PlumeStop Cost-Efficiently Eliminates PFAS Long-Term

Case study highlights:

• PFAS concentrations reduced to non-detect within 3 months post-application, results maintained more than 8 years later
• In situ treatment reduces lifecycle remediation costs vs. pump & treat
• Low Injection Pressures less than 25 PSI maintained throughout PlumeStop direct push application
• Sampling confirms PlumeStop fully distributed through the treatment zone
• Modeling indicates that PlumeStop will halt PFAS migration out of the treatment zone for more than 60 years

This case study reviews the first known full-scale in situ PFAS treatment worldwide completed in 2016 at a manufacturing and former firefighting training site in Ontario, Canada, where aqueous film-forming foams (AFFF) were used. A single application of PlumeStop resulted in a significant reduction of contaminant concentrations, achieving non-detect levels within three months post-application and maintaining these reductions for over eight years. An independent fate and transport modeling expert predicts that PlumeStop will halt PFAS migration out of the treatment zone for more than 60 years, preventing exposure risk and reducing liabilities for the site owner.