Quality of Surface 

Waters for Irrigation 

Western States 

1962

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1946

Quality of Surface 

Waters for Irrigation 

Western States 

1962

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

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1946

 JNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1966
UNITED STATES DEPARTMENT OF THE INTERIOR 

STEWART L. UDALL, Secretary

GEOLOGICAL SURVEY 

William T. Pecora, Director

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

Washington, D.C., 20402 -
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 L. B. Leopold, 

chief hydrologist, and S. K. Love, chief, Quality of Water Branch. 

The data were collected under the supervision of the following:

Eugene Brown, district chemist ............Sacramento, Calif.

D. M. Culbertson, district engineer....:....... Lincoln, Nebr.

C. H. Hembree, district geologist.................. Austin, Tex.

J. H. Hubble, district chemist.................Little Rock, Ark.

L. B. Laird, district chemist....................Portland, Oreg.

R. H. Langford, district chemist .........Salt Lake City, Utah

R. P. Orth, district chemist............. Oklahoma City, Okla.

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

Ill

CONTENTS

Page

Introduction................. . . ...... ...... 0 ... . . .. 1

Acknowledgments. ........ .......... ....... .......... 6

Collection of samples..................... ......... 6

Examination of samples............................. 7

Reporting of data......... ...»..................... 8

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

Criteria of water quality.......................... 10

Discussion of results.............................. 16

Hudson Bay and upper Mississippi River basins.... 16

Missouri River basin............................. 16

Lower Mississippi River basin.................... 18

Western Gulf of Mexico basins.................... 19

Colorado River basin............................. 19

The Great Basin....................,............. 20

Pacific slope basins in California............... 21

Pacific slope basins in Washington and upper

Columbia River basin........................... 21

Snake River basin................................ 24

Pacific slope basins in Oregon and lower Columbia

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

Selected references................................ 24

Quality of surface waters for irrigation........... 26

Part 5. Hudson Bay and upper Mississippi River

basins...........,.......... .............. 26

Red River of the North basin................... 26

Sheyenne River near Warwick, N. Dak.......... 26

Souris (Mouse) River near Westhope, N. Dak... 27

Part 6. Missouri River basin..................... 28

Missouri River main stem....................... 28

Missouri River near Williston, N. Dak........ 28

Missouri River at Nebraska City, Nebr........ 30

Yellowstone River basin........................ 32

Yellowstone River near Sidney, Mont.......... 32

Bighorn River at Bighorn, Mont............... 34

Tongue River at Miles City, Mont............. 36

Powder River near Locate, Mont............... 38

James River basin .............................. 40

James River at Huron, S. Dak................. 40

Platte River basin............................. 42

Platte River at Brady, Nebr.................. 42

Supply Canal (Tri-county diversion) near

Maxwel 1, Nebr............................... 43

South Platte River at Julesburg, Colo........ 44
VI CONTENTS

Quality of surface waters for irrigation 

Continued Page 

Part 7. Lower Mississippi River basin.......... 45

Arkansas River basin......................... 45

Arkansas River below John Martin Reservoir,

Colo..................................... 45

Arkansas River at Arkansas City, Kans...... 47

Arkansas River at Ralston, Okla............ 50

Arkansas River at Van Buren, Ark........... 53

Cimarron River at Perkins, Okla............ 54

Canadian River near Whitefield, Okla....... 58

Red River basin.............................. 61

Red River at Denison Dam, near Denison,

Tex...................................... 61

Part 8. Western Gulf of Mexico basins.......... 62

Sabine River basin........................... 62

Sabine River near Ruliff, Tex.............. 62

Neches River basin........................... 64

Neches River at Evadale, Tex............... 64

Trinity River basin.......................... 66

Trinity River at Romayor, Tex.............. 66

Brazos River basin........................... 68

Brazos River at Richmond, Tex.............. 68

Colorado River basin......................... 70

Colorado River at Austin, Tex.............. 70

Colorado River at Wharton, Tex............. 71

Guadalupe River basin........................ 72

Guadalupe River at Victoria, Tex........... 72

Nueces River basin........................... 74

Nueces River near Mathis, Tex.............. 74

Rio Grande basin............................. 75

Rio Grande above Culebra Creek, near

Lobatos, Colo............................ 75

Rio Grande at Otowi Bridge, near San

Ildefonso, N. Mex........................ 78

Rio Grande conveyance channel at San

Marcial, N. Mex.......................... 80

Rio Grande floodway at San Marcial, N. Mex. 82 

Rio Grande below Elephant Butte Dam,

N. Mex................................... 83

Rio Grande near El Paso, Tex............... 84

Rio Grande below Old Fort Quitman, Tex..... 85

Rio Grande at Upper Presidio, Tex.......... 86

Rio Grande at Langtry, Tex................. 87

Rio Grande at Laredo, Tex.................. 88

Rio Grande at Falcon Dam-U.S. tailrace..... 89

Pecos River below Alamogordo Dam, N. Mex... 90 

Pecos River near Artesia, N. Mex........... 91

Pecos River below Red Bluff Dam, near

Orla, Tex................................ 94

Pecos River near Shumla, Tex..;............ 95

Part 9. Colorado River basin................... 96

Colorado River main stem..................... 96

Colorado River near Glenwood Springs, Colo. 96 

Colprado River near Cisco, Utah............ 97
CONTENTS VII

Quality of surface water for irrigation 

Continued 

Colorado River basin Continued

Colorado River main stem Continued Page

Colorado River at Lees Ferry, Ariz......... 99

Colorado River near Grand Canyon, Ariz..... 101

Colorado River below Hoover Dam, Ariz -Nev. 103 

Diversions and return flows at and below

Imperial Dam.... ........................ 104

Yuma Main Canal below Colorado River

siphon, at Yuma, Ariz.................... 104

Gunnison River basin......................... 105

Gunnison River near Grand Junction, Colo... 105

Green River basin ............................ 106

Green River near Greendale, Utah........... 106

Green River at Green River, Utah........... 108

San Juan River basin......................... 109

San Juan River near Archuleta, N. Mex...... 109

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

Virgin River basin........................... 113

Virgin River at Littlefield, Ariz.......... 113

Gila River basin............................. 115

Gila River at Kelvin, Ariz................. 115

Gila River below Gillespie Dam, Ariz....... 117

Salt River below Stewart Mountain Dam,

Ariz..................................... 119

Verde River below Bartlett Dam, Ariz....... 120

Part 10. The Great Basin....................... 121

Sevier Lake basin ............................ 121

Sevier River below Piute Dam, near Marysvale, Utah............................... 121

Sevier River near Lynndyl, Utah,........... 123

Humboldt River basin......................... 124

Humboldt River at Palisade, Nev............ 124

Humboldt River near Rye Patch, Nev... ....... 125

Part 11. Pacific slope basins in California.... 126

San Joaquin River basin...................... 126

San Joaquin River near Vernalis, Calif..... 126

Sacramento River basin....................... 128

Feather River at Nicolaus, Calif........... 128

American River at Fair Oaks, Calif......... 130

Part 12. Pacific slope basins in Washington

and upper Columbia River basin........... 131

Columbia River main stem..................... 131

Columbia River at Northport, Wash.......... 131

Yakima River basin........................... 132

Yakima River at Kiona, Wash................ 132

Part 13. Snake River basin..................... 134

Snake River main stem........................ 134

Snake River near Heise, Idaho.............. 134

Snake River at King Hill, Idaho............ 136

Boise River basin............................ 137

Boise River at Notus, Idaho................ 137
VIII CONTENTS

Quality of surface water for irrigation 

Continued , Page 

Part 14. Pacific slope basins in Oregon and

lower Columbia River basin............... 139

Columbia River main stem..................... 139

Columbia River near The Dalles, Oreg....... 139

Willamette River basin....................... 140

Willamette River at Salem, Oreg............ 140

Index....o.....o......o.......................... 141

ILLUSTRATION

Page

Plate 1. Stations for irrigation-quality

network in Western United States.... In pocket

Figure 1. Nomogram for determining the SAR value 

of irrigation water and for estimating 

the corresponding ESP value of a soil 

that is at equilibrium with the water.... 12

Figure 2. Diagram for classification of irrigation waters.............................. 14
QUALITY OF SURFACE WATERS

FOR IRRIGATION, 

WESTERN STATES, 1962

INTRODUCTION

The records of chemical analyses, other physical measurements, and discharge given in this report comprise the twelfth annual compilation of data for 73 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 of this problem the Subcommittee on Hydrology, 

Interagency Committee on Water Resources (formerly the Federal 

Interagency River Basin Committee) on February 6, 1950, approved 

a list of 106 network stations on streams in the western conterminous United States at which water samples were to be collected 

and analyzed with particular reference to the use of these streams 

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).

1
z QUALITY FOR IRRIGATION. l')W

Irrigation-Quality Network Stations, Western States 

[Selected by Subcommittee on Hydrology, Interagency Committee on Water Resources, 1950]

Irrigation 

network 

no.

1

2 

3 

4 

5 

6 

7

8 

9 

10 

11 

12 

13 

14 

15 

16 

17

18 

18a

19 

20

21 

22 

23

24

25 

26 

27 

28

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43

Geological 

Survey 

station 

ident. 

no.

5-1240 

6-3300 

-4400 

-8070 

-2145 

-3295 

-2595 

-2590 

-2947 

-3085 

-3265 

-3580 

-3610 

-4395 

-4520 

-4760 

-6420 

-6560

-7660 

-7657

-7640

-8535 

-8655 

-8680 

-8695 

7-1305

-1465 

-1525 

-2505 

-1640 

-1610

-2450 

-3316 

-3280 

8- 305 

- 410 

- 665

-1140

-1580 

-1620 

-1765 

-2110 

-2492

Stream and location

Souris River (Mouse) near Westhope, N. Dak____

North Platte River below Guernsey Reservoir, 

Wyo.

Supply Canal (Tri-County Diversion) near 

Muxwell, Nebr.

Republican River above Medicine Creek at 

Cambridge, Nebr.

Arkansas River below John Martin Reservoir, 

Colo.

Colorado River at Wharton, Tex --------------

Rio Grande above Culebra Creek, near 

Labatos, Colo.

Date 

established

June 1954 

12- 5-50

10- 3-50 

1- 4-51

12-15-50 

1- 3-51

1- 1-51 

11-24-53 

10- 2-50

1- 4-51

1- 4-51

1-17-51

1-17-51

Aug. 1956

12- 7-50

2-28-51 

3- 1-51

10- 1-45

12-22-50 

Aug. 1956

4- 3-50 

1-10-51

10- 8-51

1- 1-50 

10- 1-45

10- 1-49 

10- 1-52

6- 2-48 

9- 1-46

5- 1-44

9-10-46 

10- 1-47

10- 1-47

9- 1-45

9- 1-45 

9- 1-45

10- 1-47 

10- 1-47 

4-11-44 

9- 1-45

10- 1-47 

10-11-46

Date 

discontinued

9-30-58

9-30-58

1-21-54 

9-30-54

11-20-53

11-20-53

9-30-58

9-30-58 

Sept. 1957

10- 3-52 

9-30-53

9-30-52

9-30-53

10- 3-52

4- 5-54

9-30-51

-----------
INTRODUCTION

Irrigation-Quality Network Stations, Western States Continued

Irrigation 

network 

no.

44

45

46

47

48

49

50

51

52

53

54

55

56

57

CO

59

60

C 1

C 9

63

65

66

67

C D

69 

70

71

72

79

74

7R

76 

77

*7 D

79

0 A

0 1

o o

Geological 

Survey 

station 

ident. 

no.

8-3130

-3585

-3583

-3584

-3705

-^71 ^

-3775

-4590

-4613

-3845

-3965

-4101

-4474

9- 711

-1805

-3800

-4025

-4215

-4280

- ^9^^

- 1525

- 99=^

_ 2345

-3150

-3565

- ^R^R

- 97QR

-4012 

-4740

- 5195

-5020

-5100

-5136 

10-1180

-1915 

-2240

- S99^

-3350 

11-2510

-2540

- 3035

Stream and location

N. Mex. 

Rio Grande at San Marcial, N. Mex____ ________

N. Mex.

Orla, Tex.

Colorado River Siphon, at Yuma, Ariz.

Little Colorado River at Cameron, Ariz _______

Agua Fria River below Lake Pleasant Dam, 

Ariz.

Sevier River below Piute Dam, near Marysvale, 

Utah.

Humboldt River near Rye Patch, Nevc _ ________

Date

established

10-23-47

7- 1-48

Oct. 1954

Oct. 1954

1933

1930

1930

1935

1945

1938

7- 1-55

1944

July 1955

July 1955

6-26-37

7- 1-37

7- 1-37

1935

1- 1-55

Oct. 1941

Oct. 1928

10- 1-47

Oct. 1925

Oct. 1942

Oct. 1931

Oct. 1956

Oct. 1928

10- 1-45

12-31-54

Oct. 1929

1-17-51 

12- 1-50

12- 1-50

12- 9-50

12- 9-50

12- 1-50

Mar. 1958 

3-22-51

May 1962

12-10-51

3- 1-51

Date 

discontinued

Oct. 1954

1-30-55

1-31-55

9-30-56

Dec. 1954

12-31-54

9-30-58

9-30-58

-----------

___________

See footnotes at end of table.
QUALITY FOR IRRIGATION, 1962

Irrigation-Quality Network Stations, Western States Continued

Irrigation 

network 

no.

83 

84

85

Qfi

87 

88

89

90

91 

92

no

94

95

96

97

98

99

100 

101

i no

103 

104

105

106

107

108

109

Geological 

Survey 

station 

ident. 

no.

11-3105 

-2535

-3255

-3780

-3910 

-4250

-4465

12-3995 

-3995

-4365 

-3220

- 3985

-5105

13- 375

- 815

- 1545

-2690

-3435

-2125

14-1057

-3010 

-1910

-3615

5- 560

6-6875

-8055

9-4150

Stream or location

San Joaquin River at Antioch, Calif ___________ 

Calaveras River (Stockton diverting canal) at 

Stockton, Calif.

Sacramento River at Knights Landing, Calif ___

Columbia River at international boundary _____

Columbia River at Grand Coulee Dam, Wash...

Wash. 

Boise River near Arrowrock, Idaho___________

Deschutes River at Moody, near Biggs, Oreg __

North Platte River at Lewellen Nebr^

Date 

established

3- 1-51 

1952

3- 1-51

2-26-51 

2-26-51

5- 1-51

11-15-51 

10- 1-57

11-25-50

12-30-52

1- 8-53

3-27-51

11-14-51

9-28-55

11-21-50

12- 1-50

Dec. 1952 

2- 1-51

1- 5-53

1- 8-51

July 1949

Date 

discontinued

10- 3-52 

Oct. 1960

9-30-58d

May 1958 

9-30-62d

9-30-62

9-30-57

9-30-58

Feb. 1956

9-30-58

-----------

2-15-54

9-30-58

aOperated by International Boundary and Water Commission. 

"Dropped from list, replaced by Green River near Greendale, Utah. 

cOperation suspended October 1958 to September 1959, reactivated May 1962. 

^Discontinued as irrigation station, changed from daily to monthly sampling. 

eStations added by Subcommittee, October 1952.
INTRODUCTION 5

It was contemplated that the network stations would be located 

at streamflow 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 

of stream 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.

1. 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 streamflow gaging 

stations. The most nearly up-to-date list of gaging statio'ns 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 water-supply 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 109 network stations on streams in the 

Western States. The 73 stations in operation in 1962 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.

To facilitate identification, each Geological Survey gaging station and sampling station has been assigned a station number. 

The station numbers were assigned according to Geological Survey practice in reporting records of streamflow: Stations on tributary streams are listed between stations on the main stem in the 

order in which those tributaries enter the main stem. However, 

in this report the numbers will not all appear in increasing numerical order because all the main stem stations on a river are 

reported before listing the stations on the tributaries.
6 QUALITY FOR IRRIGATION, 1962

The complete number for each station has eight digits, but the 

station number as shown in this report just to the left of the station name consists of only the digits essential for identification. 

For example, for a station with the complete number 08-0100.00, 

this station number shown in this report is 8-100.

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. Army; the State engineers for each of 

the 19 Western States; and the Ministry of Hydraulic Resources 

of Mexico.

During 1961 62, 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, Langtry, Falcon Dam 

U.S. tailrace and it operated the station Pecos River near Shumla, 

also. The Mexican Section operated the stream gaging station on 

the main stem at Laredo. Each section operated the gaging stations on the 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 31 and 32 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 1961 and 1962. Analyses for seven 

Rio Grande main stem stations and for the Pecos River near 

Shumla, 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 is acknowledged with appreciation.

COLLECTION OF SAMPLES

In accordance with the recommendation of the Subcommittee, 

where practicable, one sample was collected each day throughout 

the water year. In general, each sample was taken in an 8- or 12- 

ounce glass bottle provided with a pressure-type or positive-seal 

closure to prevent escape of dissolved gases. Each sample was 

integrated in the vertical section of a stream usually at about
EXAMINATION OF SAMPLES '

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 (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.
8 QUALITY FOR IRRIGATION, 1962

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.

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.

EXPLANATION OF TABLES

The tables of analyses beginning on page 26 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.
EXPLANATION OF TABLES »

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 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, percent sodium, and sodiumadsorption-ratio, 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 and sodium-adsorption-ratio were obtained from 

composite-samples 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 Water Resources district 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 1.983471.

Analytical values are reported in equivalents per million (epm) 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 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:

 x where all constituents are reported in equivalents Na+K+Ca+Mg

per million.

792-031 O-65 2
10 QUALITY FOR IRRIGATION, 1962

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

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

on page 11.

A program for automatically converting and computing the analytical values which are given in this report was established in 

1962. Electronic digital computers perform the following calculations: Converting discharge values from cubic feet per second 

to acre-feet and constituent values from parts per million to 

equivalents per million; computing tons per acre-foot and total 

tons of the dissolved solids, percent sodium, sodium-adsorptionratio, total discharge in acre-feet, total tons of dissolved solids, 

and discharge-weighted average of the individual constituents.

CRITERIA OF WATER QUALITY

The quality of an irrigation water is determined by the composition and concentration of the dissolved substances or solutes 

that are present in the water. The principal solutes are the 

cations; calcium, magnesium, and sodium, and the anions; bicarbonate, sulfate, and chloride. Boron, fluoride, and nitrate are usually present in low, but significant, concentrations. Small 

amounts of carbonate are found in many waters, as well as trace 

amounts of other less important constituents. The concentrations 

of the several ions show wide variations but, because of solubility 

limitations, sodium and chloride often predominate in more saline 

waters.

The analysis of an irrigation water should provide information 

on the suitability of its use and act as a guide for management 

practices. The first step in the interpretation of the analysis is 

the selection of criteria that will yield the type of information desired. The second step is the classification of the criteria in 

order to evaluate the water quality.

There are four principal hazards related to the chemical character of water for irrigation use. These are: total concentration, 

sodium, bicarbonate, and boron or other phytotoxic substances. 

Criteria that measure these hazards have been worked out and 

are in general use.

Total concentration is probably the more important single criterion 

for irrigation water quality and may be expressed in terms of 

parts per million (ppm) of dissolved solids, or as specific conductance (micromhos at 25°C). The latter is preferred. More 

than half of the irrigation waters in use in the Western States have 

specific conductance values below 750 micromhos (about 500 ppm
CRITERIA OF WATER QUALITY 11

dissolved solids). Saline waters with specific conductance values 

greater than 2,250 micromhos (about 1,500 ppm dissolved solids) 

make up less than 10 percent of the total number of waters and an 

even smaller fraction of the total quantity of water being used. 

There are very few waters with specific conductance values 

greater than 5,000 micromhos (about 3,200 ppm dissolved solids) 

that are being used successfully, although they can be used for 

certain crops under very special conditions. Such waters are 

important, however, in that they constitute the only available supply in many arid regions.

Sodium is essentially unique among the cations in its effect upon 

the soil. When present in the soil in exchangeable form, even at 

low concentrations as compared with the other cations, it causes 

adverse chemical and physical conditions to develop. Exchangeable sodium tends to make a moist soil impermeable to air and 

water. This type of soil, upon drying, is hard and difficult to till, 

and forms dense crusts that interfere with germination and seedling emergence. The most reliable index of the sodium hazard, 

or the tendence of the irrigation water to form exchangeable sodium in the soil, is the sodium-adsorption-ratio, SAR (U.S. Salinity Laboratory Staff, 1954). It is a calculated value and is defined as:

SAR =

Ca++ + Mg++ 

2

where concentrations are expressed in equivalents per million.

A nomogram for determining the SAR value of an irrigation 

water with an exchangeable-sodium percentage (ESP) scale opposite the SAR scale is shown in figure 1 on page 12. The ESP 

scale is empirical but is based on a regression equation of high 

statistical significance. After the SAR value of an irrigation 

water is determined by use of the nomogram, it is possible to 

estimate from the central scale the ESP value of a soil that is at 

equilibrium with the irrigation water. Under field conditions, the 

actual ESP may be slightly higher than the estimated equilibrium 

value. This is because the total salt concentration of the soil 

solution is increased by evaporation and plant transpiration which 

results in a higher SAR and a correspondingly higher ESP.

Bicarbonate is important primarily in its relation to calcium and 

magnesium. There is a tendency for calcium to react with the 

bicarbonate and precipitate as calcium carbonate (CaCOg). The 

corresponding magnesium salt is more soluble so there is less 

tendency for it to precipitate but it may be lost from a water by 

an indirect reaction. Magnesium enters the exchange complex of
12 QUALITY FOR IRRIGATION, 1962

5 

Figure 1. Nomogram for determining the SAR value of irrigation water and for estimating the 

corresponding ESP value of a soil that is at equilibrium with the water (U. S. Salinity Laboratory Staff, 1954).
CRITERIA OF WATER QUALITY 13

the soil, replacing calcium which reacts with bicarbonate and 

precipitates as CaCOs. Ordinarily, magnesium will not replace 

calcium to any great extent but, if calcium is precipitated as it 

is released, the reaction proceeds toward completion.

As calcium and magnesium are lost from water, the relative 

proportion of sodium is increased with an attendant increase in 

the sodium hazard. This hazard can be evaluated in terms of the 

residual sodium carbonate (RSC) as proposed by Eaton (1950) and 

defined as

RSC = (CO 3 ~~ + HCO3 ") - (Ca++ + Mg++)

in which the concentrations are expressed in equivalents per 

million (epm). Studies by Wilcox et al. (1954) indicate that waters 

with more than 2.5 epm of RSC are probably not suitable for irrigation purposes. Water containing 1.25 epm to 2.5 epm are 

marginal, and those containing less than 1.25 epm of RSC are 

probably safe. Some marginal waters, with good management 

practices and proper use of amendments, particularly gypsum, 

may be made safe for irrigation use. A condition not provided 

for by the RSC concept has been encountered in recent years. If 

the concentrations of both calcium and bicarbonate are about 

equal and high, i.e., in the order of 10 epm or greater, the RSC 

will be low or possibly zero. Such waters will precipitate some 

calcium carbonate and should be considered at least marginal.

Phytotoxic substances: Boron. The occurrence of boron in toxic 

concentrations in certain irrigation waters makes it necessary 

to consider this constituent when assessing the quality of water.

Plant species differ markedly in the their tolerance to high 

concentrations of boron. In areas where boron occurs in excess 

in the soil or in the irrigation water, boron-tolerant crops may 

grow satisfactorily, whereas sensitive crops may fail.

Other substances. Very few substances other than boron occur 

in toxic concentrations in natural waters. However, many substances in industrial wastes that are discharged into surface 

streams are probably toxic to plants. Wilcox (1959) assembled 

information on a number of such substances for which the phytotoxic properties are known. If the presence of pollutants is suspected, great care should be exercised in the use of the water 

for irrigation.

The quality of irrigation water is classified by the amount of 

critical material determined in a water analysis. A water analysis is classified by plotting, as coordinates, the numerical 

value for specific conductance and SAR on figure 2, p. 14. The 

position of the point determines the quality classification of the
14 QUALITY FOR IRRIGATION, 1962

100 3 45678 1000 3 4 5000

o 

O

30

28

26

24

20

18

16

14

12

10

8

6

4

2

h- C1-S4

C1-S3

C1-S2

C1-S1

T I I TTT 1 1

C2-S4

C2-S3

C2-S2

C2-S1

I I I I I

C3-S4

C3-S3

C3-S2

C3-S1

I I I

I I

C4-S4 -

C4-S3 _

C4-S2

100 250 750 2250

CONDUCTIVITY-MICROMHOS/CM (ECxlO6) AT 25°C

LOW MEDIUM

3

HIGH VERY HIGH

SALINITY HAZARD

Figure 2. Diagram for the classification of irrigation waters (U.S. Salinity Laboratory Staff, 1954).
CRITERIA OF WATER QUALITY 15

water. The significance and interpretation of these quality ratings 

are summarized below.

Salinity Classification:

Cl. Low-salinity water can be used for irrigation with most 

crops on most soils, with little likelihood that a salinity problem 

will develop. Some leaching is required, but this occurs under 

normal irrigation practices except in soils of extremely low permeability.

C2. Medium-salinity water can be used if a moderate amount 

of leaching occurs. Plants with moderate salt tolerance can be 

grown in most instances without special practices for salinity 

control.

C3. High-salinity water cannot be used on soil with restricted 

drainage. Even with adequate drainage, special management for 

salinity control may be required, and plants with good salt tolerance should be selected.

C4. Very high-salinity water is not suitable for irrigation 

under ordinary conditions but may be used occasionally under 

very special circumstances. The soil must be permeable, drainage must be adequate, irrigation water must be applied in excess 

to provide considerable leaching, and very salt-tolerant crops 

should be selected.

Sodium Classification:

51. Low-sodium water can be used for irrigation on almost all 

soils, with little danger of the development of a sodium problem. 

However, sodium-sensitive crops, such as stone-fruit trees and 

avocados, may accumulate injurious amounts of sodium in the 

leaves.

52. Medium-sodium water may present a moderate &odium 

problem in fine-textured (clay) soils unless there is gypsum in 

the soil. This water can be used on coarse-textured (sandy) or 

organic soils that take water well.

53. High-sodium water may produce troublesome sodium 

problems in most soils and will require special management 

good drainage, high leaching, and additions of organic matter. If 

there is plenty of gypsum in the soil, a serious problem may not 

develop for some time. If gypsum is not present, it or some similar material may have to be added.

54. Very-high sodium water is generally unsatisfactory for irrigation except at low- or medium-salinity levels where the use
16 QUALITY FOR IRRIGATION, 1962

of gypsum or some other amendment makes it possible to use 

such water. (Wilcox and Durum, 1965.)

DISCUSSION OF RESULTS

HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

Red River of the North basin. During the 1962 water year, runoff in 

the Red River of the North basin was much higher than the longterm average. Gaging stations on the main stem reported increases of 2 to 3 times the long-term averages. The runoff was 

about 3 percent of the 32-year average for Sour is River near 

Westhope, N. Dak., and about 56 percent of the 13-year average 

for Sheyenne River near Warwick, N. Dak. For the Souris River 

near Westhope, N. Dak., the weighted average of dissolved solids 

was 921 ppm for 1962 as compared with the 8-year average of 

456 ppm; the dissolved-solids content was the lowest on record. 

For the Sheyenne River near Warwick, N. Dak., the weighted average of dissolved solids was 389 ppm as compared with the 12-year 

average of 399 ppm.

MISSOURI RIVER BASIN

Missouri River main stem. Drought conditions that prevailed in the 

Missouri River basin upstream from Williston, N. Dak., in 1961 

were eased by precipitation, which averaged about 2.5 inches 

above normal in central and eastern Montana. Damaging floods 

occurred on several minor tributaries. There was no new construction during the year.

The following dams regulate the Missouri River: Canyon Ferry 

and Fort Peck upstream from Williston, N. Dak.; Garrison, Oahe, 

Fort Randall, and Gavins Point (Lewis and Clark) between Williston, N. Dak., and Nebraska City, Nebr. Main-stem reservoirs 

had a total of 38,512,000 acre-feet on Sept. 30, 1962, an increase 

of 13,397,000 acre-feet from Sept. 30, 1961. At Williston, N. Dak., 

runoff during 1962 was about 67 percent, greater than runoff dur1961 and about 7 percent greater than the 19-year average after 

operational level was reached at Fort Peck Reservoir. The 

weighted average of dissolved solids was 434 ppm compared with 

the average of 418 ppm for 1951 62. At Nebraska City, Nebr., 

runoff during 1962 was 16 percent greater than runoff during 1961 

and about 3 percent less than the 33-year average. The weighted 

average of dissolved solids was 394 ppm as compared with 425 

ppm for the period 1951 62.

Yellow stone River basin. Runoff from the basin was 113 percent 

of the long-term average as compared with 46 percent for 1961.
DISCUSSION OF RESULTS 17

Runoff of Powder River near Locate, Mont., was 178 percent of the 

24-year average and was third highest on record.

The chemical constituents in the water did not vary significantly 

in proportion to the dissolved-solids content. In all tributaries 

sampled, except the Powder River, the dissolved-solids content 

was below average. The concentration in the Powder River was 

307 percent of the 12-year average, and the annual dissolvedsolids load was 248 percent of the previous maximum annual load. 

As in other years the Bighorn River was the major contributor to 

the dissolved-solids load.

Major reservoirs in operation in the Yellowstone River basin 

are Buffalo Bill Reservoir on the Shoshone River; Bull Lake, 

Pilot Butte, and Boysen Reservoirs on the Wind River; and Tongue 

River Reservoir in Montana. Yellowtail Dam is under construction on the Bighorn River. No significant changes in impoundment 

or diversions were made during the year. There were no variations in methodology from that proposed for irrigation network 

stations.

James River basin. During the first 6 months of the 1962 water 

year, no flow was reported at most gaging stations in the James 

River basin. Runoff from record snow fall resulted in early 

spring flooding. Maximum stage for the 1962 flood exceeded that 

for the 1960 flood by about a foot. Rains in May again caused 

flood stages in the James River basin. Summer rains kept runoff 

above normal.

At the gaging station at Huron, S. Dak., the highest stage since 

1922 was on Apr. 2, 1962, and runoff was over 5 times that for 

1961 and almost 3 times the 23-year average. The weighted average of dissolved solids for 1962 was 375 ppm as compared with 

the 6-year average of 403 ppm and was 228,700 tons (highest on 

record) as compared with 7,920 tons for 1961. Although the samples for chemical analysis were collected upstream from the gage 

and upstream from the diversion of water to the city of Huron, the 

weighted average reflects only the quality of the water passing 

the gage.

Platte River basin. Runoff from the North Platte River basin 

downstream from Guernsey, Wyo., was 71 percent of the 60-year 

average and 13 percent greater than runoff during 1961. No data 

are available for the chemical quality of the water in the Platte 

River basin in Wyoming, and no changes were made in impoundments or diversions in 1962. Precipitation and runoff varied considerably in the Platte River basin in Nebraska during the 1962 

water year.
18 QUALITY FOR IRRIGATION, 1962

At South Platte River at Julesburg, Colo., runoff was 88 percent 

greater than that during 1961 and 83 percent greater than the 60- 

year average; the weighted average of dissolved solids for 1962 

was 1,280 ppm as compared with the 12-year average of 1,220 

ppm. At Platte River at Brady, Nebr., runoff was 20 percent less 

than that in 1961; the weighted average of dissolved solids for 

1962 was 512 ppm as compared with 481 ppm for the 12-year 

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

Nebr., the runoff was 13 percent greater than it was in previous 

years; the weighted average of dissolved solids for 1962 was 742 

ppm as compared with the 12-year average of 572 ppm.

LOWER MISSISSIPPI RIVER BASIN

Arkansas River basin. Runoff at Arkansas River below John Martin 

Reservoir, Colo., increased 29 percent over the preceding year, 

but was still 34 percent below the average discharge of 24 years 

of record.

Runoff at stations on the Arkansas River at Arkansas City, Kans., 

and on the Canadian River near Whitefield, Okla., was greater in 

1962 than in 1961. Runoff at stations on the Arkansas River at 

Ralston, Okla., and on the Cimarron River at Per kins, Okla., was 

less in 1962 than in 1961. In 1962, runoff at the station on the 

Canadian River near Whitefield was about 24 percent less than the 

long-term average. At other stations, runoff exceeded the longterm average as follows: Arkansas River at Arkansas City, 57 

percent; Arkansas River at Ralston, 46 percent; and Cimarron 

River at Perkins, 4 percent.

The greater runoff in 1962 of the Arkansas River at Arkansas 

City resulted in a lower dissolved-solids content. The weighted 

average dissolved-solids content of the water was 621 ppm in 

196land 619 ppm in 1962. Runoff was about 16 percent greater in 

1962. At the Ralston station, the weighted average dissolvedsolids content was 530 ppm in 1961 and 619 ppm in 1962. Runoff 

was about 9 percent less in 1962 than in 1961.

The lower runoff in 1962 of the Cimarron River at Perkins resulted in a higher dissolved-solids content. Weighted averages 

were 2,320 ppm in 1961 and 2,410 ppm in 1962. Runoff was about 

7 percent less in 1962 than in 1961. Higher runoff of the Canadian 

River near Whitefield resulted in a lower dissolved-solids content. Weighted averages were 451 ppm in 1961 and 416 ppm in 

1962. Runoff was about 7 percent greater in 1962 than in 1961.

At all stations, weighted averages of percent sodium and sodium-adsorption-ratio were about the same in 1962 as in 1961.
DISCUSSION OF RESULTS 19

Red River basin. Water discharge of the Red River at Denison 

Dam near Dension, Tex., during the 1962 water year was 87 percent of the average discharge for the 39 years of record. The 

weighted average of dissolved-solids content was 1.56 tons per 

acre-foot, second only to the 1.60 tons per acre-foot in 1961, which 

was the highest since chemical-quality records began in 1944.

WESTERN GULF OF MEXICO BASINS

In the Western Gulf of Mexico basins from the Sabine River to 

the Nueces River, streamflow was generally below normal. In all 

the basins, the weighted average of dissolved-solids content in 

1962 was greater than in 1961. Streamflow of the Neches River at 

Evadale, Tex., in 1962 was less than half the 1961 streamflow, and 

the weighted-average of dissolved-solids content increased from 

0.10 tons per acre-foot in 1961 to 0.14 tons per acre-foot in 1962. 

Streamflow of the Brazos River at Richmond, Tex., was less than 

30 percent of the 1961 streamflow, and the weighted average of 

dissolved-solids content increased from 0.42 to 0.75 tons per 

acre-foot.

Rio Grande basin. In the 1962 water year, streamflow of the Pecos 

River below Red Bluff Dam near Orla, Tex., was less than 30 percent of the 25-year average and less than half the 1961 streamflow. The weighted average of dissolved-solids content increased 

from 8.53 tons per acre-foot in 1961 to 12.5 tons per acre-foot in 

1962. Storage in Red Bluff Reservoir at the end of the 1962 water 

year was 30,300 acre-feet, only 10 percent of capacity.

COLORADO RIVER BASIN

Colorado River main stem. Runoff of Colorado River at Glenwood 

Springs, Colo., was about twice that of the preceding year. Flow 

was also about 20 percent greater than the average for 63 years 

of record.

The flow of Colorado River near Cisco, Utah increased to more 

than double that of the preceding year. The flow at this station 

was 16 percent higher than that of the average for 51 years of 

record.

Discharge of Colorado River below Hoover Dam, Ariz.-Nev., is 

controlled by release from Lake Mead since February 1, 19.35. 

The usable contents of Lake Mead increased by 33 percent during 

the water year, and the dissolved-solids content of water released 

was slightly higher than in 1961 water year. A steady increase in 

the mineralization of water released from Hoover Dam has been 

observed for the past few years. For example, in 1959 water year
20 QUALITY FOR IRRIGATION, 1962

the average concentration was 0.85 tons per acre-foot; in 1962 

water year it is 0.99 tons per acre-foot.

Gwwison River basin. Flow of the Gunnison River near Grand 

Junction, Colo., increased to better than double what it had been 

the previous year. The flow at this station was about 15 percent 

higher in 1962 than the average for 54 years of record.

Green River basin. Discharge of the Green River near Greendale, 

Utah was about 3 times higher in 1962 than in 1961. The flow in 

1962 was 38 percent higher than the average for the last 12 years.

The flow of the Green River at Green River, Utah increased to 

almost three times that of the previous year and was about 24 

percent higher than the average for 63 years of record.

San Juan River basin. Although flow of the San Juan River near 

Bluff, Utah increased 27 percent in 1962, it was still 24 percent 

below the average for 48 years of record. Navajo Dam, one of the 

four large storage units of the Colorado River Storage Project, 

was closed in June 1962 and water from the headwaters of the San 

Juan River basin began forming Navajo Lake. The dam and reservoir are about 40 miles east of Farmington, N. Mex.

Virgin River basin. Flow of the Virgin River at Littlefield, Ariz., 

increased 31 percent over the average for the previous year, but 

remained 15 percent below the average for the past 33 years.

THE GREAT BASIN

Sevier Lake basin. Discharge of Sevier River below Piute Dam 

near Marysvale, Utah increased 62 percent over the flow of the 

previous year, but it still remained 24 percent lower than the 

previous 50-year average.

Flow of Sevier River near Lynndyl, Utah (at gage) increased 63 

percent, but still it was 14 percent lower than the average for 25 

years of record. About 1,700 acre-feet of water entered the river 

during 1962 water year from a deep well just downstream from 

the sampling station and upstream from the gaging station. Discharge data in this report differ from those published for the 

gaging station by the amount added from the well.

Humboldt River basin. A new station was established on the Humboldt River at Palisades, Nev. Chemical analysis for the new station covered the latter 45 percent of the annual flow. Runoff at the 

Humboldt River near Rye Patch, Nev., increased nearly 600 percent and the corresponding decrease in dissolved-solids content 

was about one-third of the average for the preceding year.
DISCUSSION OF RESULTS 21 

PACIFIC SLOPE BASINS IN CALIFORNIA

San ]oaquin River basin. Flow in the basin, although only half as 

great as the long-term average, was over three times as great as 

the preceding year. The chemical quality of the outflow showed 

an improvement over the preceding year. The weighted-average 

of dissolved solids for the San Joaquin River near Vernalis decreased from 578 ppm in the previous year to 321 ppm. The 

specific conductance at this station averaged 54 percent less than 

during the previous year.

Because of extensive development and widespread irrigation 

practices in the basin, the San Joaquin River channel at times 

carries mainly irrigation return water of poor chemical quality. 

The deterioration of the water quality is furthered by recycling 

the water from near the mouth of the river to mid-basin by means 

of pumps and canals.

Sacramento River basin. Flow in the basin was 10 percent greater 

than during the 1961 water year. Water released from Folsom 

Reservoir increased the flow at American River at Fair Oaks 

about 50 percent over that of the preceding year. Changes in 

chemical quality at this station were slight inspite of the increased flow. The weighted-average of dissolved solids decreased from 54 ppm in 1961 to 43 ppm in 1962 and the specific 

conductance decreased from 65 micromhos to 61 micromhos. 

This station was discontinued at the end of the water year.

The flow at Feather River at the Nicolaus increased approximately 70 percent over that of the previous year. Chemical 

changes at the Nicolaus station were similar to those occurring 

on the American River. The weighted-aver age of dissolved solids 

decreased from 76 ppm in 1961 to 67 ppm in 1962 and the specific 

conductance decreased from 108 micromhos to 93 micromhos. 

This station was discontinued as an irrigation station at the end 

of the water year.

PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA RIVER BASIN

Columbia River main stem. Average daily dissolved-solidsload decreased 11 percent in 1962. This was primarily due to a 14 percent decrease in water discharge in comparison to the 1961 water 

year.

Yafeima River basin. Even though the dissolved-solids content in 

tons per acre-foot increased 17 percent from the previous year, 

a 37 percent decrease in water discharge caused a 20 percent decrease in the average tons per day of dissolved solids.
22 QUALITY FOR IRRIGATION, 1962

Summary of water discharge, and tonnages of dissolved solids 1961-62

Station Runoff 

(acre-feet)

Dissolved

solids 

(tons per 

acre-foot)

Red River of the North basin:

Sheyenne River near Warwick, N. Dak. __________________

Souris (Mouse) River near Westhope, N. Dak-.___--_-----

Missouri River main stem:

Missouri River near Williston, N. Dak __________________

Missouri River at Nebraska City Nebr__.____ ___________

Yellowstone River basin:

Yellowstone River near Sidney, Mont----___--_-_-- __-_-.

Bighorn River at Bighorn, Mont ________________________

Tongue River at Miles City, Mont-______________________

Powder River near Locate, Mont -----_-_-------_---_--_

James River basin:

James River at Huron, S. Dak-__-__-_______-_-__-_--_-_

Platte River basin:

Platte Rive r at Brady, Nebr_ ___________________________

Supply Canal (Tri-County Diversion) near Maxwell, Nebr_- 

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

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 _______________________

Canadian River near Whitefield, Okla __-----_--_-___----

Arkansas River at Van Buren, Ark_----_--_----_----__-.

