Replace wastewater treatment plant at dry tortugas

The National Park Service Southeast Region is soliciting proposals to replace the wastewater treatment plant at Dry Tortugas National Park on Garden Key, Florida. The project involves complete demolition of the existing wastewater treatment system and installation of a new Orenco AdvanTex AX-20 treatment system with associated lift stations, piping, electrical systems, and a separate laundry treatment system. Contractors must demonstrate experience with similar remote location projects and complex logistics, as all work must be performed on an island accessible only by boat or seaplane. The evaluation will prioritize technical approach and past performance over cost, requiring contractors to submit detailed technical proposals limited to 20 pages, past performance questionnaires from three similar projects completed within five years, and comprehensive cost proposals with prime and subcontractor breakouts. The original proposal deadline was September 5, 2025, but has been extended to September 15, 2025 at 11:00 a.m. ET, with a mandatory site visit scheduled for August 19, 2025.

This opportunity is set aside for Service-Disabled Veteran-Owned Small Businesses with an estimated contract value between $750,000 and $1.5 million. The contract will be firm fixed-price with performance and payment bonds required at 100% of the contract value, plus a 20% bid guarantee. The contractor must begin work within 10 calendar days of receiving notice to proceed and complete all work within 210 calendar days, with the performance period running from December 1, 2025 to June 29, 2026. Work will be performed at the historic Fort Jefferson on Garden Key in Dry Tortugas National Park, requiring strict adherence to historic preservation standards and National Park Service regulations. The remote location presents significant logistical challenges, including a 14,000-pound weight restriction on the bridge over the moat, limited on-site housing availability (6 beds at $45 per night), and requirements for contractor-provided transportation of all personnel and materials to the island worksite.