UNITED STATES DEPARTMENT OF THE INTERIOR 

Harold L. Ickes, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

Water-Supply Paper 970

QUALITY OF SURFACE WATERS

OF THE UNITED STATES

1943

With a summary of analyses of streams in Colorado River" 

Pecos River, and Rio Grande Basins, 1925 to 1943

BY 

C. S. HOWARD AND S. K. LOVE

Prepared in cooperation with the States of

GEORGIA, NEW MEXICO, and TEXAS

and other agencies

UNITED STATES

GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1945

For gale by the Superintendent of Documents, U. S. Government Printing Office, Washington 25, D. tl

Price 30 cents
CONTENTS

	Page

Introduction. ________-__ __--____-_-__-________----_---------_-----:---- 1

Analytical methods__________________________--_-----_-_---------,-_-- 2

Cooperation and division of work____---_-_---_------------------------ 2

South Atlantic slope and eastern Gulf of Mexico basins-______________ 2

Florida....___-_-___.-_...---------__---..------- 2

Georgia____________________--_--__-_-_-_------_--- r ------- 2

Lower Mississippi River Basin._.--_-______-__-__--_-----_----__-- 3

Colorado-______-____;____--__-_.__-__-------------------- 3

New Mexico.-______-_-______.__---__^-------------------- 3

Texas____________________________--__-----------------_-- 3

Western Gulf of Mexico basins.._____.--____--__---_--__-------_-- 3

New Mexico._________________________--_-____---_-----_-- 3

Texas___-____--_.-_._-.._-.-.--__-_---_--_--_--_------- 3

Colorado River Basin._________________-_-__-__--__-_---------_-- 4

Publications.-.....--..-_--_----_----_--.___--___--_----_---_-----_-- 4

Chemical analyses, suspended sediment, and water temperature.____________ 5

South Atlantic slope and eastern Gulf of Mexico basins. ___._._-____-__.__ 5

Canals in Broward, Dade, and Palm Beach Counties, Fla._---.____.__ 5

Tidal canals in and near Miami, Fla.________-__________-_._---___-_ 8

Conasauga River at Tilton, Ga..______-__-__----____-____--_---_-- 14

Miscellaneous streams in Georgia.______-_____--_____---_-__-_---_- 18

Lower Mississippi River Basin_____-___-_______---__----_--_----_-_---_ 22

Canadian River near Sanchez, N. Mex.__-__________________________ 22

Conchas River near Variadero, N. Mex.._._________________________ 25

Reservoir behind Conchas Dam, N. Mex.---___--_------------------ 25

Pease River near Crowell, Tex.__-______-'-_--__---___-_--___----__- 29

Miscellaneous streams in Arkansas River Basin._-___-__--_-_--__-___ 32

Western Gulf of Mexico basins.________________-___---_--_----------__ 38

Brazos River near South Bend, Tex.__..---__----_-__-___--___----_ 38

Brazos River at Possum Kingdom Dam, near Gfaford, Tex.___________ 42

Rio Grande at San Acacia, N. Mex.______________________________ 45

Pecos River near Guadalupe, N. Mex.____-_---_-_-___-__---____-_ 48

Pecos River near Acme, N. Mex.__-____--_---______-__---____-__-- 51

Pecos River near Artesia, N. Mex.-_______-____-_---_--__--------._ 55

Pecos River at Carlsbad, N. Mex._________________________________ 59

Pecos River near Malaga, N. Mex._-__ -_--___--_--__---------_---- 62

Pecos River at Red Bluff, N. Mex._ _ __---------_-_-------- .. __ 65

Pecos River near Orla, Tex.___.----_._-____-__--__-----_--.----_ 68

Carlsbad project main canal near Carlsbad, N. Mex._.__-__.-...___-. 71

Refinery intake canal near Loving, N. Mex.__._ ___________ .-._-_.... 74

Miscellaneous streams in Pecos River Basin.____-___--__-___-_--____ 75

Colorado River Basin._______________________________________________ 80

Colorado River near Glenwood Springs, Colo.__.-___--__--____-_____ 80

Colorado River near Cameo, Colo..___________________-_-_._--__- 83

Colorado River near Cisco, Utah_-____--__-_-_---__--_--_-----_-__ 84

Colorado River at Lees Ferry, Ariz.________________._-...___---_.._ 87

Colorado River at Bright Angel Creek, near Grand Canyon, Ariz. _____ 92

Colorado River below Boulder Dam, Ariz.-Nev._____________________ 94

Colorado River at Yuma, Ariz.____________________ ___-.-___.______ 97

Gunnison River near Grand Junction, Colo.______.____-.___.______ 100

Green River at Green River, Utah__.______ ________________________ 101

San Juan River at Ship Rock, N. Mex.__________-__.---_____-____ 104

San Juan River near .Bluff, Utah_______________________________ 107

Animas River at Farmington, N. Mex.___________ _^_.______________ 114

in
IV CONTENTS

Page

Chemical analyses, suspended sediment, and water temperature Continued. 

Colorado River Basin Continued. 

Gila River at Safford, Ariz._______________________________________ 117

Lake Mead, Ariz.-Nev._____ ______________________________________ 120

Miscellaneous streams in Colorado River Basin______________________ 125

Summary of analyses of streams in Colorado River, Pecos River, and Rio

Grande Basins, 1925 to 1943_____-________________._________________ 158

Colorado River Basin_______________________________________________ 159

Weighted average analyses, water years 1926 to 1943_________________ 159

Maximum and minimum dissolved solids and total hardness, water 

years 1926 to 1943________________________________________:____ 164

Publications____________________________:___._______________ 167

Pecos River Basin.__________________________________________________ 169

Weighted average analyses, water years 1938 to 1943_---__-___-______ 169

Maximum and minimum dissolved solids and total hardness, water 

years 1937 to 1943 ---___---__--_---__-------_---_-_----__-__ 172

Publications_ _ __ _ ____________________________________________ 174

Rio Grande Basin_______________________________________________ 176

Weighted average analyses, water years 1941 to 1943__-_-_-____-_____ 176

Maximum and minimum dissolved solids and total hardnes?. water 

years 1937 to 1943. .--._.._...-_--_.-__-____.-.___---.___-_ 176

Publications_________-____________-____--__--.---___-_--_____ 176

Index____________________________________________ _________.________ 177
QUALITY OF SURFACE WATERS OF THE 

UNITED STATES, 1943

WITH A SUMMARY OF ANALYSES OF STREAMS

IN COLORADO RIVER, PEGOS RIVER, AND

RIO GRANDE BASINS, 1925 TO 1943

, By C. S. HOWARD and S. K. LOVE

INTRODUCTION

The water analyses given on the following pages indicate the suitability of the waters examined for industrial or agricultural use, and 

for domestic use so far as such use is affected by the dissolved or suspended mineral matter in the waters. The samples for which detailed 

analyses are given were collected between October 1, 1942, and 

September 30, 1943.

Most of the analyses are of 10-day composites of daily samples 

collected for a period of a year at a sampling point. Tve samples 

were generally taken at points where gages are maintained for measurement of discharge. The discharge corresponding to an analysis of 

a composite sample is the average of the mean daily discharges for 

the normal composite period. For some analyses the composite 

periods differ from the normal 10- or 11-day period. For these 

analyses, the discharges reported are the averages of the mean daily 

discharges either for the irregular periods or for slightl;r different 

periods as indicated by footnotes. The discharges reported in the 

tables of single, analyses are either mean daily discharges or are instantaneous discharges for the particular times when tl « samples 

were collected. In addition to the tables of analyses, records of suspended sediment for certain stations in the Colorado River Basin 

and records of daily river temperatures for one station in Georgia 

are included.

In order that complete information may be readily available, descriptive statements are given for each station for whi".h regular' 

series of analyses have been made. These statements include the 

location of the sampling station, drainage area, length cf time for 

which records are available, extremes of dissolved solids and hardness, and other pertinent data.

A summary is given of analyses made by the Geological Survey 

from 1925 to 1943 for streams in the Colorado River, Pecos River, 

and Rio Grande Basins. Tables include weighted average analyses 

and maximum and minimum dissolved solids and total hardness by 

years, and references to published analytical data in reports of the
2 QUALITY OF SURFACE WATERS, 1943

Geological Survey. Included also is a table of references to published 

sediment records for stations in the Colorado River Basin.

ANALYTICAL METHODS

For each month three composite samples were regularly made by 

mixing together equal quantities of daily samples collected from the 

1st to the 10th, from the llth to the 20th, and during the remainder 

of the month. For some streams that are subject to sudden large 

changes in chemical character, composite samples were at times made 

more frequently on the basis of the concentration of dissolved solids 

indicated by measurements of the specific conductance of the daily 

samples.

The samples were analyzed according to the methods1 regularly 

used by the Geological Survey. The results are reported in parts 

per million and, for most stations, in equivalents per mill"on. The 

constituents determined were not the same for all projects In the 

analyses of some waters used for irrigation the quantity of dissolved 

solids is given in tons per acre-foot as well as in parts per million. 

These analyses also give results for percent sodium, which has a bearing on the suitability of the water for irrigation. In analyses of waters 

carrying fairly large quantities of soluble salts the quantity reported 

for dissolved solids is the sum of the quantities of the various constituents determined. In other analyses the quantity reported as 

dissolved solids is the residue on evaporation, after heating at 180° C. 

for 1 hour. The total hardness as CaC03 is calculated from the calcium and magnesium. In some of the analyses the noncarbonate 

hardness also is reported. This is calculated from the total hardness 

and the bicarbonate.

COOPERATION AND DIVISION OF WORK

The analyses reported were made in connection with various Federal and cooperative projects, as described below. The descriptions 

of the work and the tables of analyses are arranged by drainage 

basins, according to Geological Survey practice in reporting records 

of stream flow.

SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO BASINS

Florida. The work on the quality of surface waters in Florida was 

confined to an area in the southeastern part of the State. It formed 

a part of a general study of the sources of water available for public 

and private supplies for Miami, Miami Beach, and the surrounding 

territory. The study was made under a cooperative agreement between the Geological Survey and Bade County and the cities of 

Miami, Miami Beach, and Coral Gables. The quality of water investigations were made under the direction of S. K. Love. Analyses 

were made in the Geological Survey laboratory in Washington by 

S. K. Love and M. B. Thomas. Records of discharge were furnished 

by G. E. Ferguson, district engineer, Ocala, Fla. 

, Georgia. Quality of water investigations in Georgia were made as 

part of a general study of the water resources of Georgia under a 

cooperative agreement between the Geological Survey and the Georgia

i Collins, W. D., Notes on practical water analysis: U. S, Geol. Survey Water-Supply Paper 59Q 

pp. 236-261, 1928.*
COOPERATION AND DIVISION OF WORK 3

Division of Mines, Mining, and Geology, Capt. Garland Peyton, 

director. The sampling and the analytical work were under the 

direction o£ W. L. Lamar. The analyses were made in the Geological 

Survey laboratory in Washington by W. L. Lamar and M. B. Thomas. 

Records of discharge were furnished by M. T. Thomson, district engineer, Atlanta, Ga.

LOWER MISSISSIPPI RIVER BASIN

Colorado. Quality of water studies in Colorado, which were made 

in cooperation with the Corps of Engineers, United States Army, consisted of analyses of miscellaneous samples collected from streams 

above John Martin Reservoir in the Arkansas River Basin. The 

work was done under the direction of C, S. Howard. Analyses were 

made in the Geological Survey laboratory in Albuquerque, N. Mex., 

by T. Downer, J. D. Hem, C. S. Howard, and W. F. White, Jr.

New Mexico. In cooperation with the Corps of Engineers, United 

States Army, records were obtained of the contributions p.f the Canadian River and the Conchas River to the storage behird Conchas 

Dam, in New Mexico, and of the quality of water in th^ reservoir. 

Work on the quality of water was under the direction of-C. S. Howard. 

The analyses were made in the Geological Survey laboratories in 

Roswell and Albuquerque, N. Mex., by T. Downer, J. D. Hem, C. S. 

Howard, W. F. White, Jr., and H. B. Waha. Records of discharge 

were furnished by Berkeley Johnson, district engineer, Santa Fe, 

N. Mex.

Texas. Quality of water studies in the lower Mississippi River 

Basin in Texas were confined to analyses of samples collected from 

the Pease River near Crowell. The work was done by the Geological 

Survey in cooperation with the Texas State Board of Water Engineers, and was under the direction of W. W. Hastings Analyses 

were made in the Geological Survey laboratory in Austin, Tex., by 

W. W. Hastings and J. H. Rowley. Records of discharge were furnished by C. E. Ellsworth, district engineer, Austin, Ter.

WESTERN GULF OF MEXICO BASINS

New Mexico. Work on the quality of surface waters in New Mexico 

was done under a cooperative agreement between the GeoMgical Survey and the New Mexico Interstate Stream Commission, Thomas M. 

McClure, secretary. The quality of water investigations were made 

under the supervision of C. S. Howard. The analyses wc^e made in 

the Geological Survey laboratories in Roswell and ^Albuquerque, 

N. Mex., by M. Cummings, T. Downer, J. D. Hem, C. S. Howard, 

W. L. Minton, H. B. Waha, and W. F. White, Jr. Records of discharge were furnished by Berkeley Johnson, district enginee", Santa Fe, 

N. Mex.

Texas. Quality of water investigations in Texas were made in 

cooperation with State and local agencies. Work on the Brazos River 

was done under a cooperative agreement with the Texas State Board 

of Water Engineers^ and work on the Pecos River was dene under a 

cooperative agreement with the Red Bluff Water Power Control District. The investigations were made under the direction of W. W. 

Hastings. Analyses, were made in the Geological Survey laboratory 

in Austin, Tex., by W. W. Hastings, B. Irelan, J. H. Rowley, P. A.
4 QUALITY OF SURFACE WATERS, 1943

Witt, and J. Yett. Records of discharge were furnished by C. E. 

Ellsworth, district engineer, Austin, Tex.

COLORADO RIVER BASIN

Study of the quality of the water of the Colorado River and tributaries has been a continuing Federal project under the direction of 

C. S. Howard, with the cooperation of the following district engineers 

of the Geological Survey: J. H. Gardiner, Tucson, Ariz.; Robert 

Follansbee, Denver, Colo.; Berkeley Johnson, Santa Fe, N. Mex.; 

and M. T. Wilson, Salt Lake City, Utah. Samples were collected 

in the Safford Valley of the Gila River after June 1, 1943, as part of 

an investigation undertaken at the request of and financed by the 

Defense Plant Corporation. Samples were collected from Lake Mead 

by the Bureau of Reclamation. The analyses were made in the Geological Survey laboratory in Albuquerque, N. Mex., by T. Downer, 

J. D. Hem, C. S. Howard, R. T. Riser, W. L. Minton, R. L. White, 

W. F. White, Jr., and H. B. Waha, and by chemists in the Rubidoux 

Laboratory of the Department of Agriculture at Riverside, Calif.

In addition to the tables of analyses of the dissolved mireral matter, records are given of the loads of suspended sediment at a few 

points in the Colorado River Basin. The samples were collected by 

Roy Cabell, Jules Conrath, Frank Dodge, A. V. Maxwell, N. D. 

Nevills, J. W. Ravdin, and N. A. Talvitie.

PUBLICATIONS

-Records of chemical analyses of series of samples collected in the 

years ended September 30, 1941 and 1942, for most of the stations 

listed' in this report are included in Water-Supply Papers' 942 and 

950, respectively. References to published chemical analyses of 

series of samples made by the Geological Survey in the Colorado 

River, Pecos River, and Rio Grande Basins are given in-summarized 

form on pages 167-168, 174-176. References to suspended sediment 

data are included in the section on the Colorado River Bar^n. Analyses that were representative of a large number of rivers tbroughout 

the United States in 1905 to 1912 are given in Professional Paper 135.
SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO 5

CHEMICAL ANALYSES, SUSPENDED SEDIMENT, 

AND WATER TEMPERATURE

SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO

BASINS

CANALS IN BROWARD, DADE, AND PALM BEACH COUNTIES, FI A.

[Single samples collected at monthly intervals at gaging stations.] 

Chemical analyses, in parts per million

Cypress Creek Canal at Pompano

Date of collection

1

Oct. 8, 1942. ..

Nov. 11.......

Dec. 10.......

Jan. 7, 1943...

Feb. 4.....;...

Mar. 4........

Apr. 2.... ...

May 6.. ......

Color

45

45

150

60

60

45

40

40

60

Specific

conductance

(KX105

at25°C.)

48.8

45.2

47.4

48.3

64.5

45.3

44.4

44.6

57.5

Calcium

(Ca)

90

86

70

87

90

86

86

86

98

Magnesium

(Mg)

2.6

2.2

7.0

4.4

8.7

3.3

3.9

4.1

5.9

Sodium

and potassium

(Na+K)

10

7.8

21

9.2

33

5 3

3 6

3.8

. 16

Bicarbonate

(HCOs)

260

244

187

258

282

252

246

252

286

Sulfate

(S04)

14

12

38

12

18

10

12

8.6

16

Chloride

(CD

21

20

38

22

59

16

17

17

38

Nitrate

(N0»)

, 0.3

.3

2.6

.1

.4

.2

.4

.2

..0

'

Dissolved

solids

266

248

269

262

348

245

244

244

315

Total

hardness as

CaCOs

23S

224

204

235

260

228

231

232

269

Hillsboro Canal near Deerfield Beach

Oct. 7,1942... 

Nov. 11...

Dec. 10.......

Jan. 7, 1943.. . 

Feb. 4........

Mar. 4........

Apr. 1.........

July? ......

Sept. 2........

160 

100

90

100 

90

65

65

80

120

90

186

170

114 - 

94.7

94.4

94.7 

116

103

123

120

147

144

115

105

89 

80

85

80 

98

98

103

104

106

106

102

99

27 

21

21

21 

23

17

22

22

27

26

29

26

114

88

86

90 

113

95

125

121

182

166

104

86

365 

307

329

325 

374

336

360 -377

384

395

442

394

42 

30

31

22 

34

37

43

36

52

47

21

34

167 

138

129

136 

172

147

198

188

285

255

152

134

2.4 

1.2

1.6

.2 

.5

.2

.3

.4

.0

.9

.0

.2

620 

509

516

509 

625

560

669

657

841

796

626

573

333 

286

298

286 

339

314

348

350

376

372

374

354

North New River Canal near Fort Lauderdale

Oct. 8, 1942... 

Nov. 11.......

Dec. 10. ......

Jan. 7, 1943... 

Feb. 4........

Mar. 5........

Mar. 31......

May 5. .......

JulyS ......

Sept. 2... .....

180 

100

50

75 

50

50

40

40

85

120

150

160

94.4 

72 2

Eft R

68 5 

59.3

65.9

52.5

51.9

81.3

104

95.2

75.1

106

74

u

72 

64

67

58

60

83

106

94

82

33 

21

16

20

17

19

17

16

27

36

31

24

48 

47

29

43 

34

95

26

23

49

67

64

20

368 

280

190

269 

227

250

204

203

318

384

362

300

81 

37

36

33 

38

36

38

34

42

78

50

38

83 

74

50

70

56

148

46

45

86

116

109

78

1.8 

.4

.4

.4 

.2

.5

i .4

.2

.2

.3

.0

.4

. 534 

391

279

371 

321

489

286

278

444

592

526

391

400 

271

201

262 

230

245

214

216

318

412

362

303

Taniiami Canal at Krome Are., near Miami

Oct. 16, 1042... 

Nov. 3........

Dec. 9--.. _ .

Jan. 5, 1943... 

Feb. 5.. ......

Mar. 8. ....

Apr. 2........

May 7. .......

40 

. 50

50

50 

35

35

36

38

40

28.4 

33.3

53.7.

56.0 

57.3

58.5

58.5

55.7

61.6

48

57

97

101 

104

108

110

103

107

3.7 

4.4

7.0

7.4 

8.3

7.4

8.3

8.3

9.2

5.1

5.3

11

12 

6 9

6.2

4.1

3.9

12

150 

175

312

327 

332

340

342

324

338

2.7 

2.7

4.9

4.7 

5.8

4.3

3.9

3.5

7.2

14

17

23

23 

20

20

21

20

32

0.4 

1.1

2.8

4.2 

2.9

3.2

4.6

2.9

2.2

148 

174

299

313 

312

317

320

301

336

135 

160

271

282 

294

300

308

291

305
QUALITY OF SURFACE WATERS, 1943

CANALS IN BROWARD, BADE, AND PALM BEACH COUNTIES, FLA. Continued

Chemical analyses, in parts per million Continued

Tamiami Canal near Coral Gables

Date of collection

Oct. 16, 1942...

Nov. 3........

Dec. 11.......

Jan. 5, 1943. ..

Feb. 5. .......

Mar. 8........

Apr. 2........

May?........

July 6........ .

Sept. 4........

Color

70

65

70

80

60

55

60

70

38

45

33

32

Specific

conductance

(KX105

at25°C.)

41.6

43.0

44.7

45.0

46.4

44.9

42.1

45.0

46 6

45.8

46.7

46.5

Calcium

(Ca)

74

79

82

84

87

84

an

84

88

88

87

90

Magnesium

(Mg)

4.6

3.1

5.7

6.1

6 6

6 6

5.4

5 7

7.0

7.0

7.0

7.2

Sodium

and potassium

(Na+K)

4.8

7.4

7.1

6.2

1.2

2.1

1.1

3.8

.9

1.4

3.2

Bicarbonate

(HC03)

232

243

258

263

268

258

238

257

267

260

264

260

Sulfate

(SO,)

3.5

5.6

4.9

7.6

4.5

7.4

5.3

7.2

9.5

12

13

16

Chloride

(CD

14

14

18

16

15

15

16

16

15

18

16

15

Nitrate

(NOs)

1.2

1 4

3.2

2.7

1.8

1.2

1 s

.8

.4

.7

.6

.4

Dissolved

solids

216

230

148

252

248

243

244

252

255

257

Total

hardness as

CaCOs

204 9in

229

234

f)AA

236

999

900

248

248

> 246

9U

West Palm Beach Canal at West Palm Beach

Oct. 8, 1942... 

Nov. 11.......

Dec. 10.......

Jan. 7, 1943..- 

Feb. 4. _______

Mar. 4 __ 

Apr. 1. .......

July 7 _._ 

Sept. 2........

80 

150

65

75 

60

65

42

50

55

160

180

190

79.9 

101

91 3

85.2 

75.5

78.4

60.6

68.4

74.5

110

70.7

51.8

55 

67

56

56 

54

59

56

59

58

88

63

46

18 

25

19

17 

16

16

14

16

16

28

17

12

84 

103

105

99

77

79

47

58

72

108

56

41

212 

252

214

211 

194

210

188

200

206

320

218

160

47 

67

50

50 

45

46

36

40

41

70

39

25

121

153

154

141 

115

116

77

94

110

158

92

68

1 2 

1.6

2.2

1.5 

.6

.7

.6

.8

.2

13

1.4

.4

431 

541

492

468 

403

420

323

366

399

623

375

271

212 

270

218

210 

201

213

198

213

210

334

227

, 164

Chemical analyses, in equivalents per million 

Cypress Creek Canal at Pompano

Nov. 11...... _

Dec. 10.... 

Jan. 7, 1943...

Feb. 4. .......

Mar. 4_. _..___

Apr. 2. _______

4.49

4.29

3.49

4.34

4.49

4.29

4.29

4.29

4.89

0.21

.18

.58

.36

.72

.27

.32

.34

.49

0.44

.34

.90

.40

1.45

.23

.16

.16

.71

4 26

4.00

3.07

4.23

4.62

4.13

4.03

4.13

4.69

0.29

.25

.79

.25

.37

.21

.25

.18

.33

0 59

.56

1.07

.62

1.66

.45

.48

.48

1.07

0.00

.00

.04

.00

.01

.00

.01

.00

.00

Hillsboro Canal near Deerfield Beach

Oct. 7, 1942...

Nov. 11.... 

Jan. 7, 1943...

Feb. 4..... 

Apr. !..__. 

May6__ .

July 7........ .

4.44

3.99

4.24

3.99

4.89

4,89

5.14

5.19

5.29

5.29

5.09

4.94

2.22

1.73

1.73

1.73

1.89

1.40

1.81

1.81

2.22

2.14

2.38

2.14

4.94

3.84

3.74

3.91

4.92

4.14

5.43

5.24

7.90

7.22

4.50

3.87

5.98

5.03

5.39

5.33

6.13

5.51

5.90

6.18

6 29

6.47

7.24

6.46

0.87

.62

.65

.46

.71

.77

.90

.75

1.08

.98

.44

.71

4.71

3.89

3.64

3.84

4.85

4.15

5.58

5.30

8.04

7.19

4.29

3.78

0.04

.02

.03

.00

.01

.00

.00

.01

.00

.01

.00

.00

r
SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO 7

CANALS IN BBOWARD, DADE, AND PALM BEACH COUNTIES, FLA. Continued

Chemical analyses, in equivalents per million Continued

North New River Canal near Fort Lauderdaie

Date of collection

Oct. 8, 1942...

Nov. 11.......

Dec. 10--.- 

Jan. 7. 1943....

Feb. 4.. ......

Mar. 5........

Mar. 31 

May5. .......

JulyS.........

Sept. 2........

Color

Specific 

conductance (KX106 

at25°C.)

Calcium 

(Ca)

5.29

3.69

2.70

3.59

3.19

3.34

2.g9

2.99

4.14

5.29

4.69

4.09

Magnesium 

(Mg)

2.71

1.73

1.32

1 64

1.40

1.56

1.40

1.32

2.22

2.96

2.55

1.97

Sodium 

and potassium 

(Na+K)

2.09

2.04

1.26

1.85

1.50

4.13

1.15

1.00

2.15

2.93

2.80

.86

Bicarbonate 

(HCOs)

6.03

4 59

3.11

4.41

3.72

4.10

3.34

3.33

5.21

6.29

5.93

4.92

Sulfate 

(SCW

1.69

.77

.75

.69

.79

.75

.79

.71

.87

1.62

1 04

.79

Cbloride 

(CD

2.34

2 09

1.41

1.97

1.58

4.17

1.30

1.27

2.43

3.27

3.07

2.20

Nitrate 

(NO.)

0.03

.01

.01

.01

.00

.01.

.01

.00

.00

.00

.00

.01

Dissolved 

solids

Total 

hardness as 

CaCOa

Tamiami Canal at Krome Ave., near Miami

Oct. 16, 1942...

Nov. 3........

Jan. 5, 1943....

Feb. 5.. ......

Mar. 8........

Apr. 2........

May7..._..._

2.40

2.84

4.84

5.04

5.19

5.39

5.49

5.14

5.34

0 30

.58

.61

68

.61

.68

.68

.76

0.22

.23

.49

.53

.30

.27

.18

.17

.53

2.46

2.87

5.11

5.36

5.44

5.57

5.61

5.31

5.54

0.06

.06

.10

.10

.12

.09

.08

.07

.15

0.39

.48

.65

.65

.56

.56

.59

.56

.90

0.01

.02

.05

.07

.05

.05

.07

.05

.04

Tamiami Canal near Coral Gables

Oct. 16, 1942...

Nov. 3........

Dec. 11_'..____

Jan. 5, 1943...

Feb. 5-. ....

Mar. 8........

Apr. 2.. ......

Mav 7

July 6- .....

Sept. 4.......

3.69

3.94

4.09

4.19

4.34

4 10

3.99

d. 10

4.39

4.39

4.34

4.49

0.38

.25

.49

.50

L .54

.54

.44

.47

.58

.58

.58

.59

0.21

.32

.31

.27

.05

.09

.05

.16

.04

.06

.14

3.80

3.98

4.23

4.31

4.39

4.23

3.90

4.21

, 4.38

4.26

4.33

4.26

0.07

.12

.10

.16

.09

.15

.11

.15

20

.25

.27

.33

0.39

.39

.51

.45

.42

42

.45

.45

.42

.51

.45

.42

0.02

.02

.05

.04

.03

.02

.02

.01

.01

k .01

.01

.01

West Palm Beach Canal at West Palm Beaeh

Oct. 8, 1942...

Nov. 11.......

Dec. 10.......

Jan. 7, 1943...

Feb. 4.. ......

Mar. 4........

Apr. 1........

May5. ....

July 7- ......

Sept. 2........

2.75

3.34

2.80

2.80

2.70

2.94

2.80

2.94

2.89

4.39

3.14

2.30

1.48

2.06

1.56

1.40

1.32

1.32

1.15

1.32

1.32

2 30

1.40

.99

3.66

4.47

4.57

4.30

3.35

3.42

2.06

2.51

3.12

4.69

2.45

1.78

3.48

4.13

3.51

3.46

3.18

3.44

3.08

3.28

3.38

5.25

3.57

2.62

0.98

1.39

1.04

1.04

.94

.96

.75

.83

.85

1.46

.81

.52

3.41

4.32

4.34

3.98

3.24

-3.27

2.17

2.65

3.10

4.46

2.69

1.92

0 02

.03

.04

.02

.01

.01

.01

.01

.00

.21

v .02

.01

T
8 QUALITY OF SURFACE WATERS, 1943

TIDAL CANALS IN AND NEAR MIAMI, FLA.

[Single samples collected at semimonthly or monthly intervals at several bridges on each canal to give 

information about extent of salt-water contamination from Biscayne Bay. The values reported were 

determined on bottom samples]

Snake Creek Canal at U. S. Highway 1

Date

1942

Oct. 7.......

Nov 9 ..

Nov 24.....

Dee. 10.....

Dec. 23.....

1943

Specific

conductance

(KXlOs

-at 25° C.)

3,720

4,300

3,450

4.250

2,650

3,960

Chloride

(Cl,

p. p. m.)

13, 750

16,000

12,600

16,000

9,200

14,550

Date

1943

Jan. 24. ..

Feb 8.-. 

Mar. 15.....

Apr. 2......

Apr. 17--.-.

Specific

conductance

(KX10*

at 25° C.)

4,200

4,440

4,550

3,330

5,130

4,070

Chloride

(Cl,

p. p. m.)

15,350

16,120

16,450

11,900

19,200

14,800

Date

1943

May 15......

June 19... _

July 4 .......

Specific

conductance

(KX10'

at 2o° C.)

4,900

4,380

5,140

Chloride

(Cl,

p. p. m.)

18,300

15,800

19,200

14,200

Snake Creek Canal at Miami Drive

1942

Oct. 7.......

Nov. 9......

Nov. 24.....

Dec. 10.... .

Dec. 23.....

61.9

60 4

59.3

59.1

59.5

24

35

35

36

32

1943

Jan. 24......

Feb. 8-..--

Feb. 26.. ..

Mar. 15...-.

59.3

61 5

60 7

59.8

125

34

36

30

30

210

1943

May 15......

June 19.. __

July 4... .....

3,500

183

107

2,550

12,200

360

164

8,680

165

Snake Creek Canal at Miami Gardens Drive

1942 

Oct. 7. ...

Nov. 9......

Nov. 14-...

Dec. 10..... 

Dec. 23.....

1943

54.3

55.3

56.3

55.5 

67.9

57.0

23

23

31

27 

27

28 '

1943 

Feb. 8......

Feb. 26_.__-

Mar. 15.....

Apr. 2... _ 

Apr. 17---.

57 4

59 3

60.6

1,100 <t2

26

28

25

3,380 

2,400

1943

May 15......

June 19. ... . 

July 4........

106

83 2

98 4

97.7

155

98

109

102 

149

Snake Creek Canal at Florida Highway 149

1942 

Oct. 1. ......

Nov. 9 ... 

Nov. 24.....

Dec. 10-. 

1943 

Jan. 6. ___

50.0

52 0 

50.8

43.4 

50 4

51.4

15

17 

20

13 

16

18

1943 

Jan. 24 

Feb. 8... 

Feb. 26.....

Mar. 15... ..

Apr. 17 ...

52.1

51 9 

52.7

48.3 

49.9

56.3

18

16

17

17 

24

30

1943

May 15......

June 19.. _. 

July4 ...I

49 9

48.0 

55.5

51.7

17

15 

17

20 

17

Biscayne Canal at U. S. Highway 1

1943 

Oct. 7... ....

Nov. 9 _. 

Nov. 24.....

Dec. 10.. 

Dec. 23.....

1943

Jan. 6.- .... 

Jan. 24......

1,696

4,250 

3,020

4,530

3,590

4.920 

4,840

5,620

15,800 

10,800

17,300

13, 100

18,600 

17,940

194S 

Feb. 8.. 

Feb. 26..... 

Mar. 15 

Apr. 2... 

Apr. 16_._..

May5 ...

May 15. .

4,010

4,890 

. 4,730

3,520

4,720

2,236 

4,170

14,380

18,030 

17, 170

14,000

17,500

7,510 

15,400

1943

June 19.- 

July 4-.... ...

July 18. -

Aug.21... ... 

Sept. 6... 

4,490

4,220

4,020

252 

78.2

16,400

15,400 

17,800

17,600

14,600

635 

99
SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO 9

TIDAL CANALS IN AND NEAK MIAMI, FLA. Continued 

Biscayne Canal at Northeast Sixth Avenue

Date

194S 

Oct. 7 ....

Nov. 9......

Nnv Oi

Dec. 10 

1943

Specific 

conductance (KX105 

at 25° C.)

3,230

4,520

3,510

4,070

3,690

4,110

4,220

Chloride 

(Cl, 

p. p. m.)

11,600

17 9ftft

12, 900

15,200

13,350

15,050

15,490

Date

1943 

Feb.8 

Feb.26 -

Mar. 15. 

Apr. 16---..

May 5.. .

May 15

Specific 

conductance (KX106 

at 25° C.)

4.100

4,230

4 4^0

4,080

4,790

2,750

3,580

3,850

Chloride 

(Cl, 

p. p. m.)

14,770

15,250

14,700

17,800

4,900

12,800

13, 900

Date

1943

July 4.... 

July 18.^ .

Aug. 21......

Sept. 6 

Sept. 21... ...

Specific 

conductance 

(KXW 

at 25° C.)

3,500

2,143

63.5

69 1

1,383

Chloride

(a, 

p. &. in.)

12,400

5,040

16.100

7,210

55

71

4,420

Biscayne Canal at West Dixie Highway

194% 

Oct. 7... ....

Nov. 9......

Nov. 24.....

Dec. 10.....

Dee. 23.....

1943

Jan. 6 .......

Jan. 24 

62.5

3,780

802

2,790

1,271

1,913

2,840

32

13,900

2,450

9,900

,4,020

6,350

9,910

1943 

Feb.8- 

Feb. 26-.-

Mal- 115

Apr. 16.....

May 15 

249

3,180

3,370

3,150

3,780

1,278

481

1,294

605

11,080

11,710

10,900

13,500

4,050

1,340

4,100

1943

July 4........

July 18 __ -

Aug. 21.. .

Sept. 21 

2.580

72.2

57.5

62 9

58.2

8,930

7,260

8,640

63

41

55

35

Biscayne Canal at Northwest Seventh Avenue

194%

Oct. 7 ._

Nov. 9 

Nov. 24 .

Dec. 10- 

Dec.23...._

194S 

Jan. 6. ..

Jan. 24 ...

47.3

51 4

49.6

. 52.3

49.2

52 8

50.9

15

24

18

25

17

25

18

1943

Feb.8 

Feb. 26 

Mar. 15 

Apr. 16 

May 5. 

May 15- 

June 1- -.-.-

49 2

51.7

1,360

1 , 620

855

63.5

58.7 

55.8

15

17

5,140

5,180

1,325

55

35 

15

1943

July 4........

July 18...- 

Aug. 21 

Sept. 6. 

Sept. 21 

62.2

55,2

51.5

50.fi

49.3

32

21

23

28

21

21

17

Biscayne Canal at Northwest Twenty-seventh Avenue

W42 

Oct. 7- ....

Nov. 9 

Nov. 24 _ _

Dec. 10 ..

Dec. 23.. 

1943

Jan. 24 ......

48.1

49.2

49.5

57.0

52.3

50 7

54.8

16

17

17

20

16

10

17

1943 

Feb.8 

Feb. 26...-

Mar. 15 .

Apr. 16- 

May 15... __

 51.7

51.3

55 8

53 9

51.6 

54 5

50 4 

51.1

15

15

19

23

19 

16

16 

15

1943

July 4__ 

July 18 -

Aug. 21. .....

Sept. 6 - .

Sept. 21......

62.6

51.2

50 9 

50.7

50.7

17

15

14

15

16 

16

15

Biscayne Canal at Le Jeune Road

1942 

Oct, 7 

Nov. 9 

Nov. 24 ..

Dee. 10- 

Dec. 23.. 

1943

Jan. 24 

48.4

50.2

50-. 0

47.4

50.5

51 2

51.7

16

14

18

15

16

15

16

1943 

Feb.8 ..

Feb. 26 ..

Mar. 15- 

Apr. 16 

May5 

May 15-.--.

51.7

54.5

51 9

48.8

51.5 

51.5

50.5

« Q

14

14

15

16

15 

15

15 

15

1943

July 4 

July IS.......

Aug. 21 . 

Sept. 0 -.-.

Sept. 21 ..

54 9

49.4 

52.9

50.6

16

15

15

15

15 

17

15
10 QUALITY OF SURFACE WATERS, 1943

TIDAL CANALS IN AND NEAR MIAMI, FLA. Continued 

Biscayne Canal at Red Road

Date

1942 

Oct. 7 ..

Nov.9 

Nov. 24 

Dec. 23...;.

1943

Jan. 6 __ ...

Specific 

conductance (KXIO* 

at 25° C.)

46.1

47 5

48.2

46.0

48.2

49.8

Chloride 

(01, 

p. p. m.)

16

15

15

15

14

15

Date

1943 

Jan. 24 

Feb. 8.. 

Feb. 26... ..

Mar. 15 

Apr. 2... ...

Apr. 16.....

Specific 

conductance (KX105 

at 25° C.)

49.8

49.4

48.2

48.4

43.0

46 8

63.4

Chloride 

(CU 

p. p. m.)

14

14

16

13

15

14

14

Date

1943

July 4 

July 18 

Aug. 21 ...

Sept. 6... ....

Sept. 21... ...

Specific 

conductance (KX105 

at 25° C.)

55 6

53 1

65 9

59 9

58 2

Chloride 

(Cl, 

p. p. m.)

14

16

15

14

17

17

15

Little River Canal at U. S. Highway 1

1942

Nov. 9 ...

Nov. 24. .

Dec. 10.. 

Dec. 23.....

1943

Jan. 24......

4,150

3,530

4,210

4,360

3,950

4,240

4,700

15,350

12,800

15,750

16,550

14,600

15,650

17,270

1943

Feb. 26---..

Apr. 2......

Apr. 16.....

MavS......

May 15. ...

Tiino 1Q

4

AA(\

4,770

3,920

4,230

3,020

2,730

3,610

4,710

16,020

17,560

14,000

15,100

10,500

9,570

12,900

17,200

1943 

July 4........

July 18 -- 

Aug. 21......

Sept 6 - 

Sept, 21......

4,500

3,670

4,000

3,530

17,600

17,500

16,700

13,100

14,400

12,800

Little River Canal at Northeast Second Avenue

1942

Oct. 7 . 

Nov. 9 

Nov. 24 

Dec. 10.. 

Dec. 23.. 

1943

Jan. 24.. .

3,620

3,930

3,740

3,770

3,860

2,690

3,960

13,250

14,500

13,700

13,900

14,200

9,300

14,330

1943 

Feb. 8-._ 

Feb. 26.... .

Mar. 15.....

Apr. 2......

Apr. 16-... .

May 15. .

3,620

3,860

4,130

4,250

4,550 

3,140

4,260 

2,880

12,730

13,800

14,910

15,300

16,500 

11,000

15,700 

10,000

1943

July 4. ...

July IS... 

Aug. 21... ... 

Sept. 6-...___

Sept. 21. 

4,000

2,770

3,390 

291

2,446 '

14,300

8,880

7,560

9,670

12,000 

755

8,340

Little River Canal at Northwest Seventh Avenue

1942

Oct. 7. ...

Nov. 9 

Nov. 24 

Dec. 10- .

Dec. 23.....

1943

Jan. 6 ____

Jan. 24... ...

2,374

2,850

1,242

2,470

2,012

1,733

3,330

8,200

10, 100

3,920

8,750

6,800

5,650

11,810

1943 

Feb. 8 

Feb. 26_. 

Mar. 15.. 

Apr. 2 __.

Apr. 16 .. 

MayS 

288

3,130

2,770

3,180

3,060 

1.926

112

.730

10,890.

9,470

11,200

10,400 

6,420

7,510

182

1943

July 4 -

July 18 ..

Aug. 21...... 

Sept. 6.. ___

Sept. 21 

2,219

,2,250

850 

56 1

1,060

7,410

6,720

. 4,580

7,600

2,500 

41

3,300

Little River Canal at Northwest Ninety-fifth Street

1942 

Oct. 7. 

Nov. 9 ..

Nov. 24.....

Dec. 10.. 

Dec. 23.....

1943

Jan. 24......

275

2,330

55.6

1,110

138

87.3

2,378

720

8,050

29

3,520

285

119

8,190

1943 

Feb. 8.- 

Feb. 26----.

Mar. 15. .

Apr. 2--.-.

Apr. 16..... 

MayS......

May 15.... .

53.9

1,811

2,790

2,620

2,850 

1,163

1,173 

110

33

5,980

10,590

8,930

9,710 

3,650

3,700 

198

194S

July 4 . 

July 18 . 

Aug. 21...... 

Sept. 6.......

Sept. 21......

751

62.3

52.8 

51.3

52.4

2,220

58

45

37

25 

27

26
SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MEXICO 11

TIDAL CANALS IN AND NEAR MIAMI, FLA. Continued 

Little Rirer Canal at Northwest Twenty-seventh Avenue

Date

1942

Oct. 7......

Nov. 24.....

Dec. 10. i...

1943

Jan. 24... ...

Specific

conduct1 ance

(KX105

at 25° C.)

.

47.8

52.5

49 0

46.7

48.0

87. 0

Chloride

(Cl,

p. p. m.)

13

26

15

16

14

130

Date

1943

Feb. S.-.-.-

Feb. 26---..

Mar. 15.....

Apr. 2-..___

Apr. 16-----

May 15.---.

Specific

conductance

(KX105

at 25° C.)

47.5

48.9

323

1,278

330

67.2

57.2

49.2

Chloride

(Cl,

p. p. m.)

14

17

820

4,020

840

68

33

20

Date

1943

June 19. _ ..

July4_-._...

July IS... .-

Aug. 21......

Sept, 6- __ ,.

Sept. 21.... ..

Specific

conductance

(KXlOs

at 26° C.)

63.7

47.2

47.2

46 1

49 5

Chloride cci,

p. p. m.)

57

18

17

15

14

. 15

14

Little River Canal at Le Jeune Road

1&4S

Oct. 7. ...

Nov. 24.....

Dec. 10--.-.

Dec.23.. T ..

194%

Jan. 6.. __ .

Jan. 24..... .

47.8

52 0

50 9

49 1

49 5

50.3

51.3

15

16

18

17

17

17

19

1943 

Feb. 8__--.-

Feb. 26---..

Mar. 15-.---

Apr. 2-.- _

Apr. 16-----

Mayl5--._.

50.1

50 0

50.2

374

88.2

53 0

49.2

49.5

15

15

18

1,010

125

23

17

15

1943

July 4 .

July 18.......

Aug. 21 r __._.

Sept. 21......

48. 8

51.3

49.1

48.3

49 2

16

15

15

23

15

15

14

Little River Canal at Red Road

1942 

Oct. 7.......

Nov. 9 .

Nov. 24.....

Dec. 10.....

Dee. 23.....

1943 

Jan. 6 ___ .

Jan. 24......

60.0

U 0

54.0

53.7

49.5

54.8

58.5

16

16

16

17

18

17

17

1943 

Feb. 8-...-

Feb.26..-..

Mar. 15 .

Apr. 2... ...

Apr. 16.--. . 

May 5---...

May 15.-.-.

53.7

54.5

51.9

52.1

53.0

51.7

51.0

53.2

15

18

16

18

18 

16

13 

24

1943

July4-.._.._

July 18......

Aug. 21......

Sept. 21......

52.6

60.7

54.5 

53.6

53.9

18

15

14

16

13 

16

14

Tamiami Canal at Northwest South River Drive

1942 

Oct. 7... ....

Nov. 9 _

Nov. 24.....

Dec. 10-....

Dec. 23...-.

1943 

Jan. 6. ...... 

Jan. 23... _

40 2

94.8

46.7

531

619

S6.4 

887

15

159

20

1,500

1,800

132 

2,700

1943 

Feb. 8......

Feb. 26-_._-

Mar.l5..---

Apr. 2_---_-

Apr. 16--.-.

Mayl5-..._ 

June 1------

223

732

2,291

2,600

3,270 

826

490

682

525

5,380

7,750

8,830

11,300 

2,450

1,390 

1,970

1943

July 4.......

July 18.... .-

Aug. 21...... 

Sept. 6.......

Sept. 21......

2,338

716

265 

186

67.7

8,000

1,970

755

2,150

660 

425

74

Tamiami Canal at Le Jeune Road

1942 

Oct. 7.......

Nov. 9 ......

Nov. 24.....

Dec. 10. ....

Dec. 23.....

1943

Jan. 23......

41.0

46.4

45.4

91.6

88.5

52 0

282

 17

23

IS

147

138

34

740

1943 

Feb. 8__-.__

Feb. 26.....

Mar. 15- .

Apr. 2-.- ...

Apr. 16..... 

May 5 . .

May 15-....

72.7

107

1,341

1,709

2,680 

720

614

171

86

187

4,250

5,530

9,080 

2,125

1,780 

372

1943

July 4.......

July 18. 

Aug. 21...... 

Sept. 6.......

Sept 21 

1,567

130

119 

64 1

60.5

5,090

495

210

255

222 

63

53
12 QUALITY OF SURFACE WATERS, 1943

TIDAL CANALS IN AND NEAR MIAMI, FLA. -Continued 

Tamiami Canal at Red Road

Oct. 7 

Nov. 9 -.- 

Nov. 24 . 

Dee. 10.. 

Dee. 23. 

1943

Jan. 23 ...

39 8 

44 7 

45.0 

45.6 

45 9

47.1 

47.2

15 

18 

17 

16

17

18 

18

Feb. 8......

Feb. 26.--..

Mar. 15..... 

Apr. 2 _

Apr. 16....).

May 15 

48 1 

46 9 

46.0 

47.1 

54.4 

52 1 

48.7 

48.7

16 

16 

16 

17 

33 

29 

15 

16

June 19 _ _-

July 4 .

July IS......

Aug. 4... .

Aug. 21 

Sept. 6.. .....

Sept. 21. 

47.2

1 47.5 

49.0 

48.1 

46.8

17 

19 

17 

17 

IS 

19 

16

Coral Gables Canal at Ingraham Highway

1942 

Oct. 7 ....

Nov. 9 

Nov. 24 - 

Dec. 10- 

Dec. 23. 

1943 

Jan. 6 .......

Jan. 23 

4,200 

4,500 

4,210 

4,250 

3, 490

4,660 

4,860

15,300 

16,800 

15,350 

15, 750 

12,850

17,450 

18,180

1943

Feb. 26-....

Mar. 15 . 

Apr 2.......

Apr. 16.....

May 15.. 

4,430 

4,510 

4,940 

5,440 

5,220 

4,940 

5,160 

5,280

16,120 

16,500 

18,270 

17,200 

19,700 

18,400 

19,400 

19,800

1943

July 4. ......

July 18.. L

5,010 18,500 

19,500 

16,900

Coral Gables Canal at Hardee Road

1942 

Oct. 7 .

Nov. 9- . 

Nov. 24 - 

Dec. 10-.... 

Dec. 23 ..

1943 

Jan. 23 

3,940 

4,220 

3,770 

4,060 

3,640

4,700

14,350 

15,750 

13,550 

15,000 

13,400

17,410

1943 

Feb. 8.-.-.

Feb. 26... .- 

Mar. 15.--.. 

Apr. 2.-.. . 

Apr. 16----. 

May 5 __. . 

May 15. .

4,420 

4,770 

4,560 

4,200 

5,140 

4,240 

5,140

15,920 

17,460 

16,690 

15,200 

19,000 

15,600 

19,200

1943

June 19.. 

July 4. ......

July IS..-,..

Aug. 21 

Sept. 6 .--

Sept. 21... ...

4,610 

4,610

4,340 

4.610 

3,940 

2,610

16,900 

16,800 

6,860 

15,300 

.16.000 

16,900 

14,200 

9,080

Coral Gables Canal at U. S. Highway 1

194% 

Oct. 7 

Nov. 9. ..... 

Nov. 24 . 

Dec. 10 -. 

Dee. 23-..--

1943

1,862 

2,670 

136 

1,687 

1,355

6,100 

9,400 

255 5,600 

4,380

1943 

Feb.8___.-.

Feb. 26-.... 

Mar. 15 

Apr. 2......

Apr. 16.-... 

May 6...... 

May 15- .

707 

1,012 

1,706 

2,329 

3,140 

2,340 

854

2,075 

3,120 

5,580 

7,900 

10,800 

7,900 

2,600

1943 

June 19--- 

July 4 ......

July 18-.-.. -

Aug. 21__ 

Sept. 6 ....

Sept. 21 .

2,950

1,345 

2,860 

767 

461

10,200 

2,425 

935 

4,280 

9,810 

2,270 

1,280

Coral Gables Canal at Granada Boulevard

1942 

Oct. 7 ....

Nov. 9 . 

Dee. 10 ..

Dec. 23. 

1943 

Jan. 6. ......

Jan. 23. 

50.3

703 

92.4

73.2

255

997

17

2,100

138

111

680

3,100

1943 

Feb. S-.-.-

Feb. 26..... 

Mar. 15.....

Apr. 2-...-.

Apr. 16.. .-

May 5......

May 15-....

70.3

106

887

1,553

1,392

1,560 

340

83

199 

2,650

5,040

4,350

5,040 

915

1943

June 19 _ ... 

July 4.......

July 18 

Aug. 21. 

Sept. 6... ... .

Sept. 21 ___

903

2,235

678

1,509 

186

67.4

2,750

7,560 

700

370

2,000

4,900 

428

55
SOUTH ATLANTIC SLOPE AND EASTERN GULF OF MFXICO 13

TIDAL CANALS IN AND NEAR MIAMI, FLA. Continued 

Coral Gables Canal at Bird Road

' Date '

1942

Oct. 7_._ 

Nov.9... . _.

Nov. 24.. ...

Dec. 10'... ..

Dec. 23.. 

1943

Jan. 6 ___ .

Jan. 23......

Specific

conduct-

 ance

(KX108

at 25° C.)

45.0

48.0

55.8

48.2

48.2

'48.3

49.2

Chloride

(Cl,

p. p. m.)

14

16

17

15

15

17

17

Date

1943

Feb. 8--. 

Feb. 26.. 

Apr.2-.-ju

May5 ...

Mavl5._-._

Specific

conductance

(KX105

at 25° C.)

47.5

46.5

48.4

883

1,054

891

61.4

74.9

Chloride

(Cl,

p. p. m.)

16

16

23

2,700

3,250

2,720

56

93

Date

1943

July 4.---.-

July 18.---

Aug.4 

Aug. 21 

Sept. 6 

Sept. 21 

Spe-nfic

conductance

(KyiO6

at 25" C.)

1.2-26

62 2

577

52 0

49.8

Chloride

(Cl,

p. p. m.)

3,880

145

17

58

1,630

22

37

Coral Gables Canal at Red Road

194$ 

Oct. 7- ..

Nov. 9......

Nov. 24,-. _

Dec. 10.-...

Dec. 23.....

1943

Jan. 6.......

Jan. 23... _

46.1

45.2

55.5

1 48.2

47.8

48.3

47.3

16

15

15

13

15

15

14

1943 

Feb. 8----,.

Feb. 26-__.

Mar. 15 

Apr. 2_..._.

Apr. 16.. 

May5 .

47.0

46 4

45.1

38 4

38.0

39.1

40 4

47.0

14

14

14

15

15

16

15

14

1943 

June 19. ___

July 4... 

July 18..--

Au?. 21. .-

Sept. 6 ....

Sept. 21 .

46.6

49 53". 0~1

47.0

52.5

21

14

14

13

18

13

14

Snapper Creek Canal at In graham Highway

1942 

Oct. 7 . ...

Nov. 9 .

Nov. 24.....

De-. 10- 

Dec. 23 .. .

1943

Jan. 23 ......

2,990

4,300

330

514 

505

4,150

4,510

10,550

15,950

880

1,450 

1,430

15, 100

16,550

1943 

Feb. 8.. 

Feb. 26_: .

Mar. 15 .

Apr. 2..._._ 

Apr. 16 . 

May5.__ 

Mav 15._-_

395

521

4,540

4,140 

, 5,340 

4,930 

1,451

1,050

1,460

15,680

15,000 

2(5,000 

18,700 

4,680

1943

July 4.... 

5,370 .

4,720

19,700

17,500

9,270

Snapper Creek Canal at North Kendal Drive and Red Road

1948 

Oct. 7.. 

Nov. 9. .....

Nov. 24-,...

Dec. 10..... 

Dec. 23...-

1943 

Jan. 6 ....

52 3

56.9 

48.8

46.7 

47.5

49.1

14

15

15

15 

15

13

1943 

Jan. 23-. 

Feb. 8--- 

Feb. 26 .-

Mar. 15 

Apr. 2 - 

Apr. 16--.

49.2

47.5 

47.6

59 6 

46 4

47 8

14

14 

14

17 

16

17

1943 

May 5.. ..

May 15 

June 19-. .... 

July 4-.. 

44.6

49.5 

64.5

46.8

17

14 

16

16 

15

Snapper Creek Canal at U. S. Highway 1

1942

Oct. 7 ....

Nov. 9......

Nov. 24-...

Dec. 10.....

Dec. 23... ..

1943

Jan. 6 ......

44.8

48.2

49.0

46.5

47.2

47.0

14

' 15

14

13

14

14

1943

Feb. 8-.-._.

Feb. 26.__._

Mar. 15--.

Apr. 16__-__

47.5

46 0

47.1

50.7

43.3

44 6

14

12

12

15

13

13

1943

May 15- 

June 19 _ -

July 4-.-..-

39.1

50.4

48.1

51.2

12

14

13

16

15

Snapper Creek Canal at Palmetto Drive

194% 

Oct. 1. .......

Nov.9... 

Nov. 24.... .

Dec. 10.--, 

Dec. 23-..-

1943 

Jan. 6... ....

44.8

48.0 

47.4

46.8 

46.8

46.6

13

16 

13

14

14

12

1943

Feb. S.-.- 

Feb. 26.....

Mar 15- 

Apr. 16.-..

46.7

46.6 

47.1

53.7 

43.5

45.9

12

13 

11

13 

12

15

1943

May 15.- 

June 16-- -- 

July 4--- 

41.3

55,0

47,7

44 '.2

13

14 

14

14

14
CONASAUGA RIVER AT TILTON, GA.

LOCATION. At gaging station 250 feet downstream from county bridge, a quarter of a mile dow

of Tilton, and 12 miles upstream from confluence with Coosawattee River. 

DEAINAGE AEEA. 682 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1942 to September 1943.

Water temperatures: October 1942 to September 1943. 

EXTREMES. Dissolved solids: Maximum, 91 parts per million Sept. 1-20; minimum, 45 parts 

Total hardness: Maximum, 82 parts per million Sept. 11-20; minimum, 34 parts per million 

Water temperatures: Maximum, 89°F. Aug. 31; minimum, 36°F. Feb. 17.

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 1943 

Date 

of collection

Oct. 1-10, 1942.... .....

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

Oct. 21-31... .

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

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

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

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

Dec. 11-20............

Dec. 21-31.......

Jan. 1-10, 1943.........

Jan. 11-20.............

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

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

Feb. 11-19... ..........

Feb. 20-28.............

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

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

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

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

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

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

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

May 11-20...... _______

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

Mean 

discharge 

(secondfeet)

/

95.6 

116 

213 

175 

137 

366

468 

341 

-895 

1,329 

386 

954

1,755 

3,044 

1,913 

2,026 

2,344 

2; 913

768 

550 

357 

611 

308 

619

Suspended 

matter

20 

9 

16 

9

8 

12

117 

16 

82 

22 

174 

66

54 

26 

11 

5 

115 

52

15 

45

30 

18 

66

77

Oxygen consumed

TJnfiltered

1.4 

2.4 

2.9

2.7 

2.8 

3.0

6.0 

2.8 

5.0 

2.1 

4.5 

3.1

3.1 

1.7 

1.2 

2.1

4.8 

' 3.6

1.9 

3.1 

3.0 

2.4 

3.3 

3.5

Fil-' 

tered

1.0 

2.4 

2 6 

1.9 

1.8 

1.9

3.8 

2.0 

3.0 

1.4 

1.4 

1.8

1.6 

1.2 

.8 

2.1 

3.3 

2.3

1.5 

- 2.3 

2.3 

2.4 

2.4 

3.3

Color

10 

12 

8 

9 

10 

11

21 

10 

15 

6 

5 

6

7 

6 

8 

5 

> I* 

8

7 

11 

15 

7 

7 

11

Silica

(Si02>

6.1 

8.9 

8.1 

8.4 

7.9 

6.1

5.9 

6.8 

4.9 

6.9 

6.8 

6.7

8.3 

7.0 

6.9

8.6

5.8 

5.8

6.7 

6.6 

7.3 

6.7 

6.7 

8.5

Iron

(Fe)

0.06 

.03 

.04 

.07 

.07 

.05

.01 

.05 

.03 

.03 

.01 

.03

\02 

.05 

.07 

.03 

.01 

.03

.04 

.06 

.14 

.04 

.02 

.02

Calcium 

(Ca)

14 

17 - 

17 

16 

18 

19

9.4 

15 

13 

12 

14 

11

11 

14 

16 

18 

10 

9.7

15 

15 

12 

16 

16 

16

Magnesium 

(Mg)

4.2 

5.5 

5.1 

5.1 

5.4 

5.5

2.6 

4.0 

3.2 

3.1 

3.6 

2.8

2.8 

3.5 

4.3 

4.8 

2.6 

2.5

4.1 

3.9 

3.1 

4.4 

4.2 

4.5

Sodium

(Na)

2.5 

3.9 

3.3 

3.4 

3.3 

3.9

2.2 

2.4 

2.0 

1.9 

2.1 

1.9

2.2 

1.7 

2.0 

2 7 

2.1 

1.8

2.2 

2.4 

2.0 

2.6 

2.2 

2.7

Potas

sium 

(K)

s 1.

1.

1.

1 

1.

1.

1.

.

1.

1.

1.

.

.

.

.

.

.

.

.

1.

.

.

.

.
Junel-lfl . ......

June 11-20 _______

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

July 14-20... ..........

July 21-31.... ........

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

Aug. 11-20... 

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

Sept. 1-10 ,. 

Sept. 11-20. _

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

559

920

329

688

517

254

817

951

2,324

502

352

438

1,231

34

74

92

140

141

290

142

04

16

10

21

51

66

2.6

2.7

2.6

3.4

3.6

6.7

4.0

3.5

2.0

2.2

2.4

4 0

3.1

1.8

3.9

2.4

2.4

2.4

2.4

2.5

2.6

1.6

2.4

2.0

2.8

2.2

8

6

7

7

6

8

6

7

7

a

« 

12

9

8.6

8.9

8.3

6.6

7.2

6.1

7.2

7.8

7.5

6.8

5.8

6.8

7.1

.03

.01

.02

.02

.02

.01

.05

.05

03

.05

04

0.04

18

16

17

17

14

11

14

15

20

20

21

11

15

5.5

5.0

5.6

3.9

4.3

3.5

4.2

4.7

6.6

6.9

7 3

4.0

4.3

3.1

3.0

 3.5

2.6

2.8

2.6

2.9

2.8

3.4

3.5

3 7

1 0

2.6

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1942.........

Oct. 11-20 

Oct. 21-31...

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

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

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

Dee. 1-10..............

Dec. 11-20...... . . .

Dec. 21-31...... ......

Jan. 1-10, 1943.........

Jan. 11-20.............

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

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

Feb. 11-19 ..

Feb. 20-28 ..........

Mar. 1-10 . ....

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

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

Apr. 1-10 

Apr..ll-20 ... ......

Anr. 31-Sn.....

^ay 1-10 . 

May 11-20 

May 21-31. .. 

95.6

116

213

175

137

366

468

341

995

1,329

386

954

1,755

3,044

1,913

2,026

2,344

2,913

768

550

3S7

611

308

619

0.699

.848

.848

.799

.898

.948

.469

.749

.649

.599

.699

.549

.549

.699

.799

.898

.499

.484

.749

.749

.599

.;»9

79Q

.799

0.345

.452

.419

.419

.444

.452

.214

.329

.263

.255

.296

.230

.230

.288

.354

.395

.214

.206

.337

.321

.265

.362

.345

.370

0.109

.170

.144

.148

.144

. .170

.096

.104

.087

.083

.091

.083

.096

.074

.087

.117

.091

.078

.096

.104

.087

.113

.096

.117

0.02

.03

.03

.02

.02

.02

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.0:

.02

.02
CONASAUGA RIVER AT TILTON, GA. Continue

Chemical ^analyses, in equivalents per million, water year October 1942 to S

Date 

of collection

June 11-20 .. 

June 21-30 ..........

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

July 11-20 .- -

July 21-31 ..........

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

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

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

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

Sept. 11-20...... ......

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

Mean 

discharge 

(secondfeet)

559 

920 

329 

688 

517 

254

817 

951 

2,324

502

352 

43&

1,231

Suspended 

matter

Oxygen consumed

UnfilteredFiltered

Color

Silica 

(Sift)

Iron

(Fe)

Calcium 

(Ca)

0.898 

.799 

.848 

.848 

.699 

.549

.699 

.749 

.998 

.998 

1.048 

.549

0.746

Magnesium

(Mg)

0.452 

.411 

461 

.321 

.354 

.288

.345 

.387 

.543 

.567 

.(KM) 

.329

0.357

Sodium

(Na)

0 135 

.130 

.152 

.113 

.122 

.113

.126 

.122 

.148 

.152 

.161 

.083

0.115

Pota

sium 

(K)

0.02

.02

.02

.03

.03

.03

.03

.03

.03

.03

.03

.03

0.02
CONASAUGA RIVER AT TILTON, GA. Continu

Temperature (°F.) of ivater of Conasauga River, ivater year October 

Day

1... ....... ..... .-..-..-

2....;.... ...... ............

3...........................

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

5......... ..................

6...........................

7...........................

8.................. .........

9...... ...........-......

10........... ...............

11......... ........... ..

12..........................

13..........................

14.. _._.._....._...._...._.

15..........................

16.......... ................

17..........................

18.. ........................

19.. ...................... ..

20............... ...........

21..........................

22..........................

23

24..........................

25..........................

26......... .................

27........... ..............

28............ ....... .......

29..........................

30.....................:....

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

October

58

58

61

64

66

64

62

61-

60'

61

63

64

63

61

62

63

 62

62

61

62

61

62

61

59

61

60

56

52

54

53

58

60

November

51

53

53

51

51

51

53

56

56

60

54

50

AQ

48

47

' 48

40

52

54

54

51

57

58

55

51

52

47

44

44

51

December

45

46

" 44

40

40

43

44

M

45

45

45

42

42

40

43

42

39

39

39

39

38

39

39

41

43

46

50

54

56

55

52

44

January

48

46

47

48

45

41

41

41

41

42

41

40

40

39

44

49

55

52

47

42

46

^n

50

52

49

45

46

45

46

45

February

48

46

46

48

50

53

51

48

49

51

51

48

46

41

38

37

36

38

41

43

46

49

51

53

48

51

45

45

46

March

 ' 47

47

42

39

42

45

42

41

41

44

47

50

50

55

50

55

54

51

53

56

52

47'

48

48

40

51

54

52

54

50

54

49

April

57

58

56

.53

55

54

56

57

60

60

61

62

61

57

52

51

55

50

56

5fi

54

55

55

56

56

58

63

64

65

66

58
MISCELLANEOUS STREAMS IN GEORGIA

Chemical analyses, in- parts per million

Source

Beach Creek at Louise ......... ..

Big Indian Creek near Madison . ..... 

Big Creek near Louisville. --- __ . .-.--

Brier Creek near Keysville -

 Coldwater Creek near Ruckersville ...

Cotton Indian Creek near Stockbridge ..-...-

Echeconnee Creek near CuDoden . .--.

Falling Creek near Gray .... - 

Fishjng Creek near Metasville.. ....

Date of 

collection

Oct. 31, 1942.......

 .do .

.....do... .......

Oct. 12. ...........

Oct. 28 __ -.--. 

Oct. 29 ... ... ..

Oct. 28 ... ... .... 

Oct. 10 

-- do..... -

Oct. 13... ..... . 

Oct. 9 ....... ....

