The Department of Defense’s (DoD’s) goal to use per- and polyfluoroalkyl substance (PFAS)-free firefighting formulations requires that existing firefighting systems that have previously contained PFAS-based agents be cleaned prior to use with PFAS-free formulations. With a large amount of foam delivery systems in aircraft hangars and on firefighting vehicles, replacing or cleaning this equipment would be very costly. Development of a method to remove all trace elements of the current firefighting agent from its existing systems, thereby eliminating the need to replace equipment, would be a substantial cost savings for the DoD.
In 2020, ESTCP began funding a group of projects that will demonstrate and validate environmentally sustainable methods for cleaning firefighting delivery systems in aircraft hangars or on firefighting vehicles as well as any rinsate or residue derived from the cleaning process. Described below are the six projects that were selected for funding.
Summaries of these demonstration projects are available on the SERDP and ESTCP website and all reports originating from these efforts will be available from the project webpages.