US Army Corps of Engineers

Grand Coulee Dam

April 2019

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetBanks Lake Pump kcfsBanks Lake Pump MWhBanks Lake Elev
1 34326 1430 97 63.70 64.00 64.00 0.00 1259.30 1259.19 957.61 301.58 1.47 1074 1569.27
2 30089 1254 103 68.00 59.40 59.40 0.00 1259.60 1259.35 957.71 301.64 0.00 0 1569.11
3 28928 1205 99 64.10 52.40 52.40 0.00 1259.90 1259.59 957.43 302.16 0.00 0 1568.98
4 29705 1238 98 66.80 53.70 53.70 0.00 1260.30 1259.93 957.21 302.72 0.00 0 1568.76
5 31318 1305 89 63.30 57.60 57.60 0.00 1260.30 1260.29 957.62 302.67 4.25 3105 1568.82
6 27629 1151 119 75.90 50.50 50.50 0.00 1260.90 1260.55 956.78 303.77 6.10 4464 1569.04
7 25689 1070 104 67.00 47.20 47.20 0.00 1261.30 1260.93 955.95 304.98 6.10 4464 1569.31
8 34958 1457 115 76.60 63.40 63.40 0.00 1261.60 1261.31 957.23 304.08 2.12 1551 1569.35
9 32020 1334 103 79.80 58.20 58.20 0.00 1262.10 1261.65 957.45 304.20 5.65 4097 1569.54
10 34574 1441 108 89.00 62.70 62.70 0.00 1262.70 1262.10 958.20 303.90 5.68 4091 1569.73
11 28063 1169 111 89.30 50.30 50.30 0.00 1263.70 1263.08 957.13 305.95 1.22 881 1569.61
12 30100 1254 107 92.90 53.90 53.90 0.00 1264.80 1264.19 957.04 307.15 1.26 906 1569.49
13 32055 1336 115 93.30 57.80 57.80 0.00 1265.70 1265.29 957.04 308.25 3.30 2273 1569.55
14 26002 1083 110 93.80 46.60 46.60 0.00 1266.90 1266.32 956.65 309.67 3.30 2280 1569.53
15 34314 1430 111 95.40 61.60 61.60 0.00 1267.90 1267.38 957.98 309.40 0.81 560 1569.28
16 48480 2020 102 87.90 87.20 87.20 0.00 1267.80 1267.76 959.51 308.25 3.95 2775 1569.64
17 48901 2038 87 80.80 86.90 86.90 0.00 1267.50 1267.61 959.84 307.77 3.25 2270 1569.29
18 50487 2104 84 98.40 89.80 89.80 0.00 1267.80 1267.64 960.23 307.41 0.05 32 1569.01
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TOT607638  1862           
AVG 33758 1407 103 80.33 61.29 61.29 0.00 1263.34 1263.01 957.70 305.31 2.69 1935 1569.29
MAX 50487   98.40 89.80 89.80 0.00 1267.90 1267.76 960.23 309.67 6.10 4464 1569.73
MIN 25689   63.30 46.60 46.60 0.00 1259.30 1259.19 955.95 301.58 0.00 0 1568.76