This presentation explores the development of aqueous film-forming foam (AFFF) containing per- and polyfluoroalkyl substances (PFAS), focusing on the rise of next-generation C6 foams introduced in the 2000s. Promoted as environmentally friendlier alternatives to PFOS-based AFFFs, these formulations primarily feature 6:2 fluorotelomer betaine (6:2 FTAB)—a PFAS compound that remains unregulated and lacks an approved analytical method. We’ll highlight key considerations and best practices for investigating and remediating sites that are associated with C6 foams, offering practical insights for monitoring and decision-making.
Justin Hains is a Project Manager and Team Lead with Stantec’s Site Investigation, Remediation, and Risk Assessment group. Since 2016, he has led PFAS-related investigations, remediation efforts, and risk assessments across British Columbia and Canada. As a recognized PFAS subject matter expert at Stantec, Justin contributes to national and international initiatives through his role on the company’s PFAS Workgroup.
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