93

44 

62 

61 

81 

44

65

57 

44 

66 

67 

70 

59

60 

63 

65 

67 

80

110

59

Sulfate 

(SO,)

21 

18 

13 

9.9 

13 

13 

16 

6.8

11

10 

6.3 

12 

11 

13 

11

10 

9.6 

8.4 

9.2 

14

23

8.3

Chloride 

(Cl)

10

9.0 

9.0 

5.0 

7.8 

17 

17 

8.0

5.2

4.0 

3.0 

3.8 

5.0 

11 

9.2

8.0 

4.8 

2.8 

8.8 

12

16

5.1

Fluorlde 

(F)

0.0 

.0

.2

.0 

.0

.2 

.2

Nitrate 

(NO,)

0.4 

1.1 

.6 

1.4 

1.8 

2.0 

2.4 

1.4

1.9

1.2 

1.1

.4 

.4 

.4 

.4

.1 

.4 

.4 

.2 

3.9

2.5

0,«

Boron 

(B)

0.25 

.49

.25

.35 

.90 

.37 

.37

.40 

.05 

.02 

.06 

.08

D

(r

Part

per 

million

16

15

10

10

10

13

14

10

1

10

8

10

10

11

10

10

9

9

10

12

16

10

a Represents 90 percent of runoff tor water year October 1951 to September 1952.
236 PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN Continued 

STOCKTON DIVERTING CANAL AT STOCKTON, CALIF. Continued

Temperature (°F) of water, november 1951 to May 1952 

^"Once-daily temperature measurement at approximately 5:00 p. mj

Day

1

2

3

4

5

6

7

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

Oct. Nov.

-.

_

--

--

--

~

_

_

~

..

_

_.

_

49

47

49

49

._

._

__

--

"

Dec.

-.

--

51

49

48

48

45

45

45

43

44

41

41

43

43

42

41

42

43

42

40

40

42

42

47

51

52

52

50

48

48

45

Jan.

45

44

43

42

42

44

42

42

43

46

45

45

45

46

46

46

46

46

46

_

47

46

48

55

56

_

_

55

46

Feb.

54

54

51

54

49

50

50

50

51

51

52

51

51

52

53

51

49

49

51

48

49

51

51

51

51

49

52

48

59

_

51

Mar.

52

52

52

52

54

52

57

58

59

54

57

54

44

49

54

53

53

49

50

51

51

51

53

54

54

56

55

54

55

55

53

Apr.

59

59

61

62

70

67

63

68

64

65

63

58

61

60

68

73

75

65

61

69

74

71

64

-

..

_

_

May

--

~

70

--

71

71

71

72

_

..

--

_

_

June July Aug. Sept.
SAN JOAQUIN RIVER BASIN Continued 

MOKELUMNE RIVER AT WOODBRIDGE, CALIF.

iLOCATION. At dam of Woodbridge Irrigation District, San Joaquin County, 0.4 mile upstream from bridge 

DRAINAGE AREA. 644 square miles (above gaging station). 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52.--Dissolved solids: Maximum, 61 ppm Mar. 21-31; minimum, 30 ppm June 1-10, 11-20, 2

Hardness: Maximum, 31 ppm Mar. 11-20, 21-29; minimum, 12 ppm June 1-10.

Specific conductance: Maximum daily, 87.5 micromhos Mar. 8; minimum daily, 29.4 micromhos July 9.

Water temperatures: Maximum observed, 70 °F July 30, Aug. 2-3; minimum observed, 40°P Feb. 21. 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 61 ppm Mar. 21-31, 1952; minimum, 30 

Hardness: Maximum, 31 ppm Mar. 11-20, 21-29, 1952; minimum, 12 ppm June 1-10, 1952.

Specific conductance: Maximum daily, 87.5 micromhos Mar. 8, 1952; minimum daily, 29.4 micromhos Jul

Water temperatures: Maximum observed, 83°F July 17, 1951; minimum observed, 40 F Feb. 21, 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific condu

at Sacramento, Calif. Records of discharge for water year 1951-1952 given in WSP 1245.

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951 ...

TVan 91 31

Jan. 1.10, 1952 . .

Mar. 11-20 ......

Mar. 21-31...... .

Mean 

discharge 

(cfs)

303 

339 

315 

457 

416 

617

978 

1,026 

760 

1,342 

1,735 

1,702

1,520 

1,211 

1,251 

1,085 

1,622 

1.894

Silica 

(SiO,)

11 

11 

11 

10 

9.7 

10

11 

10 

10 

11 

11 

12

13 

14 

15 

15 

15 

15

Iron 

(Fe)

0.00 

.00 

.00 

.03 

.13 

.15

.31 

.12 

.20 

.16 

.18 

.12

.17 

.17

.13 

.29 

.21

Calcium 

(Ca)

4.7 

4.8 

5.0 

5.3 

5.0 

5.6

5.1 

5.0 

5.3 

5.6 

5.8 

6,2

6.3 

6.7 

6.6 

6.8 

7.0 

7.4

Magnesium 

(Mg)

2.1 

2.3 

2.1 

1.9 

1.8 

2.1

2.1 

1.4 

1.8 

2.0 

2.1 

2.2

2.2 

2.3 

3.1 

3.2 

3.2 

3.1

Sodium 

(Na)

2.5 

2.5 

2.5 

2.3 

2.3 

2.3

2.3 

2.6 

3.0 

2.9 

3.2 

3.5

3.4 

3.0 

3. 2 

3.3 

3.7 

3.9

Potassium 

(K)

1.6 

2.4 

2.6 

3.0 

3.0 

3.0

2.9 

3.4 

4.2 

1.1 

1.3 

1.1

1.1 

1.2 

1.2 

1.1 

1.2 

1.6

Bicarbonate 

(HCO,)

23 

20 

22 

21 

21 

22

22 

24 

25 

27 

25 

30

31 

32 

32 

32 

32 

36

Sulfate 

(SO.)

8.4 

9.5

7.8 

8.0 

7.7

8.2 

5.1 

7.5 

5.8 

7.7 

6.3

5.4 

6.3 

7.7 

8.2 

9.0 

9.1

Chloride 

(Cl)

1.8 

2.1

2

ft

2.0 

2.1 

2.1

2.4 

2.2 

2.9 

2.4 

2.5 

2.5

2.3 

2.3 

2.1 

2.2 

2.4 

2.4

Fluoride 

(F)

0.1 

.1

.1 

.1 

.2

.2 

.4 

.4 

.1 

.1 

.1

.2 

.2 

.2 

.2 

.2 

.2

Nitrate 

(NO,)

0.3 

.2

.4

.5 

.7

.8 

.3 

.6 

.6

.7 

.5

.4 

.4 

.3 

.4 

.6 

.6

Boron 

(B)

0.08

.11

.11 

.02

.02 

.09

D

(r

Parts 

per 

million

4

4

4

4

4

4

5

3

4

4

5

5

5

5

5

5

6

6
SAN JOAQUIN RIVER BASIN Continued

MOKELUMNE RIVER AT WOODBRIDGE, CALIF. Continued

Chemical analyses, in parts per million, water year October 1951 to September 1

Date of collection

Apr. 1-10, 1952..

Aug. 1-10........

Sept. 1-10.......

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

2,361 

2,412 

3,814 

4,151 

3,567 

4,227

4,484 

3,047 

1,342 

1,186 

858 

192

167 

115 

120 

185 

264 

263

1,424

Silica 

(SiO.)

13 

14 

13 

11 

11 

9.7

8.1 

8.5 

8.4 

8.9 

8.7 

8.7

9U 

8.5 

8.6 

8.5

8.5 

8.7

11

Iron 

(Fe)

0.14 

.14 

.13 

.11 

.11 

.09

.09 

.05 

.06 

.03 

.06 

.11

.12 

.08 

.09 

.04 

.03 

.08

0.12

Calcium 

(Ca)

6.4 

5.8 

5.0 

4.2 

4.0 

3.5

3.2 

3.2 

3.6 

4.2 

3.6 

3.6

3.6 

4.4 

4.4 

4.0 

3.6 

4.0

4.9

Magnesium 

(Mg)

2.6 

2.3 

1.9 

1.3 

1.3 

1.1

1.0 

1.5 

1.5 

1.1 

1.4 

1.7

1.4 

1.3 

1.4 

1.1 

1.4 

1.4

1.8

Sodium 

(Na)

3.2 

3.2 

2.9 

2.5 

2.3 

2.2

1.8 

1.9 

1.6 

1.8 

1.8 

1.9

1.7 

1.6 

1.6 

1.6 

1.6 

1.9

2.6

Potassium 

(K)

1.5 

1.0 

1.3 

1.0 

.9 

.8

.7 

1.4 

.9 

.9 

.7 

.9

.9 

1.4 

1.2 

1.1 

1.1 

1.1

1.3

Bicarbonate 

(HCO,)

31 

30 

28 

21 

21 

19

17 

18 

18 

18 

18 

16

18 

16 

14 

16 

16 

16

24

Sulfate 

(S04)

4.9 

4.1 

3.0 

2.3 

2.5 

1.7

1.6 

2.6 

2.5 

2.4 

2.6 

6.0

4.0 

4.6 

8.3 

4.1 

4.1 

- 4.5

4.4

Chlorids 

(Cl)

2.3 

2.3 

2.2 

1.8 

1.8 

1.5

1.3 

1.2 

1.0 

1.5 

1.2 

1.6

1.2 

1.8 

1.4 

1.3 

1.6 

1.7

1.9

Fluoride 

(F)

0.2 

.2 

.1 

.0 

.0 

.0

.0 

.1 

.1 

.1 

.1 

.1

.1 

.2 

.2 

.2 

.2 

.2

0.1

Nitrate 

(NO,)

0.4 

.4 

.4 

.3 

.4 

.3

.5 

.3 

.4 

.3 

.2 

.6

.7 

.6 

.2 

.4 

.6 

.8

0.4

Boron 

(B)

0.08 

.06

.04 

.03

.02 

.03

Diss

(resid

Parts 

per 

million

52 

51 

45 

37 

37 

32

30 

30 

30 

30 

30 

34

34 

35 

36 

34 

34 

35

43
SAN JOAQUIN RIVER BASIN 239

SAN JOAQUIN RIVER BASIN Continued 

MOKEUJMNE RIVER AT WOODBRIDGE, CALIF. Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 7:30 a. mj

Day

1

2

3

4

5

e

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

Average

Oct.

64

64

63

64

61

61

62

61

63

61

62

62

60

63

61

60

60

60

62

63

60

57

59

60

60

59

59

58

69

60

61

Nov.

..

59

59

59

58

_

59

59

59

57

57

58

57

59

57

56

52

55

57

55

57

58

55

58

52

..

58

57

56

55

57

Dec.

52

53

52

50

51

51

50

49

47

46

47

47

49

51

52

47

50

48

46

55

45

47

49

50

-.

50

55

55

50

49

SO

Jan.

43

45

46

45

45

46

45

45

45

45

45

47

46

46

49

46

46

45

45

46

46

45

45

49

49

50

48

47

49

49

46

Feb.

49

48

49

49

46

48

49

46

46

47

47

47

45

45

49

54

47

45

45

46

40

48

47

50

48

48

46

48

48

--

47

Mar.

46

47

46

47

46

46

46

48

50

48

47

49

49

47

45

48

48

45

49

~

48

49

49

48

50

55

50

51

47

49

48

Apr.

49

49

49

48

51

51

50

49

51

51

50

49

50

48

51

58

54

55

51

51

51

55

51

53

53

53

55

52

51

58

52

May

53

52

51

52

55

55

50

51

53

54

56

55

55

57

_

58

62

58

59

58

59

59

60

59

58

56

58

56

58

58

56

June

58

59

58

58

62

58

59

58

58

58

57

55

59

57

60

56

60

63

59

60

59

62

61

55

56

56

57

58

58

59

--

58

July

62

65

65

68

65

62

61

60

62

59

62

62

63

65

66

64

65

65

65

68

62

64

67

68

68

68

68

69

68

70

67

es

Aug.

68

70

70

67

68

65

62

65

64

65

67

65

69

64

65

63

62

63

65

67

69

68

62

65

67

63

60

62

65

65

65

65

Sept.

65

69

69

69

66

66

66

60

61

61

64

65

65

65

66

65

6$

64

63

SB

66

63

65

67

68

es

65

66

65

--

6B
SAN JOAQUIN RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SAN JOAQUIN RIVER BASIN I

Chemical analyses, In parts per million, water year October 1951 to Sept

Date of collection

Water 

discharge 

(els)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

Di

Parts 

per 

million

SAN JOAQUIN RIVER AT FRIANT

Sept. 10 ......... 1,250

4

0

.3

3

O

3 3

3 7

4.5

2.4

.7

18

1R

13

3.0

3 9

2

0

3

4

.3

.23

SAN JOAQUIN RIVER NEAR MENDOTA

Oct. 10, 1951 ....

Sept. 10 .........

141 

158

226

-- -- --

1.5

56 --

1.3

102 

v\

18

-- 71

3

O

3.0

1.5

.4

-- --

0.4

--

0.03

-

58

SAN JOAQUIN RIVER NEAR DOS PALOS

Oct. 10, 1951 ....

Feb. 15, 1952 ....

Sept. 10 .........

1.7

3,630

3.5

44

4.3

81

23

9A

32

5.6

53

3.5

5.2

0.02 39 

MERCED RIVER AT EXCHEQUER DAM

Oct. 11, 1951 ..... 

Nov. 19 ..........

a 43 

a 53

2.7 

4.0

58 

74

2.5 

4.2

a Mean daily discharge (cfs).
Feb. 13, 1952 .... a 1,190 3.4 47 3.0

Mar. 13.......... a 1,190 3.0 43 2.8

May 15 .......... a7,920 8.2 0.00 4.2 1.3 1.8 0.7 22 2.1 .6 0.0 0.5 0.02 3

Sept. 18 .......... a 1,190 _____________ -- _______1£________________

	MERCED RIVER NEAR STEVINSON

Oct. 10, 1951..... 152 41 126 39

Nov. 20 .......... 193 45 140 37

Feb. 18, 1952 .... 1,290 9.7 58 10

Mar. 17 .......... 2,460 12 49 16

May 16........... 6,800 9.7 0.00 6.4 1.2 2.7 1.3 28 3.3 1.8 0.0 0.4 0.00 4

Sept. 19.......... 298 _____________________________89______IT.

	SAN JOAQUIN RIVER NEAR GRAYSON

Oct. 11, 1951..... 480 120 168 169

Nov. 21 .......... 430 138 170 185

Feb. 18, 1952 .... 5,800 18 66 20

Mar. 14 ......... 3,770 30 81 35

May 16........... 12,000 13 0.00 7.2 2.4 7.6 1.4 35 5.8 6.0 0.0 0.8 0.06 6

Sept. 18 ......... 860 _________________ ____ 140____ 79_________

	TUOLUMNE RIVER AT LA GRANGE

Oct. 11, 1951..... 1,605 2.4 15 2.0

Nov. 19 .......... 1,110 3.0 18 1.5

Feb. 13, 1952 .... 2,500 2.5 36 1.6

Mar. 13.......... 3,470 2.1 34 10

May 15 .......... 10,120 6.9 0.00 2.2 1.1 1.3 0.6 15 1.3 .4 0.0 0.6 0.01 2

Sept. 18 ......... 1,760 _________________ _______14_______.2,

a Mean dally discharge (cfs).
SAN JOAQUIN RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SAN JOAQUIN RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride 

(CD

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

Par

pe

mi

lio

TUOLUMNE RIVER AT HICKMAN

Oct. 10, 1951.....

IP Ah 11 1 Q 19

Sept. 18..........

778

1 715

314

- - -

1.2

10

3

O

--

V

31

aft

40

44

44

-

4.5

22

5.4

54

-- -

0.3

- 

TUOL0MNE RIVER AT TUOLUMNE CITY

Oct. 11, 1951 ..... 

Nov. 21 ..........

Feb. 18, 1952 ...

Sept. 18..........

974 

889

a 2, 230

512

-

"

--

--

8

K

--

-

1 Q

31

13

-

-

70

53

44

73

-

--

5.5

58 

58

25 

15

55

--

~

--

-

0 9

--

--

SAN JOAQUIN RIVER AT MAZE ROAD BRIDGE

Oct. 11, 1951 ....

Feb. 19, 1952 ....

Sept. 18..........

1,250 

1,148 

6,972 

10,000 

1,400

66 

68 

18 

16

105 

105 

60 

63 

110

96 

101 

22 

18 

71

STANISLAUS RIVER AT MOUTH

Oct. 12, 1951 ..... 

Nov. 21 ..........

398 

270

8.6 

13

95 

119

5.2 

9.0

a Mean daily discharge (cfs).
Feb. 19, 1952 . . .

May 16 .........

Sept. 18 .........

2,830

8 *7(10

194

12

4.3

2

0

61

121

2

4

3.0

4.7

0 00

SAN JOAQUIN RIVER NEAR VERNALIS

Oct. 12, 1951 ....

Feb. 19, 1952 ...

Sept. 18 ........

1,840

9,940

1,950

--

--

--

"

--

--

-

"

52

12

--

"

104

60 

65

111

-

"

78

17

62

-- -- --

"

b8

CALAVERAS RIVER NEAR JENNY LIND

Nov. 23, 1951....

Feb. 20, 1952....

Sept. 15 ........

208

118

133

8.0

5.4

82

84

108

6.8

3.4

3.8

MOKELUMNE RIVER NEAR LANCHA PLANA

Nov. 23, 1951 . Mar. 12, 1952 ...

Sept. 16 ........

686

1,370

650

1.0

4.0

2.1

20

31

18

3.2

2.0

1.1

a Mean daily discharge (cfs). 

b Residue at 180°C.
SAN JOAQUIN RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SAN JOAQUIN RIVER BASIN IN CA

Chemical analyses, In parts per million, water year October 1951 to September 

Date of collection

Water 

discharge 

(cfs)

Silica 

(Si08)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

D

Parts 

per 

million

MOKELUMNE RIVER AT WOODBRIDGE

Nov. 23, 1951 ....

Feb. 20, 1952 ....

May 21 ..........

Sept. 15 .........

688

1,440

4,400

48

12 0.00 3.6

Oct. 18, 1951 .....

Feb. 19, 1952 ....

Mar. 24 .........

Sept. 18 .........

1.2

4.0

3.1

1.5 0.8

15

32

32

19

27

2.5

2.5

.7

1.7

SAN JOAQUIN RIVER AT ANTIOCH 

128

19

19

107

70

65

92

195

25

28

76

0.05
SACRAMENTO RIVER BASIN 

SACRAMENTO RIVER AT DELTA, CALIF.

LOCATION.--Temperature recorder at gaging station 0.2 mile downstream from Dog Creek, 0.6 mil

miles south of La Moine. 

DRAINAGE AREA.--427 square miles. 

RECORDS AVAILABLE. June 1951 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 74°F July 29; minimum, 38°F Jan. 10-11, Mar

EXTREMES, June 1951-52.--Water temperatures: Maximum, 75°F Aug. 20, 1951; minimum, 38°F Jan. 

REMARKS. Records of discharge for water year 1951-52 given in WSP 1245.

Temperature (°F) of water, water year October 1951 to Septemb

Day

9

10 _ ---..-...»-.....,

19

on

22

94

25

9O

31 

Average .

October

max

58 

57 

58 

57 

56

56 

56 

56 

56 

54

55 

56 

55 

55 

56

54 

52 

51 

54 

53

52. 

50 

50 

50 

50

49 

48 

50 

50 

50 

50

53

mln

57 

57 

56 

54 

54

53 

54 

54 

54 

54

54 

54 

53 

52 

54

52 

51 

50 

51 

52

50 

50 

50 

50 

49

48 

47 

48 

48 

48 

48

52

November

max

49 

49 

48 

50 

50

48 

48 

48 

48 

48

48 

48 

47 

47 

47

45 

44 

43 

45 

45

45 

45 

44 

43 

42

43 

45 

46 

47 

47

46

mln

48 

48 

47 

48 

48

48 

48 

48 

48 

48

47 

47 

47 

47 

45 

44 

43 

43 

43 

45

45 

44 

43 

42 

42

42 

43 

45 

46

47

46

December

max

47 

47 

46 

45 

46

46 

45 

44 

43 

42

43 

43 

43 

43 

42

42 

42 

42 

42 

42

41 

41 

42 

43 

43

43 

44 

45 

45 

45 

45

44

min

47 

46 

45 

45 

46

45 

44 

43 

42 

42

42 

43 

43 

42 

42

42 

42 

42 

42 

41

41 

41 

41 

42 

43

43 

43 

44 

45 

45 

43

43

January

max

43 

42 

41 

41 

41

42 

40 

40 

40 

40

39 

40 

40 

40 

41

41 

41 

41 

41 

41

42 

42 

42 

42 

43 

44 

44 

44 

45 

45 

45

42

min

42 

41 

41 

41 

41

39 

40 

40 

40 

38

38 

39 

40 

40 

40 

41 

41 

41 

41 

41

41 

42 

42 

42 

42

43 

44 

44 

44 

45 

45

41

February

max

45 

44 

46 

46 

46 

45 

45 

45 

45 

45

45 

45 

45 

45 

45

45 

45 

43 

43 

43

43 

42 

43 

43 

43 

44 

44 

44 

44

44

min

44 

44 

44 

46 

45

45 

45 

45 

45 

45

45 

45 

44 

44 

45

45 

43 

43 

43 

43

42 

42 

42 

43 

43

43 

43 

44 

44

44

March

max

44 

43 

42 

43 

43

42 

43 

43 

44 

44

43 

42 

42

41 

39

43 

43 

43 

43 

43

43 

43 

44 

46 

46

45 

45 

46 

46 

45 

46

43

min

43 

42 

42 

42 

42

39 

39 

42 

43 

43

41 

41 

41 

38 

38

39 

43 

42 

42 

41

41 

42 

43 

44 

44

43 

43 

44 

44 

44 

44

42

April

max

46 

47 

48 

48 

48

48 

46 

46 

47 

48

49 

49 

48 

47 

48

49 

50 

50 

50 

49

50 

50 

50 

50 

49

51 

51 

51 

49 

49

49

min

44 

45 

45 

45 

46

46 

46 

45 

46 

46

46 

48 

48 

46 

45

47 

47 

47 

46 

45

46

47 

47 

47 

47 

48 

47 

48 

47 

48

46

Ma

max

50 

50 

50 

50 

50

50 

50 

50 

51 

52

52 

51 

51 

51 

51

52 

52 

52 

52 

51

51 

52 

53 

54 

54

54 

55 

55 

54 

55 

55

52
SACRAMENTO RIVER BASIN Continued

PIT RIVER NEAR MONTGOMERY CREEK, CALIF.

LOCATION. Temperature recorder at gaging station 1 mile upstream from Cow Canyon Creek and 

Shasta County.

DRAINAGE AREA. 5,170 square miles, approximately, excluding Goose Lake Basin. 

RECORDS AVAILABLE. June 1951 to September 1952.

EXTREMES, 1951-52.--Water temperatures: Maximum, 78°F Aug. 17; minimum. 41'F, Jan. 6-7, 11-

EXTREMES, June 1951 to September 1952.--Water tsmperatures: Maximum, 80°F July 22, 1951; min

REMARKS. Records of discharge for water year 1951-52 given in WSP 1245.

Temperature (°F) of water, water year October 1951 to Septem

Day

4 .... - .

10 -- 

U - 

in

IS . -

16 . 

18

24

no

28

31 

Average 

October

max

61 

61 

61 

60 

59

59 

63 

58 

58 

58

58 

58 

58 

58 

58

57 

57 

56 

57 

57

56 

55 

55 

55 

55

55 

54 

55 

54 

53 

53

57

min

61 

60 

60 

58 

58

58 

57 

57 

57 

57

58 

56 

56 

56 

57

56

55 

55 

55 

55

54 

54 

54 

54 

53

53 

52 

53 

52 

52 

52

56

November

max

52 

52 

52 

56 

52

52 

52 

52 

52 

52

51 

51 

51 

51 

51

50 

50 

48 

49 

49

48 

48 

47 

47 

47

47 

47 

47 

48 

48

50

min

51 

49 

50 

51 

50

50 

50 

48 

47 

51

50 

50 

50 

51 

49

48 

47 

47 

48 

48

44 

47 

46 

46 

46 

47 

47 

47 

47 

48

48

December

max

48 

48 

48 

47

47

47 

47 

46 

45 

45

45 

45 

45 

44 

44 

44 

44 

44 

44 

44

44

45 

45

45 

45

45 

45 

46 

46 

45 

44

45

mln

48 

47 

47

47 

47

47 

46 

45 

44 

44

45 

45 

44 

44 

44

44 

44 

44 

44 

44

44 

44

45 

44

45 

44 

45 

45 

45 

44 

43

45

January

max

43 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

43 

43 

42

43 

43 

43 

43 

43

43 

43 

43 

44 

44

45 

46 

46 

46 

46 

46

43

nin

42 

42 

42 

42 

42

41 

41 

42 

42 

42

41 

41 

42 

42 

42

42 

43 

42 

43 

42

42 

42 

43 

43 

44

44

45 

45 

46 

46 

46

43

February

rnojr

46 

46 

47 

47 

46

46 

45 

44 

44 

44

44 

44 

44

45 

45

45 

45 

45 

45 

45

45 

45 

45 

45 

46

46

47 

47 

47

45

rain

44 

44

46 

46 

46

45 

44 

44 

44 

44

44

44 

44 

44

45 

45 

45 

45 

45 

44

44 

44 

44 

44

45

45 

46 

46 

48

45

March

max

47 

47 

47 

47 

48

48 

48 

48 

49 

49

49 

49 

49 

49 

48

49 

49 

48 

48 

48

48 

48 

48 

49 

49

49 

51 

51 

51 

51 

52

49

mln

47 

46 

47 

47 

47

46 

47 

47 

47 

48

48

48 

49 

47 

47

48 

48 

47 

47

47

47 

47 

47 

48 

48

47 

48 

50 

50 

49 

50

48

April

max

52 

52 

54 

55 

55

57 

57 

58 

56 

55

55 

55 

55 

56 

56

55 

55 

56 

56 

56

57 

56 

56 

56

57

58 

58 

58 

58

57

56

min

50 

51 

51 

52 

53

55 

56 

56 

54

54

53 

54 

55 

54 

54

53 

53 

53 

54 

54

54 

54 

53 

54 

55

56 

55 

57 

55 

56

54

M

ni8z

56 

56 

56 

56 

56

56 

56 

55 

56 

57

57 

57 

58 

58 

59

59 

59 

60 

60 

60

60 

60 

61 

61 

61

62 

63 

63 

63 

63 

63

59
SACRAMENTO RIVER BASIN Continued 

SQUAW CREEK ABOVE SHASTA LAKE, CALIF.

LOCATION. Temperature recorder at gaging station, 0.5 mile upstream from Salt Creek, about 2 

west of town of Montgomery Creek, Shasta County. 

DRAINAGE AREA. 65.3 square miles.

RECORDS AVAILABLE. Water temperatures: June 1951 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 75°F July 29-30; minimum, 42°F Jan. 10-14, 

EXTREMES, June 1951 to September 1952. Water temperatures: Maximum, 75°F July 29-30,1952; m

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 124

Temperature (°F) of water, water year October 1951 to Septembe

Day

10 -- 

IS . 

16 - - 

1 ft

Ofi

31 

Average 

October

max

61

61 

60 

60 

58 

57 

57 

57 

57 

57

57 

57 

57 

57 

57

57 

56 

55 

55 

55

55 

53 

53 

53 

53 

52 

52 

51 

51 

51 

51

56

min

61 

60 

59 

58 

56 

57 

57 

57 

57 

57

57 

56 

56 

56 

56 

56 

55 

55 

55 

55

53 

53 

53 

53 

52 

51 

51 

51 

51 

51 

51

55

November

max

51 

51 

51 

51 

51 

51 

51 

51 

51 

51

51 

51 

51 

50 

50

49 

48 

47 

47 

47

47 

47 

47 

46 

46 

47 

48 

51 

52 

53

50

min

51 

51 

51 

51 

51 

51 

51 

51 

51 

51

50 

50 

50 

50 

49

48 

47 

47 

47 

47

47 

46 

46 

46 

46 

46 

47 

49 

51 

52

49

December

max

53 

53 

52 

52 

52 

51 

50 

48 

48 

47

48 

48 

48 

47 

46

46 

46 

46 

46 

46

46 

47 

47 

48 

48 

50 

51 

51 

51 

51 

49

49

min

53 

52 

51 

51 

51 

50 

48 

48 

46 

46

47 

48 

47 

46 

46

46 

46 

46 

46 

46

45 

46 

47 

47 

48 

48 

50 

51 

51 

49 

48

48

January

max

48 

47 

47 

46 

46 

46 

43 

43 

43 

43

42 

42 

42 

43 

43

44 

44 

44 

44 

45

45 

45 

45 

45 

46 

47 

47 

47 

47 

47 

47

45

min

47 

47 

46 

46 

46 

43 

43 

43 

43 

42

42 

42 

42 

42 

43

43 

44 

44 

44 

44

45 

45 

45 

45 

45 

46 

47 

47 

47 

47 

47

45

February

max

47 

48 

48 

48 

48 

48 

48 

48 

48 

48

48 

48 

48 

47 

47

47 

47 

47 

46 

46

46 

46 

46 

47 

47 

47 

47 

48 

48

47

min

47 

47 

48 

48 

46 

48 

48 

48 

48 

48

48 

48 

47 

47 

47

47 

47 

46 

45 

46

46 

46 

46 

46 

46 

47 

47 

47 

47

47

March

max

48 

47 

46 

46 

46 

46 

46 

47 

48 

48

48 

46 

45 

45 

44

47 

47 

47 

47 

47

47 

47 

48 

50 

52 

52 

52 

52 

52 

51 

51

48

min

47 

46 

46 

46 

46 

43 

43 

46 

46 

48

46 

45 

45 

42 

41

44 

47 

46 

46 

46

46 

46 

47 

48 

48 

49 

49 

50 

50 

50 

49

46

April

max

50 

51 

52 

53 

53 

53 

52 

52 

51 

52

53 

53 

53 

52 

52

53 

55 

55 

55 

53

54 

55

--

min

48 

50 

50 

50 

51 

51 

52 

50 

49 

50

50 

53 

52 

50 

49

50 

52 

52 

53 

50

50 

52

--

Ma

max 
SACRAMENTO RIVER BASIN Continued 

McCLOUD RIVER ABOVE SHASTA LAKE, CALIF.

LOCATION.--Temperature recorder at gaging station just upstream from Shasta Lake, 0.3 mile dow

east of La Moine, Shasta County. 

DRAINAGE AREA. 606 square miles. 

RECORDS AVAILABLE. June 1951 to September 1952.

EXTREMES, 1951-52.-Water temperatures: Maximum, 54'F July 18-19, 30-31; minimum, 40 F Jan 1

EXTREMES, June 1951 to September 1952. Water temperatures: 54°F July 11, 18, 19, 30, 31, 195

Jan 10-12, 14, Mar. 15, 1952. 

REMARKS. Records of discharge for water year 1951-52 given in WSP 1245.

Temperature (°F) of water, water year October 1951 to September 19

Day

Q

9

12

on

21

99

23

24

25

OR

27

OQ

QA

31

Average 

October

max

50 

49 

49 

49 

48

48 

48 

48 

48 

48

49 

49 

48 

47 

48 

48 

47 

47 

47 

47 

47 

46 

46 

46 

46

46 

46 

46 

46 

46 

46

47

min

48 

49 

49 

48 

48

48 

48 

48 

48 

48

48 

48 

47 

47 

47 

47 

47 

47 

47 

47

46 

46 

46 

46 

46

46 

46 

46 

46 

46 

45

47

November

max

45 

45 

45 

45 

45

45 

45 

45 

45 

45

45 

45 

45 

45 

45 

44 

44 

44 

44 

44

44 

44 

44 

43 

43

43 

44 

45 

45 

46

45

min

45 

45 

45 

45 

45

45 

45 

45 

45 

45

45 

45 

44 

44 

44 

44 

44 

44 

44 

44 

44 

43 

43 

43 

43

43 

43 

44 

45 

45

44

December

max

45 

46 

45 

44 

44 

44 

43 

42 

42 

41

42 

42 

42 

42 

42

42 

42 

42 

42 

42 

41 

43 

43 

43 

43

44 

44 

44 

44 

44 

43

43

min

45 

45 

44 

44 

44

43 

42 

42 

41 

41

41 

42 

42 

42 

42 

42 

42 

42 

42 

41 

41 

41 

43 

43 

43

43 

44 

44 

44 

43 

42

43

January

max

42 

41 

41 

42 

42

42 

41 

41 

41 

41

40 

41 

41 

41 

41 

41 

42 

42 

41 

42

42 

42 

43 

43 

43

43 

43 

44 

44 

44 

44

42

min

41 

41 

41 

41 

42

41 

41 

41 

41 

40

40 

40 

41 

40 

41 

41 

41 

41 

41 

41

42 

42 

42 

41 

42

42 

43 

43 

43 

44 

44

41

February

max

44 

44 

44 

44 

44

44 

43 

43 

43 

43

43 

43 

43 

44 

44 

44 

44 

44 

43 

43

43 

42 

44 

44 

44

44 

44 

44 

44

44

min

44 

44 

44 

44 

44

43 

43 

43 

43 

43

43 

43 

43 

43 

44 

44 

44 

43 

42 

42

42 

42 

42 

44 

43

43 

44 

44 

44

43

March

max

44 

43 

42 

43 

43

43 

43 

43 

44 

44

44 

43 

43 

43 

42 

45 

44 

44 

44 

44

43 

43 

45 

46 

46

45 

45 

46 

46 

45 

45

44

min

43 

42 

42 

42 

43

41 

41 

43 

43 

44

43 

43 

43 

41 

40 

42 

44 

44 

44 

43 

43 

43 

43 

45 

44

44 

44 

44 

44 

44 

44

43

April

max

45 

46 

46 

46 

46

46 

45 

45 

45 

45

45 

46 

46 

45 

45 

46 

46 

47 

46 

46

46 

47 

48 

48 

47

48 

48 

48 

48 

47

46

min

44 

44 

44 

44 

45

45 

45 

44 

44 

44

44 

45 

45 

44 

44 

44 

45 

45 

45 

44 

44 

46 

46 

46 

47

47 

47 

48 

46 

46

45

Ma

max

46 

46 

46 

47 

47

47 

47 

46 

47 

48

48 

48 

48 

48 

48 

49 

49 

50 

50 

49

49 

49 

50 

50 

50

50 

51 

51 

51 

50 

50

49
SACRAMENTO RIVER BASIN Continued 

SACRAMENTO RIVER AT KNIGHTS LANDING, CALIF.

LOCATION. At gaging station, Yolo-Sutter County line, just upstream from Southern Pacific Railroad brid

Feather River. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52.--Dissolved solids: Maximum, 226 ppm Sept. 1-10; minimum, 91 ppm Apr. 11-20.

Hardness: Maximum, 114 ppm Sept. 1-10; minimum, 44 ppm Jan. 26-27.

Specific conductance: Maximum daily, 447 micromhos Sept. 9; minimum daily, 99.1 micromhos Mar. 17.

Water temperatures: Maximum observed, 78°F July 23; minimum observed, 42 F Jan. 3, 9-11. 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum, 226 ppm Sept. 1-10, 1952; minimum, 91 

Hardness: Maximum, 114 ppm Sept. 1-10, 1952; minimum 44 ppm Jan. 26-27, 1952.

Specific conductance: Maximum daily, 447 micromhos Sept. 9, 1952; minimum daily, 99.1 micromhos Mar. 

Water temperatures: Maximum observed, 78°F July 23, 1952; minimum observed, 42°F Jan. 3, 9-11, 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

Sacramento, Calif. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951...

Nov. 1-10........

Nov. 21-30.......

Dec. 1-10........

Dec. 11-20.......

Jan. 1-10, 1952... 

Jan. 11-20 .......

Jan. 21-25, 28-31. 

Jan. 26-27 a

Feb. 1-10........

Feb. 11-20.......

Feb. 21-29.......

Mar. 1-10. .......

Mar. 11-20.......

Mar. 21-31. ......

Apr. 1-10........

Apr. 11-20.......

Apr. 21-30.......

Mean 

discharge 

(cfs)

5,936 

9,504 

6,589 

6,108 

6,138 

8,697

18, 040 

9,483 

13, 010 

21,370 

22, 550 

21,880 

22,800

22,410 

22, 550 

21,860 

20, 710 

21, 530 

21,250

19, 600 

20, 470 

19. 780

Silica 

(SiO.)

27 

28 

28 

29 

29 

26

21 

26 

26 

23 

20 

20

21 

21 

22 

22 

21 

22

22 

22 

22

Iron 

(Fe)

0.03 

.02 

.04 

.03 

.04 

.06

.15 

.12 

.09 

.06 

.19 

.12

.27 

.17 

.18 

.22 

.26 

.11

.19 

.15 

.15

Calcium 

(Ca)

13 

14 

13 

14 

14 

13

10 

16 

16 

12 

11 

14

12 

12 

12 

13 

12 

14

14 

11 

11

Magnesium 

(Mg)

7.5 

7.7 

7.4 

7.9 

7.7 

7.5

5.5 

9.4 

9.1 

6.0 

6.9 

7.7

6.8 

6.2 

6.2 

6.6 

6.9 

7.4

6.6 

5.6 

5.6

Sodium 

(Na)

10 

11 

12 

13 

12 

15

7.8 

17 

IS 

8.7 

8.8 

10

7.4 

7.0 

7.0 

7.1 

7.1 

7.6

6.7 

6.7 

7.0

Potassium 

(K)

4.2 

4.3 

4.3 

4.3 

4.2 

2.4

1.8 

2.6 

2.2 

1.9 

1.5 

1.5

1.3 

1.2 

1.2 

1.3 

1.1 

1.0

1.0 

1.0 

1.0

Bicarbonate 

(HCO.)

