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Hazardous Waste Cleanup: Union Carbide Corporation - Private Trucking Operations in Nitro, West Virginia

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Cleanup Status

On July 17, 2016, West Virginia Department of Environmental Protection (WVDEP) issued a Statement of Basis (SB) to solicit public comment on its proposed remedy for the Union Carbide - Private Trucking Operations ( UCC - PTO) Facility. WVDEP did not receive any comments on the proposed remedy, and the proposed Remedy as set forth in the Statement of Basis became final as provided by the Final Decision Response to Comments (FDRTC), which was issued on September 7, 2016. The Final Remedy consist on combination Institutional and Engineering Controls, including groundwater recovery and monitoring. The Final Remedy was incorporated into this Facility Wide RCRA Corrective Action Module.

Cleanup Background

Beginning in August 2008, an interim measure was conducted near Solid Waste Management Unit (SWMU) five to address soil contamination. In December 2008, a design was prepared for an interim measure in the Ryan's Branch area. The design was finalized in 2009. Permits and approvals for construction of the interim measure were obtained from local, state, and federal agencies and stakeholders. Implementation of the interim measure was conducted from September 2009 to April 2010. In March 2010, planning was initiated for pre-design activities for SWMU three in concert with evaluation of possible interim measures for groundwater.

In 2012, SWMU one was evaluated for a remedy consisting of protective cover and groundwater monitoring.  Geotechnical borings were installed and finally the cover of SWMU one was enhanced to limit infiltration and prevent exposure.  In late 2011 and early 2012, interim measures for SWMU 3 were evaluated and pre-design activities conducted. In September 2012, the evaluation of SWMU three was completed and an interim remedy proposed consisting of cover enhancement and groundwater performance monitoring.

In 2012, an evaluation was conducted at the Proposed Reuse Area that included historical surface soil data and additional surface soil data collected.  The purpose was to evaluate potential risks associated with a commercial/industrial worker exposed to surface soils throughout the site. Implementation of the interim measure was conducted from October 2012 to December 2012. In addition, additional surface soil sampling was completed across the site to support updates to the human health risk assessment. In September 2013, a design was prepared for an interim measure for the Central Waste-In-Place Area.  Implementation of the interim measure was conducted from October 2013 to December 2013.

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Site Description

Interactive Map of Union Carbide Corporation (UCC) - Private Trucking Operations (PTO), Nitro, West Virginia


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UCC's PTO Facility was used for cleaning tank trucks from 1975 to 1985. Prior to that operation, the facility was used for the disposal of various wastes from West Virginia UCC operations. The Resource Conservation and Recovery Act (RCRA) Facility Investigation (RFI) Workplan described thirteen (13) Solid Waste Management Units (SWMUs) within the approximately forty (40) acre site.

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Contaminants at this Facility

Based on available information there are no known imminent threats to human health or the environment at the PTO Facility. The main contaminants of concern are poly-chlorinated biphenyls (PCBs), polynuclear aromatic hydrocarbons (PAHs), naphthalene, bis(2-ethylhexyl)phthalate, carbon tetrachloride, benzene and trichloroethene.

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Institutional and Engineering Controls at this Facility

Institutional Controls include restricting land use to non-residential use, groundwater use for any potable use, maintain existing soil caps and cover, limit subsurface work, and require groundwater monitoring.

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Land Reuse Information at this Facility

Portions of the facility may be redeveloped for nonresidential use consistent with an industrial/commercial setting and with appropriate use restrictions and engineering controls in place.

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Site Responsibility at this Facility

RCRA Corrective Action activities at this facility have been conducted under the direction of EPA Region 3 with assistance from the West Virginia Department of Environmental Protection (WVDEP).

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