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Water Quality
Hands washing under running waterMonitoring Our Drinking Water
Water from various locations in the distribution system is analyzed daily by certified Municipal Water System staff, and weekly by a private, state-certified laboratory. Additionally, the Santa Clara Valley Water District and San Francisco Public Utilities Commission perform their own water quality analyses of the source and treated water. Over 170 constituents are analyzed each year to ensure that drinking water standards set by the United States Environmental Protection Agency and California Department of Public Health are met.

Annual Water Quality Report
The Municipal Water System publishes annual reports to make the results of these tests available to the public. Download the current Water Quality Report.

For additional information regarding water quality, please contact a Water Quality Engineer at (408) 277-3671.