SAN FRANCISCO — Together with San Mateo Board of Supervisors Dave Pine and Peninsula water agencies, the San Francisco Public Utilities Commission (SFPUC) stood on top of a new 11 million gallon treated water reservoir to celebrate the completion of a $278 million project improving the seismic and operational reliability of the Harry Tracy Water Treatment Plant, according to a press release.

The treatment plant, located in San Bruno, California, is responsible for treating drinking water for over one million customers in the counties of San Mateo and San Francisco, stated the release.

The largest part of the construction was completing the new treated water reservoir, continued the release.

The project is part of SFPUC’s $4.8 billion Water System Improvement Program, which contains 83 projects across seven counties designed to enhance seismic and water supply reliability for 2.6 million people within the Bay Area, added the release.

"The goal of the project is to provide 140 million gallons of water per day, for 60 days, within 24 hours of a major earthquake," said Daniel L. Wade, director of the Water System Improvement Program. "These plant upgrades, including the new treated water reservoir, have been seismically designed and reinforced to withstand a magnitude 7.9 earthquake on the nearby San Andreas Fault." 

The Water System Improvement Program and the 24/7 operations and maintenance of the Hetch Hetchy Regional Water System are both funded through retail and wholesale customer rates, noted the release.