castro valley sanitary district Effective Environmental Services Since 1939

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Latest Announcements

January 11, 2021

Martin Luther King Jr. Day Holiday

Castro Valley Sanitary District (CVSan) offices will be closed on Martin Luther King Jr. Day, Monday, January 18th.  Please call (510) 506-5821 for sewer emergencies.  For information regarding CVSan services and programs, visit www.cvsan.org.

January 04, 2021

Keeping Services Flowing

CVSan wants its customers to know that WE ARE ALWAYS ON! Power loss at any of CVSan’s eight pump stations could lead to a dangerous sanitary sewer overflow. 

January 01, 2021

Congratulations to CVSan's General Manager

Congratulations to CVSan's General Manager Roland Williams, who has joined the Baywood Court Retirement Community Board of Directors. 
December 11, 2020

Christmas and New Year's Holiday

Castro Valley Sanitary District (CVSan) offices will be closed Thursday, December 24th, Friday, December 25th, Thursday, December 31st, and Friday, January 1st in observance of the Christmas and New Year’s Day holidays.
November 18, 2020

CVSan 2021 Calendar and 2019/20 Annual Report

Be on the lookout for the CVSan 2021 Calendar and 2019/20 Annual Report arriving soon by mail.
This edition features CVSan’s most valuable asset, our staff. 

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Clothing, Toys and Crafts

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Get In Touch

 
We will get in touch as soon as we can
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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