87 

91 

87 

91 

89 

81

57 

95 

93 

69 

64 

74 

50

71 

71 

72 

74 

73 

78

76 

67 

65

SuUate 

(SO,)

9.4 

10 

12 

13 

12 

18

14 

24 

18 

11 

11 

14 

8.4

11 

8.5 

8.8 

8.9 

9.3 

11

10 

8.2 

8.5

Chloride 

(Cl)

6.6 

7.1 

7.5 

8.8 

8.8 

12

6.6 

14 

12 

6.5 

6.1 

7.3

5.0 

3.8 

4.2 

4.1 

4.1 

4.0

3.5 

3.0 

3.1

Fluoride 

(F)

0.1 

.1 

.1 

.1 

.1 

.3

.3 

.3 

.3 

.3 

.4 

.4

.3 

.3 

.3 

.3 

.3 

.2

.2 

.2 

.2

Nitrate 

(NO,)

0.5 

.4 

.5 

.4 

.4 

.8

.8 

.7 

.5 

.8 

.7 

.8

.7 

. 5 

.5 

.7 

.6 

.6

.2 

.3 

.3

Boron 

(B)

0.13 

.13

.31 

.07

.07 

.08

.07

Dis

(resi

Parts 

per 

million

117 

122 

119 

126 

123 

138

111 

157 

149 

111 

117 

122

105 

97 

98 

103 

102 

109

102 

91 

92

a Not included for computation of weighted averages.
SACRAMENTO RIVER BASIN Continued

SACRAMENTO RIVER AT KNIGHTS LANDING, CALIF. Continu

Chemical analyses, in parts per million, water year October IbSl to September 

Date of collection

May 1-10, 1952.. 

May 11-20.......

May 21-31. ......

June 1-10 .......

June 11-20 ......

June 21-30......

July 1-10. .......

July 11-20.......

July 21-31. ......

Aug. 1-10.......

Aug. 11-20......

Sept. 1-10.......

Sept. 11-20......

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

19,080 

17, 190 

14, 020

10,620 

9,790 

8,790 

9,070 

7,430 

6,718

7,420 

7,850 

8,095 

8,240 

9,534 

8,439

b 13, 470

Silica 

(S10J

21

20 

20

23 

21 

24 

24 

24 

23

23 

22 

21 

19 

22 

24

22

Iron 

(Fe)

0.05 

.04 

.02

.02 

.03 

.04 

.03 

.04 

.04

.07 

.08 

.11 

.09 

.15 

.13

0.12

Calcium 

(Ca)

11 

11 

12

14 

16 

15 

14 

15 

15

15 

16 

17 

21 

16 

16

13

Magnesium 

(Mg)

7.3 

7.0 

7.8

10 

12 

11 

9.6 

10 

11

10 

12 

13 

15 

11 

11

7.8

Sodium 

(Na)

8.5 

8.5 

7.0

12 

20 

25 

21 

22 

22

22

25 

29 

39 

22 

19

12

Potassium 

(K)

1.3 

1.3 

1.3

1.0 

1.5 

1.5 

1.5 

1.4 

1.4

1.6 

1.5 

1.4 

1.5 

1.5 

1.5

1.6

Bicarbonate 

(HCO,)

78 

70 

72

90 

106 

108 

101 

103 

108

108 

124 

132 

157 

118 

111

82

Sulfate 

(SO,)

9.6 

11 

11

16 

26 

26 

21 

22 

23

22

25 

28 

36 

20 

18

14

Chloride 

(Cl)

7.0 

6.6 

5.2

7.6 

13 

16 

13 

13 

14

14 

16 

17 

22 

13 

11

7.5

Fluoride 

(F)

0.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

.1 

.1 

.3 

.3 

.3 

.3

0.2

Nitrate 

(NO,)

0.3 

.6 

.8

.9 

.9 

.9 

.8 

.8 

.7

.7 

.7 

.6 

.8 

.5 

.6

0.6

Boron 

(B)

0.04 

.08

.20 

.16

Dis

(res

Parts 

per 

million

96 

100 

103

118 

156 

171 

151 

158 

160

159 

175 

186 

226 

159 

152

120

b Represents 99 percent of runoff for water year October 1951 to September 1952.
SACRAMENTO RIVER BASIN 251

SACRAMENTO RIVER BASIN Continued 

SACRAMENTO RIVER AT KNIGHTS LANDING, CALIF.--Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at 10:00 a. mj

Dty

1

2

8

9

10

11

12

13

14

It

it

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

64

64

64

60

62

61

61

64

62

62

63

61

60

62

61

60

58

60

60

58

58

58

57

58

58

56

55

55

56

56

57

60

Nov.

56

56

56

57

57

58

58

58

56

56

56

55

53

55

52

51

52

52

52

50

51

50

48

49

48

49

50

S>1

52

51

--

53

Dec.

51

53

51

50

49

48

46

46

45

45

45

45

46

..

46

46

45

45

46

45

44

45

45

46

46

46

48

50

 _

48

47

Jan.

46

45

42

44

44

44

44

44

42

42

42

43

44

44

44

44

43

44

43

44

44

45

45

45

46

45

46

47

48

48

48

44

Feb.

48

49

49

48

48

48

49

48

49

48

48

48

48

48

48

49

49

48

47

46

46

46

46

47

47

_.

50

51

_

~

48

Mar.

..

49

49

49

48

47

_.

46

45

49

49

49

48

47

47

46

45

46

47

46

48

48

48

50

52

53

56

57

57

56

56

49

Apr.

55

55

55

55

5ft

57

57

56

56

55

55

55

54

54

53

53

54

56

56

55

55

55

55

56

56

56

55

54

55

55

55

May

55

55

54

55

54

55

56

57

56

57

57

58

59

59

60

61

62

66

63

61

62

64

64

64

65

66

66

65

_

66

60

June

65

65

66

68

67

66

67

66

65

65

66

67

66

66

66

64

66

65

66

66

66

66

66

65

65

66

65

65

65

64

66

July

65

66

67

69

70

71

71

72

70

71

68

70

69

70

70

71

72

72

71

71

72

70

78

71

71

71

71

71

72

71

72

71

Aug.

73

72

72

70

71

70

72

69

69

69

68

67

68

68

69

69

69

69

69

70

70

69

70

68

67

68

68

68

68

68

68

 9

Sept.

68

69

70

69

69

69

69

68

68

67

04

62

63

64

64

65

66

65

64

67

67

68

68

69

69

70

69

69

69

69

«

67
SACRAMENTO RIVER BASIN Continued 

FEATHER RIVER AT NICOLAUS, CALIF.

LOCATION. At gaging station at Nicolaus, Sutter County, 0.4 mile downstream from highway bridge, and 1.6 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1952.

Water temperatures : March 1951 to September 1952 . 

EXTREMES, 1951-52.-- Dissolved solids: Maximum, 88 ppm Aug. 21-31; minimum, 45 ppm June 1-3, 8, 10.

Hardness: Maximum, 58 ppm Oct. 1-10, 11-20, Nov. 21-30; minimum, 22 ppm June 1-3, 8, 10.

Specific conductance: Maximum daily, 143 micromhos Oct. 6; minimum daily 50.0 micromhos May 28. 

: Maximum observed, 76°F July 29; minimum observed, 39 F Jan. 3, 5.

Maximum, 111 ppm Aug. 1-10, 1951; minimum, 45 pp

Maximum, 74 ppm Aug. 11-20, 1951; minimum, 22 ppm June 1-3, 8, 10, 1952.

Water temperatures: 

EXTREMES, March 1951-September 1952. Dissolved solids:

Hardness: Maximum, 74 ppm Aug. 11-20, 1951; minimum, «.- ^p.u vu««, *-»,, , * , *» «..

Specific conductance: Maximum daily, 189 micromhos Aug. 17, 1951; minimum daily, 50.0 micromhos May 28

Water temperatures: Maximum observed, 79°F July 18-19, 1951; minimum observed, 39°F Jan. 3, 5, 1952.

REMARKS.--Values reported for dissolved eolids are residues on evaporation. Records of specific conducta

Sacramento, Calif. Records of discharge for water year October 1951 to September 1952 given in WSP 12

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951..

Oct. 21-31. ......

Nov. 1-10 .......

Nov. 11-20 ......

Nov. 21-30 ......

Dec. 11-20......

Tan. 1-10, 1952..

Jan. 21-31.......

Feb. 1-10........

Feb. 11-20 ......

Feb. 21-29 ......

Mar. 1-10.......

Mar. 11-20......

Mar. 21-31......

Apr. 11-20 ......

Apr. 21-30......

Mean 

discharge 

(cfs)

2,273 

2,398 

2,932 

2,721 

4,309 

5,814

21, 300 

6,951 

20, 770 

14, 470 

29,900 

28, 690

41, 510 

22, 990 

19, 870 

20, 010 

22, 660 

19, 860

39, 800 

40, 920 

47. 190

Silica 

(SIO,)

16 

15 

16 

16 

12 

14

13 

16 

14 

15 

13 

15

13 

14 

16 

15 

15 

16

17 

17 

15

Iron 

(Fe)

0.00 

.00 

.00 

.04 

.05 

.10

.09 

.10 

.10 

.10 

.11 

.06

.04 

.05 

.09 

.12 

.15 

.06

.06 

.13 

.16

Calcium 

(Ca)

13 

13 

12 

12 

10 

12

8.8 

8.8 

10 

8.2 

7.9 

8.4

7.5 

8.4 

8.3 

9.0 

8.7 

8.6

7.8 

6.8 

6.4

Magnesium 

(Mg)

6.2 

6.1 

5.9 

5.6 

4.5 

6.7

4.2 

4.2 

4.9 

3.6 

3.5 

4.1

3.7 

3.7 

4.5 

4.8 

4.9 

4.7

4.0 

3.9 

3.3

Sodium 

(Na)

5.4 

5.2 

5.2 

4.7 

4.0 

4.4

3.0 

3.6 

3.1 

3.2 

3.3 

3.5

2.8 

3.3 

3.4 

3.6 

3.7 

4.2

4.2 

3.8 

2.8

Potassium 

(K)

2.6 

2.4 

2.9

l!l 

1.9

1.8 

1.8 

1.8 

1.9 

1.1 

1.0

.6 

.8 

.9 

.9 

.7

.8 

.8 

.8

Bicarbonate 

(HCO,)

78 

78 

72 

71 

58 

66

46 

58 

52 

46

43 

47

45 

45 

48 

50 

50 

52

49 

42 

37

Sulfate 

(SO,)

5.4 

5.4 

6.4 

5.1 

6.2 

8.0

7.2 

6.9 

6.0 

5.5 

5.4 

5.3

4.4 

4.4 

5.3 

5.6 

5.8 

6.4

4.7 

4.0 

3 0

Chloride 

(Cl)

2.5 

2.2 

2.8 

2.2 

2.5 

3.4

4.9 

2.5 

2.6 

2.1 

2.3 

2.1

1.7 

2.1 

1.8 

2.0 

1.9 

1.9

1.4 

1.4 

1 0

Fluoride 

(F)

0.1 

.1 

.1 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.2 

.1

.1 

.1 

.2 

.2 

.2 

.1

.1 

.1 

1

Nitrate 

(NO,)

0.7 

.8 

.7 

.3 

.3 

.5

.7 

.4 

.3 

.4 

.8 

.6

.3 

.2 

.4 

.4 

.4 

.2

.2 

.3

3

Boron 

(B)

0.11 

.17

.14 

.02

.02 

.03

.06

Disso

(resid

Parts 

per 

million

85 

84 

83 

85 

76 

86

76 

79 

73 

71 

66 

70

58 

64 

63 

66 

68 

70

67 

62

5ft
May 1-10, 1952 . . 

May 11-20.......

May 21-31

Tune 1-3, 8, 10 .. 

June 11-20.......

July 1-10........

July 11-20.......

July 21-31.......

Aug. 1-10 .......

Aug. 21-31 ......

Sept. 11-20......

Sept. 21-30......

Weighted average

41, 630

26, 780 

16, 020

2,343

1,657

1,323

1,868

2,451

b 16, 670

13 

13

12 

13

15

16

17

16

14

.03

.10

no

.06

.02

0.08

6.4

5.5

6.2 8 4

11

12

12

7.6

3.5

2.0

5.9

5.5

3.8

2.4 2 0

2.3

2.6

2.7

5.1

5.0

4.7

3.2

.9

.3

1.5

1.5

1.0

38 

36

31

30

«7

68

44

2.7

3 

a

2.4 2 4 3 n 3 7

5.3 4 0

4.4

4.5

1.4 

1 ft

.6

2

n

3.1 3 9

3.1

2.8

1.8

.1

.1

.1

.10

.10

.2

0.1

.9

.9

.9

.5

0.5

.10

a 

a Sum of determined constituents.

b Represents 98 percent of runoff for water year October 1951 to September 1952.
254 PACIFIC SLOPE BASINS IN CALIFORNIA

SACRAMENTO RIVER BASIN Continued 

FEATHER RIVER AT NICOLAUS, CALIF.--Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at 7 a.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

65

64

63

63

61

61

62

63

63

62

61

61

61

61

61

60

59

60

60

60

57

56

56

58

54

55

54

54

55

55

55

59

Nov.

55

54

55

55

55

55

55

54

54

53

51

52

50

52

50

49

48

50

50

49

48

48

45

48

50

49

48

51

Dec.

49

49

49

48

46

45

43

43

43

41

41

42

42

43

41

43

43

41

40

40

40

42

43

45

45

46

48

47

44

44

Jan.

42

40

39

40

39

40

40

41

40

40

42

42

43

43

43

43

43

42

42

43

43

42

43

44

45

46

42

45

45

45

45

42

Feb.

..

46

45

44

44

44

44

44

45

45

43

43

43

44

45

46

43

43

43

43

43

44

44

43

45

46

46

47

48

44

liar.

47

46

45

44

43

44

43

44

46

48

46

46

45

45

45

45

45

45

45

44

45

45

46

46

50

51

50

55

50

50

50

46

Apr.

50

49

50

56

51

50

50

48

49

49

49

50

50

49

50

50

52

53

53

52

52

53

53

52

53

52

51

51

52

52

~

51

May

51

52

52

51

52

52

53

51

52

52

53

54

54

54

54

55

53

56

56

55

55

55

56

56

56

57

57

57

56

57

56

54

June

56

57

57

_

_

58

57

56

55

55

56

57

58

59

60

60

60

61

61

61

59

59

61

60

60

58

61

~

58

July

62

64

55

65

66

68

68

69

67

68

66

67

68

69

71

72

72

71

71

71

70

69

70

72

72

72

73

75

76

72

72

69

Aug.

74

75

75

75

73

74

74

73

70

70

70

70

71

72

72

73

72

74

75

75

74

74

75

72

71

_

70

70

71

71

71

73

Sept

73

73

73

71

71

70

69

69

68

66

65

63

65

66

68

68

68

68

69

68

69

68

69

70

70

70

70

69

69

69

60
SACRAMENTO RIVER BASIN Continued 

AMERICAN RIVER AT FAIR OAKS, CALIF.

LOCATION. At highway bridge at gaging station at Fair Oaks, Sacramento County, 10 miles downstream from 

DRAINAGE AREA. 1,921 square miles.

RECORDS AVAILABLE. Chemical analyses: January to December 1906. March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 67 ppm Jan. 11-20; minimum, 29 ppm June 1-10.

Hardness: Maximum, 36 ppm March 11-20; minimum, 15 ppm May 1-10.

Specific conductance: Maximum daily, 102 micromhos Mar. 11; minimum daily, 29.1 micromhos June 3.

Water temperatures: Maximum observed, 80°F July 28, Aug. 4; minimum observed, 40*F Jan. 3, 4, 10. 

EXTREMES, March 1951-September 1952. Dissolved solids: Maximum 69 ppm Aug. 21-31, 1951; minimum, 29 pp

Hardness: Maximum, 41 ppm Aug. 1-Sept. 10, 1951; minimum 15 ppm May 1-10, 1952.

Specific conductance: Maximum daily, 112 micromhos Aug. 23, 1951; minimum daily, 29.1 micromhos June 

Water temperatures: Maximum observed, SO'F July 23, Aug. 4, 1952; minimum observed, 40'F Jan. 3, 4, 1

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conducta

Sacremento, Calif. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951...

Oct. 21-31 .......

Nov. 11-20.......

Nov. 21-30.......

Dec. 1-10........

Dec. 21-31.......

Jan. 1-10, 1952... 

Jan. 11-20 .......

Feb. 1-10........

Feb. 11-20.......

Feb. 21-29.......

Mar. 1-10. .......

Mar. 21-31.......

Apr. 1-10........

Apr. 11-20.......

Apr. 21-30.......

Mean 

discharge 

(cfs)

444

505 

1,072 

740 

2,120 

2,842

7,1.93 

2,059 

6,911 

4,024 

13,190 

9,830

12,480 

8,716 

7,781 

6,783 

9,191 

8,479

12,070 

12,240 

16.930

Silica 

(810.)

a 

11 

11 

11 

11

13

13 

14 

13 

14 

15 

14

14 

14 

15 

15 

16 

15

12 

12 

11

Iron 

(Fe)

0.02 

.02 

.04 

.02 

.04 

.05

.08 

.04 

.04 

.04 

.08 

.03

.03 

.03 

.05 

.04 

.06 

.05

.03 

.04 

.15

Calcium 

(Ca)

8.8 

7.9 

8.4 

7.9 

8.8 

7.9

7.0 

7.3 

6.4 

7.2 

7.0 

7.1

6.8 

6.2 

6.8 

6.5 

7.4 

7.0

5.2 

4.6 

4.2

Magnesium 

(Mg)

3.2 

2.8 

3.1 

3.1 

3.1 

3.1

2.9 

3.0 

2.9 

3.0 

3.5 

3.5

2.8 

2.8 

3.2 

3.1 

4.2 

3.5

2.1 

1.8 

1.5

Sodium 

(Na)

3.6 

3.1 

3.0 

2.9 

3.8 

2.4

2.0 

2.2 

2.5 

2.7 

3.9 

2.4

2.1 

2.4 

2.5 

2.8 

3.2 

3.0

2.3 

2.0 

1.7

Potassium 

(K)

.4 

.6 

.2 

.2 

.7 

2.9

2.7 

2.7 

1.0 

1.6 

1.9 

1.2

1.2 

1.4 

1.3 

1.5

.7

.7

1.1 

.8 

.5

Bicarbonate 

(HCO,)

39 

36 

37 

38 

34

30 

30 

35 

38 

42 

40

35

37 

37

38

26 

24 

22

Sulfate 

(S04)

4.8 

5.8 

5.2 

4.7 

8.6 

4.8

6.0 

5.5 

4.2 

4.7 

5.4 

5.2

3.9 

4.0 

4.6 

4.7 

5.3 

4.3

2.4 

2.1 

2.4

Chloride

(CD

4.0 

3.2 

3.6 

3.4 

3.6

4.0 

3.0 

2.4 

2.5 

2.9 

2.0

1.8

3.4 

1.9

2.0

3.1 

1.4 

.8

Fluoride 

(F)

0.3 

.1 

.1 

.1 

.2 

.2

.4 

.2 

.3 

.2 

.3 

.3

.3 

.3 

.3 

.3 

.1 

.1

.1 

.1 

.2

Nitrate 

(NO,)

0.1 

.3 

.3 

.1 

.0 

.8

.5 

.4 

.5 

.3 

.6 

.6

.7 

.4 

.1 

.6 

.7 

.5

.4 

.3 

.2

Boron 

(B)

0.08

.08 

.08

.07 

.08

Diss

(resid

Parts 

per 

million

58 

54 

58 

53 

57 

61

53 

53 

56 

59 

67 

59

53 

56 

59 

56 

64 

56

42 

38 

as
SACRAMENTO RIVER BASIN Continued

AMERICAN RIVER AT FAIR OAKS, CALIF. Continued

Chemical analyses, in parts per million, water year October 1951 to September 19

Date of collection

May 1-10, 1952.... 

May 11-20. ........

May 21-31 ........

June 1-10..........

June 11-20 ........

June 21-30 ........

July 1-10 .........

July 11-20. ........

July 21-31.........

Aug. 1-10.........

Aug. 11-20........

Aug. 21-31........

Sept. 11-20........

Sept. 21-30........

Weighted average

Mean 

discharge 

(cfs)

16,490 

18, 550 

19,440

16,550 

9,359 

7,387 

5,899 

3,791 

2,119

1,427 

798 

567 

471 

566 

542

6,929

Silica 

(SiO,)

11 

9.9 

8.9

8.9 

9.4 

10 

9.6 

10 

11

12 

13 

12 

12 

12 

11

12

Iron 

(Fe)

0.11 

.02 

.02

.06 

.02 

.02 

.01 

.04 

.02

.05 

.05 

.05 

.04 

.04 

.04

0.05

Calcium 

(Ca)

4.0 

4.8 

5.0

5.0 

4.0 

4.2 

3.9 

5.0 

5.7

6.0 

8.2 

8.4 

8.5 

8.5 

7.8

5.6

Magnesium 

(Mg)

1.2 

2.5 

2.1

2.0 

1.5 

1.5 

1.6 

1.7 

1.9

2.1 

2.5 

2.7 

2.8 

2.8 

2.6

2.4

Sodium 

(Na)

1.7 

1.4 

1.2

1.0 

2.5 

1.6 

1.6 

1.7 

2.0

2.2 

3.0 

3 3 

3". 3 

3.4 

3.4

2.1

Potassium 

(K)

0.5 

.5 

.7

.8 

.7 

.6 

.9 

1.1 

1.4

.9 

.9 

1.4 

1.4 

1.4 

1.4

1.0

Bicarbonate 

(HCO,)

20 

22 

20

22 

24 

20 

20 

24 

28

30 

38 

39 

40 

40 

38

28

Sulfate 

(S04 )

2.2 

2.1 

2.1

1.8 

2.2 

1.8 

1.7 

2.8 

2.5

2.8 

3.5 

3.7 

3.9 

4.6 

3.8

3.3

Chloride 

(Cl)

1.1 

2.4 

3.1

.8 

1.0 

.9 

1.1 

1.2 

1.8

1.9 

2.9 

3.4 

3.3 

3.6 

3.4

2.0

Fluoride 

(F)

0.2 

.1 

.1

.1 

.2 

.2 

.2 

.2 

.2

.1 

.1 

.1 

.1 

.1 

.1

0.2

Nitrate 

(NO,)

0.2 

.8 

.8

.7 

.2 

.3 

.6 

.6 

.5

.5 

.5 

.5 

.5 

.5 

.5

0.5

Boron 

(B)

0.02

.05 

.03

.05 

.05

Dis

(resi

r Parts 

per 

million

34 

33 

31

29 

34 

32 

34 

40 

42

44 

54 

55 

55 

56 

53

45
SACRAMENTO RIVER BASIN 257

SACRAMENTO RIVER BASIN Continued 

AMERICAN RIVER AT FAIR OAKS, CALIF. Continued 

Temperature (°F) of water, water year October 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct.

67

62

66

60

65

65

64

65

65

65

63

62

63

62

62

61

60

60

60

59

59

58

59

56

59

56

56

56

55

56

61

Nov.

56

56

59

60

59

59

58

56

56

56

50

54

53

54

52

51

50

51

51

50

49

49

41

46

46

49

49

49

49

49

--

52

Dec.

50

47

46

47

47

46

44

42

41

41

44

41

44

44

43

42

42

43

43

42

43

41

41

44

45

45

45

49

54

48

45

44

Jan.

44

41

40

40

41

41

41

43

41

40

42

45

45

45

43

46

47

45

45

46

45

45

45

47

48

48

47

47

46

46

47

44

Feb.

49

47

46

46

46

46

46

49

41

47

49

45

45

45

47

48

46

45

45

46

46

47

46

47

46

49

54

50

51

--

47

Mar.

50

47

45

45

45

48

45

46

53

50

47

46

45

44

46

45

46

45

46

46

46

49

48

49

53

53

51

50

51

50

51

48

Apr.

50

53

51

53

53

47

47

50

51

51

51

49

50

48

50

51

51

50

49

50

50

51

51

50

46

49

51

49

49

--

50

May

50

50

50

48

48

49

50

48

49

50

57

55

51

50

51

51

55

52

55

51

52

51

52

54

53

54

52

53

51

53

53

52

June

53

54

56

53

55

53

54

56

55

53

'54

54

51

53

55

56

60

58

57

60

58

58

58

56

56

59

58

57

58

61

--

56

July

60

64

65

65

65

66

65

68

68

65

59

68

61

68

70

_

75

75

70

71

70

71

75

76

75

76

75

80

75

75

78

70

Aug.

75

75

74

80

75

74

79

73

71

73

73

71

70

72

72

79

74

79

74

72

72

72

79

71

69

69

69

75

69

76

73

74

Sept.

76

75

70

73

76

69

70

70

68

65

63

59

60

70

73

66

74

70

68

69

69

70

72

70

71

71

74

70

71

69

70
SACRAMENTO RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SACRAMENTO RIVER BASIN 

Chemical analyses, in parts per million, water year October 1951 to Sep

Date of collection

Water 

discharge 

(cfs)

Silica 

<SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO.)

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(Cl)

FluOride 

(F)

Nitrate 

(NO,)

Boron 

(B)

SACRAMENTO RIVER AT DELTA

Feb. 18, 1952..... 

Mar. 11. ..........

May 12. ...........

2,250 

1,560 

2,790 15 0.00 3.6 6.1

3.0 

3.4 

1.9 0.3

46 

50 

43 2.0

1.4 

2.5 

.7 0.0 0.6 0.04 

PIT RIVER NEAR CANBY 

Oct. 10, 1951......

Hov. 14...........

May 13, 1952......

Sept. 11...........

60 

99 

970 

58

28 0.00 14 4.4

28 

26 

9.1 2.3

156 

121 

83 

125

4.9

7.0 

6.8 

1.2 

1.1

0.0 0.6 0.03 

BURNEY CREEK NEAR BURNEY 

Oct. 10, 1951......

Sept. 11. ..........

16 0.00 4.1 1.4

4.6 

5.4 

1.4 0.5

68 

60 

24 

72

0.7

1.0 

1.5 

.4 

.5

0.0 0.0 0.02 

SACRAMENTO RIVER NEAR REDDING 

Feb. 19, 1952 .....

May 19. ...........

6,350 

14,400 

11,420 

12,850

22 

19 0.00

11 

10

4.1 

4.1

6.0 

6.0 

6.3 

5.5

0.4 

1.1

62

62 

50 

58

4.5

6.1

2.0

1.3

0.0

.0

0.0

.4

0.07

.02

COTTONWOOD CREEK NEAR COTTONWOOD

Feb. 13, 1952 ..... 

Mar. 11...........

Sept. 10...........

1,890

972

76

16 20

6.6

5.4 O Q

123

71

3.8 

4.8

.6
SACRAMENTO RIVER NEAR HAMILTON CITY

MOT. 15............

Feb. 14, 1952 ......

Sept. 10. ...........

4,996

33,740

19,600

7,680

20 0.00 10

11

6.2

6.4

5.2 1.0

72

65

58

62

5.8

2.5

2.0

1.3

0.00 

STONY CREEK NEAR HAMILTON CITY

Mar. 12. ...........

May 14. ............ 398 10 0.00 28 9.5

9.9

12

8.5 0.7

119

139

126 15

9.8

14

9.2 0.0 0.6 0.10 

SACRAMENTO RIVER AT KNIGHTS LANDING

May 16. ............

Sept. 22. ...........

a!9,400

al7,300

a9, 100

21

0.00

.00

12

12 5.0

8

17

8.0

1.3

1.1

QQ

74

65

107

10

10

3 

a

3.0

3.8

10

0.0

.0

0.3

.4

0.06

.07

SACRAMENTO SLOUGH NEAR KNIGHTS LANDING

Feb. 21, 1952 ......

May 16.............

Sept. 22............

a 229

21,800

17 300

1,097

27 0.00 32 21

8.1

45 1.6

71

53

165

219

21

46

9.0

3.2

86

30

0.1 1.5 0.18 

a Mean daily discharge (cfs). 

b Residue at 180'C.
SACRAMENTO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SACRAMENTO RIVER BASIN IN CA

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

INDIAN CREEK NEAR CRESCENT MILLS

Oct. 9, 1951........

Sept. 11............

49

169

3,960

66

19 0.00 6.8 Z

n

7.7

9.5

2.7 1.1

99

84

37

110

1.6

3.2

4.8

.5

2.0

0.0 0.1 0.04 

FEATHER RIVER NEAR OROVILLE

Feb. 13, 1952 ......

Sept. 12. ...........

12,000

2,850

14

0.00

8.4

5.4

3.9

2.5

3.9

3 7

1.9

0.6

.8

52

50

33

62

2.6

1.2

2 5

1.1

.6

.5

0.0

.0

0.5

.2

0.30

.03

YUBA RIVER NEAR SMARTSVILLE

Feb. 13, 1952 ......

May 12

Sept. 12. ...........

an A

1,454

922

730

15

11 0.00

6.4

5.4

2.4

1.6

2.6

1.1

0.8

.4

an

32

40

25

57

3.3

2.2

Z

rt

S

O

1.5

.4

.6

0.0

.0

0.1

.1

0.39

.02
YUBA RIVER AT MARYSVILLE

Mar. 21. ...........

Sept. 16. ...........

9 T49

a 6, 590

a 6, 100

a 498

14

14

11 0.00

6.2

7.8

3.3

3.2

1.6

2.3

2

1

1.2

0,4

.4

.5

34

39

40

24

56

4.1

4.5

3.2

2 9

1.1

2.2

.9

.9

0.1

.0

.1

0.6

.1

.2

0.15

.02

.02

BEAR RIVER NEAR WHEATLAND

Mar. 21. ...........

May 16.............

1

ACf\

4,730

515

13

10 0.00

7.3

9.1

6.0

4.1

3.9

2.7

2.5

2

rj

3.4

2.0

1.8

.8

.5

38

44

29

7.3

6.8

2.0

2

C

3.0

1.0

0.1

.1

.0

0.3

.1

.1

0.01

.03

.02

FEATHER RIVER AT NICOLAUS

Sept. 17............ 1,950

5 7

3

(7

44

42

69 2.3

.4

a Mean daily discharge (eta), 

b Residue at 180°C.
SACRAMENTO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SACRAMENTO RIVER BASIN IN CA

Chemical analyses, inpartsper million, water year October 1951 to Septembe

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO.) (Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium

Bicarbonate 

(HCO,)

Carbonate 

(CO,) (SO,)

Chloride 

(Cl)

Fluorids

(F)

Nitrate 

(NO,)

Boron 

(B)

AMERICAN RIVER AT SACRAMENTO (AT "H" STREET BRIDG

Oct. 8, 1951........ 541 4.9

November.......... 4.0

Feb. 21, 1952 ...... 9,960 2.6

Mar. 14............ a5,800 4.1

May 22............. 19,600 7.8 0.00 4.4 0.7 1.2

Sept. 23............ 583 _____ ___________ 

Oct. 18, 1951....... a9,010 9.0

Nov. 21............ a!7,770 12

Feb. 21, 1952...... 69,390 6.0

Mar. 11............ a60,250 7.6

May 22............. a70,300 15 0.00 6.8 3.4 3.8

Sept. 23............ al2,100 _______________ 

Oct. 21, 1951....... 13

Nov. 16............ 16

Mar. 11, 1952...... 11

May 15............. 12 0.00 21 IS 9.7

Mpt. 16............ _____________________

a Mean daily discharge (cfs).

0.7

5.8 

3.0 

1.5 

3.5 

.5 

3.0

0.3

SACRAMENTO RIVER AT SACRAMENTO (TOWER BRIDGE)

0.9

71

71

62

70

39

111

7.5

8.0

4.1

9.0

1.3

11

0.04

CLEAR LAKE (NORTH END) CLEAR LAKE OAKS

2.1

191

196

150

144

166

8.2 

9.0 

7.0 

4.5 

6.2

2.6
CLEAR LAKE (WEST SIDE) LAKEPORT

Nov. 16............

Feb. 14, 1952 ......

Mar. 11............

May 15. ............ 9.1 0.00 21 14 9.3 1.9

139

135

142 10

10

6.0

6.5

4.8 0.1 1.8 O.T2 

CACHE CREEK NEAR LOWER LAKE

May 14. ............

June 13. ............

July 10. ............

Sept. 16............

a 564

a 425

a 449

a 304

7.4

13

0.00 24

24

24

17

16

10

14

13

2.3

1.8

2.2

165

164

166

177

12

11

10

8

B

9 0

6.2

6.0

7.0

5.0

0.1

.1

.1

2.4

1.5

1.3

1.0

1.1

1.1

.50

NORTH FORK CACHE CREEK NEAR LOWER LAKE

Dec. 26, 1951 ......

May 14. ............

July 10. ............

404

404

84

13

19

14

0.00 32

36

27

31

33

26

34

1.4

1.7

2.0

194

229

b268

_

18

16

28

10

20

34

49

0.0

.0

.1

_

0.6

1.1

.5

2.1

1.4

2.1

3.4

a Mean dally discharge (ctu).

b includes equivalent of 10 parts per nillioa of carbonate (CO,).
SACRAMENTO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SACRAMENTO RIVER BASIN IN CAL

Chemical analyses, in parts per million, water year October 1951 to Septembe

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOS)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

CACHE CREEK NEAR CAPAY

Dec. 27, 1951 ......

Mar. 19. ...........

May 9. .............

July 3. .............

6,190

7,720

4,900

a 1,050

698

531

454

14

12

9.9

11

0.00

22

32

27

28

17

28

25

21

21

11

23

24

26

25

2.6

1.4

2.5

2.2

2.3

101

149

199

165

226

200

199

28

24

16

16

9.5

13

12

22

23

20

22

0.0

.0

.1

.2

.1

_

.6

1.0

1.5

.9

0.15

.B7

.99

1.3

1.3

1.8

PUTAH CREEK NEAR WINTERS

Mar. 10. ...........

JulyS..............

Sept. 9. ............

736

440

42

4.8

24

25

27

37

55

61

63

5.0

14

17

18

25

1.2

1.3

2.1

1.5

73

97 A

c257

334

416

409

d430

39

41

38

32

3.2

8 9

10

12

12

19

18

27

0.0

.0

.0

.0

0.1

.3

2.5

.7

0.07

.35

.56

.65

1.0

1.1

SACRAMENTO RIVER NEAR RIO VISTA

Nov. 21 ............

Mar. 24. ...........

Sept. 18. ...........

14 0.00 5.1

12

13

0.9

69

100

45

164

8.6

14

8.0

14

5.5

15

0.0 0.8 0.06 

a Mean daily discharge (cfs).

c Includes equivalent of 11 parts per million of carbonate (COS).

d Includes equivalent of 16 parts per million of carbonate (CO,).
NAPA RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN NAPA RIVER BASIN IN CA

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Water 

discharge 

(Cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Bo

ron 

(B)

NAPA RIVER NEAR ST. HELENA

May 15. ............

Sept. 9. ............

18

1.2

39 0.00 22 2.5 119

198

15

7.8

13

9.2

0.2 6.1 0.46 

RUSSIAN RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN RUSSIAN RIVER BASIN IN C

EAST FORK RUSSIAN RIVER AT POTTER VALLEY

Mar. 6. ............

Sept. 15. ...........

3 9

100

109

49

61

88

6.3

4.2

5.0

1.8

2.0

2.5

2.6

0.2 0.2 0.19 

EAST FORK RUSSIAN RIVER NEAR CALPELLA

Nov. 14 ............

Sept. 15. ...........

245

270

277

17 0.00 16

8.0

4.5 0.7

100

112

70

78

92

7.5

4.2

5.5

2.2

3.2

3.0

.7

0.0 0.0 0.27 

a Mean daily discharge (cfs).
RUSSIAN RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN RUSSIAN RIVER BASIN IN CALI

Chemical analyses, in parts per million, water year October 1951 to September 

Date of collection

Water 

discharge 

(els)

(SiO.) (Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na) (K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,) (S04)

Chloride 

(Cl)

ride 

(F) (NO,) (B)

RUSSIAN RIVER AT UKIAH

Oct. 9, 1951 ....... 6.5

Nov. 14............ 7.7

Feb. 11, 1952 ...... 4.6

Mar. 6............. 6.4

May 19............. 21 0.00 17 7.3 5.5

Sept. 15............ _____________ ________ 

Oct. 9, 1951........ 161 6.0

Nov. 14............ 273 8.0

Feb. 11, 1952 ...... 2,590 5.0

Mar. 6............. 2,140 5.4

May 19............. 378 17 0.00 18 7.0 8.1

Sept. 15............ 214 __________________.-

Oct. 9, 1951........ 188 10

Nov. 13............ 436 8.0

Feb. 11, 1952 ...... 2,930 6.4

Mar. 6............. 3,290 6.4

May 19............. 516 23 0.00 22 13 8.1

Sept. 15............ 189 ____ ___ 

0.5

106

115

61

108

90

95

6.0 

5.8 

3.0 

4.5 

3.2 

2.7

0.3 0.29 

RUSSIAN RIVER NEAR HOPLAND

110

110

75

72

89

99

0.4 0.29 

RUSSIAN RIVER NEAR HEALDSBURG

150

140

116

107

133

139

7.0 

5.2 

4.5 

5.2 

5.5 

5.0
RUSSIAN RIVER AT GUERNEVILLE

Oct. 9, 1951

Nov. 12............

Feb. 11, 1952 ......

Mar. 6.............

May 19.............

Sept. 15. ...........

172

2,230

3,890

3,680

602

196

20 0.00 25 14

10

12

7.3

8.3

8.9 1.2

158

151

116

123

146

149

13

7.2

8.2

4.5

7.0

7.3

5.3

0.2 0.6 0.43 

EEL RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN EEL RIVER BASIN IN CAL

EEL RIVER NEAR McCANN

May 20. ............

Sept. 16. ...........

7.4

.00

4.4

3 7

3

n

65

I9R

65

132

1

0

5.3

.0 .1

SOUTH FORK EEL RIVER NEAR MIRANDA

Oct. 10, 1951.......

Feb. 4, 1952 .......

May 20. ............

Sept. 16............

