US Army Corps of Engineers

Grand Coulee Dam

October 2020

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 55200 2300 144 84.80 93.20 93.20 0.00 1283.80 1283.89 960.15 323.74 2.66 1713 1568.65
2 49060 2044 144 86.30 82.10 82.10 0.00 1283.80 1283.75 959.49 324.26 2.60 1690 1568.58
3 38918 1622 144 73.70 64.70 64.70 0.00 1284.00 1283.90 957.78 326.12 2.65 1709 1568.52
4 35478 1478 144 68.20 59.50 59.50 0.00 1284.20 1284.19 957.07 327.12 7.70 4962 1568.71
5 37240 1552 144 65.70 62.50 62.50 0.00 1284.30 1284.18 957.40 326.78 2.40 1561 1568.74
6 39978 1666 144 64.60 67.40 67.40 0.00 1284.10 1284.19 957.39 326.80 1.99 1282 1568.61
7 37420 1559 144 63.00 63.80 63.80 0.00 1284.10 1284.08 957.64 326.44 1.99 1280 1568.47
8 28403 1183 144 62.60 48.30 48.30 0.00 1284.40 1284.13 956.33 327.80 1.96 1265 1568.31
9 34907 1454 144 68.50 58.80 58.80 0.00 1284.60 1284.43 957.37 327.06 2.18 1405 1568.19
10 31922 1330 144 60.90 54.40 54.40 0.00 1284.50 1284.53 956.88 327.65 7.64 4968 1568.36
11 31236 1302 144 65.40 51.80 51.80 0.00 1284.70 1284.56 957.05 327.51 7.70 4968 1568.57
12 35560 1482 144 65.20 59.40 59.40 0.00 1284.80 1284.64 958.29 326.35 2.23 1444 1568.60
13 37473 1561 144 57.10 63.40 63.40 0.00 1284.60 1284.53 958.54 325.99 1.26 830 1568.48
14 67.30 47.30 47.30 0.00 1285.10 1284.81 957.81 327.00 1568.24
15 60.70 81.30 81.30 0.00 1284.50 1284.74 960.30 324.44 1568.10
16 62.70 48.60 48.60 0.00 1284.80 1284.57 957.35 327.22 1567.90
17 55.80 38.60 38.60 0.00 1285.10 1284.98 956.41 328.57 1567.90
18 57.20 44.10 44.10 0.00 1285.20 1285.18 956.94 328.24 1568.23
19 51.30 38.50 38.50 0.00 1285.40 1285.27 957.39 327.88 1568.48
20 55.20 49.90 49.90 0.00 1285.50 1285.38 957.54 327.84 1568.48
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TOT492795  1872           
AVG 37907 1579 144 64.81 58.88 58.88 0.00 1284.58 1284.50 957.76 326.74 3.46 2237 1568.41
MAX 55200   86.30 93.20 93.20 0.00 1285.50 1285.38 960.30 328.57 7.70 4968 1568.74
MIN 28403   51.30 38.50 38.50 0.00 1283.80 1283.75 956.33 323.74 1.26 830 1567.90