10336775 TROUT CREEK AT PIONEER TRAIL, NEAR SOUTH LAKE TAHOE, CA
LOCATION.--Lat 38°54'13", long 119°58'04", in SE 1/4 NE 1/4 sec.10, T.12 N., R.18 E., El Dorado County,
Hydrologic Unit 16050101, on left bank, 200 ft upstream of Pioneer Trail Road, 0.6 mi upstream of confluence
of Cold Creek, and 2.8 mi south of South Lake Tahoe.
DRAINAGE AREA.--23.7 mi2.
PERIOD OF RECORD.--June 1990 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 6,270 ft above sea level, from topographic map. Prior to
May 1, 1992, at datum 0.12 ft higher.
REMARKS.--Records poor. These data are reviewed and provided by the Nevada District Office, U.S. Geological
Survey. See schematic diagram of Truckee River basin.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 17 13 12 14 26 23 39 85 100 48 20 14
2 17 13 12 13 23 23 40 92 113 46 19 14
3 17 13 11 13 22 23 37 91 126 44 19 14
4 17 13 19 13 44 25 37 88 138 41 19 14
5 17 13 15 13 83 27 38 87 148 39 19 13
6 17 13 13 12 45 26 41 86 147 37 18 13
7 17 13 12 12 31 25 47 82 147 41 18 13
8 17 13 12 12 29 24 53 83 149 38 18 13
9 15 13 11 13 28 25 57 81 142 37 18 13
10 14 13 11 13 27 26 54 84 136 35 18 12
11 14 13 19 12 27 26 50 94 129 34 18 12
12 14 13 54 12 27 25 49 103 127 36 21 12
13 14 13 26 12 27 24 47 111 122 37 24 13
14 14 13 20 13 26 23 49 118 117 34 23 13
15 13 13 17 15 26 23 56 133 109 32 19 14
16 13 13 16 34 28 25 85 211 101 31 18 14
17 13 13 17 26 30 26 63 148 92 30 18 13
18 13 13 17 17 31 29 62 167 88 30 17 12
19 13 13 14 e17 40 32 54 135 85 30 17 12
20 13 12 13 e17 42 35 50 125 81 29 17 12
21 13 12 14 e17 29 38 48 124 78 28 16 11
22 13 12 16 e17 e28 38 47 117 74 27 16 11
23 14 12 15 17 e28 35 54 104 71 27 15 11
24 14 12 14 17 e27 32 64 100 69 26 15 11
25 14 12 14 22 27 31 66 93 76 25 16 11
26 14 14 15 e21 26 31 70 94 78 24 15 10
27 13 12 15 e21 26 32 72 98 66 23 14 10
28 13 12 15 e22 25 37 68 93 58 25 14 10
29 13 12 15 e21 24 33 70 95 54 24 14 10
30 13 12 17 e22 --- 32 79 97 51 22 14 10
31 13 --- 16 28 --- 34 --- 94 --- 21 14 ---
TOTAL 446 381 507 528 902 888 1646 3313 3072 1001 541 365
MEAN 14.4 12.7 16.4 17.0 31.1 28.6 54.9 107 102 32.3 17.5 12.2
MAX 17 14 54 34 83 38 85 211 149 48 24 14
MIN 13 12 11 12 22 23 37 81 51 21 14 10
AC-FT 885 756 1010 1050 1790 1760 3260 6570 6090 1990 1070 724
e Estimated.
10336775 TROUT CREEK AT PIONEER TRAIL, NEAR SOUTH LAKE TAHOE, CA--Continued
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 1996, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN 7.55 7.79 8.21 9.47 11.8 19.3 29.0 54.0 57.8 34.1 12.4 8.39
MAX 14.4 12.7 16.4 17.0 31.1 39.1 54.9 107 158 142 35.8 19.0
(WY) 1996 1996 1996 1996 1996 1995 1996 1996 1995 1995 1995 1995
MIN 4.49 5.03 4.05 4.70 5.49 7.85 12.2 14.2 7.66 5.84 4.48 4.08
(WY) 1991 1991 1991 1991 1993 1992 1991 1992 1992 1992 1994 1992
SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 1990 - 1996
ANNUAL TOTAL 17842.7 13590
ANNUAL MEAN 48.9 37.1 22.8
HIGHEST ANNUAL MEAN 46.9 1995
LOWEST ANNUAL MEAN 7.71 1992
HIGHEST DAILY MEAN 264 Jun 30 211 May 16 264 Jun 30 1995
LOWEST DAILY MEAN 9.7 Jan 5 10 Sep 26 2.0 Dec 22 1990
ANNUAL SEVEN-DAY MINIMUM 11 Feb 7 10 Sep 24 2.8 Dec 21 1990
INSTANTANEOUS PEAK FLOW 274 May 16 337 Jun 30 1995
INSTANTANEOUS PEAK STAGE 4.39 May 16 4.69 Jun 30 1995
ANNUAL RUNOFF (AC-FT) 35390 26960 16520
10 PERCENT EXCEEDS 132 93 56
50 PERCENT EXCEEDS 22 23 9.8
90 PERCENT EXCEEDS 12 12 4.5
USGS Water Resources of California
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