GSA 2020 Connects Online

Paper No. 255-1
Presentation Time: 10:00 AM

GEOLOGIC AND HYDROGEOLOGIC FACTORS INFLUENCING PFAS MIGRATION


DESROSIERS, Richard, GZA GeoEnvironmental Inc., 95 Glastonbury Boulevard, 3rd Floor, Glastonbury, CT 06033 and FELDMAN, Lawrence, GZA GeoEnvironmental, Inc., 249 Vanderbilt Avenue, Norwood, MA 02109

Per- and polyfluoroalkyl substances (PFAS) are a group of man-made organic compounds featuring very strong C-F bonds. PFAS compounds are ubiquitous, do not degrade in the environment, and, have unique qualities that environmental professionals need to consider during site investigations. This presentation will discuss some of the geologic and hydrogeologic factors that influence plume length, retardation factors, sorption to aquifer materials, transformations along the plume, impacts of precursors, and the need for special sampling protocols.