Castro Valley Sanitary District | Effective environmental services since 1939

Click here to view upcoming and past board agendas and minutes.

CVSan’s Used Oil Filter Exchange Program, September 12^th – October 21^st

CVSan Wastewater Department personnel prepare early for wet weather.

Learn more about CVSan's Less Than Weekly Pilot.

CVSan Board meetings are open to the public. Please join us.

Learn what you need to know about CVSan's Wastewater services here

View CVSan's Sanitary Sewer Management Plan (SSMP) here

View info on the Lateral Replacement Grant Program here

Click here to learn about what goes in your carts.

Do you have a customer service request? Click here to complete a call back form.

>> WM Services on a normal schedule.

>> Repair your broken electronics, toys, bikes & more!

>> Field Trip Registration is Now Open.

>> Program begins on September 12th

>> WM Services on a normal schedule.