This presentation will provide an overview of the most pressing risk, remediation, and waste management issues associated with PFAS (perfluorinated alkyl substances).  There are thousands of individual PFAS chemicals, although only a handful have been studied or regulated. The webinar will discuss the toxicity and the adverse health effects linked to PFAS, regulatory management strategies, and current approaches for managing and remediating and PFAS-impacted soil and ground water. In addition, approaches used by the US Air Force to evaluate and manage PFAS contamination at their facilities will be discussed.