On August 26, 2022, the US Environmental Protection Agency (EPA) issued a proposal to designate two per- and polyfluoroalkyl substances (PFAS) — perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), and their salts and structural isomers, as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as Superfund. This proposal follows
Background The American Society for Testing and Materials (ASTM) revised its Standard for Environmental Site Assessment (ESA) to new Standard E1527-21 in November 2021. One of the significant revisions in ASTM E1527-21 is the inclusion of per- and polyfluoroalkyl substances [PFAS] and other emerging contaminants in the Standard for the first time. As described in
The following is a list of EHS Support’s 2022 Brownbag Series topics, in which we discuss our various Strategic Growth Projects (SGPs). These projects, which are part of our long-term growth plan, are focused on addressing anticipated client needs, including research in regulatory trends and changes, as well as scientific advancements. EHS Support’s team is
The fifth Unregulated Contaminant Monitoring Rule (UCMR 5) was published by the US Environmental Protection Agency (EPA) December 27, 2021. The Rule requires public drinking water systems to test for all 29 per- and polyfluoroalkyl substances (PFAS) for which analytical methods exist, where those systems supply 3,300 or more customers; systems serving less than 3,300
Three members of the EHS Support Sediment and Risk-Assessment Group will be presenting virtually at the SETAC North America 42nd Annual Meeting this November 14-18. On Monday, November 15, Chrissy Peterson, Sediment & Risk Assessment Group team manager and Toxicology & Human Health Risk Assessment team leader, will be co-chairing the session “Background: Soil, Sediment,
