DESIGN-BID-BUILD (DBB) PHASE III GROUNDWATER TREATMENT PLANT CONSTRUCTION, NWIRP BETHPAGE, WANTAGH, NEW YORK

Solicitation Number: N4008527R0048 This notice does NOT constitute a request for proposal, request for quote, or invitation for bid. The intent of this pre-solicitation synopsis is to make notice of a proposed contract action for performing construction services for Design-Bid-Build (DBB) Phase III Groundwater Treatment Plant Construction, Naval Weapons Industrial Reserve Plant (NWIRP) Bethpage, Wantagh, New York. PROJECT DESCRIPTION: This Design-Bid-Build project aims to address a plume of contaminated groundwater that has spread south from the former NWIRP and Northrop Grumman properties. This contamination, primarily consisting of chlorinated VOCs (like TCE) and 1,4-dioxane, is being remediated as required by the Navy and the New York State Department of Environmental Conservation. The core of this phase is the construction of a new Groundwater Treatment Plant (GWTP) designed to intercept the leading edge of the plume. The plant will treat the captured water to meet drinking water standards using a process that includes sand filters, an Advanced Oxidation Process (AOP), and Granular Activated Carbon (GAC). The scope of work involves the complete construction and commissioning of the facility. This includes completing three groundwater recovery wells and the associated underground piping to bring contaminated water to the plant. The facility itself will house numerous systems, including large storage tanks, multiple filter types, the AOP system, and granular activated carbon units. The project also covers the construction of two new buildings for the treatment plant and offices, along with all necessary structural, electrical, and plumbing infrastructure. The work includes: buried piping systems, pavements, and miscellaneous items; one underground vault; piping, valves, fittings for three recovery wells and wiring, instruments, and equipment within the conduit, manholes, and vaults; three Reinforced Plastic (FRP) vertical storage tanks; one glass fused Backwash wa