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USGS
Water Resources of Colorado

ARKANSAS RIVER BASIN

07119500 APISHAPA RIVER NEAR FOWLER, CO

LOCATION.--Lat 38°05'28", long 103°58'52", in SE14NW14 sec.35, T.22 S., R.59 W., Otero Country, Hydrologic Unit 11020007, on left bank on downstream side of bridge on county road HH.5, 3.5 mi southeast of Fowler, and 5.4 mi upstream from mouth.

DRAINAGE AREA.--1,125 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--April 1922 to September 1925, May 1939 to current year. Monthly discharge only for some periods, published in WSP 1311. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07119500

REVISED RECORDS.--WSP 957: 1939, 1941. WSP 1117: Drainage area. WSP 1241: 1923(M). WRD Colo. 1974: 1973(M).

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gages. Elevation of gage is 4,317.05 ft above NGVD of 1929. See WSP 1711 or 1731 for history of changes prior to May 27, 1939. May 27, 1939 to July 30, 1940, at different datum. July 30, 1940 to Sept. 30, 1985, at site on right bank at datum 2.0 ft higher. Sept. 30, 1985 to July 2, 2002, at site on right bank at same datum.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Natural flow of stream affected by erosion-control and livestock-watering reservoirs, diversions for irrigation, ground-water withdrawals, return flows from irrigated areas, and waste-water flows from Oxford Farmers Co. and Rocky Ford Highline canals. Several measurements of specific conductance and water temperature were obtained and are published in the "Supplemental Water-Quality Data For Gaging Stations" section of this report.

Discharge, cubic feet per second 
WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAY
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
1

