US Army Corps of Engineers

John Day & Lake Umatilla

April 2020

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 25486 1062 54 150.30 140.10 139.00 0.00 264.21 263.98 160.86 103.12
2 132.30 137.50 136.40 0.00 264.01 264.07 160.46 103.61
3 106.80 109.30 108.40 0.00 263.91 263.86 160.13 103.73
4 121.20 118.70 117.60 0.00 264.01 263.84 160.66 103.18
5 132.20 126.90 125.90 0.00 264.19 263.89 160.59 103.30
6 105.00 107.60 106.60 0.00 264.11 263.89 160.10 103.79
7 123.50 107.80 106.80 0.00 264.71 264.33 160.17 104.16
8 122.00 129.80 128.80 0.00 264.41 264.37 160.34 104.03
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TOT 25486  54        
AVG 25486 1062 54 124.16 122.21 121.19 0.00 264.19 264.03 160.41 103.61
MAX 25486   150.30 140.10 139.00 0.00 264.71 264.37 160.86 104.16
MIN 25486   105.00 107.60 106.60 0.00 263.91 263.84 160.10 103.12