US Army Corps of Engineers

John Day & Lake Umatilla

February 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 23942 998 54 139.60 129.20 128.90 0.00 264.51 264.15 160.08 104.07
2 25434 1060 54 137.20 137.20 136.70 0.00 264.51 264.52 160.31 104.21
3 27824 1159 55 151.70 149.40 149.10 0.00 264.61 264.53 160.33 104.20
4 33753 1406 57 179.70 182.00 181.70 0.00 264.51 264.62 161.01 103.61
5 32729 1364 55 171.70 176.90 176.50 0.00 264.31 264.42 160.92 103.50
6 34786 1449 53 184.00 189.20 188.80 0.00 264.11 264.29 161.48 102.81
7 37146 1548 54 205.00 205.00 202.10 2.50 264.19 264.18 161.46 102.72
8 38362 1598 55 246.80 228.60 210.70 17.50 264.80 264.30 162.30 102.00
9 39068 1628 54 215.80 213.20 212.80 0.00 264.90 264.90 162.00 102.90
10 39118 1630 55 201.70 217.40 214.30 2.90 264.31 264.63 162.21 102.42
11 35684 1487 56 196.00 196.00 195.60 0.00 264.31 264.08 162.03 102.05
12 186.00 201.30 200.90 0.00 263.71 264.12 161.96 102.16
13 197.50 190.00 189.60 0.00 264.02 263.93 161.57 102.36
14 189.80 189.80 189.50 0.00 264.01 263.94 161.13 102.81
15 190.20 205.10 204.80 0.00 263.41 263.66 161.81 101.85
16 157.60 160.10 159.60 0.00 263.31 263.21 161.18 102.03
17 190.50 185.50 185.10 0.00 263.51 263.42 161.20 102.22
18 203.00 198.20 197.80 0.00 263.61 263.62 161.27 102.35
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TOT367847  603        
AVG 33441 1393 55 185.77 186.34 184.69 1.27 264.15 264.14 161.35 102.79
MAX 39118   246.80 228.60 214.30 17.50 264.90 264.90 162.30 104.21
MIN 23942   137.20 129.20 128.90 0.00 263.31 263.21 160.08 101.85