Quality of

Surface Waters of the 

United States 

1949

 >arts 7-14

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1163

Prepared in cooperation with the States 

i?/ Arkansas, New Mexico, Oklahoma, 

Texas, and Louisiana and other agencies

'JNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1953
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price $1.50 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation with the States of Arkansas, Louisiana, New Mexico, 

Oklahoma, Texas and other agencies, by personnel of the Water 

Resources Division under the direction of:

C. G. Paulsen - Chief Hydraulic Engineer 

S. K. Love Chief, Quality of Water Branch

District Supervisors (Quality of Water)

P. C. Benedict, regional engineer Lincoln, Nebr. 

G. A. Billingsley, district chemist - Fayetteville, Ark. 

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

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

Burdge Irelan, district chemist Austin, Tex. 

I. W. Walling, district chemist Stillwater, Okla.

Ill

CONTENTS

Page

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

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

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

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

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

Expression of results ................. 5

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

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

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

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

Manganese .................... 8

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

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

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

Sodium and potassium................ 9

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

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

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

Fluoride ..................... 10

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

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

Dissolved solids .................. 11

Properties and characteristics of water ........ 11

Oxygen consumed ................. 11

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

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

Specific conductance ................ 12

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

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

Corrosiveness ................... 13

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

Sediment ...................... 14

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

Cooperation ..................... 16

Division of work ................... 16

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

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

Chemical analyses, water temperatures, and suspended

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

Part 7-Lower Mississippi River basin ......... 21
VI CONTENTS

Chemical analyses, etc. --Continued

Lower Mississippi River basin--Continued Page

Mississippi River main stem ............ 21

Mississippi River at St. Louis, Mo. ........ 21

St. Francis River basin ............... 24

Miscellaneous analyses of streams in St. Francis

River basin in Arkansas ............. 24

White River basin ................. 25

White River at Cotter, Ark. ............ 25

White River at Newport, Ark. ........... 28

White River at Clarendon, Ark. .......... 31

North Fork River at Norfork Dam near Norfork, Ark. 34 

Miscellaneous analyses of streams in White River

basin in Arkansas ................ 35

Arkansas River basin ............... 37

Arkansas River at Fort Lyon, Colo. ........ 37

Arkansas River at Caddoa, Colo. ........ . . . . . 39

Arkansas River at Kaw City, Okla. ......... 40

Arkansas River at Sand Springs Bridge near Tulsa,

Okla. ..................... 44

Arkansas River at Bixby, Okla. .......... 48

Arkansas River at Webber Falls, Okla. ....... 52

Arkansas River at Van Buren, Ark. ........ 56

Arkansas River at Dardanelle, Ark. ........ 61

Arkansas River at Little Rock, Ark. ........ 65

Verdigris River near Claremore, Okla. ...... 69

Verdigris River near Inola, Okla. ......... 72

Neosho River near Commerce, Okla. ........ 75

Neosho River near Wagoner, Okla. ......... 78

Spring River near Quapaw, Okla. ......... 81

Elk River near Tiff City, Mo. ........... 84

Canadian River near Sanchez, N. Mex. ....... 87

Reservoir behind Conchas Dam, N. Mex. ...... 89

Canadian River near Tascosa, Tex. ........ 92

Canadian River near Amarillo, Tex. ........ 95

Canadian River at Bridgeport, Okla. ........ 99

Canadian River near Whitefield, Okla. ....... 105

Vermejo River near Dawson, N. Mex. ....... 110

Cimarron River at Ute Park, N. Mex. ....... 114

Mora River at Loma Parda, N. Mex. ....... 116

Ute Creek near Bueyeros, N. Mex. ........ 120

Deep Fork River near Dewar, Okla. ........ 124

Bell Cow Creek at Chandler, Okla. ......... 128

Petit Jean Creek at Danville, Ark. ......... 131

Miscellaneous analyses of streams in Arkansas River

basin in New Mexico ............... 134

Miscellaneous analyses of streams in Arkansas River

basin in Arkansas ................ 136

Red River basin .................. 138

Red River at Denison Dam near Denison, Tex. . . . 138
CONTENTS VH

Chemical analyses, etc. Continued 

Lower Mississippi River basin--Continued

Red River basin--Continued Page 

North Fork Red River near Carter, Okla. ...... 140

Little Beaver Creek near Duncan, Okla. ...... 143

Washita River near Clinton, Okla. ......... 146

Washita River at Carnegie, Okla. ......... 149

Washita River near Tabler, Okla. ......... 152

Washita River near Durwood, Okla. ........ 156

Barnitz Creek near Arapaho, Okla. ......... 160

Pond Creek near Fort Cobb, Okla. ......... 163

Rush Creek at Purdy, Okla. ............ 166

Kiamichi River near Belzoni, Okla. ........ 169

Little River near Idabel, Okla. .......... 172

Sulphur River near Darden, Tex. ......... 175

Ouachita River near Malvern, Ark. ........ 179

Ouachita River at Arkadelphia, Ark. ........ 181

Ouachita River at Camden, Ark. .......... 184

Ouachita River near Crossett, Ark. ........ 187

Little Missouri River near Boughton, Ark. ..... 190

Saline River near Rye, Ark. ............ 193

Miscellaneous analyses of streams in Red River 

basin in Texas ................. 196

Miscellaneous analyses of streams in Red River 

basin in Arkansas ................ 198

Vermilion River basin ............... 199

Vermilion River at Bancker Ferry near Abbeville, La. 199 

Part 8-Western Gulf of Mexico basins ......... 202

Mermentau River basin ............... 202

Mermentau River at Lake Arthur, La. ....... 202

Calcasieu River basin ............... 204

Calcasieu River at Lake Charles, La. ....... 204

Sabine River basin ................. 206

Sabine River near Ruliff, Tex. .......... 206

Neches River basin ................. 209

Neches River at Evadale, Tex. .......... 209

Miscellaneous analyses of streams in Neches River 

basin in Texas. ................. 212

Trinity River basin ................ 213

Trinity River near Oakwood, Tex. ......... 213

Trinity River at Romayor, Tex. .......... 216

Clear Fork Trinity River at Fort Worth, Tex. . . . 218

Miscellaneous analyses of streams in Trinity River 

basin in Texas ................. 221

San Jacinto River basin ............... 223

San Jacinto River near Huffman, Tex. ....... 223

Miscellaneous analyses of streams in San Jacinto 

River basin in Texas ............... 226

Brazos River basin ................. 227

Double Mountain Fork Brazos River near Aspermont, 

Tex. ...................... 227
VIH CONTENTS

Chemical analyses, etc. --Continued 

Western Gulf of Mexico basins--Continued

Brazos River basin--Continued Page 

Brazos River at Possum Kingdom Dam near Graford, 

Tex. ...................... 22r

Brazos River near Whitney, Tex. ......... 23C

Brazos River at Richmond, Tex. .......... 23?

Salt Fork Brazos River near Aspermont, Tex. ... 23E"

Clear Fork Brazos River at Nugent, Tex. ...... 23£

Miscellaneous analyses of streams in Brazos River 

basin in Texas. ................. 245.

Colorado River basin ................ 244

Colorado River at Colorado City, Tex. ....... 244

Colorado River at Robert Lee, Tex. ........ 247

Colorado River near San Saba, Tex. ........ 253

Colorado River at Austin, Tex. .......... 256

Colorado River at Wharton, Tex. ......... 258

Morgan Creek near Colorado City, Tex. ...... 259

Miscellaneous analyses of streams in Colorado River 

basin in Texas ................. 261

Guadalupe River basin ............... 263

Guadalupe River at Victoria, Tex. ......... 263

Miscellaneous analyses of streams in Guadalupe River 

basin in Texas ................. 265

Nueces River basin ................ 266

Nueces River near Mathis, Tex. .......... 266

Miscellaneous analyses of streams in Nueces River 

basin in Texas ................. 268

Rio Grande basin ................. 269

Rio Grande near Lobatos, Colo. .......... 269

Rio Grande at Embudo, N. Mex. .......... 271

Rio Grande at Otowi Bridge near San Hdefonso, N. Mex. 275 

Rio Grande near Bernalillo, N. Mex. ........ 282

Rio Grande near Bernardo, N. Mex. ........ 287

Rio Grande at San Acacia, N. Mex. ......... 292

Rio Grande at San Marcial, N. Mex. ........ 299

Rio Grande at Mission Pumping Plant near Mission, 

Tex. ...................... 306

Rio Chama near Abiquiu, N. Mex. ......... 308

Rio Chama near Chamita, N. Mex. ........ 312

Galisteo Creek at Domingo, N. Mex. ........ 316

Jemez River near Bernalillo, N. Mex. ....... 320

Rio Puerco below Cabezon, N. Mex. ........ 325

Rio Puerco at Rio Puerco, N. Mex. ........ 329

Rio Puerco near Bernardo, N. Mex. ........ 333

Chico Arroyo near Guadalupe, N. Mex. ...... 337

San Jose River at Correo, N. Mex. ........ 341

Rio Salado near San Acacia, N. Mex. ....... 345

Socorro Main Canal North at San Acacia, N. Mex. . . 349 

Pecos River at Puerto de Luna, N. Mex. ...... 350
CONTENTS IX

Chemical analyses, etc. --Continued 

Western Gulf of Mexico basins--Continued

Rio Grande basin--Continued Page 

Pecos River below Alamogordo Dam, N. Mex. ... 355

Pecos River near Acme, N. Mex. ......... 357

Pecos River near Artesia, N. Mex. ........ 359

Pecos River near Malaga, N. Mex. ........ 364

Pecos River at Red Bluff, N. Mex. ......... 366

Pecos River near Or la, Tex. ........... 368

Pecos River below Grandfalls, Tex. ........ 370

Carlsbad Project Main Canal near Carlsbad, N. Mex.- 372 

Refinery Intake Canal near Loving, N. Mex. .... 374

Miscellaneous analyses of streams in Rio Grande 

basin in New Mexico ............... 375

Miscellaneous analyses of streams in Rio Grande 

basin in Texas. ................. 378

Part 9-Colorado River basin ............. 379

Colorado River main stem ............. 379

Colorado River at Hot Sulphur Springs, Colo. .... 379

Colorado River near Glenwood Springs, Colo. .... 382

Colorado River near Cameo, Colo. ......... 385

Colorado River near Cisco, Utah .......... 388

Colorado River at Kite, Utah. ........... 392

Colorado River at Lees Ferry, Ariz. ........ 395

Colorado River near Grand Canyon, Ariz. ..... 401

Lake Mead near Boulder City, Nev. ........ 409

Colorado River below Hoover Dam, Ariz. -Nev. ... 418

Miscellaneous analyses of streams in Colorado River 

main stem ................... 421

Diversions and Return Flows at and below Imperial Dam 422 

Yuma Main Canal below Colorado River Siphon at Yuma, 

Ariz. ..................... 422

Tributaries above Gunnison River .......... 424

Eagle River below Gypsum, Colo. ........*. 424

Gunnison River basin ................ 427

Gunnison River near Grand Junction, Colo. ..... 427

Dolores River basin ................ 430

Dolores River at Gateway, Colo. ......... 430

Miscellaneous analyses of streams in Dolores River 

basin in Colorado ................ 433

Green River basin ................. 434

Green River near Jensen, Utah .......... 434

Green River at Jensen, Utah ........... 437

Green River at Green River, Utah ......... 440

Price River at Woodside, Utah .......... 444

San Rafael River near Green River, Utah ...... 445

Miscellaneous analyses of streams in Green River 

basin in Utah .................. 450

Dirty Devil River basin ............... 451

Dirty Devil River near Kite, Utah ......... 451
X CONTENTS

Chemical analyses, etc. Continued

Colorado River basin--Continued Page 

San Juan River basin ................ 454

San Juan River at Rosa, N. Mex. ......... 454

San Juan River near Blanco, N. Mex. ....... 458

San Juan River near Bluff, Utah .......... 464

Animas River at Farmington, N. Mex. ....... 472

Paria River basin ................. 474

Paria River at Lees Ferry, Ariz. ......... 474

Bright Angel Creek basin .............. 477

Miscellaneous analyses of streams in Bright Angel 

Creek basin in Arizona .............. 477

Virgin River basin ................. 478

Virgin River at Littlefield, Ariz. ......... 478

Part 10-The Great Basin ............... 482

Jordan River basin ................. 482

Miscellaneous analyses of streams in Jordan River 

basin in Utah .................. 482

Salton Sea basin .................. 484

Miscellaneous analyses of streams in Salton Sea basin 

in California .................. 484

Part 12-Pacific Slope basins in Washington and Upper

Columbia River basin .............. 485

Kootenai River basin ................ 485

Kootenai River at Porthill, Idaho ......... 485

Miscellaneous analyses of streams in Kootenai River 

basin ...................... 488

Pend Oreille River basin .............. 489

Pend Oreille River at Metalline Falls, Wash. .... 489

Flathead River at Columbia Falls, Mont. ...... 4&1

Miscellaneous analyses of streams in Pend Oreille 

River basin ................... 494

Okanogan River basin ............... 495

Similkameen River at Oroville, Wash. ....... 495

Miscellaneous analyses of streams in Okanogan River 

basin in Washington ............... 498

Miscellaneous analyses of streams in Upper Columbia 

River basin ................... 499

Index ........................ 501

ILLUSTRATION

Figure 1. Map of the United States showing basins covered 

by the two water-supply papers on quality of surface 

waters in 1949.
QUALITY OF SURFACE WATERS 

OF THE UNITED STATES, 1949

PARTS 7-14 

INTRODUCTION

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

Most of the investigations carried on in cooperation with 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 maybe 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, covering the drainage basins shown in figure 1. The samples for which 

data are given were collected from October 1, 1948, to September 30, 1949. 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, total hardness, 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, 1949

Figure 1. Map of the United States showing basins covered 

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

in 1949. The shaded portion represents the section of the 

country covered by this volume; the unshaded portion represents the section of the country covered by Water-Supply 

Paper 1162.

During the year ended September 30, 1949, 110 regular sampling stations on 64 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 76 of 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 page 16.

Quantities of suspended sediment are reported for 43 stations during the year ended September 30, 1949. The sediment 

samples were collected from one to five times daily at most stations, depending on the rate of flow and changes in stage of the 

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 28 of the stations. As noted under "Remarks" in
COLLECTION AND EXAMINATION OF SAMPLES 3

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 determining 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. Pub. 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 given for most analyses and was determined by means of a conductance bridge using a standard potassium chloride solution as 

reference.
QUALITY OF SURFACE WATERS, 1949

SUSPENDED SEDIMENT

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

depth-integrating sampler (U. S. Inter-agency, 1948, pp. 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 trailsported sediment made it very difficult to make accurate estimates 

of sediment loads for individual days. However, estimated sedi-
EXPRESSION OF RESULTS 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, pp. 82-90) 

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

in the determination of particle sizes larger than 0.062 millimeter. 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 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 10, 000 parts per million, where necessary, by means 

of a sample splitter, in order to meet the upper limits recommended for the bottom-withdrawal tube method. The concentration of suspended sediment used in the bottom-withdrawal tube 

was often different from the concentration in the original suspension. The weight of sediment used is indicated in the tables 

of analyses.

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.

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 equiv-
6 QUALITY OF SURFACE WATERS, 1949

alents 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 (HC<V) - .0164

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

Magnesium (M^+) .0822 Chloride (Cl") .0282

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

Potassium (K+) .0256 Nitrate (NCV) .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 andpotassium 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 total 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 has been 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 moderate to high concentration, the proportion of potassium is much 

smaller than that of sodium.

Specific conductance values are expressed in reciprocal ohms 

(micromhos at 25°C). The discharge of the streams is reported 

in second-feet (see Stream Flow, p. 19 ) and the temperature in 

degrees Fahrenheit. Color is expressed in units of the platinumcobalt scale proposed by Hazen (1892, pp. 427-428). Hydrogenion concentration (pH) is given as the negative logarithm of the
COMPOSITION OF SURFACE WATERS 7

number of moles of ionized hydrogen per liter of water.

An average of analyses (arithmetical or weighted) for the water year are 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. Daily sediment loads are expressed in 

tons per day, and except for subdivided days are usually obtained by multiplying mean daily sediment concentration in parts 

per million by the mean daily discharge, and the conversion factor 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 

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 character of their concentrated underground sources during dry periods 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 much 

longer periods. The concentration of dissolved solids in a river

256683 O - 53 - 2
8 QUALITY OF SURFACE WATERS, 1949

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

by the addition of industrial or municipal wastes, or--in irrgated regions by return drain waters.

The mineral constituents and physical properties of natural 

waters reported in the tables of analyses include those that have 

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, and oxygen consumed are reported for certain 

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

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 scales; 

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

Silica also forms troublesome deposits on the blades of steam 

turbines.

Aluminum (Al)

Aluminum is usually present only in negligible quantities in 

natural waters except in areas where the waters have been in 

contact with the more soluble rocks of high aluminum content 

such as bauxite and certain shales. Acid waters often contain 

large amounts of aluminum. It may be troublesome in feed waters where it tends to be deposited as a scale on boiler tubes.

Manganese (Mn)

Manganese is dissolved in appreciable quantities from rocks 

in some sections of the country. Waters impounded in large reservoirs may contain manganese 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 in appreciable amounts. It is especially objectionable in water used in laundry work and in textile processing.
COMPOSITION OF SURFACE WATERS 9

Concentrations as low as 0. 2 part per million may cause a darkbrown or black stain in fabrics and on 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 

of dolomite or other magnesium-bearing rocks may contain from 

20 to 100 parts per ^million or more of magnesium.

Sodium and potassium (Na and K)

Sodium and potassium are dissolved from practically all rocks. 

Sodium is the predominant cation in some of the more highly mineralized waters found in the western United States. Natural waters that contain only 3 or 4 parts per million of the two together are 

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

total quantity of these constituents increases, the proportion of 

sodium becomes much greater. Moderate quantities of sodium 

and potassium have little effect on the usefulness of the water for 

most purposes, but waters that carry more than 50 or 100 parts 

per million of the two may require careful operation of steam 

boilers to prevent foaming. More highly mineralized waters that
10 QUALITY OF SURFACE WATERS, 1949

contain a large proportion of sodium salts may be unsatisfactory 

for irrigation.

Carbonate and bicarbonate (COs and HCOg)

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 (S04)

Sulfate is dissolved from many rocks and soils in especially 

large quantities from gypsum and from beds of shale. It is formed 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. Large quantities of chloride may 

affect the industrial use of water by increasing 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 surf ace waters is ordinarily very small compared to that of chloride. Fluoride in water in excess of about 

1 part per million 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. This defect 

becomes increasingly noticeable as the quantity of fluoride in 

water increases above 1 part per million. Recent investigations 

indicate that the incidence of dental caries is less when there are 

small amounts of fluoride present in the water supply than when 

there is none.
COMPOSITION OF SURFACE WATERS 11

Nitrate (NOs)

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 methemogloy 

binemiain 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, but irrigation water containing more than 1 part per million boron is detrimental to citrus and other boron - sensitive 

crops. Boron is reported in Survey analyses of surface waters 

in arid and semiarid regions of the Southwest and West where 

irrigation is practiced or contemplated, but few of the surface 

waters analyzed have harmful concentrations of boron.

Dissolved solids

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

in the water. It may also contain some organic matter and water of crystallization. Waters with less than 500 parts per million of dissolved solids are usually satisfactory for domestic and 

some industrial uses. 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 a rough indication
12 QUALITY OF SURFACE WATERS, 1949

of the oxidizable matter in the unfiltered and filtered samples 

and gives a partial measure of polluting materials such as sewage 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)

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 7. 0 indicates that the water is neither acid nor alkaline. Waters having pH values progressively lower than 7. 0 denote increasing acidity, whereas 

values progressively higher than 7. 0 denote increasing alkalinity. 

(See p. 13.) 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 capacity to conduct a current of electricity. The conductance 

varies with the concentration and degree of ionization of the different 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. (See p. 6 .)
COMPOSITION OF SURFACE WATERS 13

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 carbon dioxide, mineral acids, and salts especially sulfates of iron and aluminum that hydrolyzeto give hydrogen ions. 

Acid waters are very corrosive and generally contain excessive 

amounts of objectionable constituents, such as iron, aluminum, 

and manganese.

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 previously. 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
14 QUALITY OF SURFACE WATERS, 1949 

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, pp. 8-9; 

Wilcox, 1948, p. 6).

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 some instances, this normal process may have been accelerated by agricultural practices. Sediment also results from a number of industrial activities. In certain sections, waste mate rials 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 (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 particles in transport at any point depends on the type 

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

of flocculation present, time in transport, and characteristics 

of the transporting flow. The flow characteristics include velocity of water, turbulence, and the depth, width, and roughness of 

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

size of particles transported, as well as the total sediment load,
PUBLICATIONS 15

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, and 1948 (two volumes) for many of the 

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

942, 950, 970, 1022, 1030, 1050, 1102, and 1133 (Parts 7-14).

Geological Survey reports containing analyses of surfacewater samples collected prior to 1941 are listed below. Publications dealing largely with the quality of ground-water supplies 

and only incidentally covering the chemical composition of surfacewaters 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.
16 QUALITY OF SURFACE ¥ATERS, 1949

*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 ColoradoRiver 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 surf ace waters of Georgia, 1944. 

998. Suspended sedimentin the ColoradoRiver, 1925-41, 1947. 

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

The table on pp. 17-18 lists State and local agencies that cooperated in quality-of-water investigations in the drainage basins 

included in this volume. The locations of quality-of-water district offices responsible for the data collected in the drainage 

basins are given in the table, also.

Financial assistance was furnished by the Bureau of Reclamation of the United States Department of the Literior, in the operation of some stations in Arizona, Oklahoma, New Mexico, and 

Texas.

Financial assistance was also furnished by the Corps of Engineers, Department of Army, in the operation of some stations 

in New Mexico and Texas. The Corps also provided financial assistance and made determinations of sediment concentrations in 

their laboratory in connection with the sedimentation investigations of the Mississippi River at St. Louis. Assistance in collecting records was given by many municipal, State, and Federal agencies.

In addition to these cooperative programs, 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. 

Studies of suspended-sediment loads in the middle Rio Grande in 

New Mexico were initiated as a Federal project in 1948.
State Cooperating agency Drainage basin 

Arkansas

Missouri

New 

Mexico

Oklahoma

Institute of Science and Technology, 

University of Arkansas, Dr. 

W. W. Grigorieff, Director.

New Mexico Interstate Stream 

Commission, John H. Bliss, secretary, and Colfax County Board 

of Commissioners, C. F. Adams, 

chairman.

Oklahoma Planning and Resources 

Board, Clarence Burch, chairman, and Oklahoma A. & M. 

College Engineering Experiment 

Station, C. A. Dunn, Executive 

Director.

Lower Mississippi Rive

Lower Mississippi Rive

(sedimentation investigations at St. Louis).

Lower Mississippi Rive

Western Gulf of Mexic

Lower Mississippi Rive
State Cooperating agency Drainage basin 

Texas

Louisiana

Utah, 

California

Idaho, 

Washington, 

Montana

Texas State Board of Water Engineers, consisting of E. V. Spence, 

chairman, J. W. Pritchett, and 

H. A. Beckwith; Texas Red Bluff 

Water Power Control District. 

Lower Colorado River Authority, 

Brazos River Conservation and 

Reclamation District, and other 

local groups. Cities of Abilene, 

Amarillo, and Fort Worth.

Louisiana Department of Public 

Works, J. Lester White, Director.

Lower Mississippi Rive

Western Gulf of Mexic

Lower Mississippi Rive

Western Gulf of Mexic

The Great Basin.

Pacific Slope basins in 

Washington and Upper 

Columbia River basin.
DIVISION OF WORK 19

DIVISION OF 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 chemists and engineers as follows: 

In Arkansas G. A. Billingsley; in Missouri P. C. Benedict; 

in Oklahoma--!. W. Walling; in Arizona and New Mexico--J. D. 

Hem; in Colorado (except that part in Missouri River basin), Nevada, Utah, California, Washington, and Idaho C. S. Howard; 

in Texas and Louisiana--Burdge Irelan. Any additional analytical data on file for the sampling stations can be obtained by writing the responsible Survey district office.

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, pp. 1-112.

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

Geological Survey Water-Supply Paper 596-H.

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

occurring in infants fed milk diluted with well waters of 

high nitrate content: Jour. Pediatrics , vol. 29, p. 593.

Hazen, Alien, 1892, A new color standard for natural waters: 

Am. Chem. Jour., vol. 12, pp. 427-428.

Lane, E. W., et al, 1947, Report of the Subcommitte on Terminology: Amer. Geophys. Union Trans., vol. 28, p. 937.

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

their nature and management: U. S. Dept. Agr. Circ. 

707, pp. 8-9.
20 QUALITY OF SURFACE WATERS, 1949

Maxcy, Kenneth F., 1950, Report on the relation of nitrate concentrations in well waters to the occurrence of methemoglobinemia: Nat. 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, pp. 82-90; U. S. Engineer Office, St. Paul, 

Minn.

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, pp. 

70-76; U. S. Engineer Office, St. Paul, Minn.

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

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

of irrigation waters: U. S. Dept. Agr. Circ. 784, p. 6.
LOWER MISSISSIPPI RIVER BASIN 21

CHEMICAL ANALYSES, WATER TEMPERATURES, AND SUSPENDED SEDIMENT 

PART 7-LOWER MISSISSIPPI RIVER BASIN

MISSISSIPPI RIVER MAIN STEM 

MISSISSIPPI RIVER AT ST. LOUIS, MO.

LOCATION, At MacArtbur Bridge, 1.1 miles below gaging station which is 15 miles downstream

from Missouri River, and 180 miles upstream from Ohio River.

DRAINAGE AREA. 701,000 square miles (authority, Mississippi River Commission). 

RECORDS AVAILABLE. Sediment records: April 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 4,260,000 tons per day June 29; minimum,

16,700 tons per day Dec. 27. 

EXTREMES, 1947-49. Sediment loads: Maximum, 4,260,000 tons, per day June 29, 1949;

minimum, 16,700 tons per day Dec. 27, 1948. 

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in WaterSupply Paper 1147. Sediment loads for days when concentrations were not measured are

computed from estimated concentrations which are based on water discharge of the

Mississippi and and Missouri Rivers upstream from their junction.

Suspended sediment, water year October 194b to September 1949

Day

1 

2

Q

4 ......

5 

7 - 

9 ......

10 

11 ......

12 

13

14 ......

15 

16 

17 ......

18 ....

19 ......

20- 

21 

22 

23 

24 

25 

26 

27 ------

28 ------

29 ------

30 ,~

31 ... ...

TotalOctober

Mean 

discharge 

(secondfeet)

67, 200

7fl 7flfl iv, (UU

71, 400 

74 900

72, 800 

68, 600

79 RAA f£, OUU

77 700 

75[ 600

74, 200 

73, 500

72, 800

73 500 

14, 900

74, 200

76, 300

80, 600

72, 100

70, 700

70,000

70,000

72, 800

74, 900

72, 800

69, 300

68, 600

68, 600

70,000

70, 700

69,300

69, 300

2, 240, 800

Suspended sediment

Mean 

concentration 

(ppm)

CO 4

tf£o

CIO 9J.0

482

1=71 Oil

538

570

_

730

826

..

725

889

..

711

802

~

Tons 

per 

day

94 900

103^ 000

104,000

107, 000

101, 000 

89,300

104,000

120 000 mi ooo i no AAA il/9, UW

107, 000

104 000 us' ooo

162, 000

164, 000

152, 000

152, 000

142, 000

149, 000

156, 000

156,000

143, 000

136, 000

146, 000

166, 000

156, 000

132,000

153, 000

153,000

141, 000

137, 000

4,064, 000

November

Mean 

discharge 

(secondfeet)

69 300

72 800

93 500

ion AAA J.£u, UUU

126, 000 

112,000

88, 500

78, 400 

87, 600

88, 500 

86,800

91, 000

96 200 

87^ 600

82, 900

79,900

82,100

80, 600

83, 700

91,000

91,000

90,100

90,100

92, 700

96,200

92, 700

85, 200

75, 600

66,600

62, 500

--

2,641,100

Suspended sediment

Mean 

concentration 

(ppm)

721

781

2

OOA

, £dU

1,520

1,000

650

826"

810

_

728

865

~

_

791

651

--

773

_

1,000

Tons 

per 

day

135, 000

136, 000

197, 000 

71 Q nnfi li.9, UW

517, 000 

357, 000

o eq AAA £ttS t UUU

212, 000 

212, 000

155, 000 

152, 000

203,000

233, 000 

205, 000

181, 000

164, 000

161, 000

157, 000

195, 000

223, 000

203,000

192, 000

180, 000

163, 000

172, 000

193, 000

190, 000

195, 000

180, 000

114, 000

6, 549, 000

December

Mean 

discharge 

(secondfeet)

66, 600

68, 600

72, 800 

74 200

72, 800 

74,200

66, 600

64,500 

67,200

71,400 

67,200

65,200

65,200 

64,500

65,200

66, 600

66,600

62,500

61,900

65,200

57,900

54,700

52, 100

54,700

57,200

57,900

55, 300

56, 600

58,600

57,900

63,200

1,975, 100

Suspended sediment

Mean 

concentration 

(ppm)

KA(\ *nv

438

476

CfiQ

9O9

380

318

_

309

218

_

166

--

..

_

126

415

Tons 

per 

day

97 100

88* 900

86,100

87, 700

94 500

95,400

89, 400

99,100 

114, 000

114,000 

94,200

77 500

66, 900 

59,700

56,000

56,100

55, 600

49, 800

43, 500

38, 400

28, 100

24, 500

21,900

20, 100

18,500

17, 500

16, 700

19, 300

24, 000

46, 900

70,800

1, 872j, 000
22 LOWER MISSISSIPPI RIVER BASIN

MISSISSIPPI RIVER MAIN STEM Continued 

MISSISSIPPI RIVER AT ST. LOUIS, MO. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

Q

12

18

on

22

94

24

25

31

Total2

g

21 

22 ______ 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

61,800 

61,200 

62, 500 

66, 600 

70,000

76, 300 

77, 700 

83, 700 

95, 300 

101, 000

99, 800 

130, 000 

143, 000 

124, 000 

101, 000

106, 000 

135,000 

167, 000 

202, 000 

202, 000

177, 000 

165, 000 

161, 000 

210, 000 

255, 000

253,000 

234, 000 

276, 000 

271, 000 

229, 000 

194, 000

4,590,900

Suspended sediment

Mean 

concentration 

(ppm)

234

242 

194

230

798 

820 

529

1,360 

1,020

Tons 

per 

day

56, 700 

46, 600 

39, 500 

38, 300 

42,900

49,900 

40, 700 

38,400 

48, 900 

62,700 

91,900 

280, 000 

317,000 

177, 000 

112, 000

127, 000 

209, 000 

432, 000 

976, 000 

911,000 

650, 000 

486, 000 

439, 000 

578, 000 

923, 000 

1,040, 000 

903, 000 

1,310, 000 

1,100, 000 

723, 000 

516, 000

12,770,000

April

389,000 

409, 000 

413, 000 

395, 000 

376, 000 

364, 000 

354,000 

340, 000 

329, 000 

327, 000

327, 000 

325, 000 

331, 000 

338, 000 

340, 000

331,000 

333, 000 

333, 000 

331, 000 

327, 000 

314, 000 

290, 000 

264, 000 

242, 000 

220, 000 

210, 000 

202, 000 

193, 000 

185, 000 

177, 000

9.309.000

2,310

3,050 

2,440 

2,240

2,360 

2,970 

2,520

1,810 

1,580 

1,330

1,150

961 

863

2,430,000 

2,960,000 

3,700,000 

3,250,000 

2,730,000 

2,400,000 

2,180,000 

2,060,000 

2,010,000 

2,030,000

2,080,000 

2,330,000 

2,650,000 

2,520,000 

2,310,000 

1,970,000 

1,750,000 

1,630,000 

1,520,000 

1,390,000 

1,250,000 

1,040,000 

891,000 

784,000 

683,000

601,000 

526,000 

464,000 

431,000 

399,000

5^970,000

February

Mean

charge 

(secondfeet)

177, 000 

163, 000 

149, 000 

136, 000 

132, 000

126, 000 

122, 000 

119, 000 

132, 000 

147, 000

154,000 

159,000 

149, 000 

172, 000 

264, 000

302, 000 

308, 000 

299, 000 

301, 000 

313,000

325, 000 

366, 000 

354,000 

331, 000 

323,000 

318, 000 

318, 000 

333, 000

6,492,000

Suspended sediment

Mean 

concentration 

(ppm)

369 

468

1,230

1,160 

973

897 

1,700 

1,280

Tons 

per 

day

444, 000 

383, 000 

312,000 

253, 000 

202, 000

156,000 

129, 000 

119, OOP 

135, 000 

161, 000

195, 000 

217, 000 

202, 000 

329, 000 

877, 000 

1,160, 000 

965, 000 

786, 000 

691, 000 

669, 000

787, 000 

1,720,000 

1,620,000 

1,300,000 

1,120,000

1,040,000 

1,070,000 

1,290,000

JS33QQOO

May

165, 000 

153,000 

150,000 

153,000 

160, 000

160, 000 

156,000 

146, 000 

143, 000 

142, 000

147, 000 

155, 000 

156, 000 

149, 000 

148, 000 

154,000 

154, 000 

153,000 

154, 000 

148, 000

146, 000 

158, 000 

165, 000 

192, 000 

214, 000 

218, 000 

199, 000 

199, 000 

190, 000 

177, 000 

173,000

5,077,000

637 

810 

1,090

666

913 

820

938 

1,040 

940

1,210 

1,750

1,970 

2,370

323, 000 

263, 000 

252,000 

335, 000 

492, 000

471, 000 

375, 000 

301, 000 

257, 000 

275, 000

362, 000 

402, 000 

345, 000 

303, 000 

330, 000

390, 000 

424, 000 

430, 000 

420, 000 

376, 000

358, 000 

420,000 

539, 000 

778, 000 

1,010,000

1,120,000 

1,060,000 

1,110,000 

1,110,000 

1,080,000 

1,110,000

LQ82QOOO

March

Mean

charge 

(secondfeet)

336, 000 

334, 000 

334, 000 

322, 000 

301, 000

284, 000 

274, 000 

292, 000 

358,000 

416, 000 

422, 000 

416, 000 

398, 000 

376, 000 

370, 000 

360, 000 

331, 000 

294, 000 

261, 000 

241, 000

228, 000 

234, 000 

232, 000 

230, 000 

244, 000 

290, 000 

331, 000 

346, 000 

356,000 

358, 000 

364, 000

9,933,000

Suspended sediment

Mean 

concentration 

(ppm)

1,710 

1,300

918 

1,670

3,000 

2,540

1,830

1,440 

1,210

885

864 

830

2,050 

2,380

Tons 

per 

day

1, 570, 000 

1, 540, 000 

1,350,000 

1, 130, 000 

935, 000

774, 000 

679, 000 

756, 000 

1,610,000 

3, 480, 000

3, 420, 000 

2, 850, 000 

2,310,000 

1, 860, 000 

1, 590, 000 

1, 400, 000 

1, 080, 000 

841, 000 

696, 000 

612, 000

558,000 

559, 000 

546, 000 

537, 000 

547, 000

987, 000 

1, 530, 000 

1, 920, 000 

2, 230, 000 

2, 300, 000 

2, 280, 000

44,480,000

June

167, 000 

168, 000 

214, 000 

269, 000 

294, 000

304, 000 

299, 000 

280, 000 

253, 000 

236, 000

220, 000 

206, 000 

204, 000 

207, 000 

240, 000 

292, 000 

308,000 

297,000 

247, 000 

211,000

186, 000 

174, 000 

174, 000 

203,000 

210,000

228, 000 

306, 000 

316, 000 

314, 000 

282, 000

7,309,000

1,970

5,050 

4,880

3,310 

2,080

2,060

2,540 

3,430

3,370 

2,310 

1,870

2,620 

5,030

-

1, 050, 000 

975, 000 

1, 140, 000 

2, 020, 000 

3,370,000

4,150,000 

4,200,000 

3, 690, 000 

2, 920, 000 

2, 390, 000

1, 970, 000 

1, 400, 000 

1, 150, 000 

1, 100, 000 

1, 330, 000

2, 000, 000 

2, 850, 000 

3, 340, 000 

2, 650, 000 

1, 920, 000

1, 380, 000 

1, 090, 000 

963, 000 

1, 020, 000 

1, 050, 000

1, 240, 000 

2, 160, 000 

3,910,000 

i, 260, 000 

J, 300, 000

65,990,000
MISSISSIPPI RIVER MAIN STEM 23

MISSISSIPPI RIVER MAIN STEM Continued

MISSISSIPPI RIVER AT ST. LOUIS, MO. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Dny

ID

25

97

no

30 

31 

TotalJuly

Mean 

discharge 

(secondfeet)

258,000 

264, 000 

264, 000 

238, 000 

207, 000

180, 000 

160, 000 

156,000 

177, 000 

200,000 

241, 000 

247, 000 

236, 000 

229, 000 

218,000

222, 000 

200, 000 

189, 000 

172, 000 

190, 000 

242, 000 

207, 000 

188, 000 

174, 000 

172, 000

158,000 

142, 000 

126, 000 

114, 000 

120, 000 

135, 000

6,024,000

Suspended sediment

Mean 

concentration 

(ppm)

3,920

3,280 

1,710

4,560

2,340 

2,080 

1,810

2,080 

2,070 

842

851

967 

758

Tons 

per 

day

 2, 730, 000 

2,870,000 

3, 120, 000 

2, 730, 000 

1, 830, 000

831, 000 

989,000 

1, 920, 000 

1,850,000 

1, 560, 000

1, 520, 000 

1,450,000 

1,330,000 

1,220,000 

1, 070, 000 

1, 080, 000 

1, 030, 000 

1, 060, 000 

1, 020, 000 

1, 060, 000

849, 000 

471, 000 

423, 000 

400, 000 

395, 000

367, 000 

371, 000 

304,000 

233, 000 

229,000 

251, 000

36,540,000

August

Mean

charge 

(secondfeet)

138, 000 

138, 000 

137, 000 

124, 000 

112,000

116, 000 

107, 000 

93,500 

89, 300 

84, 400

83, 700 

93, 500 

117, 000 

118, 000 

101, 000

98, 900 

102, 000 

99, 800 

93, 500 

85, 200

93,500 

105, 000 

97, 100 

95, 300 

92, 700

86, 800 

82, 900 

79, 900 

79, 900 

80,600 

80, 600

3, 106, 100

Suspended sediment

Mean 

concentration 

(ppm)

671 

600 

540

658 

573 

533

465

530 

830

834 

795

1,080

847 

671

-

Tons 

per 

day

250,000 

238, 000 

222, 000 

188, 000 

163, 000 

182, 000 

186, 000 

166, 000 

151,000 

131,000

125, 000 

135, 000 

147, 000 

129, 000 

127, 000

132, 000 

146, 000 

181, 000 

210, 000 

204, 000

218, 000 

236, 000 

210, 000 

205, 000 

231, 000

248, 000 

214, 000 

195, 000 

183, 000 

163, 000 

146, 000

5,662,000

September

Mean

charge 

(secondfeet)

81,400 

76,300 

72,800 

71,400 

73, 500

69, 300 

65, 900 

65, 900 

67,200 

70, 000

72,100 

92, 700 

135, 000 

197, 000 

223,000 

222, 000 

202, 000 

172, 000 

150,000 

150,000

138, 000 

121, 000 

104, 000 

94,400 

91, 000

86, 000 

78,400 

74, 200 

74,200 

72,800

3, 263, 500

Suspended sediment

Mean 

concentration 

(ppm)

625

524 

600

745

1,580 

2,700

3,500

2,710

2,220 

1,420

1,050 

722 

671

Tons 

per

day

138, 000 

129, 000 

122, 000 

111,000 

109,000

98, 000 

107,000 

125, 000 

135, 000 

145, 000

158,000 

268, 000 

576, 000 

1, 440, 000 

2, 050, 000 

2, 100, 000 

1, 700, 000 

1,350,000 

1, 100, 000 

980, 000

827, 000 

608, 000 

399, 000 

321, 000 

287, 000 

244, 000 

185, 000

145, 000 

132, 000

16,220,000

Total discharge for year (second-foot-days) 

Total load for year (tons) 

61,961,500

282,300,000

256683 O - 53 - 3
ST. FRANCIS RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN ST FRANCIS RIVER BAS

Chemical analyses, in parts per million, October 1948 to March 

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

pH

Specific 

conductance 

(micromhos at 

25" C )

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

B

b

(H

ST. FRANCIS RIVER AT MARKED TREE
WHITE RIVER BASIN 

WHITE RIVER AT COTTER, ARK.

LOCATION. At bridge on U. S. Highway 62 at Cotter, Baxter County, about 5 miles downstream from 

DRAINAGE AREA.--6,115 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids; Maximum, 188 parts per million Jan. 24, 26-27; minimum, 11

Total lardness: Maximum, 173 parts per million Nov. 21-30; minimum, 82 parts per million Jan. 2

Water temperatures: Maximum, 84* F July 5-6, 22-25, 27-Aug. 1, 3-4, 13, 19; minimum, 36* F J

EXTREMES, 1947-49. Dissolved solids: Maximum, 192 parts per million Dec. 11-20, 1947; minimum, 

Total hardness: Maximum, 173 parts per million Nov. 21-30, 1948; minimum, 66 parts per million 

Water temperatures: Maximum, 84° F July 5-6, 22-25, 27-Aug. 1, 3-4, 13, 19, 1949; minimum. 36

REMARKS. Discharge records for gaging station near Flippin, Ark., for water year October 1948 to 

No appreciable inflow between gaging station and sampling point except during periods of heavy 

daily samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Oct. 1-10, 1948 -----

Oct 21 31

Jan. 1-10, 1949 

Feb 21 28

Mar 21 .31 ___ . _ 

Mean 

discharge 

(secondfeet)

739 

568 

461 

1,987 

1,284 

882

975 

5,060 

4,625 

4,174 

5,370 

12, 730 

47, 670 

58, 740

12, 980 

11,310 

7,440 

51, 130 

11, 550 

6,490 

6,821 

12 Ran

Temperature

Color

2

4 

5 

6 

7 

6

4

5 

12 

4 

6 

7 

32 

55

10 

4 

4 

10 

9 

3 

2

4

PH

Specific 

conductance 

(micromhos at 

25° C )

294 

291 

299 

300 

317 

324

325 

304 

284 

281 

277 

273 

337 

175

241 

279 

270 

178 

246 

269 

295

201

Silica 

(SiO.)

8.6

Iron 

(Fe)

0.02

Calcium 

(Ca)

26 

36 

38 

38 

42 

43

41 

38 

36 

37 

32 

34 

34 

21

32

38 

38 

21 

30 

38 

41 

4n

Magnesium 

(Mg)

15 

13 

15 

15 

15 

16

16 

15 

12 

13 

14 

13 

10 

7.2

9.4 

11 

11 

7.5 

9.7 

11 

14

19!

Sodium 

(Na)

Potassium 

(K)

17 

8.5 

5.4 1.4 

5.2 

7.2 

5.7

5.9 

5.8 

7.7 

3.2 

8.2 

6.9 

7.9 

4.2

3.6 

6.1 

3.3 

4.5 

7.7 

3.2 

3.8

R 1
RIVER BASitf Continued 

WHITE RIVER AT COTTER, ARK. Continued 

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Apr. 1-10, 1949 

Mav 21 31

Average ~ »--

Mean 

discharge 

(secondfeet)

7,983 

4,778 

3,227 

8,605 

5,715 

15, 170

7,781 

13, 520 

9,560 

4,625 

6,918 

8,792 

2,168

1,432 

1,324 

811 

734 

1,332 

3,963

7,177

Temperature

Color

4 

3 

4 

5 

4 

7

4 

5 

13 

4 

7 

4 

4

4 

3 

4 

3 

3 

11

PH

Specific 

conductance 

(micromhos at 

25° C )

267 

274 

271 

256 

281 

258

273 

264 

215 

265 

275 

275 

294

277 

274 

289 

303 

308 

280

277

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

36 

37 

35 

34 

39 

34

39 

37 

24 

37 

38 

40 

40

38 

38 

39 

41 

41 

41

36

Magnesium 

(Mg)

11 

12 

12 

12 

13 

11

12 

11 

9.4 

11 

10 

9.6 

12

14 

13 

14 

17 

17 

12

12

Sodium PO**S - 

, > slum 

(Na) (K)

2.8 

2.0 

5.2 

2.2 

1.7 

4.1

3.4 

4.9 

9.7 

4.3 

7.1 

6.7 

6.4

1.1 

1.1 

1.5 

.6 

3.7 

3.2

5.1

B

I/Includes equivalent of 10 parts per million of carbonate (CO3). 

3_/Includes equivalent of 9 parts per million of carbonate (CO,). 

3/Includes equivalent of 8 parts per million of carbonate (CO,).
Temperature (° F ) of water, water year October 1948 

Day

2

o

1 9

1 o

19

o*

go

29

31

October

53

54

November

54

43

RTJ

53

December

42

40

40

42

OQ

49

CO

January

OQ

42

43

45

43

OQ

February

39

45

en

March

KO

Apri
WHITE RIVER BASIN Continued 

WHITE RIVER AT NEWPORT, ARK.

LOCATION. At gaging station at bridge on U. S. Highway 67 at Newport, Jackson County, 7J miles down

DRAINAGE AREA.---19,812 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1949.

Water temperatures: October 1945 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 194 parts per million Oct. 1-20; minimum, 98 parts p

Total hardness: Maximum, 176 parts per million Oct. 21-31: minimum, 51 Darts oer million Jan. 25-

Water temperatures: Maximum,'84° F Aug. 14-15; minimum, 36° F Dec. 23. 

EXTREMES, 1945-49. Dissolved solids: Maximum, 194 parts ner million Oct. 1-20, 1948; minimum, 98 p

Total hardness: Maximum, 180 parts per million Oct. 11-20, 1947: minimum, 51 parts per million Ja

Water temperatures: Maximum, 87° F Aug. 4, 9, 1947; minimum, 36° F Dec. 23, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sunply P

samples available in district office at Fayetteville, Ark.

Chemical analyses, In parts per million, water year October 1948 to Sep

Date of collection

Oct 11 20

Oct 21 31

Mar 11 20

Mar 9.1-31 -- ____ 

Mean 

discharge 

(secondfeet)

5,576 

5,419 

5,381 

7,366 

8,178 

8,530

7,894 

8,920 

34, 920 

25, 980 

28,490 

25', 480 

52,800 

202, 200

139,000 

88, 340 

60,420 

118,600 

85, 750 

44, 500 

36,900

40 'JKn

Temperature 

CF)

Color

5 

5 

5 

5 

5 

10

5 

5 

80 

20 

5 

10 

15 

10

8 

30 

14 

8 

22 

10 

8 

is

PH

8.6 

7.7 

7.6 

8.1 

8.1 

8.1

8.2 

8.4 

8.3 

8. 3 

7.6 

7.8 

7.7 

7.4

7.8 

7.8 

7.5 

8.0 

8.0 

8.3

7 «

Specific 

conductance 

(micromhos at 

25° C )

340 

343 

344 

320 

317 

298

311 

329 

192 

231 

217 

239 

190 

123

137 

182 

208 

163 

189 

217 

237 

993

Silica 

(SiO,)

7.8 

6.4 

6.2 

3.5 

6.0 

7.8

5.9 

2.0 

11 

8.2 

5.6 

7.6 

7.4 

12

7.0 

7.6 

6.3 

8.5 

9.2 

7.6

Iron 

(Fe)

0.02 

.02 

.03 

.02 

.02 

.02

.01 

.09 

.09 

.09 

.09 

.11 

.12 

.20

.08 

.06 

.15 

.07 

.05 

.03 

nA

Calcium 

(Ca)

32 

32 

36 

30 

26 

25

28 

37 

22 

28 

25 

28 

23 

12

15 

20 

24 

18 

23 

26 

28

Magnesium 

(Mg)

21 

21 

21 

19 

18 

17

19 

19 

9.4 

12 

11 

13 

9.3 

5.2

8. 2 

9.4 

11 

7.4 

10 

11 

13

Sodium 

(Na)

12 

11 

6.4 

2.5 

2.5 

2.1

2.6 

3.1 

1.5 

2.0 

5.1 

2.5 

2.7 

7.7

1 

1.5 

2.0 

1.3 

2.0 

1.7 

1.6 

* 1

Potassium 

(K)

0.8 

.8 

.8 

.8 

.2 

.8

.8 

2.4 

1.4 

1.2 

.3 

.5 

.6 

.4

0 

.4 

.2 

.2 

.2 

.6 

.2 

e.

Bic

bon

(HC

1/

2

2

1

I/Includes equivalent of 14 parts per million of carbonate (CO,). 

2/Includes equivalent of 12 parts per million of carbonate (CO,).
Aor 21 30

MAY 21 31

AUK 21 31

50, 940 

30, 330 

20, 720 

23,210 

19, 220 

26,050

22, 160 

31, 160 

20,980 

22, 780 

40, 530 

14,890

10, 090 

9,726 

8,689 

7,460 

8,061 

10, 560

30, 330

10 

5 

5 

5 

5 

4

4 

4 

3 

14 

9 

2

0 

5 

5 

3 

3 

5

--

8.0 

8.2 

8.2 

8.5 

7.6 

7.9

7.9 

7.7 

7.7 

7.6 

7.8 

7.8

8.3 

8.2 

8.5 

8.1 

8.1 

8.2

--

213 

248 

266 

276 

288 

281

269 

255 

262 

229 

237 

311

325 

327 

333 

315 

311 

308

260

8.8 

7.7 

6.8 

8.4 

9.7 

12

11 

11 

11 

7.9 

9.8 

11

12 

11 

12 

13 

13 

13

- 8..7

.03 

.03 

.22 

.02 

.01 

.01

.01 

.01 

.02 

.04 

.04 

.02

.02 

.02 

.02 

.02 

.02 

.04

0.05

24 

30 

34 

33 

36 

33

31 

30 

32 

24 

28 

32

39 

38 

39 

37 

37 

34

29

11 

13 

14 

14 

14 

14

13 

12 

13 

12 

12 

17

19 

19 

19 

20 

20 

18

14

2.2 

2.0 

2.8 

4.2 

2.1 

4.5

7.8 

4.1 

3.2 

5.9 

2.9 

8.4

3.5 

3.7 

3.4 

3.6 

3.1 

3.8

3.7

.8 

1.4 

.8 

.8 

1.5 

.9

.8 

.4 

.0 

.2 

.2 

.5

.2 

.2 

.1 

.6 

.4 

1.3

0.6

3/Includes equivalent of 8 parts per million of carbonate (COy). 

4/Includes equivalent of 5 parts per million of carbonate (CO,).
WHITE RIVER BASIN--Con

WHITE RIVER AT NEWPORT, ARK

Temperature (" F ) of water, water year October 194

Day

13

ift

19

20

21

23

25

27

30

31

October

59

CQ

era

November

CO

59

CO

52

57

54

49

53

December

52

53

54

00

January

45

45

49

CO

52

43

43

4?

jlO

February

oq

49

49

en

AO

March

52

49

49

CO

57

57

A
WHITE RIVER BASIN Continued 

WHITE RIVER AT CLARENDON, ARK.

LOCATION.--At gaging station at railroad bridge at Clarendon, Monroe County, 500 feet downstream fr

DRAINAGE AREA. 25,270 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1948 to September 1949.

EXTREMES, 1948-49.--Dissolved solids: Maximum, 198 parts per million Sept. 1-10, 21-30; minimum, 8

Total hardness: Maximum, 175 parts per million Octv 11-20; minimum, 38 parts per million Feb. 9-

Water temperatures: Maximum, 88° f Sept. 24; minimum, 41° F Dec. 30, Jan. 30-Feb. 1.

EXTREMES, 1947-49. Dissolved solids: Maximum, 198 parts per million Sept. 1-10, 21-30, 1948; mini

Total hardness: Maximum, 175 parts per million Oct. 11-20, 1947, Oct. 11-20, 1948; minimum, 29 p

Water temperatures: Maximum, 88° F. Sept. 24, 1948; minimum, 41 F. Dec. 30, 1948, Jan. 30-31, 1

REMARKSi Records of discharge for water year October 1948 to September 1949 furnished by Corps of 

samples available in district office at Fayetteville, Ark.

Chemical analyses, In parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948=- -

Jan. 1-10, 1949 -----

Mean 

discharge 

(secondfeet)

6,625 

6,273 

6,117 

7,299 

10,620 

14,100

12,590 

12,910 

40,320 

46,390 

44,640 

75, 760

198,800 

150,300 

126,600 

104,600 

73,360 

63,250

88,950 

67,720 

48,040

35 7«n

Temperature

Color

4 

4 

5 

7 

22 

40

36 

27 

75 

24 

23 

25

14 

23 

14 

18 

22 

16

23 

18 

18 

14

PH

Specific 

conductance 

(micromhos at 

25* C )

338 

341 

346 

327 

262 

210

218 

236 

146 

137 

135 

111

116 

84.4 

123 

121 

123 

134

124 

133 

155 

1R1

Silica 

(S102)

Iron 

(Fe)

Calcium 

(Ca)

31 

37 

35 

37 

29 

22

18 

25 

14 

14 

14 

12

15 

9.8 

13 

15 

14 

16

14 

15 

17 

20

Magnesium 

(Mg)

19 

20 

19 

19 

14

n 

11

13 

6.4 

8.3 

5.9 

5.4

4.6 

3.4 

7.7 

5.9 

6.0 

6.4

5.4 

5.9 

7.9 

9.3

Sodium 

(Na)

Potassium 

(K)

16 

8.1 

14 

6.8 

6.8 

7.2

13 

6.0 

7.1 

3.1 

8.7 

4.6

2.1 

3.4 

1.3 

2.6 

3.3 

3.5

5.4 

1.8 

4.3 

3.1

B

b

(

I/Includes equivalent of 16 parts per million of carbonate (CO,). 

2/Includes equivalent of 7 parte per million of carbonate (CO,). 

i/Includes equivalent of 12 parts per million of carbonate (CO,).
WHITE RIVER BASIN Continued 

WHITE RIVER AT CLARENDON, ARK. Continued 

Chemical analyses, in parts per million, water year October 1948 to Septemb

Date of collection

May 1-10, 1949 ~

Maw 91 91

Average 

Mean 

discharge 

(secondfeet)

28,610 

26,630 

22,150

27,160 

31,130 

38,500 

23,000 

19,130 

33,830 

35,150

14,360 

11,500 

10,710 

8,714 

8,504 

10,880

41,750

Temperature

Color

8 

7 

7

8 

18 

23 

6 

4 

10 

6

6 

5 

6 

7 

4 

4

-

pH

Specific 

conductance 

(micro - 

mhos at 

25" C )

227 

247 

280

254 

206 

187 

236 

275 

204 

232

314 

303 

293 

306 

312 

308

218

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

27 

30 

32

31 

24 

23 

29 

30 

25 

29

35 

37 

34 

37 

38 

38

25

Magnesium 

(Mg)

12 

12 

14

12 

9.7 

8.9 

11 

14 

8.5 

11

15 

16 

16 

17 

18 

18

11

Sodium 

(Na)

2.

4. 

15

7. 

5. 

5. 

3. 

6. 

4. 

3.

8. 

5. 

6. 

7. 

4. 

1.

5.

Potassium 

(K)

6 

6

8 

3 

5 

5 

8 

0 

3

0 

7 

2 

9 

9 

8

9

B

b

(H

4/Includes equivalent of 10 parts per million of carbonate (CO,). 

SyIncludes equivalent of 13 parts per million of carbonate (CO,).
Temperature (° F ) of water, water year October 19

Day

2

1 9

13 » --

i ft

19

on

91

22

90

94

9R

October November

CO

December

45

49

January

49

40

AQ

50

4fl

50

43

February

42

52

March

49

53

CO

52

53

54

CQ

A
WHITE RIVER BASIN--Continued 

NORTH FORK RIVER AT NORFORK DAM NEAR NORFORK, 

LOCATION. At gaging station at Norfork Dam, 4.3 miles northeast of Norfork, Baxter County.

DRAINAGE AREA. 1,806 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1949.

Water temperatures: October to December 1946. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

1,340 

1,270 

1,460

1,400 

11,000 

2,630 

2,540

1,510 

1,450 

4,710 

1,640

Temperature 

(°F)

51 

43

Color

5 

5 

0

0 

5 

10

5

5 

15 

4 

5

PH

8.1 

7.9 

7.9

8.3 

8.1 

7.4 

8.0

7.8 

7.5 

7.6 

7.5

Specific 

conductance 

(micrombos at 

25* C )

328 

316 

308

311 

298 

258 

252

251 

191 

262 

272

Silica 

(SiO.)

5.4 

5.3 

2.4

4.6 

4.6 

3.4 

5.6

8.0 

6.6 

6.3 

5.6

Iron 

(Fe)

0.04 

.02 

.02

.02 

.08 

.04 

.07

.02 

.01 

.02 

.01

Calcium 

(Ca)

30 

27 

26

29 

30 

27 

21

22 

27 

29 

32

Magnesium 

(Mg)

22 

21 

22

22 

22 

16

15

17 

16 

16 

18

Sodium 

(Na)

6.9 

1.2 

1.2

.4 

4.3 

5.9 

12

1.4 

1.8 

1.5 

1.6

Potassium 

(K)

1.3 

.9 

.7

1.2 

.4 

.2 

.8

.5 

1.0 

1.2 

1.2
WHITE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN WHITE RIVER BASIN IN 

Chemical analyses, in parts per million, March to September 1949

Date of collection

Mean 

discharge 

(secondfeet)

Temperature

(°F)

PH

Specific 

conductance 

( micro - 

mhos at 

25" C )

Silica 

(810.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bic

bon

(HC

WHITE RIVER AT CALICO ROCK

Mar. 15, 1949 12,220 

2,410

279 

281

WHITE RIVER AT BATESVILLE

Mar. 18, 1949 13,400 

7,070 

3,280

262 

270 

311

36 12 2. 8

1/

KINGS RIVER NEAR BERRYVILLE

Aug. 30 

19 

770 

417 

36

273 

167 

178 

286

30 

27

12 

5.1

9.6 

3.1

BUFFALO RIVER NEAR ST. JOE

1,050 

52

180 

239

BUFFALO RIVER NEAR RUSH

1,320 

87

203 

168

BLACK RIVER NEAR CORNING

Mar. 17, 1949 3,700 

505

122

267

BLACK RIVER AT POCAHONTAS

Mar. 16, 1949 12,400 

3,020

173 

283

1/

_!/ Includes equivalent of 17 parts per million of carbonate (CO,). 

_2/ Includes equivalent of 7 parts per million of carbonate (CO,).
WHITE RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN WHITE RIVER 'BASIN IN ARK

Chemical analyses, in parts per million, March to September 1949--Con

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

PH

Specific 

conductance 

(micromhos at 

25* C )

Silica 

(S10.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bic

bon

(HC

BLACK RIVER AT BLACK ROCK

Mar 12 1949 7,200 

4,640

307 

352

,3/

SPRING RIVER AT IMBODEN 

1,950 

585

369 

395

3/

ELEVEN POINT RIVER NEAR ELEVENPOINT 

2,020 

797

560 

38

280 

346

J/2

LAGROE BAYOU NEAR STUTTGART 

57.2 

216

_3/ Includes equivalent of 10 parts per million of carbonate (CO,). 

_4/ Includes equivalent of 13 parts per million of carbonate (CO,). 
ARKANSAS RIVER BASIN 

ARKANSAS RIVER AT FORT LYON, COLO.

LOCATION. Below mouth of Purgatoire River at Fort Lyon, Bent County, 5 miles east of Las Animas, 

DRAINAGE AREA. Approximately 18,000 square miles.

RECORDS AVAILABLE. Chemical analyses: January 1946 to August 1949 at Fort Lyon, January 1944 to 

__River and fragmentary, at various locations above John Martin Dam Auguet 1942 to December 1943

EXTREMES, 1948-49. Dissolved solids: Maximum, 3,320 parts per million Apr. 1-10; minimum, 613 pa

Total hardness: Maximum, 1,710 parts per million Oct. 1-10; minimum, 388 parts per million June 

EXTREMES, 1946-49. Dissolved solids: Maximum, 3,380 parts per million May 21-31, 1946; minimum, 

Total hardness: Maximum, 1,710 parts per million Oct. 1-10, 1948; minimum, 388 parts per millio

REMARKS. Records of specific conductance of daily samples available in district office at Albuque

Chemical analyses, in parts per million, October 1948 to Augus

Date ot collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 -----

Fah 91 90

War. S1.S1 .........

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

7.7 

7.8 

7.8 

7.8 

7.8 

7.8

7.8 

7.7 

7.7 

7.7 

7.6 

7.6

7.8 

7.9 

7.9 

7.8 

7.9 

7 a

Specific 

conductance 

(micromhos at 

25" C )

3,830 

3,670 

3,760 

3,640 

3,590 

3,420

3,160 

3,150 

3,270 

3,280 

3,180 

3,380

3,170 

3,030 

3,080 

3,260 

3,560 

3 finn

Silica 

(SiO.)

17 

17 

16 

14 

15 

15

15 

19 

19 

18 

18 

19

17 

18 

19 

17 

16 

17

Iron 

(Fe)

Calcium 

(Ca)

404 

382 

388 

368 

364 

340

316 

312 

332 

338 

334 

350

330 

322 

318 

338 

370 

3fi4

Magnesium 

(Mg)

171 

162 

164 

165 

161 

150

141 

142 

147 

146 

142 

154

141 

136 

135 

142 

157 

1Sfi

Sodium 

(Na)

Potassium 

(K)

383 

369 

390 

365 

366 

347

307 

313 

318 

315 

307 

326

317 

285 

315 

331 

367 

375

Bicarbonate 

(HCO,)

310 

329 

327 

318 

325 

306

307 

290 

322 

324 

324 

348

294 

309 

301 

300 

317 

315

Sulfate 

(S04)

2,060 

1,930 

1,990 

1,910 

1,880 

1,750

1,600 

1,620 

1,670 

1,670 

1,630 

1,730

1,660 

1,550 

1,600 

1,700 

1,880 

l.ftftO

Chl

rid

(Cl
38 LOWER MISSISSIPPI RIVER BASIN

to co t- to o ^*

§

O Q) 

 P tJ * * PJ t- M

O N t- 0> <O

) os cO m os m to <

o s "8 » £ _

'

O O» O CO CJ 0

S

0» O 00 t- tCO ^< O

55 S

eo « »H oo t- i- St-

-Q o

ia«2aa ia«l!2;

hht:>>>>>> S S 5J S ^ >>5 5. g. g. « « « eogg Ti*! ?-?-?SSS

un ul
ARKANSAS RIVER BASIN Continued

M ARKANSAS RIVER AT CADDOA, COLO.

en

S (Monthly composites of samples collected at irregular intervals at gaging station just upstream from 

u Drainage area, 18,935 square miles.)

Chemical analyses, in parts per ipilUon, October 1948 to Jul

Date of collection

Oct. 29, 1948 -----

Dec. 13, 18, 23,

Jan. 6, 10, 14, 19,

9 A 1 Q4Q

Feb. 1, 4, 8, 14,

Mar. 1, 3, 7, 10,

91 9 A

May 13, 20-23 

July 1, 8, 14, 22 

Mean 

discharge 

(secondfeet)

pH

7.9 

7.8

7.4 

7.5 

7.5

7.6

7.7 

7.8 

7.8

Specific 

conductance 

(micromhos at 

25' C )!/

1,760 

3,860

3,680 

3,920 

3,740

3,590 

2,310 

2,380 

2,610 

2,100

Silica 

(SiO,)

17 

17 

14

14

Iron 

(A)

Calcium 

(Ca)

169 

336

308 

344 

322

322

238 

256 

203

Magnesium 

(Mg)

69 

165

167 

169 

167

156

102 

117 

85

Sodium 

(Na)

Potassium 

(K)

148 

450

439 

476 

446

417

205 

233 

186

Bicarbonate 

(HCO,)

177 

338

440 

418 

448

353 

215 

190 

277 

172

Sulfate 

(S04)

795 

1,980

1,830 

2,000 

1,870

1,840

1,170 

1,260 

1,010

Chloride 

(Cl)

37 

108

101 

113 

103

100 

51 

59 

62 

46

I/Records of specific conductance of individual samples available in district office at Albuquerque, N. Mex. Sampling discontin
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT KAW CITY, OKLA.

LOCATION. At bridge in Kaw City, Kay County, a quarter of a mile above Beaver Creek. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Vater temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,580 parts per million Jan. 11-13; minimum, 241 p

Total hardness: Maximum, 520 parts per million Jan. 11-13; minimum, -110 parts per million Jan. 

Water temperatures: Maximum, 90° F July 2; minimum, freezini - - -

REMARKS. No discharge records available for this station.

g point Jan. 29. 

Records of specific conductance of dai

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 2-4, 9, 1948 

Nov. 21-24, 28-29 

Nov. 25-27, 30 

Jan. 1-3, 6-10, 1949

Feh 91 .2R.-.- 

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

8.1 

8.4

Specific 

conductance 

(micromhos at 

25° C)

2,030 

2,200 

2,220 

2,300

2,020 

1,100 

2,150 

2,220 

1,870

1,370 

1,730 

1,770 

2,410

2,540 

1,810 

2,670 

391 

461 

910

1,190 

713 

474

BSR

Silica 

(Si08)

3.0 

15

Iron 

(Fe)

0.00 

.00

Calcium 

(Ca)

92 

95 

93 

93

104 

65 

126 

119 

98

92 

130 

121 

132

141 

113 

146 

33 

40 

63

83 

55 

40 

40

Magnesium 

(Mg)

26 

29 

30 

29

25 

15 

32 

31 

25

26 

35 

38 

38

39 

29 

38 

6.7 

6.5 

13

18 

11 

9.6

O.R

Sodium 

(Na)

P6- 

tassium 

(K)

334 

365 

361 1 11 

368

313 

157 

319 1 14 

350 

299

265 

313 

333 

368

362 

242 

388 

37 

51 

111

152 

79 

40 

7d

Bicarbonate 

(HCO,)

186 

185 

180 

186

224 

150 

1/251 

246 

225

196 

259 

221 

2/243

2/243 

239 

1/255 

94 

106 

149

37197 

134 

108 

130

Sulfate 

(S04)

195 

212 

215 

205

178 

84 

212 

231 

170

199 

272 

319 

349

283 

228 

216 

26 

85 

80

105 

57 

36 

B7

Chl

rid

(Cl

5

5

5

5

4

2

4

5

4

3

4

4

5

5

3

6

2

i

I/Includes equivalent of 7 parts per million of carbonate (CO,). 

2/Includes equivalent of 14 parts per million of carbonate (CO,). 

I/I .ludes equivalent of 6 parts per million of carbonate (CO,).
Mar. 1-4 

Mar. 5-10- 

Mar. 11-20- 

Mar. 21-31-

Apr. 1-10 - 

Apr. 11-13 

Apr. 14-20 

Apr. 21-27 

Apr. 28-30

May 2-3, 8 

May 4-7, 0-10 

May 11-14 

May 15-20 

May 21-28 

May 29-31 

June 1-10 

June 11-20- 

Jime 21-24- 

June 26-30-

July 1-7 ~

July 8-10 -

July 11-18

July 17-20

July 21-22, 30-31 I

July 23-29

789

1,350

1,670

1,680

1,600

850

1,600

1,770

866

717

1,020

1,010

546

502

781

741

910

1,200

1,620

1,810

649

968

1,450

1,450

1,890

_

--

..

--_

--

--

--~

..

--

--

--

80

96 

119 

111

110 

61 

102 

88

58

51

66

59

48

44

59

48

63 

89 

116

110

49

61

86

82

102

14

24 

30 

28

25 

13 

23 

40

19

11

16

14

9.8

7.9

13

11

16 

26 

36

38

11

18

26

25

35

93

171 

210 

221

204 

102 

221 

227

94

64

12A

134

5,n

48

97

90

106 

150 

196

226

«

8.4

4

111

If

5

179

246

152

227 

£/262 

240

252 

142 

237 

37185

143

141

167

162

144

137

163

151

169 

2/208 

223

197

124

141

173

164

182

99

183 

225 

212

186 

81 

174 

202

91

63

102

87

41

36

88

71

166 

241 

344

382

79

152

238

212

319

1

2

3

3

2

1

3

3

1

1

1

1

1

1

1

2

2

1

2

2

3

3/Includes equivalent of 6 parts per million of carbonate (CO,). 

4/lncludes equivalent of 11 parts per million of carbonate (CO3).
LOWER MISSISSIPPI RIVER BASIN

. 5

S a

5 R

S! B

« S

no 5 .

I I

& §

CO «* W,

Hi"

il

Jllj

O OOO rt

S

o* ^coco0>eamt*oo 

 * COC0a»lflOCOCO^<

S

« O t* 35 i

-1* o> 35 o> -^ t- <

« S

UUUtutbA 'S.'S.'S.'S.'S.'S.'S.'S.

3 js 3 3 3 5*5" & &&& W 9

^!^!^!^!<! D9CaD9D3D9D3CQD9
Temperature (° F ) of water, water year October 1

Day

|

9ft

21

22

25

28

31 . ........

October

65

flR

68

EC

65

November

66

54

54

56

54

53

51

December

42

40

39

39

Aft

49

AQ

AQ

07

January

36

49

35

43

33

39

07

on

February

34

QQ

QQ

07

QQ

QQ

QQ

March

39

50

55

52

56
ARKANSAS RIVER BASIN--Continued 

ARKANSAS RIVER AT SAND SPRINGS BRIDGE NEAR TULS

LOCATION. At bridge at Sand Springs, Tulsa County, on U. S. Highway 64, 10 miles upstream from ga

DRAINAGE AREA. 74,700 square miles above gaging station.

RECORDS. AVAILABLE. Chemical analyses: October 1946 to September 1949.

Water temperatures: October 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 3,230 parts per million Dec. 1-10; minimum, 442 pa

Total hardness: Maximum, 690 parts per million Dec. 21-31; minimum, 146 parts per million May 2

Water temperatures: Maximum, 88°F July 4-5; minimum, freezing point Feb. 21-22. 

EXTREMES, 1946-49. Dissolved solids: Maximum, 5,360 parts per million Oct. 12-17, 1946; minimum, 

Total hardness: Maximum, 1,280 parts per million Oct. 11, 1946; minimum, 106 parts per million 

Water temperatures: Maximum, 96 F Aug. 7, 1947; minimum, freezing point on several days in wint

REMARKS.--Discharge records for gaging station at Tulsa for water year October 1948 to September 1

specific conductance of daily samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Dec. 1-10 

Dec. 11-20 ~ 

Dec. 21-31 

Jan. 1-10, 1949 

Feb. 1-7, 9-10 

Feb. 11-20 - 

Feb 21 22

Feb 23 28

Mar. 11-20 ... 

Mar. 21-31 

Mean 

discharge 

(secondfeet)

2,137 

1,586 

1,375 

7,832 

3,350 

2,503

5,295 

3,041 

2,321 

2,560

2 

QI e

16,860 

27, 400 

45,220 

37,250 

20,900 

22,800 

8,800 

7,265

PH

8.1 

8.2 

8.2

--

Specific 

conductance 

(micromhos at 

25° C )

4,000 

4,110 

4,120 

4,110 

3,910 

4,300

5,340 

5,100 

4,800 

4,830

1,320 

2,500 

1,400 

1,280 

2,010 

2,630 

2,870 

2,960

Silica 

(SiQ.)

6.0 

4.0 

7.0

--

Iron 

(Fe)

0.00 

.00 

.00

Calcium 

(Ca)

155 

158 

160 

166 

173 

166

153 

170 

191 

186 

184

52 

74 

54 

54 

83 

96 

128 

134

Magnesium 

(Mg)

45 

43 

46 

39 

42 

41

51 

51 

52 

53 

50

12 

14 

12 

12 

19 

26 

33 

36

Softi^im

(Na)

670

688 

( 

691 

C

i,c

£ 

£ 

£ 

t

2 

4 

2 

2

a

4 

4 

4

Potassium 

(K)

14 

93 

16 

42 

13 

67

00 

60 

53 

76 

91

19 

23 

32 

06 

30 

47 

72 

63

Carbonate 

(CO,)

16 

33 

7 

13

10 

18 

10

Bicarbonate 

(HCO,)

181 

174 

177 

236 

232 

229

90 

175, 

249 

255 

259

106 

153 

113 

111 

146 

166 

238 

243

Sulfate 

(SO.)

191 

195 

189 

225 

208 

223

259 

304 

321 

315 

327

70 

96 

76 

77 

128 

168 

220 

225

Ch

rid

(C

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,
Apr. 1, 5-10 

Apr. 2-4 

Apr. 11-12, 17-20 

Apr. 13-16 

Apr. 26-30 

MSLV 1 2 9-10

May 11-12, 14-15, 17-19

May 21, 23, 30-31 

May 22, 24, 26, 29 

May 25, 27-28 

June 1-7, 10 

June 14, 16-20 

July 1, 6, 8 

July 2-5, 9 

July 12-13, 15-17 

July 14, 18-20 

July 21-22, 24-28 

July 23, 29-31 

9,859 

24,200 

6,598 

9,810

4 

OR 9

6,132

25,410

68,250 

74, 120 

60, 270

28,450

30,620 

22 320

in dan

8,843 

8,950 9 Q9.fi

12,700 

10,320 

5,726 

5,412

"

---

--"~"

1,960

1,210

2,270

1,410

2,780

2,170

3,030

2,280

1,250

2,230

2,980

1,440

1,670

1,190

771

1,500

2,400

2,570

1,980

1,840

2,350

3,310

2,310

1,680

1,660

2,360

2,820

3,000

2,360

..

--_

--

102

68

118

84

117

104

106

93

63

84

118

45

76

70

52

80

108

97

92

100

130

148

124

87

88

114

118

120

92

25

16

30

20

45

51

28

22

14

21

27

8.3

16

13

9.5

17

23

23

23

25

35

40

35

22

27

29

33

31

20

289

165

343

188

417

266

501

352

178

336

467

240

261

166

95

222

379

415

290

257

327

544

335

241

216 

345

430

459

365

--

--

--

-_

--

19

--

--

..

--

--7

12858

._

--

207

153

232

182

205

195

174

156

144

155

168

117

140

144

129

158

144

165

158

187

203

200

185

152

145

153

162

170

114

177

99

201

117

224

157

222

158

102

177

221

66

141

110

73

142

207

212

196

225

290

321

295

176

177

230

263

234

196
ARKANSAS RIVER BASIN Continued

ARKANSAS RIVER AT SAND SPRINGS BRIDGE NEAR TULSA, OKLA. 

Chemical analyses, in parts per million, water year October 1948 to Septembe

Date of collection

Aug. 11, 13, 20 

Aug. 12, 14-15 

Sept. 1-5, 8 

Sept. 6, 9-10 

Sept. 7 

Sept. 11-12,16-17,19-20

Mean 

dig. 

charge 

(secondfeet)

6,761 

4,100 

4,783 

5,220

5,513 

14,470 

16,400 

13,640 

13,980 

7,154

PH

7.6

8.5

Specific 

conductance 

(micromhos at 

25* C )

2,970 

3,190 

2,150 

2,790 

3,550 

3,690 

2,830 

1,570 

2,380 

1,780 

2,750

Silica 

(310,)

1.0 

15

Iron 

(Fe)

.00 

.05

Calcium 

(Ca)

132 

128 

91 

110 

137 

132 

103 

70 

106 

86 

124

Magnes him 

(Mg)

22 

36 

27 

31 

39. 

38 

25 

18 

25 

19 

30

Sodium 

(Na)

Potassium 

(K)

456 12 

506 

318 

436 

548 

606 

455 

227 

364 

254 

425 35

Carbonate 

(CO,)

::

Bicarbonate 

(HCO.)

194 

181 

138 

158 

176 

160 

125 

114 

1S3 

144 

179

Sulfate 

(SO,)

260 

236 

160 

201 

239 

247 

191 

135 

203 

152 

221

Chlo

ride 

(Cl)

7

8

5

7

9

1,00

74

, 36

5

40

68
Temperature (* F ) of water, water year October 1

Day

1 

19 _

91

29

October

67

on

on

Aft

on

on

AA

A7

AQ

November

58

59

52

48

44

An

QO

QQ

39

December

47

Eft

47

January

49

44

February

45

52

an

32

QQ

March

51

A9

58

59

54

57

A
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT BIXBY, OKLA.

LOCATION. At bridge on U. S. Highway 64, two miles north of Bixby, Tulsa County. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperature: October 1948 to September 1949. 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 3,090 parts per million Dec. 1-3, 10; minimum, 47

Total hardness: Maximum, 648 parts per million Jan. 11-15, 17; minimum, 162 parts per million 

Water temperatures: Maximum, 91° F July 2, Aug. 16-17; minimum, 42° F Mar. 1-2, 17. 

REMARKS. No discharge records available for this station. Records of specific conductance of da

Chemical analyses, in parts per million,-water year October 1948 to S

Date of collection

Oct. 1-8, 1948 

Jan. 1-10, 1949 

Jan. 11-15, 17 

Jan. 16, 18, 20 

.Ton 9.K-S1 _ _ ..

Mean 

discharge 

(secondfeet)

Temperature

PH

7.8 

7.9

Specific 

conductance 

(micromhos at 

25* C)

2,980 

3,240 

3,620 

3,900

3,860 

1,930 

2,710 

3,180 

4,090 

3,930

4,610 

3,220 

3,820 

4,450

4,360 

4,210 

2,480 

1,330 

2,430 

1 4nn

Silica 

(SiO.)

6.0 

9.0

Iron 

(Fe)

0.00 

.00

Calcium 

(Ca)

118 

134 

155 

156

154 

89 

124 

140 

156 

164

172 

124 

164 

174

173 

176 

103 

66 

72 

47

Magnesium 

(Mg)

35 

37 

46 

44

47 

23 

31 

37 

44 

41

50 

32 

46 

48

49 

51 

26 

14 

19 

11

S°- 1°' 

dium 

(Naj slum

469 

511 

568 

641 15

636 

288 

419 

503 

693 

645 13

913 

535 

746 

755

677 

674 

388 

187 

425 

231

Bicarbonate 

(HCO,)

179 

177 

185 

185

188 

138 

151 

182 

215 

235

212 

172 

237 

251

247 

213 

173 

132 

103 

95

Sutfate 

(S04)

181 

195 

211 

184

190 

127 

208 

222 

251 

227

437 

191 

277 

303

314 

219 

114 

64 

76 

59

Chl

rid

(C

7

1,0

1,1

1,1

4

7

1,1

1,0

1,4

1,2

1,2

1,1

1,2
Feb. 1-3, 7, 10 

Feb. 4-6, 8-9 

Feb. 11-12, 15,

17-20 

Feb. 13-14, 16 

Feb. 21-24 

Feb. 25-26 

Mar. 1-2, 4-6 

Mar. 3, 7-10 

Mar. 11-20 

Mar. 21-31 

Apr. 1-2, 8-9 

Apr. 3-7, 10 

Apr. 11, 15-17 

Apr. 12-14, 18-20- 

Apr. 21-30 

May 1, 6-9 

May 2 

May 3-5, 10 

May 11-17 

May 18-20 

May 21, 23-24, 26, 

28-31 

May 22, 25, 27 

._

..

..~__

.._

--

1,690

2,470

1,230

1,590

1,100

1,590

1,360

2,310

2,610

2,670

2,420

1,750

1,940

2,560

2,880

1,900

1,090

3,640

2,370

1,340

1,260

838

.."_

.._

..

.._"~

.._

--

..

__

.._

..

..

--

65

82

54

56

54

68

66

92

127

130

110

80

90

118

122

86

53

108

103

54

68

57

15

21

10

11

9.6

16

16

22

33

34

49

20

24

32

37

21

14

29

26

12

14

10

275

412

189

258

160

237

203

394

402

403

327

256

293

402

460

2«6

145

628

363

202

177

105

118

129

116

108

107

133

138

172

235

239

198

148

171

222

205

154

105

158

152

117

132

132

84

94

69

70

69

102

100

165

217

216

182

129

146

211

223

118

65

223

198

67

113

73

45

69

29

41

25

37

32

61

64

65

59

41

47

63

74

46

24

98

58

32

27

15
LOWER MISSISSIPPI RIVER BASIN

 o -w

S §

 S V W I § J

v 3

ilsl

C 9 a) ly g s rt

is 3

H

| . 

S * M a o

i e ~

i S~*

S l§

l|sr

in

j. »-*

3Sg

II 8"

ass

Sll^.

ui

»iS«

S "S

- a-ao-sH

11

rt "^j

aa

IJsjg"

I! s l1s

S

H S.-^?^

liiii

of collection e 

"8 

Q

eo CM o> in o c«3 TP «* oa <D CM o» co o» r*

to to to to to to to to to to t- to to to tsssss sssss SSS58

8Sg£2 SSSS? SgSSS

CO CM § r-l r-l CO CO CM in t- Tp CO t- « CO

o ift o o o o o o ift o o o ift m ift

ift .* tt> « * * «*« co tt> ift <Ott>Min-«r

I!!!! i ! ! ! i ! i ! ! !

OS CO O OS t- CO r-t OS T-I^CO CM CM CO * Ift

M S S M § CO 0> in £? CO OoS ^ * S

ift a> CD « o co ift co r-i t- «o<Hootrm

CflScflScM ^^CMNCO MC5<WCM«

g^gcog «^go« »g»go

! I i i I ! I ! ! ! i ! ! ! !

I!!!! ! ! ! ! ! ! ! ! ! !

OOOOQ O4*OOO OOOOO

: : : i : : : : : : : : : ; :

S " ' ' t-~<»

uJ, .""« "-'« e»S*?*"l"?

Hill

t-CDCDr-CDCDCDCD

sss^gssg

Olr-lCMOOlt-COCM 

OlOlt-CDCMOCOtlilSSSIS

mmooomoift

t-H>inCMtt)CM

::::::::

oooogogin

SSS3SSS5!

SSSSSSSK

inn*-<.«Ne5mc*

 * C«3 O> n * O »-< r-('

! ! ! I ! I ! I

i i ; : i : : :

::::::;!

00 O

O J* ^ CM J^

to *"* os i i - i

t

*j -M -y -y -M -y *» ffffl'l'fl1 en m m m m m m
Temperature (" F ) of water, water year October 19

Day

1 

1 ^

1 Q

22

oc

97

on

October

75

73

69

79

73

November

70

59

52

co

44

59

December

64

January

58

on

50

52

52

52

February

56

59

59

59

54

EQ

59

59

59

44

March

42

52

48

en

59

59

A
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT WEBBER FALLS, OKLA.

LOCATION. At bridge on U. S. Highway 64 in Webber Falls, Muskogee County. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,460 parts per million Dec. 21-22, 28-29; minimum

Total hardness: Maximum, 471 parts per million Dec. 21-22, 28-29; minimum, 128 parts per millio

Water temperatures: Maximum, 83* F July 3-4, 8; minimum, freezing point Jan. 20. 

REMARKS. No discharge records available for this station. Records of specific conductance of da

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1, 5-6, 1948 

Oct. 2-3, 9-10 -----

Oct. 11-13, 19-20 

Oct. 21, 26-27 

Oct. 22-25, 28-31 

Nov. 4-5, 8-10 

Nov. 11-14, 18 

Nov. 16-17, 19-20 

Nov. 21-22, 25-29 

Nor. 23-24, 30 

FW»/» 9 7 1fi

Dec. 11-13, 17-20 

Dec. 21-22, 28-29 

Dec. 23-27, 30-31 

Mean 

discharge 

(secondfeet)

Temperature

(°F)

pH

Specific 

conductance 

(micromhos at 

25-0

1,710 

1,420 

1,220 

1,620 

1,220 

1,650 

1,510

1,600 

1,280 

2,520 

1,270 

1,850 

1,540 

2,040

2,250 

1,670 

1,790 

2,400 

2,460 

1,760

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

74 

66 

63 

80 

64 

78 

65

74 

70 

114 

67 

86 

77 

94

108 

84 

85 

101 

108 

87

Magnesium 

(Mg)

20 

17 

15 

19 

15 

19 

15

17 

15 

29 

15 

19 

16 

21

25 

20 

21 

23 

49 

19

Sodium 

(Na)

Potassium 

(K)

292 

222 

193 

254 

184 

268 

193

256 

193 

377 

193 

292 

229 

322

352 

233 

268 

389 

372 

279

Bicarbonate 

(HCO,)

144 

131 

130 

152 

'136 

146 

132

143 

153 

176 

126 

155 

154 

172

169 

151 

164 

172 

192 

170

Sulfate 

(SOJ

98 

81 

76 

87 

69 

83 

65

76 

75 

133 

90 

118 

90 

115

124 

103 

116 

147 

167 

119

Ch

rid

(C
Jan. 1-3, 6-10

Jan. 4-5 

Jan. 11-12 

Jan. 13-14, 19 

Jan. 15-18, 20 

Jan. 21-25 

Jan. 26-31 

Feb. 1-5 

Feb. 6-10 

Feb. 11-15 

Feb. 16-20 

Feb. 21-25 

Feb. 26-28 

Mar. 1, 4-10-

Mar. 2-3 

Mar. 11-20 

Mar. 21-31 

Apr. 1-4 

Apr. 5-10 

Apr. 11, 15-16 

Apr. 12-14, 17-20 

Apr. 21-30 

Hay 1, 3-4, 9-10 

May 2, 5-8 

Hay 11, 18-20 

Hay 12-17 

Hay 21-22, 24-25 

Hay 23, 26-31 

I/Includes equivalent of 6 parts per million of carbonate (CO,).

2/Includes equivalent of 7 parts per million of carbonate (CO.).

3/Includes equivalent of 11 parts per million of carbonate (CO,)

8.4

1,720

2,420

2,340

1,630

1,320

1,200

750

794

1,210

820

627

584

930

1,160

839

1,610

1,430

1,480

1,040

1,600

1,250

1,670

1,100

1,760

1,170

1,750

825

616

14 0.00

84

115

112

82

72

51

38

48

59

44

40

45

53

62

57

88

83

83

62

90

72

88

60

78

59

81

48

47

19

27

27

19

16

11

8.0

9.4

12

9.6

8.7

7.8

10

14

12

20

18

20

14

24

17

23

13

19

14

19

8.7

8.2

253

365

362

235

185

187

107

104

174

109

75

76

130

170

103

223

192

205

137

224

161

239

150

257

167

260

121

78

1/187

2/200

2/194

150

150

105

92

108

120

105

99

116

116

134

140

2/184

172

176

137

184

158

176

141

152

122

156

116

118

117

165

177

92

76

51

35

55

69

53

41

47

71

76

75

130

116

121

86

135

93

132

77

110

91

149

63

61

410

605

590

405

315

310

175

168

285

172

122

116

202

275

155

340

305

325

215

365

262

390

235

415

260

395

180

110
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT WEBBER FALIS, OKLA.--Continued 

Chemical analyses, in parts per million, water year October 1948 to Septembe

Date of collection

June 1-10, 1949 

June 11-13, 16-17 

June 14-15, 18-20 

July 1-2, 6, 9-10 -

Aug. 1-3, 6-10 

Aug. 11-16, 18-19 

Aug. 21-23, 26, 29 - 

Aug. 24-25, 27-28,

Sept. 11-12, 18-19 

Sept. 16-17, 20 

Sept. 27-30 ...

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

Specific 

conductance 

(micromhos at 

25* C)

1,010 

921 

1,360 

1,300

1,220 

1,720 

1,570 

679 

953 

1,660 

1,340

1,460 

2,260 

1,320 

1,800 

1,580

1,900

1,760 

2,260 

877 

1,040 

2,090 

1,730 

1,710 

923 

1,180

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

62 

52 

72 

79

77 

102 

80 

43 

60 

84 

77

73 

98 

74 

88 

80

90

80 

94 

51 

54 

88 

80 

81 

58 

75

Magnesium 

(Mg)

13 

11 

15 

19

18 

27 

20 

9.6 

19 

19 

17

17 

24 

16 

21 

20

24

22 

28 

11 

14 

22 

19 

19 

12 

16

Sodium 

(Na)

Potassium 

(K)

119 

115 

185 

178

160 

234 

212 

77 

97 

222 

168

196 

330 

178 

259 

216

267

256 

340 

107 

130 

316 

247 

247 

111 

142

Bicarbonate 

(HCO,)

130 

121 

144 

164

148 

189 

136 

100 

116 

142 

159

146 

155 

148 

158 

158

161

136 

148 

120 

110 

126 

134 

136 

128 

162

Sulfate 

(S04)

97 

80 

136 

170

147 

209 

142 

60 

82 

152 

130

120 

174 

115 

154 

122

129

119 

157 

59 

77 

180 

154 

154 

79 

100

Chloride 

(Cl)

180 

170 

270 

245

240 

355 

340 

118 

182 

350 

255

305 

530 

280 

410 

350

450

430 

565 

172 

215 

500 

385 

385 

175 

230
Temperature (° F ) of water, water year October 194

Day

3 . . 

9

19

14 . __

no

25

28

no

October

69 

70 

69 

68 

69

67 

62 

61

63 

62 

65 

65

68 

56 

55 

58 

57

58 

58 

59 

58 

59

57 

59 

59 

60 

63 

64

62

November

65 

64 

62 

64 

59

57 

54 

53 

50 

49

49 

59 

58 

50

54 

53 

58 

48 

46

45 

44 

45 

45 

47

48 

48 

47 

44 

43

52

December

43 

44 

45 

46 

45

43 

41 

41 

40 

39

43 

41 

49 

56 

59

51 

49 

48 

44 

44

44 

44 

42 

40 

39

38 

37 

43 

38 

36 

37

44

January

38 

40 

48 

40 

50

40 

43 

50 

45 

41

40 

37 

38 

42 

50

45 

37 

38 

33 

32

36 

37 

40 

38 

35

34 

34 

33 

33 

33 

33

39

February

34 

33 

35 

37 

39

39 

38 

40 

40 

40

43 

43 

42 

39 

40

40 

40 

42 

43 

45

46 

44 

44 

45 

46

47 

46 

46

41

March

44 

45 

45 

48 

51

52 

52 

52 

48 

44

44 

45 

45 

45 

44

43 

45 

42 

42 

44

50 

49 

51 

52 

52

58 

53 

54 

55 

59 

54

49

Ap
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT VAN BUHEN, ARK.

LOCATION. At gaging station at bridge on U. S. Highway 64 at Van Buren, Crawford County, li miles d

DRAINAGE AREA. 150,218 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1949.

Water temperature: October 1945 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,560 parts per million Dec. 7-8; minimum, 241 parts 

Total hardness: Maximum, 355 parts per million Sept. 15-16, 18-19; minimum, 70 parts per million 

Water temperatures: Maximum, 85° F July 3, 9-10, 12-13, 22, 29, Aug. 8, 19; minimum, 33° F Jan. 

EXTREMES, 1945-49. Dissolved solids: Maximum, 1,610 parts per million Oct. 21-24, 1946; minimum, 2

Total hardness: Maximum, 359 parts per million Dec. 21-31, 1946; minimum, 70 parts per million Ja

Water temperatures: Maximum, 87° F Aug. 1, 1946; minimum, freezing point Jan. 30, 1947.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply P

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Oct. 1-3, 1948 

Oct 4 9

Oct 25 28

rv** 90 41

Nov. 21-25, 28-30 -

Dec. 1, 3, 6, 9-10 - 

Dec 245

Dec. 11-13, 18-20 -

Dec. 21, 26-27, 30- 

Dec. 22-25, 31 

IV»r OR-00 ... -----

Mean 

discharge 

(secondfeet)

7,623 

6,610 

5,920 

5,620 

6, 222 

5,742 

5,482 

5,910

12,850 

10, 540 

7,945 

6,821 

7,130

8,958 

8,597 

10, 080 

10,500 

11,060 

8,552 

8,146 

 7 ian

Temperature 

(°F)

Color

5 

6 

7 

6 

6 

6 

6 

6

12 

15 

10 

17 

10

8 

9 

9 

10 

13 

9 

9

R

Specific 

conductance 

(micromhos at 

25* C)

2,140 

,600 

,400 

,580 

,320 

,580 

,370 

,610

,430 

,300 

,840 

,870 

2,320

2,240 

1,950 

2,880 

1,880 

2,210 

2,270 

2,520 

9. nsn

Silica 

(310.)

Iron 

(Fe)

Calcium 

(Ca)

76 

72 

68 

78 

68 

68 

59 

76

67 

64 

87 

85 

97

94 

82 

100 

72 

86 

88 

88 

Rfi

Magnesium 

(Mg)

21 

17 

16 

19 

16 

14 

16 

19

14 

12 

19 

18 

23

22 

22 

25 

21 

25 

25 

26

9S

s°- u°;

dium tos 

/N v slum 

(Na) (K)

344 

240 

208 

221 

182 

246 

205 

230

212 

194 

274 

285 

354

337 

283 

461 

285 

327 

343 

394

2aa

Bicarbonate 

(HCO,)

1/158 

156 

156 

1/167 

154 

2/163 

T/151 

1/160

144 

124 

156 

165 

181

170 

166 

162 

140 

148 

161 

165 

IfiO

Sulfate 

(SOJ

105 

83 

79 

75 

64 

72 

65 

73

68 

88 

111 

93 

112

105 

94 

116 

93 

110 

101 

107 

aa

Chloride 

(Cl)

555 

392 

337 

380 

310 

390 

330 

395

350 

308 

458 

475 

595

572 

478 

778 

475 

560 

588 

662 

510

I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 7 parts per million of carbonate (CO,).

^/Includes equivalent of 9 pa
Jan. 2-6, 9-10 

Jan. 11, 15-16 -

 fifth 1 B

ffth Q-19

Mar 27 31

Apr. 4-5, 9-10 

Apr. 11-12, 15-16,

Apr. 13-14, 17-18 

Apr 21 28

Aor. 2R-sn 

8,630 

7,820 

9,207 

9,263 

26, 620 

51,820 

13,020 

110,300

57,880 

102, 000 

163, 000 

119,000 

67, 620 

42, 960 

31, 930 

49, 870 

70,400

43, 470 

44, 600

39,430 

51,720 

20, 660 

2S 450

7 

8 

8 

5 

23 

22 

12 

22

15 

22 

14 

29 

15 

14 

10 

28 

11

9 8

17 

17 

9 

fl

2,260 

1,810 

1,640 

2,360 

1,100 

966 

597 

341

414 

1,000 

535 

518 

1,140 

958 

1,550 

912 

660

812 

1,090

900 

1,130 

1,140 

OKR

94

76

76

100

52

50

29

19

27

52

34

34

62

45

78

44

34

47

62

52

60

63

48

23

20

18

24

13

10

6.6

5.6

5.0

9.0

5.8

6.2

17

13

21

13

11

11

15

12

16

16

13

346

270

235

364

148

129

82

40

49

147

65

62

152

138

220

132

86

102

142

110

150

152

147

1/170

151

145

178

105

113

71

50

69

105

86

84

132

117

164

101

96

110

129

111

122

138

99

121

93

86

137

50

41

23

18

26

57

32

40

75

63

102

63

44

63

78

58

71

76

88

4/Includes equivalent of 11 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued

ARKANSAS RIVER AT VAN BUREN, ARK. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

May 1, 7-8, 10, 1949 

Ma.v 239

Uav 11 19

May 20, 23-28 

Mav 29 31

June 1-3, 5, 9 

June 4, 6-8, 10 

June 11-12, 19-20 

July 11, 13-18 

July 12, 19, 21 - 

July 20, 22-28 

Tulv QQ 41

Aug. 3-5, 8-9 

Aug. 22-26, 31 

Aue. 27-30 

Mean 

discharge 

(secondfeet)

56, 620 

112,000 

85,000 

57, 150 

54, 310 

223, 100 

313,000 

158,700

94,600 

83,000 

107,000 

148, 000 

49, 180

35,400 

29,470 

26,400 

54,110 

42,030 

22, 910 

22, 930

15, 930 

18, 180 

20,500 

12,290 

11,820 

8,522

7. S7S

Ternperature 

<°F)

Color

18 

18 

37 

18 

12 

19 

10 

22

9 

9 

9 

12 

9

7 

6 

7 

9 

8 

6 

7

7 

6 

7 

6 

5 

5

R

Specific 

conductance 

(micromhos at 

25' C)

927 

830 

630 

922 

1,240 

675 

845 

498

. 697 

861 

882 

620 

1,040

1,060 

1,230 

1,340 

645 

1,110 

1,400 

1,080

1,140 

1,310 

1,780 

1,360 

1,650 

1,670 

2 lift

Silica 

(310.)

Iron 

(Fe)

Calcium 

(Ca)

46 

46 

38 

52 

68 

49 

59 

40

50 

58 

53 

41 

66

66 

72 

82 

42 

60 

72 

64

76 

75 

96 

79 

88 

82

Q4

Magnesium 

(Mg)

8.7 

8.2 

6.9 

9.2 

12 

7.1 

6.8 

6.6

11 

12 

12

8.5 

15

14 

16 

19 

7.9 

14 

16 

13

15 

16 

19 

17 

21 

20

94

Sodium 

(Na)

Potassium 

(K)

129 

108 

76 

119 

165 

79 

107 

53

82 

108 

113 

77 

138

131 

169 

184 

74 

145 

209 

142

141 

178 

262 

182 

233 

250 

SSO

Bicarbonate 

(HCO.)

101 

103 

85 

111 

134 

120 

154 

105

119 

130 

118 

102 

150

2/147 

147 

2/160 

102 

118 

142 

1/150

147 

147 

166 

150 

154 

149

153

Sulfate 

(SOJ

56 

46 

34 

59 

97 

59 

56 

47

68 

74 

76 

49 

123

106 

132 

146 

50 

87 

122 

90

93 

97 

140 

98 

122 

103

110

Chlo

ride 

(Cl)

20

17

12

19

25

11

15

7

12

17

17

1

19

19

25

28

1

23

32

2

24

29

42

30

39

42

SB

.I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 7 parts per million of carbonate (CO,).
flAnf Q in

Sept. 11, 14, 17, 20

Sept. 15-16, 18-19 - 

Sept. 21, 23-24, 29 

Sept. 22, 25-28, 30

Weighted average -

12,420 

23,000

25,300 

2,452 

18,670

45, 180

10

10 

10 5

--

1,610

QR1

2,290 

1,210 

1,080

 874

on

78

106 

67 

66

50

9ft

17

' 22 

13 

12

11

238 

124

349 

169 

142

116

121

119 

121 

126

112

112

96

124 

88 

82

63
ARKANSAS RIVER BASIN Continue

ARKANSAS RIVER AT VAN BUREN, ARK.--C

Temperature (° F ) of water, water year October 1948 

Day

g

1 9

ifl

23

QO

29

31

October

CQ

November

AS

December

no

no

January

00

February March Ap
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT DARDANELLE, ARK.

LOCATION. At gaging station 09 State Highway 7 at Dardanelle, Yell County, 5 miles downstream fr

DRAINAGE AREA. 153,442 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,320 parts per million Dec. 11-13; minimum, 220 

Total hardness: Maximum, 350 parts per million Sept. 1-3; minimum, 62 parts per million Jan. 2

Water temperatures: Maximum, 89° F Aug. 17; minimum, freezing point Jan. 30.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Oct. 1-3, 8-10, 1948

Oct. 12-14, 19-20 

Dec. 1, 5-7, 9-10 

Mean 

discharge 

(secondfeet)

6,715 

7,422 

6,120 

6,238 

5,740 

5,813

6,463 

18,540 

12, 300 

10,530 

7,580

9,433 

8,175 

9,900 

12, 950 

16,830 

21,750 

12,030 

12,020 

16,030

Color

12 

12 

10 

8 

10 

12

5 

5 

10 

10 

5

5 

10 

10 

5 

10 

28 

5 

5 

15

PH

Specific 

conductance 

(micromhos at 

25* C)

1,620 

2,020 

1,430 

1,650 

1,530 

1,340

1,410 

1,760 

1,560 

1,260 

1,790

2,170 

1,790 

2,440 

1,880 

1,450 

870 

1,420 

1,730 

1,040

Silica 

(SiO.)

6.5 

4.5 

3.5 

7.5 

7.0 

7.5

8.5 

6.0 

9.0 

8.5 

8.0

8,0 

10' 

8.0 

7.0 

5.0

2.0 

2.0 

4.0

Iron

(Fe)

0.07 

.06 

.'08 

.09 

.06 

.08

.06 

.04 

.01 

.04 

.04

.04 

.06 

.03 

.04 

.10

.20 

.04 

.10

Calcium 

(Ca)

65 

80 

68 

67 

63 

55

67 

74 

72 

59 

86

80 

78 

88 

59 

56 

32 

60 

70 

40

Magnesium 

(Mg)

19 

21 

18 

20 

20 

18

16 

20 

17 

14 

19

22 

19 

22 

18 

14 

8.3 

15 

17 

10

Sodium

(Na)

241 

305 

204 

251 

226 

192

183 

250 

215 

165 

254

319 

246 

375 

278 

206 

1' 

204 

263 

143

Potassium 

(K)

8.4 

8.2 

6.6 

7.0 

7.6 

8.0

9.0 

20 

16, 

14N 

14

18 

21 

2.8 

4.4 

1.6 

8 

2.4 

4.0 

2.0

Bicarbonate 

(HCO,)

1/162 

2/162 

A/166

i/no

1/162 

1/166

156 

1/158 

3/1S2 

132 

1/167

175 

4/174 

V156 

126 

111 

78 

111 

1/122 

82

Sulfate 

(S0«)

79 

94 

68 

76 

68 

61

64 

79 

77 

74 

95

108 

85 

105 

83 

68 

71 

62 

68 

48

Ch

ri

(C

I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 10 parts per million of carbonate (CO,). 

J/Includes equivalent of 6 parts per million of carbonate (CO,). 

_4/Includes equivalent of 12 parts per million of carbonate (CO,). 

^/Includes equivalent of 16 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT DARDANELLE, ARK. Continu

Chemical analyses, In parts per million, water year October 1948 to Septe

Date of collection

Jan. 1, 5-8, 1949 

Tan 21 22

Mar. 3-5, 7-10 

May 1-3, 5-7, -

May 11-14, 20 

Mean 

discharge 

(secondfeet)

11,860 

11, 300 

12, 870 

11, 560 

33, 850 

65,800 

171,300 

170, 200

78,150 

69,250 

87, 000 

114, 300 

194, 500 

204, 200 

144,200

76, 100 

65, 860 

39, 800 

33, 680 

68,500 

90,370

60,320 

50,040 

49, 870 

24, 280 

23,250

89,250 

77, 750 

80, 900 

42,400 

265,000 

217, 100

Color

10 

5 

5 

5 

50 

10 

20 

40

10 

35 

15 

10 

10 

40 

25

22 

15 

10 

8 

14 

10

15 

15 

10 

10 

5

30 

15 

15 

15 

19 

15

PH

Specific 

conductance 

(micromhos at 

25" C)

1,150 

1,760 

1,380 

1,580 

515 

902 

316 

499

365 

446 

754 

1,050 

376 

499 

476

575 

821 

1,150 

1,400 

911 

582

688 

803 

957 

897 

1,050

617 

868 

840 

1,150 

881 

611

Silica 

(310,)

5.0 

8.0 

6.0 

9.0 

11 

8.9 

7.4 

8.6

8.0 

7.9 

8.8 

9.5 

6.8 

7.4 

8.6

8.3 

9.9 

11 

11 

9.2 

8.2

10 

8.5 

9.7 

9.3 

8.4

8.9 

10 

11 

12

11

Iron 

(Fe)

.08 

.10 

.06 

.04 

.25 

.03 

.67 

.77

.38 

.23 

.06 

.04 

.45 

.20 

.28

.06 

.06 

.08 

.10 

.05 

.08

.03 

.02 

.03 

.02 

.08

.04 

.02 

.02 

.04

.06

Calcium 

(Ca)

50 

76 

55 

72 

23 

47 

19 

20

18 

31 

36 

49 

22 

32 

31

38 

48 

60 

73 

48 

31

42 

45 

53 

53 

59

35 

44 

42 

59 

48 

45

Magnesium 

(Mg)

13 

19 

16 

17 

6.0 

9.9 

3.6 

5.5

4.4 

5.7 

7.9 

9.0 

3.3 

5.8 

6.5

8.1 

10 

15 

18 

12 

9.3

8.6 

9.5 

11 

12 

12

7.5 

9.3 

9.4 

14 

7.2 

8.2

Sodium 

(Na)

154 

257 

185 

226 

61 

109 

35 

61

40 

46 

89 

140 

42 

58 

48

64 

100 

149 

190 

113 

63

82 

90 

115 

103 

128

65 

109 

99 

141

1 

66

Potassium 

(K)

4.0 

14 

33 

2.8 

1.2 

2.2 

1.1 

.9

.9 

1.9 

1.8 

2.2 

2.6 

1.2 

1.0

1.3 

1.4 

2.0 

3.2 

1.8 

1.0

2.3 

2.9 

4.0 

3.5 

4.0

1.8 

4.2 

4.5 

5.0 

18 

6.6

Bicarbonate 

(HCO,)

104 

136 

110 

134 

56 

118 

54 

66

64 

74 

88 

104 

70 

80 

84

98 

114 

1/135 

6/159 

108 

74

100 

1/104 

114 

130 

128

90 

104 

110 

7/126 

117 

116

Sulfate 

(30«)

61 

115 

83 

84 

25 

44 

15 

20

23 

30 

40 

46 

22 

27 

32

36 

54 

76 

88 

54 

33

49 

59 

58 

60 

67

30 

58 

53 

97 

50 

49

Ch

rid

(C

2

1/Inchides equivalent of 8 parts per million of carbonate (CO,). 

6/Includes equivalent of 9 parts per million of carbonate (CO,). 

7/Includes equivalent of 14 parts per million of carbonate (CO,).
June 1-3 

June 4-10 

June 11-13, 20 

June 14-19 

June 21-30 

July 1, 7-10 

July 2-6 

July 11-14^.20 

July 15-19 

July 21-25, 31 

July 26-30 

Aug. 1-5 

Aug. 6-7, 10 

Aug. 8-9 

Aug. 11, 14, 18-20 

Aug. 12-13, 15-17 

Aug. 21, 27-28 

Aug. 23-24 

Ang. 22, 25-26, 29 

Aug. 30-31 

Sept. 1-3 

Sept. 4-10 

Sept. 11-13, 17-20 

Sept. 14-16 

Sept. 21-30 

Weighted average

121,000

96, 000

136, 500

168,800

61,390

31,440

37,720

49,820

56,880

30,680

20,420

19,520

20,230

19,750

12,260

13,280

9,427

11,050

9,345

7,820

6,390

5,936

23,440

20,670

23,230

52,120

531

756

791

605

945

1,200

980

822

603

1,220

1,390

1,090

1,380

1,790

1,400

1,240

1,560

1,440

1,770

2,050

1,980

1,680

1,870

1,120

1,580

779

10

11

9.4

15

12

12

16

14

15

17

16

14

16

11

13

11

10

9.9

12

.04 

.03 

.05

.01 

.01 

.08 

.06 

.06 

.07

.07 

.07 

,06 

.06 

.08 

.08 

.10 

.08 

.07

.04

.04

.05

02

.04

6.6

11

11

8.3

13

17

15

11

8.5

15

17

16

17

22

18

16

21

20

23

23

30

24

27

14

19

147

112

95

62

160

186

131

164

267

185

159

214

192

242

299

301

245

279

149

3.5 

8.6 

6.9 

3.0

3.4 

3.2 

1.9 

1.4 

4.4 

4.8

2.8 

4.0 

5.0 

4.2 

3.0 

4.2 

3.2 

2.0 

6.2

10

8.8

6.4

5.9

6.0

3.5

110

120

112

100

132

155 

142 

108 

102 

134 

4/146

2/152

1/146

1/150

160

148

158

152

4/154

2/162

162

138

128

116

106

50

66

71

48

102

122

98

66

47

108

102

100

104

137

102

90

110

100

115

110

110

110

120

67

82

1

1

1

1

2

1

1

i

2

2

2

2

4

3

2

3

3

4

5

5

4

4

2

4

I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 10 parts per million of carbonate (CO,). 

4/Includes equivalent of 12 parts per million of carbonate (CO,). 

7/Includes equivalent of 14 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT DARDANELLE, ARK. C

Temperature (" F ) of water, water year October 1948 

D»y

2

Q

13

19

9O

verage

October

ftO

65

56

November December January

46

February March

46

Apr
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT LITTLE ROCK, ARK.

LOCATION. At gaging station at Missouri Pacific Railroad bridge at Little Rock, Pulaski County.

DRAINAGE AREA. 157,933 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1949.

Water temperatures: October 1945 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,260 parts per million Sept. 22-23; mininum, 191 

Total hardness: Maximum, 358 parts per million Sept. 22-23; minimum, 80 parts per million Jan. 

Water temperatures: Maximum, 88* F July 2, 13; minimum, 34° F Jan. 30-31. 

EXTREMES, 1945-49. Dissolved solids: Maximum, 1,730 parts per million Oct. 24-29, 1946; minimum

Total hardness: Maximum, 406 parts per million Aug. 3-5, 7, 1947; minimum, 48 parts per million 

Water temperatures: Maximum, 91° F Aug. 6, 9, 1947; minimum, freezing point Jan. 28, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-7, 1948 

Oct. 12-13, 17-19- 

Oct. 14-16, 20 

Oct. 21-27, 31 

Nov. 1-2, 7-8, 10--

Nov. 11, 15-20 -

Dec. 1-3, 7-8 

Dec. 9, 11-12 

Dec. 10, 13-15 

Dec. 21, 24-25 

Dec. 22-23, 26-31 -

Mean 

discharge 

(secondfeet)

8,217 

7,385 

6,828 

6,658 

6,660 

6,860

10,980 

9,098 

13, 760 

17,370 

10, 120 

8,836

9,270 

8,267 

11,400 

11,380 

42, 300 

41, 000 

23, 000 

22,610

Temperature 

<°F)

Color

12 

7 

8 

6 

5 

5

5 

5 

12 

9 

10 

8

8 

8 

9 

9 

22 

21 

23 

19

Specific 

conductance 

(micromhos at 

25° C)

1,580 

1,980 

1,600 

1,440 

1,440 

1,300

1,520 

1,260 

1,180 

1,660 

1,040 

1,530

1,560 

1,760 

1,820 

2,280 

865 

553 

879 

1,140

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

76 

86 

80 

80 

75 

66

72 

68 

58 

75 

56 

70

76 

82 

87 

92 

36 

24 

36 

42

Magnesium 

(Mg)

19 

22 

21 

20 

19 

17

19 

17 

16 

18 

13 

19

18 

20 

21 

23 

7.6 

6.7 

9.4 

13

Sodium 

(Na)

Potassium 

(K)

225 

291 

225 

187 

195 

183

227 

168 

163 

239 

137 

219

212 

242 

250 

337 

121 

75 

121 

161

Bicarbonate 

(HCO,)

178 

174 

186 

178 

185 

176

174 

164 

139 

150 

124 

156

1/167 

170 

160 

166 

87 

62 

75 

88

Sulfate 

(SOJ

85 

96 

80 

71 

67 

63

92 

56 

66 

69 

62 

84

71 

78 

87 

99 

39 

27 

39 

46

Chl

rid

(Cl

4

2

3

2

2

4

2

3

3

4

4

5

2

2

I/Includes equivalent of 8 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued

ARKANSAS RIVER AT LITTLE ROCK, ARK. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Jan. 1-4, 7-10, 1949

Feb. 10, 15-16, 19-20 

Feb. 11, 17-18 

M n 1Q OK

May 1-2, 5, 10 

May 21-25, 27-28 

Mav 2fi 29-31 ------

Mean 

discharge 

(secondfeet)

20,420 

24, 200 

29,220 

13,420 

71, 530 

103, 100 

180, 000 

266, 000 

223, 000

110, 500 

184, 500 

190, 000 

145,000 

161, 500

91,450 

80,230 

57,650 

47,750 

51,330 

107, 000

74, 330 

61,400 

47, 850 

52, 700 

27,960

73, 820 

105, 300 

64, 120 

43, 160 

240,000 

si s nnn

Temperature 

(°F)

Color

14 

8 

18 

5 

6 

9 

7 

9 

8

11 

8 

10 

8 

7

12 

9 

17 

6 

7 

12

17 

9 

14 

10 

9

22 

25 

22 

22 

13 

11

Specific 

conductance 

(micromhos at 

25° C)

815 

1,070 

889 

1,250 

434 

804 

538 

310 

471

306 

454 

586 

971 

439

501 

680 

659 

926 

1,040 

543

589 

1,130 

743 

971 

887

811 

630 

847 

1,080 

757 

nnt

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

35 

45 

40 

56 

23 

44 

34 

27 

32

23 

31 

36 

49 

28

36 

42 

38 

49 

54 

30

36 

60 

44 

53 

54

46 

42 

51 

65 

52 

41

Magnesium 

(Mg)

7.5 

9.8 

8.8 

11 

5.4 

8.3 

5.8 

4.8 

5.2

5.3 

5.2 

6.2 

8.6 

6.2

6.2 

8.0 

7.8 

11 

12 

7.2

6.6 

11 

7.9 

11 

11

12 

8.5 

10 

16 

9.5 

a n

Sodium 

(Na)

Potassium 

(K)

115 

160 

123 

187 

53 

104 

63 

28 

57

31 

53 

75 

135 

50

55 

83 

82 

124 

143 

66

72 

154 

91 

125 

111

95 

67 

103 

128 

85

VI

Bicarbonate 

(HCOS )

76 

83 

85 

114 

52 

95 

82 

70 

74

64 

85 

94 

109 

90

84 

104 

86 

108 

118 

75

86 

120 

102 

109 

128

103 

100 

113 

128 

120

3ulfate 

(30J

39 

51 

44 

65 

23 

37 

22 

13 

24

18 

24 

30 

40 

29

31 

44 

48 

60 

71 

29

40 

87 

50 

60 

63

47 

30 

49 

86 

52

Chlo

ride 

(Cl)

1

26

20

30

9

17

1

5

9

5

8

11

22

7

9

13

12

20

22

1

11

23

14

20

17

16

12

17

21

14
June 21-22, 30 

July 2-3, 8-10 

July 11-13, 15 

July 14, 16-20 

July 23, 25-26 

July 24, 27-31 -----

Aug. 1-3, 7-10 -

Aug. 21-24, 27-28 - 

Aug. 25-26, 29-31 -

Sept. 11-14, 19-20-

Sept. 21, 24-26 -

Sept. 25, 27-30 -

Weighted average

80, 400

33, 740 

46, 080 

58, 080

29, 730 

22, 100

23, 100

15 230

12, 080 

10, 010

7 331

17, 680

29, 000

23, 680

58, 420

8

22 

13 

17

nn

17 

17

6

5 

6

6

7

7

817

932

1,080 

1,120 

641

1,130 

1,340

1,250

1,340 

1,610

1,800

1,640

1,180

732

56

tt7

76 

72 

47

70 

80

80

7fi

fifl

73

84 

94

86

81

68

45

9 9

11

20 

17 

9.3

8

n

15 

16

16

17 

21

nn

22

18

94

16

9.2

Oft

98

115 

135 

67

tjn

139 

171

162 

1 1 H

237

174 

230

263

232

QQQ

144

89

1/132 

124

_2/160 

144 

109

137 

153

159

159 

166

144

138

125

120

105

na

82

109 

110 

50

95 

112

100

94 

129

116

89 

99

83

48

I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 7 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Contin

ARKANSAS RIVER AT LITTLE ROCK, Ark. 

Temperature (* F ) of water, water year October 194

Day

2

19

9<t

94

9ft

29

31

October

70

ft 9

an

B9

November December January February March

a£

Ap
ARKANSAS RIVER BASIN Continued 

VERDIGRIS RIVER NEAR CLAREMORE, OKLA

LOCATION. At gaging station at bridge on State Highway 20, 2$ miles downstream from Caney River

upstream from Bird Creek. 

DRAINAGE AREA. 6,534 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 500 parts per million Oct. 1-10; minimum, 178 pa

Total hardness: Maximum, 291 parts per million Jan. 11-15; minimum, 95 parts per million Jan. 

Water temperatures: Maximum, 93* F July 22; minimum, freezing point on several days in Janua

EXTREMES, 1947-49. Dissolved solids: Maximum, 548 parts per million Feb. 11-20, 1948; minimum, 

Total hardness: Maximum, 294 parts per million Mar. 1-10, 1948; minimum, 50 parts per million 

Water temperatures: Maximum, 93* F July 22, 1949; minimum, freezing point on several days in 

REMARKS. Records of discharge for w^ter year October 1948 to September 1949 given in Water-Supp

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1946 to Septemb

Date of collection

Oct. 1-10, 1948 

Oct. 21-Nov. 1 

Jan. 1-10, 1949 

Jan. 21-22, 30-31 

Feb. 24-28 

Mean 

discharge 

(secondfeet)

63.2 

52.0 

55.3 

888 

8,267 

192 

131

218 

167 

131 

248 

715 

19,500 

3,780 

21, 820

4,198 

17, 020 

22,360 

9,863 

4 334

Temperature 

(°F)

PH

8.2 

8.0

8.2

8.2 

8.1

7.6

Specific 

conductance 

(micromhos at 

25* C)

872 

843 

796 

602 

342 

624 

644

659 

788 

835 

876 

819 

329 

464 

285

527 

374 

306 

381 

RS9

Silica 

(810.)

1.0 

9.0

10

6.4 

4.6

23

Iron 

(Fe)

0.00 

.00

.00

.00 

.00

1.2

Calcium 

(Ca)

84 

64 

62 

.57 

33 

61 

68

74 

84 

80 

76 

82 

31 

48 

30

62 

39 

36 

48

R4

Magnesium 

(Mg)

18 

18 

20 

10 

5.8 

10 

12

11 

15 

16 

17 

21 

6.0 

8.5 

5.0

9.9 

7.9 

6.8 

9.9

19

Sodium 

(Na)

71 

8 

76 

54 

3! 

6! 

48

5! 

65 

7S 

78 

5( 

2t 

31 

23

3! 

28 

17

n >f

Potassium 

(K)

4.3 

t) 

3 6

\ 

4.2

6.4 

6.3

2.9

Bicarbonate 

(HCO,)

248 

179 

167 

147 

97 

163 

193

210 

216 

230 

206 

229 

79 

119 

80

160 

100 

102 

135

1 /17Q

Sulfate 

(SO,)

41 

40 

41 

26 

19 

28 

29

32 

38 

41 

43 

42 

23 

25 

20

36 

36 

21 

29 

30

I/Includes equivalent of 7 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued 

VERDIGRIS RIVER NEAR CLAREMORE, OKU. Conti

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Mar. 1-3, 1949- -

Max 11 20

Apr. 28-May 10 

May 11, 18-20 

Ma,v 12 17

Ma,v 21 31

Weighted average -

Mean 

discharge 

(secondfeet)

13, 870 

3,877 

3,981 

2,920 

6,603

6,295 

8,426 

2,784 

1,208 

7,112 

16,300 

1,555 

17, 260

3,914 

17, 500 

9,746 

3,038 

8,122 

1,258 

9,092 

13,380 

3,600 

911 

5,503

3,562 

950 

375 

188 

303 

489 

6,468 

947

4,974

Temperature 

(°F)

PH

8.0 

7.7 

8.1

8.2 

8.3

"

Specific 

conductance 

(micromhos at 

25" C)

400 

531 

671 

706 

542

508 

534 

644 

682 

442 

310 

476 

319

448 

270 

315 

420 

300 

391 

280 

292 

386 

489 

311

380 

534 

593 

619 

680 

771 

413 

539

380

Silica 

(Si02)

11 

8.0 

12

1.6 

12

"

Iron 

(Fe)

0.02 

.16 

.12

.05 

.15

"

Calcium 

(Ca)

47 

63 

78 

81 

60

55 

58 

72 

72 

54 

38 

56 

34

54 

30 

31 

47 

37 

46 

30 

30 

42 

49 

42

44 

60 

60 

63 

70 

70 

41 

54

42

Magnesium 

(Mg)

7.9 

11 

12 

14 

10

9.5 

11 

13 

12 

7.8 

6.3 

8.1 

6.2

7.9 

5.9 

5.5 

7.0 

5.4 

6.7 

6.0 

5.8 

7.5 

8.0 

7.0

6.8 

9.5 

11 

12 

12 

15 

7.6 

10

7.4

Sodium 

(Na)

Potassium 

(K)

25 

34 

52 2.2 

52 

40

33 | 2.5 

36 

48 

48 

30 1 3.0

32 

19

26 

14 

IB 4.4 

26 

15 

23 

15 

18 

24 

27 

22

23 

37 

45 I 5. 2 

47 

51 1 4. 6 

65 

30 

40

26

Bicarbonate 

(HCOS )

136 

2/177 

210 

1/231 

164

171 

159 

205 

202 

151 

105 

165 

109

169 

87 

109 

143 

112 

145 

90 

92 

132 

151 

134

140 

184 

182 

198 

214 

198 

121 

162

121

Sulfate 

(SOJ

26

37 

47 

53 

43

33 

39 

52 

44 

31 

20 

30 

19

24 

21 

18 

21 

13 

20 

15 

14 

19 

19 

16

16 

25 

22 

25 

24 

32 

15 

19

25

C

r

(

Vlncludes equivalent of 8 parts per miUion of carbonate (CO,). 

J/Includes equivalent of 10 parts per million of carbonate (CO,).
Temperature (* F ) of water, water year October 

Day

1 

19

20

23

25

27 - 

28

30

verage

October

65 

72

tit

75

54

November

66

QQ

December

39

45

59

44

42

44

January

47

45

37

QQ

43

33

37

35

QQ

32

39

37

QQ

QQ

QQ

QQ

February

33

QQ

QQ

32

37

37

QQ

37

42

44

42

QQ

March

41

43

52

50
ARKANSAS RIVER BASIN Continued 

VERDIGRIS RIVER NEAR INDIA, OKLA.

LOCATION. At bridge on State Highway 33, 6 miles downstream from Dog Creek, and 6 miles west o

DRAINAGE AREA. 7,911 square miles. jL/nniiinua njuu*»~ § , fj.4. OIJUCL.I.C IUJ.JLCO.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 928 parts per million Oct. 21-Nov. 2; minimum, 

Total hardness: Maximum, 351 parts per million Dec. 18-20; minimum, 64 parts psr million July 

EXTREMES, 1947-49. Dissolved solids: Maximum, 1,630 parts per million Feb. 20-22, 1948; minimu

Total hardness: Maximum, 500 parts per million Feb. 20-22, 1948; minimum, 60 parts per millio

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water Supp

samples available in district office at Stillwater, Okla.

Chemical anal]

Date of collection

Oct. 1-10, 1948 

Oct. 21-Nov. 2 

Nov. 21-22, 29-30 

Jan. 1-7, 1949 

Jan. 17, 19-20 

Jan. 18, 24-29 

Jan. 21-23, 30-31 

Feb. 11-14, 20 

Feh 35-2H 

Mean 

discharge 

(secondfeet)

84.5 

69.1 

69.4 

3,782 

246 

177 

157

264 

218 

186 

185

205 

486 

577 

3,615 

21,530 

27,300 

6,350

4,370 

18,580 

19,860 

30,620 

11,120 

5 (V72

Temperature 

<°F)

pH

8.0 

8.0

8.3 

8.3

Specific 

conductance 

(micromhos at 

25* C)

1,430 

1,600 

1,550 

656 

957 

1,120 

890

B03 

1,000 

1,510 

1,530

1,480 

1,210 

1,180 

780 

493 

262 

515

558 

376 

350 

276 

405 

5H2

Silica 

(SiOa)

8.4 

8.4

6.4 

5.2

Iron 

(Fe)

0.00 

.00

.00 

.00

pses, in parts per million, water year October 1948 

Calcium 

(Ca)

92 

90 

94 

56 

65 

77 

63

68 

88 

106 

100

96 

92 

96 

49 

44 

26 

51

59 

37 

38 

32 

46 

R3

Magnesium 

(Mg)

22 

24 

24 

10 

13 

17 

17

15 

17 

21 

21

23 

19 

18 

10 

7.4 

4.6 

8.8

10 

8.5 

8.1 

5.3 

7.7 

11

Sodium 

(Na)

204 

2: 

( 

109 

1C 

1'

133 

1! 

1' 

188

11

i:

1 

(

4

/

'

Potassium 

(K)

9 

7.0 

0 

5 

4.7 

1 

6

6.0 

8 

8 

9.9

3 

8 

7 

)8 

5 

21 

8

0 

!4 

!5 

7 

6 

16

Bicarbonate 

(HCOS )

222 

205 

222 

145 

149 

183 

146

162 

210 

1/213 

2/219

37230 

230 

252 

89 

106 

65 

126

145 

92 

105 

89 

128 

175

Sulfate 

(S04)

37 

37 

34 

27 

27 

27 

25

29 

31 

41 

37

38 

16 

43 

25 

19 

22 

24

38 

25 

25 

21 

25 

36

C

I/Includes equivalent of 16 parts per million of carbonate (C 

2/Includes equivalent of 9 parts per million of carbonate (CO, 

2/facludes equivalent of 13 parts per trillion of carbonate (C'
ARKANSAS RIVER BfiSIN 73

TH tO N OS ^ CO O CO O O Tf C4C

§§SS S

£ to to to <*c4^ioac4 T-4o<i<i*-4 in in os o o oo o * o m to oo in CQ <-i in 1-4 o> in m t- S os t- N to o o> in * * *< in to os co oo e*

co S Os S 9t-§vo> THtooon «noao<*<* t- ^* S* § co §

oooo ooooo OOOIAO in in in o « « in in in in o « 

o

t- o 

to e- o w «o C4 os oo C4 oo in oo co w M in os o ^»* oo to in oo o o to

tO T-4 t=4 in OS rH O V OS 00 M 00 * tO 0> T-4 00 CO C4 tO l« W O O t- V

r-in^oo oo o O oo t- S M S ^ S o in o co ^** ^** t- o co K os to 

« to ^ t- os in M in oo to «« t- »-* o eo <* « C4 oo c- oo co C4 to in oo

>.>>>>>>> > SS&SSS >.>.>>>.>>>> ^tl-tt Illll 444411 333333
74 LOWER MISSISSIPPI RIVER BASIN

Ha 

CaCO, as 

M

ill

 o 5 o

il

4 8 !

i 3 *

11 i

11"

03 iS

 _ 8-3

2g£gS S OO O IA CO CO C- C

iHoa 

'd' Ift CO OS C- CO

CM CO CO » 

CM OO in C

»H O> CO O ^ CM t- CO 

Ot-t-t-CO CO O) iH O

co CM o O in in oo co C

O> ^ Ift C- iHC-iHiHi

^« as co o « ca in t-

 COt-iHCA O « O CO C

CM ^ O O> ^ 

CO CO ^ 1A C4 ^ o « t- cq
ARKANSAS RIVER BASIN Continued 

NEOSHO RIVER NEAR COMMERCE., OKLA.

LOCATION. At bridge on county highway, 1} miles upstream from Mud Creek, 1J miles downstream 

Ottawa County.

DRAINAGE AREA. 5,876 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: November 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 570 parts per million Jan. 1-10; minimum, 83 pa

Total hardness: Maximum, 388 parts per million Jan. 11-14; minimum, 53 parts per million Apr

Water temperatures: Maximum, 90° F Aug. 11; minimum, freezing point Dec. 27, Jan. 29, 31. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 570 parts per million Jan. 1-10, 1949; minimum, 

Total hardness: Maximum, 388 parts per million Jan. 11-14, 1949; minimum, 51 parts per milli

Water temperatures: Maximum, 90° F Aug. 26, 1948, Aug. 11, 1949; minimum, freezing point on 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sup

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

TfoVt 1A 1 Q

F

aVt 91 9fl

Mar 91-51 

Mean 

discharge 

(secondfeet)

206 

175 

153 

2,561 

234 

180

178 

167 

160 

620 

664 

7,750

4,988 

13,850 

25, 180 

8,752 

4,856 

3,648 

A RRS

Temperature

(°F)

PH

8.1 

8.3 

8. 1

8.3 

8.1

7.5

8.6 

7 fi

Specific 

conductance 

(micromhos at 

25* C)

465 

649 

584 

292 

391 

558

646 

674 

766 

884 

922 

187

280 

270 

178 

278 

425 

472 

430

Silica 

(S102)

10 

12 

11

9.6 

8.0

15

11 

IS

Iron 

(Fe)

0.00 

.00 

.00

.00 

.00

.40

.05 

.10

Calcium 

(Ca)

52 

86 

76 

31 

40 

65

85 

93 

85 

103 

98 

25

37 

36 

23 

38 

57 

62 

57

Magnesium 

(Mg)

14 

18 

17 

7.7 

10 

14

19 

21 

28 

29 

35 

6.7

8.0 

8.3 

6.7 

7.2 

11 

13 

11

Sodium 

(Na)

20 

2 

27 

1 

19 

3

35

4 

44 

4 

3

10

1 

17 

1 

19

Potassium 

(K)

4.6

1 

4.5 

» 

7.2

5.8 

7 

7.7 

6 

6 

1.2

3.0 

6.3 

1.3 

2

2.4

Bicarbonate 

(HCO,)

185 

208 

223 

88 

134 

198

249 

269 

234 

266 

227 

67

92 

103 

61 

110 

160 

170 

151

Sulfate 

(SO,)

56 

112 

84 

48 

58 

77

95 

111 

132 

158 

188 

27

47 

33 

25 

37 

61 

76 

72
ARKANSAS RIVER BASIN--Continued 

NEOSHO RIVER NEAR COMMERCE, OKLA. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Apr. 21-27, 29-30 

May 21-22, 25-27 

May 23-24, 28-31 

Aug. 11-12, 16-20 

Sept. 18, 22-30 ----- 

Sept. 19-21 

Mean 

discharge 

(secondfeet)

5,772 

1,634 

3,410 

5,070 

2,644 

13,000

5,586 

4,950 

12, 170 

3,916 

15, 140 

4,953

5,707 

7,474 

5,479 

1,512 

1,607 

19,430 

5,572 

1,979 

1,048

1,265 

470 

496 

3,260 

268 

300 

1,173 

11,580

Temperature 

<°F)

PH

7.8 

8.3

Specific 

conductance 

(micromhos at 

25° C)

312 

480 

529 

378 

452 

130

303 

491 

254 

362 

256 

401

450 

236 

342 

435 

520 

158 

252 

357 

222

315 

386 

554 

396 

500 

601 

367 

210

Silica 

<Si02)

8.0 

8.6

Iron 

(Fe)

.05 

.08

Calcium 

(Ca)

40 

64 

72 

51 

60 

14

36 

65 

25 

45 

23 

48

65 

29 

46 

56 

67 

20 

30 

47 

29

40 

49 

68 

49 

68 

78 

42 

23

Magnesium 

(Mg)

8.6 

14 

16 

10 

12 

4.4

8.3 

13 

8.4 

9.9 

7.8 

11

14 

7.5 

10 

12 

15 

5.5 

7.6 

9.7 

5.8

8.4 

11 

18 

11 

15 

21 

12 

6.1

Sodium 

(Na)

1 

1 

1 

1 

o

i 

i'

2

1 

1 

2( 

2'

1!

1 

15 

2(

1 

1! 

14

10 

1'

2]

" J

2S 

14 

I

Potassium 

(K)

1 

6 

6 

J 

2

I 

I 

) 

) 

)

.4 

3.3

.7

1.9 

,1

.9

Bicarbonate 

(HCOS)

114 

182 

202 

152 

193 

39

105 

196 

96 

148 

100 

153

214 

80 

133 

162 

205 

53 

90 

145 

85

136 

144 

126 

171 

214 

216 

111 

58

Sulfate 

(S04)

45 

72 

85 

47 

53 

20

47 

65 

39 

46 

33 

64

45 

36 

45 

67 

66 

21 

37 

43 

30

31 

62 

161 

42 

69 

116 

69 

40

Ch

ri

(C
Temperature (° F ) of water, water year October 194

Day

I ...................

1 9

91

22

23

94

9A

qn

October

63

A9

65

52

err

November

64

42

43

December

42

40

CO

46

44

42

QD

q«)

37

January

36

SO

39

qQ

07

qo

qj

qn

qo

qq

February

33

qj

q j

qe

35

qr»

17

q7

qc

qn

39

QO

qn

qn

qn

43

49

March

43

46

AQ

JO

44

44

A9

49

49

49

43

4Q

CQ

Ap
ARKANSAS RIVER BASIN Continued 

NEOSHO RIVER NEAR WAGONER, OKLA.

IXKATION. At gaging station at bridge on U. S. Highway 51, 5 miles southeast of Wagoner, Wagoner 

DRAINAGE AREA. 12,307 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 187 parts per million May 23-31; minimum, 129 part

Total hardness: Maximum, 144 parts per million Feb. 11-13, 18-20; minimum, 59 parts per million 

Water temperatures: Maximum, 84° F Au£. 18; minimum, 33° F Jan. 29-30. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 208 parts per million Apr. 21-30, 1948; minimum, 1

Total hardness: Maximum, 153 parts per million Apr. 21-30, 1948; minimum, 57 parts per million 

Water temperatures: Maximum, 84° F Aug. 18, 1949; minimum, freezing point Jan. 17, 27, 29, Feb

REMARKS. Records of discharge for period October 1948 to July 1949 given in Water-Supply Paper 11

records for Neosho River near Choteau, Okla. which are given in Water-Supply Paper 1147. Recor

in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Dec 21 3 1

Jan. 1-10, 1949 

Feb. 11-13, 18-20 

Feb 2 1 28

MOT- 1 1 »9n

Mar 91-31 

Mean 

discharge 

(secondfeet)

3,216 

3,126 

3,215 

2,949 

3,234 

2,684

3,730 

2,648 

3,410 

2,953

4 1Q9

8,254

22,380 

35,680 

28,500 

33,150 

10,630 

8,554 

14 san

Temperature 

(°F)

pH

7.6 

8.0 

8.1

7.9

7.4

7.5 

8.4

Specific 

conductance 

(micromhos at 

25° C)

218 

232 

238 

255 

252 

247

252 

246 

233 

263 

279 

247

266 

291 

207 

259 

250 

246 

230

Silica 

(Si02)

14 

13 . 

12

12 

14

14 

6.5

Iron 

(Fe)

0.24 

.04 

.00

.06 

.20

.30 

.64

Calcium 

(Ca)

31 

33 

34 

38 

36 

35

36 

37 

38 

38 

38 

24

37 

46 

28 

34 

32 

34 

30

Magnesium 

(Mg)

4.4 

5.0 

4.9 

6.1 

5.1 

5.4

5.7 

6.1 

5.9 

5.5 

5.3 

5.8

6.6 

7.0 

8.1 

9.2 

4.6 

5.8 

4.8

Sodium 

(Na)

1 

6.7 

1 

7.3 

1 

8.0

1 

8.5

1 

8.0

;

^

8.8

' 

11

Potassium 

(K)

0 

3.4

3.8 

3.8

5

3.9 

1.9 

9.5 

L 

| 3.2

1. 5 

.6 

.8 

.0 

| 3.8 

.4 

1 3.4

Bicarbonate 

(HCOa)

97 

98 

103 

107 

110 

108

109 

111 

111 

112 

108 

103

104 

105 

69 

85 

80 

81 

75

Sulfate 

(SOJ

22 

24 

27 

36 

31 

30

33 

30 

30 

31 

31 

30

36 

46 

34 

43 

40 

39 

36

Chl

rid

(Cl

9

6

10 

8

12 

9

12 

9

9

8

13 

8

7

10 

6

9

7

9

7
Apr. 1-10 - 

Apr. 11-20 

Apr. 21-30- 

May 1-10 

May 11-18- 

May 19-20 - 

May 21-22- 

May 23-31-

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. 1-10- 

Sept. 11-20- 

Sept. 21-30-

Welghted average 

8,876

10,840

7,243

13,690

10,310

46,200

29,600

35,910

16,580

23,510

7,844

8,902

17,510

6,697

5,766

4,356

2,598

2,289

2,826

4,683

9,942

228

234

255

263

279

149

172

283

292

266

278

264

260

272

271

269

277

276

279

268

5.5 

5.4

5.9

6.0 

6.0 

4.4 

4.0 

5.9

6.8 

5.8 

6.1 

6.1 

5.3 

4.8

4.6 

5.8 

5.8 

5.8 

5.6 

5.8

8.2 

8.1

5.2

7.6

10

9,3

6.1

12

15

25

17

20

25

2.2 

3.2

10

8.4 I 3.4 

7.7 

7.7 

11 I 2.1

82

80

95

95

99

54

62

102

102

91

100

92

97

107

106

108

106

108

107

111
ARKANSAS RIVER BASIN Contin

NEOSHO RIVER NEAR WAGONER, OKLA.--

Temperature (° F ) of water, water year October 1

Day

l . ........

Q

9

12

1 R

23

25 ---.

OQ

October

71

Aft

59

an

November

66

57

52

52

52

EC

AO

45

54

December

48

AO

52

AO

Aft

43

43

A*

January

41

AO

43

42

OQ

op

37

on

OQ

on

04

33

 t A

February

37

OQ

00

39

OQ

OQ

39

39

OQ

39

39

OQ

39

39

March

42

43

42

40

AO

Eft
ARKANSAS RIVER BASIN Continued 

SPRING RIVER NEAR QUAPAW, OKLA.

LOCATION. At gaging station at bridge on county highway, an eighth of a mile upstream from Rock C

DRAINAGE AREA. 2,580 square miles, including that of Rock Creek. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 375 parts per million Oct. 21-31; minimum, 133 pa

Total hardness: Maximum. 268 parts per million Oct. 21-31; minimum, 71 parts per million June 

Water temperatures: Maximum, 83° F July 4-5; minimum, freezing point Jan. 29-Feb. 1. 

EXTREMES, 1947-49. Dissolved solids: Maximum. 375 parts per million Oct. 21-31, 1948; minimum, 

Total hardness: Maximum, 268 parts per million Oct. 21-31, 1948; minimum, 48 parts per million 

Water temperatures: Maximum, 83° F Aug. 28, 1948, July 4-5, 1949; minimum, freezing point on 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Dec. 11-12, 15, 18, 20 

Dec. 13-14, 16-17, 19

Jan. 1-11, 1949 -----

Jan. 21-22, 28-31 

Mar 91-31 . ...

Mean 

discharge 

(secondfeet)

335 

290 

286 

1,307 

428 

338

284 

331 

323 

370

448 

2,402 

4,108 

2,563 

10,610

4,125 

9,075 

2,892 

1,826 

2,934 

4 RS9

Temperature

PH

8.2 

8.2

8.0

7.5 

7.8 

7.5

Specific 

conductance 

(micromhos at 

25" C)

490 

508 

555 

284 

404 

425

395 

466 

360 

390

514 

462 

294 

346 

206

312 

222 

313 

366 

341 

279

Silica 

(SiO.)

7.0 

9.6

6.0

18 

10 

8.n

Iron 

(Fe)

0.00 

.00

.00

.00 

.75 

.10

Calcium 

(Ca)

76 

80 

86 

39 

61 

70

76 

79 

74 

75

77 

64 

38 

49 

26

44 

28 

48 

50 

50 

34

Magnesium 

(Mg)

11 

12 

13 

6.8 

9.8 

11

13 

15 

12 

12

12 

11 

7.5 

7.6 

5.2

8.3 

4.1 

8.1 

8.3 

7.6 

5.8

Sodium 

(Na)

1

13 

1 

9.1 

1

12 

1

1

1

1 

1 

1 

1

7.2 

< 

7.7

9.7

Potassium 

(K)

I 

). 5 

4.3 

) 

4.7 

I

3.8

i

1.4

! 

I 

t

'.9 

3.5 

.2 

3.8 

.6 

4.0

Bicarbonate 

(HCO,)

130 

130 

125 

84 

116 

135

135 

137 

143 

144

143 

110 

67 

89 

48

79 

52 

98 

114 

93 

73

Sulfate 

(SO,)

126 

136 

156 

62 

93 

114

128 

140 

125 

117

130 

125 

76 

82 

59

73 

55 

62 

77 

78 

61

Ch

ri

(C

1

1

1

1

1
ARKANSAS RIVER BASIN Continued

SPRING RIVER NEAR QUAPAW, OKU. Continue

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Apr. 1-10, 1949 

June 9-11, 15-16 

June 12-14, 17-20 

Rnnt 11 IT

Weighted average 

Mean 

discharge 

(secondfeet)

1,942 

2,008 

2,165 

2,926 

2,006 

6,536

2,190 

5,506 

5,776 

3,033 

1,413 

1,311 

3,373 

1,403 

572

440 

549 

329 

412 

583 

3,305 

500

2,120

Temperature 

(°F)

PH

7.7

8.0 

7.9

«

Specific 

conductance 

(micromhos at 

25* C)

336 

344 

337 

296 

337 

244

388 

259 

171 

271 

337 

321 

259 

325 

364

386 

389 

411 

443 

406 

283 

366

291

Silica 

(SiQ.)

13

5.4 

4.3

--

Iron 

(Fe)

0.00

.00 

.00

-

Calcium 

(Ca)

56 

55 

53 

42 

51 

36

58 

38 

24 

38 

56 

49 

36 

48 

58

62 

64 

65 

68 

63 

37 

54

42

Magnesium 

(Mg)

6.6 

7.3 

6.7 

5.9 

6.8 

5.1

9.4 

5.7 

2.8 

4.9 

5.5 

5.5 

5.3 

6.6 

4.3

6.1 

6.1 

6.9 

7.0 

7.5 

7.6 

8.5

6.3

Sodium 

(Na)

4 

11 

11 

IS 

14 

3

e

3 

7

s 

s 

1 

1

1

8.0

1 

8.9 

( 

11 

( 

' 

J

Potassium 

(K)

.6

.8

.7 

.8 

.1 

.2 

.5 

.0 

.3 

.8 

3.6

.8 

2.1 

.4 

2.4 

.6

r.4

1.0

9.2

Bicarbonate 

(HCO.)

113 

110 

110 

90 

111 

66

92 

66 

56 

84 

115 

106 

70 

90 

118

127 

134 

126 

133 

128 

70 

103

82

Sulfate 

(80J

59 

76 

73 

70 

72 

51

99 

58 

28 

51 

56 

58 

58 

75 

72

74 

72 

88 

91 

82 

69 i 90

66

Ch

ri

(C
Temperature (° F ) of water, water year October 19

Day

1 

19

14

on

21

22

24

97

no

9Q

October

65 

64 

65 

63 

63

63 

56 

58 

59 

67

60 

57 

55 

59 

63

59 

55 

55 

48 

45

51 

48 

54 

55 

53

53 

56 

56 

57 

62 

62

58

November

64 

63 

62 

66 

57

56 

55 

55 

57 

50

51 

52 

50 

50 

53

57 

55 

56 

48 

45

46 

45 

45 

45 

47

58 

47 

44 

44 

44

52

December

44 

45 

46 

48 

46

44 

43 

42 

41 

41

46 

48 

52 

53 

58

49 

49 

58 

44 

44

45 

45 

43 

43 

39

37 

38 

44 

39 

38 

37

45

January

38 

47 

47 

41 

37

39 

40 

47 

42 

39

38 

38 

37 

42 

47

41 

40 

38 

35 

35

37 

39 

42 

37 

34

33 

36 

33 

32 

32 

32

39

February

32 

34 

33 

37 

38

38 

37 

37 

39 

39

40 

42 

39 

41 

38

47 

41 

43 

45 

44

47 

40 

49 

50 

47

47 

43

41

March

44 

43 

44 

48 

50

50 

49 

52 

50 

47

46 

45 

43 

43 

43

45 

45 

43 

44 

47

49 

49 

51 

53 

59

57 

54 

56 

58 

62 

54

49

A
ARKANSAS RIVER BASIN Continued 

ELK RIVER NEAR TIFF CITY, MO.

