Given the widespread contamination, persistence, and environmental impacts associated with the use of aqueous film forming foams (AFFF) containing per- and ... replace old technologies in ...

Replacing the legacy AFFF (Aqueous Film Forming Foam) reduces the risk of mission-related contamination to drinking water sources. The new foam is perfluorooctanesulfonic acid (PFOS) free ...

The chemicals were used in Aqueous Film-Forming Foam (AFFF), a foam commonly used by firefighters to suppress fires. The city says the foam was released over the years into its water system and soil.