Effective In-Situ Treatment of a 1km PCE Plume in Finland

Case study highlights:

In Eastern Finland, a fast-moving PCE (perchloroethene) plume beneath a metal-processing facility was remediated to reduce impacts on a municipal drinking water source.

• PCE concentrations were reduced to below the drinking water limit at the municipal water supply well (concentration reductions of approximately 80% in the plume within months and 90 to 95% by 18 months)
• Results indicate that the combined treatment approach can be successfully applied in cold groundwater aquifers with low organic carbon content
• Integrated source area grid treatment (ERD) and plume barrier treatment (PlumeStop^®) is an effective strategy for treating elongated chlorinated solvent plumes