The Chemical Control Corporation (CCC) site, consisting of 2.2 acres and a portion of the Elizabeth River, is located in Union County, New Jersey. The site area, formerly a marsh, is flat and barely above sea level. The surrounding area is mostly industrial. However, one residence is within 200 feet of the site. Densely populated neighborhoods are located across the Elizabeth River. From 1970 to 1978, CCC operated as a hazardous waste storage, treatment and disposal facility accepting various types of chemicals including: acids, arsenic, bases, cyanides, flammable solvents, PCBs, compressed bases, biological agents and pesticides. Throughout its operations, CCC was cited for discharge and waste storage violations. In March 1979, the State of New Jersey initiated a site cleanup of bulk solids and liquids, drums at and below the surface, gas cylinders, infectious wastes, radioactive wastes, highly explosive liquids, debris, tanks and three feet of soil. Excavated soil areas were replaced with a three foot gravel cover.