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Sunol Valley Water Treatment Plant Ozonation Project


In recent years, the San Francisco Public Utilities Commission’s Sunol Valley Water Treatment Plant (SVWTP) has experienced more frequent taste and odor (T&O) events from seasonal algal blooms than had occurred historically. Algae blooms can occur at any time, but large blooms tend to occur in the Spring and Fall due to nutrient availability, temperature, and sunlight. This project’s objective is to install ozone treatment facilities as a long-term solution to control T&O events encountered in the raw water supply from both the San Antonio and Calaveras Reservoir sources. 

Aerial view of Sunol Valley Water Treatment Plant

  • Construction Start: 2024
  • Construction End: 2028
  • Project Phase: Bid & Award