Superfund Site Profile

The Hanlin-Allied-Olin Site is located approximately three miles south of Moundsville, West Virginia and is between the Ohio River, WV Route 2 and the Moundsville Golf Course. The site is in the mid-northern portion of Round Bottom, a sickle shaped bottom land alluvial deposit along the inside of a sharp meander in the Ohio River. Round Bottom encompasses an area approximately four miles in length and a width of one-half mile at its widest point.

The property is divided into the North and South plants due to distinctly different chemical processes.  At the North Plant, the primary activities were the production of aniline, nitrobenzene, methylene dianiline, dinitrotoluene, toluenediamine, and toluene diisocyanate. The South Plant produced chloromethane compounds using the chlor-alkali (mercury cell) process; other products included chlorine and sodium hydroxide. Mercury and chloromethane have been identified in the groundwater in the area and threatens the Washington Public Lands Well which is down gradient of the site.

The site name refers to changing owners and names of the businesses that were located on the property. Allied Signal operated the site from 1953 until 1980.  In 1980, the southern portion of the site, also known as the South Plant, was sold to LCP Chemicals-West Virginia. LCP Chemicals-West Virginia underwent a name change in 1990 to Hanlin Chemicals-West Virginia. In 1981, Allied Signal sold the northeast portion of its facility to Olin. Allied Signal kept the northwest potion of the site called Allied Park. Allied Signal, Inc. also underwent a name change and is now known as Honeywell International Inc.

Hanlin Area (South Plant) - 201 acres in the southern portion of the site;
Olin Area (North Plant) - 137 acres in the northeastern portion of the site;
Allied Park Area (North Plant) - 44 acres in the northwestern portion of the site.

The site was proposed to the National Priorities List (NPL) on October 2, 1995 and re-proposed on April 23, 1999.  On July 22, 1999, the site was formally added to the NPL, making it eligible for federal cleanup funds.


Contaminated Ground
Water Status
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