Red River basin:

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

Sabine River basin:

Sabine River near Ruliff, Tex__-___--_----_---_-_-__-__-

Neches River basin:

Neches River at Evadale, Tex __________________________

Trinity River basin:

Trinity River at Romayor, 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 Mathis, Tex ----.--.---____---__---_

Rio Grande basin:

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

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

Rio Grande conveyance channel at San Marical, N. Mex___- 

Rio Grande floodway at San Marcial, N. Mex _____________

Rio Grande below Elephant Butte Dam, N. Mex-----------

Rio Grande near El Paso, Tex-------__-_--------__-----

Rio Grande below Fort Quitman, Tex_-_---__-.--_-------

Rio Grande at Upper Preside, Tex----------------------

Rio Grande at Langtry, Tex----------------------------

Rio Grande at Laredo, Tex..., .........................

Rio Grande at Falcon Dam - U.S. tailrace ___-...-_-----_

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

Pecos River near Artesia, N. Mex----___-___-__-----_--

Pecos River below Red Bluff Dam, near Orla, Tex-_--___- 

Pecos Rive r near Shumla, Tex _________________________

20,730

3,310

17,200,000

23,680,000

10,450,000

2,017,000

338,400

761,300

448,600

202,800

993,400

614,600

168,400

2,030,000

5,008,000

973,600

3,396,000

3,277,000

5,429,000

3,746,000

2,325,000

3,264,000

1,023,000

1,243,000

661,900

80,080

326,560

1,039,600

534,300

213,718

691,500

366,400

53,240

18,951

718,600

1,312,000

2,611,000

135,600

127,800

44,450

101,8001

0.53

1.25

.59 

.54

.62

.90

.54

1.83

.51

.70

1.01

1.74

2.41

.84

.83

3.27

.57

1.60 

.14 

.14 

.40 

.76

.40 

.41

.44

.30

.29

.56

.38

.53

1.08

3.73

1.22

.86

.79

.63

1.89

3.57

12.50

2.74
DISCUSSION OF RESULTS

Summary of water discharge, and tonnages of dissolved solids 1961-62 Continued

23

Station Runoff 

(acre-feet)

Dissolved

solids 

(tons per 

acre-foot)

Colorado River main stem:

Colorado River near Glenwood Springs, Colo _____________ 2,391,600

Colorado River near .Cisco, Utah ________________________ 6,696,000

Colorado River at Lees Ferry, Ariz _____________________ 14,770,000

Colorado River near Grand Canyon, Ariz _________________ 15,250,000

Colorado River below Hoover Dam, Ariz.-Nev ______-_.-_. 8,304,000

Diversions and return flows at and below Imperial Dam:

YumaMainCanal below Colorado River siphon,at Yuma.Ariz. 351,000

Gunnison River basin:

Gunnison River near Grand Junction, Colo _---__--_--_____ 2,194,000

Green River basin:

Green River near Greendale, Utah _______________________ 3,746,000

Green River at Green River, Utah ______________________ 5,828,300

San Juan River basin:

San Juan River near Archuleta, N. Mex___-__--_--___.-___ 933,300 

San Juan River near Bluff, Utah ____._-________-.___-___ 1,511,000

Virgin River basin:

Virgin River at Littlefield, Ariz ----__----_----_-----_--- 141,900

Gila River basin:

Gila River at Kelvin, Ariz ______________________________ 285,900

Gila River below Gillespie Dam, Ariz -__.-__---.____---_- 8,530

Salt River below Stewart Mountain Dam, Ariz _____________ 524,900

Verde River below Bartlett Dam, Ariz ___------___--._-__ 330,700

Sevier Lake basin:

Sevier River below Piute Dam, near Marysvale, Utah-_-____ 119,500 

Sevier River near Lynndyl, Utah--... __-_-_-------------_ 121,300

Humboldt River basin;

Humboldt River at Palisade, Nev __---____--------------- __------__-.

Humboldt River near Rye Patch, Nev_-------------------- __---_---_-.

San Joaquin River basin:

San Joaquin River near Vernalis, Calif ___________________ 1,487,000

Sacramento River basin:

Feather River at Nicolaus, Calif__________----______-_-_- 4,388,000

American River at Fair Oaks, Calif-_--_-____--_-___----_ 2,028,000

Columbia River main stem:

Columbia River at Northport, Wash---.--- ------------ 69,284,000

Yakima River basin:

Yakima River at Kiona, Wash ------------__.-.__--_-___ 1,992,000

Snake River main stem:

Snake River near Heise, Idaho__-_-_._____-_-_______-_-__ 4,397,000

Snake River at King Hill, Idaho -------------------------- 6,123,000

Boise River basin:

Boise River at Notus, Idaho...._________________________ 306,200

Columbia River main stem:

Columbia River near The Dalles, Oreg -__--_---___-.-__-_ 122,600,000

Willamette River basin:

Willamette River at Salem, Oreg --.-----------___--.___- 15,205,000

0.33 

.66 

.69 

.72 

.99

1.11 

.64

.14

.54

.21 

.55

2.16

.85

8.34

.93

.35

1.85

.44

.09 

.06

.12 

.21

.30 

.44

.55 

.13 

.07
24 QUALITY FOR IRRIGATION. 1962

SNAKE RIVER BASIN

Snake River main stem. The average dissolved-solids content increased only 3 percent with a 19 percent increase in water discharge at the Heise, Idaho station. Downstream at King Hill, Idaho 

the discharge increased 13 percent, but the chemical quality 

showed no significant change from the previous water year.

Boise River basin. The average daily dissolved-solids content 

remained essentially the same as the 1961 water year even though 

discharge increased 12 percent.

PACIFIC SLOPE BASINS IN OREGON AND LOWER COLUMBIA RIVER BASIN

Columbia River main stem. Discharge decreased 10 percent and the 

average daily dissolved-solids load decreased 7 percent from the 

preceding water year. The average daily dissolved-solids content remained essentially the same.

Willamette River basin. There was no significant change in chemical quality, even though discharge decreased 20 percent from the 

1961 water year.

Discharge data and dissolved-solids loads for stations operated 

in 1962 are summarized in the table on p. 22.

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 (mimiographed). 

Kelly, W. P., 1951: Alkali soils their formation, properties and

reclamation, Am. Chem. Soc., mono. ser. Ill, p. 91 111. 

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.
SELECTED REFERENCES 25

Scofield, C. S., 1940, Salt balance in irrigated areas: Jour. Agriculture Res., v. 61, no. 1, p. 17 40.

 1949, Trends of irrigation development in the United States; 

Symposium, Am. Chem. Soc., p. 1 11 (mimiographed).

Straus, Michael, 1952, Use of water for irrigation, The physical 

basis of water supply and its principal uses: Interior and Insular Affairs Committee, U.S. House of Representative; v. 2.

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

Utah Agriculture Expt. Sta. Bull. 349.

U.S. Geol. Survey 1951 61, Quality of surface waters for irrigation, Western United States: Water-Supply Papers, 1264, 1362, 

1380, 1430, 1465, 1485, 1524, 1575, 1699, 1746, 1886 (last 2 in 

preparation).

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

of saline and alkali soils; U.S. Dept. Agriculture, Agriculture 

Handbook 60, p. 1-160.

Wilcox, L. V., 1955, Classification and use of irrigation waters; 

U.S. Dept. Agriculture Circ. 969.

 1957, Discharge and salt burden of the Rio Grande above 

Fort Quitman, Tex., and salt balance conditions of the Rio 

Grande project for the year 1956: U.S. Dept. Agriculture, Salinity Laboratory research report no. 85, 26 p.

Wilcox, L. V., and Durum, W. H., 1965, Irrigation of agricultural 

lands; quality of irrigation water: Amer. Soc. Agron., mon.chap. 

9 (in press).

792-031 O-65 3
PART 5. HUDSON BAY AND UPPER MISSISSIPPI RIVER BASINS

RED RIVER OF THE NORTH BASIN 

5-560. SHEYENNE RIVER NEAR WARWICK, N. DAK.

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

DRAINAGE AREA. 2,070 square miles, approximately, of which about 1,310 square miles is probably noncontr

RECORDS AVAILABLE. Chemical analyses: January 1951 to September 1962.

Water temperatures: January 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,060 micromhos Mar. 27; minimum, 280 micromhos 

Percent sodium: Maximum, 49 Aug. 26 to Sept. 12; minimum, 13 Oct. 1-31.

Sodium-adsorption-ratio: Maximum, 2.83 Aug 26 to Sept 12; minimum, 0.42 Oct. 1-31. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 1,940 micromhos Feb. 1, 1955; minimum daily, 2

Percent sodium: Maximum, 66 July 8-18, 1955; minimum, 10 Aug. 15-31, 1959.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance 

at Lincoln, Nebr.

Chemical analyses, water year October 1961 to September 1

Date

of 

collection

Oct. -31, 1961.

Jan. -31, 1962.

Mar. 30-31......

May 1-15. .......

June 25-July 31.

Aug. 26-Sept. 12 

Sept. 13-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

98 

143 

129 

98 

72

72 

234 

1,115 

5,534 

230

1,572 

440 

1,514 

1,694 

1,752

2,749 

1,923 

843 

314 

204

20,730

Silica 

(Si02) 

ppm

21.0

14.0 

16.0

19.0 

22.0

-

Equivalents per million

Calcium 

(Ca)

4 

4 

2.89 

4 

4

5 

5 

1.65 

1 

1.65

3 

4 

5 

5 

3.14

4 

4 

4 

4 

2.50

3

Magnesium 

(Mg)

14 

28 

1.48 

60 

98

20 

60 

1.15 

96 

1.15

20 

54 

.20 

.74 

2.39

.44 

.40 

.36 

.34 

1.89

.04

Sodium 

(Na)

.61 

.78 

1.09 

1.44 

1.57

1.70 

2.04 

1.04 

.91 

1.39

2.35 

2.91 

2.39 

3.39 

4.13

3.35 

3.31 

3.78 

4.18 

2.31

2.40

Potassium 

(K)

0.08

.25 

.23

.21

.07

-

Bicarbonate 

(HCO3)

3.87 

4.00 

4.38 

4.64 

5.11

5.24 

5.72 

2.61 

1.85 

2.64

3.47 

5.00 

5.24 

5.80 

6.31

5.49

6.23 

6.54 

5.28

4.27

Carbonate 

(C03)

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00

.00 

.00 

.00

0.01

Sulfate 

(S04 )

1.00

1.19 

1.37

2.89

1.19

-

Chloride 

(Cl)

0.15

.10 

.18

.48

.18

-

Fluoride

(F)

0.01

.01 

.02

.02

.01

-

Nitrate

(N03)

0.04

.08 

.14

.03

.02

-

B
RED RIVER OF THE NORTH BASIN Continued 

5-1240. SOURIS (MOUSE) RIVER NEAR WESTHOPE, N. DAK

LOCATION --At gaging station 1,200 feet upstream from second crossing of international boundary, 1 m 

(GeSicaf Surve/rive'r pl^'and"rof?le?°U *' " ""^ d°WnStream fr°m B° d*r * Creek > and at 

mile 

m

ile 

S "- is P«*«"T noncon

FY ?<5te?a«fa «oreSi °f*ober 1954 to September 1955, October 1956 tc September 1959, October 1960 to Se

EXTREMES 1961-62. --Specific conductance: Maximum daily, 3,900 microirhos Dec. 28; minimum daily, 536 mic

Percent sodium: Maximum, 48 Sept. 1-30, minimum, 37 Apr. 8.

Sodium-adsorption-ratio: Maximum, 5.50 Dec. 22-28; minimum, 1.60 Apr. 1-7. 

EXTREMES 1956-62 . Specif ic conductance: Maximum daily, 4,750 microirhos Feb. 21, 1961; minimum daily, 2

Percent sodium: Maximum, 72 Aug. 19-31, 1961; minimum, 29 Mar. 26 to Apr. 12, 1957 

at Lincoln1 yNebrPleS ^ Chemlcal analvsis composited by discharge. Records of specific conductance o

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961.

Apr. 1-7, 1962..

Apr 9 19

Sept . 1-30 ......

Total or 

weighted 

average

Runoff 

(acrefeet)

683 

202 

46 

19 

37 

6 

41 

31 

117

13 

175 

128 

158 

400 

400 

20 

219 

619

3,310

(S102) 

ppm

4.6 

2.8

3.9

2.6 

6.3

25.0

"

Equivalents per million

Calcium 

(Ca)

2.89 

11 

6.24 

26 

3 

1.45 

4 

6 

9

3.64 

9 

2.84 

6 

5 

5 

1.95 

6 

6

7

Magnesium 

(Mg)

5.84 

70 

11.60 

60 

40 

2.22 

80 

74 

60

6.58 

22 

5.35 

.76 

84 

96 

4.11 

16 

.40

.65

Sodium

(Na)

8.00 

9.18 

14.14 

20.05 

2.09 

2.31 

3.18 

5.09 

6.79

6.74 

6.53 

5.79 

4.74 

4.70 

5.22 

5.31 

5.52 

5.83

6.38

Potassium 

(K)

0.59 

1.00

.25

.59 

.51

.43

-

Bicarbonate 

(HCOs)

5.56 

7.38 

12.87 

20.16 

1.82 

2.10 

2.69 

4.08 

4.98

5.43 

5.16 

5.08 

4.28 

3.57 

3.67 

3.82 

3.87 

3.87

4.73

Carxmate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

9.79 

11.43 

16.30 

22.90 

3.21 

3.50 

4.56 

6.62 

10.06

10.64 

9.20 

7.75 

6.50 

6.16 

6.45 

6.64 

6.27 

7.27

-

Chloride 

(Cl)

1.78 

3.05

.51

1.38 

1.18

.96

-

Fluoride

(F)

0.03 

.04

.02

.03 

.02

.02

~

Nitrate

(N03)

0.13 

.13

.12

.10 

.12

.23

-

3

p
PART 6. MISSOURI RIVER BASIN

MISSOURI RIVER MAIN STEM 

6-3300. MISSOURI RIVER NEAR WILLISTON, N. DAK.

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

River, and at mile 1,553.1.

DRAINAGE AREA. 164,500 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962.

Water temperatures: May 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,360 micromhos Dec. 28; minimum daily, 380 mi

Percent sodium: Maximum, 38 July 16-31; minimum, 29 July 1-15.

Sodium-adsorption-ratio: Maximum, 2.01 Dec. 25-31; minimum, 1.04 July 1-15. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 1,360 micromhos Dec. 28, 1961; minimum daily, 

Percent sodium: Maximum, 43 Apr. 25-30, 1957; minimum, 24 May 27 to June 2, 1956.

REMARKS. Daily samples for chemical analyses composited by discharge. Records of specific conductance 

at Lincoln, Nebr.

Chemical analyses, water year October 1961 to September 

Date 

collection

Oct. 1-31, 1961.

Jan. 1-31, 1962.

Mar. 12-23... ...

May 14 27

May 28-June 7 ...

Runoff 

(acrefeet)

1,338,585 

1,043,702 

261,382 

281 , 316 

231 , 729

1,029,917 

852,456 

183,273 

198,982 

337,309

526 , 255 

72,397 

515,663 

568,264 

429,679

185,058 

275 , 861 

494,559 

753,362 

882,109

Silica 

(Si02) 

ppm

9.6

8.3 

12.0

Equivalents per million

Calcium 

(Ca)

4 

4 

3.04 

4

7

5 

4 

6 

4 

3.34

5 

2.89 

4 

4 

4

5 

4 

4 

3 

5

Magnesium 

(Mg)

84 

88 

2.14 

90 

96

46 

94 

.08 

.98 

2.06

38 

1.65 

.06 

.50 

.88

.32 

.40 

.04 

.22 

.54

Sodium 

(Na)

2.39 

2.48 

2.65 

2.22 

4.00

2.52 

2.35 

3.05 

2.31 

2.44

2.78 

2.57 

2.26 

2.57 

2.70

3.09 

2.44 

1.96 

1.74 

3.22

Potassium 

(K)

0.11

.12 

.12

Bicarbonate 

(HCCg

3.18 

3.28 

3.47 

3.33 

5.28

3.67 

3.03 

3.11 

3.06 

3.54

3.34 

2.90 

2.59 

2.92 

3.23

3.34 

2.85 

2.75 

2.36 

2.90

Carx>nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

3.98

3.89 

3.58

Chloride 

(CD

0.31

.31 

.68

Fluoride

(F)

0.03

.04 

.03

Nitrate

(Ncg

0.01

.00 

.04

3
June 8-14, 1962.

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

Sept. 1-30......

Total or

weighted

average

559,954

1,257,025

1,108,205

1,008,397

774,744

17,200,000

_

11.0__

11.0

3.86

2.45 1 1.07

4.46

2.45 1 2.39

4.48

2.13

1.65

1.31

2.35

2.52

2.87

2.32

_

.09__

.05

2.59

2.29

2.31

2.57

2.85

3.23

2.92

.00

.00

.00

.00

.00

.00

0.00

_

2.71

4.16

_

.15

.28

_

.02__

.03

.02

.00
MISSOURI RIVER MAIN STEM Continued 

6-8070. 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 1962.

Water temperatures: May 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 867 micromhos Nov. 1; minimum daily, 346 micro

Percent sodium: Maximum, 37 Oct. 1-16; minimum, 16 Apr. 1-5.

Sodium-adsorption-ratio: Maximum, 1.75 Dec. 17 to Jan 28; minimum, 0.46 Apr. 1-5. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 936 micromhos Jan. 6, 1953; minimum daily, 327 

Percent sodium: Maximum, 43 May 29, 1956; minimum, 16 Apr. 11-15, 1960, Apr. 1-5, 1962.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance 

Lincoln, Nebr.

Chemical analyses, water year October 1961 to September 19

Date 

of 

collection

Oct. 1-16, 1961.

Dec. 17-Jan. 28. 

1962. .........

Jan. 29-Feb. 10.

Mar. 1-18.......

Mar. 23-26......

Mar. 27-29......

Mar. 30-31......

Aor. 6-13.......

Runoff 

(acrefeet)

948,575 

429,620 

855,669 

314 , 896 

47,603

1,113,025 

388,324

661,567 

528,754 

247,696 

540,694 

678,347 

585,124 

1,079,008 

1.175.484

Silica 

(Si02) 

ppm

21.0 

12.0

Calcium 

(Ca)

4 

5 

4 

3.24 

6

5 

4

4 

4 

4 

3 

3 

2.10 

3 

3

Equivalents per million

Magnesium 

(Mg)

.46 

.00 

88 

1.73 

14

08 

44

.52 

.94 

.00 

.64 

08 

.80 

.06 

.46

Sodium 

(Na)

2.57 

2.57 

2.44 

2.44 

2.78

2.78 

2.31

2.13 

2.39 

1.65 

1.17 

.74 

.65 

.57 

.70

Potassium 

(K)

0.17 

.26

Bicarbonate 

(HCOa)

3.21 

3.85 

3.80 

3.85 

4.93

3.95 

3.41

3.29 

3.67 

3.02 

2.80 

2.49 

2.39 

2.39 

2.59

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

2.94 

.98

Chloride 

(CD

0.79 

.20

Fluoride 

(F)

0.02 

.02

Nitrate 

(N03)

0.06 

.12

B
Apr. 14-18, 1962

Sept. 1-30. .....

Total or 

weighted 

average

465,917

964,364

2,982,149

2,117,018

2,098,711

23,680,000

___

12.0-

4 454

2.9945

3.344

02 

46

14

22

68

12

1.65

47

0.87

2.04

1.44

1.70

2.26

2.39

1.74

-__

.17-

2.85

3.51

3.08

3.28

3.34

3.21

3.20

.00

.00

.00

.00

.00

0.00

-___

3.62"

"__

.34_

.51-

~__

.02_

.03-

-__

.07_

.05-
YELLOWSTONE RIVER BASIN 

6-3295. YELLOWSTONE RIVER NEAR SIDNEY, MONT.

LOCATION. At bridge on State Highway 23, 2 miles south of Sidney, Richland County, 4.5 miles downstream fr

Fox Creek, and 30 miles upstream from mouth. 

DRAINAGE AREA. 69,103 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1951 to September 1962.

Water temperatures: January 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,180 microrahos Dec. 22-24; minimum daily, 332 mi

Percent sodium: Maximum, 40 Aug. 17-31; minimum, 28 June 25 to July 14.

Sodium-adsorption-ratio: Maximum, 2.18 Apr. 11-23; minimum, 0.96 June 25 to July 14. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 2,780 micromhos Jan. 14, 1951; minimum daily, 257 

Percent sodium: Maximum, 48 May 1-30, 1953; minimum, 21 June 14-26, 1959.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance of d

at Worland, Wyo. No appreciable inflow between gaging station and sampling point.

Chemical analyses, water year October 1961 to September 196

Date 

of 

collection

Oct. 1-21, 1961.

Dec. 28-Jan. 14, 

1962. .........

Jan. 15-19.. ....

Feb. 14-Mar. 2..

Apr. 24-May 10. .

May 27- June 6 ...

June 25- July 14.

Runoff 

(acrefeet)

367,254 

172,899 

313,585 

153,207 

134,876 

95,804

227,496 

29,355 

92,636 

91,839 

144,397

393,164 

151,152 

554,420 

219,372 

247,563

520,959 

649,944 

742,036 

1,704,436 

1,544,727

Silica 

(Si02) 

ppm

17.0 

11.0

15.0

Equivalents per million

Calcium 

(Ca)

3.64 

3.39 

5 

5 

5 

4.19

5 

5 

6 

5 

2.64

5 

7 

4 

5 

6

4 

2.00 

5 

4 

3

Magnesium 

(Mg)

1.81 

1.65 

30 

66 

92 

3.45

76 

84 

32 

72 

1.56

60 

10 

90 

.92 

.02

.32 

1.23 

.88 

.44 

.00

Sodium 

(Na)

3.39 

3.05 

3.26 

3.44 

3.39 

4.31

3.09 

3.39 

3.78 

3.18 

2.31

3.13 

3.96 

2.87 

3.52 

3.78

2.13 

1.65 

3.35 

1.87 

1.17

Potassium 

(K)

0.09 

.10

.07

Bicarbonate 

(HC03)

3.38 

3.16 

3.18 

3.43 

3.61 

4.79

3.62 

3.70 

3.67 

3.54 

2.59

2.74 

3.93 

2.84 

3.44 

3.44

2.98 

2.36 

3.02 

2.90 

2.18

Carbonate 

(C03)

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04)

5.45 

4.87 

5.25 

4.91 

5.00 

6.33

4.77 

5.16 

5.98 

4.81 

3.60

5.41 

6.52 

4.52 

5.45 

8.20

3.27 

2.29 

5.91 

3.12 

1.81

Chloride 

(Cl)

0.45 

.24

.16

Fluoride

(F)

0.03 

.02

.02

Nitrate

(N03)

0.02 

.02

.01

Bor

(B

pp

0.2

.

.
July 15-31, 1962

Sept. 1-9.......

Sept. 10-30. ....

Total or

weighted

average

792,734

392,886

366,754

10,450,000

____

13.0

4.32

3.09 | 1.89

4.65

2.48

2.65

3.18

3.18

3.13

2.49

_

___

__

.09

2.62

2.77

2.84

3.21

3.10

2.88

.00

.00

.00

.00

.00

0.00

3.83

4.16

4.75

4.73

4.68

4.01

_

____

.31

_

____

.02

_

____

.00
YELLOWSTONE RIVER BASIN Continued

6-2947. BIGHORN RIVER AT BIGHORN, MONT.

LOCATION. At gaging station at bridge on U. S. Highway 10, 0.8 mile upstream from mouth, 1 mile southwes

Custer.

DRAINAGE AREA. 22,885 square miles. 

RECORDS AVAILABLE. Chemical analyses: February 1950 to September 1962.

Water temperature: April 1949 to September 1951, August 1952 to November 1958, June 1959 to September 

Sediment records: July 1947 to September 1954, October 1955 to September 1958, October 1959 to Septemb

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,490 micromhos Dec. 14; minimum daily, 468 mic

Percent sodium: Maximum, 41 Oct. 1-31, May 18-31; minimum, 33 June 26-30.

Sodium-adsorption-ratio: Maximum, 2.83 Oct. 1-31; minimum, 1.32 June 26-30. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 1,940 micromhos July 10, 1961; minimum daily, 3

Percent sodium: Maximum, 49 May 23-28, 1952; minimum, 27 June 20-21, 1955.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance o

Worland, Wyo.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-12, 1961 

Oct. 13-31. ....

Nov. 16-30. ....

Dec. 1-9.. .....

Dec. 10-31.....

Jan. 1-31, 1962

Mar. 13-21.....

Mar. 22-31.....

Apr. 24 -May 8. . 

May 9-17.... ...

Runoff 

(acrefeet)

78,569 

118,108 

93,570 

92,261 

51,055

95,302 

116,642 

194,698 

39,495 

83,068

131,367 

113,276 

123,378 

56,767 

139,954

75,314 

142,897 

131 , 246 

212,263 

121.388

Silica 

(Si02) 

ppm

19.0 

9.6

14.0

Equivalents per million

Calcium 

(Ca)

5.24 

4.94 

7. 

7. 

7.

5.94 

6.

5. 

8. 

.7.

3.79 

6 

7 

6 

5

4 

5 

5 

4^ 

2.15

Magnesium 

(Mg)

2.88 

2.39 

60 

52 

52

3.78 

92 

80 

10 

26

1.89 

52 

56 

50 

70

SS 

80 

48 

70 

1.32

Sodium 

(Na)

5.70 

5.00 

5.00 

4.87 

4.65

6.22 

4.09 

3.35 

4.87 

4.35

3.44 

4.22 

5.09 

4.13 

3.35

2.57 

4.05 

3.31 

2.65 

1.74

Potassium 

(K)

0.12 

.09

.06

Bicarbonate

(Hccg

4.03 

3.74 

3.87 

3.93 

3.97

5.10 

3.84 

2.95 

4.03 

3.74

3.03 

3.43 

3.84 

3.51 

3.20

2.72 

3.20 

3.05 

2.82 

2.46

Car30 nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

9.51 

8.47 

8.06 

7.70 

6.93

10.33 

6.33 

5.83 

8.24 

7.04

5.68 

6.64 

8.20 

6.62 

5.45

4.39 

6.06 

5.37 

4.21 

2.60

Chloride 

(CD

0.56 

.31

.10

Fluoride 

(F)

0.03 

.02

.01

Nitrate 

(N03)

0.02 

.02

.01

B
July 1-13, 1962

July 26-Aug. 5.

Aug . 20-31 .'....

Sept. 24-30....

Total or 

weighted 

average

185,318

70,167

52,435

33,287

105,035

50,206

2,017,000

-

3.74 

6.28

7.46 

6.72

7.06

4.19 1 2.63

7.06

6.26

1.91

4.92

4.61

4.79

3.91

2.49 

3 44

3.46 3

0Q

3 

Co

3.59

3.37

.00

.00

.00

0.00

2.94

8.12 8 1 O

7 o^

7.79

6.32

"-

37

34

--

-

--

02

02

--

--

--

04

--
YELLOWSTONE RIVER BASIN Continued 

6-3085. TONGUE RIVER AT MILES CITY, MONT.

LOCATION. At gaging station, 4 miles south of Miles City, Custer County, and 8 miles upstream from mouth.

DRAINAGE AREA. 5,379 square miles.

RECORDS AVAILABLE. Chemical analyses: January 1951 to September 1962.

Water temperatures: April 1949 to September 1962.

Sediment records: June 1946 to September 1951. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,420 micromhos Aug. 4; minimum daily, 346 micro

Percent sodium: Maximum, 41 July 31 to Aug. 5; minimum, 20 Apr. 25 to May 8, June 8-11.

Sodium-adsorption-ratio: Maximum, 2.82 July 31 to Aug. 5; minimum, 0.65 June 8-11. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 2,390 micromhos Sept. 11, 1958; minimum daily, 2

Percent sodium: Maximum, 69 May 4, 1955; minimum, 17 June 2-15, 1956, June 7-16, June 30 to July 12, 19

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance of 

Worland, Wyo.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-21, 1961. 

Oct. 22-31......

Jan. 1-8, 1962..

Feb. 25-Mar. 10.

Apr. 1-12.......

Mar. 13-24......

Apr. 25-May 8. . .

Runoff 

(acrefeet)

3,711 

1,198 

2,829 

339 

1,541 

2,836

5,355 

2,809 

3,055 

2,517 

5,427 

6,141

10,524 

6,998 

20,886 

16,185 

10,949 

19,188

Silica 

(S10a) 

ppm

12.0

_t

7.7

Equivalents per million

Calcium 

(Ca)

3.34 

3.59 

7 

3.34 

7 

7

9 

6 

8 

7 

2 

4

8 

3.59 

5 

6

7 

5

Magnesium 

(Mg)

3.45 

4.03 

30 

5,02 

66 

28

28 

56 

64 

68 

70 

84

62 

3.87 

56 

.74 

.02 

.90

Sodium 

(Na)

3.09 

3.74 

3.57 

4.92 

3.61 

3.09

3.48 

2.35 

2.78 

2.65 

1.09 

1.48

2.48 

2.09 

1.65 

1.83 

2.18 

1.44

Potassium 

(K)

0.13 

.14

Bicarbonate

(Hccg

4.54 

5.23 

4.97 

5.74 

4.98 

4.52

5.77 

4.46 

5.74 

4.72 

2.23 

3.34

5.43 

4.75 

3.72 

4.36 

4.47 

3.84

Carxinate 

(CO,)

0.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

Sulfate 

(SO*)

5.31 

6.25 

5.64 

7.35 

6.00 

4.93

6.12 

3.89 

5.25 

5.33 

1.58 

2.98

5.29 

4.46 

3.31 

3.96 

4.48 

3.33

Chloride 

(Cl)

0.14 

.28

Fluoride 

(F)

0.02 

.02

Nitrate

(NO;,)

0.00 

.02

Bo

(

p

0
May 9-28, 1962. 

.

May 29 -June 7. . .

June 8-11. ......

June 12-30. .....

July 1-18. ......

July 19-30. .....

July 31-Aug. 5..

Aug. 6-15. ......

Aug. 16-31......

Sept. 1-30......

Total or

weighted

average

32,608

23,226

11,187

102,355,

19,922

5,141

521

3,431

4,253

13,269

338,400

_

7.7_

.__

11.0

4.30

3.30

1.80 | 1.48

3 40

4 02

4.94

7.92

5 32

5 ,92

2.89 ] 3.13

4.85

1.39

1 .39

.83

1.31

1.74

2.00

5.61

2.09

2.57

2.18

1.68

__

.06_

___

.12

3.21

2.80

2.59

2.82

3.15

3.62

6.05

3.85

4.23

3.97

3.49

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

0.00

2.35

1.85

0.42

1.81

2.52

3.16

7.27

3.41

3.62

4.00

2,88

_

.00_

___

.09

__

.01_

___

.02

_

.00_

___

.01
YELLOWSTONE RIVER BASIN Continued 

6-3235. POWDER RIVER NEAR LOCATE, MONT.

LOCATION. At gaging station at bridge on U. S. Highway 12 at present site of Locate (5 miles west of for

from Locate Creek, and 25 miles east of Miles City. 

DRAINAGE AREA. 13,189 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1949 to September 1962.

Water temperatures: February 1951 to May 1954, October 1954 to September 1962. 

Sediment records: March 1950 to September 1953. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 3,320 micromhos Dec. 16, minimum daily, 578 micr

Percent sodium: Maximum, 47 July 14; minimum. 25 July 15-22.

Sodium-adsorption-ratio: Maximum, 4.75 Jan. 3; minimum, 1.77 July 15-22. 

EXTREMES, 1951-62. Specific conductance;- Maximum daily, 9,270 micromhos Dec. 16, 1955; minimum daily, 31

Percent sodium: Maximum, 83 Oct. 22-24, 1953; minimum, 17 Aug. 11-13, 1955.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance of 

Worland, Wyo.

Chemical analyses, water year October 1961 to September

Date 

of 

collection

Oc . 1-23, 1961. 

Oc . 24-Nov. 10.

De . 12-Jan. 2,

Feb. 23-Mar. 3. .

Mar. 25-Apr. 3..

Apr 26-May 11 . .

May 16-23. ......

Runoff 

(acrefeet)

5,246 

4,034 

3,245 

2,182

1,008

69 

960 

824 

1,587 

73,797

2,446 

10,536 

20,747 

26,162 

13,527

5,034 

6,387 

32,465 

8,339 

11,488

Silica 

(Si02) 

ppm

8.2

7.3 

11.0

Equivalents per million

Calcium 

(Ca)

8.83 

12 

9.03 

15

19

4.74 

18 

14 

4 

7

13 

13 

4.24 

10 

12

14 

12 

6 

3.34 

5

Magnesium 

(Mg)

4.69 

76 

6.50 

20

12

1.11 

.08 

.52 

88 

.96

04 

98 

2.39 

.66 

.50

.22 

.14 

.96 

1.73 

.84

Sodium 

(Na)

10.01 

9.27 

13.05 

10.14

16.49

4.18 

13.62 

9.48 

3.78 

3.92

8.70 

9.31 

4.35 

7.05 

9.05

10.40 

8.48 

3.78 

3.00 

4.35

Potassium 

(K)

0.19

.16 

.09

Bicarbonate 

(HCOJ

3.84 

3.90 

4.20 

4.29

4.59

2.15 

5.43 

4.95 

2.88 

2.80

3.33 

3.65 

2.51 

3.49 

3.80

4.29 

3.38 

3.02 

2.66 

3.29

Carbonate 

(C03)

.00 

.00 

.00 

.00

.00

.17 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

17.91 

15.09 

20.05 

17.70

26.65

6.97 

26.86 

16.86 

5.43 

8.64

15.45 

17.07 

7.33 

12.33 

15.53

17.07 

14.45 

6.75 

4.66 

6.50

Chloride 

(Cl)

3.86

.93 

.59

Fluoride

(F)

0.03

.02 

.02

Nitrate 

(N03)

0.03

.02 

.02

Bo

(

p

0
May 24-31, 1962.

June 30-July 13 .

July 15-22. .....

July 23-31. .....

Aug. 1-13.......

Sept. 9-26. .....

Sept. 27-30.....

Total or 

 weighted 

average

99,983 

73,386

21,755

33,703

135,955

43,597 

7,180

64,867

11,746

17,353

8,819

2,206

5,570

5,133

761,300

12.0__

--___

11.0_-

16 

11.08

12

10

13

11 4

14

16

17

13.17

19

17

17

12

82 

5.10

48

64

66

28 

54

02

60

72

6.33

94

30

12

.86

8.00 

8.13

7.70

4.48

5.96

6.09 

4.05

4.70

10.66

9.44

12.18

14.88

13.05

12.75

6.57

.23_-___

.26_-

3.02 

3.39

3.20

3.10

2.82

3.06 

3.21

2 . 88

3.47

3.13

3.47

3.21

3.38

4.10

3.09

.00 

.00

.00

.00

.00

.00 

.00

.00

.00

.00

.00

.00

.00

.00

0.00

19.78 

19.53

15.30

11.10

15.47

13.01 

5.18

15.09

21.65

21.65

25.61

27.90

23.32

22.28

14.91

.90_

.28__

1.86

--

.02_-

.03-

.06_-

__

__

.03

--
JAMES RIVER BASIN 

6-4760. JAMES RIVER AT HURON, S. DAK.

LOCATION. Just upstream from Chicago and North Western Railway Co. bridge, 135 feet upstream from gaging s

Beadle County, and 300 feet upstream from bridge on U. S. Highway 14. 

DRAINAGE AREA. 16,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: April 1950 to September 1951, August 1956 to September 1962.

Water temperatures: August 1956 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,530 micromhos Feb. 24; minimum daily, 202 micro

Percent sodium: Maximum, 62 Oct. 12-20, 22-26, 28-30; minimum, 24 Mar. 27-29.

Sodium-adsorption-ratio: Maximum, 6.28 Oct 12-20, 22-26, 28-30; minimum, 0.55 Mar. 27-29. 

EXTREMES, 1956-62. Specific conductance: Maximum daily, 2,640 micromhos Mar. 1, 1959; minimum daily, 176 

Percent sodium: Maximum, 62 Sept. 22-30, 1959, Oct. 12-20, 22-26, 28-30, 1962; minimum, 24 Mar. 29-30, 1

REMARKS. Records of specific conductance of daily samples available in district office at Lincoln, Nebr. 

channel near the sampling site and, therefore, does not pass the gaging station.

Chemical analyses, water year October 1961 to September 196

Date 

of 

collection

Oct. 12-20,22-26, 

28-30, 1961... 

Nov. 2, 3, 12... 

Feb. 23-28, 1962

Apr. 2-7. .......

July 1-14. ......

Runoff 

(acrefeet)

799 

64 

208 

260 

1,636

12,300 

17,058 

10,909 

63,753 

21,326

11,679 

23,147 

27,491 

34,017 

82,116 

27.019

Silica 

(Si02) 

ppm

5.9 

8.6 

13.0

7.0

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

2.50 3.78 

2 . 84 3 . 70 

7.14 6.33 

8 32 

4.56

1.54 

1.44 

.95 I .65 

1.32 

1.56

2.00 

2.76 

4.62 

3.70 

4.30 

4.76

Sodium

(Na)

11.14 

9.22 

11.66 

5.26 

2.83

.48 

1.00 

1.44 

.91 

.83

1.00 

1.65 

3.18 

2.26 

2.61 

3.26

Potassium 

(K)

0.51 

.46 

.59

.28

Bicarbonate 

(HCOJ

4.75 

4.28 

8.16 

4.98 

2.82

1.11 

1.18 

1.20 

1.07 

1.21

1.43 

2.08 

3.85 

2.75 

3.38 

4.33

Carxmate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

8.58 

8.58 

13.43 

7.06 

3.75

.90 

1.00 

1.52 

1.04 

1.10

1.44 

2.02 

3.08 

2.77 

3.14 

3.02

Chloride 

(Cl)

4.46 

3.36 

3.98

.39

Fluoride

(F)

0.02 

.02 

.02

.02

Nitrate

(N03)

0.04 

.01 

.10

.10

Bo

(

p

0
July 15

Sept. 30. .......

Total or

weighted

average

1,860

23,738

44,763

43,140

1,293

448,600

24.0

__

___

27.0

2.54444

2.54

3.

2.30

82

82

88

2.22

51

3.70

3.26

2.83

2.48

2.39

2.61

.38_

.33

4.57

4.67

5.10

5.34

5.18

3.11

.00

.00

.00

.00

.00

0.00

3.04

2.64

1.89

1.37

1.33

2.11

1.18

.73

.01

.01

.03

.01
PLATTE RIVER BASIN

6-7660. PLATTE RIVER AT BRADY, NEBR.

LOCATION. At gaging station at highway bridges, 0.5 mile and 2.5 miles south of Brady, Lincoln County, a

Platte and South Platte Rivers.

DRAINAGE AREA. 56,900 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: November 1950 to September 1962.

Water temperatures: March 1951 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,460 micromhos Jan. 22 (chan. 1); minimum dail

Percent sodium: Maximum, 39 Aug. 1-31; minimum, 30 Mar. 1-31, June 1-30. 

Sodium-adsorption-ratio: Maximum, 1.91 Aug. 1-31; minimum, 1.36 June 1-30. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 1,460 micromhos Jan. 22, 1962 (chan.l); minimum 

Jan. 10, 1957 (chan. 1).

Percent sodium: Maximum, 46 Aug. 1-2, 1955; minimum, 22 Nov. 26, 1952.

REMARKS. Daily samples for chemical analysis from each of two major channels composited by discharge. C

Supply Canal (Tri-County Diversion) near Maxwell, Nebr. Records of specific conductance of daily samp

in district office at Lincoln, Nebr.

Chemical analyses, water year October 1961 to September 1962

Date 

of 

collection

Oct. 1-10, 1961.

Jan. 1-31, 1962.

July 1-31 .......

Sept. 1-30. .....

Total or 

weighted 

average

Runoff 

(acrefeet)

2,579 

5,998 

11,425 

7,680 

7,557

28,592 

26,325 

15,310 

9,997 

24,042

21,243 

15,187 

18,569 

8,331

202,800

Silica

(sicg

ppm

36.0

36.0

37.0 

34.0

-

Equivalents per million

Calcium 

(Ca)

4 

4 

4 

3.89 

4

6 

5 

3.59 

5 

4

3.29 

4 

4 

3.14

5

Magnesium 

(Mg)

60 

46 

94 

1 .89 

84

72 

48 

1.65 

34 

20

1.23 

40 

38 

1.32

.07

Sodium

(Na)

2.39 

2.26 

2.39 

2.91 

2.22

3.26 

2.52 

2.31 

2.52 

2.44

2.04 

2.13 

2.83 

2.61

2.54

Potassium 

(K)

0.28

.25

.28 

.28

-

Bicarbonate

(Hccg

3.70 

3.69 

3.65 

3.93 

3.67

4.10 

3.47 

3.57 

3.54 

3.52

3.65 

3.46 

3.54 

3.59

3.65

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04)

4.16

3.37

2.62 

3.12

-

Chloride

(Cl)

0.62

.54

.42 

.51

-

Fluoride

(F)

0.03

.03

.03 

.03

-

Nitrate

(N03)

0.04

.03

.02 

.02

~

Boro

(B) 

ppm

0.0

.0

.0

.1

-
PLATTE RIVER BASIN Continued

6-7657. SUPPLY CANAL (TRI-COUNTY DIVERSION) NEAR MAXWELL, 

LOCATION. At gaging station at Parshall Flume in sec. 28, T. 13 N., R. 29 W., near Maxwell, Lincoln Coun

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1962.

Water temperatures: March 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,680 micromhos Jan. 23; minimum daily, 658 mic

Percent sodium: Maximum, 41 Aug. 1 to Sept. 30; minimum, 33 Feb. 1 to Mar. 31.

