Hetch Hetchy Water and Power reports as follows:

 

As the snow melts out, our release are correspondingly changing. Here are some short to medium term anticipated releases:

 

1)      Hetchy releases are at 700 cfs this afternoon. We anticipate releases to increase once the Reservoir fills and begins spilling, perhaps as high as 1500 cfs. Combined spill and valve releases will then decrease over the course of the week, dropping as low as 200 cfs as inflows peter out. The magnitude and timing of the recession are uncertain, and will depend on weather and the amount of snow still upcountry.

2)      Eleanor has filled and is being managed to maintain full storage. Releases will match inflows, currently ~300 cfs. I anticipate release to decline from 300 cfs in the coming weeks.

3)      Cherry lowering continues. We are currently releasing 2000 cfs, and anticipate this to continue until the afternoon of August 6

a.       August 6 to August 30 (end date tentative) we will be closing the face valves for some preliminary valve work. During this period releases from Cherry Valley Dam < 20 cfs

b.      After August 30, releases will increase back to 2000 cfs

4)      Kirkwood Powerhouse will continues spilling 700 cfs until inflows to Hetchy drop below 1500 cfs. We anticipate this to occur between July 23^rd and 31^st. As inflows recede, KPH spill will correspondingly drop.

5)      Holm Powerhouse will continue full generation (950 cfs) through Labor Day

 

For the next week:

 

	July 18 to 25
Hetchy Releases	200-1500 cfs
Eleanor Releases	100-300 cfs
Cherry Releases	2000 cfs
Kirkwood PH	300-700 cfs
Holm PH	950 cfs
Total	3550 – 5450 cfs