To evaluate impacted groundwater related to former disposal areas in the Mountain Area portion of the site, DuPont sampled water from several private home wells around the facility. The results of the Kanawha River sampling indicate that the contaminated groundwater is not adversely impacting the surface water quality. The dual phase systems continue to operate at both of these areas on a periodic basis.ĭuPont has collected several surface water samples in the Kanawha River to assess whether source areas located near the river are adversely impacting the surface water quality. In March 2005, DuPont began operating a dual phase extraction system in the Benzol Process Area and in another source area referred to as the SSS Process Area. The soil and groundwater is impacted with oily material from an underground tank, which was associated with the former benzol process, and has since been removed. This area, referred to as the Benzol Process Area, is located adjacent to the Kanawha River. In 2002 DuPont began evaluating remedial technologies to clean up a known area of impacted soil and groundwater in the northern portion of the Plant Area. In late 2002 DuPont implemented a Phase II investigation to identify the sources and the extent of impacted groundwater from these three areas. The activities included installing monitoring wells, and sampling soil, sediment, and groundwater. Phase I of the RFI investigation was directed toward areas which likely posed the greatest threat to human health or the environment. The Corrective Action portion of the permit requires DuPont to conduct investigations of potential releases of hazardous waste and to determine if corrective measures are necessary.ĭuPont began implementing the RCRA Facility Investigation (RFI) field program in March 2000. In September 1998 EPA issued the Corrective Action portion of the Resource Conservation and Recovery Act (RCRA) Permit (HSWA Permit No. Here is a summary of the corrective action activities at the site since 1998 that led to the Final Remedy Decision. On October 31, 2022, West Virginia Department of Environmental Protection (WVDEP) issued a Final Remedy Decision with controls which include land use and groundwater restrictions and Monitored Natural Attenuation (MNA) until drinking standards are attained in groundwater.
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