ormet corp.


The Ormet Corp. facility, located along the Ohio River in Monroe County, Ohio, is an aluminum processing plant that began operating in 1958. Between 1958 and 1968, about 85,000 tons of spent potliner material from the reduction plant were stored in an unlined open storage area to the east of the plant. The spent potliner was also placed in an unlined landfill adjacent to the Ohio River and to the east of the plant. At the time of the remedial investigation, about 1500 people lived within a three-mile radius of the site. Over 3,000 employees of Ormet Corp. and the nearby aluminum rolling mill plant to the west, which was subsequently purchased by Ormet, obtained drinking water from a Ranney well that is about 2,000 feet from the reduction plant on the rolling mill property. There are two interceptor wells, installed by Ormet in 1973, which extract contaminated groundwater before it reaches the process water well on the reduction plant property. This contaminated groundwater is sent to an on-site treatment plant. The rolling mill equipment has been sold and moved and then the property was sold. The potlines at the reduction plant were shut down during the bankruptcy proceedings that ended in April 2005; Ormet has now restarted all six potlines, completing this in December 2007. Ormet had about 1000 employees in January 2008, most at the Hannibal facility. Potable water for the reduction plant is now obtained from a local water company; the Ranney well at the rolling mill that had been supplying this water has been shut down. The estimated population of Monroe County in 2007 was about 14,000; this population has been decreasing. The parcel of property on which the site sits was acquired by Hannibal Development Partners in the fall of 2014. The new owners are exploring new uses for the property, including that portion which includes the Superfund Site. Site Responsibility This site is being addressed through federal, state, and potentially responsible party (PRP) actions.

Hazardous Ranking Score

46 / 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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