castro valley sanitary district Effective Environmental Services Since 1939

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Latest Announcements

March 01, 2021

CVSan Holds Zero Waste Week for the Community

To help residents learn more about how to select their path to zero waste, Castro Valley Sanitary District (CVSan) presented its Sixth Annual Zero Waste Week during the first week of February. Participants joined community events that were held each day, Monday through Saturday.

February 08, 2021

President’s Day Holiday

Castro Valley Sanitary District (CVSan) offices will be closed on President’s Day, Monday, February 15th.
January 28, 2021

Prepare for the Rainy Season with a BPS

Are you prepared for the rainy season? Avoid expensive accidents by preparing your property today and protecting your home! One action that can help is to install a backflow prevention system (BPS).
January 28, 2021

Zero Waste Week

CVSan’s 2021 Zero Waste Week will take place in the first week of February.  

 

January 27, 2021

Earn A Coupon for A New Motor Oil Filter

Do you change your own oil and live in a single-family home? From February 8th to March 19th, you can participate in CVSan’s Used Motor Oil Filter Exchange Program to receive a coupon for a new oil filter.

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Address

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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Phone

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