See how we:

• Use Advanced Technology
• Conduct Careful Testing
• Follow Strict Regulations
• Undertake Continuous Upgrades
• Maintain Certified Green Business Practices
• Carry Out Pollution Prevention
• Enforce Stormwater Requirements
• Maintain Stormwater Pollution Prevention Plan
• Carry Out Laboratory Monitoring

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.

Follow Strict Regulations

The National Pollutant Discharge Elimination System (NPDES) is a federal permit program under the Clean Water Act that is administered in the Bay Area by the San Francisco Bay Regional Water Quality Control Board, a part of the California Environmental Protection Agency.

An important element of CMSA's NPDES permit is a requirement for two programs to regulate discharges into the sanitary sewers, a Pretreatment Program and a Pollution Prevention Program. Other important CMSA source control activities are regulation of septic tank, portable toilet, and grease trap wastes trucked to CMSA, as well as regulation of contaminated groundwater discharged to the treatment plant. CMSA staff also participate in efforts to prevent pollution of storm water.