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San José-Santa Clara Regional Wastewater Facility

Every day, 365 days a year, the San José-Santa Clara Regional Wastewater Facility cleans Silicon Valley’s wastewater to very high national standards, protecting public health and the environment, and supporting the economy. Using a process that simulates the way nature cleans water, the Facility treats an average of 110 million gallons of wastewater per day (mgd), with a capacity of up to 167 mgd.

The largest tertiary treatment plant in the western United States, the Facility serves 1.4 million residents and over 17,000 businesses in an eight-city area. Highly trained Facility staff ensure that all treated wastewater meets strict regulations.

A leader in wastewater innovation, the Facility is integrating revolutionary new treatment technologies into its processes and rebuilding aging infrastructure through its Capital Improvement Program. This modernization will not only strengthen the Facility’s ability to provide vital services, but will also result in greater sustainability.