Uploaded March 2025 | Updated September 2026, 2 weeks ago
The SFPUC uses several different sources of water supply to make sure you have some of the best water in the country whenever you need it. Our sources of supply include the Hetch Hetchy Reservoir in the Sierra Nevada, Calaveras and San Antonio Reservoirs in the East Bay, and Pilarcitos, San Andreas, and Crystal Springs Reservoirs on the Peninsula.
The SFPUC uses several different sources of water supply to make sure you have some of the best water in the country whenever you need it. Our sources of supply include the Hetch Hetchy Reservoir in the Sierra Nevada, Calaveras and San Antonio Reservoirs in the East Bay, and Pilarcitos, San Andreas, and Crystal Springs Reservoirs on the Peninsula.
