Superfund Record of Decision (EPA Region 3): Aberdeen Proving Ground (EdgewoodArea), Cluster 1, Former Nike Site, Wdgewood, MD., September 27, 1996

摘要

This Record of Decision (ROD) document presents the remedial actions selected toreduce the risks posed by contaminated shallow groundwater, the Launch Southwest Landfill, the Launch Area septic/siphon tanks and sewer lines (hereinafter referred to as sanitary sewer system), and six decommissioned Nike missile silos located at the Nike Site (Cluster 1 of the Lauderick Creek Area) at APG, Maryland. This action addresses the principal threats at the Nike Site in four ways: extracting and treating contaminated groundwater, isolating the Launch Southwest Landfill as a potential source of contamination by installing an impermeable composite cap, removing contaminants from the sanitary sewer system and filling the system with an inert material, and accepting the interim missile silo remedial action (removal of contaminated liquids and filling the silos with an inert material) as the final action.