Key Environmental, Inc.
Aerial View of Site
 
Corrective Action and Optimized O&M
Investigation, CMS, Design, CQA, Operations, Maintenance and Monitoring
Project Activities
  • Site Investigation
  • Remedy Selection and Regulatory Negotiations
  • Detailed Design
  • Construction Quality Assurance
  • Operations, Maintenance and Monitoring
This 200-acre wood-treating facility has been in operation since 1946. KEY and sister company FTS provides regulatory compliance, investigation, monitoring, and operation and maintenance support. Historically, a unit-specific and facility-wide groundwater monitoring program was conducted for the facility. A total of 39 monitoring wells were sampled and analyzed (many on a quarterly basis) and annual residential well sampling and analysis was also performed. KEY revised and down-scaled this program, with subsequent concurrence from the South Carolina Department of Environmental Control (SCDHEC). KEY’s revised long-term OM&M program is estimated to be less than 1/5th of the costs of the original monitoring program. KEY also prepared a Corrective Measures Study to address potentially impacted soils and sediments. The approved remedial alternative included:
  • Physical removal and consolidation of 1,650 cubic yards of soil, with subsequent on-site consolidation in a Corrective Action Management Unit (CAMU)
  • Physical removal of 250 cubic yards of sediments and on-site consolidation of the sediments
    in the CAMU
  • Institutional controls, including deed restrictions to control current and future use at the Site
Implementation of the approved remedial alternative is currently underway, and KEY is providing Construction Quality Assurance Services on the project.
Highlights
Proposed and obtained SCDHEC approval of a streamlined groundwater monitoring plan, greatly reducing site monitoring costs.
Proposed and obtained SCDHEC approval of an on-site CAMU, to avoid costly off-site disposal of soils and sediments.