Leachate PFAS Removal and Destruction Pilot Test

The City of Nashua is seeking professional engineering services through a Request for Qualifications (RFQ) for a Leachate PFAS Removal and Destruction Pilot Test at the Four Hills Landfill in Hillsborough County, New Hampshire. The primary objective is to design and execute a pilot treatment/removal program for per- and poly-fluorinated alkyl substances (PFAS) from landfill leachate, which currently amounts to approximately 1,500,000 gallons monthly. The selected engineering consultant will be responsible for designing the pilot project, assisting in treatment technology selection, overseeing a PFAS/leachate pilot treatment vendor, providing permitting services, analyzing pilot test data, and developing preliminary full-scale treatment system designs. Qualifications are due by September 16, 2025, at 2:00 PM, with interviews planned for late September/early October 2025. Up to three respondents will be invited to interview, and the final consultant selection will occur following these interviews. To be considered, engineering consultants must be listed on the NHDES "Water Division - Wastewater Engineering Bureau, Roster of Pre-Qualified Licensed Engineering Firms."

Respondents must meet specific insurance requirements, including $1,000,000 in general liability, motor vehicle liability, and professional liability coverage. The City is committed to providing opportunities for disadvantaged business enterprises and will not discriminate based on race, color, national origin, sex, age, or disability. While no specific budget range is explicitly stated, the project is funded through the City of Nashua and involves managing leachate that currently discharges to the Nashua Wastewater Treatment Plant. Leachate PFAS testing data from 2020-2022 has been provided, which shows varying concentrations of perfluorinated compounds that will be critical to the pilot test's design and execution. The project represents a strategic approach to addressing PFAS contamination in municipal landfill leachate, with potential implications for broader environmental management and treatment methodologies.