The Dalles Dam

September 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	11816	492	48	85.80	84.20	78.40	0.00	159.51	159.53	76.96	82.57
2	12119	505	48	86.10	86.20	80.40	0.00	159.50	159.43	76.75	82.68
3	12066	503	48	84.60	85.20	79.80	0.00	159.41	159.64	76.84	82.80
4	12727	530	48	90.40	90.30	84.50	0.00	159.38	159.59	77.13	82.46
5	10018	417	48	72.20	72.20	66.40	0.00	159.37	159.42	76.68	82.74
6	9667	403	48	69.50	70.10	64.30	0.00	159.30	159.24	76.83	82.41
7	8795	366	48	66.60	64.00	58.20	0.00	159.72	159.54	76.42	83.12
8	10673	445	48	75.10	76.20	70.40	0.00	159.57	159.64	76.54	83.10
9	10415	434	48	75.20	74.90	69.10	0.00	159.65	159.51	76.70	82.81
10	11111	463	48	78.30	79.60	73.80	0.00	159.39	159.45	76.91	82.54
11	9352	390	48	67.90	67.90	62.10	0.00	159.34	159.31	76.74	82.57
12	9950	415	48	70.00	71.60	65.80	0.00	159.08	159.33	76.44	82.89
13	9803	408	48	70.70	70.80	65.00	0.00	159.03	159.08	76.35	82.73
14	9482	395	48	67.20	68.70	62.90	0.00	158.77	159.00	76.19	82.81
15	9191	383	48	67.10	66.80	61.00	0.00	158.81	158.77	76.08	82.69
16	9199	383	48	68.50	66.60	60.80	0.00	159.20	158.94	76.03	82.91
17	9297	387	48	67.90	67.00	61.20	0.00	159.37	159.27	76.07	83.20
18	9438	393	48	67.60	68.10	62.30	0.00	159.29	159.30	76.33	82.97
19	9877	412	48	71.70	71.20	65.40	0.00	159.37	159.40	76.58	82.82
20	9909	413	48	71.10	71.60	65.80	0.00	159.28	159.14	76.71	82.43
21	9785	408	48	69.50	71.10	65.30	0.00	158.96	158.94	76.85	82.09
22	9086	379	48	68.00	66.50	60.70	0.00	159.25	158.93	76.80	82.13
23				65.50	65.40	59.60	0.00	159.27	159.35	76.36	82.99
24				67.70	68.50	62.70	0.00	159.08	158.84	76.06	82.78
25				79.10	79.00	73.20	0.00	159.11	159.03	76.17	82.86
26				67.70	67.20	61.40	0.00	159.22	159.37	75.32	84.05
27				80.60	79.70	73.90	0.00	159.39	159.17	74.97	84.20
28				81.10	82.80	77.00	0.00	159.05	159.16	74.62	84.54
29				89.80	89.20	83.40	0.00	159.16	159.16	74.88	84.28
30

TOT	223776		1056
AVG	10172	424	48	73.88	73.88	68.10	0.00	159.27	159.26	76.32	82.94

MAX	12727			90.40	90.30	84.50	0.00	159.72	159.64	77.13	84.54
MIN	8795			65.50	64.00	58.20	0.00	158.77	158.77	74.62	82.09