Sodium-adsorption-ratio: Maximum, 2.42 Jan. 1-31; minimum, 1.87 June 1-30. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 1,680 micromhos Jan. 23, 1962; minimum daily, 4

Percent sodium: Maximum, 48 Aug. 1 to Sept. 15, 1955; minimum, 32 Feb. 25 to Mar. 22, May 19-28, 1957.

REMARKS. Daily samples for chemical analysis composited by discharge. Composite periods normally identi

of specific conductance of daily samples available in district office at Lincoln, Nebr. Records of di

Engineer.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-10, 1961.

Dec . 17-31 ......

Jan. 1-31, 1962.

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

Aor. 1-30. ......

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

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

24,932 

54 , 940 

90,506 

34,147 

36,982

65,915 

88,915 

97,581 

71 , 464 

84 , 853

75,392 

85,775 

105,021 

76,998

993,400

Silica 

(Si02) 

ppm

24.0

27.0

31.0 

20.0

-

Equivalents per million

Calcium 

(Ca)

6 

4 

7 

5.09 

9

10 

9 

5.99

7 

5

3.89 

5 

5 

2.99

Magnesium 

(Mg)

44 

74 

30 

3.04 

46

60 

60 

3.04 

62 

00

1.89 

.98 

.80 

1.65

7 .07

Sodium 

(Na)

3.87 

3.13 

4.22 

4.61 

4.92

5.57 

4.79 

4.65 

4.35 

3.09

3.18 

3.57 

4.09 

3.48

4.08

Potassium 

(K)

0.26

.25

.28 

.28

--

Bicarbonate

(Hccg

3.84 

3.57 

3.80 

3.87 

4.36

4.26 

4.06 

4.20 

3.21 

3.54

3.43 

3.38 

3.39 

3.49

3.71

Carbonate 

(C03)

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

7.81

8.33

4.87 

4.04

--

Chloride 

(Cl)

1.04

1.10

.73 

.65

--

Fluoride 

(F)

0.03

.04

.03 

.03

"

Nitrate

(N03)

0.02

.04

.02 

.02

-

B

p

0
PLATTE RIVER BASIN Continued

6-7640. SOUTH PLATTE RIVER AT JULESBURG, COLO.

LOCATION. At gaging station at bridge on U. S. Highway 385, 0.9 mile southeast of Julesburg, Sedgwick Cou

line, and 8 miles downstream from Lodgepole Creek. 

DRAINAGE AREA. 23,138 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1962.

Water temperatures: October 1945 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,490 micromhos Jan. 22; minimum daily, 1,350 mi

Percent sodium: Maximum, 41 May 27-29; minimum, 33 Dec. 1-15.

Sodium-adsorption-ratio: Maximum, 3.06 Sept. 1-30, minimum, 2.49 Dec. 20-31. 

EXTREMES, 1945-62. Specific conductance: Maximum daily, 2,490 micromhos Jan. 22, 1962; minimum daily, 61

Percent sodium: Maximum, 82 Mar. 1-12, 1947; minimum, 29 Aug. 6-10, 1951, Aug. 19, 1953, Sept. 14-17, 1

REMARKS. Records of specific conductance of daily samples available in district office at Lincoln, Nebr.

Chemical analyses, water year October 1961 to September 196

Date 

of 

collection

Oct. 1-10, 1961.

Jan. 1-11, 1962.

May 1-15. .......

May 30- June 30. .

July 31-Aug. 7. .

Sept. 1-30. .....

Total or 

weighted 

average

Runoff 

(acrefeet)

18,208 

57,648 

84,258 

33,114 

11,568 

34,108

26 , 553 

49,745 

47,419 

' 35,970

77,474

34,691 

955 

335 

3,588 

5,141

50,586 

15,947 

16,661 

5,141 

5,504

614,600

Silica 

(Si02) 

ppm

19.0 

19.0

22^0 

27.0

--

Equivalents per million

Calcium 

(Ca)

12 

11 

12 

7.93 

14 

12

13 

13 

11 

12 

8.08

12 

13 

10 

13 

9

8.38

12 

11 

13 

8.93

12

Magnesium

(Mg)

26 

92 

12

4.77 

04 

12

40 

90 

28 

34 

4.36

60 

10 

.60 

.96 

.36

4.44

.70 

.80 

.06 

4.61

.46

Sodium

(Na)

6.70 

6.26 

6.53 

6.53 

7.31 

6.13

7.05 

7.31 

5.96 

6.53 

6.70

6.96 

7.35 

6.18 

8.70 

6.53

7.53

7.35 

6.61 

7.40 

7.96

6.73

Potassium 

(K)

0.28 

.23 

.38

.41

-

Bicarbonate 

(HC03)

4.47 

4.62 

4.80 

5.03 

5.49 

4.93

5.43 

5.51 

4.56 

4.72 

4.77

4.49 

4.16 

3.41 

4.44 

3.34

4.34

4.15 

4.23 

4.18 

4.13

4.75

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

..00 

.00 

.00 

.00

.00

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

12.24 

12.45 

14.22

15.20

-

Chloride

(Cl)

1.55 

1.55 

1.72

1.95

-

Fluoride

(F)

0.04 

.04 

.04

.04

-

Nitrate

(N03)

0.08 

.14 

.03

.03

"

Bo

(B

pp

0.

.

.

.
PART 7. LOWER MISSISSIPPI RIVER BASIN

ARKANSAS RIVER BASIN 

7-1305. ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR, C

LOCATION. At gaging station 1.1 miles upstream from Caddoa Creek, 1.7 miles downstream from John Martin D

DRAINAGE AREA. 18,917 square miles, of which 785 square miles is probably noncontributing.

RECORDS AVAILABLE. Chemical analyses: August 1942 to August 1943, October 1945 to July 1949, January 195

Water temperatures: January 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 4,830 micromhos Nov. 7; minimum daily, 768 micro

Percent sodium: Maximum, 44 Feb. 23 to Mar. 31; minimum, 24 July 2-6.

Sodium-adsorption-ratio: Maximum, 6.28 Nov. 3-13, minimum, 1.50 July 2-6. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 5,180 micromhos Apr. 21, 1955; minimum daily, 64

Percent sodium: Maximum, 44 Feb. 23 to Mar. 31, 1962; minimum, 23 July 1-10, 1955.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Salt Lake City, Utah.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-14, 1961 

Oct . 25-Nov . 1 .

Jan. 1-7, 1962.

Feb. 23 -Mar. 31

Apr. 10-May 1..

May 20-25 ......

Runoff

(acrefeet)

11,052 

6,149 

6,426 

12 

89

34 

89 

14 

252 

54

7 

133 

12 

161 

301

1,089 

37,833 

17,500 

319 

3,844

Silica 

(Si02) 

ppm

15.0

Equivalents per million

Calcium 

(Ca)

8.58 

9.38 

8.18 

15.47 

24.35

15.47 

17.47 

19.86

Magnesium 

(Mg)

4.44 

4.94 

4.52 

8.97 

12.83

11.11 

11.93 

9.46

Sodium

(Na)

5.83 

6.92 

5.83 

15.53 

27.06

17.18 

19.49 

21.97 

16.10 

17.66

24.19 

16.05 

11.79 

18.84 

28.41

23.75 

15.01 

5.96 

15.18 

9.40

Potassium 

(K)

0.15

Bicarbonate 

(HCOJ

3.47 

3.70 

3.47 

4.20 

3.97

5.18 

5.20 

5.08 

7.13 

7.51

6.33 

8.23 

5.72 

7.69 

10.56

4.31 

4.20 

3.59 

4.13 

2.79

Carx>nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

13.93

33.31 

37.06

45.80 

34.77 

26.65 

38.10 

48.93

49.55 

35.60 

13.60 

33.94 

21.65

Chloride 

(Cl)

1.16

2.74 

3.10

4.46 

2.74 

2.12 

3.24 

4.80

5.08 

2.62 

1.07 

3.30 

1.55

Fluoride

(F)

0.05

Nitrate 

(N03)

0.12

Bo

(

p

0
ARKANSAS RIVER BASIN Continued

7-1305. ARKANSAS RIVER BELOW JOHN MARTIN RESERVOIR, COLO. Conti

Chemical analyses, water year October 1961 to September 1962 Co

Date 

of 

collection

May 26-31, 1962

June 3-17.. ....

June 18-19.. .. . 

June 20-21. ....

June 22-23 .....

July 1 .........

July 2-6 .......

July 11-16. ....

July 17-18. ....

July 19-21 .....

Aug. 2-9.......

Aug. 10. .......

Aug. 30-31.....

Sept. 1-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

3,677 

1,650 

12,823 

1,749 

1,353

2,265 

1,222 

4,255 

1,795 

5,752

2,249 

1,380 

6,010 

1,781 

3,291

1,706 

5,990 

5,236 

1,174 

9,568

1,855 

1,545 

2,069 

198 

2,481

168,400

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

--

--

Magnesium 

(Mg)

--

-

Sodium 

(Na)

11.88 

8.61 

6.57 

4.61 

7.22

4.65 

8.35 

5.74 

2.74 

3.52

6.57 

3.78 

5.26 

6.83 

5.22

3.48 

5.74 

4.39 

4.57 

6.74

10.09 

20.45 

10.14 

16.97 

19.62

8.76

Potassium 

(K)

-

Bicarbonate

(Hccg

2.98 

4.21 

3.69 

3.61 

3.85

3.51 

3.52 

3.67 

3.64 

3.31

4.05 

3.80 

3.95 

4.05 

3.75

3.67 

3.82 

2.18 

2.36 

2.84

3.54 

4.52 

3.92 

4.80 

4.59

3.70

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04)

26.65 

19.72 

15.55 

10.62 

16.97

10.95 

18.61 

14.57 

4.56 

10.43

17.03 

9.06 

13.12 

16.43 

12.35

8.60 

14.72 

11.51 

11.51 

16.91

24.15 

42.89 

23.73 

37.68 

41.43

21.08

Chloride 

(Cl)

2.12 

1.58 

1.24 

.79 

1.41

.85 

1.50 

.99 

.31 

.79

1.07 

.56 

.90 

1.24 

.90

.51 

1.02 

.68 

.76 

1.18

1.69 

3,53 

1.86 

3.19 

3.41

1.59

Fluoride 

(F)

-

Nitrate 

(N03)

__

p
ARKANSAS RIVER BASIN Continued 

7-1465. ARKANSAS RIVER AT ARKANSAS CITY, KANS.

LOCATION, At gaging station at bridge on U. S. Highway 166, 0.1 mile downstream from St. Louis-San Fran

Arkansas City, Cowley County, and 5.4 miles upstream from Walnut River.

DRAINAGE AREA. 43,713 square miles, of which 7,607 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: October 1951 to September 1962.

Water temperatures: October 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 3,070 micromhos Jan. 11; minimum daily, 240 mi

Percent sodium: Maximum, 66 May 11-20, Aug. 26-27; minimum, 35 May 30.

Sodium-adsorption-ratio: Maximum, 7.51 May 11-20; minimum, 0.94 May 31. 

EXTREMES, 1951-62.--Specific conductance: Maximum daily, 5,770 micromhos Jan. 16, 1957; minimum daily, 

Percent sodium: Maximum, 79 Apr. 28, 1955; minimum, 27 Aug. 15, 1960.

Sodium-adsorption-ratio: Maximum, 16 Oct. 5, 1953, Aug. 7, 1955; minimum, 0.9 May 31. 1962.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Oklahoma City, Okla.

Chemical analyses, water year October 1961 to September 

Date 

Of 

collection

Oct. 1-2, 1961.. 

Oct. 3-9.. ......

Oct. 10-14..... .

Oct. 15-17.. ....

/

Oct. 30. ........

Nov. 9-15. ......

Dec . 15-16 ......

Runoff 

(acrefeet)

7,279 

17,633 

80 , 271 

12,478 

6,724

14,471 

1,757 

1,809 

6,724 

14,559

98,936 

16,959 

25,269 

11,603 

47,683

12,020 

36,242 

44,269 

6,688 

6.129

Silica

(sicg

ppm

-

Equivalents per million

Calcium 

(Ca)

5 

6 

2 

5 

7

8

4 

8 

5 

3

2 

4 

6 

5 

2

4 

7 

8 

10 

8

Magnesium 

(Mg)

40 

72 

32 

04 

12

30 

64 

20 

84 

36

00 

36 

60 

44 

96

88 

12 

10 

20 

.50

Sodium 

(Na)

6.31 

9.31 

2.61 

7.22 

10.31

11.31 

5.26 

11.61 

7.66 

3.48

1.65 

5.00 

8.66 

6.44 

3.09

6.31 

9.66 

10.48 

13.40 

9.79

Potassium 

(K)

Bicarbonate

(Hccg

3.34 

3.97 

1.51 

3.15 

3.90

4.33 

3.02 

4.26 

3.47 

2.26

1.57 

2.95 

4.03 

3.11 

2.13

3.21 

4.26 

4.36 

4.92 

4.92

Carxinate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.27 

.00 

.07

.00 

.00 

.00 

.27 

.00

.00 

.00 

.27 

.00 

.00

Sulfate 

(S04 )

2.37 

2.87 

.83 

2.04 

2.96

3.44 

1.79 

3.44 

2.71 

1.44

.65 

1.62 

2.69 

2.29 

1.02

1.89 

3.19 

4.21 

4.83 

3.79

Chloride 

(CD

5.98 

9.17 

2.60 

7.05 

10.58

11.85 

5.08 

11.85 

7.33 

3.05

1.44 

4.80 

8.52 

6.21 

2.88

6.07 

9.31 

9.73 

13.82 

9.59

Fluoride

(F)

~

Nitrate 

(N03)

--

3

p
ARKANSAS RIVER BASIN Continued

7-1465. ARKANSAS RIVER AT ARKANSAS CITY, KANS . Contin

Chemical analyses, water year October 1961 to September 1962 C

Date 

of 

collection

Dec. 17-20, 1961

Jan. 1-9, 1962. .

Jan. 28. ........

Jan. 29-31......

Feb. 8-10.......

Feb. 21-28......

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

Apr. 24... ......

Runoff 

(acrefeet)

19,740 

35,520 

24 , 224 

1,888 

22,064

15,467 

5,950 

56 , 053 

25,250 

14,876

15,667 

11,960 

37,468 

24,167 

1,216

25,831 

26,698 

30,436 

27,055 

25,071

7,736 

3,094 

16,816 

19,815 

13,250

9,316 

31,317 

26 , 975 

176,628 

52,620

Silica 

(S102) 

ppm

17.0

21.0 

18.0

Equivalents per million

Calcium 

(Ca)

6 

8 

6.09 

12 

9

8 

5 

2 

3 

4

6 

7 

6.09 

9 

9

8 

9 

6.54 

9

7

7 

6 

6 

4.74

7

8 

3 

1 

1 

2

Magnesium 

(Mg)

32 

10 

3.13 

40 

40

70 

72 

48 

08 

40

20 

56 

2.39 

50 

30

80 

.20 

2.80 

30 

84

32 

00 

68 

2.47 

.40

.20 

.28 

.56 

.56 

.24

Sodium 

(Na)

7.09 

8.96 

10.92 

17.01 

12.31

11.09 

6.39 

2.09 

2.87 

5.13

7.44 

9.14 

10.27 

12.48 

15.92

11.18 

11.48 

12.14 

13.01 

11.92

11.61 

8.53 

9.87 

12.44 

14.44

12.70 

4.00 

.83 

1.22 

2.04

Potassium 

(K)

Bicarbonate 

(HCOj)

3.61 

4.39 

4.56 

5.11 

4.85

4.36 

2.79 

1.74 

1.93 

2.59

3.08 

3.41 

4.06 

4.13 

3.05

4.06 

4.33 

4.16 

3.87 

3.28

2.98 

2.82 

3.11 

3.44 

3.70

3.25 

2.29 

1.31 

1.31 

1.61

Carbonate 

(C03)

0.00 

.00 

.00 

.47 

.13

.33 

.33 

.00 

.00 

.00

.40 

.67 

.20 

.53 

.00

.53 

.20 

.27 

.40 

.27

.27 

.40 

.27 

.00 

.00

.27 

.07 

.00 

.00 

.00

Sulfate

(S04 )

3.02 

3.64 

5.00 

6.45 

5.16

4.37 

3.19 

1.00 

1.42 

2.37

3.71 

4.58 

5,73 

6.04 

5.25

4.79 

5.83 

6.56 

6.87 

5.73

5.31 

3.96 

4.27 

4.62 

4.89

4.41 

1.27 

.40 

.44 

.69

Chloride 

(Cl)

6.77 

9.03 

10.44 

17.35 

11.57

10.72 

5.78 

1.83 

2.62 

4.57

6.43 

8.04 

8.60 

11.28 

16.93

10.58 

10.30 

10.30 

11.14 

10.49

10.38 

7.33 

8.89 

11.57 

13.26

12.98 

3.67 

.68 

1.04 

1.97

Fluoride 

(F)

0.02

.02 

.02

Nitrate 

(N03)

0.09

.13

.10

B

0
LOWER MISSISSIPPI RIVER BASIN

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ARKANSAS RIVER BASIN Continued 

7-1525. ARKANSAS RIVER AT RALSTON, OKLA.

LOCATION. At gaging station at bridge on State Highway 18 at Ralston, Pawnee County, 2 miles downstream 

Grayhorse Creek.

DRAINAGE AREA. 54,465 square miles, of which 7,615 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: January 1950 to September 1962.

Water temperatures: January 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,340 micromhos May 7; minimum daily, 265 microm

Percent sodium: Maximum, 69 Sept. 22; minimum, 31 Nov. 2-6, July 10.

Sodium-adsorption-ratio: Maximum, 7.23 June 15-25; minimum, 0.86 July 10. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 7,510 micromhos Sept. 14, 1955; minimum daily, 

Percent sodium: Maximum, 87 May 1-2, 1957; minimum, 21 Aug. 14, 1961.

Sodium-adsorption-ratio (1951-62): Maximum, 25 May 1-2, 1957; minimum, 0.6 Aug. 14, 1961.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Oklahoma City, Okla.

Chemical analyses, water year October 1961 to Septembe

Date 

of 

collection

Oct. 1-9, 1961..

Oct. 16-18......

Oct. 19-20......

Jan. 1-9, 1962.. 

Jan. 10-20......

Runoff 

(acrefeet)

83,490 

16,860 

459,372 

72,179 

24,813 

81,316 

9,362

570,843 

66,050 

41 , 574 

121,150 

229,091 

39,174 

85,960

114,982 

82,945 

112,754 

68,311 

73,386 

65,455

Silica 

(Si02) 

ppm

15.0 

11.0

Equivalents per million

Calcium 

(Ca)

4.39 

5 

2 

3 

5 

6 

7

2 

3 

5

7 

3 

5

7

8 

7 

5 

7 

6.09 

9

Magnesium 

(Mg)

1.81 

40 

36 

60 

28 

92 

00

08 

56 

36 

10 

88 

40 

12

10 

44 

96 

80 

2.30 

50

Sodium 

(Na)

8.61 

5.61 

1.13 

2.74 

4.79 

7.31 

7.09

.91 

2.91 

4.79 

5.87 

3.13 

5.39 

7.87

8.61 

6.87 

5.57 

8.79 

9.40 

10.92

Potassium 

(K)

Bicarbonate 

(HCOj)

3.41 

3.21 

1.84 

2.69 

3.74 

4.20 

4.03

1.80 

2.75 

3.97 

4.20 

2.62 

3.77 

4.49

4.92 

4.49 

3.84 

4.59 

5.05 

4.88

Carbonate 

(C03)

0.27 

.00 

.00 

.00 

.00 

.00 

.40

.00 

.00 

.00 

.40 

.13 

.00 

.27

.33 

.27 

.13 

.20 

.00 

.47

Sulfate 

(SO,)

2.42 

1.15 

.50 

.90 

1.39 

2.08 

2.04

.35 

.96 

1.42 

1.85 

1.08 

1.52 

2.21

2.85 

2.64 

2.06 

2.77 

3.35 

4.06

Chloride 

(Cl)

8.60 

6.63 

1.13 

2.76 

4.94 

7.96 

7.62

.85 

2.76 

4.74 

6.54 

3.16 

5.50 

8.04

8.60 

6.91 

5.50 

9.03 

9.31 

11.00

Fluoride

(F)

0.02 

.02

Nitrate

(Ncg

0.06 

.07

B

0
Jan. 21-28, 1962 

Jan. 29-30......

June 11-12. .....

July 1-3. .......

July 16 .........

55,934 

65,455

21,818

59,504

82,211

105,316

67,041

55,418

49,785

47,207

5,157

220,165

136,859

44,628

98,662

37,686

17,691

78,724

10.711

14.0

21.0

8 557

6.29

87778752234565631

2.103

70 

36

56

40

40

30

92

32

48

44

68

60

68

16

80

12

52

84

12

11.05 

4.92

3.39

6.09

9.79

9.53

3.26

.15

4.43 

2.75

1.90

2.36

2.69

3.97

4.26

5.11

3.25

3.51

1.97

1.64

2.36

3.02

3.08

2.26

.53 

.40

.40

.40

.40

.00

.00

.33

.13

.00

.40

.13

.00

.00

.00

.13

.20

.00

.00

.13

.00

3.79 

2.06

3.96

4.37

4.06

3.85

2.10

.62

.85

1.50

2.94

3.46

3.21

1.46

.94

1.10

11.00 

5.08

2.48

4.29

6.49

7.90

8.60

9.73

10.72

11.28

12.69

13.54

13.68

7.19

1.47

3.33

5.92

11.85

9.25

9.03

.85

2.20

3.02
ARKANSAS RIVER BASIN Continued

7-1525. ARKANSAS RIVER AT RALSTON, OKLA. Continued 

Chemical analyses, water year October 1961 to September 1962 C

Date 

of 

collection

July 17-22, 1962

Aug. 28-31......

Sept. 11-17. ....

Sept. 22........

Sept. 27-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

104,787 

52,506 

35,804 

18,843 

59,802 

31,894 

24,020

19,676 

47,508 

26,047 

19,105 

57,878 

47,123

54,464 

8,132 

11,623 

95,365 

54,490

5,008,000

Silica 

(Si02) 

ppra

-

Equivalents per million

Calcium

(Ca)

2 

3 

2 

3 

3 

4 

3

3 

5 

6 

5 

4 

4

3 

3 

4 

2 

3

4

Magnesium

(Mg)

40 

08 

52 

60 

88 

60 

48

68 

48 

72 

28 

96 

24

56 

12 

12 

88 

04

70

Sodium

(Na)

2.13 

3.31 

2.74 

6.13 

6.13 

8.31 

5.44

6.53 

9.22 

9.87 

7.26 

5.96 

5.31

3.35 

3.44 

8.96 

1.61 

3.83

5.16

Potassium 

(K)

Bicarbonate

(Hccg

1.80 

2.03 

1.90 

2.23 

2.33 

2.69 

2.29

2.33 

3.21 

3.74 

2.79 

2.75 

2.49

2.36 

2.10 

2.46 

2.03 

2.07

2.87

Carbonate 

(C03)

0.00 

.07 

.07 

.07 

.13 

.00 

.00

.00 

.13 

.13 

.13 

.13 

.13

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

0.85 

1.19 

.85 

1.52 

1.50 

1.52 

1.50

1.64 

2.60 

3.25 

2.50 

2.17 

1.79

1.23 

1.15 

1.83 

.77 

1.06

1.78

Chloride

(CD

1.86 

3.10 

2.43 

5.92 

6.07 

8.69 

5.13

6.21 

8.75 

9.45 

7.11 

5.87 

5.13

3.30 

3.30 

8.80 

1.69 

3.72

5.10

Fluoride

(F)

--

--

Nitrate

(N03)

"

-

B
ARKANSAS RIVER BASIN Continued 

7-2505. ARKANSAS RIVER AT VAN BUREN, AJIK.

LOCATION. At gaging station at bridge on U. S. Highway 64 and 71, at Van Buren, Crawford County, 1.3 

downstream from Poteau River, and at mile 353.4.

DRAINAGE AREA. 150,483 square miles, of which 22,241 square miles is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1962.

Water temperatures: October 1945 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,440 micromhos July 4; minimum daily, 268 m

Percent sodium: Maximum, 63 Aug 17-21; minimum, 41 June 7-9.

Sodium-adsorption-ratio: Maximum, 4.96 Aug. 17-21; minimum, 1.73 Oct. 10-31. 

EXTREMES, 1945-62. Specific conductance: Maximum daily, 8,980 micromhos, Apr. 1, 1954; minimum daily

Percent sodium (1945-61): Maximum, 80 Oct. 21-24, 1946, Aug. 3-4, 1956; minimum, 18 July 22, 1959. 

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

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 10-31, 1961

Feb. 1-8, 1962. .

Sept . 2-6 .......

Runoff 

(acrefeet)

1,925,236 

2,440,780 

726 , 744 

104-, 727 

209,058

390,764 

179,464 

78,942 

85 , 964

Silica 

(Si02) 

ppm

12.0 

9.2 

8.9 

14.0 

14.0

18.0 

17.0 

15.0 

16.0

Equivalents per million

Calcium 

(Ca)

1.90 

1.55 

1.30 

2.15 

2.40

2.25 

2.10 

2.99 

2.84

Magnesium 

(Mg)

0.56 

.76 

.62 

.82 

1.07

.82 

.81 

.99 

1.07

Sodium 

(Na)

1.91 

1.96 

1.96 

2.48 

3.70

2.22 

3.26 

7.00 

5.66

Potassium 

(K)

0.08 

.10 

.10 

.08 

.08

.08 

.09 

.13 

.11

Bicarbonate

(Hccg

1.92 

1.61 

1.62 

1.97 

2.20

2.07 

1.95 

2.62 

2 A3

Carbonate 

(CO,)

Sulfate 

(S0«)

0.67 

.71 

.50 

.94 

1.19

.92 

.96 

1.64 

1.54

Chloride 

(Cl)

1.78 

1.81 

1.78 

2.60 

3.78

2.26 

3.30 

6.77 

5.50

Fluoride

(F)

0.02 

.02 

.02 

.02 

.02

.03 

.02 

.03 

.03

Nitrate

(N03)

0.06 

.07 

.02 

.08 

.04

.08 

.07 

.05 

.05
ARKANSAS RIVER BASIN Continued

7-1610. CIMARRON RIVER AT PERKINS, OKLA.

south ol Perkins, Payne County, 

intributing.

LOCATION. At gaging station at bridge on State Highway 40, 1 mile

from Wildhorse Creek.

DRAINAGE AREA. 17,852 square miles, of which 4,926 square miles is probably 

RECORDS AVAILABLE. Chemical analyses: October 1952 to September 1962.

Water temperatures: October 1952 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 14,600 micromhos June 8; minimum daily, 543 mic

Percent sodium: Maximum, 90 June 8, Sept. 21-30; minimum, 58 Oct. 10-14.

Sodium-adsorption-ratio: Maximum, 47.50 June 8; minimum, 3.30 Oct. 10-14. 

EXTREMES, 1952-62. Specific conductance: Maximum daily, 32,400 micromhos Mar. 18, 1957;

Percent sodium: Maximum, 94 Feb. 18-20, 1955, Apr. 1-2, 1957; minimum, 50 June 8, 1961.

Sodium-adsorption-ratio: Maximum, 98 Feb. 18-20, 1955; minimum, 1.5 Oct. 5-7, 1955.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated, 

available in district office at Oklahoma City, Okla.

1.5 m

daily, 

Chemical analyses, water year October 1961 to Septembe

Date 

of 

collection

Oc . 1-4, 1961.. 

Oc . 5-9... .....

Oc . 17........ .

Oc . 18-20. .....

No . 2-3 ........

No . 7-15.......

No . 16-22......

No . 23-24......

No . 25-26......

De . 1-14. ......

De . 15-22......

De . 28-29......

Runoff 

(acrefeet)

11,441 

6,407 

95,683 

4,899 

1,785 

3,939

9,207 

839 

65,851 

40,145 

7,220

26 , 366 

39,570 

7,795 

5,355 

8,283

24,520 

18,724 

1,888 

6,823 

3,705

Silica 

(Si02) 

ppm

18.0 

15.0

Calcium 

(Ca)

5 

6.29 

2 

4 

5 

9

11 

9

4 

2 

4

6.54 

9 

11 

11 

13

13 

12 

11

14 

17

Equivalents per million

Magnesium 

(Mg)

36 

3.54 

76 

16 

92 

90

40 

90 

50 

72 

90

3.29 

30 

50 

40 

40

60 

00 

.80 

.60 

.36

Sodium 

(Na)

12.53 

23.41 

3.87 

6.87 

10.74 

22.71

34.15 

34.15 

9.70 

5.26 

11.53

38.41 

25.23 

60.90 

41.80 

44.81

51.33 

41.63 

60.47 

75.26 

95.70

Potassium 

(K)

Bicarbonate 

(HCO3)

2.85 

4.16 

1.74 

2.43 

3.15 

4.85

4.65 

2.29 

2.26 

1.67 

1.84

4.03 

3.67 

4.49 

5.05 

5.31

5.70 

5.05 

2.23 

4.72 

5.69

Carbonate

(ccg

0.00 

.33 

.03 

.00 

.27 

.13

.27 

.13 

.00 

.00 

.07

.13 

.00 

.13 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

2.60 

5.00 

1.27 

2.19 

2.87 

5.04

6.77 

7.18 

2.19 

1.27 

2.81

5.93 

5.45 

7.08 

7.50 

8.22

8.24 

6.83 

9.26 

10.20 

11.60

Chloride

(Cl)

12.41 

23.62 

3.61 

6.43 

10.38 

22.57

33.85 

34.42 

9.73 

5.02 

11.71

38.08 

25.39 

60.65 

40.62 

44.57

50.78 

41.75 

60.65 

74.76 

95.63

Fluoride

(F)

0.02 

.01

i

Nitrate

(N03)

0.04

B
Dec. 30-31, 1961 

Jan. 1-10, 1962.

Mar. 15-22.... . .

Apr. 16-18. .....

Apr. 29-30......

3,300 

15,293

5,447

3,451

14.60 

12.00

14.20

11.00

13.50

8.60

53.94 

55.25

51 33

80.91

51 33

00 QO

5.90

3.25

6.69

5.24

3.21

3.90

4.69

4.92

4.26

1.93

5.18

2.16

1.80

1.93

4.82

4.10

3.28

4.59

4.49

4.33

4.20

2.49

3.84

4.33

3.34

3.41

4.00

4.26

3.25

4.49

3.54

.00

.00

.00

.00

.33

.27

.33

.13

.07

.00

.00

.00

.00

.00

.00

.27

.40

.00

.27

.40

.47

.20

.20

.20

.40

.40

.27

.13

.20

.00

.00

8.95

9.60

9.79

10.04

7.39

9.16

8.33

9.58

10.83

9.37

10.14

12.22

12.18

10.78

10.33

9.54

6.91

9.68

8.54

8.95

7.39

3.02

7.08

9.37

5.83

8.33

6.56

8.33

5.73

8.12

5.52

53.60

54.16

47.96

53.60

51.34

73.35

48.52

56.42

74.76

55.86

56.42

83.22

92.81

73.91

62.06

59.24

36.67

58.68

77.58

56.98

40.90

11.28

43.73

80.40

27.65

50.78

37.24

53.03

35.26

46.55

30.47
ARKANSAS RIVER BASIN Continued

7-1610. CIMARRON RIVER AT PERKINS, OKLA. Continued 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

May 2-5 , 1962 . . .

May 29. .........

May 30-31 .......

June 7 ..........

July 1 ..........

July 10-11......

July 13.........

Runoff 

(acrefeet)

i

4,356 

3,880 

3,374 

2,402 

1,089 

4,145

5,744 

1,129 

14,477 

6,506 

6,268

4,542 

3,967 

88,860 

31,736 

14,003

7,140 

20,216 

6,109 

1,595 

14,489

4,800 

5,574 

6,188 

3,888 

3,431

4,919 

7,053 

3,903 

1,656 

1.404

Silica 

(Si02) 

ppm

17.0

~

Calcium 

(Ca)

14 

16 

8.38 

13 

7 

3

3 

4 

2 

5 

11

12 

15 

3 

2 

3

5 

8 

9 

9 

9

8 

10 

5 

4 

9

10 

9 

7 

8 

12

Equivalents per million

Magnesium 

(Mg)

00 

00 

5.10 

30 

30 

36

24 

84 

80 

44 

00

60 

40 

00 

24 

72

00 

70 

.60 

30 

90

40 

40 

84 

72 

30

00 

.40 

.08 

.00 

.50

Sodium 

(Na)

62.64 

87.87 

67.43 

57.42 

17.92 

7.26

4.74 

11.70 

4.13 

14.18 

52.20

78.74 

131.81 

8.96 

3.61 

6.18

10.09 

47.42 

46.98 

60.90 

47.42

37.76 

53.07 

26.19 

16.88 

42.37

51.77 

45.24 

29.54 

36.32 

63.51

Potassium 

(K)

0.19

Bicarbonate 

(HCOa)

3.28 

4.26 

4.46 

4.56 

2.82 

2.03

2.23 

2.56 

2.00 

2.43 

2.13

2.23 

2.28 

1.84 

1.70 

1.97

2.33 

3.15 

3.44 

2.29 

3.02

2.13 

2.10 

2.39 

2.26 

2.69

3.08 

3.51 

2.88 

2.82 

3.08

Carbonate 

(C03)

0.40 

.00 

.13 

.00 

.40 

.07

.00 

.27 

.00 

.40 

.33

.13 

.27 

.13 

.07 

.00

.00 

.07 

.27 

.13 

.40

.13 

.27 

.00 

.07 

.13

.00 

.27 

.07 

.00 

.53

Sulfate 

(S04 )

10.83 

7.91 

9.16 

9.12 

5.62 

1.46

1.23 

2.46 

.90 

3.39 

8.54

8.64 

10.04 

1.52 

1.00 

2.29

3.16 

5.31 

6.45 

6.45 

7.39

6.66 

7.39 

3.54 

3.02 

5.93

5.21 

5.21 

3.75 

4.83 

5.83

Chloride 

(Cl)

62.06 

91.68 

67.70 

56.98 

16.36 

7.05

4.51 

11.23 

4.01 

13.40 

52.19

80.40 

134.56 

8.46 

3.10 

5.64

9.09 

47.39 

46.55 

61.50 

46.55

37.24 

53.60 

26.09 

16.22 

42.88

53.60 

45.70 

29.90 

36.67 

64.32

Fluoride

(F)

0.02

Nitrate 

(N03)
LOWER MISSISSIPPI RIVER BASIN

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f- IH in H CO

 i-t H

m t~ 01 i i

1 1 1 0 CM

 3* CD CO rH H

0,0,0,0,0, 

0) <0 <0 <0 Q}

to to KI m KI

O CM CO HOI

CO COCO CO tO 00 0 0 

ID CO <D O *f 

CM CO O! CM^J<

CM in CD CM to 

H

01 O H Ol CO 

Ol CM f- O H

O O *J< CO H 

H CM CM *J< CO

Ol CO*J< O O

CO O H to 00

in H ^ to oo

*j< m oo *j< H

H^CM 

H

H f 10 Ol T("

g

oo o o CM^J< CO fCMOO CM to

tHCO *J< f- CO

1 I 1 1 1 

1 1 1 1 1

1 1 1 1 1

01 CO 00 00 0

tD CM f- O lO

H

oo o m oo oo

O H*J< to to

CM m to t» ^

O O f- O O 

O 00 0 0

t- *J< f-^J< CO 

Ol f- to 00 CM

H CO CO CM CM

 *f CO 'J" f- to

H

O O O *J< O

m oooo t~ *c

^ 00 O CM tD 

H H

1 1 1 1 1 1 1 1 1 1

CM^J< CM CM O 

O ^ lO ^ CM 

tD CM CO lO ^

CM

H H -CO 

1 1 1 m f- o H CM

H HCM CM CM

0,0,0,0,0, 

(V Q} Q} Q} Q} m mmmm

o

00

o

0

o

 *

o

*J<

*J<

H

CO 

00

O 

01

f00

H

CO

t» 

CM

CO

0 

H

CM

1

1 

1

1

H

H

lO 

00

 *

1

1

CO

o

CO

to*J<

CO

H 

t~

t1

1

O 

0

to

COf01

tal or

weighted

H

792-031 O-65 5
ARKANSAS RIVER BASIN Continued

7-2450. CANADIAN RIVER NEAR WHITEFIELD, OKLA.

LOCATION. At gaging station at bridge on State Highway 2, 0.8 mile north of Whitefield, Haskell County, 

DRAINAGE AREA. 47,576 square miles, of which 9,700 square miles is probably noncontributing.

RECORDS AVAILABLE. Chemical analyses: September 1944 to February 1945, September 1946 to September 1962

Water temperatures: September 1944 to February 1945, September 1946 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,910 micromhos May 30; minimum daily, 239 micr

Percent sodium: Maximum, 60 Aug. 21-31; minimum, 33 Apr. 1-3.

Sodium-adsorption-ratio: Maximum, 5.41 May 30-31; minimum, 1.12 Apr. 1-3. 

EXTREMES, 1944-45, 1946-62. Specific conductance: Maximum daily, 22,900 micromhos Nov. 11, 1956; minimu

Percent sodium: Maximum, 80 Nov. 6-14, Dec. 21-23, 1947; minimum, 21 Mar. 5, 1959.

Sodium-adsorption-ratio (1951-62): Maximum, 33 Nov. 11, 1956; minimum, 0.4 Mar. 5. 1959.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Oklahoma City, Okla.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-8, 1961.. 

Oct. 9-10.......

Oct. 11-20......

Oct. 21-31......

Nov. 1-3.. ......

Nov . 29-30 ......

Dec, 20-22......

Jan. 1-6, 1962. . 

Jan. 7-20. ......

Runoff 

(acrefeet)

82,576 

5,355 

93,699 

25,069 

16,316

19,617 

128,436 

277,686 

18,347 

32,350

58,489 

73,468 

24,653 

44,152 

20,628

40,957 

41,950 

22,850 

23,683 

51,955

Silica 

(Si02) 

ppm

9.4 

12.0

Equivalents per million

Calcium 

(Ca)

2 

4 

3 

2.94 

4

2 

4 

2 

3 

4

3 

2 

4 

3 

3

3 

4 

6 

6 

4.54

Magnesium 

(Mg)

96 

40 

72 

1.97 

84

24 

36 

12 

48 

76

04 

36 

04 

28 

68

.04 

.20 

.40 

.72 

2.63

Sodium 

(Na)

3.13 

4.96 

3.57 

4.61 

5.52

1.91 

3.87 

1.35 

3.09 

3.96

2.48 

2.04 

4.31 

3.18 

4.22

2.61 

3.44 

5.09 

5.96 

7.00

Potassium 

(K)

Bicarbonate 

(HCOj)

1.84 

2.62 

2.36 

3.15 

2.75

1.61 

2.62 

1.54 

2.23 

2.92

1.84 

1.61 

2.39 

2.20 

2.00

2.03 

2.72 

3.84 

3.87 

3.80

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.13

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.27 

.33

Sulfate 

(S04 )

0.71 

1.08 

1.12 

1.25 

1.04

.44 

1.44 

.52 

.90 

1.44

.96 

.52 

1.06 

.81 

.75

.75 

1.12 

2.21 

1.75 

1.71

Chloride 

(CD

3.55 

5.64 

3.81 

5.02 

6.43

2.12 

4.18 

1.41 

3.44 

4.37

2.71 

2.26 

4.88 

3.44 

5.13

2.88 

3.81 

5.42 

6.77 

8.32

Fluoride 

(F)

0.02 

.02

Nitrate

(Ncg

0.07 

.04

B

p

0
LOWER MISSISSIPPI RIVER BASIN

i" m o i-io

00 00 00 00 00

OO 00 00 O 

o H o » in in o in oo o

O CO CM CO CO

00 t~ 00 CO 00

O O H Ol H

in ^< oo H 01

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CO H O 00 O

00 00 00 t^ 00

o o to co ^>

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H CO tO * *

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S

o in 01 oo 

O M^f M

t^ H oo in t^

H

t~ 00 00 00 00

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Ol O) Ol Ol CO

in CM t» >* o

fl M H M CO CO CO M M CO CO CO M H H M CO M H

CO M O Ol t» 00 Ift rt O g H 00 Ol ^> CO 00 H M O 00 CO Ol CO tO * * Ol tO CO t» o 01 t»u> oo * t» <o co t» to m o in M o 01 co co oim H ^< o * oo o M t»

H Ol O in 00 Ol 00 O * tO CMO1O1HOO OlCO^IHOO t» 00 Ol CO Ol H tO N CO in

tot^mOH OCMOO^*^* t^t^ooin^* tooiinoioi

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en (o co in (o

: : i : :

1 1 1 1 1 1 1 1 1 1

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oo o en oo o

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to ^* m co ^* 

n en m CM oo

H H H

in M o co oo

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Ol tO H Ol tO

H

1 1 1 1 1 

1 1 1 1 1

1 1 1 1 1 

1 1 1 1 1

1 1 1 1 1 

1 1 1 1 1

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H H H

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n 01 M o in 

m t- NO o

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Ol O CO O) Ol 

CO O 00 Ift t^

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t» CO M H M

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IN tl in e

D t^ H CO

o oo m H

m m « to H c

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n o in

COincONCO H^NlOt^

r- H H oo in

M CO O H O

co to o co m

Ol^OIOOtO OOO1OOOO1 TjttOOOOtO tOOtOO) 0004^*000

oiomoiin CMco^^m OHOOOO^ cnoin nnoot^to

i i i i i

i i i i i

to oo CM in co t» 01 to N co co oo M o to oo 01 co o to

.__ .. - -oooio HMint^to in H in H M

CO H tO Olo'oOMO 00 CO O 00 O

in 41 n m co to m f H n oo IH t» oitooooio HMint^to in H in H co^t^ t^cMininw cotoHoo^* in^^*^*^* totomt^m

.

