Rock Island Dam & Reservoir

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	6773	282	0	101.02	105.10	102.06	3.03	612.50	612.05	572.84	39.21
2	5439	227	0	75.53	76.73	76.73	0.00	611.51	611.82	570.61	41.21
3	5480	228	0	71.21	74.20	74.20	0.00	611.37	611.99	569.63	42.36
4	4495	187	0	59.63	61.80	61.80	0.00	611.08	611.72	568.77	42.95
5	3668	153	0	50.57	49.18	49.18	0.00	611.59	611.77	568.07	43.70
6	3819	159	0	52.02	52.30	52.30	0.00	611.86	611.74	568.80	42.94
7	5196	216	0	71.06	74.00	72.63	1.38	611.07	611.83	569.00	42.83
8	4180	174	0	54.50	54.18	54.18	0.00	611.33	611.72	567.48	44.24
9	3848	160	0	46.13	48.50	48.50	0.00	610.67	611.55	564.96	46.59
10	4341	181	0	56.52	53.02	53.02	0.00	612.03	612.13	564.58	47.55
11	4310	180	0	56.01	56.60	56.60	0.00	611.62	611.73	566.12	45.61
12	4317	180	0	54.62	56.09	55.63	0.46	611.07	612.03	566.62	45.41
13	3669	153	0	47.75	47.60	47.57	0.03	611.31	611.74	566.87	44.87
14	4110	171	0	52.89	51.65	51.65	0.00	612.16	612.15	566.14	46.01
15	4328	180	0	54.99	55.46	55.46	0.00	611.68	611.78	566.96	44.82
16	5536	231	0	70.98	72.98	72.90	0.09	611.11	611.90	568.07	43.83
17	4792	200	0	64.35	64.32	64.23	0.08	611.14	611.78	568.40	43.38
18	3487	145	0	45.95	46.14	46.14	0.00	610.91	611.60	567.86	43.74
19	3218	134	0	43.35	41.70	41.70	0.00	612.04	611.89	567.36	44.53
20	4496	187	0	56.77	58.56	58.56	0.00	611.44	611.73	567.88	43.85
21				66.77	65.06	65.06	0.00	611.11	612.02	568.47	43.55
22				64.51	67.22	67.22	0.00	610.94	611.84	569.34	42.50
23				72.12	72.98	72.98	0.00	611.46	611.83	570.37	41.46
24				70.24	68.20	72.33	0.00	610.91	611.74	569.48	42.26
25				56.69	56.65	56.65	0.00	610.84	611.72	568.51	43.21
26				52.86	52.64	52.64	0.00	611.37	611.74	568.14	43.60
27				63.61	64.25	60.73	3.52	611.41	612.02	567.30	44.72
28
29
30

TOT	89502		0
AVG	4475	186	0	60.47	61.00	60.84	0.32	611.39	611.84	568.10	43.74

MAX	6773			101.02	105.10	102.06	3.52	612.50	612.15	572.84	47.55
MIN	3218			43.35	41.70	41.70	0.00	610.67	611.55	564.58	39.21