The Marin Municipal Water District is the first municipal water district in California. Today, we serve more than 191,000 people in central and southern Marin.
It is the goal of the Sewerage Agency of Southern Marin (SASM) to operate, maintain, and manage the SASM Wastewater Treatment, Reclamation, and Disposal Facilities in an efficient, cost-effective, and well-planned manner in order to protect our water environment.