Quality of Surface 

Waters for Irrigation 

Western United States 

1954

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1430

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1958
UNITED STATES DEPARTMENT OF THE INTERIOR 

FRED A. SEATON, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

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

Washington 25, D. C.
PREFACE

This report was prepared by the Geological Survey in cooperation with other State and Federal 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..................... Lincoln, Nebr.

J. W. Guerin .................... Fayetteville, Ark.

T. B. Dover ..................Oklahoma City, Okla.

J. M. Stow ..................Albuquerque, N. Mex.

J. G. Connor. ..................Salt Lake City, Utah

Burdge Irelan ........................Austin, Tex .

H. A. Swenson .....................Portland, Oreg.

I. W. Walling ...................Sacramento, Calif.

Ill
CONTENTS

Page

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

Acknowledgments ...................................... 5

Collection of samples .................................. 5

Examination of samples ................................ 6

Reporting of data ...................................... 7

Explanation of tables ................................... 8

Discussion of results ................................... 9

Hudson Bay and Upper Mississippi River basins ......... 9

Missouri River basin ................................. 9

Lower Mississippi River basin ........................ 14

Western Gulf of Mexico basin ......................... 15

Colorado River basin .:............................... 16

The Great basin ..................................... 17

Pacific Slope basins in Washington and upper Columbia

River basin ........................... 18

Snake River basin .................................... 18

Pacific Slope basins in Oregon and lower Columbia River

basin ................................. 18

Selected references .................................... 21

Quality of surface waters for irrigation .................. 23

Part 5. Hudson Bay and Upper Mississippi River basins . 23

Red River of the North basin ........................ 23

Sheyanne River near Warwick, N. Dak. ........... 23

Part 6. Missouri River basin ........................ 25

Missouri River main stem .......................... 25

Missouri River near Williston, N. Dak. ........... 25

Missouri River at Pierre, S. Dak. ................ 27

Missouri River at Nebraska C ity, Nebr. ...... .,,,... 29

Yellowstone River basin .................. ,,.,......... 31

Yellows tone River at Billings, Mont. .............. 31

Yellowstone River near Sidney, Mont. ............. 33

Wind River below Boysen Dam, Wyo. ............. 35

Bighorn River at Thermopolis, Wyo. .............. 37

Bighorn River at Bighorn, Mont. ................. 38

Tongue River at Miles City, Mont. ............... 40

Powder River near Locate,Mont. ................. 42

Platte River basin ................................. 44

North Platte River below Guernsey Reservoir, Wyo.. 44

Platte River at Brady, Nebr. ..................... 46
VI CONTENTS

Quality of surface waters for irrigation Continued 

Part 6. Missouri River basin Continued

Platte River basin Continued Page 

Supply Canal (tri-County diversion) near Maxwell,

Nebr. ....................................... 48

South Platte River at Julesburg, Colo. ............ 50

Kansas River basin ................................ 52

Republican River above Medicine Creek at

Cambridge, Nebr. ............................. 52

Part 7. Lower Mississippi River basin ................ 54

Arkansas River basin .............................. 54

Arkansas River below John Martin Reservoir, Colo. 54 

Arkansas River at Arkansas City, Kans. .......... 57

Arkansas River at Ralston, Okla. ................ 60

Cimarron River at Perkins, Okla. ................ 63

Arkansas River at Van Buren, Ark. .............. 70

Canadian River near Whitefield, Okla. ............ 75

Red River basin .................................. 81

Red River at Denison Dam near Denison, Tex. ..... 81

Part 8. Western Gulf of Mexico basins ................ 82

Sabine River basin ................................. 82

Sabine River near Ruliff, Tex. ................... 82

Neches River basin ............................... 84

Neches River at Evadale, Tex. .................. 84

Trinity River basin ............................... 86

Trinity River at Romayor, Tex. .................. 86

San Jacinto River basin ............................ 89

San Jacinto River near Huffman, Tex. ............ 89

Brazos River basin ................................ 90

Brazos River at Richmond, Tex. ................. 90

Colorado River basin .............................. 92

Colorado River at Austin, Tex. .................. 92

Colorado River at Wharton, Tex. ................. 94

Guadalupe River basin ............................. 95

Guadalupe River at Victoria, Tex. ................ 95

Nueces River basin ............................... 97

Nueces River near Mathis, Tex. .................. 97

Rio Grande basin .................................. 98

Rio Grande above Culebra Creek near Lobatos, Colo. 98 

Rio Grande at Otowi Bridge near San Ildefonso,

N. Mex. ..................................... 100

Rio Grande Tiffany Channel at San Marcial,N. Mex. 102 

Rio Grande Floodway at San Marcial, N. Mex. ..... 104

Rio Grande Conveyance Channel at San Marcial,

N. Mex. ..................................... 106

Rio Grande below Elephant Butte Outlet, N. Mex. .. 108 

Rio Grande near El Paso, Tex. ................... 109

Rio Grande below Old Fort Quitman, Tex. ......... 110
CONTENTS VII

Quality of surface waters for irrigation Continued 

Part 8. Western Gulf of Mexico basins Continued

Rio Grande basin Continued Page

Rio Grande at Upper Presidio, Tex. ............... Ill

Rio Grande at Langtry, Tex. .................... 112

Rio Grande at Eagle Pass, Tex. ................. 113

Rio Grande at Roma, Tex. ..................... 114

Pecos River below Alamogordo Dam, N. Mex. .... 115

Pecos River near Artesia, N. Mex. .............. 117

Pecos River below Red Bluff Dam near Orla, Tex. 120

Pecos River near Comstock, Tex. ............... 121

Part 9. Colorado River basin ....................... 122

Colorado River main stem ........................ 122

Colorado River near Glenwood Springs, Colo. .... 122

Colorado River near Cisco, Utah ................ 125

Colorado River at Lees Ferry, Ariz. ............ 127

Colorado River near Grand Canyon, Ariz. ........ 129

Colorado River below Hoover Dam, Ariz.-Nev. ... 131

Diversions and return flows at and below Imperial Dam 133 

Yuma Main Canal below Colorado River siphon at

Ariz. ...................................... 133

Gunnison River basin ............................. 135

Gunnison River near Grand Junction, Colo. ...... 135

Green River basin ................................ 138

Green River at Green River, Utah. ........... ^.. 138

San Juan River basin .............................. 140

San Juan River near Blanco, N. Mex. ........... 140

San Juan River near Bluff, Utah ................. 142

Little Colorado River basin ....................... 145

Little Colorado River at Cameron, Ariz. ......... 145

Virgin River basin ............................... 146

Virgin River at Littlefield, Ariz. ................ 146

Gila River basin ................................. 148

Gila River at Kelvin, Ariz. ..................... 148

Gila River below Gillespie Dam, Ariz. ........... 150

Salt River at Stewart Mountain Dam, Ariz. ....... 153

Verde River below Bartlet Dam, Ariz. ........... 155

Agua Fria River below Lake Pleasant, Ariz. ..... 157

Part 10. The Great Basin .......................... 159

Sevier Lake basin ................................ 159

Sevier River near Lynndyl, Utah ................. 159

Humboldt River basin ............................ 162

Humbolt River near Rye Patch, Nev. ............ 162

Part 11. Pacific Slope basins in California ........... 164

San Joaquin River basin .......................... 164

San Joaquin River near Biola, Calif. ............ 164

San Joaquin River near Vernalis, Calif. ......... 166

Mokelumne River at Woodbridge, Calif. ......... 169
VIII CONTENTS

Quality of surface waters for irrigation--Continued

Part 11. Pacific Slope basins in California--Continued Page

Sacramento River basin ........................... 171

Sacramento River at Knights Landing, Calif. ..... 171

Feather River at Nicolaus, Calif. ............... 174

American River at Fair Oaks, Calif. ............ 177

Part 12. Pacific Slope basins in Washington and

upper Columbia river basin ................... 180

Upper Columbia River basin ....................... 180

Columbia River main stem ...................... 180

Columbia River at International Boundary ......... 180

Columbia River at Grand Coulee Dam, Wash. ..... 182

Yakima River basin .............................. 185

Yakima River at Kiona, Wash. .................. 185

Part 13. Snake River basin ......................... 187

Snake River main stem ........................... 187

Snake River near Heise, Idaho .................. 187

Snake River at King Hill, Idaho .................. 189

Snake River near Clarkston, Wash. ............. 191

Boise River basin ................................ 193

Boise River at Notus, Idaho .................... 193

Part 14. Pacific Slope basins in Oregon and lower

Columbia River basin ........................ 196

Deschutes River basin ............................ 196

Deschutes River at Moody near Biggs, Oreg. .... 196

Columbia River main stem ........................ 197

Columbia River at Maryhill Ferry near Rufus, Oreg. 197

Willamette River basin ........................... 199

Willamette River at Salem, Oreg. ............... 199

Rogue River basin ............................... 201

Rogue River at Grants Pass, Oreg. ............. 201

Index ............................................... 203

ILLUSTRATION

Page 

Plate 1. Recommended stations for irrRation-quality

network in Western United States ...... Facing 4
QUALITY OF SURFACE WATERS

FOR IRRIGATION, 

WESTERN UNITED STATES, 1954

INTRODUCTION

The records of chemical analyses, other physical measurements, and discharge given in this report comprise the fourth 

annual compilation of data for 82 irrigation network stations in 

operation west of the Mississippi River.

Geological Survey Water Supply Papers 1264 and 1362, the annual compilations for water years 1951 and 1952, respectively, 

describe briefly the development of this series of reports. In 

summary, there is an expressed need for comprehensive continuing information about the chemical quality of surface waters used 

for irrigation and the changes resulting from the drainage of irrigated lands.

In recognition jof this problem the Subcommittee on Hydrology, 

Federal InteragencyRiver Basin Committee on February 6, 1950, 

approved a list of 106 network stations on streams in Western 

United States at which water samples were to be collected and analyzed with particular reference to the use of these stream waters 

for irrigation. These stations, with pertinent information about 

periods of operation, are shown in the following table. Of the 106 

stations selected, 39 were already being operated by the Geological Survey and 7 by the International Boundary and Water Commission. From the remaining stations on the list, 30 were selected for activation by the U. S. Geological Survey during the 

fiscal year 1951. In addition, 3 stations previously operated in 

connection with other programs and scheduled to be discontinued 

were to be included in the list to be operated by the Geological 

Survey ( the Subcommittee amended the list on October 2, 1952, 

to include the three additional stations, bringing the recommended 

number of irrigation network stations to a total of 109).

It was contemplated that the network stations would be located 

at stream-flow gaging stations and that the program of collecting 

and analyzing the samples and reporting the findings would be the 

responsibility of the Geological Survey. The scope of the chemical analyses would provide for the calculation of the salt burden
QUALITY FOR IRRIGATION, 1954

Irrigation-Quality Network Stations in Western United States 

[Selected by Subcommittee on Hydrology, Federal Interagency River Basin Committee, 1950]

No.

1

2

Q

4 

5

fi

7

8

9 

10

11

12

13

14

15

16

17

18 

18q

19

20

21

?,?,

23

24

?,5

26

27 

28

9,9

30

31

32

33

34 

35 

36 37

38

39

40

41 

42

43

44

45

46

47

48

4.0

50

51

52

53

54

Geological 

Survey 

Part 

no.

5

6

7

8

Stream

Missouri River....................

Wind River........................

Tongue River.....................

N. Platte River..................

Platte River.......................

Diversion).

Republican River................ 

Smoky Hill River................

Arkansas River ................... 

Cimarron River........... .......

Neches River..................... 

Trinity River.....................

Guadalupe River....... .........

Rio Grandef ......................

Pecos River.......................

Location

near Williston, N. Dak .............

at Nebraska City, Nebr .............

below Boysen Dam, Vi/yo.. .. .....,

at Miles City, Mont............ .....

at Brady, Nebr....................... . 

near r^axwell Nebr «

Cambridge, Nebr. 

near Hardy, Nebr.....................

Colo.

at Van Bur en, Ark.................... 

at Mannford, Okla ...................

near Tascosa Tex

Tex.

at Evadale, Tex.............. ........ 

at Romayor, Tex.....................

at Victoria, Tex......................

Colo.

N. Mex.

N. Mex. 

near El Paso Tex

at Eagle Pass, Tex....... ...........

near Artesia, N. Mex................

Date 

established

Dec. 5. 1950

Oct. 3, 1950

Jan. 4, 1951 

Dec. 15, 1950

Jan. 3, 1951

Nov. 24, 1954 

Jan. 1, 1951

Oct. 2, 1950

Jan. 4, 1951 

Jan. 4, 1951

Jan. 17, 1951

Jan. 17, 1951

Dec. 7, 1950

Feb. 28, 1951 

Mar. 1, 1951

rv*«- i 104.^

Dec. 22, 1950

Apr. 3, 1950

Jan. 10, 1951

Oct. 8, 1951

Jan. 1, 1950

Oct. 1, 1945 

Oct. 1, 1949 

Oct. 1, 1952

June 2, 1948

Sept. 1, 1946

May 1, 1944

Sept. 10, 1946

Oct. 1, 1947

Oct. 1, 1947 

Sept. 1, 1945 

Sept. 1, 1945

Sept. 1, 1945

Oct. 1, 1947

On*- 1 1 QA7

AT,, 11 1 Q4A

Sept. 1, 1945 

Oct. 1, 1947

Oct. 11, 1946

Oct. 23, 1947

July 1, 1948

.............1933

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

i Q^n

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

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

.............1938 

1944

June 26, 1937

July 1, 1937
INTRODUCTION 

Irrigation-Quality Network Stations in Western United States Continued

No.

55 

56

57 

58 

59 

60 

61 

62 

63

64 

65 

66

67 

68 

69 

70 

71 

72 

73 

74 

75 

76 

77 

78 

79 

80 

81 

82 

83 

84

84a 

85 

86 

87 

88 

89 

90 

91 

92 

93 

94 

95 

96 

97 

98 

99 

100 

101 

102

103 

104 

105 

106

107 

108 

109

Geological 

Survey 

Part 

no.

8 

9

10 

11

12 

13

14

5

6

9

Stream

Colorado River ..................

Colorado River (Yuma Main 

Canal).

Green River ......................

Little Colorado River.... ......

Gila River........................

Humboldt River......... ........ 

San Joaquin River...............

San Joaquin River............... 

San Joaquin River............... 

Calaveras River (Stockton 

Diverting Canal).

Feather River.......... ..........

Snake River............. .........

Sheyenne River.................. 

Stations added by Subcomm 

North Platte River...............

Platte River.......................

Virgin River............... .......

Location

near Glenwood Springs, Colo.....

at Lees Ferry, Ariz. ...... ...... .....

below Hoover Dam, Ariz. -Nev..

below Colorado River Siphon 

at Yuma, Ariz.

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

at Cameron, Ariz....................

below Gillespie Dam, Ariz........ 

at Stewart Mountain Dam, Ariz..

below Lake Pleasant Dam, Ariz..

at Palisade Nev

near Rye Patch, Nev ............... 

below Friant Dam, Calif ..........

near Vernalis, Calif ................ 

at Antioch, Calif....................

at Nicolaus, Calif................... 

at Fair Oaks Calif

at Grand Coulee Dam, Wash .....

near Heise, Idaho........ ...........

at King Hill, Idaho........ .........

at Maryhill, Ferry nr. Rufus, 

Oreg.

near Warwick, N. Dak.............. 

ittee, October 2, 1952

at Little field, Ariz.................

Date 

established

July

Oct. 

Oct. 

Oct. 

Oct. 

Oct.

Oct. 

Oct.

1, 1937 

.......1935

1941 

1928 

1, 1947 

1939 

1939

1942 

1931

Oct. 1928 

Oct. 1, 1945 

Oct. 1929 

Jan. 17, 1951 

Dec. 1, 1950 

Dec. 1, 1950 

Dec. 9, 1950 

Dec. 9, 1950 

Dec. 1, 1950

Mar. 22, 1951

Dec. 10, 1951

Mar. 1, 1951 

Mar!""i" 1951

Nov. 1952 

Mar. 1, 1951

Feb. 

Feb. 

May 

Nov 

Nov.

26, 1951 

26, 1951 

1, 1951 

15, 1951 

25, 1950

Dec. 

Jan.

Mar.

Nov.

Nov. 

Dec.

Dec. 

Feb. 

Jan. 

Jan.

30, 1952 

8, 1953

27, 1951

14, 1951

21, 1950 

I, 1950

1952 

I, 1951 

5, 1953 

8, 1951

July 1949

Dropped from list Jan. 24, 1954. Replaced by station Wind River below Boysen Dam. 

Discontinued Nov. 20, 1953.
4 QUALITY FOR IRRIGATION, 1954

^Discontinued Nov. 20, 1953

Discontinued Sept. 30, 1953.

eDiscontinued Mar. 5, 1954.

'Operated by International Boundary and Water Commission.

SDiscontinued Feb. 15, 1954.

of streams and in general would conform with the current Geological Survey standards for the comprehensive investigation of 

the chemical quality of surface waters.

The following criteria were recommended in the selection of 

the key network stations.

lt All recommended stations should be located on streams 

west of the main stem of the Mississippi River.

2. All proposed stations should relate primarily to irrigation 

although multiple-purpose needs which include irrigation may be 

considered.

3. All stations should be located at or near stream-flow gaging stations. The most nearly up-to-date list of gaging stations 

currently operated by the U. S. Geological Survey (which comprises all but a small percentage of all gaging stations) will be 

found in the most recently published Geological Survey watersupply papers for the areas involved.

4. Consideration should be given to the location of irrigation 

development areas that are now affecting or are likely to affect 

the chemical quality of the river water.

5. Only those stations should be proposed that are likely to reflect important changes in chemical quality over a period of years. 

Stations operated for relatively short periods (5 years or less), 

as would be required for intensive studies of specific projects, 

should not in general be included.

Plate 1 .is a .plot of the recorumended list of 109 network stations on streams in Western United States. The 82 stations in operation in 1954 are identified by a solid circle. The period of record, in years, is also shown at each of these stations. In a few 

instances the period of record differs from that obtained from the 

date established by the Subcommittee, as earlier records were 

included also. Proposed stations are identified by an open circle.

During the 1954 water year one network station was activated 

on the Wind River below Boys en Dam, Wyoming replacing the 

Bighorn River station at Thermopolis, Wyoming which was discontinued in January 1954. Both partial records are included in 

this report for comparative purposes. Five network stations 

were discontinued during the water year. They are the Grand 

River near Wakpala, S. Dak. , Cheyenne River near Eagle Butte, 

S. Dak., Canadian River near Tascosa, Tex. , San Jacinto River 

near Huffman, Tex. and the Deschutes River at Moody near Biggs, 

Oreg. As in 1952 and 1953 the record for Rio Grande Tiffany
COLLECTIONS OF SAMPLES 5

Channel at San Marcial, is included; also the record for the .Conveyance Channel for the Rio Grande at San Marcial is included this 

year; although these stations are not a part of the network list. 

The record at this station represents sampling of an artificial 

channel which bypasses the regular gaging station. During low 

flow the Tiffany Channel carries drainage water differing decidedly 

in quality from that in the main channel.

ACKNOWLEDGMENTS

Agencies that have each contributed to some part of the data 

published herein include: The Agriculture Research Service, and 

the Soil Conservation Service, U. S. Department of Agriculture; 

the Bureau of Reclamation, U. S. Department of the Interior; the 

Corps of Engineers, U. S. Department of the Army; the State engineers for each of the 17 Western States and for Louisiana and 

Arkansas, the State Boards of Health, the El Paso, Tex., Department of Water and Sewage; the Ministry of Hydraulic Resources 

of Mexico.

During 1954, the United States Section of the International Boundary and Water Commission operated the stream gaging stations 

for the following Rio Grande stations included in this report: El 

Paso, Fort Quitman, Upper Presidio, and Langtry; it also operated 

the Pecos River station near Comstock. The Mexican Section 

operated the stream gaging stations on the main stem at Eagle 

Pass and Roma. Each section operated the gaging stations on tributary streams, floodways, and diversions within its own country.

Descriptive headings and discharge data for the seven stations 

operated by the International Boundary and Water Commission, 

were obtained from Water Bulletins 23 and 24 prepared jointly by 

the United States and Mexican Sections of the International Boundary and Water Commission. These publications contain stream 

discharge and related data for 1953 and 1954. Analyses for seven 

Rio Grande main stem stations and for the Pecos River near Comstock, Tex. , were obtained from the U. S. Salinity Laboratory, 

Riverside, Calif.

Additional contributions of data have been made by individuals, 

corporations, and other State and Federal agencies, and their cooperation in acknowledged with appreciation.

COLLECTION OF SAMPLES

In accordance with the recommendation of the Subcommittee, 

where practicable, one sample was collected each day throughout
6 QUALITY FOR IRRIGATION, 1954.

the water year. In general, each sample was taken in an 8- or 

12-ounce glass bottle provided with a pressure-type or positiveseal closure to prevent escape of dissolved gases. Each sample 

was integrated in the vertical section of a stream usually at about 

midpoint of flow by lowering the open sample bottle to the bottom 

and returning it to the surface during the filling process.

At most stations the samples were collected by local residents 

hired for the purpose. The local sample collector recorded on 

each bottle the name of the stream, location, gage height (if practicable), water temperature, time of day, date, and collector's 

name or initials. Samples were shipped to the laboratory or 

picked up by technical personnel on a predetermined schedule. 

Visits were made periodically by technical personnel to check on 

sampling procedures.

EXAMINATION OF SAMPLES

Upon receipt of samples in the laboratory, they were recorded 

and stored away from direct sunlight until opened for analysis. 

Specific conductance was determined with a conductance bridge 

on each sample as soon as opened. These data provided a basis 

for compositing a series of daily samples, for complete analysis. 

In general, a minimum of three composites a month consisting 

of equal volumes of approximately 10 daily samples, were prepared 

for chemical analysis. Individual samples that showed differences in conductance of more than 30 percent of the mean for the 

period were not included in the composite, but were grouped separately for additional composite samples or analysis of the individual sample was made. For those stations where acceptable 

discharge values were reported with the samples, or could be 

obtained promptly from rating tables, samples were prepared by 

mixing volumes of individual samples in proportion to water discharge.

The following series of 15 determinations (schedule 1) were 

made on all composite samples for all new network stations during 

the first year of operation: Silica, iron, calcium, magnesium, 

sodium, potassium, bicarbonate, carbonate, sulfate, chloride, 

fluoride, nitrate, boron, dissolved solids, and specific conductance. The following values were calculated from the analytical 

data: Dissolved solids in tons per acre-foot, dissolved solids in 

total tons, total hardness, noncarbonate hardness, and percent 

sodium.

It was further recommended by the Subcommittee that during the 

second and third years the following series of 11 determinations
REPORTING OF DATA 7

(schedule 2) would be made on all composite samples: Calcium, 

magnesium, sodium, bicarbonate, carbonate, sulfate, chloride, 

nitrate, boron, dissolved solids, and specific conductance. Hardness, noncarbonate hardness, percent sodium, total tons and tons 

per acre-foot would be calculated as in schedule 1.

For the 1954 data there were notable exceptions to the recommended schedules as outlined above. At some stations, where 

more complete data were needed for other uses, the number of 

constituents determined was increased. Conversely, some stations that had been in operation for several years prior to this 

project, during which time at least the minimum determinations 

in schedule 1 were completed, were immediately placed on a reduced analytical schedule.

In the fourth and succeeding years (unless significant changes 

become apparent) it was recommended that the following determinations (schedule 3) would be made on all composite samples 

as long as the program is in effect: Calcium and magnesium 

(either separately, or together by the recently developed ethylenediamine tetraacetic acid titration test for hardness), sodium, dissolved solids, and specific conductance. In addition, four complete 

analyses (schedule 1) would be made each year, one analysis to be 

made on a composite sample during each quarter. Certain additional determinations above these minimum requirements were 

to be made if deemed necessary to define widely varying characteristics of the stream water.

All laboratory determinations were to be made in accordance 

with standard procedures used by the Geological Survey. These 

procedures are based on methods found in authoritative publications on water analysis.

REPORTING OF DATA

In order to release the data in the form most widely used in the 

evaluation of irrigation waters, the results of analyses in this 

compilation are given in equivalents per million, rather than the 

conventional unit part per million. Some agencies that actively 

participate in irrigation water-quality investigations prefer to express results in milligrams per liter (mg/ 1) and milliequivalents 

per liter (meq/1). However, for all practical purposes where concentrations of dissolved solids are less than about 7,000 parts 

per million, no correction for density of the water is necessary 

and the units reported in each method are considered to be synonymous.
8 QUALITY FOR IRRIGATION, 1954

If results are desired in parts per million they can be calculated by multiplying the reported values in equivalents per million 

by the chemical combining weights of the individual constituents. 

Pertinent physical data and water discharge are also included in 

the tables.

EXf'LANATION OF TABLES

The tables of analyses beginning on page 24 include a brief 

descriptive heading summarizing the more pertinent features at 

each station as follows:

Location of station is given generally as the distance in land or 

river miles from a town or other political or geographic feature. 

In Survey practice the term "at" generally implies that the station 

is within a mile radius of the named town whereas "near" implies 

that it is beyond a mile radius.

Drainage area above the gaging station was obtained from the most 

recent published records of the annual reports of the Geological 

Survey on Surface Water of the United States, and from the International Boundary and Water Commission.

Records available are given for all periods during which samples, 

other than infrequent, were collected for chemical analyses. It 

does not include the periods for which discharge records are 

available.

Extremes for the current year and for the period of record are reported for specific conductance and percent sodium because of 

their widespread application in the evaluation of analyses of water 

used for irrigation. The results for specific conductance are 

based on the measurement made at the laboratory upon receipt of 

the sample from the field. Data for percent sodium were obtained 

from the composite-sample analysis.

Remarks include sources of data, additional explanation concerning the records, and offices where the records of chemical quality 

may be obtained.

Discharge records were obtained from the responsible Geological 

Survey Surface Water Branch offices except for the seven stations 

operated by the International Boundary and Water Commission. 

Discharge data are shown in acre-feet, calculated from the mean 

daily discharge in cubic feet per second by multiplying by the 

factor 1. 983.
DISCUSSION OF RESULTS 9

Analytical values are reported in equivalents per million for cations 

and anions. The equivalent is the weight with reference to some 

standard (such as the combining weight either of oxygen, 8, or 

of hydrogen, 1.008) of that quantity of an element, radical, or 

compound, that will react with another element, radical, or compound to complete a definite chemical reaction. An equivalent of 

an element or ion is exactly equal in combining power to one 

equivalent of another element or ion. As previously discussed, 

for concentrations of dissolved solids that are normally encountered in water for irrigation, an equivalent per million is equal 

to a milliequivalent per liter. Silica, which is considered to be 

present in the colloidal state, and boron, are reported in parts 

per million. Percent sodium is calculated as follows:

Na x 100

 , where all constituents are reported in equivalents 

Na + K + Ca+Mg

per million.

At the recommendation of the Subcommittee, sodium-adsorptionratio (SAR) is published for all network stations beginning October 

1952. The term is defined and described under "Sodium hazard" 

on page 20.

DISCUSSION OF RESULTS

Discharge data and dissolved-solids loads for stations operated 

in 1954 are summarized in the following table.

HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

Red River of the North basin. Runoff in the upper Sheyenne River basin 

was higher in 1954 than for the 1951, 52, and 53 water years, 

being triple the runoff for 1953. The greatest runoff during 1954 

was in June and July.

Percentage composition of the water in 1954 differed little from 

the previous three years, but the weighted average dissolved 

solids decreased by nearly 100 ppm from 1953, probably as the 

result of increased runoff.

MISSOURI RIVER BASIN

Missouri River-main stem. Flow in the Missouri River during 1954 

was regulated by Ft. Peck, Garrison, and Ft.Randall Reservoirs. 

Storage in Garrison Reservoir began in November 1953. Water 

is stored in the reservoirs for navigation, flood control, and 

power generation. Some water is released for power generation

461638 O -58 -Z
10 QUALITY FOR IRRIGATION, 1954

Summary of water discharge, and tonnages of dissolved solids

Station

Red River of the North basin 

Sheyenne River near Warwick, N. Dak....................................

Missouri River main stem 

Missouri River near Williston, N. Dak.....................................

Missouri River at Pierre, S. Dak.............................................

Missouri River at Nebraska City, Nebr.. ............................ .......

Yellowstone River basin 

Yellowstone River at Billings, Mont........................................

Yellowstone River near Sidney, Mont.....................................

Wind River below Boys en Dam, Wyo.. ................................ ....

 Bighorn River at Thermopolis, Wyo*.. .................. ................ ..

Bighorn River at Bighorn, Mont................... ....................

Tongue River at Miles City, Mont........................................

Powder River near Locate, Mont................... . .................

Platte River basin 

North Platte River below Guernsey Reservoir, Wyo................ ..

Platte River at Brady, Nebr........................ ... ................

Supply Canal (Tri-County Diversion) near Maxwell, Nebr............

South Platte River at Julesburg, Colo.. ...................... ........ .

Kansas River basin 

Republican River above Medicine Creek at Cambridge, Nebr.......

Arkansas River basin 

Arkansas River below John Martin Reservoir, Colo.....................

Arkansas River at Arkansas City, Kans. ..................... ...............

Arkansas River at Ralston, Okla. ......... ....... ............... ....

Cimarron River at Perkins, Okla.... .........................................

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

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

Red River basin 

Red River at Denison Dam near Denison, Tex.......... .................

Sabine River basin 

Sabine River near RuHff, Tex............................................ ..

Neches River basin 

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

Trinity River basin 

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

San Jacinto River basin 

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

Brazos River basin 

Brazos River at Richmond, Tex..............................................

Colorado River basin 

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

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

Guadalupe River basin 

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

Nueces River basin 

Nueces River near Ma this, Tex.............................................

Rio Grande basin 

Rio Grande above Culebra Creek near Lobatos, Colo..................

Rio Grande at Otowi Bridge near San Ildefonso, N. Mex.. ...........

Rio Grande Tiffany Channel near San Marcial, N. Mex..............

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

Rio Grande Conveyance Channel at San Marcial, N. Mex...........

Rio Grande below Elephant Butte Outlet, N. Mex......................

Rio Grande near El Paso, Tex...............................................

Rio Grande below Old Fort Quitman, Tex................................

Rio Grande at Upper Presidio, Tex.........................................

Rio Grande at Langtry, Tex............................. ............... ...

Rio Grande at Eagle Pass, Tex.... ........................................._

Rio Grande at Roma, Tex....................................................

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

Pecos River near Arte si a, N. Mex.. ............... ...... ........ ..........

Runoff 

(acre -feet)

48, 280

a !6, 570,000

17,080,000

22,900,000

4,575,000

6,759,000

810,400

1,958,000

153,600

163,500

692,500

i qo if)n

1,029,000

101,000

63, 480

116,400

331,000

559,100

220, 900

6, 134, 990

2,151,000

2, 859, 360

2,966,000

1,531,000

1,227,000

1, 974, 000

684, 400

637,400

397,000

336,300

71,570

450,600

133,200

a !03, 900

a82,320

245,400

:::::::::::::::::!

66,500

74.180

Dissolved 

solids 

(tons per 

acre -foot)

0.62

a.59

.61

.60

.25

.61

a 69

a1.01

.73

1.75

a.59

CQ

.71

2

n<*

a.49

2.11

1.75

2 97

5.52

1.21

2.04

1.23

.16

.17

.47

.62

.32

.33

.41

07

.34

.32

1.06

ai.24

2.98

4.77
DISCUSSION OF RESULTS 11

Summary of water discharge, and tonnages of dissolved solids Continued

Station Runoff 

(acre-feet)

Dissolved

solids 

(tons per 

acre-foot)

Rio Grande basin Continued

Pecos River below Red Bluff Dam near Orla, Tex......................

Pecos River near Comstock, Tex............................................

Colorado River main stem

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

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

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

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

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

Diversions and Return Flows at and below Imperial Dam

Yuma Main Canal Below Colorado River siphon at Yuma, Ariz..... 

Gunnison River basin

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

Green River basin

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

San Juan River basin

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

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

Little Colorado River basin

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

Virgin River basin

Virgin River at Little field, Ariz............................................

Gila River basin

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

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

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

Verde River below Bartlet Dam, Ariz......................................

Aqua Fria River below Lake Pleasant Dam, Ariz........................

Sevier Lake basin

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

Humboldt River basin

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

San Joaquin River basin

San Joaquin River near Biola, Calif........................................

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

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

Sacramento River basin

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

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

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

Columbia River main stem

Columbia River at International Boundary................................

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

Yakima River basin

Yakima River at Kiona, Wash...............................................

Snake River main stem

Snake River near Heise, Idaho...............................................

Snake River at King Hill, Idaho.............................................

Snake River near Clarkston, Wash..........................................

Boise River basin

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

Deschutes River basin

Deschutes River at Moody near Biggs, Oreg..............................

Columbia River main stem

Columbia River at Maryhill Ferry near Rufus, Oreg...................

Willamette River basin

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

Rogue River Basin

Rogue River at Grants Pass, Oreg...........................................

63,970

883,400

a l,772,000

6,101,000

6, 229, 000

10,680,000

338,200

a 637,300

a2, 473, 000

514,200 

a948,400

a !24,700

186,200 

43,630 

506,000 

295,300 

a27,640

132,000 

a !00,400

249, 300

1,717,000

a266, 000

8,275,000

5,343,000

2,068,000

a86, 390,000 

98, 040, 000

3,091,000

4, 994, 000 

a6, 563, 000 

a35,130, 000

799,000

151,400,000

21,300,000

3, 354, 000

9.25

.55

a 1.39

1.05

1.16

.92

.99

a 1.69

a.68

.29 

a.80

2.54

.69

3.90

.72

.38

a.34

2.35

.06

.32

a.05

.16

a.09 

. .06

a.12 

.12

.18

.29

a.45

.22

.30

.14 

.07 

.10

For period of sampling only. See individual station records and footnotes for additional description of discharge data used in computations of weighted averages.
12 QUALITY FOR IRRIGATION, 1954

all of the time; high flows are impounded for flood control and to 

provide water for regulating the flow of the stream for navigation 

from early spring until late fall.

In 1954 the flow at Williston, Wyo., was 12 percent above 

average (26 year average), at Pierre near average (25 year average), and at Nebraska City, Nebr., 11 percent below average 

(24 year average). Flow in the upper Missouri basin was about 

10 to 20 percent below average. Discharge above 100,000 cfs 

occurred at Nebraska City June 21 and 22, as a result of storms 

in the central reach of the river.

Spring runoff in the Missouri River was stored in Ft. Peck 

Reservoir until after the spring runoff from the Yellowstone River 

basin had passed Williston. In the late summer, when flow in the 

Yellowstone was low, the impounded water in Ft. Peck Reservoir 

was released in order to maintain flows downstream. Water in 

the Missouri River above Ft. Peck and water in the Yellowstone 

River are on the average similar in quality; however, the water 

in the upper Missouri River is impounded and is therefore of a 

more constant quality when released from storage. Large fluctuations in water quality at Williston are due principally to fluctuations in the quality of the water in the Yellowstone River and to 

changes in the proportion of upper Missouri River water to Yellowstone River water.

Although Garrison Reservoir began to impound water in 

November 1953, the effect on the quality of the water in the river 

was small because only about 3 percent of the flow at Garrison 

for the year was actually impounded. About 12 percent of the flow 

at Ft. Randall was impounded and added to the water already in 

storage.

The quality of the water is similar at the three sampling stations along the river. A comparison of the weighted average 

values for dissolved solids and specific conductance shows a 

slight increase in mineralization between Williston and Pierre, 

S. Dak., and a decrease between Pierre and Nebraska City. This 

same phenomenon also occurred in 1953. The increase in mineralization probably is due to the influence of tributary streams in 

in the Dakotas; the decrease probably is due to dilution by the 

Niobrara, Platte, and possibly the Big Sioux Rivers. The quality 

of the water has remained essentially the same as it was in 1953 

at the Williston station,but was slightly improved at Pierre and at 

Nebraska City.

Of the dissolved solids load at Nebraska City during 1954 about 

30 percent was contributed by the Yellowstone River basin, about 

40 percent by the Upper Missouri basin, about 6 percent by the
DISCUSSION OF RESULTS 13

drainage are between Williston and Pierre, and about 24 percent 

by the drainage afea between Pierre and NebraskaCity. The dissolved solids load at Nebraska City was 23 percent lower than for 

the 1953 water year.

Yellowstone River basin. Runoff in the basin during 1954 was about 

the same as in 1953 and it was lower than in 1951 and 1952 which 

were years of above normal discharge, and also lower than the 

average for the 1934-54 period of discharge record.

Of the total dissolved solids load of the Yellowstone River at 

Sidney, 28 percent was contributed by the Yellowstone River basin 

above Billings, 48 percent by the Bighorn River basin, 3 percent 

by the Tongue River basin, and 7 percent by the Powder River 

basin. Fourteen percent of the dissolved solids load at Sidney is 

contributed by the minor tributaries and the Yellowstone Valley 

between Billings and Sidney.

There are diversions for about 1, 250, 000 acres of irrigated 

land in the Yellowstone basin above Sidney, Montana. Of this total 

acreage about 30 percent is in the Yellowstone River basin above 

Billings, Mont., 35 percent in the Bighorn basin, 10 percent in 

the Tongue and Powder basins, and the remaining 25 percent in 

the Yellowstone Valley and in minor basins between Billings and 

Sidney. Water used for irrigation in the Yellowstone Valley and 

in the minor basins between Billings and Sidney probably accounts 

for some of the loss of water between Billings and Sidney and for 

much of the salt load (14 percent) that is not measured above 

Sidney.

Major reservoirs in operation in the basin are Buffalo Bill 

Reservoir in the Shoshone River basin and Bull Lake, Pilot Butte, 

and Boysen Reservoirs in the Wind River basin. About 8 3,000 acre 

feet of water was impounded in Boysen, the largest reservoir in 

the basin, while more water (about 53,000 acre feet) was released 

from Bull Lake and Buffalo Bill than was impounded during the 

year. The reservoirs tend to make the water quality downstream 

more uniform with respect to time. Data for 1954 for the Wind 

River below Boysen Dam, Wyo., indicate that with a few exceptions daily specific conductance ranged from about 650 to 900 

micromhos; further downstream daily specific conductance of 

the Bighorn River at Bighorn ranged from about 625 to 1,400 

micromhos.

The quality of the water in the basin was very similar to that 

for the 1953 water year. However, because runoff in the Tongue 

and Powder River basins was much lower in 1954, the quality of 

water in these streams was poorer than in 1953; weighted average
14 QUALITY FOR IRRIGATION, 1954

dissolved solids concentrations were about 100 ppm greater in 

1954 than in 1953.

Platte River basin. Runoff in the basin upstream from Brady, Nebr., 

was less than one-half of the long-time average. Flow in the North 

Platte and South Platte Rivers is affected by trans-basin diversions, reservoirs (Seminoe, Pathfinder, Alcova, Guernsey, and 

McConaughy on the North Platte; Elevenmile Canyon andCheesman 

on the South Platte), power developments, ground-water withdrawals, and diversions for and return flow from irrigation developments.

Water in the Platte River is utilized to such an extent that flow 

is reduced to nearly zero in certain reaches during parts of the 

year. For example, near Grand Island, Nebraska the river is dry 

for most of the summer. Correlation of chemical quality data at 

different stations along the stream is very difficult because water 

flowing past upstream stations sometimes does not reach the downstream stations; the water flowing past downstream stations is frequently composed of relatively local recharge. The mineral load 

carried by the Supply Canal near Maxwell, Nebr. is about five times 

that carried by the Platte River at Brady, Nebr. Much of the flow 

in the river at Brady is ground-water inflow and inflow from several small creeks draining the area to the north.

Kansas River basin. The Saline River at Tescott, Kansas, station 

was discontinued September 30, 1953. Runoff at the Republican 

River above Medicine Creek at Cambridge, Nebraska was about 

one-half of the 1951, 1952 and 1953 water years. However, the 

quality of the water remained essentially the same in 1954 as it 

was in 1953, primarily because of regulation by Trenton dam 

(Swanson Lake) and Enders Reservoir.

Major reservoirs above the station, Republican River above 

Medicine Creek at Cambridge, include Bonny Reservoir, on the 

South Fork Republican river, Enders Reservoir on Frenchman 

Creek and Swanson Lake on the main stem.

LOWER MISSISSIPPI RIVER BASIN

Arkansas River basin. An overall picture of the water quality record 

for the 1954 water year would be one of greatly deficient runoff 

and the consequent increases in the dissolved chemical loads. One 

deviation from this would be the highly regulated station below 

John Martin Reservoir, Colo., where the runoff release was 73 percent of the deficient previous year and was only 40 percent of the 

average for 16 years of record. In spite of the decreased flow the 

weighted water quality at the John Martin Reservoir was improved
DISCUSSION OF RESULTS 15

over the previous year. This is because 45 percent of the runoff 

occurred in August when the chemical concentrations were the 

lowest of the water year. At Arkansas City, Kans. the average 

river discharge was 27 percent less than the 33-year average; and 

at Ralston, Okla. the average river discharge was 17 percent less 

than the 29-year average for that station. These decreases inflow 

were accompanied by increases in concentrations of all constituents as well as the percent sodium and the sodium-adsorptionratio.

The Cimarron River at Perkins, Okla. records show an increase 

in discharge from 169,000 acre-feet in 1953 to 220,900 acre-feet 

and an expected decrease in the dissolved mineral load from 6. 50 

tons per acre-foot in 1953 to 5. 52 tons per acre-foot. The discharge of 220,900 acre-feet is about 27 percent of the average for 

15 years of record at this station. Runoff for the Arkansas River 

at VanBuren was 6.1 million acre-feet as compared to 9.4 million 

acre-feet in 1953 and was 27 percent of the average discharge for 

27 years of record. All mineral constituents increased in concentration slightly over the 1953 water year except sodium and chloride which increased 62 percent over the previous year. This is 

due to proportionally larger flow from the Cimarron River during 

the year.

Discharge for the Canadian River near Whitefield was 2. 2 million acre-feet which is slightly less than the 2.4 million acre-feet 

for the 1953 water year. This decrease in discharge was accompanied by a 70 percent increase in the average weighted dissolved solids in parts per million. All of the network stations in the 

basin had a lower dissolved chemical load in tons in 1954 than in 

1953 except for the Cimarron station which had a slight increase 

in chemical load.

WESTERN GULF OF MEXICO STATION

The Red River at Denison Dam near Denison, Tex. had a discharge slightly higher than 1953 but still 24 percent below the average for the 31 years of discharge record for the station. The 

weighted average dissolved solids concentration and the unit load 

for the 1954 water year were 908 parts per million and 1. 23 tons 

per acre-foot and were slightly lower than the 1953 year.

Runoff from the Sabine River to the Nueces River was generally 

less in 1954 than 1953, and dissolved solids concentrations were 

higher.
16 QUALITY FOR IRRIGATION, 1954

Rio Gramfe basin. The discharge of the Rio Grande above Culebra 

Creek near Lobatos, Colorado, during the 1954 water year was 53 

percent of the previous year's discharge and 14. 5 percent of the 

yearly average for the fifty-five years of record at this station. 

ThQ weighted average analysis at this station shows that the chemical composition of the water was also lower than for the 1953 

water year. This direct variation between the discharge and the 

weighted chemical analysis is probably due to variations in subirrigation practices in the San Luis Valley of Southern Colorado.

The International Boundary and Water Commission reported the 

flow of the Rio Grande from El Paso, Tex. to Langtry, Tex. was 

much below normal. From the Del Rio station to the Laredo station 

the yearly volume of flow was greatly above normal due to one of 

the greatest floods of record which originated on the Pecos River 

and Devils River watersheds.

The annual tonnage of salts carried by the river was much below 

normal from El Paso to Langtry, Tex. Tonnages from Langtry to 

Falcon Reservoir above Roma were only slightly below normal. 

Below Falcon Reservoir tonnages were about half of normal because of the large volume of water in storage at the end of the 

year.

COLORADO RIVER BASIN

The quality of surface water supplies for irrigation in New Mexico and Arizona generally was poorer than in the 1952 and 1953 

water years.

Generally, most of the changes in water quality at network stations were due to fluctuations in stream runoff and irrigation 

practices. Runoff for most of the stations in the basin was less 

than for the previous year.

Colorado River main stem. An increase in the concentration of dissolved solids was noted for the Colorado River Basin generally. This 

change may be attributed to a decrease in runoff as compared to 

the previous year. With a decrease of about 45 percent in flow the 

dissolved solids increased approximately 38 percent over last year 

at the Glenwood Springs, Colorado River station. This pronounced 

difference in concentration upstream was modified considerably at 

the station below Hoover Dam, possibly because of the mixing effect of the reservoir.

Gunnison River basin. An unusually good comparison is possible for 

the Gunnison River station at Grand Junction, Colorado. With 96
DISCUSSION OF RESULTS 17

percent and 98 percent of the flow for 1953 54 represented by analyses it was noted that a decrease of about 50 percent in flow was 

accompanied by an increase of approximately 40 percent in dissolved solids and only 7 percent sodium.

Green River basin. A decrease from last year of about 25 percent 

in flow had only slight effect (less than one-half of 1 percent) on the 

concentration of dissolved solids.

San Juan basin. A slight increase in total flow for the year was 

accompanied by a slight increase in dissolved solids and percent 

sodium over the previous year. This may be due to solution of 

precipitated salts from last year's extreme low flow in an arid 

climate.

Little Colorado River basin. Weighted averages were not computed for 

the Little Colorado River at Cameron, Arizona, because of the 

difficulty of correlating surface water and quality of water records. 

Moenkopi Wash enters the river between the sampling and gaging 

stations and has considerable flows at times.

Virgin River basin. This station downstream from an area of intense 

irrigation had an increase inflow of about 35 percent over the 1953 

water year. This may account for the decrease of- approximately 

17 percent in specific conductance and total solids.

Gila River basin. The annual runoff in most of the Gila and Salt 

River watersheds in southern Arizona was much higher than for 

the previous water year. Most of this increase in runoff came 

from heavy rains during March, July, August, and September. 

This runoff was higher than average; and decreased the weighted 

average analysis computed for the stations Gila River at Kelvin, 

Arizona and Gila River below Gillespie Dam, Arizona. The yearly 

weighted average analysis of the water released from Stewart 

Mountain Dam does not show a decrease in chemical constituents 

because the heavy runoff was stored in reservoirs higher in the 

watershed.

THE GREAT BASIN

Sevfer Lake basin. Runoff in the heavily irrigated Sevier River Basin 

was considerably less than for the 1953 water year. An increase 

of about 15 percent in dissolved solids and 8 percent in percent 

sodium was noted. The 1954 records revealed an increase in dissolved solids and percent sodium with approximately a 30 percent 

increase in flow.
18 QUALITY FOR IRRIGATION 1954

Humbotdt River basin. An increase in dissolved solids, specific conductance, and percent sodium over last year may have resulted 

from a decrease in runoff of approximately 28 percent.

PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER BASIN

Columbia River main stem. Although runoff of the Columbia River at 

International Boundary was about 25 percent higher in the water 

year 1954 than in 1953, the average salt concentration in tons per 

acre-foot remained the same as the previous year. Downstream 

at Grand Coulee Dam, Wash., the quality of river water changed 

very little from the preceding year.

Yakima River basin. Slight reductions in average SAR, and salt concentration occurred in the Yakima River at the Kiona, Wash, gaging station, 25 miles upstream from mouth. Increased flow past 

this station over that of 1953 resulted in an increased dissolved 

solids load of almost 25 percent.

SNAKE RIVER BASIN

Snake River Basin main stem. Runoff in the Snake River Basin above 

Clarkston, Washington was about 8. 5 percent below the 1953 water 

year. However, flow past the Heise station was about 7. 5 percent 

greater than last year with little or no difference in mineral concentration. The decrease of about 8. 5 percent in flow accounted 

for only 1 percent increase in dissolved solids and specific conductance at the King Hill station. The specific conductance and 

dissolved solids content at the Clarkston station decreased about 

4. 5 percent with the decrease in flow. This apparently abnormal 

condition may have been due to the inflow of the slightly mineralized water of Clearwater Creek which had a mean discharge of 

2, 000 cubic feet per second greater than in 1953.

Boise River basin. Runoff in this basin was about 22 percent below 

the 1953 water year. The yearly weighted average dissolved solids 

concentration of the Boise River at Notus, Idaho was 0.30 ton per 

acre foot. The average percent sodium was the same as the 1953 

water year.

PACIFIC SLOPE BASINS IN OREGON AND LOWER COLUMBIA RIVER BASIN

Deschutes River basin. Operation of the Deschutes River sampling 

station at Moody near Biggs, Oreg. begun in December 1952 was 

discontinued February 1954 because of construction of The Dalles 

dam on the Columbia River.
CRITERIA OF WATER QUALITY 1 9

Columbia Rivet main stem. Some slight change in properties of Columbia River water near Rufus, Oreg., was observed in 1954 because of increased flow. Average salt concentration decreased 

from 0.16 to 0.14 tons per acre-foot and SARvalue from 0.5 to 0.3 

compared with 1953.

Willamette River basin. Salinity and alkali hazards in the Willamette 

River water remained very low in 1954. At Salem, Oregon the 

river water had a weighted average specific conductance of 54. 2 

micromhos and a SAR value of 0.4; about average for the period of 

record.

Rogue River basin. Rogue River water sampled at Grants Pass, 

Oregon showed no significant change from data reported in 1953. 

Salinity and alkali hazards were low and weighted average specific 

conductance was 92. 7 micromhos.

CRITERIA OF WATER QUALITY

Many different classifications of water for irrigation appear in 

the literature; however, most of the development in this field has 

been made in the last 30 years. Scofield and Headley (1921) were 

among the first important contributors to water-quality criteria; 

they pointed out the hazards from the use of high-sodium water. 

A brief historical resume' of these early developments is given in 

Water-Supply Paper 1264, the first of this series of reports.

Although the above classifications have relied principally on 

specific conductance as the criterion for total salt concentrations, 

investigators generally place emphasis on the composition of the 

water, as indicated by the analysis of dissolved constituents in 

equivalents per million. For example, Eaton (1950) discusses 

precipitation of calcium and magnesium carbonate and its effects 

on the sodium percentage in the soil solution. Baton's suggestion 

of "residual sodium carbonate" in irrigation waters as related to 

the base exchange of the soil has assumed added importance in 

soil permeability studies.

Thorne and Thorne (1951) in developing a system for classifying 

Utah waters designated categories by a series of two numbers: 

1A, IB, 1C, IE, to increasing concentrations of dissolved solids 

and the letters to increasing proportions of sodium in the water 

or to different sodium percentages. In the number classification, 

Class 1 water in which specific conductance ranges from 0 to 750 

micromhos, can be used safely on all soils. Class 5 waters, those 

having specific conductance greater than 5, 000 micromhos, are 

generally unsuitable and should be used for irrigation only under 

special situations.
20 QUALITY FOR IRRIGATION, 1954

The United States Salinity Laboratory Staff (1954) recently released a classification that incorporates many of the desirable 

features of the early classifications together with more recent 

developments. Empirical equations are used in developing a diagram for the classification of irrigation waters. Although the 

classification embodies both research and field observations, it 

is tentative and should be used for general guidance only.

A. Salinity hazard.

Waters are divided into four classes: low salinity, medium salinity, high salinity, and very high salinity, the dividing 

points between classes being 250, 750, and 2,250 micromhos per 

centimeter. They range from water that can be used for irrigation 

of most crops on most soils to that which is not suitable for irrigation under ordinary conditions.

B. Sodium hazard.

The Salinity Laboratory introduces the term sodiumadsorption-ratio (SAR), which is the relative proportion of sodium 

to other cations in an irrigation water and is defined by the 

equation:

SAR= Na+

Ca+++Mg++

where the concentrations of the constituents are expressed in milliequivalents per liter (or equivalents per million for most irrigation waters). It is reported that the sodium-adsorption-ratio is 

more significant for interpreting water quality than percent sodium by the soil.

Waters are divided into four classes with respect to sodium 

hazard, the dividing points being at SAR values of 10, 18, and 26. 

They range from low-sodium water that can be used for irrigation 

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

unsatisfactory for irrigation.

C. Boron hazard.

In assessing water quality on the basis of boron only, the 

classification uses the limits proposed by Scofield (1936). This 

grouping involves the ranges for sensitive, semitolerant, and 

tolerant crops, with respect to boron, for each of five classes.
QUALITY FOR IRRIGATION, 1954 21

D. Bicarbonate ion hazard.

The effect of bicarbonate ion concentration on water quality is expressed in terms of "residual sodium carbonate" (RSC) 

which is defined by the equation:

RSC = (HCO3 ~ + CO3 = ) - (Ca++ + Mg++ )

Then in appraising quality of irrigation water with the above 

classifications, the Salinity Laboratory Staff recommends that 

first consideration be given to salinity and alkali hazards, then to 

independent characteristics, boron or toxic elements, any one of 

which may change the quality rating. Factors such as drainage 

and management practices, largely determine the effectiveness of 

irrigation activity.

SELECTED REFERENCES

Eaton, F. M. , 1935, Boron in soils and irrigation waters and its 

effect on plants: U. S. Dept. Agriculture Tech, Bull. 448,. 

p. 1-133.

 1942, Toxicity and accumulation of chloride and sulfate 

salts in plants: Jour. Agriculture Res. 64, p. 357 399.

 1950, Significance of carbonates in irrigation water: Soil

Science v. 69, p. 123-133. 

Federal Interagency River Basin Committee, 1950, Minutes of

the fifty-sixth meeting, Subcommittee on Hydrology (mimeographed). 

International Boundary and Water Commission, 1953, Flow of the

Rio Grande and Related Data: Department of State Water Bull.

no. 24, p. 1-94; 1954, Flow of the Rio Grande and Related

Data: Department of State Water Bull. no. 23, p. 1-102. 

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

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

707, p. 8-9. 

President's Water Resources Policy Commission, 1950. A water

policy for the American people: v. 1: General Report, p. 152 

153. 

Scofield, C. S. , and Headley, F. B. , 1921, Quality of irrigation

water in relation to land reclamation: Jour. Agriculture Res.

21, p. 265-278. 

Scofield, C. S. , 1936, The salinity of irrigation water: Smithsonian Institution Ann. Rpt. , 1935, p. 275-287.

 1949, Trends of irrigation development in the United States; 

Symposium, Am. Chem. Soc. , p. 1 11 (mimeographed).
22 QUALITY FOR IRRIGATION, 1954

Straus, Michael, 1952, Use of water for irrigation: Interior and 

Insular Affairs Committee, U. S. House of Representatives; 

v. 2, The physical basis of water supply and its principal uses.

Thorne, J. P., and Thorne, D. W., 1951, Irrigation waters of 

Utah: Utah Agriculture Expt. Sta. Bull. 349.

U. S. Geol. Survey, 1954, Quality of surface waters for irrigation, Western United States, 1951: U. S. Geol. Survey WaterSupply Paper 1264, p. 1-153; 1955, Quality of surface waters 

for irrigation, Western United States, 1952: U. S. Geol. Survey 

Water-Supply Paper 1362, p. 1-179; 1957, Quality of surface 

waters for irrigation, Western United States, 1953: U. S. Geol. 

Survey Water-Supply Paper 1380, p. 1-203.

U. S. Salinity Laboratory Staff, 1954, Diagnosis and improvement of saline and alkali soils; U. S. Dept. Agriculture Handbook 60, p. 1-160.

Wilcox, L. V. , 1948, The quality of water for irrigation use: 

U. S. Dept. Agriculture Tech. Bull. 962, p. 1-40.
PART 5. HUDSON BAY AND UPPER MISSISSIPPI RIVER 

RED RIVER OF THE NORTH BASIN 

SHEYENNE RIVER NEAR WARWICK, N. DAK.

LOCATION. At gaging station at highway bridge, 3.3 miles south of Warwick, Benson Coun

DRAINAGE AREA. 2,100 square miles, approximately.

Chemical analyses: January 1951 to September 1954.

RECORDS AVAILABLE. Water temperatures: January 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 1,220 micromhos Aug. 26, 27; 

Percent sodium: Maximum, 58 July 26 to Aug. 7, Aug. 28 to Sept. 30; minimum, 20 Oct. 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 1,220 micromhos Aug. 26-27, 

Percent sodium: Maximum, 58 July 26 to Aug. 7, Aug. 28 to Sept. 30, 1954; minimum, 

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily samp

Records of specific conductance of daily samples available in regional office at Lin

October 1953 to September 1954 given in WSP 1338.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-31, 1953 . 

Nov. 1-30 ......

Dec. 1-28.......

Dec. 29-Jan 16, 

1954 .........

Jan. 17-26 .....

Jan. 27 -Feb. 2L 

Feb. 22-28 .... 

Mar. 1-4 ......

Mar. 5-31 .....

Apr. 1-30 ......

May 1-23 ......

May 24 -June 8 . .

June 14-17 .....

June 18-20 .... 

June 21-23 .....

Runoff 

(acrefeet)

95 

169 

188

143 

63

272 

1,700 

1,140 

3,720 

3,820

1,410 

1,220 

3,340 

3,660 

4,710 

3.000

Silica 

(SiOJ 

PPm

19

15 

16

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

4.38 

4.58 

3. 04 2. 28

5.72 

5.42

6.14 

4.04 

2.04 

1.65 | 1.17 

2.90

4.30 

2.74 2.40 

4.26 

3.50 

3.16 

3.34

Sodium 

(Na)

1.09 

2.48 

3.70

2.87 

2.30

2.30 

3.13 

1.61 

2.65 

2.17

2.87 

3.65 

3.39 

2.83 

3.00 

3.04

Potassium 

(K)

0.22

.20 

.20

Bicarbonate 

(HCO,)

4.39 

5.54 

7.01

6.75 

6.06

6.65 

5.06 

2.51 

3.65 

3.44

5.00 

a6.20 

5.11 

4.15 

4.08 

4.51

Sulfate 

(SOJ

1.00 

1.39 

1.73

1.81 

1.52

1.56 

1.94 

1.06 

1.71 

1.46

1.96 

2.25 

2.21 

2.00 

2.02 

1.83

Chloride 

(Cl)

0.34

.23

.45 

.37 

.24 

.18 

.17

Fluoride 

(F)

0.03

.01 

.04

Nitrate 

(NO,)

0.03

.04 

.03

B

a Includes 0; 20 equivalents per million of carbonate (CO,).
RED RIVER OF THE NORTH BASIN Continued 

SHEYENNE RIVER NEAR WARWICK, N. DAK. Continue

Chemical analyses, water year October 1953 to September 1954--

Date 

of 

collection

June 24 -July 1, 

1954 ..........

July 8-12 .......

July 13-18 ......

July 19-25 ......

July 26-Aug. 7. . . 

Aug. 8-25.......

Aug. 26-27......

Aug. 28-Sept. 30 

Total or 

weighted average &

Runoff 

(acrefeet)

4,410 

1,730 

2,800 

1,820 

1,760 

1,200

1,300 

1,820 

161 

2,630

48,280

Silica 

(SiO,) 

ppm

20

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

3.68 

4.64 

3.28 

3.70 

4.08 

3.76

3.96 

4.12 

7.08 

2. 00 2. 52

3.68

Sodium 

(Na)

4.00 

6.04 

3.96 

4.57 

5.57 

4.83

5.44 

5.74 

5.87 

6.65

3.74

Potassium 

(K)

0.28

Bicarbonate 

(HCO,)

5.44 

7.10 

5.05 

5.95 

7.06 

6.29

7.16 

7.88 

7.24 

8.93

5.24

Sulfate 

(S0«)

2.10 

3.35 

1.94 

2.02 

2.35 

1.98

1.89 

1.77 

1.98 

2.06

1.98

Chloride 

(Cl)

0.24 

.48 

.28 

.28 

.37 

.34

.34 

.37 

3.95 

.48

0.28

Fluoride 

(F)

0.03

Nitrate 

(NO,)

0.01

B

0

b Includes estimates where data are missing. Represents 100 percent of runoff for water year October 1953 to S
PART 6 MISSOURI RIVER BASIN

MISSOURI RIVER MAIN STEM 

MISSOURI RIVER NEAR WILLISTON, N. DAK.

LOCATION. At gaging station at Lewis and Clark Highway bridge, 5 miles southwest of Wi

downstream from YeHowstone River, and at mile 1,650.2. 

DRAINAGE AREA. 164,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1954.

Water temperatures: May 1951 to September 1954.

EXTREMES, 1953-54. Specific conductance: Maximum daily, 908 micromhos Feb. 3,

Percent sodium: Maximum, 40 May 22, June 2-27; minimum, 32 May 23 to June 1.

EXTREMES, 1950-54. Specific conductance: Maximum daily, 908 micromhos Feb. 3,

Percent sodium: Maximum, 41 May 26 to June 9, 1953; minimum, 31 Jan. 30, 1952. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily sampl

discharge. Records of specific conductance of daily samples available in regional o

for water year October 1953 to September 1954 given in WSP 1339.

Chemical analyses, water year October 1953 to Septemb

5; mini

5, 1954

Date 

of 

collection

Oct. 1-31, 1953 . . . 

Nov. 1-21 ........

Nov. 22-Dec. 13... 

Jan. 1-13, 1954.... 

Jan. 14-31........

Feb. 1-9. .........

Feb. 10-Mar. 3 ... 

Apr. 10-30 .......

May 1-12 .........

May 13-16 ........

May 17-21 ........

Mav 22 ...........

Runoff 

(acrefeet)

2,040,000 

911,600 

691,800 

274,700 

298, 500

235,000 

684, 500 

987,800 

359,400 

130,100 

238,400 

54.740

Silica 

(Si02) 

ppm

14 

11

Equivalents per million

Calcium 

(Ca)

4 

5 

3.29 

5 

5

6 

4 

2.50

3 

3 

4

Magnesium 

(Mg)

52 

02 

2.01 

60 

60

04 

58 

1.52 

88 

18 

66 

76

Sodium 

(Na)

2.57 

2.78 

3.04 

3.09 

3.00

3.26 

2.65 

2.70 

3.17 

1.65 

2.00 

3.13

Potassium 

(K)

0.10 

.14

Bicarbonate 

(HCOS)

3.08 

3.26 

3.47 

3.59 

3.62

3.80 

3.03 

2.88 

3.29 

2.26 

2.57 

3.28

Sulfate 

(SCO

3.85 

4.29 

4.68 

4.85 

4.62

5.20 

4.04 

3.73 

4.54 

2.42 

2.87 

4.29

Chloride 

(Cl)

0.31 

.23

Fluoride 

(F)

0.04 

.02

Nitrate 

(NO,)

0.01 

.03

B
MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER NEAR WILLISTON, N. DAK. Conti

Chemical analyses, water year October 1953 to September 1954

Date 

of 

collection

May 23 June 1, 1954. 

June 2-27 .........

June 28-July 11.... 

July 12 ...........

July 13-31 ........

Aug. 1-31 ........

Sept. 1-30 ........