57

9,340

378

47

20

8.0

4.3

6.2

127

62

48

63

134

6.4

5.0

2.8

6.9

0.2
EEL RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN EEL RIVER BASIN IN CALIF

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Water 

discharge 

(cfs)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO,)

Chloride 

(CD

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

EEL RIVER AT SCOTIA

Oct. 10, 1951.......

Feb. 4, 1952 .......

Mar. 5.............

Sept. 16. ...........

240

4,700

44,700

9,390

4,140

100

8.9 0.00 19 5.1

7.7

7.3

3.7

6.0

3.0 0.8

142

70

65

98

83

156

5.0

8.0

8.0

2.5

4.5

1.9

9.4

0.0 0.4 0.08 

KLAMATH RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN KLAMATH RIVER BASIN IN 

KLAMATH RIVER NEAR COPCO

Mar. 18. ...........

Sept. 3.............

30 13

12

8.5

9Q

1 ft

17

11

2.6

2.0

HI

97

7ft

79

63

79

34

24

4.8

2.0

1.2

0.1

.0

5.0

1.2

0.11

.07

KLAMATH RIVER AT SOMESBAR

Oct. 13, 1951.......

Feb. 7, 1952 .......

Sept. 17. ...........

2,360

22, 900

3,700

99 9.2 4.6

12

14

4.8

4.8 0.9

99

87

79

53

102

8.4

6.0

5.5

2.8

2.2

5.0

0.0 0.3 0.08 
TRINITY RIVER AT LEWlSTON

Feb. 21, 1952....... 2,110 2.5

Mar. 12............ 1,910 2.6

May 18............. 7,650 11 0.00 3.2 5.8 .7

Oct. 13, 1951....... 760 4.6

Nov. 18............ 1,840 4.2

Feb. 4, 1952 ....... 36,600 2.5

May 21............. 14,600 17 0.00 8.0 4.9 1.7

Sept. 17............ 588 ________________ 

Nov. 15, 195L...... 18,300 4.9

Feb. 6, 1952....... 69,200 3.1

Mar. 5............. 30,400 4.5

May 22............. 37,800 18 0.00 8.8 4.6 3.2

Sept. 17............ 4,480

1.3

1.5 

1.5 

.8 0.4 

TRINITY RIVER NEAR HOOPA

4.0

7.5 

5.2 

1.5 

2.0 

5.6

KLAMATH RIVER NEAR KLAMATH

4.8 

1.8 

5.5 

1.8 

4.5
HAMATH RIVER BASIN

TRINITY RIVER AT LEWISTON, CALIF.

LOCATION. Temperature recorder at gaging station at highway bridge at Lewiston, Trinity County, 0.

DRAINAGE AREA. 724 square miles.

RECORDS AVAILABLE. Water temperatures: September 1951 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 73 °F Sept. 3; minimum, 33°F Jan. 10-26.

REMARKS.--Records of discharge for water years 1950-51 and 1951-52 given in WSP 1215 and 1245, resp

Temperature (°F) of water, September 1951 to September 1952

Day

2

13 .......

 to

10

21 ....... ~ 

22 

44

24 -

9ft

«o

30 - _--- 

31 

Average 

September

max

66 

87 

88 

73 

73

72 

71 

71 

72 

72

71 

70 

68 

88 

88

87 

68 

69 

70 

70

70 

88 

67 

67 

87

88 

86 

65 

65 

64

69

min

85 

65 

86 

87 

68

87 

66 

86 

66 

66

66 

65 

84 

84 

84

65 

63 

64 

65 

65

85 

85 

64 

84 

83

65 

84 

84 

84 

84

65

October

max

84 

62 

81 

82 

82

82 

63 

83 

62 

81

59 

59 

59 

60 

59

58 

57 

57 

58 

58

56 

55 

54 

53 

51

51 

51 

52 

52 

53 

52

58

min

82 

80 

60 

81 

60

60 

81 

61 

80 

59 

59 

57 

57 

58 

58

56 

55 

55 

55 

56

54 

54 

53 

50 

50

50 

50 

51 

51 

52 

51

56

November

max

53 

53 

53 

53 

53

53 

52 

52 

52 

52

50 

47 

46 

46 

48

46 

46 

48 

48 

46

46 

45 

45 

45 

45

48 

48 

45 

45 

45

46

min

51 

52 

51 

52 

51

52 

52 

52 

52 

50

47 

48 

48 

48 

46

48 

45 

46 

48 

48

45 

45 

45 

45 

45

45 

45 

45 

45 

45

48

December

max

45 

45 

45 

41 

41

41 

42

40 

40 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38

36 

36 

36 

36 

35

35 

35 

35 

35 

35 

35

38

min

45 

45 

41 

41 

41

41 

40 

40 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

36 

36

38 

36 

38 

35 

35

35 

35 

35 

35 

35 

35

38

January

max

35 

35 

35 

35 

35

35 

35 

35 

35 

35

33 

33 

33 

33 

33

33 

33 

33 

33 

33

33 

33 

33 

33 

33

38 

38 

38 

38 

38 

39

34

min

35 

35 

35 

35 

35

35 

35 

35 

35 

33

33 

33 

33 

33 

33

33 

33 

33 

33 

33

33 

33 

33 

«« oo

33

33 

38 

36 

36 

38 

38

34

February

max

39 

39 

40 

40 

40

40 

40 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

40

40 

40 

40 

41 

41 

41 

41 

41 

41

41

min

39 

39 

39 

40 

40

40 

40 

40 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

40 

40

40 

39 

39 

40 

41

41 

41 

41 

41

40

March

max

41 

42 

41 

41 

41

41 

41 

41

42 

42

42 

42 

41 

41 

38

42 

42 

42

41 

41

41 

42 

42 

43 

45

45 

45 

45 

48 

45 

45

42

min

41 

41 

41 

41 

41

38 

38 

41 

41 

42

42 

41 

41 

37 

37

38 

42 

41 

40 

41

41 

41 

42 

42 

42

42 

42 

42 

43 

43 

42

41

April

max

44 

45 

46 

47 

47

46 

45 

45 

47 

46

48 

48 

45 

45 

47

47 

49 

49 

49 

47

48 

48 

48 

48 

48

48 

48 

48 

48 

46

47

min

42 

43 

43 

43 

43

43 

43 

42 

42 

42

42 

43 

43 

42 

42

44 

44 

44 

43 

42

43

44 

44 

44 

43

44 

44 

44 

43 

44

43
SMITH RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SMITH RIVER BASIN IN 

Chemical analyses, in parts per million, water year October 1951 to Se

Date of collection

Water 

discharge 

(cfs)

Silica

(sicg

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

So-

(N£)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO.)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(HO,)

Boron 

(B)

SMITH RIVER NEAR CRESCENT CITY

Feb. 6, 1952 .......

Sept. 18............

1,030

10,500

260

5.2 5.6

2.0

2.0

1.5

1.0

1.2 0.1

66

52

41

46

44

79

2.7

9.5

2.8

2.5

4.5

2.0

2.9

0.0 0.0 0.05 
PART 12. PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COL

PACIFIC SLOPE BASINS NORTH OF COLUMBIA RIV

WILLAPA RIVER BASIN 

WILLAPA RIVER AT LEBAM, WASH.

LOCATION. Temperature recorder at gaging station half a mile west of Lebam, Pacific County, and 

DRAINAGE AREA. 41.4 square miles.

RECORDS AVAILABLE. Water temperatures: March to September 1952.

REMARKS. No temperature record Oct. 1 to Mar. 18, Aug. 13-26, Sept. 13-25. Records of discharg

given in WSP 1246.

Temperature (°F) of water, for the period March 1952 to September 1

/Continuous water-stage recorder with temperature attachment?

Day

16 ... - . -

1 Q

91

99

9R

9.7

29 ----- _ _ __ . ...

31 ..... .

Average 

October

max min

November

max min

December

max min

January

max min

February

max min

March

max

44 

44

46 

47 

47 

47 

49 

40 

50 

50 

47 

46 

45

min

42 

42

41 

41 

45 

46 

47 

47 

47 

47 

45 

45 

43

April

max

47 

47 

49 

52 

53

53 

49 

49 

51 

52

51 

51 

51 

52 

53

53 

55 

55 

55 

53

53 

53 

54 

54 

53 

53 

53 

53 

49 

49

52

min

43 

45 

45 

46 

47

49 

44 

44 

45 

46

49 

47 

50 

49 

48

48 

49 

51 

50 

47

48 

48 

48 

50 

50 

52 

52 

49 

45 

47

48

May

max

49 

50 

50 

50 

49

50 

50 

50 

52 

54

54 

54 

54 

53 

54

59 

61 

61 

59 

57

55 

57 

59 

59 

58 

59 

61 

61 

57 

55 

54

55
CHEHALIS RIVER BASIN 

CHEHALIS RIVER NEAR GRAND MOUND, WASH.

LOCATION. Temperature recorder at gaging station at Meadow, li miles southwest of Grand Moun

Skookumchuck River. 

DRAINAGE AREA. 895 square miles.

RECORDS AVAILABLE. Water temperatures: March 1952 to June 1952.

REMARKS. No temperature records Oct. 1 to Mar. 17, July 1 to Sept. 30. Records of discharge 

given in WSP 1246.

Temperature (°F) of water, March to June 1952 

/Sontinous water-stage recorder with temperature attachment?

Day

12

1 Q

20

23

OR

Oft

31 

Average 

October

max mln

November

max mln

December

max min

January

max min

February

max min

March

max

44 

44 

44

44 

44 

44 

46 

47

48 

48 

49 

49 

47 

46

"

mln

44 

44 

44 

44 

44 

44 

44 

46

47 

48 

48 

47 

46 

45

--

April

max

45 

45 

46 

48 

51

51 

51 

49 

49 

50 

50 

51 

51 

51 

51 

51 

53 

53 

53 

53 

53 

53 

53 

53 

54

54 

54 

54 

52 

51

51

min

45 

45 

45 

46 

48

51 

49 

49 

48 

49 

50 

50 

50 

50 

50 

50 

51 

52 

53 

53 

52 

52 

52 

53 

53

54 

54 

52 

51 

50

50

M

max

50 

50 

51 

51 

52

52 

52 

52

54 

55 

56 

58 

58 

58 

58 

60 

60 

61 

61 

61

61 

60 

60 

61 

62

64 

67 

67 

64 

64 

64

58
NISQUALLY RIVER BASIN 

NISQUALLY RIVER NEAR NATIONAL WASH.

LOCATION. Temperature recorder at gaging station 100 feet downstream from railroad bridge, 

of Ashford, and 3 miles upstream from Mineral Creek. 

DRAINAGE AREA. 133 square miles.

RECORDS AVAILABLE. Water temperatures: October 1951 to July 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 61'F July 9, 1952; minimum, 34"F Jan. 2-9, 

REMARKS. No temperature record July 16 to Sept. 30. Records of discharge for water year O

Temperature (°F) of water, October 1951 to July 19S2 

/Continuous water-stage recorder with temperature attachme

Day

g

19

14 ...................

IB . .

AA

as 

26 - . 

29 

30 

SI 

Average 

October

max

50 

50 

50 

50 

50 

51 

52 

53 

53 

53

53 

53 

52 

52 

51

50 

49 

48 

48 

48

47 

46 

45 

44 

44

44 

44 

44

44 

44 

43

49

min

50 

SO 

50 

50 

50

50 

51 

52 

53 

53

52 

52 

50 

50 

49

49 

48 

47 

47 

47

46 

45 

44 

44 

44

44 

44 

44 

44 

43 

42

48

November

nvut

42 

42 

43 

43 

43

43 

43 

44 

44 

44

44

43 

43 

42 

42 

42 

41 

41 

41 

41

41 

41 

41 

40 

40

41 

41 

41 

41 

41

42

min

41 

40 

42 

43 

43

43 

43 

43 

44 

44

43 

42 

42 

42 

42

41 

40 

40 

41 

41

41 

41 

40 

39 

39

40 

41 

41 

41 

41

41

December

max

41 

41 

41 

40 

39

39 

38 

38 

38 

39

39 

39 

39 

38 

38

38 

38 

37 

37 

37

37 

38 

38 

37 

36

36 

37 

37 

37 

37 

37

38

min

41 

41 

40 

39 

39

38 

37 

37 

37 

38

39 

39 

38 

37 

38 

38 

37 

37 

37 

37

37 

37 

37 

36 

36

36 

36 

37 

37 

37 

36

38

January

max

36 

35 

34 

34 

34

34 

34 

34 

36 

35

35 

35 

34 

34 

34 

34 

34 

34 

34 

34

34 

34 

35 

36 

36

37 

39 

39 

41 

39 

38

35

min

35 

34 

34 

34 

34

34 

34 

34 

34 

35

35 

34 

34 

34 

34

34 

34 

34 

34 

34

34 

34 

34 

35 

36

36 

37 

37 

39 

38 

38

35

February

max

39 

39 

39 

39

40 

40 

40 

41 

41

40 

39 

38 

39 

39

39 

37 

37 

37 

37

38 

37 

39 

39 

39

39 

40 

40 

39

39

min

38 

39 

38 

38

38 

38 

37 

38 

39

38 

37 

36 

38 

38

37 

36 

35 

36 

36

35 

35 

36 

36 

38 

38 

38 

36 

36

37

March

max

38 

38 

39 

39 

38

41 

42 

42 

41 

39

40 

41 

40 

41 

43

44

40 

39 

39 

41

44 

45 

42 

43 

43 

45 

46 

42 

40 

40 

42

41

min

35 

36 

37 

37 

36

36 

35 

36 

39 

37

36 

37 

38 

38 

37

36 

38 

36 

36 

36

35 

35 

39 

41 

41

41 

39 

40 

39 

38 

38

37

April

nuut

43 

42 

44 

50 

50

44 

44 

45 

47 

48

44 

47 

43 

45 

48

49 

SO 

49 

43 

48

50 

47 

50 

49 

SO

47 

43 

43 

43 

44

46

min

39 

40 

40 

40 

41

39 

38 

37 

39 

SB

41 

40 

42 

41 

40

41 

41 

41 

41 

40

40 

42 

40 

41 

42

42 

41 

40 

38 

42

40

M

max

44 

46 

48 

48 

45

47 

48 

46 

52 

SO

47 

50 

46 

40 

45

53 

SO 

SO 

44 

44

46 

S3 

53 

54 

SI

54

55 

50 

48 

51 

47

4B
NISQUALLY RIVER BASIN Continued 

MINERAL CREEK NEAR MINERAL, WASH.

LOCATION.--Temperature recorder at gaging station, three-eighths of a »ile downstream from 

24 miles northeast of Mineral, Lewis County. 

DRAINAGE AREA. 74.3 square miles (revised).

RECORDS AVAILABLE. Water temperatures: August 1951 to September 1951. 

REMARKS. No temperature record Oct. 1 to July 31; Aug. 5-7, 19-23.

_ Temperature (*f) at water, August to September 1951 

/Continuous water-stage recorder with temperature attachm

Day

11 .... ...

19 

23

25 - 

9A

28

30 - - 

Average 

October

max min

November

max mln

December

max min

January

max min

February

max min

March

max min

April

max min

ma
NISQUALLY RIVER BASIN Continued 

MINERAL CREEK NEAR MINERAL, WASH. Continued

LOCATION.--Temperature recorder at gaging station, three-eighths of a mile downstream from r

2J miles northeast of Mineral, Lewis County. 

DRAINAGE AREA. 74.3 square miles (revised).

RECORDS AVAILABLE. Water temperatures: August 1951 to September 1952.

EXTREMES, 1951-52.--Water temperatures: Maximum, 70°F July 14, Aug. 3, 4, 9-13, 1952; minimu

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 12

Temperature (°F) of 

/Continuous wat

water, water year October 1951 to Septembe

;r-stage recorder with temperature attachm

Day

4

Q

8 ..-.

12 ... _ .

1 R.

91

22

23

24

ne

26 , _____ ...........

no

31 

October

max

53 

53 

52 

52 

50

54 

55 

56 

54 

53

52 

51 

52 

50 

48

48 

46 

47 

48 

47

46 

45 

45 

46 

46

46 

45 

45 

45 

45 

43

49

min

52 

52 

49 

49 

47

50 

49 

49 

49 

49

51 

50 

50 

48 

46

47 

45 

46 

47 

46

45 

44 

45 

45 

45

45 

44 

44 

45 

43 

42

47

November

max

42 

42 

45 

45 

44

44 

44 

45 

45 

44

44 

44 

44 

43 

43

42 

41 

42 

42 

42

42 

42 

42 

41 

41

42 

42 

42 

41 

42

43

min

41 

41 

42 

43 

42

43 

44 

44 

44 

44

44 

44 

43 

43 

42

41 

41 

41 

42 

42

42 

42 

41 

40 

40

41 

42 

41 

41 

41

42

December

max

42 

42 

41 

41 

40

40 

40 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

38 

38 

39 

39 

38 

38

39

min

42 

41 

41 

40 

40

40 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

38 

38 

39

39 

39 

39 

39 

38

38 

38 

38 

38 

38 

38

39

January

max

38 

37 

36 

36 

37

37 

37 

37 

37 

37

37 

37 

37 

37 

37

37 

37 

37 

37 

37

37 

37 

37 

37 

37

37 

38 

38 

38 

38 

40

37

min

37 

36 

36 

36 

36

37 

37 

37 

37 

37

37 

37 

37 

37 

37

37 

36 

36 

37 

37

37 

37 

36 

37 

37

37 

37 

38 

38 

37 

38

37

February

max

40 

40 

40 

40 

40

41 

40 

40 

41 

41

40 

39 

38 

40 

40

39 

38 

38 

38 

38

38 

38 

40 

39 

40

40 

42 

41

41

40

min

40 

40 

40 

40 

40

40 

40 

39 

39 

40

39 

38 

37 

38 

39

38 

37 

37 

37 

37

36 

36 

37 

38 

39

39 

39 

38 

39

38

March

max

40 

41 

41 

40 

40

42 

43 

42 

41 

40

40 

41 

40 

42 

44

43 

40 

41 

41 

41

44 

44 

42 

41 

41

43 

44 

41 

40 

40 

41

41

min

37 

38 

39 

38 

37

38 

37 

38 

40 

39

38 

38 

39 

39 

38

38 

38 

37 

38 

38

38

37 

40 

41 

41

40 

40 

40 

39 

39 

38

39

April

max

42 

41 

43 

47 

47

44 

44 

44 

46 

47

44 

46 

44 

45 

47

47 

48 

49

44 

47

49 

48 

49 

48 

49

47 

45 

44 

43 

44

46

min

39 

40 

40 

40 

41

41 

40 

40 

40 

41

42 

41 

43 

42 

41

42 

42 

43 

42 

41

41 

43 

42 

43 

44

44 

43 

41 

40 

43

42

M

max

46 

46 

49 

49 

46

47 

48 

46 

52 

5

5

5

48 

48 

46 

5

5

5

49 

47

4

54 

5

5

5

5

5

54 

5

5

4

5
DUWAMISH RIVER BASIN 277

DUWAMISH RIVER BASIN 

GREEN RIVER NEAR PALMER, WASH.

LOCATION.--At City of Tacoma Green River Pipe Line bridge about i mile below the headworks 

dam and 2 miles below gaging station which is 2| miles downstream from North Fork and 

4 miles southeast of Palmer, King County.

DRAINAGE AREA. 230 square miles (revised) at gaging station.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952. 

Sediment records: August 1950 to September 1952.

EXTREMES, 1950-51. Water temperatures: Maximum observed, 59°F Sept. 17; minimum, 

freezing point Mar. 8-10.

EXTREMES, 1951-52. Water temperatures: Maximum observed, 57°F July 13; minimum, freezing point Jan. 1-5.

REMARKS. Records of discharge for period August 1950 to September 1950 given in WSP 

1182. Records of discharge for water year October 1950 to September 1951 given in 

WSP 1216. Records of discharge for water year October 1951 to September 1952 given 

in WSP 1246.

Temperature (°F) of water, August to September 1952 

/6nce-daily temperature measurement generally about 9 a. mj

Day

1

2

3

4

5

6

7

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

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug.

56

56

57

55

56

54

54

54

54

56

56

56

58

60

58

58

58

48

48

46

55

--

Sept.

56

56

56

56

56

61

52

56

54

50

60

54

50

54

54

52

52

52

52

52

52

52

52

52

52

50

51

50

48

48

53
278 PACIFIC SLOPE BASINS IN WASHINGTON AMD UPPER COLOMBIA RIVER BASIN

DUWAMISH RIVER BASIN Continued 

GREEN RIVER NEAR PALMER, WASH. Continued

Temperature (°F) of water, water year October 1950 to September 1951 

^nee-daily temperature measurement, generally about 9 a. raj

Day

1

2

3

4

5

6

7

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

Oct.

46

46

46

48

46

46

46

46

46

46

46

46

48

48

46

46

44

46

46

48

42

48

46

46

48

43

44

44

44

44

44

46

Nov.

44

42

43

47

47

42

43

43

40

43

42

42

40

40

40

40

44

44

44

44

42

42

42

42

42

42

42

42

44

40

42

Dec.

40

42

38

42

40

42

42

38

40

41

40

40

42

42

40

40

42

40

40

40

40

42

42

42

46

42

40

42

42

38

38

41

Jan.

40

41

41

41

43

40

40

38

39

38

40

38

38

40

40

40

40

38

38

38

38

38

38

38

37

37

36

34

33

34

34

38

Feb.

35

33

34

34

34

40

38

38

42

38

38

38

37

40

40

40

40

40

40

36

36

36

37

38

36

38

38

38

_

_

~

38

Mar.

38

38

38

38

38

36

35

31

31

32

37

38

37

36

40

38

38

38

36

37

37

38

38

37

38

37

40

40

40

40

40

37

Apr.

40

40

40

38

38

38

42

38

37

40

40

40

44

43

42

42

40

40

40

40

40

42

40

42

46

40

40

40

40

40

40

May

40

42

42

40

40

42

42

42

42

48

__

_

42

42

40

42

46

46

40

44

44

44

50

46

46

45

46

42

42

42

42

43

June

42

42

42

42

46

46

46

46

44

46

46

44

46

48

50

49

49

48

48

48

50

50

52

55

54

52

52

50

52

54

48

July

54

53

54

54

54

54

54

52

54

50

55

53

55

55

55

55

58

55

58

56

55

54

54

57

54

53

54

54

54

54

57

54

Aug.

58

54

50

50

52

55

55

54

54

54

53

55

55

55

56

57

56

54

56

55

55

55

56

55

56

55

56

52

52

52

52

54

Sept.

52

52

55

57

55

56

56

55

55

55

52

52

50

53

52

50

59

54

54

54

54

55

55

54

54

50

49

49

50

50

~

53

 rature (°F) of water, water year October 1951 to September 1952 

ice-dally temperature measurement, generally about 9 a. raj

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

18

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

54

52

52

52

53

52

50

52

52

51

50

50

50

52

50

48

46

45

45

44

45

44

44

43

43

40

42

42

45

42

41

47

Nov.

40

39

40

39

42

40

42

43

43

43

42

41

41

38

40

40

37

40

40

40

40

40

39

38

37

40

40

38

39

40

40

Dec.

39

39

38

38

37

37

36

36

36

36

40

38

38

36

38

41

38

37

37

36

35

40

36

35

35

35

34

35

35

35

33

37

Jan.

32

32

32

32

32

33

34

35

35

33

34

34

33

33

34

33

33

34

37

34

34

34

33

33

33

35

36

35

36

36

36

34

Feb.

36

36

36

36

36

35

36

36

35

38

37

36

35

36

36

36

34

36

34

34

34

34

34

36

36

36

36

36

35

_

36

Mar.

36

36

35

36

36

36

37

36

38

37

36

36

36

36

36

36

38

37

36

36

36

36

36

38

38

38

38

38

36

36

36

37

Apr.

36

38

36

37

38

38

35

36

36

37

38

38

38

39

38

38

38

38

40

39

38

39

38

39

39

40

40

38

39

39

38

May

38

39

38

40

38

38

40

40

40

41

41

40

40

42

40

41

42

42

42

40

40

40

41

42

42

42

42

45

43

41

43

41

June

42

43

44

45

44

43

44

45

45

47

43

42

43

45

44

44

43

44

49

49

45

44

44

46

47

48

50

48

47

46

45

July

45

45

48

50

48

45

48

50

52

54

54

56

57

54

54

54

52

52

53

53

51

52

52

50

50

52

52

52

54

55

55

52

Aug.

55

54

54

54

56

56

54

52

54

56

56

56

56

55

54

54

54

54

52

51

52

52

52

52

52

50

50

52

52

46

51

53

Sept.

52

55

50

50

50

52

50

50

51

50

52

53

49

50

47

49

49

50

51

._

51

51

52

52

52

52

49

50

48

51
DUWAMISH RIVER BASIN 279

DUWAMISH RIVER BASIN Continued

GREEN RIVER NEAR PALMER, WASH.--Continued

Suspended sediment, August to September 1950

Month

Aug. 11-31, 1950 ....

Aug. 11 to Sept. 30...

Water Discharge 

(cfs-days)

5,771

12,080

Suspended 

Sediment 

(tons)

49 

25

74

Water year October 1950 to September 1951

February

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

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

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

64,720

53 380

7,464

5,920

42, 570

440

2,020

40

18

Water year October 1951 to September 1952

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

Total .............

33, 355

55,090

5,619

261

81

259

233

498

753

374

22

6,370
DUWAMISH RIVER BASIN Continued 

GREEN RIVER NEAR PALMER, WASH. Continued

Particle-size analyses of suspended sediment, October 1950 to Februa

(Methods of analysis: B, bottom withdrawal tube; D, decantation; P, pipette; S, s

W, in distilled water; C, chemically dispersed; M, mechanically di

Date 

of 

collection

Oct. 10, 1950....

Ifeb. 9, 1951 .... 

Feb. 10 ........

May 11, 12 .....

Jan. 30, 1952....

Feb. 4 ..........

Time

8:30 a. m. 

4:00 p. m. 

10:00 p. m.

9:00 a. m. 

1:00 p.m. 

9:30 a. m. 

8:30 p. m. 

2:30 a.m.

10:45 p.m. 

4:30 a.m.

10:00 p. m. 

12:30 p.m. 

3:30 a.m. 

12:00 p. m.

Water 

discharge 

(cfs)

3,020 

4,850 

4,030

2,100 

2,200 

5,900 

8,000 

6,430

14,000 

12,000 

3,700

1,900 

1,300 

2,300 

5,200

Water 

temperature 

(«F)

Suspended sedimen

Concentration 

of sample 

(ppm)

92 

58 

17

12 

10 

124 

102 

53

666 

328 

51

26 

25 

33

Concentration 

of suspension 

analyzed 

(ppm)

3,400 

2,250 

634

433 

316 

4,670 

3,810 

1,720

Percent finer tha

0.002

11 

12 

12

21 

27 

10 

10 

9

0.004

20 

23 

20

33 

29 

21 

19 

19

0.008

32 

36 

42

50 

30 

32 

33 

35

0.016

58 

60 

68

72 

70 

65 

61 

70

0.031 
DUWAMISH RIVER BASIN Continued 

GREEN RIVER NEAR AUBURN, WASH.

LOCATION. Temperature recorder at gaging station 1J miles east of Auburn, King County, and 2 

DRAINAGE AREA. 382 square miles, revised (excludes 4 square miles in the vicinity of Youngs 

Cedar River basin since about 1935).

RECORDS AVAILABLE. Water temperatures: March to June 1952. 

REMARKS. No temperature record Oct. 1 to Mar. 19, July 1 to Sept. 30. Records of discharge 

given in WSP 1246.

Temperature (°F) of water, March to June 1952 

/Continuous water-stage recorder with temperature attachment.

Day

2

19

on

21

22

OQ

31 . .. - 

Average 

October

max mln

November

max min

December

max min

January

max min

February

max min

March

max

43

45 

45 

45 

45 

44

43 

45 

45 

43 

42 

42

--

min

42

41 

41 

45 

44 

43

43 

43 

43 

42 

42 

41

--

April

max

44 

44 

43 

48 

49

47 

44 

45 

47 

47

46 

48 

47 

47 

47

47 

49 

48 

47 

47

48 

48 

49 

49 

48

48 

46 

46 

44 

46

47

min

41 

43 

43 

43 

46

43 

41 

42 

43 

44

45 

45 

45 

45 

45

46 

47 

47 

44 

43

46 

47 

46 

47 

47

46 

46 

44 

43 

44

45

Ma

max

47 

48 

50 

50 

48

49 

52 

51 

52 

52

51 

51 

51 

47 

48

53 

52 

50 

50 

48

47 

50 

53 

54 

53

55 

57 

54 

51 

51 

51

51
STILLAGUAMISH RIVER BASIN 

JIM CREEK NEAR ARLINGTON, WASH.

recorder at gaging station, 1 mile upstream from mouth and 3 miles southea

DRAINAGE AREA. 48.9 square miles.

RECORDS AVAILABLE. Water temperatures: October 1951 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 66°F June 24-26, 1952; minimum 33°F Dec. 31, 19

REMARKS. No temperature record July 1 to Sept. 24. Records of discharge for water year October 

Temperature (°F) of water, water year October 1951 to September 1952 

/Continuous water-stage recorder with temperature attachment"7

Day

2

4

7 --

o

n

12 ---«

22

n«

24

25 

9A

27

9fl

29

Average -

October

max

58 

57 

57 

56 

55 

55 

58 

59 

59 

58

59 

58 

56 

55 

51

52 

50 

50 

51 

50

49 

49 

48 

50 

49

48 

48 

49 

49 

48 

45

53

min

57 

56 

54 

53 

52 

55 

53 

54 

55 

55 

57 

56 

55 

51 

51

50 

49 

49 

50 

49

49 

48 

47 

48 

48

47 

46 

47 

48 

45 

44

51

November

max

44

45 

46 

47 

46 

46 

47 

47 

47 

47

47 

46 

46 

45 

44

43 

43 

45 

45 

45 

44 

43 

42 

40 

43

44 

44 

44 

44 

45

45

min

42 

42

45 

46 

45 

46 

46 

46 

46 

47

46 

46 

45 

44 

43

42 

42 

43 

44 

43

43 

42 

40 

39 

40

43 

43 

43 

43 

44

44

December

max

44 

43 

43 

42 

42 

42 

41 

40 

40 

42

42 

42 

42 

39 

40

40 

40 

40 

40 

39

39 

39 

39. 

37 

37

36 

38 

38 

38 

37 

33

40

min

43 

43 

42 

42 

42 

41 

40 

40 

40 

40

42 

42 

39 

39 

39

40 

40 

40 

39 

38

38 

39 

37 

37 

36

35 

36 

38 

37 

36 

33

39

January

max

34 

35 

34 

36 

37 

37 

37 

37 

37 

37

37 

38 

37 

37 

37

37 

38 

39 

39 

39

39 

38 

38 

38 

39

40 

40 

40 

42 

42 

41

38

min

33 

34 

33 

34 

36 

36 

37 

37 

37 

37 

37 

37 

36 

36 

37

36 

38 

38 

39 

39

38 

38 

36 

37 

38

39 

40 

39 

40 

40 

40

37

February

max

42 

42 

42 

42 

42 

43 

43 

43 

44 

44

43 

40 

40 

40 

41

41 

40 

40 

39 

40

39 

40 

40 

42 

41

41 

43 

41 

42

41

min

41 

41 

42 

42 

41 

41 

43 

42 

43 

43 

41 

37 

39 

40 

40

39 

38 

39 

38 

38

37 

37 

37 

39 

40

39 

41 

38 

40

40

March

max

42 

41 

41 

41 

42 

44 

43 

43 

43 

41

42 

42 

42 

44 

45

43 

43 

42 

42 

43

45 

45 

43 

43 

42

43 

46 

45 

41 

41 

43

43

min

38 

38 

40 

51 

40 

41 

39 

40 

41 

41

41 

41 

41 

40 

41

39 

41 

41 

39 

41

39 

39 

43 

41 

42

42 

43 

41 

41 

41 

40

41

April

max

43 

43 

42 

48 

47 

45 

46 

47 

49 

49 

47 

49 

47 

45 

49

50 

52 

49 

47 

51

52 

51 

53 

51 

49

47 

46 

47 

49 

48

48

min

40 

41 

41 

42 

43 

41 

40 

39 

41 

41

45 

44

45 

45 

43

43 

44 

45 

45 

42

44 

45 

43 

45 

44

45 

43 

43 

43 

45

43

May

max

48 

51 

51 

51 

51 

51 

54 

50 

54 

50

51 

54 

50 

48 

51

57 

54 

53 

50 

49

48 

53 

56 

58 

58

61 

60 

56 

53 

55 

52

53

min

43 

44

46 

45 

42 

46 

45 

46 

45 

46

46 

46 

46 

46 

45

46 

48 

48 

48 

46

46 

46 

47 

48 

49

49 

49 

51 

47 

47 

5

46
STILLAGUAMISH RIVER BASIN Continued 

NORTH FORK STILLAGUAMISH RIVER NEAR DARRINGTON, WA

LOCATION. Temperature recorder at gaging station at county bridge, 5 miles west of Darringto

DRAINAGE AREA. 39.1 square miles.

RECORDS AVAILABLE. Water temperatures: March 1952 to September 1952.

EXTREMES, 1952. Water temperatures: Maximum, 63"F Aug. 10-12, 1952.

REMARKS. No temperature record Oct. 1 to Mar. 4, 10, 11. Records of discharge for water yea

Temperature (°F) of water, March to September 1952 

/Continuous water-stage recorder with temperature attachmen

Day

1 ...................

2 ..

12 - - ........

18 ...................

14 ... ................

18 - - 

19

21 - 

22

24 -. -..-

27

AQ

29 - 

«1

Average 

October

max mm

November

max min

December

max min

January

max min

February

max min

March

max

41 

41 

41

41 

41

41 

40 

42 

42 

41 

41 

41 

40 

41

42 

43 

42 

42 

42

44 

44 

42 

40 

40 

 *?

41

min

39 

39 

38 

39 

40

39 

39 

39 

39

39 

40 

39 

39 

39

39 

40 

41 

41 

41

41 

41 

40 

39 

40 

39

40

April

max

42 

42 

41 

46 

44 

42 

42 

42 

44 

45

43 

46 

45 

44 

45

47 

46 

45 

43 

45

47 

47 

47 

46 

46

45

44 

44 

45 

44

44

min

40 

40 

40 

41 

41 

40 

39 

39 

40 

40

42 

42 

43 

43 

42

42 

42 

43 

43 

41

42 

43 

43 

43 

43

44 

43 

43 

42 

44

42

Ma

max

45 

46 

47 

47 

47 

47 

49 

47 

49 

47

47 

48 

47 

45 

49

50 

48 

49 

47 

46

47 

49 

50 

50 

50

51 

51 

49 

48 

49 

4fi

48
STILLAGUAMISH RIVEH BASIN Continued 

PILCHUCK CREEK NEAR BRYANT, WASH.

LOCATION. Temperature recorder at gaging station, 500 feet upstream from highway bridge, 2 mil

DRAINAGE AREA.--50.8 square miles.

RECORDS AVAILABLE. Water temperatures: March 1952 to September 1952.

REMARKS. No temperature record Oct. 1 to Mar. 4, July 1 to Sept. 15. Records of discharge for 

in WSP 1246.

Temperature (°F) of water, March to September 1952 

/Continuous water-stage recorder with temperature attachment

Day

1 

31 

Average -

October

max min

November

max min

December

max min

January

max min

February

max min

March

max

39

39 

39 

39 

39 

39

39 

39 

39 

39 

40

40 

40 

40 

39 

39

39 

40 

40 

40 

40 

41 

42 

42 

42 

42 

42

40

min

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

40 

40 

39 

39 

39

39 

39 

40 

40 

39 

39 

41 

42 

42 

42 

41

40

April

max

42 

42 

42 

44 

44

44 

44 

42 

44 

44

44 

45 

45 

44 

44

45 

47 

47 

47 

47

47 

47 

47 

47 

47 

47 

47 

47 

45 

45

45

min

41 

42 

42 

42 

44

44 

42 

42 

42 

43

44 

44 

44 

44 

43

44 

45 

46 

47 

45

46 

47 

46 

47 

47 

47 

47 

44 

44 

45

44

May

max

45 

47 

47 

47 

47

49 

50 

50 

49 

49

49 

52 

52 

50 

49

53 

53 

52 

52 

51

49 

50 

51 

53 

53 

54 

55 

55 

53 

52 

52

51

m
SKAGIT RIVER BASIN 

CASCADE RIVER AT MARBLEMOUNT, WASH.

LOCATION. Temperature recorder at gaging station 2 miles east of Marblemount, Skagit County

DRAINAGE AREA. 180 square miles, approximately.

RECORDS AVAILABLE. Water temperatures: May to September 1952.

EXTREMES, 1952. Water temperatures: Maximum, 57°F July 9, 11-14, 29-31, Aug. 2-5, 9-13, 19

REMARKS. No temperature record Oct. 1 to May 8. Records of discharge for water year Octobe

Temperature (°F) of water, May to September 1952 

/Continuous water-stage recorder with temperature attachm

Day

2

10 - -

11 - ....

15 ... . ..

16 ... . ......

17 . ...........

18

20 - - 

51

22

25

o»

29

31 

October

max min

November

max min

December

max min

January

max min

February

max min

March

max min

April

max min

M

max

4

4

4

4

4

4

4

5

4

4

4

4

4

4

5

5

5

5

5

4

4

4

4

-
UPPER COLUMBIA RIVER BASIN

COLUMBIA RIVER MAIN STEM 

COLUMBIA KIVER AT INTERNATIONAL BOUNDARY

LOCATION. At cableway 2.2 miles downstream from International gaging station, which is 0.5 mile downs

stream from Northport, Stevens County, Wash. 

DRAINAGE AREA. 59,700 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: February 1910-January 1911, November 1951 to September 1952.

Water temperatures: November 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 107 ppm Feb. 21-29; minimum. 80 ppm Aug. 11-20.

Hardness: Maximum, 88 ppm Feb. 11-20, Mar. 1-7, 9-10; minimum, 63 ppm July 11-17, 19-20.

