Lower Monumental Dam & Lake

September 2025

Day of Month	Total Generation MWh	Average Generation MW	Station Use MWh	Inflow kcfs	Total Outflow kcfs	Generation Flow kcfs	Spill kcfs	Midnight Reservoir Elevation	Average Forebay Elevation	Average Tailwater Elevation	Average Head feet
1	3443	143	14	20.50	21.70	19.50	1.40	538.28	538.62	439.23	99.39
2	3949	165	18	25.80	24.30	22.40	1.30	538.70	538.53	439.16	99.37
3	2594	108	23	16.50	17.00	14.80	1.40	538.56	538.40	439.21	99.19
4	2907	121	22	18.60	18.60	16.50	1.40	538.58	538.42	439.02	99.40
5	3850	160	22	23.80	23.70	21.80	1.30	538.60	538.62	439.02	99.60
6	3613	151	21	23.60	22.40	20.40	1.40	538.95	538.85	438.94	99.91
7	3660	152	22	21.70	22.90	20.60	1.40	538.60	538.77	439.12	99.65
8	3476	145	22	21.70	21.80	19.70	1.40	538.58	538.55	439.15	99.40
9	3392	141	22	20.70	21.30	19.30	1.30	538.40	538.38	439.16	99.22
10				18.10	18.20	16.10	1.30	538.38	538.15	439.18	98.97
11				17.70	17.70	15.60	1.30	538.34	538.35	438.97	99.38
12				18.70	17.60	15.60	1.30	538.66	538.52	439.06	99.46
13				18.80	18.50	16.40	1.30	538.77	538.69	439.08	99.61
14				21.30	21.30	19.10	1.40	538.76	538.89	439.11	99.78
15				20.00	19.80	17.80	1.40	538.82	538.74	439.07	99.67
16				26.10	26.20	24.00	1.40	538.89	538.92	439.21	99.71
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30

TOT	30884		186
AVG	3432	143	21	20.85	20.81	18.73	1.36	538.62	538.59	439.11	99.48

MAX	3949			26.10	26.20	24.00	1.40	538.95	538.92	439.23	99.91
MIN	2594			16.50	17.00	14.80	1.30	538.28	538.15	438.94	98.97