Total or 

weighted average a 

Total or 

weighted average b

Runoff 

(acrefeet)

687,700 

1,257,000 

978,800 

59, 900 

1,093,000

2,139,000 

1,912,000

15,030,000

16,570,000

Silica 

(Si02) 

ppm

15 

14

__

Equivalents per million

Calcium 

(Ca)

2. 

2.00 

2. 

4. 

3.

4. 

2.59

Magnesium 

(Mg)

92 

1.16 

54 

16 

28

32 

1.99

4.18

4.30

Sodium 

(Na)

1.39 

2.17 

1.39 

2.26 

1.83

2.39 

2.48

2.44

2.52

Potassium 

(K)

0.09 

.11

_

Bicarbonate 

(HC03)

2.29 

2.41 

2.00 

2.92 

2.34

2.90 

3.08

2.87

2.93

Sulfate 

(S0<)

1.94 

2.79 

1.83 

3.39 

2.66

3.66 

3.87

3.54

3.66

Chloride 

(Cl)

0.20 

.27

_.

Fluoride 

(F)

0.02 

.04

Nitrate 

(NOS)

0.02 

.01

..

Bo

(

p

0

a Represents 91 percent of runoff for water year October 1953 to September 1954.

b Includes estimated data for missing periods. Represents 100 percent of runoff for water year October 1953 to S
MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER AT PIERRE, S. DAK.

LOCATION. At bridge on U. S. Highway 14 at Pierre, Hughes County, 0.3 mile upstream fro

from Bad River.

DRAINAGE AREA. 243,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 1,040 micromhos Jan. 23; minim

Percent sodium: Maximum, 44 May 26 to June 4; minimum, 36 Oct. 1-31. 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 1,040 micromhos Jan. 23, 1954; 

Percent sodium: Maximum, 45 May 1-3, 1953; minimum, 27 Jan. 24-27, 1952. 

REMARKS.--Values reported for dissolved solids are residue on evaporation. Daily sample

discharge. Records of specific conductance of daily samples available in regional of

for water year October 1953 to September 1954 given in WSP 1339.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-31, 1953 . . . 

Nov. 1-30. ........

Dec. 1-31 ........

Jan. 1-Feb. 2,1954 

Feb. 3-Mar. 2 ....

Mar. 3-Apr. 5 .... 

Apr. 6-8 .........

Apr. 9-12 ........

Apr. 13-30 .......

May 1-25 .........

May 26-30 ........

May 31 -June 4 .... 

June 5-13 .........

June 14-July 9 .... 

July 10-20 ........

July 21-28 ........

Runoff 

(acrefeet)

2,036,000 

1,470,000 

605,000 

565, 500 

655, 500

1,235,000 

88,260 

208,900 

980,600 

1,253,000 

263,600

271,700 

505, 200 

844, 600 

579,200 

556.400

Silica 

(SiO,) 

ppm

11

13 

13

Equivalents per million

Calcium 

(Ca)

4 

2.99 

5 

6 

5

2.84 

5 

4 

4 

2.35 

4

4 

4 

3 

3 

3

Magnesium 

(Mg)

54 

1.81 

78 

76 

26

1.72 

18 

90 

16 

1.43 

98

44 

00 

36 

28 

06

Sodium 

(Na)

2.52 

2.91 

3.48 

4.09 

3.13

2.96 

3.57 

3.39 

3.04 

2.78 

3.91

3.61 

3.00 

2.57 

2.57 

2.17

Potassium 

(K)

0.09

.12 

.13

Bicarbonate 

(HCOs)

3.03 

3.21 

3.82 

4.42 

3.51

3.13 

3.36 

3.20 

3.02 

2.82 

3.23

3.28 

2.90 

2.61 

2.56 

2.49

Sulfate 

(SOJ

3.85 

4.27 

5.16 

6.04 

4.66

4.16 

5.16 

4.89 

4.06 

3.60 

5.48

4.60 

4.02 

3.16 

3.14 

2.66

Chloride 

(Cl)

0.27

.27

.23

.28 

.23 

.20 

.21 

.18

Fluoride 

(F)

0.04

.02 

.03

Nitrate 

(NO,)

0.02

.02 

.02

B

(

p

0
MISSOURI RIVER MAIN STEM Cont inued

MISSOURI RIVER AT PIERRE, S. DAK. Continu

Chemical analyses, water year October 1953 to September 19 54 

Date 

of 

collection

July29-Aug. 17, 

1954 ............

Aug. 18-24 .......

Aug. 25-31 .......

Sept. 1-30 ........

Total or 

weighted average a

Runoff 

(acrefeet)

1,548,000 

546,200 

540,300 

2,329,000

17,080,000

Silica 

(SiO,) 

ppm

15

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

2.90 

3.64 

4.04 

2.69 1.63

4.26

Sodium 

(Na)

1.87 

2.17 

2.39 

2.74

2.78

Potassium 

<K)

0.12

Bicarbonate 

(HCOS)

2.33 

2.65 

2.79 

3.02

3.00

Sulfate 

(S0<)

2.35 

3.08 

3.50 

3.75

3.83

Chloride 

(Cl)

0.16 

.20

.24

Fluoride 

(F)

0.04

Nitrate 

(NOS)

0.02

--

Bo

(

pp

0

a Represents 100 percent of runoff for water year October 1953 to September 1954.
MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER AT NEBRASKA CITY, NEBR

LOCATION. At gaging station at Waubonsie Highway bridge at Nebraska City Otoe County.

DRAINAGE AREA. 414,400 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: January 1951 to September 1954.

Water temperatures: May 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 895 micromhos Jan. 22; minim

Percent sodium: Maximum, 42 Aug. 1-10; minimum, 23 June 26-28. 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 936 micromhos Jan. 6, 1953; m

Percent sodium: Maximum, 43 June 20-25, 1953; minimum, 18 Mar. 27-29, 1951. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily samp

discharge. Records of specific conductance of daily samples available in regional 

for water year October 1953 to September 1954 given in WSP 1340.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-31, 1953 . . . 

Nov. 1-30. .......

Dec. 1-23 ........

Dec. 24-Jan. 13, 

1954 ............

Jan. 14-Feb. 9 .... 

Feb. 10-28. .......

Mar. 1-31 ........

Apr. 1-30. ........

May 1-2 ..........

May 3-6 ..........

May 7-June 1 .....

June 2-5 ..........

June 6-19. ........

June 20-22 ........

June 23-25 ........

June 26-28 ........

Runoff 

(acrefeet)

2,147,000 

1,466,000 

990,100

557,300 

639, 500

1,054,000 

2,087,000 

2,102,000 

161,100 

367,900

1,854,000 

368,900 

1,148,000 

559,300 

479,400 

346. 500

Silica 

(SiO,) 

ppm

18 

19

14

Equivalents per million

Calcium 

(Ca)

4 

4 

3.14

5 

5

4 

3.39 

5 

4 

4

4 

4 

4 

2.79 

3 

3

Magnesium 

(Mg)

56 

56 

1.52

20 

48

34 

1.69 

04 

58 

44

64 

26 

16 

1.19 

18 

44

Sodium 

(Na)

2.65 

2.44 

2.48

2.74 

3.09

2.09 

2.48 

2.52 

2.91 

2.48

2.78 

2.17 

2.30 

1.78 

1.00 

1.00

Potassium 

(K)

0.13 

.16

.17

Bicarbonate 

(HCO,)

3.08 

3.16 

3.24

3.70 

3.79

3.11 

3.39 

3.43 

3.10 

3.11

3.18 

3.20 

2.95 

2.98 

2.43 

2.49

Sulfate 

(S0<)

3.79 

3.37 

3.44

3.48 

3.91

2.83 

3.71 

3.71 

3.79 

3.35

3.83 

2.85 

3.08 

2.56 

1.69 

1.77

Chloride 

(Cl)

0.56 

.51

.25

Fluoride 

(F)

0.03 

.03

.03

Nitrate 

(NO,)

0.05 

.07

.08

B
MISSOURI RIVER MAIN STEM Continued

MISSOURI RIVER AT NEBRASKA CITY, NEBR. Cont

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

June 29- July 1, 

1954 ............

July 2-31 .........

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

Aug. 11-21........

Aug. 22-25. .......

Aug. 26-Sept. 14 . . 

Sept. 15-30 .......

Total or 

weighted average a

Runoff 

(acrefeet)

262,600 

2,070,000 

735,900 

742,400 

337,600

1,331,000 

1,092,000

22,900,000

Silica 

(Si02) 

ppm

14

-

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

4.52 

4.82 

4.04 

3.72 

3.40

2.35 1 1.13 

3.80

4 46

Sodium 

(Na)

1.48 

3.00 

2.91 

2.48 

1.87

1.96 

2.09

2.44

Potassium 

(K)

0.14

-

Bicarbonate 

(HCOS)

3.06 

3.15 

2.88 

2.85 

2.74

2.69 

2.79

3.11

Sulfate 

(S0<)

2.64 

4.25 

3.62 

3.04 

2.23

2.52 

2.73

3.37

Chloride 

(Cl)

0.42

-

Fluoride 

(F)

0.03

-

Nitrate 

(NO,)

0.01

-

B

p

a Represents 100 percent of runoff for water year October 1953 to September 1954.
YELLOWSTONE RIVER BASIN

YELLOWSTONE RIVER AT BILLINGS, MONT.

LOCATION.--At gaging station at bridge on U. S. Highway 87, 1 mile northeast of Billings

from Pryor Creek.

DRAINAGE AREA. 11,870 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 964 micromhos Jan. 20; minimum 

Percent sodium: Maximum, 32 Oct. 1-21, July 22 to Sept. 3; minimum, 21 May 11-23. 

EXTREMES, 1950-54. Specific conductance: Maximum daily, 1,210 micromhos Feb. 2, 1951; 

Percent sodium: Maximum, 37 Dec. 1, 1950; minimum, 16 May 20, 1951. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily sample

discharge. Records of specific conductance of daily samples available in regional of

for water year October 1953 to September 1954 given in WSP 1339.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-21, 1953. .. 

Oct. 22-31........

Nov. 1-30.........

Dec. 1-31.........

Jan. 1-17, 1954 . . . 

Jan. 18-21........

Jan. 22-31........

Feb. 1-28. ........

Mar. 1-31 ........

Apr. 1-15. ........

Apr. 16-May 10 ... 

May 11-16 ........

Mav 17-20 ........

Runoff 

(acrefeet)

106,700 

62,980 

185,900 

170,100 

70,650 

11,210 

38,880

149,000 

138, 500 

89,180 

199, 800 

160,700 

151.700

Silica 

(Si02) 

ppm

18 

16

Equivalents per million

Calcium 

(Ca)

3 

3 

3 

2.35 

3 

6 

4

3 

2.25 

3 

2 

1 

1

Magnesium 

(Mg)

72 

92 

64 

1.37 

90 

32 

06

54 

1.41 

58 

72 

62 

22

Sodium 

(Na)

1.74 

1.78 

1.57 

1.52 

1.61 

2.57 

1.52

1.39 

1.57 

1.57 

1.09 

.43 

.33

Potassium 

(K)

0.09 

.10

Bicarbonate 

(HCO,)

2.88 

3.05 

2.82 

2.87 

2.92 

4.18 

3.06

2.64 

2.74 

2.82 

2.29 

1.46 

1.13

Sulfate 

(SOJ

2.35 

2.46 

2.23 

2.08 

2.33 

4.31 

2.27

2.06 

2.23 

2.19 

1.39 

.50 

.35

Chloride 

(Cl)

0.25 

.27

Fluoride 

(F)

0.03 

.03

Nitrate 

(NO,)

0.04 

.03

B

p

0
YELLOWSTONE RIVER BASIN Continued 

YELLOWSTONE RIVER AT BILLINGS, MONT. Con

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

May 21-23, 1954 .. 

May 24-27 ........

May 28-June 16. ... 

June 17-22 ........

June 23-29. .......

June 30 -July 9. ....

July 10-21 ........

July 22-26 ........

July 27-31 ........

Aug. 1-17.........

Aug. 18-Sept. 3 ... 

Sept. 4-30. ........

Total or 

weighted average a

Runoff 

(acrefeet)

183,700 

165,600 

508, 000 

194,000 

456,600

428, 600 

399,900 

109, 100 

81,940 

207,000 

131,000 

174,400

4,575,000

Silica 

(SiOj) 

ppm

13 

16

Equivalents per million

Cal- Magnecium slum 

(Ca) (Mg)

1.04 

0.70 0.42 

1.36 

1.22 

1.10

1.12 

1.24 

1.56 

1.84 

2.12 

2.64 

1.90 1.30

2.02

Sodium 

(Na)

0.27 

.36 

.57 

.48 

.32

.43 

.52 

.74 

.87 

1.00 

1.26 

1.48

0.83

Potassium 

(K)

0.05 

.08

Bicarbonate 

(HCOj)

0.98 

1.02 

1.29 

1.18 

1.08

1.07 

1.21 

1.47 

1.70 

1.92 

2.26 

2.64

1.72

Sulfate 

(S0«)

0.31 

.37 

.48 

.42 

.25

.35 

.44 

.67 

.83 

1.06 

1.54 

1.98

0.98

Chloride 

(Cl)

0.07 

.23

Fluoride 

(F)

0.02

I .03

Nitrate 

(NO,)

0.02 

.02

a Represents 100 percent of rvmoff for water year October 1953 to September 1954.
YELLOWSTONE RIVER BASIN Continued

YELLOWSTONE RIVER NEAR SIDNEY, MONT.

LOCATION.--At bridge on State Highway 23, 2 miles south of Sidney, Richland County, 4| 

downstream from Fox Creek, and 30 miles upstream from mouth. 

DRAINAGE AREA. 69,450 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1950 to September 1954.

Water temperatures: January 1951 to September 1954. 

EXTREMES, 1953-54. Specif ic conductance: Maximum daily, 1,810 micromhos Jan. 2; minim

Percent sodium: Maximum, 46 Oct. 22-31; minimum, 28 May 24-31. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 2,780 micromhos Jan. 14, 1951

Percent sodium: Maximum, 48 May 1-30, 1953; minimum, 26 June 11-13, 1952. 

REMARKS.--Values reported for dissolved solids are residue on evaporation unless otherw

analyses composited by discharge. Records of specific conductance of daily samples 

No appreciable inflow between gaging station and sampling station. Discharge record

year October 1953 to September 1954 given in WSP 1339.

Chemical analyses, water vear October 1953 to Seoten

Date 

of 

collection

Oct. 1-21, 1953 . . . 

Oct. 22-31 .......

Nov. 1-30.........

Dec. 1-Jan. 1,1954. 

Jan. 2-3... .......

Jan. 4-19.........

Jan. 20- Feb. 3 .... 

Feb. 4-28. ........

Mar. 1-11 ........

Mar. 12-22 .......

Mar. 23-Apr. 4 ... 

Apr. 5-6 .........

Apr. 7-16.........

Apr. 17 -May 12 ...

Runoff 

(acrefeet)

183,000 

155,900 

401,300 

353,300 

19, 830 

126,900

79, 340 

355,000 

94,810 

128,900 

201,200

71,920 

126,700 

379, 200

Silica 

(Si02) 

ppm

15 

11

Equivalents per million

Calcium 

(Ca)

6 

5 

6 

4.24 

12 

6

8 

5 

6 

3.69 

6

5 

6 

5

Magnesium 

(Mg)

00 

86 

18 

2.50 

98 

94

34 

72 

40 

2.59 

82

64 

32 

42

Sodium 

(Na)

4.39 

4.91 

3.83 

4.04 

8.13 

4.00

4.96 

3.30 

3.65 

3.74 

4.30

3.87 

4.48 

3.35

Potassium 

<K)

0.12 

.11

Bicarbonate 

(HCO,)

3.51 

3.65 

3.70 

4.03 

7.59 

4.11

4.77 

3.31 

3.49 

3.46 

3.59

3.23 

3.54 

3.23

Sulfate 

(S0<)

6.45 

6.77 

5.93 

6.31 

12.55 

6.31

7.97 

5.31 

6.10 

6.10 

7.18

5.89 

6.83 

5.41

Chloride 

(Cl)

0.42 

.48

Fluoride 

(F)

0.03 

.03

Nitrate 

(NO,)

0.03 

.04

fib

B

p

a Sum of determined constituents.
YELLOWSTONE RIVER BASIN Continued

YELLOWSTONE RIVER NEAR SIDNEY, MONT. Cont

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

May 13-15, 1954. . . 

May 16-23 ........

May 24-31 ........

June 8 ...........

July 2-21 .........

July 22-27 ........

July 28-Aug. 7. ....

Aug. 8-20 ........

Aug. 21-31. .......

Sept. 1-6 .........

Sept. 7-30 ........

Total or 

weighted average t

Runoff 

(acrefeet)

71,210 

346,500 

452, 800

245,200 

29, 950 

637,700 

359,000 

912,000 

175,100

192, 800 

231,000 

126,600 

43,970 

257,600

6,759,000

Silica

(sicg

ppm

18 

14

__

Equivalents per million

Calcium 

(Ca)

4 

2 

2

,

3.

1.75 

1.55 

1.50 

1.85

2.15 

2.84 

4. 

4 

2.94

4

Magnesium 

(Mg)

40 

80 

46

.

26 

0.85 

.63 

.68 

.91

1.21 

1.52 

74 

74 

2.18

24

Sodium 

(Na)

2.65 

1.39 

.96

1.91 

2.17 

1.52 

.96 

1.17 

1.65

2.30 

3.09 

3.30 

3.78 

4.17

2.61

Potassium 

(K)

0.09 

.12

_

Bicarbonate 

(HCO,)

2.87 

2.03 

1.97

2.10 

2.39 

1.97 

1.84 

1.77 

2.11

2.43 

2.97 

3.03 

2.97 

3.28

2.74

Sulfate

(scg

4.00 

2.06 

1.35

2.48 

2.81 

2.04 

1.19 

1.52 

2.23

3.14 

4.29 

4.83 

5.37 

5.79

3.89

Chloride 

(Cl)

0.17 

.10 

.13 

.18

.24 

.27

.34

_.

Fluoride 

(F)

0.02 

.03

_.

Nitrate

(Ncg

0.02 

.03

..

B

b Represents 100 percent of runoff for water year October 1953 to September 1954.
YELLOWS-TONE RIVER BASIN Continued

WIND RIVER BELOW BOYSEN DAM, WYO.

LOCATION.--At tailrace of power plant at Boysen Dam, 0.6 mile upstream from gaging sta

Fremont Count y.

DRAINAGE AREA. 7,741 square miles. 

RECORDS AVAILABLE. Chemical analyses: November 1953 to September 1954.

Water temperatures: December 1953 to September 1954. 

EXTREMES, November 1953 to September 1954.--Specific conductance: Maximum daily, 1,38

647 micromhos Aug. 18.

Percent sodium: Maximum, 51 June 18-19; minimum, 41 June 20 to Sept. 27. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in regional office at Lincoln, Nebr. Records of discharge for water year 

in WSP 1339.

Chemical analyses, November 1953 to September 

Date 

of 

collection

Nov. 24-30, 1953 .. 

Dec. 1-31 ........

Jan. 1-21, 1954 ... 

Jan. 22- Feb. 28... 

Mar. 1-31 ........

May 1-31 .........

June 1-17.... .....

June 18-19........

June 20- July 19. ...

Runoff 

(acrefeet)

15,710 

70, 100 

43,850 

29, 450 

21,890

61,060 

110,300 

52,700 

6,110 

80,090

Silica

(sicg

ppm

9.5 

8.7

9.9

Equivalents per million

Calcium 

(Ca)

4. 

3.04 

4. 

4. 

3.24

4. 

5. 

3.09 

6. 

4.

Magnesium 

(Mg)

46 

1.46 

74 

88 

1.76

96 

04 

1.63 

06 

50

Sodium 

(Na)

3.30 

3.35 

3.57 

3.70 

3.87

3.70 

3.74 

3.44 

6.39 

3.17

Potassium 

(K)

0.08

.08

.09

Bicarbonate

(Hccg

2.72 

2.74 

2.85

3.00

2.84 

2.87 

2.77

Sulfate 

(SOJ

4.79 

4.85 

5.08

5.52

4.79 

7.81 

4.60

Chloride 

(Cl)

0.37

.45

.45 

1.86

Fluoride 

(F)

0.02

.03

.02

Nitrate

(Ncg

0.01

.01

.01
YELLOWSTONE RIVER BASIN Continued

WIND RIVER BELOW BOYSEN DAM, WYO. Cont

Chemical analyses, November 1953 to September 1954

Date 

of 

collection

July 20-Aug. 25, 

1954 ............

Aug. 26-Sept. 27. . . 

Sept. 28 ..........

Sept. 29-30 .......

Total or 

weighted average3-

Total or 

weighted average0

Runoff 

(acrefeet)

112,100 

77,140 

2,380 

4,740

687,600

810,400

Silica 

(SiO-j) 

ppm

11

__

_-

Equivalents per million

Calcium 

(Ca)

4 

2.64 

4. 

4.

4.

4.

Magnesium 

(Mg)

14 

1.36 

72 

20

58

60

Sodium 

(Na)

2.87 

2.87 

4.00 

3.09

3.35

3.35

Potassium 

(K)

0.07

-_

Bicarbonate 

(HCO,)

2.59 

2.52 

2.75 

2.62

b2.77

2.77

Sulfate 

(S0<)

4.18 

4.12 

5.16 

4.35

b4.79

4.79

Chloride 

(Cl)

0.31 

.76

_.

Fluoride 

(F)

0.02

..

Nitrate 

(NO,)

0.01

a Represents 85 percent of runoff for water year October 1953 to September 1954.

b Includes estimates where data are missing.

c Includes estimated data for missing period. Represents 100 percent of runoff for water year October 1953 to 
YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT THERMOPOLIS, WYO.

LOCATION. At Broadway Street Bridge at Thermopolis, Hot Springs County, just downstre

a mile upstream from gaging station, which is upstream from principal hot springs i

DRAINAGE AREA. 8,080 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: April 1947 to January 1954 (discontinued). 

Water temperatures: April 1947 to January 1954.

Sediment records: March 1946 to September 1952. 

EXTREMES, 1947-49, 1951-54. Specific conductance: Maximum daily, 1,270 micromhos Apr

June 10, 1948.

Percent sodium: Maximum, 47 Aug. 1 to Sept. 30, 1948; minimum, 13 May 21-30, 1947.

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily samp

Records of specific conductance of daily samples available in regional office at Li

October 1953 to January 1954 given in WSP 1279.

Chemical analyses, October 1953 to January 195

Date 

of 

collection

Oct. 1-31, 1953 . . 

Nov. 1-30. .......

Dec. 1-31. .......

Jan. 1-21, 1954 ..

Runoff 

(acrefeet)

74, 420 

72,710 

73,710

Silica 

(Si02) 

ppm

9.0

Equivalents per million

Calcium 

(Ca)

4 

4 

3.24 

4

Magnesium 

(Mg)

56 

76 

1.66 

98

Sodium 

(Na)

3.09 

3.13 

3.13 

3.26

Potassium 

(K)

0.08

Bicarbonate 

(HCOS)

2.75 

2.87 

2.92 

2.97

Sulfate 

(S0«)

4.62 

4.68 

4.89 

4.91

Chloride 

(Cl)

0.39

Fluoride 

(F)

0.03

Nitrate 

(NO,)

0.01

B
YELLOWSTONE RIVER BASIN Continued

BIGHORN RIVER AT BIGHORN, MONT.

LOCATION. At bridge on U. S. Highways 10 and 12, 1 mile upstream from mouth, 1 mile sou

3£ miles downstream from gaging station near Custer. 

RECORDS AVAILABLE. Chemical analyses: February 1950 to September 1954.

Water temperatures: April 1949 to September 1951, August 1952 to September 1954. 

Sediment records: July 1947 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,390 micromhos Mar. 5, 6; min

Percent sodium: Maximum, 46 Aug. 15-31; minimum, 35 May 22-25. 

EXTREMES. 1951-54. Specific conductance: Maximum daily, 1,390 micromhos Mar. 5-6, 1954

June 20, 1951.

Percent sodium: Maximum, 49 May 23-28, 1952; minimum, 30 June 13-20, 1953.

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily sample

discharge. Records of specific conductance of daily samples available in regional of

inflow between gaging station and sampling point except small amounts of irrigation w

gaging station near Custer for water year October 1953 to September 1954 given in WSP 

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-20, 1953 . . . 

Oct. 21-Nov. 19 ... 

Nov. 20-Dec. 19. . . 

Dec. 20 -Jan. 16, 

1954. ...........

Jan. 23-Feb. 28... 

Mar. 1-31 ........

Apr. 1-30. ........

May 1-12 .........

May 13-21 ........

May 22-25 ........

May 26-31 ........

Runoff 

(acrefeet)

88, 260 

188, 600 

171,500

148, 900 

145, 400

116,200 

140,600 

86,400 

72,380 

42,310 

49. 670

Silica 

(Si02) 

ppm

13

13 

12

Equivalents per million

Calcium 

(Ca)

7 

7. 

4.99

7 

7

5.24 

7 

6 

5 

2.79 

5

Magnesium 

(Mg)

98 

52 

2.83

10 

84

3.56 

66 

26 

16 

1.45 

12

Sodium 

(Na)

5.96 

5.17 

4.96

4.35 

4.61

5.39 

5.17 

4.39 

2.96 

2.30 

3.17

Potassium 

(K)

0.11

.12 

.07

Bicarbonate 

(HCOj)

3.70 

3.79 

4.03

3.69 

3.83

4.24 

3.82 

3.39 

2.87 

2.49 

2.85

Sulfate 

(SOJ

9.74 

8.29 

8.12

7.35 

8.12

9.43 

8.70 

7.04 

5.16 

3.85 

5.20

Chloride 

(Cl)

0.48

.56 

.23

Fluoride 

(F)

0.03

.03 

.02

Nitrate 

(NOJ

0.04

.04 

.05

Bo

(

pp

0
June 1-26, 1954 . . . 

June 27-28 ........

June 29-30 ........

July 1-4 ..........

July 5-11 .........

July 12-19 ........

July 20-27 ........

July 28-Aug. 14 ... 

Aug. 15-31 .......

Sept. 1-30 ........

Total or 

weighted average*

Total or 

weighted average*'

192,900 

14,080

23,310

33,420

66,590

55, 850

50,300

76, 580 

61,750

120,400

1,945,000

1,958,000

--

--

13

__

5. 

5.

6.

5.

4.

4.

5.

6. 

6.

4.24

6.

6.

70 

56

36

46

08

38

52

62 

98

3.02

80

80

3.70 

3.48

4.09

3.48

2.70

3.09

4.13

5.26 

5.83

5.87

4.57

4.57

--

--

.11

_

3.13 

3.03

3.41

3.05

2.38

2.51

3.13

3.36 

3.28

3.49

3.49

3.49

6.00 

5.79

6.77

5.73

4.25

4.66

6.31

8.18 

9.06

9.22

7.47

7.47

--

-

.51

__

--

--

--

.03

_

--

-

.03

_

--

a Represents 99 percent of runoff for water year October 1953 to September 1954.

b Includes estimated data for missing periods. Represents 100 percent of runoff for water year October 1953 to 
YELLOWSTONE RIVER BASIN Continued

TONGUE RIVER AT MILES CITY, MONT.

LOCATION. At gaging station, 4 miles south of Miles City, Custer County, and 8 miles up

RECORDS AVAILABLE. Chemical analyses: January 1951 to September 1954.

Water temperatures: April 1949 to September 1954.

Sediment records: June 1946 to September 1951. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 2,260 micromhos July 29; minim

Percent sodium: Maximum, 65 Aug. 5-6; minimum, 24 Nov. 1 to Dec. 7. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 2,280 micromhos July 24, 1953; 

Percent sodium: Maximum, 65 May 10-11, 1953, Aug. 5-6, 1954; minimum, 19 June 8-11, 1

REMARKS. Values reported for dissolved solids are residue on evaporation unless otherwi

composited by discharge. Records of specific conductance of daily samples available 

discharge for water year October 1953 to September 1954 given in WSP 1339.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-6, 1953 .... 

Oct. 7-8..........

Oct. 9-21.........

Oct. 22-24........

Oct. 25-31 ........

Nov. 1-30 ........

Dec. 1-7 .........

Dec. 8-31 ........

Jan. 1-24, 1954 ... 

Jan. 25-Feb. 14...

Feb. 15-23 .......

Feb. 24 -Mar. 8 ... 

Mar. 9 ...........

Mar. 10-12 .......

Mar. 13-28 .......

Runoff 

(acrefeet)

107 

430 

4,020 

6,510 

4,480

22, 500 

4,640 

7,590 

8,340 

9,720

5,040 

5,410 

655 

1,750 

7.480

Silica 

(Si02) 

ppm

11 

9.4

Equivalents per million

Calcium 

(Ca)

8 

6 

5 

2 

5

6 

7 

4.39 

9 

8

6 

3.39

7 

6

7

Magnesium 

(Mg)

92 

62 

76 

04 

58

70 

34 

4.81 

28 

28

76 

3.77 

12 

70 

36

Sodium 

(Na)

9.13 

3.61 

2.30 

3.65 

2.13

2.09 

2.26 

3.26 

3.22 

2.87

2.35 

2.83 

2.52 

2.30 

2.83

Potassium 

(K)

0.13 

.12

Bicarbonate 

(HCOS)

7.87 

4.90 

4.10 

3.00 

3.92

4.34 

4.62 

5.87 

5.92 

5.42

4.47 

4.79 

4.67 

4.39 

4.80

Sulfate 

(SOJ

9.85 

5.31 

3.87 

2.71 

3.71

4.37 

4.95 

6.72 

6.41 

5.58

4.46 

5.10 

4.89 

4.56 

5.48

Chloride 

(Cl)

0.17 

.14

Fluoride 

(F)

0.02 

.02

Nitrate 

(NOJ

0.02 

.02

B

p

0

a Sum of determined constituents.
Mar.29-Apr.l7,1954 

Apr. 18-May 13 ... 

May 14-26 ........

May 27 -June 7 ....

June 19-26 ........

June 27 -July 10 .... 

July 11-16 ........

July 17-18 ........

July 19-25 ........

July 26-Aug. 4 .... 

Aug. 5-6 .

Aug. 7-15 ........

Aug. 16-17 .......

Aug. 18-19 .......

Aug. 20-22 .......

Aug. 23-24 .......

Aug. 27-Sept. 5 ... 

Sept. 6-8 .........

Sept. 9-30 ........

Total or 

weighted average0

7,950 

11,860 

5,780

15, 160 

6,880

2,090

3,060 

347

179

252

189 

144

608

3,910

2,270

327

109

214

161 

1,210

1,230

153, 600

--

17

-

--

__

--

15

7 

7 

5

1.80 

2.05

2.59

2.84 

3.44

3.04

3.19

4.34 

2.15

3.24

2.69

1.65

2.59

3.59

3.24

6 

2

3.39

6

60 

20 

48

1.48 

1.57

2

0Q

2.68

3

A(\

2 79

2 Q7

4.88

1

00

2

7A

1

X0

.67

1.89

3.35

2.68

62 

80

3.55

22

3.22 

2.61

I Qfi

1.43 

1.65

2.61

3.09 

5.35

7.17

9

*ti

13.26 

6.57

7

01

4.00

2 no,

4 f)4

6.00

1 VI

6.35 

3.78

5.17

2.61

.08

--

--

--

.16

_

4.93 

b4.51

3

AA

2.85 

3 no

3.98

4.31 

5.64

5

IW

6.34

8.59 

4 98

5.79

4 

CO

3.05

3.82

5.56

4 4Q

5.74 

3.36

5.70

4.38

5.93 

5.31 

3.46

1.77

2 97

3.56

4.27 

6.52

7.18

9.16

13.84 

5.06

7 

AC.

3.62

1.31

4.68

7 9Q

4.75

7.29

3 1Q

6.31

4.43

.04 

.06

.10

.13 

.16

.17

.17

.28

no

.14

.03

AQ

ftft

.17

.06

.14

_

-

.03

--

--

.02

_

.04

--

--

--

.02

_

b Includes 0.17 equivalent per million of carbonate (CO,).

c Represents 100 percent of runoff for water year October 1953 to September 1954.
YELLOWSTONE RIVER BASIN Continued

POWDER RIVER NEAR LOCATE, MONT.

LOCATION. At gaging station at bridge on U. S. Highway 12, at present site of Locate 

County, 3 miles upstream from Locate Creek, and 25 miles east of Miles City. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1954. 

Water temperatures: February 1951 to May 1954. 

Sediment records: March 1950 to September 1953. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 3,940 micromhos July 23; mini

Percent sodium: Maximum, 83 Oct. 22-24; minimum, 22 Aug. 12-13. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 3,940 micromhos July 23, 1954

Percent sodium: Maximum, 83 Oct. 22-24, 1953; minimum, 19 Aug. 6-7, 1953.

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

analysis composited by discharge. Records of specific conductance of daily samples 

Records of discharge for water year October 1953 to September 1954 given in WSP 1339

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Oct. 1-21, 1953.. 

Oct. 22-24 ......

Oct. 25-26 ......

Oct. 27-Nov. 20 . 

Nov. 21-Dec. 8..

Dee. 21-Jan. 8,1954 

Jan. 9^ Feb. 4 ... 

F«*b. 5-2,8.......

Mar. 1-3'i .... 

Apr. 1-25.......

Apr. 26-May4 .. 

May 5-17 .......

May 18-25 ......

May 26- June 2 ...

June 15-19 ......

Runoff 

(acrefeet)

370 

3,570 

280 

2,900 

4,210 

1,820

5,890 

5,940 

19,140 

28,150 

16,440

5,550 

11,230 

12,100 

6,380 

655 

3,360 

789

Silica 

(Si02) 

ppm

13 

10

16

Equivalents per million

Calcium 

(Ca)

13. 

1. 

6. 

14. 

15. 

13.62

17 

16 

10 

8.38 

13

11 

9 

6 

5 

5 

5.84 

13

Magnesium 

(Mg)

36 

24 

98 

96 

96 

I 8.10

24 

96 

56 

I 4.50 

40

86 

36 

96 

90 

30 

| 3.32 

12

Sodium 

(Na)

14.57 

5.96 

9.91 

10.57 

9.52 

14.18

8.96 

9.13 

5.91 

8.00 

10.18

7.57 

5.52 

3.39 

4.09 

6.78 

8.70 

11.31

Potassium 

(K)

0.25 

.16

.17

Bicarbonate 

(HCO,)

4.69 

2.95 

3.98 

4.46 

4.59 

6.51

5.80 

6.19 

3.65 

3.92 

3.70

3.69 

3.34 

2.84 

2.82 

3.34 

3.75 

4.31

Sulfate 

(SOJ

22.28 

4.18 

12.45 

19.99 

19.36 

27.69

18.84 

18.11 

11.55 

15.20 

18.53

14.37 

10.62 

7.04 

6.62 

8.08 

12.60 

18.53

Chloride 

(Cl)

1.04

.45 

1.02 

1.47 

2.14

1.58 

1.69 

1.13 

1.69 

1.55

1.38 

1.13 

.62 

.56 

.68 

1.21 

1.64

Fluoride 

(F)

0.05 

.03

.05

Nitrate 

(NOS)

0.07 

.07

.04

B

0

a Residue on evaporation at 180°C.
June 20, 1954 . . . 

June 21 -July 15 .. 

July 16-21. ......

July 22. .........

July 23-Aug. 5. . . 

Aug. 6-7........

Aug. 9-11.......

Aug. 12-13 .....

Aug. 14-16 .....

Aug. 17.........

Aug. 18.........

Aug. 19-25 .....

Aug. 26-31......

Sept. 1-4 .......

Sept. 5-6 .......

Sept. 7-8 .......

Sept. 9-12 ......

Sept. 13-30 .....

Total or weighted 

average0 ......

278 

1,180 

201

379

1,560 

448

2,740

3,010

1,160

1,390

3,530

3,370

3,010

647

121

8,400

2,040

718

558

163,500

--

--

17

-.

9.54 

13.16 

7.24

5.20

31.80 

10.12

13.68

12.00

12.00

16.88

7.76

15.44

14.68

5.60

3.88

7.00

7. 34 | 4. 00

11.52

9.18 

12.35 

11.83

7

C7

17.05 

12.44

5.48

3.87

7.65

7 01

8.78

3.61

4.00

7 99

11.70

4.74

4.17

6.09

11.22

7.17

-

--

0.21

..

b4.13 

4.26 

4.92

5 11

6.06 

3.90

6.85

3.23

A 90

3 

(=7

7.01

4.52

2.80

3.38

4.21

5.15

2.84

2.93

4.64

4.05

14.57 

19.88 

13.64

7.56

40.39 

17.38

12.60

12.49

90 1 5

16.03

18.42

6.77

11 74

19.05

21.65

5.52

4.75

9.89

17.38

13.62

1.16 

1.41 

.65

OK

2.99 

.96

.51

.25

1 97

90

1.24

.23

n

.62

.96

91

.06

.42

.85

1.13

-

--

0.03

..

-

--

O r>4

.01

..

0

a Residue on evaporation at 180°C.

b Includes 0. 20 equivalent per million of carbonate (COS).

c Includes estimates where data are missing. Represents 100 percent of runoff for water year October 1953 to Se
PLATTE RIVER BASIN

NORTH PLATTE RIVER BELOW GUERNSEY RESERVOIR, 

LOCATION. Three hundred feet downstream from gaging station, 1 mile northwest of Guerns

from Guernsey Dam.

DRAINAGE AREA.--16,200 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to August 1954.

Water temperatures: October 1951, April to September 1952, March to September 1953, M

Sediment records: April 1947 to June 1953. 

EXTREMES, May to August 1954.--Specific conductance: Minimum daily, 551 micromhos July 

Percent sodium: Maximum, 39 May 1-9; minimum, 28 Aug. 1-8. 

EXTREMES, 1951-53, 1954.--Specific conductance: Minimum daily, 429 micromhos May 21, 19

Percent sodium: Maximum, 39 Oct. 1-23, 1951, Apr. 17-24, 1952, May 1-9, 1954; minimum

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily sample

discharge. Records of specific conductance of daily samples available in regional of

discharge for water year October 1953 to September 1954 given in WSP 1340.

Chemical analyses, October 1953 to August 1954

Date 

of 

collection

Oct. 21, 1953 .....

Nov. 3 ...........

Dec. 2 ...........

Jan. 5, 1954 ......

Feb. 3 ...........

Mar. 2 ...........

Apr. 8 ...........

Apr. 20 ..........

May 1-6 ..........

May 7-9 ..........

May 10-12 ........

Runoff 

(acrefeet)

40 

42 

50 

50 

44

490 

40 

40 

4,440 

9,840 

13,130

Silica 

(SiO,) 

ppm

7.4 

10

Equivalents per million

Calcium 

(Ca)

5 

6 

3.99 

8 

4.49

7 

7 

7 

7 

7 

6

Magnesium 

(Mg)

82 

44 

2.35 

38 

2.71

38 

12 

36 

48 

00 

28

Sodium 

(Na)

2.87 

3.70 

3.48 

4.87 

4.17

4.48 

4.04 

4.35 

4.70 

4.44 

3.91

Potassium 

(K)

0.15 

.14

Bicarbonate 

(HCO,)

3.51 

3.44 

3.51 

4.34 

3.72

3.59 

3.64 

3.69 

3.56 

3.36 

3.08

Sulfate 

(S0«)

4.75 

6.25 

5.62 

7.91 

6.93

7.45 

6.83 

7.18 

7.77 

7.49 

6.31

Chloride 

(Cl)

0.68 

.82

Fluoride 

(F)

0.03 

.03

Nitrate 

(NO,)

0.05 

.07

B

(

P

0
May 13-17, 1954. . . May 18-24 ........

May 25-June 5 ....

June 13-14 .......

June 15-19. .......

June 20-July 4 .... 

July 5-14 .........

July 15-24 ........

July 25-31 ........

Aug. 1-8. .........

Aug. 9-19. ........

Aug. 20-31 .......

Total or 

weighted average b

Total or 

weighted average0

26, 460 

26,890

3,830 

8,360

4,380

15, 550

63, 330 

79,970

74, 860

46, 250

63, 290

70, 670

63, 110

575,200

692, 500

13

-

--

16

--

_

3.34 

4

4 

4

5

4

4 

4

4

4

2.64

4

4

4

4

2.04 

32

32 

54

12

64

18 

28

06

22

1.56

12

30

40

58

3.26 

1.83

1.78 

1.96

2.57

2.13

.70 

.78

.70

.70

.70

1.70

1.78

1.96

2.09

.13

--

--

.09

--

_

-.

2.87 

2.69

2.75 

2.85

a 3. 06

2.72

2.62 

2.67

2.65

2.64

2.62

2.72

2.70

2.77

5.31 

3.08

3.02 

3.35

4.33

3.68

3.02 

3.10

2.83

2.98

3.04

3.00

3.14

3.35

3.60

62

-

-

.34

--

_

.-

.02

-

--

.03

--

..

-.

.02

--

--

.02

a Includes 0. 27 equivalent per million of carbonate (CO,).

b Represents 82 percent of runoff for water year October 1953 to September 1954.

c Includes estimated data for missing periods. Represents 100 percent of runoff for water year October 1953 to 
PLATTE RIVER BASIN--Continued

PLATTE RIVER AT BRADY, NEBR.

LOCATION. At gaging stations at highway bridges, half a mile and 2£ miles, respectively

downstream from confluence of North Platte and South Platte Rivers. 

DRAINAGE AREA.--56,900 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: November 1950 to September 1954.

Water temperatures: March 1951 to September 1954.

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 872 micromhos Jan. 27 (chan. 

minimum, 32 Mar. 5-31. 

Maximum daily, 1,070 micromhos Feb. 19, 1953 

Percent sodium: Maximum, 45 July 1-30; 

EXTREMES, 1951-54.--Specific conductance:

Nov. 26, 1952 (chan. 1). 

Percent sodium: Maximum, 45 July 1-30, 1954; minimum, 22 Nov. 26, 1952.

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily sampl

channels composited by discharge. Composite periods normally identical to those of 

Nebr. Records of specific conductance of daily samples, taken at earh of the two ma

Lincoln, Nebr. Records of discharge for water year October 1953 to September 1954 g

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-31, 1953 .. 

Nov. 1-30........

Dec. 1-22 .......

Dec. 23-27 ......

Dec. 28-Jan. 18, 

1954 ...........

Jan. 19-Feb. 7 ... 

Feb. 8-28 .......

Mar. 1-3 ........

Mar. 5-31 .......

Apr. 1-30 .......

May 1-28 ........

May 29 -June 30 . .

Runoff 

(acrefeet)

7,420 

9,670 

6,940 

1,830

8,080

12,520 

8,560 

843 

434 

9,660

9,500 

10,200 

8,100

Silica 

(Si02) 

ppm

36

32 

36

Equivalents per million

Calcium 

(Ca)

3. 

3.

2.84 

4.

4.

4. 

3. 

4. 

5. 

2.79

3. 

3. 

2.54

Magnesium 

(Mg)

76 

72 

1.02 

62

02

20 

90 

22 

52 

1.11

86 

74 

1.10

Sodium 

(Na)

2.48 

2.17 

2.17 

2.70

2.09

2.30 

1.96 

2.13 

3.17 

1.91

2.13 

2.04 

2.30

Potassium 

(K)

0.22

.21 

.25

Bicarbonate 

(HC03)

3.36 

3.34 

3.46 

3.85

3.52

3.43 

3.34 

3.74 

a4.13 

3.34

3.28 

3.23 

3.15

Sulfate 

(S0«)

2.58 

2.27 

2.25 

3.04

2.35

2.77 

2.33 

2.37 

4.16 

2.17

2.42 

2.31 

2.50

Chloride 

(Cl)

0.39

.39 

.45

Fluoride 

(F)

0.03

.03 

.03

Nitrate 

(N08)

0.03

.03 

.01

B

a Includes 0.33 equivalent per million of carbonate (CO3 ).
July 1-30, 1954... 

July 31 -Aug. 19 .. 

Aug. 20-31...... .

Sept. 1-30 .......

Total or 

weighted average"

63, 670 

26, 190 

2,530

6,960

193, 100

-

39

_

4.02 

3.84 

3.72

2.45 | 1.25

3.92

3.26 

3.04 

2.70

2.61

2.65

-

.24

..

3.93 

3.79 

3.57

3.46

3.61

3.02 

2.71 

2.69

2.71

2.66

--

.45

__

--

.03

_.

--

.01

__

b Represents 100 percent of runoff for water year October 1953 to September 1954.
PLATTE RIVER BASIN Continued 

SUPPLY CANAL (TRI-COUNTY DIVERSION) NEAR MAXWELL

LOCATION. At gaging station at Parshall Flume in SPC. 28 T 13 N R 29 W 

RECORDS AVAILABLE . Chemical analyses: March 1951 to September 1954

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54. Specif ic conductance: Maximum daily, 1,080 micromhos Jan

Percent sodium: Maximum, 47 July 1-30, Aug. 20-31; minimum, 37 Mar. 5-31 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 1,210 Micromhos Mar 

micromhos May 15, 1951.

Percent sodium: Maximum, 47 July 1-30, Aug. 20-31, 1954; minimum, 36 Mar. 27 to Apr. 

near Maxw

21; minim

26, Apr. 

- diss°l ved solids are residue on evaporation. Daily samples 

Periods normally identical to these of Platte River at Brady, Nebr. Record

State Engineer Lincoln, Nebr. Records of discharge for water year O

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-31, 195a. 

Nov. 1-30. ......

riop 9^ 97

Dec. 28-Jan. 18, 

1954 ..........

Jan. 19-Feb. 7.. 

Feb. 8-28 ......

Mar. 1-3 .......

Mar. 4 .........

Mar. 5-31 ......

Apr. 1-30 ......

May 1-28 .......

May 29 -June 30 .

Runoff 

(acrefeet)

89,470 

73,770 

57,780 

10,910

55,060

50,740 

51,930 

6,450 

2,140 

66,700

76,010 

67,640 

96,580

Silica 

(Si02) 

ppm

29

30 

20

Equivalents per million

Calcium 

(Ca)

3. 

3. 

3.09 

5.

5.

5. 

5. 

6. 

6. 

3.69

5. 

4. 

2.64

Magnesium 

(Mg)

98 

92 

1.33 

08

46

92 

30 

44 

32 

1.61

34 

62 

1.56

Sodium 

(Na)

3.13 

2.83 

3.09 

3.22

3.61

3.78 

3.30 

4.35 

4.17 

3.26

3.65 

3.43 

3.48

Potassium 

(K)

0.28

.28 

.28

Bicarbonate 

(HCOS)

3.65 

3.51 

3.65 

3.87

3.90

3.87 

3.52 

3.74 

3.80 

3.47

3.36 

3.43 

3.38

Sulfate 

(S0<)

3.08 

2.98 

3.54 

3.98

4.64

5.48 

4.75 

6.35 

6.10 

4.58

5.00 

4.12 

3.81

Chloride 

(Cl)

0.59

.71 

.65

Fluoride 

(F)

0.03

.03 

.03

Nitrate 

(NO,)

0.03

.06 

.03

B

P

0
July 1-30, 1954.. 

July 31 -Aug. 19 .

Sept. 1-30 ......

Total or weighted 

average a .....

124,600 

80, 050 

27,750

91,280

1,029,000

--

28

3.96 

3.82 

3.76

2.45 ) 1.37

4.48

3.48 

3.26 

3.35

3.26

3.35

--

.28

3.75 

3.72 

3.59

3.62

3.61

3.33 

3.14 

3.19

3.12

4.21

--

.59

 

.03

--

.01

a Represents 100 percent of runoff for water year October 1953 to September 1954.
PLATTE RIVER BASIN Continued

SOUTH PLATTE RIVER AT JULESBURG, COLO

LOCATION.--At gaging station at bridge on State Highway 51, 0.5 mile southeast of Jule

Colorado-Nebraska State line, and 8 miles downstream from Lodgepole Creek. 

DRAINAGE AREA. 22,800 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: October 1945 to September 1954.

Water temperatures: October 1945 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 2,180 micromhos Dec. 23;

Percent sodium: Maximum, 37 June 22 to Aug. 10; minimum, 31 Sept. 15. 

EXTREMES, 1945-54.--Specific conductance: Maximum daily, 2,180 micromhos Dec. 23,

Percent sodium: Maximum, 82 Mar. 1-12, 1947; minimum, 29 Aug. 6-10, 1951, Aug. 19, 

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

conductance of daily samples available in regional office at Lincoln, Nebr. Record

September 1954 given in WSP 1340.

Chemical analyses, water year October 1953 to Septem

min

195

Date 

of 

collection

Oct. 1-10, 1953 . .. 

Oct. 11-Nov. 10 . .. 

Nov. 11-Dec. 11 .. 

Dec. 12-Jan. 15,

1QK4

Mar. 1-31 ........

Apr. 1-13 ........

Apr. 14-18 ....... 

Apr. 19-May 15 ...

May 26-June 11 ...

Runoff 

(acrefeet)

954 

7,840 

16, 500

21, 320 

8,820

14, 300 

15,260 

4,820 

696 

3,520

1,410 

1,160 

60 

561 

718

Silica 

(Si02) 

ppm

35 

30 

32

Equivalents per million

Calcium 

(Ca)

12. 

14. 

10.58

14. 

14.

14. 

9.53 

13. 

11. 

12.

11. 

7.98 

10. 

12 

11

Magnesium 

(Mg)

46 

16 

4.16

80 

56

00 

4.39 

12 

28 

48

30 

3.82 

18 

48

32 

i

Sodium 

(Na)

7.04 

7.74 

8.04

7.96 

7.87

7.87 

7.78 

7.52 

6.09 

6.96

6.00 

6.44 

5.31 

6.78 

6.65

Potassium 

(K)

0.67

.38

.43

Bicarbonate 

(HC03)

6.42

4.85

3.98

Sulfate 

(SOJ

14.99

15.20

13.22

Chloride 

(Cl)

1.97

1.78

1.78

Fluoride 

(F)

0.03

.04

.04

Nitrate 

(NO,)

0.01

.07

.04
July 10-Aug. 10, 

1954

Aug. 11 -Sept. 14

Sept. 15 ......... 

Sept. 16-30. ......

Total or 

weighted average

QDQ

1,160

1 Qfi

744

101,000

41

_

_

1 1 19

7.19 I 4.51 

4.92

12.48

14.04

6.65

2 99

6.87

7.74

.46 4.00 13.32 1.69 .04 .04 

a Residue on evaporation at 180°C.

b Represents 100 percent of runoff for water year October 1953 to September 1954.
KANSAS RIVER BASIN

REPUBLICAN RIVER ABOVE MEDICINE CREEK AT CAMBRID

LOCATION.--At bridge south of Cambridge, Furnas County, on State Highway 47, 1 mile up

of a mile upstream from confluence with Medicine Creek, and 2.3 miles upstream from 

DRAINAGE AREA. 13,200 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954.

EXTREMES, 1953-54. Specific conductance: Maximum daily, 726 micromhos Jan. 21; minim

Sept. 21-30; minimum, 11 July 26-29. 

Maximum daily (1951-54), 830 micromhos Aug. 

Percent sodium: Maximum, 27 June 11-14, 

EXTREMES, 1950-54. Specific conductance:

1954.

Percent sodium: Maximum, 29 Apr. 15-27, 1951, June 25 to July 4, Aug. 5-29, 1952; m

REMARKS. Values reported for dissolved solids are residue on evaporation. Daily samp

Records of specific conductance of daily samples available in regional office at Li

tracting the discharge of Medicine Creek at Cambridge from that of the Republican R

Republican River at Cambridge and Medicine Creek at Cambridge for water year Octobe

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 24-Nov. 3,1953 

Nov. 4-30........

T\a>f* 1 ^1

Jan. 1-31, 1954 ..

Mar. 1-31 .......

Apr. 1-18 .......

May 1-17. ........

May 18-21 .......

May 22-31 .......

Runoff 

(acrefeet)

845 

6,920 

7,920 

6,600 

10,410

8,120 

4,390 

1,710 

3,950 

2,050 

2,970

Silica 

(Si02) 

ppm

52 

48

44

Equivalents per million

Calcium 

(Ca)

4. 

4. 

3.14 

4. 

2.79

4. 

4. 

4. 

2.54 

3. 

4.

Magnesium 

(Mg)

58 

48 

1 1.58 

68 

1 1.29

58 

30 

40 

1.46 

68 

28

Sodium 

(Na)

1.35 

1.26 

1.30 

1.30 

1.09

1.26 

1.35 

1.43 

1.39 

1.17 

1.35

Potassium 

(K)

0.36 

.33

.38

Bicarbonate 

(HCO,)

4.92 

4.77 

5.01 

4.93 

4.33

4.88 

4.69 

a4.81 

4.38 

4.06 

4.69

Sulfate 

(SOJ

0.96 

.85 

.87 

.90 

.71

.83 

.87 

.98 

.94 

.79 

.96

Chloride 

(Cl)

0.28 

.24

.31

Fluoride 

(F)

0.06 

.04

.05

Nitrate 

(NO,)

0.07 

.07

.05

a Includes 0.17 equivalent per million of carbonate (COS).
June 1-10, 1954. .

Aug. 17-20......

Aug. 21-25......

Sept. 21-30 .....

Total or weighted 

average b .....

Total or weighted 

average c .....

1,970 

218

722

270

288

2,530

990

526

62, 620

63,480

--

40

4.02 

4.00

3 49

4.18

2.52

2.56

2 Q9

2.00 | 1.56

4.26

4.26

1.39 

1.48

1.17

1.48

.33

.48

.74

1.48

1.22

1.22

--

4^

4.49 

4.62

3.87

a 4 07

2.88

2.82

3

OA

4.11

4.59

4.59

.87 

.96

.81

70

.08

.33

.46

1 04

0.83

0.83

--

O1

--

.05

-

.02

a Includes 0.17 equivalent per million of carbonate-(CO,).

b Represents 99 percent of runoff for water year October 1953 to September 1954. Does not include periods o

c Includes estimated data for missing periods. Represents 100 percent of runoff for water year October 1953 
PART 7. LOWER MISSISSIPPI RIVER BASI

ARKANSAS RIVER BASIN 

ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR

LOCATION. At gaging station 1 mile upstream from Caddoa Creek, 1 3/4 miles downstream 

3 miles southeast of Hasty.

DRAINAGE AREA. 18,917 square miles (revised), of which 785 square miles is probably n

RECORDS AVAILABLE. Chemical analyses: August 1942 to August 1943, October 1945 to J

January 1951 to September 1954 (daily samples).

Water temperatures: January 1951 to September 1954. 

EXTREMES, 1953-54.-.-Specific conductance: Maximum observed, 4,740 micromhos Dec. 23; 

Percent sodium: Maximum, 42 Feb. 1-10; minimum, 27 July 23-26, 28 to Aug. 31. 

EXTREMES, 1951-54. Specific conductance: Maximum observed, 4,740 micromhos Dec. 23, 

Percent sodium: Maximum, 42 Feb. 1-10, 1954; minimum, 25 June 19-20, 1953. 

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

available in district office at Albuquerque, N. Mex. 

WSP 1341.

Records of discharge for wate

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

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

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

Nov. 21-24........

Nov. 25-30.... ....

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

Dec. 11-20........

Dec-. 21-31........

Jan. 1-10, 1954 ... 

Jan. 11-20 ........

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

Runoff 

(acrefeet)

464 

525 

750 

930 

956 

547 

22

39 

38 

49 

52 

39 

35

Silica 

(SiQj) 

ppm

22

20 

17 

20 

18 

16 

20

17 

17

25 

21 

39

Equivalents per million

Calcium 

(Ca)

18.41 

17.81 

18.01 

17.02 

17.42 

10.68 

16.82

16.07 

16.47 

17.22 

15.07 

16.82 

15.37

Magnesium 

(Mg)

12.17 

12.34 

12.17 

11.18 

12.17 

7.07 

13.32

14.23 

13.65 

14.31 

14.88 

15.46 

15.05

Sodium 

(Na)

19.13 

19.57 

18.74 

17.61 

17.78 

8.26 

21.05

20.87 

21.05 

21.96 

20.26 

21.74 

21.52

Potassium 

(K)

0.21

Bicarbonate 

(HCO,)

4.95 

4.93 

5.03 

5.29 

5.33 

4.74 

5.39

5.74 

6.18 

5.93 

6.70 

6.72 

6.49

Sulfate 

(S0<)

42.26 

41.85 

41.43 

37.47 

39.76 

20.00 

41.85

41.85 

41.85 

44.55 

40.39 

44.76 

42.26

Chloride 

(Cl)

2.99 

2.99 

2.99 

2.79 

2.85 

1.49 

3.41

3.53 

3.50 

3.64 

3.36 

3.61 

3.44

Fluoride 

(F)

Nitrate 

(NO,)

0.07 

.08 

.09 

.10 

.10 

.06 

.09

.05 

.05 

.07 

.03 

.07 

.05
Feb. 1-10, 1954... 

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

Feb. 21-28........

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

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

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

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

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

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

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

May 11-16 ........

May 17-20 ........

May 21-23, 26-31,

May 24-25 ........

June 6-10 .........

June 11-15........

June 16-19 ........

June 20-28 ........

June 29-30, July 1-7 

July 8-20 .........

32 

31

28

34

31

45

5,380

10,610

674

728

722

1,600

7,120

2,820

472

274

329

506

373

3,590 

686

57 

23

58

22

22

25

91

11

12

13

14

20

16

19

17

17

13

18

18

24 

19

15.57 

15.57

13.77

15.67

17.42

16.82

17.22

17.22

19.21

19.41

17.42

10.38

8.13

5.34

11.98

17.42

17.02

11.68

18.21

10.08 

14.07

15.71 

15.87

16.86

15.62

15.62

15.05

14.47

12.75

11.76

11.10

11.51

5.92

4.19

2.30

6.33

11.51

11.35

6.91

13.08

5.10 

8.63

22.61 

21.52

21.52

21.31

22.18

21.39

20.87

18.48

19.00

19.00

17.31

9.57

6.70

5.04

10.61

18.05

17.61

10.26

19.92

6.83 

13.48

.22

_.

___

..

__

_.

__

..

__

__

__

__

__

--

6.52 

6.54

6.16

6.80

6.72

6.64

5.72

4.02

4.70

4.98

4.42

3.87

3.36

3.29

4.28

4.51

3.85

3.70

4.20

3.72 

3.70

44.55 

43.72

42.68

41.85

44.55

42.68

40.60

42.26

42.26

39.97

21.03

14.89

8.95

22.48

39.76

39.35

23.53

43.72

17.32 

30.40

3.67 

3.55

3.50

3.41

3.67

3.47

3.33

2.90

3.02

2.99

2.68

1.47

1.04

.68

1.81

2.90

2.93

1.75

3.13

1.13 

2.28

.06 

.05

.03

.03

.05

.04

.04

.05

.07

.06

.06

.03

.05

.01

.12

.09

.06

.06

.05

.05 

.08
ARKANSAS RIVER BASIN Continued

ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR, COL

Chemical analyses, water year (Jctober 1953 to September 19

Date 

of 

collection

July 21-22, 27, 

1954 ...........

July 23-26, 28-31 

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

Aug. 21-31 ......

Sept. 1-8 ........

Sept. 9-10 .......

Sept. 11-20 ......

Sept. 21-30 ......

Total or 

weighted avsrage

Runoff 

(acrefeet)

506 

11,150 

16,510 

18,290 

16,930

11,350 

163 

553 

375

116,400

Silica 

(SiO,) 

ppm

28 

19 

15 

15 

13

15 

16 

16 

14

16

Equivalents per million

Calcium 

(Ca)

12.18 

7.68 

7.39 

7.58 

8.63

9.43 

15.87 

17.81 

18.61

10.13

Magnesium 

(Mg)

7.73 

3.87 

3.70 

3.62 

3.45

4.52 

10.53 

12.09 

12.34

5.84

Sodium 

(Na)

10.87 

4.22 

4.13 

4.13 

4.52

5.91 

15.31 

18.48 

19.13

7.96

Potassium 

(K)

0.21 

.20

..

Bicarbonate 

(HCO,)

4.85 

3.77 

2.75 

2.26 

2.39

2.65 

4.10 

4.54 

4.87

3.24

Sulfate 

(SOJ

23.94 

11.76 

12.08 

12.47 

13.59

16.47 

34.98 

40.60 

42.05

19.51

Chloride 

(Cl)

1.78 

.48 

.48 

.48 

.56

.76 

2.43 

3.05 

3.19

1.16

Fluoride 

(F)

Nitrate 

(NO,)

0.04 

.07 

.05 

.07 

.06

.05 

.06 

.06 

.04

0.06
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT ARKANSAS CITY, KANS.

LOCATION. At gaging station at Chestnut Avenue highway bridge, half a mile west of Ar

upstream from Walnut River, and at mile 701.9.

DRAINAGE AREA. 43,713 square miles (revised), of which about 7,607 square miles does 

RECORDS AVAILABLE. Chemical analyses: October 1951 to September 1954.

Water temperatures: October 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 4,720 micromhos Oct. 5; mini

Percent sodium: Maximum, 78 Oct. 5, Apr. 30; minimum, 46 May 29.

Sodium adsorption ratio: Maximum, 16 Oct. 5; minimum, 1.8 May 29. 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 4,720 micromhos Oct. 5. 1953

Percent sodium: Maximum, 78 Oct. 5, 1953, Apr. 30, 1954; minimum, 45 Aug. 8-10 195

Sodium adsorption ratio: Maximum, 16 Oct. 5, 1953; minimum, 1, 8 May 29, 1954.

REMARKS. Values reported for dissolved solids are residue on evaporation at 180"C. R

available in district office at Oklahoma City, Okla. Records of discharge for wate

*

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-4, 1953 . . 

Oct. 5..........

Oct. 6 .........

Oct. 11-20 .....

Oct. 21-25......

Oct. 26.........

Oct. 27.........

Oct. 28.........

Oct. 29-31 ......

Nov. 1-10 ......

Nov. 23-30. .....

Runoff 

(acrefeet)

1,220 

524 

377 

1,319 

3,277 

1,968 

1,018 

1,351 

1,018 

2,281

6,486 

8,987 

2,515 

6.783

Silica 

(Si02) 

ppm

10 

11

Equivalents per million

Calcium 

(Ca)

5.89 

6.84 

4.29 

5.69 

5.49 

4.89 

3.79 

3.29 

2.99 

3.99

4.74 

4.69 

3.59 

4.69

Magnesium 

(Mg)

2.47 

3.26 

1.83 

2.47 

2.55 

2.07 

1.49 

1.35 

1.13 

1.61

1.97 

1.89 

1.40 

1.81

Sodium 

(Na)

19.52 

35.22 

13.00 

18.87 

18.74 

16.70 

12.91 

10.18 

7.74 

12.91

15.13 

15.87 

9.96 

15.00

Potassium 

(K)

0.23 

.19

Bicarbonate 

(HCOj)

a4. 17 

a4.02 

b3.12 

4.02 

4.02 

3.83 

2.84 

2.69 

2.49 

3.28

3.59 

3.57 

2.98 

3.69

Sulfate 

(SOJ

3.77 

5.83 

2.87 

3.60 

3.50 

3.19 

2.42 

2.12 

2.00 

2.52

3.04 

3.16 

2.48 

3.21

Chloride 

(Cl)

20.31 

36.10 

13.03 

19.46 

18.47 

16.50 

12.75 

9.81 

7.28 

12.64

14.52 

15.37 

9.31 

13.96

Fluoride 

(F)

0.03 

.03

Nitrate 

(NO,)

0.19 

.18 

.18 

.21 

16 

.21 

.21 

.19 

.16 

.16

.18 

.18 

.10 

.15

a Includes 0.17 equivalent per million of carbonate (COS). 

b Includes 0.07 equivalent per million of carbonate (COS).
ARKANSAS RIVER HASIN Continued

ARKANSAS RIVER AT ARKANSAS CITY, KANS. Con

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Dec. 1-4, 1953.

