Central Marin Sanitation Agency

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Home > About Us > Service Area

The members
of CMSA are:

  • San Rafael Sanitation District
  • Sanitary District No. 1 of Marin County
  • Sanitary District No. 2 of Marin County
  • The City of Larkspur

Central Marin Sanitation Agency provides wastewater treatment for special districts and municipalities in the San Rafael and Ross Valley areas of central Marin County, California. These include: San Rafael Sanitation District, Sanitary District No. 1 of Marin County, Sanitary District No. 2 of Marin County, and the City of Larkspur.
Service area map click map to see large version
Service area map mouse-over a colored area for information

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