delaware sand & gravel landfill

229 GRANTHAM LANE

The site covers 27 acres and is located about two miles from the City of New Castle, DE. It is located adjacent to another Superfund site, the Army Creek Landfill. Formerly, a sand and gravel quarry, the site is now an inactive industrial waste landfill. Portions of the site are used as a salvage yard and a propane supply business. Landfilling operations started in 1968. Industrial waste and construction debris, including thousands of drums of hazardous material, were landfilled there. The site was closed as a landfill in 1976, following an enforcement action by the State. The 3-acre Drum Disposal Area was a repository for at least 13,000 drums of liquid sludge from chemical production, manufacturing and petroleum refining. The half-acre Ridge Area had hot spots of contaminated surface soil due to chemical spills. The 2-acre Grantham South Area and the 11-acre Inert Disposal Area each contain mixed chemical wastes buried 20 to 40 feet thick. Hazardous substances from the site have migrated into the underlying groundwater of the shallow Columbia Aquifer and the deeper Upper Potomac Aquifer which is used as a drinking water source. In 1971 contamination was found in a private well near the adjacent Army Creek Landfill. Beginning in the early 1970s, nearby residents who had private water supply wells were put on the public water supply from the Artesian Water Company which supplies water to the overall community.

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