On Friday, August 26, 2022, U.S. EPA announced its intent to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as CERCLA hazardous substances. U.S. EPA posted a pre-publication notice for the Federal Register listing, including Supplemental Information describing the basis for designation. This rulemaking marks the first time U.S. EPA has used its authority under […]
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PFAS Health Advisories Published/Updated for 4 PFAS
U.S. EPA has published and/or updated Health Advisories (HAs) for the following four PFAS: Perfluorooctanoic Acid (PFOA) – 0.004 parts per trillion (ppt) Perfluorooctane Sulfonate (PFOS) – 0.02 ppt Hexafluoropropylene Oxide (HFPO) Dimer Acid and its Ammonium Salt, also known as “GenX chemicals” – 10 ppt Perfluorobutane Sulfonic Acid and its Potassium Salt (PFBS) – […]
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USEPA Updates Regional Screening Levels with 14 PFAS
USEPA’s May 18, 2022, Regional Screening Level (RSL) update included the anion and acid forms of several per- and polyfluoroalkyl substances (PFAS), providing residential and industrial soil screening levels; soil screening levels for protection of groundwater; and tapwater screening levels. 14 PFAS included in USEPA RSL Update ammonium perfluoro-2-methyl-3-oxahexanoate hexafluoropropylene oxide dimer acid (HFPO-DA) (aka, […]
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EnSafe, as part of AECOM-led Joint Venture, Wins Navy CLEAN Contract Again
Resolution Consultants JV to provide environmental services under the Comprehensive Long-Term Environmental Action Navy Contract for a second term. EnSafe is excited to announce that its long-standing Resolution Consultants joint venture with AECOM has been awarded an indefinite-delivery, indefinite-quantity contract by the Naval Facilities Engineering Systems Command (NAVFAC) Atlantic to deliver environmental studies, investigations, and […]
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EnSafe’s PFAS expert, Dr. Ioana Petrisor, to Address Complexities of PFAS Fingerprinting Investigative Techniques
EnSafe’s very own PFAS expert Dr. Ioana Petrisor will be speaking at the 2022 AEHS Conference on Soil, Water, Energy, and Air, which takes place virtually this year. Her talk, Challenges and Advances in Per- and Polyfluoroalkyl Substances (PFAS) Fingerprinting, is scheduled for March 17 at 8:30 AM Pacific time (11:30 AM EST), and will […]
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