John Day & Lake Umatilla

September 2021

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	18844	785	46	104.30	104.30	102.20	0.90	263.82	263.71	159.68	104.03
2	17174	716	48	113.50	95.50	93.20	1.00	264.53	263.95	160.00	103.95
3	16816	701	47	108.50	92.90	90.60	1.00	265.13	264.76	160.00	104.76
4	14795	616	48	86.70	81.40	79.40	0.90	265.33	265.17	159.95	105.22
5	14508	605	47	85.20	80.00	77.60	0.90	265.53	265.34	159.83	105.51
6	13638	568	47	72.70	75.40	73.20	1.00	265.43	265.30	160.18	105.12
7	14426	601	47	89.90	79.40	77.40	1.00	265.83	265.58	160.28	105.30
8	9045	377	21	119.50	106.90	103.80	1.10	266.03	266.02	160.42	105.60
9	17755	740	47	94.30	96.90	94.60	0.90	265.93	265.97	160.19	105.78
10	13341	556	46	62.70	73.10	71.30	0.80	265.53	265.72	160.23	105.49
11	12241	510	45	65.00	67.70	65.50	1.00	265.43	265.46	159.94	105.52
12	11615	484	45	59.30	64.50	62.30	0.90	265.22	265.38	159.87	105.51
13	15236	635	46	94.00	83.50	81.40	0.90	265.63	265.50	160.00	105.50
14	15107	629	46	77.50	82.80	80.70	0.90	265.42	265.51	159.97	105.54
15	12212	509	46	70.30	67.60	65.40	1.00	265.53	265.42	159.81	105.61
16	13210	550	48	75.30	72.70	70.40	0.90	265.63	265.63	159.66	105.97
17	14345	598	47	83.90	78.70	76.60	0.90	265.83	265.56	159.91	105.65
18	13955	581	48	69.00	76.80	74.70	0.90	265.53	265.66	160.14	105.52
19	12215	509	46	67.10	67.10	65.20	0.80	265.53	265.53	159.81	105.72
20	15760	657	45	91.40	86.30	84.20	0.90	265.73	265.61	160.11	105.50
21				79.30	84.50	82.70	0.90	265.53	265.61	159.85	105.76
22				80.50	80.60	78.50	0.90	265.53	265.36	160.10	105.26
23				84.20	84.20	82.10	0.90	265.53	265.40	159.91	105.49
24				104.30	99.10	97.20	0.90	265.73	265.71	160.11	105.60
25				83.50	88.70	86.60	0.90	265.53	265.71	159.63	106.08
26				79.30	74.10	72.20	0.90	265.73	265.63	159.46	106.17
27				75.50	80.60	78.50	0.90	265.53	265.56	159.64	105.92
28
29
30

TOT	286240		905
AVG	14312	596	45	84.32	82.42	80.28	0.92	265.47	265.40	159.95	105.45

MAX	18844			119.50	106.90	103.80	1.10	266.03	266.02	160.42	106.17
MIN	9045			59.30	64.50	62.30	0.80	263.82	263.71	159.46	103.95