Challenging fast-moving, high concentration chlorinated solvent plume effectively treated

Case study highlights

  • PlumeStop PRB treats CVOCs for >3 years in high-mass-flux aquifer
  • Design Verification Testing (DVT) used passive flux samplers (PFS) to better understand contaminant mass flux
  • Permeable reactive barrier installed using advanced colloidal technologies demonstrates pilot test’s effectiveness

A permeable reactive barrier (PRB) incorporating PlumeStop® and S-MicroZVI® technologies was applied to a fast-moving, high-concentration chlorinated solvent plume in groundwater as part of an initial field-scale application to assess the approach’s effectiveness. Within a month of the application, the highest concentrations were reduced by 98 percent. The single injection has maintained at least 99% reductions of chlorinated ethenes for 3.5 years in the barrier treatment wells. Hamp, Mathews & Associates, Inc. (HMA), working on behalf of EGLE, collaborated with REGENESIS for developing a remedial approach to address the contaminant plume.

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