koppers co., inc. (charleston plant)


The 102-acre site is located on the west side of a peninsula formed by the confluence of the Ashley and Cooper Rivers in Charleston, South Carolina. Industrial, commercial and residential properties border the site to the north, south and east. Rosemont, a neighborhood with low-income and minority residents, is located just north of the site. The Macalloy Corporation Superfund site is located a half-mile north of the site. From 1940 to 1978, the Koppers Company operated a wood treatment facility on a 45-acre portion of the site. Operations included treating raw lumber and utility poles and using aboveground storage tanks for wood preservatives. Following wood treating operations, the Koppers Company leased the area to several other companies, including Fed Serv, Pepper Industries and Braswell Shipyards, for facility operations. The Koppers Company changed its name to Beazer East, Inc in 1990. The Koppers Company never owned the remaining 57 acres of the site located south of the wood treatment facility. Ashepoo Phosphate/Fertilizer Works owned the area and operated a phosphate and fertilizer production facility in this area from 1900 until 1978. After obtaining a permit from the U.S. Army Corps of Engineers, Southern Dredging excavated a barge canal in 1984 that extended approximately 1,000 feet inward from the Ashley River. EPA incorporated the 57 acres into the site’s boundaries to determine the environmental impact of previous dredging operations on the Ashley River and the neighboring tidal marsh. In 2003, Ashley LLC purchased the site property parcels previously owned by Beazer East, Inc. Ashley LLC plans to redevelop the area as part of Magnolia, a 218-acre mixed-use project with residential, commercial retail and office/hotel space and parks. The southern portion of the site is currently vacant.

Hazardous Ranking Score

50 / 100

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

Regional Contact



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

        Potentially Responsible Parties

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