1 San Francisco Public Utilities CommissionWater Supply Conditions UpdateSteven R. RitchieAssistant General Manager, WaterFebruary 2, 2026 February 2, 2026 Reservoir Storage
2 ReservoirCurrent Storage1,2,3Maximum Storage4Available CapacityPercent of Maximum StorageNormal Percent of Maximum Storage5(AF) (AF) (AF)Tuolumne SystemHetch Hetchy 322,700 360,360 37,660 89.5%68.8%Cherry 244,800 273,345 28,545 89.6% -Eleanor 22,470 27,100 4,630 82.9% -Water Bank 567,381 570,000 2,619 99.5%98.0%Total Tuolumne Storage 1,157,351 1,230,805 73,454 94.0%-Local SystemCalaveras 60,003 96,670 36,667 62.1% -San Antonio 46,567 53,266 6,699 87.4% -Crystal Springs 51,982 68,953 16,971 75.4% -San Andreas 12,840 18,675 5,835 68.8% -Pilarcitos 1,781 3,125 1,344 57.0% -Total Local Storage 173,173 240,689 67,516 71.9%-Total System Storage1,330,524 1,471,494 140,97090.4% 80.2%Total without water bank763,143 901,494 138,35184.7%- Other California Reservoirs3
California Drought Monitor
4 Hetch Hetchy Precipitation
5 Upcountry 6-station Precipitation Index as of February 1, 202612-Month Median Total: 30.92 inchesCurrent Year Total: 17.85 inches6Annual Comparison:
Bay Area 7-station Precipitation Index as of February 1, 202612-Month Median Total: 23.35 inchesCurrent Year Total: 15.68 inches7Annual Comparison:
Upcountry Snowpack
8 Water Available to the City
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California Precipitation Forecast
Total Deliveries
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