Background

A former industrial site in Ontario Canada, the location also held firefighting training exercises using PFAS-containing aqueous film forming foams (AFFF) during the 1970s and 1980s. Typical of many firefighting-training sites, the PFAS released from the foam moved through the subsurface and impacted the shallow groundwater. Baseline concentrations of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) were detected in groundwater at concentrations up to 3,260 ng/L and 1,450 ng/L, respectively. The PFAS and residual petroleum hydrocarbons were contained within a shallow, unconfined, silty sand aquifer containing a prominent coarser sand lens. PFAS appeared to be migrating away from the suspected source area over time based on the concentration profile relative to the groundwater flow direction. InSitu Remediation Services Limited (IRSL), Canada’s leading and most experienced in-situ remediation company, completed the PFAS remediation program in collaboration with REGENESIS.

PFAS remediation

PlumeStop Eliminates PFAS for Seven Years