copley square plaza


The Copley Square Plaza Superfund site is located in Copley Township, Summit County, Ohio. The site first came to the attention of the Ohio Environmental Protection Agency (Ohio EPA) due to citizen complaints of an odor in water from wells serving a dry cleaner facility and a grocery store in the Copley Square Shopping Center. Ohio EPA found that the groundwater beneath the site contained volatile organic compounds (VOCs) at levels higher than what Ohio EPA considers to be safe. Investigations at the dry cleaners revealed that chemicals used for dry cleaning, the same VOCs found in the groundwater, were being disposed/stored in eight wastewater tanks in the back room of the facility. Testing showed that the eight wastewater tanks were leaking the VOCs into the groundwater under the building. After four years of extensive testing in the 1990s, Ohio EPA asked for assistance from the U.S. Environmental Protection Agency (EPA) to protect local residents from the contaminated groundwater and to remove the eight wastewater tanks. EPA conducted extensive testing of nearby homes, installed water treatment systems in seven nearby homes that had contaminated wells, closed the eight wastewater tanks at the dry cleaners and installed a system to treat the ground water. After the in-home treatment systems were in place and tested to ensure their effectiveness at removing the volatile organic compounds, EPA turned over the maintanence of the in-home treatment systems to Ohio EPA. Ohio EPA continued to maintain the systems until fall 2012 when 23 homes were connected to public water supply. In 2000, EPA reviewed site conditions at the request of Ohio EPA and found that the groundwater was still contaminated and that there had been no improvement since the mid-1990s. EPA placed the site on the National Priorities List (NPL) in April 2005.

Hazardous Ranking Score

50 / 100

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

Regional Contact

Region 5
Phone: (312) 353-2000

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

        Potentially Responsible Parties

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