 M CM CO OMM O M M CO O H H M CM CM -O t» Ol H

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a a a a a a a& a i, C, C C, i, it i, ^ i, i, i, ^' ^ >, >, t>, >, t>, t>, c c

tdcjcjciej 0000CJ eicJcJcJDi 0,0,0,0,0, OiOiCJeicJ c4cicJ33 ^^^^^ fefefefeS SEES* <<<<< <<SSS
ARKANSAS RIVER BASIN Continued

7-2450. CANADIAN RIVER NEAR WHITEFIELD, OKLA. Con

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

June 4-10, 1962.

June 13-20......

July 1-12.. .....

July 13.. .......

July 14-17... .. .

July 27-30. .....

July 31. ........

Aug. 1-2.... ....

Sept. 3-4.......

Sept. 19-21. ....

Sept. 27-30.....

weighted 

average

Runoff 

(acrefeet)

137,593 

109,884 

151,045 

59,464 

9,203

21,322 

24,159 

49,317 

8,132 

32,807

5,885 

10,742 

58,909 

41,177 

4,403

4,939 

3,761 

69,715 

11,326 

4,865

5,728 

3,055 

42,153 

27,769 

21,283

14,995 

32,924 

42,585 

19,041

3,396,000

Silica

(sicg

ppm

14.0

16.0 

11.0

--

Equivalents per million

Calcium 

(Ca)

3 

3 

2 

3 

4

3

5 

3.34 

3

1

3 

4

1 

1 

2

2 

3 

6 

5.09 

6

2 

4 

2 

1.85 

2

3

1 

3 

3

3

Magnesium 

(Mg)

04 

12 

80 

36 

68

00 

32 

1.97 

52 

72

04 

00 

52 

68 

52

.64 

.44 

84 

1.15 

28

.36 

.20 

.88 

.82 

12

28 

76 

08 

56

.49

Sodium

(Na)

2.57 

2.52 

1.91 

2.22 

3.74

1.91 

4.52 

4.92 

3.05 

1.61

3.44 

4.74 

1.00 

1.65 

3.37

3.61 

4.70 

8.83 

9.18 

9.35

2.35 

5.09 

3.61 

3.18 

2.04

3.35 

1.78 

2.83 

3.26

3.19

Potassium 

(K)

0.17 

.10

~

Bicarbonate 

(HCO,,)

2.16 

2.26 

2.03 

2.49 

2.56

1.70 

2.43 

2.95 

2.36 

1.11

1.84 

2.46 

1.31 

1.21 

1.48

1.61 

1.90 

3.02 

2.82 

3.54

1.93 

2.43 

1.77 

1.51 

1.51

2.03 

1.25 

1.97 

2.07

2.14

CarDonate 

(C03)

0.00 

.00 

.00 

.00 

.27

.00 

.20 

.00 

.00 

.00

.00 

.07 

.00 

.00 

.00

.00 

.00 

.07 

.07 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00

.02

Sulfate 

(S04 )

0.75 

.92 

.81 

.81 

1.79

.94 

2.85 

2.27 

.94 

.42

.83 

.92 

.29 

.31 

.42

.56 

.65 

4.96 

3.54 

2.50

.65 

1.35 

.90 

.71 

.56

1.27 

.35 

1.29 

1.67

1.01

Chloride 

(Cl)

2.68 

2.48 

1.86 

2.26 

3.78

2.26 

4.37 

4.94 

3.27 

1.81

3.81 

5.30 

.93 

1.83 

4.20

4.06 

5.59 

7.62 

8.46 

9.59

2.14 

5.50 

3.81 

3.53 

2.09

3.33 

1.95 

2.65 

3.10

3.52

Fluoride

(F)

0.02

.04 

.02

-

Nitrate 

(N03)

0.06

.06 

.04

-

B
RED RIVER BASIN

7-3316. RED RIVER AT DENISON DAM, NEAR DENISON, TE

LOCATION (revised). At gaging station immediately below Denison Dam, 1.7 miles upstream from Sand Creek

DRAINAGE AREA. 39,719 square miles, of wbich 5,936 is probably noncontributing. 

RECORDS AVAILABLE. Chemical analyses: May 1944 to September 1962.

Water temperatures: October 1945 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,250 micromhos Oct. 3; minimum daily, 1,710 m

Percent sodium: Maximum, 60 Nov. 1-30, Dec. 1-31; minimum, 54 June 1-30.

Sodium-adeorption-ratio: Maximum, 6.32 Nov. 1-30; minimum, 5.15 Aug. 1-31. 

EXTREMES, 1944-62. Specific conductance: Maximum daily, 3,520 micromhos Aug. 14, 1944; minimum daily, 

Percent sodium: Maximum, 66 Dec. 1-31, 1958; minimum, 31 Nov. 1-10, 1945. 

REMARKS. Sodium (Na) and potassium (K) values are calculated and reported as sodium (Na). Records of s

district office at Austin, Tex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961.

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

Jan. 1-31, 1962.

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

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

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

296,001 

270,208 

262,982 

184,709 

102,022 

76 , 737

118,949 

75,322 

1,121,058 

278,108 

266,733 

224,450

3,277,000

Silica 

(Si02) 

ppm

9.9 

7.9 

8.6 

8.1 

8.7 

8.5

7.4 

8.8 

7.8 

11.0 

11.0 

11.0

8.9

Equivalents per million

Calcium 

(Ca)

6.04 

5.84 

5.79 

5.64 

5.59 

5.59

5.44 

5.54 

5.49 

5.44 

5.39 

4.99

5.56

Magnesium 

(Mg)

3.04 

2.80 

2.80 

2.80 

2.80 

2.71

2.63 

2.63 

2.96 

2.88 

2.63 

2.47

2.83

Sodium 

(Na)

12.92 

13.14 

12.79 

11.75 

11.16 

10.96

10.83 

10.61 

9.79 

10.83 

10.31 

10.35

11.00

Potassium 

(K)

Bicarbonate

(Hccg

2.13 

2.15 

2.11 

2.20 

2.21 

2.34

2.33 

2.36 

2.16 

2.36 

2.47 

2.28

2.22

Carbonate 

(C03)

Sulfate 

(SO,)

6.58 

6.58 

6.27 

6.04 

6.04 

5.95

5.66 

5.66 

5.41 

5.70 

5.29 

5.33

5.77

Chloride 

(CD

13.26 

12.98 

12.98 

11.90 

11.28 

10.95

10.86 

10.72 

10.66 

11.06 

10.49 

10.16

11.36

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02

.02 

.02 

.02

--

Nitrate

(Ncg

0.01 

.05 

.01 

.01 

.01 

.01

.01 

.02 

.02 

.02 

.05 

.02

0.02
PART 8. WESTERN GULF OF MEXICO BASINS

SABINE RIVER BASIN 

8-305. SABINE RIVER NEAR RULIFF, TEX.

LOCATION. At gaging station at bridge on State Highway 12, 2.4 miles north of Ruliff, Newton County, 4.2 

bridge, 4.2 miles downstream from Cypress Creek, and at mile 40. 

DRAINAGE AREA. 9,329 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946, October 1947 to September 1962.

Water temperatures: October 1947 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 482 micromhos Sept. 24; minimum daily, 72 microm

Percent sodium: Maximum, 73 Oct. 10, Sept. 11-30; minimum, 55 Dec. 24-31.

Sodium-adsorption-ratio: Maximum, 3.56 July 11-16; minimum, 1.08 Dec. 24-31. 

EXTREMES, 1945-46, 1947-62. Specific conductance: Maximum daily, 774 micromhos Dec. 26, 1948; minimum d

Percent sodium: Maximum, 86 Dec. 26-27, 1948; minimum, 14 Sept. 18-22, 27, 1958.

REMARKS. Sodium (Na) and potassium (K) values are calculated and reported as sodium. Records of specifi

office at Austin, Tex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-9, 1961..

Jan. 1, 1962....

Jan. 9...... ....

Jan. 21-31......

Runoff 

(acrefeet)

50,126 

6,288 

45,917 

33,404 

36,436 

127,696

41,931 

106,834 

118,489 

36,298 

645,659 

479,048

50,777 

89,058 

158,678 

26,380 

214 , 233 

333.818

Silica 

(Si02) 

ppm

16.0 

17.0 

17.0 

18.0 

17.0 

11.0

9.8 

12.0 

18.0 

10.0 

11.0 

10.0

10.0 

10.0 

7.4 

10.0 

14.0 

12.0

Equivalents per million

Calcium 

(Ca)

0.37 

.44 

.45 

.46 

.39 

.20

.17 

.27 

.35 

.34 

.17 

.27

.20 

.36 

.17 

.32 

.39 

.35

Magnesium 

(Mg)

0.23 

.26 

.29 

.27 

.25 

.14

.09 

.17 

.23 

.12 

.10 

.12

.10 

.14 

.15 

.12 

.30 

.26

Sodium 

(Na)

1.04 

1.96 

1.17 

1.35 

1.31 

.74

.44 

1.00 

1.13 

1.04 

.41 

.48

.44 

.65 

.44 

.83 

1.04 

.87

Potassium 

(K)

Bicarbonate

(Hccg

0.46 

.49 

.56 

.56 

.49 

.20

.16 

.23 

.23 

.33 

.13 

.16

.20 

.33 

.13 

.34 

.28 

.23

Carbonate 

(C03)

Sulfate 

(S04 )

0.20 

.29 

.23 

.21 

.21 

.13

.09 

.25 

.27 

.19 

.17 

.23

.17 

.23 

.17 

.29 

.42 

.40

Chloride 

(Cl)

0.96 

1.86 

1.13 

1.30 

1.21 

.71

.45 

.96 

1.18 

.96 

.37 

.45

.37 

.56 

.39 

.62 

1.02 

.82

Fluoride

(F)

0.03 

.01

Nitrate

(Ncg

0.01 

.00 

.01 

.01 

.02 

.02

.01 

.02 

.01 

.01 

.01 

.01

.01 

.03 

.07 

.03 

.01 

.01

B
Feb. 1-22, 1962. 

Feb. 23-24......

Apr. 11-14......

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

Apr. 16-29......

Sept. 21-30.....

Total or 

weighted 

average

530,618 

28,205

69,302

38,971

13,726

179,552

458,777

77 , 782

100,092

90,922

56 , 093

26 , 515

29,673

38,876

41 , 772

5,429,000

13.0 

19.0

14.0

14.0

15.0

15.0

15.0

15.0

16.0

9.9

12.0

14.0

14.0

13.0

11.0

8.8

12.0

.35 

.47

.45

.46

.50

.55

.40

.50

.55

.50

.22

.55

.55

.29

.34

.40

.70

.35

.50

.40

.32

.34

.45

0.35

.26 

.41

.27

.35

.34

.39

.38

.42

.39

.15

.15

.37

.39

.21

.18

.21

.29

.49

.31

.27

.38

.28

.21

.24

.29

0.24

1.04 

1.70

1.17

1.52

1.04

1.39

1.83

1.39

.96

.61

1.17

1.26

.87

.57

.87

1.44

2.74

1.57

1.17

2.35

1.70

1.31

1.57

2.00

0.96

.28 

.39

.33

.30

.31

.43

.41

.33

.49

.49

.48

.33

.20

.69

.72

.46

.31

.26

.39

.48

.56

.57

.56

.72

.54

.46

.56

.44

0.32

.40 

.58

.48

.52

.52

.56

.54

.40

.48

.54

.48

.29

.23

.33

.33

.27

.25

.17

.19

.27

.48

.25

.21

.29

.23

.21

.23

.37

0.32

.96 

1.58

1.13

1.18

1.13

1.24

1.50

.93

1.27

1.72

1.30

.85

.51

1.07

1.16

1.18

.79

.56

.85

1.35

2.91

1.47

1.02

2.20

1.58

1.13

1.33

1.92

0.89

--_

.01_

.01__

___

.01_

.01_

.02_

.01

.03

.01"

.00 

.02

.02

.02

.03

.02

.02

.02

.03

.03

.02

.02

.01

.01

.01

.02

.00

.01

.00

.00

.00

.00

.01

.01

.01

.01

.01

0-01
NECHES RIVER BASIN

8-410. NECHES RIVER AT EVADALE, TEX.

LOCATION. At gaging station at bridge on U. S. Highway 96, 200 feet upstream from Gulf, Colorado and Sa

600 feet downstream from Mill Creek, 15 miles upstream from Village Creek, and at mile 55. 

DRAINAGE AREA. 7,952 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1962.

Water temperatures: October 1947 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 277 micromhos Jan. 11; minimum daily, 87 micro

Percent sodium: Maximum, 67 Dec. 1-10; minimum, 52 May 6-18.

Sodium-adsorption-ratio: Maximum, 2.24 Aug. 1-31; minimum, 1.11 May 6-18. 

EXTREMES, 1947-62. Specific conductance: Maximum daily, 422 micromhos Jan. 25, 1957; minimum daily, 44 

Percent sodium: Maximum, 76 Jan. 21-31, 1957; minimum, 14 June 4-18, 1950.

REMARKS. Sodium (Na) and potassium (K) values are calculated and reported as sodium (Na). Records of s

district office at Austin, Tex.

Chemical analyse*, water year October .1961 to September 

Date 

of 

collection

Oct. 1-8, 1961. .

Nov. 20-30......

Jan. 1-10, 1962.

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

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

Mar. 11-20. .....

Runoff 

(acrefeet)

28,102 

29 , 704 

19,025 

30,323 

25 , 206

60,589 

48,000 

114,643 

60,099 

284,767

156,298 

216,198 

127,200 

201,884 

205,289

198,545 

90,700 

139,081 

133,507 

120,916

Silica 

(Si02) 

ppm

16.0 

18.0 

18.0 

15.0 

12.0

19.0 

14.0 

12.0 

8.4 

8.3

9.6 

13.0 

15.0 

15.0 

14.0

12.0 

15.0 

14.0 

13.0 

12.0

Equivalents per million

Calcium 

(Ca)

0.39- 

.45 

.46 

.50 

.32

.44 

.39 

.32 

.20 

.17

.25 

.34 

.42 

.44 

.40

.39 

.46 

.50 

.50 

.50

Magnesium 

(Mg)

0.21 

.25 

.26 

.25 

.15

.22 

.22 

.21 

.16 

.16

.18 

.21 

.28 

.27

.26

.27 

.31 

.36 

.33 

.39

Sodium 

(Na)

0.74 

1.04 

1.09 

1.17 

.70

.87 

1.22 

1.04 

.65 

.48

.57 

.74 

1.09 

.87 

.87

.87 

1.04 

1.09 

1.17 

1.22

Potassium 

(K)

Bicarbonate 

(HC03)

0.39 

.44 

.51 

.57 

.30

.56 

.57 

.36 

.23 

.20

.21 

.16 

.23 

.21

.21

.21

.30 

.36 

.33 

.36

Carbonate 

(C03)

Sulfate 

(S04 )

0.33 

.35 

.35 

.35 

.23

.29 

.31 

.35 

.25 

.25

.35 

.42 

.52 

.56 

.58

.52 

.58 

.65 

.65 

.71

Chloride 

(Cl)

0.59 

.93 

.93 

.96 

.62

.65 

.93 

.85 

.51 

.34

.42 

.68 

1.02 

.79 

.71

.79 

.93 

.93 

.99 

1.02

Fluoride

(F)

0.01 

.01 

.01 

.02 

.01

.01 

.01 

.01 

.02 

.01

.01 

.01 

.01 

.01 

.00

.01 

.01 

.01 

.01 

.01

Nitrate 

(N03)

0.01 

.01 

.01 

.02 

.01

.02 

.02 

.01 

.01 

.01

.01 

.01 

.00 

.01 

.01

.01 

.00 

.01 

.01 

.01
Apr. 1-10, 1962.

Sept. 1-30. .....

Total or 

weighted 

average

66,585 

78,843

86 , 777

137,486

23 , 603

26,378

62,868

74,769

29,633

3 , 746 , 000

11.0 

12.0

11.0

14.0

14.0

9.6

12.0

15.0

18.0

13.0

.55

.55

.50

.50

.47

.33

.47

.50

.50

.55

0.39

.44 

.44

.39

.31

.33

.21

.31

.32

.35

.37

.39

0.27

1.22 

1.17

1.13

.57

.91

.96

.70

.91

1.00

1.04

1.48

1.31

0.86

.46 

.49

.48

.30

.52

.56

.36

.56

.52

.30

.61

.69

.72

0.33

0.23-

.65 

.60

.56

.48

.31

.35

.33

.25

.31

.31

.37

.37

.40

.35

0.43

1.10 

1.07

.96

.85

.45

.85

.82

.62

.82

.79

.82

.90

1.24

1.16

0.75

.01_

.01

.01__

.01

.01

.01-

.00 

.00

.01

.01

.01

.02

.02

.02

.02

.02

.00

.00

.01

.01

0.01

A Residue at 180°C.
TRINITY RIVER BASIN

8-665. TRINITY RIVER AT ROMAYOR, TEX.

LOCATION (revised). At gaging station at bridge on State Highway 105, 1.9 miles south of Romayor, Liberty 

and Santa Fe Railway Co. bridge, 3.7 miles downstream from Big Creek, and at mile 94. 

DRAINAGE AREA. 17,192 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to November 1949, February 1950 to September 1951, Ap

Water temperatures: February 1950 to September 1951, April 1953 to January 1959, March 1944 to Septembe

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,310 micromhos June 11; minimum daily, 235 micr

Percent sodium: Maximum, 66 Nov. 17-30, June 11-12; minimum, 35 May 2-9, Aug. 4-15, Sept. 15-30.

Sodium-adsorption-ratio: Maximum, 5.23 June 11-12; minimum, 1.09 May 2-9. 

EXTREMES, 1945-50, 1953-62. Specific conductance: Maximum daily, 3,800 micromhos Oct. 30, 1956; minimum 

Percent sodium: Maximum, 86 Nov. 7, 1953; minimum, 23 June 11-20, 1946. 

REMARKS. Records of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analys water year October 1961 to September 

Date 

of 

collection

Oct. 1-9, 1961..

Oct. 21-31......

Dec. 1-17.......

Jan. 1-23, 1962.

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

Runoff 

(acrefeet)

29,008 

32,160 

21,775 

27,991 

13,765 

85,166

234 , 516 

35,702 

167,207 

110,820 

161,449 

54 , 506

130,116 

45,461 

82,401 

71,708 

43,755 

111.808

Silica

(sicg

ppm

17.0 

15.0 

15.0 

15.0 

13.0 

17.0

14.0 

12.0 

11.0 

12.0 

15.0 

14.0

16.0 

16.0 

16.0 

15.0 

15.0 

14.0

Equivalents per million

Calcium 

(Ca)

2.10 

2.59 

2.69 

2.54 

1.80 

2.30

2.10 

1.75 

1.15 

1.70 

2.30 

2.10

1.10 

1.60 

2.15 

2.40 

2.00 

2.30

Magnesium 

(Mg)

0.40 

.51 

.49 

.49 

.35 

.50

.36 

.33 

.16 

.32

.54 

.44

.26 

.24 

.53 

.58 

.44 

.49

Sodium 

(Na)

2.83 

5.13 

4.48 

4.87 

3.61 

5.35

1.74 

1.31 

.96 

1.57 

3.26 

2.83

1.35 

1.48 

2.78 

3.52 

2.57 

2.35

Potassium 

(K)

Bicarbonate 

(HCO,)

2.03 

2.56 

2.69 

2.41 

1.59 

2.16

1.90 

1.57 

.95 

1.52 

1.70 

1.59

.89 

1.10 

1.69 

1.97 

1.61 

1.88

Carbonate

(ccg

Sulfate 

(SO,)

0.87 

1.29 

1.35 

1.23 

.81 

1.35

.87 

.73 

.52 

.73 

1.35 

1.23

.67 

.48 

1.29 

1.42 

1.19 

1.31

Chloride 

(CD

2.40 

4.32 

3.53 

4.18 

3.30 

4.49

1.38 

1.02 

.73 

1.30 

2.96 

2.43

1.10 

1.69 

2.43 

2.99 

2.12 

1.86

Fluoride

(F)

0.03 

.02 

.03

.02 

.02

.01

.02

Nitrate

(Ncg

0.03 

.06 

.08 

.06 

.05 

.11

.06 

.05 

.05 

.05 

.09 

.09

.04 

.05 

.05 

.09 

.07 

.06

B

p
Mar. 11-20, 1962

June 27-30 ......

Sept. 15-30.. . . .

Total or 

weighted 

( average

73 , 726

77,754

34,909

308,025

63,888

18,762

73,337

6 , 545

33,243

13,924

84,893

47,127

26,602

23 , 405

41 , 796

323,068

2,325,000

14.0 

13.0

16.0

13.0

16.0

15.0

11.0

14.0

14.0

14.0

14.0

19.0

17.0

17.0

13.0

18.0

19.0

17.0

25.0

15.0

13.0

14.0

15.0

12.0

14.0

2.35 

2.40

2.84

2.30

1.75

1.95

1.85

2.20

2.45

3.24

3.09

3.04

2.50

2.15

2.64

2.10

2.15

2.89

3.39

2.20

2.89

2.79

2.40

2.20

2.12

.54

.63

.41

.30

.31

.30

.35

.57

.47

.51

.59

.59

.35

.44

.42

.37

.47

.49

.30

.43

.48

.37

.36

0.39

2.87 

2.91

4.52

2.31

1.48

2.74

1.13

1.44

2.13

2.83

3.13

7.05

4.31

2.04

3.57

3.31

1.87

3.31

4.61

1.35

2.83

4.39

5.00

1.35

2.29

1.90 

1.92

2.36

1.97

1.44

1.69

1.69

2.00

2.36

3.06

2.92

2.79

2.28

2.05

2.43

1.98

2.16

2.93

3.28

2.23

2.92

2.77

2.29

2.23

1.91

1.31 

1.27

1.75

1.12

.73

1.04

.73

.75

.90

1.21

1.04

1.33

1.33

.85

1.10

1.00

.75

.96

1.27

.73

.85

1.04

1.21

.62

0.94

2.48 

2.68

3.72

1.86

1.33

2.23

.76

1.18

1.86

2.20

2.71

6.49

3.72

1.58

3.07

2.76

1.41

2.76

3.86

.85

2.37

3.81

4.18

1.02

1.88

.02 

.02

.03_

.02

.02_

__

.03

.03_

.03-

.05 

.02

.12

.08

.04

.04

.06

.04

.05

.05

.02

.06

.08

.06

.06

.07

.06

.03

.03

.05

.02

.03

.09

.04

0.06
BRAZOS RIVER BASIN

8-1140. BRAZOS RIVER AT RICHMOND, TEX.

LOCATION. At gaging station at bridge on U.S. Highway 59 in Richmond, Fort Bend County, 925 feet downstr

bridge, and at mile 93.

DRAINAGE AREA. 44,020 square miles, approximately, of which 9,240 square miles is probably noncontributi

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1962.

Water temperatures: November 1950 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,860 micromhos Aug. 8; minimum daily, 348 micr

Percent sodium: Maximum, 60 Aug. 1-10; minimum, 32 June 18-21, 23. 

Sodium-adsorption-ratio: Maximum, 5.48 Aug. 1-10; minimum, 1.06 June 18-21, 23. 

EXTREMES, 1945-62. Specific conductance: Maximum daily, 2,540 micromhos Sept. 4, 1951; minimum daily, 1

Percent sodium: Maximum, 76 Dec. 3-4, 1945; minimum, 18 Aug. 27-21, 1947.

REMARKS. Values reported for dissolved solids concentrations less than 1,000 ppm are residues on evapora

are calculated from determined constituents unless otherwise noted. Records of specific conductance o

at Austin, Tex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-13, 1961.

Jan. 1-15, 1962.

Mar. 1-15.......

Runoff 

(acrefeet)

93 , 909 

82,671 

107,728 

82,195 

88,443 

136,383

142,988 

90,089 

'' 150,962 

173,782 

101 , 246 

70,405

38,340 

35,762 

114,611 

39,168 

63,431 

81 , 550

Silica 

(SiOj) 

ppm

16.0 

15.0 

18.0 

14.0 

12.0 

14.0

12.0 

13.0 

12.0 

14.0 

10.0 

11.0

16.0 

15.0 

12.0 

9.4 

7.9 

12.0

Equivalents per million

Calcium 

(Ca)

3.99 

2.35 

4.79 

3.39 

3.29 

3.14

2.94 

3.64 

3.49 

2.64 

3.99 

4.44

3.09 

2.40 

2.50 

3.34 

3.89 

3.74

Magnesium 

(Mg)

1.15 

.61 

1.32 

1.07 

.82 

.73

.62 

.99 

.99 

.71 

1.15 

1.23

.77 

.56 

.69 

.99 

1.15 

1.15

Sodium

(Na)

6.09 

1.96 

8.13 

3.57 

3.57 

3.57

2.87 

3.48 

3.65 

2.65 

3.70 

4.83

2.35 

2.31 

2.31 

3.13 

4.39 

4.26

Potassium 

(K)

Bicarbonate 

(HCO,)

2.72 

2.31 

2.38 

2.95 

2.77 

2.62

2.61 

3.05 

2.72 

2.03 

3.41 

3.54

2.70 

1.90 

2.05 

2.97 

3.02 

2.88

CarDonate 

(C03)

Sulfate 

(S04 )

2.62 

.92 

3.71 

1.62 

1.62 

1.60

1.48 

1.56 

1.73 

1.37 

1.79 

2.42

1.19 

1.27 

1.25 

1.67 

2.27 

2.27

Chloride 

(CD

5.87 

1.61 

8.12 

3.41 

3.22 

3.16

2.31 

3.44 

3.61 

2.57 

3.61 

4.51

2.26 

2.06 

2.14 

2.79 

4.12 

3.98

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02

.02 

.02 

.02

Nitrate 

(N03)

0.01 

.06 

.02 

.02 

.03 

.02

.02 

.03 

.04 

.03 

.03 

.03

.05 

.04 

.02 

.01 

.02 

.00

B
Mar. 16-31, 1962

May 3-7, 9-13. . .

JUne 18-21, 23..

June 24-30. .....

Sept. 1-13,15-30

Total or 

weighted 

average

65,502 

56,945

55,993

40,106

98,995

10,980

7,636

74,961

84,793

52,403

62,479

11,425

412,308 

34,116

3,264,000

12.0 

8.1

16.0

16.0

15.0

12.0

12.0

12.0

7.9

10.0

16.0

15.0

13.0

13.0

4.04

3.64

3.59

2.74

4.34

3.19

2.40

2.89

2.05

4.69

4.19

3.55

1.32 

1.48

1.32

.99

.71

1.65

.90

.63

.65

.43

1.32

1.07

1.40

1.32 

.64

1.02

5.31

4.48

4.18

2.35

6.09

5.35

2.00

2.48

1.17

5.35

7.09

4.59

3.25 

3.25

2.69

2.47

2.11 

3.16

3.51

1.79

2.03

2.08

1.93

2.18

2.23

2.36

2.52

2.56

2.19

1.39

2.62

1.50

.79

3.29

2.22

4.85 

4.80

4.37

4.01

2.23 

4.80

5.78

5.02

1.75

2.37

.90 

3.16

7.90

5.22

7.84

6.91 

2.17

4.39

.02

.02

_

_

-

_

_

.02

"

.00

.06

.05

.05

.02

.00

.01

0.02

a Calculated from determined constituents.
COLORADO RIVER BASIN

8-1580. COLORADO RIVER AT AUSTIN, TEX.

LOCATION. At raw water intake at Austin City Waterplant, just downstream from Lamar Boulevard Bridge in A

Creek, and 4.5 miles upstream from gaging station at Montopolis Bridge on U. S. Highway 183.

DRAINAGE AREA. 38,400 square miles, approximately, above gaging station, of which 11,900 square miles is 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1962.

Water temperatures: October 1947 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 622 micromhos Aug. 6; minimum daily, 453 micromh

Percent sodium: Maximum, 32 Jan. 1-31, Aug. 25-31; minimum, 20 Feb. 1-28. 

Sodium-adsorption-ratio: Maximum, 1.26 Jan. 1-31; minimum, 0.77 Feb. 1-28. 

EXTREMES, 1947-62. Specific conductance: Maximum daily, 622 micromhos Aug. 6, 1962; minimum daily, 243 m

Percent sodium: Maximum, 46 Nov. 1-30, 1951; minimum, 15 Nov. 1-30, 1953, Jan. 1-31, 1954, Dec. 1-31, 1

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

daily samples available in district office at Austin, Tex. No appreciable inflow between sampling poin

local rains.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961. 

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

Jan. 1-31, 1962.

July 1-31...... .

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

52,141 

172,264 

181,880 

99,241 

13,384 

10,760 

23,147

85,652 

111,987 

116,765 

83,639 

21 , 049 

51,412

1,023,000

Silica

(Si02) 

ppm

10.0 

11.0 

11.0 

9.9 

11.0 

9.5 

12.0

11.0 

10.0 

12.0 

12.0 

12.0 

10.0

11.0

Equivalents per million

Calcium 

(Ca)

2.30 

1.95 

2.10 

2.00 

2.79 

2.40 

2.59

2.30 

2.20 

2.20 

2.15 

2.00 

2.10

2.14

Magnesium 

(Mg)

1.56 

1.48 

1.56 

1.65 

1.81 

1.48 

1.56

1.56 

1.56 

1.65 

1.56 

1.56 

1.65

1.57

Sodium 

(Na)

1.09 

1.48 

1.44 

1.70 

1.17 

1.61 

1.61

1.48 

1.48 

1.57 

1.52 

1.65 

1.61

1.50

Potassium 

(K)

.10 

.10

.10

-

Bicarbonate

(Hccg

3.15 

2.82 

2.82 

3.06 

3.74 

3.16 

3.31

3.00 

2.90 

2.95 

2.57 

2.69 

2.82

2.90

Car30 nate 

(C03)

Sulfate 

(S04 )

0.56 

.60 

.65 

.71 

.69 

.77 

.73

.71 

.71 

.73 

.77 

.73 

.73

0.68

Chloride

(CD

1.18 

1.44 

1.58 

1.55 

1.30 

1.52 

1.66

1.72 

1.69 

1.72 

1.75 

1.75 

1.78

1.60

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.01 

.01 

.02

.02 

.02 

.02 

.02 

.02

0.02

Nitrate 

(N03)

0.02 

.01 

.01 

.02 

.05 

.03 

.02

.02 

.01 

.01 

.15 

.01 

.01

0.02

B

p
COLORADO RIVER BASIN Continued

8-1620. COLORADO RIVER AT WHARTON, TEX.

LOCATION. At gaging station at bridge on U.S. Highway 39, in Wharton, Wharton County 1,000 feet downst

12 miles upstream from Jones Creek, and at mile 67.

DRAINAGE AREA. 41,380 square miles, approximately, of which 11,900 square miles is probably noncontribu

RECORDS AVAILABLE. Chemical analyses: April 1944 to September 1962.

Water temperatures: October 1945 to September 1948, March 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 662 micromhos May 13; minimum daily, 204 micr

Percent sodium: Maximum, 37 Aug. 1-31; minimum, 25 Nov. 1-13, 18-30, Feb. 1-17.

Sodium-adsorption-ratio: Maximum, 1.62 Aug. 1-31; minimum, 0.73 Nov. 14-17. 

EXTREMES, 1944-62. Specific conductance: Maximum daily, 765 raicrorahos Feb. 5, 1957; minimum daily, 14

Percent sodium: Maximum, 43 Nov. 1-30, 1951; minimum, 7 Jan. 19-24, 1945. 

REMARKS. Records of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, water year October 1961 to Septemb

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-27, 1962.

May 11-20.......

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

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

91 , 248 

61,214 

92,271 

101,929 

210,226 

137,579

24,373 

34,899 

3,713 

14,870 

49,989 

20,648

16,780 

14,834 

3,947 

14,709 

10,711

21,382 

111,332 

72,494 

54,601 

78,783

1 , 243 , 000

Silica 

(Si02) 

ppm

14.0 

17.0 

12.0 

14.0 

15.0 

11.0

13.0 

11.0 

12.0 

13.0 

11.0 

13.0

14.0 

13.0 

12.0 

12.0 

12.0

9.1 

13.0 

12.0 

12.0 

14.0

13.1

Equivalents per million

Calcium 

(Ca)

2.40 

2.69 

1.50 

2.40 

2.59 

2.59

2.20 

3.09 

2.00 

2.79 

2.89 

2.99

2.99 

2.05 

1.95 

2.89 

2.89

2.30 

2.40 

2.30 

2.20 

2.25

2.44

Magnesium 

(Mg)

1.40 

1.32 

.55 

1.23 

1.40 

1.56

1.15 

1.40 

.90 

1.40 

1.56 

1.48

1.48 

.90 

.79 

1.15 

1.40

1.48 

1.15 

1.40 

1.56 

1.32

1.31

Sodium 

(Na)a

1.31 

1.35 

.74 

1.22 

1.52 

1.78

1.52 

1.52 

1.13 

1.61 

1.74 

1.78

1.83 

1.39 

1.04 

1.78 

1.74

1.74 

1.61 

1.70 

2.22 

1.96

1.54

Potassium 

(K)

Bicarbonate 

(HCOj)

3.20 

3.36 

1.74 

2.90 

3.26 

3.57

2.70 

3.80 

2.59 

3.54 

3.56 

3.65

3.54 

2.62 

2.29 

2.95 

3.46

3.00 

2.87 

3.03 

3.36 

3.18

3.11

Carbonate 

(C03)

Sulfate 

(S04)

0.71 

.71 

.37 

.65 

.71 

.77

.79 

.85 

.48 

.90 

1.06 

1.00

1.04 

.48 

.50 

1.19 

.87

.75 

.75 

.73 

.79 

.79

0.73

Chloride 

(CD

1.16 

1.21 

.62 

1.24 

1.47 

1.55

1.33 

1.30 

.93 

1.33 

1.50 

1.58

1.69 

1.18 

.96 

1.64 

1.89

1.78 

1.47 

1.64 

1.81 

1.50

1.39

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02

.02 

.00 

.02 

.02

0.02

Nitrate

(N03)

0.02 

.05 

.03 

.04 

.04 

.05

.04 

.03 

.03 

.03 

.04 

.02

.02 

.03 

.02 

.03 

.02

.01 

.03 

.01 

.01 

.02

0.03

a Calculated as sodium (Na).
GUADALUPE RIVER BASIN 

8-1765. GUADALUPE RIVER AT VICTORIA, TEX.

LOCATION.--At gaging station at bridge on U. S. Highway 59 in Victoria, Victoria County, 1,300 feet upstr

10 miles upstream from Coleto Creek, and at mile 51. 

DRAINAGE AREA. 5,161 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1945 to September 1946, October 1948 to September 1962.

Water temperatures: November 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 817 micromhos Mar. 6; minimum daily, 257 microm

Percent sodium: Maximum, 35 Mar. 1-10; minimum, 24 Nov. 15-22, Feb 15-16, June 16-30.

Sodium-adsorption-ratio: Maximum, 1.55 Mar. 1-10; minimum, 70 Nov. 15-22. 

EXTREMES, 1945-46, 1948-62. Specific conductance: Maximum, daily 1,950 micromhos Jan. 11-17, 1946; mini

Percent sodium: Maximum, 67 July 23-24, 1950; minimum, 13 May 7-10, 1958. 

REMARKS. Records of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, water year October 1961 to September 

Date

of 

collection

Oct. 1-10, 1961.

Oct. 21-31......

Jan. 1-31, 1962.

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

Apr. 21-30......

Ruaoff 

(acrefeet)

17,970 

24,476 

21,185 

36,488 

76,784 

19,740

30,436 

30,847 

55,708 

23,437 

5,474 

21 , 207

15,590 

15,947 

16,473 

17,058 

15,154 

24 . 000

Silica 

(Si02) 

ppm

18.0 

17.0 

16.0 

19.0 

15.0 

19.0

17.0 

14.0 

11.0 

15.0 

12.0 

13.0

15.0 

15.0 

13.0 

15.0 

17.0 

14.0

Equivalents per million

Calcium 

(Ca)

2.84 

2.79 

3.09 

2.99 

1.90 

3.34

3.54 

3.89 

3.29 

2.54 

2.05 

2.64

2.69 

2.59 

2.84 

2.79 

2.94 

2.79

Magnesium 

(Mg)

1.48 

1.48 

1.15 

1.15 

.59 

1.07

1.73 

1.56 

1.56 

1.56 

.63 

1.48

1.56 

1.56 

1.56 

1.32 

1.48 

1.23

Sodium 

(Na)a

1.44 

1.39 

1.39 

1.44 

.78 

1.52

1.83 

1.78 

1.74 

1.91 

.83 

1.91

2.26 

1.78 

1.87 

1.70 

1.96 

1.48

Potassium 

(K)

Bicarbonate 

(HCOa)

3.77 

3.64 

3.75 

3.70 

2.16 

3.62

4.43 

4.59 

4.05 

3.25 

2.28 

3.36

3.43 

3.39 

3.59 

3.44 

3.67 

3.44

Carbonate 

(C03)

Sulfate 

(S04 )

0.71 

.67 

.65 

.62 

.44 

.87

.83 

.87 

.90 

.96 

.52 

.90

.94 

.83 

.87 

.77 

.85 

.65

Chloride 

(Cl)

1.18 

1.24 

1.13 

1.16 

.62 

1.35

1.81 

1.69 

1.52 

1.72 

.87 

1.69

2.06 

1.64 

1.75 

1.50 

1.81 

1.35

Fluoride 

(F)

0.02 

.02 

.02 

.02 

.02 

.02

.02 

.02 

.02 

.02

.02

.01 

.01 

.01 

.02

Nitrate 

(N03)

0.06 

.07 

.08 

.07 

.05 

.07

.00 

.08 

.09 

.07 

.06 

.06

.05 

.06 

.05 

.06 

.05 

.05
May 1-10, 1962..

Total or 

weighted 

average

19,855

1 9 QTO

9,600

8,356

20,414

661,900

24.0

20.0

17.0

2.84 2

0^

2.69

2.76

1.15

1.40

1.48

1.48

.90

1.07

1.28

.87

1.39

1.70

1.51

3.29

3.51

3.79

3.51

3.45

.92

.54

.54

.58

.56

.67

.58

0.71

1.55

1.30

1.13

1.10

1.30

1.38

1.02

1.33

.02_

.02_

0.02

0.06

.05

.04

.04

.02

.03

.04

.04

0.05

a Calculated as sodium (Na),
NUECES RIVER BASIN

8-2110. NUECES RIVER NEAR MATHIS, TEX.

LOCATION. At intake tower at Wesley E. Seale Dam, 0.6 mile upstream from gaging station at bridge on St

San Patricio County.

DRAINAGE AREA. 16,660 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1947 to September 1962.

Water temperatures: October 1947 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 773 micromhos July 28; minimum daily, 459 micro

Percent sodium: Maximum, 51 Aug. 1 to Sept. 30; minimum, 35 Nov. 1-30.

Sodium-adsorption-ratio: Maximum, 2.57 Aug. 1-31; minimum, 1.46 Nov. 1-30. 

EXTREMES, 1947-62. Specific conductance: Maximum daily, 1,040 micromhos July 1, 1948; minimum daily, 2

Percent sodium: Maximum, 63 May 1-20, 1953; minimum, 22 June 1-30, 1957. 

REMARKS. Records of specific conductance of daily samples available in district office at Austin, Tex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961. 

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

Jan. 1-31, 1962.

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

Total or 

weighted 

average

Runoff 

(acrefeet)

6,764 

6,248 

6,272 

6,579 

6,220 

5,878

6,367 

8,178 

6,129 

8,178 

7,870 

5,397

80,080

Silica 

(Si02) 

ppm

18.0 

18.0 

19.0 

18.0 

18.0 

20.0

22.0 

23.0 

21.0 

19.0 

17.0 

17.0

19.0

Equivalents per million

Calcium 

(Ca)

2.89 

2.99 

2.99 

3.04 

3.09 

3.09

2.99 

2.79 

2.50 

2.50 

2.50 

2.35

2.80

Magnesium 

(Mg)

0.52 

.59 

.57 

.58 

.57 

.59

.59 

.66 

.64 

.63 

.63 

.60

0.60

Sodium 

(Na) a

2.04 

1.96 

2.04 

2.13 

2.13 

2.39

2.48 

2.57 

2.65 

2.87 

3.22 

3.05

2.48

Potassium 

(K)

Bicarbonate 

(HCOj)

3.31 

3.43 

3.36 

3.51 

3.49 

3.61

3.46 

3.23 

2.93 

3.03 

3.10 

2.87

3.27

Carbonate 

(C03)

Sulfate 

(S0 4 )

0.67 

.67 

.69 

.71 

.71 

.79

.79 

.85 

.81 

.83 

.94 

.83

0.78

Chloride 

(Cl)

1.44 

1.41 

1.52 

1.52 

1.55 

1.66

1.78 

1.92 

2.03 

2.12 

2.26 

2.26

1.80

Fluoride

(F)

0.02 

.02 

.02 

.01 

.02 

.02

.02 

.02 

.01 

.02 

.02 

.02

0.02

Nitrate 

(N03)

0.02 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0.01

a Calculated as sodium (Na).
RIO GRANDE BASIN

8-2492. RIO GRANDE ABOVE CULEBRA CREEK, NEAR LOBATOS, COL

LOCATION. Half a mile southeast of Lasauses, 7 miles upstream from Culebra Creek, and 15 miles upstream f

DRAINAGE AREA. 7,700 square miles, approximately, upstream from gaging station (includes 2,940 square mile

Valley, Colo.).

