10287700 TIOGA LAKE NEAR LEE VINING, CA
LOCATION.-Lat 37°55'41", long 119°15'01", in SE 1/4 SE 1/4 sec.19, T.1 N., R.25 E., Mono County, Hydrologic Unit 18090101, Inyo National Forest, at
left abutment of dam on Glacier Creek and 7.4 mi west of Lee Vining.
DRAINAGE AREA.-3.67 mi2.
PERIOD OF RECORD.-October 1990 to current year. Unpublished records prior to October 1990 available in files of Southern California Edison Co.
GAGE.-Water-stage recorder. Datum of gage is sea level (levels by Southern California Edison Co.).
REMARKS.-Reservoir is formed on natural lake by rock-fill dam completed in 1928. Usable capacity, 1,254 acre-ft between elevations 9,626.72 ft, invert of
outlet, and 9,650.28 ft, crest of spillway. Figures given represent usable contents. Water is used for power development downstream.
COOPERATION.-Records collected by Southern California Edison Co., under general supervision of the U.S. Geological Survey, in connection with a Federal Energy
Regulatory Commission project. Contents not rounded to U.S. Geological Survey standards.
EXTREMES FOR PERIOD OF RECORD.-Maximum contents, 1,284 acre-ft, June 13, 1996, elevation, 9,650.68 ft; minimum, 88 acre-ft, several days in 1992, elevation,
9,628.95 ft.
EXTREMES FOR CURRENT YEAR.-Maximum contents, 1,265 acre-ft, Aug. 17-19, elevation, 9,650.42 ft; minimum, 122 acre-ft, Jan. 1, elevation, 9,629.77 ft.
Capacity table (elevation, in feet, and contents, in acre-feet)
(Based on survey by Southern California Edison Co., dated Aug. 19, 1981)
9,626.72 0 9,640 609
9,630 131 9,646 962
9,635 356 9,652 1,383
RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY OBSERVATION AT 2400 HOURS
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1044 336 126 122 129 125 131 141 165 1053 1057 1255
2 1027 316 125 125 136 125 129 142 184 1064 1021 1243
3 1007 299 125 125 138 125 129 143 200 1068 987 1236
4 988 281 125 127 135 125 128 143 206 1068 978 1228
5 970 263 125 127 132 127 127 143 221 1061 999 1220
6 953 249 127 126 136 127 128 142 248 1064 1028 1212
7 935 235 127 127 138 127 128 139 273 1079 1062 1201
8 917 219 131 125 138 126 127 137 302 1110 1090 1192
9 901 205 130 126 134 126 126 138 334 1143 1113 1191
10 887 194 127 127 133 125 125 137 366 1150 1135 1183
11 869 183 126 129 131 125 126 137 380 1130 1157 1171
12 853 171 126 133 131 125 126 136 392 1112 1180 1158
13 836 161 123 131 130 125 126 136 408 1101 1202 1146
14 811 152 127 131 135 124 127 134 456 1079 1224 1133
15 779 143 127 137 133 124 127 133 535 1083 1245 1126
16 747 134 126 134 131 124 125 136 633 1108 1260 1128
17 716 129 125 131 131 124 125 134 691 1136 1265 1133
18 686 127 125 132 129 123 125 133 751 1158 1265 1135
19 656 129 124 132 130 124 125 133 817 1174 1265 1135
20 629 127 124 131 129 124 126 135 878 1203 1263 1135
21 600 126 123 129 131 124 128 136 940 1214 1262 1135
22 572 125 125 128 131 124 132 136 993 1215 1260 1135
23 546 125 124 127 132 126 135 139 1016 1217 1259 1133
24 520 124 125 127 131 133 134 143 1011 1230 1259 1133
25 494 126 125 126 129 135 133 148 1024 1228 1258 1133
26 468 133 124 125 128 133 131 152 1017 1214 1259 1135
27 444 130 123 125 127 134 130 148 1012 1198 1259 1136
28 421 129 123 125 126 134 131 149 1030 1180 1259 1135
29 398 128 123 127 --- 132 133 148 1048 1157 1259 1137
30 376 127 123 127 --- 130 138 146 1051 1128 1258 e1138
31 356 --- 122 127 --- 130 --- 151 --- 1093 1256 ---
MAX 1044 336 131 137 138 135 138 152 1051 1230 1265 1255
MIN 356 124 122 122 126 123 125 133 165 1053 978 1126
a 9634.99 9629.91 9629.78 9629.90 9629.87 9629.98 9630.16 9630.46 9647.36 9647.99 9650.30
b -708 -229 -5 +5 -1 +4 +8 +13 +900 +42 +163 -118
CAL YR 1997 MAX 1276 MIN 116 b -4
WTR YR 1998 MAX 1265 MIN 122 b +74
e Estimated.
a Elevation, in feet, at end of month.
b Change in contents, in acre feet.
USGS Water Resources of California
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Last modified: Wed Aug 4 09:40:26 PDT 1999