Grand Coulee Dam

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	Banks Lake Pump kcfs	Banks Lake Pump MWh	Banks Lake Elev
1	28454	1186	171	55.30	48.90	48.90	0.00	1286.70	1286.61	956.05	330.56	2.42	1625	1568.09
2	32240	1343	167	52.70	54.00	54.00	0.00	1286.60	1286.69	956.82	329.87	2.27	1513	1567.95
3	25690	1070	168	55.10	43.90	43.90	0.00	1286.80	1286.70	956.20	330.50	2.32	1535	1567.81
4	36216	1509	167	65.90	61.90	61.90	0.00	1286.70	1286.86	957.50	329.36	7.20	4752	1568.00
5	36088	1504	175	53.20	60.60	60.60	0.00	1286.50	1286.57	957.43	329.14	2.24	1554	1567.86
6	40997	1708	211	61.50	69.00	69.00	0.00	1286.30	1286.40	957.95	328.45	2.18	1483	1567.67
7	42655	1777	209	62.90	71.90	71.90	0.00	1286.00	1286.14	958.16	327.98	2.25	1531	1567.47
8								1285.80
9	36224	1509	196	59.20	59.70	59.70	0.00	1285.60	1285.69	956.83	328.86	10.70	7079	1567.69
10				64.30	56.10	56.10	0.00	1285.50	1285.52	956.47	329.05			1567.99
11				63.30	61.90	61.90	0.00	1285.30	1285.30	957.22	328.08			1568.36
12				68.60	62.40	62.40	0.00	1285.30	1285.21	957.38	327.83			1568.41
13				59.70	57.70	57.70	0.00	1285.40	1285.31	956.82	328.49			1567.89
14				65.60	47.20	47.20	0.00	1285.90	1285.62	955.68	329.94			1567.51
15				65.90	52.20	52.20	0.00	1286.20	1285.99	956.43	329.56			1567.12
16				70.90	48.70	48.70	0.00	1286.70	1286.48	955.77	330.71			1566.78
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TOT	278564		1464
AVG	34820	1451	183	61.61	57.07	57.07	0.00	1286.08	1286.07	956.85	329.23	3.95	2634	1567.77

MAX	42655			70.90	71.90	71.90	0.00	1286.80	1286.86	958.16	330.71	10.70	7079	1568.41
MIN	25690			52.70	43.90	43.90	0.00	1285.30	1285.21	955.68	327.83	2.18	1483	1566.78