Oct. 30 ..... ...

Oct. 8 .. ... 

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

Oct. 28 ..... .... 

Nov. 13.. ..........

Oct. 30 --------- 

Oct. 20 .........

Nov. 3. ..... .....

Oct. 15 

Oct. 28 ... .

Nov. 13 ... ..

Oct. 7 ... ....

Oct. 14 ....... .-

Oct. 15 ........

Oct. 22..... ____ .

Nov. 4... "... ...

Oct. 31 ...... . ..

Oct. 9 .... . 

Nov. 1

Oct. 20... .

Oct. 8 .... .... ...

Nov. 1 .. .... 

Discharge 

(secondfeet)

71.2

41.1

11.6

11.6

29.5 

31.3

11.6 

36.3 

2.26

17.8 

2.62

42.4 

31.4

6.47

40.6 

13.2

6.95 

3.86

25.3

6.50

9 43

42.8

25.0

34.6

4.24

4.37

3.72

6 75

5 81

fi,64

12.2

.78

3.55

3.18

34.8

Color

5

17

5

7

3 

1

17 

8 

12

25 

0

2 

18

8

0 

5

0

8

8

8

16 

5

3

4

2

7

8

14

3

t>

16

4

8

5

6

Silica 

(SiOs)

12

13

16

9.7

16 

14

17 

12 

12

G.4 

9.1

12 

12

20

17 

16

15 

12

21

20

31 

12

15

11

21

32 .

31

21

23

14

13

20

31

26

19

Iron 

(Fe)

0.02

.16

.02

.06

.01 

.04

.18 

.02 

.15

.25 

.02

02 

.31

.11

.09 

.06

.07 

.08

.03

.09

.16 

.15

.01

.16

.01

.04

.02

.18

.06

.<V7

.26

.02

.02

.02

.08

Calcium 

(Ca)

3.0

2.9

5.0

2.0

3.6 

3.4

3.9 

4.6 

2.4

1.0 

27

2.4 

3 2

6.1

3,9 

2.3

2 4 

2.8

5.2

9.3

7.4 

2.6

3.4

2.8

4.7

5.4

8.0

4.8

6.8

3.5

5.6

4.4

7.6

4.9

4.0

Magn

sium 

(Mg

1

1

2

1

1

1

1

1

1

10

1

1

2

1

1

1

1

3

4

3 

1

1

1

1

2

3

2

3

I

1

2

3

2

1
Little Haynes Creek near Walnut Grove _ .

Spirit Creek near Hephzibah .. ___ .......

Oct. 22, 1942.......

Oct. 12.............

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

Oct. 29.............

Oct. 28 _ ....... ... 

Oct. 20 ..........

Oct. 13... _ .......

Oct. 23. .. . ......

Get. 22...._ _.

Nov. 2... . 

Oct. 23.............

Oct. 29...... ...... .

Nov. 2... ...... ....

Oct. 20 _ ..........

Nov. 1.. .......... .

Oct. 7.. .......... ..

Nov. 2.............

Oct. 20.... ...

Oet.29,. . .

Nov. 4.. ...........

Oct. 14.............

Oct. 13 . 

Oct. 28. ..

Oct. IS . . .

Oct. 29.............

Oct. 13............. 

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

.....do .....

Oct. 28 .---... ....

Oct. 29... _ .---.-.

Nov. 1_ 

Oct. 31-... 

Oct. 29...... .......

Oct. 14..... .... ....

Oct. 29.............

2,05

12.1

5.87

3.89

18.7

8.47

1.29

32.9

9.16

52.4

9.97

81.1

4.39

7.29

2.93

2.58

9.70

16.3

40.8

7.69

6.22

17 8

16.9

2.22

21.9

48.0 

5.90

10.9

62.5

30.6

1.18

9.59

.97

5.49

15.3

13

2913

1, 

105

116

2499

10

108

' 78

1013

171

1057

12 

10

13

112991

155

23

13

13

16

14 

25

21

15

15

21

15

13

24

14

26

24

28

16

13

20

20

11

14

27

12

6.9 

11

15

12

11

27

14

18

19

13

0.07

.35

.01

.02

.03 

.13

.02

.11

.03

.31

.15

.08

.12

.12

.01

.02

.02

.15

.02

.02

.22

.03

.21

.02

.25

.04 

.21

.35

.05

.12

.03

.10

.02

.20

.14

5.2

3.7

2.3

2.2

2.6 

3.4

2.7

3.4

2.6

6.0

3.8

4.6

5.1

3.8

5.6

7.2

7.4

3.2

3.4

5.1

3.6

2.3

3.4

9.0

2.4

2.6 

3.5

2.7

3.0

2.6

7.1

3.9

3.9

5.2

, 3.8

-2

2

2

2

3

3

1

2

4
MISCELLANEOUS STREAMS IN GEORGIA Contin

Chemical analyses, in equivalents per million

Source

Apalachee River near Campton __ ._-----_---.

Brushy Creek near Wrens. ___ ..--.-.......--

Commissioners Creek near Mclntyre __ .--._.--

Commissioners Creek near Gray _ .-.-..--...-

Eoheconnee Creek near Culloden __ ' _ __.___.-

Kettle Creek near Washington __ *. __ ........

Date of 

collection

Oct. 31, 1942........

.... do.... ....... ..

 . do.... 

Oct. 12.............

Oct. 28 ..........

Oct. 29- ..........

Oct. 28..... .....

Oct. 10 ..

.....do..... ........

Oct. 13... _. ....... .

Oct. 9. .. ....... .

Oct. 30 ... ....

Oct. 8 ...... ....

Nov. 3 ...........

Oct. 28. .........

Nov. 13.. ......... .

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

Oct. 20.. ........

Oct. 30 

Nov. 3 ....

-Oct. 15..... .....

Oct. 30 .... _ ...

Oct. 28... ....... ...

Nov. 13 ...... .

Oct. 7 . 

Oct. 14.............

Oct. 15 . _ .. ....

Oct. 22.......... _

.Nov. 4.. ..........

Oct. 31... __ ... _

Oct. 9 .. _ . _ 

Nov. 1 ............

Oct. 20 ......

Oct. 8 ...........

Nov. 1 . -...

Discharge 

(secondfeet)

71.2

41.1

11.6

11.6

29.5

31.3

11.6

36.3

2 26

17. S

2 62

42.4

31.4

6.47

40.6

13.2

6.95

3.86

25.3

6.50

9.43

42.8

25.0

34.6

4.24

4.37

3.72

6.75

5.81

6.64

12.2

.78

3.55

3.18

34.8

Color

Silica 

(SiOj)

Iron 

(Fe)

Calcium 

(Ca)

0.150

.145

.250

.100

isn

.170

.195

.230

.120

.050

.120

.160

.304

.195

.115

.120

.140

.260

.464

.369

.170

.140

.270

.399

.240

.339

.125

.280

.220

.379

94 1

.200

Magn

sium 

(Mg

0.12

.1

.20

.08

.12

.10

.14

.0

.08

.04

.82

.08

.11

.23

.14

no

.11

.11

.24

.38

.27

.11

.14

.12

.15

.20

3f

16

.25

.11

.09

1Q

.25

1C

.14
Oct. 22, 1942........

Oct. 12.............

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

Oct. 29.... .........

Oct. 28..... ....... .

J3ct. 20.............

Oct. 13.............

Oct. 23.............

Oct. 22.............

Nov. 2.............

Oct. 23....... ......

Oct. 29 ._. -

Nov. 2.............

Oct. 20.. . ..........

Nov. 1 ............

Oct. 7..... ------

Nov. 2.. ...........

Oct. 20 .......

Oct. 29.... .:__ 

Oct. 14.. ... ....

Oct. 13 ..........

Oct. 28 ....... ..

Oct. 15 .... .....

Oct. 29 ........ -

Oct. 13.-. 

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

.- do... ..........

Oct. 28.. ..... ...

Oct. 29 .......

Nov. 1 .-...--, 

Oct. 31. .....

Oct. 29 ........ ..

Oct. 14 ..........

Oct. 29 .........

2 05

12.1

5.87

3.89

18 7

8.47

1.29

32.9

9.16

52.4

9.97

81.1

4.39

7.29

2.93

2.58

9.70

16.3

40.8

7.69

6.22

17.8

16,9

2.22

21.9

48.0

5,90

10.9

62.5

30.6

1.18

9 59

.97

5.49

15,3

0.240

.185

.115

.110

.130

.170

.135

 .170

.130

.299

.190

.230

.255

.190

.280

.359

.369

.160

.170

.255

.180

.115

.170

449

.120

.130

.175

.135

150

.130

.354

.195

.195

.260

ion

0.1

.

.0

.0

.0

.1

.

.1

.0

.2

.1

.1

.

.

.2

.2

.2

.1

.1

.1

.

.0

.1

.3

.

.0

.

.

.

.0

.3

.

.

.2

.
LOWER MISSISSIPPI RIVER BASI

CANADIAN RIVER NEAR SANCHEZ, N. MEX.

LOCATION. At Sabinoso, N. Mex., about 5 miles upstream from gaging station, which is at 

Lagartija Creek, 3 miles northeast of Sanchez, 10 miles downstream from Mora River, and 

DKAINAGE ABE A 6,000 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1940 to September 1943.

EXTREMES, 1942-43. Dissolved solids: Maximum, 2,324 parts per million June 10-11; mini

Total hardness: Maximum, 1,256 parts per million June 10-11; minimum, 236 parts per m

EXTREMES, 1940-43. Dissolved solids: Maximum, that of June 10-11, 1943; minimum, 264 

Total hardness: Maximum, that of June 10-11, 1943; minimum, 104 parts per million Sep

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194% 

Date of collection

Oct. 1-10, 1942 

Oct. 11-17, 19-20. .-

Oct. 21, 29-31 ... .

Oct. 23-28 .

Nov. 1-10 

Nov. 11-20 

Nov. 21-30 

Dee. 1-10 

Dec. 11-15 

Jan. 31-Feb. 10, 1943 

Feb. 11-19 I 

Feb. 20-28 ....

Mw. 1-lfl. ...... 

Mar. 11-20 

Mar. 21-31 

Apr. I-IO 

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

Apr. 21-24 ............

Apr. 25-30 _ . ___ ...

Mean 

discharge 

(secondfeet)

311 

880 

3,750 

615 

547 

335 

310 

241

200 

176 

198 

155 

144

I3fi 

141 

100 

69 

67 

61 

43

Specific 

conductance 

(KXW 

at 

25° C.)

129 

118 . 

63.9 

111 

110 

124 

132 

141

141 

143 

149 

153 

155

tfil 

167 

182 

192 

206 

211 

228

Silica 

(Si02)

10 

10

13

17 

16 

14

14 

14 

12 

10 

12

11 

13 

10 

10 

11 

8.6, 

9.5

Iron 

(Fe)

0.07 

.05

.05

.07 

.04 

.03

.04 

.06 

.08 

.08 

.08

.08 

.15 

.08 

.08 

.08 

.08 

.08

Galcium 

(Ca)

112 

104 

65 

107 

101 

119 

130 

128

130 

138 

141 

142 

139

147 

150 

158 

1«0 

172 

176 

193

Magnesium 

(Mg)

57 

51 

18 

52

48 

55 

61 

66

66 

65 

71 

73 

73

77 

82 

91 

96 

105 

106 

116

Sodium

(Na>

Potassium 

(K)

108 

93 

54 

77 

80 

81 

92 

112

108 

118 

114 

121 

128

129 

134 

151 

168 

184 

193 

192

Bicarbonate 

(HCOa)

175 

165 

125 

197 

203 

210 

218 

210

212 

222 

234 

222 

209

219 

210 

197 

172 

170 

161 

162

Sulfate 

(SO,)

541 

482 

223 

436 

409 

469 

537 

593

588 

612 

628 

660 

678

705 

746 

843 

919 

1,009 

1,048 

1,121

Chloride 

(CD

28 

24 

14 

21 

20 

26 

26 

30

31 

33 

29 

30 

31

33 

35 

38 

42 

48 

49 

52

Fl

ri

(F

0
May 1-10. .-- 

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

May 21-31 _

June 12-20 

July 1-5 . .

July 6-10-. .............

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

July 21-31 .............

Aug. 1-10 

Aug. 11-17... ... ...........

Aug. 18-20.. ...... ......

Aug. 21-27, 29-31 

Aug. 28... . ..

Sept. 11-20- . .. __ .

Sept. 21-30 ... _ 

35

57

170

50

153

26

16

194

161

35

20

73

1,212

233

643

76

26

20

235

161

199

166

288

136

165

193

204

156

135

179

246

88.5

108

204

127

147

189

11

13

12

14

11

14

13

13

12

12

10

18

13

13

15

26

08

.05

.10

.05

.05

.12

.08

.2

-.03

.04

.04

1.0

.08

.03

.01

.02

202

142

163

139

251

116

144

169

135

118

152

216

84

104

196

120

136

163

117

74

100

80

153

61

76

91

69

58

81

120

33

42

93

52

66

87

205

131

171

135

256

107

135

162

"" "129' "

108

147

220

66

82

179

95

121

158

171

189

175

191

178

173

' 186

151

151

150

153

156

143

165

161

168

178

175

174

 1.161

705

950

728

1,506

563

726

919

704

576

806

1,258

318

432

1,018

512

654

- 865

57

37

39

38

69

31

40

46

44

31

29

45

58

15

18

45

27

34

45

1 Includes discharge for July 6-10.

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1942 ..........

Oct. 11-17, 19-20.. ....

Oct 18

-Oct. 21, 29-31 -

Oct. 23-28 . 

Nov. 1-10 

Noq. 11-20 

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

Dec 1 10

Dec. 11-15 

Jan. 31-Feb. 10, 1943 

Fev. 11-19 

Feb. 20^-28 ..........

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

M»t. H-20__ <__.___......

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

Apr. 1-10 --- .

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

Apr. 21-24. ..... .......

Apr. 25-30 . --

311

880

3,750

615

547

335

310

241

200

176

198

155

144

136

141

100

69

67

61

43

5.59

5.19

3.24

5.34

5.04

5.94

6.49

6.39

649

6.89

7.04

7.09

6.94

7.34

7.49

7.89

7.99

8.58

8.78

9.63

4.69

4.19

1.48

4.28

3.95

4.52

5.02

5.43

5.43

5.35

5.84

6.00

6.00

6.33

6.74

7.48

7.89

8.63

8.72

9.54

4.68

4.06

2.36

3.34

3.47

3.53

4.02

4.87

4.71

5.12

4.94

5.24

5.57

5.63

5.81

6.56

7.31

7.98

8.37

8.35

2.87

2.70

2.05

3.23

3.33

3,44

3.57

3.44

3.47

3.64

3.84

3.64

3.43

3.59

3.44

3.23

2.82

2.79

2.64

2.66

11.26

10.03

4.64

9.08

8.52

9.76

11. IS

12.35

12.24

12.74

13.07

13.74

14.12

14.68

15.53

17.55

19.13

21.01

21.82

23.34

0.79

.68

.39

.59

.56

.73

.73

.85

.87

.93

.82

.85

.87

.93

.99

1.07

1.18

1.35

1.38

1.47

0

.
CANADIAN RIVER NEAR SANCHEZ, N. M EX. Conti

Chemical analyses, in equivalents per million, water year October 194® t° 

Date of collection

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

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

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

June 21-30 ..............

July 1-5..1..... ...........

July 6-10. -- -.- ._

Jhly 11-20.. ............

July 21-31................

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

Aug. 11-17 ...........

Aug. 18-20 ............

Aug. 21-27, 29-31 ......

Aug. 28.... .............

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

Sept. 11-20... .............

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

Mean 

discharge 

(secondfeet)

35 

57 

170 

50 

153 

26 

16

194

161 

35 

20 

73 

1,212

233 

643

76 

26 

20

Specific 

conductance 

(KX10* 

at 

25° C.)

Silica 

(SiOj)

Iron 

(Fe)

-

Calcium 

(Ca)

10.08 

7.09 

8.14 

6.94 

12.53 

5.79 

7.19

8.44

6.74 

5.89 

7.59 

10.78 

4 19 

5.19 

9.78

5.99 

6.79 

8.14

Magnesium 

(Mg)

962 

6 09 

8.22 

6.58 

12.58 

5.02 

6.25

7.48

5.67 

4.77 

6.66 

9.87 

2.71 

3.45 

7.65

4.28 

5.43 

7.15

Sodium 

(Na)

Potassium 

(K)

8.93 

5.71 

7.44 

5.89 

11.14 

4.67 

5.88

7.03

5.63 

4.70 

6.39 

9.56 

2.86 

3.55 

7.78

4.14 

5.27 

6.89

Bicarbonate 

(HCOs)

2.80 

3.10 

2.87 

3.13 

2.92 

2.84 

3.05

2.48 

2 48 

2.46 

2 51 

2 56 

2.34 

2.70 

2.64 

2.75

2.92 

2.87 

2.85

Sulfate 

(SOO

24.17 

14.68 

19.78 

15.16 

31.35 

11.72 

15.11

19.13

14.66 

11.99 

16.78 

26.19 

6.62 

8.99 

21.19

10.66 

13.62 

18.01

Chloride 

(Cl)

1.61 

1 04 

1.10 

1.07 

1.95 

.87 

1.13

1.30 

1,24

.87 

.82 

1.27 

1.64 

.42 

.51 

1.27

.76 

.96 

1.27

Flu

rid

(F

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

'Includes discharge for July 6-10.
LOWER MISSISSIPPI RIVER BASIN 25

CONCHAS RIVER NEAR VARIADERO, N. MEX.

[Composites of daily samples collected at the Quintana Ranch approximately 4 miles rpstream from 

the gaging station, which is located OQ Highway 104 at Variadero, approximately 14 miles west of 

Conchas Dam. Samples are obtained at this point only when rainfall is sufficient to cause the river 

to flow. Analyses in parts per million]

Date of collection *

June 8-10, 1943-, ..

July 2-4 

July 12-10, 18-19. .........

July 24-25. ..-... .......

Specific

conductance

(KXIO*

at 25° C.)

163

89.5

61.1

46.3

Calcium

(Ca)

89

54

49

46

Magnesium

(Mg)

51

29

19

13

Sodium

and potasdu'm

(Na+K)

213

102

55

34

Bicarbonate

(HCOs)

241

223

181

175

Sulfate

(SQi)

542

 225

133

77

Ohioride

(CD

92

41

23

13

Disfflved

solids

1,108

562

370

271

Total

hardness

as

CaCOs

432

254

200

168

RESERVOIR BEHIND CONCHAS DAM, N. MEX.

Chemical analyses, in parts per million 

Monthly composite samples

Date of collection

Oct. 7, 1942-.. ............

Oct. 30 .-..-....-..-.-.

Nov. 6, 13, 19, 26..........

Dee. 10,26,31 .. __ 

Jan. 14, 22, 28,1943 

Feb. 3, 12, 18, 26. 

Mar. 12, 20, 27..... ....... .

Apr. 1,9, 24........... .

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

MayS.. 

May2S. -

June 18, 24.. ...... 

3\Ay 3,8. ........ .........

July 15, 23, 31.. ......

Aus.5, 12,19-- 

Sept. 2, 10, 16, 23, SO. -.

Oct. 1, 1942. .... .

Nov. 13, 19, 26 

Dec. 10, 25, 31- ........

Jan. 14, 22, 1943. .. ........

Jan. 28 ,. -.--

Feb. 4, 12.18,26 .

Mar. 12, 20 ..... 

Apr. 1, 9, 24--.: ...... .

May 21. ..................

May 28..-. .... 

July 3, 8.. -. .- 

July 15, 23, 31. ....... .

Aug. 5,12, 19,2fl - . ..

Sept. 2, 10, 16, 23, 30 

Oct. 7, 1942. ...._ 

Oet. 30 ..... ..... .......

Nov. 6,13,19,26... ..

Dec. 10, 25. ....... ---

Jan. 14, 22, 28, 1943..--..

Feb. 3, 7, 12, 18, 26.-.--.-

Mar. 12, 20, 27... ....... ...

Apr. 1, 9, 24. .... .... ...

Apr. 29.. .................

May 21.... -.. .:

M»y 2?.. .................

Jab 3,8. .................

July 16, 23, 31 ._

Aug. 5, 12, 19, 26 .......

Sept. 2, 10, 16,23, 30 ...

Sampling 

 point

Station 1 »._. .

[stations' 

Depth (feet)

r

Specific conduct- (KXIO 5 at ance

C.) 25° 

61.2

65.1

67.0

69 1

73.4

78.2

81.7

81.5

78 4

80 8

85.5

86.3

87 2

87 a

88.2

89.3

60.9

64.5

68.4

69.3

73.8

64.5

78.1

80.2

81 7

si a

84.5

84.5

86.3

86.7

87.0

88.5

89.6

62.1

68.5

71.8

72.8

75.6

76 2

Oft K

81.2

79.7

81.3

84.8

85.3

85.1

87.5

86.0

89.6

91.7

a O

69

72

70

71

IM>!

72

"M

S

1 

a

29

31

29

30

28

30

&

*? 

1|

II "S'oS

59

60

60

61

65

64*

Bi carbonate 

(HCOs)

138

132

148

153

165

158

155

165

160

172

168

159

155

156

133

136

162

151

154

165

158

169

169

170

166

159

154

156

L38

143

161

164

156

160

165

168

169

165

158

153

157

Sulfate (SOd

186

265

274

187

265

274

i

254

270

Chloride (CD

H

15

1«

17

18

12

14

16

16

?3

20

20

18

18

1

 *? 

1

511

531

515

529

50ft

536

%

 8

&J3 CI)

15

H

201

307

f

294

300

.270

qn^l

See footnotes at end of 'table.
26 QUALITY OF SURFACE WATERS, 1943

RESERVOIR BEHIND CONCHAS DAM, N. MEX. Continued

Chemical analyses, in parts per million Continued 

Samples from different depths

Date of collection

Dec. 17, 1942..............

JuneS, 1943...............

Sept. 20, 1943..............

Dec. 17. 1942..............

June3, 1943...............

Sept. 20, 1943..............

Sampling 

point

Station 1 » _ .

Station 2 2 __

Station 2 = ..

Station 2 2....

*

,

(feet) Depth 

25

50

78 

83

88

93

98

103

25"

50

75

100

105

110

115 

125

Surface 

25

50

75

100

105

110

115

120 

125

Surface 

25

50

75 

112

117

122

127

132

25

50

75

100

115 

120

125

130

135

25

50

75

100

107

112

117

122

127

132

-ils

Is §x

^- K

£^O

da S *** ^CSCT

O2

69.7

69.6

70.1

81.9

82.5

82.3

82.2

82.0

82.4 

84.1

86.6

85.0

85.9

86.2

86.4

87.6

89.4 

90.0

91.0 

89.3

88.4

87.4

89.3

89.3

87.1

88.9

87.8 

93.1

70.3 

69.9

70.4

82. 3 

82.9

82.3

82.8

82.8

82.7 

84.4

84.9

85.1

85.8

87.3

88.5 

88.0

88.3

88.3

91.6 

90.3

90.0

88.9

87.9

88.7

88.5

88.3

86.3

89.4

89.6

89.8

(Ca) Calcium 

68

80

77 

75

82 

84

74

80

87

60

88

82 

73

76

84 

19,

(Mg) Magnesium 

24

32

31 

33

34 

36

36

35 

35

25

29

33

32

34

35

37

&a

1* 

ll

as3 3 =0-3

02

46

60

61 

66

74 

72

73

64 

68

60

47

53

76

74

79 

75

Bicarbonate 

(HC0 )3

141

155

156

164

188 

328

151

174 

196

148

157

156 

166

173

198 

144

180

(S<W Sulfate 

991

298

290 

296

310 

20S

326

300 

307

230

276

293 

304

309

322 

335

305

(Cl» Chloride 

16

17

16 

16

18 

20

20

19 

19

15

17

16

18

18

19

20

19

 3. 2 

1

445

564

552

567

614

582

603

585 

616

464

535

554

586

598

636 

610

03 

1

Jo-^

 5°

268

331

320 

322

344

358

332

344 

361

252

338

340 

314

330

354 

332

See footnotes at end of table.
LOWER MISSISSIPPI RIVER BASIN 27

RESERVOIR BEHIND CONCHAS DAM, N. MEX. Continued

Chemical analyses, in parts per million Continued 

Samples from different depths Continued

Date of collection

Dec. 31, 1942..........'....

JuneS, 1943...............

Sept. 20, 1943........ . . .

JuueS, 1943...............

Sept. 20, 1943..............

Dee. 31, 1942..............

1

JuueS, 1943.... .

Sampling 

point

Stations 3....

f

Station 3 » ..

Station 3 ». _

Station 6 4 _

Station 6 »....

Station 7 5 _-.

Station?* .

1

91

75

01

85

91

96

101

25

50

75

100

107

112

117

122

127

25

50

75

100

105

110

115

120

25

50

75

83

88

93

98 

103

25

50

75

83

88

93

98

25

50

60

65

70

75

80 

85

25

. 50 

75

99

104

109 

119

Specific conduct- (KXIO at 5 ance

C.) 25° 

74,2

73.8

74.0

74 5

74.6

74 9

74 8

75 7

89.8 

85.1

84.8

85.5

86.2

87.6

88.6

88.6

88.6

92 0

92.2 

91.6

91. 6

88.8

88.8

88.4

88.8

88.6

88.4

89.0

88 5

85.5

84.2

84.7

85.2

84.9

85 1

86.1

85.9 

93.7

88.3

89.0

88.6.

86 9

86.5

87.9

88.6

88.3

76 8

77.2

77.9

77.8

77 7

78.0

78.4

78.2 

83.4

86.7

85.0

92.3

88.4

88.6

89.1

89.4 

93.1

1 

 81

3

71

96

58

78 

78

74

77 

89

74

7fl

74

84

76

79

78 

86

'M

s

s

36

32 

32

37 

37

3?

33 

36

35

28

29 

30

33

36

34 

36

^LI*

"S <* §£ 

II"O'Si

53

62 

91

SO 

77

63

63 

75

74

62

60 

60

69

72

68 

71

b Bin-atc aroe

(HCOs)

148

217 

168

265 

160

167

165

169 

320

155

173

150

152 

167

175

174

171 

259

(SO.) Sulfate 

246

291 

300

264 

337

394

281

287 

233

319

?I96

273

273 

292

?93

318

301 

267

Chloride (Cl)

15

17 

17

20 

22

91

17

~18 

20

21

19

16

17 

16

18

19

19 

19

Dissolved solids

484

606

581

610

630

549

562 

611

600

525

528 

566

576

611

586 

607

"a 

1

Id

lo

H

284

371 

276

346 

346

316

328 

370

328

294

304 

333

325

345

334 

362

See footnotes at end of tattle.
s»s»

3 3 3 

*-« £

||1
PEASE RIVER NEAR CROWELL, TEX.

way 283, 4 miles upstream from Raggedy C

rowell.

LOCATION. At gaging station on bridge on State Hi

and Orient Railway bridge, and 8 miles north of 

DRAINAGE AREA. About 2,940 square miles, of which about 530 square miles is probably nonc

RECORDS AVAILABLE. Chemical analyses: July 1942 to June 1943. 

EXTREMES, July 1942-June 1943. Dissolved'solids: Maximum, 13,930 parts per million Dec. 

Total hardness: Maximum, 3,370 parts per million May 1^3, 6-8; minimum, 868 parts per 

REMARKS. Records of discharge for period October 1942 to June 1943 are given in Water-Sup

* Chemical analyses, in parts per million, water year October 194% 

Date of collection

Oct. 1-10, 1942... ....

Oct. 11-14.. 

Oct. 15 .... ... .-

Oct. 16-20. 

Oct. 21, 30 ... ..'... 

Oct. 22-29, 31.... ...,. 

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

Nov. 11-20 . 

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

Dec. 1-3, 5-10... .... .

Dec..,ll-20 -... 

Dec. 21-22, 25-31 ......

Dee 24

Jan. 1-5, 7-10, 1943....... ,. 

Jan. 11-20 

Jan. 21, 23-31. . .......

Feb. 1-10. 

Feb. 11-19 

Feb. 20-28... . 

Mar. 1-W.. . . . 

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

Mar. 21-51 

Mean 

discharge 

(secondfeet)

9 48 

683 

4,270 

 4C2 

122 

76.4 

46.7 

18.8 

13.0

21.0 

22.6 

140.9 

49.0

39.0 

17.9 

14.1

11.9

- i go

8.18 

7.49 

6.60 

11.3

Specific 

conductr 

ance 

(KX10" 

at 

25° C.)

1,324 

,1,295 

244 

390 

624 

1,169 

1,259 

1,306 

1,286

1,358 

1,534 

1,173 

2,036

1,412 

1,704 

1,484

1,555 

1 499

1,453 

1,473 

1,540 

1,565

Silica 

(SiOs)

16 

7.0 

12 

12 

16 

19 

16 

12 

13

6.0 

8.0 

7.0

14 

11 

12

13 

11 

13 

11 

10 

10

Iron

(Fe)

0.10 

.05 

.15 

.10 

.05 

.10 

.10 

.05 

.10

.05 

.10 

.05

.10 

.05 

.10

.05 

."5 

.05 

.05 

.05 

.05

Calcium

(Ca)

752 

793 

302 

298 

466 

665 

734 

794 

818

768 

820 

635 

864 

684 

854 

812

839

849 

863 

891 

872

Magnesium

(Mg)

141 

153 

28 

41 

86 

122 

149 

163 

170

162 

174 

140 

170 

145 

183 

171

187

tse

189 

180 

186 

. 185

Sodium

(Na)

2,271 

2,169 

2 

532 

793 

1,984 

2,142 

2,188 

2,174

2,320 

2,740 

1,981 

4,0, 

2,429 

3,050 

2,540

2,730 

3,3*0 

2,":;0 

2,560 

2,750 

2,860

Potassium

(K)

23 

24

to

14

18 

18 

24 

23 

22

21 

21 

18

JO 

22

28 

23

28

27 

25 

22 

22

Bicarbonate

129 

130 

96 

107 

108 

149 

146 

147 

159

160 

147 

149 

145 

163 

170 

164

140

135 

149 

135 

141

Sulfate

(S04)

2,076 

2,216 

779 

782 

1,174 

1,771 

2,031 

2,190 

2,275

2,155

2,277 

1,751 

2,296 

1,870 

2,392 

2,263

2,384 

9,374 

2,459 

2,441 

'2,540 

2,484

Chloride

(CD

3,620 

3,490 

352 

810 

1,390 

3,160 

3,470 

3,570 

3,540

3,740 

4,440 

3,220 

-6,480 

3,920 

4,900 

4,100

4,430

4*. 070 

4,130 

4,430 

4,590

Flu

rid

(F

0.

See footnotes at end of table.
PEASE RIVER NEAR CROWELL, TEX. Continue

Chemical analyses, in parts per million, water year October 19J$ to Se

Date of collection

Apr. 1-7,9-10 ........ ...

Apr. 11, 16, 18-20... .......

Apr. 17 _- ... 

Apr. 21-23, 26-30 .... ..

May 1-3, 6-8 ..... ......

May 10, 14, 17-20 .... 

May 15-16, 23-26, 31.......

May 21-22, 27-30 .......

June 1-3...- _ . __ . _ ...

June 6-10. __ . _____ L.-

June 12-20 __ .............

June 21-30 ........ __ ..

Weighted average 8 .....

Mean 

discharge 

(secondfeet)

5.36 

J72.8 

1,060 

31.3 

»23.7 

* 1,102 

73.4 

81.3

«55. 5 

«2;169 

'44.9 

24.7

161

Specific 

con-' 

ductance 

(KXW 

at 

25° C.)

1,550 

1,333 

242 

1,434 

1,629 

507 

1,229 

431

1,207 

401 

1,088 

1,265

554

Silica 

<Si02)

6.0 

14 

12 

7.0 

8.0 

7.0 

4.0 

7.0

12 

10 

9.0 

11

13

Iron

(Fe)

0.05 

,05 

,tf 

.10

:05

.05 

.05 

.05

.10 

.10 

.10 

.10

0.08

Calcium 

(Ca)

911 

830 

326 

900 

991 

408 

671 

342

741 

335 

702 

814

424

Magnesium

(Mg)

191 

 167 

33 

192 

217 

56 

120 

48

133 

46 

135 

163

64

Sodium

(Na)

2,780 

2,136 

1 

2,332 

2,730 

686 

2,036 

544

1,964 

505 

1,742 

2,058

783

Potassium 

(K)

22 

21 

34 

25 

26 

15 

21 

15

.27 

20 

24 

26

16

Bicarbonate 

(HCOs)

117 

123 

76 

127 

122 

102 

126 

88

134 

119 

131 

125

112

Sulfate 

(S04)

2,570 

2,291 

847 

2,510 

2,810 

1,063 

1,815 

907

1,966 

858 

1,929 

2,286

1,130

Chloride

(Cl)

4,500 

3,500 

208 

3,840 

4,470 

1,110 

3,280 

875

3,220 

820 

2,840 

3,350

1,250

F

r

(

See footnotes at end of table.

Chemical analyses, in equivalent^ per million, water year October 1

Oe& 1-10, 1942.............

Oct. 1H4 ..............

Oct. 15. _____ , _ . ....

Oct. 16-20.................

Oct. 21, 30.................

Oct.22-29.....i.........l.

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

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

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

9.48

683

4,270

402

122

76.4

46.7

18.8

13.0

-i

37.53

39.58

15.07

14.87

23.26

33.19

36.64

39.63

40:83

11.60

12.58

2.30

3.37

7,07

10.03

12.25

13.40

13.98

98.75

94.32

10.

23.13

34.48

86.27

93.12

95.14

94.51

0.59

.61

15

.36

.46

.46

.61

.59

.56

2.11

2.13

1.57

1.75

1.77

2.44

2 39

2.41

2.61

43.22

46.14

16.22

16.28

24.44

36.87

42.28

45.59

47.36

102.10

98.43

9.93

22.84

39.20

89.12

97 87

100.69

99.84

0
Dec. 1-3,5-10... ..........

Dec. 11-20... ......

Dec. 21-22, 25-31 .......

Dec. 24 ......... ....

Jan. 1-5, 7-10, 1943 .

Jan. 11-20 ............

Jan, 21, 23-31 ......

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

Feb. 11-19 

Feb. 20-28 ....

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

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

Mar.21-31... 

Apr. 1-7, 9-10. _

Apr. 11, 16, 18-20 

Apr. 17 ... ........

Apr. 21-23, 26-30- .....

May 1-3, 6-8 

May 10, 14, 17-20 .. .

May 15-16, 23-26, 31 .

May 21-22, 27-30 

June 1-3 _ ._ 

June 6-10 _ ...

June 12-20...-. ..........

June 21-30 ___ . ..........

21.0

22.6

»40.9

49.0

39 0

17.9

14.1

11.9

7.82

8.18

7.49

6.60

11.3

5 36

272.8

1,060

31.3

3 23.7

H.102

73.4

81.3

S 55 5

">2,169

'44.9

24.7

161

3-8.33

40.93

31.69

43,12

34.14

42.63

40.53

41.88-

41.88

42.38

43.07

44.47

43.52

45.47

41.43

16.27

44.92

49.46

20.30

33.49

17.07

30.99

16.72

35.04

40.63

21.16

13.32

14.31

11.51

13.98

11.92

15.05

14.06

15 38

15.30

15.54

14.80

15.30

15.21

15.71

13.73

2.71

15.79

17.85

4.61

9.87

3.95

10.94

3.78

11.10

13.40

5.26

100.86

119 33

86.12

175

105.59

132 42

110.27

118.91

103.49

109.62

111.26

119.71

124.20

120 69

92.88

5

101.37

118.62

29.82

88.51

23.67

85.37

21.97

75.72

89.47

34.05

.54

.54

.46

88

56

.72

.59

.72

.67

.69

.64

.56

.56

.56

-.54

82

.64

.67

.38

.54

.38

.69

.51

.61

.67

0.41

2.62

2.41

2 44

2.38

2.67

2.79

2.69

2.29

2 44

2.20

2.44

2.21

2.31

1.92

2.02

1,25

2.08

2.00

1.67

2.07

1.44

2.20

-1.95

2.15

2.05

1.84

44.87

47.41

36.45

47.80

38.93

49.80

47.11

49.63

49.43

51.20

50.82

52.88

51.72

53 51

47.70

17.63

52.26

58.60

22.13

37.79

18.88

40.93

17.86

40.16

47.59

23.53

105.48

125.22

90.81

182.76

110.56

138.20

115.63

124.94

109.43

114.79

116.48

124.94

129.45

126.91

98.71

5.87

108.30

126.07

31.31

92.51

24.68

90.81

23.13

80.10

94.48

35.25

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

0.

1 Includes discharge for Dee. 21-23, 25-31.

2 Includes discharge for Apr. 11-16, 18-20.

3 Includes discharge for May 1-9. B Includes discharge for June 1-4

4 Includes discharge for May 10-14, 17-20. ' Includes discharge for June 5-1
MISCELLANEOUS STREAMS IN ARKANSAS RIVER B

Chemical analyses, in parts per million 

South Arkansas River at Poncha Springs, Colo.

Date of collection

Oct. 11, 1942...............

Mean 

discharge 

(secondfeet)

Specific 

conductance 

(KXW 

at 

25° G.)

43.0

Silica 

(SiOs)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

(Na)

Potassium 

(K)

Bicarbonate 

(HCOs)

224

Sulfate 

(S04>

Chloride 

(CD

16

Flu

rid

(F

Creek flowing into South Arkansas River near Poncha Sprin

Oct. 11, 1942............... 16.6 24 4.8 5.5 88 12 5.0 

Arkansas River near Buena Vista, Colo. 

Oct. 11, 1942............... 21.0 27 5.0 12 80 34 9.0 

Arkansas River near Boone, Colo. 

Oct. 14, 1942............... 119 130 47 75 213 452 25 

Arkansas River near Rocky Ford, Colo. 

Oct. 14, 1942-..,.. ....... .. 200 173 80 176 198 864 58 

Arkansas River near Las Anintas, Colo.

Oct. 14, 1942............... 268 261 98 241 240 1,221 78 
LOWER MISSISSIPPI RIVER BASIN 33

1

§so

5 a

-

§

8

1O

COto

I

CO

3

9

3

t&

<

i

V

1

9

9 

1

£

G

Charles River

«

55

10

O

i

§i 1

o» 

 *

i
MISCELLANEOUS STREAMS IN ARKANSAS RIVER BASI

Chemical analyses, in parts per million Contin

Arkansas River near Caddoa, Colo.

[Samples collected above John Martin reservoir at various points between mouth of Rule Creek and the highwa

14,500 square miles.]

Date of collection

Aug. 10-13, 15-20, 1942 

Aug. 21-25... ... ..........

Sept. 4-10 ..j.. .........

Sept. 11-17 .............

Sept. 18-26.----. ---------

Sept. 27-29 ..... ......

Oct. 1-9, 1942... ..... ......

Oct. 10-18 ..........

Oct. 19-21...... ...........

Oct. 22-24, 26-31 

Oct. 25 .............. .^

Nov. 2-10.... .............

Nov. 11-20 

Jfov. 21-30. ...............

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

Dee. 11-20, ............

Dfie. 21-24 . ..........

Dec, 26-26, 28-31.... .......

Jan. 1-10, 1943- ..........

Jan. 11-13, 15-18, 26, 30 

Jan. 14 ................

Feb. 2, 6 .............

Feb. 9 ...............

Teb. 13, 13, ^3, 23, 27.......

Mar.2, 6, 9 , .... 

Mar. 13, 16, 20 ..........

Aug. 7, 10,14...............

Mean 

discharge 

(secondfeet)

1

Specific 

conductance 

(KX105 

at 

25° C.)

179 

259 

182 

254 

283 

233

270 

294 

160 

216

228 

254

282 

288

284 

273 

248 

190 

230 

215 

213

236 

384 

275

190 

220

225

SUica 

(SiOj)

16 

17 

16 

17 

15 

13

14 

14 

9.0 

10

18

14 

19

14

Iron 

(Fe)

0.12 

.11

.10

.09 

.04

.40

Calcium 

(Ca)

180 

246 

182 

251 

272 

229

256 

269 

162 

211 

216- 

246 

> 264 

272

267 

240 

241 

193 

221 

212

233

237 

2S4

216

218

Magnesium 

(Mg)

65 

100 

68 

107 

120 

101

112 

128 

62 

89 

90 

110 

127 

124

125 

122 

108 

80 

104 

96

94 

114 

112

89 

82

Sodium

(Na)

Potassium 

(K)

155 8.8 

263 15 

157 

242 

292 

217

279 

315 

135 

203 

216 

246 

279 

238

318 

280 

243 

155 

210 

189

221 

604 

297

- 203 

216

Bicarbonate 

(HCOa)

183 

250 

171 

227 

241 

237

233 

247 

162 

211 

229 

243 

246 

275

298

288 

276 

258 

254 

224

258 

206 

250

237 

203

Pulfate

(SO.)

814 

1,264 

845 

1,267 

1,442 

1,136

1,348 

1,495 

743 

1,042 

1,065 

1,256 

1,421 

1,315

1,407 

1,307 

1,200 

S31 

1,096 

1,027

1,105 

2,021 

1,381

1,028 

1,050

Chloride 

(CD

42 

71 

37 

61 

73 

57

74 

85 

29 

49 

51 

63 

73 

76

77 

77 

65 

45 

58 

54

58 

71 

79

57 

56

F

r

(
MISCELLANEOUS STREAMS IN ARKANSAS RIVER BA

Chemical analyses, in equivalents per millio

South Arkansas River at Poncha Springs Colo

Date of collection .

Oct. 11, 1942...............

Mean 

discharge 

(secondfeet)

Specific 

conductance 

(KX1Q6 

at 

25° C.)

Silica 

(SiO»)

Iron 

(Fe)

Calcium 

(Ca)

-

Magnesium 

(Mg>

Sodium

<Na)

Potassium

(K)

Bicarbonate 

(HCOs)

3.67

Sulfate

(S04)

Chloride 

(CD

0.45

F

r

<

Creek flowing into South Arkansas River near Poncha Spri

Oct. 11, 1942......... ... 1.20 0.39 0.24 1.44 0.25 .14 

Arkansas River near Buena Vista, Colo.

Oct. 11, 1942...... . ........ 1.35 .41 .51 1.31 .71 .25

Arkansas River near Boone, Colo. 

Oct. 14, 1942..... ..... r _... 6.49 3. 87 3.25 3.49 9.41' 71

Arkansas River near Rocky Ford, Colo.

Oof. 14, 1942............... 8.63 6.58 7.67" 3.26 17. 9» 1.64

Arkansas River near Las Animas, Colo.

Oct. 14, 1942............... 13.03 8.06 10.46 3.93 25.42 2.20
MISCELLANEOUS STREAMS IN ARKANSAS RIVER BASI

Chemical analyses, in equivalents per million Con

Fountain Creek near Colorado Springs, Colo.

Pate of collection

Oct. 14, 1942...............

Mean 

discharge 

(secondfeet)

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(SiOs)

Iron 

(Fe)

Calcium 

(Ca)

3.29

Magnesium 

iMg)

1.15

Sodium 

(Na)

Potassium 

(K)

1.11

Bicarbonate 

(HCO»)

2.10

Sulfate 

(S0<)

3.06-

Chloride 

(Cl)

0,39

Fl

r

(

Fountain Creek near Pueblo, Colo.

Oct. 14, 1942.... .......... 7.09 3.70 5.59 3,80 11.76 82

St. Charles River near Pueblo, Colo.

Oct. 14, 1942............... 3 20 .96

Huerfano River near Boone, Colo.

Oct. 14, 1942..............

v

7.89 8,80 13.53 3.59 25 19 1 44
Arkansas River near Caddoa, Colo.

[Samples collected above John Martin reservoir at various points between Mouth of Rule Creek and the highway 

14,500 square miles.]

Aug. 10-13, 15-20, 1942. 

Aug. 21-25..... _____

Sept. 4-10.................

Sept. 11-17................

Sept. 18-26-.. ........ ....

Sept. 27-29............,..l

Oct. 1-9, 1942..............

Oct. 10-18.................

Oct. 19-21..... ...

Oct. 22-24, 26-31..;........

Oct 25............. .......

Nov. 2-10.................

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

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

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

Dec. 11-20.. ..............

Dec. 21-24.................

Dec. 25-28, 28-31. .........

Jan. 1-10, 1943.............

Jan. 11-13, 15-18 26, 30 

Feb. 2, 6........ ...... .....

Feb. 9......... ............

Feb. 13, 16, 20, 23, 27.......

Mar.2, 6,9... .... . ........

Mar. 13, 16, 20...... ......

Aug. 7, 10, 14..............

-

8.98 

12.28 

9 08 

12.53 

13.58 

11.43

12.78 

13.43 

8.09 

10.53 

10.73 

12.28 

13.18 

13.58

13.33 

11.98 

12.03 

9.63 

11.03 

1058

11.63 

11.83 

13.18

10.78 

10.88

5.35

8.22 

5.59 

8.80 

9.87 

8.31

9.21 

10.53 

5.10 

7.32 

7.40 

9.05 

10.44 

10.20

10.28 

10.03 

8.88 

6.58 

8 55 

7.89

7.73 

9.37 

9.21

7.32 

6.74

6.74 0.23 

11.44 .38 

6.81 

10.52 

12.70 

9.43

12.14 

13.71 

5.87 

8.81 

9.38 

10.68 

12.12 

10.33

13.81 

12.16 

10.55 

6.75 

9.12 

8.20

9.59 

26.26 

12.92

8.83 

9.42

3.00 

4.10 

2.80 

3.72 

3.95 

3.88

3.82 

4.05 

2.66 

3.46 

3.75 

3.98 

4.03 

4.51

4.S8 

4.72 

4.52 

4.23 

4.16 

3.67

4.23 

3.38 

4.26

3.88 

3.( 33

16.95 

26.32 

17.59 

26.38 

30.02 

23.65

28.06 

31.13 

15.47 

21.69 

22.17 

26.15 

29.58 

27.38

29.29 

27.21 

24.98 

17.30 

22.82 

21.33

23.01 

42.08 

28.75

21.40 

21.86

1.18 

2.00 

1.04 

1.72 

_ 2.06 

1.61

2.09 

2.40 

.82 

1.38 

1.44 

1.78 

2.06 

2.14

2.17 

2.17 

1.83 

1 27 

1.64 

1.52

1.64 

2.00 

2.23

1.61

1.58

0.0

.0

.0

.0
WESTERN GULF OF MEXICO BASIN

BRAZOS RIVER NEAR SOUTH BEND, TEX.

LOCATION. At gaging station at bridge on State Highway 67, 0.3 mile upstream from Wichi

downstream from Clear Fork of Brazos River, and 2.0 miles northeast of South Bend. 

DRAINAGE AHEA. 21,600 square miles, of which 9,240 square miles is probably noncontributing

RECORDS AVAILABLE. Chemical analyses: January 1942 to September 1943. 

EXTREMES, 1942-43. Dissolved solids: Maximum, 8,480 parts per million May 20; minimum, 

Total hardness: Maximum, 1,809 parts per million Aug. 1-10; minimum, 200 parts per milli

EXTREMES, JANUARY 1942-SEPTEMBER 1943. Dissolved solids: Maximum, that of May 20,1942

Total hardness: Maximum, that of Aug. 1-10, 1942; minimum, 123 parts per million Apr. 8-

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in W

Chemical analyses, in parts per million, water year October 19J$ t

Date of collection

Oct. 1-10, 1942.. .. ........

Oet 11-14

Oct. 15............. ....

Oct. 16 -- 

Oct. 17-20 -, . -

Oct. 21-22...... .......... .

Ocfc.23^26,31... ..... -.

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

Oct. 27-30 ..............

Nov. 4-10...... ..._... .

Nov. 1H8.. .-. .. .

N . 3S-SO...... ....,...-

Dec. 1-3, 5-10.... ....I. 

Dec. 11-14, 16, 18-20-..; 

TW> *I1 r

Jan. 2-10, 1943... ... 

Jan. 11-20 '- --

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

Mean 

discharge 

(gecondfeet)

540 

229 

, 2,700 

5,080 

24,920 

6,885

1 1,620

646 

1821 

2261 

a 138

*129 

«150 

 543 

'210 

120 

SO. 5

Specific 

conductance 

(KXW 

at 

25° C.)

362 

593 

210 

125 

90.1 

95.9

f 174 

i 143 

276 

275 

459 

558

517 

645 

895 

579

658 

728

Silica 

fSiOj)

12 

9.0

Iron

(Fe)

020 

.<W

Calcium 

(Ca)

184 

287 

113 

73 

64 

76

115

160 

148 

232 

3?0

259 

316 

292 

248 

288 

318

Magnesium

(Mg)

38 

60 

20 

13 

9 7 

13

19

27 

30 

50 

6-5

61

83 

80 

64 

77 

86

Sodium

<Na)

Potassium 

(K)

544 

942 

282 

158 

85 

103

226

423 

381 

«5» 

'633

779 

998 

1,598 

948 

1,071 

1,154 i

Bicarbonate 

(HCOs)

133 

146 

104 

121 

89 

132

136 

76 

149 

136 

167 

305

213 

212 

180 

202 

208 

202

Sulfate 

(SCW

445 

745 

233 

103 

111 

146

249 

106 

356 

307 

477 

564

525 

642 

579 

600 

658 

731

Chloride 

(CD

868 

1,500 

460 

262 

138 

144

342 

290 

662 

630 

1,120 

1,430

1,325 

1,740 

2,680 

1,525 

1,775 

1,935

Fluo

ride

<F)

0.5 

.1
Feb. 1-3, 5-10- ............

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

Feb. 21-28. -. 

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

Mar. 11-20 .. ..

Max. 21-24.. ............. .

Mar. 25-27........ ..... ...

Apr. 1-3. ....... ..........

Apr. 4-6.-.- ........ 

Apr. 7-10----.-..... 

Apr. 11, 13-14, 16.. ..

Apr. 17-19.. ..............

Apr.23-28---. _. ....

May I, 3, 6-10..... ........

May 11-14, 16-19.. --

May 20...... ..... ........

May 22-28, 31.. ...........

May 21, 29-30 _ -.

June 1, 8-10

June 2-7 _ .. __ ..

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

June 21, 26-29..:....... ...

June 22-25, 30__ ~

July 1,4-7,9-10- _ ..

July 2-3. -

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

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

July 21-22, 25-27. ....... ..

July 23-24, 28-31.. .......

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

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

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

Sept. 1-10 

Sept. 11-20 .............

Sept. 21-30 . 

*60.9

52.7

53.4

54.8

145

117

» 1,046

215

123

628

18 1,322

"1,693

"147

13141

"125

310

462

213

4,755

821

1,205

337

335

300

325

1,110

160

29.4

20.4

4.29

1.43

.40

.09

0

0.

678

705

644

611

599

566

537

183

501

1,040

836

354

151

325

363

407

1,378

301

640

447

232

265

329

211

409

181

897

370

539

897

872

713

633

637

555 476'

244

10 .05

346

324

291

286

310

304

110

296

370

366

207

88

177

210

236

410

144

258

257

192

142

230

178

277

106

502

186

278

380

368

342

326

322

288

242

136

94

94

86

93

99

99

29

74

98

98

44

18

45

62

65

107

38

66

45

31

25

-36

27

42

18

77

37

60

85

95

99

83

83

73

63

27

1,110

981

942

906

796

770

209

722

1,.89S

1,420

488

197

442

488

561

1 g3Q

431

1,059

642

249

386

419

238

575

236

1,437

564

840

. 1,549

1,199

1,041

962 | 4 8

943

813

740

340

222

226

154

119

201

195

125

135

164

139

136

108

154

171

153

142

150

149

119

110

137

108

107

110

117

133

126

120

128

12S

156

176

188

216

991

118

733

701

673

681

R91

S71

179

810"!

(MV7

915

540

164

416

KOQ

642

JY4Q

360

G63

691

510

RAQ

439

235

164

548

793

966

647

512

ill

533

4S4

509

305

1,925

1,710

1 fiXfl

1,600

1,485

1,255

395

1,175

3,100

2,365

768

328

728

815

910

4,310

675

1,705

995

372

555

fiQft

372

and

360

9 30ft

825

1,305

9 t\9n

2,580

1,800

1,760

t ion

I OCA

549

* 

See footnotes at e*rd of taMe.
BRAZOS RIVER NEAR SOUTH BEND, TEX. Contin

Chemical analyses, in equivalents per million, water year October 19

Date of collection

Oct. 1-10, 1942.. ..........

Oct. 11-14..... ............

Oct. 15....................

Oct.,16 . 

Oct. 17-20..... ......... ...

Oct. 21-22. .. ..

Oct. 23-26, 31.............

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

Oct. 27-30 ............

Nov. 4 10.. .......

Nov. 11-18.. ..............

Nov. 28-30.. ..............

'Dee. 1-3, 5-10.... .... .

Dec. 11-14, 16, 18-20 

Dec. 21.. .................

Jan. 11-20 

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

Feb. 1-3, 5-10-. ....... ....

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

Feb. 21-28..... ........

Mar. 1-10 . 

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

Mar. 21-24...... ..........

Mar. 25-27. .. ........

A«T. 1-3.. ................

A«r d fi

Apr. 7-10............... ..

Apr. 11, 13-14, !«__.. ._. 

Apr. 17-19... ___ .......

Apr. 23-28... ........

Mean 

discharge 

(secondfeet)

540 

229 

2,700

5,080

24,920

6,885

} 1,620

646 

1821 

2261 

8138

* 129

6150

6543 

'210

120 

80.5

860.9

52.7 

53.4 

54.8 

145 

117 . 

»1,046

?«

123 

628 

» 1,322

il,693

12147

Specific 

conductance 

(KX106 

at 

25° C.)

Silica 

(SUM

Iron 

(Fe)

Calcium 

(Ca)

9.18 

14.32 

5.64 

3.64 

3.19 

3.79

/ 5.74

7.99 

7.39 

11.58 

13.93

12.93 

15.77 

14.57 

12.38 

14.37 

15.87

17.27 

18.17 

14.52 

14.28 

15.47 

15.17 

5.49

14.77 

18.47 

18.27 

10.33 

4.39 

8.83

Magnesium 

(Mg)

3.12 

4.93 

1.64 

1.07 

.80 

1.07

1.56

2.22 

2.47 

4.11 

5.35

5.02

6.83 

6.58 

5.3& 

6.33 

7.07

7.73 

7.73 

7.07 

7.65 

8.14 

8.14 

2.38

6. 1)9 

8.i)6 

8.06 

3.62 

1.48 

3.70

Sodium 

(Na)

Potassium 

(K)

23.64 

40.97 

12.28 

6.86 

3.69 

4.48

9.82

18.39 

16.55 

28.66 

36.22

33.86 

43.39 

69.50 

41.20 

46.57 

50.18

48.27 

42.67 

40.97 

39.38 

34.61 

33.46 

9.10

31.38 

82. 53 

61.75 

21.22 

8.57 

19.21

Bicarbonate 

(HCOs)

2.18 

2.39 

1.70 

1.98 

1.46 

2.17

2.23

2.45 

2.23 

2.74 

3.36

3.49 

3.47 

2.95 

3.31 

3.41 

3.31

3,64 

3.70 

2.52 

1.95 

3.29 

3.20 

2.05

2.21 

2.69 

2 28 

2.23 

1.77 

2.52

Sulfate 

(S04)

9.26 

15.51 

4.85 

2.14 

2.31 

3.04

5.18

7.41 

6.39 

9.93 

11.74

10.93 

13.37 

12.05 

12.49 

13.70 

15.22

15.26 

14.59 

14.01 

14.18 

12.97 

18.13 

3.73

16,86 

18.88 

19.05 

11.24 

3.41 

8.66

Chloride 

(CD

24.48 

42.30 

12.97 

7.39 

3.89 

4.06

9.65

18.67 

17.77 

31.59 

40.33

37.37 

49.07 

75.58 

43.01 

50.06 

54.57

54.29 

48.23 

45.97 

45.13 

41.88 

35.39 

11.14

33.14 

87.43 

66.70 

21.66 

9.25 

20.53

Flu

rid

(F

0.0

.0
May 1, 3, 6-10., 

May 11-14, 16-19 

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

May 22-28, 31..... __ ....

May 21, 29-30 

June 11-20.. 

June 22-25, 30 

Tnlw 1 d 7 Q 1fl

July 2-3.. , ..__

Julys.. .. .......

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

July 21-22, 25-27... ....

July 23-24, 28-31..... 

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

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

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

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

Sept. 21-30. 

13141

"125

310

462

213

4,755

821

1,205

337

335

300

, 325

1,110

160

29.4

20.4

4.29

1.43

.40

.09

0.

0.

678

10.48

11.78

20.46

7.19

12.88

12.83

9^8

7.09

11 48

8.88

13.83

5.29

25.06

9.28

13.88

18.97

18.37

17.07

16.27

16 07

14.37

12.08

6.79

5.10

5.35

8.80

3.12

5.43

3.70

2.55

2.06

2.96

2.22

3.45

1.48

6.33

3.04

4.93

6.99

7.81

8.14

6.83

6.83

6.00

5.18

2.22

21.23

24 41

114.40

18.74

46.05

27.92

10.83

16.77

18.22

10.33

25.01

10.24

62.46

24.50

36.50

67.33

52 15

45 28

41 82 | .12

40.98

35.33

32.30

14.78

2.80

2.51

2.33

2.46

2.44

1.95

1.80

2.25

1.77

1.75

1.80

1.92

.2.18

2.07

1.97

. 2.10

2.10

2.56

2.88

3.08

3.54

3.67

1.93

11.01

13 37

19.76

7.50

13.80

14.39

10.62

7.95

11.41

9.14

15.05

4.89

24.23

11.41

16.51

20.11

13.47

10.66

11.26

11 10

10.08

6.35

22.99

26 66

121.56

19 04

48.09

28.06

10.49

15.65

19.46

10.49

25.38

10.15

67.41

23.27

36.81

71.07

72 76

57.25

50 77

49.64

42.02

35.25

15.48

.0

1 Includes discharge for Nov. 2-10

2 Includes discharge for Nov. 11-20. 

* Includes discharge for Nov. 21-30. 

4 Includes discharge for Dec. 1-10. 

11 Includes discharge for Dec. 11-20.

« Included discharge for Dec. 21-31.

7 Includes discharge for Jan: 1-10.

8 Includes discharge for Feb. 1-10. 

 Includes discharge for Mar. 25-31. 

10 Includes discharge for Apr. 11-16.

11 I

12 I

13 I

14 I
BRAZOS RIVER AT POSSUM KINGDOM DAM, NEAR GR

LOCATION. Immediately below dam on Brazos River, 2.6 miles upstream from Loving Creek

records reported are for gaging station at bridge on Palo Pinto-Graford Highway, 300 feet d

north of Palo Pinto. The gage is about 15 miles downstream from Possum Kingdom Dam

station except during periods of heavy local rains.

DRAINAGE AREA. 22,500 square miles above dam; 22,760 square miles above gaging station.

RECORDS AVAILABLE. Chemical analyses: January 1942 to September 1943.

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,291 parts per million Jan. 11-20; minim

To^al hardness: Maximum, 440 parts per million, Jan. 11-20, Sept. 21-30; minimum, 318 p

EXTREMES, JANUARY 1942 TO SEPTEMBER 1943. Dissolved solids: Maximum, 2,131 parts pe

million Sept. 1-10, 1942. 

Total hardness: Maximum, 661 parts per million Feb. 2-9, 1942; minimum, 318 parts per 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194'2 

Date of collection

Oct. 1-10, 1942 ..........

Oft. 11-20 ..............

Oct. 21, 23-30 .. .

Nov. 1-10... . _.

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

Nov>21-30___ _... 

Dee. 1-10-. - -.-

Dec. 11-20 ..._._.

Dec. 21-31.... , . -------

Jan. 2-8, 10, 1943-.

Jan. 11-20 ..... ...

Jan. 21-31 ....

Feb. 2-10. ...

Feb. 11-20 * .- 

Feb. 21-28 ....

Mean 

discharge 

(secondfeet 1

120 

13,310 

'3,097 

1,211

309 

315

267 

308 

350 

2 245 

536 

1.147

» 1,141 

1,142 

1.172

Specific 

conductance 

(KX105 

at 

25° C.I

168 

156 

179 

178 

171 

162

163 

159 

157 

185 

233 

210

200 

198 

198

Silica

8.0

Iron

(Fe)

0 20

Calcium

(Ca)

106 

102 

115 

110 

106 

104

100 

104 

98 

108 

132

118 

116

Magnesium

(Mg)

22 

20 

21 

22 

21 

21

19 

19 

18 

19 

27 

24

23 

24 

22

Sodium

(Na)

Potassium

(K)

?00 

189 

235 

228 

218 

194

206 

183 

183 

243 

302 

276

265 

259 

272

Bicarbonate 

(HC03 )

149 

142 

141 

132 

134 

127

128 

132 

123 

132 

140 

134

134 

137 

141

Sulfate

(S04 )

191 

179 

221 

219 

208 

182

192 

179 

187 

215 

242 

220

218 

215 

223

Chloride 

(CD

330 

315 

3SO 

372 

352 

335

333 

312 

298 

385 

516 

460

445 

435 

445

Flu

rid

(F

6 
Mar. 1-10.. ......___....__

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

Mar. 21-27, 29-31..........

Apr. 1-9........ ........ ..

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

Af>r. 21-25, 27.... ..........

May 7-10............ ......

May 11-12, 16-20.... ......

May 21-27, 29-30..........

June 3-4, 6-10.. ...........

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

June 21-30.. ...............

July 1-7,9-10..............

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

July 21-31.................

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

Ang. 11-20.................

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

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

Sept. 11-20 .............

Sept. 21-30. _ _-_-.,-.

1,162 

1,198 

1,350

 1,338 

1,246 

M,240

«598 - 

200

'882

8717 

785 

920 

899 

793 

1,107

1,054 

613 

433 

. 433 

67.4 

73.0

1,161

183 

174 

168

169 

182 

183 

177 

174 

173

171 

173 

177 

184 

189 

194

203 

212 

214 

222 

224 

225

176

7.0 .05

114 

103 

112

106 

106 

109 

107 

104 

103

105 

107 

109 

fl4 

112 

116

116 

118 

129 

128 

125 

130

109

21 

21 

21

20 

21 

21 

21 

21 

22

20 

20 

21 

21 

23 

24

25 

27 

27 

27 

28 

28

21

250 

213 

210

223 

234 

230 

224 

218 

212

212

218 

227 

230 

243

248

263

282 

278 I 5.6 

285 

299 

301

223

135 

121 

134

138 

131 

135 

130 

129 

130

127 

135 

136 

140 

140 

138

144 

151 

143 

147 

147 

155

138

216 

195 

195

198 

204 

203 

195 

194 

192

190 

188 

198 

204 

203 

218

232 

242 

247 

250 

252 

255

201

410 

358 

360

362 

382 

380 

375 

362 

355

360 

365 

378 

385 

408 

415

428 

455 

472 

472 

490 

495

370

See footnotes at end of table.

Chemical analyses, in equivalents per million, ivater year October 19

Oct. 1-10, 1942...... .......

Oct. 11-20 -- ---.

Oct. 21, 23-30... ...........

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

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

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

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

Dec. 11-20 ... ..

Dec. 21-31 -.. ........

Jan. 2-8, 10,1943 , _

Jan. 11-20 .__

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

120

13,310

13,097

1,211

309

315

267

308

350

2245

536

1,147

^

5.29

5.09

5.74

5 49

5.29

5 19

4.99

5 19

4.89

5.. 59

6.95

5 79

1.81

1.64

1.73

1.81

1.73

1.73

1.56

1.56

1.48

1.56

2 22

1.97

8.68

8. S3

10.21

9 93

9.46

8.44

8.94

7 Qfi

7 97

10.56

13.12

12.01

2.44

2.33.

2.31

2.16

2.20

2.08

2.10

2 16

2.02

2.16

2.29

2.20

3.98

3.73

4.60

4 56

4.33

3.79

4.00

3:73

3 89

4 48

5.04

4.58

9.31

8.88

10.72

10.49

9.93

9.45

9.39

8 an

8 40

10.16

14.65

12.97.

0
BRAZOS RIVER AT POSSUM KINGDOM DAM, NEAR GRAFORD

Chemical analyses, in equivalents per million, water year October 1942 

Date of collection

Feb. 2-10 .__... ...

Feb. 11-20 .. 

Feb. 21-28- .... ...

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

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

Mar. 21-27, 29-31.. .. ...

Apr. 1-9..... .. 

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

Apr. 21-25, 27 ____ - ....

May 7-10 . 

May 11-12, 16-20 - 

May 21-27, 29-30 

July 1-7, 9-10 

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

July 21-31 ........... ...

Aog.1-10 

Aug. 11-20 

Aug. 21-81 ..

Sept. 1-10 

Sept. 11-20- ...... 

