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DuPont Company - Repauno Plant

EPA Identification Number: NJD002373819
Facility Location: 200 North Repauno Ave, Gibbstown, New Jersey   

Link to the site map

Facility Contact: Albert J. Boettler, (609) 540-2153
EPA Contact: Ernst Jabouin, (212) 637-4104, jabouin.ernst@epa.gov
New Jersey Department of Environmental Protection (NJDEP) Case Manager: Paul Harvey, (609) 633-0714
Last Updated: October 2005
Environmental Indicator Status:

Human Exposures Under Control [PDF 94.8 KB, 28 pp] has been verified.
Groundwater Contamination Under Control [PDF 75.2 KB, 32 pp] has been verified.

Site Description

DuPont company is located at 200 North Repauno Avenue in Gibbstown, New Jersey.  The DuPont Gibbstown plant occupies nearly 1,900 acres along the Delaware River in Gibbstown, Greenwich Township. The plant, which opened in 1880, made a range of products including dynamite, acids, nitrobenzene and other organic compounds. In 1998 and 1999, DuPont sold its remaining business operations (sodium nitrite and industrial diamonds), but retains ownership of the property.

Potential Threats and Contaminants

Stormwater and wastewaters generated throughout the site have been discharged to the Delaware River through the discharge pipes (point sources) pursuant to the State of New Jersey Pollutant Discharge Elimination System (NJPDES) program. Ditches have been utilized to convey stormwater and wastewaters. Sediments in the ditches and soils at the site are contaminated with nitrobenzene, aniline, diphenylamine, and polychlorinated biphenyls (PCBs). Groundwater is also contaminated with organic compounds, such as nitrobenzene, aniline, benzene, and tetrachloroethylene. The wastewater ditches at the former Nitrobenzene and Pyromellitic Dianhydride/Dimetyl Terephthalate (PDMT/DMT) production areas are a primary source of the contamination.

Cleanup Approach and Progress

In 1990, 8,500 tons of sediments were removed from the ditches in the former Nitrobenzene and PMDA/DMT production areas. In the three rounds of sitewide investigation completed in 1993, 1996, and 2000 respectively, DuPont screened all Solid Waste Management Units (SWMUs) and Areas Of Concern (AOCs) for their investigation/remediation priorities and focused on the migration/flow of groundwater and the soils in former production areas.

The currently ongoing fourth round of investigation is to complete the investigation of the remaining two SWMUs/AOCs and to conduct an ecological risk assessment for the wetlands, streams, and the ditch system. In 1985, DuPont installed a system to pump contaminated groundwater and to treat. The groundwater interceptor system has been in operation since, in conjunction with a groundwater monitoring program.

DuPont will continue the fourth round of investigation. Any other source areas of contamination will be identified and cleaned up. The New Jersey Department of Environmental Protection (NJDEP) will issue a deed notice to restrict any uses of the property that may be a threat to people. DuPont will also continue the groundwater interceptor system together with the sitewide groundwater monitoring program to confirm that contaminated groundwater is under control. NJDEP will also impose restrictions on the use of groundwater for as long as it remains contaminated.

Site Repository

Copies of supporting technical documents and correspondence cited in the site fact sheet are available for public review at the following location:

New Jersey Department of Environmental Protection
Division of Solid & Hazardous Waste
Records Center
401 E. State Street, 6th Floor
Trenton, NJ 08625
Telephone: (609) 777-3373

The New Jersey Department of Environmental Protection (NJDEP) makes available its public records through formal request under the Open Public Records Act (OPRA).

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