Pile Driving to Begin on San Mateo's
Wastewater Treatment Plant Expansion

The upgrade of our wastewater treatment plant on Detroit Drive is moving into Phase 2, which means a heavy construction period. Tune in for a Virtual Community Meeting on June 11 at 6 p.m. to hear about what Phase 2 means in your community. 

Later this month, the project will begin a critical phase of necessary pile driving. The plant needs about 2,000 piles for its foundation and we want the community to know the construction details, hours and the efforts we’re making to mitigate the impact on our neighbors.  

Virtual Community Meeting on Thursday, June 11 at 6 p.m. 

Join the Virtual Community Meeting on Zoom

• Zoom meeting ID: 849 8211 2460
• Password: 419414

The presentation starts at 6 p.m. followed by a live Q&A with project planners and construction leads. Visit the Clean Water Program website for updates.  

The Clean Water Program is a comprehensive plan to upgrade San Mateo's aging wastewater collection and treatment system with advanced infrastructure. These improvements will provide reliable services for years to come to several communities in the San Francisco Bay area, including the cities of San Mateo, Foster City, and portions of Hillsborough, Belmont, Crystal Springs County Sanitation District, and the County of San Mateo. 

Expansion of the wastewater treatment plant at 2150 Detroit Drive is the largest component of the nearly $1 billion Clean Water Program, and the most significant rehabilitation work executed at the plant since the 1970s. Once completed, the expanded plant will produce high-quality treated water that will protect human health and the environment while meeting water quality regulations. Improvements will benefit the City’s residents, future generations, and the San Francisco Bay Community. Due to the scale and complexity, the Wastewater Treatment Plan project will be done in three phases over the five years. Phase 1 began in August 2019.