US Army Corps of Engineers

Libby Dam & Lake Koocanusa

September 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetMidnight Storage kaf
1 3960 165 12 5.40 7.00 7.00 0.00 2453.30 2453.33 2119.25 334.08 4717.70
2 3960 165 12 5.20 7.00 7.00 0.00 2453.22 2453.29 2119.25 334.04 4714.00
3 3960 165 12 4.50 7.00 7.00 0.00 2453.11 2453.19 2119.23 333.96 4709.00
4 4800 200 12 4.80 8.00 8.00 0.00 2452.97 2453.05 2119.85 333.20 4702.70
5 4800 200 12 4.30 8.00 8.00 0.00 2452.81 2452.89 2119.80 333.09 4695.40
6 4800 200 12 4.10 8.00 8.00 0.00 2452.64 2452.73 2119.80 332.93 4687.70
7 4800 200 12 4.80 8.00 8.00 0.00 2452.50 2452.60 2119.80 332.80 4681.40
8 4800 200 12 3.90 8.00 8.00 0.00 2452.32 2452.43 2119.80 332.63 4673.20
9 4800 200 12 2452.14
10 4800 200 12 4.80 8.00 8.00 0.00 2452.00 2452.10 2119.80 332.30 4658.80
11 4800 200 12 5.00 8.00 8.00 0.00 2451.87 2451.93 2119.80 332.13 4652.90
12 4800 200 12 4.10 8.00 8.00 0.00 2451.70 2451.79 2119.80 331.99 4645.20
13 4800 200 12 5.00 8.00 8.00 0.00 2451.57 2451.66 2119.80 331.86 4639.40
14 4800 200 12 4.60 8.00 8.00 0.00 2451.42 2451.52 2119.80 331.72 4632.60
15 4800 200 12 5.50 8.00 8.00 0.00 2451.31 2451.35 2119.80 331.55 4627.60
16 4800 200 12 4.10 8.00 8.00 0.00 2451.14 2451.23 2119.80 331.43 4620.00
17 4800 200 12 4.40 8.00 8.00 0.00 2450.98 2451.08 2119.80 331.28 4612.80
18 4800 200 12 3.90 8.00 8.00 0.00 2450.80 2450.86 2119.80 331.06 4604.70
19 4800 200 12 5.50 8.00 8.00 0.00 2450.69 2450.73 2119.80 330.93 4599.70
20 4.60 8.00 8.00 0.00 2450.54 2450.61 2119.80 330.81 4593.00
21 4.60 8.00 8.00 0.00 2450.39 2450.47 2119.80 330.67 4586.30
22 4.40 8.00 8.00 0.00 2450.23 2450.32 2119.80 330.52 4579.10
23 5.30 8.00 8.00 0.00 2450.11 2450.18 2119.80 330.38 4573.70
24 5.30 8.00 8.00 0.00 2449.99 2450.07 2119.80 330.27 4568.30
25 3.70 8.00 8.00 0.00 2449.80 2449.89 2119.80 330.09 4559.80
26 4.60 8.00 8.00 0.00 2449.65 2449.72 2119.80 329.92 4553.10
27
28
29
30
TOT 88680  228         
AVG 4667 194 12 4.66 7.88 7.88 0.00 2451.51 2451.56 2119.74 331.83 4635.52
MAX 4800   5.50 8.00 8.00 0.00 2453.30 2453.33 2119.85 334.08 4717.70
MIN 3960   3.70 7.00 7.00 0.00 2449.65 2449.72 2119.23 329.92 4553.10