1 San Francisco Public Utilities Commission
Water Supply Conditions Update
Steven R. Ritchie
Assistant General Manager, Water
November 3, 2025
November 3, 2025, Reservoir Storage
2 Reservoir
Current
Storage1,2,3
Maximum
Storage3,4
Available
Capacity
Percent of
Maximum
Storage
Normal
Percent of
Maximum
Storage5
(AF) (AF) (AF)
Tuolumne System
Hetch Hetchy 266,780 340,830 74,050 78.3% 77.4%
Cherry 253,600 268,810 15,210 94.3% -
Eleanor 15,290 21,495 6,205 71.1% -
Water Bank 566,075 570,000 3,925 99.3% 97.8%
Total Tuolumne Storage 1,101,745 1,201,135 99,390 91.7% - Local System
Calaveras 85,877 96,670 10,793 88.8% -
San Antonio 49,119 53,266 4,147 92.2% -
Crystal Springs 48,758 58,309 9,550 83.6% -
San Andreas 15,160 19,027 3,867 79.7% -
Pilarcitos 2,550 3,030 480 84.2% -
Total Local Storage 201,465 230,302 28,837 87.5% -
Total System Storage 1,303,210 1,431,437 128,227 91.0% 81.0% Total without water bank 737,135 861,437 124,302 85.6% -
Other
California
Reservoirs
3 California Drought Monitor
4 Hetch Hetchy Precipitation
5 Upcountry 6-station Precipitation Index as of
November 2, 2025
12-Month Median Total: 30.92 inches
Current Year Total: 2.04 inches
6 Annual Comparison:
Bay Area 7-station Precipitation Index
as of November 2, 2025
12-Month Median Total: 23.35 inches
Current Year Total: 2.47 inches
7 Annual Comparison:
Upcountry Snowpack
8 Water Available to the City
9 10
California Precipitation Forecast
11 Upcountry Precipitation Forecast
Total Deliveries
12