RECORDS AVAILABLE. Chemical analyses: October 1946 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 788 micromhos Aug. 15; minimum daily, 151 micromh

Percent sodium: Maximum, 41 Nov. 21, July 1-7; minimum, 25 Apr. 27-29. 

Sodium-adsorption-ratio: Maximum, 1.99 July 1-7; minimum, 0.62 Apr. 16-20, 22, 24-26. 

EXTREMES, 1946-62. Specific conductance: Maximum daily, 1,110 micromhos Sept. 21, 1959; minimum daily, 12

Percent sodium: Maximum, 72 May 11-14, 1957; minimum, 16 Dec. 1, 3-10, 1946.

REMARKS. Records of specific conductance of daily samples available in district office at Albuquerque, N. 

between the sampling point and the gaging station is usually dry at its mouth. Inflow from this and oth

station occurs only after heavy local rainfall.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-11, 1961.

No . 19-20,22-30

Dec. 1-8. .......

Runoff

(acrefeet)

1,490 

145 

220 

865 

182 

179 

1,363 

865

323 

1,849 

4,867 

1,075 

10,647 

8,400 

783 

6.125

Silica 

(Si02) 

ppm

30.0

Equivalents per million

Calcium 

(Ca)

2.35 

2.05 

2.40 

2.10 

2.54 

2.30 

2.40 

2.10

1.40 

1.05 

1.30 

2.20 

1.35 

1.60 

.85 

1.90

Magnesium 

(Mg)

0.82 

.51 

.72 

.66 

.78 

.54 

.72 

.58

.34 

.21 

.36 

.62 

.41 

.44 

.33 

.12

Sodium 

(Na)

1.96 

1.39 

2.00 

1.48 

1.91 

1.57 

1.74 

1.35

.83 

.61 

.78 

1.39 

.78 

.91 

.83 

.83

Potassium 

(K)

0.10

Bicarbonate 

(HCOs)

2.69 

2.13 

2.64 

2.38 

2.49 

3.97 

2.62 

2.15

1.70 

1.18 

1.62 

2.07 

1.57 

1.80 

.52 

1.77

Carlo nate 

(C03)

0.00 

.00 

.13 

.00 

.13 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00 

.53 

.00

Sulfate 

(S04 )

0.81

Chloride 

(Cl)

0.23

Fluoride

(F)

0.01

Nitrate 

(N03)

0.01

B

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July 20, 1962, . . 

July 26-Aug. 2. . 

Aug. 3-7. .......

Sept. 1-30......

Total or

weighted 

average

232 

2,380 

1,150

105

589

994

3,999

"___

31.0

2.99 

2.40 

2.79

3.54

1.60

3.39

2.59

2.50

.99 

.80 

.90

1.23

.30

1.15

.82

.78

2.18 

1.74 

2.18

2.96

1.00

2.83

1.96

1.91

___

.18

3.31 

3.08 

3.05

3.16

2.00

3.02

2.59

2.79

.00 

.00 

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.00

.00

.00

.00

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2.12

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RIO GRANDE BASIN Continued 

8-3130. RIO GRANDE AT OTOWI BRIDGE, NEAR SAN ILDEFONSO, N. 

LOCATION. At gaging station on pier of former railway bridge, 400 feet downstream from bridge on State Hi

2.5 miles downstream from Pojoaque River, and 7 miles west of Pojoaque, Santa Fe County.

DRAINAGE AREA. 14,300 square miles, approximately (includes 2,940 square miles in closed basin in San Lui

RECORDS AVAILABLE. Chemical analyses: October 1948 to September 1962.

Water temperatures: October 1948 to September 1962.

Sediment records: October 1947 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 589 micromhos July 10; minimum daily, 193 micromh

Percent sodium: Maximum, 36 Sept. 22-30; minimum, 16 Apr. 19-30.

Sodium-adsorption-ratio: Maximum, 1.58 July 5-13; minimum, 0.40 Apr. 19-30. 

EXTREMES, 1948-62 . Specif ic conductance: Maximum daily, 1,230 micromhos Aug. 26, 1951; minimum daily, 16

Percent sodium: Maximum, 43 Sept. 13-30, 1958; minimum, 12 Apr. 26-30, Aug. 1-7, 1958. 

REMARKS. Records of specific conductance of daily samples available in district office at Albuquerque, N. 

Chemical analyses, water year October 1961 to September 1962

Dats 

of 

collection

Oct. 1-10, 1961.

Oct . 30-Nov . 4 . .

Jan. 1-31, 1962.

Mar. 1-18. ......

Apr. 19-30......

Runoff 

(acrefeet)

9,064 

2,344 

18,343 

8,997 

4,324

87 , 769 

33,644 

36,298 

41 , 074 

15,031

2,777 

25,198 

22,831 

33,346 

19,137

17,970 

16,725 

81,396 

26 , 479 

144 , 881

Silica 

(Si02) 

ppm

28.0 

23.0 

26.0 

25.0 

24.0

24.0 

23.0 

27.0 

32.0 

28.0

21.0 

23.0 

26.0 

29.0 

23.0

18.0 

23.0 

22.0 

18.0 

23.0

Equivalsnts per million

Calcium 

(Ca)

2.25 

2.79 

2.30 

2.40 

2.79

1.95 

1.90 

2.15 

1.90 

2.00

3.54 

2.69 

2.10 

2.20 

2.45

2.79 

2.84 

2.40 

2.00 

1.75

Magnesium 

(Mg)

0.59 

.73 

.58 

.64 

.53

.53 

.62 

.65 

.66 

.64

.82 

.71 

.64 

.58 

.90

.90 

.68 

.60 

.50 

.35

Sodium 

(Na)

1.00 

1.52 

1.04 

1.52 

.74

.61 

.70 

.91 

.96 

1.00

1.52 

1.13 

1.04 

1.04 

1.13

1.00 

.87 

.74 

.61 

.41

Potassium 

(K)

--

Bicarbonate 

(HCOj)

2.56 

2.84 

2.58 

2.72 

2.69

2.00 

1.97 

2.36 

2.36 

2.34

3.08 

2.39 

2.18 

2.29 

2.31

2.41 

2.57 

2.34 

1.64 

1.90

Carx>nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.43 

.00

Sulfate 

(S04 )

1.08 

2.00 

1.17 

1.71 

1.21

.96 

1.15 

1.23 

1.00 

1.10

2.39 

2.00 

1.48 

1.37 

2.02

2.23 

1.67 

1.25 

.94 

.54

Chloride 

(Cl)

0.19 

.21 

.21 

.24 

.13

.12 

.12 

.17 

.18 

.19

.19 

.15 

.19 

.20 

.17

.14 

.13 

.12 

.10 

.07

Fluoride 

(F)

Nitrate 

(N03)

0.00 

.02 

.01 

.01 

.04

.01 

.01 

.02 

.02 

.01

.04 

.03 

.02 

.01 

.02

.02 

.03 

.02 

.00 

.01

Bo

(

p
May 1-18, 1962.. 

May 19-30.. .....

uly 1-4. .......

Sept. 1-5.......

Sept. 6-17. .....

Sept. 18-21.....

Sept. 22-30.....

Total or 

weighted 

average

173,228 

57,481

5,101

14,263

6,565

3,166

13,258

2,539

8,765

135,600

21.0 

21.0

25.0

27.0

25.0

28.0

25.0

Is.o

1.60

2.30

2.40

2.84

2

KA

2.30

2.30

2.00

2.20

2.30

15.92

.26

.90

.60

.62

3.01

.43 

.57

2.13

1.48

1.44

1.00

1.31

1.61

2.38

--

_

.15

13

-

1.57 

1.77

2.47

2.87

2.33

2.75

2.04

.03 

.00

.00

.00

.00

.00

.00

0.00

.62 

.85

2.69

1.33

1.00

1.62

17.29

.07

34

34

.23

2.02

.01 

.01

.00

.00

.02

0.01
RIO GRANDE BASIN Continued 

8-3583. RIO GRANDE CONVEYANCE CHANNEL AT SAN MARCIAL, N. 

LOCATION. At gaging station 1,800 feet west of San Marcial gage on railway bridge, about 18.5 miles southw

site of the former village of San Marcial, Socorro County. 

RECORDS AVAILABLE. Chemical analyses: March 1954 to September 1962. 

Water temperatures: March 1954 to September 1982. 

Sediment records: March 1954 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,110 micromhos Sept. 30; minimum daily, 395 micr

Percent sodium: Maximum, 62 Sept. 1-24; minimum, 29 Nov. 9-30. 

Sodium-adsorption-ratio: Maximum, 5.38 Sept. 1-24; minimum, 1.10 Jan. 8-9. 

EXTREMES, 1954-62. Specific conductance: Maximum daily, 2,860 micromhos Oct. 25, 1958; minimum daily, 395 

Percent sodium: Maximum, 66 Oct. 1-20, Nov. 1-21, 1956, Oct. 1-9, 1959; minimum, 29 Nov. 9-30, 1961.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). Rec

available in district office at Albuquerque, N. Hex. Records of discharge for water year October 1961 t

office of Surface Water Branch. Records of composite discharge for Rio Grande conveyance channel at San 

given in Surface Water records as Rio Grande at San Marcial. Chemical analyses for Rio Grande floodway 

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-7, 1962..

Aor. 1-14. ......

Runoff 

(acrefeet)

9,715 

2,922 

1,375 

8,870 

71 , 913

55,361 

21,517 

11,066 

3,062 

2,682

1,051 

1,825 

28,257 

8,102 

11,818

2,955 

9,003 

37,156 

47 , 345 

28.713

Silica 

(Si02) 

ppm

28.0 

36.0

Equivalents per million

Calcium 

(Ca)

4.19 

3.94 

4.89 

3.89 

3.09

2.99 

3.39 

2.99 

2.30 

3.69

3.09 

3.79 

3.44 

3.24 

3.44

4.49 

3.64 

3.04 

3.49 

3.29

Magnesium 

(Mg)

1.07 

1.07 

1.15 

.82 

.65

.73 

.81 

.65 

.34 

.82

.59 

.90 

.80 

.82 

.90

1>23 

.99 

.82 

.90 

.71

Sodium 

(Na)

4.52 

3.74 

5.70 

2.70 

1.57

1.65 

2.35 

2.09 

1.26 

2.83

2.18 

3.31 

2.65 

2.57 

3.48

4.74 

2.74 

2.18 

2.65 

2.04

Potassium 

(K)

0.12 

.13

Bicarbonate 

(HCO,)

3.77 

3.80 

3.61 

3.79 

3.05

2.88 

3.33 

2.95 

2.13 

3.70

3.02 

3.64 

3.44 

3.31 

3.29

3.93 

3.51 

2.95 

3.44 

2.98

Carjonate 

(C03)

0.13 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate

(so«)

1.81 

2.42

Chloride 

(Cl)

0.62 

1.13

Fluoride 

(F)

0.03 

.03

Nitrate

(Ncg

0.03 

.05

Bo

(

p

0
Apr. 15-30, 1962

June 14-24 ......

July 1-19. ......

July 20-31......

Aug. 15-31......

Sept. 28-30.....

Total or 

weighted 

average

39,669 

52,931

8,212

2,221

9,616

12,545

2,951

9,007

3,665

3 277 'eoo

581

3,076

534 , 300

____-

2.89

3.39

4.09

10.88

3.28

.59

3.13

0.77

1.70

2.74

4.05

4.18

5.57

8.87

2.34

20~

2.77

3.05

2.95

3.25

3.15

3.61

3.64

3.67

3.98

3.70

4.64

3.11

.00 

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

0.00

1.73________~-

.73_____

3.16__

-.-

--

.03______

.04__"

.02________"
RIO GRANDE BASIN Continued

8-3584. RIO GRANDE FLOODWAY AT SAN MARCIAL, N. MEX.

LOCATION. At gaging station at Atchison, Topeka and Santa Fe Railway Co. bridge, 1.1 miles downstream f

18.5 miles southwest of San Antonio.

DRAINAGE AREA. 27,700 square miles, approximately (includes 2,940 square miles in closed basin in San Lu

RECORDS AVAILABLE. Chemical analyses: May 1905 to April 1907, July 1946 to September 1962. 

Water temperatures: January 1949 to September 1962. 

Sediment records: July 1946 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,680 micromhos July 25; minimum daily, 358 mic

Percent sodium: Maximum, 48, Sept. 29; minimum, 18 July 22-23. 

Sodium-adsorption-ratio: Maximum, 3.09 July 24-28; minimum, 0.87 May 1-23. 

EXTREMES, 1946-62. Specific conductance: Maximum daily, 2,730 micromhos Apr. 8, 1953; minimum daily, 31

Percent sodium: Maximum, 65 May 1-10, 1951; minimum, 18 July 22-23, 1982.

REMARKS. Records of specific conductance of daily samples available in district office at Albuquerque, N

loads for years prior to 1946 have been published in Water Bulletins of International Boundary and Wat

for Rio Grande conveyance channel at San Marcial and Rio Grande floodway at San Marcial given under Ri

Chemical analyses for Rio Grande conveyance channel given on page No flow Oct. 1 to Nov. 7, 13-15

June 2 to July 21, 29, Aug. 1, Aug. 4 to Sept. 24, 30.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Nov. 8-12, 

16-25, 1961... 

Feb. 16-21, 1962

May 24-June 1 ...

Sept. 29........

Total or 

weighted 

average

Runoff 

(acrefeet)

455 

288 

26,575 

66,962 

112,635 

5,855

113 

28 

18 

194 

591 

4

231 , 700

Silica 

(Si02) 

ppm

28.0 

30.0 

28.0

--

Equivalents per million

Calcium 

(Ca)

2.99 

3.44 

3.09 

2.69 

2.35 

2.99

8.73 

8.18 

3.89 

4.54 

4.44 

3.19

2.58

Magnesium 

(Mg)

0.57 

.82 

.65 

.47 

.55 

.49

1.48 

2.47 

.99 

1.40 

1.23 

.69

0.54

Sodium 

(Na)

1.65 

2.44 

1.57 

1.17 

1.04 

1.48

2.18 

7.13 

3.40 

5.13 

4.05 

3.57

1.18

Potassium 

(K)

0.11 

.12 

08

~

-

Bicarbonate 

(HCOJ

2.90 

3.31 

3.08 

2.72 

2.46 

2.95

5.57 

7.83 

2.69 

4.06 

3.18 

1.90

2.84

Carbonate 

(C03)

Sulfate 

(S04 )

1.81 

1.83 

1.19

--

Chloride 

(Cl)

0.82 

.48 

.34

--

Fluoride

(F)

0.03 

.04 

.03

-

Nitrate 

(N03)

0.04 

.02 

.03

-

B
RIO GRANDE BASIN Continued

8-3610. RIO GRANDE BELOW ELEPHANT BUTTE DAM, N. MEX

LOCATION. At gaging station in Pedro Annendaris Grant, 1.0 mile downstream from dam, and 1.5 miles upstre

DRAINAGE AREA. 28,900 square miles, approximately (includes 2,940 square miles in closed basin in San Lui

RECORDS AVAILABLE. Chemical analyses: 1933 to 1962. 

REMARKS. Chemical analyses by the U. S. Department of Agriculture, Agricultural Research Service, U. S. 

Date 

of 

collection

October, 1961

January, 1962

September ....

Total or 

weighted 

average

Chemical analyses, water year October 1961 to September 

Number 

of 

samples

25 

20 

20 

25 

20 

20

20 

25 

20 

20 

25 

20

"

Runoff 

(acrefeet)

365 

153 

180 

586 

66,780 

111,600

114,700 

118,900 

118,700 

92,260 

57,430 

9,860

691,500

Silica 

(Si02) 

ppra

8 

14

-

Equivalents per million

Calcium 

(Ca)

3.02 

2.92 

3.04 

3.19 

3.14 

3.06

2.99 

2.16 

2.70 

2.56 

2.54 

2.62

2.72

Magnesium 

(Mg)

1.26 

1.28 

1.24 

1.25 

1.04 

1.00

1.11 

.84 

.78 

.74 

.64 

.74

0.89

Sodium 

(Na)

3.72 

4.08 

4.29 

4.63 

3.24 

2.99

2.78 

2.58 

2.04 

1.88 

2.01 

2.51

2.51

Potassium 

(K)

0.21 

.13

-

Bicarbonate 

(HCOJ

2.91 

3.10 

3.20 

3.53 

2.75 

2.85

2.83 

2.05 

2.60 

2.45 

2.60 

3.03

2.59

Carbonate 

(CO,)

Sulfate 

(S04 )

3.56 

3.82 

3.93 

4.22 

3.49 

3.18

3.13 

2.76 

2.22 

2.07 

1.94 

2.31

2.70

Chloride 

(Cl)

1.65 

1.45 

1.50 

1.50 

1.25 

1.25

1.10 

1.00 

.80 

.75 

.75 

.88

0 .99

Fluoride 

(F)

0.04 

.07

-

Nitrate 

(N03)

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0 .01

B

0

0 
RIO GRANDE BASIN Continued 

8-3640. RIO GRANDE NEAR EL PASO, TEX.

LOCATION. At gaging station, 5 miles northwest of El Paso, Tex., 6 miles northwest of Juarez, Chihuahua, an

DRAINAGE AREA. 29,267 square miles (from International Boundary and Water Commission Water Bulletin Number 

RECORDS AVAILABLE. Chemical analyses, 1933 to 1962.

REMARKS. Chemical analyses by the U. S. Department of Agriculture, Agricultural Research Service, U. S. Sal

charge, electrical conductivity of individual water samples, and these same chemical analyses for water y

earlier Bulletins.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

October, 1961

January, 1962

September ....

Total or 

weighted 

average

Number 

of 

samples

31 

30 

31 

27 

28 

31

30 

31 

30 

33 

31 

30

-

Runoff 

(acrefeet)

7,490 

5,830 

7,190 

5,009 

3,694 

46 , 501

35,856 

34,687 

52,126 

63,855 

62,993 

41,201

366 , 400

Silica 

(Si02) 

ppm

27 

21

-

Equivalents per million

Calcium 

(Ca)

5.80 

6.18 

6.67 

6.04 

6.12 

4.20

4.76 

4.42 

4.12 

3.61 

4.04 

4.29

4.30

Magnesium 

(Mg)

2.80 

2.60 

2.66 

2.32 

2.72 

1.32

1.56 

1.68 

1.30 

1.33 

1.17 

1.41

1.47

Sodium 

(Na)

14.82 

14.76 

15.67 

12.96 

15.94 

5.15

6.38 

6.70 

5.38 

5.36 

5.39 

7.10

6.52

Potassium 

(K)

0.25 

.20

-

Bicarbonate

(Hccg

4.10 

4.70 

4.81 

4.30 

4.55 

3.30

3.75 

3.45 

3.55 

3.00 

3.46 

3.35

3.47

Carbonate 

(C03)

Sulfate 

(SO,)

11.40 

10.67 

12.00 

9.96 

11.58 

4.61

5.78 

5.99 

4.91 

4.69 

4.70 

5.84

5.59

Chloride

(CD

8.25 

8.40 

8.60 

7.35 

8.85 

2.90

3.40 

3.60 

2.65 

2.71 

2.72 

3.78

3.44

Fluoride

(F)

0.05 

.04

-

Nitrate

(Ncg

0.01 

.01 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0 .01

B
RIO GRANDE BASIN Continued 

8-3705. RIO GRANDE BELOW OLD FORT QUITMAN, TEX.

LOCATION. At gaging station at the rectified channel of the Rio Grande, 1.5 miles below Old Fort Quitman, 

at El Paso, Tex.

DRAINAGE AREA. 32,035 square miles (United States and Mexico; from International Boundary and Water Commi

RECORDS AVAILABLE. Chemical analyses 1933 to 1962.

REMARKS. Chemical analyses by the U. S. Department of Agriculture, Agricultural Research Service, U. S. S

Records of discharge, electrical conductivity of individual water samples, and these same chemical anal

given in International Boundary and Water Commission Water Bulletin Numbers 31 and 32. Records for pre

Chemical analyses, water year October 1961 to September 19

Date 

of 

collection

October, 1961

January, 1962 

February .....

May..........

September. . . .

Total or 

weighted 

average

Number 

of 

samples

4 

5 

4 

4 

4 

4

4 

5 

4 

11 

5 

8

Runoff 

(acrefeet)

1,770 

4,280 

2,780 

1,770 

488 

402

943 

1,259 

815 

6,513 

3,405 

28,816

53 , 240

Silica 

(Si02) 

ppm

27 

23

~

«

Equivalents per million

Calcium 

(Ca)

20.92 

12.14 

15.27 

18.24 

26.40 

31.25

26.15 

21.64 

28.70 

8.64 

16.78 

8.55

11.72

Magnesium 

(Mg)

9.84 

5.02 

6.50 

8.12 

15.60 

17.55

10.90 

10.04 

11.62 

3.16 

6.35 

2.81

4.54

Sodium 

(Na)

59.36 

26.45 

36.54 

47.20 

81.61 

93.02

67.24 

57.48 

79.29 

18.56 

37.72 

16.50

26.67

Potassium 

(K)

0.32 

.26

-

Bicarbonate 

(HCOJ

4.77 

5.40 

4.80 

5.15 

3.35 

4.05

4.70 

4.21 

3.40 

3.45 

3.53 

4.47

4.38

CarDonate 

(C03)

Sulfate 

(SO*)

26.32 

16.17 

20.04 

23.29 

34.65 

37.63

30.23 

26.67 

34.14 

9.27 

18.83 

9.76

13.91

Chloride 

(CD

59.10 

24.60 

35.88 

45.55 

85.10 

101 . 20

70.00 

58.62 

84.25 

17.93 

39.10 

14.02

25.07

Fluoride 

(F)

0.05

.04

-

Nitrate 

(NO,,)

0.01 

.07 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.03

0.03

B
RIO GRANDE BASIN--Continued

8-3715. RIO GRANDE AT UPPER PRESIDIO, TEX.

LOCATION. At gaging station, 7.8 river miles above the Junction of the Rio Conchos, about 10 miles northw

Chihuahua, and 285.7 river miles below the American Dam at El Paso, Tex.

DRAINAGE AREA. 34,988 square miles (United States and Mexico; from International Boundary and Water Comm

RECORDS AVAILABLE. Chemical analyses 1935 to 1962. 

REMARKS. Chemical analyses by the U. S. Department of Agriculture, Agricultural Research Service, U. S. 

Records of discharge, electrical conductivity of individual water samples, and these same chemical ana

are given in International Boundary and Water Commission Water Bulletin Numbers 31 and 32. Records for 

No flow December 1961 to May 1962.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

October, 1961

September ....

Total or 

weighted 

average

Number 

of 

samples

6

1

3 

10 

6 

11

~

Runoff 

(acrefeet)

713

1

69 

2,932 

3,382 

11,854

a 190,000

Silica 

(Si02) 

ppm

14

-

Equivalents per million

Calcium 

(Ca)

4

5

6 

4.26 

5.10 

6

Magnesium 

(Mg)

.84 

.60

.10

.57 

.59 

.86

6.26

Sodium

(Na)

1.72 

1.55

2.24 

4.84 

5.72 

8.96

7.45

Potassium 

(K)

0.18

-

Bicarbonate

(Hccg

2.37 

1.80

1.65 

2.28 

2.33 

3.87

3.28

Carbonate 

(C03)

Sulfate 

(S0«)

4.63 

5.04

-

Chloride

(Cl)

0.75 

.42

.66 

2.97 

4.15 

6.60

5.36

Fluoride

(F)

0.04

-

Nitrate 

(NOa)

0.04 

.03

"

B

0

a Represents 100 percent of runoff.
RIO GRANDE BASIN Continued

8-3775. RIO GRANDE AT LANGTRY, TEX.

LOCATION. At gaging station at Langtry, Tex., 24.1 river miles above the confluence with the Pecos River a

Tex.

DRAINAGE AREA. 84,795 square miles (United States and Mexico; from International Boundary and Water Commis

RECORDS AVAILABLE. Chemical analyses 1944 to 1962.

REMARKS. Chemical analyses by the U. S. Department of Agriculture, Agricultural Research Service, U.S. Sa

discharge, electrical conductivity of individual water samples and these same chemical analyses for wate

International Boundary and Water Commission Water Bulletin Numbers 31 and 32. Records for previous year

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

October, 1961

December ..... 

January, 1962

May..........

September. . . .

Total or 

weighted 

average

Number 

of 

samples

3 

8

7 

7 

7 

7

6 

9 

8 

10 

9 

7

-

Runoff 

(acrefeet)

68,400 

51,000 

50 , 000 

49,326 

41 , 001 

38,089

28,852 

33,295 

60,201 

106,127 

41,477 

150,641

718,600

Silica 

(Si02) 

ppm

28 

22

~

Equivalents per million

Calcium 

(Ca)

3.16 

4.16 

4.26 

4.08 

3.84 

4.04

3.56 

3.80 

3.55 

3.70 

4.36 

5.05

4.08

Magnesium 

(Mg)

1.82 

1.50 

1.54 

1.68 

1.76 

1.62

1.60 

1.58 

.72 

.65 

.90 

.57

1.15

Sodium 

(Na)

4.60 

5.04 

5.55 

5.23 

5.05 

5.16

4.14 

4.16 

3.05 

3.49 

4.00 

3.50

4.20

Potassium 

(K)

0.13 

.15

-

Bicarbonate 

(HCOj)

2.90 

3.05 

3.15 

2.85 

2.50 

2.80

2.70 

2.75 

2.70 

2.65 

3.17 

3.36

2.94

Carbonate 

(C03)

Sulfate 

(S04 )

5.04 

5.82 

6.26 

6.14 

6.12 

6.14

4.91 

5.00 

3.68 

4.28 

4.77 

4.52

5.02

Chloride 

(Cl)

1.72 

1.98 

2.05 

2.05 

2.10 

2.05

1.80 

1.95 

1.17 

1.10 

1.50 

1.37

1.61

Fluoride

(F)

0.10 

.06

--

Nitrate 

(N03)

0.04 

.05 

.06 

.05 

.06 

.05

.02 

.01 

.03 

.04 

.05 

.05

0.04

B
RIO GRAKDE BASIN Continued 

8-4590. RIO GRANDE AT LAREDO, TEX.

LOCATION. At gaging station, 0.9 mile downstream from the highway bridge between Laredo, Tex. and Nuevo Lar

American Dam at El Paso, Tex.

DRAINAGE AREA. 135,978 square miles (United States and Mexico; from International Boundary and Water Commis

RECORDS AVAILABLE. Chemical analyses: July 1955 to September 1962.

REMARKS --Chemical analyses by the U. S. Department of Agricultures, Agricultural Research Service, U. S. Sa

discharge, electrical conductvity of individual water samples, and these same chemical analyses for water 

International Boundary and Water Commission Water Bulletin Numbers 31 and 32. Records for previous years 

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

October, 1981

January, 1962

May..........

September. . . . 

Total or 

weighted 

average

Number 

of 

samples

31 

30 

31 

31 

28 

31

30 

31 

30 

31 

31 

30

-

Runoff 

(acrefeet)

152,600 

135,700 

120,400 

115,281 

86,268 

76 , 553

102,329 

66,363 

93 , 909 

108,668 

77,610 

176,192

1,312,000

Silica 

(Si02) 

ppm

24 

22

"

-

Equivalents per million

Calcium 

(Ca)

4 

4 

5 

3.56

5

4 

4 

4 

3.68 

3.51 

4

4

Magnesium 

(Mg)

82 

86 

.30

1.88 

28 

39

82 

84 

40 

1.06 

.87 

.46'

.88

Sodium

(Na)

3.48 

3.53 

4.47 

4.56 

4.80 

5.27

4.36 

4.09 

3.18 

3.88 

4.01 

3.10

3.95

Potassium 

(K)

0.10 

.15

-

Bicarbonate 

(HCOj)

2.75 

2.77 

2.98 

2.70 

2.15 

2.27

2.30 

2.31 

2.65 

2.50 

2.47 

2.42

2.55

CarOo nate 

(C03)

Sulfate 

(S04 )

4.03

3.85 

3.90

--

Chloride

(Cl)

2.05 

2.40 

3.15 

3.30 

3.75 

4.25

3.50 

3.50 

2.29 

2.36 

2.20 

1.56

2.71

Fluoride

(F)

0.05 

.04

-

Nitrate 

(NO,)

0.07

'.09 

.07

--

Bo

(

p

0.
RIO GRANDE BASIN Continued 

8-4613. RIO GRANDE AT FALCON, DAM-U. S. TAILRACE

LOCATION.~U. S. Tailrace at Falcon Dam.

DRAINAGE AREA. 164,482 square miles (from International Boundary and Water Commission Water Bulletin Number 

RECORDS AVAILABLE. Chemical analyses: July 1955 to September 1962.

REMARKS. Chemical analyses are by the U. S. Department of Agriculture, Agricultural Research Service, U. S

discharge, electrical conductivity of individual water samples and these same chemical analyses for water 

International Boundary and Water Commission Bulletin Numbers 31 and 32. Records for previous years are 

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

October, 1961

January, 1962

M« v

July.........

September. . . .

Total or 

weighted 

average

Number 

of 

samples

10 

6 

12 

13 

12 

9

12 

13 

12 

12 

13 

9

~

Runoff

(acrefeet)

328,734 

193,701 

171,763 

280,943 

367,384 

63,879

222,174 

435,299 

367,596 

73,596 

69,337 

36,407

2,611,000

Silica 

(Si02) 

ppm

13 

12

-

Equivalents per million

Calcium 

(Ca)

2.86 

3.22 

3.18 

3.28 

3.43 

3.06

3.48 

3.36 

3.32 

3.23 

3.21 

3.25

3.26

Magnesium 

(Mg)

1.62 

1.18 

1.33 

1.32 

1.21 

1.71

1.24 

1.36 

1.30 

1.40 

1.33 

1.36

1.34

Sodium

(Na)

3.47 

3.53 

3.61 

3.46 

3.50 

3.62

3.74 

4.04 

4.08 

4.32 

4.42 

4.47

3.76

Potassium 

(K)

0.13 

.14

-

Bicarbonate 

(HCOa)

2.05 

2.17 

2.20 

2.21 

2.25 

2.30

2.35 

2.27 

2.30 

2.20 

2.16 

2.17

2.23

Carbonate 

(C03)

Sulfate 

(S04 )

3.44 

3.48 

3.55 

3.60 

3.62 

3.75

3.74 

3.83 

3.89 

3.95 

3.99 

4.07

3.69

Chloride 

(CD

2.45 

2.50 

2.45 

2.30 

2.40 

2.45

2.55 

2.75 

2.83 

2.94 

2.93 

3.05

2.58

Fluoride

(F)

0.05 

.03

-

Nitrate 

(NOJ

0.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0.01

B
RIO GRANDE BASIN Continued 

8-3845. PECOS RIVER BELOW ALAHOGORDO DAM, N. HEX.

LOCATION.--At gaging station, 1,200 feet downstream from Alamogordo Dam, 1.5 miles downstream from Alamogo

De Baca County. » 

DRAINAGE AREA. 4,390 square miles, approximately (contributing area). 

RECORDS AVAILABLE. Chemical analyses: June 1937 to September 1962.

Water temperatures: June 1959 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum dally, 1,890 micromhos Apr. 23; minimum dally, 1,330 ml

Sodlum-adsorptlon-ratlo: Maximum, 0.84 Feb. 1-28; minimum, 0.68 Oct. 1-31. 

EXTREMES, 1937-62. SpecifIc conductance: Maximum dally, 3,200 mlcromhos Jan. 14, 1948; minimum dally, 51

Percent sodium: Maximum, 19 July 1, 3-10, 1947; minimum, 1 Feb. 21-28, 1950.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not Include potassium (K). Re

available In district office at Albuquerque, N. Hex.

Chemical analyses, water year October 1981 to September 196

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-31, 1962.

Total or 

weighted 

average

Runoff 

(acrefeet)

5,847 

1,749 

1,574 

990 

944 

31,789

4,255 

19,430 

29,455 

4,513 

18,692 

16,304

135,600

Silica

(sicg

ppm

19.0 

18.0 

16.0 

18.0 

18.0 

16.0

14.0 

15.0 

13.0 

15.0 

14.0 

15.0

15.0

Equivalents per million

Calcium 

(Ca)

12.23 

13.57 

14.37 

14.87 

15.17 

16.02

16.87 

16.37 

16.27 

17.02 

15.72 

16.07

15.92

Magnesium 

(Mg)

2.06 

2.71 

2.63 

2.71 

3.62 

3.21

3.13 

3.21 

3.13 

3.21 

2.71 

2.80

3.01

Sodium

(Na)

1.83 

2.26 

2.31 

2.44 

2.57 

2.48

2.57 

2.44 

2.39 

2.48 

2.26 

2.35

2.38

Potassium 

(K)

Bicarbonate 

(HCOj)

1.97 

2.13 

2.20 

2.16 

2.20 

2.20

2.20 

2.10 

2.03 

2.07 

1.80 

1.92

2.04

Carbonate 

(C03)

Sulfate 

(S0t)

12.53 

14.62 

15.20 

15.99 

17.16 

17.41

18.16 

17.99 

17.70 

18.49 

16.99 

17.57

17.29

Chloride

(CD

1.50 

1.72 

1.86 

1.97 

2.09 

2.12

2.23 

2.12 

2.12 

2.12 

1.86 

1.89

2.02

Fluoride

(F)

Nitrate

(Meg

0.01 

.01 

.02 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.01

0.01

Bo

(

P
RIO GRANDE BASIN Continued 

8-3965. PECOS RIVER NEAR ARTESIA, N. MEX.

LOCATION. At gaging station at bridge on State Highway 83, 4.3 miles east of Artesia, Eddy County, 7.0 

north of McMillan Dam.

DRAINAGE AREA. 15,300 square miles, approximately (contributing area). 

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1962.

Water temperatures: April 1949 to September 1962.

Sediment records: January 1949 to September 1962. 

EXTREMES, 1961-62. Specific conductance, Maximum daily, 16,600 micromhos May 25, 26; minimum daily, 682 

Percent sodium: Maximum, 63 May 26-26; minimum, 17 Sept. 1-10.

Sodium-adsorption-ratio: Maximum, 20.65 May 25-26; minimum, 0.98 Aug. 1-2. 

EXTREMES, 1937-62. Specific conductance: Maximum daily, 22,600 micromhos June 23, 1959; minimum daily, 

Percent sodium: Maximum, 71 May 16, 1950; minimum, 12 Mar. 25-31, 1951. 

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

Chemical analyses, water year October 1961 to Septembe

Date 

of 

collection

Oct. 1-10, 1961.

Jan. 1-11, 1962.

Mar . 29-31 ......

Runoff 

(acrefeet)

403 

331 

1,114 

303 

1,523

613 

579 

2,460 

2,321 

6,395

1,807 

258 

1,494 

1,910 

3,466

314 

962 

960 

23 , 064 

395

Silica 

(Si02) 

ppm

22.0 

20.0 

19.0 

21.0 

19.0

21.0 

27.0 

21.0 

20.0 

18.0'

18.0 

22.0 

23.0 

17.0 

13.0

13.0 

12.0 

33.0 

16.0 

16.0

Equivalents per million

Calcium 

(Ca)

32.88 

31.44 

26.70 

28.69 

14.67

16.57 

20.86 

22.46 

25.95 

26.35

27.94 

31.19 

28.69 

25.95 

27.94

30.94 

31.19 

30.19 

20.46 

22.85

Magnesium 

(Mg)

19.91 

15.79 

12.50 

13.90 

4.44

5.84 

8.97 

9.54 

11.85 

12.09

12.83 

15.22 

14.89 

12.09 

14.64

15.88 

16.78 

12.17 

4.36 

6.99

Sodium

(Na)a

63.95 

47.85 

32.63 

40.46 

10.61

14.88 

22.79 

25.06 

33.84 

34.02

38.37 

48.72 

44.37 

34.54 

43.94

49.16 

51.33 

32.63 

6.05 

15.09

Potassium 

(K)

Bicarbonate 

(HCOa)

2.52 

2.29 

2.16 

2.43 

2.66

2.52 

2.52 

2.72 

3.13 

3.31

3.13 

2.77 

3.05 

3.25 

2.44

2.90 

2.82 

2.13 

2.67 

2.44

Carbonate 

(CO,,)

Sulfate 

(S04 )

46.01 

41.43 

35.60 

37.48 

16.72

19.49 

25.82 

27.48 

32.48 

33.10

36.02 

42.06 

38.31 

33.10 

38.10

41.64 

43.10 

40.60 

22.69 

27.48

Chloride 

(CD

69.11 

50.78 

33.85 

42.88 

10.16

15.29 

23.70 

26.38 

36.39 

35.83

39.78 

50.21 

46.55 

36.39 

45.98

51.91 

53.60 

32.16 

5.64 

15.37

Fluoride

(F)

Nitrate 

(NOa)

0.05 

.04 

.05 

.05 

.05

.09 

.11 

.10 

.09 

.08

.04 

.15 

.06 

.07 

.02

.02 

.03 

.01 

.04 

.06

a Determined.
RIO GRANDE BASIN Continued

8-3965. PECOS RIVER NEAR ARTESIA, N. MEX. Continued 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

Apr. 1-4, 1962. . 

Apr. 5-11.......

May 25-26. ......

May 27-29.. .....

May 30-31 .......

June 1-19...... .

July 16-17. .....

July 24-25..... .

July 26-27. .....

Aue. 1-2..... .. .

Runoff 

(acrefeet)

422 

782 

806 

812 

791

442 

73 

309 

2,551 

29,131

145 

260 

127 

177 

109

71 

123 

597 

3,451 

101

192 

97 

58 

95 

109

379 

2,233 

2,241 

1,105 

4.058

Silica 

(Si02) 

ppm

17.0 

18.0 

20.0 

20.0 

19.0

19.0 

18.0 

17.0 

22.0 

18.0

20.0 

17.0 

17.0 

18.0 

18.0

16.0 

21.0 

17.0 

17.0 

17.0

15.0 

17.0 

16.0 

16.0 

15.0

16.0 

15.0 

13.0 

11.0 

17.0

Equivalents per million

Calcium 

(Ca)

26.20 

28.69 

31.69 

34.33 

34.93

36.28 

43.66 

37.28 

23.45 

20.46

19.21 

20.96 

24.45 

27.45 

29.94

29.44 

34.18 

25.95 

11.73 

11.98

14.72 

15.97 

18.71 

21.56 

27.94

25.95 

15.72 

11.73 

5.99 

5.19

Magnesium 

(Mg)

9.38 

12.09 

15.88 

18.67 

18.67

22.54 

28.96 

24.76 

6.33 

3.95

4.77 

6.25 

7.57 

10.20 

12.09

13.00 

16.45 

10.86 

3.04 

3.21

5.18 

6.42 

8.31 

10.28 

14.23

12.42 

3.29 

2.30 

1.15 

1.07

Sodium 

(Na) a

25.36 

34.80 

48.72 

59.60 

60.90

80.04 

124.41 

82.22 

9.44 

5.18

8.96 

13.05 

18.23 

28.28 

37.28

39.85 

55.68 

28.84 

5.92 

9.48

13.70 

18.44 

27.84 

34.80 

54.81

36.11 

6.26 

4.92 

2.48 

1.74

Potassium 

(K)

Bicarbonate

(HCO,,)

2.38 

2.29 

2.43 

2.84 

2.66

2.88 

2.92 

2.75 

2.77 

2.56

2.10 

1.87 

1.64 

1.67 

1.84

1.74 

2.33 

1.75 

2.16 

1.80

1.84 

1.67 

1.48 

1.87 

1.69

1.79 

2.07 

1.84 

2.10 

3.70

Carxmate 

(C03)

Sulfate 

(S04 )

33.10 

38.10 

42.89 

47.47 

47.47

51.43 

62.46 

55.38 

28.52 

22.69

22.28 

25.40 

30.40 

35.60 

38.73

41.02 

45.80 

35.39 

13.74 

14.37

18.28 

20.65 

24.36 

28.32 

37.68

35.19 

18.07 

12.87 

5.33 

2.81

Chloride 

(Cl)

25.81 

35.54 

51.34 

62.63 

64.88

85.76 

130.33 

86.60 

8.04 

4.68

8.86 

13.26 

18.62 

28.21 

38.37

40.06 

58.68 

28.77 

4.80 

8.41

13.88 

18.68 

29.34 

36.67 

56.98

36.67 

5.25 

4.34 

2.31 

1.58

Fluoride

(F)

Nitrate 

(NOJ

0.01 

.03 

.05 

.04 

.04

.05 

.02 

.01 

.02 

.03

.06 

.04 

.02 

.03 

.03

.00 

.03 

.02 

.04 

.09

.05 

.02 

.01 

.01 

.05

.02 

.00 

.01 

.03 

.00

B
Aug. 3, 1962.. .. 

