US Army Corps of Engineers

Grand Coulee Dam

December 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 56208 2342 144 90.30 94.80 94.80 0.00 1272.40 1272.41 960.86 311.55 0.00 0 1568.04
2 52230 2176 144 88.30 90.50 90.50 0.00 1272.30 1272.29 960.30 311.99 0.00 0 1567.96
3 50961 2123 144 87.30 88.40 88.40 0.00 1272.30 1272.22 959.91 312.31 0.00 0 1567.95
4 51511 2146 144 91.60 90.50 90.50 0.00 1272.30 1272.43 960.61 311.82 0.00 0 1567.95
5 54022 2251 144 88.70 94.90 94.90 0.00 1272.20 1272.16 960.79 311.37 0.00 0 1567.94
6 53774 2241 144 86.10 93.50 93.50 0.00 1272.00 1272.05 959.77 312.28 0.00 0 1567.98
7 51696 2154 144 88.80 90.30 90.30 0.00 1271.90 1271.88 960.19 311.69 0.00 0 1567.97
8 49094 2046 144 84.20 86.00 86.00 0.00 1271.90 1271.93 959.28 312.65 0.00 0 1568.02
9 55446 2310 144 92.80 96.80 96.80 0.00 1271.70 1271.76 960.63 311.13 0.00 0 1568.00
10 56031 2335 144 91.30 97.90 97.90 0.00 1271.60 1271.59 960.95 310.64 0.00 0 1568.00
11 58885 2454 144 93.20 102.60 102.60 0.00 1271.30 1271.39 961.08 310.31 0.00 0 1568.00
12 47583 1983 144 89.30 83.90 83.90 0.00 1271.50 1271.28 959.74 311.54 0.00 0 1568.00
13 47346 1973 144 86.90 82.90 82.90 0.00 1271.60 1271.50 959.12 312.38 0.00 0 1568.00
14 48703 2029 144 89.90 85.60 85.60 0.00 1271.70 1271.59 959.45 312.14 0.00 0 1568.00
15 38819 1617 144 85.70 67.40 67.40 0.00 1272.20 1271.92 957.66 314.26 0.00 0 1568.00
16 49008 2042 144 102.20 85.30 85.30 0.00 1272.60 1272.41 959.66 312.75 0.00 0 1568.00
17 46589 1941 144 97.30 81.40 81.40 0.00 1273.10 1272.82 959.18 313.64 0.00 0 1568.00
18 43929 1830 144 98.10 77.00 77.00 0.00 1273.60 1273.34 959.25 314.09 0.00 0 1568.00
19 41817 1742 144 103.80 72.60 72.60 0.00 1274.50 1274.08 958.76 315.32 0.00 0 1567.99
20 35852 1494 144 99.70 62.00 62.00 0.00 1275.50 1274.88 957.80 317.08 0.00 0 1568.01
21 34497 1437 144 99.70 58.80 58.80 0.00 1276.60 1276.04 957.25 318.79 0.00 0 1568.01
22 41281 1720 144 95.40 69.80 69.80 0.00 1277.30 1276.93 957.54 319.39 0.00 0 1568.00
23 45655 1902 144 99.20 77.20 77.20 0.00 1277.80 1277.95 958.59 319.36 0.00 0 1568.01
24 45655 1902 144 99.20 77.20 77.20 0.00 1278.40 1277.95 958.59 319.36 0.00 0 1568.01
25 43038 1793 144 98.90 73.80 73.80 0.00 1279.00 1278.75 958.20 320.55 0.00 0 1568.00
26 48430 2018 144 106.40 83.20 83.20 0.00 1279.60 1279.24 959.44 319.80 0.00 0 1568.00
27 52356 2182 144 103.00 89.70 89.70 0.00 1280.00 1279.68 960.02 319.66 0.00 0 1568.00
28 50077 2087 144 100.30 84.90 84.90 0.00 1280.40 1280.21 959.47 320.74 0.00 0 1567.97
29 44748 1864 144 96.00 76.70 76.70 0.00 1280.90 1280.63 958.90 321.73 0.00 0 1567.97
30 50247 2094 144 100.20 85.10 85.10 0.00 1281.30 1281.02 959.64 321.38 0.00 0 1567.97
31 43265 1803 144 106.90 73.90 73.90 0.00 1282.10 1281.70 958.82 322.88 0.00 0 1568.00
TOT1488753  4464           
AVG 48024 2001 144 94.86 83.05 83.05 0.00 1274.89 1274.71 959.40 315.31 0.00 0 1567.99
MAX 58885   106.90 102.60 102.60 0.00 1282.10 1281.70 961.08 322.88 0.00 0 1568.04
MIN 34497   84.20 58.80 58.80 0.00 1271.30 1271.28 957.25 310.31 0.00 0 1567.94