PFAS Leachate Removal Pilot Infrastructure Upgrades

The City of Nashua, New Hampshire Division of Public Works is issuing an Invitation for Bids (IFB) for infrastructure upgrades related to the Leachate PFAS Removal and Destruction Pilot Test Project at the Four Hills Landfill in Hillsborough County. This procurement seeks qualified contractors to provide construction layout and documentation survey, excavation and backfilling, installation of pre-cast concrete and HDPE manholes and pump station structures, pipe trenching, furnishing and installation of HDPE and steel pipe with fittings and valves, leachate pump and controls installation with liquid level sensors, HDPE-lined secondary containment work pad preparation, and electrical service installation. The scope encompasses ten main bid items and two alternate items covering mobilization/demobilization, valve box and pump station manholes, pump and controls, electrical conduit trenching, dual-contained HDPE pipe in various sizes, containment area preparation, and an optional equalization tank. Required qualifications include submission of a construction contractor's qualification statement demonstrating experience performing similar work at landfills, identification of all subcontractors representing at least 5% of the prime contractor's total bid, and compliance with all applicable federal and state laws. A mandatory pre-bid meeting and site tour is scheduled for Thursday, May 28, 2026 at 11:30 AM at the Division of Public Works Administration Building; the deadline for bidder questions is Wednesday, June 3, 2026 at 2:00 PM with answers posted by Friday, June 5, 2026 at 3:00 PM; and bids are due by Friday, June 12, 2026 at 2:00 PM at City Hall, 229 Main Street, Lower Level, Room 11, Nashua, NH 03061. Substantial completion is required by August 21, 2026, with final completion by August 28, 2026, and liquidated damages of $250 per working day will be assessed for delays beyond these dates.

The contract will be awarded to the lowest responsive and responsible bidder with no stated set-asides or restrictions limiting organization types, though the City encourages disadvantaged business enterprise (DBE) participation and will consider environmentally sound and energy-efficient products. Bid bonds equivalent to 5% of the base bid price are required for bids exceeding $35,000, along with performance and payment bonds equal to 100% of the contract price; contractors must provide general liability insurance of $1,000,000 per occurrence/$2,000,000 aggregate, motor vehicle liability of $1,000,000 combined single limit, and workers' compensation coverage per New Hampshire statute at $100,000/$500,000/$100,000. All bids must be submitted using the Bonfire electronic platform or provided as paper copies with a USB drive and remain binding for 90 days following the deadline. No budget range or award value is specified in the procurement documents, and no incumbent vendors or current contractors are identified. All bids must be FOB Nashua, NH, and the City is exempt from all taxes.