Sept. 21-30 

Mean 

discharge 

(secondfeet)

81,141

1,142

1,172

1,162 

1,198

1,350

*'1,338

1,246

» 1,240

«598 

200

'882

8717 

785 

920 899 ' 

793 

1,107

1,054 

613 

433 

433 

67.4 

73.0

1,161

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(SiOs)

Iron

(Fe)

Calcium 

(Ca)

5.89 

5.79 

5 89 

5.69 

5.14 

5.59

5.29 

5.29 

5.44 

5.34 

5.19 

5.14

5.24 

6.34 

5.44 

5.69 

5.59 

5.79

5.79 

5.89 

6.44 

'6.39

6:24

6:49

5.44

Magnesium 

(Mg)

1.89 

1.97 

1.81 

1.73 

1.73 

1 73

1.64 

1.73 

1.73 

1.73 

1.73 

1 81

1.64 

1.64 

1.73 

1.73 

1.89 

1.97

2.06 

2.22 

2.22 

2.22 

2.30 

2.30

1.73

Sodium

(Na)

Potassium 

(K)

11.53 

11.26 

11.62 

10.87 

9.28 

9.11

9.68 

10.18 

10.01 

9.72 

9.46 

9.23

9.23 

9 46 

9.86 

10.01 

10 57 

10.80

11.42 

12.26 

12.07 0.14 

12.37 

* 13,00 

13.08

9.70

Bicarbonate 

(HCOs)

2 20 

2.25 

2.31 

2.21 

1.98 

2.20

2.26 

2 15 

2.21 

2.13 

2.11 

2.13

2 08 

2.21 

2.23 

2.29 

2.29 

2.36

2.36 

2.48 

2.34 

2.41 

2.41 

2 54

2.26

Sulfate 

(SCW

4 54 

4.48 

4 64 

4 50 

4.06 

4.06

4.12 

4.25 

4.23 

4.06 

4.04 

4.00

3.96 

3.91 

4.12 

4.25 

- 4.23 

4.54

4.83 

5.04 

5.14 

5.20 

5.25 

5.31

4.18

Chloride 

(CD

12.55 

12.27 

12.55 

11.56 

10.10 

10.15

10.21 

10.77 

10.72 

10.58 

10.21 

10.01

10.15 

10.29 

10.66 

10.86 

11.51 

11.70

12.07 

12.83 

13.31 

13.31 

13.82 

13.96

10.44

F

r

(

0

1 Includes discharge for Oct. 21-31.

2 Includes discharge for Jan. 1-10.

3 Includes discharge for Feb. 1-10

4 Includes discharge for Apr. 1-10.

5 Includes discharge for Apr. 21-30 

'Includes discharge for May 1-10.
RIO GRANDE AT SAN ACACIA, N. MEX.

LOCATION. At San Acacia diversion dam which is 0.2 mile above the San Acacia gagjng stati

stream from Rio Salado.

DBAINAGE ABEA. 26,770 square miles, including 2,940 square miles in closed basin in northe

RECORDS AVAILABLE. Chemical analyses: July 1937~to December 1937, March 1939 to Sep

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,631 parts per million June 29-30; min

Total hardness: Maximum, 686 parts per million June 29-30; minimum, 168 parts per mi

EXTREMES, 1937, 1939-43. Dissolved solids: Maximum, that of June 29-30, 1943; minimu

Total hardness: Maximum, that of June 29-30, 1943; minimum, 101 parts per million Jun

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-10, 1942-..-..-.. .

Get. 11-20... ....... ......

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

Nov. 1-10 

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

Nov. 21-30 

Dec. 1-10 

Dee. 11-20. 

Dee.21-ai. _ ....... .....

Jan. 1-10, 1943. . ... ..

an. 11-20 ..... 

J^n. 21-31... ..............

Feb. 1-10 

Feb. 11-20. ...

Feb: 21-28 - 

Mar. 11-20 .... ..

Mar. 21-31. 

Mean 

discharge 

(secondfeet)

526 

- 688 

479 

341 

216 

305

 678 

847 

- 988 

878 

786 

852

769 

718 

775 

704 

651 

190

Specific 

conductance 

(KX105 

at 

25? C.)

60 3 

 69.6 

68.0 

71.9

80.8 

81.0

71 .,8 

64 9 

62. S 

64.3 

66.0 

62.4

62.0 

61.3 

59.2 

58.9 

69.8 

' 77.2

Silica

(Si02 )

26 

28 

30 

32

OQ4O

28

28 

30- 

30 

30 

30 

29

28 

28 

29 

28 

31 

36

Iron

(Fe)

0.07 

.12 

.11 

.10 

.07 

.05

.06 

.10 

.08 

.06 

.06 

.06

.07 

.05 

.07 

.06 

.08 

.06

Calcium

(Ca)

60 

67 

66 

70 

76 

76

68 

64 

60 

62 

63 

60

59

58 

56 

56 

«3 

66

Magnesium

(Mg)

12 

15 

13 

14

14 

15

14 

13 

13 

12 

13 

12

13 

12 

11 

11 

14 

16

Sodium

(Na)

57 

68 

62 

68

77 

80

66 

57 

56 

60 

61 

59

57 

57 

55

53 

70 

79

Potassium 

(K)

4.0 

4.0 

3.0 

5 0 

4 6 

2 8

2.6 

4.6 

3.8 

3.4 

3.8 

4.2

2.7 

3 0 

2.9 

3.0 

5.8 

6.6

Bicarbonate 

(HC03 )

176 

182 

193 

206 

217 

218

201 

195 

186 

192 

189 

183

183 

184 

175 

173 

183 

192

Sulfate

(S04)

136 

181 

150 

163 

182 

188

155

137 

131 

133 

131 

123

121 

123 

119 

117

167 

181

Chloride

(CD

25 

30 

28 

34 

40 

40

35 

29 

30 

33 

35 

34

32 

32 

31 

31 

36 

45

F

r
RIO GRANDE AT SAN ACACIA, N. MEX. Continu

Chemical analy&es, in parts per million, water year October, 194% to Sep

Date of collection

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

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

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

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

May It-20......... .....

May 21. ...................

May 22-23, 25-31. ......

June 1, 3-10........... ...

June 21-26, 28 _ ... _.

June 29-30. ____ ........

Juhrl-2 . ... ...

July 3-19... ...............

July 11-20 .. 

July 21...... ..............

Julv 22-25, 27-31...........

Aug. 1-2, 4, 8-13, 16-17, 20. 

Aug. 5-7, 14-15, 18-19 

-Aug. 21-22... ....... 

Aug. 23-29, 31....... ...

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

Sept. 11-20 . .....

Sept/21-30 ..-. .

Mean 

discharge 

(secondfeet)

544 

879 

1,110 

1,513 

802 

785 

328

373 

290 

207 

3,650 

1,640 

490 

227 

837 

492

347 

572 

377 

883 

309 

272 

257

613

Specific 

conductance 

(KX105 

at 

25° C.)

76.0 

65.2 

61.8 

52 1 

62 4 

128 

77.4

70 5 

73.1 

75.5 

223 

102 

70 7 

76.0 

117 

79.5

92.5 

157 

106 

171 

94 5 

81.5 

77.2

78.3

Silica 

(SiOi)

35 

26 

24 

24 

33

34

36 

30

28

21

28 

32

32

30 

24

22 

27 

10 

31

28

Iron

(Fe)

0.06 

02 

.02 

.02 

.05

.04

.05 

.05 

.06

.04 

.04 

.06

.28

.12 

.16

.02 

.02 

.02 

.04

0.06

Calcium 

(Ca)

70 

65 '58 

49 

58 

112 

69

68 

62 

68 

191 

80 

65 

69 

104 

73

82 

154 

108 

172

88 

76 

72

73

Magnerium

(Mg)

15 

14 

13 

11 

12 

24 

15

14 

14 

14 

51 

18 

13 

14 

26 

15

17 

34 

22 

36 

17 

15 

14

16

Sodium 

(Na)

74 

61 

56 

47 

57 

14 

74

64 

76 

73 

27 

118 

72 

77 

li 

80

99 

172 

1C 

178 

95 

80 

72

78

Potassium 

(K)

6 8 

6.4 

4.3 

4.8 

3 7 

2 

4,3

3.7 

4.6 

4.2 

7 

5.3 

5.6 

5.4 

2 

4.2

4.3 

6.0 

13 

7,0

7 7 

6.9

4.8

4.4

Bicarbonate 

(HCOs)

197 

178 

174 

151 

174 

191 

197

193 

179 

195 

283 

175 

183 

196 

296 

198

201 

226 

234 

245 

201 

197 

210

191

Sulfate 

(SO.)

182 

154 

136 

111 

132 

387 

180

163 

176 

171 

854 

331 

172 

183 

314 

195

250 

600 

323 

648 

267 

217 

184

203

Chloride

(CD

39

28 

30 

22 

29 

89 

38

30 

36 

35 

118.

35 

31 

36

77 

37

45 

57 

38 

72 

42 

33 

34

36

Flu

ri

(F

0

0
RIO GRANDE AT SAN ACACIA, N. MEX. Continu

Chemical analyses, in equivalents per million, water year October 19

Oct. 1-10, 1942,.... ........

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

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

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

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

Nov. 21-30. ...

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

Dec. 11-20....... ..........

Dec. 21-31.......... ......

Jan. 1-10, 1943.............

Jan.Jl-20 .. ........

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

Feb. 1-10.... 

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

Feb. 21-28....... ..... .....

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

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

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

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

Apr. 11-20 

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

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

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

May 21 . .

May 22-23, 25-31. .........

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

June 21-26, 28. _______

June 29-30 .. 

Jiily 1-2........ ...........

July 3-10 . ....

July 11-2& .............

J»ly21._........ ..........

July 22-23, 27-31... ........

Aug. 1-2, 4, 8-13. 16-17, 20 .

Aug. 5-7, 14-15, 18-19... ...

Aug. 21-22...... ...........

Aug. 23-29, 31..... ........

Sept. 1-10.-... .

Sept. 11-20. ____ ... _ ..

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

626

688

479

341

216

305

678

847

988

878

786

852

769

718

775

704

651

190

544

879

1,110

1,513

802

785

328

373

290

207

3,650

1,640

490

227

837

492

347

572

377

883

309

272

257

613

2.99

3.34

3.29

3.49

3.79

3.79

3.39

3.19

2.99

3.09

3.14

2.99

2.94

2.89

2.80

2.80

3.14

3.29

3.49

3.24

2.89

2.45

2.89

5.59

3.44

3.39

3.09

3.39

9.53

3.99

3.24

3.44

5.19

3.64

4.09

7.69

5.39

8.68

-4.39

3.79

3.59

3.64

0.99

1.23

1.07

1.15

1.16

1/23

1.15

1.07

1.07

.99

1.07

.99

1.07

.99

.90

.90

1.16

1.32

1.23

1.15

1.07

.90

.99

1.97

1.23

1.15

1.15

1.15

4.19

1.48

1.07

1.15

2.14

1.23

1.40

2.80

1.81

2.96

1.40

1.23

1.16

1.32

2.48

2.96

2.70

2.96

3 36

3.48

2.87

2.48

2.44

2.61

2.65

2.57

2.48

2.48

2 39

2.30

3 04

3.44

3.22

2.65

2.44

2.04

2 48

6

3.22

.2.78

3.30

3.17

12

6.13

3.11

3.35

s.;

3.48

4.30

7.48

4

7.74

4.13

3.48

3.13

3.39

0.10

.10

.08

.13

.12

.07

.07

.12

.10

.09

.10

.11

.07

.08

.07

.08

.15

.17

.17

.16

.11

12

.09

19

.11

.09

.12

.11

05

.14

.14

.14

5

.11

.11

.to

47

.18

.20

.18

.12

0.11

2.88

2.98

3.16

3.38

3.56

3.57

3.29

3.20

3.06

3.16

3.10

3.00

3 00

3.02

2.S7

2.84

3. 00

3.15

3.23

2.92

2.85

2.48

2.85

3.13

3.23

3.16

2.93

3.20

4.64

2.87

3.00

3.21

4.36

3.25

3.29

3.70

3.84

4.02

3.29

3.23

3.44

3.13

2 83

3.77

3.12

3.39

3.79

3.91

3.23

2.85

2,73

2.77

2.73

2.56

2.62

2.66

2.48

2.44

3.48

3.77

3.79

3.21

2. S3

2.31

2.76

8.06

3.75

3.39

3.6fr

3.56

17.78

6.89

3.68

3.81

G.54

4.06

5.20

12.49

6.72

13.49

5.56

4.62

3.83

4.23

0 71

.85

.79

.96

1.18

1.13

.99

.82

.85

93

.99

96

.90

.90

.87

.87

1.02

1.27

1.10

.79

. .85

.62

.82

2.51

1.07

.85

1.02

 .99

3.33

.99

.87

1.02

2.17

1.04

1.27

1.61

1.07

2.03

1.18

93

.96

1.02

0.0

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

0.0
PECOS RIVER NEAR GUADALUPE, N. MEX

LOCATION. Approximately 600 feet upstream from gaging station, which is located 1,200 f

downstream from Alamogordo Creek, and 4H miles east of Guadalupe. 

DRAINAGE AKEA. 4,390 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: June 1937 to September 1943. (See table on pag

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,605 parts per million Sept. 21-30; mini

Total hardness: Maximum, 1,070 parts per million, Sept. 21-30; minimum, 503 parts per 

EXTREMES, 1937-43. Dissolved solids: Maximum, 2,590 parts per million Apr. 21-30, 1938; 

Total hardness: Maximum, 1,640 parts per million Apr. 11-30, 1938; minimum, 294 parts 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-7, 9-10, 1942........

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

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

Nov. 1-10 .. 

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

Nor. 21-30-......-.-....

Dec. 1-9 _ . _____ .....

Dee. 12-20..... ..

Dec. 21-31. .... . ..

Jan. 1-40, 1943... ....

Jan. 11-12, 14-15, 17-20.. 

Jan. 21-31 ...... 

Feb. 1-10-. .

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

Feb. 21-28.. ......

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

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

Mar. 21-50 ..........

Mean 

discharge 

(secondfeet)

142 

265 

172 

2,367 

283 

78.9

3.6 

117 

175 

172 

150 

83.0

4.6 

3.6 

3.2 

34 

3.7 

677

Specific 

conductance 

(KX106 

at 

25° C.)

98.4 

102 

109 

111 

117 

126

133 

130 

135 

138 

141 

148

154 

156 

181 

163 

164 

160

Silica 

(SiOs)

16 

14 

14 

12 

12 

9.5

12 

10 

10 

11 

10 

16

12 

13 

11 , 10 

11 

17

Iron 

(Fe)

0.05 

.06 

.05 

.06 

.06 

.04

.05 

.04 

.04 

,03 

.03 

.10

.06 

.08 

.04 

.04 

.04, 

.06

Calcium 

(Ca)

162 

168 

182 

188 

199 

212

216 

221 

231 

236 

' 242 

237

258 

272

"»T7

278 

-288 

. 274

Magnesium

(Mg)

24 

25 

27 

27 

29 

28

35 

31 

33 

84 

 34 

44

44 

45 

43 

43 

43 

45

Sodium

(Na)

30 

30 

31 

30 

34 

39

49 

41 

4tt 

34 

36 

56

52 

49 

54 

55 

55 

55

Potassium 

(K)

2.6 

2.6 

3.6 

3.6 

3.4 

1.4

2.0 

1.6 

2.4 

1 8 

2.2 

2.2

3.0 

3.2 

1.8 

1.8 

2.0 

4.0

Bicarbonate 

(HC03)

103 

119 

106 

117 

118 

117

129 

122 

125 

125 

122 

138

132 

132 

1-3*5 

120 

120 

80

Sulfate 

(BOO

423 

432 

480 

484 

516 

556

594 

586 

606 

615 

.635 

669

719 

737

754 

770 

778 

790

Chloride 

(CD

26 

29 

33 

34 

36 

42

47 

46 

47 

47 

50 

56

61 

62 

62 

65 

65 

66

Fl

ri

(

0
Apr. 1-10.- __ ...........

Apr. 11-20-..- _ 

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

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

May 11-15, 17-20.... ......

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

June 11-16, 18-20 

June 21-23, 27-30. 

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

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

July 21-30. --- _

Aug. 1-7, 9-10.. ....... 

Aug. 11-20.-- .

Aug. 21-25, 27-31 

Sept. 1-8, 10. ..

Sept. 11-20 

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

393

119

90.3

99.6

117

121

1,198

753

" 93.6

32.5

101

121

106

941

978

130

886

108

311

164

104

166

167

167

167

172

173

171

161

172

170

173

179

181

183

186

195

153

15

13

22

19

19

16

14

14

12

17

12

14

13

14

13

16

14

18

13

.05

.07

.05

.05

.05

.05

.05

.05

.06

.04

.04

.04

.06

.06

.04

.02

.02

.02

0.05

285

287

286

293

291

292

300

308

307

272

298

295

304

314

324

316

326

345

266,

45

42

44

42

42

43

44

43

42

41

42

42

46

45

45

47

48

51

39

55

54

57

54

54

54

55

53

55

60

60

61

55

58

57

64

65

68

48

4.4

4.0

3.5

2.6

2.7

.2.6

3.2

2.2

3.8

3.2

2.2

3.0

2.3

1.8

2.2

5.3

5.3

4.6

3.2

102

97

71

73

65

75

86

95

96

76

89

- 83

89

99

105

92

104

110

102

813

818

822

830

837

827

850

848

849

781

831

830

854

879

884

900

926

979

733

68

65

67

67

67

68

70

71

69

67

71

70

71

72

75

76 78

84

590

Chemical analyses, in equivalents per million, water year October 19

Oct. 1-7, 9-10, 1942........

Oct. 11-20 . 

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

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

Nov. 11-20.... 

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

Dee. 12-20... ........ .

Dec. 21-31. ., .

Jan. 1-10, 1943............

Jan. 11-12, 14-15, 17-20 

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

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

Feb. 21-28.... ...... ...

Mar. 1-10 ... 

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

Mar. 21-30.. .......

142

265

172

2,367

283

79.9

3.6

117

175

172

159

83.0

4.5

3.6

3.2

3.4

3.7

677

T

8.09

8.39

9.08

9.38

9.93

10.58

10.78

11.03

11.53

11.78

12.08

11.8*

12.88

13.58

13.83

13.88

14.13

13.68

1.97

2.06

2.22

2.22

2.38

2.30

2.88

2.55

2.71

2.80

2.80

3.62

3.6?

3.70

3.45

3.54

3.54

3.70

1.30

1.30

1.35

1.30

1.48

1 70

2.13

1.78

1.74

1.48

1.57

2.44

3.36

2.13

2.35

2.39

2.39

2.39

0.07

.07

.09

.09

.09

.04

.05

.04

.06

.05

.-06

.06

.n«

.08

.05

.04

05

.10

1.69

1.95

1.74

1.92

1.93

1.92

2.11

2.00

2.05

2.05-

2.00

2.26

2. IB

2.16

2.23

1.97

1.97

1.31

8.81

8.99

9.99

10.08

10.74

11.58

12.36

12.20

12.62

12.80

13.22

13.93

14. 07

15.34

15.70

16.03

16:20

16.45

0.73

.82

.93

.96

1.02

1.18

1.33

1.30

1.33

1.33

1.41

1.58

1.72

1.75

1.75

1.83

1.83

1.86

0.

.
PECOS RIVER NEAR GUADALUPE, N. MEX. Contin

Chemical analyses, in equivalents per million, water year October 194% to 

Date of collection

Apr. 1-10..- 

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

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

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

May 11-15, 17-20-.. 

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

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

June 11-16, 18-20... .......

June 21-23, 27-30...... ....

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

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

July 21-30.. .-...... 

Aug. 1-7,9-10 -. 

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

Aug. 21-26, 27-31... ........

Sept. 1-8, 10.. ... 

Sept 11-20...,. ...........

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

Mean 

discharge 

(secondfeet)

393 

119 

90.3 

99.6 

117 

121

1,198

753 

93.6 

32.5 

101 

121

106 

941 

978 

130 

886 

108

311.

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(Si02)

Iron

(Fe>

Calcium 

(Ca)

14.23 

14.32 

14.28 

14.62 

14.52 

14.57

14.97 

15.37 

15.32 

13.58 

14.87 

14.72

15.17 

15.67- 

16.17 

15.77 

16.27 

17.22

13.28

Magnesium

(Mg)

3. .70 

3.45 

3.62 

3.45 

3.45 

3.54

3.62 

3.54 

3.45 

3.37 

3.45 

3.45

3.78 

3 70 

3.70 

3-87 

3.95 

4.19

3.21

Sodium

(Na)

2.39 

2.35 

2.48 

2.35 

2.35 

2.35

2.39 

2.30 

2,39 

2.61 

2.61 

2.65

2.39 

2.44 

2.48 

2.78 

2.83 

2.96

2.09

Potassium 

(K)

0.11 

.10 

.09 

.07 

.07 

.07

.08 

.06 

.10 

.08 

.06 

.08

.06 

.05 

.06 

.14 

.14 

.12

0.08

Bicarbonate 

(HCOs)

1,67 

1 59 

1.16 

1.20 

1.07 

1.23

1,41 

.56 

.57 

.25 

.46 

.36

1.46 

1.62 

1.72 

1.51 

1.70 

1.80

1.67

Sulfate

(SO,)

16.93 

17.03 

17.11 

17.28 

17.43 

17.22

17.70 

17.65 

17.68 

16.26 

17.30 

17.28

17.78 

18.30 

18.40 

18.74 

19.28 

20.38

15.26

Chloride

(Cl)

1.92 

1.83 

1.89 

1.89 

1.89 

1.92

1 97 

2.00 

1.95 

1.89 

2.00 

1.97

2.0Q 

2.03 

2.12 

2.14 

2 20 

2/37

1.66

Flu

rid

(F

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

0.0
PECOSS RIVER NEAR ACME, N. MEX.

LOCATION. At highway bridge on U. S. Highway 70, approximately 3 miles above gaging st

railroad station, 3-Hj miles downstream from Salt Creek, 5 miles southwest of Acme, and 13 

DRAINAGE AREA. 11,380 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1943. (See table on pag

EXTREMES, 1942-43. Dissolved solids: Maximum, 6,980 parts per million Mar. 21-27; minim

Total hardness: Maximum, 2,740 parts per million Mar. 21-27; minimum, 759 parts per m

EXTREMES, 1937-43. Dissolved solids: Maximum, 19,870 parts per million May 23-June 2, 

Total hardness: Maximum, 5,320 parts per million May 23-June 2, 1938; minimum, 528 p

REMARKS. Records of discharge for water year Octo*ber 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194® 

Date of collection

Oct. 1-10, 1942. ...........

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

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

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

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

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

Dec. 1-4.. ........ ........

Dec. 6-10. _ ... .

Dec. 11-20.. ..............

Dec. 21-23, 25-27, 29-31 

Jan. 1-5, 7-10, 1943.. ......

Jan. 11-20. .............

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

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

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

Feb. 21-28.. ........... ...

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

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

Mar. 21-27

Mar. 30-31.-.. . 

Mean 

discharge 

(secondfeet)

177 

190 

226 

2,049 

383 

142

114

70.5 

76.4 

209 

186 

146 

173

41.9 

22.5 

20.9 

15.6 

9.6 

9.4 

1,030

Specific 

conductance 

(KXW 

at 

25° C.)

259 

245 

230 

169 

194 

256

275 

469 

427 

277 

255 

285 

276

503 

532 

634 

753 

893 

951 

224

Silica 

(SiOs)

16 

17 

15 

15 

17 

14

13 

13 

12 

14 

11 

12 

11

10 

11 

11 

18 

16 

16 

9.0

Iron

(Fe)

Calcium 

(Ca)

354 

318 

306 

280 

298 

343

357 

458 

452 

334 

335 

358 

357

508 

362 

580 

630 

688 

728 

364

Magnesium 

(Mg)

65 

72 

66 

45 

52 

68

74 

123 

117

74 

75 

73 

70

132 

158 

163 

185 

215 

225 

59

Sodium

(Na)

Potassium 

(K)

176 

152 

134 

54 

86 

180

200 

494 

416 

227 

178 

221 

205

532 

651 

744 

973 

1,222 

1,357 

95

Bicarbonate 

(HCOs)

124 

121 

127 

112 

130 

' 145

148 

160 

149 

136 

140 

149 

150

162 

160 

150 

136 

123 

146 

116

Sulfate 

(804)

989 

923

862 

748 

812 

985

1,030 

1,378 

1,374 

967 

962 

1,037 

1,021

1,542 

1,748 

1,844 

2,066 

2,311 

2,425 

1.004

Chloride 

(CD

285 

255 

230 

92 

135 

27.0

310 

820 

680 

364 

294 

334 

310

870 

1,075 

1,200 

1,550 

1,950 

2,160 

154

Fl

r

(
PECOS VALLEY NEAR ACME, N. MEX. Continu

Chemical analyses, in parts per million, water year October 194% to Se

Date of collection

Apr. 1-10- . ^ 

ATW 11 90

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

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

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

May 21-23.. ..............

May 24-27, 29-31..........

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

June 21, 23-30...... ....

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

July 4-7. ...............

July 8-10...... ............

July 11. ................

July 12-17................

July 18-20 

July 21-30-. ........

Aug. 1-4,6-10... .. .....

Aug. 11-14.. ..............

Aug. 15-2QAug. 21-31.. ...... ........

Sept. 1-10- 

Sept. 11-20 __ . ___ ...

Sept. 21-23, 26-30. 

Sept. 24

Mean 

discharge 

(secondfeet)

392 

195 

26.3 

8.9 

9.0 

23.7 

53.1

202 

1,302 

835

24.8 

346 

84 2 

. 16.7 

5.0

8

180

26.7

4

5

«742 

996 

67.9 

749 

'65.3

235

Specific 

conductance 

(KX106 

»f 

25° C.)

270 

269 

448 

598 

633 

594 

393

404 

220 

214 

315 

266 

184 

356 

299 

553 

229 

320

437 

271 

465 

253 

222' 

271 

237 

266 

. 601

235

Silica 

(SiOs)

10 

18 

20 

23 

20 

17 

19

15 

W 15~ 

15 

18 

19 

13 

12 

13 

13 

16

20

14 

10 

14 

16 

13

9.0

11

Iron

(Fe)

Calcium

(Ca)

403 

396 

550 

665 

672 

658 

520

572 

377 

379 

500 

393 

235 

438 

387 

576 

325 

424

580 

382 

572 

396 

372 

404 

389 

424 

640

^57

Magnesium

(Mg)

70 

' 70 

123 

165 

171 

165 

109

128 

56 

54 

89 

71 

42 

90 

82 

129 

60 

92

138 

75 

162 

" 73 

56 

69 

63 

80 

224

52

Sodium 

(Na)

Potassium 

(K)

181 

182 

438 

662 

722 

656 

350

311 

100 

85 

192 

166 

132 

306 

226 

597 

142 

237

346 

183 

396 

131 

96 

169 

114 

135 

578

131

Bicarbonate 

(HCOs)

118 

107 

95 

100 

99 

98 

102

96 

106 

97 

98 

95 

102 

93 

98 

115 

94 

85

84 

55 

102 

76 

100 

90 

111 

102 

134

112

Sulfate 

(S04)

1,172 

1,157 

1,728 

2,140 

2,198 

2,153 

1,635

1,854 

1,077 

1,067 

1,506 

1,173 

707 

1,322 

1,201 

1,786 

988 

1,330

1,821 

1,212 

1,913 

1,188 

1,062 

1,215 

1,137 

1,254 

2,303

1,090

Chloride

(Cl)

262 

268 

675 

1,040 

1,120 

1,010 

510

440 

126 

114 

270 

235 

158 

478 

328 

930 

183 

352

558 

250 

622 

194 

126 

226 

144 

206 

895

197

Flu

ri

(F

See footnotes at end of table.
PECOS RIVER, NEAR ACME, N. MEX. Continue

Chemical analyses, in equivalents per million, luater year October 1

Oct. 1-10, 1942............

Oct. 11-20 - -

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

Nov. 1-10. . 

Nov. 11-20 .. .

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

Dec. 1-4... ...............

Dec. 5-10--.. .... ... ..

Dec. 11-20-. ..............

Dee. 21-23, 25-27,29-31. 

Jan. 1-5, 7-10, 1943- 

Jan. lf-20_ .............

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

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

FeT>. 11-20....... .........

Feb. 21-28. ...............

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

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

Mar. 21-27- ............

Mar. 30-31. ................

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

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

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

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

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

May 21-23.. ..............

May 24-27, 29-31..........

June 1-2, 4-6 ..............

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

June 21, 23-30... ..........

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

July 4-7-. .............

July 8-10 . ...........

July 11....................

July 12-17 ..............

July 18-20 

July 21-30 ..............

177

190

226

2,049

383

142

114

70.5

76.4

209

186

146

173

41.9

22.5

20.9

15.6

9.6

»19.4

* 1,030

392

195

26.3

8.9

9.0

23.7

53.1

202

1,302

835

24.8

346

1 QA O

[16.7

5.0

s

180

26.7

17.67

15.87

15.27

13.98

14.87

17.12

17.82

22.86

22.56

16.67

16.72

17.87

17.82

25.36

28.05

28.95

31.44

34.34

36.34

18.17

20.11

19.77

27.45

33.19

33.54

32.84

25.95

28.55

18-82

18.92

24.96

19.62

11.73

21. 8«

19.32

23.75

16.22

21.16

5.35

5.92

5.43

3.70

4.28

5 59

6.09

10.12

9.62

6.09

6 17

6.00

5.76

10.86

12.99

13.40

15.21

17.68

18.50

4.85

5.76

5.76

10.12

13.57

14.06

13 57

8.96

10.53

4.61

4.44

7.32

5.84

3.45

7.40

6.74

10.31

4.93

7.57

7.66

6.62

5.84

2.35

3.72

7.81

8.71

21.48

18.07

9.89

7.74

9.60 , 8.90

23.11

28.32

32.36

42.82

53.13

59.02

4.15

7.89

7 91

19.03

28.78

31.39

28.53

15.21

13.54

4.33

3.68

8.35

7.21

5.73

13.32

9.84

25.93

6.19

10.31

2.03

1 98

2.08

1 84

2.13

2.38

2.43

2.62

2.44

2.23

2.29

2.44

2.46

2.66

2 62

2.46

2.23

2.02

2.39

1.90

1.93

1 75

1.56

1.64

1.62

1.61

1.67

1.57

1.74

1.59

1.61

1.56

1.67

1.52

1.61

l.SS

1.54

1.39

20.59

19 22

17.95

15.57

16.91

20.51

21.44

28.69

28.61

20.13

20.03

21.59

21.26

32.10

36.39

38.39

43.01

48.11

50 49

20.90

24.40

24,09

35.98

44.55

45.76

44.82

34.04

38.60

22.42

22.21

31.35

24.42

14 79

27.52

^25.00

20.57

27.69

8.04

.7.19

6.49

2.59

' 3.81

7.61

8.74

23.13

19.18

10.27

8.29

9 42

8.74

24.54

30.32

33.84

43.71

55.00

60.92

4.34

7.39

7.56

19.04

29.33

31.59

28 49

14.38

12.41

3.55

3.22

7.61

6.63

4.46

13.48

9.25

5.16

9.93

See? ootnotes at end of table.
PECOS RIVER NEAR ACME, N. MEX. Continued

Chemical analyses, in equivaknts per million, water year October 194% to S

Date of collection

\

AUK. 1-4, 6-10-.. . ........

Aug. 11-14.. ..............

Aug. 15-20.. ........... ..

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

Sept. I-IO........ .........

Sept. 11-20 ...............

Sept. 21-23, 25-30. .........

Sept. 24.....,.:...........

Mean 

discharge 

(secondfeet)

4

5

«742 

996 

67.9 

749 

'65.3

255

Specific 

conductance 

(KX106 

at 

25° C.)

Silica 

(SiOz)

Iron

(Fe)

Calcium 

(Ca)

28.95 

19 07 

28.55 

19 77 

18 57 

20 16 

19 42 

21.16 

31.94

17.82

Magnesium 

(Mg)

11.35 

6 17 

13 32 

6.00 

4 61 

5 67 

5 18 

6 58 

18 42

5.10

Sodium

(Na)

Potassium 

(K)

15 04 

7.95 

17.20 

5 71 

4.16 

7.34 

4 97 

5 88 

25.12

5.70

Bicarbonate 

(HCOs)

1.38 

.90 

1.67 

1.25 

1 64 

1.48 

1 82 

1 07 

2 20

1 84

Sulfate 

(SO.)

37 91 

25 23 

39.83 

24 73 

22 11 

25 30 

23 67 

26.11 

47 95

21 22

Chloride 

(CD

16 02 

7.05 

17 54 

5.47 

3 55 

6 37 

4 06 

5 81 

25.24

5.50

Flu

rid

(F

1 Includes discharge for Mar. 28.

2 Includes discharge for Mar. 29. 

8 No flow on July 14-17.

4 Oue second-foot for Aug. 1: no flow on Aug. 2-4, 6-10. 

6 No flow on Aug. 11-14. 

6 No flow on Aug. 15.

7 
PECOS RIVER NEAR ARTESIA, N. MEX.

LOCATION. At gaging station at bridge on Artesia-Lovington highway, 4.2 miles east of Ar

16.5 miles north of MeMillan Dam.

DRAINAGE AREA, 15,300 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1943. (See table on pag

EXTREMES, 1942-43. Dissolved solids: Maximum, 6,820 parts per million Aug. 11-18; min

Total hardness: Maximum, 2,550 parts per million May 1-10, Aug. 11-18; minimum, 506 

EXTREMES, 1937-43. Dissolved solids: Maximum, 10,800 parts per million Sept. 4-5, 1940; 

Total hardness: Maximum, 3,250 parts per million Sept. 4-5, 1940; minimum, 404 parts p

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-10, 1942 ..........

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

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

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

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

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

Dec. 1-5, 7-8, 10-.-...------

Dec. 11-14, 17--20 ... ... ..

Dec. 21-26, 28-31 »..--

Jan. 1-9,1943... ...........

Jan. 11-13, 15-20 ------

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

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

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

Feb. 21-23, 25-28 ------

Mar. 2-10----. ......... .

Mar. 21-27, 29-30 ..... . .

Mar. 31__ .................

Mean 

discharge 

(secondfeet)

372 

374 

414 

1.007 

2,762 

585 

316

280 

245 

439 

368 

351 

340

231 

152 

135 

134 

119 

113 

974

Specific 

conductance 

(KX106 

at 

25° C.)

434 

480 

397 

441 

224 

296 

439

508 

586 

503 

441 

448 

450

544 

701 

742 

740 

760 

803 

434

Silica 

iSiOs)

25 

21 

21 

20 

14 

12 

19

 W 

20

17 

19 

16

, 1S

18 

20 

17 

22 

22 

22

Iron

(Fe)

0,06 

.03 

.06 

.04 

.04 

.03 

,03

.03 

.04 

.04 

.04 

.05 

.03

02 

.03 

34 

.04 

.04 

.03

Calcium

(Ca)

420

414 

386 

420 

362 

357 

426

456

48S 

422 

416

428 

428

462 

548 

554 

532 

556 

566

Magnesium

(Mg)

128 

144 

117 

141 

56 

86 

138

165 

170 

136 

126 

132 

147

172 

221 

234 

230 

237 

250

Sodium

(Na)

437 

515 

395 

45 

119 

239 

460

552 

69« 

601 

467

474 

456

587 

Sal 

925 

928 

980 

1,046

Potassium

(K)

16

IS 

8 8 

2 

3 2 

8 8 

9 6

9.6 

16 

12 

12 

11 

8.0

8.8 

10 

12 

13 

14 

12

Bicarbonate 

(HC03 )

123 

122 

141 

168 

116 

137 

160

190 

187 

172 

181 

192 

172

183 

205 

235 

135 

149 

178

Sulfate

(SO.,)

1,361 

1,435 

1,277 

1,376 

1,035 

1,079 

1,391

1,509 

1,653 

1,411 

1,347 

1,368 

1,409

1,597 

1,939 

2,013 

2,005 

2,068 

2,117

Chloride

(CD

720 

835 

615 

735 

150 

375 

720

900 

1,095 

920 

725 

735 

750

980 

1,395 

1,500 

1,510 

1,575 

1,680 

590

F

r
PECOS RIVER NEAR ARTESIA, N. MEX. Contin

Chemical analyses, in parts per million, water year October 1942 to S

Date of collection'

Apr. 1-9 .... ............

Apr. 11-14, 16-17, 19-20 

Apr. 21-29....... ..........

May 1-4, 6-10.............

May 11-12, 14-20..........

May 21-24, 26-31... .......

June 8-10 _ . _ .. _________

June 11-15, 17-20..........

June 21-24.................

June 25-29........ _ . _ ..

June 30 ___________

July 1-2. ...............

July 3-10...... ............

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

July 21-25.......... .......

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

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

Aug. 11-18... ..............

Aug. 19-20 .............

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

Sept. 1-8, 10...............

Sept, 11, 13-14 ... _ ....

Sept. 15-20................

Sort. 21.. .................

Sept. 22-30... . ._.:_. 

Mean 

discharge 

(secondfeet)

>662 

224 

113 

71 

79 

99.7

133 

1,230 

' 994 

110 

69.8 

729

1,170 

. 323 

145 

191 

96.4

44.9

45.9 

689 

1,075

128 

108 

2867 

292 

138

365

Specific 

conductance 

(KX10* 

at 

25° C.)

346 

492 

651 

841 

809 

713

670 

306 

271 

431 

607 

293

160 

417 

621 

415 

586

792 

955 

397 

260

401 

503 

257 

267 

415

388

Silica 

(SiOs)

15 

23 

20 

23 

18 

24

22 

17 

17 

20 

25 

19

18 

21 

20 

20 

22

22 

15 

13 

14

15 

22 

11

13

17

Iron

(Fe)

0.03 

.04 

.04 

.04 

.04 

.02

.02 

.05 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02

.04 

.04

.08 

.04

.04 

.04 

.03

0.04

Calcium 

(Ca)

433 

494 

542 

604 

574 

554

584 

454 

426

477 

548 

302

142 

403 

506 

4'!2 

498

578 

602 

477 

419

466 

- 466 

418

458

424

Magnesium 

(Mg)

94 

155 

204 

254 

254 

218

210 

80 

71 

123 

170 

83

37 

125 

196 

120

187

240 

254 

111 

66

108 

149 

66

119

112

Sodium

(Na)

266 

523 

798 

1,133 

1,076 

916

814 

204 

158 

400 

690

ae

121 

426 

731 

408 

656

1,061 

1,38 

35 

146

378 

5( 

135

371

369

Potassium 

(K)

7.2 

11 

9.6 

11 

10 

10

11 

6.4 

5.2 

5.6 

8.0 

3

8.4 

6.8 

12 

7.2 

7.2

18 

8 

,0 

3.6

9.6 

6

4.8

15

8.1

Bicarbonate 

(HCOs)

153 

127 

124 

150 

165 

130

126 

122 

99 

85 

107 

118

100 

121 

129 

130 

120

95 

99 

103 

94

84 

85 

104

109

133

Sulfate 

(SCW

1,304 

1,667 

1,957 

2,267 

2,191 

2,044

2,071 

1,333 

1,225 

1,516 

1,824 

938

417 

1,381 

1,789 

1,393 

1,763

2,176 

2,283 

1,554 

1,205

1,477 

1,659 

1,209

1,444

1,340

Chloride 

(Cl)

405 

815 

 1,255 

1,810 

1,700 

1,440

1,270 

278' 

222 

645 

1,125 

416

179 

645 

1,190 

625 

1,070

1,670 

2,215 

495 

195

570 

855 

180 

226 

615

570

F

1 Includes discharge for Mar. 31 and Apr. 10. 2 Includes discharge for Sept. 21.
PECOS RIVER NEAR ARTESIA, N. MEX. Continue

Chemical analyses, in equivalents per million, water year October 194

Oct. 1 10, 1942. 

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

'Nov. 1 3............ ......

Nov. 4-10 . 

Nov. 11-20.. ... 

Nov. 21-30 .., 

Dec. 1-5, 7-8, 10 ......

Dec. 11-14, 17-20., - 

Dee. 21 26,28-31 .

Jan. 1-9, 1943 ....... ..

Jan. 11-13, 15-20 

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

Feb. 1-9 .. 

F

01, O1 90 OK_OO

Mar. 2-10 . _ 

Mar. 11-14, 16-18, 20.......

Mar. 21-27, 29-30 

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

Apr 1 9

Apr. 11-14, 16-17, 19-20 

Apr. 21 29- 

May 1-4, 6-10 . ... 

May 11-12, 14-20 

May 21-24, 26-31... .......

June 11-15, 17-20 

July 1-2... ................

July 3-10 ....... .......

July 11-20 

July 21 25 

July 27-31 .....

372

374

414

1,007

2,762

COS

316

osn

245

JOQ

368

"351 

340

231

135

134

110

113

Q7A

1662

224

113

71

79

QO 7

133

1 9tft

994

110

69.8

700

1,170

323

145

191

96.4

,

20.96

20.66

19.27

20.96

18.07

17.82

21.26

22.76

24.36

21.06

20.76

21.36 

21.36

23.06

27.35

27.65

26.55

27.75

28.25

21.61

24.66

27.05

30.15

28.65

27.65

29.15

''22.66

21.26

23.81

27.35

15.07

7.09

20.11

25.26

21.06

24.86

10.53

11.84

9.62

11.60

4 61

7.07

11.35

13.57

13.98

11.18

10.36

10.86 

12.09

14.14

18.17

19.24

18.91

1Q 4.Q

20.56

7.73

19 7H

16.78

20.89

20.89

17.93

17.27

6.58

5.84

10.12

13.98

6.83

3.04

10.28

16.12

9 S7

15. as

19.00

22.39

17.18

19.6

5.17

10.39

20.00

24.00

26.13

20.31

20.61 

19.83

25.53

37.00

40.22

40.35

42.61

45.48

11.57

22.74

34.70

49.27

46.79

39.83

35.40

8.87

6.87

17.39

30.02

11.4

5.26

18.50

31.79

17.74

28.52

0.41

.46

.23

4

.08

.23

.25

.25

.41

.31

.31

.28 

.20

.23

.26

.31

.33

.36

.31

.18

.28

.25

.28

.26

.26

.28

.16

.13

.14

.20

3

.21

.17

.31

.18

.18

2.02

2.00

2 31

2.75

1 90

2.25

2.62

3.11

3.07

2.82

2.97

3.15 

2.82

3.00

3.36

3.36

2.21

2.44

2.92

2.51

2 08

2.03

2.46

2.70

2.13

2.07

2.00

1.62

1.39

1.75

1.93

1.64

1.98

2.11

2.13

1.97

28.34

29.88

26.59

28.65

21.55

22.46

28.96

31.42

34.41

29.38

28.04

28.48 

29.33

33.25

40.37

41.97

41.74

43.05

44.07

27.15

34.71

40.74

47.20

45.62

42.56

43.12

27.75

25.50

31.56

37.97

19.53

8.68

28.75

37.25

29.00

36.70

20.31

23.55

17.34

20.73

4.23

10.58

20.31

25.38

30.88

25.95

20.45

&\). IO

21.15

27.64

39.34

42.31

42.59

44.42

47.38

16.64

11.42

22.99

35.40

51.05

47.95

40.61

35.82

7.84

6.26

18.19

31.73

11.73

5.05

18.19

33.56

17.63

30.18

0.05

.03

.02

.03

.02

.03

.03

.02

.04

.03

.04

.03 

.06

06

.05

.06

.04

.04

.06

.03

.03

05

.04

.05

.05

.05

.03

.03

.05

.05

.03

.02

.04

.05

.05

.06

See footnotes at end of table.
PECOS RIVER NEAR ARTESIA, N. MEX. Continue

Chemical analyses, in equivalents per million, water year October 1942 to S

Date of collection

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

Aug. 11-18 ... ........

Aug. 19-20.. ........-.

Aug. 21-31 ..'...I.... ..

Sept. 1-8, 10...... .. .......

Sept, 11, 13-14 ........ ..

Sept. 15-20.. ....... .......

Sept. 21 ..................

Sept. 22-30... .............

Mean 

discharge 

(secondfeet)

44.9 

45 9 

689 

1,075

128 

108 

= 867 

292 

138

365

Specific 

conductance 

(KXlOo 

at 

25° C.)

Silica 

(SiOi)

Iron

(Fe)

Calcium

(Ca)

28 85 

30 05 

23 81 ' 

20.91

23.26 

23.26 

20.86

22.86

21.16

Magnefium

(Mg)

19 74 

20 89 

' 9 13 

5 43

8-88 

12.25 

5.43

9 79

9 21

Sodium

(Na)

46 14

60 7 

15 2 

6 35

16 44 

24 5

5 87

16.13

16.05

Potassium

(K)

0 46 

1 

3 

09

25 

3 

.12

38

0 21

Bicarbonate 

(HCOs)

1 56 

1 62 

1 69 

1.54

1.38 

1 39 

1 70

1 79

2 18

Salfate

(S04 )

45 30 

47.53 

32.35 

25.09

30 75 

34 54 

25 17

30.06

27.98

Ohioride

(Cl)

47 10 

62 47 

13 96 

5 50

16 08 

24 11 

5 OS 

6 37 

17.34

16.08

Fluo

ride

(F)

0 05 

06 

04 

.03

.03 

04 

03

.03

0.03

1 Includes discharge for Mar, 31 and Apr. 10. 2 Includes discharge for Sept. 21.
PECOS RIVER AT CARLSBAD, N. MEX.

LOCATION. At gaging station at Green Street Bridge in Carlsbad, half a mile upstream from 

DRAINAGE AREA. 18,100 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: May 1937 to September 1943. (See table on pag

EXTREMES, 1942-43. Dissolved solids: Maximum, 3,030 parts per million Dec. 1-10; minim

Total hardness: Maximum, 1,732 parts per million Nov. 21-30; minimum, 1,292 parts per 

EXTREMES, 1937-43. Dissolved solids: Maximum, 3,590 parts per million Aug. 11-20, 1938

Total hardness: Maximum, 1,970 parts per million May 1, 1941; minimum, 290 parts per 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194® 

Date of collection

Oct. 1-10, 1942- . . .........

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

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

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

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

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

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

Dec. 11-20--......-....,..

Jan. 1-10, 1943...... ..... .

Jan. 11-20... ..............

Jan. 21-31.. . 

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

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

Feb. 21-28. ...............

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

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

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

Mean 

discharge 

(Fecondfeet)

357 

167 

271 

1,939 

754 

441

314 

249 

450 

329 

389 

240

313 

132 

120 

958 

134 

100

Specific 

conductance 

(KX105 

at 

25° C.)

342 

351

378 

363 

343 

386

388 

382 

356 

379 

391 

387

381 

361 

338 

380 

343 

332

Silica 

(Si03 )

19 

20 

21 

20 

16 

20

21 

17 

16 

16 

12 

14

13 

15

18 

16 

18

18

Iron 

(Fe)

Calcium 

(Ca)

440 

426 

459 

449 

448 

488

478 

478 

426 

444 

462 

480

470 

430 

376 

454 

- 368 

346

Magnefium

(Mg)

103 

111 

118 

103 

101 

125

121 

134 

126 

133 

134 

127

124 

124 

123 

196 

123 

122

Sodium

(Na)

Potassium

(K)

248 

276 

299 

300 

268 

302

325 

286 

277 

296 

308 

287

303 

265 

260 

399 

294 

282

Bicarbonate 

(HC03 )

139 

166 

157 

129 

137 

153

159 

160 

166 

167 

158 

153

159 

174 

188 

109 

102 

110

Sulfate 

(S04 )

1,327 

1,307 

1,430 

1,371 

1,389 

1,544

1,533 

1,508 

1,322 

1,404 

1,465 

1,473

1,467 

1,327 

1,185 

1,591 

1,291 

1,215

Chloride 

 (CD

400 

440 

470 

470 

395 

465

475 

470 

475 

495 

510 

485

485 

450 

440 

495 

450 

440

Fl

ri

(
PECOS RIVER AT CARLSBAD, N. MEX. Continu

Chemical analyses, in parts per million, water year October 1942 to Se

Date of collection

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

Apr. 11-12, 14-16, 18-20.... 

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

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

Mav 11-20-... .... __

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

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

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

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

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

JiUv 21-31... ..............

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

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

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

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

Mean 

discharge 

(secondfeet)

99.1

98.8 

98.2 

97.6 

93.7 

91.5

88.0 

88.2 

102 

151 

131 

98.8

93.6 

94.9 

96.7 

96.7 

97.0 

93.8

243

Specific 

conductance 

(KX106 

at 

25° C.)

337 

330 

336 

337 

337 

328

330 

328 

325 

330 

337 

332

334 

347 

344 

337 

347 

342

360

Silica 

(SiO»)

19 

21 

23 

21 

21 

25

24 

29 

14 

13 

11 

16

24 

22 

20 

19 

19 

25

IS

Iron

(Fe)

Calcium 

(Ca)

350 

342 

349 

353 

352 

343

348 

335 

356 

383 

377 

367

340 

357

365 

351

430

Magnesium

(Mg>

124 

118 

119 

117 

116 

111

109 

111 

103 

100 

105 

109

113 

121

118 

114 

117 

118

115

Sodium 

(Na)

Potassium

(K)

297 

289 

289

288 

288 

288

285 

288 

275 

267 

279 

273

302 

309 

316 

299 

311 

306

292

Bicarbonate 

(HC03)

116 

112 

139 

152 

166 

124

170 

98 

138 

144 

162 

182

113 

149 

130 

141 

183 

143

144

Sulfate

(S04)

1,241 

1,198 

1,203 

1,200 

1,182 

1,169

1, 138 

1,177 

1,156 

1,175 

1,179 

1,162

1,190 

1,221 

1,225 

1,192 

1,210 

1,208

1,360

Chloride 

(CD

455 

445 

440 

435 

435 

438

432 

432 

418 

428 

435 

422

450 

470 

' 475 

450 

465 

460

458

Fl

ri

(

Chemical analyses, in equivalents per million, ivater year October 1

Oct. 1-10, 1942.... ........

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

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

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

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

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

357 

167 

271 

1,939

754 

441

21.96 

21.26 

23.91 

22.41 

22.36 

24.36

8.47 

9.13 

9.70 

8.47 

8.31 

10.28

10.78 

11.98 

13.01 

13.04 

11.66 

13.15

2.28 

2.72 

2.57 

2.11 

2.25 

2.51

27.63 

27.21 

29.77 

28.54 

28.92 

32.15

11.28 

12.41 

13.26 

13.26 

11.14 

13.11
Dec. 1-10......... .......

Dec. 11-20................

Dec. 21-31.. ..............

Jan. 1-10, 1943.... ........

Jan. 11-20.................

Jan. 21-81.. _ . _ ......

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

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

Feb. 21-28.:........ ......

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

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

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

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

Apr. 11-12, 14-16, 18-20---.

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

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

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

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

June 21-30. ...............

Julvl-10 ............

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

July 21-31....... ..........

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

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

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

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

Sept. 11-20-...... .... .

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

314

249

450

329

389

240

313

132

120

258

134

100

99.1

98.8

98.2

97.6

93.7

91.5

88.0

88.2

102

151

131,

98.8

93.6

94 9

96 7

96.7

97.0

63.8

243

3.86

3.86

2I-. 26

22.16

23.0*5

23.96

23.46

21.46

18.77

22.66

18.37

17.27

17.47

17.07

17.42

17.62

17.57

17.12

17.37

16.72

17.77

19.12

18.82

18.32

16.97

17.82

17.67

17.52

18.22

17.52

21.46

9.95

11.02

10.36

10.94

11.02

10.44

10.20

10.20

10.12

10.36

10.12

10.03

10.20

9,70

9.79

9.62

9.54

9.13

8.96

fl.13

8.47

8.22

8.63

8.96

9,29

9 95

9.70

9 37

9.62

9.70

9.46

14.14

12 42

12.04

12.85

13.41

12.48

13.19

11 53

11.30

14.31

12.78

12.24

12.93

12 58

12.56

12.54

12.52 I 1) U

12.39

12.51

11.94

11.60

12.12

11.85

.13.13

13.43

13.75

13.00

13.53

13.31

12.70

2.61

2.62

2.72

2.74

2.59

2.51

2.61

2.85

3.08

1.67

1.67

1.80

1.90

1.84

2.28

2.49

2.72

2.03

2.79

1 61

2.26

2 36

2.66

2 98

1.85

2.44

2.13

2.31

3.00

2.34

2.36

31.92

31.40

27.52

29.23

30.50

80.67

30.54

27.63

24.67

31.67

26.88

OK on

25.84

24.94

25.05

24.99

24.61

24.34

23.69

24.50

24 07

24.46

24.55

24.19

24.78

25.42

25.50

24.82

25.19

25.15

28.31

13.40

13 26

13 40

13.96

14.38

13.68

13.68

12.69

12.41

13.96

12.69

12.41

12.83

12.55

12.41

12.27

12.27

12.35

12.18

12.18

11 79

12.07

12.27

11.90

12.69

13.26

13.40.

12.69

13.11

12.97

12.92
PECOS RIVER NEAR MALAGA, N. MEX.

LOCATION. Two and one-half miles upsteam from gaging station, which is located 3 miles 

Black River.

DRAINAGE AREA. 19,190 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1943. (See table on pag

EXTREMES, 1942-43. Dissolved solids: Maximum, 4,230 parts per million Aug. 11-20; mini

Total hardness: Maximum, 2,026 parts per million Aug. 1-10; minimum, 1,484 parts per 

EXTREMES, 1937-43. Dissolved solids: Maximum, 4,830 parts per million Aug. 11-20, 1938

Total hardness: Maximum, 2,170 parts per million Apr. 21-30, 1939; minimum, 536 parts 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-10, 1942.... ........

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

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

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

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

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

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

Dee. 11-20. ............ ...

Dec. 21-31................

Jan. 1-10, 1943............

Jan. 11-20... .......... ...

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

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

Feb. 11-20. ____._._:. __

Feb. 21-28.......... ...

Mar. 1-3, 7-10....... ......

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

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

Mean 

discharge 

(secondfeet)

582 

308 

397 

2,043

884 

548

425 

421 

581 

403 

494 

320

384 

236 

186 

323 

218 

123

Specific 

conductance 

(KX1G5 

at 

25° C.)

400 

437 

441 

404 

368 

407

443 

433 

407 

426' 

416 

436

426 

452 

474 

427 

450 

 506

Silica 

(SiOa)

17 

18 

16 

21 

18 

21

22 

16 

11 

16 

1« 

14

16 

16 

15. 

15 

15 

15

Iron

(Fe)

...._

.....

Calcium 

(Ca)

468 

474 

466 

468 

440 

478

496 

494 

468 

462 

474 

466

476 

496 

484 

458 

500 

502

Magnenum

(Mg)

120 

158 

159 

116 

110 

132

146 

148 

138 

147 

138 

142

138 

146 

160 

149 

144 

163

Sodium

Wa)

Potassium 

(K)

340 

362 

373 

368 

313 

350

390 

366 

353 

392 

371 

414

' 385 

411 

452 

404 

433 

526

Bicarbonate 

(HCOs)

139 

157 

134 

141 

146 

159

166 

164 

161 

172 

168 

174

170 

166 

170 

136 

143 

150

Sulfate 

(SQO

1,463 

1,505 

1,531 

1,485 

1,398 

1,533

1,615 

1,597 

1,503 

1,495 

1,516 

1,537

1,549 

1,592 

1,613 

1,567 

1,664 

1,700

Chloride 

(Cl)

540 

655 

655 

555 

465 

545

615 

595 

570 

645 

595 

640

595 

665 

730 

630 

660 

830

F

r
Apr. 1-10. _ ......... ..

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

Apr. 21-30... __. ....... _ May 1-6 ..............

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

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

July 1-10

Julv 11-20 -_.--------...

July 21-31.. ...............

Aug. 1-10 . _- 

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

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

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

Sept. 11-20- -- 

Sept. 21-30

131

132

137

'174

= 148

137

177

208

360

280

145

110

112

124

177

144

173

326

503

516

523

516

494

510

505

504

397

419

498

548

573

565

538

555

532

438

15

18

19

20

26

21

23

24

19

21

22

27

27

24

22

22

20

19

486

' 468

480

480

445

469

474

476

382

412

458

530

436

490

486

498

490

469

169

173

183

177

166

169

164

164

129

131

159

171

183

178

176

178

175

141

520

547

522

530

557

566

524

504

361

386

521

564

717

649

593

629 -

575

410

154

135

149

172

101

139

105

129

139

148

156

109

110

125

161

171

152

150

1,664

1,674

1,684

1,679

1,630

1,669

1,628

1.613

1,256

1,335

1,551

1,719

1,773

1,755

1,714

1,750

1,717

1,540

835

860

855

S4fl

865

880

860

s^n

597

632

840

970

1,035

1,015

925

975

905

See footnotes at end of table.

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1942. . -

Oct. 11-20 . _-...

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

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

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

Nov. 21-50..... ...........

Dec. 1-10 . ... 

Dec. 11-20.. -,-.-,.

Dec. 21-31

Jan. 1-10, 1943.............

Jan. 11-20......--- _ .....

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

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

Feb. 11-20

Feb. 21-28 . -..--...-

Mar. 1-3, 7-10 . .

Mar.11-20 .... -

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

532

308

397.

2,043

884

548

425

421

581

403

494

320

384

236

186

323

218

123

23.36

23.66

23.26

23.36

21.96

23.86

24.76

24.66

23.36

23.06

23.66

23.26

23.76

24.76

24.16

22.86

24.96

25.06

9.87

12.99

13.08

9.54

9,05

10.86

12.01

12.17

11.35

12.09

11.35

11.68

11.35

12.01

13.16

12.25

11.84

13.40

W 78

15.76

16 23

16.01

13.63

15.20

16.94

15.93

15,34

17.03

16.12

n QQ

16.73

17.88

19.67

17.55

18.83

22.86

2.57

2.20

2.31

2 39

2

01

2 72

2,69

2

£tA

2,82

2,75

2 s*

Q *76

2.72

2,79

2.23

2.34

2.46

30.46

31.33

31 S7

OA QO

29.11

oi 09

33.62

33.25

31 90

31.13

31.56

39 nn

09 9£

33.14

33.58

32.62

34.64

35.39

15.23

18,47

18.47

15.65

13.11

15.37

17.34

16.78

16.08

18.19

16.78

16.78

1.8.76

20,59

17.77

18.61

23.41
PECOS RIVER NEAR MALAGA, N. MEX. Continu

Chemical analyses, in equivalents per million, water year October 194$ to 

Date of collection

Apr 1-10-- : 

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

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

May 1-6.. ................

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

June 21-30 ______ .....

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

July 11-20 

July 21-31....... ..........

Aug. 1-10-. .

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

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

Fept. 1-10-...... ..

Sept. 11-20 ...........

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

Mean 

discharge 

(secondfeet

131 

132 

137 

il74

2 148

137 

177 

208 

260 

280 

145

110 

112 

124

177 

144 

172

326

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(SiOj)

«

Iron 

(Fe)

Calcium 

(Ca)

24.26 

23.36 

23.96 

23.96 

22.21

23.41 

23.66 

23.76 

19.07 

20.58 

22.86

26.45 

21.76 

24.46 

24.26 

24.86 

24.46

23.41

Magnesium

(Mg)

13.90 

14.23 

15.05 

14.56 

13.65

13.90 

13.49 

13.49 

10.61 

10.77 

13.08

14.06 

15.05 

14.64 

14.47 

14.64 

14.39

11.60

Sodium 

(Na)

Potassium 

(K)

22.63 

23.78 

22.68 

23.03 

24.23

24.60

22.78 

21.92 

15 69 

16.78 

22.67

24.54 

31.19 

28.23 

25 80 

27.33 

25.02

ir.83

Bicarbonate 

(HCOs)

2.52 

2.21 

2.44 

2.82 

1.66

2.28 

1.72 

2.11 

2.28 

2.43 

2.56

1.79 

1.80 

2.05 

2.64 

2.80 

2.49

2.46

Sulfate

(S04)

34.64 

34.85 

35.06 

34.96 

33.94

34.75 

33.89 

33.58 

26.15 

27.79 

32.29

35.79 

36.91 

36.54 

35.68 

36.43 

35.75

32.04

Chloride 

(Cl)

23.55 

24,25 

24.11 

23.69 

24.40

24.82 

24.25 

23.41 

16.84

17.82 

23.69

27.36 

29.19 

28.63 

26.09 

27.50 

25.52

18.30

Fl

ri

(

1 Includes discharge for May 7-20; no samples for May 7-20. * Includes discharge for May 21-23; no samples for 
PECOS RIVER AT RED BLUFF, N. MEX.

LOCATION. At pipe-line bridge, 2J^ miles downstream from Red Bluff gaging station, which 

and &/<£ miles upstream from Delaware River.

DRAINAGE AKEA. 19,540 square miles above gaging station (contributing area).

RECORDS AVAILABLE. Chemical analyses: October 1937 to September 1943. (See table on 

EXTREMES, 1942-43. Dissolved solids; Maximum, 6,350 parts per million Aug. 11-20; min

Total hardness: Maximum, 2,126 parts per million Aug. 11-20; minimum, 1,368 parts per 

EXTREMES, 1937-43. Dissolved sojids: Maximum, 8,140 parts per million July 1-10, 1937; 

Total hardness: Maximum, 2,310 parts per million July 1-10, 1937; minimum, 302 parts 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, ivater year October 19J

Date of collection

Oct. 1-10, 1942.............

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

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

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

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

Nov. 21-30.' - 

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

Dec. 11-20---..........-..

Dec. 21-31...... ..........

Jan. 1-10, 1943.... ....

Jan. 11-20 ............

Jan. 21-Sl .... ..........

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

Feb. 12-20... ^.. ..........

Feb. 21-27--.- ... ..

Mar. 1-10 _, ____ .....

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

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

Mean 

discharge 

(secondfeet)

556 

299 

388 

2,010- 

908 

559

445 

443 

578 

378 

515 

316

388 

241 

172 

299 

220 

130

Specific 

conductance 

(KX108 

at 

25° C.)

463 

570 

540 

418 

391 

479

524 

526 

486 

576 

480 

541

516 

578 

687 

553 

595 

746

Silica 

(SiOs)

22 

22 

22 

20 

15 

17

17 

16 

26 

' 17 

14 

15

18 

14 

14 

19 

18 

17

Iron 

(Fe)

0.02 

.03 

.02 

.04 

.04 

.04

.04 

.04 

.03 

.03 

.04 

.02

.02 

.03 

.02 

.04 

.04 

.04

Calcium 

(Ca)

448 

464 

452 

456 

438 

478

496 

496 

460 

456 

464 

470

476 

500 

496 

454 

496 

506

Magnesium 

(Mg)

131 

151 

154 

116 

105 

126

145 

146 

129 

144 

134 

150

147 

150 

163 

152 

150 

169

Sodium

(Na)

496 

688 

642 

397 

365 

507

571 

592 

549

727 

527 

622

556 

685 

S93 

644 

718 

1,033

Potassium 

(K)

16 

16 

13 

24 

14 

19

21 

14 

13 

14 

13 

14

13 

15 

20 

19 

20 

23

Bicarbonate 

(HCOs)

117 

129 

146 

136 

122 

144

163 

160 

132 

154 

151 

155

149 

155 

157 

121 

126 

129

Sulfate 

(SCM

1,514 

1,590 

1,584 

1,468 

1,393 

1,524

1,633 

1,666 

1,557 

1,564 

1,562 

1,577

1,593 

1,661 

1,715 

1,570 

1,684 

1,788

Chloride 

(Cl)

755 

1,090 

990 

635 

560 

800

895 

895 

815 

1,110 

785 

985

885 

1,070 

1,415 

1,025 

1,135 

1,635

F

r
PECOS RIVER AT RED BLUFF, N. MEX. Continu

Chemical analyses, in parts per million, water year October 1942 to Sep

Date of collection

Apr. 1-10-.-- -

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

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

May 1-10-- 

May 11-20.- 

May 21-31. 

June 1-10. .

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

June 21-30: 

July 1-5, 7-10.- 

July 11-20 --... .

July 21-31 

Aug. 1-3. - 

Aug. 4-10-..---- _..

Aug. 11-20-- - 

Aug. 21-31- . . . 

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

Sept. 11-20 -

Sept. 21-30- - 

Mean 

discharge 

(secondfeet)

135 

136 

133 

156 

167 

156

142 

174 

203 

314

288 

143

1 102 

98.9 

115 

167 

151 

173

327

Specific 

conductance 

(KX106 

at 

25° C.)

781 743 

758 

736 

691 

675

733 

679 

671 

444 

515 

644

800 

782 

912 

844 

755 

' 747 

702

516

Silica 

(SiOj)

16. 