LOCATION*. At gaging station at bridge on State Highway 43, 3 miles southeast of Tiff City, McDon

DRAINAGE AREA.--872 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 194S-49. Dissolved solids: Maximum, 162 parts per million Aug. 11-20; minimum, 137 pa

Total hardness: Maximum, 135 parts per million Dec. 11-20, Jan. 1-10; minimum, 106 parts per m

Water temperatures: Maximum, 87° F Aug. 17; minimum, 40° F Jan. 30-31. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 162 parts per million Aug. 11-20, 1949; minimum, 

Total hardness: Maximum, 135 parts per million Dec. 11-20, 1948, Jan. 1-10, 1949; minimum, 94 

Water temperatures: Maximum, 87° F Aug. 17, 1949; minimum, freezing point Jan. 21, 1948. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Stillwater, Okla.

Chemical analyses, In parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

IToK 1 1 *>n

F

_y. O1 OR

Man 21-31 

Mean 

discharge 

(secondfeet)

144 

133 

138 

468 

178 

140

148 

312 

303 

295 

434 

2,053

1,466 

2,861 

1,156 

650 

668 

1,935

981 

900 

823 

1,582 

1,642 

s nm

Temperature 

(°F)

PH

8.2

8.3

8.0 

8.2

8.2

8.6

7.6

Specific 

conductance 

(micromhos at 

25° C)

262 

257 

254 

236 

253 

262

209 

261 

260 

259 

260 

242

241 

214 

235 

237 

234 

228

229 

229 

233 

234 

237 

247

Silica 

(SiO.)

7.9

9.0

12 

10

12 

7.8

11

Iron 

(Fe)

0.01

.00

.00 

.00

.00 

.01

.01

Calcium 

(Ca)

49 

48 

48 

45 

47 

44

45 

48 

46 

48 

48 

44

44 

39 

43 

43 

41 

42

43 

42 

42 

43 

37 

41

Magnesium 

(Mg)

2.8 

3.0 

3.0 

2.9 

2.9 

3.3

2.7 

3.8 

2.9 

3.8 

3.3 

3.5

3.5 

2.2 

3.1 

2.4 

2.5 

3.3

3.1 

2.8 

2.4 

2.7 

3.7 

3 ft

Sodium

(Na)

5. 

3.3 

4. 

4 

4. 

3.5

8 

3.1 

5 

3.2

1

2 

2.5 

2 

4 

4.0 

4

3 

4 

4.0

7 

9

5

Potassium 

(K)

3

1.5 

1 

1 

3 

1.6

5 

2.4 

9 

2.0

4 

8

4 

2.6 

7 

0 

2.0 

5

3 

2

1.5

1 

4

0

Bicarbonate 

(HCO,)

157 

154 

155 

142 

148 

146

151 

147 

148 

145 

148 

132

133 

118 

129 

130 

131 

130

134 

134 

135 

144 

133 

134

Sinfate 

(S04)

4.6 

3.6 

3.7 

5.1 

4.9 

4.6

5.0 

5.4 

5.0 

5.6 

5.6 

5.8

7.0 

6.3 

6.1 

4.9 

5.8 

6.9

5.2 

5.3 

5.3 

5.9 

6.0 

R n

Ch

rid

(C
Sept. 21-30 

Weighted average1,054 

2,075 

648 

758 

1,072 

337

217 

178 

130 

146 

705 

493

838

7.5 

7.8 

8.1-

253 

242 

270 

240 

257 

255

262 

268 

260 

254 

254 

257

240

10 

12 

5.6-

0.00 

.00 

.00

--

42 

44 

47 

42 

46 

46

47 

48 

46 

46 

46 

48

43

2.5 

3.5 

4.0 

2.7 

2.4 

1.2

2.9 

3.3 

3.0 

3.1 

3.3 

2.4

3.1

8 

4 

1 

5 

5 

3.6

2 

4.4 

4 

2 

3.6 

34

4 

5 

9 

4 

2 

1.6

.9 

1.9 

4 

.0 

1.6 

16

142 

144 

144 

137 

148 

150

148 

154 

151 

146 

147 

154

136

4.9 

4.8 

4.3 

4.5 

5.3 

4.3

4.4 

4.8 

4.3 

4.4 

4.6 

3.5

5.6

3

3

3

4

4

5

4

4

4

3

4
ARKANSAS RIVER BASIN Con

ELK RIVER NEAR TIFF CITY, MO. C

Temperature (* F ) of water, water year October 194

Day

1 4

2i)

91

23

27 --*

30

October November December January

49

February March A
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR SANCHEZ, N. HEX.

LOCATION. At Sabinoso, San Miguel County, about 5 miles upstream from gaging station at bridge o

Creek, 3 miles northeast of Sanchez, San Miguel County, 10 miles downstream from Mora River, a

DRAINAGE AREA. 5,925 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1939 to June 1949. 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 1,800 parts per million Apr. 1-10; minimum, 515 p

Total hardness: Maximum, 979 parts per million Apr. 1-10; minimum, 321 parts per million May 1

EXTREMES, 1940-49. Dissolved eolids: Maximum, 2,320 parts per million June 10-11, 1943; minimum

Total hardness: Maximum, 1,260 parts per million June 10-11, 1943; minimum, 104 parts per mill

REMARKS, Records of discharge for gaging station near Sanchez, N. Mex., for water year October 

No appreciable inflow between sampling point and gaging station except during periods of heavy 

ed June 30, 1949. Records of specific conductance of daily samples available in district offi

Chemical analyses, In parts per million, October 1948 to June 1

Date of collection

Oct. 1-10, 1948 

Oct. 21-24, 27-30- 

Oct. 25-26 I/- - 

no/* 5i ^ 1

Jan. 1-10, 1949 

Feb 21 28

Mar 51-51 . ______

Mean 

discharge 

(secondfeet)

0.8 

1.5 

6.2

24.2 

20.1

23.3 

36.8 

25.9 

20.5 

27.7 

26.8

24.1 

54.2 

57.2 

37.9 

16.3 

17 a

pH

7.8 

7.8 

7.8 

7.9 

7.6 

7.8

7.9 

8.0 ' 

8.1 

7.7 

7.9 

7.9

7.9 

7.9 

8.0 

7.8 

7.9 

7 Q

Specific 

conductance 

(micromhos at 

25" C )

1,450 

1,500 

1,820 

851 

1,910 

1,990

1,860 

1,710 

1,630 

1,550 

1,510 

1,840

1,650 

1,640 

1,530 

1,480 

1,790 

 > isn

Silica 

(SiO.)

14 

14 

12 

12 

12 

10

11 

9.6 

8.9 

9.8 

9.4 

9.8

8.6 

7.6 

7.1 

11 

9.6

P R

Iron 

(Fe)

0.02 

.01 

.02 

.04 

.01 

.01

.03 

.03 

.03 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.03 

fia

Calcium 

(Ca)

131 

138 

166 

74 

173 

184

175 

160 

152 

140 

138 

172

154 

146 

134 

131 

161 

 mi

Magnesium 

(Mg)

60 

62 

80 

35 

91 

97

94 

86 

82 

77 

74 

94

83 

82 

76 

73 

90

11R

Sodinm 

(Na)

Potassium 

(K)

121 

128 

157 

64 

159 

164

138 

121 

116 

111 

110 

132

121 

124 

114 

111 

141

Bicarbonate 

(HCO.)

235 

234 

208 

212 

196 

215

214 

221 

210 

231 

220 

224

227 

200 

185 

191 

195

Sulfate 

(804)

573 

612 

817 

256 

895 

936

858 

752 

718 

645 

635 

829

722 

729 

672 

643 

830 

i iin

Chlo

(C

I/Discharge October 25-26 included in discharge reported for October 21-24, 27-30.
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR SANCHEZ, N. HEX.--Continue

Chemical analyses, in parts per million, October 1948 to June 194

Date of collection

May 2-3, 7-10 

May 11-16 Z/ 

May 21-June 1, 4 

June 10-18, 20 

.Time 91 .3(1 ... 

Mean 

discharge 

(secondfeet)

31.1 

14.0 

30.3 

134 

282 

881 

108

193 

618 

1,080 

77R

PH

8.0 

8.0 

8.0 

8.1 

8.1 

8.1 

8.0

8.0 

8.1

R 1

Specific 

conductance 

(micromhos at 

25° C )

2,250 

2,110 

1,720 

980 

1,160 

752 

1,130

1,600 

831 

1,600 

R11

Silica 

(810.)

11 

13 

12 

14 

19 

17 

14

IS 

12 

15 

is

Iron 

(Fe)

'0.01 

.02 

.02 

.02 

.36 

.05 

.02

.02 

.04

09.

Calcium 

(Ca)

198 

181 

152 

93 

119 

81 

112

161 

90 

173 

RQ

Magnesium 

(Mg)

118 

111 

88 

42 

52 

29 

52

76 

33 

73

S1

Sodium 

(Na)

Potassium 

(K)

195 

177 

135 

66 

70 

43 

69

110 

46 

108 

45

Bicarbonate 

(HCO,)

179 

188 

181 

182 

203 

167 

180

187 

174 

257 

18(1

Sulfate 

(SO,)

1,140 

1,030 

797 

357 

447 

249 

442

723 

283 

68ft 

2RH

Chlori

(Cl)

4

4

3

1

2

1

2

3

1

2

1

^/Discharge for May 16 included in discharge reported for May 17-20.
ARKANSAS RIVER BASIN 89

ARKANSAS RIVER BASIN Continued

RESERVOIR BEHIND CONCHAS DAM, N. HEX.

Chemical analyses, in parts per million, water year October 1948 to September 1949

Date of collection Sampling 

point

Depth 

(feet)

Specific

conductance 

( micro -

mhos at

25° C ).

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride

(Cl)

MONTHLY COMPOSITE SAMPLES

Oct. 4, 22, 26, 1948 

Nov. 1, 8, 15, 22, 28 -- 

Dec. 12-13, 20, 27 

Jan. 3, 10, 17, 1949 

Feb. 9, 14, 21, 28 

Mar. 8, 14, 21, 28 

MQ-. 4 Q 1 ft 49

Oct. 4, 22, 26, 1948 

Nov. 1, 8, 15, 22, 28 

Dec. 6, 13, 20, 27 

Jan. 3, 10, 17, 1949 

Feb. 9, 14, 21, 28 

Mar. 8, 14, 21, 28 

MQV o a 1 o 99

Oct. 4, 22, 26, 1948 

Nov. 1, 8, 15, 22, 28 

Dec. 6, 13, 25, 27 

Jan. 3, 12, 17, 1949 

Feb. 9, 14, 21, 28 

Mar. 8, 14, 21, 28 

Mav 2 9 18 22

Station 1 j/ 

Station 2 2/ 

Stations 3/

1,010 

1,030 

1,030 

1,040 

1,040 

1,040 

1,050 

1,060 

1,070 

1,050

1,010 

1,030 

1,030 

1,040 

1,040 

1,040 

1,050 

1,050 

1,070 

1,040

1,000 

1,020 

1,030 

1,030 

1,040 

1,040 

1,050 

1,060 

1,070 

1,050

147 

154 

151

405 

403 

407 

409 

416 

413 

407 

410 

420 

406

394 

403 

411 

413 

412 

416 

407 

410 

416 

406

392 

406 

407 

419 

413 

414 

404 

409 

417 

402

21 

21 

22

SAMPLES FROM DIFFERENT DEPTHS

Oct 19 1948

Station 1 I/ 

Station 1 I/

Station 1 I/ 

Station 2 3/

Surface 

25 

50 

75 

100 

105 

110 

115 

120

Surface 

25 

50 

75 

90 

95 

100 

105 

110 

115

Surface 

25 

50 

75 

95 

100 

105 

110 

115

Surface 

25 

50 

75 

100 

105 

110 

115 

120

1,010 

995 

1,010 

1,010 

1,030 

1,040 

1,030 

1,030 

1,070

1,040 

1,050 

1,040 

1,040 

1,040 

1,040 

1,040 

1,040 

1,040 

1,090

1,050 

1,050 

1,050 

1,050 

1,050 

1,050 

1,050 

1,050 

1,060

1,010 

1,010 

989 

1,020 

1,030 

1,030 

1,040 

1,030 

1,080

148 

152

172

214 

158

193 

159

164 

151 

157

172 

207

386 

383

385

385 

399

393 

402

402 

384 

382

386 

386

24 

23

23 

23

24 

24

24 

24

I/Station 1: Conchas River arm of reservoir about 3, 500 feet above dam.

2/Station 2: At upstream face of main section of Conchas Dam.

3/Station 3: Canadian River arm of reservoir about 1,300 feet above dam.
90 LOWER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN Continued 

RESERVOIR BEHIND CONCHAS DAM, N. MEX. Continued 

Chemical analyses, In parts per million, water year October 1948 to September 1949 Continued

Date of collection Sampling 

point

Depth

(feet)

Specific

conductance 

(micromhos at

25" C )

Bicarbonate 

(HCO,)

Sulfnte 

(SO.)

Chloride 

(Cl)

SAMPLES FROM DIFFERENT DEPTOS-- Continued

Apr. 11 

Oct 19 1948 *

Jan. 26, 1949 

Apr. 11 

Oct. 19, 1948 

Jan. 28, 1949 

OUU.AUII ft £/

Station 2 2/

Stations 3/

Stations 3/

Stations 3/

Station 6 4/

Station 6 4/

QUA ia.bc

25

50

75

105

110

115

120

125

130

Surface

25

50

75

90

95

100

105

110

115

Surface

25

50

75

95

100

105

110

115

Surface 

25 

50

75

90

95

100

10S

110

115

Surface

25

50

75

90

95

100

105

110

115

Surface 

25

50

65

70

75

80

85

Surface 

25

50

65

70

75

80

85

90

1,040

1,040

1,040

1,040

1,050

1,040

1,050

1,040

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,090

1,020

1,010

1,010

1,020

1,020

1,030

1,040

1,030

1,140

1,030 

1,040 

1,030

1,030

1,030

1,030

1,030

1,030

1,040

1,080

1,040 

1,040

1,040

1,040

1,040

1,040

1,040

1,040

1,040

1,050

1,030 

1,030

1,030

1,030

1,040

1,030

1,030

1,070

1,040 

1,040

1,040

1,040

1,040

1,040

1,040

1,050

1,080

160

188

151

154

166

--

272 

159

182

158

176

151

168

175

158

--

189

--

Ano 4UO

416

385

387

388

400

QQQ tltfo

401

408

409

OQ7 Sa 1

398

408

396

405

~

22

24

20

25

::

23

23

23

..

--

--

3/3tatton 2: At upstream face of main section of Conchas Dam.

3/Station 3: Canadian River arm of reservoir about 1,300 feet above dam.

4/Station 6: Conchas River arm of reservoir, 5 miles above dam.
ARKANSAS RIVER BASIN 91

ARKANSAS RIVER BASIN Continued 

RESERVOIR BEHIND CONCHAS DAM, N. HEX. Continued 

Chemical analyses, in parts per million, water year October 1948 to September 1949 Continued

Date of collection Sampling 

point .

Depth 

(feet)

Specific

conductance 

(micromhos at

25° C )

Bicarbonate 

(ECO,)

Sulfate 

(S0«)

Chloride 

(Cl)

SAMPLES FROM DIFFERENT DEPTHS Continued

Apr. 11, 1949 

Oct 19 1948 *

Jan. 26, 1949 

Apr. 11 

Stations 4/

Station 7 5/

Station 7 5/

Station? 5/

Surface

25

SO

65

70

75

80

85

Surface

25

50

75

80

85

90

95

100 

Surface

25 

50

75

80

85

90

95

100

105 

Surface

25 

50

75

80

85

90

95

100

105

1,040

1,040

1,050

1,040

1,040

1,040

1,040

1,080

989

947

987

1,020

1,020

1,020

1,020

1,020

1,030

1,020 

1,030 

1,030

1,030

1,020

1,020

1,030

1,030

1,030

1,130 

1,050

1,050 

1,040

1,050

1,040

1,040

1,040

1,040

1,050

1,110

160

188

152

153

_

166

131 

158

160

_-

_.

212

399

405

 pi OO1

378

__

384

..

386 

398

--

425

414

--

21

21

21

21

--

"

4/Station 6: Conchas River arm of reservoir, 5 miles above dam. 

5/Station 7: Canadian River arm of reservoir, 5 miles above dam.
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR TASCOSA, TEX.

LOCATION. At Boys' Ranch near Tascosa, Old ham County, 20 miles upstream from gaging station near 

DRAINAGE AREA. --19,197 square miles at gaging station ae»r Anarillo. 

RECORDS AVAILABLE. Chemical analyses: June 1948 to September 1949.

Water temperatures: February to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,380 parts per million Feb. 15-18, 20; minimum, 

Total hardness: Maximum, 384 parts per million Feb. 15-18, 20; minimum, 128 parts per million 

EXTREMES. June 1948 to September 1949. Dissolved solids: Maximum, 1,380 parts per million Feb. 

Nov. 21-30, 1948.

Total hardness: Maximum, 441 parts per million Sept. 17 19-20, 1948; minimum, 128 parts per m

REMARKS. Discharge records for gaging station near Amarillo, Tex., for water year October 1948 t

No appreciable inflow between sampling point and gaging station except during periods of heavy 

daily samples available in district office at Austin. Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Feb. 15-18, 20, 1949 

Feb. 19, 21-28 ------

June 11-13, 19-20 

Jiilo SI-SI 

Mean 

discharge 

(secondfeet)

13.8 

18.9 

45.8 

216 

27.7 

9.89

22.5 

55.6 

89.9

366 

1,157 

811 

7,516 

2,305 

254

1,456 

2,566 

3,754 

933 

666 

629 

2,912 

4BR

Temperature

 F)

PH

7.8

8.2 

8.1 

8.2 

8.3 

8.0 

8.1

8.0 

8.1 

8.0 

8.2 

8.0 

7.9 

8.0 

8.1

Specific 

conductance 

(micromhos at 

25° C)

446 

451 

455 

415 

417 

407

2,330 

406 

508

1,610 

1,350 

1,400 

762 

984 

1,440

1,670 

906 

788 

435 

895 

721 

708 

739

Silica 

(SiO.)

24 

25 

24 

26 

27 

26

14 

26 

26

20 

19 

18 

22 

22 

23

22 

18 

15 

25 

19 

13 

13 

19

Iron 

(Fe)

0.00

Calcium 

(Ca)

50 

50 

49 

47 

50 

46

78 

43 

50

63 

56 

55 

40 

50 

58

56 

40 

36 

49 

42 

33 

30 

35

Magnesium 

(Mg)

16 

16 

17 

17 

17 

17

46 

17 

19

33 

26 

26 

20 

23 

32

42 

17 

14 

13 

16 

13 

13 

13

Sodium 

(Na)

Potassium 

(K)

20 

21 

21 2.0 

16 

12 

15

350 

22 

34

234 

190 

204 

94 

125 

203

230 

124 

.111 

25 

126 

100 

101 

105

Bicarbonate 

(HCOS )

250 

250 

250 

236 

236 

234

243 

236 

260

252 

200 

221 

245 

236 

210

235 

212 

189 

239 

206 

182 

178 

191

Sulfate 

(SOJ

15 

17 

14 

17 

17 

17

381 

17 

23

295 

240 

256 

101 

152 

263

260 

122 

121 

16 

146 

106 

106 

107

Ch

ri

(C

3

2

2
Sept. 21-30 -------

Weighted average 

1 841

004

256

36.3

504

8

Q

8.1"

HAO

I

n an

1,860

990

19

18

^

73

70

70

74

45

43

21

nan

*ft"7

269

136

190

193

1Q4

193

193

209

391

apo

394

395

163
ARKANSAS RIVER BASIN Conti

CANADIAN RIVER NEAR TASCOSA, TEX

Temperature (* F ) of water, February to 

Day

1 * .....

D

in

on

22

net

no

art

October November December January February

--

March

39

A
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR AMARILLO, TEX.

LOCATION.---At gaging station at bridge on D. S. Highways 87 and 287, 2,000 feet downstream from 

Santa Fe.Railway bridge, and. 19 miles north of Amarillo. Potter County. 

DRAINAGE AHEA.--19.287 square miles (revised).

RECORDS AVAILABLE. Chemical analyses: July 1948 to September 1949. 

Water temperatures: August to September 1949. 

Sediment records: August to September 1949.

REMARKS. Records of discharge for water year October 1947 to September 1948 given in Water-Supp

September 1949 given in Water-Supply Paper 1147.

Chemical analyses, In parts per million, July 1948 to Septe

Date of collection

Feb. 8, 1949 

Mar 22 -

Anr an 

Mean 

discharge 

(secondfeet)

161

700

fin A.

448 

212 

737

5 

£17

152

91 9.

in a

M n

8

n

87.7

195 

890 

158 

12ft

Temperature 

(°F)

--

-

68 

71

PH

"

"

8.3 

8.4 

8.4

8.2 

8.2 

8.1 

8.1 

8.1

R.I

Specific 

conductance 

(micromhos at 

25' C)

1,130 

1,230

801 

1,060 

868

1,650 

709

2,510 

2,510 

2,550 

1,650 

2,240

1,970 

2,260 

1,270 

2,760 

1,640 

i . 7an

Silica 

(310,)

--

29

30 

27 

25 

2R

Iron

(Fe)

Calcium 

(Ca)

150 

75 

142

78 

122 

42 

101 

62 

ni

Magnesium 

(Mg)

63 

35 

50

36 

48 

19 

48 

28 

2ft

So- P°- 

dium tas~ 

/ _> slum 

(Na) (K)

339 

239 

285

313 

312 

209 

436 

255 

270

Bicarbonate 

(HCO,)

338 

182 

312

244 

324 

218 

212 

198 

226

Sulfate 

(SOJ

240 

271 

325 

147 

216 

161

172 

147 

408 

660 

557 

525 

384 

384

365 

331 

196 

528 

319 

367

C
ARKANSAS RIVER BASIN Continued

CANADIAN RIVER NEAR AMARILLO, TEX. Continu

Chemical analyses, in parts per million, July 1948 to September 1

Date of collection

Man 1 1Q4Q

tan* t

Sent Sfl .. ... ...

Mean 

discharge 

(secondfeet)

57 

340

228 

56.3 

9,110 

1,290 

514 

215

129 

56.8 

9,440 

2,690 

49.4 

1,700 

278 

136

66.3 

2,010 

138 

55.9

14 4

Temperature

(°F)

74 

70 

69 

69 

84 

68 

70 

73 

72

72 

85 

75 

76 

82 

76 

70 

69

70 

68 

71 

65

PH

8.2 

8.2 

8.2

Specific 

conductance 

(micromhos at 

25" C)

2,190 

1,280 

799 

863 

1,900 

903 

556 

720 

788

1,070 

1,400 

458 

517 

1,760 

484 

789 

1,140

1,330 

965 

1,160 

1,700 

 > am

Silica 

(SiO,)

30 

23 

25 

23 

32 

21 

18 

24 

22

22 

29 

20 

18 

30 

18

Iron 

(Fe)

Calcium 

(Ca)

102 

56 

38

--

Magnesium 

(Mg)

45 

25 

16

So- P°- 

dtam tas~ 

, > slum (Na) (K)

322

179 

114

Bicarbonate 

(HCO,)

223 

212

180

Sulfate 

(SOJ

449 

204 

133 

130 

321 

120 

86 

115 

126

179 

228 

57 

82 

303 

74 

143 

222

263 

205 

240 

379 

395

Ch

ri

(C
ARKANSAS RIVER BASIN 97

ARKANSAS RIVER BASIN--Continued

CANADIAN RIVER NEAR AMARILLO, TEXAS Continued

Temperature (° F) of water, August to September 1949

Day

1 9

91

99

no

March April May June July August

83

75

69

68

69

69

70

'70

71

80

73

72

78

74

69

76

68

78

76

78

67

68

78

74

71

73

September

72

72

70

68

75

76

76

72

68

84

58

67

66

68

72

66

38

72

72

60

64

55

55

68

68

66

67

56

..

68

Suspended sediment, August to September 1949

Day

1 

2 ......

3 

4__.._.

5 ......

6 ...

7 ...

8 ......

9 ......

10 

H ......

12 

13 ......

14 ......

15 

16 ...

17 ......

18 ------

19 ......

20 ------

21 -_...-

82 

23 .. .

24 -----

25 ------

26 

27 ------

28 

29 ......

30 ------

31 

Total -

July

Mean

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

August

Mean

discharge 

(secondfset)

893

2,510

2,000

3,520

1,560

562

465

438

439

196

94

38

292

651

308

656

360

845

478

504

166

82

178

370

160

124

578

256

390

260

256

19, 629

Suspended sediment

Mean 

concentration 

(percent)

0.72

2.95

2.41

2.74

1.95

1.30

.80

1.00

.80

.31

.27

.19

.86

1.29

1.46

2.03

1.30

2.20

2.00

1.85

.82

.62

.83

1.60

1.68

1.51 

1.74

1.08

1.56

1.92

1.82

Tons 

per 

day

1/78, 100

7211,000

/149.000

/264.000

82,100

19,700

10,000

1/13,900

9,480

1,640

685

195

6,780

1/23,000

1/12,800

1/45,400

12,600

1/53,500

25,800

25,200

3,680

1,370

1/8, 200

16,000

7,260

1/5,490 

1/44, 400

1/9,500

16,400

IST'500

1/13,700

1,184,000

September

Mean

discharge 

(secondfset)

114

70

1,520

403

149

70

67

1,310

2,200

1,280

804

1,580

594

310

244

178

140

130

115

115

82

61

52

40

34

24 

22

18

16

14

"

11,756

Suspended sediment

Mean 

concentration 

(percent)

0.75

.47

2.98

2.26

1.10

.30

.13

1.89

2.76

2.40

1.50

3.20

1.92

1.14

.74

.48

.33

.27

.20

.21

.14

.11

.08

.07

.06

.06 

.04

.04

.03

.02

Tons 

per 

day

2,310

888

1/149, 000

1/26, 100

4,430

567

235

1/127, 000

1/172,000

82,900

32,600

1/145,000

30, 800

9,540

4,880

2,310

1,250

948

621

652

310

181

112

76

55

39 

24

19

13

8

794,900

I/Sediment discharge computed by subdividing day.
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR AMARILLO, TEX. Con

Particle-size analyses of suspended sediment, April to S

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipett

W, in distilled water; C, chemically dispersed; M, mechanic

Date

Anir 74 1Q4Q

Skrttf Q

Time

7:55 a. m. 

6:40 a. m. 

6:25 a.m. 

6:20 a.m.

6:30 a. m. 

1:10 p.m. 

12:10 p.m. 

6:15 a.m.

6:00 p. m. 

6:05 a. m. 

6:25 p.m. 

6:15 a.m.

8:05 p.m. 

6:35 a.m. 

5:10 p.m. 

6:35 a. m. 

6:30 p.m. 

7:20 a. m.

Mean 

discharge' 

(secondfeet)

778 

148 

709 

228

1,280 

7,660 

1,300 

691

55 

448 

292 

2,660

893 

196 

504 

578 

256 

2,200

Suspended s

Mean daily 

concentration 

(percent)

1.30 

.28 

.88 

.70

fc

1.52

2/~

.28 

4/~ 

1.42

5/~

6/.72 

.31 

1.85 

7/1.74 

8/1.82 

9/2.76

Weight of 

material 

in tube 

(grams)

0.4103 

.5747 

.8204 

.6763

.7673 

.6641 

1. 6348 

1. 3897

.9624 

.2038 

1.0690 

1.3510

1.4335 

.6317 

1.2440 

1.3940 

.4683 

.6154

Percent fi

0.002

50 

57 

63

52

39 

24

74 

49 

49 

28

20 

62 

45 

22 

35 

27

0.004

20 

64 

75 

84

70

54 

34

91 

66 

66 

40

26 

85 

61 

54 

53 

40

0.008

67 

78 

91 

96

84

63 

45

100 

84 

80 

53

35 

96 

75 

64 

72 

53

0.016

82 

83 

94 

98

87 

70 

68 

57

93 

92 

66

41 

97 

85 

75 

88 

68

I/Discharge, 820 second-feet; concentration 1.52 percent at time of sampling. 

2/Discharge, 7,700 second-feet; concentration 3.95 percent at Ume of sampling. 

3/Discharge, 1,420 second-feet; concentration 3.32 percent at Ume of sampling. 

J/Discharge, 30 second-feet; concentration . 04 percent at Ume of sampling. 

f/Dlscharge, 6,300 second-feet; concentration 3.40 percent at Ume of sampling.

§/Discharge

7/Discharge

8/Discharge

I/Discharge
niton oftoin--t.oniinuea 

CANADIAN RIVER AT BRIDGEPORT, OKLA.

LOCATION. At gnging stntion nt county highwny bridge, n quarter of n mile downstream from Chicag

upstream from Lumpmouth Creek, and 1 mile north of Bridgeport, Cnddo County. 

DRAINAGE AREA. 24,981 squnre miles.

RECORDS AVAILABLE. Chemicnl analyses: October 1948 to September 1949. 

Vnter temperntures: October 1948 to September 1949. 

Sediment records: March to September 1949 (discontinued).

EXTREMES, 1948-49. Dissolved solids: Mnximum, 1,390 pnrts per million Feb. 1-5; minimum, 404 pn

Total hardness: Maximum, 736 parts per million Apr. 29-30; minimum, 226 pnrts per million Feb. 

Water temperatures: Maximum, 84* F June 4; minimum, freezing point on mnny dnys in winter mon

Sediment londs: Maximum, 3,800,000 tons Mny 19; minimum, 1.1 tons Sept. 30.

REMARKS. Sediment records collected at gnging stntion. Records of dischnrge for wnter year Octo

1147. Records-of specific conductance of dnily samples availnble in district office nt Stillw

Cbemlcal analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Nov. 21-22, 26,

Nov. 23-25, 27-28 

J

__ i A 1OJQ

I/Includes equivalen 

2/Includes equivalen

Mean 

discharge 

(secondfeet)

5.85 

4.20 

3.65 

1,203 

489 

284 

126 

27.6,

46.8 

29.6

87.8 

31.5 

24.8 

20.0 

25.9 

171 

604 

136 

tof 7 parts 

t of 10 parti

Temperature 

(*F)

perm 

iper i

PH

8.4

8.2

lllion 

nillioi

Specific 

conductance 

(micromhos at 

25* C)

683 

700 

726 

1,090 

690 

1,550 

1,540 

1,230

1,030 

842

1,320 

901 

859 

662 

953 

1.J070 

1,070 

1,810 

of carbonate 

i of carbonat

Silica 

(810.)

5.0

16

s(COJ. 

aXCO.)

Iron 

(Fe)

0.00 

.00

Calcium 

(Ca)

80 

89 

96 

82 

86 

119 

128 

ISO

140 

108

105 

134 

138 

107 

135 

143 

140 

160

Magnesium 

(Mg)

23 

21 

22 

25 

20 

35 

40 

36

28 

26

32 

33 

28 

29 

32 

37 

29 

50

Sodium 

(Na)

t 

43

1

1 

1

121 

1

Potassium 

(K)

10 

3.7 

15 

L8 

29 

59 

96 

i8

56 

17

9.2 

72 

14 

94 

99 

16 

S3 

31

Bicarbonate 

(HCO,)

211 

229 

231 

177 

120 

198 

235 

282

262 

205

205 

240 

243 

150 

211 

1/195 

165 

2/228

Sulfate 

(SOJ

163 

167 

179 

217 

201 

295 

314 

318

274 

228

331 

300 

299 

291 

319 

347 

369 

464

Ch

ri

(C
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER AT BRIDGEPORT, OKLA. Contin

Chemical analyses, in parts per million, water year October 1948 to Septe

Date of collection

Feb. 1-5, 1949 -

Feb. 11-13, 20 

ITah 91 9A

Apr. 1-2, 10 

May 21-24, 26 

May 25, 27-31 

Mean 

discharge 

(secondfeet)

140 

1,295 

1,701 

3,541 

803 

422 

431 

152 

551

544 

280 

55.6 

76.0 

502 

144 

6,108 

1,641 

18,730 

8,094 

1,042

4,272 

2,897 

1,591 

153 

66.0 

3,181 

274

Temperature 

<°F)

pH

8.0

7.7

Specific 

conductance 

(micromhos at 

25* C)

2,050 

992 

646 

971 

1,470 

1,610 

1,600 

1,700 

1,370

1,000 

1,440 

1,250 

1,000 

1,680 

1,740 

1,180 

1,660 

1,140 

837 

1,230

1,120 

1,130 

1,090 

1,090 

608 

1,110 

i.n«n

Silica 

(SiO,)

IT 

11

Iron 

(Fe)

0.00 

.no

Calcium 

(Ca)

168 

88 

66 

83 

120 

143 

130 

148 

134

106 

150 

152 

148 

198 

155 

97 

117 

98 

96 

116

107 

68 

74 

84 

64 

90 

72

Magnesium 

(Mg)

SI 

24 

15 

23 

36 

39 

42 

43 

39

30 

42 

33 

39 

59 

45 

29 

37 

30 

23 

33

28 

23 

25 

25 

17 

24 

19

Sodium 

(Na)

Potassium 

(K)

265 

105 

52 

99 

169 

172 

167 

170 12 

126

73 

120 

84 

29 

105 

179 

126 

203 

112 

54 

109

102 

137 

116 

113 7.8 

40 

109 

123 8. 8

Bicarbonate 

(HCO,)

3/292 

151 

128 

188 

201 

1/228 

222 

242 

176

155 

210 

243 

247 

153 

37186 

168 

204 

187 

169 

191

179 

186 

179 

176 

153 

167 

185

Sulfate 

(SOJ

520 

241 

142 

195 

349 

379 

332 

391 

407

276 

405 

351 

335 

596 

464 

270 

347 

265 

209 

303

289 

205 

200 

241 

144 

249 

216

Ch

ri

(C

I/Includes equivalent of 6 parts per million of carbonate (CO.). 

4/Includes equivalent of 13 parts per million of carbonate (CO,).
Aug. 1, 5-6, 9-10 

Weighted average 

741 

696 

159 

7.52 

51.7

466 

429 

414 

65.2 

5.62

942

8.2 

8.0

--

1,080 

1,320 

1,000 

753 

1,280

879 

1,190 

1,310 

1,240 

893

1,130

8.5 

11

--

0.00 

OS

--

64 

64 

63 

92 

86

66 

78 

80 

88 

116

96

21 

21 

20 

23 

26

21 

27 

24 

26 

23

27 1

141 

181 

121 | 11 

38 

158

93 

139 

177 | 11 

147 

55

112

180 

189 

180 

206 

198

141 

142 

191 

212 

267

180

218 

251 

200 

197 

277

212 

284 

260 

265 

222

259
ARKANSAS RIVER HAS ID Continu

CANADIAN RIVER AT BRIDGEPORT, OKLA

Temperature (° F ) of water, water year October 194

Day

12 -

14 . . _ __

91

99

24 . _____

9ft

no

October November December

38

<3«

34

<3«

January

"*"

o*

o*

0«

o«

34

February

~~

March

53

Ap
ARKANSAS RIVER BASIN 

ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER AT BRIDGEPORT, OKLA.--Continued 

Suspended sediment, March to September 1949

103

Day

5 

10 

19

1 A

21

22

9C

29 

30 

31 -

Total -

15 

1 A

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

Mean 

discharge 

(secondfeet)

741 

558 

570 

328 

284

221 

185 

166 

207 

334

166 

90 

65 

52 

49

40 

24 

21 

24 

25

26 

28 

19 

18 

18

23 

160 

316 

484 

520

5,762

Suspended sediment

Mean 

concentration

April

1/5,200 

1/4, 000 

1/4,000 

2,300 

1/2, 000

1/1,400 

1,100 

1/1, 000 

1/1,300 

1/3,000

1,500 

1/900 

1/700 

1/600 

1/550

1/450 

1/300 

1/300 

1/300 

1/300

1/300 

278 

1/250 

1/250 

1/250

1/300 

1/1,560 

1/4, 240 

4,920 

1/2,500

-

Tons 

per 

day

12,000 

6,030 

6,160 

2,040 

1,530

835 

550 

448 

726 

2,700

672 

219 

123 

84 

73

49 

19 

17 

19 

20

21 

21 

13 

12 

12

19 

675 

1,600 ' 

3,770 

3,510

43, 970

Mean 

discharge 

(secondfeet)

372 

143 

120 

104 

72

52 

4,130 

9,020 

5,720 

5,560

3,340 

2,180 

1,530 

1,340 

1,500

570 

1,030 

15,900 

27,400 

12,900

21,700 

6,240 

3,640 

6,370 

1,390

2,520 

1,160 

1,000 

1,230 

864 

608

139,205

Suspended sediment

Mean 

concentration

May,

1/1,900 

850 

1/770 

1/720 

1/580

489 

1/34, 600 

23, 000 

20, 100 

21, 500

15,800 

11,100 

1/8,800 

1/8,200 

1/8, 600

5,000 

1/9,100 

52,000 

51,300 

33,900

50,000 

20, 400 

1/17,700 

1/22, 400 

7,800

1/13,800 

5,850 

1/5, 810 

1/6, 380 

1/4, 800 

3,330

-

Tons 

per 

day

1,910 

328 

250 

202 

113

69 

385, 000 

560,000 

310,000 

323, 000

143, 000 

65, 400 

36, 300 

29, 600 

34,800

7,690 

25, 300 

2,230,000 

3, 800, 000 

1, 180, 000

2,930,000 

343,000, 

174,000 

385, 000 

29,200

94,300 

18,300 

15, 700 

21, 200 

11, 200 

5,470

13,160,000

March

Mean 

discharge 

(secondfeet)

170 

158

198 

273 

259 

284 

1,830 

1,610

4,782

734 

441 

340 

1,740 

10, 800

10, 700 

4,980 

2,800 

4,200 

5,980

4,080 

2,520 

2,180 

5,050 

6,980

3,470 

1,940 

1,220 

758 

770

746 

536 

615 

1,450 

2,060

3,220 

3,650 

2,040 

1,020 

576

87,596

Suspended sediment

Mean 

concentration 

(ppm)

1,700 

1/1,700

1/1,700 

1/2, 600 

1/2,600 

3,100 

25,100 

13,600

Tons 

per 

day

780 

725

909 

1,920 

1,820 

2,380 

124,000 

59,300

191,800

June

1/4,200 

1/1,750 

1,050 

1/38, 500 

1/35, 000

26, 200 

1/10, 600 

7,300 

1/16, 300 

17, 100

1/16, 500 

1/16,500 

15,700 

1/20,200 

30,800

1/12, 500 

7,000 

1/7,000 

1/7,000 

6,890

1/6,000 

1/5,050 

1/6, 580 

1/8,500 

1/11,3001

1/14, 600 

14,600 

1/10, 400 

1/8,000 

5,880

-

8,310 

2,080 

964 

181,000 

1, 020, 000

757, 000 

143, 000 

55,200 

185, 000 

276, 000

182, 000 

112, 000 

92,300 

275, 000 

581, 000

117,000 

36,600 

23,000 

14,300 

14,300

12,100 

7,310 

10,900 

33,360 

63,000

127,000 

144,000 

57,200 

22,000 

9,150

1,562,000

I/Estimated or Interpolated.

256683 O - 53 - 8
104 LOWER MISSISSIPPI 'RIVER BASIN

ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER AT BRIDGEPORT, OKLA. Continued

Suspended sediment, March to September 1949 Continued

Day

4. --. 

5 ......

8 -

15 ......

1 fi

22 

oq

26 .... 

27 

28 ......

29 

30 

31 ......

Total -

July

Mean 

discharge 

(secondfeet)

415 

266 

173 

129 

85

55 

31 

47 

66 

173

168 

173 

190 

3,310 

7,870

5,120 

2,140 

5,230 

5,990 

1,620

1,090 

650 

450 

300 

201

112 

80 

48 

30 

23 

25

36,260

Suspended sediment

Mean 

concentration

1/4,550 

1/3, 780 

1/3, 170 

1/2,700 

1,750

1/950 

1/430 

760 

1/1,200 

1/1, 800

1/1,800 

1,800 

1/2, 000 

1/22, 500 

25,500

1/16, 800 

1/10, 800 

1/22, 700 

1/22,300 

1/15,000

11, 500 

1/12, 000 

1/12, 000 

1/12, 000 

12,000

1/5,400 

1/3,500 

1/1, 700 

945 

1/800 

1/800

Tons 

per 

day

5,100 

2,710 

1,480 

940 

402

141 

36 

96 

214 

841

816 

841 

1,030 

201, 000 

542,000

260, 000 

62, 400 

320, 000 

361, 000 

65, 600

33, 600 

21, 100 

14, 600 

9,720 

6,510

1,630 

760 

220 

77 

50 

54

1,915,000

August

Mean 

discharge 

(secondfset)

28 

256 

132 

112 

108

250 

940 

2,040 

1,760 

1,560

715 

272 

164 

112 

103

88 

51 

39 

27 

19

13 

9.0 

6.0 

5.0 

4.6

62 

91 

43 

35 

32 

47

9, 123. 6

Suspended sediment

Mean 

concentration

1/800 

1/3,860 

1/2, 740 

1/2,500 

1/2,440

1/3, 700 

1/6,750 

1/10, 500 

1/9,600 

1/8,950

3,950 

1/2,900 

1/2,500 

1/2,400 

2,380

1/2, 120 

1/1, 330 

1/1,020 

1/690 

1/460

1/290 

1/170 

1/150 

1/100 

1/100

2,940 

1/3,200 

1/1,900 

1/1,650 

1,500 

1/2, 000

--

Total discharge for period Mar. 24 to Sept. 30 (second-foot-days) 

Total load for period Mar. 24 to Sept. 30 (tons) 

Tons 

per

day

60 

2,670 

976 

756 

712

2,500 

17, 100 

57,800 

45,600 

37, 700

7,630 

2,130 

1,110 

726 

662

504 

183 

107 

50 

24

10 

4.1 

2.4 

1.4 

1.2

492 

786 

220 

156 

130 

254

181, 057. 1

September

Mean

discharge 

(secondfeet)

103 

78 

714 

749 

1,120

308 

88 

582 

570 

201

182 

78 

342 

942 

677

225 

94 

931 

432 

240

170 

73 

35 

28 

20

9.0 

5.6 

4.9 

4.5 

4.1

9, 010. 1

Suspended sediment

Mean 

concentration

1/2,380 

1/1, 930 

1/6, 070 

1/6,000 

1/7, 400

4,870 

1/2, 110 

5,230 

1/6,000 

1/6,000

1/6,000 

7,420 

1/5, 340 

1/17,000 

14,400

1/6,000 

1/2,220 

1/14, 200 

10,900 

1/7,100

1/5,600 

2,960 

1/1,300 

I/I, 000 

1/700

1/200 

1/150 

1/100 

1/100 

1/100

 20

Tons 

per 

day

662 

406 

11,700 

12,100 

22,400

4,050 

503 

8,220 

9,240 

3,260

2,950 

1,560 

4,930 

43,300 

26,300

3,640 

564 

35, 700 

12,700 

4,600

2,570 

584 

123 

76 

38

4.9 

2.3 

1.3 

1.2 

1.1

212,185.8

291,738.7 

270. 000

I/Estimated or Interpolated.
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR WHITEFIELD, OKU.

LOCATION. At bridge on State Highway 10, 2 miles above recorder, Si miles upstream from Snake C

Whitefield, Haskell County.

DRAINAGE AREA. 17,486 square miles above gaging station. 

RECORDS AVAILABLE.--Chemical analyses: September 1944 to February 1945, September 1946 to Septe

Water temperatures: September 1944 to February 1945, September 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 8,570 parts per million Jan. 21-24; minimum, 308 

Total hardness: Maximum, 1,810 parts per million Jan. 21-24; minimum, 122 parts per million J

Water temperatures: Maximum, 85° F July 2, 10-12; minimum, freezing point Dec. 31, Jan. 1, 2

EXTREMES, 1944-45, 1946-4*9. Dissolved solids: Maximum, 8,570 parts per million Jan. 21-24, 194

Total hardness: Maximum, 1,810 parts per million Jan. 21-24, 1949; minimum, 18 parts per mill

Water temperatures: Maximum, 88 F Sept. 4, 1944; minimum, freezing point on many dnys in wi

REMARKS. Records of discharge for water -year October 1948 to September 1949 given in Water-Supp

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Dec. 11, 14, 19 

Dec. 12-13, 18, 20 

Jan. 1-10, 1949 

Jan. SO-S1 

Mean 

discharge 

(secondfeet)

252 

222 

211 

226 

232 

529 

436 

293

324 

595 

667 

1,585 

1,860 

619 

522

342 

428 

1,059 

5,187 

5,560 

4.395

Temperature 

CF)

pH

8.2 

8.0 

7.7

7.7

Specific 

conductance 

(micromhos at 

25* C)

6,080 

5,540 

6,200 

6,420 

7,210 

4,140 

6,550 

8,680

9,870 

11,000) 

8,600 

5,580 

3,020 

6,940 

10,800

9,700 

10,500 

13,100 

5,770 

1,830 

1.010

Silica 

(810.)

4.0 

2.0 

12

8.0

Iron 

(Fe)

0.20 

.00 

.00

00

Calcium 

(Ca)

240 

219 

248 

252 

282 

182 

272 

337

372 

426 

332 

207 

110 

260 

414

370 

397 

516 

216 

78 

SS

Magnesium 

(Mg)

82 

65 

70 

69 

79 

55 

74 

92

105 

113 

90 

60 

33 

70 

110

99 

97 

127 

52 

17 

9.5

Sodium 

(Na)

1,090 

1, 

1, 

1,110 

1,

1,120

1, 

2,

1,

1, 

2,

1, 

1,810 

2, 

1,

Potassium 

(K)

43 

070 

230 

19 

440 

833

r "

610

850 

100 

580 

985 

481 

320 

100

970 

32 

310 

070 

267 

171

Bicarbonate 

(HCO.)

204 

192 

192 

162 

166 

177 

190 

159

138 

138 

149 

97 

100 

144 

181

177 

185 

182 

134 

72 

55

Sulfate 

(SOJ

,45 

40 

37 

36 

41 

217 

145 

95

74 

82 

73 

68 

73 

69 

76

66 

62 

69 

67 

20 

2fi

C

r

(

2

2

2

2

2

2

3

3

4

3

2

4

3

3

5

2
ARKANSAS RIVER BASIN Continued

CANADIAN RIVER NEAR WHITEFIELD, OKIA. Cont

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Feb. 1-2, 1949 

Feb. 21-22, 26-28 

Mar. 22, 24-26, 28,

Mar 27 29

Uai> 54 41

Apr. 11-13, 18-20 

Aor. 24-30 .........

Mean 

discharge 

(secondfeet)

2,240 

4,783 

10, 510 

10,900 

22, 280 

20,410 

14, 190 

18,300

6,920 

5,532 

3,288 

2,010 

6,440

14,870 

15,490 

13,510

3,370 

6,612 

5,198 

1,637 

2 1»7

Temperature 

(°F)

PH

"

Specific 

conductance 

(micromhos at 

25° C)

1,040 

2,260 

1,650 

3,910 

1,170 

871 

945 

1,310

1,280 

2,260 

3,150 

4,740 

4,570

1,370 

880 

1,900

2,840 

2,440 

1,690 

2,840 

a HI n

Silica 

(SiO,)

--

Iron 

(Fe)

--

Calcium 

(Ca)

44

93 

72 

159 

58 

44 

45 

59

59 

95 

139 

206 

198

61 

42 

80

128 

117 

80 

127

14R

Magnesium 

(Mg)

12 

24 

18 

35 

16 

12 

13 

15

15 

27 

40 

61 

59

17 

9.5 

24

37 

28 

20 

47

KA

Sodium 

(Na)

Potassium 

(K)

166 

389 

242 

641 

142 

114 

130 

185

186 

342 

471 

696 

732

190 

120 

267

408 

362 

260 

390

KJR

Bicarbonate 

(HCO.)

82 

102 

103 

103 

111 

81 

85 

90

95 

129 

166 

204 

1/196

90 

Tf 

101

166 

146 

138 

2/184

14R

Sulfate 

(SOJ

21 

32 

36 

41 

48 

25 

25 

' 33

27 

44 

92 

97 

104

34 

21 

40

91 

71 

61 

86

79

C

r

(

1

1

1

1 

I/Includes equivalent of 10 parts per million of carbonate (CO,). 

2/Includes equivalent of 12 parts per million of carbonate (CO,).
 ? i , 

May 11-16, 18 

June 12-13, 19-20 J

ima 14 1ft_ _

July 11, 17-18 

July 12, 14-16 

July 13, 19-20 

Julv SI -31 .-

20,150

19,410

33,150 

52,040

11,790

8,424

3,165

2,340 

1,825 

3,367 

a. $27 8.0

2,280

974

1,550

1,300

2,230

495

705

827

2,010

947

587

960

1,560

1,400

1,870

3,480

4,650

3,180

2,290

2,320

96

73

51

74

114

38

53

57

100

54

40

_59

64

78

101

156

164

181

113

in

36

18

13

20

50

7.8

13

14

24

13

10

16

32

31

29

44

57

39

33

29

351

335

134

173

305

64

70

93

285

100

13

113

203

162

252

520

847

498

333

330 1 14

111

109

103

132

158

108

130

141

145

138

104

150

174

175

194

198

174

1/1M

191

189

30

33

22

98

113

19

47

53

58

51

37

59

78

97

76

66

57

52

146

133

I/Includes equivalent of 7 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR WHITEFIEU), OK1A. Conti

Chemical analyses. In parts per million, water year October 1948 to Sept

Date of collection

Aug. 1-3 , 1949 - 

Aug. 4-5, 7 

Aug. 11-12, 15, 17-18 

Aug. 13-14, 16 

Aug. 21-34, 26-31 

Aug. 25 ---

Sept 1-10 ----- 

Sept. 11, 14, 18 

Sept. 12-13, 16-17 

Sept. 15, 19-20 

Sept. 29-30 ------ 

Weighted average -

Mean 

discharge 

(secondfeet)

1,373 

958 

854 

937 

1,600 

1,245 

580 

585

363 

4,570 

4,495 

4,650 

2,435 

1,035 

802

7,985

Temperature

(°F)

PH

--

Specific 

conductance 

(micromhos at 

25* C)

2,560 

3,140 

4,190 

3,550 

2,720 

5,300 

5,350 

9,220

5,930 

3,010 

5,250 

1,600 

1,520 

2,390 

3,040

1,380

Silica 

(SiO.)

--

Iron 

(Fe)

 

Calcium 

(Ca)

118 

130 

163 

141 

114 

194 

188 

328

209 

118 

194 

66 

67 

102 

126

71

Magnesium 

(Mg)

32

38 

49 

46 

37 

62 

59 

99

66 

33 

56 

17 

17 

28 

36

18

Sodium 

(Na)

Potassium 

(K)

436 

470 

652 

538 

399 

809 

886 

1,610

994 

451 

865 

223 

211 

346 

452

196

Bicarbonate 

(HCO.)

390 

180 

168 

173 

177 

150 

157 

145

168 

127 

112 

98 

96 

136 

156

123

Sulfate 

(SOJ

107 

100 

75 

109 

173 

109 

77 

76

60 

58 

93 

36 

47 

91 

97

49

C

r

(

3
Temperature (* F ) of water, water year October 

Day

1 ...................

8 .«

18

24 -- - 

AD

29 ---

October

60 

64 

64 

61 

61

61 

60 

55 

57 

62

60 

64 

57 

60 

60

70 

54 

57 

49 

55

58 

55 

55 

53 

56

55 

55 

54 

57 

64

58

November

67 

63 

57 

60 

56

50 

48

50 

45

45 

53 

47 

48 

50

50 

50 

46 

40

46 

40 

38 

44 

50

49 

47 

46 

38 

39

49

December

39 

47

52 

42 

40 

37 

36

43 

52 

51 

62 

61

52 

50 

52 

45 

42

40 

46 

40 

45 

40

36 

35 

47 

37 

33 

32

44

January

32 

35 

53 

44 

34

36 

38 

44 

56 

42

40 

38

47 

55

47 

35 

38 

38 

38

38 

39 

50 

42 

35

38 

34 

34 

32 

32 

34

40

February

34 

34 

34 

37 

33

38 

36 

42 

38 

38

40 

50 

47 

44 

40

40 

40 

44 

47 

48

48 

47 

47 

48

47 

50

42

March

45 

44 

45 

51 

55

53 

50 

54

45

45 

49 

47 

47 

46

47 

53 

45 

45 

53

54 

52 

54 

58 

52

60 

55 

56 

58 

64 

56

51
ARKANSAS RIVER BASIN Continued 

VERMEJO RIVER NEAR DAWSON, N. HEX.

LOCATION.--Samples for chemical quality collected at gaging station in Maxwell Grant, 2i miles no

collected at bridge in Dawson, 2i miles downstream from gaging station. 

DRAINAGE AREA. 299 square miles. 

RECORDS AVAILABLE. Chemical analyses: August 1945 to August 1949.

Water temperatures: April to September 1949.

Sediment records: January to September 1949.

EXTREMES.--1948-49. Sediment loads: Maximum, 94,500 tons per day Sept. 9; Minimum, 0 tons per d

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

Chemical analyses, In parts per million, October 1948 to 

Date of collection

O**t fl IQAft

Jan. 14, 1949 

Discharge 

(secondfeet)

4.75 

4.06 

7.67 

8.00

7.04 

3.63 

2.90 

2.60

25.5 

34.4

pH

Specific 

conductance 

(micromhos at 

25" C )

491 

553 

572 

466

520 

532 

557 

391

437 

400 

422 

468

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

54 

73

68

Magnesium 

(Mg)

15 

18

16

Sodium 

(Na)

Potassium 

(K)

28 

26

29

Bicarbonate 

(BCD,)

186 

210 

201 

163

185 

184 

183 

153

162 

163 

167 

180

Sulfate 

(SO,)

95

lie

135 

107

123 

127 

135 

72

91 

76 

79 

98

Chl

(
ARKANSAS RIVER BASIN

ARKANSAS RIVER BASIN--Continued

VERMEJO RIVER NEAR DAWSON, N. HEX. Continued

Temperature (°F) of water, April to September 1949

Day

I ...................

12

Oft

no

29

March April

--

59

57

61

58

May

61

57

60

60

59

fi9

ne

73

AQ

June

68

53

fi9

AQ

75

no

nn

nti

nn

75

July

76

no

ne

73

nn

no

no

no

no

on

August

75 

75

nO

71

7O

nti

75

nn

nn

nG

September

70

70

71

fi9

A9

Suspended sediment, January to September 1949

Day

1 ......

2 ......

3 ......

4 ------

5 ----- -

6 ......

7 ...

8 

9 ...

10 -

11 ......

12 --_- 

13 

14 ......

15 ......

16 ----- -

17 ....

18 ......

19 ...... 

20 ------

21 

22 ------ 

23 

24 ------ 

25 ------

26 

27 ------

28 ------ 

29 ------

30 

81 

TotalJanuary

Mean 

discharge 

(secondfeet)

_

_

_

_

_

_

_

_

_

_

._

_

_

_

_

4.3 

3.9

3.3

2.9

14.4

Suspended sediment

Mean 

concentration 

(percent)

..

_

_

_

..

_

_

_

--

..

_

_

_

--

_

_

_

::

..

--

0 

0.02

0

.0

Tons 

per 

day

..

_.

._

_

__

_

_

_

--

__

_

_

._

--

_

_

_

::

..

-

0

1

0

0

1

February

Mean 

discharge 

(secondfeet)

2.7

2.9

3.1

4.3

4.7

4.5

4.5

4.3

4.1

4.3

5.2

5.6

6.7

6.3

4.5

4.3

5.2

6.5

7.2 

8.8

11 

10 

9.9 

9.0 

10

8.5 

5.8

6.0

_

-.

169.9

Suspended sediment

Mean 

concentration 

(percent)

0

0

0

0

0

0

0.01

0.01

0.01

0.01

0.01

0

0.01

0.02

0.02

0.02

0.11

0.10

1/0.08 

0.06

1/0.10 

1/0.09 

1/0.08 

1/0.07 

3/0.08

1/0.06 

1/0.04

1/0.02

_

..

Tons 

per 

day

0

0

0

0

0

0

1

1

1

1

1

0

2

3

2

i

15

18

16 

14

30 

24 

21 

17 

22

14

6

3

__

..

214

March

Mean 

discharge 

(secondfeet)

7.5

7.7

7.0

6.5

6.5

6.3

6.3

6.0

5.4

3.1

2.9

2.3

2.1

2.0

1.8

1.6

1.2

1.0

.9 

1.3

3.5 

3.7 

3.7 

3.3 

3.1

3.5 

3.1

2.9 

2.7

2.7

3.5

115.1

Suspended sediment

Mean 

concentration 

(percent)

0.01

.01

.02

.01

.02

.02

.02

0

0

0

0

0

0

0

0

0.01

0

0.01

0 

0.01

0. tfl 

0 

0 

0

0 

0

0 

0

0

0

Tons 

per 

day

2

2

4

2

4

3

3

0

0

0

0

0

0

0

0

0

0

0

0 

0

0 

1 

0 

0 

0

0 

0

0 

0

0

0

21

I/Estimated.
112 LOrfER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN Continued 

VERMEJO RIVER NEAR DAWSON, N. MEX.--Continued 

Suspended sediment, January to September 1949--Continued

Day

19 

20 ------

25 ------

9fl

30

31

Total1 

g

Ifi

1Q

23 

24 ------ 

25 ------ 

26 ...... 

27 ----- - 

28 ------ 

29 ----- - 

30 ------ 

31 ------

TotalApril

Mean 

discharge 

(secondfeet)

3.5 

3 9 

s!2 

4.9 

4.9 

4.5 

3.7 

3.1 

7.0 

4.7 

3.3 

3.7 

2.9 

2.1 

1.6 

1.8 

2.0 

2.7 

3.5 

3.7

3.1 

2.5 

2.9 

11.0 

20.0 

22.0 

26.0 

28.0 

25.0 

25.0

238.2

Suspended sediment

Mean 

concentration 

(percent)

0 

0 

.01 

0 

.01 

.01 

.01 

.01 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.01 

.02 

.02 

.02 

.12 

.01 

.01 

.01 

.01 

.01

Tons 

per 

day

0 

0 

1 

0 

1

1 

1 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

6 

65 

6 

7 

8 

7 

7

110

July

25 

39 

30 

28 

28 

25 

23 

28 

44 

36 

85 

69 

48 

64 

36

28 

24 

31 

20 

22 

23 

38 

88 

54 

116

106 

59 

40 

41 

93 

113

1,504

0.07 

I/. 15 

I/. 09 

.05 

I/. 03 

.01 

.01 

I/. 01 

.23 

.13 

.27 

.12 

!/. 10 

.27 

.13 

I/. 06 

I/. 02 

.18 

.06 

.03 

.02 

.30 

.94 

.08 

.60

1.0 

.50 

V- 15 

.10 

.60 

.61

47 

158 

73 

38 

23 

7 

6 

8 

2/390 

2/369

2/729 

224 

130

2/652 

2/214

45 

13 

2/288 

32 

18

12 

2/514 

2/2,500 

117 

2/3,460

2/3,400 

796 

162 

1,110 

2/3,040 

2/2,640

21, 220

May

Mean

charge 

(secondfeet)

24 

21 

22 

26 

27

30 

38 

33 

28 

28 

37 

46 

51 

47 

50

63 

55 

38 

35 

30

28 

26 

23 

23 

22 

22 

24 

35 

40 

33 

28

1,033

Suspended sediment

Mean 

concentration 

(percent)

0.04 

0 

0 

0 

.02

.02 

.01 

.02 

.01 

.01 

.01 

.01 

.01 

.13 

.14

.14 

.01 

.11 

.07 

!/. 03

0 

0 

0 

0 

0 

 0 

0 

0 

0 

0 

0

--

Tons 

per 

day

26 

0 

0 

0 

7 

16 

10 

9 

8 

8 

10 

12 

14 

165 

189

238 

15 

113 

66

24

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

930

August

47 

40 

84 

72 

51 

41 

40 

31 

40 

38

35 

30 

32 

28 

24

22 

32 

30 

23 

20

27 

18 

17 

16 

18

23 

18 

16 

15 

14 

14

956

0.22 

.10 

.68 

.55 

V.30 

I/. 25 

.23 

.06 

.30 

.04

.02 

.01 

.01 

.01 

.02

.01 

.07 

.05 

.01 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

..

Total discharge for period Jan. 28 to Sept. 30 (second-foot-days) 

Total load for period Jan. 28 to Sept. 30 (tons) . . . ____ ..

279 

108 

2/2, 430 

2/2,700 

413 

277 

248 

50 

324 

41

19 

8 

9 

8 

13

6 

2/75 

40 

6 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

7,050

June

Mean

charge 

(secondfeet)

30 

27 

24 

31 

30

49 

42 

51 

50 

48 

53 

48 

53 

50 

41

36 

34 

39 

82 

62

55 

100 

89 

59 

52 

46 

42 

45 

32 

25

1,425

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.01 

.02 

.01 

.01 

.18 

.05 

I/. 04 

.02 

.02 

.02 

.02 

.02 

.01 

.01

.01 

.01 

.14 

1.57

.15

.32 

1.45 

.50 

.03 

.02 

.01 

.01 

.15 

.14 

.08

Tons 

per 

day

16 

7 

13 

8 

8

2/309 

2/68 

55 

27 

26 

29 

26 

29 

13 

11

10 

9 

2/294 

2/4,220 

251 

2/734 

2/4,520 

2/1,460 

48 

28 

12 

11 

2/310 

121 

54

12.730

September

18 

18 

15 

13 

12 

12 

12 

25 

374 

89

16 

12 

11 

10 

11

11 

11 

9.3 

8.5 

8.0

7.7 

7.5 

7.2 

7.2 

7.2

7.2 

7.2 

7.2 

7.5 

8.5

770.2

0 

.08 

.02 

.14 

.14 

.04 

.07 

.19 

3.16 

3.98

V. 60 

!/. 10 

I/. 05 

.02 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

.01 

0 

0 

0

0 

39 

8 

49 

45 

13 

23 

2/335 

2/94,500 

2/12,300 

259 

32 

15 

5 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

 19 

0 

0 

0

107.600

. _ __________________ 6,225.8

. _____________________ . 149, 900

I/Estimated.

2/Sediment discharge computed by subdividing day.
ARKANSAS RIVER BASIN Continued 

VERMEJO RIVER NEAR DAWSON, N. HEX. Cont

Particle -size analyses of suspended sediment, June to Se

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

W, in distilled water; C, chemically dispersed; M, mechan

Date

 km* 0 mmmmmmmm

qnnf n

Time

11:00 a.m. 

3:10 p.m. 

1:45 p.m.

4:00 p.m. 

10:40 a.m. 

10:20 a.m.

5:45 p. m. 

6:25 p.m. 

7:45 a. m.

Mean 

discharge 

(secondfeet)

42 

82 

25

31 

113 

51

25 

374 

89

Suspended 

Mean dally 

concentration 

(percent)

0.05 

1/1.57 

.08

.18 

.61 

.30

.19 

2/3.16 

3/3.98

Weight of 

material 

in tube 

(grams)

1. 7774 

1.7146 

0. 3229

0. 8841 

0.2509 

2.1188

.9592 

.9481 

.5699

Percent 

0.002

41 

10 

44

65 

23 

31

11 

7 

14

0.004

55 

12 

54

94 

36 

50

16 

10 

20

0.008

70 

17 

65

99 

45 

69

22 

13 

28

0.016

78 

22 

75

99 

52 

83

32 

19 

38

I/Discharge, 90 second-feet. Concentration, 2.23 percent at time of sampling. 

^/Discharge, 1,900 second-feet. Concentration, 10.4 percent at time of sampling. 

^/Discharge, 120 second-feet. Concentration, 5.47 percent at time of sampling.
ARKANSAS RIVER BASIN Continued 

CIMARRON RIVER AT UTE PARK, N. HEX.

LOCATION At gnging station half n mile downstream from Dte Creek and about 1 mile east of post o

DRAINAGE ARM 297 square miles.

RECORDS AVAILABLE Chemical analyses: Juae 1945 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 212 parts per million, Nov. 1-10; minimum, 126 pa

Total hardness: Maximum, 158 parts per million Nov. 1-10; minimum, 88 parts per million May 11

EXTREMES,1945-49. Dissolved solids: Maximum, 212 parts per million Nov. 1-10, 1948; minimum, 10

Total hardness: Maximum, 158 parts per million Nov. 1-10, 1948; minimum, 72 parts per million 

REMARKS; Records of discharge for water year October 1948 to September 1949 givea ia Water-Suppl

samples available in district office at Albuquerque, N. Mex.

Chemical analyses, In parts per million, water year October 1948 to 

Date of collection

Oct. 2-10, 1948 

Oct. 11-17, 19-20 

Dec. 1, 4, 7-10 

Jan. 1-10, 1949 

May 21-24, 26-31 

Mean 

discharge 

(secondfeet)

36.0 

33.5 

34.5 

16.4 

7.71 

7.48

7.08 

6.16 

7.35 

6.60 

5.99 

5.61

6.35 

6.71 

4.45 

4.77 

6.23 

15.2

10.6 

11.9 

47.7 

(ft.JB 

50.3 

49.4

Temperature 

(°F)

PH

7.8 

7.8 

7.6 

7.6 

7.7 

7.7

8.1 

8.0 

8.0 

7.2 

7.6 

7.8

7.9 

7.9 

7.9 

7.8 

7.8 

7.8

7.8 

8.1 

7.8 

7.8 

7.6 

7.8

Specific 

conductance 

(micromhos at 

25* C)

319 

329 

336 

350 

327 

350

319 

298 

293 

300 

304 

299

307 

293 

307 

327 

314 

294

271 

247 

232 

227 

203 

256

Silicn 

(SiO.)

19 

16 

15 

17 

15 

16

15 

16 

17 

13 

16 

15

15 

14 

14 

13 

14 

14

14 

14 

13 

13 

13 

12

Iron 

(Fe)

0.01 

.01 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.04 

.03 

.04

.01 

.01 

.01 

.01 

.03 

.04

.03 

.03 

.05 

.04 

.05 

.02

Calcium 

(Ca)

43 

44 

44 

45 

44 

43

43 

39 

39 

39 

40 

39

40 

39 

42 

44 

42 

39

36 

33 

31 

30 

26 

34

Magnesium 

<Mg)

9.0 

9.9 

10 

11 

10 

10

9.3 

8.8 

8.3 

8.7 

8.8 

9.0

8.9 

7.9 

8.4 

8.6 

8.3 

7.9

7.6 

6.7 

6.2 

6.4 

5.6 

7.3

Sodium 

(Na)

12 

12 

12 

13 

12 

13

11 

11 

10 

10 

11 

11

11 

11 

11 

12 

11 

9.3

9.4 

8.1 

7.6 

7.2 

6.9 

9.2

Potassium 

(K)

1.8 

2.4 

4.0 

3.0 

3.2 

3.0

1.8 

1.8 

1.8 

5.4 

4.0 

4.0

2.6 

2.0 

1.6 

1.8 

4.8 

4.6

4.2 

4.2 

4.0 

4.0 

3.8 

2.2

Bicarbonate 

(HCO.)

178 

184 

181 

188 

176 

175

176 

169 

162 

159 

163 

163

166 

162 

165 

169 

165 

156

147 

132 

124 

125 

110 

140

Sulfate 

(SOJ

16 

18 

21 

23 

24 

25

19 

16 

16 

20 

21 

18

18 

17 

22 

27 

24 

17

16 

15 

13 

13 

12 

14

Ch

ri

(C
July 1-7, 9-10 

July 11-16, 18-20 

Weighted average 

112 

79.1 

50.2 

46.1 

68.4 

65.2

43.9 

30.3 

28.9 

36.3 

36.3 

19.2

29.7

7.8 

7.8 

7.3 

7.4 

7.5 

7.3

7.3 

7.4 

7.4 

7.3 

7.4 

7.6"

289 

273 

293 

296 

292 

267

300 

320 

319 

318 

311 

312

286

12 

11 

12 

8.8 

11 

11

12 

12 

11 

12 

12 

11

13

.04 

.01 

.03 

.03 

.03 

.02

.01 

.01 

.01 

.01 

.01 

.02

0.03

39 

37 

40 

39 

38 

36

42 

44 

44 

44

43 

43

38

8.6 

7.8 

8.6 

8.6 

8.6 

7.7

8.4 

8.9 

9.0 

9.0 

9.2 

9.0

8.2

10 

9.6 

9.2 

10 

9.5 

8.7

9.8 

11 

11 

11 

11 

11

9.8

2.4 

2.4 

3.6 

3.6 

3.4 

3.6

3.6 

4.2 

4.2 

3.8 

3.8 

3.2

3.6

161 

150 

162 

163 

161 

148

168 

179 

181 

181 

180 

180

158

15 

14 

16 

15 

14 

15

18 

16 

15 

15 

15 

15

16
116 LOWER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN Continued 

HORA RIVER AT LOMA PARDA, N. HEX.

LOCATION. At county road bridge at Loma Parda, Mora County, about 5 miles below Coyote

Creek.

DRAINAGE AREA. 530 square miles (at gaging stations, see REMARKS). 

RECORDS AVAILABLE. Water temperatures: April to September 1949.

Sediment records: January to September 1949.

EXTREMES, 1948-49. Water temperatures: Maximum, 88° F July 7; minimum, 50° F May 6. 

Sediment loads: Maximum, 11,900 tons per day July 22; minimum, less than one ton per

day on several days. 

REMARKS. Records of discharge for January to September 1949 are summations of records

for Mora River near Golondrinas, N. Mex. and Coyote Creek near Golondrinas, N. Mex.,

which are given in Water-Supply Paper 1147. No appreciable inflow between stations

and sampling point except during periods of heavy local rains.

Temperature (° F) of water, April to September 1949

Day

3

1ft

91

O*>

23

9ft

4Q

March April

"~

"

""

~~

-"

O 1

0 I

"

May

64

June

67

July August

77

67

79

September

Aft

ft 9

58
ARKANSAS RIVER BASIN 117

ARKANSAS RIVER BASIN Continued

MORA RIVER AT LOMA PARDA, N. HEX.--Continued

Suspended sediment. January to September 1949

Day

2 ......

6 ...... 

7 ... 

8 ...... 

9 ...... 

10 ... ... 

11 ...... 

12 ...... 

13 ......

15 ......

20 

25 -----

no

31 

Total111

21 

22 

23 ------ 

24 

25 ------

26 

27 

28 ------ 

29- ----- 

30 ------ 

31 

TotalJanuary

Mean

charge 

(secondfeet)

12 

14

10 

9.0 

9.0 

9.0 

9.0 

9.5 

10 

11 

12 

9.0 

11 

9.0 

8.0 

8.0 

6.0 

6.5

172.0

Suspended sediment

Mean 

concentration 

(percent)

0 

0

0 

0 

0 

0 

0

.01 

.01 

0 

0 

0 

0 

.01 

0 

0 

.01 

0

Tons 

per 

day

0 

0

0 

0 

0 

0 

0

3 

3 

0 

0 

0 

0 

2 

0 

0 

2 

0

10

April

15 

17 

20 

21 

24

35 

28 

29 

30 

37 

42 

40 

36 

33 

37 

40 

38 

40 

59 

47 

45 

48 

56 

68 

68

63 

70 

72 

74 

88

1,320

0.01 

.01 

0 

0 

.01 

.01 

0 

.01 

.01 

.01

.01 

.01 

.01 

.01 

0 

0 

0 

0 

0 

.02 

.01 

.01 

.01 

.03 

.03 

.03 

.06 

.04 

.04 

.09

--

4 

5 

0 

0 

6

9 

0 

8 

8 

10 

11 

11 

10 

9 

0

0 

0 

0 

0 

25 

12 

13 

15 

55 

55

51 

113 

78 

80 

214

-802

February

Mean

charge 

(secondfeet)

7.0 

8.0 

8.5 

8.5 

8.5 

9.5 

9.5 

9.5 

9.0 

8.0 

8.0 

9.5 

12 

12 

13

15 

14 

14 

13 

14

14 

15 

15 

15 

17 

16 

17 

22

341.5

Suspended sediment

Mean 

concentration 

(percent)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

.01 

.01 

.01 

0 

0 

0 

0 

.01 

0 

0

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

4 

4 

4 

0 

0 

0 

0 

4 

0 

0

16

May

89 

78 

74 

79 

68

69 

88 

76 

67 

78

166 

411 

241 

212 

220 

219 

198 

180 

137 

118 

92 

88 

66 

52 

45

43 

62 

65 

62 

62 

52

3,557

0.05 

.04 

.04 

.05 

.03 

.03 

.03 

.03 

.02 

.03 

.14 

.36 

.14 

.12 

.10

.10 

.06 

.06 

.04 

.03 

.03 

.02 

.01 

.01 

.01

.01 

.02 

'.02 

.01 

.01 

.01

120 

84 

80 

107 

55

56 

71 

62 

36 

63

1/1,190 

1/5, 720 

911 

687 

594

591 

321 

292 

148 

96 

75 

48 

18 

14 

12

12 

33 

35 

17 

17 

14

11,580

March

Mean

charge 

(secondfeet)

24 

27 

28 

26 

16 

16 

16 

17 

15 

16 

15 

14 

13 

9.4 

12

15 

14 

14 

13 

14

13 

11 

11 

10 

9.9 

10 

11 

11 

11 

14 

13

459.3

44 

26 

10 

52 

77 

147 

146 

158 

132 

133

157 

154 

162 

151 

135 

128 

120 

253 

475 

186 

165 

227 

189 

180 

159

130 

104 

84 

69 

62

4,218

Suspended sediment

Mean 

concentration 

(percent)

0.01 

0 

0 

0 

0 

0 

.01 

.01 

.01 

.01 

0 

.01 

.01 

.01 

.01

.01 

.01 

0 

.01 

0 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

Tons 

per 

day

6 

0 

0 

0 

0 

0 

4 

5 

4 

4 

0 

4 

4 

3 

3

4 

4 

0 

4 

0 

4 

3 

3 

3 

3 

3 

3 

3 

3 

4 

4

J3

June

0.01 

0 

0 

.06 

,07

.48 

.19 

.10 

.05 

.05

.07 

.05 

.08 

.04 

.03

.03 

.02 

.25 

.54 

.18

2/-22 

.24 

.11 

.05 

.04

.05 

.03 

.02 

.01 

.01

~

12

0 

0 

84 

1/295

1/2,240 

1/898 

427 

178 

180

297 

208 

356 

163 

109

104 

65 

1/5,880 

1/8,040 

904 

980 

1,470 

561 

243 

172

176 

84 

45 

19 

17

24, 000

I/Sediment discharge computed by subdividing day. 

2/Estima.ted or interpolated.
LOWER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN Continued 

NORA RIVER AT LOMA PARDA, N. HEX. Continued 

Suspended sediment, January to September 1949 Continued

Day

12

1ft

on

oo

25 

97

28

31 ------

TotalJuly

Mean 

discharge 

(secondfeet)

55 

45 

28 

21 

17

19 

17 

16 

15 

29

38 

41 

60 

89 

63 

51 

46 

54 

39 

44 

78 

420 

279 

289 

195

160 

125 

105 

120 

84 

81

2,723

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01 

0 

.01 

.01 

.01 

.05

.23 

.04 

.07 

.29 

.18 

.04 

.02 

.12 

.07 

.06

.09 

1.06 

.63 

.31 

.18

.10 

.18 

.05 

.17 

.14 

.04

--

Tons 

per 

day

15 

12 

8 

6 

5 

0 

5 

4 

4 

39

236 

44 

113 

1/810 

306 

55 

25 

1/307 

74 

71

1/913 

1/11,900 

1/5,110 

1/2, 560 

948

432 

607 

142 

754 

318 

87

25, 910

August

Mean

discharge 

(secondfeet)

82 

98 

129 

122 

85 

76 

83 

94 

85 

74

59 

52 

52 

46 

40 

33 

138 

142 

57 

47

42 

37 

26 

21 

21 

22 

17 

18 

17 

10 

10

1,835

Suspended sediment

Mean 

concentration 

(percent)

0.18 

.25 

.37 

.24 

.06 

.04 

.04 

.13 

.08 

.09

.03 

.02 

.02 

.02 

.01 

.01 

.26 

.52 

.14 

.04

.02 

.02 

.01 

.01 

.01

.08 

.02 

.01 

.01 

.01 

.01

--

Tons 

per 

day

399 

1/927 

1/1,500 

791 

138 

82 

90 

330 

184 

180

48 

28 

28 

25 

11 

9 

1/2, 140 

1/2,220 

215 

51

23 

20 

7 

6 

6

48 

9 

5 

5 

3 

3

^530

September

Mean

charge 

(second - 

feet)

14 

23 

19 

23 

32 

29 

28 

28 

146 

61

38 

34 

35 

36 

37 

37 

31 

30 

30 

28

26 

26 

23 

23 

21

21 

21 

31 

34 

28

993

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.02 

.02 

.02 

.02 

.02 

.01 

.01 

.45 

.21

.05 

.02 

.02 

.02 

.02 

.04 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.03 

.05

Tons 

per 

day

4 

12 

10 

12 

17 

16 

8 

8 

1/2,080 

1/346

51 

18 

19 

19 

20 

40 

17 

8 

8 

8

7 

7 

6 

6 

6

6 

6 

8 

28 

38

2,840

Total discharge for period Jan. 14 to Sept. 30(second-foot-days)- 

Total load for period Jan. 14 to Sept. 30 (tons) 

15,618.8

74,780

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
ARKANSAS RIVER BASIN Continued 

MORA RIVER AT LOMA PARDA, N. HEX. Con

(Particle-size analyses of suspended sediment, July to S

(Methods of analysis: B, bottom withdrawal tube; O, oecantation; P, pipet

W, in distilled water; C, chemically dispersed; M, mechan

Date

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

Time

4:15 p. m. 

8:10 a. m. 

9:30 a. m. 

5:35 p.m.

6:30 p.m. 

9:00 a. m. 

6:25 a. m. 

8:40 a. m.

Mean 

discharge 

(secondfeet)

38 

420 

84 

57

23 

61 

28 

34

Suspended 

Mean daily 

concentration 

(percent)

0.23 

1.06 

.14 

.14

.02 

.21 

.01 

.03

Weight of 

material 

in tube 

(grams)

0. 4626 

.6527 

.3759 

.0373

.0163 

.4351 

.1061 

.7129

Percent 

0.003

41 

45 

30 

25

22 

38 

26 

31

0.004

61 

65 

49 

38

33 

52 

34 

47

0.008

77 

83 

68 

54

47 

66 

44 

65

0.016

87 

90 

78 

68

65 

80 

65 

80
120 LOVER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN Continued 

UTE CREEK NEAR BUEYEROS, N. HEX.

LOCATION. At gaging station at ford on State Highway 57, 3| miles northwest of Bueyeros,

Harding County. 

RECORDS AVAILABLE. Water temperatures: March to September 1949.

Sediment records: March to September 1949. 

EXTREMES. Water temperatures: Maximum, 93° F July 29; minimum, 33° F April 1.

Sediment loads: Maximum, 134,000 tons per day August 15; minimum, less than one-half ton

per day on several days.

REMARKS. Records of discharge for period March to September 1949 given in Water-Supply 

Paper 1147.

Temperature (° F) of water, March to September 1949 

iQnce-daily temperature measurement generally at 5 p. m. or later

Day

12 

18

97

March '

58 

56 

55

1/55 

40

50 

65 

64 

1/40 

60 

41

-

April

1/33 

1/39 

1/42 

1/54 

65

62 

65 

64 

46 

45

65 

6Q 

1/62 

65 

61

64 

64 

1/52 

60 

54

60 

67 

63 

60

1/70

65 

55 

70 

65 

52

58

May

65 

62 

1/65 

60 

61

51 

1/59 

63 

60

1/64.'

57 

65 

67 

70 

59

59 

61 

63 

70 

65

60 

1/77 

70 

60 

70

70 

60 

60 

62 

70 

60

63

Tune

70 

70 

58

j#

60 

60 

61 

60 

64

66 

64 

65 

70 

73

77 

82 

70 

1/82 

79

60 

70 

74 

59 

79

82 

81 

79 

70 

75

71

July

80

64 

78 

89

60 

79 

80 

70 

82

71 

74 

80 

78 

77

82 

86 

81 

82 

80

74 

79 

78 

77 

71

73 

75 

80 

93 

84 

85

78

August

74 

71 

70 

74 

79

75 

75 

77 

73 

60

73 

80 

68 

75 

79

74 

70 

81 

82 

74

85 

82 

77 

72 

71

75 

62 

73 

65 

76 

63

74

September

70 

69 

77 

76 

70

71 

72 

69 

72 

73

72 

72 

63 

72 

63

74 

73 

71 

72 

78

85 

82 

76 

70 

72

64 

65 

63 

67 

61

71

1/fteading obtained between 2 p. m. and 5 p. m.
ARKANSAS RIVER BASIN 121

ARKANSAS RIVER BASIN Continued

DTE CREEK NEAR BUEYEROS, N. HEX. Continued

Suspended sediment, March to September 1949

Day

g

17, ..... 

18 ... 

20 

21 ......

24. _ .

no

29 

30 ...... 

31 ......

Total12 .... ..

1Q

20 ----- -

21 - 

22 ------ 

23 

24 ------ 

25 . 

26 ------ 

27 

28 

29 ----- 

30 ...... 

31 ......

TotalJanuary

Mean

discharge 

(secondfeet)

9.6 

11 

14 

14 

12 

8.6 

7.8 

7.1 

7.8 

6.4 

5.8 

5.2 

4.2 

4.2 

4.2 

4.7 

4.2 

7.1 

8.6 

13 

11 

12 

8.6 

7.8 

8.6 

11 

14 

3.4 

4.2 

3.4

243:5

Suspended sediment

Mean 

concentration 

(percent)

April

0.01 

.01 

.02 

.01 

.01 

.01 

.01 

.01 

.02 

.01

0 

0 

.01 

0 

.01 

.01 

.01 

.01 

0 

.01 

.01 

.01 

.01 

0 

.01

.04 

.18 

.10 

.02 

.02

Tons 

Per 

day

3 

3 

3 

4 

3 

2 

2 

2 

4 

2

0 

0 

1 

0 

1 

1 

1 

2 

0 

4 

3 

3 

2 

0 

2

12

1/385 

9 

2 

2

463

February

Mean

charge 

(secondfeet)

2.0 

2.0 

1.8 

1.6 

1.6 

5.2 

14 

14 

11 

5.2

4.2 

3.8 

3.8 

2.7 

277 

8.6 

6.4 

6.4 

3.8 

3.4 

2.4 

2.7 

2.4 

3.0 

2.4

2.0 

1.8 

2.0 

1.8 

1.1 

1.0

401.1

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

May

0.01 

.01 

.01 

.01 

.01 

.03 

.19 

.14 

.04 

2/.02 

.01 

.01 

.01 

.01 

1.00 

.10 

.01 

.01 

.02 

.01 

.01 

0 

0 

0 

.01

0 

.02 

.01 

.01 

.01 

.02

1 

1 

0 

0 

0 

4 

1/175 

53 

12 

3 

1 

1 

1 

1 

1/31,700 

23 

2 

2 

2 

1 

1 

0 

0 

0 

1

0

1 

1

0 

0

1

31,990

March

Mean

charge 

(secondfeet)

11

8.6 

5.8 

3.8 

5.2 

5.8 

5.8 

5.2 

6.4 

8.6 

8.6

74.8

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

~

Tons 

Per 

day

3 

2 

2 

1 

1 

2 

2 

1 

2 

2 

2

20

Tune

0.6 

.4 

.8 

16 

22 

23 

29 

14 

18 

22

13 

24 

3.8 

14 

18 

16 

8.6 

30 

16 

14 

14 

12 

6.4 

7.8 

7.1

7.1 

5.2 

4.2 

4.2 

3.0

374.2

0.02 

.02 

.08 

.23 

.26 

.18 

.17 

.08 

.02 

.03 

.02 

.24 

.07 

.10 

.10 

.03 

.02 

.23 

.30 

.10 

.09 

.12 

.02 

.06 

.01

.08 

.01 

.01 

.02 

.01

0 

0 

2 

1/140 

1/240 

1/150 

1/270 

30 

9 

18

7 

1/710 

7 

38 

c3 

13 

5 

1/970 

130 

38 

1/135 

39 

3 

13 

2

20 

1 

1 

2 

1

3,040

I/Sediment discharge computed by subdividing day 

2/Estimated. *'
122 LOWER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN--Continued 

UTE CREEK NEAR BUEYEROS, N. HEX. Continued 

Suspended sediment March to September 1949 Continued

Day

g

Ifi

20

o«

25

OA

no

29

31 ......

TotalJuly

Mean 

discharge 

(secondfeet)

2.0 

16 

12 

5.8 3."0

2.4 

2.4 

2.7 

8.6 

26 

342 

122 

26 

18 

84

50 

12 

7.8 

7.1 

5.2 

6.4 

8.6 

4.7 

3.4 

3.4 

45 

46 

24 

11 

6.4 

5.2

919.1

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.04 

.08 

.01 

.01

0 

0 

0 

.04 

.11 

1.18 

.58 

.10 

.02 

.23

.11 

.08 

.02 

.01 

.01

.01 

.01 

.01 

.02 

.06 

.42 

.22 

.12 

.06 

.04 

.02

-

Tons 

per 

day

1

17 

26 

1 

1 

0 

0 

0 

1/26 

JL/120 

1/37,400 

1/4,820 

70 

10 

1/1,440

148 

26 

4 

2 

1

2 

2 

1 

2 

7 

1/1,940 

275 

78 

18 

7 

3

46,450

August

Mean

charge 

(secondfeet)

3.8 

4.7 

55 

16 

11

4.7 

3.4 

2.4 

94 

943 

315 

267 

273 

183 

1,370

169 

37 

16 

12 

11

8.6 

7.1 

5.8 

5.2 

4.7 

4.2 

4.2 

3.8 

47 

50 

14

3,945.6

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.31 

.10 

.10 

.02 

.01 

.01 

.11 

1.31 

.12 

.04 

.36 

.08 

.67

.27 

.17 

.08 

.04 

.10 

.02 

0 

0 

0 

0 

.07 

.01 

0 

.21 

.15 

.01

Tons 

per 

day

2 

3 

1/920 

1/80 

30

3 

1 

1 

1/5,850 

1/57,200 

1,020 

298 

1/4,370 

395 

1/134,000

1/3,660 

1/380 

35 

13 

30 

5 

0 

0 

0 

0 

8 

1 

0 

1/800 

1/345 

4

209,400

September

Mean 

discharge 

(secondfeet)

16 

20 

18 

14 

13

74 

179 

62 

87 

16 

13 

7.8 

5.8 

5.8 

5.8

4.7 

2.0 

2.7 

4.2 

5.2

3.8 

2.4 

3.4 

3.4 

3.4 

3.4 

3.8 

3.8 

. 4.2 

4.2

591.8

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01 

.12 

.46 

.20 

.40 

.04 

.02 

.01 

0 

0 

.01

.01 

0 

0 

.02 

.02

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

~

Tons 

per 

day

4 

5 

5 

4 

4

1/645 

1/6,000 

1/525 

1/3,150 

17 

7 

2 

0 

0 

2

1 

0 

0 

2 

3

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

10,380

Total discharge for period Mar. 21 to Sept. 30 (second-foot-days]! 

Total load for period Mar. 21 to Sept. 30 (tons) 

6,550.1 

J01,700

I/Sediment discharge computed by subdividing day. 

I/Estimated.
ARKANSAS RtfTER BASIN Continued 

DTE CREEK NEAR BUEYEROS, N. HEX. Con

Particle-size analyses of suspended sediment, June to S

(Methods of analysis: B, bottom withdrawal tube; O, decantation; P, pipe

W, In distilled water; C, chemically dispersed; M, mecha

Date

Aug. 10 -

Sept. 6 

Time

5:10 p.m. 

5:30 p.m. 

5:30 p. m. 

5:00 p. m.

5:30 p. m. 

6:00 a. m. 

5:30 p. m. 

4:00 p. m. 

5:30 p.m.

Mean

discharge 

' (secondfeet)

24 

342 

342 

45

55 

943 

37 

47 

74

Suspende

Mean daily 

concentration 

(percent)

0.24 

1.18 

1.18 

0.42

0.31 

1.31 

0.17 

0.21 

0.12

Weight of 

material 

in tube 

(grains)

1. 5088 

1.5446 

1. 1061 

1.0068

0. 7195 

2.9802 

0. 9550 

1. 5861 

0.6894

Percent 

0.002

59 

31 

31 

34

35 

7 

20 

23 

8

0.004

73 

42 

37 

39

58 

23 

30 

35 

30

0.008

89 

53 

50 

52

70 

31 

42 

48 

45

0.016

9

6

5

5

8

4

5

6

5
ARKANSAS RIVER BASIN Continued 

DEEP FORK RIVER NEAR DEWAR, OKLA.

LOCATION. At gaging station at bridge on U. S. Highway 266, 3J miles upstream from Wolf Creek, a

DRAINAGE AREA. 2,307 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 2,730 parts per million Dec. 1-3; minimum, 97 par

Total hardness: Maximum, 624 parts per million Dec. 1-3; minimum, 52 parts per million May 19-

Water temperatures: Maximum, 85° F July 22; minimum, 33° F Jan. 28-29, 31-Feb. 2.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Stillwater, Okla.

Chemical anal]

Date of collection

Oct. 1-4, 1948 

Oct 21 25 -

N

__ I I MA

Nov. 11-27 

Dec. 21-23, 30-31 

Dec. 24-25, 29 

Jan. 1-10, 1949 

Jan. 21-23, 25 

Mean 

discharge 

(secondfeet)

45.5 

27.7 

19.7 

14.7 

14.0 

13.2 

17.2 

26.6 

26.0 

33.3

38.7 

48.1 

'60.4 

92.0 

49.6 

49.7 

48.3

38.8 

81.3 

382 

814 

875

S4ft

Temperature 

(°F)

PH

8.3 

7.8

7.9

Specific 

conductance 

(micromhos at 

25* C)

2,400 

2,920 

3,230 

3,650 

3,340 

2,660 

2,160 

1,980 

2,510 

3,520

4,120 

3,160 

2,460 

1,560 

2,020 

2,730 

3,720

2,610 

2,580 

3,480 

2,240 

843 

sai

Silica 

(SiO.)

5.0 

6.0

8.0

Iron 

(Fe)

0.10 

.00

00

ses, in parts per million, water year October 1948 to 

Calcium 

(Ca)

95 

112 

121 

141 

127 

109 

92 

91 

119 

148

158 

126 

126 

86 

94 

106 

140

103 

100 

132 

84 

34 

29

Magnesium 

(Mg)

35 

44 

48 

54 

47 

39 

34 

37 

49 

58

56 

47 

47 

33 

39 

44 

52

36 

41 

46 

27 

15 

14

Sodium 

(Na)

Potassium 

(K)

384 

485 

618 

568 12 

646

316 | 13 

308 

462 

630

817 

552 

645 

337 

383 

428 

723

413 

368 1 12 

529 

339 

118 

65

Bicarbonate 

(HCO.)

173 

192 

186 

213 

200 

186 

186 

199 

197 

196

198 

207 

215 

161 

204 

228 

218

1/178 

205 

194 

98 

90 

102

Sulfate 

(30J

25 

27 

23 

27 

28 

41 

35 

42 

48 

49

50 

50 

40 

71 

47 

48 

49

38 

46 

40 

33 

21 

IB

Ch

ri

(C

1,

1

1

1

1

1

1

1

1

I/Includes equivalent of 7 parts per million of carbonate (CO,).
Feb. 4-6 ----- 

-

Feb. 21-22, 25-28-

Mar. 21, 30-31 

Apr. 11, 18-20 

June 21, 26-30 

June 22-9.5 

354

1,937 

3,242 

3,056 

2,335

2,215 

681 

294 

677 

1,422

394 

704 

1,446 

239 

248

1,990 

4,250 

4,920 

2,507 

11,700 

17,490

8,588 

13,670 

5,938 

1,298 

B2Q

625

874

1,560

364

428

636

532

939

1,520

1,310

833

1,170

1,040

725

1,290

1,770

2,140

333

351

686

188

220

307

216

367

613

877

..

--

22

"_

13

..

--

--

..

--

--~_

--

--

Q.60

29

37

63

17

22

32

27

46

70

64

42

57

54

36

63

84

86

19

21

29

12

11

21

14

26

30

48

12

14

18

3.2

9.0

8.7

12

19

28

25

15

25

24

16

37

42

33

10

9.4

12

5.4

8.8

9.9

7.1

11

14

21

81

115

224

48 | 6.0

45

78

62

118

195 18

158

101

138

120

80

133

198

303

32

31

85

16

17

24

23

30

73

99

86

79

53

42

51

50

87

117

179

154

94

179

154

100

180

209

179

60

70

83

24

56

81

62

97

94

161

19

23

31

14

16

22

21

31

30

28

27

27

28

19

28

30

31

11

11

20

14

8.3

8.7

8.5

10

17

29
ARKANSAS RIVER BASIN Continued

DEEP FORK RIVER NEAR DEWAR, OKLA. Contin

Chemical analyses, In parts per million, water year October 1948 to Se

Date of collection

July 1, 5-8, 1949 

July 11-13, 17-20 -

Aug. 21-23, 28-31 

Sept. 14-15 

Sept. 21-30 ----- - 

Weighted average 

Mean 

discharge 

(secondfeet)

434 

435 

267 

253 

78.6

81.2 

113 

85.0 

67.5 

61.2 

76.7 

54.2

32.7 

775 

94.0 

528 

483 

117

1,731

Temperature 

(°F)

PH

8.0 

7.6

--

Specific 

conductance 

(micromhos at 

25" C)

924 

1,290 

973 

1,340 

1,300

1,470

2,410 

2,300 

1,470 

1,550 

2,080

1,070 

1,070 

1,530 

2,100 

637 

562

408

Silica 

(S10.)

1.0 

4.6

--

Iron 

(Fe)

0. 00 

.08

"

Calcium 

(Ca)

50 

68 

50 

64 

64

72 

82 

100 

88 

62 

66 

84

52 

44 

67 

82 

24 

28

21

Magnesium 

(Mg)

25 

33 

25 

29 

26

31 

37 

41 

43 

37 

37 

43

29 

19 

36 

41 

11 

9.1

10

Sodium 

(Na)

1( 

1 

1C

1 

157

1 

2! 

3. 

3 

1 

1 

2

1 

1

1 

2

66

Potassium 

(K)

13 

39 

»7 

55 

7.8

re

6 

5 

18 

56 

)9

re

24 

)6 

H 

90 

32 

8.6

45

Bicarbonate 

(HCOS)

194 

225 

188 

171 

215

212 

234 

211 

199 

241 

246 

232

217 

106 

226 

202 

66 

113

72

Sulfate 

(SOJ

24 

26 

21 

21 

23

25 

35 

30 

31 

39 

37 

31

28 

21 

36 

29 

16 

18

12
Temperature (° F ) of water, water year October 1

Day

1 

12 - 

i a

oo

no

29

October

66

60

O|

63

November

65

December

44

January

39

February

00 

dd

March

47

A
ARKANSAS RIVER BASIN Continued 

BELL COW CREEK AT CHANDLER, OKLA.

LOCATION.--At gaging station at bridge in Chandler, Lincoln County, li miles downstream from Bell 

U. S. Highway 66. 

DRAINAGE AREA. 46 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 644 parts per million Mar. 21-26; minimum, 77 part

Total hardness: Maximum, 382 parts per million Mar. 21-26; minimum, 50 parts per million Jan. 2

Water temperatures: Maximum, 92° F July 2; minimum, 33° F Jan. 19-20, 24-Feb. 1, 3.

REMARKS. No discharge records available for this station. Records of specific conductance of dai

OKla.

Chemical anal

Date of collection

Oct. 1-10, 1948 -

Jan. 1-10, 1949 -

Jan. 21, 24-31 

Mor 57-5(1 _

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

pH

8.4 

8.4

8.2 

8.3

8.2 

9.1

Specific 

conductance 

(micromhos at 

25° C)

555 

585 

643 

586 

582 

589

420 

553 

627 

567 

564 

564 

131

130 

650 

644 

716 

725 

1,180

fiR4

Silica 

(SiO.)

19

17

16 

17

13 

16

Iron 

(Fe)

0.00 

.00

.00 

.00

.00 

.05

yses, in parts per million, water year October 1948 to 

Calcium 

(Ca)

34 

41 

46 

51 

48 

44

36 

46 

49 

42 

55 

50 

11

14 

58, 

59 

63 

62 

74 

54

Magnesium 

(Mg)

55 

56 

55 

45 

52 

43

48 

47 

49 

46 

37 

36 

5.5

5.7 

33 

33 

45 

47 

48 

44

Sodium 

(Na)

8 

9 

30 

21 

6 

19

14 

8 

19 

15 

14 

17 

18

6 

33 

34 

22 

37 

106 

2S

Potassium 

(K)

0 

7 

4.2 

4.7 

4 

6.3

0 

3.6

.4 

2.7

1.8

Bicarbonate 

(HCO,)

326 

1/367 

414 

2/350 

3/371 

349

336 

345 

i/384 

J5/349 

6/338 

1/321 

59

58 

295 

1/308 

7/349 

366 

2/330 

4/S5B

Sulfate 

(SO,)

19 

12 

14 

11 

10 

11

12 

11 

11 

11 

14 

18 

30

13 

18 

18 

21 

18 

16 

18

Chl

rid

(Cl

2

2

2

2

2

2

2

2

1

2

1

1

6

6

5

5

23

4

I/Includes equivalent of 10 parts per million of carbonate (CO,). 

2/Inclucies equivalent of 8 parts per million of carbonate (CO,). 

3/Includes equivalent of 7 parts per million of carbonate (CO,). 

4/Includes equivalent of 11 parts per million of carbonate (CO,). 

5/Includes equivalent of 16 parts per million of carbonate (CO,). 

6/Includes equivalent of 18 parts per million of carbonate (CO,). 

7/Includes equivalent of 12 parts per million of carbonate (CO,).
Apr. 1-10 . 

Apr. 11-20- 

Apr. 21-30- 

May 1-10 ~ 

May 11-13 - 

May 14-22 - 

May 23-31 -

June 1-7- -- -- 

June 8-11 - 

June 12-20 

June 21-30 

July 1-3, 9-10 

July 4-8 - 

July 11-20 ------

July 21-31 

Aug. 1-10 

Aug. 11-20 

Aug. 21-31 

Sept. 1-10 

Sept. 11-12, 16-20 

Sept. 13-14 

Sept. 21-30 

625

634

655

715

614

240

587

593

364

692

644

569

372

614

589

619

616

601

572

583

261

594

I 2.1

19

14

20

14

17

6.7

21

2/340

2/375 

369 

373

2/305 

116

2/290

275

173

375

a/354

5/314

g/192

350

354

340 

376 

366 

354 

361 

154 

2/332

18

,17

15

17

17

8.3

16

14

12

17

16

16

12

14

15

16

13

12

11

12

10

26

2/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 7 parts per million of carbonate (CO,). 

^/Includes equivalent of 16 parts per million of carbonate (CO,). 

ft/Includes equivalent of 9 parts per million of carbonate (CO,). 

9/Includes equivalent of 6 parts per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continu

BELL COW CREEK AT CHANDLER, OKLA. 

Temperature (° F ) of water, water year October 194

Day

q

Q

*>n

25

31

verage

October

 ^77

58

November

o»

December January February March

*

Ap
ARKANSAS RIVER BASIN Continued 

PETIT JEAN CREEK AT DANVILLE, ARK.

LOCATION. At gaging station on State Highway 10 at Danville, Yell County, a quarter of a mile do

Chicago, Rock Island & Pacific Railway bridge. 

DRAINAGE AREA. 741 square miles. 

RECORDS AVAILABLE. Chemical analyses; October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 68 parts per million Dec. 21-31; minimum, 42 part

Total hardness: Maximum, 33 parts per million Nov. 1-10; minimum, 9 parts per million Feb. 1-1

Water temperatures: Maximum, 86* F July 22; minimum, 40° F Dec. 30-Jan. 1, 31.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

J

sm 91 93

Jan. 24, 27, 30-31 - 

Jan. 25-26, 28-29 

Mar 11 20

Mar 71-11 .

Mean 

discharge 

(secondfeet)

16.9 

31.9 

9.49 

10.0 

12.3 

14.2

12.2 

4.18 

434 

99.3 

102 

1,052 

2,700 

5,987 

12,750

5,000 

5,574 

4,075 

2,349 

762 

H 42B

Color

7 

7 

30 

20 

40 

35

20 

45 

100 

110 

13 

14 

14 

23 

23

14 

13 

11 

9 

7 

9

PH

Specific 

conductance 

( micro - 

mhos at 

25° C )

86.4 

87.3 

88.2 

106 

92.9 

89.6

84.4 

78.1 

48.6 

54.2 

57.6 

56.2 

69.1 

39.8 

28.9

37.4 

36.2 

42.7 

47.8 

51.0 

44.9

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

4.8 

5.6 

6.4 

6.2 

6.0 

5.6

5.4 

4.5 

1.9 

2.6 

2.4 

2.6 

5.2 

1.9 

1.1

1.5 

2.0 

2.0 

1.9 

2.0 

2.0

Magnesium 

(Mg)

3.5 

3.1 

3.8 

4.3 

4.1 

4.0

3.6 

3.2 

2.0 

3.8 

3.1 

2.1 

3.2 

2.6 

2.1

1.2 

1.6 

2.1 

2.5 

2.6 

2.8

Sodium 

(Na)

8 

8 

7 

7 

10 

9

7 

7 

5 

2 

4 

6 

3 

3 

2

3 

2 

2 

2 

3 

2

Potassium 

(K)

4 

0 

3 

9

4

1 

7 

8 

6 

7 

9 

3 

0 

2

9 

5 

2 

8 

0 

2

B
ARKANSAS RIVER BASIN Continued

PETIT JEAN CREEK AT DANVILLE, ARK. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Mean 

discharge 

(secondfeet)

2,123 

839 

260 

1,662 

211 

663

875 

1,278 

1,091 

178 

134 

54.4

70.1 

52.3 

31.2 

25.1 

77.9 

75.9

1,072

Color

14 

8 

6 

14 

9 

9

37 

50 

45 

6 

7 

7

16 

10 

17 

5 

6 

6

"

PH

Specific 

conductance 

(micromhos at 

25° C )

55.6 

52.7 

57.1 

56.8 

54.7 

52.8

62.3 

70.8 

64.1 

70.0 

67.5 

76.3

76.8 

81.8 

82.3 

87.5 

86.0 

89.0

65.9

Silica 

(SJO,)

Iron 

(Fe)

Calcium 

(Ca)

2.5 

2.3 

2.6 

2.8 

2.9 

2.7

3.2 

3.1 

3.4 

4.1 

4.1 

4.4

4.5 

4.9 

5.6 

5.6 

5.3 

5.6

3.7

Magnesium 

(Mg)

2.5 

2.5 

2.4 

2.8 

2.5 

3.4

2.3 

2.8 

2.8 

2.6 

2.7 

2.8

2.8 

3.0 

3.4 

3.9 

3.8 

3.8

2.9

Sodium 

(Na)

Potassium 

(K)

6.6 

7.2 

7.1 

5.5 

4.1 

3.4

3.9 

1.9 

3.1 

6.8 

6.7 

8.9

6.4 

6.9 

6.4 

4.5 

6.0 

6.8

5 5

B

bo

(H
Temperature (" F ) of water, water year October 

Day

2

o

ifl

22

25

27

October November

SO

December

SO

January

SO

SO

February

SO

March

so
ARKANSAS RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN ARKANSAS RIVER BA

Chemical analyses, in parts per million, water year October 1948 t

Dste of collection

Discharge 

(secondfeet)

Temperature 

<°F)

PH

Specific 

conductance 

(micromhos at 

25" d)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

<Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(SOJ

C

r

(

CANADIAN RIVER NEAR TAYLOR SPRINGS I

Feb 19 1949

Son* 9 

22 2

29 7

24 7

12 9

3 210

3 250

2 700

2 *>Qn

79.4

198 279

253

244

944

220

224

214

1R4

1 370

999

CIMARRON RIVER AT SPRINGER I/

11 2

3

QQ

3

1 7

3 24

4 64

3 120

3 290

2 990

2

0 on

272

Qnn

QQQ 204

OfWl

1 flQ

Qf\4

279

I

nqn

I/Samples collected at gaging station at times of discharge measurements.
RAYADO RIVER AT SAUBLE RANCH NEAR CIMARR

Mar 8 1949

5 25

4 75

28 4

122

1 9ft

113

3

n

82

fli

RAYADO RIVER NEAR MIAMI I/

4.80 

3.97

151 

165 

318

83 

95 

199

CONCHAS RIVER NEAR VARIADERO 2/

June 13-17, 20, 1949

June 30, July 1-5,

540 

589

392

193 

190

174

94 

116

47

I/Samples collected at gaging station at times of discharge measurements. 

2/Composites of daily samples collected at Quintana Ranch approximately 4 miles upstream from gaging station which is at 

14 miles west of Conchas Dam. Samples obtained at this point only when rainfall is sufficient to cause river to flow.
LOWER MISSISSIPPI RIVER BASIN

z S

5 S

os §

OQ o

m O

3 «

0

3 go

islg

lo"

a 2 S h

OS<!
FOURCHE LA PAVE RIVER NEAR NIHROD

Mar 8 1949 6,170 

59 |

36.9 

44.7

SOUTH FOURCHE LA PAVE RIVER NEAR HOLLIS

rw>* s iQdfi

Mow 9R 1Q4Q

0 

33 

.1

110 

32.9 

57.9

BA.YOU METO NEAR STUTTGART

Mar 1 1949 1,750 

2.4

49.2 

284

CROOKED CREEK NEAR HUMPHREY

950 

.1

53.5 

141
RED RIVER BASIN 

RED RIVER AT DENISON DAM NEAR DEN ISON, TEX

LOCATION. Immediately below dam on Red River, 1.7 miles upstream from Sand Creek, and 5 miles no

DRAINAGE AREA.--38,290 square miles above 3am, 38,330 souare miles above gaging station. 

RECORDS AVAILABLE. Chemical analyses: May 1944 to September 1949.

Water temperatures: October 1945 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,040 parts per million July 1-31; minimum, 774 p

Total hardness: Maximum, 358 parts per million June 1-30; minimum, 310 parts per million Nov. 

Water temperatures: Maximum, 80° F Sept. 2, 6; minimum, 40° F Jan. 30. 

EXTREMES, 1944-49.--Dissolved solids: Maximum, 1,430 parts per million Aug. 11-20, Sept. 1-10, 

Total hardness: Maximum, 522 parts per million Aug. 11-20, Sept. 1-10, 1944; minimum, 233 part

Water temperatures: Maximum, 82° F Sept. 5, 1947; minimum, 40° F Jan. 30, 1949. 

REMARKS. Discharge records for gaging station near Colbert, Okla., for water year October 1948 

No appreciable inflow between sampling point and gaging'station except during periods of heavy 

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-31, 1948 

Jan. 1-31, 1949 

Weighted average

Mean 

discharge 

(secondfeet)

1,839 

2,166 

1,984 

2,570

2,410 

2,934 

2,349 

9,088

14,040 

2,307 

2,457 

2,452

3,880

PH

7.8 

8.0 

7.9

8.2

7.8 

7.7 

8.1

8.0 

7.9 

8.0 

7.8

--

Specific 

conductance 

(micromhos at 

25° C )

1,340 

1,340 

1,350 

1,350

1,540 

1,470 

1,380 

1,440

1,660 

1,710 

1,590 

1,480

1,520

Silica 

(Si02)

9.0 

7.8 

6.6 

8.1

7.0 

7.8 

6.1 

7.4

8.6 

12 

12 

13

8.6

Iron 

(Fe)

Calcium 

(Ca)

85 

85 

86 

87

92 

89 

88 

88

96 

100 

96 

92

91

Magnesium 

(Mg)

25 

24 

24 

26

26 

25 

24 

26

29 

25 

24 

28

26

 Sodium 

(Na)

Potassium 

(K)

147 

150 

153 

153

184 

171 

156 

166

200 

209 

196 

170

178

Bicarbonate 

(HCO,)

134 

131 

132 

138

139 

138 

143 

141

138 

135 

135 

129

137

Sulfate 

<SO«)

173 

175 

178 

178

190 

182 

175 

182

208 

217 

209 

203

193

Chlo

(Cl

2

2

2

2

3

2

2

2

3

3

3

2

2
Temperature (° F ) of water, water year October 194

Day

1 

3 

Q

i a

nc

27

30

October

75

ne

70

70

70

ftft

ftp.

November

66

(=7

December

-- 1

54

53

53

53

en

en

CO

cq

53

CO

50

49

53

January

50

48

49

48

A C

43

February

41

49

49

42

43

43

43

44

43

45

45

March

45

48

CO

52

53

54

54

A
140 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

NORTH FORK RED RIVER NEAR CARTER, OKLA.

LOCATION. At gaging station at bridge on State Highway 34, 3 miles south of Carter, 

Beckham County, and 12 miles downstream from Timber Creek.

DRAINAGE AREA. 2,380 square miles.

RECORDS AVAILABLE. Sediment records: March 1948 to September 1949.

EXTREMES, 1948-49. Sediment loads: Maximum, 344,000 tons per day May 7; minimum, no flow 

on many days.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Watersupply Paper 1147.

Suspended sediment, November 1948 to September 1949

Day

3

g

1 ^

1 ft

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

Mean 

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration

Tons 

per 

day

November

Mean 

discharge 

(secondfeet)

1,000 

1,590 

290 

90 

54

34 

26 

20 

18 

17

16 

16 

16 

32 

24

19

18 

18 

18 

18

18 

18 

19 

19 

19

19 

19 

19 

21

26

3,531

Suspended sediment

Mean 

concentration 

(ppm)

14,800 

33,500 

10,400 

5,300 

1/3,600

1/2,600 

1/1,800 

1/1,300

1/300

-

Tons 

per 

day

40,000 

144,000 

8,110 

1,290 

525

239 

126 

70 

15 

14

13 

13 

13 

26 

19

15 

15 

15 

15 

15

15 

15 

15 

15 

15

15 

15 

15 

17 

21

194,700

December

Mean 

discharge 

(secondfeet)

26 

28 

29 

30 

28

26 

26 

24 

22 

21

21 

20 

20 

21 

21

20 

18 

17 

18 

18

18 

18 

20 

22 

24

25 

30 

36 

29 

19 

22

717

Suspended sediment

Mean 

concentration 

(ppm)

1/200

115 

134

102 

240 

270 

295 

180

168 

151 

164 

184 

188

241 

212 

204 

214 

232 

226

-

Tons 

per 

day

14 

15 

16 

16 

15

14 

14 

13 

12 

11

11 

11 

11 

6.5 

7.6

5.5 

12 

12 

14 

8.7

8.2 

7.3 

8.9 

11 

12

16 

17 

20 

17 

12 

13

381.7

I/Estimated or interpolated.
RED RIVER BASIN 141

RED RIVER BASIN Continued 

NORTH FORK RED RIVER NEAR CARTER, OKLA. Continued

Suspended sediment, November 1948 to September 1949 Continued

Day

g

17 -.-

1 R

20

21

go

oc

27

Total -

13

1 R

20

91

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

January

Mean 

discharge 

(secondfeet)

32

30 

31 

27 

21

19 

37 

37 

36 

15

13 

17 

24 

29 

50

440 

250 

70 

30 

25

40 

130 

420 

250 

90

150 

115 

80 

60 

60 

70

2,698

Suspended sediment

Mean 

concentration 

(ppm)

220 

238 

251 

231 

209

674 

322 

359 

450 

207

226 

252 

294 

210 

430

728 

717 

691 

724 

286

295

290 

404 

1/414 

424

371 

1/400 

1/400 

1/400 

461 

280

-

Tons 

per 

day

19 

19 

21 

17 

12

35 

32 

36

44 

8.4

7.9 

12 

19 

16

58

865 

484 

131 

59 

19

32 

102 

458 

279 

103

150 

124 

86

65 

75 

53

3,441.3

April

99 

87 

84 

148 

141

108 

79 

66 

63 

56

47 

49 

51 

47 

40

36 

33 

32 

37 

43

49 

51 

58 

52 

43

43 

550 

533 

524 

335

3,584

1,470 

1,420 

1,040 

1,390 

588

908 

264 

280 

249 

256

174 

156 

141 

98 

106

97 

102 

80 

63 

105

278 

106 

110 

154 

80

120 

9,100 

11,000 

6,600 

2,400

--

393 

334 

236 

556 

224

265 

56 

50 

42 

39

22 

21 

19 

12 

11

9.4 

9.1 

6.9 

6.3 

12

37 

15 

17 

22 

9.3

14 

13,500 

15,800 

9,340 

2,170

43,250

February

Mean 

discharge 

(secondfeet)

72 

72 

90 

150 

380

2,390 

2,120 

939 

417 

180

122 

99 

137 

102 

111

111 

10* 

152 

242 

204

141 

137 

122 

114 

102

96

185 

204

9,299

Suspended sediment

Mean 

concentration 

(ppm)

217 

192 

202 

198 

134

9,140 

6,500 

5,800 

3,900 

1,800

1,100 

950 

1,000 

1,100 

1,400

1,800 

2,000 

2,300 

2,200 

1,200

761 

872 

1,180 

848 

504

483 

522 

524

-

Tons 

per 

day

42 

37 

49 

80 

137

59,000 

37,200 

14,700 

4,390 

875

362 

254 

370 

303 

420

540 

583 

944 

1,440 

661

290 

322 

389 

199 

139

125 

261 

289

124,400

May

214 

129

105 

90 

93

587 

7,200 

3,640 

1,970 

1,200

1,040 

733 

474 

549 

627

381 

1,350 

2,990 

945 

512

290 

170 

161 

358 

360

303 

2,940 

1,010 

1,080 

629 

549

32,679

2,400 

1,000 

733 

1,400 

606

5,720 

17,700 

19,700 

16,400 

8,700

4,900 

2,300 

3,200 

9,300 

9,740

6,800 

34,600 

23,400 

12,700 

6,910

6,200 

2,200 

1,300 

4,910 

8,800

1/6,300 

17,600 

3,200 

7,140 

5,400 

3,580

--

1,390 

348 

208 

340 

152

9,060 

344,000 

194,000 

87,200 

28,200

13,800 

4,550 

4,090 

13,800 

16, 500

7,000 

126,000 

189,000 

32,400 

9,550

4,850 

1,010 

565 

4,740 

8,550

5,160 

140,000 

8,720 

20,800 

9,170 

5,300

1,290,000

March

Mean 

discharge 

(secondfeet)

170 

129 

118 

133 

125

102 

96 

102 

102 

96

84 

84 

87 

93 

96

99 

96 

93 

87 

96

194 

403 

175 

118 

114

187 

122 

99 

52

47 

77

3,676

Suspended sediment

Mean 

concentration 

(ppm)

1,640 

1,050 

1,110 

1/669 

228

356 

654 

665 

222 

223

234 

224 

190 

164 

191

198 

236 

171 

680 

706

800 

1,600 

1,500 

900 

1,600

7,800 

1,600 

1,250 

890 

849 

1,460

-

Tons 

per 

day

752 

366 

354 

240 

77

98 

170 

183 

61 

58

53 

51 

45 

41 

50

53 

61 

43 

160 

183

419 

1,740 

708 

287 

492

3,940 

527 

334 

125 

108 

303

12,090

June

982 

554 

2,060 

1,270 

1,660

703 

396 

284 

398 

284

709 

452 

529 

189 

63

43 

33 

33 

31 

29

27 

23 

21 

74 

1,090

242 

129 

51 

32 

25

12,416

7,550 

3,000 

12,700 

8,140 

8,990

6,060 

3,400 

1,600 

2,650 

3,000

5,600 

3,800 

6,470 

4,600 

1,800

1,320 

1,200 

550 

1/331 

112

86 

78 

200 

3,290 

17,500

3,900 

1,900 

1,000 

874 

1,040

-

20,000 

4,490 

70,800 

27,900 

40; 300

11,500 

3,630 

1,230 

2,850 

2,300

10, 700 

4,640 

9,240 

2,350 

306

153 

107 

49 

28 

8.

6. 

4. 

11 

658 

51,600

2,550 

662 

138 

76 

70

268,357.

I/Estimated or interpolated.
142 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

NORTH FORK RED RIVER NEAR CARTER, OKLA.--Continued

Suspended sediment, November 1948 to September 1949 Continued

Day

2

5 ......

Q

1 3

1 ft

19

91

23

27 

28 

29 

30 

31 

Total -

July

Mean 

discharge 

(secondfeet)

21 

17 

14 

12 

9.6

7.6 

6.6 

6.6 

9.6 

177

505 

193 

148 

130 

108

315 

85 

20 

10 

7

4.6 

3.6 

3.0 

1.8 

1.0

1.0 

1.0 

.1 

0 

.1 

8.1

1,826.3

Suspended sediment

Mean 

concentration 

(nod)

122 

189 

152 

162 

143

104 

102 

106 

118 

11,400

13,600 

4,600 

3,800 

3,840 

3,620

7,720 

1,500 

1,220 

1,090 

248

176 

246 

381 

120 

94

104 

86 

565

1/300 

332

Tons 

per 

day

6.9 

8.7 

5.7 

5.2 

3.7

2.1 

1.8 

1.9 

3.1 

5,440

18,500 

2,400 

1,520 

1,350 

1,060

6,560 

344 

66 

29 

4.7

2.2 

2.4 

3.1 

.6 

.3

.3 

.2 

.2 

0 

.1 

7.3

37,329.5

August

Mean 

dis- 

 charge 

(secondfeet)

6.2 

.8 

0 

0 

0

0 

0 

0 

.2 

5.0

.4 

28 

7.1 

1.4 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

49.1

Suspended sediment

Mean 

concentration 

(ppm)

60 

1/60

1/100 

250

145 

1,480 

128 

48

Tons 

per 

day

1.0 

.1 

0 

0 

0

0 

0 

0 

.1 

3.4

.2 

112 

2.5 

.2

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

119.5

September

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

1.9 

48 

4.5 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

54.4

Suspended sediment

Mean 

concentration 

(ppm)

1/500 

650 

1/100

Tons 

per 

day

0 

0 

0 

0 

0

0 

2. 6 

84 

1.2 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

87.8

Total discharge for period Nov. 1 to Sept. 30 (second-foot-days) 

Total load for period Nov. 1 to Sept. 30 (tons) 

 70,529.e

- 1,975,000

I/Estimated or interpolated.
RED RIVER BASIN Continued 

LITTLE BEAVER CREEK NEAR DUNCAN, OKLA.

LOCATION. At gaging station at bridge on county highway, 12J miles above mouth, half a mile ab

Stephens County.

DRAINAGE AREA. 158 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 4,020 parts per million June 29; minimum, 214 p

Total hardness: Maximum, 1,400 parts per million June 29; minimum, 116 parts per million Feb

Water temperatures: Maximum, 84 F July 2, 6, 8-9, 20; minimum, freezing point Jan. 11, 26.

REMARKS. No discharge records available for this station. 

Okla.

Records of specific conductance of 

Chemical analyses, in parts per million, December 1948 to S

Date of collection

Dec. 6-10, 1948 

Dec 11

Dec. 21-24, 27-31 

Jan. 3-8, 10, 1949 

Jan. 11-15, 17-20 

Jan. 21-22, 24, 27 

Feb 7 10

Feb. 14-15, 18-19 

Mar. 11-12, 14-19 

Mar. 21-23, 28, 31 

Mar. 24-25, 29-30 

Vtar y.R 

Mean 

discharge 

(secondfeet)

Temperature

(°F)

PH

Specific 

conductance 

(micromhos at 

25° C.)

1,490 

1,770 

839 

948 

1,050 

1,140 

1,280 

786

957 

601 

351 

1,390 

333 

964 

1,490

1,560 

1,660 

1,290 

1,810 

607

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

149 

168 

108 

120 

139 

161 

198 

115

124 

76 

46 

178

126 

184

156 

164 

137 

166

Magnesium 

(Mg)

61 

61 

35 

45 

44 

39 

40 

19

35 

21 

11 

49

32 

50

61 

63 

49 

61

Sodium 

(Na)

Potassium 

(K)

94 

128 

27 

29 

34 

34 

46 

29

39 

22 

12 

69

39 

76

103 

120 

94 

132

Bicarbonate 

(HC03 )

357 

1/325 

205 

211 

257 

255 

293 

127

213 

138 

92 

290 

123 

216 

286

247 

260 

2/259 

265 

163

Sulfate 

(S04)

245 

241 

233 

301 

300 

334 

396 

250

230 

132 

74 

319 

75 

212 

314

332 

346 

280

328

l/Includes equivalent of 9 parts per million of carbonate (CO,). 

^/Includes equivalent of 16 parts per million of carbonate (CO,).
RED RIVER BASIN--Continued

LITTLE BEAVER CREEK NEAR DUNCAN, OKLA, Con

Chemical analyses, in parts per million, December 1948 to Septem

Date of collection

Apr. 1-2, 4-9, 1949 -

May 21, 27-29, 31 

June 3, 6-7, 9-10 -

June 21-23, 27-28, 30

Sept. 9-10 

Mean 

discharge 

(secondfeet)

Temperature

(°F)

PH

Specific 

conductance 

(micromhos at 

25" C)

1,810 

1,650 

1,800 

1,020 

1,760 

1,670 

902 

489 

1,650 

894

1,620 

2,090 

1,100 

1,720 

1,670 

981 

6,740

1,620 

626 

997 

725 

513

Silica 

(Si08)

Iron 

(Fe)

Calcium 

(Ca)

159 

160 

167 

122 

166 

181 

126 

64 

174 

104

146 

158 

76 

130 

154 

99 

348

129 

70 

101 

87 

53

Magnesium 

(Mg)

64 

57 

61 

33 

58 

66 

30 

15 

60 

31

59 

66 

39 

62 

62 

36 

130

65 

25 

35 

28 

13

Sodium 

(Na)

Potassium 

(K)

143 

122 

136 

55 

148 

52 

19 

13 

94 

41

115 

188 

109 

146 

130 

56 

981

127 

27 

61 

26 

31

Bicarbonate 

(HCO,)

252 

258 

266 

3/208 

276 

248 

200 

131 

288 

191

261 

255 

242 

238 

237 

183 

107

232 

146 

198 

131 

116

Sulfate 

(S04)

306 

313 

305 

226 

339 

333 

181 

93 

272 

148

264 

253 

184 

277 

309 

181 

222

293 

134 

199 

225 

86

C

3/Includes equivalent of £ parts per million of carbonate (CO3).
Temperature (°F) of water, December 1948 to 

Day

1 9

19 ........-.._

99

00

*)A

97

90

29

October November December

<5 (

January

""

"~

"

February

""

3D

March A
146 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

WASHITA RIVER NEAR CLINTON, OKLA.

LOCATION. At gaging station at bridge on U. S. Highway 183, half a mile north of 

Clinton, Custer County, three-quarters of a mile upstream from Beaver Creek, and 3 

miles downstream from Barnitz Creek.

DRAINAGE AREA. 1,990 square miles.

RECORDS AVAILABLE. Sediment records: May 1947 to September 1949.

EXTREMES, 1948-49. Sediment loads:

ton per day Oct. 11-12, 15-19. 

EXTREMES, 1947-49. Sediment loads:

Maximum, 224,000 tons per day May 21; minimum, 0.2

Maximum, 253,000 tons per day May 12, 1947; 

minimum, 0.2 ton per day Oct. 11-12, 15-19, 1948. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in 

Water-Supply Paper 1147.

Suspended sediment, water year October 1948 to September 1949

Day

a

13

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean 

discharge 

(secondfeet)

0.8 

1.0 

1.1 

1.2 

1.1

1.0 

.9 

.9 

.9 

.9

.9 

.8 

.9 

1.0 

1.0

1.0 

.9 

.8 

.8 

.9

1.8 

2.9 

3.3 

3.1 

2.9

2.9 

2.9 

2.7 

2.9 

2.9 

246

293.1

Suspended sediment

Mean 

concentration 

(ppm)

128 

1/132 

136 

154 

188

124 

134 

140 

177 

175

74 

78 

108 

98 

88

88 

82 

86 

109 

136

171 

114 

108 

118 

148

152 

158 

155 

152 

158 

1/28,400

--

Tons 

per

day

0.3 

.4 

.4 

.5 

.6

.3 

.3 

.3

.4 

.4

.2 

.2 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.3

.8 

.9 

1.0 

1.0 

1.2

1.2 

1.2 

1.1 

1.2 

1.2 

18, 900

18,920

November

Mean 

discharge 

(secondfeet)

5,960 

1,330 

174 

92 

54

38 

31 

26 

23 

20

19 

16 

16 

14 

13

13 

13 

12 

11 

11

10 

10 

10 

9.8 

9.8

9.8 

12 

15 

14 

12

7,998.4

Suspended sediment

Mean 

concentration 

(ppm)

11,900 

13, 700 

8,600 

4,700 

1,700

522 

211 

158 

114 

100

1/150 

1/150 

1/150 

194 

187

188 

182 

182 

192 

1/193

194 

202 

208 

208 

232

224 

265 

200 

203 

238

--

Tons 

per 

day

192, 000 

49, 200 

4,040 

1,170 

248

54 

18 

11 

7.1 

5.4

7.7 

6.5 

6.5 

7.3 

6.6

6.6 

6.4 

5.9 

5.7 

5.7

5.2

s: 5

5.6 

5.5 

6.1

5.9 

8.6 

8.1 

7.7 

7.7

246, 884. 3

December

Mean 

discharge 

(secondfeet)

12 

13 

15 

14 

14

14 

13 

14 

13 

12

12 

13 

12 

12 

13

13 

13 

13 

14 

14

14 

14 

14 

15 

15

15 

15 

16 

14 

12 

12

419

Suspended sediment

Mean 

concentration 

(ppm)

181 

196 

172 

138 

156

127 

130 

90 

125 

118

136 

124 

103 

101 

108

114 

94 

88 

73 

90

98 

96 

1/94 

92 

88

84 

100 

98 

90 

112 

142

Tons 

per 

day

5.9 

6.9 

7.0 

5.2 

5.9

4.8 

4.6 

3.4 

4.4 

3. 8

4.4 

4.4 

3.3 

3.3 

3.8

4.0 

3.3 

3.1 

2.8 

3.4

3.7 

3.6 

3.6 

3.7 

3.6

3.4 

4.0 

4.2 

3.4 

3.6 

4.6

129.1

I/Estimated or interpolated.
RED RIVER B\SIN 147

RED RIVER BASIN Continued

WASHITA RIVER NEAR CLINTON, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

2

19

21

23

25

27

90

29

 3f\

31

Total -

2

12

13

i ft

19

|JO

23 ......

24 

25 

26 

27 

28 ------ 

29 

30 

n 

Total -

January

Mean 

discharge 

(secondfeet)

16 

14 

14 

11 

13

13 

16 

15 

13

7

11 

11 

11 

11 

18

30 

31 

20 

10 

7

7 

10 

80 

80 

50

40 

50 

40 

20 

15 

15

699

Suspended sediment

Mean 

concentration 

(PPm)

112 

105 

136 

118 

144

123 

145 

155 

144 

128

124 

174 

152 

109 

182

214 

225 

1/200 

1/200 

180

182 

187 

349 

1/350 

1/300

1/250 

1/200 

1/200 

1/150 

1/150 

1/150

Tons 

per 

day

4.8 

4.0 

5.1 

3.5 

5.1

4.3 

6.3 

6.3 

5.0 

2.4

3.7 

5.2 

4.5 

3.2 

8.8

17 

19 

11 

5.4 

3.4

3.4 

5.0 

75 

76 

40

27 

27 

22 

8.1 

6.1 

6.1

423.7

April

280 

178 

148 

132 

119

115

98 

88 

83 

95

73 

70 

67 

64 

63

60 

56 

53 

52 

51

50 

53 

54 

53 

50

48 

244 

662 

288 

198

3,64.5

1/12, 700 

7,300 

1/3, 800 

1,800 

1,380

1,160 

990 

804 

752 

3,700

604 

554 

366 

374 

388

379 

102 

107 

76 

99

142 

142 

152 

156 

132

137 

20, 200 

38, 200 

16, 900 

11,300

-

9,590 

3,510 

1,520 

641 

444

360 

262 

191 

168 

950

119 

105 

66 

65 

66

61 

15 

15 

11

14

19 

20 

22 

22 

18

18 

13,300 

68,400 

13, 100 

6,040

119,100

February

Mean 

discharge 

(secondfeet)

20 

23 

21 

21 

55

1,880 

3,800 

2,080 

996 

426

306 

248 

184 

178 

142

123 

135 

123 

106 

96

91 

80 

73 

70 

63

62 

62 

76

11, 540

Suspended sediment

Mean 

concentration 

(ppm)

1/150 

1/150 

1/150 

1/150 

1/1, 510

1/20, 700 

10, 900 

13, 400 

7,200 

4,000

2,900 

1/2,350 

1,900 

1,380 

1,320

1/1,210 

1,100 

1,240 

874 

1/596

319 

423 

452 

418 

400

436 

1/436 

807

--

Tons 

per 

day

8.1 

9.3 

8.5 

8.5 

224

105, 000 

112, 000 

75, 200 

19, 400 

4,600

2,400 

1,580 

944 

663 

506

402 

401 

412 

250 

154

78 

91 

89 

79 

68

73 

73 

166

324, 887. 4

May

141 

108 

86 

76 

71

74 

929 

3,050 

2,450 

1,240

483 

324 

256 

219 

205

205 

482 

2,150 

1,920 

4,200

4,210 

2,170 

2,250 

1,580 

566

404 

470 

1,760 

1,510 

2,140 

692

36,421

6,800 

1,900 

1,300 

900 

737

1,860 

31, 800 

23, 800 

24, 600 

20, 800

9,800 

6,900 

5,200 

1/4, 400 

1/3,600

2,800 

17, 700 

22, 000 

24, 500 

15,200

19, 700 

1/13, 800 

22, 200 

22, 600 

12, 000

5,800 

11,900 

18, 100 

22, 900 

14, 900 

9,300

--

2,590 

554 

302 

185 

141

372 

79, 800 

196, 000 

163, 000 

69, 600

12, 800 

6,040 

3,590 

2,600 

2,000

1,550 

23, 000 

128, 000 

127, 000 

172, 000

224, 000 

80, 900 

135, 000 

96,300 

18, 300

6,330 

15, 100 

85, 800 

93, 300 

86, 100 

17,400

1,850,000

March

Mean 

discharge 

(secondfeet)

96 

86 

80 

78 

74

70 

66 

62 

64 

61

59 

58 

56 

54 

53

53 

53

51 

51 

55

313 

145 

114 

83 

71

66 

214 

132 

79 

266 

1,810

4,573

Suspended sediment

Mean 

concentration 

(ppm)

766 

771 

548 

456 

435

1/400 

1/400 

376 

439 

351

338 

1/300 

1/250 

221 

176

184 

164 

173 

169

1/492

11,800 

6,790 

2,400 

1,400 

1,500

700 

16,700 

12,700 

6,500 

16, 000 

27, 600

Tons 

per 

day

198 

179 

118 

96 

87

76 

71 

63 

76 

58

54 

47 

38 

32 

25

26 

23 

24 

23 

73

9,940 

2,660 

740 

314 

292

125 

9,640 

4,520 

1,380 

11, 500 

135, 000

177, 500

June

592 

382 

554 

955 

3,140

3,250 

1,440 

648 

740 

508

986 

446 

362 

362 

297

272 

256 

219 

205 

184

172 

160 

148 

1,400 

3,560

2,980 

663 

435 

333 

248

25, 897

10, 900 

4,500 

11,800 

18, 700 

20,300

12, 400 

17, 900 

11,400 

16, 000 

12, 000

20,200 

6,100 

4,900 

4,400 

5,200

3,100 

2,400 

2,000 

1/2, 100 

1/1, 800

1,150 

945 

986 

24, 400 

20, 000

16, 100 

7,200 

7,600 

5,800 

3,100

-

17,400 

4,640 

17,600 

48, 200 

172, 000

109, 000 

69, 600 

19, 900 

32,000 

16,500

53,700 

7,340 

4,790 

4,300 

4,170

2,280 

1,660 

1,180 

1,160 

894

534 

408 

394 

92, 400 

192, 000

130, 000 

12, 900 

8,920 

5,210 

2,080

1,033,000

I/Estimated or interpolated.
LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued

WASHITA RIVER NEAR CLINTON, OKLA.--Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

Q

10 

22

23

24

25

27 

28 

29 

30 

31 

Total -

July

Mean 

discharge 

(secondfeet)

226 

191 

160 

143 

132

127 

123 

115 

112 

122

166 

160 

178 

191 

131

122 

106 

131 

96 

84

74 

67 

61 

57 

54

50 

47 

43 

45 

66 

42

3,422

i'otal discharge for 

Total load for year

Suspended sediment

Mean 

concentration 

(ppm)

1,720 

1,450 

1/1,200 

1/1,000 

742

765 

730 

686 

720 

1,300

3,800 

2,900 

4,100 

6,700 

4,200

1,320 

1/1,110 

3,800 

2,750 

1,220

710 

554 

484 

280 

236

179 

235 

208 

1,920 

3,320 

1,220

Tons 

per 

day

1,050 

748 

518 

386 

264

262 

242 

213 

218 

428

1,700 

1,250 

1,970 

3,450 

1,490

435 

318 

1,340 

713 

277

142 

100 

80 

43 

34

24 

30 

24 

233 

592 

138

16, 710

year (second-foot-days 

(tons)

August

Mean 

discharge 

(secondfeet)

39 

39 

37 

37 

36

34 

31 

32 

39 

51

42 

34 

31 

28 

26

26 

24 

22 

20 

19

18 

16 

15 

14 

13

12 

12 

11 

11 

11 

18

798

Suspended sediment

Mean 

concentration 

(ppm)

300 

204 

ISO 

132 

123

107 

148 

140 

180 

1,680

670 

1/260 

156 

134 

80

92 

115 

88 

127 

101

70 

68 

70 

82 

92

83 

55 

70 

75 

1/75 

170

Tons 

per 

day

32 

21 

15 

13 

12

9.8 

12 

12 

19 

232

76 

24 

13 

10

5.6

6.5 

7.5 

5.2 

6.9 

5.2

3.4 

2.9 

2.8 

3.1 

3.2

2.7 

1.8 

2.1 

2.2 

2.2 

11

575.1

September

Mean 

discharge 

(secondfeet)

26 

91 

791 

678 

170

68 

42 

30 

27 

25

24 

23 

19 

19 

19

18 

18 

16 

16 

14

13 

13 

14 

14 

13

13 

13 

12 

12 

12

2,263

Suspended sediment

Mean 

concentration 

(ppm)

1,000 

9,330 

20,800 

24, 100 

15, 500

6,800 

2,300 

750 

380 

1/319

258 

216 

128 

120 

129

139 

151 

110 

162 

84

81 

98 

96 

55 

81

72 

120 

50 

100 

124

> ' "'

Tons 

per 

day

70 

2,290 

44, 500 

44,100 

7,120

1,250 

261 

61 

28 

22

17 

13 

6.6 

6.2 

6.6

6.8 

7.3 

4.8 

7.0 

3.2

2.8 

3.4 

3.6 

2.1 

2. 8

2.5 

4.2 

1.6 

3.2

4.0

99,810.7

97,968.5 

390, 000

I/Estimated or interpolated.
RED RIVER BASIN 149

RED RIVER BASIN Continued 

VASBITA RIVER AT CARNEGIE, OKLA.

 CTATIQNr At gaging station at bridge on State Highway 9, 1.300 feet upstream from Running 

Creek, and 2.7 miles east of Carnegie, Caddo County.

R INAGE AREA. 3,230 square miles, including that of Running Creek.

K'XWDS AVAILABLE. Sediment records: May 1947 to September 1949.

XTBEMES, 1948-49. Sediment loads: Maximum, 257,000 tons per day May 18; minimum, 2.1 tons 

per day Oct. 20.

XrREMES, 1947-49. Sediment loads: Maximum, 257,000 tons per day May 18, 1949; minimum, 2.1 

tons per day Oct. 20, 1948.

F'^iRKS. Records of discharge for water year October 1948 to September 1949 given in WaterSupply Paper 1147.

Suspended sediment, water year October 1948 to September 1949

Day

1 ......

2

3 ......

4 

5 ......

6- 

 y

8- 

9 ......

0-. 

1 ......

2 ..- 

3 _ .--

4 

5 ......

6- .. 

*j n _____

8 ... 

9 .... 

0 

I_ 

2~ -----

, >.. 

4 ......

5 ......

«.. .....

7.. .....

8 ......

9 .... 

0. 

1 ......

"otalOctober

Mean

discharge 

(secondfeet)

17

17 

17

17

17

14

14 

14

14

14

14

15

15

15

36

48

22

17

15

15

20

18

17

16

17

17

17

18

18

18

18

561

Suspended sediment

Mean 

concentration 

(ppm)

195

166 

152

132

200

158

136 

138

134

138

118

163

150

171

147

168

180

154

182

52

53

88

58

65

122

256

174

154

166

168

177

Tons 

per 

day

9.0 7. 6

7.0

6.1

9.2

6.0

5.1 

5.2

5.1

5.2

4.5

6.6

6.1

6.9

14

22

11

7.1

7.4

2.1

2.9

4.3

2.7

2.8

5.6

12

8.0

7.5

8.1

8.2

8.6

223.9

November

Mean

discharge 

(secondfeet)

23

1,020 

2,230

1,460

305

175

130 

105

102

77

67

64

62

59

60

56

55

52

49

49

47

47

47

46

45

45

47

52

56

50

"

6,682

Suspended sediment

Mean 

concentration 

(ppm)

404

14,300 

6,100

4,100

4,000

1,400

568 

336

102

96

143

100

106

97

107

126

176

138

169

138

140

150

108

1/129

150

120

134

122

91

124

Tons 

per 

day

25

39 400

36^700

16,200

3,300

662

199 

95

28

20

26

17

18

15

17

19

26

19

22

18

18

19

14

16

18

15

17

17

14

17

96,990

December

Mean

discharge 

(secondfeet)

51

Cfl OU

48

46

43

43

44 

44

43

44

43

42

42

44

43

42

42

42

42

42

42

42

42

42

42

42

42

43

42

42

42

1,343

Suspended sediment

Mean 

concentration 

(ppm)

116

123

118

146

140

91

116 

162

150

158

162

127

166

116

134

130

117

151

122

138

136

171

120

120

142

122

140

185

204

169

175

-

Tons 

per 

day

16

17

15

18

16

11 

14

19

17

19

19

14

19

14

16

15

13

17

14

16

15

19

14

14

16

14

16

21

23

19

20

510

.' /Estimated or interpolated.
150 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

WASHITA RIVER AT CARNEGIE, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

g

12

1 7

1 fl

1 Q

20

on

OO

29

30

Total -

2

3

g

13

20 

21

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

January

Mean 

discharge 

(secondfeet)

44 

43 

43 

42 

44

43 

44 

42 

40 

41

35 

26 

34 

47 

61

62 

62 

53 

42 

42

73 

70 

102 

98 

67

50

68 

96 

77 

69 

72

1,732

Suspended sediment

Mean 

concentration 

(ppm)

179 

164 

150 

154 

118

87 

124 

146 

176 

166

170 

132 

164 

105 

148

169 

152 

97 

112 

93

134 

138 

167 

108 

130

118 

103 

96 

112 

120 

126

Tons 

per 

day

21 

19 

17 

17 

14

10 

15 

17 

19 

18

16 

is' 9 3

13

24

28 

25 

14 

13 

11

26 

26 

46 

29 

24

16 

19 

25 

23 

22 

25

616.3

April

1,030 

876 

357 

246 

208

184 

167 

152 

139 

126

116 

165 

131 

118 

109

98 

99 

98 

98 

95

92 

91 

90 

89 

89

87 

92 

102 

484 

516

6,344

27,600 

20,200 

12,200 

9,700 

7,400

4,800 

1,800 

1,000 

681 

616

538 

686 

484 

517 

497

260 

185 

134 

98 

1/83

68 

77 

76 

83 

115

102 

482 

175 

14,900 

21,300

--

76,900 

47,800 

11,800 

6,440 

4,160

2,380 

811 

410 

255 

210

169 

306 

171 

165 

146

69 

49 

35 

26 

21

17 

19 

18 

20

27

24 

120 

48 

19,500 

29,700

201,800

February

Mean 

discharge 

(secondfeet)

49 

50 

45 

48 

106

466 

1,090 

2,500 

3,090 

3,000

1,260 

629 

508 

406 

328

291 

237 

199 

206 

192

167 

152 

146 

141 

138

136 

136 

136

15,852

Suspended sediment

Mean 

concentration 

(ppm)

68 

40 

46 

34 

1,400

1,800 

4,350 

7,000 

5,000 

4,600

5,100 

4,000 

3,000 

2,400 

1,600

1,200 

800 

692 

539 

982

472 

444 

420 

314 

332

304 

269 

218

Tons 

per 

day

9.0 

5.4 

5.6 

4.4 

400

2,270 

12,800 

47,200 

41,700 

37,300

17,400 

6,800 

4,110 

2,630 

1,420

942 

512 

372 

300 

509

213 

182 

166 

120 

124

112 

99 

80

177,785.4

May

338 

264 

187 

149 

126

110 

100 

286 

1,710 

2,360

1,910 

870 

514 

406 

338

357 

3,600 

35,300 

13,900 

7,220

4,750 

3,550 

3,490 

3,590 

3,030

2,870 

1,810 

1,920 

3,030 

2,960 

2,320

103,365

19, 500 

10,800 

4,950 

2,400 

1,000

439 

442 

4,380 

22,400 

13,200

16,500 

15,000 

11,400 

7,700 

5,000

4,100 

3,400 

2,700 

3,200 

3,800

3,700 

3,500 

3,200 

3,500 

10, 600

10,300 

7,600 

7,500 

12,200 

9,400 

9,300

--

17,800 

7,700 

2,500 

965 

340

130 

119 

2,880 

115,000 

84,000

85,000 

35,200 

15,800 

8,440 

4,560

3,960 

33,100 

257,000 

120,000 

74,100

47,500 

33,600 

30,200 

33,900 

87,100

81,100 

37,100 

38,900 

99,500 

75,000 

58,300

1,491,000

March

Mean 

discharge 

(secondfeet)

138 

138 

157 

147 

152

157 

128 

147 

119 

113

112 

114 

109 

105 

100

98 

96 

95 

94 

111

167 

170 

466 

221 

150

142 

136 

142 

213 

170 

106

4,513

Suspended sedimen*

Mean 

concentration 

(ppm)

244 

223 

289 

266 

244

264 

236 

216 

122 

229

156 

148 

138 

138 

144

140 

114 

118 

110 

1/516

422 

2,570 

8,700 

9,700 

2,400

1,400 

1,200 

500 

3,440 

2,400 

1,300

Tons 

per 

day

91 

83 

123

ioe

10C

112 

8? 

86 

38

7C

41 

46 

41 

3S 

38

3T 

3C 

3C 

28 

15f

19C 

1, 18C 

11,000 

5,790 

97?

53f 

44C 

19! 

