Stage of Clean-up: Study Underway
Conditions at proposal (October 15, 1984): The Nepera Chemical Co., Inc., Site covers 23 acres southwest of Maybrook, Orange County, New York. Between l953 and l968, Nepera used the site to dispose of a portion of the industrial wastes generated by its plant in Harriman, New York. The plant manufactured a variety of organic chemical compounds. In 1953, the State issued Nepera a "permit to discharge sewage or wastes into the waters of the State." Waste disposal started with two lagoons and expanded to six lagoons, each measuring l60 feet long, 70 feet wide, and 6 feet deep. The discharge started at 50,000 gallons per week and declined to about 7,000 gallons per week in l967. State inspections detected leakage from the lagoons in l958 and l960. Nepera and EPA detected contaminants, including ARSENIC, COPPER, ZINC, DICHLOROMETHANE, and DI-N-BUTYLPHTHALATE, in on-site test wells. Due to the State's continuing concern about proper containment of the waste and the threat to the Maybrook Well Field 800 feet away, which served 2,500 people, Nepera discontinued operation of the lagoons in l968. The last lagoons were filled in l974. More...
Sources of Contamination: