This webinar will provide an overview of current and emerging regulations surrounding per- and polyfluoroalkyl substances (PFAS) in stormwater and wastewater permitting, highlighting how regulatory frameworks are evolving to address this persistent environmental concern. Practical methods for identifying PFAS at industrial facilities, including effective source investigation techniques and proper sampling protocols will be reviewed. The webinar will explore common sources and industrial uses of PFAS, helping facilities across multiple sectors understand where these compounds are likely to be present.