Dec. 6-10 .....

Dec. 11-20 .... 

Dec. 21-31 ....

Jan. 1-10, 1954. 

Jan. 11-15, 17-19 

Jan. 16, 20 .... 

Jan. 21-22,25-31

Feb. 1-10 .....

Feb. 11-20.....

Feb. 21-28.....

Mar. 1-10 .....

Mar. 11-20.... 

Mar. 21-25 . . . 

Mar. 26-27 .... 

Mar. 28-31 ....

Apr. 11-20 .... 

Apr. 21-22 .... 

Apr. 23-29 .... 

Apr. 30 .......

May 1-3 .......

May 4-7 .......

May 8-10 .....

Runoff 

(acrefeet)

4,691 

1,377 

6,599 

10,690 

10,730

9,471 

5,871 

1,329 

6,764 

1,488

12, 840 

10,880 

10, 570

10,870 

10,350 

5,252 

4,126 

4,915

9,172 

8,120 

1,874 

5,829 

1,148

4,748 

11,680 

5>605

Silica 

(Si02) 

ppm

14 

14

6.4

Equivalents per million

Calcium 

(Ca)

4.79 

3.69 

4.44 

5.09 

5.49

5.29 

6.69 

 5.49 

5.79 

7.39

5.29 

5.84 

5.09

5. 59 

5.64 

5.64 

3.74 

4.89

5.09 

5.49 

5.59 

4.89 

5.59

4.34 

3.09 

4.14

Magnesium 

(Mg)

1.89 

1.32 

1.73 

1.97 

2.30

2.14 

2.80 

2.30 

2.38 

3.12

2.14 

2.63 

2.06

2.63 

2.63 

2.36 

1.48 

2.19

2.35 

2.35 

2.61 

2.81 

2.51

1.70 

.95 

1.42

Sodium 

(Na)

15.74 

10.04 

13.74 

16.09 

16.70

15.74 

20.92 

15.78 

17.00 

24.44

13.96 

16.87 

14.74

16.05 

16.74 

17.83 

8.13 

13.74

17.09 

18.00 

21.26 

17.00 

28.87

14.83 

7.30 

12.39

Potassium 

(K)

0.19 

.18

.16

Bicarbonate 

(HCO,)

3.49 

3.13 

3.51 

3.75 

3.92

3.95 

4.42 

4.03 

4.29 

4.65

3.57 

3.87 

3.62

3.88 

3.80 

3.64 

2.87 

3.54

3.70 

3.79 

3.51 

3.56 

c3.07

3.24 

2.75 

2.98

Sulfate 

(804)

3.50 

2.44 

3.19 

3.64 

4.02

4.29 

5.18 

4.21 

4.29 

4.79

4.54 

5.87 

4.83

5.33 

5.56 

5.37 

2.96 

4.56

5.14 

5.04 

4.79 

4.41 

5.66

3.85 

2.02 

3.25

Chloride 

(Cl)

15.09 

9.31 

12.55 

15.09 

15.93

14.38 

20.02 

14.39 

15.93 

24.25

12.55 

14.67 

13.54

14.81 

15.37 

16.78 

7.47 

12.69

15.57 

17.20 

21.15 

16.22 

27.08

12.97 

6.49 

11.70

Fluoride 

(F)

0.03 

.03

.02

Nitrate 

(NO,)

0.14 

.06 

.12 

.15 

.18

.16 

.23 

.27 

.24 

.19

.15 

.14 

.10

.13 

.13 

.11 

.09 

.00

.04 

.11 

.00 

.01 

.10

.07 

.05 

.05

c Includes 0.10 equivalent per million of carbonate (CO,).
May 11-20, 1954. 

May 21-25 .....

May 26-27 .....

May 28 ........ Man 9Q

May 30-31 .....

June 11-20 .... 

June 21-25 ....

July 3-10 .....

July 11-20 .....

July 21-31 .....

Aug. 1-10 .....

Aug. 11-20 .... 

Aug. 21-31 .... 

Sept. 1-10 .... 

Sept. 11,13-20 .

Sept. 21-30 ....

Total or 

weighted average

10,440 

5,375

7,775

7,636 9 QR7

8,926

2,876

2,281

12,610

14,160 

8,233 

4,463

1,767

4,598

3,199 2 1,14

920 

1,559 

1,664 

1,355 

276

672

331,000

--

18

--

16

4.79 

4.89

2.64

2.79

1 01

2 

fid

3.09

3.74

4.94

4.49 

3.84' 

5.09

5.09 4 7Q

5.59

5.59

5.79

7.49 

5.99 

5.39 

5.89 

4.59

6.79

4.69

1.89 

2.21

.62

1.31

44

79

1.05

1.30

2.38

2.31 

1.36 

1.99

2.47

1.77

2.91 2 Q1

2.81

3.41 

3.21 

2.81 

2.51 

1.91

3.51

4.69

15.96 

18.70

3.91

5.31

1 Oft 4 57

6.04

8.78

15.61 

13.48 

18.48

14.61

24.18

94 3Q

25.61

28.18 

25.48 

22.61 

22.09 

13.35

25.00

14.78

--

20

--

.31

--

3.36 

3.47

2.56

d2. 54

1.98

d2.49

2.74

3.08 3 m

3.39 

2.98 

3.65

e3.68

3.51

3.05 2 7Q

3.54

b4. 53 

4.20 

3.90 

b4.41 

e3.53

4.47

3.42

4.21 

4.62

1.29

1.83

.62

1 49

1.69

2.25

3.79 

2.75 

3.98 3

7Q

3

AA

4.16 3 Q1 3 77

3.66 

3.81 

3.50 

3.12 

2.52

3.75

3.75

15.37 

17.77

3.78

5.08 1

7K

4 9H

5.92

8.46

21.72

15.23 

12.83 

17.63

18.33

14.10

24.54

9R fifi

25.44

31.02 

25.38 

23.27 

22.56 

13.88

27.13

14.02

--

.03-

.05

.05 

.05

.02

.09

.08

.05

.19

.08

.10

.04 

.07 

.07

.08

.08

.10

.15

.11

.06 

.12 

.10 

.14 

.16

.15

.11

b Includes 0.07 equivalent per million.of carbonate (CO,),

d Includes 0.13 equivalent per million of carbonate (CO,),

e Includes 0. 27 equivalent per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT RALSTON, OKLA.

LOCATION.--At gaging station at bridge on State Highway 18 at Ralston, Pawnee County, 

2 miles upstream from Grayhorse Creek, and at mile 594.0.

DRAINAGE AREA. 54,465 square miles (revised) of which 7,615 square miles is probably 

RECORDS AVAILABLE. Chemical analyses: January 1950 to September 1954.

Water temperatures: January 1950 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 5,800 micromhos May 30; mini

Percent sodium: Maximum, 86 May 30; minimum, 66 Dec. 6-10, Jan. 11-31, May 1-3. 

EXTREMES, January 1950 to September 1954. Specific conductance: Maximum daily, 5,800 

319 micromhos July 16, 1951.

Percent sodium: Maximum, 86 May 30, 1954; minimum, 36 July 18-20, 1950.

REMARKS. Values reported for dissolved solids are residue on evaporation at 180"C. R

samples available in district office at Oklahoma City, Okla. Records of discharge 

September 1954 given in WSP 1341.

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-9, 1953 .... 

Oct. 10...........

Oct. 11-14........

Oct. 15-20........

Oct. 21-29........

Oct. 30...........

Oct. 31...........

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

Nov. 11-18 .......

Nov. 19 ..........

Nov. 20. ..........

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

Dec. 1-5. .........

Dec. 6-10.........

Dec. 11-20. .......

Dec. 21-31. .......

Runoff 

(acrefeet)

3,473 

520 

1,617 

2,202 

5,421 

1,964 

2,043

9,291 

5,248 

3,451 

2,460 

24,970

10, 300 

15,350 

15,660 

14.200

Silica 

(SiOJ 

ppm

--

Equivalents per million

Calcium 

(Ca)

4.94 

5.69 

5.34 

5.29 

5.19 

7.58 

3.24

4.39 

4.69 

2.69 

3.14 

4.19

4.49 

3.09 

4.99 

5.59

Magnesium 

(Mg)

2.50 

3.01 

2.94 

2.55 

2.41 

3.42 

1.48

1.97 

2.30 

.90 

1.32 

1.81

1.97 

1.32 

1.97 

2.30

Sodium 

(Na)

18.61 

25.18 

22.74 

19.13 

17.70 

23.13 

11.83

13.87 

17.39 

7.31 

10.70 

12.78

14.26 

8.44 

15.61 

16.61

Potassium 

(K)

--

Bicarbonate 

(HC03)

3.26 

2.87 

3.38 

3.57 

3.47 

3.13 

2.64

3.31 

3.36 

1.43 

2.39 

2.90

3.16 

2.43 

3.59 

3.82

Sulfate 

(SOJ

3.60 

4.43 

4.06 

3.52 

3.27 

3.46 

2.19

2.77 

3.31 

.71 

1.92 

2.46

2.64 

1.75 

3.21 

3.48

Chloride 

(Cl)

19.74 

27.08 

24.25 

20.59 

19.18 

27.92 

11.62

13.96 

17.20 

8.74 

10.44 

12.97

14.52 

8.69 

15.23 

16.92

Fluoride 

(F)

--

Nitrate 

(NO,)

0.02 

.05 

.03 

.01 

.01 

.11 

. 11

.06 

.04 

.12 

.07 

.10

.09 

.10 

.13 

.14
Jan. 1-10, 1954 ... 

Jan. 11-20........

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

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

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

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

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

Mar. 21-27 .......

Mar. 28-31 .......

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

Apr. 11-14 .......

Apr. 15-20 .......

Apr. 21-29. .......

May 1-3, 1954 .... 

May 4, 8 .........

May 5, 9 .........

May 6-7, 10 ......

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

May 21-25 ........

May 26-27 ........

May 28 ...........

15,230 

11,090

11,300

13,480

12, 570

10, 940

12, 690

12, 280

9,501

11,010

15,620

4,554

6,559

11,380

2,221

38, 860 

9,917

8,331

11,250

21,380

7,624

12,690

12. 580

12

a Includes 0.10 equivalent per million of carbonate (CO,).

5.64

6.04

6.19

5.34

5.54

5.29

5.59

5.69

5.19

4.34

4.89

4.99

5.39

4.59

3.84

2.89

3.49

4.39

5.09

5.49

5.09

3.69

3.79

2.38

2.63

2.71

2.30

2.55

2.55

2.63

2.88

2.80

2.06

2.63

2.51

2.81

2.51

1.81

1.03

1.27

1.69

1.91

3.11

2.47

1.35

1.29

16.61

17.13

17.31

15.57

16.31

16.22

17.13

19.09

20.87

12.96

18.13

18.35

20.57

20.22

12.31

7.61

12.22

17.65

23.79

34.09

31.66

15.78

18.70

__

--

--

__

.-

--

__

--

--

--

__

--

--

_.

__

__

--

--

.15

..

..

--

3.87

4.10

4.10

3.72

3.65

3.41

3.62

3.67

3.16

2.92

2.75

2.82

2.87

2.69

a2.71

2.36

2.39

2.54

2.80

2.82

2.67

2.61

2.34

3.83

4.21

4.04

3.89

4.89

4.60

4.58

5.27

5.06

3.39

4.50

4.46

4.56

4.14

2.54

1.44

2.17

2.96

3.79

5.18

5.25

2.75

2.75

16.36

16.78

17.91

15.51

15.37

16.08

16.92

18.47

20.59

12.41

18.05

18.76

21.72

20.87

12.83

7.76

12.41

18.05

24.25

34.69

31.31

15.65

18.47

__

--

--

--

--

--

__

--

--

--

__

--

--

-_

__

__

--

--

.03

-.

-.

--

.14

.14

.16

.15

.08

.07

.08

.05

.05

.08

.03

.01

.00

.05

.00

.00

.01

.01

.00

.03

.04

.03

.05
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT RALSTON, OKLA . Continu

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

May 29, 1954 .....

May 30 ...........

May 31 ...........

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

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

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

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

July 21-31 ........

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

Aug. 11. ..........

Aug. 12-20. .......

Aug. 21-31. .......

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

Sept. 11-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

10,910 

10, 230 

15,110 

55, 560 

18, 530 

17,120

9,461 

4,756 

3,062 

2,674 

516 

2,739 

2,749

1,799 

1,428 

1,228

559, 100

Silica

(sicg

PPm

14 

14 

22

14 

10

Equivalents per million

Calcium 

(Ca)

4.94 

5.69 

4.49 

5.49 

5.99 

3.89

5.39 

4.49 

4.69 

4.59 

2.89 

4.14 

3.99

4.49 

4.99 

5.39

5.69

Magnesium 

(Mg)

1.10 

2.31 

1.63 

3.01 

2.01 

3.51

2.61 

2.61 

2.71 

2.61 

1.11 

2.46 

2.61

2.61 

1.41 

2.41

2.22

Sodium 

(Na)

30.70 

47.40 

31.09 

35.05 

27.00 

23.22

24.87 

22.87 

22.31 

21.57 

8.17 

18.87 

18.09

20.26 

20.22 

20.26

20.57

Potassium 

(K)

0.19 

.18 

.21

.28 

.31

--

Bicarbonate 

(HC03)

b2.20 

c2.70 

2.49 

2.74 

3.03 

b3.10

2.82 

2.47 

2.49 

2.43 

C2.42 

2.46 

2.25

2.56 

2.77 

3.11

2.97

Sulfate 

(SOJ

3.68 

5.39 

3.68 

5.04 

4.68 

4.14

4.23 

4.12 

3.71 

3.41 

1.50 

3.25 

2.83

3.06 

3.27 

3.25

3.73

Chloride 

(Cl)

30.18 

46.54 

31.02 

36.66 

28.77 

23.41

26.79 

23.41 

25.38 

22.00 

7.95 

19.74 

20.02

21.01 

21.86 

22.56

20.90

Fluoride 

(F)

0.03 

.03 

.04

.03 

.03

Nitrate 

(NO,,)

0.10 

.08 

.08 

.03 

.02 

.03

.05 

.02 

.03 

.04 

.10 

.03 

.03

.03 

.04 

.03

0.06

b Includes 0. 07 equivalent per million of carbonate (CO,), 

c Includes 0.13 equivalent per million of carbonate (CO3).
ARKANSAS RIVER BASIN

CIMARRON RIVER AT PERKINS, OKLA .

LOCATION. At gaging station at bridge on State Highway 40, 1 mile south of Perkins, 

Creek, 4 miles downstream from Wildhorse Creek, and at mile 87.3. 

DRAINAGE AREA. 17, 852 square miles (revised), of which 4,926 square miles is probabl

RECORDS AVAILABLE.-- Chemical analyses: October 1952 to September 1954.

Water temperatures: October 1952 to September 1954.

EXTREMES, 1953-54. --Specif ic conductance: Maximum daily, 24,600 micromhos Aug. 28; m

Percent sodium: Maximum 92 Aug. 30 to Sept. 1; minimum, 63 Nov. 21-22. 

Sodium adsorption ratio: Maximum, 65 Feb. 5; minimum, 3.8 Nov. 21-22. 

EXTREMES, 1952-54 . Specif ic conductance: Maximum daily, 27,400 micromhos Jan. 11, 1

Nov. 22, 1953. 

Percent sodium: Maximum 92 Dec. 31, 1952; Jan. 1-2, 11-13, Feb. 21-23, Mar. 11-12, 

minimum, 63 Nov. 21-22, 1953.

Sodium adsorption ratio: Maximum, 82 Jan. 11-12, 1953; minimum, 3.8 Nov. 21-22, 19

REMARKS. --Values for reported dissolved solids are residue on evaporation. Records o

available in district office at Oklahoma City, Okla. Records of discharge for wate

in WSP 1341. 

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-6, 1953 .... 

Oct. 7............

Oct. 8............

Oct. 9-10.........

Oct. 11...........

Oct. 12-14..... ...

Oct. 15...........

Oct. 16...........

Oct. 17...........

Oct. 18-19........

Oct. 20 ...........

Oct. 21-22........

Oct. 23...........

Oct. 24...........

Oct. 25-28 ........

Runoff 

(acrefeet)

317 

424 

444 

381 

121 

256 

89 

278

196 

325 

81 

214 

436 

1,805 

6.065

Silica 

(SiO,) 

ppm

Equivalents per million

Calcium 

(Ca)

10.93 

7.49 

4.09 

3.69 

4.99 

5.94 

6.89 

4.09

8.68 

4.49 

5.34 

6.69 

3.29 

4.44 

1.90

Magnesium 

(Mg)

5.23 

3.41 

1.55 

1.47 

2.14 

2.80 

3.62 

2.06

4.36 

2.30 

2.55 

3.01 

1.39 

1.84 

.64

Sodium 

(Na)

94. 

57. 

36. 

24. 

26.66 

36.66 

52.18 

29.13

72.18 

27.09 

34.40 

46.53 

21.44 

26.79 

6.87

Potassium 

(K)

64 

69 

80

77

Bicarbonate 

(HCOS)

3.92 

5.21 

2.67 

2.13 

2.72 

3.61 

2.92 

2.02

3.06 

3.38 

3.34 

3.03 

1.95 

2.97 

1.79

Sulfate 

(SOJ

8.45 

6.41 

4.23 

4.06 

4.27 

4.18 

5.83 

3.14

7.20 

3.44 

3.44 

4.31 

1.98 

2.69 

.83

Chloride 

(Cl)

98.43 

56.97 

35.54 

23.69 

27.08 

36.66 

54.15 

29.61

73.33 

26.51 

34.69 

49.64 

22.84 

28.49 

6.91

Fluoride 

(F)

Nitrate 

(NO,)

0.05 

.06

.02

.05 

.05
ARKANSAS RIVER BASIN Continued

CIMARRON RIVER AT PERKINS, OKLA. Con

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Oct. 29, 1953. .....

Oct. 30-31 ........

Nov. 21-22........

Nov. 23...........

Nov. 24...........

Nov. 25-26........

Nov. 27-28.... ....

Nov. 29-30........

Dec. 1-2..........

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

Dec. 5-8..........

Dec. 9-10.........

Dec. 11-20........

Dec. 21-22........

Dec. 23-31........

Jan. 1-7, 10, 1954 

Jan. 8-9 ..........

Jan. 11-20........

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

Runoff 

(acrefeet)

885 

1,139 

417 

579 

639 

510 

750

1,823 

10,910 

13,900 

1,260 

813 

1,210 

889 

764

904 

1,234 

2,440 

10,240 

1,123 

3,725 

589 

2,194

2,108 

571 

2,299 

2.263

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

2.64 

5.74 

4.09 

6.09 

9.53 

10.03 

9.83

11.23 

1.90 

1.80 

1.90 

5.44 

4.29 

6.29 

7.88

9.33 

4.44 

7.29 

3.79 

2.89 

9.23 

9.43 

11.33

11.43 

12.87 

11.13 

11.23

Magnesium 

(Mg)

1.28 

2.56 

1.55 

2.41 

4.13 

4.99 

4.51

5.19 

.58 

.56 

.70 

2.86 

1.67 

2.81 

3.52

4.51 

2.00 

3.21 

1.45 

1.11 

4.01 

4.43 

5.01

5.29 

5.89 

5.19 

5.39

Sodium 

(Na)

14.05 

58.70 

27.39 

40.27 

99.14 

140.02 

101.75

120.45 

6. 

4.09 

7.91 

56.53 

27.61 

53.05 

81.75

126.97 

36.87 

86.53 

33.27 

21.00 

107.41 

95.23 

126.10

139.15 

192.20 

127.41 

127.84

Potassium 

(K)

68

Bicarbonate 

(HCOS)

1.84 

2.25 

2.31 

2.79 

3.06 

3.65 

4.36

4.49 

2.31 

2.21 

1.77 

2.70 

2.98 

3.61 

3.38

3.46 

3.39 

4.16 

2.11 

2.08 

3.92 

5.23 

4.65

a4.79 

4.62 

4.83 

4.59

Sulfate 

(SOJ

1.37 

4.85 

3.54 

5.16 

7.72 

7.95 

7.27

8.68 

.69 

.58 

.90 

4.43 

2.69 

4.58 

6.62

7.66 

2.37 

4.62 

2.85 

2.37 

7.18 

6.91 

9.01

9.39 

10.64 

9.14 

9.18

Chloride 

(Cl)

14.81 

59.79 

28.20 

41.18 

104.07 

144.40 

104.07

124.94 

6.06 

3.84 

7.90 

58.10 

28.77 

55.00 

84.05

131.14 

37.79 

89.69 

33.56 

20.87 

109.43 

97.58 

128.61

144.40 

198.55 

130 . 58 

131.99

Fluoride 

(F)

Nitrate 

(NO,)

0.06 

.08

.10 

.03 

.06

.07

a Includes 0.17 equivalents per million of carbonate (COS ).
Feb. 1-4, 1954... 

Feb. 5...........

Feb. 6-8.........

Feb. 9-10...... . .

Feb. 11-19... ....

Feb. 20....... ...

Feb 21

Feb. 22..........

Feb. 23..........

Feb. 24-25.......

Feb. 26-28.......

Mar. 1-4.........

Mar. 5-6. ........

Mar. 7-10. .......

Mar 11-20

Mar 21-26

Mar. 27. .........

Mar. 28. .........

Mar. 29 .........

Mar. 30-31. ......

920 

313

972

579

2,097

772

1,180

720

450

591

631

781

456

865

1,672

1,759

1,289

912

478

613

10.48 

12.28

8.93

7.83

9.58

4.99

5.39

7.44

4 OQ

7 94

10.28

11.18

12.33

9.78

10.78

1O 93

6.24

3.49

4.64

8.18

5.84 

7.07

5.26

4.61

5.84

2.88

2.80

4.11

2 47

4

90

5.59

6.09

7.40

6.02

6.60

6.59

3.36

1 71

2 47

3.72

145.67 

203 . 50

146.54

110.45

139 . 58

60.01

50.01

98.71

9fi 1 3

1 Oft Q7

153.06

196.55

143 . 50

150.89

138.71

57.40

28.26

41.66

82.62

3.97 

3.79

4.18

b4.48

4.06

2.69

C3.87

C3.10

b3.25

3 7ft

3.95

4 no

4 91

F A. 1Q

C4.28

4

OO

d3.74

2 11

C2.62

3.77

9.74 

11.80

9.37

7.93

9.20

4.06

4.41

6.89

4 1 9

7 19

8.62

10.24

11.45

9.56

10.01

9.68

6.37

2.85

4.04

6.93

148 . 63 

201.37

142.99

109.43

136.22

59.79

50.20

25.10

83.20

m 7fi

155.69

201.65

148.63

155.40

1 49 QQ

59.23

28.20

At) on

84.61

b Includes 0.10 equivalents per million of carbonate (CO3 ). 

c Includes 0.13 equivalents per million of carbonate (CO,), 

d Includes 0.23 equivalents per million of carbonate (CO3 ).

.18

.03
ARKANSAS RIVER BASIN Continued 

CIMARRON RIVER AT PERKINS, OKLA. Contin

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Apr. 1-2, 1954... 

Apr. 3-5. ........

Apr. 6-9.........

Apr. 10..........

Apr. 11-16.......

Apr. 17-20.......

Apr. 21-28.......

Apr. 29-30.......

May 1. ...........

May 2-3. .........

May 4-5. .........

May 6-10. ........

May 11. ..........

May 12-13. .......

May 14. ..........

May 15-16, 19....

May 17-18, 20.... 

May 21. ..........

May 23-25. .......

May 26. ..........

May 27. ..........

May 28-29. .......

a Includes 0.17 ec 

b Includes 0 . 10 ec 

d Includes 0 . 23 ec 

e Includes 0.30 ec 

f Includes 0 . 33 ec

Runoff 

(acrefeet)

460 

657 

629 

131 

1,012 

764 

1,486 

528

924 

13,410 

5,950 

5,581 

869 

1,337 

520 

1,240

1,081 

389 

361 

1,611 

16,280 

18,350 

15,070 

7,557 

uivalents pe 

uivalents pe 

uivalents pe 

uivalents pe 

uivalents pe

Silica 

(Si02) 

ppm

r millio 

r millio 

r millio 

r millio 

r millior

Equivalents per million

Calcium 

(Ca)

7.58 

8.93 

10.03 

5.79 

10.43 

7.98 

11.03 

11.38

8.78 

5.79 

5.64 

12.92 

5.79 

6.19 

8.08 

9.73

12.03 

12.18 

9.73 

12.23 

5.89 

3.49 

5.79 

6.99 

i of carl 

n of cart 

i of cart 

n of carl 

i of carb

Magnesium 

(Mg)

3.82 

5.21 

6.19 

1.21 

5.31 

4.70 

5.71 

8.72

2.82 

1.29 

1.32 

3.70 

2.01 

2.65 

3.32 

4.03

5.19 

6.20 

4.03 

5.37 

1.81 

1.47 

1.51 

2.59 

wnate (C 

onate (C 

 onate (C 

onat e (C 

onate (C

Sodium 

(Na)

76.97 

123.06 

164.37 

52.62 

127.84 

89.14 

131.76 

69.57

58.70 

23.74 

16.87 

115.23 

53.92 

40.53 

74.79 

101.75

142.19 

180.89 

106 . 10 

180.02 

55.22 

31.35 

46.09 

87.84

os). 

os). 

os).

0,).

o,).

Potassium 

(K)

Bicarbonate 

(HC03)

e4.23 

3.21 

3.90 

b2.44 

4.33 

4.15 

3.54 

3.05

2.98 

2.43 

1.97 

2.39 

2.08 

4.36 

f 3.76 

3.62

3.43 

2.92 

d3.16 

a 3. 38 

2.72 

2.08 

2.26 

2.39

Sulfate 

(SOJ

6.87 

9.12 

9.76 

4.00 

9.02 

7.79 

11.24 

14.03

8.41 

6.37 

6.14 

12.37 

5.00 

4.31 

6.89 

8.91

10.91 

12.28 

9.39 

11.30 

5.43 

3.04 

5.29 

6.22

Chloride 

(Cl)

77.56 

122.12 

164.14 

53.59 

127.76 

89.97 

133.40 

66.28

59.23 

21.86 

15.51 

115.07 

53.59 

40.33 

74.74 

99.84

141.58 

184.73 

105.48 

180.78 

55.00 

31.31 

46.54 

87.71

Fluoride 

(F)

Nitrate 

(NO,)

0.03 

.04
June 1, 1954......

June 8-10 ........

June 11-12... ....

June is ..........

June 16-17 .......

June 18 ..........

June 26-28 .......

June 29 ..........

June 30 ..........

2,797

3,461

1,924

655

555

1,329

754

1,575

710

541

996

1,507

1,398

1,073

1,843

186

432

127

111

6.39

6.39

6.09

8.18

8.08

9.63

8.73

6.99

9.43

6.29

7.09

3.94

5.44

9.53

8.28

10.28

11.68

9.98

10.43

3.01

3.21

2.79

4.02

3.92

4.43

4.91

4.21

4.93

2.99

3.55

2.98

2.52

4.33

3.12

4.02

4.72

5.92

4.83

83.49

75.66

62.62

82.62

85.66

86.97

101.32

72.62

98.27

53.05

62.18

37.35

40.53

100.45

42.88

55.66

71.75

85.66

91.75

g2.76

2.79

g2.79

h3.41

h3.28

d3.84

2.44

2.85

13.53

13.68

f 3.84

h2.95

2.29

2.74

2.46

2.69

C3.44

1.67

1.64

6.06

5.91

5.77

7.58

7.74

8.37

8.81

5.98

8.04

4.73

5.58

3.41

5.00

9.22

9.47

9.85

10.20

10.39

10.20

85.17

73.89

61.48

83.20

84.61

89.69

101.81

73.33

101:81

52.74

63.46

37.51

41.18

101 . 25

41.74

56.12

74.74

87.43

94.20

c Includes 0.13 equivalents per 

d Includes 0.23 equivalents per 

f Includes 0.33 equivalents per 

g Includes 0.07 equivalents per 

h Includes 0.20 equivalents per 

i Includes 0.27 equivalents per

million of carbonate (CO3 ). 

million of carbonate (CO,), 

million of carbonate (CO3 ). 

million of carbonate (CO3 ). 

million of carbonate (CO3 ). 

million of carbonate (CO3 ).
ARKANSAS RIVER BASIN Continued 

CIMARRON RIVER AT PERKINS, OKLA.--Contin

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

July 2 ...........

July 7 ...........

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

July 9-10 ........

July 13 ..........

July 14-20 .......

July 21-24 .......

July 25-27. .......

July 30 ..........

Aug 1

Aug 3

Aug. 11-12.......

Aug. 13-18.......

Aug. 19-20.......

Aug. 21-23.......

Runoff 

(acrefeet)

99 

91 

311 

58 

50 

77 

75

38 

248 

121 

77 

46 

19 

16

26 

63 

26 

81 

18 

51

14 

13 

3.0

Silica 

(S102) 

ppm

Equivalents per million

Calcium 

(Ca)

10.63 

8.48 

10.33 

10.73 

12.43 

10.63 

11.63

8.63 

12.13 

12.72 

11.93 

11.93 

8.08 

11.93

9.18 

9.53 

9.18 

10.33 

11.13 

4.99

3.79 

6.59 

2.79

Magnesium 

(Mg)

3.13 

5.52 

6.21 

6.79 

4.13 

6.51 

6.87

6.73 

7.17 

7.88 

7.19 

7.99 

6.28 

6.51

8.02 

6.59 

5.42 

7.39 

7.97 

4.41

4.01 

4.41 

5.21

Sodium 

(Na)

96.10 

80.01 

 99.58 

110.88 

103.06 

106.10 

112.19

97.40 

113.93 

114.36 

98.27 

113.49 

83.92 

105.23

71.75 

104.36 

71.75 

92.62 

95.66 

46.09

43.40 

46.96 

29.53

Potassium 

(K)

Bicarbonate 

(HC03)

2.03 

2.10 

2.67 

2.74 

2.62 

2.61 

2.67

1.64 

3.03 

3.13 

3.06 

2.67 

1.80 

c2.97

g2.30 

1.92 

2.16 

2.51 

c2.67 

g4.46

2.16 

3.93 

2.23

Sulfate 

(S0«)

9.91 

8.39 

9.31 

10.01 

9.12 

9.24 

9.60

8.16 

9.01 

8.85 

7.68 

8.33 

6.62 

8.29

5.66 

8.24 

5.66 

7.02 

7.33 

4.52

4.12 

4.46 

3.06

Chloride 

(Cl)

95.61 

81.79 

101.25 

113.66 

106.33 

108.02 

117.04

100 . 12 

117.33 

120.43 

108.02 

122.12 

89.12 

113.66

80.38 

110.84 

77.56 

99.84 

106.61 

46.54

45.13 

50.77 

31.59

Fluoride 

(F)

Nitrate 

(NO,)

-

c Includes 0.13 equivalents per million of carbonate (CO,), 

g Includes 0. 07 equivalents per million of carbonate (CO3).
Aug. 25-26, 1954 

Aug. 27-29.......

Aug. 30-31.......

Sept. 1. ..........

Sept. 2-3. ........

Sept 4-6. ..

Sept. 7-8. ........

Sept. 15-20. ......

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

Total or 

weighted average

44 

458

355

1,109

2,721

383

117

81

96

47

37

220, 900

10

__

4.19 

19.56

6.59

5.94

2.20

3.69

5.99

8.68

W 7Q

7.24

9.53

6.14

6.01 

18.04

1.99

2.72

.96

1.91

1.91

2.82

2 23

7.80

6.59

2.55

51.75 

217.42

Q4 70

97.40

7.87

31.18

55.66

85.23

QQ Rft

113.06

108.71

59

0.38

14

2.06 

4.74

f, Q 00

3.23

2.21

2.88

g3.15

b3.03

2.54

2.75

2.79

4.75 

14.76

5.89

5.54

.81

2 91

3.68

5 

on

5

07

6.68

6.72

5.39

55.00 

237.47

94.20

Qt (V7

8.12

32.43

56.41

07 AQ

103.51

113.66

117.33

59.23

.02

..

-

.09

.05

__

b Includes 0.10 equivalents per million of carbonate (CO3 ). 

c Includes 0.13 equivalents per million of carbonate (CO3 ). 

g Includes 0.07 equivalents per million of carbonate (CO3 ).
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT VAN BUREN, ARK.

LOCATION. At gaging station at bridge on U. S.Highways 64 and 71 at Van Buren, Crawf

8.6 miles downstream from Poteau River, and at mile 353.4.

DRAINAGE AREA.--150,483 square miles (revised), of which 22,241 square miles is proba

RECORDS AVAILABLE.--Chemical analyses: October 1945 to September 1954.

Water temperatures: October 1945 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum, 8,980 micromhos Apr. 1; minimum, 2

Percent sodium: Maximum, 78 June 1-3, 6-9; minimum, 51 May 6-10. 

EXTREMES, 1945-54.--Specific conductance: Maximum, 8,980 micromhos Apr. 1, 1954; mini

Percent sodium: Maximum, 80 Oct. 21-24, 1946; minimum, 32 July 18-27, 1951.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records o

in district office at Fayetteville, Ark. Records of discharge for water year Octo

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-6, 9, 1953. 

Oct. 7, 10-12, 16. 

Oct. 8, 13-15.....

Oct. 17-27.......

Oct. 28-30 .......

Oct. 31, Nov. 1-3 

Nov. 4-8... ......

Nov. 11-20, 23-24 

Nov. 21-22, 25-27 

Nov. 28-29 ......

Nov. 30, Dec. 1-6 

Dec. 6-9 ........

Dec. 10-11...... .

Dec. 12-13.......

Dec. 14-20 ......

Dec. 21-23, 25-27 

Dec . 24, 28-29 . . . 

Dec. 30-31.......

Runoff 

(acrefeet)

26, 580 

22, 180 

16,360 

96, 520 

91,440 

57,720

42,470 

17, 240 

94, 350 

75,150 

24, 930 

62, 200

79, 580 

25,350 

28, 640 

64, 860 

39,990 

18,330 

12,970

Silica 

(SiOa) 

ppm

7.4 

8.0 

7.5 

8.5 

7.2 

6.5

7.1 

8.6 

6.4 

7.0 

6.6 

7.4

8.3

8.0 

6.8

7.7

Equivalents per million

Calcium 

(Ca)

5.44 

4.09 

3.59 

5.79 

3.89 

3.14

4.29 

5.54 

6.34 

5.14 

3.49 

3.54

4.69 

3.69 

4.44 

3.94 

4.69 

5.89 

7.38

Magnesium 

(Mg)

2.22 

1.64 

1.48 

2.55 

1.56 

1.15

1.81 

2.30 

2.47 

2.06 

1.15 

1.48

2.22 

1.40 

1.89 

1.97 

1.97 

2.30 

3.29

Sodium 

(Na)

19.35 

13.57 

10.70 

18.48 

12.70 

8.35

13.87 

17.65 

20.83 

18.74 

13.13 

9.61

15.44 

12.31 

18.92 

14.44 

14.18 

18.83 

27.83

Potassium 

<K)

0.24 

.18 

.16 

.23 

.17 

.15

.20 

.23 

.25 

.21 

.18 

.17

.14

.17 

.18 

.22

Bicarbonate 

(HCO,)

2.84 

2.20 

2.23 

2.90 

1.77 

1.84

2.21 

a2.19 

2.47 

2.25 

2.08 

1.97

1.87 

1.90 

b2.09 

2.11 

2.48 

b2.79 

C3.25

Sulfate 

(SOJ

1.69 

1.06 

.94 

1.17 

.58 

.96

1.62 

1.48 

1.37 

1.42 

1.08 

.90

.83 

1.77 

1.56 

1.29 

1.19 

1.44 

1.90

Chloride 

(Cl)

22.34 

16.02 

12.97 

23.41 

15.65 

10.12

15.96 

21.74 

26.62 

22.48 

14.75 

11.79

18.95 

14.36 

22.11 

16.89 

17.23 

23.55 

33.28

Fluoride 

(F)

0.00 

.00 

.01 

.01 

.01 

.01

.00 

.00 

.00 

.00 

.00 

.00

.00

.00 

.00 

.00

Nitrate 

(NO,)

0.03 

.03 

.03 

.03 

.06 

.04

.06 

.04 

.05 

.07 

.06 

.06

.07 

.05 

.05 

.05 

.04 

.08 

.06

a Includes 0.13 equivalent per million of carbonate (CO3 ). b Includes 0. 07 equivalent per million of carbon
LOWER MISSISSIPPI RIVER BASIN 71

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.ARKANSAS RIVER BASIN--Continued 

ARKANSAS RIVER AT VAN BUREN, ARK. Contin

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Mar. 1, 3-4, 1954 

Mar. 2, 5-7 .....

Mar. 8-10 .......

Mar. 11,18 ......

Mar. 12-14 ......

Mar. 15-17 ......

Mar. 19-23 ......

Mar. 24-26, 30 .. 

Mar. 27-28 ......

Mar. 29, 31 .....

Apr . 1 ..........

Apr. 2-3 ........

Apr. 4-6, 9......

Apr. 7-8 ........

Apr . 10 .........

Apr. 11-12 ......

Apr. 13-15 ......

Apr. 16-17, 19... 

Apr. 18, 20......

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

Apr. 25-26 ......

Apr. 27-28 ......

Apr. 29-30 ......

Runoff 

(acrefeet)

24,990 

28, 600 

15,230 

11,030 

20, 690

13,430 

26, 360 

34,350 

23, 680 

18,980

9,283 

18, 550 

32,230 

13,310 

7,021

15,530 

27,310 

48,480 

26, 580 

6,466

25, 170 

17,410 

12,970 

28.050

Silica 

(Si03) 

ppm

4.7 

6.0

4.4

5.0 

3.6 

4.0

6.5 

3.9 

3.3

1.8

4.7 

4.1 

3.3

Equivalents per million

Calcium 

(Ca)

5.89 

5. 29 

4.69 

5.09 

4.54

4.14 

5.29 

4.84 

3.34 

5.09

14.17 

8.38 

4.39 

5.09 

3.79

3.59 

2.74 

.85 

.85 

3.39

5.94 

3.89 

5.14 

3.70

Magnesium 

(Mg)

2.88 

2.38 

2.38 

3.45 

2.30

1.73 

2.88 

1.40 

1.89 

2.88

7.73 

3.12 

2.14 

2.71 

2.22

1.56 

1.32 

.82 

.90 

1.97

1.73 

2.63 

2.55 

2.14

Sodium 

(Na)

25.79 

22.66 

17.61 

22.35 

16.70

13.78 

22.96 

16.22 

14.61 

21.83

65.66 

38.05 

19.70 

25.00 

16.78

13.87 

8.78 

2.78 

4.04 

15.13

24.31 

17.70 

21.96 

15.65

Potassium 

(K)

0.21 

.20

.19

.17 

.24 

.18

.41 

.25 

.26

.19

.26 

.24 

.25

Bicarbonate 

(HCO,)

2.02 

2.03 

2.34 

2.64 

2.28

2.20 

2.26 

1.92 

1.57 

1.70

dl.87 

2.06 

b2.09 

d2.21 

e2.15

1.95 

1.41 

.79 

.59 

bl.35

1.67 

1.84 

f 1.98 

bl.73

Sulfate 

(S0<)

1.44 

1.52 

1.60 

1.77 

1.69

1.35 

1.62 

1.37 

1.35 

1.42

1.64 

2.04 

1.96 

2.39 

1.87

1.60 

.94 

.42 

.54 

1.31

1.79 

1.64 

1.77 

1.48

Chloride 

(Cl)

31.02 

25.95 

20.02 

25.95 

19.74

16.08 

26.79 

19.74 

17.20 

25.95

84.60 

46.25 

22.14 

28.06 

18.05

15.23 

10.58 

3.16 

4.46 

17.49

27.64 

21.29 

25.66 

18.05

Fluoride 

(F)

0.01 

.01

.01

.01 

.01 

.01

.02 

.02 

.02

Nitrate 

(NO,)

0.02 

.05 

.04 

.02

.05

.04 

.04 

.04 

.03 

.03

.11 

.09 

.07 

.06 

.06

.07 

.02 

.02 

.01 

.05

.07 

.06 

.06 

.07

b Includes0. 07 equivalent per million of carbonate (CO3 ). 

d Includes . 10 equivalent per million of carbdnate (CO3 ). 

e Includes . 17 equivalent per million of carbonate (CO3 ). 

f Includes . 03 equivalent per million of carbonate (CO3 ).
May 1-5, 1954 ...

May 6-10 ........

May 11-16 .......

May 12, 14-15....

May 13, 19 ......

May 17-18 .......

May 20-25 .......

May 26, 28-29,31

May 27, 30.......

June 1-3, 6-9 ....

June 4-5 .........

June 10-13, 17 ...

June 14-16, 18-19,

26 .............

June 20-25, 27-30

July 1-2, 9-10....

July 3-5, 7 ......

July 6, 8 ........

July 11, 16.......

July 12-15, 17 ...

July 18, 20-22,25

July 19, 26-29, 31

July 23-24, 30....

1,250,000

705, 300

135, 300

278, 300

125,000

69, 320

138, 700

143, 000

71,800

210,400

67, 440

111,600

95,440

131,800

47, 800

38, 120

13,860

22, 890

43, 060

33, 840

31,220

20, 230

6.6

6.6

5.0

__

4.4

4.3

 _

7.4

__

9.0

8.0

7.2

4.6

5.0

5.0

4.5

4.8

5.0

1.60

1.70

1.70

2.49 2 7Q . ty 2 9n 

. £t\f

3.69

4.24

4.04

3.99

3.44

3.49

3.34

3.84

3.39

2.89

2.99 3 94 

. tr*.

2.74

2.G4

2.60

3.04

.62

.59

.82

.68

1 Q9 1 . OA

1.07

1.32

1.56

2.55

1.73

1 QO i . O**

1.73

1.56

1.73

1.81

1.40

1.07

1 Q9 1 . OA

1.23

1.07

.90

1.32

3.09

2.44

4.00

5.26

8.22

6.70

9.65

11.13

15.65

20.79

12.65

16.92

12.87

14.91

15.22

11.44

8.04

11.61

7.13

5.83

4.96

8.78

.09

.09

.10

__

1^ .0

.15

--

.31

__.

.18

.15

.20

.20

99 . &&

.15

.12

.10

.15

1.36

1.56

1.41

1.59

1.70

1.64

2.21

2.29

2.15

2.16

2.06

2.11

2.23

2.13

1.85

1 7^ i. 1 O

2.03

1.70

1.92

2.00

2.16

a2.05

.35

.50

.67

.62

.79

.92

1.31

1.58

1.33

2.00

1.77

1.85

1.54

1.71

1.67

i aa i . O3

1.42

1.71

1.29

1.12

.96

1.04

3.47

2.54

4.51

6.06

10.01

7.33

10.86

12.69

18.61

22.00

13.11

18.47

14.38

16.50

16.58 U QQ . yy

8.46

19 97 i A . ftf

8.12

6.71

5.42

9.65

.02

.02

.03

__

.01

.01

__

.01

__

.01

.01

.02

.01

.01

.01

.01

.01

.01

.05

.03

.04

.03

.07

.06

.03

.06

.09

.09

.04

.02

.03

.03

.04

n

. \JO

.02

.01

.02

.03

.02

.03

a Includes 0.13 equivalent per million of carbonate (CO3 ). 
ARKANSAS RIVER BASIN Continued 

ARKANSAS RIVER AT VAN BUREN, ARK. Conti

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Aug. 1, 5, 7,1954 

Aug. 2-4, 6......

Aug. 12, 18......

Aug. 13 .........

Aug. 14-17 ......

Aug. 19-26 ......

Aug. 27-28 ......

Aug. 29-31 ......

Sept. 1-4 ........

Sept. 5-10 .......

Sept. 11-19 ......

Sept. 20-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

15,510 

15,770 

17,490 

8,747

5,157 

18, 880 

37,410 

8,489 

8,469

8,688 

10,710 

17,950 

14, 350

6,134,990

Silica 

(Si02) 

ppm

2.4 

5.9

2.9 

6.6

4.7

5.2 

1.9 

3.1 

5.2

Equivalents per million

Calcium 

(Ca)

2.64 

2.94 

2.45 

2.70

4.09 

2.94 

2.40 

3.29 

2.59

3.04 

3.59 

3.54 

3.74

2.99

Magnesium 

(Mg)

0.90 

1.15

.77 

.90

1.56 

.99 

.73 

1.56 

.99

.90 

1.32 

1.40 

1.48

1.23

Sodium 

(Na)

4.96 

7.04 

4.26 

6.26

12.31 

8.65 

5.09 

11.39 

6.87

6.13 

8.83 

8.83 

10.44

9.61

Potassium 

(K)

0.15 

.11

.15 

.10

.14

.13 

.17 

.15 

.17

Bicarbonate 

(HC03)

2.13 

b2.22 

2.02 

a2.08

e2.05 

1.87 

1.93 

dl.97 

b2.07

2.39 

2.74 

2.61 

2.62

1.74

Sulfate 

(S0<)

0.67 

.98 

.54 

.52

.77 

.67 

.44 

.79 

.62

.64 

.92 

1.10 

.87

0.94

Chloride 

(Cl)

5.78 

8.04 

4.88 

7.05

15.23 

10.10 

5.87 

13.54 

7.76

6.99 

9.87 

9.73 

12.13

11.11

Fluoride 

(F)

0.01 

.01

.01 

.01

.01

.02 

.02 

.01 

.02

Nitrate 

(NO,)

0.00 

.03 

.02 

.01

.00 

.01 

.01 

.01 

.02

.02 

.01 

.02 

.02

0.04

a Includes 0.13 equivalent per million of carbonate (CO3 ). 

b Includes .07 equivalent per million of carbonate (CO3). 

d Includes .10 equivalent per million of carbonate (CO3 ). 

e Includes .17 equivalent per million of carbonate (CO3 ).
ARKANSAS RIVER BASIN

CANADIAN RIVER NEAR WHITEFIELD, OKLA

LOCATION. At gaging station at bridge on State Highway 2, three-quarters of a mile n

5i miles upstream from Snake Creek, and at mile 18.8.

DRAINAGE AREA. 47,576 square miles, of which 9,700 square miles is probably noncontri

RECORDS AVAILABLE.--Chemical analyses: September 1944 to February 1945, September 194

Water temperatures: September 1944 to February 1945, September 1946 to September 1

EXTREMES, 1953-54. Specific conductance: Maximum daily, 17,700 micromhos Mar. 28; mi

Percent sodium: Maximum, 77 Apr. 21-24; minimum, 49 May 2, 7. 

EXTREMES, 1944-45, 1946-54.--Specific conductance: Maximum daily, 18,900 micromhos De

micromhos Jan. 2, 1948.

Percent sodium: Maximum, 80 Nov. 6-14, Dec. 21-23, 1947; minimum, 37 Feb. 3-5. 1948

REMARKS. Values reported for dissolved solids are residue on evaporation at 180 C. R

daily samples available in district office at Oklahoma City, Okla. Records of disc

September 1954 given in WSP 1341.

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-3, 1953.. .. 

Oct. 4-5.... ......

Oct. 6-7..........

Oct. 8.. ..........

Oct. 9-10.........

Oct. 11-12........

Oct. 13-14 .......

Oct. 15-16........

Oct. 17-18. .......

Oct. 19-20........

Oct. 21-22........

Oct. 23...........

Oct. 24...... .....

Oct. 25...........

Oct. 26-27... .....

Oct. 28...........

Oct. 29-31 ........

Runoff 

(acrefeet)

569 

3,967 

6,728 

1,174 

1,589

1,023 

734 

599 

488 

430 

488

1,087 

30,740 

30,940 

65,850 

25, 980 

43,500

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

13.17 

5.74 

3.59 

6.54 

10.68

10.98 

13.77 

15.57 

20.31 

17.76 

15.57

19.21 

11.48 

4.69 

3.99 

3.79 

3.09

Magnesium 

(Mg)

5. 13 

2.22 

1.41 

2.86 

4.52

4.52 

5.53 

6.03 

7.89 

6.84 

6.23

7.39 

4.62 

1.83 

1.49 

1.33 

1.23

Sodium 

(Na)

48.70 

19.79 

12.31 

23.96 

41.09

42.61 

53.49 

60.44 

80.45 

68.70 

60.44

76.10 

42.48 

16.26 

13.05 

11.28 

7.70

Potassium 

(K)

Bicarbonate 

(HCO,)

2.79 

1.54 

1.23 

1.39 

1.77

1.85 

2.00 

2.06 

2.18 

2.39 

2.47

2.31 

2.36 

1.84 

1.70 

1.85 

1.88

Sulfate 

(SOJ

0.71 

.37 

.40 

.46 

.71

.69 

.62 

.56 

.65 

.62 

.62

.67 

1.85 

.46 

.48 

.31 

1.19

Chloride 

(Cl)

64.30 

26.23 

15.74 

31.87 

55.00

56.41 

71.07 

80.38 

107.45 

91.66 

80.38

101.25 

55.00 

20.87 

16.36 

14.24 

9.08

Fluoride 

(F)

Nitrate

(Ncg

0.01 

.02

.07 

.03 

.05 

.04
ARKANSAS RIVER BASIN Continued 

CANADIAN RIVER NEAR WHITEFIELD, OKLA. Co

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Nov. 1-3, 1953 .... 

Nov. 4-6 .........

Nov. 8-10. ........

Nov. 11-13 .......

Nov. 14-16. .......

Nov. 17-20. .......

Nov. 21. ..........

Nov. 22-27. .......

Nov. 28-30. .......

Dec. 1-3..........

Dec. 4 ...........

Dec. 5. ...........

Dec. 6-10. ........

Dec. 11. ..........

Dec. 12-16. .......

Dec. 17-18. .......

Dec. 19-20 .......

Dec. 21-25. .......

Dec. 26-31. .......

Jan. 1-10, 1954 . . . 

Jan. 11-16........

Jan. 17-20........

Jan. 21........ ...

Jan. 22-23. .......

Jan. 24...... .....

Runoff 

(acrefeet)

17,790 

23,290 

9,798 

9,164 

4,566

3,550 

9,251 

27,570 

49,350 

5,766

7,087 

22,610 

24,400 

34,210 

3,610

13, 200 

3,062 

2,672 

5,631 

5,669

7,928 

6,149 

12,610 

7,517 

18,430 

4,304

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

3.89 

5.54 

7.63 

9.53 

8.78

11.48 

13.87 

10.63 

4.74 

6.39

9.68 

4.49 

7.04 

4.19 

4.89

6.24 

8.48 

10.73 

14.92 

20.21

21.71 

21.01 

9.08 

12.72 

2.50 

3.69

Magnesium 

(Mg)

1.89 

2.71 

3.62 

4.36 

3.87

5.35 

6.41 

4.28 

2.30 

2.88

4.28 

1.89 

2.96 

1.89 

2.14

2.80 

3.87 

4.85 

6.58 

8.88

9.54 

9.13 

4.11 

5.67 

1.07 

1.58

Sodium 

(Na)

10.57 

18.09 

27.57 

36.05 

32.09

43.14 

55.66 

40.61 

15.83 

22.48

34.66 

14.22 

26.09 

14.26 

16.52

21.92 

30.53 

38.70 

53.05 

75.66

84.79 

84.36 

35.61 

51.75 

8.09 

13.26

Potassium 

(K)

Bicarbonate

(Hccg

2.20 

2.16 

1.93 

1.84 

2.46

2.74 

2.47 

1.72 

1.90 

1.98

2.41 

1.75 

1.62 

1.62 

1.64

2.03 

2.46 

2.87 

3.20 

3.62

3.08 

3.08 

1.77 

1.93 

.92 

.93

Sulfate 

(SOJ

1.69 

1.50 

1.00 

.81 

1.02

1.23 

1.17 

.50 

.69 

.71

.98 

.60 

.46 

.54 

.52

.65 

.81 

.90 

1.02 

1.21

1.19 

1.06 

.73 

.73 

.31 

.29

Chloride 

(Cl)

12.13 

21.86 

35.25 

47.38 

40.89

56.41 

71.07 

52.18 

19.74 

29.33

45.13 

17.77 

33.84 

18.19 

21.15

28.77' 

39.77 

50.77 

73.33 

101. 25

112.53 

108. 30 

46.54 

66.28 

10.29 

17.06

Fluoride 

(F)

Nitrate

(Ncg

0.06 

.06

.04

.04

.04 

.07

.07

.04 

.06
Jan. 25, 1954 .....

Jan. 26-29........

Jan. 30...........

Jan. 31...........

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

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

Feb. 21-23. .......

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

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

Mar. 11-13 .......

Mar. 14-20 .......

Mar. 21-23 .......

Mar. 24 ..........

Mar. 25-26 .......

Mar. 27. ..........

Mar. 28-29 .......

Mar. 30 ..........

Mar. 31 ..........

Apr. 1-3..........

Apr. 4-10 ........

Apr. 11-15........

Apr. 16-20. .......

Apr. 21-24 .......

Apr. 25-28. .......

Apr. 29 ..........

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

5,316

29, 950

3,273

2,519

13,800

11,180

12,910

9,473

8,313

1,698

2,872

2,168

1,035

5,494

3,154

8,489

2,916

2,261

3,993

4,306

3,197

4,895

3,154

3,251

2,241

24,790

9.28

4.69

7.88

11.88

14.02

16.17

8.68

19.61

14.07

17.07

22.65

23.15

14.57

7.49

9.53

30.09

17.17

10.08

9.68

12.77

15.87

21.11

22.70

17.71

13.17

7.98

3.95

2.06

3.45

5.18

6.25

6.23

3.45

7.89

6.33

6.93

8.95

9..45

5.83

2.61

3.77

11.68

6.03

4.02

4.42

5.93

6.93

7.69

7.90

7.29

5.63

3.62

36.92

17 83

31.05

49.57

59.14

67.40

34.79

83.49

56.96

70.44

96.97

100. 88

60.44

27.74

38.79

127. 84

70.44

40.57

38.70

54.79

68.27

92.62

100. 88

75.66

54.35

31.96

1.34

1.02

1.47

1.57

1.97

2.13

1.11

1.90

2.21

1.21

1.66

1.54

1.72

1.56

1.33

1.97

2.06

2.39

2.43

1.80

1.84

1.41

1.39

1.82

a2.10

bl.51

.52

.37

.60

.71

.96

1.71

.69

1.12

1.02

.98

1.02

1.00

.69

.42

.54

1.06

.87

.79

.83

1.02

.92

1.00

1.08

1.17

.87

.67

47.95

22.70

39.77

64.30

75.58

87.99

45.69

108. 30

73.33

94.48

126.35

133.40

78.40

36.66

51.33

168. 37

92.51

52.18

49.36

68.25

88.84

118.17

128.04

97.02

69.94

41.18

.04

.04

.06

a Includes 0.13 equivalents per million of carbonate (CO,), 

b Includes 0. 07 equivalents per million of carbonate (CO,).
ARKANSAS RIVER BASIN Continued

CANADIAN RIVER NEAR WHITEFIELD, OKLA. Co

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

May 1, 1954 ......

May 2, 7..........

May 3-6 ..........

May 8-10 .........

May 11, 18-19.....

May 12, 15-17.....

May 13-14 ........

May 20 ...........

May 21-26 ........

May 27 ...........

May 28 ...........

May 29-31 ........

June 13-17 ........

June 19-20 ........

June 21 ...........

Runoff 

(acrefeet)

102,700 

277,300 

438,700 

56,230 

59,310 

103,000

110,300 

8,053 

37,070 

30,940 

26,980 

50,380

6,902 

26,340 

7,458 

8,648 

6,605

4,443 

3,372 

15,270 

8,112 

7,121 

1.587

Silica 

(SiOg) 

ppm

Equivalents per million

Calcium 

(Ca)

5.04 

2.50 

1.95 

2.79 

4.24 

3.09

2.89 

6.04 

7.24 

4.94 

8.78 

4.69

6.89 

5.69 

2.20 

3.64 

6.29

4.44 

6.49 

9.48 

13.47 

10.58 

11.08

Magnesium 

(Mg)

1.52 

1.10 

.55 

1.01 

1.68 

1.15

1.03 

2.56 

3.36 

2.22 

3.52 

2.15

2.83 

2.55 

.68 

1.60 

2.91

1.64 

2.71 

4.12 

5.43 

4.52 

4.92

Sodium 

(Na)

15.39 

4.78 

3.22 

5.87 

11.09 

7.44

5.65 

16.35 

21.83 

12.39 

28.83 

12.09

21.61 

17.09 

3.96 

9.74 

21.65

15.74 

23.92 

34.66 

52.18 

41.74 

45.66

Potassium 

(K)

Bicarbonate 

(HCO,)

1.80 

1.57 

1.52 

1.67 

2.21 

1.87

1.98 

c2.79 

2.82 

2.46 

d2.15 

2.36

2.46 

2.67 

1.67 

1.80 

b2.13

1.70 

bl.91 

2.43 

1.77 

1.82 

a2.03

Sulfate 

(SOJ

0.14 

.40 

.44 

.64 

.61 

.44

.44 

1.64 

2.12 

2.38 

1.96 

2.31

2.29 

2.46 

.44 

1.15 

.92

.79 

1.19 

1.17 

.83 

.90 

.92

Chloride 

(Cl)

19.74 

6.43 

3.78 

7.56 

13.82 

9.36

7.33 

20.31 

27.36 

14.52 

36.38 

13.96

25.52 

19.60 

4.79 

12.41 

27.36

19.04 

28.77 

44.56 

69.94 

55.00 

59.23

Fluoride 

(F)

Nitrate 

(NO,)

0.08 

.05 

.03 

.05 

.04 

.04

.04 

.05 

.03 

.07

.05

.18 

.07 

.10 

.08 

.04

.04

a Includes 0.13 equivalents per million of carbonate (CO,), 

b Includes 0. 07 equivalents per million of carbonate (CO,), 

c Includes 0. 30 equivalents per million of carbonate (CO,), 

d Includes 0.10 equivalents per million of carbonate (CO,).
June 22, 1954 .....

June 23-24 .......

June 25. ..........

June 27-30... .....

July 1 ............

July 2 ............

July 3 ............

July 4-8 ..........

July 9 ............

July 10 ...........

July 11 ...........

July 12-14 ........

July 15-19 ........

July 20 ...........

July 21-25.........

July 26-26 ........

July 29-31 ........

Aug. 1-3. .........

Aug. 4-6. .........

Aug. 7-8 .........

Aug. 10 ..........

Aug. 11-15. .......

1,396

2,888

1,119

895

2,664

678

565

508

2,396

500

405

357

893

1,119

234

885

395

361

450

526

553

260

222

659

13.07

15.47

14.17

12.67

12.18

11.68

9.98

11.98

13.47

11.38

10.28

10.08

11.98

14.07

6.78

14.27

14.87

13.97

13.57

18.71

21.26

23.25

21.26

20.66

5.53

6.73

6.03

5.93

5.62

5.72

4.82

6.42

6.93

6.52

5.52

5.32

6.52

7.53

4.52

7.33

7.53

6.83

6.03

8.49

10.94

14.55

8.54

14.54

53.49

67.40

59. 57

54.35

47.40

45.66

34.27

45.66

50.44

43.48

40.70

41.79

45.66

54.79

30.05

53.92

59.96

51.31

49.57

73.49

86.10

94.79

88.27

86.10

a 2. 03

a 1.93

e2.23

2.06

2.47

1.64

2.49

2.26

2.43

2.36

1.64

1.74

2.46

2.39

2.33

2.43

2.33

2.49

1.90

2.29

2.05

1.95

1.77

2.08

1.23

1.21

2.29

2.29

2.12

1.73

1.39

1.58

1.25

2.79

2.23

1.81

1.42

1.00

.62

.75

.73

.65

.58

.69

.81

.87

1.62

1.42

69.10

86 ..02

75.58

68.25

61.48

61.77

45.13

59.51

67.69

55.28

51.05

53.02

59.79

70.51

40.33

71.92

75.87

67.97

66.28

97.02

115.07

127.76

117.89

117.89

a Includes 0.13 equivalents per million of carbonate (COS). 

e Includes 0. 20 equivalents per million of carbona
ARKANSAS RIVER BASIN Continued

CANADIAN RIVER NEAR WHITEFIELD, OKLA. Co

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Aug. 16-18, 1954. . 

Aug. 19-20. .......

Aug. 21-31 .......

Sept. 1-4..........

Sept. 5-10 ........

Sept. 11-17. .......

Sept. 18-20 .......

Sept. 21-29 .......

Total or 

weighted average

Runoff 

(acrefeet)

216 

115 

534

182 

202 

180 

71 

200 

48

2,151,000

Silica 

(SiOs) 

ppm

Equivalents per million

Calcium 

(Ca)

18.91 

16.77 

13.97

11.28 

9.18 

8.18 

7.49 

7.49 

5.69

5.09

Magnesium 

(Mg)

9.69 

7.23 

6.83

7.52 

5.02 

3.52 

3.91 

3.51 

3.01

2.06

Sodium 

(Na)

76.97 

66.10 

53.05

37.66 

30.48 

25.48 

21.70 

20.22 

14.44

16.39

Potassium 

(K)

Bicarbonate 

(HCOS)

2.56 

2.69 

2.82

2.52 

2.51 

2.85 

d2.77 

d3.12 

d2.44

1.82

Sulfate 

(SOJ

1.12 

.87 

.60

.44 

.35 

.33 

.33 

.35 

33

0.73

Chloride 

(Cl)

102.66 

88.84 

69.10

53.59 

41.74 

33.28 

30.46 

28.20 

20.45

20.93

Fluoride 

(F)

Nitrate 

(NOJ

0.03

__

d Includes 0.10 equivalents per million of carbonate (COS).
RED RIVER BASIN

RED RIVER AT DENISON DAM NEAR DENISON, T

LOCATION. Immediately below dam on Red River, 1.7 miles upstream from Sand Creek, 3 

Bryan County, Okla., and 4 miles northwest of Denison, Grayson County.

DRAINAGE AREA. 39,719 square miles above dam, 39,777 square miles above gaging statio

contributing. 

RECORDS AVAILABLE. Chemical analyses: May 1944 to September 1954.

Water temperatures: October 1945 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 2,090 micromhos Nov. 6; min

Percent sodium: Maximum, 58 Nov. 1-30; minimum, 54 June 1-30. 