18 

18 

20 

17 

18

16 

18 

22 

-19 

16 

22

25 

23 

23 

16 

16 

7.0

18

Iron

(Fe)

0 05 

.03 

.04 

.03 

.03 

.02

.02 

.02 

.02 

.02 

.02 

.02

.03 

.03 

04 

.04 

04

0.03

Calcium

(Ca)

488 

474 

478 

488 

486 

460

484 

4S4 

460 

344 

398 

432

480 

506 

510 

500 

500 

484

463

Magnesium 

(M«)

179 

194 

192 

195 

196 

175

192 

181 

173 

124 

136 

155

193 

210 

204 

197 

195 

182

143

Sodium

(Na)

1,094 

1,022 

1,038 

999 

903 

903

1,030

888 

872 

502 

610 

841

1,130 

1,397 

1,238 

1,053 

1,050 

932

631

Potassium 

(K)

26 

22 

22 

 23 

18 

21

25 

32 

30 

15 

18 

30

29

37 

27 

27 

24 

26

19

Bicarbonate 

(HCOs)

146 

105 

113 

128 

149 

111

125 

105 

73 

92 

106 

115

46 

66 

94 

112 

140 

83

131

Sulfate 

(S04)

1,753 

1,784 

1,809 

1,799 

1,765 

1,709

1,799 

1,723 

1,699 

1,182 

1,371 

1,511

1,819 

1,941 

1,909 

1,842 

1,827 

1,789

1,580

Chloride 

(CD

1,745 

1,610 

1,650 

1,600 

1,440 

1,455

1,615 

1,415 

1,395 

810 

985 

1,355

1,830

1,770 

2,205 

1,950 

1,655 

1,645 

1,495

980

Flu

rid

(F

0

1 

1 

0

1 Includes discharge for Aug. 1-3,

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1943 ,

Oct. 11-20 -

Oct. 21-31 .

Nov. 1-10 . 

Nov. 11-20 ... ... 

Nov. 21-30 _

556

299

388

2,010

908-

559

22.36

23.'16

22.56

22.76

21.86

23.86

10.77

12.42

12.66

9.54

8.63

10.36

21.57

29.92

27.92

17.26

15.87

22.05

0.41

.41

.33

.61

.36

.49

1.92

2.11

2.39

2.23

2.00

2.36

31.52

33.10

32.98

30.56

29.00

31.73

21.29

30 74

27.92

17.91

15.79

22.56

0 

.

.

.

.0

.0
Dec. 1-10.. ...............

Dec. 11-20..-... ...

Dec 21-31--. 

Jan. 1-10, 1943............

Jan. 11-20.... _

Jan. 21-31... :._ . 

Feb. 1-10---. .

Feb. 12 -20.-- . . '..

Feb. 21 27... 

Mar. 1-10 

Mar. 11-20 

Mar.21-31 .... ..

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

Apr. 11-20-- .- .

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

May 1-10------ -

Mav 11-20.. ... .. 

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

July 1-5, 7-10.. 

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

July 21-31 . ....... ......

Aug. 1-3 

Aug. 4-10 - ..__....

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

Aug. 21-31. , ..

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

Sept. 11-20 

445

443

578

378

515

316

388

241

172

299

220

130

135

136

133

156

167

156

142

174

203

314

288

143

U02

98.9

115

167

151.

173

327

24.76

24.76

22.96

22.76

23.16

23.46

23.76

24.96

24.76

22.66

24.76

25.26

24.36

23.66

23.86

24.36

24.26

22.96

24.16

24.16

22.96

17.17

19.87

21.56

23.96

25.26

25.46

24.96

24.96

24.16

23.11

11.92

12.01

10.61

11.84

11.02

12.34

12.09

12.34

13.40

12.50

12.34

13.90

14.72

15.95

15.79

16.04

16.12

14.39

15.79

14.88

14.23

10.20

11.18

12.75

15.87

17.27

16.78

16.20

16.04

14 97

11.76

24.83

25.74

23.87

31.61

22.92

27.95

24.18

29.79

38.83

28.00

31.22

44.92

47.57

44.44

45.14

43.44

39.27

39.27

44.79

38.61

37.92

21.83

26.53

36.56

49.14

60.75

53.83

45.79

45.66

40.53

97 4.4

.54

.36

.33

.36

.33

 .36

.33

.38

.51

.49

.51

.59

.67

.56

.56

.59

.46

.54

.64

.82

.77

.38

.46

.77

.74

.95

.69

.69

.61

.67

0 40

2.67

2.62

2.16

2.52

2.48

2.54

2.44

2.54

2.57

1.98

2 07

2.11

2.39

1.72

1.85

2.10

2.44

1.82

2 05

1.72

1.20

1 51

1.74

1.88

.75

1.08

1 54

1.84

2.29

1.36

2.15

34 00

34.69

32.42

32.56

32.52

32.83

33 17

34.58

35.71

32.69

35.06

37.23

36.50

37.14

37.66

37.45

36.75

37.45

35 87

35.37

24 61

28.54

31.46

37.87

39.74

38 35

38.04

37.25

32.79

25.24

25.24

22.99

31.31

22.14

27.78

24.96

30.18

39.91

28 91

32.01

46.11

49.21

45 41

46.54

45.13

40.61

41.04

45.55

39.91

39.34

22.84

27.78

38.22

51.61

49.92

62 19

55 00

46.68

46 39

42.16

97 fii

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

f

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

0.0

includes i'scharge for Aug. 1-3.
PECOS RIVER NEAR ORLA, TEX.

LOCATION. Aty gaging station 600 feet upstream from Pasotex pipe-line crossing, 6 miles southe

bean) Draw, and 19 miles downstream from Red Bluff Dam.

DEAINAGE AEEA. 21,300 square miles (contributing area).

RECORDS AVAILABLE. Chemical analyses: July 1937 to September 1943. (See table on page 

EXTREMES, 1942-43. Dissolved solids: Maximum, 4,570 parts per million Sept. 21-30; mini

Total hardness: Maximum, 2,052 parts per million Sept. 21-30; minimum, 1,722 parts per 

EXTREMES, 1937-43. Dissolved solids: Maximum, 7,980 parts per million Mar. 11-20, 1941; 

Total hardness: Maximum, 2,970 parts per million Mar. 11-20,, 1941; minimum, 930 parts 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194% 

Date of collection

Oct. 1 10, 1942. ...........

Oct. 11-12, 14-20..........

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

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

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

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

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

Dec. 11-20.-...... ...

Dec. 21-31----... .... ....

Jan. 1-10, 1943.... .....

Jan. 11-20 ..............

Jan. 21-30 .. _ .........

Feb. MO... _ ..__..._ ...

Feb. 11-19..,.. ...........

Feb. 20-28.. ..............

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

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

Mar. 21-30.. ...........

Mean 

discharge 

(secondfeet)

538 

478 

357 

1,260 

1,044 

528

471 

459 

497 

582 i 

395 

'314

181 

170 

177 

157 

18S 

«293

Specific 

conductance 

(KX10» 

at 

25° C.)

489

487 

4S9

485 

477 

485

491 

494 

494 

480 

504 

497

501 

507 

504 

520 

514 

502

Silica 

(SiOs)

25 

22 

18 

21 

19 

19

17 

15 

15 

18, 

22 

15

22 

18 

li) 

16 

15 

15

Iron

(Fe)

0.10 

.05 

.06 

.10 

.15 

>.10

.05 

.10 

.05

t

.15

.05 

.05 

.10 

.10 

.05 

.05

Calcium 

(Ca)

476 

476 

490

48& 

480 

496

494 

492

488 

484 

ISO 

484

494 

502 

500 

514 

508 

500

Magnesium

(Mg)

130 

134 

135 

135 

134 

135

152 

151 

154 

128 

132 

132

142 

142 

142 

138 

135 

138

Sodium

(Na)

552 

510 

545 

491 

507 

497

439 

448 

449 

501 

552 

547

541 

534 

539- 

574 

566 

545

Potassium

(K)

22 

19 

21 

19 

18 

18

19 

21 

20 

19 

22 

18

20

21 

20 

19

18 

17

Bicarbonate 

(HCOa)

124 

123 

125 

112 

115 

118

130 

130 

130 

131 

132 

134

121

122 

128 

124 

128 

129

Sulfate 

CS04)

1,558 

1,577 

1,579 

1,590 

1,605 

1,618

1,590 

1,564 

1,552

1,588 

1,588 

1,615

1,638 

1,643 

1,635 

1,709 

1,681 

1.669

Chloride 

(Cl)

845 

815 

835 

790 

785 

790

760 

790 

800 

770 

855 

830

860 

860 

865 

880 

- 865 

835

Flu

rid

(F

0

1
Apr. 1-10.. _ 

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

Apr. 21-30....:.. ____ .

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

May 11-13, 20.. ........

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

June 1-10 __ . __ '. .......

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

June 21-30 ................

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

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

July 21-31..... .........

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

Aug.*ll-20-_ . . --.-. ..

AugM-24, 26-3J 

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

Sept. 11-20 

Sept. 21-30 

479

610

402

409

370

* 238

298

331

280

249

408

705

612

695

672

371

98.8

79.1

428

501

509

511

519

552

581

537

544

547

541

537

540

542

551

559

582

802

61S

515

22

16

13

15

12

10

21

18

24

25

23

25

22

19

19

18

10

20

10

.05

.05

.05

.05

.05

.05

.10

.10

.10

.05

.10

.05

.10

.05

.05

.10

.05

.10

0.08

500

502

512

500

ZC\R

514

502

514

522

4QS

502

508

502

500

516

530

534

552

498

135

135

135

132

139

143

142

142

142

IdQ

148

149

154

154

156

158

164

142

510

KOQ

530

555

618

675

595

<$nn

KQ7

623

ftrtd

coo

593

653

661

674

716

733

KKA

17

17

17

IS

91

17

ia

22

99

20

21

in

24

18

91

22

99

22

20

* QQ

123

OS

QQ

121

74

109

QQ

iftd

120

82

85

104

105

ins

117

114

1,612

1,630

1,623

1,633

I

esrj-t

1 P.Q4

1,695

1,710

1,700

1,710

1,715

1 797

1,712

1,742

1,755

1 filQ

1

O7K

1

OQQ

1,650

830

840

Sftrt

875

osn

1,060

Qdn

940

950

nen

935

ftOR

950

965

oon

1 040

i nan

1,130

fi79

See footnotes at end of table.

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1942. ____ 

Oct. 11-12, 14-20 

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

Nov.l 10 

Nov. 11-20 

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

TV,., i_in

Dec. 11-20. ...............

Dec. 21-31-.. __ . ___ .

Jan. 1-10,1943 

Jan. 11-20 ..............

.Tan. 9,1-30.................

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

Feb. 11 19--. 

Feb. 20-28. ...............

Mar. 1-10 . 

iOr«i- 11 9(1

Mar. 21-30... ..... 

538

d.78

357

1,260

1 044

528

471

459

497

532

395

tIA.

181

170

177

157

188

2 293

23.76

23.76

24.46

24.36

23.96

24.76

24.66

24.56

24.36

24.16

23.96

24.16

24.66

25.06

24.96

25.66

25.36

24.96

10.69

11.02

11.10

11.10

11.02

11.10

12.50

12.42

12.66

10.53

10.86

10.86

11.68

11.68

11.68

11.35

11.10

11.35

24.00

22.18

23.70

21.33-

22.06

21.62

19.07

19.50

19.52

21.78

23.99

23.78

23.53

23.23

23.43

24.96

24.62

23.71

0.56

.49

.54

.49

.46

.46

.49

.54

.51

.49

.56

.46

.51

.54

.51

.49

.46

.43

2.03

2.02

2.05

1.84

1.88

1.93

2.13

2.13

2.13

2.15

2.16

2.20

1.98

2 00

2.10

2.03

2.10

2.11

32.44

32.83

32.87

33.10

33.42

33.69

33.10

32.56

32.31

33.06

33.06'

33.62

34.10

34.21

34.04

35.58

35.00

34.75

23.83

22.99

23.55

22.^8

22.14

22.28

21.43

22.28

22.56

21.72

24.11

23.41

24.25

24.25

24.40

24.82

24.40

23.55

0
PECOS RIVER NEAR ORLA, TEX. Continued

Chemical analyses, in equivalents per million, water year October 1942 to Sep

Date of collection

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

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

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

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

May 11-13, 20-.. ... ... .

May 21-31.. 

Junel-10.. ________

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

July 1-10... 

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

July 21-31.........-. ...

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

Aug. 11-20. ... 

Aug. 21-24, 28-31- -

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

Sept. 11-20........... 

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

Mean 

discharge 

(secondfeet)

479 

610 

402 

409 

370 

238

298 

331 

280 

249 

408 

705

612 

695 

872 

371

98.8

79.1

428

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(BMW

Iron 

(Fe)

Calcium 

(Ca)

24.96 

25.06 

25.56 

24.96 

25.26 

25.66

25.06 

25 66 

26.05 

24.86 

25.06 

25.36

25.06 

24.96 

25.76 

26.45 

26.65 

27.55

24.86

Magnesium 

(Mg)

11.10 

11.10 

11.10 

10.86 

11.43 

11.76

11.68 

11.68 

11.68 

12.25 

12.17 

12.25

12.66 

12.66 

12.83 

12.99 

13.40 

13.49

11.68

Sodium

(Na)

22.19 

22.94 

23.03 

24.12 

26.89 

29.36

25.88 

26.08 

25.97 

27.09 

26.26 

27.05

25.79 

28.39 

28.74 

29.31 

31.13 

31.87

24.09

Potassium 

(K)

0.43 

.43 

.43 

.46 

.54 

.43

.46 

.56 

.56 

.51 

.54 

.49

.61 

.46 

.54 

.56

.56 

.56

0..51

Bicarbonate 

(HCO.)

1.62 

1.84 

2.02 

1.61 

1.62 

1.98

1.21 

1.79 

2.02 

1.61 

1.70 

1.97

1.34 

1.39 

1.70 

1.72 

1.77 

1.92

1.87

Sulfate 

(SO*)

33.56 

33.94 

33.79 

34.00 

34.79 

35.27

35.29 

35.60 

35.39 

35.60 

35.71 

35.96

35.64 

36.27 

36.54 

37.87 

39.04 

39.41

34.35

Chloride 

(Cl)

23.41 

23.69 

24.25 

24^68 

27^64 

29.90

26.51 

26.51 

26.79 

26.79 

26.37 

26.37

26.79 

27.22 

27.92 

29.33 

30.74 

31.87

24.59

Flu

rid

(F

0.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

0.0

1 Includes discharge for Jaa, 21-31. 2 Includes discharge for Mar. 21-31.
CARLSBAD PROJECT MAIN CANAL NEAR CARLSBAD, 

LOCATION. At head of Carlsbad project main canal at Avalon Dam, 5 miles north of Carlsba

RECORDS AVAILABLE. Chemical analyses: February 1939 to September 1943. (See table o

EXTREMES, 1942-43. Dissolved solids: Maximum, 4,260 parts per million June 11-20; mini

Total hardness: Maximum, 2,228 parts per million June 11-20; minimum, 1,596 parts per 

EXTREMES, 1939-43. Dissolved solids: Maximum, that of June 11-20, 1943; minimum, 568 

Total hardness: Maximum, that of June 11-20, 1943; minimum, 324 parts per million Oc

Chemical analyses, in parts per million, water year October 194

' Date of collection

Oct. 1-10,1942.............

Oct. 11-20. .. 

Oct. 21-26, 29-30.--- .

Oct. 27, 31. ---_..-.. 

Nov. 1-10 

Nov. 11-15, 17-20 

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

Dec. 1-10-.-. -

Dec. 11.. .. . -

Dec. 12-20... ... ... .

Dec. 21-22.. ...... 

Dec. 23-31.... 

Jan. 1-10, 1943.... ........

Jan. 11-20-. ........

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

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

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

Feb. 21-23. ...............

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

Mar. 1-7, 9-10 

Mar. 11-20 . 

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

Mean 

discharge 

(secondfeet)

"

Specific 

conductance 

(KXW 

at 

25° C.)

354 

377 

401 

410 

368 

332 

400

410 

410 

406 

395 

392 

408 

412 

412

412 

410 

408 

409 

433 

410 

413

Silica 

(SiOa)

18 

18 

19

16

14

14 

20

Iron 

(Fe)

Calcium 

(Ca)

478 

492 

524

528 

514

524 

532

536 

534

Magnesium 

(Mg)

98 

108 

116

118 

116

126 

126

122 

121

Sodium

(Na)

Potassium

(K)

271 

293 

322

- 332 

323

317 

319

342 

351 -

Bicarbonate 

(HCOs)

124 

123 

128

i§i

128

134 

134

100

87

Sulfate 

(804)

1,444 

1,518 

1,607

1,656 

1,626

1,625 

1,656

1,717 

1,710

Chloride 

(CD

410 

445 

500

490 "470

505 

500

505- 

525

F

r
CARLSBAD PROJECT MAIN CANAL NEAR CARLSBAD, N. M

Chemical analyses, in parts per million, water year October 1942 to Se

Date of collection

Apr. 1-10.... _ .. __ ...

Apr. 11-18, 20. ______ .

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

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

MsyAl-20... .-. .. ....

May 21- 31.. __ ... _ ,_.

June 1-10..... __ . _ ...

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

July 7-10... ..............

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

July 21-31 _ ...... ........

Aug.11-20. ...

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

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

Sept. 11-20..... ....__ 

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

Mean 

discharge 

(secondfeet)

Specific 

conductance 

(KX106 

at 

25° C.)

464 

475 

456 

472 

478 

443

546 

552 

462 

267 

393 

432 

452

466 

462 

465 

442 

383 

434 

420

Silica 

(SiOa)

15 

14 

18 

16 

14 

12

12 

11 

15

10 

12 

11

15 

14 

15 

14 

14 

19

Iron 

(Fe)

Calcium 

(Ca)

534 

526 

532 

548 

562 

548

605 

624

576

486 

528 

554

524 

516 

528 

510 

548 

540

Magnesium 

iMg)

144 

145 

131 

135 

135 

124

160 

163 

133

110 

125 

131

139 

137 

130 

111 

127 

122

Sodium

lisa)

Potassium 

(K)

414 

452 

428 

456 

452 

409

562 

540 

437

326 

417

3S5

413 

434 

381 

291 

359 

341

Bicarbonate 

(HCOs)

96 

111 

87 

104 

103 

115

116 

110 

94

130 

126 

124

103 

104 

112 

108 

113 

105

Sulfate 

(S04)

1,730 

1,735 

1,719 

1,766 

1,799 

1,712

1,970 

1,977 

1,852

1,440 

1,695 

1,669

1,684 

1,689 

1,679 

1,579 

1,719 

1,671

Chloride 

(CD

670 

705 

662 

700 

695 

630

880 

885 

655

540 

615 

650

695 

660 

668 

592 

445 

558 

540

Fl

r

(

Chemical analyses, in equivalents per million, water year October 1

fH. t-lfl 104?

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

Oct. 21-28, 29-30 ___ . ...

Oct. 27, 31.. ..............

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

Nov. 11-15, 17-20. ___ ..

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

23.86

24. .6

26.15

8.06

8.88

9.54

11.77

12.75

13.99

2.03

2.02

2.10

30.06

31.60

23.46

11.56

12.65

14.10

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

Dec. 11 ... 

Dee. 12-20. _ .. _

Dec. 21-22.. 

Dee. 23-31. ....... -

Jan. 1-10, 1943 . 

Jan. 11-20 

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

Feb. 11-20.. 

Feb. 21-23-.. . .

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

Mar. 1-7, 9-10 

Mar. 11-20 

Mar. 21-31. _ __» ____ -

Apr. 1-10 

Apr. 11-18, 20 . 

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

May 1-10. 

May 11-20 

May 21-31 ....... 

June 11-20 

June 29-30, July 1-6 . __

July 7-10..... _ . __ 

July 11 20... 

July 21-31 

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

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

Aug. 11-20. .

Aug. 21-31 

Sept. 1-10- ___ 

Sept." 11-20 

Sept. 21-30. __ ... ___ .

-...,.

26.35

25.66

26.15

26.55

26.75

26.65

26.65

26.25

26.55

27.35

28.05

O7 QK

30.20

31.15

28.75

24.26 

26.35

O*7 AR

26.15

nc fjf

26.35

25.46 

27.35

26.95

.7

9.54

10.36

10.36

10.03

9.95

11.84

ill 92

10.77

11.10

11.10

10.20

13.16

i? 4n

10.94^

9.05 

in 9St

10.77

11.43 U 97

10.69

9.13 

10.44

10.03

14.43

14.03

13.77

 fQ QQ

14.89

15.27

10 AO

19.67

1(2 CO

tQ R7

17 79

24 44

OQ *Q

1C QQ

14.16

1C 1 A

16.72

17.97

16.58

12 67 

15 63

14.82

_

2.15

2.10

2 20

12.20

1 64

1.43

1 57 I

nO

1 43

r?o 1 69 I

Qfi

1 90 1

QA

1 S4

2.13

9 H7 2

AQ

1.69 

1.70

1.84

1.77 

1.85

1.72

34.48

33.85

33.83

34.48

35.75

35.60 MM* 

36.02"

36.12

35.79!

36.77

37.45

35.64

»P>* 

41.01

41.16

38.56

29 98 

35.29

34.75

** 

35 06 

35.16

34 96

O^.OI

35.79

34. 79^

13.82

13.26

14.24

14.10

14.24

14.81

18.90

19.88

18.67

19.74

19.60

17.77

f)

Jit. O

15.23

LO .00

19.60

18.61

1Q QA

16.70

12.55 

15 74

15.23
REFINERY INTAKE CANAL NEAR LOVING, N. ME

[Weekly samples taken from canal in sec. 13, T. 23 S., R. 28 E., representing w

diverted from the Pecos River at the dam in sec. 11, T. 23 S. 

Date

1941

Oct. 9........

Oct. 16 

Oct. 23.......

Nov. 6.......

Nov. 13......

Nov. 20......

Nov. 27..... .

Dec. 11 

Dec. 18 

Dec. 24-.-...

1942

Jan. 1.......

Jan. 22. ...

Feb. 5 ...

Feb. 12.. ....

Specific 

conductance 

(K+106 

at 25° C.)

208

OCR

364

374

324

369

391

423

410

423

197

431

431

443

485

453

420

503

Chloride 

(Cl, 

p.p. m)

ion

260

446

490

334

4>i>>

505

520

620

595

605

GA(\

650

630

660

770

675

570

780

810

Date

194S 

Feb. 19......

Mar. 5 

Mar. 12 

Mar. 19 

Mar. 26 

Apr. 2 .

Apr. 16 .

Apr. 23 

Apr. 30 

May 7. ....

M«v 11

May 21 

May 28 

July 2. ...

Julv9 ....

July 16. 

Specific 

conductance 

(K+106 

at 25° C.)

468

435

416

423

435

446

432

437

454

446

480

332

413

362

305

395

416

450

450

478

430

444

-»

Chloride 

(Cl, 

p. p. m.)

740

655

600

620

630

665

660

675

695

680

785

400

590

450

350

550

575

660

680

745

650

675

Date

1942 

July 23 

July 30 

Aug. 13 ..

Aug. 27.. 

Sept. 3 ..

Sept. 10 

Sept. 17 

Sept. 24-__._.

Oct. 1 

Oct. 8- ......

Oct. 15 

Oct. 22 

Oct. 29 

Nov.5... 

Nov. 12 

Nov. 19 

Nov. 26 

Dec. 10 

Dec. 17 

Specific 

conductance 

(K+10<> 

at 25° C.)

137

an1)

449

485

459

443

396

335

363

352

357

380

409

413

395

392

361

338

395

417

414

427

Chloride 

(Cl, 

p. p. m.)

635

590

685

755

710

685

562

272

395

442

430

490

582

540

575

460

400

505

555

550

585

Dat

*

194% 

Dec. 2

194

Jan. 14

Jan. 21 

Feb. 4.

Feb. 11 .

Feb. 18

Feb. 2

Mar. 4 

Mar. 11

Mar. 1

Mar. 2

Apr 1 

Apr 15

Apr 2

Apr 29

May 6 
MISCELLANEOUS STREAMS IN PECOS RIVER BA

Chemical analyses, in parts per mittion 

Pecos River hear Anton Chico, N. Mex.

Date of collection

Feb. is, 1943..............

Apr. 16 

Discharge 

(secondfeet)

Specific 

conductance 

(KXIO* 

at 

25° C.)

24.3 

22.6

Silica 

(SiOj)

Iron

(Fe)

Calcium 

(Ca)

Magnesium 

(Mg)

Sodium 

and Potassium 

(Na+K)

Bicarbonate 

(HCOs)

Sulfate

(S04)

Chteride 

(CD

Fluoride 

(F)

Pecos River at Santa Rosa, N. Mex.

Dec. 18, 1942... ...........

Feb. 17,1943..............

Apr. 16 

Apr. 17... ................

Ill 

111 

109 

111

202 28 10 » 465 18 

20 

18 

19

Pecos River near Puerto de Luna, N. Mex.

Dec. 18, 1942....... ....

Feb. 18, 1943..............

Apr. 17... -... ...

219 

233

218

408 54 90 160 1,103 111 

110 

101

Pecos River near Malaga, N. Mex.

Aug. 11, 1943... ... ... ....

Sept. 20. ..............

581 

539

1,060

930

Creek (Rito) near Santa Rosa, N. Mex. 

Dee. 18, 1942 ...........

Apr. 17, 1943....... . 

Apr. 19.. ..............

274 

266 

266

595 75 62 190 1,592 82 

79 

78
76 QUALITY OF SURFACE WATERS, 1943

- pa fi

s

g£ "if

ffiSB

in

gs

'

'

SS1 Ii|j

SI

o 3» 

cIJ

'a

'5

COv-l -^ 

010 t>

ill

e

1 1

^t

s

s

S

JSus

i

0

«

 i

-

1

s

i
Black River at Forehand Crossing, sec. 9, T. 24 S., R. 28 E., near M

Sept. 30, 1942.............

Dee. 19 

May 24, 1943...... .*..

ftcmt 1 Q

199

185 

209 

213

15 0.12 405 

376 

431 

435

71 

59 

71

76

27 

8.7 

21 

21

180 

179 

173 

165

1,147 

986 

1,193 

1,226

12 

18 

20 

22

0.3

.....

.....

Chemical analyses, in equivalents per million 

« Pecos River near Anton Chico, N. Mex. 

Feb. IS, 1943-. 

Apr. 16 -

Pecos River at Santa Rosa, N. Mex. 

Dee. 18, 1942..-.-. 

Feb. 17, 1943 

Apr, 16 - -- 

Apr. 17 

/

10. 2.30 0.45 2.64 9.68 0.51 

.56

.51

.54

Pecos River near Puerto de Luna, N. Mex. 

Dee. 18, 1942 ..........

Feb. 18, 1943 

Apr. 17.... ... 

20.36 4.44 3.91 2.62 22.96 3.13 

3.10

2.85

Pecos River near Malaga, N. Mex. 

Aug. 11, 1943 

Sept. 20 

29.90

26.23

Creek (2ito) near Santa Tlosa, *,. Mex.

Dec. 18, 1942- 

ATM- 17

29.70 6.17 2.70 3.11 33.14 2.31 

2 23 

2.20
MISCELLANEOUS STREAMS IN PECOS RIVER BASIN 

Chemical analyses, in equivalents per million Cont

Seepage from fish hatchery into Creek (Rito) near Santa Rosa, 

Date of collection

Apr. 17, 1943 ..........

Discharge 

(secondfeet)

Specific 

conductance 

(KXW 

at 

25° C.)

Silica 

(SiOj)

Iron

(Fe)

Calcium 

(Ca)

32.74

Magnesium 

(Mg)

7.65

Sodium 

and Potassium 

(Na+K)

3.34

Bicarbonate 

.(HCO.)

2.80

Sulfate

37.14

Chloride 

(CD

3.78

FIuoride

(F)

Alamogordo Creek near Fort Sunnier, N. Mex. 

Dec. 18, 1942--. ........ 1.40 1.15 8.96 5.41 4.89 1.21 

South Berrendo Creek, sec. 15, T. 10 S., R. 24 E., near Roswell

Jeb. 19, 1943.... ....... 12.83 7.40 14.46 3.49 15.86 15.23 

Hagerman Canal at Dexter, N. Mex. 

Nov. 10, 1942... ..........

Dec. 19. .............

Jan. 22, 1943... ...........

Mar. 2.... ......... ...

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

May 24 ...i............

Aug. 2., ...,......,.....

Set*. 18..................

%

..

2.41

22.14

19.46

15.09

23.97

24.54

27.08

30.40

34. 97 
Black River at Lookout Crossing, sec. 8, T. 24 S., R. 28 E., near M

Mar. 1,1943.............. 19.96 6.99 1.22 2.66 24,30 1.18 

Black River at Forehand Crossing, sec. 9, T.24 S., R.28 E., near 

Sept. 30, 1942_..___. ______

Dec. 19.. ...... 

May 24, 1943.............

Sept. 19. .............. ...

20.21 

18 77 

21.51 

21.71

5.84 

4 85 

5.84 

6.25

1.17 

.38 

.91 

.91

2.95 

- 2.93 

2.84 

2.70

23.88 

20.53 

24 84 

25.52

0.34 

51

.56 

.62

0.02 
COLORADO RIVER BASIN

COLORADO RIVER NEAR GLENWOOD SPRING

LOCATION. At Shoshone power plant, 6 miles upstream from gaging station, which is at Glenwo

DEAINAGE ABBA. Approximately 4,560 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1941 to September 1943. (See table on 

EXTREMES, 1942-43. Dissolved solids: Maximum, 661 parts per million Jan. 11-20; minimu

Total hardness: Maximum, 292 parts per million Dec. 1-10; minimum, 78 parts per millio

EXTREMES, 1941-43. Dissolved solids: Maximum, that of Jan. 11-20, 1943; minimum, 105 

Total hardness: Maximum, that of Dec. 1-10, 1942; minimum, 72 parts per million June 1

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

 Chemical analyses, in parts per million, water year October 1942 

Date of collection

Oct. 1-10, 1942.... ........

Oct. 11-20 _________

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

Nov. 1-10 

Nov. 11-20 

Nov. 21-30 

Dec. 1-10.-. 

Dec. 11-20.. 

Dec. 21-31.... _ . _

Jan. 1-10, 1943 

Jan. 11-20- 

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

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

feb. 11 20 

Feb. 21-28..... .......

Mar. 1-10 ..-. 

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

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

Mean 

discharge 

(secondfeet)

810 

856 

900 

927 

851 

702

613 

669 

672 

613 

563 

630

580 

624 

758 

674 

741 

936

Specific 

conductance 

(KX106 

at 

25° C.)

94.4 

91.8 

89 0 

84.9 

90.4 

100

107 

102 

103 

111

113 

100

102 

102 

95.8 

101 

96.6 

84.5

Silica 

(SiOj)

J4 

14 

14 

14 

14 

12

13 

14 

12 

13 

14 

12

13 

14 

12 

11 

12 is

Iron

(Fe)

0.06 

.07 

.06 

.07 

.07 

.10

.04 

.04 

.06 

.08 

.09 

.10

.03 

.T4 

.05 

.04 

.09 

.10

Calcium 

(Ca)

80 

80 

76 

74 

76 

82

84 

80 

78 

80 

80 

74

75 

;3 

71 

72 

74 

67

Magnesium 

(Mg)

19 

20 

20 

19 

20 

21

20 

20 

19 

20 

20 

19

18 

18 

17 

17 

17 

17

Sodium

(Na)

83 

83 

81 

75 

83 

98

105 

104 

109 

123 

124 

107

111 

114 

98 

112 

102 

81

Potassium 

(K)

4.6 

5.2 

5.0 

5.2 

6.S 

4.2

2.4 

4.8 

2.6 

2.6 

2.8 

4.4

4.4 

3.8 

3.2

" 2 6 

2.2 

5.0

Bicarbonate 

(HCOs)

154 

158 

160 

154 

165 

168

171 

165 

163 

168 

170 

158

160 

154 

146 

155 

149 

144

Sulfate 

(BOO

156 

151 

144 

138 

144 

159

164 

153 

148 

153 

151 

137

139 

137 

135 

137 

143 

130

Chloride 

(01)

130 

126 

123 

115 

126 

146

154 

152 

158 

180 

184 

160

163 

Id6 

141 

160 

142 

119

Flu

ri

(F

0
Apr. 1-10.................

Apr. 11-20 .. .

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

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

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

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

June 1-10. _________

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

June 21-30 _ . ............

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

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

July 21-31.................

Aug."l-10 

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

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

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

Sept. 11-20................

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

1,969

2,058

4,133

6,650

4,423

5,610

9,913

9,150

10,260

6,811

3,436

2,302

1,912

1,788

1,611

1,295

1,045

992

2,455

51.3

49.3

31.0

23.1

28.5

28.6

22.1

21.9

19.8

26.3

38.4

50.5

55.3

55 9

58.5

67. S

79.6

89.5

41.5

14

14

12

11

10

10

10

11

7.8

9.0

10

10

8.4

10

12

10

10

26

11

.15

.14

.06

.15

.10

.12

.04

.03

.03

.03

.01

.02

.04

.06

.12

.02

02

.01

0.06

47

44

34

30

29

29

27

25

24

27

35

48

51

52

56

63

70

83

40

12

11

7.2

6.1

7.3

7.1

5.3

5.2

4.5

6.2

8.1

10

12

12

13

15

16

17

9.0

42

42

20

12

20

20

11

12

10

17

29

38

44

44

45

53

68

77

33

3.2

4.0

2.5

2.1

1.9

1.9

1.4

1.0

1.2

1.2

1.6

2.2

1.9

2.0

1.6

4.5

4.6

4.8

2.2

120

117

99

81

85

QC

82

73

67

76

8fr

105

114

117

122

133

142

146

99

85

75

41

37

41

41

30

32

28

41

61

87

92

93

101

122

136

164

63

50

55

25

14

23

22

9.5

11

10

20

37

51

57

58

60

71

96

110

43

Chemical analyses, in equivalents per million, water year October 

Oct. 1-10, 1942............

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

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

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

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

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

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

Dec. 11-20..- .... ...

Dec.21-31_ ..........

Jan. 1-10, 1943... ____ ..

Jan. 11-20........... ......

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

"Feb. 1-1"-- ... .......

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

Feb. 21-28.. ..............

Mar. 1-10 

Mar. 11-20 

Mar. 21-31 .....

810

856

900

927

851

702

613

669

672

613

563

630

580

624

758

674

741

936

3.99

3.99

3 79

3.69

3.79

4.09

4.19

3.99

3.89

3.99

3.99

3.69

3.74

3.64

3.54

3 59

3.69

3.34

1.56

1.64

1.64

1.56

1.64

1.73

1.64

1.64

1.56

1.64

1.64

1.56

1.48

1.48

1.40

1.40

1.40

1.40

3.61

3 61

3.52

3.26

3.61

4.26

4.57

4.52

4.74

5.35

5.39

4.65

4.83

4.96

4.26

4.87

4.44

3.52

0.12

.13

.13

.13

.15

.11

.06

.12

.07

.07

.07

.11

.11

.10

.08

.07

.06

.13

2.52

2.59

2.62

2.52

2.70

2.75

2.80

2.70

2 67

2.75

2.79

2.59

2.62

2.52

2.39

2.54

2.44

2.36

3.25

3.14

3.00

2.87

3 00

3.31

3 41

3.19

3.08

3.19

3.14

2.85

2.89

2.85

2.81

2 85

2.98

2.71

3.67

3.55

3.47

3.24

3.55

4.12

4 34

4.29

4.46

5.08

5.19

4.51

4.60

4.68

3.98

4 51

4.00

3.36
COLORADO RIVER NEAR GLENWOOD SPRINGS, COLO

Chemical analyses, in equivalents per million, water year October 1942 to 

Date of collection

Apr. 1-10-. 

Apr. 11-20 ., ._

Apr. 21-30--- ::-.' 

May 1-10.. 

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

May 21-31. .. 

June 21-30. 

July 1-10.. . .

July 11-20.... 

July 21-31 .......... 

Aug. 1-10- 

Aug. 11-20. 

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

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

Sept. 11-20 .............

sept. 21-30 _ .

.. Weighted average ......

Mean 

discharge 

(secondfeet)

1,969

2,058

4,133

6,650

4,423

5,610

9,913

9,150

-10,260

6,811

3,436

2,302

-1,912

1,788

1,611

1,295

1,045

992

2,455

Specific 

conductance 

(KX10* 

at 

25° C.)

 

Silica 

(SiOs)

......

Iron

(Fe)

......

Calcium 

(Ca)

2.35 

2 20 

1.70 

1.50 

1.45 

1.45

1.35 

1.25 

1.20 

1.35 

1.75 

2.40

2.55 

2.60 

2.80 

3.14 

3.49 

4.14

2.00

Magnesium 

(Mg)

.99 

.90 

.59 

.50 

.60 

.58

.44 

.43 

.37 

.51 

.67 

.82

.99 

.99 

1.07 

1.23 

1.32 

1 40

0.74

Sodium

(Na)

1.83 

1.83 

.87 

.52 

.87 

.87

.48 

.52 

.43 

.74 

1.26 

1.65

1.91 

1.91 

J.96 

2.30 

2.96 

3.35

1.44

Potassium 

(K)

.08 

.10 

.06 

.05 

.05 

.05

.04 

.03 

.03 

.03 

.04 

.06

.05 

.05 

.04 

.12 

.12 

.12

0.06

Bicarbonate 

(HCOs)

1.97 

1.92 

1.62 

1.33 

1.39 

1.44

1.34 

1.20 

1.10 

I 25 

1.46 

1.72

1.87 

1.92- 

2 00 

2.18 

2.33 

2.39

1.62

Sulfate

(SCW

1.77 

1.56

.85 

.77 

.85 

.85

.62 

.67

.58 

.85 

1.27 

1.81

1.92 

1.94 

2.10 

2.54 

2.83 

3.41

1.31

Chloride 

(CD

1.41 

1.55 

.71 

.39

.65 

.62

.27 

.31 

.28 

.56 

1.04 

1 44

1 61 

1.64 

1.69 

2.00 

2.71 

3.10

1.21

F

0
COLORADO RIVER BASIN 83

COLORADO RIVER NEAR CAMEO, COLO.

LOCATION. At diversion dam, about 1% miles upstream from Cameo and 5 miles

downstream from gaging station.

DRAINAGE AREA. 8,055 square miles above gaging station. 

RECORDS AVAILABLE. Chemical analyses: October 1933 to September 1943. (See

table on page 167.) 

EXTREMES, 1942-43. Dissolved solids: Maximum, 990 parts per million Nov. 1-10;

minimum, 152 parts per million June 11-20.

EXTREMES, 1933-43. Dissolved solids: Maximum, 1,050 parts par n^llion Dec. 

21-31, 1939; minimum, 143 parts per million June 11-20, 1935.

Total hardness (1933-35): Maximum, 399 parts per million July 21-31, 1934;

minimum, 98 parts per million June 21-30, 1935. 

REMARKS. Records of discharge for water year October 1942 to Septeml ?r 1943 are

given in Water-Supply Paper 979.

Dissolved solids, in parts per million, and discharge, in secotid-fert, 

water year October 1942 to September 1943

Date of 

collection '

1942 

Oct. 1-10..... ......... .

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

Oct. 21-26, 28-3 1. ......

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

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

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

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

Dec. 11-20.............

Dec. 21-31. ............

1943

Jan. 1-10..... ..........

Jan. 11-20....... ________

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

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

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

Feb. 21-28. ........... .

Mar. 1,3-10.... ........

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

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

Apr. 1-8, 10.. ....... ...

Dissolved 

' solids

877

886

840

990

1 828

922

940

941

905

955

98S

936

960

917

902

nqo

892

878

540

Mean 

discharge

1,433

1,558

1,577

1,674

1,589

1,485

1,378

1,376

1,339

1,262

1,159

1,310

1,295

1,267

1,448

1

QOA

1,389

1,605

3,077

Date of 

collection

1943 

Apr. 12-19--.. ....

Apr. 22-30.............

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

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

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

Junell-20.... .-. 

June21-30._..._.._. 

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

Julv 11-20..............

July 21-31..... ...... ...

Aug. M, 8-10 .... ...

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

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

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

Sept. 11-20... ..........

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

Dissolved 

solids

490

283

214

261

232

184

152

170

221

307

420

520

55S

530

568

674

766

655

391

Mean 

discharge

3,090

5,787

9,806

6,361

8,636

15,690

14,590

16,670

10,290

5,195

3,675

3,221

3,017

3,140

2,452

1,732

1,716

3,985
84 QUALITY OF SURFACE WATERS, 1943

COLORADO RIVER NEAR CISCO, UTAH

LOCATION. At highway bridge below gaging station, 1 mile downstream from Dolores 

River and 11 miles south of Cisco.

DRAINAGE AREA. 24,100 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1928 to September 1943. (See

table on page 167.)

Sediment records: May 1929 to September 1943. 

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,828 parts per nillion Oct.

11-20; minimum, 270 parts per million June 11-20. 

Sediment loads: Maximum, 288,000 tons per day Aug. 20; minimum, less than

1,000 tons per day on several days. 

EXTREMES, 1928-43. Dissolved solids: Maximum, 2,670 parts per n^illion Aug.

11-20, 1940; minimum, 202 parts per million June 11-20, 1935. 

Total hardness (1928-35): Maximum, 1,090 parts per million Sept. 1-10, 1934;

minimum, 132 parts per million June 11-20, 1933. 

Sediment loads: Maximum, 2,790,000 tons per day Oct. 14, 1941; minimum, less

than 500 tons per day on several days.

REMARKS. Records of discharge for water year October 1942 to September 1943 are 

given in Water-Supply Paper 979.

Dissolved solids, in parts per million, and discharge, in second-feet, 

water year October 19J$ to September 1943

Date of 

collection

194® 

Oct. 1-10 

Oct, 11-20. 

Oct. 21-31.... 

Nov. 1-10. .

Nov. 11-20. 

Nov. 21-25, 27-30.......

Dec. 1-10... 

Dec. 11-15, 17-20 

Dec. 21-31...... ....

1943

Jan. 1-10-. -

Jan. 11-12, 21, .... 

Jan. 28. 

Feb. 1, 8, 18, 27 .

Mar. 4, 9,17, 22,' 29. 

Apr. 8, 12, 20.. ..

Apr. 21-30--.- 

Dissolved]

solids

1,770

1,828

1,600

1,482

1,451

1,449

1,422

1,483

1,419

1,512

1,510

1,178

1,333

1,270

470

308

Mean 

discharge

2,267

2,745

2,853

3,298

3,121

2,956

2,778

2,622

2,616

2,368

2,077

2,660

2,582

2,644

10 980

17* 640

Date of 

collection

1943 

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

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

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

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

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

July 11-16 ..... _ ...

July 17-20... ...........

Julv 21-31...... ........

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

Aug. 11, 13-20 

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

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

Sept. 11. 13-20... .......

Sept. 21-25 

Dissolved 

solids

299

450

309

280

270

277

373

503

842

1,080

963

829

982

1,218

1,518

1,481

1,036

Mean 

discharge

22,980

12,400

13,470

24,500

21,680

22,620

14,020

7,140

5,760

4,277

4,498

6,124

7,195

5,475

2,590

2,630

7,094
COLORADO RIVER BASIN 85

COLORADO RIVER NEAR CISCO, UTAH Continued

Suspended sediment, water year October 191$ to September 1943

October

Day

1

2.......

3.......

4.......

5.......

6 

7 

8 

9 .

10 

11 

12......

13......

14......

15......

16......

17......

IS 

19.. .

201. 

21......

22......

23 

24......

25

26......

27......

28 

29 

30 

31......

Mean 

discharge 

(secondfeet)

2,400

2,250

2,200

2,230

2,270

2,280

2,440

2,980

3,010

2,890 

2,900

2,870

2,810

2,690

2,800

3,030

Suspended sediment

Mean 

concentration 

(percent)

0.02

.02

.01

.01

.00

.00

.15

.02

.03

' .03 

.02

.02

.02

.02

.02

.02

Tons 

per day

1,300

1,220

594

602

.00

.00

9,880

1,610

2,440

2,340 

1,570

1,550

1,520

1,450

1,510

1,640

January

1 

2.......

3.......

4.......

5.......

6.......

7.......

8.......

9 ...

10......

11......

12......

13......

14......

15 

16 

17......

18......

19......

20......

21...... 

22 ...

23......

24......

25 

26......

27......

28...... 

29 

30......

31......

2,610 

2,470

2,170

2,200

2,200 

2,230

1,800

2,660

0.02 

.01

.01

.01

.01 

.01

.01

.02

1,410

667

586

594

594 

602

486

1,440

November

^ean 

discharge 

(secondfeet)

3,450

3,230

3,640 

3,120

3,280

3,250

3,030

2,960

3,100

3,260

3,170

,3,030

2,710

2,990

2,870

Suspended sediment

Mean 

concentration 

(percent)

0.02

.02

.03 

.05

.02

.02

.01

.00

.00

.01

.61

.02

.01

.02

.01

Tons 

per day

1,860

1,740

2,950 

4,210

1,770

1,760

818

0

0

880

856

1,640

732

1,610

775

February

2,610

2,400

2,450

2,870

0.01

.01

.02

.04

705

648

1,320

3,100

Deceirber

Mean 

discharge 

(secondfeet)

2,940

2,960

2,900

2,800

2,570

2,610

2,690

2,590

2,540

2,540

2,540

2,440

2,690

2,780

2,590

2,610

Suspended sediment

Mean conceitraticn 

(percent)

0.01

.00

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

Tons 

per day

794

00

783

756

694

705

726

699

686

686

686

659

726

751

699

705

March

2,450

2,540

2,710

1

2,560

2,960

0.02

.01

--"o?

.02

.04

1,320

686

2,930

1,380

3,200
86 QUALITY OF SURFACE WATERS, 1943

COLORADO RIVER NEAR CISCO, UTAH Continued

Suspended sediment, water year October 194® to September 1943 Continued

April

Day

1 ....

2.......

3.......

4.......

5.......

6 

7.......

8 .

9 ...

10......

11......

12......

13. 

14......

15......

16 

17......

18 

19......

20... 

21.....

22......

23......

24......

25 

26 

27 

28. ,.

29......

30......

31......

Mean 

discharge 

(secondfeet)

13,300

7.030

11,700 

12,600

15,300

18,800

18, 700

19,300

Suspended sediment

Mean 

concentration 

(percent)

0.27

.08

.14

.13

.24

.20

.14

.17

Tons 

per day

97,000

15,200

44,200 

44,200

99,100

102,000

70,700

88,600

July

I......

2.......

3.......

4.......

5.......

6.......

7 

8..-..-.

9. ...

10......

11 

12...... 13 ..:

14 ...

15 

16 

17......

18......

19...... 

20 

21...... 

22......

23 

24. ..

25...... 

26 

27 . 

28 

29...... 

30 

31 

20,000

18,000

14,000 

12,500 

11,300

9,300

8,420 

7,660 

7,260

6,570

5,410 

5,020 

4,720

4,850

4,600

4,250

3,720

3,700

0.02

.01

.01 

.02 

.02

.03

.02 

.02 

.02

.02

.07

.24 

.43

.34

.03

.10

.13

.09

10,800

4,860

3,780 

6,750 

6,100

7,530

4,550 

4,140 

3,920

3,550

10,200 

32,500 

54,800

44,500

,.3,730

11,500

13,100

8,990

May

Mean 

discharge 

(secondfeet)

23,300 

22,700 

24, 100

28,000

22,400

17,400

14,500

14,200

11,300

9,450

8,300

8,420 

8,280 

9,160 

11,300 

14, 800

17,400 

21,900

Suspended sediment

Mean 

concentration 

(percent)

0.28 

.12 

.18

.16

.07

.06

.05

.04

.03

.02

.02

.02 

.02 

.02 

.04 

.05

.10 

.10

Tons 

per day

176,000 

73,500 

117,000

121,000

42,300

28,200

19,600

15,300

9,150

5,100

4,480

4,550 

4,470 

4,950 

12,200 

20,000

47,000 

59,100

August

4,090

4,530

4,510

4,830

5,720 

5,060

4,810 

5,940

9,130

.

7,280

6,550

5,990

0.06

.47

.05

.05

.23 

.07

.07 

1.36

1.17

1.15

.15

.66

6,630

57,500

, 6,090

6,520

35,500 

9,560

9,090 

218,000

288,000

226,000

26,500

107,000

June

Mean 

discharge 

(secondfeet)

26,700 

25,800 

32, 100 

32, 700 

25,700

19,200

"19,900

25.500

23,300

19,300 

18,600

19,300

20,700

23,200

23,600

21,800

Suspended sediment

Mean 

concentration 

(percent)

0.12 

.16 

.24 

.24 

.10

.04

.04

.06

.03

.02 

.03

.04

.03

.04

.03

.03

Tons 

per day

86,500 

111,000 

208,000 

212,000 

69,400

20,700

21,500

41,300

18,900

10,400 

15,100

20,800

16,800

25,100

19,100

17,700

September

8,720

5,990

4,910

3,890

3,230-

2,850

2,590

2,470

2,500

2,420

2,320

2,200 

2,200

2,280

0.65

, .10

.03

.06

.05

.03

.02

.02

.02

.01

.01

.01 

.01 

.10

153,000

16,200

3,980

6,300

4,360

2,310

1,400

1,330

1,350

653

626

594 

594 

6,160
COLORADO RIVER AT LEES FERRY, ARIZ.

LOCATION. At head of Marble Gorge, at Lees Ferry, just upstream from Paria River, 28 miles d

downstream from San Juan River, and 355 miles upstream from Boulder Dam. 

DRAINAGE AREA. 107,900 square miles.

RECORDS AVAILABLE. Chemical analyses: July 1926, October 1926 to September 1927, Octob

tember 1943. (See table on page 167.)

Sediment records: October 1929 to December 1933, November 1942 to September 1943. 

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,225 parts per million Nov. 1-10; minimu

Total hardness: Maximum, 553 parts per million Nov. 1-10; minimum, 158 parts per millio

Sediment loads: Maximum, 1,290,000 tons per day, June 7; minimum, 13,300 tons per day 

EXTREMES, 1928-30, 1942-43. Dissolved solids: Maximum, 1,410 parts per million Oct. 11

11-20, 1929.

Total hardness: Maximum, 720 parts per million Oct. 11-20, 1928; minimum, 137 parts per 

Sediment loads: Maximum, 9,450,000 tons per day Aug. 7, 1929; minimum, 8,980 tons per 

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in W

Chemical analyses, in parts per million, water year October 1942 

Date of collection

Nov. J.4-10 -

Nov. 11-18, 20 -

Nov. 21-28... ........... ..

Dec. 2-10-........ -

Dec. 11-20-. -

Dec. 21-31...............

Jan. 1-3, 6-10, 1943. .......

Jan. 11-16, 18-20.-.. 

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

Feb. 1-3, 6-10.. ...... ..

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

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

Mean 

discharge 

(secondfeet)

6,198 

6,136 

6,239 

6,159 

5,240 

6,008

5,354 

4,607 

6,047 

5,832 

5,313^ 

7,012

Specific 

conductance 

(KXlfls 

at 

25° C.)

173 

163 

160 

159 

163 

163

160 

164 

ItH 

155 

155 

149

Silica 

(SiOa)

15 

IS 

18 

18 

14 

15

19 

20 

15 

14 

13 

14

Iron 

(Fe)

0.10 

.08 

.08 

.05 

.05 

.05

.10 

.08 

.10 

.10 

.12 

.20

Calcium 

-(Ca)

126 

118 

114 

116 

119 

121

112 

112 

112 

110 

109 

109

Magnesium 

(Mg)

58 

56 

54 

54 

55 

54

55 

55 

52 

51 

50 

50

Sodium 

(Na)

Potassium 

(K)

196 

180 

182 

175 

183 

181

173 

174 

180 

176 

172 

158

Bicarbonate 

(HCQa)

223 

226 

216 

233 

241 

248

210 

218 

220 

229 

218 

224

Sulfate 

(S04)

584 

528 

520 

503 

510 

499

501 

' 481 

480 

469 

456 

447

Chloride 

(Cl)

130 

126 

126 

122 

132 

133

130' 

142 

143 

133 

138 

120

Fluo

ride 

(F)

0.2 

.2 

.

.4 

.

.2

.3 

.2 

.2 

.2 

.2 

.2
COLORADO RIVER AT LEES FERRY, ARIZ. Continu

Chemical analyses, in parts per million, water year October 194$ to Septe

Date of collection

Mar. 5-10.................

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

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

Apr. 5-9...................

Apr. 14-19... .............

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

May 3, 6-10...............

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

May 21-23, 25, 27-31.......

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

June 11-17, 19-20..........

June 22-24, 26-30..........

July 1,6-10...............

July 11-16, 18-20....... ...

July 22-24, 26-31...........

Aug. 1, 4-7, 10

Aug. 11-19.. ..............

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

Sept. 1, 6-10...............

Sept. 11-12, 14-20 .......

Sept. 21-28, 30.............

Weighted average » __ .

Mean 

discharge 

(secondfeet)

7,951 

8,827 

8,412 

17,430 

20,840 

34,820

49,510 

33,570 

23,400 

51,840 

43,430 

42,330

38,310 

19,500 

12,930 

11,090 

13,050 

14,390

11,210 

6,020 

5,322

16,470

Specific 

conductance 

(KX10* 

at 

25° C.)

130 

134 

125 

105 

70.6 

55.4

41.3 

49.3 

59.5 

47.2 

45.9 

44.0

44.4 

36. 1 

82.3 

99.4 

124 

123

115 

119 

140

77.7

Silica 

(SiOz)

13 

14 

13 

22 

22 

16

16 

24 

18 

22 

19 

17

12 

13 

14

18 

19

17 

16 

14

17

Iron 

(Fe)

0.15 

.20 

.10 

.08 

.08 

..10

.12 

.04 

.06 

.04 

.03 

.03

.oa

.04 

.04 

.05 

.05 

.03

.04 

.02 

.04

0.06

Calcium 

(Ca)

96 

97 

91 

80 

58 

50

40 

46 

52 

43 

40 

40

40 

48 

67 

80 

105 

114

104 

98 

110

64

Magnesium 

(Mg)

43 

43 

41 

35 

24 

21

14 

15 

18 

15 

14 

14

14 

16 

23 

30 

35 

35

32 

56 

43

25

Sodium 

(Na)

Potassium 

(K)

138 

144 

134 

102 

60 

37

27 

38 

50 

36 

35 

30

31 

46 

75 

93 

121 

115

106 

112 

144

71

Bicarbonate 

.(HCOs)

205 

203 

202 

181 

154 

140

115 

132 

135 

121 

118 

114

115 

127 

150 

166

188 

178

168 

182 

189

150

Sulfate

(S04)

400 

409 

378 

299 

185 

134

94 

114 

150 

114 

105 

97

98 

130 

213 

291 

403 

426

379 

365 

453

217

Chloride 

(CD

92 

97 

89 

69 

35 

25

15 

20 

30

18 

18

18

19 

31 

53 

56 

64 

56

57 

71 

92

46

Fluoride 

(F)

0.4 

.4 

.4 

.3 

.3 

.2

.2 

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.2 

.4 

.5

.5 

.5 

.5

0.3

For 11 months.
COLORADO RIVER AT LEES FERRY, ARIZ. Cont

Chemical analyses, in equivalents per million, water year October 

Nov. 1, 4-10. 

Nov. 11-18, 20.. 

Nov. 21-28- ..... 

Dec. 2-10. __ . _____ .

Dec. 11-20.. _______ .

Dec. 21-31 _....... 

Jan. 1-3, 6-10, 1943. ..

Jan. 11-16, 18-20 __ . __

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

Feb. 1-3, 6-10. _______

Feb. 11-20... 

Feb. 21-28.... ........

Mar. 5-10. __ . _ .... ....

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

Mar. 21-31 

Apr. 5-9... - ...

Apr. 14-19.- .

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

May 3, 6-10 ____ ........

May 11-20 

May 21-23, 25, 27-31 ___ .

June 11-17, 19-20 

June 22-24, 26-30 

July 1.6-10.. .............

July 11-16, 18-20. __ ....

July 22-24, 26-31.... . 

Aug. 1, 4-7, 10 .

Aug. 11-19. . 

Aug. 21-31 ... 

Sept. 1, 6-10- -

Sept. 11-12, 14-20 .

Sept. 21-28, 30... 

6,198

6,136

6,239

6,159

5,240

6,008

5,354

4,607

6,047

5,832

5,313

7,012

7,951

8,827

8,412

17,430

20,840

34,820

49,510

33,570 

23,400

51,840

43,430

42,330

38,310

19,500

12,930

11,090

13,050

14,390

11,210

6,020

5,322

16,470

6.29

5.89

5.69

5.79

5.94

6.04

5.59

5.59

5.59

5.49

5.44

5.44

4.79

4.84

4.54

3.99

2.89

2.50

2.00

. ou 

2.60

2.15

2.00

2.00

2.00

2.40

3.34

3.99

5.24

5.69

5.19

4.89

5.49

3.19

4.77

4.61

4.44

4.44

4.52

4.44

4.52

4.52

4.28

4.19

4.11

4.11

3.54

3.54

3.37

2.88

1.97

1.73

1 . £iO

1.48

1.23

1.15

1.15

1.15

1.32

1.89

2.47

2.88

2.88

2.63

2.96

3.54

2.06

8:54

7.81

7.91

7.63

7.96

7.86

7.53

7.58

7.84

7.66

7.48

6. "88

6.02

6.28

5.81

4.42

2.61

1.63

1.18

2.18

1.55

1.54

1.31

1.36

1 00

3.25

4.03

5.28

4.98

4.61

4.89

6.24

3.09

3.66

3.70

3.54

3.82

3.95

4.07

3.44

3.57

3.61

3.75

3.57

3.67

3.36

3.33

3.31

2.97

2.52

2.29

1.88

. iu

2.21

1.98

1.93

1.87

1.88

L- 2.08

2.46

2.72

3.08

2.92

2.75

2.98

3.10

2.46

12.16

10.95

10.83

10.47

10.62

10.39

10.43

10.01

9.99

9.76

9.49

9.31

8.33

8.52

7.83

6.23

3.85

2.79

1.96

.of

3.12

2.37

2.19

2.02

2.04

2.71

4.43

6.06

8.39

8.87

7.89

7.60

9.43

4.52

3.67

3.55

3.55

3.44

3.72

3.75

3.67

4.00

4.03

3.75

3.89

3.38

2.59

2.74

2.51

1.95

.99

.71

.42

.85

.51

.51

.51

.54

.87

1.49

1.58

1.81

1.58

1.61

2.00

2.59

1.30

0

0

i For 11 months.
90 QUALITY OF SURFACE WATERS, 1943

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 1942 to September 1943

October

Day

1 

2_. _ ..

3.......

4_ 

5.......

6.. __ .

7. 

8.......

fl .....

10 

11. 

12......

13 

14......

15 

16 

17- 

18 

19 

20 

21......

22......

23_ 

24 

25- 

26 

27 

28 

29 

30 

31 

Mean 

discharge 

(eecondfeet)

,

Suspended sediment

Mean 

percent

Tons 

per day

January

1 

2.......

3 

4.......

5 

6 

7 

8 ____

9... 

10 

11 

12......

13 

14 

15 

16 

17 

18 

19 

20 

21. 

22. 

23. 

24.. . 

25 

26 

27. 

28 

29. 

30 

31......

5,810

5,380

5,220

4,280

4,090

4,300

4,450

5,030

5,470

4,640

4,440

6,910

7,630

6,670

0.13

.15

.13

.13

.12

.28

.23

.14

.16

.11

.27

.19

.34

.22

20,400

.. 21,800

18,300

15,000

13,300

32,500

28,200

- 19,000

23,600

13,800

32,400

35,400

70,666

39,600

November

Mean 

discharge 

(secondfeet)

6,700 

6,630 

6,150

6,240

6,150

6,060

5,810

6,180

6,530

6,310

6,210

Suspended sediment

Mean 

percent

0 13 

.14 

.12

.12

.13

.13

.10

.13

.09

.13

.13

Tons 

per day

23,500 

25,100 

19,900

20,200

21,600

21,300

15,700

21,700

15,900

22,100

21,800

February

6,120

6,210

5,720

5,580

5,230

4,990

5,180

5,400

5,430

5,690

6,280

6,870

7,810

7,630

0.13

.14

.14

.79;

.15

.11

.13

.22

.66

.13

.16

.22

.91

.22

21,500

23,500

21,600

119,000

21,200

14,800

18.20&

32,100

96,800

20,000

27,100

40,800

192,000

45,300

Deeenrber

Mean 

discharge 

(secondfeet)

6,060

5,870

6,210

6,470

6,370

5,580

4,670

4,870 

5,160

5,470

5,670

5,580

5,610

6,530

6,530

6,120

Suspended sediment

Mear 

percei t

0.10

.10

.11

.13

.12

.14

.59

10 

.21

.54

.12

.11

.12

.12

.12

.17

Tons 

per day

16,400

15,800

18,400

22,700

20,600

21,100

74,400

13,100 

29,300

50,200

18,400

16,600

18,200

21,200

21,200

28,100

March

7,990

7,740

7,350

7,420

9,760

9,040

9,080

9,240

9,400

8,890

7,880

7,660 

8,130 

8,470

0.24

.24

.32

.20

.5*

.71

.56

.64

1.1"

4.17

2.23

.31 

.40 

.32

51,800

50,200

63,500

40,100

142,000

173,000

137, 666

160,000.

299,000

281,000

474,000

J

74,500 

87,800 

73,200
COLORADO RIVER BASIN 91

COLORADO RIVER AT LEES FERRY, ARIZ. Continued

Suspended sediment, water year October 194% to September 1943 Continued

April

Day

1 

2 

3 

4.. 

5

6 

7 

8... 

9.. :.

10 

11......

12 

13.. .

14......

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 .

25 

26 

27.. 

28 

29 

30 

31.......

Mean 

discharge 

(secondfeet)

16,900

19.700

23,400

20,600 

19, 100

17,000

21,000

22,500

28,000

3S,000

41,800

42,000

Suspended sediment

Mean 

percent

1.86

.62

.64

.37 

.33

, .33

.30

.24

.34

.45

.43

.54

Tons 

per day

849,000

330,000

404,000

206,000 

170,000

151,000

170,000

146,000

257,000

425,000

485,000

612,000

July

1 

2 

3... 

4... ....

5 ... .

6 ....

7 

8 

9 

10 

11.. .

12......

13 

14 

15 .

16 .

17 

18 

19 

20 

21 -.

22...... 

23 

24.. 

25 -

26 

27- 

28 

29 

30 

31. 

45,200

38,600

32, 600

27,600

23,500

20,800

18,300

16,200

16,000

15,000

13,500

12,500

11,800

11,100

0.28

.27

.20

.16

.12

.09

.08

.08

.08

.11

.12

.16

.15

.09

342,000

281,000

176,000

119,000

76,100

50,500

39,500

35,000

34,600

44,600

43,700

54,000

47,800

27,000

May

Mean 

discharge 

(seco adfeet)

52,200

56,600

47,200

37,900

31,700

28,400

25,200

22,700

20,900

20,300

21,700

28.900

Suspended sediment

Mean 

percent

0 45

.62

.46

.43

.26

.23

21

.18

.17

.14

15

.26

Tons 

per day

634,000

947,000

586,000

440,000

223,000

176,000

143,000

110,000

95,900

76,700

87, 900

203,000

August

10,400

9,900

10,^00

13,300

12,200

14,700 

15,000

13,300

14,900 

14,200

13,000

12,300

0.16

18

.21

.21

1.15

.92 

1.19

1.23

.93

.82

.76

.67

44,900

48,100

60,100

75,400

379,000

365,000 

482,000

.442,000

374,000 

314,000

267*000

223,000

June

Mean 

discharge 

(secondfeet)

38,700

49,200

63,400 

64,400

56,300

43,000

45,400

49,200 

47, 800

41,100

38,200

39,500

40,300

42,700

46,100

Susperded sediment

Mean 

percent

0.33

.51

.6} 

.74

.5?

.T)

.3-*

:5'

.41

.411

.33

.3'

.37

.Oi,

.30

Tons 

per day

345,000

717,000

1,180,000 

1,290,000

790,000

917,000

466,000

677,000 

529,000

440,000

340,000

, 331,000

403,000

438,000

373,000

September

11,400

11,800

8,930

7,740

6,080

5,430

5,150 

5,020

4,740

4,590 

5,150

6,310

6,120

0.51

.59

,33

20

.20

.1C

i

ilf

.11

.11 , 

.If

.77

.8f

157,000

188,000

79,600

41,800

32,800

14,700

16,700 

. 16,300

14,100

13,600 

26,400

131,000

132,000
COLORADO RIVER AT BRIGHT ANGEL CREEK NEAR GRAND 

LOCATION. At gaging station at Kaibab Bridge, a quarter of a mile upstream from Bright 

Canyon Village, and 267 miles upstream from Boulder Dam. 