1,98C 

1.10C 

372

25, 14C

June

1,760 

1,780 

7,590 

11,000 

4,520

2,360 

2,810 

3,300 

2,820 

3,800

3,560 

2,320 

1,090 

782 

685

573 

480 

422 

393 

366

357 

305 

272 

1,050 

1,720

2,640 

2,830 

2,360 

994 

733

65,672

11,700 

15,900 

10,500 

3,500 

3,400

1/8,400 

1/10,000 

1/14,000 

9,360 

5,600

5,100 

8,800 

8,300 

6,400 

3,200

2,900 

2,600 

2,450 

1,500 

1,000

1/800 

650 

500 

11,700 

11,300

11,300 

7,000 

5,800 

7,400 

5,900

--

55.60C 

76.40C 

216, OOC 

104, OOC 

41.50C

53.60C 

75.80C 

125, OOC 

94, OOC 

57.40C

49, OOC 

55.20C 

24,40C 

13.50C 

5.92C

4,48C 

3,63C 

2,79C 

1.59C 

98f

772 

53f 

36V 

33.30C 

52.60C

80.50C 

53.50C 

37.00C 

19, 80C 

11, 70C

1,352, OOC

I/Estimated or interpolated.
RED RIVER BASIN 

RED RIVER BASIN--Continued 

WASHITA RIVER AT CARNEGIE, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

2

Q

1 o

1 fl

19

21

23

27 

28 

29 

30 

31 

Total -

July

Mean 

discharge 

(secondfeet)

.531 

440 

384 

348 

314

288 

272 

248 

232 

225

225 

225 

256 

248 

264

280 

225 

203 

181 

189

169 

154 

143 

135 

130

125 

124 

114 

97 

92 

91

6,952

Suspended sediment

Mean 

concentration 

(ppm)

3,650 

2,300 

1,200 

922

588

541 

440 

410 

374 

321

446 

477 

538 

444 

494

822 

463 

356 

254 

207

241 

294 

370 

256 

188

917 

266 

1/192 

119 

357 

132

Tons 

per 

day

5,240 

2,730 

1,240 

866 

499

421 

323 

275 

234 

195

271 

290 

372 

298 

352

621 

292 

195 

124 

106

112 

122 

143 

93 

66

309 

89 

59 

31 

89 

32

16,090

August

Mean 

discharge 

(secondfeet)

110 

102 

85 

80 

78

77 

74 

85 

87 

218

135 

106 

95 

81 

75

79 

68 

60 64' 

61

58 

56 

52 

52 

51

50 

52 

51 

51 

52 

56

2,401

Suspended sediment

Mean 

concentration 

(ppm)

66 

114 

67 

52 

98

106 

101 

144 

131

550

260 

272 

82 

97 

98

108 

144 

103 

122 

182

244 

188 

203 

134 

180

183 

174 

132 

143 

148 

153

Tons 

per 

day

20 

31 

15 

11

21

22 

20 

33 

31 

324

95 

78 

21 

21 

20

23 

26 

17 

21 

30

38 

28 

28 

19 

25

25 

24 

18 

20 

21 

23

1,150

September

Mean 

discharge 

(secondfeet)

57 

67 

176 

802 

939

488 

225 

145 

112 

93

83 

74 

68 

68 

67

65 

64 

62 

60 

57

55 

52 

50 

49 

47

47 

45 

44 

43 

42

4,246

Suspended sediment

Mean 

concentration 

(ppm)

170 

348 

1,160 

16,300 

14,500

11,800 

4,800 

1,100 

456 

292

170 

126 

96 

100 

132

148 

158 

156 

134 

120

146 

122 

97 

69 

272

116 

92 

114 

94 

48

-

Tons 

per 

day

26 

63 

552 

35, 300 

36, 700

15,600 

2,920 

431 

138 

73

38 

25 

18 

18 

24

26 

27 

26 

22 

18

22 

17 

13 

9.1 

35

15 

11 

14 

11

5.4

92, 197. 5

Total discharge for year (second-foot-days) 

Total load for year (tons) 

 219,663

 3,455,000

I/Estimated or interpolated.

256683 O - 53 - 11
RED RIVER BASIN Continued 

WASHITA RIVER NEAR TABLER, OKLA.

LOCATION. At gaging station at bridge on county highway, 1 mile downstream from Little Washita Riv

upstream from Winter Creek. 

DRAINAGE AREA. 4,760 square miles. 

RECORDS AVAILABLE. Chemical analyses: September 1946 to September 1949.

Water temperatures: September 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,240 parts per million Oct. 21-29; minimum, 221 pa

Total hardness: Maximum, 757 parts per million Jan. 1-10; minimum, 127 parts per million May 22-

Water temperatures: Maximum, 85* F July 21, Aug. 15; minimum, freezing point on several days in 

EXTREMES, 1946-49. Dissolved solids: Maximum, 1,390 parts per million Nov. 5-10, 1947; minimum, 2

Total hardness: Maximum, 851 parts per million Jan. 1-10, 1948; minimum, 127 parts per million M

Water temperatures: Maximum, 88* F Aug. 18, 1948; minimum, freezing point on many days in winte

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 11-13, 18-20

Oct 21 29 "-

Nov. 11-12, 14-15 

Jan. 1-10, 1949 

Jan. 21-22, 27-31 

.Ton 23.9.R -- 

Mean 

discharge 

(secondfeet)

43.7 

78.5 

60.6 

102 

100 

777 

148 

125 

117

113 

98.5 

105 

105 

153 

187 

R34

Temperature

(°F)

PH

8.2 

8.0 

7.8

Specific 

conductance 

(micromhos at 

25* C )

1,760 

1,400 

1,810 

1,360 

1,440 

616 

861 

1,180 

1,230

1,400 

1,500 

1,420 

1,600 

1,530 

1,560 

1 nan

Silica 

(SiO.)

25 

22 

16

Iron 

(Fe)

0.00 

.00 

.00

Calcium 

(Ca)

165 

159 

174 

152 

163 

80 

109 

144 

144

154 

156 

148 

216 

208 

215 

144

Magnesium 

(Mg)

61 

45 

58 

43 

45 

17 

24 

32 

38

45 

50 

51 

53 

47 

48 

35

so- sr

dium f8" 

(Na\ slum 

(Na) (K)

153 

97 

166 

109 

108 

25 

46 

78 

79 8.2

96 

99 1 11 

99 

77 

86 I 6.8 

107

as

Bicarbonate 

(HCO,)

219 

208 

211 

169 

1/228 

156 

2/186 

S/198 

187

148 

144 

121 

301 

297 

4/296 

22(1

Sulfate 

<SO«)

443 

392 

482 

442 

386 

141 

214 

319 

334

408 

449 

469 

473 

470 

477 

308

Chlo

ride 

(Cl)

25

15

25

13

16

3

6

11

11

16

15

14

13

12

16

5

I/Includes equivalent of 15 parts per million of carbonate (CO,). 

2/Includes equivalent of 9 parts per million of carbonate (CO,). 

I/Includes equivalent of 12 parts per million of carbonate (CO,). 

4/Includes equivalent of 8 parts per million of carbonate (CO,).
June 1-2, 9-10 

-Time 97-3fl_ .-

2,860

1,932 

600 

404 

319 

251 

397

478 

273 

315 

810 

1,419 

22,120 

9,397 

5,046

4,498 

7,958 

4,490 

1,335 

893 

7. fifid

1,470

662

615

949

1,210

1,390

1,480

1,360

1,150

1,370

1,470

1,350

913

340

447

666

639

3*4

553

1,000

1,280

636

..

--

8.0

.._

204

99

88

134

178

203

211

215

167

188

198

189

148

49

38

106

89

50

74

131

166

86

44

16

16

28

36

48

51

50

36

44

61

57

28

10

7.8

22

18

9.0

15

34

51

19

78

21

19

35

47

54

82

31

43

72

57

41

146

493

20

12

19

48

50

23

16

72

280

160

144

176

245

296

286

238

199

5/261

4/196

200

171

98

120

145

127

117

135

226

252

146

444

188

165

287

386

454

494

494

393

466

535

499

315

81

111

205

204

72

145

314

431

188

1

1

4/Includes equivalent of 8 parts per million of carbonate (CO,). 

§/Includes equivalent of 7 parts per million of carbonate (CO,).
LOWER MISSISSIPPI RIVER BASIN

,

£

So'

2 CJ *g u

S3 rt

 §

 o

?

1

5

c

!

c

c

0.

S

<

sl 11

1Ee 

8 

S

*j i g

|8|

ifs

I

e h sx g&3

§

*<!> * 

u§." §

JNl

gSs

i +J j»

5 iS

o ® ^

22ST 

 u^

ill

ill

1 Q) rf-^

< rtO

slM

i|s

i «^Si?

sll 0 nS

yi

ii

I!

tig

a

S 2h 

M i.

0> T3

i g> C 53-

2 «3 o S O J3 o> <S 

y w

Date of collection

cco>«xco OiOioo mm^o

o o> o os oa TJ* M «o o TJ* o

^ oa e- «o os e*a c- os c*a w ^

O'tfOSCC TT O 00 (DCOlOM

OOO'-" lOOOt- SDrHQO

oo e*a o> oa eo in to »-i o «5 o

OOO*-I(O OS O Tj* lOT-i'^tt- lO ^ Q M 10 (O tOOCO^* 

OO OS (D O lO lO OO OS C«4 (D « 

IO C- OS O OS OS OS OS iTi C- OS

oooo mom moioits

COt-D-CO NWM TOTTMrH

o

e*4^into c- «o «o c- <M 10 to

t-«-lin^ frHf ^ir-I^OO

SS^I SS2 SSS2

0

eo i/i (D «o CD <o c- oa TJ* «o

CD

oo m M m »-i Oi oo 10 ^ os o 

oa ^ «o to c- TJI o m c>a e*a 10

ISsS sss § s sS

: i : i i§ : : : \ ;

o

: i : : \»\ : : : :

OS Q O O O O O O in O Q

ouS^oo incoiH os ^-i 10 ?3

i : : i !^ : : : '

D-OOOD- oomoo o> o> o> o> 

osio^*esi e*4e>4«-i MTTIH*-!

o>

S on °° 

^.oSS 3^7 °~1 

SfSf^S!' bb bb M 'S.'Si'S.'S. ^ gg-g 333 Sr 5? So

1-3 Hj 1-3 1-3 <<< Ol IB M M

1

«* 

,-1

&

S

^-1

t- 

^

^

in

!

CO

1

t- 

^

(N

OS

:

1

tco

!

So

Weighted average -
Temperature (° F ) of water, water year October 1

Day

19

1 ft

?'**

OO

25

97

28

on

October

64 

52 

58 

58 

57

62 

53 

48 

48 

55

58 

56 

54 

51 

50

53 

52 

55 

57 

61 

59

--

November

61 

61 

51 

58 

54

53 

47 

50 

44 

50

45 

50 

44 

47 

52

57 

49 

51 

44 

47

42 

40 

39 

41 

43

45 

46 

42 

38 

38

48

December

45 

40 

48 

44

42 

41 

38 

43 

48

38 

47 

44 

48 

57

46 

48 

48 

44 

41

43 

46 

43 

43 

38

36 

36 

41 

37 

34 

36

43

January

38 

43 

35 

32

35 

36 

39 

42 

32

32 

32 

34 

36 

43

40 

32 

34 

32 

32

36 

33 

36 

37 

32

32 

32 

32 

32 

32 

32

35

February

32 

32 

33 

32 

32

32 

32 

35 

34 

34

37 

40 

40 

38 

38

40 

40 

42 

47 

48

44 

45 

50 

54 

49

49 

48 

45

40

March

45 

45 

44 

49 

52

55 

54 

54 

51 

46

47 

49 

46 

46 

45

46

53

48

53 

53

55 

59 

46

54 

55 

56 

59 

59 

55

51

A
RED RIVER BASIN Continued 

WASHITA BIVER NEAR DDRWOOD, OKLA.

LOCATION. At gaging station at Mulky Bridge, on State Highway 18, li miles downstream from Caddo 

DRAINAGE AREA. 7,310 square miles.

RECORDS AVAILABLE. Chemical analyses: Hay 1944 to September 1949.

Water temperatures: April 1947 to September 1949. 

EXTREMES, 194S-49. Dissolved solids (December 1948-June 1949): Maximum. 866 parts per million Ja

Total hardness (December 1948-June 1949): Maximum, 559 parts per million Jan. 11-20; minimum, 1

Water temperatures: Maximum, 85° F July 12; minimum, freezing point on several days in winter 

EXTREMES, 1944-49. Dissolved solids: Maximum, 936 parts per million July 21-25, 30-31, 1944; min

Total hardness; Maximum, 574 parts per million July 21-25, 30-31, 1944; minimum, 114 parts per 

Water temperatures, 1947-49: Maximum, 85° F July 24, 1948, July 12, 1949; minimum, freezing po

REMARKS. Records of discharge for water year October 194S to September 1949 given in Water-Supply 

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, October 1948 to Ju

Date of collection

Oct. 11-20, 1948 

Jan. 1-10, 1949 

Feb 21 28

Mar 91 -SI __ -- .

Mean 

discharge 

(secondfeet)

105 

193 

216 

189 

195 

261 

305 

636

1,073 

653 

3,485 

3,375 

2,494 

738 

536

9 575

Temperature

<°F)

PH

Specific 

conductance 

(micromhos at 

25° C )

1,020 

927 

1,100 

1,160 

1,210 

1,250 

1,200 

693

857 

1,130 

508 

505 

556 

1,010 

1,050

R51

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

76 

74 

94 

100 

105 

140 

144 

76

106 

132 

59 

64 

66 

120 

109

R9

Magnesium 

(Mg)

53 

36 

45 

49 

52 

51 

43 

24

30 

37 

16 

15 

18 

37 

49 

95

dtam tfs- 

(Nax slum 

(Na) (R)

84 

65 

73 

77 

76 

67 

66 

39

40 

68 

25 

22 

25 

27 

46

33

Bicarbonate 

(HCO,)

230 

i/161 

196 

206 

205 

2/289 

37296 

213

2/216 

257 

163 

148 

177 

4/267 

196 

9f>Q

Sulfate 

(SO,)

239 

202 

245 

279 

294 

301 

289 

122

195 

270 

81 

104 

95 

235 

293 

135

Chl

rid

(C

I/Includes equivalent of 8 parts per million of carbonate (CO,). 

2/Includes equivalent of 6 parts per million of carbonate (CO,). 

2/Includes equivalent of 9 parts per million of carbonate (CO,). 

4/Includes equivalent of 12 parts per million of carbonate (CO,).
Apr. 1-10 

Apr. 11-16 - 

Apr. 17-20 

Apr. 21-30 

May 1, 7-8 - 

May 2-4 ------

May 5-6, 9-10- 

May 11-16 - 

May 17-20 

May 21-27 

May 28-31 - 

June 1-10 

June 11-16 

June 17-20 -

943

1,022

551

698

4,507

8,640

1,790

1,571

7,692

15,730

7,355

6,744

11,630

2,798

1,030

701

971

1,070

952

369

578

856

458

385

665

551

457

3/Includes equivalent of 9 parts per million of carbonate (CO,). 

5/Includes equivalent of 7 parts per million of carbonate (CO,).

134

75

97

100

105

40

62

85

48

41

82

56

50

76

5/257 

3/184 

191 

220 

234 

142 

171 

170 

148 

122 

158 

144 

146 

200

270

148

49

100

217

70

73

155

135

78

158
158 LOWER MISSISSIPPI RIVER BASIN

 o V

0) 1

5 i

3 B ffl O

s 

-U

o

1

Ia a, m _

IS S n

Specific conductan (micromh 25° Cat

ust

Chloride (Cl)

8

<j

5S

!a S 5

>.

 ->

<o a. 

ig^l"

0

H

I s§-

1||'3

jer

Chloride (Cl)

5

O B

*l|«

I

11131 ! " 1S1 1S1§1 11I2!

i i-t i i i iimii 11-^11 it-iii

ooooo ooooo oot-ooeo ooooo

c-ojc-oo^* o co ^" 1-1 eo e>a eo »*3 <*3 o oo o »-H *o <o

*

ooooo oooooca c-t-oo^" t-o^oo** 

1-1 co eo CQ CQ c^c^^mm incocDcco tc t- t- co oo

sssss E2^2s§ i i : i i : i : : :

OOOOO OOOOO Illll illlj

3 i : i : 13::::

to § So ^ « SeocSSt^ !

irtTOtDOOOO C-OOCOOOOO

1-1 CO ^ tO t> OOOOO O

ooooo oooooo

S

t~CO*4*U3 CO i-l ^ d3 tO ^ 

O^-l'-t'-l O^-Hf-lOOO

: : : : : ::::::

SS5SS SSSSgS

fills 5§l§Sa
Temperature (' F ) ot water, water year October 194

Day

1 

12- - -

1 fi

21

99

OE

26

97

01

October

64

November

65

AQ

December

41

January

38

on

en

on

09

February

32

00

March

49

Ap
LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

BARNITZ CREEK NEAR ARAPAHO, OKLA.

LOCATION. At gaging station on county road bridge, half a mile downstream from junction

of East and West Barnitz Creeks, 44 miles west of Arapaho, Custer County, and 6 miles

upstream from mouth. 

DRAINAGE AREA. 247 square miles.

RECORDS AVAILABLE. Sediment records: May 1947 to September 1949 (discontinued). 

EXTREMES, 1948-49. Sediment loads: Maximum, 55,800 tons per day May 21; minimum, no

flow on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum, 55,800 tons per day May 21, 1949; minimum,

no flow on many days. 

REMARKS. Figures of daily discharge not considered sufficiently accurate for publication.

Suspended sediment, water year October 1948 to September 1949

Day

q

D

g

13

16 

17 

18 -- 

19 

20 

21 

22 

23 

24 -- 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean 

discharge 

(secondfeet)

67

67

Suspended sediment

Mean 

concentration 

(ppm)

7,850

-

Tons 

per 

day

1/1,420

1,420

November

Mean 

discharge 

(secondfeet)

1,670 

54 

6 

2.8 

2.1

1.8 

1.5 

1.3 

1.1 

.8

.6 

.4 

.2

1, 742. 7

Suspended sediment

Mean 

concentration 

(ppm)

7,440 

3,680 

1/1,000 

1/500 

1/250

1/150

--

Tons 

per 

day

2/33, 500 

2/536 

16 

3.8 

1.4

.7 

.6 

.5 

.4 

.3

.2 

.2 

.1

34, 060. 2

December

Mean 

discharge 

(secondfeet)

-

Suspended sediment

Mean 

concentration 

(ppm)

-

Tons 

per 

day

-

I/Estimated or interpolated.

2/Sedimerit discharge computed by subdividing day.
RED RIVER BASIN 161

RED RIVER BASIN Continued

BARNITZ CREEK NEAR ARAPAHO, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

9

g

15 

20

99

24

25

no

29

Total -

3

12

21

22 --- 

23 

24 ----- - 

25 

26 

27 - 

28 - 

29 

30 

31 . 

Total -

January

Mean 

discharge 

(secondfeet)

4.6 

4.8 

5.1

5 

2

7.8 

146 

50

10

235.3

Suspended sediment

Mean 

concentration 

(ppm)

152 

112 

82

1/80 

1/80

1/500 

1/1, 000 

1/200

1/100

-

April

26 

19 

15 

12 

10

8.6 

7.6 

6.4 

11 

4.5

2.8 

2.6 

2.5 

2.2 

1.9

1.5 

.4 

.2 

.2 

.1

.0 

.4 

.4 

1.3 

1.2

1.2 

6.3 

16 

10 

5

183.3

2,300 

448 

166 

171 

177

160 

132 124- 

606 

300

124 

114 

192 

122 

104

92 

102 

101 

118 

96

90 

88 

68 

84 

70

84 

92 

153 

86 

91

-

Tons 

per 

day

1.9 

1.5 

1.1

1.1 

.4

11 

394 

27

2.7

440.7

161 

23 

6.7 

5.5 

4.8

3.7 

2.7 

2.1 

2/18 

3.6

.9 

.8 

1.3 

.7 

.5

.4 

.4 

.3 

.4 

.3

.2 

.3 

.3 

.3 

.2

.3 

1.6 

6.6 

2.3 

1.2

250.4

February

Mean 

discharge 

(secondfeet)

28

252 

462 

927 

414 

152

120 

73 

56 

34 

19

16 

19 

14 

11 

9

8 

7 

6 

5.1 

4.6

4.1 

3.7 

9

2,653.5

Suspended sediment

Mean 

concentration 

(ppm)

1/3, 000

1/3, 000 

7,580 

6,270 

2,160 

1/2, 000

1/1,900 

1/1, 600 

1/1, 400 

1/1, 200 

1/900

600 

I 1/400

126 

96 

121 

146 

171

1/200 

250 

262

--

May

2.5 

1.0 

.5

9.2 

265 

117 

7 

3

1.5 

.5

13 

20

2 

112 

482 

915 

553

1,400 

316 

521 

141 

65

39 

33 

23 

70 

46 

25

5, 183. 3

94 

V 1/80

1/5, 000 

12, 300 

9,660 

1,000 

400

236 

163

2,930 

2,980

1/550 

1/30, 000 

25,700 

10, 500 

8,180

14,800 

4,820 

12, 700 

4,300 

1/1, 800

1/1, 400 

1/1, 000 

1/600 

2,900 

950 

1/500

-

Tons 

per 

day

227

2,040 

2/9,450 

2/15,700 

2/2,410 

821

616 

315 

212 

110 

46

26 

(20 

15 

12 

9.7

2.7 

1.8 

2.0 

2.0 

2.1

2.2 

2.5 

6.4

32,051.4

0.6 { ; 

124 

2/8, 820 

2/3, 050 

19 

3.2

1.0 

.2

2/103 

2/161

3.0 

9,070 

2/33, 500 

2/25,900 

2/12,200

2/55,800 

2/4, 110 

17, 900 

1,640 

316

147 

89 

37 

548 

118 

34

173,694.3

March

Mean 

discharge 

(secondfeet)

7 

5.9 

5.1 

4.5 

4.0

3.6 

3.3 

3.0 

2.7 

2.5

2.3 

2.1 

1.9 

1.8 

1.7

1.6 

1.5 

1.4 

1.3 

5.0

142 

25 

6 

5 

4

4 

13 

4.6 

4 

152 

205

626.8

Suspended sediment

Mean 

concentration 

(ppm)

72 

80 

90 

93 

119

94 

94 

57 

86 

91

i/ioo

108 

130 

1/1, 000

15,200 

10, 800 

1,200 

342 

137

130 

9,500 

1,400 

220 

18,700 

13,200

--

Tons 

per 

day

1.4 

1.3 

1.2 

I.I 

1.3

.9 

.8 

..5 

.6 

.6

.6 

.6

.5 

.5

.4 

.4 

.4 

.5 

14

5,820 

3/729 

19 

4.6 

1.5

1.4 

333 

17 

2.4 

2/7, 680 

2/7, 330

21,966.0

June

86 

28 

4.0 

40 

181

26 

12 

22 

13 

13

7.0 

6.6 

6.3 

5.4 

3.6

2.3 

1.4 

.8 

.3 

.1

31 

238

85 

6.5 

2.3 

.9 

.4

822.9

1/8,700 

1,500 

502 

25,800 

25,400

2,490 

1/350 

500 

700 

300

194 

241 

1/230 

226

1/200

1/3, 000 

9,100

1/5, 000 

1/500 

1/200 

1/150 

1/100

--

T 2,020 

113 

5.4 

2/2, 780 

2/12,400

2/175 

11 

30 

25 

11

3.7 

4.3 

3.9 

3.3 

1.9

1.2 

.8 

.4 

.2 

.1

251 

5,850

1,150 

8.8 

1.2 

.4 

.1

24,851.7

I/Estimated or interpolated. 2/3ediment discharge computed by subdividing day.
162 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued

BARNITZ CREEK NEAR ARAPAHO, OKLA.--Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 9

20

22 -----

25 

26 

27 

28 

29 

30 

31 

Total -

July

Mean 

discharge 

(secondfeet)

19

42

48 

7.6

116.9

Suspended sediment

Mean 

concentration 

(ppm)

1/3,000

1/5, 400 

1/4, 900 

79

-

Tons 

per 

day

154

613 

634 

1.6

1,402.6

August

Mean 

discharge 

(secondfeet)

--

Suspended sediment

Mean 

concentration 

(ppm)

--

Tons 

per 

day

-

September

Mean

discharge 

(secondfeet)

130 

96 

3.0

229.0

Suspended sediment

Mean 

concentration 

(ppm)

9,250 

5,980 

500

Tons 

per 

day

2/3,250 

2/1,550 

4.0

4, 804. 0

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day,
RED RIVER BASIN 163

RED RIVER BASIN Continued 

POND CREEK NEAR FORT COBB, OKLA.

LOCATION. At gaging station at bridge on county road, 2.7 miles north of Fort Cobb,

Caddo County, and 5 miles upstream from mouth. 

DRAINAGE AREA. 320 square miles.

RECORDS AVAILABLE. Chemical analyses: Hay 1946 to July 1948. 

Water temperatures: October 1946 to July 1948. 

Sediment records: Nay 1947 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 110,000 tons per day May 18; minimum, 1.7

tons per day Sept. 14. 

EXTREMES, 1947-49. Sediment loads: Maximum, 110,000 tons per day May 18, 1949; minimum,

1.4 tons per day Sept. 9, 14, 24, 1947. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1147.

Suspended sediment, water year October 1948 to September 1949

Day

to

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean 

discharge 

(secondfeet)

10 

10 

9.8 

9.6 

9.4

8.9 

9.6 

9.6 

9.8 

10

10 

10 

9.8 

11 

10

10 

9.6 

9.7 

10 

12

13 

14 

13 

12 

12

12 

12 

13 

13 

15 

15

342.8

Suspended sediment

Mean 

concentration 

(ppm)

104 

114 

87 

106 

117

108 

92 

100 

104 

107

140 

112 

366 

126 

144

132 

114 

116 

110 

109

112 

124 

129 

125 

138

148 

147 

127 

136 

153 

139

Tons 

per 

day

2.8 

3.1 

2.3 

2.8 

3.0

2.6 

2.4 

2.6 

2.8 

2.9

3.8 

3.0 

9.7 

3.7 

3.9

3.6 

2.9 

3.0 

3.0

3.5

3 '.i9

.5 

.0 

.5

.8 

.8 

.5 

4.8 

6.2 

5.6

119.7

November

Mean 

discharge 

(secondfeet)

17 

20 

18 

18 

18

19 

19 

19 

20 

20

20 

21 

21 

21 

21

21 

21 

21 

21 

21

23 

23 

23 

24 

24

24 

25 

34 

35 

26

658

Suspended sediment

Mean 

concentration 

(ppm)

106 

116 

133 

138 

1/137

1/137 

136 

162 

134 

136

164 

180 

150 

149 

122

173 

170 

180 

184 

153

149 

159 

161 

182 

156

169 

192 

207 

143 

204

Tons 

per 

day

4.9 

6.3 

6.5 

6.7 

6.7

7.0 

7.0 

8.3 

7.2 

7.3

8.9 

10 

8.5 

8.4 

6.9

9.8 

9.6 

10 

10 

8.7

9.3 

9.9 

10 

12 

10

11 

13 

19 

14

14

280.9

December

Mean 

discharge 

(secondfeet)

24 

24 

24 

24 

24

23 

24 

24 

24 

23

24 

24 

24 

25 

26

25 

24 

24 

25 

24

25 

24 

24 

25 

26

25 

25 

27 

27 

25 

24

760

Suspended sediment

Mean 

concentration 

(ppm)

140 

210 170' 

194 

204

203 

160 

150 

161 

152

124 

125 

106 

104 

93

94 

56 

66 

64 

74

71 

111 

108 

88 

102

122 

95 

92 

71 

73 

104

-

Tons 

per 

day

9.1 

14 

11 

13 

13

13 

10 

9.7 

10 

9.4

8.0 

8.1 

6.9 

7.0 

6.5

6.3 

3.6 

4.3 

4.3 

4.8

4.8 

7.2 

7.0 

5.9 

7.2

8.2 

6.4 

6.7 

5.2 

4.9 

6.7

242.2

I/Estimated or Interpolated.
164 LOWER MISSISSIPPI RIVER BASIN

RED RIVER BASIN Continued 

POND CREEK NEAR FORT COBB, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 

2 

3___...

4 

5 

6 

7 

9____ _

10 

11 

12------

13 __ _

14 

15 

16 

17 

18- - 

19 

20 

9161------

22 

00fiO------

24 

25------

26------

27------

28------

29------

30------

31 ....,. __

Total -

1 _ 

2

*

------ 

3 __ ___

4 

5 

6 

7 

------

9 

10 

11 

1 !£- *--- 9

1 j. 33 ---.-.

14 

15 

16 

17 

1 10------ fl

1 IB------ Q

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 - 

31 

Total -

January

Mean 

discharge 

(secondfeet)

26 

27 

30 

31 

26

28 

29 

29 

29 

26

22 

26

27 

42 

77

103 

35 

35 

30 

30

35 

35 

120 

143 

35

40 

37 

33 

30 

26 

25

1,267

Suspended sediment

Mean 

concentration 

(ppm)

64 

1/58 

51 

84 

86

108 

58 

64 

83 

52

130 

96 

110 

160 

279

340 

254 

148 

128 

192

124 

103 

1,090 

1,270 

124

122 

200 

168 

92 

94 

90

--

Tons 

per 

day

4.5 

4.2 

4.1 

7.0 

6.0

8.2 

4.5 

5.0 

6.5 

3.6

7.7 

6.8 

8.0 

18 

58

95 

24 

14 

10 

16

12

9.7 

353 

489 

12

13 

20 

15 

7.4 

6.6 

6.1

1,254.9

April

33 

52 

60 

46 

43

41 

38 

37 

38 

62

78 

42 

39 

36 

32

32 

32 

31 

31 

34

34 

36 

35 

34 

34

34 

37 

42 

44 

38

1,205

119 

185 

170 

118 

130

124 

116 

80 

56 

1,730

1/1,990 

272 

240 

178 

180

183 

145 

140 

134 

176

140 

92 

152 

132 

107

98 

112 

117

1/152 

186

"

11

26 

28 

15 

15

14 

12 

8.0 

5.7 

290

419 

31 

25 

17 

16

16 

13 

12 

11 

16

13 

8.9 

14 

12 

9.8

9.0 

11 

13 

18 

19

1,128.4

February

Mean 

discharge 

(secondfeet)

25 

27 

31 

54 

70

174 

365 

1,060 

240 

87

69 

64 

82 

71 

62

60 

52 

50 

49 

49

48 

49 

49 

54 

50

45 

54 

52

3,142

Suspended sediment

Mean 

concentration 

(ppm)

107 

122 

164 

196 

350

2,050 

4,740 

6,560 

2,880 

1,560

500 

252 

363 

282 

33.6

196 

168 

160 

211 

130

130 

138 

134 

142 

105

95 

140 

1/128

-

Tons 

per 

day

7.2 

8.9 

14 

29

65

961 

4,670 

18,800 

1,870 

367

93 

43 

80 

54 

56

32 

24 

22 

28 

17

17 

18 

18 

21 

14

12

20 

18

27,380.1

May

40 

35 

28 

27 

27

26 

28 

37 

32 

27

25 

25 

24 

27 

30

29 

4,720 

9,840 

1,080 

1,380

494 

84 

165 

109 

70

977 

355 

80 

877 

180 

79

20,957

178 

244 

96 

121 

176

126 

96 

106 

68 

160

1/146 

132 

176 

117 

138

130 

7,400 

4,140 

6,210 

6,280

4,870 

1,000 

5,140 

3,040 

700

7,120 

4,920 

1,390 

7,090 

3,000 

1,100

--

19 

23 

7.2 

8.8 

13

8.8 

7.3 

11 

5.9 

12

9.8 

8.9 

11 

8.5 

11

10 

94,300 

110,000 

18,100 

23,400

6,500 

227 

2,290 

895 

132

18, 800 

4,720 

300 

16,800 

1,460 

234

298 333 2

March

Mean 

discharge 

(secondfeet)

45 

54 

50 

45 

43

42 

38 

37 

37 

37

36 

35 

35 

34 

33

33 

35 

34 

33 

33

96 

78 

51 

44 

40

50 

56 

40 

36 

35 

34

1,329

Suspended sediment

Mean 

concentration 

(ppm)

115 

142 

89 

1/104 

119

108 

90 

73 

88 

57

92 

110 

94 

113 

103

118 

83 

61 

50 

92

641 

370 

194 

156 

1/150

144 

1/162 

180 

122 

1/116 

110

~

Tons 

per 

day

14 

21 

12 

13 

14

12 

9.2 

7.3 

8.8 

5.7

8.9 

10 

8.9 

10 

9.2

11

7.8 

5.6 

4.5 

8.2

166 

78 

27 

18 

16

19 

24 

19 

12 

11 

10

601.1

June

106 

82 

965 

114 

64

55 

51 

257 

525 

684

377 

92 

134 

74 

55

50 

46 

42 

41 

41

36 

32 

29 

197 

382

127 

48 

38 

34 

31

4,809

2,880 

3,000 

6,020 

480 

485

322 

312 

6,150 

9,180 

7,960

8,040 

1,260 

2,070 

723 

488

1/434 

381 

253 

278 

248

176 

135 

168 

8,720 

10,600

1,680 

1,320 

568 

420 

526

"

824 

664 

15,700 

148 

84

48 

43 

4,260 

13,000 

14,700

8,150 

312 

749 

144 

72

59 

47 

29 

31 

27

17 

12 

13 

4,650 

10,900

575 

171 

58 

39 

44

75, 570

I/Estimated or interpolated.
RED RIVER BASIN 165

RED RIVER BASIN Continued 

POND CREEK NEAR FORT COBB, OKLA. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

Q

12

i tt

on

99

94

25

28 

29 

30 

31 

Total -

July

Mean 

discharge 

(secondfeet)

28 

27 

26 "26 

25

25 

23 

22 

23 

26

26 

26 

27 

24 

22

22 

22 

20 

18 

17

17 

17 

16 

17 

17

16 

16 

16 

15 

15 

15

652

Suspended sediment

Mean 

concentration 

(ppm)

317 

224 

214 

352 

316

258 

245 

223 

258 

224

1/200 

177 

182 

172 

146

127 

102 

193 

190 

140

156 

168 

154 

168 

152

174 

140 

121 

104 

98 

1/104

--

Tons 

per 

day

24 

16 

15 

25 

21

17 

15 

13 

17 

16

14 

12 

13 

11 

8.7

7.5 

6.1 

10 

9.2 

6.4

7.2 

7.7 

6.7 

7.7 

7.0

7.5 

6.0 

5.2 

4.2 

4.0 

4.2

344.3

August

Mean 

discharge 

(secondfeet)

15 '14 

13 

13 

13

12 

12 

13 

16 

51

23

17 

15 

16 

15

14 

14 

13 

14 

13

12 

11 

11 

10 

9.6

9.3 

9.6 

9.8 

9.4 

9.8 

11

438.5

Suspended sediment

Mean 

concentration 

(ppm)

109 

74 

84 

126 

120

91 

100 

1/100 

188 

538

304 

312 

556 

506 

220

192 

264 

172 

152 

200

118 

124 

110 

133 

90

262 

106 

156 

150 

156 

91

--

Tons 

per 

day

4.4 

2.8 

2.9 

4.4 

4.2

2.9 

3.2

3.5 

8.1 

76

19 

14 

23 

22 

8.9

7.3 

10 

6.1 

5.7 

7.0

3.8 

3.7 

3.3 

3.6 

2.3

6.6 

2.7 

4.1 

3.8 

4.1 

2.7

276.1

September

Mean 

discharge 

(secondfeet)

19 

12

45 

45 

20

17 

16 

16 

16 

16

16 

15 

13 

12 

14

16 

15 

14 

13 

12

11 

10 

9.8 

9.3 

9.4

9.2 

8.9 

9.6 

9.6 

10

458.8

Suspended sediment

Mean 

concentration 

(ppm)

204 

73 

865 

914 

560

290 

142 

173 

162 

122

160 

108 

116 

52 

73

140 

1/142 

144 

134 

94

152 

106 

126 

203 

1/203

203

167 

178 

78 

78

--

Tons 

per 

day

10 

2.4 

105 

111 

30

13 

6.1

7.5 

7.0 

5.3

6.9 

4.4 

4.1 

1.7 

2.8

6.0 

5.8 

5.4 

4.7 

3.0

4.5 

2 9 

3.3 

5.1 

5.2

5.0 

4.0 

4.6 

2.0 

2.1

380.8

Total discharge for year (second-foot-days) - 

Total load for year (tons) 

36,019.1 

- 405,900

I/Estimated or interpolated.
RED RIVER BASIN Continued 

RUSH CREEK AT PURDY, OKLA.

LOCATION. At gaging station at bridge on State Highway 76, three-quarters of a mile south of Pur

County.

DRAINAGE AREA. 139 square miles. 

RECORDS AVAILABLE. Chemical analyses: August 1946 to September 1949.

Water temperatures: October 1946 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,600 parts per million Nov. 26-27; minimum, 447 

Total hardness: Maximum, 630 parts per million Sept. 1-8, 11-12, 17-20; minimum, 264 parts per 

Water temperatures: Maximum, 87° F July 6, 19; minimum, freezing point on several days in win

EXTREMES, 1946-49. Dissolved solids: Maximum, 1,600 parts per million Oct. 6, 10-13, 1946, Nov.

Total hardness: Maximum, 660 parts per million Aug. 21-31, 1947; minimum, 182 parts per millio

nJfUn temPeratures : Maximum, 100° F Sept. 2, 1947; minimum, freezing point on many days in wi

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Nov. 11-12, 18-20 

Nov. 21-25, 28-30 

Dec. 11-13, 17-20 

Mar. 21-31 

I/Includes equlvalen 

2/Includes equivalen

Mean 

discharge 

(secondfeet)

2.19 

3.78 

5.00 

7.78 

6.08 

6.96 

7.22 

8.61 

9.30

7.77 

9.69 

13.3 

10.3 

7.80 

5.68 

26.6

119 

53.8 

53.4 

19.5 

20.3 

38.0

of 5 parts 

t of 7 parts

Temperature 

(°F)

per m 

jer m

PH

7.9

8.2 

8.2 

8.0 

8.0 

8.8

illion 

illion

Specific 

conductance 

(micromhos at 

25* C)

1,980 

1,690 

1,390 

1,340 

1,610 

1,390 

1,690 

1,530 

2,780

1,430 

1,480 

1,050 

1,430 

2,420 

1,670 

1,580

1,430 

1,440 

1,380 

1,390 

1,410 

1,430

of carbonate 

of carbonate

Silica 

(SiOJ

10

18 

23 

18 

15

(CO,). 

(CO,).

Iron 

(Fe)

0.00

.00 

.00 

.00 

.00 

.05

K

i/

Calcium 

(Ca)

58 

54 

72 

68 

72 

56 

60- 

62 

92

50 

54 

64 

45 

98 

87 

90

125 

120 

119 

108 

105 

127

ncludei 

Include!

Magnesium 

(Mg)

105 

80 

66 

65 

76 

71 

73 

72 

87

67 

64 

30 

64 

71 

99 

57

48 

43 

57 

64 

61 

62

i equiva 

i equiva

Sodium 

(Na)

2 

173

1 

1 

1

1 

2 

1 

3

142

1 

1 

140 

3 

1 

153

1 

118 

1( 

! 

138 

!

ent of 8 i 

ent of 19

Potassium 

(K)

38 

7.0 

29 

20 

56 

17 

31 

JO 

34

8.8

b

9

,7 8' 6 

>8 

5.0

L8 

8.4 

M 

)8 

7.0 

6

arts per 

parts pe

Bicarbonate 

(HCO,)

264 

216 

206 

200 

230 

205 

188 

199 

182

1/160 

150 

170 

156 

2/227 

1/220 

3/244

4/320 

~350 

3/354 

3/287 

292 

5/366

million 

r millioi

Sulfate 

(SOJ

154 

147 

199 

165 

149 

155 

153 

154 

149

155 

148 

129 

152 

149 

150 

150

171 

174 

179 

202 

200 

195

of carbo 

i of carb

Ch

ri

(C

tute 

mate 
Apr. 1-10-- 

Apr. 11-20- 

Apr. 21-30- 

May 1-10 

May 11-20-- 

Hay 21-31-

June 1-10 - 

June 11-20 

June 21-30 

July 1-10 

July 11-20- 

July 21-31-

Aug. 1-10- - 

Aug. 11-21 ... 

Aug. 22-31 ----- 

Sept. 1-8..........

Sept. 9-10, 13-16 

Sept. 11-12, 17-20- 

Sept. 21-30 ~

Weighted average

17.3

12.9

64.7

90.3

152

67.6

23.1

75.6

10.8

7.47

5.82

6.88

44.5

12.2

1.69

13.6

8.62

4.93

3.60

28.7

8.3

1,360

1,380

1,430

1,300

1,280

1,240

1,240

1,280

1,360

1,280

1,430

1,500

2,110

2,100

736

1,980

743

1,970

1,960

1,420

101

96

119

103

108

102

68

76

87

68

84

84

93

85

62

96

60

91

87

103 

118 | 8.0

100

101

92

84

95

96

99

97

93

98

259 

267 | 16

47

182

50

177

180

119

6/269

2/271

6/331

291

282

291

241

265

313

212

306

357

182

364

184

356

348

210

201

181

209

216

197

165

169

171

165

174

183

111

112

81

143

84

139

144

2/Includes equivalent of 7 parts per million of carbonate (CO,). 

6/Includes equivalent of 6 parts per million of carbonate (CO,),
LOWER MISSISSIPPI RIVER BASIN

nued 

-Continued

 u

o J

V g

w Q

W H

3 M Ed

K O

i

0>

tember 194

1948 toSet er 

h

t 

h

£

!

"5

a

September

!

1

I

I

I

JS

I

February

I

December

h

Novembe

October

rH m co ^ CM os -^ m oo c- o^coooao o co eg m -^ co eg co co CQ o CQ ^r m o t

laotnco^ co TT t- oo co TT oo oo co co oo TT oo ^r oo co in co -^ -^ ^ t- CQ CM uo co i co co co co cotAinmm mmmmin tnmminm co in m m m mmmminco

-H -^ Tf O CO ^ CO -H 0 CO Tf t- m CM O <M TJ- TT ^ 0 ^ CO CM m CO 00 in ^H M Tf 1

OS CO O CO 00 0 -^ N CO CO -H 0 CO -^ CO CO -H OO m CM CO 00 O t- TH O -^ 0 CO O CO

*

jHCMcgiOO O -^ t- TT 00 CO -^ CO CO Tf O -^ (M -^ t- COt-SOCOt- ^"OOOt-OI

t- o co eg CQ oo -^ oo o o t- i-t oo o o CQ m co oo o t- m oo oo 1-1 o ao ao CM O CQ

5SSSS SSSSS 555S5 S55SS SSS5? S5? i ! !

«»...............,.., 

O t- CO CO CO CO t- CO CO CO CO in CO CO CO CO CO CO CO CO CO O CO CO CO CO CO CO CO t- CO

too

t00

^

!

CO

Average 
RED RIVER BASIN Continued

KIAMICHI RIVER NEAR BELZONI, OKLA.

LOCATION. At gaging station at bridge, Ij miles northwest of Belzoni, Pushmataha County, and 6 m

DRAINAGE AREA. 1,420 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids; Maximum, 92 parts per million Dec. 11-20; minimum, 44 part

Total hardness: Maximum, 26 parts per million Dec. 11-20; minimum, 11 parts per million Feb. 1

Water temperatures; Maximum, 94* F July 8-9; minimum, freezing point Jan. 27-30. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 98 parts per million May 21-22, 27-28, 31, 1948; 

Total hardness: Maximum, 46 parts per million May 21-22, 27-28, 31, 1948; minimum, 11 parts pe

Water temperatures: Maximum, 94° & July 8-9, 1949; minimum, freezing point Jan. 27-29, 1948, 

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Stillwater, Okla.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mean 

discharge 

(secondfeet)

0.30 

12.9 

6.98 

108 

33.8 

17.4

14.1 

522 

216 

193 

1,309 

26,010

2,250 

8,662 

5,819 

1,132 

585 

7,368

Temperature 

(°F)

PH

6.9 

7.4

7.1

6.8 

7.8

Specific 

conductance 

(micromhos at 

25° C.)

67.3 

83.3 

68.3 

64.0 

56.5 

55.2

76.7 

53.7 

46.0 

52.9 

48.6 

37.5

47.6 

42.0 

42.5 

52.2 

58.5 

37.3

Silica 

(S102)

5.1

15

14 

12

Iron

(Fe)

0.38 

.20

.75

.65 

.32

Calcium 

(Ca)

3.6 

3.0 

3.4 

3.3 

3.6 

4.3

4.1 

3.6 

3.0 

3.2 

2.4 

2.4

2.7 

3.1 

3.4 

3.7 

3.8 

3.3

Magnesium 

(Mg)

2.3 

2.3 

2.3 

2.1 

2.2 

2.2

2.5 

4.2 

2.5 

1.7 

2.7 

3.3

1.5 

.9 

.8 

1.8 

2.3 

3.0

Sodium

(Na)

7 

6.6 

7 

5.5 

6 

6

9 

6 

3 

5.1 

4 

1

4.0 

4 

4 

7.0 

5

Potassium 

(K)

2 

2.6 

7 

2.3 

0 

9

5 

6 

9 

2.7 

6 

1

1.8 

7 

5 

2.3 

5 

2

Bicarbonate 

(HCO,)

22 

22 

22 

22 

20 

21

25 

21 

13 

14 

14 

13

11 

10 

11 

14 

18 

12

Sulfate 

(S04)

4.2 

5.0 

4.9 

6.7 

6.4 

7.8

8. 3 

13 

6.0 

5.9 

5.4 

5.1

6.9 

6.0 

6.4 

6.1 

6.0 

5.3

Ch

ri

(C
RED RIVER BASIN Continued

KIAMICHI RIVER NEAR BELZOKI, OKLA. Contin

iChemical analyses, In parts per million, water year October 1948 to Septe

Date of collection

Apr. 1-10, 1949 -

Weighted average -

Mean 

discharge 

(secondfeet)

2,341 

2,710 

1,194 

11,340 

685 

913

329 

6,230 

578 

225 

112 

73.0

20.5 

169 

71.5 

55.5 

929 

334

2,325

Temperature 

CF)

pH

7.3

7.0

7.4 

6.9

"

Specific 

conductance 

(micromhos at 

25* C)

50.6 

51.8 

57.3 

38.1 

56.3 

58.1

60.4 

40.8 

54.9 

62.0 

65.5 

66.3

67.1 

69.7 

58.9 

52.0 

48.1 

42.4

41.6

Silica

(sto.)

14

9.6

13 

13

"

Iron 

(Fe)

0.08

1.6

.60 

.55

-

Calcium 

(Ca)

3.4 

3.1 

4.4 

2.9 

4.0 

3.6

4.1 

2.4 

3.6 

3.4 

4.5 

4.2

3.8 

4.4 

3.7 

3.2 

3.0 

2.6

2.9

MagneWd

2.0 

2.2 

2.9 

1.9 

2.7 

2.8

2.6 

2.9 

2.9 

2.1 

3.1 

3.3

1.5 

3.1 

2.6 

1.8 

1.8 

1.3

2.5

Sodiuro 

(Na)

5 

6.0 

3 

3 

5 

7

6 

2 

5 

5.2 

6 

3

5.9 

4 

5 

4.3 

7 

4.5

Potassium 

(K)

0 

2.8 

5 

2 

0 

5

3 

4 

0 

3.9 

4 

4

2.7 

0 

4

1.8 

2 

2.0

2.9

Bicarbonate 

(HCO.)

16 

16 

20 

17 

23 

21

24 

14 

20 

23 

26 

21

21 

24 

26 

20 

21 

16

14

Sulfate 

(SOJ

6.2 

5.0 

6.0 

4.0 

5.0 

5.0

4.2 

3.3 

4.6 

4.0 

7.8 

4.3

3.4 

3.7 

4.4 

4.1 

8.0 

3.8

5.2

Ch

ri

(C
Temperature (° F ) of water, water year October 1

Day

20

21

28

29

October

no

no

170

we

A9

November

A9

Aft

AQ

A9

63

59

December

50

44

59

January

At

February

43

51

tin

EA

CO

AQ

49

52

March

54

AQ

tin

en

A
RED RIVER BASIN Continued 

LITTLE RIVER NEAR IDABEL, OKLA.

LOCATION. At bridge on State Highway 21, 3 miles north of Idabel, McCurtain County, and 13 miles 

DRAINAGE AREA. 1,100 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949.

EXTREMES, 1948-49.--Dissolved solids: Maximum, 369 parts per million Oct. 11-19; minimum, 48 part

Total hardness: Maximum, 72 parts per million Oct. 11-19; minimum, 13 parts per million Feb. 11

Water temperatures: Maximum, 87° F July 11, 21, 31; minimum, 37° F Feb. 1. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 369 parts per million Oct. 11-19, 1948; minimum, 4

1948.

Total hardness: Maximum, 72 parts per million Oct. 11-19, 1948; minimum, 9 parts per million Apr

Water temperatures: Maximum, 88° F July 26, 1948; minimum, freezing point Feb. 26, 1948.

REMARKS. Records of discharge for gaging station near Idabel, Okla., for water year October 1948 

No appreciable inflow between sampling point and gaging station except during periods of heavy 

samples available in district office at Stillwater, Okla.

Chemical anal

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mar- 91-31 __ .......

Mean 

discharge 

(secondfeet)

8.24 

33.9 

37.2 

33.8 

36.8 

25.1

24.5 

184 

262 

254 

220 

17,220

2,699 

3,016 

3,024 

1,372 

981 

R son

Temperature 

(°F)

PH

7.8 

7.2 

7.4

7.8

7.3 

7.0 

8.0

Specific 

conductance 

(micromhos at 

25" C)

657 

670 

248 

324 

382 

326

309 

275 

97.5 

80.7 

94.4 

40.3

43.9 

41.0 

50.4 

54.6 

63.5 

dfi a

Silica 

(SiOa)

2.4

8.5 

7.7

8.8

9.6 

11 

2.3

Iron

(Fe)

0.02 

.04 

.02

.03

.20 

.45 

.08

fses, in parts per million, water year October 1948 to 

Calcium 

(Ca)

18 

19 

13 

10 

15 

19

15 

18 

7.8 

6.1 

6.4 

3 2

3.6 

3.2 

4.9 

5.6 

5.6

d 9

Magnesium 

(Mg)

5.3 

6.0 

3.« 

7.5 

4.4 

3.9

3.3 

3.7 

2.8 

2.3 

2.6 

1.4

1.8 

1.3 

2.4 

1.9 

1.7 

1 «

Sodium 

(Na)

109 

33 

50

40

3.6 

3.6 

3.6

Potassium 

(K)

3.0 

2.3

:5

2.5

[5

3.3 

)5 

8.3 

8.7 

9.0 

1.5

3.1 

1.4 

1.7 

3.6 

2.6 

 >. 1

Bicarbonate 

(HCOS )

50 

54 

41 

61 

44 

61

47 

54 

33 

28 

20 

12

13 

12 

19 

18 

21 

1ft

Sulfate 

(SO,)

9.8 

10 

7.2 

54 

10 

11

8. 3 

8.0 

4.2 

4.5 

5.2 

4.2

4.3 

4.8 

4.3 

5.1 

4.9

3 9

Ch

ri

(C

1

1
Apr. 1-10-- 

Apr. 11-20- 

Apr. 21-30- 

May 1-10 -- 

May 11-20 - 

May 21-31-

June 1-10 -- 

June 11-20- 

June 21-30 - 

July 1-10- 

July 11-20 - 

July 21-24 - 

July 25-31 

Aug. 1-10 

Aug. 11-20 - 

Aug. 21-31 - 

Sept. 1-10 ~ 

Sept. 11-13- 

Sept. 14-17 - 

Sept. 18-22 - 

Sept. 23-30 -

Weighted average - age1 529 9 QQ9

559

1 7A

QCQ

77 *l

OCA

2,029 --

AA n

45 3

QQ X

85 9

VI fl W ft

1 in

et ft

50.4 --

50 '

--'

5

9

3

D

B

e

S

o

A 9

B

e

9

0

4.1

2

1

2 1

2

1

2

1

2

0

1.7

3 4

8

1

4

7 1 9 fl 8 9 I n

21

4.6

no

97

18

99

no

94.

no

32

94.

1 A

28

35

on

9n

99

17

3

O

3 2

3 1

2 9

2

0

3 9

2

7

4 2

3.9

1

1

2

5

5
RED RIVER BASIN Continued

LITTLE R 

Temperature (° F

Day

1 

9 -- -

10 -

1 A

19

21

nn

27

no

29

October

68 

67 

68

77 

76

78 

65 

64 

64 

66

66 

63 

63 

67 

67

78 

63 

58 

59 

59

61 

61 

61 

59 

57

58 

57 

59 

59 

63 

63

64

November

64 

62 

61 

63 

62

59 

56 

56 

55 

53

52 

53 

52 

54 

54

57 

54 

57 

51 

51

51 

51 

48 

49 

49

52 

51 

51 

48 

46

54

December

46 

47 

47 

47 

51

48 

58 

45 

45 

44

44 

48 

49 

54 

55

55 

50 

54 

51 

48

49 

48 

48 

48 

48

43 

44 

44 

44 

43 

42

48

January

41 

43 

45 

44 

43

42 

42 

43

47 

47

48 

48 

47 

48 

50

49 

48 

47 

44 

42

43 

44 

45 

54 

52

50 

46 

45 

42 

41 

40

45

IVER NEAR IDABEL, OKU. C

at water, water year October 19

February

37 

38 

38 

40 

40

42 

42 

42 

44 

44

45 

48 

50 

50 

50

49 

48 

47 

50 

51

53 

53 

54 

54 

52

52 

53 

50

47

March

50 

49 

49 

49 

52

54 

53 

54 

56 

52

51 

51 

53 

52 

53

54 

55 

55 

53 

53

53 

56 

55 

58 

48

59 

58 

59 

59 

61 

58

54

Ap
RED RIVER BASIN -Continued 

SULPHUR RIVER NEAR DARDEN, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 67, 0.6 mile upstream from St. Louis So

Darden, Bowie County. 

DRAINAGE AREA. 2,754 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 5,930 parts per million Oct. 24, 27-31; minimum, . , , . , 

Total hardness: Maximum, 698 parts per million Oct. 24, 27-31; minimum, 19 parts per million 

TREMES, 1947 -49. Dissolved solids: Maximum, 5,930 parts per million Oct. 24, 27-31, 1948; m

Total hardness: Maximum, 698 parts per million Oct. 24, 27-31, 1948; minimum, 19 parts per m

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sup

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Oct. 21-23, 25 

Oct. 24, 27-31 

Nov. 21-23, 28-30-

D6C l9~25~"~~-~

D6C 27 31 

Jan. 1-10, 1949 

Jan. 17-18, 20 

Jttn 23*25 -----

.Tan 9R.91 ...... _

Mean 

discharge 

(secondfeet)

0.69 

2.33 

13.7 

11.0 

13.9 

54 

23.7

8.62 

6.72 

35.8 

35.7 

67.5

17.3 

12.0 

211

76 

55.0

19.6 

16.4 

304 

538 

1,770 

1,437 

9R 7RO

Temperature 

(°F)

pH

--

Specific 

conductance 

(micromhos at 

25° C )

554 

563 

1,080 

1,720 

2,650 

6,850 

10,000

8,560 

5,290 

3,700 

4,440 

8,910

2,900 

2,180 

939 

2,350 

3,740

4,100 

3,250 

1,680 

698 

515 

242 

isn

Silica 

(SiOs)

17 

10 

4.7 

9.2 

9.9 

7.5 

7.5

7.5 

6.2 

5.1 

8.4 

11

8.8 

9.4 

5.2 

5.5 

6.0

8.0 

6.6 

6.0 

6.4 

9.4 

5.3 

S. H

Iron 

(Fe)

Calcium 

(Ca)

36 

34 

37, 

44 

84 

151 

194

150 

100 

68 

78 

149

56 

45 

58 

60 

78

82 

74 

42 

20 

4.0 

8.0 

17

Magnesium 

(Mg)

7.2 

8.5 

10 

19 

21 

37 

52

45 

26 

17 

25 

45

17 

11 

6.4 

12 

16

19 

19 

10 

5.9 

2.2 

1.1 

1.5

Sodium 

(Na)

Potassium 

(K)

62 

68 

152 

267 

420 

1,360 

1,970

1,700 

993 

677 

820 

1,760

512 

380 

122 

415 

684

758 

581 

284 

104 

97 

37 

14

Bicarbonate 

(HCOS )

125 

138 

 7 

57 

102 

140 

158

161 

150 

104 

88 

103

99 

105 

134 

118 

108

115 

114 

85 

49 

68 

30 

66

Sulfate 

(SO,)

29 

30 

60 

102 

201 

520 

733

635 

374 

260 

331 

668

220 

157 

99 

175 

272

300 

257 

130 

51 

19 

18 

in

2

2
LOWER MISSISSIPPI RIVER BASIN

 s s

S 2

3 i ;S

2 § m <

OS OS ^

S o> .Q -*3

:&§!

ilg*

si°

3S§

0,-P .- o

a-

^< t- 1-1 co 1-1 in eo 0)1-111 

eg » » eg eg in co eg -a-.

S 8 2 2 «

OJO> OOB 0>1

« CO « S OS O O

lOooooonoB egooooB

O CO O (

^< i-t 1-1

oteo^eooego) t-cocooBc-c-csieg«*H ;^s

rH O i-« «O CO O C

CO CO rH « «D O CO cfl N CQ ca ca c5 ca

;2§s s:

OOOOOOO OOOO«Dt-OOrHi-tmoOOO OO«DOO> O t- «D

ill

t >~i *?
July 1-10 - --- 

July 11-12, 17-19,

24-26, 29-------

July 13-16, 27-28,

30-31- -- 

July 20-21, 23 

July 22 

Aug. 1-11 

Aug. 12, 14, 17-18 

Aug. 13, 15-16,

19-20 _- 

Aug. 21-31 

Sept. 1-10 ------ 

Sept. 11, 16-17 

Sept. 12-13, 15, 

18-19 

Sept. 14, 20 

Sept. 21, 23 

Sept. 22, 24------

Sept. 25-30 

Weighted average -

122

177

572

116

118

91.2

339

12.6

87.3

100

57.5

192

272

139

2,225

444

562

317

1,550

5,260

463

342

804

508

594

380

2,950'

4,330

1,960

803

252

9.0

10

8.6

9.2

13

11

8.2

8.0 

7.4

14

9.8

8.1

5.4 

4.8

3.3

10

30

4.5 

3.6

5.1 

4.3

4.7 

5.9

7.2

16

20

11

8.3

3.5

27

257

986

144

522

805

331

116

122

77

111

91

72

97

123

109

120

112

92

22

98

362

28

29

57

33

34

22

58

190

295

130

59
RED RIVER BASIN--Continue

SULPHUR RIVER NEAR DARDEN, TEX.

Temperature (° F ) of water, water year October 

Day

12 . ... . -

o«

ow

29

October

75

73

November

CQ

53

CO

50

December

CO

AQ

CO

57

52

52

CO

dft

January

f>Q

00

53

53

45

52

February

49

CO

50

59

CQ'

EQ

March

50

57

CO

59

en

(=7
RED RIVER BASIN Continued 

OUACHITA RIVER NEAR MALVERN, ARK.

LOCATION.--At gaging station at Rockport Bridge on State Highway 84, 2 miles northwest of Halvern

Dam. Flow regulated by operation of Remmel Dam. 

DRAINAGE AREA. 1,570 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1946 to Seotember 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 64 parts tier million Nov. 1-10; minimum, 34 roarts 

Total hardness: Maximum, 34 parts per million Nov. 1-10, Dec. 11-20; minimum, 12 parts T>er mil

EXTREMES, 1946-49. Dissolved solids: Maximum, 71 T>arts per million Feb. 21-29, 1948; minimum, 

Total hardness: Maximum, 37 parts per million Sept. 11-20, 1948; minimum, 8 parts ner million 

REMARKS. Records of discharge for water year Octobsr 1948 to September 1949 given in Water-Suppl

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Oct 21 31

Dec 21 31

Jan. 1-10, 1949 

Mav 21-31 

Mean 

discharge 

(secondfeet)

234 

242 

308 

428 

581 

757

984 

4,575 

2,262 

1,703 

8,952 

28, 530

3,376 

2,545 

6,312 

5,984 

4,440 

9,628

2,460 

1,463 

1,877 

9,104 

1,277 

1 fiflfi

Color

5 

7 

6 

7 

6 

7

? 

8 

8 

22 

28 

26

23 

33 

25 

15 

22 

22

19 

15 

8 

22 

24 

18

PH

8.6

Specific 

conductance 

(micromhos at 

25° C )

79.7 

77.4 

79.8 

95.4 

84.1 

85.3

83.7 

88.3 

82.2 

68.1 

57.4 

54.8

37.0 

43.4 

42.0 

49.9 

48.7 

48.2

51.2 

47.5 

50.6 

51.7 

49.5 

54.3

Silica 

(SiOa)

7.0

Iron 

(Fe)

0.02

Calcium 

(Ca)

7.8 

8.0 

8.1 

9.5 

8.6 

9.8

8.8 

9.8 

9.9 

7.8 

6.4 

6.0

2.7 

4.0 

4.5 

5.0 

5.3 

5.1

5.6 

4.6 

4.8 

5.3 

5.1 

4.8

Magnesium 

(Mg)

1.7 

1.9 

1.9 

2.5 

2.0 

2.1

2.0 

2.2 

1.9 

1.9 

1.9 

1.8

1.2 

1.7 

1.7 

1.4 

1.4 

1.4

1.7 

1.4 

1.5 

1.5 

1.6 

1.5

Sodium 

(Na)

4.1 

5. 

6. 

5. 

4. 

3.

6. 

5. 

4. 

4. 

5. 

2.

4. 

2. 

2. 

4. 

3. 

4.

4. 

5. 

3. 

4. 

5. 

6.

Potassium 

(K)

1.0 

1 

0 

5 

9 

5

3 

1 

7 

5 

0 

6

1 

5 

7 

6 

4 

4

5 

2 

7 

8 

3 

1
RED RIVER BASIN Continued

OUACHITA RIVER NEAR MALVERN, ARK. Continue

Chemical analyses, in parts per million, water year October 1948 to Septe

Date of collection

June 1-10, 1949 

Sect 11 20

Mean 

discharge 

(secondfeet)

2,176 

8,526 

1,424 

1,101 

938 

611

433 

330 

227 

238 

299 

590

3,279

Color

12 

10 

9 

7 

6 

7

5 

5 

5 

7 

7 

6

-

PH

Specific 

conductance 

(micromhos at 

25* C )

59.3 

66.7 

69.1 

58.2 

60.0 

61.0

74.4 

71.6 

73.0 

84.0 

76.4 

66.5

65.1

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

5.5 

6.4 

6.8 

6.0 

6.1 

6.8

7.0 

8.8 

7.9 

8.1 

8.6 

8.5

6.8

Magnesium 

(Mg)

1.4 

1.6 

1.9 

1.5 

1.4 

1.5

1.6 

1.5 

2.1 

2.6 

2.7 

1.9

1.8

Sodium Pfs- 

/v,a\ slum 

(Na) (K)

4.2 

5.3 

5.7 

2.4 

3.3 

2.7

4.8 

2.6 

3.3 

2.1 

1.5 

1.8

4.1
RED RIVER BASIN Continued 

OUACHITA RIVER AT ARKADELPHIA, ARK.

LOCATION. At gaging station on State Highway 8 at Arkadelphia, Clark County, 800 feet upstream f

DRAINAGE AREA. 2,311 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 77 parts per million Sept. 1-10; minimum, 42 parts 

Total hardness: Maximum, 35 parts per million Aug. 20-31; minimum, 11 parts per million Jan. 25

Water temperatures: Maximum, 85° F July 20, Aug. 14; minimum, 40° F Jan. 31-Feb. 1.

REMARKS. Records of discharge for water year October 1948 to September 1949 furnished by Corps of 

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Oct 11 20

Dec. 11-15, 20 -----

Jan. 1-10, 1949 - 

F

oh 91 O ft

Mar. 21-31 

Mean 

discharge 

(secondfeet)

261 

290 

340 

830 

1,287 

1,295

1,438 

1,940 

10, 820 

3,230 

2,953 

3,652 

20, 130 

64,060

5,523 

4,089 

9,420 

8,391 

7,944 

15 290

Temperature 

(°F)

Color

7 

5 

5 

5 

15 

15

15 

5 

20 

20 

20 

15 

40 

80

40 

40 

50 

10 

5 

15

PH

8.3 

8.4 

8.5 

8.0 

8.0 

8,0

8.2 

7.6 

7.6 

8.1 

7.7 

7.3 

7.4 

7.0

7.3 

7.3 

7.5 

8.1 

7.6 

7 R

Specific 

conductance 

(micromhos at 

25" C )

106 

99.7 

103 

98.8 

90.9 

86.5

87.1 

93.0 

122 

81.7 

71.4 

70.4 

52.8 

32.0

46.6 

50.3 

51.4 

55.4 

53.2 

4fi 7

Silica 

(SiO2)

7.2 

6.0 

6.4 

6.9 

7.0 

6.0

2.5 

2.2 

2.8 

4.1 

5.2 

4.8 

7.4 

6.6

10 

9.4 

11 

8.3 

7.5 

7 1

Iron 

(Fe)

0.03 

.02 

.03 

.04 

.06 

.09

.06 

.05 

.08 

.10 

.12 

.04 

.12 

.12

.12 

.18 

.11 

.04 

.06 

riR

Calcium 

(Ca)

8.4 

8.8 

6.8 

9.0 

7.6 

7.6

6.2 

9.6 

8.8 

6.9

9.0 

5.7 

2.8

4.4 

5.2 

5.0 

4.0 

3.4 

3 R

Magnesium 

(Mg)

2.3 

2.3 

2.3 

2.2 

2.1 

2. 6

1.8 

1.7 

2.0 

1.9

1.4 

1.5 

1.0

1.3 

1.4 

1.4 

1.8 

1.5 

1 1

Sodium 

(Na)

6.4 

7.6 

8.7 

4.0 

3.6 

4.7

4.3 

6.0 

5.1 

2.0

3.4 

3.4 

1.5

2.8 

3.0 

4.4 

5.8 

6.2 

4 fl

Potassium 

(K)

5.2 

1.9 

3.7 

1.6 

.6 

.6

.9 

.4 

1.0 

.8

.3 

.2

.7

.3

.4 

.2 

.2

.4 

5
RED RIVER BASIN Continued

OUACHITA RIVER AT ARKADELPHIA, ARK. Continu

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Apr. 1-10, 1949 -

May 21-23, 30-31 

Mean 

discharge 

(secondfeet)

3,889 

2,205 

2,574 

11,910 

1,835 

3,613 

750

3,181 

11, 740 

2,064 

1,630 

1,594 

849 

842

469 

440 

273 

257 

302 

513

4 flOfi

Temperature 

(°F)

Color

15 

10 

10 

30 

25 

14 

22

25 

30 

25 

9 

13 

7 

4

0 

0 

5 

10 

10 

10

PH

8.2 

7.6 

7.5 

7.1 

7.3

7.3 

7.2 

7.3 

6.7

6.8

7.5 

7.7 

7.6 

8.1 

7.9 

7.8

Specific 

conductance 

(micromhos at 

25° C )

73.2 

64.4 

68.9 

58.4 

65.4 

58.5 

84.7

57.7 

56.8 

69.5 

70.2 

67.7 

83.5 

78.0

96.5 

89.1 

117 

115 

110 

94.1

7ft 9

Silica 

(SiOa)

14 

9.4 

9.9

7.8

8.0

9.4 

9.9 

7.6 

13 

12 

12

Iron 

(Fe)

0.04 

.07 

.02 

.02 

.03

.10 

.03 

.16 

.03

.02

.02 

.18 

.02 

.03 

.02 

.01

n nfi

Calcium 

(Ca)

5.4 

6.0 

6.0 

5.0 

5.8 

5.7 

7.4

4.6 

5.2 

5.6 

7.6 

6.4 

8.1 

7.4

9.1 

8.7 

9.7 

9.4 

8.8 

8.2

ft R

Magnesium 

(Mg)

1.4 

1.4 

1.4 

1.2 

1.3 

1.4 

2.1

1.0 

1.0 

1.6 

1.7 

1.6 

1.7 

1.6

2.4 

3.0 

2.6 

2.4 

2.7 

2.4

1 R

Sodium 

(Na)

3.9

4.5 

4.7 

5.5 

7.0 

4. 

5.

8. 3 

8.2 

6.0 

2.1 

2. 

1. 

5.0

5.6 

3.5 

7.6 

8.7 

7.6 

5.7

R n

Potassium 

(K)

0.2 

.2 

.2 

.3 

.4 

2 

5

.5 

.7 

.7 

.3 

5 

8 

.4

.3 

.3 

.2 

1.8 

1.5 

2.1

n 8
Temperature (° F ) of water, water year October 19

Day

2

13

OQ

25

Op

29

verage

October

CQ

November

53

57

54

52

50

50

December

50

50

Ep

Cn

50

4ft

49

50

January

en

AO

52

50

February

52

50

52

53

54

March

52

52

53

52

53

54

53

en

Ep

A
RED RIVER BASIN Continued 

OUACHITA RIVER AT CAMDKN, ARK.

LOCATION. At gaging station at bridge on U.S. Highway 79.

DRAINAGE AREA. 5,390 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1949.

Water temperatures: October 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 193 parts per million Nov. 22-24; minimum, 55 par

Total hardness: Maximum, 40 parts per million Aug. 5-10; minimum, 15 parts per million Jan. 11

Water temperatures: Maximum, 92° F July 22; minimum, 38° F Nov. 27, 29-Dec. 2. 

EXTREMES, 1946-49. Dissolved solids: Maximum, 193 parts per million Nov. 22-24, 1948; minimum, 

Total hardness: Maximum, 45 parts per million Sept. 19-21, 26, 1946; minimum, 15 parts per mil

Water temperatures: Maximum, 92° F July 22, 1949; minimum, 38° F Nov. 27, 29-Dec. 2, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 furnished by Corps o

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Nov. 21, 25-30 i 

Dec 11 20

Dec 21 31

Jan. 1-4, 10, 1949 

Mar. SI-31 

Mean 

discharge 

(secondfeet)

282 

431 

444 

1,081 

1,719 

2,869 

4,577

2,234 

5,490 

5,738 

5,106 

6,254 

11,240 

79,020

37,070 

9,602 

14,350 

15,890 

22,760 

57 flSrt

Temperature 

<°F)

Color

5 

5 

5 

25 

40 

35 

20

30 

20 

15 

20 

30 

25 

15

30 

10 

15 

10 

30 

IR

pH

8.0 

7.9 

7.9 

7.7 

7.8 

7.8 

7.7

8.2 

8.1 

7.3 

7.2 

7.0 

6.7 

7.2

7.3 

7.7 

7.1 

7.0 

7.1

7 R

Specific 

conductance 

(micromhos at 

25" C )

103 

109 

154 

302 

108 

131 

325

141 

130 

124 

122 

56.0 

60.8 

76.7

74.0 

73.9 

73.1 

72.8 

51.0

A7 A

Silica 

(SiO.)

6.5 

5.6 

3.6 

8.8 

9.0 

7.4 

8.0

6.4 

6.8 

7.2 

6.4 

8.0 

9.2 

8.7

11 

8.9 

8.9 

8.5 

5.4

7 Q

Iron 

(Fe)

0.02 

.06 

.04 

.11 

.07 

.18 

.08

.19 

.14 

.11 

.04 

.08 

.06 

.11

.14 

.04 

.13 

.16 

.33

9F.

Calcium 

(Ca)

6.6 

7.9 

8.0 

10 

5.8 

7.2 

9.6

8.2 

8.4 

7.4 

7.6 

4.8 

3.7 

5.2

5.6 

5.3 

4.0 

4.7 

4.7 

A R

Magnesium 

(Mg)

2.1 

2.0 

2.2 

2.9 

1.7 

1.8 

3.0

2.0 

1.8 

2.3 

2.1 

1.0 

1.3 

1.4

1.4 

.9 

1.2 

1.4 

1.0

1 K

Sodium 

(Na)

6.7 

8.3 

15 

39 

7.7 

13 

45

14 

13 

12 

11 

4.4 

6.8 

9.3

7.2 

7.8 

11 

7.5 

5.2 

7 n

Potassium 

(K)

0.8 

.6 

.7 

2.5 

3.1 

2.8 

6.7

.9 

1.3 

.4 

.4 

.3 

.4 

.2

.5 

.3 

.5 

2.1 

.5

S
Apr. 1-10 ----- 

Apr. 11-20 - 

Apr. 21-30 

May 1-10 

May 11-20 ~ 

May 21, 24-25, 30 

May 22-23, 26-29, 31-

June 1-2 

June 3-10 - 

June 11-20 

June 21-30 

July 1-10 

July 11-20- 

July 21-22- 

July 23-31 -

Aug. 1-4 

Aug. 5-10 - 

Aug. 11-20- 

Aug. 21-26 - 

Aug. 27-31 - 

Sept. 1-10-- 

Sept. 11-20- 

Sept. 21-30-

Average 

20,780

4,430

4,614

18,670

3,561

2,050

2,239

7,725

3,790

13,440

5,545

2,668

1,897

1,565

1,378

1,045

980

1,014

640

442

392

540

774

9,351

8.1

8.2 

7.8

7.7

7.8 

7.5 

7.2

79.6

85.0

79.4

86.9

92.3

86.0

106

95.4

68.3

77.5

88.3

99.7

106

109

142

138 

19ft 

191 

178 

129 

126 

117 

125

10

9.4

9.9

9.0

13

10

9.5

8.7

8.5

9.7

8.7

.01 

.01 

.01 

.02 

.02

.01

.04 

.16 

.17 

.11 

.14

.05

.03 

.01 

.02 

.07 

.09 

.09 

.14

0.09

6.4 

5.6 

5.3 

5.8 

6.4 

6.8 

7.2

6.8 

6.4 

6.4 

6.9 

7.1 

7.8 

8.3 

8.7

8.1

11

9.8

10

8.9

8.2

8.4

8.6

7.1

1.6 

1.9 

2.5 

1.6 

1.1 

1.4 

2.6

2.1 

1.0 

1.4 

1.4 

1.6 

1.6 

1.6 

2.0

2.3 

3.1 

2.7 

3.0 

2.8 

2.4 

2.4 

2.0

6.2 

7.0 

4.5 

7.7 

9.4

4.8

6.3

7.5

9.0

10

1

15

.3 

.3 

.4

.5 

.7

1.3
RED RIVER BASIN Continu

OUACHITA RIVER AT CAMDEN, ARK. 

Temperature (" F ) of water, water year October 19

Day

12

22

9A

25

30 - 

October

"

November

62

38

December January

3«7

February

62

March

62

A
RED RIVER BASIN Continued 

OUACHITA RIVER NEAR CROSSETT, ARK.

LOCATION. At bridge on U. S. Highway 82 between Strong, Union County, and Crossett, Ashley Coun

RECORDS AVAILABLE. Chemical analyses: October to December 1947; September 1948 to April 1949.

Water temperatures: October to December 1947; September 1948 to April 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,850 parts per million Nov. 1-12; minimum, 79 p

Total hardness: Maximum, 331 parts per million Nov. 1-12; minimum, 20 parts per million Jan. 

Water temperatures: Maximum, 80° F Oct. 1; minimum, 40° F Jan. 30-Feb. 2, 4, 7.

REMARKS. No discharge records available for this station. Records of specific conductance of d

Ark.

Chemical analyses, in parts per million, October 1948 to April 19

Date of collection

Oct. 1-10, 1948 

Jan. 1-5, 1949 

.Tan STD-SI _____ 

Mean 

discharge 

(secondfeet)

Temperature 

(T)

Color

5 

5 

5 

5 

15 

20 

20 

50

20 

15 

45 

40 

50 

45 

40 

60 

60 

25 

45

PH

8.0 

7.9 

7.9 

7.6 

7.7 

7.6 

6.9 

7.0

7.5 

7.5 

7.8 

8.8 

8.9

8.9 

8.7

Specific 

conductance 

(micromhos at 

25' C )

2,180 

2,150 

2,170 

3,490 

2,340 

1,840 

1,830 

507

819 

912 

396 

441 

246 

246 

400 

217 

138 

177 

11R

Silica 

(SiOa)

8.0 

6.0 

8.0 

6.0 

9.0 

7.0 

6.5 

3.0

6.0 

6.0 

4.8 

7.6 

8.6

8.4 

7.4

Iron 

(Fe) v

0.02 

.01 

.06 

.00 

.04 

.06 

.24 

.12

.08 

.06 

.07 

.15 

.14

.16 

.25

Calcium 

(Ca)

64 

59 

48 

88 

74 

49 

49 

15

27 

28 

16 

16 

11 

9.2 

14 

9.2 

6.5 

8.4 

S 3

Magnesium 

(Mg)

17 

16 

18 

27 

21 

14 

13 

3.7

6.8 

7.2 

3.7 

4.6 

3.1 

2.4 

3.5 

2.8 

2.3 

1.6 

1 7

Sodium 

(Na)

335 

335 

335

558 

415 

282 

277 

64

116 

133 

51 

59 

31 

3 

6 

29 

16 

2 

1

Potassium 

(K)

28 

21 

16 

38 

13 

18 

20 

4.8

4.3 

4.2 

7.4 

1.6 

1.0 

4 

8 

1.1 

.8 

5 

6
RED RIVER BASIN Continued

OUACHITA RIVER NEAR CROSSETT, ARK. Continued 

Chemical analyses, in parts per million, October 1948 to April 1949 

Date of collection

Feb. 1-10, 1949 -----

Average -

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

Color

35 

40 

40 

40 

25 

38

22 

22 

22

40 

40 

50

«

pH

6.8 

7.0 

7.0 

6.9 

6.8 

6.5

6.5 

6.1 

6.5

-

Specific 

conductance 

(micromhos at 

25' C )

115 

104 

206 

201 

209 

209

200 

121 

384 

381 

391 

258

755

Silica 

(810.)

6.0 

6.0 

8.7 

7.8 

7.4 

7.2

8.8 

7.7 

6.1

7.0

Iron 

(Fe)

0.05 

.11 

.16 

.14 

.23 

.33

.56 

.48 

.04

0.15

Calcium 

(Ca)

5.2 

10 

8.1 

8.4 

7.8 

8.2

7.2 

13 

13 

14 

14 

8.0

23

Magnesium 

(Mg)

1.6 

1.8 

2.2 

2.2 

2.3 

2.1

1.4 

2.8 

3.4 

3.5 

3.8 

2.1

6.4

Sodium 

(Na)

14 

5.4 

26 

23 

28 

29

3 

1 

55 

55 

57 

26

114

Potassium 

(K)

0.4 

.9 

1.1 

1.9 

1.6 

1.5

.7

1.6 

2.2 

.8

8.0
Temperature ( ° F

Day

1 O

|Q

O4

27

29

30 

October

80 

79 

79 

78 

78

78 

76 

76 

76 

76

74 

73 

72 

70 

70

68 

66 

64 

64 

64

63 

63 

63 

62

--

November

68 

67 

66 

66 

64

64 

62 

60 

60 

60

58 

58 

58 

58 

58

58 

58 

56 

56 

56

56 

56 

56 

56

December

53 

53 

53 

53 

53

54 

54 

54 

55 

55

55 

55 

55 

53 

53

53 

53 

52 

52 

50

50 

48 

46 

46

--

January

50 

56 

50 

48 

48

50 

50 

50 

50 

50

50 

50 

52 

50 

50

50 

48 

48 

48 

50

50 

50 

52 

52

52 

52 

50 

50 

40 

40

50

of water, water year October 

February

40 

40

40

40 

42 

42 

42

44

46 

46 

48

48 

50 

50 

50 

50

52 

52 

54 

56 

56

56 

58 

58

March

58 

60 

58 

58 

56

56 

56 

56 

56 

56

57 

58 

58 

58 

58

58 

58 

58 

58 

58

58 

58 

60 

60 

60

60 

60 

60 

62 

62 

62

58
RED RIVER BASIN Continued 

LITTLE MISSOURI RIVER NEAR BODGHTON, ARK

LOCATION. At gaging station on U. S. Highway 67, 2J miles northeast of Boughton, Nevada County, an

DRAINAGE AREA. 1,068 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 111 parts per million July 25-27; minimum, 40 parts 

Total hardness: Maximum, 73 parts per million July 25-27; minimum, 18 parts per million Dec. 21-

Water temperatures: Maximum, 90° F July 27, Aug. 25; minimum, 37 F Jan. 29-30. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 111 parts per million July 25-27, 1949; minimum, 40 

Total hardness: Maximum, 73 parts per million July 25-27, 1949: minimum, 16 parts per million De

 - _ . * _ _ - __ -_._ .. o^ * D T-_ on on t riAn

J.11IUIU , I m. f _ F . , .- - -

Water temperatures: Maximum, 94 F July 29, 1948; minimum, 37 F Jan. 29-30, 1949. 

REMARKS. Records of discharge for water year October 1948 to September 1949 furnished by Corps of 

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Jan. 1-12, 1949 

Feb 21 23 27

Mean 

discharge 

(secondfeet)

18.5 

28.3 

26.4 

125 

210 

785 

339

188 

1,015 

602 

916 

5,152 

9,046 

47, 500 

14,420

2,747 

1,889 

3,882 

8,945 

3,667 

7,674

Color

23 

31 

40 

60 

45 

45 

45

45 

45 

37 

22 

38 

33 

37 

22

5 

6 

12 

22 

12 

18

pH

Specific 

conductance 

(micromhos at 

25° C )

114 

108 

92.7 

112 

107 

69.8 

85.6

72.1 

61.7 

55.8 

69.6 

57.3 

64.7 

76.7 

46.8

59.4 

59.4 

87.5 

56.6 

52.3 

53 4

Silica 

(Si02)

7.2

Iron 

(Fe)

0.11

Calcium 

(Ca)

9.6 

9.5 

7.6 

13 

13 

7.8 

9.1

7.6 

5.8 

4.9 

5.6 

5.6 

6.2 

13 

6.4

5.8 

6.7 

12 

6.5 

5.9 

6.«

Magnesium 

(Mg)

3.7 

1.8 

1.8 

2.9 

2.0 

1.3 

3.0

1.5 

1.2 

1.3 

2.4 

1.2 

1.3 

.4 

1.2

1.9 

2.4 

2.4 

1.9 

1.6 

1.3

Sodium 

(Na)

Potassium 

(K)

7.8 

11 

7.3 1.8 

7.1 

6.2 

 5.9 

3.7

5.3 

7.0 

4.8 

8.3 

6.6 

4.0 

3.3 

1.4

4.7 

1.8 

3.1 

2.6 

1.8 

2.5
July 20-24, 28-31 

-

AUK 9 12

1,026 

872 

1,711 

337

1,809 

753 

193 

168

102 

63.8 

73.9 

39.5 

25.5 

31.3 

60.9

1,893

7 

21 

14 

32

8 

12 

12

25

20 

15 

31 

22 

10 

11 7

--

71.7 

70. 5 

66.1 

71.1

66.0 

79.0 

99.1 

165

142 

147 

117 

113 

122 

109 

92.3

85.5

7.0 

8.0 

7.1 

6.5

7.1 

8.3 

12 

27

13 

20 

15 

12 

14 

12 

8.2

9.5

1.2 

1.2 

1.3 

1.8

1.0 

1.0 

1.9 

1.4

1.5 

1.7 

L.I 

1.3 

1.0 

1.9 

2.1

1.7

8.1 

4.9 

5.1 

7.6

6.9 

7.6 

3.6 

3.8

6.9 

6.1 

8.6 

10 

11 

9.6 

6.4

5.9
RED RIVER BASIN Continue

LITTLE MISSOURI RIVER NEAR BOUGHTON, 

Temperature ( * F ) of water, water year October 

Day

0

10 

12

13

1C

22

oo

25

29

30

October November December January

40

February

""

March 
RED RIVER BASIN Continued 

SALINE RIVER NEAR RYE, ARK.

LOCATION. At gaging station at bridge on State Highway 15, 4 miles southwest of Rye, Cleveland Count

DRAINAGE AREA. 2,040 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1947, October 1948 to September 19

Water temperatures: October 1946 to September 1947, October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 132 parts per million Jan. 24, 30; minimum, 44 parts 

Total hardness: Maximum, 77 parts per million Jan. 24, 30; minimum, 13 parts per million Jan. 21-

Water temperatures: Maximum, 90° F July 10; minimum, 40° F Jan. 30-31, Feb. 2. 

EXTREMES, 1946-47, 1948-49. Dissolved solids: Maximum, 132 parts per million Jan. 24, 30, 1949; mi

Total hardness: Maximum, 77 parts per million Jan. 24, 30, 1949; minimum, 8 parts per million Jun

Water temperatures: Maximum, 92* F Aug. 4-6, 9, Sept. 2, 1947; minimum, 37* F Jan. 7, 1947. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply P

samples available in district office at Fayetteville, Ark.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Jan. 1-2, 7-10, 1949--

Jan. 21-23, 25-29, 31

F

-U O1 Op

MAT 1 10 ~~

Mar S1-S1 

Mean 

discharge 

(secondfeet)

22.2 

23.5 

37.7 

204 

523 

1,702

738 

466 

1,814 

2,688 

4,395 

2,568 

14,850 

20,200

29,750 

12, 540 

4,632 

4,161 

5,106 

6,536 

7 RIM

Color

7 

6 

5 

5 

35 

40

20 

15 

60 

40 

50 

35 

45 

30

40 

35 

30 

50 

50 

50 

an

pH

8.5 

8.4 

8.2 

8.1 

8.0 

8.0

8.1 

8.0 

7.9 

7.4 

7.3 

7.5 

6.7

7.0 

7.2 

7.1 

7.1 

7.2 

7.4 

7 3

Specific 

conductance 

(micromhos at 

25° C )

119 

123 

121 

114 

127 

88.8

118 

120 

80.0 

81.1 

62.3 

84.2 

46.3 

222

37.6 

62.9 

66.7 

65.6 

55.7 

49.3 

52 fl

Silica 

(SiO,)

8.2 

6.6 

7.6 

6.6 

7.4 

8.2

7.0 

6.4 

7.7 

9.2 

6.6 

9.2 

8.4

9.0 

6.6 

9.8 

10 

9.7 

5.7 

ft a

Iron 

(Fe)

0.02 

.02 

.02 

.04 

.03 

.04

.10 

.16 

.07 

.15 

.21 

.19 

.17

.10 

.40 

.15 

.17 

.19 

.19 

(17

Calcium 

(Ca)

10 

12 

9.6 

8.4 

8.8 

5.4

10 

11 

6.9 

7.0 

5.0 

8.1 

2.6 

7.8

2.6 

5.6 

5.6 

5.3 

5.0 

3.2 

4.R

Magnesium 

(Mg)

3.0 

3.4 

3.2 

2.9 

2.6 

2.5

2.9 

3.2 

2.6 

2.3 

2.0 

2.4 

1.6 

14

1.6 

3.1 

2.0 

2.0 

1.7 

1.6 

1.5

Sodium 

(Na)

9.8 

7.1 

4.7 

5.2 

9.3 

3.8

5.1 

6.0 

2.8 

4.0 

3.4 

3.5 

3.7 

9.

2.2 

.6 

4.0 

4.1 

3.9 

6.5 

fi.S

Potassium 

(K)

1.4 

1.2 

.8 

1.1 

.8 

.6

1.2 

1.0 

1.5 

.5 

.9 

.6 

.4 

4

.4 

.8 

.2 

.6 

.3 

.6 

i

B

b

(H
RED RIVER BASIN Continued

SALINE RIVER NEAR RYE, ARK. Continued

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Average - ---- 

Mean 

discharge 

(secondfeet)

10,810 

1,673 

862 

4,008 

7,647 

1,987 

331

1,070 

2,207 

2,444 

524 

729 

481

221 

261 

269 

391 

210 

111 

90.2 

170 

128 

140

3,111

Color

35 

30 

18 

45 

50 

30 

40

50 

50 

50 

50 

25 

35

25 

35 

23 

35 

37 

18 

8 

10 

8 

23

--

PH

6.8 

7.6

7.5 

8.0 

7.8

7.9 

7.6 

7.3 

7.4 

7.6 

7.5

7.4 

7.6

--

Specific 

conductance 

(micromhos at 

25° C )

55.4 

97.3 

95.7 

50.9 

58.4 

97.4 

99.1

90.7 

72.1 

71.9 

93.3 

119 

112

106 

89.6 

102 

76.2 

99.6 

121 

138 

110 

120 

85.0

92.2

Silica 

(Si02)

7.2 

10

8.3 

16 

12

11 

8.3

9.4 

10

8.5 

10

~

Iron

(Fe)

0.03 

.16

.01 

.16 

.39

.27 

.10 

.20 

36 

.01 

.26

.21 

.14

~

Calcium 

(Ca)

3.7 

8.0 

9.8 

4.2 

4.8 

7.4 

9.3

7.2 

6.1 

5.5 

9.7 

12 

11

17 

10 

12 

9.6 

9.1 

11 

15 

12 

12 

8.4

8.2

Magnesium 

(Mg)

1.6 

2.4 

2.9 

1.7 

1.7 

3.1 

3.7

3.0 

3.1 

2.2 

2.3 

1.4 

3.1

3.0 

2.6 

3.2 

2.4 

2.8 

3.3 

4.0 

2.9 

3.0 

2.3

2.8

Sodium 

(Na)

4.9 

5.3 

6. 

1. 

2.3 

4.3 

3.7

3.2 

3.6 

3.1 

4.7 

5.5 

4.9

1. 

3. 

2. 

1. 

5.8 

9.1 

6. 

5. 

6. 

4.

Potassium 

(K)

0.4 

.4 

5 

9 

.6 

.4 

.4

.3 

.2 

.4 

.4 

.7 

.8

6 

6 

6 

4 

.9 

1.0 

6 

0 

4 

7

4.7

B

b

(H
Temperature (° F ) of water, water year October 

Day

9 ....

19 - - - »

24 ......

25

90

29

October

79

AQ

79

79

A7

November

CO

50

an

CQ

54

54

December

4O

CQ

49

49

50

January

Afi

48

February

49

57

54

March

56

56
196 LOVER MISSISSIPPI RIVER BASIN

O 4> 3SST

S 5

0000^*000

O C- GO ^» OS CO

S

o o o o o o o 

9 CO fr- OO tO O O

ooinoiooo

>OOt-rtO

t- «

00 tt- « « 0 CD ^» 0

§2ggg

^nt-csiocsico

t-COOOSOOt-OS

3 3 2 » » » » » < < < mean men

SSS

A O C

00 CO 00
CANEY LAKE AT RED RIVER ARSENAL NEAR TEXAR

July 25, 1949 

CADDO LAKE AT LONGHORN ORDNANCE PLANT NEAR K

May 16, 1949 
198 LOWER MISSISSIPPI RIVER BASIN

-w

« sj 

as O

V «

I HI

SB

H< CO

ISCEL hemic

s1 <0 -^ 

- «

0. "s

bo a "3

ftfe

00 01

O r*

00 O O O <

28

i
VERMILION RIVER BASIN 

VERMILION RIVER AT BANCKER FERRY NEAR ABBEVI

LOCATION. At Bancker Perry about 6 miles south of Abbeville, Vermilion Parish. 

RECORDS AVAILABLE. Chemical analyses: January to September 1949.

Water temperatures: January to September 1949. 

EXTREMES, 1949. Dissolved solids: Maximum, 434 parts per million Mar. 16-17; minimum, 32 part

Total hardness: Maximum, 74 parts per million Mar. 16-17: minimum, 9 parts per million Mar. 

Water temperatures: Maximum, 92* P July 12; minimum, 46 s P Jan. 30-31, Feb. 2.

REMARKS. Top and bottom samples collected at this station and composited together. No dischar

conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, In parts per million, January to Sep

Date of collection

Jan. 18-21, 23-24 

28-31, 1949 -

Mar. 18-21, 24-25,30

Apr. 11-13, 16-20 

Apr. 21-22, 24-30 

May 1-10 

Matr 21-31 

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

7.3 

7.3 

7.2

7.3 

7.2 

7.2 

7.3 

7.2

7.1 

7.4 

7.1 

7.5 

6.7 

7.1

7.1 

7.2 

7.1 

7.0 

7.6 

7.5 

7 R

Specific 

conductance 

(micromhos at 

25" C)

211 

561 

408

183 

310 

374 

136 

145

193 

173 

883 

232 

53 

121

129 

169 

381 

174 

170 

160 

1R2

Silica 

(SiO,)

8.2 

6.8

7.5

8.6 

8.8 

7.8 

6.2 

8.0

14 

10 

6.2 

8.1 

3.0 

4.8

5.4 

7.4 

6.2 

7.2 

11 

11 

12

Iron 

(Fe)

0.50 

1.6

.80 

1.4 

.05 

.10 

.10

Calcium 

(Ca)

4.8 

11 

9.4

5.8 

7.0 

10 

5.3 

7.7

10 

8. 2 

14 

6.5 

1.1 

4.7

6.3 

8.2 

10 

6.5 

8.9 

8.7 

7 R

Magnesium 

(Mg)

7.3 

5.0 

7.2

6.6 

7.1 

4.4 

4.1 

4.2

5.1 

4.5 

9.4 

7.1 

1. 5 

2.2

5.5 

5.9 

6.3 

3.3

4.5 

4.1

3 K

Sodium 

(Na)

Potassium 

(K)

24 

95 

63

22 

41 

57 

15 

14

20 

18 

139 

26 

7.9 

16

11 

15 

54 

23 

19 

19 

»»

Bicarbonate 

(HCO,)

35 

29 

35

37 

35 

37 

25 

36

50 

41 

28 

26 

11 

23

28 

34 

31 

30 

46 

46 

44

Sulfate 

(SOJ

8.2 

12

17

6.3 

6.1 

5.2 

5.6 

4.7

3.7 

3.5 

3.0 

3.3 

2 

2.8

3.0 

3.4 

5 

4 

4.2 

3.5 

 >.. 1

I/The sum of the mineral constituents, rather than residue on evaporation, is reported due to the large amount of organic 
VERMILION RIVER BASIN Continued 

VERMILION RIVER AT BANCKER FERRY NEAR ABBEVILLE, LA

Chemical analyses in parts per million, January to September I

Date of collection

June 2-4, 7-10, 1949

Sept. 21-30 

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

PH

7.7 

7.3 

7.3 

7.4 

7.4

7.4 

7.4 

7.3 

7.1 

7.6

7.6 

7.6 

7.6 

7.2 

7.6 

7.7 

7.3 

7.3

Specific 

conductance 

(micromhos at 

25" C )

203 

168 

302 

128 

223

243 

259 

126 

125 

213

173 

194 

667 

327 

223 

253 

262 

282

Silica 

(SiO,)

11 

12 

12 

9.5 

13

13- 

13 

7.2 

8.4 

13

13 

13 

16 

12 

18 

20 

13 

13

Iron 

(Fe)

"

Calcium 

(Ca)

6.8 

7.0 

8.7 

5.7 

12

14 

6.6 

5.5 

6.4 

8.8

8.7 

11 

14 

9.7 

8.8 

12 

13 

12

Magnesium 

(Mg)

3.6 

3.2 

4.1 

2.7 

5.3

6.0 

6.6 

2.5 

3.3 

4.4

4.6 

5.2 

7.8 

4.8 

4.2 

5.6 

9.2 

8.1

Sodium 

(Na)

Potassium 

(K)

28 

22 

45 

20 

23

26 

36 

16 

13 

26

19 

18 

103 

46 

29 

30 

21 

28

Bicarbonate 

(HCO,)

35 

37 

38 

31 

S3

70 

74 

30 

35 

41

47 

48 

45 

40 

43 

62 

59 

58

Sulfate 

(SO.)

4.9 

4 

4.0 

9 

4

6.0 

4 

2 

3.0 

2.6

4.9 

8.0 

4 

6.0 

4.8 

7.4 

6.9 

5.2

Ch

r

(C
Temperature ( ° F ) of water, January to S

Day

1 1

99

23

October November December January

"

"

""

"

61

February March

58

62

ou

66
PART 8-WESTERN GULF OF MEXICO BASINS

MERMENTAU RIVER BASIN 

MERMENTAU RIVER AT LAKE ARTHUR, LA.

LOCATION.--At bridge on State Highway 25 about one-half mile east of Lake Arthur, Jefferson Davis 

RECORDS AVAILABLE. Chemical analyses: January to September 1949.

Water temperatures: January to September 1949.

REMARKS. Top and bottom samples collected at this station and composited together. No discharge 

conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, January to Septemb

Date of collection

Jan. 19-20, 1949 

Apr. 1-4, 6, 8-10 

May 11-20 -

May 21-25, 27-31 -

Aug. 12, 14-15, 18-20

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

pH

7.2 

7.0 

6.6 

6.8 

6.6 

6.9

7.6 

7.7 

6.8 

7.0

7.2

6.8 

6.8 

7.2 

7.1 

7.1 

7.2

7.2

7.7 

7.7 

7.5 

7.5

Specific 

conductance 

(micromhos at 

25° C)

192 

125 

127 

206 

110 

114

104 

127 

111 

91 

86 

84

80 

70 

90 

125 

140 

180

315 

215 

145 

131 

ISO 

204 

192 

209 

232

Silica 

(SiO,)

6.0 

6.0 

6.5 

7.9 

6.3 

7.2

8.8 

6.6 

5.0 

5.0 

5.3 

5.3

5.3 

4.8 

6.5 

8.1 

7.5 

8.4

7.5 

6.2 

7.5 

9.2 

8.4 

13 

9.9 

13 

11

Iron 

(Fe)

0.90 

1.6 

1.5 

1.5 

.15

Calcium 

(Ca)

3. 8 

2.1 

5.8 

3.6 

3.6 

4.2

3.9 

2.6 

3.2 

3.6 

3.4 

3.1

3 2 

2. 8 

3.2 

3. 8 

4.2 

4.6

6.1 

5.4 

5.2 

5.8 

6.5 

8.5 

6.8 

7.4 

8.4

Magnesium 

(Mg)

3.1 

6.9 

2.4 

1.8 

1.9 

3.6

2.8 

2.9 

6.2 

2.3 

2.1 

1.8

1.9 

1.9 

2.2 

2.6 

2.9 

3.4

5.5 

3.6 

2.3. 

3.6 

4.4 

4.5 

4.3 

4.4 

5.2

Sodium 

(Na)

Potassium 

(K)

33 

11 

13 

34 

15 

10

13 

19 

7.5 

11 

9.9 

12

11 

9.9 

15 

20 

21 

27

46 

43 

29 

25 

26 

27 

27 

28 

31

Bicarbonate 

(HCO,)

24 

23 

22 

28 

22 

22

26 

25 

20 

20 

20 

20

20 

20 

24 

22 

26 

28

26 

54 

60 

63 

87 

60 

53 

50 

56

Sulfate 

(S04)

13 

3.8 

3.4 

4.8 

3.0 

3.5

2.9 

4.7 

3.5 

3.0 

1.5 

1.5

2.0 

1.5 

3.8 

5.2 

5.6 

6.7

11 

8 

2 

2.2 

2 

2.3 

2.6 

2.8 

2.3

Ch

ri

(C

I/The sum of the mineral constituents, rather than residue on evaporation, is reported due to the large amount of organic m
Temperature (° F ) of water, water year October 

Day

9 *

12 «-

13

22

25

no

9Q

October November December January

54

58

54

February

50

54

CO

59

March

A9

A9

75

AQ
CALCASIEU RIVER BASIN 

CALCASIED RIVER AT LAKE CHARLES, LA.

LOCATION. At foot of Ryan St., Lake Charles, Calcasieu Parish. September samples collected at U

RECORDS AVAILABLE. Chemical analyses: January to June, September 1949.

Water temperatures: January to June, September 1949.

REMARKS. Unless noted as Top (4/) or Bottom (3/), samples are a composite of top and bottom. No 

of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, January to Septem

Date of collection

Jan. 20-31, 1949 

May 21-27 4/, 28-29

May 21-22, 2437 

May 23, 2637 

June 11, 15-163/ 

Sept. 3, 5-104/ ----- 

Sept. 3, 5-10 3/ 

Sept. 11-194/ ------ 

Sept. 11-1937 ----- 

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

PH

6.9 

6.5 

6.6 

6.5 

7.3 

7.1 

7.4 

6.6

6.6 

6.3 

6.9 

6.7 

6.9 

7.7

7.0 

7.4 

7.4 

7.6 

8.8

6.9 

6.9 

7.0 

7.2

Specific 

conductance 

(micromhos at 

25* C)

79.1 

75.4 

61.1 

58.7 

65.8 

67.5 

114 

38.9

38.1 

37.6

OQ A

46.6 

73.3 

336

165 

649 

1,140 

1,950 

3,860

124 

955 

7,370 

14,600

3,930 

18,900 

5,360 

21,600

Silica 

(S102)

6.5 

7.8 

6.2 

6.6 

8.1 

6.8 

11 

3.0

4.7 

4.5

7.1 

12 

15

15 

13 

13 

18 

32

20 

17 

22 

18

15 

11 

16 

12

Iron 

(Fe)

0.15 

.47

.50

--

Calcium 

(Ca)

0.9 

2.2 

2.0 

2.0 

2.1 

2.3 

3.8 

1.2

1.2 

1.4

1.4 

2.4

3.6 

6.4 

9.2

18

4.0 

10 

58 

121

28 

147 

37 

171

Magnesium 

(Mg)

2.9 

1.3 

1.3 

1.7 

2.2 

2.1 

2.6 

1.7

1.6 

1.0

1.4 

1.6

3.8 

13 

22

12

3.3 

19 

155 

324

79 

461 

110 

558

Sodium 

(Na)

Potassium 

(K)

9.8 

10 

7.6 

7.1 

7.4 

8.2 

17 

4.6

4.9 

4.8 

4.1 

4.9 

11 

48

23 

97 

172 

306 

255

26 

155 

1,260 

2,670

646 

3,660 

894 

4,330

Bicarbonate 

(HCO,)

13 

10 

10 

12 

16 

16 

23 

8

10 

10 

10 

12 

18 

20

23 

22 

23 

28 

1,730

54 

60 

79 

106

30 

75 

35 

83

Sulfate 

(SO,)

4.4 

3.3 

2.9 

3.3 

3.2 

3.0 

5.8 

3

2.0 

1 

1' 

1 

1 

11

4.9 

24 

42 

65 

50

2 

37 

322 

680

160 

943 

224 

1,110

Ch

rid

(C

1

1

1

1

1

1

2

1

7

3

16

30

54

43

2

25

2,22

4,71

1,14

6,51

1,58

7,74

I/The sum of the mineral constituents, rather than residue on evaporation, is reported due to the large amount of organic m

27450 parts per million Ammonia as NH,. 2/Bottom samples. i/Top samples.
Temperature (° F ) of water, January to 

Day

12 

1 fl

23

24

On

no

9O

31

October November December January

55

53 

55 

57 

57 

59

63 

61 

60 

54 

54 

53

--

February

49 

48 

47 

47 

47

50 

51 

52 

52 

54

60 

«1 

59 

65 

65

64 

65 

62 

60 

60

63 

64 

65 

65 

65

65 

62 

63

58

March

62 

62 

62 

59 

59

63 

63 

63 

63 

63

62 

63 

61 

62 

63

64 

64 

56 

62 

62

65 

64 

67 

68

68 

60 

64

63
SABINE RIVER BASIN 

SABINE RIVER NEAR RULIFF, TEX.

LOCATION. At gaging station at bridge on State Highway 235, 2.4 miles north of Ruliff, Newton Coun

Railway bridge, and 4.5 miles downstream from Cypress Creek. 

DRAINAGE AREA.--9,440 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946,October 1947 to September 1

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 411 parts per million Dec. 26-27; minimum, 67 part

Total hardness: Maximum, 50 parts per million Sept. 13-17; minimum, 14 parts per million Nov. 2

Water temperatures: Maximum, 87° F on several days in July and August; minimum, 47° F Feb. 1. 

EXTREMES, 1945-46, 1947-49.--Dissolved solids: Maximum, 411 parts per million Dec. 26-27, 1948; m

Total hardness: Maximum, 64 parts per million Aug. 1, 11, 16-19, 21-23, 1948; minimum, 14 parts 

Water temperatures: Maximum, 89° F July 25-27, 1948; minimum, 34° F Jan 24, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Nov. 20, 26-28 

Nov. 21-25, 29,

Dec. 21-25, 28-31 

Jan. 1-4, 1949 

Mar 23-31 

Mean 

discharge 

(secondfeet)

415 

515 

442 

599 

1,079 

8,545

11,380

3,360 

1,627 

3,006 

2,620 

5,365 

12, 580 

6,200 

19,800

22, 010 

21,640 

17, 170 

19,450 

15, 880 

as «un

Temperature 

(°F)

pH

7.9

6.7 

6.9 

6.8 

7.2 

7.3

7 0

Specific 

conductance 

(micromhos at 

25° C)

314 

236 

238 

296 

355 

169

102

334 

299 

320 

695 

198 

110 

153 

116

125 

110 

140 

143 

143

Silica 

(Si02)

17 

17 

18 

19 

17 

8.4

6.2

13 

17 

17 

18 

11 

8.8 

14 

9.8

10 

9.9 

11 

11 

11

Iron 

(Fe)

0.15

.20 

.30 

.50

Calcium 

(Ca)

10 

8.5 

8.9 

8.6 

9.6 

4.2

3.4

8. 2 

8.2 

8. 2 

14 

7.4 

4.2 

5.1 

4.0

4.2 

3.8 

5.8 

6.1 

7.2

Magnesium 

(Mg)

3.7 

3.2 

3.5 

3.1 

3.6 

2.0

1.4

1.7 

1.7 

1.1 

2.0 

3.1 

1.9 

2.9 

2.6

3.1 

4.8 

3.5 

3.3 

4.4

Sodium 

(Na)

Potassium 

(K)

45 

34 

32 

47 

52 

24

15

54 

49 

54 

122 

24 

15 

21 

15

15 

8.6 

14 

16 

15

Bicarbonate 

(HCOS )

48 

46 

45 

44 

36 

9

9

20 

24 

23 

20 

14 

10 

18 

12

11 

13 

16 

19 

25

Sulfate 

(S04)

8.7 

8.4 

7.1 

8.3 

7.7 

7.7

7.1

12 

12 

14 

32 

12 

11 

10 

9.5

13 

12 

13 

14 

15

Chl

rid

(Cl
June 12-16, 29-30 

July 1-12, 22-23 

Sept. 1-12, 18-30 

Weighted average --

9 4Q9. 5 1QA

4,270

3,267 

3on°,

1,620

8,636

7

9

6.7

7.0-

00

QE

237

230 

129

OlQ

It A

322

147

8

1

1 O

1 o

14

1 o

17

17

11

--

--

---

8

1

3

0

4

0

6

0

197

0

108

9

10

12

10

6.0

3 4

I

*

3

1

3 2

2

0

2.6

4.6 3 Q

3.S

3.1

13

23

22

35

37 

25

OR

Oft

41

18

90

OQ

00

01

38

09

68

00

39

21

9

0

7 9

13

OQ

20

115

0

7

0

8.7

12
SABINE RIVER BASIN Contin

SABINE RIVER NEAR RULIFF, TEX.--

Temperature (° F ) of water, water year October 1

Day

19

9(1

94

October

75

70

73

73

ao

November

79

A7

59

December

56

en

CO

CO

CO

eg

56

January

59

54

58

CO

59

February

AQ

54

CO

58

March

59

A9

A9
NECHES RIVER BASIN 

NECHES RIVER AT EVADALE, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 96, 200 feet upstream from Gulf, Colorad

and 15 miles upstream from Village Creek. 

DRAINAGE AREA. 7,908 square miles. 

RECORDS AVAILABLE.--Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 218 parts per million Dec. 11-20; minimum, 96 pa

Total hardness: Maximum, 53 parts per million July 11-20; minimum, 17 parts per million Mar. 

jfater temperatures: Maximum, 88° F June 17, July 14; minimum, 37 F Jan. 31. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 218 parts per jnillion Dec. 11-20, 1948; minimum, 

Total hardness: Maximum, 70 parts per million Nov. 1-10, 1947; minimum, 17 parts per million 

Water temperatures: Maximum, 88° F June 17, July 14, 1949; minimum, 37°'F Jan. 30-31, 1948, 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 -----

Jan. 1-4, 10, 1949 

Feb. 11-18, 27-28 

Mor 91-51 

Mean 

discharge 

(secondfeet)

233 

247 

244 

280 

399 

2,562

1,363 

962 

1,748 

2,538 

4,428 

2,516 

11,270

13,370 

12,660 

8,259 

12,700 

8,868 

is nnn

Temperature 

<°F)

PH

7.1 

7.2

7.0

6.7 

6.8 

6.8 

7.2 

7.3 

fl.fi

Specific 

conductance 

(micromhos at 

25° C)

302 

253 

250 

296 

370 

ISO

238 

348 

271 

203 

148 

212 

103

115 

138 

189 

137 

170 

107

Silica 

(SiO,)

20 

20 

18 

18 

18 

9.9

16 

19 

18 

18 

15 

19 

11

12 

12 

15 

14 

14 

9.0

Iron 

(Fe)

0.20 

.30 

.30

Calcium 

(Ca)

11 

9.2 

9.6 

10 

11 

5.1

8.4 

11 

8.5 

7.0 

7.2 

7.9 

4.4

4.2 

5.8 

7.4 

6.4 

7.6 

4.4

Magnesium 

(Mg)

5.2 

6.2 

5.5 

5.2 

4.5 

3.5

3.1 

3.4 

2.2 

2.9 

2.4 

3.7 

1.8

3.5 

3.7 

3.5 

3.1 

3.7 

1.5

Sodium 

(Na)

Potassium 

(K)

43 

31 

32 

41 

56 

18

32

51 

40 

27 

19 

27 

12

12 

15 

22 

14 

19 

14

Bicarbonate 

(HCOa )

68 

58 

58 

59 

60 

14

20 

24 

21 

20 

19 

24 

15

12 

13 

13 

16 

20 

15

Sulfate 

(SOJ

12 

11 

12 

11 

11 

16

23 

25 

21 

23 

19 

19 

14

17 

20 

26 

19 

22 

14

C
NECHES RIVER BASIN 

NECHES RIVER AT EVADALE, TEX. Continued

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Apr. 1-10, 1949 -----

June 11-16, 25-27 

June 17-24, 28-30 

Sept. 1-10 ---- 

Weighted average 

Mean 

discharge 

(secondfeet)

19,980 

7,603 

15,990 

16,740 

4,708 

2,107

2,267 

2,628 

4,705 

1,512 

1,168 

1,422

1,254 

1,286 

746 

533 

584 

1,027 

893

5,030

Temperature 

<°F)

pH

6.7

6.7 

6.8 

7.3 

7.3

7.0 

7.3 

7.0 

7.6

6.9 

6.9 

6.9 

7.1 

6.8 

6.8 

6.6

--

Specific 

conductance 

(micromhos at 

25" C )

108 

186 

104 

112 

223 

236

188 

192 

114 

183 

260 

186

218 

241 

303 

258 

314 

329 

178

144

Silica 

(SiO,)

12 

14 

9.9 

12 

17 

19

16 

17 

13 

19 

23 

17

16 

18 

18 

19 

20 

18 

14

13

Iron 

(Pe)

0.98

.82 

1.2

--

Calcium 

(Ca)

5.4 

7.9 

4.8 

6.0 

11 

11

8.8 

8.8 

3 9 

9! 6 

12 

9.2

8.8 

8.2 

10 

9.6 

10 

9.9 

6.7

6.2

Magnesium 

(Mg)

2.1 

4.0 

1.9 

2.1 

4.5 

4.7

3.5 

4.7 

4.6 

4.8 

5.7 

4.4

4.0 

3.8 

4.3 

5.3 

3.8 

4.4 

3.8

2.9

Sodium 

(Na)

Potassium 

(K)

12 

22 

12 

14 

25 

26

21 

21 

11 

 18 

37 

32

32 

30 

42 

32 

44 

46 

22

17

Bicarbonate 

(HCOS )

15 

24 

13 

23 

33 

36

29 

31 

20 

32 

72 

68

44 

32 

40 

46 

44 

40 

34

20

Sulfate 

(S04)

14 

21 

12 

12 

20 

19

18 

15 

10 

12 

10 

8.8

12 

11 

13 

11 

9.1 

9.9 

7.0

16

C

r

(
Temperature (* F ) of water water year October 

Day

1 

9 -

12 - - -

1 ft

19

20

9«

Oft

October

71

November

--

AQ

December

52

54

Aft

January

47

KO

51

60

February

38

49

Aft

RA

on

59

58

March

58

on

CO

QQ

CQ

58

A9
NECHES RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN NECHES RIVER BAS

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C.)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chlor

(Cl)

ANGELINA RIVER NEAR HORGER

Oct. 24-30, 1948 1/101

FERN LAKE NEAR NACOGDOCHES

7.6 | 83. 81 2.8 | Oct. , 1948 I 1.6 8.7 

STRIKER CREEK NEAR SUMMERFIELD

Apr. 13, 1949 | 390 | 5.61 1,140 | 12 

TAYLOR'S BAYOU NEAR FANNETT

Dec. 1, 1948 7.5 585

I/Mean discharge (second-feet).
TRINITY RIVER BASIN 

TRINITY RIVER NEAR OAKWOOD, TEX.

LOCATION. At gaging station at bridge on U. S. Highways 79 and 84, li miles upstream from Inter

northeast of Oakwood, Leon County. 

DRAINAGE AREA. 12,912 square miles (revised). 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,190 parts per million Dec. 12-14, 19-20; minimu

Total hardness: Maximum, 238 parts per million Aug. 13-15; minimum, 100 parts per million Jun

Water temperatures: Maximum, 89° f July 19, Sept. 9, 12; minimum, freezing point Feb. 5. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 1,260 parts per million Aug. 29-31, 1948; minimum

Total hardness: Maximum, 271 parts per million Oct. 28, 30-31, 1947; minimum, 93 parts per mi

Water temperatures: Maximum, 89° F July 31, 1948, July 19, Sept..9, 12, 1949; minimum, freez

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, In parts per million, water year October 1948 t

Date of collection

Oct. 1-10, 1948 -----

Dec. 11, 15-18 ----- 

Dec. 12-14, 19-20 

Dec. 21-23, 28-31 

Jan. 1-10, 1949 

Feb. 20, 26-28 

Feh 51-5!i . 

Mean 

discharge 

(secondfeet)

577 

462 

339 

306 

257 

304 

382

274 

372 

531 

425 

399

318 

637 

1,168 

9,243 

10,820 

2,998 

9,978 

5 515

PH

7.9 

7.8 

7.9 

7 R

Specific 

conductance 

(micromhos at 

25° C )

902 

878 

1,150 

1,290 

1,440 

1,620 

1,600

1,390 

1,140 

2,150 

1,300 

2,060

1,400 

1,270 

1,180 

314 

375 

532 

395 

7ns

Silica 

(SiO.)

11 

7.8 

7.8 

6.8 

9.4 

9.2 

14

13 

13 

13 

13 

14

14 

16 

12 

7.5 

9.0 

11 

9,2

15

Iron 

(Fe)

Calcium 

(Ca)

54 

48 

58 

58 

50 

63 

46

57 

48 

64 

46 

56

52 

46 

38 

37 

43 

56 

38 

61

Magnesium 

(Mg)

7.8 

6.9 

9.2 

9.6 

10 

11 

10

10 

9.4 

11 

7.9 

11

10 

9.8 

9.0 

3.9 

4.0 

5.6 

4.6

K 4

Sodium 

(Na)

Potassium 

(K)

118 

117 

166 

190 

234 

256 

268

218 

168 

359 

210 

351

209 

193 

186 

21 

28 

45 

32 

fSO

Bicarbonate 

(HCO,)

166 

155 

178 

180 

168 

173 

133

142 

124 

141 

115 

141

138 

112 

97 

96 

110 

137 

107 

14B

Sulfate 

(S04)

86 

66 

80 

91 

109 

109 

103

133 

86 

126 

87 

116

89 

81 

62 

42 

44 

65 

37 

fS4

Chlo

(C

2

2

2

3

3

2

4

2

4

2
TRINITY RIVER BASIN Continued

TRINITY RIVER NEAR OAKWOOD, TEX. Continued

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Mar. 1-10, 1949 

July 21, 24-26, 30 

July 22-23, 27-29, 31

Aug. 11-12, 16-20 ~

Weighted average -

Mean 

discharge 

( second - 

feet)

23,990 

2,161 

3,748 

9,266 

10,780 

2,854 

5,430 

2,897

3,514 

1,927 

17,120 

17,410 

2,874 

8,947 

13,600 

5,275

3,044 

975 

710 

835 

840 

434 

360 

548 

255

258 

781 

542 

384

3,867

pH

8.1 

8.2 

8.2 

8.1 

8.0 

7.8 

8.0

7.7 

7.9 

8.0 

8.2 

8.3 

8.0 

8.0 

8.0

8.0 

8.0 

8.3 

8.0

8 9 . u

8. 2 

8.2 

8.2 

8.2

7.8 

7.6 

7.8 

7.9

-

Specific 

conductance 

(micromhos at 

25° C )

333 

694 

848 

430 

357 

604 

469 

721

518 

707 

339 

372 

606 

287 

314 

604

422 

700 

826 

791 

1,300 

931 

1,120 

2,010 

1,220

1,440 

1,640 

874 

905

458

Silica 

(SiO.)

12 

13 

11 

11 

11 

12 

9.8 

11

15 

13 

15 

15 

14 

10 

11 

11

13 

14 

15 

12 

13 

14 

15 

17 

17

9.2 

17 

11 

11

12

Iron 

(Fe)

Calcium 

(Ca)

42 

70 

67 

47 

46 

67 

46 

66

58 

61 

44 

48 

61 

35 

40 

54

47 

60 

69 

56 

58 

60 

60 

74 

69

70 

70 

52 

53

47

Magnesium 

(Mg)

4.5 

6.2 

6.3 

3. 9 

3.8 

5.2 

5.0 

7.0

5.1 

6.6 

3.6 

3.9 

5.5 

3.1 

2.9 

5.1

5.9 

6.7 

6.6 

5.9 

8.5 

8.3 

12 

13 

13

9.4 

11 

6.3 

6.8

4.6

Sodium 

(Na)

Potassium 

(K)

20 

65 

94 

35 

22 

49 

41 

70

39 

72 

20 

24 

56 

19 

21 

62

32 

73 

94 

97 

196 

104 

149 

311 

158

216 

250 

112 

123

40

Bicarbonate 

(HCO,)

116 

176 

166 

119 

128 

180 

126 

162

152 

159 

130 

147 

179 

108 

124 

158

143 

173 

201 

165 

166 

178 

182 

190 

203

214 

193 

144 

156

131

Sulfate 

(S04)

44 

75 

68 

53 

40 

62 

49 

83

58 

62 

28 

33 

52 

27 

24 

46

36 

56 

80 

76 

77 

62 

109 

113 

111

120 

162 

67 

79

45

Chlori

(Cl)

1

8

13

3

2

5

4

8

4

9

2

2

6

1

2

7

3

9

10

10

27

13

17

44

19

26

29

14

14

4
Temperature (" F ) of water, water year October 1

Day

12

n ..................

18

21 

99

OQ

9d

go

29- ----- 

October

on

72

ft*>

on

A9

November

on

52

57

57

7Q

52

AO

52

AO

57

December

53

50

en

48

45

do

54

54

52

54

43

52

January

42

52

49

45

59

57

07

d8

February

Op

42

32

40

42

44

57

52

59

57

59

59

58

54

March

AO

cn

52

58

52

57

57

50

57

A9

64

A
TRINITY RIVER BASIN Continued 

TRINITY RIVER AT ROHAYOR, TEX.

LOCATION. At Gulf, Colorado & Santa Fe Railway bridge, a quarter of a mile west of Romayor, Liberty 

upstream from gaging station. 

DRAINAGE AREA.--17,190 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 720 parts per million Dec. 11-20; minimum, 162 part

Total hardness: Maximum, 202 parts per million Sept. 21-26; minimum, 68 parts per million Feb. 

EXTREMES, 1945-49. Dissolved solids: Maximum, 720 parts per million Dec. 11-20, 1948; minimum, 13

Total hardness: Maximum, 202 parts per million Sept. 21-26, 1949; minimum, 51 parts per million 

REMARKS. Discharge records for gaging station at Romayor, Tex., for water year October 1948 given 

sampling point and gaging station except during periods of heavy local rains. Records of specif

office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Feb. 11-17, 1949 

Feb. 18-25 

Mar. 11-13, 20 

Mat* 91 31

Mean 

discharge 

(secondfeet)

619 

641 

508 

479 

567 

706

522 

548 

4,799 

4,052 

23,070

19,580 

20,330 

11,050 

16,900 

11,270 

6,931 

is ny.n

PH

8.1

7.2

7.2 

7.6 

7.8 

7.3 

7.4 

7.5 

7 n

Specific 

conductance 

(micromhos at 

25° C )

997 

991 

953 

907 

1,070 

1,100

1,190 

1,280 

538 

695 

264

381 

390 

671 

448 

530 

542 

ass

Silica 

(SiO.)

6.0 

3.4 

1.9 

4.1 

6.1 

5.0

7.0 

14 

11 

13 

12

9.9 

13 

15 

11 

12 

13 

ia

Iron 

(Fe)

0.00 

10

Calcium 

(Ca)

37 

36 

36 

42 

50 

50

58 

56 

54 

69 

21

43 

43 

63 

42 

52 

51 

31

Magnesium 

(Mg)

8.3 

9.2 

8.8 

7.0 

8.1 

9.4

8.5 

8.5 

5.0 

5.9 

3.8

4.4 

4.1 

6.7 

4.9 

5.6 

5.2 

4.8

Sodium 

(Na)

Potassium 

(K)

148 

146 

140 

129 

155 

157

169 

193 

45 

66 

29

27 

29 

60 

41 

48 

48

an

Bicarbonate 

(HCO,)

114 

118 

132 

145 

153 

141

148 

135 

136 

199 

68

128 

123 

179 

118 

149 

151 

97

Sulfate 

(S04)

59 

58 

67 

47 

53 

76

68 

64 

57 

75 

34

32 

37 

59 

47 

57 

53 

30

Chlori

(Cl)

19

19

17

17

22

21

24

28

5

7

2

3

3

7

4

5

5

3
May i-iv 

May 11-20 

May 21-26 

May 27-31 

June 1-10- 

June 11-19- 

June 20-25 

June 26-30 

July 1-10 ~ 

July 11-20 - 

July 21-28 - 

July 29-31 - 

Aug. 1-10 - 

Aug. 11-20- 

Aug. 21-31-

Sept. 1-5 

Sept. 6-10 -

Sept. 11-14

Sept. 15-20

Sept. 21-26

Sept. 27-30

Weighted average

5,521

2,699

3,488

13,440

21,820

10,540

9,108

13,770

4,442

1,259

1,201

1,153

1,106

821

509

483

472

924

1,771

1,030

644

5,566

554

658

937

343

443

442

694

465

581

593

705

1,130

814

978

1,080

1,290

671

538

1,350

1,180

337

499

14

14

13

13

15

16

14

12

13 

13 

a 4 

10 

10 

14 

12

11

13

11

9.2

9.2

8.8

12

7.4 

8.7 

7.6 

4.6 

6.0 

6.2 

8.7 

7.1

7.0 

6.4 

7.4 

8.7 

6.6 

7.4 

9.2

9.2

5.6

10

13

14

5.4

5.7

46

61

115

22

33

32

66

34

52

56

81

147

100

122

141

193

89

56

174

163

29

162

198

186

140

165

159

194

173

199

154

167

174

173

164

131

127

120

86

136

193

108

60

44

54

24

24

29

70

29

36

42

61

68

56

48

71

89

47

50

71

113

15

2

2

2

2
TRINITY RIVER BASIN--Continued

CLEAR FORK TRINITY RIVER AT FORT WORTH, T

LOCATION.--At Texas & Pacific water plant 1/8 mile downstream from gaging station which is at bri

Texas & Pacific Railway bridge at Fort Worth, Tarrant County, and 3 miles upstream from mouth. 

DRAINAGE AREA. 526 square miles, (revised) . 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 621 parts per million Jan. 11-31; minimum, 124 pa

Total hardness: Maximum, 230 parts per million July 1-10; minimum, 68 parts per million May 17

Water temperatures: Maximum, 87°F July 10, 13; minimum, freezing point on several days during 

REMARKS. Records of discharge for water year October 194a to September 1949 are given in Water-S

of daily samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Oct. 1-10, 1948 

n-n 1 1 9n

Jan. 1-10, 1949 

Feb. 21-23, 28 

tp h 94 97_

Mar. 21, 25, 28-31 

Mar. 22-24, 26-27-

Hean 

discharge 

(secondfeet)

1/0 

I/O

i/.os

1/0 

1/0 

I/O

1/0 

I/O 

I/. 25 

I/.1 07 

1/16.0

8.17 

9.27 

17.0 

820 

63.0 

35.9 

916 

878

PH

7.8 

7.5

Specific 

conductance 

(micromhos at 

25° C )

778 

882 

943 

951 

979 

976

982 

960 

965 

981 

1,020

489 

466 

489 

278 

470 

484 

418 

270

Silica 

(SiO.)

18 

11 

15 

15 

16 

17

15 

16 

16 

15 

15

8.8 

6.6 

7.5 

11 

10 

8.2 

12 

9.2

Iron 

(Fe)

0.05

Calcium 

(Ca)

33 

29 

29 

28 

31 

31

36 

39 

40 

44 

42

60 

56 

58 

40 

73 

70 

65 

36

Magnesinm 

(Mg)

5.4 

4.8 

3.8 

3.6 

4.0 

4.6

5.5 

2.2 

2.2 

4.5 

6.3

7.3 

6.6 

6.0 

4.0 

5.4 

6.2 

5.7 

5.5

Sodium 

(Na)

i; 

ii 

i' 

i' 

i

171

1 

1 

1 

1( 

1

: 

:

Potassium 

(K)

9 

6

n

rs 

n

7.6

rs 

re 

re

!6

r4

i

5 

16 

0 

19 

23 

5 

4

Bicarbonate 

(HCO,)

248 

260 

263 

263 

266 

268

279 

280 

283 

279 

284

185 

175 

183 

120 

206 

206 

194 

127

Sulfate 

(S04)

71 

88 

98 

101 

106 

106

104 

105 

103 

106 

114

51 

47 

47 

20 

39 

43 

29 

17

Chlor

(Cl)

7

9

10

10

10

10

10

10

10

10

11

2

3

3

1

2

2

1

1

I/Includes days of less than 0.05 second-foot flow.
Apr. 1-10 

Apr. 11-20 - 

Apr. 21-30 - 

May 1-7 

May 8-10 - 

May 11-13, 18 - 

May 14-16, 19-20- 

May 17 - 

May 21-25, 28, 31 - 

May 26-27, 29-30-

June 1-10 -----

June 11-20 

June 21-24, 30 

June 25-29 

July 1-10 

July 11-20 

July 21-31 

Aug. 1-10 

Aug. 11-20- 

Aug. 21-31- 

Sept. 1-10 - 

Sept. 11-15 

Sept. 16-20 

Sept. 21-30

159

99.1

182

77.3

402

658

474

42,500

740

4,238

264

217

343 

1,047 

84.6 

38 7 

2s! 5

12.5

3.16

2.84

64.3

17.9

3.42

8.1 

8.0 

7.8

7.6

7.7 

7.7 

8.1

8.0

8.1

8.2

7.9

8.0 

7.8 

8.1

7.9

8.0 

8.0 

7.4 

8.0 

7.9 

7.8 

7.4

472

486

451

487

318

333

490

180

513

505

241

272

9.4

7.2

10

10

8.2

12

12

13

6.2 

7.6

6.7

6.8 

4.9 

4.8 

6.1 

3.1 

6.0 

4.1

6.8 

6.7 

9.4 

4.9 

9.8 

9.8 

8.8

7.9 

6.4 

7.6 

8.1 

6.9 

4.9 

6.4

220

216

206

227

145

157

220

98

215

137

239

192

195

163

226

206

214

183

200

192

203

123

129

35

38

31

33

20

18

29

6.9

32

12

38

31

38

18

43

50

47

45

33

36

37

41

13

15

Weighted average ~ 
TRINITY RIVER BASIN--Continu

CLEAR FORK TRINITY RIVER AT FORT WORTH, 

Temperature (°F ) of water, water year October 194

Day

1 ... . 

13

19

20

91

99

23

no

29

verage

October I/

61 

70 

70

61 

61 

61 

61 

60

61 

61 

61 

61 

70

60 

60 

60 

60 

60

60 

60 

60 

60 

59

60 

59 

60 

60 

60 

70

62

November I/

60 

60 

60 

60 

60

60 

50 

50

50 

50 

50 

60 

60

60 

60 

55 

56 

56

54 

52 

53 

53

55

54 

54 

52

51

55

December I/

51 

51 

52

54 

53

52 

51

52

52 

53 

50 

50 

80

50 

50 

50 

50 

50

50 

50 

50 

50 

50

40 

40 

50

47 

45

50

January \J

45

40 

40

40 

40 

50 

50 

40

40 

40

41 

42 

41 

40

42 

44 

46 

48 

45

39 

39 

39 

37 

34 

33

41

February

34 

34 

34 

35 

37

39 

40 

44 

44 

45

47 

50 

52 

49 

49

50 

49 

51 

52 

54

54 

54 

55 

60 

59

54 

53 

52

48

March

50 

48 

50 

52 

55

57 

59 

59 

59 

57

57 

57 

57 

56 

55

56 

57 

56 

56 

57

59 

58 

60 

63 

63

62 

62 

64 

86 

68 

66

58

I/No flow in stream for the period Oct. 1-Dec. 29 and Jan. 2-16; daily temperature measurements take

2/No thermograph record; miscellaneous temperature measurement.
TRINITY RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN TRINITY RIVER 

Chemical analyses, in parts per million, water year October 194

Date of collection

Mean 

discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25' C )

Silica 

(SiO,)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HC08)

Sulfate 

(SO.)

Chl

(C

TRINITY RIVER AT DEVERS PUMPING PLANT NEAR MO

Oct. 1-8, 1948 

Oct. 11, 14-20 -

July 11-14, 16, 

18-20, 1949 

July 21-28, 30-31-

Sept. 23-27, 29-30 

Sept. 21-22, 28 

7.6 

7.3

7.5 

7.6 

7.7 

7.7 

7.7 

7.4 

7.4

888 

902 

877

481 

632

733 

771 

774 

769 

916 

955 

598

8.6 

6.1 

4.6

17 

12

11 

14 

17 

13 

13 

10 

11

45 

40 

36

52

47

52 

48 

50 

52 

48 

46 

34

8.0 

8.1 

7.6

5.5 

6.2

6.4 

6.2 

7.1 

7.4 

6.9 

6.3 

5.6

122 

136 

128

37 

68

87 

94 

93 

91 

133 

140 

76

150 

130 

122

159 

138

159 

139 

155 

170 

151 

128 

97

53 

50 

50

30 

44

54 

37 

47 

48 

64 

62 

46

TRINITY RIVER AT BARBER HILL PUMPING PLANT N

Oct. 1-10, 1948 

July 2-10, 1949 7.4 

7.6 

8.0

8.0 

7.8 

7.8 

7.6 

7.6 

7.7

915 

938 

408 

547 

528

472 

441 

740 

934 

2,630 

4,130

13 

12 

14 

13

18

17 

13 

11 

11 

13 

9.2

45 

48 

47 

48 

42

41 

42 

43 

43 

66 

76

8.7 

9.0 

4.4 

6.3 

7.2

5.5 

5.2 

9.4 

10 

41 

73

128 

128 

30 

53 

55

47 

39 

89 

127 

407 

676

154 

157 

151 

150 

145

137 

134 

117 

112 

138 

133

51 

51 

28 

34 

26

27 

25 

45 

50 

119 

1911,
TRINITY RIVER BASIN--Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN TRINITY RIVER BASIN 

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Mean 

discharge 

(secondfeet)

pH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chlo

(C

TRINITY RIVER AT BARBER HILL PUMPING PLANT NEAR C

Sept. 1-4, 1949 

Sept. 5-6, 8-10 

Sor* 22-Sn _______

7.7

7.6

7 Q

2,260

3,480

v tun

11

10

IK

61

76

en

37

59

VI

349

555

139

137

98

157

* 

TRINITY RIVER AT LONE STAR PUMPING PLANT AT A

June 1-10, 1949 

Sent. 19-20 

8.2

7

0

7

0

8 

A

8

n

7

0

8 1

8 

ft

7 7

353

QQft

OO1

i asm

19

1 P.

13

in

45

s»

4.6

1C,

22

1Q.1

139

1KB

30

7fi
SAN JACINTO RIVER BASIN 

SAN JACINTO RIVER NEAR HUFFMAN, TEX.

LOCATION. At Sheldon Pumping Plant of city of Houston, Harris County, 5| miles downstream from g

Railway bridge and 3.4 miles southwest of Huffman, Harris County. 

DRAINAGE AREA. 2,791 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to July 1948, December 1948 to September 194

Water temperatures: January to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 540 parts per million Dec. 5-15; minimum, 84 part

Total hardness: Maximum, 100 parts per million Dec. 5-15; minimum, 24 parts per million Apr. 1

EXTREMES, 1945-49. Dissolved solids: Maximum, 2,210 parts per million Oct. 12, 1947; minimum, 8

Total hardness: Maximum, 488 parts per million Oct. 12, 1947; minimum, 24 parts per million Ap

REMARKS. Records of discharge for gaging station near Huffman, Tex., for water year October 1948 

No appreciable inflow between gaging station and sampling point except during periods of heavy 

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, December 1948 to S

Date of collection

Dec. 1-4, 1948 

Jan. 1-10, 1949 - 

Feb. 11-16, 23-25 

F

_t- 1 17 99

Mar. 1-4, 12-13, 16 

Mar. 5-11, 14-15,

Mar. 22-26, 31 

Mar yj.nn., -

Mean 

discharge 

(secondfeet)

145 

122 

128 

159 

156 

186 

1,433 

578

491 

1,434 

581 

19, 130 

7,264

1,761 

12, 730 

.1 SHR

PH

7.8 

7.3 

7.4 

7.0 

7.8

7.2 

7.1 

7.2

Specific 

conductance 

(micromhos at 

25° C.)

502 

1,010 

417 

699 

677 

536 

306 

419

524 

281 

439 

105 

197

279 

115 

21 R

Silica 

(SiO,)

14 

15 

16 

18 

16 

18 

12 

16

14 

7.5 

12 

6.0 

9.5

11 

6.2 

11

Iron 

(Fe)

"

Calcium 

(Ca)

19 

24 

20 

24 

23 

21 

13 

19

24 

14 

20 

7.4 

9.1

14 

9.2 

13

Magnesium 

(Mg)

5.7 

9.8 

4.3 

4.8 

4.7 

4.4 

4.9 

3.9

4.4 

2.4 

3.5 

2.0 

3.8

3.5 

8.4 

2. fi

Sodium 

(Na)

Potassium 

(K)

68 

158 

53 

113 

103 

76 

40 

58

71 

42 

61 

18 

18

35 

8.5 

29

Bicarbonate 

(HCO,)

60 

72 

62 

58 

65 

64 

44 

48

55 

40 

53 

23 

33

41 

27 

43

Sulfate 

(S04)

9.8 

17 

4.4 

6.9 

5.4 

4.8 

7.3 

13

14 

17 

17 

22 

11

7.9 

7 

10

Chlo

(C
SAN JACINTO RIVER BASIN--Continued 

SAN JACINTO RIVER NEAR HUFFMAN, TEX. Contin

Chemical analyses, in parts per million, December 1948 to Septembe

Date of collection

Apr. 1-3, 1949 

ADF 21 30 * 

June 11, 14, 17-18,

June 12-13, 15-16, 19

Sept. 3-5, -7-10 

Sept. 21-30 

Weighted average -

Mean 

discharge 

(secondfeet)

7,510 

4,188 

1,431 

760 

4,920 

9,182 

1,230 

386 

445

235

340 

521 

314 

185 

910 

322

522 

224 

123 

193 

182 

230 

227

1,533

PH

7.0 

7.2 

7.3 

7.3 

7.3 

7.2 

7.3 

7.7 

7.7

7.6

7.1 

7.4 

7.6 

7.3

6.9 

6.9 

7.2 

7.2 

7.2 

7.5 

7.4

--

Specific 

conductance 

(micromhos at 

25" C )

126 

202 

280 

366 

433 

152 

286 

350 

382

395

418 

3Q9 

374 

456 

347 

351

307 

417 

474 

657 

383 

480 

450

214

Silica 

(SiO.)

5.5 

8.8 

13 

17 

10 

8.1 

16 

21 

19

18

17 

15 

16 

17 

14 

15

11 

18 

19 

17 

16 

16 

17

9.4

Iron

(Fe)

0.33 

.19 

.45 

.42 

.71 

1.0

--

Calcium 

(Ca)

6.2 

11 

18 

22 

17 

11 

21 

23 

23

24

18 

16 

14 

24 

16 

16

12 

19 

24 

20 

16 

18 

20

12

Magnesium 

(Mg)

2.0 

2.7 

3.1 

3.4 

3.3 

2.3 

3.6 

4.3 

4.3

7.6

4.4 

3.5 

5.5 

4.4 

3 3 

3.2

.6 

.9 

.1 

.1 

.1 

.5 

4.3

3.1

SO- f°- 

dium ** ' 

(Na, -J15 

23 

33 

43 

64 

16 

30 

37 

43

38

59 

37 

51 

61 

56 

58

41 

56 

62 

106 

52 

68 

62

26

Bicarbonate 

(HCOS)

23 

35 

54 

65 

43 

39 

67 

70 

69

71

62 

50 

58 

86 

74 

78

38 

56 

76 

79 

58 

61 

68

39

Sulfate 

(SO,)

3 

4 

10 

7 

11 

4.8 

6.7 

7.3 

6.5

5.6

6.1 

6.2 

5.8 

5.8 

3.7 

4.4

6.7 

4.9 

4.4 

5.5 

5.0 

4.8 

4.9

9.2

Chlor

(Cl)

2

3

5

7

10

24 

50 

64 

74

7

94 

6

8

9

7

7

7

9

10

16

8

11

9

4
Temperature (° F ) of water, water year October 1

Day

1 9

oo

24

ne

97

9ft

9Q

October November December January

65 

55 

50

48 

50 

56 

68 

68

59 

59 

56 

63 

67

69 

58 

55 

53 

54

54 

55 

63 

67 

58

54 

50 

52 

43 

39 

37

56

February

40 

43 

51 

56 

54

57 

56 

63 

62 

62

63 

64 

67 

72 

70

62 

60 

58 

59 

64

66 

70 

67 

69 

71

63 

63 

60

61

March

58 

59 

60 

63 

70

72 

69 

71 

69 

61

64 

65 

66 

65 

63

64 

64 

63 

61 

60

65 

70 

68 

69 

71

72 

68 

71 

72 

72 

71

66

A
SAN JACINTO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN SAN JACINTO RIVER 

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

Temperature

PH

Specific 

conductance 

(micromhos at 

25* C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Ch

ri

(C

SAN JACINTO RIVER AT MAGNOLIA GARDEN NEAR CRO

Oct. 2-5, 7-10, 1948 

Oct. 11-16, 20 

Nov. 1-6, 9, 11-12- 

Nov. 10, 1.8, 20, 

oo on

15,200 

15,600

14, 700

9.0 

7.8

7.8

1 9

147 

143

151 

9n

31

339 

347 

373

323

32

2,740 

2,850 

2 990

2,680

900

ooc

123 

119

118 

104

192

682 

705

660

91 9

4

5

4

STEWART CREEK NEAR CONROE
BRAZOS RIVER BASIN 

DOUBLE MOUNTAIN FORK BRAZOS RIVER NEAR ASPERMO

LOCATION. --At gaging station at bridge on U. S. Highway 83, 8 miles downstream from Mountain Cre

DRAINAGE AREA. 7,979 square miles, of which 6,470 square miles is probably non-contributing. 

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1949. 

- 

C hemical analyses, In parts per million, water year October 1948 t

Date of collection

Oct. 1-10, 19481/ 

Oct 17 19

Feb. 10, 1949 ------ 

Feb. 11-13, 15-20 

Apr. 21-25, 28-30 

May 1-2 

May 3-6 

May 29-31, June 1-3- 

June 4-16 ---------

June 21-23 

July 31, Aug. 1-4 

Mean 

discharge 

(secondfeet)

91.4 

332 

26.5 

11.1 

663 

27.7

1.3 

2.80 

13

0

152 

22 

37.5 

13.0 

1,341 

250 

581 

22.5

1,120 

124 

39.3

12.6

Temperature 

(°F)

69 

67 

68 

56 

57 

46

--

"

PH

"

--

7.5 

7.4 

7.7 

7.7 

7.6 

7.4

7.9 

8.0 

8.0 

7.9 

7.7

Specific 

conductance 

(micromhos at 

25° C )

2,540 

1,250 

1,620 

2,510 

1,330 

2,320

5,990 

6,720 

2,820 

6,530 

6,340 

5,080 

5,130

2,580 

4,600 

2,900 

4,770 

1,560 

1,420 

1,600 

2,660

1,110 

1,530 

2,940 

4,760 

1,540

Silica 

(Si02)

11 

9.0 

9.2 

11 

9.9 

9.7

7.0 

9.5 

7.7 

10 

13 

12 

12

12 

14 

12 

16 

15 

17 

14 

13

16 

16 

21 

28 

16

Iron 

(Fe)

Calcium 

(Ca)

363 

132 

165 

262 

98 

176

450 

532 

272 

576 

636 

660 

676

313 

324 

406 

518 

168 

120 

201 

280

107 

135 

210 

354 

86

Magnesium 

(Mg)

30 

16 

20 

40 

17 

38

75 

83 

34 

93 

92 

91 

95

39 

57 

45 

61 

25 

23 

22 

38

16 

19 

50 

73 

22

Sodium 

(Na)

Potassium 

(K)

193 

112 

160 

247 

150 

268

825 

931 

304 

856 

779 

493 

491

233 

625 

246 

369 

50 

148 

126 

264

105 

168 

358 

625 

202

Bicarbonate 

(HC03 )

101 

111 

100 

111 

123 

137

129 

128 

72 

130 

116 

124 

127

84 

104 

70 

104 

149 

148 

103 

106

121 

120 

118 

105 

102

Sulfate 

(S04)

934 

353 

465 

736 

291 

505

1,330 

1,520 

742 

1,630 

1,770 

1,830 

1,890

904 

958 

1,190 

1,060 

282 

351 

550 

767

317 

399 

693 

1,140 

347

C

\J Includes days of less than 0.05 second-feet flow.
BRAZOS RIVER BASIN

DOUBLE MOUNTAIN FORK BRAZOS RIVER NEAR ASPERMONT, TEX. C

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Aug. 5-10, 1949 ---

Sept. 11-20 --

Weighted average -

Mean 

discharge 

(secondfeet)

10.7 

38.5 

1.05 

5.55 

0 

328 

1,168 

47.5 

20.5

139

Temperature 

(°F)

"-

--

PH

7.5 

7.4 

7.6 

7.4 

7.6 

8.0 

7.7 

7.9 

7.9

"

Specific 

conductance 

(micromhos at 

25° C )

2,450 

2,030 

3,540 

2,500 

4,300 

1,460 

1,020 

1,650 

3,170

1,410

Silica 

(S102)

14 

15 

17 

12 

18 

13 

14 

18 

19

14

Iron 

(Fe)

Calcium 

(Ca)

329 

273 

380 

340 

572 

57 

81 

112 

238

138

Magnesium 

(Mg)

38 

28 

56 

42 

81 

19 

13 

19 

43

20

Sodium 

(Na)

Potassium 

(K)

193 

158 

378 

187 

387 

210 

110 

221 

439

130

Bicarbonate 

(HCO,)

84 

72 

98 

79 

103 

118 

115 

130 

124

120

Sulfate . 

(S0«)

933 

782 

1,150 

932 

1,660 

247 

254 

364 

757

380

C

I/ Includes days of less than 0.05 second-foot flow.
BRAZOS RIVER BASIN--Continued 

BRAZOS RIVER AT POSSUM KINGDOM DAM NEAR GRAFORD

LOCATION Immediately below dam on Brazos River, 2.6 miles upstream from Loving Creek, 11.3 mile

upstream from gaging station near Palo Pinto, Palo Pinto County.

