1 Drought Conditions Update
Steven R. Ritchie
Assistant General Manager, Water
October 3, 2022
October 3, 2022 Reservoir Storage
Reservoir
Current
Storage1,2,3
Maximum
Storage4
Available
Capacity
Percent of
Maximum
Storage
Normal
Percent of
Maximum
S
torage5
(AF) (AF) (AF)
T
uolumne System
Hetch Hetchy 280,600 360,360 79,760 77.9% 79.0%
Cherry 243,300 273,345 30,045 89.0% -
Eleanor 18,480 27,100 8,620 68.2% -
Water Bank 252,198 570,000 317,802 44.2% 99.7%
Total Tuolumne Storage 794,578 1,230,805 436,227 64.6% - Local System
Calaveras 58,004 96,670 38,666 60.0% -
San Antonio 42,710 53,266 10,556 80.2% -
Crystal Springs 51,384 58,309 6,925 88.1% -
San Andreas 17,112 19,027 1,915 89.9% -
Pilarcitos 2,318 3,030 712 76.5% -
Total Local Storage 171,528 230,302 58,774 74.5% -
Other
California
Reservoirs
California Drought Monitor
Hetch Hetchy Precipitation – WY 2022
5 Upcountry 6-station Precipitation Index as of
September 30, 2022
Avg Annual Total: 36.68 inches
WY Total: 25.22 inches
Bay Area 7-station Precipitation Index
as of September 30, 2022
Avg Annual Total: 22.80 inches
WY Total: 24.10 inches
Upcountry Snowpack – WY 2022
National Precipition Forecast
Total Deliveries
Drought Tracker