EXTREMES, 1944-54.--Specific conductance: Maximum daily, 3,520 micromhos Aug. 14, 194

Percent sodium: Maximum, 59 July 3-10, 1944; minimum, 31 Nov. 1-10, 1945.

REMARKS.--Values reported for dissolved solids are residues on evaporation unless othe

daily samples available in district office at Austin, Tex. Records of discharge fo

year October 1953 to September 1954 given in WSP 1341. No appreciable inflow betwe

heavy local rains.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-31, 1953 .. 

Nov. 1-30 .......

Dec. 1-31 .......

Jan. 1-31, 1954 .. 

Feb. 1-28 .......

Mar. 1-31 .......

Apr. 1-30 .......

May 1-3L ........

July 1-3L ........

Aug. 1-31 .......

Sept. 1-30 .......

Total or 

weighted average

Runoff 

(acrefeet)

135,000 

70, 560 

136,600 

123,600

121,900 

153,300 

161,600 

762,400

568, 500 

283,400 

196,000 

146, 500

2,859,360

Silica 

(SiOJ 

ppm

11 

8.8 

9.0 

8.2

12 

12 

9.8 

9.5

15 

15 

13 

14

12

Equivalents per million

Calcium 

(Ca)

4.69 

4.99 

4.89 

4.69

4.54 

4.59 

4.59 

4.54

4.19 

4.19 

4.24 

4.29

4.44

Magnesium 

(Mg)

2.30 

2.22 

2.38 

2.30

2.06 

2.06 

2.14 

2.14

1.81 

1.73 

1.73 

1.73

1.97

Sodium 

(Na)

8.70 

10.00 

9.48 

8.83

8.13 

8.26 

8.26 

8.39

7.13 

7.17 

7.52 

7.39

8.00

Potassium 

(K)

0.15 

.14 

.14

.14 

.14

.13

__

Bicarbonate 

(HC03)

2.08 

2.02 

2.03 

2.05

2.10 

2.10 

2.10 

2.15

2.11 

2.10 

2.05 

2.08

2.10

Sulfate 

(SOJ

4.54 

4.98 

5.29 

4.71

4.25 

4.29 

4.27 

4.27

3.68 

3.71 

3.73 

3.79

4.16

Chloride 

(Cl)

9.36 

10.44 

9.81 

9.45

8.40 

8.52 

8.52 

8.74

7.76 

7.76 

7.56 

7.61

8.43

Fluoride 

(F)

0.03 

.02 

.03

.03 

.03 

.02 

.03

.02 

.02 

.01 

.02

0.02

Nitrate 

(NOS)

0.02 

.02 

.02 

.02

.02 

.02 

.03 

.02

.04 

.03 

.02 

.02

0.03

a Sum of determined constituents.
PART 8. WESTERN GULF OF MEXICO BASIN

SABINE RIVER BASIN 

SABINE RIVER NEAR RULIFF, TEX.

LOCATION.--At gaging station at bridge on State Highway 235, 2.4 miles north of Ruliff

City Southern Railway Bridge, 4.5 miles downstream from Cypress Creek and at mile 4

DRAINAGE AREA. 9,440 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946, October 1947 t

Water temperatures: October 1947 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 588 micromhos Dec. 21; minim

Percent sodium: Maximum, 78 Dec. 16-22; minimum, 56 Mar. 10-20. 

EXTREMES, 1945-46, 1947-54.--Specific conductance: Maximum daily, 774 micromhos Dec. 

Percent sodium: Maximum, 86 Dec. 26-27, 1948; minimum, 27 June 3-7, 10, 1946.

REMARKS. Values reported for dissolved solids are residue on evaporation unless other

daily samples available in district office at Austin, Tex. Records of discharge fo

in WSP 1342.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-2, 10-20, 

1953 ...........

Oct. 3-9 ........

Oct. 21-31 ......

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

Dec. 1-15 .......

Dec. 16-22 ......

Dec. 23-31 ......

Jan. 1-11, 15-17, 

1954 ...........

Jan. 12-14, 18-23 

Jan. 24-31 ......

Runoff 

(acrefeet)

25, 230 

15,850 

20, 060 

19,850 

21,160 

28, 150

142, 800 

69, 100 

93, 420

142, 000 

110,400 

121.700

Silica 

(Si02) 

ppm

23 

21 

22 

20 

21 

20

11 

14 

13

14 

15 

13

Equivalents per million

Calcium 

(Ca)

0.36 

.45 

.32 

.32 

.34 

.34

.35 

.65 

.41

.35 

.38 

.40

Magnesium 

(Mg)

0.25 

.27 

.21 

.20 

.23 

.23

.21 

.40 

.23

.21 

.31 

.30

So- Potasdium sium 

(Na) (K)

1.27 

2.33 

1.04 

1.21 

1.61 

1.78

1.28 

3.76 

.90

.88 

1.61 

1.30

Bicarbonate 

(HC03)

0.59 

.52 

.56 

.51 

.54 

.52

.29 

.29 

.36

.29 

.26 

.23

Sulfate 

(S0<)

0.14 

.18 

.12 

.13 

.14 

.17

.23 

.52 

.29

.27 

.44 

.46

Chloride 

(Cl)

1.13 

2.34 

.87 

1.07 

1.49 

1.66

1.30 

3.98 

.87

.87 

1.58 

1.30

Fluoride 

(F)

Nitrate 

(NO,)

0.02 

.01 

.02 

.02 

.01 

.00

.02 

.02 

.02

.01 

.02 

.01

a Sum of determined constituents.
Feb. 1-8, 1954...

Feb. 19-28 ......

Mar. 1-9 ........

Mar. 10-20 ......

Mar. 21-31 ......

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

Apr. 11-16, 26-30 

Apr. 17-25 ......

May 1-3, 11-14, 

16-20 ..........

May 4-10, 15 .... 

May 21-31 .......

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 ......

Total or 

weighted average

126, 500 

118,800

74, 380

79, 340

60, 100

53, 080

44,210

88,820 

228, 700

298, 700

323, 300 

341,200

127, 500

56, 130

34, 890

14,850

13, 120

13,740

8,690

9,190

7,370

6,820

6,530

2,966,000

12 

15

16

16

19

20

18

14 

9.0

11

9.6 

12

on

94

24

99

22

91

20

20

20

21

oo

20

14

.48 

.65

.60

.55

.55

.55

.55

.49

OK

.27

.19 

.31

.50

.55

.55

.55

.55

.50

.45

.47

.45

.44

.44

.35

0.41

.30 

.34

07

OQ

OQ

QC

.41

.35 

.15

1 ft

.14 

.18

9<i

.17

3Q

07

.35

.35

.26

Oft

.26

.27

.27

.23

0.24

1.11 

1.32 1

EQ

1.71

1 10

1.58

1.66

1.69 

.65

.75

.49 

.75

1.07

1 7O

1.50

1.41

1.30

i 04

1 94

1 29

1 OQ

1.41

1.47

1.45

1.13

.43 

.51

CO

.38

49

EO

.56

.44

OQ

.20

.20 

.23

.61

.64

.69

oo

.87

.84

79

79

.77

79

79

.80

0.36

.42 

.54

.52

.54

.44

.42

.44

.50 

oo

.21

.13 

.25

.29

01

.29

.25

19

.17

.15

.16

.14

.13

1 7

.11

0.29

1.02 1 94

1.44

1 79

1.18

1 ^0 I

ftl

1.58

7O

73.

.45 

.73

.87

1.47

1.38

1 94

1.10

1 11

1.07

1.07

1.18

1 94

1.10

1.07

.02 

.02

.01

.01

.02

.02

.01

.01 

.01

.06

.04 

.03

.05

.02

.02

.02

.04

.04

.01

.02

.02

.02

.02

.02

0.03

a Sum of determined constituents.
NECHES RIVER BASIN 

NECHES RIVER AT EVADALE, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 96, 200 feet upstream from Gulf

Evadale, Jasper County, 600 feet downstream from Mill Creek, 15 miles upstream from 

DRAINAGE AREA. 7,908 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1954.

Water temperatures: October 1947 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 328 micromhos Aug. 28; minimu

Percent sodium: Maximum, 71 Nov. 21-30; minimum, 54 July 1-10. 

EXTREMES, 1947-54. Specific conductance: Maximum daily, 415 micromhos Nov. 29, 1952; 

Percent sodium: Maximum, 74 Dec. 21-31, 1948; minimum, 14 June 4-18, 1950. 

REMARKS. Values reported for dissolved solids are residues on evaporation unless other

conductance of daily samples available in district office at Austin, Tex. Records o

September 1954 given in WSP 1342.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

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

Nov. 11-20 ......

Nov. 21-30 ......

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1954 ..

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

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

Feb. 11-19 ......

Feb. 20-28 ......

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

Mar. 11-20 ......

Mar. 21-31 ......

Runoff 

(acrefeet)

14,030 

6,070 

8,840 

8,570 

8,120 

8,770

11,720 

16,160 

77,060 

47,880 

102,900 

76, 260

64, 130 

45,860 

36, 240 

46, 000 

35,350 

24,940

Silica 

(SiO,,) 

ppm

25 

28 

26 

26 

26 

24

15 

15 

13 

16 

16 

14

18 

20 

18 

17 

16 

16

Equivalents per million

Calcium 

(Ca)

0.45 

.50 

.55 

.50 

.50 

.45

.45 

.39 

.32 

.36 

.36 

.35

.43 

.47 

.48 

.50 

.50 

.50

Magnesium 

(Mg)

0.30 

.33 

.33 

.36 

.32 

.30

.22 

.21 

.24 

.25 

.26 

.25

.34 

.40 

.39 

.40 

.40 

.37

So- Potasdium sium 

(Na) (K)

1.07 

1.08 

1.11 

1.23 

1.70 

1.82

1.24 

1.15 

1.08 

1.09 

1.04 

.83

1.12 

1.27 

1.22 

1.29 

1.40 

1.29

Bicarbonate 

(HCO,)

0.70 

.80 

.70 

.69 

.72 

.72

.56 

.56 

.33 

.29 

.26 

.28

.31 

.31 

.33 

.38 

.43 

.46

Sulfate

(soj

0.21 

.21 

.23 

.20 

.21 

.23

.27 

.25 

.33 

.33 

.37 

.37

.50 

.54 

.54 

.54 

.56 

.48

Chloride 

(Cl)

0.87 

.85 

1.02 

1.16 

1.55 

1.58

1.04 

.90 

.93 

1.04 

.99 

.73

1.04 

1.24 

1.18 

1.24 

1.27 

1.18

Fluoride 

(F)

0.02 

.02 

.01 

.02 

.02 

.02

.02 

.02 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.02 

.03 

.03

Nitrate 

(NO,)

0.02 

.03 

.03 

.02 

.02 

.02

.02 

.02 

.02 

.01 

.01 

.02

.01 

.02 

.01 

.01 

.01 

.01

B

a Sum of determined constituents.
Apr. 1-10, 1954.. 

Apr. 11-15, 21-22 

Apr. 16-20, 23-30 

May 1-2, 7-11 ... 

May 3-6, 12-17... 

May 18-31 .......

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 ......

Total or 

weighted average

32,930 

49,450 

102, 600 

103, 200 

129, 100 

208, 600

80, 230

49 llfl

97 4>ifl

29, 670

21,760

18, 600

7,520

13,520

10, 120

5,070

5,490

4,050

1,531,000

17 

15 

13 

20 

16 

16

17

18

1Q

16

16

17

99

99

99

28

26

24

17

.50 

.50 

.39 

.40 

.32 

.31

.33

.38

.45

.50

.55

.60

.60

.65

.65

.75

7K

.75

0.40

.39 

.36 

.34 

.25 

.19 

.19

9A.

.26

.28

.35

.36

9.Q

QC

OQ

OQ

.47

.43

.43

0.28

1.45 

1.44 

.92 

1.01 

.78 

.74

92

90

.98

1.01

1 19

1.38

1

9A

1.56 1

QO

1.56

1.56

1.71

1.04

.46 

.48 

.41 

.39 

.33 

.28

.38

.46

.62

.67

.74

.82

.84

1.00

1 1 ^

1.33

1 9.Q

1.49

0.41

.54 

.50 

.33 

.31 

.27 

.29

9Q

9Q

.27

29

OQ

29

.27

OR

OO

.18

.16

.15

0.35

1.30 

1.27 

.87 

.87 

.62 

.59

.76

70

.76

.85

i no

1 91

1.16

1 9^

1.47

1.24

1.16

1.21

0.90

.02 

.02 

.02 

.04 

.04 

.04

.04

f\A

.04

no

AQ

H*}

.01

.01

.01

.02

n.9

.02

0.03

.02 

.03 

.02 

.05 

.04 

.04

n.9

O.9

n.9

0.9

09

0.9

n9

.01

n9

.01

.01

.02

0.02

a Sum of determined constituents.
TRINITY RIVER BASIN

TRINITY RIVER AT ROMAYOR, TEX.

LOCATION. At gaging station at bridge on State Highway 105, 1.9 miles south of Romayor

Gulf, Colorado and Santa Fe Railway bridge, 4.1 miles downstream from Big Creek, and 

DRAINAGE AREA. 17,192 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to November 1949, February 1950 to 

Water temperatures: February 1950 to September 1951, April to September 1954.

EXTREMES, 1953-54. Specific conductance: Maximum daily, 3,170 micromhos Nov. 7; minim

Percent sodium: Maximum, 86 Nov. 7; minimum, 36 May 21-31. 

EXTREMES, 1945,50, 1953-54. Specific conductance: Maximum daily, 3,170 micromhos Nov. 

Percent sodium: Maximum, 86 Nov. 7, 1953; minimum, 23 June 11-20, 1946. 

REMARKS. Values reported for dissolved solids concentrations less than 1,000 ppm are r

than 1,000 ppm are sums of determined constituents unless otherwise noted. Records 

in district office at Austin, Tex. Records of discharge for water year October 1953 

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-3, 1953 .... 

Oct. 4-8, 28-30 . . . 

Oct. 9-27, 31 .....

Nov. 1-3. .........

Nov. 4, 9, 21-27 .. 

Nov. 5-6, 8.......

Nov. 7. ...........

Nov. 10-15, 19-20. . 

Nov. 16-18, 28-30 .

Dec. 1-4, 9, 20 ... 

Dec. 5-8, 10-19, 

21, 31...........

Dec. 22-30. .......

Jan. 1-10, 18-20, 

22, 24, 1954.....

Jan. 11-17 

Jan. 21...........

Jan. 23, 25-31 ....

Runoff 

(acrefeet)

1,590 

19,110 

16,010 

13,750

22,090 

8,690 

2,480 

13,670 

11,130

42,210

159,600 

67,300

70,790 

27,010 

12,730 

50,400

Silica 

(SiOa) 

ppm

17 

18 

20 

7.8

15 

17 

28 

16 

14

14

12 

10

21 

21 

21 

19

Equivalents per million

Calcium 

(Ca)

2.94 

2.40 

2.30 

.50

2.20 

2.79 

3.49 

1.80 

1.35

1.95

1.30

.75

1.65 

1.40 

2. 

1.65

Magnesium 

(Mg)

0.55 

.43 

.39 

.13

.46 

.65 

1.07 

.30 

.35

.42

.30 

.21

.40 

.30 

74 

.30

Sodium 

(Na)

14. 

6. 

4.

7. 

16. 

27. 

4. 

3.

5. 

2.

3. 

2. 

8. 

1.

Potassium 

(K)

32 

75 

48 

81

40 

89 

32 

46 

06

83

06 

92

36 

63

79 

73

Bicarbonate 

(HC03)

3.69 

2.98 

2.79 

.57

2.38 

3.38 

3.54 

2.20 

1.59

1.82

1.25

.77

1.44 

1.43 

2.16 

1.72

Sulfate 

(SOJ

1.62 

1.23 

.81 

.29

1.52 

2.27 

2.83 

1.08 

.83

.96

.65 

.40

.94 

.54 

1.75 

.77

Chloride 

(Cl)

12.47 

5.36 

3.55 

.56

5.98 

14.44 

25.16 

3.13 

2.23

5.33

1.69 

.68

2.96 

2.31 

7.39 

1.10

Fluoride 

(F)

Nitrate 

(NOS)

0.03 

.01 

.02 

.02

.18 

.24 

.35 

.15 

.11

.09 

.07

.07 

.05 

.23 

.09

a Sum of determined constituents.
Feb. 1-4, 21-26, 

1954 ............

Feb. 5-13. ........

Feb. 14-20, 27.... 

Feb. 28, Mar. 2-8, 

13-14 ...........

Mar. 1, 9-12, 25, 

28-31 ...........

Mar. 15-24, 26-27.

Apr. 1-10, 19-20.. 

Apr. 11, 17, 26-30 . 

Apr. 12-16, 18, 

21-25 ...........

May 1-4, 9, 17-20 . 

May 5-8, 13-16 . . . 

May 10-12 ........

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

June 1-11.... .....

June 12-25. .......

June 26-30. .......

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

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

July 21-30 ........

July 31 ...........

26,620

21,880

15,840 

17,020

14,460

15,430

21,500 

13,930

36,080

110,000 

148,700 

14, 880

109,900

20,430

16,790

7,320

6,230

5,030

10, 800

8.730

24

32

32 

19

15

21

14 

12

11

15 

9.8 

16

16

26

19

11

13

14

14

6.4

1.80

2.25

2.40 

2.40

2.69

2.30

2.54 

1.95

2.00

1.65 

.85 

2.15

1.85

2.45

2.74

2.69

2.99

2.45

2.54

.53

.56

.54 

.57

.62

.58

.68 

.44

.54

.37 

.23 

.58

.35

.52

.62

.61

.66

.68

.61

72

2.14

3.94

4.26 

5.76

7.68

5.36

7.28 

3.25

5.37

2.09 

1.09 

5.88

1.25

2.11

4.03

6.08

7.51

9.28

7.69

1.67

2.06

2.25 

2.15

2.46

2.25

2.56 

1.95

2.13

1.67 

1.16 

1.93

2.44

2 so

2.64

2.69

2.67

2.97

.67

.85

1.35

1.42 

1.48

1.62

1.25

1.75 

.98

1.42

.62 

.10 

1.25

.71

.87

1.10

1.58

1.71

1.92

1.89

3.22

3.41 

5.02

6.83

4.68

6.09 

2.62

4.23

1.75 

.90 

5.36

.90

1.72

3.67

5.13

6.71

8.12

5.92

.59

a Sum of determined constituents.
TRINITY RIVER BASIN--Continued

TRINITY RIVER AT ROMAYOR, TEX. Continue

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Aug. 1-4, 1954.... 

Aug. 5-10 ........

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

Aug. 21-31 .......

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

Sept. 11-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

15,210 

7,970 

6,600 

4,080 

4,900 

3,980 

3,860

1,227,000

Silica 

(Si02) 

ppm

9.0 

15 

19 

14 

15 

20 

20

15

Equivalents per million

Calcium 

(Ca)

1.20 

2.59 

3.34 

2.89 

2.94 

3.09 

3.19

1.70

Magnesium 

(Mg)

0.18 

.42 

.61 

.59 

.62 

.58 

.58

0.39

Sodium 

(Na)

Potassium 

(K)

2.76 

6.37 

9.90 

8.50 

8.91 

6.85 

6.53

3.26

Bicarbonate 

(HCOS)

1.38 

2.74 

3.88 

3.62 

3.87 

4.02 

4.05

1.72

Sulfate 

(SOJ

0.58 

1.04 

2.54 

2.19 

2.08 

1.46 

1.10

0.83

Chloride 

(Cl)

2.14 

5.58 

7.39 

6.15 

6.49 

5.02 

5.13

2.68

Fluoride 

(F)

Nitrate 

(NOS)

0.04 

.02 

.04 

.02 

.03 

.02 

.02

0.06

aSum of determined constituents.
SAN JACINTO RIVER BASIN 

SAN JACINTO RIVER NEAR HUFFMAN, TEX

LOCATION. At Sheldon pumping plant of City of Houston, 5i miles downstream from site 

Sour Lake & Western Railway bridge, 0.4 mile downstream from confluence of East and 

Harris County.

DRAINAGE AREA.--2,791 square miles, at gaging station. 

RECORDS AVAILABLE.--Chemical analyses: September 1945 to July 1948, December 1948 to A

Water temperatures: January 1949 to April 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 561 micromhos Mar. 28; minimu

Percent sodium: Maximum, 64 Oct. 27-31; minimum, 45 Dec. 5-13, 16-20. 

EXTREMES, 1945-54.--Specific conductance: Maximum daily, 6,340 micromhos Nov. 23, 1951

Percent sodium: Maximum, 79 Nov. 16, 18, 26, 1947; minimum, 18 June 3-10, 1950.

REMARKS.--Values reported for dissolved solids are sums of determined constituents. R

available in district office at Austin, Tex. Gaging station discontinued Sept. 30, 

Chemical analyses, October 1953 to April 195

Date 

of 

collection

Oct. 1-13, 1953 ... 

Oct. 14-26........

Clnt 97 ^11

Nov. 1-4, 23-25 . . . 

Nov. 5-6, 8-11, 21 

Nov. 7, 12-20, 22, 

26-30 ...........

Dec. 1-4, 14-15... 

Dec. 5-13, 16-20.. 

Dec. 21-31........

Jan. 1-5, 14-20, 

1954 ............

Jan. 6, 10-13, 21- 

25 ..............

Jan. 7-9, 26-31 ... 

Feb. 1-11 ........

Feb. 12-22........

Mar. 1-11 ........

Mar. 12-22 .......

Mar. 23-31, Apr. 

1-5..............

Runoff 

(acrefeet)

Silica 

(SiOj) 

ppm

21 

19

12 

17 

16

19

22 

18 

14

14

18 

21

22 

20 

17 

20 

20

18

Equivalents per million

Calcium 

(Ca)

1.20 

1.20 

.80 

.90 

.70

1.05

1.15 

1.05 

.65

.85

1.10 

1.35

1.60 

1.65 

1.35 

1.55 

1.65

1.70

Magnesium 

(Mg)

0.34 

.32 

.31 

.16 

.18

.21

.30 

.22 

.16

.25

.30 

.37

.40 

.40 

.38 

.31 

.36

.36

Sodium 

(Na)

2. 

2. 

1. 

1.

1.

2.

1.

1.

1. 

2.

2. 

2. 

1. 

2. 

2.

2.

Potassium 

(K)

65 

46 

99 

04 

98

84

09 

06

97

23

56 

10

25 

55 

66 

06 

38

72

Bicarbonate 

(HCO,)

1.41 

1.31 

.92 

1.05 

.75

1.08

1.18 

1.07 

.67

.80

1.05 

1.21

1.49 

1.52 

1.26 

1.47 

1.57

1.57

Sulfate 

(SOJ

0.11 

.11 

.12 

.10 

.12

.14

.19 

.14 

.12

.14

.14 

.16

.17 

.17 

.14 

.16 

.15

.14

Chloride 

(Cl)

2.65 

2.54 

2.03 

.93 

.96

1.86

2.14 

1.10 

.96

1.38

1.75 

2.43

2.57 

2.90 

1.97 

2.26 

2.65

3.05

Fluoride 

(F)

Nitrate 

(N03)

0.02 

.02 

.03 

.02 

.03

.02

.03 

.02 

.03

.01

.02 

.02

.0.2 

.01 

.02 

.03 

.02

.02
BRAZOS RIVER BASIN 

BRAZOS RIVER AT RICHMOND, TEX.

LOCATION.--At gaging station at bridge on U. S. Highway 59 in Richmond, Fort Bend Count

Railroad bridge and at mile 93.

DRAINAGE AREA. 44,050 square miles approximately, of which 9,240 square miles is prob

RECORDS AVAILABLE.--Chemical analyses: October 1945 to September 1954.

Water temperatures: November 1950 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,910 micromhos Sept. 2; minim

Percent sodium: Maximum, 61 July 21-31, Aug 21-31, Sept. 1-10; minimum, 24 Oct. 29-31

EXTREMES, 1945-54.--Specific conductance: Maximum daily, 2,540 micromhos Sept. 4, 1951

Percent sodium: Maximum, 76 Dec. 3-4, 1945; minimum, 18 Aug. 27-31, 1947.

REMARKS. Values reported for dissolved solids are residue on evaporation unless otherw

daily samples available in district office at Austin, Tex. Records of discharge for 

in WSP 1342.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 28, 1953 

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

Nov. 1-11 ........

Nov. 12-16, 19-23, 

25-26 ...........

Nov. 17-18, 24, 

27-30 ...........

Dec. 1-4 .........

Jan. 1-9, 1954 

Jan. 10-20. .......

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

Runoff 

(acrefeet)

42,800 

9,810 

17,370 

142, 000 

134, 100

47,700 

17,730

27,590 

306, 200 

219,300 

58,330 

38,380 

41.770

Silica 

(Si02) 

ppm

19 

21 

19 

14 

16

15

14

13 

18 

17 

20 

22 

20

Equivalents per million

Calcium 

(Ca)

2.59 

2.64 

2.99 

1.60 

1.50

2.05 

2.74

2.79 

1.60 

1.45 

1.55 

2.59 

3.04

Magnesium 

(Mg)

1.07 

1.23 

1.32 

.30 

.27

.46 

.65

.81 

.30 

.36 

.41 

.67 

.90

Sodium 

(Na)

2.26 

2.35 

2.78 

.61 

.83

1.43 

1.91

2.70 

.70 

.87 

1.09 

1.52 

2.52

Potassium 

(K)

0.10 

.10 

.10 

.08 

.10

.10 

.11

.10 

.10 

.09 

.10 

.10 

.11

Bicarbonate 

(HCO,)

3.11 

3.33 

3.67 

1.82 

1.62

2.15 

2.93

2.88 

1.64 

1.57 

1.67 

2.75 

 2.92

Sulfate 

(SO,)

0.85 

1.00 

1.31 

.37 

.35

.50 

.73

.98 

.46 

.40 

.48 

.79 

1.27

Chloride 

(Cl)

2.14 

2.03 

2.23 

.37 

.68

1.27 

1.69

2.43 

.51 

.79 

.96 

1.33 

2.37

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.03

.02 

.03

.03 

.04 

.03 

.03 

.02 

.02

Nitrate 

(NO.,)

0.02 

.01 

.03 

.08 

.02

.02 

.02

.07 

.04 

.03 

.03 

.03 

.04

a Sum of determined constituents.
> > > M CO M _) 

SOT -o^^ S'S | | 

to ' ' ' <j5' 

*p O "p £J >- t IO ETC 

-3 i- I"* . 0 0 p 

i to .... 5 

f 1 .... (D 

it. . . . . P 

-a

 j

to

-3

-3

cn

CO

OS

t-*

o

0

to

b

en

O

CO

cn

00

O

b

CO

o 

b

o

*. 

en

CO

0

01 

to

to 

to

8

o

o

to

-3

-a 

cn

!

O OS -3 

OS tO -3 

-3 -3 l-» 

O 0 0 

en co -3 

OS 00 it. 

os co en 

o o o 

c c c c c c S S s s'vT s" 

O to u O tO CO 

oo. -o. 

to en it. to o co 

O tO OS OS CO OS 

O O O CO §00 

O 0 O 0 0 

^ ^ ^ < < < < 

*-» 3 H* tO 

' ^ ~^ OS t-* 1 1 

 ^ en" ^ . . 

. to to ?* . . 

. oo co to . . . 

::::§::

en co *' 0 it'.? o o 

O 0 ° ° 0 0 0 

-T) |j( >it g; g; g 

"j* £ g » 1 i- to 

to os it. to co en 

en o it. it. -3 to 

to co ~3 oo o to 

OOOOOO

^ -a en 

^ ^^ 

cn os co 

***

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jo ooixaw SNisva 16
COLORADO RIVER BASIN 

COLORADO RIVER AT AUSTIN, TEX.

LOCATION.--At raw-water intake of Austin City Water Plant, 4J miles upstream from gagi

on U. S. Highway 183 at southeast edge of Austin, Travis County, 2.8 miles upstream 

from Waller Creek, 5 miles downstream from Barton Creek and at mile 290.

DRAINAGE AREA. 38,400 square miles (revised), approximately, of which 11,900 square m

RECORDS AVAILABLE.--Chemical analyses: October 1947 to September 1954.

Water temperatures: October 1947 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 520 micromhos Jan. 27; minim

Percent sodium: Maximum, 27 May 1-31; minimum, 15 Nov. 1-30, Jan. 1-31. 

EXTREMES, 1947-54.--Specific conductance: Maximum daily, 591 micromhos July 1, 1948; 

Percent sodium: Maximum, 46 Nov. 1-30, 1951; minimum, 15 Nov. 1-30, 1953, Jan. 1-31

REMARKS. Values reported for dissolved solids are residue on evaporation unless other

of daily samples available in district office at Austin, Tex. Records of discharge 

given in WSP 1342. No appreciable inflow between sampling point and gaging station 

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-31, 1953 ... 

Nov. 1-30. ........

Dec. 1-31 ........

Jan. 1-31, 1954 ... 

Feb. 1-28. ........

Mar. 1-31 ........

Apr. 1-30.........

May 1-31 .........

June 1-30.. .......

July 1-31 .........

Runoff 

(acrefeet)

20, 570 

16,110

31,050 

29, 930

12,380 

24, 890

56,7.70 

120,000

116,800 

131,500

Silica 

(SiOJ 

ppm

12 

14

12 

12

11 

8.8

9.6 

16

13 

11

Equivalents per million

Calcium 

(Ca)

2.35 

2.64

2.79 

2.89

2.30 

2.45

2.25 

2.10

2.10 

2.15

Magnesium 

(Mg)

0.99 

1.15

1.15 

1.40

1.40 

1.15

.99 

.82

.82 

1.07

So- Potasdium sium 

(Na) (K)

0.75 

.65

.73

.75

.93 

.90

.95 

1.07

1.03 

.85

Bicarbonate 

(HC03)

2.98 

3.33

3.57 

3.77

3.26 

3.23

2.98 

2.85

2.74 

2.90

Sulfate 

(SOJ

0.33 

.31

.35 

.42

.48 

.44

.37 

.33

.35 

.35

Chloride 

(Cl)

0.71 

.73

.68 

.79

.82 

.79

.79 

.76

.79 

.79

Fluoride 

(F)

0.03 

.02

.01

.01 

.01

.03 

.02

.02 

.01

Nitrate 

(NO,)

0.04 

.05

.06 

.06

.06 

.03

.02 

.03

.05- 

.02

a Sum of determined constituents.
Aug. 1-31, 1954...

Sept. 1-30 ........

Total or

weighted average

93, 880

30,480

684, 400

8.6

9.6

12

2.30

2.15

2.25

.99

1.07

0.99

.97

.97

0.96

2.97

2.90

2.98

.35

.37

0.35

.90

.90

0.79

.02

.01

0.02

.02

.01

0.03
COLORADO RIVER BASIN Continued

COLORADO RIVER AT WHARTON, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 59 in Wharton, Wharton County, 

Railroad bridge, 12 miles downstream from Jones Creek and at mile 67.

DRAINAGE AREA.--41,380 square miles, approximately, of which 11,900 square miles is pr

RECORDS AVAILABLE. Chemical analyses: April 1944 to September 1954.

Water temperatures: October 1945 to September 1948, March 1940 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 569 micromhos Mar. 15; minimu

Percent sodium: Maximum, 29 Mar. 1-31; minimum, 15 Dec. 5-12. 

EXTREMES, 1944-54. Specific conductance: Maximum daily, 721 micromhos Oct. 3, 1952; m

Percent sodium: Maximum, 43 Nov. 1-30, 1951; minimum, 7 Jan. 19-24, 1945.

REMARKS. Values reported for dissolved solids are residue on evaporation unless other

daily samples available in district office at Austin, Tex. Records of discharge fo

in WSP 1342.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-26, 1953... 

Oct. 27-31, Nov. 

1-6. ............

Dec. 1-4, 13-31..

Jan. 1-31, 1954 .. 

Feb. 1-28........

Mar. 1-31.......

Aug. 1-31........

Sept. 1-30 .......

Total or 

weighted average

Runoff 

(acrefeet)

34,770

66,550 

31,980

47,960 

51,290 

48,200

21,630 

21,970 

44,560

79, 150 

53,640 

53,870

55,920 

25,920

637, 400

Silica 

(SiOJ 

ppm

22

17 

14

17 

14 

13

9.0 

12 

14

20 

13 

11

9.6 

14

15

Equivalents per million

Calcium 

(Ca)

2.50

1.80 

2.50

2.79 

2.20 

2.50

2.74 

2.20 

2.20

2.10 

2.15 

2.20

2.20 

2.30

2.25

Magnesium 

(Mg)

1.07

.41 

.82

.90 

.44 

1.07

1.32 

1.40 

.99

.79 

.99 

.99

.99 

1.07

0.09

Sodium 

(Na)

1.22

.43 

.91

.87 

.48 

1.04

1.30 

1.48 

1.04

.87 

.87 

.87

1.04 

1.09

0.91

Potassium 

(K)

0.10

.09 

.10

.09 

.10 

.09

.09 

.09

.13 

.09 

.10

.11 

.11

0.10

Bicarbonate 

(HCO,)

a3.44

1.93 

2.95

3.16 

2.13 

3.00

3.54 

3.16 

2.98

2.72 

2.87 

2.88

2.82 

3.11

2.80

Sulfate 

(SOJ

0.44

.44 

.52

.62 

.73 

.62

.71 

.73 

.50

.40 

.40 

.37

.42 

.40

0.50

Chloride 

(Cl)

1.02

.34 

.79

.76 

.28 

.96

1.16 

1.21 

.95

.79 

.85 

.87

1.10 

1.02

0.82

Fluoride 

(F)

0.02

.02 

.02

.02 

.03 

.02

.02 

.02 

.02

.02 

.02 

.02

.02 

.01

0.02

Nitrate 

(NOJ

0.02

.04 

.02

.06 

.07 

.03

.02 

.04 

.03

.04 

.04 

.02

.02 

.02

0.03

a Includes 0.13 equivalent per million carbonate (COS ) b Sum of determined constituents
GUADALUPE RIVER BASIN 

GUADALUPE RIVER AT VICTORIA, TEX.

LOCATION.--At gaging station at bridge on U. S. Highway 59 in Victoria, Victoria County

Railroad bridge, 10 miles upstream from Coleto Creek, and at mile 51. 

DRAINAGE AREA. 5,161 square miles (revised). 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946, October 1948 to 

Water temperatures: November 1950 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,260 micromhos Sept. 15; min

Percent sodium: Maximum, 54 Sept. 13-20; minimum, 21 Oct. 26-31; Nov. 1-2. 

EXTREMES, 1945-46, 1948-54.--Specific conductance: Maximum, 1,950 micromhos Jan. 11-17

Percent sodium: Maximum, 67 July 23-24, 1950; minimum, 18 May 22-29, 1950.

REMARKS. -. -Values reported for dissolved solids are residue on evaporation unless otherw

daily samples available in district office at Austin, Tex. Records of discharge for 

given in WSP 1342.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-11, 1953 ... 

Oct. 12-25........

Oct. 26-31, 

Nov. 1-2 ........

Nov. 3-9 .........

Nov. 10-20 .......

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

Dec. 1-7..........

Dec. 8-16 ........

Dec. 17-31 .......

Jan. 1-4, 10, 15, 

22-24, 30, 1954 . . . 

Jan. 5-6, 21, 

25-29, 31........

Jan. 7-9, 11-14, 

16-20 ...........

Runoff 

(acrefeet)

9,420 

21,520

76,920 

12, 530 

13,800 

10, 560

20, 940 

13,990 

19, 530

11,390 

10,410 

13.980

Silica 

(Si02) 

ppm

21 

18

14 

16 

20 

20

16 

15 

17

22 

19 

21

Equivalents per million

Calcium 

(Ca)

2.35 

2.30

1.55 

2.30 

3.14 

2.59

3.29 

2.79 

3.69

1.95 

1.60 

1.60

Magnesium 

(Mg)

1.23 

1.32

.52 

.72 

1.32 

1.48

1.32 

.99 

1.48

1.56 

1.56 

1.40

Sodium 

(Na)

1.52 

1.48

.57 

1.13 

1.39 

1.48

1.57 

1.09 

1.57

2.26 

1.83 

1.57

Potassium 

(K)

0.09 

.07

.10 

.11 

.08 

.06'

.07 

.09 

.07

.08 

.07 

.07

Bicarbonate 

(HCOj)

3.18 

3.20

1.80 

2.59 

3.87 

3.51

4.00 

3.34 

4.56

2.59 

2.41 

2.43

Sulfate 

(SOJ

0.50 

.52

.27 

.42 

.58 

.62

.60 

.56 

.62

.73 

.67 

.58

Chloride 

(Cl)

1.49 

1.47

.54 

1.18 

1.41 

1.52

1.52 

.96 

1.49

2.40 

1.89 

1.55

Fluoride 

(F)

0.02 

.02

.02 

.02 

.01 

.01

.02 

.02 

.01

.02 

.02 

.02

Nitrate 

(NO,)

0.05 

.04

.06 

.05 

.06 

.05

.06 

.06 

.07

.06 

.06 

.06

aSum of determined constituents.
GUADALUPE RIVER BASIN Continued 

GUADALUPE RIVER AT VICTORIA, TEX. Cont

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Feb. 1-10, 1954 . . . 

Feb. 11-19 .......

Feb. 20-28 .......

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

Mar. 11-20, 22, 24. 

Mar. 21, 23, 25-31 .

Apr. 1-13. ........

Apr. 14-19 .......

Apr. 20-24, 30.... 

Apr. 25-29. .......

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

May 11-15, 29-31.. 

May 16-28 ........

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. 1-12 ........

Sept. 13-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

10, 450 

9,080 

8,520 

8,670 

9,910 

6,790

14,730 

6,120 

4,630 

3,290 

11,050 

18,470 

13,650

6,400 

3,950 

4,300 

3,600 

3,180 

2,240

2,440 

1,980 

2,220 

2,630 

1,600 

2,150

397,000

Silica 

(Si02) 

ppm

18 

16 

16 

18 

15 

16

19 

18 

23 

19 

29 

30 

23

21 

21 

18 

19 

18 

19

22 

22 

21 

26 

24 

23

19

Equivalents per million

Calcium 

(Ca)

1.70 

1.80 

2.10 

2.30 

2.20 

2.59

2.69 

2.20 

2.99 

3.49 

2.10 

2.40 

1.95

2.79 

2.45 

2.59 

2.00 

2.35 

2.59

2.54 

2.59 

2.69 

2.50 

2.89 

2.50

2.30

Magnesium 

(Mg)

1.56 

1.64 

1.56 

1.64 

1.64 

1.73

1.64 

.76 

1.40 

2.06 

1.40 

1.15 

.55

1.56 

1.48 

1.56 

1.56 

1.56 

1.81

1.56 

1.56 

1.64 

1.73 

1.97 

1.48

1.15

Sodium 

(Na)

1.87 

1.83 

1.91 

2.09 

2.17 

2.48

2.57 

1.26 

2.17 

4.22 

2.09 

1.78 

1.26

2.26 

2.22 

2.'57 

2.65 

2.96 

4.87

3.22 

3.04 

3.48 

3.52 

5.78 

3.09

1.61

Potassium 

(K)

0.07 

.07 

.08 

.07

.11

.08 

.09 

.12

.10 

.09 

.09 

.10 

.12 

.10

0.09

Bicarbonate 

(HCO,)

2.59 

2.65 

2.84 

3.20 

3.16 

3.41

3.48 

2.56 

3.67 

3.57 

2.97 

3.06 

2.26

3.61 

3.29 

3.38 

2.97 

3.16 

2.88

3.51 

3.62 

3.52 

3.43 

3.39 

3.67

2.93

Sulfate 

(SOJ

0.69 

.69 

.67 

.73 

.73 

.79

.77 

.58 

.69 

.94 

.65 

.60 

.35

.71 

.71 

.75 

.73 

.77 

.96

.75 

.73 

.87 

.81 

.92 

.69

0.56

Chloride 

(Cl)

1.86 

1.86 

2.03 

2.12 

2.09 

2.59

2.65 

1.07 

2.26 

5.16 

2.09 

1.78 

1.13

2.40 

2.26 

2.68 

2.65 

3.16 

5.64

3.27 

3.05 

3.61 

3.50 

6.35 

2.76

1.64

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.01 

.02 

.02 

.03

.02 

.02 

.02 

.03 

.02 

.02

.03 

.02 

.02 

.02 

.02 

.01

0.02

Nitrate 

(NO,)

0.06 

.05 

.04 

.04 

.04 

.05

.06 

.06 

.04 

.02 

.04 

.07 

.06

.03 

.03 

.03 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0.05

a Sum of determined constituents.
NUECES RIVER BASIN 

NUECES RIVER NEAR MATHIS, TEX.

LOCATION.--At intake tower at Lake Corpus Christ!, 0.8 miles upstream from gaging stat

downstream from Texas and New Orleans Railroad bridge and 4 miles southwest of Mat

DRAINAGE AREA. 16,660 square miles. 

RECORDS AVAILABLE.--Chemical analyses: October 1947 to September 1954.

Water temperatures: October 1947 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 879 micromhos May 19; minimu

Percent sodium: Maximum, 57 June 1-10; minimum, 27 Aug. 1-31. 

EXTREMES, 1947-54. Specific conductance: Maximum daily, 1,040 micromhos July 1, 1948

Percent sodium: Maximum, 63 May 1-20, 1953; minimum, 24 Sept. 1-30, 1953.

REMARKS. Values reported for dissolved solids are residue on evaporation unless other

of daily samples available in district office at Austin, Tex. Records of discharge 

given in WSP 1342.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-31, 1953 ... 

Nov. 1-30 ........

Dec. 1-31.........

Jan. 1-31, 1954 . . . 

Feb. 1-28. ........

Mar. 1-31 ........

Apr. 1-30. ........

May 1-31 .........

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

June 11-30... .....

July 1-31..........

Aug. 1-31... ......

Sept. 1-30 ........

Total or 

weighted average

Runoff 

(acrefeet)

65,690 

40, 890 

2,710 

2,730

3,260 

3,710 

3,120 

3,710

19,730 

35, 530 

145, 300 

5,320 

4,630

336, 300

Silica 

(Si02) 

ppm

31 

23 

19 

19

19 

19 

36 

32

29 

25 

24 

23 

24

26

Equivalents per million

Calcium 

(Ca)

2.25 

1.90 

2.20 

2.35

2.54 

2.74 

2.99 

2.94

2.45 

2.40 

2.30 

2.74 

2.64

2.30

Magnesium 

(Mg)

0.30 

.25 

.36 

.37

.39 

.38 

.44 

.43

.47 

.40 

.36 

.35 

.38

0.35

Sodium 

(Na)

1.39 

1.17 

1.13 

1.17

1.39 

1.83 

3.17 

4.35

3.87 

2.09 

1.39 

1.22 

1.43

1.65

Potassium 

(K)

0. 16 

.13 

.13 

.14

.16 

.17

.16 

.18 

.19 

.20

0.16

Bicarbonate 

(HCOS)

2.79 

2.34 

2.69 

2.88

3.10 

3.46 

b4.02 

c4. 17

3.61 

3.20 

2.88 

3.38 

3.36

2.92

Sulfate

(so<)

0.62 

.52 

.54 

.52

.58 

.62 

.83 

1.04

1.04 

.67 

.52 

.48 

.48

0.60

Chloride 

(Cl)

0.68 

.51 

.54 

.54

.71 

.90 

1.92 

2.71

2.31 

1.18 

.73 

.65 

.79

0.87

Fluoride 

(F)

0.03 

.03 

.02 

.02

.02 

.02 

.02 

.03

.03 

.03 

.03 

.03 

.01

0.02

Nitrate 

(NOS)

0.04 

.02 

.02 

.02

.02 

.03 

.02 

.06

.04 

.04 

.03 

.05 

.04

0.03

a Sum of determined constituents.

bIncludes 0. 23 equivalent per million carbonate (CO3)

c Includes 0. 27 equivalent per million carbonate (CO,)
RIO GRANDE BASIN 

RIO GRANDE ABOVE CULEBRA CREEK NEAR LOBATOS, 

LOCATION. Half a mile southeast of La Sauces, 7 miles upstream from Culebra Creek, an

Conejos County. 

DRAINAGE AREA. 7,700 square miles above gaging station (includes 2,940 square miles 

Colo.). 

RECORDS AVAILABLE.--Chemical analyses: October 1946 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 585 micromhos Oct. 19; mi

Percent sodium: Maximum, 53 Aug. 1-10; minimum, 27 Nov. 1-10, Feb. 1-10. 

EXTREMES, 1946-54. Specific conductance: Maximum observed, 1,070 micromhos July 26, 

Percent sodium: Maximum, 53 Aug. 1-10, 1954; minimum, 16 Dec. 1, 3-10, 1946. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

district office at Albuquerque, N. Mex. Culebra Creek which enters Rio Grande betw

dry at its mouth. Inflow from other sources between sampling point and gaging stat

Records of discharge for gaging station near Lobatos, Colo. for water year October 

Chemical analyses, water ye"ar October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953..

Oct 17 19

Nov. 11-20 .....

Nov. 21-30 ..... 

Dec 1 10

Dec 11 20

Hoo 91 11

Jan. 1-10, 1954 . 

Jan. 11-20 ......

Jan. 21-31 ......

Runoff 

(acrefeet)

902 

775 

309 

1,900 

1,540 

1,680 

4,240

5,110 

4,970 

4,530 

3,480 

3,570 

4,650

Silica 

(SiOj) 

ppm

42 

39

Equivalents per million

Calcium 

(Ca)

1.90 

1.80 

2.40 

1.75 

1.75 

1.65 

1.65

1.65 

1.80 

1.70 

1.55 

1.60 

1.55

Magnesium 

(Mg)

0.68 

.62 

.90 

.70 

.62 

.58 

.60

.65 

.60 

.60 

.47 

.50 

.49

Sodium 

(Na)

1.83 

1.17 

2.00 

1.22 

.87 

.96 

1.00

1.00 

1.00 

.91 

.91 

.83 

.78

Potassium 

(K)

0.18

.12

Bicarbonate 

(HCO,)

2.85

2.16

Sulfate 

(SOJ

1.35

.73

Chloride 

(Cl)

0.37

.17

Fluoride 

(F)

0.04

.02

Nitrate 

(NO,)

0.02

.02
Feb. 1-10, 1954 . . 

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

Feb. 21-28 ......

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

Mar. 11-20 ......

Mar. 21-31 ......

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

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

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

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

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

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 ......

Total or 

weighted average

5,390 

6,080 

3,120 

2,760 

2,500 

2,210

1,490 

1,140 

940 

641 

1,410 

1,130

583 

383 

215 

207 

241 

325

245 

414 

144 

876 

605 

863

71, 570

37 

36_

1.40 

1.65 

1.90 

1.85 

1.75 

1.75

1.85 

1.95 

1.65 

1.60 

1.30 

1.35

1.65 

1.85 

2.00 

2.00 

1.95 

2.00

1.70 

1.80 

1.75 

1.80 

1.60 

1.45

1.65

.45 

.55 

.62 

.62 

.61 

.57

.54 

.67 

.41 

.37 

.41 

.40

.49 

.51 

.64 

.82 

.80 

.82

.82 

.74 

.78 

.62 

.64 

.59

0.57

.70 

.87 

1.12 

1.22 

1.04 

1.04

1.30 

1.39 

1.09

i.oa

.65 

.70

1.22 

1.30 

2.00 

2.13 

1.96 

2.22

2.83 

1.91 

2.13 

1.57 

1.17 

1.13

1.00

.16

.18

2.43

3.24

1.21

1.48

.11

.37

.03

.05

.01

.01
RIO GRANDE BASIN Continued

RIO GRANDE AT OTOWI BRIDGE NEAR SAN ILDEFONSO, 

LOCATION. At gaging station on downstream side of pier of former railway bridge (now 

Highway 4, 1 3/4 miles southwest of San Ildefonso Pueblo, San Ildefonso Grant, 2 1

west of Pojoaque, Santa Fe County.

DRAINAGE AREA.--14,300 square miles, approximately (includes 2,940 square miles in clo

RECORDS AVAILABLE.--Chemical analyses: October 1946 to September 1954. 

Water temperatures: October 1948 to September 1954. 

Sediment records: October 1947 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 852 micromhos Sept. 14; m

Percent sodium: Maximum, 34 Jan. 21 to Feb. 10; minimum, 16 May 21-31. 

EXTREMES, 1946-54.--Specific conductance: Maximum observed, 1,230 micromhos Aug. 26, 

Percent sodium: Maximum, 34 Jan. 21 to Feb. 10, 1954; minimum, 14 June 11-20, 1949, 

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

available in district office at Albuquerque, N. Mex. Records of discharge for wate

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953.. 

Oct. 11-20 ......

fi«t 91 ^ 1

Nov. 1-10 ......

Nov. 21-30 .....

rwa/» i 1 n

TVs/* 1 1 9(\

Dec. 21-31......

Jan. 1-10, 1954. . 

Jan. 11-20 ......

Jan. 21-31 ......

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

Mar. 11 ........

Runoff 

(acrefeet)

4,070 

5,100 

8,320 

9,150 

8,600 

9,880

10,480 

10,370 

10,870 

9,370 

9,790 

11,480

11,790 

15,390 

11,080 

9,420 

1.970

Silica 

(SiOs) 

ppm

30 

30 

32 

33 

29 

29

28 

30 

29 

29 

30 

38

43 

27 

27 

30 

20

Equivalents per million

Calcium 

(Ca)

1.90 

1.95 

2.59 

2.45 

2.40 

2.35

1.95 

2.05 

1.90 

1.90 

1.85 

1.70

1.60 

2.20 

2.20 

2.05 

4.19

Magnesium 

(Mg)

0.67 

.71 

.82 

.82 

.82 

.82

.68 

.70 

.66 

.67 

.58 

.62

..68 

.72 

.76 

.71 

1.64

Sodium 

(Na)

1.17 

1.30 

1.61 

1.52 

1.48 

1.43

1.09 

1.13 

1.04 

1.09 

1.09 

1.22

1.22 

1.22 

1.13 

1.22 

2

Potassium 

<K)

0.09 

.08

.08 

.09

67

Bioarbonate 

(HCOS)

2.88 

2.87 

3.08 

3.05 

3.00 

2.95

2.59 

2.65 

2.56 

2.62 

2.52 

2.43

2.43 

2.47 

2.51 

2.67 

a 2. 87

Sulfate 

(SO,)

0.79 

.96 

1.56 

1.52 

1.56 

1.50

1.04 

.96 

.92 

.92 

.85 

.87

.90 

1.48 

1.48 

1.19 

5.18

Chloride 

(Cl)

0.28 

.34 

.39 

.34 

.37 

.39.

.31

.28 

.27 

.28 

.27 

.27

.25 

.27 

.24 

.27 

.45

Fluoride 

(F)

Nitrate 

(NOJ

0.01 

.01 

.02 

.01 

.01 

.01

.02 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.00 

.00

a Includes 0. 67 equivalent per million of carbonate (CO3).
Mar. 12-20, 1954

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

Apr. 11-20 .....

Apr. 21-30 .....

May 1-10 .......

May 11-20 ......

May 21-31 ......

July 1-9 ........

July 10 .........

July 11-18, 20 . . 

July 19 .........

July 21-31 ......

Sept. 11-12, 16-20

Sept. 21-30 .....

Total or 

weighted average

10,270 

15,090

15,550

2C, 220

1 Q Rdft

25, 520

33,430

36,410

19,590

13,190

4,470

6,010

2,600

14,370 

1,470

191 Qft

6,270

4,740

10,480

6,350 4 R1 ft

5,280

450,600

27 

23

23

19

91

17

18

18

18

20

24

29

91

24

9O

26

33

29

31

25

25 

21

29

25

2.25 

2.64

2.69

2.20

1 OR

2.20

2.00

1.85

1.65

1.75

1 QR

2.15 3 74.

2.25 3

f\A

2 1 (\

2 94 2

QQ

2.69 3 1 Q

2.79 

4.14

2.40

2.20

.76

.82

.57

R1

.35

.37

.33

.35

.45

.61

.68

QO

.90 

.70

CO

.70

.70

.70

.74

.82

.82

0.61

1.17 

1.65

1.13

.65

.87

.52

.52

41

.48

.65

1 OQ

1 OQ

1 30

.61 

1 13

.96

1 09

1 ir»

i 10

1.22 2 1 °.

1.35

0.96

--

0.08

.07

.06

.07

.07

--

--

..

__

2.72 2 QO

2.77

2.49

2.36

2.46

2.26

2.05

1.87

2.10

2.62

2.85

9 fiQ

2.46 

3.18 2 R1

3.38 3

OO

3.33

2.97 3 9Q

2.98

2.57

1.35 

2 10

1.67

.92

.87

.60

.62

.56

.58

.75

94

1.00 3 91

.81 

1.77

QA

QO

1.38

1.17

1.58

1.69 4

f\A

1.33

1.10

.24

OR

.21

.14

Oft

.14

.13

.12

.13

20

.33

.06

.10

.18

Oft

.28

07

.21

.21 

.25

.31

0.21

.01 

.01

.01

.03

.01

.01

.01

.01

.00

.00

.01

.01

fto

.01 

.00

.01

O9

01

ftO

.01

.02

ftO

.01

0.01
RIO GRANDE BASIN Continued 

RIO GRANDE TIFFANY CHANNEL AT SAN MARCIAL

LOCATION. At water-stage recorder at Atchis'on, Topeka and Santa Fe Railway bridge ov

San Marcial, Socorro County. Tiffany Channel is a bypass channel carrying water ar

RECORDS AVAILABLE. Chemical analyses: April 1950 to April 1954. 

Water temperatures: October 1950 to April 1954. 

Sediment records: April 1950 to April 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum observed, 2,400 micromhos Feb. 15; 

Percent sodium: Maximum, 64 Feb. 11-20; minimum, 43 Nov. 21-30. 

EXTREMES, 1950-54. Specific conductance: Maximum observed, 2,990 micromhos June 19, 

Percent sodium: Maximum, 64 Feb. 11-20, 1954; minimum, 29 June 11-20, 1952.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

district office at albuquerque, N. Mex. Extremes and weighted average analysis for 

to conveyance channel construction and operation. Weighted average analysis not in

Records of discharge for water year October 1953 to September 1954 furnished by the 

records for composite discharge of Rio Grande Tiffany Channel and Rio Grande Floodw

WSP 1342. Quality of Water records for Rio Grande Floodway at San Marcial given on 

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . . .

f\nt 1 1 9fi

(~\r*t 91 31

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

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

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

Dec 1-4

Dec. 5-10.........

r\on 1 1 -9ft

T\a« O | Q -I

Jan. 1-10, 1954 ... 

Jan. 11-20........

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

Runoff 

(acrefeet)

151 

145 

178 

131 

240 

1,260

1,360 

295 

587 

599 

474 

805 

823

Silica 

(SiOj) 

ppm

38 

33

Equivalents per million

Calcium 

(Ca)

4.49 

4.49 

4.79 

4.79 

6.19 

4.39

3.74 

5.14 

5.09 

5.89 

6.54 

5.54 

5.14

Magnesium 

(Mg)

1.64 

1.64 

1.81 

1.81 

2.30 

1.48

1.15 

1.97 

2.06 

2.63 

2.30 

2.55 

2.3R

Sodium 

(Na)

7.61 

7.22 

8.35 

8.52 

9.39 

4.35

4.00 

8.91 

8.52 

10.87 

11.91 

12.05 

11 52

Potassium 

(K)

0.18

.24

Bicarbonate 

(HCOj)

4.65

4.46

Sulfate 

(S0«)

5.39

8.91

Chloride 

(CD

3.89

7.95

Fluoride 

(F)

0.03

.03

Nitrate 

(NO,)

0.01

.05
Feb. 1-10, 1954 . . .

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

T? oH O1 "ft

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

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

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

Apr. 11-14 .......

Apr. 23-30 .......

Total ..........

QQQ

1,580

1 97A.

1,440

4,350

3,050 

2,500

1,010 

7 Q^n

2,200

33,200

28

__

5

AQ

S

en

5

KA

4 99

4 

on

4.34 4

CQ

3

OQ

4.39

2

QQ

2 

EC

2

QA

1 Q7

1.48

1.23 1

Q1

1.15

1.73

1 9 <^9

14.44 U 7Q 8

00

5

AQ

5.52

7.70 3

C7

6.44

.19 3.93 4.54 2.71 .03 .01 
RIO GRANDE BASIN Continued

RIO GRANDE FLOODWAY AT SAN MARCIAL, N. M

LOCATION.--At gaging station at Atchison, Topeka & Santa Fe Railway bridge, 1.1 miles 

Socorro County, and 18| miles (revised) southwest of San Antonio. 

DRAINAGE AREA.--27,700 square miles, approximately, (includes 2,940 square miles in c

Colo.).

RECORDS AVAILABLE. Chemical analyses: July 1946 to September 1954. 

Water temperatures: January 1949 to September 1954. 

Sediment records: July 1946 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed. 2.690 micromhos Oct. 17; 

Percent sodium: Maximum, 54 Oct. 27-31, Nov. 1, 6-8; minimum, 31 Aug. 3-10. 

EXTREMES, 1946-54.--Specific conductance: Maximum observed, 2,730 micromhos Apr. 8, 

1952.

Percent sodium: Maximum, 65 May 1-10, 1951; minimum, 22 Nov. 21-22, 28-30, 1947, J

REMARKS.--Values reported for dissolved solids are residue on evaporation. Records o

vailable in district office at Albuquerque, N. Mex. Records of chemical analyses 

have been published in Water Bulletins of International Boundary and Water Commiss

October 1953 to September 1954 furnished by Santa Fe district office of Surface Wa

Grande at San Marcial for water year October 1953 to September 1954 given in WSP 1

named main channel, and Tiffany Channel through February 1954. Thereafter they ar

Channel at San Marcial. Quality of Water records for Tiffany Channel given on pag

Marcial on page 106 .

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 4-6, 1953 a. . . 

Oct. 14-15, 17-19 . 

Oct. 27-31, 

Nov. 1, 6-8.....

Dec. 5-10 ........

Dec. 11-20 .......

Dec. 21-31. .......

Jan. 1-10, 1954 . . . 

Jan. 11-20........

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

Runoff 

(acrefeet)

2.6 

4.0

7.3 

2,240 

5,290 

5,600 

6,440 

7,890 

. 8. 870

Silica 

(Si02) 

ppm

27

Equivalents per million

Calcium 

(Ca)

8.48 

9.98

6.29 

4.19 

3.89 

3.69 

3.64 

3.49 

3.64

Magnesium 

(Mg)

7.15 

6.58

6.17 

1.48 

1.23 

1.15 

.99 

.99 

.99

Sodium 

(Na)

12.96 

15.48

14.70 

4.09 

3.17 

3.09 

2.87 

2.74 

2.74

Potassium 

(K)

0.12

Bicarbonate 

(HC03)

3.61

Sulfate 

(S0<)

3.02

Chloride 

(Cl)

0.90

Fluoride 

(F)

0.04

Nitrate 

(NO,)

0.03

a No now Oct. 1-3, 7-13, 16, 20-26, Nov. 2-5, 9-Dec. 4, Mar. 20-Apr. 18, Apr. 22-May 26, June 6-July 25, 
Feb. 1-10, 1954... 

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

Feb. 21-28 .......

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

Mar. 11-19 .......

May 27-31 ........

July 26-31 ........

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

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

Aug. 21-31......... 

Sept. 1 ...........

Sept. 12-13 .......

Sept. 14-20.......

Sept. 21-22, 24, 

26-30. ..........

Sept. 25 ..........

Total or 

weighted average b

8,380 

10, 140

8,840

6,370

50

3,330

865

2,970

1,600

6,060

3,930 

4

793

2,990

10,760

407

103, 900

3.44 

3.54

3.34

3.69

4.24

2.99

3.84

10.18

14.97

11.88

10.38 

7.93

5.89

11.08

10.18

4.79

5.59

.90 

.99

1.07

1.23

1.15

.90

1.23

4.03

5.18

3.62

3.95 

3.29

2.38

4.28

3.70

1.81

1.81

2.70 

2.61

2.57

3.09

4.52

2.17

2.57

9.57

9.09

8.70

8.48 

8.83

5.00

9.83

8.70

5.09

4.48

b Represents more than 99 percent of the runoff for water year October 1953 to September 1954.
RIO GRAND! BASIN Continued 

RIO GRAND! CONVEYANCE CHANNEL AT SAN MAR

LOCATION.--At gaging station 440 feet downstream from grade control at outlet of San M

drain entering from left side, 1,800 feet west of San Marcial gage on railway bridg

about 1 mile south of the former site of San Marcial, Socorro County. 

RECORDS AVAILABLE. Chemical analyses: March 1954 to September 1954.

Sediment records: March 1954 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 2,320 micromhos June 24; m

Percent sodium: Maximum, 59 Mar. 11-18; minimum, 40 Aug. 11-31.

REMARKS.--Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Albuquerque, N. Mex. Gaging station established February 27, 

October 1953 to September 1954 furnished by Santa Fe district office of Surface Wate

Rio Grande Conveyance Channel at San Marcial and Rio Grande Floodway at San Marcial 

Chemical analyses for Rio Grande Floodway given on page 104.

Chemical analyses, March to September 1954

Date 

of 

collection

Mar. 11-18, 1954

MOT* 1Q 71

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

Apr. 11-20......

Apr. 21-30 .....

May 1-10.......

May 11-20 ......

May 21-31,

June 11-20......

July 1 10 .......

July 11-20 ......

July 21-31 ......

Runoff 

(acrefeet)

3,170 

4,020 

2,970 

7,320 

3,790

4,400 

9,350

19, 690 

1,350 

331 

27

31 

26 

5,120

Silica 

(Si02) 

ppm

27 

26

Equivalents per million

Calcium 

(Ca)

5.64 

4.24 

4.19 

3.74 

3.29

3.99 

3.94

3.34 

3.79 

6.44 

7.39

7.34 

6.14 

8.28

Magnesium 

(Mg)

1.64 

1.40 

1.40 

1.40 

1.32

1.48 

1.48

1.23 

1.40 

3.45 

4.28

3.78 

3.95 

3.12

Sodium 

(Na)

10.52 

6.00 

5.87 

5.17 

4.04

6.13 

5.91

3.61 

5.13 

10.31 

12.05

11.65 

11.65 

10.26

Potassium 

(K)

0.19

.24

Bicarbonate 

(HCCg

3.88

6.33

Sulfate 

(SO,,)

5.08

11.18

Chloride 

(Cl)

2.88

5.25

Fluoride 

(F)

0.04

.04

Nitrate

(Ncg

0.00

.04
Aug. 1-10,1954...

Aug. 11-20 ......

Sept. 11-20 ......

Cot-it 91 OR 97 °.fl

Sept. 26 .........

Total or 

weighted average

1 ^9fi 3

*>Af\

309

3 99fi

6,310

RAQ

82, 320 .-

9 93

10.48

10.08 9

OQ

8 

QO

3

RA

5.54

2 71

3 04 3

07

3 12

2 

CO

90

1.81

9 35 8 5,7

9 

OR

1 f\ Q7 9

07

8

(\A

3

AA

6.39
RIO GRANDE BASIN Continued

RIO GRANDE BELOW ELEPHANT BOTTE OUTLET, N. 

