Clean Water Program

The Clean Water Program brings the City’s aging wastewater collection and treatment system into the modern age. This vital infrastructure is nearing the end of its useful life, even though nearly 150,000 people in San Mateo, Crystal Springs County Sanitation District, a portion of unincorporated San Mateo County, and the southern portion of the town of Hillsborough rely on it.

The wastewater treatment plant – jointly owned by the cities of San Mateo and Foster City/Estero Municipal Improvement District – will be upgraded and expanded to incorporate modern treatment technology and greater capacity.

The CWP is a comprehensive, visionary plan that aligns with sustainability goals to meet current and future regulatory requirements and increase system capacity during storms.

Join us for this unprecedented effort:  

Clean Water Program