DRAINAGE AREA. 22,500 square miles above dam; 22,760 square miles above gaging station, of which 

RECORDS AVAILABLE. Chemical analyses: January 1942 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,690 parts per million Mar. 1-Apr. 30; minimum, 

Total hardness; Maximum, 583 parts per million Mar. 1-31; minimum, 414 parts per million Sept. 

EXTREMES, 1942-48.--Dissolved solids: Maximum, 2,130 parts per million Feb. 2-9, 1942; minimum, 

Total hardness: Maximum, 661 parts per million Feb. 2-9, 1942; minimum, 318 parts per million D

REMARKS. Discharge records for gaging station near Palo Pinto, Tex., for water year October 1948 

No appreciable inflow between sampling point and gaging station except during periods of heavy 

samples available in district office at Austin, Tex.

Chemical analyses, in parte per million, water year October 1948 to 

Date of collection

Oct. 1-31, 1948 -----

Jan. 1-31, 1949 

Weighted average -

Mean 

discharge 

(secondfeet)

193 

196 

213 

254

292 

149 

125 

1,588

3,209 

797 

1,092 

1,130

769

PH

7.5

7.6 

7.7 

7.8 

7.6

7.4 

7.5 

7.6 

7.4

--

Specific 

conductance 

(micromhos at 

25° C )

2,520 

2,520 

2,550 

2,520

2,580 

2,850 

2,860 

2,750

2,590 

2,500 

2,350 

2,220

2,540

Silica 

(SiO,)

14 

9.2 

12

7.4

9.9 

8.8 

8.6 

9.2

11 

8.8 

9.2 

9.0

9.9

Iron

(Fe)

Calcium 

(Ca)

172 

172 

172 

175

179 

186 

184 

182

164 

148 

144 

133

161

Magnesium 

(Mg)

27 

31 

29 

26

26 

29 

29 

29

28 

27 

21 

20

26

Sodium 

(Na)

Potassium 

(K)

325 

319 

318 

329

339 

376 

377 

358

339 

339 

309 

295

333

Bicarbonate 

(HCO,)

126 

114 

104 

116

112 

120 

119 

118

117 

114 

113 

108

115

Salfate 

(804)

385 

407 

404 

409

426 

408 

417 

420

390 

355 

318 

298

375

Chlor

(Cl

5

5

5

5

5

6

6

5

5

5

4

4

5
BRAZOS RIVER BASIN Continued 

BRAZOS RIVER NEAR WHITNEY, TEX.

LOCATION. At old gaging station at bridge on State Highway 22, 1.8 miles upstream from Towash Cree

DRAINAGE AREA. 26,090 square miles, of which 9,240 square miles is probably noncontributing. 

RECORDS AVAILABLE.--Chemical analyses: October 1947 to May 1948, October 1948 to September 1949.

Water temperatures: October 1947 to May 1948, October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,560 parts per million Oct. 1-10; minimum, 216 par

Total hardness: Maximum, 542 parts per million Oct. 1-10: minimum, 129 parts per million Mar. 26

Vater temperatures: Maximum, 87° F July 12; minimum, 33 F Jan. 30-31. 

EXTREMES, 1947-49.---Dissolved solids: Maximum, 1,560 parts per million Oct. 1-10, 1948; minimum, 2

Total hardness: Maximum, 542 parts per million Oct. 1-10, 1948: minimum, 124 parts per million D

Vater temperatures: Maximum, 87° F July 12, 1949; minimum, 32 F Jan. 28-29, 1948. 

REMARKS. Discharge records reported are for gaging station located 1 mile downstream from Coon Cre

construction), and 7.5 miles south of Whitney, Tex. Records of discharge for water year'October 

Records of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Jan. 21-24, 30-31-

Mar. 22-25, 31 

Ma- 9.R-3n _______

Mean 

discharge 

(secondfeet)

249 

259 

221 

204 

262 

239

242 

274 

293 

226 

 243 

348 

585

866 

412 

930 

2,675 

803 

448 

404 

1,692

3 At\K

pH

7.6

7.7 

7.7 

7.7 

7.7 

8.0 

8.4 

8.3 

8.0 

a n

Specific 

conductance 

(micromhos at 

25" C.)

2,650 

2,540 

2,470 

2,450 

2,370 

2,460

2,460 

2,200 

2,350 

2,320 

2,120 

1,790 

1,280

2,040 

1,930 

2,040 

444 

547 

864 

1,240 

781

37B

Silica 

(SiO,)

13 

14 

7.2 

5.8 

5.1 

7.8

4.8 

3* 8 

3.2 

3.6 

4.3 

3.3 

5.1

8.1 

8.1 

4.8 

6.8 

13 

12 

6.0 

6.6 

R n

Iron 

(Fe)

0.05

Calcium 

(Ca)

161 

153 

151 

156 

156 

160

164 

143 

156 

157 

143 

124 

90

138 

131 

137 

43 

58 

82 

96 

65

49

Magnesium 

(Mg)

34 

35 

34 

31 

31 

29

31 

28 

30 

26 

27 

22 

17

25 

21 

26 

7.0 

7.8 

11 

17 

10 

R 0

Sodium 

(Na)

3 

3 

3 

3 

3 

316

3 

2 

2 

3 

2 

2 

1

2. 

2 

2

1

Potassium 

(K)

15 

21 

)6 

23 

)6 

7.6

14 

30 

35 

)8 

70 

25 

57

19 

39 

53 

35 

il 

31 

40 

75

IK

Bicarbonate 

(HCO,)

114 

109 

115 

118 

124 

132

130 

131 

120 

136 

139 

132 

135

120 

130 

134 

109 

143 

177 

162 

121 

us

Sulfate 

(S04)

391 

374 

358 

374 

360 

379

381 

333 

363 

363 

327 

272 

184

309 

288 

307 

47 

58 

105 

168 

94

31

Chlori

(Cl)

56

52

50

52

50

50

50

44

48

48

42

35

23

40

37

40

5

6

12

21

11

S
Apr. 1-10 

Apr. 11-20 

Apr. 21-22,' 27-29 

Apr. 23-26, 30 

May 1-4, 7-10 

May 5-6 ----- - 

May 11-16, 27 

May 17-22 

May 23-26, 28-31

June 1-10 

June 11-14, 17-24 

June 15-16, 25,

July 1 - 

July 2-10 - - 

July 11-20 

July 21-31 

Aug. 1-10 - 

Aug. 11-20 

Aug. 21-31 

Sept. 1-10 

Sept. 11-20------

Sept. 21-30 -

Weighted average

633

526

1,680

1,417

1,117

724

2,098

24,760

6,336

3,941

3,668

5,029

1,511

1,036

798

681

900

1,155

1,404

985

971

872

1,110

479

736

615

1,150

886

360

1,200

2,230

2,280

1,160

2,220

2,260

2,390

2,420

2,360

2,310

2,220

2,120

1,950

9.8

7.2

11

9.4

8.6

11

11

10

12

8.6

13

13

12

11

9.4

10

12

11

8.2

9.8

9.5

7.9

11

117

35

67

58

126

93

21

135

274

282

185

272

288

312

317

291

286

291

281

259

161

156

142

170

144

153

127

134

139

131

118

115

125

122

117

121

116

117

114

116

110

132

42

75

57

140

95

22

147

333

341

147

306

317

337

333

320

316

305

298

267

2

4

4

2

4

4

5

5

4

4

4

4

4

1,566 1,300 10 
BRAZOS RIVER BASIN Continue

BRAZOS RIVER NEAR WHITNEY, TEX. C

Temperature (° F ) of water, water year October 1

Day

12

22

97

9fi

29

30

October

59

59

' 64

November

59

54

AQ

57

dfl

AQ

AQ

December

42

54

January

on

en

OQ

og

42

og

qn

on

dfl

54

on

QO

February

35

39

AQ

AQ

54

57

March

CO

eg

54

53

go

A
BRAZOS RIVER BASIN Continued 

BRAZOS RIVER AT RICHMOND, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 59 in Richmond, Fort Bend County, about 

DRAINAGE AREA. 44,050 square miles, of which 9,240 square miles is probably noncontributing.

RECORDS AVAILABLE.--Chemical analyses: October 1945 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,080 parts per million Oct. 11-20; minimum, 184 

Total hardness: Maximum, 434 parts per million Oct. 11-20; minimum, 109 parts per million Apr

EXTREMES, 1945-49. Dissolved solids: Maximum, 1,240 parts per million Sept. 1-10, 1948; minimu

Total hardness: Maximum, 446 parts per million Sept. 1-10, 1948; minimum, 97 parts per millio

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 -----

Feb. 15-19, 24-25 

Feb. 20-23, 26 

Feb. 11-14, 27-28 

Mar 2R.ai ____ __

Mean, 

discharge 

(secondfeet)

692 

821 

613 

543 

592 

601

568 

561 

675 

640 

654 

2,032 

2,579

3,309 

1,871 

3,056 

10,080 

10,470 

2,329 

6,390 

is <nn

Temperature 

CF)

PH

7.8

7.6 

7.6

7.9 

8.1 

R n

Specific 

conductance 

(micromhos at 

25" C)

1,420 

1,860 

1,780 

1,590 

1,320 

1,450

1,530 

1,520 

1,520 

1,340 

1,370 

1,080 

520

513 

1,070 

1,750 

572 

355 

587 

657

3H1

Silica 

(SiO,)

14 

14 

13 

13 

13 

14

10 

11 

9.5 

18 

19 

8.2 

8.6

10 

9.2 

9.9 

7.4 

9.2 

13 

12 

m

Iron 

(Fe)

0.00

Calcium 

(Ca)

104 

126 

123 

110 

98 

103

108 

109 

108 

101 

98 

79 

42

43 

77 

100 

45 

34 

55 

63

41

Magnesium 

(Mg)

24 

29 

29 

27 

24 

25

27 

26 

26 

22 

23 

16 

7.3

6J7 

15 

18 

6.9 

6.0 

8.4 

9.5

R 4

<*>- I*' 

dium , s~

(Na) --

156 

220 

202 

183 

140 

162 7.2

173 

166 

174 

148 

155 

125 

51

50 

118 

235 

58 

32 

51 

57 

S1

Bicarbonate 

(HCO,)

225 

220 

232 

239 

248 

251

243 

230 

228 

226 

232 

172 

117

103 

144 

157 

117 

106 

162 

180 

1SS

Sulfate 

<30«)

160 

235 

222 

188 

144 

168

173 

174 

191 

159 

162 

131 

51

59 

127 

185 

49 

35 

47 

55 

31

C

r

(
BRAZOS RIVER BASIN Continued

BRAZOS RIVER AT RICHMOND, TEX.--Continue

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Apr. 1-10, 1949 -----

Apr. 21-22, 24, 28 

Apr. 23, 25-27, 29-30

July 21-25, 30-31 

Weighted average 

Mean 

discharge 

(secondfeet)

7,086 

2,547 

23, 120 

33,050 

18,700 

4,566 

17,250

9,020 

6,170 

5,860 

11,000 

6,314 

2,540 

1,605 

1,939

1,292 

900 

853 

938 

1,494 

1,240

4,645

Temperature 

(°F)

PH

7.6 

7.7 

7.6

7.9 

7.9 

7.8

7.7 

8.0 

7.6 

7.6

7.7 

7.7 

7.7 

7.5 

7.5 

7.6

--

Specific 

conductance 

(micromhos at 

25° C.)

431 

644 

456 

289 

376 

536 

383

740 

1,230 

1,790 

1,420 

928 

1,280 

943 

1,480

1,470 

1,530 

1,760 

1,860 

1,860 

1, 570

703

Silica 

(SiO.)

11 

12 

11 

11 

14 

14 

11

14 

14 

14 

13 

18 

15 

13 

12

12 

12 

12 

12 

8.6 

11

12

Iron 

(Fe)

Calcium 

(Ca)

43 

54 

42 

34 

45 

57 

42

67 

95 

128 

104 

74 

94 

74 

101

94 

97 

106 

104 

114 

100

59

Magnesium 

(Mg)

6.2 

11 

7.4 

5.8 

6.3 

8.8 

6.7

11 

17 

22 

18 

12 

17 

14 

20

20 

22 

24 

22 

20 

18

10

*>- E°" 

dium *fs- 

(Na) sium 

(Ma) (K)

35 

56 

43 

21 

22 

37 

25

66 

130 

214 

157 

100 

138 

86 

169

173 

181 

218 

248 

242 

198

70

Bicarbonate 

(HCO,)

123 

146 

128 

120 

144 

169 

136

156 

160 

157 

141 

156 

156 

145 

148

153 

171 

162 

149 

137 

156

141

Sulfate

(scg

35 

54 

38 

24 

28 

42 

25

79 

154 

258 

191 

104 

155 

101 

187

181 

183 

224 

237 

245 

198

76

C

r

(
BRAZOS RIVER BAdIN Continued 

SALT FORK BRAZOS RIVER NEAR ASPERMONT, TE

LOCATION. At gaging station at bridge on U. S. Highway 83, 5j miles downstream from Dove Creek a

DRAINAGE AREA.--4,834 square miles, of which 2,770 square miles is probably noncontributing. 

RECORDS AVAILABLE.--Chemical analyses: October 1948 to September 1949.

Water temperatures: October 1948 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 78,500 parts per million Mar. 21, 24-28; minimum, 

Total hardness: Maximum, 5,330 parts per million Mar. 21, 24-28; minimum, 434 parts per millio

Water temperatures: Maximum, 90 F June 17; minimum, freezing point on several days during Janu

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 10-11, 13-14 

Nov. 11-14, 16-18 

Jan. 1-10, 1949 

Jan. 11-12, 15-20 

Mar. 21, 24-28 

Mar. 22-23, 29-31 

Mean 

discharge 

(secondfeet)

0.10 

2.30 

55.0 

444 

5.30 

24.5 

3.73

136 

370 

9.23 

5.76 

3.30 

1.92

.85 

.74 

1.55 

1.23 

11.8 

16.5 

15.5

8.70 

5.06 

5.63 

4.05 

1.88 

8.50 

13.1

Temperature 

(°F)

pH

7.7 

7.6 

7.6

Specific 

conductance 

(micromhos at 

25* C)

63, 600 

17, 600 

8,420 

12,700 

30,900 

19,200 

50, 500

6,680 

13,800 

22,200 

30,600 

47, 500 

46, 000

51,900 

52, 500 

54, 500 

53, 700 

53, 800 

92, 100 

62,200

45, 100 

52,300 

59, 300 

61,600 

60,400 

90, 000 

31,600

Silica 

(SiO.,)

13 

13 

9.5 

8.1 

8.6 

14 

15

11 

11 

12 

11 

11 

15

12 

12 

8.2 

11 

12 

12 

10

13 

9.2 

10 

8.8 

11 

14 

9.8

Iron

(Fe)

Calcium 

(Ca)

1,420 

369 

372 

422 

858 

581 

1,240

298 

489 

737 

932 

1,260 

1,170

,290 

,290 

,280 

,280 

,010 

,290 

904

929 

1,010 

1,160 

1,240 

1,300 

1,330 

988

Magnesium 

(Mg)

402 

82 

41 

63 

187 

90 

308

48 

83 

152 

206 

301 

318

350 

371 

379 

379 

311 

469 

294

267 

300 

346 

384 

384 

490 

194

Sodium 

(Na)

Potassium 

(K)

15,900 

3,450 

1,520 

2,380 

6,640 

3,810 

13,300

1,110 

2,930 

4,110 

6,610 

11,400 

10, 800

12,700 

12, 600 

13,300 

12, 900 

13,400 

27, 500 

15,800

10,200 

11, 700 

14,800 

14, 500 

15,100 

28, 400 

6,850

Bicarbonate 

(HCO,)

155 

135 

62 

82 

122 

78 

137

90 

109 

160 

154 

159 

161

163 

174 

139 

150 

144 

109 

137

144 

132 

137 

124 

126 

105 

97

Sulfate 

(SO,)

3,570 

1,430 

951 

1,040 

2,070 

1,360 

2,790

779 

1,210 

1,780 

2,240 

3,030 

2,890

3,170 

3,220 

3,070 

2,960 

2,310 

2,660 

2,410

2,220 

2,520 

2,610 

2,760 

2,980 

2,850 

2,460

C

r

(

2

1

2

1

1

1

2

2

2

2

2

4

2

1

1

2

2

2

4

1
BRAZOS RIVER BASIN Continued 

SALT FORK BRAZOS RIVER NEAR ASPERMONT, TEX. Con

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Apr. 1-10, 1949 

Apr. 11-18, 20, 29- 

Apr. 19, 21, 24-27,

Apr. 22-23, 28 

MAY 7--

May 14-15, 29-31 

May 11-13, 16,

July 10-13, 19 '- 

July 14-15, 30,

July 16, 31-Aug. 1 - 

July 17-18, 26-29 

Mean 

discharge 

(secondfeet)

2.33 

7.94

40.4 

47.7

16.6 

1,470 

250 

57.8

499 

2,970 

380

64.4 

989 

1,902 

479 

83.7 

35.4 

11.2

29.3 

215

194 

109 

94.7 

2.30

Temperature

(°F)

PH

7.7

7.4 

8.0

8.0

7.4 

7.7

7.9 

7.9 

7.4 

7.2 

7.5 

7.9 

7.9

7.1

Specific 

conductance 

(micromhos at 

25° C)

57,900 

64,300

29,300 

15,700

47,200 

12,900 

3,530 

12,000

5,580 

2,640 

3,890

16,400 

4,740 

2,640 

4,490 

8,990 

17,300 

27,100

47,600 

12,600

4,370 

2,790 

7,430 

43,600

Silica 

(SiO,)

7.2 

13

13 

14

8.0 

19 

14 

18

19 

16 

16

17 

18 

16 

16* 

17 

20 

19

18 

22

19 

17 

17 

23

Iron 

(Fe)

Calcium 

(Ca)

1,280 

1,310

685 

430

928 

387 

128 

386

246 

210 

266

535 

271 

210 

282 

344 

530 

786

1,230 

643

176 

128 

324 

1,060

Magnesium 

(Mg)

357 

405

192 

97

244 

83 

28 

96

44 

23 

34

112 

42 

23 

36 

72 

133 

192

300 

94

37 

34 

66 

253

Sodium 

(Na)

Potassium 

(K)

14,500 

16,400

6,310 

3,030

11,100 

2,220 

540 

2,180

898 

362 

542

3,210 

716 

362 

653 

1,580 

3,450 

5,460

11,100 

2,160

716 

433 

1,240 

9,900

Bicarbonate 

(HCO,)

124 

136

137 

119

83 

158 

130 

143

123 

96 

99

121 

133 

96 

104 

126 

115 

114

123 

96

158 

138 

136 

139

Sulfate 

(S04)

2,960 

3,190

1,780 

1,100

2,250 

1,110 

339 

979

616 

556 

691

1,350 

699 

556 

716 

884 

1,410 

1,980

3,030 

1,640

461 

336 

864 

2,480

Ch

rid

(C

23

26

10

4,

17

3,

3,

1

5

1

1

2

5

8

17

3

1

1

16
Aug. 3, 7-8, 12 

Aug. 4-6, 9, 16-19 -

Sept. 12-13, 17-20 

Weighted average -

104 

20.5 

23.2 

131 

1.68

5.05 

123 

1,921 

38.3 

. 13.4

157

7.3 

7.2 

7.2 

7.2 

7.4

7.4 

7.2 

7.3 

7.6 

7.5

--

6,750 

12,900 

42,900 

5,060 

52,200

56,000 

6,920 

3,510 

12,600 

19,200

6,380

13 

12 

18 

13 

16

15 

11 

12 

18 

20

15

428 

427 

924 

388 

1,210

1,290 

354 

198 

419 

616

274

57 

92 

220 

52 

348

388 

53 

30 

92 

142

46

1,030 

2,360 

9,890 

672 

12,100

13,300 

1,080 

502 

2,500 

4,090

1,160

103 

120 

91 

80 

127

139 

101 

102 

124 

110

112

1,040 

1,020 

1,860 

986 

3,090

3,260 

950 

556 

1,120 

1,610

709
BRAZOS RIVER BASIN Contin

'SALT FORK BRAZOS RIVER NEAR ASPERMON

Temperature (° F ) of water, water year October 

Day

1 i 

2

12

13

19

21

22

90

24

no

9ft

29

October

59

November

55

42

°"53

no

4ft

December

45

34

52

48

en

January

40

31

31

32

on

31

35

00

February

31

33

en

AQ

QO

45

no

Eft

48

March

50

42

QC

59

50
BRAZOS RIVER BASIN--Continued 

CLEAR FORK BRAZOS RIVER AT NUGENT, TEX.

LOCATION. At gaging station at county highway bridge in Nugent, Jones County, 4 miles upstream 

DRAINAGE AREA. 2,220 square miles.

RECORDS AVAILABLE. Chemical analyses: August 1948 to September 1949

Water temperatures: August 1948 to September 1949. 

EXTREMES, August 1948 to September 1949. Dissolved solids: Maximum, 3,910 parts per million Ma

Total hardness: Maximum, 1,490 parts per million Mar. 21-31- minimum, 89 parts per million Se

Water temperatures: Maximum, 92 F June 2, 24; minimum, 32 F Jan. 29.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Oct. 1-8, 1948 1/ 

Oct 9 14

Oct 21 25

Dec 1 1 20

Dec 21 31

Jan. 1-20, 30-31,

1 QAQ

jan 2 1 29

Mar 21-31 - __ ...

Mean 

discharge 

(secondfeet)

0.10 

918 

9.05 

132 

16.6 

3.24 

2.60 

2.81

V 2.79 

1.67 

2.06

3.63 

21.4

4.78 

8.89 

7.24 

3.73 

2.65

A 15

Temperature 

(°F)

pH

7.7 

7.8 

8.0 

8.0 

7.9 

7 R

Specific 

conductance 

(micromhos at 

25° C)

1,630 

351 

503 

392 

639 

806 

1,210 

1,710

2,270 

2,600 

3,040

3,220 

3,950

2,250 

2,850 

2,600 

3,490 

5,090 

5 RSn

Silica 

(Si02)

19 

9.8 

11 

7.8 

7.8 

10 

10 

8.8

7.5 

5.5 

4.3

6.0 

6.4

9.0 

8.1 

8.8 

6.5 

5.0 

d i

Iron

(Fe)

Calcium 

(Ca)

122 

45 

60 

56 

66 

66 

114 

163

206 

236 

285

283 

336

202 

218 

228 

279 

342

37(1

Magnesium 

(Mg)

61 

&2 

12

ao

15 

21 

36 

54

72 

86 

106

109 

116

76 

74 

81 

97 

125

19R

di£m tas' 

(Na\ sium 

(Na) (R)

126 

13 

25 

11 

43 

69 

91 

138

205 

250 

292

330 

446

199 

322 

246 

407 

687

774

Bicarbonate 

(HCOS )

256 

112 

124 

90 

104 

145 

186 

233

251 

278 

289

239 

252

181 

197 

230 

180 

166

Sulfate 

(S04)

247 

61 

101 

101 

141 

133 

258 

417

604 

721 

946

1,030 

1,220

675 

734 

739 

1,060 

1,330 

i Afin

C

\J Includes days of less than 0. 05 second-foot flow.
BRAZOS RIVER BASIN Continued

CLEAR FORK BRAZOS RIVER AT NUGENT, TEX.--Cont

Chemical analyses, In parts per million, water year October 1948 to Sept

Date of collection

Apr. 1-10, 1949 

Anr 93 9A

|L|f a v 1 2

May 17-19, 28-31 

Mav 20

May 21 27

June 1-7, 9, 16 

JuneS, 10-15, 17-20

Sent 1 3

Sept. 14, 17-20 

Sept. 21, 25-30 

Weighted average --

Mean 

discharge 

(secondfeet)

1.80 

4.14 

121 

198 

81.8 

200 

101 

171 

884 

123 

71.4 

210 

193

60.8 

160 

4.66 

1.18 

2.80 

78 

2.23 

11

5.70 

5.24 

2.35 

167 

6.30 

232 

860 

5.24 

8.87

58.1

Temture 

(°F)

PH

7.5 

7.6 

8.0 

7.5 

7.5 

7.9 

8.0 

7.7 

7.7 

7.6 

8.0 

8.2 

8.0

8.0 

8.1 

8.0 

7.9 

7.9 

7.8 

8.0 

7.9

8.0 

8.0 

7.8 

7.7 

7.1 

7.4 

7.4 

7.4 

7.4

-

Specific 

conductance 

(micromhos at 

25° C)

5,320 

4,320 

716 

3,240 

447 

1,370 

1,710 

699 

301 

497 

952 

2,380 

472

1,550 

680 

770 

1,210 

1,420 

473 

711 

974

1,080 

1,330 

2,880 

657 

1,010 

444 

264 

495 

371

659

Silica 

(Si02)

6.1 

6.1 

14 

15 

11 

14 

18 

11 

8.2 

11 

11 

19 

11

10 

13 

12 

16 

16 

10 

11 

14

14 

5.8 

7.0 

11 

13 

11 

8.8 

13 

13

10

Iron 

(Fe)

Calcium 

(Ca)

346 

286 

56 

254 

46 

123 

130 

58 

31 

54 

84 

190 

54

130 

66 

63 

84 

91 

40 

52 

66

64 

96 

226 

80 

124 

45 

34 

48 

38

65

Magnesium 

(Mg)

138 

121 

16 

102 

9.1 

32 

29 

15 

7.2 

11 

20 

48 

10

32 

14 

18 

40 

44 

12 

18 

29

36 

43 

99 

11 

19 

8.2 

1.1 

11 

14

15

Sodium

(Na)

Potassium 

(K)

685 

545 

62 

366 

33 

126 

187 

61 

20 

28 

87 

274 

28

153 

51 

67 

113 

147 

37 

64 

91

. 107 

128 

299 

41 

69 

33 

20 

37 

17

54

Bicarbonate 

(HCOS )

141 

142 

122 

105 

121 

147 

149 

132 

100 

139 

145 

214 

124

132 

126 

136 

176 

177 

116 

138 

194

184 

147 

161 

92 

140 

106 

104 

139 

130

120

Sulfate 

(S04)

1,380 

1,160 

126 

1,110 

72 

369 

354 

121 

34 

87 

207 

566 

92

384 

136 

146 

237 

266 

71 

96 

119

156 

385 

938 

194 

316 

77 

32 

68 

43...

145

C

r

(

If Includes days of less than 0.05 second-foot flow.
Temperature (° F ) of water, water year October 

Day

1ft

21

9ft

29

verage

October November

56

56

56

54

56

64

December

53

58

54

54

53

40

January

--4

07

39

44

35

OO

OQ

February

50

54

Cfi

March

59

59

64

R7
BRAZOS RIVER BASIN--Continued

MISCELLANEOUS ANALYSES OF STREAMS IN BRAZOS RIVER BA

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chlo

(C

DOUBLE MOUNTAIN FORK BRAZOS RIVER NEAR R

Sept. 21, 1949 5| 7.9 | 2,210| 17 122 26 310 129 420 

BRAZOS RIVER NEAR BENJAMIN

July 29, 1949 30 | 17, 100 5,2

BRAZOS RIVER AT WACO

June 7, 1949 3, 560 | 8. 0| 2, 200 j 7.8 127 28 274 67 325 

BRAZOS RIVER NEAR MARLIN

Oct. 6, 1948 

Feb. 4, 1949 

Aug. 30 

225

878

471

--

8 1

8 

A

8.1

2,490

2 

9 on

1,490

AnA

2,170

8.0

5

0

5.5

14

159

108 

50

130

35

18

0 O

27

313

177 

' 29

1 TH

274

138

146

lift

121

372

214 

42

293

BRAZOS RIVER NEAR BRYAN

Oct. 5, 1948 

Mar. 31, 1949 

Aug. 29 

526

4,900

975

--

8

9

8.2

2,500

513

A*)*)

2,050

9.2

13

1 ft

13

163

52

124

35

9.6

9

0

26

309

42

258

142

154

133

364

45

2764
SALT FORK BRAZOS RIVER NEAR JAYTON

Sept. 21, 1949 8,438 919 2,2

SALT FORK BRAZOS RIVER AT COUNTY BRIDGE NEAR RAILWAY CR

Sept. 20, 1949 | 1 10, 300 1 1 649 3,0

SALT FORK BRAZOS RIVER AT HIGHWAY 280 BRIDGE NEA

Sept. 20, 1949 |

Oct. 1, 1948 |

Sept. 1-10, 1949 

S»nt 21. SO - ___ .

1

9, 780 1 I 1 627 2,8

FORT PHANTOM HILL RESERVOIR NEAR NUGEN

7.9J 652 1 4.7

8.0 

8.2 

X 1

798 

756 

Ran

oo 

*)*) 22

12 

24

 >A

73 

67

RH

21 

20 

71

63 | 14 211 52 

LEON RIVER NEAR TEMPLE

59 

58

KH

257 

237

94 K

52 

49

5R1

LAMPASAS RIVER NEAR CAMP HOOD

ay 25, 
COLORADO RIVER BASIN 

COLORADO RIVER AT COLORADO CITY, TEX.

LOCATION. At gaging station 3,517 feet upstream from bridge on U. S. Highway 80, 4,100 feet ups

upstream from Lone Wolf Creek.

DRAINAGE AREA. 4,082 square miles, of which 2,590 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: Hay 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 13,800 parts per million Apr. 11-18; minimum, 28

Total hardnees: Maximum, 1,990 parts per million Apr. 11-18; minimum, 65 parts per million Se

EXTREMES, 1946-49.--Dissolved solids: Maximum, 27,800 parts per million Aug. 9-12, 1946; minimu

Total hardness: Maximum, 4,500 parts per million Aug. 9-12, 1946; minimum, 65 parts per milli

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-9, 1948 

Jan. 1-10, 1949 

.Tan. 21-31 

Mean 

discharge 

(secondfeet)

1.56 

982 

1,590 

1,420 

570 

132 

53.0 

26.0 

11.6 

14.0 

7.37 

3.63

55.8 

67.8 

91.0 

3.25 

2.87 

1.71

1/76 

2.41 

2.21 

7.25 

7.93

Temperature 

°F)

PH

--

Specific 

conductance 

(micromhos at 

25° C)

10,800 

5,450 

1,570 

779 

464 

713 

1,210 

1,710 

2,940 

1,300 

3,740 

5,660

7,180 

2,020 

874 

3,510 

6,110 

7,910

10,300 

11,900 

13,200 

13,800 

12,800

n.4nn

Silica 

(SiO.)

9.0 

12 

14 

8.6 

11 

9.5 

8.8 

9.5 

8.8 

7.0 

7.7 

7.5

7.5 

11 

12 

6.6 

5.5 

7.2

8.1 

10 

3.2 

4.0 

7.5 

4.8

Iron

(Fe)

Calcium 

(Ca)

242 

140 

59 

36 

23 

26 

36 

47 

74 

54 

90 

128

170 

55 

32 

108 

136 

172

226 

260 

287 

307 

295 

276

Magnesium 

(Mg)

64 

39 

15 

9.4 

3.4 

6.3 

11 

16 

24 

20 

33 

43

57 

18 

7.8 

30 

48 

65

93 

95 

113 

117 

112 

110

(Na)

PotasS(K)m

2,050 

966 

219 

140 

70 

108 

187 

270 

491 

172 

627 

1,010

1,310 

319 

130 

588 

1,110 

1,440

1,940 

2,090 

2,510 

2,670 

2,450 

2.110

Bicarbonate 

(HCOS )

122 

136 

124 

126 

116 

114 

98 

104 

115 

106 

124 

129

166 

117 

109 

241 

132 

141

164 

165 

142 

146 

152 

164

Sulfate 

(SOJ

622 

309 

73 

59 

39 

50 

75 

101 

167 

113 

208 

319

410 

127 

54 

197 

366 

479

649 

775 

812 

877 

818 

761

Ch

ri

(C

3
Feb. 1-10 - 

Feb. 11-19- 

Feb. 20-28- 

Mar. 1-10 - 

Mar. 11-20 

Mar. 21-31

Apr. 1-10 

Apr. 11-18 I/ 

Apr. 19 

Apr. 19, 20-22, 28,

30 

Apr. 23-24, 28-29 

Apr. 25-28 

May 1-2 

May 3-7 - 

May 8-10, 16 

May 11-15, 17-20 

May 21-27 

May 28-31 

5.21

2.03

4.44

2.85

1.53

.93

.76 

.25

614

179

38.6

41.0

129

462

29.0

56.3

717

7.6

7.5 

7.5 

7.4

8.0 

7.4

7.4

7.5 

7.3 

7.6 

7.8 

7.8 

8.0

12,300

14,600

15,000

14,800

17,500

20,700

21,100

21,500

4,460

831

1,960

3,800

1,560

3,640

686

2,850

5,960

500

5.5

3.7

2.5

2.8

3.1

2.6

4.3

8.4

9.5

10

9.4

8.4

12

9.5

15

9.5

14

10

293

325

323

329

393

466

447

477

118

36

59-

96

46

94

33

76

146

24

106

125

128

137

165

195

178

195

39

8.1

16

33

13

32

5.4

26

50

3.2

2,340

2,860

2,920

2,910

3,460

4,230

4,380

4,450

748

117

310

651

244

692

102

455

1,060

74

166

154

145

148

189

130

120

121

102

110

100

110

111

143

100

124

142

114

830

940

975

1,010

1,200

1,420

1,440

1,500

321

69

121

238

95

407

56

199

385

42

I/ Includes days of less than 0. 05 second-foot flow.
COLORADO RIVER BASIN Continued 

COLORADO RIVER AT COLORADO CITY, TEX. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

June 1-8, 14-17,

Aug. 12, 16, 18, 20- 

Aug. 13-15, 17, 19 

Sent 12 14

Sent 25

Weighted averageMean 

discharge 

(secondfeet)

108 

545 

6.43 

.91

1.49 

62.0 

220 

199 

36.5 

3.23

.54 

63.0 

217 

184 

64.5 

15.0 

7.60 

3.06

63.6

Temperature 

(°F)

PH

8.0 

8.0 

8.0 

8.0

7.6 

7.8 

7.5 

7.7 

7.6 

7.6

7.5 

8.0 

7.7 

7.7 

7.7 

7.6 

7.7 

7.3

Specific 

conductance 

(micromhos at 

25' C)

1,520 

594 

3,240 

5,590

8,370 

7,640 

1,510 

779 

2,400 

5,240

7,830 

10,700 

1,420 

544 

835 

2,330 

3,520 

5,630

1,670

Silica

(Sio,)

14 

14 

14 

15

8.8 

7.5 

12 

19 

14 

15

14 

8.6 

9.4 

9.9 

29 

17 

16 

12

12

Iron 

(Fe)

Calcium 

(Ca)

47 

32 

86 

127

188 

150 

47 

32 

70 

121

194 

250 

45 

18 

30 

54 

78 

115

52

Magnesium 

(Mg)

11 

5.8 

25 

50

61 

47 

12 

6.4 

15 

20

59 

81 

12 

4.9 

7.2 

15 

24 

39

14

SO- P°- 

dium tas-

(Na> sium 

(Na) (K)

245

76 

546 

987

1,540 

1,400 

237 

115 

394 

963

1,390 

2,020 

219 

86 

121 

380 

628 

1,303

279

Bicarbonate 

(HCO,)

124 

119 

134 

145

90 

90 

113 

111 

122 

132

116 

129 

133 

107 

122 

112 

123 

119

120

Sulfate 

(S04)

100 

32 

220 

361

504 

372 

93 

58 

126 

270

416 

599 

94 

44 

73 

135 

187 

298

114

Ch

ri

(C

1

2

2

1

2

3

1

I/Includes days of less than 0.05 second-foot flow.
COLORADO RIVER BASIN Continued 

COLORADO RIVER AT ROBERT LEE, TEX.

LOCATION. At gaging station at bridge on State Highway 208 in Robert Lee, Coke County, half a 

DRAINAGE AREA. 15,770 square miles, of which 11,600 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949.

Sediment records: January to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 3,030 parts per million Nov. 7-10; minimum, 186 

Total hardness: Maximum, 806 parts per million Feb. 1-10; minimum, 96 parts per million June 

Water temperatures: Maximum, 94° F Aug. 13; minimum, freezing point Jan. 29.

Sediment loads: Maximum, 387,OOu tons per day May 8; minimum, '0 tons per day Aug. 5-9. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 3,030 parts per million Nov. 7-10, 1948; minimum

Total hardness: Maximum, 806 parts per million Feb. 1-10, 1949; minimum, 96 parts per million 

Water temperatures: Maximum, 94° F Aug. 13, 1949; minimum, freezing point Jan. 28, 1948, Jan

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, In parts per million, water year October 1948 

Date of collection

Oct. 1-10, 11, 1948--

Jan. 1-10, 194B 

Feb. 11-13, 14, 19 

Uar. 21 -31 ..

Mean 

discharge 

(secondfeet)

69.4 

259 

21.0 

59.3 

58.5 

15.8 

5.04

2.80 

2.92 

2.82 

2.69 

9.93 

18.6

12.4 

16.8 

7.36 

34.9 

19.0 

10.7 

5.67 

4 17

Temperature 

(°F)

PH

8.0 

7.8 

7.9 

7.B

Specific 

conductance 

(micromhos at 

25" C )

1,070 

803 

1,260 

1,910 

5,310 

2,310 

2,000

2,150 

2,240 

2,390 

2,570 

2,720 

3,970

3,960 

3,650 

1,470 

4,730 

4,540 

2,790 

3,480 

3.880

Silica 

(SiO,)

16 

10 

11 

8.8 

8.0 

6.5 

6.0

8.2 

6.0 

5.5 

5.5 

6.2 

5.5

5.8 

6.1 

5.8 

5.5 

5.0 

6.1 

6.2 

4.1

Iron 

(Fe)

Calcium 

(Ca)

64 

35 

63 

97 

148 

78 

90

114 

126 

142 

150 

160 

202

229 

191 

82 

203 

189 

155 

205 

205

Magnesium 

(Mg)

16 

8.5 

16 

23 

45 

22 

26

28 

29 

33 

37 

38 

51

57 

52 

19 

57 

50 

32 

43 

49

Sodium 

(Na)

Potassium 

(K)

129 

117 

172 

262 

925 

358 

289

304 

310 

326 

345 

370 

583

661 

521 

197 

740 

706 

381 

485 

561

Bicarbonate 

(HCO,)

122 

113 

128 

147 

146 

136 

152

169 

172 

166 

153 

160 

147

140 

125 

82 

121 

99 

93< 

101 

107

Sulfate 

(SO.)

138 

81 

150 

237 

372 

216 

240

285 

314 

359 

398 

414 

561

649 

540 

210 

575 

541 

423 

557 

565

C
COLORADO RIVER BASIN Continued 

COLORADO RIVER AT ROBERT LEE, TEX.--Contin

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Apr. 1-10, 1949 

Apr. 19, 20, 22-30 

May 21-27, 29, 30-31

June 25-SO 

Mean 

discharge 

(secondfeet)

2.08 

3.20 

1,232 

1,035 

336 

2,176 

473 

2,660

205 

4,293 

8,340 

7,968 

5,467 

2,930 

2,930 

2,930 

1,760 

2,150 

443 

118 

80.3 

25.5

Temperature 

(°F)

PH

8.0 

8.0 

8.0 

7.9 

7.5 

8.0 

7.8 

8.2

8.1 

8.2 

8.2 

8. 3 

8.3 

8.2 

8.1 

8.2 

8.2 

8.0 

8.3 

8.2 

8.2 

R. 1

Specific 

conductance 

(micromhos at 

25° C)

3,730 

3,630 

2,640 

724 

1,090 

511 

866 

1,660

881 

432 

564 

359 

297 

388 

1,010 

1,640 

671 

384 

449 

981 

1,480 

1 SSn

Silica 

(Si02)

12 

9.8 

17 

14 

IS 

14 

17 

19

21 

16 

18 

18 

21 

16 

23 

23 

18 

17 

21 

19 

20 

1S

Iron 

(Fe)

Calcium 

(Ca)

190 

185 

105 

44 

49 

33 

53 

70

49 

46 

49 

38 

34 

35 

50 

67 

33 

29 

30 

57 

82 

RR

Magnesium 

(Mg)

51 

52 

25 

8.3 

13 

7.3 

12 

16

10 

6.9 

8.2 

7.0 

6.8 

6.9 

12 

16 

7.5 

5.8 

7.2 

12 

18 

an

Sodium 

(Na)

Potassium 

(K)

535 

520 

390 

87 

145 

57 

100 

240

99 

31 

39 

24 

16 

33 

140 

237 

87 

39 

46 

124 

198 

158

Bicarbonate 

(HCO,)

110 

130 

115 

95 

100 

102 

107 

.114

125 

112 

86 

108 

100 

117 

108 

109 

124 

100 

106 

128 

142 

i2n

Sulfate 

(SO,)

529 

514 

243 

86 

99 

55 

107 

117

101 

64 

71 

39 

36 

38 

87 

121 

76 

48 

45 

118 

187 

212.

C
July 11-13, 18-17 

Aug. 31 -Sept. 5 

Sept. 11-13, 15, 16 

Sept. 14, 16, 17-19 

Sept. 14, 20 

Sept. 25-30 

Weighted average 

8.85 

63.1 

169 

140 

15.4

1.84 

2.17 

347 

320 

205 

29.3 

97.8

9.78 

271 

781 

472 

140 

31.2

240

8.0 

7.7 

7.7 

7.8 

7.9

7.8 

7.9 

8.0 

7.7 

7.7 

7.9 

7.8

8.0 

7.9 

7.8 

7.8 

7.9 

8.0

--

1,750 

2,010 

476 

4,240 

2,290

2,640 

3,130 

4,840 

1,510 

800 

1,470 

561

864 

1,230 

686 

368 

640 

1,320

772

18 

22 

19 

20 

18

23 

23 

21 

19 

20 

19 

12

14 

13 

15 

11 

22 

16

16

102 

115 

54 

158 

90

104 

144 

140 

40 

28 

58 

50

62 

61 

35 

30 

30 

60

45

29 

35 

7.9 

55 

32

36 

44 

42 

11 

6.9 

16 

7.9

12 

15 

7.4 

5.2 

7.4 

49

10

215 

240 

16 

653 

324

414 

467 

842 

244 

120 

218 

49

95 

167 

94 

36 

87 

124

96

115 

92 

84 

120 

113

91 

83 

133 

123 

112 

114 

94

119 

107 

106 

83 

106 

125

105

291 

346 

82 

482 

245

333 

474 

387 

118 

76 

143 

91

116 

133 

72 

46 

65 

132

85

1

1

I/Includes days of less than 0.05 second-foot flow.
COLORADO RIVER BASIN Continu

COLORADO RIVER AT ROBERT LEE, TKX

Temperature(° F ) ot water, water year October 19

Day

3 ~

A

 to

Oft

99

90

29

A er

October

en

November December January

AQ

OQ

February

CO

March

AO

170

A
COLORADO RIVER BASIN 251

COLORADO RIVER BASIN Continued

COLORADO RIVER AT ROBERT LEE, TEX.--Continued

Suspended sediment, January to September 1949

Day

o

D

20

91

22

25

no

Total -

2

12

1 1

19

9n

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

January

Mean 

discharge 

(secondfeet)

12 

12 

13 

13 

12

11 

12 

18 

18 

16

16 

22 

24 

23 

23 

22

267

Suspended sediment

Mean' 

concentration 

(ppm)

12

38 

I 38

44

Tons 

per 

day

0.4

1 i/.v

1.1 

1.6

2.6 

1/2.4

26.1

April

1.7 

2.0 

1.2 

2.3 

2.9

3.2 

2.9 

2.3 

1.2 

1.1

1.1 

.9 

.6 

.4 

.5

.5 

.3 

.4 

1,230 

3,200

2,040 

676 

435 

877 

566

266 

236 

962 

1,220 

752

12, 485. 5

14

1 "

10

14

10, 700 

13,200

12,400 

8,290 

3,600 

3,470 

4,750

350 

194 

5,700 

5,020 

7,070

-

0.1

.1

2/47,500 

2/122,000

2/71,900 

2/15,100 

2/4,660 

2/23,700 

2/9,650

251 

124 

2/19,700 

2/16,300 

2/14,300

3/345,200

February

Mean 

discharge 

(secondfeet)

18 

14 

13 

12 

14

14 

12 

9.9 

9.2 

7.9

6.7 

6.1 

6.1 

62 

8.5

5.5 

15.0 

4.1 

4.6 

7.3

7.3 

(7.9 

69 

81 

44

f 48 

28

i 22

547.1

Suspended sediment

Mean 

concentration 

(ppm)

18 

24

12

V 20

408 

40

30 

27

485 

1,020 

200 

64

} «

Tons 

per 

day

1/1.5 

.7

.9 

.3

.3

2/128 

.9

.4 

.4

2/16 

2/139 

2/52 

7.6

2.1

360

May

1

512 

334 

276 

244 

216

(

232 

539 

9,680 

3,760 

1,540

' 908 

518 

376 

. 324 

286

4,000 

7,380 

, 3, 680 

759 

372

283 

239 

166 

168 

150

156 

909 

3,200 

2,320 

916 

518

44, 961

2,420 

800 

400 

366 

224

266 

1,560 

14,500 

9,100 

5,800

3,900 

1,900 

800 

532

9,590 

8,940 

10, 400 

4,600 

1,350

450 

300 

375 

300 

240

200 

3,540 

10,300 

12,500 

12, 500 

8,000

-

2/3,450 

721 

298 

241 

131

167 

2/3,680 

2/387,000 

2/98,300 

24,100

9,560 

2,660 

812 

465 

1/386

2/150,000 

1/188,000 

2/112,000 

2/10,200 

2/1,390

344 

194 

168 

136 

97

84 

2/32,800 

2/99,000 

2/76,700 

2/31,900 

2/11,600

1,247,000

March

Mean

discharge 

(secondfeet)

22 

19

I " U

I 12 r n \ u I 8.5 

I 6.7

[ 6.7 

\ 6.7 

I 6.7 

6.1 

5.5

5.0 

!5.0 

4.6 

4.6 

5.8 

8.5 

5.0 

5.0 

5.0 

4.1

f 5.0 

I 3.2 

I 32 

2.9 

2.3 

1.7

234.8

Suspended sediment

Mean 

concentration 

(ppm)

14 

31

} "

21

30

I 30 

> 28

I 28

Tons 

per 

day

0.8 

1.6 

1.0

.6

.5

I/. 4 

.5

.4

I/. 3

.2

16

June

310

219 

180 

162 

144

185 

247 

4,300 

2,930 

1,760

2,150 

763 

480 

331 

199

150 

115 

90 

70 

56

46 

40 

174 

96 

43

30 

24 

21 

19 

16

15,350

2,300 

750 

380 

290 

280

310 

416 

8,700 

8,470 

12, 800

10, 200 

7,200 

3,000 

980

130 

80

69 

27

-

1,920 

443 

185 

127 

109

155 

277 

2/138,000 

67,000 

60, 800

2/67,000 

14, 800 

3,890 

876 

1/236

1/97 

40 

19

15 

1.9

356,100

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

3/Includes sediment discharge for days of less than 0. 05 ton.
252 WESTERN GULF OF MEXICO BASINS

COLORADO RIVER BASIN Continued 

COLORADO RIVER AT ROBERT LEE, TEX. Continued 

Suspended sediment, January to September 1949 Continued

Day

10 ------

11 

1 9

15--. 

1 ft

20

91

2294

94

27 

28 ----- - 

29 

30 

31 

TqtalJuly

Mean 

discharge 

(secondfeet)

12 

11 

9.9 

9.2

8.5 

7.3 

6.1 

5.5 

5.0

4.1 

3.2 

126 

279 

59

28 

154 

159 

122 

62

38 

26 

20 

13 

9.2

4.1 

2.6 

1.7 

1.2 

1.4.

1, 208. 1 ,

Suspended sediment

Mean 

concentration 

(ppm)

i "

!"

754 

1,230

388 

170 

50

35 

37

Tons 

per 

day

0.7

.6

.4

2/1,010 

2/1,080 

1/48

1/5.7 

2/297 

73 

16 

1/6.7

1.8 

.2

2,560

August

Mean 

discharge 

(secondfeet)

1 1

I 0

f

o 

o 

o 

o 

16

/ 4.6 

\ 1-7 

.2 

347 

426

237 

164 

158 

138 

151

' 103 

52 

36 

22 

26

19 

12 

9.9 

7.9 

5.5 

160

2, 099. 2

Suspended sediment

Mean 

concentration 

(ppm)

1-

15,300 

10,700

5,800 

1,400 

1,070 

680 

490

376 

300 

225 

174 

174

190 

150 

126 

174 

131 

999

Tons 

per 

day

0.1

0

0 

0 

0 

0

.7

2/16,600 

2/11,800

1/3, 980 

620 

456 

253 

200

105 

42 

22 

10 

12

9.7 

4.9 

3.4 

3.7 

1.9 

2/1,700

35, 830

September

Mean 

discharge 

(secondfeet)

(

310 

47 

26 

23 

21

14 

11 

9.9 

7.9 I " 

1.1

I 19 

1,980 

851

769 

450 

273 

230 

413

234 

114 

131 

81 

54

40 

31 

25 

21 

16

6,218.4

Suspended sediment

Mean 

concentration 

(ppm)

2,210 

309 

106 

76

44

23 

34 

36 1 " 

1 "

504 

7,650 

4,270

7,270 

12,500 

6,070 

2,170 

3,550

3,970 

1,700 

800 

475 

275

240 

120 

65 

44 

61

Tons 

per 

day

2/2,440 

2/44 

7.4 

4.7 

2.5

.9 

1.0 

1.0 

.7

.5

2/349 

2/57, 700 

1/10,000

1/14, 500 

2/15,200 

1/4,660 

2/1,350 

2/4,060

1/2,520 

523 

283 

104 

40

26 

10 

4.4 

2.5 

2.6

113, 800

Total discharge for period Jan. to Sept. 1949 (second-foot-days) 

Total load for period Jan. to Sept. 1949 (tons) 

83,371.1

2,101,000

1/Sedlment discharge computed by subdividing day.
COLORADO RIVER BASIN Continued 

COLORADO RIVER NEAR SAN SABA , TEX.

J£!?^?2£ - r;;« br 8Lnn U> S - H^?hway 19° (revised) 5.2 miles downstream from San Saba River, a

DRAINAGE AREA. 30, 600 square miles, of which 11,800 square miles is probably noncontributing. 

RECORDS AVAILABLE. --Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,100 parts per million Sept. 10-13, 17; minimum

Total hardness: Maximum, 397 parts per million Sept. 10-13. 17: minimum, 71 parts per million 

Water temperatures: Maximum, 91" f July 10; minimum, 36* F Feb. 1. 

EXTREMES, 1947-49.- Dissolved solids: Maximum, 1,530 parts per million Oct. 15-19, 1947; minimu

Total hardness: Maximum, 522 parts per million Oct. 15-19, 1947; minimum, 71 parts per millio

Water temperatures:- Maximum, 92* F , Aug. 15, 1948; minimum, freezing point Jan. 29, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

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

Jan. 1-10, 1949 

Mar. 21-31 

Mean 

discharge 

(secondfeet)

164 

238 

600 

149 

96.3 

110 

102

86.2 

97.2 

106 

97.7 

161 

371

197 

166 

592 

1,164 

281 

146 

n Ran

Temperature 

<°F)

PH

8.0 

«. n

Specific 

conductance 

(micromhos at 

25" C)

1,160 

1,330 

759 

641 

970 

1,640 

1,040

890 

925 

874 

858 

880 

859

499 

752 

860 

489 

523 

605 

Sfi1

Silica 

(Si02)

16 

14 

11 

11 

13 

11 

11

11 

9.0 

9.8 

11 

8.2 

8.0

9.0 

9.9 

8.8 

8.0 

11 

7.8 

in

Iron 

(Fe)

Calcium 

(Ca)

79 

82 

59 

56 

73 

93 

68

66 

68 

67 

66 

68 

66

50 

68 

70 

43 

52 

59

4fl

Magnesium 

(Mg)

20 

28 

16 

18 

23 

28 

23

25 

25 

25 

31 

26 

17

17 

23 

23 

12 

15 

20 

R R

i f (Na) slum 

(N&) (K)

±19 

148 

70 

51 

95 

205 

106

85 

88 

80 

63 

76 

86

29 

58 

74 

38 

33 

37 

21

Bicarbonate 

(HCOS )

196 

188 

158 

192 

232 

244 

244

276 

281 

286 

283 

271 

223

203 

231 

220 

141 

194 

226

14O

Sulfate 

(S04)

132 

154 

91 

55 

85 

122 

55

42 

42 

40 

39 

50 

74

29 

74 

86 

39 

36 

43

22

Ch

ri

(C
COLORADO RIVER NEAR SAN SABA, TEX. 

COLORADO RIVER NEAR SAN SABA, TEX.--Continue

Chemical analyses, in parts per million, water year October 1948 to Septe

Date of collection

Apr. 1-10, 1949 

Apr. 21-23, 27-30 -

May 2-4, 8-10 

Sept. 107 13, 17 

Sept. 14-16, 18-20-

Weighted average

Mean 

discharge 

(secondfeet)

187 

1,452 

18,880 

8,473 

6,410 

6,020 

5,576 

3,423

1,490 

2,039 

1,844 

684 

976 

319 

292 

241

281 

425 

183 

207 

277 

730 

393

1,309

Temperature

pH

8.1 

7.7 

7.9 

7.8 

7.9 

7.7 

7.8 

7.7

8.0 

8.0 

8.0 

8.1 

7.8 

8.2 

8.1 

8.2

8.0 

8.1 

8.0 

8.0 

7.8 

8.0 

7.7

Specific 

conductance 

(micromhos at 

25° C)

484 

517 

315 

665 

471 

334 

435 

369

439 

859 

475 

512 

376 

522 

544 

613

672 

502 

516 

685 

1,920 

971 

453

455

Silica 

(Si08)

13 

11 

11 

12 

14 

13 

12 

11

15 

16 

13 

13 

11 

12 

15 

14

14 

14 

14 

14 

15 

16 

9.9

12

Iron 

(Fe)

Calcium 

(Ca)

51 

53 

38 

52 

49 

41 

44 

41

46 

57 

42 

48 

19 

48 

50 

53

56 

45 

48 

58 

108 

62 

39

45

Magnesium 

(Mg)

15 

17 

5.7 

7.8 

8.1 

7.2 

8.5 

8.3

9.5' 

15 

11 

15 

5.8 

14 

17 

14

18 

11 

12 

15 

31 

21 

9.1

9.4

So- fodliim tfs- 

(Na) -»

25 

34 

17 

70 

33 

15 

31 

19

27 

95 

39 

37 

53 

37 

37 

53

58 

29 

38 

58 

242 

104 

37

34

Bicarbonate 

(HCO,)

204 

222 

126 

141 

140 

137 

145 

130

135 

162 

149 

176 

146 

176 

206 

186

212 

143 

164 

178 

167 

189 

118

147

Sulfate 

(S04)

17 

31 

16 

52 

34 

15 

31 

24

43 

65 

37 

37 

22 

36 

29 

49

50 

45 

35 

61 

231 

100 

45

31

Ch

rid

(C
Temperature (° F ) of water, water year Octobe

Day

13

1 Q

24

Ofi

29

October

7K

70

eg

CQ

59

eg

Tfl

November

CQ

CD

CD

CO

CD

eg

eg

December

eg

57

CD

January

AQ

CO

Att

(17

^fl

4O

eg

07

February

AQ

CO

CQ

CD

CO

CQ

March

CO

C7

58
COLORADO RIVER BASIN Continued 

COLORADO RIVER AT AUSTIN, TEX.

LOCATION. At raw water intake pipe of Austin City wa*er plant 4J miles upstream from gaging st

on Hontopolis Bridge on D.S. Highway 290.

DRAINAGE AREA. 38,160 square miles, of which 11,900 square miles is probably noncontributing 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 288 parts per million Jan. 1-31; minimum, 255 p

Total hardness: Maximum, 176 parts per million Jan. 1-28; minimum, 153 parts per million Sep

Water temperature: Maximum 84 F Sept. 6; minimum, 43° F Feb. 4. 

EXTREMES, 1947-49. Dissolved solids: Maximum, 322 parts per million October 1-31, 1947; minim

Total hardness; Maximum, 197 parts per million Jan. 1-31, 1948; minimum, 153 parts per mill

Water temperature: Maximum, 87° F Aug. 12-13, 1948; minimum, 43° F Jan 28, 1948 Feb. 4 

REMARKS. Discharge records for gaging station at Austin, Tex., for water year October 1948 to 

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

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-31, 1948 

Jan. 1-31, 1949 

M3T 1 31

Weighted average --

Mean 

discharge 

(secondfeet)

939 

768 

732 

702

720 

1,125 

1,069 

1,174

2,042 

1,912 

1,806 

1,547

1,214

Temperature

(°F)

PH

8.0 

8. 2 

8.2 

7.9

8.0 

8.2 

8.1 

7.8

--

Specific 

conductance 

(micromhos at 

25° C)

447 

475 

488 

515

498 

497 

493 

492

497 

483 

477 

485

487

Silica 

(Si02)

9.9 

9.4 

8.8 

7.2

8.1 

7.7 

8.0 

10

9.5 

11 

9.5 

11

9.5

Iron 

(Fe)

Calcium 

(Ca)

39 

41 

42 

44

44 

44 

44 

44

41 

42 

42 

43

42

Magnesium 

(Mg)

15 

14 

16 

16

16 

15 

15 

15

15 

15 

13 

11

14

So P°- 

*um fs-

(Nal slum 

(Na) (K)

31 

37 

34 

40

35 

37 

35 

34

38 

35 

36 

40

36

Bicarbonate 

(HCO,)

158 

166 

170 

179

177 

176 

173 

172

466 

174 

169 

168

170

Sulfate 

(S04)

28 

30 

31 

32

31 

32 

31 

31

32 

31 

30 

31

30
Temperature (* F ) of water, water year October 1

Day

12 

1ft

19 - --

Oft

nq

26- -- 

97

OQ

29

verage

October

rjR

179

72

7«

73

79

7Q

79

na

75

November

AO

59

CQ

58

CQ

December

CQ

56

57

CQ

59

59

CQ

January

52

CQ

52

53

52

50

CO

49

59

52

February

44

49

^,0

54

BO

57

CQ

CQ

March

ce

CQ

59

CQ

63
COLORADO RIVER BASIN Continued 

COLORADO RIVER AT WHARTON, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 59 in Wharton, Wharton County, 1,000 feet 

and 12 miles upstream from Jones Creek. and 12 miles upstream from Jones Creek.

DRAINAGE AREA.--41,150 square miles, of which 11,900 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: April 1944 to September 1949.

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-31, 1948 

Jan. 1-31, 1949 

May 1 31

Weighted average

Mean 

discharge 

(second^ 

feet)

845 

871 

815 

949

963 

12,030 

2,082

1,419 

10,520 

1,673

1,630 

1,567 

1,162 

1,490

1,804

PH

7.9 

7.6 

8.1

7.8 

7.7 

8.2

8.0 

8.3 

7.7 

7.9

--

Specific 

conductance 

(micromhos at 

25° C )

508 

521 

542 

542

532 

240 

464

524 

273 

494

500 

489 

488 

484

406

Silica 

(SiOa)

17 

9.8 

6.8 

10

9.9 

8.4 

11

14 

14 

18

15 

17 

14 

14

12

Iron 

(Fe)

Calcium 

(Ca)

46 

48 

52 

51

52 

28 

46

48 

34 

47

44 

42 

40 

45

39

Magnesium 

(Mg)

16 

16 

16 

15

16 

4.1 

12

14 

3.9 

14

15 

15 

15 

13

11

Sodium 

(Na)

Potassium 

(K)

33 

33 

37 

38

33 

19 

31

40 

14 

32

32

34 

36 

34

27

Bicarbonate 

(HCO,)

190 

186 

205 

199

193 

104 

165

188 

112 

172

168 

166 

168 

172

148

Sulfate 

(S04)

30 

31 

33 

34

34 

12 

35

35 

20 

37

33 

31 

31 

30

27

Chlorid

(Cl)

4

5

5

5

5

2

4

5

1

4

4

5

4

4

3
COLORADO RIVER BASIN Continued

MORGAN CREEK NEAR COLORADO CITY, TEX.

LOCATION. At gaging station 227 feet downstream from bridge on U. S. Highway 80, about 1 mile up

west of Colorado City, Mitchell County, and 5i miles downstream from Cherry Creek. 

DRAINAGE AREA. 236 square miles.

RECORDS AVAILABLE. Chemical analyses: May 1947 to July 1949. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

Dam, discharge records are not available after May 6, 1949 when backwater rose above zero. Re

in district office at Austin, Tex.

Chemical analyses, in parts per million, Octobervl948 to Ju

Date of collection

Oct. 11-13, 1948 

Jan. 13, 16-18, 

1949 I/

Jan. 21-27, 29-31 J/

Feb. 1-2, 6-8, 12 

Mar. 2-3, 5, 7,

Mar. 21, 24, 26 

Apr. 21-22, 28-30--

Anr 28-27 

Mean 

discharge 

(secondfeet)

0.90 

.0

.08 

.19

.05

.10 

.0 

.0

2,330 

239

4.75 

in R

Temperature 

(°F)

PH

7.4 

7.4 

7.4

7.7 

7.9 

7.8 

7 R

Specific 

conductance 

(micromhos at 

25° C)

558 

1,650

6,170 

7,830

8,540

1,770 

2,010 

2,150

2,070 

394 

227 

372 

1,130 

 >. 140

Silica 

(SiO,)

13 

7.2

4.0 

3.7

2.8

9.2 

6.8 

4.6

16 

14 

10 

11 

12 

11

Iron 

(Fe)

Calcium 

(Ca)

26 

62

196 

218

238

63 

71 

79

93 

33 

27 

32 

60 

87

Magnesium 

(Mg)

7.1 

21

86 

105

116

24 

27 

32

31 

7.4 

5.1 

6.6 

17 

sn

So- f°-

dium t?8 - 

,N > slum 

(Na) (K)

76 

264

1,070 

1,400

1,540

260 

299 

327

307 

40 

16 

35 

145 

sn7

Bicarbonate 

(HCO,)

88 

157

232 

188

159

106 

114 

128

176 

128 

109 

111 

121 

147

Sulfate 

(SO,)

70 

248

872 

1,050

1,130

236 

281 

319

319 

38 

19 

46 

163 

snfi

C

1

1

2

.I/Includes days of less than 0. 05 second-foot flow.
COLORADO RIVER BASIN Continued

MORGAN CREEK NEAR COLORADO CITY, TEX. Cont

Chemical analyses, In parts per million, October 1948 to July 19

Date of collection

May 1, 6, 1949 

June 11-12, 19 

June 21-22, 25-26,

Julv 4-5. R -

Mean 

discharge 

(secondfeet)

5.00 

1.60

Temperature 

(°F)

PH

7.6 

7.5 

7.6

7.8 

7.7 

7.8

7.7 

7.8 

7 R

Specific 

conductance 

(micromhos at 

25" C)

700 

1,500 

276

803 

1,430 

497

1,460 

394 

it 9 an

Silica 

(Si02)

14 

14 

15

20 

18 

22

24 

24

21

Iron 

(Fe)

Calcium 

(Ca)

49 

76 

26

50 

75 

42

76 

36

07

Magnesium 

(Mg)

11 

21 

5.2

12 

21 

7.8

22 

6.2 

si

Sodium 

(Na)

Potassium 

(K)

75 

202 

24

94 

190 

47

190 

28

144

Bicarbonate 

(HCOS )

107 

140 

104

129 

159 

139

144 

119

17R

Sulfate 

(SOJ

119 

213 

29

107 

207 

58

219 

33

117

Ch

ri

(C

2

2

2

4
COLORADO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN COLORADO RIVER 

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Mean 

discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25' C )

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S0«)

Chlorid

(Cl)

COLORADO RIVER NEAR IRA

Oct. 5, 1948 -- 

Oct. 14 -

8,450 

2,810

108 

104

420 

85

2,530 

732

COLORADO RIVER AT BALLINGER

Nov. 22, 1948 

Feb. 10, 1949 

15 

15

2,570 

2,520

6.0 

2.4

158 

162

40 

49

338 

306

CONCHO

Nov. 22, 1948 19 824 9.8 66 29

178 

179

398 

449

518 

465

RIVER NEAR PAINT ROCK

61 191 106 106 

DOVE CREEK, SCHLEICHER COUNTY

Sept. 27, 1949 1/10.8 7,9 1,180 29 69 20 121 236 24 208 

LAKE BROWNWOOD NEAR BROWNWOOD

July 29, 1949 ----- 7.9 350 10 40 8.1 20

PECAN

Nov. 23, 1948 

Feb. 10, 1949 

0.1 

.4

412

457

5.5 

7.0

51 

54

7.2 

9.4

136 16 34 

BAYOU AT BROWNWOOD

23 

24

159 

181

26 

26

35 

36

I/Instantaneous discharge.
COLORADO RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Mean 

discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(S10,)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HC03)

Sulfate 

(S04)

Chloride 

(Cl)

HORDS CREEK RESERVOIR NEAR VALERA

July 28, 1949 7.8 247 15 36 4.3| 11 138 8.8 6.0 

SAN SABA RIVER AT SAN SABA

Nov. 23, 1948 

Feb. 8, 1949 

42 

68

547 

526

10 

10

66 

62

31 

27

12 

13

328 

307

9.9 

13

18 

19

LLANO RIVER AT LLANO

Nov. 21, 1948 

Feb. 8, 1949 

86 

108

362 

401

8.2 

6.2

38 

40

21 

22

3.6 

12

191 

213

9.6 

13

16 

19

LLANO RIVER NEAR CONFLUENCE OF COLORADO RI

Oct. , 1948 8.2 335 | 11 | | 36 17 9.5 4.2 185 8.7 19 

PEDERNALES RIVER NEAR JOHNSON CITY

Nov. 21, 1948 9.8 779 2.4 50 44 31 234 35 102 
GUADALUPE RIVER BASIN 

GUADALHPE RIVER AT VICTORIA, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 59 in Victoria, Victoria County, 1,300 fee

and 10 miles upstream from Coleto Creek. 

DRAINAGE AREA.--5,311 square miles (revised). 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946, October 1948 to September 

determinations: October 1945 to September 1949.) 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 789 parts ner million Jan. 29-31; minimum, 262 par

Total hardness: Maximum, 340 parts per million Jan. 29-31; minimum, 113 parts per million Apr. 

EXTREMES, 1945-46, 1948-49.--Dissolved solids: Maximum, 1,040 parts per million Jan. 11-17, 1946; 

Total hardness: Maximum, 428 parts per million Jan. 11-17, 1946; minimum, 113 parts per million 

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office in Austin, Tex.

Chemical analyses, In parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mzir 1 19

Mar 11 20

Mar. 21-24, 29 - 

Mar. 25-28, *30-31 

Mean 

discharge 

(secondfeet)

355 

493 

542 

372 

414 

403

422 

434 

425 

415 

444 

593 

598

539 

525 

1,989 

2,919 

1,045 

752 

862

Temperature 

(°F)

PH

7.4

7.6 

7.8 

7.8

Specific 

conductance 

(micromhos at 

25° C)

659 

650 

640 

586 

671 

673

810 

754 

823 

742 

734 

719 

1,270

1,130 

647 

704 

659 

667 

561 

805

Silica 

(Si02)

17 

18 

15 

17 

19 

14

12 

13 

14 

21 

17 

13 

12

9.4 

5.1 

8.1 

11 

13 

13 

13

Iron 

(Fe)

0.00

Calcium 

(Ca)

55 

56 

54 

60 

65 

67

71 

69 

73 

68 

69 

68 

87

76 

52 

57 

60 

62 

56 

73

Magnesium 

(Mg)

20 

20 

17 

19 

18 

21

22 

21 

21 

22 

21 

20 

30

25 

18 

18 

16 

15 

13 

19

Sodium 

(Na)

Potassium 

(K)

49 

46 

39 

31 

44 | 6. 8 

40

58 

54 

60 

50 

49 

51 

126

119 

50 

58 

50 

48 

38 

61

Bicarbonate 

(HCO,)

217 

220 

200 

223 

246 

250

234 

240 

246 

240 

240 

247 

245

225 

194 

198 

193 

196 

188 

228

Sulfate 

(S0«)

30 

29 

29 

29 

31 

29

31 

32 

32 

32 

33 

31 

43

44 

35 

32 

33 

33 

27 

34

Ch

rid

(C
GUADALUPE RIVER BASIN Continued

GUADALUPE RIVER AT VICTORIA, TEX. Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Apr. 1-10, 1949 

Apr. 22, 27-30 

Apr. 23, 25-26 

June 20-21, 27-30 

July 11-16, 18 

July 17, 19-20 -----

Aug. 1-5, 9-10 

Weighted averageMean 

discharge 

(secondfeet)

827 

712 

5,035 

13, 780 

9,557 

8,360 

2,118 

1,864 

1,345

1,061 

1,507 

898 

872 

775 

929 

1,335 

857

670 

892 

722 

536 

535 

493 

697

1,200

Temture 

(°F)

PH

7.8 

8.0 

8.0 

7.8 

7.8 

7.9 

8.1 

8.2 

8.2

7.8 

7.9 

8. 3 

7.9 

7.8 

7.7 

8.1 

8.0

7.9 

7.8 

7.8 

7.6 

8.0 

7.8 

8.1

-

Specific 

conductance 

(micromhos at 

25° C)

736 

769 

1,180 

373 

770 

468 

718 

691 

660

729 

577 

647 

1,030 

598 

670 

533 

471

549 

1,080 

656 

590 

585 

579 

554

632

Silica 

(SiO.)

13 

13 

11 

12 

11 

16 

18 

16 

16

18 

18 

16 

16 

16 

19 

16 

16

15 

13 

19 

18 

17 

16 

18

14

Iron 

(Fe)

Calcium 

(Ca)

74 

72 

73 

35 

52 

51 

76 

75 

73

68 

59 

61 

76 

58 

55 

47 

46

52 

64 

60 

55 

54 

54 

55

57

Magnesium 

(Mg)

20 

20 

21 

6.2 

11 

8.0 

15 

16 

16

21 

16 

22 

25 

20 

20 

12 

11

14 

20 

17 

18 

19 

19 

13

15

Sodium 

(Na)

Potassium 

(K)

46 

53

30 

82 

33 

50 

42 

42

47 

36 

25 

92 

34 

52 

44 

35

40 

120 

48 

37 

39 

37 

43

48

Bicarbonate 

(HCO,)

248 

247 

170 

107 

118 

170 

242 

251 

253

240 

217 

226 

227 

217 

203 

174 

175

197 

167 

224 

216 

219 

222 

224

190

Sulfate 

(SOJ

34 

33

20 

27 

26 

*4 

31 

32

33 

26 

32 

38 

29 

32 

25 

20

27 

31 

28 

29 

29 

28 

26

28

Chl

rid

(Cl

2

2
GUADALUPE RIVER BASIN--Continued

MISCELLANEOUS ANALYSES OF STREAMS IN GUADALUPE RIVER 

Chemical analyses, in parts per million, August 194

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

PH

Specific 

conductance 

(micromhos at 

25" C)

Silica 

(SiOa)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

C

r

(

CIBOLO CREEK 0.7 MILE ABOVE SUTHERLAND SPR

12.6 617 8,1 21 56 11 52 174 62 

CIBOLO CREEK 500 FEET ABOVE SUTHERLAND SPR

18 1 18 |

CIBOLO CREEK AT SUTHERLAND SPRINGS

1.3 8

1 «D

CIBOLO CREEK HALF A MILE BELOW SUTHERLAND SP

Auc 17 1949

6- ! 8

n
NUECES RIVER BASIN

NUECES RIVER NEAR MATHIS, TEX.

LOCATION. At intake tower at Lake Corpus Christ! near Mathis, San Patricio County, and 0.8 mile 

DRAINAGE AREA. 16,660 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 288 parts per million Feb. 1-28; minimum, 175 par

- - - - -- - ---- -- per million Apr. 2

Total hardness: Maximum, 151 parts per million Apr. 1-26; minimum, 85 parts p< 

Water temperatures: Maximum, 91° F July 23; minimum, 44° F Jan. 31-Feb. 2. 

STREMES, 1947-49.--Dissolved solids: Maximum, 548 parts per million June 1-30, EXTREMES, 1947-49. Dissolved solids: Maximum,' 548 parts per million June i-30, 1948; minimum, 1

Total hardness: Maximum, 194 parts per million July 1-6, 1948; minimum, 85 parts per million A

Water temperature: Maximum, 94° F July 27, 1948; minimum, 38° F Jan.- 31, 1948.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Suppl

samples available in district office at Austin, Tex.

Chemical analyses, In parts per million, water year October 1948 to 

Date of collection

Oct. 1-31, 1948 -

Jan. 1-31, 1949 - 

Sept. 1-30 

Weighted average -

Mean 

discharge 

(secondfeet)

518 

128 

31.8 

39.8

48.7 

2,372 

890 

19,450 

3,976

1,821 

1,590 

650 

67.0

1,225

Temperature 

(°F)

PH

7.9 

8.2 

8.1

7.7

7.9 

7.8 

7.9 

7.8

-

Specific 

conductance 

(micromhos at 

25° C )

421 

400 

419 

442

445 

393 

407 

261 

373

429 

368 

347 

445

366

Silica 

(Si02)

19 

14 

16 

13

15 

16 

19 

12 

22

21 

19 

19 

22

18

Iron 

(Fe)

Calcium 

(Ca)

38 

36 

39 

42

42 

43 

50 

28 

43

47 

41 

38 

48

41

Magnesium 

(Mg)

5.9 

4.9 

3.3 

6.5

5.4 

4.6 

6.4 

3.6 

4.9

5.8 

5.5 

4.5 

4.7

4.9

Sodium 

(Na)

Potassium 

(K)

41 

40 

45 

41

46 

33 

27 

24 

27

35 

26 

28 

40

29

Bicarbonate 

(HC03 )

157 

134 

154 

167

168 

165 

184 

108 

162

167 

145 

128 

170

151

Sulfate 

(S0«)

29 

28 

26 

29

29 

20 

20 

22 

17

27 

25 

27 

34

22

Ch

ri

(C
Temperature (° F ) of water, water year October 1

Day

1 

2

20

23

nc

October

78 

78 

77 

77 

77

79

78 

77 

78

77 

75 

74 

76 

79

68 

66

68

70 

67 

77 

69

71 

70

71 

71 

72

74

November

73 

72 

73

72

70 

70 

70 

69 

61

64 

63 

74 

65

67 

64 

65

60

65 

62 

63 

63

66 

67 

62

60

66

December

61 

62 

62 

66 

63

61 

61 

57

57 

61 

65 

65 

67

68

63 

64 

68

69 

68

71 

66

60 

62 

68 

61

59

64

January

61 

61 

63 

59 

53

53 

56 

55

63

59 

55

56 

61

64 

52 

55 

54

54 

55 

62 

66 

54

52

55 

45

44

56

February

44 

44 

47

49

48 

48 

50 

53

55 

55 

61 

68 

63

64

59 

62 

64

67 

66 

68

65

65 

66 

59

58

March

69 

67 

61 

59 

61

64 

65 

68 

66

66 

66 

66 

68

68

68 

68 

67

71 

71 

70

74

73 

75

70 

71 

72

67
NUECES RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN NUECES RIVER 

Chemical analyses, In parts per million, water year October 194

Date of collection

Discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25«C )

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate

(so,)

Chlor

(Cl)

NUECES RIVER NEAR LACUNA

May 27, 1949 1/131 7.9 432 1 13 581 15 7 8 234 1 9.3 

NUECES RIVER NEAR TILDEN

Aug. 17, 1949 - 838 8.3 384 1 166 38 

FRIO RIVER AT CALLIHAM

Aug. 16, 1949 89 8.2 437 144 1 40 

ATASCOSA RIVER NEAR THREE RIVERS

Aug. 16, 1949 | 35 8.2 1,480 1

I/Mean discharge (second -feet).

157 226 1
RIO GRANDE BASIN Continued 

RIO GRANDE NEAR LOBATOS, COLO.

LOCATION. Two and one-half miles south of La Sauses, Conejos County, 7 miles downstream from C

which is 7 miles downstream from Culebra Creek and 10 miles east of Lobatos, Conejos County. 

DRAINAGE AREA. 7,700 square miles above gaging station (includes 2,940 square miles in closed 

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 454 parts per million Aug. 11-20; minimum, 106 

Total hardness: Maximum, 212 parts per million Aug. 11-20; minimum, 54 parts per million Jun

EXTREMES, 1946-49. Dissolved solids: Maximum, 691 parts per million July 21-31, 1948; minimum

Total hardness: Maximum, 306 parts per million July 21-31, 1948; minimum, 54 parts per mill

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sup

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Oct 11 20

Nov. 11-12, 14-20 

Dec 1 9

Dec. 11-12, 14-20 

Dec 21 31

Jan. 1-10, 1949 

Jan. 21-27, 29-30 

Feb. 11, 13-20 

F

_K 91 9ft

Mar. 11-18, 20 

May 1, 3-11, 13-14- 

Mav 15 20

Mav 21-31 ...

Mean 

discharge 

(secondfeet)

59.7 

75.1 

108 

151 

313 

260

242 

293 

274 

261 

289 

292

281 

266 

344 

483 

.457 

287

232 

259 

677 

1,249 

2,030 

1 SRS

Temperature

PH

7.9 

7.9 

7.7 

7.6 

7.5 

7.7

7.6 

7.6 

8.4 

8.4 

8.3 

8.0

7.9 

7.9 

7.9 

7.9 

7.7 

7.7

7.7 

7.8 

7.8 

7.7 

7.6 

7 7

Specific 

conductance 

(micromhos at 

25° C)

567 

506 

510 

365 

267 

268

272 

257 

253 

231 

222 

218

224 

292 

313 

292 

282 

454

460 

242 

258 

284 

185 

531

Silica 

(Si02)

39 

30 

34 

33 

30 

34

32 

33 

33 

37 

36 

33

33 

31 

30 

30 

30 

30

31 

25 

24 

24 

26 

54

Iron 

(Fe)

0.01 

.01 

.02 

.05 

.01 

.03

.01 

.01 

.02 

.02 

.01 

.03

.02 

.06 

.08 

.04 

.04 

.03

.04 

.05 

.04 

.05 

.05 

(U

Calcium 

(Ca)

52 

50 

50 

36 

27 

28

29 

27 

27 

25 

24 

23

24 

31 

33 

30 

30 

48

48 

25 

26 

28 

19 

5!!

Magnesium 

(Mg)

13 

11 

11

8.4 

5.4 

5.6

5.6 

5.2 

5.2 

4.8 

4.5 

4.9

4.6 

6.1 

6.6 

6.2 

6.1 

10

10 

5.5 

5.6 

6.1 

4.1 

i. «

Sodium 

(Na)

48 

39 

40 

27 

18 

17

16 

17 

15 

13 

13 

13

13 

18 

20 

19 

18 

32

34 

15 

17 

21 

12

17

Potassium 

(K)

4.8 

4.8 

6.6 

5.8 

8.2 

7.0

7.4 

6.6 

3.2 

3.2 

3.6 

6.4

5.4 

3.8 

4.2 

4.2 

5.0 

5.6

6.8 

6.0 

5.0 

5.0 

6.4

5 5

Bicarbonate 

(HCO,)

151 

145 

151 

120 

108 

110

111 

106 

99 

93 

97 

94

94 

107 

113 

107 

105 

143

142 

82 

80 

34

78

7«

Sulfate 

(S04)

132 

109 

111 

69 

37 

38

37 

35 

33 

29 

26 

27

27 

47 

52 

47 

44 

95

98 

44 

50 

60 

22 

41
RIO GRANDE BASIN Continued

RIO GRANDE NEAR LOBATOS, COLO. Continue

Chemical analyses, In parts per million, water year October 1948 to Se

Date of collection

June 1, 4-10, 1949I/

Weighted average 

Mean 

discharge 

(secondfeet)

1,500

4,561 

6,872 

2,923 

1,431 

389

241 

179 

102 

98.0 

94.7 

89.2

780

Temperature 

(°F)

pH

7.3

7.2 

7.3 

7.4 

7.6 

7.6

7.8 

7.3 

7.5 

7.5 

7.5

--

Specific 

conductance 

(micro - 

mhos at 

25° C)

154 

296 

170 

193 

193 

465 

509

605 

682 

675 

546 

544 

545

249

Silica 

(SiOa)

20

21 

20 

20 

29 

31

34 

34 

33 

34 

33 

32

24

Iron 

(Fe)

0.03

.35 

.12 

.14 

.06 

.06

.02 

.02 

.01 

.02 

.01 

.02

0.12

Calcium 

(Ca)

16

16 

19 

19 

44 

47

55 

62 

63 

52 

53 

54

25

Magnesium 

(Mg)

3.3

3.6 

4.3 

4.3 

9.6 

10

12 

14 

13 

11 

11 

11

5.3

Sodium 

(Na)

9.1

11 

12 

13 

39 

44

54 

63 

56 

41 

41 

39

17

Potassium 

(K)

4.2

-4.0 

3.8 

3. 6 

6.0 

6.0

6.4 

5.4 

5.8 

5.4 

5.4 

5.2

4.6

Bicarbonate 

(HCO,)

63 

86 

58 

65 

66 

141 

151

170 

177 

172 

147 

148 

145

84

Sulfate 

(S04)

18

28 

34 

33 

100 

110

141 

165 

165 

126 

127 

127

45

\l Discharge for June 2-3 included with discharge reported for June 1, 4-10.
RIO GRANDE BASIN

RIO GRANDE BASIN Continued 

RIO GRANDE AT EMBUDO, N. HEX.

LOCATION. At gaging station a quarter of a mile downstream from the bridge at Embudo,

Rio Arriba County, and 2f miles downstream from Embudo Creek. 

DRAINAGE AREA. 10,400 square miles (includes 2,940 square miles in closed basin in

northern part of San Luis Valley, Colo.). 

RECORDS AVAILABLE. Water temperatures: October 1948 to September 1949.

Sediment records: January 1948 to September 1949.. 

EXTREMES, 1948-49.--Water temperatures: Maximum, 72°F July 9; minimum, 33°F on several

days in December, January, and February. 

Sediment loads: Maximum, 21,700 tons per day June 20; minimum, 0 tons per day on many

days. 

EXTREMES, January 1948-September 1949. Sediment loads: Maximum, 51,000 tons per day

May 25, 1948; minimum, 0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Temperature (°F) of water, water year October 1948 to September 1949

[Once -daily temperature measurement at approximately 8 a. HL_

Day

1

2

3

4

5

6

7

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.

..

1/60

57

56

55

1/61

1/59

59

60

1/61

1/59

57

58

1/61

51

52

51

54

1/54

54

53

53

52

52

52

1/52

50

49

49

50

1/51

55

Nov.

1/52

51

46

47

1/47

44

44

1/40

1/40

41

40

1/44

40

1/44

40

40

1/44

_

--

_

1/37

Dec.

34

33

33

34

34

1/34

33

33

33

38

33

34

36

38

38

38

38

38

--

38

1/39

38

38

38

35

37

1/38

35

34

34

34

36

Jan.

1/35

35

34

33

33

33

34

34

35

35

35

35

36

36

35

34

33

33

1/35

34

35

36

39

40

38

39

1/38

36

36

34

1/33

35

Feb.

33

34

34

35

1/35

36

35

35

33

33

1/36

1/40

1/40

1/40

36

36

36

1/38

1/38

1/39

36

36

39

1/44

1/44

1/42

42

_

37

Mar.

_

1/46

1/46

1/47

48

1/47

47

43

1/44

1/44

43

44

42

40

43

45

48

47

46

48

48

47

43

43

1/46

49

51

1/53

1/47

46

Apr.

44

41

44

47

49

53

54

54

52

54

56

54

57

53

54

55

57

55

57

59

55

55

56

55

58

58

55

58

58

54

May

58

58

58

55

60

56

55

56

56

56

55

56

57

59

54

54

1/56

56

58

56

55

58

58

58

59

62

62

62

64

65

62

58

June

58

58

59

59

58

57

57

57

57

58

60

61

62

62

64

65

65

68

68

68

1/69

67

67

68

70

70

68

69

68

68

64

July

68

68

69

1/70

69

69

71

70

1/72

71

69

69

70

70

68

69

69

70

70

70

70

69

66

68

67

69

70

70

1/67

1/69

69

Aug.

68

69

69

68

68

52

67

68

69

68

70

68.

70

68

67

67

69

70

70

1/71

68

68

69

70

69

69

68

Sept.

57

54

66

66

66

..

66

64

67

64

64

63

61

63

62

63

62

64

64

62

62

62

61

61

59

59

59

59

59

60

62

.I/Reading obtained between 11 a. m. and 6 p. m.
272 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO GRANDE AT EMBDDO, N. HEX.--Continued

Suspended sediment, water year October 1948 to September 1949

Day

Q

 1O

94.

OQ

TotalD

Q

13

19

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

271 

271 

271 

275 

275

271 

267 

271 

271 

267 

275 

275 

280 

280 

284

280 

280 

284 

293 

311

316 

330 

325 

325 

320

316 

335 

365 

386 

365 

370

9,305

Suspended sediment

Mean 

concentration 

(percent)

1/0 

0

0 

0

\ 

Tons 

per 

day

0 

0

0

0 

0

0

January

518 

532 

546 

477 

325

470 

497 

504 

504 

504 

511 

511 

532 

546 

553

525 

518 

477 

511 

518 

518 

504 

518 

546 

560

560 

560 

560 

530 

540 

540

16,015

} 

' 0 

> 0

; 

0 

.01

-

0 

0

0 

0

0 

146

146

November

Mean

charge 

(secondfeet)

376 

365 

365 

365 

360

355 

350 

345 

345 

325 

325 

414 

477 

511 

532

553 

553 

553 

518 

470 

425 

484 

497 

511 

560

581 

539 

490 

( 432 

484

13,460

Suspended sediment

Mean 

concentration 

(percent)

0

 0

1/0 

1/0

I/O 

1/0 

1/0 

1/0 

1/0

$ 

§0

. 

Tons 

per 

day

0

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

February

540 

540 

540 

532

525 

504 

532 

504 

539

539 

553 

553 

546 

511

525 

525 

553 

/ 553 

\ 560 

567 

581 

609 

646 

678

662 

646 

654

15,742

0.01 

.01 

 .01

142 

146 

168

4,250

December

Mean

charge 

(secondfeet)

497 

511 

518 

539 

511

470 

490 

I 511 

484 

504 

511 

511 

525 

560 

581

574 

539 

553 

511 

525

553 

553 

581 

-609 

539

511 

581 

525 

497 

477 

518

16, 369

Suspended sediment

Mean 

concentration 

(percent)

0

0

1/0 

0

0

Tons 

per 

day

0

0

0 

0

0

0

March

662 

654 

686 

719 

746 

755 

782 

809 

827 

827

800 

791 

800 

782 

764

746 

746 

755 

755 

755

686 

630 

616 

609

602 

567 

525 

511 

518 

490

21, 652

0.01 

.01

.01

0

--

179 

205

206 

0

4,290

I/Estimated or interpolated,
RIO GRANDE BASIN 273

RIO GRANDE BASIN Continued

RIO GRANGE AT EMBUDO, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

g

12

1 R

21

99

24

25

oo

29

31 

Total0

1 o

19f)f\

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

490 

497 

504 

518 

504 

518 

539 

574 

574 

574

567 

581 

609 

630 

646 

638 

646 

702 

737 

755 

827 

899 

1,010 

1,080 

1,190

1,660 

1,840 

1,960 

1,960 

2,020

26, 249

Suspended sediment

Mean 

concentration 

(percent)

0

.01

.04 

.04 

.05 

.03 

.08

.08 

.08 

.07 

.07 

.05

Tons 

per 

day

0

176

893 

971 

1,360 

875 

2,570

3,590 

3,970 

3,700 

3,700 

2,730

26, 100

July

5,010 

4,460 

4,020 

3,540 

3,240

3,060 

2,820 

2,580 

2,200 

2,200

1,960 

1,960 

2,200 

2,580 

2,260 

1,960 

1,780 

1,500 

1,240 

1,080

935 

971 

1,190 

845 

881 

845 

800 

764 

719 

737 

710

61,047

0.03 

.03 

.^8? 

.02 

.02

.02 

.02 

.04 

.01 

.02

.04 

.02 

.05 

.04 

.02

.04 

.02 

.01 

.01 

.01

.01 

.02 

.09 

.05 

.12 

.03 

.09 

.01 

.02 

.13 

.12

4,060 

3,610 

2,170 

1,910 

1,750

1,650 

1,520 

2,790 

594 

2/1,330

2,120 

1,060 

2,970 

2,790 

1,220

2,120 

961 

405 

335 

292

252 

524 

2/3, 150 

1,140 

2,850 % 684* 

1,940 

206 

388 

2,590 

2,300

51,680

May

Mean

discharge 

(secondfeet)

1,900 

1,960 

2,080 

2,140 

2,380

2,450 

2,260 

2,020 

1,780 

1,720

1,900 

2,260 

2,760 

2,940 

2,940

3,060 

3,300 

3,540 

3,180 

. 2, 760 

2,450 

2,200 

1,960 

1,900 

1,900

1,960 

2,140 

2,320 

2,640 

2,520 

2,520

73, 840

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.04 

.04 

.06 

.04

.04 

.04 

.02 

.03 

.05

.06 

.04 

.06 

.04 

.05

.03 

.06 

.05 

.04 

.03 

.04 

.01 

.02 

.01 

.02

.01 

.02 

.02 

.02 

.02 

.02

Tons

per 

day

2,050 

2,120 

2,250 

3,470 

2,570

2,650 

2,440 

1,090 

1,440 

2,320 

3,080 

2,440 

4,470 

3,180 

3,970

2,480 

5,350 

4,780 

3,430 

2,240 

2,650 

594 

1,060 

513 

1,030

529 

1,160 

1,250 

1,430 

1,360 

1,360

70, 760

August

630 

595 

560 

595 

560 

781 

646 

630 

654 

630

616 

574 

532 

490 

470

432 

432 

458 

425 

414

403 

398 

386 

376 

376 

386 

381 

381 

381 

376 

480

15,448

0.02 

.16 

.02 

.01 

.06

.15

I/. 07 

I/. 05 

.04 

.10

.02 

.02 

I/. 01 

.01 

I/. 01

.01 

I/. 01 

.02

0

~

340 

2,570 

302 

161 

907

2/3,340 

1,220 

850 

706 

1,700

333 

310 

287 

132 

127

117 

117 

247

0

13,770

June

Mean

charge 

(secondfeet)

2,760 

3,060 

2,520 

2,020 

1,900 

1,840 

2,140 

2,520 

2,700 

2,940

3,060 

3,360 

3,780 

4,130 

4,570

5,010 

5,450 

6,220 

7,290 

8,050 

8,500 

9,520 

9,400 

8,610 

8,050

7,720 

7,390 

6,860 

6,110 

5,560

153, 040

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.03 

.02 

.01 

.01

.01 

.02 

.02 

.02 

.02

.02 

.03 

.04 

.06 

.06

.06 

.06 

.08 

.10 

.10 

.06 

.06 

.06 

.04 

.04

.04 

.04 

.04 

.04 

.04

Tons 

per 

day

745 

2,480 

1,360 

545 

513

497 

1,160 

1,360 

1,460 

1,590

1,650 

2,720 

4,080 

6,690 

7,400

8,120 

8,- 830 

13,400 

19, 700 

21, 700 

13, 800 

15,400 

15, 200 

9,300 

8,690

8,340 

7,980 

7,410 

6,600 

6,000

204, 700

September

601 

444 

386 

386 

386 

376 

370 

370 

376 

370 

365 

360 

365 

376 

370

370 

360 

350 

345 

350 

350 

345 

345 

360 

335 

330 

330 

335 

360 

403

11, 169

0.93 

.55 

.02

.01

 0

.02 

.03

2/15,300 

2/8,320 

208

101

0

184 

326

26, 270

Total discharge for year (second-foot-days) 

Total load for year (tons) 

433,336

402,000

I/Estimated or interpolated.

2/Sedlment discharge computed by subdividing day.
274 WESTERN GULF OF MEXICO BASINS

..

1

c

2;" 1?

0)

"-1 0 Q.

|BJ

TJ |M i

Qi J3 O 

C O +J "2 

 H M S S

 M o » S

T3 C 5 3. 0 SO o, 0) 

fl v Itffl

S ' "cS 

c X -a S

5

P4 fi "H . 

s sg-g

[ * -S "c a

l-l W (U Ot

S o t'l 

05 g -gQx 

1 S a^-^

1 H ^ 5 !

3 < -Sg^

° 1 i«ui "3% " 

0 S* 3

2 J i §

OS 'Sfi T3

«5^ 

In 2

3..-°

p, w c

t*

 s

S

ediment

T3 

1

^

i

hi

illimeters

S

c

S

ndicated s

than iner 

Percent fil

 B*

§ 8 

I S

>.

^g

C g

S °

a^, dischar 

(sec on

a

H

1

Q

I

§o

o

S5

o

i

o

10

.H

o

i

o

i

o

s

o

1

o

o'

i

o

1 1 

.s ^

tration (percent

j j

SSSS^ S-- 

yuuug u uu

m co co i i iii

OS CO OS 1 1 III

eo m t- i i i»i

t- CO 00 1 OS 0 t I

in «tf <D i os o i i

<* CO CO CO OS OS t 1

! ! ! ! S SI!

t- ^ eg m eg *-i^O

os e- « os co omi-<

m^t-»HO t-oso

fi 1-1 ea 1-1 oo ^^m

t- CM ^ o os mcooo 

r> S co CM co o CM 3

0 CM

"- o eo eg os co co eo

OfHOOO i-l O O)

0

CO l« rH O OS OSCDO 

r- O O CQ 1-1 in in CO

( a a a a a a a a

a. en* a. a. « a. « a

O O rH CM O « O O.

CO OO CO <D CO ^ OS CM

OS *

OS

I I tit ill
RIO GRANDE BASIN--Continued 

RIO GRANDE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, 

LOCATION.--At gaging station in San Ildefonso Pueblo Grant, 250 feet downstream from highway bri

miles downstream from Rio Pojoaque, and 7 miles west of Pojoaque.

DRAINAGE AREA.--14,300 square miles (includes 2,940 square miles in closed basin in northern par

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1949.

Water temperatures: October 1948 to September 1949.

Sediment records: October 1947 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 309 parts per million Aug. 11-20; minimum, 149 p

Total hardness: Maximum, 172 parts per million Aug. 1-10; minimum, 85 parts per million June 

Water temperatures: Maximum, 77°F July 30; minimum, freezing point on several days in January 

Sediment loads: Maximum, 176,400 tons per day July 23; minimum, 0 tons per day on several day

EXTREMES, 1946-49.--Dissolved solids: Maximum, 462 parts per million Aug. 15, 18-20, 1947; mini

1949.

Total hardness: Maximum, 274 parts per million, Aug. 15, 18-20, 1947; minimum, 85 parts per m

Sediment loads: Maximum, 176,400 tons per day July 23, 1949; minimum, 0 tons per day on sever

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 t

Date of collection

Oct. 1-10, 1948 

Nov. 11-13, 15-19- 

Nov. 21-23, 25, 26,

Dec. 1-3, 5-10 

Dec 11 20

Dec. 21-24, 26-31 

Jan. 1-10, 1949 

Feb. 1-5, 7-10 

Ma _ ) ) nn

Mar 21-31 

Mean 

discharge 

(secondfeet)

301 

304 

580 

438 

545

566

565 

628 

624 

550 

607 

612

601 

1,410 

2,315 

2,444 

2,342 

1 RQ7

Temperature 

<°F)

PH

7.8 

7.9 

7.9 

7.8 

7.6

7.7

7.7 

7.9 

8.0 

8.0 

8.2 

8.2

8.2 

7.9 

7.8 

7.9 

7.9 

7 a

Specific 

conductance 

(micromhos at 

25° C)

406 

403 

396 

439 

410

364

359 

343 

332 

349 

335 

323

323 

320 

302 

329 

359 

sna

Silica 

(Si02)

33 

33 

28 

27 

28

29

28 

36 

34 

38 

29 

28

29 

23 

19 

18 

20 

aa

Iron

(Fe)

0.01 

.01 

.02 

.01 

.01

.01

.01 

.01 

.01 

.01 

.03 

.03

.04 

.04 

.02 

.02 

.03 

m

Calcium 

(Ca)

43 

43 

44 

46 

44

40

40 

38 

37 

38 

37 

36

36 

39 

39 

37 

43 

da

Magnesium 

(Mg)

9.3 

9.3 

8.9 

9.6 

8.7

7.6

7.8 

7.0 

6.7 

7.6 

7.3 

7.0

6.9 

7.3 

8.4 

8.0 

9.9 

m

Sodium 

(Na)

30 

28 

26 

32 

29

24

25 

22 

22 

23 

21 

20

21 

17 

21 

17 

17

Potassium 

(K)

4.4 

4.4 

3.2 

3. 8 

7.0

6.4

6.8 

2. 8 

2.4 

2.6 

9.4 

5.8

6.0 

5.4 

6.4 

4.4 

4.8

A. R

Bicarbonate 

(HC03 )

162 

167 

149 

168 

160

150

153 

142 

139 

146 

143 

139

139 

132 

120 

108 

124

110

Sulfate 

(SO.)

68 

61 

71 

76 

67

51

50 

47 

45 

48 

44 

42

43 

48 

70 

68 

76

C

r

(
RIO GRANDE BASIN--Continued

RIO GRANDE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, N. HE

Chemical analyses, In parts per million, water year October 1948 to Sept

Date of collection

Apr. 1-10, 1949 

May 21 31

Weighted averageMean 

discharge 

(secondfeet)

1,252 

1,218 

2,709 

3,112 

4,059 

4,253

3,985 

6,112 

8,590 

3,648 

2,515 

1,670

959 

660 

849 

1,138 

646 

429

1,800

Temperature 

CF)

PH

7.9 

7.8 

7.9 

8.0 

8.1 

8.0

8.1 

8.0 

7.9 

7.9 

8.1 

8.1

8.1 

7.8 

7.5 

7.5 

7.5 

7.6

--

Specific 

conductance 

(micromhos at 

25° C)

412 

392 

304 

240 

294 

330

272 

281 

225 

236 

350 

430

464 

470 

429 

364 

399 

428

313

Silica 

(Si02)

23 

29 

21 

18 

21 

20

18 

22 

22 

21 

25 

27

27 

28 

23 

21 

20 

24

22

Iron 

(Fe)

0.03 

.05 

.03 

.02 

.04 

.03

.03 

.02 

.04 

.05 

.01 

.02

.01 

.01 

.04 

.02 

.02 

.02

0.03

Calcium 

(Ca)

45 

46 

42 

32 

38 

43

34 

38 

28 

27 

42 

52

54 

52 

52 

46 

44 

44

38

Magnesium 

(Mg)

11 

9.3 

7.0 

4.9 

5.6 

7.1

5.9 

5.5 

3.7 

4.9 

7.2 

8.5

9.1 

9.4 

7.9 

7.5 

8.7 

9.0

6.7

Sodium 

(Na)

28 

24 

12 

11 

13 

13

12 

9.4 

11 

11 

18 

24

28 

33 

26 

18 

25 

31

16

Potassium 

(K)

4.4 

4.2 

4.0 

4.0 

2.4 

2.0

2.0 

3.2 

3.6 

4.6 

4.8 

5.0

5.2 

5.2 

3.8 

3.6 

3.2 

3.4

4.1

Bicarbonate 

(HCO.)

130 

144 

134 

107 

120 

131

103 

116 

92 

84 

132 

161

159 

166 

162 

142 

147 

161

121

Sulfate 

(SOJ

97 

72 

41 

31 

42 

51

44 

37 

28 

37 

57 

73

89 

87 

74 

59 

67 

70

51

Ch

ri

(C

I/Reported boron concentrations in column are less than figure indicated.
Temperature (°F) of water, water year October 1

Day

3

.

12

1 3

20

91

OO

25

30

October

C7

53

cc

CO

54

50

50

November

qO

QC

07

43

39

43

December

39

OQ

January

OO

QC

* 32

34

34

39

39

qo

37

February

qo

34

QC

07

March

45

dR

46
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO GRANGE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, N. HEX.--Continued 

Suspended sediment, water year October 1948 to September 1949

Day

9

1 o

on

91

99

23

9fi

no

9Q

Total10

19

21 

22 

23 ------

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

290 

303 

303 

306 

306

297 

297 

300 

306 

306 

303 

310 

310 

310 

313 

300 

300 

290 

306 

293

362 

369 

380 

819 

812

805 

812 

563 

474 

483 

506

12,434

Suspended sediment

Mean 

concentration 

(pefcent)

0.01 

.01 

.01 

.01 

.01

.01 

0 

0 

.01 

0 

0 

0 

0 

.01 

.01

.01 

.01 

.01 

0 

0

.10 

.02 

.02 

.37 

.11

.06 

.06 

.02 

.03 

.05 

.09

Tons 

per 

day

78 

82 

82 

83 

83

80 

0 

0 

83 

0 

0 

0 

0 

84 

85

81 

81 

?8 

0 

0 

977 

199 

205 

2/9, 030 

2,410

1,300 

1,320 

304 

384 

652 

1,230

18,990

January

615 

615 

604 

506 

391

391 

568 

589 

599 

620

625 

625 

647 

692 

647

599 

534 

548 

548 

609

615 

594 

620 

652 

658 

636 

642 

620 

578 

558 

558

18,303

0.02 

.02 

.03 

.02 

.03

.03 

.04 

.06 

.04 

.04

.03 

.04 

.04 

.04 

.03

.03 

.05 

.05 

.05 

.03

.03 

.02 

.02 

.04 

.03 

.04 

.04 

.03 

.03 

.03 

.07

332 

332 

489 

273 

317

317 

613 

954 

647 

670

506 

675 

699 

747 

524

485 

721 

740 

740 

493

498 

321 

335 

704 

533 

687 

693 

' 502 

468 

452 

1,050

17, 520

November

Mean

charge 

(secondfeet)

510 

461 

448 

431 

439

423 

419 

427 

411 

411 

388 

419 

506 

548 

568 

609 

615 

625 

599 

573 

519 

515 

558 

583 

630

647 

636 

568 

478 

529

15^493

Suspended sediment

Mean 

concentration 

(percent)

0.23 

.08 

.04 

.02 

.06

.04 

.03 

.02 

.02 

.01 

.02 

.02 

.04 

I/. 03 

.02

.02 

.02 

.02 

.02 

I/. 02

.01 

.01 

.01 

.02 

.02

.02 

I/. 02 

.02 

.02 

.03

Tons 

per 

day

3,170 

996 

484 

233 

711

457 

339 

231 

222 

111 

210 

226 

546 

444 

307 

329 

332 

338 

323 

309 

140 

139 

151 

315 

340

349 

343 

307 

258 

428

13, 090

February

599 

615 

630 

625 

615

599 

594 

599 

553 

583

620 

647 

652 

669 

713

2,080 

2,180 

2,180 

2,180 

2,180

2,180 

2,240 

2,240 

2,300 

2,360 

2,420 

2,420 

2,360

38,633

0.03 

.06 

. .04 

.05 

.04

I/. 04 

.04 

.06 

.02 

.03

.03 

.04 

.04 

.06 

.10

.44 

.36 

.36 

.30 

.24

.24 

.23 

.22 

.19 

.19 

.24 

.20 

.20

485 

996 

680 

844 

664

647 

642 

970 

299 

472 

502 

699 

704 

1,080 

2/3,240

24, 700 

21,200 

21,200 

17, 700 

14, 100 

14, 100 

13,900 

13,300 

11,800 

12, 100 

15, 700 

13, 100 

12, 700

218, 500

December

Mean

charge 

(secondfeet)

568 

573 

583 

604 

563

539 

548 

573 

558 

544 

578 

594 

604 

647 

669 

669 

642 

658 

630 

589

625 

652 

669 

697 

642

594 

647 

647 

583 

539 

568

18,796

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.02 

I/. 02 

.02

.02 

.01 

.02 

.02 

.02 

.02 

.02 

.02 

.03 

.02

.02 

.02 

.03 

.03 

.03 

.02 

.02 

.02 

.03 

I/. 03

.03 

.03 

.03 

.03 

.02 

.01

Tons 

per 

day

307 

309 

315 

326 

304

291 

148 

309 

301 

294 

312 

321 

326 

524 

361

361 

347 

533 

510 

477

338 

352 

361 

565 

520

481 

524 

524 

472 

291 

153

11. 560

March

2,300 

2,300 

2,300 

2,420 

2,540 

2,540 

2,540 

2,600 

2,480 

2,420

2,420 

2,420 

2,420 

2,360 

2,360

2,300 

2,360 

2,300 

2,240 

2,240

2,240 

2,130 

2,080 

2,020 

2,020 

1,960 

1,960 

1,860 

1,860 

1,540 

1,200

68, 730

0.17 

.16 

.16 

.21 

.26

.30 

.25 

.28 

.29 

.20

.20 

.24 

.24 

.20 

.22

.24 

.30 

.29 

.22 

.20

.20 

.18 

.16 

.17 

.14 

.13 

.15 

.12 

.16 

.13 

.10

10,600 

9,940 

9,940 

13, 700 

17, 800

20, 600 

17, 100 

19, 700 

19, 400 

13,100

13, 100 

15, 700 

15, 700 

12,700 

14, 000

14, 900 

19, 100 

18,000 

13,300 

12, 100

12, 100 

10, 400 

8,990 

9,270 

7,640 

6,880 

7,940 

6,030 

8,040 

2/5, 760 

2/3, 720

387,200

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN 279

RIO GRANDE BASIN Continued

RIO GRANDE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, N. HEX. Continued 

Suspended sediment, water year October 1946 to September 1949--Contlnued

Day

2 -

6 

13 

18 

19 

22 

OR

9.6

OQ

29 

30 

31 

Total2 

5 -

6 

10 

12 

13 

14 

15 

1A

20 

2J 

24 

25 

26 

27 

26 -

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

1,610 

1,660 

1,860 

1,420 

618

625 

917 

936 

1,030 

1,040

917 

911 

967 

1,120 

1,200

1,240 

1,260 

1,420 

1,510 

1,610

1,710 

1,910 

2,160 

2,460 

2,660

3,070 

3,070 

3,070 

3,360 

3,560

51,763

5,440 

4,900 

4,360 

3,610 

3,500 

3,430 

3,140 

2,660 

2,540 

2,460 

2,600 

2,460 

2,660 

3,360 

2,930

2,600 

2,420 

2,160 

1,610 

1,710 

1,700 

1,610 

3,260 

1,960 

1,910

1,660 

1,460 

1,260 

1,160 

1,050 

1,120

60, 000

Total discharge to 

Total load for yeai

Suspended sediment

Mean 

concentration

(percent)

0.16 

.19 

.12 

.09 

.05

.08 

.36 

.23 

.21 

.15 

.12 

.10 

.12 

.12 

.12

.12 

.11 

.17 

.15 

.17

.16 

.19 

.24 

.26 

.27 

.34 

.26 

.23 

.26 

.26

Tons 

P«r 

day

7,620 

9,540 

6,030 

2/3, 450 

1,100

1,760 

2/6, 990 

5,620 

5,640 

4,210 

2,970 

2,460 

3,130 

3,630 

3,690

4,020 

3,800 

6,520 

6,120 

7,390

6,310 

9,600 

14, 100 

16, 700 

19, 400 

28, 200 

21, 600 

19, 100 

25,400 

25, 100

266, 500

July

0.15 

.14 

.07 

.06 

.05

.06 

.04 

.05 

.03 

.23 

.91 

.49 

.37 

.97 

.20

.08 

.15 

.06 

.06 

.26 

1.05 

.51 

1.69 

1.01 

1.20 

.61 

.26 

.11 

.10 

.06 

.12

--

2/22, 100 

16, 500 

6,260 

6,170 

4,720

5,560 

3,390 

3,660 

2,080 

2/15,900

i/70,700 

1/32,900 

j/30,800 

[769,600 

15,600

5,620 

9,600 

4,710 

2/3, 360 

1/12,200

2/67,900 

24,900 

2/176^00 

53,400 

2/54,300

2/S7.100 

10, 200 

3,600 

3,130 

1,700 

2/3, 930

613, 000

r year (second-foot-day 

(tons)

May

Mean

discharge 

(secondfeet)

3,360 

3,210 

3,360 

3,360 

3,280

3,260 

3,140 

2,930 

2,600 

2,600 

3,210 

3,560 

3,970 

4,050 

4,210

4,210 

4,300 

4,380 

4,300 

4,360

4,050 

3,610 

3,730 

3,690 

4,300 

4,130 

4,050 

4,460 

5,060 

4,900 

4,380

116,490

974 

690 

904 

625 

709 

991 

1,210 

1,200 

967 

917

762 

732 

630 

583 

563

546 

548 

912 

700 

600 

550 

500 

452 

423 

431

439 

1,460 

1,200 

1,200 

1,200 

1,460

25, 520

Suspended sediment

Mean 

concentration 

(percent)

0.21 

.19 

.22 

.19 

.19

.16 

.12 

.12 

.13 

.12 

.15 

.16 

.20 

.20 

.21

.16 

.16 

.14 

.20 

.37

.20 

.16 

.17 

.27 

.33

.22 

.16 

.16 

.22 

.16 

.14

August

0.06 

.07 

.27 

.11 

.10

.36 

1.35 

1.31 

1.06

.55

.21 

.32 

.23 

.09 

.06

.06 

.08 

2.05 

.45 

.12

.06 

.04 

.04 

.03 

.14

.60 

1.38 

.56 

.46 

.44 

.64

Tons 

f»t 

day

19, 100 

16, 500 

20, 000 

17, 200 

16,600 

14, 200 

10,200 

9,490 

9,130 

6,420 

13, 000 

17, 400 

21,400 

21,900 

23, 900

20, 500 

20,900 

16,600 

23,200 

43, 600

21,900 

16, 500 

17, 100 

26,400 

36, 300 

24, 500 

19, 700 

21,700 

30,200 

23,600 

16,600

612,300

2,100 

1,660 

6,590 

2,450 

1,910

2/10,900 

2/66, 000 

5/42, 600 

2/26, 000 

13,600

4,320 

2/6,920 

3,910 

1,420 

944

668 

1,160 

2/53,600 

8,500 

1,940 

891 

540 

466 

343 

1,630 

7,110 

2/56, 600 

18, 100 

14, 900 

14, 300 

25,200

401, 800

June

Mean

discharge 

(secondfeet)

4,550 

4,720 

4,360 

3,660 

3,360 

3,360 

3,560 

3,690 

4,050 

4,300 

4,130 

4,300 

5,080 

5,440 

5,630

6,010 

6,200 

6,600 

6,070 

9,460

9,700 

10,200 

10,200 

9,700 

9,220 

6,960 

6,070 

7,420 

6,400 

6,010

166, 870

Suspended sediment

Mean 

concentration 

(percent)

0.14 

.15 

.12 

.11 

.12

.10 

.13 

.16 

.11 

.10 

.14 

.14 

.52 

.20 

.16 

.15 

.15 

.17 

.24 

.29

.16 

.14 

.13 

.12 

.11 

.10 

.09 

.10 

.07 

.08

Tons 

per 

day

17,200 

19, 100 

14,200 

10,900 

10,900 

9,070 

12, 600 

16, 600 

12, 000 

11,600 

15,600 

16, 300 

1/75, 300 

29, 400 

24, 300

24, 300 

25, 100 

31,200 

52, 300 

74, 100

41,900 

36, 600 

35,800 

31,400 

27, 400

24, 200 

19, 600 

20, 000 

12, 100 

13, 000

766. 300

September

1,660 

2,150 

1,650 

644 

767

767 

767 

761 

625 

904

863 

677 

677 

890 

604

515 

487 

452 

452 

444

427 

399 

391 

407 

496

419 

403 

399 

419 

526

22,126

0.66 

.73 

.41 

.20 

.09

.10 

.07 

.07 

.11 

.14

.08 

.08 

.09 

.08 

.04

.03 

.02 

.02 

.02 

.01 

.01 

.01 

.01 

.02 

.50

.15 

.02 

.02 

.04 

.20

.).................................. ...--. .-..

1 ' "

S3, 100 

2/43, 700 

16, 300 

4,560 

1,910 

2,120 

1,490 

1,460 

2,450 

3,420 

1,660 

1,690 

2,130 

1,920 

652

417 

263 

244 

244 

120

115 

106 

106 

220 

2/7, 190 

1,700 

216 

215 

453 

2/3,260

135,900

657, 176 

681, 000

I/Estimated or Interpolated

2/Sedlment discharge computed by subdividing day.

256683 O - 53 - 19
RIO GRANDE BASIN Continued 

RIO GRANDE AT OTOVI BRIDGE NEAR SAN ILDEFONSO, N

Particle-size analyses of suspended sediment, water year Octobe

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

W, in distilled water; C, chemically dispersed; M, mechan

Date

Oct 21

Mar 1

Time

8:05 a. m. 

8:40 a.m. 

8:15 a.m. 

2:05 p. m. 

2:50 p.m.

1:30 p.m. 

5:10 p.m. 

9:15 a. m. 

10:30 a. m. 

1:00 p.m. 

12:10 p.m. 

3:00 p. m.

1:40 p. m. 

4:15 p.m. 

2:15 p.m. 

1:00 p. m. 

1:00 p.m.

9:45 p. m. 

4:00 p. m. 

9:00 p.m. 

12:30 p. m. 

12:15 p.m. 

7:00 p.m. 

8:30 a. m. 

8:30 a.m.

Mean 

discharge 

( second - 

feet)

290 

362 

510 

2,080 

2,180

2,300 

2,420 

2,240 

1,810 

1,040 

1,610 

3,580

3,360 

2,600 

4,380 

4,550 

9,460

5,440 

2,480 

2,800 

3,360 

1,710 

1,700 

3,260 

1,910

Suspended 

Mean daily 

concentration 

(percent)

0.01 

.10 

.23 

.44 

.24

.17 

.20 

.20 

.16 

. 15 

.17 

.26

.21 

. 12 

.37 

.14 

.29

.15 

.23 

.91 

.97 

.26 

1.05 

1.89 

1.20

Weight of 

material 

in tube 

(grams)

0. 0585 

.3994 

.2851 

1.4094 

.6876

.4534 

.6871 

.6954 

.6263 

.3838 

.4865 

.6901

.7582 

.4722 

1. 5377 

.7761 

.2486

.3635 

.2361 

.7416 

.1782 

.2958 

.4254 

.6189 

.1858

P jfint 

0.002

19 

3 

46 

9 

1

2

2 

9 

24 

14 

14

7 

6 

17 

4 

17

26 

10 

19 

23 

20 

13 

15 

25

0.004

36 

9 

77 

15 

4

4

9 

12 

34 

19 

16

10 

8 

22 

5 

24

36 

26 

28 

35 

30 

19 

37 

39

0.008

46 

45 

91 

24 

6

6

16 

15 

41 

26 

26

13 

10 

32 

6 

33

48 

40 

45 

51 

43 

27 

51 

52

0 016

6

8

9

2

1

1

2

1

4

3

3

1

1

4

4

6

5

5

7

5

3

6

6
RIO GRANDE BASIN Continued 

RIO GRANDE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, N. 

Particle-size analyses of suspended sediment, water year October 1948 

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

W, in distilled water; C, chemically dispersed; M, mechan

Date Time'

9:15 p. m. 

8:00 p. m. 

8:30 a. m. 

2:30 p. m. 

10:30 p. m. 

9:00 a. m. 

8:45 a. m.

8:30 a. m. 

5:20 a. m. 

1:00 p.m.

Mean 

discharge 

(secondfeet)

974 

1,210 

1,200 

912 

912 

600 

1,480

1,860 

904 

498

Suspended 

Mean daily 

concen* 

(ration 

(percent)

0.08 

1.35 

1.31 

2.05 

2.05 

.12 

1.38

.66 

. 14 

.50

Weight of 

material 

in tube 

(grains)

0.2738 

.5380 

.1081 

.6709 

.2126 

.5041 

.3319

.9501 

.2935 

.1270

Percent 

0.002

21 

16 

26 

32 

27 

38 

13

2 

17 

27

0.004

34 

24 

39 

49 

43 

49 

20

4 

24 

40

0.008

52 

42 

54 

61 

62 

60 

29

5 

30 

62

0.016

6

5

7

7

7

6

4

4

8
282 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO GRANDE NEAR BERNALILLO, N. MEX.

LOCATION. At gaging station in Alameda Grant, 2 miles northwest of Sandia Pueblo,

3 miles southwest of Bernalillo, Sandoval County, 3.5 miles downstream from State

Highway 44, and 8.5 miles downstream from Jeraez Creek. 

RECORDS AVAILABLE. Water temperatures: October 1948 to September 1949.

Sediment records: November 1947 to September 1949. 

EXTREMES, 1948-49. Water temperatures: Maximum, 84°F Aug. 17-18; minimum, freezing

point on many days in winter months. 

Sediment loads: Maximum, 320,000 tons per day July 24; minimum, 15 tons per day

Sept. 23. 

EXTREMES, 1947-49. Sediment loads: Maximum, 320,000 tons per day July 24, 1949;

minimum, 0 tons per day Sept. 23, 1948. 

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Temperature (°F) ot water, water year October 1948 to September 1949 

[Once-dally temperature measurement between 2 p. m. and 6 p. m]

Day

1

2

3

4

5

6

7

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

58

69

1/52

59

62

65

64

63

62

65

69

66

1/58

59

48

--

49

48

46

43

31

37

36

38

--

66

--

56

Nov.

56

1/46

55

1/46

1/38

..

42

40

1/31

44

42

46

46

49

47

45

46

42

40

38

..

--

--

--

..

--

--

__

Dec.

--

36

35

33

36

3f

38

38

35

38

42

39

42

45

42

43

39

32

41

40

39

1/39

1/36

35

1/32

38

...

...

1/34

38

Jan.

..

1/36

32

..

"

32

32

33

1/32

32

32

39

44

38

31

32

31

32

32

35

39

1/42

42

40

41

36

36

32

32

1/31

35

Feb.

_

34

36

35

36

32

35

34

35

38

41

1/37

42

40

43

41

44

43

46

49

47

46

47

49

45

47

40

__

41

Mar.

43

42

1/39

51

48

49

45

48

38

41

38

48

53

54

53

55

51

48

53

50

..

50

42

53

53

53

50

50

48

Apr.

43

48

48

1/39

53

56

57

57

55

1/48

59

50

61

1/47

61

61

63

57

63

63

63

70

69

68

68

64

65

68

66

58

May

72

66

63

65

62

62

60

65

68

59

66

67

67

69

66

62

65

64

67

63

62

69

68

69

68

65

65

68

67

65

64

65

June

66

69

68

62

68

67

66

64

1/54

68

63

64

70

1/64

74

70

73

72

73

1/65

70

72

72

71

73

74

74

74

75

77

--

69

July

79

76

78

80

80

..

81

1/76

79

74

1/73

73

82

78

81

81

81

82

83

78

83

76

73

1/68

1/71

76

80

83

83

80

1/75

78

Aug.

1/76

80

77

78

1/72

81

-.

76

1/66

1/69

81

81

83

71

83

1/76

84

84

79

74

82

82

87

83

1/73

74

75

79

79

78

Sept.

73

73

74

75

78

81

80

1/73

77

1/71

_

75

64

69

75

77

76

1/66

79

79

81

75

77

1/64

77

_.

77

1/59

68

74

I/Reading obtained between 6 a. m. and noon.
RIO GRANDE BASIN 283

RIO GRANDE BASIN--Continued

RIO GRANDE NEAR BERNALILLO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949

Day

1 fi

23

24 

Oft

Ofl

31 ......

Potal14 

91

23-. .... 

24 ...... 

25 

26 

27 ...... 

28 ......

29 

30 ...... 

31 ......

TotalOctober

Mean 

discharge 

(secondfeet)

117 

114 

320 

190 

72

72 

80 

92 

170 

296

181 

78 

80 

82 

123 

198 

290 

208 

95 

90

104 

126 

209 

320 

488 

422 

497 

560 

376 

278 

588

6,916

Suspended sediment

Mean 

concentration 

(percent)

0.17 

.12 

.12 

.07 

.03

.03 

.03 

.04 

.07 

.06 

.08 

.02 

.02 

.02 

.69 

.23 

.06 

.06 

.03 

.04

.09 

.08 

.12 

.12 

.38 

.29 

.17 

.11 

.11 

.11 

.36

--

Tons 

per 

day

537 

369 

1,040 

359 

58

58 

65 

99 

321 

480

391 

42 

43 

44 

2,290 

1,230 

470 

337 

77 

97

253 

272 

677 

1,040 

5,010 

3,300 

2,280 

1,660 

1,120 

826 

1/8,630

33,480

January

600 

650 

650 

560 

470 

350 

400 

500 

650 

600

650 

750 

750 

700 

726

759 

726 

560 

542 

560 

610 

560 

640 

640 

660

650 

650 

671 

650 

620 

600

19, 104

2/0.08 

.07 

.11 

.08 

.09 

.06 

.05 

.09 

.08 

.08

.06 

.16 

.19 

. 14 

.12

. 14 

. 10 

.04 

,07 

.09 

.16 

. 10 

,07 

.09 

.11

.08 

.06 

.07 

.09 

.10 

.07

--

1,300 

1,230 

1,930 

1,210 

1,140 

567 

540 

1,220 

1,400 

1,300

1,050 

3,240 

3,850 

2,650 

2,350

2,870 

1,960 

605 

1,020 

1,360 

2,640 

1,510 

1,210 

1,560 

1,960

1,400 

1,050 

1,270 

1,580 

1,670 

1,130

49, 770

November

Mean 

discharge 

(secondfeet)

650 

551 

506 

479 

430

446 

446 

430 

430 

438

430 

406 

406 

479 

515 

497 

542 

551 

580 

590

580 

551 

533 

580 

620 

640 

650 

640 

600 

590

15, 786

Suspended sediment

Mean 

concentration 

(percent)

0.73 

.26 

.28 

.14 

.08

.11 

.11 

.07 

.06 

.06

.05 

.06 

.06 

.08 

.10 

. 10 

.09 

,09 

.07 

.08

.08 

.09 

.08 

.09 

.09 

.06 

.08 

.09 

.09 

.05

-

Tons 

per 

day

12,800 

3,870 

3,830 

1,810 

929

1,320 

1,320 

813 

697 

710

580 

658 

658 

1,030 

1,390 

1,340 

1,320 

1,340 

1,100 

1,270

1,250 

1,340 

1,150 

1,410 

1,510 

1,040 

1,400 

1,560 

1,460 

796

51,700

February

590 

600 

610 

630 

660 

580 

610 

620 

660 

640 

640 

610 

704 

682 

630

825 

2,200 

2,290 

2,270 

2,120 

2,290 

2,220 

2,030 

1,970 

2,060

2,270 

2,420 

2,340

36,771

2/0.08 

.08 

.08 

.14 

.12 

.11 

.05 

.08 

.11 

. 10

.09 

.12 

.13 

.13 

. 10

.28 

.56 

.38 

.39 

.36 

.29 

.24 

.24 

.24 

.24

.26 

.26 

.22

--

1,270 

1,300 

1,320 

2,380 

2,140 

1,720 

824 

1,340 

1,960 

1,730 

1,560 

1,980 

2,470 

2,390 

1,700

1/8, 680 

33,300 

23,500 

23, 900 

20,600 

17, 900 

14,400 

13,200 

12,800 

13,300

15,900 

17,000 

13, 900

254, 500

December

Mean

charge 

(second - 

feet)

620 

671 

600 

640 

640

630 

580 

630 

590 

620

600 

630 

650 

630 

650 

620 

671 

630 

620 

580

580 

640 

700 

700 

650 

600 

693 

737 

704 

600 

570

19,676

Suspended sediment

Mean

concentration 

(percent)

0.08 

.07 

.10 

.07 

.12

.09 

.08 

.08 

.07 

.06

.07 

' .06 

.05 

.06 

.06 

.10 

.07 

.09 

.07 

.06

.07 

.07 

.13 

.10 

.08 

.07 

.09 

. 10 

.11 

.08 

.08

"

Tons 

per 

day

1,340 

1,270 

1,620 

1,210 

2,070

1,530 

1,250 

1,360 

1,120 

1,000

1,130 

1,020 

878 

1,020 

1,050 

1,670 

1,270 

1,530 

1,170 

940

1,100 

1,210 

2,460 

1,890 

1,400 

1,130 

1,680 

1,990 

2,090 

1,300 

1,230

42, 930

March

2,200 

2,030 

1,840 

2,030 

2,170 

2,390 

2,220 

2,320 

2,420 

2,220 

2,060 

2,150 

2,470 

2,010 

1,920

1,800 

1,840 

2,080 

2,100 

2,320 

1,900 

1,740 

1,820 

1,820 

1,880

2,100 

2,030 

1,820 

1,880 

1,880 

1,190

62,650

0.23 

.21 

.19 

.18 

.22 

.26 

.30 

.26 

.26 

.25 

.24 

.19 

.26 

.26 

.18

.18 

.19 

.26 

.19 

.24 

.20 

.18 

2/. 15 

.18 

.16

.16 

.17 

. 10 

2/. 14 

.16 

.10

--

13,700 

11, 500 

9,440 

9,870 

12,900 

16, 800 

18, 000 

16,300 

17,000 

15,000 

13,300 

11,000 

17,300 

14, 100 

9,330

8,750 

9,440 

14,600 

10, 800 

15,000 

10,300 

8,460 

7,370 

8,850 

8,120

9,070 

9,320 

4,910 

7,110 

8,120 

3,210

349,000

i/Sediment discharge computed by subdividing day. 

2/Estimated or Interpolated.
284 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO GRANDE NEAR BERNALILLO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949- -Continued

Day

13

10

19

on

22

O4

25

27

28

31

Total18

21 

22 

23 

24 

25 

26 

27 

28 

29 ------ 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

1,620 

1,970 

2,220 

1,920 

1,300 

782 

748 

806 

1,030 

1,350

1,180 

929 

942 

1,320 

1,700

1,720 

1,800 

1,720 

1,780 

1,530

1,740 

1,970 

1,900 

2,600 

2,660 

3,340 

3,400 

3,180 

3,280 

3,370

55, 807

Suspended sediment

Mean . 

concentration 

(percent)

0.14 

.23 

.21 

.18 

. 12 

.10 

.14 

.14 

.25 

.32

.17 

* .19 

.23 

.40 

.51

.47 

.30 

.31 

.28 

.24

.22

.27 

.25 

.38 

.29

.30 

.31 

.26 

.34 

.31

Tons 

per 

day

6,120 

12,200 

12,600 

9,330 

4,210 

2,110 

2,830 

3,050 

6,950 

11,700

5,420 

4,770 

5,850 

14,300 

23,400

21,800 

14,600 

14,400 

13,500 

9,910

10,300 

14,400 

12, 800 

26,700 

20, 800

27,100 

28, 500 

22,300 

30,100 

28, 200

420, 200

July

5,440 

4,780 

4,580 

4,020 

3,340

3,150 

2,820 

2,770 

2,470 

2,520

2,970 

2,320 

2,670 

4,030 

2,820 

2,100 

2,080 

1,860 

1,800 

1,720

1,220 

2,190 

3,960 

3,500 

1,740 

1,580 

1,210 

1,060 

890 

1,010 

1,220

79,840

0.28 

.25 

.20 

.13 

. 16

.12 

.14 

.10 

.11 

.11 

.58 

1.18 

1.41 

2.32 

.97 

.29 

.19 

.17 

.20 

.23

.38 

2.81 

2.30 

2.98 

1.61 

1.68 

.72 

.35 

.20 

.32 

.77

41,100 

32,300 

24,700 

14, 100 

14,400

10, 200 

10, 700 

7,480 

7,340 

7,480

46, 500 

1/74, 700 

J/ 104,000 

1/266,000 

73, 900 

16, 400 

10, 700 

8,540 

9,720 

10,700

12, 500 

1/176,000 

246, 000 

1/S20.000 

75,600

71,700 

23,500 

10,000 

4,810 

1/14,300 

25,400

1,771,000

May

Mean

charge 

(secondfeet)

3,640 

3,150 

3,000 

3,180 

3,210 

3,210 

3,030 

2,970 

2,520 

2,390

2,910 

3,770 

3,910 

3,770 

3,950

4,060 

4,090 

4,020 

4,200 

3,910

3,880 

3,980 

3,000 

3,370 

3,210 

3,700 

3,530 

3,670 

4,820 

4,860 

4,160

111,070

Suspended sediment

Mean 

concentration 

(percent)

0.37 

.26 

.21 

.26 

.26 

.24 

.24 

.24 

.20 

.20

.21 

.30 

.30 

.27 

.31

.31 

.32 

.25 

.28 

.21

.27 

.28 

.24 

.22 

.25

.30 

.24 

.22 

.32 

.30 

.22

--

Tons 

per 

day

36,400 

22, 100 

17, 000 

22, 300 

22,500 

20,800 

19, 600 

19,200 

13,600 

12, 900

16, 500 

30,500 

31,700 

27,500 

33, 100

34, 000 

35,300 

27,100 

31,800 

22, 200

28,300 

30,100 

19,400 

20,000 

21,700

30,000 

22, 900 

21,800 

41,600 

39,400 

24, 700

796,000

August

854 

704 

741 

1,320 

640

422 

916 

1,510 

1,000 

818

630 

488 

446 

693 

308 

224 

156 

126 

386 

168

390 

438 

117 

104 

85

98 

184 

1,120 

994 

704 

794

17,575

0.33 

.38 

.73 

3.31 

2.22

.39 

Z/.69 

1.86 

2.31 

1.78

.83 

.40 

.37 

1.04 

.14 

.06 

.10 

.41 

1.12 

2/. 58

.49 

.20 

.06 

.05 

.04

.10 

2/.30 

1.49 

.53 

.28 

.25

-

7,610 

7,220 

1/26,300 

1/148,000 

38,400

4,440 

17, 100 

75, 800 

62,400 

39,300

14, 100 

5,270 

4,460 

19,500 

1,160 

363 

421 

1,390 

11,600 

2,630

5,160 

2,370 

190 

140 

92

265 

1,490 

45, 100 

14, 200 

5,320 

5,360

567,200

Tune

Mean

charge 

(secondfeet)

4,020 

4,310 

4,540 

3,440 

3,340 

3,090 

3,120 

3,370 

3,880 

3,840

5,290 

4,580 

4,310 

5,400 

5,840

5,800 

5,800 

6,560 

7,340 

8,200

9,110 

9,440 

9,760 

8,800 

8,800

8,490 

7,620 

7,900 

6,310 

6,080

178,380

Suspended sediment

Mean 

concentration 

(percent)

0.22 

.22 

.21 

.13 

.17 

.16 

.14 

.18 

.18 

.16

1.54 

.35 

.26 

.41 

.22

.29 

.23 

.27 

1.00

.55

.47 

.42 

.35 

.44 

.34

.28 

.27 

.22 

.22 

.21

Tons 

per 

day

23, 900 

25, 600 

25, 700 

12, 100 

15,300 

13,300 

11,800 

16,400 

18, 900 

16, 600 

1/259,000 

43, 300 

30,300 

59, 800 

34, 700

45,400 

36,000 

47, 800 

198, 000 

122, 000

116,000 

107,000 

92, 200 

105,000 

80, 800

64, 200 

55,500 

46, 900 

37,500 

34,500

1, 796, 000

September

1,120 

1,260 

1,320 

1,290 

500

383 

320 

300 

350 

446

770 

726 

414 

430 

383 

229 

172 

376 

334 

123

85 

66 

56 

62 

260 

284 

98 

68 

1,140 

1,370

14,735

0.52 

.72 

.75 

.42 

.18

.18 

.12 

.19 

.22 

.14

2/.30 

.18 

.15 

.35 

.20 

.05 

.05 

.08 

.04 

.02

2/.02 

.02 

.01 

.02 

.10 

.16 

2/. 16 

.16 

2.40 

4.73

15,700 

24,500 

26, 700 

14, 600 

2,430

1,860 

1,040 

1,540 

2,080 

1,690

6,240 

3,530 

1,680 

4,060 

2,070 

309 

232 

812 

361 

66 

46 

36 

15 

33 

702

1,230 

423 

294 

1/161,000 

1/191,000

466, 300

Total discharge for year (second-foot-days) 

Total load for year (tons) -

618,310

6,598,000

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE BASIN Continued 

RIO GRANDE NEAR BERNALILLO, N. HEX.--Conti

Particle-size analyses of suspended sediment, water year October 1

(Methods of analysis: B, bottom withdrawal tube; D, decantation; p, pipett

W, in distilled water; C, chemically dispersed; M, mechanic

Date

Oct 1 1948

Dec 1

Tan in 1949

Feb 2

Mav 10

Time

3:05 p.m. 

1:30 p.m. 

3:45 p.m. 

3:30 p. m. 

5:30 p.m. 

3:30 p.m.

2:30 p. m. 

4:00 p.m. 

5:30 p. m. 

1:30 p. m. 

2:30 p. m. 

2:00 p. m.

1:10 p.m. 

1:30 p.m. 

4:45 p.m. 

3:05 p.m. 

1:25 p.m. 

11:30 a.m. 

6: 10 p.m. 

1:15 p.m.

1:55 p.m. 

8:35 a.m. 

6:25 a.m. 

7:05 a.m. 

4:00 p.m. 

5:30 p.m.

Mean 

discharge 

(secondfeet)

117 

90 

650 

438 

590 

590

620 

620 

580 

600 

560 

650

600 

640 

825 

2,120 

2,200 

2,220 

2,320 

1,880

1,620 

1,350 

1,530 

3,640 

2,390 

3,910

Suspended 

Mean daily 

concentration 

(percent)

0. 17 

.04 

.73 

.06 

.08 

.05

.08 

.06 

.06 

.08 

.09 

.08

.08 

.10 

.28 

.36 

.23 

.25 

.24 

.16

.14 

.32 

.24 

.37 

.20 

.21

Weight of 

material 

in tube 

(grams)

0.9543 

.1615 

.7199 

.2646 

.8128 

.2002

.3269

. 1396 

.1709 

.3533 

.4280

.1818 

.2593 

1. 2679 

1.3180 

.6534 

.9237 

.6938 

.6901

.9038 

.4517 

1. 1645 

.9373 

.8826 

.6484

Percent f

0.002

2 

6 

2 

1 

9 

5

8 

11 

2

4

1 

3

3 

0 

1 

3

1 

22 

12 

9 

6 

13

0.004

4 

18 

5 

10 

18 

10

15 

18 

11 

7 

2 

6

10

7 

4 

6 

7

3 

29 

16 

12 

8 

16

0.008

6 

49 

12 

25 

25 

14

22

26 

20 

14 

4 

9

6 

14 

11 

21 

13 

11

5 

35 

20 

15 

10 

22

0.016

87 

66 

67 

37 

35 

23

31 

36 

33 

24 

6 

13

12 

19 

16 

31 

21 

15

8 

41 

24 

19 

12 

30
BIO GSAHDE BASIN Continued 

BIO QUBDE BEAK mmui.fiJ.n. H. HEX. Cont

Particle-size analyses of suspended sediment, water year October 1948 t

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

W; in distilled water; C, chemically dispersed; M, mechanic

Date Time

7:00 p. m. 

12:00 m. 

635a.m. 

12:10 p. m. 

3:50 p. m. 

8:05 p.m.

11:00 a. m. 

9:30 a. m. 

9:00 a.m. 

9dOa.m. 

9dOa.m. 

9:00 a.m. 

10:15 a. m.

11:00 a.m. 

9:00 a. m. 

6:45 a. m.

llean 

discharge 

(secondfeet)

4,020 

4,310 

3,840 

5,290 

7,340 

8,200

5,440 

2,520 

2,320 

1,720 

854 

818 

383

1,120 

446 

123

Suspended 

llean daily 

concentration 

(percent)

0.22 

.22 

.16 

1.54 

1.00 

.55

.28 

.11 

1.18 

.23 

.33 

1.78 

1.12

.52 

.14 

.02

Weight of 

material 

in tube 

(grams)

0.9274 

.7416 

1.1873 

1.2161 

.6278 

.7430

.8651 

.2712 

.6889 

.5643 

.8712 

.9518 

1.1317

2.1046 

.2531 

.0757

Percent f

0.002

3

4 

2 

21 

32 

11

4 

6 

23 

14 

18 

14 

8

12 

11 

26

0.004

4 

5 

3 

32 

46 

16

6 

8 

35 

19 

27 

55 

47

14 

19 

40

0.008

6 

8

44 

58 

21

8 

10 

47 

24 

36 

71 

59

23 

29 

49

0.016

9 

12

4 

57 

68 

26

11 

11 

61 

30 

46 

85 

72

34 

41 

55
RIO GRANDE BASIN 287

RIO GRANDE BASIN Continued 

RIO GRANDE NEAR BERNARDO, N. HEX.

LOCATION. At gaging station at bridge on U. S. Highway 60, 2J miles east of Bernardo,

Socorro County, and 34 miles upstream from Rio Puerco. 

DRAINAGE AREA. 19,230 square miles (includes 2,940 square miles in closed basin in

northern part_of San Luis Valley, Colo.).

RECORDS AVAILABLE. Sediment records: October 1947 to September 1949.

EXTREMES, 1948-49. Sediment loads:

8 tons per day October 24, 25. 

EXTREMES, 1947-49. Sediment loads:

Maximum, 240,000 tons per day July 24; minimum,

.._. Maximum, 240,00 tons per day July 24, 1949: 

minimum, 0 tons per day October 4, 5, 1947. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in 

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

10 ------

13

1A

18

19 .... 

20 

21 

22 

23 - 

24 ----- - 

25 ----- -

28 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

103 

95 

86 

75 

65

102 

92 

53 

62 

62

63

58 

61 

71 

104

85 

83 

100 

111 

61 

45 

39 

36 

30 

28 

68 

92 

124 

160 

203 

200

2,617

Suspended sediment

Mean 

concentration 

(percent)

0.13 

.08 

.07 

.04 

.03

.05 

.04 

.02 

.03 

.03

.02 

.02 

.03 

.03 

.06

.03 

.02 

.03 

.04 

.03

.01 

.01 

.01 

.01 

.01 

.03 

.08 

.12 

.11 

.14 

.12

--

Tons 

per 

day

362 

205 

163 

81 

53

138 

99 

29 

50 

50

34

31 

49 

58 

168

69 

45 

81 

120 

49 

12 

11 

10 

8 

8 

55 

199 

402 

475 

767 

648

4,530

November

Mean

charge 

(secondfeet)

304 

785 

388 

429 

484

473 

462 

484 

434 

496

484 

508 

508 

508 

508

558 

597 

624 

638 

666

696 

666 

638 

610 

610 

652 

681 

666 

696 

681

16, 984

Suspended sediment

Mean 

concentration 

(percent)

0.14 

1.00 

.72 

.55 

.38

.26 

.37 

.35 

.20 

.18

.22 

.19 

.17 

.39 

.33 

.21 

.20 

.26 

.41 

.19

.20 

.37 

.42 

.36 

.35 

.34 

.43 

.31 

.08 

.08

--

Tons 

per 

day

1,150 

1/21, 700 

7,540 

6,370 

4,970

3,320 

4,620 

4,570 

2,610 

2,410

2,870 

2,610 

2,330 

5,350 

4,530

3,160 

3,220 

4,380 

7,080 

3,420

3,760 

6,650 

7,230 

5,930 

5,760 

5,990 

7,910 

5,570 

1,500 

1,470

150, 000

December

Mean 

discharge 

(secondfeet)

666 

638 

652 

652 

666

681 

666 

652 

638 

638

652 

638 

666 

681 

666

666 

711 

741 

741 

726

741 

696 

666 

726 

756 

790 

773 

741 

726 

756 

711

21,519

Suspended sediment

Mean 

concentration 

(percent)

0.28 

.29 

.31 

.41 

.36

.40 

. 18 

.20 

.22 

.22

.32 

.34 

.30 

.26 

.44

.30 

.40 

.35 

.34 

.33

.33 

.28 

.37 

.21 

.19 

.24 

.22 

.32 

.20 

.19 

.29

--

Tons 

per 

day

5,030 

5,000 

5,460 

7,220 

6,470

7,350 

3,240 

3,520 

3,790 

3,790 

5,630 

5,860 

5,390 

4,780 

7,910

5,390 

7,680 

7,000 

6,800 

6,470

6,600 

5,260 

6,650 

4,120 

3,880 

5,120 

4,590 

6,400 

3,920 

3,880 

5,570

169, 800

I/Sediment discharge computed by subdividing day.
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO GRANDE NEAR BERNARDO, N. HEX.--Continued

Suspended sediment, water year October 1948 to September 1949--Continued

Day

1 

2 

3 ______

4 

5 

6 

7 - 

------

9 

10 

11 

12 

13 

14 

15 

16 

17 

1 10------ o

19 

On 4U- ---

21 

22------

23------

24 

25------

26------

27 

net £O-"-' 

29------

OU------ qn

31 

Total -

1 

2 

3 

4 

5 

6 

7 

------

9-_____

10 

11 

12 

13 

14 

15 

16 

17 

18 

1Q_ __ ___

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

681 

638 

652 

652 

632

430 

398 

398 

429 

758

711 

681 

860 

900 

726 

726 

741 

711 

638 

624 

652 

681 

741 

726 

711 

808 

825 

773 

756 

726 

696

21,081

Suspended sediment

Mean 

concentration 

(percent)

0.28 

. 11 

. 11 

.13 

.15

.08 

.08 

.08 

.16 

.37

.13 

.13 

.32 

.66 

.30 

.26 

.31 

.44 

.18 

.32 

.27 

.34 

.23 

.22 

.22

.26 

.14 

.28 

.31 

.29 

.26

Tons 

per 

day

5,150 

1,890 

1,940 

2,290 

2,560 

929 

860 

860 

1,850 

1/7, 780

2,500 

2,390 

7,430 

16,000 

5,880 

5,100 

6,200 

8,450 

3,100 

5,390 

4,750 

6,250 

4,600 

4,310 

4,220

5,670 

3,120 

5,840 

6,330 

5,680 

4,890

144, 200

April

1,250 

1,800 

2,090 

1,920 

1,760

1,010 

650 

500 

4£4 

696

1,360 

683 

558 

520 

795

1,350 

1,620 

1,410 

1,100 

1,210 

1,120 

1,200 

1,140 

1,820 

2,220 

1,830 

2,160 

2,410 

2,150 

2,600

41,416

0.28 

.34 

.34 

.37 

.32

.30 

.24 

.20 

.22 

.36

.40 

.32 

.28 

.24 

.28

.42 

.52 

.44 

.41 

.30 

.32 

.35 

.27 

' .44 

.39 

.36 

.36 

.38 

.32 

.30

-

9,450 

16,500 

19,200 

19,200 

15,200

8,180 

4,210 

2,700 

2,870 

6,770

14,700 

5,900 

4,220 

3,370 

6,010

15,300 

" 22,700 

16,800 

12,200 

9,800 

9,680 

11,300 

8,310 

21, 600 

23,400 

17,800 

21,000 

24, 700 

18, 600 

21,100

392,800

February

Mean

discharge 

(secondfeet)

597 

584 

610 

681 

696

696 

666 

652 

597 

624

638 

638 

638 

666 

726 

741 

1,030 

1,990 

1,970 

1,960 

1,980 

2,010 

2,050 

2,100 

2,150

2,110 

2,120 

2,130

34,050

Suspended sediment

Mean 

concentration 

(percent)

0.18 

.19 

.26 

.22 

.29

.21 

.24 

.21 

.16 

.30

. 18 

.29 

.21 

.28 

.19 

.28 

.37 

.59 

.48 

.43

.36 

.30 

.30 

.29 

.29

.33 

.34 

.34

Tons 

per 

day

2,900 

3,000 

4,280 

4,050 

5,450

3,950 

4,320 

3,700 

2,580 

5,050

3,100 

5,000 

3,620 

5,030 

3,720 

5,600 

1/13,200 

31,700 

25, 500 

22,800 

19,200 

16,300 

16,600 

16,400 

16,800

18, 800 

19,500 

19,600

301,800

May

3,500 

3,020 

2,260 

2,560 

2,540

2,530 

2,730 

3,090 

2,630 

1,980

2,630 

3,800 

3,960 

3,890 

4,020 

4,380 

4,070 

3,920 

3,890 

3,400 

3,340 

3,780 

3,390 

2,550 

2,580 

2,940 

3,450 

3,160 

3,890 

4,090 

3,860

101,830

0.38 

.43 

.30 

.30 

.28

.31 

.28 

.30 

.28 

.28

.28 

.26 

.31 

.33 

.30

.32 

.30 

.32 

 33 

.30 

.32 

.42 

.36 

.36 

.27 

.36 

.37 

.34 

.38 

.39 

.38

-

35, 900 

35, 100 

18,300 

20, 700 

19, 200 

21,200 

20, 600 

25,000 

19,900 

15,000

19, 900 

26,700 

33, 100 

34,700 

32, 600 

37,800 

33,000 

33,900 

34, 700 

27,500 

. 28, 900 

42, 900 

33,000 

24,800 

18,800 

28, 600 

34,500 

29,000 

39,900 

43, 100 

39,600

907,900

March

Mean

discharge 

( second - 

feet)

2,130 

2,080 

2,190 

2,040 

2,170

2,300 

2,470 

2,480 

2,310 

2,340

2,120 

2,060 

2,320 

2,130 

1,740 

1,620 

1,550 

1,540 

1,450 

1,720 

1,990 

,770 

,530 

,950 

,840

,390 

,310 

,530 

,250 

2,190 

1,620

59, 130

Suspended sediment

Mean 

concentration

(percent)

0.36 

.40 

.52 

.38 

.36

.34 

.32 

.35 

.39 

.37

.44 

.38 

.34 

.34 

.40 

.32 

.34 

.30 

.32 

.40 

.42 

.31 

.36 

.38 

.38

.34 

.30 

.29 

.28 

.33 

.29

~

Tons 

per 

day

20, 700 

22, 500 

30, 700 

20,900 

21, 100

21, 100 

21,300 

23,400 

24, 300 

23,400

25, 200 

21,100 

21,300 

19, 600 

18, 800 

14, 000 

14, 200 

12, 500 

12,500 

18, 600 

22, 600 

14, 800 

14, 900 

20,000 

18,900

12,800 

10, 600 

12, 000 

9,450 

19, 500 

12, 700

575,400

June

3,780 

3,410

3, 600 

3,350 

3,200

2,690 

2,170 

2,540 

2,700 

2,810

3,980 

4,620 

3,750 

3,960 

4,620

4,550 

4,620 

4,890 

6,470 

7,870 

7,900 

8,500 

8,560 

9,810 

9,110 

9,110 

8,450 

7,160 

6,710 

5,780

160, 670

0.36 

.34 

.27 

.32 

.28

.30 

.28 

.24 

.26 

.26

.60 

.65 

.34 

.36 

.38

.34 

.37 

.37 

.44 

.83 

.59 

.60 

.44 

.44 

.40 

.42 

.38 

.39 

.38 

.32

--

36, 700 

31,300 

26, 200 

28,900 

24, 200

21,800 

16,400 

16, 500 

19, 000 

19, 700

64, 500 

81,100 

34, 400 

38, 500 

47,400 

41,800 

46,200 

48, 900 

76, 900 

176,000 

126,000 

138,000 

102,000 

117,000 

98, 400 

103, 000 

86, 700 

75, 400 

68, 800 

49,900

1,862,000

I/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN 289

RIO GRANDE BASIN Continued

RIO GRANDE NEAR BERNARDO, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 ......

