US Army Corps of Engineers

Grand Coulee Dam

October 2017

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 34355 1431 75 59.70 58.00 58.00 0.00 1286.10 1286.20 957.50 328.70 7.70 4991 1568.55
2 47520 1980 85 62.70 80.10 80.10 0.00 1285.60 1285.82 958.33 327.49 2.55 1648 1568.55
3 38661 1611 83 57.70 65.50 65.50 0.00 1285.40 1285.42 958.09 327.33 2.22 1440 1568.41
4 38980 1624 87 54.00 65.70 65.70 0.00 1285.00 1285.19 957.94 327.25 2.29 1490 1568.30
5 39387 1641 83 67.40 66.00 66.00 0.00 1285.00 1284.94 957.48 327.46 3.35 2115 1568.25
6 33050 1377 84 58.90 55.60 55.60 0.00 1285.00 1284.93 956.14 328.79 3.30 2110 1568.20
7 31673 1320 78 58.80 53.50 53.50 0.00 1285.00 1284.93 956.18 328.75 3.29 2104 1568.11
8 34487 1437 84 59.70 57.90 57.90 0.00 1284.80 1284.92 957.17 327.75 9.70 6197 1568.46
9 46405 1934 96 57.20 78.20 78.20 0.00 1284.20 1284.37 959.04 325.33 2.85 1842 1568.39
10 39164 1632 91 58.90 68.90 68.90 0.00 1283.90 1283.95 957.74 326.21 1.90 1257 1568.27
11 36492 1520 101 58.40 62.50 62.50 0.00 1283.80 1283.74 957.18 326.56 1.88 1235 1568.11
12 38116 1588 116 62.70 64.30 64.30 0.00 1283.70 1283.64 957.04 326.60 2.28 1485 1567.99
13 34253 1427 111 56.00 58.70 58.70 0.00 1283.50 1283.50 956.31 327.19 3.22 2075 1567.94
14 31596 1316 118 61.40 53.60 53.60 0.00 1283.50 1283.53 956.00 327.53 5.85 3696 1568.08
15 29899 1246 105 62.40 50.90 50.90 0.00 1283.60 1283.51 956.78 326.73 9.60 6195 1568.53
16 30581 1274 100 62.10 52.10 52.10 0.00 1283.80 1283.69 956.71 326.98 2.08 1348 1568.51
17 28153 1173 94 65.30 47.60 47.60 0.00 1284.20 1283.94 956.12 327.82 1.88 1223 1568.41
18 36801 1533 96 64.00 61.90 61.90 0.00 1284.20 1284.17 957.31 326.86 2.16 1413 1568.37
19 26289 1095 85 62.80 43.70 43.70 0.00 1284.60 1284.32 956.07 328.25 3.20 2057 1568.32
20 29562 1232 96 69.20 50.40 50.40 0.00 1285.00 1284.78 956.00 328.78 2.87 1851 1568.34
21 28039 1168 114 74.10 48.30 48.30 0.00 1285.60 1285.25 957.05 328.20 1.79 1180 1568.23
22 23190 966 96 60.20 39.30 39.30 0.00 1285.90 1285.73 955.98 329.75 8.90 5952 1568.60
23 33324 1388 104 64.80 55.10 55.10 0.00 1286.10 1286.00 956.68 329.32 1.66 1110 1568.69
24 28802 1200 105 66.60 49.30 49.30 0.00 1286.50 1286.24 955.70 330.54 1.19 808 1568.72
25 27435 1143 113 59.30 46.40 46.40 0.00 1286.80 1286.61 955.69 330.92 0.87 588 1568.79
26 29498 1229 103 62.30 50.10 50.10 0.00 1287.10 1286.97 956.90 330.07 0.00 0 1568.76
27 29378 1224 105 67.10 48.70 48.70 0.00 1287.50 1287.27 956.78 330.49 0.00 0 1568.76
28 24965 1040 103 56.20 41.90 41.90 0.00 1287.90 1287.65 955.68 331.97 0.00 0 1568.76
29 27270 1136 103 55.30 45.10 45.10 0.00 1288.20 1287.96 955.86 332.10 0.00 0 1568.74
30 32348 1348 116 52.40 54.40 54.40 0.00 1288.10 1288.10 956.95 331.15 0.00 0 1568.74
31 28297 1179 127 53.60 47.40 47.40 0.00 1288.20 1288.05 956.85 331.20 0.00 0 1568.74
TOT1017970  3057           
AVG 32838 1368 99 61.01 55.52 55.52 0.00 1285.41 1285.33 956.81 328.52 2.86 1852 1568.44
MAX 47520   74.10 80.10 80.10 0.00 1288.20 1288.10 959.04 332.10 9.70 6197 1568.79
MIN 23190   52.40 39.30 39.30 0.00 1283.50 1283.50 955.68 325.33 0.00 0 1567.94