Specific conductance: Maximum daily, 180 micromhos Apr. 6; minimum daily, 132 micromhos Aug. 14.

Water temperatures: Maximum observed, 63 °F Aug. 4, 10, 11, 24; minimum observed, 32°F Jan. 2, 11.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

Portland, Oregon. Records of discharge for water year October 1951 to September 1952 given in WSP 

Chemical analyses, in parte per million, November 1951 to Septemb

Date at collection

HOT. 15-30, 1951 

Nov. 21-30...... 

Dec. 1-10.......

Dec. 11-20...... 

Dec. 21-31 .....

Jan. 1-10, 1952. 

Tan. 11-20......

Jan. 21-24, 26, 

29 ............

Feb. 1-10.......

Feb. 11-20...... 

Feb. 21-29......

Mar. 1-10......

Mar. 11-20..... 

Mar. 21-31.....

Apr. 11-20...... 

Apr. 21-30......

May 11-20......

M« 21-31 ......

Mean 

discharge 

(cf»)

47,330 

45,860 

52,820 

43,480 

37,350

35,710 

38,610

41,950 

38,330 

40,630 

40,660

39,190 

38,120 

39,230 

43,890 

80,290 

110,200

171,200 

207,900 

286.800

Silica 

(SiO.)

7.5 

7.4 

9.3 

7.7 

7.1

7.5 

7.2

7.1 

7.4 

7.9 

8.3

7.3 

6.8 

7.9 

8.8 

9.8 

9.0

7.8 

7.4 

7.0

Iron 

(Fe)

0.02 

.01 

.01 

.01 

.01

.01 

.02

.03 

.02 

.02 

.02

.01 

.02 

.02 

.02 

.02 

.02

.03 

.02 

.02

Calcium 

(Ca)

23 

23 

22 

22 

23

24 

25

24 

25 

25 

25

25 

25 

24 

24 

23 

21

21 

20 

20

Magnesium 

(Mg)

4.9 

5.4 

5.1 

5.2 

5.2

5.2

5.5

5.5 

5.6 

6.2 

6.0

6.1 

6.0 

5.9 

5.7 

5.8 

5.0

4.8 

4.8 

4.7

Sodium 

(Na)

1.8 

1.6 

1.9 

2.2 

1.9

2.0 

2.4

2.3 

2.2 

2.4 

2.3

2.1 

2.1 

2.0 

2.6 

2.6 

2.2

2.1 

1.9 

2.0

Potassium 

(K)

3.0 

3.8 

3.5 

3.7 

3.0

2.6 

.9

.8 

.7 

.9 

1.1

1.0 

.9 

.9 

1.0 

1.0 

1.0

.9 

.8 

.8

Bicarbonate 

(HCO.)

80 

81 

82 

81 

84

84 

84

83 

84 

87 

89

88 

88 

85 

86 

82 

77

77 

76 

76

SuUate 

(S04)

15 

16 

15 

16 

16

17 

18

17 

18 

18 

19

19 

19 

19 

17 

16 

13

12 

11 

13

Chloride 

(Cl)

0.5 

1.0 

.8 

1.5 

1.1

1.0 

.8

1.0 

.9 

.8 

.9

.7 

.8 

.8 

.8 

.9 

.6

.9 

.8 

.7

Fluoride 

(F)

0.2 

.1 

.2 

.3 

.3

.3 

.2

.2 

.2 

.2 

.3

.2 

.2 

.3 

.1 

.1 

.1

.1 

.1 

.1

Nitrate 

(NO,)

0.6 

1.3 

.5 

.7 

.3

.3 

1.0

.8 

.8 

.6 

.5

.5 

.5 

.5 

.7 

1.1 

.6

1.1 

1.0 

1.0

Boron 

(B)

0.08 

.09

.03 

.02 

.03

.06 

.02

D

(re

Parts 

per 

million

10

9

9

9

10

10

10

10

10

10

10

10

10

10

10

10

9

9

8
Jm» 1-10, 1952 . 

TOM 11-20......

Tine 21-30. .....

July 1-10.......

July 11-20......

July 21-31 ......

Aug. 11-20...... 

Aug. 21-31.....

Sept. 1-10......

Sept. 11-20..... 

Sept. 21-30.....

Weighted average

373,700

212,300

217,800

148,000

93,870 

78,140

55,010 

53,010

a 101, 900

6.4 

7.2

6.5

5.4

5.9 

5.3

4.9

4.8 

7.0

6.9

.03

.03

.02

.01

.01

.01 

.11

.02

.02 

.03

0.02

30 

20

19

19

21

19 

20

21 

22

21

5.1 

4.7

4.6

A 0

4.6 

4.7

4.6

4.7 

4.9

4.9

1.6

1.3

1.2 

1.3

1.4 

1.6

1.7

.9

.8

.7 

.7

.6 

1.1

1.0

74 

74

72

72

70

72

70 

72

77 

80

76

13

13 

13

13

13 

15

13

.7

.6

1.0

1.8 

1.5

.5 

.5

0.9

.1

.2

.2

.1 

.1

.3

.3 

.3

0.2

.9

.6 

.6

.9

.7

0.8

.06

.05

8

9

a Bepreaenta 91 percent of runoff for water year October 1951 to September 1952.
288 PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER BASIN

COLUMBIA RIVER MAIN STEM Continued 

COLUMBIA RIVER AT INTERNATIONAL BOUNDARY Continued 

Temperature (°F) of water, November 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct. Nov.

_

_

__

._

44

45

44

43

44

43

42

43

42

43

42

43

43

43

Dec.

44

42

43

42

42

42

40

38

38

39

39

39

38

38

38

38

37

35

34

35

33

34

33

34

34

34

34

33

38

Jan.

32

33

33

34

33

34

34

34

34

32

34

34

34

34

34

34

34

35

34

34

34

34

--

35

--

Feb.

37

37

37

_

37

37

_

37

38

37

37

38

38

37

37

37

37

37

36

36

36

35

35

36

37

37

37

38

37

Mar.

37

38

38

38

38

38

38

38

39

_

39

39

39

39

39

39

40

39

40

_

39

39

41

41

42

42

42

42

42

42

40

Apr.

_

41

40

41

42

42

42

42

42

43

43

44

44

44

44

44

45

46

44

45

45

45

46

46

46

46

46

45

44

Hay

45

45

45

45

45

45

45

46

47

48

47

47

47

48

48

48

49

49

49

49

49

50

50

SO

50

51

51

51

50

48

June

50

50

52

52

52

52

52

53

54

53

52

51

51

52

51

51

52

52

53

54

53

53

53

54

54

55

54

54

--

52

July

54

54

55

54

54

_

56

56

57

57

59

58

58

57

58

59

60

59

59

59

59

59

60

60

60

60

60

60

61

61

58

Aug.

61

62

63

62

61

61

62

63

63

62

62

61

62

62

62

62

62

62

61

61

61

63

62

62

62

62

62

61

61

62

Sept

_

62

62

62

61

62

60

61

60

60

61

60

60

60

61

61

61

61

61

61

61

61

61

61

61

61

60

~

61
COLUMBIA RIVER MAIN STEM Continued 

COLUMBIA RIVER AT GRAND COULEE MM, WASH.

LOCATION. At Grand Coulee Dam, Grant-Okanogan County line, 2,500 feet upstream from gaging station, wh

DRAINAGE AREA. 74,100 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses: November 1950 to September 1952.

Water temperatures: November 1950 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 110 ppm Apr. 1-10, 11-20; minimum, 80 ppm Sept. 1-10, 1

Specific conductance: Maximum daily, 183 micromhos Apr. 13, 21; minimum daily, 128 micromhos May 31.

Water temperatures: Maximum observed, 64°F on several days during October; minimum observed, 35 F Mar

EXTREMES, 1950-52. Dissolved solids: Maximum, 110 ppm Apr. 1-10, 11-20, 1952; minimum, 80 ppm Sept. 1

Specific conductance: Maximum daily, 183 micromhos Apr. 13, 21, 1952; minimum daily, 128 micromhos Ma

Water temperatures: Maximum observed, 65°F Aug. 19, 1951; minimum observed, 35°F Mar. 3-4, 1952.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

at Portland, Oregon. Records of discharge for water year October 1951 to September 1952 given in WS

Chemical analyses, in parts per million, water year October 1951 to Septem

Date of collection

Oct. 1-10, 1951 . .

Dec 1-10

Jan. 1-10, 1952 . .

Feb. 21-29 .....

Mar. 21-31 ......

Mean 

discharge 

(els)

77,830 

74,350 

70,850 

64,440 

59, 590 

58,090

64,010 

63,240 

56,080 

70, 100 

69,340 

70,450

58,830 

64,160 

67,770 

73,190 

73,390 

75.650

Silica 

(SiO,)

6.4 

5.5 

5.3 

6.7 

6.3 

6.8

7.0 

6.9

7.9

7.9

Iron 

(Fe)

0.01 

.01 

.01 

.01 

.03 

.01

.01

--

Calcium 

(Ca)

20 

21 

21 

21 

21 

20

20 

22

23

23

Magnesium 

(Mg)

4.9 

5.0 

5.1 

5.2 

5.2 

5.9

5.9 

5.4

6.2

5.9

Sodium 

(Na)

.5 

.7 

.7 

.7 

.8 

.8

4 

2

1

Potassium 

(K)

3.0 

3.4 

3.2 

3.4 

1.8 

1.8

3 

0

9

Bicarbonate 

(HCO.)

77 

78 

81 

79 

80 

79

80 

81

85 

86

SuUate 

<S04 )

12 

13 

13 

13 

12 

12

13 

13

15 

16

Chloride 

(Cl)

.1 

.2 

.1 

.0 

.9 

.5

2.9 

.8

.9 

1.0

Fluoride 

(F)

0.1 

.1 

.1 

.1 

.2 

.2

Nitrate 

(NOS)

0.5 

.5 

.3 

.3 

.4 

.5

.4 

.6

.7 

.7

Boron 

(B)

0.07 

.08

.08 

.04

Di

(resi

Parts 

per 

million

85 

85 

86 

88 

94 

96

95 

97 

94 

104 

96 

95

98 

101 

100 

103 

105 

107
COLUMBIA RIVER MAIN STEM Continued 

COLUMBIA RIVER AT GRAND COUiEE DAM, WASH. Continued 

Chemical analyses, In parts per million, water year October 1951 to September 1

Date of collection

Apr. 1-10, 1952.. 

Apr. 11-20 ......

May 21 -SI.......

Aug. 11-20 ......

Sept 1-10

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfs)

74,990 

73,540 

72,900 

185,200 

267,500 

324,700

279,700 

260,300 

230,500 

235,000

192,300 

152,300 

119,800 

94,670 

85,620

62,880 

57,870 

55,370

112,400

SUica 

(SiOJ

10 

9.1

8.7 

7.6 

7.6 

6.8

6.6 

6.7

5.9 

5.9 

6.2

«

Iron 

(Fe)

--

Calcium 

(Ca)

24 

20 

23 

19 

19

19 

18 

18 

18

18 

20

20 

19 

20

Magnesium 

(Mg)

5.7 

6.4 

5.5 

4.4 

4.3

4.5 

4.5 

4.6 

4.8

4.9 

4.7

4.6 

4.5 

4.5

Sodium 

(Ha)

4 

7 

4 

2 

2

3 

5

4 

2

2 

1

2 

1

Potassium 

(K)

5 

7 

1 

8 

7

1

4 

3 

9

4

- 

1

9 

8

4

Bicarbonate 

(HCO.)

88 

86 

83 

70 

69

75 

77 

74 

73

71

71

72 

72 

71

Sulfate 

(S04)

18 

19 

17 

12 

12

9.1 

10 

11 

9.3

9.5

11

10 

11 

11

Chloride 

(CD

1.0 

1.1 

1.5 

.9 

.9

.9 

.8 

.5 

.6

1.0

.6

.8

Fluoride 

(F)

--

«

-.

Nitrate 

(NO,)

1.2 

1.5 

1.3 

.7 

.8

.6 

.6 

.5 

.6

1.0

.6

.4

.8

Boron 

(B)

0.06

~

Diss

(resid

Parts 

per 

million

110 

110 

a 108 

a 105 

91 

a 83

83 

82 

63 

82

82 

84 

84 

82 

82

80 

80 

81

90

a Stun of determined constituents.
COLUMBIA RIVER MAIN STEM 

COLUMBIA RIVER MAIN STEM Continued 

COLOMBIA RIVER AT GRAND COULEE DAM, WASH. Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 10:00 a. mj

291

Day

1

2

3

4

5

6

7

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

Oct.

64

64

64

64

64

64

63

63

63

63

63

63

63

63

63

63

63

62

62

62

62

62

62

61

61

61

61

61

60

60

62

Nov.

60

60

60

60

59

59

59

58

58

58

57

57

57

56

56

56

55

55

54

54

54

54

54

53

53

53

54

52

52

51

~

56

Dec.

51

51

51

51

50

50

50

50

50

49

49

48

47

48

48

48

48

48

48

48

48

48

48

47

47

46

47

46

46

46

46

48

Jan.

45

45

45

45

45

45

44

44

44

43

43

43

42

42

42

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

42

Feb.

39

39

40

39

39

38

38

38

37

37

36

36

36

36

36

36

36

36

37

37

37

37

37

37

37

37

36

36

36

~

37

Mar.

36

36

35

35

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

37

37

37

37

37

37

37

38

38

38

38

39

37

Apr.

39

39

39

39

39

39

39

39

39

39

39

40

40

40

40

41

41

42

42

42

42

42

43

43

43

44

44

45

45

~

41

May

45

45

45

45

45

45

45

45

45

46

46

47

47

48

48

48

48

49

49

49

49

50

51

51

51

51

51

51

51

52

52

48

June

52

52

52

52

52

52

52

51

51

51

51

51

51

51

51

51

SI

51

51

51

52

52

52

53

53

53

53

53

54

54

52

July

54

55

55

55

55

55

54

54

54

54

55

55

55

55

56

55

55

56

56

56

56

56

56

56

56

56

56

56

57

58

58

55

Aug.

59

59

59

59

59

_

59

60

59

59

59

59

59

59

59

59

59

59

60

60

60

60

60

60

61

61

60

60

59

Sept

60

60

60

60

60

60

60

60

61

61

61

61

61

61

61

61

60

60

61

61

61

61

61

62

62

62

62

62

62

61
U)LUMBIA RIVER MAIN STEM Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN COLUMBIA RIVER BASIN IN 

Chemical analyses, In parts per million, water year October 1951 to Sep

Date of collection

Mean 

discharge 

(cfs)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodiuzn 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(S04)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(N0a)

Bo

ron 

(B)

COLUMBIA RIVER AT NORTHPORT

Nov. 15, 1951 ......

June 5, 1952 ......

6.3

5.2

23 5.5 80

77

2.5

0.2 
PART 13. SNAKE RIVER BASIN

SNAKE RIVER MAIN STEM 

SNAKE RIVER AT KING HILL, IDAHO

LOCATION.--At county highway bridge about 400 yards downstream from gaging station, which is 300 feet e

20 miles downstream from Big Wood (Malad) River. 

DRAINAGE AREA. 35,800 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: March 1951 to September 1952.

Water temperatures: March 1951 to September 1952. 

EXTREMES 1951-52. Dissolved solids: Maximum, 359 ppm Sept. 1-10; minimum, 252 ppm May l-iu.

Hardness: Maximum, 209 ppm Feb. 11-20; minimum, 166 ppm May 1-10;

Specific

Water t 

EXTREMES,

H&X*dfi6Sss I maAjLiiiuia. C,A.\J FV" ovjiii . *..». * **, -*.*»«.»., *»*»* **»***«, w ft"" *- j -, - .

Specific conductance: Maximum daily, 564 micromhos Aug. 21, 1951; minimum daily, 394 micromhos May 7

Water temperatures: Maximum observed, 69°F on several days during July and August 1951. 

IARKS _Values reported for dissolved solids are residues on evaporation. Records of specific conduc

Portland, Oregon. Records of discharge for water year October 1951 to September 1952 given in WSP 1

Chemical analyses, in parts per million, water year October 1951 to Sep

Date of collection

Oct. 1-10, 1951... 

Oct. 11-20. .......

Oct. 21-31 .......

Nov. 1-10 ........

Nov. 11-20 .......

Nov. 21-30 .......

Dec. 1-10 ........

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 1-10, 1952... 

Jan. 11-20 .......

Jan. 21-31 .......

Feb. 1-10 ........

Feb. 11-20 .......

Feb. 21-29 .......

Mar. 1-10 .......

Mar. 11-20.......

Mar. 21-31.......

Mean 

discharge 

(cfs)

12, 680 

13,910 

13,000 

12,970 

12, 550 

13,020

11,910 

12, 550 

12,700 

12, 350 

12, 920 

14, 130

17, 030 

17,730 

17,760 

17, 810 

18,780 

20,400

Silica 

(SiOa)

36 

33 

32 

37 

37 

37

36 

36 

35 

34 

35 

30

30 

30 

29 

29 

28 

27

Iron 

(Fe)

0.03 

.01 

.01 

.04 

,05 

.04

.01 

.02 

.02 

.03 

.02 

.02

.05 

.03 

.02 

.03 

.03 

.04

Calcium 

(Ca)

47 

48 

48 

48 

49 

49

48 

50 

50 

49 

49 

49

48 

51 

52 

50 

50 

47

Magnesium 

(Mg)

21 

20 

20 

20 

20 

20

20 

20 

20 

20 

19 

19

18 

20 

19 

20 

20 

17

Sodium 

(Na)

34 

32 

33 

33 

33 

32

33 

33 

32 

32 

30 

30

28 

27 

27 

30 

26 

26

Potassium 

(K)

6.8 

6.2 

6.4 

5.1 

5.1 

5.3

5.6 

5.6 

5.4 

4.5 

4.5 

4.4

4.5 

3.4 

3.6 

3.6 

3.6 

4.2

Bicarbonate 

(HCO,)

224 

226 

222 

218 

218 

218

217 

219 

217 

218 

215 

211

210 

214 

218 

216 

214 

200

Sulfate 

(S04)

59 

57 

57 

57 

57 

55

56 

57 

56 

54 

52 

50

49 

51 

51 

52 

49 

47

Chloride 

(Cl)

26 

26 

26 

26 

26 

26

26 

26 

26 

26 

26 

26

25 

26 

26 

26 

24 

22

Fluoride 

(F)

0.5 

.5 

.6 

.6 

.5 

.6

.6 

.6 

.6 

.5 

.6 

.5

.7 

.6 

.7 

.6 

.7 

.7

Nitrate 

(NO,)

3.1 

2.6 

2.8 

3.8 

4.1 

3.9

3.9 

3.6 

3.0 

3.6 

3.9 

3.0

3.0 

2.8 

2.5 

2.7 

2.2 

2.2

Boron 

(B)

0.19 

.17

.16 

.12

.10 

.10

D

(re

Part

per 

million

336 

324 

326 

329 

331 

326

33

329 

328 

334 

327 

323

312 

317 

322 

316 

310 

292
SHAKE RIVER MAIN STEM Continued 

SNAKE RIVER AT KING HILL, IDAHO Continued 

Chemical analyses, In parte per million, water year October 1951 to September 

Date of collection

Apr. 1-10, 1952.. 

Apr. 11-20 ......

Apr. 21-22, 29-30

May 11-20.......

June 1-10 .......

June 11 -20 ......

July 1-10........

July 11-20 .......

July 21-31.......

Aug. 1-10 ......

Aug. 11-20 ......

Aug. 21-31 ......

Sept 1-10.......

Sept. 21-30 ......

Weighted average

Mean 

discharge 

(cfs)

20,920 

21,750 

21,650 

22,200 

17, 230 

13,770

13, 820 

16, 190 

12, 820 

11,680 

8,170 

8,301

8,619 

8,513 

8,543 

8,935 

9,374 

9,245

a 13, 900

Silica 

(SiOJ

27 

27 

26 

26 

27 

29

26 

25 

32 

28 

37 

36

39 

41 

41 

37 

33 

35

31

Iron 

(Fe)

0.07 

.09 

.08 

.07 

.06 

.06

.05 

.08 

.08 

.06 

.14 

.14

.05 

.04 

.04 

.02 

.02 

.02

0.05

Calcium 

(Ca)

44 

44

44 

40 

41 

43

42 

43 

44 

42 

44 

43

45 

46 

 46 

46 

46 

46

46

Magnesium 

(Mg)

16 

17 

15 

16 

16 

17

17 

16 

18 

17 

20 

20

21 

21 

22 

21 

21 

22

19

Sodium 

(Na)

25 

25 

23 

22 

23 

26

25 

24 

28 

26 

33 

34

35 

35 

35 

36 

37 

38

29

Potassium 

(K)

4.0 

4.1 

3.5 

3.6 

3.5 

3.9

3.6 

3.8 

3.9 

4.0 

5.2 

5.0

4.6 

4.7 

4.7 

4.7 

4.6 

4.7

4.5

Bicarbonate 

(HCO.)

192 

192 

183 

174 

180 

194

186 

194 

208 

204 

218 

217

220 

221 

234 

224 

224 

227

208

SuUate 

(SO,)

45 

44 

40 

39 

40 

46

43 

41 

48 

42 

44 

57

55 

57 

55 

56 

59 

59

50

Chloride 

(Cl)

22 

22 

20 

20 

20 

23

20 

20 

23 

21 

26 

27

29 

29 

28 

27 

28 

27

24

Fluoride 

(F)

0.7 

.7

.5 

.5 

.5

.5 

.4 

.5 

.5 

.4 

.5

.6 

.7 

.6 

.5 

.5 

.6

0.6

Nitrate 

(NO,)

1.8 

1.9 

3.2 

2.4 

2.6 

2.4

2.3 

2.4 

2.9 

2.9 

4.1 

2.8

3.7 

3.4 

3.9 

3.3 

2.9 

2.8

2.9

Boron 

(B)

0.09 

.11

.10 

.10

.05 

.08

--

D

(re

Parts 

per 

million

278 

278 

269 

252 

262 

282

270 

270 

304 

286 

327 

333

336 

342 

342 

359 

341 

342

309

a Represents 97percent of runoff for water year October 1951 to September 1952.
SNAKE RIVER MAIN STEM 

SNAKE RIVER MAIN STEM Continued 

SNAKE RIVER AT KING HILL, IDAHO. Continued

Temperature (°f) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 11:45 a. m.7

295

Day

1

2

3

4

5

6

7

8

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

60

60

59

57

58

58

58

59

59

59

59

57

58

57

57

56

55

54

55

55

53

54

53

52

54

54

53

53

53

53

51

56

Nov.

50

49

50

50

50

50

51

52

52

53

52

51

51

51

50

48

47

47

47

48

49

49

49

49

47

48

48

49

50

50

50

Dec.

50

48

47

47

47

47

45

44

43

42

43

45

44

44

44

46

45

44

45

44

45

46

44

44

42

44

45

46

47

46

44

45

Jan.

43

42

41

41

41

41

42

43

43

43

44

45

46

45

46

45

42

42

42

43

43

43

44

45

45

46

46

45

44

43

45

44

Feb.

45

45

45

45

45

45

45

44

43

44

44

43

43

42

41

42

42

44

42

42

43

42

42

43

42

43

43

43

43

42

liar.

43

44

43

43

44

44

44

45

--

44

45

45

44

43

44

45

46

46

46

46

46

45

46

47

48

48

49

49

49

49

46

Apr.

49

49

49

50

51

52

52

50

50

51

52

53

53

52

51

53

54

55

54

53

54

55

_.

_

_

57

57

May

58

59

59

59

59

59

58

57

57

58

58

59

60

60

57

58

59

60

61

60

59

59

60

63

63

63

63

65

62

62

60

Jane

63

64

65

66

66

67

66

67

68

65

65

63

63

65

62

62

63

65

65

65

63

64

64

63

63

64

62

65

64

64

--

64

July

65

64

65

67

67

65

65

65

66

67

67

65

66

67

67

67

66

65

65

65

65

65

66

67

67

67

68

68

68

68

68

66

Aug.

68

68

68

68

68

67

67

67

67

67

67

67

68

67

67

65

_.

_

65

64

65

65

65

66

65

64

64

63

64

63

62

66

Sept.

62

62

64

64

64

63

64

63

63

63

63

61

60

60

60

60

62

63

62

63

62

63

63

62

62

63

63

61

61

61

--

62
BOISE RIVER BASIN 

BOISE RIVER AT NOTUS, IDAHO

LOCATION. At steel highway bridge, 360 yards downstream from gaging station which is a quarter of a mil

west of CaIdwell.

DRAINAGE AREA. 3,820 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: January 1939 to January 1940, November 1950 to September 1952.

Water temperatures: November 1950 to September 1952.

Sediment records: January 1939 to June 1940. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 481 ppm Aug. 11-20; minimum, 77 ppm May 1-10.

Hardness: Maximum, 190 ppm Nov. 11-20; minimum, 36 ppm Apr. 21-30, May 1-10, 11-20.

Specific conductance: Maximum daily, 802 micromhos Aug. 20; minimum daily, 81.7 micrombos Apr. 27.

Water temperatures: Maximum observed, 85°F July 10; minimum observed, 35 F Jan. 18. 

EXTREMES, 1939-40, 1950-52. Dissolved solids: Maximum, 914 ppm Aug. 21-31, 1939; minimum, 77 ppm May 1

Hardness: Maximum, 284 ppm July 21-31, 1939; minimum, 36 ppm Apr. 21-30, May 1-10, 11-20, 1952.

Specific conductance: Maximum daily, 1,390 micromhos Aug. 21-31, 1939; minimum daily, 81.7 micromhos 

Water temperatures (1950-52): Maximum observed, 85*F on several days during summer months; minimum ob

Sediment loads (1939-40): Maximum, 8,000 tons Apr. 2, 1939; minimum, 0.3 ton Aug. 3, 1939.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

Salt Lake City, Utah. Records of discharge for water year October 1951 to September 1952 given in WS

Chemical analyses, in parts per million, water year October 1951 to Septemb

Date of collection

Oct. 1-10, 1951... 

Oct. 11-20 .......

Oct. 21-31........

Nov. 1-10........

Nov. 11-20.......

Nov. 21-29.......

Nov. 30, Dec. 1-11 

Dec. 12-20.......

Dec. 21, 25-31 . . . 

Dec. 22-24.......

Jan. 1-10, 1952 .. 

Jan. 11-20 .......

Jan. 21-27 .......

Jan. 28-31 .......

Feb. 8-10........

Feb. 11-20 ......

Feb. 21-29.......

Mar. 1-10. .......

Mar. 11-20 ......

Mar. 21-31 ......

Mean 

discharge 

(cfs)

793 

975 

908 

776 

632 

600 

1,039

1,821 

2,758 

1,496 

3,592 

3,599 

3,770 

1,859

1,426 

4,010 

4,315 

3,988 

3,872 

4,492 

6.169

Silica 

(SiO.)

34 

37 

36 

37 

41 

38 

33

26 

20 

35 

17 

17 

18 

30

29 

20 

18 

16 

18 

17 

18

Iron 

(Fe)

0.03 

.03 

.02 

.03 

.04 

.07 

.06

.07 

.02 

.02 

.02 

.02 

.02 

.05

.10 

.06 

.04 

.04 

.04 

.06 

.09

Calcium 

(Ca)

39 

46 

46 

48 

53 

50 

43

29 

21 

42 

21 

21 

22 

39

34 

24 

16 

17 

19 

17 

15

Magnesium 

(Mg)

11 

13 

13 

13 

14 

14 

11

7.2 

4.4 

11 

5.1 

4.7 

4.4 

11

10 

2.5 

4.9 

5.0 

4.9 

3.8 

3.5

Sodium 

(Na)

60 

67 

68 

71 

77 

70 

50

32 

22

54 

17 

17 

17 

50

40 

15 

15 

15 

16 

15 

12

Potassium 

(K)

6.1 

6.4 

5.8 

7.0 

7.9 

5.3 

5.3

4.0 

4.8 

3.4 

2.4 

2.6 

2.9 

4.6

3.3 

1.0 

1.2 

1.2 

1.2 

1.5 

1.5

Bicarbonate 

(HCO,)

220 

246 

252 

260 

284 

265 

215

140 

103 

214 

95 

94 

98 

192

169 

85 

82 

82 

84 

80 

70

Sulfate 

(SO,)

70 

85 

87 

92 

99 

92 

66

41 

26 

70 

21 

21 

21 

66

47 

18 

18 

17 

19 

17 

13

Chloride 

(Cl)

18 

19 

20 

20 

23 

20 

15

10 

6.2 

16 

5.0 

4.8 

5.0 

14

13 

5.0 

5.0 

4.5 

5.5 

3.8 

3.0

Fluoride 

(F)

0.6 

.5 

.4 

.4 

.4 

.6 

.5

.5 

.3 

.6 

.3 

.3 

.3

.5 

.4 

.4 

.4 

.4 

.4 

.4

Nitrate 

(NO,)

3.4 

2.9 

3.1 

3.1 

1.4 

1.3 

1.9

2.7 

1.1 

3.5 

2.2 

2.4 

2.6 

5.6

3.5 

3.2 

2.4 

2.3 

2.4 

2.7 

2.8

Boron 

(B)

0.24 

.28

.14 

.06

.05 

.09

Dis

(resi

Parts 

per 

million

338 

388 

395 

410 

444 

420 

330

217 

156 

346 

136 

134 

140 

308

265 

123 

119 

120 

125 

122 

110
Apr. 1-10, 1952 .. 

Apr. 11-20.......

Apr. 21-30.......

May 11-20 .......

June 12-18 .......

June 19-30 .......

July 1-9. .........

July 21-30 .......

July 31, Aug. 1-10

Sept. 21-30. ......

Weighted average

5,397 

7,373

6,754

6,444

3,804

2,243

592

274

163 

134

373

790

478

2,525

20 

18

16

15

18

22

25

30

37

34

34

20

.15 

.24

.28

.11

.06

.11

.06

.02

0.10

14 

11

7.8

15

29

37

42 

48

43

41

42

18

3.9 

3.5

4.0

3.7

2.7

2.7

3.5

4.3

6.8

9.0

12

10

14 

15

13

12

14

5.0

13 

8.5

6.6

6.8

7.4

10

11

18

31

46

70

65

88 

95

94

77

19

1.5 

1.6

1.5

1.5

1.2

2.3

2.9

3.2

4.2

4.5

5.0 

4.6

4.8

4.7

4.7

2.2

68 

52

46

48

48

61

84

126

169

221

214

264 

278

250

240

256

90

IS

9.7

6.7

6.8

7.2

11

12

20

35

50

83

74

99 

111

89

92

22

3.2 

2.3

1.7

1.7

2.1

3.0

3.2

5.0

9.5

13

22

20

29 

31

33

26

22

24

5.5

.4 

.4

.3

.3

.3

.3

.3

.4

.3

.4

.2

.5

.6 

.6

.6

.6

.5

.4

0.4

4.0 

3.0

1.4

1.4

1.7

1.7

1.9

2.5

3.2

2.9

4.0

4.0

2.7 

2.9

3.1

2.6

3.3

3.1

2.4

.06

.08

.07_

.16

.10

.17-

114 

97

84

77

78

92

94

131

201

263

400

341

454 

481

477

417

390

426

142
298 SHAKE RIVER BASIN

BOISE RIVER BASIN Continued 

BOISE RIVER AT NOTUS, IDAHO,--Continued

Temperature (°F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at 4:00 p. mj

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

IB

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

63

61

61

55

60

60

62

63

64

58

56

55

55

55

58

58

56

55

55

55

55

54

54

54

53

53

54

55

55

53

53

57

Nov.

50

45

45

50

46

50

50

48

48

50

50

50

48

48

48

46

45

45

45

58

58

50

47

48

56

56

50

50

50

46

--

49

Dec.

42

42

42

40

42

41

41

40

40

40

41

40

40

37

39

39

39

41

40

41

41

39

39

38

38

38

40

40

40

40

46

40

Jan.

38

38

36

36

38

37

37

40

38

42

41

42

40

40

40

43

42

35

37

40

40

40

40

45

43

40

40

43

43

45

--

50

Feb.

44

45

48

48

48

45

45

41

39

39

39

42

41

42

42

41

41

40

42

42

39

39

40

40

40

41

41

43

_

--

42

Mar.

41

41

42

41

42

42

45

45

45

40

40

43

43

44

44

44

45

44

41

42

43

43

42

45

50

50

45

45

45

45

50

44

Apr.

50

50

50

52

52

55

50

50

51

50

50

54

54

54

54

55

55

55

52

52

55

55

55

_

56

58

58

56

56

57

--

53

May

55

55

58

58

59

59

55

57

58

58

58

59

59

59

59

60

58

58

60

60

60

59

60

60

62

62

62

60

60

60

62

59

June

62

66

66

65

65

65

66

66

62

62

_.

64

63

63

65

65

67

67

69

70

67

67

65

65

65

70

66

66

68

68

66

July

70

70

76

78

70

..

75

78

80

85

80

80

80

80

80

80

77

78

75

76

78

80

80

81

81

80

82

82

80

78

80

78

Aug.

80

80

80

80

80

79

78

78

80

78

78

80

80

80

80

80

80

80

80

80

80

80

80

76

76

75

75

73

73

70

70

78

Sept.

70

70

70

70

70

65

67

67

.-

66

65

65

65

65

66

66

68

68

68

68

68

66

66

65

65

64

63

63

63

63

66
SNAKE RIVER MAIN STEM Continued 

SNAKE RIVER NEAR CLARKSTON, WASH.

LOCATION. One mile downstream from gaging station, 1 mile upstream from Alpowa Creek, 8 miles downstrea

upstream from mouth.

DRAINAGE AREA. 103,200 square miles, approximately (above gaging station). 

RECORDS AVAILABLE. Chemical analyses, November 1951 to September 1952.

Water temperatures: November 1951 to September 1952.

EXTREMES, 1951-52. Dissolved solids: Maximum, 283 ppm Sept. 21-30; minimum, 96 ppm May 21-31. 

Hardness: Maximum, 152 ppm Sept. 21-30; minimum, 51 ppm June 1-10.

Specific conductance: Maximum daily, 463 micromhos Nov. 20; minimum daily, 118 micromhos May 28. 

Water temperatures: Maximum observed, 73*F Aug. 8-11, 14; minimum observed, 32 °T Jan. 14.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduct

fice at Portland, Oregon. Records of discharge for gaging station near Clarkston for water year Octo

No appreciable inflow between gaging station and sampling point except during periods of heavy local 

Chemical analyses, in parts per million, water year November 1951 to Septe

Date of collection

Nov. 14, 16-7, 19-20,

Nov. 21, 26-29 ..

Dec. 12-15, 17... 

Jan. 4-10, 1952..

Feb. 1-10

Feb. 21-29

Mar 1-10 ....

Apr 1-10 ....

May 11-20.......

May 21-31.......

June 21-30.......

Mean

discharge 

(cfa)

30,780 

31,620 

44,540 

32,960

29,860 

31,610 

33,460 

45,070 

36,820 

37,240

35,870 

46,810 

75,750 

104,510 

146,100 

194,500

183,600 

196,700 

193,300 

155,500 

104,940 

84.330

Silica 

(SK>.)

35 

30 

30 

34

29 

27 

27 

27 

27 

26

26 

25 

25 

25 

24 

23

18 

19 

16 

15 

20 

19

Iron 

(Fe)

0.14

.02 

.02 

.04 

.20 

.14 

.06

.04 

.06 

.04 

.04 

.26 

.23

.16 

.14 

.08 

.06 

.04 

.04

Calcium 

(Ca)

37 

34 

32 

37

34 

34 

34 

29 

30 

34

35 

34 

28 

22 

21 

18

16 

15 

14 

14 

18 

18

Magnesium 

(Mg)

14 

12 

11 

12

11 

12 

12 

11 

10 

12

12 

12 

9.2 

7.5 

8.3 

6.8

5.8 

4.9 

4.2 

3.9 

5.6 

5.6

Sodium 

(Na)

29 

27 

24 

27

26 

26 

25 

22 

22 

23

25 

24 

19 

15 

15 

12

10 

9.3 

8.8 

9.5 

13 

13

Potassium 

(K)

8.1 

5.1 

5.3 

8.8

6.4 

3.0 

3.0 

3.2 

3.1 

3.0

3.2 

3.2 

3.2 

2.7 

2.6 

2.4

1.8 

2.0 

1.4 

1.6 

2.4 

2.0

Bicarbonate 

(HCO.)

190 

158 

147 

177

151 

151 

152 

132 

134 

151

155 

151 

124 

100 

97 

83

75 

67 

60 

63 

82 

86

Sulfate 

(S04)

38 

40 

37 

36

40 

41 

40 

34 

36 

39

40 

38 

29 

22 

19 

15

13 

13 

11 

12 

18 

19

Chloride 

(CD

14 

15 

13 

14

16 

15 

15 

12 

13 

15

16 

14 

11 

8.0 

7.4 

6.1

5.4 

4.9 

4.0 

4.7 

7.0 

6.2

Fluoride 

(F)

0.5 

.5 

.5 

.4

.3

.5 

.5 

.5 

.5 

.5

.6 

.6 

.5 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4 

.4

Nitrate 

(NO,)

3.4 

2.5 

2.7 

3.2

1.8 

2.8 

3.0 

3.4 

3.0 

2.7

2.6 

2.8 

3.5 

3.1 

2.5 

1.7

1.4 

1.7 

.9 

1.1 

.8 

.8

Boron 

(B)

0.24 

.13 

.08 

.06

.06 

-.06

.03 

.04

Di

(res

Parts 

per 

million

a 271 

a 244 

225 

a 258

231 

236 

235 

212 

215 

231

240 

236 

197 

160 

162 

137

123 

113 

96 

97 

128 

127

a Sum of determined constituents.
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER NEAR CLARKSTON, WASH. Continued 

Chemical analyses, in parts per million,water year November 1951 to September 

Date of collection

July 1-10, 1952 ..

Sept. 21-30......

