Site History: Chronic release of hazardous substances began in approximately 1941 when the site began manufacturing ferrochromium alloy using electric arc furnace methods. Waste materials contaminated with heavy metals (chromium, lead, nickel, zinc) generated during production (slag, ash, dust, sludge, wastewater) were disposed of on-site.

Surface water infiltrated into underlying soils and groundwater and/or flowed overland discharging to Shipyard Creek, a tributary to the Cooper River in Charleston, SC. Production ceased in 1998 when the plant closed. Site cleanup, including the dredging of sediments contaminated with heavy metals, was completed in 2006.

Location: North Charleston, SC.

Trustees:

• National Oceanic and Atmospheric Administration (NOAA)
• U.S. Fish and Wildlife Service (FWS)
• South Carolina Department of Health and Environmental Control (SCDHEC)
• South Carolina Department of Natural Resources (SCDNR)

Case status: Restoration Phase.

Overview: The trustees conducted a preliminary injury assessment for the Macalloy Corporation Site and determined the appropriate amount of saltmarsh restoration necessary to compensate the public for resource injuries resulting from heavy metal contamination. The trustees reached agreement with Macalloy in 2005 regarding terms and conditions for resolving their liability, paying trustee past costs and funding the trustees to plan and execute compensatory restoration.