3

Q

12

1 4

1 Q

19

on

21

23

24

9ft

27

29

Of)

TotalJuly

Mean 

discharge 

(secondfeet)

4,770 

4,240 

3,950 

3,760 

3,060

2,520 

2,550 

2,150 

1,940 

2,280

2,240 

2,470 

2,840 

2,790 

3,490 

2,200 

2,120 

1,930 

1,480 

1,460 

1,320 

1,780 

2,680 

4,090 

2,090

1,870 

1,230 

980 

805 

679 

724

72,488

Suspended sediment

Mean 

concentration 

(percent)

0.34 

.26 

.42 

.32 

.29

.27 

.24 

.30 

.24 

. 26

.23

.40 

2/.6S 

.89 

1.51 

1.01 

.69 

.41 

.28 

.29 

.28 

.58 

1.69 

2.17 

2.00 

1.08 

.74 

.74 

.54 

.28 

.24

Tons 

per 

day

43,800 

29,800 

44, 800 

32,500 

24, 000

18,400 

16,500 

17,400 

12,600 

16, 000

13,900 

26, 700 

49,800 

67, 000 

142,000 

60, 000 

39, 500 

21,400 

11,200 

11,400 

9,980 

1/30,400 

122,000 

240, 000 

113,000

54, 500 

24, 600 

19, 600 

11,700 

5,130 

4,690

1,334,000

Total discharge for year (second-foot-day 

Total load for year (tons) -- 

August

Mean

charge 

(second - 

feet)

860 

681 

520 

905 

1,000

558 

532 

584 

1,200 

1,300

1,000 

500 

350 

300 

350 

300 

278 

254 

222 

196 

246 

222 

196 

164 

134

109 '92 

83 

89 

93 

109

13,427

Suspended sediment

Mean 

concentration 

(percent)

0.36 

.33

.27 

.70 

1.57

.90 

.54 

2/. 57 

.80 

1.23 

.91

y. 62

2/. 35 

.28 

.24 

.26 

.21 

.30 

.07 

.06 

.23 

.36 

.38 

.16 

.06

.06 

.02 

.04 

.04 

.06 

.06

--

Tons 

per 

day

8,360 

6,070 

3,790 

1/29,200 

1/45, 200

13,600 

7,760 

8,990 

25,900 

43, 200 

24, 600 

8,370 

3,310 

2,270 

2,270 

2,110 

1,580 

2,060 

420 

318 

1,530 

2,160 

2,010 

708 

217

177 

50 

90 

96 

151 

177

246, 700

September

Mean

charge 

(secondfeet)

106 

132 

349 

440 

520 

388 

322 

262 

262 

304

349 

408 

398 

418 

462 

" 418 

368 

331 

340 

286 

262 

222 

176 

110 

97 

81 

78 

75 

79 

140

8,183

Suspended sediment

Mean 

concentration 

(percent)

0.06 

2/. 18 

.39 

.62 

.59 

.32 

.21 

.08 

.10 

.16 

.62 

.27 

.27 

.22 

.20 

.12 

.13 

2/. 12 

.08 

.08 

.08 

.04 

.06 

.02 

.02

.02 

.02 

.02 

.02 

29

Tons 

per

day

172 

642 

3,670 

7,370 

8,280

3,350 

1,830 

566 

707 

1,310

5,840 

2,970 

2,900 

2,480 

2,490 

1,350 

1,290 

1,070 

734 

618 

566 

240 

285 

59 

52

44 

42 

40 

43 

1,100

52, 110

. - 6,141,000

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE BASIN Continued 

RIO GRANDE NEAR BERNARDO, N. HEX. C

Particle-size analyses of suspended sediment, water year Octob

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

W, in distilled water; C, chemically dispersed; M, mechan

Date

Oct 20

.Dec 10

iniv y.n ..... .............

Time

5:00 p.m. 

9:00 a. m. 

9:00 a. m. 

5:00 p. m. 

4:00 p. m.

2:00 p. m. 

3:00 p. m. 

8:00 a.m. 

11:00 a.m. 

9:00 a. m. 

1:30 p. m.

7:00 p. in. 

1:00 p.m. 

10:00 a. m. 

9:00 a. m. 

4:00 p. m. 

9:00 a. m.

9:00 a. m. 

9:00 a. m. 

8:00 a.m. 

8:00 a.m. 

8:00 a. m. 

12:50 p. m.

5:00 p. a-,. 

12:00 m. 

4:00 p. m. 

4:00 p. m. 

5:00 p. m . 

8:00 a.m.

Mean 

discharge 

(secondfeet)

103 

62 

61 

304 

666

666 

638 

726 

681 

758 

624

1,030 

1,990 

1,960 

2,130 

2,340 

1,720

1,250 

698 

1,210 

3,500 

1,980 

3,340

3,700 

3,600 

2,700 

7,870 

4,770 

2,280 

1 4RO

Suspended 

Mean daily 

concentration 

(percent)

0.13 

.03 

.03 

.14 

.19

.28 

.22 

.33 

.28 

.37 

.38

.37 

.59 

.43 

.36 

.37 

.40

.28 

.36 

.30 

.38 

.28 

.32

.36 

.27 

.26 

.83 

.34 

.26 

99

Weight of 

material 

in tube 

(grams)

0. 3376 

.0882 

.1109 

.5036 

.6760

.6545 

.6499 

1. 1230 

.6405 

.9744 

.9993

1.4492 

.5771 

1. 1527 

1. 6272 

.3610 

.6493

1. 0634 

.9829 

.2439 

.4480 

.2724 

1. 0922

1. 6022 

1.2630 

1.0872 

.9966 

1.3331 

1. 1288 

1 n4(S3

Percent 

0.002

46 

0 

0 

0 

0

0 

1 

0 

0

4 

1 

7 

0 

14 

10

6 

8 

23 

12 

10 

7

5 

6 

7 

23 

4 

3 

12

0.004

68 

27 

17 

4 

3

3 

5 

3 

3

4 

7 

8 

2 

18 

15

10 

11 

28 

16

9

7 

9 

10 

35 

6 

4 

IS

0.008

84 

48 

34 

26 

19

16 

16 

9 

9

14 

24 

25 

9 

22 

19

12 

14 

35 

20 

12 

12

9 

11 

13

44 

8 

5

OO

0.016

6

5

5

4

2

2

1

1

2

4

3

1

2

2

1

1

4

2

1

1

1

1

1

5

1

2
1

49

2948

1425

24

oc

gf-t

OA

rjc
RIO GRANDE BASIN Continued 

RIO GRANDE AT SAN ACACIA, N. MEX.

LOCATION.--At San Acacia diversion dam,0.2 mile above gaging station on Rio Grande at San Acacia; 

1.8 miles downstream from Rio Salado.

DRAINAGE AREA. 26,770 square miles (includes 2,940 square miles in closed basin in northern part 

RECORDS AVAILABLE. Chemical analyses: July to December 1937, March 1939 to September 1949.

Water temperatures: October 1947 to September 1949.

Sediment records: July 1946 to September 1949. 

EXTREMES,1948-49.--Dissolved solids: Maximum, l,160parts per million Nov. 1,3: minimum, 241 parts 

Total hardness: Maximum, 506 parts per million Nov. 1,3; minimum, 142 parts per million June 21

Water temperatures: Maximum, 83°F July 17; minimum, freezing point on several days in November, 

Sediment loads: Maximum, 425,000 tons per day July 24; minimum, 5 tons per day Aug. 30. 

EXTREMES, 1K37,39-49. Dissolved solids: Maximum, 2,470 parts per million July 18, 1946; minimum, 

Total hardness: Maximum, 1,190 parts per million Aug. 13-14, 1945; minimum, 101 parts per milli

Water temperatures (1947-49): Maximum, 87°F July 11, 1948; minimum, freezing point on several d

Sediment loads (1946-49): Maximum, 1,570,000 tons per day Aug. 17, 1947; minimum, 0 tons per da

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

flow in Socorro Main Canal North. Records of specific conductance of daily samples available i

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-2, 4-10, 194t 

Oct. 11-16, 18-20- 

Oct. 21, 25-31 

Nov. 11-15, 17,

Jan. 2-10, 1949 

Jan. 11-15, 17-20 

Feb. 11-12, 14-16,

Feb. 21-22, 24-27 - 

Mar. 1-7, 9-10 

Mar. 11-14, 16-20- 

Mar. 21, 23-31 - 

I/Reported boron c

Mean 

discharge 

(secondfeet)

20.7 

42.0 

42.8 

709 

537

572 

639

666 

712 

717 

539 

765 

720

676

1,034 

2,186 

2,253 

1,828 

1,571 

mcentration

PH

7.8 

7.9 

8.0 

7.7 

7.7

7.7 

7.7

7.7 

7.8 

7.8 

7.9 

8.2 

8.3

7.9

7.9 

7.9 

7.7 

7.8 

7.8 

is less

Specific 

conductance 

(micromhos at 

25" C )

950 

938 

978 

1,610 

724

679 

637

618 

620 

594 

640 

589 

582

579

565 

500 

487 

492 

504 

than figure

Silica 

(Si02)

39 

35 

33 

18 

29

30 

29

28 

36 

38 

35 

29 

31

32

31 

25 

25 

23 

25 

ndicatec

Iron

(Fe)

0.01 

.02 

.03

.02

.02 

.02

.03 

.09 

.02 

.04 

.02 

.02

.03

.03 

.03 

.03 

.03 

.03 

,.

Calcium 

(Ca)

83 

83 

86 

152 

69

68 

62

65 

63 

59 

63 

59 

57

56

55 

50 

52 

53 

54

Magnesium 

(Mg)

17 

17 

20 

31 

15

16 

15

14 

11 

11 

12 

10 

11

11

11 

11 

10 

10 

11

Sodium 

(Na)

99 

98 

105 

180 

67

58 

53

50 

54 

52 

55 

50 

50

49

46 

39 

36 

34 

37

Potassium 

(K)

4.4 

4.4 

7.2

4.6

. 5.0 

4.4

4.4 

5.4 

3.0 

3.6 

3.8 

3.0

5.0

6.8 

6.6 

4.6 

4.8 

4.2

Bicarbonate 

(HCOS)

230 

230 

236 

220 

207

205 

192

192 

197 

187 

195 

186 

181

180

174 

140 

156 

153 

152

Sulfate 

(S0«)

231 

223 

242 

605 

155

142 

124

123 

115 

111 

127 

107 

106

107

104 

110 

96 

99 

105

Chlorid

(Cl)

5

5

5

63 

3

30 

30

28 

29 

28 

30 

2

29

27

29 

19 

17 

17 

18
Apr. 11-15, 17-19 - 

Apr. 21-25, 27-28,

May 12, 14-20 

June 1-2, 4, 6-10 

June 21-26, 28-30 - 

July 1, 4-6, 8, 10 -

Jnly 24-27, 29-31 

Aug. 2-6, 8-10 

Aug. 11-16, 18-20 -

Sept. 1-5, 7-8 

Sept. 21-28, 30 

Weighted average -

988

1 7flA

3,591

3,006 4

9QA

7,715 

3,267

2 

A 7 A

1,817

885 

404

246 

448

171

1,493

7.9

8.0 8 (\

8.1 7 O

8.0 

7.9 7 fl

7.7

7.7 

7.7. 7 O

7.8 7 fl

7.7"

662

468

437

396

372 

446

831

1,010 

928

800

7Qft

868

519

90

27

21

21

27 

28

24

22 

27

29

no

30

25

.01

.02

.02

.01 

.01

.02

.02 

.12

.01

.01

0.02

65

49

CO

46

46 

51

89

106 

92

flfl

78

80

58

128

O

8.3

7.8

6.7 

8.1 

12

15

20 

17

14 

14

15

9.9

55

no

29

23

20 

31

71

87 

88

no

74

87

37

3.2 2 O

2.6 3 9

3.0

4.2 

5.4

3.4

4.0 

4.2

7.4

6.4

4.2

193

151

137

153 

161

990

237

251 

233

213

999

226

172

128

75

no

68

49

77

206

285 

245

990

184

200

98

n

3

1 

1

1

1

14

26

32 

35

38

09

44

18

I/Reported boron concentration is less than figure indicated.
RIO GRAHDE BASIN Continued 

RIO GRANDE AT SAB ACACIA, N. HEX. C

Temperature (°F) of water, water year October 1948 

[Once-daily temperature measurement at approx

Day

1Q

91

99

23

29

30

October November

"

December

35

38

35

January

32

38

February

33

35

40

36

37

33

~~

March

36

--

43

42

41

~~

A

I/Reading obtained between noon and 6 p. m.
RIO GRANDE BASIN 

RIO GRANDE BASIN Continued 

RIO GRANDE AT ACACIA, N. HEX.--Continued 

Suspended sediment, water year October 1948 to September 1949

295

Day

IS17 

1 fi

19 -

9 A

9tt

na

Total3--

Q

20

91

24 ----- - 

25 ------ 

26 ...... 

27 ...... 

28 ------ 

29 

30 ...... 

31 

TotalOctober

Mean

discharge 

(secondfeet)

51 

42 

23 

11 

9 

8 

22 

17 

12 

12

12 

12 

10 

55 

191 

23 

16 

13 

16 

70

16 

12 

10 

10 

11 

11 

23 

40 

90 

102 

146

1.098

Suspended sediment

Mean 

concentration 

(percent)

1.28 

.55 

2/.S9 

.20 

. 18

.11

.08 

.07 

.08 

.07

.06 

.07 

.06 

.61 

2.62

.17 

.12 

.10 

.09 

1.14

.25 

.07 

.06 

.06 

.19 

.29 

.24 

.09 

.16 

.18 

.64

Tons 

per 

day

1/2, 140 

624 

242 

59 

44 

24 

48 

32 

26 

23

19 

23 

16 

1/7,410 

1/13,500

106 

52 

35 

44 

1/3,960 

108 

23 

16 

16 

56 

86 

149 

97 

389 

496 

2,520

32,380

January

684 

632 

694 

700 

674 

360 

331 

391 

346 

574

758 

705 

884 

945 

850

736 

726 

694 

716 

632 

642 

674 

747 

663 

694

736 

792 

792 

760 

740 

684

20, 956

0.22 

.22 

.21 

.18 

.30 

1.04 

.43 

.78 

.31 

.14

.17 

. 18 

.21 

.21

.44

.17 

.48 

.56 

.59 

.76 

.53 

.42 

.40 

.34 

.34

.42 

.30 

.51 

.48 

1.02 

.51

--

4,060 

3,750 

3,930 

3,400 

5,460 

10, 100 

3,840 

8,230 

2,900 

2,170 

3,480 

3,430 

5,010 

5,360 

10, 100 

3,380 

9,410 

10, 500 

11,400 

13,000 

9,190 

7,640 

8,070 

6,090 

6,370 

8,350 

6,420 

10,900 

9,85% 

20,400 

9,420

225,600

November

Mean

charge 

(secondfeet)

346 

1,140 

642 

564 

603 

584 

500 

518 

509 

483

509 

527 

518 

527 

545

613 

623 

555 

632 

674

726 

652 

652 

663 

527 

623 

663 

652 

632 

603

18,005

Suspended sediment

Mean 

concentration 

(percent)

2.40 

5.75 

3.58 

1.60 

1.19 

1.03 

.93 

.70 

.81 

1.14

.59 

.64 

.56 

.31 

.32

.26 

.40 

.34 

.52 

.44

.46 

.27 

.36 

.28 

.18 

.16 

.25 

.57 

.69 

.98

Tons 

per 

day

1/32, 200 

1/179,000 

1/62, 100 

24,400 

19,400 

16,200 

12,600 

9,790 

11,100 

14, 900

8,110 

9,110 

7,830 

4,410 

4,710

4,300 

6,730 

5,090 

8,870 

8,010

9,020 

4,750 

6,340 

5,010 

2,560 

2,690 

4,480 

10,000 

11,800 

16,000

521,500

February

705 

674 

603 

684 

716 

694 

694 

652 

674 

663 

632 

694 

684 

663 

726

826 

652 

1,670 

1,880 

1,910 

2,000 

1,950 

2,110 

2,180 

2,260 

2,350 

2,310 

2,330

34,586

0.46 

.46 

.50 

.44 

.68 

.54 

.64 

.85 

.72 

.38

.37 

1.14 

.60 

.16 

.11 

.09 

.10 

.53 

.40 

.42 

.38 

.23 

.20 

.75 

1.21

1.00 

.98 

.74

--

8,760 

8,370 

8,140 

8,130 

13, 100 

10, 100 

12,000 

15,000 

13,100 

6,800 

6,310 

21,400 

11,100 

2,860 

2,160

2,010 

1,760 

23,900 

20, 300 

21,700 

20, 500 

12, 100 

11,400 

44, 100 

73,800

63,400 

61, 100 

46,600

550, 000

December

Mean

charge 

(secondfeet)

632 

613 

642 

663 

716 

705 

684 

663 

674 

663

694 

652 

632 

674 

652

674 

726 

781 

849 

781

726 

716 

642 

652 

726 

770 

770 

716 

705 

705 

758

21,656

Suspended sediment

Mean 

concentration 

(percent)

0.15 

.23 

.46 

.78 

.68 

.30 

.47 

.26 

.22 

.14

.12 

.23 

. 14 

.16 

.14

.14 

.22 

.21 

.13 

.12

. 16 

. 18 

.14 

.16 

.20 

.14 

.29 

.14 

.18 

.10 

.20

~

Tons 

per 

day

2,560 

3,810 

7,970 

14,000 

13,100 

5,710 

8,680 

4,650 

4,000 

2,510

2,250 

4,050 

2,390 

2,910 

2,460

2,550 

4,310 

4,430 

2,980 

2,530

3,140 

3,480 

2,430 

2,820 

3,920 

2,910 

6,030 

2,710 

3,430 

1,900 

4,090

134, 600

March

2,350 

2,200 

2,180 

1,980 

2,160 

2,240 

2,330 

2,470 

2,310 

2,310 

2,090 

2,030 

2,240 

2,220 

1,770

1,630 

1,630 

1,670 

1,420 

1,580 

1,890 

1,610 

1,450 

1,740 

1,890

1,480 

1,380 

1,390 

1,210 

1,630 

1,610

58, 090

0.63 

.94 

.43 

.45 

.41 

.42 

.42 

. .36 

.51 

.42

.52 

.45 

.30 

.26 

.21

.22 

.24 

.14 

.14 

.24 

.20 

.28 

.12 

.14 

.25 

.14 

.16 

.12 

.16 

.20 

.10

40,000 

55,800 

25,300 

24, 100 

23, 900 

25,400 

26,400 

24,000 

31,800 

26, 200 

29,300 

24,700 

18,100 

15,600 

10, 000 

9,680 

10,600 

6,310 

5,370 

10,200 

10,200 

12,200 

4,700 

6,580 

12,800

5,590 

5,960 

4,500 

5,230 

8,800 

4,350

523,700

17 Sediment discharge computed by subdividing day. 

2/ Estimated or Interpolated.

256683 O - 53 - 20
296 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO GRANDE AT ACACIA, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

Q

15 ,

Ifl

40

25 

na

31 

TotalQ

13

22 ----- 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

1,290 

1,690 

2,200 

2,030 

1,790

1,080 

527 

440 

448 

716

1,280 

747 

509 

456 

574 

1,350 

1,380 

1,440 

920 

1,220

1,080 

1,230 

1,150 

1,530 

2,200

1,690 

1,910 

2,510 

2,130 

2,370

39, 887

Suspended sediment

Mean 

concentration 

(percent)

0.60 

.34 

.18 

. 11 

.16

.14 

.12 

.10 

.06 

.22

.25 

.14 

.11 

.10 

.14 

.19 

.39 

.56 

.30 

.28

.15 

.26 

.14 

.20 

.31

.20 

.28 

.36 

.26 

.38

Tons 

per 

day

20,900 

16,300 

10, 700 

6,030 

7,730 

4,080 

1,710 

1,190 

726 

4,250

8,640 

2,820 

1,510 

1,230 

2,170 

6,930 

14, 500 

21,800 

7,450 

9,220

4,370 

8,630 

4,350 

8,260 

18,400

9,130 

14,400 

24,400 

* 15, 000 

24, 300

281, 100

July

5,400 

4,550 

4,280 

3,650 

2,970

2,560 

2,470 

2,330 

2,160 

2,310

2,820 

3,080 

3,900 

4,020 

3,720 

2,310 

2,240 

2,160 

1,300 

1,150

1,010 

1,770 

3,840 

4,550 

2,960 

1,560 

1,350 

900 

800 

650 

600

79, 360

0.36 

.24 

. 14 

2/.15 

.22

.22 

.10 

.32 

.60 

2/2.23 

2.07 

2.75 

3.46 

2.63 

1.38 

.92 

.74 

.44 

.35 

.69

.93 

2.60 

2.00 

3.18 

3.20

2.62 

2. 18 

1.37 

.75 

.45 

.40

52, 500 

29, 500 

16, 200 

14, 800 

17, 600

15, 100 

6,670 

20, 100 

35, 000 

139, 000

158, 000 

1/239,000 

1/369,000 

285, 000 

1/141,000 

57,400 

44, 800 

25,700 

12,300 

21,400

25,400 

124,000 

1/223,000 

1/425,000 

1/261,000

110,000 

79, 500 

33,300 

16, 200 

7,900 

6,480

3,012,000

Total discharge for year (second-foot-day 

Total load for year (tons) - 

May

Mean

charge 

(secondfeet)

3,360 

3,430 

2,220 

2,470 

2,530 

2,550 

2,510 

2,970 

2,740 

1,820

2,140 

4,250 

4,420 

3,770 

4,020 

3,900 

3,650 

3,270 

3,430 

3,060

3,040 

3,200 

3,530 

2,450 

2,510

2,590 

3,390 

3,130 

3,650 

4,280 

4,150

98,430

Suspended sediment

Mean 

concentration 

(percent)

0.45 

.31 

.31 

.39 

.38

.49 

.42 

.36 

.25 

.22

1.12 

1.50 

1.42 

.82 

.68 

.58 

.37 

.29 

.56 

.34

.22 

.27 

.32 

.21 

.20

.20 

.28 

.24 

.26 

. 33 

.39

Tons 

per 

day

40,800 

28, 700 

18, 600 

26, 000 

26, 000 

33, 700 

28, 500 

28, 900 

18,500 

10, 800

64, 700 

1/179,000 

169,000 

83, 500 

73,800 

61,100 

36,500 

25,600 

51,900 

28, 100

18, 100 

23,300 

30, 500 

13, 900 

13,600

14, 000 

25,600 

20, 300 

25, 600 

38, 100 

43,700

1,300,000

August

872 

574 

815 

424 

1,180

407 

448 

872 

1,500 

1,760

1,440 

815 

360 

263 

237 

289 

180 

151 

231 

74

28 

60 

30 

18 

40

16 

12 

8 

4 

2 

3

13,113

0.42 

1.02 

3.37 

2.84 

3.96 

2.46 

1. 14 

5.61 

3.34 

5.79

5.62 

2.41 

1.48 

.72 

.61 

.42 

.44 

1.18 

1.37 

2/1.41 

.79 

.85 

.40 

.84 

1.69 

.69 

.26 

. 14 

. 10 

. 10 

.12

--

9,890 

15,800 

74,200 

32, 500 

1/127,000

27, 000 

13,800 

132,000 

1/293, 000 

275,000 

1/230, 000 

53, 000 

14,400 

5,110 

3,900 

3,280 

2,140 

4,810 

8,540 

2,820

597 

1,380 

324 

408 

1,830

298 

84 

30 

11 

5 

10

1, 333, 000

June

Mean

charge 

(secondfeet)

3,650 

3,340 

3,650 

3,530 

3,240 

2,950 

2,110 

2,410 

2,590 

2,590

3,040 

4,020 

3,900 

3,530 

4,280 

4,420 

4,150 

4,550 

5,400 

6,650

6,980 

8,030 

8,210 

9,140 

8,210

8,030 

8,580 

7,150 

6,490 

6,330

151,150

Suspended sediment

Mean 

concentration 

(percent)

0.16 

.26 

.25 

.20 

.23 

.19 

.12 

.17 

.20 

.28

.34 

.68 

.34 

.38 

.30 

.30 

.32 

.35 

.83 

.73

.56 

.36 

.53 

.65 

.28

2/.20 

.54 

.46 

.41 

.50

~

Tons 

per 

day

15,800 

23,400 

24,600 

19, 100 

20, 100 

15,100 

6,840 

11,100 

14,000 

19,600

27, 900 

73, 800 

35,800 

36,200 

34, 700 

35,800 

35, 900 

43,000 

121,000 

131,000

106,000 

78,100 

117,000 

160,000 

62, 100

43,400 

125,000 

88,800 

71,800 

85,500

1, 682, 000

September

300 

12 

40 

276 

424

536 

296 

156 

200 

220

632 

500 

270 

226 

912 

652 

456 

338 

289 

208

175 

136 

74 

50 

37 

32 

25 

25 

28 

1,130

8,655

3.58 

.57 

.46 

.95 

.74

.90 

.61 

1.00 

.75 

4.09

5.01 

2.23 

.88 

.62 

3.60 

1.94 

.95 

.56 

.30 

.23 

.38 

.16 

.12 

.08 

.09

.14 

.07 

.08 

.11 

4.70

--

29, 000 

185 

497 

7,080 

8,470 

13, 000 

4,880 

4,210 

1/8,040 

24,300

85,500 

30, 100 

6,420 

3,780

1/111,000

34, 200 

11,700 

5,110 

2,340 

1,290

1,800 

588 

240 

108 

90 

121 

47 

54 

83 

1/174,000

568,200

3) ____________ _________ 544,986

___________________ 10,160,000

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE BASIN Continued 

RIO GRANDE AT SAN ACACIA, N. HEX. Cont

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechani

Date Time

5:30 p.m. 

7:30 a.m. 

11:30 a.m. 

6:00 p. m. 

8:00 a.m. 

8:00 a.m.

5:00 p. m. 

8:20 a.m. 

5:00 p.m. 

4:00 p. m. 

4:00 p. m. 

5:00 p. m.

8:00 a.m. 

8:00 a. m. 

10:00 p. m. 

12:00 p.m. 

7:15 a.m. 

8:00 a.m.

8:00 a. m. 

8:00 a. m. 

8:00 a. m. 

6:00 p. m. 

5:00 p. m.

8:00 a. m. 

7:30 a.m. 

8:00 p. m. 

3:30 p.m. 

12:30 p.m.

Mean 

discharge 

(secondfeet)

12 

70 

70 

346 

483 

674

632 

663 

781 

684 

574 

632

705 

663 

652 

652 

1,670 

1,910

2,350 

2,310 

1,580 

1,290 

716

3,360 

1,820 

4,250 

3,040 

3,200

Suspended 

Mean daily 

concentration 

(percent)

0.07 

1.14 

1.14 

2.40 

1.14 

.44

.15 

.14 

.12 

.22 

.14 

.76

.46 

.38 

.10 

.10 

.53 

.42

.63 

.42 

.24 

.60 

.22

.45 

.22 

1.50 

.22 

.27

Weight of 

material 

in tube 

(grams)

0.2869 

.2998 

.4041 

1. 8254 

2.7129 

.7818

.5040 

.5078 

.4580 

.8677 

.4687 

2.8054

1. 2096 

1. 6672 

.2368 

.5231 

.5011 

.9119

.6562 

.2482 

.4371 

1.7162 

.2710

.3801 

1.0542 

1. 0220 

.5590 

.4614

Percent f

0.002

0 

0 

0 

41 

0 

0

5 

0 

10 

0 

0 

0

0 

0 

0 

6 

0 

13

1 

28 

23 

4 

15

16 

21 

14 

14 

17

0.004

6 

6 

5 

63 

1 

2

16 

5 

18 

3 

6 

1

2 

2 

10 

12 

4

4 

39 

34 

6 

16

20 

29 

37 

19 

24

0.008

37 

37 

25 

78 

4 

9

36 

30 

44 

9 

30 

3

5 

5 

36 

25 

29 

31

13 

48 

42 

8 

20

25 

35 

48 

24 

35

0.016

66 

71 

76 

88 

14 

37

57 

52 

60 

14 

63 

5

8 

8 

60 

49 

47 

42

27 

58 

52 

10 

26

32 

41 

59 

31 

44
RIO GRANDE BASIN Continued 

RIO GRANDE AT SAN ACACIA, N. HEX. Contin

Particle-size analyses of suspended sediment, water year October 1948 to 

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

W, in distilled water; C, chemically dispersed; M, mechanic

Date Time

7:00 p. m. 

12:00 m. 

12:00 p. m. 

5:30 a. m. 

7:00 a. m. 

8:30 a, m. 

9:00 a. m. 

1:00 p. m. 

6:00 a. m.

8:00 a. m. 

6:00 a. m. 

9:00 a. m. 

12:00 m. 

3:00 p. m. 

2:00 p. m. 

5:30 p. m.

Mean 

discharge 

( second - 

feet)

3,650 

3,650 

3,040 

6,650 

5,400 

2,820 

3,080 

1,150 

1,770

872 

1,760 

1,760 

300 

220 

912 

206

Suspended s

Mean daily 

concentration 

(percent)

0.16 

.25 

.34 

.73 

.36 

2.07 

2.75 

,69 

2.60

.42 

5.79 

5.79 

3.58 

4.09 

3.60 

.23

Weight of 

material 

in tube 

(grams)

0. 3910 

.4885 

1. 5021 

1. 1109 

.4857 

1.2594 

1. 3076 

1.0598 

1.9867

1. 6245 

.5462 

.3324 

.1305 

.6115 

.3093 

.3093

Percent fin

0.002

18 

6 

7 

9 

12 

30 

22 

25 

15

27 

15 

27 

30 

33 

26 

25

0.004

24 

22 

10 

13 

17 

46 

47 

40 

25

38 

24 

40 

44 

55 

41 

39

0.008

30 

28 

14 

17 

22 

60 

60 

52 

33

51 

32 

51 

61 

69 

54 

56

0.016

38 

38 

22 

23 

28 

72 

76 

64 

40

66 

86 

66 

78 

86 

69 

67
RIO GRANDE BASIN Continued 

RIO GRANDE AT SAN MARCIAL, N. HEX.

LOCATION. At gaging station in Pedro Armendaris Grant 33, at Atchison, Topeka and Santa Fe Rai

County.

DRAINAGE AREA. 27,700 square miles (includes 2,940 square miles in closed basin in northern pa

RECORDS AVAILABLE. Chemical analyses: July 1946 to September 1949.

Water temperatures: January to September 1949.

Sediment records: July 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,090 parts per million Nov. 3-4; minimum, 252 

Total hardness: Maximum, 474 parts per million Nov. 3-4; minimum, 142 parts per million June 

Water temperatures: Maximum 82 °F Aug. 5, 7, 11, Sept. 6; minimum, 33°F on several days in Ja

Sediment loads: Maximum, 366,000 tons per day July 25; minimum, 4 tons per day Oct. 15. 

EXTREMES, 1946-49. Dissolved solids: Maximum, 1,670 parts per million Aug. 11-16, 19-22, 1946

Total hardness: Maximum, 820 parts per million Aug. 11-16, 19-22, 1946; minimum, 141 parts p

Sediment loads: Maximum, 366,000 tons per day July 25, 1949; minimum, 0 tons per-day on seve

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sup

samples available in district office at Albuquerque, N. Hex. Records of chemical analyses a

in Water Bulletins of International Boundary and Water Commission.

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-10, 1948 

Nov. 1-2, 5-10 

Nov. 11-18, 20 

Nov. 21-22, 24-30-

Dec. 11-15, 17-20- 

Dec. 21-24, 26-31- 

Jan. 1-4, 6-10,1949

Feb. 11-12, 14-15,

Mar. 21-22, 24-31-

Mean 

discharge 

(secondfeet)

44.2 

26.0 

34.6 

479 

289 

334 

501

569 

562 

617 

459 

831 

609

735

835 

2,041 

2,158 

1,791 

1,521

PH

7.9 

8.0 

7.9 

7.7 

7.9 

7.8 

8.0

7.7 

7.9 

8.0 

7.8 

7.6 

7.7

7.7

7.9 

7.9 

7.9 

7.6 

7.7

Specific 

conductance 

(micromhos at 

25° C )

1,140 

1,080 

1,110 

1,520 

889 

766 

708

702 

678 

648 

730 

682 

710

695

653 

557 

532 

551 

577

Silica 

(SiO,)

34 

32 

30 

20 

26 

28 

29

33 

32 

31 

29 

28 

27

29

27 

23 

20 

24 

35

Iron 

(Fe)

Calcium 

(Ca)

100 

92 

92 

, 144 

81 

74 

70

65 

65 

62 

68 

60 

66

64

62 

56 

55 

60 

^3

Magnesium 

(Hg)

21 

21 

19 

28 

16 

14 

15

13 

12 

11 

13 

12 

12

12

11 

9.2 

9.1 

11 

11

Sodium 

(Na)

Potassium 

(K)

124 

119 

128 

172 

93 

77 

63

69 

67 

64 

76 

71 

72

71

65 

51 

46 

43 

46

Bicarbonate 

(HCOS)

236 

235 

254 

243 

220 

220 

206

204 

203 

194 

208 

182 

204

196

194 

161 

154 

171 

178

Saltide 

(SO,)

295 

249 

242 

534 

211 

166 

146

140 

134 

126 

152 

139 

138

137

123 

118 

110 

112 

117

Ch

(
RIO GRANDE BASIN Continued

RIO GRANDE AT SAN MARCIAL, N. HEX.--Cont

Chemical analyses, In parts per million, water year October 1948 to Se

Date of collection

Apr. 1-10, 1949 

July 21-28, 30-31 -

Aug. 11-17, 19-20-

Qent 7 Q

Weighted average -

Mean 

discharge 

(secondfeet)

1,287 

820 

1,542 

2,573 

3,623 

3,153

3,026 

3,805 

7,756 

3,535 

2,603 

1,760

740 

522 

87.2 

1/38.4 

2/270 

552 

92.4

1,425

pH

7.8 

7.8 

7.8 

7.9

7.6

7.4 

7.6 

7.6 

7.5 

7.6 

7.6

7.5 

7.9 

7.8 

7.9 

8.1 

7.9 

8.0

-

Specific 

conductance 

(micromhos at 

25° C )

614 

710 

576 

445 

554 

432

419 

400 

405 

402 

624 

766

945 

1,050 

1,100 

1,170 

696 

997 

895

543

Silica 

(Si02)

28 

27 

29 

23 

23 

26

24 

26 

26 

27 

25 

27

24 

23 

30 

29 

23 

23 

29

26

Iron

(Fe)

Calcium 

(Ca)

61 

65 

53 

46 

56 

48

48 

44 

49 

46 

65 

78

102 

97 

95 

104 

68 

103 

76

57

Magnesium 

(Mg)

13 

13 

11 

9.2 

11 

9.0

7.4 

7.9 

8.7 

7.9 

13 

14

17 

17 

18 

20 

12 

18 

14

Sodium 

(Na)

Potassium 

(K)

52 

70 

54 

34 

44 

29

30 

30 

20 

28 

46 

69

82 

113 

121 

125 

66 

92 

106

10 44

Bicarbonate 

(HCO.)

168 

188 

163 

143 

155 

143

143 

137 

142 

145 

167 

190

179 

224 

264 

237 

179 

226 

223

161

Sallate 

(S04)

131 

147 

112 

80 

107 

77

76 

70 

64 

66 

143 

193

289 

293 

234 

281 

158 

267 

188

109

Chlo

(C

I/Discharge for September 6 included in discharge for September 7-9. 

2/Includes discharge for September 6 and 10.
Temperature (°F) of water, December 1948 t

Day

1 . 

2 - -

1 9

1 A

19

20

99

90

94

25

27

9Q

on

verage

October November December

--

AO

QQ

January

41

33

AA

«Q

42

QQ

QQ

QA

33

J f

February

33 

34

QJ

AQ

AQ

ALt

March

43

en

52

52

54
302 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO GRANDE AT SAN MARCIAL, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949

Day

g

1fl

22

04

26 -

27

9ft

29

Total12

1ft

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

64 

56 

77 

53 

43 

37 

30 

29 

24 

29

16 

9 

9 

7 

8 

78 

40 

26 

25 

42

43 

58 

33 

19 

16

15 

19 

28 

31 

47 

72

1,083

Suspended sediment

Mean 

concentration 

(percent)

3.53

1.87 

1.70 

1.05 

.55

.30 

.18 

.13 

.12 

.19

.08 

.05 

.02 

.03 

.02 

1.99 

2.53 

1.10 

.23 

.22

1.05 

2.47 

.92 

.18 

.05

.02 

.07 

.26 

.14 

.22 

.30

Tons 

per 

day

6,100 

2,830 

3,530 

1,500 

639

300 

146 

102 

78 

149

35 

12 

5 

6 

4 

5,290 

2,730 

772 

155 

249

1,220 

3,870 

820 

92 

22

8 

36 

197 

117 

279 

583

31, 880

January

710 

710 

613 

200 

150

250 

320 

414 

534 

690 

1,050 

898 

850 

958 

910 

839 

910 

510 

534 

850 

795 

806 

604 

613 

680 

720 

670 

680 

500 

200 

428

19, 596

0.24 

.21 

.20 

.04 

.10

.06 

.08 

.07 

.09 

.31

.41 

.28 

.21 

.19 

.33

.08 

.12 

.04 

.08 

.26

.26 

.24 

.20 

.20 

.21

.21 

.24 

.33 

.07 

.01 

.05

-

4,600 

4,030 

3,310 

216 

405

405 

691 

782 

1,300 

5,780

11,600 

6,790 

4,820 

4,910 

8,110

1,810 

2,950 

551 

1,150 

5,970

5,580 

5,220 

3,260 

3,310 

3,860

4,080 

4,340 

6,060 

945 

54 

578

107, 500

November

Mean

charge 

(secondfeet)

117 

148 

570 

388 

335 

352 

346 

335 

340 

340

330 

330 

305 

335 

335 

305 

320 

330 

325 

428

470 

502 

518 

478 

550

478 

534 

540 

450 

490

11, 624

Suspended sediment

Mean 

concentration 

(percent)

0.45 

.61 

4.65 

2.93 

1.75

1.12. 

.83 

.69 

.67 

.64

.50 

.46 

.42 

.38 

.37 

.35 

.33 

.45 

.46 

.47

.47 

.54 

.42 

.41

.35

.31 

.22 

.40 

.41 

.22

Tons 

per 

day

1,420 

2,440 

75,900 

30,700 

15,800

10, 600 

7,750 

6,240 

6,150 

5,880

4,460 

4,100 

3,460 

3,440 

3,350 

2,880 

2,850 

4,010 

4,040 

5,430

5,960 

7,320 

5,870 

5,290 

5,200

4,000 

3,170 

5,830 

4,980 

2,910

251, 400

February

494 

700 

900 

874 

795

720 

730 

740 

670 

730 

604 

577 

577 

559 

586

680 

784 

710 

1,420 

1,850

1,970 

1,870 

2,000 

1,970 

1,870

2,110 

2,250 

2,290

32, 030

0.08 

.20 

.42 

.24 

.19

.17 

.26 

.18 

.22 

.22

.21 

.16 

.26 

.14 

.13

.27 

.22 

.21 

.62 

.48

.46 

.46 

.37 

.40 

.52

.82 

.78 

.70

1,070 

3,780 

10,200 

5,660 

4,080

3,300 

5,120 

3,600 

3,980 

4,340 

3,420 

2,490 

4,050 

2,110 

2,060

4,960 

4,660 

4,030 

23,800 

24,000

24, 500 

23,200 

20,000 

21,300 

26,300

46, 700 

47,400 

43, 300

373,400

December

Mean

charge 

(secondfeet)

450 

730 

604 

510 

486

556 

622 

613 

586 

534

542 

542 

542 

542

518 

577 

568 

586 

595 

613

631 

604 

586 

613 

631

730 

710 

586 

502 

631 

568

18, 108

Suspended sediment

Mean 

concentration 

(percent)

0.27 

.32 

.26 

.31 

.24

.25 

.28 

.33 

.29 

.26

.28 

.27 

.25 

.22 

,28 

.27 

.26 

.31 

.31 

.28

.32 

.27 

.26 

.25 

I/. 26

.28 

.29 

.24 

.24 

.22 

.22

Tons 

per 

day

3,280 

6,310 

4,240 

4,270 

3,150

3,750 

4,700 

5,460 

4,590 

3,750

4,100 

3,950 

3,660 

3,220 

3,920 

4,210 

3,990 

4,900 

4,980 

4,630

5,450 

4,400 

4,110 

4,140 

4,430

5,520 

5,560 

3,800 

3,250 

3,750 

3,370

132. 800

March

2,250 

2,130 

2,250 

2,220 

1,970

2,110 

2,020 

2,170 

2,170 

2,290

2,250 

1,930 

1,870 

1,930 

2,020 

1,770 

1,590 

1,550 

1,500 

1,500

1,470 

1,770 

1,710 

1,680 

1,570

1,790 

1,550 

1,380 

1,270 

1,130 

1,410

56,250

0.64 

.52 

.42 

.34 

.32

.34 

.28 

.31 

.32 

.31 

.27 

.32 

.32 

.30 

.22

.22 

.22 

.19 

.18 

.22

.26 

.26 

I/. 18 

.14 

.16 

.15 

.14 

.09 

.16 

.12 

.12

38,900 

29,900 

25, 500 

20,400 

17, 000

19,400 

15,300 

18,200 

18,700 

19,200

16,400 

16, 700 

16, 200 

15,600 

12, 000

10, 500 

9,440 

7,950 

7,290 

8,910

10,300 

12,400 

8,310 

6,350 

6,780 < 

7,250 

5,860 

3,350 

5,490 

3,660 

4,570

417, 800

I/Estimated or interpolated.
RIO GRANDS BASIN 303

RIO GRANDE BASIN Continued

RIO GRANDE AT SAN MARCIAL, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

3 ..

4 ......

6- 

7»» ....

13 ......

15 ......

17 

Ifl

20 

ai 

22-«-«-

23 .. .

25 ------

26 ......

Ag

29- 

31 ......

Total3 ......

6 ..

13 ..

16 -

19- 

20 ---

21 ...... 

22 

23 

24 

25 

26 

27 ...... 

28 

29 -- 

30 ...... 

31 ......

TotalApril

Mean 

discharge 

(secondfeet)

1,530 

1,280 

1,320 

1,770 

1,830

1,780 

1,380 

874 

568 

518

559 

828 

806 

660 

510 

442 

829 

1,130 

1,360 

1,070

1,180 

1,100 

1,02.0 

1,090 

1,210 

1,770 

1,870 

1,930 

2,170 

2,080

36^494

Suspended sediment

Mean 

concentration 

(percent)

0.11 

.08 

.14 

.08 

.06 

.06 

.06 

.07 

.03 

.05

.06 

.08 

.04 

.03 

.03 

.03 

.06 

.08 

.13 

.04

.04 

.04 

.04 

.04 

.04

.10 

.06 

.07 

.06 

.07

..

Tons 

per 

day

4,540 

2,760 

4,980 

3,820 

2,960

2,900 

2,250 

1,650 

460 

699

906 

1,790 

870 

535 

413 

358 

1,360 

2,440 

4,770 

1,160 

1,270 

1,190 

1,100 

1,180 

1,310

4,780 

4,040 

3,650 

3,520 

3,830

67, 600

July

5,900 

4,910 

4,440 

4,360 

3,680

2,990 

2,570 

2,390 

2,080 

2,020 

2,550 

2,680 

3,140 

3,550 

3,390

3,260 

2,200 

2,110 

1,850 

1,300

1,140 

1,110 

1,890 

3,140 

4,360 

2,520 

1,750 

1,410 

874 

631 

534

80, 739

0.09 

.08 

.07 

.08 

.09

.10 

.08 

.06 

.07 

.06 

.10 

.15 

.50 

1.75 

1.09

.80 

.47 

.43 

.29 

.16 

.14 

.16 

.73 

2.97 

3.11 

1.80 

1.65 

1.61 

.96 

.50 

.58

14,300. 

10, 600 

8,390 

8,240 

N 8,970

8,070 

5,550 

3,870 

3,930 

3,270

6,880 

10, 900 

42, 400 

168, 000 

99, 800 

70,400 

27,900 

24,500 

14,500 

5,620 

4,310 

4,800 

37,300 

252,000 

366, 000 

122,000 

78,000 

61,300 

22,700 

8,520 

8,360

1,511,000

May

Mean

charge 

(secondfeet)

2,220 

2,760 

3,170 

2,290 

2,420

2,340 

2,490 

2,520 

2,780 

2,730

2,250 2, 200' 

3,820 

4,480 

4,110 

4,000 

4,110 

3,880 

3,780 

3,580 

3,390 

3,230 

3,550 

3,330 

2,550

2,440 

2,550 

3,230 

3,230 

3,360 

3,820

98,640

Suspended sediment

Mean 

concentration 

(percent)

0.10 

.08 

.09 

.06 

.08

.06 

.08 

.08 

.07 

.09

.06 

.06 

.12 

.19 

.14

.12 

.12 

.10 

.12 

.12 ":S

.10 

.08 

.05 

.05 

.05 

.06 

.05 

.06 

.11

..

August

542 

660 

888 

640 

568

1,060 

526 

510 

784 

1,210

1,550 

1,320 

640 

463 

250

216 

245 

236 

154 

151

180 

112 

130 

117 

92 

73 

79 

54 

53 

42 

27

13, 582

0.70 

.52 

.49 

.60

1. 11

2.10 

1.18 

.98 

3.05 

2.80

3.46 

4.05 

2.80 

1.44 

.94

.49 

.48 

I/. 25 

.20 

.18

2.09 

1.05 

.80 

.52 

.19 

.08 

.10 

.19 

.06 

.03 

.06

--

Tons 

per 

day

5,990 

5,960 

7,700 

3,710 

5,230 

3,790 

5,380 

5,440 

5,270 

6,630

3,640 

3,560 

12,400 

23, 000 

15, 500 

13, 000 

13, 300 

10,500 

12,300 

11, WO

10, 100 

8,720 

9,580 

7,190 

3,440 

3,290 

3,440 

5,230 

4,360 

5,440 

11,300

246, 000

10, 200 

9,270 

11,900 

10, 400 

17,000

60, 100 

16, 800 

13, 500 

64,600 

91, 500

145, 000 

144, 000 

48, 400 

18, 000 

6,340

2,860 

3,180 

2,230 

832 

734

10, 200 

3,180 

2,810 

1,640 

472 

158 

213 

277 

86 

34 

44

696, 000

Tune

Mean

discharge 

(secondfeet)

3,880 

3,720 

3,330 

3,290 

3,290

3,200 

2,850 

2,150 

2,200 

2,340

2,490 

3,050 

3,890 

3,820 

3,390 

3,960 

4,070 

4,110 

4,360 

4,910 

5,810 

6,740 

7,720 

8,000 

8,600

9,230 

8,600 

8,300 

7,720 

8,840

145, 870

Suspended sediment

Mean

concentration 

(percent)

0.09 

.08 

.05 

.05 

.05

.05 

.04 

.04 

.04 

.04

.03 

.04 

.10 

.08 

.04

.06 

.08 

.06 

.08 

.11

.10 

.15 

.14 

.15 

.14

.12 

.14 

.14 

.10 

.10

Tons 

per 

day

9,450 

8,040 

4,500 

4,440 

4,440 

4,320 

3,080 

2,320 

2,380 

2,530 

2,020 

3,290 

10, 500 

8,250 

3,660 

6,420 

8,790 

6,660 

9,420 

14, 600

15, 700 

27,300 

29,200 

32,400 

32, 500 

29, 900 

32, 500 

31,400 

20, 800 

18, 500

389, 300

September

24 

35 

68 

26 

39

250 

478 

236 

160 

224

946 

958 

510 

470 

478

660 

586 

414 

305 

196

192 

127 

117 

120 

70 

72 

53 

68 

52 

53

7,987

0.06 

.06 

.18 

.16 

.20

.52 

.66 

.45 

.30 

I/. 50

1.95 

2.32 

1.90 

.95

.57

1.29 

1.27 

.97 

.55 

.29

.11 

.11 

.08 

.06 

.05 

.04 

.04 

.02 

.04 

.03

39 

57 

330 

112 

211

3,510 

8,520 

2,870 

1,300 

3,020

49, 800 

60, 000 

26,200 

12, 100 

7,360

23, 000 

20, 100 

10, 800 

4,530 

1,530

570 

377 

253 

194 

94 

78 

57 

37 

56 

43

237, 100

Total discharge for year (second-toot-days) - 

Total load for year (tons) -- 

519,973

4,462,000

I/Estimated or interpolated.
RIO GRANDS BASIN Continued 

RIO GRANDE AT SAN MARCIAL, N. HEX. Conti

Particle-size analyses of suspended sediment, water year October 1

(Methods of analysis: B, bottom withdrawal tube; D, decantation; p, pipett

W, in distilled water; C, chemically dispersed; M, mechani

Date

Oct 1 1943

Oct 20

Dec 1

Dec 20

Jan 1 1 94 9

Mar 1

Mar 20

Time

3:30 p. m. 

3:20 p. m. 

12:50 p. m. 

1:55 p. m. 

12:30 p.m. 

1:32 p.m. 

4:01 p. m.

2:20 p.m. 

4:10 p.m. 

10:15 a.m. 

2:15 p.m. 

1:57 p. m. 

3:30 p. m.

12:13 p.m. 

2:40 p. m. 

11:10 a. m. 

10:35 a.m. 

10:12 a.m. 

1:15 p. m. 

1:45 p. m.

11:15 a.m. 

12:30 p. m. 

2:00 p.m. 

9: 10 a.m. 

1 1:05 a. m.

Mean 

discharge 

(secondfeet)

64 

29 

42 

117 

388 

340 

428

450 

534 

613 

710 

690 

850

494 

730 

1,420 

1,850 

2,250 

2,290 

1,500

1,530 

518 

1,070 

2,220 

3,580

Suspended 

Mean daily 

concentration 

(percent)

3.53 

.19 

.22 

.45 

2.93 

.64 

.47

.27 

.26 

.28 

.24 

.31 

.26

.08 

.22 

.62 

.48 

.64 

.31 

22

.11

.05 

.04 

.10 

.12

Weight of 

material 

in tube 

(grams)

0.8911 

.4961 

.4127 

.5333 

1.4053 

.7515 

.7601

1. 1010 

.4293 

1. 0186 

.4420 

.6501 

.7952

.3311 

2. 3640 

1. 2927 

1.4371 

.3644 

.6042 

.8001

.6020 

. 1317 

.1015 

.1696 

.3272

Percent f

0.002

0 

0 

0 

0 

58 

0 

0

2 

5 

0 

7 

2 

1

0 

0 

2 

3 

2 

1 

15

10 

35 

40 

34 

34

0.004

5 

3 

4 

4 

79 

3 

2

15 

13 

2 

12 

6 

3

5 

1 

5 

5 

8 

5 

24

18 

44 

42 

39 

37

0.008

82 

13 

20 

14 

92 

7 

10

 47 

71 

8 

40 

40 

15

28 

5 

22 

26 

36 

27 

30

23 

49 

43 

42 

45

0.016

97 

84 

86 

81 

100 

82 

78

84 

77 

62 

50 

64 

27

42 

13 

46 

53 

52 

41 

37

30 

63 

47 

46 

50
ly 1 .................

Iv 25

*. i 

pt. i 

3 890

3 290

MA

2 

DA

29 '

9943

9949

.7785

33

OO

OQ KO

64

82

75

PI

54

QO

po

P

5

Q

p
RIO GRANDE BASIN Continued 

RIO GRANDE AT MISSION PIMPING PLANT NEAR MISSION, 

LOCATION. At Mission pumping plant 3 miles south of Mission, Hidalgo County.

DRAINAGE AREA. 171,800 square miles (estimated).

RECORDS AVAILABLE.--Chemical analyses: July 1945 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,000 parts per million Feb. 20-25; minimum, 315 p

Total hardness: Maximum, 376 parts per million Jan. 21-31, Feb. 20-25; minimum, 150 parts per m

EXTREMES, 1945-49. Dissolved solids: Maximum, 1,440 parts per million May 9-11, 1947; minimum, 2

Total hardness: Maximum, 672 parts per million May 9-11, 1947; minimum, 95 parts per million Ju

REMARKS. No discharge records available for this station. Records of specific conductance of dai

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Jan. 21-31 

Mar 21.31 

Mean 

discharge 

(secondfeet)

Temperature

CF)

pH

8.0 

8.2 

8.2 

R 1

Specific 

conductance 

(micromhos nt 

25* C)

898 

924 

655 

790 

935 

1,060

1,140 

1,200 

1,310 

1,450 

1,420 

1,500

1,450 

1,590 

1,640 

524 

501 

882 

1,140 

1 9.7.n

Silica 

(SiOJ

22 

19 

14 

17 

22 

21

24 

24 

21 

22 

19 

18

20 

21 

21 

11 

13 

17 

17 

17

Iron 

(Fe)

Calcium 

(Ca)

72 

74 

55 

67 

72 

76

72 

80 

90 

94 

94 

98

92 

97 

98 

50 

46 

76 

86 

«fi

Magnesium 

(Mg)

17 

16 

11 

17 

19 

23

26 

27 

29 

31 

31 

32

30 

31 

32 

9.0 

8.5 

16 

22 

2*

Sodium 

(Na)

Potassium 

(K)

89 

95 

63 

72 

96 

118

128 

134 

146 

168 

161 

173

170 

195 

205 

48 

44 

83 

125 

iaa

Bicarbonate 

(HCO.)

165 

158 

136 

152 

159 

155

146 

170 

186 

191 

192 

194

179 

179 

178 

136 

112 

156 

176 

17ft

Sulfate 

(SOJ

151 

160 

108 

135 

162 

195

207 

206 

221 

250 

241 

262

256 

279 

295 

76 

73 

134 

185 

202

Chl

rid

(Cl

1

1

1

1

1

1

1

2

2

2

2

2

2

1

1

1
Sept. 20-23, 25-29 

7 8

8

t

8

n

7

0

8

1

7 9

8 0

8 1

8

r\

7.8

I7CI7

1 140

709

949

958

587

925

775

91

21

1ft

1ft

99

19

24

90

99

17

74

Eft

57

on

59

66

19

1 ft

11

en

93

95

lift

93

OQ

93

76

1J.fi

133

1i9

1 RA

134

205

1 RQ

184

140

249

ffl4

1 ft 0

138
308 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO CHAMA NEAR ABIQUIU, N. MEX.

LOCATION. At gaging station at bridge on State Highway 96 in Juan Jose Lobato Grant,

Ij miles upstream from El Rito Creek, 5 miles downstream from Abiquiu, Rio Arriba

County, and 13.5 miles downstream from Abiquiu dam site. 

RECORDS AVAILABLE. Sediment records: January 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 102,000 tons per day July 13; minimum, 0 tons

per day on many days. 

EXTREMES, January 1948-September 1949.--Sediment loads: Maximum, 102,000 tons per day

July 13, 1949; minimum, 0 tons per day on many days. 

REMARKS. Records of discharge for water year September 1948 to October 1949, given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

3

m

20 

21 

22 ------ 

23 

24 ------ 

25 

26 

27 

28 

29 

30 

31 ......

TotalOctober

Mean

discharge 

(secondfeet)

26 

28 

30 

29 

27 

25 

24 

22 

22 

21

19 

18 

15 

15 

20 

22 

23 

23 

22 

26

40 

35 

373 

576 

584

600 

419 

97 

74 

112 

80

3,447

Suspended sediment

Mean 

concentration 

(percent)

0.05 

.02 

.02 

.01 

.02 

.02 

.02 

.01 

.01 

.01

.01 

.02 

0 

.01 

.01

0 

.01 

.01 

0 

.01 

.04 

.02 

.12 

.18 

.07 

.04 

.04 

.04 

.21 

.67 

1.29

Tons 

per 

day

35 

15 

16 

8 

15 

14 

13 

6 

6 

6

5 

10 

0 

4 

5

0 

6 

6 

0

7

43 

19 

3,130 

2,800 

1,100

648 

453 

105 

420 

2,030 

2,790

13, 720

November

Mean

charge 

(secondfeet)

72 

50 

38 

32 

30 

29 

29 

28 

27 

27 

27 

26 

26 

26 

25

25 

25 

25 

23 

22

23 

24 

23 

26 

 30

26 

25 

26 

32 

32

879

Suspended sediment

Mean 

concentration 

(percent)

0.58 

.22 

,91 

.22 

.07 

.03 

.02 

.02 

,02 

.01

.01 

.01 

.01 

.01 

.01 

.02 

.01 

0 

.01 

.01

.01 

.01 

.01

!/. 01

.01 

.01 

0 

.01 

0 

.01

Tons 

per 

day

1,130 

297 

934 

190 

57 

23 

16 

15 

15 

7

7 

7 

7 

7 

7 

14 

7 

0 

6 

6

6 

6 

6 

7 

8

7 

0 

7 

0 

9

2,810

December

Mean

charge 

(secondfeet)

26 

34 

28 

25 

24 

30 

32 

30 

29 

30

31 

32 

33 

35 

37

30 

32 

39 

29 

25

31 

38 

39 

36 

30

32 

37 

29 

28 

33 

35

979

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.02 

.01 

.01 

.02 

.01 

0 

.01 

.01 

0

.01 

0 

0 

0 

0

0 

0 

0 

0 

.01

0 

0 

.02 

.01 

.01

.01 

.02 

.01 

.02 

.01 

0

~

Tons 

 per 

day

7 

18 

8 

7 

13 

8 

0 

8 

8 

0

8 

0 

0 

0 

0

0 

0 

0 

0

7

0 

0 

21 

8 

8

9 

20 

8 

15 

9 

0

190

I/Estimated or interpolated.
RIO GRANDE BASIN 309

RIO GRANDE BASIN Continued

RIO CHAMA NEAR ABIQUIU, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949--Contlnued

Day

n

18

21

23

24 

25

Oft

97

4Q

29

Totalo

5-«. 

g

g

13

1ft

19

20

21 ...... 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

40 

35 

33 

30 

27

25 

26 

28 

30 

33 

30 

35 

37 

40 

35 

30 

28 

30 

28 

32

30 

28 

29 

30 

31

30 

30 

29 

28 

25 

22

944

Suspended sediment

Mean 

concentration 

(percent)

0.02 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

.02 

0 

.01 

.01 

.01 

.01 

0 

.01 

0 

0 

0

0 

.01 

.01 

.02 

.02 

.01

Tons 

per 

day

22 

0 

0

0 

0

0 

0 

0 

0 

D

0 

0 

0 

0 

19 

0 

8 

8 

8 

9 

0 

8 

0 

0 

0 

0 

8 

8 

15 

14 

6

133

April

1,350 

1,310 

1,280 

391 

171 

189 

201 

171 

164 

161

120 

100 

114 

142 

164 

182 

193 

225 

271 

344

360 

441 

568 

703 

740 

790 

608 

546 

616 

649

13,264

0.16 

.10 

.08 

.04 

.09 

1.48 

1.67 

.65 

.36 

.39

.16 

.22 

.16 

.20 

.22 

.19 

.25 

.19 

.16 

.29

.20 

.30 

.50 

.48 

.56 

.48 

.21 

.16 

.24 

.20

"

5,830 

3,540 

2,760 

422 

416 

7,550 

9,060 

3,000 

1,590 

1,700 

518 

594 

492 

767 

974 

934 

1,300 

1,150 

1,170 

2,690

1,940 

3,570 

7,670 

9,110 

11,200 

10, 200 

3,450 

2,360 

3,990 

3,500

103,400

February

Mean

charge 

(secondfeet)

20 

20 

22 

28 

35

33

28 

24 

22 

20 

22 

25 

30 

28 

780 

1,620 

1,570 

1,540 

1,560 

1,570

1,570 

1,540 

1,540 

1,540 

1,540 

1,600 

1,540 

1,540

21,407

Suspended sediment

Mean 

concentration 

(percent)

0

0 

0 

0 

0 

.31 

.84 

.62 

.34 

.51 

.40

.17 

.22 

.12 

.13 

.04 

.17 

.13 

.05

Tons 

per 

day

0

0

0 

0 

0 

2/12,500 

36,700 

26,300 

14,100 

21,500 

17,000 

7,210 

9,150 

4,990 

5,410 

1,660 

7,340 

5,410 

2,080

171,400

May

511 

455 

455 

434 

372 

322 

310 

305 

252 

230 

338 

462 

560 

553 

667 

676 

624 

539 

887 

1,320

1,350 

1,400 

1,650 

1,880 

2,210 

1,980 

1,960 

2,210 

2,300 

2,120 

1,800

31, 132

0.12 

.12 

.14 

.10 

.09 

.09 

.07 

.06 

.04 

.04

.09 

,09 

.24 

.34 

.26 

.25 

.18 

.12 

.73 

.65

.37 

.33 

.48 

.45 

.40 

.22 

.20 

.26 

.18 

.15 

.13

--

1,660 

1,470 

1,720 

1,170 

904 

782 

586 

494 

272 

248

821 

1,120 

3,630 

5,080 

4,680 

4,560 

3,030 

1,750

2724, 100

23,200

13,500 

12, 500 

21,400 

22,800 

23,900 

11,800 

10,600 

15, 500 

11,200 

8,590 

6,320

239,400

March

Mean

charge 

(secondfeet)

1,540 

1,510 

1,520 

1,620 

1,560

1,560 

1,560 

1,620 

1,430 

1,420 

1,420 

1,430 

1,360 

1,380 

1,380 

1,380 

1,430 

1,360 

1,380 

1,390

1,380 

1,360 

1,350 

1,360 

1,350 

1,330 

1,320 

1,310 

1,310 

486 

1,040

42,846

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.14 

.14 

.21 

.29

.36 

.32 

.42 

.23 

.16 

.26 

.43 

.78 

.25 

I/. 30 

.38 

.40 

.28 

.17 

.17

.17 

.16 

.09 

.12 

.11 

.09 

.04 

I/. 06 

.09 

.03 

.17

Tons 

per 

day

1,660 

5,710 

5,750 

9,190 

12,200

15,200 

13, 500 

18,400 

8,880 

6,130 

9,970 

16,600 

28,600 

9,320 

11,200 

14,200 

15,400 

10,300 

6,330 

6,380

6,330 

5,880 

3,280 

4,410 

4,010 

3,230 

1,430 

2,120 

3,180 

394 

4,770

264, 000

June

1,780 

1,760 

1,680 

1,420 

1,450 

1,430 

1,450 

1,460 

1,460 

1,450

1,060 

1,060 

,460 

,430 

,110 

,110 

,100 

,100 

1,900 

1,940

1,700 

1,100 

800 

1,000 

1,100 

950 

800 

700 

600 

500

37,860

0.12 

.11

.10 

.11 

.10 

.10 

.09 

.11 

.09 

.06

.16 

.09 

.12 

.09 

.05 

.04 

.06 

.06 

.52 

.41

.17 

.11 

.05 

.16 

.08 

.05 

.03 

.03 

.03 

.02

~

5,770 

5,230 

4,540 

4,220 

3,920 

3,860 

3,520 

4,340 

3,550 

2,350

4,580 

2,580 

4,730 

3,470 

1,500 

1,200 

1,780 

1,780 

26, 700 

21,500

7,800 

3,270 

1,080 

4,320 

2,380 

1,280 

648 

567 

486 

270

133,200

Jl/Estimated or interpolated.

I/Sediment diecharge computed by subdividing day.
310 WESTERN GULF OF MEXICO BASINS

RIO GRANGE BASIN Continued

RIO CHAMA NEAR ABIQUIU, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949--Continued

Day

2 -

12IS .

"tR

20 -

21- .

Qtt

Oft

27 

GO

29 

TotalJuly

Mean 

discharge 

'{secondfeet)

450 

440 

430 

430 

430 

402 

322 

238 

243 

271

480 

280 

1,020 

600 

525 

518 

504 

354 

277 

276

316 

493 

795 

462 

420

349 

300 

285 

266 

256 

252

12, 684

Total discharge for 

Total load for year

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.03 

.03 

.02 

.01 

.02 

I/. 02 

.06 

.33 

.45

1.78 

.43 

3.21 

1.40 

.20 

.09 

.08 

.05 

.03 

.03

.30 

2.63 

2.67 

1.60 

1.41

.56 

.17 

.07 

.06 

.06 

.08

"

Tons 

per 

day

122 

356 

348 

232

116 

217 

174 

386 

2,170 

3,290

1/29, 900 

3,250 

1/102,000 

22, 700 

2,840 

1,260 

1,090 

478 

224 

224

2,560 

2/32,800 

2/65, 200 

~ 34,300 

16, 000 

5,280 

1,380 

539 

431 

415 

544

330, 600

August

Mean 

discharge 

(secondfeet)

238 

221 

237 

178 

178 

230 

238 

421 

294 

269

193 

178 

168 

164 

161 

158 

212 

384 

178 

168

164 

161 

155 

155 

213

544 

1,130 

1,010 

988 

976 

1,360

11,324

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.04 

.22 

.42 

.15 

.91 

1.95 

3.63 

1.45 

.77 

.62 

.12 

.06 

.04 

.04 

.03 

.48 

1.20 

.25 

.08

.06 

.04 

.05 

.08 

2.18

1.55 

.94 

.56 

.36 

.28 

.54

--

Tons 

per 

day

193 

239 

2/2, 120 

2,020 

721 

5,650 

12,500 

2/39, 300 

I/", 100 

2/5,420

3,230 

577 

272 

177 

174 

128 

2/4,080 

2/14, 100 

1,200 

363

266 

174 

209 

335 

2/18,800

2/14, 100 

28, 700 

15, 300 

9,600 

7,380 

19,800

246, 200

September

Mean

charge 

(secondfeet)

1,540 

1,520 

978 

434 

448 

462 

462 

476 

476 

483

483 

462 

490 

278 

128 

100 

86 

80 

74 

70

87 

62 

62 

146 

80

70 

62 

58 

85 

89

10,311

Suspended sediment

Mean

concentration 

(percent)

0.56 

.33 

.33 

.08 

.05 

.04 

.09 

.06 

.06 

.10

.08 

.03 

.05 

.10 

.02 

0 

.04 

.02 

0 

.01

.02 

0 

0 

.24 

.15

.08 

.04 

.02 

.09 

.84

--

Tons 

per 

day

23,300 

13, 500 

8,710 

937 

605 

499 

1,120 

771 

771 

1,300 

1,040 

374 

662 

751 

69 

0 

93 

43 

0 

19

36 

0 

0 

2/3, 050 

324

151 

87 

31

2/595 

2/2,310

61, 130

year (second-foot-days) - - 187,077 

(tons) 1,466,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN--Continued 

RIO CHAMA NEAR ABIQUIU, N. HEX. Contin

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechan

Date

Fcb 15 1049

Aug. 1 - - 

Time

4:30 p.m. 

4:30 p.m. 

4:30 p.m. 

4:30 p.m. 

4:30 p.m.

3:00 p. m. 

2:00 p. m. 

4:00 p.m. 

11:30 a. m. 

11:00 a.m. 

5:00 p.m.

9:00 a.m. 

3:00 p. m. 

2:30 p. m. 

6:00 p. m. 

8:00 a. m. 

6:00 p.m. 

6:00 p. m.

7:00 p.m. 

5:00 p. m. 

6:00 p. m. 

6:00 p. m. 

9:00 a. m. 

1:30 p.m. 

3:00 p.m.

8:00 a. m. 

11:00 a. m. 

9:00 a. m.

Mean 

discharge 

(secondfeet)

40 

72 

27 

780 

1,570

1,420 

1,390 

1,350 

161 

511 

230

1,780 

1,450 

450 

243 

480 

276 

493

238 

421 

269 

212 

' 168 

213 

544

1,540 

483 

80

Suspended 

Mean daily 

concentration 

(percent)

0.04 

.58 

.01 

.31 

.40

.16 

.17 

.16 

.39 

.12 

.04

.12 

.06 

.01 

.33 

1.78 

.03 

2.63

.03 

3.63

.77 

.48 

.08 

2.18 

1.55

.56 

. 10 

.15

Weight of 

material 

in tube 

(grams)

0. 1798 

.2987 

.0411 

.9302 

1.2758

.4223 

.3359 

1. 3006 

.2058 

.3577 

.1270

.2590 

.0381 

.0372 

.5073 

.7871 

. 1758 

1. 4349

.0892 

1. 2896 

.5788 

1. 0726 

.2908 

.4101 

1. 1140

1. 2872 

.2598 

.0481

Percent 

0.002

0 

68 

4 

4

3 

3 

3 

44 

23 

38

10 

39 

35 

20 

26 

30 

28

24 

16 

25 

49 

62 

41 

6

/9 

34

0.004

14 

81 

7 

12

11 

11 

28 

65 

33 

51

12 

41 

42 

43 

48 

50 

33

36 

43 

56 

63 

67 

60 

11

13

47

0.008

67 

92 

90 

40

27 

17 

37 

82 

45 

67

14 

45 

47 

56 

63 

60 

43

46 

57 

69 

77 

80 

76 

15

19 

61

0.016

92 

100 

100 

65

38 

24 

49 

92 

59 

85

18 

51 

56 

77 

79 

71 

58

53

77 

86 

90 

91 

92 

26

27 

81
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO CHAMA NEAR CHAMITA, N. HEX.

LOCATION. At gaging station 200 feet downstream from Espanola-Ojo Caliente highway bridge,

2J miles upstream from mouth, and 2| miles northwest of Chamita, Rio Arriba County. 

RECORDS AVAILABLE. Sediment records: October 1947 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum 65,900 tons per day July 23; minimum, 0 tons

per. day on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum 83,700 tons per day May 27, 1948; minimum, 0

tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

2

1 n

i ft

9ft

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

23 

22 

22 

20 

23 

24 

23 

20 

18 

19

16 

14 

16 

15 

15

1C 

10 

9.0 

17 

20 

42 

44 

49 

500 

500 

490 

480 

132 

79 

13d 

120

2,934

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.01 

.01 

.01 

.02 

.01 

.01 

.01 

0

0 

0 

0 

0 

0

0 

0 

.01 

.01 

.72 

.87 

.43 

.38 

.12 

.05 

.05 

.03 

.02 

.02 

.67 

.36

Tons 

per 

day

12 

12 

6 

5 

6

13 

6 

5 

5 

0 

0 

0 

0 

0 

0

0 

0 

2 

5 

389 

987 

570 

503 

1,620 

675 

662 

389 

71 

43 

2,460 

2,790

11,240

November

Mean 

discharge 

(secondfeet)

124 

100 

82 

63 

63 

58 

54 

49 

47 

45

45 

42 

42 

40 

42

42 

42 

44 

40 

40 

40 

40 

40 

47 

47 

45 

42 

40 

45 

50

1,540

Suspended sediment

Mean 

concentration 

(percent)

0.69 

.27 

.30 

.36 

.14

.04 

.03 

.02 

.02 

.03 

.02 

.02 

.02 

.02 

.01

.01 

.01 

.01 

.01 

.01 

.01 

0 

0 

.01 

.02 

0 

0 

0 

0 

.01

Tons 

per 

day

2,310 

729 

664 

612 

238

63 

44 

26 

25 

36

24 

23 

23 

22 

11

11 

11 

12 

11 

11 

11 

0 

0 

13 

25 

0 

0 

0 

0 

14

4,970

December

Mean

charge 

(secondfeet)

47 

52 

58 

49 

45

50 

55 

50 

47 

45

47 

50 

54 

63 

54

44 

38 

45 

37 

30 

33 

42 

47 

47 

40 

35 

47 

58 

45 

37 

45

1,436

Suspended sediment

Mean 

concentration 

(percent)

0.01 

0 

.01 

.01 

.01 

.02 

.02 

.01 

.01 

.02

.04 

.04 

.04 

I/. 03 

.01

.01 

0 

.01 

.01 

.01 

.02 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.02 

.01

~

Tons 

per 

day

13 

0 

16 

13 

12

22 

3C 

14 

1}

24

51

54 

58 

51 

IE

12 

P 

12 

1C 

8 

If 

11 

IS 

1? 

11 

9 

Vs. 

If 

12 

2P

57f

I/Estimated or interpolated.
RIO GRANDE BASIN 313

RIO GRANDE BASIN Continued

RIO CHAMA NEAR CHAMITA, N. HEX.--Continued

Suspended sediment, water year October 1948 to September 1949 Continued 

Day

i ___

2\. 

2"

3".. 

Total-

.......

..

1

1,<. 

1'. 

1C. 

11'. ir. 

2r

2]' 

2f~ ----- 

21 - 

Zf . .....

2«, 

**'"------

TotalJanuary

Mean

charge 

(secondfeet)

55 

65 

54 

50 

40

33 

36 

40 

42 

50 

45 

50 

55 

65 

61

50 

45 

50 

45 

52 

50 

47 

50 

55 

60

58 

52 

45 

40 

35 

32

1,507

Suspended sediment

Mean 

concentration 

(percent)

0.01 

0 

0 

.01 

0

0 

0 

0 

.01 

.02 

.02 

.01 

.01 

.01 

.02

.01 

.01 

0 

.02 

0 

.01 

.03 

.04 

.03 

.02

.01 

.01 

.01 

.01 

0 

.01

Tons 

per 

day

15 

0 

0 

14 

0 

0 

0 

0 

11 

27 

24 

14 

15 

18 

33

14 

12 

0 

24 

0 

14 

38 

54 

45 

32

16 

14 

12 

11 

0 

9

466

April

1,250 

1,300 

1,300 

850 

250 

320 

427 

445 

481 

445 

313 

313 

409 

472 

540 

590 

640 

745 

822 

958 

958 

1,070 

1,180 

1,370 

1,420 

1,580 

1,250 

1,240 

1,480 

1,630

26,048

0.15 

.14 

.04 

.04 

.08

.32

.97 

.41 

.38 

I/. 28 

I/. 19 

.08 

.09 

. 15 

.16 

.12 

- .10 

.13 

.22 

.16

.11 

.30 

.24 

.26 

.22 

.32 

.44 

.53 

.59 

.84

--

5,060 

4,910 

1,400 

918 

405

2,760 

11,200 

4,930 

4,940 

3,360 

1,610 

676 

994 

1,910 

2,330

1,910 

1,730 

2,610 

4,880 

4,140 

2,850 

8,670 

7,650 

9,620 

8,430 

13,700 

14, 800 

17, 700 

23', 600 

37,000

208,700

February

Mean

charge 

(secondfeet)

30 

32 

40 

50 

55 

50 

45 

40 

38 

35 

37 

45 

55 

45 

350

1,490 

1,560 

1,580 

1,590 

1,580 

1,610 

1,580 

1,580 

1,590 

1,610

1,690 

1,660 

1,650

21,717

Suspended sediment

Mean 

concentration 

(percent)

0 

0 

0 

.02 

.02 

.02 

.01 

0 

.01 

0 

.01 

.02 

.02 

.02 

.41

.71 

.59 

.49 

.39 

.20 

.08 

.08 

.08 

.07 

.09

.08 

.08 

.09

Tons 

per 

day

0 

0 

0 

27 

30

27 

12 

0 

10 

0 

10 

24 

30 

24 

2/12, 700 

28, 600 

24,900 

20,900 

16, 700 

8,530 

3,480 

3,410 

3,410 

3,010 

3,910

3,650 

3,590 

4,010

141, 000

May

1,400 

1,270 

1,360 

1,230 

1,030

899 

767 

745 

745 

789 

1,130 

1,270 

1,220 

1,080 

1,250

1,150 

1,000 

850 

1,100 

1,590

1,550 

1,550 

1,750 

1,970 

2,420 

2,190 

1,900 

2,110 

2,420 

2,310 

1,850

43,895

0.83 

.62 

.44 

.60 

.58

.19 

.22 

.18 

.30 

.21 

.45 

.60 

.39 

.42 

.40

.53 

.33 

.18 

I/. 25 

.46

.59 

.37 

.66 

.35 

.56 

.33 

.22 

.44 

.24 

.16 

.28

12, 500 

21, 300 

16, 200 

19,900 

16,100

4,610 

4,560 

3,620 

6,030 

4,470 

13, 700 

20,600 

12,800 

12,200 

13, 500

16,500 

8,910 

4,130 

7,420 

19,700

24, 700 

15, 500 

31,200 

18, 600 

36, 600 

19, 500 

11,300 

25, 100 

15, 700 

9,960 

14,000

460, 900

March

Mean

charge 

( second - 

feet)

1,620 

1,590 

1,590 

1,660 

1,720

1,760 

1,700 

1,810 

1,590 

1,550 

1,550 

1,580 

1,540 

1,510 

1,520

1,520 

1,540 

1,510 

1,470 

1,470 

1,450 

1,410 

1,400 

1,400 

1,370

1,370 

1,330 

1,310 

1,310 

950 

650

45, 750

Suspended sediment

Mean 

concentration 

(percent)

0.06 

.06 

.04 

.12 

.19

.23 

.14 

.20 

.17 

.08 

.14 

.30 

.16 

.10 

.11 

.17 

.26 

.10 

.07 

.08 

.06 

.08 

.04 

.04 

.04

.03 

.03 

.02 

.02 

.02 

.14

Tons 

per 

day

2,620 

2,580 

1,720 

5,380 

8,820

10,900 

6,430 

9,770 

7,300 

3,350 

5,860 

12,800 

6,650 

4,080 

4,510

6,980 

10,800 

4,060 

2,780 

3,180 

3,130 

2,280 

1,510 

1,510 

1,480

1,110 

1,080 

707 

707 

513 

2,460

137, 100

June

1,800 

1,650 

1,850 

1,480 

1,450 

1,410 

1,400 

1,400 

1,380 

1,400 

1,180 

1,110 

1,360 

1,440 

1,180 

1,090 

1,090 

1,130 

1,520 

2,000

1,520 

1,200 

850 

890 

1,030 

962 

822 

669 

636 

508

37, 407

0.21 

.08 

.10 

I/. 12 

I/. 13 

I/. 14 

.16 

.16 

.02 

.22 

.24 

.10 

.20 

.14 

.05

.18 

.14 

.08 

.18 

.65

.11 

.10 

.02 

.04 

.16 

.04 

.07 

.08 

.03 

.02

10, 200 

3,560 

5,000 

4,800 

5,090

5,330 

6,050 

6,050 

745 

8,320 

7,650 

3,000 

7,340 

5,440 

1,590

5,300 

4,120 

2,440 

7,390 

35, 100

4,510 

3,240 

459 

961 

4,450 

1,040 

1,550 

1,450 

515 

274

153,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
314 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO CHAMA NEAR CHAMITA, M. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Da;

19

1 ft

9n

no

24

no

97

op

29

on

31 

TotalJuly

Mean 

discharge 

(secondfeet)

352 

370 

352 

334 

340

334 

275 

206 

210 

225

428 

328 

672 

730 

508 

500 

508 

400 

265 

280

305 

500 

900 

600 

500 

400 

350 

300 

280 

270 

260

12,282

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.17 

.08 

.36 

.02

.03 

.04 

.02 

I/. 05 

.11

1.98 

.70 

1.56 

1.90 

.28 

.26 

.08 

I/. 05 

.03 

.04

. 16 

1.30 

2.71 

1.88 

1.19 

.53 

.22 

.06 

.05 

.18 

.08

Tons 

per 

day

380 

1,700 

760 

3,250 

184

271 

297 

111 

284 

668

2/23, 200 

6,200 

2/36,000 

2/39, 500 

3,840 

3,510 

1,100 

540 

215 

302

1,320 

17, 600 

65,900 

30, 500 

16, 100 

5,720 

2,080 

486 

378 

1,310 

562

264,300

Total discharge for year (second-foot-days 

Total load for year (tons) 

August

Mean 

discharge 

(secondfeet)

250 

230 

230 

190 

170

220 

300 

458 

240 

305

174 

145 

124 

112 

118 

112 

235 

473 

159 

138

120 

115 

108 

102 

170 

304 

1,100 

951 

940 

973 

1,320

10, 586

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.04 

.06 

.42 

.16 

.30 

.96 

2.54 

1.91 

.45

.72 

.18 

.06 

.05 

.04 

.04 

.47 

2.23 

.63 

.15

.10 

.07 

.04 

.04 

.98 

2.47 

1.32 

.63 

.42 

.45 

.42

Tons 

per 

day

202 

248 

373 

2,150 

734 

1,780 

7,780 

31,400 

12,400 

3,710

3,380 

705 

201 

151 

127 

121 

2/9,590 

2/31, 200 

2,700 

559

324 

217 

117 

110 

4,500 

19, 800 

39, 200 

16, 200 

10, 700 

11,800 

15,000

227, 500

September

Mean 

discharge 

(secondfeet)

1,390 

1,460 

1,120 

550 

470

472 

472 

472 

486 

532

508 

479 

479 

437 

194 

102 

88 

71 

64 

55

51 

44 

46 

53 

141 

91 

66 

51 

60 

178

10,682

Suspended sediment

Mean 

concentration 

(percent)

0.24 

.21 

.12 

.06 

.04

.03 

.02 

.02 

.34 

.17 

.24 

.03 

.14 

.04 

.05 

.01 

.03 

.02 

.01 

0

0 

0 

.02 

.04 

.26 

.09 

.06 

.06 

.14 

I/. 75

Tons 

per 

day

9,011 

8,281 

3,631 

89' so-*

381! 25" 

255 

4,461 

2,421

3,290 

389 

1,811 

472 

262 

28 

71 

38 

17 

0

0 

0 

25 

2/163 

9F" 

221 

1C7 

83 

227 

3,600

41,8fO

 1,650,000

J/Estimated or interpolated.

2/Sediment discharge computed by subdividing day
RIO GRANDE BASIN Continued 

RIO CHAMA NEAR CHAMITA, N. MEX. Conti

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechan

Date

TTaH 9fi

Sept. 28 -----------------

Time

6:30 a. m. 

6:00 p. m. 

7:30 a.m. 

11:00 a.m. 

11:00 a.m.

5:00 p.m. 

6:00 p.m. 

8:00 a. m. 

6:00 p. m. 

12:50 p.m.

6:00 p. m. 

6:00 p.m. 

7:00 a. m. 

6:00 p. m. 

3:00 p. m.

1:00 p. m. 

7:00 p. m. 

6:00 p. rc. 

7:00 a. m. 

7:30 a. m.

6:00 p. m. 

2:00 p.m. 

6:30 a. m. 

6:30 p. m. 

6:30 a. m.

12:00 M. 

10:00 a.m.

Mean 

discharge 

(secondfeet)

23 

20 

124 

1,490 

1,580

1,550 

1,470 

1,250 

958 

1,400

789 

1,590 

2,000 

352 

225

428 

672 

280 

900 

250

305 

473 

138 

170 

1,390

508 

91

Suspended 

Mean daily 

concentration 

(percent)

0.02 

.72 

.69 

.71 

.20

.08 

.08 

.15 

.16 

.33

.21 

.46 

.65 

.04 

.11

1.98 

1.56 

.04 

2.71 

.03

.45 

2.23 

.15 

.98 

.24

. 24 

.09

Weight of 

material 

in tube 

(grams)

0. 0767 

.3287 

.9269 

2.6181 

.3802

.3438 

.3286 

.4276 

.4465 

1. 1431

.8750 

1. 1090 

1.4522 

.4533 

.3577

.5770 

1.4342 

.0801 

.4921 

.1036

1. 0890 

.5653 

.3674 

.8636 

.9598

.4638 

.1784

Percent 

0.002

24 

3 

62 

6 

2

4 

25 

16 

26 

20

4 

19 

17 

29 

30

30 

42 

41 

31 

37

5 

36 

21 

16 

8

23 

28

0.004

50 

9 

81

7

13 

36 

20 

41 

23

6 

23 

41 

55 

55

53 

55 

58 

49 

52

46 

53 

56 

50 

14

34 

49

0.008

74 

41 

94 

15 

12

22 

46 

27 

52 

31

8 

34 

53 

68 

65

67 

75 

67 

61 

60

59 

70 

68 

68 

18

48 

70

0.016

89 

81 

99 

18 

22

33 

58 

37 

65 

35

11

44 

71 

83 

84

84 

88 

74 

77 

78

78 

86 

82 

86 

26

56 

89
316 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

GALISTEO CREEK AT DOMINGO, N. HEX.

LOCATION. At gaging station in Santo Domingo Pueblo Grant, at highway bridge, 0.3 mile

northeast of Domingo, Sandoval County, 2| miles east of Santo Domingo Pueblo and

4 miles upstream from mouth.

RECORDS AVAILABLE. Sediment records: January 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 336,000 tons per day August 3; minimum 0

tons per day on many days. ' 

EXTREMES, 1947-49. Sediment loads: Maximum, 336,000 tons per day August 3, 1949;

minimum, 0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

5 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2 

1 

0 

0

8

Suspended sediment

Mean 

concentration 

(percent)

1/2.33

1.73 

.61

Tons - 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

2/315 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

93 

16 

0 

0

424

November

Mean

charge 

(secondfeet)

1 

1 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

2

Suspended sediment

Mean 

concentration 

(percent)

1.73 

I/. 80

-

Tons 

per 

day

47 

22 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

69

December

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

-

Tons 

per 

day

t

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN 317

RIO GRANDE BASIN Continued

GALISTEO CREEK AT DOMINGO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

15 ......

1 8

,x<<

'i 

Total2

<» __

f< ...... 3:7 

<i 

TotalJanuary

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

1

1 

1

0 

0 

0

0 

0 

0 

0

1

2 

2 

0 

0 

0

0 

1

1 

0 

0 

0

10

Suspended sediment

Mean 

concentration 

(percent)

1/0. 10

.11 

.10

I/. 12

I/. 10 

I/. 10

.13

I/. 10

-

Tons 

per 

day

0

0 

0 

0 

0

0 

0 

0 

0 

3

3 

3

0 

0 

0

0 

0 

0 

0 

3

5 

5 

0 

0 

0 

0 

4 

3 

0 

0 

0

29

April

0

0 

0 

0 

0

0 

0 

0 

2 

3 

1 

1 

9 

1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

17

1.50 

.62 

.75 

1.69 

2.12 

.96

0 

0 

0 

0 

0

0 

0 

0 

81 

50 

20 

46 

515 

26 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

738

February

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

2 

0 

0 

0 

1

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0

3

Suspended sediment

Mean 

concentration 

(percent)

0.18 

V. 15

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

10 

0 

0 

0 

4

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0

14

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

1 

2 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

3

0.20 

.78

"

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

5 

2/63 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

68

March

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0

1

0

1

Suspended sediment

Mean 

concentration 

(percent)

J/. 15

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

'0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

4 

0

4

June

0 

0 

0 

0 

0

0 

0 

0 

0 

2 

1 

0 

0 

0 

0

0 

0 

0 

518 

8

0 

3 

1

0 

0 

0 

0 

0 

0 

0

533

1.47 

.32

J/3.98 

1.26

1.78 

.24

0 

0 

0 

0 

0

0 

0 

0 

0 

2/100 

2/14 

0 

0 

0 

0

0 

0 

0 

2/108,000 

272

0 

2/246 

6 

0 

0 

0 

0 

0 

0 

0

108, 600

.I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
318 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

GALISTEO CREEK AT DOMINGO, N. MEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Contlnued

Day

1 

O

13

1 0

22

23

24

25 

29

30

31 

TotalJuly

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

3 

57 

35 

205 

833 

1

0 

0 

6 

25 

27 

118 

755 

457 

96 

2 

0 

0 

0 

0 

59 

128

2,807

Suspended sediment

Mean 

concentration 

(percent)

0.25

4.44 

3.25 

6.50 

5.78 

1/1.0

!/. 35 

3.66 

2.89 

2.79 

5.84 

4.74 

3.75 

1/2.35

.88 

3.74

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

2/104

2/7,220 

2/4,390 

2742, 500 

2/260, 000 

27

0 

0 

2/415 

2/7, 280 

2/6, 510 

2/36,400 

2/202,000 

2/112,000 

2/11,900 

127 

0 

0 

0 

0 

2/16, 900 

2/18,000

725,800

August 

Mean 

discharge 

( second - 

feet)

60 

97 

1,160 

242 

28 

1 

249 

175 

10 

0

0 

0 

0 

0 

0

0 

3 

9 

5 

0 

0 

0 

0 

0 

1 

59 

1 

0 

0 

0 

0

2,100

Suspended sediment

Mean 

concentration 

(percent)

4.36 

4.86 

5.11 

5.64 

2.57

.25 

1.84 

3.12 

1.16

3.19 

2.28 

1.21

I/. 12 

3.95 

2.50

"

Tons 

per 

day

2/8, 140 

15, 100 

2/336, 000 

2/51,200 

2/3,380 

7 

2/67, 700 

2/21,500 

2/632 

0

0 

0 

0 

0 

0

0 

2/482 

2/667 

2/222 

0 

0 

0 

0 

0 

2/111 

2/8,940 

67 

0 

0 

0 

0

514, 100

September

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

36

1

0 

1 

3 

1

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

59 

205 

669

375

Suspended sediment

Mean 

concentration 

(percent)

2.88 

5.66

1/1.0 

.91 

I/. 9

1/1.5 

8.68 

6.41

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

2/7,010

153 

0 

27 7' 

2«

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2/23,200 

2/52,900 

2/164,000

247, 4CO

Total discharge for year (second-foot-days) 

Total load for year (tons) -

6,459 

1,597, OCO

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN Continued 

GALISTEO CREEK AT DOMINGO, N. HEX. Cont

Particle-size analyses of suspended sediment, November 1948 

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

W, in distilled water; C, chemically dispersed; M, mech

Date

Sept. 30 

Time

7:05 a. m. 

4:10 p. m. 

1:05 p. m.

5:05 a. m. 

5:05 a. m. 

12:45 p. m. 

12:45 a.m. 

10:00 p. m.

9:30 p. m. 

7:00 p. m. 

4:00 p.m. 

7:05 a.m. 

9:50 a.m.

Mean 

discharge

(secondfeet)

1 

1 

3

2

8 

57 

755 

59

1,160 

242 

5 

36 

669

Suspend

Mean daily 

concentration 

(percent)

1.73 

.11 

.62

1.47 

1.26 

4.44 

5.84 

.88

5.11 

5.64 

1.21 

2.88 

6.41

Weight of 

material 

in tube 

(grams)

1.8641 

.4873 

. 1495

1.5192 

.3256 

1.0259 

1.0443 

.9721

1. 5372 

.5286 

.1635 

.3203 

1. 1481

Percen

0.002

3 

0 

48

18 

74 

19 

23 

10

13 

13 

13 

16 

10

0.004

3 

65

60 

90 

58 

30 

29

23 

20 

67 

51 

35

0.008

14 

16 

82

77 

99 

76 

37 

37

31 

28 

84 

73 

45

0.01
WESTERN GOLF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

JEHEZ RIVER NEAR BERNALILLO, N. HEX.

LOCATION. At gaging station about 2 miles upstream from mouth and 6.2 miles north of

Bernalillo, Sandoval County.

DRAINAGE AREA. 1,040 square miles (approximation). 

RECORDS AVAILABLE. Sediment records: April 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 48,600 tons per day April 15; minimum,

0 tons per day on many days. 

EXTREMES, April 1948-September 1949. Sediment loads: Maximum, 48,600 tons per day

April 15; minimum, 0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-supply Papers 1148 and 1178.

Suspended sediment, water year October 1948 to September 1949

Day

ID

19 ...... 

20 ------ 

21 

22 

23 

24 

25 

26 

27 ------ 

28 ------ 

29 ------ 

30 

31 ......

TotalOctober

Mean 

discharge 

(secondfeet)

12 

8 

4 

2 

0 

0 

0 

1 

7 

0

0 

0 

0 

4 

6 

2 

0 

0 

1 

6

9

e

8 

6 

3

2 

1 

4 

7 

8 

42

151

Suspended sediment

Mean 

concentration 

(percent)

0.76 

U. 50 

I/. 30 

I/. 10

I/. 10 

.23

.48 

1.32 

.24

.14 

.17

.63 

.42 

.96 

.48 

.42

.26 

.08 

.67 

.99 

1.02 

2.67

Tons 

per 

day

246 

108 

32 

5 

0 

0 

0 

3 

43 

0

0 

0 

0 

2/181 

214 

13 

0 

0 

4 

28

153 

91 

207 

78 

34

14 

2 

72 

187 

220 

2/5,200

7,140

November

Mean

charge 

(secondfeet)

23 

1 

9

14 

8

7 

9 

9 

6 

17

9 

11 

3

6 

12 

11 

14 

5 

4 

16

14 

17 

15 

15 

23

23 

11 

10 

11 

20

353

Suspended sediment

Mean 

concentration 

(percent)

2.06 

.77 

.97 

1.06 

.40 

.27 

.44 

.51 

.29 

.40 

.39 

.46 

.42 

.25 

.27 

.24 

.36 

.12 

.18 

.74

.24 

.48 

.56 

.33 

.51

.08 

.04 

.14 

.12 

.44

--

Tons 

per 

day

1,280 

21 

236 

401 

86 

51 

107 

124 

47 

184

95 

137 

34 

40 

87 

71 

136 

16 

19 

320

91 

220 

227 

134 

317

50 

12 

38 

 36 

238

4,860

December

Mean

charge 

( second - 

feet)

22 

31 

24 

20 

10 

8 

6 

6 

8 

10

10 

10 

12 

16 

28 

25 

34 

40 

18 

17

30 

36 

29 

25 

13 

17 

23 

49 

19 

18 

18

632

Suspended sediment

Mean 

concentration 

(percent)

0.20 

I/. 30 

I/. 20 

I/. 20 

I/. 20 

.48 

.23 

.94 

.50 

.36

.52 

.90 

.35 

.34 

.35 

.34 

.31 

.34 

.24 

.52

.40 

.47 

.28 

I/. 52 

.76

.39 

.41 

.39 

.37 

.39 

.53

Tons 

per 

day

119 

251 

130 

106 

54

104 

37 

152 

108 

97

140 

243 

113 

147 

265 

230 

285 

367 

117 

239

324 

457 

219 

351 

267

179 

255 

516 

190 

190 

258

6,510

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN 321

RIO GRANDE BASIN Continued

JEMEZ RIVER NEAR BERNALILLO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

i; ------

^

n

J- . ____

o"

2l-!

3'

Total-

<

,,',

,

2i: 

2' 

23 

2;' 

2.<- 

2' 

2C. 

21 

2'- 

2<i 

311 

3'. 

TotalJanuary

Mean

charge 

(secondfeet)

20 

IS 

10 

0 

0

0 

1 

2 

3 

2

1 

2 

10 

8 

5

3 

1 

1 

1 

10 

60 

35 

40 

45 

45 

10 

15 

5 

2 

1 

1

354

Suspended sediment

Mean 

concentration

(percent)'

0.29 

.33 

.11

.03 

.11 

.02 

.26

.50 

.54 

I/. 58 

.32 

.39

.06 

.04 

.03 

.04 

.02

.16 

.22 

.51 

.47 

.26 

.22 

.36 

.04 

.01 

.02 

.03

Tons 

per 

day

157 

134 

30 

0 

0

0 

1 

6 

2 

14

14 

29 

157 

69 

53

5 

1

1 

1 

5

259 

208 

551 

571 

316 

59 

146 

5 

1 

1 

1

2,800

April

49 

45 

49 

58 

84

108 

148 

206 

327 

381 

345 

372 

538 

846 

1,170 

1,060 

846 

750 

526 

526

502 

502 

550 

586 

562 

410 

293 

460 

550 

460

13,309

0.29 

.22 

.31 

.33

.44

.30 

.52 

.52 

.76 

.76 

.38 

.43 

1.14 

1.16 

1.54

1.30 

.74 

.99 

.80 

.70 

.70 

.82 

.66 

.66 

.55 

.50 

.57 

.45 

.51 

.70

-

384 

267 

410

517 

998

875 

2,080 

2,890 

6,710 

7,820 

3,540 

4,320 

16, 600 

26, 500 

48, 600

37, 200 

16, 900 

20, 000 

11,400 

9,940

9,490 

11, 100 

9,800 

10, 400 

8,350 

5,540 

4,510 

5,590 

7,570 

8,690

299, 000

February

Mean

charge 

(secondfeet)

0 

0 

2 

2 

2

1 

1

5 

0

1

2 

4 

8 

5 

10

14 

20 

23 

21 

24

29 

31 

29 

28 

40 

38 

28 

34

402

Suspended sediment

Mean 

concentration 

(percent)

0.24 

.40 

.22

.09 

.27 

.09

.11 

.21 

.51 

.37 

.32 

.22

.33 

.31 

.41 

.26 

.22

.30 

.25 

.49 

.42 

.46 

.39 

.24 

.42

Tons 

per 

day

0 

0 

13 

22 

12 

2 

7 

12 

0 

3

11 

55 

80 

43 

59

125 

167 

255 

T47 

143

235 

209 

384 

318 

497 

400 

181 

386

3,770

May

586 

490 

450 

470 

450

490 

460 

480 

526 

652 

680 

514 

514 

480 

420

279 

237 

188 

182 

130 

100 

79 

104 

104 

111 

104 

108 

97 

70 

60 

40

9,655

0.31 

.32 

.39 

.38 

.34

.34 

.34 

.37 

.38 

.36 

.56 

.38 

.44 

.26 

.23

.40 

.17 

.08 

.08 

.07 

.12 

.15 

.14 

.18 

.18 

.15 

.10 

.14 

.22 

.11 

.12

4,900 

4,230 

4,740 

4,820 

4,130

4,500 

4,220 

4,800 

5,400 

6,340 

10,300 

5,270 

6,110 

3,370 

2,610

3,010 

1,090 

406 

393 

246 

324 

320 

393 

505 

539 

421 

292 

367 

416 

178 

130

84,770

March

Mean

"charge 

(secondfeet)

29 

23 

25 

26 

25

30 

46 

52 

57 

53 

50 

43 

39 

33 

31

34 

52 

53 

70 

60

60 

50 

48 

52 

65 

82 

62 

57 

55 

70 

48

1,480

Suspended sediment

Mean 

concentration 

(percent)

0.39 

.20 

.20 

.27 

.22

.28 

.24 

.19 

.40 

.24

.27 

.23 

.25 

.22 

.20

.20 

.32 

.36 

.42 

.46 

.28 

.35 

.34 

.40 

.42 

.30 

.28 

.26 

.59 

.54 

.36

Tons 

per 

day

305 

124 

135 

190 

148

227 

298 

267 

616 

343

364 

267 

263 

196 

167 

184 

449 

515 

794 

745

454 

472 

441 

562 

737 

664 

469 

400 

876 

1,020 

467

13, 160

Tune

34 

32 

18 

1C 

13

17 

23 

14 

23 

19 

23 

38 

28 

10 

11

11 

12 

14 

15 

14

14 

24 

14 

10 

8 

3 

0 

0 

0 

0

452

0.10 

I/. 09 l/.ffl

.05 

.02

.07 

.07 

.08 

.08 

.09 

.07 

.08 

.11 

.12 

.14

.08 

I/. 03 

I/. 03 

.03 

.04

.07 

.42 

.27 

.42 

.10 

.04

92 

78 

34 

14

7

32 

43 

30 

50 

46 

43 

82 

83 

32 

42

24 

10 

11 

12

15

26 

272 

102 

113 

22 

3 

0 

0 

0 

0

1,320

I/Estimated or Interpolated.
322 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

JEMEZ RIVER NEAR BERNALILLO, N. MEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

O

1 Q

21

22

23

25

27

29

30

31 

TotalJuly

Mean 

dlfecharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

6 

19 

56 

40 

22

12 

9 

1 

0 

0

11 

29 

24 

138 

62

68 

43 

20 

5 

0 

0

565

Suspended sediment

Mean 

concentration 

(percent)

3.21 

4.83 

2.95 

1.80 

.83

I/. 51 

.43 

.48

.79 

3.15 

2.74 

3.81 

2.23

1.19 

.66 

.36 

.12

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

2/1,040 

2,480 

4,460 

1,940 

493

165 

104 

13 

0 

0

2/1, 690 

2,470 

1,780 

2/18, 400 

2/3, 730

2,180 

766 

194 

16 

0 

0

41, 920

Total discharge for year (second-foot-day 

Total load tor year (tons) - --

August

Mean 

discharge 

(secondfeet)

13 

1 

9 

43 

8

« 3 

6 

43 

56 

52 

28 

12 

1 

0 

0

0 

0 

18 

1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

294

Suspended sediment

Mean 

concentration 

(percent)

2.75 

3.68 

1.73 

3r65 

2. 26 

1/2.0 

1.07 

4.20 

3.80 

3.45 

1.48 

.48 

I/. 3

3.43

I/- 3

--

Tons 

per 

day

2/2, 180 

99 

2/1, 130 

4,240 

488

160 

2/1, 180 

4,880 

5,750 

4,840 

1,120 

156 

8 

0 

0

0 

0 

2/2, 930 

8 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

29, 170

September

Mean

charge 

(second - 

feet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8 

1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

32 

5

46

Suspended sediment

Mean 

concentration 

(percent)

4.80 

4.65

2.28 

5.72

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2/2, 170 

126

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2/5, 280 

772

8,350

 502,800

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN Continued 

JEMEZ RIVER NEAR BERNALILLO, N. HEX. Co

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechan

Date Time

10:00 a.m. 

3:00 p.m. 

2:00 p.m. 

5:00 p. m. 

4:30 p.m. 

11:00 a. m.

11:00 a. m. 

2:00 p.m. 

5:00 p.m. 

2:00 p.m. 

4:00 p.m. 

10:00 a. m.

5:00 p.m. 

1:00 p.m. 

5:00 p.m. 

1:15 p. m. 

2:00 p. m. 

3:00 p.m.

2:00 p. m. 

3:00 p.m. 

.0:30 a. m. 

10:00 a. m. 

.0:00 a. m. 

10:00 a. m. 

11:00 a.m. 

11:00 a. m.

8:00 a.m. 

8:00 a.m. 

3:00 p. m.

Mean 

discharge 

(secondfeet)

12 

6 

42 

23 

17 

16

22 

10 

17 

20 

2 

10

1 

24 

29 

53 

53 

60

49 

381 

846 

1,170 

1,060 

846 

526 

460

586 

652 

130

Suspended 

Mean daily 

concentration 

(percent)

0.76 

.17 

2.67 

2.06 

.40 

.74

.20 

.36 

.52 

.29 

.26 

.02

.11 

.22 

.39 

.24 

.24 

.46

.29 

.76 

1.16 

1.54 

1.30 

.74 

.70 

.70

.31 

.36 

.07

Weight of 

material 

in tube 

(grams)

0. 6148 

.8001 

1.4050 

1.1458 

1.3936 

2.6435

.4203 

1.0527 

.4964 

1.2557 

.8050 

.0853

.5425 

.6002 

1.3905 

.8481 

.4914 

.1828

.9139 

.6301 

.6392 

1.7595 

.5034 

.6415 

.6872 

1.3356

1.0720 

1.5384 

.2334

Percent 

0.002

0 

0 

0 

58 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

1

12 

14 

16 

10 

8 

13 

6

11 

8 

14

0.004

5 

3 

2 

69 

2 

1

4 

1 

4 

2 

2 

16

4 

2 

1 

2 

2 

14

3 

17 

21 

17 

15 

23 

17 

8

14 

11 

18

0.008

10 

8 

3 

80 

4 

1

25 

8 

20 

9 

13 

29

8 

44 

2 

7 

14 

35

12 

21 

27 

24 

19 

25 

22 

10

17 

14 

30

0.016

8

5

5

8

5

6

3

32 

3

29 

23 

34

1

49 

49 

46 

4

5

30 

27 

34 

29 

25 

30 

27 

12

2

17 

38
RIO GRANDE BASIN Continued 

JEMKZ RIVER NEAR BERNALILLO, N. HEX.--C

Particle-slse analyses of suspended sediment, water year October 1948 

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

W, in distilled water; C, chemically dispersed; M, mechan

Date Time

8:00 a.m. 

2:00 p. m. 

8:00 a. m. 

12:00 m.

10:30 a.m. 

11:00 p.m. 

10:30 a. m. 

2:30 a.m. 

11:15 a. m.

Mean 

discharge 

(secondfeet)

34 

19 

14 

14

56 

11 

13

52 

8

Suspended 

Mean daily 

concentration 

(percent)

0.10 

.09 

.04 

.04

2.95 

.79 

2.75 

3.45 

4.80

Weight of 

material 

in tube 

(grams)

0 . 2991 

.3597 

.0610 

.2278

1.3614 

1.3699 

.4263 

.8980 

.8258

Percent 

0.002

18 

15 

47 

21

27 

8 

39 

10 

50

0.004

23 

22 

55 

26

42 

51 

57 

40 

73

0.008

29 

28 

61 

34

54 

63 

72 

52 

94

0.016

34 

33 

64 

41

64 

72 

83 

65 

96
RIO GRANDE BASIN 325

RIO GRANDE BASIN Continued 

RIO PUERCO BELOW CABEZON, N. HEX.

LOCATION. One-fourth mile upstream from mouth of Chico Arroyo, 4i miles southwest of 

Cabezon, Sandoval County, and 5J miles downstream from gaging station at Cabezon.

RECORDS AVAILABLE. Sediment records: April 1948 to September 1949.

EXTREMES, 1948-49. Sediment loads: Maximum, 127,000 tons per day Aug. 6; minimum, 0 

tons per day on many days.

EXTREMES, 1947-49. Sediment loads: Maximum, 127,000 tons per day Aug. 6, 1949; minimum, 

0 tons per day on many days.

REMARKS. Discharge records for gaging station at Cabezon for water year October 1948 to 

September 1949 given in Water-Supply Paper 1148. No appreciable inflow between sampling point and gaging station except-during periods of heavy local runoff.

Suspended sediment, water year October 1948 to September 1949

Day

2

3

18 

19 

20 

21 

22 

28 

24 

25 

26 

27 

28 

29 

30 

81 

TotalOctober

Mean 

discharge 

(secondfset)

0.3 

.2 

.1 

.1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

.1 

1.3 

1.6 

157

160.7

Suspended sediment

Mean 

concentration 

(percent)

1/1.0 

1/2 

1/2 

I/. 2

I/- 2~ 

VL 5 

1/2.0 

8.75

Toas 

per 

day

8 

1 

1 

1 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0

1

53 

86 

2/41,300

41,450

November

Mean

charge 

(second - 

feet)

23 

3 

2 

1 

.6

.3 

.3 

.2 

.1 

.1 

.1 

.1 

.1 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

30.9

Suspended sediment

Mean 

concentration 

(percent)

5.90 

1/3.0 

1/2.5 

1/1.5 

1/1.0 

I/. 8 

I/. 7 

I/. 6 

I/. 5 

1/.4 

1/3 

I/. 3 

I/. 3

Tons 

per 

day

3,660 

243 

135 

40 

16 

6 

6 

3 

1 

1

1 

1 

1 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

, 0 

0

4,110

December

Mean 

discharge 

(second - 

feet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

.2 

0 

0 

0 

0 

0 

0 

.2 

0

0.4

Suspended sediment

Mean 

concentration 

(percent)

1/0.02 

I/. 02

-

Tons 

per 

day

0

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
326 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO PUERCO BELOW CABEZON, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

1 ......

2 ...

3 __ _

4 

5 ......

7 

Q _____

9 ......

10 

n ......

12 

13 

14 

15 

16 

17 

1ft io--»--»

1ft______

Oft ^u------

91-.1------

22--- _ .»

23 ____

24 

25 ----

Oft zo-----* 

27 

*O------ 9ft

29«_-. _

30 

31 

Total1 

2 

3 

4 ...

5 -

6 

7 

g___...

9 

10 

11 ...

12 

13 ......

14 

15 .

16 

17 ......

18 

lg ___ _

20 

21 

22 

23 

24 - 

25 

26 

27 . 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

0 

.1 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

2 

1.5 

.5

.2 

.1 

0 

0 

0 

0 

0 

0 

0 

0 

7 

3 

1 

.5 

0 

0

15.9

Suspended sediment

Mean 

concentration 

(percent)

1/0.01

I/. 20 

I/. 15 

I/. 05

!/. 02 

I/. 01

.48 

.19 

.11 

I/. 05

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

11 

6 

1

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

91 

15 

3 

1 

0 

0

128

April

3.2 

4.3 

3 

5.3 

13

10 

4 

8.7 

11 

10 

9.3 

6.4 

4.6 

4.0 

4.9 

8.2 

7.3 

7.3 

10 

11

9 3 

6.4 

6.0 

8.2 

17 

36 

65 

62 

46 

68

469.4

3.42 

1/2.0 

1.94 

1/2.0 

3.05

4.54 

4.55 

4.98 

4.62 

2.33 

2.28 

2.74 

1/2.5 

1/2.0 

1/2.8 

3.44 

3.42 

2.83 

1/4.0 

4.43

2.58 

3.59 

3.62 

7.80 

8.13 

1/8.0 

1/8.0 

1/6.5 

1/4.8 

1/5.9

295 

232 

157 

286 

1,070

1,230 

491 

1,170 

1,370 

602 

573 

473 

310 

216 

370 

762 

674 

558 

1,080 

1,320

648 

620 

586 

1,730 

3,730 

7,780 

14,000 

10, 900 

5,960 

10,800

70,000

February

Mean

discharge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.1 

.5 

15 

25

50 

70 

90 

120 

100 

70 

40 

20

600.6

Suspended sediment

Mean 

concentration 

(percent)

1/0.01 

.06 

.62 

2.58

3.35 

5.97 

7.30 

10.9 

5.09 

3.91 

2.23 

2.77

--

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

1 

251 

1,740

4,520 

11,300 

17, 700 

35,300 

13,700 

7,390 

2,410 

1,500

95,810

May

97 

76 

76 

55 

39

27 

23 

13 

9.3 

17 

55 

58 

55 

46 

42 

42 

52 

36 

12 

6.0

2.5 

1 

.2 

.1

0 

0 

2 

4 

8.2 

6 

4.5

864.8

1/7.2 

1/6.3 

1/6.3 

5.28 

3.45

3.63 

3.45 

2.54 

2.28 

3.70 

5.80 

5.56 

5.00 

4.99 

4.50 

4.45 

2.98 

2.88 

1.75 

1.63 

.45 

I/. 4 

I/. 2 

l/.l

1/1.45 

1/1.5 

1.68 

1.87 

2.34

18, 900 

12,900 

12,900 

7,840 

3,630

2,650 

2,140 

892 

573 

3,680 

8,610 

8,710 

7,420 

6,200 

5,100 

5,050 

4,180 

2,800 

567 

264

30 

11 

1 

0 

0 

0 

78 

162 

372 

303 

284

116,200

March

Mean

discharge 

(secondfeet)

10 

5 

5 

12 

12 

7 

5 

20 

10 

5

1 

.5 

2 

.5 

.2

.2 

.1 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1.4

9619

Suspended sediment

Mean 

concentration 

(percent)

3.43 

1.54 

3.40 

5.69 

6.10 

3.60 

1/1.72 

4.82 

5.12 

1.91

1.87 

1.88 

1/2.0 

1/1.0 

1/.5

I/. 5 

l/.S

1/1.5

~

Tons 

per 

day

926 

208 

459 

1,840 

1,980 

680 

232 

2,600 

1,380 

258

50 

25 

108 

14 

3

3 

1 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

57

10, 820

June

2 

1.0 

.2 

0 

0

0 

0 

0 

0 

0 

101 

8.2 

1 

.2 

.2 

.2 

1.5 

1 

1.5 

3

1 

.1 

0 

.1 

0 

0 

0 

0 

0 

0

122.2

2.20 

.24 

l/.l

1/7.86 

1/3.25 

1/2.5 

1/1.5 

1/1.5

1/1-5 

2.31 

2.33 

8. 10 

1/4.9

1/2.5 

1/1.7

1/1.7

--

119 

6 

1 

0 

0

0 

0 

0 

0 

0 

2/43, 100 

720 

68 

8 

8 

8 

94 

63 

328 

397

68 

5 

0 

5 

0 

0 

0 

0 

0 

0

45,000

I/Estimated or Interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN

RIO GRANDE BASIN Continued

RIO PUERCO BELOW CABEZON, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949--Continued

Day

1 ......

2 

3 

4 ......

5 

7 

8------

9 _..___..

10 

11 -. -

12 

10Id------

14 

15 

16------

17 

1 10------ Q

19------

9fl fiU------

21 

22 

23------

24 

25--- 

26------

27 

no 4O------

90^Sf------ 

3Q ___

31 

TotalJuly

Mean 

discharge 

(secondfeet)

19 

12 

1.5 

.1 

0 

.2 

.2 

0 

0 

81 

75 

11 

106 

87 

22

2 

.5 

.2 

0 

69

62 

31 

225 

29 

146

31 

2.5 

1.8 

.4 

.1 

0

1,015.5

Suspended sediment

Mean 

concentration 

(percent)

1/1.84 

1/4.3 

1/1.2 

I/. 5

I/. 7 

I/. 7

9.01 

13.2 

7.52 

15.5 

11.4 

5.35

1.44 

1/1.0

I/. 7

6.26

6.26 

8.60 

15.2 

7.75 

12.6 

8.00 

4.98 

3.20 

1/1.75 

1/1.0

Tons 

per 

day

2/4, 000 

1,390 

49 

1 

0 

4 

4 

0 

0 

2/49, 600 

2/45,200 

2/5,430 

2/87,800 

2/45,800 

2/6,930 

78 

14 

4 

0 

2/21,700

2/18,300 

2/12,900 

2/121,000 

6,070 

2/71,000

6,700 

336 

156 

19 

3 

0

504,900

Total discharge for y"ear (second-foot-days 

Total load for year (tons) -

August

Mean

discharge 

( second - 

feet)

0.4 

.2 

33 

16 

1 

234 

39 

25 

76 

68 

5.3 

1.6 

.3 

0 

0

0 

11 

1.2 

. 1 

0 

0 

0 

0 

5.1 

1.2 

.2 

0 

0 

0 

0 

0

518.6

Suspended sediment

Mean 

concentration 

(percent)

1/1.0 

1/1.0 

7.72 

2.60 

1/1.5 

11.6 

6.80 

1/7.0 

8.10 

1/6.1

1/2. 3 

1/1.5 

1/1.0

3.51 

1.60 

1/1.0

1/4.7 

1/1.8

1/1.0

Tons 

per 

day

11 

5 

2/7, 500 

1,120 

40 

127, 000 

7,160 

2/17,800 

16,600 

11,200 

329 

65 

8 

0 

0

0 

2/5,240 

52 

3 

0

0 

0 

0 

647 

58

5 

0 

0 

0 

0 

0

194,800

September

Mean

discharge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

18 

3.4 

.5

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

42 

14

77.9

Suspended sediment

Mean 

concentration 

(percent)

1.93 

1/2.6 

1/1.0

1.49 

4.00

I..-- .-.... ... . . 

 ]

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2/2,880 

240 

14

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

2/6,780 

1,510

11,420

3,973.8 

,095,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

256683 O - 53 - 22
RIO GRANDE BASIN Continued 

RIO PUERCO BELOW CABEZON, N. HEX. Con

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechanica

Date

Oct 31 1948

Time

5:00 a. m. 

1:00 p.m. 

4:30 p.m. 

11:00 a. m.

5:00 p.m. 

5:30 p. m. 

11:00 a. m. 

5:45 p.m. 

2: 15 p.m.

3:00 p.m. 

11:30 p.m. 

4:55 p.m. 

7:00 p. m. 

6:10 p.m. 

9:00 p. m.

Mean 

discharge 

(secondfeet)

157 

25 

10 

5

3.2 

10 

11

11 

17

2 

81 

69 

18 

42 

42

Suspended se

Mean Jaily 

concentration 

(percent)

8.75 

2.58 

3.43 

1.91

3.42 

2.23 

4.43 

4.43 

3.70

2.20 

9.01 

6.26 

1 93 

1.49 

1.49

Weight of 

material 

in tube 

(grams)

1. 1846 

2.4316 

.4925 

.2729

.3222 

.4781 

.3419 

.7158 

.6700

.9651 

.7479 

.4440 

.5094 

.2709 

.7092

Percent fin

0.002

24 

0 

0

0 

18 

35 

36 

32

36 

20 

18 

13 

16 

16

0.004

2 

31 

5 

10

10 

62 

46 

48 

42

56 

29 

26 

33 

23 

25

0.008

6 

43 

10 

35

32 

79 

57 

62 

52

68 

38 

33 

43 

34 

32

0.016

48 

52 

66 

84

77 

90 

70 

75 

61

77 

47 

43 

54 

48 

45
RIO GRANDE BASIN 329

RIO GRANDE BASIN Continued 

RIO PUEHCO AT RIO PUERCO, N. HEX.

LOCATION. At gaging station at Atchison, Topeka and Santa Fe Railway bridge, in hamlet of

Rio Puerco, in San Clemente Grant, Valencia County, 7 miles downstream from San Jose

River.

RECORDS AVAILABLE. Sediment records: July 1948 to September 1949 

EXTREMES,1948-49. Sediment loads: Maximum, 642,000 tons per day July 23; minimum, 0 tons

per day on many days. 

EXTREMES February 1948-September 1949. Sediment loads: Maximum, 642,000 tons per day

July 23, 1949; minimum, 0 ton? per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 eiven in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

If

12

19 ...... 

20 ------ 

21 .. .- 

22 

23 

24 

25 ------

26 

27 ------ 

28 

29 ------ 

30 ------ 

31 - 

TotalOctober

Mean

charge 

(secondfeet)

12 

11

4 

1 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

29 

20 

7 

4

1 

1 

1 

0 

0 

20

111

Suspended sediment

Mean 

concentration 

(percent)

3.10 

2/3.5 

1.35 

.42

2/5.5 

2/9.5 

8.30 

7.00

4.70 

1.80 

.13

2.16

Tons 

per 

day

1,000 

1,040 

200 

11 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

1/8,550 

5,130 

1,570 

756

127 

49

\4 

0 

0 

1/2; 320

21,250

November

Mean

charge 

(secondfeet)

823 

164 

26 

14 

7 

4 

1 

1 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1,045

Suspended sediment

Mean 

concentration 

(percent)

14.3 

9.30 

6.90 

6.62 

6.10 

2/4.9 

4.10 

2.46

Tons 

per 

day

1/346, 000 

41,200 

4,840 

2,500 

1,150 

529 

111 

66 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

396,400

December

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

--

Tons 

per 

day

0

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO PUERCO AT RIO PUERCO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

j»

g

19

18

20

23

27

28

3001

Totalj»

12

19

21 

22 

23 ------

24 

25 

26 

27 

28 

29 

30 

31 - 

TotalJanuary

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

2 

3

2 

1 

1

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

2 

8 

4 

1 

0 

0 

0 

0

24

Suspended sediment

Mean 

concentration 

(percent)

2/.05 

.04

2/.04 

I/. 04 

.04

2/-20 

.26

2/-15 

.09

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

3 

3

2 

1 

1 

0 

0 

0 

0 

ft 

0 

0 

0 

0 

0 

11 

56 

16 

2 

0 

0 

0 

0

95

AprU

0 

2 

1 

1 

1 

0 

0 

0 

0 

0

1

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

16

22

2/3-0 

1/2.0 

2/2-0 

2/1.0

2/2.0 

2/7.5

0 

162 

54 

54 

27

0 

0 

0 

0 

0 

54 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

1/4,040

4,390

February

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

1 

0 

0 

0 

0 

0

1

2 

2 

129 

192 

330 

254 

186 

87

1,184_,

Suspended sediment

Mean 

concentration 

(percent)

2/-04

2/-04 

2/.07 

2/.07 

6.65 

9.06 

9.80 

10.5 

9.18 

7.37

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

1 

0 

0 

0 

0 

0 

1 

4 

4 

23, 200 

1/53,000 

1/93,200 

1/75, 000 

46, 100 

1/18, 200

308,700

May

26 

42 

42 

18 

36 

39 

30 

25 

10 

9 

53 

623 

439 

120 

48

39 

45 

36 

10 

5 

2 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

1,697

8.64 

2/8.4 

2/8-1 

7.93 

8.08 

8.04 

7.66 

7.20 

5.90 

6.00 

4.92 

2/6.8 

5.00 

4.20 

5.47

6.43 

7.68 

7.85 

6.40 

6.78

2/6-0

--

6,070 

9,530 

9,190 

3,850 

7,850 

8,470 

6,200 

4,860 

1,590 

1,460 

1/7, 300 

1/116,000 

59,300 

13, 600 

7,090

6,770 

9,330 

7,630 

1,730 

915

324 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

289, 100

March

Mean

charge 

(secondfeet)

41 

22 

15 

10 

7 

6 

22 

46 

22 

51

24 

7 

7 

11 

3 

1 

1 

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

297

Suspended sediment

Mean 

concentration 

(percent)

2/5.33 

4.10 

3.41 

2/3.0 

2.12 

2.06 

5.85 

7.49 

5.90 

6.35

2/6.6 

6.35 

6.21 

3.74 

2/3.4 

3.22 

2/3.0 

2/2.0

Tons 

per 

day

5,900 

1/2,460 

1,380 

810 

401 

334 

1/4,550 

9,300 

3,500 

1/8,810

4,280 

1,200 

1,170 

1,110 

275 

87 

81 

54 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

45,700

June

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

337 

37 

11 

6 

3 

2 

7 

3 

0 

0

406

2/7.8 

2/14-8 

11.9 

2/9.6 

2/7.4 

2/5.7 

2/4.2 

2/2.8

--

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1/165,000 

1/15,690 

3,530 

1,560 

599 

308 

794 

227 

0 

0

187, 700

I/Sediment discharge computed by subdividing day. 

^/Estimated or interpolated.
RIO GRANDE BASIN 331

RIO GRANDE BASIN Continued

RIO PUERCO AT RIO PUERCO, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 

o

D

1 R

19

99

23

Oft

TotalJuly

Mean 

discharge 

(secondfeet)

0 

0 

80 

24 

6

3 

22 

69 

15 

34

539 

380 

308 

200 

40 

50 

8 

1 

0 

0

119 

142 

1,020 

1,180 

180

403 

77 

16 

7 

2 

30

4,955

Suspended sediment

Mean

concentration 

(percent)

2/6.3 

2/9.2 

7.37

6.89 

6.75 

9.38 

7.27 

9.00

10.7 

17.0 

15.4 

16.6 

11.7 

14.4 

13.2 

2/7.7

9.21 

16.1 

17.6 

15.8 

11.5

12.1 

10.4 

7.71 

2/4.3 

2/1.1 

1/1.4

Tons 

per 

day

0 

0 

1/25,800 

5,960 

1,190

558 

1/4, 840 

1/18,700 

2,940 

8,260

1/212,000 

174,000 

1/143, 000 

89,600 

12,600 

1/20,600 

2,850 

208 

0 

0

1/89,300 

1/66, 600 

1/642,000 

1/535,000 

55, 900

1/140, 000 

21,600 

3,330 

813 

59 

1/3, 750

2,286.000

Total discharge for year (second-foot-day 

Total load for year (tons) ...

August

Mean

charge 

(secondfeet)

66 

45 

137 

269 

211

26 

219 

297 

753 

1,180

355 

44 

13 

3 

0 

0 

0 

132 

65 

15

3 

0 

0 

15 

0

0 

0 

0 

0 

0 

0

3,848

Suspended sediment

Mean 

concentration 

(percent)

5.45 

3.48 

5.44 

7.96 

7.50

3.80 

17.1 

19.5 

17.1 

18.0

10.8 

6.32 

5.76 

4.89

7.30 

9.50 

7.60

2/6.1 

2/7.0

..

Tons 

per 

day

1/15,400 

1/4,680 

1/30, 700 

1/66,000 

42, 700

2,670 

1/140,000 

1/173,000 

[/434, 000 

j/604,000

/123.000 

7,510 

2,020 

396 

0 

0 

0 

1/64, 400 

16, 700 

3,080

494 

0 

0 

2,840 

0 

0 

0 

0 

0 

0 

0

1,734,000

September

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

2 

355

203 

18 

8 

284 

206 

57 

14 

5 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

615

1,767

Suspended sediment

Mean 

concentration 

(percent)

2/1.6 

8.66.

7.80 

5.84 

2/4.4 

8.27 

9.10 

5.62 

4.50 

2/3.5

8. 82

..

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

1/500 

1/134,000

42,800 

2,840 

950 

1/166,000 

1/57, 200 

8,650 

1,700 

472 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

1/256, 000

671. 100

 . . 5,944,000

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE BASIN--Continued 

RIO PUERCO AT RIO PUERCO, N. HEX.--Conti

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechani

Date Time

7:00 a. m. 

11:00 a. m. 

11:00 a.m. 

2:30 p.m. 

3:50 p.m. 

3:25 p. m.

1:00 p.m. 

3:00 p. m. 

10:30 a. m. 

11:30 a.m. 

10:30 a. m. 

8:00 a. m. 

5:30 a. m. 

9:25 p.m.

12:00 M. 

6:30 a. m. 

3:15 p.m. 

4:55 p. m. 

8:10 a. m.

Mean 

discharge 

(secondfeet)

12 

828 

8 

192 

6 

7

39 

25 

439 

48 

5 

69 

50 

1,020

219 

1,180 

132 

284 

615

Suspended 

Mean daily 

concentration 

(percent)

3.10 

14.3 

.26 

9.06 

2.06 

6.21

8.04 

7.20 

5.00 

5.47 

6.78 

9.38 

14.4 

17.6

17.1 

18.0 

7.30 

8.27 

8.82

Weight of 

material 

in tube 

(grams)

0.2431 

.6858 

.5495 

.8940 

.3061 

.3006

.7058 

1. 5354 

.5132 

.2824 

1.0504 

1.2345 

1.2355 

1.0161

1.0649 

1.8558 

.7099 

1. 4053 

1. 2103

Percent f

0.002

19 

31

43 

0 

0

43 

18 

33 

48 

69 

17 

49 

26

26

7 

14 

21 

7

0.004

25 

40

53 

11 

11

58 

24 

42 

62 

86 

53 

65 

30

34 

21 

20 

26 

29

0.008

55 

53 

40 

64 

31 

29

73 

30 

52 

75 

93 

69 

78 

42

40 

26 

26 

32 

35

0.016

95 

60 

98 

74 

85 

81

86 

35 

59 

87 

97 

84 

84 

49

47 

32 

34 

37 

46
RIO GRANDE BASIN 333

RIO GRANDE BASIN--Continued 

RIO PUERCO NEAR BERNARDO, N. MEX.

LOCATION. At gaging station at bridge on U. S. Highway 85, 1.2 miles southwest of

Bernardo, Socorro County,3 miles upstream from mouth, and 16 miles south of Belen. 

RECORDS AVAILABLE. Sediment records: October 1947 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 958,000 tons per day July 24; minimum, 0 tons

per day on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum, 958,000 tons per day July 24, 1949; minimum,

0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

2

3

is

9A

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

62 

23 

16 

13

7

3

1 

0 

0 

0

0 

0 

0 

0

1 

1

0 

0 

0 

0

0 

0 

0 

5 

2 

2 

1 

0 

0 

0 

0

137

Suspended sediment

Mean 

concentration 

(percent)

6.60 

3.09 

2.53 

2.47 

2.00

1.30 

.70

2/2.1 

2/1.2

2/5.7 

6.54 

8.40 

2/4.0

-

Tons 

per 

day

1/12,300 

1,920 

1,090 

867 

378

105 

19 

0 

0 

0

0 

0 

0 

0 

1/198

32

0 

0 

0 

0

0 

0 

0 

1/1,040 

353 

454 

108 

0 

0 

0 

0

18, 860

November

Mean

charge 

(secondfeet)

413 

402 

60 

18 

8

3 

1

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

905

Suspended sediment

Mean 

concentration 

(percent)

2/6.5 

14.0 

8.62 

7.22 

7.36

6.70 

6.55

Tons 

per 

day

1/207, 000 

1/164, 000 

1/16, 400 

3,510 

1,590

543 

1/204 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

393,200

December

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

0

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

RIO PUERCO NEAR BERNARDO, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

O

14

22

24

25

97

no

29

Total -

O

g

13

10

21

22 

23 ......

24 

25 -- 

26 

27 

28 

29 

30 ------ 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

0

April

0 - 0

February

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

98 

205

173 

127 

85

688

Suspended sediment

Mean 

concentration 

(percent)

7.12 

12.0 

12.2 

9.85 

8.30

--

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1/32,300 

66, 400 

57, 000 

33, 800 

19, 000

208, 500

May

0 

0 

9 

23 

12 

15 

17 

10 

10 

7

338 

962 

540 

176 

57

24 

11 

8 

8 

4 

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2,232

2/5.2 

2/15.7 

2/10.9 

11.2 

9.90 

9.57 

10.2 

8.73

10.2 

7.64 

7.95 

5.24 

5.07

4.70 

4.74 

6.52 

8.68 

9.36 

8.32

0 

0 

1/3,740 

1/10,600 

1/4, 130 

1/6,250 

4,540 

2,580 

2,750 

1,650

1/144,000 

1/220,000 

1/118,000 

24,900 

7,800

3,050 

1,410 

1,410 

1,870 

1,010 

225 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

559, 900

March

Mean

charge 

(secondfeet)

42 

34 

23 

14 

12 

8 

4 

4 

29 

18

28 

17 

8 

3 

2

1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

247

Suspended sediment

Mean 

concentration 

(percent)

6.86 

6.36 

6.06 

5.12 

4.30 

3.87 

3.79 

3.20 

5.75 

7.52

7.72 

8.64 

7.33 

6.60 

7.11 

5.59

Tons 

per 

day

7,780 

5,840 

3,760 

1,940 

1,390 

836 

409 

346 

4,500 

3,650

5,840 

3,970 

1,580 

535 

384

151 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

42,910

June

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

4 

9 

3 

0 

0

0 

0 

0 

2 

0 

0 

0 

0 

12 

1 

0 

0 

0 

0 

0

31

2/3.9 

8.43 

4.36

2/5.1

8.39 

2.20

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

1/1,420 

1/2, 690 

1/640 

0 

0 

0 

0 

0 

1/1,420 

0 

0 

0 

0 

1/5, 530 

59 

0 

0 

0 

0 

0

11,760

i/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE BASIN

RIO GRANDE BASIN Continued

RIO PDERCO NEAR BERNARDO, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

2

Q

ift

22

24

97

29

31 

TotalJuly

Mean 

discharge 

(secondfeet)

0 

0 

0 

27 

24

5 

1 

13 

61 

24

51 

606 

382 

502 

123 

47 

51 

10 

3 

1

10 

125 

110 

1,540 

342 

396 

217 

57 

23 

11 

5

4,767

Suspended sediment

Mean 

concentration 

(percent)

6.80 

14.9

11.6 

11.8 

6.24 

8.62 

7.97

8.62 

14.6 

15.5 

15.7 

11.8

9.95 

14.1 

12.8 

9.30 

1.60

2/7.4 

21.5 

19.4 

20.8 

13.4 

13.0 

12.8 

10.0 

8.97 

8.27 

5.90

Tons 

per 

day

0 

0 

0 

1/14, 200 

1/10, 900

1,570 

319 

1/2,330 

1/13, 700 

1/5, 050

1/76, 000 

1/258, 000 

1/164, 000 

1/215,000 

41,600

1/13,900 

19,400 

3,460 

753 

43

1/5,290 

1/79, 500 

57,600 

1/958,000 

1/127,000 

1/149,000 

1/78,900 

15,400 

5,570 

2,460 

796

2,320,000

August

Mean 

discharge 

(secondfeet)

43 

54 

37 

168 

275 

108 

146 

140 

367 

818

668 

150 

46 

14 

3 

0 

0 

0 

110 

23

4 

0 

0 

23 

1 

0 

0 

0 

0 

0 

0

3.198

Suspended sediment

Mean 

concentration 

(percent)

5.16 

7.40 

5.76 

9.63 

12.6

7.54 

8.89 

16.2 

20.7 

21.4

14.2 

9.20 

8.01 

6.89 

6.15

11.7 

9.85

8.66

5.24 

1.05

Tons 

per 

day

1/10, 400 

10, 800 

5,750 

1/48, 700 

96, 500

22, 000 

1/62, 500 

61,200 

1/226, 000 

1/485, 000

1/273, 000 

1/37, 500 

9,950 

2,600 

498

0 

0 

0 

1/46, 400 

6, 120

935 

0 

0 

1/4, 690 

28 

0 

0 

0 

0 

0 

0

1,411,000

September

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

122

403 

63 

27 

17 

262

84 

39 

12 

5 

2

0 

0 

0 

0 

0 

0 

0 

0 

509 

474

2,019

Suspended sediment

Mean 

concentration 

(percent)

4.16

14.2 

7.52 

6.06 

5.99 

14.0 

10.1 

6.90 

2/5.68 

4.91 

2/4.35

2/3.6 

5.84

-

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

1/31,300

1/215,000 

12, 800 

4,420 

2,750 

1/H8, 000

22, 900 

7,270 

1,840 

663 

235

0 

0 

0 

0 

0 

0 

0 

0 

1/227,000 

1/140,000

784, 200

Total discharge for year (second-foot-days) 14, 224 

Total load for year (tons) - 5, 750, 000

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
RIO GRANDE HASIN--Continued 

RIO PUERCO NEAR BERNARDO, N. HEX. Conti

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechanic

Date

Mar 1 1949

Mav 6

Julv 24

Time

7:00 a.m. 

6:00 p. m. 

11:00 p. m. 

4:30 p.m. 

4:45 p. m. 

4:30 p. m. 

6:00 p.m. 

1:00 p.m.

11:00 a.m. 

4:00 p. m. 

12:45 p.m. 

2:00 p. m. 

8:05 a. m. 

7:00 p. m.

10:00 a. m. 

5:00 a. m. 

8:00 a. m. 

7:00 p. m. 

6:00 a. m.

Mean 

discharge 

(secondfeet)

62 

402 

402 

42 

18 

15 

962 

4

24 

606 

51 

125 

1,540 

1,540

43 

818 

23 

122 

262

Suspended s

Mean daily 

concentration 

(percent)

6.60 

14.0 

14.0 

6.86 

7.52 

11.2 

7.64 

9.36

7.97 

14.6 

14.1 

21.5 

20.8 

20.8

5.16 

21.4 

9.85 

4.16 

14.0

Weight of 

material 

in tube 

(grams)

0. 5558 

.9335 

1.3578 

.7862 

.3070 

.4542 

.7695 

.9931

.9921 

2.2300 

1.3007 

1.3535 

.6614 

.8762

.3821 

.8073 

1. 2899 

.4690 

.5337

Percent fi

0.002

0 

0 

4 

71 

54 

68 

24 

39

41 

4 

4 

9 

24 

27

22 

7 

23 

6 

9

0.004

4 

3 

12 

84 

70 

83 

32 

75

70 

39 

32 

43 

30 

36

59 

27 

56 

25 

20

0.008

12 

7 

38 

95 

86 

92 

44 

90

86 

49 

66 

54 

40 

45

78 

33 

68 

4C 

27

0.016

70 

64 

92 

98 

95 

97 

55 

97

96 

60 

88 

66 

49 

55

91 

42 

85 

55 

37
RIO GRANDE BASIN 337

RIO GRANDE BASIN Continued 

CHICO ARROYO NEAR GUADALUPE, N. HEX.

LOCATION. At gaging station a quarter of a mile upstream from mouth, 5 miles northwest of

Guadalupe, Sandoval County, and 8.1 miles by road west of Cabezon. 

DRAINAGE AREA. 1,390 square miles.

RECORDS AVAILABLE. Sediment recordsr July 1948 to September 1949. 

EXTREMES, 1948-49.--Sediment loads: Maximum, 421,000 tons per day July 23; minimum, 0 tons

on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum, 421,000 tons per day July 23, 1949; minimum,

0 tons on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in WaterSupply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

1 

2 

3 

4 

5 

6 

f_ __ .___

------

9 

10 

11 

12------

13_ ___

14 

15 

16 

17 

|Q10------

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

1 

1 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

170 

78 

6 

0 

0 

0 

0 

0 

0 

0 

7 

403

666

Suspended sediment

Mean 

concentration 

(percent)

0.60 

1.40

6.32

4.76 

3.10

6.63 

6.10

Tons 

per 

day

1/109 

36 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

1/57, 800

1/11,100 

502 

0 

0 

0

0 

0 

0 

0 

1,250 

1/82, 600

153,400

November

Mean

discharge 

(second - 

feet)

132 

6 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

1 

0 

1 

1

141

Suspended sediment

Mean 

concentration 

(percent)

6.30 

2.60

2/-40

2/-40 

2/-40

-

Tons 

per 

day

1/25, 700 

421 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

11 

0

1111

26, 150

December

Mean

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

--

Tons 

per 

day

0

I/Sediment discharge computed by subdividing day. 

2/Estimated or interpolated.
338 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

CHICO ARROYO NEAR GUADALUPE, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

o

13

1 ft

10

9ft

22

94

25

TotalQ

1 ft

19

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

--

Tons 

per 

day

0

April

0 

1 

3 

12 

5

2 

0 

0 

0 

0 

1 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

24

0

0 

0 

0 

0

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

3/1,490

February

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

1

28 

54 

51 

66 

75 

42 

21 

15

353

Suspended sediment

Mean 

concentration 

(percent)

0.11

2/3.3 

4.85 

6.06 

6.40 

5.50 

3.80 

2.55 

2/2.0

Tons 

per 

day

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

1/49

1/4, 110 

1/8,000 

1/9, 970 

1/12,400 

11,100 

4,310 

1,450 

810

52,200

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

1 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

1 -

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2/20

March

Mean

charge 

(secondfeet)

20 

15 

10 

15 

29 

55 

35 

26 

23 

3

4 

6 

7 

4 

2 

2 

1 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

257

Suspended sediment

Mean 

concentration 

(percent)

1.65 

1.60 

.75 

2/. 90 

4.20 

4.20 

2/4.0 

3.70 

4.83 

2.85

2.45 

1.87 

1.47 

1.27 

1.20 

1.06 

2/.90

Tons 

per 

day

891 

648 

202 

364 

4,620 

6,240 

3,780 

2,600 

3,000 

231 

265 

303 

278 

137 

65 

57 

24 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

23, 700

June

0 

0 

0 

0 

0 

1 

0 

0 

0 

0 

7 

0 

0 

0 

0

0 

0 

1 

121 

30 

3 

1 

0 

5 

0 

0 

0 

0 

0 

0

169

8.43

0 

0 

0 

0 

0

0 

0 

0 

0

0 

0 

0 

0

0 

0

2/38, 500

0

0 

0 

0 

0 

0 

0

3/39, 720

I/Sediment discharge computed by subdividing day.

2/Estimated or interpolated.

3/Includes estimated loads for missing days
RIO GRANDE BASIN 339

RIO GRANDE BASIN Continued

CHICO ARROYO NEAR GUADALUPE, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Contlnued

Day

2

O

13 

20

21

23

24

27

28

29

30

01

TotalJuly

Mean 

discharge 

(secondfeet)

52 

5 

1 

0 

0 

52 

35 

2 

0 

331

144 

174 

99 

5 

1

0 

0 

0 

0 

218 

69 

169 

1,400 

195 

254

35 

7 

1 

0 

0 

0

3,249

Suspended sediment

Mean 

concentration 

(percent)

2/0.50 

2/2.6 

2/1.0

2/2.1 

3.96 

2/1.25

7.28

7.16 

6.98 

4.14 

3.28 

2/1.5

7.43 

4.85 

4.94 

11.3 

6.69 

8.75 

5.05 

4.00 

3.35

--

Tons 

per 

day

1/9, 280 

1/393 

27 

0 

0

1/11,100 

3,740 

68 

0 

1/83,300 

1/29, 000 

1/38, 300 

1/14, 200 

443 

40

0 

0 

0 

0 

1/65,800 

1/10,200 

i/36, 600 

1/421,000 

35,200 

1/70, 600 

4,770 

756 

90 

0 

0 

0

834, 900

Total discharge for year (second-foot-days 

Total load for year (tons) 

August

Mean 

discharge 

(secondfeet)

0 

6 

25 

55 

1

30 

125 

440 

803 

417

9 

1 

0 

0 

0

0 

281 

17 

9 

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2,220

Suspended sediment

Mean 

concentration 

(percent)

3.15 

5.34 

4.62 

2/2.93 

3.85 

4.29 

7.75 

9.14 

5.60 

2.44 

2/.80

4.56 

2.54 

.98 

1/.35

Tons 

per 

day

0

1/1,000 

1/4, 160 

6,860 

79

1/4, 140 

1/33,900 

1/104,000 

1/235,000 

1/82, 100

593 

22 

0 

0 

0

0 

1/60, 300 

1,170 

238 

9 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

533, 600

September

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

413 

197 

29 

5 

274 

210 

9

5 

3 

1 

1 

0 

0 

1 

1 

11 

4

0 

0 

0 

76 

60

1,300

Suspended sediment

Mean 

concentration 

(percent)

2.73 

5.59

2.40 

2.36 

4.07 

5.86 

2.87 

2/2.35 

2/1.7 

2/1.0 

2/1.0

2/1.0 

2/1.0 

3.72 

2/3.88

1.24 

4.87

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

1/104,000 

29,700

1,880 

319 

1/66, 100 

T/37, 100 

697

317 

138 

27 

27 

0 

0 

27 

27 

1/1, 640 

419

0 

0 

0 

1/12, 300 

7,890

262, 600

 1,928,000

jL/Sediment discharge compu*'1 by subdividing day 

2/Estimated or interpolated.
RIO GRANDE BASIN Continued 

CHICO ARROYO NEAR GUADALUPE, N. MEX. Conti

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechani

Date

Qant Q

Qonf- 1 A

Sept. 29 

Time

7:30 p. m. 

