The Claremont Polychemical site is a 9.5-acre abandoned chemical production facility in central Long Island, Town of Oyster Bay, Nassau County, New York. Land use in the area is devoted primarily to light industrial and commercial operations. Contamination at the site took place between 1968 and 1980 and resulted from ink and pigment manufacturing operations, which generated wastes including organic solvents, resins, and wash wastes. The site consists of a one-story building with a contaminated sump, five 5,000-gallon wastewater treatment basins containing sludge, and six above-ground tanks, three of which still contain waste materials. The initial discovery of site contamination occurred in 1979 when the county found 2,000 to 3,000 waste drums, some uncovered and others leaking. The primary contaminants of concern in drummed and packaged liquids and solids, and in treatment basin sludge are VOCs including benzene, toluene, TCE, and PCE; other organics; and metals including arsenic, chromium, and lead.

"Sept. 22, 1989." "PB90-150954." "September 1989." "Office of Emergency and Remedial Response." "EPA/ROD/R02-89/090."