Chester WWTP NPDES Permit Compliance Project

The State Water Resources Control Board is leading the Chester WWTP NPDES Permit Compliance Project, identified by project number 8587-210, to bring the wastewater treatment facility into full compliance with regulatory requirements. The project encompasses a series of critical infrastructure upgrades including enhancements to the headworks, new piping to integrate expanded facilities, a modern Supervisory Control and Data Acquisition system, an emergency standby generator with an automatic transfer switch, and the construction of two Submerged Attached Growth Reactors. Additional components include a recycle pump station, a control and blower building, a contact chlorine basin, and a new on-site sodium hypochlorite generation facility, all designed to improve treatment efficiency and regulatory adherence. The project also involves the safe removal of an existing dried sludge pile located northeast of the treatment ponds to address environmental and operational concerns. Funding for the project is provided by the State Water Board’s Division of Financial Assistance, with performance occurring in Chester, California, at ZIP code 96020. The initiative is forecasted to proceed with a posted date of June 1, 2026, and is managed by key contacts including Bonnie Mullaney, General Manager at Chester PUD, and Matthew Metelitz, Environmental Scientist at the State Water Board. Although no formal solicitation number has been issued yet, the project is documented on the CEQA NET platform under identifier 2025070661, indicating formal environmental review and procedural steps are underway to ensure compliance with state environmental standards.