Chief Joseph Dam & Rufus Woods Lake

October 2026

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	14359	598	26	49.00	44.40	44.40	0.00	953.40	952.70	779.20	173.50
2	17835	743	25	54.40	55.20	55.20	0.00	953.20	953.00	779.10	173.90
3	14153	590	24	45.00	43.40	43.40	0.00	953.60	953.10	778.10	175.00
4	19987	833	23	62.00	62.00	62.00	0.00	953.60	953.00	779.30	173.70
5	20910	871	24	60.80	64.30	64.30	0.00	952.70	953.70	779.70	174.00
6	21854	911	24	68.30	67.50	67.50	0.00	952.90	953.00	779.80	173.20
7	24208	1009	24	72.70	74.60	74.60	0.00	952.40	952.90	778.70	174.20
8	22031	918	24	67.80	67.80	67.80	0.00	952.40	952.30	778.30	174.00
9	18899	787	25	59.30	58.10	58.10	0.00	952.70	952.60	776.90	175.70
10				56.40	57.20	57.20	0.00	952.50	952.50	778.90	173.60
11				62.90	61.30	61.30	0.00	952.90	952.90	779.50	173.40
12				63.70	63.30	63.30	0.00	953.00	953.00	779.40	173.60
13				57.30	58.50	58.50	0.00	952.80	952.90	779.10	173.80
14				46.40	48.70	48.70	0.00	952.10	952.60	779.30	173.30
15				49.70	43.10	43.10	0.00	953.80	953.10	778.60	174.50
16				42.70	49.70	49.70	0.00	952.00	952.80	778.60	174.20
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1

TOT	174236		220
AVG	19360	807	24	57.40	57.44	57.44	0.00	952.87	952.88	778.91	173.98

MAX	24208			72.70	74.60	74.60	0.00	953.80	953.70	779.80	175.70
MIN	14153			42.70	43.10	43.10	0.00	952.00	952.30	776.90	173.20