Weighted average

Mean 

discharge 

(cfe)

70, 880 

42,250 

30,310 

25, 500 

23,230 

21,140

21,690 

23,070 

21,700

b71,700

Silica 

(SiO,)

20 

18 

20 

24 

27 

32

27 

30 

34

22

Iron 

(Fe)

0.03 

.04 

.07 

.04 

.03 

.03

.03 

.02 

.04

0.11

Calcium 

(Ca)

21 

21 

25 

30 

32 

33

34 

36 

38

22

Magnesium 

(Mg)

7.1 

6.6 

8.7 

11 

12 

13

13 

14 

14

7.5

Sodium 

(Na)

15 

16 

24 

27 

29 

31

33 

35 

34

16

Potassium 

(K)

2.8 

2.8 

3.4 

4.4 

4.0 

3.9

4.7 

4.4 

3.9

2.6

Bicarbonate 

(HCOj)

104 

100 

120 

150 

166 

178

176 

194 

203

100

Sulfate 

(S04)

23 

24 

32 

38 

39 

41

45 

46 

44

22

Chloride 

(CD

9.0 

8.5 

12 

13 

14 

15

16 

15 

15

8.3

Fluoride 

(F)

0.4 

.4

.5 

.5 

.5 

.5

.5 

.5 

.6

0.5

Nitrate 

(NO,)

0.6 

.9 

.9 

1.1 

1.6 

1.5

1.6 

1.8 

2.0

1.8

Boron 

(B)

0.07 

.08

.11

Di

(res

Parts 

per 

million

154 

149 

185 

217 

237 

254

265 

276 

283

157

b Represents 90 percent of runoff for water year October 1951 to September 1952.
SNAKE RIVER MAIN STEM 301

SNAKE KIVEK MAIN STEM Continued

SNAKE RIVER NEAR CLARKSTON, WASH. Continued

Temperature (°F) of water, November 1951 to September 1952

Day

1

2

3

4

5

6

7

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

Oct. Nov.

~

43

~

42

42

40

41

40

~

43

43

38

45

Dec.

40

37

35

39

40

39

39

..

38

39

39

40

42

~

_

_

~

--

Jan.

..

35

35

36

35

36

35

36

35

37

38

32

38

37

37

36

36

35

37

34

34

35

36

37

37

38

38

39

39

36

Feb.

39

39

39

40

38

38

39

38

39

39

38

38

38

37

37

37

37

37

37

37

_

36

36

37

37

38

39

38

38

Mar.

38

38

39

39

39

39

39

40

40

41

42

42

42

42

42

43

43

43

42

43

43

43

43

46

44

45

46

46

46

46

45

42

Apr.

46

46

46

47

49

50

50

48

47

47

48

48

49

49

49

49

50

51

52

51

50

49

51

53

55

55

56

56

54

51

50

May

51

51

52

52

54

52

53

55

54

53

54

55

56

56

56

53

54

55

56

56

55

54

56

56

56

57

57

57

57

56

56

55

June

56

57

59

61

61

60

59

61

60

60

59

58

52

57

57

59

59

61

62

63

62

61

60

61

58

59

60

63

59

62

_

60

July

63

64

64

70

65

66

66

66

66

69

70

72

72

71

71

71

70

69

69

70

67

67

68

67

68

69

70

71

71

71

72

69

Aug.

71

72

72

72

72

72

71

73

73

73

73

72

71

73

71

69

70

68

67

69

68

69

69

69

67

65

66

65

64

66

70

Sept.

63

65

64

64

65

65

65

63

64

64

63

63

61

61

59

60

60

60

61

61

62

62

59

61

61

62

65

60

59

62

62
SNAKE RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN SNAKE RIVER BASIN 

Chemical analy«

Date of collection

Mean 

discharge 

(cfc.)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

les. in carts ner million, water y

Bicarbonate 

(HCO,)

Carbonate 

(CO,)

Sulfate 

(SO.)

Chloride 

(Cl)

sar October 1951 to 

Fluorlde 

(F)

Nitrate 

(NO,)

Boron 

(B)

SNAKE RIVER NEAR BURLEY

NOT. 11, 1951 ......

Junel, 1952 .......

25 

16

43 

38

17 

13

34 

18

202 

166

48 

30

24 

14

1.2 

.3

SALMON FALLS CREEK NEAR BUHL

Nov. 11, 1951 ......

June 2, 1952 .......

62 98 

83

35 

23

82

1

276 

191 16

216 

164

76 

55

10 

6.1

SNAKE RIVER BELOW THOUSAND SPRINGS NEAR HAGERMA

Nov. 11, 1951 ......

Jim* 2, 1953 .......

33 

25

50 

43

22 

16

31 

25

216 

184

59 

45

30 

20

2.9 

1.9
PART 14. PACIFIC SLOPE BASINS IN OREGON AND LOWER COLOM

JOHN DAY RIVER BASIN 

SOUTH FORK JOHN DAY RIVER NEAR DAYVILLE, OREG

LOCATION. Temperature recorder at gaging station 0.3 mile below U. S. Bureau of Reclamation 

south of Dayville, Grant County. 

DRAINAGE AREA. 589 square miles.

RECORDS AVAILABLE. Water temperatures: October 1951 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum 77*F July 10, 11, 27; minimum freezing poin

REMARKS. Records of discharge for water year 1951-52 given in WSP 1246.

Temperature (*F) of water, water year October 1951 to Septemb

Day

1 ...................

5 ...................

6 

7 .................. .

9 ...................

11 ...................

12 

is ...................

14 ...................

18 --.- - - .

19 

20 

21 -..---«------« -

as ...................

24 ......... __ ......

27 ...................

«o

«Q ....

30 ...... ............ -

31 

Average 

October

max

53 

52 

51

49 

46 

45 

51 

50

47 

45 

46 

47 

47

47 

47 

47 

47 

46 

44

"

min

51 

48

46 

42 

43 

45 

47

44 

44

45 

44

44

44

42 

42 

44 

42 

40

--

November

max

40 

39 

42 

45 

44

44 

44 

43 

44 

44

44 

42 

42 

42 

41

39 

37 

37 

39 

42

42 

42 

41 

39 

37 

40 

41 

41 

40 

39

41

min

37 

37 

39 

42 

40

40 

41 

41 

41 

44

42 

42 

41 

41 

39

37 

35 

36 

37 

39

42 

41 

39 

37 

37

37 

40 

38 

39 

39

39

December

max

39 

39 

36 

36 

35

35 

33 

33 

33 

33

34 

34 

33 

32 

33

34 

34 

34 

34 

34

35 

35 

35 

35 

32

32 

34 

34 

34 

34 

33

34

min

39 

36 

36 

35 

35

33 

33 

33 

32 

32

32 

32 

32 

32 

32

35 

33 

33 

34 

34

34 

35 

35 

32 

32

32 

32 

34 

34 

33 

33

33

January

max

33 

32 

32 

32 

32

33 

33 

37 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

34

33 

33 

34 

36 

36

37 

37 

36 

36 

37 

36

34

min

32 

32 

32 

32 

32

32 

33 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

33 

33 

34 

35

35 

35 

34 

33 

36 

35

33

February

max

37 

36 

35 

37 

37

36 

35 

36 

36 

36

36 

36 

34 

34 

35

35 

35 

34 

33 

33

35 

34 

35 

38 

38 

38 

39 

39 

38

36

min

36 

35 

35 

35 

35

34 

34 

34 

34 

35

35 

34 

34 

34 

34

35 

34 

32 

33 

33

32 

33 

33 

35 

35

36 

36 

36 

35

34

March

max

37 

36 

36 

35 

38

40 

41 

40 

41 

41

39 

38 

38 

37 

38

43 

42 

41 

39 

39

40 

39 

38 

37 

40

40 

42 

42 

41 

41 

42

39

min

35 

35 

34 

34 

35

37 

37 

36 

40 

38

37 

35 

35 

35 

36

38 

37 

37 

36 

36

36 

33 

36 

37 

37

36 

39 

40 

39 

40 

46

37

April

max

42 

46 

46 

48 

50

48 

47 

48 

47 

48

48 

49 

49 

48 

48

50 

52 

54 

54 

48

51 

52 

54 

55 

55

56 

56 

55 

52 

52

50

min

40 

42 

42 

42 

43

45 

45 

41 

43 

44

45 

44 

48 

45 

44

46 

48 

49 

48 

44

45 

48 

50 

51 

53

51 

52 

51 

47 

51

46

H

max

52 

52 

52 

49 

52

53 

52 

52 

54 

56

56 

57 

57 

56 

53

57 

57 

58 

58 

56

57 

59 

62 

61 

62

63 

67 

64 

62 

62 

61

57
JOHN DAY RIVER BASIN Continued 

DESOLATION CREEK NEAR DALE, OREG.

LOCATION. Temperature recorder at gaging station 1 mile above mouth; and 2 miles east of Dal

DRAINAGE AREA.--106 square miles.

RECORDS AVAILABLE. Water temperatures: July 1950 to September 1852.

EXTREMES, 1951-52. Water temperatures: Maximum, 73°F July 29, 30; minimum, freezing point o

EXTREMES, 1950-52. Water temperatures: Maximum,76°F July 24, 1951; minimum,freezing point o

REMARKS. Records of discharge for water year 19'51-52 given in WSP 1248. Correction: WSP 120

instead of Pottawatomie County.

Temperature (°F) of water, water year October 1951 to Septemb

Day

2

rj ......... _ _.

19

13

1 ft

19

rtrt

21

22

24

25 ---

27

31 .... ........

Average ........

October

max

54 

54 

53 

50 

50

50 

52 

52

46 

48 

47

48 

42 

42 

46

44

42 

43 

43 

41 

40

38 

39 

39 

40 

37 

34

45

min

52 

50 

50 

46 

42

42

44 

43 

44

45 

42

40 

38 

38 

42 

42

40 

40 

41 

38 

36

34 

33 

34 

36 

33 

33

41

November

max

33 

32 

32 

36 

33

34 

35 

37 

37 

38

38 

37 

37 

36 

35

33 

32 

32 

32 

32

33 

35 

33 

32 

32

32

34 

36 

37 

38

34

min

32 

32 

32 

32 

32

32 

33 

33 

33 

36

36 

36 

35 

34 

33

32 

32 

32 

32 

32

32 

33 

32 

32 

32

32 

32 

34 

34 

36

33

December

max

38 

36 

35 

34 

34

34 

33 

33 

33 

33 

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

33 

33

33 

32 

32 

32 

32 

32

33

min

36 

34 

33 

33 

34

33 

33 

33 

33 

32 

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

33

32 

32 

32 

32 

32 

32

32

January

max

32 

33 

33 

33 

32

32 

33 

32 

32 

52

32 

32 

32 

32 

32

32 

33 

33 

32 

32

32 

32 

32 

32 

32

33 

33 

33 

33 

33 

32

32

min

32 

32 

32 

32 

32

32 

32 

32 

32 

32 

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

33 

32 

32 

32 

32

32

February

max

32 

32 

32 

34 

34

33 

33 

33 

33 

33

33 

32 

32 

32 

32

33 

33 

33 

32 

32

32 

33 

32 

32 

32

32 

34 

34 

34

33

min

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

32 

32 

32

32 

32 

33 

33

32

March

max

33 

33 

33 

34 

35

35 

35 

34 

35 

36

35 

35 

36 

34 

37

37 

36 

37 

37 

35

37 

36 

36 

34 

36

38 

38 

39 

38 

39 

39

36

min

33 

33 

32 

32 

33

33 

33 

33 

34 

34

33 

33 

33 

33 

33

35 

33 

33 

33 

34

33 

33 

33 

34 

34

33 

33 

34 

34 

35 

35

33

April

max

38 

40 

42

44 

45

42 

41 

40 

43 

43

41 

45 

44 

42 

45

46 

48 

49 

43 

46

46

47 

47 

47 

47

47 

46 

44 

46 

44

44

min

34 

37 

36 

36 

37

37 

36 

33 

34 

36

36 

36 

40 

37 

36

37 

39 

39 

39 

36

37 

38 

39 

40 

40

39 

39 

40 

37 

42

37

M

max

43 

47 

46 

44 

45

46 

46

45 

47 

48

49 

50 

48 

46

44

50 

49 

50 

48 

45

45 

50 

50 

50 

50 

51 

52 

50 

50 

51 

50

48
DESCHUTES RIVER BASIN 

CROOKED RIVER NEAR CULVER, OREG.

LOCATION. Temperature recorder at gaging station 1 mile upstream from mouth, 1 mile downstre

of Culver, Jefferson County.

DRAINAGE AREA. 4,330 square miles, approximately. 

RECORDS AVAILABLE. Water temperature: July to September 1952. 

REMARKS. Records of discharge for 1950-51 water year given in WSP 1248.

Temperature (°F) of water, July to September 19.52

Day

1 

4

8 ...... - 

12

13 _ _ .. _ ..........

15

20

23

25

97

90

on

31 

Average -

October

max min

November

max min

December

max min

January

max min

February

max min

March

max min

April

max min

M

max 
DE8CHUTES RIVER BASIN Continued 

METOLIUS RIVER NEAR GRANDVIEW, OREG.

LOCATION. Temperature recorder at gaging station on right bank, at Montgomery ranch 8 miles 

DRAINAGE AREA. 324 square miles.

RECORDS AVAILABLE. Water temperatures: July to September 1952.

EXTREMES, Water temperatures: Maximum, 51°F several days in July and August.

REMARKS. Records of discharge for water year 1951-52 given In WSP 1248.

Temperature (°F) of water, July to September 1952

Day

1 ...................

3 ...................

4 ...................

5 

7 ...... .............

9 ...................

10 ........ ... ... .

U 

13 ...................

14 ...................

16 ...................

1 fl

19 

20 

99

23 

9A

40 __._

30 ...................

31 ...................

Average 

Octoher Novelnber Deceinber January Febrnary Ma rcb API il M
DESCHITTES RIVER BASIN Continued 

DESCHUTES RIVER HEAR MADRAS, OREG.

LOCATION. Temperature recorder at gaging station 1 mile downstream from Pelton dam site, 5 m

northwest of Madras, Jefferson County. 

DRAINAGE AREA. 7,900 square miles, approximately. 

RECORDS AVAILABLE. Water temperatures: March to September, 1952. 

EXTREMES, 1952. Water temperatures: Maximum, 59"F July 3-5, 10. 

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, March 1951 to September 

Day

4 _ _ . _

9 »

11 

14 

16 

on _

n«

25 

29 

so 

31 

Average 

October Nbvetnber Deceinber Janu«Z_ Febrnary Ma:

46 

46 

46 

46 

46

47 

47 

46 

46 

45

46 

47 

48 

48 

49

49 

47 

48 

48 

46 

46

--

rch

46 

45 

45 

45 

45

45 

46 

46 

45 

44

45 

45 

47 

47 

48

47 

47 

47 

46 

46 

45

--

Api

48 

48 

48 

49 

51

51 

51 

49 

48 

49

50 

50 

51 

50 

50

50 

52 

53 

53 

52

51 

52 

53 

53 

54

54 

54 

54 

52 

52

51

U

46 

46 

47 

48 

49

51 

49 

48 

48 

48

49 

49 

50 

49 

49

49 

50 

52 

52 

49

49 

50 

51 

52 

53

53 

53 

52 

50 

51

50

Mi

51 

52 

52 

51 

51

52 

52 

53 

53 

55 

54 

54 

55 

54 

54

55 

55 

55 

55 

54

54 

55 

56 

56 

56

56 

56 

56 

55 

55 

55

54
DESCHOTES RIVER BASIN 

WARM SPRINGS RIVER AT HEHE MILL, NEAR WARM SPRING

LOCATION, Temperature recorder at gaging station at downstream side of highway bridge, one-

10 miles south of Bear Springs ranger station and 18 miles northwest of Warm Springs, Jeff

DRAINAGE AREA. 108 square miles.

RECORDS AVAILABLE. Water temperatures: May 1950 to September 1952.

EXTREMES, 1951-52 . Water temperatures: Maximum 59°F July 10; minimum, freezing point, Dec. 

EXTREMES. 1950-52.--Water temperatures: Maximum, 59°F July 5, 6, 25, 1950, July 17, 1951; Ju

27, 1951, Jan. 1-4, 1952.

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to Septem

Day

2

4 ___ . ____ . __ _

Q

13 . ........ ....

15 - - -

1 ft

91

59

9A

27 

oo

31 ...................

Average ........

October

max

48 

48 

48 

47 

46

47 

47 

47 

46 

46

46 

47 

47 

48 

46

45 

43 

43 

46 

46

44 

44 

44 

44 

43

42 

41 

42 

43 

42 

41

45

min

47 

47 

46 

44 

43

44 

44 

44 

44 

44

45 

45 

45 

46 

44

43 

41 

42 

43 

43

42 

42 

43 

42 

42

40 

40 

40 

42 

40 

39

43

November

max

40 

40 

43 

43 

41

41 

42 

42 

42 

43

43 

42 

41 

41 

41

39 

38 

39 

40 

41

41 

41 

40 

39 

40

40 

40 

41 

41 

42

41

min

38 

38 

40 

41 

39

38 

41 

41 

41 

42

41 

41 

40 

41 

39

38 

38 

38 

38 

40

41 

40 

38 

38 

39

39 

39 

40 

40 

41

40

December

max

41 

41 

41 

40 

37

37 

37 

35 

36 

37

37 

37 

37 

36 

38

38 

38 

38 

37 

38

37 

35 

36 

35 

33

33 

34 

35 

36 

36 

35

37

min

41 

40 

40 

38 

37

37 

35 

35 

34 

36

37 

37 

36 

35 

36 

37 

38 

36 

36 

37

36 

36 

35 

33 

33

32 

32 

34 

35 

35 

34

36

January

max

34 

32 

32 

34 

36

36 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

36

35 

35 

36 

37 

37

36 

36 

37 

36 

37

39 

39 

38 

39 

40 

40

--

min

32 

32 

32 

32 

34

36 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

34

35 

33 

33 

36 

36

35 

34 

35 

36 

36

37 

37 

37 

38 

39 

39

--

February

max

39 

39 

38 

38 

36

36 

37 

37 

37 

37

38 

38 

37 

38 

39 

39 

38 

36 

36 

36

36 

36 

36 

38 

39 

41 

40 

39 

39

38

min

39 

38 

38 

36 

36

36 

36 

36 

36 

36

37 

36 

35 

36 

38

38 

36 

36 

36 

35

35 

35 

34 

36 

38

39 

38 

36 

37

36

March

max

38 

38 

38 

38 

39

39 

40 

40 

42 

42

41 

41 

41 

41 

42 

43 

42 

42 

41 

41

42 

42 

42 

43 

43

42 

43 

42 

42 

42 

42

41

min

37 

36 

38 

38 

37

38 

37 

37 

41 

40

39 

39 

38 

40 

40

39 

40 

39 

39 

38

38 

38 

41 

41 

41 

40 

39 

41 

39 

39 

39

39

April

max

42 

43 

44 

45 

45

45 

43 

43 

43 

44

45 

45 

44 

43 

45

45 

46 

47 

47 

46

47 

47 

47 

47 

49

49 

48 

46 

44 

47

45

min

39 

40 

39 

39 

40

42 

40 

38 

39 

39

40 

40 

41 

40 

40

40 

41 

42 

41 

40

41 

42 

42 

43 

44

44 

44 

42 

40 

43

41

M

max

46 

45 

46 

46 

45

46 

46 

48 

49 

50

49 

49 

49 

46 

50

51 

49 

50 

50 

49

50 

51 

52 

52 

53

52 

53 

52 

52 

52 

52

49

a Range in temperature 34'F to 37°F for period Jan. 7 to 14.
COLUMBIA RIVER MAIN STEM 

COLUMBIA RIVER AT MARYHILL FERRY NEAR RUFUS, ORKG.

LOCATION At Maryhill Ferry about 2i miles downstream from Rufus, Sherman County, and about 9 miles up

upstream from Celilo Falls, 3 miles downstream from Deschutes River, and 11 miles east of The Dalles

DRAINAGE AREA. 237,000 square miles (above gaging station near The Dalles). 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1952.

Water temperatures: December 1950 to September 1952.

EXTREMES, 1951-52, Dissolved solids: Maxisum, 147 ppm Mar. 11-20; minimum, 91 ppm June 11-20. 

Hardness: Maximum, 99 ppm Mar. 21-31; minimum, 58 ppm May 1-10.

Specific conductance: Maximum daily, 242 micromhos Feb. 27; minimum daily, 125 micromhos May 1. 

Water temperatures: Maximum observed, 75*F Aug. 3; minimum observed, 36*F Feb. 2.

EXTREMES, 1950-52. Dissolved solids: Maximum, 147 ppm Mar. 11-20, 1952; minimum, 87 ppm May 11-20, 19

Hardness: Maximum, 99 ppm Mar. 21-31, 1952; minimum, 56 ppm May 21-31, 1951.

Specific conductance: Maximum daily, 242 micromhos Feb. 27, 1952; minimum daily, 124 micromhos May 2

Water temperatures: Maximum observed, 75'F Aug. 3, 1952; minimum observed, freezing point Jan. 25, 3

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific conduc

Portland, Oregon. Records of discharge for gaging station near the Dalles, Oreg., for water year Oc

records include the inflow of the Deschutes River, which on the average amounts to less that 5% of t

appreciable inflow between Maryhill Ferry and gaging station except during periods of heavy local ra

Chemical analyses, in parts per million, water year October 1951 to Septe

Date of collection

Oct. 1-10, 1951 .. 

Oct. 11-20. .......

Oct. 21-31 .......

Nov. 1-10 .......

Nov. 11-20 .......

Nov. 21-30 .......

Dec. 1-10 ........

Dec. 11-20 .......

Tan. 30-31, Feb. 

1-10, 1952 ......

Feb. 11-20 .......

Feb. 21-29........

Mar. 1-10 .......

Mar. 11-20.......

Mar. 21-31.......

Apr. 1-10 ........

Apr. 11-20 .......

Apr. 21-30 .......

Mean 

discharge 

(cfs)

116,800 

119,100 

128,700 

116,600 

112, 800 

105,600

127,900 

110,900

141,600 

125, 100 

123,200

127,400 

135,200 

179,500 

213, 200 

249, 800 

301.400

Silica 

(SiOJ

13 

10 

12 

13 

13 

13

14 

14

15 

17 

15

14 

15 

18 

20 

18 

18

Iron 

(Fe)

0.03 

.02 

.02 

.02 

.02 

.03

.02 

.02

.03 

.16 

.04

.06 

.14 

.10 

.19 

.16 

.16

Calcium 

(Ca)

24 

24 

25 

25 

25 

26

25 

24

25 

24 

25

26 

26 

26 

20 

18 

15

Magnesium 

(Mg)

7.1 

6.8 

7.2 

7.4 

7.4 

7.7

7.4 

7.9

7.7 

7.6 

7.7

8.0 

8.1 

8.3 

8.4 

6.3 

5.9

Sodium 

(Na)

8.9 

8.4 

9.7 

9.7 

10 

11

9.6 

9.5

10 

9.3 

9.3

9.3 

10 

8.4 

7.0 

7.4 

6.0

Potassium 

(K)

3.2 

3.2 

3.4 

2.9 

3.4 

3.2

2.1 

2.1

.7 

.7 

.8

.8 

.8 

2.8 

2.2 

2.2 

2.0

Bicarbonate 

(HCO.)

100 

98 

104 

104 

104 

112

105 

101

107 

101 

103

106 

106 

103 

90 

85 

68

Sulfate 

(S04)

22 

20 

21 

21 

22 

23

19 

19

22 

21 

22

22 

23 

21 

15 

13 

12

Chlorids 

(Cl)

4.4 

4.4 

5.0 

4.9 

5.9 

5.8

5.5 

5.8

5.6 

4.8 

5.5

5.7 

5.8 

5.5 

5.0 

4.0 

3.2

Fluoride 

(F)

0.3 

.3 

.3 

.3 

.3 

.3

.2 

.2

.3 

.3 

.3

.3 

.4 

.5 

.5 

.4 

.4

Nitrate 

(NO,)

1.1 

.9 

1.0 

1.1 

.9 

.5

1.1 

1.1

1.2 

2.0 

1.3

.9 

1.3 

2.1 

2.2 

1.1 

1.6

Boron 

(B)

0.14 

.16

.09 

.07

.09 

.05

D

(re

Parts 

per 

million

129 

122 

13

134 

13

144

139 

139

140 

140 

14

140 

147 

14

12

115 

104
COLUMBIA RIVER MAIN STEM Continued

COLUMBIA RIVER AT MARYHILL FERRY NEAR RUFUS, OREG.--Con

Chemical analyses, in parts per million, water year October 1951 to September 19

Date of collection

May 1-10, 1952 . .

May 21-31 .......

Jane 11-20 ......

July 11-20 .......

July 21-31 .......

Aug. 11-20 ......

Sept. 11-20......

Sept. 21-30......

Weighted average

Mean

discharge 

(cfs)

361,900 

482, 300 

540,600 

477, 800 

408, 500 

332,300

330,800 

263,400 

206,900 

165,000 

138,000 

125,000

101,700 

95,030 

91, 230

a 208, 300

Silica 

(810.)

16 

13 

10 

11 

9.6 

9.6

12 

12 

11 

11 

9.3 

8.5

9.5 

8.3 

8.1

13

Iron 

(Fe)

0.08 

.09 

.03 

.03 

.03 

.03

.02 

.02 

.02 

.03 

.04 

.04

.05 

.09 

.07

0.06

Calcium 

(Ca)

15 

16 

17 

18 

17 

18

19 

19 

20 

22 

21 

24

24 

23 

23

20

Magnesium 

(Mg)

5.0 

.6 

.8 

.6 

.4 

.5

5.1 

5.2 

5.5 

5.9 

5.9 

6.7

7.3 

7.3 

7.2

6.0

Sodium 

(Na)

4.2 

5.3 

5.1 

5.1 

4.9 

4.7

5.2 

5.2 

6.1 

6.6 

7.5 

11

12 

12 

12

6.9

Potassium 

(K)

1.5 

1.9 

1.5 

1.7 

1.7 

1.8

1.2 

1.6 

1.9 

1.5 

1.8 

2.0

1.7 

1.9 

1.9

1.9

Bicarbonate 

(HCO,)

64 

68 

72 

73 

69 

76

84 

88 

88 

88 

88 

96

100 

98 

100

85

Sulfate 

(SO.)

10 

11 

12 

12 

12 

12

12 

12 

15 

16 

18 

22

24 

25 

25

15

Chloride 

(Cl)

3.0

2.2 

1.8 

2.0 

2.0

3.5 

3.5 

4.5 

4.8 

4.0 

5.5

6.0 

5.8 

6.0

3.9

Fluoride 

(F)

0.4 

.3 

.2 

.2 

.2 

.3

.2 

.2 

.3 

.3 

.2 

.2

.2 

.2 

.2

0.3

Nitrate 

(NO,)

0.8 

1.1 

.9 

.9 

1.1 

1.1

.8 

.7 

1.0 

.7 

1.0 

1.0

1.1 

1.0 

.5

1.1

Boron 

(B)

0.08 

.07

.04 

.04

Dis

(resid

Parts 

per 

million

92 

93 

93 

93 

91 

95

97 

97 

104 

107 

113 

132

135 

134 

135

111

a Represents 94 percent of runoff for water year October 1951 to September 1952.
COLOMBIA RIVER MAIN SUM 311

COLOMBIA RIVER MAIN STEM ContinuedCOLOMBIA RIVER AT MARYHILL FERRY NEAR ROFOS, OREG Continued

Temperature (*F) of water, water year October 1951 to September 1952 

/Once-daily temperature measurement at approximately 4:00 p. m.7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Average

Oct.

62

62

62

62

62

62

62

61

61

61

60

62

59

60

59

59

58

58

58

57

58

58

57

56

56

56

56

55

55

55

59

Nov.

55

54

54

54

54

54

54

53

53

52

52

52

52

51

50

50

50

49

48

47

_

46

45

44

43

44

43

42

40

41

49

Dec.

42

44

43

42

43

41

42

44

45

39

45

46

47

46

44

43

41

40

39

37

_

~

_

«

Jan.

_

_

~

_

~

_

--

_

._

~

_

-.

39

40

Feb.

38

36

39

40

42

44

45

43

46

45

42

42

40

42

42

41

39

40

41

40

39

38

30

40

39

44

42

43

44

_

«

41

Mar.

45

46

44

42

40

43

44

42

41

44

43

45

44

43

45

46

45

44

45

43

42

43

45

46

48

50

49

46

47

45

46

45

Apr.

47

49

48

50

47

49

50

48

52

49

50

52

53

52

50

52

53

51

49

48

47

49

52

54

52

50

51

52

54

50

Mey

55

56

54

53

55

53

51

49

50

52

55

57

56

55

57

58

56

55

53

50

51

54

56

58

57

55

54

52

50

48

47

54

June

41

43

44

46

46

46

45

47

47

52

49

47

49

52

50

53

50

56

56

60

58

57

62

63

65

64

62

59

58

60

53

July

62

63

61

60

62

64

63

64

66

65

63

64

62

63

65

67

66

64

65

66

67

69

68

70

72

70

72

73

72

70

72

66

Aug.

73

74

75

~

_

_

_

_

70

69

68

66

68

67

65

67

69

68

66

64

66

68

69

70

72

69

_

Sept.

69

67

66

65

67

64

65

67

65

64

63

61

60

62

63

64

65

63

65

64

66

65

67

69

67

66

64

62

64

65

65
KLICKITAT RIVER BASIN 

KLICKITAT RIVER NEAR GLENWOOD, WASH.

LOCATION. Temperature recorder, at gaging station ,half a mile downstream from Dairy Creek, 

miles upstream from Trout Creek. 

DRAINAGE AREA. 360 square miles.

RECORDS AVAILABLE. Water temperatures: July 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 59°F July 10, 11,1952; minimum, 33°F Dec. 4

EXTREMES, 1950-52. Water temperatures: Maximum, 59°F July 10, 11, 1952; minimum, freezing p

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248

Temperature (*F) of water, water year October 1951 to September 1

Day

19

13 -

15 ---. ...---

16 ----. .- -- 

18

19

on

91

99

oa

27 -

no

9O

31 ...................

Average 

October

max

49 

49 

49 

48 

47

47 

47 

47 

47 

47

47 

47 

47 

47 

45

44 

42 

43 

45 

45

44 

43 

42 

42 

42 

41 

41 

42 

42 

40 

39

45

mln

49 

49 

48 

46 

45

46 

47 

47 

47 

47

47 

46 

46 

45 

43

43 

42 

42 

43 

44

42 

42 

42 

42 

42 

40 

40 

40 

40 

39 

38

44

November

max

38 

38 

40 

40 

40

39 

40 

40 

41 

41

41 

38 

38 

37 

37

36 

35 

36 

36 

37

38 

38 

37 

36 

35 

37 

37 

37 

37 

38

38

mln

36 

36 

38 

40 

38

38 

39 

40 

40 

41

38 

38 

37 

37 

36

34 

34 

34 

36 

36

37 

37 

36 

35 

34 

34 

37 

37 

37 

37

37

December

max

38 

38 

37 

37 

35

35 

35 

33 

33 

35

35 

35 

35 

34 

35

35 

35 

35 

35 

35

36 

36 

36 

33 

33 

33 

33 

34 

34 

34 

34

3D

mln

38 

37 

36 

33 

33

35 

33 

33 

33 

33

35 

35 

34 

34 

34

35 

35 

33 

34 

34

35 

36 

33 

33 

33 

33 

33 

33 

34 

34 

33

34

January

max

33 

33 

33 

33 

33

33 

33 

35 

36 

36

36 

35 

35 

35 

36

36 

35 

36 

36 

35

35 

35 

35 

35 

36 

38 

38 

38 

38 

38 

38

35

min

33 

33 

33 

33 

33

33 

33 

33 

35 

36

35 

35 

34 

34 

35

35 

34 

35 

35 

34

35 

35 

34 

34 

35 

36 

38 

38 

38 

38 

38

35

February

max

38 

38 

38 

38 

37

37 

37 

38 

38 

38

38 

38 

36 

36 

37

37 

37 

35 

35 

35

35 

34 

36 

37 

38 

39 

39 

39 

37

37

min

38 

38 

38 

37 

37

37 

37 

37 

37 

38

38 

36 

34 

35 

36

37 

35 

34 

34 

35

34 

34 

34 

36 

37 

38 

39 

37 

37

36

March

max

37 

37 

37 

38 

38

37 

37 

38 

39 

39

39 

39 

38 

38 

40

39 

39 

38 

38 

38

38 

38 

41 

42 

42 

41 

41 

40 

39 

39 

38

39

min

36 

36 

36 

36 

37

37 

36 

37 

38 

39

38 

37 

38 

37 

38

37 

38 

37 

37 

36

36 

36 

38 

40 

40 

40 

38 

39 

38 

38 

36

37

April

max

38 

40 

41 

41 

42

41 

40 

39 

40 

40

42 

41 

41 

41 

41

41 

42 

43 

41 

41

42 

42 

42 

42 

44 

42 

41 

40 

40 

41

41

min

37 

38 

38 

38 

39

40 

37 

37 

38 

38

39 

39 

40 

40 

38

39 

39 

39 

39 

38

38 

39 

39 

40 

40 

40 

40 

39 

37 

40

39

May

max

41 

41 

42 

42 

41

42 

43 

44 

45 

45

45 

45 

45 

44 

45

46 

45 

46 

46 

43

46 

48 

48 

48 

49 

49 

49 

49 

48 

48 

48

45

m
KLICKITAT RIVER BASIN--Continued 

KLICKITAT RIVER NEAR PITT, WASH.

LOCATION. Temperature recorder at gaging station, 3} miles south of Pitt, Klickitat County, 

miles upstream from mouth at Lyle. 

DRAINAGE AREA.--1,290 square miles, approximately.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 65°F July 10-14. 30, Aug. 9, 10, 1952; minim

EXTREMES, 1950-52. Water temperatures: Maximum, 66°F July 17, 23, 1951; minimum, 35°F Jan. 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 124

Temperature (°F) of water, water year October 1951 to September 

Day

g

19

9Q

25

31 ......... .._ . .

Average ........

October

max

58 

58 

58 

56 

54

55 

55 

58 

54 

54

53 

52 

53 

52 

50 

48 

48 

46 

48 

47

46 

45 

45 

45 

45

42 

42 

43 

44 

44 

41

50

mln

57 

56 

56 

51 

51

51 

52 

51 

50 

51

52 

50 

51 

50 

47 

46 

46 

46 

46 

46

45 

45 

45 

44 

43

42 

42 

42 

43 

42 

41

48

November

max

41 

41 

43 

44 

44

43 

45 

46 

45 

46

46 

44 

43 

43 

43 

42 

40 

39 

40 

41

42 

42 

42 

40 

40

40 

40 

41 

42 

43

42

mln

41 

41 

41 

43 

43

42 

43 

45 

45 

45

45 

43 

43 

43 

42 

40 

40 

39 

39 

40

41 

42 

40 

40 

40

40 

40 

40 

41 

42

42

December

nuuc

43 

43 

42 

42 

41

40 

39 

38 

37 

37

38 

38 

38 

38 

39 

39 

39 

39 

39 

38

39 

39 

39 

38 

36

36 

36 

36 

36 

36 

36

39

mln

43 

42 

42 

41 

40

39 

38 

37 

37 

37 

37 

38 

38 

38 

38 

39 

39 

39 

38 

38

38 

39 

38 

36 

36 

36 

36 

36 

36 

36 

36

38

January

max

36 

36 

36 

36 

35

35 

35 

36 

37 

38

38 

38 

38 

38 

37 

37 

37 

37 

39 

39

38 

38 

37 

36 

38 

40 

40 

40 

40 

40 

40

38

min

36 

36 

36 

35 

35

35 

35 

35 

36 

37

38 

38 

38 

37 

37 

37 

37 

37 

37 

38

38 

38 

36 

36 

36

38 

40 

39 

39 

40 

39

37

February

max

39 

39 

39 

39 

39

39 

39 

39 

40 

40

40 

40 

39 

39 

40 

40 

39 

38 

38 

39

39 

38 

40 

41 

41

43 

43 

42 

43

40

min

39 

39 

39 

39 

38

38 

38 

38 

39 

39

40 

39 

37 

38 

39 

39 

38 

37 

38 

38

38 

37 

39 

40 

41

41 

42 

42 

41

39

March

nuuc

43 

42 

42 

42 

42

42 

43 

43 

43 

44

44 

43 

43 

43 

45 

45 

44 

44 

44 

44

44 

45 

46 

46 

46

46 

45 

44 

42 

43 

43

44

min

41 

40 

42 

41 

41

41 

40 

41 

43 

43

42 

41 

41 

42 

43 

42 

43 

42 

43 

41

41 

42 

45 

46 

45

43 

41 

42 

40 

41 

41

42

April

nuuc

43 

45 

46 

47 

47

47 

46 

44 

45 

46

47 

47 

47 

48 

47 

47 

48 

48 

48 

45

47 

47 

47 

48 

48

49 

47 

45 

44 

45

46

min

40 

43 

43 

44 

46

46 

42 

40 

41 

42

44 

44 

47 

45 

45 

45 

46 

47 

44 

41

43 

45 

45 

46 

47

46 

45 

43 

42 

43

44

Ma

max

46 

46 

47 

47 

46

47 

47 

50 

49 

50

50 

50 

50 

49 

49 

51 

50 

51 

50 

48

50 

50 

51 

52 

53

52 

53 

53 

53 

51 

53

50

a Temperatures from Oct. 1 to Nov. 20, 1951 are considered poor, as thermograph was off several degrees at ev
HOOD RIVER BASIN 

GREEN POINT CREEK BELOW NORTH FORK, NEAR DEE, ORE

LOCATION . Temperature recorder at gaging station three-quarters of a mile upstream from mo

west of Dee, Hood River County. 

DRAINAGE AREA. 20.0 square miles.

RECORDS AVAILABLE. Water temperatures: May 1950 to September 1952.

EXTREMES, 1951 -52. Water temperatures: Maximum, 60°F Aug. 10, 11; minimum, 34°F Jan. 3. 

EXTREMES, 1950-52. Water temperatures: Maximum, 60*F Aug. 10, 11, 1952; minimum, 34°F Jan

REMARKS . Records of discharge for water year 1951-52 given in WSP 1246.

