This case study reviews a former dry-cleaning site in Martinsville, Indiana that had a perchloroethylene (PCE) release which contaminated the community’s groundwater with concentrations in excess of 370 parts per billion (ppb). The sand and gravel aquifer created a challenging problem due to the high flow regime, with a groundwater velocity of approximately 1,560 ft/year and oxygenated geochemistry which had limited natural attenuation.  After a thorough evaluation of possible technologies, environmental consulting firm Wilcox Environmental Engineering determined that PlumeStop® Liquid Activated Carbon™ in combination with HRC® and BDI Plus® could prevent the plume from migrating and would work in the well-oxygenated, sand and gravel lithology.

Martinsville, IN

Case study highlights:

  • PlumeStop effectively treated the plume in the well-oxygenated, sand and gravel lithology
  • 99% reduction of PCE ~30 days after the application in key monitoring wells
  • Demonstration of PRB leading to full-scale treatment in Spring 2020