LOC^TI 2N '""At gaging station 1-0 mile downstream from dam, \\ miles upstream from Cu

N . MGX . 

n,c,«Ao S9uare miles, approximately (includes 2,940 square miles in cl

RECORDS AVAILABLE. Chemical analyses, 1933 to 1954.

REMARKS. --Chemical analyses by the U. S. Dept . Agriculture, Agricultural Research Se

Records of discharge for water year October 1953 to September 1954 given in WSP 13

Chemical analyses, water year October 1953 to Septem

Month

October 1953 

November . . 

December . . 

January 19 54 

February . . .

July .......

September . .

Number 

of 

samples

20 

25 

20 

25 

20 

20 

20 

25 

20 

25 

20 

20

Runoff 

(acrefeet)

302 

375 

417 

621 

289 

45, 500 

67,200 

32,100 

34.900 

54,000 

9,530 

163

Silica 

(SiO,) 

ppm

28 

31

Equivalents per million

Calcium 

(Ca)

4.01 

4.08 

4.09 

4.11 

3.80 

3.84 

3.64 

3.04 

2.84 

3.11 

4.49 

4.84

Magnesium 

(Mg)

1.66 

1.24 

1.73 

1.57 

1.76 

1.67 

1.43 

1.55 

1.48 

1.51 

1.97 

1.93

Sodium 

(Na)

5.45 

5.90 

5.90 

6.00 

6.05 

6.12 

5.90 

5.80 

6.10 

6.34 

8.74 

8.30

Potassium 

(K)

0.20 

.22

Bicarbonate 

(HCOS)

a 2. 63 

b2.43 

c2.40 

d2.37 

e2.35 

2.43 

f2. 55 

2.28 

e2. 10 

e2.30 

gl.OO 

el. 85

Sulfate 

(SOJ

5.96 

6.19 

6.39 

6.42 

6.25 

6.08 

5.25 

4.89 

5.00 

4.97 

9.91 

9.98

Chloride 

(Cl)

2.55 

2.75 

3.20 

3.10 . 

3.15 

3.25 

3.25 

3.30 

3.55 

3.85 

4.45 

3.45

Fluoride 

(F)

0.05 

.05

Nitrate 

(NO,)

0.01 

k 

k 

k 

k 

k 

.02 

k 

k 

k 

.01 

.02

a Includes 0.10 equivalent per million of carbonate (COS). 

b Includes 0.12 equivalent per million of carbonate (CO3). 

c Includes 0. 22 equivalent per million of carbonate (CO3). 

d Includes 0.16 equivalent per million of carbonate (CO3).

e Includes 0. 20 equ

f Includes 0. 24 equ

g Includes 0.10 equ

k Less than 0. 01 e
RIO GRANDE BASIN Continued 

RIO GRANDE NEAR EL PASO, TEX.

LOCATION.--At gaging station 5 miles northwest of El Paso, Texa's, 6 miles northwest of 

above the American Dam.

DRAINAGE AREA. 29,267 square miles (from International Boundary and Water Commission 

RECORDS AVAILABLE. Chemical analyses, 1933 to 1954. 

REMARKS.--Chemical analyses by the U. S. Dept. Agriculture, Agricultural Research Serv

Calif. Records of discharge for water year October 1953 to September 1954 given in 

tfatep Bulletin Numbers 23 and 24.

Chemical analyses water year October 1953 to September 1954

Month

October 1953

November . .

December . .

January 1954

February. . .

April ......

July .......

September . .

Number 

of 

samples

31

30

31

31

28

31

30

30

30

20

31

30

Runoff 

(acrefeet)

5,530

4,290

3,690

3,250

2,010

5,470

99 "Tflfl

12,700

1 9 R(\(\

16, 200

11,700

2,430

Silica 

(Si02) 

ppm

-.

--

--

30

..

30

--

Equivalents per million

Calcium 

(Ca)

5.35

5.35

5.61

5.59

5.01

5.19

4.76

4.26

4.41

4.18

3.60

5.16

Magnesium 

<Mg)

2.05

2.08

2.23

2.25

2.17

2.00

1.71

1.75

1.65

'1.66

1.18

1.98

Sodium 

(Na)

12.80

14.00

15.40

15.40

16.40

9.75

7.68

8.15

8.19

7.80

5.80

13.00

Potassium 

(K)

-.

--

--

0.40

_.

.28

--

Bicarbonate 

(HC03)

4.95

4.65

a5. 00

4.75

4.75

b3.45

3.20

3.25

C3.20

3.23

ds.OO

3.70

Sulfate 

(SOJ

8.38

8.63

9.03

9.48

10.12

7.24

6.45

6.29

6.27

5.99

4.46

8.65

Chloride 

(Cl)

7.30

8.25

9.30

9.50

8.95

6.50

4.75

4.80

4.92

4.70

3.50

8.05

Fluoride 

(F)

__

--

--

106

__

.05

-

Nitrate 

(NOS)

0.01

.02

.01

.01

.01

.03

.02

.01

e

B

0

a Includes 0. 20 equivalent per million carbonate (CO3 ). 

b Includes 0.10 equivalent per million carbonate (COS). 

c Includes 0. 22 equivalent per million carbonate (CO3 ).

d Includes 0. 40 equivalent per 

e Less than 0. 01 equivalent p
RIO GRANDE BASIN Continued

RIO GRANDE BELOW OLD FORT QUITMAN, TEX.

LOCATION. At gaging station at the rectified channel of the Rio Grande, 1.5 miles bel

the American Dam at El Paso, Tex.

DRAINAGE AREA.--31,990 square miles (United States and Mexico; from International Bound

RECORDS AVAILABLE. Chemical analyses, 1933 to 1954. 

REMARKS. Chemical analyses by the U. S. Dept. Agriculture, Agricultural Research Serv

Records of discharge for water year October 1953 to September 1954 given in Interna

Numbers 23 and 24.

Chemical analyses, water year October 1953 to Septemb

Month

October 1953 . .

November ....

December

January 1954 . .

May ..........

July ..........

September

ber 

of 

samples

4

4

5

4

4

5

5

5

3

6

7

5

Runoff 

(acrefeet)

51.6

143

131

165

164

140

124

1,650

584

1,240

8,570

108

Silica 

(Si02) 

ppm

__

--

--

24

__

35

--

Equivalents per million

Calcium 

(Ca)

39.60

24.55

30.82

30.55

27.12

29.02

15.75

9.18

8.19

6.29

2.98

26.75

Magnesium 

(Mg)

20.90

12.25

15.18

15.69

13.78

15.62

8.25

3.52

2.54

2.08

1.16

14.30

Sodium 

(Na)

82.50

61.00

70.00

75.00

75.50

85.00

44.40

17.00

18.10

10.40

5.44

53.80

Potassium 

(K)

__

-.

--

0.92

.25

--

Bicarbonate 

(HCOj)

2.60

4.00

4.00

b 3.90

3.50

3.27

3.75

2.65

2.80

3.33

2.80

3.00

Sulfate 

(SOJ

29.60

23.99

27.16

29.20

30.00

34.28

17.93

6.66

7.75

5.19

2.86

20.58

Chloride 

(Cl)

111.5

70.22

84.75

89.12

83.38

92.40

47.10

20.55

18.48

10.55

4.05

71.38

Fluoride 

(F)

__

--

--

0.05

__

.04

-

Nitrate 

(NO,)

a

.01

.01

a

.02

.03

.04

.04

.02

.04

.01

B

P

a Less than 0. 01 equivalent per million.

b Includes 0.10 equivalent per million carbonate (CO3 ).
RIO GRANDE BASIN--Continued 

RIO GRANDE AT UPPER PRESIDIO, TEX.

LOCATION.--At gaging station 7.8 river miles above the junction of the Rio Conchos, an

Tex. and Ojinaga, Chihuahua,"and 285.7 river miles below the American Dam at El Pas

DRAINAGE AREA.--35,000 square miles (United States and Mexico; from International Boun

Number 20).

RECORDS AVAILABLE. Chemical analyses, 1935 to 1954. 

REMARKS.--Chemical analyses by the U. S. Dept. Agriculture, Agricultural Research Serv

Records of discharge for water year October 1953 to September 1954 given in Interna

Numbers 23 and 24.

Chemical analyses water year October 1953 to Septemb

Month

October 1953

March

April

May

June

July

August

September

her 

of 

samples

1

1

7

8

3

15

6

Runoff 

(acrefeet)

159

\*V

(a)

(a)

(a)

289

1,650

6,360

3,650

24, 100

3,960

Silica 

(Si02) 

ppm

..

20

--

__

28

..

--

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

3.95

2.76 0.34

5.77

5.64

6.40 .78

4.28

10.84

Sodium 

(Na)

3.50

2.30

2.55

3.03

4.00

2.14

10.26

Potassium 

(K)

-.

0.13

--

__

.20

--

--

Bicarbonate 

(HCOj)

2.20

2.75

2.75

2.75

2.80

2.50

b 3.40

Sulfate 

(S0«)

..

1.66

--

__

7.03

--

--

Chloride 

(Cl)

1.15

1.00

.70

1.15

1.60

.75

11.10

Fluoride 

(F)

_.

0.04

--

__

.04

--

--

Nitrate 

(NO,)

..

0.07

--

__

.01

--

--

a No flow.

b Includes 0. 20 equivalent per million of carbonate (COS ).
RIO GRANDE BASIN Continued 

RIO GRANDE AT LANGTRY, TEX.

LOCATION.--At gaging station at Langtry, Tex., 24.1 river miles above the confluence 

miles below the American Dam at El Paso, Tex. 

DRAINAGE AREA. 79,375 square miles (United States and Mexico; from International Bou

Bulletin Number 20).

RECORDS AVAILABLE. Chemical analyses, 1944 to 1954. 

REMARKS. Chemical analyses by the U. S. Dept. Agriculture, Agricultural Research Ser

Riverside, Calif. Records of discharge for water year October 1953 to September 1

and Water Commission Water Bulletin Numbers 23 and 24.

Chemical analyses, water year October 1953 to Septem

Month

October 1953 

November 

December 

January 1954 

February 

April .......

May ........

July ........

September - -

Number 

of 

samples

7 

8 

10 

10 

11 

12 

b 

11 

16 

8 

15 

6

Runoff 

(acrefeet)

23,200 

22,600 

24,800 

27,300 

25,000 

23,300 

112,000 

74, 200 

258,000 

46,000 

217,000 

99,200

Silica 

(Si02) 

ppm

22

36

Equivalents per million

Calcium 

(Ca)

3.38 

3.85 

4.10 

4.21 

3.85 

3.88

3.80 

3.76 

4.28 

4.94 

4.59

Magnesium 

(Mg)

.69 

.47 

.84 

.90 

.87 

1.54

.51 

.38 

.94 

.74 

.88

Sodium 

(Na)

2.95 

3.45 

3.92 

4.20 

4.52 

4.20

1.27 

1.17 

2.62 

2.00 

3.36

Potassium 

(K)

0.14

18

Bicarbonate 

(HCO,)

3.00 

3.10 

a 3. 20 

a3.05 

a 2. 90 

a 2. 87

c3. 23 

3.20 

clS.10 

cS.OO 

C3.10

Sulfate 

(SOJ

3.56 

4.06 

4.77 

5.18 

5.30 

4.94

1.84 

1.61 

3.79 

4.23 

4.33

Chloride 

(Cl)

1.50 

1.65 

1.90 

2.10 

2.05 

1.88

.50 

.60 

1.10 

.55 

1.55

Fluoride 

(F)

0.07

.04

Nitrate 

(NOJ

0.04 

.07 

.05 

.04 

.03 

.04

.05 

.06 

.10 

0 

.02

a Includes 0.12 equivalent per million of carbonate (COj). 

b Samples broken in transit.

c Includes 0. 20 equivalent per million of carbonate (CO3). 

d Includes 0.10 equivalent per million of carbonate (CO3).
RIO GRANDE BASIN Continued

RIO GRANDE AT EAGLE PASS, TEX.

LOCATION. At gaging station 0.5 mile above the international highway bridge between E

754.6 river miles below the American Dam at El Paso, Tex.

DRAINAGE AREA.--125,502 square miles (United States and Mexico; from International Bou

RECORDS AVAILABLE. Chemical analyses, 1938 to 1954. 

REMARKS. Chemical analyses by the U. S. Dept. Agriculture, Agricultural Research Serv

Records of discharge for water year October 1953 to September 1954 given in Interna

Bulletin Numbers 23 and 24.

Chemical analyses, water year October 1953 to Septem

Month

October 1953.. 

November .... 

December .... 

January 1954. .

September . . .

Number 

of 

samples

26 

25 

0 

26 

24 

27 

25 

27 

d24 2 

e 7 

24 

23

Runoff 

(acrefeet)

59,370 

40,790 

146,820 

46,990 

41,470 

26,970 

219,000 

209,500 

,794,000 

277,900 

262,200 

178,000

Silica 

(SiOj) 

ppm

17 

20

Equivalents per million

Calcium 

(Ca)

4.

5.

4.06 

5. 

5. 

4. 

4. 

4. 

4.40 

5. 

5.

Magnesium 

(Mg)

66 

37

1.85 

97 

97 

82 

08 

08 

1.97 

04 

27

Sodium 

(Na)

2.85 

3.55

4.55 

5.12 

5.40 

2.65 

2.18 

2.10 

4.53 

2.96 

3.10

Potassium 

(K)

0.12 

16

Bicarbonate 

(HCO,)

2.80 

3.15

3.13 

b2. 93 

C2.77 

2.95 

2.70 

2.47 

f2.80 

2.90 

2.85

Sulfate 

(SOJ

3.65 

3.57

Chloride 

(Cl)

2.55 

2.90

3.75 

4.15 

4.40 

2.15 

1.75 

1.75 

4.60 

2.20 

2.15

Fluoride 

(F)

--

0.04 

.02

Nitrate 

(NO,)

--

0.04 

.09

a No samples obtained.

b Includes 0.10 equivalent per million of carbonate (COS).

c Includes 0.12 equivalent per million of carbonate (CO,).

d For period June 1

e For period July 2

f Includes 0. 30 equ
RIO GRANDE BASIN Continued 

RIO GRANDE AT ROMA, TEX.

LOCATION. At gaging station at international bridge between Roma, Tex. and Cd. Miguel 

miles above the confluence of the Rio San Juan from Mexico, and 992.0 river miles b

DRAINGAE AREA. 157,448 square miles (United States and Mexico; from International Bou

RECORDS AVAILABLE. Chemical analyses, 1933 to 1954.

REMARKS. Chemical analyses by the U. S. Department Agriculture, Agricultural Research 

Records of discharge for water year October 1953 to September 1954 given in Interna

Numbers 23 and 24.

Chemical analyses, water year October 1953 to Septem

Month

October 1953 

November. . . 

December . . 

January 1954 

February . . .

April ......

May .......

July .......

September . .

Number 

of 

samples

30 

28 

29 

30 

19 

4

5 

4 

5 

4 

4 

5

Runoff 

(acrefeet)

189,000 

76, 520 

77,350 

196,400 

295, 500 

271,100

141,600 

303,500 

346,900 

98,370 

144,400 

104,200

Silica 

(Si02) 

ppm

6 

16

Equivalents per million

Calcium 

(Ca)

2.59 

2.84 

2.90 

2.84 

2.89 

3.28

3.60 

3.65 

2.94 

2.59 

2. 68 

2.92

Magnesium 

(Mg)

0.45 

.66 

.64 

.60 

.71 

1.17

1.13 

1.06 

.96 

.51 

.60 

.76

Sodium 

(Na)

1.02 

1.50 

1.62 

1.62 

1.90 

2.92

3.25 

3.27 

2.32 

.99 

1.20 

1.60

Potassium 

<K)

0.11 

.11

Bicarbonate 

(HCO,)

2.10 

2.35 

2.30 

a 2. 40 

b2. 52 

2.70

2.85 

2.65 

2.40 

2.30 

2.35 

2.51

Sulfate 

(SOJ

1.17 

1.69 

1.63 

1.62 

1.85 

2.41

2.72 

2.78 

2.08 

1.03 

1.15 

1.47

Chloride 

(Cl)

0.70 

1.10 

1.20 

1.20 

1.25 

2.30

2.55 

2.60 

1.95 

.75 

.95 

1.35

Fluoride 

(F)

0.02 

.02

Nitrate 

(NO,)

0.12 

.09 

.04 

.04 

.05 

.04

.03 

.04 

.04 

.16 

.05 

.05

a Includes 0.16 equivalent per million of carbonate (CO,). 

b Includes 0.10 equivalent per million of carbonate (CO,).
RIO GRANDE BASIN Continued

PECOS RIVER BELOW ALAMOGORDO DAM, N. MEX

LOCATION. At gaging station, 1,200 feet downstream from Alamogordo Dam, li miles dow

of Guadalupe, De Baca County.

DRAINAGE AREA. 4,390 square miles, approximately, (contributing area). 

RECORDS AVAILABLE. --Chemical analyses: June 1937 to September 1954. 

EXTREMES, 1953-54. --Specif ic conductance: Maximum observed, 3,160 micromhos May 12; 

Percent sodium; Maximum, 14 Jan. 1-10, 21-31; minimum, 8 Apr. 1-10, Aug. 21-31. 

EXTREMES, 1937-54. Specific conductance: Maximum observed, 3,200 micromhos Jan. 14

Percent sodium: Maximum, 19 July 1, 3-10, 1947; minimum, 1 Feb. 21-28, 1950. 

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

available in district office at Albuquerque, N. Mex. 

WSP 1342.

Records of discharge for wat

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

Nov. 1-5 a ........

Nov. 12-20 a .....

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

Dec. 1, 5-10 a .... 

Dec. 11-20 .......

Dec. 21-31........

Jan. 1-10, 1954 ... 

Jan. 11-20...... ..

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

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

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

Feb. 21-28 .......

a No flow Nov. 6-1

Runoff 

(acrefeet)

1,340 

1,320 

1,430 

1.0 

3.8 

9.5

2.8 

8.9 

12 

4.0 

4.4 

4.2

3.0 

5.6 

3.8 

1, and Dec.

Silica 

(Si02) 

ppm

17 

14 

16 

14 

17 

17

17 

19 

20 

19 

16 

18

18 

17 

18 

2-4.

Equivalents per million

Calcium 

(Ca)

23.25 

24.55 

25.75 

21.86 

21.86 

22.41

22.41 

21.41 

22.21 

21.61 

22.41 

21.01

21.21 

20.71 

22.21

Magnesium 

(Mg)

5.10 

5.26 

5.67 

6.00 

6.09 

5.67

5.67 

5.43 

5.67 

6.09 

6.17 

6.09

6.58 

7.07 

5.84

Sodium 

(Na)

3.00 

3.30 

3.65 

3.78 

3.87 

3.91

4.00 

4.04 

4.22 

4.35 

4.30 

4.26

4.22 

4.26 

4.26

Potassium 

(K)

Bicarbonate 

(HCO,)

2.69 

2.72 

2-. 49 

2.34 

2.69 

2.54

2.54 

2.82 

2.62 

2.54 

2.92 

2.82

2.74 

2.80 

2.84

Sulfate 

(SOJ

26.02 

27.48 

29.35 

26.02 

25.82 

27.06

26.65 

25.61 

26.65 

26.23 

26.86 

25.19

25.82 

25.61 

26.65

Chloride 

(Cl)

2.71 

2.90 

3.27 

3.05 

3.13 

2.88

3.16 

3.05 

3.27 

3.30 

3.38 

3.27

3.36 

3.38 

3.44

Fluoride 

(F)

Nitrate 

(NO,)

0.02 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.00

.01 

.01 

.00
RIO GRANDE BASIN Continued 

PECOS RIVER BELOW ALAMOGORDO DAM, N. MEX.~C

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Mar. 1-10, 1954 .. 

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

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

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 21-31 ........

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

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

Aug. 21-31 .......

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

Sept. 11-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

76 

1,900 

1,640

15,920 

7,690 

1,340 

1,240 

1,270 

2,040

1,830 

1,080 

1,030 

1,230 

1,860 

2,100

2,240 

10,790 

2,180 

1,960 

1,640 

1,280

66, 500

Silica 

(Si02) 

ppm

17 

15 

18

18 

17 

19 

19 

23 

19

19 

23 

20 

22 

19 

19

17 

19 

17 

14 

16 

13

18

Equivalents per million

Calcium 

(Ca)

22.21 

29.54 

29.74

30.24 

30.94 

30.64 

30.89 

31.29 

20.81

19.61 

21.41 

22.60 

25.15 

23.00 

22.41

22.01 

19.41 

14.77 

13.97 

15.07 

14.37

24.85

Magnesium 

(Mg)

5.67 

4.85 

6.58

6.66 

6.74 

6.91 

7.32 

6.41 

3.54

3.87 

4.44 

4.44 

4.28 

4.44 

4.28

4.44 

5.10 

3.62 

3.21 

3.04 

3.12

5.43

Sodium 

(Na)

4.26 

4.35 

3.39

3.39 

3.52 

3.65 

3.96 

4.35 

3.17

3.00 

3.35 

3.61 

3.96 

3.65 

3.57

3.48 

3.17 

1.65 

1.87 

1.78 

1.78

3.26

Potassium 

(K)

Bicarbonate 

(HCOS)

2.85 

2.39 

2.51

2.51 

2.62 

2.39 

2.41 

2.56 

2.11

2.33 

2.43 

2. 36 

2.34 

2.36 

2.28

2.31 

2.62 

2.80 

2.08 

2.06 

2.26

2.47

Sulfate 

(SOJ

26.44 

32.89 

33.52

34.14 

34.56 

34.14 

34.77 

34.77 

22.48

21.44 

24.15 

24.77 

28.31 

26.02 

25.40

25.19 

22.07 

16.28 

15.82 

16.97 

15.64

27.90

Chloride 

(Cl)

3.44 

3.95 

4.06

4.06 

4.26 

4.29 

4.48 

4.37 

2.71

2.57 

2.85 

3.13 

3.30 

3.10 

2.93

2.96 

2.65 

.93 

1.24 

1.27 

1.38

3.27

Fluoride 

(F)

Nitrate 

(NO,)

0.01 

.00 

.02

.02 

.02 

.02 

.02 

.00 

.02

.01 

.01 

.01 

.01 

.02 

.01

.01 

.05 

.07 

.05 

.04 

.03

0.03
RIO GRANDE BASIN Continued

PECOS RIVER NEAR ARTESIA, N. MEX.

LOCATION. At gaging station at bridge on State Highway 83, 4.3 miles east of Artesia, 

Rio Penasco, and 17 miles north of McMillan Dam.

DRAINAGE AREA.--15,300 square miles, approximately, (contributing area). 

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1954. 

Water temperatures: April 1949 to September 1954. 

Sediment records: January 1949 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 14,600 micromhos June 18;

Percent sodium: Maximum, 62 Aug. 2; minimum, 21 Apr. 11-20. 

EXTREMES 1937-54. Specific conductance: Maximum observed, 17,200 micromhos Aug. 20,

Aug. 25, 1954.

Percent sodium: Maximum, 71 May 16, 1950; minimum, 12 Mar. 25-31, 1951.

REMARKS.--Values reported for dissolved solids are sums of determined constituents. R

available in district office at Albuquerque, N. Mex. Records of discharge for wate

WoP l<34fe.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 . . 

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

Oct 21-31.......

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

Nov. 11-20 ......

Nov. 21-30 ......

Dec. 1-10...

Dec. 11-20..

Dec. 21-31. ......

Runoff 

(acrefeet)

240 

405 

746

982 

1,060 

1,350

1,360 

1,080 

1,160

Silica 

(Si02) 

ppm

19

17 

17

15

17 

18

16 

18 

18

Equivalents per million

Calcium 

(Ca)

36.23 

32.53 

28.64

27.74 

28.14 

26.85

26.55 

28.14 

29.04

Magnesium 

(Mg)

24.51 

22.29 

19.08

15.71 

16.53 

16.69

16.37 

17.43 

17.93

Sodium 

(Na)

67.40 

58.70 

SO. 88

42.61 

43.05 

40.01

39.66 

44.35 

52.62

Potassium 

(K)

Bicarbonate 

(HCOj)

2.46 

2.46 

a2.49

2.26 

2.72 

3.21

3.31 

3.64 

3.47

Sulfate 

(SOJ

51.63 

46.01 

41.64

37.27 

39.14 

36.85

35.81 

37.47 

40.18

Chloride 

(Cl)

73.61 

66.28 

55.56

45.69 

46.82 

44.84

44.56 

49.36 

58.10

Fluoride 

(F)

Nitrate 

(NO,)

0.05

.05 

.07 

.10

.10 

.11 

.08

a Includes 0. 33 equivalents per million of carbonate (CO3 ).
RIO GRANDE BASIN Continued

PECOS RIVER NEAR ARTESIA, N. MEX. Continu

Chemical analyses, water year October 1953 to September 195

Date 

of 

collection

Jan. 1-10, 1954 .. 

Jan. 11-20.......

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

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

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

Feb. 21-28. ......

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

Mar. 11-20 ......

Mar. 21-31 ......

Apr. 1-7. ........

Apr. 8-10. .......

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

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

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

May 11-17 .......

May 18 ..........

May 19-23 .......

May 24-31 .......

Runoff 

(acrefeet)

1,120 

1,040 

1,040

950 

746 

682

882 

793

754

252 

3,240 

11,080 

1,100

510 

307 

472 

16, 180 

1.690

Silica 

(Si02) 

ppm

17 

18 

16

17 

16 

14

14 

16 

11

13 

27 

18 

18

18 

17 

21 

17 

24

Equivalents per million

Calcium 

(Ca)

28.64 

26.45 

26.95

27.94 

28.94 

28.54

28.54 

30.09 

31.59

33.73 

31.49 

30.89 

32.88

30.69 

34.73 

31.89 

21.21 

29.34

Magnesium 

(Mg)

18.26 

18.09 

17.02

19.33 

19.16 

19.00

19.57 

19.00 

20.48

22.20 

8.80 

7.81 

12.34

18.75 

17.93 

14.88 

4.28 

10.12

Sodium 

(Na)

53.92 

53.05 

57.83

53.92 

57.40 

56.09

56.09 

58.27 

67.40

76.10 

16.09 

10.44 

33.40

51.31 

68.70 

46.53 

12.52 

33.48

Potassium 

(K)

Bicarbonate 

(HCOJ

3.21 

3.05 

2.93

2.79 

2.85 

2.75

2.84 

2.90 

2.61

2.65 

2.97 

2.69 

2.11

2.67 

2.52 

2.74 

2.43 

2.61

Sulfate 

(S0<)

41. 22 

39.97 

41.22

40.39 

42.47 

42.89

43.30 

44.55 

47.68

52.05 

38.31 

36.64 

43.10

45.80 

51.21 

44.55 

23.94 

36.43

Chloride 

(Cl)

58.10 

55.84 

59.23

58.94 

60.64 

60.07

59.23 

59.79 

67.41

76.43 

14.10 

9.59 

32.72

51.61 

69.66 

47.10 

11.99 

33.84

Fluoride 

(F)

Nitrate 

(NO,)

0.07 

.04

.12

.02 

.04 

.02

.02

.04 

.08 

.06

B
June 1-10/1954 .. 

June 11-20.......

June 21-30.......

July 1-10 .......

July ll-13b ......

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

Aug. 3, 10 ......

Aug. 4, 8, 9b . . . . 

Aug. 11-14, 16-23

Aug. 15 .........

Aug. 24, 26-28... 

Aug. 25 .........

Aug. 29-31 ......

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

Sept. 11-13 ......

Sept. 14-20 ......

Sept. 21-30 ......

Total or 

weighted average

520 

361

110

44

3.2

15

553

2,440 

4,340

950

6,010 

4,620

920

1,280

133

290

347

74, 180

23 

21

24

22

16

34

14

17 

26

26

19 

18

16

20

20

21

21

19

32.29 

37.87

37.87

37.03

40.92

40.92

10.58

19.21 

23.95

28.14

11.58 

5.94

15.47

21.01

25.75

33.18

34.33

23.85

17.43 

18.67

19.82

19.49

21.38

19.41

1.97

5.26 

4.85

7.24

3.04 

.67

4.28

7.65

13.49

19.49

21.38

8.80

53.05 

80.45

79.14

73.49

87.40

98.71

7.91

26.09 

10.44

26.26

6.09 

2.61

11.35

23.74

43.92

70.01

75.66

23.44

2.77 

2.90

2.75

2.15

1.56

2.18

1.54

2.23 

1.92

2.38

2.47 

3.21

2.16

2.25

2.08

2.33

2.44

2.62

45.18 

54.34

54.55

54.96

59.96

59.33

11.62

23.53 

28.31

34.14

13.57 

4.06

18.84

27.48

37.89

47.68

50.80

29.98

54.71 

79.82

81.51

74.46

89.12

98.15

7.47

25.38 

9.45

25.66

5.05 

1.95

10.44

22.42

44.28

73.61

79.25

23.78

.35

..

.04

.04 

.04

.03

.04 

.02

.06

.06

.09-

._

b No flow July 14-Aug. 1, Aug. 5-7.
RIO GRANDE BASIN--Continued

PECOS RIVER BELOW RED BLUFF DAM NEAR ORLA

LOCATION.--Just below dam, 3 miles upstream from Salt (Screwbean) Draw, 5 miles northwe

upstream from gaging station near Orla.

DRAINAGE AREA. 21,300 square miles, approximately (contributing area), above gaging st

RECORDS AVAILABLE.--Chemical analyses: July 1937 to September 1954.

Water temperatures: March 1953 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 23,900 micromhos Oct. 1; mini

Percent sodium: Maximum, 73 Oct 1-16; minimum, 63 July 1-31, Aug. 1-31. 

EXTREMES, 1937-54. Specific conductance: Maximum daily, 24,200 micromhos Sept. 28, 30

June 2, 1948.

Percent sodium: Maximum, 74 Sept. 17-30, 1953; minimum, 9 Aug. 17-19, 1944.

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

samples available in district office at Austin, Tex. Records of discharge for gagin

1953 to September 1954 given in WSP 1342. Mean discharges values reported are adjus

Draw which enters Pecos River between sampling point and gaging station.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-16, 1953 .. 

Oct. 17-31 .......

Nov. 1-30........

Dec. 1-31........

Jan. 1-31, 1954 .. 

Feb. 1-28........

Mar. 1-31 .......

Apr. 1-30........

May 1-19, 28-31. . May 20-27. .......

June 8-30 ........

July 1-31 ........

Aug. 1-31........

Sept. 1-30 .......

Total or 

weighted average

Runoff 

(acrefeet)

384 

407 

855 

867 

629

1,300 

14, 140 

1,010 

482 

4,880

359 

8,210 

12,820 

8,820 

8,810

63,970

Silica 

(Si02) 

ppm

15 

13 

11 

11 

10

8.8 

7.8 

9.6 

11 

8.2

17 

11 

12 

12 

14

11

Equivalents per million

Calcium 

(Ca)

39.17 

36.78 

34.18 

28.34 

26.95

26.85 

27.54 

28.24 

28.44 

27.00

27.15 

24.55 

23.25 

25.35 

17.76

24.85

Magnesium 

(Mg)

29.52 

25.33 

22.86 

19.24 

18.34

17.93 

18.50 

18.75 

18.59 

14.88

17.60 

12.75 

11.43 

11.35 

7.48

13.73

Sodium 

(Na)

186 

127 

108 

89 

101

97 

101 

96 

94

75

90 

66 

60 

62 

45

73

Potassium 

(K)

65 

38 

96 

07 

54

59 

.26 

.94 

.85 

.82

.56 

.33 

.11 

.24 

.22

.92

Bicarbonate 

(HCOS)

1.80 

1.59 

1.44 

1.34 

1.97

1.74 

1.75 

1.84 

1.97 

1.70

2.29 

1.74 

1.69 

1.75 

1.74

1.74

Sulfate 

(SOJ

62.04 

57.04 

52.88 

43.93 

41.64

41.64 

42.89 

43.10 

42.89 

38.72

41.64 

34.77 

33.31 

33.73 

22.90

35.81

Chloride 

(Cl)

191.50 

130.86 

111.68 

91.38 

103.22

98.99 

102.66 

98.99 

97.02 

77.28

91.38 

67.12 

59.79 

63.46 

45.69

74.74

Fluoride 

(F)

Nitrate 

(N03)

0.13
RIO GRANDE BASIN Continued

PECOS RIVER NEAR COMSTOCK, TEX.

LOCATION.--At gaging station at the Pecos High Bridge on the railroad 12 miles northwe

fluence with the Rio Grande. The river enters the Rio Grande 638.2 river miles bel

at Comstock destroyed during flood of June-July 1954. Sampling site changed to "Ne

RECORDS AVAILABLE. Chemical analyses, 1936 to 1954.

REMARKS. Chemical analyses by the U. S. Dept. of Agriculture, Agricultural Research S

Calif. Records of discharge for water year October 1953 to September 1954 given in 

Water Bulletin Numbers 23 and 24.

Chemical analyses water year October 1953 to Septembe

Month

October 1953.

November

December

January 1954.

February. . . . March. ......

May ........

July. ........

September . .

her 

of 

Samples

14

14

16

6

4

9 

b

5

0

<!

4

6

Runoff 

(acrefeet)

13, 600

9,000

9,300

9,210

7,800

8,710

7Q Kf\f\

46, 400

1, 756, 000

48, 500

22, 200

15, 100

Silica 

(Si02) 

ppm

__

--

--

20

..

--

17

--

Equivalents per million

Calcium 

(Ca)

5.54

5.79

7.18

8.10

7.85

7.85

7.22

3.30

7.86

6.70

5.98

Magnesium 

(Mg)

3.60

4.53

5.42

6.56

6.92

6.84

3.60

.55

4.72

4.64

4.37

Sodium 

(Na)

11.20

13.60

15.80

19.80

21.00

20.80

14.40

1.22

13.80

12.60

11.90

Potassium 

(K)

_.

--

--

0.34

.-

--

.20

Bicarbonate 

(HCOS)

2.75

2.85

2.97

2.85

a 2. 40

2.10

c 2.75

<*2. 55

e 3.00

2.63

2.73

Sulfate 

(SOJ

5.81

6.87

8.35

10.32

10.94

10.84

7.58

1.11

7.79

7.26

6.50

Chloride 

(Cl)

11.90

14.20

17.20

21.50

22.65

22.80

15.15

1.40

15.55

14.45

13.10

Fluoride 

(F)

..

--

--

0.05

-.

--

.04

--

Nitrate 

(NO,)

0.07

.05

.04

.02

.02

.01

.06

.06

.15

.09

.05

B

a Includes 0. 10 equivalent per million carbonate (CO3 ).

b Samples broken in transit.

c Includes 0. 22 equivalent per million carbonate (CO3 ).

d Includes 0.20 equivalent per 

e Includes 0.24 equivalent per 

f See relocation of station und
PART 9. COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM 

COLORADO RIVER NEAR GLENWOOD SPRINGS, CO

LOCATION. At Shoshone power plant, 6 miles upstream from gaging station at Glenwood Sp

upstream from Roaring Fork.

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

RECORDS AVAILABLE. Chemical analyses: October 1941 to September 1954.

Water temperatures: May 1949 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,160 micromhos Dec. 26; minim

Percent sodium: Maximum, 51 Mar. 16; minimum, 19 Sept. 27. 

EXTREMES, 1941-54.--Specific conductance: Maximum daily, 2,260 micromhos Aug. 10, 1947

Percent sodium: Maximum, 51 Mar. 21-31, 1944, Mar. 16, 1954; minimum, 13 June 11-20, 

REMARKS.--Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Salt Lake City, Utah. Discharge records for gaging station at 

to September 1954 given in WSP 1343. No appreciable inflow between Shoshone power p

of local rains.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

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

Dec. 11-13, 16-20

T\0 « 1 A 1 R

Dec. 21-25. .......

Dec. 26-31. ......

Runoff 

(acrefeet)

21, 860 

21,720 

20,390

16, 170 

13,580 

5,100 

19,740

18, 960 

17, 670 

3,080 

9,430 

8,800

Silica 

(Si02) 

ppm

12

Equivalents per million

Calcium 

(Ca)

2.94 

3.04 

4.04

4.39 

4.29 

2.99 

3.69

3.54 

2.99 

4.14 

3.09 

4.19

Magnesium 

(Mg)

0.90 

1.23 

1.15

1.32 

1.48 

.90 

.99

1.07 

.82 

1.15 

.90 

1.15

Sodium 

(Na)

3.00 

3.04 

3.13

3.91 

3.87 

2.61 

3.35

3.30 

2.65 

4.65 

2.96 

5.09

Potassium 

(K)

0.07

Bicarbonate 

(HCOS)

2.13

Sulfate 

(SOJ

2.33

Chloride 

(Cl)

2.88

Fluoride 

(F)

0.01

Nitrate 

(N0a)

0.01

B
Jan. 1 8, 10, 1954

Jan. 11-19.......

Jan. 20 a ........

Jan. 21-22.......

Jan. 23-31.......

Feb. 1, 3-10.....

Feb. 2. ..........

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

Feb. 21-25, 27-28 

Feb. 26 .........

Mar. 1-2 ........

Mar. 3-10 .......

Mar. 11-15, 17-20 

Mar. 16 .........

Mar. 21-31 ......

Apr. 1-7, 9-10... 

Apr. 8 ..........

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

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

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

May 11-20 .......

May 21-31 .......

16, 590 

2,860

15, 140

2,480

6,050

18, 640

15, 530

1,200

16, 770

12, 900 

1,940

2,920

20, 800

16,920 

1,320

20, 520

24, 180 

4,440

28, 070

29,570

29, 810

56, 730

59, 480

--

13

__

--

--

-

12

3.44 

2.30

3.29

2.

2.10

2.74

3.09

3.99

2.99

2.74 

3.54

3.49

2.40

2.69 

3.44

2.79

2.54 

1.95

2.30

2.20

2.25

1.85

2.10

.99 

.65

1.23

34

.57

.75

.90

1.15

.99

.81 

1.15

1.32

.80

.90 

1.23

.90

.76 

.52

.90

.60

.54

.57

.63

3.83 

1.91

3.87

1.87

2.74

3.39

4.91

3.48

3.00 

4.78

4.83

2.65

3.00 

4.83

3.13

2.61 

1.30

2.30

2.09

2.09

1.09

1.39

07

05

2.29 

1.84

1.97

2.42 

1.39

1.48

3.67 

1.41

2.03

.01

.02

.01

.09

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

COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO. 

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

June 1-10, 1954 ..

June 21-30.......

July 21-31 .......

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

Aug. 11-20 ......

Aug. 21-31. ......

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

Sept. 11-20 ......

Sept. 21-26, 28-30 

Sept. 27 .........

Total or 

weighted average

Runoff 

(acrefeet)

31,280 

29, 120 

28, 150

26, 360 

27,610 

" 29, 100

23, 670 

25, 940 

24, 500

21,820 

17,490 

17, 230 

2,260

b 883 400

Silica 

(Si02) 

ppm

13

Equivalents per million

Calcium 

(Ca)

2.69 

2.84 

2.89

2.99 

3.24 

3.19

2.99 

3.19 

3.19

3.14 

3.44 

3.94 

3.84

2 89

Magnesium 

(Mg)

0.82 

.82 

.73

.77 

.82 

1.32

.76 

.79 

.90

.99 

.99 

.99 

1.07

0 an

Sodium 

(Na)

2.30 

2.44 

2.70

2.48 

2.48 

2.52

3.04 

2.74 

3.17

3.13 

3.17 

2.91 

1.17

">. fiS

Potassium 

(K)

0.07

Bicarbonate 

(HC03)

2.39

Sulfate 

(SOJ

2.14

Chloride 

(Cl)

2.59

Fluoride 

(F)

0.02

Nitrate 

(NO,)

0.01

B

b Represents 99. 7 percent of runoff for water year October October 1953 to September 1954.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CISCO, UTAH

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

DRAINAGE AREA.--24,100 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1954.

Water temperatures: May 1949 to September 1954.

Sediment records: May 1930 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 2,610 micromhos Sept. 7; mini

Percent sodium: Maximum, 50 Jan. 18, 20-21, 24, Feb. 2, 5, 8, 10, 12, 15; minimum, 3

EXTREMES, 1941-52, 1953-54. Specific conductance: Maximum daily, 4,100 micromhos Sept

June 15, 1952.

Percent sodium (1950-52, 1953-54): Maximum, 50 Jan. 18, 20-21, 24, Feb. 2, 5, 8, 10, 

REMARKS.--Values reported for dissolved solids are sums of determined constituents. R

samples available in district office at Salt Lake City, Utah; Records of discharge 

1954 given in WSP 1343.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-7, 9, 15, 

1953 ...........

Oct. 19, 21, 23, 

28, 30 .........

Nov. 2, 4, 6, 9, 

12-13 ..........

Nov. 16, 18, 20, 

23, 30 .........

Dec. 2, 4, 8, 11, 

14 .............

Dec. 16-17, 19, 

21, 23, 28, 30 ..

Jan. 4, 6, 8, 11, 

13, 15, 1954.... 

Jan. 18, 20-21,24 

Feb. 2, 5, 8, 10, 

12, 15..........

Runoff 

(acrefeet)

34, 670 

40,900 

41,690 

34,290 

28,050 

39,590

31,700 

23,700

31,580

Silica 

(Si02) 

ppm

14 

15 

15 

17 

17 

17

15 

15

12

Equivalents per million

Calcium 

(Ca)

9.28 

8.88 

7.63 

6.79 

5.79 

6.64

6.64 

5.94

5.69

Magnesium 

(Mg)

6.83 

5.92 

5.35 

4.61

4.77 

4.77

4.52 

4.19

4.28

Sodium 

(Na)

10.04 

8.13 

8.17 

8.83 

9.44 

10.04

10.39 

10.39

10.35

Potassium 

(K)

0.20 

.22 

.21 

.19 

.19 

.21

.23 

.23

.21

Bicarbonate 

(HCO,)

3.51 

3.44 

3.61 

3.21 

2.79 

3.56

3.65 

3.34

3.23

Sulfate 

(SOJ

16.61 

15.70 

12.82 

11.66 

11.08 

10.95

10.35 

9.78

9.78

Chloride 

(CD

5.50 

3.95 

4.79 

5.30 

5.92 

6.66

7.30 

7.25

6.97

Fluoride 

(F)

Nitrate 

(NO,)

0.23 

.18 

.19 

.19 

.19 

.21

.21 

.21

.19
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER NEAR CISCO, UTAH Continued 

Chemical analyses, water year October 1953 to September--C

Date 

of 

collection

Feb. 17, 19, 23, 

26, 1954 .......

Mar. 21-31 ......

Apr. 1-7 ........

Apr. 9-10 ......

May 1-11 ........

May 12-20 .......

May 21-30 ......

May 31, June 1-10

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

July 11-20 .......

July 21-31 .......

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

Aug. 21-31.......

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

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

20,030 

52,130 

51,510 

56, 990

35,400 

16, 900 

72, 540 

88, 220 

89, 630 

143,800 

190,900 

98,920

61,880 

67, 520 

48,930 

42,900 

58, 120

25,430 

39,870 

33, 180 

42, 290 

66, 450 

62,580

al, 772,000

Silica 

<Si02) 

ppm

13 

12 

11 

12

9.9 

10 

17 

16 

16 

14 

11 

12

9.1 

8.6 

12 

12 

13

13 

14 

13 

12 

15 

14

13

Equivalents per million

Calcium 

(Ca)

5.44 

5.44 

5.14 

5.39

5.49 

4.34 

4.19 

3.79 

4.94 

3.49 

3.29 

4.69

5.94 

5.69 

7.14 

7.88 

7.88

9.53 

9.68 

9.88 

10.48 

8.83 

9.88

5.99

Magnesium 

(Mg)

4.28 

3.95 

3.70 

4.36

3.87 

2.55 

2.47 

2.14 

2.96 

1.81 

1.73 

2.88

3.95 

3.62 

4.61 

5.43 

4.85

7.32 

6.66 

6.99 

7.24 

5.35 

5.35

3.87

Sodium 

(Na)

9.09 

8.52 

7.96 

8.31

8.57 

5.09 

4.48 

3.70 

4.78 

2.65 

2.35 

4.35

6.13 

5.22 

7.00 

7.70 

6.83

10.22 

9.74 

9.61 

10.83 

7.65 

8.70

6.44

Potassium 

(K)

0.19 

.17 

.17 

.18

.18 

.14 

.12 

.10 

.10 

.08 

.07 

.09

.14 

.13 

.16 

.17 

.17

.18 

.21 

.20 

.21 

.17 

.21

0.15

Bicarbonate 

(HCOS)

2.88 

3.15 

2.98 

3.15

3.05 

2.85 

2.84 

2.62 

2.88 

2.43 

2.26 

2.57

2.82 

2.69 

3.02 

3.18 

3.31

3.06 

3.41 

3.43 

3.57 

3.61 

3.75

2.97

Sulfate 

(SOJ

9.72 

 8.54 

8.33 

8.87

8.89 

5.54 

5.39 

4.91 

6.95 

3.96 

3.75 

6.85

9.68 

8.68 

11.72 

13.43 

12.70

19.20 

17.97 

18.45 

19.69 

14.86 

lkv91

9.51

Chloride 

(Cl)

6.09 

5.92 

5.36

5.75

5.81 

3.44 

2.71 

2.14 

2.68 

1.52 

1.30 

2.26

3.30 

2.96 

3.72 

4.23 

3.30

4.51 

4.57 

4.37 

5.02 

3.38 

4.23

3.67

Fluoride 

(F)

Nitrate 

(NO,)

0.21 

.16 

.16 

.16

.18 

.09 

.09 

.08 

.09 

.06 

.06 

.07

.09 

.09 

.16 

.18 

.18

.23 

.18 

.23 

.18 

.15 

.10

0.13

a Represents 76 percent of runoff for water year October 1953 to September 1954.
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER AT LEES FERRY, ARIZ.

LOCATION. At gaging station at head of Marble Gorge at Lees Ferry, Coconino County, j

from Utah-Arizona State line, 61.5 miles upstream from Little Colorado River, and 7

DRAINAGE AREA. 107,900 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: January to July 1926, October 1926 to June 192

to October 1945, October 1947 to September 1954. 

Water temperatures: July 1949 to September 1954.

Sediment records: October 1928 to December 1933, November 1942 to September 1944, O

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 2,040 micromhos Oct. 17, 2

Percent sodium: Maximum, 44 Apr. 1-10; minimum, 28 May 21-31. 

EXTREMES, 1928-30, 1942-45, 1947-54. Specific conductance (1942-45, 1947-54): Maximu

observed, 318 micromhos June 9, 1948.

Percent sodium: Maximum, 46 Mar. 2, 4, 7, 10, 1944; minimum, 21 June 21-30, 1949, J

REMARKS.--Values reported for dissolved solids are sums of determined constituents. R

available in district office at Albuquerque, N. Mex. Records of discharge for wate

WSP 1343.

Chemical analyses, water year October 1953 to Septem

Date

of

collection

Oct. 1-10, 1953 ...

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

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

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

Dec. 11-20........

Dec. 21-31........

Jan. 1-10, 1954 ...

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

Runoff

(acrefeet)

63,650

79,860

132, 300

141,100

140, 500

131,900

95,720

113,200

84,080

99,740

134. 600

Silica

(Si02)

ppm

11

11

13

19

1 9

12

13

14

15

14

14

13

Equivalents per million

Calcium 

(Ca)

7.09

7.78

7.78

7.19

6

9A

6.09

5.89

5.89

6.04

6.09

6.04

5.34

Magnesium 

(Mg)

5.26

5.02

4.28

4.11

3.95

4

flQ

3.87

3.95

4.19

4.11

4.52

3.73

Sodium 

(Na)

8.26

6.91

6.74

6.83

6.61

6.87

7.74

7.44

8.00

6.70

Potassium 

(K)

0.20

.20

.20

.18

.16

.17

.15

.16

.17

.16

Bicarbonate 

(HCO,)

3.29

"1 41

3.38

3.61

3.67

3 RQ

3.69

3 Q1

3.85

4.16

4.15

3.83

Sulfate 

(SOJ

13.57

14.18

13.22

12.28

10.56

9 QQ

9.87

9.62

10.31

9.95

10.18

8.54

Chloride 

(CI)

3.75

3.72

3.33

2.62

<i no

3.16

3.05

3.24

3.98

3.78

4.17

3.64

Fluoride 

(F)

0.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

.02

Nitrate 

(NO,)

0.08

.10

.13

.10

no

.08

.09

.09

.11

.10

.15

.09
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER AT LEES FERRY, ARIZ. Con

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Feb. 1-10, 1954... 

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

Feb. 21-28........

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

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

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

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

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

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

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

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

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

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 .......

Total or 

weighted average

Runoff 

(acrefeet)

117,100 

123,800 

100,900 

117,810 

116,200 

158,600

127, 700 

186,100 

232, 400 

274, 100 

351,000 

651,400

379,500 

218,900 

193,300 

238,500 

183,300 

225,500

127,200 

89, 690 

104, 100 

65,100 

167,900 

155, 700

6,101,000

Silica 

(SiOj,) 

ppm

13 

14 

12 

12 

12 

12

13 

11 

13 

14 

14 

11

14 

14 

12 

14 

14 

17

18 

15 

15 

14 

14 

16

13

Equivalents per million

Calcium 

(Ca)

4.84 

5.59 

5.29 

5.24 

5.14 

4.89

4.89 

4.54 

3.64 

3.34 

3.24 

2.79

3.04 

3.64 

3.89 

4.24 

3.94 

5.64

5.19 

5.89 

6.74 

6.49 

8.73. 

9.63

4.89

Magnesium 

(Mg)

3.62 

3.45 

3.45 

3.45 

3.21 

2.96

3.21 

2.88 

1.89 

1.81 

1.64 

1.32

1.23 

1.73 

2.06 

1.89 

1.73 

2.06

2.30 

2.71 

3.21 

4.03 

4.28 

3.62

2.71

Sodium 

(Na)

6.26 

6.78 

6.35 

6.48 

6.44 

5.91

6.52 

5.57 

3.61 

2.87 

2.70 

1.65

1.74 

2.74 

3.44 

3.22 

3.04 

4.57

4.22 

5.09 

6.31 

6.48 

6.96 

6.26

4.74

Potassium 

(K)

0.16 

.14 

.15 

.16 

.18 

.16

.15 

.15 

.13 

.14 

.12 

.12

.09 

.11 

.12 

.12 

.11 

.15

.16 

.17 

.19 

.18 

.22 

.23

0.15

Bicarbonate 

(HCO9)

3.52 

3.70 

3.75 

3.61 

3.64 

3.54

3.51 

3.33 

2.85 

3.02 

2.74 

2.65

2.82 

2.85 

2.84 

3.05 

2.93 

3.79

3.44 

3.44 

3.54 

3.31 

4.21 

4.06

3.29

Sulfate 

(SOJ

8.16 

8.97 

8.35 

8.45 

8.12 

7.56

8.20 

7.08 

4.83 

3.98 

3.71 

2.52

2.64 

4.14 

5.08 

5.00 

4.56 

7.02

6.79 

8.20 

10.01 

10.60 

12.87 

13.30

7.01

Chloride 

(Cl)

3.22 

3.41 

2.99 

3.24 

3.41 

2.93

3.07 

2.74 

1.55 

1.02 

1.07 

.68

.71 

1.24 

1.69 

1.38 

1.35 

1.66

1.72 

2.17 

2.71 

2.90 

2.74 

2.14

2.12

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.03 

.02

.03 

.03 

.03 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.03 

.03

0.02

Nitrate 

(NO,)

0.09 

.07 

.06 

.05 

.05 

.06

.05 

.05 

.03 

.03 

.03 

.04

.02 

.02 

.03 

.05 

.05 

.05

.10 

.08 

.09 

.10 

.07 

.09

0.06
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 Brig

m^lrv S°n 'i^C onnn° Count y.- 26 miles downstream from Little Colorado River, an

DRAINAGE AREA. 137,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1925 to November 1942, September 1943 

Water temperatures: October 1936 to October 1942, September 1943 to September 1954 

i^D^f n^£!S0£ dS : October 1925 to November 1942, September 1943 to September 1954

 S sod5iumf "MaS^mum!C48°AprCt l-lS! minS? 2°9lS Ma72di-3i 180 miCr°mh°S °Ct ' M; 

EXTREMES, ^1937-42, 1943-54. -Specif ic conductance: Maximum observed, 2,900 micromhos 

nt ?»?,S' (1941;4H > * 194:i' 54) i Max ' 48 Sept - n-20 ' 1942 ' APr " J-W' 1954 

a liable in disKS? of?L^^°4 Th S° lldS T MUmS ° f det * ined »»tituents. 

TOP 1343? dlstrict offlce at Albuquerque, N. Mex. Records of discharge for wat

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 .. . 

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

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

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

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

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

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

Dec. 11-20...... . .

Dec. 21-31 .......

Jan. 1-10, 1954 . . . 

Jan. 11-20... .....

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

Feb. 1-10....

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

Feb. 21-28 .......

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

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

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

Runoff 

(acrefeet)

69,760 

82,410 

172, 800 

136,700 

144, 800 

146,800

135,040 

104,000 

120,300 

88,460 

106,000 

138, 400

123,500 

124,400 

104, 800 

124,400 

122,700 

17& 200

Silica 

(Si62) 

ppm

11 

12 

14 

14 

14 

13

14 

15 

14 

14 

15 

14

14 

13 

13 

14 

15 

12

Equivalents per million

Calcium 

(Ca)

7.19 

7.53 

8.18 

7.83 

6.99 

6.44

5.89 

5.79 

6.39 

5.89 

6.59 

5.79

5.24 

5.29 

5.14 

5.49 

5.29 

5.24

Magnesium 

(Mg)

4.85 

5.02 

4.44 

4.44 

4.19 

4.11

4.11 

4.11 

4.28 

4.36 

4.19 

3.78

3.45 

3.78 

3.70 

3.54 

3.45 

2.96

Sodium 

(Na)

9.74 

9.65 

9.13 

8.00 

7.83 

7.48

7.83 

7.91 

8.78 

8.61 

9.39 

7.91

7.57 

7.96 

7.74 

7.57 

7.78 

7.09

Potassium 

(K)

0.25 

.28 

.26 

.23 

.25 

.21

.17 

.17 

.19 

.19 

.18 

.17

.16 

.16 

.17 

.16 

.17 

.16

Bicarbonate 

(HCOS)

4.10 

4.26 

4.26 

4.23 

4.52 

4.29

3.95 

4.05 

4.29 

4.44 

4.57 

4.15

3.80 

3.87 

3.87 

3.97 

3.82 

4.05

Sulfate 

(SOJ

12.20 

12. 68 

13.16 

12.49 

10.58 

9.85

9.58 

9.31 

9.97 

9.31 

10.16 

8.74

8.10 

8.66 

8.62 

8.29 

7.85 

7.41

Chloride 

(Cl)

5.78 

5.58 

4.60 

4.00 

4.12 

3.98

4.29 

4.63 

5.42 

5.27 

5.70 

4.82

4.60 

4.63 

4.32 

4.29 

4.74 

3.98

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

Nitrate 

(NO,)

0.07 

.06 

.08 

.10 

.09 

.08

.11 

.07 

.09 

.12 

.12 

.12

.11 

.10 

.09 

.08 

.08 

.07
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER NEAR GRAND CANYON, ARIZ . Con

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Apr. 1-10, 1954... 

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

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

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

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

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

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

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

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

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

July 21-31 ........

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

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

Aug. 21-31. .......

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

Sept. 11-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

145,700 

189,600 

230,400 

272,300 

325,000 

613,500

384,700 

224,600 

188,000 

223,800 

188, 200 

255,600

141,700 

92, 270 

115,100 

72,620 

172,600 

169,800

6,229,000

Silica 

(Si02) 

ppm

13 

13 

13 

16 

17 

16

14 

13 

13 

13 

13 

16

16 

14 

15 

16 

17 

18

14

Equivalents per million

Calcium 

(Ca)

5.19 

4.94 

4.14 

3.94 

3.94 

3.59

3.29 

3.74 

4.34 

4.44 

4.09 

5.14

6.04 

5.49 

7.14 

6.74 

8.53 

8.23

5.24

Magnesium 

(Mg)

2.88 

2.88 

2.14 

1.81 

1.81 

1.56

1.23 

1.64 

2.06 

2.06 

1.81 

1.89

2.47 

2.63 

3.29 

3.54 

4.11 

3.45

2.80

Sodium 

(Na)

7.48 

6.52 

4.48 

3.48 

3.44 

2.17

2.13 

3.39 

4.30 

4.00 

3.74 

5.96

5.78 

6.26 

7.78 

8.48 

7.83 

7.48

5.74

Potassium 

(K)

0.16 

.17 

.13 

.11 

.12 

.10

.09 

.11 

.13 

.14 

.15 

.16

.19 

.18 

.21 

.23 

.23 

.24

0.16

Bicarbonate 

(HC03)

4.08 

3.90 

3.51 

3.57 

3.43 

3.52

2.97 

2.93 

3.06 

3.43 

3.28 

4.00

4.02 

3.79 

3.95 

4.23 

4.20 

4.49

3.79

Sulfate 

(SOJ

7.49 

7.00 

4.89 

3.98 

4.04 

2.77

2.56 

3.91 

5.18 

5.00 

4.35 

6.54

7.35 

6.93 

10.18 

9.35 

12.41 

11.39

6.97

Chloride 

(Cl)

4.12 

3.55 

2.37 

1.81 

1.81 

1.07

1.13 

1.97 

2.45 

2.23 

2.14 

2.62

2.88 

3.69 

4.06 

5.05 

3.75 

3.22

3.13

Fluoride 

(F)

0.02 

.02 

.03 

.02 

.02 

.02

.01 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.03 

.03 

.02 

.02

0.02

Nitrate 

(N03)

0.07 

.07 

.06 

.06 

.06 

.04

.04 

.04 

.05 

.06 

.07 

.02

.11 

.08 

.14 

.18 

.03 

.01

0.07
COLORADO RIVER MAIN STEM Continued 

COLORADO RIVER BELOW HOOVER DAM, ARIZ.-N

LOCATION.--At Hoover Dam, Ariz.-Nev. state line between Mohave County, Ariz., and Clar

gaging station.

DRAINAGE AREA. 167,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: November 1939 .o September 1954.

Water temperatures: October 1941 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,090 micromhos Mar. 15-17; 

Percent sodium: Maximum, 39 Mar. 11-20, 21-31; minimum, 33 July 11-20. 

EXTREMES, 1939-54. Specific conductance: Maximum daily, 1,250 micromhos Mar. 2, 1941

Percent sodium (1941-44, 1950-54): Maximum, 41 during several periods in 1951 and 1

June 12-17, 19-20, 1944. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Salt Lake City, Utah. Records of discharge for wate

in WSP 1343.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

Nov. 11-20 ......

Nov. 21-30 ...... 

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

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1954 .. 

Jan. 11-20..

Feb. 11-20 ......

Runoff 

(acrefeet)

253,400 

248, 800 

299, 600 

251,600 

268,100 

229,000

288, 100 

249,700 

275,800 

243, 500 

296,400 

296,000

252,800 

267,000

Silica 

(Si02) 

ppm

12 

12

Equivalents per million

Calcium 

(Ca)

4.24 

4.29 

4.04 

4.19 

4.24 

4.29

4.19 

4.14 

4.14 

4.04 

4.04 

4.14

4.14 

4.39

Magnesium 

(Mg)

1.89 

1.81 

2.14 

1.89 

1.89 

1.81

1.89 

1.81 

1.81 

2.06 

2.22 

2.14

2.14 

2.06

Sodium 

(Na)

3.52 

3.57 

3.48 

3.57. 

3.57 

3.61

3.61 

3.52 

3.52 

3.35 

3.57 

3.70

3.83 

3.65

Potassium 

(K)

0.10 

.12

Bicarbonate 

(HC09)

2.65

--

2.64

Sulfate 

(S0«)

5.33

--

5.33

Chloride 

(Cl)

1.75

1.97

Fluoride 

(F)

0.02

.02

Nitrate 

(NOj,)

0.03

.03
COLORADO RIVER MAIN STEM Continued

COLORADO RIVER BELOW HOOVER DAM, ARIZ ,-NEV. 

Chemical analvses. water vear October 1953 to Sentember 1

Date 

of 

collection

Feb. 21-28, 1954 

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

Mar. 11-20 ......

Mar 91 ^1

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

Apr. 11-20 ......

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

May 11-20 .......

May 21-31 .......

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

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

July 11 -20 .......

July 21-31 .......

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

Aug. 11-20 ......

Sept. 1-10

Sept. 11-20

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

201,500 

316,200 

290,200 

304, 500

295,300 

330,000 

349, 300 

325,400 

394, 300 

381,000

308,300 

288,900 

332,200 

310,500 

350,100 

366,600

283,300 

290,700 

313,900 

321,000 

305,900 

306,200

10,680,000

Silica 

(Si02) 

ppm

12 

13

--

Equivalents per million

Calcium 

(Ca)

4.34 

4.44 

4.59 

4.59

4.64 

4.29 

4.54 

4.49 

4.64 

4.59

4.54 

4.49 

4.34 

4.59 

4.39 

4.54

4.64 

4.54 

4.59 

4.64 

4.64 

4.59

4.39

Magnesium 

(Mg)

2.30 

2.30 

2.14 

2.06

2.06 

2.55 

2.14 

2.22 

1.97 

1.97

2.06 

2.14 

2.30 

2.06 

2.96 

2.06

1.97 

2.14 

2.06 

1.97 

1.97 

2.06

2.06

Sodium 

(Na)

3.96 

3.96 

4.26 

4.17

4.17 

4.13 

4.13 

4.04 

4.04 

4.00

4.09 

4.09 

4.09 

4.09 

3.74 

4.09

4.09 

4.09 

4.04 

4.04 

4.09 

4.04

3.92

Potassium 

(K)

0.14 

.10

--

Bicarbonate 

(HC03)

2.84

2.75

Sulfate 

(SOJ

5.95

6.14

Chloride 

(Cl)

2.20

2.14

Fluoride 

(F)

0.02

.02

Nitrate 

(N03)

0.04

.04
DIVERSIONS AND RETURN FLOW AT AND BELOW IMPER

YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT 

LOCATION.--At gaging station on Yuma Main Canal below Colorado River siphon on Arizona 

siphon drop power plant and a quarter of a mile downstream from highway bridge over C

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 1,210 micromhos Aug. 26-27; 

Percent sodium: Maximum, 46 Nov. 21-30; minimum, 39 Jan. 11 to Feb. 20, Mar. 1-20, Ma

EXTREMES, 1943-54.--Specific conductance: Maximum observed, 1,210 micromhos Aug. 26-27, 

Percent sodium: Maximum, 46 Nov. 21-30, 1953; minimum, 32 several periods in 1945, 19

REMARKS.--Values reported for dissolved solids are residue on evaporation. Records of s

district office at Albuquerque, N. Mex. Samples collected prior to February 1943 wer

Records of discharge for water year October 1953 to September 1954 given in WSP 1343.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-10, 1953... 

