Lift Stations – Collection System Improvements

San Mateo, CA

This project for the City of San Mateo as part of the 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 lift stations project occurred at two separate locations to completely remove, bypass, and replace the existing lift station facility. The first location is at 38th Avenue and El Camino Real and the second location is at 41st Avenue and Pacific Boulevard. Both locations required temporary bypass pumping and controls to completely remove and replace the existing wet and dry well for each lift station. New 96 inch diameter wet wells were drilled and shored approximately 35 feet in depth. New pumps, piping and pumping equipment with electrical controls and back up diesel powered generator were installed at each lift station. New 8’’ and 12’’ force mains were installed and tied into the existing system in addition to removal and replacement of 8’’ sanitary sewer lines and manholes up to 20 feet in depth.

San Francisco International Airport

Dale Avenue Pump Station – Collection System Improvements