• Successful installation of a 230 ft PlumeStop® barrier to prevent further migration of PFAS, as part of Swedish government-funded study.
• PFAS concentrations reduced by 97% to 99% downgradient of the barrier.
• This collaborative project, delivered by Granitor Miljöteknik (supported by Geokompaniet and REGENESIS), demonstrates how offsite receptors can be protected using a zero-waste, naturally powered approach.

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. A 70m-long PlumeStop barrier was installed in the forest by the fire training area to prevent further migration of the PFAS. The results to date have shown a dramatic reduction in PFAS concentrations. Within the first month, total groundwater PFAS concentrations at the barrier were reduced by over 95%, relative to pre-barrier concentrations. Approximately six months after installation, the average reduction in the wells within the barrier reached 99.6%.