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This article published in Aviation Pros discusses how PFAS contamination in groundwater is becoming a growing concern for commercial airports, and how in situ colloidal activated carbon (CAC) remedial approaches are eliminating risk at airport facilities.

Article highlights:

  • CAC applied directly into the groundwater forms a permeable reactive barrier (PRB) that intercepts PFAS contaminants, preventing exposure
  • More than one hundred CAC treatments for PFAS projects are currently in the implementation or planning stages
  • CAC field installations to treat PFAS applied thus far are meeting performance expectations and are expected to continue to perform for decades

Recent private well PFAS contamination cases near commercial airports in the U.S. have been reported from Massachusetts to Alaska. For example, in Ohio, one of only two public water supply wells in the state with PFAS concentrations above the EPA Health Advisory Limit is downstream of a commercial airport. Upon discovery, testing of nearby private water followed and detected PFAS. This scenario can be expected to repeat in many communities over time. After decades of aqueous film forming foam (AFFF) use either for training exercises or actual fire emergencies, some level of PFAS contamination can be reasonably assured at all aviation facilities. And in many cases, these "source areas" can continue to threaten downstream drinking water resources without a sound and effective treatment strategy.

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About the Author:

REGENESIS Remediation Solutions Ryan Moore
PFAS Program Manager, REGENESIS
Ryan Moore has 20 years of experience as an environmental project manager and laboratory account executive relating to multimedia contamination sites throughout the U.S. His experience focused on site investigations of soil and groundwater contamination, corrective action evaluations, operation & maintenance of remediation systems, large soil removal remedial projects, in situ groundwater and soil treatment, vapor intrusion assessments, environmental laboratory operations such as QA/QC evaluations, data interpretations, and business development. Ryan holds a B.S. of Environmental Studies from Manchester College, North Manchester, IN.