10259000 ANDREAS CREEK NEAR PALM SPRINGS, CA
LOCATION.-Lat 33°45'36", long 116°32'57", in SE 1/4 SE 1/4 sec.3, T.5 S., R.4 E., Riverside County,
Hydrologic Unit 18100200, on left bank, at U.S. Bureau of Indian Affairs Diversion Dam, 1.1 mi upstream from
mouth, and 5.1 mi south of Palm Springs.
DRAINAGE AREA.-8.65 mi2.
PERIOD OF RECORD.-October 1948 to current year.
REVISED RECORDS.-WDR CA-88-1: Drainage area. WDR CA-91-1: 1986(M), 1988(M).
GAGE.-Water-stage recorder and concrete control. Elevation of gage is 800 ft above sea level, from topographic
map. Prior to Mar. 25, 1949, reference point at same site at different datum.
REMARKS.-Records good. No regulation upstream from station. One small diversion for domestic use about 1 mi
upstream from station. See schematic diagram of Salton Sea Basin.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 1,960 ft3/s, Aug. 31, 1954, gage height, 7.11 ft,
from rating curve extended above 80 ft3/s on basis of slope-area measurement of peak flow; no flow at
times in some years.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 50 ft3/s, or maximum, from
rating curve extended above 98 ft3/s by theoretical computations of flow over weir:
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
July 8 1230 6.9 2.60
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1.9 2.2 2.5 2.2 2.1 2.0 1.9 1.9 1.1 .61 .70 .70
2 1.8 2.1 2.5 2.2 2.1 2.0 1.9 1.8 1.2 .60 .77 .76
3 1.8 2.1 2.5 2.2 2.1 2.0 1.9 1.7 1.3 .62 .75 .84
4 1.9 2.1 2.5 2.2 2.4 2.1 2.2 1.8 1.3 .64 .67 .82
5 1.9 2.2 2.4 2.2 2.4 2.1 2.0 1.7 1.3 .60 .67 .73
6 1.9 2.2 2.7 2.2 2.3 2.1 2.0 1.7 1.1 .73 .71 .68
7 1.8 2.2 2.5 2.2 2.2 2.1 2.1 1.6 1.0 1.3 .71 .66
8 1.8 2.8 2.5 2.2 2.2 2.1 1.9 1.6 .98 2.7 .75 .65
9 1.8 2.8 2.4 2.2 2.2 2.1 1.9 1.6 .99 1.3 .76 .75
10 1.8 2.4 2.4 2.2 2.3 2.1 1.9 1.6 .97 .97 .72 .80
11 1.8 2.5 2.4 2.3 2.2 2.1 2.0 1.5 .96 1.0 .74 .75
12 1.8 2.4 2.4 2.3 2.2 2.1 2.2 1.4 .91 1.1 .73 .78
13 1.8 2.3 2.4 2.3 2.2 2.0 2.0 1.4 .85 2.2 .69 .79
14 1.8 2.2 2.4 2.2 2.1 2.0 1.8 1.4 .78 1.7 .66 .69
15 1.9 2.2 2.3 2.2 2.1 2.1 1.7 1.4 .78 1.2 .64 .65
16 1.9 2.2 2.2 2.2 2.1 2.2 1.7 1.4 .78 1.0 .63 .70
17 1.9 2.2 2.1 2.2 2.1 2.1 1.7 1.3 .78 .90 .64 .77
18 1.9 2.3 2.2 2.2 2.1 2.0 1.7 1.2 .76 .90 .64 .82
19 1.9 2.2 2.2 2.2 2.1 2.0 1.7 1.2 .72 .84 .65 .82
20 1.9 2.3 2.2 2.2 2.1 1.9 1.7 1.2 .69 .82 .75 .80
21 2.0 2.3 2.2 2.1 2.1 1.9 1.8 1.2 .70 .81 .73 .87
22 2.0 2.3 2.2 2.0 2.1 1.9 1.8 1.5 .71 .77 .64 1.3
23 2.0 2.4 2.2 2.0 2.1 1.9 1.8 1.5 .73 .76 .73 1.3
24 2.1 2.4 2.2 2.0 2.1 1.9 1.9 1.3 .68 .76 .74 1.1
25 2.1 2.3 2.1 2.0 2.1 1.9 1.9 1.2 .67 .75 .66 .91
26 2.2 2.3 2.2 2.1 2.1 1.8 1.8 1.1 .66 .77 .73 .84
27 2.2 2.3 2.2 2.1 2.1 1.9 1.7 1.0 .65 .74 .76 .80
28 2.2 2.5 2.3 2.1 2.1 1.8 1.8 .98 .65 1.0 .77 .79
29 2.2 2.5 2.3 2.0 --- 1.8 2.1 .91 .68 1.2 .84 .75
30 2.2 2.5 2.3 2.0 --- 1.7 2.0 .95 .64 .89 .79 .76
31 2.2 --- 2.3 2.1 --- 1.8 --- .98 --- .74 .67 ---
TOTAL 60.4 69.7 72.2 66.8 60.4 61.5 56.5 43.02 26.02 30.92 22.04 24.38
MEAN 1.95 2.32 2.33 2.15 2.16 1.98 1.88 1.39 .87 1.00 .71 .81
MAX 2.2 2.8 2.7 2.3 2.4 2.2 2.2 1.9 1.3 2.7 .84 1.3
MIN 1.8 2.1 2.1 2.0 2.1 1.7 1.7 .91 .64 .60 .63 .65
AC-FT 120 138 143 132 120 122 112 85 52 61 44 48
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1949 - 1999, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 1.37 2.19 3.12 4.77 5.75 6.01 4.43 3.08 1.98 1.42 1.39 1.28
MAX 5.60 19.2 30.2 46.5 56.4 33.7 20.0 17.4 12.4 7.51 9.52 6.05
(WY) 1984 1966 1967 1993 1980 1980 1983 1983 1983 1983 1983 1983
MIN .38 .60 .96 .95 1.02 .99 .68 .51 .23 .087 .14 .24
(WY) 1966 1963 1963 1976 1961 1961 1961 1961 1961 1961 1963 1964
SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1949 - 1999
ANNUAL TOTAL 1654.2 593.88
ANNUAL MEAN 4.53 1.63 3.05
HIGHEST ANNUAL MEAN 12.4 1983
LOWEST ANNUAL MEAN .66 1961
HIGHEST DAILY MEAN 42 Feb 14 2.8 Nov 8 395 Dec 6
1966
LOWEST DAILY MEAN 1.7 Sep 5 .60 Jul 2 .00 Jun 27
1961
ANNUAL SEVEN-DAY MINIMUM 1.7 Sep 16 .63 Jun 29 .00 Jul 13
1963
INSTANTANEOUS PEAK FLOW 6.9 Jul 8 1960 Aug 31
1954
INSTANTANEOUS PEAK STAGE 2.60 Jul 8 7.11 Aug 31
1954
ANNUAL RUNOFF (AC-FT) 3280 1180 2210
10 PERCENT EXCEEDS 7.7 2.3 5.5
50 PERCENT EXCEEDS 2.8 1.9 1.7
90 PERCENT EXCEEDS 1.9 .71 .60
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