DRAINAGE AEEA. 137,800 square miles. 

KECOEDS AVAILABLE. Chemical analyses: August 1925 to Nov. 15, 1942, Sept. 18-30, 1943

Water temperatures: October 1941 to September 1942.

Sediment records: Oct. 1, 1925 to Oct. 31, 1942, Sept. 18-30, 1943.

EXTREMES, 1942-43 (Oct. 1-Nov. 15, 1942, and Sept. 18-30, 1943). Dissolved solids: Maxi

971 parts per million Sept. 18-30.

Total hardness: Maximum, 576 parts per million Nov. 1-10; minimum, 439 parts per.mill

Sediment loads: Maximum, 722,000 tons per day Sept. 29; minimum, 2,530 tons per day 

EXTREMES, 1925-43. Dissolved solids: Maximum, 1,890 parts per million Sept. 21-30, 1934

Total hardness: Maximum, 792 parts per million Sept. 1-10, 1940; minimum, 127 parts p

Sediment toads: Maximum, 27,600,000 tons per day Sept. 13, 1927; minimum, 863 tons p

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, Oct. 1-Nov. 15, 194%, a

Date of collection

Oct. 1-10, 1942.. .. ........

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

Get. 21-31 ..............

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

Sept. 18-30, 1943 ........

Mean 

discharge 

(secondfeet)

4,869 

5,874 

6,559 

6,401

6,078

Specific 

conductance 

(KX10» 

at 

25° C.)

182 

174 

179 

182

147

Silica 

(SiOs)

13 

11 

10 

15

12

Iron

(Fe)

0.15 

.11 

.11 

.07

.05

Calcium 

<Ca)

121 

124 

122 

130

110

Magnesium

(Mg)

64 

57 

62 

61

40

Sodium

(Na)

199 

179 

197 

19

, 157

Potassium 

(K)

10 

10

7.2

!

7.0

Bicarbonate 

(HCO,)

200 

200 

206 

227

217

Sulfate 

(SO*)

566 

548 

577 

551

395

Chloride 

(CD

178 

156 

156 

162

138

F

r

Chemical analyses, in equivalents per million, Oct. 1-Nov. 15, 194%

Oct. 1-10, 1942........ ....

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

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

Nov. 1-10 -....:.:_.. .

Sept. 18-30, 1943...... __ .

4,869

5,874

6,559

6,401

6,078

6.04

6.19

6.09

6.49

5.49

5.26

4.69

5.10

5.02

3.29

8.65

7.78

8.57

6.81

0.26

.26

.18

8.37

.18

3.28

3.78

3.38

3.72

3.56

11.78

11.41

12.01

11.47

8.22

5.02

4.40

4.40

457

3.89

0
COLORADO EIVEE BASIN 93

COLORADO RIVER AT BRIGHT ANGEL CREEK, NEAR GRAND CANYON, ARI7. Continued

Suspended sediment, water year October 194® to September 1943

October 1942

Day

1 ... .

2.. 

3.......

4 

5.. 

6.......

7 

8. 

9 

10......

11 

12......

13......

14 

15......

16......

17......

18......

19......

20......

21......

22

23.... .

24......

25......

26...... 

27...... 

28...... 

29...... 

30...... 

31......

Tot

Mean 

discharge 

(secondfeet)

4,930 

4,980 

5,000 

4,970 

4,930

4,860 

4,820 

4,800 

4,710 

4,690

5,060 

5,650 

6,010 

5,560 

5,300

6,570 

5,970 

6,190 

6,330 

6,100

6,710 

6,780 

7,080 

6,900 

6,520

6,300 

6,240 

6,360 

6,440 

6,450 

6,370

al load (toni

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.03

* .03 

.03 

.03

.02 

.02 

.02 

, .02 

.02

.03 

.03 

.57 

.12 

.45

.26 

.14 

.13 

.35 

.44

.22 

.16 

.15 

.15 

.13

.11 

.09 

.07 

.06 

.06 

.06

3) .....

Tons 

per day

3,990 

4,030 

4,050 

4,030 

3,990

2,620 

2,600 

2,590 

2,540 

2,530

4,100 

4,580 

92,500 

18,000 

64,400

46, 100 

22,600 

21,700 

59,800 

72,500

39,900 

29,300 

28,700 

27,900 

22,900

18,700 

15,200 

12,000 

10,400 

10,400 

10,300

665,000

November 1942

Mean 

discharge 

(secondfeet)

6,270 

6,150 

6,270 

6,270 

6,300

6,500 

6,640 6,590' 

6,500 

6,520

6,990 

6,850 

6,520 

6,580 

6,520

Suspended sediment

Mean 

concentration 

(percent)

0.08 

.09 

.06 

.05 

.05

.05 

.07 

.06 

.07 

.05

.05 

.05 

.05 

.05 

.04

Tons 

per day

13,500 

14,900 

10,200 

8,460 

8,500

8,780 

12,500 

10,700 

12,300 

8,800

9,440 

9,250 '

8,800 

8,880 

7,040

September 1943

Mean 

discharge 

(secondfeet)

5,860 

5,690 

5,530

5,440 

5,340 

5,220 

5,240 

5,210

5,410 

6,230 

8,440 

8,820 

6,580

Suspended sediment

Mean 

concentration 

(percent)

0.10 

.07 

.06

.06 

.06 

.04 

.04 

.04

.05 

.19 

.34 

3.03 

1.44

Tons 

per day

15,800 

10,800 

8,960

8,810 

8,650 

5,640 

5,660 

5,630

7,300 

32,000 

77,500 

722,000 

256,000
COLORADO RIVER BELOW BOULDER DAM, ARIZ

LOCATION. At gaging station, 1 mile downstream from Boulder Dam.

DRAINAGE AREA. 167,800 square miles.

RECORDS AVAILABLE. Chemical analyses: October 1939 to September 1943. (See table on 

Water temperatures: October 1941 to September 1943. 

EXTREMES, 1942-43. Dissolved solids: Maximum, 704 parts per million Oct. 1-10; minimu

Total hardness: Maximum, 376 parts per million Oct. 11-20; minimum, 322 parts per mil

Water temperatures: Maximum, 62°F. Nov. 11-Dec. 10; minimum, 55°F. Jan. 21-Feb. 1

EXTREMES, 1939-43. Dissolved solids:. Maximum, 824 parts per million Mar. 1-10, 1941;. m

Total hardness: Maximum, 426 parts per million Jan. 21-31, 1941; minimum, that of Dec

Water temperatures: Maximum, 65°F. Oct. 1-10, 1941; minimum, 55°F. Feb. 20-Apr. 30

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 194

Date of collection

Oct. 1-3, 5-10, 1942.......

Oct. 12-17, 19-20 

Oct. 21-24, 26-31 

Nov. 1-7,9-10 ........

Nov. 11-14, 16-20 

Nov. 21, 23-28, 30 . 

Dec. 1-5, 7-10 -..

Dec. 11-12, 14-19 

Dec. 21-24, 26, 28-31 

Jan. 1-2, 4-9, 1943 .

Jan. 11, 14, 16, 18-19..... 

Jan. 23, 26-30 ..

Feb. 1-6, 8-10 

Feb. 11, 15-20............

Feb. 22-26 ... .... .. ...

Mar. 1-6, 8-10... ..;...

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

.Mar. 22-31. .............

Mean 

discharge 

(secondfeet)

21,820 

16,640 

18,320 

18,200 

18,680 

18,320

19,660 

19,050 

17,820 

18, 170 

19,980 

16,160

15,160 

14,730 

14,510 

15,760 

15,940 

15,660

Temperature

(°F.)

61 

61 

61 

61 

62 

62

62 

61 

59 

58 

57 

55

55 

56 

55 

55 

55 

55

Specific 

conductance 

(KX105 

at 25° C.1

107 

108 

105 

102 

102 

95.2

94.9 

94.2 

93.8 

94.1 

95.1 

98.2

98.8 

99.9 

101 

103 

104 

101

Silica 

(SiOa)

10 

11 

13 

12 

9.0 

15

14 

12 

12 

12 

11 

12

12 

11 

11 

12 

13 

14

Iron

(Fe)

0.03 

.05 

.04 

.04 

.07 

.04

.04 

.04 

.04 

.08 

.12 

.04

.04 

.04 

.95 

.04 

.05 

.02

Calcium 

(Ca)

102 

101 

102 

99 

97 

90

90

88 

88 

90 

89 

92

92 4 

9.V 

96 

96 

95 

98

Magnesium

(Mg)

 28 

30 

28 

26 

29- 

24

24 

25 

25 

24 

26 

26

t 25 

25 

25 

25 

27 

27

Q PodlTm *- 

(Na) »

91

85 

89 

88 

82 

85

86 

83 

81

85 

86 

88

86 

89 

91 

91 

97 

92

Bicarbonate 

(HCOs)

163 

156 

160 

159 

157 

155

152 

151 

151 

150 

149 

153

152 

156 

159 

159 

162 

165

Sulfate 

(S04)

322 

316 

317 

305 

305 

285

288 

285 

282 

287 

292 

300

295 

300 

302 

303 

316 

309

Chloride 

(H)

68 

70 

70 

66 

64 

59

59 

57 

56 

59 

61 

62

61 

61 

65 

65 

66 

68
Apr. 1-3, 6-10 . .....

Apr. 12-17, 19-20 

Apr. 21, 23-24,26-30...,. 

May 1,3-8, 10 __ ......

May 11-15, 18-20... .....

May 21-22, 24-31........

June 1-5, 7-9 ____ .....

June 11-12, 14-15, 17-19._ 

June 2 1-26, 28-30- -----

July 1-3, 7-10 . ........

July 12-17, 19-20 ...

July 21-31-.... .--.-..

Aug. 1-7, 9-10...........

Aug. 11-14, 16-20------

Aug. 21, 23-31...........

Sept. 1-4, 6-10... ........

Sept. 11, 13-20..........

Sept. 21-25, 27-30 ....

Weighted average. ...

15,540

15,120

15.490 

15,620

17,780

16,720

17,070 

18,660

18.560

18,400

17,230

16, 140

17 600

17,100

17, 150

16,860

18,510

17,260

55

56

56 

56

56

56

56

56 

56

57

57

58

58

58

58

59

59

60

......

99.4

105

104 

105

103

104

103

103 

102

102

101

103

103

104

104

103

103

102

101

13

16

12 

14

14

14

14

14 

14

15

13

12

13

13

14

12

12

12

13

05

.02

.02 

.02

AO

.02

.02

.02 

08

.10

.05

.04

.04

.02

.02

.02

.05

.04

0.04

97

98

98

QQ

Q7

QO

95

96

07

96

96

95

Qfi

Q9

95

95

94

92

95'

26

29

27

27

O7

26

26

26 

26

26

25

26

26

27

27

26

26

26

98

91

94 

93

os

95

94

95 

92

89

8S

89

91

93

91

90

94

92

90

160

164

166 

160

163

158

157

130

164

160

160

159

159

159

163

160

162

158

158

315

315

314 

316

311

305

310

311 

305

302

298

299

307

305

304

303

- 303

300

303

69

66

66 

67

66

67

66

67 

67

65

64

65

65

65

65

63

65

64

64

Chemical analyses, in equivalents per million, water year October 

Oct. 1-3, 6-10, 1942......

Oct. 12-17, 19-20. ....

Oct. 21-24, 26-31 .. .

Nov. 1-7,9-10 ........

Nov. 11-14, 16-20 ... -

Nov. 21, 23-28, 30. ....

Dec. 1-5, 7-10 ....

Dec. 11-12, 14-19-------

Dec. 21-24, 26, 28-31 

Jan. 1-2, 4-9, 1943. ......

Jan. 11, 14, 16, 18-19-.,.

Jan. 23, 25-30,.. ......

Feb. 1-6, 8-10.... ... .

Feb. 11,15-20...........

Feb. 22-26 ...........

Mar. 1-6, 8-10..-. ..... .

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

Mar. 22-31. ............ .

21,820

16,640

18,320

18,200

18,680

18,320

19,660

19,050

17,820

18,170

19,980

16, 160

15,160

14,730

14,510

15,760

15,940

15,660

-

5.09

5.04

5.09

4.94

4.84

1 10

4.49

4.39

4.39

i 10

4.44

4 

en

4.59

1 Ki

4.79

1 7O

4.74

4.89

2.30

2.47

2.30

2.14

2.38

1.97

1.97

2.06

2.06

1.97

2.14

2.14

2.06

2.06

2.06

2.06

2 22

2.22

3.96

3.69

3.87

3.81

3.56

3.71

3.73

3.61

3.52

3,70

3V2

3.84

3.73

3.88

3.94

3.96

4 20

4.01

2.67

2.56

2.62

2.61

2.57

2.54

2.49

2.48.

2.48

2.46

2.44

2.51

2.49

2.61

2.61

2.66

2 70

6.70

6.58

6.60

6.35

6.35

5.93

6.00

5.93

5.87

5.98

6.08

6.25

6.14

5.25

6.29

6.31

6.58

6.43

1.92

1.97

1 97

1.86

1.81

1.66

1.66

1.61

1.58

1.66

1.72

1.75

1.72

1.72

1.83

1.83

1.86

1.92
COLORADO RIVER BELOW BOULDER DAM, ARIZ.-NEV

Chemical analyses, in equivalents per million, water year October 19J$ to 

Date of collection

Apr. 1-3, 5-10...........

Apr. 12-17, 19-20.. ......

Apr. 21, 23-24, 26-30 

May 1, 3-8, 10 

May 11-15, 18-20. 

May 21-22, 24-31. 

June 11-12, 14-15, 17-19..

June 21-26, 28-30 .

July 1-3, 7-10 ..

July 12-17, 19-20.... 

July 21-31..... .

Aug. 1-7, 9-10...........

Aug. 11-14, 16-20. 

Aug. 21, 23-31... _ . _ .

Sept. 1-4, 6-10 

Sept. 11, 13-20....... ....

Sept. 21-25, 27-30 

Mean 

discharge 

(secondfeet)

15,540

15,120

15,490 

15,620

16,740 

17,750

16,720 

17,070

18,660

18,560

18,400

17,230 

16,140

17,600 

17,100

17,150 

16,860

18,510

17,260

Temperature 

(°F.)

Specific 

conductance 

(KX106 

at 25° C.)

Silica 

(SiOii)

Iron

(Fe)

Calcium 

(Ca)

4.84 

4.89 

4.89 

4.94 

4.84 

4.64

4.74 

4.79 

4.84 

4.79 

4.79 

4.74

4.79 

4.59 

4.74 

4.74 

4.69 

4.59

4.74

Magnesium 

(Mg)

2.14 

2.38 

2.22 

2.22 

2.22 

2.14

2.14 

2.14 

2.14 

2.14 

2.06 

2.14

2.14 

2.22 

2.22 

2.14 

2.14 

2.14

2.14

Sodium 

(Na)

Potassium 

(K)

4.24 

3.94 

4.09 

4.06 

4.11 

4.14

4.08 

4.12 

4.02 

3.87 

3.83 

3.86

3.97 

4.06 

3.96 

3.91 

4.07 

4.02

-3.91

Bicarbonate 

(HCOs)

2.62 

2.69 

2.72 

2.62 

2.67 

2.59

2.57 

2.62 

2.69 

2.62 

2.62 

2.61

2.61 

2.61 

2.67 

2.62 

2.66 

2.59

2.59

Sulfate

(S04)

6.56 

6.56 

6.54 

6.58 

6.54 

6.35

6.45 

6.47 

6.35 

6.29 

6.20 

6.23

6.39 

6.35 

6.33 

6.31 

6.31 

6.25

6.31

Chloride 

(01)

1.95

1.86 

1.86 

1.89 

1.86 

1.89

1.86 

1.89 

1.89 

1.83 

1.81 

1.83

1.83 

1.83 

1.83 

1.78 

1.83 

1.80

1.81
COLORADO RIVER AT YUMA, ARIZ.

LOCATION. Oct. 1, 1942, to Jan. 31, 1943, at gaging station, 1,800 feet downstream from hi

Gila River, 19 miles downstream from Imperial Dam, and 7 and 29 miles upstream from i

respectively, with Mexico.

Feb. 1 to Sept. 30, 1943, at gaging station on Yuma main canal below Colorado River siphon

steam from siphon drop power plant.

DRAINAGE AREA. 242,900 square miles, including all closed basins entirely within the drainag

RECORDS AVAILABLE .-Chemical analyses: September 1926, October 1926 to September 19

on page 167.) 

EXTREMES, 1942-1943. Dissolved solids: Maximum. 729 parts per million June 1-10; minim

Total hardness: Maximum, 374 parts per million Oct. 1-10; minimum, 324 parts per millio

EXTREMES, 1926-28,1942-43. Dissolved solids: Maximum, 1,300 parts per million Jan. 11-20

1928.

Total hardness: Maximum, 567 parts per million Oct. 21-31, 1926; minimum, 163 parts pe

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

COOPERATION. Analyses for period Oct. 1, 1942, to Jan. 31, 1943, were furnished by the U. S. 

Riverside, Calif.

Chemical analyses, in parts per million, water year October 194% 

Date of collection

Get. 1-10, 1942..........

Oct 11-20

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

NOT. 1-10...............

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

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

TWi. 1-10... ^ _ . ..

Dee. 11-20..............

Hun 91 31

Jan. 1-10, 1943... .......

Jan. 11-20. ... ..... ...

Jan. 22. 24-31. ..........

Mean 

discharge 

(secondfeet)

5,559 

5,334 

6,520 

10,840 

U.640 

10,210

12,970 

16,250 

14,280 

11,200 

10,660 

12.670

Specific 

conductance 

(KX105 

at 

25° C.)

113 

113 

112 

110 

111 

108

JOB

102 

101 

100 

101 

99.6

Silica 

(Si02)

Iron

(Fe)

Calcium 

(Ca)

103 

103 

102 

102 

101 

99

9«

94 

93 

93 

93 

91

Magnesium 

(Mg)

29 

27 

27 

26 

27 

26

26 

26 

24 

25 

25 

24

Sodium 

(Na)

104 

103 

101 

100 

98 

97

92 

89

88 

88 

87 

86

Potassium 

(K)

Bicarbonate 

(HCOs)

164 

160 

157 

160 

164 

163

157 

157 

154 

160 

157 

157

Sulfate 

(SO*)

336 

334 

332 

328 

327 

319

310 

298 

294 

290 

291 

288

Chloride 

(CD

82 

78 

78 

. 74 

74 

73

60 

67 

66 

67 

67 

66

Fluoride 

(F)

See footnotes at end of table.
COLORADO RIVER AT YUMA, ARIZ. Continued

Chemical analyses, in parts per million, water year October 1942 to Sep

Date of collection

Feb. 1-6, 8-10. ..........

Feb. 11-13, 15-20-- 

Feb. 22-27--. ..... 

Mar, 1-6, 8-10 . 

Mar. 11-13, 15-20.......

Mar.22-27, 29-31 

Apr. 1-3,5-10 

Apr. 12-17, 19-20. 

Apr. 21-24, 26-30.. ..... .

May 1, 3-8, 10 . 

May 11-15, 17-20. 

May 21-22, 24-29, 31 

June 1-5, 7-10 ....... .

June 11-12, 14-19... . .

June 21-26, 28-30. .... ...

July 1-3, 5-10--.. ...

July 12-17, 19-20... . .

July 21-24, 26-31........

Aug. 2-7, 10 .... ......

Aug. 11-13, 17-20.- ..

Aug. 21, 23-28, 30-31.. ... 

Sept. 14-4, 6-10.. . ....

Sept. 11, 13-18, 20.,.. 

Weighted average. ...

Mean 

discharge 

(secondfeet)

9,968 

6,928 

5,902 

7,786 

7,006 

7,502

6,717 

7,605

7,368 

7,588 

7,696 

8,618

8,746 

8,931 

9,426 

9,544 

9,532 

10,390

8,909 

9,421 

9,900 

9,511 

9,54? 

9,660

9,265

Specific 

conductance 

(KX1Q6 

at 

25° C.)

100 

103 

104 

101 

102 

103

105 

105 

106 

107 

 108 

108

108 

106 

107 

108 

108 

107

107 

106 ' 

107 

106 

(105 

105

105

Silica 

(SiOz)

8.0 

11 

12 

14 

14 

13

12 

16 

16 

14 

14 

14

14 

16 

15 

14 

12 

12

10 

12 

14 

13 

26 

14

214

Iron

(Fe)

0.05 

.15 

.15 

.02 

.02 

.02

.02 

.02 

.02 

.02 

.02 

.02

.02 

.03 

.02 

.04 

.06 

.04

.04 

.04 

.03 

.02 

.03 

.04

=0.04

Calcium 

(Ca)

94 

99 

101 

94 

96 

96

98 

94 

94 

98 

100 

100

102 

95 

98 

93 

96 

95

94 

94 

93

«

93

96

Magnesium

(Mg)

25 

24 

25 

26 

27 

27

26

28 

27 

28 

28 

29

28 

27 

28 

27 

27 

27

27 

27 

27 

26 

27 

27

26

Sodium

(Na)

Potassium 

(K)

94 

97 

91 

99 

96 

98

101 

98 

102 

98 

100 

97

99 

102 

101 

99 

98 

97

97 

97 

98 

99 

101 

95

'96

Bicarbonate 

(HCOa)

159 

163 

161 

166 

164 

166

168 

148 

148 

157 

160 

157

166 

153 

167 

149 

159 

154

157 

156 

159 

156 

150 

155

158

Sulfate 

(SOi)

296 

308 

305 

305 

306 

309

312 

319 

323 

323 

326 

327

326 

323 

321 

319 

316 

314

311 

310 

309 

309 

312 

307

312

Chloride

(Cl)

72 

72 

72 

71 

73 

73

75 

75

76 

75

77 

77

76 

74 

74 

73 

73 

73

72 

73 

72 

72 

72 

72

72

Fluoride

(F)

0.2 

.2 

.2 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2 

.2

.2 

.5 

.5 

.2 

.2 

.3

.3 

.3 

.4 

.4 

.4 

.3

20.3

i Based on sum of determined constituents plus estimated value of 14p.p.m. of SiOa. 

- Based on analytical results for Feb. 1 to Sept. 30.

3 Based on determined 

plus potassium for the rem

4 Based on weighted-aver
COLORADO RIVER AT YUMA, ARIZ. Continued

Chemical analyses, in equivalents per million, water year October 19

Oct. 1-10, 1942..........

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

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

Nov. 1-10 

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

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

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

Dec. 11-20 ..... ......

Dec. 21-31..............

Jan. 1-10, 1943..........

Jan. 11-20 - . .

Jan. 22, 24-31... ....:...

Feb. 1-6, 8-10.. 

Feb. 11-13, 15-20.. ...

Feb. 22-27.. ........... .

Mar. 1-6, 8-10 ......

Mar, 11-13, 15-20 

Mar. 22-27, 29-31. .......

Apr. 1-3,5-10,-- ..

Apr. 12-17, 19-20.. .. ....

Apr. 21-24, 26-30... .... .

May 1,3-8, 10... ______..

May 11-15, 17-20 -

May 21-22, 24-29, 31... . .

June 1-5, 7-10..- ...

June 11-12, 14-19,. .

June 21-26,28-30........

July 1-3, 5-10. ..... ..

July 12-17, 19-20- 

July 21-24, 26-31.. 

B*PH afl^H*- *

Aug. 2-7, 10 

Aug. 11-13, 17-20 

Aug. 21, 23-28, 30-31.. 

Sept, 1-4, 6-10 -. .....

Sept. 11, 13-18, 20... ....

Sept. 21-30 

5,559

5,334

6,520

10,840 

11,640

10,210

12,970

16,250

14,280

11,200 

10.660

12,670

9,968

6,928

5,902

7,786

7,006 

7,502

6,717

7,605

7,368

7,588

7,696

8,618

8,746

8,931

9,426

9,544 

9,532

10,390

8,909

9,421

9,900

9,511

3,547

9,660

9,265

 ----- ......

"

*

------

5.14 

5.12 

5.10 

5.10 

5.05 

4.94

4.80 

4.70 

4.64 

4.63 

4.65 

4.55

4.69 

4.94 

5.04 

4.69 

4.79 

4.79

4.89 

4.69 

4.69 

4.89 

4.99 

4.99

5.09 

4.74 

4.89 

4.64 

4.79 

4.74

4.69 

4.69 

4.64 

4.64 

4.44 

4.64

4.79

2.35 

2.22 

2.19 

2.16 

2.23 

2.16

2.10 

2.15 

1.98 

2.04 

2 03 

1.94

2.06 

1.97 

2.06 

2.14 

2.22 

2.22

2.14 

2.30 

2.22 

2.30 

2.30 

2.38

2.30 

-2.22 

2.30 

2.22 

2.22 

2.22

2.22 

2.22 

2.22 

2.14

2.22 

2.22

2.14

4.52 

4.46 

4.40 

4.34 

4.27 

4.20

4.01 

3.86 

3.81 

3.82 

3.77 

3.75

4.0 

 4.2 

3.9 

4.3 

4.1 

4.2

4.3 

4.2 

4.4 

4.2 

4.3 

4.2

4.3 

4.4 

4.3 

4.3 

4.2 

4.2

4.2 

4.2 

4.2 

4.2

A £ 4'.1

8 

3 

5 

0 

7 

6

9 

5 

2 

6 

3 

2

0 

2 

8 

1 

7 

0

0 

0

5 

9

4

14.17

2.68 

2.62 

2.57 

2.63 

2.68

2.67

2.57 

2.58 

2.53 

2.62 

2.58 

2.58

2.61 

2.67 

2.64 

2.72 

2.69 

2.72

2.75 

2.43 

2.43 

2.57 

2.62 

2.57

2.72 

2.51 

2.74 

2.44 

2.61 

2.52

2.57 

2.56 

2.61 

2.56 

2.43 

2.54

2.59

7.00 

6.96 

6.91 

6.82 

6.81

6.64

6.46 

6.21 

6.12 

6.03 

6.05 

5.99

6.16 

6.41 

6.35 

6.35 

6.37 

6.43

6.50 

6.64 

6.72 

6.72 

6.79 

6.81

6.79 

6.72 

6.68 

6.64 

6.58 

6.54

647 

6.45 

fi.43 

6.43 

0.50 

6.39

6.50

2.30 

2.20 

2.20 

2.10 

2.10

2.05

1.95 

1.90 

1.85 

1.90 

1.90 

1.85

2.03 

2.03 

2.03 

2.00 

2.06 

2.06

2.12 

2.12 

2.14 

2.12 

2.17 

2.17

2.14 

2.09 

2.09 

2.06 

2.06 

2.06

2.03 

2.06 

2,03 

2.03 

2.03 

2.03

2.03

0.01 

.01 

.01 

.02 

.02 

.02

.02 

.01 

.01 

.01 

.01 

.01

.01 

.03 

.03 

.01 

.01 

.02

.02 

.02 

.02 

.02 

.02 

.02

20.02

1 Based on determined values for sodium for Oct. 1-Jan. 31 and calculated values of sodium 

phis potassium for the remainder of the year.

2 Based on analytica
100 QUALITY OF SURFACE WATERS, 1943

GUNNISON RIVER NEAR GRAND JUNCTION, COLO.

LOCATION. Half a mile upstream from point of diversion of Redlands power canal

and 3 miles upstream from mouth and Grand Junction. 

DRAINAGE AREA. Approximately 8,020 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1931 to September 1943. (See

table on page 167.) 

EXTREMES, 1942-43. Dissolved solids: Maximum, 2,000 parts per million Oct. 1-10;

minimum, 220 parts per million Apr. 21-30. 

EXTREMES, 1931-43. Dissolved solids: Maximum, 2,980 parts per million July

21-31, 1937; minimum, that of Apr. 21-30, 1943. 

Total hardness (1931-35): Maximum, 1,370 parts per million Sept. 1-20, 1934;

minimum, 143 parts per million June 1-10, 1933. 

REMARKS. Records of discharge for water year October 1942 to September 1943 are

given in Water-Supply Paper 979.

Dissolved solids, vn parts per million, and discharge, in second-feet, 

water year October 194% to September 1943

Date of 

collection

1942 

Oct. 1-10 

Oct. 12-20. ..........

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

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

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

Nov. 21-30 - .. __ ..

Dec. 1-5, 7-10... _

Dec. 11-20....... ..... .

Dec. 22-31... 

1943

Jan. 1,3, 5-10 

Jan. 11-20... ...........

Jan. 21-26, 30-31... .

Feb. 1-10-.. ... 

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

Feb. 21-2S--. 

Mar. 1-10.. 

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

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

Dissolved 

solids

2,000

1,956

1,790

1,438

1,396

1,408

1,340

1,380

1,268

1,296

1,300

1,232

1,211

1,163

1,157

1,161

1119

1,154

Mean 

discharge *

801

966

1,014

1,181

1,094

1,075

1,018

927

954

873"

877

1 024

836

847

923

850

HQ7

983

Date of 

collection

1943 

Apr. 1-10.-. . . 

Apr. 11-20-. 

Apr. 21-30. T . - 

May 1-10 

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

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

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

June 21-30.. ...........

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

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

July 21-31. ... ... .

Aug. 1-10:.. . 

Aug. 11-20 

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

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

Sept. 11-20 

Sept. 21-30 . ...

Dissolved 

solids

510

418

220

296

433

396

355

341

319

530

938

1,449

1,406

1,062

880

910

1,369

1,551

1,060

675

Mean 

discharge 1

2,724

3,253

8,016

9,933

4,346

4,835

7,624

6,222

6,186

3,255

1,465

897

1,586

2,633

3,205

2,366

1,010

1,021

2,432

1 Includes flow of Redlands power canal.
COLOEADO EIVEE BASIN 101

* GREEN RIVER AT GREEN RIVER, UTAH

LOCATION. At gaging station, 1 mile southeast of town of Green River and 22 miles

upstream from San Rafael River. 

DRAINAGE AREA. 40,600 square miles. 

RECORDS AVAILABLE. Chemical analyses: October 1928 to September 1943. (See

table on page 167.)

Sediment records: May 1939 to September 1943. 

EXTREMES, 1942-43. Dissolved solids, 2,010 parts per million Sept. 29; minimum,

272 parts per million May 1-10. 

Sediment loads: Maximum, 598,000 tons per day Aug. 7; minimum, less than

200 tons per day Oct. 6. 

EXTREMES, 1928-43. Dissolved solids: Maximum, that of Sept. 29, 194?; minimum,

194 parts per million, June 21-30, 1933. 

Total hardness (1928-35): Maximum, 488 parts per million Dec. 21-31, 1932;

minimum, 128 parts per million June 21-31, 1933. 

Sediment loads: Maximum, 2,230,000 tons per day July 11, 1936; minimum, less

than 100 tons per day on several days.

REMARKS. Records of discharge for water year October 1942 to September 1943 are 

given in Water-Supply Paper 979.

Dissolved solids, in parts per million, and discharge, in second-feet, 

water year October 194$ to September 1943

Date of 

collection

194^ 

Oct. 1-10..... , 

Oct. 12-20 ...........

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

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

Nov. 11-20 

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

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

Dec. 11-20. 

Deo. 21-31.. 

1943

Jan. 1-10.^.. __! _. ..

Jan. 11-20 

Jan. 21-31. _____

Feb. 2-10... _ ........

Feb. 11-20--. 

Feb. 21-28... ..........

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

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

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

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

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

Dissolved 

solids

834

952

864

C7A

fiftfl

855

fi7S

910

881

843

876

804

764

775

728

' 694

660

 sun

441

Mean 

discharge

1,462

2,094

2,158

2

AQQ

2,086

2,118

1

01**

1,882

1 Ofil

1,849

1,725

1,870

1,897

2,068

3,220

3,343

3,955

7,158

8,387

Date of 

collection

1943 

Apr. 21-23, 26-30.- .

May 1-10-. .

May 11-17, 19-20.. .....

May 21-26, 28-31 

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

June 2 1-22,25-30 .

July 1-10.. ...

July 11-17, 19-20... .

July 21-24, 28-31.......

Aug. 1-4, 8-10 .......

Aug 6~7

Aug. 11-16, 18-20... ... .

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

Sept. V-9 ... .

Sept. 11-20 -----

Sept. 21-28. .....

Sept. 20..... ........

Dissolved 

solids

341

272

289

311

318

277

285

298

300

367

451

1,050

593

577

638

624

654

2,007

668

442

Mean 

discharge

13,160

17,040

11,850

'8,705

21,890

15,660-

16,600

15,770

8,858

5,665

5,540

6,070

5,282

3,818

2,435

1,856

1,541

1,750

5,900
102 QUALITY OF SURFACE WATERS, 1943

GREEN RIVER AT GREEN RIVER, UTAH Continued

Suspended sediment, water year October 1942 to September 1943

October

Day

1 

2.......

3. __ .__.

4.......

5.......

6.......

7.......

8 

9.......

10 

11 .....

12......

13......

14......

15......

16......

17 

18 ...

19.. 

20......

21......

22......

23......

24......

25 

26......

27 

28......

29......

30......

31 ..

Tot

Mean 

discharge 

(secondfeet)

1,550 

1,520 

1,480 

1,470 

1,470 

1,430 

1,420 

1,420 

1,430 

1,430 

1,500 

1,900 

1,900 

2,040 

2,200 

2,340 

2,620 

2,300 

2,080 

2,060 

2,180 

2,340 

2,300 

2,280 

2,200 

2,140 

2,080 

2,080 

2,080 

2,040 

2,020

al load (ton

Suspended sediment

Mean 

concentration 

(percent)

0.04 

.03 

.03 

.02 

.01 

.00 

.01 

.01 

.01 

.01 

.04 

.13 

.15 

.20 

.20 

.15 

.19 

.72 

.18 

.28 

.30 

.13 

-08 

.08 

.05 

.05 

.11 

.12 

.09 

.06 

.05

3). ..-.

Tons 

per day

1,670 

1,230 

1,200 

794 

397 

0 

383 

383 

386 

386 

1,620 

6,670 

7,700 

11,000 

11,900 

9,480 

13,400 

44,700 

10, 100 

15,600 

17,700 

8,210 

4,970 

4,920 

2,970 

2,890 

6,180 

6,740 

5,050 

3,300 

2,730

204,700

January 

1 

2.......

3.......

4.......

5.......

6.......

7.......

8.......

9.......

10......

11 

12......

13......

14......

15......

16......

17......

18......

19......

20......

21... ...

22......

23...... 

24...... 

25...... 

26...... 

27 ... 

28...... 

29 . 

30...... 

31......

Tot

1,900 

2,080 

2,060 

1,940 

1,940 

2,100 

1,810 

1,660 

1,500 

1,500 

1,640 

1,660 

1,680 

1,750 

1,880 

2,000 

1,840 

1,700 

1,600 

1,500 

1,400 

1,420 

1,460 

1,540 

1,710 

1,940 

2,100 

2,380 

2,400 

2,160 

2,060

al load (ton

0.02 

.02 

.02 

.02 

.02 

.02 

.02 

.01 

.01 

.02 

.02 

.02 

.01 

.02 

.01 

.02 

.01 

.02 

.02 

.01 

.01 

.02 

.01 

.01 

.01 

.01 

'.01 

.01 

01 

.02 

.01

0 ......

1,030 

1,120 

1,110 

1,050 

1,050 

1,130 

977 

448 

405 

810 

886 

896 

454 

945 

508 

1,080 

497 

918 

864 

405 

378 

767 

394 

416 

462 

524 

567 

643 

648 

1,170 

556

23,110

November

Mean 

discharge 

(secondfeet)

2,040 

2,040 

2,060 

2,040 

2,000 

2,000 

2,020 

2,040 

2,020 

2,020 

2,100 

2,120 

2,080 

2,060 

2,020 

2,020 

2,040 

2,100 

2,160 

2,160 

2,180 

2,160 

2,220 

2,240 

2,200 

2,140 

2,080. 

2,020 

1,960 

1,980

Suspended sediment

Mean 

concentration 

(percent)

0.03 

.04 

.04 

.04 

.04 

.04 

.04 

.03 

.03 

.03 

.03 

.03 

.03 

.02 

.02 

.01 

.02 

.02 

.02 

.02 

.02 

.02 

.01 

.02 

.02 

.02 

.03 

.02 

.02 

.03

Tons 

per day

1,650 

2,200 

2,220 

2,200 

2,160 

2,160 

2,180 

1,650 

1,640 

1,640 

1,700 

1,720 

1,680 

1,110 

1,090 

545 

1,100 

1,130 

1,170 

1,170 

1,180 

1,170 

599 

1,210 

1,190 

1,160 

1,680 

1,090 

1,060 

1,600

44,050

February

1,940 

1,900 

2,040 

2,040 

1,900 

1,900 

1,790 

1,710 

1,810 

1,940 

1,680 

1,920 

1,880 

1,880 

1,980 

2,100 

2,200 

2,280 

2,340 

2,420 

2,470 

2,570 

2,790 

3,040 

3,340 

3,610 

3,930 

4,010

0.01 

.01 

.02 

.02 

.02 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.01 

.02 

.01 

.02 

.02 

.02 

.04 

.04 

.04 

.04 

.06 

.08 

.09 

.12 

.12

524 

513 

1,100 

1,100 , 1,030 

513 

483 

462 

489 

524 

454 

518 

508 

508 

1,070 

567 

1,190 

1,230 

1,260 

2,610 

2,670 

2,780 

3,010 

4,920 

7,210 

8,770 

12,700 

13,000

71,710

December

Mean 

discharge 

(secondfeet)

2,080 

2,020 

2,120 

2,220 

2,260 

2,120 

1,840 

1,260 

1,060 

1,150 

1,420 

1,480 

1,700 

2,100 

2,120 

2,080 

2,020 

2,000 

1,980 

1,920 

1,940 

2,000 

1,880 

1,980 

1,940 

1,940 

2,100 

2,100 

2,080 

2,020 

1,810

Suspended sediment

Mean 

concentration 

(percent)

0.02 

.03 

.02 

.02 

.03 

.03 

.02 

.03 

.03 

.04 

.03 

' .04 

.03 

.03 

.02 

.02 

.02 

.02 

.02 

.01 

.02 

.02 

.02 

.01 

.02 

.02 

.02 

.02 

.02 

.03 

.02

Tons 

per day

1,120 

1,640 

1,140 

1,200 

1,830 

1,720 

994 

1,020 

859 

1,240 

1,150 

1,600 

1,380 

1,700 

1,140 

1,120 

1,090 

1,080 

1,070 

518 

1,050 

1,080 

1,020 

535 

1,050 

1,050 

' 1,130 

1,130 

1,120 

1,640 

977

38,390

Manh

3,900 

3,820 

3.760 

3,540 

3,240 

3,010 

2,990 

3,080 

3,100 

2,990 

3,130 

3,640 

4,060 

4,180 

4,060 

3,980 

4,260 

5,270 

5,000 

4,350 

4,010 

3,820 

3,680 

3,540 

3,390 

3,290 

3,340 

3,560 

4,120 

4,780 

5,980

0.10 

.08 

.07 

.09 

.09 

.07 

.06 

.06 

.07 

.07 

.06 

.12 

.17 

.30 

.24 

.24 

.20 

.28 

.30 

.30 

.24 

.20 

.13 

.12 

.09 

.08 

.08 

.09 

.11 

.19 

,42

10,500 

8,250 

7,100 

8,600 

7,870 

5,690 

4,840 

4,990 

5,860 

5,650 

5,070 

11,800 

18,600 

33,900 

26,300 

25,800 

23,000 

39,800 

40,500 

35,200 

26,000 

20,600 

12,900 

11,500 

8,240 

7,110 

7,210 

8,650 

12,200 

24,500 

67,800

536,000
COLORADO RIVER BASIN 103

GREEN RIVER AT GREEN RIVER, UTAH Continued

Aprfl

Day

I.......

2 

3.......

4 ....

5 .

6 

8 

9 

10 

11 

12...... 

13......

14......

15 

16 

17 

18.... .

19......

20......

21......

22 

23......

24......

25 

26.. .

27 

28 

29......

30......

31

Mean 

discharge 

(secondfeet)

7,450 

7,140 

7,590 

7,630 

7,100 

6,360 

6,170 

6,400 

7,320 

8,420 

9,050 

9,490 

9,150 

8,520 

8,000 

7,500 

7,320 

7,410 

8,090 

9,340 

10,300 

10,800 

11,500 

12,500 

13,300 

13,700 

13,900 

14,900 

15,700 

15,000

Total load (ton

Suspended sediment

Mean 

concentration 

(percent)

0.72 

.76 

.97 

.81 

.71 

.57 

.49 

.37 

.36 

.40 

.39 

.36 

.28 

.28 

.20 

.16 

.14 

.14 

.17 

' .20 

.29 

.35 

.37 

.40 

.45 

.47 

.42 

.46 

.47 

.39

0 -

Tonsper day

145,000 

147,000 

199,000 

167,000 

136,000 

97,900 

81,600 

63,900 

71,200 

90.900 

95,300 

92,200 

69,200 

64,400 

43,200 

32,400 

27,700 

28,000 

37,100 

50,400 

80,600 

102,000 

115,000 

135,000 

162,000 

174,000 

158,000 

185,000 

199,000 

158,000

3,208,000

July

1 

2.......

3.......

4.......

5.......

6.......

7.......

8.......

9.......

10......

11 .

12......

13......

14.-...

15 

16......

17 

18......

19 

20......

21......

22......

23...... 

24...... 

25 . 

26...... 

27...... 

28 

29...... 

30...... 

31......

Tot

18,600 

18,200 

17,600 

18,100 

16,800 

15,500 

14,600 

13,700 

12,700 

11,900 

11,100 

10,400 

9,780 

9,200 

8,760 

8,380 

8,140 

7,860 

7,680 

7,280 

6,850 

6,440 

6,200 

5,900 

5,580 

 5,440 

5,270 

5,270 

5,230 

5,130 

5,000

al load (tons

0.30 

.32 

.26 

19 

.15 

.15 

.13 

.13 

.11 

.10 .11' 

.08 

.10 

.08 

.06 

.06 

.06 

.06 

.12 

.06 

.08 

.05 

.06 

.07 

.09 

.06 

.06 

.05 

.05 

.10 

 .08

). 

151,000 

157,000 

124,000 

92,900 

68,000 

62,800 

51,200 

48,100 

37,700 

32,100 

33,000 

22,500 

26,400 

19,900 

14,200 

13,600 

13,200 

12,700 

24,900 

11,800 

14,800 

8,690 

10,000 

11,200 

13,600 

8,810 

8,540 

7,110 

7,060 

13,900 

10,800

1,132,000

May

Mean 

discharge 

(secondfeet)

13,900 

13,600 

14,700 

16,200 

17,600 

18,200 

19,000 

20,100 

19,400 

17,700 

15,800 

14,200 

13,000 

12,200 

11,400 

10,900 

10,700 

10,400 

10,200 

9,730 

9,290 

8,850 8,420' 

7,950 

7,540 

7,500 

7,630 

8,050 

8,900 

9,930 

11,700

Suspended sediment

Mean 

concentration 

(percent)

0.34 

.31 

.33 

.32 

.40 

.44 

.38 

.41 

.37 

.37 

.31 

.28 

.22 

.18 

.16 

.15 

.14 

.14 

.14 

.12 

.14 

.09 

.08 

.08 

.08 

.08 

.07 

.09 

.12 

.13 

.22

Tons 

per day

128,000 

114,000 

131,000 

140,000 

190,000 

216,000 

195,000 

223,000 

194,000 

177,000 

132,000 

107,000 

77,200 

59,300 

49,200 

44,100 

40,400 

39,300 

38,600 

31,500 

35,100 

21,500 

18,200 

17,200 

16,300 

16,200 

14,400 

19,600 

28,800 

34,900 

69,500

2,618,000

August

5,000 

4,940 

4,970 

6,170 

7,230 

5,940 

6,200 

5,370 

5,470 

5,170 

5,230 

5,000 

5,440 

5,860 

5,540 

5,170 

5,130 

4,680 

4,720 

6,050 

5,130 

4,840 

4,290 

3,950 

3,710 

3,610 

3,480 

3,440 

3,340 

3,. 170 

3,040

0.80 

.06 

.05 

.10 

.49 

3.38 

3.57 

.86 

.55 

.62 

.87 

.59 

.48 

.64 

.46 

. .45 

1.87 

.42 

.51 

.94 

1.49 

1.44 

.88 

.65 

.32 

.16 

.34 

.10 

.08 

.22 

.13

10,800 

8,000 

6,710 

16,700 

95,700 

542,000 

' 598 ;000 

125,000 

81,200 

86,500 

123,000 

79,600 

70,500 

101,000 

68,800 

62,800 

259,000 

53,100 

65,000 

154,000 

206,000 

188,000 

102,000 

69,300 

32,100 

15,600 

31,900 

9,290 

7,210 

18,800 

10,700

3,298,000

June

Mean 

discharge 

(secondfeet)

14,400 

18,000 

23,300 

26,600 

29,300 

28,700 

23,000 

20,200 

18,400 

17,000 

16,600 

16,200 

16,100 

15,700 

15,400 

15,300 

15,600 

15,800 

15,400 

14,500 

14,100 

13,900 

14,000 

15,000 

16,300 

17,600 

18,400 

18,800 

19,100 

18,800

Susi "tided sediment

Mewa 

conc itratron 

(percent)

0.35 

.46 

.51 

.52 

.54 

.60 

.40 

.32 

.27 

.23 

.22 

.20 

.23 

.18 

.20 

.20 

.19 

.19 

.16 

.18 

.15 

.16 

.11 

.18 

.20 

.21 

.21 

.21 

.21 

.20

Tons 

per day

136,000 

224,000 

321,000 

373,000 

427,000 

465,000 

248,000 

175,000 

134,000 

106,000 

98,600 

87,500 

100,000 

76,300 

83,200 

82,600 

80,000 

81,100 

66,500 

70,500 

57,100 

60,000 

41,600 

72,900 

88,000 

99,800 

104,000 

107,000 

108,000 

102,000

4,276,000

September

2,950 

2,920 

2,750 

2,550 

2,420 

2,300 

2,160 

2,120 

2,120 

2,060 

2,020 

2,000 

1,960 

1,920 

1,880 

1,860 

1,83d 

1,750 

1,700 

1,640 

1,590 

1,550 

1,520 

1,500 

1,470 

1,450 

1,470 

1,570 

1,750 

1,750

 

0.14 

.24 

.40 

.27 

.30 

.24 

.09 

.06 

.06 

.05 

.04 

.04 

.04 

.03 

.02 

.02 

.02 

.02 

.02 

.02 

' .02 

.02 

.02 

.02 

.01 

.02 

.01 

.05 

.87 

.90

 . 

11,200 

18,900 

29,700 

18,600 

19,600 

14,900 

5,250 

3,430 

3,430 

2,780 

2,180 

2,160 

2,120 

1,560 

1,020 

1,000 

988 

945 

918 

886 

859 

837 

821 

810 

397 

783 

397 

2,120 

41,100 

42,500

232,200

Total load for year.....................................................................tins..l2,790,000
SAN JUAN RIVER AT SHIP ROCK, N. MEX.

LOCATION.- At highway bridge approximately 3 miles above gaging station and about 3 miles d

DBAINAGE AREA. Approximately 12,800 square miles.

RECORDS AVAILABLE. Chemical analyses: February 1941 to September 1943. (See table on 

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,481 parts per million Aug. 31; minimum

Total hardness: Maximum, 535 parts per million Aug. 31; minimum, 98 parts per million M

EXTREMES, 1941-43. Dissolved solids: Maximum, that of Aug. 31, 1943; minimum, 127 part

Total hardness: Maximum, that of Aug. 31, 1943; minimum, 81 parts per million July 1-10

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in W

Chemical analyses, in parts per million, water year October 191$ 

. Date of collection

Oct. 1, 4-8,1942...........

Oct. 13-19.................

Oct. 21-22, 26-30-.--......

Nov. 2-6, 8, 10....... ... ...

Nov. 11, 15-20.. ..........

Nov. 23-24, 27-29-..,- 

Dec. 1, 3-10 ............

Dec. 11-17, 19-20. ......

Dec. 21-23, 29-31..........

Jan. 1-6, 8, 10, 1943........

Jan. 11, 13-14, 18-20.......

Jan. 21, 24, 27-28, 30-31.... 

Feb. 1-5, 8-10-....-.....,.

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

Feb. 21-25, 23. ___ . .....

Mar. 2-3, 5, 8-10 ........

Mar. 11-12, 14-20.... ......

Mar. 21-25, 27, 29. 31......

Mean 

discharge 

(secondfeet)

400 

629 

594 

662 

570 

597

592 

544 

647 

558 

559 

659

586 

694 

1,199 

980 

1,415 

1.685

Specific 

conductance 

(KX10" 

at 

25° C.)

101 

95.2 

95.0 

9,4.6 

97.9 

96.6

'103 

111 

105 

109 

106 

98.9

97.6 

93-. 9 

80.3 

880 

82.0 

,76.7

Silica 

(SiOs)

8.0 

16 

13 

12 

15 

11

15 

13 

20 

20 

22 

18

14 

14 

1 ? 

12 

10 

6.0

i

Iron 

(Fe)'

0.10 

.04 

.05 

.04 

.05

.07 

.05 

.10 

.10 

.10 

.20

.10 

.10 

.«5 

.08 

.15 

'.15

Calcium 

(Ca)

103 

103 

101 

100 

106 

106

113 

121 

118 

125 

132 

109

104 

96

78 

92 

1 85 

82

Magnesium 

(Mg)

25 

22 

21 

21 

22 

22

24 

26 

26 

27 

26 

23

23 

24 

W 

.24 

21 

24

Sodium 

(Na)

Potassium 

(K)

88 

82 

84 

85 

89 

85

92 

102 

91 

89 

" 80 

83

87 

86

rs

79 

67 

58

Bicarbonate 

(HC03)

183 

191 

192 

193 

206 

200

206 

218 

202 

211 

215 

191

169 

173 

166 

184 

161 

169

Sulfate 

(S04)

342 

317 

309 

310 

323 

321

352 

388 

365 

380 

372 

333

349 

329 

267 

300 

277 

251

Chloride 

(Cl)

30 

27 

28 

28 

29 

27

29 

32 

32 

32 

32 

30

28 

27 

19 

23 

15 

19

Fluo

ride 

(F)

0.2

.2

.2 

.2 

.5 

.5 

.4 

.4

.5 

.5 

.4 

.3 

.4 

.5
Apr. 1-10.................

Apr. 11-17, 19-20.,. . ...

Apr. 21-30-.. 

May 1-6, 8-10 

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

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

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

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

July 11-20 

July 21, 23-31... .... ...

July 22 .. .

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

Aug. 11, 13-14, 16-18, 20 . 

Aug. 12, 19 

Aug. 21, 23-28, 30 . ....

Aug. 29. 

Sept. 1-10 

Sept. 21-24, 27-30..........

3,974

3,472

6,802

 7,905

3,034

4,107

4,722

3,691

3,409

3,895

2,682

1,095

850

1,290

1,060

1,355 

2,010

1,281

978

1,650

1,217

579

J 751

1,823

38.7

38.2

24 9

24.0

34.1

' 29.8

27.3

29.1

29.6

81.1

40.6

56.8

68.0

111

69.9

67.7 

118

62.3

96 .3

199

60.4

78,7

86.5

166

49.0

12

11

8.8

9.5

12

H

13

13

10

14

11

11

12

15 

14

12

12

10

12

12

.02

.02

.02

.02

.02

.04

.04

.05

.04

.02

.02

.04

02

.02 

.05

.06

.02

.02

.02

0.04

45

44

30

29

39

35

32

33

34

70

43

58

71

92

71

68

88

62

73

175

64

' 76

80

53

12

11

6.4

6.3

8.3

7.8

7,0

6.7

6.6

8.6

9.3

12

13

13

13

12 

11

12

12

24

11

17

18

12

20

22

13

12

21

17

15

20

18

98

28

49

59

144

62

61 

164

54

129

275

53

71

82

38

111

113

89

79

95

91

86

87

83

138

103

132

148

196

153

144 

184

134

182

226

141

149

145

197

118

100

96

48

48

81

68

59

65

71

286

102

162

202

391

205

203 

432

180

323

844

169

246

284

142

5.0

6.0

3.0

3.0

7.0

5.5

5.2

5.8

5.8

9.0

9.0

15

16

20

16

14 

12

14

20

48

18

24

24

44

11

0

1 Includes discharge for Sept. 21-30

Chemical analyses, in equivalents per million, water year October 1

Oct.l, 4-8,1942..!........

Oct. 13-19.. 

Oct. 21-22,26-30... 

Nov. 2-6, 8, 10 ......

Nov.41, 15-20.- 

Nov. 23-24, 27-29.........

Dec. 1, 3-10.. ........

Dec. 11-17, 19-20..........

Dec. 21-23, 29-31..........

Jan. 1-6, 8, 10, 1943 

Jan. 11, 13-14, 18-20 

Jan. 21, 24,27-28,30-31....

400

629

594

662

570

597

592

544

647

558

559

659

5.14

5.14

5.04

4.99

5.29

5.29

5.64

6.04

5.79

6.24

6.59

5.44.

2.06

1 81

1.73

1.73

1.81

1.81

1.97

2.14

2.14

2.22

2.14

1.S9

3.gf

3.58

3.64

3.71

3.88

3.68

3.98

4 42

3.94

3.87

3.48

3.63

3.00

3.13

3.15

3.16

3.38.

3.28

3.38

3.57

3.31

3.46

3.52"

3.13

7.12

6.60

6.43

6.45

6.72

6.68

7.33

8.08

7.60

7.91

7.74

6.93

0.85

.76

.79

.79

.82

.76

.82

.90

.90

.90

.90

.85

0.

 
SAN JUAN BIVER AT SHIP ROCK, N. MEX. Cont

Chemical analyses, in equivalents per million, water year October 194-2 to 

Date of collection

Feb. 1-5, 8-10...-. . ....

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

Feb. 21-26, 28--- __ _.__..

Mar. 2-3, 5,8-10 .-

Mar. 11-12, 14-20 ... ....

Mar. 21-25, 27, 29, 31......

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

Apr. 11-17, 19-20... .......

Apr. 21-30. -._ 

May 1-6, 8-10..... .... .

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

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

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

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

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

July 21, 23-31-. ....... ....

July 22.. ...............

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

Aug. 11, 13-14, 16-18, 20....

Aug. 12, 19... ... ... .......

Aug. 21, 23-28,30.... ..... .

Aug. 20...... .............

Aug. 31. .... ... ... .....

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

2r*. 11-20.. ...........

Sept, 21-24, 27-30 

Sept. 26... ...... ..;____ 

Mean 

discharge 

(secondfeet)

586 

694 

1,126

980 

1,415

1,685

. 3,974 

3,472

6,802

7,905

3,034

4,107

4,722

3,691

3,409

3,895

2,682

1,095

850 \ 

1,290

1,060

1,355

2,010

1,281

978 

1,650

1,217 

»570 

»751

.. 1,823

Specific 

conductance 

(KX105 

- at 

25° C.)

~

Silica 

(SiOs)

Iron

(Fe)

Calcium 

(Ca)-

5.19 

4.79 

3.89 

4.59 

4.24 

4.09

2.25 

2.20 

1.50 

1.45 

1.95 

1.75

1.60 

1.65 

1.70 

3.49 

2.15 

2.89 

3.54 

4.59

3.54 

3.39 

4.39 

3.09 

3.64 

8.73

3.19 

3.70 

3.99

2.65

Magnesium

(Mg)

1.89 

1.97 

1.56 

1.97 

1.73 

1.97

.99 

.90

.53 

.52 

.68 

.64

.58 

.55 

.54 

.71 

.76 

.99 

1.07 

1.07

1 07 

.99 

.90 

.99 

.99- 

1.97

.90 

1.40 

1.48

0.99

Sodium

(Na)

Potassium 

(K)

3.«0 

3.74] 

3.44 

3.42 

2.90 

2.53

.87 

.96 

.56 

.50 

.91 

.72

.65 

.87 

.79 

4.27 

1.21 

2.12 

2.55 

6.28

 2.69 

2.66 

7.13 

2.33 

5.63 

11,97

2.30 

3.10 

3.57

1.65

Bicarbonate 

(HCQj)

2.77 

2.84 

2.72 

3.02 

2.64 

2.77

1.82 

1.85 

1.46 

1.29 

1.56 

1.49

1.41 

1.43 

1.36 

2.26 

1.69 

2.16 

2.43 

3.21

2.51 

2.36 

3.02 

2.20 

2.98 

3.70

2.31 

3.44 

2.38 

3.23

1.93

Sulfate 

(SOi)

7.27 

6.85 

5.56 

6.25 

5.77 

5 23

2.08 

2.00 

1.00 

1.00 

1.69 

1.42

1.23 

1 35 

1.48 

5.95 

2.12 

3.37 

4.21 

8.14

4.27 

4.23 

8.99 

3.75 

6.72 

7.57

3.52 

5.M 

5.91

2.96

Chloride 

(CD '

0.79 

.76 

.54 

.65 

.42 

.54

.14 

.17 

.08 

.08 

.20 

.16

.15

.16 

.16 

.25 

.25 

.42 

.45 

.56

.45 

.39 

.34 

.39 

.56 

1.35

.51

.88 

.68 

.. 1.24

0.31

F

r

0

0

i Includes discharge for Sept. 21-30.
SAN JUAN RIVER NEAR BLUFF, UTAH

LOCATION. At highway bridge, 2,000 feet downstream from gaging station and 20 miles south

DEAINAGE AREA. 23,900 square miles.

RECORDS AVAILABLE. Chemical analyses: February to June 1927, October 1929 to Septembe

Sediment records: August to September 1928, July 1929 to September 1943. 

EXTREMES, 1942-43. Dissolved solids: Maximum, 981 parts per million Oct. 11-20; minimu

Total hardness: Maximum, 506 parts per million Dec. 11-20, Feb. 11-20; minimum, 166 p

Sediment loads: Maximum, 613,000 tons per day, S_ept. 1; minimum, 607 tons per day Oct

EXTREMES, 1929-43. Dissolved solids: Maximum, 1,860 parts per million July 21-31, 1934; 

Total hardness: Maximum, 874 parts per million July 21-31, 1934; minimum, 109 parts pe

Sediment loads: Maximum, 11,450,000 tons per day, Sept. 23, 1929; minimum, less than 5

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 191$ 

Date of collection

Oct. 1-10, 1942............

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

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

Nov,l-10 ... .

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

Nov. 21-30.. 

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

Dec. 11-20-.-...... ....

Dec. 21-29, 31. ..... . 

Jan. 1-10, 1943............

Jan. 11-20. ............

Jam. 21-31 . .......... .

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

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

Feb. 22-28. ............

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

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

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

Mean 

discharge 

(secondfeet)

396 

692 

720 

734 

603 

620

700

578 

818 

556 

586 

948

672 

763 

1,302 

1,101

1,877 

1.648

Specific 

conductance 

(KX105 

at 

25° C.)

110 

134 

120 

127 

126 

125

126 

130 

125 

128 

128 

129

126 

128 

115 

116 

113 

108

Silica 

(Si02)

11 

12 

15 

14 

14 

11

11 

10 

14 

17 

10 

10

15 

14 

14 

14 

14 

16

Iron

(Fe)

0.09 

.08 

.10 

.11 

.08 

.04

.06 

.10 

.10 

.10 

.10 

.15

.20 

.20 

.10 

.10 

.05 

.20

Calcium 

(Ca)

102 

128 

117 

125 

123 

122

123 

132 

125 

132 

128 

127

125 

130 

111 

112 

103 

109

Magnesium 

(Mg)

32 

44 

40 

43 

42 

42

43 

43 

41 

41 

40 

43

42 

44 

36 

40 

37 

39

Sodium 

(Na)

Potassium 

(K)

99 

123 

108 

114 

112 

111

112 

109 

104 

104 

113 

108

108 

101 

105 

100 

103 

92

Bicarbonate 

(HC03)

164 

173 

190 

200

203 

202

200 

194 

191 

200 

206 

196

200 

197 

206 

190 

196 

197

Sulfate 

(S(M

404 

549 

468 

500

482 

481

491 

512 

479 

487 

480 

495

480 

496 

' 427 

445 

414 

411

Chloride 

(CD

32 

36 

31 

34 

34 

33

33 

35 

33 

35 

41 

35

36 

31 

27

28 

26 

26

Flu

rid

(F

0
SAN JUAN RIVER NEAR BLUFF, UTAH Continue

Chemical analyses, in parts per million, water year October 1942 to Sep

Date of collection

Apr. 1-10--.. 

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

Apr.|21, 23-30-. 

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

May 11-20- 

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

June 1-10.. ______ . ...

June 11-14, 16-20 

July 1-9- ..- . 

July 11-20 

July 21-31......... .

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

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

Aug. 2U26-29, 31. ........

Sept. 2-10 ... .

Sept. 11-20..... ........

Sept. 21-30 

Mean 

discharge 

(secondfeet)

4,377 

3,584 

6,833 

8,494 

3,684 

4,125

5,214 

4,075 

3,507 

3,114 

1,173 

964

1,013 

1,434 

1,638 

2^324 

1,724 

649 

767

1,996

Specific 

conductance 

(KX106 

at 

25° C.)

61.0 

58.1 

44 2 

40.0 

50.6 

51.9

41.8 

46.0 

43.9 

51.3 

63.9 

91.9

99 4 

104 

133 

89.9 

83.8 

95.5 

122

69.8

Silica 

(Si02)

9.5 

14 

12 

10 

13 

12

11 

12 

18 

15 

14 

13

14 

16 

15 

16 

12 

12 

10

13

Iron

(Fe)

.05 

.20 

.32 

.12 

.08 

.05

.05 

.04 

.06 

.12 

.16 

.08

.02 

.05 

.40 

.20 

.05 

.02 

.08

0.12

Calcium 

(Ca)

73 

72 

62 

57 

60 

60

50 

56 

53 

58 

65 

92

100 

112 

146 

94 

86 

98 

124

78

Magnesium

(Mg)

19 

17 

11 

9.8 

13 

13

10 

11 

10 

11 

15 

22

25 

24 

31 

20 

17 

24 

33

20

Sodium

(Na)

Potassium 

(K)

37 

32 

18 

13 

29 

33

25

27 

26 

37 

54 

82

87 

92 

119 

SI 

75 

80 

108

51

Bicarbonate 

(HCOs)

185 

176 

172 

147 

156 

154

131 

146 

128 

136 

138 

174

188 

241 

80S 

220 

166 

169 

195

167

Sulfate 

(800

163 

153 

SI 

77 

120 

127

96 

106 

107 

133 

191 

310

342 

334 

526 

274 

274 

325 

455

214

Chloride 

(Cl)

10 

90 

8.0 

6 0 

8.0 

10

7.0 

8.5 

8.5 

12 

17 

21

20 

23 

22 

18 

17 

24 

30

15

Flu

rid

(F

0.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

0.3

Chemical analyses, in equivalents per million, water year October 19

Oct. 1-10, 1942..... ....

Oct. 11-20 

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

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

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

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

396

fiQ9

720

734

603

620

5.09

6.39

5.84

6.24

6.14

6.09

3.62

3.29

3.54

3.45

3.45

4.32

5.33

4.69

4.97

4.85

4.81

2.69

2.84

3.11

3 28

3.33

3.31

8.41

11.43

9.74

10.41

10.03

10.01

0.90

1.02

.87

.96

.96

.93

0.0

0

.0

.0
Dec. 1-10.................

Dec. 11-20.. .......... ....

Dec. 21-29, 31.... .........

Jan. 1-10, 1943. ._.........

Jan. 11-20.................

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

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

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

Feb. 22-28.-. .............

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

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

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

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

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

Apr. 21, 23-30.. ........ ...

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

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

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

June 11-14, 16-20-..- ...

July !-«- 

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

July 21-31..... ............

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

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

Aug. 21, 26-29,31.. 

Aug. 22-25, 30.-.. ......

Sept. 2-10.................

Sept. 11-20 . ........ .

