Regulatory jurisdictions are establishing increasingly stringent, health-based criteria for per and polyfluoroalkyl substances (PFAS) in groundwater with the aim of protecting receptors at the point of exposure. The practicability of attaining these criteria in groundwater and the distance from source at which these regulatory criteria are attained without intervention have received little evaluation. Empirical fate & transport modeling using available data sources demonstrates expected distances to attainment, as well as the sensitivity of that attainment distance to various regulatory criteria and guidance values. The statistical distribution of these PFAS data sets also informs the approach and practicability of potential groundwater remedies.
