Join SERDP and ESTCP for a webinar featuring DoD-funded research efforts to characterize and understand PFAS in source zones. The first presentation will discuss the assessment and validation of analytical tools to provide information critical to overall PFAS mass discharge, perfluoroalkyl acid formation potential, and organic fluorine mass balance. The second presentation will talk about the use of real-time remote sensors to improve the efficiency of sampling and overall monitoring at PFAS vadose source zones.