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

700

578

818

556

586

948

672

763

1,302

1,101

1,877

1,648

4,377

3,584

6,833

8,494

3,684

4,125

5,214

4,075

3,507

3,114

1,173

964

1,013

1,434

1,638

2,324

1,724

649

767

1,996

6.14

6.59

6.24

6.59

6.39

6.34

6.24

6.49

5.54

5.59

5.14

5.44

3.64

3.59

3.09

2.85

2.99

2.99

2.50

2.80

2.65

2.89

3.24

4.59

4.99

5.59

7.29

4.69

4.29

4 89

6.19

3.89

3.54

3.54

3.37

3.37

3.29

3.54

3.45

3.62

2.96

3.29

3.04

3.21

1.56

1.40

.90

.81

1.07

1.07

.82

.90

.82

.90

1.23

1.81

2.06

1.97

2.55

1.64

1.40

1.97

2.71

1.64

4.85

4.76

4.51

4.53

4.93

4.70

4.68

4.39

4.57

4.34

4.48

3.98

1.59

1.38

.80

.57

1.26

1.43

1 07

1.19

1.15

1.61

2.34

3 55

3.80

4.02

5.19

3.52

3.28

3.46

4.71

2.22

3.28

3.18

3.13

3.28

3.38

3 21

3.28

3.23

3.38

3.11

3.21

3.23

3.03

2.88

2.82

2.41

2.56

2.52

2.15

2.39

2.10

2.23

2.26

2.85

3.08

3.95

3.41

3.61

2.72

2.77

3.20

2.74

10.22

10.66

9.97

10.14

9.99

10.31

9.99

10.33

8.89

9.26

8.62

8.56

3.39

3.19

1.69

1.60

2.50

2.64

2.00

2 21

2.23

2.77

3.98

6.45

7.12

6.95

10 95

5.70

5.70

6.77

9.47

2.46

.93

.99

.93

.99

1.16

.99

1.02

.87

.76

.79

.73

.73

.28

.25

.23

.17

.23

.28

.20

.24

.24

.34

.48

.59

.56

.65

.62

.51

.48

.68

.85

0.42

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

0.0
110 QUALITY OF SURFACE WATERS, 1943

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Suspended sediment, water year October 1942 to September 1943

October

Day

I.......

2.......

3.......

4 ...,

5.......

6 ....

7.......

8 .......

9 

10......

11 

12......

13......

14......

15 

18 

IT... ...

18 .

19 

20......

21......

22......

23 

24......

25 

26 

27......

28

29......

30......

31......

Mean 

discharge

(secondfeet)

468 

438 

424 

 419 

400 

391 

373 

347 

347 

351 

321 

434 

484 

680 

732 

620 

845 

936 

978 

887 

845 

797 

693 

700 

693 

680 

706 

626 

686 

712 

784

Total load (ton

Suspended sediment

Mean 

concentration 

(percent)

0.11 

.10 

.09 

.16 

.10 

.18 

.11 

.14 

.12 

.13 

07 

.19 

.11 

.26 

.40 

.47 

.25 

.20 

.21 

.19 

.17 

.12 

.15 

.10 

.09 

.14 

.11 

.09 

.10 

.12 

.14

0 .... .

Tons 

per day

1,390 

1,180 

1,070 

1,810 

1,080 

2,010 

1,110 

1,310 

1,120 

1,230 

607 

2,230 

1,440 

4,770 

7,910 

7,870 

5,700 

5,050 

5,550 

4,550 

3,880 

2,580 

2,810 

1,890 

1,680 

2,570 

2,100 

1,520 

1,850 

2,310 

2,960

85,140

January

1 

2.......

3.......

4.......

5.......

6 

7 

8... .

9.......

10......

11 

12......

13......

14 

15 

16 

17......

IS ...

19. ..

20......

21......

22...... 

23...... 

24 

25 

26 

27 

28 

29...... 

30 

31......

Toti

644 

614 

609 

592 

575 

537 

500 

521 

438 

526 

559 

532 

581 

586 

609 

674 

644 

693 

620 

360 

248 

400 

1,220 

1,780 

1,380 

1,010 

992 

1,010 

824 

797 

764

il load (tons

0.19 

.14 

.15 

.16 

.15 

.12 

.12 

.13 

.22 

.24 

.20 

.22 

.19 

.27 

.21 

.28 

.26 

.27 

.13 

.09 

.11 

.20 

.56 

1.06 

.72 

.37 

.33 

.25 

.18 

.19 

.17

) .

3,300 

2,320 

2,470 

2,560 

2,330 

1,740 

1,620 

1,830 

2,600 

3,410 

3,020 

3,160 

2,980 

4,270 

3,450 

5,100 

4,520 

5,050 

2,180 

875 

737 

2,160 

18,400 

50,900 

26,800 

10,100 

8,840 

6,820 

4,000 

4,090 

3,510

195,100

November

Mean 

discharge 

(secondfeet)

752 

700 

719 

680 

700 

738 

758 

778 

758 

752 

680 

559 

586 

586 

581 

581 

609 

632 

603 

609 

644 

603 

638 

644 

644 

564 

603 

614 

632 

614

Suspended sediment

Mean 

concentration 

(percent)

0 17 

.10 

.13 

.08 

.15 

.17 

.13 

.19 

.10 

.14 

.12 

.09 

.07 

.13 

.17 

.13 

.11 

.15 

.10 

.10 

.13 

.12 

.12 

13 

.12 

.08 

.11 

.16 

.14 

.16

Tons 

per day

3,450 

1,890 

2,520 

1,470 

2,840 

3,390 

2,660 

3,990 

2,120 

2,840 

2,200 

1,360 

1,110 

2,060 

2,670 

2,040 

1,810 

2,560 

1,630 

1,640 

2,260 

1,950 

2,070 

2,260 

2,090 

1,220 

1,790 

2,650 

2,390 

2,650

67,580

February

719 

732 

719 

693 

752 

650 

598 

598 

592 

668 

719 

674 

553 

632 

700 

712 

784 

778 

957 

1,120 

1,290 

1,340 

1,330 

1,450 

1,450 

1,290 

1,170 

1,100

0.14 

.19 

.13 

.28 

.21 

.25 

.16 

.16 

.13 

.21 

.34 

.15 

.13 

.16 

.16 

.20 

.24 

.23 

.35 

.'56 

.46 

.53 

.52 

.62 

.56 

.48 

.44 

.31

2,720 

3,760 

2,520 

5,240 

4,260 

4,390 

2,580 

2,580 

2,080 

3,790 

6,600 

2,730 

1,940 

2,730 

3,020 

3,840 

5,080 

4,830 

9,040 

16,900 

16,000 

19,200 

18,700 

24,300 

21,900 

16,700 

13,900 

9,210

230,500

December

Mean 

discharge 

(secondfeet)

620 

609 

620 

626 

852 

784 

831 

764 

680 

614 

575 

553 

559 

559 

564 

586 

581 

598 

598 

603 

626 

632 

650 

609 

732 

1,310 

1,060 

1,010 

859 

810 

700

Suspended sediment

Mean 

concentration 

(percent)

0.10 

.13 

.11 

.09 

.27 

.23 

.18 

.20 

.15 

.14 

.12 

.09 

.09 

12 

.11 

.13 

15 

.13 

.14 

.13 

.18 

.14 

.14 

.10 

.13 

.65 

.42 

.30 

.27 

.33 

.23

Tons 

per day

1,670 

2,140 

1,840 

1,520 

6,210 

4,870 

4,040 

4,130 

2,750 

2,320 

1,860 

1,340 

1,360 

1,810 

1,680 

2,060 

2,350 

2,100 

2,260 

2,120 

3,160 

2,390 

2,460 

1,640 

2,570 

23,000 

12,000 

8,480 

6,260 

7,220 

4,350

124,000

March

1,090 

1,030 

1,070 

1,100 

1,160 

1,100 

1,100 

1,220 

1,080 

1,060 

1,620 

3,130 

2,480 

2,250 

1,990 

1,850 

1,650 

1,450 

1,170 

1,180 

1,310 

1,100 

1,120 

1,060 

1,190 

1,250 

1,590 

1,870 

2,050 

2,530 

3,060

0.27 

.27 

.23 

.20 

.22 

.30 

.35 

.27 

.31 

.24 

.41 

2.45 

2.21 

1.21 

1.13 

.72 

.59 

.42 

.36 

.33 

.28 

.33 

.27 

.24 

.29 

.34 

,?9 

.4-6 

.54 

.154 .?«

7,950 

7,510 

6,640 

5,940 

6,890 

8,910 

10,400 

8,890 

9,040 

6,870 

17,900 

207,000 

148,000 

73,500 

60,700 

36,000 

26,300 

16,400 

11,400 

10,500 

9,900 

9,800 

8,160 

6,870 

9,320 

11,500 

16,700 

23,200 

29,900 

57,400 

76,800

946,300
COLORADO RIVER BASIN Ill

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

April

Day

1. .

2.......

3

4 _

5 

6 .

7.......

8 ....

9 

10 .

11 

12 

13 

14 

15......

16......

17 

'18. .

19 

20 

21 

22 ..

23......

24......

25......

26 

27. .

28 

29 

30 

31

Mean 

discharge 

(secondfeet)

3,720 

3,260 

2,950 

3,220 

4,110 

4,930 

5,290 

5,970 

5,680 

4,640 

4,380 

3,580 

2,930 

2,600 

2,450 

3,030 

3,660 

4,580 

4,340 

4,290 

4,670 

5,510 

5,770 

6,530 

7,500 

7,860 

8,010 

7,900 

7,310 

7,270

Total load (ton

Suspended sediment

Mean 

concentration 

(percent)

1.00 

.86 

.79 

.61 

.77 

.80 

.67 

.79 

.64 

.66 

.49 

.53 

.45 

.43 

.41 

.46 

.70 

.57 

.42 

.42 

.46 

.50 

.48 

.54 

.62 

.73 

.56 

.49 

.46 

.52

0 ~ 

Tons 

per day

100,000 

75,700 

62,900 

53,000 85,400' 

106,000 

95,700 

127,000 

98,200 

82,700 

57,900 

51,200 

35,600 

30,200 

27, 100 

37,600 

69,200 

70,500 

49,200 

48,600 

58,000 

74,400 

74,800 

95,200 

126,000 

155,000 

121,000 

105,000 

90,800 

102,000

2,366,000

July

1 .......

2.......

3 ...

4.......

5 

6 

7 

8- ..

9 

10 

11 

12......

13 

14 

15......

16 

17. 

18 

19 

20......

21 

22......

23......

24 

25 

26 

27 

28 

29...... 

30 

31......

Tot

5,260 

5,320 

4,040 

3,480 

2,900 

2,690 

2,260 

1,970 

1,680 

1,540 

1,520 

1,280 

1,350 

1,220 

1,080 

1,080 

950 

1,090 

1,130 

1,030 

957 

. 1,090 

1,290 

1,190 

999 

915 

901 

838 

852 

764 

804

al load (tons

0.58 

.75 

.59 

.45 

.28 

.27 

.27 

.12 

.08 

.12 

.11 

.07 

.11 

.05 

.09 

.09 

.07 

.08 

.08 

.07 

.06 

.42 

.33 

.27 

.81 

.27 

.28 

.72 

.14 

.13 

.10

) ....

-82,400 

108,000 

.64,400 

42,300 

21,900 

19,600 

16,500 

6,380 

3,630 

4,990 

4,510 

2,420 

4,010 

1,650 

2,620 

2,620 

1,800 

2,350 

2,440 

1,950 

1,550 

12,400 

11,500 

8,680 

21,800 

6,670 

6,810 

16,300 

3,220 

2,680 

2,170

490,200

May

Mean 

discharge 

(secondfeet)

8,170 

8,850 

9,650 

9,710 

10,000 

10,400 

8,510 

7,140 

6,690 

5,820 

4,780 

4,260 

4,050 

4,140 

4,160 

3,570 

3,440 

3,110 

2,770 

2,560 

2,530 

2,590 

2,800 

2,900 

2,940 

3,450 

5,090 

5,360 

4,960 

5,700 

7,060

Suspended sediment

Mean 

concentration 

(percent)

0.57 

.54 

.68 

.57 

.49 

.76 

.60 

.59 

.59 

.53 

.41 

.44 

.42 

.36 

40 

.48 

.46 

.37 

.35 

.30 

.22 

.20 

.20 

.23 

.22 

.27 

.53 

.49 

.35 

.42 

.45

Tons 

per day

126,000 

129,000 

177,000 

149,000 

132,000 

213,000 

138,000 

114,000 

107,000 

83,300 

52,900 

50,600 

45,900 

40,200 

44,900 

46,300 

42,700 

31,100 

26,200 

20,700 

15,000 

14,000 

15,100 

18,000 

17,500 

25,200 

72,800 

70,900 

46,900 

64,600 

85,800

2,216,000

August

686 

1,010 

1,630 

1,200 

1,040 

985 

922 

831 

845 

978 

1,050 

971 

1,170 

1,690 

1,250 

1,290 

1,290 

1,290 

1,570 

2,770 

2,240 

2,280 

2,850 

1,650 

3,270 

1,520 

1,530 

1,410 

1,140 

1,570 

1,990

0.37 

.24 

.94 

1.13 

.83 

.55 

.39 

.20 

.28 

.30 

.77 

1.57 

.57 

.81 

1 66 

1.99 

.74 

.44 

1.04 

1.85 

3.89 

1.29 

1.22 

1.94 

1.80 

3.24 

1.13 

1.00 

.94 

.49 

1.98

6,850 

6,540 

41,400 

36,600 

23,300 

14,600 

9,710 

4,490 

6,390 

7,920 

21,800 

41,200 

18,000 

37,000 

56,000 

69,300 

25,800 

15,300 

44,100 

138,000 

235,000 

79,400 

93,900 

86,400 

159,000 

133,000 

46,700 

38,100 

28,900 

20,800 

106,000

1,652,000

June

Mean 

discharge 

(secondfeet)

 6, 130 

5,970 

6,080 

7,380 

5,720 

4,560 

3,930 

3,710 

3,960 

4,700 

5,140 

4,850 

5,120 

4,910 

4,140 

3,450 

3,240 

3,230 

3,150 

3,520 

3,640 

3,510 

3,620 

3,710 

3,720 

3,480 

3,260 

3,470 

3,260 

3,400

Suspended sediment

Metn 

concen- tratbn' 

(percent)

0.49 

.56 

.40 

.70 

.28 

.40 

.33 

.29 

.36 

.30 

.29 

.36 

.28 

.40 

.36 

.46 

.34 

.33 

.34 

.35 

.36 

.31 

.42 

.34 

.33 

.25 

.26 

.36 

.38 

.23

Tons

' per day

81,100 

90,300 

65,700 

139,000 

43,200 

49,200 

35,000 

29,000 

38,500 

38,100 

40,200 

47, 100 

38,700 

53,000 

40,200 

42,800 

29,700 

28,800 

28,900 

33,300 

35,400 

29,400 

41,100 

34,100 

33,100 

23,500 

22,900 

33,700 

33,400 

21,100

1,300,000

Septenber

2,780 

3,340 

2,250 

1,860 

1,520 

1,350 

1,210 

1,040 

999 

887 

797 

700 

706 

719 

620 

626 

586 

614 

559 

559 

603 

564 

570 

510 

510 

542 

845 

1,250 

1,070 

1,210

8.17 

3.82 

1.93 

1.11 

.57 

.43 

.40 

.29 

.22 

.22 

.20 

.17 

.15 

.16 

.23 

.20 

.22 

.15 

.16 

.14 

.20 

.14 

.11 

.14 

.14 

.15 

.52 

1.50 

1.96 

1.39

613,000 

344,000 

117,000 

55,700 

23,400 

15,700 

13,100 

8,140 

5,930 

5,270 

4,300 

3,210 

2,860 

3,110 

3,850 

3,380 

3,480 

2,490 

2,410 

2,110 

3,260 

2,130 

1,690 

1,930 

1,930 

2,200 

11,900 

50,600 

56,600 

. 45,400

1,410,000

Total load for year ... .................................... .__..tons..ll,080,000
112 QUALITY OF SURFACE WATERS, 1943

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Mechanical analyses of suspended sediment, water year October 194% fo September 1943

Date of 

collection

Oct. 1, 1942 

6 

8... -.. ...-.

12..................

16...... ........... .

20 

24 

29........... .......

Nov. 7 ... ..... ...

10 .. .

13..................

17 

20............ ..--.

24.....-...-. .

27 

Dec. 4 ..............

8 ..... ......

11 

12 

15 

23 r . ............

26.. .............

26 

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

Jan. 2, 1943.. 

6 ...... ... .

9 . .

13 ...... ...... . .

16 

20 

23 ....

24.... ..............

29. ....... ..

31..... ....

Feb. 3 ....... ..

7 .........

10 . 

14 

17 

20 

21... ...............

24 

28 ....... ........

Mar. 3 .... ..

7... ....... ........

10... ...............

12... ............

14. . .

17. .

21 

24 ...

28. .

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

Apr. 4 .............

7 

11 . - 

14 

18 

21 

25 

28 

Mean 

discharge 

(secondfeet)

468 

391 

347 

434 

620 

887 

700 

686

758 

752 

586 

609 

609 

644 

603

626 

764 

575 

553 

564 

650 

1,310

700

614 

537 

438 

581 

674 

360 

1,220 

1,780 

824 

764

719 

598 

668 

632 

784 

1,120 

1,290 

1,450 

1,100

1,070 

1,100 

1,060 

3,130 

2,250 

1,650 

1,310 

1,060 

1,870 

3,060

3,220 

5,290 

4,380 

2,600 

4,580 

4,670 

'7,500 

7,900

Suspended sediment

Mean 

concentration 

(percent)

0.11 

.19 

.14 

.19 

.47 

.19 

.10 

.10

.13 

.14 

.07 

.11 

.10 

.13 

.11

.09 

.20 

.12 

.09 

.11 

.14 

.65

.23

.14 

.12

.22 

.19 

.28 

.09 

.56 

1.06 

.18 

.17

.13 

.16 

.21 

.16 

.24 

.56 

.46 

.62 

.31

.23 

.35 

.24 

2.45 

1.21 

.59 

.28 

.24 

.46 

,93

.61 

.67 

.49 

.43 

.57 

.46 

.62 

.49

Tons 

per day

1,390 

2,010 

1,310 

2,230 

7,870 

4,550 

1,890 

1,850

2,660 

2,840 

1,110 

1,810 

1,640 

2,260 

1,790

1,520 

4,130 

1,860 

1,340 

1,680 

2,460 

23,000

4,350

2,320 

1,740 

2,600 

2,980 

5,100 

875 

18,400 

50,900 

4,000 

3,510

2,520 

2,580 

3,790 

2,730 

5,080 

16,900 

16,000 

24,300 

9,210

6,640 

10,400 

6,870 

207,000 

73,500 

26, 300 

9,900 

6,870 

23,200 

76,800

53,000 

95, 700 

57,900 

30,200 

70,500 

58,000 

126,000, 

105,000

Percent finer than given size

0.020 

mm.

18-0 

2.0 

21.1 

19.0 

. 62.6 

30 6 

24.8 

. 25.1

41.8 

37.4 

18.1 

10.7 

28.8 

9.7 

19.9

20.2 

44.7 

11.7 

26.4 

16.4 

15.3 

76.4 

85.0 

55.5

26.3 

8.9 

8.4 

6.1 

10.7 

20.5 

20.1 

46.0 

48.3 

42.0

19.1 

16.0 

11.8

18.7 

18.4 

12.4 

55.1 

55.8 

41.6

26.8 

33.9 

27.3 

42.3 

72.3 

39.5 

40.5 

35.5 

39.0 

2.1

24.9 

20.6 

15.4 

9.7 

10.2 

9.5 

 15.5 

11.6

0.050 

mm.

20*. 0 

2.9 

25.0 

21.3 

67.4 

33.3 

27.6 

28.9

48.1 

42.7 

20.7 

11.8 

33.4 

11.8 

24.3

25.8 

46.9 

13.5 

29.6 

17.9 

16.7 

84.4 

89.9 

58.5

28.2 

11 5 

9.8 

6.6 

12.5 

22.7 

29.7 

. 58.2 

55.7 

49.3

21.6 

18.7 

14.6 

22.0 

23.0 

19.9 

59.9 

59 9 

47.5

30.5 

37.9 

30.2 

57.1 

75.4 

50.0 

43.7 

38.8 

44.6 

21.3

33.2 

25.6 

19.0 

11.8 

16.0 

14.7 

21.2 

15.2

0.074 

mm.

30.1 

13.6 

41.6 

33.1 

74.9 

40.5 

38.1 

40.3

58.8 

51.5 

28.5 

16.8 

49.6 

17.7 

33.4

38.1 

54.9 

21.6 

39.0 

22.8 

22.9 

89.2 

96.2 

,64.5

36.8 

19.7 

16.2 

12.2 

19.3 

31.7 

58.4 

63.4 

66.5 

62.9

28.1 

25.0 

22.0 

29.9 

34.3 

28.9 

65.6 

63.7 

' 50.9

36.3 

45.0 

37.8 

63.2 

78.3 

58.2 

50.9 

47.2 

49.6 

32.6

39.6 

32.5 

25.6 

19.6 

26.7 

28.5 

33.5 

25.9

0.149 

mm.

67.4 

52.8 

89.2 

76.0 

93.7 

81.7 

88.5 

S6.9

90.0 

94.5 

77.2 

66.4 

89.2 

61.6 

77.4

- 84.7 

82.2 

79.0 

75.0 

60.9 

64.8 

97.8 

98.6 

82.2

77.0 

71.3 

67.0 

48.9 

72.2 

86.8 

94.0 

80.9 

94.1 

91.7

70.6 

67.0 

64.6 

77.0 

78.5 

73.7 

87.0 

81.1 

73.3

70.8 

76.0 

81.4 

80.0 

90.9 

79.1 

82.7 

79.6 

73.6 

70.8

68.0 

57.7 

50.5 

51.3 

55.2 

56.6 

57.9 

52.5
COLORADO RIVER BASIN 113

SAN JUAN RIVER NEAR BLUFF, UTAH Continued

Mechanical analyses of suspended sediment, water year October 191$ to September

 Continued

Date of 

collection

May 1, 1943..... ........

5 . . .

8 

12..................

19.. ....... ...........

23.. ....... .........

26-. ............

30.......... . .

6.. ....... .. ...

9.... - .

13..................

16 

 20.. ................

24 

27- 

29 

30 

July 1 .. 

7 ....... 

11 

14.... ..........

18 ..... ........ ..

22.... ...........

25 

28._.---.. 

8 ....... .....

11 

15 .

18 

20 

22 . 

25 

25 

29 

5 

8-.. _ ....

12... ..............

15 

22 ....... ..

24 

26.. 

29.................

Mean 

discharge 

(secondfeet)

8,170 

10,000 

7,140 

4,260 

2,770 

2,800 

3,450 

5,700

5,970 

4,560 

3,960 

5,120 

3,450 

3,520 

3,710 

3,260 

3,260 

3,400

5,260 

3,480 

2,260 

1,520 

1,220 

1,090 

1,090 

999 

838

1,200 

831 

1,050 

1,250 

1,290 

2,770 

2,280 

3,270

1,140

2,780 

1,520 

1,040 

700 

620 

564 

510 

542 

1,070

Suspended sediment

Mean 

concentration 

(percent)

0.57 

.49 

.59

.44 

.35 

.20 

.27 

.42

.56 

.40 

.36 

.28 

.46 

.35 

.34 

.26 

.38 

.23

.58 

.45 

.27 

.11 

.05 

.08 

.42 

.81 

.72

1.13 

.20 

.77 

1.66 

.44 

1 85 

1.29 

1.80

.94

8.17 

.57 

.29 

.17 

.23 

.14 

.14 

.15 

1.96

Tons 

per day

126,000 

132,000 

114,000 

50,600 

26,200 

15,100 

25,200 

64,600

90,300 

49,200 

38,500 

38,700 

42,800 

33,300 

34,100 

22,900 

33,400 

21,100

82,400 

42,300 

16,500 

4,510 

1,650 

2,350 

12,400 

21,800 

16,300

36,600 

4,490 

21,800 

56,000 

15,300 

138,000 

79,400 

159,000

28,900

613,000 

23,400 

8,140 

3,210 

3,850 

2,130 

1,930 

2,200 

56,600

Percent finer than given size

0.020 

mm.

10.9 

10.1 

7.1 

4.1 

5.1 

10 7 

9.2 

7.6

5.3 

5.5 

6.9 

5.2 

3.8 

2.7 

3.0 

4.2 

11.8 

3.5

5.9 

24.1 

25.9 

7.6 

12.5 

6.7 

61.9 

55.3 

67.0

67.7 

51.4 

50.7

78.8 

47.5 

67.2 

76.1 

73^ 

44.7 

73.7

44.5 

47.1 

38.7 

22 8 

27,7 

27.0 

12.1 

26.2 

84.0

0.050 

mm.

14.7 

14.7 

11 5 

5 7 

6,9 

14.2 

12..7 

11.3

7.3 

7.1 

8.6 

6.4 

5.2 

4.0 

4.4 

5.8 

18.9 

5.2

9.0

27.7 

30.7 

9.8 

18.6 

8.8 

68.2 

63.8 

80.0

74.4 

59.4 

63.1 

83.0 

56.8 

74.1 

80.7 

82.0 

58.5 

80.0

54.8 

55.4 

45.5 

30.2 

33.4 

33.6 

15.8 

33.9 

87.8

0.074 

nun.

2?. 5 

2>. 3 

2:- 2 

12.0 

13.5 

27.1 

31.9 

23.4

H.l 

13.4 

l-i. 8 

11.9 

11.6 

17.5 

9.5 

11.4 

39.2 

11.5

25.4 

33.6 

39.2 

16.4 

S9.1 

16.5 

72.8 

P6.8 

83.3

78.1 

68.7 

70.8 

83.6 

64.3 

77.0 

81.7 

84.6 

63.4 

81.9

63.3 

60.6 

51.3 

36.4 

39.2 

41.5 

19.2 

40.7 

88.1

0.149

nun.

50.5

54.8 

54.2 

34.9 

43.3 

72.1 

71.0 

49.7

37.8 

35 6 

42.4 

30.9 

44.8 

40.4 

36.9 

40.6 

62.3 

42.5

55.1 

59.4 

75.7 

65.8 

86.2 

69.7 

90.2 

84.9 

93.6

87.7 

93.5 

92.0 

91.6 

86.3 

89.4 

89.3 

91.8 

76.4 

93.9

88.5 

82.6 

81.5 

67.0 

73.5 

80.1 

48.8 

80.1 

94.1
ANIMAS RIVER AT FARMINGTON, N. MEX.

LOCATION. At gaging station at bridge on State Highway 17, 0.6 mile southeast of Farmingto

DRAINAGE AREA. 1,360 square miles.

RECORDS AVAILABLE. Chemical analyses: June 1940 to September 1943. (See table on pag

EXTREMES, 1942-^43. Dissolved solids: Maximum, 614 parts per million Dec. 21-31; minimu

Total hardness: Maximum, 389 parts per million Dec. 11-20; minimum, 114 parts per mil

EXTREMES, 1940-43. Dissolved solids: Maximum, 958 parts per million Aug. 11-20, 1940; m

Total hardness: Maximum, 563 parts per million Aug. 11-20, 1940; minimum, 90 parts pe

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 1942 

Date of collection

Oct. 1-10, 1942............

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

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

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

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

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

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

Dec. 11-20. ...............

Dec. 21-31................

Jan. 1-10, 1943............

Jan. Jl-20........... ......

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

Feb. MO ..............

Feb. 11-19... .............

Feb. 20-28.. _._-__-.... _

Mar. 1-M. ___ . .....

Mar.ll-^................

Mar. 21-27................

Mar. 28-31.... ............

Mean 

discharge 

(secondfeet)

155 

233 

249 

232 

217 

214

219 

205 

235 

205 

224 

253

210 

232 

322 

333 

438 

405 

726

Specific 

con- 

, ductance 

(KXW 

at 

25° C.)

86.1 

86.4 

85.1 

84.7 

86.1 

86.9

88.3 

89.0 

88.3 

87.8 

86.5 

76.7

78.0 

80.0 

77.4 

79.4

Tg 0

74^4 

55.8

Silica 

(SiOs)

10 

13 

13 

14 

11 

12

11 

12 

18 

16 

18 

9.0

12 

10 

10 

12 

12 

13 

12

Iron

(Fe)

0.102 

.02 

.02 

.07 

.05

.04 

.05 

.10 

.10 

,10 

.05

.05 

.08 

.05 

.05

.m

.12 

.10

Calcium 

(Ca)

109 

112 

112 

111 

114 

117

120 

123 

120 

118 

116 

89

93 

101 

102 

102 

08 

«7 

, 78

Magnesium 

CMg)

18 

18 

18 

19 

19 

19

19 

20 

20 

20 

19 

19

18 

18 

18 

21 

21 

20 

15

Sodium 

(Na)

Potassium 

(K)

55 

59 

56 

52 

56 

55

55 

51 

51 

49 

55 

54

59 

56 

50 

50 

'±'± 

45 

32

Bicarbonate 

(HC08)

182 

193 

195 

198 

205 

210

205 

219 

192 

191 

193 

130

139 

161 

188 

183 

137 

192 

163

Sulfate 

(800

267 

272 

263 

253 

263 

264

274 

267 

280 

272 

274 

258

267 

262 

237 

249 

213 

217 

159

Chloride 

(Cl)

27 

28 

29 

30 

29 

29

29 

29 

29 

29 

29 

28

28 

28 

24 

26 

25 

23 

17

Fl

ri

(

0
Apr. 1,3-10.... ...........

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

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

May 1-10. 

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

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

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

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

June 21-30.. ...... ........

July 1-10-... 

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

July 21-31........ .........

Aug. 1-9. . ..........

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

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

Sept. 8-10 ...... .......

Sept. 11-20 

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

1,178

1,064

2,408

2,936

1,063

1,945

2,133

1,681

1,939

1,136

571

418

578

684

718

1,310

604

309

271

736

40.8

41.1

26.8

26.5

38.3

30.3

27.6

30.0

26.2

37.4

49.2

56.9

52.4

48.3

47.2

32.1

48.8

61.7

72.5

42.9

5.6

6.0

4.4

6.0

6.0

7.8

8.0

6.8

7.4

7.6

10

10

10

8.8

7.6

9.2

10

10

8.0

.02

.02

02

.02

.02

04

.05

.05

.08

04

04

.04

.02

OS

.08

OS

02

.02

0.04

56

58

38

37

54

42

39

41

36

48

61

70

65

60

61

41

62

72

87

57

11

10

6.7

6.6

8.8

7.3

6.4

6.9

5.8

7,7

10

12

10

11

9.7

6.2

9.2

13

15

9.9

15

17

8.7

9.2

16

11

9.7

10

8.7

19

29

35

32

25

24

13

27

40

48

21

129

132

96

95

123

101

91

91

75

101

122

134

134

122

120

75

118

121

149

118

95

96

52

52

88

63

58

66

59

91

130

159

134

124

r 123

SO

129

185

216

111

8.0

9.0

5.0

4.0

8.0,

6.0

5.5

6.2

6.2

9.0

14

16

13

12

12

8.0

14

20

24

11

Chemical analyses, in equivalents per million, water year October 

Oct. 1-10, 1942... ....

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

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

Nov. 1-10 

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

Nov. 21-30... ...

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

Dec. 11-20.......... ...

Dec. 21-31. ..... __ .....

Jan. 1-10, 1943... .....

Jan. 11-20. 

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

*>eb. t-\n.. ........ .......

Feb. 11-19................

Feb. 20-28... .............

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

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

Mar. 21-27 

Mar. 28-31....... ......

155

233

249

232

217

214

219

205

235

205

224

253

910

232

322

333

438

405

726

5.44

5.59

5.59

5.54

5.69

5.84

5.99

6.14

5.99

5.89

5.79

4.44

4.54

5.04

5.09

5.09

4.79

4.84

3.89

1.48

1.48

1.48

1.56

1.56

1.56

1.56

1.64

1.64

1.64

1.56

1.56

1.4S

1.48

1.48

1.73

1.73

1.64

1.23

2.40

2.56

2.45

2.28

2.42

2.41

2.37

2.23

2.21

2.12

2.37

2.36

 J.5?

2.43.

2.19

2.16

1.91

1.96

1.41

2.98

3.16

3.20

3.25

3.36

3.44

3.36

3.59

3.15

3.13

3.16

2.13

2.64

3.08

3.00

3.07

3.15

2.67

5.56

5.66

5.48

5.27

5.48

5.50

5.70

5.56

5.83

5.66

5.70

5.37

5.59

5.45

4.93

5.18

4.56

4.52

3.31

0.76

.79

.82

.85

.82

.82

.82

.82

.82

.82

.82

.79

.79

.79

.68

.73

.71

.65

.48

0
ANIMAS RIVER AT FARMINGTON, N. MEX. Cont

Chemical analyses, in equivalents per million, water year October 194® to 

Date of collection

Apr. 1,3-10...............

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

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

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

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

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

June 1-10. __ . _ ... ....

June 11-20 ______ T ....

June 21-30. _____ . .....

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

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

July 21-31...... ...........

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

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

Sept. 1-2..................

Sept. 3-10 ...........

Sept. 11-20.. ____ . .....

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

Mean 

discharge 

(secondfeet)

1,178

1,064

2,408 

2,936

1,063

1,945

2,133

1,681

1,939 

1,136

571 

418

578 

684 

718 

1,310

604 

309 

271

736

Specific 

conductance 

(KX106 

at 

25° C.)

Silica 

(SiOa)

Iron

(Fe)

Calcium

(Ca)

2.80 

2.89 

1.90 

1.85 

2.70 

2.10

1.95 

2^05 

1.80 

2.40 

3.04 

3.49

3.24 

2.99 

3.04 

2.05 

3.09 

3.59 

4.34

2.85

Magnesium 

(Mg)

0.90 

.82 

.55 

.54 

.72 

.60

.53 

.57 

.48 

.63 

.82 

.99

.82 

.90 

.80 

.51 

.76 

1.07 

1.23

0.81

Sodium 

(Na)

Potassium 

(K)

0 67 

.73 

.38 

.40

.68

.48

.42 

.44 

.38 

.81 

1.28 

1.52

1.37 

1.08 

1.06 

.57 

1.19 

1.76 

2.10

0.91

Bicarbonate 

(HCOa)

2.11

2.16 

1.57 

1.56 

2.02 

1.66

1.49 

1.49 

1.23 

1.66 

2.00 

2.20

2.20 

2 00 

1.97 

1.23 

1 93 

1.98 

2 44

1.93

Sulfate 

(BOO

1.98 

2.00 

1.08 

1.08 

1.83 

1.31

1.21 

1.37 

1.23 

1.89 

2.71 

3.31

2.79 

2 58 

2.56 

1.67 

2 69 

3.85 

4 50

2.31

Chloride 

(CD

0.23 

.25 

.14 

.11 

.23 

.17

.16 

.17 

.17 

.25 

.39 

.45

.37

.34 

.34 

.23 

.39 

.56 

.68

0.31

Fl

ri

(

0.

.

.

.

.

.

.

0.
GILA RIVER AT SAFFORD, ARIZ.

LOCATION. At gaging station at highway bridge 1 mile north of Safford and 4J^ miles downs

DRAINAGE AREA. 10,460 square miles.

RECORDS AVAILABLE. Chemical analyses: August 1940 to September 1943. (See table on p

EXTREMES, 1942-43. Dissolved solids: Maximum, 1,112 parts per million May 21-31; mini

Total hardness: Maximum, 308 parts per million Apr. 11-20; minimum, 111 parts per mil

EXTREMES, 1940-43. Dissolved solids: Maximum, 1,290 parts per million June 11-20, 19

May 1-10, 1941.

Total hardness: Maximum, 404 parts per million Aug. 31, 1942; minimum, 101 parts per m

REMARKS. Records of discharge for water year October 1942 to September 1943 are given in 

Chemical analyses, in parts per million, water year October 1942 

Date of collection

Oct. 1-10, 1942_... ........

Oct. 11-17, 19-20...... _...

Oct. 21-24, 26-31..........

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

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

Nov. 21-28, 30.............

Dw. 1-10... ..............

Dec. 11-15, 18-20..........

Dec. 21-23 , 25-31 ..........

Jan. 1-8, 10, 1943.. ........

Jan. 11-20.................

Jan. 21-29, 31.............

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

Feb. 11 19.. ..............

Feb. 20-27....... ......

Mar. 1-5... ...............

Mar. 6-10 . .. ..

Mar. 11-19;.......... ..

Mar. 21-22.... ............

Mar. 23-27, 30-31..........

Mean 

discharge 

(secondfeet)

16.1 

61.4 

40.6 

65.1 

62.9 

63.2

103 

131 

109 

156 

165 

176

141 

45.1 

37.1 

187.2 

U.699 

402 

81.5 

22.1

Specific 

conductance 

(KX106 

at 

25° C.)

135 

105 

94.8 

86.3 

90.9 

93.8

86.7 

78. 1 

80.6 

79.5 

82.0 

79.4

83.8 

106 

128 

108 

38.3 

55.8 

83.8 

159

Silica 

(Si02 )

39 

32 

34 

36 

31 

32

34 

40 

38 

36 

37 

39

38 

38 

40 

41

38 

38

41

Iron 

(Fe)

0.06 

.14 

.07 

.08 

.04 

.10

.07 

.06 

.08 

.06 

.14 

.07

.06 

.06 

.07 

.06 

.20 

.10

.08

Calcium 

(Ca)

76 

54 

58 

56 

57 

58

56 

53 

54 

53 

55 

54

56 

66 

74 

64 

36 

41 

57 

82

Magnesium 

(Mg)

18 

13 

15 

13 

15 

15

14 

14 

14 

14 

14 

13

14 

16 

19 

16 

. 9.2 

11 

15 

21

Sodium

(Na)

Potassium

(K)

186 

157 

123 

113 

114 

120

107 

97 

97 

98 

101 

100

106 

144 

178 

143 

34 

85 

100 

237

Bicarbonate 

(HC03)

281 

253 

241 

245 

240 

244

232 

232 

232 

232 

231 

230

234 

257 

276 

240 

141 

173 

219 

301

Sulfate 

(S04)

98 

95 

60

57 

60 

62

57 

- 53 

52 

52 

53 

52

55 

78 

33 

76 

38 

40 

63 

145

Chloride 

(Cl) -

232 

154 

148 

124 

134 

142

126 

107 

' 110 

109 

117 

112

123 

175 

224 

180 

31 

71 

124 

284

Flu

ri

(F

1

1

1

1

1

1

1

' 1 

1

1

1

1

1

. 1

1

1

1

1
GILA RIVER AT SAFFORD, ARIZ. Continued

Chemical analyses, in parts per million, water year October 191$ to Sep

Date of collection

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

Apr. 11-16, 18-20.. ........

Apr. 21-24, 26-30 ........

Mayl-S, 10. ...........

May 11-14, 16-20..........

May 21-31- . 

June 13 ___________

June 29-30 ................

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

July 4...... ...............

July 16-30.... 

July 21-31., ..-...._. 

Aug. 1-6, 10. ... ........

Aug. 11-14................

Aug. 15-20.. .........

Aug. 21-29. ..... .......

Aug. 30-31 __ ....... .....

Sept. 1-4, 6-7, 9-10. .......

Sept. 11-20................

Sept. 21-25................

Sepfc 26-30......... .......

Mean 

discharge 

(secondfeet)

23.1 

16.2 

31.7 

11.3 

10.2 

22.4

21

338 

»12» 

»2 

«27.6 

62.6

333 

97.0 

299 

290 

77.0

13.4 

5.0 

20.2 

868

123

Specific 

conductance 

(KX10& 

at 

25° C.)

169 

171 

139 

161 

167 

189

160 

99.7 

61.1 

105 

87.6 

79.8

107 

71.8 

119 

67.9 

98.6

too

132 

125 

42.1

72.1

Silica 

(SiQs)

42 

42 

43 

43 

40 

48

48 

40

42 

40

36 

35 

34 

32

38 

43 

40 

25

36

Iron 

(Fe)

.06 

.06 

.04 

.04 

.06 

.18

.16 

.17

.12 

.11

.21 

.08 

.05 

.10

.08 

.11 

.15 

.05

0.12

Calcium" 

(Ca)

82 

87 

74 

82 

84 

66

44 

43

40 

50

40 

32 

43 

36 

45

62 

70 

60 

31

45

Magnesium 

(Mg)

22 

22 

18 

23 

22 

24

9.2, 

10

16 

11

8.3 

8.1 

10 

9.7 

13

16 

20 

16 

8.1

11

Sodium

(Na)

Potassium 

(K)

256 

256 

199 

235 

242 

302

io8 

75

14 

10

18 

111 

195 

93 

14

123 

IS 

IS 

4

1 

3

0 

6.0

5.8 

5.6 

7

5.8 

3 

A 

8

95

Bicarbonate 

(HC03)

301 

311 

273 

295 

289 

244

227 

258 

194 

212 

209 

205

200 

185 

215 

182 

201

242 

272 

248 

150

194

Sulfate 

(BOi)

148 

144 

100 

125 

123 

160

121 

44

80 

45

130 

80 

149 

65 

139

61 

87 

83 

35

62

Chloride ' 

(CD

314 

320 

252 

306 

322 

385

335 

120 

72 

175 

132 

124

154 

86 

170 

82 

124

162 

238 

226 

38

96

Flu

ri

(F

1

1

1

1

2

2

2

1

1

1

1

1

1

1

1

1

2

1

See footnotes at end of table.

Chemical analyses, in equivalents per million, water year October 1

Oct. 1-10, 1942.. ....:. . .

Oct. 11-17, lfr-20- .........

Oct. 21-24, 26-31.... ... ...

NOT. 1-10....... ..........

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

Nov. 21-28, 30 . .......

16.1

61.4

40.6

6S.1

62.9

63.2

3.79

2.70

2.89

2.80

2.85

2.89

1.48

1.07

1.23

1.07

1.23

1.23

8.07

6.82

5.36

4.92

4.96

5.23

4.61

4.15

3.95

4.02

3.93

4.00

2.04

1.98

1.25

1.19

1.25

1.29

6.54

4.34

4.17

3.50

3.78

4.00

0.
Dec. 1-10- 

Dec. 11-15, 18-20-.... ..

Dee. 21-23, 25-31 

Jan.1-8, 10, 1943.. 

Jan. 11-20.. 

Jan. 21-29, 31. ............

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

Feb. 11-19..... ... 

Feb. 20-27-.-... ... ... .

Mar. 1-5 .... ..... .....

Mw.6-10- _ ............

Mar. 11-19......... .......

Mar. 21-22..... ..... ...

Mar. 23-27, 30-31 .......

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

Apr. 11-16, 18-20- .-...

Apr. 21-24, 26-30.. ....... .

May 1-8, 10 ... ... .... -

May 11-14, 16-20 

May 21-31 .. -:

June 29-30 ................

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

July 4.. ................

July 16-20........ .........

July 21-31........ .........

Aug. 1-6, 10- ..... .

Aug. 11-14. 

Aug. 15-20....... .........

Aug. 21-29.. . . .

Aug. 30-31 ................

Sept. 1-4, 6-7, 9-10 

Sept. 11-20.... ............

Sept. 21-25.... ............

Sept. 26-30. ............

103

131

109

156

165

176

141

45.1

37.1

187.2

> 1,699

402

81.5

22.1

23.1

16.2

31.7

11.3

10.2

22.4

>1

338

»129

»2

<27.6

62.6

333

97.0

299

290

77.0

13.4

5.0

20.2

868

123

-

2.80

2.65

2.70

2.65

2.75

2.70

2.80

3.29

3.69

3.19

1,80

2.05

2.84

4.09

4.09

4.34

3.69

4.09

4.19

3.29

2.20

2.15

2.00

2.50

2.00

1.60

2.15

1.80

2.25

3.09

3.49

2 99

1.55

2.25

1.15

1.15

1.15

1.15

1.15

1.07

1.15

1.32

1.56

1.32

.76

.90

1.23

1.73

1.81

1.81

1.48

1.89

1.81

1.97

.76

.82

.99

.90

.68

.67

.82

.80

1.07

1.32

1.64

1.32

.67

0.90

4.

4.!

4.2

4.S

4.;

4.;

4.(

6.i

7.

6.S

1.4

2.8

4.:

10. 5

11. ] 11.]

s.e

10. 5

10. {

13.]

7.1

3.S

6.]

4.4

7.5

4.83

8.48

4.04

6A

5.35

7.5

8.(

2.]

4.1

57

22

22

!4

58

!3

)0

27

r2

!0

8

U

4

,9

4

3

4

,3

4

1

0

5

1

8

3

0.15

.15

.14

1

.15

7

15

0

13

3.80

3.80

3.80

3.80

3.79

3.77

3.84

4.21

4.52

3.93

2.31

£.84

3.59

4.93

4.93

5.10

4.47

4.84

4.74

4.00

3.72

4.23

3.18

3.47

3.43

3.36

3.28

3.03

3.52

2.98

3.29

3.97

4.46

4.07

2.46

3.18

I.ft

1.10

1.08

1.08

1.10

l.OS

1.15

1.62

2.00

1.58

.79

.83

1.31

3.02

3.08

3.00

2.08

2.60

2.56

3.57

2.52

.92

1.67

.94

2.71

1.67

3.10

1.35

2.89

1.27

1.81

1.73

.73

1.29

3.55

3.02

3.10

3.07

3.30

3.16

3.47

4.94

6.32

5.08

.87

2.00

3.50

8.01

8 86

9.03

7.11

8.63

9.08

10.86

9.45

3.33

2.03

5.98

3.72

3.50

4.34

2.43

4.79

2.31

3.50

4.57

6.71

6.37

1.07

2.71

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

0.

1 Discllarge for 5th included in discharge reported for Mar. 6-10.

2 Includes discharge for June 1, 12, and 13; no flow on June 2-11,14-28.

8 Includes discharge for 

* Includes discharge for 
120 QUALITY OF SURFACE WATERS, 1943

LAKE MEAD, ARIZ.-NEV.

Chemical analyses, in parts per million

[The miles given below represent distances measured along the Colorado River 

downstream from the gaging station at Lees Ferry, Ariz.]

Mile 236

Date of collection

1948 

Oct. 27...... ......

1

 £

Q

<_ v

f

'S

s

1,200

 »

S£

a

O>

H

63.0

-£&

1*3

sj g^

GO

185

o

 si

o

132

S

E>

S

63

H

 2 Ic;

CO

202

0,

c«

oO

0!--

«

210

1

«H

£

607

6

0

=3

1

 5~&

a

1,265

B 

 B a

.jgO

0 S

H

588

Mile 264

1942

Oct. 27... ... .... .. 1,200 63.8 193 138 63 213 205 635 168 1,318 604

Mile 268.5

194S 

Oct. 27... ......... Surface 1,200 64.4 194 139 64 211 202 642 ,ea 1,322 610

Mile 269.5

1942 

Oct. 27... . .....

J04S 

Feb. 25 I..........

Feb. 25 2. ........ .

Surface

Surface 

Surface

1,200

1,180± 

1,180±

63.6

53.0 

57.0

186

142 

106

134

98 

88

62

45 

32

203

155 

95

198

219 

167

614

373 

299

162

140

78

1,272

919

674

590

430 

351

Mile 270

1948 

Oct. 27..... ....... Surface 1,200 72.2 107 76 36 105 155 298 fi 682 338

Mile 270.5

1943 

Aug. 2F i. .........

Aug. 26 2__._ ......

Surface 

Surface

1,200 

1,200

84.6 

84.8

95.9 

95.1

78 28 85 136 

148

266 71 

81

602 310

Emery Falls, mile 275.8

1943

Aug. 26.. ....... .. 5

50

100

150 

175

189

191

1,195

1,150

1,100

1,050 

1,025

1,011

1,009

83.5

79.4

77.5

80.7 

81.2

81.0

81.0

88.5

88.5

119

122 

124

128

123

65

107

27

35

86

117

150

174

397

231

389

69

79

59

552

N

820

273

411

See footnotes at end of table.
COLORADO RIVER BASIN 121

LAKE MEAD, ARIZ.-NEV. Continued 

Pierce Ferry Bay, mile 279

Date of collection

194% 

Oct. 1...... .......

Oct. 27............

Nov. 1. ________

Dec. 1... _. .

1943 

Jan. 1.............

Jan. 31 __.

Feb. 28.--.. ...

Apr. 1.. ..........

May 1... .........

Julyl.. . .......

Aug. 1. ..... __.

Sept. 1............

Depth (fet)

5

5

5

5

5

5

5

5

5

5

5

5

Elevation (feet)

1200

1194

1189

1183

1178

1175

1172

1176

1184

1194

1197

1195

Temperature 

(°P.)

71.8

65.0

60.0

56.0

58.0

70.0

84.0

Specific conduct- 

(KXlO 5 ance 

C.) 25° at

102

106

106

109

106

102

104

105

61.6

63.4

46.8

72.6

85.4

Calcium (Ca)

74

78

76

7Q

80

81

86

90

65

Magnesium 

(Mg)

33

35

36

35

35

33

34

29

26

*t

la

|Jw

105

107

104

105

97

92

91

97

75

Bicarbonate 

(HCOa)

159

168

157

160

159

163

167

163

144

137

116

145

130

'S

33

285

295

300

304

297

286

294

299

102

221

Chloride (Cl)

86

90

87

87

82

75

77

77

40

26

56

65

Dissolved solids

661

688

680

689

669

647

664

674

522

hardness Total

asCaCOa

320

338

338

341

344

338

354

344

269

Iceberg Canyon, mile 287.5

1943

5

50 

100 

150

200 

250

270

274 

276

1195

1150 

1100 

1050

1000 

950

930

926 

924

82.5

78.2 

67.3 

62.7

58.0

56.7

58.9

59 5 

62.1

71.6

103 

72.3 

78.1

114 

117

117

124 

130

54

86 

56

90

106

117

22

30 

22

34

32 

41

62

99 

70

115

132

124

125

161 

139

184

222 

284

173

295

185

313

356 

360

54

78 

52

95

88 

83

428

673

457

743

831 

871

226

338 

230

364

396 

460

Virgin Canyon, mile 305.3

194S

5

50 

100

150

200 

250

300

350

360

365

368

- 371

1195

1150 

1100

1050

1000 

950

900

850

840

835

832

829

81.2

77.6 

65.6

58.6

56.4 

55.3

54.3

54.3

54 2

54.3

55.3

61.4

59.2

54.5 

69.4

103

111 

114

115

114

114

115

116

120

50

46

90

17

32

42

105

124

119 

142

172

183

192

136

124

308

44

34

47

84

91

89

323

708

185

356

Virgin River, arm of lake 22.5 miles above mouth of Virgin River

1943

Aug. 28.. ......... 5

50

100

' 139

157.5

1185

1140

1090

1051

1032

84.0

89.6

93.4

102

120

70 26 74 129

130

153

161

252

247 . 55

61

61

65

84

538 282
122 QUALITY OF SURFACE WATERS, 1943

LAKE MEAD, ARIZ.-NEV. Continued. 

Virgin River Narrows, 9.3 miles above month of Virgin River

Date pf collection

i

1943 

Aug. 27... ........

Depth (fe)

5

50

100

150

200

350

300 *303

«303.5

(feet) Elevation 

1195

1150

1100

1050

1000

950

900

897

896

0>

9 

cs^j

£&« 

&S^

a

H

81.6

79.3

66.6

58.8

55.4

54.2

53.6

54.0

54.0

12

l*o 

<§ Sol H*8 ^

75.2

75.0

87.8

101

107

109

111

111

118

(Ca) Calcium 

64

Magnesium 

(Mg)

23

it

 wg

a

llwCO

60

Bicarbonate 

(HCOs)

125

147

160

172

218

1

£

209

Chloride (CD

1

45

54

70

76

85

-S 

1

I

465

hardness Total 

asCaCOj

254

Mile 324

1943 

Aug. 28.. ._... - 1200 81.2 108 132 76

Boulder Canyon, mile 334.9

1943 

Aug. 24..._....... 5

50

100

150 

200

250

300

350

400

435

445

447

1195

1150

1100

1050 

1000

950

900

850

800

765

755

753

82.0

79.6

65.3

57 4 

54.5

53.6

53.4

53.3

53.7

53.9

53.9

54.1

75.0

81.6

88.9

101 

99 4

107

111

112

113

113

113

140

54

94

22

29

55

83

124

146

153

161

168

172

516

171

301

45

56

65

72

78

787/

409

652

226

354

Intake Towers, mile 354.7

194% 

Oct. 1.. ........

Nov. 2. ..-.-..

5

50

100 

150

200 

250

300

350

400

450

465 

470

475 

5

50

100

116 

150

200

250

300 

350

400

450

460 

465

1200

1155

1105 

1055

1005 

955

905

855

805

755

740 

735

730 

1194

1149

1099

1083 

1049

999

949

899

849

799

749

739 

734

76.3

75.3

69.5 

61.5

55.6 

53.7

53.6

53.5

53.3

53.3

53.2 

55.5

56.5 

69.5

69.5

69.5

67.5 

61.0

55.5

54.8

53.5 

53.5

53.5

53.5

54.8 

55.6

87.1

86.1

96.3 

105

110 

110

110

110

111

111

144 

147

140

88.5

87.8

87.6

96.3 

101

110

111

110 

111

111

111

150 

144

82

93

106

145

142 

86

94

104

153

28

30

32'

58

49

27

28

31

64

56

72

.89

109

113 

60

75

94

112

143

144

157 

161

164 

170

164

168

168

178

444 

430

412 

142

148

148

156 

156

160 163~

167 

170

171

173

508 

424

238

285

337

344

344 

260

28»

334

347

53

eo

72

83

7<' 

48

58

7''

78

529

620

719

958

928 

554

623

722

1,005

320

356

396

600

556 

326

350

387

645

See footnotes at end of table.
COLORADO KIVEK BASIN 123

LAKE MEAD, ARIZ.-NEV. Continued 

Intake Towers, mile 354.7 Continued

Date of collection

1942 

Dec. 1. ...........

1949

Feb: 2... .........

Mar. 1.. ..........

i

Apr. 1. .... .'_.. 

May 3.. .... 

Depth feet)

5

50

100

150 

200

250

300 

350

400

450

455

460 

465

5

50

100

150

200

250

300 

350

400

450

453

5

50

100

150

200 

250

300

350

400 

445 

449

5

50

100

150

175

200 

250

300

350

400

443 

445

5

50

100

150

200 

250

300

350

400

440 

442

5

50

100

150

200

250 

300

400

 445

449

1

j

1189

1144

1094

1044 

994

044

894

&14

744

730

734 

729

11 RQ

1138

1088

1038

988

938

888 

838

78ft

700

735

117S

1133

1083

1033

983 

933

883

833

' 783 

738 

734

1175

1130

1080

1030

1005

980 

930

880

830

780

737 

735

11 79

1127

1077

1027

977 

927

H77

827

777

737 

, 735

1176

1131

1081

1031

981

931

881

781

738

732

I*

3 

dos?a2_

00)

H

63.0

63.0 on E

60.6 

56.5

53.8

53.4

UQ Q

KQ *>

53.5

fii K

55.4 

57.4

so A

BD A

58.0

57.5

M

O

KO 17

53 5 HO n

HO n

55.0

54 9

M e

54 5

54.5

54 4

K9 Q

 W 0

KQ Q

53.7 

53.5 

55.1

CR *7 '

KA Q

54 1

53.6

53.3

53.9 

53.6

53.3

53.6

53.6

53.9 

55.4

59.0

56.6

55.2

54.0

53.9 

53.9

53.8

53.7

53.8

53.6 

54.5

69.0

60 8

55.5

54.3

53.8

53.7 

53.6

53.4

53.4

54.3

Specific conduct- (KX105 ance 

at25°C.)

90.1

89.9

on Q

97.3 

110

111

111

111

115

151

150

110

M Q

91 8

91 9

no o

111

110

111 

111

111

155

149

Oft O

M o

net a

97.1

110 

111

111

111

110 

132 

144

07 ft

no o

07 7

no q

102

109 

111

112

114

117

118 

155

Oft ft

00 A

OO A

107

113 

114

117

119

119 

154

Qfi 1

fVE O

Qfi 1

101

107

110

114

114

114

I

a

3

84

92

ioa

152

88

102

144

92

98

102 

130

Qi

102

98 

154

98

104

100 

154

96

103

108

Magnesium(Mg)

25

,28

31

5l

27

31

59

27

31

31 

47

90

32

35 

57

24

29

34 

54

Oft

29

35

 xsS

*s

3a

77

78

96

129

75

94

119

77

99

97 

109

77

90

114

133

82

102

109 

130

85

105

Bicarbonate 

(HCOs)

153

150

150

153 

162

163

167 

167

172

201

510

534 

546

150

148

150

148

163

164

166 

166

561

470

153

129

162

154

164

168

166

165

170 

360 

440

117

104

153

161

180

169

167

183

182

180

183 

538

151

166

181 

450

162

159

159

161.

170

175 

180

181

184

174

Sutfate (S0 )4

270

295

337

313

281

335

349

290

337

337 

337

295

331

345 

338

300

339

334 

379

301

333

(Ctt Chloride 

'52

57

74

75

55

72

80

57

72

73 

78

60

61

70

90

82

60

78

92 

89

59

79

70

1

583

629

723

983

600

716

982

618

718

724 

878

632

708

772 

1,029

640

735

760 

1,029

649

738

hardness Total

asCaCOt

312

344

384

589

330

382

602

340

372

382 

518

354

386

388 

619

343

378

390 

606

346

376
124 QUALITY OF SURFACE WATERS, 1943

LAKE MEAD, ARIZ.-NEV. Continued 

Intake Towers, mile 354.7 Continued

Date of collection

1843 

May 31.. .........

July 31...........

Sept. 1... .........

1

1 

Q

'- 5

50

100

150

200 

250

300

350

400

450 

455

5

50

100

150

200 

250

300

350

400

450

462 

467

5

50

100

150

200 

250

300

350

400

450

465 

468

5

50

100

150

200

250

300

350

400

450

465 

466

(feet) Elevation 

1184

1139

1089

1039

989 

939

889

839

789

739 

734

1194

1149

1099

1049

999 

949

899

849

' 799

749

737 

732

1197

1152

1102

1052

1002 

952

902

852

802

752

737 

734

1195

 1150

1100

1050

1000

950

900

850

800

750

735

734

a>

5

a--?

£ te

0.0,

a 

£

66.6

66.4

58.2

55.5

54.2 

53.9

53.7

53.6

53.5

53.5 

54.0

76.1

69.0

64.0

56.4

54.1 

53.9

53.9

53.9

53.9

53.6

53.9 

54.9

83 6

72.8

67.6

57.2

54.6 

54.3

54.2

-54.2

54.1

54.1

54.0 

53.8

79.8

79.4

68.1

59.2

55.2

54.3

54.3

54 2

53.9

53 9

53.9 

54.1

conduct- Specific (KX10 S ance 

C.) 25° at

98.9

99.1

98.3

99.1

104 

110

114

116

116

, 116 

151

97.7

98.4

98.7

100

106 

113

114

116

116

116

116 

131

96.3

94.9

98 4

99.7

104 

111

114

115

115

118

116 

157

92 2

92 7

97 5

100

104

109

113

114

115

116

116

138

Calcium (Ca)

96

98

100 

156

92

102

103 

106

83

97

100

157

81

99

128

Magnesium(Mg)

26

27

32 

53

26

28

32 

44

27

28

33 

56

26

32 

46

it 

If

I'iU

3JM

81

91

107 

121

85

91

105

53

91

97

115

138

82

110

124

Bicarbonate 

(SCOs)

150

151

155

153

156 

165

172

171

177

175 

457

148

169

182 

352

132

139

152

155

166 

168

172

174

176

178

185 

546

126

127

151

155

159

166

178 

376

JS

300

312

333 

366

300

315

334 

156

306

322

. 346 

335

285

340

332

Chloride (Cl)

61

58

60

61

69

72

82

87

91

86 

81

61

7C

84 

77

62

59

60

6J

 67 

75

80

82

82

838-' 

&

59

59

60

63

6f

72

8' 

»'

Dissolved solids

640

676

748 

1,004

639

691

750 

610

635

697

774 

1,049

600

755 

907

hardness Total

CaCOs as 

346

356

381 

608

336

370

388 

446

318

357

385 

622

309

i

378 

508

1 Sample collected just above interface between clear and turbid waters.

2 Sample collected just below interface between clear and turbid waters.

* Slight amount of sediment.

4 Clear liquid decanted into the* sample bottle.
COLORADO RIVER BASIN 125

w a,

5 -S 1 »"

« 00

% X * §

 § -5

ssO 

o

S^

-a

1

3

t

1

&

M\

If*

,|

Jtfl

14

*il

!«£

in

ui

1 §§

l-o'!"£

0 S-S^

Hi

aji

13 "S

II

^ c Xus

Q "~ "

collection Dae of

00

O9US 

I-HUS

CO t^

(MOO

s

C-KN'

22

1OU3

I

fl a

o, 

CO

?

iancoe

o

2

0

O9 

US

£5

CM

s

us1

O

2 o

1near er

I £
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in parts per million Contin

Little Colorado River near Eager, Ariz.

Date of collection

Feb. 11, 1943....... __ ......

Discharge 

(secondfeet)

Specific 

conductance 

(KX10* 

at 25° C.)

24.6

Silica 

(SiCfe)

28

Iron

(Fe)

Calcium

(Ca)

28

Magnesium 

(Mg)

11

Sodium 

and potassium 

(Na+K)

15

Bicarbonate 

(HCOs)

162

Sulfate

(S04)

7

Chlo

ride 

(Cl)

4.

Little Colorado Rhrer near Springerville, Ariz.

Feb. 10, 1943................. 36.7 250 7.2 5.

. 

Little Colorado River above Lyman Reservoir near St. John

Dec. 9, 1942 ...............

Feb. 11, 1943.... .............

4

4

65.9 

50.2 24

51

44

29 

21

61 

47

371 

308

47 

23

1

1

Lyman Reservoir near St. Johns, Ariz. 

Feb. 10, 1943.. ............ 47.0 284 1

Little Colorado River below Lyman Reservoir near St. John

Dec. 9, 1942.................

Feb. 18, M43.. ...............

°:J 53.0 

53.2

48 

48

20 

19

46 

52

273 

294

47 

44

1

1

Little Colorado River near St. Johns. Ariz.

Feb. 10, 1943 a....... ....

Feb. 10, 1943 » . .........

177 

311

19 

17

154 

262

48 

87

205 

411

468 

618

346 

698

19

41
COLORADO RIVER BASIN 127

i

O OC4 SbSsoi

 #.-<

^<-

OOv-^ * # *

 ON

ss

So

°2

esico

Of 0> ec-#
MISCELLANEOUS STREAMS IN COLORADO RIVER BASI

Chemical analyses, in parts per million Continu

Puerco River near Adamana, Ariz.

Date of collection

Feb. 5,1943 

Discharge 

(secondfeet)

3

Specific 

conductance 

(KX10* 

at 25° C.)

105

Silica 

(Si02)

14

Iron

(Fe)

Calcium 

(Ca)

54

Magnesium 

(Mg)

13

Sodium 

and potassium 

(Na+K)

174

Bicarbonate 

(HCOs)

240

Sulfate 

(SO.)

247

Chlo

ride 

(Cl

75

Chevelon Fork near Winslow, Ariz.

Dec. 6, 1942...,..... ......

Feb. 8, 1943-. 

4 

22

347 

60.7

69 

24

44 

11

594 

91

- 239 

100

165 

29

905 

135

Clear Creek near Winslow, Ariz. 

..._._. 

Dec. 6, 1942. .................

Feb. 8, 1943-. 

^

231 

222

, 54 28 397 230 

234

49 619 

595 

Zuni River at month near Hunt, Ariz. 

Feb. 10, 1943 « 621 12 251 81 973 344 547 1,575 

Moenkopi Wash near Tuba, Ariz. 

NOT 9 1942

Nov. 12 

2 

1

209 

195

-

110 

109

41 

38

317 

293

214 

220

757 

721

119 

94 

Verde River near Camp Verde, Ariz.

Nov. 30, 1942. . .

Feb. 7, 1943..... ..........

186 

267

64.4 

55.7 22

SO

47

38 

31

41

37

303

278

85 

62

24 

21 
Oak Creek at Sedona, Ariz.

Feb. 7, 1943....... ........... 22.4 146 8.2 3

Oak Creek near Cornville, Ariz.

Nov. 30, 1942..._______ .......

Feb. 7, 1943..................

30 

55

36.4 

27.0 16

42 

32

22 

15

8

O 

.0

11

240 

180

4.5 9'

9

Spring flowing into Oak Creek near Cornville, Ariz

Feb. 7, 1943.................. 46.1 18 55 24 14 284 5 20 

Page springs at fish hatchery near Cornville, Ariz.

Feb. 7, 1943.................. '35.1 16 42 18 14 236 4 8

Waste from fish hatchery near Cornville, Ariz.

Feb. 7, 1943.................. 36.9 246 8

Williams River at Planet. Ariz.

Nov. 3, 1942... .............. .

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

Feb. 2,1943.. ................

Feb. 23.. -.-..._- _.........

Apr. 13-14---.-.. ..-...-

July 14.... .---...-...

Aug. 17.. ........ ............

Sept. 14 ........ ...........