Temperature (°F) of water, water year October 1951 to Septemb

Day

1 

9 - ..... 

11 ...... _ . _ _

14

15 - . . .

1 A

19

21

nn

23

*>A

27

on

30

Average 

October

max

51 

51 

51 

51 

50

49 

50 

50 

50 

50

50 

50 

50 

50 

49

48 

47 

45 

46 

46

45 

45 

45 

45 

45 

44 

43 

43 

44 

43 

42

47

min

51 

51 

51 

50 

49

49 

49 

50 

50 

50

50 

50 

50 

49 

48

47 

45 

45 

45 

45

45 

45 

45 

45 

44

43 

43 

43 

43 

42 

41

47

November

max

41 

40 

40 

41 

41

41 

42 

42 

42 

42

42 

42 

42 

42 

41

40 

40 

40 

40 

40

40 

40 

40 

40 

40

38 

39 

40 

40 

40

41

min

40 

40 

40 

40 

41

41 

41 

42 

42 

42

42 

42 

42 

41 

40

40 

40 

40 

40 

40

40 

40 

40 

40 

38

38 

38 

39 

40 

40

40

December

max

40 

40 

40 

40 

40 

40 

39 

38 

38 

38

38 

38 

38 

38 

38

38 

39 

38 

38 

38

39 

39 

39 

38 

37 

37 

36 

36 

36 

36 

36

38

min

40 

40 

40 

40 

40

39 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

39 

38 

37 

37

36 

36 

36 

36 

36 

36

38

January

max

36 

36 

35 

34 

34

36 

36 

37 

36 

36

37 

37 

37 

37 

37

37 

37 

37 

38 

38

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

--

min

36 

35 

34 

34 

34

34 

36 

36 

36 

36

36 

37 

37 

37 

37

37 

37 

37 

37 

38

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

..

February

max

(a) 

(a) 

(a) 

(a) 

38

38 

38 

38 

38 

38

38 

38 

38 

37 

38

38 

38 

38 

37 

37

37 

37 

36 

38 

39

39 

39 

39 

39

38

min

(a) 

(a) 

(a) 

(a) 

38 

38 

38 

38 

38 

38

38 

38 

37 

37 

37

38 

38 

37 

37 

37

37 

36 

36 

36 

38

39 

39 

39 

39

38

March

max

39 

39 

39 

39 

39

39 

39 

39 

40 

40

40 

40 

40 

40 

40

40 

40 

40 

39 

39

40 

40 

42 

42 

41

41 

41 

41 

40 

40 

40

40

min

39 

39 

39 

39 

39

39 

39 

39 

39 

39

40 

40 

40 

40 

40

40 

40 

39 

39 

39

39 

39 

40 

42 

41 

41 

40 

40 

40 

40 

40

40

April

max

42 

44

42 

43

44 

43

44

46 

44 

43

45 

44 

45 

46 

47 

46 

45 

43 

43 

43

--

min

41 

42

41 

41

42 

43

43

44 

42 

41

42 

43 

43 

44 

45

45 

43 

42 

41 

43

--

ma

a Range in temperature 35° F to 38" F for period Jan. 21 to Feb. 4.
SANDY RIVER BASIN 

BULL RUN RIVER AT BULL RUN, OREG.

LOCATION. Temperature recorder at gaging station 450 feet downstream from tailrace of Portla

miles downstream from Little Sandy River. 

DRAINAGE AREA. 136 square miles.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952. 

EXTREMES, 1951-52. Water temperatures: Maximum, 66°F July 16, 1952; may have been higher d

days during January. 

EXTREMES, 1950-52. Water temperatures: Maximum, 66°F July 16, 1952; minimum 35°F Jan. 3

January 1952. 

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to Septemb

Day

2

Q

1 t

20

91

23

28 - - 

30

71

Average 

October

max

54 

53 

53 

53 

53

53 

54 

54 

55 

55

55 

54 

53 

53 

52 

51 

50 

50 

50 

49

49 

49 

48 

48 

47

47 

45 

45 

46 

45 

44

51

min

53 

53 

52 

52 

51

51 

53 

54 

54 

54

53 

53 

52 

52 

50 

49 

49 

48 

48 

49

48 

48 

47 

47 

46

45 

44 

44 

45 

44 

42

49

November

max

43 

42 

43 

44 

44

43 

44 

45 

45 

45

44 

44 

44 

43 

43 

42 

41 

41 

41 

41

42 

42 

42 

40 

40

42 

42 

42 

42 

43

43

min

40 

40 

40 

43 

42

43 

43 

44 

44 

44

44 

44 

43 

42 

42 

40 

40 

40 

41 

41

41 

42 

40 

39 

39

40 

42 

42 

42 

42

42

December

max

43 

43 

42 

42 

42

41 

40 

40 

39 

39

39 

39 

39 

39 

39 

39 

39 

39 

39 

39

39 

39 

39 

39 

38 

37 

36 

37 

38 

37 

37

39

min

43 

42 

42 

42 

41

40 

39 

39 

38 

38

39 

39 

39 

38 

38 

39 

39 

39 

39 

39

39 

39 

39 

38 

37

36 

36 

36 

37 

37 

37

39

January

max

37 

36 

35 

35 

36

36 

36 

36 

36 

36

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

-

min

36 

35 

35 

35 

35

36 

36 

36 

36 

36

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

-

February

max

40 

40 

40 

40 

40

41 

41 

41 

42 

41

41 

41 

40 

40 

40 

40 

40 

40 

39 

38

39 

39 

38 

40 

40

41 

41 

41 

41

40

min

40 

40 

40 

40 

40

40 

41 

40 

40 

41

41 

40 

40 

40 

40 

40 

40 

39 

38 

38

38 

38 

37 

38 

40

40 

40 

40 

40

40

March

max

40 

40 

40 

40 

40

41 

42 

42 

42 

42

41 

41 

40 

40 

42 

42 

41 

41 

40 

40

42 

42 

42 

42 

41

42 

42 

42 

42 

41 

41

41

min

39 

39 

40 

40 

39 

40 

40 

40 

42 

41

40 

40 

40 

40 

40 

40 

41 

39 

39 

39

40 

39 

41 

41 

41

41 

41 

42 

41 

41 

40

40

April

max

42 

42 

43 

45 

45

45 

44 

43 

45 

46

46 

46 

45 

44 

45 

46 

46 

48 

46 

47

46 

46 

47 

46 

46

46 

44 

44 

42 

43

45

min

40 

42 

41 

41 

41

42 

41 

41 

42 

43

43 

42 

45 

44 

42 

43 

44 

43 

43 

43

44 

43 

45 

45 

44

45 

44 

42 

41 

42

43

M

max

43 

44 

45 

46 

45

46 

46 

46 

46 

48

48 

48 

47 

46 

45 

48 

49 

49 

49 

47

45 

47 

49 

50 

51

51 

53 

53 

50 

51 

51

48

a Range In temperature 35°F to 40°F for period Jan. 11-31.
WILLAMETTE RIVER BASIN

MIDDLE FORK WILLAMETTE RIVER BELOW NORTH FORK, NEAR OAKR

LOCATION. Temperature recorder at gaging station, half a mile below Whitehead Creek, 4 miles b

and 7 miles northwest of Oakridge, Lane County. 

DRAINAGE AREA. 924 square miles.

RECORDS AVAILABLE. Water temperatures: September 1950 to April 1951, February to September 19

EXTREMES, 1951-52. Water temperatures: Maximum, 67'F Aug. 12; minimum, 38°F Feb. 20-23, Mar. 

EXTREMES, 1950-52. Water temperatures: Maximum, 67°F Aug. 12, 1952; minimum, 35°F Jan. 29-31, 

REMARKS. Records of discharge for water year 1950-51 given in WSP 1248.

Temperature (°F) of water, February to September 1952

Day

Q

12 

1 4

1 ft

19

20 - - - 

22 - -

Oq

24

ne

AO

29 - 

»f\

31 

Average .

October

max min

November

max min

December

max min

January

max min

February

max

42 

42 

43 

43

42 

41 

41 

41 

41

42 

42 

40 

41 

41 

41 

41 

40 

39 

39

39 

39 

40 

42 

41

43 

43 

43 

42

41

min

42 

41 

41 

42

41 

40 

40 

40 

40 

41 

40 

39 

39 

41

40 

40 

39 

39 

38

38 

38 

38 

40 

40

41 

40 

41 

40

40

March

max

42 

41 

41 

41 

40

40 

42 

42 

42 

41

41 

41 

41 

41 

42

43 

42 

41 

39 

40

43 

43 

42 

41 

43 

44 

44 

43 

42 

42 

43

42

min

40 

39 

40 

40 

39

40 

39 

39 

41 

41

39 

39 

40 

40 

40

40 

41 

39 

38 

38

39 

39 

41 

41 

41

42 

41 

42 

41 

41 

41

40

April

max

44 

44 

45 

46 

46

45 

45 

44 

46 

46

45 

46 

46 

44 

46 

45 

48 

47 

46 

46

47 

48 

48 

46 

46

48 

46 

45 

43 

45

46

min

41 

42 

41 

41 

42

42 

42 

40 

41 

41

42 

42 

43 

42 

42

42 

42 

43 

42 

41

41 

44 

43 

44 

44

44 

43 

42 

41 

43

42

May

max

45 

46 

46 

47 

45

48 

47 

46 

48 

50

49 

48 

47 

45 

49

50 

49 

50 

48 

46

49 

50 

52 

51 

51

52 

52 

51 

51 

51 

50

49

m
WILUMETTE RIVER BASIN Continued 

MIDDLE FORK WILUMETTE RIVER AT LOWELL, OREG.

LOCATION. Temperature recorder at gaging station, three-quarters of a mile south of Lowell, 

DRAINAGE AREA. 994 square miles.

RECORDS AVAILABLE. Water temperatures: October 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 70*F Aug. 3, 4; minimum, 36*F Jan. 17-19, 2

EXTREMES, 1950-52. Water temperatures: Maximum, 72"F July 16, 1951; minimum, 35°F Jan. 29-3

REMARKS. Records of discharge for water year 1951-52 published in WSP 1248.

Temperature (°F) of water, water year October 1951 to Septeniber 

Day

g

fO

19 

20 - - ...

21 -

99

AO

26 . . .-.

oo

31 . .

Average 

October

max

57 

57 

56 

56 

56

56 

58 

58 

56 

56

54 

53 

53 

53 

53

52

51 

50 

50 

50

50 

49 

49 

48 

48

48 

47 

48 

47 

47 

47

52

mm

57 

56 

55 

54 

53 

54 

54 

54 

54 

54

53 

53 

53 

53 

52

51 

50 

49 

49 

50

49 

49 

48 

48 

48 

47 

46 

46 

47 

47 

46

51

November

max

47 

46 

46 

49 

49

47 

49 

49 

49 

48

48 

48 

48 

48 

48

47 

45 

44 

46 

46

47 

46 

44 

46 

45

47 

45 

46 

46 

47

47

mln

46 

46 

46 

46 

47

46 

47 

47 

48 

48

48 

48 

48 

48 

47

45 

44 

44 

44 

46

46 

44 

43 

45 

45

45 

45 

45 

46 

46

46

December

max

47 

47 

46 

46 

46

45 

44 

43 

42 

42

42 

42 

42 

42 

40

41 

41 

41 

41 

41

41 

43 

43 

42 

42

41 

41 

42 

42 

42 

42

43

mln

47 

46 

46 

46

45

44 

43 

42 

41 

41

42 

42 

42 

40 

39

40 

41 

41 

41 

41

41 

41 

42 

42 

40

41 

41 

41 

42 

42 

41

42

January

max

41 

40 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

38 

38 

36 

38 

38

37 

36 

38 

39 

39

40 

40 

40 

41 

41 

41

39

mln

40 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

38

38 

36 

36 

36 

37

36 

36 

36 

38 

39 

39 

40 

40 

40 

41 

41

39

February

max

41 

41 

41 

42 

42

42 

41 

41 

41 

41

41 

41 

39 

39 

39

39 

39 

39 

38 

38

38 

38 

38 

41 

41

41 

41 

41 

41

40

min

41 

41 

41 

41 

42 

41 

40 

40 

40 

40

41 

39 

38 

38 

39

39 

39 

38 

38 

38

37 

37 

37 

38 

40

40 

40 

41 

40

39

March

max

40 

40 

40 

40 

40

40 

42 

42 

42 

42

42 

42 

42 

41 

42

44 

44 

41 

41 

40

44 

44 

43 

42 

43

45 

45 

44 

43 

42 

43

42

min

40 

38 

39 

40 

39

40 

40 

41 

42 

42 

41 

41 

41 

41 

41

42

41 

41 

40 

39

40 

41 

42 

42 

42

42 

42 

41 

42 

42 

42

41

April

m&x

43 

44 

45 

46 

47

47 

45 

45 

45 

45

46 

46 

46 

45 

46

46 

49 

49 

48 

47

48 

49 

49 

49 

48

50 

50 

48 

46 

47

47

mln

42 

43 

43 

44 

45

45 

44 

42 

43 

44

44 

44 

45 

44 

44

44 

46 

47 

46 

43

45 

47 

47 

48 

48

48 

47 

46 

44 

45

45

M

max

47 

48 

49 

49 

49

49 

50 

50 

50 

52

52 

51 

50 

49 

51

53 

53 

53 

53 

49

51 

52 

54 

54 

54

54 

55 

55 

53 

53 

53

51
WILLAMETTE RIVER BASIN Continued 

FALL CREEK BELOW WINBERRY CREEK, NEAR FALL CREEK, OR

LOCATION. Temperature recorder at gaging station 1| miles downstream from Winberry Creek and 2

DRAINAGE AREA. 186 square miles.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 74'F Aug. 4; minimum, 38°F Jan. 17, 18. 21-23

EXTREMES, 1950-52. Water temperatures: Maximum, 74°F Aug. 17, 18, 20. 21, 1950, July 17, 1951

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 1

Day

o

3

g

13

1 A

19

on

22

23

24

25

97

29

30

01

Average 

October

max

59 

58 

57 

56 

55

56 

57 

57 

56 

56 

55 

55 

55 

55 

54

52 

51 

50 

51 

51

51 

51 

51 

51 

50 

49 

48 

48 

48 

48 

47

53

min

58 

57 

55 

55 

53

53 

54 

55 

55 

55

55 

54 

54 

54 

52

51 

49 

49 

49 

51

50 

50 

50 

50 

49 

48 

48 

48 

48 

47 

47

52

November

max

47 

46 

47 

49 

49

48 

49 

49 

48 

48

48 

48 

48 

48 

48

46 

45 

46 

46 

47

47 

46 

44 

42 

43

46 

46 

47 

48 

49

47

min

46 

46 

46 

47 

47

46 

48 

47 

47 

47

48 

48 

48 

48 

46

45 

44 

44 

46 

46

46 

44 

42 

42 

42

43 

46 

46 

47 

48

46

December

max

49 

49 

47 

47 

47

46 

45 

44 

43 

42 

42 

42 

42 

42 

42

43 

43 

43 

43 

43

43 

45 

45 

45 

44

43 

44 

44 

44 

44 

43

44

min

49 

47 

46 

46 

46

45 

44 

43 

42 

42

42 

42 

42 

41 

41

42 

43 

43 

43 

43

43 

43 

45 

44 

43

43 

43 

44 

44 

43 

43

44

January

max

43 

40 

40 

41 

41

41 

41 

41 

41 

41 

42 

42 

42 

42 

42

41 

40 

39 

40 

40

39 

38 

39 

41 

42 

42 

42 

42 

43 

43 

44

41

min

40 

39 

39 

40 

40 

41 

41 

41 

41 

41

41 

42 

42 

42 

41

40 

38 

38 

39 

39

38 

38 

38 

39 

41

42 

42 

42 

42 

43 

43

40

February

max

44 

44 

44 

44 

44 

44 

43 

43 

43 

43

43 

43 

41 

42 

42

42 

41 

41 

40 

40

40 

40 

41 

42 

42

43 

43 

43 

43

42

min

44 

44 

44 

44 

44

43 

43 

42 

42 

42

43 

41 

40 

40 

42

41 

41 

40 

40 

40

39 

39 

40 

41 

42 

42 

43 

43 

42

42

March

max

42 

41 

42 

42

42

42 

43 

42 

43 

43

43 

42 

42 

42 

43

44 

44 

42 

42 

41

44 

44 

43 

44 

44

46 

46 

46 

45 

44 

44

43

min

41 

40 

41 

41 

41

41 

41 

41 

42 

43 

42 

42 

42 

42 

42

42 

42 

41 

41 

40

41 

41 

43 

43 

44

44 

45 

45 

44 

44 

44

42

April

max

45 

45 

46 

48 

49

49 

48 

47 

49 

49 

49 

49 

49 

48 

50

49 

52 

52 

51 

49

51 

51 

52 

51 

50 

54 

52 

49 

46 

48

49

min

43 

45 

44 

45 

46 

47 

46 

44 

45 

46 

47 

46 

48 

47 

46

47 

47 

49 

46 

44

45 

48 

47 

49 

49 

49 

49 

46 

45 

45

46

May

max

49 

50 

52 

51 

49

51 

53 

51 

51 

54

54 

53 

53 

51 

54

57 

57 

59 

57 

54

56 

58 

60 

61 

61

61 

63 

62 

60 

60 

59

56

m
WILLAMETTE RIVER BASIN Continued 

LOCKOUT CREEK NEAR BLUE RIVER, OREG.

LOCATION. Temperature recorder at gaging station, 0.4 mile upstream from mouth and 6 miles nor

DRAINAGE AREA. 24.1 square miles.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 64°F Aug. 2-4, 12; minimum, 36°F Jan. 20-23, 

EXTREMES, 195Q»-52. Water temperatures: Maximum, 64°F July 16-18, 23, 1951, Aug. 2-4, 12, 1952

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 19

Day

Q

11 - .... ......

12

4O

1 fl

19

9Q

Average ........

October

max

54 

54 

53 

52 

51

52 

52 

52 

52 

52

52 

51 

51 

51 

50

49 

48 

47 

48 

48

47 

47 

(a) 

(a) 

(a)

46 

45 

46 

46 

46 

45

50

min

54 

53 

52 

51 

50

50 

50 

51 

51 

51

51 

51 

51 

50 

49 

48 

47 

47 

47 

47

47 

47 

(a) 

(a) 

(a)

45 

45 

45 

46 

45 

44

49

November

max

45 

44 

44 

45 

45 

45 

46 

46 

45 

45

45 

45 

45 

45 

45

44 

43 

43 

44 

44

44 

44 

42 

42 

42

43 

44 

44 

44 

45

44

mln

43 

43 

44 

44 

43

44 

45 

45 

45 

45

45 

45 

45 

45 

44

43 

42 

42 

43 

44

44 

42 

42 

41 

41

42 

43 

43 

44 

44

43

December

max

45 

44 

43 

43 

43

43 

42 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

42 

42 

42 

41

40 

41 

41 

41 

41 

41

42

mln

44 

43 

43 

43 

43

42 

41 

41 

40 

41

41 

41 

41 

40 

40

41 

41 

41 

41 

41

41 

41 

42 

41 

40

39 

40 

41 

41 

41 

40

41

January

max

40 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

38 

37 

38 

38

36 

36 

38 

39 

40

40 

40 

41 

41 

41 

41

39

min

39 

38 

38 

38 

38

39 

39 

39 

39 

38

38 

39 

39 

38 

38

38 

37 

37 

37 

36

36 

36 

36 

38 

39

40 

40 

40 

41 

41 

41

38

February

max

41 

41 

41 

42 

42

42 

42 

42 

42 

41

42 

41 

40 

41 

41

41 

40 

40 

39 

39

39 

38 

38 

39 

39

40 

40 

40 

41

40

min

41 

41 

41 

41 

42

42 

42 

41 

41 

41

41 

40 

40 

40 

40

40 

40 

39 

38 

38

38 

36 

36 

38 

39

39 

40 

40 

40

40

March

max

40 

40 

40 

40 

40

40 

40 

40 

40 

41

40 

40 

41 

40 

41

41 

41 

40 

40 

40

41 

41 

40 

40 

41

42 

42 

42 

41 

41 

42

41

min

40 

39 

39 

39 

39

39 

39 

39 

40 

40

40 

40 

40 

40 

40

40 

40 

39 

39 

39

39 

39 

40 

40 

40

41 

41 

41 

41 

41 

41

40

April

max

42 

42 

43 

44 

43

43 

43 

43 

43 

44

43 

44 

43 

43 

44

43 

44 

44 

43 

43

44 

45 

45 

44 

45

45 

43 

42 

42 

42

43

min

41 

41 

41 

41 

42

42 

42 

41 

41 

41

42 

42 

42 

42 

42

42 

42 

42 

42 

41

41 

42 

42 

42 

43

42 

42 

41 

40 

42

42

May

max

43 

44 

44 

45 

43

44 

44 

44 

45 

46

46 

45 

44 

43 

46

47 

46 

47 

44 

44

45 

47 

48 

48 

48

49 

50 

49 

49 

50 

47

46

m

a Range in temperature from 46"F to 47°F, Oct. -23-25.
WILLAMETTE RIVER BASIN Continued 

NORTH SANTIAM RIVER BELOW BOULDER CREEK NEAR DETROIT, ORE

LOCATION: Temperature recorder at gaging station, half a mile downstream from Boulder Creek an

DRAINAGE AREA. 216 square miles.

RECORDS AVAILABLE. Water temperatures: April 1951 to September 1952.

EXTREMES, 1951 -52. Wnter temperatures: Minimum, 33"F Jan. 2, 3.

EXTREMES, 1950-52. Water temperatures: Maximum 59°F July 18, 22-24, 27, Aug. 1, 1951; July 28

period of missing record; minimum, 33"F Jan. 2, 3, 1952. 

REMARKS. Record of discharge for water year 1951-52 given in WSP 1288.

Temperature (*F) of water, water year October 1951 to September 195

Day

7 . ........

10 ....... - .

11 . .. ...

13 - ....... ......

1 e

1 11

19

22

24 ...... _ --- _ ......

net

28

29

Average 

October

max

48 

48 

48 

47 

47

47 

47 

47 

47 

47

46 

46 

46 

46 

46

45 

44 

43 

44 

44 

44 

43 

43 

43 

43

42

41 

41 

42 

42 

41

45

rain

48 

48 

47 

46 

45

46 

46 

46 

46 

46

46 

46 

46 

46 

45

44 

42 

42 

43 

44

43 

42 

42 

42 

42

40 

40 

40 

41 

41 

40

44

November

mftx

41 

40 

42 

43 

42

41 

43 

43 

43 

43 

43 

42 

42 

41 

41

40 

39 

39 

40 

40

40 

40 

39 

38 

39

40 

40 

40 

40 

40

41

mm

39 

39 

40 

42 

40

40 

41 

41 

42 

43

42 

42 

41 

41 

39

39 

38 

38 

39 

40

40 

39 

38 

37 

37

39 

40 

40 

40 

40

40

December

max

40 

40 

39 

39 

39

38 

38 

37 

37 

38

38 

38 

38 

37 

38

38 

38 

38 

37 

37

37 

38 

38 

38 

36

36 

37 

38 

38 

36 

36

38

min

40 

39 

39 

39 

38

38 

3^7 

36 

36 

37

38 

38 

37 

36 

36

38 

38 

37 

37 

37

37 

37 

38 

36 

35

35 

36 

37 

36 

36 

36

37

January

max

36 

34 

34 

36 

37

37 

37 

37 

37 

36

37 

37 

36 

36 

37

37 

36 

36 

36 

36

35 

34 

36 

37 

37

38 

38 

38 

38 

38 

38

37

min

34 

33 

33 

34 

36

37 

36 

36 

36 

35 

36 

36 

36 

38 

36

36 

34 

34 

36 

35

34 

34 

34 

36 

37

37 

38 

37 

37 

38 

37

36

February

max

37 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

37 

38 

38

38 

37 

37 

36 

36

36 

36 

37 

38 

38

39 

39 

38 

38

38

min

37 

37 

38 

38 

38

38 

38 

38 

37 

37

38 

37 

36 

37 

37

37 

36 

36 

36 

36

36 

35 

35 

37 

37

38 

38 

37 

37

37

March

max

38 

37 

37 

38 

38

38 

39 

38 

39 

39

38 

39 

39 

38 

40

39 

39 

38 

38 

40 

41 

41 

41 

40 

41

43 

43 

41 

41 

41 

42

39

min

37 

37 

37 

37 

37

36 

38 

37 

38 

38 

37 

38 

38 

38 

38

37 

37 

37 

37 

37

39 

38 

40 

40 

40

41 

40 

41 

41 

41 

40

38

April

max

42 

42 

44 

45 

44

44 

43 

43 

44 

44

44 

44 

42 

43 

45

44 

46 

45 

42 

44

45 

46 

45 

44 

45

45 

43 

42 

43 

40

44

min

40 

41 

41 

41 

41

41 

41 

40 

40 

40

41 

41 

42 

42 

41

41 

41 

41 

41 

41

40 

42 

41 

42 

42

42 

42 

41 

40

40

41

May

max

43 

43 

44 

44 

43

44 

44

44 

47 

47

45 

46 

44 

43 

47

48 

47 

47 

45 

44

44

48 

48 

48 

48

49 

50 

48 

48 

49 

48

46
WILLAMETTE RIVER BASIN Continued 

BREITENBUSH RIVER ABOVE CANYON CREEK NEAR DETROIT, 

LOCATION. Temperature recorder at gaging station, 600 feet upstream from mouth of Canyon Cr

DRAINAGE AREA. 106 square miles.

RECORDS AVAILABLE Water temperatures: December 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 58°F Aug. 4, 13, 14; minimum, 34°F Jan 3, 

EXTREMES, 1950-52. Water temperatures: Maximum, 58*F July 17, 1951, Aug. 4, 13, 14, 1952; 

REMARKS. Records of discharge for water year 1951-52 for Breitenbush River above French Cr

Temperature (*F) of water, water year October 1951 to Septemb

Day

A

11 .......

15 - 

18 - -« ...»

19 .......

net

October

max

49 

49 

49 

48 

47

47 

48 

48 

47 

47

47 

47 

47 

47 

47

46 

45 

44 

45

45

45

44 

44 

44 

44

43 

42 

42 

43 

43 

41

46

mln

49 

49 

48 

47 

46

46 

47 

47 

47 

47

47 

47 

47 

47 

46

45 

44

43

44 

45

44 

44

44 

44 

43

42 

42 

42 

42 

41 

41

45

November

max

41 

40 

41 

42 

42

41 

42 

42 

42 

42

42 

42 

42 

41 

41

41 

41 

41 

41 

42

42 

42 

42 

41 

40 

42 

42 

42 

42 

42

42

min

39 

39 

40 

41 

40

40 

41 

42 

42 

42 

42 

42 

41 

41 

41

41 

41 

41 

41 

41

41 

42 

41 

40 

40

40 

42 

42 

42 

42

41

December

RIA-X

43 

43 

43 

42 

42

41 

41 

40 

39 

39

38 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

39 

39 

39 

37

36 

38 

38 

38 

38 

37

39

min

42 

43 

42 

42

41

41 

40 

39 

38 

37

38 

38 

38 

37 

37

38 

38 

38 

38 

38

38 

38 

39 

37 

36

36 

36 

38 

38 

37 

37

38

January

max

37 

35 

35 

36 

37

38 

38 

37 

37 

37

37 

36 

36 

36 

36

36 

36 

35 

36 

36

35 

34 

36 

36 

37

37 

38 

38 

38 

38 

38

37

tain

35 

34 

34 

35 

36

37 

37 

37 

37 

36 

36 

36 

36 

36 

36

36 

34 

34 

35 

35

84 

34 

34 

36 

36 

37 

37 

38 

38 

38 

38

36

February

.,»**,

38 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

38 

38 

38

38 

38 

38 

37 

36

47 

37 

36 

38 

38

39 

39 

39 

38

36

Win

38 

38 

39 

39 

39

39 

39 

39 

39 

39

39 

38 

37 

37 

38

38 

38 

37 

38 

36

36 

35 

35 

36 

38

38 

39 

38 

38

38

March

max

38 

38 

38 

38 

38

38 

39 

39 

38 

39

39 

39 

39 

39 

40

39 

39 

38 

38 

38

39 

39 

39 

39 

39

41 

41 

40 

40 

40 

40

39

mln

38 

38 

3R 

38 

38

38 

38 

38 

38 

38

39 

39 

39 

39 

39

38 

38 

38 

38 

38

38 

38 

39 

39 

39 

39 

40 

40 

40 

40 

40

39

April

max

40 

40 

41 

41 

41

41 

41 

40 

41 

42

42 

42 

41 

41 

42

42 

43 

43 

42 

42

43 

43 

43 

42 

44

44 

42 

41 

41 

41

42

mln

40 

40 

40 

40 

40

40 

40 

39 

40 

40

40 

40 

41 

41 

41

40 

40 

41 

41 

40

40 

41 

40 

41 

41 

41 

41 

41 

40 

41

40

ma

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4
WILLAMETTE RIVER BASIN Continued 

WILLAMETTE RIVER AT SALEM, OREG.

LOCATION. At bridge on Oregon Highway 22, 300 feet downstream from gaging station at Salem, Marion Co

DRAINAGE AREA. 7,280 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: August to December 1910, August 1911 to August 1912, February 

Water temperatures: February 1951 to September 1952. 

EXTREMES, 1951-52. Dissolved solids: Maximum, 64 ppm Sept. 21-30; minimum, 43 ppm Apr. 21-30.

Hardness: Maximum, 28 ppm Aug. 11-20; minimum, 16 ppm Dec. 1-10.

Specific conductance: Maximum daily, 92.7 micromhos Sept. 7; minimum daily, 36.8 micromhos, Feb. 5.

Water temperatures: Maximum observed, 75°F July 14-15, 30, Aug. 1, Sept. 2; minimum observed, 40°F 

EXTREMES, Feb. 1951-Sept. 1952. Dissolved solids: Maximum, 65 ppm July 11-31. Sept. 16-20, 24-29, 19

Hardness: Maximum, 28 ppm Sept. 16-20, 24-29, 1951, Aug. 11-20, 1952; minimum, 16 ppm Dec. 1-10, 19

Specific conductance: Maximum daily, 92.7 micromhos Sept. 7, 1952; minimum daily, 36.S micromhos Fe

Water temperatures: Maximum observed, 75°F on many days during summer months.

REMARKS. Values reported for dissolved solids are residues on evaporation. Records of specific condu

fice at Portland, Oregon. Records of discharge for water year October 1951 to September 1952 given 

Chemical analyses, in parts per million, water year October 1951 to Se

Date of collection

Oct. 1-10, 1951.

Oct. ll-2fr.....

Oct. 21-31 .....

Nov. 1,5-6, 8-10

Nov. 11-20.....

Nov. 21-30.....

Dec. 1-10., ..,

Dec. 11-18.....

Jan. 7-15, 1952

Feb. 4-29

Mar. 3-8,10,12-

15,24,27-28,31

Apr. 1-5,7,15-17

Apr. 21-30.....

May 1-10 ......

May 11-20.

May 21-31......

June 1-10 ......

June 11-20..... 

June 21-30 .....

Mean 

discharge 

(cfs)

12, 560

13,160

37,150

11,440

42,420

32, 130

95, 220

33,540

36,020

51,970

34,010

36,240

28,670

22,460

25,270

22 970

16, 590

14,040 

14. 730

Silica 

(SiO,)

16

15

15

18

16

18

16

17

17

16

16

15

15

16

14

16

15

16 

17

Iron 

(Fe)

0.07

.02

.09

.09

.08

.14

.11

.07

.09

.07

.08

.06

.04

.05

.04

.07

.06

.05 

.07

Calcium 

(Ca)

5.1

5.1

4.6

5.5

4.8

5.2

4.4

4.8

5.0

4.8

5.2

5.1

5.1

5.3

5.1

4

0 . 3

4. 5

4! 7 

4.6

Magnesium 

(Mg)

2.1

2.1

2.2

2.1

2.3

1.2

1.2

1.9

2.2

2.1

2.0

2.1

1.8

2.1

1.8

1.5

1.7

1.7 

2.0

Sodium 

(Na)

3.6

3.4

3.0

3.7

3.3

3.4

3.0

3.4

4.8

4.3

4.0

2.9

4.8

3.0

2.4

3.0

3. 2

3.3 

3.3

Potassium 

(K)

1.8

1.4

1.4

1.5

1.4

1.6

1.3

1.2

1.0

.9

1.2

.8

1.0

1.2

1.0

.7

.6

.7

Bicarbonate 

(HCO,)

28

26

24

30

26

27

23

26

30

28

30

27

30

28

24

27

26

27 

28

Sulfate 

(S04)

3.2

2.1

2.5

3.0

2.8

2.9

2.5

3.1

3.5

3.0

3.2

3.5

2.8

2.5

2.8

1.7

2 9 £

2.6 

1.8

Chloride 

(Cl)

2.2

2.0

2.1

2.8

2.2

2.6

2.4

2.8

3.2

2.6

2.9

1.8

2.0

2.4

2.1

1

0

2

n

2.3 

1.8

Fluoride 

(F)

0.3

.3

.3

.3

.3

.3

.4

.1

.3

.3

.3

.2

.2

.3

.2

-

Nitrate 

(NO,)

0.5

.6

.6

.4

.4

1.0

1.0

1.1

1.4

1.0

.8

.5

.2

.6

.2

.3

.3

.4 

.4

Boron 

(B)

_

0.08

..

.08

.02

.05

.02

.02

.02

..

_

.03

~

(

Par

pe

mi

lio
July 1-10, 1952.

July 21-31 .....

Aug. 11-20..... 

Aug. 21-31..... 

Sept. 1-10 ..... 

Sept. 11-20 .... 

Sept. 21-30 ....

Weighted average

18,950

6,409

5,440 

5,160 

5,031 

5,301 

4,890

a24,740

17

18

17 

16 

16 

16 

15

16

.08

.06 

03

.05 

.08 

.11 

.05 

.06

0.08

4.8

5

0

6.0

7.1 

7.2 

6.6 

6.8 

6.8

4.9

1.9

2.3

2.5 

2.3 

2.3 

2.4 

2.3

1.9

3.5

4.9

5.6 

5.2 

5.3 

5.3 

5.3

3.7

.7

1.6

1.3 

1.5 

1.5 

1.2 

1.1

1.1

29

34

35 

34 

34 

36 

32

27

2.1 

2.6

3.2

3.5 

3.2 

2.5 

3.3 

3.3

2.8

2.2

3.4 

4.0

3.8 

3.6 

4.2 

3.8 

4.0

2.5

.1 

.1

.3 

.2 

.4 

.3 

.3

0,3

.5 

.4

.4 

.5

.7 

.6 

.6 

.7 

.8

0.7

--

.04

.05 

.09

a Represents 72 percent of runoff for water year October 1951 to September 1952 .
324 PACIFIC SLOPE BASINS IN OREGON AND LOWER COLUMBIA RIVER BASIN

WILLAMETTE RIVER BASIN Continued

WILLAMETTE RIVER AT SALEM, OREG. Continued

Temperature (°F) of water, water year October 1951 to September 1952

Day

1 

2

3

4

5

6

7

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

Oct.

60

56

57

56

. 

_

59

56

55

55

54

54

54

52

50

50

50

50

50

51

50

47

47

Nov.

48

_

51

50

52

51

51

49

48

47

47

46

46

45

47

47

"

47

48

48

Dec.

48

47

~

..

43

_

42

43

43

43

_

Jan.

--

_

~

._

42

43

43

44

41

42

41

41

_

_

-_

_

Feb.

-

_

46

46

45

46

_

46

45

_

_

_

42

41

40

43

44

_

44

45

45

~

Mar.

--

45

45

44

_

_

46

_

47

..

45

46

46

47

_

_

__

_

48

~

_

49

49

_

46

Apr.

48 

48

51

52

52

_

53

_

_

_

_

61

54

54

_

50

54

54

53

53

_

46

46

47

47

Hay

48

51

_

53

49

55

_

55

56

56

56

55

55

54

57

59

60

58

55

56

57

59

60

62

62

60

58

58

_

58

56

June

58 

62

62

64

69

58

63

63

61

58

57

58

56

56

61

64

67

67

--

63

62

62

61

61

_

_

62

62

57

61

July

63

62

61

62

_

69

72

74

74

73

72

_

75

75

_

72

72

71

~

69

70

69

70

_

_

74

74

75

74

Aug.

75

_

_

72

72

74

74

73

74

73

73

73

72

69

69

70

68

69

70

70

69

68

66

66

66

65

67

68

69

69

70

Sept.

69

75

71

68

67

65

65

63

63

64

68

66

64

64

64

69

_

69

70

70

70

71

70

69

68

67

66

65

_

65

67
LEWIS RIVER BASIN 

LEWIS RIVER AT ARIEL, WASH.

LOCATION. Temperature recorder at gaging station, at Ariel, Cowlitz County, half a mile down

upstream from Cedar Creek. 

DRAINAGE AREA. 731 square miles.

RECORDS AVAILABLE. Water temperatures: October 1950 to September 30, 1952. 

EXTREMES, 1951-52. Water temperatures: Minimum, 39"F Jan. 11-31, Feb. 1-9, 1952.

EXTREMES, 1950-52. Water temperatures: Maximum, 61 "F Oct. 2-5, 1951; minimum, 37°F Feb. 6-1

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 124

Temperature (°F) of water, October 1951 to April 1952

Day

2

4 ... __ ..... .....

12

1 R

on _

99

O«

24

on

29

on

31 

Average 

October

max

60 

61 

61 

61 

61 

60 

(a) 

(a) 

(a) 

(a)

57 

57 

57 

57 

57 

56 

56 

56 

56 

56

55 

55 

55 

55 

55

S3 

52 

51 

51 

51 

51

56

min

59 

60 

61 

61 

60 

59 

(a) 

(a) 

(a) 

(a)

57 

57 

57 

57 

56 

56 

56 

56 

56 

55

55 

55 

55 

55 

53

52 

51 

51 

51 

50 

50

56

November

max

51 

51 

51 

51 

51 

50 

50 

50 

49 

49

49 

49 

49 

49 

49 

49 

49 

49 

49 

49

49 

49 

47 

47 

47

47 

47 

47 

46 

46

49

min

49 

49 

51 

51 

50 

50 

50 

49 

49 

49

49 

49 

49 

49 

49 

48 

49 

49 

49 

49

49 

47 

47 

47 

46

47 

47 

46 

46 

46

48

December

max

46 

45 

45 

45 

45 

45 

45. 

