
San Francisco Public Utilities Commission, Harry Tracy Water Treatment Plant Long Term Improvements
The Harry Tracy Water Treatment Plant serves as the emergency back-up and supplementary water supply system for the entire San Francisco Peninsula. This project, with a construction value of $245 million, improves delivery reliability and provides seismic upgrades at this regional water treatment plant to achieve a sustained capacity of 140 million gallons per day (mgd) for at least 60 days, and to provide 140 mgd within 24 hours following a seismic event on the San Andreas Fault. The work included the addition of filters, upgrades to various systems, and seismic retrofits of critical process units.