E-Wells PFAS Groundwater Treatment Improvements Project

The Santa Clarita Valley Water Agency is forecasting the E-Wells PFAS Groundwater Treatment Improvements Project in Santa Clarita, California, under NAICS code 237990. The project involves the construction of a centralized per- and polyfluoroalkyl substances treatment facility and associated pipelines to collect and treat groundwater from Wells E-14, E-15, E-16, and E-17. The primary objectives are to treat PFAS to levels below the federal Maximum Contaminant Level, restore the use of the E-Wells, and reduce dependency on imported water. This will enable the activation of Wells E-14 and E-16 with production capacities of up to 1,200 gpm each, while maintaining historical production for Wells E-15 and E-17. Construction is scheduled to occur between January 2027 and December 2028, with grading and excavation estimated from March 2027 through December 2027, and drainage and utilities continuing through September 2028. Once complete, the facility will operate 24 hours a day, 365 days a year, supported by weekly staff visits, bimonthly chemical deliveries, and resin media replacement every four to six months. The project is subject to strict environmental compliance, including the presence of an on-site biologist for monitoring, pre-construction clearance sweeps for special-status species, and adherence to specific construction best management practices regarding speed limits, wildlife protection, and spill prevention. Coordination involves multiple agencies, including the State Water Resources Control Board and the Los Angeles Regional Water Quality Control Board.