In-Situ Chemical Reduction Treatment Services

Drilling, Project | Mar 18th, 2020
EFS was contracted by a client to provide in-situ chemical reduction (ISCR) treatment services for a site in Ohio. The design remedy consisted of the application of EHC® – a reagent consisting of controlled release carbon, zero-valent iron (ZVI), and nutrients for stimulating the chemical reduction process of organic compounds within groundwater – combined with … more »

Landfill Cover Improvements

Project, Remedial Construction | Mar 18th, 2020
EFS was contracted to complete civil improvements to a three-acre soil cover at a former private trucking operations facility in West Virginia in order to reduce infiltration of precipitation into a Solid Waste Management Unit.  Field activities began in October 2012 and were completed in November 2012.  EFS prepared a site-specific Health and Safety Plan … more »

Soil Mixing Services

EFS was contracted by a client to provide soil mixing services for a site in Wisconsin. Prior remediation efforts consisting of a groundwater pump and treat system operated at the site until 2004. An amendment to the Record of Decision (ROD) modified the treatment strategy to excavation or in-situ treatment of hot spot areas in … more »

Remediation System Operation & Maintenance

EFS was contracted by a client to provide Operation & Maintenance activities for an existing 31-well groundwater remediation system at a metal manufacturing facility located in Ohio. Groundwater at the site is impacted with VOCs, chromium, and hexavalent chromium contaminants in groundwater. EFS was initially contracted to review the existing groundwater treatment system and provide … more »

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