Aug. 4-5. .......

Sept. 15-17.....

Sept. 29-30.....

Total or 

weighted 

average

893 

742

641

268

339

540

524

127,800

15.0 

15.0

18.0

17.0

15.0

14.0

17.0

6.49 

13.87

1 K Q<7

23.70

27.54

26.95

22-. 21

20.97

1.23

9.46

5.35

8.06

11.27

8.23

6.29

2.78 

9.09

15.40

4.74

10.44

18.62

30.97

44.37

29.01

20.05

14.39

2.69 

1.93

1.61

2.49

1.93

2.56

5.16 

15.62

21.24

25.19

29.98

37.48

39.35

33.73

28.32

24.69

2.62 

8.91

4.15

18.62

45.70

30.47

19.89

14.47

--

.00 

.07

.05

.02

.04

.04

.05

0.04

a Determined
RIO GRANDE BASIN Continued 

8-4101. PECOS RIVER BELOW RED BLUFF DAMjNEAR ORLA

LOCATION. Just below dam, 3 miles upstream from Salt (Screwbean) Draw, 5 miles northwest of Orla, Reev

near Orla.

DRAINAGE AREA. 20,720 square miles, approximately (contributing area). 

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1962.

Water temperatures: March 1953 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 14,800 micromhos July 31, Aug. 1; minimum dai

Percent sodium: Maximum, 67 Dec. 1-31; minimum, 60 Feb. 1-28.

Sodium-adsorption-ratio: Maximum, 20.89 Sept. 1-30; minimum, 15.15 Feb. 1-28. 

EXTREMES, 1937-62. Specific conductance: Maximum daily, 24,200 micromhos Sept. 28, 30, 1953; minimum 

Percent sodium: Maximum, 78 Oct. 4-8, 1954; minimum, 9 Aug. 17-19, 1944.

REMARKS. Records of specific conductance of daily samples available in district office at Austin, Tex. 

near Orla. Mean discharge values reported below have been adjusted to exclude inflow from Salt (Scr

sampling point and gaging station.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-31, 1962.

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

Sept. 1-30......

Total or 

weighted 

average

Runoff

(acrefeet)

3,695 

101 

111 

105 

61 

3,265

6,783 

4,747 

3,540 

10,822 

7,133 

4,088

44,450

Silica 

(Si02) 

ppm

18.0 

19.0 

21.0 

17.0 

15.0 

8.3

5.4 

6.3 

6.4 

7.2 

8.5 

9.8

8.3

Equivalents per million

Calcium 

(Ca)

30.29 

30.79 

30.24 

31.94 

32.19 

31.69

31.54 

32.29 

34.48 

34.73 

34.73 

33.48

33.23

Magnesium 

(Mg)

15.96 

17.19 

19.50 

16.70 

17.19 

16.18

17.44 

20.07 

20.24 

22.37 

22.87 

22.05

20.37

Sodium 

(Na)a

86.13 

83.52 

100.92 

75.69 

75.26 

78.30

89.18 

93.96 

101.36 

106.14 

105.71 

110.06

98.28

Potassium 

(K)

Bicarbonate 

(HCOs)

2.03 

2.15 

2.95 

2.47 

2.33 

2.13

1.98 

1.92 

1.93 

1.90 

1.82 

1.87

1.93

Carbonate 

(C03)

Sulfate 

(S04 )

45.60 

44.76 

43.93 

45.39 

45.39 

46.64

46.22 

49.76 

50.18 

54.76 

53.30 

52.67

50.69

Chloride 

(Cl)

84.91 

84.35 

103.81 

76.17 

77.01 

79.55

89.99 

94.79 

103.81 

106.63 

108.04 

110.87

99.25

Fluoride 

(F)

0.06

-

Nitrate 

(N03)

B

a Calculated as sodium (Na).
RIO GRANDE BASIN Continued

8-4474. PECOS RIVER NEAR SHUMLA, TEX.

LOCATION. At gaging station, 13.0 river miles upstream from the Pecos High Bridge and 18.5 river miles ab

fluence is 638.2 river miles below the American Dam at El Paso, Tex.

DRAINAGE AREA. 35,308 square miles (from International Boundary and Water Commission Water Bulletin No. 

RECORDS AVAILABLE. Chemical analyses: January 1955 to September 1962. Chemical analyses for the period 

station near the mouth and for the period February 1935 through June 1954 for a station 4.7 river miles 

REMARKS. Chemical analyses are by the U. S. Department of Agriculture, Agricultural Research Service, U. 

discharge, electrical conductivity for individual water samples, and these same chemical analyses for w

International Boundary and Water Commission Bulletin Numbers 31 and 32. Records of previous years give

and for a station 4.7 river miles upstream at the Pecos High Bridge.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

October, 1961

January, 1962 

February .....

Ma v

September. . . .

Total or 

weighted 

average

Number 

of 

samples

5 

4 

4 

5 

4 

3

5 

4 

4 

5 

3

-

Runoff 

(acrefeet)

11,000 

11,100 

10,400 

9,844 

8,922 

9,098

7,005 

7,075 

7,962 

5,345 

14,030

101,800

Silica 

(SiOa) 

ppm

12 

13

-

Equivalents per million

Calcium 

(Ca)

4.48 

7.20 

8.04 

8.64 

9.08 

9.44

7.80 

7.08 

7.18 

6.45 

4.99

7.18

Magnesium 

(Mg)

4.62 

5.44 

6.06 

6.48 

7.56 

7.16

6.52 

5.52 

5.74 

4.40 

2.56

5.51

Sodium

(Na)

12.24 

17.71 

20.64 

21.90 

24.71 

25.15

22.69 

19.38 

21.49 

17.85 

9.90

18.79

Potassium 

(K)

--

0.21 

.19

-

Bicarbonate 

(HCOJ

2.50 

2.85 

2.85 

2.71 

2.55 

2.55

2.07 

2.25 

2.15 

2.19 

2.68

2.54

Carbonate 

(CO,)

0.24

Sulfate 

(SO.)

5.58 

8.29 

9.51 

10.37 

11.46 

11.86

10.20 

8.84 

9.37 

7.73 

4.29

8.59

Chloride

(CD

13.25 

19.62 

22.50 

23.75 

27.38 

27.75

25.00 

21.72 

23.58 

19.38 

10.40

20.57

Fluoride

(F)

-

0.06 

.06

-

Nitrate 

(NO,)

0.04 

.04 

.04 

.04 

.03 

.03

.01 

.01 

.01 

.01 

.05

.03
PART 9. COLORADO RIVER BASIN

COLORADO RIVER MAIN STEM 

9-711. COLORADO RIVER NEAR GLENTOOD SPRINGS, COLO.

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

DRAINAGE AREA. 4,560 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1941 to September 1962.

Water temperatures: May 1949 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 727 micromhos Sept. 8, 23; minimum daily, 241 m

Percent sodium: Maximum, 44 Mar. 1; minimum, 7 Apr. 8.

Sodium-adsorption-ratio: Maximum, 1.96 Dec. 1-31; minimum, 0.22 Apr. 8. 

EXTREMES, 1941-62. Specific conductance: Maximum daily, 2,260 micromhos Aug. 10, 1947; minimum daily, 1

Percent sodium: Maximum, 53 Dec. 11-20, 1954; minimum, 7 Apr. 8, 1962.

REMARKS. Records of specific conductance of daily samples available in district office at Salt Lake City

Colorado River at Glenwood Springs, Colo.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-22, 1961.

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

Jan. 1-31, 1962.

Apr. 17-30......

July 24-31......

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

97,484 

30,633 

80 , 569 

77,413 

79,749 

90,581

3,174 

65,752 

37,527 

15,608 

39,001

4,998 

57,743 

244,863 

539,369 

454,671

151,135 

94,302 

42,605 

110,309 

74 , 083

2,391,600

Silica 

(Si02) 

ppm

Calcium 

(Ca)

3 

3 

3 

3 

3 

3

3 

2 

3 

3 

3

3 

3 

2 

2 

2

2 

2 

3 

3 

4

2

Equivalents per million

Magnesium 

(Mg)

26 

42 

76 

42 

18 

.22

.12 

76 

78 

22 

48

.72 

.54 

.76 

.40 

.36

.28 

.98 

.62 

.80 

.20

.96

Sodium 

(Na)a

2.00 

2.35 

2.52 

2.57 

2.35 

2.13

2.44 

1.48 

2.18 

1.31 

1.39

.30 

1.09 

.52 

.61 

.61

.65 

1.17 

1.65 

2.18 

2.65

1.18

Potassium 

(K)

Bicarbonate 

(HCOj)

1.93 

2.00 

2.08 

2.03 

2.02 

1.95

2.00 

1.79 

2.11 

2.16 

2.28

3.51 

2.34 

2.16 

1.77 

1.61

1.48 

1.77 

2.02 

2.11 

2.23

1.87

Car30 nate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S0<)

1.69 

1.73 

1.89 

1.69 

1.50 

1.60

1.64 

1.21 

1.89 

1.39 

1.54

.48 

1.48 

.83 

.92 

.98

.98 

1.50 

1.94 

1.96 

2.19

1.25

Chloride 

(Cl)

1.64 

2.03 

2.31 

2.26 

2.00 

1.81

1.92 

1.24 

1.97 

.96 

1.04

.03 

.79 

.27 

.34 

.39

.48 

.90 

1.33 

1.92 

2.45

0.92

Fluoride 

(F)

Nitrate 

(N03)

B

a Calculated Na + K as Na.
COLORADO RIVER MAIN STEM Continued 

9-1805. COLORADO RIVER NEAR CISCO, UTAH

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

97 miles upstream from Green River, and 235 miles upstream from San Juan River. 

DRAINAGE AREA. 24,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1962.

Water temperatures: May 1949 to September 1959.

Sediment records: May 1930 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,120 micromhos Sept. 23; minimum daily, 354 m

Percent sodium: Maximum, 50 Feb. 1-10; minimum, 19 May 1-17.

Sodium-adsorption-ratio: Maximum, 4.24 Sept. 1-30; minimum, 0.63 May 1-17. 

EXTREMES, 1941-52, 1953-62. Specific conductance: Maximum daily, 4,820 micromhos Dec. 13, 1957; minimum 

Percent sodium: Maximum, 57 Mar. 2, 4, 1955; minimum, 18 June 1-10, 1957. 

REMARKS. Records of specific conductance of daily samples available in district office at Salt Lake City

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-8, 1961..

Jan. 1-31, 1962.

Mar. 31-Apr. 13.

Apr. 21-30......

July 1-13.......

Runoff 

(acrefeet)

98,523 

61,765 

196,683 

251,821 

43 , 831

54,863 

98,271 

182,249 

82,017 

179,298

234,327 

204,071 

264,635 

596 , 826 

1,091,821

511,220 

183,471 

1,168,661 

47,405 

486 , 823

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

5.29 

7.34 

5.34 

5.54 

5.39

5.49 

5.94 

5.94 

4.94 

5.04

4.54 

4.09 

3.24 

2.40 

2.54

2.64 

3.14 

3.14 

4.74 

2.79

Magnesium 

(Mg)

2.30 

1.81 

2.22 

2.47 

2.71

2.88 

3.29 

2.22 

2.96 

2.06

2.39 

1.56 

.82 

.74 

.90

1.23 

.99 

.76 

1.40 

.99

Sodium 

(Na)

4.05 

5.13 

4.44 

6.00 

5.52

6.70 

8.53 

6.53 

7.92 

4.96

5.87 

3.13 

1.52 

i96 

.83

1.48 

1.83 

1.17 

2.87 

1.48

Potassium 

(K)

Bicarbonate 

(HC03)

2.77 

2.88 

2.82 

2.87 

2.85

2.90 

2.92 

3.08 

2.82 

2.95

2.66 

2.69 

2.59 

2.11 

2.47

2.18 

2.43 

1.98 

2.39 

2.25

Carionate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.07 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

6.60 

8.85 

6.58 

7.25 

7.39

7.50 

8.72 

7.08 

6.93 

6.23

6.04 

4.29 

2.23 

1.48 

1.29

2.29 

2.77 

2.02 

5.95 

2.23

Chloride 

(Cl)

2.14 

2.45 

2.48 

3.75 

3.13

4.46 

5.95 

4.34 

5.92 

2.76

3.95 

1.69 

.71 

.39 

.45

.85 

.68 

.54 

.59 

.79

Fluoride 

(F)

Nitrate 

(N03)

0.10 

.12 

.08 

.14 

.26

.16 

.18 

.16 

.16 

.13

.12 

.09 

.07 

.06 

.03

.04 

.05 

.03 

.07 

.04
COLORADO RIVER MAIN STEM Continued

9-1805. COLORADO RIVER NEAR CISCO, UTAH Continued 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

July 14-21, 1962 

July 22-31......

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

149,554 

128,172 

128,465 

77,564 

173,038

6 , 696 , 000

Silica 

(S102) 

ppm

Equivalents per million

Calcium 

(Ca)

3.54 

4.79 

5.94 

7.63 

9.28

3.76

Magnesium 

(Mg)

1.73 

2.30 

3.13 

4.44 

5.18

1.49

Sodium 

(Na)

2.78 

3.74 

5.00 

6.70 

11.40

2.77

Potassium 

(K)

Bicarbonate 

(HCOa)

2.25 

2.59 

2.90 

3.15 

3.56

2.45

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

4.12 

6.06 

8.14 

11.87 

14.82

3.79

Chloride 

(CD

1.64 

2.17 

2.93 

3.61 

7.33

1.61

Fluoride 

(F)

Nitrate 

(N03)

0.06 

.06 

.09 

.15 

.14

0.07
COLORADO RIVER MAIN STEM Continued 

9-3800. COLORADO RIVER AT LEES FERRY, ARIZ.

LOCATION. At gaging station at head of Marble Gorge at Lees Ferry, Coconino County, just upstream from 

Canyon Dam, 28 miles downstream from Utah-Arizona State line, 61.5 miles upstream from Little Colora

DRAINAGE AREA. 107,900 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: January to July 1926, October 1926 to June 1927, October 1928 t

October 1947 to September 1962.

Water temperatures: July 1949 to September 1962.

Sediment records: October 1928 to December 1933, November 1942 to September 1944, October 1947 to Se

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,400 micromhos Sept. 26; minimum daily, 355 m

Percent sodium: Maximum, 42 Mar. 1-31; minimum, 21 May 8-17. 

Sodium-adsorption-ratio: Maximum, 3.31 Sept. 26; minimum, 0.70 May 13-17. 

EXTREMES, 1942-45, 1947-62. Specific conductance: Maximum daily, 2,430 micromhos Oct. 15, 1960; minimu

Percent sodium: Maximum, 46 Mar. 2, 4, 7, 10, 1944; minimum, 17 June 1-11, 1958.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). 

available in district office at Albuquerque, N. Hex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1, 1961. .. .

Oct. 14-15......

Oct. 16-31......

Jan. 1-31, 1962.

Feb. 19-26......

Feb. 27-28......

Apr. 1-8........

Runoff 

(acrefeet)

23,008 

305,137 

62,678 

334,175 

91,636 

435,253

211,152 

168,966 

348,635 

444,139 

304 , 979 

41,653

598,274 

476,826 

638,182 

407,643 

868,185 

848,469

Silica 

(Si02) 

ppm

16.0 

16.0

Equivalents per million

Calcium 

(Ca)

8.03 

5.39 

7.29 

4.74 

4.39 

5.29

5.24 

5.59 

5.39 

5.19 

4.39 

4.99

4.89 

5.39 

4.34 

4.49 

3.09 

2.99

Magnesium 

(Mg)

2.47 

2.06 

2.30 

2.14 

1.73 

2.47

2.71 

3.29 

2.88 

2.55 

1.89 

2.39

2.39 

2.22 

1.65 

1.48 

.90 

.99

Sodium

(Na)

4.57 

3.65 

3.92 

3.78 

3.70 

4.57

4.92 

6.00 

5.66 

5.18 

3.87 

5.13

5.35 

4.31 

3.13 

1.96 

1.39 

1.22

Potassium 

(K)

0.13 

.14

Bicarbonate 

(HCOs)

4.70 

3.26 

3.26 

2.93 

2.79 

3.15

3.31 

3.57 

3.41 

3.65 

3.39 

3.28

3.33 

4.15 

3.70 

4.43 

3.03 

3.11

Car30 nate 

(CO,)

Sulfate 

(SO,)

6.85 

7.25

Chloride 

(CD

2.31 

3.33

Fluoride

(F)

0.02 

.03

Nitrate

(N03)

0.09 

.16
COLORADO RIVER MAIN STEM Continued

9-3800. COLORADO RIVER AT LEES FERRY, ARIZ. Continu

Chemical analyses, water year October 1961 to September 1962 C

Date 

of 

collection

May 8-12, 1962..

June 10-July 2. .

Aug. 30-Sept. 17

Sept. 27-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

597,025 

796,165 

551,564 

839,603 

722,797 

2,349,878

883 , 855 

477,223 

159,233 

327,070 

122,095

158,206 

38,733 

52,189 

13,964 

71,786

14,770,000

Silica 

(Si02) 

ppm

21.0 

11.0

-

Equivalents per million

Calcium 

(Ca)

3.49 

2.89 

2.50 

2.69 

3.09 

2.59

3.39 

3.89 

4.39 

4.44 

4.99

5.79 

6.89 

7.24 

12.97 

8.73

3.79

Magnesium 

(Mg)

0.99 

.81 

.54 

.99 

1.23 

1.07

1.15 

1.32 

1.81 

2.30 

2.80

3.70 

4.28 

3.45 

5.26 

4.28

1.53

Sodium 

(Na)

1.22 

.96 

.91 

1.39 

1.70 

1.22

1.39 

2.09 

2.83 

3.74 

4.65

5.96 

6.87 

5.96 

10.01 

6.79

2.50

Potassium 

(K)

0.08 

.16

--

Bicarbonate 

(HCOj)

3.44 

2.92 

2.38 

2.52 

2.82 

2.56

3.10 

3.20 

3.41 

3.00 

3.13

3.03 

3.15 

3.49 

3.93 

3.93

3.10

Carbonate 

(CO,)

Sulfate 

(S04)

1.87 

9.33

-

Chloride 

(CD

0.42 

3.07

~

Fluoride 

(F)

0.03 

.04

--

Nitrate 

(N03)

0.03 

.07

"
COLORADO RIVER MAIN STEM Continued

9-4025. COLORADO RIVER NEAR GRAND CANYON, ARIZ.

LOCATION. At gaging station on left bank at Kaibab Bridge, 0.2 mile upstream from Bright Angel Creek, 1

Coconino County, 26 miles downstream from Little Colorado River, and 267 miles upstream from Hoover D

DRAINAGE AREA. 137,800 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: August 1925 to November 1942, September 1943 to September 1962.

Water temperatures: October 1936 to October 1942, September 1943 to September 1962.

Sediment records: October 1925 to November 1942, September 1943 to September 1962. 

EXTREMES, 1961-62.--Specific conductance: Maximum daily, 2,180 micromhos Sept. 27-30; minimum daily, 43

Percent sodium: Maximum, 46 Dec. 17-31; minimum, 23 July 1-6.

Sodium-adsorption-ratio: Maximum, 3.62 Dec. 22-31; minimum, 87 July 1-6. 

EXTREMES, 1937-42, 1943-62. Specific conductance: Maximum daily, 2,900 micromhos Sept. 6, 1940; minimum 

Percent sodium (1941-42, 1943-62): Maximum, 50 Jan. 12-14, 1957; minimum, 16 June 11-20, 1952.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). R

available in district office at Albuquerque, N. Mex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1- 

Nov. 30, 1961.

Jan. 1-31, 1962.

Feb. 17-28......

Apr. 13, 16-20..

May 8-23 ........

Runoff 

(acrefeet)

1,341,798 

249,473 

40,423 

119,266 

368,557

134,321 

183,630 

514,116 

610,203 

755,464 

394 , 750

114,645 

691 , 200 

511,101 

540,932 

340,542 

2.182.453

Silica 

(Si02) 

ppm

18.0 

18.0

18.0

Equivalents per million

Calcium 

(Ca)

5.59 

5.44 

5.19 

6.04 

5.69

5.14 

5.24 

4.49 

5.14 

5.09 

4.09

2.79 

3.29 

2.89 

2.64 

3.49 

2.74

Magnesium 

(Mg)

2.63 

2.71 

3.13 

3.21 

2.96

2.96 

2.14 

1.89 

2.47 

2.14 

1.65

1.15 

1.23 

.99 

.99 

.90 

.99

Sodium 

(Na)

5.74 

5.83 

7.05 

7.79 

6.83

6.66 

6.09 

4.18 

6.18 

4.35 

3.09

2.39 

1.83 

1.39 

1.31 

1.39 

1.22

Potassium 

(K)

0.15 

.15

.08

Bicarbonate 

(HCOJ

3.57 

3.47 

3.57 

3.82 

3.72

3.51 

3.98 

3.64 

3.70 

4.36 

3.64

2.29 

3.38 

3.08 

2.85 

3.47 

2.79

Carbonate 

(CO^

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.27 

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

7.14 

6.43

1.60

Chloride 

(Cl)

4.57 

3.55

.56

Fluoride 

(F)

0.02 

.03

.02

Nitrate 

(NOJ

0.14 

.09

.04

B
COLORADO RIVER MAIN STEM Continued

9-4025. COLORADO RIVER NEAR GRAND CANYON, ARIZ. Contin

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

May 24-31, 1962.

Sept. 27-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

652,165 

803,107 

2,046,942 

594,446 

635,504 

142,036

449,177 

396 , 744 

114,942 

250,270 

68,033

15,250,000

Silica 

(S10J 

ppm

19.0

~

Equivalents per million

Calcium 

(Ca)

2.99 

3.04 

2.79 

3.14 

3.49 

3.39

3.64 

4.59 

5.09 

6.39 

11.48

3.82

Magnesium 

(Mg)

1.15 

1.23 

1.07 

1.07 

1.07 

1.40

1.65 

2.63 

3.37 

3.37 

4.20

1.61

Sodium 

(Na)

1.61 

1.87 

1.35 

1.26 

1.70 

2.13

3.00 

4.61 

5.61 

7.05 

9.22

2.96

Potassium 

(K)

0.11

Bicarbonate 

(HCO,)

2.93 

2.79 

2.70 

3.02 

3.15 

2.95

2.87 

3.36 

3.38 

3.49 

3.92

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.00

0.00 

.00 

.00 

.00 

.00

Sulfate 

(S04)

3.66

Chloride 

(CD

1.81

Fluoride 

(F)

0.02

Nitrate 

(NOa)

0.04

Bo

(

p

0
COLORADO RIVER MAIN STEM Continued 

9-4215. COLORADO RIVER BELOW HOOVER DAM, ARIZ.-NEV.

LOCATION. At Hoover Dam, State line between Mohave County, Ariz., and Clark County, Nev., just downstre

DRAINAGE AREA. 167,800 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: October 1939 to September 1962. 

Water temperatures: October 1941 to September 1962.

Chemical analyses, water year October 1961 to September 19

Date 

of 

collection

Oct. 2, 1961. ...

Jan. 2, 1962....

Sept . 4 .........

Sept. 14........

Total or 

weighted 

average a

Runoff

(acrefeet)

47,405 

379,240 

275 , 901 

82,711 

248,132 

33,640

252,298 

19,071 

286 , 066 

28,066 

420,992 

63,868

510,942 

32,430 

486,446 

106,314 

398,678 

58,314

466,512 

29,653 

444,793 

117,818 

412,364

8 , 304 , 000

Silica 

(Si02) 

ppm

12.0 

12.0

12.0 

12.0

12.0 

12.0

12.0

Equivalents per million

Calcium 

(Ca)

4.94 

4.94

5.14 

5.14

5.09 

5.09

5.04

Magnesium 

(Mg)

2.30 

2.30

2.14 

2.14

2.14 

2.14

2.14

Sodium

(Na)

3.96 

3.96

4.35 

4.35

4.48 

4.48

4.26

Potassium 

(K)

0.10 

.10

.11 

.11

.11 

.11

0.11

Bicarbonate 

(HCO,)

2.61 

2.61

2.67 

2.67

2.72 

2.72

2.66

Carxinate

(COa)

0.00 

.00

.00 

.00

.00 

.00

0.00

Sulfate 

(80.)

6.29 

6.29

6.62 

6.62

6.48 

6.48

6.52

Chloride 

(Cl)

2.34 

2.34

2.51 

2.51

2.54 

2.54

2.48

Fluoride 

(F)

0.02 

.02

.01 

.01

.02 

.02

0.02

Nitrate 

(NO,)

0.05 

.05

.06 

.06

.07 

.07

0.06

a Includes estimated data for missing periods. Represents 100 percent of runoff for water year Octob
DIVERSIONS AND RETURN FLOWS AT AND BELOW IMPERIAL DA

9-5255. YUMA MAIN CANAL BELOW COLORADO RIVER SIPHON, AT YUM

LOCATION. At gaging station on Yuma Main Canal below Colorado River siphon on Arizona Side of river, 3.5 

0.2 mile downstream from upper highway bridge over Colorado River at Yuma, Yuma County. 

RECORDS AVAILABLE. Chemical analyses: September 1926 to September 1928, October 1942 to September 1962.

Water temperatures: May 1960 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,600 micromhos July 7; minimum daily, 1,140 mi

Percent sodium: Maximum, 46 Feb. 1-28; minimum, 36 July 1-2, 7.

Sodium-adsorption-ratio: Maximum, 3.21 Feb. 1-28; minimum, 2.52 July 7. 

EXTREMES, 1943-62. Specific conductance: Maximum daily, 1,600 micromhos July 7, 1962; minimum daily, 79

Percent sodium: Maximum, 46 Nov. 21-30, 1953, Feb. 1-28, 1962; minimum, 32 several periods in 1945, 19

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). R

available in district office at Albuquerque, N. Hex.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-31, 1962.

Aug. 1-12, 14-31

Total or 

weighted 

average

Runoff 

(acrefeet)

29,576 

21,124 

9,346 

15,372 

23 , 659 

29,514

32,608 

37,815 

13 , 924 

6,141 

14 , 043 

1,388

4,649 

1,480 

31,989 

36,774 

1,418 

40,284

351,000

Silica 

(Si02) 

ppm

17.0 

14.0 

17.0 

16.0 

17.0 

16.0

15.0 

15.0 

15.0 

14.0 

16.0 

10.0

14.0 

12.0 

15.0 

18.0 

13.0 

15.0

16.0

Equivalents per million

Calcium 

(Ca)

5.09 

4.99 

5.09 

4.89 

5.09 

4.94

4.79 

4.89 

4.99 

5.89 

4.99 

6.49

4.84 

6.89 

4.84 

4.84 

5.89 

4.74

4.94

Magnesium 

(Mg)

2.14 

2.47 

2.55 

2.39 

2.30 

2.22

2.22 

2.47 

2.39 

2.71 

2.39 

3.54

2.47 

3.54 

2.47 

2.39 

3.37 

2.47

2.39

Sodium 

(Na)

5.61 

5.87 

6.26 

5.92 

6.18 

5.48

5.57 

5.92 

5.83 

5.83 

5.74 

5.66

5.66 

5.74 

5.66 

5.74 

5.83 

5.92

5.79

Potassium 

(K)

Bicarbonate 

(HCO,,)

2.72 

2.82 

2.98 

2.69 

2.85 

2.74

2.56 

2.70 

2.74 

2.39 

2.70 

1.70

2.74 

1.54 

2.69 

2.67 

2.43 

2.62

2.69

Carbonate 

(C03)

Sulfate 

(S04)

6.70 

6.79 

7.06 

6.83 

6.87 

6.58

6.64 

6.89 

6.89 

7.00 

6.87 

7.00

6.83 

7.00 

6.87 

6.93 

6.95 

6.95

6.83

Chloride

(CD

3.58 

3.72 

4.15 

3.61 

3.75 

3.19

3.33 

3.50 

3.44 

5.02 

3.41 

7.14

.33 

7.73 

3.36 

3.44 

5.70 

3.55

3.52

Fluoride

(F)

Nitrate 

(N03)

0.02 

.03 

.02 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.03 

.03 

.03

0.03

B
GUNNISON RIVER BASIN 

9-1525. GUNNISON RIVER NEAR GRAND JUNCTION, COLO.

LOCATION. At bridge on State Highway 141, 180 feet downstream from gaging station, 0.4 mile downstream f

and 8 miles southeast of Grand Junction, Mesa County.

DRAINAGE AREA. 7,870 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1931 to September 1962.

Water temperatures: April 1949 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,010 micromhos Aug. 29; minimum daily, 287 mic

Percent sodium: Maximum, 38 Apr. 30; minimum, 11 Apr. 17.

Sodium-adsorption-ratio: Maximum, 2.11 Sept. 1-30; minimum, 0.34 Apr. 17. 

EXTREMES, 1941-62. Specific conductance: Maximum daily, 2,730 micromhos Sept. 10, 1956; minimum daily, 

Percent sodium (1950-62): Maximum, 39 Apr. 30, 1962; minimum, 10 June 2-5, 10, 1952.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Salt Lake City, Utah.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1- 

Nov. 30, 1961.

Jan. 1-31, 1962.

Aug. 1-9........

Aug. 10-31......

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

193,345 

56 , 999 

52,572 

58,092 

53,433

9,562 

84,085 

16,860 

260,628 

23,802 

52,798

343 , 200 

178,512 

48,063 

428,600 

138,573

36 , 793 

43,747 

20,422 

31,113 

62,777

2,194,000

Silica 

(S102) 

ppm

Equivalents per million

Calcium 

(Ca)

9 

11 

11 

11 

9

7 

5 

3 

2 

3 

3

2 

3 

4 

3 

4

7 

9 

12 

15 

15

5

Magnesium 

(Mg)

76 

60 

00 

00 

36

36 

44 

92 

92 

56 

28

72 

76 

44 

44 

56

16 

56 

80 

20 

72

.56

Sodium 

(Na)

4.18 

4.31 

4.61 

4.44 

4.31

2.78 

1.48 

.48 

.52 

2.22 

.83

.52 

.87 

1.22 

.87 

1.31

2.04 

3.05 

4.00 

5.70 

5.92

1.81

Potassium 

(K)

Bicarbonate 

(HCO,)

3.28 

3.82 

3.80 

3.59 

3.20

3.06 

2.95 

2.82 

2.13 

2.16 

1.97

1.80 

1.82 

2.20 

1.82 

2.15

2.67 

3.20 

3.52 

3.65 

3.93

2.40

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

-

Sulfate 

(S04 )

10.35 

11.70 

11.43 

11.47 

10.04

6.75 

3.77 

1.54 

1.25 

3.60 

2.06

1.37 

2.73 

3.35 

2.42 

3.58

6.31 

9.10 

12.87 

16.72 

17.22

4.81

Chloride 

(CD

0.31 

.39 

.39 

.39 

.42

.34 

.18 

.03 

.04 

.03 

.06

.07 

.10 

.11 

.06 

.14

.23 

.31 

.39 

.51 

.48

0.16

Fluoride 

(F)

Nitrate 

(N03)

B
GREEN RIVER BASIN 

9-2345. GREEN RIVER NEAR GREENDALE, UTAH

LOCATION. At gaging station, 0.5 mile downstream from Flaming Gorge Dam, 2 miles south of Dutch John, 4 m

13 miles southeast of Linwood.

DRAINAGE AREA. 15,100 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: October 1956 to September 1962.

Water temperatures: October 1956 to September 1959.

Sediment records: October 1956 to September 1959. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,290 micromhos Feb. 15; minimum daily, 369 micr

Percent sodium: Maximum, 53 Mar. 29-31; minimum, 16 May 8.

Sodium-adsorption-ratio: Maximum, 3.72 Mar. 29-31; minimum, 0.60 May 8. 

EXTREMES, 1956-58, 1959-62. Specific conductance: Maximum daily, 1,340 micromhos Aug. 30, 1961; minimum 

Percent sodium (1959-62): Maximum, 53 Mar. 29-30, 1962; minimum, 16 May 8, 1962.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Salt Lake City, Utah.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1- 

Nov. 30, 1961. 

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

Jan. 1-3, 1962..

May 9-27........

Runoff 

(acrefeet)

117,846 

44,271 

5,355 

34,707 

2,777

18,240 

2,579 

12,893 

29,316 

20,469 

80,529

69,025 

223,327 

150,851 

83,542 

13,964 

254,116

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

5 

6

5 

5 

5

5 

7 

4 

6 

5 

5

5 

4 

4 

4 

5 

3

Magnesium 

(Mg)

70 

34 

58 

54 

40

.08 

.00 

.14 

.44 

.40 

.76

.36 

.28 

.10 

.24 

.04 

.72

Sodium 

(Na)

2.83 

3.05 

2.31 

2.22 

2.04

2.13 

4.57 

3.31 

6.31 

3.74 

3.39

6.09 

3.13 

1.35 

1.31 

.96 

1.04

Potassium 

(K)

Bicarbonate 

(HCOJ

3.25 

3.64 

3.34 

3.28 

3.29

3.20 

3.64 

2.84 

2.95 

3.23 

3.36

2.59 

3.13 

3.11 

3.15 

4.52 

2.82

CarDo nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04)

4.75 

5.21 

4.16 

3.98 

3.77

3.62 

6.91 

3.85 

7.77 

4.87 

4.87

6.97 

3.48 

1.96 

2.00 

1.25 

1.62

Chloride 

(Cl)

0.54 

.56 

.39 

.51 

.39

.39 

1.02 

.76 

2.03 

1.04 

.90

1.89 

.79 

.39 

.39 

.23 

.34

Fluoride 

(F)

Nitrate

(Ncg

B
May 28-31.... 

June 1-15.... 

June 16-30... 

July 1-31.... 

Aug. 1-31.... 

Sept. 1-30...

Total or 

weighted 

average

42,906

173,068

282,823

297,354

109,263

43,974

2,113,000

4.62

4.34

3.44

3.64

4.16

4.64

4.30

1.78

1.39

.91

1.31

1.78

2.96

1.98

3.31

3.26

2.74

2.85

2.75

2.66

3.00

.00

.00

.00

.00

.00

.00

0.00

2.54

2.10

1.37

1.83

2.85

4.41

2.78

.56

.39

.24

.28

.34

.51

0.51
GREEN RIVER BASIN Continued

9-3150. GREEN RIVER AT GREEN RIVER, UTAH

LOCATION. At bridge on U. S. Highways 50 and 6 in town of Green River, Emery County, 1 mile upstream 

DRAINAGE AREA. 40,600 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: August 1928 to September 1962.

Water temperatures: May 1949 to September 1959.

Sediment records: May 1930 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,010 mioromhos Sept. 22; minimum daily, 34

Percent sodium: Maximum, 44 Feb. 22-28; minimum, 24 May 1-31.

Sodium-adsorption-ratio: Maximum, 2.79 Sept. 22; minimum, 0.84 May 1-31. 

EXTREMES, 1941-62. Specific conductance: Maximum daily, 2,420 micromhos Sept. 29, 1943; minimum dai

Percent sodium: Maximum, 48 Sept. 19, 1960; minimum, 19 Aug. 7, 1957.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculat

available in district office at Salt Lake City, Utah.

Chemical analyses, water year October 1961 to Sept

Date 

of 

collection

Oct. 1-11, 1961.

Jan. 1-13, 1962. 

Jan. 14-Feb. 12.

Apr. 13-21......

Apr. 22-30......

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

Sept. 1-21.... ..

Sept. 22........

Sept. 23-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

94 , 778 

26 , 717 

112,756 

160,661 

65,359 

60,298

53,556 

118,413 

279,372 

66,173 

400,961 

358,215

275 , 980 

458,777 

1,349,653 

4 77 ,.5 21 

596,529 

407,901

190,096 

176 , 531 

62,688 

5,851 

29,482

5,828,300

Silica 

(Si02) 

PPm

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

5.28 

7.12 

5.52 

6.24 

6.32 

7.60

6.12 

6.52 

4.92 

5.72 

6.56 

5.28

4.72 

3.42 

3.38 

3.66 

3.00 

3.20

4.18 

4.72 

5.40 

17.00 

8.00

4 31

Sodium 

(Na)

3.26 

4.70 

3.31 

3.52 

3.70 

4.13

3.57 

3.26 

3.05 

4.57 

4.44 

3.52

2.57 

1.26 

1.09 

1.39 

1.04 

1.13

2.09 

2.57 

3.70 

8.13 

5.31

2.13

Potassium 

(K)

Bicarbonate

(Hccg

3.64 

3.38 

3.21 

3.49 

3.67 

4.29

3.57 

4.06 

3.00 

3.08 

3.59 

3.25

3.16 

2.72 

2.61 

2.82 

2.38 

2.41

2.95 

3.15 

3.31 

5.87 

3.44

2.92

Carxinate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

4.12 

7.06 

4.77 

5.33 

5.41 

6.23

5.29 

4.71 

4.37 

6.06 

6.29 

4.71

3.54 

1.69 

1.58 

1.85 

1.39 

1.60

2.71 

3.35 

4.66 

17.97 

8.39

2.98

Chloride 

(Cl)

0.79 

1.38 

.85 

.96 

.93 

1.21

.82 

.99 

.59 

1.16 

1.13 

.85

.59 

.28 

.28 

.37 

.28 

.31

.59 

.79 

1.13 

1.30 

1.47

0.54

Fluoride 

(F)

N

tra

(N
SAN JUAN RIVER BASIN

9-3555. SAN JUAN RIVER NEAR ARCHULETA, N. ME

LOCATION. At gaging station, 0.5 mile upstream from Gobernador Canyon, 1 mile north of Archuleta, San 

DRAINAGE AREA. 3,260 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: December 1954 to September 1962.

Water temperatures: December 1954 to September 1962.

Sediment records: December 1954 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 511 micromhos Feb. 16; minimum daily, 118 mic

Percent sodium: Maximum, 41 June 28; minimum, 14 Apr. 17-20.

Sodium-adsorption-ratio: Maximum, 1.53 Mar. 20; minimum, 30 Apr. 17-20. 

EXTREMES, 1954-62. Specific conductance: Maximum daily, 685 micromhos Jan..5, 1960; minimum daily, 10

Percent sodium: Maximum, 45 Feb. 13-17, 1957; minimum, 13 Apr. 17-23, 1958.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). 

available in district office at Albuquerque, N. Mex. Impounding started in reservoir above Navajo D

Chemical analyses, water year October 1961 to Septe

Date 

of 

collection

Oct. 1-8, 1961..

Oct. 14-30......

Oct. 31-Nov. 1..

Jan. 1-14, 

16-31, 1962...

Feb. 17-28. .....

Runoff 

(acrefeet)

9,679 

6,843 

6,551 

27,009 

3,483 

4,225

28,003 

7,894 

1,726 

8,505

14,936

456 

22,298 

4,661 

14 , 590 

18,165

Silica 

(S10a) 

ppm

15.0 

21.0

Equivalents per million

Calcium 

(Ca)

1.70 

2.79 

1.60 

1.50 

1.80 

2.30

1.90 

1.50 

2.15 

2.40

2.40

2.54 

2.10 

2.79 

2.40 

2.30

Magnesium 

(Mg)

0.28 

.61 

.40 

.22 

.32 

.70

.30 

.46 

.47 

.58

.52

.78 

.54 

.73 

.82 

.70

Sodium 

(Na)

0.74 

.91 

.70 

.70 

1.04 

1.09

.91 

.91 

1.09 

1.31

1.35

1.78 

1.44 

1.70 

1.35 

1.44

Potassium 

(K)

0.07 

.08

Bicarbonate 

(HCOa)

1.79 

2.59 

1.67 

1.51 

1.80 

2.05

1.77 

1.56 

2.15 

2.29

2.29

2.43 

2.03 

2.41 

2.05 

2.13

Car30 nate 

(C03)

Sulfate 

(S0 4 )

1.21 

1.79

Chloride 

(Cl)

0.19 

.23

Fluoride

(F)

0.01 

.02

Nitrate

(N03)

0.02 

.02
SAN JUAN RIVER BASIN Continued

9-3555. SAN JUAN RIVER NEAR ARCHULETA, N. HEX. Contin

Chemical analyses, water year October 1961 to September 196

Date 

Of 

collection

Mar. 20, 1962...

May 5-16 ........

May 29-31 .......

July 27-Aug. 3..

Total or 

weighted 

average

Runoff 

(acrefeet)

2,321 

23,457 

7,458 

25,254 

60,615

43,652 

112,106 

26 , 721 

118,746 

42,938

24,873 

14,698 

9,362 

18,089 

86,281

9,699 

40,019 

313 

916 

10,909

1,293 

19,547 

10,695 

25,547 

18,803

933,300

Silica 

(Si02) 

ppm

~

16.0

13.0

-

Equivalents per million

Calcium 

(Ca)

2.50 

2.50 

2.30 

2.35 

1.80

1.20 

.95 

1.05 

.80 

1.05

.90 

1.10 

1.15 

.95 

.75

1.00 

.90 

1.10 

1.00 

1.00

1.10 

1.15 

1.35 

1.65 

1.65

1.33

Magnesium 

(Mg)

0.90 

.80 

.80 

.82 

.68

.52 

.35 

.31 

.22 

.33

.26 

.38 

.31 

.25 

.21

.32 

.20 

.36 

.28 

.32

.30 

.29 

.41 

.47 

.51

0.40

Sodium 

(Na)

2.00 

1.26 

.83 

.70 

.48

.28 

.27 

.40 

.27 

.35

.31 

.42 

.40 

.30 

.26

.33 

.30 

1.00 

.52 

.44

.83 

.52 

.70 

.87 

.91

6.55

Potassium 

(K)

~

0.04 

.04

E

.07

-

Bicarbonate

(Hccg

2.66 

2.25 

2.03 

2.20 

1.90

1.51 

1.11 

1.23 

.98 

1.28

1.08 

1.34 

1.34 

1.11 

.92

1.21 

1.05 

1.61 

1.08 

1.21

1.64 

1.36 

1.67 

1.97 

2.03

1.44

CarX)nate

(ccg

Sulfate 

(S04 )

-

0.33

.94

~

Chloride 

(CD

0.03 

.10

-

Fluoride 

(F)

~

0.01 

.02

-

Nitrate 

(NO,,)

0.01 

.01

--
SAN JUAN RIVER BASIN Continued 

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH

LOCATION. At bridge on State Highway 47, 1,800 feet downstream from gaging station 20 miles southwe

mouth.

