S Wells PFAS Groundwater Treatment and Disinfection Facility Project

The S Wells PFAS Groundwater Treatment and Disinfection Facility Project, identified by project number 1910240-002C and solicitation number 2022110376, is being implemented by the Santa Clarita Valley Water Agency in Los Angeles County. Funded by the State Water Board, the project aims to restore the use of Wells S6, S7, and S8 to reduce dependency on imported water. The scope of work includes the construction of a per- and polyfluoroalkyl substances groundwater treatment and disinfection facility, a chloramine disinfection building, a new groundwater well (S9), and an underground 12-inch drainage pipeline connection with approximately 2,100 linear feet of associated pipelines. Additionally, the project involves critical upgrades to existing Wells S6, S7, and S8, specifically the replacement of submersible pumps and electrical panel upgrades. The project is governed by the California Environmental Quality Act, with a Mitigated Negative Declaration adopted to ensure no significant environmental effects. Administrative oversight is led by Principal Engineer Orlando Moreno. The project is located across multiple parcels in Santa Clarita, including Assessor's Parcel Number 2811-066-902. Financing for the project was approved by the State Water Board on July 23, 2026, following an initial Notice of Determination filed on August 20, 2025.