new hampshire plating co.


From 1962 to 1985, the New Hampshire Plating Co. (NHPC) conducted electroplating operations on its more than 13 acre parcel in Merrimack, New Hampshire. Four natural lagoons located on-site were used for disposal of wastes and waste waters resulting from the electroplating operations. These lagoons were unlined and had no leachate detection or collection systems. Because of the nature of the operations, the NHPC declared itself a hazardous waste disposal facility in 1980 under Subtitle C of the Resource Conservation and Recovery Act (RCRA). The EPA and the New Hampshire Division of Environmental Services (NHDES) cited the NHPC, in 1982, as having violated several RCRA requirements. A Notice of Violations and Order of Abatement were issued to the NHPC by the NHDES as a result. Operations at the NHPC ceased in 1985 due to the NHPC's financial inability to meet compliance standards and continue hydrogeologic investigations at the site. In 1987, the lagoon system was stabilized, contaminated debris on the site was removed, and the NHPC building was given a superficial cleaning under the supervision of the NHDES. In 1990, approximately 13,600 tons of contaminated sludge and soil at the property were stabilized on-site by the EPA; 5,600 tons of contaminated sludge and soil was consolidated under an impermeable cap in a former lagoon area; and an additional 5,000 tons of soil were disposed off-site. The area immediately surrounding the site is served by public water. However, there are wells located within 4 miles of the site that are a drinking water source for an estimated 39,000 people; the closest of these wells is located within 1 mile of the site. Groundwater below the site is shallow, flowing eastward towards the Merrimack River and southward to Horseshoe Pond, both of which are located within 1,000 feet of the site.

Hazardous Ranking Score

50 / 100

A score of 28.5 or higher qualifies a site for the Superfund National Priority List.

Regional Contact

Region 1
Phone: (888) 372-7341
Fax: (617) 918-0101

Outside New England:
(617) 918-1111

Contact Region



Site Inspection
Preliminary Assessment
Final Listing On NPL

Contaminants & Health Effects

      Endocrine Disrupter
      Reproductive Toxin
      Persistent, bioaccumulative and toxic


        African American
        American Indian and Alaska Native
        Native Hawaiian


        People living
        within a 1 mile radius


        Average Income


        Occupied homes

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