DRAINAGE AREA. 23,000 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: February to June 1927, October 1929 to September 1962.

Water temperatures: May 1944 to September 1961.

Sediment records: August to September 1928, July 1929 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,130 mlcromhos Sept. 8; minimum daily, 26

Percent sodium: Maximum, 61 Sept. 26-30; minimum, 22 Apr. 18-30.

Sodium-adsorption-ratio: Maximum, 5.03 Sept. 26-30; minimum, 0.43 June 5-18. 

EXTREMES, 1929-62. Specific conductance (1941-62): Maximum daily, 2,790 micromhos Sept. 19, 1959; 

Percent sodium: Maximum, 61 Sept. 26-30, 1962; minimum, 11 May 21, 23-27, 29-31, July 1-10, 1944.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calcula

available in district office at Salt Lake City, Utah.

Chemical analyses, water year October 1981 to Sept

Date 

of 

collection

Oct. 1-10, 1961.

Oct. 12-Nov. 2.. 

Nov . 3-Dec . 10 ..

Jan. 1-31, 1962.

Mar. 1-21.......

June 5-18. ......

Runoff 

(acrefeet)

26 , 593 

7,240 

72,873 

81,477 

25,283 

35,724

86,210 

7,379 

36,196 

36 , 853 

36,557 

72,714

205,456 

247,347 

98,809 

28,007 

165,834

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

5 

8 

5 

7 

10 

9

6 

8 

8 

6 

4 

4

2 

2 

3 

3 

2

Magnesium 

(Mg)

72 

92 

60 

32 

28 

12

24 

72 

40 

68 

90 

14

68 

52 

26 

70 

44

Sodium

(Na)

2.83 

3.87 

2.83 

3.39 

5.39 

4.92

4.70 

4.52 

4.09 

2.91 

1.78 

1.26

.74 

.87 

1.28 

1.39 

.48

Potassium 

(K)

Bicarbonate 

(HCO,)

2.90 

3.10 

2.56 

2.82 

4.08 

3.58

2.93 

3.20 

3.16 

2.85 

2.54 

2.54

1.97 

1.64 

1.75 

2.08 

1.49

Carbonate 

(CO,)

0.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

5.02 

8.89 

5.29 

7.12 

10.35 

9.39

7.29 

9.14 

8.37 

6.08 

3.77 

2.80

1.31 

1.56 

2.50 

2.71 

1.50

Chloride 

(Cl)

0.62 

.79 

.56 

.79 

1.24 

1.10

.71 

.90 

.96 

.68 

.37 

.28

.16 

.17 

.25 

.28 

.18

Fluoride

(F)

t

(N
SAN JUAN RIVER BASIN Continued

9-3795. SAN JUAN RIVER NEAR BLUFF, UTAH Continued 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

June 19-30, 1962 

July 1-13.......

Aug. 21-31......

Sept. 1-20......

Total or 

weighted 

average

Runoff 

(acrefeet)

102,871 

50,410 

37,059 

13,833 

6,319

3,295 

6,545 

585 

3,039 

16,215

1,511,000

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

2 

3 

5 

6

7

9 

11

7 

10 

5

4

Magnesium 

(Mg)

78 

94 

32 

00 

32

32 

60 

76 

90 

00

29

Sodium 

(Na)

0.87 

1.83 

2.87 

3.70 

5.05

6.00 

9.31 

5.52 

8.18 

7.96

1.96

Potassium 

(K)

Bicarbonate 

(HCOj)

1.54 

1.85 

2.26 

2.43 

2.43

2.72 

2.72 

3.47 

3.15 

4.21

2.18

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

1.87 

3.50 

5.27 

6.45 

8.93

11.22 

16.39 

8.81 

14.49 

7.89

3.69

Chloride 

(Cl)

0.24 

.42 

.65 

.82 

.99

1.38 

1.81 

1.02 

1.44 

.85

0.41

Fluoride

(F)

Nitrate

(N03)
VIRGIN RIVER BASIN 

9-4150. VIRGIN RIVER AT LITTLEFIELD, AHIZ.

LOCATION. At gaging station, 0.4 mile downstream from Beaver Dam Wash, 0.4 mile upstream from Littlefiel

of Lake Mead at elevation 1,221 feet above mean sea level. 

DRAINAGE AREA. 5,090 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: July 1949 to September 1962.

Water temperatures: October 1947 to September 1962.

Sediment records: October 1947 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 4,010 micromhos Aug. 3; minimum daily, 990 micr

Percent sodium: Maximum, 38 Nov. 1-24; minimum, 21 Sept. 29-30.

Sodium-adsorption-ratio: Maximum, 4.10 Nov. 1-24; minimum, 1.25 Feb. 16-17. 

EXTREMES, 1949-62. Specific conductance: Maximum daily, 4,090 micromhos Oct. 5, 1955; minimum daily, 73

Percent sodium: Maximum, 38 Nov. 1-24, 1961; minimum, 8 May 12, 1958. 

REMARKS. Records of specific conductance of daily samples available in district office at Salt La*;e City

Chemical analyses, water year October 1961 to September 

Date 

of 

collection £

Oct. 1-31, 1961. 

Nov. 1-24.......

Jan. 1-31, 1962.

Feb. 18.........

Mar. 1-27.......

Mar. 28-31......

May 11-19.......

May 20-31.......

July 1-31.... ...

Runoff 

(acrefeet)

5,515 

5,284 

2,261 

12,728 

10,207

2,277 

18,518 

3,166 

781 

5,159

13,388 

3,142 

6,141 

18,101 

8,586

5,078 

2,106 

1,464 

3,481 

3,849

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

25 

23 

19 

19 

19

18 

12 

8 

12

15

16 

12 

13 

8 

10

14 

19 

26 

24 

24

Magnesium 

(Mg)

20 

20 

20 

60 

90

80 

60 

70 

70 

70

.80 

.20 

.40 

.84 

.20

.20 

.60 

.00 

.40 

.40

Sodium 

(Na)

13.35 

13.96 

11.27 

11.31 

11.66

10.92 

5.05 

2.61 

5.39 

8.53

9.40 

6.13 

5.44 

3.96 

5.13

6.92 

10.74 

12.14 

11.92 

12.01

Potassium 

(K)

Bicarbonate 

(HCOa)

5.03 

5.57 

5.18 

5.51 

5.61

5.43 

3.72 

2.98 

3.90 

5.15

5.06 

4.23 

4.43 

3.79 

3.97

4.54 

4.93 

5.11 

3.13 

3.00

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

22.07 

20.01 

15.99 

15.93 

16.22

15.22 

10.04 

6.43 

9.83 

12.18

13.57 

9.16 

9.47 

5.87 

7.18

10.49 

16.51 

23.11 

23.32 

23.32

Chloride 

(Cl)

11.43 

11.57 

9.31 

9.45 

9.73

9.08 

3.89 

1.92 

4.37 

6.91

7.56 

4.94 

4.94 

3.13 

4.18

6.07 

8.89 

10.01 

9.87 

10.16

Fluoride 

(F)

Nitrate 

(N03)
VIRGIN RIVER BASIN Continued

9-4150. VIRGIN RIVER AT LITTLEFIELD, ARIZ. Continued 

Chemical analyses, water year October 1961 to September 1962 C

Date 

of 

collection

Aug. 3.. ........

Sept. 1-28......

Sept. 29-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

230 

129 

2,982 

5,609 

1,650

141,900

Silica 

(SiOa) 

ppm

Equivalents per million

Calcium 

(Ca)

25 

37 

25 

26 

23

16

Magnesium 

(Mg)

00 

60 

20 

40 

20

55

Sodium 

(Na)

12.01 

13.79 

12.53 

11.88 

6.22

8.37

Potassium 

(K)

Bicarbonate 

(HCCg

2.88 

5.93 

3.44 

4.57 

4.13

4.48

Carbonate 

(CO,)

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

23.94 

34.35 

23.94 

23.53 

21.03

13.54

Chloride 

(CD

10.16 

11.00 

10.44 

10.16 

4.37

6.90

Fluoride

(F)

Nitrate 

(N03)

B

p
GILA RIVER BASIN

9-4740. GILA RIVER AT KELVIN, ARIZ.

LOCATION. Just above mouth of Mineral Creek, 1,200 feet upstream from gaging station at Kelvin, Final Cou

19.5 miles upstream from Ashurst-Hayden Dam.

DRAINAGE AREA. 18,011 square miles at gaging station, of which 5,125 square miles is below Coolidge Dam. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962. 

Water temperatures: December 1950 to September 1962. 

Sediment records: January 1958 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 2,340 micromhos Sept. 24; minimum daily, 478 mic

Percent sodium: Maximum, 53 Sept. 1-14; minimum, 19 Jan. 25-26. 

Sodium-adsorption-ratio: Maximum, 3.76 Sept. 1-14; minimum, 0.72 Jan. 25-26. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 5,120 micromhos May 22, 1961; minimum daily, 407 

Percent sodium: Maximum, 67 July 15, 1955; minimum, 9 July 11-18, Sept. 10-30, 1956.

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). Re

available in district office at Albuquerque, N. Mex. No appreciable inflow from Mineral Creek between 

during periods of heavy local rains.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-10, 1961.

Nov. 23-Dec. 6..

Dec. 9-12.......

Dec. 13-14......

Jan. 1-3, 1962..

Jan. 17-19......

Runoff 

(acrefeet)

3,074 

1,273 

2,898 

926 

1,117 

2,126

3,971 

746 

4,094 

674 

14,678 

315

464 

135 

1,738 

508 

5,286 

982

Silica 

(SiO,) 

ppm

17.0

"

Equivalents per million

Calcium 

(Ca)

5.39 

5.49 

6.59 

7.39 

9.58 

6.79

5.89 

4.59 

4.04 

5.99 

3.89 

6.79

14.07 

8.98 

4.94 

5.59 

4.39 

5.59

Magnesium 

(Mg)

1.23 

1.48 

1.81 

1.81 

2.55 

1.81

1.65 

1.48 

.68 

1.40 

.71 

1.73

3.70 

2.06 

1.40 

1.73 

1.40 

1.65

Sodium 

(Na)

5.05 

5.83 

6.09 

6.35 

6.87 

7.05

5.87 

4.83 

1.78 

4.26 

1.13 

3.00

5.83 

4.44 

3.87 

4.96 

3.48 

4.22

Potassium 

(K)

.26

~

--

Bicarbonate 

(HCOa)

3.44 

2.82 

2.98 

2.33 

1.39 

2.54

2.51 

2.88 

3.41 

3.08 

3.02 

2.62

2.93 

3.15 

2.25 

2.79 

2.20 

2.29

Carxmate 

(CO,)

Sulfate 

(S04)

7.58

~

Chloride 

(Cl)

4.03

--

_

Fluoride 

(F)

0.06

_

--

Nitrate 

(NOJ

0.02

~

~

_

Bo

(

p

0
GILA RIVER BASIN Continued

9-4740. GILA RIVER AT KELVIN, ARIZ. Continued 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

Jan. 20, 1962...

Jan. 29-30......

Jan. 31-Feb. 1..

Total or 

weighted 

average

Runoff 

(acrefeet)

252 

169 

4,046 

6,228 

1,182 

540

359 

7,418 

3,439 

8,969 

36,647

3,650 

4,459 

2,317 

9,901 

23,550

28,979 

39,537 

38,676 

17,466 

899

503 

518 

1,006 

119 

109

285,900

Silica 

(Si02) 

ppm

~

29.0

33.0 

35.0

-

Equivalents per million

Calcium 

(Ca)

7.88 

11.73 

9.48 

3.79 

5.29 

8.48

11.23 

5.04 

3.54 

4.29 

3.24

3.44 

3.89 

5.29 

4.29 

3.69

3.79 

3.84 

3.94 

4.14 

6.19

12.08 

7.98 

4.24 

6.19 

9.78

4.18

Magnesium 

(Mg)

2.14 

3.04 

2.55 

.73 

1.32 

2.30

2.80 

1.56 

1.07 

1.48 

1.15

1.15 

1.48 

2.22 

1.40 

1.40

1.15 

1.48 

1.48 

1.56 

1.97

3.62 

2.22 

1.40 

1.23 

2.06

1.37

Sodium 

(Na)

4.87 

6.31 

5.18 

1.09 

2.61 

4.96

6.09 

3.83 

3.26 

3.18 

3.13

3.74 

4.57 

4.44 

4.31 

4.18

4.61 

5.22 

5.92 

6.35 

7.57

8.27 

4.39 

2.35 

3.65 

6.66

4.41

Potassium 

(K)

_

-

0.12

.14 

.15

--

Bicarbonate 

(HCOa)

2.07 

2.29 

1.77 

3.11 

2.39 

3.61

3.21 

2.31 

2.46 

2.15 

2.29

2.59 

2.69 

2.08 

2.39 

2.66

2.75 

3.25 

2.98 

3.21 

3.87

2.29 

4.85 

5.24 

3.02 

3.57

2.78

CarDonate 

(C03)

Sulfate 

(S04 )

2.71

2.87 

2.21

-

Chloride 

(CD

2.57

3.72 

4.96

"

Fluoride

(F)

0.04

.06 

.06

--

Nitrate 

(N03)

0.02

.01 

.02

--

B

p

0
GILA RIVER BASIN Continued 

9-5195. GILA RIVER BELOW GILLESPIE DAM, ARIZ.

LOCATION. About 1 mile downstream from gaging station on Gila Bend Canal, 200 feet downstream from Gill

Hassayampa River. Gila Bend Canal diverts from left bank and Enterprise Canal diverts from right ban

DRAINAGE AREA. 49,650 square miles. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962.

Water temperatures: December 1950 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 10,800 micromhos Nov. 20; minimum daily, 1,010 

Percent sodium: Maximum, 82 Sept. 29-30; minimum, 44 Jan. 24-27. 

Sodium-adsorption-ratio: Maximum, 18.37 Aug. 1-13; minimum, 3.03 Dec. 20. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 10,800 micromhos Nov. 20, 1961; minimum daily, 

Percent sodium: Maximum, 82 Sept. 29-30, 1962; minimum, 36 Jan. 23-24, 1952. 

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). 

available in district office at Albuquerque, N. Mex. Samples from canal are believed to be represent

spill and amounts diverted into Gila Bend and Enterprise Canals.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-16, 1961.

Jan. 1-23, 1962.

May 26-31. ......

Runoff

(acrefeet)

194 

25 

191 

500 

244 

102 

153

733 

598 

221 

454 

210 

912

935 

845 

555 

125

Silica 

(Si02) 

ppm

21.0

18.0 

33.0

Equivalents per million

Calcium 

(Ca)

20.76 

16.72 

19.16 

24.00 

22.90 

11.23 

4.29

24.65 

22.65 

4.19 

20.36 

20.71 

21.21

21.96 

19.71 

19.96 

15.72

Magnesium 

(Mg)

14.81 

11.27 

14.07 

13.82 

15.30 

7.16 

1.07

15.38 

15.79 

1.23 

13.66 

13.66 

14.56

14.81 

13.49 

14.07 

11.27

Sodium 

(Na)

73.95 

56.99 

68.30 

77.43 

77.87 

32.63 

4.96

77.87 

74.82 

4.44 

61.34 

61.77 

67.43

69.17 

66.12 

68.73 

56.55

Potassium 

(K)

0.33

.16 

.28

Bicarbonate 

(HCOj)

4.95 

4.67 

4.95 

5.36 

5.21 

3.93 

2.43

6.44 

5.33 

2.43 

5.44 

5.65 

5.06

5.34 

5.10 

4.57 

4.39

Carlo nate 

(C03)

Sulfate 

(S04 )

35.39

4.56 

32.27

Chloride 

(CD

68.27

3.02 

60.37

Fluoride 

(F)

0.16

.04 

.16

Nitrate

(N03)

0.76

.13 

.77
GILA RIVER BASIN Continued

9-5195. GILA RIVER BELOW GILLESPIE DAM, ARIZ. Contin

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

June 1-14, 1962

July 1-4, 6.. ...

July 5, 7-8... ..

July 9-12 .......

Aug. 14-27......

Sept. 14-28.....

Sept. 29-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

214 

95 

127 

62 

39 

39

21 

135 

124 

133 

33

114 

13 

57 

295 

36

8,530

Silica 

(Si02) 

ppm

~

27.0

--

Equivalents per million

Calcium 

(Ca)

19.71 

16.37 

17.96 

16.07 

12.97 

15.07

13.72 

16.22 

18.21 

14.07 

16.72

16.22 

4.99 

15.22 

18.71 

1.75

19.79

Magnesium

(Mg)

14.31 

12.83 

13.66 

11.93 

9.05 

12.50

10.28 

13.41 

14.97 

10.69 

13.49

11.02 

1.65 

11.19 

15.30 

.33

13.47

Sodium 

(Na)

70.47 

61.77 

69.17 

60.90 

44.37 

63.08

53.07 

67.43 

74.82 

53.07 

65.69

55.68 

7.22 

54.81 

66.99 

9.40

65.34

Potassium 

(K)

0.28 

.26

-

Bicarbonate 

(HCCg

4.43 

3.25 

3.98 

4.02 

3.84 

3.16

3.15 

2.64 

2.72 

3.11 

3.62

4.43 

2.62 

3.90 

5.05 

5.28

4.91

Carbonate

(CC-3)

Sulfate 

(S04 )

--

26.23

--

~

Chloride 

(Cl)

47.67

-

Fluoride 

(F)

~

0.18

--

Nitrate

(Ncg

--

0.47

"

-
GILA RIVER BASIN Continued

9-5020. SALT RIVER BELOW STEWART MOUNTAIN DAM, ARIZ

LOCATION. Just downstream from dam, 3.5 miles upstream from gaging station below Stewart Mountain Dam 

DRAINAGE AREA. 6,211 square miles.

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962.

Water temperatures: December 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,410 micromhos Aug. 14; minimum daily, 1,070 

Percent sodium: Maximum, 68 Sept. 1-30; minimum, 64 Oct. 1-31, Feb. 1 to Apr. 30.

Sodium-adsorption-ratio: Maximum, 5.69 Sept. 1-30; minimum, 4.87 Mar. 1-31. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 2,490 micromhos Aug. 20, 1951; minimum daily, 

Percent sodium: Maximum, 76 July 21-31, Aug. 11-26, 1951; minimum, 53 Mar. 21-31, Apr. 11-30, 1953. 

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). 

samples available in district office at Albuquerque, N. Mex. No inflow between sampling point and g

rains.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961. 

Nov. 1-Dec. 31.. 

Jan. 1-31, 1962.

Sept. 1-30... ...

Total or 

weighted 

average

Runoff 

(acrefeet)

16,048 

3,30'3 

2,226 

8,386 

9,346 

57,779

68,866 

78,545 

80,856 

118,425 

81 , 104

524,900

Silica 

(Si02) 

ppm

19.0

18.0 

23.0

21.0

--

Equivalents per million

Calcium 

(Ca)

2.64 

2.69 

2.59 

2.64 

2.69 

2.59

2.74 

2.74 

2.89 

2.69 

2.59

2.71

Magnesium 

(Mg)

0.90 

.90 

1.07 

.99 

.99 

1.07

1.07 

1.07 

.99 

1.40 

1.15

1.14

Sodium 

(Na)

6.66 

6.66 

6.74 

6.70 

6.61 

6.70

7.48 

7.83 

8.09 

7.83 

7.79

7.61

Potassium 

(K)

0.13

.13 

.13

.15

-

Bicarbonate 

(HCCg

2.69 

2,69 

2.85 

2.75 

2.72 

2.74

2.75 

2.75 

2.79 

2.82 

2.75

2.77

CarDonate 

(CO,)

Sulfate 

(S04 )

0.94

.96 

1.00

1.08

-

Chloride 

(Cl)

6.60

6.77 

6.60

8.27

-

Fluoride 

(F)

0.02

.02 

.03

.02

-

Nitrate 

(N03)

0.02

.01 

.01

.01

"
GILA RIVER BASIN Continued

9-5100. VERDE RIVER BELOW BARTLETT DAM, ARIZ.

LOCATION (revised). At gaging station, 0.2 mile downstream from Bartlett Dam, Maricopa County, 5.5 miles 

Creek. Prior to October 1, 1961, at site 2 miles downstream.

DRAINAGE AREA (revised). 6,185 square miles; 6,188 square miles at former site 2.2 miles downstream from 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962.

Water temperatures: December 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 770 micromhos Oct. 19-20; minimum daily, 261 mlc

Percent sodium: Maximum, 30 Sept. 1-30; minimum, 9 Apr. 30.

Sodium-adsorption-ratio: Maximum, 1.30 Oct. 1-18; minimum, 0.32 Apr. 30. 

EXTREMES, 1950-62. Specific conductance: Maximum daily, 958 micromhos Nov. 10, 1956; minimum daily, 234 

Percent sodium: Maximum, 32 Sept. 1-13, 1961; minimum, 9 Apr. 30, 1962.

REMARKS. Records of specific conductance of daily samples available in district office at Albuquerque, N. 

Jan. 27 to Feb. 1.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-18, 1961. 

Oct. 19-20......

Nov. 18-Dec. 3..

Jan. 2-26, 1962.

Feb. 21-28......

Apr. 13-19. .....

July 29-Aug. 2. .

Sept. 1-30... ...

Total or 

weighted 

average

Runoff 

(acrefeet)

8,569 

305 

3,012 

12,424 

10,463 

13,710

1,849 

4,062 

20,493 

25,016 

66,359 

36,369

12,038 

3,808 

309 

12,974 

14,104 

21 , 074

23,103 

16,399 

4,949 

9,894 

9,402

330,700

Silica 

(Si02) 

ppm

25.0 

20.0

18.0 

19.0

26.0

"

Equivalents per million

Calcium 

(Ca)

2.69 

3.34 

3.49 

2.89 

2.84 

2.69

1.55 

2.69 

2.40 

2.00 

1.75 

1.85

1.65 

1.60 

3.39 

1.50 

1.55 

1.60

2.10 

2.05 

2.10 

2.35 

2.00

2.03

Magnesium 

(Mg)

2.47 

3.04 

2.22 

2.22 

2.39 

2.47

2.63 

2.39 

1.97 

1.56 

1.32 

1.23

1.15 

.99 

1.81 

.90 

.82 

.99

.99 

1.73 

2.14 

2.39 

2.55

1.55

Sodium 

(Na)

2.09 

2.22 

1.83 

1.48 

1.48 

1.48

1.39 

1.44 

1.17 

.83 

.65 

.74

.65 

.57 

.52 

.48 

.48 

.52

.78 

1.17 

1.48 

1.83 

1.91

0.96

Potassium 

(K)

0.12 

.10

.06

.05 

.04

.10

Bicarbonate 

(HCO,,)

4.62 

5.87 

5.11 

4.65 

4.79 

4.64

3.47 

4.65 

4.06 

3.26 

2.79 

2.92

2.66 

2.44 

1.57 

2.26 

2.26 

2.51

2.95 

3.41 

3.70 

4.13 

4.00

Carbonate 

(C03)

0.00 

.00 

.00 

.00 

.00 

.13

.27 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

Sulfate 

(S04 )

1.77 

1.27

.58 

.37

1.71

Chloride 

(Cl)

0.85 

.68

.31

3.67 

.25

.76

Fluoride 

(F)

0.02 

.02

.01 

.02

.02

Nitrate 

(N03)

0.04 

.01

.02 

.01

.03
PART 10. THE GREAT BASIN

SEVIER LAKE BASIN 

10-1915. SEVIER RIVER BELOW PIUTE DAM, NEAR MARYSVALE, 

LOCATION. At outlet below Piute Dam, 0.8 mile upstream from gaging station and about 9 miles south of Ma

DRAINAGE AREA. 2,440 square miles, approximately, upstream from gaging station.

RECORDS AVAILABLE. Chemical analyses: March 1958 to September 1959, February 1961 to September 1962.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 3, 1961....

Jan. 5, 1962.... 

Jan. 15. ........

Feb. 5..........

Feb. 28.........

Mar. 12.........

Mar. 21.........

Apr. 11.........

Apr. .16. ......... 

Apr. 24.........

Runoff 

(acrefeet)

702 

3,570 

7,486 

305 

541

129 

357 

547 

714 

129

357 

516 

778 

333 

583

722 

284 

1,043 

1,517 

2.275

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOa)

Carbonate 

(CO,)

Sulfate 

(S0«)

Chloride 

(Cl)

0.37 

.39 

.39 

.34 

.37

.37 

.34 

.34. 

.34 

.34

.34 

.28 

.28 

.28 

.28

.28 

.28 

.28 

.28 

.28

Fluoride 

(F)

Nitrate 

(NO,)
SEVIER LAKE BASIN Continued

10-1915. SEVIER RIVER BELOW PIUTE DAM, NEAR MARYSVALE, UTAH 

Chemical analyses, water year October 1961 to September 1962 

Date 

of 

collection

May 10, 1962. ...

Aug. 28.........

Total or 

weighted 

average a

Runoff 

(acrefeet)

5,673 

8,509 

15,884 

2,787 

7,803 

11,704

5,843 

11,687 

22,399 

10,391 

1.8,385 

22,381

335

Silica 

(Si02) 

ppm

27

Equivalents per million

Calcium 

(Ca)

2.35

Magnesium 

(Mg)

1.56

Sodium 

(Na)

1.09

Potassium 

(K)

0.09

Bicarbonate

(Hccg

4.26

Carbonate 

(CO,)

Sulfate 

(S04 )

0.50

Chloride 

(CD

0.25 

.25 

.25 

.25 

.25 

.25

.28 

.28 

.28 

.39 

.39 

.39

0.31

Fluoride

(F)

Nitrate 

(N03)

0.02

B

a Includes estimated data for missing periods. Represents 100 percent of runoff for water year October 
SEVIER LAKE BASIN Continued

10-2240. SEVIER RIVER NEAR LTONDYL, UTAH

LOCATION. At bridge on county road, 1.5 miles upstream from gaging station and about 2 miles south of Ly

DRAINAGE AREA. 6,270 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1962.

Water temperatures: March 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 4,350 micromhos Mar. 1; minimum daily, 431 raicr

Percent sodium: Maximum, 57 Sept. 1-19; minimum, 23 Feb. 3-11.

Sodium-adsorption-ratio: Maximum, 7.21 Feb. 23-28; minimum, 0.82 Feb. 3-11. 

EXTREMES, 1951-62. Specific conductance: Maximum daily, 7,040 micromhos Jan. 21, 1955; minimum daily, 4

Percent sodium: Maximum, 61 Sept. 11-20, 1955; minimum, 23 Feb. 3-11, 1962.

REMARKS. Dashes omitted in potassium (K) column indicate sodium (Na) plus potassium (K) are calculated. 

available in district office at Salt Lake City, Utah. Discharges are adjusted to compensate for inflo

the sampling site and the gaging station.

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-31, 1961. 

Nov . 1-Dec . 31 . . 

Jan. 1-31, 1962.

Feb. 3-11.......

Sept. 26-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

1,814 

4,392 

2,330 

150 

9,997

6,633 

251 

980 

290 

604

1,364 

34 , 187 

15,352 

24,472 

4,929

6,982 

1,016 

3,343 

280 

153

119,500

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

9 

9 

10 

9 

3

19 

22 

20 

16 

15

12 

10 

10 

10 

10

15 

10 

11 

9 

13

10

Magnesium 

(Mg)

44 

36 

20 

80 

76

40 

00 

80 

30 

80

56 

56 

64 

20 

16

80 

08 

50 

04 

70

83

Sodium

(Na)

8.13 

7.00 

6.96 

6.96 

1.13

17.40 

23.93 

20.53 

15.36 

14.66

10.92 

12.57 

12.57 

12.62 

12.88

20.01 

12.66 

15.18 

8.66 

16.36

12.11

Potassium 

(K)

Bicarbonate 

(HCCg

4.49 

4.69 

5.54 

5.24 

3.41

4.64 

5.36 

4.90 

5.06 

4.98

4.67 

5.11 

5.00 

5.16 

5.23

5.03 

5.05 

4.90 

4.43 

4.84

4.91

Car30 nate 

(C03)

0.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

.00 

.00 

.00 

.00 

.00

0.00

Sulfate 

(S04 )

5.25 

4.54 

4.50 

4.50 

.81

14.39 

16.45 

15.76 

11.14 

10.66

7.95 

7.52 

7.54 

7.22 

7.20

12.58 

7.31 

8.93 

5.23 

10.26

7.51

Chloride 

(Cl)

7.84 

7.11 

7.11 

7.00 

.65

17.77 

24.12 

20.65 

15.46 

14.81

10.86 

10.49 

10.66 

10.44 

10.58

18.20 

10.38 

12.84 

8.04 

14.95

10.52

Fluoride

(F)

Nitrate 

(N03)

B
HUMBOLDT RIVER BASIN 

10-3225. HUMBOLDT RIVER AT PALISADE, NEV.

LOCATION. At gaging station, 0.3 mile downstream from Southern Pacific Railroad bridge, 0.5 mile downstre

upstream from Pine Creek.

DRAINAGE AREA. 5,010 square miles, approximately. 

.RECORDS AVAILABLE. Chemical analyses: May to September 1962.

Water temperatures: May to September 1962. 

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance of 

Sacramento, Calif.

Chemical analyses, May to September 1962

Date 

of 

collection

May 22-31, 1962.

July 1-10... ....

July 11-20 ......

Sept. 1-10......

Sept. 21-30.....

Runoff 

(acrefeet)

3,396 

3,322 

3,233 

4,264 

3,324 

1,585 

793 

381

158 

87 

69 

54 

50 

52

Silica 

(Si02) 

ppm

34.0 

33.0 

31.0 

32.0 

32.0 

30.0 

30.0 

30.0

37.0 

37.0 

38.0 

38.0 

37.0 

38.0

Equivalents per million

Calcium 

(Ca)

2.20 

2.10 

2.00 

2.30 

2.15 

2.30 

2.30 

2.50

2.64 

2.74 

2.74 

2.64 

2.54 

2.50

Magnesium 

(Mg)

0.60 

.74 

.70 

.76 

.69 

.74 

.70 

.82

.99 

1.15 

1.15 

1.23 

1.15 

1.07

Sodium 

(Na)

2.00 

1.65 

1.39 

2.00 

1.52 

1.31 

1.48 

1.74

2.18 

2.44 

2.44 

2.26 

2.18 

2.18

Potassium 

(K)

0.20 

.16 

.15 

.20 

.16 

.14 

.15 

.17

.22 

.24 

.25 

.28 

.26 

.24

Bicarbonate

(Hccg

3.84 

3.61 

3.36 

4.08 

3.74 

3.87 

3.90 

4.29

4.67 

4.90 

4.82 

a4.70 

b4.44 

a4.47

Carbonate 

(C03)

Sulfate 

(S04 )

0.73 

.52 

.44 

.60 

.31 

.35 

.40 

.54

.71 

.90 

.92 

1.00 

1.02 

.96

Chloride 

(CD

0.39 

.34 

.34 

.34 

.25 

.18 

.25 

.34

.42 

.59 

.59 

.68 

.65 

.62

Fluoride 

(F)

0.02 

.02 

.03 

.03 

.03 

.03 

.02 

.03

.02 

.02 

.03 

.04 

.03 

.03

Nitrate 

(N03)

0,01 

.02 

.01 

.01 

.01 

.02 

.03 

.02

.01 

,01 

.01 

.02 

.02 

.01

B

p

0

a Includes 0.33 equivalent per million of carbonate (COa). 

b Includes 0.17 equivalent per million of carbonate (CDs).
HUMBQLDT RIVER BASIN Continued 

10-3350. HUMBOLDT RIVER NEAR RYE PATCH, NEV.

LOCATION. At gaging station, 1,000 feet downstream from Rye Patch Dam, and 1.5 miles northwest of Rye Pa

DRAINAGE AREA. 16,100 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: December 1951 to September 1958, October 1959 to September 1961, 

Water temperatures: December 1951 to September 1958, October 1959 to September 1961, May to September 

EXTREMES, 1951-58, 1959-61. Specific conductance: Maximum daily, 4,010 micromhos Sept. 2, 1954; minimum 

Percent sodium: Maximum, 71 Sept. 1-5, 1954; minimum, 21 June 24, 1956.

REMARKS. Daily samples for chemical analysis composited by discharge. Records of specific conductance o

Sacramento, Calif. Flow completely regulated by Rye Patch Reservoir.

Chemical analyses, May to September 1962

Date 

of 

collection

May 22-31, 1962.

June 11-30......

July 1-10.......

July 21-31 ......

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

Aug. 11-13......

Aug. 14-20......

Sept. 1-10......

Sept. 21-30.....

Runoff 

(acrefeet)

789 

734 

688 

1,075 

1,095 

811 

377

32 

300 

468 

343 

224 

208

Silica 

(Si02) 

ppm

32.0 

35.0 

36.0 

38.0 

39.0 

38.0 

41.0

47.0 

43.0 

39.0 

43.0 

41.0 

40.0

Equivalents per million

Calcium 

(Ca)

2.30 

2.20 

2.25 

2.40 

2.45 

2.59 

2.50

2.59 

2.59 

2.59 

2.69 

2.59 

2.64

Magnesium 

(Mg)

0.74 

.82 

.90 

1.07 

1.07 

1.07 

1.23

1.40 

1.23 

1.23 

1.23 

1.32 

1.23

Sodium 

(Na)

4.18 

3.65 

3.52 

3.83 

3.92 

4.35 

4.52

4.87 

4.52 

4.44 

4.39 

4.35 

4.44

Potassium 

(K)

0.33 

.26 

.26 

.28 

.33 

.33 

.36

.33 

.36 

.38 

.38 

.38 

.38

Bicarbonate

(Hccg

3.88 

3.90 

4.05 

4.59 

4.84 

5.20 

5.38

5.34 

5.54 

5.38 

5.11 

5.23 

5.47

Carbonate 

(CDs)

0.00 

.00 

.00 

.00 

.00 

.00

.00

.00 

.00 

.27 

.67 

.57 

.33

Sulfate 

(S0«)

1.46 

1.31 

1.27 

1.37 

1.46 

1.46 

1.31

1.42 

1.31 

1.33 

1.37 

1.42 

1.29

Chloride

(CD

1.97 

1.47 

1.30 

1.38 

1.44 

1.50 

1.64

2.31 

1.69 

1.47 

1.47 

1.52 

1.52

Fluoride

(F)

0.04 

.04 

.04 

.03 

.03 

.03 

.03

.03 

.03 

.03 

.05 

.05 

.04

Nitrate 

(N03)

0.03 

.01 

.01 

.02 

.02 

.02 

.02

.02 

.02 

.01 

.04 

.02 

.03

B

0
PART 11. PACIFIC SLOPE BASINS IN CALIFORNIA

SAN JOAQUIN RIVER BASIN 

11-3035. SAN JOAQUIN RIVER NEAR VERNALIS, CALIF.

LOCATION. At gaging station at Durham Ferry highway bridge, 3 miles downstream from Stanislaus River, and 

DRAINAGE AREA. 14,010 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1962.

Water temperatures: March 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 1,490 micromhos Oct. 3, 4; minimum daily, 132 mi

Percent sodium: Maximum, 56 Jan. 11-20; minimum, 43 Feb. 13-21, May 11-13.

Sodium-adsorption-ratio: 4.34 Feb. 1-9; minimum, 1.01 May 11-13. 

EXTREMES, 1951-58, 1959-62. Specific conductance: Maximum daily, 2,350 micromhos Aug. 11, 1961; minimum 

Percent sodium: Maximum, 56 Jan. 21-31, 1954; Jan. 11-20, 1961, Jan. 11-20, 1962; minimum, 27 Dec. 24-2

REMARKS. Records of specific conductance of daily samples available in district office at Sacramento, Cal

Chemical analyses, water year October 1961 to September 

Date 

of 

collection

Oct. 1-10, 1961.

Jan. 1-10, 1962.

Feb. 10-12......

Runoff 

(acrefeet)

6,684 

9,098 

9,402 

11,464 

10,731 

13,091 

15,630

14,142 

13,964 

12,397 

16,007 

21,033 

13,870 

13.168

Silica 

(Si02) 

ppm

35.0 

37.0 

35.0 

36.0 

32.0 

33.0 

29.0

31.0 

33.0 

34.0 

26.0 

28.0 

26.0 

20.0

Equivalents per million

Calcium 

(Ca)

3.64 

3.44 

3.19 

2.59 

2.54 

2.64 

2.40

2.79 

2.69 

3.14 

2.84 

2.99 

3.39 

1.90

Magnesium 

(Mg)

3.04 

2.80 

2.80 

2.71 

2.55 

2.47 

2.30

2.63 

2.96 

2.55 

2.47 

2.55 

2.55 

1.56

Sodium 

(Na)

7.74 

6.96 

6.57 

5.31 

5.31 

5.74 

5.31

6.05 

6.35 

6.61 

6.79 

6.83 

7.48 

4.00

Potassium 

(K)

0.07 

.07 

.09 

.09 

.10 

.13 

.14

.12 

.11 

.11 

.12 

.14 

.14 

.18

Bicarbonate 

(HCC-a)

3.70 

3.61 

3.44 

2.92 

2.85 

3.08 

3.05

3.21 

3.18 

3.15 

3.41 

3.25 

3.26 

2.21

Carbonate 

(C03)

Sulfate 

(S0«)

2.50 

2.31 

2.25 

1.85 

1.98 

2.00 

1.77

2.23 

2.39 

2.46 

2.77 

2.89 

3.52 

2.00

Chloride 

(Cl)

7.79 

6.88 

6.49 

5.44 

5.50 

5.47 

4.85

5.75 

6.04 

6.35 

5.75 

5.92 

6.86 

3.55

Fluoride

(F)

0.01 

.01 

.01 

.01 

.01 

.01 

.02

.01 

.01 

.02 

.02 

.02 

.01 

.02

Nitrate 

(N03)

0.04 

.05 

.07 

.07 

.07 

.07 

.05

.08 

.08 

.10 

.09 

.08 

.06 

.07

B
Feb. 13-21, 1962

Apr. 7-14.......

Apr. 15-18... .. .

Apr. 19-20......

Sept. 21-30.....

Total or 

weighted 

average

159,537 

134,303

89,748

73,150

105,441

96 , 436

34,512

30,244

10 , 774

6,684

17,474

21 , 144

8,410

31,103

23 , 546

59,474

5,931

20,648

13,051

19,549

20,053

13,071

15,600

19,021

18,526

21,560

1,487,000

17.0 

16.0

19.0

17.0

18.0

18.0

19.0

21.0

19.0

20.0

18.0

21.0

26.0

23.0

26.0

28.0

28.0

30.0

31.0

30.0

32.0

32.0

20.46

.80 

1.00

1.15

.75

1.00

1.40

1.70

2.25

1.50

1.35

1.00

1.20

.65

1.00

1.65

1.90

.55

.85

1.35

2.10

2.50

2.74

2.59

2.59

2.25

2.45

2.30

1.39

.48 

.56

.90

.64

.79

1.07

1.15

1.40

1.73

1.23

.76

.79

.58

.64

.19

.42

.90

1.48

.35

.49

.99

1.56

1.89

1.97

1.89

1.97

1.97

1.73

1.73

1.73

1.04

1.04 

1.57

2.22

1.22

1.65

2.18

2.78

3.74

4.22

2.78

2.00

2.09

1.48

2.18

.65

1.48

2,70

3.87

.78

1.39

2.48

3.92

4.57

5.00

5.39

5.18

5.22

4.26

4.70

4.31

2.56

.10 

.07

.06

.05

.05

.06

.07

.09

.10

.08

.06

.06

.05

.06

.04

.06

.07

.09

.04

.04

.07

.09

.11

.12

.12

.13

.13

.11

.11

.11

0.08

1.11 

1.25

1.49

1.07

1.21

1.36

1.93

1.90

2.33

1.75

1.39

1.72

.82

1.31

.67

1.07

1.84

2.28

.74

1.07

1.64

2.38

2.84

2.66

2.95

2.95

3.05

2.85

3.00

2.93

1.66

.52

.77

1.19

.65

.92

1.23

1.42

1.64

1.83

1.02

.60

.67

.56

.85

.25

.54

.96

1.29

.25

.46

.79

1.27

1.50

1.50

1.44

1.31

1.42

1.27

1.31

1.31

1.04

.82 

1.24

1.64

.85

1.27

1.78

2.23

3.07

3.95

2.51

1.78

1.97

1.38

1.75

.59

1.24

2.37

3.50

.73

1.13

2.26

3.72

4.63

5.36

5.28

5.25

5.22

4.29

4.51

4.26

2.28

.01 

.01

.01

.02

.01

.01

.01

.01

.01

.00

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.02

.01

0.01

.04 

.04

.04

.04

.03

.02

.03

.06

.08

.07

.05

.04

.05

.04

.04

.05

.05

.05

.02

.02

.03

.06

.06

.06

.09

.11

.09

.04

.05

.06

0.040

a. Calculated.
SACRAMENTO RIVER BASIN

11-4250. FEATHER RIVER AT NICOLAUS, CALIF.

