In situ biogeochemical reduction solution for large TCE plume: Threat to river mitigated effectively

At a former manufacturing facility high levels of chlorinated solvents had been released into the groundwater, creating a large plume extending to the White River. A combined in situ biogeochemical reduction solution rapidly mitigated the threat to river and saved the client approx. $380,000 in project cost.

Wilcox Environmental Engineering, Inc. was hired by the responsible party to investigate the site. After evaluating the remedial options, Wilcox worked with REGENESIS to design a solution for in situ remediation of the TCE plume using biogeochemical reduction in the onsite plume area and sorption-enhanced chemical reduction in the offsite plume. This approach entailed placing permeable reactive barriers (PRBs) perpendicular to groundwater flow in strategic plume areas.