Former Wood Preserving Site Remedial Action
This 84-acre wood preserving site was added to the National Priorities List in 1997, due to contaminated groundwater, soil and sediment resulting from over 30 years of wood treating operations. While multiple phases of cleanup had occurred over the years, the prior remedy was deemed inadequate and in-situ solidification and stabilization (ISS) was selected as the revised remedy. After a competitive bid process, ENTACT was engaged to perform the remedial action.
The scope of work included conducting an ISS demonstration prior to full-scale implementation; removing, stockpiling and replacing clean, overburden soils; ISS of 15,400 cubic yards of NAPL-impacted soils; protecting of overhead transmission and gas lines; abandoning monitoring and injecting wells; installing concrete cloth in ditches adjacent to the railroad; hand-excavating riprap within a gas line right of way; grading of the entire site; managing stormwater; and restoring the site with vegetation.