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EPA Region 3 (Mid-Atlantic)

West Virginia
Marshall County

EPA ID# WVD024185373

1st Congressional District

Last Update: January 2015

Other Names

LCP Chemicals
Allied Chemical Moundsville

Current Site Status

Under the oversight of the U.S. Environmental Protection Agency (EPA) Honeywell International Inc. and Olin Corporation are performing various cleanup activities at the Hanlin-Allied-Olin Site. Honeywell, formerly Allied, under a consent agreement with EPA, completed the construction of a hazardous waste landfill in August 2009. Contaminated soil, waste stockpiles generated as part of a removal action, and waste in former on-site disposal units was placed in the newly constructed landfill. The landfill consists of two cells with an engineered liner and leachate collection system and a multi-layer cap. All waste placed in the landfill was from on-site sources generated during Allied, Olin, LCP, and Hanlin operations. The landfill did not receive wastes from off-site sources. A Soil Vapor Extraction (SVE) system was installed in the summer of 2009 to treat contaminated subsurface soils in the former chloromethane production area. To date, the SVE system removed 249,366 pounds (more than 124 tons) of VOCs from the subsurface soils. Contaminated soils from the Olin area of the site were excavated and either placed in the new landfill or shipped off-site. A gas processing facility is currently being built on the former Olin property which is currently owned by Williams. The investigation, as described in the Remedial Investigation/Feasibility Study Work Plan dated August 2010 is underway. Groundwater at the southern portion of the site is treated in the on-site waste water treatment plant and discharged to the Ohio River under a WV NPDES permit.

Site Description

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.

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. The Allied Park and Olin Areas, make up the North Plant Area. The property is divided into three areas described below:

The North Plant and the South Plant had distinctly different chemical processes. At the North Plant, the primary activities were the production of aniline, nitrobenzene, methylene dianiline, dinitrotolune, 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 EPA has entered into several agreements with the Potentially Responsible Parties (PRPs):

1994 - EPA and Olin entered into an Administrative Order to investigate the contamination in the Olin Area. Based on the findings of the investigation, EPA recommended that contaminated soils be excavated and placed in the north cell of the landfill.

1995 - EPA and Honeywell (formerly Allied Signal) entered into an Administrative Order to evaluate the south plant and the Allied Park Area. Honeywell demolished the mercury cell building and removed tons of solid and hazardous waste material from the South plant. The investigation was completed in 2003.

1997 - EPA entered into and Administrative Order with Olin to conduct a removal action (based on the findings of the investigation). Approximately 100,000 cubic yards of contaminated soils were excavated and placed in the north cell of the new landfill during the winter and spring of 2008.

2001 - EPA entered into an Administrative Order with Honeywell and Olin to conduct a Remedial Investigation and Feasibility Study (RI/FS). This investigation addresses ground water and any soils that may not be examined under the other investigations. Ground water and soils data was compiled into a work plan. The RI/FS is in progress.

2003 - EPA entered into an Administrative Order with Honeywell to perform several tasks including: design and construct a hazardous waste landfill, consisting of a north and south cell, that complies with the hazardous waste regulations; excavate and consolidate waste material from several former land disposal units into the landfill; design and construct a soil vapor extraction (SVE) system to remediate contaminated subsurface soils in the former production area. Construction of the landfill was completed in August 2009. Operation of the SVE is ongoing.

Site Responsibility
This site is being addressed through federal, state and potentially responsible parties' actions.
NPL Listing History
Proposed Date: 10/02/95
Re-Proposed Date: 04/23/99
Final Date: July 22, 1999

Threats and Contaminants

Mercury, chloroform and carbon tetrachloride have been identified in the groundwater on the Hanlin-Allied portion of the Site. The Washington Lands water well, a groundwater public supply, is located 3,000 feet south of the site. The Moundsville Country Club, located adjacent to the site, uses groundwater for watering the greens and fairways. Groundwater extraction wells are operating to prevent groundwater-borne contaminants from reaching the public water supply and the golf club's water supply. Recovered groundwater, after treatment, is discharged into the Ohio River in accordance with the terms of the West Virginia surface water discharge permitting program.

Some of the contaminants of concern for the Olin portion of the Site include 2, 4-diaminotoluene, 2, 4-dinitrotoluene, aniline, and nitrobenzene.

Contaminant descriptions and risk factors are available from the Agency for Toxic Substances and Disease Registry, an arm of the CDC.

Cleanup Progress

The source area extraction wells are preventing ground water in the alluvial aquifer from migrating off-site. The waste water treatment plant treats over 300,000 gallons per day with a 99% contaminant removal efficiency significantly reducing the load of contaminants to the Ohio River. Construction of the landfill, both the north and south cells, was completed in August 2009. All of the Hanlin-Allied production buildings including chloro-methyl and mercury cell buildings have been removed. All of the production facilities on the northeast portion of the site in the Olin Area were demolished and removed in 1989. Investigations and removal actions are ongoing.


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