The Water System Improvement Program (WSIP) includes 87 projects that will benefit every resident and business receiving water from the Hetch Hetchy Regional Water System. Because the system crosses three of the nation's most active earthquake faults, the WSIP is first and foremost a program that will enhance our system's seismic reliability to ensure a safe and reliable water system for 2.6 million customers in Alameda, Santa Clara, San Mateo, and San Francisco counties.
The following WSIP projects are currently in construction:
Alameda Creek Recapture Project
Recapture water released and bypassed at Calaveras Dam and Alameda Creek Diversion Dam and return it to the SFPUC water system.
Bioregional Habitat Restoration
Provide a coordinated and consolidated approach to compensate for habitat impacts that result from implementation of WSIP projects.
Calaveras Dam Replacement
Replace the existing, seismically unsafe dam by constructing a new dam located downstream and restore the reservoir water storage to its original capacity.
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