The Clean Water Program is a comprehensive plan to upgrade San Mateo’s wastewater collection system and wastewater treatment plant to provide reliable service for years to come.
The $1 billion initiative launched in 2015 to modernize the San Mateo sewer system, a response to a Cease and Desist Order from the State of California mandating a sewer system upgrade to eliminate sewer overflows from entering the San Francisco Bay.
The Clean Water Program is intended to meet the following goals: to replace the aging pipes and facilities that have reached or are nearing their lifespan of 50-60 years; to meet current and future regulatory requirements and increase system capacity during heavy rains; and to align with long-term sustainability goals. Improvements to the wastewater treatment plant and sewer collection system will protect public health and the health of San Francisco Bay.
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