Integrated AFFF Solutions Firetruck Image

FAA New Guidance: An Update on Aircraft Rescue & Firefighting Vehicle AFFF Cleanouts

April 30, 2024

By: Dave Kempisty, Ph.D., P.E.

We wanted to share a brief update on our recent efforts to minimize waste and reduce residual Per- and polyfluoroalkyl substances (PFAS) post-cleaning (or rebound) in Aircraft Rescue and Firefighting (ARFF) vehicle Aqueous Film Forming Foam (AFFF) cleanouts.

Here’s what you should know.

You may have seen the recent FAA CertAlert regarding single water rinsing. This aligns closely with the approach the Department of Defense is taking. However, relying solely on a single water rinse can create a misleading sense of 100% liability protection, as there will still be residual PFAS in the trucks (rebound).

ECT2, a Montrose subsidiary, is an innovative leader in the industry for waste reduction and PFAS treatment. With an extensive R&D facility, we’ve been actively developing solutions and methods for AFFF system cleaning to mitigate rebound.

We recently conducted an ARFF truck cleaning in South Carolina using our technology, and the results were promising:

  • Our rinse solution and methods demonstrated less than a 2% rebound after 33 days, compared to the 50% rebound seen with a triple water rinse. Considering the new FAA guidance advocating for a single rinse of water, this presents a significant advantage in reducing liability associated with truck cleaning and rebound management.
  • Additionally, our solution offers cost savings, as the solution generates less waste than a conventional triple rinse. Refer to the image below. (Blue bars represent a triple water-only rinse with a 50% rebound 33 days after cleaning; green bars indicate only a 2% rebound 33 days after cleaning).

Next Steps

If you’re interested in learning more about our process and rebound results, please contact our team.

Dave Kempisty, Ph.D., P.E.
Director of Emerging Contaminants
Dave is a licensed engineer with over 20 years of experience in the water treatment and environmental remediation space. His current role at ECT2 focuses on the use of novel technologies for the removal of emerging contaminants such as PFAS, 1,4 dioxane, and carcinogenic volatile organics from the environment. Before this, he spent 22 years in the United States Air Force as an environmental engineer, occupational health consultant, and assistant professor. As editor of two books on per- and polyfluoroalkyl substances and author of over 20 peer-reviewed papers and presentations on a variety of environmental topics, Dave provides a well-balanced perspective on today’s environmental issues.

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