US Army Corps of Engineers

John Day & Lake Umatilla

December 2019

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 23709 988 50 125.60 128.20 127.20 0.00 265.11 265.14 160.49 104.65
2 23720 988 51 130.70 128.10 126.90 0.00 265.21 265.12 160.21 104.91
3 23428 976 52 123.40 126.00 125.10 0.00 265.15 265.23 160.14 105.09
4 24797 1033 51 131.20 133.80 132.80 0.00 265.01 265.16 160.36 104.80
5 24839 1035 52 132.10 134.70 133.60 0.00 264.91 264.94 160.48 104.46
6 24547 1023 50 122.60 133.10 132.20 0.00 264.51 264.65 160.42 104.23
7 22432 935 50 122.40 122.30 121.20 0.00 264.51 264.42 160.52 103.90
8 20909 871 50 114.00 113.50 112.60 0.00 264.51 264.52 160.16 104.36
9 110.40 121.30 120.50 0.00 264.11 264.21 160.40 103.81
10 128.00 125.40 124.40 0.00 264.21 263.98 160.52 103.46
11 128.50 118.00 116.70 0.00 264.61 264.19 160.20 103.99
12 109.20 111.80 110.70 0.00 264.51 264.42 160.24 104.18
13 115.30 110.00 108.90 0.00 264.71 264.55 160.09 104.46
14 124.50 111.50 110.60 0.00 265.21 264.95 160.25 104.70
15 112.20 112.20 111.10 0.00 265.21 265.12 160.33 104.79
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TOT188380  405        
AVG 23547 981 51 122.01 121.99 120.97 0.00 264.77 264.71 160.32 104.39
MAX 24839   132.10 134.70 133.60 0.00 265.21 265.23 160.52 105.09
MIN 20909   109.20 110.00 108.90 0.00 264.11 263.98 160.09 103.46