Performance of a Study to Develop PFAS Preliminary Design Report

**Please see Request for Proposals document for full Scope of Services**Tasks associated with the implementation of PFAS mitigation treatment technologies include, but are not limited to, performing an operational needs analysis of the current Perdue WTP and treatment processes (including pilot study), evaluate alternatives and recommend renovations to the existing WTP required to mitigate PFAS compounds to ensure compliance with all USEPA MCLs and California NLs and RLs, and provide a total project cost estimate for the recommended improvements.The final preliminary design report is expected by the end of August 2026, including alternatives and cost estimates of the most effective system. Any schedule delays shall be closely communicated with and approved by the Authority throughout the study.General project management shall be performed by the Consultant, including defining the project scope, schedule, and budget, and coordinating with stakeholders. The Consultant will manage its resources, monitor costs, review invoices, and handle changes to keep the project on track. The Consultant shall also lead meetings, and provide public meeting support, including assistance with presentations to the Sweetwater Authority Governing Board for project updates. In addition to general project management, the Detailed Scope of Services anticipated for this RFP is presented below:TASK 1: DESKTOP STUDYConsultant will prepare a desktop study that will evaluate alternatives to remove PFAS from the finished water at the Perdue WTP to below detection limits to comply with applicable USEPA and California State Water Resources Control Board regulations.TASK 2: PILOT STUDY RECOMMENDATIONThe selected alternative(s) determined to be technically feasible, capable of meeting water quality criteria, that offer additional water quality benefits in addition to PFAS removal, and are the most cost-effective will be pilot tested to validate the results of the desktop analysis and confirm design parameters.TASK 3: PILOT TEST PLANA comprehensive pilot testing plan will be developed to guide the implementation of the recommended pilot study. The Consultant will be responsible for preparing the plan, providing technical and staffing support, and conducting the pilot test in coordination with the Authority. TASK 4: PILOT TEST IMPLEMENTATIONThe Consultant will provide the necessary staffing, technical oversight, and direct operation to support and conduct the pilot testing study throughout the duration of the study. The pilot testing equipment will be placed within the Perdue WTP, a facility staffed 24 hours a day, 7 days a week. Accordingly, routine checks and readings may be performed by Authority Operations staff.TASK 5: PILOT TEST REPORTThe Consultant will provide a pilot testing report to summarize the findings and recommendations for full-scale PFAS design based upon the pilot testing results.TASK 6: PRELIMINARY DESIGN REPORTThe Consultant will prepare a preliminary design report for the PFAS removal system and associated Perdue WTP improvements.