45 

45 

45

45 

45 

45 

45 

44 

43 

43 

43 

43 

43

42 

43 

42 

42 

42

42 

42 

42 

42 

42 

42

44

min

45 

45 

45 

45 

45 

45 

45 

45 

45 

45

45 

45 

45 

44 

43 

43 

43 

42 

42 

42

42 

42 

42 

42 

42

42 

42 

42 

42 

42 

42

43

January

max

42 

41 

41 

40 

41 

41 

41 

41 

41 

41

40 

40 

39 

39 

39 

40 

39 

39 

39 

40

39 

39 

39 

39 

39

40 

41 

39 

30 

39 

40

40

min

41 

41 

40 

40 

40 

41 

41 

41 

41 

40

39 

39 

39 

39 

39 

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39 

39

40

February

max

41 

39 

40 

39 

39 

39 

39 

40 

40 

41

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41

41

min

39 

39 

39 

39 

39 

39 

39 

39 

39 

40

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

41 

41 

41

41 

41 

41 

41

40

March

max

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

42 

42 

42

42 

42 

42 

42 

43 

43

41

min

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

41 

41 

41 

41 

41 

41 

41 

41

41 

41 

41 

42 

42

42 

42 

42 

42 

42 

42

41

April b

max

43 

43 

43 

43 

44 

45 

43 

43 

43 

43

43 

44 

44 

44 

44 

44 

44 

44 

44 

44

44

--

min

43

43 

43 

43 

43 

43 

40 

42 

43 

43

43 

43 

43 

44 

44 

44 

44 

44 

44 

44

44

"

M

max 

a No temperature record.

b No temperature record Apr. 22-Sept. 30, 1952.
LEWIS RIVER BASIN Continued 

EAST FORK LEWIS RIVER NEAR HEISSON, WASH.

LOCATION. Temperature recorder at gaging station, downstream from Basket Creek, 1J miles north

upstream from mouth. 

DRAINAGE AREA. 125 square miles.

RECORDS AVAILABLE. Water temperatures: June 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 74°F Aug. 4, 1952; minimum 35°F Jan 3 1952 

EXTREMES, 1950-52. Water temperatures: Maximum, 74"F Aug. 4, 1952; minimum, 33°F Jan. 31, Feb

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F> of water, water year October 1951 to September 

Day

g

12

ic

on

21

no

24

97

90

29

31 

Average -

October

max

55 

54 

53 

51 

51

53 

53 

55 

54 

54

54 

54 

53 

53 

51

49 

49 

49 

50 

50

49 

49 

49 

49 

49 

47 

47 

47 

48 

47 

45

51

mln

54 

53 

51 

51 

49

51 

51 

53 

54 

54

54 

53 

53 

51 

49

49 

47 

48 

49 

49

49 

49 

49 

49

47

46 

46 

46

47 

45 

44

50

November

max

44 

44 

46 

46 

47

45 

46 

47 

47 

46

46 

46 

46 

46 

45

44 

43 

42 

43

44

44 

44 

44 

42 

44 

44 

44 

44 

44 

46

45

mln

42 

42

44 

46 

44

44 

45 

46 

46 

46

46 

46 

46

45 

44

43 

42 

42 

42 

43

44 

44 

42 

42 

42

44 

44 

44 

44 

44

44

December

max

46 

45 

45 

45 

45 

44 

43 

42 

42 

43

43 

43 

43 

41 

42

43 

43 

43 

42 

42

43 

44 

44 

42 

41 

39 

40 

41 

41 

41 

41

43

rain

45 

45 

45 

45 

44

43 

42 

42 

41 

41

43 

43 

41 

40 

40

42 

43 

42 

42 

42

42 

43 

42 

41 

39 

38 

38 

40 

41 

41 

40

42

January

max

40 

37 

36 

37 

38 

39 

39 

39 

39 

39

39 

39 

39 

38 

39

39 

39 

38 

39 

39

38 

38 

38 

40 

40 

41 

41 

42 

42 

42 

41

39

mln

37 

36 

35 

36 

37

38 

39 

39 

39 

39

39 

39 

39 

38 

38

39 

37 

37 

38 

38

38 

38 

38 

38 

39

40 

41 

40 

42 

42 

41

39

February

max

41 

41 

42 

42 

43 

43 

42 

41 

43 

43

42

41 

39 

39 

40

40 

40 

40 

39 

38

38 

38 

38 

40 

40

42 

42 

41 

41

41

min

41 

41 

41 

42 

41

41 

41 

40 

41 

41

42 

39 

38 

39 

39

40 

40 

39 

37 

37

38 

38 

37 

38 

40

40 

41 

40 

41

40

March

max

40 

39 

39 

39 

39

40 

41 

42 

42 

42

41 

41 

41 

41 

43

43 

43 

41 

41 

41

43 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

--

mln

39 

39 

39 

39 

39

39 

39 

39 

42 

41

40 

40 

41 

41

41

41 

41 

39 

39 

41

41 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

--

April

max

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

49 

49 

48 

47 

45 

44 

47

--

min

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a)

a

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

45 

45 

46 

45 

43 

40 

45

'-

May

max

47 

48 

50 

50 

50

49 

50 

50 

52 

55

54 

54 

54 

52 

51

57 

56 

55 

55 

53

52 

56 

57 

58 

57 

58 

60 

60 

53 

55 

55

54

m

a Recorder stopped; range In temperature from Mar. 22 to Apr. 23, 41°F to 50°F.
COWLITZ RIVER BASIN 

CISPUS RIVER NEAR HANDLE, WASH.

LOCATION. Temperature recorder at gaging station, 60 feet upstream from bridge to Tower Rock ra

Fork and 8 miles southeast of Handle, Lewis County. 

DRAINAGE AREA.--323 square miles.

RECORDS AVAILABLE.--Water temperatures: May 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 61*F Aug. 4, 9, 10, 12, 1952; minimum, 35*F J

EXTREMES, 1950-52.--Water temperatures: Maximum, 61*F Aug. 4, 9, 10, 15, 1952; minimum, 35°F J

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 19

Day

g

13

1R

1 ft

19

9/\

91

99

90

25

90

90

on

01

Average 

October

max

50 

50 

50 

51 

49

52 

53 

53 

53 

51 

50 

49 

SI 

49 

47

47 

46 

46 

47 

47

45 

45 

44 

45 

44

44 

44 

45 

45 

44 

42

48

min

50 

50 

49 

48 

47

49 

49 

49 

49 

49 

49 

49 

49 

47 

47

46 

44 

45 

46 

45

45 

44 

44 

44 

43

43 

43 

43 

44 

42 

41

46

November

max

41 

42 

44 

45 

43

44 

45 

45 

45 

45 

45 

43 

41 

42 

42

41 

41 

41 

42 

43

42 

43 

42 

40 

41

41 

42 

42 

42 

43

43

min

40 

40 

42 

43 

42

43 

44 

45 

44 

44 

43 

40 

40 

41 

41

40 

40 

41 

41 

42

42 

42 

40 

39 

40

41 

41 

42 

42 

42

42

December

max

43 

42 

42 

41 

41

40 

40 

39 

39 

41 

41 

41 

41 

39 

39

40 

40 

40 

39 

39

39 

39 

39 

38 

37

37 

39 

39 

39 

38 

38

40

min

42 

42 

41 

41 

40

40 

39 

39 

39 

39 

41 

40 

39 

39 

39

39 

40 

39 

39 

39

39 

39 

38 

37 

37

37 

37 

39 

38 

38 

37

39

January

max

37 

35 

36 

37 

37

38 

38 

39 

39 

37 

37 

37 

36 

37 

38

38 

37 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

--

min

35 

35 

35 

36 

37

37 

38 

38 

37 

37 

37 

36 

35 

35 

37

37 

35 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

-

February

max

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

41 

43 

41 

41

--

min

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

40 

40 

39 

40

--

March

max

40 

39 

41 

40 

41

41 

42 

42 

41 

41 

41 

41 

41 

41 

42

43 

41 

41 

41 

42

44 

44 

43 

42 

42

44 

44 

42 

41 

41 

41

42

min

39 

39 

39 

40 

39

39 

39 

39 

41 

41 

40 

39 

40 

40 

39

39 

40 

39 

39 

39

40 

39 

41 

42 

41

41 

40 

41 

40 

40 

40

40

April

max

42 

42 

44 

47 

47

45 

43 

43 

45 

45 

44 

45 

43 

44 

45

45 

46 

46 

43 

45

46 

46 

45 

46 

46

45 

43 

42 

42 

43

44

min

40 

41 

41 

41 

42

42 

39 

39 

40 

41 

42 

41 

42 

42 

41

41 

42 

42 

41 

41

41 

42 

41 

43 

43 

43 

43 

41 

40 

42

41

May

max

43 

44 

45 

46 

43

45 

46 

45 

47 

47 

45 

47 

45 

44 

47

48 

47 

47 

46 

44

44 

47 

47 

49 

48

49 

49 

47 

46 

47 

47

46

m

a Recorder stopped; range in temperature from Jan. 18 to Feb. 25, 37°Fto41°F.
COWLITZ RIVER BASIN--Continued 

RAINY CREEK NEAR KOSMOS, WASH.

LOCATION.--Temperature recorder at gaging station at county bridge. 2 miles northeast of Kosmos

DRAINAGE AREA. 17.5 square miles.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52.--Water temperatures: Maximum, 67"F Aug. 12, 1952; minimum, 37°F Jan. 1. 2, 

EXTREMES, 1950-52. Water temperatures: Maximum, 67°F Aug. 12, 1952; minimum, 36°F Jan. 28, 29

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 19

Day

2

18 ...................

23

25

27 *

OQ

31 ...................

Average 

October

55 

54 

53 

52 

51

53 

54 

55 

55 

54

53 

53 

52 

52 

50

49 

48 

47 

49 

49

47 

46 

46 

47 

47

45 

(b) 

(b) 

(b) 

(b) 

(b)

51

54 

53 

51 

50 

48 

51 

51 

53 

53 

52

53 

52 

51 

50 

48

48 

47 

47 

47 

47

46 

46 

46 

46 

44

44 

(b) 

(b) 

(b) 

(b) 

(b)

49

November

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

47 

47 

47

47 

46 

45 

45 

45

43 

44 

45 

45 

45

44 

44 

44 

42 

43

45 

44 

44 

44

45

--

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

47 

46 

47 

46 

45 

45 

44 

4S

4S 

43 

43 

45 

45

43 

44 

42 

41 

41

43 

43

44 

44 

44

--

December

45 

44 

44 

43 

43 

43 

42 

42 

42 

43

43 

43 

43 

41 

41

43 

43 

42 

41 

41

41 

42 

42 

41 

41

38 

41 

41 

41 

41 

40

42

44 

44 

43 

43 

43

42 

41 

41 

41 

42

43 

49

41 

41 

41

41 

42 

41 

41 

41

41 

41 

41 

40 

38

39 

30 

41 

41 

40 

38

41

January

38 

37 

(b) 

(b) 

(b) 

<b) 

(b) 

40 

41 

40 

40 

40 

39 

39 

40

40 

39 

39 

40 

40

39 

39

39 

41 

41

41 

41 

41 

43 

43 

41

40

37 

37 

(b) 

(b) 

(b)

(b) 

(b) 

40 

40 

40

40 

39 

37 

39 

39

39 

37 

39 

39 

39

39 

39 

37 

39 

40

41 

41 

40 

41 

42 

40

39

February

42 

42 

42 

41 

42

42 

42 

41 

42 

42

42

41 

40 

40 

41

41 

40 

40 

40 

40

40 

39 

41 

42 

42

43 

43 

42

41

41

41 

42 

41 

41 

40

40 

40 

40 

40 

41

40 

40 

38 

40 

40

40 

39 

38 

39 

39

38 

38 

39 

39 

41

42 

42 

SB 

41

40

March

42 

41 

41 

41 

41

42 

43 

43 

43 

43

42 

42 

42 

43 

44

43 

43 

42 

42 

43

44 

45 

44

45 

43

45 

47 

45 

42 

42 

43

43

39 

39 

40 

41 

39 

40 

39 

39 

43 

41

40 

40 

41 

41 

40

39 

41 

40 

39 

40

40 

38 

43 

43 

43

43

42 

42 

41 

41 

40

41

April

45 

43 

45 

50 

49 

48 

45 

46 

48 

49

45 

47 

45 

46 

49

49 

51 

49 

45 

49

52 

50 

52 

50 

51

50 

47 

46 

44 

48

48

41 

42 

41 

42 

43

43 

39 

39 

41 

41 

43 

42 

44 

43 

42

43 

43 

44 

43 

41

44 

45 

44

45 

46

46 

46 

44

42 

44

43

May

47 

49 

50 

50 

48

49 

49 

48 

52 

51

49 

52 

49

48 

51

54 

53 

53 

SO 

48

49 

53 

55 

55 

55

55 

58 

56 

51 

54 

52

51

a Recorder stopped; range in temperature from Oct. 27 to Nov. 7, 41 °F to 47°F. 

b Recorder stopped; range in temperature from Jan. 3-7, 37°F to 40°F.
COWLITZ RIVER BASIN Continued 

WEST FORK TILTON RIVER NEAR MORTON, WASH.

LOCATION. Temperature recorder, at gaging station three-quarters of a mile above mouth and 4 

DRAINAGE AREA. 16.4 square miles.

RECORDS AVAILABLE. Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 66'FAug. 12, 1952; minimum, 34'F Jan. 13, 2

EXTREMES, 1950-52. Water temperatures: Maximum, 66°F Aug. 12, 1952; minimum, 34°F Jan. 13, 2

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248

Temperature (°F) of water, water year October 1951 to September 19

Day

4 _ _

Q

12 - ... ....

17 - - - 

20 -- -- -

23

OR

26 - -

28

29 --

Average ........

October

max

(a) 

(a) 

(a) 

49 

49 

49 

50 

51 

51 

51

51 

51 

50 

50 

48 

47 

46 

46 

47 

47

46 

46 

45 

45 

45

45 

45 

45 

45 

44 

43

47

min

(a) 

(a) 

(a) 

49 

48 

49 

49 

50 

51 

51

51 

51 

50 

48 

47

46 

46 

46 

46 

46

46 

45 

45 

45 

45

44 

44 

45 

44 

43 

43

47

November

max

42 

42

44 

44 

44 

45 

45 

45 

45 

45

45 

45 

45 

44 

44

43 

43 

43 

43 

43

43 

43 

43 

41 

42 

42 

42 

42 

42 

44

43

min

41 

41 

42 

44 

43 

44 

45 

45 

45 

45

45 

45 

44 

44 

43

43 

43 

43 

43 

43

43 

43 

42 

40 

40

42 

42 

42 

42 

42

43

December

max

44 

43 

42 

42 

42 

42 

41 

40 

40 

40

40 

40 

40 

40 

40

40 

40 

39 

40 

40

40 

40 

40 

40 

39 

37 

38 

38 

38 

37 

37

40

min

43 

42 

42 

42 

42 

41 

40 

40 

40 

40

40 

40 

40 

39 

38

39 

38 

38 

39 

39

38 

39 

40 

39 

38

37 

37 

38 

37 

37 

35

39

January

max

35 

35 

35 

36 

36 

36 

36 

36 

36 

36

36 

36 

35 

35 

36

36 

36 

35 

35 

35

35 

35 

35 

36 

37 

37 

38 

38 

39 

39 

39

36

min

35 

35 

35 

35 

36 

36 

35 

35 

36 

36

36 

35 

34 

35 

35

36 

35 

35 

35 

35

34 

35 

34 

35 

36

37 

37 

38 

38 

37 

39

36

February

max

39 

40 

40 

40 

40 

40 

40 

40 

40 

40

40 

39 

39 

39 

39

39 

39 

39 

38 

37

36 

37 

37 

38 

38

38 

38 

38 

38

39

min

39 

39 

40 

39 

39 

40 

40 

40 

40 

40

39 

39 

38 

39 

39

39 

38 

37 

37 

36

36 

35 

37 

37 

38

38 

37 

37 

38

38

March

max

38 

38 

38 

37 

38 

38 

39 

39 

39 

39

38 

39 

39 

40 

40

40 

40 

39 

40 

40

40 

40 

41 

41 

41

42 

42 

41 

40 

40 

40

40

min

37 

37 

37 

37 

37 

37 

37 

37 

39 

37

37 

38 

38 

39 

39

39 

39 

39 

39 

39

38 

38 

40 

40 

40

40 

40 

40 

40 

39 

39

38

April

max

41 

41 

41 

44 

44 

43 

41 

42 

43 

44

43 

44 

43 

43 

44

44 

45 

44 

43 

44

45 

45 

45 

45 

46

44 

43 

43 

41 

43

43

min

40 

40 

40 

40 

42 

41 

39 

39 

40 

41

42 

41 

42 

42 

41

41 

42 

42 

41 

41

41 

43 

41 

43 

43

43 

43 

41 

40 

41

41

May

max

42

44 

44 

43 

44 

44 

45 

44 

48 

47

46 

47 

46 

45 

46

49 

47 

47 

45 

45

45 

48 

49 

50 

49

51 

52 

49 

47 

49 

47

47

m

a No temperature record.
COWLITZ RIVER BASIN Continued 

COWLITZ RIVER NEAR MAYFIELD, WASH.

LOCATION. Temperature recorder at gaging station, 1 mile upstream from Mill Creek, 2 miles downs

of Mayfield, Lewis County. 

DRAINAGE AREA. 1,400 square miles.

RECORDS AVAILABLE. Water temperatures: October 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 67°F Aug. 5, 9-13, 1952; minimum, 36°F Jan. 2-5

EXTREMES, 1950-52. Water temperatures: Maximum, 67°F Aug. 5, 9-13, 1952; minimum, 35°F Jan. 29-

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 1952

Day

20 . . 

AA

24

no

31 

Average 

October

max

55 

54 

54 

52 

52 

52 

54 

56 

56 

55

54 

54 

53 

53 

52

50 

49 

48 

48 

48

48 

46

45 

45 

44 

46 

46 

46 

45

50

min

54 

54 

52 

52 

51 

52 

52 

54 

54 

54

54 

53 

53 

52 

50

49 

48 

48 

48 

48

46 

46

45 

44 

44 

44 

46 

45 

42

49

November

max

42 

41 

43 

44 

44 

43 

45 

45 

45 

45

45 

45 

45 

43 

43

43 

42 

41 

41 

42

43 

43 

43 

43 

42 

43 

43 

43 

43 

43

43

min

41 

41 

41 

43 

43 

43 

43 

45 

45 

45

45 

45 

43 

43 

43

42

41 

41 

41 

41

43 

43 

43 

42 

12 

42 

43 

43 

43 

43

43

December

max

44 

44 

44 

44 

43 

42 

42 

41 

40 

41

41 

41 

41 

41 

40

41 

41 

41 

41 

41

41 

41 

41 

40 

39 

39 

37 

39 

39 

39 

39

41

min

43 

44 

44 

43 

42 

42 

41 

40 

40 

40

41 

41 

41 

40 

40

40 

41 

41 

41 

41

41 

41 

40 

39 

39 

37 

37 

37 

39 

39 

39

40

January

max

39 

37 

36 

36 

37 

38 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

40 

40 

40 

40 

41 

42 

41

38

min

37 

36 

36 

36 

36 

37 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38

38 

38 

38 

38 

38 

40 

40 

40 

40 

41 

41

38

February

max

42 

42 

42 

42 

42 

43 

43 

43 

43 

44

43 

42 

42 

41 

41

41 

41 

41 

40 

40

40 

40 

40 

41 

41 

41 

42 

42 

42

42

min

41 

42 

42 

42 

42 

42 

43 

43 

43 

43

42

42 

41 

41 

41

41 

41 

40 

40 

40

40 

40 

40 

40 

40 

41 

41 

42 

42

41

March

max

42

41 

41 

41 

41 

41 

42 

43 

43 

43

43 

42 

42 

43 

43

43 

43 

43 

43 

42

43 

45 

45 

45 

46 

46 

47 

47 

46 

44 

43

43

min

41 

41 

41 

41 

41 

41 

41 

41 

43 

43

41 

42 

42 

42 

43

43 

43 

42

42 

42

42 

43

45 

45 

46 

46 

46 

46 

44 

43 

42

43

April

max

44 

44 

46 

49 

50 

50 

47 

45 

47 

48

48 

48 

48

47 

48

48

50 

49 

48

46

48 

4a 

49 

49 

50 

49 

4? 

48 

44 

48

48

min

43 

44 

44 

45 

48 

47 

44 

43 

44 

45

47 

46 

47 

46 

46

47 

47 

48 

45 

44

45 

47 

46 

47 

48 

47 

46 

44 

44 

44

46

May

max

46 

48 

49 

49 

49 

48 

49 

49 

51 

52

52 

50 

50 

49 

48

51 

51 

49 

49 

46

46 

49 

52 

52 

52 

52 

53 

52 

49 

49 

49

50

min

4

4

4

4

4

4

4

4

4

5

5

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4
COWLITZ RIVER BASIN Continued 

TOUTLE RIVER NEAR SILVER LAKE, WASH.

LOCATION. Temperature recorder at gaging station at highway bridge half a mile downstream from 

east of Silver Lake, Cowlitz County. 

DRAINAGE AREA. 474 square miles.

RECORDS AVAILABLE. Water temperatures: October 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 72 °F Aug. 4, 1952; minimum, 33°F Jan. 1-3, 1952

EXTREMES, 1950-52. Water temperatures: Maximum, 72°F Aug. 4, 1952; minimum, 33°F Jan. 1-3, 1952

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 1952

Day

4 . .

12

13

on

21

oo

OK

ne

31 

Average 

October

max

55 

55 

53 

52 

51 

54 

54 

55 

54 

53

53 

53 

53 

53 

50 

50 

48 

49 

50 

49

48 

47 

47 

47 

46

45 

45 

46 

47 

45 

43

50

mln

55 

53 

52 

51 

50 

51 

52 

52 

53 

52

52 

52 

52 

50 

49 

48 

47 

48 

48 

48

47 

47 

47 

46 

45

44 

44 

45 

45 

43 

42

49

November

max

42 

43 

45 

46 

45 

45 

46 

46 

46 

46

46 

45 

45 

44 

43 

42 

41 

42 

42 

43

43 

42 

42 

41 

42 

43 

43 

43 

43 

44

44

min

40 

41 

43 

45 

43 

43 

45 

45 

45 

45

45 

45 

44 

43 

42 

41 

40 

41 

42 

42

42 

42 

41 

40 

40

42 

42 

43 

43 

43

43

December

max

44 

43 

43 

42 

42 

41 

41 

39 

39 

39

39 

39 

39 

38 

39 

39 

39 

39 

39 

39

39 

39 

39 

38 

37

36 

37 

38 

38 

37 

37

39

min

43 

43 

42 

42 

41 

41 

39 

39 

39 

39

39 

39 

38 

38 

38 

39 

39 

39 

39 

39

39 

39 

38 

37 

36

35 

36 

37 

37 

36 

35

39

January

max

35 

33 

34 

35 

36 

37 

37 

37 

37 

38

38 

38 

36 

36 

37 

37 

37 

37 

38 

38

36 

36 

37 

38 

38

40 

40 

40 

41 

41 

41

37

mln

33 

33 

33 

34 

35 

36 

36 

36 

37 

38

38 

36 

36 

36 

36 

36 

36 

36 

37 

36

36 

36 

36 

37 

38

38 

40 

39 

40 

40 

40

37

February

max

41 

41 

41 

41 

41 

42 

42 

40 

41 

41

41 

39 

38 

39 

39 

39 

39 

38 

38 

37

38 

38 

40 

41 

41

41 

41 

41 

41

40

min

41 

41 

41 

41 

40 

41 

40 

39 

40 

40

39 

38 

37 

38 

39 

39 

38 

37 

37 

37

37 

38 

38 

40 

41

41 

41 

40 

40

39

March

max

40 

40 

41 

41 

41 

42 

43 

43 

43 

43

41 

41 

41 

43 

45 

44 

43 

42 

42 

42

44 

45 

45 

44 

44

44 

45 

45 

43 

43 

43

43

min

39 

39 

40 

40 

40 

40 

39 

40 

43 

41

40 

41 

41 

41 

41 

42 

42 

41 

41 

41

41 

41 

44 

44 

43

43 

43 

43 

42 

42 

41

41

April

max

44 

45 

45 

49 

49 

49 

46 

45 

47 

49

48 

48 

47 

47 

49 

49 

51 

50 

49 

49

49 

50 

50 

49 

50

49 

48 

45 

44

47

48

mi'.

42 

43 

43 

43 

45 

45 

41 

41 

42 

43

45 

44 

46 

45 

44 

45 

45 

46 

45 

43

44 

45 

45 

46 

47

47 

45 

43 

42 

44

44

May

max

45 

48 

49 

50 

47 

48 

48 

47 

52 

53

51 

51 

51 

49 

51 

55 

53 

53 

51 

48

48 

53 

54 

55 

55

55 

57 

55 

50 

52 

52

51

min

43 

43 

45 

44 

44 

45 

45 

47 

45 

49

49 

47 

48 

47 

47 

47 

49 

48 

47 

47

46 

46 

48 

49 

49

48 

50 

50 

48 

47 

49

47
COWLITZ RIVER BASIN Continued 

COWLITZ RIVER AT CASTLE ROCK, WASH.

LOCATION. Temperature recorder at gaging station, at highway bridge in Castle Rock, Cowlitz C

and 14 miles upstream from mouth. 

DRAINAGE AREA. 2,238 square miles.

RECORDS AVAILABLE.--Water temperatures: August 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 71°F Aug. 4, 10-12, 1952; minimum, 35°F Jan. 

EXTREMES, 1950-52. Water temperatures: Maximum, 72°FAug. 21, 1951; minimum, freezing point 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248

Temperature (°F) of water, water year October 1951 to September 1

Day

1 

1 9

15 - - 

1 R

19

on

21

90

on

Average 

October

max

57 

56 

55 

54 

53

55 

55 

56

57 

57

56 

55 

55 

55 

55

53 

51 

50 

51 

51

49 

48 

48 

48 

47

47 

47 

47 

48 

48 

46

52

min

56 

55 

54 

53 

53

53 

54 

55 

56 

56

55 

55 

55 

55 

53

51 

50 

49 

49 

49

48 

47 

48 

47 

47

47 

46 

46 

47 

46 

45

51

November

max

45 

44 

45 

46 

46

45 

46 

47 

47 

47

47 

48 

47 

46

45

44 

43 

43 

44 

44

44 

44 

44 

44 

44

45 

45 

45 

45 

46

45

min

44 

43 

43 

45 

45

45 

45 

46 

47 

47

47 

47 

46 

45 

44

43 

42 

42 

43 

44

44 

44 

44 

44 

43

44 

45 

45 

44 

44

44

December

max

46 

46 

44 

44 

44

43 

43 

41 

41 

42

43 

43 

43 

42 

41

42 

42 

43 

42 

41

42 

42 

42 

41 

40

39 

39 

39 

40 

40 

39

42

min

46 

44 

44 

44 

43

43 

41 

41 

41 

41

42 

43 

42 

41 

41

41 

42 

42 

41 

41

41 

42 

41 

40 

39 

38 

39 

39 

39 

39 

38

41

January

max

38 

36 

36 

36 

38

38 

38 

39 

39 

38

38 

39 

39 

38 

39

39 

39 

39 

39 

39

39 

38 

38 

39 

39 

40 

41 

41 

42 

43 

43

39

min

36 

36 

35 

35 

36

38 

38 

38 

38 

38

38 

38 

38 

38 

38

39 

38 

38 

39 

39

38 

38 

38 

38 

39

39 

40 

41 

41 

42 

42

38

February

max

42 

42 

42

41 

41 

41 

41 

42

42 

42 

41 

40 

41

41 

41 

41 

40 

39

38 

38 

39 

40 

41

42 

42 

42 

42

41

min

42 

42 

42

41 

41 

41 

41 

41

42 

41 

40 

40 

40

41 

41 

40 

39 

38

38 

38 

38 

39 

40

41 

42 

42 

41

40

March

max

42 

41 

41 

41 

41

41 

43 

43 

44 

44

43 

43 

43 

44 

45

45 

45 

43 

43 

43

44 

45 

46 

46 

47

47 

47 

46 

45 

44 

42

44

min

41 

40 

41 

41 

41

41 

41 

42 

43 

43

42 

43 

43 

43 

43

44 

43 

43 

43 

43

43 

44 

45 

46 

45

44 

45 

45 

44 

42 

42

43

April

max

43 

45 

47 

47 

48

48 

46 

44 

45 

46

46 

46 

46 

46 

46

47 

48 

49 

49 

46

47 

48 

48 

48 

49

49 

49 

46 

44 

45

47

min

42 

43 

46 

44 

46

46 

44 

44 

44 

45

46 

45 

46 

46 

46

46 

46 

48 

46 

42

45 

47 

47 

48 

48

49 

44 

44 

43 

43

45

Ma

max

46 

47 

47 

48 

48

48 

48 

48 

49 

51

51 

50 

49 

49 

48

51 

51 

51 

49 

49

47 

49 

51 

51 

51

51 

53 

53 

51 

49 

49

49
COWLITZ RIVER BASIN Continued

COWEMAN RIVER NEAR KELSO, WASH.

LOCATION. Temperature records at gaging station 3 miles downstream from Goble Creek, 3.8 mi

miles upstream from mouth. 

DRAINAGE AREA. 119 square miles.

RECORDS AVAILABLE. Water temperatures: July 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 81°F Aug. 4, 1952; minimum, 33°F Jan. 2, 3

EXTREMES, 1950-52. Water temperatures: Maximum, 81°F Aug. 4, 1952; minimum, 33°F Jan. 2, 3

REMARKS.--Records of discharge for water year October 1951 to September 1952 given in WSP 12

Temperature (°F) of water, water year October 1951 to September 

Day

10 

13 . 

10

11 _ .... __ . ___ .... _

AA

An

29 - 

30 

31 

Average , 

October

max

57 

56 

54 

53 

53

55 

56 

55 

55 

54

54 

54 

55 

54 

51

51 

49 

49 

51 

51

49 

48 

49 

49 

48

47 

45 

46 

47 

47 

43

51

mm

56 

54 

53 

51 

49 

52 

52 

51 

53 

52

53 

53 

53 

51 

49

49 

46 

47 

49 

49

47 

48 

48 

48 

45

45 

43 

44 

46 

43 

41

49

November

"max

42 

40 

44 

46 

46 

43 

47 

47 

47 

46

46 

46 

46 

46 

45

43 

42 

43

44 

44

44 

44 

42 

41 

43

46 

45 

45 

45 

47

44

min

38 

39 

40 

44 

42

42 

43 

46 

45 

45

46 

46 

46 

45 

43

41 

41 

42 

43 

44

44 

42 

41 

41 

41

43 

45 

45 

45 

45

43

December

max

47 

45 

45 

45 

45

43 

43 

41 

41 

41

42 

43 

42 

40 

41

42 

42 

42 

42 

41

43 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

39 

38

min

45 

45 

45 

45 

43

43 

41 

41 

40 

40

41 

42 

40 

39 

39 

41 

41 

41 

41 

41

41 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

38 

35

January

max

35 

34 

35 

37 

38

38 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a)

IS

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

min

34 

33 

33 

35 

37

38 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

W

February

max

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a)

44

43 

43 

41 

41 

42

42 

41 

40 

40 

39

39 

39 

41 

42 

43

43 

43 

42 

43

min

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

43

43 

41 

39 

41 

41

41 

40 

39 

39 

39

38 

38 

39 

41 

42

43 

42 

40 

42

March

max

42 

41 

41 

41 

41

43 

43 

43 

43 

43

43 

43 

43 

44 

45

44 

43 

43 

42 

43

44 

43 

43 

44 

45 

45 

46 

46 

43 

43 

43

43

min

41 

39 

41 

41 

41

41 

40 

41 

43 

43

42 

42 

43 

42 

42

42 

43 

41 

41 

41

41 

39 

43 

43

44

44 

43 

43 

43 

43 

41

42

April

max

45 

45 

46 

51 

52

51 

47 

47 

49 

51

49 

50 

50 

51 

52

52 

55 

55 

52 

53

53 

53 

53 

53 

54 

53 

52 

49 

45 

50

51

min

42 

44 

43 

43

47

47 

43 

42 

43 

45

47 

45 

49 

47 

45

47 

48 

49 

46 

45

47 

47 

46 

49 

49

51 

49 

46 

43 

45

46

M

max

48 

51 

52 

52 

49

51 

50 

50

55 

57

55 

56 

55 

53 

55

60 

61 

59 

57 

53

53 

58 

59 

61 

62

62 

65 

62 

56 

57 

55

56

a No temperature record.
ABERNETHY CREEK BASIN 

ABERNETHY CREEK NEAR LONGVIEW, WASH.

LOCATION. Temperature recorder at gaging station, 1 mile upstream from mouth and 11 miles n

DRAINAGE AREA. 20.3 square miles.

RECORDS AVAILABLE. Water temperatures: June 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum 65°F Sept. 19, 1952; minimum, 37°F Dec, 30, 

EXTREMES, 1950-52. Water temperatures: Maximum, 68'F Aug. 19-21, 1950; minimum, 34°F Mar. 

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 124

Temperature (°F) of water, water year October 1951 to Septembe

Day

14 «...- .-......_ 

16 

10

20

21

QA

oe

Average 

October

max

55 

55 

55 

53 

53

54 

55 

56 

55 

54

54 

54 

54 

53 

51

50 

48 

49 

51 

50

48 

48 

48 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b)

min

55 

55 

53 

52 

50 

53 

52 

51 

53 

52

54 

54 

53 

51 

50

48 

47 

48 

49 

48

48 

47 

48 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b)

November

max

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b)

47

47 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b) 

(b)

min

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

46

47 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b)

December

max

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

39 

37

min

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b)

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

(b) 

37 

37

January

max

38 

39 

38 

39 

39

40 

40 

40 

40 

39

40 

40 

40 

40 

40

40 

39 

40 

40 

40

39 

38 

38 

40 

40 

40 

41 

41 

41 

41 

42

40

min

37 

38 

37 

38 

39

39 

39 

39 

39 

39

39 

40 

40 

40 

40

39 

39 

39 

40 

38

38 

37 

37 

38 

40 

40 

40 

40 

40 

40 

40

39

February

max

42 

42 

42 

42 

43

43 

43 

43 

43 

43

43 

42 

41 

41 

41

41 

41 

40 

40 

39

39 

39 

40 

41 

41 

42 

42 

41 

42

41

min

42 

42 

42 

42 

42

42 

42 

42 

42 

42

42 

40 

40 

41 

41

40 

40 

40 

39 

38

38 

38 

38 

40 

41 

41 

40 

40 

41

41

March

max

42 

41 

41 

41 

41

42 

44 

43 

43 

43

43 

42 

42 

44 

46

45 

44 

43 

42 

43

44 

45 

44 

45 

47 

46 

47 

45 

44 

44 

43

43

min

40 

39 

41 

41 

40

40 

40 

40 

43 

42

41 

41 

42 

42 

42

42 

42 

42

41 

41

40 

40 

43 

44 

45 

44 

41 

43 

42 

42 

41

42

April

max

45 

46 

47 

50 

51

48 

49 

49 

51 

52

49 

50 

49 

50 

52

52 

54 

54 

50 

51

52 

51 

52 

51 

52 

52 

50 

46 

45 

48

50

min

42 

44 

43 

42 

44

44 

42 

41 

42 

44

47 

44 

47 

47 

43

44 

49 

47 

47 

41

43 

44 

42 

46 

46 

48 

47 

43 

41 

45

44

M

max

4

5

50 

4

5

5

49 

5

52 

55 

52 

5

53 

5

55

59 

5

52 

55 

5

53 

57 

57 

57 

56 

5

6

5

5

5

52

5

a No temperature record.

b Recorder stopped; range in temperature from Oct. 24 to Nov. 9, 46°F to 52°F. 

Recorder stopped; range in temperature from Nov. 12 to Dec. 29, 40°F to 47°F.
CLATSKANIE RIVER BASIN 

CLATSKANIE RIVER NEAR CLATSKANIE, OREG.

LOCATION. Temperature recorder at gaging station, 2 miles downstream from Carcus Creek and 

DRAINAGE AREA. 53.0 square miles (revised).

RECORDS AVAILABLE. Water temperatures: May, 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 72°F July 14; minimum, 35'F Jan. 3, 4.

EXTREMES, 1950-52. Water temperatures: Maximum, 75 °F July 24, 1950; minimum 35'F Jan. 3, 4

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to Septemb

Day

O

10 

12

1Q

14 . . _-..-,

15 

19

21

OQ

24

95

Oft

ng

29

on

31 

Average ........