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

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

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

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

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

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

Dec. 11-20.......

Dec. 21-31.......

Jan. 1-10, 1954 .. 

Jan. 11-20.......

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

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

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

Feb. 21-28.......

Runoff 

(acrefeet)

8,930 

10, 040 

7,910 

7,840 

5,240 

6,350

4,280 

4,980 

5,810 

4,640 

4,570 

7,350

7,770 

7,880 

8.210

 Silica 

(Si02) 

ppm

13 

13 

13 

14 

34 

57

22 

13 

25 

12 

14 

15

13 

13 

15

Equivalents per million

Calcium 

(Ca)

4.14 

4.19 

4.14 

4.29 

3.74 

3.34

4.14 

4.34 

3.94 

4.24 

4.14 

4.09

4.14 

4.09 

4.14

Magnesium 

(Mg)

2.14 

2.06 

2.14 

2.14 

2.14 

2.14

2.06 

2.06 

2.22 

2.06 

2.14 

2.22

2.14 

2.22 

2.14

Sodium 

(Na)

4.44 

4.44 

4.52 

4.44 

4.65 

4.78

4.61 

4.35 

4.30 

4.22 

4.13 

4.09

4.09 

4.09 

4.22

Potassium 

(K)

0.11 

.11 

.11 

.11 

.11 

.12

.11 

.11 

.11 

.11 

.10 

.10

.10 

.10 

.10

Bicarbonate 

(HCO,)

2.79 

2.75 

2.82 

2.80 

2.57 

a2.33

2.70 

2.84 

2.69 

2.79 

2.80 

2.84

2.80 

2.79 

2.82

Sulfate 

(S0<)

5.77 

5.81 

5.83 

5.81 

5.75 

5.77

5.85 

5.77 

5.75 

5.64 

5.70 

5.66

5.62 

5.66 

5.68

Chloride 

(Cl)

2.34 

2.37 

2.40 

2.43 

2.40 

2.37

2.37 

2.34 

2.26 

2.20 

2.17 

2.14

2.14 

2.20 

2.23

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02

Nitrate 

(NO,)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02

B

P

a Includes 0.33 equivalents per million of carbonate (CO3 ).
DIVERSIONS AND RETURN FLOW AT AND BELOW IMPERIAL D

YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT YUMA, 

Chemical analyses, water year October 1953 to September 1954 

Date 

of 

collection

Mar. 1-10, 1954.. 

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

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

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

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

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

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

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

June 21-30 .......

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

July 21-31. .......

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

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

Aug. 21-31.......

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

Sept. 11-20..... ..

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

Total or 

weighted average

Runoff 

(acrefeet)

11,720 

10, 350 

8,960 

9,160 

10, 870 

11,040

8,910 

10, 360 

11,880 

11,330 

10,710 

11,020

9,670 

11,900 

15, 400 

12, 760 

12,010 

10, 930

10, 790 

12, 600 

13,980

338, 200

Silica 

(Si02) 

ppm

13 

11 

13 

12 

12 

12

13 

12 

13 

15 

14 

17

14 

16 

16 

19 

19 

19

14 

14 

15

16

Equivalents per million

Calcium 

(Ca)

4.34 

4.29 

4.19 

4.14 

4.24 

4.29

4.49 

4.54 

4.54 

4.49 

.44 

.44

.39 

.39 

.39 

.39 

.44 

4.39

4.44 

4.34 

4.24

4.29

Magnesium 

(Mg)

2.14 

2.14 

2.14 

2.14 

2.22 

2.30

2.38 

2.47 

2.38 

2.38 

2.38 

2.47

2.38 

2.38 

2.30 

2.30 

2.30 

2.38

2.38 

2.55 

L 2.71

2.30

Sodium 

(Na)

4.22 

4.26 

4.22 

4.17 

4.30 

4.29

4.52 

4.57 

4.61 

.65 

.78 

.70

.61 

.61 

.87 

.87 

.78 

5.09

4.91 

4.83 

4.87

4.57

Potassium 

(K)

0.10 

.10 

.10 

.10 

.10

.11

.12 

.12 

.12 

.12 

.12 

.12

.12 

.12 

.12 

.13 

.12 

.13

.12 

.13 

.13

0.12

Bicarbonate 

(HCOS)

2.84 

2.87 

2.80 

2.79 

2.85 

2.90

2.92 

2.90 

2.93 

2.92 

2.90 

2.87

2.80 

2.82 

2.80 

2.80 

2.80 

2.74

2.75 

2.77 

2.82

2.80

Sulfate 

(SOJ

5.66 

5.68 

5.54 

5.45 

5.66 

5.87

6.06 

6.12 

6.06 

6.22 

6.29 

6.27

6.20 

6.22 

6.25 

6.22 

6.27 

6.54

6.25 

6.33 

6.31

5.98

Chloride 

(Cl)

2.26 

2.26 

2.26 

2.23 

2.31 

2.37

2.45 

2.48 

2.54 

2.59 

2.68 

2.62

2.59 

2.59 

2.65 

2.59 

2.65 

2.74

2.71 

2.68 

2.71

2.45

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.01 

.02 

.01 

.01 

.01

.01 

.01 

.02 

.02 

.02 

.02

.01 

.01 

.01

0.02

Nitrate 

(NO,)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.03 

.02 

.02

.02 

.02 

.03 

.03 

.02 

.03

.03 

.02 

.02

0.02

B

p
GUNNISON RIVER BASIN

GUNNISON RIVER NEAR GRAND JUNCTION, COL

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

canal, and Ij miles upstream from mouth and Grand Junction, Mesa County. 

DRAINAGE AREA.--8,020 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: October 1931 to September 1954.

Water temperatures: April 1949 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 2,640 micromhos Aug. 31; min

Percent sodium: Maximum, 33 during several periods from January to July. Minimum, 

EXTREMES, 1941-54. Specific conductance: Maximum daily, 2,680 micromhos Nov. 5, 1950

Percent sodium (1950-54): Maximum, 34 Feb. 1-10, 1951, June 21-31, Feb. 2-29, 1952; 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Salt Lake City, Utah. Records of discharge for water year Oc

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 . . 

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

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

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

Dec. 11-20. ......

Dec. 21-31. ......

Jan. 1-10, 1954 .. 

Jan. 11-20.......

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

Runoff 

(acrefeet)

12, 600 

13,070 

31,990

25, 030 

24, 930 

23, 580

19, 050 

17, 260 

15,270

13,590 

16, 170 

18.670

Silica 

(Si02) 

ppm

20 

18

Equivalents per million

Calcium 

(Ca)

12.28 

12.38 

11.33

9.58 

8.68 

9.33

8.43 

8.43 

8.53

7.98 

7.29 

7.44

Magnesium 

(Mg)

6.66 

8.55 

5.02

4.77 

7.32 

3.29

4.52 

4.85 

5.35

5.18 

5.43 

4.93

Sodium 

(Na)

8.31 

8.83 

6.96

5.96 

5.78 

5.96

5.96 

5.96 

6.26

5.91 

5.83 

6.13

Potassium 

(K)

0.20

.13

Bicarbonate 

(HCOa)

3.97

3.80

Sulfate 

(SOJ

24.77

14.34

Chloride 

(Cl)

0.76

.59

Fluoride 

(F)

0.03

.03

Nitrate 

(N03)

0.16

.18

a Sum of determined constituents.
GUNNISON RIVER BASIN Continued

GUNNISON RIVER NEAR GRAND JUNCTION, COLO. C

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Feb. 1-10, 1954.. 

Feb. 11-20 ......

Mar. 21-31 ......

May 22-24, 26-27 

May 30-31 .......

July 18,20-23, 

25-31 ..........

July 19, 24 b ....

Runoff 

(acrefeet)

16, 120 

16, 190 

12, 850

14, 010 

15,310 

15, 590

13, 330 

26, 160 

30, 190

23, 800 

38400 

26, 540 

5,080

19, 530 

10, 840 

8,940

7,320

23, 100 

4,290

Silica 

(Si02) 

ppm

15 

20

Equivalents per million

Calcium 

(Ca)

7.24 

6.74 

6.39

6.54 

6.04 

6.39

5.24 

3.89 

3.89

5.24 

4.34 

4.24 

6.34

7.44 

10.08 

11.38

12.03

9.08 

20

Magnesium 

(Mg)

4.85 

4.44 

4.28

4.28 

4.03 

4.28

3.62 

2.30 

1.56

2.47 

1.64 

1.56 

2.80

3.87 

5.51 

5.92

6.33

5.35 

.60

Sodium 

(Na)

5.78 

5.61 

5.35

5.44 

4.65 

5.13

4.17 

2.70 

2. 17

3.35 

2.22 

2.13

4.61 

7.22 

8.35

8.87 

4.91

Potassium 

(K)

0.09

.16

Bicarbonate 

(HC03)

2.59

3.57 

4.29

Sulfate 

(S04)

5.87

15.55 

24.36

Chloride 

(Cl)

0.28

.48 

.62

Fluoride 

(F)

0.01

.03

Nitrate 

(NO,)

0.01

.11 

.18

a Sum of determined constituents.

b Not included for computation of weighted averages.
Aug. 11-20. ......

Sept. 21-30 ......

Total or 

weighted average

11, 160 

11,080

13,680 

20,320 

17, 530

c 637, 300

--

12.52 

14.12

13.37 

11.73 

11.68

8.08

5.92 

7.24

6.50 

5.51 

5.76

4.44

8.35 

9.48

8.70 

7.17 

7.61

5.48

c Represents 96 percent of runoff for water year October 1953 to September 1954.
GREEN RIVER BASIN

GREEN RIVER AT GREEN RIVER, UTAH

LOCATION. At gaging station, 1 mile southeast of Green River, Emery County, 22 miles 

upstream from mouth.

DRAINAGE AREA. 40,600 square miles approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1954.

Water temperatures: April 1949 to September 1954.

Sediment records: May 1930 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,840 micromhos Oct. 13; mini

Percent sodium: Maximum, 46 Oct. 11-12, 14-20; minimum, 26 May 21-31. 

EXTREMES, 1941-54. Specific conductance: Maximum daily, 2,420 micromhos Sept. 29, 194

Percent sodium (1950-54): Maximum, 46 Oct. 11-12, 14-20, 1953; minimum, 21 June 1-10

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Salt Lake City, Utah. Records of discharge for water 

given in WSP 1343.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . .. 

Oct. 11-12, 14-20 .

Oct. 21, 23-24, 26. 

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

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

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

Dec. 13-16, 18, 20 

Dec. 21-31........

Jan. 1-10, 1954 . . . 

Jan. 11-20. .......

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

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

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

Feb. 21-28 .......

Runoff 

(acrefeet)

22,000 

23,820 

2,860 

12,650 

43,500 

43,500

44,770 

15,370 

34,510 

29,950 

34,710 

42,600

41,790 

53,850 

42.470

Silica 

(Si02) 

ppm

9.2 

13

Equivalents per million

Calcium 

(Ca)

4.19 

4.09 

11 

4.39 

4.34 

4.54

4.44 

5.39 

4.99 

5.24 

4.44 

4.19

4.04 

4.04 

3.99

Magnesium 

(Mg)

3.12 

3.87 

.84 

3.21 

3.12 

3.29

2.96 

3.78 

3.45 

3.78 

3.54 

2.71

3.04 

3.12 

2.80

Sodium 

(Na)

5.70 

6.78

5.83 

5.48 

5.61

4.74 

6.04 

5.31 

5.57 

4.87 

4.13

4.70 

4.70 

4.39

Potassium 

(K)

0.13

.10

Bicarbonate 

(HC03)

3.70 

5.24

4.42

Sulfate 

(SOJ

9.24

6.83

Chloride 

(Cl)

1.64

1.49

Fluoride 

(F)

0.02

.02

Nitrate 

(NO,)

0.02

.04

aNot included for computation of weighted averages.
Mar. 1-10, 1954...

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

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

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

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

May 14-20 ........

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

June 21-30, July 1 .

July 2-10 .........

July 13-18 ........

July 19-20 ........

July 21-31 ........

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

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

Aug. 21-31........

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

Sept. 11-20 .......

Total or

46,610

55, 400

67,180

90,880

118,500

loo 7nn

m o fin

QQQ Ann

171 700

inc oftft

110 nnn

KA Cfifl

on ooft

89,100

AC Q.ft.ft.

QQ nnn

QO Ann

on QQft

44 Q.7n

50,320

b2, 473, 000

12

13

4.04

4.14

3 84

4

OQ

3.69

3 04

2

QA

2

AR

2 50

2 R4

2

CQ

2 

OR

2 R4

3 fiA

3.19

2 Q4

3

KA

3 44

4 49

5

OQ

4.74

3 94

2

QC

3 1 9

2 

op

2.30

1 Aft

1.15

99

nn

99

1 °.9

1 99.

n o

1.15

1

C A

1.89

1 40

1 01

1 79

1 97

2

«m

2.22

1

O1

4 59

4 57

4 Aft

4 R9

3.61

2

QQ

1 ft9

i °.n

1.04

1.30

1 £7

2.00

1.17

1 52

2 QT

2.26

2 

on

3 99

3 n4

3 Q1

4 7Q

4.74

2

00

.12

.09

3.90

3.51

4.81

3.48

.90

.56

.03

.02

.05

.04

bRepresents 94 percent of runoff for water year October 1953 to September 1954.
SAN JUAN RIVER BASIN

SAN JUAN RIVER NEAR BLANCO, N. MEX.

LOCATION. At highway bridge, half a mile downstream from gaging station which is 1 mil

of Blanco, San Juan County.

DRAINAGE AREA.--3,560 square miles, approximately, (at gaging station). 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1954. 

Water temperatures: March 1949 to September 1954. 

Sediment records: March 1949 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum observed, 1,170 micromhos Sept.

Percent sodium: Maximum, 39 Feb. 1-10; minimum, 17 Apr. 5-10, S«pt. 25.

EXTREMES, 1945-54.--Specific conductance: Maximum observed, 1,420 micromhos Aug. 16, ,

Percent sodium (1945-49, 50-53): Maximum, 52 July 11-16, 18, 20, 1947; minimum, 13 A

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

district office at Albuquerque, N. Mex. No appreciable inflow between gaging statio

affected by ice Dec. 9 to Jan. 28. Records of discharge for water year October 1953 

25; 

1

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-10, 1953 ..

Nov. 1-7 ........

Nov. 8-Dec. 3 ... 

Dec 4-10

Dec. 11-20 ......

r*o« 91 01

Jan. 1-10, 1954 .. 

Jan. 11-20.......

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

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

Feb. 11-20 ......

Feb. 21-28 ......

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

Mar. 11-20 ......

Mar. 21-31 ......

Runoff 

(acrefeet)

1,940 

6,130 

10, 240 

4,880 

14,210

2,580 

3,930 

4,010 

3,230 

3,550 

4,080

6,200 

7,870 

5,790 

6,030 

7,720 

15. 550

Silica 

(SiO,) 

ppm

10 

17

Equivalents per million

Calcium 

(Ca)

2.54 

2.59 

2.50 

2.35 

2.40

2.59 

3.09 

3.04 

2.94 

2.64 

2.59

2.50 

2.50 

2.50 

2.59 

2.45 

2.84

Magnesium 

(Mg)

0.81 

.78 

.82 

.58 

.58

.75 

.78 

..58 

.81 

.74 

.66

.62 

.82 

.90 

.76 

.68 

1.15

Sodium 

(Na)

2.00 

1.91 

1.48 

1.70 

1.65

2.09 

2.17 

2.13 

2.00 

1.96 

1.96

1.96 

1.87 

1.74 

1.48 

1.35 

1.57

Potassium 

(K)

0.10

.09

Bicarbonate 

(HC03)

2.80

2.80

Sulfate 

(SO^

2.44

2.81

Chloride 

(Cl)

0.28

.25

Fluoride 

(F)

0.02

.02

Nitrate 

(N03)

0.01

.00
Apr. 1-4, 1954 ... 

Apr. 5-10........

Apr. 11-20... . Apr. 21-30.......

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

May 11-20 .......

Mav 91 11

June 11-20.......

July 1, 4-10......

July 2-3 .........

July 11-19 .......

July 20-24 .......

July 25-31 .......

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

Aug. 21-31.......

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

Sept. 11, 14-20...

Sept. 12-13 ....... 

Sept. 21-24, 26,

no QA

Cant OR

Sept. 27 .........

Total or 

weighted average

3,740 

15,410 

31,910 

35, 670 

36, 210 

50, 840 

53, 920

30, 460 

18, 420 

12,220 

10, 190 

2,320 

8,100 

11,130 

11,920

10,980 

16,960 

11,620 

7,410 

8,050 

2,730

10,090 

3,770 

2,120

514, 200

16 

14

..

2.64 

1.85 

1.30 

1.15 

1.20 

1.05 

.95

1.05 

1.30 

1.65 

1.90 

2.89 

2.10 

4.49 

2.15

2.10 

1.75 

1.95 

2.10 

1.85 

3.09

1.95 

9.33 

3.34

1.80

.99 

.62 

.35 

.27 

.31 

.25 

.17

.12 

.30 

.37 

.61 

.45 

.47 

1.48 

.66

.76 

.41 

.47 

.49 

.41 

.49

.43 

1.73 

.67

0.47

1.04 

.52 

.43 

.40 

.48 

.33 

.37

.43 

.70 

.91 

1.00 

2.00 

1.09 

1-74 

1.00

1.04 

.83 

1.13 

1.30 

.96 

1.26

1.00 

2.30 

1.61

0.87

.09

.08

2.57 

1.97

2.21 

2.59

2.00

1.17

.16

.16

.02

.02

.02

.01
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 an

DRAINAGE AREA. 23,000 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: February to June 1927, October 1929 to Septemb

Water temperatures: May 1944 to September 1954.

Sediment records: August to September 1928, July 1929 to September 1954.

EXTREMES, 1953-54. Specific conductance: Maximum daily, 2,110 micromhos Aug. 13; min

Maximum, 58 Sept. 10; minimum, 23 May 21-31. 

--Specific conductance (1941-54): Maximum daily, 2,110 micromhos Aug

Percent sodium:

EXTREMES, 1929-54

June 17, 1952.

Percent sodium: Maximum, 58 Sept. 10, 1954; minimum, 11 May 21, 23-27, 29-31, July 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Salt Lake City, Utah. Records of discharge for wat

given in WSP 1343.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . . . 

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

Oct. 21-23, 25-31 . 

Oct. 24a .........

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

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

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

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

Dec. 11-20. .......

Dec.21-22, 27-29,31. 

Jan. 1-10, 1954 ... 

Jan. 11-20...... ..

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

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

Feb. 11-15 .......

Feb. 21-28. .......

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

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

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

Runoff 

(acrefeet)

3,550 

12,390 

30,050 

7,870 

22, 040 

17,040 

15,850

13, 230 

10, 040 

6,020 

8,880 

10,510 

12,920

12,390 

7,200 

9,160 

11,950 

13, 150 

22, 890

Silica 

(Si02) 

ppm

12 

13 

16

15 

13 

12

11 

13 

12 

11 

10 

12

11 

11 

11 

9.7 

8.9 

14

Equivalents per million

Calcium 

(Ca)

6.34 

7.19 

6.89 

4 

5.74 

5.79 

5.79

6.09 

7.39 

7.04 

6.99 

6.24 

6.29

6.04 

5.54 

5.94 

5.49 

5.19 

4.94

Magnesium 

(Mg)

3.45 

3.12 

2.38 

.68 

2.55 

2.63 

2.88

3.21 

3.87 

3.62 

3.62 

3.29 

3.37

3.54 

2.88 

3.12 

2.88 

2.71 

.2.38

Sodium 

(Na)

7.00 

6.31 

4.91

4.44 

4.22 

4.13

4.22 

5.57 

4.83 

5.48 

4.61 

4.91

4.70 

4.13 

4.39 

3.91 

4.00 

4.35

Potassium 

(K)

0.13 

.14 

.14

.12 

.11 

.10

.08 

.09 

.09 

.09 

.09 

.07

.08 

.09 

.09 

.09 

.08 

.12

Bicarbonate 

(HC03)

2.85 

3.21 

3.28 

3.15 

3.23 

3.20 

3.13

3.28 

3.80 

3.64 

3.61 

3.31 

3.21

3.18 

3.11 

3.10 

2.98 

2.82 

3.08

Sulfate 

(S0<)

12.60 

12.16 

10.01 

5.33 

8.68 

8.60 

8.76

9.35 

11.72 

10.74 

11.10 

9.81 

10.31

10.37 

8.58 

9.64 

8.62 

8.27 

7.77

Chloride 

(Cl)

1.24 

.99 

.68 

.48 

.68 

.71 

.73

.85 

1.04 

1.02 

1.10 

.96 

.93

.90 

.79 

.90 

.79 

.79 

.71

Fluoride 

(F)

Nitrate 

(NO,)

0.04 

.07 

.06

.06 

.06 

.05

.04 

.06 

.05 

.05 

.05 

.08

.05 

.05 

.07 

.05 

.04 

.06

aNot included for computation of weighted averages.
Apr. 1-10, 1954... 

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

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

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

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

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

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

June 21-27........

June 28-30. .......

July 1-3, 5, 9-10. . 

July 6-8 ..........

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

July 21-23, 26, 

28-31 ...........

July 24-25, 27. . . . .

Aug. 1-9. .........

Aug. 10 a .........

Aug. 11, 15-19.... 

Aug. 12-14 .......

Aug. 20a .........

Aug. 21-23, 25-31. 

Aug. 24. ..........

21,960 

39, 170

51,650

46,750

77,000

94, 120

55,080

34, 270

21,520

9,020

15,270 

9,100

21,160

31,610

40, 320

17,490

1,760

16,960 

5,660

2,640

18,770 

2,600

15 

15

14

13

14

13

14

13

11

15

17 

19

14

16

22

14

15

17 

16

18 

15

4.59 

3.09

2.64

2.74

2.69

2.50

2.40

2.69

2.69

8.93

4.04 

5.29

4.19

3.64

7.29

4.09

4.39 

11.58

8.48

4.04 

5.49

2.14 

1.07

.90

1.15

.79

.76

.79

.90

an

2.71

1.23 

3.37

2.06

.99

3.54

1.32

1.40 

3.04

.90

1.07 

1.32

3.30 

1.43

1.17

1.57

1.09

QC

1.09

1.57

1 57

3.78

3.00 

3.30

3.26

6.48

2.61

4.17

3.22 

4.96

3

3.61 

5

.10 

.07

.06

.06

.05

.04

.04

.06

.06

.15

.13 

.16

.12

.11

.13

AQ

.11

.12 

.21

27

.11 

66

2.98 

2.47

2.15

2.00

2.33

2.06

1.80

1.93

1 07

3.08

2.93 

3.56

2.92

2.95

4.59

2.67

3.39

3.18 

2.79

4.54

3.26 

4.51

6.52 

2.94

2.42

3.21

1.98

1 Q4

2.21

2.89

2.87

11.62

4.98 

7.74

4.98

4.50

12.20

4.71

7.22

5.16 

16.16

7.54

5.12 

7.56

.56 

.25

.24

.28

.17

1 Q

.20

.31

.34

.73

.51 

.82

1.75

.48

.51

.54

.68

.51 

.85

.54

.51 

.39

.06 

.05

.04

.04

.03

.02

.01

.01

.00

.01

.03 

.03

.05

.04

.01

.05

.08

.06 

.07

.03

.04 

.01

a Not included for computation of weighted averages, 

b Sum of determined constituents.
SAN JUAN RIVER BASIN Continued 

SAN JUAN RIVER NEAR BLUFF, UTAH--Continu

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Sept. 1-5, 1954. . . .

Sept. 10 ..........

Sept. 11, 14. ......

Sept. 16-20 .......

Sept. 21-24, 30....

Sept. 25-2a.......

Total or

weighted average

Runoff 

(acrefeet)

3,430

4,850

857

7,290

10, 630

14,130

38, 460

c948, 400

Silica 

(SiO.,) 

ppm

17

16

16

16

15

14

18

14

Equivalents per million

Calcium 

(Ca)

4.69

7.29

8.08

6.69

3.69

4.39

7.63

4.39

Magnesium 

(Mg)

1.64

2.96

2.06

2.55

1.07

1.40

2.14

1.73

Sodium 

(Na)

3.78

6.13

13.

Potassium 

(K)

0.12

.14

80

6.40

3.30

3.13

5.87

3.00

.12

.12

.16

0.09

Bicarbonate 

(HCO,)

2.84

5.23

4.29

2.79

2.95

3.79

2.77

Sulfate 

(SOJ

6.52

11.64

18.07

10.66

4.77

5.35

11.24

5.83

Chloride 

(Cl)

0.73

.85

.62

.68

.51

.56

.59

0.51

Fluoride 

(F)

Nitrate 

(NO,)

0.07

.08

.02

.01

.04

.03

.01

0.04

b Sum of determined constituents.

c Represents 96 percent of runoff for water year October 1953 to September 1954.
LITTLE COLORADO RIVER BASIN Continue

LITTLE COLORADO RIVER AT CAMERON, ARI

LOCATION. At bridge on U. S. Highway 89 at Cameron, Coconino County, 12 miles upstre

stream from Moenkopi Wash.

DRAINAGE AREA. 26,500 square miles, approximately, (above gaging station).

RECORDS AVAILABLE. Chemical analyses: April 1951 to September 1954. 

Water temperatures: October 1952 to September 1954.

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

available in district office at Albuquerque, N. Mex. Appreciable inflow between sa

storm runoff from Moenkopi Wash and several small arroyos. Records of discharge f

water year October 1953 to September 1954 given in WSP 1343.

Chemical analyses, March to September 1954

Date 

of 

collection

Mar. 25, 1954 ... 

Mar. 26-31 ......

Apr. 1-4, 6-7, 10 .

July 9 ...........

July 17-18, 21-22. 

July 23-31 .......

Aug. 1-3, 5-9 . . . .

Sept. 4 ..........

Sept. 5, 8-11.....

Sept. 12-13 ......

Sept. 14-18, 20 .. 

Sept. 21,25,29-30

Qont 9** 94

Runoff 

(acrefeet)

Silica 

(Si02) 

ppm

16 

20 

17

21 

30 

30 

25

27 

22 

22 

21

27 

18 

27

22 

20 

29

Equivalents per million

Calcium 

(Ca)

3.99 

1.70 

1.50

2.

.26 

2.10

2.54 

1.75 

9.08 

1.90

1.65 

1.55 

2.20

2.50 

1.80 

.24

Magnesium 

(Mg)

1.07 

.57 

.37

56 

40 

.02 

.71

.90 

.41 

3.29 

.54

.47 

.44 

.66

.90 

.67 

.17

Sodium 

(Na)

8.22 

5.44 

4.04

2.13 

5.74 

6.22 

9.39

10.00 

6.87 

7.48 

9.39

9.35 

6.91 

5.96

8.91 

8.87 

5.91

Potassium 

(K)

Bicarbonate 

(HC03)

6.24 

3.57 

3.06

3.77 

a4.43 

b4.77 

4.92

4.56 

4.61 

7.72 

5.41

4.85 

4.10 

4.16

5.95 

5.51 

c4.08

Sulfate 

(SOJ

2.33 

1.48 

.90

.56 

1.21 

1.08 

3.75

4.98 

2.27 

10.89 

3.12

3.60 

2,54 

3.75

3.44 

3.14 

1.69

Chloride 

(CO

4.82 

2.65 

1.89

.42 

.71 

.68 

3.44

3.75 

2.14 

1.61 

3.10

2.88 

2.26 

.93

2.96 

2.54 

.51

Fluoride 

(F)

0.03 

.03 

.03

.04

.11 

.05

.05 

.04 

.06 

.04

.08 

.03

.03 

.04 

.06

Nitrate 

(NO,)

0.04 

.01 

.02

.00 

.03 

.04 

.01

.01 

.00 

.01 

.01

.02 

.02 

.04

.03 

.03 

.02

a Includes 0. 53 equivalents per million of carbonate (CO3 ). 

b Includes 0. 67 equivalents per million of carbonate (CO3 ). 

c Includes 0. 47 equivalents per million of carbonate (CO,).
VIRGIN RIVER BASIN

VIRGIN RIVER AT LITTLEFIELD, ARIZ.

LOCATION. At gaging station, three-eighths of a mile downstream from Beaverdam Wash 

Littlefield, Mohave County.

DRAINAGE. 5,090 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: July 1949 to September 1954.

Water temperatures: October 1947 to September 1954.

Sediment records: October 1947 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 3,960 micromhos July 14; min

Percent sodium: Maximum, 34 during several periods December to March; minimum, 21 

EXTREMES, 1949-54: Specific.conductance: Maximum daily, 3,960 micromhos July 14, 195

Percent sodium (1949-50, 1953-54): Maximum, 36 Feb. 1-10, 1950; minimum, 21 Jan. 26

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

samples available in district office at Salt Lake City, Utah. Records of discharge 

given in WSP 1343.

Chemical analyses, water vear October 1953 to Seote

Date 

of 

collection

Oct. 1-10, 1953 a . 

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

rv»t 91 ^1 n

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

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

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

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

Dec. 11-20 .......

Dec. 21-31. .......

Jan. 1-10, 1954 . . . 

Jan. 11-20........

Jan. 21-25, 28-31 . 

Jan. 26-27 ........

Runoff 

(acrefeet)

1,280 

1,540 

4,340 

2,950 

3,270 

3,240

3,580 

3,650 

3,790 

3,360 

3,530 

5,310 

2.620

Silica 

(Si02) 

ppm

24

22

21 

21 

21 

19 

19 

17 

12

Equivalents per million

Calcium 

(Ca)

18.81

15.47

14.87 

14.47 

14.17 

13.92 

13.72 

13.32 

13.47

Magnesium 

(Mg)

8.80

7.65

7.65 

7.07 

6.91 

6.83 

6.99 

6.09 

3.37

Sodium 

(Na)

12.48

11.48

11.65 

11.22 

11.04 

10.78 

10.87 

9.91 

4.44

Potassium 

(K)

-

0.61

.59 

.59 

.56 

.56 

.56 

.49 

.28

Bicarbonate 

(HCOJ

4.56

4.79

4.98 

5.34 

5.47 

5.44 

5.38 

4.98 

3.05

Sulfate 

(SOJ

24.77

20.30

19.49 

17.86 

17.74 

17.28 

17.24 

16.13 

14.84

Chloride 

(Cl)

11.34

10.58

10.58 

10.01 

9.65 

9.53 

9.81 

8.74 

3.72

Fluoride 

(F)

Nitrate 

(NO,)

0.03 

.03

.03 

.03 

.04 

.04 

.03 

.04 

.02

aNot included for computation of weighted averages.
Feb. 1-10, 1954... 

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

Feb. 21-28 .......

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

Mar. 11-22 .......

Mar. 23-31 .......

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

Apr. 11-18. .......

Apr. 19-30. .......

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

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

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

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

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

June 21-30... .....

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

July 11-16, 18-20.. 

July 17 ...........

July 21-31 ........

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

Aug. 11-12, 14-20. 

Aug. 13...........

Aug. 21-31........

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

Sept. 11-20 .......

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

Total or 

weighted average

4,220 

5,230

3,010

2,920

3,100

10,760

6,730

4,700

12,000

5,620

2,350

1,690

1,360

1,270

2,820

1,410

1,780 

448

3,900

6,400

1,580 

359

1,480

1,710

5,880

1,290

b!24,700

20 

19

19

20

22

20

18

17

13

16

18

19

20

19

18

25

24 

22

20

22

22 

36

21

23

21

23

19

12.57 

12.08

12.28

13.37

15.07

8.43

9.78

10.78

8.13

9.53

14.77

17.66

16.97

17.66

18.96

17.51

20.66 

11.83

21.76

21.76

19.11

H 99

17.17

19.61

23.80

17.66

14.02

6.50 

6.17

6.58

7.48

8.31

3.78

5.10

5.59

3.62

5.26

8.31

10.12

10.12

10.20

9.29

9.46

8.96 

5.67

8.22

8.88

9.29

9.87

9.21

7.89

9.87

6.58

9.22 

8.87

9.39

10.87

11.13

5.70

6.91

7.65

5.00

7.00

10.44

11.31

11.61

11.44

11.13

11.57

11.09 

7.31

10.52

10.22

10.87 

6.96

11.31

11.57

9.78

11.74

9.00

0.54 

.49

.54

.59

.64

.31

.38

.43

.28

.41

.59

.69

.67

.67

.64

.72

.69 

.38

.64

.67

.69 

.41

.74

.67

.54

.64

0.51

4.92 

4.72

4.90

4.95

5.33

3.93

4.69

4.74

3.95

4.34

4.74

5.26

4.21

4.67

4 90

3.93

5.08

4.69

5.21 

14.85

4.65

4.75

4.83

4.44

4.70

15.30 

14.78

15.16

17.22

19.28

9.45

11.10

19 RR

8.58

11.39

19.32

23.53

94 TR

24.15

24.77

27.48 

14.30

97 97

28.11

24.98 

6.58

24.15

26.02

28.73

17.38

8.52 

7.90

8.60

9.59

9.87

4.65

5.98

6.77

4.29

6.43

9.45

10.58

10.44

10.01

9.93

9.59 

5.42

8.97

8.46

9.36 

5.42

10.29

9.73

8.32

10.29

7.92

.04 

.04

.04

.05

.05

.04

.05

.06

.06

.03

.04

.02

.02

.02

.02

.02

.03 

.02

.02

f\9

.02 

.02

.02

.03

.03

.02

0.04

bRepresents 91 percent of runoff for water year October 1953 to September 1954.
GILA RIVER BASIN

GILA RIVER AT KELVIN, ARIZ.

LOCATION. Just above mouth of Mineral Creek and 1,200 feet upstream from gaging statio

San Pedro River and 19£ miles upstream from Ashurst-Hayden Dam.

DRAINAGE AREA.--18,011 square miles (at gaging station) of which 5,125 square miles is 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum observed, 2,660 micromhos Feb. 1; mi

Percent sodium: Maximum, 58 Mar. 1-10; minimum, 15 Oct. 1-31. 

EXTREMES, 1950-54. Specific conductance: Maximum observed, 2,790 micromhos June 12, 1

Percent sodium: Maximum, 63 May 21-31, Aug. 5-10, 1953; minimum, 15 Oct. 1-31, 1953. 

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

available in district office at Albuquerque, N. Mex. Records of discharge for water 

1343. No appreciable inflow from Mineral Creek between sampling point and gaging sta

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

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

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

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

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

Dec. 11-20. .......

Dec. 21-31........

Jan. 1-10, 1954... 

Jan. 11-20........

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

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

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

Feb. 21-28 .......

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

Runoff 

(acrefeet)

28 

26 

28 

30 

63 

93

130 

155 

223 

169 

171 

229

498 

567 

518 

722

Silica 

(Si02) 

ppm

42 

43 

45 

62 

62 

47

47 

34 

35 

33 

36 

48

59 

44 

25 

27

Equivalents per million

Calcium 

(Ca)

19.16 

19.01 

19.11 

16.87 

11.78 

10.68

11.28 

10.58 

10.08 

9.83 

8.73 

7.78

5.09 

4.94 

5.39 

5.79

Magnesium 

(Mg)

7.48 

7.40 

7.48 

6.84 

4.44 

3.87

3.62 

3.12 

3.12 

3.37 

3.78 

3.70

3.29 

2.96 

3.04 

2.88

Sodium 

(Na)

4.61 

4.74 

4.61 

6.22 

9.74 

10.65

10.31 

10.39 

10.39 

10.63 

10.26 

10.26

11.04 

10.35 

11.13 

11.96

Potassium 

(K)

0.38 

.38

Bicarbonate 

(HC03)

5.06 

5.06 

4.85 

4.42 

3.70 

4.00

3.98 

4.03 

4.00 

4.18 

3.80 

3.57

3.80 

3.79 

3.83 

3.67

Sulfate 

(SOJ

23.32 

23.11 

23.32 

21.44 

15.16 

13.93

14.91 

13.51 

13.20 

12.78 

12.82 

12.16

7.04 

6.45 

6.43 

6.22

Chloride 

(Cl)

2.85 

2.93 

2.76 

4.23 

7.05 

7.67

6.83 

6.83 

6.77 

7.05 

6.77 

6.63

8.88 

8.24 

9.53 

10.49

Fluoride 

(F)

0.03 

.03 

.03 

.04 

.07 

.07

.08 

.11 

.13 

.10 

.10 

.10

.08 

.07 

.07 

.07

Nitrate 

(NOJ

0.01 

.01 

.01 

.00 

.02 

.01

.02 

.02 

.01 

.01 

.02 

.02

.03 

.02 

.01 

.04

B

P
Mar. 11-21, 1954.. 

Mar. 22-25 .......

Mar. 26-28 .......

Mar. 29-Apr. 2 ... 

Apr. 3-10 ........

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

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

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

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

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

June 21-26. .......

June 27-30. .......

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

July 11-19 ........

July 20-27. ........

July 28-31 ........

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

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

Aug. 21, 23, 27 ... 

Aug. 22, 24-26, 

28-31.. .........

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

Sept. 11-20 .......

Sept. 21-23, 25-30. 

Sept. 24 ..........

Total or 

weighted average

577 

17,860

1,010

571 

3,430

6,280

4,640

2,750

2,120

3,940

5,100

4,710

3,490

615

2, 370.

2,600

19, 350

1,040

52, 540

18,720

1,940 

7,930

6,540

5,420

5,130 

1,870

186,200

27 

27

30

32 

21

20

22

22

22

24

22

12

17

25

22

29

34

31

29

28

28 

27

27

22

26 

25

27

5.99 

3.34

6.04

8.23 

2.79

2.74

2.89

3.44

3.54

3.19

3.04

3.19

3.69

6.04

4.69

5.94

4.14

6.24

4.04

3.84

4.14 

3.09

3.09

2.74

2.89 

3.04

3.79

2.96 

.99

2.06

3.29 

1.07

.90

1.07

1.15

1.23

1.48

1.40

1.32

1.48

2.06

1.89

1.81

1.40

1.73

1.32

1.23

1.40 

.99

QQ

.99

.99 

.99

1.32

11.96 

1.65

5.96

9.00 

3.83

3.65

3.96

4.74

4.91

4.52

4.44

4.78

4.70

6.70

6.39

3.87

2.35

4.87

2.87

2.91

3.91 

2.87

3.57

3.91

4.13 

1.30

3.39

--

--

--

3.75 

3.20

3.77

4.90 

2.52

2.49

2.65

3.02

3.03

2.98

3.03

3.21

4.05

5.33

4.80

6.85

6.26

4.39

4.93

4.34

4.18 

3.85

3.88

3.62

3.69 

4.65

4.28

6.93 

1.75

5.39

8.27 

2.06

1.77

1.73

2.29

2.60

2.12

1.87

1.98

1.94

4.46

3.02

2.04

1.04

6.00

2.54

2.98

3.71 

2.06

1.98

2.06

2.08 

.21

2.37

10.15 

.99

4.74

7.28 

2.99

3.05

3.67

4.09

4.23

3.98

3.98

4.34

4.17

5.27

5.36

2.74

.56

2.43

.82

.79

1.72 

1.07

1.78

2.03

2.28 

.42

1.83

.07 

.04

.05

.05 

.04

.04

.03

.03

.04

.05

.04

.04

.04

.05

.05

.03

.04

.05

.04

.04

.05 

.04

.05

.05

.05

0.04

.03 

.04

.07

.04 

.07

,06

.05

.03

.03

.02

.02

.02

.01

.07

.05

.02

.02

.04

.01

.02

.03

.04

.06

.04

.04 

.01

0.03
GILA RIVER BASIN Continued

GILA RIVER BELOW GILLESPIE DAM, ARIZ.

LOCATION. About 1 mile below gaging station on Gila Bend Canal which is 200 feet below 

stream from Hassayampa River. Gila Bend Canal diverts from left bank and Enterprise 

DRAINAGE AREA. 49,620 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum observed, 9,680 micromhos Nov. 6; mi

Percent sodium: Maximum, 69 June 11 to July 10; minimum, 38 Aug. 5-10. 

EXTREMES, 1950-54. Specific conductance: Maximum observed, 10,200 micromhos Oct. 3, 1

Percent sodium: Maximum, 69 Aug. 6-10, 1951, June 11-20, 1952, June 11 to July 10, 1

REMARKS.--Values reported for dissolved solids are sums of determined constituents. Re

available in district office at Albuquerque, N. Mex. Samples from canal are believed 

Gillespie Dam including spill and amounts diverted into Gila Bend and Enterprise Cana

for the river and canals for water year October 1953 to September 1954 given in WSP 

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-10, 1953 . . 

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

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

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

Nov. 11-20 ......

Nov. 21-30 ......

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

Dec. 11-20. ......

Dec. 21-31 ......

Jan. 1-10, 1954 .. 

Jan. 11-20..... ..

Jan. 21 .........

Jan. 22-31 ......

Runoff 

(acrefeet)

270 

268 

311

333 

361 

383

444 

480 

641

573 

593 

169 

803

Silica 

(SiO,) 

ppm

27 

29 

36

34 

34 

32

30 

32 

33

30 

29 

11 

28

Equivalents per million

Calcium 

(Ca)

18.16 

18.46 

18.21

19.21 

20.01 

19.81

19.81 

20.41 

19.41

20.41 

19.61 

5.49 

19.21

Magnesium 

(Mg)

13.40 

13.57 

13.32

12.66 

12.34 

12.91

13.08 

12.66 

12.09

11.92 

12.91 

2.30 

11.35

Sodium 

(Na)

65.23 

66.10 

68.70

68.70 

70.88 

69.14

68.27 

69.57 

65.23

66.97 

67.83 

12.57 

62.18

Potassium 

(K)

0.31 

.31 

.28

.28 

.31 

.31

.31 

.31 

.28

.31 

.31 

.25 

.31

Bicarbonate 

(HCO,)

5.49 

5.72 

5.87

6.13 

6.70 

6.56

6.78 

7.06 

6.52

6.88 

6.88 

2.23 

6.39

Sulfate 

(S0<)

27.06 

26.86 

26.44

27.48 

27.90 

27.48

27.27 

27.69 

26.86

27.06 

27.27 

5.33 

24. 77

Chloride 

(Cl)

65.15 

65.71 

67.12

67.12 

68.53 

67.97

67.69 

67.97 

64.30

65.71 

67.41 

12.58 

62.05

Fluoride 

(F)

0.14 

.14 

.15

.14 

.15 

.14

.15 

.15 

.15

. 14 

. 14

.13

Nitrate 

(NO,)

0.53 

.52 

.53

.56 

.60 

.63

.65 

.61 

.74

.68 

.68 

.31 

.68

B
COLORADO RIVER BASIN 151

OOOOOO Oi CO Oi t** CO CO C- t- CO C- CO t*- CO CO C- C- O3

o o o

 * CO rCO CO i-l

co en en

CO C- CD

CO CO CO

o o o

CO t- tt- co in

in ift -3*

eo * rcn CM <-<

t- CO CO

o o o co co -!

CO OJ=>

in co co

 fl« rH i-l

eoeoco

co i-i in

CO CO CO

*p m m

CO i-l CO

rj. t- co 

CO CO CO

rj. t- co 

 * CO O

CD C- CCXI CM CO

en eo rCO CO CO

CO CO i-l 

CM CO CO

si en 5:2 en *-t

eo co co

CO CO CO

CO CO rH

co o en

CO CO CO

CN CO O

en en o

en t- 1-1

ON CN CO

CN CN en

t- t- in

S : :

O) 

~O CO 

O CN CN

 -I -! CO

A A A 0)0)0) 

fe fe fe

o o o o ccn o 1-1 <-i en

co en co CN

rt Cco co in co' CN

co co co in *

S

o o * en CM -H CM O

en co m c- in

in in in

CN CO iH * CO

o o CN t- rCO CO C- i-l

§

O O O CO n o co m 

en en co CN in

in in in ^H

f 

en CN co r* CN

CN CO CO <-l

in co o en o

CO CO CO rH rH

co co CN in f

 * O i-l O *

m co co co co 

co co in IH

in in * fl' en

co co m co CN

CN CN CN

o co o in o

co in in CN CN

CN CO CN i-l i-l

en co « * CM

 * in c- CN * 

co CD in IH

en en o> co in * * o en 1-1

CO CO CN CN i-l

co co co rr to

co co c- in co

en en t" i-< en

CN fl' CO CN i-l

CN CN CO CO O

c- t- t- * co 

'. '. TO I !

! .' o ; ; «

O CN CN CN

i 1-1 1-1 co'r-

 -I i-l CN CN CM 

t,' h ti h h

Illsl

o o o Sen tCO CO

CO CO CO

in in co

CO CO CO

S

o o -I rH 

^H CO CO

co in in

o o o

CO O O

C- CO CO

o o o 

in co co

in m in

co o in

co in fl'

in co 1-1

CO CO tm rr m

in en o 

o in co

CM Tf Tf

CO CO CO

co * in 

en fl' co

 fl. co CO 

CN CN CM

in en co

in CD co

CN CO CO

 * en co

o * in

CO CO CO

CN rH CO

co en o

CO CO CO

CO CO CN

co en en

CO i-l CO 

 * CO CN

en co *

CO C- CO

.0 0 

O CN CO

 -I i-l CN

h h ti 

Q,Q,Q. 

« <

O O O in in CD CO * tcococo

CO CO tCO CO CD

o o o 

en rH CN in *-< trj, rj, co

 -I CO CO

O CO CO

cot- t88S CO CO Cin in m

o o CN

*a"5» m

en 1-1 in 

co co in

rj, m CO

en CN en in en co

f O ft 

CO CO CO

in CN co

CD CO CO

co in CD

CN CN CN

t~ o -a<

in in in

CO CO «

CO CO CO

in eo in

CO CO CO

§

in en t- o

m CN CN

CO CN O

CO CO CO

t- in co

 * CN CN

co en CD

in in *

' O i-l 

O CN CO

TI i-l CN

>,>,>, 

n) rt o)

sss

o o o 

co in co in co *

CO CO CO

t- t- tCO CO CO

o o o

CO i-l O

en co co

CM CM CO

co en CN

CO * CO

o o o

CO i-l O

co in co

in in in

1-1 in eo

CO CO CO

CO CO O

in in in

co co in

o en fl'

CN C- CO

 -i en o 

co in co

CO O CM

CO * O

in in co

CN CM CM

t- i-l CO

in in in

ncoco

co in co

^* CO ^* 

CO CO CO

§§g

eo CM 1-1

rj, rj, co

t- CO CO

CO CO CO 

CO ^* CO

en in i-i

 o o 

o eo co

 -i 1-1 eo

o o o o

ScoSS

co co rr r*

rf o 

c- t- en co'

CO CO CO *

o o in o

CO CO CO CO * en co co

eo CM CM

co en en in in * co co

o o o in

C- i-l i-l CM in in t- co

in in CM

en 

co co c- eo

CO CO i-l

o in c- in in ^ o o

in in in «

 * o» o co 

co c- in en

o en t- eo CD in eo

eo eo o o 

o co co co

co in o CN 

eo CM i-c

in 1-1 1- o

in in t- *

coco'co'S

en in co -!

CO CD CM

co en 1-1 co t- o -a* -a*

i-i eo co i-i

o co * en

t- CO -! CO

 * CO O i-l 

CM CM CO CO

 -i in en o

co eo c- CM"

' « ' 1-1 c* eo | co

i 1-1 fl' in 1-1 i-i eo CM mt
GILA RIVER BASIN--Continued

GILA RIVER BELOW GILLESPIE DAM, ARIZ. Contin

Chemical analyses, water year October 1953 to September 1954

Date 

of 

collection

Aug. 1-4, 1954...

Aug. 11-14, 17-20 

Aug. 15-16 ......

Aug. 21, 24-26.. . 

Aug. 22-23.......

Aug. 27-31. ......

Sept. 1-4, 6-10... 

Sept. 5 ..........

Sept. 11-20 ......

Sept. 21-24, 26, 

29-30 ..........

Sept. 25 .........

Sept. 27-28 ......

Total or 

weighted average

Runoff 

(acrefeet)

290 

6,060 

10,250 

1,380

1,080 

1,740 

573

857 

133 

686

684 

139 

414

43,630

Silica 

(Si02) 

ppm

38 

32 

28 

34

31 

26 

35

26 

32 

40

32 

16 

19

31

Equivalents per million

Calcium 

(Ca)

15.27 

5.29 

4.14 

5.69

11.28 

4.19 

18.41

18.21 

10.18 

18.81

18.01 

6.74 

3.64

10.68

Magnesium 

(Mg)

9.37 

1.64 

1.23 

1.97

6.09 

1.40 

12.50

12.34 

4.77 

12.66

12.34 

2.96 

1.23

6.25

Sodium 

(Na)

46.53 

4.35 

4.00 

7.74

29.87 

5.22 

56.09

57.83 

22.79 

61.31

59.57 

13.26 

3.83

30.31

Potassium 

(K)

0.33 

. 19 

.17 

.21

.28 

.16 

.33

.33 

.28 

.33

.31 

.28 

.15

0.24

Bicarbonate 

(HC09)

5.69 

4.95 

4.56 

4.98

4.39 

3.83 

5.75

5.60 

4.23 

5.31

5.34 

2.79 

3.47

5.16

Sulfate 

(SOJ

19.99 

4.31 

3.08 

4.27

13.45 

3.25 

23.32

23.73 

10.08 

25.40

24.77 

5.37 

2.35

13.22

Chloride 

(Cl)

45.41 

2.20 

1.75 

6.43

29.33 

3.78 

56.69

58.38 

23.41 

61.48

59.79 

14.33 

2.85

29.05

Fluoride 

(F)

0.11 

.06 

.05 

.06

.08 

.06 

.11

.13 

.06 

.14

.13 

.06 

.04

0.09

Nitrate 

(NOS)

0.60 

.01 

.04 

.02

.47 

.06 

.71

.74 

.44 

.73

.74 

.34 

.06

0.31

B
GILA RIVER BASIN Continued

SALT RIVER AT STEWART MOUNTAIN DAM, ARIZ

LOCATION. Just below dam, 3£ miles above gaging station below Stewart Mountain Dam, wh

Maricopa County.

DRAINAGE AREA. 6,230 square miles above gaging station, of which 22 square miles is be

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES 1953-54. Specific conductance: Maximum observed, 1,030 micromhos Apr. 1, Au

Oct. 3, 18-19.

Percent sodium: Maximum, 66 Apr, 21-May 10; minimum, 56 Oct. 11-20, Nov. 21-30, Jan. 

EXTREMES 1950-54. Specific conductance: Maximum observed, 2,490 micromhos Aug. 20, 1

Mar. 28, 1953.

Percent sodium: Maximum, 76 July 21-31, Aug. 11-26, 1951; minimum, 53 Mar. 21-31, Ap

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Albuquerque, N. Mex. No inflow between sampling poi

periods of heavy local rains. Records of discharge for gaging station below Stewart 

to September 1954 given in WSP 1343.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 . . . 

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

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

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

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

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

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

Dec. 11-20 .......

Dec. 21-31. .......

Jan. 1-10, 1954 . . . 

Jan. 11-20........

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

Runoff 

(acrefeet)

14, 850 

87 

9,400 

7,884 

5,520 

5,460

7,030 

9,330 

16,660 

4,440 

3,000 

1,380

Silica 

(Si02) 

ppm

25 

17 

17 

18 

17 

17

32 

15 

13 

16 

17 

15

Equivalents per million

Calcium 

(Ca)

2.15 

2.30 

2.25 

2.20 

2.25 

2.25

2.15 

2.25 

2.20 

2.30 

2.20 

2.20

Magnesium 

(Mg)

0.99 

.99 

.90 

.90 

.90 

.90

.99 

.80 

.90 

.80 

1.07 

1.07

Sodium 

(Na)

4.30 

4.22 

4.26 

4.13 

4.13 

4.13

4.13 

4.22 

4.13 

4.13 

4.13 

4.13

Potassium 

(K)

0.10 

10

Bicarbonate 

(HC03)

2.59 

2.62 

2.64 

2.52 

2.61 

2.59

2.64 

2.59 

2.61 

2.56 

2.64 

2.61

Sulfate 

(SOJ

0.85 

.85 

.85

.75 

.77 

.77

.75 

.79 

.75 

.77 

.75 

.75

Chloride 

(Cl)

4.15 

4.12 

4.12 

3.98 

4.03 

3.98

4.03 

4.03 

4.03 

4.03 

4.09 

4.13

Fluoride 

(F)

Nitrate 

(NO,)

0.02 

.03 

.03 

.02 

.02 

.01

.01 

.02 

.01 

.02 

.02 

.01

B
GILA RIVER BASIN Continued

SALT RIVER AT STEWART MOUNTAIN DAM, ARIZ. C

Chemical analyses, water vear October 1953 to September 1

Date 

of 

collection

Feb. 1-10, 1954... 

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

Feb. 21-28 .......

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

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

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

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

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

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

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

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

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

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 .......

Total or 

weighted average

Runoff 

(acrefeet)

3,680 

9,080 

7,280 

17,460 

21,160 

16, 230

8,360 

19, 160 

19,230 

12,820 

12,970 

18,980

21,990 

21,950 

21,300 

15,720 

16, 560 

20,210

26,290 

22,310 

29, 090 

21,730 

22,360 

14, 970

506, 000

Silica 

(Si02) 

ppm

14 

14 

14 

13 

15 

14

19 

27 

50 

46 

15 

15

17 

13 

12 

13 

15 

17

14 

16 

16 

15 

16 

15

18

Equivalents per million

Calcium 

(Ca)

2.30 

2.30 

2.40 

2.40 

2.40 

2.54

2.50 

2.40 

2.10 

2.10 

2.50 

2.45

2.40 

2.40 

2.40 

2.40 

2.40 

2.40

2.35 

2.35 

2.40 

2.30 

2.35 

2.40

2.35

Magnesium 

(Mg)

0.90 

.99 

.99 

.99 

.99 

.90

.82 

.82 

1.07 

1.07 

.99 

.99

.99 

.99 

.90 

.90 

.99 

.99

1.32 

1.32 

1.15 

1.07 

.99 

1.07

0.99

Sodium 

(Na)

4.83 

5.39 

5.87 

5.91 

6.00 

6.00

6.09 

5.83 

6.04 

6.09 

5.96 

6.00

5.91 

5.70 

5.65 

5.74 

5.83 

5.87

5.83 

6.09 

5.96 

5.96 

6.09 

6.17

5.44

Potassium 

(K)

--

Bicarbonate 

(HCOj)

2.59 

2.59 

2.64 

2.64 

2.72 

2.72

2.74 

2.69 

2.72 

a2.83 

2.67 

2.69

2.69 

2.61 

2.61 

2.57 

2.59 

2.62

2.61 

2.65 

2.61 

2.54 

2.59 

2.54

2.62

Sulfate 

(S0<)

0.83 

.87 

.90 

.90 

.92 

.96

1.02 

.92 

.92 

.92 

.92 

.92

.90 

.90 

.90 

.90 

.92 

.90

.90 

.92 

.90 

.92 

.90 

.90

0.90

Chloride 

(Cl)

4.68 

5.30 

5.87 

5.87 

5.75 

5.84

5.78 

5.53 

5.61 

5.73 

5.75 

5.78

5.64 

5.53 

5.56 

5.58 

5.64 

5.73

5.89 

6.06 

6.01 

5.98 

6.09 

6.12

5.50

Fluoride 

(F)

Nitrate 

(NO,)

0.04 

.04 

.04 

.04 

.03 

.02

.03 

.03 

.03 

.02 

.04 

.04

.03 

.01 

.04 

.04 

.05 

.04

.03 

.04 

.03 

.04 

.04 

.03

0.03

a Includes 0.13 equivalent per million of carbonate (CO,).
GILA RIVER BASIN--Continued 

VERDE RIVER BELOW BARTLETT DAM, ARIZ.

LOCATION. At gaging station 2 1/4 miles downstream from Bartlett Dam, Maricopa County, 

DRAINAGE AREA. 6,188 square miles.

RECORDS AVAILABLE.--Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum observed, 701 micromhos Oct. 30, Nov

Percent sodium: Maximum 31 Nov. 1-20; minimum, 17 June 21-30. 

EXTREMES, 1950-54. Specific conductance: Maximum observed, 725 micromhos June 28, 195

Percent sodium: Maximum, 31 July 21-31, 1951, Nov. 1-20, 1953; minimum, 12 Jan. 4-20

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

district office at Albuquerque, N. Mex. Records of discharge for water year October 

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

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

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

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

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

Dec. 11-20........

Dec. 21-31........

Jan. 1-10, 1954 . .. 

Jan. 11-20 ........

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

Runoff 

(acrefeet)

3,550 

13, 340 

1,930 

1,090 

1,010 

1,030

,080 

,040 

,130 

,060 

,010 

1.120

Silica 

(Si02) 

ppm

29 

23 

24 

47 

39 

23

23 

22 

23 

21 

29 

22

Equivalents per million

Calcium 

(Ca)

1.90 

2.00 

2.40 

3.12 

1.75 

2.25

2.30 

2.25 

2.40 

2.30 

2.35 

2.25

Magnesium 

(Mg)

2.55 

2.63 

3.12 

3.12 

3.12 

3.12

3.21 

3.12 

3.12 

3.04 

2.96 

2 88

Sodium 

(Na)

1.65 

1.70 

1.96 

2.26 

2.22 

1.96

1.91 

1.87 

1.91 

1.83 

1.91 

1 91

Potassium 

(K)

'--

Bicarbonate 

(HCO,)

4.05 

4.15 

4.92 

a4.76 

b4.60 

4.83

c4.94 

4.59 

4.97 

d4.94 

4.85

A fi7

Sulfate 

(SOJ

1.48 

1.60 

1.81 

1.79 

1.79 

1.75

1.71 

1.67 

1.62 

1.54 

1.56 

1 58

Chloride 

(Cl)

0.76 

.76 

.85 

.85 

.97 

.85

.82 

.79 

.82 

.79 

.79 

7fi

Fluoride 

(F)

Nitrate 

(NO,)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.00 

.00 

.00 

.00 

m

a Includes 0.43 equivalents per million of carbonate (CO3 ) 

b Includes 0.50 equivalents per million of carbonate (CO,) 

c Includes 0.37 equivalents per million of carbonate (CO,) 

d Includes 0.33 equivalents per million of carbonate (CO,)
GILA RIVER BASIN Continued

VERDE RIVER BELOW BARTLETT DAM, ARIZ.--Con

Chemical analyses, water year October 1953 to September 195

Date 

of 

collection

Feb. 1-10,1954... 

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

Feb. 21-28.......

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

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

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

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

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

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

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

May 11-20 .......

May 21-31 .......

June 11-20 .......

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

July 11-20 .......

July 21-31 .......

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

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

Aug. 21-31.......

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

Sept. 11-20 ......

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

992 

995 

791 

986 

1,040 

3,680

35, 500 

16, 340 

6,920 

3,440 

3,490 

3,760

10, 200 

17,410 

24, 550 

31,750 

22,820 

12, 500

11,860 

13, 670 

13, 640 

13, 460 

13, 630 

3,410

295, 300

Silica 

(Si02) 

ppm

23 

23 

23 

23 

25 

42

20 

20 

19 

17 

41 

47

18 

18 

19 

20 

20 

21

29 

21 

21 

24 

23 

23

22

Equivalents per million

Calcium 

(Ca)

2.50 

2.50 

2.45 

2.59 

2.30 

2.25

1.85 

1.65 

1.60 

1.60 

1.75 

1'.70

1.60 

1.50 

1.50 

1.70 

2.10 

2.20

2.20 

2.10 

2.20 

2.05 

2.05 

2.25

1.90

Magnesium 

(Mg)

2.80 

2.80 

2.88 

2.80 

3.04 

2.96

1.89 

1.48 

1.32 

.40 

.40 

.15

.32 

.15 

.99 

1.23 

1.89 

2.22

2.22 

1.97 

1.97 

2.22 

2.22 

2.38

1.81

Sodium 

(Na)

1.87 

1.87 

1.87 

1.87 

1.87 

1.73

1.17 

.87 

.91 

.78 

1.00 

1.26

.74 

.61 

.52 

.70 

1.17 

1.48

1.52 

1.30 

1.30 

1.52 

1.52 

1.52

1.13

Potassium 

(K)

0.06 

.07 

.07

.06

..

Bicarbonate 

(HCOS)

4.90 

4.88 

4.85 

4.95 

5.05 

4.72

3.69 

3.02 

2.93 

2.88 

3.23 

3.15

2.80 

2.51 

2.39 

2.88 

3.61 

3.93

3.85 

3.56 

3.65 

3.80 

3.79 

4.11

3.44

Sulfate 

(SOJ

1.56 

1.56 

1.54 

1.52 

1.54 

1.52

.90 

.69 

.60 

.65 

.58 

.62

.62 

.50 

.46 

.60 

1.08 

1.35

1.50 

1.29 

1.27 

1.44 

1.46 

1.46

1.00

Chloride 

(Cl)

0.76 

.76 

.76 

.73 

.73 

.71

.45 

.37 

.31 

.34 

.37 

.39

.34 

.27 

.25 

.28 

.51 

.65

.65 

.54 

.56 

.68 

.68 

.68

0.48

Fluoride 

(F)

Nitrate 

(NO,)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.02 

.01 

.01 

.00

.02 

.02 

.02 

.01 

.01 

.01

.02 

.03 

.02 

.02 

.02 

.02

0.01

B

P

e Sum of determined constituents.
GILA RIVER HASIN--Continued

AGUA FRIA RIVER BELOW LAKE PLEASANT DAM, 

LOCATION. At water stage recorder on canal, li miles downstream from Lake Pleasant D

Maricopa County, and 23 miles upstream from New River.

DRAINAGE AREA.--1,460 square miles, approximately (above Lake Pleasant). 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1954.

Water temperatures: December 1950 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum observed, 600 micromhos Sept. 26; 

Percent sodium: Maximum, 29 Sept. 21-30; minimum, 23 July 11-20. 

EXTREMES, 1951-54.--Specific conductance: Maximum observed, 600 micromhos Sept. 26, 

Percent sodium: Maximum, 29 Sept. 21-30, 1954; minimum, 14 Jan. 29-31, Feb. 1-10, 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records o

in district office at Albuquerque, N. Mex. Values shown as extremes relate to can

when there was flow, otherwise from Lake Pleasant at headgates, and are those for 

furnished by Maricopa Water District through Surface Water Branch, Tucson District 

given in WSP 1343.

Chemical analyses, water year October 1953 to Septemb

Bate 

of 

collection

Oct. 2, 9, 16, 23, 

30, 1953........

Nov. 6, 13, 20, 27 

Dec. 4, 11, 18,25 

Jan. 1, 8, 15, 22, 

29, 1954........

Feb. 5, 12, 19, 26 

Mar. 5, 12, 19, 26

Apr. 2, 9, 16. . ...

Apr. 19-30.... ...

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

May 11-14. .......

May 21, 28, 

June 4 ..........

