Central Marin Sanitation Agency

See how we:

Our staff consists of certified wastewater operators, maintenance specialists, laboratory technicians, and engineers whose sole mission is to safeguard the public health of Marin County residents and protect the environment by providing excellent wastewater treatment and disposal services.

Enforce Stormwater Requirements

Under an agreement with the City of San Rafael, CMSA staff may issue City citations for violation of the City’s Stormwater Ordinance. The agreement specifies that CMSA responsibility/authority is limited to events related to facilities that CMSA is regulating with sanitary wastewater permits.