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E.P.A. Adds Union County, AR, Refinery Location to

Category: Hazardous Waste
Type: News
Source: EPA
Date: Thursday, May 8th, 2014


(DALLAS - May 8, 2013) The E.P.A. (EPA) today added the MacMillan Ring-Free Oil location in Union County, Arkansas, to the National Priorities List (NPL) of Superfund sites, a list of sites that pose risks to people's health and the environment. Superfund is the federal plan that investigates and cleans up the most complex, uncontrolled or abandoned hazardous waste sites in the country.

The site, near a residential neighborhood and a school in Norphlet, operated as a crude-oil refinery and maker of lubrication oil and asphalt products from 1929 to 1987. Nor-Ark Industrial Corp bought the property in 1989 to store asphalt products until 1991. Norphlet Chemical refurbished the location in 2004, intending to manufacture an automotive refrigerant called tetrafluoroethane (Freon 134A); however, the plant never operated as intended and the location has been abandoned since 2007.

"Contaminated sites like the one in Union Co. directly affect their surrounding environment and residents," said E.P.A. Regional Administrator Ron Curry. "It's vital to the community and to EPA's mission that we restore and protect the land by addressing this pollution."

The E.P.A. and Arkansas Department of Environmental Quality have found contamination from the location has seeped into groundwater and in drainage pathways that lead to wetlands north of the site. Soil on and under the property has also been affected. Contaminants include polycyclic aromatic hydrocarbons, total petroleum hydrocarbons and metals. While past efforts removed or treated some contamination at the site, much work remains to be done to assess the threat to the surrounding area.

Since 1983, E.P.A. has listed 1,701 sites on the NPL. At 1,158 or 68 percent of NPL sites, all cleanup remedies are in place. Approximately 662 or 39 percent of NPL sites have all necessary long-term protections in place, which means E.P.A. considers the sites protective for redevelopment or reuse.

With all NPL sites, E.P.A. works to identify companies or people responsible for the contamination at a site, and requires them to conduct or pay for the cleanup. For the newly listed sites without viable potentially responsible parties, E.P.A. will investigate the extent of the contamination before assessing how best to treat it.

More information on the Superfund NPL is accessible at http://www.epa.gov/superfund/sites/npl/current.htm

More about activities in E.P.A. Region six is accessible at http://www.epa.gov/aboutepa/region6.html
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