Learn More About Who We Are And What We Do

Marin’s 11 cities and towns, the County of Marin and the Marin County Flood Control and Water Conservation District began addressing stormwater pollution in the early 90’s. In 1993 they created the Marin County Stormwater Pollution Prevention Program (MCSTOPPP). In 2021 the name was updated to the Marin Countywide Stormwater Pollution Prevention Program to better reflect our program and the member agencies we represent. MCSTOPPP’s goals are to:

  • Prevent stormwater pollution
  • Protect and enhance water quality in creeks and wetlands
  • Preserve beneficial uses of local waterways
  • Comply with State and Federal regulations

Each MCSTOPPP member agency implements a local stormwater pollution prevention program and funds the countywide MCSTOPPP, which provides for the coordination and consistency of approaches between the local stormwater programs.

What We Do

Our countywide MCSTOPPP staff implement permit compliance tasks and track stormwater regulations on behalf of the member agencies. We also document local and countywide permit compliance efforts in annual reports to the San Francisco Bay Regional Water Quality Control Board. The annual reports include information on illegal discharge detection and elimination, street and storm drain cleaning, municipal and creek maintenance, stormwater and creek protection controls for development projects, business inspections, and public outreach, education and participation. In addition, we provide technical assistance to member agencies and the public and implement a countywide outreach and education program. The countywide MCSTOPPP team are listed below.

Title Name / Email Phone
Program Manager Rob Carson (415) 473-2745
Engineering Assistant Howard Bunce (415) 473-3748
Engineering Technician III Will Stockard (415) 473-6583


We are administered by the Marin County Flood Control and Water Conservation District and staffed by Marin County Department of Public Works employees. The Marin General Services Authority provides budgetary and programmatic oversight. We work closely with the community receiving review and advice from a Citizen’s Advisory Committee (CAC).

Finally, program objectives and implementation are reviewed on a regular basis at our monthly Agency Staff Committee (Local Municipal Stormwater Coordinator) meetings.

For more information, please contact the Marin Countywide Stormwater Pollution Prevention Program at:
P.O. Box 4186, San Rafael, CA 94913-4186
Phone: (415) 473-6528
Fax: (415) 473-7221