17

19

20

16

20

15

16

14

22

15

72.0

70.5

65.9

72.5

66.6

64.8

66.1

65.3

68.1

66.3

41

44

52

38

13

13

25

14

98

86

85

239

233

255

224

252

249

246

60

68

49

77

62

71

56

1°"o

All American Canal at reservation turnout, near Yuma, Ariz

Jan. 27, 1943................. 98.0
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in parts per million Contin

All American Canal at Station 60, near Yuma, Ariz.

Date of collection

Feb. 1,5, 8, 1943. ..........

Mar. 1-2, 5, 8, 15, 22, 24, 28- 

Discharge 

(secondfeet)

Specific 

conduct- 

-^-ance 

(KX106 

st25°C.)

100 

102

Silica 

(SiOs)

6.5

Iron

(Fe')

Calcium

(Ca)

92

Magnesium 

(Mg)

25

Sodium 

and potassium 

(Na+K)

95

Bicarbonate 

(HCOs)

160

Sulfate 

(SO.)

295

dnlo

ride 

(01

Yuma Main Canal below power plant near Yuma, Ari

Jan. 27, 1943.--. 97.8 

Yuma Main Canal below Colorado River siphon at Yuma, 

Jan. 28, 1943.--., 470 98.0

Colorado River at gage at Ynma, Ariz. 

Jan.28, 1943-.. 

Feb. 1-6, 8-10-- 

11,600 

9,970

102 

102 94 - 25 98 164 296 

East Main Canal at Mexican Boundary near San Luis, A

Jan. 28, 1943. ....... .... 98.2 92 25 91 . 161 288 

Drain at boundary pumps near San Luis, Ariz.

Jan. 28, 1943.... .......... 245

-

154 55 331 322 450 4
Gila River near Solomonsville, Ariz.

Date of collection

June 23, 1943.... __ .....

June 29-30....... 

Julyl-4 ..............

July 5-9 ... ..... ..... ...

July 11. ................

July 26-31 ..... ......

Aug. 10. ....... ..... ...

Aug. 11-20- .

Aug. 21-28, 30-31 . 

Sept. 1, 4-10-... ..........

Sept. 11-20... .............

Sept. 15 -... .- - 

Sept. 21-24... .............

Sept. 25-29.... ............

Discharge 

(secondfeet)

43 

648 

422 

80 

64 

164

118 

1,960 

178 

238 

92 

56 

57 

76 

902

Specific 

conductance 

(KXW6 

at 

25° C.)

135 

52.8 

62.4 

101 

116 

75.7

88.7 

38.4 

68.2 

56.9 

91.7 

187 

102 

95.8 

41.1

Silica 

(SiW

42

48

32 

30

22 

35 

42 

39

41

27

Iron

(Fe)

0.22 

.14

.10

.08

.10 

.10 

.11 

.11

.19 

.05

Calcium 

(Ca)

76

48 

66 

71 

54

57 

34 

48 

41 

59 

64 

64 

54 

34

Magnesium

(Mg)

17

ii

16 

16 

11

13 

10 

12 

12 

15

16 

14

8.6

Sodium

(Na)

1

" 

12 

14 

87

1.

56 

108 

132 

15 

115 

38

Potassium 

(K)

'8

r4 

7 

il

4 4

0 

3 

r9 

5.9

7.8 

7.8 

7 

7.8 

5.1

Bicarbonate 

(HC03)

196 

256 

182 

215 

198 

204

212 

195 

192 

182 

228 

229 

220 

' 197 

146

Sulfate 

(S0t>

60

43 

51 

72 

31

35 

11 

34

26 

40

47 

47 

46 

42

Chloride 

(Cl)

300 

42 

90 

208 

220 

122

156 

18 

102 

71 

158 

202 

190 

174 

33

F

Gila River above Tidwell Canal head, near Solomonsvill

June 23, 1943..............

Sept. 15...... .............

137 

101

300

188

Gila River above San Jose Wash, near Solomonsville, 

Sept. 15,1943............:. 105 66 17 132 232 56 192 

Gila River above Union Canal heading, near Solomonsvi

Sept. 15, 1943..............

Sept. 16.. ....... .......

107 

106

67 

67

18 

18

129 

129

230 

230

54 

53

196 

196
MISCELLANEOUS STREAMS IN COLORADO RIVER BASI

Chemical analyses, in parts per million Continu

Gila River below San Simon Creek, near Solomonsville, 

Date of collection

June 23, 1943..............

Discharge 

(secondfeet)

Specific 

conductance 

(KX105 

at 

25° C.)

142 

126

Silica 

(Si02)

Iron

(Fe)

Calcium 

(Ca)

83

Magnesium 

(Mg)

21

Sodium 

(Na)

Potassium 

(K)

158

Bicarbonate 

(HCOs)

278

Sulfate 

(SCW

'82

Chloride 

(CD

255 

226

Flu

ri

(F

Gila River above Graham Canal heading, at Safford, A

Sept. 16, 1943.............. 124 78 20 155 268 77 222 

Gila River at Safford, Ariz.

Sept. 16, 1943... ........... 122 75 20 163 273 78 222 1

Gila River at Smithville Canal heading, at Thatcher, Ar

June 23, 1943..............

Sept. 16... ................

1

213 

.133

64 

64

33 

19

414 

191

276 

239

185

81

550

262 

Gila River near Thatcher, Ariz.

June 23, 1943..... .........

July 5, 8, 12, 15, 19, 23, 26, 29

Aug. 2, 5, 9..... ...:..:....

Aug. 11, 16, 19, 23, 26, 30 

Sept. 2... ............. _ .

Sept. 6, 9,13,20, 23 ..

Sept. 16-.. ....... ........

Sept, 28-30. ____ . .......

226

222

157

162

107

100

182

196

42.0

'

74

44

71

84

39

23

11

33

33

11

' 230

' 169

270

291

35

275

208

284

306

147

127

130

151

166

42

485

445

295

290

150

162

355

390

36

1
Gila River above Dodge-Nevada Canal heading, near Pima

June 24, 1943....... _

Sept. 16...................

282

210 72 ao 342 309 188

645

420 

Gila River at Pima, Ariz.

June 24, 1943...... ___ ..

My 5, 8, 12, 16, 19, 23, 27, 29

Aug. 2, 5, 9................

Aug. 11, 16, 19, 23... ......

Aug. 25-26, 30.... _

Sept. 2, 6, 9, 13, 20, 23- 

Sept. 16 ...............

Sept. 17 ..................

Sept. 28-30................

289

198

178

143

86. 8

229

279

275

44.3

62

54

47

80

98

40

22

13

33

34

35

11

340

241

410

, 498

' 474

40

329

263

321

498

526

149

165

174

205

234

231

47

565

380

295

220

114

465

540

520

40

2

1

Gila River above Fort Thomas consolidated canal heading, near G

June 24, 1943..............

Sept. 17. 

379

359

96

99

45

45

686

641

469

481

401

383

790

730 :::

Gila River near Glenbar, Ariz.

June 24, 1943.. ............

Julv 7, 9, 13, 16, 20, 23, 27, 30

Aug.2-3,6, 10, 13, 17,25,27,31

Sept. 3, 7, 10, 14, 21, 24 

Sept. 17 ..... ... ....

Sept. 28-29. ........

319

275

116

287

309

355

41.3

70

41

58

91

38

28

9.2

40

44

11

499

. 197

577

647

36

382

210

360

469

146

262

149

323

371

51

660

555

168

580

655

735

30

1

1

Gila River at Eden Crossing, near Eden, Ariz.

June 24, 1943.... _ .......

Sept. 17 ____ ... _ .

351

341 78 42 624 410 356

770

1£ 
MISCELLANEOUS STREAMS IN COLORADO RIVER BASI

Chemical analyses, in parts per million Contin

Gila River near Ashurst, Ariz.

Date of collection

June24,1943_.._.______.__

July 7, 9, 13, 16, 20, 23, 27. 30 

Aug. 3, 8, 10, 13, 17, 25, 27, 31 

Aug. 20.. .................

Sept. 3, 7, 10, 14, 21, 24.-...

Sept. 17...................

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

Discharge 

(second-- 

feet)

Specific 

conductance 

(KX10* 

at 

25° C.)

574 

486 

101 

296 

449 

573 

50.5

Silica 

(SiOs)

Iron 

(Fe)

Calcium 

(Ca)

174 

162 

40

103 

196

Magnesium 

(Mg)

95 

72 

9.4

70

86

Sodium 

(Na)

Potassium 

(K)

1,121 

825 

166

792 

990

Bicarbonate 

(HCOj)

302 

318 

198

236 

401

Sulfate 

(SOi)

770 

565 

133

516 

672

Chloride 

(Cl)

1,570 

1,165 

138 

600 

1,085 

1,390 

42

Flu

rid

(F

1

1

Gila River above Colvin-Jones Canal heading, near Fort Thom

June 24, 1943... __ ... _ .

Sept. 17........ _ .. __ .

802

731

s.

332 119 1,137 287 825

2,100

1,910 

Gila River at Fort Thomas, Ariz.

June 15, 1943..............

June 24.. .................

July 6, 9, 13, 16,20,23,27,30

Aug. 8,9,11,13, 17, 25, 28, 31

Aag. 21. ...... _ .........

Sept. 1,7, 10,14,21,24.. 

Sept. 17..____.______..__._

Sept. 38-29... _______

850

862

580

115

471

635

748

48.2

Aon

261

48

254

374

41

148

92

11

105

114

11

1,276

907

184

1,021

1 Uft

48

416

228

207

203

338

150

970

628

140

688

802,

60

2,310

2,290

1,530

174

1,135

1,700

2,020

44

1.

1
Gila River near Geronimo, Ariz.

June 25, 1943..............

My 6, 10, 13, 17, 20, 23, 28, 31

Aug. 4, 6, 10, 14, 18, 21, 25, 28

Sept. I....... .............

Sept. 4, 8,11, 15,22,25.....

Sept: 17..... ...........

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

718

626

(')

255

653

732

55.1

290

243

329

88

98

106

997

1,083

1,187

262

130

259

680

727

809

1,850

1,650

(8)

545

1,770

1,970

41

1

1

Gila River at Geronimo Crossing, near Geronimo, Ari

June 24, 1943..............

Sept. 17.. ..............

434

516

87

214

25

72

752

826

254

224

228

556

1,070

1,320 

Gito River at Black Point, Ariz.

June 24, 1943..............

July 6, 10, 13, 17, 20, 24, 28, 31

Aug. 3, 7, 12, 14, 18, 21, 25, 28

Sept. 1........ ..

Sept. 4, 8, 11, 15, 22, 25 

Sept. 17,. - ....-

443

410

433

(»)

236

467

510

490

50.5

174

158

217

220

57

67

70

68

696

772

816

781

212

150

253

276

456

495

551

526

1,080

1,000

1,085

(10)

510

1,210

1,290

1,240

40

1

1

Gila River at Bylas, Ariz.

June 25, 1943..............

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

July 4-10......... ......

July 12-15, 17-20..........

July 21-26, 29-31 ..........

July 27-28...... ...........

Aug.l.. .... .... ......

Aug. 2-7. ............

Aug. 8, 10 ..... .........

Aug. 11-12..... ...........

Aug. 14-18................

Aug. 19-20................

Aug. 21-23..... _._. ....

Aug. 24-31.. ..............

19

59

160

10

4.3

50

84

20

417

381

81.1

354

394

401

232

404

128

1"3

39.6

173

302

366

112

48

38

40

40

34

33

">A

39

32

0.18

.11

.13

.11

.12

,05

.03

.08

.18

51

165

159

171

98

140

47

34

44

66

118

130

51

12

47

52

50

24

54

11

13

12

15

35

46

12

11

49

574

589

35

65

21

03

13

29

49

59

164

2

<)

7 2

7 2

8

2

S

1

t

1

*<$

6,8

232

253

233

182

212

208

99

219

2 i3

230

230

255

186

216

67

254

348

354

217

422

145

134

100

218

333

385

114

1,015

945

98

870

970

980

505

1,040

208

108

306

675

880

174

1

1

1

1

1

1

1

1 

1 

See footnotes at end of table.
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in parts per million Continu

Gila River at Bylas, Ariz. -Continued

Date of collection

Sept. 1-6, 8-10,1943........

Sept. 11-18, 20... _ .......

Sept. 18 ........... .....

Sept. 21-25..... ......... ..

Sept. 26........ ...........

Sept. 27-30.......... ....

Discharge 

(secondfeet)

27 

10 

8.6 

9.6

Specific 

conductance 

(KX10& 

at 

25° C.)

395 

470 

468 

484 

100 

47.5

Silica 

(SiOj)

43

38

38

25

Iron

(Fe)

0.06 

.03

.04

.07

Calcium 

(Ca)

152 

183 

206 

204 

40 

33

Magnesium

(MR)

53 

63 

64 

64 

14 

8.2

Sodium 

(Na)

611 

735 

71 

764 

1' 

50

Potassium 

(K)

17 

16 

4

18 

8 

4.2

Bicarbonate 

(HCOs)

216 

206 

236 

246 

186 

138

Sulfate

(S04)

399 

496 

486 

500 

94 

47

Chloride 

(Cl)

960 

1,180 

1,185 

1,210 

162 

44

Flu

rid

(F

1.

1.

1.

.

Gila River at Calva, Ariz.

July 6, 10, 28, 1943.........

Aug. 2, 4, 7, 13, 18, 28......

Sept. 4, 8, 15, 25...........

Sept. 18... ................

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

321

128

57.1

442

510

45.2

138

52

1S6

209

41

13

62

72

495

206

721

804

190

218

168

218

282

147

430

486

80S

206

58

1,150

1,330

33

1 

1

San Francisco River at Clifton, Ariz. (Samples collected 1% miles belo

June 16-20, 1943...........

June 21-28.. _..-....... 

Julyl.- .. ... ... ..... 

July 2-10....... ...........

July H-14.................

J,,lw1K-9/>

JuiyJl-31.................

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

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

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

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

Sept. 11-19................

2i

22

130

288

41

28

156

81

59

64

112

56

30

191

216

83.6

42.6

135

16873 a

84.5

97,2

76.7

M.7

80.5

107

42

44

61

51

45

42

44

42

37

41

44

009

,09

,08

.06

M

.11

.10

.08

.13

.11

.10

100

UO

59

36

82

94

5?

58

63

52

43

63

64

16

19

14

11

14

15

14

13

15

13

12

12

13

27

3C

8

C

167

25

70

92

111

84

t

S

14

2

1

4

8

8.6

3

4.8

8.0

7.2

7.2

6

8

[0

199

191

J!05

189

?!01

207

337

197

209

200

191

209

208

26

26

13

6.6

23

22

9.3

15

25

17

12

16

20

505

580

160

40

315

415

tin

164

187

133

76

144

228

1

1

1
Sept.21-23 . .

Sept. 24-29 .............

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

37

258

84

109

46.2

70.3

30 .19

61

38

13

9.3

144

40

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

195

113

22

42

236

58

128

1

Eagle Creek at Phelps-Dodge pumping plant, near Morenci

July 22-31, 1943 ._ _.. ....

Aug. 1-10 _

Aug. 11-20 .

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

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

Sept. 11-20 . _ ......

Sept. 21-26, 28-30.. ___ .-

Sept. 28 .. __ .... . __ .

45.3

40.7

39.6

365

45.5

47.9

41.2

20.2

49

47

45

43

49

47

45

0.11

.08

.12

.24

09

.09

.11

43

39

37

36

42

43

38

19

17

16

15

19

21

17

28

25

24

21

3

3

27

2.2

4.2

4.6

4 Q

0

1

3.0

239

216

213

203

247

258

218

10

8.6

8.8

9 0

a 7

8.1

9.8

30

25

19

16

25

28

23

2.0

0

San Simon Creek at mouth, near Solomonsville, Ariz

Sept. 16, 1943.. . ........ 121 72 16 159 239 75 222 

Ash Creek at mouth, near Pima, Ariz.

June 24, 1943.... ..........

Sept. 16... .

304 

284 85 33 516 595 221

585 - 

515 

Cottonwood Wash at Pima, Ariz. 

Sept. 26, 29-30, 1943....... 49.0 46 12 43 185 43 41 

Matthews Wash near Glenbar, Ariz.

Aug. 7, 1943... ..... 

Sept. 26 ___________

73.2

71.8

28 

12

11 

9.4

122 

138

239 

214

84 

68

66

87

Markham Wash at Eden, Ariz.

Sept. 26, 1943. ........ 18.0 26 14 93 14 0 
138 QUALITY OF SURFACE WATERS, 1943

Contin

1 ; 8 1

s .f

cal

l

i

(.SB

s

-an

 0

o

CO

U3

O

n

^

s

CM

Si

8

^t

u

t

s

CO

us

sCO

1

J

i -

e

CO

o

^

oc

COCN

o 

e*

I

«

s

^4

1 1

\ I

CO 

00

at

cooco cc

CNOe4>-

J

o»o 

yJ^C^*"£

r3

^

s

g

rJ ;

8

e

a

eq 

0

|

PS 

0

i

K^*

c«-

i

e

8

«ces

g

a

1C

orJg

I

a

!

* 

'a^

*«

'o

fJ

oo

IO

oo

(M

8

O 

CO

o

!^

SI

s

§

s

8

8

!Sgi^l ^"

1

 

'Ni"*1

j-e-t

III

oo

^

s
COLORADO RIVER BASIN 139

S

o

i

a

se

£3

S3

00 O

2

23238

s

i

t>>

*

8

K

l>

£

Wy 15,943..... 22,26,9, Aug. 9,11,16,19,26, 30. 2,5 

Rant. 2

S

«4 

CO

ill

.

8S

ss

si

8

CO* 

' »B

' ^ 't

rjMJOBS

I «

1

s

s

§

0 

US

us

3

§

s

3

8

33

July 12,59 23,29.5, 8. Ane.2.5.9. 11.16.9. 236.30

R*

OUS

83

j

j i

j.

IOIO

10

^^

sgg

SIS 1-4

8S

 

S3

88

! i

; j

s«;

1 j

i *

8

Jj

2C

: £ 

en co CM

Ray

S

0

S

oc 

oa

scc

s

ts

1

^

5

K

5e

?

g

i

«

* 

o 

>lfl

. t>

4

I

» 

4

\ 

!

r

11

2

0

i

i

i i

0 

|Q

S

CO

IOOC « *

(« 

^H 

CM

CO

CO

a

00 t^

t oc

 i^

I

iO C

i

\

 =5

CO CMCO

|

| j

O 

IO

31

8

CO

sCO

'

CO

CO

s

j

o

oo

ss

S88«

<OQO

SIS COCO

isCO t*-

^

coco

IOCO

i I

i i

sSssi

j

13,6 20473 7-8, 3,6,10,13,17,20,24,27,31 3,7 ....... __ -10,14,21,24... __ .

17 . 

CO

^

IIIiH

S

1 s

 1

C 

1C

1

1

sff

!

P

s

1

ss g>~

,1

»

,

> >

4

3

aei£

* 

C*

s

$

l>

C*

i= «§"!

g

X

I

o

p

p

iii°

CO

I

«

s

to

CO

*Mt*»

com

1

[a

S 

;"5j:

iRJIU

i.

§

0

9

?

i
140 QUALITY OF SURFACE WATERS, 1943

s ;

- I

ft 1

 8 «

e -a

55. *

e 4

SS "e £

P o H

ft '?» *.

I

SSo 0 "^

.

II

S3

j-5'N 

N.«3*

S;t

j^tOTH*

till

s

a

e

CO

£

s

E

CC

cc

s

1

\

dCN

«

CD

ti

3

1

CO

I>CO

I

s

g

CO

o

<M

^

CO 

0>

CO 

IM

;

OC3 CO t*

§

IM

CO

R

S

coo

co«

IMK

55* 

' -ttoa

oc

c

s

oc 0

,

1

i

a

1

e

1

I

-

1

e»

i

e

ce

1

G 

CY

1

tr

8

o

OO

 tf

OO

9

I

IO

<M

$

to

OO3

3

s

a

2
Colvin-Jones Cana Inear Fort Thomas, Arlz.

July 16-17, 23, 27, 1943.....

Aug. 10... __ . _ ... ....

318

93.1

140 42 489 228 341 735

110

* Sample collected at highway bridge about 1 mile above the springs. 

9 At Cippoletti weir about K mile below Lyman Dam.

* Below Salado Springs.

* 300 yards above gaging station. 

6 About 400 yards below Lyman Dam.

'Ice broken to get sa

* Specific conductanc

8 Chloride ranged fro

» Specific conductance

1° Chloride ranged from 
142 QUALITY OF SURFACE WATERS, 1943

t»m s 

 -2

« "s 

a § i

2* I

DO <3 li

il SJS

II
COLORADO RIVER BASIN 143

§3

to us
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in equivalents per million Conti

Little Colorado River near Hnnt, Ariz.

Feb. 10, 1943 «_.... .........

Dee. 9,1942. .................

Feb. 10, 1943... .. .. ..

0.8 

.3

6.49 

6.79 

6.29

3.12 

5. 51 

3.04

20.01 

21.17 

17.84

4.33 

4.28 

4.23

8.89 

11.41 

8.18

16.3

17.7

14.7

Little Colorado River near Woodruff, Ariz.

Dec. 8, 1942..................

Feb. 9, 1943-................

4

7

2.30 

2.30

1.89 

1.56

1.42 

1.98

3.57 

3.93

1.42 

1.23

0.6

.6

' Little Colorado River at Grand Falls, Ariz.

Nov. 9, 1942..................

Feb. 6, 1943..- ............

4 

41

'

2.80 

2.30

1.15 

.99

20.10 

15.31

3.93 

3.44

3.85 

3.33

16.2

11.7

Spring inflow into Little Colorado River near St. Johns, A

Feb. », »43 «...-.._. ._._.. 9.53 4.03 9.09 8.62. 7.77 6.1

Silver Creek near Woodruff, Ariz.

Dec. 8, 1942. ... .. .... .. 

Feb. 9, 1943.. ................

4 

6

....I... 2.10 

2.30

1.89 

1.89

1.39 

1.96

3.59 

4.39

1.23 

1.19

.5

.5

Puerco River near Adamana, Ariz.

Feb. 5, 1943........... _ .... 3 2.70 1.07 7.56 3.93 5.14 2.1
COLORADO BIVEB BASIN

g

c<

C

<e ^

^

§

t* 

frCC

t^.

C5

t>

9 

eo

g

ca

i 

J

C

o

teo

k rf

 §

^

S3

s

*

S3

re

89

§§

CON

**-

32

ss

S3

Jj.

4

£

\

u

1

3o

i

.*

14

1 S

C

o

g

C5

O 

O

§ 

 *

s

o

OS

(M

1

i
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

*

Chemical analyses, in equivalents per million Con

Page springs at fish hatchery near Cornville, Ariz.

Date of collection

Feb. 7, 1943..................

Discharge 

(secondfeet)

Specific 

conductance 

(KX10« 

at 25° C.)

Silica 

(SiOz)

Iron 

(Fe)

Calcium 

(Ca)

2.10

Magnesium 

(Mg)

1.48

Sodium 

and potassium

(Na+K)

0.61

Bicarbonate 

(HCO.)

3.87

Sulfate 

(SO.)

0.08

Chlo

ride 

(CD

0.2

Waste from fish hatchery near Cornville, Ariz.

Feb. 7, 1943.................. 4.03 .2

Williams River at Planet, Ariz.

Nov. 3, 1942...... ............

Nov. 30......................

Feb. 2, 1943..................

Feb. 23.. ....................

Apr. 13-14...--... ....-.--

June 15. ..................

JubfH.... . ........ ..

Aqg.2 _____________

Aug. IT......................

Sept. 14

17

19

20

16

20

15

16

14

22

15

2.05

2.20

2.60

1.90

 1.07

1.07

2.06

 1 15

4.25

3.73

3.71

3.92

3.82

4.18

3.67

4.13

4.08

4.03

1.25

1.42

1.02

2.1

1.7

2.0

1.5

1.6

1.6

All American Canal at reservation turnout, near Yuma, A

Jan. 27, 1843..................

All American Canal at Station 60, near Yuma, Ariz.

Feb. 1,5, 8, 1943..............

Mar. 1-2, 5, 8, 15, 22, 24, 28....

4.59 2.06 4.11 2.62 ft. 14 1.9

0.0
COLORADO RIVER BASIN 147
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in equivalents per mittion Conti

Gila River near Solomonsville, Ariz.

Date of collection

June 23, 1943..............

June 29-30... __ . _ .....

Tiilv 1-4

July 5-9... 

July 11... ............ ..

July 26-31.. 

Aug. 10.. ............... ..

Aug. 11-20.. 

Aug. 21-28, 30-31 ____ ...

Sept. 1, 4-10 _ . __ . __

Sept. 11-20 

Sept. 15 ...............

Sept. 21-24 ....... ......

Sept, 25-29 .........

Discharge 

(secondfeet)

43 

648 

422 

80 

64 

164

118 

1,960 

178 

238 

92 

56 

57 

76 

902

Specific 

conductance 

(KX10* 

at 

25° C.)

Silica 

(SiOi)

Iron 

(Fe)

Calcium 

(Ca)

3.79

2.40 

3.29 

3.54 

2.70

2.85 

1.70 

2.40 

2.05 

2.94 

3.19 

3.19 

2.70 

1.70

Magnesium 

(Mg)-

1.40

.90 

1/32 

1.32 

.90

1.07 

.82 

.99 

.99 

1.23 

1.32 

1.32 

1.15 

.71

Sodium 

(Na)

.'l-'

3.2 

5.{ 

6.1 

3.78

4.7 

1.4 

3.4 

2.44 

4.70 

5.74 

5.£ 

5.00 

1.65

Potassium 

(K)

4

1 

6 

1 

0.11

9 

3 

5 

.15 

.20 

.20 

2 

.20 

.13

Bicarbonate 

(HCOa)

3.21 

4.20

2.98 

3.52 

3.25 

3.34

3.47 

3.20 

3.15 

2.98 

3.74 

3.75 

3.61 

3.23 

2.39

Sulfate 

(804)

1.25

.90 

1.06 

1.50 

.65

.73 

.23 

.71 

.54 

.83 

.98 

.98 

.96 

.87

Chloride 

(01)

8.46 

1.18

2.54 

5.87 

6.20 

3.44

4.40 

.51 

2.88 

2.00 

4.46 

5.70 

5.36 

4.91 

.93

Flu

rid

(F

00

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.Gila River above Tidwell Canal head, near Solomonsville, 

June 23, 1943..............

Sept. 15. ___ ........ ....

8.46

5.30

Gila IJiver above San Jose Wash, near Solomonsville, A

Sept, 15, 1943.............. 3.29 1.40 5.72 3.80 1.17 5.42 

Gila River above Union Canal heading, near Solomonsville

Sept. 15, 1943..... 

Sept. 16 

3.34

3.34

1.48

1.48

5.63

5.62

3.77

3.77

1.12

1.10

5.53

5.53
COLORADO RIVER BASIN 149

ft

9

t>-«C>

c

«5CC

s;

28

K

rt cr;

oven 

eo'co

i 

1

to

FH

GQ

 a

OC

£

!

«r ir

s

a

1

cc

c

coc

CC

J

Z

g

c

§

i

CO

o 

IS

00

«

1

cc

oc

" **:

'1

8

oc

c

f

<N

 ^

F^

cs

TTl 

K

f 

1>

§

s

C-l

C 

CM

cr 

a

CC

s<

t.

IS

 *

;

i

s

oc

c

§

s

OS

CC 

CC

OS

t>i

«;

OS

a

o:

u:

ce

CC

C

§

J 

CC-a 

er

c

1C

s

«

t 

t 

at 

Tt

,,

<£

ut^

s

9

o

o

1 i

 ^

C4

o

t-*

o

O3

"ct
MISCELLANEOUS STREAMS IN COLORADO RIVER BASI

Chemical analyses, in equivalents per million Cont

Gila River at Pbna, Ariz.

Date of collection

June 24, 1943. .............

July 5, 8, 12, 16, 19, 23, 27, 29 

Aug. 2,5,9. ..... ___ .

Aug. 11, 16, 19, 23.. 

Aug. 25-26,30- 

Sept. 2, 6, 9, 13, 20, 23......

Sept. 16 __ .... _ .......

Sept. 17. 

Sept. 28-30.-.. .. _ ....

Discharge 

(secondfeet)

Specific 

conductance 

(KX10» 

at 

25° C.)

Silica 

(SiOz)

Iron 

(Fe)

Calcium 

(Ca)

3.09

2.70

2.35 

3.99 

4.89 

2.00

Magnesium 

(Mg)

1.81

1.07

2.71 

2.80 

2.88 

.90

Sodium 

(Na)

Potassium 

(K)

14.78

10.47

17.84 

21.66 

20.61 

1.72

Bicarbonate 

(HCOs)

5.39

4.31

5.26 

8.16 

8.62 

2.44

Sulfate 

(S04)

3.44

3.62

4.27 

4.87 

4.81 

.98

Chloride 

(Cl)

15.93

10.72 

8.32

6.20 

3 22 

13.11 

15.23 

14.67 

1.13

Flu

rid

(F

0.

.

.

Gila River above Fort Thomas consolidated canal heading, near G

June 24, 1943..............

Sept. 17... .... .... ..... 

4.79 

4.94

3.70 

3,70

29.83 

27.88

7.69

7.88

8.35 

7.97

22.28 

20.59 

Gila River near Glenbar, Ariz.

June 24, 1943..............

July 7, 9, 13, 16, 20, 23, 27, 30

Aug. 2-3, 6, 10, 13, 17,29,27,31

Sept. 3, 7, 10, 14, 21, 24.....

Sept. 17

Sept^si ..... .. 

-

3.49

2.05

2.89

4.54

1.90

2.30

.76

3.29

3.62

.90

21.71

8.55

25.07

28.15

1.57

6.26

3.44

5.90

7.69

2.39

5.45

3.10

6.72

7.72

1.06

18.61

15.65

4.74

16.36

18.47

20.73

.85

.1

.0

.0

Gila River at Eden Crossing, Bear Eden, Ariz.

June 24, 1943..............

Sept. 17..... 3.89 3.45 27.14 6.72 7.41

21.72

20.31 
Gila River near Ashurst, Ariz.

June 24, 1943..............

July 7, 9, 13, 16, 20, 23, 27, 30

Aug. 3, 6, 10, 13, 17, 25, 27, 31

Aug. 20.. ....... ........

Sept. 3, 7, 10, 14, 21, 24.....

Sept. 17...................

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

8.68

8.09

2.00

6.14

9.78

7.81

5.92

.77

5.76

7.07

48.75

35.85

7.21

34.42

43.06

4.95

5.21

3.25

3.87

6.57

16.03

11.76

2.77

10.74

13.99

44 28

32.86

3.89

16.92

30.60

39.20

1.18

0.

Gila River above Colvln-Jones Canal heading, near Fort Tho

June 24, 1943..............

Sept. 17...... .......... 16.57 9.79 49.42 4.70 17.18

59.23

53.87 

Gila River at Fort Thomas, Ariz.

June 15, 1943..............

June 24... _________

July 6, 9, 13, 16, 20, 23, 27, 30

Aug. 3, 6, 11, 13, 17, 25, 28, 31

Aug. 21.................

Sept. 1, 7, 10, 14, 21, 24.. 

Sept. 17...................

Sept. 28-29. ___ .........

23.96

13.03

2.40

12.68

18.67

2.05

12.17

7.57

.90

8.63

9.37

.90

55.47

39.42

7.99

44 SO 

51.29

2.07

6.82

3.74

3.39

3.33

5.54

2.46

20.20

13.07

2.91

14.32

16.70

1.25

65.15

64.58

43.15

4.91

32.01

47.95

56.97

1.24

Gila River near Geronimo, Ariz.

June 25, 1943.. ............

July 6,10,13,17,20,23,28,31

Aug. 4, 6, 10, 14, 18, 21, 25, 28

Sept. 1 .- ___

Sept. 4, 8, 11, 15, 22, 25.....

Sept. 17...... .............

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

14.47

12.13

16.42

*

7.24

8.06

8.72

43.34

47.10

51.62

4.29

2.13

4.25

14.16

15.14

16.84

52.18

46.54

15.37

49.92

55.56

1.16

Gila River at Geronimo Crossing, near Geronimo, Ariz.

June 24, 1943..............

Sept. 17.......... .........

4.34

10.68

2.06

5.92

32.71

35.91

4.16

3.67

4.75

11.58

30.18

37.23 
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in equivalents per million Cont

Gila River at Black Point, Ariz.

Date of collection

June24, 1943.... _..._..__.

June 25 ___________

July 6, 10, 13, 17, 20, 24, 28, 31 

Aug. 3, 7, 12,14,18,21,25,28 

Sept. 1.... ................

Sept. 4, S, 11, 15, 22, 25 -

Sept. 17.. ....... ..........

Sept. 18... ...... ..........

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

Discharge 

(secondfeet)

Specific 

conductance 

(KX10' 

at 

25° C.)

Silica 

(Si02)

Iron 

(Fe)

Cal- 

-cium 

(Ca)

8.68

7.89 

10.83 

10.98

Magnesium 

(Mg)

4.69

5.51 

5.76 

5.59

Sodium 

(Na)

Potassium 

(K)

30.25

33.5 

35.4 

33.9

8 

4 

7

Bicarbonate 

(HCOa)

3.48

2.46 

4.15 

4.52

Sulfate 

(S04)

9.49

10.31 

11.47 

10.95

Chloride 

(Cl)

30.46

28.20

30.60

14.38

34.13 

36.38 

34.97 

1.13

Flu

rid

(F

0.0

.0

Gila River at Bylas, Ariz.

June 25, 1943..............

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

July 4-10..................

July 12-15, 17-20. . ........

July 21-26, 29^-31. ...___.._

July 27-28...... ....... ....

Aug. 1...... ......... .

Aug. 2-7.. __._._... .......

Aue. 11-12. . . 

Aug. 14-18... . .. .... ...

Aug. 19-20......... ...... .

Aug. 21-23. _-- .... ...

Aug. 24-31.......... 

Sept. 1-6, g-10 .... ... ...

Sept. 1H8.20. ...........

Septi 18....... 

Sept 21-25...... 

Sept. 26... .. ...... -

Sept. 27-30.... .........

19

59

' 160

10

4.3

50

34

20

27

10

8.6

9.6

2.55

8.24

7.94

8.54

4.89

6.99

2.35

4.19

2.20

3.29

5.89

6.49

2.55

7.59

9.13

10.28

10.18

2.00

'1.65

.99

3.87

4.28

4.ii

1.97

4.44

.90

1.48

.99

1.23

2.88

3.78

.99

4.36

5.18

5.26

5.26

1.15

.67

4.8

21.61

24.96

25.61

15.5

28.3

9.4

12.7

5.7

12.6

21.4

25.7

7.13

26.57

 31.96

31.9

33.22

6.4

2.17

3

)

0.18

.18

3

J

I

2

5

1

)

3

.15

.43

.41

L

Aft

I

.11

3.80

4.15

3.82

2.98

3.47

3.41

1.62

3.59

4.07

3.77

3.77

4.18

3.05

3.54

3.54

3.38

3.87

4.03

3.05

2.26

1.39

5.29

7.25

7.37

4.52

8.79

3.02

3.83

2.08

4.54

6.93

8.02

2.37

8.31

10 33

10.12

10.41

1.96

.98

28.63

26.65

2.76

24.54

27.36

27.64

14.24

29.33

5.87

10 32

3.05

8.63

19 04

24.82

4.91

27.08

33.28

33.42

34.13

4.57

1.24

.0

.

.0

.0

.0

.0

.0

.

.0

.0

.0

.0

.0
Gila River at Calva, Ariz.

My 6, 10, 28, 1943. .

Aag.2, 4, 7. 13, 18, 28- 

Aus:.24 _ 

Sept. 4, 8, 15,25....... ....

Sept. 18... ., _ ...........

Sept. 29... ________ ..

6.89

2.60

7 79

10.43

3.37

1.07

5.10

5.92

21.51

8.96

31.34

34.96

3.11

3.57

2.75

3.57

5.87

3.06

8.95

10.12

22.70

5.81

1 (U

32.43

37.51

.93

0.

.

San Francisco River at Clifton, Ariz. (Samples collected 1% miles belo

June 15-20, 1943...........

June 21-28 _________

June 29-30. _________

Julyl ....... ...........

July 2-10-. ................

July 11-14.................

July 15-20...... ......... ..

July 21-31........... ......

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

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

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

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

Sept. 11-19..... .. . .

Sept. 21-23................

Sept. 24-29.... ....... .....

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

24

22

130

288

41

28

156

81

59

64

112

56

30

37

258

84

4.99

5 40

2.94

1.80

4.09

4.69

2.85

9 SO

3.14

2.60

2.15

2.65

3.19

3.04

i an

1.32

1.56

1.15

.90

1.15

1.23

1.15

1.07

1.23

1.07

99

QQ

1.07

1.07

.76

11.8

13.1

4.0

1.6

7.26

9 7

3.04

4 00

4.83

3.65

9 4

4.2

6.0

6.2

1.7

3

0

8

7

0.22

1

.12

.20

IS

1fi

2

4

7

6

5

3.26

3.13

3.36

3.10

3.29

3.39

3.88

3.23

3.43

3.28

3.13

3.43

3.41

3.20

1.85

.54

.54

.27

.14

.48

.46

.19

.31

.52

.35

.25

.33

.42

.46

.87

14.24

16.36

4.51

1.13

8.88

11.70

3.10

4.63

5.27

3.76

2.14

4.06

6.43

6.66

1 (U

3.61

.

.

.

.

.

.

.

.

.

.

.

Eagle Creek at Phelps-Dodge pumping plant, near Morenc

July 22-31, 1943...........

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

Aug. 11-2Q.. ..............

Aug. 21-51. ...............

Sept. 1-10 

Sept. 11-20 .... .

Sept. 21-26, 28-30 

Sept. 23 ...... -. 

2.15

1.95

1.85

1.80

2.10

2.15

1.90

1.56

1.40

1.32

1.23

1.56

1.73

1 40

1.22

1.09

1.04

.91

1.3

1.3

1.17

.06

.11

.12

.13

2

6

ns

3.92

3.54

3.49

3.33

4 05

4.23

3.57

0.21

.18

18

.19

.18

.17

.20

0.85

.71

.54

.45

.71

.79

.65

.03

San Simon Creek at mouth, near Solomonsville, Ariz

Sept. 16, 1943 J 3.59 -1.32 6.93 3

fl<> 1.56 6.26 
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in equivalents per million Conti

Ash Creek at mouth, near Pima, Ariz.

Date of collection

June 24, 1945........ _ ...

Sept. 16......... _ .......

Discharge 

(secondfeet)

'

Specific 

conductance 

(KX10« 

at 

26° C.)

Silica 

(SiOs)

Iron 

(Fe)

Calcium 

(Ca)

4.24

Magnesium 

(Mg)

2.71

Sodium

(Na)

Potassium 

(K)

22.44

Bicarbonate 

(HCOs)

9.75

Sulfate 

(S04)

4.60

Chloride 

(Cl)

16.50

14.52

Flu

rid

(F

Cottonwood Wash at Pima, Ariz.

Sept. 26, 29-30, 1943.. ...... 2

OA 

.ou .0.99 1.87 3.03 0.90 1.16 0.0

Matthews Wash near Glenbar, Ariz.

Aug. 7, 1943 _ . __ .. __

Sept. 26- _ ............ . 

1.40 

.60

.90

.77

5.30 

6.01

3.92 

3.51

1.75 

1.42

1.86 

2.45

.0

Markham Wash at Eden, Ariz.

Sept. 26, 1943.............. 1.30 1.15 1.52 0.29 0.00

Black Rock Wash at Fort Thomas, Ariz.

Sept. 28, 1943.............. 1.40 1.23 2.86 3.47 .69 1.33 ....

Tidwell Canal at Solomonsville, Ariz.

Sept. 15,1943...... __ ...» 5.75
San Jose Canal below first wasteway near Solomonaville

Sept. 15, 1943..... ._...__ 6.36

Graham Canal near Thatcher, Ariz.

July 5, 8, 10, 15, 19, 23, 26, 29 

Aug. 2, 5,9, 11, 16, 19, 23, 26,30 

Sept. 2. 6, 13, 17, 20, 23.....

Sept. 16........ ...........

Sept. 27 ... . ...

Sept. 30._.._. ..........

4.49

4.69

1.89

2.80

9.21

12.39

4.57

4.36

1.36

2.96

4.37

8.04 

5.87

11.00 

6.26

.14

1.78

0

Smithville Canal near Thatcher, Ariz.

July 12, 15, 19, 23, 26, 29 

Aug. 2, 5, 19,26 .........

Sept. 2, 9, 23.. ............

Sept. 16 .. ..... _ ...

Sept. 27

3.29

3.09

1.07

1.64

7.52

6.41

4.43

4.18

1.94

1.46

5.36 

4.63

5.36 

7.90

.25

Smithville Canal Wasteway near Thatcher, Ariz.

July 15, 22, 26, 29, 1943.....

Aug. 2, 5, 9, 11, 16, 19, 26, 30. 

Sept. 2..... . __ ...

Sept, 9, 13,20.............

Sept. 16-... _ - _ ....

2.89

3.29 

3.04

1.23

2.38 

1.81

6.39

15.29 

11.43

4.11

5.15 

4.36

1.56

3.87 

2.73

4.65 

5.08

3.22

11.70 

9.17

Union Canal near Thatcher, Ariz.

July 5, 8, 12, 15, 19,23,29..

Aug.2,5,9, 11, 16, 19,23,26,30 

Sept. 2.. . _ ..

Sept. 6, 9, 13, 17, 23........

Sept. 27 30 .. ._-

3.59

2.89 

1.90

1.66

1.73 

.90

9.22

14.66 

1.82

4.23

5.25 

2.70

2.58

3.71 

.69

7.47 

6.04

3.36

10.01 

1.18
MISCELLANEOUS STREAMS IN COLORADO RIVER BASIN 

Chemical analyses, in equivalents per million Conti

Union Canal Diversion along Ray Lane near Thatcher, Ar

Date of collection

July 9-10, 12, 23, 1943......

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

Sept. 20...................

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

Discharge 

(secondfeet)

Specific 

conductance 

(KX105 

at 

25° C.)

Silica 

(Si02)

Iron

(Fe)

Calcium 

(Ca)

2.35

3.89

Magnesium

(Mg)

1.15

1.97

Sodium

(Na)

Potassium 

(K)

13.03

17.10

Bicarbonate 

(HCOa)

3.88

6.05

Sulfate 

(SCW

3.31

4.52

Chloride 

(CI)

9.17 

3.19

11.99 

1.35

Fluo

ride

(F)

.1

Curtis Canal near Glenbar, Ariz.

July 7-8,"13, 16, 20, 24, 27, 30 

Aug.3,6,10,13,17,20,24,27,31 

Sept. 3, 7... ............

Sept. 10, 14, 21, 24. ...... ..

Sept. 17.. ............... ..

Sept. 27...... .............

-

4.49

2.80 

3.39

2.71

2.22 

4.03

21.00

14.26 

30.48

5.95

5.18 

5.34

6.79

3.50 

10 08

15.37 

3.10

10.44 

22.28 

20.45

.54

.0

.1

Fort Thomas Consolidated Canal near Glenbar, Ariz.

July 7, 9, 13, 16, 20, 23, 27, 

30, 1943...... .......... .

Aug. 6, 11, 13, 17, 20, 24, 31. 

Sept. 3, 7,10, 14, 21, 24. .

Sept. 17

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

4.19

1.80

2.71

3.29

11.25

35.65

6.23

4.61

6.04

7.20

15.79 

5.81

18.76 

21.29

1.02

o.i

Fort Thomas Consolidated Canal at Fort Thomas, Ariz

July 6, 9, 16, 21, 23, 27, 1943 

Aug. 6, 10, 13, 17, 21, 27, 31. 

Sept. 4, 10, 14, 21, 24.......

Sept. 17.......... .........

*

3.74

2.70

1.97

2.80

17.65

28.12

5.06

4.90

4.64

6.35

1

13.54 

6.88

19.18 

24.82

.1
COLORADO RIVER BASIN 157

g

cc

I-*

O

S

2

§

w

u

**

§

a

e<

S

CO

S

cc 

a>

S

u

fm

cc

§ 

1

8

u

c

a

CC

o

rTH

us

cc

^1

CC

cc 

 *

ea B

c

IN

CO 

O 

C]

3

S

a

CO

1

tf

« e*

1

«

O «H

e J5

s

rTH

i

j

*~

B

s

CO

CO 

1O

U9

o>

S

CO

to

105

&

S

S

c

«

1

 r.

CO

CO

CO 

IM

i

c

CO

o

4

pl Cip low
158 QUALITY OF SURFACE WATERS, 1943

SUMMARY OF ANALYSES OF STREAMS IN

COLORADO RIVER, PECOS RIVER, AND

RIO GRANDE BASINS, 1925 TO 1943

The Geological Survey has made regular series of chemical analyses 

of water samples collected from different parts of the Colorado River 

Basin continuously from 1925 to 1943. Some .stations were operated 

for only a few years; others were operated for almost the entire period. 

In the Pecos River Basin comprehensive series of analyses w-^re made 

for several streams from 1937 to- 1943, and in the Rio Grande Basin 

for one or two stations from 1937 to 1943.

In order that the most commonly needed information obtained 

from these analyses may be made readily available, several tables of 

analyses are given in summarized form on the following pages, They 

include tables of weighted-average analyses and tables that give the 

maximum and minimum of dissolved solids and total hardness for 

annual periods.

In addition to the summarized analytical data are tables of references to published records of regular series of analyses collated by 

the Geological Survey for streams in the three basins. IncMded also 

is a table of references to suspended-sediment records obtrined for 

streams in the Colorado River Basin from 1925 to 1943.
COLORADO RIVER BASIN

Weighted-average analyses, water years 1926 to 

[Parts per million] 

Colorado River near Glenwood Springs Colo.

Year 

ended 

September 30

1942.............

1943.............

Mean 

discharge 

(secondfeet)

2,688 

2,455

Specific 

conductance 

(KX105 

at 

25° C.)

38.8 

41.5

Silica 

(Si02)

11 

11

Iron 

(Fe)

0.09 

.06

Calcium 

(Ca)

39 

40

Magnesium 

(Mg)

8.1 

9.0

Sodium 

(Na)

28 

33

Potassium 

-CK)

2.0 

2.2

Bicarbonate 

(HCOs)

98 

99

Sulfate 

(S04)

56 

63

Chloride 

(01)

38 

43

Fluo

ride 

(F)

0.3 

.2

Colorado River near Cameo, Colo.

1934

1935 

1936 

1937... .

1938 

1939 -

1940 

1941 . 

1Q19

1943 

2,568

3,952

5,010

3,505

5,610

3,736

2,753

4,089

4,986

3,985

12

12

0.11

.11

61

48

16

11

98

65

3.6

3.0

138

122

120

78

134

74 0.2

Colorado River near Cisco, Utah

1Q9Q

1930 

1931

1932 _______

1933 

1034

1936

1936 

1937. 

1938 ......

11,800

8,420

3,960

9,210

. 3,40i)

3,066

6,466

7,942

6,383

10.260

16

14

13

13

12

14

14

0.25

.14

.07

.09

.11

.07

.10

66

73

102

69

15

105

75

25

28

43

25

29

48

28

62

80

147

72

86

154

81

5.3

4.4

4.4

3.5

3.8

5.4

3.8

142

156

182-

152

144

172

148

216

254

426

228

273

474

256

39

65

107

48

59

109

60

-

02
Weighted-average analyses, water years 1926 to 1948 C

[Parts per million] 

Colorado River Near Cisco, Utah Continued

Year 

ended 

September 30

1B39... ........ ..

1940.. ........

1941.. 

1942.. -

Mean 

discharge 

(secondfeet)

5,873 

4,771

9,084 

10,640

Specific' 

conductance 

(KX10* 

at 

25° C.)

Silica 

(Si08)

Iron

(Fe)

Calcium 

(Ca)

Magnesium

(Mg)

Sodium

(Na)

Potassium 

(K)

Bicarbonate 

(HCOa)

Sulfate 

(804)

Chloride 

(CD

Fluoride 

(F)

Colorado River at Lees Ferry, Am.

1929.... ....... ..

1930.. 

19431... 

26,500

18,000

15,530 77.7

17

15

17

0.36

.17

.06

72

76

64

23

25

25

62

74

7

6.5

4.3

1

160

167

150

222

247

217

35

44

46 0.3

Colorado River at Bright Angel Creek, near Grand Canyon

1926 ........

1927.. ...... ..

1928

1929 ........

1930 . ....

1931 .. 

1B32 __._. _..

1933... ....

»34....... 

»35 ........

1836.............

1937.............

«33 ........

1939.............

1940........ .,

1941.............

1942.............

19,900

23,800

21,500

26,800

18,500

9,280

22,000

13,800

6,431

14,110

16,970

17,140

21,5*3

13,290

10,240

23,400

23,840

85. 

70 Q

19

17

17

18

16

13

13.

13

15

14

16

12

14

17

15

15

13

0.31

.24

.15

.23

.11

.08

.13

.10

.12

.07

.18

.17

.06

.13

.02

.09

07

66

77

66

74

81

93

73

82

105

74

83

83

76

85

92

79

69

21

22

22

23

26

34

21

26

39

22

23

25

22

28

31

22

23

75

77

65

73

85

131

74

03

159

81

79

85

73

96

115

76

69

5.7

5.5

4.3

6.2

5.0

4.7

4.1

4.9

6.1

3.9

6.0

' 6.1

4.6

5.3

. 4.6

5.1

5.3

159

162

162

164

184

201

176

181

206

177 186'

193

189

198

200

193

160

201

235

187

229

252

325

202

249

392

204

228

238

199

254

296

214

212

56

53

48

48

62

107

54

74

136

69

61

64

53

77

95

53

50

0.3

.3

.4

.4

.3

.4
Colorado River below Boulder Dam, Ariz.-Nev.

1940..... . .......

1941 

1942.............

1943 . 

10,600

16,200

24,960

17,260

114

114

108

101

13

11

12

13

0.06

.05

.05

.04

110

110

103

95

28

28

27

26

98

98

{

£

5.2

6.4

8

0

159

153

156

158

348

355

329

303

77

79

72

64

0.

.

.

.

Colorado River near Willow Beach, Ariz.

1935 

1936.............

1937.............

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

1939.... .........

7,674

8,653

8,048

8,519

11,700

13

13

9.7

11

13

0.06

.09

.08

.04

.05

82

78

102

103

102

29

24

25

25

26

108

85

93

90

93

5.8

5.7

54

5.7

6.1

169

152

157

153

158

268

242

314

314

321

101

72

74

69

72

0.3

.3

Colorado River near Topock, Ariz. 

1926.............

1927... ........ ..

1934 

19,700 

23,500

6,727

16 

19 

15

0.25 

.24 

.08

72 

83 

110

22 

23 

40

S 

82 

155

1 

5.9

617

165 

172 

204

214 

249 

402

59

58 

137 0 3

Colorado River at Yuma, Ariz.

1927 

1928 

19432. ..

22,100

19,100

9,265 105

19

14

14

0.21

.24

.04

79

68

96

24

22

26

89

72

i

5.4

4.0

)6

169

163

158

238

195

312

73

55

72 6.3

Gunnison River near Grand Junction, Colo.

1932.............

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

1934.... ....

1935 .. 

1936.............

1937 . 

1938 

1*5« 

1940 .......

1941 

1942.............

1943 

No

records 

available 

do.

do.

1,916

2,415

2,066

3,389

1,938

1,450

3,170

4,000

2,432

17 0.04 90 32 67 39 154 341 11 0.3 

See footnotes at end of table.
Weighted-average analyses, water years 1926 to 1943 

[Parts per million]

Green River at Green River, Utah

Year 

ended 

September 30

1929__._..._._...

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

1931..__________.

1932.............

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

1934.___..__,__-._

1935......... _ .

1936.............

1937.... ........

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

1939.............

1940.............

1941.............

1942.............

1943.............

Mean 

discharge 

(secondfeet)

8,930

6,290

3,300

6,64(5

4,870

1,805

3,936 

5,713

5,709

6,557

4,724

3,273

5,860

6,893

5,900

Specific 

conductance 

(KX106 

at 

25° C.)

Silica 

(SiO.)

16 

14 

11 

11 

12

12 

13

Iron

(Fe)

0.24 

.13 

.09 

.11 

.10

.08 

.06

Calcium 

(Ca)

55 

59 

62 

55 

55

63 

54

Magnesium 

(Mg)

21 

23 

25 

19 

21

29 

19

Sodium 

(Na)

49 

56 

70 

47 

54

86 

45

Potassium 

(K)

4.8 

3.8 

3.0 

3.3 

2.7

4.9

3.6

Bicarbonate 

(HCOs)

169 

179 

185 

177 

172

193 

169

Sulfate 

(804)

154 

177 

199 

134 

156

234 

129

Chloride 

(CD

22 

26 

35 

21 

25

44 

24

Fluoride 

(F)

0.3

San Juan River at Ship Rock, N. Mex.

1942.............

1»43______. ______

3,855

1,823

44.0

49.0

14

12 0.04

53

53

11

12

25 2.5

38

136

118

105

142

6.8

11

0.3

.3

San Juan River near Bluff, Utah

M39.... .........

1931.............

19S2_.__,,...__._

1933... .......

1934.............

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

1936____.........

o Qon

1,230

4 (isn

1,710

914

3,016

2.246

15

13

13

13

15

15

16

0

1A

.09

.12

.11

.14

.05

.15

it.

85

64

77

96

60

74

17

20

13

18

22

11

16

50

68

41

58

81

38

46

3 15

3.4

3.4

3.9

4.5

3.4

5.1

tlQ

163

144

147

167

140

161

"U4

274

167

240

332

145

196

11

15

8.6

13

18

8.4

10

0.4

.3
1937.............

1638.............

193S........- _

1940. .........

1941.............

1942.............

1943.............

3,227

3,407

1,712

1,372

5,859 

4,252 

1,996

60.3 

59.7 

69.8

18 

15 

16

16 

15 

'14 

13

.12 

.05 

.05

.18 

.07 

.06 

.12

69 

65

73

82 

68 

66 

78

15

14 

16

18 

14 

16 

20

44 

43 

46

64 

41 

39

5

4.1 

3.8 

4.7

4.5 

4.8 

3.9 

1

160 

149 

161

160 

160 

157 

167

181 

170 

195

258 

154 

168 

214

9.3

8.5 

12

15 

8.8 

9.4 

15

.3

.5 

.4 

.3 

.3

Animas River at Farmington, N. Mex.

1941.............

1842.............

1943T ............

1,699 

1,301 

736

36.7 

39.1 

42.9

8.4 

8.0 

8.0

0.06 

.12 

.04

50 

55 

57

7.7 

9.6 

9.9

14

13 (

2.6 

3.0 

1

120 

126 

118

76 

86 

111

6.2

7.7 

11

0.4 

.3 

.3

GUa River at Safford, Ariz.

1941.............

1842.. __ ......

1943.............

1,117 

358 

123

39.1 

62.8 

72.1

37 

36

0.27 

.15 

.12

35 

49 

45

9.5 

12 

11

36 

69 

95

137 

194 

194

35

47 

62

39

78 

96

0.8 

1.2 

1.3

Williams River at Planet Ariz.

34 0.11 44 13 63 6.7 245 42 43 1.1 

i For 11 months. 

Incomplete analytical records, Oct. 1,1942, to Jan. 31,1943. (See table on page 129.)

* Average of 11 analyse

Jan. 12, Feb. 8, Mar. 4, May 
164 QUALITY OF SURFACE WATERS, 1943

Maximum and minimum dissolved solids and total hardness, water years 1926 to 1943 

Colorado River near Glenwood Springs, Colo.

Year 

ended 

September 30

1942.... 

1943 

- Dissolved solids

Maximum

Parts 

per 

million

584 

661

Sampling 

period

Jan. 1-10......

Jan. 11-20 ..

Minimum

Parts 

per 

million

105 

119

Sampling 

period

June 1-10. 

June 21-30.

Total hardness, as CaCOa

Maximum

Parts 

per 

million

285 

292

Sampling 

period

Sept. 11-20.... 

Dec. 1-10.....

Minimum

Parts 

per 

million

72

78

Sampling 

period

June 1-20. 

June 21-30.

Colorado River near Cameo, Colo.

1934 

1935 

1936 

1937 .

1938 

1939 

1940 

1941....

1942....

1943 .

950 

996

976

1,010

908

872 

1,050

974

1,040

990

Jan. 11-20..... 

Dec. 1-10-....

Dec. 21-31....

Jan. 21-31.....

Jan. 1-10 

Aug. 21-31.... 

Deq. 21-31....

Jan. 1-10 

Jan. 1-10......

Nov. 1-10 

178 

143

153

210

186

175 

191

183

168

152

May 11-20. 

June 11-20.

May 21-31.

May 21-31.

June 1-10. 

June 1-10.

June 21-30.

June 11-20.

399

374

July 21-31 

Dec. 1-10.- 

101

98

May 21-31.

Colorado River near Cisco, Utah

1929 

1930 

1931 . 

1932 

1933....

1934 

1935 

1936 

1937....

1938 

1939 

1940 

1942 1

1943 

1,540

1,490 

2,390 

1,820 

1,940

2,500 

2,110 

1,540

1,900

1,670

2,350

2,670

1,830 

1,980

1,830

Oct. 1-10 

Sept. 21-30 

Sept. 1-10 . 

Sept. 21-30 

'Sept. 1-10 

Sept. 1-10 

Nov. 1-10 

Dec. 21-31. ...

Aug. 21-31 

Oct. 1-10 

Aug. 21-31. 

Aug. 11-20. 

Sept. 1-10 

Sept. 1-10 

Oct. 11-20 

219

254 

330 

242 

205

* 325 

202 

224

279

236

291

324

279 

264

270

June 11-20. 

June 1-10. 

May 21-31. 

June 11-20.

May 11-20. 

June 11-20. , May 21-31.

May 11-20.

June 1-10.

May 21-31.

May 11-20.

May 11-20. 

June 1-10.

June 11-20.

710

674 

1,020 

832

876

1,090 

915

Oct. 11-20 

Sept. 21-30 

Sept. 11-20 

Sept. 21-30.-.. 

Sept. 1-10 

Sept. 1-10 

Nov. 1-10 

140

152 

182 

150 

132

175 

138

June 11-20. 

June 1-10. 

June 11-20. 

June 11-20.

May 11-20. 

June 11-20.

Colorado River at Lees Ferry, Ariz.

1929 

1930 

1943 

1,410

1,120

1,230

Oct. 11-20.. ...

Jan. 21-31 

Nov. 1-10 

209

256

267

June 11-20.

June 11-20.

May 1-10.

720

538

553

Oct. 11-20 

Aug. 11-20. 

Nov. 1-10 ..

137

, 152

158

June 11-20.

June 11-20.

May 1-10, 

June 11-30,

July 1-10.

Colorado River at Bright Angel Creek, near-Grand Canyon, Ariz.

1926 

1927....

1928 

1929 

1930....

1931... .

1932... .

1933....

1934 

1935 

1936 

1937 

1938 

1939 

1940 

1941....

1942 

1,250

1,450

1,180

1,520

1,180

1,590

1,300

1,500

1,890

1,600

1,330

1,380

1,300

1,440

1,720

1,110

1,350

Sept. 24-30 __

Jan. 1-10......

Sept. 21-30....

Oct. 11-20.....

Jan. 1-10 

Sept. 11-20....

Dec. 21-31....

Jan. 1-10... ...

Sept. 21-30....

Oct. 1-10......

Jan. 1-10. ..

Sept. 1-10 

Oct. 11-20-....

Sept. 11-20....

Sept. 1-10 __

Nov. 1-10- __

Sept. 21-30....

237

238

233

226

291

362

263

237

437

242

258

267

260

296

334

304

225

June 11-17.

May 21-31.

June 1-10.

June 11-20.

June 11-20.

June 11-20.

May 21-31,

June 21-30.

June 11-20.

May 21-31.

June 21-30.

May 21-31.

May 21-31.

June 11-20.

May 21-31.

June 1-10.

June 1-10.

June 11-20.

580

636

527

750

563

641

579

652

764

670

«66

680

574

722

792

511

574

Oct. 9-15 

Jan. 1-10 

Sept. 1-10 ..

Oct. 11-20.....

Sept. 11-20....

.Sept. 21-30-..

Sept. 1-10 

J«n. 1-10.. _ .

Sept. 21-30....

Oct. 1-10..; 

July 11-20 

Sept. 1-10 .....

Oct. 11-20 

Sept. 11-20....

Sept. 1-10 _ ..

Nov. 1-10 

Sept. 21-30...,

127

144

145

140

170

194

157

,151

222

148

162

172

168

174

200

188

130

June 11-17.

May 21-81.

June 1-10.

June 11-20.

June 11 -20.

June 11-20.

June 21-30.

June 11-20.

May 11-20.

June 21-30.

June 1-10.

May 21-31.

June 21-30.

May 21-31.

June 1 10.

June 1-10.

June 11-20.
COLOEApO EIVEE BASIN 165

Maximum and minimum dissolved solids and total hardness, water years 1926 to 1943

 Continued

Colorado River below Boulder Dam, Ariz.-Nev.

Year 

ended 

September 30

1940.... 

1941... t 

1942....

1943....

Dissolved solids

Maximum

Parts 

per 

million

78S 

824 

748

704

Sampling 

period

Apr. 1-10-.-..

Mar. 1-10-.. _. 

June 11-20....

Oct. 1-10..-..

Minimum

Parts 

per 

million

735 

684 

6S3

621

Sampling 

period

Nov. 11-20. 

Sept. 1-10. 

Nov. 11-30.

Dec. 21-31.

Total hardness as CaC03

Maximum

Parts 

per 

million

403

426 

380

376

Sampling 

period

Sept. 1-10 

Jan. 21-31 -. 

Jan. 11-31.....

Oct. 11-20 

Minimum

Partf 

per 

million

37> 33^ 

343

322

Sampling 

period

Oct. 11-31. 

Sept. 21-30. 

Oct. 1-10, Nov. 

21-Dec. 10. 

Dec. 11-31.

Colorado River near Willow Beach, Ariz.

1936.... 

1937....

1938 

1939....

897 

781

742 

756

Feb. 1-10-.--.

May 11-20, 

June 11-30.. 

May 21-31.-. 

July 11-20--.

393

398 

626 

578

Aug. 21-31, 

Sept. 21-30.

Oct. 1-10. 

Dec. 21-31. 

Nov. 11-30.

417 

3,97

384 

382

Feb.1-10 

May 21-31....

June 1-10...-. 

July 21-31 

20' 

211

32o 

303

Aug. 21-31 

Oct. 1-10.

Dec. 21-31. 

Nov. 11-30.

Colorado River near Topocfc, Ariz.

1926.... 

1927 

1934....

1,190 

1,350 

1,740

Sept. 21-30 

Jan. 11-20.... . 

Sept. 1-10 .....

253

279 

421

June 11-20. 

June 1-10. 

May 21-31.

558 

594 

762

Oct. 16-22. . 

Jan. 11-20- 

Sept. 1-10..- -

141 

W 

222

June 11-20. 

June 1-10. 

May 21-31.

Colorado River at Yuma, Ariz:

1927.... 

1«28 

1943....

1,300 

1,180 

729

Jan. 11-20- . 

Sept. 11-20... . 

June 1-10. 

287 

285 

669

June 1-10. 

June 11-20. 

Feb. 1-10.

567 

560 

374 i

Oct. 21-31 

Sept. 11-20 

Oct.1-10. .

166 

163 

324

June 11-20. 

June 11-20. 

Jan. 21-31.

Gunnison River near Grand Junction, Colo.

1932.... 

1933.... 

1934.... 

1935 

1936 

1937... . 

1938-.. 

1939.... 

1940.... 

1941 

1942 

1943....

2,340 

2,700 

2,820 

2,720

2,160

2,980 

2,160 

2,330 

2,610 

1,880

1,980 

2,000

Sept. 11-20 - 

Sept. 1-10. 

Sept. 11-20. 

Oct. 1-20 

July 21-31 

Oct. 1-10...... 

Aug. 21-31 

Aug. 11-20- 

Sept. 1-10- -

Aug. 21-31. 

Oct. 1-10 

243 

233 

438 

250

243

236 

246 

303 

368 

248

246 

220

Mav 11-31. 

June 1-10. 

May 11-20. 

June 11-20.

May 11-20.

May 11-20. 

June 1-10. 

May 1-10. 

May 11-20. 

May 11-20.

June 1-10. 

Apr. 21-30.

1,200 

1,340 

1,370 

1,330

Sept. 11-30. 

Sept. 1-10 

Sept. 1-20 . 

Oct. 1-10, 

21-31 

150

143 241?

160

May 21-31. 

June 1-10. 

May 11-20.

June 11-20.

Green River at Green River, Utah

1929 

1930 

1931 

1932 

1933--..

1934 . 

1935 

1936 . 

