Wanapum Dam & Lake

October 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	9509	396	16	67.30	71.00	66.30	2.70	568.52	569.50	488.69	80.81
2	8206	342	16	61.30	61.20	57.90	1.30	568.53	567.70	488.30	79.40
3	7874	328	16	68.20	57.50	53.80	1.70	570.01	568.96	487.53	81.43
4	7612	317	16	45.80	55.50	51.80	1.70	568.67	568.99	487.52	81.47
5	7324	305	16	50.90	54.00	50.50	1.50	568.24	568.34	487.50	80.84
6	9187	383	16	69.40	67.40	64.10	1.30	568.51	567.67	488.28	79.39
7	8164	340	16	72.40	59.80	56.00	1.80	570.26	569.33	488.48	80.85
8	10308	430	16	71.50	74.50	70.30	2.20	569.84	570.54	489.28	81.26
9	12065	503	16	88.10	87.50	83.70	1.90	569.92	569.57	489.13	80.44
10	10754	448	16	76.50	78.50	74.70	1.80	569.64	569.48	488.98	80.50
11				54.00	58.50	54.70	1.80	569.03	569.17	487.86	81.31
12				61.50	75.40	71.80	1.60	567.09	568.50	488.71	79.79
13				85.60	77.10	74.00	1.10	568.27	567.07	488.31	78.76
14				75.00	81.00	77.80	1.20	567.43	567.27	488.49	78.78
15				88.10	70.00	66.40	1.60	569.94	568.63	487.81	80.82
16				81.30	82.60	65.70	14.90	569.77	569.78	488.43	81.35
17				49.60	64.40	61.00	1.40	567.72	568.09	487.35	80.74
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TOT	91003		160
AVG	9100	379	16	68.62	69.17	64.74	2.44	568.91	568.74	488.27	80.47

MAX	12065			88.10	87.50	83.70	14.90	570.26	570.54	489.28	81.47
MIN	7324			45.80	54.00	50.50	1.10	567.09	567.07	487.35	78.76