Wanapum Dam & Lake

June 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	15670	653	16	138.20	135.10	114.00	19.10	569.84	569.02	491.61	77.41
2	17162	715	16	152.10	146.50	123.90	20.70	570.61	570.42	492.30	78.12
3	18830	785	16	164.20	158.70	136.40	20.20	571.36	570.74	493.00	77.74
4	16743	698	16	121.10	142.70	121.40	19.30	568.39	569.26	492.11	77.15
5	15414	642	17	132.90	134.00	113.80	18.20	568.24	567.74	491.56	76.18
6	15649	652	17	142.00	135.30	114.70	18.60	569.16	568.30	491.49	76.81
7	13901	579	17	117.50	121.50	100.70	18.80	568.61	568.53	490.82	77.71
8	14023	584	17	123.80	122.90	101.90	19.10	568.72	569.01	491.01	78.00
9	15257	636	17	136.60	132.30	111.50	18.80	569.32	568.59	491.51	77.08
10	15806	659	19	124.80	137.40	117.30	18.10	567.57	567.60	491.60	76.00
11	12973	541	20	105.00	115.50	96.10	17.40	566.11	566.47	490.41	76.06
12	12263	511	18	106.20	110.80	92.00	16.80	565.45	565.76	490.06	75.70
13	11829	493	18	123.00	107.00	87.70	17.30	567.71	566.52	490.15	76.37
14	13556	565	17	110.90	119.90	100.20	17.80	566.45	567.06	490.73	76.33
15	12583	524	17	116.50	112.60	93.50	17.10	566.99	566.20	490.22	75.98
16	13444	560	18	123.30	119.30	99.80	17.50	567.54	566.79	490.64	76.15
17	13978	582	18	122.80	124.10	104.40	17.70	567.36	567.03	490.90	76.13
18	13137	547	18	116.50	116.90	97.30	17.60	567.29	566.82	490.61	76.21
19	13513	563	17	123.20	119.70	99.90	17.80	567.78	567.19	490.65	76.54
20	11601	483	16	97.20	104.50	84.60	17.90	566.76	567.34	489.83	77.51
21	10299	429	16	95.70	95.20	75.40	17.80	566.83	567.11	489.38	77.73
22	11206	467	17	103.90	101.50	82.10	17.40	567.18	566.55	489.79	76.76
23				119.70	115.30	96.00	17.30	567.80	566.45	490.53	75.92
24				107.30	116.70	96.80	18.00	566.47	567.39	490.36	77.03
25				114.20	112.20	92.70	17.50	566.76	566.73	489.99	76.74
26				115.30	117.60	97.50	18.10	566.43	567.59	490.44	77.15
27				106.00	102.90	83.60	17.40	566.86	566.54	489.45	77.09
28				103.70	100.70	81.50	17.20	567.27	566.35	489.85	76.50
29				95.10	103.90	84.40	17.50	566.04	566.67	489.75	76.92
30

TOT	308837		378
AVG	14038	585	17	119.27	120.09	100.04	18.07	567.69	567.51	490.72	76.79

MAX	18830			164.20	158.70	136.40	20.70	571.36	570.74	493.00	78.12
MIN	10299			95.10	95.20	75.40	16.80	565.45	565.76	489.38	75.70