MCSTOPPP: Stormwater Program

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). 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.


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.


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 bi-monthly Agency Staff Committee (Local Municipal Stormwater Coordinator) meetings.

General Public and Schools – Resources for the residents, teachers and students of Marin County.

Construction Projects – Information and best practices for individuals engaged in construction projects.

Development Projects – Permit, best practices, and information for planning projects with new and redevelopment post construction stormwater treatment facilities

Businesses – A listing of best management practices for Marin County businesses including horse boarding facilities and ownership.

Creeks and Watersheds – Learn more about how you can protect Marin’s creeks and watersheds.

Duxbury Reef ASBS – Information on special protections of water quality and events at Agate Beach and Duxbury Reef in Bolinas, an area of special biological significance

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