castro valley sanitary district Effective Environmental Services Since 1939

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Latest Announcements

November 22, 2021

Thanksgiving Holiday

  • CVSan Closed 11/25 and 11/26
  • ACI Closed 11/25 (Thursday customers will be serviced on Friday)
  • ACI Open 11/26 (Friday customers will be serviced on Saturday)
November 16, 2021

Operations and Engineering Building Neighborhood Meeting

CVSan invites you to attend an upcoming virtual Operations and Engineering Building Neighborhood Meeting about the new Operations and Engineering building. The meeting will be held on Wednesday, December 15, 2021, from 6:00 to 6:30 pm.

October 27, 2021

New Law Requires Easier-to-Find Disposal Labeling for Wipes

CVSan is excited to announce that Assembly Bill 818 has been signed into law. This new law requires all packaging for diaper wipes, cleaning wipes, and cosmetic wipes to display clear “Do Not Flush” warnings.

October 21, 2021

Textile Collection Week Results!

A  total of 12,140 pounds of textiles was collected and diverted from the landfill! 
October 15, 2021

Join the Community Advisory Committee!

CVSan's Community Advisory Committee (CAC) represents the community's interests by providing a voice directly to the CVSan Board of Directors (Board). 

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Get In Touch

 
If this is a sewer emergency, please call us!
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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