US Army Corps of Engineers

Wanapum Dam & Lake

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 15579 649 22 106.40 113.80 112.30 0.00 568.99 569.66 490.88 78.78
2 16316 680 23 115.40 121.50 120.30 0.00 568.14 568.37 490.98 77.39
3 14958 623 24 108.50 111.10 110.20 0.00 567.78 568.28 490.56 77.72
4 13958 582 24 92.20 107.40 106.50 0.00 565.64 565.85 490.47 75.38
5 12410 517 23 107.40 103.90 102.50 0.00 566.14 565.30 489.79 75.51
6 13497 562 23 109.40 103.60 102.20 0.00 566.96 567.03 490.14 76.89
7 14810 617 20 105.50 113.50 112.10 0.00 565.84 566.51 490.93 75.58
8 12492 520 19 93.20 95.50 94.10 0.00 565.51 565.56 489.76 75.80
9 110.60 106.00 104.90 0.00 566.16 566.15 490.25 75.90
10 100.60 103.70 102.80 0.00 565.72 565.95 489.92 76.03
11 111.80 100.40 97.70 1.80 567.32 566.83 489.78 77.05
12 106.10 98.10 97.20 0.00 568.43 568.18 490.15 78.03
13 97.30 102.60 101.70 0.00 567.68 568.11 490.11 78.00
14 97.50 99.40 98.50 0.00 567.41 567.41 489.93 77.48
15 90.30 80.70 76.80 3.00 568.75 568.52 488.62 79.90
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TOT114020  178        
AVG 14252 594 22 103.48 104.08 102.65 0.32 567.10 567.18 490.15 77.03
MAX 16316   115.40 121.50 120.30 3.00 568.99 569.66 490.98 79.90
MIN 12410   90.30 80.70 76.80 0.00 565.51 565.30 488.62 75.38