- Program scope is management and closure of fifty three (53) sites
- Pre-funded lump sum seven (7) year contract
- Sites in North America, Central American, Middle East, and Asia
- Varied site conditions, lithology, constituents of concern, and chemical concentrations
- Treatment technologies include interceptor trenches, in-situ chemical reduction, and in-situ oxidation
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ENTACT has performed in-situ groundwater treatment using chemical oxidation reagents at sites located in Canada, Mississippi, Wyoming, and Texas. These sites were impacted with chlorinated solvents and/or hydrocarbons. A variety of reagent installation techniques and materials were used depending on site conditions, lithology, constituents of concern, and chemical concentrations to reduce contaminant mass with subsequent polishing using biological agents.
- Designed and installed an eight extraction point SVE system and associated soil air handling and treatment system to address CVOCs in site soils
- Excavated and stabilized cadmium in the CVOC impacted soils to remove cadmium as an UHC in areas where soils could not be treated in-situ
- Performed site restoration and operation and maintenance of the SVE system
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ENTACT designed and installed an eight extraction point SVE system and associated soil air handling and treatment system to address CVOCs in Site soils. System lateral lines and extraction point valving was constructed below grade to allow for continued use of the area for facility parking. In areas where soils could not be treated in-situ, cadmium impacted material was excavated and stabilized. Additional activities included demolition of an on-site building, site restoration, and Operation and Maintenance of the SVE system.
