07120500 ARKANSAS RIVER NEAR ROCKY FORD, CO

ARKANSAS RIVER BASIN

07120500 ARKANSAS RIVER NEAR ROCKY FORD, CO

WATER-QUALITY RECORDS

LOCATION (REVISED).--Lat 38°03'55", long 103°41'08", in SE14NW14 sec.9, T.23 S., R.56 W., Otero County, Hydrologic Unit 11020005, on right bank 250 feet upstream from Hwy 266 bridge, 2.1 mi northeast of city hall in Rocky Ford, and 9.8 mi downstream from Fort Lyon Canal diversion dam.

DRAINAGE AREA.--11,090 mi2, of which 54 mi2 is probably noncontributing.

PERIOD OF RECORD.--January 2002 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07120500

WATER-QUALITY DATA COLLECTED AS PART OF PREFERRED STORAGE OPTIONS PLAN,

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date

Time

Instan-
taneous
dis-
charge,
cfs
(00061)

Dis-
solved
oxygen,
mg/L
(00300)

pH,
water,
unfltrd
field,
std
units
(00400)

Specif.
conduc-
tance,
wat unf
uS/cm
25 degC
(00095)

Temper-
ature,
water,
deg C
(00010)

Calcium
water,
fltrd,
mg/L
(00915)

Magnes-
ium,
water,
fltrd,
mg/L
(00925)

Potas-
sium,
water,
fltrd,
mg/L
(00935)

Sodium,
water,
fltrd,
mg/L
(00930)

ANC,
wat unf
fixed
end pt,
lab,
mg/L as
CaCO3
(90410)

Chlor-
ide,
water,
fltrd,
mg/L
(00940)

Fluor-
ide,
water,
fltrd,
mg/L
(00950)

DEC

18...

1130

18

12.3

8.5

1,850

6.0

197

75.9

4.23

148

E177

43.1

1.15

MAR

11...

1530

47

10.0

8.4

1,900

18.5

182

75.4

4.26

142

160

45.4

1.09

MAY

29...

1115

1,150

6.3

8.3

800

23.5

75.6

24.7

3.77

46.0

188

18.5

0.8

AUG

27...

1125

22

7.2

8.4

1,570

26.5

172

66.0

5.12

117

175

37.5

1.1

WATER-QUALITY DATA COLLECTED AS PART OF PREFERRED STORAGE OPTIONS PLAN,

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date

Sulfate
water,
fltrd,
mg/L
(00945)

DEC

18...

806

MAR

11...

826

MAY

29...

243

AUG

27...

648

E -- Estimated laboratory analysis value.

MISCELLANEOUS FIELD MEASUREMENTS,

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

Date

Time

Instan-
taneous
dis-
charge,
cfs
(00061)

Specif.
conduc-
tance,
wat unf
uS/cm
25 degC
(00095)

Temper-
ature,
water,
deg C
(00010)

Date

Time

Instan-
taneous
dis-
charge,
cfs
(00061)

Specif.
conduc-
tance,
wat unf
uS/cm
25 degC
(00095)

Temper-
ature,
water,
deg C
(00010)

OCT

APR

22...

1330

51

1,760

15.0

29...

1230

320

1,560

20.5

NOV

JUL

07...

1330

129

1,460

11.0

24...

1545

124

1,180

34.0

JAN

SEP

21...

1345

43

1,810

2.0

16...

1430

159

1,010

25.0

FEB

12...

1415

31

1,790

10.0

WATER-QUALITY DATA COLLECTED AS PART OF PREFERRED STORAGE OPTIONS PLAN,

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date	Time	Instan- taneous dis- charge, cfs (00061)	Dis- solved oxygen, mg/L (00300)	pH, water, unfltrd field, std units (00400)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)	Calcium water, fltrd, mg/L (00915)	Magnes- ium, water, fltrd, mg/L (00925)	Potas- sium, water, fltrd, mg/L (00935)	Sodium, water, fltrd, mg/L (00930)	ANC, wat unf fixed end pt, lab, mg/L as CaCO3 (90410)	Chlor- ide, water, fltrd, mg/L (00940)	Fluor- ide, water, fltrd, mg/L (00950)
DEC
18...	1130	18	12.3	8.5	1,850	6.0	197	75.9	4.23	148	E177	43.1	1.15
MAR
11...	1530	47	10.0	8.4	1,900	18.5	182	75.4	4.26	142	160	45.4	1.09
MAY
29...	1115	1,150	6.3	8.3	800	23.5	75.6	24.7	3.77	46.0	188	18.5	0.8
AUG
27...	1125	22	7.2	8.4	1,570	26.5	172	66.0	5.12	117	175	37.5	1.1

WATER-QUALITY DATA COLLECTED AS PART OF PREFERRED STORAGE OPTIONS PLAN,

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
Date	Sulfate water, fltrd, mg/L (00945)
DEC
18...	806
MAR
11...	826
MAY
29...	243
AUG
27...	648
E -- Estimated laboratory analysis value.

U.S. Department of the Interior
U.S. Geological Survey
Water Resources of Colorado
Contact: webmaster_co@usgs.gov
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Last Modified: April 28, 2004

Date	Time	Instan- taneous dis- charge, cfs (00061)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)	Date	Time	Instan- taneous dis- charge, cfs (00061)	Specif. conduc- tance, wat unf uS/cm 25 degC (00095)	Temper- ature, water, deg C (00010)
OCT					APR
22...	1330	51	1,760	15.0	29...	1230	320	1,560	20.5
NOV					JUL
07...	1330	129	1,460	11.0	24...	1545	124	1,180	34.0
JAN					SEP
21...	1345	43	1,810	2.0	16...	1430	159	1,010	25.0
FEB
12...	1415	31	1,790	10.0