October

max

57 

58 

57 

55 

54

57 

57 

57 

57 

55

55 

55 

55 

54 

53

51 

50 

50 

52 

52

49 

48 

49 

49 

48

47 

45 

46 

47 

44 

43

52

min

56 

56 

55 

53 

51

54 

54 

53 

53 

53

54 

54 

54 

53 

50

50 

48 

49 

50 

49

48 

47 

48 

48 

46

44 

43 

44 

44 

42 

41

50

November

max

42

43 

45 

45 

44

45 

47 

47 

45 

46

46 

46 

46 

46 

44

44 

44 

44 

45 

46

46 

45 

43 

43 

44

46

46 

46 

46 

46

45

min

39 

40 

43 

43 

42

43 

45 

46 

44 

45

46 

48 

46 

44 

43

43 

42 

43 

44 

45

45 

43 

43 

42 

42

44 

45 

46 

45 

46

44

December

max

48 

48 

46 

45 

45

44 

43 

42 

42 

43

43 

44 

43 

40 

41

42 

42 

42 

42 

42

43 

43 

43 

41 

40

39 

40 

41 

41 

39 

39

42

min

47 

46 

46 

45 

44

43 

42 

42 

41 

42

43 

43 

40 

39 

40

41 

41 

41 

41 

42 

42 

43 

41 

40 

39

38 

39 

40 

39 

39 

36

41

January

max

35 

36 

36 

36 

37

39 

38 

38 

39 

39

39 

39 

39 

39 

39

39 

38 

39 

40 

40

38 

38 

38 

40 

40

41 

41 

41 

42 

43 

43

39

min

36 

36 

35 

35 

38 

37 

38 

37 

38 

39

39 

39 

38 

38 

39

38 

37 

37 

39 

39

38 

37 

38 

38 

39

39 

40 

40 

41 

42 

41

38

February

max

42 

42 

43 

43 

43 

43 

43 

42 

43 

43

43 

42 

40 

41 

41

41 

40 

39 

39 

39

39 

38 

40 

41 

41

42 

42 

41 

42

41

min

42 

42 

42 

42 

42

41 

41 

40 

41 

41

42 

40 

39 

40 

41

39 

39 

39 

38 

38

37 

37 

37 

39 

41 

41 

41 

40 

41

40

March

max

41 

41 

42 

41 

41

42 

43 

43 

44 

43

43 

43 

43 

43 

45

44 

43 

43 

43 

43

44 

45 

45 

46 

48

48 

48 

47 

45 

46 

44

44

min

40 

39 

41 

41 

40

40 

40 

40 

43 

43

42 

42 

42 

42 

41

42 

42 

41 

41 

41

39 

40 

44 

45 

46 

46 

43 

45 

44 

44 

42

42

April

max

46 

46 

48 

51 

53

51 

49 

49 

50 

52

49 

51 

50 

53 

53

54 

56 

56 

53 

54

55 

55 

56 

55 

56

55 

54 

52 

49 

53

52

min

42 

44 

44 

44 

46

47 

44 

43 

43 

44

47 

46 

49 

48 

46

47 

48 

50 

49 

46

47 

48 

47 

50 

50

52 

51 

49 

46 

49

47

M

max

52 

53 

53 

52 

51

52 

52 

53 

57 

57

57 

57 

58 

57 

58

83 

64 

83 

59 

57

56 

61 

62 

63 

62 

63 

65 

61 

58 

57 

56

58
ELOKOMIN RIVER BASIN

ELOKOMIN RIVER NEAR CATHLAMET, WASH.

LOCATION. Temperature recorder at gaging station 125 feet upstream from railroad bridgs, 2 m

miles upstream from mouth. 

DRAINAGE AREA. 65.8 square miles.

RECORDS AVAILABLE. Water temperatures: June 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 72°F July 8, 14, 1952; minimum, 35°F Jan. 3

EXTREMES, 1950-52. Water temperatures: Maximum, 73°F June 29, 1951; minimum, 35°F Jan. 3, 4

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 124

Temperature (*F) of water, water year October 1951 to September 

Day

4 . -- -

12

21

23

24 ... .

net

Average 

October

max

54 

54 

54 

53 

52

54 

55 

55 

55 

54

54 

54 

54 

53 

51

49 

49 

49

50 

50

49 

48 

48 

48 

48

47 

47 

48 

48 

47 

45

51

min

54 

54 

53 

51 

51

52 

53 

53 

53 

53

53 

54 

53 

51 

49

49 

47 

48 

49 

49

48 

47 

48 

48 

47 

46 

45 

46 

47 

45 

45

50

November

max

45 

44 

46 

47 

47

47 

47 

47 

47 

47

47 

47 

47 

47 

46

45 

44 

44 

45 

45

45 

45 

44 

43 

44

45 

45 

45 

45 

47

46

min

43 

43 

44 

46 

45

45 

47 

47 

47 

47

47 

47 

47 

46 

45

43 

43 

43 

44 

45

45 

44 

43 

43 

43

44 

45 

45 

45 

45

45

December

max

47 

46 

45 

45 

45

45 

42 

42 

42 

43

43 

43 

42 

41 

41

42 

42 

42 

41 

41

42 

42 

42 

42

40

40 

40 

40 

40 

39 

39

42

min

46 

45 

45 

45 

45

42 

42 

42 

41 

42

43 

42 

40 

40 

40

41 

42 

41 

41 

41

41 

42 

42 

40 

40

40 

40 

40 

39 

39 

37

41

January

max

37 

37 

37 

37 

37

37 

37 

37 

37 

37

37 

38 

38 

39 

39

39 

39 

38 

39 

39

38 

37 

38 

38 

39

40 

40 

40 

41 

41 

42

38

min

36 

37 

35 

35 

37

37 

37 

37 

37 

37

37 

37 

38 

38 

39

39 

38 

38 

38 

38

37 

37 

37 

38 

38

39 

40 

40 

40 

41 

41

38

February

max

42 

42 

43 

43 

44

44 

44 

44 

44 

44

44 

43 

41 

41 

42

42 

42 

41 

41 

41

40 

39 

40 

42 

42

43 

43 

42 

42

42

min

42 

42 

43 

43 

43 

44 

44 

43 

43 

43

43 

41 

41 

41 

41

42 

41 

41 

41 

40

39 

39 

39 

40 

42

42 

41 

41 

42

42

March

max

42 

41 

42 

42 

42

43 

43 

44 

44 

44

43 

43 

43 

43 

44

43 

43 

41 

41 

42

43 

43 

43 

44 

45

45 

45 

45 

44 

43 

43

43

min

41 

40 

41 

42 

41

41 

41 

41 

44 

43

43 

43 

43 

42 

41

41 

41 

41 

41 

41

39 

40 

43 

43 

44

44 

43 

44 

42 

43 

41

42

April

max

43 

44 

45 

49 

49

49 

46 

45 

47 

48

48 

47 

47 

47 

49

49 

51 

51 

51 

49

49 

50 

49 

50 

52

51 

50 

48 

46 

49

48

min

41 

43 

43 

43 

45

46 

42 

42 

43 

43

46 

45 

47 

46 

45

45 

46 

47 

47 

44

46 

46 

45 

48 

48

50 

48 

46 

44 

44

45

Ma

max

47 

47 

51 

48 

47

49 

47 

51 

50 

54

53 

53 

52 

51 

55

59 

61 

60

57 

55

54 

58 

60 

60 

60

61 

63 

58 

54 

55 

54

54
BIG CREEK BASIN 

BIG CREEK NEAR KNAPPA, OREG.

LOCATION. Temperature recorder at gaging station, 0.3 mile downstream from fish hatchery and 

DRAINAGE AREA. 31.9 square miles.

RECORDS AVAILABLE. Water temperatures: May 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 60*F July 14, Aug. 4; minimum, 37*F Jan. 3, 

EXTREMES, 1950-52. Water temperatures: Maximum, 62°F Aug. 20, 21, 1951; minimum, 37'F Mar. 5

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to Septembe

Day

10 

14 

15 

18

20 - 

00

24 - ~

28 -

29 - 

30 

31 

Average 

October

max

55 

55 

55 

54 

54 

55 

55 

56 

56 

56

55 

55 

55 

55 

54

52 

52 

51 

52 

52

52 

51 

51 

51 

50 

49 

48 

50 

50 

48 

47

S3

mm

55 

55 

55 

54 

54 

54 

54 

55 

55 

55

55 

55 

55 

54 

52

52 

50 

50 

51 

52

51 

50 

51 

50 

49

48 

47 

48 

48 

46 

46

52

November

max

46 

46 

48 

48 

48 

48 

49 

49 

48 

48

48 

48 

48 

49 

47

45 

45 

44 

45 

46

46 

45 

44

45 

44

45 

46 

46 

46 

46

47

min

44 

45 

46 

48 

46 

47 

48 

47 

48 

47

48 

48 

48 

47 

45

45 

45 

44 

44 

45

45 

44 

42 

44 

42 

44 

45 

46 

46 

45

46

December

max

46 

46 

45 

45 

45 

44 

44 

44 

43 

44

44 

44 

44

42 

43

44 

43 

42 

41 

42

43 

43 

43 

41 

41

40 

40 

41 

41 

40 

40

43

min

46 

45 

45 

45 

44 

44 

44 

43 

43 

43

44 

44 

42 

42 

42

43 

42 

41 

41 

41

41 

43 

41 

40 

40

39 

39 

40 

40 

40 

38

42

January

max

38 

39 

39 

39 

39 

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

39 

39 

39 

39

39 

38 

39 

41 

41

42 

42 

42 

43 

43 

43

40

min

38 

38 

37 

37 

38 

39 

39 

39 

39 

38

38 

39 

38 

38 

39

39 

38 

38 

39 

39

38 

38 

38 

40 

41

41 

42 

42 

43 

43 

42

39

February

max

42 

42 

42 

42 

42 

42 

42 

42 

42 

42

42 

42 

41 

41 

41

41 

41 

41 

41 

41

41 

40 

40 

42 

42

42 

42 

42 

42

42

min

42 

42 

42 

42 

42 

42 

42 

42 

42 

42

42 

41 

41 

41 

41

41 

41 

40 

40 

40

40 

40 

40 

40 

41

42 

41 

41 

42

41

March

max

42 

41 

42 

42 

42 

42 

42 

42 

43 

43

42 

42 

42 

42 

43

43 

42 

42 

41 

41

42 

42 

43 

43

44

44 

44 

44 

44 

43 

43

42

min

41 

41 

41 

42 

41 

41 

41 

42 

42 

42

41 

41 

42 

42 

42

42 

42 

41 

41 

41

41 

41 

42 

43 

43

44 

43 

44 

43 

43 

42

42

April

max

43 

43 

44 

46 

46 

46 

45 

44 

45 

45

45 

46 

46 

46 

46

47 

48 

48 

48 

46

47 

47 

48 

48 

48

48 

48 

48 

46 

46

46

min

42 

43 

43 

43 

44 

44 

42 

42 

42 

43

45 

44 

46 

45 

45

45 

45 

46 

46 

44

45 

46 

45 

47 

47

48 

48 

46 

44 

45

45

Ma

max

46 

46 

46 

46 

46 

46 

46 

47 

48 

50

50 

50 

50 

50 

50

52 

54 

53 

52 

52

51 

52 

52 

53 

53

53 

55 

55

50
GRAYS RIVER BASIN 

WEST BRANCH GRAYS RIVER NEAR GRAYS RIVER, WASH.

LOCATION. Temperature recorder at gaging station, 1 mile upstream from mouth and 3J miles north

DRAINAGE AREA. 16.3 square miles.

RECORDS AVAILABLE. Water temperatures: June 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum, 64°F Aug. 3, 1952; minimum, 36°F Feb. 20, 1952

EXTREMES, 1950-52. Water temperatures: Maximum, 65°F July 24, 25, 1950; June 29, 1951; minimum

REMARKS. Records of discharge for water year October 1951 to September 1952 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 195

Day

Oft

21

99

00

OR

Oft

31 

Average ........

October

max

51 

51 

51 

51 

51

51 

51 

51 

52 

52

52 

52 

52 

52 

51 

50 

48 

48 

48 

48

49 

50 

50 

51 

51

51 

51 

51 

50 

49 

48

50

mln

51 

51 

51 

51 

51

51 

51 

51 

51 

52

52 

52 

52 

51 

50 

49 

48 

48 

48 

48

48 

49 

50 

50 

51

51 

51 

50 

49 

48 

47

50

November

max

47 

46 

45 

45 

45

45 

46 

46 

46 

46

46 

46 

46 

46 

47 

47 

47 

47 

47 

47

47 

47 

46 

45 

45

45 

45 

46 

46 

47

46

mln

46 

45 

45 

45 

45

45 

45 

46 

46 

46

46 

46 

46 

46 

46 

47 

47 

47 

47 

46

47 

46 

45 

45 

45

45 

45 

45 

46 

46

46

December

max

47 

48 

48 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

-

min

47 

47 

48 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a) 

(a)

--

January

max

(a) 

(a) 

39 

39 

39

39 

39 

39 

39 

39

40 

40 

40 

40 

40 

40 

40 

40 

40 

40

39 

40 

40 

40 

41

41 

41 

41 

41 

42 

42

40

min

(a) 

(a) 

38 

38 

39

39 

39 

39 

39 

39

39 

40 

40 

40 

40 

40 

40 

40 

40 

39

39 

39 

40 

39 

40

41 

41 

41 

41 

41 

42

40

February

max

42 

42 

42 

42 

42

43 

43 

43 

43 

43

43 

42 

41 

41 

41 

41 

40 

40 

40 

38

39 

39 

39 

40 

40

40 

40 

41 

41

41

min

42 

42 

42 

42 

42

42 

43 

42 

42 

42

42 

41 

41 

41 

41 

40 

40 

39 

38 

36

38 

39 

39 

39 

40

40 

40 

40 

41

41

March

max

41 

40 

40 

40 

40

41 

42 

42 

42 

42

41 

42 

42 

43 

43 

43 

43 

41 

41 

41

42 

43 

42 

43 

43

43 

44 

44 

43 

43 

43

42

min

40 

40 

40 

40 

40

40 

40 

41 

42 

41

41 

41 

42 

42 

42 

41 

41 

41 

41 

41

41 

41 

42 

42 

43

43 

43 

43 

43 

43 

42

41

April

max

43 

43 

43 

45 

47

46 

46 

46 

47 

48

47 

47 

47 

47 

48 

48 

50 

51 

49 

50

50 

48 

51 

50 

50

51 

50 

49 

47 

49

48

min

42 

43 

43 

43 

45

45 

44 

44 

44 

45

46 

46 

47 

46 

46 

46 

46 

48 

47 

46

46 

46 

46 

48 

48 

49 

49 

47 

46 

46

46

May

max

47 

48 

47 

48 

48

49 

49 

49 

50 

51

52 

52 

51 

50 

52 

56 

56 

56 

54 

54

52 

54 

55 

56 

56

55 

57 

55 

53 

53 

53

52

mi

4

4

46 

4

4

47 

47 

4

4

4

5

4

5

4

4

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

a Recorder stopped; range in temperature from Dec. 4 to Jan. 2, 38°F to 49°F.
YOUNGS RIVER BASIN 

NORTH FORK KLASKANINE RIVER NEAR OLNEY, OREG.

LOCATION. Temperature record*? it caging station half a mile downstream from Bartb Falls, 2 mi

and 4 miles southeast of Olney, Clatsop County. 

DRAINAGE AREA. 14.0 square Mile*.

RECORDS AVAILABLE. Water temperatures: May, 1950 to September 1952.

EXTREMES, 1951-52. Water temperatures: Maximum 65*F July 14, Aug. 4; minimum, 37°F Dec. 31, Ja

EXTREMES, 1950-52. Water temperatures: Maximum, 65°F July 14, Aug. 4, 1952; minimum, 35"F Jan. 

REMARKS. Records of discharge for water year 1951-52 given in WSP 1248.

Temperature (°F) of water, water year October 1951 to September 1

Day

2

45 _ . .... _ ...

6 . - 

Q

1 9

15 - 

19 *

nn

99

no

24

25

29 - 

31 - 

Average 

October

max

55 

55 

55 

53 

53 

54 

55 

57 

57 

55

55 

55 

54 

54 

52

50 

49 

50 

51 

51

50 

49 

49 

49 

49

48 

47 

48 

48 

47 

45

52

mln

54 

55 

53 

53 

52 

53 

54 

55 

55 

55

55 

54 

54 

52 

50

49 

48 

49 

50 

50

49 

49 

49 

49 

47

46 

46 

46 

47 

45 

43

51

November

max

44 

45 

48 

48 

47 

48 

48 

48 

47 

48

47 

47 

47 

47 

46

45 

44 

44 

45 

45

45 

45 

44 

42 

44

44 

45 

45 

45 

45

46

min

43 

43 

45 

47 

46 

47 

48 

47 

46 

47

47 

47 

47 

46 

45

44 

43 

43 

44 

45

44 

44 

42 

40 

41

44 

43 

45 

45 

45

45

December

max

46 

46 

45 

45 

45 

44 

44 

43 

43 

45

44 

43 

40 

40 

42

43 

43 

43 

42 

42

43 

43 

43 

42 

41

40 

41 

42 

42 

39 

38

43

mln

46 

45 

45 

45 

44 

43 

43 

43 

43 

43

44 

40 

40 

40 

41

42 

43 

42 

41 

41

42 

43 

42 

41 

40

39 

39 

41 

38 

38 

37

42

January

max

38 

39 

38 

38 

39 

39 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

39 

40 

40 

41

42 

42 

42 

43 

43 

43

--

min

37 

38 

37 

37 

38 

39 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

(a) 

(a) 

(a) 

(a)

(a) 

39 

39 

40 

40

41 

42 

41 

42 

42 

4?

--

February

max

43 

43 

44 

44 

44 

44 

44 

43 

44 

44

44 

42 

41 

42 

42

42 

40 

41 

40 

41

40 

40 

42 

43 

43

43 

43 

41 

43

42

min

43 

43 

43 

43 

43 

43 

43 

42 

43 

43

42 

41 

40 

41 

42

40 

39 

40 

39 

39

39 

39 

39 

41 

43

43 

41 

40 

41

41

March

max

41 

42 

42 

42 

41 

43 

44 

44 

44 

44

43 

44 

44 

43 

46 

44 

44 

42 

43 

43

44 

44 

43 

43 

45

46 

47 

46 

45 

44 

44

44

min

40 

40 

42 

41 

41 

41 

41 

41 

44 

43

42 

42 

43 

43 

43

43 

42 

41 

41

41

40 

40 

42 

42 

44

45 

43 

44 

44 

43 

42

42

April

max

45 

46 

47 

50 

50 

48 

45 

47 

48 

49

48 

49 

49 

48 

50

49 

52 

51 

49 

50

50 

50 

50 

51 

51

51 

51 

49 

47 

48

49

min

42 

45 

44 

44 

45 

44 

42 

42 

43 

43

46 

45 

47 

46 

45

44 

45 

47 

46 

44

45 

45 

44 

46 

46

48 

47 

45 

42 

44

45

May

max

48 

48 

47 

49 

47 

49 

48 

48 

51 

52

52 

52 

52 

52 

53

57 

58 

58 

55 

54

52 

54 

56 

56 

56

56 

57 

55 

51 

52 

52

52

mi

a Range in temperature 38° F to 41° F for period Tan. 7-21.
INDEX

Abernethy Creek near Longview, Wash ... 

Abernethy Creek basin..................

Agua Frla River below Lake Pleasant

Dam. i Ariz ...................

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

Alameda Creek basin ...................

Aluminum .............................

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

at Sacramento, (at H Street Bridge) 

Calif..........................

Animas River at Farmington, N. Mex ....

Ariel, Wash., Lewis River at ...........

Arlington, Wash., Jim Creek near .......

Auburn, Wash., Green River near........

B

Bar tie tt Dam, Ariz., Verde River below. 

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

Big Creek near Knappa, Oreg...........

Big Creek basin.......................

Blacks Fork near Green River, Wyo.....

Blanco, N. Mex., San Juan River near... 

Blue River, Oreg., Lookout Creek near.. 

Bluff, Utah, San Juan River near........

Boise River at Notus, Idaho ............

Boise River basin .....................

Boron ................................

Boulder City, Nev., Lake Mead near ....

Breitenbush River above Canyon Creek

near Detroit, Oreg. ...........

Bright Angel Creek near Grand Canyon,

Ariz .........................

Bright Angel Creek basin...............

Bryant, Wash., Pilchuck Creek near ....

Bull Run, Oreg., Bull Run River at .....

Bull Run River at Bull Run, Oreg........

Burney Creek near Burney, Calif .......

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

near Lower Lake, Calif .............

Calaveras River near Jenny Lind, Calif... 

Calcium ............................. .

Cameo, Colo., Colorado River near......

Cameron, Ariz., Little Colorado River at 

Carbonate and bicarbonate ..............

Carmel River near Carmel, Calif ........

Carmel River basin ....................

Cascade River at Marblemount, Wash ....

Castle Rock, Wash., Cowlltz River at....

Cathlamet, Wash., Elokomin River near.. 

Chehalis River near Grand Mound, Wash.. 

Chehalis River basin ...................

Chemical quality .......................

Chloride...............................

Cisco, Utah, Colorado River near........

Cisco, Utah, Dolores River near.........

Clspus River near Handle, Wash .........

Clear Lake (north end) Clear Lake Oaks, 

Calif..........................

(west side) Lakeport, Calif ..........

C larks ton, Wash., Snake River near .....

Clatskanie, Oreg., Clatskanle River near. 

Clatskanie River near Clatskanle, Oreg... 

Clatskanie River basin ..................

Collection and examination of samples ....

Color .................................

Colorado River at Hlte, Utah ............

at Hot Sulphur Springs, Colo.........

at Lees Ferry, Ariz ................

at Yuma, Ariz .....................

Page 

334 

334

210-212

230

230

8

25S-2S7

262

127-132 

325 

282 

281

207-209

261

337

337

57-59

120-126

319

138-143 

296-298 

296-298 

11 

187-195

321

172

172

284

315

315

258

264

263

243

9

30-32

163-164

10

227

227

285

332

338

273

273

3

10-11

45-50

39-44

327

262

263

299-301 

335 

335 

335 

3-5 

12

110-116

21-23

144-152

216

Page 

Colorado River below Hoover Dam,

Ariz.-Nev .................... 196-198

near Cameo, Colo ................. 30-32

near Cisco, Utah .................. 45-50

near Glenwood Springs, Colo........ 27-29

near Grand Canyon, Ariz ........... 165-171

near Topock, Ariz ................. 199

Colorado River basin .................. 21-218

Columbia River at Grand Coulee Dam,

Wash ......................... 289-291

at International boundary ........... 286-288

at Maryhill Ferry near Rufus, Oreg . 309-311 

at Northport, Wash ................ 292

Composition of surface waters .......... 7-15

Cooperation........................... 17

Corroslveness......................... 14

Cottonwood Creek near Cot ton wood, Calil 258 

C owe man River near Kelso, Wash ....... 333

Cowlitz River at Castle Rock, Wash ..... 332

near Mayfield, Wash ............... 330

Cowlltz River basin .................... 327-333

Coyote Creek near Madrone, Calif....... 229

Coyote Creek basin .................... 229

Crooked River near Culver, Oreg ....... 305

Culver, Oreg., Crooked River near ..... 305

Dale, Oreg., Desolation Creek near ..... 304 

Darrington, Wash., North Fork Stillaquamish River near ............ 283

Dayvllle, Oreg., South Fork John Day

River near .................... 303

Dee, Oreg., Green Point Creek near .... 314

Delta, Calif., Sacramento River at...... 245,258

Deschutes River near Madras, Oreg ..... 307

Deschutes River basin ................. 305-308

Desolation Creek near Dale, Oreg ....... 304

Detroit, Oreg., Breitenbush River near.. 321 

Detroit, Oreg., North Santiam River near 320 

Dirty Devil River near Kite, Utah ....... 107-109

Dirty Devil River basin ................ 107-109

Dissolved solids....................... 12

Diversions and Return Flows at and below

Imperial Dam ................. 217-218

Division of work....................... 17-18

Dolores River at Gateway, Colo ......... 36-38

near Cisco, Utah .................. 39-44

Dolores River basin ................... 36-44

Duchesne River near Randlett, Utah ..... 106

Duwamish River basin.................. 277-281

E

Eagle Lake near Susanvllle, Calif ....... 226

Eagle Lake basin ...................... 226

Eagle River at Gypsum, Colo ........... 24-26

Eagle River basin ..................... 24-26

East Fork Lewis River near Heisson,

Wash......................... 326

East Fork Russian River at Potter Valley,

Calif ......................... 265

near Calpella, Calif................ 265

Eel River at Scotia, Calif............... 268

near McCann, Calif ................ 267

Eel River basin ....................... 267-266

Elokomin River near Cathlamet, Wash ... 336 

Elokomin River basin .................. 336

Escalante, Utah, Escalante River near... 117-119 

Escalante River at mouth near Escalante,

Utah.......................... 117-119

Escalante River basin .................. 117-119

Expression of results .................. 6-7

341
342 INDEX

Fair Oaks, Calll., American River at .

Fall Creek, Oreg., Fall Creek near ...

Fall Creek below Winberry Creek near

Fall Creek, Oreg ............

Farmington, N. Mex., Anlmas River at..

Page

255-257

318

318 

127-132

Feather River at Nicolaus, Calif ..... 252-254, 261

near Oroville, Calif ............... 260

Fluoride.............................. 11

Fort Pierce Wash near St. George, Utah . 200

Gateway, Colo., Dolores River at.......

Gila River at Kelvin, Ariz ..............

below Gillespie Dam, Ariz..........

Gila River basin.......................

Gillespie Dam, Ariz., Gila River below..

Glenwood Springs, Colo., Colorado River

near..........................

Glenwood, Wash., Klickitat River near... 

Grand Canyon, Ariz., Colorado River

near .........................

Grand Coulee Dam, Wash., Columbia

River at ......................

Grand Junction, Colo., Gunnison River

near..........................

Grand Mound, Wash., Chehalis River

near..........................

Grandview, Oreg., Metolius River near..

Grays River, Wash., West Branch Grays

River near ....................

Grays River basin .....................

Great Basin ...........................

Green Point Creek below North Fork near 

Dee, Oreg ....................

Green River, Utah, Green River at......

Green River, Utah, San Rafael River near 

Green River, Wyo., Blacks Fork near ... 

Green River, Wyo., Green River near ... 

Green River at Green River, Utah .......

at Jensen, Utah....................

near Auburn, Wash ................

near Green River, Wyo ............

near Jensen, Utah .................

near Ouray, Utah ..................

near Palmer, Wash................

Green River basin .....................

Guadalupe River basin..................

Gunnison River near Grand Junction, Cola 

Gunnison River basin ..................

Gypsum, Colo., Eagle River at .........

H

Hardness .............................

Heisson, Wash., East Fork Lewis River

near..........................

Henrys Fork at Linwood, Utah ..........

Kite, Utah, Colorado River at ..........

Kite, Utah, Dirty Devil River near ......

Honey Lake basin ......................

Hood River basin ......................

Hoover Dam, Ariz. -Nev., Colorado River

below ........................

Hot Sulphur Springs, Colo., Colorado

River at ......................

Humboldt River near Rye Patch, Nev ....

Humboldt River basin ..................

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

Indian Creek near Crescent Mills, Calif.. 

International boundary, Columbia River at 

Introduction ...........................

Iron ..................................

Jensen, Utah, Green River at... 

Jensen, Utah, Green River near. 

Jim Creek near Arlington, Wash

36-38 

201-203 

213-215 

201-215 

213-215

27-29 

312

165-171

289-291

33-35

273

306

338

338

219-226

314 

92-98 

99-105 

57-59 

51-56 

92-98 

71-73

281

51-56

74-77

81-85

277-280

51-106

229 

33-35 

33-35 

24-26

13

326

60-62

110-116

107-109

226

314

196-198

21-23 

222-224 

222-224

12-13

260

286-288

1-3

9

71-73 

74-77

John Day River basin

Page 

303-304

K

Kaweah River near Three Rivers, Calif . 231

Kelso, Wash., Coweman River near .... 333

Kelvin, Ariz., Gila River at .......... 201-203

Kern River near Bakersfield, Calif ..... 230

Kern River basin ..................... 230

King Hill, Idaho, Snake River at........ 293-295

Kings River above North Fork, Calif.... 231

at Peoples Weir, (near Kingsburg)

Calif ........................ 231

at Piedra, Calif .................. 231

Klamath River at Somesbar, Calif ...... 268

near Copco, Calif................. 268

near Klamath, Calif............... 269

Klamath River basin .................. 268-270

Klickitat River near Glenwood, Wash ... 312

near Pitt, Wash .................. 313

Klickitat River basin .................. 312-313

Knappa, Oreg., Big Creek near ........ 337

Knights Landing, Calif., Sacramento

River at .................. 249-251,259

Kosmos, Wash., Rainy Creek near ..... 328

Lake Mead near Boulder City, Nev 

Lake Pleasant Dam, Ariz., Agua Fria

River below ..................

Lake Tahoe (North End) Tahoe Vista,

Calif ........................

(South End) Bijou, Calif ...........

(West Side) Tahoe City, Calif ......

Lebam, Wash., Willapa River at.......

Lees Ferry, Ariz., Colorado River at.. 

Lees Ferry, Ariz., Paria River at.....

Lewis River at Ariel, Wash ...........

Lewis River basin ....................

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

Lily, Colo., Little Snake River near 

Linwood, Utah, Henrys Fork at ........

Literature cited ......................

Little Colorado River at Cameron, Ariz.

at Woodruff, Ariz.................

Little Colorado River basin ............

Littlefield, Ariz., Virgin River at......

Little Snake River near Lily, Colo. 

Longview, Wash., Abernethy Creek

near.........................

Lookout Creek near Blue River, Oreg... 

Los Gatos Creek at Los Gatos, Calif....

Lowell, Oreg., Middle ForkWillamette 

River at .....................

Lynndyl, Utah, Sevier River near.......

187-195 

210-212

225 

225 

225 

272

144-152

153-155

325

325-326

269,270

69-70

60-62

19-20

163-164

156-162

156-164

180-186

69-70

334

319

229

317 

219-221

M

Madras, Oreg., Deschutes River near .. 307 

Magnesium .......................... 9

Manganese........................... 9

Marblemount, Wash., Cascade River at. 285 

Maybell, Colo., Yampa River near ..... 63-68

Mayfield, Wash., Cowlitz River near ... 330

McCloud River above Shasta Lake, Calif. 248

Merced River at Exchequer Dam, Calif . 240-241

near Stevinson, Calif.............. 241

Metolius River near Grandview, Oreg... 306 

Middle Fork Willamette River at Lowell,

Oreg ........................ 317

below North Fork near Oakridge,

Oreg ........................ 316

Mineral constituents in solution ........ 8-12

Mineral Creek near Mineral, Wash ..... 275-276

Mineral, Wash., Mineral Creek near ... 275-276

Mokelumne River at Woodbridge, Calif .237-239,244

near Lancha Plana, Calif .......... 243

Montgomery Creek, Calif., Pit River

near......................... 246

Morton, Wash., West Fork Til ton River

near........ ................ 329
INDEX 343

N

Page 

Napa River near St. Helena, Calif ....... 265

Napa River basin ...................... 265

National, Wash., Nisqually River near... 274 

Nicolaus, Calif., Feather River at ....252-254,261

Nisqually River near National, Wash..... 274

Nisqually River basin .................. 274-276

Nitrate ............................... 11

North Fork Cache Creek near Lower Lake,

Calif ......................... 263

North Fork Stillaguamish River near

Darrington, Wash ............. 283

North Fork Klaskanine River near Olney,

Oreg ......................... 339

North Santiam River below Boulder Creek

near Detroit, Oreg............. 320

Notus, Idaho, Boise River at ........... 296-298

Oakridge, Oreg., Middle ForkWlllamette

River near .................... 316

Olney, Oreg., North Fork Klaskanine

River near .................... 339

Ouray, Utah, Green River near.......... 81-85

Ouray, Utah, Willow Creek near ........ 86-88

Oxygen consumed ...................... 12

Pacific Slope basins In California ....... 227-271

Pacific Slope basins in Oregon and Lower

Columbia River basin .......... 303-339

Pacific Slope basins in Washington and

Upper Columbia River basin .... 272-292 

Pacific Slope basins north of Columbia

River......................... 272-285

Palmer, Wash., Green River near ...... 277-280

Paria River at Lees Ferry, Ariz ........ 153-155

Paria River basin ..................... 153-155

Pajaro River near Chittenden, Calif...... 228

Pajaro River basin..................... 228

Percent sodium........................ 14

Pilchuck Creek near Bryant, Wash ...... 284

Pit River near Canby, Calif ............ 258

near Montgomery Creek, Calif ..... 246

Pitt, Wash., Klickitat River near ....... 313

Price River at Woodside, Utah .......... 89-91

Properties and characteristics of water .. 12-14

Publications .......................... 15-16

Putah Creek near Winters, Calif ........ 264

Pyramid and Winnemucca Lakes basin ... 225

R

Rainy Creek near Kosmos, Wash ........ 328

Handle, Wash., Cispus River near....... 327

Rufus, Oreg., Columbia River near...... 309-311

Russian River at Guerneville, Calif...... 267

at Ukiah, Calif .................... 266

near Healdsburg, Calif ............. 266

near Hopland, Caltf................ 266

Russian River basin ................... 265-267

Rye Patch, Nev., Humboldt River near .. 222-224

Sacramento River at Delta, Calif ........ 245, 258

at Knights Landing, Calif ....... 249-251,259

at Sacramento, (Tower Bridge) Calif. 262

near Hamilton City, Calif........... 259

near Redding, Calif ................ 258

near Rio Vista, Calif............... 264

Sacramento River basin ................ 245-264

Sacramento Slough near Knights Landing,

Calif ......................... 259

St. George, Utah, Santa Clara River at .. 178

St. George, Utah, Virgin River near..... 179

Salem, Oreg., Willamette River at...... 322-324

Salinas River near Spreckles, Calif...... 227

Salinas River basin .................... 227

Salmon Falls Creek near Buhl, Idaho .... 302

Page

Salt River at Stewart Mountain Dam,Ariz. 204-206 

Sandy River basin........ ............. 315

San Joaquin River at Antioch, Calif ...... 244

at Friant, Calif.................... 240

at Maze Road Bridge, Calif......... 242

near Dos Palos, Calif .............. 240

near Grayson, Calif................ 241

near Mendota, Calif................ 240

near Vernalis, Calif ........... 232-234,243

San Joaquin River basin ................ 232-244

San Juan River at Shiprock, N. Mex ..... 133-137

near Blanco, N. Mex .............. 120-126

near Bluff, Utah ................... 138-143

San Juan River basin ................... 120-143

San Lorenzo River at Big Trees, Calif... 229 

San Lorenzo River basin................ 229

San Rafael River near Green River, Utah. 99-105 

Santa Clara, Utah, Santa Clara River near 177 

Santa Clara River above Winsor Dam near

Santa Clara, Utah.............. 177

at St. George, Utah ................ 178

Sediment ............................. 15

Sevier River near Lynndyl, Utah ........ 219-221

Sevier Lake basin ..................... 219-221

Shasta Lake, Calif., McCloud River

above ........................ 248

Shasta Lake, Calif., Squaw Creek above . 247 

Shiprock, N. Mex., San Juan River at ... 133-137 

Silica ................................ 8

Silver Lake, Wash., Toutle River near... 331 

Skagit River basin ..................... 285

Smith River near Crescent City, Calif ... 271 

Smith River basin ..................... 271

Snake River at King Hill, Idaho ......... 293-295

below Thousand Springs near Hagerman, Idaho ................... 302

near Burley, Idaho ................ 302

near Clarkston, Wash .............. 299-301

Snake River basin ..................... 293-302

Sodium-adsorption-ratio................ 14

Sodium and potassium .................. 10

Soquel Creek at Soquel, Calif ........... 228

Soquel Creek basin .................... 228

South Fork Eel River near Miranda.Calif. 267 

South Fork John Day River near Dayville,

Oreg ......................... 303

Specific conductance ................... 13

Squaw Creek above Shasta Lake, Calif ... 247 

Stanislaus River at mouth, Calif......... 242-243

Stewart Mountain Dam, Ariz., Salt River

at............................ 204-206

Stillaguamish River basin .............. 282-284

Stock ton, Calif., Stockton Diverting Canal

at............................ 235-236

Stockton Diverting Canal at Stockton,

Calif ......................... 235-236

Stony Creek near Hamilton City, Calif ... 259 

Stream flow........................... 19

Sulfate................................ 10

Susan River near Susanville, Calif....... 226

Suspended sediment.................... 4-5

Temperature.......................... 5

Topock, Ariz., Colorado River near..... 199

Total acidity .......................... 13

Toutle River near Silver Lake, Wash .... 331

Trinity River at Lewiston, Calif......... 269,270

269 

225 

225 

231 

242

241

242

near Hoopa, Calif. 

Truckee River at Farad, Calif.....

near Truckee, Calif..........

Tulare Lake basin ...............

Tuolumne River at Hickman, Calif ,

at La Grange, Calif ..........

at Tuolumne City, Calif ......

U 

Upper Columbia River basin ............ 286-292
344 INDEX

Page 

Verde River below Bartlett Dam, Ariz.... 207 -209

Vernalis, Calif., San Joaquin River

near....................... 232-234,243

Virgin, Utah, Virgin River at............ 173-175

Virgin River at Littlefield, Ariz.......... 180-186

at Virgin, Utah ................. 173-175

near St. George, Utah........... 179

Virgin River basin .................. 173-186,200

W 

Watson, Utah, White River near ......... 78-80

Warm Springs, Or eg., Warm Springs River

near........................... 308

Warm Springs River at Hehe Mill near

Warm Springs, Oreg ............ 308

Washington, Utah, Washington Fields

Canal near..................... 176

Washington Fields Canal near Washington,

Utah .......................... 176

West Branch Grays River near Grays River

Wash.......................... 338

West Fork Tilton River near Morton, Wash. 329

Page 

White River near Watson, Utah .......... 78-80

Willamette River at Salem, Oreg ......... 322-324

Willamette River basin .................. 316-324

Willapa River basin ..................... 272

Willapa River at Lebam, Wash ........... 272

Willow Creek near Ouray, Utah .......... 86-88

Woodbridge, Calif., Mokelumne River

at......................... 237-239,244

Woodruff, Ariz., Little Colorado River

at............................. 156-162

Woodside, Utah, Price River at.......... 89-91

Yampa River near May bell, Colo ......... 63-68

Youngs River basin ..................... 339

Tuba River at Marysville, Calif.......... 261

at Smartsville, Calif ................ 260

Tuma, Ariz., Colorado River at ......... 216

Tuma, Ariz., Tuma Main Canal at ....... 217-218

Tuma Main Canal below Colorado River

siphon,atTuma, Ariz ........... 217-218

. S. GOVERNMENT PRINTING OFFICE : 1956 O -407403