1 Water Supply Conditions Update
Steven R. Ritchie
Assistant General Manager, Water
October 14, 2024
October 14, 2024 Reservoir Storage
2 Reservoir
Current
Storage1,2,3
Maximum
Storage4
Available
Capacity
Percent of
Maximum
Storage
Normal
Percent of
Maximum
Storage5
(AF) (AF) (AF)
Tuolumne System
Hetch Hetchy 275,500 360,360 84,860 76.5% 76.3%
Cherry 244,300 273,345 29,045 89.4% -
Eleanor 16,300 27,100 10,800 60.1% -
Water Bank 570,000 570,000 0 100.0% 98.3%
Total Tuolumne Storage 1,106,100 1,230,805 124,705 89.9% - Local System
Calaveras 86,247 96,670 10,423 89.2% -
San Antonio 48,784 53,266 4,482 91.6% -
Crystal Springs 52,106 68,953 16,847 75.6% -
San Andreas 12,029 18,675 6,646 64.4% -
Pilarcitos 2,282 3,125 843 73.0% -
Total Local Storage 201,448 240,689 39,241 83.7% -
Total System Storage 1,307,548 1,471,494 163,946 88.9% 78.6% Total without water bank 737,548 901,494 163,946 81.8% -
Other
California
Reservoirs
3 California Drought Monitor
4 Hetch Hetchy Precipitation
5 Upcountry 6-station Precipitation Index as of
October 14, 2024
12-Month Median Total: 30.92 inches
Current Year Total: 0.00 inches
6 Annual Comparison:
Bay Area 7-station Precipitation Index
as of October 14, 2024
12-Month Median Total: 23.35 inches
Current Year Total: 0.01 inches
7 Annual Comparison:
Water Available to the City
8 9
National Precipitation Forecast
Total Deliveries