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    Implementing a PlumeStop Barrier for PFAS Plume Control at Örnsköldsvik Airport

    This project was coordinated and led by the Geological Survey of Sweden (SGU) and Swedish Geotechnical Institute (SGI) and financed through the Government of Sweden’s Grant no. 1:4 for Remediation and Restoration of Contaminated Sites.

    Case Study Highlights

    • A 70m-long PlumeStop® barrier has been successfully installed to prevent further migration of PFAS, as part of a Swedish government-funded study.

    • PFAS concentrations have been reduced by 97% to 99% downgradient of the barrier.

    • This initial-phase application, focused on the highest mass-flux section of the PFAS plume, demonstrates how offsite receptors can be protected using a zero-waste, naturally powered approach to halt PFAS migration.

    • Project delivery by Granitor Miljöteknik, supported by Geokompaniet and REGENESIS.

    Read the Case Study

    At Örnsköldsvik Airport in northeastern Sweden, significant groundwater PFAS contamination had been observed, primarily originating from a fire training ground where PFAS-containing Aqueous Film-Forming Foam (AFFF) was discharged during firefighting exercises. Groundwater samples revealed high PFAS concentrations ranging from 100,000 to 200,000 ng/L, with perfluorooctane sulfonate (PFOS) making up approximately 75% of the detected PFAS mixture.