4:00 a. m. 

7:00 a. m. 

6:15 a.m. 

8:00 a.m. 

12:05 a. m. 

8:30 a. m.

6:30 a.m. 

4:00 p.m. 

10:30 a. m. 

10:45 a. m. 

4:15 a.m. 

2:00 a. m. 

1:30 a. m.

3:30 a.m. 

11:45 p.m. 

4:00 p.m. 

3:30 p. m.

6:00 p. m. 

9:15 p. m. 

8:15 a.m. 

7:30 a. m. 

8:15 p.m. 

12: 15a.m. 

7:50 a. m. 

7:05 p. m.

Mean 

discharge 

(secondfeet)

1 

1 

170 

78 

6 

7 

403

132 

20 

3 

2 

331 

174 

1,400

440 

440 

803 

281

413 

413 

197 

29 

274 

210 

11 

76

Suspended 

Mean daily 

concentration 

(percent)

0.60 

1.40 

6.32 

4.76 

3.10 

6.63 

6.10

6.30 

1.65 

2.85 

1.06 

7.28 

6.98 

11.3

7.75 

7.75 

9.14 

4.56

2.73 

2.73 

5.59 

2.40 

4.07 

5.86 

3.72 

1.24

Weight of 

material 

in tube 

(grams)

0.4146 

.3535 

1. 2582 

.4367 

.4852 

.3371 

.5556

1.2319 

.7876 

.2898 

.4228 

.4206 

.4500 

.8082

1. 8068 

1.7313 

.5225 

.8359

.3265 

.5452 

.5342 

.2746 

.2111 

.5678 

.3251 

.7986

Percent f

0.002

22 

42 

38 

0 

0 

10 

2

1 

56 

0 

78 

16 

24 

30

16 

8 

27 

18

15 

19 

29 

45 

11 

19 

53 

11

0.004

38 

63 

48 

7 

11 

26 

6

3 

66 

1 

92 

25 

33 

37

27 

29 

52 

24

22 

29 

51 

68 

16 

27 

82 

19

0.008

52 

79 

58 

21 

25 

94 

19

5 

76 

30 

94 

32 

43 

54

36 

38 

65 

34

30 

37 

64 

81 

24 

35 

94 

24

0.016

67 

88 

66 

70 

84

57

60 

81 

83 

95 

44 

54 

66

46 

48 

78 

42

41 

49 

74 

89 

34 

44

32
RIO GRANDE BASIN 341

RIO GRANDE BASIN--Continued 

SAN JOSE RIVER AT CORREO, N. HEX.

LOCATION. At gaging station 0.6 mile upstream from U. S. Highway 66, 0.7 mile northeast of

Correo, Valencia County, and 13 miles upstream from mouth. 

DRAINAGE AREA. 2,610 square miles.

RECORDS AVAILABLE. Sediment records: July 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 63,500 tons per day May 12; minimum, 0 tons

per day on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum, 79,400 tons per day Sept. 26, 1948; minimum,

0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to September 1949

Day

1 

2------

3 ......

4 __._ 

5 

7 - 

------

9 

10 

11 

12 

13------

14 ......

15 

16 ......

17 

1 1O------ D

19 

20 ...... 

21 

22 

23 

24 ...... 

25 

26 

27 ----- 

28 ...... 

29 

30 

31 

TotalOctober

Mean

discharge 

(secondfeet)

33 

14 

2.1 

.2 

0

0 

0 

0 

0 

0

0 

0 

0 

1.1 

.3

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

61

111.7

Suspended sediment

Mean

concentration 

(percent)

3.05 

1/1.4 

.28 

.06

!/. 50 

I/. 10

1.44

Tons

per 

day

2,720 

530 

16 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

15 

1

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

2/6, 100

9,380

November

Mean 

discharge 

(secondfeet)

30 

2.7 

.6 

0 

.1

.1 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

33.5

Suspended sediment

Mean 

concentration 

(percent)

1.83 

.41 

.09

I/. 10 

I/. 10

--

Tons 

per

day

1,480 

30 

1 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

1,510

December

Mean

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.8 

0 

.4 

.4 

.2 

.3 

.4 

0 

0 

0 

0 

0 

.4 

0

0 

2.0 

0 

0 

0 

0

4.9

Suspended sediment

Mean 

concentration 

(percent).

0.03 

.05

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0 

0

3/20

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

3/Includes estimated loads for missing days.
342 WESTERN GOLF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

SAN JOSE RIVER AT CORREO, N. HEX.--Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

2

19

13

1 fi

22

23

24

27

29

30

Total -

0

g

1 9

1 fi

19

20 

21 - 

22-- 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

.7 

3.7 

4.7 

2.5

.7 

.6 

0 

.6 

0

0 

8.7 

20 

22 

6.9

5.5 

.5 

.4 

0 

0 

0

77.5

Suspended sediment

Mean 

concentration 

(percent)

0.17

.27 

.07

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

17

0

0 

0

50 

1

0 

0 

0

2/1,150

AprU

0 -- 0

February

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0

.1 

0 

0 

.2 

0 

0 

1.1 

.3 

.5 

0

0 

0 

3.0 

4.7 

7.6 

6.2 

6.9 

31 

38 

28

13 

6.2 

7.6

154.4

Suspended sediment

Mean 

concentration 

(percent)

1/0.01 

I/. 02

I/. 09 

!/. 04 

I/. 07

I/. 13 

I/. 21 

y. 36 

I/. 29 

I/. 33 

1.50 

2.15 

1.15

.77 

.42 

.22

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

3 

0 

1 

0

0 

0 

11 

27 

74 

49 

61 

1,260 

2,210 

869

270 

70 

45

4.950

May

0 

0 

0 

0 

0 

0 

0 

0 

0 . 

0

20 

508 

327 

101 

57

15 

2.4 

.6 

.1 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

1,031.1

1.93 

4.45 

2.17 

1.04 

.79 

.82 

.53 

.14 

I/. 03

--

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2/1,330 

2/63, 500 

2/51,100 

2,840 

1,220

332 

34 

2 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

90, 360

March

Mean

charge 

(secondfeet)

13 

9.8 

8.4 

6.9 

6.2

5.5 

6.2 

6.9 

2.4 

.6

.4 

2.1 

.2 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

68.6

Suspended sediment

Mean 

concentration 

(percent)

0.45 

,52 

.26 

I/. 21 

.21 

.20 

.12 

.11 

. 10 

.09

I/. 10 

.80 

I/. 03

.-

Tons 

per 

day

158 

137 

59 

39 

35

30 

20 

20 

6 

1

1 

45 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

551

June

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

.7 

8.4 

.4 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

9.5

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2/60

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

3/Includes estimated loads for missing days.
RIO GRANDE BASIN 343

RIO GRANDE BASIN Continued 

SAN JOSE RIVER AT CORREO, N. HEX. Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

g

g

12

iq

99

oq

9d

29

on

31 

TotalJuly

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

72 

3.4 

0 

0 

44 

46 

33 

3.0 

.6

0 

0 

0 

0 

0 

0 

5.6 

126 

78 

109

53 

9.1 

.6 

0 

0 

.6

583.9

Suspended sediment

Mean 

concentration 

(percent)

1.20 

.68

1.12 

2.89 

1.88 

.25 

i/.07

1.04 

1.65 

1/1.48 

1.62

1/2.01 

I/. 74 

.13

I'. 35

Tons 

per 

day

0 

0 

0 

0 

0

0 

2/3, 550 

62 

0 

0 

2/1, 600 

3,590 

1,680 

20 

1

0 

0 

0 

0 

0 

0 

2/235 

2/7, 740 

2/3, 410 

2/7,090

2/2, 950 

182 

2 

0 

0 

2/45

32, 160

August

Mean

charge 

(secondfeet)

85 

20 

315 

208 

77

31 

1.8 

143 

44 

173 

54 

24 

2.1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

4.2

3.8 

0 

0 

0 

0 

0

1, 185. 9

Suspended sediment

Mean 

concentration 

(percent)

3.16 

2.72 

4.14 

4.45 

1.49

.33

I/. 13 

1/.64 

.95 

1.44

.49 

.17 

.04

2.79 

4.76

Tons 

per 

day

7,250 

2/1, 620 

2/50, 700 

2/29, 100 

2/4, 420

276 

6 

2/7, 260 

2/1, 970 

2/9, 100

714 

110 

2 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

2/584

2/592 

0 

0 

0 

0 

0

113, 700

September

Mean

charge 

(secondfeet)

0 

0 

0 

0 

0 

5.4 

0 

0 

.3 

152 

24 

1.1 

.1 

.1 

55

28 

3.4 

.2 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

24

293.6

Suspended sediment

Mean 

concentration 

(percent)

1/2.5

.14 

1.68

.84 

.18 

.04 

.04 

1.47

.96 

.17

I/. 08

1/1.3

Tons 

per 

day

0 

0 

0 

0 

0

2/580 

0 

0 

2/4 

2/13, 400 

2/664 

5 

0 

0 

2/3, 240 

726 

16 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0

2/1, 650

20, 290

Total discharge for year (second-foot-days) 3, 554.6 

Total load for year (tons) - 274,100

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

256683 O - 53 - 23-
RIO GRANDE BASIN--Continued 

SAN JOSE RIVER AT CORREO, N. HEX. Continu

Particle-size analyses of suspended sediment, water year October 194

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

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

Date

Sprrf 15 

Time

10:00 a.m. 

12:15 p.m. 

3:20 p.m. 

2:55 p.m. 

5:03 p. m.

11:30 a.m. 

3:05 p.m. 

2:50 p.m. 

12:16 p.m. 

3:30 p.m.

Mean 

discharge 

(secondfeet)

33 

6.9 

38 

5.5 

508

72 

126 

208 

173 

152 

KK

Suspended sedi

Mean daily 

concentration 

(percent)

3.05 

.27 

2.15 

.20 

4.45

1.20 

1.65 

4.45 

1.44 

1.68 

i 47

Weight of 

material 

in tube 

(grams)

0.9096 

.4192 

2. 4788 

.4323 

1.0152

.4371 

.5443 

.6537 

.6283 

.5288 

7442

Percent finer 

0.002

0 

68 

50 

0 

38

37 

50 

14 

13 

34 

RR

0.004

2 

82 

62 

5 

46

59 

58 

29 

46 

54 

851

0.008

95 

93 

12 

52

73 

66 

37 

55 

70 

on

0.016

92 

99 

94 

78 

56

82 

76 

47 

63 

77

0
RIO GRANDE BASIN 345

RIO GRANDE BASIN Continued 

RIO SALADO NEAR SAN ACACIA, N. MEX.

LOCATION. At gaging station 1 mile upstream from mouth, 2 miles northeast of San Acacia,

Socorro County, 1.7 miles downstream from bridge on D. S. Highway 85, and 15 miles

north of Socorro.

RECORDS AVAILABLE. Sediment records: July 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 280,000 tons per day July 23; minimum, 0

tons per day on many days. 

EXTREMES, 1947-49. Sediment loads: Maximum, 280,000 tons per day July 23, 1949;

minimum, 0 tons per day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1148.

Suspended sediment, water year October 1948 to Se

Day

3

7

9 ......

10 -----

12

|Q

21 ... 

22 ------ 

23 - 

24 ------ 

25 ------

26 

27 ----- - 

28 ----- 

29 ------ 

30 

31 - . 

TotalOctober

Mean

discharge 

(secondfeet)

3 

2 

2 

1 

0

0 

0 

0 

0

0

0 

0 

0 

114 

76

5 

1 

0 

0

17

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

8

230

Suspended sediment

Mean 

concentration 

(percent)

7.40 

7.60 

6.75 

1/3.4

2.41 

9.28

1/4.0 

I/. 80

4.35 

1/2.4

1.60

Tons 

per 

day

599 

410 

364 

92 

0

0 

0 

0 

0 

0

0 

0 

0 

2/39,800 

3/20, 100

540 

22 

0 

0 

2/5, 110

65 

0 

0 

0 

0

0 

0 

0 

0

0 

2/814

67, 920

November

Mean

charge 

(secondfeet)

2 

0 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

2

Suspended sediment

Mean 

concentration 

(percent)

2.30

Tons 

per 

day

124

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

124

tember 1949

December

Mean

charge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

0

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
346

WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

RIO SALADO NEAR SAN ACACIA, N. HEX. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

g

12

1 A

221)1

97

no

29

30

TotaL2

Q

18

19

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

0

April

0 0

February

Mean 

discharge 

( second - 

feet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

.0

May

0 

0 

0 

0 

0

0 

0 

0 

0 

0

30 

36 

1 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

67

8.41 

8.80 

J/4.6

-

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

2/8, 520 

2/26, 800 

124 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

35,440

March

Mean

charge 

(second - 

feet)

0

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

0

June

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

10 

0

0 

0 

0 

0 

0

0 

0 

0

1 

1

12

J/7.0

1.55 

7.09

-

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0 

0 

0 

1,890 

0

0 

0 

0 

0 

0

0 

0 

0 

2/82 

191

2,160

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN 347

RIO GRANDE BASIN Continued

RIO SALADO NEAR SAN ACACIA, N. MEX. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 

q

1 o

21

22

24

OR

31 

TotalJuly

Mean 

discharge 

(secondfeet)

0 

0 

0 

0 

0

0 

2 

6 

1 

29 

104 

13 

527 

28 

2

0 

1 

0 

6 

16

34 

204 

606 

48 

0 

1 

0 

0 

0 

0 

0

1,628

Suspended sediment

Mean 

concentration 

(percent)

4.12 

14.1 

1/3.0 

3.75 

12.0 

10.3 

13.6 

7.60 

1/4.0

5.70

5.06 

6.33

6.80 

8.93 

11.2 

7.20

1.15

--

Tons 

per 

day

0 

0 

0 

0 

0

0 

2/1,110 

2,280 

81 

2/7, 710 

2/37, 200 

3,620 

2/273, 000 

2/18,200 

216

0 

154 

0 

2/1,090 

2/4,090

6,240 

2/61, 900 

27280,000 

9,330 

0

2/119 

0 

0 

0 

0 

0

706, 300

August

Mean

discharge 

(secondfeet)

0 

6 

196 

5 

2

1 

1

170 

58 

10 

0 

0 

0 

0 

0

0 

0 

41 

3 

0

0 

0 

0 

5 

17

4 

2 

1 

0 

0 

0

522

Suspended sediment

Mean 

concentration 

(percent)

10.4 

10,5 

4.40 

1/3.1

1/2.0 

1/2.0 

10.9 

7.00 

3.60

8.39 

1/3.25

4.25 

10.2

1/8.0 

1/3.0 

1/2.0

Tons 

per 

day

0 

2/2j 090 

2/69,300 

594 

167

54 

54 

2/104,000 

11,000 

972 

0 

0 

0 

0 

0

0 

0 

2/18,800 

263 

0

0 

0 

0 

2/1,840 

4,680 

864 

162 

54 

0 

0 

0

214,900

September

Mean 

discharge 

(secondfeet)

292 

4 

3 

0 

0 

11 

3 

0 

82 

126 

220 

1 

0 

0 

163

20 

0 

0 

0 

0

3 

0 

0 

0 

0

0 

0 

0 

56 

116

1,100

Suspended sediment

Mean 

concentration 

(percent)

9.35 

1/4.7 

4.40

2.78 

6.10

8.17 

8.40 

7.93 

1/3.0

8.09 

6.40

1/5.0

.58 

7.02

Tons 

per 

day

2/153,000 

508 

356 

0 

0

2/8,270 

2/1,850 

0 

2/51,800 

28,600 

2/108,000 

81 

0 

0 

2/50,600

3,460 

0 

0 

0 

0 

405 

0 

0 

0 

0

0 

0 

0 

2/15, 500 

2/48,000

470,400

Total discharge for year (second-foot-days) 

Total load for year (tons) -- 

3,561

1,497,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN Continued 

RIO SALADO NEAR SAN ACACIA, N. HEX. Conti

Particle-size analyses of suspended sediment, water year October 19

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

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

Date

May 12 1949

Qanfr O

Time

4:00 a. m. 

11:00 p.m. 

2:00 a. m. 

7:00 a. m. 

12:45 p.m. 

10:00 p. m. 

2:00 a. m.

2:00 a. m. 

11:00 p.m. 

8:00 p. m. 

9:00 p. m. 

1:00 a. m. 

8:00 a. m. 

3:00 a. m. 

6:00 a. m.

7:00 a. m. 

1:00 a. m. 

7:30 a. m. 

4:15 p.m. 

6:00 p. m.

5:30 a. m. 

2:45 p. m. 

9:00 p. m. 

5:00 p. m. 

2:00 a. m. 

11:00 a. m. 

4:30 a. m.

Mean 

discharge 

(secondfeet)

3 

3 

76 

76 

17 

8 

2

36 

2 

29 

104 

527 

16 

204 

606

196 

170 

41 

5 

17

292 

11 

82 

126 

220 

163 

116

Suspended zed

Mean daily 

concentration 

(percent)

7.40 

7.40 

9.28 

9.28 

4.35 

1.60 

2.30

8.80 

4.12 

3.75 

12.0 

13.6 

6.33 

8.98 

11.2

10.5 

10.9 

8.39 

4.25 

10.2

9.35 

2.78 

8.17 

8.40 

7.93 

8.09 

7.02

Weight of 

material 

in tube 

(grams)

0. 2260 

1. 5737 

.4554 

.2765 

.3487 

.3380 

.4628

.8150 

1.2318 

1.7741 

2. 2896 

.5903 

.6128 

.8078 

1.5948

.7079 

.1486 

.2862 

.2485 

.9111

1.3947 

.7578 

.6467 

.2085 

1.2846 

.3690 

.2831

Percent finer 

0.002

0 

45 

0 

0 

0 

0 

0

21 

29 

10 

8 

16 

59 

17 

7

21 

22 

19 

37 

22

7 

15 

8 

16 

22 

18 

9

0.004

9 

64 

4 

2 

5 

6 

2

32 

59 

27 

56 

24 

65 

29 

17

32 

32 

32 

55 

38

12 

28 

13 

23 

30 

27 

20

0.008

55 

82 

28 

39 

35 

32 

11

49 

77 

37 

70 

30 

80 

38 

22

42 

51 

48 

68 

48

16 

37 

17 

34 

36 

40 

35

0.016

87 

92 

55 

66 

67 

76 

82

60 

90 

47 

82 

38 

88 

48 

28

54 

66 

63 

83 

62

i 23 

SI 

24 

44 

44 

SI 

51

0
RIO GRANDE BASIN 349

RIO GRANDE BASIN Continued 

SOCORRO MAIN CANAL NORTH AT SAN ACACIA, N. HEX.

LOCATION. At San Acacia diversion dam, half a mile upstream from canal gaging station 

and 0.7 mile east of San Acacia, Socorro County.

RECORDS AVAILABLE.--Sediment records: October 1947 to September 1949.

EXTREMES, 1948-49. Sediment loads: Maximum, 15,600 tons per day Aug. 10 (during period of estimated flow);minimum, 0 tons per day on many days.

EXTREMES, 1947-49. Sediment loads: Maximum, 29,900 tons per day Aug. 1, 1948; minimum, 

0 tons per day on many days.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in 

Water-Supply Paper 1148.

Monthly and annual summary of suspended-sediment discharge, water year October 1948 to September 1949

Month

1948

1949

Total for year 

Water discharge 

(second-foot-days)

2,950 

6 

0

0 

783 

2,936 

3,556 

3,857 

4,175 

3,730 

4,233 

2,688

28,914

Suspended sediment 

(tons)

21, 720 

479 

0

0 

11,330 

22,660 

22,150 

45, 510 

41,100 

93,070 

174, 100 

57,830

1/489, 900

I/Total load for Rio Grande at San Acacia Diversion Dam is the sum of the load for the Rio Grande at the San 

Acacia gaging station and the load for Socorro Main Canal North, or 10,650,000 tons.
RIO GRANDE BASIN Continued 

PECOS RIVER AT PUERTO DE LUNA, N. HEX.

LOCATION. At bridge at Puerto de Luna, Guadalupe County, 17 miles upstream from gaging station whic

DRAINAGE AREA. 3,970 square miles above gaging station (contributing area).

RECORDS AVAILABLE.--Chemical analyses: July 1939 to September 1941, November 1946 to September 1949

Water temperatures: June to September 1949.

Sediment records: . January 1949 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 2,450 parts per million Mar. 1-10; minimum, 316 part

Total hardness: Maximum, 1,730 parts per million Mar. 11, 13-20; minimum, 260 parts per million J

Sediment loads-. Maximum, 450,000 tons per day Sept. 10; minimum, 13 tons per day Feb 1. 

EXTREMES, 1939-41, 1946-49. Dissolved solids: Maximum, 2,530 parts per million July 1-10, 1947; mi

Total hardness; Maximum, 1,760 parts per million Feb. 11-20, 1948; minimum, 200 parts per million 

REMARKS. Discharge records for gaging station near Puerto de Luna, N. Hex., for water year October 

1148. No appreciable inflow between sampling point and gaging station. Records of specific cond

at Albuquerque, N. Mex.

Chemical analyses, in

Date of collection

Oct. 1-8, 10, 1948- 

Oct 11 19

Jan. 1-10, 1949 

FaK 91 9ft

Mar. 11, 13-20 

Mar. 21-26, 28-31

Mav 21-31 ______ -

Mean 

discharge 

(secondfeet)

94.3 

99.1 

100 

109 

103 

112

110 

114 

114 

95.4 

102 

82.5

93.7 

106 

112 

112 

89.2 

89.7

98.5 

218 

316 

468 

506 

334

PH

7.8 

7.8 

7.8 

7.8 

7.8 

8.0

8.0 

8.0 

7.9 

7.9 

7.9 

7.9

7.7 

7.7 

7.7 

7.7 

7.8 

7.7

7.6 

7.7 

7.7 

7.8 

7.8 

7 7

Specific 

conductance 

(micromhos at 

25° C )

2,620 

2,640 

2,590 

2,590 

2,630 

2,640

2,700 

2,680 

2,680 

2,730 

2,730 

2,750

2,760 

2,750 

2,750 

2,780 

2,750 

2,630

2,610 

1,590 

1,150 

824 

858 

1 n7n

Silica 

(SiO,)

18 

17 

16 

16 

16 

17

19 

19 

18 

17 

19 

25

20 

20 

18 

19 

19 

18

18 

16 

16

14 

14 

14

Iron 

(Fe)

Calcium 

(Ca)

520 

516 

504 

506 

516 

524

538 

536 

538 

544 

542 

556

564 

550 

556 

564 

564 

532

524 

290 

205 

143 

146

102

Magnesium 

(Mg)

76 

72 

76 

75 

75 

67

70 

68 

75 

72 

73 

74

76 

74 

76 

75 

79 

72

73 

40 

28 

18 

19

24

mrts per million, water year October 1948 to Se

Sodium 

(Na)

74 

87 

70 

81 

89 

88

92 

83 

73 

92 

85 

75

65 

79 

75 

76 

61 

63

57 

41 

23 

13 

16

1R

Potassium 

(K)

Bicarbonate 

(HCO,)

160 

162 

168 

163 

168 

171

179 

171 

174 

179 

175 

163

170 

163 

159 

165 

162 

163

163 

160 

156 

159 

143 

142

Sulfate 

(S04)

1,410 

1,410 

1,350 

1,380 

1,410 

1,400

1,440 

1,420 

1,430 

1,450 

1,450 

1,470

1,470 

1,470 

1,480 

1,500 

1,490 

1,400

1,370 

733 

472 

292 

308

427

Chloride 

(Cl)

120 

120 

126 

124 

128 

124

130 

126 

126 

138 

130 

135

135 

130 

135 

130 

128 

119

121 

59 

39 

24 

27

35
June 1-4, 6-9 . 

June 5, 10 

June 11-15 

June 16-20-- 

June 21-27 - 

June 28-30, July

1-9, 11 . 

July 10, 12-16, 18 

July 17, 19-20 - 

July 21 - 

July 22-23 - 

July 24-31 ' -

Aug. 1-3, 7-10 - 

Aug. 4-6 - 

Aug. 11-20 - 

Aug. 21-30 - 

Sept. 1-2, 4-5, 7-8 

Sept. 3, 6, 10 - 

Sept. 11-12 - 

Sept. 13-20 - 

Sept. 21-28 - 

Sept. 29-30 -

Weighted average342

1,690

721

704

661

1/216

2/1,766

575

300

3,050

790

276 

713 

252 

155

3/1,282 

3,000 

1,400 

203 

4/136 

2,260

327

7.7 

7.9 

7.7

7.7

7.8

7.8

7.9

7.9

8.0 

7.9 

7.6

7.5

7.6

7.6

7.7

7.8 

7.8 

8.0 

7.9 

7.8 

8.0

1,250

769

791

1,130

1,020

2,170

638

1,330

1,740

492

1,110

1,590

1,070

1,740

2,280

1,850

583

1,130

2,170

2,380

654

1,370

231

126

138

211

187

462

111

272

346

312

184

336

466

354

99

196

436

484

117

19

21

18

19

16

37

12

15

40

5.1

17

27

31

24

36

18

14

24

35

48

146

157

205

174

170

167

183

205

167

207

155

183

158

170

167

129

171

148

151

162

181

535

254

244

463

1,160

185

602

807

84

449

729

426

825

1,190

915

170

472

1,120

1,260

192

622

42

19

22

37

35

81

13

30

62

9.0

40

60

79

10

39

92

101

12

I/Includes discharge for July 10. Discharge for July 11 included in discharge for July 10, 12-16, 18. 

2/Includes discharge for July 11 and 17. Discharge for July 10 included in discharge for June 28-30, 

3/Includes discharge for Sept. 6.

4/Includes discharge for Sept. 29.

July 1-9, 11.
352 WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued

PECOS RIVER AT PUERTO DE LUNA, N. HEX. Continued 

Temperature (° F) of water, June to September 1949

Day

4

9

13

1 A

i a

OR

no

9Q

31

March April May June

CO

72

on

01

79

79

7ft

79

July

QQ

91

92

7ft

70

August

75

nn

83

84

80

78

81

75

67

65

September

64

61

75

78

77

77

71

73

60

61

59

59

"

Suspended sediment, January to September 1949

Day

1 

2 

3 

4 ......

5 

6 - 

7 . 

8 

9 ......

10 

11 ......

12 

13 -

14 ...

15 

16 

17 ......

18 

19 

20 

21 ......

22 

23.. _ _

24 

25 

26 

27 ----- -

28 

29 

30 - 

31 

TotalJanuary

Mean 

discharge 

(secondfeet)

--

--

--

--

--

..

--

122

106

122

122

115

85 

78

80

97

97

106

103

100

85

78

80

94

94

70

44

54

1 932

Suspended sediment

Mean 

concentration 

(percent)

.-

--

--

--

..

__

--

0.04

.04

.05

.05

.05

.05 

.04

.04

.05

.04

.06

.04

.03

.04

.06

.04

.05

.05

.05

.06

.03

--

Tons 

per 

day

..

--

--

--

--

._

_

._

s

--

132

114

165

155

155

115 

84

86

131

105

172

111

81

92

126

86

127

127

94

71

44

2,380

February

Mean 

discharge 

(secondfeet)

43

62

35

91

97

109

112

115

112

106

103

115

118

122

103

103 

106

103

94

97

91

100

97

103

118

132

129

122

_

--

2,893

Suspended sediment

Mean 

concentration 

(percent)

0.01

.01

.01

.01

.01

,.02

I/. 02

I/. 02

I/. 02

.03

.01

.01

.01

.01

.01

.02 

.01

.01

.01

.01

.01

.01

.01

.02

.01

.02

.01

.01

..

--

--

Tons 

per 

day

13

17

23

24

26

59

60

62

60

86

28

31

32

33

28

56 

29

28

25

26

24

27

26

56

32

71

35

33

_

--

1,050

March

Mean 

discharge 

(secondfeet)

122

126

129

112

100

103

106

112

103

103

97

94

94

94

85

88 

91

85

82

82

82

88

100

100

106

91

88

82

82

88

80

2,995

Suspended sediment

Mean 

concentration 

(percent)

0.01

.02

.01

.01

.01

.01

.02

.01

.03

.01

.01

.02

.01

.02

.03

.02 

.01

.01

.02

.01

.01

.02

.03

.04

.03

.01

.01

.02

.01

.01

.01

Tons 

per 

day

33

68

35

30

27

28

57

30

83

28

26

51

25

51

69

48 

24

23

44

22

22

48

81

108

86

24

24

44

22

24

22

1,310

I/Estimated or interpolated.
RIO GRANDE BASIN 353

RIO GRANDE BASIN Continued

PECOS RIVER AT PUERTO DE LUNA, N. HEX. Continued 

Suspended sediment, January to September 1949 Continued

Day

Q

13

10

9n

91

229«

OE

00

29

on

31 ------

Total2

g

12

13

10

19

22

23 

24 

25 ----- -

26 

27 

28 

29 

30 

31 

Total -

April

Mean

charge 

(secondfeet)

78 

94 

106 

115 

118

122 

100 

82 

85 

85

140 

178 

174 

154 

200 

258 

246 

282 

288 

258

264 

235 

220 

215 

282

307 

300 

335 

480 

520

15,321

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.02 

.02 

.01 

.01 

.01 

.02 

.01

.22 

.20 

.11 

.25 

.25 

.26 

.25 

.22 

.26 

.16

.14 

.10 

.10 

.16 

.26 

.22 

.37 

.33 

.45 

.56

Tons 

per 

day

21 

25 

29 

62 

64

33 

27 

22 

46 

23 

832 

961 

517 

1,040 

1,350 

1,810 

1,660 

1,680 

2,020 

1,110 

998 

634 

594 

929 

1,980

1,820 

3,000 

2,980 

5,830 

7,860

39, 960

July

150 

130 

100 

90 

90 

90 

94 

416 

324 

577

2,000 

1,530 

2,800 

1,970 

2,120 

1,710 

1,200 

800 

800 

350 

300 

2,400 

3,700 

1,000 

700

1,600 

600 

300 

356 

805 

963

30, 065

0.02 

.03 

.03 

.02 

.03 

.04 

.01 

.41 

.57 

1.76 

2.37 

1.75 

1.38 

1.40 

1.75

1.60 

1.20 

1.80 

1.85 

.90

.32 

1.72 

1.55 

.65 

.55 

1.08 

.60 

.38 

.26 

.77 

.75

--

81 

105 

81 

49 

73 

97 

25 

2/27, 000 

2/5, 780 

2/51, 500

2/163,000 

72, 300 

2/111,000 

74, 500 

100, 000 

73, 900 

38, 900 

38, 900 

40, 000 

8,500

2,590 

2/1 6Q 000 

155, 000 

17, 600 

10, 400 

2/61, 700 

9,720 

3,080 

2/4, 420 

2/20, 700 

2/21, 900

1,173,000

May

Mean

charge 

(second - 

feet)

540 

480 

450 

402 

490 

510 

530 

510 

434 

335 

321 

729 

610 

530 

500

510 

540 

500 

442 

378

370 

321 

300 

282 

515 

307 

321 

335 

314 

307 

300

13,413

Suspended sediment

Mean 

concentration

(percent)

0.50 

.39 

.32 

.25 

.21

.25 

.21 

.30 

.25 

.12

.12 

.48 

.32 

.24 

33

.31 

.24 

.47 

.16 

.22

.12 

.35 

.12 

.10 

.23 

.08 

.30 

.46 

.22 

.14 

.07

Tons 

per 

day

7,290 

5,050 

3,890 

2,710 

2,780 

3,440 

3,000 

4,130 

2,930 

1,080

1,040 

2/12, 900 

5,270 

3,430 

4,460 

4,270 

3,500 

6,340 

1,910 

2,240

1,200 

3,030 

972 

761 

2/5, 500

663 

2,600 

4,160 

1,860 

1,160 

567

104,100

August

562 

264 

246 

1,210 

600

330 

240 

200 

190 

230 

394 

246 

215 

218 

205 

195 

150 

258 

182 

461

350 

200 

140 

136 

136

129 

122 

126 

126 

118 

122

8,301

0.80 

.40 

.23 

1.02 

.70 

.55 

.50 

.20 

.11 

.60

.85 

.55 

.40 

.28 

.55

.30 

.10 

.50 

.50 

.75

.51 

.15 

.07 

.05 

.04

.04 

.04 

.05 

.02 

.02 

.03

--

Total discharge for period Jan. 11 to Sept. 30 (second-foot -days)- 

Total load for neriod Jan 11 to Sent 30 fton^ -

12,100 

2,850 

1,530 

2/43, 800 

11,300

4,900 

3,240 

1,080 

564 

3,730 

9,040 

3,650 

2,320 

2,340 

3,040

1,580 

405 

3,480 

2,460 

2/24,000 

2/6, 140 

810 

265 

184 

147

139 

132 

170 

68 

64 

99

145, 600

June

Mean

charge 

(second - 

feet)

270 

246 

252 

240 

1,860

335 

711 

349 

335 

1,520

1,190 

970 

562 

480 

402

378 

363 

1,010 

1,270 

500 

800 

700 

1,500 

480 

418

380 

350 

300 

250 

200

18, 621

Suspended sediment

Mean 

concentration 

(percent)

0.06 

.07 

.06 

.13 

1/1. 80"

.50 

.24 

.50 

.60 

.81

1.83 

1.00 

.60 

.45 

.45

.22 

.15 

.51 

.55 

1.60

1.20 

2.20 

2.00 

.80 

.30

.23 

.16 

.07 

.11 

.15

Tons 

per 

day

437 

465 

408 

842 

2/139, 000

4,520 

2/7, 680 

4,710 

5,430 

2/40,300

2/63, 900 

26,200 

9,100 

5,830 

4,880 

2,240 

1,470 

2/31,100 

2/24, 300 

21,600 

25,900 

41,600 

81, 000 

10,400 

3,380

2,360 

1,510 

567 

743 

810

562, 700

September

132 

4,380 

940 

335 

210 

170 

154 

1,870 

2,840 

5,000

2,060 

740 

390 

260 

210 

178 

158 

154 

143 

132 

129 

126 

136 

132 

122 

122 

140 

118 

199 

2,260

23, 940

0.05 

2.12 

1.00 

.25 

.10 

.04 

.04 

1.30 

3.22 

2. 82 

1.50 

.60 

.21 

.10 

.07

.04 

.03 

.03 

.03 

.03

.03 

.02 

.02 

.04 

.02

.02 

.03 

.02 

.35 

1.77

~

178 

2/298, 000 

25,400 

2,260 

567 

184 

166 

2/143,000 

2/266,000 

2/450,000 

83,400 

12,000 

2,210 

702 

397

192 

128 

125 

116 

107

104 

68 

73 

142 

66

66 

113

64 

2/3, 870 

2/139,000

1,428,000

108, 481 

V458. 000

1/fistimated or interpolated.

2/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN--Continued 

PECOS RIVER AT PUERTO DE LUNA, N. HEX.--Cont

Particle-size analyses of suspended sediment, April to Septe

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

W, in distilled water; C, chemically dispersed; M, mechanical

Date

April 20 1949

Qonf O

Time

8:00 a. m. 

8:00 a.m. 

1:30 p.m. 

5:00 p.m. 

3:00 p.m. 

4:00 p. m. 

5:00 p. m. 

1:00 p.m.

6:00 p.m. 

1:00 p. m. 

3:40 p. m. 

9:00 a. m. 

7:30 a.m. 

1:15 p. m. 

1:30 a.m.

1:00 p. m. 

1:00 p.m. 

6:00 a.m. 

4:00 p. m. 

4:30 p.m. 

8:00 a.m.

Mean 

discharge 

(secondfeet)

258 

520 

729 

307 

1,520 

1,190 

500 

200

577 

1,970 

1,970 

350 

2,400 

2,400 

963

230 

461 

4,380 

2,840 

132 

2,260

Suspended sed

Mean daily 

concentration 

(percent)

0.16 

.56 

.48 

.14 

.81 

1. 83 

1.60 

.15

1.76 

1.40 

1.40 

.90 

1.72 

1.72 

.75

.60 

.75 

2.12 

3.22 

.03 

1.77

Weight of 

material 

in tube 

(grams)

0. 6080 

.4350 

5. 7756 

.4455 

.6027 

1.9044 

.6872 

.4481

2.9489 

1.2022 

.6201 

1. 1209 

1. 1498 

1.9409 

1.0905

.7516 

.5718 

1.4357 

1.1693 

.3084 

.7396

Percent fine

0.002

36 

39 

11 

23 

25 

33 

43 

37

20 

25 

16 

19 

8 

15 

9

32 

19 

11 

20 

16 

13

0.004

55 

51 

13 

26 

33 

50 

58 

52

30 

37 

25 

32 

12 

23 

14

48 

31 

20 

28 

23 

24

0.008

73 

68 

23 

31 

45 

64 

75 

72

41 

50 

34 

44 

17 

32 

20

70 

47 

30 

41 

32 

36

0.016

83 

80 

30 

36 

59 

76 

84 

84

55 

64 

42 

57 

27 

46 

27

82' 

64 

43 

52 

40 

52
RIO GRANDE BASIN Continued 

PECOS RIVER BELOW ALAMOGORDO DAM, N. HEX.

LOCATION.--At gaging station 1,200 feet downstream from Alamogordo Dam, 1$ miles downstream from Alam

De Baca County.

DRAINAGE AREA. 4,390 square miles (contributing area). 

RECORDS AVAILABLE. Chemical analyses: June 1937 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 2,480 parts per million Mar. 21-31; minimum, 653 par

Total hardness: Maximum, 1,730 parts per million Apr. 1-3, 5-6, 8, 10; minimum, 442 parts per mill

EXTREMES, 1937-49. Dissolved solids: Maximum, 2,590 parts per million Apr. 21-30, 1938; minimum, 4

Total hardness: Maximum, 1,800 parts per million Jan. 11-16, 18-20, 1948; minimum, 294 parts per m

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pa

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Oct. 1-6, 1948 

Oct 11 20

Jan. 1-10, 1949 

Apr. 1-3, 5-6, 8, 10 

Apr. 11-14, 16-20 

Mav 21-31 ......

Mean 

discharge 

(secondfeet)

84.4 

82.8 

82.0 

38.7 

1.38 

1.41

1.35 

1.28 

1.42 

1.60 

1.55 

1.47

1.30 

1.90 

1.42 

2.04 

1.70 

118

793 

860 

81.3 

104 

71.2 

03 3

Temperature 

(°F)

pH

7.6 

7.7 

7.8 

7.8 

7.8 

7.7

7.6 

7.6 

7.7 

7.7 

7.7 

7.7

7.7 

7.6 

7.7 

7.7 

7.8 

7.8

7.7 

7.7 

7.7 

7.4 

7.6 

7 B

Specific 

conductance 

(micromhos at 

25° C)

2,570 

2,650 

2,650 

2,630 

2,580 

2,570

2,580 

2,600 

2,610 

2,630 

2,620 

2,650

2,620 

2,620 

2,650 

2,640 

2,640 

2,730

2,750 

2,670 

2,250 

1,630 

1,320 

1 idn

Silica 

(SiOa )

17 

18 

16 

16 

16 

16

18 

17 

19 

16 

17 

18

16 

17 

17 

17 

20 

18

16 

15 

16 

15 

16 

 9

Iron 

(Fe)

^

Calcium 

(Ca)

476 

498 

514 

502 

494 

476

484 

486 

496 

512 

~"508 

518

502 

512 

512 

508 

512 

550

560 

542 

446 

295 

235

107

Magnesium 

(Mg)

69 

73 

71 

72 

73 

73

80 

79 

87 

77 

 80 

81

79 

80 

79 

80 

83 

81

81 

76 

66 

43 

34

9fi

Sodium 

(Na)

Potassium 

(K)

106 

100 

87 

100 

86 

102

78 

83 

73 

85 

74 

80

78 

72 

85 

84 

81 

92

78 

82 

36 

41 

25

90

Bicarbonate 

(HC03 )

133 

134 

133 

135 

133 

142

144 

146 

152 

153 

152 

155

151 

150 

149 

152 

147 

140

145 

142 

138 

123 

116 

120

Sulfate 

(S04)

1,370 

1,420 

1,420 

1,420 

1,380 

1,360

1,370 

1,370 

1,400 

1,420 

1,400 

1,430

1,410 

1,420 

1,430 

1,420 

1,440 

1,540

1,530 

1,490 

1,160 

777 

590

ARi

Chloride 

(Cl)

116 

120 

124 

124 

122 

124

114 

121 

122 

124 

124 

130

110 

114 

124 

124 

124 

132

132 

124 

100 

65 

50 

in
RIO GRANDE BASIN Continued

PECOS RIVER BELOW ALAMOGORDO DAM, N. HEX.-Continue

Chemical analyses, In parts per million, water year October 1948 to Septembe

Date of collection

June 1-10, 1949 

Weighted averageMean 

discharge 

(secondfeet)

60.2 

74.3 

98.0 

109 

80.2 

489

426 

120 

139 

887 

651 

177

160

Temperature

(°F)

PH

7.7 

7.2 

7.4 

7.2 

7.3 

7.4

7.6 

7.7 

7.6 

7.9 

7.8 

7.8

Specific 

conductance 

(micromhos at 

25" C )

957 

946 

974 

937 

946 

937

895 

883 

963 

991 

1,010 

980

1,620

Silica 

(Si02)

12 

11 

12 

12 

10 

10

10 

11 

11 

11 

12 

10

13

Iron

(Fe)

Calcium 

(Ca)

147 

144 

162 

159 

160 

162

154 

151 

160 

170 

175 

171

308

Magnesium 

(Mg)

22 

20 

20 

21 

20 

20

20 

17 

20 

24 

26 

27

44

So- podium tos- 

(Na) slum

34 

38 

27 

27 

29 

26

21 

29 

34 

21 

21 

10

45

Bicarbonate 

(HCO,)

114 

113 

107 

119 

119 

120

115 

125 

122 

119 

113 

112

126

Sulfate 

(SOJ

374 

372 

398 

389 

391 

390

367 

359 

396 

412 

438 

414

817

Chloride 

(Cl)

33 

31 

29 

28 

28 

27

25 

34 

29 

29 

28, 

26

66
RIO GRANDE BASIN Continued 

PECOS RIVER NEAR ACHE, N. MEX.

LOCATION. At bridge on 0. S. Highway 70, approximately 3 miles above gaging station which is 1 mile 

downstream from Salt Creek, 5 miles southwest of Acme, Chaves County, and 13 miles northeast of R

DRAINAGE AREA. 11,380 square miles (contributing area). 

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 19,400 parts per million Dec. 17-20; minimum, 940 pa

Total hardness: Maximum, 4,260 parts per million Dec. 17-20; minimum, 626 parts per million June 

EXTREMES, 1937-49. Dissolved solids: Maximum, 19,870 parts per million May 23-June 2, 1938; minimu

Total hardness: Maximum, 5,320 parts per million May 23-June 2, 1938; minimum, 528 parts per mill

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply P

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Oct. 14-16, 1948 TjD6C 17 20 2/

Dec. 21-22, 24-29,

31 2/

Jan.~l-2, 1949 2/ 

Jan. 11-12, 17-20 J/

Jan. 29-31, Feb. 1-6,

Feb. 15-22, 24 3/ 

Feb. 25-28, Mar. 1 

Mar. 2-4, 9_4/ 

Jyfay 1 5

Mav 17-31 ..

Mean 

discharge 

(secondfeet)

17.3 

12.9

4.5 

9.2

13.5

8.2 

4.4 

1.8 

2.2

443 

944 

75.4 

44.0

51 1

Temperature 

(°F)

PH

7.7 

7.7 

7.7

7.2

7.2 

7.5 

7.8 

7.7 

7.7

7.8

7.6 

7.4 

7.6 

7.4

7.7 

7.7 

7.4 

7.6 

7.7

7 S

Specific 

conductance 

(micromhos at 

25° C)

2,520 

3,410 

3,790

27, 300

25, 900 

18,400 

6,270 

9,150 

10, 800

5,890

5,390 

16, 300 

8,330 

15,900

4,320 

3,700 

3,150 

3,020 

2,290 

* 9in

Silica 

(S10a)

15 

14 

15

15

16 

16 

15 

16 

15

15

17 

16 

17 

15

6.8 

10 

20 

22 

21

17

Iron 

(Fe)

Calcium 

(Ca)

360 

536 

574

933

924 

824 

542 

624 

684

542

558 

775 

658 

850

588 

586 

464 

388 

376

«fi4

Magnesium 

(Mg)

80 

113 

120

470

438 

336 

142 

181 

205

138

135 

302 

188 

298

136 

114 

94 

93 

60

dium tos- 

(N > slum 

(Na) (R)

154 

192 

245

5,510

5,160 

3,360 

804 

1,350 

1,670

698

579 

2,880 

1,150 

2,730

351 

228 

181 

221 

105

K11

Bicarbonate 

(HCO,)

192 

127 

134

123

136 

143 

128 

153 

173

126

137 

141 

124 

141

89 

83 

52 

72- 

65

SJ1- 

fate 

(S04)

1,080 

1,650 

1,760

3,590

3,440 

2,870 

1,770 

2,010 

2,180

1,740

1,710 

2,680 

2,170 

2,740

1,890 

1,770 

1,420 

1,240 

1,050

Chloride 

(Cl)

195 

280 

365

8,790

8,250 

5,410 

1,230 

2,140 

2,680

1,080

930 

4,630 

1,810 

4,480

530 

365 

295 

340 

188

Jt/No flow at gaging station Oct. 1-Nov. 7.

2/No flow at gaging station Nov. 19-Jan. 15, 17-19.

3/No flow at gaging station Feb

4/No flow at gaging station Ma
RIO GRANDE HASIN--Continued

PECOS HIVER NEAR ACME, N. MEX.--Continued

Chemical analyses, in parts per million, water year October 1948 to Septemb

Date of collection

June 1 2 1949

June 21-25, 29-30 

Sept. 2-6, 8-10 

Sept. 11, 13, 15-20 - 

Sept. 21-22, 24-30 --

Weighted aver age- -

Mean 

discharge 

(secondfeet)

2.5 

789 

836 

27.6 

5.0 

3.4 

270 

322

394 

216 

102 

29.7 

92 

847 

1,488 

182

929

Temperature 

(°F)

*

PH

7.7 

7.7 

7.8 

7.6 

7.1 

7.2 

7.6 

7.6

7.6 

7.6 

7.6 

7.5 

7.7 

7.4 

7.8 

7.8

--

Specific 

conductance 

(micromhos at 

25° C )

4,970 

1,450 

2,070 

3,820 

7,970 

13, 700 

2,540 

2,110

1,290 

2,040 

1,460 

2,170 

2,940 

1,480 

2,050 

2,090

2,340

Silica 

(Si02)

17 

18 

18 

16 

19 

20 

16 

16

13 

15 

15 

14 

13 

13 

13 

23

14

Iron 

(Fe)

Calcium 

(Ca)

544 

203 

332 

470 

648 

874 

316 

300

204 

300 

206 

310 

378 

224 

318 

312

348

Magnesium 

(Mg)

133 

29 

45 

102 

177 

275 

56 

51

29 

49 

30 

62 

49 

30 

45 

59

59

So P°" 

dium *fst*la\ SlUm (Ha) (R)

477 

83 

107 

338 

1,050 

2,130 

196 

126

50 

113 

87 

123 

249 

79 

110 

102

144

Bicarbonate 

(HCO8 )

110 

159 

103 

117 

126 

144 

130 

163

139 

129 

142 

117 

145 

148 

133 

125

124

Sulfate 

(S04)

1,680 

512 

899 

1,430 

1,970 

2,560 

871 

793

507 

807 

542 

905 

940 

584 

823 

856

974

Chloride 

(Cl)

78

100 

158 

525 

1,760 

3,660 

305 

192

67 

176 

103 

18

415 

86 

175 

175

218

jj/No flow at gaging station Tune 3-4. 

6/No flow at gaging station July 8.
RIO GRANDE BASIN--Continued 

PECOS RIVER NEAR ARTESIA, N. HEX.

LOCATION.--At gaging station at bridge on Artesia-Lovington highway, 4.3 miles east of Artesia, Eddy Co

17 miles north of McMillan Dam.

DRAINAGE AREA. 15,300 square miles (contributing area). 

RECORDS AVAILABLE.--Chemical analyses.- July 1937 to September 1949. 

Water temperatures: April to September 1949 . 

Sediment records: January to September 1949.

EXTREMES, 1948-49.--Dissolved solids: Maximum, 6,460 parts per million Mar. 21-31; minimum, 672 parts 

Total hardness: Maximum, 2,630 parts per million Mar. 21-31; minimum, 326 parts per million June 6. 

Sediment loads: Maximum, 106,000 tons per day June 6; minimum, less than one half ton per day Mar. 2

EXTREMES 1937-49 --Dissolved solids: Maximum, 10,900 parts per million Aug. 11-13, 17-21, 1945; minimu

Total hardness: Maximum, 3,430 parts per million Aug. 11-13, 17-21, 1945; minimum, 326 parts per mi

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water Supply Pape

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 -

Oct 21 31

Dec 1 1 20

Mar 91-S1 - 

Mean 

discharge 

(secondfeet)

32.5 

38.2 

57.1 

69.4 

95.0 

94.8

103 

95.5 

73-. 0 

66.2 

88.7 

124

126 

94.3 

78.5 

72.1 

43.3 

14 ?.

pH

7.5 

7.5 

7.6 

7.7 

7.7 

7.5

7.4 

7.6 

7.7 

7.7 

7.8 

7.7

7.8 

7.6 

7.6 

7.5 

7.4 

7 R

Specific 

conductance 

(micromhos at 

25° C )

7,670 

7,490 

6,860 

6,760 

6,250 

6,440

6,340 

6,530 

6,970 

7,240 

6,850 

6,550

6,770 

6,740 

7,130 

7,450 

7,870 

a 79n

Silica 

(SiOa)

16 

15 

18 

20 

19 

20

22 

22 

21 

22 

21 

20

19 

19 

19 

17 

18 

17

Iron 

(Fe)

Calcium 

(Ca)

524 

496 

490 

506 

500 

494

492 

492 

516 

524 

504 

482

486 

496 

512 

518 

552 

BOfi

Magnesium 

(Mg)

244 

233 

212 

207 

191 

191

183 

184 

205 

211 

201 

184

184 

191 

205 

213 

229 

271

Sodium 

(Na)

Potassium 

(K)

1,020 

1,020 

894 

872 

771 

783

773 

825 

897 

941 

874 

829

897 

857 

924 

983 

1,090 

1.220

Bicarbonate 

(HCO,)

145 

141 

173 

192 

203 

209

212 

209 

207 

214 

222 

215

214 

154 

159 

175 

173 

173

Sulfate 

(S04)

1,980 

1,910 

1,760 

1,770 

1,690' 

1,640

1,610 

1,630 

1,790 

1,810 

1,710 

1,610

1,640 

1,740 

1,820 

1,870 

2,040 

2. 360

Chloride 

(Cl)

1,660 

1,640 

1,460 

1,420 

1,260 

1,300

1,280 

1,350 

1,450 

1,530 

1,430 

1,350

1,440 

1,380 

1,490 

1,570 

1,710 

1.900
RIO GRANGE BASIN Continued

PECOS RIVER NEAR ARTESIA, N. HEX. Continued

Chemical analyses, In parts per million, water year October 1948 to Septemb

Date of collection

Aor 21 27

May 21 31

July 3 12

July 22 26 30

July 27-29, 31,

Aug. 25-31, Sept. 1, 4 

Sept 2 3

Sept. 21-30 - -----

Weighted average 

Mean 

discharge 

(secondfeet)

1/79.6 

971 

201 

2/193 

256 

392 

61.5

31.8 

2,830 

1,111 

1,847 

317 

208 

144 

437 

138 

71.3 

778 

3/1,806

414 

601

272 

265 

i/54. 9 

889 

884 

1,628 

259

298

pH

7.6 

7.8 

7.5 

7.4 

7.8 

7.7 

7.4

7.4 

7.7 

7.6 

7.6 

7.8 

7.7 

7.4 

7.8 

7.5 

7.4 

7.4 

7.7 

7.4

7.5

7.2 

7.4 

7.4 

7.7 

7.7 

7.7 

7.6

"

Specific 

conductance 

(micromhos at 

25° C )

8,890 

3,490 

4,240 

5,370 

2,510 

3,300 

6,320

8,100 

1,100 

2,450 

2,560 

3,860 

2,790 

5,800 

1,730 

3,060 

7,270 

3,680 

2,360 

4,120

2,510

3,710 

3,080 

6,590 

1,400 

2,450 

2,790 

4,320

3,540

Silica 

(S10S)

18 

15 

19 

13 

14 

17 

18

16 

21 

16 

18 

17 

15 

18 

14 

19 

24 

17 

20 

17

15

18 

18 

20 

11 

14 

13 

17

17

Iron 

(Fe)

Calcium 

(Ca)

602 

586 

504 

520 

264 

424 

536

600 

98 

300 

408 

434 

276 

514 

188 

288 

568 

292 

278 

406

306

364 

284 

482 

144 

310 

398 

430

394

Magnesium 

(Mg)

251 

104 

120 

164 

75 

84 

192

244 

21 

61 

57 

95 

66 

161 

41 

97 

208 

86 

47 

94

62

103 

82 

173 

30 

60 

67 

120

93

So- f°- 

dium tas "

(Nal slum 

(Na) (R)

1,260 

223

377 

552 

194 

267 

744

1,060 

109 

187 

135 

365 

270 

667 

133 

277 

920 

426 

208 

434

192

345 

288 

831 

115 

178 

187 

435

333

Bicarbonate 

(HCO,)

183 

143 

129 

137 

154 

146 

134

153 

208 

138 

148 

160 

132 

142 

142 

134 

163 

133 

155 

171

166

174 

176 

140 

167 

143 

141 

160

157

Sulfate 

(S04)

2,260 

1,760 

1,540 

1,690 

714 

1,220 

1,810

2,140 

169 

820 

1,030 

1,230 

796 

1,670 

492 

920 

1,940 

914 

757 

1,130

802

1,030 

765 

1,560 

331 

848 

1,060 

1,300

1,150

Chloride 

(Cl)

1,970 

300 

610 

920 

364 

420 

1,240

1,740 

152 

310 

248 

605 

430 

1,090 

210 

460 

1,500 

670 

298 

725

326

610 

515 

1,400 

174 

285 

320 

725

536

I/Includes discharge for Apr. 9. 

2/Includes discharge for May 1.

3/Discharge for July 21 

4/ Discharge for Sept. 1
RIO GRANDE BASIN 361

RIO GRANDE BASIN Continued

PECOS RIVER NEAR ARTESIA, N. HEX. Continued

Temperature (° F) of water, April to September 1949

Day

13

91

90

97

no

29

March April May June

HO

79

75

rtK

on

fl9

g +

on

uq

gc

July

00

01

QC

ftl

go

OA

G2

79

79

on

go

August

on

17 p

79

'JQ

Q 1

CA

on

P.4

0 1

on

September

69

70

72

Suspended sediment, January to September 1949

Day

1 ......

2 ----- -

3 

4 

5 

6 

7 ---___

8 

9 ...

10 

11 ......

12 ...

13 ......

14 

15 

16 -.-.._

17 

18 -----

19 -----

20 

21 ... 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

discharge 

(secondfset)

..

_

_

_

--

_

_

_

_

74

79

32

32

32

31

79

81

87

112

122

122

122

122

117

110

108

122

122

122

140

160

2,323

Suspended sediment

Mean 

concentration 

(percent)

..

_

_

_

_

_

_

_

0.01

0

.01

.01

0

.01

0

.01

.01

.01

.01

.01

.01

.01

0

.01

0

.01

.01

.01

.01

.01

--

Tons 

per 

day

..

_

_

..

--

_

_

._

_

20

0

22

22

0

22

0

22

23

30

33

33

33

33

0

30

0

33

33

33

33

43

S03

February

Mean

discharge 

(secondfset)

150

135

132

129

113

115

115

121

129

117

114

108

103

99

92

87

87

35

35

33

85

78

30

78

74

76

77

30

--

--

2, .'32

Suspended sediment

Mean 

concentration 

(percent)

0

0

.01

.01

0

0

0

0

.01

.01

0

0

0

0

0

0

0

0

0

0

0

0

.01

0

0

0

0

0

--

--

--

Tons 

per 

day

0

0

36

35

0

0

0

0

35

32

0

0

0

0

0

0

0

0

0

0

0

0

22

0

0

0

0

0

--

"

160

March

Mean

discharge 

(secondfeet)

76

76

71

72

68

73

73

70

71

71

65

59

52

57

43

36

33

37

20

26

27

29

17

16

10

a9

5.1

10

14

12

6.7

1,310.3

Suspended sediment

Mean 

concentration 

(percent)

0

0

0

0

0

0

0

.01

0

.01

.01

.01

0

.01

0

0

0

0

0

.01

0

.01

0

0

0

.01

0

0

0

0

0

Tons 

per 

day

0

0

0

0

0

0

0

19

0

19

18

16

0

15

0

0

0

0

0

7

0

8

0

0

0

2

0

0

0

0

0

104
362 WESTERN GULF OF MEXICO BASIN

RIO GRANDE BASIN Continued 

PECOS RIVER NEAR ARTESIA, N. HEX.--Continued 

Suspended sediment, January to September 1949--Contlnued

Day

O

Q

13

1ft

19

9n

22

oo

OA

25

9ft

29

30

31 

TotalO

g

12

13

19

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

6.5 

5.4 

7.5 

36 

39 

20 

16 

12 

574 

960 

960 

1,000 

1,020 

960 

940 

880' 

900 

S20 

920 

1,220

516 

319 

224 

187 

166

140 

128 

115 

108 

105

13,404.4

Suspended sediment

Mean 

concentration 

(percent)

0.01 

0 

0 

.01 

0

0 

.01 

.01 

.29 

.32 

.26 

.27 

.26 

.21 

.24 

.23 

.23 

.21 

.21 

.34

.30 

.IB 

.08 

.03 

.02

.01 

.01 

.01 

.01 

.01

Tons 

per 

day

2 

0 

0 

10 

0 

0 

4 

3 

1/5,580 

8,290

6,740 

7,290 

7,160 

5,440 

6,090 

5,460 

5,590 

5,220 

5,220 

1/12, 100 

4,180 

1,380 

483 

151 

90

38 

35 

31 

29 

28

86, 640

July

163 

112 

103 

97 

86

72 

5? 

49 

39 

47 

56

105 

440 

345 

1,550

4,240 

2,570 

1,160 

620 

440

297 

330 

590 

342 

232

593 

366 

496 

560 

515 

1,060

17,734

0.01 

.01 

.02 

.01 

.01

.01 

.01 

.01 

.01 

.02 

.01

.02 

.20 

. 11 

.44

.83 

1.25 

.91 

.40 

.21

. 12 

.10 

.21 

.09 

.03

.40 

.20 

.15 

.21 

.19 

.41

44 

30 

56 

26 

23 

19 

16 

13 

11 

25 

15

57 

1/2, 990 

1/1, 030 

1/49, 300

1/97, 800 

1/90, 200 

1/30,400 

6,700 

2,490

962 

891 

3,340 

831 

188

1/9, 680 

1,980 

1/2, 550 

3,180 

2,640 

11,700

319,200

May

Mean

charge 

(secondfeet)

124 

135 

104 

99 

187

256 

187 

155 

128 

160 

141 

121 

106 

857 

1,140 

413 

319 

211 

153 

117

93 

78 

71 

65 

60 

54 

54 

57 

52 

48 

45

5,790

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.04

.13

.07 

.02 

.02 

.02

.02 

.01 

.01 

. 38 

.68 

.52 

.31 

.14 

.06 

.04

.01 

.02 

.01 

.01 

.01

.01 

.01 

.02 

.01 

.02 

.02

Tons 

per 

day

33 

36 

28 

27 

1/281 

899 

353 

84 

69 

86

76 

33 

29 

1/14,600 

1/21,900 

1/5,860 

2,670 

798 

248 

126

25 

42 

19 

18 

16 

15 

15 

31 

14 

26 

24

48,480

August

760 

732 

628 

500 

590

690 

590 

500 

500 

440 

342 

262 

267 

183 

158

117 

202 

590 

342 

258

219 

440 

269 

131 

76 

69 

55 

53 

54 

46 

31

10,094

Total discharge for period Jan. 10 to Sept. 30 (second 

Total load for period Jan. 10 to Sept. 30 (tons) ------

0.33 

.24 

.26 

.17 

.18 

. 18 

.23 

.14 

. 15 

.13 

.12 

:17 

. 10 

.07 

.05

.03 

.16 

.50 

.25 

.11

.11 

.34 

.17 

.04 

.02

.01 

.01 

.01 

.01 

.02 

.01

--

6,770 

4,970 

4,500 

2,300 

2,870

3,350 

3,660 

1,890 

2,020 

1,540 

1,110 

1,200 

721 

346 

213

95 

873 

7,960 

231 

766

650 

4,040 

1,230 

141 

41

19

15 

14 

15 

25 

8

53,580

June

Mean

charge 

(secondfeet)

38 

37 

32 

27 

25

2,830 

1,250 

899 

964 

1,330

2,060 

4,150 

1,920 

655 

450 

308 

234 

332 

393 

208

170 

175 

158 

136 

132

131 

131 

122 

426 

448

20, 171

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.01 

.01 

.01

.99 

.60 

.26 

.31 

.40

.79 

.77 

.54 

.45 

.25 

.13 

.10 

.11 

. 15 

.06

.04 

.03 

.02 

.02 

.01

.01 

.01 

.01 

.14 

.11

Tons 

per 

day

21 

20 

9 

7 

7 

1/106, 000 

1/23, 300 

1/6, 820 

T/9, 800 

1/15, 100 

1/59,200 

1/86,300 

1/28,000 

7,960 

3,040 

1,080 

632 

1/1,050 

1/1,610 

337

184 

142 

85 

73 

36

35 

35 

33 

1/2,250 

1/1,470

354,600

September

1,600 

1,040 

415 

500 

342 

672 

655 

690 

708 

2,240 

1,140 

3,850 

4,000 

3,520 

1,350

742 

545 

428 

366 

342

415 

297 

277 

342 

267

240 

221 

194 

168 

166

27,732

0.42 

.29 

.06 

.16 

.32

.45 

.34 

.31 

.25 

.79

.52 

.73 

.64 

.54 

.42

.27 

.20 

.15 

.08 

.08

.09 

.06 

.04 

.04 

.04 

.06 

.04 

.03 

.03 

.02

--

1/36, 500 

1/9, 620 

672 

2,160 

2,950 

8,160 

6,010 

5,780 

4,800 

1/54, 890

1/17, 600 

1/75, 900 

V69, 100 

1/53,400 

1/15, 500

5,410 

2..940 

1,730 

791 

739

1,010 

481 

299 

369 

288

389 

239 

157 

136 

90

378,000

101,395.7 

1,241,000

I/Sediment discharge computed by subdividing day.
RIO GRANDE BASIN Continued 

PECOS RIVER NEAR ARTESIA, N. HEX. Contin

Particle-size analyses of suspended sediment, April to Sept

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

W, in distilled water; C, chemically dispersed; M; mechanica

Date Time

4:10 a.m. 

4:30 a.m. 

4:45 a.m. 

5:00 a. m. 

5:10 a.m.

5:25 a. m. 

7:55 a.m. 

10:50 a. m. 

3:17 p.m. 

5:15 p.m.

11:40 p.m. 

10:10 a.m. 

4:50 p.m. 

6:05 p.m. 

8:45 a. m.

11:30 a.m. 

11:05 a.m. 

5:50 p.m. 

9:30 a. m.

5:35 p.m. 

9:00 a. m. 

11:00 a. m. 

10:20 a. m.

6:12 p.m. 

1:00 p.m. 

10:35 a. m. 

10:00 a. m.

Mean 

discharge 

(secondfeet)

574 

574 

574 

574 

574

574 

574 

574 

574 

516

2,830 

2,060 

1,550 

1,550 

2,570

440 

593 

496 

1,060

732 

440 

590 

258

1,600 

2,240 

3,520 

415

Suspended se

Mean daily 

concentration 

(percent)

0.29 

.29 

.29 

.29 

.29

.29 

.29 

.29 

.29 

.30

.99 

.79 

.44 

.44 

1.25

.21 

.40 

.15 

.41

.24 

.13 

.50 

.11

.42 

.79 

.54 

.09

Weight of 

material 

in tube 

(grams)

0. 5900 

.5413 

.6156 

.8375 

.7653

.6935

1. 6256 

.5173 

1. 0276

.9009 

.4468 

1. 0276 

.9067 

.5828

.4001 

.4054 

.6721 

.7520

.4421 

.3456 

1. 2251 

.2135

.6482 

1. 1032 

.5284 

.3187

Percent fin

0.002

21 

24 

21

23

39 

43 

44

22

10 

18 

31

26 

15 

19 

22

25 

32 

20 

32

22 

20 

20 

26

0.004

24 

29 

31

29

46 

58 

56

26 

52 

16 

27 

45

40 

25 

31 

35

40 

53 

42 

50

29 

36 

31 

35

0.008

32 

39 

38

38

64 

75 

68

42 

76 

22 

38 

70

54 

36 

47 

48

55 

68 

60 

70

48 

50 

42 

50

0.016

0

37 

47 

46

49

73 

84 

74

60 

82 

29 

53 

90

64 

50 

65 

62

71 

87 

78 

84

63 

65 

54 

59
RIO GHANDE BASIN Continued 

PECOS RIVER NEAR MALAGA, N. HEX.

LOCATION.--Two and one-half miles upstream from gaging station which is 3 miles southeast of Malaga

DRAINAGE AREA. 19,190 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 4,810 parts per million Apr. 1-10; minimum, 1,360 p

Total hardness: Maximum, 2,260 parts per million Apr. 11-20; minimum, 696 parts per million June 

EXTREMES 1937-49. Dissolved solids: Maximum, 5,290 parts per million Aug. 2-10, 1946; minimum, 3

Total hardness: Maximum, 2,290 parts per million Aug. 1-20, 1947; minimum, 254 parts per million 

REMARKS Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Albuquerque, N. Mex.

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Oct. 1-10, 1948 

Dec 1 10

Jan. 1-10, 1949 ---- -

Mav 21 -31 ___

Mean 

discharge 

(secondfeet)

66.5 

96.0 

96.3 

92.2 

91.9 

89.7

83.1 

57.3 

73.1 

116 

118 

114

118 

127 

114 

104 

90.7 

42.0

41.5 

43.2 

43.5 

109 

64.9 

R1 7

Temperature 

<°F)

pH

7.5 

7.6 

7.7 

7.8 

7.8 

7.9

7.3 

7.5 

7.6 

7.7 

7.7 

7.6

7.7 

7.7 

7.6 

7.6 

7.3 

7.4

7.5 

7.5 

7.5 

7.5 

7.6 

7 7

Specific 

conductance 

(micromhos at 

25° C)

6,080 

5,360 

5,280 

5,310 

5,310 

5,390

5,340 

5,620 

5,460 

4,940 

4,510 

4,810

4,600 

4,540 

4,560 

4,920 

5,250 

6,080

6,520 

6,150 

6,120 

5,050 

5,290

5 3R(1

Silica 

(Si02)

22 

25 

24 

23 

19 

19

22 

23 

19 

19 

19 

20

18 

15 

15 

15 

18 

20

21 

15 

16 

15 

17

1Q

Iron 

(Fe)

Calcium 

(Ca)

508 

472 

472 

474 

466 

472

488 

494 

484 

464 

434 

456

460 

454 

464 

486 

502 

532

554 

534 

542 

494 

496 

snfi

Magnesium 

(Mg)

216 

184 

174 

177 

174 

175

176 

177 

176 

164 

149 

166

158 

158 

152 

161 

185 

205

207 

226 

193 

172 

177

177

Sodium

(Na)

Potassium 

(K)

644 

578 

582 

588 

617 

628

568 

621 

588 

491 

447 

452

436 

434 

439 

497 

518 

666

770 

640 

702 

493 

549

5K3

Bicarbonate 

(HCO,)

182 

177 

193 

189 

207 

207

209 

204 

204 

207 

210 

205

193 

187 

174 

171 

165 

179

183 

178 

178 

168 

171

1R1

Sulfate 

(S04)

1,790 

1,640 

1,610 

1,640 

1,650 

1,650

1,620 

1,660 

1,630 

1,520 

1,390 

1,510

1,490 

1,490 

1,500 

1,590 

1,650 

1,800

1,910 

1,820 

1,840 

1,620 

1,650 

i Ron

Chlo

ride 

(Cl)

1,1

9

9

9

9

9

9

1,0

9

8

7

7

7

7

7

8

9

1,1

1,2

1,1

1,1

8

9

0
Sept. 13-20 

Weighted average 

408 

194 

61.5 

80.2 

68.6 

95.9

62.4 

69.9 

65.8 

139 

100 

1,825 

443

139

7.8 

7.7 

7.6 

7.4 

7.7 

7.6

7.4 

7.6 

7.6 

7.6 

7.6 

7.7 

7.8"

2,100 

2,930 

4,170 

5,140 

5,400 

4,400

5,470 

5,590 

5,710 

5,240 

5,020 

3,060 

3,810

4,240

13 

15 

17 

18 

20 

18

21 

20 

23 

21 

19 

19 

17

19

172 

282 

364 

476 

498 

442

516 

512 

530 

502 

462 

348 

420

417

65 

111 

152 

176 

178 

142

168 

184 

150 

176 

172 

97 

117

139

190 

228 

410 

532 

568 

415

563 

599 

670 

530 

526 

245 

333

411

114 

143 

156 

159 

160 

159

165 

174 

175 

170 

194 

140 

148

163

537 

818 

,220 

,620 

,680 

,410

,690 

,710 

,750 

1,630 

1,550 

1,040 

1,280

1,340

3

4

7

8

9

7

9

1,0

1,0

9

8

4

5

6
RIO GRANDE BASIN Continued 

PECOS RIVER AT RED BLUFF, N. HEX.

LOCATION.--About 1 mile upstream from Red Bluff gaging station which is just downstream from Red Bl

DRAINAGE AREA. 19,540 square miles above gaging station (contributing area).

RECORDS AVAILABLE. Chemical analyses: October 1937 to September 1949.

EXTREMES, 1948-49.--Dissolved solids: Maximum, 8,530 parts per million April 1-10; minimum, 2,090 

Total hardness: Maximum, 2,510 parts per million Oct. 1-10; minimum, 1,000 parts per million Jun

EXTREMES, 1937-49.--Dissolved solids: Maximum, 11,900 parts per million Aug. 11-20, 1947; minimum, 

Total hardness: Maximum, 2,810 parts per million Aug. 11-20, 1947; minimum, 256 parts per millio

REMARKS. Records of discharge for water year October 1948 to September 1949 given in ufater-Supply 

samples available in district office in Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Dec. 11-17, 19-20- 

Dec. 21-22, 24,

Jan. 1-10, 1949 

Jan. 11-15, 19-20 - 

Jan. 21-27, 30-31 -

Feb. 1-2, 4-10 

Apr. 11-13, 16-20-

Vfou 91.41 ----- 

Mean 

discharge 

(secondfeet)

70.4 

98.1 

95.0 

86.5 

87.0 

81.6

78.5 

72.6

78.1 

120 

128 

118

121 

133 

128 

103 

90.3 

45.7

41.9 

46.3 

44.2 

86.8 

113

H5 R

Temperature 

<°F)

PH

7.3 

7.8 

7.8 

7.8 

7.8 

7.8

7.7 

7.7

7.5 

7.5 

7.5 

7.6

7.6 

7.6 

7.6 

7.4 

7.5 

7.5

7.5 

7.5 

7.6 

7.3 

7.5 

i i

Specific 

conductance 

(micromhos at 

25" C)

11,900 

9,000 

8,410 

8,510 

8,480 

8,460

8,520 

8,440

9,010 

7,750 

6,380 

6,770

4,610 

6,310 

6,030 

7,080 

7,410 

9,280

12,800 

10,900 

11,200 

10,000 

7,490 

R ion

Silica 

(Si02)

19 

18 

17 

16 

16 

17

20 

16

18 

21 

19 

16

15 

12 

11 

12 

15 

11

13 

13 

14 

18 

12 

14

Iron 

(Fe)

Calcium 

(Ca)

538 

488 

470 

478 

496 

492

496 

478

494 

470 

436 

444

460 

448 

448 

478 

500 

524

563 

540 

563 

548 

478 

«n n

Magnesium 

(Mg)

283 

208 

198 

198 

197 

205

200 

192

208 

188 

168 

174

173 

171 

170 

179 

176 

182

251 

189 

233 

244 

204

917

So P°-

d!um fs- 

,., i slum 

(Na) (R)

1,950 

1,410 

1,290 

1,290 

1,280 

1,280

1,260 

1,260

1,360 

1,100 

841 

928

884 

827 

756 

945 

1,050 

1,490

2,150 

1,850 

1,890 

1,550 

1,020 

i isn

Bicarbonate 

(HCOS )

153 

160 

157 

158 

182 

189

195 

193

183 

196 

193 

202

192 

178 

168 

158 

153 

141

132 

141 

140 

145 

150

1RR

Sulfate 

(S04)

2,070 

1,850 

1,760 

1,760 

1,770 

1,750

1,750 

1,700

1,790 

1,650 

1,480 

1,520

1,580 

1,570 

1,550 

1,640 

1,730 

1,870

1,980 

2,000 

2,100 

1,980 

1,660 

i 7«n

Chlo

ride 

(Cl)

3,1

2,1

2,0

2,0

2,0

2,0

2,0

1,9

2,1

1,7

1,3

1,4

1,4

1,3

1,2

1,5

1,6

2,2

3,5

2,8

2,9

2,5

1,7

j./Discharge for May 6 included with discharge reported for May 7-20.
Aug. 22-27, 29-31 

Sept. 1-8, 10 37 

Weighted average -

471 

112 

71.0 

87.3 

67.5 

108

76.7 

82.9 

71.9 

187 

2,095 

522

156

7.8 

7.7 

7.7 

7.6 

7.5 

7.4

7.5 

7.7 

7.6 

7.7 

7.8 

7.8~

3,190 

5,210 

7,060 

7,930 

8,220 

7,050

8,340 

7,990 

8,970 

7,700 

3,750 

5,110

6,090

15 

14 

14 

16 

15 

16

19 

17 

19 

17 

14 

16

15

244 

304 

324 

452 

496 

428

492 

484 

534 

504 

348 

412

417

96 

136 

148 

195 

209 

165

180 

188 

215 

194 

106 

121

160

334 

701 

1,100 

1,180 

1,180 

1,000

1,250 

1,170 

1,330 

1,080 

375 

622

823

133 

146 

140 

137 

130 

134

147 

149 

152 

134 

144 

146

153

728 

1,000 

1,100 

1,620 

1,740 

1,490

1,690 

1,680 

1,880 

1,740 

1,080 

1,300

1,410

6

1,1

1,8

1,9

1,9

1,6

1,9

1,8

2,1

1,7

6

9

1,3

2/Discharge for June 6 included with discharge reported for June 7-13. 

3/Includes discharge for Sept. 11-12.
RIO GRANDE BASIN Continued 

PECOS RIVER NEAR ORLA, TEX.

LOCATION. At gaging station 6 miles southeast of Orla, Reeves County, 11 miles downstream from Salt 

Red Bluff Dam.

DRAINAGE AREA. 21,300 square miles (contributing area). 

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 7,450 parts per million Oct. 21-31; minimum, 2,390 pa

Total hardness: Maximum, 2,430 parts per million Feb. 1-10; minimum, 939 parts per million June 12

EXTREMES, 1937-49.--Dissolved solids: Maximum, 9,640 parts per million Oct. 21-31, 1947* minimum, 1,

Total hardness: Maximum, 3,240 parts per million Feb. 11, 13, 16-19, 1946; minimum, 602 parts per 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pap

samples available in district office at Austin, Tex.

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Oct. 1-10, 1948 

-Oct. 11-20 

Nov. 11-20 

Nov. 21-30 

Jan. 1-10,. 1949 

Man 21 -31 ........

Mean 

discharge 

(second, 

feet)

0.55 

14.7 

6.75 

48 

10.3 

4.76

8.88 

3.44 

13.9 

10.9 

17.9 

3.65

3.90 

12.1 

10.9

206 

352 

181 

26.0 

41.4 

70.0

PH

7.5

7.7 

7.7 

7.8 

7.7 

7.8 

7.7

7.6 

7.6 

7.6

7.8 

7.9 

7.8 

7.8 

7.8 

7 5

Specific 

conductance 

(micromhos at 

25" C )

10,600 

10,800 

11,200 

10,000 

10, 100 

10,300

10,100 

10,100 

9,970 

10,100 

9,480 

10,000

10,500 

9,620 

9,600

8,490 

8,690 

8,790 

9,540 

9,070 

o nsn

Silica. 

(SiO,)

27 

26 

12 

17 

15 

13

12 

13 

13 

14 

11 

9.9

10 

9.4 

6.5

14 

14 

12 

14 

14 

14

Iron 

(Fe)

0.00

Calcium 

(Ca)

534 

530 

547 

526 

552 

560

558 

566 

578 

574 

518 

538

580 

532 

530

490 

500 

500 

538 

520 

S5R

Magnesium 

(Mg)

214 

218 

230 

210 

213 

220

224 

227 

229 

231 

216 

224

238 

216 

218

198 

200 

204 

225 

210 

21.1

Sodium 

(Na)

Potassium 

(K)

1,700 

1,730 

1,760 24 

1,620 

1,620 

1,660

. 1,570 

1,580 

1,530 

1,580 

1,440 

1,540

1,570 

1,450 

1,440

1,250 

1,290 

1,310 

1,400 

1,350 

1 ssn

Bicarbonate 

(HCO,)

120 

118 

103 

112 

120 

123

123 

128 

138 

131 

121 

114

114 

117 

111

131 

133 

139 

95 

115 

11R

Sulfate

(so,)

1,890 

.1,910 

1,960 

1,890 

1,950 

2,000

2,000 

2,030 

2,030 

2,060 

1,870 

1,930

2,030 

1,930 

1,940

1,820 

1,840 

1,850 

2,020 

1,940 

1 oan

Chloride 

(Cl)

2,720 

2,760 

2,860 

2,580 

2,580 

2,650

2,510 

2,520 

2,470 

2,530 

2,320 

2,490

2,580 

2,320 

2,300

1,950 

2,020 

2,050 

2,220 

2,120 

2 mn
Sept. 9-10, 21-22, 25

Sept. 23-24, 26,

Weighted average -

26.4 

23.5 

26.1 

267 

379 

309 

205

195 

34.2 

127 

136

88.7 

153

11.5

88.1

7.4 

7.5 

7.6 

7.5 

7.7 

7.7 

7.7

7.3 

7.6 

7.2 

7.6

7.6 

7.6

7.5

--

9,870 

3,730 

9,680 

8,400 

7,430 

7,340 

7,570

8,350 

8,160 

8,100 

7,890

5,150 

7,670

9,350

8,220

18 

18 

18 

17 

15 

14 

16

18 

18 

19 

22

17 

17

17

15

546 

256 

538 

502 

452 

442 

442

488 

496 

492 

488

444 

490

574

485

218 

73 

215 

190 

171 

168 

171

171 

170 

182 

177

93 

145

203

184

1,510 

457 

1,480 

1,220 

1,050 

1,050 

1,100

1,250 

1,200 

1,150 

1,180

686 

1,140

1,470

1,210

81 

53 

77 

104 

106 

108 

114

104 

116 

90 

116

91 

94

104

114

2,010 

830 

1,990 

1,840 

1,650 

1,600 

1,610

1,710 

1,740 

1,690 

1,720

1,340 

1,580

1,990

1,750

2,400 

725 

2,350 

1,900 

1,640 

1,640 

1,720

1,960 

1,870 

1,870 

1,860

1,070 

1,830

2,350

1,900
RIO GRANDE BASIN--Continued 

PECOS RIVER BELOW GRANDFALLS, TEX.

LOCATION. At gaging station at bridge on State Farm to Market Road 11 between Grandfalls, Ward Count

of Grandfalls, and 10 miles downstream from Chacatori Draw. 

DRAINAGE AREA. 27,820 square miles (contributing area).

RECORDS AVAILABLE.--Chemical analyses: April 1939 to June 1942, October 1946 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 11,400 parts ner million Jan. 11-20; minimum, 8,970 

Total hardness: Maximum, 3,500 parts per million June 21-30; minimum, 2,920 parts per million May 

EXTREMES, 1939-42, 1946-49. Dissolved solids: Maximum, 12,000 parts per million Feb. 1-10, 1941; m

Total hardness: Maximum, 3,630 parts per million July 21-31, 1947; minimum, 339 parts per million 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Sunply P

samples available in district office at Austin, Tex.

Chemical analyses, in carts per million, water vear October 1948 to Sep

Date of collection

Oct. 1-10, 1948 

Dec 21 31

Jan. 1-10, 1949 

T?oV\ i in

Mar 21 31

Mao 91-31 ___ __

Mean 

discharge 

(secondfeet)

14.2 

17.-8 

18.2 

15.5 

24.6 

38.9

31.9 

29.9 

29.1 

24.5 

46.2 

38.7

31.9 

32.2 

37.8 

32.5 

22.7 

31.6

22.2 

21.1 

33.7 

23.0 

33.5 

9n R

ture 

(°F)

PH

7.8

7.9 

7.8

7 R

Specific 

conductance 

(micromhos at 

25° C)

13, 500 

13,500 

13,500 

14, 000 

15, 100 

16, 100

15, 700 

15, 500 

15, 500 

15,300 

16,400 

14,300

13, 700 

14, 500 

15, 400 

15, 200 

15,200 

15, 500

15,300 

13,800 

14,300 

13, 000 

14, 500 

14 inn

Silica 

(Si02 )

32 

29 

22 

20 

16 

14

16 

16 

17 

20 

17 

16

16 

13 

10 

15 

14 

13

21 

19 

18 

18 

20

99

Iron 

(Fe)

0.00

Calcium 

(Ca)

759 

757 

734 

727 

758 

778

764 

752 

744 

746 

748 

651

675 

690 

707 

740 

735 

749

733 

698 

702 

642 

699

710

Magnesium 

(Mg)

356 

359 

353 

350 

360 

372

370 

363 

365 

355 

365 

322

320 

330 

345 

360 

360 

368

368 

345 

342 

321 

350 

«i

Sodium 

(Na)

Potassium 

(K)

2,270 

2,320 

2, 300 13 

2,330 

2,520 

2,720

2,610 

2,600 

2,640 

2,570 

2,810 

2,400

2,270 

2,460 

2,630 

2,530 

2,530 

2,560

2,530 

2,200 

2,350 

2,060 

2,370 

9 I7n

Bicarbonate 

(HC03 )

153 

169 

178 

188 

177 

162

163 

175 

179 

200 

189 

189

183 

180 

174 

167 

174 

188

149 

135 

164 

119 

138

ISfi

Sulfate 

(S04)

3,020 

2,980 

2,930 

2,970 

3,020 

3,040

3,000 

2,940 

2,910 

2,930 

2,920 

2,540

2,610 

2,720 

2,800 

2,920 

2,920 

2,930

2,980 

2,800 

2,810 

2,630 

2,880 

9 onn

Chloride 

(Cl)

3,560 

3,660 

3,620 

3,600 

3,940 

4,320

4,150 

4,130 

4,200 

4,040 

4,460 

3,800

3,590 

3,870 

4,140 

4,000 

4,000 

4,080

3,980 

3,490 

3,690 

3,240 

3,710 

 t 7in
Weighted average 

-

15 3

IRQ

25.6 --

15 400

14, 700

22

22

30

29

22

19

723

743

706

726

350

494

351

2

RI7(\

2 250 2

A7A

2,460

1 1ft

122

94

on

159

2 690

2,880

3 9

3

A

3,88
RIO GRANDE BASIN Continued 

CARLSBAD PROJECT MAIN CANAL NEAR CARLSBAD, N. H

LOCATION. At head of Carlsbad project main canal at Avalon Dam, 5 miles north of Carlsbad, Eddy Cou

flow in canal; otherwise samples collected from Lake Avalon at head gates and are those for which 

RECORDS AVAILABLE. Chemical analyses: February 1939 to September 1949. 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 6,310 parts per million Apr. 11-12; minimum, 1,600 p

Total hardness: Maximum, 2,800 parts per million Apr. 11-12; minimum, 880 parts per million July 

EXTREMES, 1939-49. Dissolved solids: Maximum, 6,310 parts per million Apr. 11-12, 1949; minimum, 1

Total hardness: Maximum, 2,810 parts per million June 1-10, 1945; minimum, 880 parts per million 

REMARKS.--Records of specific conductance of daily samples available in district office at Albuquerq

station.

Chemical analyses, In parts per million, water year October 1948 to Se

Date of collection

Oct. 1-2, 1948 

Dec. 21-24, 28-31 

Jan. 1-10, 1949 -

Mar 91-31 - ____ 

Mean 

discharge 

(secondfeet)

PH

7.5 

7.6

7.3 

7.4 

7.5

7.6 

7.6 

7.6 

7.7

Specific 

conductance 

(micromhos at 

25° C )

5,140 

5,290 

5,300 

5,440 

5,810 

6,230 

6,420 

6,590

6,630 

6,650 

6,620 

6,590 

6,630 

6-, 580 

6,500

6,320 

6,240 

6,110 

5,880 

5,800 

5,760 

5,790 

R sm

Silica 

(SiO.)

13 

14

9 3 

9! 9 

9.5

6.8 

8.9 

8.7 

8.4

Iron

(Fe)

Calcium 

(Ca)

596 

606

592 

584 

580

566 

576 

576 

596

Magnesium 

(Mg)

176 

161

198 

195 

194

178 

172 

171 

174

Sodium 

(Na)

Potassium 

(K)

485 

514

770 

779 

770

701 

642 

628 

594

Bicarbonate 

(HCO,)

120 

130

126 

123 

120

117 

123 

127 

134

Sulfate 

(S04)

1,930 

1,920

2,000 

1,990 

1,960

1,900 

1,880 

1,910 

1,900

Chloride 

(Cl)

820 

840

1,260 

1,260 

1,260

1,130 

1,050 

1,000 

995
Apr. 1-3 -----

Apr. 4-10 - 

Apr. 11-12 

Apr. 13-20 ------

Apr. 21-30 - 

May 1-4, 6-11 - 

May 5 

May 12-21 

May 22-31-----~

June 1-5---------

June 6-12 

June 13-20 

June 21-30-------

July 1-10 

July 11-13, 17-20 

July 14-16 

July 21-31 -----~

Aug. 1-10 --

Aug. 11-20 -

Aug. 21-31 -

Sept. 1-10-

Sept. 11-15-

Sept. 16-20-

Sept. 21-25-

Sept. 26-30-

7.7

7.7

7.8

7.9 

7.7

7.5

-LA

5,830

5,710

8,440

8,440

4,100

4,820

4,770

5,060

5,170

5,040

5,010

4,810

4,730

4,930

4,000

2,300

4,270

4,400

4,350

4,170

3,700

3,660

2,770

2,840

4,120

600

694

592

606

610

566

554

576

472

254

502

506

506

486

430

432

174

260

128

126

146

139

141

146

119

60

128

131

130

121

102

99

599

1,070

292

276

412

459

436

475

338

182

371

396

386

362

317

312

136

138

126

126

122

130

137

142

138

105

135

137

140

134

125

126

1,980

2,490

1,830

1,810

1,900

1,900

1,880

1,790

1,750

1,820

1,420

747

1,520

1,560

1,550

1,480

1,290

1,280

1, 520

950

1,710

445

455

665

715

690

750

572

288

630

654

642

598

520

515
WESTERN GULF OF MEXICO BASINS

RIO GRANDE BASIN Continued 

REFINERY INTAKE CANAL NEAR LOVING, N. HEX.

(Weekly samples taken from canal In sec. 13, T. 23 S., R. 28 E., representing water In Harroun Canal diverted from 

Pecos River at dam in sec. 11, T. 23 S., R. 28 EJ.)

Date of 

collection

Oct 28

Dec 23

Feb 3

Specific 

conductance 

(micromhos 

at 25°C )

4,360 

4,360 

4,350 

4,370 

4,380 

4,360 

4,280

4,230 

4,230 

4,110 

4,130 

4,100 

4,060 

3,730 

4,060 

4,160

4,140 

4,190 

4,180 

4,500 

4,740 

4,660 

4,730 

4,710 

4,629

Chloride 

(Cl) 

ppm

670 

670 

660 

660 

68D 

660 

650

650 

645 

630 

635 

620 

625 

545 

625 

635

630 

640 

625 

725 

775 

760 

770 

765 

730

Date of 

collection

Sent 90 _____ ___

Specific 

conductance 

(micromhos 

at 25°C )

4,280 

4,260 

4,410 

4,420 

4,400 

4,450 

4,510 

4,510

4,600 

1,270 

1,460 

3,620 

4,500 

4,580 

4,540 

3,870 

4,450

4,610 

4,590 

4,570 

4,720 

4,620 

4,500 

3,910 

2,920 

i asn

Chloride 

(Cl) 

ppm

670 

670 

690 

700 

705 

700 

715 

720

720 

155 

190 

550 

700 

715 

705 

585 

705

725 

715 

705 

740 

730 

700 

550 

350

R45
RIO GRANDE BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN RIO GRANDE BASIN 

Chemical analyses, In parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

<°F)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

£. - M "»

Bicarbonate 

(HC03 )

Sulfate 

(S04)

Chl

rid

(C

PECOS RIVER BELOW LAKE McMILLAN

Mar. 10, 1949 

10, 100 

8,240 

6,900 

8,290 

5,030

2,640 

3,620 

3,190

11

PECOS RIVER AT

10, 400 

7,340 

7,430 

4,910

5,320 

4,760 

3,540 

3,450

676 

526 

588

257 

198 

249

1,010 

878 

1,100

80 

64 

142 

102

2,340 

2,350 

1,840 

2,150

1,7

1,4

1,8

7

3

5

4

FORD CROSSING IN MAJOR JOHNSON SPRINGS ARE

528 

536

214 

211

949 

953

80 

126 

147 

173

1,920 

1,850

2,4

1,5

1,5

7

7

6

5

4
RIO GRANDE BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN RIO GRANDE BASIN IN NEW ME

Chemical analyses, in parts per million, water year October 1948 to September 1

Date of collection

Mean 

discharge 

(secondfeet)

perature

PH

Specific 

conductance 

(micromhos at 

25° C)

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride 

(Cl)

F

PECOS RIVER AT DAMSITE 3 NEAR CARLSBAD

Oct 13 1948

Mar 10 --

enn

COQ

7QQ

A91

PECOS RIVER AT BATAAN BRIDGE IN CARLSBAD

3,460 

3,270 

3,740 

4,230

3,800 

3,570 

3,730 

3,630

358 

394 

462

110 

126 

143

324 

361

212 

205 

220 

170

1,060 

1,230 

1,410

236 

450 

525 

650

495 

525 

505

SEVEN RIVERS AT MOUTH NEAR LAKEWOOD

Aug. 31 ~

2,220 

2,450

28 

52
HAGERMAN CANAL AT DEXTER

Oct. 11, 1948 

Jan. 18, 1949 

Mar 9

5,030

4,750 336

--

111

294

579

208

193

"

"

--

966

""

1,

BLACK RIVER AT FOREHAND CROSSING NEAR MALAGA

Oct. 12, 1948 

Jan. 19, 1949 

2,020

1,950

404

386

82

69

""

""

12

13

174

188

1,150

1,050

"

"
RIO GRANDE BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN RIO GRANDE BA

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 12, 1948 

Mean 

discharge 

( second - 

feet)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

Chloride 

(Cl)

PJ3COS RIVER AT SPILLWAY OF RED BLUFF DAM NEAR 

11,800 33 545 236 1,940 135 2,020 3,070 

TOYAH CREEK BELOW TOYAH LAKE NEAR PECOS

May 3-11, 1949 7.5 12, 000 8.4 805 233 1,840 53 2,700 2,910 

CHACON CREEK NEAR LARKDO

May 27, 1949 7.7 6,430 7.2 248 143 1,090 327 1,630 1,140 

LOS OLMOS CREEK NEAR RIO GRANDE CITY

May 27, 1949 1/10

May 27, 1949 

7.5

7.8

18,700 23 681 89 3,. 550 106 1,070 6,080

LA JOYA CREEK AT RESERVOIR SITE NEAR SAMFORD

9,340 58 124 | 78 1,870 222 1,150 2,350

I/Instantaneous discharge.
PART 9-COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM 

COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO.

LOCATION.--At bridge in Hot Sulphur Springs, Grand County, one mile downstream from gaging station wh

DRAINAGE AREA. 782 square miles above gaging station.

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1949.

Water temperatures: April to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 105 parts per million Mar. 21-31; minimum, 42 parts p

Total hardness: Maximum, 57 parts per million Feb. 21-28, Mar. 11-20, Apr. 11-20; minimum, 23 part

EXTREMES, 1947-49. Dissolved solids: Maximum, 105 parts per million Mar. 21-31, 1949; minimum, 38 p

Total hardness: Maximum, 58 parts per million July 21-31, Aug. 1-10, 1948; minimum, 20 parts per m

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pa

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mar- 21-31 

Mean 

discharge 

(secondfeet)

109 

107 

107 

128 

114 

100

101 

97.7 

92.0 

99.4 

114 

102

105 

95.5 

97.8 

109 

128 

142

pH

7.1 

7.2 

7.2 

7.3 

7.4 

7.6

7.7 

7.7 

7.7 

7.8 

7.8 

7.7

7.6 

7.7 

7.9 

7.4 

7.4 

7 S

Specific 

conductance 

(micromhos at 

25° C )

128 

126 

122 

121 

126 

126

123 

120 

119 

124 

132 

134

142 

139 

150 

151 

149 

1R1

Silica 

(Si02)

12 

12 

12 

12 

12 

13

13 

13 

13 

14 

14 

14

14 

14 

15 

15 

15 

13

Iron 

(Fe)

0.06 

.05 

.06 

.07 

.09 

.06

.08 

.09 

.11 

.10 

.09 

.18

.27 

.22 

.41 

.21 

.17 

.27

Calcium 

(Ca)

16 

16 

15 

15 

15 

15

15 

15 

15 

15 

16 

16

16 

16 

17 

17 

17 

Ifi

Magnesium 

(Mg)

2.9 

3.0 

3.0 

2.7 

3.1 

3.1

3.0 

3.0 

3.0 

2.9 

3 0 

3.1

3.1 

3.2

3.5 

3.3 

3.5 

3.4

Sodium 

(Na)

5.3 

5.2 

5.7 

6.2 

6.7 

4.0

5.2 

4.4 

3.6 

6.0 

5.5 

5.8

7.5 

6.1 

7.1 

7.2 

7.1 

12

Potassium 

(K)

2.6 

2.2 

3.0 

1.8 

2.6 

3.5

3.2 

2.9 

3.0 

3.2 

3.8 

4.0

5.1 

5.0 

5.6 

5.0 

5.0

Bicarbonate 

(HCO,)

72 

71 

70 

68 

70 

66

68 

66 

64 

70 

72 

74

78 

76 

82 

78 

80 

86

Sulfate 

(S04)

5.1 

5.5 

5.7 

5.9 

6.7 

6.6

6.7 

6.2 

6.2 

6.3 

6.3 

6.6

6.9 

6.6 

7.4 

9.1 

8.8 

9.3

Chloride 

(Cl)

1.2 

1.2 

1.4 

1.2 

1.7 

1.1

1.2 

1.2

1.2 

1.1 

1.5 

1.3

2.3 

1.9 

2.5 

2.3 

1.9 

3.1
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT HOT SULPHUR SPRINGS, COLO. Contin

Chemical analyses, In parts per million, water year October 1948 to September 

Date of collection

Apr. 1-10, 1949 

Sept. 21-30 .

Weighted average

Mean 

discharge 

(secondfeet)

167 

272 

1,037 

1,120 

1,879 

1,900

2,243 

4,166 

3,489 

2,400 

1,240 

661

393 

346 

182 

164 

112 

83.5

660

PH

7.0 

7.2 

7.1 

7.1 

6.9 

6.9

6.8 

6.7 

6.8 

6.8 

6.8 

7.0

7.1 

7.2 

7.1 

7.1 

7.2 

7.3

"

Specific 

conductance 

(micromhos at 

25° C )

141 

143 

112 

87 

73 

67

60 

80 

58 

59 

71 

87

92 

90 

115 

116 

125 

123

79

Silica 

(SiO.)

12 

12 

11 

11 

10 

10

8.5 

9.0 

7.7 

7.1 

8.1 

9.1

9.2 

8.6 

11 

11 

12 

10

9.3

Iron

(Fe)

0.19 

.16 

.29 

.27 

.23 

.17

.16 

.12 

.07 

.08 

.12 

.09

.12 

.13 

.07 

.09 

.09 

.08

0.14

Calcium 

(Ca)

16 

17 

13 

9.8 

8.8 

7.8

7.4 

8.4 

7.0 

7.4 

8.8 

11

11 

11 

14 

14 

15 

15

9.6

Magnesium 

(Mg)

3.0 

3.5 

2.5 

2.4 

1.8 

1.6

1.6 

1.9 

1.4 

1.4 

1.7 

2.0

2.0 

2.1 

2.5 

2.7 

2.8 

3.0

1.9

.

Sodium 

(Na)

7.4 

7.3 

5.7 

4.0 

3.7 

3.2

1.5 

2.9 

3.2 

4.8 

3.7 

5.2

4.0 

3.3 

5.9 

5.2 

6.1 

5.7

3.8

Potassium 

(K)

3.4 

2.6 

3.2 

1.6 

2.1 

1.8

2.2 

3.0 

3.5 

2.6 

2.7 

3.0

3.7 

1.6 

1.6 

2.2 

2.7 

2.9

2.7

Bicarbonate 

(HCOS)

74 

74 

56 

42 

37 

33

30 

36 

34 

38 

42 

54

52 

48 

64 

64 

70 

70

42

Sulfate 

(S04)

7.9 

11 

8.8 

6.7 

5.9 

5.3

3.9 

6.0 

3.7 

4.4 

3.5 

3.6

3 8 

3.7 

4.9 

5.0 

5.4 

6.0

5.2

Chloride 

(Cl)

2.0 

2.0 

1.9 

1.7 

1.6 

1.1

1.1 

1.0 

1.0 

.5 

.8 

1.1

1.1 

.8 

1.0 

1.0 

1.2 

.8

1.1
Temperature (° F ) of water, water year October 

Day

1 

1 9

in

19

25

9fi

27

29

October November December January February March 
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO

LOCATION.--At Shoshone power plant, 6 miles upstream from gaging station, which is at Glanwood Spri

Roaring Fork.

DRAINAGE AREA. 4,560 square miles above gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1941 to September 1949.

Water temperatures: May to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 565 parts per million Oct. 1-10; minimum, 126 parts 

Total hardness: Maximum, 274 parts per million Oct. 1-10; minimum, 89 parts per million June 21

EXTREMES, 1941-49. Dissolved solids: Maximum, 2,030 parts per million Aug. 10, 1947; minimum, 10

Total hardness: Maximum, 1,480 parts per million Aug. 10, 1947; minimum, 72 parts per million J

REMARKS. Discharge records for gaging station at Glenwood Springs, Colo., for water year October 

No appreciable inflow between sampling point and gaging station except during periods of heavy 

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per milMon, water year October 1948 

Date of collection

Oct. 1-10, 1948 -

Jan. 1-10, 1949 

Vah 91 Oft

Mar 91-31- ___

Mean 

discharge 

(secondfeet)

878 

913 

1,238 

1,268 

1,081 

955

922 

1,059 

890 

906 

1,150 

1,188

1,167 

906 

736 

972 

932 

i nno

PH

7.3 

7.5 

7.7 

7.2 

7.6 

7.9

7.9 

7.9 

7.9 

7.6 

7.8 

7.7

7.8 

7.7 

7.7 

7.2 

7.4

7 R

Specific 

conductance 

(micromhos at 

25° C )

947 

950 

624 

573 

702 

754

852 

663 

799 

808 

659 

631

679 

794 

732 

720 

772 

772

Silica 

(Si02)

11 

11 

9.8 

12 

12 

13

13 

12 

12 

12 

12 

11

11 

12 

13 

12 

13 

14

Iron 

(Fe)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.00 

.00 

.00

.00 

.01 

.01 

.00 

.00 

.ni

Calcium 

(Ca)

80 

78 

56 

54 

61 

63

69 

55 

61 

62 

53 

52

55 

61 

58 

58 

61 

K2

Magnesium 

(Mg)

18 

18 

13 

13 

14 

15

16 

13 

14 

14 

12 

12

12 

14 

13 

14 

15 

Ifi

Sodium 

(Na)

Potassium 

(K)

92 

93 

57 

46 

61 

72

85 

61 

84 

84 

64 

60

66 

83 

75 

69 

73 

71

Bicarbonate 

(HCO,)

160 

162 

132 

122 

134 

140

146 

124 

138 

136 

124 

128

128 

134 

134 

130 

136 

146

Sulfate 

(S04)

158 

151 

101 

92 

109 

114

122 

94 

107 

105 

88 

80

88 

103 

99 

99 

106 

115

Chlori

(Cl)

12

12

10

12

1

12

1

10

1

1
Weighted average

1,556 

3,818 

5,028 

5,983 

6,696

7,727 

13,170 

12,080 

8,520 

5,203 

3,840

2,103 

1,841 

1,252 

1,179 

1,233 

1,077

2,829

7.8 

7.9 

7.3 

7.4 

7.4

7.5 

7.6 

7.7 

7.7 

7.8 

7.8

8.0 

8.0 

7.2 

7.7 

7.7 

7.7

--

572 

382 

301 

270 

241

261 

230 

205 

232 

320 

390

517 

514 

686 

775 

742 

746

388

13 

14 

11 

12 

10

11 

10 

9.8 

8.6 

9.1 

9.3

10 

9.7 

11 

13 

12 

12

11

.01 

.08 

.17 

.04 

.04

.02 

.02 

.03 

.02 

.03 

.06

.05 

.05 

.06 

.04 

.03 

.03

0.03

50 

41 

33 

31 

29

31 

32 

27 

28 

33 

40

52 

49 

56 

67 

67 

68

39

13 

9.2 

7.3 

6.6 

6.6

6.1 

4.9 

5.2 

5.7 

7.8 

8.5

9.6 

9.4 

16 

13 

18 

16

8.5

47 

23 

17 

18 

17

13 

7.1 

7.8 

12 

23 

28

38 

42 

63 

65 

58 

60

28

128 

116 

96 

96 

88

90 

93 

77 

76 

90 

101

106 

108 

129 

136 

138 

136

102

87 

56 

41 

35 

33

35 

28 

28 

37 

52 

60

86 

81 

110 

118 

125 

124

56

60 

25 

20 

20 

20

13 

6 

9 

12 

26 

34

53 

55 

86 

90 

87 

88

37
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO

Temperature (° F ) of water, water year October 1948 to 

Day

2

g

in

n o

on

94

9A

25

on

verage

October November December January February March April 
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CAMEO, COLO.

LOCATION. At diversion dam, about li miles upstream from Cameo, Mesa County, and 5 miles downstre

DRAINAGE AREA. 8,055 square miles above gaging station.

RECORDS AVAILABLE. Chemical analyses: October 1933 to September 1949.

Water temperatures: April to September 1949. 

REMARKS. Discharge records for gaging station near Cameo, Colo., for water year October 1948 to S

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

samples available in regional office at Salt Lake City, Dtah.

Chemical analyses, In parts per million, water year October 1948 

Date of collection

Oct. 1-10, 1948 

Nov. 21-30 ------

Dec. 1-10 

Dec. 21-31 - 

Jan. 1-10, 1949 

Feb. 1-10 ----- 

Mar 71 -31 

Mean 

discharge 

(secondfeet)

,636 

,871 

,976 

,966 

,796 

,654

,405 

,609 

,403 

,386 

,627 

,793

,574 

,482

,628 

1,557 

1 MM

PH

7.4

7.7

7.8 

7.4

7.9

7.6

Specific 

conductance 

(micromhos at 

25° C )

1,370 

1,320 

1,140 

1,100 

1,160 

1,250

1,360 

1,160 

1,340 

1,370 

1,160 

1,080

1,270 

1,200

1,230 

1,260 

i .a«n

Silica 

(SiO.)

11 

12

13 

11

10

10

Iron 

(Fe)

Calcium 

(Ca)

92 

81

79 

77

75 

79

Magnesium 

(Hg)

28 

24

22 

20

22 

25

Sodium 

(Na)

Potassium 

(K)

142 

133

135 

140

140 

144

Bicarbonate 

(HCO,)

195 

189

184 

174

176 

192

Sulfate 

<S04)

201 

189

174 

157

161 

190

Chlorid

(Cl)

201 

167

176 

185

190 

182
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CAMEO, COLO. Continu

Chemical analyses, in parts per million, water year October 1948 to Sept

Date of collection

Apr. 1-10, 1949 

Apr. 21-30 

July 1-10 

July 21-31 

Aug. 1-10 

Sept. 1-10 --

Sept. 21-30 

Weighted average

Mean 

discharge 

(secondfeet)

1,929 

2,448 

5,746

9,388 

10,610

12,380 

21,730 

20,330 

14,260 

8,737 

6,323

3,922 

3,084 

2,069 

1,908 

2,297 

1,964

4,614

PH

7.7

7.8

7.8 

7.6

7.8 

7.8

-

Specific 

conductance 

(micro - 

mhos at 

25" C )

1,190 

971 

629 

476 

460 

407

377 

321 

285

456 

550

770 

859 

1,040 

1,180 

1,080 

1,190

608

Silica 

(SiO.)

13 

12

9.9 

13

11 

11

-

Iron 

(Fe)

Calcium 

(Ca)

73 

46

37 

42

70 

80

-

Magnesium 

(Mg)

22 

10

5.8 

8.S

19 

23

-

So- podium tas- 

(N > sium 

(Na) (K)

96 

37

23 

39

78 

113

-

Bicarbonate 

(HCO,)

179 

156

123 

109

154 

176

--

Sulfate 

(SO,)

147 

55

36 

65

128 

172

--

Chloride 

(Cl)

127 

34

18 

46

114 

153

--
Temperature (° F ) of water, water year October 1948 

Day

o

1 9

91

9Q

31

October November December January February March Apr
COLORADO RIVER MAIN STEM--Continued 

COLORADO RIVER NEAR CISCO, UTAH

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

DRAINAGE AREA. 24,100 square miles.

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1949.

Sediment records: May 1929 to September 1949.

EXTREMES, 1948-49. Sediment loads: Maximum, 547,000 tons per day May 5; minimum, less than 100 tons 

EXTREMES, 1929-49. Sediment loads: 2,790,000 tons per day Oct. 14, 1941; minimum, less than 100 tons 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pap

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, In parts per million, water year October 1948 to Sept

Date of collection

Oct. 1-2, 5-8, 1948 - 

Oct. 12, 14-17, 19 -- 

Oct. 21-31 

Dec 11 20

Dec 21 31

Jan. 1, 3-6, 1949 

Uoi* 91 Q1

Apr. 21-30 

Mav 21-31 

Mean 

discharge 

(secondfeet)

2,648 

2,693 

3,069 

3,526 

3,558 

3,223

2,779 

3,328 

2,953 

2,466 

3,495 

3,258

2,805 

3,230 

4,959 

3,299 

3,628

4,562 

7,900 

18, 850 

20, 460 

21,490 

20 sun

PH

8.2 

8.2

8.2 

7.5

8.0 

8.0

7.8 

7.9

Specific 

conductance 

(micromhos at 

25° C )

2,130 

2,170 

1,970 

1,820 

1,890 

1,810

1,930 

1,760 

1,870 

1,950 

1,990 

1,430

1,610 

1,540 

1,520 

1,710 

1,600

1,590 

1,030 

496 

501 

473 

4fts

 

Silica 

(SiO.)

16 

16

15 

12

13 

12

14 

12

Iron 

(Fe)

Calcium 

(Ca)

148 

128

114

.^

114

105 

111

90 

50

Magnesium 

(Mg)

72 

56

52 

44

46 

53

30 

12

Sodium 

(Na)

Potassium 

(K)

255 

219

212 

255

168 

187

88 

33

Bicarbonate 

(BCO,)

195 

217

218 

207

208 

212

214 

148

Sulfate 

(80,)

714 

506

474 

403

400 

458

238 

88

Chloride 

(Cl)

218 

222

198 

302

158 

173

80 

22
July 11, 13-14, 16, 19

Aug. 11, 15, 19 

22 150

37 200

22 550

14, 800

4,013 3

1 7<1

8.0

8.0

8.1 8 *

660

1,600

13

14

65

146

20

53

48

133

144

217

Oft

166

532
390 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR CISCO, UTAH--Continued

Suspended sediment, water year October 1948 to September 1949

Day

o

13

19

9A

23

25

Oft

29

Totalo

Q

12

19

9A

22 

23 

24 

25 -- 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean

charge 

(secondfeet)

2,610 

2,570 

2,710 

2,680 

2,570

2,500 

2,810 

2,830 

3,100 

2,980 

2,720 

2,620 

2,560 

2,560 

2,900

2,760 

2,680 

2,720 

2,640 

2,810

2,710 

2,800 

2,890 

2,920 

2,960

3,030 

2,900 

2,850 

3,790 

3,490 

3,420

88,090

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.01 

I/. 06 

.14

.12 

.06 

.04 

I/. 08

y. 05

I/. 03 

.01 

.01 

.02 

.01

.01 

.00 

I/. 00 

.00 

I/. 01

.01 

.01 

.01 

.01 

.02

.02 

.04 

.04 

.04 

.04 

.03

Tons 

per 

day

1,410 

1,390 

732 

4,300 

9,710

8,100 

4,560 

3,080 

6,700 

4,020 

2,200 

707 

691 

1,380 

783 

745 

0 

0 

0 

759 

732 

756 

781 

788 

1,600

1,640 

3,130 

3,080 

4,100 

3,770 

2,770

74, 390

January

2,980 

2,940 

2,550 

2,200 

2,250

2,350 

2,400 

2,300 

2,300 

2,400 

2,600 

3,000 

3,500 

3,900 

4,000

4,100 

4,200 

3,700 

3,200 

2,750 

2,800 

2,900 

3,050 

3,200 

3,500 

3,700 

3,650 

3,500 

3,000 

3,100 

2,600

94, 620

0.01 

I/. 01 

.01 

.01 

.01

.01 

I/. 02 

.03 

I/. 02 

I/. 02 

.02 

.03 

.03 

.01

. I/. 01

.02 

.01 

.01 

.01 

.02 

.03 

.06

--

805 

794 

688 

594 

608

634 

1,300 

1,860 

1,240 

1,300

1,400 

2,430 

2,840 

1,050

915

1,890 

999 

986 

945 

1,620 

2,510 

4,210

39,850

November

Mean

charge 

(secondfeet)

3,440 

3,530 

3,640 

3,440 

3,570

3,620 

3,680 

3,570 

3,280 

3,490 

3,400 

3,450 

3,720 

3,780 

3,620

3,620 

3,280 

3,440 

3,700 

3,570

3,280 

3,300 

3,490 

3,140 

3,210

3,660 

3,580 

3,280 

2,560 

2,730

103, 070

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.02 

.02 

.02 

.01

.01 

.01 

.01 

.01 

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.01 

.00 

.00

.01 

.00 

.00 

.01 

.00

Tons 

per 

day

2,790 

1,910 

1,970 

1,860 

964

977 

994 

964 

886 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0 

0 

942 

0 

0

988 

0 

0 

691 

0

15,940

February

2,500 

2,450 

2,400 

2,600 

2,700

2,850 

3,000 

3,200 

3,200 

3,150

3,100 

3,250 

3,200 

3,250 

3, 300

3,400 

3,400 

3,250 

3, 050 

3,100

3,300 

3,500 

3,850 

. 4, 100 

4,400 

4,700 

5,000 

5,100

94, 300

0.08 

.08 

I/. 06 

I/. 06 

.06

.08 

I/. 08 

.08 

.09 

.02

.02 

.06 

.04 

.05 

.03

.09 

.05 

.05 

.12 

.01

.06

I/. 09 

.16 

I/. 27

y . 45

I/. 45

y. 45

.43

--

5,400 

5,290 

3,890 

4,210 

4,370

6,160 

6,480 

6,910 

7,780 

1,700

1,670 

5,270 

3,460 

4,390 

2,670

8,260 

4,590 

4,390 

9,880 

837

5,350 

8,500 

16,600 

29, 900 

53, 500 

57, 100 

60, 800 

59, 200

388, 600

December

Mean

charge 

(secondfeet)

2,480 

2,730 

3,080 

3,170 

3,170

2,960 

2,520 

2,450 

2,420 

2,810 

3,030 

3,230 

3,280 

3,680 

3,530

3,320 

3,340 

3,320 

3,250 

3,300

3,140 

2,960 

3,140 

3,220 

3,200

3,170 

2,870 

2,590 

2,760 

2,620 

2,810

93, 550

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01

.01 

.01 

.02 

.01 

.01 

.01 

.02 

.02 

.02 

.02

.02 

.01 

.01 

.01 

.01

.01 

.00 

.00 

.01 

.01

.01 

.01 

.01 

.01 

.00 

I/. 01

Tons 

per 

day

672 

737 

832 

856 

856

799 

680 

1,320 

653 

759 

818 

1,740 

1,770 

1,990 

1,910

1,790 

902 

896 

878 

891

848 

0 

0 

869 

864

856 

775 

699 

745 

0 

759

28, 160

March

5,200 

5,400 

5,200 

5,100 

5,000

5,100 

5,180 

5,200 

4,400 

3,810

3,380 

3,360 

3,360 

3,250 

3,230

3,080 

3,250 

3,380 

3,450 

3,250

3,450 

3,620 

3,510 

3,550 

3,700 

3,520 

3,410 

3,410 

3,780 

3,970 

3,990

122, 490

0.36 

.31 

.27 

.28 

.30 

.32 

.31 

.28 

.24 

.14

.06 

.05 

.05 

.07 

.04

.04 

.04 

.05 

.03 

I/. 03

I/. 04 

.04 

.04 

.04 

.03 

.04 

.04 

.05 

.05 

.06 

.08

50, 500 

45, 200 

37, 900 

38, 600 

40, 500

44,100 

43, 400 

39, 300 

28, 500 

14,400

 5,480 

4,540 

4,540 

6,140 

3,490

3,330 

3,510 

4,560 

2,790 

2,630

3,730 

3,910 

3,790 

3,830 

3,000 

3,800 

3,680 

4,610 

5,100 

6,430 

8,620

473, 900

I/Estimated or interpolated.
COLORADO RIVER MAIN STEM 391

COLORADO RIVER MAIN STEM--Continued

COLORADO RIVER NEAR CISCO, UTAH--Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

0

Q

12

20

21

99

no

24

97

9ft

29

31 

Total -

2

g

13

tft

19

21

91

25 

26 

27 

28 

29 

30 

31 

.Total -

April

Mean

charge 

(secondfeet)

4,010 

3,780 

3,660 

3,800 

3,780

3,400 

3,660 

4,580 

5,620 

6,340

6,240 

5,970 

5,990 

7,100 

7,870 

7,900 

8,170 

9,160 

10,200 

10,400

11,600 

12,800 

14, 600 

16, 800 

19, 500

22, 000 

23,200 

22,700 

21,700 

23, 600

310,130

Suspended sediment

Mean 

concentration 

(percent)

1/0.08 

I/. 07 

I/. 06 

I/. 05 

.04

.04 

.06 

.10 

.17 

.17

.17 

.16 

.14 

.32 

.40 

.29 

.25 

.18 

.36 

!/. 42 

I/. 47 

I/. 48 

I/. 50 

I/. 48 

.32

.21

.17 

.16 

.12 

.27

Tons 

per 

day

8,660 

7,140 

5,930 

5,130 

4,080

3,670 

5,930 

12,400 

25,800 

29, 100

28, 600 

25,800 

2/22,800 

1/61, 500 

85, 000 

61,900 

55, 100 

44, 500 

99, 100 

118, 000

147, 000 

166, 000 

197, 000 

218,000 

2/172, 000

125, 000 

106, 000 

98, 000 

70, 300 

172, 000

2,181,000

July

24,400 

22,900 

22,900 

23,400 

23, 100 

22,800 

21,800 

21,800 

21,500 

20,900 

20, 500 

19, 000 

17, 000 

14, 800 

13, 000 

11,900 

10, 900 

10,200 

9,810 

9,160 

9,540 

9,420 

8,950 

8,220 

8,440

9,510 

10, 400 

9,540 

8,340 

7,200 

6,380

457,710

1/0.02 

.02 

.02 

.05 

.08

.02 

.02 

I/. 02 

.03 

.12 

.05 

.03 

.04 

I/. 03 

.02

.02 

I/. 01 

I/. 01 

.01 

.01 

.01 

.03 

.03 

I/. 03 

I/. 07

.11 

I/. 05 

I/. 02 

.01 

.01 

I/. 01

--

13,200 

12,400 

12,400 

31,600 

49, 900

12,300 

11,800 

11,800 

17,400 

2/89,600 

27, 700 

15,400 

18, 400 

7,990 

7,020

6,430 

2,940 

2,750 

2,650 

2,470 

2,580 

7,630 

7,250 

6,660 

16, 000

28, 200 

14, 000 

5,150 

2,250 

1,940 

17,20

429, 500

Total discharge for year (second-foot-day

May

Mean

charge 

( second - 

feet)

24, 200 

21,200 

19, 700 

23,300 

24, 600

23,300 

20, 000 

17, 900 

15,900 

14, 500

15, 200 

18,600 

20, 400 

20,900 

21,300 

24,300 

25,700 

24, 600 

23, 000 

20,900

20, 600 

19, 000 

17, 100 

16,400 

16,800

18, 000 

20, 900 

22,900 

24, 800 

26,800 

27,300

650, 100

Suspended sediment

Mean 

concentration 

(percent)

0.22 

.09 

.05 

.32 

.81

.21 

.06 

.05 

.04 

.05

.08 

.13 

.08 

.10 

.04 

.04 

.06 

.05 

.05 

.06 

.02 

.02 

.02 

.04 

.03

.03 

.08 

.06 

.06 

.05 

.06

Tons 

per 

day

144, 000 

51, 500 

26,600 

201, 000 

2/547,000

132,000 

32,400 

24, 200 

17,200 

19, 600

32,800 

65,300 

44, 100 

56, 400 

23, 000 

26,200 

41, 600 

33,200 

31,000 

33,900

11,100 

10,200 

9,230 

17, 700 

13,600

14, 600 

54, 100 

37, 100 

40,200 

36,200 

44,200

1, 862,000

August

5,540 

5,230 

4,310 

4,680 

4,470

4,350 

4,130 

4,530 

5,620 

6,200 

5,410 

4,780 

4,310 

4,210 

3,910

3,340 

2,990 

2,850 

2,720 

2,680 

2,600 

2,520 

2,450 

2,280 

2,590

2,500 

2,710 

2,490 

2,350 

2,230 

2,030

113,010

0.07 

I/. 05

y. 02 

y. os

.02

.02 

.02 

.26 

1.61 

1 39 

.94 

I/. 64 

I/. 35 

I/. 10 

.03

.01 

.02 

.02 

.01 

.01 

.01 

.01 

.02 

.06 

.10

.07 

.07 

.01 

.01 

I/. 01 

.01

--

10, 500 

7,060 

2,330 

3,790 

2,410

2,350 

2,230 

2/38, 600 

2/248, 000 

2,241, 000 

137, 000 

82,600 

40, 700 

11,400 

3,170 

902 

1,610 

1,540 

734 

724 

702 

680 

1,320 

3,700 

2/7, 590

2/5, 130 

2/5, 560 

699 

634 

602 

548

865, 800

June

Mean

charge 

(secondfeet)

26, 800 

24, 800 

21,600 

18, 800 

18, 600

20,300 

20, 800 

21,600 

23,400 

24, 800

26, 000 

29,300 

31,700 

34, 800 

36,200 

36, 000 

36, 400 

40, 800 

48, 100 

52, 700

53, 200 

44, 400 

40, 300 

38, 700 

40, 400

34, 900 

32, 000 

29, 600 

29, 100 

27, 000

963, 000

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

I/. 02 

.02 

.05

.06 

.08 

.05 

.08 

.04

.10 

.14 

.14 

.08 

.06 

.03 

.05 

.07 

.12 

.10 

.07 

.06 

.05 

.07 

.10 

.04 

.04 

.02 

.03 

.06

Tons 

per 

day

14, 500 

13, 400 

11, 700 

10, 200 

25,100

32,900 

44, 900 

29, 200 

44, 200 

26, 800

70, 200 

111,000 

120, 000 

75, 200 

58, 600 

29, 200 

49, 100 

77, 100 

156, 000 

142, 000

101, 000 

71,900 

54, 400 

73, 100 

109, 000

37, 700 

34, 600 

16, 000 

23, 600 

43, 700

1, 706, 000

September

1,920 

2,010 

1,930 

1,960 

1,960

2,190 

2,090 

2,190 

2,300 

2,370 

2,570 

2,760 

2,710 

3,140 

3,430

3,530 

3,620 

3,700 

3,420 

2,850 

2,570 

2,560 

2,530 

2,570 

2,620

2,400 

2,440 

2,250 

3,450 

3,890

79, 930

0.04 

.04 

.04 

.04 

I/. 03

I/. 02 

.01 

.01 

.02 

.13 

.13 

.08 

.04 

.03 

.04

I/. 03 

.02 

.02 

.01 

.01 

"1/.01 

I/. 01 

.01 

.01 

.01

.01 

.01 

.01 

1.83 

.44

--

2,070 

2,170 

2,080 

2,120 

1,590

1,180 

564 

591 

1,240 

8,320 

9,020 

5,960 

2,930 

2,540 

3,700

2,860 

1,950 

2,000 

923 

769 

694 

691 

683 

694 

707

648 

659 

608 

2/195,000 

46, 200

301,200

3, 170, 000 

8.366.000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.

256683 O - 53 - 26
392 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT KITE, UTAH

LOCATION. At gaging station at Hite, San Juan County, a quarter of a mile upstream

from Trachyte Creek, 1 mile downstream from White Canyon,8 miles downstream from Dirty

Devil River, and 84 miles upstream from San Juan River. 

DRAINAGE AREA. 76,600 square miles. 

RECORDS AVAILABLE. Water temperatures: May to September 1949.

Sediment records: October 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 778,000 tons per day June 15; minimum,

1,010 tons per day Sept. 6. 

REMARKS. Records of discharge for water year October 1948 to-September 1949 given

in Water-Supply Paper 1149.

Temperature (°F) of water, May to September 1949

Day

3 -

19

25

OQ

30

verage

March April May

63

OJ

OJ

63

61

62

64

63

63

6*

*~

63

OJ

June

00

68

67

69

67

68

69

67

July

76

76

76

78

I O

I O

I 3

August

pi

0.1

on

76

78

i o

78

"

CJU

78

September

on

on

7ft

an

74

70

to

to

\&

(U

I 3
COLORADO RIVER MAIN STEM 393

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT BITE, UTAH Continued 

Suspended sediment, water year October 1948 to September 1949

Day

in

91

22

ng

30 

TotalQ

18

21 ...... 

22 

23 

24 

25 -----

26 

27 

28 ------ 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

3,590 

3,590 

3,680 

3,660 

3,700

3,790 

3,740 

3,630 

3,780 

4,090 

4,320 

4,600 

4,440 

4,180 

4,010

3,900 

3,980 

4,060 

4,090 

4,050 

4,040 

4,020 

4,180 

4,120 

4,270

4,270 

4,360 

5,080 

5,240 

5,310 

6,610

130, 380

Suspended sediment

Mean 

concentration 

(percent)

0.06 

.05 

.10 

.08 

.06

.06 

.04 

I/. 04 

.04 

.04

.04 

.09 

.08 

.08 

.07

.06 

.05 

.05 

I/. 08 

.10

.06 

.05 

.05 

.04 

.04

.04 

.04 

.19 

.15 

.10 

.16

Tons 

per 

day

5,820 

4,850 

9,940 

7,910 

5,990 

6,140 

4,040 

3,920 

4,080 

4,420 

4,670 

11,200 

9,590 

9,030 

7,580

6,320 

5,370 

5,480 

8,830 

10,900 

6,540 

5,430 

5,640 

4,450 

4,610 

4,610 

4,710 

2/27,300 

21,200 

14,300 

2/29,700

264, 600

January

3,490 

3,360 

3,570 

3,320 

2,900 

2,700 

2,800 

2,900 

2,950 

2,900

3,060 

3,780 

4,640 

5,260 

5,430

5,410 

5,570 

5,900 

5,400 

4,690

4,240 

4,010 

4,220 

4,380 

4,940 

5,470 

5,590 

5,470 

5,150 

4,890 

5,130

133, 520

0.02 

.02 

.02 

.02 

I/. 02 

I/. 03 

.03 

.02 

.02 

.02

.02 

.03 

.04 

.03 

.05

.11 

.04 

.10 

.04 

.03

.02 

.03 

I/. 02 

.02 

.02

.04 

.03 

.02 

.04 

.02 

.02

-

1,880 

1,810 

1,930 

1,790 

1,570 

2,190 

2,270 

1,570 

1,590 

1,570 

1,650 

3,060 

5,010 

4,260 

7,330

16, 100 

6,020 

15,900 

5,830 

3,800

2,300 

3,250 

2,280 

2,370 

2,670

5,910 

4,530 

2,950 

5,560 

2,640 

2,770

124,400

November -

Mean

charge 

(secondfeet)

6,630 

5,880 

5,610 

5,380 

5,240

5,080 

5,190 

5,310 

5,340 

5,400 

5,290 

5,280 

5,280 

5,190 

5,360

5,520 

5,380 

5,360 

5,100 

5,010 

5,330 

5,410 

5,190 

5,120 

5,480 

5,240 

5,120 

5,360 

5,220 

4,880

160, 180

Suspended sediment

Mean 

concentration 

(percent)

0.15 

.26 

.24 

.21 

.12

.08 

.06 

.08 

.06 

.06

.06 

.06 

!/. 06 

.05 

.05

.05 

.06 

.05 

.06 

.04 

.05 

.05 

.05 

.04 

.05

.05 

I/. 04 

.02 

.03 

.02

Tons 

per 

day

26,900 

41,300 

36,400 

30,500 

17,000

11,000 

8,400 

11,500 

8,650 

8,750

8,570 

8,550 

8,550 

7,010 

7,240 

7,450 

8,720 

7,240 

8,260 

5,400

7,200 

7,300 

7,010 

5,530 

7,400

7,070 

5,530 

2,890 

4,230 

2,640

334, 200

February,

4,770 

4,550 

4,110 

3,790 

4,040 

4,060 

4,110 

4,450 

4,790 

4,740 

4,660 

4,740 

4,840 

4,710 

4,960

5,290 

5,310 

5,100 

4,810 

4,520

4,610 

4,880 

5,120 

5,500 

5,880

6,510 

7,040 

7,710

139,600

0.02 

.01 

.02 

.02 

.02 

.02 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.03 

.02 

.02 

!/. 02 

.02

.02 

.04 

.06 

.06 

.07

.11 

.18 

.27

2,580 

1,230 

2,220 

2,050 

2,180 

2,190 

,110 

,200 

,290 

,280

,260 

,280 

,310 

,270 

,340

4,280 

2,870 

2,750 

2,600 

2,440

2,490 

5,270 

8,290 

8,910 

11,100

19,300 

34, 200 

56,200

184, 500

December

Mean

charge 

(secondfeet)

4,110 

4,160 

4,200 

3,900 

3,900

4,140 

4,020 

4,110 

3,940 

3,620

3,640 

3,810 

4,380 

4,890 

5,030 

5,480 

5,610 

5,540 

5,380 

5,430

5,260 

5,260 

5,500 

5,240 

5,060 

4,560 

4,550 

4,120 

3,980 

4,060 

3,760

140, 640

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.04 

.06 

.05 

.02

.02 

.02 

.02 

.02 

.02 

.04 

.03 

.07 

.07 

.08 

.07 

.06 

.05 

.04 

I/- 04 

.05 

.05 

.08 

.05 

.04

.03 

.03 

.02 

.02 

.02 

.02

-

Tons 

per 

day

2,210 

4,490 

6,800 

5,260 

2,110

2,240 

2,170 

2,220 

2,130 

1,940 

3,930 

3,090 

8,280 

9,240 

10, 900

10, 400 

9,100 

7,480 

5,800 

5,860

7,100 

7,100 

11,900 

7,070 

5,460 

3,700 

3,690 

2,220 

2,150 

2,190 

2,030

160, 300

March

7,750 

7,890 

8,120 

7,820 

7,840 

7,800 

8,090 

8,050 

8,320 

7,980

7,340 

6,840 

6,610 

6,570 

6,780

6,860 

7,150 

7,710 

8,090 

10,900

12, 100 

12, 000 

10, 300 

10, 200 

10, 100 

9,850 

9,800 

9,280 

9,080 

9,100 

9,490

265, 810

0.20 

.20 

.22 

.28 

.29 

.28 

.19 

.19 

.23 

.26 

.24 

.24 

.21 

.15 

.14

.13 

.13

.15 

.18 

.60 

I/. 80 

I/. 73 

.46 

.36 

.33

.31 

.27 

.29 

.29 

.33 

.28

41, 800 

42,600 

48,200 

59, 100 

61, 400 

59,000 

41,500 

41,300 

51, 700 

56,000 

47,600 

44, 300 

37, 500 

26, 600 

25, 600

24, 100 

25, 100 

31,200 

39,300 

2/190, 000

261,000 

237, 000 

128, 000 

99, 100 

90, 000

82, 400 

71,400 

72, 700 

71, 100 

81, 100 

71,700

2,259,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
394 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT HITE, UTAH Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

2

o

g

13

19

21

22

25

no

no

Ofl

31 

Total2

g

12

19

18

19

20 

21 

22 

23 - 

24 

25 - 

26 

27 

28 - 

29-- 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

10, 000 

10, 100 

9,360 

8,610 

8,120

7,930 

7,800 

7,510 

7,620 

8,590 

9,850 

11,200 

12, 500 

15,400 

14, 800

14, 800 

15, 000 

15,200 

17, 000 

18, 400

18, 700 

19, 200 

20,900 

23,200 

26, 600 

29, 700 

32, 500 

34, 400 

35, 700 

35, 700

506, 390

Suspended sediment

Mean 

concentration 

(percent)

0.48 

.26 

.26 

.30 

.23

.24 

.21 

.17 

.18 

.13

.19 

.24 

.32 

.31 

I/. 32

.32 

.42 

.48 

.46 

.41 

.42 

.42 

.45 

.52 

.55 

.58 

.52 

I/. 48 

.44 

.39

Tons 

per 

day

130, 000 

70,900 

65, 700 

69, 700 

50, 400

51, 400 

44,200 

34, 500 

37, 000 

30, 200

50, 500 

72, 600 

108, 000 

129, 000 

128, 000

128, 000 

170, 000 

197, 000 

211,000 

204, 000

212, 000 

218,000 

254, 000 

326, 000 

395, 000

465, 000 

456, 000 

446, 000 

424, 000 

376, 000

5, 554, 000

July

44, 900 

41, 400 

38,400 

38, 000 

40, 000

40, 700 

39, 000 

37,400 

36, 400 

34, 000 

33, 100 

32,600 

31,200 

27, 700 

25, 000

23, 000 

21,400 

19, 800 

18, 600 

17, 500

16, 500 

15,900 

15,700 

15,200 

14, 300

14, 200 

14, 000 

14, 600 

15,000 

14, 000 

12, 400

801, 900

0.16 

.19 

.19 

.15 

.48

.62 

.51 

.48 

. 38 

.34

.31 

.30 

I/. 31 

.31 

.31

.29 

.30 

.24 

.17 

.14 

.12 

!/. 13 

.14 

.22 

.16 

.13 

.10 

.22 

.20 

.16 

.13

-

194, 000 

212, 000 

197, 000 

154,000 

2/526, 000

681, 000 

537, 000 

485, 000 

373, 000 

312, 000

277, 000 

264, 000 

261, 000 

232, 000 

209, 000

180, 000 

173, 000 

128, 000 

85, 400 

66, 200 

53, 500 

55, 800 

59, 300 

90, 300 

61, 800

49, 800 

37, 800 

86, 700 

81, 000 

60, 500 

43, 500

6,227, 000

May

Mean

charge 

(secondfeet)

38, 500 

39, 900 

37, 800 

36, 300 

37, 700 

40, 000 

38,200 

38, 200 

37,900 

32, 800

28, 600 

27, 200 

30,600 

33, 400 

35,600

37, 900 

43, 000 

46, 000 

46, 500 

47, 700

47, 300 

45,400 

44, 100 

41, 500 

39, 300 

37, 800 

38, 700 

40, 300 

42, 700 

45, 400 

48, 200

1, 224, 500

Suspended sediment

Mean 

concentration 

(percent)

0.36 

.42 

.27 

.25 

.29

.33 

.32 

.30 

.28 

.28

.26 

.28 

.29 

.20 

.28

!/. 31 

.36 

.36 

.34 

.41 

.48 

.46 

.36 

.30 

.30

.31 

.31 

.32 

.31 

.28 

.28

Tons 

per 

day

374, 000 

452, 000 

276, 000 

245, 000 

295, 000

356, 000 

330, 000 

309, 000 

287, 000 

248, 000

201, 000 

206, 000 

240, 000 

180,000 

269, 000 

317, 000 

418, 000 

447, 000 

427, 000 

528, 000

613, 000 

564, 000 

429, 000 

336, 000 

318,000

316, 000 

324, 000 

348, 000 

357, 000 

343, 000 

364, 000

10,720,000

August

11, 000 

9,960 

9,330 

8,880 

8,120

8,070 

7,730 

7,580 

7,470 

7,490 

8,710 

9,880 

8,980 

8,470 

7,730

7,300 

6,840 

6,250 

6,020 

5,560

5,400 

5,280 

5,220 

5,030 

4,940

5,000 

5,120 

4,840 

4,940 

5,010 

4,640

216,790

0.12 

.13 

.09 

.06 

.06 

.06 

I/. 06 

I/. 07 

I/. 08 

.08

.16 

.17 

.37 

1.02 

.60

.31 

.18 

.13 

.15 

.18

.12 

.05 

.08 

.07 

.10 

.37 

.63 

.22 

I/. 08 

.06 

.03

35, 600 

35,000 

22, 700 

14, 400 

13,200

13,100 

12, 500 

14, 300 

16, 100 

16, 200 

37,600 

45, 300 

2/86, 600 

233, 000 

125, 000

61, 100 

33, 200 

21,900 

24, 400 

27,000

17, 500 

7,130 

11,300 

9,510 

13, 300 

50, 000 

2/88, 400 

2/29, 600 

10, 700 

8,120 

3,760

1,138,000

June

Mean

charge 

(secondfeet)

49, 200 

49, 800 

46, 800 

44, 100 

41,100

40, 400 

41,300 

41,900 

42, 700 

44, 400 

47, 200 

49, 600 

54, 300 

60, 000 

64,000 

67, 400 

67, 900 

69, 700 

72, 800 

80, 300

87, 200 

81, 800 

77, 600 

72, 100 

68, 400

68, 000 

59, 900 

53, 800 

50, 500 

48, 000

1^742, 200

Suspended sediment

Mean 

concentration 

(percent)

0.36 

.30 

'.26 

.27 

.30

.37 

.44 

1/-45 

.46 

.51

.36 

.38 

.40 

.39 

.45

.34 

.33 

.34 

.30 

.28

.26 

.24 

.27 

.26 

.25 

.25 

I/. 25 

I/. 26 

I/. 26 

.26

-

Tons 

per 

day

478, 000 

403,000 

329, 000 

321, 000 

333, 000 

404, 000 

491, 000 

509, 000 

530, 000 

611, 000 

459, 000 

590, 000 

586, 000 

632, 000 

778, 000

619, 000 

605, 000 

640, 000 

590, 000 

607, 000

612, 000 

530, 000 

566, 000 

506, 000 

462, 000

459, 000 

404, 000 

378, 000 

354,000 

337, 000

15, 040, 000

September

4,440 

4,180 

3,900 

3,830 

3,830

3,740 

4,110 

4,520 

4,560 

4,520

4,610 

4,520 

4, 720 

5,220 

5,280

5,630 

6,110 

6,310 

6,330 

6,630 

6,510 

5,680 

5,130 

5,030 

4,930

4,860 

4,880 

4,810 

4,760 

5,500

149, 080

0.03 

.03 

.08 

.02 

.02

.01 

.01 

.02 

.02 

I/. 03 

.04 

.04 

.04 

.06 

.09

.06 

.08 

.09 

.15 

.11 

.07 

.05 

I/. 03 

.02 

.03 

.02 

.01 

.01 

.04 

1.11

-

3,600 

3,390 

8,420 

2,070 

2,070

1,010 

1,110 

2,440 

2,460 

3,660 

4,980 

4,880 

5,100 

8,460 

12, 800

9,120 

13,200 

15,300 

25,600 

19, 700

12,300 

7,670 

4,160 

2,720 

4,000

2,620 

1,320 

1,300 

2/5, 320 

2/167, 000

357,800

Total discharge for year (second-foot-days) 

Total load for year (tons) 

 5, 610,990

 42,360,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ.

LOCATION.--At gaging station at head of Marble Gorge at Lees Ferry, just upstream from Paria River, 

61.5 miles upstream from Little Colorado River, and 79 miles downstream from San Juan River. 

DRAINAGE AREA. 107,900 square miles. 

RECORDS AVAILABLE. Chemical analyses: January to July 1926, October 1926 to September 1927, Octob

October 1947 to September 1949.

Sediment records: October 1928 to December 1933, November 1942 to September 1944, October 1947 t

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,260 parts per million Oct. 11-20; minimum, 275 pa

Total hardness: Maximum, 624 parts per million Oct. 11-20; minimum, 179 parts per million June 2

Sediment loads: Maximum, 2,410,000 tons per day June 21; minimum 6,720 tons per day Sept. 7.

