CMSA is a regional, cooperative venture that was created to provide improved wastewater treatment, cost-effectively. By working together through CMSA, the members lower costs for their customers.

In addition to treatment, CMSA also provides other regional services that further improve quality and lower costs. These services include the following.

• Pump Station Maintenance for Sanitary District No. 2 (Corte Madera). Operation of the pump station is monitored 24 hours a day by a computerized Supervisor Control and Data Acquisition System (SCADA).
• Vactor Disposal. CMSA member agencies clean their sanitary lines using specially designed trucks that are capable of cleaning the lines with high-pressure water and then vacuuming the collected debris into a storage tank on the truck. The vacuumed debris is then hauled to CSMA's treatment plant and off-loaded into a specially designed receiving station. The liquid is discharged into the plant influent flow. The remaining rocks and grit are loaded into trash bin and hauled off to a landfill site.

• Regional Studies. CMSA works cooperatively and closely with many local agenies to provide improved and more cost effective services to the public. Below are listed just a few examples:
  • Pollution Prevention and Industrial Waste Inspections. CMSA provides contract pollution prevention and Industrial waste inspections for Las Gallinas Valley Sanitary District. This project helps protect the environment, by providing high quality services at a reasonable cost.
  • CMSA also provides contract Fats, Oil and Grease (FOG) services for the City of San Rafael, Las Gallinas Valley Sanitary District and Sanitary District No. 1 of Marin County. By working collaboratively, this program provides quality services, carried out by specialized experts and delivers those services cost effectively.
  • CMSA is the lead agency in the Treatment Agencies of Marin County's Public Eduation Program. By working together, CMSA and its partners improve services and lower costs to the public.