US Army Corps of Engineers

Lower Monumental Dam & Lake

May 2022

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 2171 90 14 43.10 44.30 12.20 31.30 537.99 538.17 437.54 100.63
2 2159 90 14 45.10 43.60 12.10 30.80 538.41 538.10 437.62 100.48
3 2383 99 14 45.50 47.60 13.40 33.40 537.81 538.02 437.62 100.40
4 2398 100 14 49.60 48.40 13.60 34.10 538.18 537.91 437.78 100.13
5 2456 102 14 53.50 54.70 13.80 40.00 537.83 537.94 437.70 100.24
6 3107 129 14 63.20 60.60 17.50 42.30 538.60 538.05 437.93 100.12
7 6073 253 14 104.60 104.30 34.60 68.90 538.70 538.50 439.26 99.24
8 7629 318 14 114.40 113.10 43.50 68.90 539.07 538.45 439.47 98.98
9 6169 257 14 101.50 104.70 35.10 68.90 538.12 538.29 439.00 99.29
10 5135 214 14 84.20 83.70 29.20 53.80 538.27 538.07 438.58 99.49
11 4121 172 13 74.90 75.30 23.20 51.30 538.15 538.23 438.16 100.07
12 3720 155 13 66.10 64.40 21.10 42.60 538.64 538.12 438.31 99.81
13 3800 158 14 66.10 69.00 21.50 46.60 537.79 538.08 438.27 99.81
14 3284 137 13 67.40 64.40 18.50 45.10 538.66 538.06 438.14 99.92
15 3535 147 13 66.80 69.30 19.90 48.60 537.91 538.41 438.17 100.24
16 3572 149 13 72.50 69.20 20.30 48.20 538.91 538.10 438.45 99.65
17 5024 209 13 91.30 90.20 28.60 60.90 539.23 538.31 439.01 99.30
18 5767 240 14 104.60 104.70 32.90 71.00 539.22 538.30 439.34 98.96
19 6520 272 14 107.00 109.40 37.30 71.30 538.51 538.26 439.56 98.70
20 5392 225 14 101.80 102.40 30.80 70.80 538.35 538.23 439.23 99.00
21 92.80 92.10 31.20 60.20 538.54 538.19 438.99 99.20
22 85.50 87.00 26.50 59.60 538.11 538.13 438.87 99.26
23 79.40 80.20 25.00 54.30 537.88 538.08 438.63 99.45
24 78.60 76.40 24.20 51.30 538.54 538.18 438.57 99.61
25 78.40 80.40 25.30 54.20 537.96 537.94 438.68 99.26
26 83.30 81.30 25.60 55.00 538.55 538.16 438.59 99.57
27 103.70 104.70 29.90 74.00 538.24 538.27 439.28 98.99
28
29
30
31
TOT 84415  274        
AVG 4221 176 14 78.70 78.72 24.70 53.24 538.38 538.17 438.55 99.62
MAX 7629   114.40 113.10 43.50 74.00 539.23 538.50 439.56 100.63
MIN 2159   43.10 43.60 12.10 30.80 537.79 537.91 437.54 98.70