EXTREMES, 1928-30, 1942-45, 1947-49. Dissolved solids: Maximum, 1,410 parts per million Oct. 11-2

Total hardness: Maximum, 720 parts per million Oct. 11-20, 1928; minimum, 132 parts per million 

Sediment loads (1928-33, 1942-44, 1947-49): Maximum, 9,450,000 tons per day, Aug. 7, 1929; minimu

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Albuquerque, N. Hex.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Dec. 1-4, 6-10 

Dec. 21-24, 26-31- 

Jan. 1, 3-4, 7-8, 

10 1949

Feb. 1-5, 7-10 

Feb. 12-15, 17-20-

Mar. 1-4, 6-10 

Mar 5M-S1 

Mean 

discharge 

(secondfeet)

4,987 

4,989 

6,083 

8,169 

6,307 

6,073

5,093 

5,443 

6,315

3,174 

6,981 

6,225

5,145 

5,909 

8,922 

10, 730 

9,807 

is 7nn

pH

7.6 

7.7 

7.8 

7.8 

7.6 

7.6

7.6 

7.7 

7.7

8.1 

8.1 

7.5

7.7 

7.7 

7.7 

7.6 

7.6 

7 fi

Specific 

conductance 

(micromhos at 

25° C )

1,720 

1,800 

1,680 

1,570 

1,580 

1,580

1,550 

1,670 

1,460

1,650 

1,620 

1,430

1,420 

1,460 

1,270 

1,340 

1,360 

1 2nn

Silica 

(SiO,)

13 

12 

12 

13 

12 

15

15 

17 

14

13 

14 

18

15 

14 

15 

15 

14 

id

Iron 

(Fe)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.04 

.02

.02 

.03 

.02

.03 

.04 

.04 

.02 

.02 

ni

Calcium 

(Ca)

145 

146 

136 

133 

126 

124

118 

128 

112

124 

119 

106

104 

106 

96 

108 

110

Qd

Magnesium 

(Mg)

57 

63 

56 

45 

50 

51

49 

52

45

51 

49 

44

45 

46 

37 

36 

40

Sfi

Sodium 

(Na)

172 

180 

168 

157 

157 

155

155 

162 

147

172 

166 

148

146 

159 

138 

139 

142

125

Potassium 

(K)

6.0 

6.4 

5.6 

5.8 

4.4 

4.4

2.4 

3.6 

3.0

4.2 

4.4 

5.0

6.4 

3.8 

6.2 

4.0 

3.2

2 R

Bicarbonate 

(HCO,)

215 

219 

219 

202 

219 

228

227 

242 

226

243 

238 

220

227 

230 

207 

202 

212

91R

Sulfate 

(S04)

593 

603 

536 

513 

489 

473

445 

482 

410

452 

432 

390

381 

393 

358 

387 

421 

SRn

Chloride 

(ci)

123 

135 

129 

106 

119 

121

123 

142 

117

149 

143 

123

127 

132 

100 

103 

87

7fi
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT LEES FERRY, ARIZ.--Continue

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

Apr. 1, 3-10, 1949

July 1-3, 5-9 

Sept. 1-2, 5-10 

Weighted averageMean 

discharge 

( second - 

feet)

11,620 

19, 330 

34, 960 

49, 260 

48, 270 

53, 340

57, 130 

75,910 

89, 760 

52,280 

34, 140 

19, 370

11,840 

10, 300 

6,262 

4,654 

5,524 

5,625

19, 810

pH

7.7 

7.7 

7.8 

7.5 

7.6 

7.6

7.5 

7.6 

7.6 

7.1 

7.5 

7.7

7.7 

7.7 

7.7 

7.7 

7.7 

7.7

--

Specific 

conductance 

(micromhos at 

25° C )

1,200 

1,050 

666 

523 

518 

499

507 

517 

444 

523 

596 

763

854 

1,230 

1,300 

1,580 

. 1, 650 

1,620

764

Silica 

(SiO,)

15 

15 

15 

14 

14 

17

13 

15 

11 

14 

15 

15

16 

14 

15 

11 

12 

13

14

Iron 

(Fe)

0.02 

.02 

.02 

.06 

.06 

.04

.07 

.05 

.04 

.04 

.04 

.04

.05 

.07 

.04 

.01 

.06 

.01

0.04

Calcium 

(Ca)

94 

84 

58 

57 

53 

51

54 

55 

52 

61 

61 

74

77 

113 

112 

128 

134 

132

71

Magnesium 

(Mg)

35 

33 

20 

15 

15 

15

15 

15 

12 

14 

17 

22

24 

34 

38 

48 

51 

51

23

Sodium 

(Na)

123 

104 

54 

30 

33 

32

30 

32 

22 

30 

42 

59

68 

113 

125 

160 

163 

157

62

Potassium 

(K)

3.0 

3.4 

3.4 

3.2 

3.0 

2.4

2. 8 

2.8 

2.8 

2.0 

1.4 

2 2

1.4 

2. 8 

2.4 

6.8 

6.6 

5.8

3.0

Bicarbonate 

(HCO,)

196 

195 

166 

179 

165 

161

162 

160 

146 

161 

154 

173

170 

193 

202 

201 

212 

207

175

Sulfate 

(S04)

360 

295 

162 

95 

102 

98

102 

111 

89 

113 

145 

198

221 

390 

407 

506 

539 

526

195

Chloride 

(Cl)

76 

67 

35 

18 

18 

16

18 

16 

13 

16 

22 

38

49 

74 

83 

116 

116 

114

41

I/Reported boron concentration is less than figure indicated.
Temperature (°F) of water, July to September 

Day

2

18

91

25

97

29

31

October November December January February March April 
COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM--Continued

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 1948 to September 1949

Day

2

n

13

20

21

23

24

25

27

Total -

2

n

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

6,050 

5,260 

5,120 

4,820 

4,860 

4,970 

4,740 

4,690 

4,720 

4,640

4,520 

4,740 

5,020 

5,320 

5,430

5,210 

4,990 

4,920 

4,820 

4,920

4,920 

4,970 

5,020 

5,120 

5,290 

5,350 

5,230 

5,210 

5,460 

8,540 

11,800

166, 670

Suspended sediment

Mean 

concentration 

(percent)

0.83 

1.12 

.81 

.59 

.45

.35 

.25 

.25 

.22 

.16 

.14 

.23 

.17 

.19 

.18

.16 

.18 

.16 

.17 

.20

.22 

.15 

.15 

.19 

.20

.23 

.22 

.21 

.18 

.62 

1.49

Tons 

per 

day

136, 000 

159, 000 

112, 000 

76,800 

59, 000 

47, 000 

32, 000 

31,700 

28, 000 

20, 000 

17, 100 

29, 400 

23,000 

27,300 

26,400

22, 500 

24, 300 

21,300 

22,100 

26,600

29,200 

20, 100 

20,300 

26,300 

28,600 

33,200 

31, 100 

29, 500 

26, 500 

143, 000 

475, 000

1,804,000

January

4,970 

4,740 

4,290 

3,970 

3,280

2,730 

2,150 

1,510 

1,530 

2,570

3,530 

3,680 

4,600 

8,480 

9,390 

9,520 

8,240 

7,840 

7,420 

7,110 

6,700 

5,990 

5,400 

5,260 

5,600

6,050 

6,440 

7,040 

7,110 

6,980 

5,900

170, 020

0.21

II- 22 

.22 

.19 

II- 16

I/. H 

.10 

.03 

I/. 05 

.18

.18 

.13 

.17 

.35 

.71 

.88 

.81 

.60 

.43 

.31 

.24 

.22 

.19 

22 [21

.26 

.29 

.29 

.35 

.21 

.28

"

28,200 

28,200 

25,500 

20, 400 

14,200 

10,300 

5,800 

1,220 

2,050 

12, 500

17,200 

12,900 

21,100 

80, 100 

180, 000 

226,000 

180, 000 

127, 000 

86, 100 

59, 500

43, 400 

35,600 

27,700 

31,200 

31,800 

42, 400 

50, 400 

55, 100 

67, 200 

39, 600 

44, 600

1,607,000

November

Mean 

discharge 

(secondfeet)

11,400 

13,000 

9,800 

8,210 

6,980 

6,700 

6,670 

6,440 

6,180 

6,310

6,150 

6,120 

6,340 

6,280 

6,310

6,210 

6,340 

6,570 

6,470 

6,280

5,960 

5,750 

5,900 

6,050 

5,960 

5? 900 

6,440 

6,410 

6,120 

6,240

205, 490

Suspended sediment

Mean 

concentration 

(percent)

1.58 

1.90 

1.84 

1.42 

1.16 

. 88 

.66 

.49 

.40 

.34

.29 

.26 

.31 

.27 

.21

.22 

.19 

.32 

.19 

.22

.17 

.17 

.20 

.20 

.20 

.18 

.19 

.19 

.16 

.18

Tons 

per 

day

486, 000 

667, 000 

487, 000 

315, 000 

219, 000

159, 000 

119, 000 

85, 200 

66, 700 

57, 900 

48, 200 

43, 000 

53, 100 

45, 800 

35, 800 

»6,900 

32, 500 

56, 800 

33, 200 

37,300

27, 400 

26, 400 

31,900 

32, 700 

32,200

28, 700 

33, 000 

32, 900 

26, 400 

30, 300

3, 386, 000

February

5,210 

5,520 

5,370 

5,100 

5,050

4,840 

4,860 

4,720 

5,320 

5,460

6,240 

5,930 

5,690 

5,660 

5,580 

5,810 

5,660 

6,120 

6,280 

6,120 

6,500 

6,310 

6,670 

7,740 

9,360

10, 800 

12, 500 

11,500

181,920

0.22 

.18 

.25 

.24 

.11 

I/. 12 

.14 

.13 

.18 

.14

.18 

.16 

.16 

.18 

.29 

I/. 25 

.19 

.23 

.33 

.40 

.18 

.18 

.20 

.48 

.91

1.05 

1.42 

1.35

30,900 

26,800 

36, 200 

33, 000 

15, 000

15, 700 

18, 400 

16, 600 

25, 900 

20, 600

30,300 

25, 600 

24, 600 

27, 500 

43, 700 

39,200 

29, 000 

38, 000 

56,000 

66, 100 

31, 600 

30, 700 

36, 000 

100, 000 

230, 000

306, 000 

479, 000 

419, 000

2,251,000

December

Mean

charge 

(secondfeet)

6,180 

5,900 

5,100 

4,820 

5,100 

4,860 

4,660 

4,760 

4,760 

4,790

4,860 

4,720 

4,520 

4,660 

4,990

5,630 

5,960 

6,150 

6,500 

6,440

6,310 

6,440 

6,470 

6,870 

7,490 

7,180 

6,470 

5,780 

5,720 

5,550 

5,180

174,820

Suspended sediment

Mean 

concentration 

(percent)

0.19 

.14 

.12 

.11 

I/. 13

.15 

.18 

.16 

.15 

.15

.14 

.10 

.11 

.18 

22

.25 

.20 

.17 

.21 

.22

.20 

.18 

.18 

.24 

I/. 24 

.25 

.25 

.19 

.20 

.20 

.20

Tons 

per 

day

31,700 

22,300 

16, 500 

14,300 

17,900 

19, 700 

22,600 

20, 600 

19, 300 

19, 400 

18, 400 

12, 700 

13, 400 

22, 600 

29, 600 

38, 000 

32, 200 

28,200 

36, 900 

38,300

34, 100 

31,300 

31,400 

44,500 

48,500

48, 500 

43,700 

29, 700 

30,900 

30, 000 

28, 000

875,200

March

11, 000 

11, 000 

10, 600 

10, 500 

10,200

9,930 

10,300 

10, 600 

11,700 

11, 500

11, 400 

10, 400 

9,280 

8,930 

9,160 

9,120 

9,080 

9,400 

10, 300 

11, 000

12, 700 

16, 700 

16, 700 

14, 600 

13,800

13,400 

13,200 

12, 800 

12, 500 

12,200 

12, 100

356, 100

1.12 

.78 

.66 

.59 

I/. 50 

.47 

.61 

.55 

.66 

.66

.64 

.51 

.53 

.47 

.51 

.43 

.39 

.48 

.58 

.50 

.55 

.76 

.77 

.62 

.64

.65 

.57 

.51 

.51 

.41 

.42

333, 000 

232, 000 

189, 000 

167, 000 

138, 000

126, 000 

170, 000 

157, 000 

208,000 

205, 000

197, 000 

143, 000 

133, 000 

113, 000 

126, 000 

106, 000 

95, 600 

122, 000 

161, 000 

148, 000

189, 000 

343, 000 

347, 000 

244, 000 

238, 000

235, 000 

203,000 

176, 000 

172, 000 

135, 000 

137, 000

5, 689, 000

I/Estimated or interpolated.
COLORADO RIVER MAIN STEM 399

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

13

1 ft

1ft

21

22

no

ne

Oft

97

no

30

31 

Totalg

13

10

19

on

21

22

23

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

12, 200 

12, 400 

13,000 

12, 400 

11,400

10, 500 

10, 300 

10, 900 

11,300 

11, 800 

13, 300 

14, 500 

14, 900 

15,800 

20, 90Q

21, 500 

22, 100 

22, 300 

22, 900 

25,100 

26, 200 

25, 600 

25,900 

28, 000 

31, 500

35,700 

40, 100 

43, 700 

46, 000 

46, 900

659, 100

Suspended sediment

Mean 

concentration 

(percent)

0.44 

.45 

.48 

.58 

.60 

.47 

.39 

.42 

.49 

.56 

.65 

.69 

.53 

.47 

.68

.71 

.72 

.68 

.72 

.79 

.72 

.63 

.62 

.55 

.62

.77 

.71 

.82 

. 83 

.76

~

Tons 

per 

day

145, 000 

151,000 

168, 000 

194, 000 

185, 000

133, 000 

108, 000 

124, 000 

149, 000 

178, 000

233, 000 

270, 000 

213,000 

200, 000 

384, 000

412, 000 

430, 000 

409, 000 

445, 000 

535,000 

509, 000 

435,000 

434, 000 

416, 000 

527, 000

742, 000 

769, 000 

968, 000 

L, 030, 000 

962, 000

11,86QOOO

July

62, 100 

57, 700 

53, 700 

52, 300 

51, 000

52, 000 

51, 500 

49, 800 

46, 900 

45, 800

44, 000 

43, 200 

42, 100 

40, 700 

35,800 

32, 600 

29, 400 

26, 700 

24, 400 

22, 500

21, 100 

20, 100 

19, 600 

19, 400 

18, 900 

19, 400 

18, 800 

20, 800 

18, 700 

18, 900 

17,400

1,077,300

0.28 

. 28 

.36

I/. 35 

.28

.35 

.66 

.51 

.60 

I/. 56 

.52 

.55 

.49 

.46 

.44 

.41 

.29 

.34 

.24 

.18

.17 

.15 

.14 

.14 

.18 

.19 

.25 

.54 

.44 

.58 

.57

--

469, 000 

436, 000 

522, 000 

494, 000 

386, 000

491, 000 

918, 000 

686, 000 

760, 000 

692, 000

618, 000 

642, 000 

557, 000 

505, 000 

425,000 

361, 000 

230, 000 

245, 000 

158,000 

109, 000

96, 800 

81, 400 

74, 100 

73,300 

91, 900 

99,500 

127, 000 

303, 000 

222, 000 

296, 000 

268, 000

1 1,441} 000

Total discharge for year (second-foot-day 

Total load for year (tons) -- 

May

Mean

charge 

(secondfeet)

46, 900 

50, 800 

51, 500 

48, 600 

47, 700

50, 100 

51, 400 

49, 300 

49, 200 

47, 100

42, 100 

38, 800 

39, 800 

44, 600 

46, 800

47, 800 

49, 800 

, 55,700 

59, 100 

58, 200 

57, 600 

56, 900 

56, 500 

53, 500 

50, 000

47, 900 

47, 600 

48, 800 

51, 900 

56, 200 

59, 800

1, 562, 000

Suspended sediment

Mean 

concentration 

(percent)

0.72 

.71 

.66 

.63 

.58

.58 

.54 

.47 

.57 

.52

.44 

.46 

.54 

.62 

.50

.52 

.47 

.61 

.52 

.55 

.49 

.46 

.52 

.46 

.50

.51 

.44 

.45 

.38 

.41 

.45

Tons 

per 

day

912, 000 

974, 000 

918, 000 

827, 000 

747, 000

785, 000 

749, 000 

626, 000 

757, 000 

661, 000

500, 000 

482, 000 

580, 000 

747, 000 

632, 000

671,000 

632, 000 

917, 000 

830, 000 

864, 000 

762, 000 

707, 000 

793, 000 

664, 000 

675, 000

660, 000 

565, 000 

593, 000 

532, 000 

622, 000 

727, 000

22,110,000

August

15,700 

14, 100 

13, 000 

11,800 

10, 700 

10, 400 

9,400 

10, 300 

11,800 

11,200

13,000 

11, 700 

12, 400 

12,300 

10, 700 

9,930 

9,120 

8,510 

7,950 

7,420

7,080 

6,870 

6,600 

6,570 

6,980 

5,990 

5,840 

5,870 

5,870 

5,750 

5,460

290,310

0.28 

.22 

.18 

.15 

.15

.15 

.12 

.30 

.37 

.44

1.16 

1.16 

1.04 

.62 

.47 

.66 

.78 

.81 

.52 

.30

.26 

.18 

.22 

.25 

.26 

.38 

.14 

.15 

.13 

.22 

.37

--

119,000 

83, 800 

63,200 

47, 800 

43, 300 

42, 100 

30,500 

83, 400 

118,000 

133, 000

407, 000 

366, 000 

348, 000 

206, 000 

136, 000 

177, 000 

192, 000 

186, 000 

112,000 

60,100

49, 700 

33,400 

39, 200 

44,300 

49,000 

61,500 

22, 100 

23, 800 

20,600 

34, 200 

54,500

3,386,000

June

Mean

charge 

(secondfeet)

61, 900 

62, 500 

61, 600 

59, 800 

55,400

53, 600 

53, 600 

54, 200 

54, 500 

54, 200

55, 700 

57, 900 

63, 300 

69, 100 

74, 100

79, 400 

81, 000 

84, 100 

93, 500 

101, 000

111,400 

115,300 

104, 200 

95,200 

89, 700

87, 300 

84, 500 

75,200 

69, 600 

65, 200

2,228,000

Suspended sediment

Mean 

concentration 

(percent)

0.42 

.50 

.43 

.38 

.45

.44

.50 

.45 

.48 

.58

.44 

.47 

.52 

.46 

.53

.64 

.54 

.50 

.66 

.79 

.80 

.61 

.64 

.46 

.45

.49 

.50 

.37 

.31 

.31

Tons 

per 

day

702, 000 

844, 000 

715, 000 

614, 000 

673, 000 

637,000 

724, 000 

659,000 

706, 000 

849, 000

662, 000 

735, 000 

889, 000 

858, 000 

1, 060, 000

1, 370, 000 

1, 180, 000 

1, 140, 000 

1, 670, 000 

2,150,000 

2, 410, 000 

1, 900, 000 

1, 800, 000 

1, 180, 000 

1, 090, 000

1,150,000 

1, 140, 000 

751, 000 

583,000 

546, 000

31,390,000

September

5,520 

5,290 

5,020 

4,820 

4,490

4,270 

4,150 

4,170 

4,170 

4,640

5,520 

5,520 

4,620 

5,490 

5,230 

5,150 

5,350 

5,780 

6,210 

6,370

6,370 

6,280 

6,310 

6,120 

5,550 

5,210 

5,100 

5,070 

5,120 

5,120

158,030

0.19 

.18

I/. 14

!/. 11

.07 

.07 

.06 

.07 

.06 

.08

.29 

.43 

.28 

.36 

.46 

.32 

.32 

.37 

.39 

.33

.31 

.26 

.24 

.20 

.16 

.14 

.12 

.11 

.17 

.28

S) ............................ ................ ......

.................................................... 9

28,300 

25, 700 

19, 000 

14,300 

8,490

8,070 

6,720 

7,880 

6,760 

10, 000

43, 200 

64, 100 

34, 900 

53,400 

65, 000 

44,500 

46, 200 

57, 700 

65, 400 

56, 800

53,300 

44, 100 

40, 900 

33, 000 

24, 000 

19, 700 

16, 500 

15, 100 

23, 500 

38, 700

975,200

7, 229, 760 

6, 770, 000

I/Estimated or interpolated.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ. Cont

Particle-size analyses of suspended sediment, July to Sept

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

W, in distilled water; C, chemically dispersed; M, mechanic

Date

July 21, 1949 

Time

1:05 p. m. 

1:30 p.m. 

10:15 a. m.

9:15 a.m. 

8:50 a.m. 

8:45 a. m. 

8:30 a. m. 

8:30 a.m. 

10:30 a.m. 

8:30 a. m. 

12:15 p.m. 

8:15 a.m.

9:00 a. m. 

8:30 a.m. 

8:40 a.m.

9:00 a. m. 

9:10 a. m.

Mean 

discharge 

(secondfeet)

21, 100 

18,900 

20,800

15,700 

11,800 

10, 300 

13,000 

10, 700 

8,510 

6,870 

6,980 

5,870

4,490 

5,520 

5,230 

6,210 

6,280 

5,210

Suspended s

Mean daily 

concentration 

(percent)

0.17 

.18 

.54

.28 

.15 

.30 

1.16 

.47 

.81 

.18 

.26 

.13

.07 

.43 

.46 

.39 

.26 

. 14

Weight of 

material 

in tube 

(grams)

0.3117 

.3875 

.5737

.2868 

.3506 

.2618 

.7368 

.4177 

.4175 

.3969 

.2944 

.3126

1.0604 

.4572 

.2570 

.5134 

.2853 

.2390

Percent fi

0.002

18 

22 

27

26 

19 

19 

47 

29 

30 

24 

25 

19

32 

17 

13 

37 

19 

12

0.004

27 

34 

38

37 

28 

28 

56 

44 

48 

36 

37 

32

43 

30 

32 

49 

29 

20

0.008

35 

43 

56

48 

36 

39 

71 

59 

66 

48 

48 

45

53 

45 

51 

61 

40 

29

0.016

44 

55 

70

61 

46 

48 

81 

71 

82 

59 

59 

57

66 

59 

69 

67 

54 

40
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, 

Coconino County, and 267 miles upstream from Hoover Dam. 

DRAINAGE AREA. 137,800 square miles. 

RECORDS AVAILABLE. Chemical analyses: August 1925 to November 1942, September 1943 to September 1949

Water temperatures: October 1936 to October 1942, September 1943 *o September 1949.

Sediment records: October 1925 to November 1942, September 1943 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,380 parts per million Oct. 11-20; minimum, 334 part

Total hardness: Maximum, 645 parts per million Oct. 1-10; minimum, 204 parts per million May 21-31

Water temperatures: Maximum, 86° P. July 16; minimum, 33 F. Jan. 5-6, Feb. 4.

Sediment load's: Maximum, 3,050,000 tons per day Aug. 10; minimum, 2,160 tons per day Jan. 9. 

EXTREMES, 1925-49. Dissolved solids: Maximum, 1,890 parts per million Sept. 21-30, 1934; minimum, 2

Total hardness: Maximum, 792 parts per million Sept. 1-10, 1940; minimum, 127 parts per million Ju

Water temperatures (1936-49): Maximum, 88° F. July 17, 1944; minimum, freezing point on several da

Sediment loads: Maximum, 27,600,000 tons per day Sept. 13, 1927: minimum, 863 tons per day Dec. 27

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pa

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to Sep

Date of collection

Dec. 21, 23-25,

Mar. 11-13, 22-26,

2R-S1 

Mean 

discharge 

(secondfeet)

5,428 

5,095 

5,843 

8,852 

6,593 

6,458

5,507 

5,562

6,484 

3,987 

6,820 

6,819

5,453 

6,054 

9,204 

11,650

14 fifin

Temperature 

<°F)

PH

7.5 

7.6 

7.7 

7.7 

7.7 

7.8

7.8 

7.7

7.7 

8.1 

8.0 

7.9

8.0 

8.0 

8.0 

8.0

7 ft

Specific 

conductance 

(micromhos at 

25° C)

1,920 

1,970 

1,880 

1,670 

1,740 

1,720

1,350 

1,660

1,340 

1,760 

1,700 

1,570

1,600 

1,580 

1,450 

1,400

1.SSO

Silica 

(Si08)

16 

14 

13 

15 

14 

15

10 

13

11 

14 

14 

13

13 

13 

14 

12

15

Iron 

(Fe)

0.13 

.02 

.03 

.14 

.02 

.02

.02 

.04

.02 

.02 

.01 

.01

.03 

.02 

.03 

.02

.04

Calcium 

(Ca)

158 

156 

144 

142 

133 

128

104 

119

105 

128 

138 

116

114 

115 

105 

114

109

Magnesium 

(Mg)

61 

20 

58 

45 

52 

54

40 

49

38 

52 

49

44

45 

46 

39 

33

34

Sodium 

(Na)

204 

211 

200 

182 

188 

184

138 

144

139 

187 

172 

176

165 

158 

165 

146

133

Potassium 

(K)

9.8 

11 

8.8 

8.2 

11 

9.8

7.4 

8.0

8.0 

9.4 

10 

9.8

11 

9.6 

9.0

7.4

fi 0

Bicarbonate 

(HCO.)

283 

261 

252 

257 

251 

253

211 

234

206 

264 

272 

271

255 

249 

236 

232

258

Sulfate 

(S04)

592 

596 

558 

514 

506 

494

364 

361

363 

431 

454 

395

356 

370 

374 

369

342

Chloride 

(Cl)

175 

188 

175 

135 

162 

160

125

175

125 

200 

162 

160

182 

168 

145 

118

98
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continu

Chemical analyses, in parts per million, water year October 1948 to Septembe

Date of collection

Apr. 1-10, 1949 -----

May3, 6, 9, 11-14,

Mav 21 31

Weighted average 

Mean 

discharge 

(secondfeet)

12,440 

20,370 

34,580

46,290 

51,050

55,340 

72,610 

88,980 

50,920 

34,350 

20,000

13,420 

11,250 

6,541 

4,935 

6,122 

6,099

19,530

Temperature 

(°F)

PH

8.1 

8.1 

8.1

8.1 

8.1

7.8 

7.8 

7.8 

7.6 

7.7 

7.7

7.6 

7.7 

7.7 

7.6 

7.6 

7.6

--

Specific 

conductance 

(micromhos at 

25° C)

1,300 

1,160 

840

594 

549

568 

622 

541 

581 

710 

840

1,050 

1,360 

1,450 

1,780 

1,750 

1,840

880

Silica 

(Si02)

15 

15 

15

14 

13

17 

17 

13 

15 

16 

16

16 

17 

15 

12 

15 

13

15

Iron 

(Fe)

0.43 

.02 

.05

.15 

.00

.19 

.36 

.41 

.43 

.34 

.15

.17 

.11 

.13 

.07 

.10 

.04

0.20

Calcium 

(Ca)

111 

100 

82

63 

57

58 

74 

67 

67 

76 

79

97 

122 

130 

142 

140 

146

84

Magnesium 

(Mg)

36 

30 

23

16 

15

16 

17 

13 

13 

17 

18

28 

34 

39 

50 

45 

54

24

Sodium 

(Na)

130 

119 

69

40 

40

39 

31 

29 

37 

51 

74

90 

131 

136 

184 

193 

194

75

Potassium 

(K)

7.2 

5.6 

5.2

3.5 

1.8

2.0 

2.6 

2.0 

3.0 

3.4 

3.0

5.2 

4.4 

4.2 

6.4 

6.0 

4.6

4.1

Bicarbonate 

(HCO,)

274 

268 

242

199 

179

204 

214 

206 

195 

212 

210

248 

258 

264 

256 

268 

248

220

Sulfate 

(S04)

336 

289 

180

108 

109

97 

115 

92 

107 

152 

181

237 

360 

389 

498 

494 

552

201

Chloride 

(Cl)

100 

82 

47

26 

22

21 

21 

14 

23 

30 

51

77 

104 

115 

168 

159 

164

57
Temperature (° F ) of water, water year October 194

Day

1 

«

19

91

nn

23 ..... 

no

29

October

68 

68 

68 

68 

66

65 

65 

65 

63 

64

63 

63 

64 

64 

64

64

62 

61 

61

60 

57 

60 

60 

59

59 

58 

58 

58 

57 

56

62

November

55 

55 

55 

55

51 

51 

48 

47 

47

46 

46 

45 

45 

45

45 

45 

45 

45 

44

44 

44 

42 

41

44 

42 

41 

39

46

December

39 

37 

37 

40 

38

39

39 

37 

37

38 

41 

41 

41 

41

41 

42 

42 

41 

41

41 

39 

39 

38 

38

37 

36 

37 

37

39

January

37 

36 

35 

34 

33

33 

34 

35 

35 

38

38 

39

35 

34

34 

34 

36 

34 

36

37 

37 

37 

37 

37

37 

37 

36 

34 

34

36

February

33

35 

35 

34

36 

35 

34 

34

35 

35 

36 

36

37

38 

39

46 

44

44 

45

"

March

45 

45 

45

49 

48

47 

47

48 

49 

51

53 

52 

50 

49

50

52 

50 

50 

51

"

A
404 COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM--Continued

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued

Suspended sediment, water year October 1948 to September 1949

Day

3

12

14

20

23

24

9ft

27

29

30

Total1 ...

3

12

15 

1ft

19

21 

22 

23 

24 

25 

26 ------ 

27 

28 

29 ----- - 

30 ...... 

31 ------

TotalOctober

Mean 

discharge 

(secondfeet)

6,460 

6,670 

5,670 

5,450 

5,060

5,110 

5,180 

4,930 

4,850 

4,900

4,830 

4,690 

4,930 

5,240 

5,460 

5,560 

5,330 

5,120 

4,940 

4,850

5,010 

5,120 

5,190 

5,240 

5,370

5,540 

5,500 

5,410 

5,490 

6,000 

10, 400

169, 500

Suspended sediment

Mean 

concentration 

(percent)

0.17 

.82 

1.02 

.93 

1.02

.82 

.65 

.43 

.29 

.21

.19 

.13 

.11 

.09 

.09 

.09 

.08 

.07 

.06 

.08

.07 

.07 

.06 

.06 

.06 

.16 

.19 

.13 

.13 

.12 

.42

Tons 

per 

day

29, 700 

148, 000 

156, 000 

137, 000 

139, 000

113,000 

90, 900 

57,200 

38, 000 

27, 800

24,800 

16,500 

14,600 

12, 700 

13,300

13, 500 

11,500 

9,680 

8,000 

10, 500 

9,470 

9,680 

8,410 

8,490 

8,700 

23, 900 

28, 200 

19, 000 

19, 300 

19, 400 

118, 000

1,344,000

January

6,070 

5,690 

5,290 

4,890 

4,380

3,750 

3, 200 

2,600 

2,000 

2,000

2,800 

3,970 

3,940 

5,010 

8,910

10, 100 

10,100 

8,440 

7,540 

7,390

7,450 

7,100 

6,620 

6,180 

5,980 

6,210 

6,580 

7,000 

7,440 

7,450 

7,000

183, 080

0.20 

.20 

.17 

.04 

.03 

.04 

.04 

.04 

.04 

.63

.65 

.65 

.60 

.65 

.65 

.61 

.31 

.28 

.31 

.30

.30 

.34 

.42 

.31 

.15 

.15 

.15 

.14 

.07 

.07 

.06

32, 800 

30,700 

24, 300 

5,280 

3,550

4,050 

3,460 

2,810 

2,160 

34, 000

49, 100 

69, 600 

63, 800 

87, 900 

156, 000

166, 000 

84,500 

63, 800 

63, 100 

59, 900

60, 300 

65,200 

75, 100 

51, 700 

24, 200

25,100 

26, 600 

26, 500 

14, 100 

14, 100 

11,300

1,401,000

November

Mean

charge 

(secondfeet)

10, 700 

12, 900 

12, 400 

9,540 

8,300

7,390 

6,980 

6,920 

6,720 

6,670 

6,660 

6,630 

6,600 

6,550 

6,480 

6,520 

6,410 

6,550 

6,830 

6,700

6,730 

6,380 

6,240 

6,490 

6,600

6,440 

6,280 

6,600 

6,510 

6,310

219,030

Suspended sediment

Mean 

concentration 

(percent)

0.51 

.70 

.66 

.39 

.29

.19 

.15 

.14 

.13 

.12

.12 

.12 

.11 

.11 

.11

.11 

.12 

.11 

.12 

.12

.12 

.11 

.10 

.10 

.12

.11 

.11 

.10 

.11 

.11

Tons 

per 

day

147, 000 

244, 000 

221,000 

100, 000 

65, 000

37,900 

28,300 

26,200 

23,600 

21,600

21,600 

21,500 

19,600 

19, 500 

19,200 

19,400 

20, 800 

19, 500 

22, 100 

21,700 

21,800 

18, 900 

16, 800 

17, 500 

21,400 

19, 100 

18,700 

17, 800 

19,300 

18,700

1,310,000

February

6,350 

5,710 

5,820 

5,670 

5,380 

5,200 

4,790 

4,880 

5,180 

5,550

5,530 

5,770 

5,840 

5,710 

5,850 

5,970 

6,090 

6,230 

6,670 

6,880

6,740 

6,760 

6,650 

7,120 

8,360

11,200 

12,900 

13,900

188, 700

1/0.06 

I/- 06 

1/.06 

.06 

.06 

.04 

.04 

.05 

.04 

.04

.05 

.06 

.04 

.05 

.04 

.04 

.04 

.04 

.05 

.06

.06 

.06 

.07 

.07 

.17

.89 

1.34 

1.42

10, 300 

9,250 

9,430 

9,200 

8,710 

5,620 

5,170 

6,590 

5,590 

5,990

7,450 

9,350 

6,300 

7,710 

6,320

6,450 

6,580 

6,730 

9,000 

11, 100

10, 900 

11,000 

12,600 

13, 500 

38,400 

269, 000 

467, 000 

533, 000

1,508,000

December

Mean

charge 

(secondfeet)

6,480 

6,450 

6,040 

5,380 

5,110

5,330 

5,070 

4,970 

5,100 

5,140

5,150 

5,190 

4,890 

4,750 

4,860 

5,240 

5,980 

6,280 

6,490 

6,790 

6,690 

6,530 

6,670 

6,660 

7,080

7,630 

7,130 

6,670 

6,080 

6,010 

6,010

183, 850

Suspended sediment

Mean 

concentration 

(percent)

0.19 

.19 

.15 

.11 

.09

.10 

.09 

.07 

.06 

.05 

.08 

.06 

.07 

.02 

.05

.05 

.06 

.05 

.05 

.05

.03 

.03 

.06 

.06 

.13

.11 

.11 

.06 

.07 

.06 

.06

Tons 

per 

day

33,200 

33, 100 

24, 500 

16,000 

12, 400

14, 400 

12, 300 

9,390 

8,260 

6,940

11, 100 

8,410 

9,240 

2,560 

6,560 

7,070 

9,690 

8,480 

8,760 

9,150

5,420 

5,290 

10,800 

10, 800 

24,900

22, 700 

21,200 

10, 800 

11, 500 

9,730 

9,730

394. 400

March

12, 300 

11,900 

11, 700 

11,300 

11, 100

10, 700 

10, 700 

11, 300 

12, 100 

13, 400 

13, 600 

12, 700 

11, 500 

10, 700 

10, 800

11, 000 

10, 800 

11,300 

12, 200 

13, 500 

14, 200 

17, 300 

19, 200 

11,000 

15,900 

14,800 

14,300 

13, 700 

13, 500 

12, 900 

12, 800

401, 200

1.61 

1.55 

1.18 

.85 

.67 

.57 

.67 

.83 

.77 

1.05

1.26 

.89 

.71

.58 

I/. 50

!/. 55 

I/. 55 

I/. 60 

I/. 75 

I/. 85

!/. 90 

1.00 

1.07 

.88 

.70

.73 

.64 

.54 

.42 

.38 

.34

535, 000 

498, 000 

373, 000 

259,000 

201,000

165,000 

194,000 

253,000 

252, 000 

380, 000

463, 000 

305, 000 

220, 000 

168, 000 

146, 000 

163, 000 

160, 000 

183,000 

247,000 

310,000 

345, 000 

467, 000 

555, 000 

428, 000 

301, 000

292, 000 

247, 000 

200,000 

153,000 

132,000 

118,000

8,713,000

I/Estimated or interpolated.
COLORADO RIVER MAIN STEM 405

COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

g

in

20

24 -

29

31 

Totalg

15 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

12, 900 

13, 500 

13, 500 

14, 100 

12, 700

11, 500 

10, 800 

10, 900 

11,600 

12, 900

13,900 

16,300 

16,000 

17,000 

19, 500

23, 800 

23,800 

24, 100 

24,200 

25, 100 

26, 800 

27, 200 

26, 600 

27, 500 

30,000

34, 600 

39, 100 

42, 600 

45,000 

46, 400

673, 900

Suspended sediment

Mean 

concentration 

(percent)

0.41 

.41 

.40 

.41 

.49

.45 

.43 

.40 

.36 

.42

.59 

.83 

.76 

.76 

.86 

.94 

.94 

.79 

.81 

.79

.80 

.80 

.73 

.72 

.86

1.00 

1.12 

1.23 

1.24 

1.09

Tons 

per 

day

143, 000 

149, 000 

146, 000 

156,000 

168, 000

140, 000 

125, 000 

118, 000 

113, 000 

146, 000 

221,000 

365, 000 

328, 000 

349, 000 

453, 000 

604, 000 

604, 000 

514, 000 

529, 000 

535, 000

579, 000 

588, 000 

524,000 

535, 000 

697, 000

934, 000 

1,180,000 

1,410*000 

1,510,000 

1,370,000

4230,000

July

61,000 

57, 400 

52, 900 

50, 800 

49, 000

49, 300 

49, 800 

48, 400 

46, 100 

44, 500 

43,100 

41, 600 

41, 000 

40, 500 

36,200

33, 400 

30, 500 

27, 800 

25, 700 

23, 700 

22, 100 

21,000 

20,000 

19, 700 

20,000 

20, 400 

19, 600 

20, 300 

20, 000 

18, 600 

18,300

I, 072, 700

0.41 

.38 

.28 

.38 

.28

.26 

I/- 36 

.46 

.44 

.46 

.50 

.51 

.54 

.40 

.46. 

.33 

.32 

.24 

.31 

.21

.27 

.13 

.11 

.16 

.39

.58 

.55 

.47 

.45 

.51 

.50

675, 000 

589, 000 

400, 000 

521, 000 

370, 000

346, 000 

484, 000 

601, 000 

548, 000 

553, 000 

582, 000 

573, 000 

598, 000 

437, 000 

450, 000 

298, 000 

264, 000 

180, 000 

215,000 

134, 000

161, 000 

73,700 

59,400 

85,100 

211,000

319,000 

291, 000 

258,000 

243, 000 

256,000 

247, 000

J,02QOOO

May

Mean

charge 

(secondfeet)

45, 600 

47, 900 

50, 200 

48,700 

45,900

47, 100 

49,200 

48, 200 

45,900 

45,600

42,200 

38, 100 

36,900 

40, 600 

43, 600 

45, 600 

46, 000 

50, 800 

56, 000 

56, 100 

55, 900 

54, 800 

53,700 

52, 500 

48,900

46, 500 

45, 200 

46, 500 

48, 600 

52, 500 

56, 400

1,491,700

Suspended sediment

Mean 

concentration 

(percent)

1.04 

.94 

1.02 

I/- 83 

.70 

.83 

!/. 81 

I/. 69 

.69 

.69 

.62 

.59 

.44 

.53 

I/. 60 

.68 

.62 

.95 

.77 

.77 

.81 

I/. 77 

I/. 71 

.67 

.63

.50 

.47 

.57 

.48 

.54 

.55

Tons 

per 

day

1,280,000 

1,220,000 

1,380,000 

1, 090, 000 

868, 000

1, 060, 000 

1, 080, 000 

898, 000 

855, 000 

850, 000

706, 000 

607, 000 

438, 000 

581, 000 

706, 000 

837, 000 

770, 000 

1, 300, 000 

1, 160, 000 

1, 170, 000

1,220,000 

1, 140, 000 

1, 030, 000 

950, 000 

832, 000

628, 000 

574,000 

716, 000 

630,000 

765, 000 

838, 000

! 8, 180, 000

August

16, 800 

15,200 

13,900 

12, 800 

11,700

11,200 

10, 700 

10,000 

11,900 

20, 000

15,600 

14,300 

12, 300 

12, 800 

11,900

10,600 

9,760 

8,930 

8,420 

7,880

7,360 

7,110 

7,000 

6,770 

6,770 

7,100 

6,190 

5,990 

5,950 

5,920 

5,790

318, 640

0.46 

.37 

!/. 27 

.18 

.12

.28 

.51 

.29 

.29 

5.65

3.10 

1.70 

1.86 

1. 28 

7.00 

.56 

.43 

.55 

.56 

.65

.44 

.31 

.20 

.14 

.13

.14 

.29 

.35 

.24 

.09 

.09

209,000 

152,000 

101, 000 

62, 200 

37,900

84,700 

147, 000 

78,300 

93,200 

3,050, 000

1,310,000 

656,000 

618, 000 

442, 000 

321, 000

160, 000 

113,000 

133, 000 

127, 000 

138, 000

87, 400 

59, 500 

37,800 

25,600 

23, 800 

26,800 

48, 500 

56,600 

38, 500 

14,400 

14, 100

8,466,000

June

Mean

discharge 

(secondfeet)

59, 100 

60,400 

60, 200 

58, 700 

55, 600

52,000 

51, 700 

51, 700 

52,000 

52, 000 

53,000 

54, £00 

58, 600 

64, 500 

71, 000 

76, 900 

80,000 

81, 800 

89,800 

96,000

102,900 

110,400 

103, 800 

96, 500 

90, 900 

87,000 

86, 200 

77, 200 

70, 100 

64,800

2, 169, 300

Suspended sediment

Mean 

concentration

(percent)

0.70 

.53 

.56 

.65 

.57 

.44 

.50 

.61 

.51 

.56 

.54 

.50 

.64 

.64 

.67 

.73. 

.75 

.68 

.94 

.97 

1.03 

1.00 

.82 

.69 

.56

.63 

.64 

.55 

I/- 42 

.35

Tons 

per 

day

1, 120, 000 

864, 000 

910, 000 

1, 030, 000 

856, 000

618, 000 

698, 000 

851, 000 

716, 000 

786, 000 

773, 000 

736, 000 

1, 010, 000 

1,110,000 

1, 280, 000 

1, 520, 000 

1, 620, 000 

1, 500, 000 

2,280,000 

2, 510, 000

2; 860, 000 

2, 980, 000 

2, 300, 000 

1, 800, 000 

1, 370, 000

1, 480, 000 

1, 490, 000 

1,150,000 

795, 000 

612, 000

39, 620, 000

September

5,570 

5,660 

5,400 

5,140 

4,960

4,700 

4,480 

4,400 

4,450 

4,590

5,220 

5,880 

6,440 

5,400 

6,080 

7,070 

6,060 

6,010 

6,380 

6,680 

6,870 

6,690 

6,660 

6,630 

6,280

5,790 

5,450 

5,390 

5,440 

5,790

171, 560

0.07 

.14 

.24 

.14 

.11

!/ 10

y. 09

1/-07 

.04 

.03

.07 

.40 

1.35 

1.60 

.55

.60 

1.17 

.80 

.52 

.44

.35 

.29 

.27 

I/- 20 

.17 

.15 

.11 

.09 

.06 

.07

10, 500 

21,400 

35,000 

19, 400 

14, 700

12, 700 

10, 900 

8,320 

4,810 

3,720

9,860 

63, 500 

235,000 

233, 000 

90, 300

115,000 

192, 000 

130, 000 

90, 000 

79, 400

64, 900 

52,400 

48, 600 

35, 800 

28, 800

23,400 

16,200 

13, 100 

8,810 

10,900

1, 682, 000

Total discharge for year (second-foot-days) 7,243,160 

Total load tor year (tons) 118,900,000

I/Estimated or interpolated.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Conti

Particle-size analyses of suspended sediment, water year October 1948 

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

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

Date

Oct 12

Oct 19

Oct 26

Dec 14

Tan 1 1949

.Tan 29 

Time

9:35 a.m. 

7:00 a. m. 

7:20 a.m. 

7:25 a.m. 

7:25 a.m. 

7:27 a. m. 

7:45 a. m. 

7:25 a.m.

8:25 a.m. 

7:50 a.m.

8:25 a.m. 

8:20 a.m.

8:19 a.m. 

8:15 a.m. 

8:20 a.m. 

8:31 a.m. 

8:20 a.m. 

8:15 a.m.

8:00 a.m. 

8:00 a. m. 

8:00 a.m. 

8:00 a. m. 

8:00 a. m. 

8:00 a.m. 

8:00 a.m. 

8:00 a. m.

Mean 

discharge 

(secondfeet)

5,670 

5,110 

4,850 

4,690 

5,560 

4,940 

5,190 

5,540

7,390 

6,600 

6,700 

6,280 

6,310

5,380 

5,070 

5,150 

4,750 

6,280 

6,690 

7,080

6,070 

4,890 

2,600 

2,800 

8,910 

8,440 

7,100 

5,980 

7.440

Suspended sedim

Mean daily 

concentration 

(percent)

1.02 

.82 

.29 

.13 

.09 

.06 

.06 

.16

.19 

.11 

.12 

.11 

.11

.11 

.09 

.08 

.02 

.05 

.03 

.13

.20 

.04 

.04 

.65 

.65 

.28 

.34 

. 15 

.07

Weight of 

material 

in tube 

(grams)

0.5717 

.8601 

.2919 

.2673 

.4080 

.2844 

.2801 

.5986

.7054 

.1725 

.4211 

.3508 

.2286

.3583 

.3255 

.3192 

.0807 

.1041 

.2300 

.2098

.2991 

.1411 

.1512 

.9575 

.3195 

.2617 

.2565 

.2356 

.2505

Percent finer 

0.002

52 

64 

35 

35 

15 

20 

24 

64

53 

39 

15 

19 

28

14 

15 

50 

43 

33 

40 

28

42 

44 

31 

45 

54 

40 

51 

44 

65

0.004

65 

80 

51 

52 

38 

39 

46 

80

74 

56 

35 

59 

48

51 

53 

64 

52 

44 

54 

42

63 

57 

53 

52 

63 

52 

68 

60 

78

0.008

86 

92 

66 

68 

55 

56 

62 

94

86 

70 

46 

73 

61

66 

68 

78 

64 

60 

63 

56

79 

72 

69 

68 

80 

65 

78 

71 

89

0.016

97 

96 

83 

84 

72 

74 

80 

98

93 

85 

80 

83 

76

80 

80 

90 

78 

75 

85 

71

91 

85 

84 

84 

90 

77 

88 

84 

95

0.0
Vfav 91

Mav 31 ... _ __ - ......

8:00 a.m. 

8:30 a.m. 

8:30 a. m. 

8:30 a.m. 

8:30 a.m.

4,880 

5,530 

5,970 

6,670 

6,760 

11,200

12,300 

11,300 

13,600 

17,300 

14,300 

12, 900

12,900 

12, 700 

10, 900 

16,300 

19,500 

24,200 

26, 600 

34,600

50,200 

47, 100 

45,600 

50,800 

55, 900 

48, 900 

46,500 

Rfi ann

.06 

.05 

.05 

.04 

.05 

.06

1.61

.83

1.26

1.00

.64

.38

.41 

.49 

.40 

.83 

.86 

.81 

.73 

1.00

1.02 

.83 

.69 

.95 

.81 

.63 

.57 

.55

.1968

.1713

.2071

. 1771

.1789

.2149

.3317

.4049

.3249

.3422

.3755

.6151

.6636

1.2194

.8062

.5834

.7089

1.3034

.6433

2.2312

.9379

4.4488

2. 7074

.6923

.9053

.9029

.9774

.3137

.4829

37

37

35

40

35

32

36

49

39

47

24

29

39

24

25

35

11

20

172

10

122

10

1179

136

44

45

42

49

42

41

48

67

52

52

31

41

44

33

37

51

22

30

26

28

14

13

13

15

15

12

13

189

52

48

50

57

50

50

57

80

64

66

40

52

59

42

47

65

36

37

34

37

18

18

17

20

19

16

17

24

14

62

62

63

67

66

63

69

87

76

78

50

64

68

52

57

79

45

45

43

46

23

23

23

27

24

21

22

31

20
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR GRAND CANYON, ARIZ. Cont

Particle-size analyses of suspended sediment, water year October 1948 to S

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

W, in distilled water; C, chemically dispersed; M, mechanicall

Date

Aug. 2 - - 

Time

Mean 

discharge 

(secondfeet)

58, 700 

51,700 

52, 000 

53,000 

64,500 

80,000 

102, 900 

96, 500 

77,200

61,000 

49, 000 

41,600 

33,400 

21,000 

20,000

15,200 

11,700 

8,420 

7,000 

7,100 

5,920

5,660 

4,450 

6,440 

5,790

Suspended sed

Mean daily 

concentration 

(percent)

0.65 

.50 

.51 

.54 

.64 

.75 

1.03 

.69 

.55

.41 

.28 

.51 

.33 

.13 

.45

.37 

.12 

.56 

.20 

.14 

.09

.14 

.04 

.13 

.07

Weight of 

material 

in tube 

(grams)

1.3338 

.6139 

.6051 

.4866 

.4642 

.3675 

.2699 

.6093 

.4498

.7554 

.3273 

.4371 

1.0756 

.4420 

.7652

.7234 

.4482 

.9864 

.7113 

.2456 

.1934

.1644 

.1931 

.2774 

.1388

Percent fine

0.002

8 

10 

7 

13 

12 

14 

15 

10 

15

17 

17 

19 

41 

31 

61

34 

42 

58 

51 

39 

30

39 

32 

36 

39

0.004

12 

14 

18 

20 

17 

22 

20 

15 

23

18 

23 

31 

54 

46 

68

51 

56 

79 

72 

58 

46

51 

49 

51 

54

0.008

16 

19 

30 

25 

25 

31 

28 

21 

31

27 

33

45 

68 

59 

82

67 

69 

91 

84 

76 

67

68 

68 

67 

72

0.016

21

27 

47 

36 

33 

40 

34 

27 

40

34 

43 

58 

78 

69 

88

82 

81 

97 

92 

86 

85

87 

84 

87 

86

0
COLORADO RIVER MAIN STEM--Continued 

LAKE MEAD NEAR BOULDER CITY, NEV. 

Chemical analyses, in parts per million, water year October 1948 to Se

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

(°F)

Specific 

conductance 

(micromhos 

at 25°C )

Silica

(sicg

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na + K)

Bic

(

LINE OF DEMARCATION BETWEEN TURBID AND CLEAR WATE

Mar. 23, 1949 - 3 1,145 

1,196

55 1,280 

651

13 

13 64 19 44

EMERY FALLS, MILE 275-275.6

July 20, 1949 5 

39 

45

0 

IS 

25

1,191 

1,157 

1,151

1,189 

1,174 

1,164

77.5 

77.6 

77.6

584 

610 

1,060

1,630 

1,620 

1,680

15 

20

58 

130

18 

40

42 

191

PIERCE FERRY BAY, MILE 279 

Oct. 29, 1948 

Dec 30

Jan. 29, 1949 --

5 

5 

5

5 

5 

5 

5 

5 

5 

5 

5 

5

1,160

1,147 

1,142 

1,142

72 

62 

65

50 

53 

55 

70 

70 

74.4

85 

71

1,120 

1,130 

1,030

1,020 

1,020 

1,180 

856 

500 

393 

641 

791 

938

11

10

15 

11

14

93

43 

39

74

31

17 

13

27

118

33 

21

89
COLORADO RIVER MAIN STEM--Continued 

LAKE MEAD NEAR BOULDER CITY, NEV.--Continued

Chemical analyses, in parts per million, water year October 1948 to Septemb

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

(°F)

Specific 

conductance 

(micromhos 

at 25°C )

Silica 

(Si04)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na+K)

Bic

(

MILE 281.5

July 20, 1949 5 

50 

100 

150 

200 

224 

228

1,191 

1,146 

1,096 

1,046 

996 

972 

968

81.0 

78.9 

72.7 

57.7 

55.0 

51.8 

51.2

575 

554 

517 

1,010 

1,070 

1,040 

1,320

14

13 

11

61

54 

92

20

17 

29

21

29 

80

GRAND WASH, MILE 284.7

Seot 29

^oi-if 9O

5 

50 

95 

100

0 

50 

100 

145

1,191 

1,146 

1,101 

1,096

1,189 

1,139 

1,089 

1,044

85.2 

80.9 

72.4 

64.7

526 

547 

512 

659

789 

1,170 

807 

907

13

18 

12

56

70 

92

17

23 

34

35

68 

113

ICEBERG CANYON, MILE 287.5

Mar. 23, 1949 

Mar 23

5 

50 

100 

150 

175 

180

5 

50 

100 

150 

200 

215 

217

1,143 

1,098 

1,048 

988 

973 

968

1,184 

1,139 

1,089 

1,039 

989 

974 

972

55.2 

54.4 

53.2 

53.2 

53.4 

53.2

82.0 

78.8 

72.3 

63.3 

55.0 

55.1 

56.5

1,020 

1,060 

1,160 

1,150 

1,160 

1,280

744 

1,130 

820 

960 

1,030 

1,030 

1,160

11 

14

11 

11 

13

88 

94

92 

80 

86

26 

29

33 

23 

29

97 

118

105 

95 

98
SANDY POINT, MILE 293.5

July 19, 1949- 

July 19 - 

July 19 - 

July 19 - 

July 19 - 

July 19 - 

July 19 -

Sept. 20- 

Sept. 20- 

Sept. 20- 

Sept. 20- 

Sept. 20- 

Sept. 20- 

Sept. 20-

100

150

200

250

2800

50

100

150

200

250

270

1,191

1,146

1,096

1,046

996

946

916

1,189

1,139

1,089

1,039

82. 6

75.5

68.5

58.5

52.6

51.6

51.1

80.4

79.1

72.0

62.1

55.3

54.7

54.3

492

495

512

970

1,070

1,060

1,250

710

978

684

942

1,040

1,020

1,020

VIRGIN CANYON, MILE 305.3

Mar. 22, 1949 

Mar 22

Qcmt on

5

1 f\f\

o en

OrtO

305

1 f\r\

345

urt i

1,143

998

948

898

(M c

i 1 fid.

1 139

1 089

989

939

889

57.3

CO 0

4Q fi

49 9

50 4

49 7

49 5

dQ R

79 9

53 3

954

QKA

997

857

994

9.4

 10

87

93

70

on

24

1 P

29

85

OA
COLORADO RIVER MAIN STEM--Continued

LAKE MEAD NEAR BOULDER CITY, NEV. Continued

Chemical analyses, in parts per million, water year October 1948 to September 

Date of 

collection

J

nlv 91 1 QAQ

Depth 

(feet)

Elevation 

(feet)

5 

50 

100 

150 

200 

250 

300 

350 

357 

359

1,191 

1,146 

1,096 

1,046 

996 

946 

896 

846 

839 

837

Temperature 

(°F)

Specific 

conductance 

(micromhos 

at 25°C )

492 

462 

544 

888 

983 

1,050 

1,020 

1,010 

1,010 

1,080

Silica 

(Si04)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na+K)

Bicar

(H

MILE 308

10 

12

55 

94

15 

28

23 

90

VIRGIN RIVER ARM OF LAKE (AT LINE OF DEMARCATION BETWEEN TURBID A

Mar. 24, 1949 - 3 

0 

15

1,145 

1,189 

1,174

57.0 

84.2 

82.4

1,440 

810 

1,070

34 

11 

23

76 

102

25 

33

61 

86

VIRGIN RIVER ARM OF LAKE OPPOSITE SALT MINE, 15 MILES ABOVE MO

Mar. 24, 1949 0 

5

1,148 

1,184

55.0 

80

977 

755 14 68 23 61

VIRGIN RIVER ARM OF LAKE, 9.3 MILES ABOVE MOUTH OF RIVER (LOWER VIR

Mar. 24, 1949 - 5 

50 

100 

150 

200 

248 

250

1,143 

1,098 

1,048 

998 

948 

900 

898

55.4 

53.6 

51.2 

49.1 

48.0 

47.6 

47.6

951 

948 

942 

924 

921 

918 

1,050

9.7

11 

46

89

84 

111

25

23 

26

79

83 

86
VIRGIN RIVER ARM OF LAKE, 9.3 MILES ABOVE MOUTH OF RIVER .(LOWER VIRG

Sept. 22, 1949 

Qont 99

86Dt 22

Qont 99

«to * 99

Clanfr 99

5 1,184

one

82.4

cn ft

713 --

32

-- - - 

BOULDER CANYON, MILE 334-335

Mar. 21, 1949 

Sent 10 

5

<W9

1,143

QAQ

1 184

pan

7Rft

55.9

AO n

72 0

52 9

co i

FW 4

948

975

no 7

990

1 n»n

10_

18

87

oo

89

27 76 
COLORADO RIVER MAIN STEM--Continued

LAKE MEAD NEAR BOULDER CITY, NEV. Continued

Chemical analyses, in parts per million, water year October 1948 to Septembe

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

<°F)

Specific 

conductance 

micromhos 

at 25°C )

Silica 

(SiOj)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na + K)

Bic

(

NEAR INTAKE TOWERS, MILE 353.5

Oct. 22, 1948 5 

50 

100 

150 

200 

250 

300 

350 

400 

439 

440

5 

50 

10T 

150 

200 

250 

300 

350 

400 

433 

434

5 

50 

100 

150 

200 

250 

300 

350 

400 

425 

42ft

1,172 

1,127 

1,077 

1,027 

977 

927 

877 

827 

777 

738 

737

1,166 

1,121 

1,071 

1,021 

971 

921 

871 

821 

771 

738 

737

1,160 

1,115 

1,065 

1,015 

965 

915 

865 

815 

765 

740 

737

72.4 

72.4 

72.3 

57.0 

53.4 

52.7 

52.2 

52.2 

52.1 

52.2

61.4 

61.2 

61.1 

60.0 

53.4 

52.8 

52.5 

52.4 

52.5 

52.5 

53.1

65.2 

65.2 

56.1 

56.1 

55.2 

53.2 

52.8 

52.8 

52.7 

52.8 

S3. R

767 

768 

774 

991 

1,010 

1,010 

1,010 

1,020 

1,020 

1,050 

1,480

812 

811 

810 

883 

1,010 

1,010 

,020 

,020 

,020 

,060 

,070

855 

851 

862 

857 

931 

1,030 

1,020 

1,030 

1,040 

1,040 

1.260

11 

11

9.9

14 

11

12 

11

27

68 

92

75

99 

80

86 

91 

125

19 

24

21

29 

24

26 

27 

43

79 

93

74

95 

72

78 

87 

113
NEAR INTAKE TOWERS, MILE 353.5--Continued

Jan. 28, 1949 

Mar 29

Mar 29

5

250

OCf\

1,154

QCQ

909

OCQ

759

700

952

852

7 CO

707

1 047

997

897

737

7QC

51.8 

51 9

51 3

52 2

52 3

52 2

49 5

49 5

49 5

53 2

53 2

CO f\

48 9

AQ Q

48 9

48 9

48 9

*

926 

921

Q9ft

926

non

946

994

933

nqo

933

930

935

946

949

QCC

952

975

951

954

951

951

967

--

9 9

--

Ql

Qfl

85

85

00

88

--

24

OQ

25

25

25

"

94

96

70

OC

on

89
COLORADO RIVER MAIN STEM--Continued 

LAKE MEAD NEAR BOULDER CITY, NEV.--Continued 

Chemical analyses, in parts per million, water year October 1948 to Septembe

Date of 

collection

Depth 

(feet)

Elevation 

(feet)

Temperature 

<°F)

Specific 

conductance 

(micromhos 

at 25°C )

Silica 

(SiOj

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium and 

potassium 

(Na+ K)

B

NEAR INTAKE TOWERS, MILE 353 .5--Continued

Apr. 28, 1949 5 

50 

100 

150 

200 

250 

300 

350 

400 

410 

412

5 

50 

100 

150 

200 

250 

300 

350 

400 

425 

426

5 

50 

100 

150 

200 

250 

300 

350 

400 

452 

455

1,142 

1,097 

1,047 

997 

947 

897 

847 

797 

747 

737 

735

1,157 

1,112 

1,062 

1,012 

962 

912 

862 

812 

762 

737 

736

1,184 

1,139 

1,089 

1,039 

989 

939 

889 

839 

789 

737 

734

66.9 

57.2 

51.5 

50.5 

49.7 

40.0 

48.7 

48.1 

48.1 

48.1 

50.1

75.9 

67.5 

57.1 

54.2 

52.8 

52.1 

51.0 

51.0 

51.0 

51.0 

52.0

73.0 

72.4 

66.4 

55.8 

52.4 

52.0 

51.3 

51.3 

51.0 

51.6 

53.6

957 

951 

951 

957 

997 

1,010 

1,010 

1,010 

1,010 

1,020 

1,020

973 

964 

961 

957 

961 

977 

1,000 

1,010 

1,010 

1,010 

1,170

918 

924 

939 

957 

967 

980 

1,000 

954 

1,010 

993 

1,020

10

11 

11 

11

11 

11

87

88 

87 

83

77 

85

25

26 

29 

28

26 

26

84

93

77 

79

77 

80
NEAR INTAKE TOWERS, MILE 353.5--Continued

July 28, 1949- 

July 28 - 

July 28 - 

July 28 - 

July 28 - 

July 28 - 

July 28 - 

July 28 - 

July 28 - 

July 2F - 

July 28 - 

July 28 -

Aug. 30 -

Aug. 30 ------

Aug. 30 

Aug. 30 

Aug. 30 -

Aug. 30 ------

Aug. 30 -

Aug. 30 

Aug. 30 

Aug. 30 

Aug. 30 

Aug. 30 

Sept. 29 -

Sept. 29 

Sept. 29 -

Sept. 29 -

Sept. 29------

Sept. 29 -

Sept. 29 -

Sept. 29 

Sept. 29 

Sept. 29------

5

50

100

150

200

250

300

350

400

450

463

4645

50

100

150

200

250

300

350

400

450

460

4625

50

100

150

200

250

300

350

400

455

1,192

1,147

1,097

1,047

997

947

897

847

797

747

734

733

1,189

1,144

1,094

1,044

994

944

894

844

794

744

734

732

1,182

1,137

1,087

1,037

987

937

887

837

787

732

77.8

76.8

70.6

61.4

53.9

53.0

52.7

52.7

52.4

52.2

52.2

52.8

81.0

81.3

73.9

62.4

54.6

54.0

53.6

53.5

53.5

53.3

54.7

56.8

77.4

77.2

71.2

59.4

50.4

49.2

48.7

48.7

48.7

48.7

844

841

954

964

973

987

997

1,000

1,000

1,010

1,240

1,240

809

806

820

922

952

976

982

982

985

997

997

1,050

787

798

792

925

964

998

955

933

1,020
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER BELOW HOOVER DAJJ, ARIZ.-NEV.

LOCATION. At Hoover Dam, about 1 mile upstream from gaging station,

DRAINAGE AREA.--167,800 square miles.

RECORDS AVAILABLE.--Chemical analyses: October 1939 to September 1944.

Water temperatures: October 1941 to September 1949. 

EXTREMES, 1948-49.--Specific conductance: Maximum, 1,040 Nov. 19; minimum, 877 Sept. 28.

Water temperatures: Maximum, 64° F on several days in October and September; minimum, 50° F Mar. 

EXTREMES, 1939-49.--Dissolved solids Maximum, 824 parts per million Mar. 1-10, 1941; minimum, 572 

Total hardness: Maximum, 426 parts per million Jan. 21-31, 1941; minimum, 300 parts per million S

Water temperatures, 1941-49: Maximum, 69° F Sept. 27, 1945 and several days in 1947 and 1948; mi

Chemical analyses, in parts per million, November 1948 to Septem

Date of collection

Nov. 12, 15-19, 1948 

Jan. 3-7, 10, 1949 

Jan. 11-14, 17-20 

July 11-14, 18-20 

Aug. 11-12, 15-19 -- 

Sept. 21-23, 26-30 

Mean 

discharge 

(secondfeet)

19, 320 

21,830 

21,620

18, 140 

18, 860 

18, 860 

21, 190

PH

7.5 

7.8 

7.8

7.6 

7.5 

7.2 

7.4

Specific 

conductance 

(micromhos at 

25° C )

1,030 

928 

922

986 

951 

937 

890

Silica 

(SiO,)

11 

11

12

13 

11 

12 

12

Iron

(Fe)

0.03 

.03

.04 

.02 

.01

Calcium 

(Ca)

92 

82 

81

86 

83 

82 

79

Magnesium 

(Mg)

28 

24 

24

25 

24 

26 

25

Sodium 

(Na)

Potassium 

(K)

85 

88 

85

93 

89 

78 

76

Bicarbonate 

(HCOS)

168 

156 

154

162 

156 

156 

156

Sulfate 

(S0«)

277 

262 

255

267 

261 

251 

240

Chloride 

(Cl)

71 

64 

65

75 

70 

63 

61
Specific conductance (micromhos at 25* C ), water year Oct

Day

29

October

927

910

930

925

QiR

927

922

922

RQ1

899

902

November

912

901

December January

917

932

923

932

QOfi

926

929

946

934

928

Q0-|

942

February

939

931

QOR

931

931

937

937

934

931

939

939

947

March

QOQ

956

QCf\

950

964

956

970

976

QOO

Q7Q

A
COLORADO RIVER MAIN STEM Conti

COLORADO RIVER BELOW HOOVER DAM, ARIZ-N

Temperature (° F ) of water, water year October 1948 

Day

2

1 9

19

20

91

99

9«

on

9ft

9Q

30

October

"

November December January

 

""

February

"

~~

March

 

"

~"

Apr
COLORADO RIVER MAIN STEM Continued

MISCELLANEOUS ANALYSES OF STREAMS IN COLORADO RIVER 

Chemical analyses, In parts per million, frater year October 1948 to S

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

Specific 

conductance 

(micromhos at 

25* C )

Silica 

(SiO,)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium

(Na)

Potassium 

(K)

Bicarbonate 

(HCO.)

Sulfate 

(SO,)

Chloride 

(Cl)

COLORADO RIVER NEAR KITE, UTAH

Oct. 7, 15, 28, 1948- 

Nov. 2, 9, 17, 24 - 

Dec. 2, 8, 17, 26 

Jan. 11, 18, 24, 1949

Mar 10 25

Mav 3 12

4,280 

5,430 

4,610 

4,450 

6,510 

9,040

10, 000 

32, 500 

56, 600 

27, 100 

8,530 

4,890

7.9 

8.0 

7. <) 

8.0 

7.9

8.1 

8.2 

8.1 

8.0 

7.8

1,870 

1,660 

1,660 

1,570 

1,410 

1,320

1,210 

513 

464 

762 

1,160 

1, 790

14 

15 

13 

13 

13

11 

13 

15 

13 

13

0.02 

.02 

.02 

.02 

.02 

.00

.00 

.02 

.03 

.05 

.05

136 

136 

126 

121 

109 

87

78 

55 

56 

80 

100 

140

58 

57 

55 

52 

43 

42

35 

17 

14 

23 

38 

58

233 

169 

176 

161 

149 

147

139 

34 

24 

61 

110 

195

222 

194 

236 

239 

218 

180

144 

178 

159 

196 

192 

214

663 

562 

490 

442 

375 

402

372 

102 

92 

207 

358 

605

14

13

15

14

14

9

9

1

1

3

7

14

COLORADO RIVER AT YUMA, ARIZ.

Oct 8 1948

Mav Q

Seot 9 v '

5,910 

8,500 

14, 300 

13, 000 

16, 900 

17, 900

6,740 

7,000 

5,420 

1,310 

5,790

1,040 

1,000 

1,060 

1,060 

997 

968

1,020 

1,090 

1,080 

1,140 

997

15 

12 

11 

10 

12 

11

13 

14 

13

168 

162 

174 

171 

164 

162

165 

172 

170 

178 

186

277 

274 

291 

291 

274 

270

269 

281 

292 

280 

269

7

7

7

7

7

7

8

8

8

10

8
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL D

YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON AT YUMA, 

LOCATION. Oct. 1, 1942 to Jan. 31, 1943, at gaging station on Colorado River 1,800 feet downstream f

5 miles downstream from Gila River, 19 miles downstream from Imperial Dam, and 7 and 29 miles upst

Arizona. Feb. 1, 1943 to Sept. 30, 1949 at gaging station on Yuma main canal below Colorado River 

downstream from siphon drop power plant.

DRAINAGE AREA. 242,900 square miles, including all closed basins entirely within drainage boundary.

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 to September 1

EXTREMES, 1948-49. Dissolved solids: Maximum, 710 parts per million Dec. 21-24, 27-31; minimum, 610 

Total hardness: Maximum, 356 parts per million Dec. 21-24, 27-31; minimum,312 parts per million Ma

EXTREMES, 1926-28, 1942-49. Dissolved solids: Maximum, 1,300 parts per million Jan. 11-20, 1927; mi

Total hardness: Maximum, 567 parts per million Oct. 21-31, 1926; minimum, 163 parts per million Ju

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Pa

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Oct. 1, 4-8, 1948 

Oct. 11-15, 18-20 

Oct. 21-22, 25-29 

Nov. 1-5, 8-10 

Nov. 11-12, 15-19 

Nov. 22-24, 26, 29-30

Dec. 1-3, 6-10 

Dec. 13-17, 20 

Dec. 21-24, 27-31 

Jan. 3-7, 10, 1949 

Jan. 11-14, 17-20 

Jan. 21, 24-28, 31 

Feb. 1-4, 7-10 

Feb. 11, 14-18 

Feb. 21, 23-25, 28 

Mar. 1-4, 7-10 

Mar. 11, 14-18 

Mar. 21-25, 28-31-

Mean

discharge 

(secondfeet)!/

665

591

558

644

585

545

484

494

425

578

340

222

383

423

622

676

660

633

pH

7.8

7.6

8.0

8.1

8.0

8.1

8.1

8.0

7.7

8.0

8.0

8.0

8.0

8.0

8.0

8.1

8.1

8.0

Specific

conductance 

(micromhos at

25° C )

1,020

1,010

1,000

990

984

963

1,020

1,060

1,070

1,060

1,040

988

976

979

976

973

973

997

Silica 

(Si02)

12

16

12

13

12

13

11

12

10

13

11

12

12

13

13

14

11

11

Iron 

(Fe)

0.03

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.02

.01

.01

.01

.02

Calcium 

(Ca)

88

91

88

88

87

88

90

97

98

93

91

88

84

85

87

84

84

88

Magnesium 

(Mg)

30

29

28

25

25

24

27

27

27

29

28

27

26

26

26

26

25

26

Sodium 

(Na)

86

78

82

89

87

74

90

88

96

93

89

80

87

86

87

86

90

90

Potassium 

(K)

6.8

6.8

7.4

6.8

6.8

7.2

7.2

7.4

7.4

9.8

12

12

9.8

9.8

9.0

11

8.8

7.0

Bicarbonate 

(HC03)

167

162

160

164

161

163

168

172

172

169

166

160

163

161

170

163

163

164

Sulfate 

(S04)

295

289

281

281

277

273

290

301

304

302

288

274

270

274

271

268

270

274

Chloride 

(Cl)

65

62

68

68

68

48

70

68

80

78

79

72

72

71

71

73

73

77

I/Discharge values shown are only for those days when samples were collected.
Apr. 11-15, 18-20 

Apr. 21-22, 25-29 

May 11-13, 16-17,

May 23-26, 28, 30-31

June 21-24, 27-30 

July 11-15, 18-20 

July 21-22, 25-29 

Aug. 1-5, 8-10 

Aug. 11-12, 15-19 

Aug. 22-26, 29-31 

Sept. 12-16, 19-20 

Sept. 21-23, 26-30 

Weighted average -

652 

751 

678 

646

603 

598

561 

542 

559 

442 

609 

647

671 

682 

657 

641 

669 

685

578

8.1 

8.1 

8.0 

8.0

8.0 

8.1

8.0 

8.0 

8.0 

8.0 

8.1 

7.7

7.8 

7.8 

7.8 

7.8 

7.9 

7.8

--

1,010 

1,030 

1,050 

1,050

1,050 

1,050

1,050 

1,050 

1,050 

1,040 

1,040 

1,030

1,010 

1,000 

988 

981 

981 

972

1,010

12 

12 

14 

15

15 

13

14 

11 

16 

15 

14 

16

13 

13 

13 

14 

14 

13

13

.02 

.01 

.02 

.01

.01 

.02

.01 

.01 

.01 

.01 

.01 

.02

.01 

.02 

.02 

.02 

.02 

.02

0.02

86 

86 

91 

92

92 

90

90 

90 

91 

89 

87 

88

86 

86 

83 

82 

84 

83

88

27 

27 

29 

30

30 

30

30 

30 

29 

30 

28 

29

29

25 

26 

27 

28 

27

28

92 

93 

90 

86

88 

92

94 

89 

96 

92 

96 

90

88 

93 

91 

89 

84 

84

89

9.0 

9.2 

5.6 

4.8

5.4 

4.2

4.2 

4.8 

4.8 

4.4 

4.4 

2.8

3.2 

3.8 

3.2 

4.8 

4.0 

4.6

6.4

164 

164 

168 

170

174 

170

170 

166 

170 

166 

166 

166

160 

158 

158 

160 

156 

160

165

281 

278 

284 

281

282 

284

290 

285 

294 

287 

290 

281

278 

277 

270 

270 

269 

263

281

77 

81 

80 

80

80 

82

81 

79 

81 

80 

76 

76

75 

75 

73 

72 

73 

71

74
TRIBUTARIES ABOVE GUNNISON RIVER

EAGLE RIVER BELOW GYPSUM, COLO.

LOCATION. At bridge on U. S. Highways 6 and 24 at Gypsum, Eagle County, and just above Gypsum Cree

is below Gypsum Creek.

DRAINAGE AREA. Approximately 849 square miles. 

RECORDS AVAILABLE. Chemical analyses: April 1947 to September 1949.

Water temperatures: April to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 829 parts per million Oct. 1-10; minimum, 114 carts 

Total hardness: Maximum, 477 parts per million Oct. 1-10; minimum, 84 parts oer million June 11-

EXTREMES, 1947-49. Dissolved solids: Maximum, 874 parts per million Sept. 21-30, 1948; minimum, 1

Total hardness: Maximum, 511 parts per million Sept. 21-30, 1948; minimum, 78 parts per million 

REMARKS. Records of discharge for gaging station for water year October 1948 to September 1949 giv

conductance of daily samples available in district office at Salt Lake City, Utah.

Chemical analyses, In parts per million, water year October 1948 to Sep

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 -

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

Ma v 9.1 -.11 

Mean 

discharge 

(secondfeet)

223 

244 

225 

212 

213 

197

193 

214 

188 

189 

195 

192

202 

201 

202 

213 

212 

206

219 

285 

712 

839 

1,150 

1 RIO

Temperature 

(°F)

PH

7.7 

7.8 

7.8 

7.7 

7.8 

7.9

8.1 

8.1 

8.1 

8.2 

8.0 

8.1

7.7 

7.7 

7.9 

8.0 

7.9 

7.9

8.0 

7.8 

7.6 

7.6 

7.6 

7 S

Specific 

conductance 

(micromhos at 

25" C)

1,280 

1,190 

1,230 

1,150 

1,170 

1,220

1,230 

1,160 

1,170 

1,170 

1,160 

1,170

1,160 

1,150 

1,100 

1,080 

1,070 

1,010

932 

657 

368 

336 

286 

2R2

Silica 

(Si02)

12 

12 

11 

12 

12 

12

13 

12 

12 

13 

12 

11

12 

12 

12 

11 

11 

10

10 

8.9 

8.4 

7.1 

6.9

R 7.

Iron 

(Fe)

0.04 

.04 

.03 

.03 

.02 

.03

.03 

.02 

.03 

.04 

.04 

.04

.03 

.03 

.02 

.02 

.02 

.02

.03 

.05 

.19 

.15 

.11 

n«

Calcium 

(Ca)

145 

132 

135 

121 

123 

126

129 

119 

123 

124 

123 

123

123 

124 

120 

116 

117 

108

107 

76 

46 

39 

34 

in

Magnesium 

(Mg)

28 

26 

27 

26 

27 

27

28 

26 

26 

27 

27 

27

28 

28 

27 

27 

27 

26

25 

18 

9.8 

9.0 

7.5

R 7

Sodium 

(Na)

90 

85 

89 

84 

89 

92

92 

85 

87 

86 

85 

86

82 

79 

75 

75 

70 

69

50 

30 

14 

14 

9.7 

a 7

Potassium 

(K)

6.9 

6.1 

5.6 

5.0 

5.0 

6.1

5.6 

5.4 

5.0 

5.8 

5.4 

5.9

5.3 

4.8 

6.4 

5.0 

6.1 

4.3

6.8 

5.6 

2.6 

4.6 

4.8 

4 7.

Bicarbonate 

(HCO,)

202 

192 

192 

168 

186 

186

190 

178 

183 

186 

164 

182

180 

177 

167 

166 

174 

166

166 

138 

109 

98 

88 

R1

Sulfate 

(S04)

310 

280 

290 

276 

263 

272

276 

253 

263 

266 

269 

270

269 

274 

276 

266 

264 

247

225 

147 

68 

59 

45 

dn

Chloride 

(Cl)

136 

127 

133 

122 

135 

139

142 

131 

131 

130 

126 

128

125 

121 

110 

110 

102 

97

82 

48 

18 

20 

16 

14
TRIBUTARIES ABOVE GUNNISON RIVER 425

CO O CO t- C4 C4

O CO C4 ^44 CO CO

CO ^4 N 00 lA ^4 

OS CO OS O Ift CO

woo** Ooo

C4 1? Ift ^* O CO

t- ^-t O CO C- COS CO 00 ** CO O

§2Ssss

§§§§§§

o to o> o co oo

** *4 *4

OOCOCOCON^

oo 

os tn O co co co

CD CO 00 CO O 00

co cfl eo ^ co os

N N i* CO CO CO 

OO t- C- C- OS O

fr- i* OS O CO O

NN^CO<NCO

CO V OS O O lA

CO C- lA N tift ^4 in" co os ^H

OS CO CO CO CO CO N N N eo ^4 IA

SSggSS

MIA-NM-

«,«««c-oo

 44 CD Cb ^« IA IO 

N Cft N & O CO

N * -W TT TT 10

c-c-c-c-c-cC- rt O CO rt « 

C4 <-* I/S C- t- CO cot- co eo o eo

oS^lss

lillfl

(M 1 <M 03 <M 03 <M

CO 1 CO CO CO 00 N 

CO 1 O ^« ^« lA lA

iH 1 tn C4 ^ CO CO

lA 1 -fli OS CO ^ O

C- 1 1-* CO "3 CO OS 

SI O rH OS 00 Ift 

IA ^4 eo m ^

S

i co co co -34 eo 

1 C" OO OO OS OS

os i m N co oo oo 

eo IA to co co co

0 ! §0000

^NlA-HNOC-

^ ^CSI N N N

^ 1 ^N^N^

os c- c- c- c- co eg

^T 144 CO CO OO OS O

-H g> « o os co c- ^4 o O 144 ^r to in

sIsSssS

0 1 M <NC-^C-

 ^4 IA in eo co n

Ift TJ4 CO Cfl OS «

co ^r ift co co c2 ! sss ^

CO 1 Ml CO CO CO C4

s ssssss

 ^ OS CCO OO OS Cft O ^H ^

C9 O tt> rt « OO in IA in a c& CT &

CO OO QO C6 Cft O O

IA 1 CO C- OS »-l OS

C- t- C- C- CO Cos o * m OTT ce

o 

t- e , ,, o o

rt <0 rt « ~ rt N

wi M u M'S.'S.'S, 

2323 9 s * < « < o5 oa ro

79

 *

OS

2

I

o *

i

§

o

«

^

!M

CO

o

s

u>

m

(0

-

s

s

o

^*

c-

^*

J

to

s

elghted average 

*
426 COLORADO RIVER BASIN

O)

1 I I I

VER Contii 0.--Contin 1948 toSe( er 

_, .q -Q 

as p 5

O o

1 , ?

| g *

i § *-

* « f

ra es ?

I S *

la*-

H o u 

1

tt

&

e

a,

1

!

i-.

I

3 

1

1

t

h.

I

h

i

I

October

& 

Q

5SSS ! S£3£§ SSS3S SSSSS SSSSS SSS!S!

SSK15 ! !gSS SSSSS SSSSS ISSSS SSSSSK

SSIKS !!!g| SSSSS 5SSSS SSSSS SSSSSS

Tfin^-^.^. in^.,0^. , ^.io^.^.in in ^. ^. in .* Tf in in * in in ^. in in in

 * * * * * Tfini iin tntniiATl* T|«IT|«T|«T|« mi IT|«I iniiniin-*

" m '"" IW"ilMWMWM1

3

O

CO

s

;

1
GUNNISON RIVER BASIN 

GUNNISON RIVER NEAR GRAND JUNCTION, COLO.

LOCATION. At gaging station half a mile upstream from point of diversion of Redlands power canal a

Mesa County, and after Jan. 13, 1949, at highway bridge about 1 mile below Redlands power dam. 

DRAINAGE AREA.--Approximately 8,020 square miles. 

RECORDS AVAILABLE.--Chemical analyses: October 1931 to September 1949.

Water temperatures: April to September 1949. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mean 

discharge 

(secondfeet)

994 

907 

884 

1,066 

1,287

1,174 

1,165 

1,067 

734 

823 

906

831 

960

1,063

pH

7.9 

8.0

8.0 

7.7

8.0

7.9

Specific 

conductance 

(micromhos at 

25° C )

2,020 

2,060 

2,070 

1,910 

1,680

1,640 

1,510 

1,520 

1,580 

1,480 

1,440

1,460 

1,410

1,410 

i 97n

Silica 

(810,)

21 

20

19 

20

19

16

Iron 

(Fe)

Calcium 

(Ca)

210 

168

138 

138

126 

122

Magnesium 

(Mg)

87 

71

64 

59

61 

61

Sodium 

(Na)

Potassium 

(K)

184 

142

141 

126

113 

117

Bicarbonate 

(HCO,)

250 

243

222 

222

215 

199

Sulfate 

(S0«)

1,000 

757

668 

619

580 

588

Chlorid

(Cl)

19 

15

17 

19

16 

19
GUNNISON RIVER BASIN Continued 

GUNNISON RIVER NEAR GRAND JUNCTION, COLO.--Contin

Chemical analyses, in parts per million, water year October 1948 to Septemb

Date of collection

Apr. 1-10, 1949 -

June 21-30 

Weighted average -

Mean 

discharge 

(secondfeet)

1,568 

2,845 

7 453

7,391 

8,289 

7 802

7,233 

13,270 

12,320 

6,943 

4,115 

2,076

1,004 

844 

726 

1,140 

828

2,927

PH

7.9

7.9

8.0 

7.9

8.1 

8.1

"

Specific 

conductance 

(micromhos at 

25° C )

1,270 

775 

426 

409 

437 

457

517 

463 

456 

579 

738 

1,030

1,680 

1,990 

2,080 

1,840 

2,130

784

Silica 

(Si02)

18 

16

18 

20

17 

19

-

Iron

(Fe)

Calcium 

(Ca)

86 

50

55 

77

181 

200

"

Magnesium 

(Mg)

27 

12

10 

25

67 

73

-

So Po~ 

dium *fs- 

/ > slum

(Na) (K)

48 

26

29 

43

139 

145

--

Bicarbonate 

(HCO,)

191 

134

140 

143

217 

221

"

Sulfate 

(S0«)

247 

110

117 

250

786 

860

"

Chloride 

(Cl)

8 

4

2.2

6.5

18 

20

-
Temperature (° F ) of water, water year October 

Day

9 - -

*>Q

22

24

25

27

on

verage

October November December January February March 
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 m

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

DRAINAGE AREA. 4,350 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: April to September 1949. _ 

EXTREMES, 1948-49. Dissolved solids: Maximum, 4,050 parts per million Sept. 21-30; minimum, 22

Total hardness: Maximum, 866 parts per million Sept. 21-30; minimum, 138 parts per million Jun

EXTREMES, 1947-48. Dissolved solids: Maximum, 4,050 parts per million Sept. 21-30, 1949; minimu

Total hardness: Maximum, 866 parts per million Sept. 21-30, 1949; minimum, 130 parts per mill

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Supp

samples available in district office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1, 3-10, 1948 - 

Oct 2

Oct 21 31

Dec 1 10

Dec. 21-27, 30-31 -

Jan. 1-10, 1949 

Jan. 11-14, 19-20 

Fcb 11 22

' 2}j

Mar 9.1. SI _._ _

Mean 

discharge 

(secondfeet)

128 

125 

122 

145 

156 

150 

117

130 

173 

130 

160 

119 

224 

404 

192

148 

207 

814 

497 

324 

141

Temperature

PH

7.6

7.6 

7.8 

7.8 

7.8 

7.4

7.7 

7.8 

7.8

7.8 

7.9 

7.9 

7.9

7.8 

7.4 

7.6 

7.8 

7.9 

R n

Specific 

conductance 

(micromhos at 

25° C )

3,530

4,540 

5,070 

4,230 

4,930 

5,910

5,350 

4,340 

4,760 

7,020 

5,290 

4,240 

1,910 

4,150

5,180 

4,300 

2,070 

2,480 

3,020

9 R70

Silica 

(SiQ.)

9.6

7 9

8.7 

8.4 

8.8 

8.2 

9.2

11 

9.9 

9.5 

10 

11 

12 

8.8 

9.6

10 

8.5 

7.9 

9.7 

8.6

R 7

Iron 

(Fe)

0.06

.07 

.06 

.06 

.06 

.05

.05 

.04 

.05

.05 

.05 

.29 

.04

.05 

.02 

.11 

.03 

.02 

ni

Calcium 

(Ca)

125

118 

119 

114 

132 

142

124 

110 

112 

130 

130 

118 

86 

118

126 

109 

116 

110 

116

1fl4

Magnesium 

(Mg)

59

59 

62 

57 

65 

73

63 

53 

58 

76 

64 

53 

30 

51

60 

52 

39 

48 

50

47

Sodium 

(Na)

545

782 

925 

719 

85-2 

1,050

937 

727 

794 

1, 

900 

770 

285 

700

923 

749 

298 

350 

458 

4 on

Potassium 

(K)

20

28 

.31 

28 

31 

41

39 

31 

34 

260 

35 

30 

15 

28

32 

32 

16 

17 

16

18

Bicarbonate 

(HCO3 )

174 

179 

170 

176 

192 

185 

198

208 

194 

192 

198 

222 

202 

178 

186

210 

206 

190 

186 

208

104

Sulfate 

(S04)

421 

370 

396 

396 

364 

456 

492

381 

316 

351 

440 

387 

349 

253 

342

374 

308 

347 

380 

407

Ch

rid

(C

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,

1,
Seot 13 10

ggnt 1 1 20

Weighted average -

4 390

1 927

210

134

1,148 --

3 97fi

Q09

QHO

884

9 1

13 0.07

1 ni

58

52

1 9

0 E

74

17

554

15

109

3

0

3 4

OR

7.1 146

344

C7

104 
DOLORES RIVER BASIN

DOLORES RIVER AT GATEWAY, COLO

Temperature ( ° F ) of water, April to 

Day

2

13

19

on

oo

25

29

October November December January February March A
DOLORES RIVER BASIN Continued

MISCELLANEOUS ANALYSES OF STREAMS IN DOLORES RIVER BASIN 

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

Temperature

PH

Specific 

conductance 

(micromhos at 

25' C)

Silica 

(SiO.)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Posium 

(K)

Bicarbonate 

(HCO.)

Sulfate 

(SOJ

Chlo

ride 

(Cl)

DOLORES RIVER BELOW MOUTH OF ROC CREEK NEAR URAN

SAN MIGUEL RIVER BELOW URAVAN
COLORADO RIVER BASIN

GHEEN RIVER BASIN 

GHEEN RIVER NEAR JENSEN, UTAH

LOCATION. At gaging station, 1 mile below Cub Creek and Chew Ranch, 4 miles southeast

of Dinosaur National Monument headquarters, 6j miles northeast of Jensen, Uintah

County, and 12 miles upstream from Brush Creek.

RECORDS AVAILABLE. Sediment records: May 1948 to September 1949. 

EXTREMES, 1948-49. Sediment loads: Maximum, 367,000 tons per day June 5; minimum, less

than 100 tons per day October 3. 

EXTREMES, October 1948 to September 1949. Sediment loads: Maximum, 367,000 tons per

day June 5, 1949; minimum, less than 90 tons per day (revised) on several days in

September 1948. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Vaper 1149.

Suspended sediment, water year October 1948 to September 1949

Day

2

g

12

13

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Total -

October

Mean 

discharge 

(secondfeet)

722 

700 

690 

820 

980

930 

910 

880 

880 

890

920 

948 

940 

972 

988 

988 

956 

940 

940 

972

1,040 

1,080 

1,110 

1,140 

1,120

1,090 

1,080 

1,080 

1,080 

1,060 

1,050

28,816

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.00 

I/. 01 

l/.Ol 

.01 

.01 

.01 

.04 

I/. 03

I/. 01 

.01 

I/. 01 

I/. 01 

l/.Ol 

I/. 01 

if. 01 

I/. 01 

I/. 01 

I/. 01

I/. 01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

--

Tons 

per 

day

195 

189

221 

265

251 

246 

238 

950 

721

248 

256 

254 

262 

267 

267 

258 

254 

254 

262

281 

292 

300 

308 

308

294 

292 

292 

292 

286 

284

9,090

November

Mean

charge 

(secondfeet)

1,050 

1,070 

1,090 

1,120 

1,090 

1,080 

1,080 

1,080 

972 

876

980 

924 

845 

876 

916 

1,060 

1,260 

1,330 

1,120 

956 

820 

700 

700 

760 

850

890 

840 

760 

680 

696

28,471

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

I/. 01 

I/. 01 

I/. 01 

I/. 01 

I/. 01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

I/. 01 

I/. 02 

.02 

.02 

.02 

.01 

.01 

.01 

.01 

.01

I/. 01 

I/. 01 

I/. 02 

I/. 02 

.02

--

Tons 

per 

day

284 

289 

294 

302 

294

292 

292 

292 

262 

236

265 

249 

228 

236 

247 

286 

680 

718 

605 

516

222 

189 

189 

205 

230

240 

227 

410 

367 

376

9,520

December

Mean

charge 

(secondfeet)

757 

778 

815 

908 

916 

900 

800 

860 

729 

850

972 

996 

1,030 

1,040 

1,130 

1,070 

1,070 

1,030 

932 

964

996 

1,000 

916 

792 

650

590 

570 

600 

700 

800 

850

27,011

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01 

.01 

!/. 01 

I/. 01 

I/. 01 

I/. 01

!/. 01 

I/. 01 

I/. 01 

.01 

I/. 01 

I/. 01 

.01 

.01 

.01 

.01 

I/. 01

i/.oi

I/. 01 

I/. 01

!/. 01 

I/. 01

I/. 01 

I/. 01 

l/.Ol

i/. 01 

i/.oi

Tons 

per 

day

204 

210 

220 

245 

247 

243 

216 

232 

197 

230

262 

269 

278 

281 

305 

289 

289 

278 

252 

260

260 

270 

247 

214 

176

158 

154 

162 

189 

216 

230

7,290

I/Estimated or interpolated.
DOLORES RIVER BASIN 435

GREEN RIVER BASIN Continued

GREEN RIVER NEAR JENSEN, UTAH--Continued

Suspended sediment, water year October 1948 to September 1949--Continued

Day

13

in

21

22

no

Oft

27

29

31

Totalg

13

1 ft

19

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalJanuary

Mean

charge 

(secondfeet)

800 

820 

820 

800 

720 

680 

750 

800 

870 

920

900 

850 

950 

1,050 

900

800 

650 

670 

720 

800

950 

1,050 

1,020 

1,000 

930

850 

800 

870 

920 

940 

900

26, 500

Suspended sediment

Mean 

concentration 

(percent)

1/0.01 

I/. 01 

V.OI 

I/. 01 

V.OI 

I/. 01 

I/. 01 

I/. 01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

Tons 

per 

day

216 

221 

221 

216 

194 

184 

202 

216 

235 

248

243 

230 

256 

284 

243

216 

176 

181 

194 

216

256 

284 

275 

270 

251

230 

216 

235 

248 

254 

243

7,150

April

2,330 

2,380 

2,390 

2,550 

2,750

2,930 

3,350 

4,150 

5,040 

6,740 

7,690 

6,880 

6,400 

6,910 

7,800

6,860 

5,880 

5,440 

5,820 

6,690 

7,410 

8,160 

7,940 

8,020 

9,290 

10,800 

12, 200 

12,700 

13,200 

13,800

204,500

0.08 

.10 

.08 

.07 

.11 

.16 

.19 

.27 

I/. 45 

I/. 68 

I/. 72 

.55 

.41 

.36 

.30

.30 

.22 

.20 

.19 

.16 

.21 

.21 

.20 

.18 

I/. 20 

.32 

.37 

.2.7 

.25 

.28

--

5,020 

6,430 

5,160 

4,810 

8,150

12, 700 

17, 200 

30, 200 

61,200 

124,000 

150, 000 

102, 000 

70, 800 

67, 200 

63, 200

55, 600 

34, 900 

29, 400 

29, 900 

28,900

42,000 

46,300 

42, 900 

39,000 

50, 200 

93,300 

122,000 

92, 600 

89, 100 

104, 000

1,628,000

February

Mean

charge 

(secondfeet)

930 

960 

980 

960 

950 

940 

930 

940 

960 

970

980 

1,040 

1,040 

1,020 

950

980 

1,030 

1,060 

1,030 

1,000

1,020 

1,030 

1,000 

1,000 

1,000

1,050 

1,150 

1,240

28, 140

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

I/. 01 

I/. 01 

.01 

.02 

.02

.02 

.02 

.02 

.02 

.03

.03 

.03 

.03

Tons 

per 

day

251 

259 

265 

259 

256 

254 

251 

254 

259 

262

265 

281 

281 

275 

256

265 

278 

286 

556 

540

551 

556 

540 

540 

810

850 

932 

1,000

11,630

May

14, 300 

13, 800 

11,300 

10, 500 

12, 800

14, 700 

14, 700 

12, 900 

12, 100 

11,400 

10, 900 

11, 900 

13,400 

15,000 

15, 900

16, 100 

18, 000 

19, 000 

19, 900 

20, 900

20,000 

19,400 

18,000 

17, 000 

15, 000 

14,400 

14, 500 

15, 200 

16, 000 

16, 800 

18, 100

473, 900

0.25 

.21

.If 

. 17 

.19

.20 

. 18 

.18 

.15 

.19 

.15 

.19 

V- 22 

.24 

.21

.27 

.30 

.31 

.36 

.38

.32 

.27 

.17 

.16 

. 17 

.13 

.13 

. 13 

.13 

.15 

.13

-

96, 500 

78, 200 

51,900 

48, 200 

65, 700

79, 400 

71,400 

62, 700 

49,000 

58, 500 

44, 100 

61,000 

79, 600 

97, 200 

90, 200

117,000 

146,000 

159,000 

193,000 

214,000

173,000 

141,000 

82,600 

73,400 

68, 800 

50, 500 

50, 900 

53,400 

56, 200 

68, 000 

63,500

2,744,000

March

Mean

charge 

(second - 

feet)

1,300 

1,250 

1,250 

1,300 

1,350 

1,500 

1,550 

1,600 

1,750 

1,990

2,190 

2,280 

2,250 

2,150 

2,280

2,390 

2,550 

3,160 

3,500 

3,600

3,870 

4,150 

4,150 

3,980 

3,870

3,650 

3,420 

3,270 

3,000 

2,830 

2,650

80, 030

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.03 

.03 

.03 

.05 

.06 

.05 

.06 

.06 

.06

.05 

.07 

.07 

.08 

.11

.31

.31 

.33 

.36 

.42

.48 

.40 

.39 

.40 

.29

.21 

.20 

.12 

.10 

.10 

.08

Tons 

per 

day

1,050 

1,010 

1,010 

1,050 

1,820 

2,430 

2,090 

2,590 

2,840 

3,210

2,970 

4,320 

4,270 

4,640 

6,700

20, 000 

21,400 

28, 200 

2/34, 600 

40, 800

50, 200 

44, 800 

43, 700 

42, 900 

30, 300

20, 700 

18, 500 

10, 600 

8,100 

7,640 

5,720

470, 200

June

18, 700 

18, 600 

17, 900 

17, 000 

17,300

17, 100 

16, 700 

17, 600 

17, 600 

18, 000 

18, 600 

19, 600 

20, 500 

21, 900 

22, 800

22, 300 

21, 200 

20, 500 

20, 500 

20, 400

20, 300 

20, 300 

19, 700 

18,300 

16, 500 

14,900 

13, 200 

12,400 

12, 300 

11,500

544, 200

0.13 

. 15 

.14 

I/. 10 

.75

.51 

.50 

.44 

.42 

.48 

.34 

.38 

.29 

.24 

.22

.22 

.16 

.16 

.14 

.12 

.12 

. 14 

. 13 

.15 

.10 

. 10 

.12 

.10 

.09 

I/. 09

65, 600 

75, 300 

67, 700 

45, 900 

2/367, 000 

2/235, 000 

225, 000 

209, 000 

200, 000 

233, 000 

171,000 

201,000 

161,000 

142,000 

135,000

132,000 

91, 600 

88,600 

77, 500 

66,100 

65, 800 

76, 700 

69, 100 

74, 100 

44, 600 

40, 200 

42, 800 

33, 500 

29, 900 

27, 900

3,494,000

I/Estimated Or interpolated.

2/Sediment discharge computed by subdividing day.
436 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER NEAR JENSEN, UTAH Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

2

0

is

19

OA

40

t\A

25

27

28

29

31 

Total -

July

Mean 

discharge 

(secondfeet)

10,600 

9,890 

9,320 

8,790 

8,680

9,320 

9,380 

9,650 

8,970 

8,050 

7,690 

7,300 

6,860 

6,400 

5,950 

5,550 

5,270 

4,880 

4,440 

4,210

3,970 

3,890 

3,820 

3,710 

3,460

3,250 

3,100 

2,960 

2,830 

2,700 

2,560

187,450

Suspended sediment

Mean 

concentration 

(percent)

0.09 

I/. 09 

I/. 08 

I/. 07 

I/. 07

I/. 13 

.22 

.28 

. 18 

.12 

I/. 12 

.12 

.09 

.07 

.07 

.04 

.05 

.10 

.06 

.04

.03 

.03 

I/. 03 

I/. 03 

.08

.03 

.03 

.03 

.03 

.02 

.02

~

Tons 

per 

day

25, 800 

24,000 

20, 100 

16, 600 

16,400

32, 700 

55,700 

73, 000 

43, 600 

26, 100 

24,900 

23,700 

16, 700 

12, 100 

11,200 

5,990 

7,130 

13,200 

7,180 

4,540

3,210 

3,160 

3,100 

3,000 

7,480

2,630 

2,510 

2,400 

2,290 

1,460 

1,380

493,300

August

Mean 

discharge 

(secondfeet)

2,470 

2,400 

2,330 

2,210 

2,140

2,100 

2,080 

2,050 

2,000 

1,990 

1,980 

2,140 

2,370 

2,050 

1,970 

1,880 

1,810 

1,740 

1,680 

1,610

1,530 

1,460 

1,420 

1,390 

1,340 

1,320 

1,280 

1,250 

1,270 

1,250 

1,240

55,750

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01 

.02 

.02 

I/. 05 

I/. 25 

.27 

.13 

.07 

.02 

.01

.01 

.01 

.01 

I/. 01 

I/. 01

.01 

.01 

.01 

.01 

.01 

.01

--

Tons 

per 

day

667 

648 

629 

597 

578

567 

562 

554 

540 

537 

535 

1,160 

1,270 

2,770 

13,300 

13,700 

6,340 

3,290 

907 

435

413 

394 

383 

375 

362 

356 

346 

338 

343 

338 

338

53,570

September

Mean

charge 

(secondfeet)

1,230 

1,200 

1,200 

1,140 

1,120

1,090 

1,080 

1,070 

1,070 

1,100 

1,120 

1,090 

1,150 

1,080 

1,100 

1,160 

1,220 

1,160 

1,130 

1,090

1,050 

1,010 

996 

972 

964

964 

940 

932 

1,010 

988

32,426

Suspended sediment

Mean 

concentration 

(percent)

1/0.01 

.01 

I/. 01 

I/. 01 

I/. 02

.02 

.02 

I/. 02 

I/. 02 

I/. 02 

I/. 02 

I/. 01 

I/. 01 

.01

!/. 01

I/. 01 

.01 

.01 

.01 

.02

.02 

.01 

.01 

I/. 01 

.01

I/. 01 

I/. 01 

I/. 01

y. 01

I/. 01

--

Tons 

per 

day

332

324 

324 

308 

605 

589 

583 

578 

578 

594 

605 

294 

310 

292 

297 

313 

329 

313 

305 

589

567 

273 

269 

262 

260 

260 

254 

252 

273 

267

11,400

Total discharge for year {second-foot-days) - 1,718,274 

Total load for year (tons) -. __----__ 8,939,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
GREEN RIVER BASIN Continued 

GREEN RIVER AT JENSEN, UTAH

LOCATION. At bridge on U. S. Highway 40 at Jensen, Uintah County, 13 miles below gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: March to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 867 parts per million Dec. 1-10; minimum, 224 part

- - - Maximum, 480 parts per million Dec. 1-10; minimum, 138 parts per million May 11

Total hardness: 

EXTREMES, 1947-49. Dissolved solids:s: Maximum, 867 parts per million Dec. 1-10, 1948; minimum, 16

Total hardness: Maximum, 480 parts per million, Dec. 1-10, 1948; minimum, 111 parts perjnillipn 

REMARKS. Discharge records for gaging station near Jensen for water year October 1948 to Septembe

of specific conductance of daily samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Oct. 1-10, 1948 I/ -

Nov. 1-2, 8-10 l/--

Jan. 1-10, 1949 -

Max 11 20

Mean 

discharge 

(secondfeet)

840 

1,085 

1,010 

1,027 

770

831 

738 

798 

829 

930

952 

1,013 

1,061 

1,484 

2,635 

3,593

3,461 

6,637 

10,352 

12,850 

16, 100 

1ft 7ft4

Temperature 

(°F)

pH

7.4 

7.7

7.6 

7.9 

7.8 

8.0 

7.9 

8.0

7.8 

7.9 

7.9 

7.6 

7.9 

7.8

Specific 

conductance 

(micromhos at 

25° C)

761 

750 

717 

837 

882

1,270 

791 

772 

891 

979

861 

843 

750 

761 

779 

802

843 

659 

447 

383 

379 

4flft

Silica 

(SiOa)

12 

12

12 

13 

12 

11 

14 

14

13 

14 

16 

13 

12 

12

Iron 

(Fe)

0.02 

.02

.01 

.02 

.04 

.02 

.01 

.01

.01 

.01 

.02 

.03 

.03 

. nz

Calcium 

(Ca)

52 

58 

57 

69 

73

115 

72 

70 

85 

96

80 

78 

67 

61 

64 

66

71 

56 

46 

42 

39 

S3

Magnesium 

(Mg)

25 

25 

25 

29 

30

47 

27 

26 

32 

35

30 

30 

26 

24 

22 

21

25 

21 

14 

10 

10 

15

So- podium *fs- 

(Na) -f

77 

71 

65 

74 

79

109 

63 

61 

66 

73

68 

65 

59 

70 

76 

82

79 

56 

30 

23 

27 

30

Bicarbonate 

(HCO,)

179 

186 

194 

213 

224

267 

220 

213 

228 

240

228 

222 

208 

188 

192 

195

207 

186 

165 

152 

147 

162

Sulfate 

(304)

194 

198 

175 

221 

230

419 

197 

190 

244 

282

228 

224 

178 

195 

199 

214

228 

157 

84 

57 

60 

105

Chl

rid

(Cl

36 

30 

32 

33 

38

44 

29 

29 

31 

33

32 

30 

31 

31 

33

31

30 

20 

8 

7

9

10

I/Sediment samples collected at gaging station.
GREEN RIVER BASIN--Continued

GREEN RIVER AT JENSEN, UTAH Continued

Chemical analyses, in parts per million, water year October 1948 to Septem

Date of collection

June 1-10, 1949 -

Weighted average

Mean 

discharge 

(secondfeet)

17,650 

20,830 

15,940 

9,265 

5,855 

3,295

2,177 

1,923 

1,341 

1,130 

1,130 

983

5,070

Temperature 

(°F)

PH

7.9 

7.9 

8. 2 

7.9 

7.9 

8.2

8.0 

8.1 

8.1 

7.5 

7.5 

7.4

--

Specific 

conductance 

(micromhos at 

25° C )

580 

389 

357 

496 

510 

511

590 

652 

718 

821 

843 

808

519

Silica 

(Si02)

13 

12 

12 

12 

11 

8.3

7.9 

7.9 

6.6 

7.3 

7.4 

6.2

12

Iron 

(Fe)

0.04 

.04 

.14 

.29 

.04 

.02

.02 

.02 

.04 

.03 

.02 

.03

0.05

Calcium 

(Ca)

55 

40 

44 

53 

53 

48

53 

55 

60 

64 

66 

57

51

Magnesium 

(Mg)

15 

10 

11 

15 

16 

17

20 

22 

24 

28 

28 

27

15

Sodium 

(Na)

Potassium 

(K)

47 

27 

17 

34 

34 

37

45 

55 

63 

70 

74 

80

39

Bicarbonate 

(HCO3 )

160 

136 

144 

178 

172 

170

168 

176 

180 

181 

187 

193

164

Sulfate

(SOJ

136 

72 

61 

99 

105 

103

140 

163 

191 

220 

. 232 

215

112

Chlo

ride

(CD

18 

8.

6.

12 

14 

16

20 

23 

27 

33 

31 

31

14
Temperature ( * F ) of water, water year October 

Day

g

1 9

1 Q

on

23

I)A

OQ

9Q

October November December January February March

34

35

35

0 C

35

3 5

0 C

35

35

04

35

on

on

39

on

07
GREEN RIVER BASIN--Continued

GREEN RIVER AT GREEN RIVER, UTAH

LOCATION. At gaging station, 1 mile southeast of town of Green River, Emery County, and 22 miles u

DRAINAGE AREA.--40,600 square miles. L/ruiirtAuJL AttiiA . --*±u ,uuu jaquaxe IHJ.J.^A.

RECORDS AVAILABLE. Chemical analyses: August 19?8 to September 1949.

Sediment records: May 1930 to September 1949.

EXTREMES, 1948-49.--Sediment loads: Maximum, 629,OOu tons per day June 19; minimum, 270 tons per d

EXTREMES. 1930-49.--Sediment loads: Maximum, 2,230,000 tons per day July 11, 1936; minimum, less t

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Suj ' 

samples available in regional office at Salt Lake City, Utah.

, less t

-Supply 

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Oct. 21-31 

Nov. 1-10 

Dec. 1-10 

Jan. 1-2, 6-9, 1949

Jan. 21-31 ------ 

Feb. 1-10 -----

Mar. 21-31 

Apr. 21-30 -

Mean 

discharge 

(secondfeet)

1,327 

1,445 

1,706 

1,746 

1,742 

1,731

1,310 

1,921 

1,508 

1,345 

1,665 

1,770

1,910 

1,958 

2,084 

2,465 

4,800 

6,065

4,403 

8,332 

11,155 

17,020 

19,520

PH

8.1 

8.1

8.1 

7.7

7.9 

8.1

7.9 

7.9

Specific 

conductance 

(micromhos at 

25° C )

1,140 

1,090 

1,090 

1,110 

1,140 

1,130

1,270 

1,180 

1,110 

1,210 

1,100 

1,030

1,020 

1,010 

1,040 

1,160 

1,110 

944

931 

858 

642 

488 

533 

47*

Silica 

(SiO.)

11 

11

13 

12

13 

11

14 

13

Iron 

(Fe)

Calcium 

(Ca)

82 

82

90 

89

78 

72

74 

54

Magnesium 

(Mg)

37 

42

44 

40

38 

38

27 

16

Sodium 

(Na)

Potassium 

(K)

116 

121

125 

101

95 

121

82 

39

Bicarbonate 

(HCOS)

238 

249

274 

267

248 

220

244 

199

Sulfate 

(S0«)

329 

351

363 

307

282 

342

223 

98

Chlorid

(Cl)

49 

4

5

4

4

4

2

1
29 230

5 236

2 974

8 2'

8 1 '

544

849

13

12

59

29

OQ

38

CO

198

224

91 5

1 13 
442 COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1948 to September 1949

Day

1 ......

2 

3___-_.

4 ......

5 ......

7 

8------

9 

10 

11 ......

12 .-_. 

13 

14 ......

15- 

16 .

17 

Ig-.....--

jg ___

20 

21------

22 ------

23 

24 

nc<!3------

26- .- 

27 --

no£0- -_-

29-- 

30------

31..----

Total1 ......

2 .... 

g_ _ _

4 .. .

5 ... 

6 

7 

8.-----

g ___ _

10 

11 ......

12 

13 __

14 ....._

15 

16------

17 

1 IO------ Q 

19 ...

20 

21 ... 

22 

23 

24 

25 

26 .... 

27 

28 

29 ... 

30 - 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

1,130 

1,140 

1,180 

1,180 

1,200 

1,290 

1,380 

1,590 

1,610 

1,570 

1,520 

1,430 

1,380 

1,380 

1,430 

1,430 

1,430 

1,450 

1,480 

1,520

1,520 

1,520 

1,520 

1,530 

1,570

1,610 

1,640 

2,100 

2,060 

1,870 

1,830

46,490

Suspended sediment

Mean 

concentration 

(percent)

0.06 

.02 

.02 

.03 

.01 

.02 

. 15 

.17 

.11 

.18

.13 

.19 

.21 

. 10 

.07 

.05 

.04 

.03 

.03 

.02

.02 

.02 

.02 

.02 

.02

.02 

.02 

.36 

.57 

.22 

.07

Tons 

per 

day

1,830 

616 

637 

956 

324 

697 

5,590 

7,300 

4,780 

7,630

5,340 

7,340 

7,820 

3,730 

2,700 

1,930 

1,540 

1,180 

1,200 

821

821 

821 

821 

826 

848 

869 

886 

2/22,000 

2/32, 200 

11, 100 

3,460

138, 600

January

1,250 

1,230 

1,500 

1,800 

1,700 

1,500 

1,360 

1,360 

1,370 

1,440

1,500 

1,600 

1,700 

1,900 

2,000

1,950 

1,800 

1,700 

1,400 

1,100 

1,200 

1,350 

1,650 

1,820 

2,100 

2,000 

1,950 

1,900 

1,800 

1,800 

1,900

50, 630

0.01 

.02 

.02 

.02 

.02 

.02 

.02 

.01 

.01 

.02

.01 

.05 

. 16 

.08 

.03 

.04 

.03 

.03 

.03 

.08

.06 

.04 

.02 

.02 

.02 

.01 

.01 

.01 

.01 

.02 

.02

--

338 

664 

810 

972 

918 

810 

734 

367 

370 

778

405 

2,160 

7,340 

4,100 

1,620

2,110 

1,460 

1,380 

1,130 

2,380

1,940 

1,460 

891 

983 

1,130 

540 

527 

513 

486 

972 

1,030

41,320

November

Mean 

discharge 

(secondfeet)

1,790 

1,770 

1,740 

1,720 

1,700 

1,700 

1,760 

1,770 

1,770 

1,740

1,760 

1,770 

1,760 

1,720 

1,760 

1,760 

1,660 

1,680 

1,720 

1,830

1,930 

1,960 

1,960 

1,890 

1,770

1,640 

1,550 

1,550 

1,610 

1,450

52,190

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.03 

.02 

.02 

.01 

.01 

.01 

.01 

.01 

.01

I/. 01 

I/. 01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

I/. 01

.02 

.01 

.01 

.02 

.04

--

Tons 

per 

day

1,930 

1,430 

940 

929 

459 

459 

475 

478 

478 

470

475 

478 

475 

464 

475 

475 

448 

454 

464 

494

521 

529 

529 

510 

478

886 

418 

418 

869 

1,570

19,480

February

1,900 

1,900 

1,800 

1,900 

2,000 

1,950 

1,950 

1,900 

1,950 

1,850

1,820 

1,900 

2,000 

2,050 

2,000

1,950 

1,900 

1,860 

2,000 

2,100

2,100 

2,100 

2,050 

2,020 

2,050 

2,100 

2,100 

2,150

55,350

0.02 

.02 

.02 

.01 

.01 

.02 

.01 

.02 

.02 

.02

.02 

.01 

.01 

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.04 

.06 

.03 

.04 

.05 

.08 

.08

--

1,030 

1,030 

972 

513 

540 

1,050 

527 

1,030 

1,050 

1,000

983 

513 

540 

1,110 

1,080

1,050 

1,030 

1,000 

1,080 

1,130

1,130 

2,270 

3,320 

1,640 

2,210 

2,840 

4,540 

4,640

40, 850

December

Mean

discharge 

(second - 

feet)

1,020 

1,050 

1,090 

1,270 

1,590 

1,420 

1,380 

1,370 

1,400 

1,500

1,550 

1,720 

1,870 

1,790 

1,930 

2,020 

2,240 

2,150 

1,980 

1,960

2,100 

1,870 

1,830 

1,740 

1,550

1,400 

1,350 

1,400 

1,250 

1,100 

1,000

48, 900

Suspended sediment

Mean I 

concentration 

(percent)

0.03 

.03 

.02 

-02 

.02 

.92 

.02 

.02 

.02 

.02 

.02 

.02 

.02 

.02 

.02 

.03 

.03 

.03 

.02 

.01

.01 

.01 

.01 

.01 

.02

.02 

.01 

.01 

.01 

.03 

.01

-- _

Tons 

per 

day

826 

850 

589 

691 

859 

767 

745 

740 

756 

810

837 

929 

1,000 

967 

1,040 

1,640 

1,810 

1,740 

1,070 

529

567 

505 

494 

470 

837 

756 

365 

378 

338 

891 

270

25,070

March

2,200 

2,350 

2,500 

2,520 

2,550 

2,560 

2,510 

2,510 

2,440 

2,510

2,610 

2,890 

3,160 

3,400 

4,110

4,690 

5,030 

5,810 

7,600 

8,700

7,050 

6,540 

6,800 

6,540 

6,400 

6,020 

5,640 

5,510 

5,510 

5,450 

5,250

139,360

0.09 

.11 

.16 

.15 

.18 

.16 

.15 

.15 

.10 

.07

.07 

.07 

.08 

.10 

.14

.18 

.20 

.24 

.58 

.69

.48 

.47 

.40 

.39 

.38 

.36 

.33 

.32 

.29 

.22 

. 16

--

5,350 

6,980 

10, 800 

10, 200 

12,400 

11, 100 

10, 200 

10, 200 

6,590 

4,740

4,930 

5,460 

6,830 

9,180 

15, 500

22, 800 

27, 200 

37,600 

2/121,000 

2/164,000

91,400 

83. 000 

73,400 

68, 900 

65, 700 

58, 500 

50,200 

47,600 

43,100 

32,400 

22,700

1,140,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
DOLORES RIVER BASIN

GREEN RIVER BASIN Continued 

GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

2

12

22

24

07

OQ

29

Total2

13

24 

25- -----

26 

27 

28 

29 

30- 

31 

TotalApril

Mean

charge 

(secondfeet)

4,870 

4,470 

4,260 

4,000 

3,910 

3,910 

4,110 

4,500 

4,780 

5,220

6,360 

8,220 

9,580 

8,950 

8,260 

8,340 

9,070 

8,950 

8,060 

7,530

7,450 

8,100 

9,070 

9,830 

10, 100

10,300 

11,700 

13, 600 

15,200 

16, 200

238, 900

Suspended sediment

Mean 

concentration 

(percent)

0.15 

.14 

. 11 

.10 

.09 

.08 

.08 

.1} 

. 15 

.21

.27 

.39 

.59 

.55 

.56 

.46 

.36 

.46 

.34 

. 28 

.24 

.23 

.26 

.28 

.34

.29 

.39 

.47 

.54 

.55

--

Tons 

per 

day

19, 700 

16,900 

12, 700 

10, 800 

9,500 

8,450 

8,880 

13,400 

19,400 

29, 600

46, 400 

86, 600 

153, 000 

133,000 

125,000 

104, 000 

88, 200 

111,000 

74, 000 

56, 900

48,300 

50, 300 

63, 700 

74, 300 

92, 700

80, 600 

123,000 

173,000 

222,000 

241,000

2,296,000

July

16, 600 

15, 300 

14,800 

15, 200 

16, 200

16, 100 

15,500 

14, 500 

13, 600 

12, 800 

12, 200 

11,200 

10,400 

9,700 

9,110 

8,540 

7,950 

7,380 

7,080 

6,760 

6,300 

5,950 

5,610 

5,450 

5,680 

5,580 

5,380 

4,840 

4,500 

4,230 

4,080

298,520

0. 18 

.14 

.41 

.40 

1.04

1.03 

.78 

.88 

.54 

.34 

.37 

.32 

.30 

.23 

.24 

.20 

.14 

. 12 

.09 

.07 

.06 

.07 

.08 

.07 

.48

.19 

.15 

. 15 

.20 

.12 

.08

--

80, 700 

57, 800 

2/167,000 

2/169,000 

2/458,000

2/449,000 

326,000 

345,000 

198,000 

118,000 

122,000 

96, 800 

84, 200 

60, 200 

59, 000

46, 100 

30, 100 

21,300 

17, 200 

12, 800 

10, 200 

11,300 

12, 100 

10,300 

2/74,800 

28, 600 

21,800 

19, 600 

24, 300 

13, 700 

8,800

3,154,000

Total discharge for year (second-foot-day 

Total load for year (tons) 

May

Mean

charge 

(secondfeet)

17,000 

17, 900 

17, 900 

16, 200 

14,400 

15,200 

18, 400 

19,800 

17,800 

15, 600

14, 700 

14, 300 

14, 600 

16,100 

18,200 

20,400 

21,800 

23,300 

25,400 

26,400

26,500 

26,000 

25, 000 

23,600 

21,900

20, 500 

19, 600 

20,200 

21,700 

22,200 

23, 100

615j 700

Suspended sediment

Mean 

concentration 

(percent)

0.49 

.47 

.44 

.42 

.30 

.33 

.49 

.51 

.45 

.33

.26 

.35 

.33 

.46 

.45 

.39 

.42 

.40 

.43 

.54

.52 

.50 

.48 

.41 

.38

.33 

.31 

.27 

.42 

.42 

.29

--

Tons 

per 

day

225, 000 

227,000 

213,000 

184, 000 

117,000 

135,000 

243, 000 

273,000 

216,000 

139,000

103,000 

135,000 

130,000 

200, 000 

221,000 

215,000 

247,000 

252, 000 

295, 000 

385,000

372, 000 

351,000 

324, 000 

261,000 

225,000

183, 000 

164, 000 

147, 000 

246,000 

252, 000 

181,000

6,861,000

August

3,850 

3,680 

3,510 

3,400 

3,240

3,160 

3,050 

2,970 

3,290 

3,130 

3,630 

3,370 

3,070 

2,970 

2,860 

3,070 

2,940 

2,710 

2,610 

2,510 

2,420 

2,370 

2,280 

2,240 

2,190

2,240 

2,150 

2,080 

2,020 

1,890 

1,850

86, 750

0.05 

.04 

.04 

.03 

.03

.11 

.04 

.04 

.25 

.32 

.19 

. 11 

.28 

.28 

.33 

. 12 

.06 

.04 

.03 

.02 

.04 

.07 

.08 

.06 

.04

.07 

.13 

.05 

.03 

.03 

.03

--

5,200 

3,970 

3,790 

2,750 

2,620

9,400 

3,290 

.3, 210 

22,200 

27,000 

18, 600 

10, 000 

23,200 

22,500 

25,500

9,950 

4,760 

2,930 

2,110 

1,350 

3,150 

4,480 

4,920 

3,630 

2,360

4,230 

7,550 

2,810 

1,640 

1,530 

1,500

242, 100

June

Mean

charge 

(secondfeet)

24, 000 

24, 700 

24, 300 

24,000 

23,500 

22,400 

23, 000 

22,900 

22, 700 

23, 000

24, 000 

25,800 

28,000 

29,600 

30,300 

30, 600 

30, 400 

30, 500 

31,500 

31,600

32,700 

31,900 

30, 100 

28, 700 

26,900 

24,400 

22, 000 

20,300 

18,600 

17,400

779, 800

Suspended sediment

Mean 

concentration 

(percent)

0.28 

.25 

.26 

.34 

.47 

.68 

.50 

.74 

.57 

.44

.57 

.59 

.63 

.51 

.45 

.30 

.28 

.42 

.73 

.61

.27 

.24 

.24 

.21 

.21

.22 

.23 

.21 

.24 

.20

Tons 

per 

day

181,000 

167,000 

171,000 

220, 000 

2/298, 000 

2/417, 000 

311,000 

458, 000 

349,000 

273, 000

369, 000 

2/417,000 

476, 000 

2/409, 000 

368,000 

248,000 

230, 000 

2/351,000 

2/629,000 

520, 000 

238,000 

207, 000 

195,000 

163, 000 

153,000

145,000 

137,000 

115,000 

121,000 

94,000

8,430,000

September

1,810 

1,870 

1,870 

1,870 

1,830

1,810 

1,810 

1,760 

1,740 

1,740 

1,720 

1,790 

1,910 

2,130 

2,020 

1,960 

1,910 

1,890 

1,850 

1,850 

1,850 

1,830 

1,770 

1,760 

1,740

1,700 

1,660 

1,640 

2,660 

2,400

56, 150

0.07 

.07 

.03 

.03 

.07

.03 

.03 

.02 

.01 

.01 

.02 

.07 

.15 

.11 

.05

.05 

I/. 05 

.10 

.05 

.03 

.03 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.61 

1.03

--

S) - _ . .

3,420 

3,530 

1,510 

1,510 

3,460

1,470 

1,470 

950 

470 

470 

929 

3,380 

7,730 

6,330 

2,730 

2,650 

2,580 

5,100 

2,500 

1,500 

1,500 

988 

478 

478 

469

459 

448 

443 

2/55, 200 

2/67, 500

181,700

2,468,740 

22,570,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
GREEN RIVER BASIN Continued 

PRICE RIVER AT WOODSIDE, UTAH

LOCATION. At gaging station at bridge on U. S. Highway 50 at Woodside, 20 miles upstream from mout

DRAINAGE AREA.--1,500 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1946 to September 1949.

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 13, 21, 1948 

Jan. 11, 21, 28, 1949

Mar. 4, 8, 11, 18,

May 4, 11, 16, 25 

Mean 

discharge 

(secondfeet)

15 

219 

31.7 

28.0 

30.3 

43.3

185 

234 

266 

159 

132 

404 

63 

102 

38.3

Temperature 

(°F)

49

PH

Specific 

conductance 

(micromhos at 

25° C )

6,490 

3,200 

6,490 

5,460 

4,510 

4,320

3,410 

1,450 

1,360 

2,170 

2,840 

1,650 

4,120 

3,680 

4,300

Silica 

(Si02)

6.7 

14 

9.0 

10 

11 

9.1

11 

13

16 

12 

15 

7.8 

15 

7.2

Iron

(Fe)

Calcium 

(Ca)

320 

354 

312 

284 

260 

250

184 

99

129 

184 

108 

209 

275 

216

Magnesium 

(Mg)

330 

109 

324 

281 

228 

212

147 

65

97 

124 

52 

184 

159 

197

Sodium 

(Na)

Potassium 

(K)

1,060 

362 

1,060 

812 

656 

625

483 

144

255 

359 

207 

604 

487 

648

Bicarbonate 

(HCO,)

267 

238 

391 

440 

439 

396

309 

288 

302 

310 

274 

262 

250 

312 

300

Sulfate 

(S04)

3,890 

1,790 

3,750 

2,990 

2,430 

2,310

1,710 

537 

432 

933 

1,400 

649 

2,200 

1,980 

2,310

Chloride 

(Cl)

12

4

12

102 

7

8

5

222 

22

32 

4

30 

67 

5

74
GREEN RIVER BASIN--Continued 

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH

LOCATION.--At bridge just above gaging station on State Highway 24, 15 miles southwest of Green Rive

DRAINAGE AREA. 1,690 square miles.

RECORDS AVAILABLE. Chemical analyses: November 1946 to September 1949.

Water temperatures: July to September 1949.

Sediment records: March 1948 to September 1949 (discontinued).sediment records: Marcn i»4» to septemoer i»4» ^discontinued;.

EXTREMES, 1948-49.--Dissolved solids: Maximum, 5,250 parts per million Oct. 10, 14, 21; minimum, 7 

Total hardness: Maximum, 2,130 parts per million Oct. 10, 14, 21; minimum, 420 parts per million 

Sediment loads: Maximum, 170,000 tons per day Aug. 10; minimum, 0 tons per day Oct. 1-3.

E17fTO171fTlC! 1 QAC An T\lemr*T,,r*^ n^Tj^r*. Un v-;«..iM £ flKft ~~nvi4-r-. ~ «.4114n« r\*»4- 1A 1 A O1 1QAQ. m 4 n 4 i

7

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Oct. 10, 14, 21, 1948 

Nov. 3, 18, 26 

Dec. 3, 16-17, 19-20 

Jan. 12, 17-18, 1949 

Jan. 21-22, 28, 30-31

Foh 11 10

Feb. 21, 27-28 

Mar. 1-3, 5, 9-10 

June 1-3, 7-8, 10 

July 21-23, 26-27, 29

Mean 

discharge 

(secondfeet)

10.6 

31.3 

36.4 

28 

37.4

39 

39.8 

57.7 

198 

132 

76.5

70.9 

138 

292 

392 

534 

596

695 

1,316 

556 

495 

118 

66

Temperature 

(°F)

PH

7.7 

7.7 

7.6

7.7 

7.7 

7.9 

7.9 

7.7 

7.7

7.6 

7.5 

7.8 

7.8 

7.8 

7.8

7.7 

7.8 

8.0 

7.2 

7.3 

7.5

Specific 

conductance 

(micromhos at 

25° C )

5,800 

4,940 

3,880 

3,570 

3,950

3,560 

3,250 

2,490 

2,670 

3,430 

3,420

3,650 

2,500 

1,560 

1,180 

1,430 

1,230

1,390 

1,050 

1,440 

2,210 

3,140 

3,360

Silica 

(SiOa)

6:8 

10 

12 

15 

12

13 

12 

9.6 

9.1 

11 

10

11 

11 

9.8 

7.9 

8.6 

7.8

10 

10 

10 

13 

13 

10

Iron 

(Fe)

0.04 

.03 

.02

.02 

.02 

.04 

.04 

.04 

.04

.02 

.01 

.03 

.03 

.03 

.01

.00 

.14 

.03

Calcium 

(Ca)

420 

328 

296 

264 

346

266 

264 

184 

200 

244 

232

256 

172 

128 

116 

120 

116

107 

94 

116 

228 

252 

224

Magnesium 

(Mg)

263 

228 

184 

174 

192

177 

157 

117 

116 

156 

168

170 

116 

73 

61 

66 

73

60 

45 

67 

88 

136 

160

Sodium 

(Na)

8 

6 

461 

429 

366

415 

358 

259 

300 

445 

413

458 

277 

129 

78 

123 

43

115 

76 

138 

205 

374 

420

Potassium 

<K)

57 

96 

18 

12 

13

11 

9.6 

8.4 

9.6 

9.5 

8.2

9.0 

7.4 

5.1 

4.0 

5.6 

5.3

3.8 

3.8 

4.0 

11 

9.2 

9.6

Bicarbonate 

(HCO,)

296 

354 

386 

348 

264

410 

424 

262 

270 

290 

286

274 

292 

271 

265 

262 

266

264 

232 

264 

238 

224 

236

Sulfate 

(SOJ

3,440 

2,750 

2,020 

1,870 

2,070

1,810 

1,600 

1,190 

1,300 

1,840 

1,790

1,940 

1,170 

627 

454 

579 

431

511 

369 

606 

1,110 

1,690 

1,800

Chloride 

(CD

12

8

6

6

6

6

5

4

4

5

5

6

4

2

1

1

1

1

1

1

2

4

5
GREEN RIVER BASIN--Continued

SAN HAFAEL RIVER NEAR GREEN RIVER, UTAH Continue

Chemical analyses, in parts per million, water year October 1948 to September 

Date of collection

Aug. 1-9, 1949 - 

Weighted average -

Mean 

discharge 

(secondfeet)

47.1 

1,200 

46 

31.4 

33.4 

63.8 

31.0

245

Temperature 

<°F)

PH

7.7

7.8 

7.8 

7.9 

7.7 

7.7

-

Specific 

conductance 

(micromhos at 

25° C)

4,170

3,600 

4,520 

4,860 

4,240 

4,850

1,760

Silica 

(Si02)

6.4

14 

9.9 

7.5 

15 

6.6

9.9

Iron 

(Fe)

-

0.05 

.05 

.03 

.04

.17

0.06

Calcium 

(Ca)

276

312 

304 

332 

428 

360

148

Magnesium 

(Mg)

199

146 

209 

229 

165 

226

81

Sodium 

(Na)

548

416 

618 

653 

490 

638

166

Potassium 

(K)

16

10 

12 

12 

14 

14

6.1

Bicarbonate 

(HCO,)

228

224 

238 

250 

245 

253

256

Sulfate 

(S04)

2,340

1,960 

2,570 

2,760 

2,410 

2,790

794

Chloride 

(Cl)

68

50 

75 

90 

85 

85

24
Temperature (° F ) of water, July to Se

Day

22

24

25

27

28

verage

October November December January February March Ap
COLORADO RIVER BASIN

GREEN RIVER BASIN Continued

SAN RAFAEL RIVER NEAR GREEN RIVER, UTAH Continued 

Suspended sediment, water year October 1948 to September 1949

Day

2

12

20

21

24

27

28

30

Total2

g

g

12

13

19

20 

21 

22 

23 

24 

25 

26 

27 

28 

29------ 

30 

31 

Total -

October

Mean

charge 

(secondfeet)

0 

0 

0 

.1 

1.8

2.8 

3.6 

11 

11 

9.8

9 3 

9^8 

10 

10 

11

9 3 

8.4 

8.8 

11 

11 

12 

14 

14 

15 

15

13 

14 

57 

50 

46 

44

432.7

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02

.01

--

Tons 

per 

day

1/420

January

28

35 

39

969

0.04 

.02

.03 

.18 

.03

.02 

.02 

.02 

.03

f .04 

1 .03

.03 

.03 

.03 

.02

 2/23

I 2/28 

\ 2/32

792

November

Mean

charge 

(second - 

feet)

33 

33 

32 

30 

30

31 

30 

26 

27 

27 

25 

26 

32 

31 

30 

34 

34 

28 

27 

26 

25 

26 

28 

30 

34

34 

19 

23 

26 

30

867

Suspended sediment

Mean 

concentration 

(percent)

0.06

.06 

.05

Tons 

per 

day

1/1,170

February

39

41

44 

48 

52 

55 

58 

62 

70

1,220

0.05 

.02 

.02 

.02

.02

.03 

.03 

.04 

.03 

.02 

.03 

.02

.02

.02 

.03

--

, 2/29

 1/28

i/36

33

57

873

December

Mean

charge 

(second - 

feet)

30

38 

> 33

1,068

Suspended sediment

Mean 

concentration 

(percent)

0.06

.02 

.05

.04 

.03

.06 

.05

.01

Tons 

per 

day

1/1,150

March

( 85 

115 

200 

270 

300

270 

290 

300 

280 

210 

180 

190 

141 

143 

I 114 

f 114 

126 

1 107 

i 102 

100

I 107 

f 96 

86 

J 89 

1 68 

I 65 

63 

60 

65 

71 

71

4,478

0. 14 

. 17 

.11 

I/. 42 

.72

I/. 70 

I/. 70 

I/. 72 

.68 

.65 

.57 

I/. 35 

.32 

.46 

.37 

.37 

.33 

.28 

.40 

.32

.30 

.22 

.21 

.17 

. 14 

.14 

!/. 12 

!/. 09 

.08 

.09 

.09

321 

528 

594 

3,060 

5,840

5, 100 

5,480 

5,880 

5,140 

3,690 

2,770 

2,820 

1,220 

1,780 

1,140 

1,140 

1,120 

809 

1,100 

864

867 

570 

488 

408 

257 

246 

204 

146 

140 

173 

173

54,020

I/Estimated or interpolated.

2/Includes estimated loads for missing days.
DOLORES RIVER BASIN

GREEN RIVER BASIN--Continued

SAN RAFAEL RIVER NEAR GREEN RIVER UTAH--Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

g

g

13

19

20

21

24

25

no

29

Total2

g

12

13

i fi

23

24 

25 

26 

27 

28 

29 

30 

31- 

TotalApril

Mean 

discharge 

(secondfeet)

72 

100 

98 

68 

56 

55 

52 

61 

70 

77 

89 

107 

118 

137 

143

126 

128 

150 

178 

206

219 

206 

222 

266 

266

281 

285 

333 

404 

433

5,006

Suspended sediment

Mean 

concentration 

(percent)

0.09 

.25 

.40 

.32 

.24

.18 

I/. 17 

. 19 

.25 

I/. 26 

.26 

.30 

.41 

.56 

.66

.46 

.31 

I/. 66 

.81 

.82 

.65 

.52 

.61 

I/. 72 

.71

.66 

.70 

.80 

.96 

.92

Tons 

per 

day

175 

675 

1,060 

588 

363 

269 

239 

313 

472 

540 

625 

867 

1,310 

2,070 

2,550

1,560 

1,070 

4,670 

3,890 

4,560

3,840 

2,890 

3,660 

5,170 

5,100

5,010 

5,390 

7,190 

10,500 

10,800

85,420

July

225 

222 

186 

875 

1,010 

1,000 

820 

263 

178 

167 

249 

132 

139 

111 

88

83 

132 

86 

82 

83

72 

58 

55 

57 

80 

83 

68 

57 

57 

50 

46

6,814

1/0.12 

.11 

.08 

1/2.4 

3.65 

4.60 

3.00 

1.50 

.80 

I/. 80 

1/1.65 

1.95 

.75 

.18 

.16 

.08 

.06 

.09 

.20 

.22

. 16 

.08 

.06 

I/. 08 

I/. 07 

.08 

. 10 

I/. 12 

.07 

I/. 05 

I/. 04

-

729 

659 

402 

3/85,400 

99,500 

3/160,000 

2/79, 500 

10,600 

3,840 

3,610

11,100 

6,950 

2,810 

543 

380

179 

214 

209 

443 

493

311 

125 

89 

123 

151 

179 

184 

185 

108 

68 

50

469, 100

May

Mean

charge 

(secondfeet)

494 

308 

368 

453 

453 

368 

274 

235 

213 

197 

263 

400 

546 

526 

500

619 

665 

636 

683 

500

430 

375 

325 

292 

292

665 

796 

826 

814 

880 

856

15,252

Suspended sediment

Mean 

concentration 

(percent)

0.78 

I/. 64 

.65 

.94 

.87 

.70 

.39 

. 14 

I/. 19 

.22 

.66 

1/1-04 

1. 13 

.84 

.46

.92 

.82 

I/. 51 

I/. 50 

.32 

.25 

.30 

.26 

.27 

.35

.58 

.67 

.92 

.67 

.57 

.56

--

Tons 

per 

day

10,300 

5,320 

6,460 

11,500 

10,600

6,960 

2,880 

888 

1,090 

1,170 

4,690 

11,200 

16,600 

11,900 

6,210

15,400 

14, 700 

8,760 

9,220 

4,320

2,900 

3,040 

2,280 

2,130 

2,760

10,400 

14,400 

20,500 

14, 700 

13,500 

12, 900

259,700

August

41 

34 

38 

33 

26 

26 

26 

26 

174 

1,200

141 

43 

29 

36 

26

31 

40 

39 

39 

36

32 

27 

24 

25 

26 

44 

53 

39 

29 

24 

22

2,429

0.03 

I/. 04 

.08 

.05 

.03 

.02 

.02 

.02 

.81 

4.60

3.35 

1.75 

1.01 

.65 

.25

.09 

.08 

.06 

.05 

.04

.04 

.03 

.03 

.03 

.04 

. 12 

.13 

.06 

.04 

.03 

.02

-

33 

37 

82 

44 

21 

14 

14 

14 

375,370 

3/1 70,000 

12,800 

2,030 

791 

632 

176 

75 

86 

63 

53 

39

35 

22 

19 

20 

28 

143 

186 

63 

31 

19 

12

193,000

June

Mean

charge 

(secondfeet)

748 

636 

494 

626 

1,080

742 

856 

596 

796 

838 

1,100 

1,350 

,470 

,450 

,260

,060 

,080 

,190 

,690 

1,510

1,040 

862 

718 

636 

546

473 

400 

359 

289 

235

26, 130

Suspended sediment

Mean 

concentration 

(percent)

0.39 

.44 

.33 

I/. 52 

1.55

I/- 55 

1.61 

.77 

I/. 78 

.66 

.70 

1.10 

1.12 

1.02 

.88

I/. 70 

.64 

.66 

1.90 

1.90

1/-75 

.55 

.37 

.28 

.22

I/. 17 

.21 

.14 

.20 

.17

Tons 

per 

day

7,880 

7,560 

4,400 

3/12,600 

45,200

11,000 

37,200 

12, 400 

16, 800 

14, 900 

20, 800 

40, 100 

44, 500 

39,900 

29, 900

20, 000 

18, 700 

21, 200 

3/102, 000 

77, 500 

21, 100 

12, 800 

7,170 

4,810 

3,240

2,170 

2,270 

1,360 

1,560 

1,080

642, 100

September

20 

17 

14 

14 

20 

16 

13 

13 

15 

192

267 

128 

76 

36 

26 

30 

26 

19 

17 

13

11 

11 

7.2 

7.2 

8.4 

8.4 

6. 1 

9.3 

147 

94

1,281.6

1/0.02 

.02 

.01 

I/- 01 

.01 

.01 

.02 

.02 

.02 

.91

1/2.6 

2.00 

1.80 

.90 

.75 

.55 

.06 

.04 

.03 

.03

I/. 03 

.06 

. 03 

.02 

I/. 03 

.04 

.01 

.01 

.75 

.61

--

11 

9 

4 

4 

5 

4 

7 

7 

8 

3/21,500

3720, ooo

6,920 

3,690 

875 

526

446 

42 

21 

14 

11

9 

18 

6 

4 

7 

9 

2 

3 

3/3, 890 

1,550

59, 600

Total discharge for year (second-foot-days) _ __ _ ...._. __ _ ------- __ - --- ea, im. 3 

Total load for year (tons) 1,767,000

I/Estimated or interpolated.

2/Includes estimated loads for missing days.

J/Sediment discharge computed by subdividing day.
GREEN RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN GREEN RIVER BAS

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

Temperature

PH

Specific 

conductance 

(micromhos at 

25° C)

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(SO,)

Chlo

ride 

(Cl)

BRUSH CREEK NEAR JENSEN

Apr.

6 1948

8 1949 U, J.01J7

8 1949

'

3

n

OD

 ".

AQ19

o"'

ID T:

192 1 30 

110 39

52 

38

209 513 

219 312

ASHLEY CREEK NEAR JENSEN

328 1 225 1 197 1 320 1 l,78o[ 

238 1 153 1 150 1 316 j l,19o| 
DIRTY DEVIL RIVER BASIN 

DIRTY DEVIL RIVER NEAR HITE, UTAH

LOCATION. Samples collected near mouth or from a cable about 1 mile above mouth and 1.6 miles down

Sampling points reached by boat ride of about 10 miles from Hite. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Water temperatures: Hay to September 1949. 

EXTREMES, 1948-49. Dissolved solids: " ' ""

Total h 

EXTREMES,

Total

REMARKS. ~P 

distr

Chemicaf analyses, In parts per million, water year October 1948 to Se

Date of collection

Oct. 1-10, 1948 -

Dec. 21-22, 24-31 

Jan. 1-13, 1949 -

!ufc,,7 91 _ )! _ _ __ ...

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

65 

in

PH

7.5 

7.6 

7.6 

7.8 

7.8 

7.8

7.8 

7.1 

7.5

7.7 

7.8 

7.7

7.8 

7.9 

7.9 

7.7 

7.7 

7.8

7.8 

7.8 

7.8 

7.8 

7.9 

1 S

Specific 

conductance 

(micromhos at 

25° C )

2,760 

2,480 

2,250 

2,660 

2,110 

1,990

1,970 

1,930 

2,090 

1,290 

2,400 

1,510 

1,530

1,710 

1,400 

1,380 

2,710 

2,350 

1,900

2,860 

2,020 

1,730 

1,900 

2,260 

9 Hfin

Silica 

(S102)

20 

22 

19 

22 

22 

23

24 

26 

26 

21 

35 

28 

28

31 

28 

24 

18 

22 

21

24 

25 

23 

23 

21 

25

Iron 

(Fe)

0.06 

.06 

.08 

.07 

.09 

.07

.07 

.05 

.04

.06 

.04 

.04

.06 

.05 

.08 

.08 

.07 

.09

.09 

.08 

.09 

.12 

.10 

.n«

Calcium 

(Ca)

512 

456 

412 

328 

328 

292

300 

290 

274 

180 

308 

202 

203

216 

184 

188 

380 

296 

218

380 

246 

220 

220 

236 

292

Magnesium 

(Mg)

60 

59 

52 

52 

52 

52

52 

46 

52 

32 

65 

41 

40

47 

35 

30 

46 

46 

42

59 

51 

43 

49 

61 

R1

Sodium 

(Na)

137 

115 

111 

301 

121 

122

113 

119 

143 

6 

180 

77 

87

107 

80 

82 

238 

215 

169

249 

160 

124 

155 

205 

27fi

Potassium 

(K)

9.2 

6.4 

7.2 

6.4 

6.0 

6.8

7.2 

8.8 

9.6 

7 

12 

7.6 

8.4

4.8 

7.6 

4.4 

6.4 

5.2 

4.8

11 

8.8 

8.0 

7.6 

7.6 

in

Bicarbonate 

(HC03 )

174 

164 

177 

175 

186 

196

208 

182 

214 

166 

260 

212 

202

204 

180 

168 

176 

180 

174

184 

182 

172 

176 

178 

107.

Sulfate 

(S0«)

1,460 

1,300 

1,170 

1,270 

933 

841

848 

853 

782 

472 

900 

£50 

553

607 

509 

508 

1,210 

1,010 

744

1,330 

827 

707 

751 

867 

1 14(1

Chl

rid

(Cl

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

2
DIRTY DEVIL RIVER BASIN Continued 

DIRTY DEVIL RIVER NEAR KITE, UTAH Continued

Chemical analyses, in parts per million, water year October 1948 to Septemb

Date of collection

June 1-10, 1949 -

Weighted averageMean 

discharge 

(secondfeet)

Temture 

(°F)

--

PH

7.5 

7.5 

7.7 

7.3 

7.4 

7.6

7.4 

7.5 

7.5 

7.8 

7.7 

7.6

"

Specific 

conductance 

(micromhos at 

25° C )

3,440 

2,540 

3,040 

3,300 

3,470 

3,710

3,360 

5,090 

4,060 

3,550 

2,870 

2,570

2,440

Silica 

(Si02)

24 

38 

22 

26 

24 

28

27 

22 

25 

25 

21 

21

24

Iron

(Fe)

0.17 

.08 

.08 

.10 

.25 

.11

.32 

.13 

.10 

.13 

.45 

.07

0.09

Calcium 

(Ca)

380 

340 

468 

520 

568 

500

432 

620 

584 

600 

504 

408

338

Magnesium 

(Mg)

88 

59 

68 

80 

80 

95

89 

137 

113 

88 

71 

66

56

Sodium

(Na)

364 

212 

228 

250 

245 

317

284 

526 

342 

221 

148 

154

192

Potassium 

(K)

13 

10 

10 

6.0 

15 

14

19 

26 

18 

19 

13 

10

8.4

Bicarbonate 

(HCO3 )

204 

176 

130 

208 

196 

224

254 

282 

274 

140 

178 

186

185

Sulfate 

(SO,)

1,540 

1,200 

1,570 

1,720 

1,770 

1,630

1,380 

2,220 

1,970 

1,870 

1,510 

1,260

1,100

Chlo

ride 

(Cl)

24

12

15

15

20

32

31

52

29

21

11

12

14
Temperature ( ° F ) of water, May to S

Day

Q

12

22

91

29

verage

October November December January February March A
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN 

SAN JUAN RIVER AT ROSA, N. MEX.

LOCATION. At gaging station about 75 feet upstream from highway bridge, a quarter of a

mile downstream from Piedra River, and 1 mile north of Rosa, Rio Arriba County. 

DRAINAGE AREA. 1,990 square miles. 

RECORDS AVAILABLE. Water temperatures: March to September 1949.

Sediment records: March to September 1949. 

EXTREMES, 1948-49.--Water temperatures: Maximum, 70°F July 27, Aug. 18; minimum,

38*F Mar. 29. 

Sediment loads: Maximum, 77,400 tons per day Apr. 13 ; minimum, less than 30 tons per

day on many days. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in

Water-Supply Paper 1149.

Temperature (°F) of water, March to September 1949 

[Once-daily temperature measurement between 7 and 8 a. m]|

Day

1 

2 -

3 

4 ....

5 

6 

7 

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

Mar.

..

--

__

"

_

__

_

1/47 ^ 

_

1/41

1/46

1/49

1/38

1/39

Apr.

1/39

1/40

1/44

42

1/58

1/55

1/49

49

41

45

44

43

43

42

42

44

45

48

43

44

43

44

43

44

44

46

44

45

48

47

45

May

43

44

49

45

45

45

43

38

45

50

45

47

44

48

51

48

46

48

47

50

45

49

47

51

49

52

50

48

52

47

47

47

June

51

49

50

50

51

52

49

50

52

53

48

50

50

49

50

51

50

51

49

50

50

54

58

54

51

57

53

54

54

56

52

July

60

64

65

59

60

59

60

59

1/65

60

58

63

60

59

65

60

63

63

63

61

62

60

62

60

63

62

70

60

60

62

61

62

Aug.

62

63

61

64

62

62

62

63

61

62

62

62

65

60

58

60

62

70

62

60

62

61

64

60

63

60

60

62

60

61

64

62

Sept.

63

64

64

65

58

60

60

60

62

64

60

59

59

58

60

60

59

60

61

62

59

57

58

58

56

54

57

57

64

60

Suspended sediment, Marchto September 1949

I/Reading obtained between noon and 7:30 p. m.

Day

1 ...... 

2 

3 ......

4 -

5 ......

6 

7... ... 

8 ......

9 ...... 

10 

11 ......

12 

13 

14 ......

15 

16 

17 ......

18 

19 

20 

21 .

22 

23 

24 

25 

26 

27 

28 

29 

30- 

31 

TotalMarch

Mean 

discharge 

(secondfeet)

--

--

--

--

--

_

_

._

_

--

..

_

_

_

--

..

_

__

_

614

563

549

761

901

642

536

20, 957

Suspended sediment

Mean 

concentration 

(percent)

--

--

"

._

__

_

_

--

_

_

._

__

--

..

_

_

_

0.04

.03

.09

I/. 09

.09

.09

I/. 08

Tons 

per 

day

--

"

--

_

_

_

_

..

_.

