Central Marin Sanitation Agency
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CENTRAL MARIN SANITATION AGENCY

CMSA is a regional agency that provides wastewater services throughout central Marin County to protect public health and the environment.

 

Business Hours:

7:00am - 4:00pm  Monday - Thursday
7:00am - 3:00pm  Friday

WET WEATHER IMPROVEMENT PROGRAM

The Wet Weather Improvement Project is complete. Find out more about this $50 million series of projects to accomodate high flows that occur during rainstorms.

Click Here to view and download monthly Wet Weather Improvement Project updates and check the live webcam.

SAV-R-BAY

Come see the newly launched Sav-R-Bay website, where you can find helpful, up-to-date information about protecting the environment through proper wastewater collection, treatment, and disposal.

Concerns About Water Pollution?
To Report Spills, a Water Polluter or Odor Problems
Call 1-800-SAV-R-BAY (1-800-728-7229)

Pharmacautical Take Back Program

  Participating Pharmacies

What's New

Contact Us:

1301 Andersen Drive,
San Rafael, CA 94901

Phone: 415-459-1455
Fax: 415-459-3971

Driving Directions

Do you have concerns about odors?

Odor Alerts and Information
Odor Control Program & Reporting form

Please Call Us During Business Hours Mon-Fri 415-459-1455
Request the Plant Manager

Non-Business Hours: 415-459-1455 ext 2
Request the On-Duty Operator

CMSA AT PUBLIC OUTREACH EVENTS

CMSA participates in various public education outreach events throughout the year. To view the various events, click below.

Click here for a full list of events

Pictures of the Marin County Fair

CMSA