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Hazardous Waste Cleanup: CP Chemicals Incorporated in Sewaren, New Jersey

On this page:

  • Cleanup Status
  • Site Description
  • Contaminants at this Facility
  • Site Responsibility

Cleanup Status

CP completed a comprehensive site wide investigation. It then removed wastes, underground storage tanks, waste-containing drums, and open lagoon systems once used for containment and discharge of wastes. CP installed a permanent site wide cap and upgraded its storm water runoff and waste collection systems. CP also installed systems that collect contaminated groundwater and treat it, a groundwater cutoff wall, and a monitoring program to assess the effectiveness of the systems.  NJDEP has imposed a deed notice to restrict any uses of the property that might be a threat to human health or the environment from any residual contaminants left on the site.

CP will continue to operate the groundwater collection and the monitoring systems to ensure that the contaminated groundwater is under control. If deemed necessary, the groundwater collection systems will be modified, upgraded, or enhanced. New Jersey Department of Environmental Protection (NJDEP) will limit the use of the on-site groundwater for as long as it remains contaminated.

Site Description

CP Chemicals was a specialty chemical manufacturing facility located at 7 Arbor Street, on 14 acres of land in Sewaren, New Jersey. The property abuts Woodbridge Creek, which drains into the Arthur Kill. 

CP shut down all operations and has conducted site cleanup activities pursuant to an Administrative Consent Order (ACO) entered into between NJDEP and CP in March 1991. Ownership of the CP property was transferred to the Township of Woodbridge.   

Contaminants at this Facility

Soil and groundwater are contaminated due to the discharge of wastes and other hazardous substances during the management and disposal of raw materials, chemical products and wastes.  The contaminants of concern include various metal cyanides and heavy metals.

Site Responsibility at this Facility

Resource Conservation and Recovery Act (RCRA) Corrective Action activities at this facility have been conducted under the direction of EPA Region 2.