_

_

--

._

_

_

_

663

456

1,330

1,850

2,190

1,560

1,160

9,210

I/Estimated or interpolated.
SAN JUAN RIVER BASIN 455

SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER AT ROSA, N. HEX. Continued 

Suspended sediment, March to September 1949 Continued

Day

13

19

nr\

I\A

27

AO

9Q

31 

Total2

20

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

638 

536 

514 

766 

981 

1,450 

1,840 

2,620 

2,230 

1,950

1,840 

2,550 

3,150 

3,400 

3,320'

3,320 

3,860 

4,360 

3,760 

3,670

3,580 

4,250 

5,020 

5,250 

5,370 

5,620 

4,900 

4,250 

4,900 

5,020

94,915

Suspended sediment

Mean 

concentration 

(percent)

0.06 

.06 

.06 

.32 

.53 

.58 

.62 

.87 

.52 

.23

.20 

.66 

.91 

.45 

.33

.21 

.24 

.23 

.11 

.11 

.08 

.27 

.21 

.15 

.13 

.14 

.07 

.04 

.08 

.06

Tons 

per 

day

1,030 

868 

833 

6,620 

14, 000 

22,700 

30, 800 

61, 500 

31,300 

12, 100

9,940 

45, 400 

77, 400 

41,300 

29, 600

18, 800 

25, 000 

27, 100 

11,200 

10,900 

7,730 

31, 000 

28, 500 

21,300 

18, 800 

21,200 

9,260 

4,590 

10, 600 

8,130

639, 500

July

4,250 

4,150 

3,960 

3,670 

3,400

3,070 

3,490 

2,990 

2,620 

2,840

3,320 

2,990 

2,620 

2,420 

2,230 

1,900 

1,740 

1,640 

1,500 

1,450

1,410 

1,250 

1,450 

1,900 

2,000 

1,740 

1,410 

1,210 

1,030 

901 

840

71.391

0.02 

.02 

.02 

.02 

.02

.01 

.04 

.01 

.01 

.04

.31

.10 

.04 

.02 

.02 

.01 

.01 

.01 

.01 

0

.01 

.12 

.26 

.26 

.47 

.08 

.02 

.01 

0 

.01 

0

-

2,300 

2,240 

2,140 

1,980 

1,840 

829 

3,770 

807 

707 

3,070

27, 800 

8,070 

2,830 

1,310 

1,200 

513 

470 

443 

405 

0 

381 

4,050 

10, 200 

13,300 

25,400 

3,760 

761 

327 

0 

243 

0

121,100

May

Mean

charge 

(secondfeet)

4,360 

4,360 

5,130 

5,020 

4,150 

3,860 

3,400 

2,990 

2, 920 

3,49a

5,020 

5,250 

4,900 

4,360 

5,130

5,500 

4,790 

4,360 

3,860 

3,760 

3,240 

3,070 

3,150 

3,670 

4,150 

5,020 

5,370 

5,370 

4,900 

5,130 

5,020

134, 700

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.06 

.06 

.04 

.02 

.02 

.02 

.01 

.01 

.02 

.24 

.06 

.11 

.03 

.06

.06 

.03 

.03 

.02 

.02 

.02 

.01 

.01 

.02 

.04 

.04 

.04 

.02 

.02 

.02 

.02

--

Tons 

per 

day

2,350 

2,060 

8,310 

5,420 

2,240 

2,080 

1,840 

807 

788 

1,880

32, 500 

8,500 

14, 600 

3,530 

8,310

8,910 

3,880 

3,530 

2,080 

2,030 

1,750 

829 

850 

1,980 

4,480 

5,420 

5,800 

2,900 

2,650 

2,770 

2,710

152,800

August

783 

755 

840 

811 

677 

647 

702 

802 

1,270 

713

623 

536 

489 

460 

428 

402 

484 

421 

387 

351

334 

317 

317 

291 

282 

272 

272 

263 

248 

233 

216

15,626

0 

.01 

.02 

.04 

.03 

.02 

.13 

.70 

1.28 

.21

.03 

.01 

.01 

0 

0 

0 

.85 

.99 

.02 

.01

.01 

.01 

.01 

.01 

0 

0 

0 

0 

0 

0 

0

-

0 

204 

454 

876 

548

349 

2/3,380 

2/18, 800 

2/57, 600 

4,040

505 

145 

132 

0 

0 

0 

2/15,400 

11,300 

209 

95

90 

86 

86 

79 

0 

0 

0 

0 

0 

0 

0

114,400

June

Mean

charge 

(secondfeet)

4,460 

3,760 

3,860 

4,050 

4,790 

5,130 

4,790 

4,250 

3,960 

4,790 

5,130 

5,370 

5,370 

5,880 

6,150

6,420 

6,990 

8,230 

9,900 

7, 290

6,840 

6,420 

6,420 

7,140 

5,500 

5,250 

4,900 

4,790 

4,460 

4,250

166, 540

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.02 

.02 

.02 

.02 

.03 

.02 

.01 

.01 

.02

.04 

.04 

.04 

.06 

.06

.10 

.10 

.18 

.27 

.14

.10 

.09 

.14 

.14 

.06 

.06 

.04 

.04 

.02 

.02

Tons 

per 

day

2,410 

2,030 

2,080 

2,190 

2,590 

4,160 

2,590 

1,150 

1,070 

2,590 

5,540 

5,800 

5,800 

9,530 

9,960

17, 300 

18, 900 

40, 000 

72, 200 

27, 600 

18, 500 

15,600 

24, 300 

27, 000 

8,910 

8,500 

5,290 

5,170 

2,410 

2,300

353, 500

September

202 

230 

269 

227 

219

208 

205 

191 

188 

199

263 

358 

456 

532 

405 

311 

279 

248 

236 

230

219 

208 

202 

216 

236 

202 

194 

194 

301 

245

7,673

0 

.11 

.01 

.01 

0

0 

0 

0 

0 

0 

.02 

0 

.13 

.82 

.06 

.01 

0 

0 

0 

0

0 

0 

0 

.01 

I/. 20 

.06 

.75 

.01 

.01 

.06

-

0 

683 

73 

61 

0 

0 

0 

0 

0 

0

142 

0 

1,600 

11, 800 

656 

84 

0 

0 

0 

0

0 

0 

0 

58 

1,270 

327 

3,930 

52 

81 

397

21,210

Total discharge for period Mar. 25 to Sept. 30 (second-foot-days) 

Total load for period Mar. 25 to Sept. 30 (tons) --- 

495, 411

1,412, 000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
SAN JUAN RIVER BASIN--Continued 

SAN JUAN RIVER AT ROSA, N. HEX. --Continued

Particle-size analyses of suspended sediment, March to Septemb

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

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

Date Time

12:15 p.m. 

2:45 p.m. 

2:30 p. m. 

8:00 p.m. 

7:15 a.m. 

7:00 p.m. 

7:15 a.m. 

7:15 a.m. 

12:55 p.m. 

2:05 p.m.

7:30 a. m. 

7:00 a.m. 

10:30 a. m. 

7:15 p.m. 

7:30 a. m. 

7:30 p.m. 

7:30 a.m. 

7:30 p.m. 

11:30 a. m. 

7:30 p.m. 

7:15 a. m. 

7:30 p.m.

7 :30 p.m 

7:30 a. m. 

7:30 a.m. 

1:00 p.m. 

8:00 a.m. 

8:00 a. m. 

8:00 a. m. 

8:00 a. m. 

8:00 a. m.

Mean 

discharge 

(secondfeet)

963 

642 

1,450 

1,950 

2,550 

2,550 

3,320 

3,760 

3,760 

3,760

5,130 

5,020 

5,020 

4,150 

2,990 

5,020 

5,500 

5,500 

4,790 

4,790 

3,150 

3,670

4,460 

4,790 

5,370 

5,880 

6,150 

6,420 

6,990 

9,900 

7,140

Suspended sedim

Mean daily 

concentration 

(percent)

0.54 

.09 

.58 

.23 

.66 

.66 

.33 

.11 

.11 

.11

.06 

.04 

.04 

.02 

.01 

.24 

.06 

.06 

.03 

.03 

.01 

.02

.02 

.02 

.04 

.06 

.06 

.10 

.10 

.27 

.14

Weight of 

material 

in tube 

(grams)

0. 8490 

.2133 

.6531 

.4091 

.5374 

.8598 

.9163 

.5010 

.4660 

.2842

.2459 

.1296 

.1554 

.0803 

.0412 

.2740 

.1049 

.0494 

.1440 

.0505 

.0454 

.0952

.0630 

.1270 

.1871 

.3481 

.3212 

.4502 

.5643 

1.3401 

.7944

Percent finer 

0.002

13 

38 

33 

18 

17 

14 

13 

14

16

9 

22 

15 

17 

31 

16 

16 

37 

17 

32 

39 

8

26 

22 

10 

9 

13 

10 

11 

30 

14

0.004

16 

54 

47 

27 

26 

32 

20 

21 

38 

22

11 

27 

19 

20 

33 

21 

18 

49 

19 

34 

43 

12

38 

29 

17 

14 

21 

17 

18 

36 

23

0.008

70 

61 

36 

35 

39 

27 

28 

54 

28

16 

32 

25 

28 

45 

28 

26 

53 

25 

39 

47 

15

48 

38 

25 

21 

31 

25 

27 

53 

35

0.016

93 

84 

75 

45 

45 

47 

35 

35 

62 

34

25 

37 

32 

42 

47 

36 

41 

65 

32 

41 

58 

27

56 

44 

37 

32 

45 

37 

39 

65 

52

0.
1 250

oq n

12

1 ?

nooo

2690 '

q 1

eq

q/\

72

on

92

59

on

95

99

no
SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLANCO, N. MEX.

LOCATION. At bridge on State Highway 17 half a mile downstream from gaging station which is 1 mile 

San Juan County.

DRAINAGE AREA. 3,560 square miles (revised). 

RECORDS AVAILABLE.--Chemical analyses: October 1945 to September 1949.

Water temperatures: March to September 1949.

Sediment records: March to September 1949. 

EXTREMES, 1948-49.--Dissolved solids: Maximum, 347 parts per million Jan. 1, 4-7, 9-10; minimum, 80 

Total hardness: Maximum, 178 parts per million Jan. 1, 4-7, 9-10; mimimum, 48 parts per million J

Water temperatures: Maximum, 78°F August 1; minimum, 39°F April 1.

Sediment loads; Maximum, 141,000 tons per day July 11; minimum, less than 50 tons per day Sept. 

EXTREMES, 1945-49. Dissolved solids: Maximum, 1,030 parts per million Aug. 16, 1947; minimum, 80 p

Total hardness: Maximum, 680 parts per million Aug. 16, 1947; minimum, 48 parts per million, Jul

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Supply P

samples available in district office at Albuquerque, N. Mex.

Chemical analyses, In parts per million, water year October 1948 to S

Date of collection

Oct. 1-6, 8-10, 1948 

Oct 11 20

Oct. 21-26, 29-31- 

Nov. 1-7, 9-10 

Nov. 11-13, 15-17,

Nov. 21-24, 26-30

Dec. 1-6, 8-10 

Dec. 11-17, 19-20- 

Dec. 21-23, 26,

Jan. 1, 4-7, 9-10, 

1949

Jan. 11-12, 14-20-

Feb. 1-4, 6-10 

Mar 21.31 -- 

Mean 

discharge 

(secondfeet)

342 

238 

447 

308

192 

172

184 

210

226

192 

307 

280

210 

364 

684 

1,048 

1,686 

1 34 5

PH

7.7 

7.8 

7.7 

8.0

8.0 

7.8

7.7 

7.7

7.8

7.9 

7.9 

7.9

7.9 

7.9 

7.7 

7.7 

7.7 

7 5

Specific 

conductance 

(micromhos at 

25° C )

371 

409 

452 

439

491 

488

526 

470

471

528 

479 

479

494 

382 

405 

463 

473 

3R4

Silica 

(SiOa)

12 

11 

11 

17

15 

13

16 

14

12

16 

12 

15

14 

12 

13 

12 

13 

in

Iron 

(Fe)

0.02 

.01 

.03 

.01

.01 

.02

.02 

.02

.02

.00 

.00 

.00

.02 

.02 

.02 

.02 

.03 

na

Calcium 

(Ca)

39 

41 

45 

44

50 

50

52 

47

46

55 

48 

50

52 

41 

46 

46 

50

A1

Magnesium 

(Mg)

7.2 

8.0 

9.8 

10

9.8 

9.7

9.9 

9.2

9.1

9.9 

8.6 

9.1

9.6 

7.3 

7.1 

8.5 

11

19

Sodium 

(Na)

Potassium 

(K)

31 

36 

40 

34

40 

42

47 

40

40

48 

48 

41

43 

32 

31 

41 

34 

1R

Bicarbonate 

(HCO,)

140 

145 

151 

142

155 

160

169 

149

143

167 

148 

151

157 

127 

136 

149 

150

110

Sulfate 

(S04)

67 

81 

99 

94

110 

108

116 

103

105

125 

116 

110

113 

83 

85 

97 

106

Hfi

Chloride 

(Cl)

5.5 

6.5 

7.5 

6.0

7.5 

7.5

8.5 

8.0

8.5

9.0 

11 

8.2

8.2 

6.5 

6.5 

10 

5.0 

4 n
May 1-2, 4-10 

May 21-23, 25-31 -

July 21-28, 30 

Weighted average5 724

5,029

4,863

7 QftQ

7 659

1,934 

1 233

437

535

392

1,919

7 9

7.2

7.0

6 9

7.1 

7 2

7 3

-

Qflft

175

152

184

248

327

331

219

13

13

16

16

13

14

.03

.03

.18

03

0.04

39

22 

23

19

23

15

30 

30

35

35

07

26

9 4

4.5 

4 9

3.9 

3 4

3 5

2

0

5.7

5 4

7

0

5.3

13

6

6

14

12

.4

.7

1.8

94

73

QO

67

57

106

88

29

22 

23

18

13

13

25

33

34

2

0

2 5

2.2

2

0

2.2

2 5

4.2

2

0

3 2

5 fi

3 9

I/Reported boron concentrations in column are less than figure indicated.
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLANCO, N. HEX.--Continued

Temperature (°F) ot water, March to September 1949

Day

2

12

19

21

22

23

24

25

verage

March

"

 

"

April

56

May

60

60

60

56

June

53

59

57

59

63

67

July August

72

73

72

73

72

September

60

Suspended sediment, March to September 1949

Day

1 

2 

3 

4 

5 

6 

7--. 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25------

26 

27 

28 

29 

30 

31 

Total -

January

Mean

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

February

Mean

discharge 

(secondfeet)

Suspended sediment

Mean 

concentration 

(percent)

Tons 

per 

day

March

Mean

discharge 

(secondfeet)

_

_

..

--

~~

_

_

1,460

1,700 

2,120

1,960

1,800

2,080

1,700 

1,700

1,650 

1,460

1,400

1,200

1,000

1,100

1,300

1,200

1,080

3/25,910

Suspended sediment

Mean 

concentration 

(percent)

..

-

..

0.50

I/. 87 

1.15

.95

.71

.94

1/-85 

I/. 67

I/. 57 

I/. 31

.06

.05

.03

.08

. 14

. 18

.07

Tons 

per 

day

__

--

 ~

_.

19,700

39,900 

2/68, 300

56, 100

34, 500

52, 800

39, 000 

30, 800

25, 400 

12, 200

2,270

1,620

810

2,380

4,910

5,830

2,040

3/398,600

I/Estimated or interpolated

2/Sediment discharge computed by subdividing day.

3/Mar. 15-31.
SAN JUAN RIVER BASIN 461

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLANCO, N. HEX. Continued

Suspended sediment, March to September 1949 Continued

Day

2

Q

15 

19

9ft

22

93

25

9R

29

31 

Totalo

g

13

19

20

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

1,160 

1,000 

900 

1,100 

1,460 

1,650 

2,140 

2,880 

3,690 

2,660

2,260 

2,930 

3,930 

4,120 

4,120

4,020 

4,530 

5,180 

4,850 

4,420 

4,320 

4,850 

5,770 

6,020 

6,270

6,670 

6,140 

5,410 

5,770 

6,020

116,240

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.09 

.05 

.10 

.38

.59 

.82 

.90 

1.04 

.56

.29 

.62 

.91

.74 

.47

.40 

.49 

.41 

.28 

.18

.20 

.22 

.35 

.30 

.28

.24 

.16 

.12 

. 13 

.12

Tons 

per 

day

1,250 

2,430 

1,220 

2,970 

15,000

26,300 

47,400 

70, 000 

104, 000 

40,200

17, 700 

2/52,200 

2/99, 000 

82,300 

52,300 

43. 400 

59,900 

57,300 

36,700 

21, 500

23,300 

28,800 

54, 500 

48, 800 

47, 400

43,200 

26, 500 

17, 500 

20,300 

19, 500

1,163,000

July

5,400 

5,300 

5,200 

4,900 

4,640

4,220 

4,120 

4,300 

3,700 

4,500

4,850 

4,320 

3,750 

3,410 

3,020

2,590 

2,260 

2,140 

1,910 

1,860

1,800 

1,800 

2,020 

2,460 

2,950

2,390 

1,960 

1,700 

1,550 

1,360 

1,280

97,660

0.05 

.06 

.04 

.04 

.02

.02 

.04 

.04 

.12 

.61 

1.08 

.49 

.10 

.06 

.06 

.03 

.02 

.02 

.02 

.01

.01 

.17 

.44 

.60 

.84

.75 

.10 

.03 

.02 

.01 

.01

--

7,290 

8,590 

5,620 

5,290 

2,510

2,280 

4,450 

4,640 

12, 000 

74, 100 

141, 000 

57, 200 

10, 100 

5,520 

4,890

2,100 

1,220 

1, 160 

1,030 

502

486 

8,260 

24, 000 

39,900 

66, 900

48,400 

5,290 

1,380 

837 

367 

346

547,700

May

Mean

charge 

(secondfeet)

5,650 

5,410 

6,140 

6,140 

5,650

4,960 

4,640 

4,020 

3,660 

4,020

5,890 

6,270 

6,270 

5,410 

5,770

6,270 

5,770 

5,410 

4,740 

4,320 

4,020 

3,660 

3,580 

4,020 

4,530

5,180 

5,650 

6,020 

5,530 

5,650 

5,650

159,900

Suspended sediment

Mean 

concentration

(percent)

0.10 

.09 

.11 

.08 

.06 

.06 

.05 

.04 

.05 

.06 

.28 

.26 

.50 

.08 

.10

.09 

.07 

.06 

.04 

.04 

.07 

.06 

.03 

.04 

.05

.08 

.08 

.09 

.05 

.05 

.06

Tons 

per 

day

15,300 

13, 100 

18,200 

13,300 

9,150 

8,040 

6,260 

4.340 

4,940 

6,510 

44, 500 

44, 000 

84, 600 

11,700 

15,600

15,200 

10,900 

8,760 

5, 120 

4,670 

7,600 

5,930 

2,900 

4,340 

6,120

11,200 

12,200 

14,600 

7,470 

7,630 

9,150

433,300

August

1,200 

1,160 

1,120 

1,240 

1,120

1,000 

1,070 

1,240 

1,900 

1,280

1,080 

954 

881 

799 

751

705 

717 

787 

635 

569

522 

503 

463 

446 

446 

425 

421 

425 

405 

386 

366

25, 016

0.01 

.06 

.02 

.02 

.06 

.04 

.09 

1.04 

1.78 

1.13 

.21 

.05 

.02 

.01 

.01

.01 

.05 

. 18 

.15 

.06 

.02 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01

-

324 

1,880 

605 

670 

1,810

1,080 

2/4, 650 

34, 800 

91,300 

39,100

6,120 

1,290 

476 

216 

203

190 

968 

3,820 

2,570 

922

282 

136 

125 

120 

120 

115 

114 

115 

109 

104 

99

194, 400

June

Mean

charge 

(secondfeet)

5,410 

4,530 

4,120 

4,120 

4,850

5,300 

5,180 

4,640 

4,120 

4,640 

5,530 

5,770 

6,270 

6,950 

7,230

7,670 

8,130 

8,980 

12,800 

10, 500 

9,320 

8,620 

8,450 

9,150 

8, 130

7,520 

6,810 

6,540 

6,400 

5,650

203,330

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.03 

.03 

.03 

.06

.06 

.05 

.02 

.03 

.12 

.41 

.08 

.09 

.09 

.10 

.12 

.15 

.15 

.39 

.27

.16 

.14 

.12 

.27 

. 11 

.10 

.08 

.07 

.06 

.06

Tons 

per 

day

5,840 

3,670 

3,340 

3,340 

7,860 

8, 590 

6,990 

2,510 

3,340 

15,000

61,200 

12, 500 

15,200 

16,900 

19, 500

24, 800 

32,900 

36, 400 

135, 000 

76, 500 

40,300 

32,600 

27, 400 

66,700 

24, 100

20,300 

14, 700 

12, 400 

10,400 

9,150

749, 400

September

363 

363 

393 

405 

382

374 

363 

476 

374 

294

393 

503 

662 

694

745

555 

494 

463 

434 

409

397 

370 

348 

334 

450 

425 

386 

317 

320 

575

13, 061

0.01 

.01 

.01 

.02 

0

.01 

0 

.01 

.01 

0 

0 

.06 

.15 

.12 

.37

. 10 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01

.01 

.04 

.05 

.08 

.06

98 

98 

106 

219 

0

101 

0 

129 

101 

0

0 

815 

2,680 

2,250 

7,440 

1,500 

267 

125 

117 

110 

107 

100 

94 

90 

122

115 

417 

428 

691 

932

19,250

Total discharge for period Mar. 15 to Sept. 30 (second-foot-days) - 

Total load for period Mar. 15 to Sept. 30 (tons) -

624, 902

3,505,000

I/Estimated or interpolated.

^/Sediment discharge computed by subdividing day.
SAN JUAN RIVER BASIN--Continued 

SAN JUAN RIVER NEAR BLANCO, N. HEX.--Continued

Particle-size analyses of suspended sediment, March to September 1

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

W, in distilled water; C, chemically dispersed; M, mechanicall

Date of collection

Apr. 14 

Mav 5>fi -- 

Time

2:05 p.m. 

11:35 a.m. 

9:40 a. m. 

9:40 a. m.

10:00 a. m. 

4:35 p. m. 

7:15 a.m. 

9:00 a.m. 

4:30 p. m. 

9:30 a. m.

9:35 a.m. 

5:40 p. m. 

8:45 a.m. 

11:55 a. m. 

6:00 p. m. 

11:30 a.m. 

1:40 p.m.

2:30 p. m. 

6:30 p.m. 

7:30 p. m. 

11:45 a.m. 

10:00 a. m.

3:00 p. m. 

9:30 a. m. 

11:45 a.m. 

7:15 p.m. 

11-30 a in

Mean 

discharge 

(secondfeet)

1,460 

2,120 

2,080 

1,200

1,100 

1,650 

2,880 

2,260 

2,930 

3,930

4,120 

4,120 

5,180 

5,180 

4,320 

5,770 

6,270

6,140 

6,140 

5,650 

4,020 

6,270

6,270 

5,410 

4,740 

4,020 

4.530

Suspended sed

Mean daily 

concentration 

(percent)

0.50 

1.15 

.94 

.18

.10 

.59 

.96 

.29 

.62 

.91

.70 

.70 

.41 

.41 

.20 

.35 

.28

. 11 

. 11 

.06 

.04 

.26

.09 

.06 

.04 

.07 

.05

Weight of 

material 

in tube 

(grams)

0.2810 

.5661 

.6158 

.2215

.2279 

.5212 

.6618 

.9123 

.4109 

.8805

.6523 

.3296 

1.0515 

1. 5073 

.4912 

.7753 

.9288

.4109 

.3804 

.1532 

. 1028 

.3699

.3151 

.1165 

. 1151 

.0702 

.0828

Percent fine

0.002

4 

22 

2 

6

28 

21 

19 

20 

12 

11

9 

17 

8 

16 

13 

4 

8

8 

12 

17 

9 

21

9 

13 

3 

14 

19

0.004

16 

31 

8 

23

38 

29 

27 

28 

18 

16

13 

23 

11 

17 

18 

8 

13

10 

16 

20 

13 

29

12 

21 

13 

16 

20

0.008

32 

62 

16

48

48 

41 

36 

37 

24 

21

17 

30 

15 

26 

24 

10 

18

13 

20 

26

15 

37

16 

28 

19 

22 

23

0.016

48 

72 

24 

67

56 

52 

46 

46 

32 

28

23 

39 

20 

36 

32 

16 

25

17 

27 

31 

24 

47

23 

38 

30 

31 

33

0
June 1-- 

June 10 - 

June 13 - 

June 14 - 

June 16 -

June 18 - 

June 19 - 

June 21 - 

June 21 - 

June 24 -

July 1 - 

July 10 - 

July 19 - 

July 22 - 

Aug. 12 

Aug. 20

Sept. 4 -

Sept. 20

Sept. 27

5:30 p. m. 

6:30 p. m, 

7:00 p.m. 

7:30 p. m. 

7:00 p.m.

5:30 p.m. 

6:45 p.m. 

7:30 a. m. 

5:45 p.m. 

6:20 p.m.

7:30 a. m. 

3:40 p. m. 

6:00 p.m. 

7:30 a. m. 

7:20 a. m. 

12:00 m.

12:00 m. 

11:15 a. m, 

5:30 p.m.

5,410

4,640

6,270

6,950

7,670

12,800

9,320

9,320

9,150

5,400

4,500

1,910

1,800

954

569

405

409

386

. 1087

.4887

.3266

.4248

.5053

.5973

1. 2058

.5594

.5091

.8426

. 1475

1. 7264

.0708

.0399

.1842

.2327

.0825

.0285

.2406

79

85

100
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 s

DRAINAGE AREA. 23,000 square miles.

RECORDS AVAILABLE.--Chemical analyses: February to June 1927, October 1929 to September 1949.

Water temperatures: May 1944 to September 1949.

Sediment records: August to September 1928, July 1929 to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 1,050 parts per million Jan. 1-10; minimum, 187 pa

Total hardness: Maximum, 562 parts per million Jan. 1-10; minimum, 124 parts per million July 1

Water temperatures: Maximum, 80°F July 31, Aug. 25; minimum, freezing point on many days in win

Sediment loads: Maximum, 1,730,000 tons per day June 19; minimum, 19 tons per day Jan. 6. 

EXTREMES, 1929-49. Dissolved solids: Maximum, 1,860 parts per million July 21-31, 1934; minimum, 

Total hardness: Maximum, 874 parts per million July 21-31, 1934; minimum, 109 parts per million 

Water temperatures (1944-49): Maximum, 85*F July 21, 1945; minimum, freezing point on many days 

Sediment loads; Maximum, 11,450,000 tons per day Sept. 23, 1929; minimum, 19 tons per day Jan. 

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in regional office at Salt Lake City, Utah.

Chemical analyses, in parts per million, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 

Jan. 1-10, 1949 

Mar 11 20

Mar- 91-31 

Mean 

discharge 

(secondfeet)

949 

650 

1,981 

1,541 

652 

578

532 

626 

836 

429 

1,785 

874

465 

803 

3,075 

2,337 

2,600 

 >. 497

PH

7.5 

7.6 

7.6 

7.7 

7.8 

8.0

8.0 

7.9 

7.9 

7.9 

7.6 

7.6

7.6 

7.8 

7.8 

8.0 

7.9 

7 R

Specific 

conductance 

(micromhos at 

25° C )

1,010 

1,000 

1,180 

1,110 

1,140 

1,100

1,080 

1,200 

1,170 

1,440 

1,060 

1,170

1,330 

1,110 

969 

1,030 

853 

7fin

Silica 

(SiOa)

13 

9.9 

12 

13 

12 

13

12 

12 

14 

15 

13 

14

12 

11 

11 

12 

12 

12

Iron

(Fe)

0.20 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.01 

.01

.00 

.01 

.02 

.01 

.01 

.m

Calcium 

(Ca)

108 

104 

122 

104 

119 

115

113 

120 

117 

153 

108 

118

138 

114 

88 

105 

92 

84

Magnesium 

(Mg)

26 

27 

30 

22 

32 

33

31 

38 

35 

44 

27 

32

40 

32 

18 

26 

25 

25

Sodium 

(Na)

Potassium 

(K)

80 

81 

108 

121 

101 

94

92 

106 

103 

126 

99 

109

116 

96 

106 

94 

61 

4R

Bicarbonate 

(HCOS)

216 

186 

200 

194 

204 

190

186 

210 

200 

254 

212 

222

236 

198 

180 

214 

196 

184

Sulfate 

(S04)

333 

344 

440 

401 

421 

410

398 

452 

433 

546 

369 

421

498 

405 

337 

352 

266 

231

Chlorid

(Cl)

16 

23 

25 

22 

28 

28

28 

28 

28 

39 

23 

26

32 

26 

15 

18 

17 

15
BAav 21 31

Weighted average 

3,123 

5,594 

8,341 

7,998 

8,567 

8,003

7,703 

11,780 

24,340 

15,710 

8,230 

5,355 

3,305

2,263 

1,486 

724 

406 

1,001 

676

3,485

7.7 

7.8 

7.9 

7.1 

7.4 

7.4

7.4 

7.5

7.3 

7.5 

7.8 

7.9

8.0 

7.3 

7.5 

7.6 

7.8 

7.8

--

796 

546 

394 

344 

362 

338

299 

296 

554 

345 

300 

406 

566

592 

760 

898 

1,030 

1,240 

972

526

11 

11 

12 

12 

12 

12

12 

10 

12 

12 

13 

13 

15

14 

15 

14 

10 

16 

12

12

.02 

.01 

.06 

.04 

.03 

.06

.10 

.17

.09 

.03 

.02 

.02

.05 

.07 

.08 

.08 

.28 

.04

0.06

80 

67 

48 

47 

47 

44

39 

38 

65 

48 

39 

49 

58

64 

80 

89 

98 

120 

94

61

28 

18 

11 

8.7 

8.7 

8.8

7.2 

7.4 

13 

7.5 

6.6 

8.3 

11

13 

18 

24 

29 

37 

26

14

55 

24 

21 

18 

19 

16

16 

15 

42 

15 

13 

22 

46

48 

63 

78 

93 

111 

88

36

184 

162 

140 

148 

132 

120

106 

108 

148 

126 

104 

116 

132

140 

158 

160 

154 

226 

179

143

248 

139 

82 

61 

75 

71

63 

60 

164 

71 

61 

99 

163

176 

247 

316 

388 

451 

340

148

16 

9.0 

5.5 

4.0 

5.0 

4.0

4.8 

4.2 

10 

4 

2 

3 7

12 

16 

20 

24 

24 

21

8.7
SAN JUAN RIVER BASIN Continu

SAN JOAN RIVER NEAR BLUFF, UTAH Co

Temperature (° F ) of water, water year October 1948 

Day

q

1 1

91

oq

on

October

on

AQ

November

OO

December

qn

January

qn

qO

QX

February

q«

March Ap
SAN JUAN RIVER BASIN

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Suspended sediment, water year October 1948 to September 1949

Day

q

g

12

19

2290

9ft

9ft

30

Totalq

g

1 Q

19

20

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

1,260 

1,060 

1,100 

963 

928

870 

900 

816 

822 

768

750 

720 

679 

634 

628 

590 

579 

579 

702 

640

810 

846 

876 

732 

685

685 

668 

1,330 

4,400 

4,130 

6,630

37,780

Suspended sediment

Mean 

concentration 

(percent)

1.90 

1.18 

1.00 

.80 

.59

.58 

.34 

.36 

.31 

.44 

.33 

.35 

.27 

.44 

.27

.26 

.20 

.24 

.38 

.46

.59 

.40 

.64 

.59 

.49

.51 

.35 

1.34 

4.14 

3.66 

4.75

Tons 

per 

day

64,600 

33,800 

29,700 

20,800 

14,800

13,600 

8,260 

7,930 

6,880 

9,120 

6,700 

6,800 

4,950 

7,530 

4,580

4,140 

3,130 

3,750 

7,200 

7,950 

12,900 

1/10,300 

15, 100 

11,700 

9,070

9,420 

6,320 

1/72,900 

1/496,000 

408,000 

1/995,000

^313,000

January

714 

786 

668 

300 

100

70 

100 

300 

450 

800

1,440 

2,150 

2,850 

3,750 

2,630

1,740 

1,100 

786 

702 

702

617 

732 

876 

1,160 

1,030 

1,060 

1,090 

977 

768 

651 

651

31,750

0.37 

.28 

.31 

.14 

.04

.01 

.01 

.02 

.06 

.70 

.52 

1.52 

2.47 

2.72 

2.17

1.10 

.75 

.52 

.24 

.23

.24 

.35 

.49 

.99 

.74 

.60 

.56 

.44 

.21 

.12 

.08

7,130 

5,940 

5,590 

1,130 

108

19 

27 

162 

729 

15,100

20, 200 

1/91,700 

1/193,000 

1/582,000 

1/159,000

51,700 

22,300 

11,000 

4,550 

4,360 

4,000 

6,920 

11,600 

31,000 

20,600 

17,200 

16,500 

11,600 

4,350 

2,110 

1,400

1,003,000

November

Mean

charge 

(secondfeet)

4,900 

2,680 

1,500 

1,080 

1,030

942 

888 

858 

810 

726

685 

691 

662 

634 

656

674 

645 

628 

634 

606

617 

612 

568 

579 

606

579 

612 

579 

552 

480

27,713

Suspended sediment

Mean 

concentration 

(percent)

6.70 

4.83 

2.85 

1.90 

1.30

.84 

.67 

.47 

.37 

.33

.31 

.24 

.26 

.24 

.26

.25 

.25 

.26 

.24 

.23

.26 

.26 

.19 

.24 

.28

.23 

.16 

.23 

.24 

.16

Tons 

per 

day

886, 000 

1/364,000 

115,000 

55,400 

36,200

21,400 

16, 100 

10,900 

8,100 

6,470

5,730 

4,480 

4,650 

4,110 

4,610 

4,550 

4,350 

4,410 

4,110 

3,760

4,330 

4,300 

2,910 

3,750 

4,580

3,600 

2,640 

3,600 

3,580 

2,070

1,600, 000

February

579 

211 

199 

311 

606 

732 

685 

531 

432 

364

471 

531 

840 

870 

822

798 

792 

914 

852 

1,140 

1,530 

1,950 

2,540 

3,810 

4,320 

4,770 

3,200 

2,480

37,280

0.06 

.06 

.09 

.04 

.08

.15 

.17 

.22 

.04 

.12 

.04 

.19 

.39 

.40 

.32

.25 

.28 

.33 

.41

.55

.96 

1.80 

2.09 

2.50 

3.54 

3.78 

2.88 

2.17

938 

342 

484 

336 

1,310

2,960 

3,140 

3,150 

467 

1,180

509 

2,720 

1/9, 120 

1/9,990 

1/7,240

5,390 

5,990 

8,140 

1/10, 100 

16,900

39, 600 

94,800 

1/147,000 

1/565,000 

1/4]9,000 

1/494,000 

1/254,000 

145,000

1,949,000

December

Mean

charge 

(second - 

feet)

466 

563 

552 

542 

601 

563 

526 

495 

505 

510 

552 

568 

617 

640 

640 

645 

674 

640 

656 

628 

563 

601 

1,260 

1,170 

858

714 

697 

1,060 

816 

744 

714

20j780

Suspended sediment

Mean 

concentration 

(percent)

0.16 

.24 

.32 

.35 

.33

.25 

.16 

.28 

.20 

.16

.20 

.22 

.30 

.31 

.32

.31 

.27 

.29 

.19 

.30 

.21 

.19 

1.15 

1.56 

.78

.38 

. 60 

.77 

.40 

.45 

.24

Tons 

per 

day

2,010 

3,650 

4,770 

5,120 

5,350

3,800 

2,270 

3,740 

2,730 

2,200

2,980 

3,370 

1/5,080 

5,360 

5,530

5,400 

4,910 

5,010 

3,370 

5,080

3,190 

3,080 

1/49,400 

49,300 

1/19,900

7,330 

11,300 

1/23,500 

8,800 

9,040 

4,630

271,200

March

2,340 

2,220 

1,760 

1,560 

2,010

2,270 

2,810 

2,990 

3,030 

2,380

1,940 

1,980 

2,400 

2,430 

2,320 

2,400 

2,660 

3,250 

3,370 

3,250

3,340 

3,280 

2,810 

2,850 

2,660 

2,340 

2,010 

1,870 

1,910 

2,140 

2,260

76,840

1.82 

1.41 

1.43 

1.14 

1.35

1.38 

1.82 

1.70 

1.61 

1.40

1.10 

.95 

1.00 

1.14 

1.10

1.00 

L12 

1.52 

1.60 

1.42

1.28 

1.06 

.96 

.90 

.55 

.57 

.56 

.39 

.51 

.64 

.59

115,000 

84,500 

68,000 

48,000 

73,300

84,600 

1/143,000 

137,000 

132,000 

90,000

57,600 

50,800 

64,800 

74,800 

68,900

64,800 

80,400 

133,000 

146,000 

125,000

115,000 

93,900 

72,800 

69,300 

39, 500 

36,000 

30,400 

19,700 

26,300 

37,000 

36,000

2,417,000

I/Sediment discharge computed by subdividing day.
COLORADO RIVER BASIN

SAN JUAN RIVER BASIN Continued

SAN JUAN RIVER NEAR BLDFF, UTAH Continued

Suspended sediment, water year October 1948 to September 1949 Continued

Day

<j

Q

1 9

1 R

22

90

25

9Q

30

31

Total2

Q

g

12

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean

charge 

(secondfeet)

2,850 

2,750 

2,180 

2,060 

1,980

2,430 

3,100 

3,830 

4,450 

5,600

4,350 

3,960 

4,130 

5,220 

5,840

5,840 

5,840 

6,490 

7,370 

6,890

6,330 

6,130 

6,490 

7,900 

9,270

9,940 

10, 170 

9,880 

8,790 

8,510

170, 580

Suspended sediment

Mean 

concentration 

(percent)

0.73 

.81 

.73 

.80 

.59

.73 

1.07 

1.42 

1.70 

1.83

1.30 

1.05 

1.13 

1. 33 

1.60 

1.22 

1.24 

1.23 

1.15 

1.12

.99

.85 

1.00 

1.38 

1.58

1.66 

2.42 

3,56 

1.14 

.83

Tons 

per 

day

56, 200 

60,100 

43,000 

44, 500 

31, 500

47,900 

89,600 

1/153,000 

1/207,000 

277,000 

153,000 

112,000 

1/130,000 

1/193,000 

252,000

192,000 

196,000 

216,000 

229, 000 

208,000

169, 000 

141,000 

175,000 

294, 000 

395,000 

446,000 

1/689,000 

1/954,000 

1/276,000 

1/194,000

6,624,000

July

9,820 

9,130 

9,050 

9,130 

9,110 

8,110 

7,350 

6,760 

7,390 

6,450 

7,940 

7,690 

7,250 

6,170 

5,390 

4,790 

4,190 

3,660 

3,340 

3,130

2,970 

2,970 

3,020 

3,440 

3,920

4,720 

4,590 

3,300 

2,800 

2,460 

2,160

172, 200

0.35 

.38 

.36 

.37 

.41

.39 

.42 

.27 

1.22 

.91 

1.36 

.88 

1.02 

.82 

.55 

.54 

.35 

.26 

.23 

.18

.16

.81 

.80 

.87 

1.22

2.20 

2.15 

1.40 

.70 

.37 

.25

92, 800 

93,700 

88,000 

91,200 

101,000 

85,400 

83,300 

49,300 

1/246,000 

1/179, 000 

1/295,000 

183,000 

200,000 

137,000 

80, 000 

69, 800 

39, 600 

25,700 

20,700 

15,200

12, 800 

1/66,800 

1/67,800 

1/96,000 

1/133,000

280, 000 

266, 000 

125,000 

52,900 

24,600 

14,600

3,315,000

May

Mean

charge 

(secondfeet)

9,510 

8,970 

7,920 

8,750 

9,610

8,950 

8,050 

7,140 

5,940 

5,140 

5,430 

8,550 

9,410 

9,570 

8,350

8,610 

10,010 

9,670 

8,630 

7,440

6,800 

6,450 

5,730 

5,600 

6,170 

7,160 

8,350 

9,590 

10,990 

10,850 

10,340

253,680

Suspended sediment

Mean 

concentration 

(percent)

0.80 

.74 

.66 

.70 

.71

.65 

.50 

.45 

.41 

.37 

.46 

.72 

.89 

.72 

.64 

.59 

.62 

.55 

.50 

.47

.42 

.37 

.31 

.30 

.35

.44 

.52 

.56 

.76 

.59 

.44

Tons 

per 

day

205,000 

179,000 

141,000 

165,000 

184,000

157,000 

109,000 

86,800 

65,800 

51,400

67,400 

1/168,000 

226,000 

186,000 

144,000

137,000 

168,000 

144,000 

117,000 

94,400

77, 100 

64,400 

48,000 

45,400 

58, 300 

85,100 

117,000 

145,000 

226,000 

173,000 

123,000

3,958,000

August

2,050 

1,860 

1,680 

1,630 

1,580 

1,630 

1,580 

2,290 

4,650 

3,680 

2,840 

2,100 

1,730 

1,460 

1,350 

1,220 

1,070 

977 

1,010 

1,100

970 

888 

798 

780 

726

726 

662 

645 

617 

595 

552

45,446

0.22 

.18 

.16 

.16 

.19 

.26 

1.32 

3.04 

6.83 

4.11 

2.98 

1.75 

1.46 

.80 

.55 

.42 

.36 

.31 

.38 

.35

.31 

.28 

.28 

.34 

.27

.29 

.19 

.18 

.19 

.23 

.15

-

12,200 

9,040 

7,260 

7,040 

8,110

11,400 

1/69,600 

1/210,000 

1/851,000 

1/418,000 

1/236,000 

99, 200 

68,200 

31,500 

20,000 

13,800 

10,400 

8,200 

10,400 

10,400

8,120 

6,720 

6,030 

7,160 

5,290

5,700 

3,400 

3,130 

3,170 

3,700 

2,240

2, 166, 000

June

Mean

charge 

(secondfeet)

10,360 

9,190 

7,780 

6,780 

6,740

7,030 

7,390 

7,780 

7,220 

6,760 

7,710 

9,510 

10, 510 

11,430 

12,340

13,050 

13,550 

16,120 

23,280 

25,400

24,300 

19,540 

17,110 

16,810 

17,020

15,360 

13,000 

11,920 

11,310 

10, 720

377,020

Suspended sediment

Mean 

concentration 

(percent)

0.45 

.49 

.35 

.31 

.34

.34 

.40 

.40 

.36 

.33 

.36 

.47 

.56 

.55 

.59 

.51 

.58 

1.10 

2.75 

1.64

1.14 

.75 

.64 

.75 

1.03

.76 

.54 

.43 

.42 

.46

--

Tons 

per 

day

126,000 

122,000 

73,500 

56,800 

61,900

64,500 

79, 800 

84,000 

70, 200 

60,200 

75,000 

121,000 

159,000 

170,000 

197,000

180,000 

212,000 

1/503,000 

1,730,000 

1,120,000

748,000 

396,000 

296,000 

340,000 

473,000 

315,000 

190,000 

138,000 

128,000 

133,000

8,423,000

September

516 

461 

409 

378 

352

364 

413 

378 

348 

442 

864 

1,360 

708 

702 

1,030 

1,370 

1,150 

1,070 

928 

828

768 

720 

674 

651 

634

612 

612 

651 

691 

744

20,828

0.13 

.10 

.10 

.12 

.04

.10 

.06 

.11 

.13 

.27 

4.12 

3.04 

2.15 

1.40 

1.16 

1.60 

.87 

.65 

.55 

.47

.36 

.25 

.25 

.21 

.20 

.19 

.19 

.20 

.22 

.25

1,810 

1,240 

1,100 

1,220 

380 

983 

669 

1,120 

1,220 

1/3,300 

1/125,000 

1/117,000 

41,100 

26, 500 

32,300 

59,200 

27,000 

18,800 

13,800 

10,500

7,460 

4,860 

4,550 

3,700 

3,420 

3,140 

3,140 

3,520 

4,100 

5,020

527,200

Total discharge for year (second-foot-days) 

Total load for year (tons) 

1,271,897

34,570,000

I/Sediment discharge computed by subdividing day.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH--Conti

Particle-size analyses of suspended sediment, water year October 

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

W, in distilled water; C, chemically dispersed; M, mechanica

Date

Oct 12

Oct 23

Oct 29

Dec 29

1?oh A

Mar 28 

Time

9:20 a. m. 

8:55 a.m. 

12:00 m. 

8:50 a. m. 

9:55 a.m. 

9:20 a. m.

9:00 a. m. 

10:00 p. m. 

1:55 p.m. 

9:30 a. m. 

11:50 a. m.

10:55 a.m. 

9:25 a. m. 

9:35 a.m. 

10:50 a. m.

10:10 a.m. 

10:20 a. m. 

9:55 a. m. 

10:40 a. m. 

3:50 p.m.

8:45 a. m. 

9:45 a. m. 

10:25 a. m. 

9:10 a.m.

4:30 p.m. 

9:20 a.m. 

3:50 p.m. 

5:30 p. m.

Mean 

discharge 

(secondfeet)

1,260 

720 

579 

640 

876 

4,400

1,500 

888 

691 

645 

552

601 

568 

640 

816

714 

1,440 

2,850 

1,740 

1,160 

651

311 

471 

1,950 

2,480

1,560 

2,380 

1,980 

3,340 

1.870

Suspended se

Mean daily 

concentration 

(percent)

1.90 

.35 

.20 

.46 

.64 

4.14

2.85 

.67 

.24 

.25 

.24

.33 

.22 

.32

.40

.37 

.52 

2.47 

1.10 

.99 

.06

.04 

.04 

1.80 

2.17

1.14 

1.40 

.95 

1.28 

.39

Weight of 

material 

in tube 

(grams)

0. 6694 

1.6471 

.8892 

1.0632 

.6946 

.9255

1. 0201 

.6241 

1. 1761 

1.5710 

.4338

.3840 

1. 1827 

.9129 

1.4395

1.2143 

1. 2307 

1.3339 

.5526 

.5327 

.1717

.1527 

.1596 

.4059 

.5561

.2720 

.4347 

.3279 

.3270 

1.4534

Percent fin

0.002

40 

3

6 

6 

29

52 

9 

3 

3

6 

18

10 

8 

22 

46 

40 

35

35 

30 

22 

39

29 

22 

24 

22 

6

0.004

48 

9

19 

29 

34

76 

41 

20 

13

8 

30

14 

11 

27 

55 

45 

41

37 

39 

30 

54

43 

30 

35 

31 

15

0.008

60 

12

27 

36

44

85 

SO 

25 

16

11 

38

18 

14 

35 

70 

61 

46

43 

51 

38 

65

52 

37 

44 

38 

19

0.016

69 

16

33 

44 

51

88 

57 

30 

20

15 

43

22 

17 

42 

78 

69 

49

48 

61 

47 

72

59 

44 

52 

50 

24
SAN JUAN RIVER BASIN--Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH Continu

Particle-size analyses of suspended sediment, water year October 1948 to 

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

W, in distilled water; C, chemically dispersed; M, mechanical

Date

AT\T 97

Matr Q

Mav 22

Mav 25

Tiilv 31 - _ _

Time

10:00 a. m. 

9:20 a. m. 

8:30 a.m. 

8:25 a.m. 

11:15 a.m. 

10:15 a.m.

3:30 p. m. 

8:15 a.m. 

8:00 a.m. 

8:10 a.m. 

2:15 p.m. 

8:20 a.m. 

8:45 a. m. 

8:10 a.m.

1:40 p. m. 

8:20 a.m. 

8:55 a.m. 

6:55 a. m. 

10:00 a. m. 

2:00 p.m. 

6:15 a.m. 

7:40 a.m. 

9:40 a. m.

11:30 a.m. 

9:30 a. m. 

8:00 a.m. 

9:45 a. m. 

10:40 a.m. 

9:25 a. m. 

9:35 a. m.

Mean 

discharge 

(secondfeet)

2,850 

3,830 

3,960 

6,890 

7,900 

10,170

9,510 

8,750 

5,940 

5,430 

8,350 

9,670 

6,450 

6,170

10,360 

6,740 

7,780 

7,710 

12,340 

23,280 

19,540 

15,360 

11,310

9,050 

8,110 

6,450 

7,250 

4,190 

3,130 

4,590 

 >. ifin

Suspended se

Mean daily 

concentration 

(percent)

0.73 

1.42 

1.05 

1.12 

1.38 

2.42

.80 

.70 

.41 

.46 

.64 

.55 

.37 

.35

.45 

.34 

.40 

.36 

.59 

2.75 

.75 

.76 

.42

.36 

.39 

.91 

1.02 

.35 

,18 

2.15 

25

Weight of 

material 

in tube 

(grams)

2.7031 

1.0227 

1. 1627 

1.6368 

1. 6862 

.9901

1. 9036 

1. 6397 

1. 7468 

1.4010 

1.0093 

2. 0549 

1. 1453 

1.0918

1. 9193 

1.4337 

1. 7420 

1. 5042 

1.2345 

1.4415 

3. 1576 

1.8077 

1. 7241

.9203 

.7156 

.4222 

.4793 

.4425 

.4954 

.7668 

.2886

Percent fine

0.002

3 

21 

15 

15 

11 

10

8 

5 

5

18 

6

4

18 

10 

9 

5

4 

8 

10 

23 

21 

8 

50 

25

0.004

13 

30 

24 

21 

16 

15

12 

7 

8

22 

9

6

25 

15 

15 

8

6 

12 

15 

37 

30 

10 

60 

36

0.008

16 

38 

33 

27 

22 

19

15 

9 

10

28 

11

7

34 

20 

21 

10

8

16 

20 

49 

37 

13 

75 

44

0.016

20 

45 

41 

32 

29 

25

19 

11 

12

30 

13

9

39 

25 

26 

13

11

20 

25 

60 

45 

17 

84 

52
Aug. 8 - -

A 

tier 14

S6Dt 22

Qont 9fl

2 9QA

552

070

411

702

AC

25

9.499.

K79Q

A7P.7

0907

oo

90

oo

OR

94

29

90

oo

54

no

54

OJ,

07

70

49
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 J

DRAINAGE AREA. 1,360 square miles.

RECORDS AVAILABLE. Chemical analyses; June 1940 to September 1949.

EXTREMES, 1948-49. Dissolved solids: Maximum, 595 parts per million Jan. 1-10; minimum, 124 parts 

Total hardness: Maximum, 382 parts per million Jan. 1-10; minimum, 98 parts per million June 21-

EXTREMES, 1940-49. Dissolved solids: Maximum, 1,500 parts per million Aug. 19, 1944; minimum, 111 

Total hardness: Maximum, 613 parts per million Aug. 19, 1944; minimum, 82 parts per million June 

REMARKS.--Records of discharge for water year October 1948 to September 1949 given in Water-Supply 

samples available in district office at Albuquerque, N. Mex.

Chemical analyses, in parts per millien, water year October 1948 to S

Date of collection

Oct. 1-10, 1948 - 

Oct 11 20

Dsc 21 31

Jan. 1-10, 1949 

Mar 21 31

May 21-31 ...

Mean 

discharge 

(secondfeet)

360 

251 

326 

321 

286 

290

242 

270 

272 

210 

344 

276

239 

240 

405 

402 

534 

471

580 

1,193 

2,501 

2,532 

2,827 

3,736

ture 

(°F)

PH

7.6 

7.7 

7.9 

7.8 

7.8 

8.0

8.0 

7.9 

8.0 

7.8 

7.8 

7.7

7.8 

7.8 

7.6 

7.7 

7.8 

7.8

7.8 

7.9 

7.9 

7.5 

7.7 

7.6

Specific 

conductance 

(micromhos at 

25° C )

651 

728 

806 

756 

768 

781

803 

775 

791 

882 

789 

808

848 

817 

701 

747 

685 

645

617 

427 

306 

297 

285 

259

Silica 

(Si02 )

8.8 

8.7 

10 

10 

11 

11

11 

9.2 

12 

14 

12 

10

12 

10 

10 

14 

13 

11

10 

9.6 

7.3 

6.9 

8.0 

7.3

Iron 

(Fe)

0.01 

.02 

.02 

.02 

.01 

.01

.01 

.01 

.01 

.02 

.02 

.02

.02 

.02 

.01 

.02 

.01 

.02

.02 

.02 

.04 

.04 

.05 

.03

Calcium 

(Ca)

85 

93 

99 

101 

102 

106

108 

105 

106 

122 

106 

112

120 

113 

90 

98 

89 

87

81 

60 

45 

43 

41 

38

Magnesium 

(Mg)

14 

17 

15 

17 

16 

17

17 

16 

16 

19 

17 

17

18 

17 

14 

17 

17 

17

18 

11 

7.4 

6.6 

6.2 

5.8

Sodium 

(Na)

Potassium 

(K)

37 

41 

52 

40 

40 

41

43 

41 

46 

48 

42 

43

40 

44 

39 

40 

33 

30

24 

14 

7.6 

9.2 

9.4 

8.0

Bicarbonate 

(HCO3 )

169 

177 

184 

192 

191 

203

208 

194 

194 

222 

190 

200

204 

192 

169 

186 

182 

181

172 

146 

114 

115 

111 

102

Sulfate 

(SO,)

175 

206 

228 

211 

209 

213

218 

215 

226 

253 

228 

233

246 

244 

196 

210 

179 

171

160 

89 

56 

52 

48 

44

Chlo

ride 

(Cl)

20 

21 

22 

22 

22 

23

24 

22 

24 

26 

21 

23

24 

23 

16 

20 

18 

16

12 

7

4

3

4

3
June 11-17, 19-20 

June 18 _!/ -----

Sept. 21-30 

Weighted average- -

3,019 

7,140

5,645 

3,137 

1,919 

1,101

730 

476 

205 

55 5 

172 

143

1,189

7.1 

7.0

7.0 

7*4 

7.5 

7.6

7.6 

7.7 

7.4 

7.4 

7.4 

7.6

--

258 

225 

432 

217 

228 

289 

381

505 

590 

717 

866 

815 

841

347

5.9 

6.9

6.1 

5.7 

6.0 

7.0

9.0 

8.4 

9.4 

11 

13 

11

6.4

.03

.04

.04 

.01 

.02 

.01

.01 

.01 

.02 

.02 

.02 

.02

0.03

37 

33 

62 

32 

32 

40 

51

69 

80 

91

in

108 

108

49

5.5 

4.5 

13 

4.2 

5.9 

6.7 

8.1

11 

13 

17 

21 

19 

20

7.7

6.0 

5.5

4.1 

5.5 

9.4 

17

25 

29 

39 

51 

44 

49

13

96 

88 

160 

80 

79 

91 

115

148 

163 

172 

201 

200 

199

113

41 

34 

86 

34 

44 

62 

86

125 

152 

199 

263 

233 

245

74

3

3

2

3

5

9

13 

16 

22 

24 

25 

27

6

I/ Discharge included in discharge reported for June 11-17, 19-20.
476 COLORADO RIVER BASIN

PARIA RIVER BASIN Continued 

PARIA RIVER AT LEES FERRY, ARIZ.--Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

o

g

g

12

18

20 

91

<JQ

Oft

00

31 

Total1 

2

g

12

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

50 

52 

54 

55 

50

50 

47 

49 

65 

49 

48 

41 

41 

45 

34

31 

27 

28 

31 

30 

30 

26 

24 

21 

17 

15 

14 

15 

15 

13

1,067

Suspended sediment

Mean 

concentration 

(percent)

0.50 

.72 

.75 

1.69 

4.51

2.56 

3.64 

2.21 

1.55 

1.82 

1.93 

1.88 

1.45 

1.50 

1.35

.78 

.66 

.68 

.48 

.44 

.65 

.76 

.41 

.52 

.27

.27 

.42

.44 

.31 

.29

Tons 

per 

day

675 

1,010 

1,000 

2/2, 650 

2/6, 100

2/3, 760 

2/4,820 

2/3,000 

2,720 

2/2,460 

2/2,620 

2,080 

1,610 

1,820 

1,240

653 

481 

514 

402 

356 

526 

534 

266 

295 

124

109 

159 

178 

126 

102

42,480

July

3.7 

3.7 

4.0 

4.8 

4.0 

3.7 

3.4 

2.8 

2.0 

2.8 

47 

26 

26 

12 

4.8 

4.0 

3.0 

3.0 

3.0 

3.4

3.4 

3.4 

4.4 

4.8 

4.4 

4.0 

4.0 

4.0 

4.0 

4.0 

3.4

210.9

0.02 

.01 

0 

I/. 01 

0

.01 

0 

0 

0 

1/0 

9.85 

14.1 

10.0 

4.80 

3.20

2.40 

.30 

.04 

.03 

.01

.01 

.01 

.03 

.01 

.01 

0 

0 

.01 

.01 

.01 

.01

--

2 

1

0 

1 

0 

1 

0 

0 

0 

0

2/21, 700 

2/11, 200 

7,020 

1,560 

415

259 

24 

3 

2 

1

1 

1 

4

1 

1

0 

0 

1 

1 

1 

1

42,200

Total discharge for year (second-foot-da] 

Total load for year (tons) -- 

May

Mean

charge 

(secondfeet)

14 

9.2 

7.6 

7.0 

6.2

5.4 

5.8 

6.5 

5.4 

4.8 

4.8 

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

9.4 

26 

18 

14 

11 

9.8 

6.5 

5.4

4.4 

4.4 

4.4 

3.7 

3.7 

3.7

231.7

Suspended sediment

Mean 

concentration 

(percent)

0.43 

.21 

.09 

.05 

.02

.01 

.01 

.01

. 0

.01 

.09 

.32 

.17 

.08 

.02 

.01 

.01

}'

Tons 

per 

day

14 

52 

18 

9 

3 

1 

2 

2

0

3 

63 

156 

64 

24 

5 

2 

1

0

419

August

3.0 

3.0 

3.0 

3.7 

6.2

5.1 

16 

188 

243 

58

22

17 

12 

9.8 

8.7 

6.2 

4.8 

4.4 

3.7 

3.4 

3.4 

3.7 

4.8 

4.8 

36

17 

6.5 

'5.1 

4.0 

3.7 

3.7

713.7

 0.01

1.27 

26.2 

19.3 

12.0

6.90 

3.28 

1.16 

.28 

.07

.03 

.02 

.01

0

7.73

8.16 

4.60 

1.50 

.09 

.03 

.01

--

1

2/1,420 

2/203,000 

2/145, 000 

2/19,100

4,100 

1,510 

376 

74 

16 

5 

3 

1

0

2/14,100

1/4, 280 

807 

207 

10 

3 

1

394,000

Tune

Mean

charge 

(secondfeet)

3.7 

3.4 

3.7 

5.1 

113 

154 

253 

80 

f 187 

74 

45 

62 

49 

32 

22

15 

11 

60 

291 

66 

30 

20 

18 

12 

23 

12 

8.2 

6.5 

4.8 

3.7

1, 668. 1

Suspended sediment

Mean 

concentration 

(percent) ! 

8.48

6.32 

14.3 

6.75 

13.4 

4.63 

2.20 

2.32 

2.30 

4.10 

1.12

.28 

.15 

6.42 

33.2 

13.0 

4.35 

1.40 

.40 

.19 

.30

.25 

.10 

.08 

.06 

.02

Tons 

per 

day

0

2/27,300

2/26,400 

2/100, 000 

2/15,600 

2/96, 500 

2/9,470 

2,670 

2/4, 000 

3,040 

3,540 

665

113

45 

2/15,700 

2/43,000 

2/26, 100 

3,520 

756 

194

e; 

m

155 

22 

14

a 

i

679J60

September

3.4 

3.4 

3.4 

3.7 

4.0 

4.0 

4.0 

4.0 

6.2 

19

36 

25 

26 

112 

24

18 

14 

9.8 

f 7.6 

6.5

7.0 

7.6 

8.2 

7.6 

8.2

10 

9.2 

11 

675 

101

1, 178. 8

0.01

.61 

.91

2.78 

2.96 

2.40 

9 22

e!78

4.10 

2.32 

.56 

.07 

.02

.03 

.02

.45 

29.0 

11.5

--

2/25 

2/4E

2/2,93 

2/2, Of 

l,6t 

2/32, 7( 

4,3*

1,9 

8 

1

^

>

2/4M 

2/11, OM) 

2)83,600

852,600

s) 9,873.9

_____________ 2,162,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
June 11-17, 19-20 

Weighted average 

3 019

7,140

1 919

1 43

1,189

7.0

7

B

"

225

4QQ

001

347

6.9

6.4

.04

no

no

0.03

07

33

m

49

4.5

iq

8 1

7.7

5.5

on

13

no

88

113

34

00

74

o

9

_!/ Discharge included in discharge reported for June 11-17, 19-20.
PARIA RIVER BASIN 

PARIA RIVER AT LEES FERRY, ARIZ.

Location. At gaging station, half a mile upstream from mouth and 1 mile northwest of Lees Ferry.

DRAINAGE AREA.--1,570 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1949.

Sediment records; October 1947 to September 1949. 

EXTREMES, 1948-49:--Dissolved solids: Maximum, 2,360 parts per million Sept. 15; minimum, 374 parts 

Total hardness: Maximum, 1,320 parts per million Sept. 15; minimum, 244 parts per million June 1

Sediment loads: Maximum, 771,000 tons per day Sept. 29; minimum, 0 tons per day on many days. 

EXTREMES, 1947-49.--Dissolved solids: Maximum, 2,360 parts per million Sept. 15, 1949; minimum, 337 

Total hardness: Maximum, 1,320 parts per million Sept. 15, 1949; minimum, 212 parts per million 

Sediment loads: Maximum, 775,000 tons per day Aug. 5, 1948; minimum 0 tons per day on many days.

REMARKS. Samples for chemical analyses collected twice monthly. Records of discharge for water yea

Paoer 1149

' Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Dec 17

Jan 3 1949

Mar 1

Mar 15

Aug. 15 -

Sent IS -

Mean 

discharge 

(secondfeet)

14 

6.2 

65 

19

14 

18 

13 

21

10 

20 

137 

43

50 

34 

14 

5.1

3.7 

22 

3.7 

4.8

3.0 

8,7 

3.4 

24

pH

Specific 

conductance 

(micromhos at 

25" C )

853 

913 

2,130 

1,350

1,080 

1,350 

1,850 

1,220

1,610 

1,350 

1,440 

1,480

1,450 

1,420 

1,090 

746

609 

1,440 

884 

1,920

, 636 

1,500 

795 

9 AUft

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

106 

102 

319 

109

92 

114 

168 

112

145 

120 

138 

122

118 

104 

78 

59

50 

161 

90 

232

61 

167 

82 

»7fi

Magnesium 

(Mg)

28 

54 

56 

63

48 

59 

86 

52

68 

58 

35 

51

56 

59 

50 

36

29 

69 

35 

53

27 

59 

28 

94

Sodium 

(Na)

Potassium 

(K)

56 

99 

144 

106

83 

111 

155 

92

132 

110 

162

157

144 

141 

98 

48

35 

60 

55 

161

34 

96 

51 

241

Bicarbonate 

(HCOS)

317 

164 

259 

186

195 

195 

258 

198

244 

224 

212 

203

188 

169 

168 

136

147 

211 

158 

227

135 

172 

145 

4ns

Sulfate 

(S04)

214 

505 

1,060 

549

400 

551 

816 

480

658 

537 

611 

626

621 

612 

427 

254

169 

583 

319 

895

198 

663 

277 

1.420

Chloride 

(Cl)

12 

21 

16 

24

19 

23 

32 

20

28 

23 

19 

24

24 

22 

20 

16

14 

23 

16 

19

12 

23 

13

25

^/Reported boron concentration is less than figure indicated.
PARIA RIVER BASIN

PARIA RIVER BASIN Continued 

PARIA RIVER AT LEES FERRY, ARIZ. Continued 

Suspended sediment, water year October 1948 to September 1949

Day

If

g

11 ______ 

12 

IS 

15 

is ______

3t- 

.14.. 

S3 - 

a*- - --

25 

_R 

28- 

",qR'X

>i- -- 

October

Mean

charge 

'secondfeet)

14 

8.2 

5.8 

8.9 

14 

5.4 

4.8 

5.1 

8.7 

8.7 

8.2 

7.6 

7.6 

7.6 

6.2

6.5 

6.5 

7.6 

8.2 

9.2 

9.8 

8.7 

7.6 

7.6 

7.6

8.2 

8.7 

10 

IS 

37 

160

439

Suspended sediment

Mean 

concentration 

(percent)

5.90 

2.73 

1.23 

.46 

.58 

. 19 

.06 

.02 

.02

.01

0

.05 

6.96

Tons 

per 

day

2,230 

604 

193 

111 

22 

28 

8 

3 

5

2

0

50 

2/43, 000

46, 280

January

1 - «

*.--,-.,-

£,-. 

7 ____ 

S 

?

;d .

U-- 

a. 

J3 

14 

15 

ie- -- 

if ....

i*.- 

jsi,,.-.-.,

41 .-._

*- ..- 

;*?.--,- , 

'_4- ~-

JsJ- .. 

IV- 

*»*.... - 

V--» 

5i-~ .

*~iK- 1'

19 

22 

13 

9.2 

8.2

',3

"e*. .- H 

U

J3 

sS 

-I

30 

IS

i&

4* 

'-< 

is

«, ??. 

£? g

; r, !..-*;. ...

0.01 

I/. 02 

.04 

.01 

I/. 02 

.02 

.02 

.01 

.01 

.02

.03 

.02 

.04 

.02 

.04

03 

09 

.06

S3

.

'* 

.*?,

.! »

m 

»

,13

12

14

4 

4 

4 'i 

2 

6 

9 

6 

14

23

16 

44 

26 

9 

10 

15 

4 

15 

11 

6 

12 

6 

11 

, 23 

1 36 

i 32

390

November

Mean

charge 

secondfeet)

65 

32 

27 

23 

22 

18 

18 

18 

14 

14

20 

22 

18 

18 

19

20 

18 

18 

17 

18

18 

19 

19 

22 

23 

21 

20 

11 

10 

10

612

Suspended sediment

Mean 

concentration 

(percent)

3.90 

2.40 

.92 

.48 

.19 

.01 

.03 

.04 

.04 

.05

.03 

.08 

.07 

.04 

.02

.01 

.02 

.02 

.02 

.02

.02 

.03 

.06 

.05 

.04 

.05 

.04 

.02 

.01 

.02

Tons 

per 

day

6,840 

2,070 

671 

298 

113 

5 

15 

19 

15 

19

16 

48 

34 

19 

10

5 

10 

10 

9 

10

10 

15 

31 

30 

25

28 

22 

6 

3 

5

10,410

February

10 

13 

10 

9.0 

12

11 

16 

18 

15 

14

15 

23 

19 

17 

19

19 

20 

23 

23 

25

26 

32 

48 

66 

110 

120 

134 

191

1,058.0

0.14 

.13 

.13 

.14 

.23

I/. 12 

.05 

.04 

.06 

. 11

.14 

.04 

.04 

.08 

.05

I/. 07 

.06 

.04 

.04 

.06

.03 

.10 

.10 

.70 

1.70 

1.56 

1.78 

3.83

38 

46 

35 

34 

75

36 

23 

19 

24 

42

57 

25 

21 

37 

26

36 

32 

25 

25 

40 

21 

86 

130 

1,250 

5,050 

5,050 

6,440 

2/21,200

39,920

December

Mean

charge 

secondfeet)

14 

29 

21 

20 

16 

11 

11 

15 

20 

20

22 

32 

30 

25 

25

21

18 

25 

15 

14

18 

23 

24 

11 

5.4

9.8 

8.2 

12 

8.7 

15 

22

561. 1

Suspended sediment

Mean 

concentration 

(percent)

0.01 

.11

.07 

.06 

1/.05 

.04 

.03 

.03 

.02 

.07

.09 

.10 

.17 

. 17 

.14

.05 

.02 

.03 

..04 

.04

.03 

.02 

.04 

.03 

I/. 02

.01 

.01 

.01 

.01 

.04 

.01

Tons 

per 

day

4 

133 

40 

32 

22 

12 

9 

12 

11 

38

53 

86 

138 

115

94

28 

10 

20 

16 

15

15 

12 

26 

9 

3

3 

2 

3 

2 

16 

6

985

March

137 

73 

73 

85 

93

85 

68 

65 

48 

37

46 

50 

45 

43 

43

46 

49 

53 

49 

56

66 

41 

55 

48 

31 

23 

19 

18 

46 

46 

37

1,674

2.73 

1.18 

.76 

.84 

1/1.15 

1.39 

1.10 

1.04 

.90 

.45

.45 

1. 15 

1.05 

.65 

.55

.83 

1.56 

1.65 

1.83 

1.80 

1.84 

1.50 

.95 

1.00 

.32 

.12 

.16 

.06 

.65 

.25 

.50

2/10, 900 

2,330 

1,500 

1,930 

2,890

3,190 

2,020 

1,830 

1,170 

450

559 

1,550 

1,280 

755 

639

1,030 

2,060 

2,360 

2,420 

2,720

3,280 

1,660 

1,410 

1,300 

268 

75 

82 

29 

807 

310 

500

53,300

 jbdmding day.
COLORADO RIVER BASIN

PARIA RIVER BASIN Continued 

PARIA RIVER AT LEES FERRY, ARIZ. Continued 

Suspended sediment, water year October 1948 to September 1949 Continued

Day

1 

2------

3 _ _ __

4 

5 

6------

7_ _ ___

------

g_ __ > 

10 

11 

12 __ _

13 ____

14 

15 

16 

17 

Ifl lo -- 

1Q_ __ _ __

20 -

21 

22 ------

23 _ ,_. _ _

24 

25_ _ __._

26 -

27_ __ __

28------

29 _ 

3Q __ __ __ .

31 

Total1 

2 

3 -«.__ 

4 ,-

5 

7 

--- 

9 

10 

11 

f 0 ___ ._ __

1010- --- 

14 

15 

16 

17 

lo- Ifl - 

19 

20 

21 

22- __ __

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalApril

Mean 

discharge 

(secondfeet)

50 

52 

54 

55 

50

50 

47 

49 

65 

49 

48 

41 

41 

45 

34

31 

27 

28 

31 

30 

30 

26 

24 

21 

17 

15 

14 

15 

15 

13

1,067

Suspended sediment

Mean 

concentration 

(percent)

0.50 

.72 

.75 

1.69 

4.51

2.56 

3.64 

2.21 

1.55 

1.82 

1.93 

1.88 

1.45 

1.50 

1.35

.78 

.66 

.68 

.48 

.44 

.65 

.76 

.41 

.52 

.27 

.27 

.42 

.44 

.31 

.29

-

Tons 

per 

day

675 

1,010 

1,080 

2/2, 650 

2/6, 100

2/3, 760 

2/4,820 

2/3,000 

2,720 

2/2,460 

2/2, 620 

2,080 

1,610 

1,820 

1,240

653 

481 

514 

402 

356 

526 

534 

266 

295 

124

109 

159 

178 

126 

102

42,480

July

3.7 

3.7 

4.0 

4.8 

4.0 

3.7 

3.4 

2.8 

2.0 

2.8

47 

26 

26 

12 

4.8

4.0 

3.0 

3.0 

3.0 

3.4 

3.4 

3.4 

4.4 

4.8 

4.4

4.0 

4.0 

4.0 

4.0 

4.0 

3.4

210.9

0.02 

.01 

0 

I/. 01 

0

.01 

0 

0 

0 

1/0 

9.85 

14. 1 

10.0 

4.80 

3.20

2.40 

.30 

.04 

.03 

.01

.01 

.01 

.03 

.01 

.01

0 

0 

.01 

.01 

.01 

.01

2 

1 

0 

1 

0 

1 

0 

0 

0 

0

2/21, 700 

2/11,200 

7,020 

1,560 

415

259 

24 

3 

2 

1

1 

1 

4 

1 

1

0 

0 

1 

1 

1 

1

42, 200

Total discharge for year (second-foot-da' 

Total load for year (tons) 

May

Mean

discharge 

(secondfeet)

14 

9.2 

7.6 

7.0 

6.2

5.4 

5.8 

6.5 

5.4 

4.8 

4.8 

5.1 

5.1 

5.1 

5.1

5.1 

5.1 

9.4 

26 

18 

14 

11 

9.8 

6.5 

5.4

4.4 

4.4 

4.4 

3.7 

3.7 

3.7

231.7

Suspended sediment

Mean 

concentration 

(percent)

0.43 

.21 

.09 

.05 

.02 

.01 

.01 

.01

0

.01 

.09 

.32 

.17 

.08 

.02 

.01 

.01

 0

Tons 

per 

day

14 

52 

18 

9 

3 

1 

2 

2

0

3 

63 

156 

64 

24 

5 

2 

1

0

419

August

3.0 

3.0 

3.0 

3.7 

6.2

5.1 

16 

188 

243 

58

22 

17 

12 

9.8 

8.7

6.2 

4.8 

4.4 

3.7 

3.4

3.4 

3.7 

4.8 

4.8 

36

17 

6.5 

'5.1 

4.0 

3.7 

3.7

713.7

0.01

1.27 

26.2 

19.3 

12.0

6.90 

3.28 

1.16 

.28 

.07

.03 

.02 

.01

0

7.73

8.16 

4.60 

1.50 

.09 

.03 

.01

1

2/1,420 

2/203,000 

2/145,000 

2/19, 100

4,100 

1,510 

376 

74 

16 

5 

3 

1

0

2/14,100

2/4, 280 

807 

207 

10 

3 

1

394,000

June

Mean

discharge 

(secondfeet)

3.7 

3.4 

3.7 

5.1 

113 

154 

253 

80

r 187

74 

45 

62 

49 

32 

22

15 

11 

60 

291 

66 

30 

20 

18 

12 

23 

12 

8.2 

6.5 

4.8 

3.7

1, 668. 1

Suspended sediment

Mean 

concentration 

(percent)

) 

8.48

6.32 

14.3 

6.75 

13.4 

4.63 

2.20 

2.32 

2.30 

4.10 

1.12

.28 

.15 

6.42 

33.2 

13.0 

4.35 

1.40 

.40 

.19 

.30

.25 

.10 

.08 

.06 

.02

-

Tons 

per 

day

0

2/27,300

2/26,400 

2/100,000 

2/15, 600 

2/96, 500 

2/9,470 

2,670 

2/4,000 

3,040 

3,540 

665

113 

45 

2/15, 700 

2/43,000 

2/26, 100 

3,520 

756 

194 

62 

186 

155 

22 

14 

8 

2

679, 100

September

3.4 

3.4 

3.4 

3.7 

4.0

4.0 

4.0 

4.0 

6.2 

19

36 

25 

26 

112 

24 

18 

14 

9.8

r 7.6

6.5

7.0 

7.6 

8.2 

7.6 

8.2 

10 

9 2

11

675 

101

1, 178. 8

0.01

.61 

.91

2.78 

2.96 

2.40 

9.22 

6.78

4. 10 

2.32 

.56 

.07 

.02

.03 

.02

.45 

29.0 

11.5

1

2/236 

2/4E7

2/2,930 

2/2,080 

1,680 

2/32, 700 

4,390

1,990 

877 

148 

14 

4

6 

5

2/464 

2/171,000 

2/33,600

852,600

fs\ ___ _______ _____ __ - ___ - 9,873.9

. _____ ____ __ ___ - 2,162,000

I/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
BRIGHT ANGEL CREEK BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN BRIGHT ANGEL CREEK BASIN IN ARIZONA 

Chemical analyses, in parts per million, water year October 1948 to September 1949

Date of collection

Mean 

discharge 

(secondfeet)

Temperature (°F) pH Specific conduct- ance (micro- mhos at 

25" C)

Silica 

(SiO,)

Iron (Fe)

Calcium (Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(SO,)

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,)

Boron 

(B)

Dissolved solids

Parts 

per million

BRIGHT ANGEL CREEK NEAR GRAND CANYON

Sept. 19 ~ 

17 18 

22 

21 24

68 

26 

17 17 17

342 362 317 

364 378

354 

342 

353 337 369

53 15

222 

226 

196 

227 218

221 208 216 

210 222

10 

5

Tons 

per 

acrefoot

Tons 

per day

Hardness as CaCO,

Total

Noncarbonate

Persodium
VIRGIN RIVER BASIN 

VIRGIN RIVER AT LITTLEFIELD, ARIZ.

LOCATION.--At gaging station three-eighths of a mile downstream from Beaverdam, Wash., three-eighths of a mile upstream from Littlefield, Mohave County,

and 36 miles upstream from water line of Lake Mead at elevation 1.221 feet above mean sea level. 

DRAINAGE AREA.--5,090 square miles. 

RECORDS AVAILABLE. Chemical analyses: July to September 1949.

Water temperatures: October 1947 to September 1949 Sediment records: October 1947 to September 1949. 

EXTREMES, 1948-49. Water temperatures: Maximum, 83°F June 12; minimum, 35°F Jan. 4. Sediment loads: Maximum, 170,000 tons per day Sept. 10; minimum, 42 tons per day Oct. 12. 

EXTREMES, 1947-49. Water temperatures: Maximum, 86 °F July 15, 1948; minimum, 35°F Jan. 4, 1949. ',' Sediment loads: Maximum, 170,000 tons per day Sept. 10, 1949; minimum, 36 tons per day Oct. 1, 3, 5, 1947 REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply Paper 1149.

Chemical analyses, in parts per million, July to September 1949

Date of collection

July 1-10, 1949 

Mean 

discharge 

(secondfeet)

94.6 

63.4 62. 7 

63.2 62.5 67.1 

146 105 102

Temperature <°F) PH

7.6 7.5 7.7

Specific conductance (micromhos at 

25° C )

3,060 3,190 

3,190 3,140 

3,170 3,150 3,160 3,270 3,200

Silica (SiO,)

28 24 

24

Iron 

(Fe)

0.06 

.07

Calcium 

(Ca)

329 

336 379

Magnesium 

(Mg)

117 115 103

Sodium

(Na)

Potassium 

(K)

280 

267 

270

Bicarbonate 

(HCOS )

244

272

282

Sulfate 

(SO,)

1,140

1,1201,180

Chloride 

(Cl)

370

355350

Fluoride 

(F)

0.7

.7-- Ni- trate (NO,) 0.9 1.3 2.8 Bo- ron (B) 0.0808

- Dissolved solids Parts per mil- lion 2,390 2,350 2,450 Tons per acre- foot 3.25 3.20 3.33 Tons per day409 397 695 Hardness as CaCOj Total 1,300 1,310 1,370 Non- carbon- ate 1,100 1,090 1,140 Per- cent so- dium323130
Temperature (°F) of water, water year October 1948 to September 1949 [Once-daily temperature measurement at approximately 9 a. m. or earlieT]

Day

1 ...................

2 -- --- 13 . . ........

18 --- 1 Q99OQ25 --- - 27 .... ...

AQon

Q1

October

68

CP

1 /79.

ft7

ftl

ftQCOft9

fin

Anfti

1 /ftQ

CO

oz

November

57

53

53

52CQCO53en

CO

49dfi

December

50

AQ

Ae.

AQ

AQ

49

EQ

49XQ

January

47

393939

1/411/43

42

on

42

1/44

1/44

10QD

39

February

39

4242

4342

4949

CO

March

48

51

53CO

1/64

i /fti

5454

1 /en

c«COEQ

April

54C7

en

59en57An6261

6269

May

59d59

EQ

AH626666

686970696564

63

June

64 6464

68an

70

ft/QO

1/832/75

2/80

70

6974

1/76

71

67

July

69

70

72

73

2/81

74

7071

7072

69

696869

72

August

71 

72

7Q

676565

2/79

65656868

7074

6866

65677467

68

September

70

£7

66

1/712/74

69

6561

6665

1/80

1/81

68

66

6566

1/75

64

62

I/Reading obtained between 9 a. m. and 5 p. m. 

2/Reading obtained 5 p. m. or later.
480 COLORADO RIVER BASIN

VIRGIN RIVER BASIN Continued

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued

Suspended sediment, water year October 1948 to September 1949

Day

g

12

15 

1Q

19

99

25

op

Total2

Q

13

18

20 - 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

TotalOctober

Mean 

discharge 

(secondfeet)

68 

68 

68 

70 

72 

72 

70 

72 

74 

76 

78 

78 

80 

82 

82 

82 

84 

86 

99 

124

117 

117 

110 

112 

114

110 

112 

120 

120 

137 

260

3,014

Suspended sediment

Mean 

concentration 

(percent)

0.15 

.06 

.12 

.12 

.05

.07 

.07 

.04 

.05 

.03 

.03 

.02 

.02 

.04 

.04 

.03 

.02 

.02 

.24 

I/. 43

.41 

.25 

.28 

.19 

.20

.15 

.21 

.22 

.23 

.29 

.66

Tons 

per 

day

275 

110 

220 

227

97

136 

132 

78 

100 

62

63 

42 

43 

89 

89 

66 

45 

46 

642 

1,440 

1,300 

790 

832 

575 

616

446 

635 

713 

745 

1,070 

4,630

16,350

January

188 

191 

153 

145 

145 

164 

179 

191 

204 

207

204 

201 

234 

271 

241

207 

176 

179 

201 

234

259 

231 

267 

249 

197 

2lO 

210 

207 

207 

204 

207

6,363

0.30 

.35 

.21 

.24 

.27 

.24 

.25 

.33 

.27 

.17 

.22 

.21 

.43 

.65 

.61

.46 

.25 

.31 

.28 

.43

.63 

.44 

.47 

.42 

.24

.36 

.29 

.27 

.26 

. 28 

.23

--

1,520 

1,800 

868 

940 

1,060

1,060 

1,210 

1,700 

1,490 

950

1,210 

1,140 

2,720 

4,760 

3,970 

2,570 

1,190 

1,500 

1,520 

2,720

4,410 

2,740 

3,390 

2,820 

1,280

2,040 

1,640 

1,510 

1,450 

1,540 

1,290

60,010

November

Mean 

discharge 

(second - 

feet)

197 

179 

164 

191 

176

182 

179 

179 

176 

156

167 

156 

159 

159 

156 

156 

159 

134 

132 

134

142 

159 

153 

145 

153 

164 

148 

140 

148 

145

4,788

Suspended sediment

Mean 

concentration 

(percent)

0.55 

.42 

.32 

.49 

.30

.32 

.31 

.31 

.28 

.25 

.25 

.21 

.23 

.21 

.19 

.19 

.20 

.20 

.15 

.14

.16 

.22 

.20 

.17 

.21

.21 

.24 

. 16 

.21 

.17

Tons 

per 

day

2,930 

2,030 

1,420 

2,530 

1,430

1,570 

1,500 

1,500 

1,330 

1,050

1,130 

885 

987 

902 

800 

800 

859 

724 

535 

507

613 

944 

826 

666 

868

930 

959 

605 

839 

666

33,340

February

201 

201 

204 

207 

238

197 

210 

201 

179 

182

194 

194 

194 

182 

185

182 

182 

185 

210 

256

337 

361 

554 

480 

390

395 

315 

425

7,241

0.33 

.21 

.26 

.34 

.45 

.30 

.27 

.30 

.20 

.26

.33 

.33 

.27 

.24 

.21

.19 

.22 

.28 

.34 

.47 

.65 

.62 

1.32 

1.32 

.95

.81 

.72 

.92

1,790 

1,140 

1,430 

1,900 

2,890

1,600 

1,530 

1,630 

967 

1,280

1,730 

1,730 

1,410 

1,180 

1,050

934 

1,080 

1,400 

1,930 

3,250

5,910 

6,040 

19, 700 

17, 100 

10,000

8,640 

6,120 

10,600

116,000

December

Mean

charge 

(secondfeet)

150 

153 

140 

150 

140 

148 

148 

156 

164 

176 

164 

167 

176 

161 

156 

150 

148 

148 

148 

145

137 

142 

170 

176 

161

167 

185 

282 

185 

182 

179

5,054

Suspended sediment

Mean 

concentration 

(percent)

0.18 

.18 

.20 

.21 

.17

.23 

.17 

.25 

. 28 

.25

.27 

.25 

.30 

.26 

.31 

.21 

.22 

.22 

.22 

.22

.20 

.20 

.36 

.44 

.22

.26 

.36 

.57 

.31 

.33 

.27

Tons 

per 

day

729 

744 

756 

850 

643 

919 

679 

1,050 

1,240 

1, 190

1,200 

1,130 

1,430 

1,130 

1,310 

850 

879 

879 

879 

861

740 

767 

1,650 

2,090 

956

1,170 

1,800 

4,340 

1,550 

1,620 

1,300

37^330

March

400 

271 

267 

271 

302

345 

286 

282 

259 

249

252 

267 

224 

234 

252

259 

267 

275 

245 

341

490 

324 

354 

350 

302

252 

231 

220 

328 

275 

220

8,894

1.08 

.48 

.36 

.35 

.46 

.45 

.38 

.36 

.33 

.32

.31 

.36 

.35 

.33 

.36

.30 

.35 

.37 

.36 

I/. 50 

.70 

.43 

.40 

.43 

.37

.33 

.32 

.25 

.45 

.31 

.28

--

11,700 

3,510 

2,600 

2,560 

3,750 

4,190 

2,930 

2,740 

2,310 

2,150

2,110 

2,600 

2,120 

2,080 

2,450

2,100 

2,520 

2,750 

2,380 

4,600

9,260 

3,760 

3,820 

4,060 

3,020

2,250 

2,000 

1,480 

3,990 

2,300 

1,660

101, 800

I/Estimated or interpolated.
VIRGIN RIVER BASIN 481

VIRGIN RIVER BASIN Continued 

VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued 

Suspended sediment, water year October 1948 to September 1949--Continued

Day

5 

17

24 

25 

9*7

Oft

31

Total12

10

19

21

23 - 

24 

25 

26 

27 

28 ------ 

29 

30 ----- - 

31 

TotalApril

Mean

charge 

(secondfeet)

267 

306 

294 

290 

259

271 

298 

350 

548 

440

410 

400 

420 

415 

415 

390 

405 

485 

496 

520

597 

693 

830 

986 

866

761 

740 

782 

740 

698

15,372

Suspended sediment

Mean 

concentration 

(percent)

0.26 

.44 

.34 

.33 

.28

.28 

.41 

.42 

.69 

.65

.57 

.53 

.56 

.58 

.52 

.56 

.43 

.60 

.56 

.67

.75 

.85 

1.13 

1.08 

.98

.78 

.75 

-.85 

.75 

.58

Tons 

per 

day

1,870 

3,640 

2,700 

2,580 

1,960

2,050 

3,300 

3,970 

10,200 

7,720

6,310 

5,720 

6,350 

6,500 

5,830 

5,900 

4,700 

7,860 

7,500 

9,410

12, 100 

15,900 

25,300 

28, 800 

22, 900

16,000 

15,000 

17,900 

15,000 

10,900

285,900

July

68 

68 

70 

95 

188

145 

103 

74 

70 

65

65 

65 

63 

63 

63

63 

63 

63 

63 

63 

63 

63 

63 

62 

62 

63 

63 

63 

63 

62 

63

2,270

Total discharge to 

Total load for yeai

0.06 

.10 

.12 

2.40 

2.60

3.30 

1.00 

.34 

. 15 

.08

.09 

.05 

.08 

.06 

.08

.05 

.08 

.07 

.04 

.04

.06 

.04 

.05 

.04 

.03 

.08 

.07 

.08 

.07 

.07 

.08

--

110 

184 

227 

6,160 

13,200

12, 900 

2,780 

679 

284 

140 

158 

88 

136 

102 

136 

85 

136 

119 

68 

68

102 

68 

85 

67 

50 

136 

119 

136 

119 

117 

136

38,900

r year (second-foot-day

May

Mean

charge 

(secondfeet)

592 

550 

616 

658 

532 

410 

336 

358 

422 

405 

368 

306 

286 

302 

336 

324 

252 

834 

920 

838

904 

726 

604 

450 

390

336 

302 

241 

191 

170 

161

14, 120

Suspended sediment

Mean 

concentration 

(percent)

0.50 

.44 

.58 

.58 

.42

.30 

.23 

.32 

.32 

.32

.26 

.22 

.22 

.23 

.21 

.27 

.17 

.85 

.78 

.60

.60 

.47 

.34 

.33 

.24

.21 

.20 

.16 

.17 

. 10 

.09

Tons 

per 

day

7,990 

6,530 

9,650 

10,300 

6,030

3,320 

2,090 

3,090 

3,650 

3,500

2,580 

1,820 

1,700 

1,880 

1,910 

2,360 

1,160 

19, 100 

19,400 

13,600

14, 600 

9,210 

5,540 

4,010 

2,530

1,910 

1,630 

1,040 

877 

459 

391

163,900

August

65 

63 

63 

63 

63

63 

63 

63 

63 

63

62 

62 

63 

62 

62

62 

62 

62 

63

65

65 

68 

67 

67 

67 

67 

67 

68 

68 

67 

67

1,995

0. 12 

.08 

.07 

.06 

.06

.07 

.09 

.08 

.08 

.06 

.08 

.08 

.06 

.09 

.10

.07 

.06 

.10 

.06 

.08

.13 

.10 

.08 

.08 

.08 

.07 

.09 

.06 

.12 

.08 

.08

--

211 

136 

119 

102 

102

119 

153 

136 

136 

102

134 

134 

102 

151 

167

117 

100 

167 

102 

140 

228 

184 

145 

145 

145 

127 

163 

110 

220 

145 

145

4,390

June

Mean

charge 

(second - 

feet)

153 

132 

120 

170 

332

589 

691 

648 

504 

405

279 

227 

210 

179 

145 

108 

80 

. 80 

80 

99

70 

74 

74 

72 

72

70 

72 

70 

68 

68

5,941

Suspended sediment

Mean 

concentration 

(percent)

0.13 

.10 

.16 

.19 

.35

.95 

.70 

1.95 

4.40 

4.60

1.45 

.72 

.59 

.49 

.24 

.19 

.17 

.19 

.21 

.58

.30 

.17 

.13 

.11 

.11

.10 

.14 

. 12 

.09 

.06

Tons 

per 

day

537 

356 

518 

872 

3,140

2/18, 600 

13, 100 

34, 100 

60,000 

50, 000

10,900 

4,410 

3,350 

2,370 

940 

554 

367 

410 

454 

1,550

567 

340 

260 

214 

214

189 

272 

227 

165 

110

209, 100

September

67 

67 

67 

65 

65

65 

67 

161 

67 

769

222 

122 

94 

112

99

84 

84 

78 

78 

78

78 

78 

78 

76 

78 

80 

82 

136 

135 

204

3,536

0.05 

.05 

.04 

.05 

.04

.04 

.04

.08 

7.53

4.04 

1.85 

.53 

.68 

.50

.12 

.10 

.05 

.05 

.05 

.08 

.05 

.04 

.07 

.04 

.06 

.05 

1.70 

1.40 

2.75

--

90 

90 

72 

88 

70

70 

72 

1/4,000 

145 

2/170, 000 

24, 200 

6,090 

1,350 

2,060 

1,340

272 

227 

105 

105 

105

168 

105 

84 

144 

84 

130 

111 

2/8, 070 

2/6, 560 

15, 100

241, 100

i snR nnn ( ons) , ,

J/Estimated or interpolated.

2/Sediment discharge computed by subdividing day.
PART 10-THE GREAT BASIN

JORDAN RIVER BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN JORDAN RIVER BA

Chemical analyses, in parts per million, water year October 1948 to 

Date of collection

Mean 

discharge 

(secondfeet)

PH

Specific 

conductance 

(micromhos at 

25° C )

(Si08) (Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOS)

Sulfate 

(S04)

Chloride 

(Cl)

OUTLET OF DEER CREEK RESERVOIR NEAR PROVO

Apr. 1, 1949 

Bunt 23 

8.0 

7 9'

7 R

526 

493

37R

11

9 5

9 0

9 9

0.04

to.

70

Fin

18

13

1

in

!

R 2

224

190

I7n

76

47

15

ft R

LITTLE COTTONWOOD CREEK NEAR SALT LAKE CITY

Mar. 30, 1949 

Mow q

Sprit 9.9. -- ---- 

8.2

8 

n

7 5

A 1

205

1 30

1R7

7.7

H 1

0.05

13 '

m

28

99

2R

5.9

3

e

R 2

3.7

3 2 R 1

76

74

34 

on

23

37.

2.6

2 0

9 9.

BIG COTTONWOOD CREEK NEAR SALT LAKE CITY

Mar. 24, 1949 

Mow Q

Bunt 22 

8.2 

7 9

H 1

281

29R

7.1

R n

0.04

ns

36 

24

no

4n

12

IS

3.4

3 

A

9. 7 4 n

123

Q1

DO

14ft

38 

25

91

34

4.0

a 2

MILL CREEK NEAR SALT LAKE CITY

Mar. 24, 1949 

Bunt 22 

8.3

8

0

8

1

7 9

7 7

586

R97

8.5

8 Q

9 R

0.04

m.

82

tu

26

99

90

7

7 Q

.1

I

E

3

4

4 3

224' 

250

93v

129

isn

6.0

8

0

R R
I i 96T -; ' S51

. vt- ,

?"' " i r:; (. - j

 ; ;: , o., c i

i ^ I ;-L'

f T, 

0 0

i OB? ] I '!

n ' H- 

! scs:

 - i -

vS ;f^K

!{ i « ]

! C ' ' EK I

I-re I ;r

o;:r

ViiZ

AiTO

«!

A i TO WT J1VS 

->P" ' f «, 1 

ei

; iii i "7 i ;--.; 

5:4 ' T; ' 

j rtt -.-c ; 

; »i_s .' _ >-';, . 

un Jisiv"' run y
SALTON SEA BASIN

MISCELLANEOUS ANALYSES OF STREAMS IN SALTON SEA B

Chemical analyses, in parts per million, water year October 1

Date of collection

Mean 

discharge 

(secondteet)

Temperature 

(°fl

PH

Specific 

conductance 

(micromhos at 

25* C)

Silica 

(Si02)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(S04)

ALAMO RIVER NEAR CALIPATRIA

Feb 3 1949

816 

814 

644 

872 

910 

786

590 

660 

551 

742

3,120 

2,500 

3,030 

3,830 

2,610 

2,650

2,580 

2,520 

2,670 

2,440

13 

13 

11 

12 

9.4 

10

21 

18 

18 

16

167 

143 

168 

194 

142 

144

144 

142 

144 

132

83 

65 

82 

104 

67 

70

69 

71 

73 

68

397 

310 

389

328 

323

313 

301 

328 

296

195 

191 

195 

206 

181 

187

200 

190 

181 

173

584 

499 

565 

649 

492 

498

499 

502 

514 

466

NEW RIVER NEAR WESTMORLAND

Feb 3 1949

665 

543 

524 

722 

602 

509 

630

596 

520 

441

544

3,090 

3,150 

3,690 

2,940 

3,960 

3,900 

2,650

2,430 

2,770 

3,090 

2,760

13 

16 

11 

14 

12 

12 

13

19 

19 

13 

26

147 

150 

169 

145 

180 

180 

138

131 

139 

148 

141

66 

63 

74 

61 

78 

85 

58

55 

59 

62 

62

423 

438 

519 

410 

580 

524 

354

309 

364 

422 

357

197 

204 

227 

198 

208 

212 

204

198 

201 

196 

194

458 

444 

470 

440 

475 

519 

419

395 

430 

455 

410
PART 12-PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLOM

UPPER COLUMBIA RIVER BASIN

KOOTENAI RIVER BASIN 

KOOTENAI RIVER AT PORTHILL, IDAHO

LOCATION, At gaging station, 300 feet south of international boundary at Porthill, Boundary County.

DRAINAGE AREA. 13,700 square miles.

RECORDS AVAILABLE. Chemical analyses: January to September 1949.

Water temperatures: January to September 1949. 

EXTREMES, 1948-49. Dissolved solids-. Maximum, 185 parts per million Jan. 21-31; minimum, 89 parts 

Total hardness: Maximum, 161 parts per million Jan. 21-31; minimum, 71 parts per million Apr. 21-

Water temperatures: Maximum, 69"F Aug. 5-7, 10, 16; minimum, 33°F on many days in January, Februa

REMARKS. Records of discharge for water year October 1948 to September 1949 given in Water-Supply P

samples available in regional office at Salt Lake City, Utah.

Chemical analyses in parts per million, January to Septembe

Date of collection

Tan. 1-10, 1949 

Mean 

discharge 

(secondfeet)

3,773 

3,554 

3,325 

3,456 

3,919 

4,671

4,771 

4,516 

6,343 

10, 180 

23, 410 

30,060

32, 950 

75, 430 

52, 950 

46, 450 

29, 550 

IB 49 n

PH

7.6 

7.5 

7.9 

7.9 

7.9 

7.9

7.6 

7.8 

7.8 

7.8 

7.9 

7.8

7.4 

7.4 

7.4 

7.5 

7.5 

7 R

Specific 

conductance 

(micromhos at 

25° C )

310 

310 

308 

308 

303 

284

278 

273 

262 

238 

166 

143

152 

165 

163 

171 

182 

snR

Silica 

(SiO,)

9.4 

9.3 

9.1 

8.9 

8.5 

8.7

8.8 

9.0 

9.7 

10 

11 

10

9.7 

8.2 

6.9 

6.4 

6.7 

7 5

Iron

(Fe)

0.04 

.02 

.02 

.03 

.04 

.05

.04 

.04 

.06 

.10 

.20 

.16

.09 

.20 

.06 

.06 

.05 

(ii

Calcium 

(Ca)

42 

42 

43 

42 

41 

38

38 

38 

36 

32 

23 

20

20 

25 

23 

24 

26 

 >«

Magnesium 

(Mg)

13 

13 

13 

13 

13 

12

12 

11 

11 

9.4 

5.9 

5.1

5.3 

4.8 

5.6 

5.7 

6.4

7 7

Sodium 

(Na)

3.8 

3.2 

3.6 

3.7 

3.3 

3.7

3.4 

3.2 

3.1 

3.4 

3.4 

2.2

1.7 

1.4 

1.6 

1.3 

1.5 

i R

Potassium 

(K)

4.2 

2.4 

2 2 

2. 9 

3.5 

2.4

3.4 

3.8 

3.0 

3.0 

3.4 

2.4

6.2 

4.0 

4.3 

4.2 

3.7

5 Q

Bicarbonate 

(HCQ,)

164 

167 

167 

166 

158 

148

136 

134 

128 

120 

90 

78

79 

94 

89 

98 

98 

inn

Sulfate 

(SO,)

26 

27 

28 

27 

27 

27

27 

28 

27 

22 

11 

9.1

9.6 

7.4 

9.0 

9.9 

12

15

Chloride 

(Cl)

2.6 

2.2 

2.4 

3.1 

2.6 

4.5

2.4 

2.1 

1.9 

2.2 

1.4 

1.5

1.6 

1.2 

1.6 

1.1 

1.7 

 > n
KOOTENAI RIVER BASIN--ConM.AK.-o 

KOOTENAI RIVER AT PORTHILL, lE.Uhl ^ \, 

Chemical analyses in parts per million, January tc Svyf.e

Date of collection

July 1-10, 1949 

Weighted averageMean 

discharge 

(secondfeet)

14, 580 

13,480 

11,020 

9,712 

7,705 

6,680

5,733 

6,000 

5,461

16,310

PH

7.7 

7.4 

7.4 

7.4 

7.5 

7.5

7.5 

7.8 

7.6

--

Specific 

conductance 

(micromhos at 

25° C )

217 

221 

230 

240 

242 

255

256 

261 

257

191

Silica

(sip,)

7.3 

7.1 

6.6 

7.9 

7.7 

6.2

6.8 

6.7 

7.9

8.0

Iron 

(Fe)

a. os

.03 

.03 

.03 

.03 

.03

.02 

.03 

.03

0.09

Calcium 

(Ca)

29 

31 

31 

33 

33 

34

36 

37 

36

27

Magnesium 

(Mg)

8.3 

8.7 

9.0 

9.7 

9.8 

10

11 

11 

11

6.9

Sodium 

(Na)

1.7 

3.2 

2.5 

2.7 

3.0 

3.2

3.2 

3.3 

3.2

2.1

Potassium 

(K)

6.4 

2.7 

2.2 

2.2 

.6 

.8

1.4 

3.2

3 7

Blearbonate 

(HCO,)

no

122

123 

13M 

133

138 

136

J.fl ; 104

Sulfate 

<S04)

if, 

19 

20 

21 

19 

21

n 

n

33 j

2.0 

).t. 

-1,'t 

5s 0 

2.2 

2.fc 

£.5 

2.2 

13 1 1.7 

! 
RIVER BASIS

g g :y, 2 x

s ir; ti*s u*i »fs

o C' cn cs K

'« ~ 1

sn
UPPER COLUMBIA RIVER BASIN Continued 

MISCELLANEOUS ANALYSES OF STREAMS IN KOOTENAI RIVER 

Chemical analyses, in parts per million, water year October 1948 to Se

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

Specific 

conductance 

(micromhos at 

25* C)

Silica 

(SiO,)

Iron 

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOS)

Sulfate 

(S04)

Chloride 

(Cl)

KOOTENAY RIVER AT NEWGATE, BRITISH COLUMBIA

June 15, 1949 18, 600

5, 550 

4,370

59 

50

7.8 

8.0

212 

269 

284

4.5 

7.0 

5.9

0.02 

.03

30 

37 

40

8 2 

12 

12

6. 

1. 

3.0

3 

8 

1.9

116 

140 

146

21 

26 

29

3

2 

2^

MOYIE RIVER AT EASTPORT, IDAHO

Sent 9.3 ---

102 

264 

5,690 

1,730 

229 

95 

74

32

48 

55

65 

Fifi

7.0 

7.5 

6.7

7.5 

7.4 

7 R

56 

SO 

36 

39 

46 

49 

40

11 

10 

8.4 

8.2 

9.7 

10 

11

0.03 

.12 

.03

.03 

.02 

r>9.

5.8 

4.8 

3. 8 

3.5 

5.8 

5.8 

5 3

1.5 

1.5 

.8 

1.0 

1.8 

1.9 

1 fi

1.8 

2.4 

1.5 

5. 

2.2 

1.9 

9 1

4.5 

3.4 

1.8 

2 

1.3 

1.9 

1 4

28 

25 

18 

24 

27 

29 

3D

3.7 

3.9 

2.7 

2.0 

4.0 

4.0 

3 1

1

1

1

BOUNDARY CREEK NEAR PORTHILL, IDAHO

Feb 1 1949 23

593

21 52

7 5

7 5

53

07 3 1 04

01

4 8

6

9

 

1 3

2 2

o

2 7

1

4 3

2 2

9ft

25

29

OA

5 2 O 
PEND OREILLE RIVER BASIN

PEND OREILLE RIVER AT METALINE FALLS, WASH

LOCATION. At bridge on State Highway 6, west of Metaline Falls, Pend Oreille County, 5 miles upstr

international gaging station below Z Canyon. 

DRAINAGE AREA. 25,200 square miles above gaging station. 

RECORDS AVAILABLE. Chemical analyses: January to September 1949.

Water temperatures: January to September 1949. 

EXTREMES, 1948-49. Dissolved solids: Maximum, 116 parts per million Jan. 1-10, 21-30; minimum, 90 

Total hardness: Maximum, 93 parts per million Jan. 21-31; minimum, 67 parts per million Apr. 11-

Water temperatures: Maximum, 71°F Aug. 25-26; minimum, freezing point on many days in January.

REMARKS. Discharge records for international gaging station near Metaline Falls for water year Octo

1152. Records of specific conductance of daily samples available in regional office at Salt Lak

Chemical analyses, in parts per million, January to Septemb

Date of collection

Jan. 1-10, 1949 

Weighted averageMean 

discharge 

(secondfeet)

12, 050 

14,840 

14, 880 

18, 030 

19, 730 

28,540 

39, 860

53, 880 

78, 960 

103, 090 

98, 480 

78, 450 

52, 950

37, 420 

27, 360 

20,090 

15, 720 

12, 940 

11, 190

9,904 

8,862

1/36, 777

PH

7.8 

7.7 

7.2 

7.9 

7.7 

7.5 

7.7

7.5 

7.2 

7.2 

7.3 

7.2 

7.3

7.4 

7.4 

7.4 

7.4 

7.6 

7.7

8.0 

8.0

-

Specific 

conductance 

(micromhos at 

25° C )

188 

191 

188 

171 

155 

146 

156

151 

146 

144 

148 

152 

157

161 

167 

175 

171 

176 

180

183 

185

156

Silica 

(Si02)

10 

9.7 

8.9 

11 

11 

11 

10

12 

9.7 

9.9 

11 

8.9 

9.3

8.6 

7.8 

8.2 

8.4 

9.6 

8.3

11

7.8

9.9

Iron

(Fe)

0.03 

.03 

.04 

.05 

.06 

.04 

.04

.03 

.04 

.03 

.02 

.04 

.04

.03 

.02 

.03 

.02 

.03 

.02

.03

0.03

Calcium 

(Ca)

26 

26 

26 

22 

20 

19 

21

20 

19 

20 

20 

21 

21

22 

23 

23 

23 

23 

25

25

21

Magnesium 

(Mg)

6.7 

6.6 

6.9 

6.2 

5.2 

4.7 

5.2

5.2 

5.1 

4.9 

5.1 

5.1 

6.4

6.1 

6.5 

6.3 

6.1 

6.4 

6.4

7.3

5.5

Sodium 

(Na)

2.9 

3.0 

3.6 

3.4 

3.3 

2.9 

2.6

2.9 

2.9 

2.9 

2.4 

2.4 

2.6

2.6 

2.7 

3.1 

2.7 

3.1 

3.3

4.0

2.8

Potassium 

(K)

4.6 

3.6 

3.8 

4.6 

3.7 

2.2 

3.7

1.8 

2.8 

1.9 

1.9 

2.6 

2 2

3.2 

3.2 

3.7 

3.8 

2.9 

2 2

2.6

2.6

Bicarbonate 

(HC03)

100 

102 

104 

92 

83 

76 

84

80 

78 

79 

83 

84 

90

90 

96 

98 

97 

99 

106

107 

106

86

Sulfate 

(S0«)

14 

14 

14 

12 

11 

11 

13

12 

11 

9.7 

8.8 

7.8 

9.9

10 

12 

12 

13 

13 

12

10 

10

11

Chloride 

(Cl)

1.5 

1.8 

1.0 

1.7 

1.4 

1.3 

1.1

.2 

.5 

.8 

.8 

1.1 

.9

1.1 

.8 

1.3 

1.1 

.8 

1.1

.9 

1.2

0.9

I/Represents 80 percent of runoff for water year October 1948 to September 1949.
«,*,*

:l .

'.: 

iV-t

'.'

^ 

;"' "

'-. ;

0»

'(.. 

.,,,£

S: J

. !,".'.' "..._,

1 

v«- 'J

=j'

;_; n

99

J.J 

'.*'''

'^

.'! 

.-.'

i;'

... _.. . .... .j 

../!"'... j

fc

e-;.

Ed

n.b

' '

-!":

'-^'

19

£9 

oa

08

06

i''

IJ

 ,/j

< ',

f-v I , _.... 

rt-,.

i>

V.

i'., !ri 1

»;. 

frr

*sI

SI

av

 ^

ct0V

T* 

ESLt

ir

ru,v-

«;1

 -

' f, 

.'"l, ^-

ifJ.n'pj

_. ,

.>........_

-'.£

it

st:

Kf

^."

^ i;

Si

£ .

f4

J-'-

J.S

. i';.-. . . 

l.i.f-,1 

r,,nunao,>--

^'"PO JVOt "->}»:» '.taifYt .ij , ,,< ; 

KTiva jKnviSh .n MASH : ';>)

MS/lK WJiaV.O ON SO
A« : 

ASM.

t-KNJl OREIL(,K R.iVZR )V,Si> -'.o&t/ . 

FLATKE^D K?V*K M1 CGLUMUA PAUT, 

s/;?tini, a< (V-lij.T.'j.U ft- its. Fl? 'dies;',! ' 

. .... 

M'.:. I ;r! !. - >. :-! ' HIT

:.na t >-.>-- Jarusry to

19-1'-:

X:.'3Ar.i,i

d ;'.;! :.d;-.i: M; \ireur,:, 135 {.arts p<-<" o> it ;.!!>!-. Jfu. i3-:?t, roini/nuw bl' pa. 'h 

'.39 ; )? .; ft-'i: ri'Uion ''an. (--31. ; i" IK-MI, Tir i-arla p-jr mi XI o;. J'nu -.

' '

'.39 ; )? .; ft-'i: ri'Uion ''an. 

<OT, 6H>' ,'.:j,>, . "-4; ?L Hi MMM

fine-iris -jt ;ii'3'-: 1 ''i\(!o ; i .i.'i'. ..£ yf.ar Ccrf/iX"- 

" '

Jan

15-i? y in Vutov-rfia-p"! ,)

. ... ! is.

Ji\U '< -31

F..-<- : -m 

May . t.'U -

,, *t: 

,-i-K

^; V E-:a

i Po r

T ?

 l'",

... I

i, i <' i 

\1M!

1.' AM

Vj, iOC 

3J «1<;

M '<<(:' 

ft. .ce!

4, 164 ' V v

3,054 -.0,

2, S-H 1 7 :

 :-;

171

!«; .

^'

; 1

0."

 .-.«,

6 '.

'j. i,

: .',,

f£'

c;'

3?!

3fi:

?^i

 5'

it.,

'«! 

2?

;vr 

. ri

C.",

K 7 M'1

f 0 

1.7 

i 't 

= .!»

* HI;

I.S-

.1 ?

'5.9 , B 2 I P.'i

Hi

i ;

.4

L 1;

-1.0

I.'

L.«

4 ', !

', I

5 R

:> i>

...7

f r. 

r. .

i. ! 

it 0 i

' Id 

,')c

,i 0

;-. s 

e.c

b 0

.*.:.

,'iK ,

1'i !

 o 1. _ ;'.;- >

'^i ' i

%( ' 3 ^ : Mi ;. v .

,< ? . « > '

:.'- ' ' ,1 ,

£ ? i t

,:,:; I 4.9

M ' i |i

li'S ; ;,.;, '

;': ; :;

M

.3 

5 

? 

S

 ?

.o.

a 
492 PACIFIC SLOPE BASINS IN WASHINGTON AMD UPPER COLUMBIA RIVER BASIN

slif

|**1*

 » 1

 1^

| 

 3 H «-

33 w Q * h ' e 

S 5L;3 ° o, a aa

005* 

n K=-

s!I

s h 

u

illIll

sals

Jji

fill

 3 f o

11

is

!|iii

»a

ijll

of Datecollection

 :

10 m * j

r* ^ ^

S esi 10 i

o

CO ft-* i

gig :

o

C» "fl1 « CO

o

o*

"" " " 

*". *. "^ *.

SSS3

GO GO CO 1

en *H o i

: : : !

0005 1

TH 5 O "

O

--5S5

llss

-^ if) to tO

S

en co o t- in en

! o ! 

o> M !

CO CO CO CO

CM

CO

o 

pj"

o

s

o 

o

o*

o*

o

CO

to

en

T

: 

m*

3

8

O

: 

2

1

vH

Weighted average-
Temperature (° F ) of water, water year October 19

Day

1 °.

21

23

9S

27

30

October November December January

34

33

33

3-3

09

34

33

34

nn

33

OA

nA

35

33

19

33

32

32

38

37

February

34

i«

35

07

35

OQ

35

OA

35

OQ

QC

34

OQ

37

38

Ifl

March

QQ

37

37

no

35

A
rlv ':- r~ - 

«tJ 13 i.r

 ^ jj

ii,", ';< | ' ; ; ; j j j i 

f'l'?''; 1 , i''^0- v * }>' t'^x'' ' !""'- , '*'<*' ' ! "';'." i ifir:iV ^V ' :c^ 

T ,- ' ( ; - ! 

i;v.' j , -.. H' I -;. i } ' ', . it'i : ) ,. ; !.

""' 10 i. us j 40 .; ft.ti j ; .) ! ,, - i i'.- . ?. ! .

r1'' ^ '"'i"J ;; '\i. L0 i' " ; ' ";- ; =;: 'i 

.-. it. -), «e

iK

Ai.-.- -J. J619- - - - : i :flC ' !? M

«.r ,e- ..... .. . . j .so, tjo ;? ' - i

^K. ;<; ......... , ,x hi,; i .. , .5;

fV:,; sni , ;!

' ,t ~> J-: ! 1 Ci ^ . ... w 

T 

'

,' ; ! ; - . ! 

i;v.' j , -.. H' I -;. i } ' ', . it'i : > ,. ; !. 

""' 10 i. 05 j 40 j ft.tl j ; ,) ! ,, - f i'.- . r. J . 

£'! a.( '£j^j ;'\[''^i' ' -'_' ^.j^'i _

.' J.. z]" "ji: i ..f " .. r i. I / T " o 

* ! l ' s.'Hi I- i 5 -...' H : '.a , H'.' ; 4 j 

. . L . .'.... . I L . ; . ! . 

^vVM i'0v'!. riAVKiiAC hHM 1--V-.W OO.'JM::". ,'A J,Li:, , ! r

in ! . i ! c ^ ' s; ,''-,''.; ; .' . . '.:y. >. - I - 

'is! *." ; .- >«; Sf ' ! :.' ' V ? ' Uf. ! < F. j 2.

I'M | < i j -J? - ; , - - ! S>:i ' i 6 j 
OKANOGAN R1VBS HAS I

SIMILKAMKEB 8JVE,tt AT OROVILLE, WASH.

LOCATION. At bridge on U. S. Highway 97 at OrovUlp, Okanogan County, about 10 miles ih<it*f,'...fviur. >r 

downstream from Nighthawk and 12 miles upstream i'roir ff'OiH.h.

DRAINAGE AREA. 3,420 square miles above gaging station waf Mtfhthawk

RECORDS AVAILABLE. Chemical analyses: January to September 1949. 

Water temperatures: January to September 194V,

EXTREMES, 1948-49. Dissolved solids: Maximum, 144 p,«rts per 'n.Uiiort Apr. J-10; mini 

Total hardness: Maximum, 109 parts per million Apr. 1-30; minimum, *2 parts per KJ 

Vater temperatures: Maximum, 72°F Aug. 2-3; ,v.irtiSiiD;, irtceziag print on isany djvs i

REMARKS. Discharge records for gaging station near Nightli.«'k for wates year October 

specific conductance of daily samples availablo ji; regional office ai Salt LaKf Ci

Chemical snaiyses, to parte per in'.ilvo

Date of collection

Jan. 1-10, 1949 

May 21, 23-27 

July 21-22, 25-29 -

Mean 

discharge 

(secondfeet)

661

791

15, 120

4 475

1,791

Q09

700

PH

7.7

7 9

7

0

6 Q

7.6

6 0

6

Q

7 3

7.4

Specific 

conductance 

(micromhos at 

25° C )

253

229

A e l

106

169

ion

215

Silica 

(SiQ.)

14

12

13

12

11

-

Iron

(Fe)

0 02

.10

.12

.05

32

31

qq

no

34

<*4

18

15

21

24

no

30

Mag- 

(Mg>

5.7

5 7 «"Q

*> 9

4.6

3.1

2 5

3 9

3.1

.

Sodium

(Ma)

4 S

3.8

4.9

PotnsSKH-

,' ",

4. *

2.7

,B ?-,:-! / 

bo,: ,-,,

i i'i

tt,

CO

IJB

86

',.. 2 

fi. ' i .! 

a. t ' i - 

3.5 .'.'; 

12 v -i 

12

13

16

17

20

i , '.: 3.0

2.2

2.0

4.0
OKANOGAN RIVER BASIN--Continued 

SIMILKAMEEN RIVER AT OROVILLE, WASH. Continu

Chemical analyses, in parts per million, January to September 1949-

Date of collection

Sept. 1, 3, 6-9, 1949

Weighted averageMean 

discharge 

(secondfeet)

644 

665 

845

1/3, 595

pH

7.5 

7.5 

7.5

"

Specific 

conductance 

(micromhos at 

25° C.)

223 

223 

199

134

Silica 

(SiO,)

14 

12 

11

13

Iron 

(Fe)

0.04 

.04 

.06

0.18

Calcium 

(Ca)

31 

32 

28

19

Magnesium 

(Mg)

6.9 

5.7 

5.1

3.8

Sodium 

'(Na)

5.0 

6.4 

6.1

4.1

Potassium 

(K)

2.1 

1.9 

3.0

3.0

Bicarbonate 

(HCOa)

114 

113 

103

72

Sulfate 

(S04)

20 

20 

16

11

Chloride 

(Cl)

2.8 

2. 6 

3.0

1.6

I/Represents 82 percent of runoff for water year October 1948 to September 1949.
Temperature ( ° F ) of water, water year October 19

Day

1 

Q

13

22

23

24

October November December January

31

00

OO

01

31

01

00

32

February

32

00

Q |

Q9

w.

_

___

March

31 

31

31

09

31

01

31

_

43

48

on

Ap
: :'.;: , ' 

'/;'

;-. OS1A.Y.S/V' Km,'! MS! 1" !«

v,»^.it,.,-,;; AJUI'V.A ' ; . ivu-vi !(>u r.:i; > ..&, .v:;W- v,r,M >k't:.: wr "H;; *., ik-

. . ... ., . ..... ......... .... ... .,.-...,...,, . ..,_. ....,..,,......_ . ,.,.,. ._ 

L. ;"' ;^\;j^r^V'"! :"]^ : l ! riT. :!!: < '"

:B ; ^ j -." i H -' i -i , ' : ;; j .; I ,

1 3?. ' -, - : Ki J.T, : ;v ' ; 

; 

,r'..! , : '>

fit'!". 1'?-

.'.».1 

I.-; i

, : : i.ii' ; , : : .> J . ' . .,i ; «.t- , K.; i :,'" , . ; ;

j-> , ;<; ! " , ^S7 .,, ;, ' VI ;;) ,;<.-) ; - ; j ;.-. ,-4 i :.

--" ' ' , - ; ! -v l - ; M M , : , > - t 3 : ur- : ; ;.

"J , - jo;, i/t. . ' , ;:i,,,.i , ' | r.i ! is:' ' ;: ; i > 

! ';».,' I. 

| f f i 1

' ? 4 

	!Sf;fM> wEt

. . f T... , ,_ .... .... . ... r ._. _ v . .. f .. .. 

^j' , * " '; ': ' ; , ^- 7 ' -\ ' - I -^ : -' I ' :'-

" : . .1-. ;;<"i ' (, ; ' L- * i a-, ' '" ' 

)U ; : ', I.,!-,'- M / . ! ; ; gi '

iofi '.'..; t i.i-' ; « , >» i f t i i 

K-> i v : -.5 ii /.H , i;.- ; ,:- , :,, ' f 4 

220 >u ' .-v ;>; 2 , (..:> ! L,,; : 11 ( ;,;. , 

2V, ;'? ( :'< _ '.« j H. ; <> | ' ;' ! li; -!0 j l
UPPER COLUMBIA RIVER BASIN--Continued

MISCELLANEOUS ANALYSES OF STREAMS IN UPPER COLUMBIA RI

Chemical analyses, in parts per million, uyater year October 1948 to S

Date of collection

Mean 

discharge 

(secondfeet)

Temperature 

(°F)

PH

Specific 

conductance 

(micromhos at 

25° C )

Silica 

(S102)

Iron

(Fe)

Calcium 

(Ca)

Magneslum 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCO,)

Sulfate 

(SO,)

Chlo

ride 

(CD

Dec. 11, 1948-- 

Feb. 28, 1949 

Apr. 19 

May 17 

June 7 - 

July 16--

COLUMBIA RIVER AT GRAND COULEE, WASH.

43, 200

40, 000

8.0 151 4.f

1651 .' ..-;

U". ' 1,'

21 I 4.9

8.8

2.-.'

78 

(, ' 

 I ' ;, ^ 

". ' 

,; , 1 

i 

INDEX

Abbeville, La., Vermilion River near . . 

Abiquiu, N. Mex., Rio Chama near . . . 

Acme, N. Mex., Pecos River near . . . 

Alamogordo Dam, N. Mex., Pecos

River below ..........

Alamo River near Calipatria, Calif.. . .

Aluminum ..............

Amarillo, Tex., Canadian River near . . 

Angelina River near Horger, Tex. . . .

Animas River at Farmington, N. Mex. . 

Arapaho, Okla., Barnitz Creek near . . 

Arkadelphia, Ark., Ouachita River at . . 

Arkansas River at Bixby, Okla. ....

at Caddoa, Colo. .........

at Dardanelle, Ark. ........

at Fort Lyon, Colo. ........

at Kaw City, Okla. ........

at Little Rock., Ark. .......

at Sand Springs Bridge near

Tulsa, Okla. ..........

at Van Buren, Ark. ........

at Webber Falls, Okla. ......

Arkansas River basin .........

Artesia, N. Mex., Pecos River near . . 

Ashley Creek near Jensen, UUh ....

Aspermont, Tex., Double Mountain Fork 

Brazos River near .......

Aspermont, Tex., Salt Fork Brazos

River near...........

Atascosa River near Three Rivers, Tex. 

Austin, Tex., Colorado River at ....

B

Barnitz Creek near Arapaho, Okla. . . 

Bayou Meto near Stuttgart, Ark. ...

Bell Cow Creek at Chandler, Okla. . . 

Belzoni, Okla., Kiamichi River near . 

Bernalillo, N. Mex., Jemez River near 

Bernalillo, N. Mex., Rio Grande near 

Bernardo, N. Mex., Rio Grande near . 

Bernardo, N. Mex., Rio Puerco near . 

Big Cottonwood Creek near Salt Lake

City, Utah ...........

Bixby, Okla., Arkansas River at ....

Black River at Black Rock, Ark. ....

at Forehand Crossing near Malaga, 

N. Mex. ............

at Pocahontas, Ark. .......

near Corning, Ark. ........

Blanco, N. Mex., San Juan River near 

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

Boron ................

Boughton, Ark., Little Missouri River

near .............

Boulder City, Nev., Lake Mead near . , Boundary Creek near Porthill, Idaho . , Brazos River at Possum Kingdom Dam

near Graford, Tex. .......

at Richmond, Tex. ........

at Waco, Tex. ..........

near Benjamin, Tex. .......

near Bryan, Tex. .........

near Marlin, Tex. ........

near Whitney, Tex. ........

Brazos River basin ..........

Bridgeport, Okla., Canadian River at 

Bright Angel Creek near Grand Canyon, 

Ariz. .............

Bright Angel Creek basin .......

Brush Creek near Jensen, Utah ....

Bueyeros, N. Mex., Ute Creek near . . 

Buffalo River near Rush, Ark. .....

near St. Joe, Ark. ........

Page

199-201 

308-311 

357-358

355-356

484

8

95-98 

212

472-473

160-162

181-183

48-51

39

61-64 

37-38 

40-43 

65-68

44-47

56-60

52-55

37-137

359-363

450

235-238

268

256-257

160-162 

137

128-130 

169-171 

320-324 

282-286 

287-291 

333-336

482

48-51

36

377 

35 

35

458-463

464-471

11

190-192

409-417

488

229

233-234 

242 

242 

242 

242

230-232 

227-243 

99-104

477 

477 

450

120-123 

35 

35

C Page

Cabezon, N. Mex., Rio Puerco below . . 325-328 

Caddoa, Colo., Arkansas River at. ... 39

Caddo Lake at Longhorn Ordnance Plant

near Karnack, Tex. ....... 197

Calcasieu River at Lake Charles, La. . . 204-205 

Calcasieu River basin ......... 204-205

Calcium 9 

Camden, Ark., Ouachita River at .... 184-186

Cameo, Colo., Colorado River near . . . 385-387

Canadian River at Bridgeport, Okla. . . 99-104

near Amarillo, Tex. ....... 95-98

near Sanchez, N. Mex. ...... 87-88

near Tascosa, Tex. ........ 92-94

near Taylor Springs, N. Mex. . . . 134

near Whitetield, Okla. ....... 105-109

Caney Lake at Red River Arsenal near

Texarkana, Tex. ........ 197

Carbonate and bicarbonate ....... 10

Carlsbad, N. Mex., Carlsbad Project Main

Canal near ........... 372-373

Carlsbad Project Main Canal near Carlsbad,

N. Mex. ............ 372-373

Carnegie, Okla., Washita River at ... 149-151 

Carter, Okla., North Fork Red River

near. ............. 140-142

Chacon Creek near Laredo, Tex. .... 378

Chamita, N. Mex., Rio Chama near . . 312-315 

Chandler, Okla., Bell Cow Creek at . . 128-130 

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

Chico Arroyo near Guadalupe, N. Mex. . 337-340 

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

Cibolo Creek 500 feet above Sutherland

Springs, Tex. ......... 265

0. 7 mile above Sutherland Springs,

Tex. ............. 265

at Sutherland Springs, Tex. .... 265

half a mile below Sutherland Springs,

Tex. ............. 265

Cimarron River at Springer, N. Mex. . . 134 

at Ute Park, N. Mex. ....... 114-115

Cisco, Utah, Colorado River near . . . 388-391 

City Creek near Salt Lake City, Utah . . 483 

Claremore, Okla., Verdigris River near 69-71 

Clarendon, Ark., White River at 31-33 

Clear Fork Brazos River at Nugent, Tex. 239-241 

Clear Fork Trinity River at Fort Worth,

Tex. ............. 218-220

Clinton, Okla., Washita River near . . . 146-148 

Collection and examination of samples . . 3-5 

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

Colorado City, Tex., Colorado River at . 244-246 

Colorado City, Tex., Morgan Creek near 259-260 

Colorado River at Austin, Tex. ..... 256-257

at Ballinger, Tex. ........ 261

at Colorado City, Tex. ...... 244-246

at Kite, Utah ........... 392-394

at Hot Sulphur Springs, Colo. . . . 379-381

at Lees Ferry, Ariz. ....... 395-400

at Robert Lee, Tex. ....... 247-252

atWharton, Tex. ......... 258

at Yuma, Ariz. .......... 421

below Hoover Dam, Ariz. -Nev. . . 418-420 

main stem ............ 379-421

near Cameo, Colo. ........ 385-387

near Cisco, Utah ......... 388-391

near Glenwood Springs, Colo. . . . 382-384

near Grand Canyon, Ariz. ..... 401-408

near Kite, Utah .......... 421

near Ira, Tex. .......... 261

near San Saba, Tex. ....... 253-255

Colorado River basin (Part 8)...... 244-262

Colorado River basin (Part 9)...... 379-481

Columbia Falls, Mont., Flathead River at 491-493 

Columbia River at Grand Coulee, Wash. 499 

501
INDEX

OVU. , Neosho River near 

. cl surface waters ......

K>, N. Mex., Reservoir behind

-r near Variadero, N. Mex. .

- t' --a r Paint Rock, Tex. 

. .........

Mev , San Jose River at 

r3s , , .......

Wr.ita Hiver at ....

tf if. ,..s.r Humphrey, Ark. 

rk . Ouis.-luta River near .

Page 

75-77 

7-15 

89-91 

135

. 261 

16, 17-18 

341-344 

. 13-14 

. 25-27 

. 137 

.187-189

Odrtr.ro, Art*., Ptt'.i iean Creek at . . .131-133

BsrfetHe, Ark ;ikansas River at . . 61-64 

DarJ.-:,, Tr-v., Suipiiur '-tiver near . . . .175-178

Dav<c:>, N Ifi'jc , V, .-'nejo River near. . 110-113 

D*c-p IV.jii fuvi> or*: Dewar, Okla. . . .124-127

,'>,msi-r,, Tcx,. ;*eaRi«.r near .... .138-139

D»wai. Okla., Peep Fork River near . .124-127 

Dirty Des'-J Rives-near Cite, Utah . . . .451-453

D-r.vl>«il Hivsr tiEsi:. ...... .451-453

D.'s-vih-e-d s'--:«Jf . ........ 11

Ui-'trric-.s i:.c! ri:'t:ir:i ?lo*'3 at and below

Itnpajwl Dam . ....... .422-423

Lhvisi-.i -,, ,-,-irx . ....... 16, 19

" iWi-tt-Sivvrii! Ga:«;*-ay, ^ulo. . . . .430-432

baiof SAt-iilti of Sic Ci'iv.k near

f,'r-iiit'jfli. Co.a . ..... 433

Dui^-es . i*e- bwin , . .... .430-450

D.-imjr-iu:, N. Me?... L-ii;^-f-. O;-ek at . .316-319 

Doi-ble WowHain fork BniKi - ,"? .'er near

A<-,i*rrao;i<., T-jt . ... .227-228

:;pai- Rotan, ?e.« . ..... 242

UQV* .:?«*, Ji.-tiitiv:,.^! r..vniv. Tex. . . 261 

Duncan O*la . L^b- Bc^cr C.-eek near . 143-145 

O«-i-f.-<i-X, OkLi.. W:!.*-...4 c';-*:-r --.ear. . .156-159 

JJM.JI Cree-. ,:r Waif iv Js, ',.-'- .... 136

Hivt-r n^ai Tjlf Ciiy. M.J. 

uj.-". N. Hex , K io Granut? ..c 

.|-,-ian^'. C'f cii'iinir So"? W.?

l.".->h . . ... 

-iile U.v. , >;PV'!.«S Ilivt r :tt

. . .424-426 

.t, Ark. 36 

.... 84-86

. . .271-274

. . 483 

..209-211

.. 5-7

f Arsninsto. , 7- Me;... ,1,1:1=^,8;-^ ;it .472-473

TVra Lakf near Ma;c;/ao-:he3. Tex, . 212

Fi,ith<^d Kivftl- st Colusabia Fai'-. V; un'. .491-493

.it 7u>Us*-1. Bvif^ti Ooiaif.c-a . . 494

 jo-J-i.> . . . . .10

i-'ort ColJh. O:-;H. I'.iP-J CT(" ,-. .'icasr . 163-165

Tfin Lyan. Ci-k., - -,-kiniH.- Piver ; . 37-38 

Fort PhasAcr.! HU1 ,"U;.f-iv:'.:- ne-tr ;-.^c.--:l.

!'..«. . . ..... 243

Pivt-i- .u " ~ . J1H-220

f:i':!c-h<; j,a f ai;-i'ivf:i .it-?-^r^oi.\, Ark, 136

;.tvi r.-mroc. *a". ... 137

> i .i> R. Vi-r \J Criilto^ii, 1 * : . . . 268

uaiirfeoCvt-chTiEi.-inip.jB. ! ' v^c .SI? 319

Gals-way, Co^-j.. D.-U-re-i'"'JV.T A( ir.t--i.i2

Grj :-i'a Tex. Bra?i.-s F'v.i- .(fir -SiGreen River, Utah, San Rafael River near 445-449

Green River at Green River, Utah .... 440-443

at Jensen, Utah .......... 437-439

near Jensen, Utah .."....... 434-436

Green River basin ........... 434-450

Guadalupe, N. Mex., Chico Arroyo near . 337-340

Guadalupe River at Victoria, Tex. .... 263-264

Guadalupe River basin ......... 263-265

Gunnison River near Grand Junction, Colo. 427-429

Gunnison River basin ......... 427-429

Gypsum, Colo., Eagle River below . . . 424-426

Hagerman Canal at Dexter, N. Mex. . . 

Hardness ...............

Hite, Utah, Colorado River at .....

Hite, Utah, Dirty Devil River near . . . 

Hoover Dam, Ariz. -Nev. , Colorado River

below .............

Hords Creek Reservoir near Vale r a, Tex. 

Hot Sulphur Springs, Colo. , Colorado

River at ............

Huffman, Tex. , San Jacinto River near . 

Hydrogen-ion concentration .......

Idabel, Okla. , Little River near . 

Illinois Bayou near Scottsville, Ark. 

Inola, Okla. , Verdigris River near 

Introduction ...........

Iron ..............

377 

13

392-394 

451-453

418-420 

262

379-381

223-225

12

172-174

136

72-74

1-3

9

Jemez River near Bernalillo, N. Mex. . . 320-324

Jensen, Utah, Green River at ...... 437-439

Jensen, Utah, Green River near ..... 434-436

Jordan River basin ........... 482-483

Kaw City, Okla., Arkansas River at 40-43 

Kettle River near Cascade, British

Columbia ............ 499

near Ferry, Wash. ........ 499

near Laurier, Wash. ....... 499

Kiamichi River near Belzoni, Okla. . . . 169-171

Kings River near Berryville, Ark. .... 35

Kootenai River at Porthill, Idaho .... 485-487

Kootenai River basin .......... 485-488

Kootenay River at Newgate, British Columbia 488

Lagrue Bayou near Stuttgart, Ark. .... 36 

La Joya Creek at Reservoir Site near

Samfordyce, Tex. ........ 378

Lake Arthur, La., MermentauRiver at . 202-203 

Lake Brownwood near Brownwood, Tex. . 261 

Lake Charles, La., Calcasieu River at '. 204-205 

Lake Childress near Chlldress, Tex. . . 196 

Lake Mead near Boulder City, Nev. . . . 409-417

Lampasas River near Camp Hood, Tex. . 243 

Lees Ferry, Ariz., Colorado River at . . 395-400 

Lees Ferry, Ariz., Paria River at . . 

Leon River near Temple, Tex. ....

Literature cited ...........

Little Beaver Creek near Duncan, Okla. 

Little Cottonwood Creek near Salt Lake

City, Utah ..........

Littlefield, Ariz., Virgin River at

474-476

243

19-20

143-145

482 

478-481

Little Missouri River near Boughton, Ark. 190-192

near Murfreesboro, Ark. ...... 198

Little River near Horatio, Ark. ..... 198

near Idabel, Okla. ......... 172-174

Little Hock, Ark., Arkansas River at . . 65-68

Llano River at Llano, Tex. ....... 262

near Confluence of Colorado River, Tex. 262

Lobatos, Colo., Rio Grande near .... 269-270

Loma Parda, N. Mex., Mora River at 116-119
5C3

Page 

Los Olmos Creek near Rio Grande City,

Tex. ............. 378

Loving, N. Mex., Refinery Intake Canal

near ............. 374

Lower Mississippi River basin .... 21-201

M

Magnesium .............

Malaga, N. Mex., Pecos River near . . 

Malvern, Ark., Ouachita River near . . 

Manganese..............

Mathis, Tex., Nueces River near . . . 

Mermentau River at Lake Arthur, La. . 

Mermentau River basin ........

Metalline Falls, Wash., Pend Orellle

River at. ...........

Middle Fork Flathead River near Belton,

Mont. ............

Mill Creek near Salt Lake City, Utah . . 

Mineral constituents in solution ....

Mission, Tex., Rio Grande near ....

Mississippi River at St. Louis, Mo. . . 

main stem ............

Mora River at Loma Parda, N. Mex. 

Morgan Creek near Colorado City, Tex. 

Moyie River at Eastport, Idaho ....

Mulberry Creek near Brice, Tex. . . .

Mulberry River near Mulberry, Ark.

N

Neches River at Evadale, Tex. ....

Neches River basin . ..........

Neosho River near Commerce, Okla.

near Wagoner, Okla. .......

Newport, Ark., White River at ....

New River near Westmoreland, Calif. 

Nitrate ...............

Norfork, Ark., North Fork River near . 

North Fork Red River near Carter, Okla. 

North Fork River at Norfork Dam near 

Norfork, Ark. .........

Nueces River near Laguna, Tex. . . .

near Mathis, Tex. ........

near Tilden, Tex. ........

Nueces River basin ..........

Nugent.Tex., Clear Fork Brazos River at

9

364-365

179-180

8-9

266-267 

202-203 

202-203

489-490

494

482

8-11

306-307

21-23

21-23

116-119

259-260

488

196

136

209-211

209-212

75-77

78-80

28-30

484

11

34

140-142

34 

268

266-267 

268

266-268 

239-241

Oakwood, Tex., Trinity River near . . 213-215

Okanogan River at Oroville, Wash. . . 498

near Tonasket, Wash. ...... 498

Okanogan River basin ........ 495-499

Orla, Tex., Pecos River near .... 368-369

OrovUle, Wash., Similkameen River at 495-497

Ouachita River at Arkadelphia, Ark. . 181-183

at Camden, Ark. ........ 184-186

near Crossett, Ark. ....... 187-189

near Malvern, Ark. ....... 179-180

near Mountain Pine, Ark. .... 198

near Mount Ida, Ark. ...... 198

Outlet of Deer Creek Reservoir near

Provo, Utah ......... 482

Oxygen consumed .......... 11-12

Pacific Slope basins in Washington and

Upper Columbia River basin . . 485-499 

Paria River at Lees Ferry, Ariz. . . 474-476 

Paria River basin .......... 474-476

Parley's Creek near Salt Lake City, Utah 483 

Pecan Bayou at Brownwood, Tex. . . . 261

Pecos River at Bataan Bridge in Carlsbad,

N. Mex. ........... 376

at Damsite 3 near Carlsbad, N. Mex. 376 

at Ford Crossing in Major Johnson

Springs area near Lakewood, N. Mex. 375 

at Puerto de Luna, N. Mex. . . . 350-354

at Red Bluff, N. Mex. ...... 366-367

	Pag? 

Pecos River at Spillway of Red Bluff Dam

near Orla, Tex. ........ 378

below Alamogordo Dam, N. Mex. . . 355-356

below Grandfalls, Tex. ...... 370-371

below Lake McMillan, N. Mex. . . 375

near Acme, N. Mex. ....... 357-358

near Artesia, N. Mex. ...... 359-363

near Malaga, N. Mex. ....... 364-365

near Orla, Tex. .......... 368-369

Pedernales River near Johnson City, Tex. 262 

Pend Oreille River at Metalline Falls,

Wash. ............. 489-490

Pend Oreille River basin ........ 489-494

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

Petit Jean Creek at Danville, Ark. 131-133

near BoonevUle, Ark. ....... 136

near Waveland, Ark. ....... 136

Pond Creek near Fort Cobb, Okla. . . . 163-165

Porthill, Idaho, Kootenai River at.... 485-487

Poteau River at Cauthron, Ark. ..... 136

Prairie Dog Town Fork Red River near

Brice, Tex. .......... 196

near Estelline, Tex. ....... 196

Price River at Woodside, Utah ..... 444

Properties and characteristics of water 11-14

Publications ............. 15-16

Puerto de Luna, N. Mex., Pecos River at 350-354

Purdy, Okla., Rush Creek at ...... 166-168

Q 

Quapaw, Okla., Spring River near . . . 81-83

Rayado River at Sauble Ranch near

Cimarron, N. Mex. ....... 135

near Miami, N. Mex. ....... 135

Red Bluff, N. Mex., Pecos River at... 366-367 

Red River at Denison Dam near Denison,

Tex. ............. 138-139

at Fulton, Ark. .......... 198

at Garland, Ark. ......... 198

Red River basin ............ 138-198

Refinery Intake Canal near Loving, N. Mex. 374

Reservoir behind Conchas Dam., N. Mex. 89-91

Richmond, Tex., Brazos River at . . . 233-234

Rio Chama near Abiquiu, N. Mex. . . . 308-311

nearChamita, N. Mex. ...... 312-315

Rio Grande at Embudo, N. Mex. .... 271-274

at Mission Pumping Plant near

Mission, Tex. ......... 308-307

at Otowi Bridge near San Ildefonso,

N. Mex. ............ 275-281

at San Acacia, N. Mex. ...... 292-298

at San Marcial, N. Mex. ...... 299-305

near Bernalillo, N. Mex. ..... 282-286

near Bernardo, N. Mex. ...... 287-291

near Lobatos, Colo. ........ 269-270

Rio Grande basin ........... 269-378

Rio Puerco, N. Mex., Rio Puerco at . . 329-332

Rio Puerco at Rio Puerco, N. Mex. . . 329-332

below Cabezon, N. Mex. ..... 325-328

near Bernardo, N. Mex. ...... 333-336

Rio Salado near San Acacia, N. Mex. . . 345-348

Robert Lee, Tex., Colorado River at . . 247-252

Rolling Fork River near De Queen, Ark. . 198

Romayor, Tex., Trinity River at .... 216-217

Rosa, N. Mex., San Juan River at ... 454-457

Ruliff, Tex., Sabine River near..... 206-208

Rush Creek at Purdy, Okla. ...... 166-168

Rye, Ark., Saline River near ..... 193-195

Sabine River near Ruliff, Tex. ....'. 208-208

Sabine River basin........... 206-208

St. Francis River at Marked Tree, Ark. . 24

St. Francis River basin ........ 24

St. Louis, Mo., Mississippi River at . . " 21-23

Saline River near Dierks, Ark. ..... 198

near Rye, Ark. .......... 193-195
504 INDEX

Page

Salt Fork Brazos River at County Bridge 

near Railway Crossing near 

Peacock, Tex. ......... 248

at Highway 280 Bridge near Peacock,

Tex. ............. 243

near Aspermont, Tex. ...... 235-238

near Jayton, Tex. ........ 243

Salton Sea basin ........... 484

San Acacia, N. Mex., Rio Grande at . . 292-298 

San Acacia, N. Mex., Rio Salado near . 345-348 

San Acacia, N. Mex., Socorro Main

Canal North at ......... 349

Sanchez, N. Mex., Canadian River near 87-88 

San ndefonso, N. Mex., Rio Grande near 275-281 

San Jacinto River at Magnolia Garden

near Crosby, Tex. ....... 226

near Huffman, Tex. ........ 223-225

San Jacinto River basin ........ 223-226

San Jose River at Correo, N. Mex. . . . 341-344

San Juan River at Rosa, N. Mex. .... 454-457

near Blanco, N. Mex. ....... 458-463

near Bluff, Utah ......... 464-471

San Juan River basin ......... 454-473

San Marcial, N. Mex., Rio Grande at. . 299-305 

San Miguel River below Uravan, Colo. . 433 

San Rafael River near Green River, Utah 445-449 

San Saba River at San Saba, Tex. .... 262

San Saba, Tex., Colorado River near . . 253-255 

Sediment. .............. 14-15

Seven Rivers at Mouth near Lakewood,

N. Mex. ........... 376

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

Similkameen River at Oroville, Wash. . 495-497

near Nighthawk, Wash. ...... 498

Socorro Main Canal North at San Acacia,

N. Mex. ........... 349

Sodium and potassium 9-10 

South Fork Flathead River near Columbia

Falls, Mont. ......... 494

South Fourche La Fave River near Hollis,

Ark. ............. 137

South Wichita River near Crowell, Tex. . 196 

Specific conductance ......... 12

Spring River at Imboden, Ark. ..... 36

near Quapaw, Okla. ....... 81-83

Stewart Creek near Conroe, Tex. . . . 226

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

Striker Creek near Summerfield, Tex. . 212 

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

Sulphur River near Darden, Tex. .... 175-178

Suspended sediment ......... 4-5

Tabler, Okla., Washlta River near . . . 152-155

Tascosa, Tex., Canadian River near . . 92-94

Taylor's Bayou near Fannett, Tex. ... 212

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

Tiff City, Mo., Elk River near ..... 84-86

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

Toyah Creek below Toyah Lake near

Pecos, Tex. ......... 378

Tributaries above Gunnison River ....

Trinity River at Barber Hill Pumping 

Plant near Cove, Tex. ....

at Devers Pumping Plant near Moss 

Bluff, Tex...........

at Lone Star Pumping Plant at 

Anahuac, Tex. ........

at Romayor, Tex. ........

near Oakwood, Tex. .......

Trinity River basin .........

Tulsa, Okla., Arkansas River near . .

U

Upper Columbia River basin ..... 

Ute Creek near Bueyeros, N. Mex. . . 

Ute Park, N. Mex., Cimarron River at

Van Buren, Ark., Arkansas River at .

Verdigris River near Claremore, Okla.

near Inola, Okla. ........

Vermejo River near Dawson, N. Mex..

Vermilion River at Bancker Ferry near

Abbeville, La. ........

Vermilion River basin ........

Victoria, Tex., Ouadalupe River at . . 

Virgin River at Littlefield, Ariz. . . .

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

W

Wagoner, Okla., Neosho River near . . . Wanderers Creek near Quanah, Tex. . . Washita River at Carnegie, Okla. . . . .

near Clinton, Okla. ........

near Durwood, Okla. .......

near Tabler, Okla. ........

Webber Falls, Okla., Arkansas River at. 

Western Gulf of Mexico basins . . . . . Wharton, Tex., Colorado River at . . . Whitefield, Okla., Canadian River near . White River at Batesville, Ark. . . . .

at Calico Rock, Ark. .......

at Clarendon, Ark. ........

at Cotter, Ark. ..........

at Newport, Ark. .........

White River basin ...........

Whitney, Tex., Brazos River near . . . Wichita River near Crowell, Tex. . . .

near Wichita Falls, Tex. . . . . . Woodside, Utah, Price River at . . . .

Yuma, Ariz., Yuma Main Canal at . .

Yuma Main Canal below Colorado River

Siphon at Yuma, Ariz. ....

216-217

213-215

213-222

44-47

485-499 

120-123 

114-115

56-60

69-71

72-74

110-113

199-201 

199-201 

263-264 

478-481 

478-481

78-80 

196

149-151

146-148

156-159

152-155

52-55

202-378

258

105-109 

35 

35

31-33

25-27

28-30

25-36

230-232

196

196

444

422-423 

422-423

U. S. GOVERNMENT PRINTING OFFICE: O 19S3