Integral's New PFAS Regulation Dashboard: Webinar

The regulatory environment for soil and water at the federal and state level for per- and polyfluoroalkyl substances (PFAS) is dynamic to say the least. On April 10, 2024, the U.S. Environmental Protection Agency (EPA) finalized maximum contaminant levels (MCLs) for perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorononanoic acid (PFNA), perfluorohexane sulfonic acid (PFHxS), and hexafluoropropylene oxide dimer acid and its ammonium salt (also known as GenX chemicals). EPA also finalized a hazard index MCL for a mixture of two or more of the following PFAS: perfluorononanoic acid (PFNA), PFHxS, GenX, and perfluorobutane sulfonic acid (PFBS). States have until 2029 to comply with these levels in public drinking water systems, although some states have chosen to regulate PFAS in drinking water at levels below EPA MCLs and for additional PFAS. No current federal regulations for PFAS exist or are proposed for groundwater or surface water protection. For now, the regulation of PFAS to enforceable limits in groundwater and surface water is occurring at the state level. EPA established regional screening levels for PFBS, perfluorobutanoic acid, PFHxS, perfluorohexanoic acid, PFNA, PFOS, PFOA, and GenX for soil in May 2023 for both residential and industrial exposure. Various states have enacted both enforceable and non-enforceable limits for various PFAS in soil that differ significantly from federal screening levels. States have also begun regulating PFAS concentrations in soil for their potential to leach into groundwater.
Viewers will learn how PFAS regulations at both the state and federal levels have evolved over the past 5 years. In that period, various states have developed draft, proposed, or final health-based regulatory and/or guidance values for several PFAS in drinking water, groundwater, surface water, and soil. Some states have enacted enforceable standards, whereas other states have proposed guidelines or recommended levels. The threshold values for PFAS often differ from EPA past and current health advisories and from state to state given legislative constraints and evolving scientific considerations.
Session Overview:
In this hour-long discussion, join Integral PFAS experts Logan Uselman, Ph.D., P.G., Jonathan Zadra, Ph.D., and Alexandra Meyers, MPH, BCES, as they guide you through the changing regulatory environment of PFAS. This discussion will include:
A look back at how different states and the federal government have approached regulating PFAS
An overview of how to utilize Integral’s new interactive PFAS dashboard
Example case studies from select states