10261100 MOJAVE RIVER BELOW MOJAVE RIVER FORKS RESERVOIR, NEAR HESPERIA, CA
LOCATION.-Lat 34°21'17", long 117°14'40", in NE 1/4 NE 1/4 sec.13, T.3 N, R.4 W., San Bernardino County, Hydrologic Unit 18090208, on
left bank 0.8 mi downstream from Mojave River Forks Reservoir, 6.2 mi downstream from Silverwood Lake on West Fork Mojave River,
6.5 mi southeast of Hesperia, and 12.2 mi downstream from Lake Arrowhead on Deep Creek (head of Mojave River).
DRAINAGE AREA.-211 mi2.
PERIOD OF RECORD.-October 1971 to September 1974, October 1980 to September 1997 (discontinued). Prior to 1990, published as "below
Forks Reservoir" and "below Mojave Forks Reservoir."
GAGE.-Water-stage recorder. Elevation of gage is 3,000 ft above sea level, from topographic map. October 1971 to September 1974, water-stage
recorder at site 0.8 mi upstream on reservoir outlet channel at different datum. Prior to December 14, 1995, at datum 5.00 ft higher.
REMARKS.-Records poor. Flow partially regulated by Lake Arrowhead, capacity, 48,000 acre-ft, used principally for recreation; Silverwood
Lake, capacity, 78,000 acre-ft, used for the storage and distribution of imported water and recreation; and Mojave River Forks Reservoir,
capacity 89,700 acre-ft, used for flood control. Silverwood Lake releases all natural inflow to the West Fork Mojave River as soon as possible
after a storm. Sewage effluent from Lake Arrowhead area is released above gage at times. See schematic diagram of Mojave River Basin.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 21,300 ft3/s, Feb. 8, 1993, maximum gage height, 12.61 ft, Jan. 7, 1993; no flow
for many days in some years.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 .00 e1.4 e7.2 38 94 e56 e22 e14 e2.8 .00 .00 .00
2 .00 e1.0 e6.9 38 88 e36 e22 e13 e2.7 .00 .00 .00
3 .00 e.50 e6.7 171 84 e35 e22 e13 e2.6 .00 .00 .00
4 .00 .00 7.0 366 155 e34 e22 e12 e2.5 .00 .00 .00
5 .00 .00 e6.6 187 160 e31 e22 e12 e2.4 .00 e32 .00
6 .00 .00 e6.4 119 199 e30 e22 e11 e2.3 .00 e32 .00
7 .00 .00 e6.4 111 187 e28 e22 e11 e2.2 .00 e32 .00
8 .00 .00 e6.4 91 181 e27 e22 e10 e2.2 .00 e32 .00
9 .00 .00 e12 43 170 e27 e21 e9.6 e2.1 .00 e32 .00
10 .00 .00 350 e41 155 e26 e21 e9.1 e2.0 .00 e32 .00
11 .00 .00 170 e41 127 e26 e21 e8.7 e1.9 .00 e32 .00
12 .00 .00 111 e41 123 e25 e20 e8.3 e1.9 .00 .00 .00
13 .00 .00 50 e47 e82 e25 e19 e7.9 e1.8 .00 .00 .00
14 .00 .00 40 e60 e72 e25 e19 e7.5 e1.8 .00 .00 .00
15 .00 .00 e30 140 e72 e24 e18 e7.1 e1.7 .00 .00 .00
16 .00 .00 e25 155 e68 e24 e17 e6.8 e1.7 .00 .00 .00
17 .00 .00 e21 145 e46 e24 e17 e6.4 e1.6 .00 .00 .00
18 .00 .00 e18 145 e47 e24 e16 e6.0 e1.6 .00 .00 .00
19 .00 .00 e16 115 e45 e23 e16 e5.6 e1.4 .00 .00 .00
20 .00 2.4 e14 101 e43 e23 e15 e5.3 e1.3 .00 .00 .00
21 .00 e2.4 15 77 e41 e23 e15 e4.8 e1.1 .00 .00 .00
22 .00 171 e78 56 e40 e23 e15 e4.6 e1.0 .00 .00 .00
23 .00 127 170 126 e39 e22 e15 e4.3 e.90 .00 .00 .00
24 .00 34 110 231 e36 e22 e15 e4.1 e.60 .00 .00 .00
25 .00 e22 56 192 e34 e22 e15 e3.9 e.00 .00 .00 .00
26 .00 e16 50 2200 e33 e22 e15 e3.7 .00 .00 .00 .00
27 .00 12 97 824 e45 e22 e15 e3.5 .00 .00 .00 .00
28 .00 e10 123 278 e100 e22 e15 e3.3 .00 .00 .00 .00
29 .00 e9.0 119 170 --- e22 e15 e3.2 .00 .00 .00 .00
30 .00 e7.8 92 136 --- e22 e14 e3.0 .00 .00 .00 .00
31 e2.0 --- 56 115 --- e22 --- e2.9 --- .00 .00 ---
TOTAL 2.00 416.50 1876.6 6600 2566 817 545 225.6 44.10 0.00 224.00 0.00
MEAN .065 13.9 60.5 213 91.6 26.4 18.2 7.28 1.47 .000 7.23 .000
MAX 2.0 171 350 2200 199 56 22 14 2.8 .00 32 .00
MIN .00 .00 6.4 38 33 22 14 2.9 .00 .00 .00 .00
AC-FT 4.0 826 3720 13090 5090 1620 1080 447 87 .00 444 .00
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 1997, BY WATER YEAR (WY)
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 7.24 19.4 55.1 237 321 306 138 52.0 16.7 3.62 2.20 1.44
MAX 57.8 73.9 263 2873 2910 2004 544 333 109 17.1 22.7 12.0
(WY) 1984 1983 1972 1993 1993 1983 1983 1983 1993 1983 1983 1993
MIN .000 .000 .000 .000 11.1 15.0 10.6 .20 .000 .000 .000 .000
(WY) 1986 1989 1990 1991 1987 1972 1972 1990 1989 1985 1985 1984
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1972 - 1997
ANNUAL TOTAL 19450.80 13316.80
ANNUAL MEAN 53.1 36.5 95.6
HIGHEST ANNUAL MEAN 592 1993
LOWEST ANNUAL MEAN 7.34 1990
HIGHEST DAILY MEAN 4500 Feb 21 2200 Jan 26 15000 Feb 19 1993
LOWEST DAILY MEAN .00 Jun 11 .00 Oct 1 .00 Jul 4 1981
ANNUAL SEVEN-DAY MINIMUM .00 Jun 11 .00 Oct 1 .00 Jul 4 1981
INSTANTANEOUS PEAK FLOW 4160 Jan 26 21300 Feb 8 1993
INSTANTANEOUS PEAK STAGE 8.55 Jan 26 12.61 Jan 7 1993
ANNUAL RUNOFF (AC-FT) 38580 26410 69240
10 PERCENT EXCEEDS 102 110 151
50 PERCENT EXCEEDS 4.8 6.4 8.0
90 PERCENT EXCEEDS .00 .00 .00
USGS Water Resources of California
USGS Headquarters | Biology
| Geology |
Mapping | Water
Contact:
webmaster@maildcascr.wr.usgs.gov
Last modified: Wed Mar 10 14:06:22 PST 1999