US Army Corps of Engineers

Grand Coulee Dam

September 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 37822 1576 96 67.90 66.30 66.20 0.10 1277.20 1277.36 958.02 319.34 15.93 10733 1565.84
2 39992 1666 96 74.10 69.50 69.40 0.10 1277.20 1277.17 958.02 319.15 4.59 3083 1565.80
3 35984 1499 96 76.50 60.30 60.20 0.10 1277.50 1277.36 956.86 320.50 3.35 2229 1565.45
4 39597 1650 96 76.70 67.50 67.40 0.10 1277.60 1277.50 957.10 320.40 8.03 5426 1565.40
5 35991 1500 96 73.20 61.20 61.10 0.10 1277.70 1277.65 956.68 320.97 7.43 4987 1565.35
6 39600 1650 96 75.00 68.00 67.90 0.10 1277.70 1277.67 957.39 320.28 7.42 4978 1565.46
7 22772 949 96 70.50 40.20 40.10 0.10 1278.20 1277.85 955.18 322.67 11.07 7527 1565.85
8 25162 1048 96 63.20 44.30 44.30 0.00 1278.30 1278.25 954.89 323.36 15.53 10427 1566.57
9 36139 1506 96 73.70 63.00 62.90 0.10 1278.40 1278.34 957.19 321.15 5.40 3637 1566.64
10 26660 1111 96 67.90 46.90 46.80 0.10 1278.80 1278.58 955.57 323.01 5.42 3655 1566.70
11 28391 1183 96 78.30 52.60 52.50 0.10 1279.40 1279.01 956.25 322.76 5.54 3717 1566.73
12 33367 1390 96 82.90 67.50 67.40 0.10 1279.60 1279.47 956.48 322.99 5.51 3723 1566.78
13 38168 1590 96 80.70 69.80 69.70 0.10 1279.60 1279.65 957.31 322.34 10.11 6721 1567.09
14 33604 1400 96 61.30 58.60 58.50 0.10 1279.30 1279.43 957.06 322.37 15.96 10739 1567.43
15 32107 1338 96 54.60 56.20 56.10 0.10 1278.80 1279.06 956.66 322.40 15.90 10730 1568.80
16 27405 1142 96 58.60 47.40 47.30 0.10 1279.00 1278.79 955.12 323.67 4.79 3327 1568.80
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TOT532761  1536           
AVG 33298 1387 96 70.94 58.71 58.61 0.09 1278.39 1278.32 956.61 321.71 8.87 5977 1566.54
MAX 39992   82.90 69.80 69.70 0.10 1279.60 1279.65 958.02 323.67 15.96 10739 1568.80
MIN 22772   54.60 40.20 40.10 0.00 1277.20 1277.17 954.89 319.15 3.35 2229 1565.35