2000 California Hydrologic Data Report
b Change in contents, in acre-feet.
c Diversion, in acre-feet, through New Spicer Meadow Powerplant (station 11293760), provided by Northern
California Power Agency.
11293770 NEW SPICER MEADOW RESERVOIR NEAR BIG MEADOWS, CA.
LOCATION - Lat 38°23'35", long 119°59'53", in NW 1/4 NE 1/4 sec.9, T.7 N., R.18 E., Tuolumne County,
Hydrologic Unit 18040010, Stanislaus National Forest, at outlet structure on upstream face of New
Spicer Meadow Dam on Highland Creek, and 7.7 mi east-southeast of Big Meadows.
DRAINAGE AREA - 45.4 mi".
PERIOD OF RECORD - February 1990 to current year.
GAGE - Water-stage recorder. Datum of gage is sea level (levels by Calaveras County Water District).
REMARKS - Reservoir is formed by rockfill dam with a reinforced concrete face completed in December 1988.
Dam is 600 ft downstream from original concrete gravity-type dam which was completed in 1929. Usable
capacity, 184,298 acre-ft between elevations 6,420.0 ft, minimum operating head, and 6,614.0 ft,
crest of spillway. Released water is used for hydroelectric power and fishery maintenance. Records,
including extremes, represent total contents at 2400 hours. See schematic diagram of Stanislaus River
Basin.
COOPERATION - Records were collected by Northern California Power Agency, 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, 190,024 acre-ft, July 5, 1998, elevation, 6,614.5 ft;
minimum, 30,198 acre-ft, Mar. 5, 1993, elevation, 6,491.2 ft.
EXTREMES FOR CURRENT YEAR - Maximum contents, 180,800 acre-ft, June 12, 13, elevation, 6,609.62 ft; minimum,
69,539 acre-ft, Jan. 16, elevation, 6,540.09 ft. Capacity table (elevation, in feet, and contents,
in acre-feet) (Based on survey by Calaveras County Water District in July 1989) 6,420 4,702 6,500
35,214 6,580 125,341 6,440 9,299 6,520 50,197 6,600 160,318 6,460 15,511 6,540 69,652 6,614 189,000
6,480 23,781 6,560 94,859
RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY OBSERVATION AT 2400 HOURS
(NOT PREVIOUSLY PUBLISHED)
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 113568 99411 95079 89193 91116 87042 59925 66753 134006 152573 142667 123689
2 113224 99067 95166 89104 91232 86431 59925 67895 135621 152573 142286 123375
3 112866 98738 95342 89003 91206 86158 59925 68644 136645 152625 141924 123078
4 112554 98455 95327 88940 91001 85847 59925 69156 137265 152625 141616 122781
5 112301 98112 95546 88915 90860 85154 57983 69998 138154 152485 141291 122516
6 112034 97845 95502 88826 91040 84465 57025 71768 139404 152222 140931 122049
7 111693 97697 95517 88713 91553 83680 55976 74109 140481 152134 140660 121272
8 111338 97327 95415 88574 92080 82790 55037 76254 141291 151976 140301 120421
9 111013 96957 95298 88486 92402 81570 54106 78153 142322 151871 140031 119804
10 110688 96574 95137 88397 92480 80195 53446 79896 143338 151696 139762 119342
11 100379 96191 95137 88309 92609 78525 52693 82058 144614 151469 139476 119035
12 110036 95869 95181 88221 92713 76748 51794 84637 146152 150125 139135 118759
13 109703 95737 95035 88120 92829 75334 50848 86967 147786 148737 138778 118269
14 109306 95576 94572 88045 92829 74147 50378 88687 149343 148131 138475 117582
15 108942 95415 94154 88032 92920 72896 50020 90082 150038 147959 138154 117126
16 108515 95152 94011 88133 93062 71268 50425 91553 150910 147700 137798 116594
17 108216 94716 93907 88297 93049 69489 51509 93490 151959 147441 137283 116140
18 107869 94350 93946 88889 92687 68374 52751 95590 152784 147183 136663 115686
19 107555 94272 93802 89358 92609 67745 53639 97830 153452 146925 136344 115233
20 107022 94206 93555 89713 92338 67100 55283 100342 153928 146581 136026 114857
21 106226 94128 93036 89866 92080 66408 56744 103167 153999 146341 135586 114406
22 105324 94089 91630 90235 91540 65632 57800 106475 154423 146066 134443 113732
23 104458 94311 91001 90579 90605 64821 58592 109941 154511 145809 132958 112836
24 103827 94285 90656 90592 89713 63987 59359 112985 154688 145416 131673 112167
25 103091 94233 90656 90745 88586 63254 60441 116140 155042 144869 130103 111427
26 102602 94115 90222 90771 88322 62669 61811 119266 155397 144528 128339 110468
27 102342 93998 89967 90809 88083 62201 63196 122360 155574 144273 127115 109037
28 101810 93828 89751 90924 87631 61668 64306 125309 154865 143967 126353 107571
29 100991 93946 89510 90975 --- 61006 64987 127709 153805 143678 125425 106429
30 100252 94795 89370 91014 --- 60225 65671 129931 153100 143423 124553 104844
31 99771 --- 89256 91116 --- 59925 --- 132176 --- 143084 124144 ---
MAX 113568 99411 95546 91116 93062 87042 65671 132176 155574 152625 142667 123689
MIN 99771 93828 89256 88032 87631 59925 50020 66753 134006 143084 124144 104844
a 6563.32 6559.95 6555.65 6557.11 6554.36 6530.00 6536.00 6584.00 6595.95 6590.15 6579.24 6566.65
b -14211 -4976 -5539 +1860 -3485 -27706 +5746 +66505 +20924 -10016 -18940 -19300
c 14110 9330 9710 2830 8160 37200 15400 3500 16980 13840 18610 19740
CAL YR 1998 MAX 190024 MIN 36712 b +34844 c 180100
WTR YR 1999 MAX 155574 MIN 50020 b -9138 c 169400
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