Key Environmental, Inc.

Capped Site

 
Site Remediation - Ohio Voluntary Action Program
Site Assessment, Risk Assessment, Remedy Selection, Design, Construction Management
Project Activities
  • Phase I and Phase II Site Assessments under the Ohio Voluntary Action Program (VAP)
  • Design of Soil Remedy to Mitigate Potential Health Risks
  • Post-Remediation Human Health Risk Evaluation
  • Risk Mitigation Plan to Address Potential Future Contact with Subsurface Materials
  • Ohio VAP “No Further Action” Request Letter and Supporting Documentation
The Site is a 130-acre former wood-treating and product development plant. The site assessment and remedial activities were conducted under the Ohio Voluntary Action Program (Ohio VAP). An interim measure that consisted of removal of DNAPL-impacted soil was completed during the assessment phase. DNAPL-affected soils were managed as a non-listed waste following the recommendations in USEPA’s Land Disposal Restriction Guidance #5.  Initial phases of assessment demonstrated that potential impacts were contained on-site. Subsequent assessment phases then focused on demonstration of plume stability, acquisition of data for a site-specific risk assessment and delineation of soil areas requiring potential remediation. No further action was required for groundwater and DNAPL based upon a demonstration of plume stability and incomplete exposure pathways.  The USEPA’s Area of Contamination (AOC) Policy was relied upon for soil remediation. Impacted soils from various areas of the site were consolidated and capped within the former plant process areas and inspections of the consolidation areas are conducted on a quarterly basis.   Approval of a "No Further Action" request to the Ohio Environmental Protection Agency (OEPA) is pending.
Highlights
No further action was required for groundwater and DNAPL based upon a demonstration of plume stability and incomplete exposure pathways.
The USEPA’s AOC Policy was successfully applied to provide for on-site consolidation of potentially impacted soils.