Runoff 

(acrefeet)

1,140 

872 

106

Silica 

(Si02) 

ppm

15 

14 

15

Equivalents per million

Calcium 

(Ca)

1.90 

2.20 

2.00

2.45 

2.45 

2.54

2.20 

2.15 

1.95 

2.00

2.20

Magnesium 

(Mg)

1.40 

1.40 

1.48

1.48 

1.48 

1.15

1.07 

1.15 

1.07 

1.07

1.07

Sodium 

(Na)

1.52 

1.26 

1.48

1.13 

1.17 

1.22

1.04 

1.35 

.96 

1.09

1.13

Potassium 

(K)

0.12

Bicarbonate 

(HCOS)

3.34 

2.95 

3.06

Sulfate 

(SOJ

0.77 

.71 

.71

Chloride 

(Cl)

0.62

.45 

.51

Fluoride 

(F)

Nitrate 

(NO,)

0.07 

.05 

.04
GILA RIVER BASIN Continued

AGUA FRIA RIVER BELOW LAKE PLEASANT DAM, ARIZ 

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

June 5-10, 1954. . . 

June 11-20.......

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

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

July 21-31. .......

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

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

Aug. 21-31.......

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

Sept. 11-20. ......

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

Total or 

weighted average3-

Runoff 

(acrefeet)

608 

1,510 

2,510 

2,580 

2,630 

2,770

2,400 

2,740 

2,580 

2,500 

2,100 

591

27,640

Silica 

(SiOs) 

ppm

9.7 

7.8 

13 

12 

11 

14

13 

14 

16 

16 

17 

19

14

Equivalents per million

Calcium 

(Ca)

2.15 

1.85 

1.95 

1.90 

2.00 

1.95

2.00 

2.05 

1.95 

1.85 

1.90 

2.00

1.95

Magnesium 

(Mg)

1.15 

1.15 

1.07 

1.15 

1.15 

1.15

1.15 

1.07 

1.15 

1.32 

1.48 

1.48

1.15

Sodium 

(Na)

1.13 

1.04 

1.00 

.96 

.96 

1.04

1.09 

1.04 

1.09 

1.17 

1.26 

1.39

1.09

Potassium 

(K)

Bicarbonate 

(HC03)

3.28 

2.93 

2.97 

2.93 

2.98 

3.05

3.13 

3.06 

3.02 

3.00 

3.20 

3.62

3.06

Sulfate 

(SOJ

0..75 

.89 

.69 

.67 

.65 

.65

.67 

.67 

.69 

.85 

.81 

.77

0.71

Chloride 

(Cl)

0.54 

.48 

.48 

.48 

.48 

.48

.54 

.51 

.51 

.56 

.56 

.62

0.51

Fluoride 

(F)

Nitrate

(Ncg

0.04 

.03 

.03 

.05 

.03 

.04

.03 

.05 

.05 

.03 

.02 

.02

0.04

a No flow Oct. 1-Apr. 18, May 15-June 4.
PART 10. THE GREAT BASIN

SEVIER LAKE BASIN 

SEVIER RIVER NEAR LYNNDYL, UTAH

LOCATION.--At county highway bridge, 1| miles upstream from gaging station, which is 

DRAINAGE AREA. 6,270 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 4,590 micromhos Jan. 3; min

Percent sodium: Maximum, 59 Aug. 11-20, 21-31; minimum, 43 July 27-29. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 5,630 micromhos Mar. 13, 19

Percent sodium: Maximum, 60 Sept. 11-20, 1951; minimum, 39 Oct. 5-6, 8-9, 1952.

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

available in district office at Salt Lake City, Utah. Records of discharge for wa

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-10, 1953 

Oct. 11-20.....

Oct. 21-31.....

Nov. 1-10. .....

Nov. 11-20.....

Nov. 21-30.....

Dec. 1-10......

Dec. 11-20.....

Dec. 21-31.....

Runoff 

(acrefeet)

1,470 

710 

736

962 

1,270 

571

500 

480 

436

 Silica 

(Si02) 

Ppm

21 

19 

19

17 

17 

22

24 

24 

27

Equivalents per million

Calcium 

(Ca)

4.79 

6.19 

6.49

4.69 

4.99 

7.49

8.03 

8.28 

7.98

Magnesium 

(Mg)

8.80 

11.10 

11.02

7.57 

8.47 

11.84

12.25 

12.17 

12.91

Sodium 

(Na)

15.26 

20.74 

20.52

11. 18 

12.74 

22.92

25.18 

25.48 

27.66

Potassium 

(K)

0.19 

.20 

.20

.14 

.15 

.20

.21 

.21 

.20

Bicarbonate 

(HC03)

5.46 

5.38 

5.59

5.01 

5.15 

6.19

6.36 

6.75 

6.52

Sulfate 

(S0<)

9.24 

12.78 

12.80

7.35 

8.39 

14.34

15.70 

15.70 

16.70

Chloride 

(Cl)

14.05 

19.88 

19.60

11.00 

12.55 

22.42

23.97 

23.69 

24.96

Fluoride 

(F)

Nitrate 

(NO,)

0.04 

.02 

.02

.04 

.03 

.03

.03 

.03 

.06
SEVIER LAKE BASIN--Continued 

SEVIER RIVER NEAR LYNNDYL, UTAH Contin

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Jan. 1-10, 1954 

Jan. 11-20.....

Jan. 21-31.....

Feb. 1-10. .....

Feb. 11-20.....

Feb. 21-28.....

Mar. 1-3 ......

Mar. 4-10 .....

Mar. 11, 13-19. 

Mar. 12 .......

Mar. 20-31 .... 

Apr. 1-10......

Apr. 11-20 .... 

Apr. 21-30 ....

May 1-10 ......

May 11-20 .....

May 21-31 .....

June 11-20.....

June 21-30. ....

July 1-10 ......

July 11-20 .....

July 21-26, 30-31 

July 27-29 .....

Runoff 

(acrefeet)

397 

373 

420

397 

411 

282

141 

468 

587 

75 

516

540 

916 

10, 560

12, 170 

12,800 

10, 400

4,020 

6,000 

12,360

11,470 

8,350 

3,130 

883

Silica 

(Si02) 

ppm

25 

24 

23

24 

22 

22

26 

19 

19 

23 

20

18 

21 

28

26 

24 

23

22 

23 

23

23 

26 

22 

18

Equivalents per million

Calcium 

(Ca)

8.38 

7.44 

7.39

7.73 

7.63 

7.78

6.49 

5.09 

5.09 

6.49 

6.69

5.64 

4.44 

4.29

4.39 

4.09 

4.19

4.24 

3.99 

3.99

3.84 

3.69 

3.89 

2.99

Magnesium 

(Mg)

12.66 

11.27 

11.84

13.16 

12.83 

12.91

11.68 

8.47 

9.37 

11.84 

12.17

9.87 

7.89 

7.81

7.98 

7.81 

7.98

8.31 

8.14 

8.22

8.39 

8.47 

8.39 

5.67

Sodium 

(Na)

26.87 

23.48 

22.39

25.31 

25.31 

26.35

22.22 

13.31 

13.39 

21.74 

22.22

16.05 

12.52 

15.57

16.00 

16.00 

16.00

16.18 

16.18 

16.78

17.09 

16.87 

16.78 

6.52

Potassium 

(K)

0.20 

.18 

.19

.20 

.21 

.23

.22 

.15 

.17 

.20 

.22

.20 

.18 

.19

.21 

.19 

.19

.20 

.20 

.21

.21 

.22 

.23 

.15

Bicarbonate 

(HC09)

6.82 

6.23 

6.13

6. 10 

6.15 

6.23

5.39 

5.05 

4.85 

5.13 

5.39

5.21 

4.85 

5.46

5.59 

5.51 

5.39

5.29 

5.15 

5.16

5.11 

5.20 

5.06 

4.59

Sulfate 

(S0<)

16.91 

14.32 

14.45

16.43 

16.07 

16.41

13.70 

8.47 

9.47 

14.01 

13.89

10.56 

7.81 

9.06

9.37 

9.16 

9.29

9.49 

9.35 

9.68

9.74 

9.58 

9.74 

3.98

Chloride 

(Cl)

24.82 

21.43 

21.43

23.97 

23.97 

24.54

21.43 

12.97 

13.31 

21.01 

21.15

16.22 

12.13 

12.83

12.97 

12.83 

13.11

13.82 

13.48 

14.16

14.33 

13.68 

14.52 

6.54

Fluoride 

(F)

Nitrate 

(NO,)

0.08 

.06 

.06

.05 

.04 

.03

.06 

.06 

.07 

.06 

.06

.05 

.05 

.16

.13 

.15 

.13

.13 

.14 

.15

.15 

.12 

.09 

.05
Aug. 1-10, 1954 

Aug. 11-20.....

Aug. 21-31.....

Sept. 1-10.....

Sept. 11-2(1.... 

Sept. 21-30 ....

Total or 

weighted average

7,050 

5,120

7,350

4,270

1,770 

1,670

132,000

21 

21

20

23

17 

17

23

3.64 

3.64

3.44

3.74

3.99 

4.09

4.19

8.72 

8.55

8.88

8.47

8.14 

8.22

8.39

17.44 

18.18

18.22

17.18

14.61 

14.83

16.70

.22 

.22

.25

.21

.18 

.16

0.20

5.11 

5.00

4.95

5.10

4.83 

4.87

5.28

9.89 

10.37

10.35

8.70 

8.95

9.72

14.38 

15.09

15.09

14.95

13.20 

13.40

14.07

.12 

.12

. 11

.11

.06 

.06

0.12
HUMBOLDT RIVER BASIN 

HUMBOLDT RIVER NEAR RYE PATCH, NEV.

LOCATION. Below Rye Patch Dam, 1,000 feet upstream from gaging statirm, and 2 miles 

DRAINAGE AREA.--13,700 square miles, approximately.

RECORDS AVAILABLE.--Chemical analyses: December 1951 to September 1954.

Water temperatures: December 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 4,010 micromhos Sept. 2; mi

Percent sodium: Maximum, 71 Sept. 1-5; minimum, 59 May 21-31, June 11-20. 

EXTREMES, 1951-54.--Specific conductance: Maximu-n daily, 4,010 micromhos Sept. 2, 19

Sept. 10, 1952.

Percent sodium: Maximum, 71 Sept. 1-5, 1954; minimum, 48 Aug. 11-20, Sept. 1-10, 1

REMARKS. Values reported for dissolved solids are residue on evaporation. Records o

available in district office at Salt Lake City, Utah. Discharge records for gagin

October 1953 to September 1954 givpn in WSP 1344. No appreciable inflow between g

during periods of local rains.

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-10, 1953 . . . 

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

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

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

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

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

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

Dec. 11-20. .......

Dec. 21-24 .......

Mar. 22-31, 1954 . 

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

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

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

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

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

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

Runoff 

(acrefeet)

3,110 

1,830 

124 

708 

504 

260

256 

585 

162 

3,210

3,780 

6,220 

9,100 

8,630 

9,030 

8,070

Silica 

(Si02) 

ppm

52 

51 

48 

46 

51 

51

49 

48 

48 

48

49 

48 

43 

36 

37 

36

Equivalents per million

Calcium 

i (Ca)

2.15 

2.20 

2.15 

2.15 

2.10 

2.10

2.15 

2.10 

2.15 

2.10

2.10 

2.10 

2.15 

2.20 

2.20 

2.30

Magnesium 

(Mg)

'1.97 

1.97 

1.89 

1.89 

1.89 

1.89

1.89 

1.89 

1.89 

2.06

2.14 

2.06 

2.06 

1.97 

1.97 

1.97

Sodium 

(Na)

7.00 

7.00 

7.13 

7.13 

7.00 

7.00

7.00 

7.04 

7.04 

7.31

7.31 

7.17 

7.17 

7.04 

6.91 

6.78

Potassium 

(K)

0.51 

.51 

.51 

.51 

.49 

.49

.49 

.51 

.49 

.49

.51 

.51 

.46 

.46 

.46 

.46

Bicarbonate 

(HC03)

a6.00 

5.90 

5.93 

5.90 

a5.88 

5.87

a 5. 84 

a 5. 85 

a 5. 85 

a 5. 94

a 5. 90 

a5.91 

a 5. 81 

a5.75 

a5.75 

a5.61

Sulfate 

(S04)

2.25 

2.31 

2.27 

2.27 

2.19 

2.19

2.19 

2.19 

2.19 

2.29

2.31 

2.31 

2.25 

2.21 

2.25 

2.19

Chloride 

(Cl)

3.36 

3.36 

3.33 

3.36 

1 3.41 

3.41

3.41 

3.44 

3.50 

3.55

3.61 

3.67 

3.61 

3.50 

3.47 

3.38

Fluoride 

(F)

Nitrate 

(NO,)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.00 

.00

.00 

.00 

.00 

.00 

.01 

.01

a Includes equivalent of carbonate.
June 1-10, 1954 . . . 

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

June 21-30., ......

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

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

July 21-31 ........

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

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

Aug. 21-23, 26-27. 

Aug. 29, 31.......

Sept. 1-5 .........

Total or 

weighted average

3,820 

2,810

7,070

9,560

8,210

3,020

1,670

3,930

2,350 

1,190

1,180

=100,400

36 

36

47

48

48

49

51

53

58 

60

56

45

2.20 

2.20

1.95

2.10

2.15

2.20

2.10

2.15

2.30 

2.69

5.29

2.20

1.97 

2.06

1.97

1.89

1.97

2.06

2.14

2.38

2.71 

3.37

4.36

2.06

6.87 

6.78

6.91

7.09

7.13

7.57

8.13

9.44

11.13

15.74

26.18

7.61

.46 

.46

.43

.46

.51

.51

.56

.59

.69 

.92

1.20

0.51

5.60 

a 5. 57

5.41

5.51

5.60

5.64

5.67

5.77

6.10 

6.65

8.26

a 5. 56

2.27 

2.25

2.31

2.33

2.39

2.58

2.66

2.81

3.14 

3.79

3.83

2.37

3.38 

3.41

3.44

3.55

3.78

4.34

4.91

5.58

7.25 

12.24

24.96

4.09

.01 

.01

.01

.01

.02

.01

.01

.03

.02 

.02

.04

0.01

a Includes equivalent of carbonate. 

bSum of determined constituents, 

c Represents 97 percent of runoff for water year October 1953 to September 1954.
PART 11. PACIFIC SLOPE BASINS IN CALIFORN

SAN JOAQUIN RIVER BASIN 

SAN JOAQUIN RIVER NEAR BIOLA, CALIF.

LOCATION. At Skaggs Bridge, 1.9 miles upstream from gaging station, and about 2.5 mil

DRAINAGE AREA.--1,805 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses:. November 1952 to September 1954.

Water temperatures: November 1952 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 124 micromhos Apr. 3; minimu

Percent sodium: Maximum, 44 Feb. 1-10, Mar. 11-20, May 21-31; minimum, 31 Oct. 11-2

EXTREMES, 1952-54.--Specific conductance: Maximum daily, 170 micromhos Jan. 3, 1953; 

Percent sodium: Maximum, 49 Nov. 1-5, 7-10, 1952; minimum, 30 Jan. 3-13, 1953.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Sacramento, Calif. Records of discharge for water year Octob

appreciable inflow between sampling point and gaging station except during periods 

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953.... 

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

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

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

Dec. 11-20........

Dec. 21-31........

Jan. 1-10, 1954 ... 

Jan. 11-20 ........

Jan. 22-25, 30-31..

Runoff 

(acrefeet)

16,040 

16, 500 

12,630 

9,510 

7,120 

3,810

4,520 

5,170 

3,840 

6,890 

7,640 

3,020 

5,170

Silica 

(Si02) 

ppm

6.4 

7.5 

7.7 

8.8 

8.4 

5.8

6.4 

6.6 

10 

6.5 

6.2

Equivalents per million

Calcium 

(Ca)

0.15 

.15 

.18 

.20 

.22 

.30

.27 

.26 

.31 

.25 

.22 

.27 

.22

Magnesium 

(Mg)

0.13 

.13 

.10 

.10 

.10 

.14

.13 

.12 

.11 

.12 

.12 

.17 

.09

Sodium 

(Na)

0.15 

.14 

.18 

.20 

.24 

.27

.24 

.25 

.30 

.22 

.22 

.27 

.22

Potassium 

<K)

0.02 

.02 

.03 

.03 

.01 

.03

.03 

.03 

.03 

.04 

.04 

.03 

.03

Bicarbonate 

(HCOj)

0.30 

.28 

.33 

.31 

.38 

.52

.46 

.44 

.51 

.41 

.38 

.44 

.38

Sulfate 

(SOJ

0.04 

.04 

.04 

.05 

.04 

.04

.04 

.05 

.05 

.04 

.04 

.05 

.05

Chloride 

(Cl)

0.11 

.10 

.11 

.15 

.17 

.15

.16 

.17 

.17 

.18 

.17 

.23 

.15

Fluoride 

(F)

0.01 

.01 

.01 

.01 

.00 

.01

.01 

.01 

.01 

.01 

.01

Nitrate 

(NO,)

0.02 

.01 

.01 

.01 

.00 

.02

.02 

.02 

.03 

.01 

.01 

.00 

.00
Feb. 1-10, 1954... 

Feb. 11-15........

Feb. 16-20........

Feb. 21-28........

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

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

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

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

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

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

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

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

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

June 1-10 .. 

June 11-20 . 

June 21-30. . 

July 1-10... 

July 11-20.. 

July 21-31..

9,680

5,820

1,480

1,960

2,280

2,330

2,610

2,430

2,870

9,200

24, 830

33, 520

18,480

4,330

3,190

2,350

2,190

2,170

2,220

2,430

2,230

2,540

2,320

2,220

1,780

249, 300

8.5

--

13

12

9.6

10

5.5

7.1

8.0

11

9.2

12

11

11

11

11

12

11

10

11

11

12

11

11

b9.0

.22

.24

.36

.37

.34

.33

.41

.43

.31

.24

.22

.22

.24

.27

.28

.31

'.31

.29

.28

.28

.24

.25

.20

.26

.29

0.23

.07

.08

.13

.18

.17

.15

.17

.21

.17

.12

.14

.14

.11

.11

.17

.18

.14

.18

.17

.16

.15

.13

.18

.18

.15

0.13

.26

.22

.34

.38

.38

.42

.44

.44

.38

.24

.20

.18

.30

.30

.30

.31

.32

.30

.29

.28

.29

.30

.29

.27

.28

0.23

.03

.04

.04

.05

.05

.04

.04

.05

.04

.04

.04

03

04

.05

.05

.05

.04

.04

.04

.04

.04

.04

.04

.03

.03

0.03

.36

.39

.62

.67

.67

.62

.75

.79

.62

.41

.38

.38

.43

.52

.59

.62

.62

.59

.59

.56

.56

.54

.54

.57

.57

0.41

.05

.05

.08

.09

.07

.09

.09

.09

.06

.04

.04

.05

.06

.05

.05

.05

.05

.05

.05

.05

.05

.06

.05

.05

.05

0.05

.18

.15

.19

.21

.19

.20

.21

.21

.18

.15

.15

.13

.15

.16

.16

.16

.15

.15

.14

.15

.13

.12

.12

.12

.13

0.14

.01

-_

.02

.02

.01

.01

.02

.01

.02

.02

.02

.02

.02

.02

.03

.02

.01

.02

.02

.02

.02

.02

.01

.01

bO.Ol

.01

.00

.02

.02

.01

.03

.01

.01

.02

.02

.01

.00

.00

.02

.01

.00

.00

.02

.01

.01

.02

.01

.02

.00

.01

0.01

b

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

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

Aug. 21-31........

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

Sept. 11-20. .......

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

Total or 

weighted average*

a Represents 100 percent of runoff for water year October 1953 to September 1954. 

b Represents 94 percent of runoff for water year October 1953 to September 1954.
SAN JOAQUIN RIVER BASIN Continued

SAN JOAQUIN RIVER NEAR VERNALIS, CALI

LOCATION. At gaging station at Durham Ferry highway bridge, 3 miles downstream from S

Vernalis, San Joaquin County.

DRAINAGE AREA. 14,010 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 1,090 micromhos July 30; min

Percent sodium: Maximum, 56 Jan. 21-31; minimum, 34 May 11-20. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 1,090 micromhos July 30, 195

Percent sodium: Maximum, 56 Jan. 21-31, 1954; minimum, 34 Apr. 1-10, May 1-10, 195

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Sacramento, Calif. Records of discharge for water year Octob

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

Nov. 1-10...

Nov. 11-20 ......

Nov. 21-30 ......

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

Dec. 11-20 ......

Dec. 21-31 ......

Tan. 1-10, 1954 .. 

Jan. 11-20.......

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

Runoff 

(acrefeet)

29, 040 

38, 440 

32,730

31,080 

33, 640 

34, 180

37, 800 

34, 080 

36, 460

30,230 

30, 110 

41.510

Silica 

(Si02) 

ppm

25 

18 

28

13 

26 

22

25 

15 

14

13 

12 

19

Equivalents per million

Calcium 

(Ca)

1.75 

1.40 

1.70

1.65 

1.65 

1.55

1.50 

1.45 

1.45

1.55 

1.70 

1.40

Magnesium 

(Mg)

1.15 

.90 

1.23

1.15 

1.15 

.99

.90 

1.23 

1.15

1.15 

1.23 

.90

Sodium 

(Na)

3.00 

2.44 

3.00

2.83 

2.70 

2.44

2.61 

2.78 

2.83

2.91 

3.26 

3.04

Potassium 

(K)

0.10 

.07 

.09

.09 

.07 

.06

.09 

.08 

.08

.08 

.08 

.08

Bicarbonate 

(HCOS)

2.21 

1.66 

1.85

1.79 

1.79 

1.75

1.70 

1.74 

1.69

1.70 

1.84 

1.75

Sulfate 

(SOJ

0.81 

.79 

.96

.90 

.87 

.79

.87 

.92 

.94

1.00 

1.19 

1 04

Chloride 

(Cl)

2.79 

2.26 

3.02

2.88 

2.85 

2.51

2.57 

2.79 

2.82

3.05 

3.19 

2 62

Fluoride 

(F)

0.01 

.01 

.01

.01 

.01 

.00

.01 

.01 

.01

.01 

.01 

.01

Nitrate 

(N03)

0.03 

.03 

.02

.02 

.02 

.02

.02 

.03 

.03

.02 

.03 

03
Feb. 1-10, 1954..

Feb. 11-14, 16...

Feb. 15, 17-20...

Feb. 21-28. ......

Mar. 1-5 ........

Mar. 6-10 .......

Mar. 11, 15-16 ..

Mar. 12-13, 18-19

Mar. 14, 17, 20..

Mar. 21-31 ......

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

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

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

May 1, 7-10

May 2-6 .........

May 11-20 .......

May 21-24 .......

May 25-26 .......

May 27-31 .......

33, 580

19, 340

34,060

44, 010

18, 050

8,620

17, 890

55,910

32, 730

141,000

123, 900

81, 320

95, 800

66, 820

49, 130

173, 800

74, 360

20, 370

28, 480

22

--

--

20

29

35

__

.-

19

8.9

10

12

6.6

1.50

1.50

1.25

1.30

1.35

2.15

.90

.44

.60

.60

.65

.75

.55

.70

00

. 00

.36

.70

1.15

1.15

1.07

.82

.99

.99

1.56

.58

.30

.40

.40

.42

.47

.36

.27

.35

31

.20

.38

.75

2.91

3.09

2.26

2.26

2.26

3.78

1.35

.52

.83

.87

.83

1.00

.65

C7 . U 1

.78

QQ . Jo

.42

1.00

1.78

.08

.09

.08

.08

.07

.09

.05

.04

.04

.04

.04

.04

.05

.04

.05

.04

.04

.05

.07

1.80

1.74

1.54

1.59

1.54

2.06

1.02

.59

.75

.88

.88

.93

.72

.66

OS . S7O

57

.52

.88

1.43

1.06

1.08

.87

.83

.83

1.12

.44

. 17

.31

.27

.27

.33

.20

.18

.23

12

.12

.35

.54

2.68

2.79

1.97

2.06

2.23

4.29

1.38

.51

.85

.76

.73

.96

.71

73

!40

.34

.82

1.64

.01

--

--

.01

.01

.01

__

--

.01

.02

.01

.01

.01

.03

.04

.03

.03

.02

.05

.01

.01

.01

.03

.02

.02

.02

.01

.02

.01

.00

.00

.02
SAN JOAQUIN RIVER BASIN Continued

SAN JOAQUIN RIVER NEAR VERNALIS, CALIF. Cont

Chemical analyses, water year October 1953 to September 195

Date 

of 

collection

June 1-10, 1954 ..

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

July 11-20 .......

July 21-31 .......

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

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

Aug. 21-31 ......

Sept. 1-ltt.......

Sept. 11-20 ......

Sept. 21-30 ......

Total or weighted 

average ^ .....

Runoff 

(acrefeet)

33,240 

26, 900 

16, 370

14, 450 

11, 030 

7,850

7,630 

11, 100 

14, 870

13,270 

14, 980 

16, 610

1,717,000

Silica 

(Si02) 

ppm

24 

27 

30

30 

30 

31

31 

32 

31

32 

34 

34

C 17

Equivalents per million

Calcium 

(Ca)

1.80 

1.90 

2.25

2.59 

2.79 

2.94

2.74 

2.50 

2.35

2.45 

2.40 

2.35

1.05

Magnesium 

(Mg)

1.07 

1.32 

1.81

1.48 

1.73 

1.81

2.14 

1.89 

1.75

1.75 

1.60 

1.75

0.73

Sodium 

(Na)

2.91 

3.22 

4.26

4.04 

4.04 

4.65

4.52 

4.52 

4.44

4.44 

4.44 

4.35

1.74

Potassium 

(K)

0.09 

.11 

.14

.14 

.14 

.14

.14 

.14 

.11

.12 

.13 

.10

0.06

Bicarbonate 

(HC03)

2.02 

2.28 

2.54

2.67 

2.62 

2.75

2.79 

2.82 

2.82

2.82 

2.87 

2.84

1.29

Sulfate 

(SOJ

0.92 

.96 

1.21

1.21 

1.15 

1.17

1.21 

1.29 

1.23

1.21 

1.17 

1.21

0.56

Chloride 

(Cl)

2.93 

3.44 

4.79

4.51 

4.85 

5.58

5.22 

4.65 

4.23

4.37 

4.37 

4.17

1.72

Fluoride 

(F)

0.02 

.02 

.02

.02 

.02 

.01

.01 

.01 

.01

.01 

.02 

.02

C 0.01

Nitrate 

(NO,)

0.02 

.03 

.05

.03 

.04 

.04

.06 

.02 

.05

.05 

.06 

.04

0.02

a Sum of determined constituents.

b Represents 100 percent of runoff for water year October 1953 to September 1954.

c Represents 77 percent of runoff for water year October 1953 to September 1954.
SAN JOAQUIN RIVER BASIN Continued 

MOKELUMNE RIVER AT WOODBRIDGE, CALIF

LOCATION.--At dam of Woodbfidge Irrigation District, San Joaquin County, 0.4 mile ups

DRAINAGE AREA. 644 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 84.6 micromhos Dec. 5; min

Percent sodium: Maximum, 28 Jan. 1-10, Apr. 11-20; minimum, 17 Oct. 11-20. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 202 micromhos Dec. 15, 195

Percent sodium: Maximum, 33 Nov. 21-30, 1952; minimum, 10 Dec. 22-23, 1952.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records 

in district office at Sacramento, Calif. Records of discharge for water year Oct

Chemical analyses, water year October 1953 to Sept

Date 

of 

collection

Oct. 1-10, 1953 . .. 

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

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

Nov. 1-10. . . .

Nov. 11-18 .......

Dec. 1-4, 6-10....

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 1-10, 1954 ... 

Jan. 11-20........

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

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

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

Feb. 21-28 .......

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

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

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

Runoff 

(acrefeet)

5,620 

6,360 

7,730 

7,440 

7,420

9,720 

1,280 

10,030 

11,010 

11,010 

9,300 

8,740

9,110 

10,050 

7,350 

8,610 

9,340 

9.080

Silica 

(Si02) 

ppm

8.6 

8.6 

9.1 

9.9 

6.2

5.0

6.8 

4.7 

6.6 

3.6 

5.7

8.1 

7.1 

8.7 

11 

8.9 

15

Equivalents per million

Calcium 

(Ca)

0.18 

.19 

.20 

.19 

.20

.22

.22 

.22 

.20 

.22 

.22

.24 

.24 

.24 

.25 

.25 

.26

Magnesium 

(Mg)

0.10 

.17 

.12 

.13 

.14

.14

.14 

.11 

.12 

.16 

.14

.12 

.11 

.14 

.15 

.15 

.16

Sodium 

(Na)

0.10 

.08 

.10 

.09 

.09

.09 

.08 

.09 

.12 

.14 

.09 

.14

.14 

.12 

.12 

.12 

.15 

.12

Potassium 

(K)

0.03 

.02 

.03 

.02 

.03

.03 

.04 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.03 

.02 

.02

Bicarbonate 

(HCO,)

0.31 

.33 

.33 

.31 

.31

.26 

.16 

.30 

.31 

.33 

.33 

.31

.33 

.34 

.38 

.36 

.36 

.36

Sulfate 

(S0<)

0.06 

.06 

.06 

.04 

.05

.05

.05 

.07 

.05 

.06 

.09

.08 

.09 

.07 

.08 

.09 

.09

Chloride 

(Cl)

0.03 

.08 

.08 

.08 

.09

.15 

.16 

.12 

.07 

.06 

.08 

.11

.08 

.06 

.08 

.11 

.12 

09

Fluoride 

(F)

0.01 

.01 

.01 

.00 

.00

.00

.00 

.00 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

Nitrate 

(NO

0.00 

.01 

.01 

.00 

.01

.01

.0

.00 

.0

.00 

.00

.00 

.0

.00 

.0

.0

.0
SAN JOAQUIN RIVER BASIN Continued 

MOKELUMNE RIVER AT WOODBRIDGE, CALIF. Conti

Date 

of 

collection

Apr. 1-10, 1954.. . 

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 21-31 ........

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

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

Aug. 21-31 .......

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

Sept. 11-20 .......

Total or 

weighted average a

Runoff 

(acrefeet)

16, 830 

14, 550 

16,240 

13,640 

18,940 

1 5,1.^0

1,940 

1,030 

734 

752 

778 

543

664 

1,390 

2,680 

2,730 

3,970 

4,160

266,000

Silica 

(Si02) 

ppm

11 

7.4 

10 

"<.6 

8.3 

9.6

9.1 

11 

13 

13 

11 

12

10 

12 

11 

11 

11 

11

8.5

Chemical analyses, water year October 1953 to September 195

f^uivalents per million

Calcium 

(Ca)

0,24 

.24 

.24 

.24 

.24 

.25

.24 

.24 

.22 

.23 

.22 

.22

.21 

.20 

.19 

.18 

.20 

.18

0.23

Magnesiujki 

VMg)

0.18 

.12 

.16 

.16 

.12 

.14

.12 

.14 

.16 

.19 

.16 

.18

.13 

.16 

.15 

.10 

.08 

.12

0.14

Sodium 

(Na)

0.12 

.15 

.12 

.12 

.09 

.12

.12 

.11 

.11 

.11 

.10 

.10

.12 

.10 

.10 

.10 

.10 

.09

0.11

Potassium 

(K)

0.02 

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03 

.03

.04 

.03 

.02 

.02 

.02 

.02

0.02

Bicarbonate 

(HCO,)

0.38 

.38 

.38 

.38 

.38 

.39

.38 

.39 

.39 

.43 

.36 

.39

.36 

.36 

.34 

.33 

.33 

.33

0.34

Sulfate 

(S0«)

0.08 

.06 

.06 

.06 

.06 

.06

.06 

.05 

.05 

.05 

.04 

.04

.05 

.05 

.04 

.03 

.04 

.04

0.06

Chloride 

(Cl)

0.07 

.08 

.09 

.11 

.07 

.08

.08 

.08 

.08 

.08 

.08 

.08

.07 

.06 

.06 

.04 

.04 

.05

0.08

Fluoride 

(F)

0.01 

.01 

.01 

.01 

.01 

.00

.00 

.00 

.00 

.00 

.01 

.00

.01 

.00 

.01 

.01 

.01 

.01

0.01

Nitrate 

(NO,)

0.01 

.01 

.00 

.01 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.01 

.02 

.00 

.00 

.00

0.00

B

p

0

a Represents 95 percent of runoff for water year October 1953 to September 1954.
SACRAMENTO RIVER BASIN

SACRAMENTO RIVER AT KNIGHTS LANDING, CALIF

LOCATION. At Southern Pacific Railroad bridge, at Knights Landing, Yolo County, just 

miles upstream from Sacramento. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 346 micromhos June 10; mini

Percent sodium: Maximum, 40 June 1-10, 11-20; minimum, 18 Mar. 1-10. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 447 micromhos Sept. 9, 1952

Percent sodium: Maximum, 46 May 12, 19, 21, 23-29, 1953; minimum, 15 Dec. 21-23, 2

REMARKS. Values reported for dissolved solids are residue on evaporation. Records o

available in district office at Sacramento, Calif. Records of discharge for water 

WSP 1345. Considerable inflow during irrigation season of irrigation waste water 

sampling site. Mixing not complete at sampling site.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . .

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

Oct. 21-31.. ....

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

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

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

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

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1954 .. 

Jan. 11-16.......

Jan. 17-20.......

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

Runoff 

(acrefeet)

144, 000

144,000 

159, 200

145, 900 

172,600 

198, 600

191,300 

173, 100 

178, 600

141, 700 

83, 860 

149,900 

517.300

Silica 

(Si02) 

ppm

24 

22 

28

25 

22 

26

17 

26 

15

15 

22

Equivalents per million

Calcium 

(Ca)

0.70 

.65 

.70

.65 

.65 

.65

.65 

.65 

.75

.70 

.75 

.55 

.55

Magnesium 

(Mg)

0.67 

.60 

.56

.61 

.58 

.51

.51 

.54 

.55

.63

.67 

.44 

.36

Sodium 

(Na)

0.61 

.48 

.57

.52 

.57 

.52

.42 

.44 

.52

.57 

.70 

.28 

.30

Potassium 

(K)

0.04 

.04 

.04

.03 

.03 

.04

.04 

.04 

.03

.04 

.04 

.04 

.03

Bicarbonate 

(HCOS)

1.49 

1.31 

1.31

1.34 

1.23 

1.23

1.25 

1.28 

1.34

1.41 

1.51 

1.02 

.98

Sulfate 

(SOJ

0.27 

.25 

.25

.21 

.27 

.23

.19 

.20 

.23

.23 

.33 

.15 

.15

Chloride 

(Cl)

0.22 

.23 

.25

.22 

.27 

.24

.21 

.22 

.25

.27 

.37 

.16 

.13

Fluoride 

(F)

0.01 

.01 

.01

.00 

.01 

.01

.01 

.01 

.01

.01 

.01

Nitrate 

(NOS)

0.01 

.01 

.00

.00 

.00 

.01

.02 

.01 

.01

.00 

.01 

.01 

02
SACRAMENTO RIVER BASIN Continued 

SACRAMENTO RIVER AT KNIGHTS LANDING, CALIF. C

Chemical analyses, water year October 1953 to September 1954

Date 

of 

collection

Feb. 1-10, 1954.. 

Feb. 11-20 ......

Feb. 21-28 ......

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

Mar. 11-20......

Mar. 21-31 ......

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

Apr. 11-20 ......

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

May 1 10 ........

May 11-20 .......

May 21-31 .......

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

June 11-20.......

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

July 11-20 .......

July 21-31 .......

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

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

Aug. 21-31 ......

Runoff 

(acrefeet)

460, 800 

460, 000 

362,200

322, 100 

420, 500 

432, 400

362, 600 

361, 600 

267, 600

223, 600 

159, 200 

153, 100

141, 000 

151, 100 

126, 900

133, 600 

141, 600 

162, 900

163,800 

168, 100 

191, 200

Silica 

(Si02) 

ppm

22 

23 

23

28 

25 

18

31

7.4 

17

10 

23 

25

22 

24 

26

24 

26 

24

22 

24 

25

Equivalents per million

Calcium 

(Ca)

0.60 

.60 

.60

.70 

.60 

.65

.70 

.70 

.65

.70 

.75 

.75

.85 

.90 

.70

.70 

.75 

.70

.60 

.70 

.75

Magnesium 

(Mg)

0.42 

.38 

.44

.51 

.42 

.48

.49 

.41

.45

.49 

.61 

.67

.90 

.72 

.52

.48 

.48 

.56

.79

.74 

.77

Sodium 

(Na)

0.30 

.28 

.27

.28 

.28 

.29

.30 

.30 

.36

.44 

.52 

.65

1.22 

1.13 

.61

.57 

.61 

.70

.78 

.83 

*- .91

Potassium 

(K)

0.03 

.04 

.04

.04 

.02 

.03

.03 

.03 

.04

.03 

.04 

.04

.05 

.05 

.04

.03 

.04 

.04

.04 

.04 

.03

Bicarbonate 

(HC03)

1.10 

1.02 

1.08

1.23 

1.05 

1.13

1.20 

1.11 

1.15

1.21 

1.34 

1.44

1.77 

1.74 

1.36

1.25 

1.36 

1.43

1.56 

1.67 

1.75

Sulfate 

(SOJ

0.15 

.16 

.15

.17 

.16 

.18

.17 

.17 

.19

.23 

.31 

.33

.65 

.56 

.31

.27 

.31 

.31

.35 

.38 

.38

Chloride 

(Cl)

0.14 

.14 

.13

.13 

.13 

.14

.14 

.12 

.15

.19 

.27 

.37

.51 

.45 

.24

.24 

.24 

.28

.31 

.31 

.34

Fluoride 

(F)

0.01 

.01 

.01

.01 

.01 

.01

.01 

.01 

.01

.01 

.01 

.00

.02 

.02 

.02

.01 

.02 

.01

.01 

.01 

.02

Nitrate 

(NOS)

0.01 

.01 

.01

.01 

.01 

.01

.01 

.01 

.01

.01 

.01 

.01

.00 

.01 

.00

.00 

.00 

.00

.01 

.00 

.00

B

p

0
 * CO *

t-' I> t-*

 *CP» IA ep ^

CM CM CN

.H .H O

t- 00 * 

CO CO CO

o o o t- ep tOO t- CM ep"oo"ep"

CN CO rt 

CM CM CM

en t- IA m ep IA

en IA oo

 H CM O

t-Ht-IO

o o o

SoS

t- o *

o * oo ^* ^* CO

§

o * 

en co

sss

CO Tf ten o co

IA ep tCO CO OO

IA O IA t- CO t-

 * * *

CM N CM

O O O 

CO lA tt-^CcTcM"

ep co tsen 

-o o

O CM CO 

r-t »H CM

 B.-&-&

0) 0) 0) 

CO CO CO

1

COtep o'

oo

CM

g

O

8~

CO

ep 

O

CO

o 

p°'

o o'

o 

o 

A

CMo'

CMo'

oo

CM

O

o'

oo *

o'

CO 

IAo'

IA

ep o'

CM 

CM

fi

IA"

tCMoo"

weighted Totalr a average 

IA *

<-H en h *^ 

$ h A 0) s-s

 as

0) Q. m 0) 

o 03 

« 5

IA CO

en it) *H en h *^ 

^ h

11

at h 

0) rt -R

0) h 

 S "K 

gS

unoff fornoff fr

percent of rof ercentu

100 Represents a 97 Represents b j

PACIFIC SLOPE BASINS IN CALIFORNIA 173
SACRAMENTO RIVER BASIN Continued

FEATHER RIVER AT NICOLAUS, CALIF.

LOCATION. At highway bridge at Nicolaus, Sutter County,just 0.4 mile upstream from gag

from Bear River. 

RECORDS AVAILABLE.--Chemical analyses: March 1951 to September 1954.

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 245 micromhos June 21; minimum 

Percent sodium: Maximum, 22 Jan. 1-10, 11-17, 19-20; minimum, 12 May 11-20. 

EXTREMES, 1951-54.--Specific conductance: Maximum daily, 245 micromhos June 21, 1954; m

Percent sodium: Maximum, 27 Dec. 1-2, 4, 7, 1952; minimum, 8 June 21-30, 1951, Jan. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Sacramento, Calif. Records of discharge for water y

given in WSP 1345.

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 . . . 

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

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

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

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

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

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

Dec. 11-20. .......

Dec. 21-31 .......

Jan. 1-10, 1954 ... 

Jan. 11-17, 19-20 . 

Jan. 18...........

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

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

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

Feb. 21-28. .......

Runoff 

(acrefeet)

59,370 

62, 180 

61,390 

54, 820 

90,370 

100,200

100,000 

82,610 

74, 280 

59, 270 

93,140 

37,880 

245, 400

152,600 

440,900 

223,500

Silica 

(Si02) 

ppm

11 

14 

13 

12 

14 

11

11 

12 

9.4 

9.4 

8.6

13

.16 

9.8 

14

Equivalents per million

Calcium 

(Ca)

0.65 

.65 

.60 

.60 

.55 

.50

.55 

.55 

.55 

.60 

.60

.46

.46 

.44 

.42

Magnesium 

(Mg)

0.39 

.39 

.41 

.43 

.37 

.37

.36 

.40 

.38 

.38 

.35

.34

.32 

.28 

.30

Sodium 

(Na)

0.22 

.22 

.20 

.25 

.18 

.22

.20 

.22 

.18 

.28 

.28 

.18 

.15

.18 

.14 

.14

Potassium 

(K)

0.03 

.03 

.03 

.04 

.04 

.02

.03 

.03 

.03 

.03 

.03 

.04 

.03

.02 

.02 

.02

Bicarbonate 

(HC03)

1.07 

1.07 

1.03 

1.08 

.93 

.92

.95 

1.00 

.97 

1.05 

1.00 

.64 

.77

.84

.74 

.74

Sulfate 

(SOJ

0.09 

.11 

.09 

.10 

.10 

.08

.09 

.09 

.10 

.09 

.12

.12

.09 

.10 

.09

Chloride 

(Cl)

0.16 

.10 

.08 

.09 

.09 

.08

.10 

.11 

.08 

.09 

.11 

.08 

.08

.08 

.06 

.06

Fluoride 

(F)

0.01 

.01 

.01 

.01 

.01 

.00

.01 

.01 

.01 

.01 

.01

.01

.01 

.01 

.01

Nitrate 

(NO,)

o.oi

,00 

.00 

.01 

.00 

.01

.01 

.01 

.00 

.01 

.01

.01

.00 

.01 

.00

B

p

0
Mar. 1-10, 1954 .. 

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

Mar. 21-23, 30-31. 

Mar. 24-29.......

Apr. 1-5..... ... ..

Apr. 6-10. ........

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

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

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

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

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

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

June 22-30 ........

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

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

July 21-31........

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

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

Aug. 21-31 .......

290,200 

608, 300

150,700 

151,300

139,000

314,600

390,500

417,900

282, 800

190,700

107,500

59,680

63,870

4,240

26,600

23,230

19,330

17,370

15,710

18, 320

25. 120

13 

9.0

11

10

12

12

13

16

16

18

16

16

18

17

18

18

.22 

.35

.44 

.45

.46

.34

.36

.32

.34

.37

.44

.50

.55

.65

.45

.55

.70

1.15

.70

.70

.53 

.26

.34 

.33

.32

.26

.24

.22

.24

.22

.28

.33

.41

.53

.79

.64

.56

.07

.50

.48

.14 

.15

.15 

.18

.17

.12

.12

.10

.10

.09

.12

.18

.18

.24

.22

.20

.22

.24

.26

.23

.23

.02 

.02

.02 

.02

.01

.01

.01

.02

.03

.02

.03

.03

.03

.04

.04

.04

.04

.04

.04

.04

.04

.77 

.62

.75 

.79

.77

.59

.62

.56

.61

.64

.74

.88

.97

1.18

1.21

1.23 I

on

1.23

1.26

.09 

.07

. 11 

.12

.09

.06

.06

.05

.06

.06

.07

09

.08

.10

.12

.12

.11

.10

.05 

.06

.06 

.07

.08

.03

.04

.06

.06

.04

.07

.09

.10

.13

.10

.10

.08

.10

.01 

.02

.02

.01

.01

.01

.00

.01

.01

no

.02

.01

.01

.01

.01

.01 

.01

.01 

.01

.01

.01

.00

.00

.00

.00

.01

.01

00

.01

.00

.00

.01

.00

.01

.02
SACRAMENTO RIVER BASIN Continued 

FEATHER RIVER AT NICOLAUS, CALIF. Continu

Chemical analyses, water year October 1953 to September 195

Date 

of 

collection

Sept. 1-10, 1954 .. 

Sept. 11-20 .......

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

Total or 

weighted average1

Runoff 

(acrefeet)

24,690 

26,720 

35,760

5,343,000

Silica 

(Si02) 

ppm

17 

16 

16

c!2

Equivalents per million

Calcium 

(Ca)

0.70 

.65 

.65

bO.42

Magnesium 

(Mg)

0.46 

.47 

.43

bO. 31

Sodium 

(Na)

0.24 

.24 

.22

0.15

Potassium 

(K)

0.04 

.04 

.04

0.02

Bicarbonate 

(HCO,)

1.25 

1.23 

1.20

0.75

Sulfate 

(S0<)

0.09 

.09 

.07

bO.08

Chloride 

(Cl)

0.11 

.09 

.10

0.07

Fluoride 

(F)

0.01 

.01 

.01

cO. 01

Nitrate 

(NO,,)

0.02 

.02 

.01

W.01

B

p

0

cO

a Represents 100 percent of runoff for water year October 1953 to September 1954. 

b Represents 99 percent of runoff for water year October 1953 to September 1954. 

c Represents 85 percent of runoff for water year October 1953 to September 1954.
SACRAMENTO RIVER BASIN Continued

AMERICAN RIVER AT FAIR OAKS, CALIF.

LOCATION. At highway bridge just downstream from gaging station at Fair Oaks, Sacra

and about 19 miles from mouth. 

DRAINAGE AREA. 1,921 square miles. 

RECORDS AVAILABLE. Chemical analyses: January to December 1906, March 1951 to Sept

Water temperatures: March 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 106 micromhos Aug. 20, 21; 

Percent sodium: Maximum, 20 Nov. 1-10, 11-20, Dec. 21-31, Feb. 1-10, Aug. ' " 

EXTREMES, 1951-54. Specific conductance: Maximum daily, 112 micromhos Aug.

Percent sodium: Maximum, 28 June 1-10, 1953; minimum, 8 Jan. 21-31, 1953. 

REMARKS. Values reported for dissolved solids are residue on evaporation.

1-10; m

28, 195

... - Records 

in district office at Sacramento, Calif. Records of discharge for water year Oc

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

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

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

Nov. 21-30 ......

Dec. 11-20. ......

Dec. 21-31. ......

Jan. 1-10, 1954 . . 

Jan. 11-20.......

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

Runoff 

(acrefeet)

7,450 

11, 110 

15, 820

9,040 

23, 760 

30, 330

34, 430 

25, 690 

26, 440

20, 550 

36, 260 

83. 680

Silica 

(Si02) 

ppm

10 

11 

12

12 

11 

11

8.3 

6.9 

7.3

6.4 

5.8 

12

Equivalents per million

Calcium 

(Ca)

0.38 

.44 

.38

.42 

.44 

.37

.36 

.36 

.35

.37 

.41 

.36

Magnesium 

(Mg)

0.21 

.21 

.22

.21 

.26 

.26

.23 

.20 

.18

.21 

.26 

.27

Sodium 

(Na)

0.15 

.16 

.15

.16 

.18 

.14

.12 

.12

.14

.14 

.17 

.11

Potassium 

(K)

0.03 

.03 

.02

.01 

.01 

.02

.02 

.04 

.02

.02 

.02 

.02

Bicarbonate 

(HCO,,)

0.57 

.62 

.54

.61 

.64 

.56

.54 

.54 

.52

.56 

.62 

.59

Sulfate 

(SOJ

0.07 

.10 

.09

.09 

.11 

.09

.10 

.08 

.08

.09 

.11 

.10

Chloride 

(Cl)

0.11 

.09 

.11

.14 

.14 

.11

.11 

.11 

.09

.10 

.10 

.09

Fluoride 

(F)

0.01 

.00 

.01

.00 

.01 

.00

.01 

.01 

.01

.01 

.01 

.01

Nitrate 

(NO,)

0.01 

.01 

.00

.00 

.00 

.01

.01 

.00 

.01

.00 

.01 

.01
SACRAMENTO RIVER BASIN Continued

AMERICAN RIVER AT FAIR OAKS, CALIF.--Con

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Feb. 1-10, 1954.. 

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

Feb. 21-28 ......

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

Mar. 11-20 ......

Mar. 21-31 ......

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

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

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

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

May 11-20 .......

May 21-31 .......

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

June 11-20.......

June 21-30.. .....

July 1 10 ........

July 11-20 .......

July 21-31 .......

Runoff 

(acrefeet)

38, 100 

123, 500 

58, 590

160, 300 

168, 200 

122, 900

180, 100 

178, 400 

188, 100

147, 600 

133, 500 

77,260

43, 200 

37,250 

23, 150

12,050 

8,610 

6,720

Silica 

(Si02) 

ppm

11 

9.7 

9.7

7.3 

9.6 

12

16 

7.1 

6.0

6.1 

8.2 

9.8

13 

13 

13

15 

16 

16

Equivalents per million

Calcium 

(Ca)

0.39 

.36 

.34

.32 

.32 

.36

.33 

.24 

.22

.22 

.19 

.24

.37 

.30 

.34

.42 

.48 

.55

Magnesium 

(Mg)

0.19 

.26 

.24

.21 

.24 

.27

.25 

.20 

.12

.19 

.15 

.14

.16 

.20 

.16

.26 

.28 

.21

Sodium 

(Na)

0.15 

.10 

.12

.09 

.10 

.14

.10 

.08 

.07

.05 

.05 

.08

.10 

.10 

.12

.13 

.16 

.18

Potassium 

(K)

0.02 

.02 

.02

.02 

.02 

.02

.02 

.02 

.03

.02 

.02 

.02

.02 

.02 

.02

.02 

.03 

.04

Bicarbonate 

(HC03)

0.56 

.57 

.57

.51 

.51 

.59

.56 

.43 

.34

.36 

.33 

.38

.44 

.49 

.52

.62 

.72 

.75

Sulfate

(scg

0.09 

.10 

.08

.07 

.07 

.10

.07 

.05 

.04

.05 

.03 

.05

.06 

.05 

.05

.07 

.08 

.09

Chloride 

(Cl)

0.09 

.08 

.09

.08 

.07 

.10

.07 

.06 

.05

.04 

.04 

.06

.16 

.07 

.08

.11 

.14 

.15

Fluoride 

(F)

0.01 

.01 

.00

.01 

.01 

.01

.01 

.01 

.01

.00 

.00 

.01

.00 

.00 

.00

.00 

.00 

.00

Nitrate 

(NOS)

0.00 

.01 

.00

.00 

.01 

.00

.00 

.00 

.00

.01 

.00 

.00

.01 

.00 

.00

.00 

.01 

.01
Aug. 1-10, 1954.. 

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

Aug. 21-31 ......

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

Sept. 11-20 ......

Sept. 21-30 ......

Total or weighted 

average a .....

4,590 

4,410

5,950

6,020

6,680

8,030

2,068,000

16 

14

13

12

12

13

9.6

.55 

.55

.55

.48

.44

.40

0.31

.26 

.26

.23

.24

.22

.24

0.21

.20 

.20

.17

.15

.15

.14

0.10

.04 

.04

.03

.03

.02

.02

0.02

.79 

.80

.75

.69

.64

.61

0.49

.10 

.10

.09

.08

.08

.07

0.07

.17 

.18

.16

.14

.14

.12

0.08

.00 

.01

.01

.01

-.00

.01

0.01

.01 

.00

.00

.01

.01

.00

0.00

a Represents 100 percent of runoff for water year October 1953 to September 1954.
PART 12 PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER CO

UPPER COLUMBIA RIVER BASIN

COLUMBIA RIVER MAIN STEM 

COLUMBIA RIVER AT INTERNATIONAL BOUNDAR

LOCATION. At cableway 2.2 miles downstream from gaging station, which is 0.5 mile down

10 miles upstream from Northport, Stevens County, Washington. 

DRAINAGE AREA.--59,700 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: February 1910 to January 1911, November 1951 to 

Water temperatures: November 1951 to September 1954. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 180 micromhos Jan. 22; minimu

Percent sodium: Maximum, 6 Nov. 1-10, Apr. 11-20, May 1-10; minimum, 3 July 21-31, A

EXTREMES, 1951-54. Specific conductance: Maximum daily, 190 micromhos Mar. 10, 1953; 

Percent sodium: Maximum, 6 during several periods; minimum, 3 July 21-31, Aug. 1-10, 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Portland, Oreg. Records of discharge for water year 

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 195a... 

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

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

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

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

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

Dec. 1-5. .........

Dec. 18-31. .......

Jan. 1-2, 22-31, 

1954 ............

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

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

Feb. 21-28. .......

Runoff 

(acrefeet)

1,267,000 

1,307,000 

1,460,000 

1,302,000 

1,179,000 

1,072,000

498,600 

1,180,000

821,400

690, 800 

680, 500 

598,000

Silica 

(Si02) 

ppm

6.1 

6.1 

6.5 

7.2 

7.1 

7.4

6.7 

8.1

7.4

7.3 

6.9 

6.9

Equivalents per million

Calcium 

(Ca)

1.15 

1.15 

1.15 

1.10 

1.20 

1.20

1.15 

1.20

1.25

1.25 

1.25 

1.25

Magnesium 

(Mg)

0.49 

.49 

.48 

.49 

.46 

.49

.52 

.49

.51

.49 

.51 

.50

Sodium 

(Na)

0.07 

.07 

.07 

.11 

.07 

.07

.06 

.07

.07

.07 

.07 

.07

Potas- . 

sium 

(K)

0.03 

.03 

.03 

.02 

.02 

.02

.01 

.01

.03

.03 

.03 

.03

Bicarbonate 

(HCOj)

1.41 

1.34 

1.33 

1.36 

1.29 

1.34

1.34 

1.38

1.38

1.41 

1.41 

1.34

Sulfate 

(SOJ

0.29 

.31 

.29 

.29 

.35 

.33

.37 

.40

.37

.42 

.40 

.42

Chloride 

(Cl)

0.02 

.04 

.06 

.05 

.03 

.02

.04 

.03

.03

.03 

.03 

.03

Fluoride 

(F)

Nitrate 

(NOS)

0.01 

.00 

.00 

.00 

.00 

.00

.01 

.01

.01

.01 

.01 

.00

B

p
Mar. 1-10, 1954 .. 

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

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

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 21-31 ........

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

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

Aug. 21-31........

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

Sept. 11-20 .......

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

Total or 

weighted average

920, 500 

1,004,000

1,063,000

776,700

1,021,000

1,396,000

1,651,000

6,808,000

6,733,000

6,636,000

6,377,000

7,148,000

7,500,000

6,171,000

3,812,000

3,081,000

3,030,000

2,591,000

1,940,000

1,496,000

186,390,000

7.0 

7.4

7.6

7.9

7.9

7.7

6.9

6.9

6.8

7.3

7.1

7.3

6.4

5.4

5.0

5.0

4.4

4.7

4.6

5.2

4.5

6.3

1.25 

1.30

1.30

1.20

1.15

1.10

1.10

1.00

1.00

1.05

1.05

1.00

1.00

1.00

.95

.95

1.00

1.00

.95

1.00

1.05

1.05

.52 

.48

.49

.48

.44

.46

.44

.40

.39

.42

.39

.40

.39

.39

.39

.36

.35

.36

.36

.37

.38

0.41

.08 

.10

.10

.10

.10

.09

.09

.08

.08

.08

.07

.07

.07

.06

.05

.05

.05

.05

.05

.06

.06

0.07

.03 

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

0.02

1.43 

1.41

1.39

1.39

1.34

1.36

1.33

1 91

1.20

1.26

1.25

1.21

1.20

1.18

1.16

1.16

1.16

1.15

1.15

1.15

1.15

1.23

.40 

.40

.42

.37

.35

.31

.31

.27

.23

.23

.21

.23

.21

.20

.20

.21

.23

.21

.21

.23

.27

0.25

.02 

.03

.02

.03

.03

.03

.03

no

.04

no

.03

.03

.02

.02

.02

.02

.02

.02

.02

.02

.03

0.03

.01 

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

.01

.01

.01

.01

.01

.01

.01

.01

0.01

aRepresents 97 percent of runoff for water year October 1953 to September 1954.
UPPER COLUMBIA RIVER BASIN Continued

COLUMBIA RIVER MAIN STEM Continued 

COLUMBIA RIVER AT GRAND COULEE DAM, WASH.

LOCATION.--At Grand Coulee Dam, Grant-Okanogan County line, 2,500 feet upstream from ga

from Nespelem River.

DRAINAGE AREA.--74,100 square miles, approximately. 

RECORDS AVAILABLE.--Chemical analyses: November 1950 to September 1954.

Water temperatures: November 1950 to September 1954.

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 174 micromhos Jan. 11; minimu

EXTREMES, 1950-54.--Specific conductance: Maximum daily, 183 micromhos Apr. 13, 21, 19

126 micromhos May 30-31, June 1, 1954. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Portland, Ore. Records of discharge for water year 

WSP 1346.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . .

On*- 1 1 9ft

On*- 91 ^1

Nov. 21-30 ......

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

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1954 . . 

Jan. 11-20.......

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

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

Feb. 11-20 ......

Feb. 21-28 ......

Runoff 

(acrefeet)

1,297,000 

1,371,000 

1,544,000

1,316,000 

1, 249, 000 

1,119,000

1, 191,000 

1,037,000 

1, 131,000

1,072,000 

1,338,000 

1,380,000

1,263,000 

1,071,000 

784.900

Silica 

(Si02) 

ppm

6.8

6.6 

6.8 

5.9

6.6 

5.9 

5.5

6.7

Equivalents per million

Calcium 

(Ca)

1.15

1.15 

1.10 

1.10

1.10 

1.10 

1.15

1.15

Magnesium 

(Mg)

0.31

.35 

.35 

.35

.37 

.42 

.37

.42

Sodium 

(Na)

0.09

.10 

.09 

.08

.08 

.11 

.09

.09

Potassium 

(K)

--

--

Bicarbonate 

(HCOS)

1.36

1.31 

1.31 

1.28

1.28 

1.28 

1.31

,34

Sulfate 

(SOJ

0.23

.27 

.27 

.27

.27 

.27 

.27

.3.

Chloride 

(Cl)

0.03

.04 

.03 

.04

.03 

.03 

.03

.04

Fluoride 

(F)

Nitrate 

(NO,)

0.01

.01 

.01 

.01

.01 

.01 

.01

.01

B
PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER BASIN 183

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	o

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t-' oo' oo' en oo' oo' oo' i> to' to'

ooooooooooooooo

ooo ooo ooo ooo ooo

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555 jij Sl-i sss ***
UPPER COLUMBIA RIVER BASIN Continued

COLUMBIA RIVER MAIN STEM Continued

COLUMBIA RIVER AT GRAND COULEE DAM, WASH. Con

Chemical analyses, water year October 1953 to September 195

Date 

of 

collection

Aug. 1-10, 1954..

Aug. 21-31. ......

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

Total or 

weighted average

Runoff 

(acrefeet)

3,844,000 

3, 140,000 

3, 119,000

2,674,000 

1,989,000 

1, 706, 000

98,040,000

Silica 

(SiOJ 

ppm

5.8

4.7

Equivalents per million

Calcium 

(Ca)

0.95

.95

Magnesium 

(Mg)

0.36

.35

Sodium 

(Na)

0.07

.07

Potassium 

(K)

--

--

Bicarbonate 

(HCO,)

1.21

1.18

Sulfate 

(S0«)

0.23

.21

Chloride 

(Cl)

0.03

.03

Fluoride 

(F)

Nitrate 

(NO,)

0.01 

.01

--

B

p
YAKIMA RIVER BASIN

YAKIMA RIVER AT KIONA, WASH.

LOCATION. At highway bridge just downstream from gaging station at Kiona, Benton Count

Canal and 25 miles upstream from mouth. 

DRAINAGE AREA.--5,600 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1952 to September 1954.

Water temperatures: December 1952 to September 1954. 

EXTREMES, 1953-54. Specific conductance: 

Percent sodium: Maximum, 29 Nov. 21-30,

EXTREMES, 1952-54. Specific conductance; Maximum daily, 385 micromhos, Sept. *.*,, *.w~ 

Percent sodium: Maximum, 29 Nov. 21-30, Dec. 12-17, 19-31, 1953, Jan. 1-10, Sept. 1-1

21-31, 1953, June 1-10, 1954.

REMARKS.--Values reported for dissolved solids are residue on evaporation. Records of 

in district office at Portland, Oreg. Discharge records for water year October 1953 

Chemical analyes, water year October 1953 to Septemb

Maximun daily, 367 micromhos Sept. 11; minimu

Dec. 12-17, 19-31 A Jan. 1-10, Sept. 1-10, 11-

18, 1953; 

Date 

of 

collection

Oct. 1-10, 1953 .. 

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

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

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

Nov. 11-20 ......

Nov. 21-30 ......

Dec. 1-11, 18.... 

Dec. 12-17,19-31 

Jan. 1-10, 1954 .. 

Jan. 11-20.......

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

Feb. 1-7, 9-10, 

23-27 ..........

Feb. 8, 11-22,28 

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

Mar. 11-20 ......

Mar. 21-31 ......

Runoff 

(acrefeet)

38,420 

39,870 

63,310 

42, 550 

42,010 

44, 090

65,970 

162, 500 

84,810 

94, 140 

92, 750

149, 100 

128, 800 

100, 900 

107,800 

87,550

Silica 

(Si02) 

ppm

32 

32 

26 

33 

32 

30

27 

20 

22 

16 

19

21 

20 

25 

23 

25

Equivalents per million

Calcium 

(Ca)

1.55 

1.60 

1.30 

1.45 

1.45 

1.35

1.20 

.85 

.80 

.65 

.65

.70 

.75 

.80 

.70 

.80

Magnesium 

(Mg)

0.99 

1.07 

.77 

.90 

.90 

.82

.82 

.38 

.44 

.49 

.51

.54 

.55 

.56 

.56 

.58

Sodium 

(Na)

1.00 

1.09 

.83 

.91 

.96 

.91

.78 

.52 

.52 

.40

.41

.48 

.52 

.48 

.42 

.48

Potassium 

(K)

0.10 

.09 

.08 

.08 

.09 

.08

.07 

.05 

.06 

.05 

.05

.05 

.06 

.06 

.05 

.05

Bicarbonate 

(HCO,)

2.98 

3.10 

2.46 

2.72 

2.72 

2.52

2.21 

1.51 

1.46 

1.28 

1.31

1.39 

1.51 

1.52 

1.41 

1.56

Sulfate 

(S0<)

0.44 

.48 

.33 

.40 

.42 

.40

.33 

.20 

.18 

.19 

.18

.10 

.23 

.18 

.16 

.19

Chloride 

(Cl)

0.17 

.20 

.17 

.21 

.23 

.23

.16 

.10 

.11 

.10 

.11

.18 

.13 

.12 

.09 

.11

Fluoride 

(F)

0.01 

.02 

.01 

.02 

.02 

.01

.01 

.01 

.02 

.02 

.01

.02 

.02 

.01 

.01 

.01

Nitrate 

(NOJ

0.03 

.03 

.03 

.04 

.05 

.05

.05 

.04 

.03 

.03 

.03

.04 

.04 

.03 

.03 

.02

B
YAKIMA RIVER BASIN Continued 

YAKIMA RIVER AT KIONA, WASH. Continued 

Chemical analyes, water year October 1953 to September 195

Date 

of 

collection

Apr. 1-10, 1954.. 