1937 

1938. 

876 

835 

1,010 

909

937

905 

803 

939 

952 

1,040

Dec. 21-31- - 

Aug. 1-10-. 

Aug. 1-10. 

Aug. 21-31.. ..

Dec. 21-31-. --

Dec. 21-31 - 

Dec. 11-20 . 

Dec. 21-31. ... 

Dec. 11-20-... 

Sept. 1-10 -

20S 

237 

249 

230

194

245 

205 

226 

295 

265

June 11-20. 

June 1-10. 

June 1-10. 

July 1-10.

June 21-30.

May 21-31. 

June 21-30. 

May 21-31. 

May 21-31. 

June 11-20.

448 

446 

460 

460

488

436 

408

Dec. 21-31.... 

Aug. 1-10. 

Aug. 1-10.. ... 

Aug. 21-31 .. ..

Dec. 21-3i. 

Dec. 21-31. 

Dec. 11-20-.-.

138 

146 

ISO 

1EO

128

135 

HO

June 11-20. 

June 1-10. 

June 11-20. 

June 21- 

July 10. 

June 21-30.

May 21-31. 

July 1-10.
166 QUALITY OF SURFACE WATERS, 1943"

Maximum and minimum dissolved solids and total hardness, water years IB'26 to 1943

 Continued

Green River at Green River, Utah Continued

1939.... 

1940 

1941 

1942 

1943 

883 

1,090 

933 

837 

2,010

Sept. 11-20 

Sept. 21-30 

Aug. 11-20 

Sept. 1 1 -20 

Sept. 29 

286 

226 

298 

260 

272

May 21-31. 

June 21-30. 

June 1-6. 

June 11-20. 

May 1-10.

j

San Juan River at Ship Rock, N. Mex.

1942 

1943 

597 

1,480

Sept. 21-30.... 134 

153

June 11-20. 

May 1-10.

314 

535

Jan. 1-10 . 

Aug. 31.. .....

91 

98

June 11-20. 

May 1-10.

San Juan River near Bluff, Utah

1930 

1931 

1932 

1933 

1934 

1935 

1936 

1937 

1938 

1939 

1940....

1941 

1942 

1943 

1,130 

1,340 

790

1,040 

1,860

1,050 

939 

1,070 

929

1,550 

1,340

809 

756 

981

July 11-20 

Sept. 1 101 

Nov. 21-30, 

Sept. 21-30.. 

Dec. 21-31 

July 21-31 

Dec. 1-10. ....

Aug. 1-10 

Sept. 1-10. . ... 

Dec. 11-20, 

Sept. 1-10 

Aug. 21-31 

Aug. 11-20- ..

Feb. 11-19 ... 

Sept. 11-20 

Oct. 11-20 

200 

244

193 

208

277

182 

186 

213

204 

232

233

193

188 

248

June 11-20. 

June 11-20.

June 11-20. 

June 1-10. 

May 11-20.

June 21-30. 

May 21-31. 

May 11-20.

June 1-10. 

May 11-20.

May 11-20.

June 21-30. 

June 11-20. 

May 1-10.

608 

682

413 

556

874

518 

466 

486

490

753

565

383 

431 

506

July 11-20 

Dec. 21-31. ...

Jan. 21-31 

Dec. 21-31 .... 

July 21-31 

Dec. 1-10 ...

Aug. 1-10. 

' Sept. 1-10 

Dec. 11-20- ._

Aug. 21-31-...

Aug. 11-20.-.

Sept. 11-20 

Jan. 1-10 

Dec. 11-20, 

Feb. 11-20...

128 

138

117 

132 

161

109

118 

136

136 

149

146

132 

127

166

June 11-20. 

June 11-20.

June 11-20. 

June 11-20. 

May 11-20.

July 1-10. 

May 21-31. 

May 11-20.

June 11-20. 

May 11-20.

May 11-20, 

June 1-10. 

July 11-20. 

June 21-30.

June 1-10.

Animas River at Farmington, N. Mex.

1941 

1942.... 

1943 

581 

555 

614

Feb. 1-10..... 

Sept. 1-10. 

Dec. 21-31-..

124 

125 

161

July 1-10. 

June 11-20. 

June 21-30.

355 

354 

389

Feb. 1-10.-- 

Jan. 1-10 

Dec. 11-20. ...

90 

102 

114

July 1-10. 

June 11-20. 

June 21-30.

Gila River at Safford, Ariz.

1941 

1942 

1943 

1,190

1 9Qfk

1,110

June 23-25. . ..

May 21-31-..

156

256

258

Mar. 15-20,

May 1-10.

Oct. 1-10.

Mar. 6-10.

322

404

308

July 11-16 

Aug.31 ....

Apr. 11-20 ....

101

117

111

May 1-10.

Sept. 12-20.

Sept. 26-30.
COLORADO RIVER BASIN 167

Publications containing chemical analyses of water from streams in Colorado River Basin 

for the years 1925 to 1943 in reports of the Geological Survey

Station

Do-. 

Do........................ .................... ...

Do... .............................................

Do... ........... . ........ .....

Do..- _ __ _

Colorado River near Cisco, Utah........... _.___.____ ...

Do................ . .

Do............................... . .....

Do............ . .....

Do.................... .. ......

Do............................... .......... . .

Do..- .... ....... .

Do.. 

Do---.... ... j. __

Do... ..

Do...... ...... .......

Colorado River at Bright Angel Creek near Grand Canyon,

Do......... ........... _ .....

Do............ .. . .

Do............-....:.. . ......

Do.... ......................... ........ ..

Do...... .............. .. ....

Do..... .... . . ...... . .

Do...... ................ .........

Do.......... . . ...

Do... _ .............. ..... ... __, . .

Colorado River at Topock, Ariz.' ....

Do................ ............. . .....

Do.. ............

Do............ ... ...

Do... ............ . . ... ...

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

Do.... ................ . . .......

Do...... . . .. __

Do... .............. . .

Do... . ......................... ......

Do................... ... . .....

Do...... ....................... . _ ___._

Do... . ....

Do .....

Do....................

Do.. . . ...

San Juan River at Ship Rock, N. Mex. ____ T __ ........

Do.. _ __ ____ .. __ ....

Do... . . . ...... ., . .

San Juan River near Bluff, Utah. .

Do...... ........... .. ..,... .....

Do... ............

Do . .... .__. _

Do . ...... ...

Do _ ......... ... ...

Do..... ..- .....

Do....-. . ... ... ......

E

Do .... .- ....... ...

Do ....... ................ ...... ......

Period of record

From

Oct. 1941 

Oct. 1942 

Oct. 1933 

Oct. 1935 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Oct. 1940 

Oct. 1928 

Oct. 1929 

Oct. 1930 

Oct. 1935 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Jan. 1926 

Oct. 1926 

Oct. 1928 

Oct. 1929 

Nov. 1942

Aug. 1925 

Oct. 1926 

Oct. 1928 

Oct. 1930 

.Oct. 1940 

Oct. 1941 

Oct. 1942 

Oct. 1939 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Oct. 1934 

Aug. 1925 

Oct. 1926 

Oct. 1933 

Sept. 1926 

Oct. 1926 

Oct. 1942 

Oct. 1934 

Oct. 1935 

Oct. 1940 

Oct: 1941 

Oct. 1942 

Oct. 1928 

Oct. 1929 

Oct. 1930 

Oct. 1935 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Feb. 1941 

Oct. 1941 

Oct. 1942 

Mar. 1926

Feb. 1927 

Oct. 1929 

Oct. 1930 

Oct. 1940 

Oct. 1941 

Oct. 1942 

June 1940 

Oct. 1940 

Oct. 1941 

Oct. 1942

To

Sept. 1942 

Sept. 1943 

Sept. 1935 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1941 

Sept. 1929 

Sept. 1930 

Sept. 1935 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

July 1926 

June 1927 

Sept. 1929 

Sept. 1930 

Sept. 1943

Sept. 1926 

Sept. 1928 

Sept. 1930 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1939 

Sept. 1926 

Sept. 1927 

Sept. 1934

Sept. 1928 

Sept. 1943 

Sept. 1935 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1929 

Sept. 1930 

Sept. 1935 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1941 

Sept. 1942 

Sept. 1943

June 1927 

Sept. 1930 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1940 

Sept. 1941 . 

Sept. 1942 

Sept. 1943

Type of 

analysis 1

A 

A 

A 

C 

C 

C

c 

c

A 

A 

A 

C 

C 

C 

C 

A 

A 

A 

A 

A

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

C 

C 

C 

C 

A 

A 

A 

C 

C 

C 

C 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A

Geol. Survey 

Water-Supply 

Paper No.

'950 

(2) (*)- 

W C2) 

2942 

2950 (2) (3) 

942 (*> 

2 638-D 

C2) 

(2) 

2942 

2950

(«> « 

596-B 

636-A (2) 

638-D 

« (3)

2 596-B 

2 636-A 

2 638-D 

(2) 

2942 

2950 (4) 

(2) 

?942 

2950 (2) (8) 

(2) 

2 596-B 

2 636-A

(2)

596-B

2 636-A \ 

(2) (») 

(2) 

(2) 

2942 

2950 

(2) C) (2) 

2 638-D

(2) 

« 

2942 

2950 

(2) (»)

942 

2950 (2) (») 

6 596-B 

5 636-A 

2 638-D

(2)

2942 

2950 (2) (*) 

942 

2942 

2950 

C2) «

See footnotes at end of table.
168 QUALITY OF SURFACE WATERS, 1943

Publications containing chemical analyses of water from streams in Colorado River Basin 

for the years 1925 to 1943 in reports of the Geological Survey Continued

Station

Do............................. ...............

Williams River at Planet, Aria. ________ _______

Do..................... .. ....... ... .

Do................................................

Do.............................. ...............

Gila River at Fort Thomas, Ariz. _______________

Gila River at Gillespie Dam, Ariz. _____ . ______ ....

Do................................................

Period of record

From

Dec. 1925 

Oct. 1926 

Oct. 1929 

Oct. 1934 

Aug. 1940 

Oct. 1941 

Oct. 1942 

Aug. 1940 

Jan. 1941 

Feb. 1926 

Dec. 1926 

Nov. 1942

To

May 1926 

Apr. 1927 

Sept. 1930 

Sept. 1935 

Sept. 1941 

Sept. 1942 

Sept. 1943 

July 1941 

Sept. 1941 

Apr. 1928 

June 1927 

Sept. 1943

Type of 

analysis J

A 

A 

A 

A 

A 

A 

A 

B 

A 

A 

A 

A.B

Geol. Survey 

Water-Supply 

Paper Ho.

596-B 

636-A 

«638-D 

O 

942 

2950 

P) P) 

942 

942 

» 596-B 

» 636-A

(10)

1 A, Complete analysis; B, partial analysis; C, dissolved solids.

2 Weighted averages, maximum and minimum dissolved solids, and total hardness given in this r,epcrt.

* Analytical data fer composite samples for year ended September 30,1943, given in this report.

* Samples collected only from October 1 to November 15, 1942, and from September 18 to 30, 19 '3; for those 

periods five analyses given in this report.

* Published as San Juan River at Goodridge, Utah.

6 Analyses of single samples collected at irregular intervals.

7 Average of 11 analyses of single samples given in this report.

8 2 analyses.

* 3 analyses.

10 Analyses, given in this report.

Publications containing data on suspended sediment in streams in Colorado River Basin

for the years 1925 to 1943

1 

Station

Do.. ........ ................................................

Do...........................................................

Do.. .. ... ................... .....................

Do... .......................................... ............

Do..........................................................

Do..........................................................

Do.. ........................................................

Do.... ......................................................

Do.t . .......................................... .............

Do ............................................. ..........

Do..........................................................

Do... ... . .. . . ...... ....

. - V .. . .

Period of record

From

May 1929 

Oct. 1941 

Oct. 1942 

Oct. 1929 

Nov. 1942 

Oct. 1925 

Oct. 1928 

Oct. 1941 

Oct. 1942 

Oct. 1934 

Oct. 1925 

Oct. 1928 

May 1929 

Oct. 1941 

Oct. 1942 

Aug. 1928 

July 1929 

Oct. 1941 

Oct. 1942 

July 1931

To

Sept. 1941 

Sept. 1942 

Sept. 1943 

Dec. 1933 

Sept. 1943 

Sept. 1928 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1939 

Sept. 1928 

Mar. 1939 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1928 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1931

Geol. Survey 

Paper No!

P) 

950 

P) 

0) 

P) 

636-B

P) 

950

(»)

636-B 

P) 

P) 

950 

P> 

P) 

P) 

950 oP)

1 Unpublished records in files of the Geological Survey.

2 Sediment data given in present report.

3 Samples collected only from October 1 to November 15, 1942, and from September 18 to 30, 19'3; sediment 

data for those periods given in this report.
PECOS RIVER BASIN

Weighted-average analyses, water years 1938 to 

[Parts per million] 

Pecos River near Anton Chico, N. Mex.

- -Year - 

ended . 

September 30 ,

1941 

Mean

Jio- U1Bcharge 

(secondfeet)

489

Specific 

con- 

--duet- - 

ance 

(KXlOs 

at 

25° C.)

20.3

Silica 

fSiOj)

16

Iron 

(Fe)

0.07

Calcium 

(Ca)

32

Magnesium

(Mg)

3.7

Sodium

(Na)

Potassium 

(K)

5.9

Bicarbonate 

(HC03)

111

Snlfate

(S04)

14

Chloride 

(CD

1.2

Fluoride

. (F)

0.3

Pecos River near Puerto de Luna, N. Mex. 

1940...... ......

1941 

159 

798

196

77.6

18 

17

0.06 

.07

366 

130

52 

16

60

f

3 7 

25

119 

121

993 

295

86 

24

0.4 

Pecos River near Guadalupe, N. Mex. 

1938r 

1939 

1940. 

1841 

1942 

1943. 

148 

190 

246 

710 

568 

311

180 

148 

177 

83.7 

93.7 

153

16 

14 

18 

13 

13 

13

0.06 

.07 

.05 

.06 

.06 

.05

326 

253 

309 

138 

153 

266

47 

38 

46 

18 

21 

39

61

4 

57 

25 

27 

48

4 6 

9 

3.7 

3.2 

4 3 

3.2

102 

111 

109 

99 

108 

102

901 

6SO 

855 

340 

385 

733

79 

58 

72 

25 

27 

59

0.4 

.2 

.4 

.4

Pecos River near Acme, N. Mex,

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

W39 ..-.. --

1940 

1941. .......... ..

1942 . 

1943 

138

201

175

' 964

712

255

241

226

239

180

190

235

13

14

19

16

16

14

0.10

.07

- .06

387

357

391

' 288

274

357

61

59

61

38

45

62

142| 5.1

149

117 | 5.5

90

108

131

111

111

108

102

121

112

1,100

1,010 1,1 ;o

764

757

1,020

199

216

164

. 126

151

197

0.5
PECOS RIVER BASIN Continued

Weighted-average analyses, water years 1988 to 1943 C

(Parts per million] 

Pecos River near Artesia, N. Mex.

1938.. 

1939.... ....... ..

1940 -.-. _..

1941 

1942 ..........

1943..... ....

233 

283 

249 

1,378 

1,071 

365

452 

418 

383 

272 

343 

388

18 

15 

19 

15 

19 

17

005 

.07 

.05 

.06 

.05 

.04

439 

437 

436 

"353 

400 

424

126 

115 

'114 

64 

93 

112

489 

425 

354 

207 

297 

369

8.9 

9.2

7.7 

7.3 

6.8

8.1

140 

133 

128 

,114 

145 

133

1,420 

1,380 

1,360 

1,030 

1,210 

1,340

772 

663 

544 

310 

459 

570

0.7 

.4 

.5 

.6

Carlsbad project main canal at Avalon Dam, near Carlsbad, 

1940............. 174 445 15 0.05 533 127 400 7.5 104 1,690 626 

Pecos River at Carlsbad, N. Mex.

1938 ........

1939 ...

1940 .......

1941. ...,.

1942.............

1943..... ........

118 

89.6 

71.9 

1,364 

974 

243

346 

404 

404 

253 

335 

360

18 

18 

19 

15 

17 

18

0.05 

.06 

.06 

.06

388 

434 

420 

320 

407 

430

111 

135 

143 

65 

94 

115

303 

361 

357 

IS 

2S 

2{

6.2 

7.0 

5.9 

0 

3 

2

139 

167 

144 

105 

138 

144

1,240 

1,400 

1,420 

953 

1,260 

1,360

482 

587 

584 

282 

419 

458

0.7

.8

Pecos River near Malaga, N. Mex.

1938 .........

1339.............

1940 

1941 ..........

1942.............

19*3.............

164 

130 

124 

1,652 

1,098 

326 .

468 

542 

550 

242 

' 370 

438

17 

18 

19 

15 

18 

19

0.06 

.06 

.06 

.06

448 

60!) 

488 

285 

425 

469

146 

175 

179 

64 

105 

141

" 494 

576 

597 

191 

8 

4

11 

13 

13 

7.5 

2 

10

143 

152 

141 

111 

144 

150

1,490 

1,710 

1,690 

856 

1,330 

1.540

801 

044 

976 

291 

504 

649

0.7 

.4
Pecos River at Pierce Canyon Crossing, near Malaga, N. 

1938. 

1940. 

1941 

143

130

1,694

689

720

266

10

13

0.06

04

510

107

290

184

192

68

880

on

239

20

21

9.0

110

log

110

1,760

1,760-

R7Q

1,430

1,530

367

0.7

Pecos River at Red Bluff, N. Mex.

1938 

1939 

1940

1941 

1942... ..........

1943.. ..........

182

148

135

1,655

1,102

327

668

714

734

270

423

516

17

17

18

17

18

18

0.06

.07

.06

.06-

n°.

.03

457

ino

496

297

424

463

160

186

190

68

inn

143

907

Q4.fi

982

2(

J.4.Q

631

21

OA

22

7

11

19

138

131

103

140

131

1,570

1,780

1,770

911

1,360

1,580

1,450

1,510

1,580

' 397

681

osn

0.7

.5

.7

Pecos River at Orla, Tex.

1838 

1939 

1940 

1941 

1942 

1943 

301

256 

152 

1,284 

1,115 

428

508 

646 

786 

315 

375 

515

15 

13 

15 

18 

20 

19

0.06 

.07 

.07 

.OS 

.05 

.08

520 

583 

592 

364 

396 

498

116 

161 

200 

72 

96 

142

557 

773 

1,050 

280 

370 

554

16 

21 

20 

11 

12 

20

110 

109 

121 

121 

129 

114

1,610 

1,890 

2,020 

1,070 

1,230 

1,650

868 

1,240 

1,670 

434 

570 

872

0.7 

1.0

.2 

.5

.7

Pecos River at Pecos, Tex.

1940- _ ........

1941 1-. ......

86.9 

646

839 

320

618 

349

224

71

1,130 

303

121 

103

2,110 

1,040

1,850 

479

Pecos River below Grandfalls, Tex.

1940 

1941 

1942 i 

52.8 

556 

1,535

1,280 

489 

462

21 

20

24

0.05 

.08 

.07

725 

429 

429

308 

112 

111

2,030 

585 

519

25 

14 

14

168 

119 

143

2,670 

1,340 

1,340

3,240 

924 

811

2.0 

Pecos River near Girvin, Tex.

1940 

1941 i... _ 

71.3 

490

1,560 

591

19 0.05 737 392 

135

2,600

8

29 

14

154 

127

3,060 

1,500

4,130 

1,240

2.3 

Pecos River near Sheffield, Tex.

1940*. 

1841 1.... ..... 458

1,240

600

576 

447

306 

138

2,040 

830

145 

135

2,380 

1,480

3,210 

1,300

i For 9 months ended June 30. * For 11 months Nov. 3,193
172 QUALITY OF SURFACE WATERS, 1943

Maximum and minimum dissolved solids and total hardness, water years 1937 to 1943 

Pecos River near Anton Chico, N. Mex.

Year 

ended 

Septem-| 

ber30i

1940 !- 

1941,...

Dissolved solids

Maximum

Parts 

per 

million

185 

176

Sampling 

period

July 21-31..... 

Dec. 1-10- 

Minimum

Parts 

per 

million

110 

96

Sampling 

period

May 11-20. 

June 21-30.

Total hardness as CaCOa

Maximum

Parts 

per 

million

144 

140

Sampling 

period

July 11-20-.... 

. Nov. 11-20, , Dec. 1-10. ..

. Minimum

Parts 

per 

million

81 

72

Sampling 

period

M*y 11-20. 

J me 11-30.

Pecos River at Santa Rosa, N. Mex.

19392 -.

1940 .

1940 «...

1,470

1,820

1,410

Sept. 11-14 

Jan. 11-20- 

Nov. 11-20 

179

282

1,000

Aug. 2.

Aug. 6-10.

Oct. 1-10.

1,040

1,230

1,030

Sept. 1-10 

Jan. 11-20.. ...

Nov. 11-20,

Dec. 21-30...

272

181

735

S»pt. 15-20.

Aug. 6-10.

Oct. 1-10.

Pecos River near Puerto de Luna, N. Mex.

1939 «.__

1940 

1941 

2,370

2,520

2,430

Sept. 1-10 

Feb. 21-29... .

Feb. 11-20 

800

620

287

Sept. 17-20.

Aug. 6-10.

May 11-20.

1,620

1,750

1,720

Sept. 1-10 

Dec. 11-20.. . .

Feb. 11-20....

556

429

200

£'«pt. 17-20.

Aug. 6-10.

May 11-20.

Pecos River near Guadalupe, N. Mex.

1937 5...

1938 

1939 .

1940 .

1941 

1942 

1943 

2,510

2,590

1,430

1,800

2,200

995

1,600

Aug. 21-31. 

Apr. 21-30-.-.

Feb. 20-28 ....

Mar. 9-10 

Mar. 11-20 

Sept. 21-30 

905

531

680

886

457

435

735

Sept. 16-10.

June 17-20.

Oct. 18-20.

Sept. 1-10.

Sept. 21-30.

Oct. 1-8.

Oct. 1-10.

1,580

1,640

943

1,190

1,490

683

1,070

Aug. 21-31....

Apr. 11-30,.. .

Feb. 20-28....

Mar. 9-10.,..-

Mar. 11-20 

Sept. 21-30 .

555

344

469

603

306

294

503

?»pt. 16-20.

June 17-26.

Oct. 18-20

Sept. 1-10.

F«pt. 21-30. .

Oct. 1-8, 12-20.

Oct. 1-10.

Pecos River near Acme, N.'Mex.

1937 «... 

1938 

1939 

1940 

1941 

1942 

1943 

7,230 

22,300 

23,100 

20,000 

15,800 

8,840

6,980

Sept. 1-9 

Aug. 21-24.... 

June 11-20. 

June 11-12 

Feb. 16-20. ... 

June 29. ......

Mar. 21-27 .

1,220 

995 

1,170 

1,250 

806 

954

1,290

July 21-31. 

Sept. 1-10. 

Julv 14-20. 

Sept. 4-10. 

May 24. 

May 21-27.

Nov. 1-10.

2,590 

5,320 

6,110 

5,580 

4,150 

2,240

2,740

Sept. 1-9 

May 23-June 2. 

June 11-20 

June 11-20.... 

Feb. 16-20....

Mar. ( 21-27 

773 

622 

763 

819 

528 

620

759

July 21-31. 

Sept. 1-10. 

July 14-20. 

Sept. 4-10. 

May 24. , June 11-20.

July 4-7

Pecos River near Artesia, N. Mex.

1937 «...

1938 

1939 

1940 

1941 

1942 

1943 

5,320

7,690

6,080

10,800

5,100

5,710

6,820

Aug. 11-20,

Sept. 1-10 

Aug. 21-25....

June 11-20- ...

Sept. 4-5- _ .

Mar. 1-10 

Mar. 11-20 

Aug. 11-18. ...

2,330

681

1,820

901

845

994

976

July 21-31.

Sept. 6.

July 16-20.

May 23-24.

Sept, 22-23.

Aug. 31.

July 1-2.

2,210

2.940

2,530

3,250

2,220

2,480

2,550

Aug. 11-20,

Sept. 1-10 

Aug. 21-25. 

June 11-20 _ .

Sept. 4-5 .

Mar. 1-10 -

Mar. 11-20 

May 1-10,

Aug. 11-18-

1,220

404

966

467

462

538

506

July 21-30.

Sept. 6.

Aug. 16-20.

May 23-24.

Sept. 22-23.

Aug. 31.

July 1-2.

Pecos River at dam site 3, near Carlsbad, N. Mex.

1941 '. 3,660 Apr. 21-30 _ . 1,690 Sept. 23-30. 2,040 Apr..l6-17 _ . 1,020 Sept. 23-30.

See footnotes at end of table.
PECOS RIVER BASIN 173

Maximum and minimum dissolved solids and total hardness, water years J9S7 tb 1943 

Continued 

Carlsbad project main canal near Carlsbad, N. Mex.

Year

SeptemterSO

193fr8...

1940. ...

1941 

1942 

1943....

Dissolved solids

Maximum

Parts 

per 

million

3,990

4,000

3,730

4,070

4,260

Sampling 

period

Apr. 1-10.....

Apr. 21-30....

Oct. 1-10 

Apr. 11-20....

June 11-20. 

Minimum

Parts 

per 

million

3,040

2,370

568

2,370

2,780

Sampling 

period

Sept. 1-10.

June 27-30.

Oct. 16-18.

May 21-51.

Oct. 1-10.

Total hardness as C ^Os

Maximum

Parts 

per 

million

2,050

2,, 020

2,080

1,960

2,230

Sampling 

period

Apr. 11-20,

May 1-10..

Apr. 21-30,

May 21.....

Feb. 21-28-.-.

Apr. 11-20---.

June 11-20. ...

Minimum

Parts 

per 

million

1,610

1,260

324

1,360

1,600

Sampling 

period

Sept. 1-10

June 27-30.

Oct. 16-18.

May 21-31.

Oct. 1-10.

Pecos River at Carlsbad, N. Mex.

1937 «...

1938 

1939 

1940 

1941 

1942....

1943 

3,180

3,270

3,370

3,260

3,590

3,440

3,030

July 21-31.....

Mar. 1-10--..

Nov. 21-30 

Nov. 21-31 .

Mayl.. ...

Dec. 1-10.....

2,300

825

2,530

2,780

360

2,000

2,390

Aug. 21-31.

June 27-30.

June 21-30.

May 21-31.

May 22.

Oct. 1-10.

1,750

1,770

1,800

1,860

1,970

1,730

1,730

July 11-20.. 

Feb. 11-28 .

Nov. 21-50,

Jan. 1-10....

Nov. 13-20 

Ton 0 1ft

Nov. 21-30 

1,230

485

1,360

1,'480

290

1,190

1,290

Aug. 21-31.

June 27-30.

June 21-30.

May 21-31.

May 22.

Oct. 1-10.

June 11-20.

Pecos River near Malaga, N. Mex.

1937 « ..

1938 

1939 

1940 

1941 

1942....

1943 

4,550

4,830

4,520

4,630

4,530

4,010

4,230

Aug. 1-10

Aug. 11-20 

Sept. 1-10 

Aug. 1-10 

Oct. 1-10 

Aug. 21-31 

Aug. 11-20 

2,490

1,010

3,740

' 929

384

1,990

2,820

Aug. 21-31.

June 28-30.

Feb. 1-10.

May 22.

Sept. 21-22.

Oct. 1-10.

Nov. 11-20,

July 1-10.

2,140

2,100

2,170

2,130

2,080

1,960

'2,030

Aug. 1-10

June 11-20,

Aug. 11-20. _

Apr. 21-30. ...

Aug. 1-10 

Oct. 1-10 

Aug. 21-31 . 

Aug. 1-10 

1,210

536

1,840

631

254

1,190

1,480

Aug. 21-31.

June 28-30.

July 11-20,

Aug. 11-20.

May 22.

Sept. 21-22.

Oct. 1-10.

July 1-10.

Pecos River at Pierce Canyon Crossing, near Malaga, N. Mex.

1938 i°-

1939 

*».

1940 

1941 

7,150

6,240

6,260

5,910

Aug. 11-20....

Sept. 1-10 

Aug. 1-10 

Apr. 12-20..-.

1,360

4,270

2,820

280

June 28-30.

Feb. 1-10.

Mav 9-10.

Sept. 21.

2,250

2,230

2,250

2,150

Aug. 21-30 

Sept. 1-10 

Aus. 1-10 

Apr. 12-20 .

631

1,900

1,280

202

June 28-30.

Aug. 11-20,

May 9-10.

Sept. 21.

Pecos River at Red Bluff, N. Mex.

1937 «... 

1938 

1939 

1940, 

1941 

1942 

1943 

8,140 

7,770 

6,450 

6,460

6,320 

6,430 

6,350

July 1-10 

Aug. 11-18 

Sept. 1-10 

Aug. 1-10 . .

Apr. 11-20. ... 

Apr. 21-24. ... 

Aug. 11-20....

3,580 

1,890 

4,400 

842

541 

2,080 

2,950

Aug. 21-31. 

June 28-30. 

Jan. 1-10. 

June 20.

May 23. 

Oct. 1-10. 

Nov. 11-20.

2,310 

2,290 

2,250 

2,240

2,200 

2,080 

2,130

July 1-10...... 

Aug. 21-31.... 

Sept. 1-10.. 

May 1-9, Aug. 

1-10 

Apr. 11-20.... 

Apr. 21-24.. _ T 

Aug. 11-20 

1,260 

791 

1,820

416

302 

1.21C

1.37C

Aug. 21-31. 

June 28-30. 

Aug. 11-20.

May 23. 

Oct. 1-10. 

July 1-10.

Pecos River at Orla, Tex.

1937 «... 

1938 

1939 

1940 

1941 

1942....

1943 

3,870 

4,290 

5,250 

7,000 

7,980 

7,330

4,570

Aug. 21-31....

Sept. 11-20. _ 

Sept. 21-30... . 

Feb. 21-29.... 

Mar. 11-20 

Mar. 1-2 

Sept. 21-30 

2,810 

3,300 

2,300 

2,030 

1,780 

2,450

3,540

July 1-10. 

Oct. 1-10. 

June 21-22. 

Aug. 18-21. 

May 26-31. 

Nov. 1-10.

Dee. 1-10, 

21-31.

1,730 

1,890 

2,300 

2,710 

2,970

2

7QA

2,050

Aug. 21-31. 

July 1-10 .. 

Sept. 21-30 .... 

Feb. 21-29.... 

Mar. 11-20 

Feb. 28... .

Sept. 21-30....

1,420 

1,630 

1,170 

1,040 

930

1 3AA

1,720

July 1-10. 

Oct. 1-10. 

June 21-22. 

July 1-3. 

Oct. 13-15. 

Nov. 1-10.

Oct, 1-10.

See footnotes at end of table.
174 QUALITY OF SURFACE WATERS, 1943

Maximum and minimum dissolved solids and total hardness, water years 1937 to 1943-

Continued x

Pecos River at Pecos, Tex.

Year 

ended 

September 30

1939 a.. 

1940.... 

1941"..

Dissolved solids

Maximum

Parts 

per 

million

5,620 

8,360 

8,560

Sampling 

period

Sept; 21-30.... 

Mar. 11-20 

Apr. 1-4......

Minimum

Parts 

per 

million

4,570 

3,900 

423

Sampling 

period

Apr. 1-10. 

July 1-10. 

May 25.

Total hardness as CaCOs

Maximum

Parts 

million

2,500 

3,270 

3,280

Sampling 

period

Aug. 11-20.... 

Mar. 11-20.... 

Feb. 1-10.....

Minimum

Parts 

per 

million

2,100 

1,600 

273

Sampling 

period

Apr. 1-10. 

July 1-10. 

May 25.

Pecos River below Grandfalls, Tex.

1939 a.. 

1940....

1941....

1942 w__

8,690 

11,200

12,000

9,970

Sept. 1-10 

Mar. 21-31... .

Feb. 1-10.....

Apr. 11-20--..

7,260 

3,010

798

2,340

July 1-10.

May 27.

Oct. 1-10.

3,320 

3,530

3,550

3,320

June 11-20 .... 

Aug. 9.. 

Feb. 1-10. ... .

Apr. 11-20....

2,560 

1,560

430

1,210

July 11-20.

May 27.

Oct. 1-10.

Pecos River near Girvin, Tex.

1940 

1941 w..

13,600 

13,800

Apr. 21-30. .. . 

Apr. 11-20. ...

4,450 

1,060

Aug. 12-15. 

May 29.

4,060 

3,910

Apr. 21-30. . .. 

Apr. 11-20... .

1,920

849

Aug. 12-15. 

May 30.

Pecos River near Sheffield, Tex.

1940 "..

1941 12. .

10,800

12,000

Mar. 21-31....

Apr. 11-14 _ .

3,410

1,590

June 23, 25,

28-29.

June 10.

3,210

3,460

Mar. 21-31....

Apr. 11-14.-..

1,110

855

June 23, 25,

28-29.

June 10.

» Apr. 1 to Sept. 30,1940. 

2 July 22 to Sept. 30, 1939. 

a Oct. 1 to Dec. 30, 1940 

4 July 1 to Sept. 30,1939. 

6 June 26 to Sept. 30, 1937.

6 July 1 to Sept. 30, 1937.

7 Dec. 16, 1940 to Sept. 30, 1941.

8 Feb. 11 to Sept. 30, 1939. 

» May 30 to Sept. 30, 1937. 

» Mar. 3 to Sept. 30,1938. 

" Apr. 1 to Sept. 30,1939. 

12 Oct. 1, 1940 to June 30, 1941. 

18 Oct. 1, 1941 to June 30, 1942. 

i* Nov. 3, 1939 to Sept. 30,1940.

Publications containing chemical analyses oj water Jrom streams in Pecos River Basin 

for the years 1922 to 1943, in reports of the Geological Survey

Station

Do... ......... .........

Do ......

Do..... . ,_____

Do

Do.......... . . 

Do. - . 

Do ..................... . 

Do........ ... . 

Do........ _ .......

Do... 

Do..... -. ... ...

Do.. j 

Do..... . 

Period of record

From

Apr. 1940 

Oct. 1940 

July 1939 

Oct. 1939 

Oct. 1940 

July 1939 

Oct. 1939 

Oct. 1940 

July 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942 

July 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942

To

Sept. 1940 

Sept. 1941 

Sept. 1939 

Sept., 1940 

Dec. 1940 

Sept. 1939 

Sept. 1940 

Sept. 1941 

Sept. 1937 

> Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept 1943

Type of 

analysis l

A 

A 

B 

B 

Bx 

A 

A 

A A ' 

A 

A 

A 

A 

A 

A 

A 

A 

A

Geol. Survey 

Water-Supply 

Paper No.

(s) 

2*942 

<2) 

(s) 

* 942 (3) 

(*)(») 

s>942 

(8) 

(a) TO 2 = 942 

«»950 

W (a) 

P) 
 *«942 

««950 

(*)
PECOS RIVER BASIN 175

Publications containing chemical analyses of water from streams in Pecos River Basin 

for the years 1932 to 1943, in reports of the Geological Survey Continued

Station

Do.......... 

Do................................................

Do.. ...... __...._..___.__. ___._._.

Do...-____ _________________________

Pecos River at McMillan Dam, near Lakewood, N. Mex. .....

Do ...... .... . ...

Do.. ___ -..... .. ... . 

Do........ ................. ........ . .. ... ..

Do................................................

Do........... .....................................

Do... ._ _ __________

Do.. ...................... ........ . . ... ..

Do.. ..............................................

Do 

Pecos River as represented by Refinery Intake Canal, near

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

Do.................... . .

Do......... ...................... ....... ..

Do........................................... ....

Do........................ ..... . ...

Pecos River at Pierce Canyon Crossing, near Malaga, N. Mex. 

Do........................

Do

Pecos River at Red Bluff, N. Mex. _ .. _ ..... _ . ___ .

Do.......... .............. .

Do . . . ..

Do........................ ...

Do......................... . ...... ....... ..

Pecos River at Angeles, Tex. __________________

Pecos River at Orla, Tex. _____ _ ., .

Do

Do........................

Do................................................

Do................. .

Pecos River near Porterville, Tex.. ......

Do............ _

Do...................... .

Pecos River near Grandfalls, Tex. ____ __ . _ _

Pecos River below Grandfalls, Tex. ___ ...

Do..... ......

Do........... ............ .

Do 

Do...................

Pecos River near Girvin, Tex. __ . ____ . . _

Do J ....... ......

Do. <. Do.............. .

Pecos River near Sheffield, Tex. _______________ ..

Do... .................... ....... . ......

Do.................. .....

Black River at Malaga, N. Mex. ______________ ..

Salt Draw near Pecos, Tex. ____ ....

Do . _____ ..

Period of record

From

Julv 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Oct. 1939 

Oct. 1939 

Oct. 1940 

Feb. 1939 

Oct. 1939 

Oct. 1940 

Oct. 1941 

Oct. 1942 

June 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942

Mar. 1938 

Mar. 1938 

July 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Mar. 1938 

Oct. 1938 

Oct. 1940 

July 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942' 

Mar. 1922 

July 1937 

Oct. 1937 

Oct. 1940 

Oct. 1941 

Oct. 1942 

Mar. 1922 

Mar. 1922 

Apr. 1939 

Oct. 1939 

Oct. 1940 

Apr. 1922 

Apr. 1922 

Apr. 1939 

July 1939 

Oct. 1939 

Oct. 1940 

Oct. 1941 

Sept. 1939

Oct. 1939 

Oct. 1940 

Jan. 1941 

Apr. 1922 

Nov. 1939 

Oct. 1940 

Oct. 1939 

Oct. 1939 

Oct. 1939 

June 1940 

Oct. 1940

To

Sept. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1941 

Sept. 1940 

Sept. 1941 

Sept. 1939 

Sept. 1940 

Sept. 1941 

Sept. 194-2 

Sept. 1943 

Sept. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943

Dec. 1940 

Sept. 1939 

Sept. 1937 

Sept. 1940 

.Sept. 1941 

Sept. 1942 

Sept. 1943 

Sept. 1938 

Sept. 1940 

Sept. 1941 

Sept. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Jan. 1925 

Sept. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Jan. 1925 

Jan. 1925 

Sept. 1939 

Sept. 1940 

June 1941 

Jan. 1925 

Jan. 1925 

June 1939 

Sept. 1939 

Sept. 1940 

Sept. 1941 

June 1942

Sept. 1940 

Dec. 1940 

June 1941 

Jan. 1925 

Sept. 1940 

June 1941 

Sept. 1940 

Sept. 1940 

Sept. 1940 

Aug. 1940 

May 1941

Type of 

analysis '

A 

A 

A 

A 

A 

A 

B 

B 

A 

A 

A 

A 

A 

A 

A 

A 

A 

A

B 

B

A 

A 

A 

A 

A 

B 

B 

A 

A 

A 

A 

A 

A 

B 

A 

A 

A A ' 

A 

B 

B 

B 

B 

B 

B 

B 

B 

A 

A 

A 

A 

B 

A 

A 

B 

B 

B 

B 

B 

B 

B 

B 

B

Geol. Survey 

Water-Supply 

Paper No.

(a) 

(a) (*) 

2*942 

2S950 

W (5) 

(5) 

2942 (a) 

(2) 

2942 

2950 (4) 

(a) 

(a) (*) 

2»942 

2 '950 

(4)

(6)

x W> (2) 

(a) (»)

2S942 

2«950 

(4) 

(2) 

(2) (») ' 

JS942

(a) 

(a) (») 

s»942 

*»950 

W 

596-D (a) 

(a) (») 

2SQ42 

*»950 

(4) 

596-D 

596-D (a) 

(a) (») 

23942 

596-D 

596-D (a) 

(a) 

(a) (») 

2«942 

2 »950 

(5) 

(a) (») 

"942 

s'942 

596-D 

(a)(*) 

*J942

(6 > 

(6 > 

(6 > 

(6 > 

942

1 A, complete analysis; B, partial analysis.

8 Maximum and minimum dissolved solids and total hardness given in this report,

a Weighted averages only given in this report.

4 Analytical data for composite samples for year ended September 30,1943, given in this report.

6 Unpublished records in files of Geological Survey.
176 QUALITY OF SURFACE WATERS, 1943

RIO GRANDE BASIN

[Parts per million]

Weighted-average analyses, water years 1941 to 194S 

Rio Grande at San Acacia, N. Mex.

Year ended 

September 30

1940... ........

1941 

1842...........

1843 ........

Year euded 

September 30

1840...... ..

1941...... ..

1942 

1843. _ __.. 

Mean 

discharge 

(secondfeet)

482 

3,354 

3,255 

613

Chloride 

(CD

50 

20 

16 

36

Specific 

conductance (KX106 

at 25° C.)

82.8 

55.1 

43.5 

78.3

Fluoride 

(F)

0.5 

.5

.4

.5

Silica 

(SiOs)

29 

23 

23

28

Nitrate 

(NOa)

0.6

.8 

1.8 

1.8

. Iron 

(Fe)

0.10 

.03 

.05 

.06

Borate 

(BO,)

6.3 

.5

Calcium 

(Ca)

85 

56 

45 

73

Magnesium 

(Mg)

17 

10 

9.1 

16

Sodium 

(Na)

97 

45 

34

78

Dissolved solids

Parts 

per 

million

633 

359 

289 

535

Tons 

per 

acrefoot

0.86 

.49 

.39 

.73

Tons 

per 

day

841 

3,250 

2,540

885

Potassium 

(K)

7.8 

3.8 

3.7 

4.4

Bi^arbotate 

(HOO.)

211 

148 

129 

191

Hardness 

as CaCO

Total

282 

181 

150

248

Noncarbonate

109 

60 

44 

92

Sulfate 

(SOi)

242 

136 

93 

203

Percent 

sodium

42 

35 

32 

40

Maximum and minimum dissolved solids and total hardness, water years 19^7 to 1943 

Rio Grande at San Acacia, N. Mex.

Year 

ended 

ber30

1937 i 

1939 ! 

1940 

1941 

1942 . 

1943 

Dissolved solids

Maximum

Parts 

per 

million

728 

1,230 

1,060

774

1,560 

1,630

Sampling 

period

Aug. 1-10.. 

Aug. 1-10. 

Aug. 21-31.... 

Sept. 21-30. 

Aug. 25. ......

June 29-30....

Minimum

Parts 

per 

million

443 

335 

464 

236

183 

347

Sampling 

period

Sept. 11-20. 

May 1-10. 

Mar. 11-20. 

July 1-10.

June 1-10. 

May 1-10.

Total hardness as CaCO

Maximum

Parts 

per 

million

335 

583 

478 

352

672

6S6

Sampling 

period

Aug. 1-10.. 

Aug. 1-10 

Aug. 21-31 

Sept. 21-30 

June 29-30. ...

M nimum

Parts 

per 

million

222 

164 

212 

134

101 

168

Sampling 

period

Sept. 11-20. 

May 1-10. 

Mar. 11-20. 

June 1-10, 

July 1-10. 

June 11-20. 

May 1-10.

Rio Grande at Bernardo, N. Mex.

1937 » 

1938 « 

533 

648

Nov. 1-10- 

Sept. 1-10 

318 

206

July 1-10. 

June 1-10.

272 

323

Nov. 1-10 _ 

Sept. 1-10 -

169 

120

July 1-10. 

June 1-10.

» July 1 to Dec. 31, 1937. Mar. 1 to Sept. 30, 1939. s Jan. 2 to Nov. 30, 1938.

Publications containing chemical analyses of water from streams in Rio Grande Basin 

_______ for the years 1937 to 1943, in reports of the Geological Survey ______

Station

Rio Grande 

Do....

Do....

DoDo....

Rio Grande

Period of record

From

Feb. 1937 

Mar. 1939 

Oct. 1940 

Ost. 1941 

Oct. 1942 

July 1937

To

Dec. 1937 

Sept. 1940 

Sept. 1941 

Sept. 1942 

Sept. 1943 

Nov. 1938

Type of 

analysis 1

B

A 

A 

A 

A 

A

Geol. Survey 

Water-Supply 

Paper No.

(*> 

(*) 

i>942

3 §50

8

1 A, Complete analysis; B, partial analysis.

2 Unpublished records in files of Geological Survey.

* Weighted averages only given in this report. | '

4 Analytical data for composite samples for year ended September 30, 1943, given in this report.
INDEX 177

Page

Acme, N. Mex., Pecos River near.. _ __ 51-54, 169, 172 

Adamana, Ariz., Puereo Eiver near . _ _ _ - _ - . 128, 144 

All American Canal, near Yuma, Ariz ....129, 130, 146

Anal yt ieal methods. -. .- . _-__ _-----_-- 2

Alamogordo Creek near Fort Sumner, N. Mex.--- ---76, 78

Animas River, at Farmington, N. Mex-_114-116, 163, 166 

near Cedar Hill," N. Mex. .............. 125, 142

Anton Chieo, N. Mex., Pecos River near.__75, 77, 169, 172

Arizona, analyses of water in... 87-89, 92, 94-99, 117-124,

125-141, 142-157, 160-161, 163, 164-165, 166

suspended sediment of water in _ -._....._90-91, 93

Arkansas River, near Boone, Colo.. _ .... _ .....32, 35

nearBuena Vista, Colo.. _ ----.---.--------.32,35

nearCaddoa, Colo. ________ . _____ 34, 37 

near Las Animas, Colo-... _ ...__ .-._32, 35 

nearRockyFord, Colo-.. ----..----.. -.---..32, 35

Arkansas River Basin, miscellaneous streams in. ..32-37 

Artesia, N. Mex., Pecos River near ____ 55-58, 170, 172 

Ash Creek, near Pima, Ariz _____-_-.____ -.137, 156

Ashurst, Ariz., Gila River near __ .- .._-_-..-134, 151 

Atlantic slope basins. ----------- -------- 2-3,5-21

B

Bernardo, N. Mex., Rio Grandeat.. _ _ ._.--.-- 176 

Biscayne Canal in and near Miami, Fla _ __--.-_ 8-10 

Black Point, Ariz., Gila River at - - ____ _ - __ 135, 152 

Black River near Malaga, N. Mex. _. __ -76, 77, 79 

Black Rock Wash at Fort Thomas, Ariz.......-__138, 153

Bluff, Utah, San Juan River near- -.107-113, 162-163,,166 

Boone, Colo., Arkansas River near -.._.__ ---.32, 35

Huerfano River near..-..--. ... _ ... ,.33, 36 

Boulder Dam, Ariz.-Nev., Colorado River below.._. 94-96,

161, 165 

Brazos River, near Graford, Tex. . ---.--...----... 42-44

near South Bend, Tex__ ..................... 38-41

Broward County, Fla., canals in -... _ ...... 5, 6, 7

Buena Vista, Colo., Arkansas River near .......... 32, 35

Bylas, Ariz., Gila River at.... ............ .-135-136, 152

Caddoa, Colo., Arkansas River near__ _ _ _ __ 34, 37

Calva, Ariz., Gila River at.___.--___-_-136, 155 

Cameo, Colo., Colorado River near^__......83,159,164

Camp Verde, Ariz., Verde River near..._...'...128, 145 

Canadian River near Sanchez, N. Mex... _...... 22-24

Carlsbad, N. Mex., Carlsbad project main canal

near.......................71-73,170,173

Pecos River at and near..........59-61,170,172, 173

Carlsbad project main canal near Carlsbad,

N.Mex. .............. ...71-73, 170, 173

Cedar Hill, N. Mex., Animas River near_____125,142 

Central Wash near Pima, Ariz ...._.._...---140, 157

Chevelon Fork near Winslow, Aria___..___-128, 145 

Cisco, Utah, Colorado River near.... .84-86,159-160, 164

Clear Creek near Winslow, Ariz.____. ____128,145

Clifton, Ariz., San Francisco River at.-.__136-137,155

Colorado, analyses of water in ____ __ - - 32-37, 80-83,

100, 125, 142, 159, 161, 164, 165

cooperation by... __........____._ 3

Colorado River, at Lees Ferry, Ariz__...87-91,160,164 

at Yuma, Ariz.-. ........97-99,130,147,161,165

below Boulder Dam, Ariz.-Nev..-.--.94-96,161, 165 

near Cameo, Colo-. ________ _ _ .83,159,164 

near Cisco, Utah....'............84-86, 159-160, 164

near Glenwood Springs, Colo..........80-82,159,164

near Grand Canyon, Ariz______ .-92-93,160,164 

nearTopock, Ariz--______ ____ ...161,165

near Willow Beach, Ariz ........____.....161,165

Colorado River Basin_______________4,80-157 

publications on.----..-.---------------.-.167-168

summary of analyses of water in. 158,159-166 

Colorado Springs, Colo., Fountain Creek near.-,..- 33, 36 

Colvin-Jones Canal near Fort Thomas, Ariz. _141, 157 

Conasauga River at Tilton, Ga.-.-.._----.---..14-16,17

Conchas Reservoir near Conchas Dair, N. Mex.__ 25-28 

Conchas River near Variadero.^N. Mex... ...... 25

Cooperation ...-_.------._-----...---.._--_-- 2-4

Coral Gables, Fla., Tamiami Canal near___..--. 6, 7

Coral Gables Canal in and near Miami, Fla...__. 12-13

Cornville, Ariz., Oak Creek near _... .129,145

Oak Creek near, spring flowing into . ...129,145

Page springs near.-^___ _._...._129,146

waste from fish hatchery near._____.... 129,146

Cottonwood Wash at Pima, Ariz................ 137,156

Crowell, Tex., Pease River near.................. 29-31

Cummings, M., analyses by----.-...------------- 3

Curtis Canal near Glenbar, Ariz -..____--.-.139,154 

Cypress Creek Canal at Pompano, Fla ------------ 5, 6

D

Dade County, Fla., canals in.--.-...__------- 5, 6, 7

Deerfield Beach, Fla., Hillsboro Canal near.---__ 5, 6

Dexter, N. Mex., Hagerman Canal at- __.____ 76, 78

Dodge-Nevada Canal, near Glenbar, Ariz__--..-140,157

near Pima, Ariz---.......-...--.....-----.140,157

Dodge-Nevada wasteway near Pima, Ariz....-_140,157

Downer, T., analyses by .-.-.. .. -. 3, 4

E

Eager, Ariz., Little Colorado River near__---..126,143 

Eagle Creek near Morenci, Ariz......_..-..--.137,155

East Main Canal near San Luis, Ariz...__....130,147

Eden, Ariz., Gila River near.... .............133, 150

MarkhamWashat-. __.__ -137,153 

Edith, Colo., Navajo River at .............. --125, 142

F

Farmington, N. Mex., Animas River at--114-116,163,166

Florida, analyses of water in. -.-....____-_----_-_--A5-13 

cooperation by.-- - -.-- 2

Fort Lauderdalei Fla., North New River Canal

near 5, 7

Fort Snmner, N. Mex., Alamogordo Creek near. _ 76, 78

Fort Thomas, Ariz., Black Rock Wash at 138,153 

Colvin-Jones Canal near .... .141,157 

Fort Thomas Consolidated Canal at.----.--.14e, 156 

Gila River at and near._ -__ ..-134,151

Fort Thomas Consolidated Canal, at Fort Thomas,

 Ariz ........... 140,156

near Glenbar, Ariz....._----.... .----..139,156

Fountain Creek, near Colorado Spring's, Cold .... 33, 36 

near Pueblo, Colo- ... .__............ 33,36
178 INDEX

G

Georgia, analyses of water in.--_.____.____._.____ 14-21

cooperation by....._._____-.____._.--___. 2-3

Geronimo, Ariz., Gila River at and near.---------135,151

Gila River, at and near Fort Thomas, Ariz .-.134,151 

at and near Pima, Ariz__.______133, 149, 150 

at and near Thatcher, Ariz. ________132,149 

at Black Point, Ariz__.,........---..--.-135,152

at Bylas, Ariz.- ........----.-----.--135-136, 152

atCalva, Ariz. ........._.......... ..136,155

at Safford, Ariz. - .117-119,132,149, 163, 166 

near Ashurst, Ariz......._____.___ _.._134,151

near Eden, Ariz..._______.__ ___133,150 

near Geronimo, Ariz..'.....................135,151

near Glenbar, Ariz______________133,150

near Solomousville, Ariz...___131,132,148,149

Girvin, Tex., Pecos River near.._...--....._171,174

Glenbar, Ariz., Curtis Canal near_._.__ 139,154 

Dodge-Nevada Canal near____ ____ _140,157 

Fort Thomas Consolidated Canal near.. __ 139,156 

Gila River near.... ._ -__-....133,150

Matthews Wash near_____________137,156 

Glenwood Springs, Oolo., Colorado River

near . --80-82,159,164

Graford, Tex., Brazos River near.-...--------.... 42-44

Graham Canal near Thatcher, Ariz...______138, 153 

Grand Canyon, Ariz., Colorado River

near _ -92-93,160, 164 

Grand Falls, Ariz., Little Colorado River at _127,144 

GrandfaUs, Tex., Pecos River below..__ ..171,174 

Grand Junction, Colo., Gunnison River near 100,161, 165 

Green River at Green River, Utah.. 101-103, 162, 165-166 

Guadalupe, N. Mex., Pecos River near__48-50,169,172 

Gulf of Mexico basins__. ___ ________3-4, 3i-79 

Gunnison River near Grand Junction, Colo.-.lOO, 161,165

H

Hagerman Canal at Dexter, N, Mex..... .._. 76, 78

Hastings, W. W., analyses by..............______ 3

Hem, J. D., analyses by .___.........._ 3, 4

Hillsboro Canal near Deerfield Beach, Fla-_-.-_... 5,6 

Howard, C. S., analyses by..-..-._____...... 3, 4

Huerfano River near Boone, Colo___...._... 33, 36

Hunt, Ariz., Little Colorado River near..__..127,143, 144 

Zuni River near...__._______.____.128,145

Irelan, B., analyses by.

Kiser, R. T., analyses by.

Lake Mead, Ariz.-Nev---.--.---..---_.--_-.-..120-124 

Lamar, W. L., analyses by.---_--_............... 3

Las Animas, Colo., Arkansas River near.---___..._ 32, 35

Lees Ferry, Ariz., Colorado River at____87-91,160,164

Paria River at ............. ...125, 142

Little Colorado River, at and near St. Johns,

Arii.........................126,127,143

at Grand Falls, Ariz........_........'....127, 144

near Eager, Ariz._______________126,143 

near Hunt, Ariz-..-_ 127, 143, 144

Little Colorado River Continued.

near St. Johns, Ariz., spring inflow int ~> ...... 127, 144

near Springerville, Ariz...... ...._.....126,143

near Woodruff, Ariz______________127,144 

Little River Canal in and near Miami, Fla.____ 10-11 

Love, S. K., analyses by__......--.-........_.. 2

Loving, N. Mex., refinery intake canal nea- _ .. _ .. 74 

Lower Mississippi River Basin,. ...---- ..3, 22-37

Lyraan Reservoir near St. Johns, Ariz_._....-126,143

M

Malaga, N. Mex., Black River near_______76, 77, 79

Pecos River near-.. ...62-64, 75, 77,170, 171,173

Markham Wash at Eden, Ariz.------... --.. .137,153

Matthews Wash near Glenbar, Ariz..____....137,156

Mechanical analyses of suspended sediment....-- .112-113

Miami, Fla., Biscayne Canal in and near ---------- 8-10

Coral Gables Canal in and near... _ 12-13 

Little River Canal in and near............ 10-11

Snake Creek Canal in and near-....... _ 8

Snapper Creek Canal in and near._.__........ 13

Tamiazni Canal in and near _....--_-.5, 7, 11-12

tidal canals in and near -.-..........._... 8-13

Minton, W. L., analyses by-.-------------.----.- 3, 4

Mississippi River Basin__-._..---....--.-.-..3, 22-37

Moenkopi Wash near Tuba, Ariz..............--128,145

Morenci, Ariz., Eagle Creek near................137,155

N

Navajo River at Edith, Colo.._. -.125,142

Nevada, analyses of water in...-.94-96,120-124,161,165

New Mexico, analyses of water in__22-28, 45-67, 71-79,

104-106, 114-116, 125, 142, 162, 163, 166,

169-171,172-173,176

cooperation by... __ 3 

North New River Canal near Fort Lauderdale, Fla.. fi, 7

0

Oak Creek, at Sedona, Ariz.._................129,145

near Cornville, Ariz ____ .._________--.-129,145

spring flowing into_ _.._ 129,145

Orla,-Tex., Peeos River at and near___..68-70,171, 173

Page springs near Cornville, Aria...___ . 129, 146 

Pagosa Springs, Colo., Rio Blaneo near.... 125,142

San Juan River at....._____.._..._125,142

Palm Beach County, Fla., canals in____--.- -5, 6, 7 

Paria River at Lees Ferry, Ariz._--_____--__--_-125,142

Pease River near Crowell, Tex___________. 29-31 

Pecos, Tex., Pecos River at ... 171, J74

Pecos River, at and near Carlsbad,

N. Mex. .........59-61,170, 172, 173

at and near Orla, Tex.._..... .....68-70,171,173

at Pecos, Tex...-..--.. ..... 171,174

at .Red Bluff, N. Mex ........ ..65-67, 171, 173

at Santa Rosa, N. Mex -- -- 75, 77,172 

below GrandfaUs, Tex --.... - .171, 174

near Acme, N. Mex ......__. 51-54, 169, 172

near Anton Chioo, N. Mex ...75, 77, f69,172 

near Artesia, N. Mex................66-58, 170, 172

near Girvin, Tex...______________171,174 

near Guadalupe, N. Mex .48-50,169,172
INDEX 179v

Pecos River Continued.

near Malaga, N. Mex.....62-64, 75, 77,170,171,173 

near Puerto de Luna, N. Mex .._...75, 77, 169,172 

near Sheffield, Tex_.___. ....._-_-171, 174

Pecos River Basin, miscellaneous streams in 75-79 

publications on--..---..-_ ...---.------.174-175

summary of analyses of water in..__ -_.158,169-174

Piedra River near Piedra, Colo______...__125,142

Pima,Ariz., Ash Creek near.-.____...--__137, 156 

Central Wash near_____ _____-.-__140, 157 

Cottonwood Wash at__..._.__...._.137, 156 

Dodge-Nevada Canal near__________140, 157 

Dodge-Nevada wasteway near _.____. - - - .. 140, 157 

Gila River at and near_.-----___._.133, 149,150

Planet, Ariz., Williams River at.-..-.-----_.129, 146,163

Pompano, Fla., Cypress Creek Canal at.---------- 5,6

Poncha Springs, Colo., creek tributary to South

Arkansas River near------- -._- 32, 35

South Arkansas River at_..-.------.-----.- 32,35

Publications, on Colorado River Basin___..---.167-168

on Pecos River Basin....._...__.___174-175

 on Rio Grande Basin___.-_-.-_.__------___ 176

Pueblo, Colo., Fountain Creek near _________ 33, 36 

St. Charles River near___-...__.._.-.-. 33, 36

Puerco River near Adamana, Ariz -.___....128, 144

Puerto de Luna, N. Mex., Pecos River

near-.. ................75, 77,169, 172

R

Red Bluff, N. Mex., Pecos River at - -65-67, 171, 173 

Refinery intake canal near Loving, N. Mex___.-.__ 74 

Rio Blanco near Pagosa Springs, Colo__ _ _ _125,142 

Rio Grande, atBernardo, N. Mex...____..... 176

at San Acacia, N. Mex___________45-47, 176 

Rio Grande Basin, publications on.........-.-.._. 176

summary of analyses of water in__.-....._ 158, 176 

Rito Creek, near Santa Rosa, N. Mex___________ 75, 77

near Santa Rosa, N. Mex., seepage from fish

hatchery into- -.________ 76,78 

Rocky Ford, Colo., Arkansas River near____ _ 32, 35 

Roswell, N. Mex., South Berrendo Creek near_ _ 76, 78 

Rowley, J. H., analyses by______-............_. 3

S

Safford, Ariz., Gila River at ...117-119, 132, 149,163, 166 

St. Charles River near Pueblo, Colo________. 33, 36 

St. Johns, Ariz., Little Colorado River at and

near.... ... ............126,127,143

Little Colorado River near, spring

inflow into.....___...._......127,144

Lyman Reservoir near_______...__126,143 

Samples, collection of...____....______ 1, 4 

San Acacia, N. Mex., Rio Grande at___.__45-47, 176 

Sanchez, N. Mex., Canadian River near----.-.-.-. 22-24 

San Francisco River at Clifton, Ariz. ___136-137,155 

San Jose Canal near Solomonsville, Ariz_ _ _ .138,153 

San Juan River, at Pagosa Springs, Colo... _ _125,142

at Shiprock, N. Mex..._.__...104-106,162,166

near Bluff, Utah_____.....107-113, 162-163,166

San Luis, Ariz., drain at boundary pump-> near__130,147 

East Mam Canal near.._____.__.....130,147

San Simon Creek near Solomonsville, Ariz. _._137,155

Santa Rosa, N. Mex., Pecos River at...__ ..75, 77,172

Rito Creek near.________________ 75,77

seepage from fish hatchery into..-...----. 76, 78

Sedona, Ariz., Oak Creek at...__________129,145

Sheffield, Tex., Pecos River near..________171,174

Shiprock, N. Mex., San Juan River at_104-106, 162,166

Silver Creek near Woodruff, Ariz___._____127, 144

Smithville Canal near Thatcher, Ariz_______138, 153

Smithville Canal wasteway near Thatcher, Ariz-,-139,154

Snake Creek Canal in and near Miami, Fla... _ .. 8

Snapper Creek Canal in and near Miami Fla -.-..- 13

Solomonsville, Ariz., Gila River near.-.. 131, 132, 148, 149

San Jose Canal near... _ .-.._._ 138,153

San Simon Creek near_______...___137, 155

TidweUCanalat... . - 138,153

South Arkansas River, at Poncha Spring^ Colo__ 32, 35 

near Poncha Springs, Colo., creek

tributary to__ - ____________ 32, 35 

South Atlantic slope and eastern Gulf of

Mexico basins__. _______ ..2-3,5-21 

South Bend, Tex., Brazos River near...-._____ 38-41 

South Berrendo Creek near Roswell, N. Mex____ 76, 78 

Springerville, Ariz., Little Colorado River near._126,143 

Suspended sediment, mechanical analyses of......112-113

publications on._.___..___-__-.-_.-_._-. 168 

tables of -- 85-86, 90-«1, 9f, 102-103, 110-113

Tamiami Canal in and near Miami, Fla --...-5, 7, 11-12 

near Coral Gables, Fla......_........__. 6, 7

Temperature of water of Conasauga Riv^r at Tilton,

Ga . .............. 17

Texas, analyses of water in. _4, 29-31, 38-44, 68-70, 171,

173-174

cooperation by_-- _ - - - - _ 3-4 

Thatcher, Ariz., Gila River at and near- - - - _. _. 132, 149

Graham Canal near...______.....__..138,153

Smithville Canal near......___....._..138,153

Smithville Canal wasteway near....._._....-139,154

Union Canal near__ ---....---. -------139, 154

Thomas, M. B., analyses by ....... ........ 2, 3

Tidal canals in and near Miami, Fla... ..-._ 8-13 

Tidwell Canal at Solomonsville, Ariz.........._138,153

Tilton, Ga., Conasauga River at____.____14-16,17 

Topock, Ariz., Colorado River near. -. _161, 165 

Tuba, Ariz., Moenkopi Wash near....... .__-.128, 145

TJ

Union Canal near Thatcher, Ariz....-______139,154

Utah, analyses of water in...-.84,101. 107-109, 159-160,

162-163, 164, 165-166

suspended sediment of water in --85-86, 102-103,

110-113 

V

Variadero, N. Mex., Conchas Rivar near -_.____. 25 

Verde River aear Camp Verde, Ariz.. ..---.-.128,145
180 INDEX

w

Waha, H. B., analyses by..._. ..-.-.__...._ 3, 4

West Palm Beach Canal at West Palm Beach, Fla.. 6, 7 

Westerii Gulf of Mexico basins____ - __ _3-4,38-79 

White, R. L., analyses by.._-._...__..__... 4 

White, W.F., Jr., analyses by........_._.-___..._ 3,4

Williams River at Planet, Ariz.............. 129,146, 163

Willow Beach, Ariz., Colorado River near____161,165

Winslow, Ariz., Chevelon Fork near______-.128,145

Clear Creek near...... ...............-128,145

Witt, P. A., analyses by.....-.-..-..-........"... 3-4

Woodruff, Ariz., Little Colorado River ne^r ....127,144 

Silver Creek near______.______...127,144

Yett, J., analyses by......_--_...-._... ...... 4

Yuma, Ariz., All American Canal near...__129,130,146 

Colorado River at...........97-99, 130, 147, 161, 165

Yuma Main Canal at and near Yuma, Ariz..._.130,147

Znni River at mouth near Hunt, Ariz... 128,145

 fr U. S. GOVERNMENT PRINTING OFFICt: 1945--645860