Central Marin Sanitation Agency

CMSA

CENTRAL MARIN SANITATION AGENCY

CMSA provides wastewater treatment, disposal and related environmental services to protect public health and enhance environmental quality within its service area comprised of Sanitary Districts Number 1 and 2 of Marin County and the San Rafael Sanitation District.

NOTICE: The May Bioassay is scheduled for Monday, May 14th through Friday, May 18th.

Business Hours:

8:00am - 4:00pm Monday - Thursday
8:00am - 3:00pm Friday

CMSA will be closed on Monday, May 28 in honor of the Memorial Day holiday.

Contact Us:

1301 Andersen Drive
San Rafael, CA 94901

Phone: 415-459-1455

Alternate Phone: 415-459-8846
Fax: 415-459-3971

Driving Directions

THERMOMETER EXCHANGE PROGRAM

Do you have an old mercury-containing thermometer? Bring it to our office and exchange it for a new, digital thermometer. Simply talk to someone in our front office, and we will be happy to exchange your thermomether for an environmentally-friendly, safe one.

SAV-R-BAY

Come visit the 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)

Click Here for a list of Pharmacautical Take Back Participating Pharmacies
Wastes From Grease Traps and Portable Toilets