Lower Monumental Dam & Lake

June 2026

Day of Month	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	62.20	62.40	12.10	49.60	538.39	538.63	438.53	100.10
2	56.10	56.40	12.20	43.40	538.29	538.32	438.47	99.85
3	51.40	50.90	12.20	38.00	538.44	538.40	438.30	100.10
4	50.10	49.50	12.30	36.60	538.60	538.48	438.30	100.18
5	46.90	46.50	12.20	33.60	538.71	538.57	438.27	100.30
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TOT
AVG	53.34	53.14	12.20	40.24	538.49	538.48	438.37	100.11

MAX	62.20	62.40	12.30	49.60	538.71	538.63	438.53	100.30
MIN	46.90	46.50	12.10	33.60	538.29	538.32	438.27	99.85