Apr. 11-17, 28-30 

Apr. 18-27.......

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

May 11-20 .......

May 21-31 .......

June 11-17, 19-21 

June 18, 22-30 . . . 

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

July 11-20 .......

July 21-31 .......

Aug. 1-31 .......

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

Sept. 11-20 ......

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

76, 900 

82,690 

130, 300 

84, 990 

173,800 

165, 200

113,700 

132,700 

165,400 

165, 100 

109,900 

56,930

139,300 

40, 500 

47, 720 

61,090

3,091,000

Silica 

(SiOj) 

ppm

18 

18 

18 

25 

21 

23

25 

23 

21 

19 

21 

28

31 

37 

38 

31

23

Equivalents per million

Calcium 

(Ca)

0.85 

.80 

.70 

.90 

.70 

.75

.85 

.80 

.65 

.65 

.75 

1.15

1.35 

1.50 

1.50 

1.25

0.90

Magnesium 

(Mg)

0.44 

.44 

.37 

.54 

.34 

.38

.52 

.40 

.34 

.34 

.40 

.68

.80 

.90 

.90 

.72

0.53

Sodium 

(Na)

0.48 

.48 

.36 

.52 

.34 

.39

.44 

.44 

.35 

.34 

.44 

.70

.87 

1.00 

1.00 

.78

0.52

Potassium 

(K)

0.05 

.05 

.05

.05 

.06

.06 

.06 

.05 

.05 

.05 

.07

.10 

.11 

.10 

.08

0.06

Bicarbonate 

(HCO,)

1.54 

1.46 

1.23 

1.67 

1.18 

1.31

1.56 

1.43 

1.15 

1.15 

1.38 

2.16

2.57 

2.90 

2.85 

2.33

1.64

Sulfate 

(SOJ

0.17 

.17 

.13 

.25 

.13 

.15

.19 

.17 

.14 

.14 

.18 

.29

.35 

.40 

.42 

.31

0.21

Chloride 

(Cl)

0.11 

.10 

.09 

.13 

.10 

.10

.11 

.09 

.08 

.07 

.08 

.14

.18 

.18 

.19 

.16

0.12

Fluoride 

(F)

0.01 

.02 

.02 

.00 

.01 

.00

.00 

.01 

.00 

.00 

.02 

.02

.02 

.02 

.00 

.02

0.01

Nitrate 

(NO,)

0.02 

.02 

.02 

.03 

.02 

.02

.02 

.03 

.02 

.02 

.03 

.03

.03 

.03 

.04 

.03

0.03

B

p

0
PART 13. SNAKE RIVER BASIN

SNAKE RIVER MAIN STEM 

SNAKE RIVER NEAR HEISE, IDAHO

LOCATION.--At Eagle Rock Canal headgate, li mile upstream from Heise, Bonneville County

canal headgate, If mile downstream from gaging station, about 4J miles east of Ririe

DRAINAGE AREA. 5,752 square miles (above gaging station).

RECORDS AVAILABLE. Chemical analyses: January 1953 to September 1954. 

Water temperatures: January 1953 to September 1954.

EXTREMES, 1953-54. Specific conductance: Maximum daily, 628 micromhos Dec. 25; minimu

Percent sodium: Maximum, 16 Sept. 11-20; minimum, 8 May 11-20.

EXTREMES, Jan. 1953 to September 1954. Specific conductance: Maximum daily, 628 micro

micromhos June 27, 1954. 

Percent sodium: Maximum, 16 Sept. 11-20, 1953; Sept. 11-20, 1954; minimum, 7 June 11

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Salt Lake City, Utah. Records of discharge for wate

given in WSP 1347. About 2.5 percent of normal annual stream flow of 5,000,000 acre 

sampling point and gaging station. This diversion occurs during the months May to N

headgate. No other diversion or appreciable inflow between sampling point and gagin

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . . . 

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

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

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

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

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

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

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 1-10, 1954 ... 

Jan. 11-20........

*». 21-31........

Runoff 

(acrefeet)

61,800 

57,920 

64,440 

56,930 

54, 190 

53,490

51,030 

49,150 

49, 430 

46, 510 

45,920 

50,960

Silica 

(Si02) 

ppm

11 

10 

10 

9.9 

10 

11

11 

10 

11 

11 

11 

11

Equivalents per million

Calcium 

(Ca)

3.29 

3.44 

3.39 

3.39 

3.44 

3.59

3.59 

3.59 

3.69 

3.54 

3.59 

3.59

Magnesium 

(Mg)

1.48 

1.56 

1.56 

1.64 

1.73 

1.56

1.56 

1.64 

1.73 

1.64 

1.64 

1.64

Sodium 

(Na)

0.57 

.61 

.61 

.61 

.65 

.65

.65 

.70 

.74 

.74 

.74 

.74

Potassium 

(K)

0.06 

.06 

.06 

.06 

.06 

.05

.05 

.06 

.06 

.06 

.06 

.06

Bicarbonate 

(HCOS)

3.31 

3.46 

3.51 

3.52 

3.57 

3.51

3. -61 

3.67 

3.80 

3.64 

3.64 

3.61

Sulfate 

(S0<)

1.50 

1.58 

1.58 

1.56 

1.65 

1.64

1.69 

1.67 

1.81 

1.71 

1.73 

1.73

Chloride 

(Cl)

0.45 

.48 

.51 

.51 

.51 

.56

.59 

.59 

.62 

.56 

.62 

.56

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.03

.03 

.02 

.01 

.02 

.02 

.02

Nitrate 

(NO,)

0.01 

.01 

.01 

.02 

.02 

.01

.01 

.03 

.02 

.02 

.02 

.01
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER NEAR HEISE, IDAHO Continu

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Feb. 1-10, 1954... 

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

Feb. 21-28. .......

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

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

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

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

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

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

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

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

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

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 .......

Total or 

weighted average

Runoff 

(acrefeet)

44,670 

44,730 

34,750 

43,160 

48,650 

49,610

53,450 

93, 980 

156,000 

186, 900 

364,000 

475,200

245,800 

223,500 

416,100 

340,600 

275,700 

252,400

211,300 

177,000 

177,600 

178,700 

155,500 

102,600

4,994,000

Silica 

(Si02) 

ppm

11 

11 

10 

11 

11 

11

10 

9.3 

12 

11 

10 

10

11 

11 

12 

11 

11 

11

14 

13 

14 

14 

15 

13

11

Equivalents per million

Calcium 

(Ca)

3.64 

3.54 

3.59 

3.74 

3.44 

3.49

3.39 

2.99 

2.69 

2.54 

2.15 

1.85

2.05 

2.20 

1.95 

1.80 

1.80 

1.85

1.85 

2.05 

2.00 

1.90 

1.90 

2.40

2.30

Magnesium 

(Mg)

.73 

.64 

.64 

.73 

.56 

.56

.56 

.32 

.07 

.99 

.80 

.72

.91 

.99 

.74 

.72 

.76 

.79

.81 

.90 

.90 

.82 

.81 

1.07

0.99

Sodium 

(Na)

0.74 

.70 

.74 

.74 

.74 

.78

.78 

.65 

.48 

.40 

.25 

.27

.34 

.36 

.29 

.30 

.33 

.38

.41 

.44 

.44 

.48 

.52 

.57

0.43

Potassium 

(K)

0.06 

.06 

.06 

.06 

.07 

.07

.07 

.06 

.05 

.04 

.03 

.04

.04 

.03 

.04 

.04 

.04 

.05

.06 

.05 

.05 

.05 

.05 

.05

0.05

Bicarbonate 

(HC03)

3.75 

3.59 

3.62 

3.75 

3.51 

3.57

3.52 

3.24 

2.92 

2.82 

2.41 

2.16

2.36 

2.64 

2.25 

2.08 

2.08 

2.13

2.07 

2.20 

2.20 

2.07 

2.18 

2.62

2.56

Sulfate 

(SOJ

1.79 

1.73 

1.75 

1.79 

1.58 

1.69

1.58 

1.21 

.94 

.83 

.56 

.50

.69 

.73 

.52 

.54 

.58 

.67

.71 

.79 

.81 

.75 

.77 

1.08

0.85

Chloride 

(Cl)

0.62 

.62 

.65 

.68 

.62 

.68

.65 

.51 

.31 

.24 

.14 

.15

.19 

.20 

.14 

.15 

.18 

.20

.21 

.23 

.26 

.26 

.34 

.39

0.28

Fluoride 

(F)

0.01 

.02- 

.02 

.01 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.01 

.01 

.01 

.02 

.02

.03 

.03 

.03 

.03 

.04 

.03

0.02

Nitrate

(NOJ

0.02 

.02 

.02 

.02 

.02 

.01

.01 

.01 

.03 

.02 

.03 

.02

.01 

.01 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.00 

.01

0.01
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER AT KING HILL, IDAHO

LOCATION.--At county highway bridge about 400 yards downstream from gaging station, wh

at King Hill, Elmore County, and 20 miles downstream from Malad River. 

DRAINAGE AREA.--35,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1954. 

Water temperatures: March 1951 to September 1954.

-------- - -- 574 mi cromhos Oct. 21; minim

24 Apr. 11-20, June 1-10.

594 micromhos Oct. 3, 1952; 

Percent sodium: Maximum, 29 July 21-31, 1951; minimum, 17 Apr. 1-10, 1951. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of 

available in district office at Portland, Oreg. Records of discharge for water yea

WSP 1347.

Chemical analyses, water year October 1953 to Septem

EXTREMES, 1953-54. Specific conductance: Maximum daily,

Percent sodium: Maximum, 28 Oct. 1-10, 11-20; minimum,

EXTREMES, 1951-54. Specific conductance: Maximum daily,

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

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

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

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

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

Dec. 11-20 .......

Dec. 21-31 .......

Jan. 1-10, 1954 . . . 

Jan. 18-25........

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

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

Feb. 21-28 .......

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

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

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

Runoff 

(acrefeet)

182,500 

186,800 

206,000 

183,200 

183,700 

199,300

197,800 

216,000 

224,900 

204,900 

161,200

202,900 

205,700 

166,600 

215,000 

204,600 

220.200

Silica 

(SiOj) 

ppm

41 

39 

38 

39 

36 

35

35 

35 

34 

37 

37

34 

34 

33 

32 

31 

32

Equivalents per million

Calcium 

(Ca)

2.45 

2.40 

2.45 

2.50 

2.40 

2.50

2.40 

2.45 

2.35 

2.40 

2.50

2.40 

2.35 

2.40 

2.30 

2.35 

2.40

Magnesium 

(Mg)

1.89 

1.89 

1.89 

1.89 

1.89 

1.89

1.81 

1.73 

1.81 

1.73 

1.73

1.64 

1.64 

1.64 

1.64 

1.56 

1.56

Sodium 

(Na)

1.70 

1.70 

1.61 

1.61 

1.61 

1.61

1.57 

1.57 

1.52 

1.48 

1.48

1.39 

1.39 

1.39 

1.35 

1.44 

1.44

Potassium 

(K)

0.11 

.12 

.09 

.09 

.08 

.08

.12 

.12 

.12 

.12 

.12

.12 

.12 

.12 

.12 

.09 

.09

Bicarbonate 

(HCOj)

3.83 

3.77 

3.77 

3.74 

3.70 

3.74

3.69 

3.69 

3.67 

3.67 

3.64

3.54 

3.52 

3.54 

3.44 

3.44 

3.47

Sulfate 

ISOJ

1.35 

1.31 

1.33 

1.39 

1.29 

1.31

1.23 

1.21 

1.19 

1.21 

1.23

1.19 

1.15 

1.15 

1.15 

1.12 

1.12

Chloride 

(Cl)

0.82 

.85 

.79 

.79 

.82 

.85

.85 

.85 

.85 

.85 

.85

.79 

.79 

.79 

.79 

.76 

.76

Fluoride 

(F)

Nitrate 

(NO,)

0.05 

.05 

.05 

.05 

.05 

.05

.06 

.06 

.06 

.05 

.05

.06 

.06 

.05 

.04 

.05 

.05
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER AT KING HILL, IDAHO Conti

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Apr. 1-10, 1954 .. 

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 -31 ........

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

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

Aug. 21-31 .......

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

Sept. 11-20 .......

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

Total or 

weighted average

Runoff 

(acrefeet)

239,600 

202, 800 

177,400 

151,500 

138, 100 

247,000

178, 800 

188,000 

160,700 

160,900 

151,600 

173,900

159,200 

159,500 

183,500 

167,600 

178, 200 

183,000

a6, 563, 000

Silica 

(SiO,) 

ppm

30 

28 

27 

27 

31 

33

34 

30 

38 

38 

37 

37

38 

37 

43 

39 

36 

37

35

Equivalents per million

Calcium 

(Ca)

2.35 

2.40 

2.30 

2.25 

2.00 

2.30

2.40 

2.35 

2.25 

2.25 

2.25 

2.30

2.30 

2.30 

2.30 

2.40 

2.40 

2.40

2.35

Magnesium 

(Mg)

1.56 

1.56 

.48 

.56 

.64 

.64

.64 

.64 

.73 

.81 

1.81 

1.81

1.73 

1.81 

1.73 

1.73 

1.73 

1.81

1.73

Sodium 

(Na)

1.35 

1.30 

1.30 

1.30 

1.39 

1.39

1.30 

1.39 

1.48 

1.52 

1.39 

1.52

1.52 

1.48 

1.52 

1.52 

1.52 

1.52

1.48

Potassium 

(K)

0.10 

.10 

.10 

.10 

.12 

.12

.11 

.12 

.12 

.10 

.12 

.12

.12 

.12 

.13 

.13 

.13 

.13

0.11

Bicarbonate 

(HCO,)

3.47 

3.43 

3.41 

3.38 

3.28 

3.44

3.47 

3.54 

3.57 

3.57 

3.54 

3.62

3.62 

3.62 

3.72 

3.65 

3.69 

3.70

3.59

Sulfate 

(S0«)

1.12 

1.10 

1.12 

1.10 

1.15 

1.17

1.12 

1.19 

1.19 

.17 

.17 

.21

.21 

.19 

.23 

.23 

.25 

.27

1.21

Chloride 

(Cl)

0.76 

.73 

.73 

.73 

.73 

.76

.71 

.73 

.73 

.79 

.73 

.79

.79 

.76 

.79 

.82 

.85 

.82

0.79

Fluoride 

(F)

Nitrate

(Ncg

0.05 

.05 

.05 

.04 

.05 

.05

.04 

.04 

.05 

.05 

.05 

.05

.05 

.05 

.07 

.07 

.07 

.07

0.05

a Represents 96 percent of runoff for water year October 1953 to September 1954.
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER NEAR CLARKSTON, WASH.

LOCATION.--One mile downstream from gaging station, 1 mile upstream from Alpowa Creek, 

and 133 miles upstream from mouth.

DRAINAGE AREA.--103,200 square miles, approximately (above gaging station). 

RECORDS AVAILABLE. Chemical analyses: November 1951 to September 1954.

Water temperatures: November 1951 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 500 micromhos Oct.

Percent sodium: Maximum, 36 Sept. 21-30; minimum, 26 Apr. 11-20. 

EXTREMES 1951-54.--Specific conductance: Maximum daily, 529 micromhos Nov.

Percent sodium: Maximum, 36 Sept. 21-30, 1954; minimum, 25 May 1-10, 11-20, 1952, A

REMARKS --Values reported for dissolved solids are residue on evaporation. Records of 

district office at Portland, Oreg. Discharge records for gaging station near Clark

given in WSP 1347. No appreciable inflow between gaging station and sampling point 

Chemical analyses, water year October 1953 to Septe

26; minim

30, Dec. 

Date 

of 

collection

Oct. 1-10, 1953 ... 

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

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

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

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

Dec. 1-6..........

Dec. 11-20........

Dec. 21-31........

Jan. 1-10, 1954 ... 

Jan. 11-20........

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

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

Feb. 21-28........

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

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

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

Runoff 

(acrefeet)

442, 700 

448, 700 

499,800 

468, 100 

443, 100 

515, 300

309, 200 

516, 100 

616, 700 

524, 400 

526, 000 

606, 300

669, 400 

762, 600 

652, 800 

713,500 

966, 300 

760. 700

Silica 

(Si03) 

ppm

31 

34 

32 

34 

31 

30

29 

28 

28 

27 

28 

28

27 

26 

27 

27 

24 

23

Equivalents per million

Calcium 

(Ca)

1.80 

1.95 

2.20 

1.80 

2.00 

1.80

1.80 

1.85 

1.70 

1.70 

1.80 

1.70

1.45 

1.35 

1.30 

1.40 

1.15 

1.25

Magnesium 

(Mg)

1.32 

1.32 

1.32 

1.23 

1.23 

1.15

1.07 

1.07 

1.15 

1.07 

1.15 

1.15

.99 

.90 

.81 

.82 

.72 

.74

Sodium 

(Na)

1.70 

1.74 

1.74 

1.65 

1.44 

1.44

1.30 

1.35 

1.22 

1.30 

1.22 

1.13

.96 

.91 

.83 

.91 

.70 

.83

Potassium 

(K)

0.11 

.12 

.11 

.11 

.10 

.10

.10 

.10 

.08 

.08 

.07 

.07

.07 

.07 

.05 

.05 

.05 

.07

Bicarbonate 

(HC03)

3.25 

3.48 

3.69 

3.16 

3.11 

2.79

2.69 

2.69 

2.62 

2.62 

2.69 

2.49

2.20 

2.05 

1.92 

2.08 

1.74 

1.93

Sulfate 

(S0<)

1.06 

1.04 

1.19 

1.12 

1.04 

1.06

1.00 

1.04 

.92 

.94 

.98 

.87

.75 

.71 

.67 

.71 

.56 

.65

Chloride 

(Cl)

0.48 

.45 

.51 

.51 

.51 

.51

.51 

.56 

.45 

.48 

.54 

.48

.45 

.39 

.34 

.34 

.28 

.31

Fluoride 

(F)

Nitrate 

(NO,)

0.03 

.03 

.03 

.03 

.04 

.04

.03 

.03 

.04 

.03 

.03 

.03

.03 

.03 

.03 

.02 

.02 

.03
SNAKE RIVER MAIN STEM Continued

SNAKE RIVER NEAR CLARKSTON, WASH. Conti

Chemical analyses, water year October 1953 to September 1

Date 

of 

collection

Apr. 1-10, 1954 .. 

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

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

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

May 11-22 .......

May 23-31 .......

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 ......

Total or 

weighted average

Runoff 

(acrefeet)

987,000 

1,684,000 

1,739,000 

1,848,000 

4, 024, 000 

2,199,000

1,835,000 

2,118,000 

2,206,000 

1,574,000 

951,100 

686, 900

489, 900 

446, 100 

559,900 

438, 100 

451,600 

446, 700

a35, 130,000

Silica 

(SiO,) 

ppm

23 

20 

17 

15 

12 

14

20 

17 

14 

16 

15 

20

25 

25 

24 

26 

32 

35

20

Equivalents per million

Calcium 

(Ca)

1.25 

.95 

.75 

.70 

.48 

.60

.90 

.85 

.75 

.80 

.90 

1.15

1.45 

1.50 

1.50 

1.65 

1.70 

1.75

1.10

Magnesium 

(Mg)

0.75 

.58 

.42 

.40 

.26 

.36

.50 

.43 

.37 

.41 

.49 

.67

.90 

.99 

.09 

1.07 

1.07 

1.07

0.65

Sodium 

(Na)

0.83 

.57 

.48 

.48 

.32 

.44

.65 

.57 

.48 

.52 

.65 

.96

1.22 

1.26 

1.35 

1.44 

1.57 

1.61

0.78

Potassium 

(K)

0.07 

.05 

.05 

.04 

.03 

.03

.05 

.05 

.04 

.04 

.05 

.06

.08 

.08 

.09 

.11 

.10 

.10

0.06

Bicarbonate 

(HCOj)

1.87 

1.43 

1.13 

1.08 

.75 

.98

1.41 

1.21 

1.07 

1.26 

1.36 

1.93

2.54 

2.62 

2.59 

2.85 

2.82 

3.02

1.69

Sulfate 

(SOJ

0.62 

.44 

.33 

.35 

.25 

.29

.46 

.40 

.33 

.33 

.46 

.67

.77 

.79 

.87 

.90 

1.06 

1.00

0.56

Chloride 

(Cl)

0.34 

.23 

.17 

.17 

.11 

.13

.21 

.17 

.15 

.16 

.20 

.28

.34 

.37 

.37 

.45 

.48 

.45

0.27

Fluoride 

(F)

Nitrate 

(NO,)

0.03 

.03 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

.02 

.02 

.02 

.03 

.04 

.03

0.02

B

a Represents 99 percent of runoff for water year October 1953 to September 1954.
BOISE RIVER BASIN

BOISE RIVER AT NOTUS, IDAHO

LOCATION.--At steel highway bridge 1,100 feet downstream from gaging station, a quart

County, and 7 miles northwest of Caldwell. 

DRAINAGE AREA.--3,820 square miles, approximately.

RECORDS AVAILABLE.--Chemical analyses: January 1939 to January 1940, November 1950 t

Water temperatures: November 1950 to September 1954. 

Sediment records: January 1939 to June 1940. 

EXTREMES, 1953-54.--Specific conductance: Maximum daily, 722 micromhos Aug. 18; mini

Percent sodium: Maximum, 50 July 11-20, Aug. 11-20, Sept. 1-10; minimum, 33 Apr. 1

EXTREMES, 1939-40, 1950-54.--Specific conductance: Maximum daily, 1,470 micromhos Ju

Apr. 27, 1952.

Percent sodium: Maximum, 64 Sept. 1-10, 1939; minimum, 25 Apr. 11-20, 1951.

REMARKS. Values reported for dissolved solids are residue on evaporation. Records o

available in district office at Portland, Oreg. Records of discharge for water ye

in WSP 1347.

Chemical analyses, water year October 1953 to Septe

Date 

of 

collection

Oct. 1-10, 1953. .. 

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

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

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

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

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

Dec. 1-10....

Dec. 11-20... .....

Dec. 21-31 .......

Jan. 1-10, 1954 . . . 

Jan. 11-20........

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

Runoff 

(acrefeet)

10, 100 

14, 300 

18,800 

15,530 

14, 280 

14, 120

13,790 

13, 400 

13,900 

11,980 

11,720 

14.750

Silica 

(Si02) 

ppm

33 

36 

37 

36 

37 

36

36 

35 

35 

38 

36 

33

Equivalents per million

Calcium 

(Ca)

1.95 

2.10 

2.50 

2.50 

2.50 

2.50

2.50 

2.45 

2.69 

2.69 

2.79 

2.69

Magnesium 

(Mg)

0.99 

1.07 

1.32 

1.23 

1.32 

1.32

1.23 

1.23 

1.23 

1.15 

1.15 

1.07

Sodium 

(Na)

2.83 

2.74 

3.26 

3.22 

3.30 

3.22

3.09 

3.09 

3.09 

2.91 

3.04 

2.65

Potassium 

(K)

0.10 

.10 

.12 

.12 

.12 

.12

.12 

.11 

.11 

.09 

.10 

.10

Bicarbonate 

(HCOS)

3.72 

a3.84 

4.51 

4.49 

4.46 

4.39

4.29 

4.26 

4.59 

4.29 

4.52 

4.26

Sulfate 

(S0<)

1.50 

1.52 

1.94 

1.94 

1.96 

1.89

1.83 

1.81 

1.81 

1.85 

1.85 

1.69

Chloride 

(Cl)

0.51 

.48 

.62 

.56 

.65 

.65

.62 

.62 

.62 

.59 

.59 

.59

Fluoride 

(F)

Nitrate 

(NOj

0.05 

.04 

.06 

.06 

.07 

.06

.06 

.04 

.04 

.03 

.01 

.02

a Includes 0. 47 equivalent per million of carbonate (CO,).
BOISE RIVER BASIN Continued

BOISE RIVER AT NOTUS, IDAHO--Continue

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Feb. 1-10, 1954... 

Feb. 11-19. .......

Feb. 20-28. .......

Mar. 1-9 .........

Mar. 10-18 .......

Mar. 19-22 .......

Mar. 23-31 .......

Apr. 1-5..........

Apr. 6-10. ........

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

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

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

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

May 21-26 ........

May 27-31 ........

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

June 11-23 ........

June 24-30 ........

July 1-5 ..........

July 6-10 .........

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

July 21-31 ........

Runoff 

(acrefeet)

15,250 

13,940 

31,760 

34,810 

83,720 

18,050 

18,710

6,620 

12, 540 

54,660 

54, 330 

31,220 

35,330 

50,180 

19, 540

35, 520 

24, 500 

34, 830 

11,110 

2,530 

4,640 

5,160

Silica 

(Si02) 

ppm

33 

31 

23 

21 

17 

21 

24

28 

21 

17 

16 

19 

17 

15 

IB

20 

22 

16 

20 

27 

28 

29

Equivalents per million

Calcium 

(Ca)

2.79 

2.25 

1.35 

1.20 

.85 

1.15 

1.65

2.00 

1.30 

.80 

.80 

.90 

.90 

.65 

.90

1.05 

1.20 

.80 

1.10 

1.75 

1.65 

1.90

Magnesium 

(Mg)

0.99 

1.07 

.51 

.46 

.30 

.47 

.77

.90 

.54 

.30 

.31 

.35 

.35 

.22 

.39

.43 

.51 

.30 

.44 

.82 

.90 

1.07

Sodium 

(Na)

2.44 

2.22 

1.09 

1.09 

.61 

.96 

1.65

2.26 

1.17 

.57 

.57 

.87 

.78 

.48 

.91

1.00 

1.35 

.65 

1.09 

2.26 

2.61 

2.74

Potassium 

(K)

0.09 

.08 

.04 

.04 

.04 

.04 

.06

.06 

.04 

.03 

.03 

.05 

.05 

.04 

.05

.05 

.05 

.04 

.06 

.11 

.10 

.10

Bicarbonate 

(HCO9)

4.20 

3.47 

1.97 

1.84 

1.25 

1.70 

2.52

3.11 

1.85 

1.16 

1.20 

1.48 

1.44 

1.05 

1.54

1.77 

2.15 

1.29 

1.90 

3.15 

3.38 

3.61

Sulfate 

(SOJ

1.48 

1.46 

.73 

.67 

.35 

.62 

1.15

1.50 

.79 

.33 

.33 

.44 

.44 

.25 

.50

.56 

.71 

.33 

.58 

1.29 

1.35 

1.50

Chloride 

(Cl)

0.54 

.42 

.23 

.20 

. 11 

.20 

.34

.42 

.25 

.11 

.12 

.15 

.15 

.09 

.17

.19 

.25 

.12 

.20 

.45 

.51 

.56

Fluoride 

(F)

Nitrate 

(N03)

0.05 

.09 

.05 

.06 

.04 

.05 

.06

.07 

.04 

.03 

.02 

.03 

.03 

.03 

.04

.04 

.04 

.03 

.03 

.04 

.05 

.05
Aug. 1-10, 1954... 

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

Aug. 21-31 .......

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

Sept. 11-20........

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

Total or 

weighted average

2,200 

2,400

6,440

4,240

10,710

7,360

799,000

30 

32

33

37

32

33

23

2.15 

2.25

2.05

2.30

1.95

2.15

1.40

1.23 

1.23

1.07

1.15

.99

1.07

0.61

3.39 

3.61

3.13

3.57

2.61

3.26

1.48

.12 

.12

.11

.12

.11

. 11

0.06

4.20 

4.38

3.98

b4.41

3.65

4.11

2.31

2.06 

2.12

1.71

2.04

1.48

1.79

0.87

.73 

.79

.71

.73

.51

.62

0.28

.04 

.05

.06

.06

.06

.08

0.04

b Includes 0.23 equivalent per million of carbonate (CO,).
PART 14. PACIFIC SLOPE BASINS IN OREGON AND LOWER COLUM

DESCHUTES RIVER BASIN 

DESCHUTES RIVER AT MOODY, NEAR BIGGS, ORE

LOCATION. At right bank, 0.5 mile upstream from bridge on U. S. Highway 30, 0.6 mile do

mile upstream from mouth, and about 4 miles southwest of Biggs, Sherman County. 

DRAINAGE AREA. 10,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1911 to July 1912, December 1952 to Febru

Water temperatures. December 1952 to February 1954. 

EXTREMES, 1952-53.--Specific conductance: Maximum daily, 141 micromhos Jan. 18, Mar. 26

Percent sodium: Maximum, 36 July 1-10; minimum, 27 Apr. 21-30. 

REMARKS. Values reported for dissolved solids are residue on evaporation. Records of s

available in district office at Portland, Oreg. Discharge records for water year Octo

Chemical analyses, October 1953 to February 195

Date 

of 

collection

Oct. 1-10, 1953 . . 

Oct. 11-20..

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

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

Nov. 11-20 ......

Nov. 21-30 ......

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

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-10, 1954 .. 

Jan. 11-20.......

Jan. 21-31 ......

Feb. 1-15 .......

Runoff 

(acrefeet)

95,350 

96, 120 

102,600 

97,920 

108,100 

138, 100

129, 800 

150,300 

194,200 

146,300 

141,800 

216,200

286,600

Silica 

(SiOJ 

ppm

31 

31 

34 

35 

34 

33

32 

32 

28 

30 

31 

31

31

Equivalents per million

Calcium 

(Ca)

0.35 

.33 

.33 

.35 

.33 

.33

.36 

.36 

.38 

.43 

.41 

.45

.38

Magnesium 

(Mg)

0.44 

.41 

.51 

.41 

.44 

.41

.34 

.33 

.30 

.35 

.35 

.24

.34

Sodium 

(Na)

0.52 

.56 

.48 

.61 

.41 

.39

.42 

.41 

.39 

.44 

.44 

.40

.39

Potassium 

(K)

0.06 

.05 

.05 

.05 

.05 

.05

.05 

.05 

.05 

.06 

.05 

.06

.06

Bicarbonate 

(HCO,)

1.16 

1.20 

1.21 

1.20 

1.11 

1.06

1.10 

1.03 

1.00 

1.15 

1.08 

1.03

1.05

Sulfate 

(S0«)

0.05 

.06 

.06 

.05 

.05 

.05

.04 

.04 

.04 

.05 

.04 

.05

.02

Chloride 

(Cl)

0.07 

.07 

.07 

.09 

.08 

.09

.06 

.08 

.06 

.07 

.07 

.06

.12

Fluoride 

(F)

0.00 

.01 

.00 

.02 

.01 

.01

.00 

.00 

.00 

.02 

.01 

.00

.00

Nitrate 

(NO,)

0.01 

.01 

.01 

.01 

.01 

.10

.01 

.01 

.01 

.02 

.02 

.02

.02

B

p
:OLUMBIA RIVER MAIN STEM

COLUMBIA RIVER AT MARYHILL FERRY NEAR RUFUS

LOCATION.--At Maryhill Ferry about 2J miles downstream from Rufus, Sherman County, and 

station, which is just upstream from Celilo Falls, 3 miles downstream from Deschutes 

Wasco County, and at mile 201.

DRAINAGE AREA. 237,000 square miles (above gaging station near The Dalles).

RECORDS AVAILABLE.--Chemical analyses: December 1950 to September 1954. 

Water temperatures: December 1950 to September 1954.

EXTREMES, 1953-54.--Specific conductance: Maximum daily. 242 micromhos Oct. 8; minimum 

Percent sodium: Maximum, 23 Oct. 1-10, Jan. 1-10, Mar. 11-20; minimum, 9 July 1-10, 

EXTREMES, 1950-54.--Specific conductance: Maximum daily, 268 micromhos Dec. 29, 1952; m

Percent sodium: Maximum, 32 Aug. 11-20, 1953; minimum, 9 July 1-10, 21-31, 1954.

REMARKS.--Values reported for dissolved solids are residue on evaporation unless otherw

daily samples available in district office at Portland, Oreg. Discharge records for 

October 1953 to September 1954 given in WSP 1348. These records include the inflow 

amounts to less than 5 percent of the annual runoff at the gaging station. No other 

gaging station except during periods of heavy local rains.

Chemical analyses, water year October 1953 to Septembe

Date 

of 

collection

Oct. 1-10, 1953... 

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

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

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

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

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

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

Dec. 11-20.......

Dec. 21-31. ......

Jan. 1-10, 1954 . . 

Jan. 11-20.......

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

Feb. 1-14.. ......

Feb. 15-28.......

Runoff 

(acrefeet)

2,008,000 

2,040,000 

2,153,000 

2,056,000 

2,047,000 

1,982,000

1,996,000 

2,079,000 

2,313,000 

2,191,000 

2,155,000 

2,565,000

3,463,000 

3.461.000

Silica 

(Si02) 

ppm

7.3 

9.0 

9.8 

12 

12 

12

14 

14 

15 

14 

14 

13

15 

16

Equivalents per million

Calcium 

(Ca)

1.10 

1.15 

1.20 

1.25 

1.25 

1.20

1.15 

1.15 

1.15 

1.20 

1.20 

1.15

1.05 

1.05

Magnesium 

(Mg)

0.63 

.55 

.50 

.53 

.51 

.56

.58 

.57 

.53 

.52 

.51 

.54

.65 

.61

Sodium 

(Na)

0.52 

.48 

.48 

.52 

.48 

.48

.48 

.48 

.48 

.52 

.48 

.44

.44 

.44

Potassium 

(K)

0.05 

.05 

.06 

.05 

.05 

.04

.06 

.04 

.05 

.05 

.05 

.05

.06 

.06

Bicarbonate 

(HCO,)

1.61 

1.61 

1.64 

1.67 

1.67 

1.67

1.67 

1.64 

1.64 

1.64 

1.66 

1.59

1.57 

1.54

Sulfate 

(SOJ

0.46 

.46 

.48 

.48 

.46 

.46

.46 

.44 

.44 

.44 

.44 

.42

.42 

.40

Chloride 

(Cl)

0.25 

.14 

.14 

.16 

.14 

.16

.16 

.14 

.16 

.14 

.14 

.15

.14 

.16

Fluoride 

(F)

.00 

.01 

.00

.00 

.01 

.01 

.02 

.02 

.02

.02 

.02

Nitrate 

(NOS)

0.02 

.02 

.03 

.02 

.02 

.02

.02 

.02 

.02 

.03 

.03 

.02

.03 

.04

B

0

a Sum of determined constituents.
COLUMBIA RIVER MAIN STEM. Continued

COLUMBIA RIVER AT MARYHILL FERRY NEAR RUFUS, ORE

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Mar. 1-10, 1954.. 

Mar. 11-20 ......

Mar. 21-31 ......

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

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

Apr. 21-30 ......

May 21-31 .......

June 21-30 .......

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

July 11-20 .......

July 21-31 .......

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

Aug. 11-20 ......

Aug. 21-31 ......

Sept. 11-20 ......

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

2,386,000 

2,902,000 

2,819,000

2,703,000 

3,221,000 

3,540,000 

4,005,000 

7,543,000 

11,610,000

10,060,000 

10,090,000 

9,771,000 

8,787,000 

9,070,000 

8,055,000

5,060,000 

4,062,000 

4,120,000 

3,519,000 

2,902,000 

2,620,000

jlSl^OpjOOO^

Silica 

(Si02) 

ppm

13 

13 

13

17 

13 

10 

12 

7.5 

8.5

13 

11 

9.8 

8.6 

8.4 

7.9

9.5 

8.2 

7.6 

8.0 

9.8 

12

11

Equivalents per million

Calcium 

(Ca)

1.05 

1.05 

1.10

1.05 

.90 

.80 

.80 

.70 

.80

.80 

.80 

.85 

.85 

.90 

.90

1.00 

1.00 

1.00 

1.05 

1.05 

1.15

0.95

Magnesium 

(Mg)

0.53 

.51 

.48

.46 

.40 

.31 

.33 

.29 

.27

.35 

.34 

.35 

.34 

.37 

.40

.34 

.32 

.39 

.40 

.43 

.47

0.40

Sodium 

(Na)

0.48 

.48 

.44

.37 

.36 

.30 

.27 

.19 

.17

.17 

.15 

.14 

.13 

.15 

.14

'.22 

.23 

.27 

.31 

.36 

.48

0.28

Potassium 

(K)

0.06 

.06 

.05

.05 

.05 

.05 

.05 

.04 

.04

.07 

.07 

.06 

.06 

.06 

.06

.04 

.04 

.04 

.04 

.04 

.05

0.05

Bicarbonate 

(HCOS)

1.56 

1.52 

1.54

1.46 

1.25 

1.10 

1.06 

.95 

.98

1.10 

1.08 

1.10 

1.15 

1.16 

1.23

1.28 

1.30 

1.34 

1.38 

1.41 

1.62

1.28

Sulfate 

(SOJ

0.40 

.40 

.38

.35 

.29 

.25 

.27 

.23 

.23

.23 

.20 

.20 

.20 

.23 

.23

.25 

.27 

.29 

.31 

.35 

.44

0.29

Chloride 

(Cl)

0.18 

.17 

.16

.11 

.12 

.10 

.08 

.05 

.05

.05 

.03 

.10 

.03 

.05 

.04

.07 

.06 

.08 

.08 

.10 

.15

0.0

Fluoride 

(F)

0.02 

.02 

.02

.02 

.02 

.02 

.02 

.01 

.01

.01 

.01 

.00 

.00 

.00 

.01

.00 

.00 

.01 

.01 

.02 

.00

0.01

Nitrate 

(NO,)

0.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.02 

.01 

.02

0.02

B
WILLAMETTE RIVER BASIN 

WIILAMETTE RIVER AT SALEM, OREG.

LOCATION. At bridge on Oregon Highway 22, 300 feet downstream from gaging station at 

DRAINAGE AREA. 7,280 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: August to December 1910, August 1911 to Augus

Water temperatures: February 1951 to September 1954. 

EXTREMES 1953-54. Specific conductance: Maximum daily, 109 micromhos Aug. 5; minimu

Percent sodium: Maximum, 32 Jan. 1-4, 8-10, 12, 14-16, June 1-10; minimum, 25 Oct. 

EXTREMES 1951-54. Specific conductance: Maximum daily, 109 micromhos Aug. 5, 1954; 

Percent sodium: Maximum, 36 July 11-20, 1952; minimum, 20 Apr. 11-20, 1951, May 11

REMARKS.--Values reported for dissolved solids are residue on evaporation unless othe

of daily samples available in district office at Portland, Oreg. Discharge record

given in WSP 1348.

Chemical analyses, water year October 1953 to Septem

Date 

of 

collection

Oct. 1-10, 1953 . 

Oct. 19-22, 24-27 

Oct. 11-18, 23, 

28-31 ..........

Nov. 1-10, 13 ... 

Nov. 11, 12, 

14-21..........

Nov. 22-30 ......

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

Dec. 11-20 ......

Dec. 21-31 ......

Jan. 1-4, 8-10, 

12, 14-16, 1954. 

Jan. 5-7, 11, 13, 

17-20 ..........

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

Feb. 1-4, 8, 10, 

13-16, 18, 20-23 

Feb. 5-7, 9, 

11-12, 17, 19, 

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

Runoff 

(acrefeet)

158,200 

178,800

213,600 

176,900

323,900 

1,728,000 

1,756,000 

1,630,000 

1,544,000

748, 600

1,019,000 

2,048,000

2,100,000 

1.217.000

Silica 

(SiO,) 

ppm

15 

15

15 

13

15 

14 

14 

12 

16

23

19 

15

15 

17

Equivalents per million

Calcium 

(Ca)

0.28 

.26

.28 

.33

.28 

.20 

.22 

.26 

.25

.30

.24 

.19

.26 

.32

Magnesium 

(Mg)

0.23 

.17

.20 

.11

.10 

.11 

.07 

.07 

.11

.13

.12 

.15

.05 

.06

Sodium 

(Na)

0.17 

.17

.17 

.18

.15 

.12 

.14 

.16 

.14

.22

.16 

.14

.15 

.16

Potassium 

(K)

0.02 

.02

.02 

.03

.03 

.02 

.03 

.03 

.03

.03

.03 

.03

.03 

.03

Bicarbonate 

(HCO,)

0.52 

.49

.49 

.52

.43 

.33 

.36 

.43 

.43

.54

.41 

.36

.39 

.43

Sulfate 

(SOJ

0.05 

.04

.05 

.05

.05 

.04 

.04 

.04 

.04

.05

.06 

.04

.04 

.04

Chloride 

(Cl)

0.09 

.08

.09 

.10

.08 

.06 

.06 

.06 

.05

.06

.06 

.05

.06 

.06

Fluoride 

(F)

0.01 

.00

.01 

.00

.00 

.00 

.00 

.01 

.00

.01

.01 

.01

.00 

.01

Nitrate 

(NO,)

0.02 

.02

.02 

.01

.02 

.02 

.02 

.02 

.02

.02

.02 

.02

.01 

01

a Sum of determined constituents.
WILLAMETTE RIVER BASIN Continued

WILLAMETTE RIVER AT SALEM, OREG. Cont

Chemical analyses, water year October 1953 to September 

Date 

of 

collection

Mar. 1-10, 1954.. 

Mar. 11-20 ......

Mar. 21-31 ......

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

Apr. 11-20 ......

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

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

May 11-20 .......

May 21-31 .......

June 11-20.......

June 21-30. .

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

July 11-20 .......

July 21-31 .......

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

Aug. 1 i -.20 ......

Aug. 21-31 ......

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

Sept. 11-20 ......

Sept. 21-30 ......

Total or 

weighted average

Runoff 

(acrefeet)

486,700 

668,800 

397,900

723,600 

671,800 

341,400 

258,800 

262,000 

261,200

280,700 

376,900 

274,900 

214,400 

168, 500 

150,900

123,000 

131,600 

154, 100 

146,000 

188,700 

173,900

21,300,000

Silica 

(Si02) 

ppm

16 

14 

16

15 

12 

16 

13 

14 

14

17 

17 

18 

19 

19 

20

19 

19

17 

18 

18 

17

15

Equivalents per million

Calcium 

(Ca)

0.29 

.26 

.28

.27 

.23 

.25 

.26 

.26 

.24

.26 

.22 

.24 

.24 

.30 

.28

.32 

.30 

.31 

.29 

.29 

.31

0.25

Magnesium 

(Mg)

0.12 

.12 

.15

.12 

.11 

.13 

.15 

.11 

. 12

.10 

.12 

.12 

.11 

.08 

.13

.16 

.13 

.12 

.12 

.11 

.16

0.11

Sodium 

(Na)

0.17 

.16 

. 18

.16 

.14 

.16 

.16 

.Ifi 

.15

.16 

.11 

.13 

.16 

.17 

.17

.22 

. 18 

.19 

.17 

.17 

.18

0.15

Potassium 

(K)

0.02 

.02 

.03

.03 

.03 

.03 

.03 

.03 

.03

.02 

.02 

.02

.02 

.02 

.0?, 

.03 

.03 

.02

0.03

Bicarbonate 

(HC03)

0.48 

.48 

.49

.43 

.41 

.44 

.46 

.43 

.46

.43 

.39 

.43 

.48 

.48 

.51

.54 

.52 

.51 

.51 

.49 

52

0.43

Sulfate 

(SOJ

0.05 

.04 

.06

.05 

.04 

.04 

.06 

.05 

.05

.05 

.04 

.04 

.03 

.05 

.05

.07 

.05 

.04 

.04 

.05 

.06

0.04

Chloride 

(Cl)

0.07 

.06 

.07

.06 

.06 

.07 

.06 

.05 

.05

.06 

.06 

.05 

.04 

.06 

.06

.10 

.08 

.07 

.06 

.06 

.08

0.06

Fluoride 

(F)

0.00 

.00 

.00

.01 

.01 

00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.01 

.00 

.01 

.00 

.00 

.01

0.06

Nitrate 

(NO,)

0.02 

.01 

.02

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.00

0.01
ROGUE RIVER BASIN

ROGUE RIVER AT GRANTS PASS, OREG.

LOCATION. At bridge on U. S. Highway 99 at Grants Pass, Josephine County, and 0.6 mil

DRAINAGE AREA.--2,420 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: January 1953 to September 1954.

Water temperatures: January 1953 to September 1954. 

EXTREMES, 1953-54. Specific conductance: Maximum daily, 251 micromhos Feb. 21;

Percent sodium: Maximum, 35 Oct. 11-20; minimum, 11 Feb. 16-22. 

EXTREMES, January 1953 to September 1954.--Specific conductance: Maximum daily, 

daily, 58.5 micromhos Jan. 19, 1943.

Percent sodium: Maximum, 35 Oct. 11-20, 1953; minimum, 11 Feb. 16-22, 1954. 

REMARKS. Values reported for dissolved solids are residue on evaporation unless other

minimu

251 mi

conductance of daily samples available in district office at Portland, Oreg. 

October 1953 to September 1954 given in WSP 1348.

Discha

Chemical analyses, water year October 1953 to Septemb

Date 

of 

collection

Oct. 1-10, 1953 . . 

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

rw»f 91 31

Nov. 1-21........

Nov. 22-30.......

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

Dec. 11-20.......

T*kw 91 ^1

Jan. 1-10, 1954 ..

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

Feb. 1-15, 23-28 

Feb. 16-22 ......

Mar. 11-20 ......

Mar. 21-31 ......

Runoff 

(acrefeet)

35,210 

38, 440 

37, 770 

79, 080 

255,700

203, 300 

133,000 

115,800 

94, 610 

227, 000 

363, 400

403, 200 

118,400 

102, 100 

99,710 

79.080

Silica 

(Si02) 

ppm

32 

31 

31 

30 

19

23 

22 

25 

25 

23 

22

25 

23 

28 

25 

26

Equivalents per million

Calcium 

(Ca)

0.35 

.35 

.39 

.40 

.33

.42 

.41 

.38 

.43 

.50 

.46

.65 

1.30 

.44 

.43 

.43

Magnesium 

(Mg)

0.41 

.34 

.40 

.24 

.18

.19 

.21 

.21 

.27 

.25 

.32

.04 

.39 

.29 

.24 

.29

Sodium 

(Na)

0.40 

.39 

.25 

.26 

.16

.21 

.21 

.29 

.24 

.23 

.24

.21 

.22 

.24 

.21 

.24

Potassium 

(K)

0.04 

.04 

.04 

.04 

.04

.04 

.04 

.03 

.05 

.04 

.04

.04 

.05 

.03 

.04 

.04

Bicarbonate 

(HC03)

1.08 

.84 

.84 

.85

.57

.75 

.75 

.75 

.85 

.90 

.90

.84 

1.61 

.90 

.80 

.88

Sulfate 

(S0<)

0.05 

.05 

.05 

.04 

.04

.04 

.04 

.04 

..05 

.05 

.05

.05 

.21 

.05 

.04 

.05

Chloride 

(Cl)

0.07 

.08 

.07 

.08 

.06

.06 

.05 

.04 

.08 

.05 

.07

.08 

.03 

.06 

.06 

.08

Fluoride 

(F)

0.02 

.02 

.02 

.00 

.00

.01 

.00 

.02 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Nitrate 

(NO,)

0.01 

.00 

.01 

.01 

.02

.02 

.02 

.01 

.02 

.02 

.02

.01 

.05 

.02 

.01 

.01

a Sum of determined constituents.
ROGUE RIVER BASIN Continued

ROGUE RIVER AT GRANTS PASS, OREG. Cont

Chemical analyses, water year October 1953 to September 19

Date 

of 

collection

Apr. 1-10, 1954

Apr. 21-30 ......

May 21-31 .......

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

July 11-20 .......

July 21-31 .......

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

Aug. 21-31.......

conf i i n

Sept. 21-30......

Total or 

weighted average

Runoff 

(acrefeet)

114, 500 

109,900 

96, 420 

76, 440 

73,840 

65, 020

56, 850 

65, 690 

44,210 

35,070 

30, 270 

30, 050

26, 000 

26,160 

32,970 

26, 680 

31,000 

26,820

3, 354, 000

Silica 

(Si02) 

ppm

25 

21 

20 

20 

22 

18

26 

28 

28 

31 

32 

33

34 

32 

33 

33 

32 

33

24

Equivalents per million

Calcium 

(Ca)

0.44 

.37 

.33 

.34 

.32 

.32

.34 

.38 

.34 

.34 

.34 

.36

.42 

.40 

.38 

.41 

.43 

.43

0.46

Magnesium 

(Mg)

0.24 

.21 

.21 

.16 

.17 

.16

.24 

.22 

.20 

.20 

.18 

.18

.23 

.16 

.21 

.23 

.24 

.24

0.22

Sodium 

(Na)

0.23 

.20 

.18 

.18 

.18 

.18

.18 

.19 

.19 

.21 

.21 

.21

.29 

.27 

.25 

.26 

.26 

.26

0.22

Potassium 

(K)

0.04 

.04 

.03 

.04 

.04 

.04

.07

.05 

.05 

.05 

.05 

.05 

.05

0.04

Bicarbonate 

(HCOj)

0.85 

.74 

.67 

.62 

.64 

.62

.74 

.75 

.70 

.74 

.72 

.72

.84 

.80 

.80 

.85 

.88 

.87

0.82

Sulfate 

(SOJ

0.04 

.02 

.03 

.04 

.04 

.04

.03 

.04 

.03 

.03 

.03 

.03

.05 

.04 

.03 

.03 

.03 

.03

0.05

Chloride 

(Cl)

0.05 

.05 

.04 

.05 

.04 

.05

.05 

.06 

.06 

.06 

.06 

.05

.07 

.06 

.06 

.07 

.07 

.08

0.06

Fluoride 

(F)

0.01 

.02 

.01 

.01 

.01 

.01

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.01 

.00 

.00 

.00

0.00

Nitrate 

(NO,)

0.01 

.01 

.01 

.01 

.01 

.01

.00 

.01 

.01 

.01 

.01 

.01

.02 

.02 

.01 

.00 

.01 

.00

0.01

a Sum of determined constituents.
INDEX

Page 

Agua Fria River below Lake Pleasant

Dam, Ariz ................ 157-158

Alamogordo Dam, N. Mex., Pecos

River below ............... 115-116

American River at Fair Oaks, Calif.. 177-179 

Arkansas City, Kans., Arkansas

River at .................. 57-59

Arkansas River at Arkansas City,

Kans...................... 57-59

at Ralston, Okla ............... 60-62

at Van Buren, Ark ............. 70-74

below John Martin Reservoir,

Colo...................... 54-56

Arkansas River basin .............. 54-80

Artesia, N. Mex., Pecos River near. 117-119 

Austin, Tex., Colorado River at .... 92-93

B

Bartlett Dam, Ariz., Verde River

below .................... 155-156

Bicarbonate ion hazard ............. 21

Bighorn, Mont., Bighorn River at ... 38-39

Bighorn River at Bighorn, Mont. .... 38-39

at Thermopolis, Wyo........... 37

Biggs, Oreg., Deschutes River near. 196

Billings, Mont., Yellowstone River at 31-32

Biola, Calif., San Joaquin River near 164-165

Blanco, N. Mex. , San Juan River near 140-141

Bluff, Utah, San Juan River near .... 142-144

Boise River at Notus, Idaho ........ 193-195

Boise River basin.................. 193-195

Boron hazard...................... 20

Boysen Dam, Wyo., Wind River

below..................... 35-36

Brady, Nebr., Platte River at ...... 46-47

Brazos River at Richmond, Tex ..... 90-91

Brazos River basin................. 90-91

Cambridge, Nebr., Republican River

at ........................ 52-53

Cameron, Ariz., Little Colorado

River at .................. 145

near Whitefieldi Okla .......... 75-80

Christiansen, J. E. ................ 21

Cimarron River at Perkins, Okla ... 63-69 

Cisco, Utah, Colorado River near ... 125-126 

Clarkston, Wash., Snake River near. 191-192 

Colorado River at Austin, Tex....... 92-93

at Lees Ferry, Ariz ........... 127-128

at Wharton, Tex ............... 94

below Hoover Dam, Ariz. -Nev... 131-132 

main stem .................... 122-132

near Cisco, Utah .............. 125-126

near Glenwood, Springs, Colo... 122-124 

near Grand Canyon, Ariz ....... 129-130

Colorado River basin (Part 8) ....... 92-94

Colorado River basin (Part 9) ..... 16,122-158

Columbia River at Grand Coulee

Dam, Wash ............... 182-184

at International Boundary ....... 180-181

at Mary hill Ferry near Rufus,

Oreg...................... 197-198

Columbia River main stem (Part 12) . 180-184 

Columbia River main stem (Part 14) . 197-198 

Comstock, Tex., Pecos River near .. 121

Denison, Tex., Red River near ..... 81

Deschutes River at Moody near Biggs,

Oreg...................... 196

Deschutes River basin ............. 196

Discussion of results .........

Diversions and return flows at and 

below Imperial Dam .....

Eagle Pass, Tex., Rio Grande at ... 

Eaton, F. M. .....................

Elephant Butte Outlet, N. Mex., Rio 

Grande below ...........

El Paso, Tex., Rio Grande near....

Evadale, Tex., Neches River at ... 

Explanation of tables ..............

Page 

9-19

133-134

113

21

108

109

84-85

8-9

Fair Oaks, Calif., American River at.. 177-179 

Feather River at Nicolaus, Calif....... 174-176

Gila River at Kelvin, Ariz ............ 148-149

below Gillespie Dam, Ariz ....... 150-152

Gila River basin ..................... 148-158

Gillespie Dam, Ariz., Gila River below. 150-152 

Glenwood Springs, Colo., Colorado

River near................... 122-124

Grand Canyon, Ariz., Colorado River

near ........................ 129-130

Grand Coulee Dam, Wash., Columbia

River at..................... 180-184

Grand Junction, Colo., Gunnison River

near ........................ 135-137

Grants Pass, Oreg., Rogue River at ... 201-202 

Green River, Utah, Green River at .... 138-139

Green River at Green River, Utah ..... 138-139

Green River basin.................... 138-139

Guadalupe River at Victoria, Tex. ..... 95-96

Guadalupe River basin ............... 95-96

Guernsey Reservoir, Wyo., North

Platte River below............ 44-45

Gunnison River near Grand Junction,

Colo ........................ 135-137

Gunnison River basin ................. 135-137

H

Headley, F. B........................ 20, 21

Heise, Idaho, Snake River near ....... 187-188

Hoover Dam, Ariz. -Nev., Colorado

River below ................. 131-132

Hudson Bay and upper Mississippi River

basins....................... 9, 23-24

Huffman, Tex., San Jacinto River near. 89 

Humboldt River near Rye Patch, Nev... 162-163 

Humboldt River basin................. 162-163

I

International Boundary, Columbia

River at....................

Irrigation - quality network stations...

John Martin Reservoir, Colo., Arkansas 

River below..................

Julesburg, Colo., South Platte River at.

180-181 

2-4

54-56 

50-51

Kansas River basin.................. 52-53

Kelvin, Ariz., Gila River at ......... 148-149

King Hill, Idaho, Snake River at 189-190

Kiona, Wash., Yakima River at ...... 185-186

203
204 INDEX

Page 

Knights Landing, Calif., Sacramento

River at ................... 171-173

Lake Pleasant Dam, Ariz., Agua Fria

River below ................ 157-158

Langtry, Tex., Rio Grande at ....... 112

Lees Ferry, Ariz., Colorado River at 127-128 

Little Colorado River at Cameron, Ariz. 145 

Little Colorado River basin .......... 145

Littlefield, Ariz., Virgin River at..... 146-147

Lobatos, Colo., Rio Grande near ...... 98-99

Locate, Mont., Powder River near .... 42-43

Lower Mississippi River basin ........ 14, 54-81

Lynndyl, Utah, Sevier River near ..... 159-161

M

Magistad, O. C. ..................... 21

Mathis, Tex., Nueces River near ..... 97

Maxwell, Nebr., Supply Canal

(Tri-county diversion) near ... 48-49

Miles City, Mont., Tongue River at ... 40-41

Missouri River at Nebraska City, Nebr. 29-30

at Pierre, S. Dak ............... 27-28

main stem ...................... 25-30

near Williston, N. Dak ........... 25-26

Missouri River basin ................ 25-53

Mokelumne River at Woodbridge, Calif. 169-170

N

Nebraska City, Nebr., Missouri River

at.......................... 29-30

Neches River at Evadale, Tex. ........ 84-85

Neches River basin .................. 84-85

Nicolaus, Calif., Feather River at..... 174-176

North Platte River below Guernsey

Reservoir, Wyo ............. 44-45

Notus, Idaho, Boise River at ......... 193-195

Nueces River near Mathis, Tex ....... 97

Nueces River basin .................. 97

Old Fort Quitman, Tex., Rio Grande 

below....... .............

Orla, Tex. , Pecos River near ......

Pacific slope basins in California 

Pacific slope basins in Oregon and

Lower Columbia River basin 18, 

Pacific slope basins in Washington

and Upper Columbia River

basin .................... 18,

Pecos River below Alamogordo Dam,

N. Mex ....................

below Red Bluff Dam near

Orla, Tex..................

near Artesia, N. Mex ...........

near Comstock, Tex ............

Percent sodium ....................

Perkins, Okla. , Cimarron River at... 

Pierre, S. Dak., Missouri River at .. 

Platte River at Brady, Nebr..........

Platte River basin ..................

Powder River near Locate, Mont .....

Ralston, Okla., Arkansas River at.... 

Red River at Denison Dam, near

Denison, Tex...............

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

Red River of the North basin .........

Reporting data .....................

Republican River above Medicine Creek

at Cambridge, Nebr.........

110

120

164-168 

196-202

180-184 

115-116

120 

117-119

121 

9

63-69 

27-28 

46-47 

44-51 

42-43

60-62

81 

81

23-24 

7-8

52-53

Page 

Residual sodium carbonate ........... 21

Richmond, Tex., Brazos River

at .......................... 90-91

Rio Grande above Culebra Creek near

Lobatos, Colo ............... 98-99

at Eagle Pass, Tex .............. 113

at Langtry, Tex ................. 112

at Otowi Bridge near San Ildefonso,

N. Mex ..............:...... 100-101

at Roma, Tex ............... 114

at Upper Presidio, Tex........... Ill

below Elephant Butte Outlet, N. Mex. 108 

below Old Fort Quitman, Tex ..... 110

Conveyance Channel at San Marcial,

N. Mex ..................... 106-107

Floodway at San Marcial, N. Mex.. 104-105 

near El Paso, Tex ............... 109

Tiffany Channel at San Marcial,

N. Mex. .................... 102-103

Rio Grande basin .................... 98-121

Rogue River at Grants Pass, Oreg..... 201-202

Rogue River basin ................... 201-202

Roma, Tex., Rio Grande at........... 114

Romayor, Tex., Trinity River at ..... 86-88

Rufus, Oreg., Columbia River near ... 197-198 

Ruliff, Tex., Sabine River near ....... 82-83

Rye Patch, Nev., Humboldt River near. 162-163

Sabine River near Ruliff, Tex ......... 82-83

Sabine River basin .................. 82-83

Sacramento River at Knights Landing,

Calif ....................... 171-173

Sacramento River basin .............. 171-179

Salem, Oreg., Willamette River at .... 199-200

Salinity hazard ...................... 20

Salt River at Stewart Mountain Dam,

Ariz........................ 153-154

San Ildefonso, N. Mex., Rio Grande

near........................ 100-101

San Jacinto River near Huffman, Tex .. 89 

San Jacinto River basin............... 89

San Joaquin River near Biola, Calif .... 164-165

near Vernalis, Calif.............. 166-168

San Joaquin River basin .............. 164-170

San Juan River near Blanco, N. Mex... 140-141 

near Bluff, Utah ................. 142-144

San Juan River basin ................. 140-144

San Marcial, N. Mex., Rio Grande

Conveyance at ............... 106-107

Rio Grande Floodway at .......... 104-105

Rio Grande Tiffany Channel at..... 102-103

Schedules for analyses of samples ..... 6, 7

Scofield, C. S. ...................... 20, 21

Sevier Lake basin.................... 159-161

Sevier River near Lynndyl, Utah ...... 159-161

Sheyenne River near Warwick, N. Dak . 23-24 

Sidney, Mont., Yellowstone River near. 33-34 

Snake River at King Hill, Idaho ....... 189-190

main stem ...................... 187-192

near Clarkston, Wash ............ 191-192

 near Heise, Idaho................ 187-188

Snake River basin ................. 18,187-195

Sodium-adsorption ratio (SAR) 9, 20 

South Platte River at Julesburg, Colo .. 50-51 

Stewart Mountain Dam, Ariz., Salt

River at .................... 153-154

Straus, Michael ..................... 21

Supply Canal (Tri-county diversion)

near Maxwell, Nebr.......... 48-49

The Great Basin ................. 17, 159-163

Thermopolis, Wyo., Bighorn River

at .......................... 37

Thorne, J. P. and Thorne, D. W. ..... 21

Tonque River at Miles City, Mont ..... 40-41

Trinity River at Romayor, Tex........ 86-88

Trinity River basin .................. 86-88
INDEX 205

U

Page

United States Salinity Laboratory Staff. 21 

Units for reporting data ............. 7-8

Upper Columbia River basin ......... 180-184

Upper Presidio, Tex., Rio Grande at . Ill

Van Buren, Ark., Arkansas River at.. 70-74

Verde River below Bartlett Dam, Ariz 155-156 

Vernalis, Calif., San Joaquin River

near....................... 166-168

Victoria, Tex., Guadalupe River at .. 95-96

Virgin River at Littlefield, Ariz...... 146-147

Virgin River basin .................. 146-147

W

Warwick, N. Dak., Sheyenne River

near...................... 23-24

Western Gulf of Mexico basins ...... 15, 82-121

Wharton, Tex., Colorado River at... 94

Whitefield, Okla., Canadian River

near......................

Wilcox, L. V. .....................

Willamette River at Salem, Oreg ....

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

Williston, N. Dak., Missouri

River near ................

Wind River below Boysen Dam, Wyo . Woodbridge, Calif., Mokelumne

River at ..................

Yakima River at Kiona, Wash .......

Yakima River basin .............

Yellowstone River at Billings, Mont.. 

near Sidney, Morit...............

Yellowstone River basin ............

Yuma, Ariz., Yuma Main Canal at... 

Yuma Main Canal below Colorado

River siphon at Yuma, Ariz.

75-80 

21

199-200 

199-200

25-26 

35-36

169-170

185-186

185-186

31-32

33-34

31-43 

133-134

133-134

U. S. GOVERNMENT PRINTING OFFICE : 1958 O - 461638