castro valley sanitary district Effective Environmental Services Since 1939

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Latest Announcements

June 16, 2021

Magnolia Grove Receives CVSan's Green Neighbor Community Award!

Multi-family communities that are on the path to zero waste qualify for CVSan’s new Green Neighbor Community Recognition Program! 
June 09, 2021

CVSan’s Zero Waste Supervisor to Serve on SWANA Board of Directors

SWANA’s prominent and nationally acclaimed technical conferences and training programs cover all aspects of integrated municipal solid waste management.

June 09, 2021

Castro Valley Sanitary District’s List of Qualified Plumbing Contractors For the 2021/22 Lateral Replacement Grant Program

This is a call for any State of California licensed contractors interested in being listed as a CVSan Qualified Plumbing Contractor.
June 02, 2021

CVSan Commissions the First Commercial Sidestream Treatment System in the U.S. Pacific Coast Region 

Castro Valley Sanitary District (CVSan) in partnership with Oro Loma Sanitary District (OLSD) and Microvi have commissioned the first dewatered filtrate (sidestream) treatment system in the Pacific Coast Region of the United States. This project will aim to reduce nitrogen discharge to the San Francisco Bay by up to 8,000,000 pounds over 20 years. 

May 26, 2021

Chateau Andre Receives Green Neighbor Community Award!

CVSan has certified Chateau Andre as a Green Neighbor Community! Congratulations to the Chateau Andre multi-family community! 



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21040 Marshall Street
Castro Valley, CA 94546

Monday - Friday
7:00 a.m. - 11:00 a.m.
12:00 p.m. - 4:00 p.m.

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Office Hours: (510) 537-0757
After Hours: (510) 506-5821