Naval Air Station Jacksonville

US Department of Defense (DoD) has estimated significant cost savings are possible through the application of accelerated source treatment technologies at DoD sites where long-term hydraulic containment is the implemented remedy. In-situ bioremediation has been considered as one of the most cost-effective remedial options; however, the success of in-situ remediation depends heavily on effective delivery of remediation reagents. In 2011, a workshop commissioned by DoD's research and development programs, SERDP/ESTCP, identified that innovative, cost-effective techniques for delivering remedial reagents to low-permeability (low-K) zones as a high priority area requiring technology development initiatives. Electrokinetic (EK) enhanced amendment delivery is an innovative technology that uses low-voltage direct current (DC) to uniformly transport amendments through clays and silts. EK transport mechanisms (electromigration and electro-osmosis) are related to soil's electrical properties, and, therefore, not substantially affected by soil hydraulic conductivity. Geosyntec, in collaboration with NAVFAC and the US Army Corps of Engineers, was funded by ESTCP to demonstrate EK-BIOTM in achieving enhanced reductive dechlorination of PCE residing in a clay unit underlying a sandy aquifer at Naval Air Station Jacksonville (NAS JAX) in Florida.Electrokinetic (EK) enhanced amendment delivery is an innovative technology that uses low-voltage direct current (DC) to uniformly transport amendments through clays and silts. EK transport mechanisms (electromigration and electro-osmosis) are related to soil's electrical properties, and, therefore, not substantially affected by soil hydraulic conductivity. Geosyntec, in collaboration with NAVFAC and the US Army Corps of Engineers, was funded by ESTCP to demonstrate EK-BIOTM in achieving enhanced reductive dechlorination of PCE residing in a clay unit underlying a sandy aquifer at Naval Air Station Jacksonville (NAS JAX) in Florida.