Bonneville Dam & Lake on Columbia River

June 2022

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	Project Average Tailwater	2nd Powerhouse Total MWh	2nd Powerhouse Flow kcfs
1	15537	647	96	344.90	345.90	185.40	148.10	71.90	72.30	25.30	47.00	24.60	7507	91.00
2	15549	648	96	353.70	347.70	185.60	149.70	72.70	72.40	25.50	46.90	24.70	7497	90.80
3	15404	642	96	347.20	346.20	183.70	150.10	72.70	72.40	25.30	47.10	24.60	7221	87.30
4	16371	682	96	353.30	361.30	198.70	150.20	72.00	72.40	25.90	46.50	25.20	7454	91.30
5	16768	699	96	380.80	374.80	207.10	155.30	72.60	72.50	26.60	45.90	25.90	7960	99.60
6	14628	610	96	401.60	390.60	185.60	192.60	73.70	72.30	27.60	44.70	26.80	7027	90.50
7	15179	632	96	372.40	378.40	189.10	176.90	73.10	72.40	27.00	45.40	26.30	7234	91.20
8	15024	626	96	402.50	396.50	187.10	197.00	73.70	73.30	27.70	45.60	26.90	7023	88.60
9	15179	632	96	416.70	417.70	191.40	213.90	73.60	73.80	28.70	45.10	27.90	7065	90.40
10	15379	641	96	439.90	432.90	197.00	223.50	74.50	74.10	29.60	44.50	28.70	6921	90.30
11	14661	611	96	432.80	441.80	194.40	235.10	73.40	73.50	30.30	43.20	29.40	6420	86.70
12	14564	607	96	446.20	449.20	197.40	239.30	73.10	73.20	30.80	42.40	30.00	6445	88.80
13	13900	579	96	453.90	449.90	189.30	248.20	73.70	73.20	31.00	42.20	30.20	6254	87.10
14	14416	601	96	442.50	436.50	189.70	234.40	74.20	74.00	30.50	43.50	29.70	6479	87.10
15	14744	614	96	436.20	442.20	193.20	236.60	73.70	74.30	30.70	43.60	29.80	6614	88.50
16	14175	591	96	437.90	444.90	192.00	240.50	72.80	73.10	30.80	42.30	29.90	6557	90.80
17	14192	591	96	446.20	434.20	189.70	232.10	74.10	73.20	30.30	42.90	29.50	6412	87.60
18	14225	593	96	435.20	440.20	189.00	238.80	73.40	73.50	30.30	43.20	29.50	6335	86.20
19	14246	594	96	441.90	440.90	190.20	238.30	73.60	73.20	30.30	42.90	29.40	6424	87.80
20	15077	628	96	431.10	428.10	195.10	220.60	74.00	73.90	29.70	44.20	28.90	6790	89.80
21	14972	624	96	435.90	428.90	194.40	222.20	74.60	73.80	29.60	44.20	28.80	6908	91.70
22	15479	645	96	411.00	415.00	195.50	207.10	74.20	74.00	28.90	45.10	28.10	6969	89.60
23	15798	658	96	407.60	407.60	196.60	198.60	74.20	74.10	28.50	45.60	27.70	7029	88.90
24	15805	659	96	407.30	410.30	196.90	201.00	74.00	74.10	28.40	45.70	27.60	7036	89.30
25				408.40	405.40	196.60	196.40	74.20	73.80	28.10	45.70	27.40		89.30
26				404.20	405.20	196.40	196.40	74.00	73.80	28.10	45.70	27.30		88.80
27				401.20	395.20	191.00	191.70	74.70	74.70	27.70	47.00	27.00		81.70
28				394.40	395.40	191.10	191.90	74.70	74.70	27.70	47.00	27.00		81.20
29				379.20	377.20	193.50	171.30	74.90	74.50	27.00	47.50	26.20		82.80
30				365.60	367.60	209.80	145.40	74.30	74.60	26.40	48.20	25.80		98.30

TOT	361272		2304
AVG	15053	627	96	407.72	406.92	193.08	201.44	73.68	73.50	28.48	45.03	27.69	6899	89.10

MAX	16768			453.90	449.90	209.80	248.20	74.90	74.70	31.00	48.20	30.20	7960	99.60
MIN	13900			344.90	345.90	183.70	145.40	71.90	72.30	25.30	42.20	24.60	6254	81.20