2.6

4.0

3.2

2.3

2.3

2.2

2.6

2.7

93

105

8.5

10

2

3.3

5.2

2.7

2.3

2.5

2.1

2.7

2.8

55

15

5.8

4.1

3

3.1

4.7

2.8

2.3

3.0

2.1

2.6

3.0

25

4.6

5.3

3.4

4

3.0

3.9

2.8

2.6

2.2

2.1

2.5

2.7

5.8

2.8

5.3

3.2

5

3.2

3.1

2.8

2.4

2.1

2.1

2.4

2.6

5.9

2.7

9.8

3.3

6

2.9

3.2

2.7

2.3

2.3

2.0

2.6

2.8

3.6

2.7

2.8

3.0

7

2.9

3.5

2.7

2.3

2.3

2.1

2.6

2.7

5.1

3.0

2.7

2.9

8

e2.9

2.9

2.6

2.3

2.3

2.1

2.7

2.8

9.0

2.7

2.7

2.7

9

e2.9

2.9

2.6

2.2

2.3

2.1

2.4

2.9

6.2

2.6

254

2.6

10

2.9

3.0

2.6

2.1

2.2

2.2

2.6

2.9

5.9

3.0

57

2.5

11

2.9

2.9

2.5

2.1

2.2

2.1

2.6

3.3

7.3

2.7

19

2.5

12

2.9

2.9

2.4

2.2

2.1

2.1

2.5

3.5

5.5

2.8

6.5

2.6

13

3.3

3.1

2.5

2.3

2.2

2.1

2.8

3.3

6.5

2.9

3.3

2.6

14

3.2

7.8

e2.6

2.3

2.3

2.1

3.1

3.1

6.1

3.1

2.9

2.7

15

3.2

28

e2.6

2.3

2.3

2.3

3.0

3.0

5.5

3.1

2.8

2.6

16

3.5

5.9

e2.5

2.3

2.2

4.7

3.4

3.0

4.2

3.2

2.8

2.6

17

3.5

3.6

2.5

2.3

2.2

2.2

3.1

3.0

4.2

2.9

2.8

2.5

18

3.5

3.3

2.8

2.3

2.3

2.4

3.4

2.9

4.8

2.9

2.8

2.6

19

3.3

3.2

2.6

2.3

2.3

2.6

5.7

2.7

306

2.8

2.9

2.7

20

3.5

3.1

2.5

2.4

2.3

4.2

4.3

2.5

36

3.1

2.9

2.7

21

3.5

3.1

2.5

2.3

2.2

4.5

3.7

2.7

8.9

3.3

2.8

2.8

22

3.5

3.3

2.4

2.3

2.1

2.8

3.3

2.7

3.5

2.9

2.9

2.8

23

3.4

3.1

2.6

2.3

2.2

5.8

3.2

2.8

4.8

3.0

3.1

2.8

24

3.4

3.2

2.5

2.2

2.1

4.4

3.1

168

5.0

2.9

3.4

2.7

25

3.5

3.2

2.4

2.2

2.0

3.5

3.6

266

3.0

2.9

3.5

2.6

26

3.6

3.1

2.3

2.2

2.1

3.0

3.3

133

3.8

3.0

3.6

2.5

27

3.4

3.1

2.3

2.2

2.1

3.7

3.2

30

3.0

3.1

3.8

2.4

28

3.5

3.0

2.4

2.2

2.2

3.2

3.1

8.7

2.5

3.3

3.7

2.4

29

3.4

3.1

2.5

2.2

---

3.3

3.0

5.1

2.3

895

4.0

2.4

30

3.3

3.1

2.4

2.2

---

2.5

2.7

3.9

2.8

91

4.6

2.6

31

3.6

---

2.2

2.7

---

2.6

---

29

---

19

14

---

TOTAL

100.6

131.5

79.5

70.9

62.9

87.2

91.8

710.1

640.2

1,203.0

452.0

89.8

MEAN

3.25

4.38

2.56

2.29

2.25

2.81

3.06

22.9

21.3

38.8

14.6

2.99

MAX

3.6

28

3.2

2.7

3.0

5.8

5.7

266

306

895

254

10

MIN

2.6

2.9

2.2

2.1

2.0

2.0

2.4

2.5

2.3

2.6

2.7

2.4

AC-FT

200

261

158

141

125

173

182

1,410

1,270

2,390

897

178

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1922 - 2003, BY WATER YEAR (WY)
MEAN

15.3

16.2

10.6

6.82

8.93

11.2

21.3

42.4

43.7

51.5

62.1

18.8

MAX

87.2

83.1

54.7

30.4

54.0

59.6

530

576

290

306

628

154

(WY)

(1924)

(1966)

(1966)

(1966)

(1971)

(1924)

(1942)

(1955)

(1948)

(1958)

(1923)

(1940)

MIN

1.06

0.90

1.33

2.29

1.85

1.35

0.94

1.65

1.13

1.53

1.56

1.07

(WY)

(1965)

(1940)

(1955)

(2003)

(1976)

(1955)

(1955)

(1975)

(1954)

(1974)

(1974)

(1956)

SUMMARY STATISTICS
FOR 2002 CALENDAR YEAR
FOR 2003 WATER YEAR
WATER YEARS 1922 - 2003
ANNUAL TOTAL
1,596.0
3,719.5
ANNUAL MEAN
4.37
10.2
25.9
HIGHEST ANNUAL MEAN
105 1942
LOWEST ANNUAL MEAN
4.94 2002
HIGHEST DAILY MEAN
360 Aug 30
895 Jul 29
10,100 May 19, 1955
LOWEST DAILY MEAN
1.7 Aug 17
2.0 Feb 25
0.00 Feb 5, 1951
ANNUAL SEVEN-DAY MINIMUM
1.8 Aug 16
2.1 Mar 2
0.16 Jan 30, 1951
MAXIMUM PEAK FLOW
a3,080 Jul 29
b83,000 Aug 22, 1923
MAXIMUM PEAK STAGE
13.42 Jul 29
c17.70 Jul 31, 1951
ANNUAL RUNOFF (AC-FT)
3,170
7,380
18,790
10 PERCENT EXCEEDS
3.7
5.8
42
50 PERCENT EXCEEDS
2.9
2.9
6.6
90 PERCENT EXCEEDS
2.2
2.2
2.0

e Estimated.
a From rating curve extended above 2,920 ft3/s.
b From slope-area measurement of peak flow at site 2 mi upstream from present site, caused by failure of Apishapa Dam 31 mi upstream.
c Site and datum then in use. Peak stage for flood of Aug 22, 1923, unknown.

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U.S. Geological Survey
Water Resources of Colorado
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Last Modified: April 28, 2004