10257600 MISSION CREEK NEAR DESERT HOT SPRINGS, CA
LOCATION.-Lat 34°00'40", long 116°37'38", in NE 1/4 SW 1/4 sec.12, T.2 S., R.3 E., Riverside County,
Hydrologic Unit 18100200, in Mission Creek Indian Reservation, 0.6 mi downstream from West Fork, and 6.8 mi
northwest of Desert Hot Springs.
DRAINAGE AREA.-35.7 mi2.
PERIOD OF RECORD.-October 1967 to current year.
GAGE.-Water-stage recorder, crest-stage gage, and concrete scour limiter since November 1988. Elevation of gage
is 2,400 ft above sea level, from topographic map.
REMARKS.-Records good except for estimated daily discharges, which are poor. Slight regulation of low flow by two
small dams with a combined capacity of about 3 acre-ft, 2 mi upstream from station. See schematic diagram of
Salton Sea Basin.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 1,750 ft3/s, Aug. 17, 1983, gage height, 3.33 ft, on
basis of slope-conveyance study of peak flow; maximum gage height, 6.40 ft, Jan. 25, 1969; maximum gage height
since November 1988, 5.80 ft, from crest-stage gage, Jan. 16, 1993, discharge not determined; no flow for many
days in most years.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 50 ft3/s, or maximum, from
rating curve extended above 36 ft3/s on basis of critical depth computations:
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
July 12 unknown 142 3.08
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 1.4 1.1 1.0 .89 .89 .53 .52 .44 .15 .00 e.00 e.00
2 1.4 1.1 1.0 .90 .87 .52 .53 .38 .20 .00 e.00 e.00
3 1.3 1.1 1.0 .90 .84 .52 .56 .40 .20 .00 e.00 e.00
4 1.3 1.1 1.0 .91 .93 .53 .66 .40 .22 .00 e.00 e.00
5 1.3 1.1 1.1 .91 .94 .54 .53 .35 .19 .00 e.00 e.00
6 1.3 1.1 1.1 .89 .90 .57 .49 .31 .14 .00 e.00 e.00
7 1.3 1.1 1.1 .88 .84 .60 .55 .28 .10 .00 e.00 e.00
8 1.2 1.1 1.1 .87 .79 .61 .54 .29 .09 .00 e.00 e.00
9 1.1 1.1 1.0 .89 .78 .59 .53 .30 .09 .00 e.00 e.00
10 1.1 1.1 1.0 .89 .83 .59 .51 .30 .08 .00 e.00 e.00
11 1.1 1.2 1.0 .84 .87 .60 .56 .28 .05 e.00 e.00 e.00
12 1.1 1.1 1.0 .82 .84 .59 .65 .26 .02 e12 e.00 e.00
13 1.1 1.1 .99 .81 .77 .53 .53 .25 .00 e.35 e.00 e.00
14 1.1 1.0 .98 .81 .75 .51 .41 .26 .00 e.20 e.00 e.00
15 1.2 1.0 .91 .82 .73 .57 .40 .27 .00 e.09 e.00 e.00
16 1.2 1.0 .88 .81 .72 .64 .41 .26 .00 e.00 e.00 e.00
17 1.2 1.0 .90 .80 .68 .59 .39 .23 .00 e.00 e.00 e.00
18 1.2 1.1 .95 .80 .64 .53 .37 .19 .00 e.00 e.00 e.00
19 1.2 .96 .96 .80 .64 .49 .35 .17 .00 e.00 e.00 e.00
20 1.1 .99 .99 .77 .64 .47 .34 .17 .00 e.00 e.00 e.00
21 1.1 .95 1.0 .82 .65 .49 .35 .17 .00 e.00 e.00 e.00
22 1.1 .94 1.1 .91 .66 .47 .37 .20 .00 e.00 e.00 e.15
23 1.0 .92 1.0 .91 .67 .47 .41 .21 .00 e.00 e.00 e.02
24 1.0 .91 .83 .87 .62 .47 .43 .21 .00 e.00 e.00 e.02
25 1.0 .90 .88 .88 .61 .48 .41 .17 .00 e.00 e.00 e.01
26 1.1 .90 .88 .99 .63 .48 .36 .13 .00 e.00 e.00 e.01
27 1.1 .91 .89 .93 .60 .46 .35 .09 .00 e.00 e.00 e.01
28 1.1 1.0 .89 .92 .56 .43 .44 .10 .00 e.00 e.00 e.01
29 1.1 .99 .89 .90 --- .42 .46 .07 .00 e.00 e.00 e.01
30 1.1 1.0 .89 .87 --- .42 .50 .11 .00 e.00 e.00 e.01
31 1.1 --- .89 .86 --- .45 --- .12 --- e.00 e.00 ---
TOTAL 36.0 30.87 30.10 26.87 20.89 16.16 13.91 7.37 1.53 12.64 0.00 0.25
MEAN 1.16 1.03 .97 .87 .75 .52 .46 .24 .051 .41 .000 .008
MAX 1.4 1.2 1.1 .99 .94 .64 .66 .44 .22 12 .00 .15
MIN 1.0 .90 .83 .77 .56 .42 .34 .07 .00 .00 .00 .00
AC-FT 71 61 60 53 41 32 28 15 3.0 25 .00 .5
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1968 - 1999, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN .88 1.11 1.19 3.52 8.70 6.84 5.56 4.53 2.90 1.94 1.49 .97
MAX 3.83 4.54 4.51 29.2 174 49.6 31.6 25.8 16.4 10.1 5.42 4.74
(WY) 1970 1984 1979 1980 1980 1980 1993 1993 1993 1980 1983 1993
MIN .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000
(WY) 1968 1969 1969 1968 1968 1989 1968 1968 1968 1972 1968 1968
SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1968 - 1999
ANNUAL TOTAL 775.32 196.59
ANNUAL MEAN 2.12 .54 3.27
HIGHEST ANNUAL MEAN 28.3 1980
LOWEST ANNUAL MEAN .000 1990
HIGHEST DAILY MEAN 8.7 Feb 24 12 Jul 12 540 Feb 18
1980
LOWEST DAILY MEAN .45 Jan 1 .00 Jun 13 .00 Oct 1
1967
ANNUAL SEVEN-DAY MINIMUM .47 Jan 1 .00 Jun 13 .00 Oct 1
1967
INSTANTANEOUS PEAK FLOW 142 Jul 12 1750 Aug 17
1983
INSTANTANEOUS PEAK STAGE 3.08 Jul 12 6.40 Jan 25
1969
ANNUAL RUNOFF (AC-FT) 1540 390 2370
10 PERCENT EXCEEDS 4.2 1.1 6.2
50 PERCENT EXCEEDS 1.4 .50 .64
90 PERCENT EXCEEDS .76 .00 .00
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