Superfund Site Profile
The 1.5-acre Tri-State Plating site is located in Columbus, Indiana. Electroplating operations at the site contaminated soil and groundwater with cyanide and heavy metals, including chromium. Tri-State Plating stopped operating at the site in 1984. EPA placed the site on the Superfund program’s National Priorities List (NPL) in 1986. Following cleanup, EPA took the site off the NPL in July 1997.