10260500 DEEP CREEK NEAR HESPERIA, CA
LOCATION.-Lat 34°20'28", long 117°13'39", in NE 1/4 SE 1/4 sec.18, T.3 N., R.3 W., San Bernardino
County, Hydrologic Unit 18090208, on right bank, 0.5 mi upstream from confluence with West Fork Mojave River at
Mojave River Forks Dam, 7 mi southeast of Hesperia, and 11 mi downstream from Lake Arrowhead.
DRAINAGE AREA.-134 mi2.
PERIOD OF RECORD.-October 1904 to September 1922, October 1929 to current year. Prior to January 1930, monthly
discharge only, published in WSP 1314.
REVISED RECORDS.-WSP 1314: 1931(M). WSP 1927: Drainage area.
GAGE.-Water-stage recorder. Broad-crested weir since December 1938. Elevation of gage is 3,050 ft above sea
level, from topographic map. See WSP 1314 for history of changes prior to Dec. 10, 1938.
REMARKS.-Records good except for estimated daily discharges, which are fair. Slight regulation by Lake Arrowhead,
capacity, 48,000 acre-ft, principally used for recreation. Sewage effulent from Lake Arrowhead area is released
above gage at times. See schematic diagram of Mojave River Basin.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 46,600 ft3/s, Mar. 2, 1938, gage height unknown, on
basis of slope-area measurement of peak flow; maximum gage height, 23.81 ft, Feb. 10, 1978 (backwater from Mojave
River Forks Reservoir); no flow, July 17, 18, 1961.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 400 ft3/s, or maximum:
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
Apr. 15 0800 84 2.13
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 8.2 11 16 13 18 13 12 22 5.8 1.7 e.65 e.75
2 8.0 11 15 13 16 13 13 22 6.8 1.7 e.62 e.75
3 7.6 11 14 12 15 13 14 23 11 1.6 e.60 e.74
4 7.0 11 14 12 16 12 14 21 11 e1.4 .58 .74
5 6.9 11 15 12 17 12 15 20 11 e1.4 .54 .74
6 7.0 11 15 12 17 12 16 18 10 e1.4 .58 .76
7 7.3 11 15 12 16 12 23 17 8.5 e1.4 .69 .72
8 7.4 11 14 12 15 12 22 15 7.7 e1.4 .71 .63
9 7.3 12 14 12 16 13 22 15 7.2 1.6 e.85 .66
10 7.3 13 13 12 34 13 22 14 7.2 1.7 e.85 .74
11 7.7 13 13 12 25 12 21 13 7.2 2.3 e.85 .74
12 9.7 14 14 13 19 12 37 12 7.3 2.4 e.84 .74
13 13 14 14 12 17 12 43 11 7.5 3.3 e.84 .82
14 11 13 14 12 17 12 46 11 7.3 3.8 e.83 .84
15 9.1 12 14 12 17 13 68 11 6.9 3.3 e.83 .84
16 8.0 12 14 12 16 15 62 11 6.6 2.7 e.83 .85
17 8.2 12 13 12 16 14 58 11 6.1 2.4 e.82 .90
18 8.3 12 13 12 17 14 55 10 5.7 1.9 e.82 .99
19 8.5 12 13 12 18 15 52 9.7 5.5 1.7 e.81 1.0
20 8.7 12 13 12 17 15 47 9.5 4.4 1.4 e.81 .99
21 8.6 12 13 13 16 15 40 9.3 3.5 1.3 e.80 1.0
22 8.7 12 13 13 15 14 33 9.3 3.4 1.2 e.80 1.3
23 8.6 12 11 13 15 14 28 9.3 3.2 1.0 e.80 1.4
24 8.8 12 12 13 15 13 26 9.1 3.1 .96 e.79 1.5
25 9.0 12 13 14 14 13 25 9.1 2.6 .88 e.79 1.8
26 9.6 12 13 16 14 13 23 8.7 2.2 .76 e.78 1.9
27 10 11 13 18 14 13 21 8.2 2.0 .69 e.78 1.9
28 10 18 13 17 14 12 19 7.8 1.9 .73 e.77 1.8
29 10 32 13 15 --- 12 20 7.3 1.8 e.74 e.77 1.6
30 10 19 13 15 --- 12 20 6.6 1.7 .74 e.76 1.6
31 11 --- 13 16 --- 12 --- 6.1 --- .68 e.76 ---
TOTAL 270.5 391 420 406 476 402 917 387.0 176.1 50.18 23.55 31.74
MEAN 8.73 13.0 13.5 13.1 17.0 13.0 30.6 12.5 5.87 1.62 .76 1.06
MAX 13 32 16 18 34 15 68 23 11 3.8 .85 1.9
MIN 6.9 11 11 12 14 12 12 6.1 1.7 .68 .54 .63
AC-FT 537 776 833 805 944 797 1820 768 349 100 47 63
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1905 - 1999, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 5.27 19.5 56.1 135 214 217 145 65.7 17.8 5.74 3.23 3.61
MAX 42.0 606 843 2062 2028 1539 747 456 80.4 25.9 29.2 54.3
(WY) 1984 1966 1922 1993 1993 1978 1958 1998 1998 1969 1983 1976
MIN .23 1.14 2.53 4.56 6.07 4.87 3.20 2.37 1.14 .14 .13 .10
(WY) 1934 1957 1905 1951 1951 1956 1951 1934 1956 1961 1933 1933
SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1905 - 1999
ANNUAL TOTAL 62800.7 3951.07
ANNUAL MEAN 172 10.8 73.2
HIGHEST ANNUAL MEAN 411 1993
LOWEST ANNUAL MEAN 3.06 1951
HIGHEST DAILY MEAN 5090 Feb 23 68 Apr 15 14700 Jan 25
1969
LOWEST DAILY MEAN 6.6 Aug 29 .54 Aug 5 .00 Jul 17
1961
ANNUAL SEVEN-DAY MINIMUM 7.1 Aug 24 .61 Jul 31 .07 Jul 12
1961
INSTANTANEOUS PEAK FLOW 84 Apr 15 46600 Mar 2
1938
INSTANTANEOUS PEAK STAGE 2.13 Apr 15 23.81 Feb 10
1978
ANNUAL RUNOFF (AC-FT) 124600 7840 53000
10 PERCENT EXCEEDS 347 18 142
50 PERCENT EXCEEDS 19 12 10
90 PERCENT EXCEEDS 8.0 .80 1.0
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