LOCATION. At gaging station at highway bridge at Nicolaus, Sutter County, and 2.9 miles downstream from Be

DRAINAGE AREA. 5,920 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1951 to September'1958, November 1959 to September 1962.

Water temperatures: March 1951 to September 1958, November 1959 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 170 micromhos Nov. 12; minimum daily, 64 micromho

Percent sodium: Maximum, 29 Mar. 1-10; minimum, 16 Nov. 23-30.

Sodium-adsorption-ratio: Maximum, 0.49 Mar. 1-10; minimum, 0.26 Feb. 9-18.

EXTREMES, 1951-58, 1959-62. Specific conductance (1951-55, 1956-58, 1959-62): Maximum daily, 291 micromho

May 28, 1952.

Percent sodium (1951-54, 1957-58, 1959-62): Maximum, 29 Mar. 1-10, 1962; minimum, 8 June 21-30, 1951, Ja

REMARKS. Values reported for sodium (Na) are determined by analysis and do not include potassium (K). Rec

available in district office at Sacramento, Calif.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-31, 1961.

Jan. 1-19, 1962. 

Jan. 20-31......

Feb. 19-28......

Runoff

(acrefeet)

39,229 

42,895 

29 , 228 

215,944 

45,362 

95,159

51 , 713 

918,942 

274,116 

263 , 041 

189,144 

222,109

307,636 

358,610 

261 , 223 

332,033 

224,116 

172.145

Silica 

(Si02) 

ppm

Equivalents per million

Calcium 

(Ca)

0.75 

.70 

.70 

.60 

.65 

.60

.60 

.40 

.47 

.50 

.48 

.50

.46 

.44 

.42 

.36 

.40 

.38

Magnesium 

(Mg)

0.61 

.58 

.46 

.44 

.43 

.40

.47 

.21 

.31 

.24 

.34 

.34

.26 

.16 

.18 

.20 

.22 

.23

Sodium 

(Na)

0.28 

.27 

.21 

.20 

.28 

.25

.31 

.14 

.19 

.30 

.23 

.21

.20 

.16 

.16 

.14 

.17 

.17

Potassium 

(K)

Bicarbonate

(Hccg

1.41 

1.31 

1.21 

.98 

1.11 

.89

1.03 

.51 

.67 

.70 

.77 

.85

.72 

.59 

.61 

.57 

.66 

.62

Caraonate 

(003)

Sulfate 

(S04 )

Chloride 

(Cl)

Fluoride 

(F)

Nitrate 

(NO,,)

Bo

(B

pp
June 16-30, 1962

Aug. 16-31......

Total or 

weighted 

average

107,647

34,036

27,788

26,626

4,353,000

.49

.65

.60

0.46

.22

.50

.49

.42

0.27

.20 

23

.24

.26

.29

0.19

.75 

1.00

1.15

1.20

1.28

1 23

0.70
SACRAMENTO RIVER BASIN Continued

11-4465. AMERICAN RIVER AT FAIR OAKS, CALIF.

LOCATION. At old highway bridge, 2.2 miles downstream from gaging station, 1,500 feet upstream from new 

2.6 miles downstream from Nimbus Dam, and 10 miles downstream from South Fork. 

DRAINAGE AREA. 1,889 square miles, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: January to December 1906, March 1951 to September 1958, November 

Water temperatures: March 1951 to September 1958, November 1959 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 91 micromhos Jan. 7; minimum daily, 42 micromho

Percent sodium: Maximum, 25 May 1-8; minimum, 16 Oct. 1 to Nov. 30.

Sodium-adsorption-ratio: Maximum, 0.31 Jan. 1 to Feb. 9; minimum, 0.21 Oct. 1 to Nov 30, May 9-31. 

EXTREMES, 1951-58, 1959-62. Specific conductance: Maximum daily, 112 micromhos Aug. 28, 1951; minimum d

Percent sodium (1951-54, 1957-58, 1959-62): Maximum, 34 Aug. 1, 1958; minimum, 8 Jan. 21-31, 1953.

REMARKS. Records of specific conductance of daily samples available in district office at Sacramento, Ca

station.

Chemical analyses, water year October 1961 to September 

Date

Of

collection

Oct. 1-31, 1961.

Jan. 1-31, 1962.

Sept. 1-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

36,770 

30,288 

30,436 

21,521 

7,533 

66,075

169 , 801 

424,449 

159,798 

182,588 

72,643

117,380 

124,185 

209,919 

217,051 

157,924

2,028,000

Silica 

(Si02) 

ppm

11.0

"

Equivalents per million

Calcium 

(Ca)

0.36 

.36 

.40 

.40 

.45 

.37

.36 

.48 

.55 

.44 

.34

.26 

.27 

.20 

.27 

.24

0.36

Magnesium 

(Mg)

0.24 

.28 

.20 

.22 

.21 

.23

.20 

.12 

.07 

.06 

.08

.18 

.05 

.12 

.07 

.10

0.12

Sodium 

(Na)

0.11 

.12 

.12 

.17 

.18 

.16

.14 

.13 

.14 

.14 

.14

.10 

.10 

.10 

.09 

.10

0.12

Potassium 

(K)

0.01

--

Bicarbonate 

(HCOa)

0.49 

.52 

.56 

.62 

.57 

.52

.49 

.46 

.56 

.46 

.39

.38 

.34 

.34 

.39 

.33

0.43

Carbonate 

(C03)

Sulfate 

(S04 )

0.01

-

Chloride 

(Cl)

0.08 

.06 

.03

-

Fluoride

(F)

0.01

~

Nitrate 

(N03)

B

p

0
PART 12. PACIFIC SLOPE BASINS IN WASHINGTON AND UPPER COLUMBIA 

COLUMBIA RIVER MAIN STEM 

12-3995. COLUMBIA RIVER AT NORTHPORT, WASH.

LOCATION. At bridge on State Highway 22 at Northport, Steven County, and 12 miles downstream from gaging 

DRAINAGE AREA. 59,700 square miles, approximately, upstream from gaging station.

RECORDS AVAILABLE. Chemical analyses: February 1910 to January 1911, November 1951 to September 1962.

Water temperatures: November 1951 to September 1962. 

EXTREMES, 1961-62. Spcific conductance: Maximum daily, 184 micromhos Jan. 25, 27; minimum daily, 129 mi

Percent sodium: Maximum, 6 Mar. 9 to Apr. 30; minimum, 4 June 23 to July 15.

Sodium-adsorption-ratio: Maximum, 0.11 Feb. 9 to Apr. 8; minimum, 0.08 May 29 to Sept. 30.

EXTREMES, 1958-62. Specific conductance: Maximum daily, 188 micromhos Mar. 2, 1959; minimum daily, 123 m

REMARKS. Samples were collected at international boundary, Wash., 2.2 miles downstream from gaging statio

June 1958. Records of specific conductance of daily samples available in district office at Portland, 

point and gaging station except during periods of heavy local runoff.

Chemical analyses, water year October 1961 to September 

Date

of 

collection

Oct. 1-28, 1961.

Oct. 29-Nov. 27.

Nov. 28-Dec. 8..

Dec. 9-

Jan. 8, 1962..

Jan. 9-Feb. 8...

Feb. 9-Mar. 8...

Mar. 9-Apr. 8. . .

Apr. 9-30.......

May l-2a. .......

May 29- June 22. .

June 23 -July 15.

July 16-Aug. 14.

Aug. 15-Sept. 8.

Sept. 9-30. .....

Total or

weighted

average

Runoff

(acrefeet)

3,182,281

3,131,702

908,073

2,295,947

2,501,316

2,589,699

2,741,732

4,076,073

8,413,884

12,293,553

10,790,003

9,138,644

4,693,884

2,526,982

69,284,000

Silica

(Si02) 

ppm

4.2

4.9

4.9

5.4

5.8

5.7

5.5

6.2

5.7

5.8

5.0

4.0

3.7

3.3

5.1'

Equivalents per million

Calcium 

(Ca)

1.10

1.15

1.20

1.25

1.30

1.25

1.25

1.15

1.10

1.00

1.00

1.00

.95

1.00

1.07

Magnesium 

(Mg)

0.34

.38

.40

.40

.39

.44

.43

.35

.29

.36

.30

.26

.32

.34

0.33

Sodium 

(Na)

0.08

.08

.09

.09

.10

.10

.10

.09

.08

.07

.06

.06

.07

.07

0.07

Potassium 

(K)

0.02

.02

.03

.03

.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

0.02

Bicarbonate 

(HCOs)

1.21

1.29

1.31

1.38

1.41

1.43

1.41

1.31

1.21

1.18

1.15

1.11

1.07

1.08

1.21

CarDonate

(ccg

Sulfate 

(S04 )

0.29

.29

.35

.37

.35

.35

.33

.29

.25

.27

.25

.23

.25

.29

0.27

Chloride 

(CD

0.02

.02

.02

.03

.02

.00

.04

.01

.01

.01

.01

.01

.01

.01

0.01

Fluoride 

(F)

0.01

.01

.02

.01

.01

.01

.02

.00

.00

.01

.01

.01

.01

.01

0.01

Nitrate

(Ncg

0.00

.01

.00

.01

.01

.01

.00

.01

.01

.01

.01

.01

.01

.01

0.01

Bo

(

p
YAKIMA RIVER BASIN

12-5105. YAKIMA RIVER AT KIONA, WASH.

LOCATION. At highway bridge downstream from gaging station at Kiona, Benton County, 3.5 miles downstream 

from mouth.

DRAINAGE AREA. 5,600 square miles, approximately. 

RECORDS AVAILABLE. Chemical analyses: December 1952 to September 1962.

Water temperatures: December 1952 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 409 micromhos Oct. 3, 10; minimum daily, 111 mic

Percent sodium: Maximum, 27 Oct. 1-21, Dec. 23-27, May 25-28, June 30 to July 10, Aug. 9 to Sept. 30; m

Sodium-adsorption-ratio: Maximum, 0.89 Oct. 1-21, Aug. 28 to Sept. 30; minimum, 0.42 Apr. 8, 9.

EXTREMES, 1952-62. Specific conductance: Maximum daily, 409 micromhos Oct. 3, 10, 1961; minimum daily, 

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-21, 1961. 

Oct. 22-Nov. 10. 

Nov. 11 -Dec. 10.

Dec. 28- 

Jan. 8, 1962..

Jan. 22-Feb. 3..

Feb. 24-Mar. 23. 

Mar. 24-Apr. 7..

Apr. 24-May 1... 

May 2-24 ........

Runoff 

(acrefeet)

83 , 931 

92,430 

127,220 

46,699 

28,998

92,112

85 , 091 

54,565 

87,798 

96 , 734 

85,825 

151,006

84,912 

39,293 

38,499 

96 , 000 

40,161 

114.323

SUica 

(Si02) 

ppm

32.0 

28.0 

27.0 

28.0 

28.0

22.0

19.0 

21.0 

22.0 

20.0 

23.0 

23.0

23.0 

19.0 

20.0 

21.0 

22.0 

23.0

Equivalents per million

Calcium 

(Ca)

1.70 

1.60 

1.45 

1.50 

1.20

.95

.70 

.85 

.95 

.80 

.90 

1.05

1.00 

.60 

.70 

.80 

1.05 

1.20

Magnesium 

(Mg)

1.07 

.90 

.90 

.99 

.75

.58

.39 

.55 

.55 

.47 

.54 

.67

.65 

.35 

.31 

.45 

.53 

.68

Sodium 

(Na)

1.04 

.91 

.87 

.91 

.74

.57

.34 

.48 

.52 

.43 

.52 

.61

.57 

.29 

.32 

.41 

.57 

.70

Potassium 

(K)

0.10 

.09 

.08 

.08 

.07

.05

.04 

.04 

.05 

.04 

.05 

.06

.06 

.04 

.04 

.05 

.06 

.07

Bicarbonate 

(HCOJ

3.08 

2.80 

2.62 

2.66 

2.11

1.67

1.18 

1.52 

1.61 

1.39 

1.59 

1.93

1.85 

1.07 

1.13 

1.38 

1.75 

2.07

Carbonate 

(C03)

Sulfate 

(S04 )

0.50 

.44 

.44 

.44 

.35

.27

.16 

.23 

.25 

.18 

.23 

.25

.25 

.11 

.15 

.17 

.27 

.33

Chlorids 

(ci)

0.21 

.21 

.21 

.21 

.17

.14

.08 

.13 

.14 

.11 

.13 

.17

.16 

.07 

.07 

.08 

.11 

.14

Fluoride

(F)

0.02 

.02 

.02 

.02 

.02

.01

.01 

.01 

.01 

.01 

.01 

.01

.01 

.01 

.01 

.01 

.01 

.02

Nitrate 

(N03)

0.05 

.04 

.04 

.06 

.06

.04

.04 

.03 

.04 

.03 

.03 

.02

.02 

.02 

.02 

.03 

.03 

.03

Bo

(B

pp
May 25-28 .... 

May 29- June 7. . .

June 30-July 10. 

July 11-23......

July 24 -Aug. 8. .

Aug. 28-Sept. 6. 

Sept. 7-30......

Total or 

weighted 

average

37,765 

82,651

34,647 

33,211

43,160

tlA At Q

32,608 

82,877

1,992,000

23.0 

22.0

25.0

27.0

26.0 

29.0

23.7

1.00 

1.00

Qe

1.55

1.65

1.75 

1.75

1.15

.61 

.52

AQ

.76 

.99

.90

.99 

.99

0.68

.61 

.52

.52

.87 

1.00

.91

1.04 

1.04

0.66

.06 

.06

.09

.10

.10 

.10

0.07

1.77 

1.70

1 44

2.52

2.79

2.98 

3.05

2.02

.29 

.25

OQ

OQ

.46

.48

.48 

.50

0.31

.11 

.10 

13

.18

.20

.23 

.23

0.15

.01 

.01

.02 

.02

.02

.02 

.02

0.01

.04 

.04

.04

.06

.05 

.05

0.04
PART 13. SNAKE RIVER BASIN

SNAKE ilI7ER MAIN STEM 

13-375. SNAKE RIVER NEAR HEISE, IDAHO

LOCATION. At Eagle Rock canal headgate, 1.2 miles upstream from Heise, Jefferson County, 1.6 miles downst

downstream from gaging station, 4.8 miles east of Ririe, and 21 miles upstream from Henrys Fork. 

DRAINAGE AREA. 5,752 square miles upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: January 1953 to September 1962.

Water temperatures: January 1953 to September 1962.

EXTREMES, 1961-62. Specific conductance: Maximum daily, 591 micromhos Dec. 12; minimum daily, 297 microm

Percent sodium: Maximum, 18 Feb. 17-26; minimum, 9 June 21 to July 27. 

Sodium-adsorption-ratio: Maximum, 0.65 Feb. 17-26; minimum, 0.24 July 5-27. 

EXTREMES, 1953-62. Specific conductance: Maximum daily, 791 micromhos Nov. 13, 1956; minimum daily, 240 

Percent sodium: Maximum, 19 Sept. 1-10, 1955; minimum, 7 June 11-20, 1953, May 1-10, June 1-10, 1955.

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg. 

streamflow of 5,000,000 acre-feet is diverted by Anderson canal between sampling point and gaging stati

May to November. Except for leakage through the headgate, no other diversion or appreciable inflow bet

during periods of heavy local runoff.

Chemical analyses, water year October 1961 to September 19

Date 

of 

collection

Oct. 1-13, 1961.

Oct. 25-Nov. 5..

Nov. 19-Dec. 5.. 

Dec. 6-8... .....

Dec. 9, 10......

Dec. 13- 

Jan. 5, 1962.. 

Jan. 6-26.......

Jan. 27-Feb. 9..

Feb. 27-Mar. 10. 

Mar. 11-Apr. 5..

Runoff 

(acrefeet)

58,481 

53,695 

40,058 

40,354 

53,175 

9,241

5,613 

6,149

73,833 

68,144 

42,319

18,978 

11,306 

23,306 

36,583 

59,873

Silica 

(Si02 ) 

ppm

9.7 

9.9

Equivalents per million

Calcium 

(Ca)

2.59 

3 

3 

4 

4 

4

4 

5

4 

2.99 

4

3 

4 

4 

4 

4

Magnesium 

(Mg)

1.07 

60 

96 

14 

46 

16

38 

24

28 

1.23 

30

26 

10 

32 

34 

92

Sodium

(Na)

0.70 

.65 

.70 

.78 

.87 

.78

.78 

1.00

.78 

.74 

.78

.52 

.70 

.96 

.78 

.96

Potassium 

(K)

0.06 

.07

Bicarbonate

(Hccg

2.82 

2.77 

2.98 

3.11 

3.29 

3.03

3.25 

3.82

3.18 

3.11 

3.15

2.46 

3.06 

3.08 

3.25 

3.61

Carbonate 

(C03)

Sulfate 

(SO*)

1.08 

1.31

Chloride 

(CD

0.45 

.54

Fluoride 

(F)

0.03 

.02

Nitrate 

(N03)

0.00 

.01

Bor

(B

pp

0.0

.0
Apr. 6-13

Apr. 18-May 5... 

May 6-26..... ...

May 27-June 20 . . 

June 21 -July 4. .

July 28-Aug. 18. 

Aug. 19-Sept. 8. 

Sept. 9-30......

Total or 

weighted 

average

20,819

335,389 

655,200

626,777 

372,099

480,873 

379,833 

345,862

4,397,000

9.7

8.4~

3.49 

4

3 3

3 3

2 

2 33

1.32 

08

80 

66

50

26 

.77

84 

92 

08

41

.91 

.70

.52 

.44

.39

.34 

.30

.31

.36 

.41

0.44

.08

.04

--

3.61 

3.13

2.92 

2.84

2.79

2.72 

2.56

2.36 

2.39 

2.49

2.72

1.39

.62"

.71

.15-

.02

.02"

.01

--

.01-
SNAKE RIVER MAIN STEM Continued

13-1545. SNAKE RIVER AT KING HILL, IDAHO

LOCATION. At county highway bridge, 400 yards downstream from gaging station at King Hill, Elmore County, 

DRAINAGE AREA. 35,800 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: March 1951 to September 1962.

Water temperatures: March 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 560 ppm Oct. 10; minimum daily, 355 ppm Feb. 11.

Sodium-adsorption-ratio: Maximum, 1.10 Oct. 1 to Dec. 5; minimum, 0.90 Feb. 10-15.

EXTREMES, 1951-62. Specific conductance: Maximum daily, 594 micromhos Oct. 3, 1952; minimum daily, 355 p

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg. 

gaging station except during periods of heavy local runoff.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-30, 1961. 

Oct. 31-Nov. 15. 

Nov. 16-Dec. 5.. 

Dec. 6- 

Jan. 5, 1962..

Jan. 27-Feb. 9..

Feb. 27-Mar. 23. 

Mar. 24-Apr. 7. .

Apr. 29-May 28.. 

May 29- June 15. .

July 10-Aug. 5.. 

Aug. 6-Sept. 4.. 

Sept. 5-30......

Total or 

weighted 

average

Runoff 

(acrefeet)

485,445 

247,220 

297,045

445,662 

295,902 

205,710

134,955 

166,865 

472,314 

379,934 

391 , 704 

657,521

307,970 

228,466 

122,335 

380,820 

465,977 

436 , 800

6,123,000

Silica 

(Si03) 

ppm

37.0 

36.0

29.0 

30.0

-

Equivalents per million

Calcium 

(Ca)

2.35 

4 

4

3 

2.25 

3

2 

3 

3 

3 

2.35 

3

3 

3 

2.30 

3 

4 

4

3

Magnesium 

(Mg)

1.73 

06 

04

98 

1.56 

88

72 

64 

88 

70 

1.40 

76

.80 

84 

1.48 

96 

00 

.20

,88

Sodium 

(Na)

1.57 

1.57 

1.57

1.48 

1.39 

1.48

1.04 

1.35 

1.48 

1.26 

1.26 

1.26

1.31 

1.39 

1.39 

1.52 

1.48 

1.57

1.42

Potassium 

(K)

0.13 

.13

.13 

.11

-

Bicarbonate 

(HCOj)

3.67 

3.64 

3.64

3.61 

3.47 

3.51

2.52 

3.31 

3.44 

3.26 

3.34 

3.34

3.39 

3.43 

3.41 

3.49 

3.64 

3.77

3.48

Carbonate 

(CO,)

Sulfate 

(SO.)

1.21 

1.06

1.02 

1.06

~

Chloride

(CD

0.73 

.68

.65 

.68

~

Fluoride

(F)

0.03 

.03

.04 

.04

-

Nitrate 

(NOJ

0.06 

.06

.06 

.05

--

B

p

0
BOISE RIVER BASIN 

13-2125. BOISE RIVER AT NOTUS, IDAHO

LOCATION. At highway bridge 1,100 feet downstream from gaging station, 0.2 mile southeast of Notus, Canyo

DRAINAGE AREA. 3,820 square miles, approximately, upstream from gaging station.

RECORDS AVAILABLE. Chemical analyses: January 1939 to January 1940, November 1950 to September 1962.

Water temperatures: November 1950 to September 1962.

Sediment records: January 1939 to June 1940. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 862 ppm Apr. 19; minimum 337 ppm Hay 21.

Percent sodium: Maximum, 55 June 27-28; minimum, 44 May 19-27.

Sodium-adsorption-ratio: Maximum, 3.37 Apr. 17-20; minimum, 1.61 May 19-27.

EXTREMES, 1939-40, 1950-62. Specific conductance: Maximum daily, 1,470 micromhos July 30, Aug. 26, 1939; 

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg. 

and sampling point except during periods of heavy local runoff.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-4, 1961.. 

Oct. 5-24.......

Oct. 30-Nov. 28. 

Nov. 29-Dec. 28.

Dec. 29- 

Jan. 27, 1962. 

Jan. 2 8- Feb. 9..

Feb. 27-Mar. 26. 

Mar. 27-Apr. 14.

Apr. 28-May 7... 

May 8-11 ........

Runoff 

(acrefeet)

3,594 

19,200 

7,349 

 37,845 

33,917

30,169 

12,609 

22,996 

28,657 

13,265

532 

176 

450 

332 

5,494 

833

Silica 

(Si02) 

ppm

35.0

36.0

29.0

Equivalents per million

Calcium 

(Ca)

3 

2.30 

3 

3 

3

2.64 

3 

3 

3 

2.50

2 

4 

2 

3 

2 

2

Magnesium 

(Mg)

12 

1.15 

68 

76 

72

1.23 

90 

48 

60 

.99

52 

04 

52 

28 

10 

74

Sodium 

(Na)

2.83 

3.18 

3.44 

3.35 

3.31

3.39 

3.39 

3.00 

3.26 

3.39

2.31 

4.79 

2.44 

3.70 

1.63 

3.05

Potassium 

(K)

0.13

.13 

.13

Bicarbonate 

(HCOa)

3.98 

4.47 

4.82 

4.69 

4.56

4.77 

4.64 

4.16 

4.41 

4.52

3.05 

4.77 

3.02 

4.00 

2.62 

3.72

Carbonate 

(C03)

Sulfate 

(S04 )

1.62

1.83 

1.75

"

Chloride

(CD

0.51

.59 

.62

Fluoride

(F)

0.03

.03 

.03

Nitrate 

(NOJ

0.09

.10 

.10

B

p

0
BOISE RIVER BASIN Continued

13-2125. BOISE RIVER AT NOTUS, IDAHO Continued 

Chemical analyses, water year October 1961 to September 1962 Co

Date 

Of

collection

May 12-18, 1962.

June 27-28......

June 29- July 1. .

July 11 -Aug. 7..

Sept. 10-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

3,291 

20,725 

5,950 

2,069 

522 

1,547

762 

684 

327 

1,089 

2,079 

1,369

10,885 

946 

2,539 

5,738 

7,569 

20,701

306,200

Silica 

(Si02) 

ppm

30.0

~

Equivalents per million

Calcium 

(Ca)

2 

2 

2 

2 

3 

2

3 

3 

3 

2 

2 

2.10

2 

3 

3 

3 

2 

2

3

Magnesium 

(Mg)

48 

12 

40 

94 

24 

82

52 

06 

46 

82 

54 

0.90

96 

36 

38 

.02 

.88 

.92

.35

Sodium 

(Na)

2.52 

1.65 

2.09 

2.96 

3.74 

2.96

4.18 

3.39 

4.18 

3.05 

2.44 

3.26

2.96 

3.57 

3.96 

3.13 

2.83 

2.74

3.05

Potassium 

(K)

0.11

~

-

Bicarbonate 

(HCOs)

3.34 

2.57 

3.02 

3.70 

4.10 

3.64

4.47 

3.90 

4.43 

3.61 

3.26 

3.90

3.85 

4.38 

4.54 

3.98 

3.79 

3.75

4.19

Carxmate 

(C03)

Sulfate 

(SOJ

1.71

-

Chloride 

(Cl)

0.62

-

Fluoride 

(F)

"

0.03

~

-

Nitrate 

(NOJ

~

0.06

"

--

Bo

(B

pp

0.
PART 14. PACIFIC SLOPE BASINS IN OREGON AND LOWER COLUMBIA RIV

COLUMBIA RIVER MAIN STEM 

14-1057. COLUMBIA RIVER NEAR THE DALLES, OREG.

LOCATION. At The Dalles Dam, 3.2 miles upstream from gaging station and 2.6 miles northeast of The Dalles

DRAINAGE AREA. 237,000 square miles, approximately, upstream from gaging station. 

RECORDS AVAILABLE. Chemical analyses: December 1950 to September 1962.

Water temperatures: December 1950 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 235 micromhos Jan. 18; minimum daily, 114 microm

Percent sodium: Maximum, 22 Dec. 12 to Jan. 20, Mar. 29 to Apr. 13; minimum, 10 July 1-31.

Sodium-adsorption-ratio: Maximum, 0.53 Dec. 12 to Jan. 20; minimum, 0.18 July 1-31.

EXTREMES, 1950-62. Specific condcutance: Maximum daily, 324 micromhos Dec. 7, 1955; minimum daily, 102 m

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg. 

period December 1950 to August 1953 and from left bank of river at Rufus, Oreg. for period September 19

between sampling point and gaging station except during periods of heavy local runoff.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-31, 1961.

Nov. 30-Dec. 11. 

Dec. 12-28......

Dec. 29- 

Jan. 20, 1962.

Mar. 29-Apr. 13.

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

Sept. 18-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

5,701,745 

5 , 291 , 901 

2,201,415 

2,982,783

4,621,289

2,570,182 

7,125,421 

1,723,240 

4,320,000 

5,252,231

8,456,727 

18,766,016 

23,521,983 

14,640,198 

9,610,512 

3,432,595 

2,367,074

122,600,000

Silica 

(Si02) 

ppm

9.2 

13.0

18.0

6.5

-

Equivalents per million

Calcium 

(Ca)

1.05

1 

1 

1

1.10

1 

1 

1 

1 

1.05

1 

1 

1 

.90

1 

1 

1

Magnesium 

(Mg)

0.53 

60 

60 

66

.53

.40 

.64 

62 

76 

.46

.26 

.14 

.08 

.32 

.32 

.40 

.48

1.33

Sodium

(Na)

0.44 

.42 

.40 

.48

.48

.30 

.41 

.43 

.44 

.44

.27 

.19 

.16 

.14 

.19 

.26 

.35

0.27

Potassium 

(K)

0.04 

.04

.05 

.02

-

Bicarbonate 

(HCOs)

1.51 

1.51 

1.49 

1.57

1.54

1.31 

1.52 

1.54 

1.66 

1.44

1.18 

1.05 

1.00 

1.13 

1.21 

1.29 

1.41

1.24

Carbonate 

(C03)

Sulfate 

(S04)

0.42 

.42

.37 

.23

-

Chloride 

(Cl)

0.14 

.14

.13 

.03

-

Fluoride

(F)

0.01 

.01

.02 

.01

--

Nitrate 

(N03)

0.01 

.02

.02 

.01

~

B

0
WILLAMETTE RIVER BASIN 

14-1910. WILLAMETTE RIVER AT SALEM, OREG.

LOCATION. At bridge on State Highway 22, 300 feet downstream from gaging station at Salem, Marion County.

DRAINAGE AREA. 7,280 square miles, approximately.

RECORDS AVAILABLE. Chemical analyses: August to December 1910, August 1911 to August 1912, February 1951 

Water temperatures: February 1951 to September 1962. 

EXTREMES, 1961-62. Specific conductance: Maximum daily, 71 micromhos Oct. 1; minimum daily, 38 micromhos 

Percent sodium: Maximum, 31 Oct. 11 to Nov. 2; minimum, 25 Jan. 1-15.

Sodium-adsorption-ratio: Maximum, 0.41 Oct. 1-10; minimum, 0.29 Nov. 23-25.

EXTREMES, 1951-62. Specific conductance: Maximum daily, 133 micromhos Nov. 7, 1954; minimum daily, 35 mic

REMARKS. Records of specific conductance of daily samples available in district office at Portland, Oreg.

Chemical analyses, water year October 1961 to September 1

Date 

of 

collection

Oct. 1-10, 1961. 

Oct. 11-Nov. 2..

Nov. 26-Dec. 2..

Jan. 1-15, 1962. 

Jan. 16-Feb. 14. 

Feb. 15-Mar. 14. 

Mar. 15-Apr. 5..

Apr. 16 -May 13..

May 30-June 29.. 

June 30-July 14. 

July 15-Aug. 13. 

Aug. 14-Sept. 11 

Sept. 12-30.....

Total or 

weighted 

average

Runoff 

(acrefeet)

140,450 

588,496 

542,281 

429,203 

814,869 

2,205,223

1,161,818 

1,093,686 

1,381,765 

1 , 951 , 854 

766,612 

1,637,792

685,805 

857,137 

215,851 

382,850 

349,208 

14,598

15,205,000

Silica 

(Si02) 

ppm

14.0

16.0 

14.0

16.0

-

Equivalents per million

Calcium 

(Ca)

0.27

.25 

.20

.30

Magnesium 

(Mg)

0.16 

38 

38 

28 

32 

34

.09 

38 

38 

34 

.11 

.32

.34 

38 

.13 

42 

44

0.35

Sodium

(Na)

0.19 

.17 

.15 

.11 

.13 

.13

.12 

.15 

.15 

.14 

.13 

.13

.13 

.16 

.17 

.18 

.18 

.18

0.14

Potassium 

(K)

0.02

.02 

.02

.02

"

Bicarbonate 

(HCOJ

0.49 

.44 

.38 

.18 

.30 

.30

.38 

.36 

.36 

.33 

.33 

.34

.36 

.41 

.51 

.49 

.52 

.46

0.35

Carbonate 

(COa)

Sulfate 

(S04 )

0.06

.07 

.06

.07

~

Chloride 

(Cl)

0.10

.06 

.04

.07

~

Fluoride

(F)

0.01

.00 

.01

.00

~

Nitrate 

(NOa)

0.01

.01 

.01

.01

--

Bo

(

p

0
INDEX

A Page

Acknowledgments................... 6

Alamogordo Dam, N. Hex., Pecos

River below................... 90

American River at Fair Oaks,

Calif......................... 130

Archuleta, N. Hex., San Juan River

near.......................... 109-110

Arkansas River, at Arkansas City,

Kans.......................... 47-49

at Ralston, Okla................ 50-52

at Van Buren, Ark............... 53

below John Hartin Reservoir,

Colo.......................... 45-46

Arkansas River basin.............. 45-61

Artesia, N. Hex., Pecos River near 91-93 

Austin, Tex., Colorado River at... 70

B

Bartlett Dam, Ariz., Verde River

below......................... 120

Bicarbonate....................... 11-13

Bighorn River at Bighorn, Mont.... 34-35

Bluff, Utah, San Juan River near.. 111-112 

Boise River at Notus, Idaho....... 137-138

Boise River basin................. 137-138

Boron............................. 13

Brady, Nebr., Platte River at..... 42

Brazos River at Richmond, Tex..... 68-69

Brazos River basin................ 68-69

Canadian River near Whitefield,

Okla.......................... 58-60

Cimarron River at Perkins, Okla... 54-57

Cisco, Utah, Colorado River near.. 97-98

Collection of samples............. 6-7

Colorado River, at Austin, Tex..... 70

at Lees Ferry, Ariz............. 99-100

at Wharton, Tex................. 71

below Hoover Dam, Ariz.-Nev..... 103

main stem....................... 96-103

near Cisco, Utah................ 97-98

near Glenwood Springs, Colo..... 96

near Grand Canyon, Ariz......... 101-102

Colorado River basin (Part 8)..... 70-71

Colorado River basin (Part 9) 19-20,96-120

Columbia River at Northport, Wash. 131

main stem (Part 12)............. 131

main stem (Part 14)............. 139

near The Dalles, Oreg........... 139

Criteria of water quality......... 10-16

Denison, Tex., Red River near..... 61

Discussion of results............. 16-24

Diversions and return flows at and

below Imperial Dam............ 104

E

El Paso, Tex., Rio Grande near.... 84

Elephant Butte Dam, N. Hex., Rio

Grande below.................. 83

Evadale, Tex., Neches River at.... 64-65

Examination of samples............ 7-8

Explanation of tables............. 8-10

F Page

Fair Oaks, Calif., American

River at...................... 130

Falcon Dam, Rio Grande at......... 89

Feather River at Nicolaus, Calif.. 128-129

Gila River at Kelvin, Ariz........ 115-116

below Gillespie Dam, Ariz....... 117-118

Gila River basin.................. 115-120

Gillespie Dam, Ariz., Gila River

below......................... 117-118

Glenwood Springs, Colo., Colorado

River near.................... 96

Grand Canyon, Ariz., Colorado

River near.................... 101-102

Grand Junction, Colo., Gunnison

River near.................... 105

Green River at Green River, Utah.. 108 

near Greendale, Utah............ 106-107

Green River basin................. 106-108

Guadalupe River at Victoria, Tex.. 72-73 

Guadalupe River basin............. 72-73

Gunnison River near Grand

Junction, Colo................ 105

Gunnison River basin.............. 105

H

Heise, Idaho, Snake River near.... 134-135 

Hoover Dam, Ariz.-Nev., Colorado

River below................... 103

Hudson Bay and upper Mississippi

River basins................. 16,26-27

Humboldt River at Palisade, Nev... 124 

near Rye Patch, Nev............. 125

Humboldt River basin.............. 124-125

Huron, S. Dak., James River at.... 40-41

Introduction...............

Irrigation-quality network 

stations............... 2-4

James River at Huron, S. Dak...... 40-41

James River basin................. 40-41

John Martin Reservoir, Colo.,

Arkansas River below.......... 45-46

Julesburg, Colo., South Platte

River at...................... 44

K

Kelvin, Ariz., Gila River at...... 115-116

King Hill, Idaho, Snake River at.. 136 

Kiona, Wash., Takima River at..... 132-133

Langtry, Tex., Rio Grande at...... 87

Laredo, Tex., Rio Grande at....... 88

Lees Ferry, Ariz., Colorado River

at............................ 99-100

Littlefield, Ariz., Virgin River

at............................ 113-114

Lobatos, Colo., Rio Grande near... 75-77

141
142 INDEX

Page

Locate, Mont., Powder River near.. 38-39 

Lower Mississippi River basin. 18-19,45-61 

Lynndyl, Utah, Sevier River near.. 123

Marysvale, Utah, Sevier River

below......................... 121-122

Hathis, Tex., Nueces River near... 74 

Maxwell, Nebr., Supply Canal

(Tri-county diversion) near... 43 

Miles City, Mont., Tongue River

at. ........................... 36-37

Missouri River at Nebraska City,

Nebr.......................... 30-31

main stem....................... 28-31

near Williston, N. Dak.......... 28-29

Missouri River basin.......... 16-18,28-44

N

Nebraska City, Nebr., Missouri

River at...................... 30-31

Neches River at Evadale, Tex...... 64-65

Neches River basin................ 64-65

Nicolaus, Calif., Feather River at 128-129 

Northport, Wash., Columbia River

at............................ 131

Notus Idaho, Boise River at....... 137-138

Nueces River near Mathis, Tex..... 74

Nueces River basin................ 74

Old Fort Quitman, Tex., Rio Grande

below......................... 85

Orla, Tex., Pecos River near...... 94

Pacific slope basins in

California................. 21,126-130

in Oregon and lower Columbia

River basin................ 24,139-140

in Washington and upper Columbia

River basin................ 21,131-133

Palisade, Nev., Humboldt River at. 124 

Pecos River below Alamogordo Dam,

N. Hex........................ 90

below Red Bluff Dam, near Orla,

Tex........................... 94

near Artesia, N. Hex............ 91-93

near Shumla, Tex................ 95

Perkins, Okla., Cimarron River at. 54-57 

Phytotoxic substances............. 13

Platte River at Brady, Nebr....... 42

Platte River basin................ 42-44

Powder River near Locate, Mont.... 38-39

Ralston, Okla., Arkansas River at. 50-52 

Red River at Denison Dam, near

Denison, Tex.................. 61

Red River basin................... 61

Red River of the North basin...... 26-27

Report ing of data................. 8-9

Richmond, Tex., Brazos River at... 68-69 

Rio Grande, above Culebra Creek,

near Lobatos, Colo............ 75-77

at Falcon Dam-U.S. tailrace..... 89

at Langtry, Tex................. 87

at Laredo, Tex.................. 88

at Otowi Bridge, near San

Ildefonso, N. Mex............. 78-79

Rio Grande at upper Presidio, Tex. 

below Elephant Butte Dam,

N. Mex........................

below Old Fort Quitman, Tex.....

conveyance channel at San

Marcial, N. Mex...............

floodway at San Marcial, N. Mex. 

near El Paso, Tex...............

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

Romayor, Tex., Trinity River at... 

Ruliff, Tex., Sabine River near... 

Rye Patch, Nev., Humboldt River

neat..........................

Sabine River near RuliJf, Tex.....

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

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

Salem, Oreg., Willamette River at. 

Salinity classification...........

Salt River below Stewart Mountain

Dam, Ariz.....................

San Ildefonso, N. Mex., Rio Grande

near..........................

San Joaquin River near Vernalis,

Calif....... ..................

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

San Juan River near Archuleta,

N. Mex........................

near Bluff, Utah................

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

San Marcial, N. Mex., Rio Grande

conveyance channel at.........

Rio Grande floodway at..........

Selected references...............

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

Sevier River below Piute Dam, near

Marysvale, Utah...............

Sevier River near Lynndyl, Utah... 

Sheyenne River near Warwick,

N. Dak........................

Shumla, Tex., Pecos River near....

Sidney, Mont., Yellowstone River

near..........................

Snake River at King Hill, Idaho... 

main stem.......................

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

Sodium (sodium-adsorption-ratio).. 

Sodium classification.............

Souris (Mouse) River near

Westhope, N. Dak..............

South Platte River at Julesburg,

Colo..........................

Stewart Mountain Dam, Ariz., Salt

River below...................

Summary of water discharge, and

tonnages of dissolved solids.. 

Sup'ply Canal (Tri-county

diversion) near Maxwell, Nebr.

Page

83

85

80-81 

82 

84

75-95 

66-67 

62-63

125

62-63

62-63

128-130

140

15

119 

78-79

126-127 

126-127

109-110 

111-112 

109-112

80-81 

82

24-25 

121-123

121-122 

123

26

95

32-33 

136

134-136

134-135

11-12

15

27

44

119

22-23

43

The Dalles, Oreg., Columbia River

near.......................... 139

The Great Basin................ 20,121-125

Tongue River at Miles City,

Mont.......................... 36-37

Total concentration............... 10-11

Trinity River at Romayor, Tex..... 66-67

Trinity River basin............... 66-67

U

Units for reporting data.
Upper Presidio, Tex., Rio Grande 

at...........................

INDEX 

Page

86

Van Buren, Ark., Arkansas River

at............................ 53

Verde River below Bartlett Dam,

Ariz.......................... 120

Vernalis, Calif., San Joaquin

River near.................... 126-127

Victoria, Tex., Guadalupe River at 72-72 

Virgin River at Littlefield, Ariz. 113-114 

Virgin River basin................ 113-114

W

Warwick, N. Dak., Sheyenne River

near.......................... 26

Western Gulf of Mexico basins.... 19,62-95

Westhope, N. Dak., Souris (Mouse)

River near....................

Wharton, Tex., Colorado River

at............................

Whitefield, Okla., Canadian River

near..........................

Willamette River at Salem, Oreg... 

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

Williston, N. Dak., Missouri River

near..........................

143 

Page

27

71

58-60 

140 

140

28-29

Yakima River at Kiona, Wash....... 132-133

Yakima River basin................ 132-133

Yellowstone River near Sidney,

Mont.......................... 32-33

Yellowstone River basin........... 32-39

Yuma Main Canal below Colorado

River siphon at Yuma, Ariz.... 104

U.S. GOVERNMENT PRINTING OFFICE: 1965 0 792-031