perfluorooctanoic acid
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How Low Can You Go—U.S. EPA Attempts to Answer that Question With New PFAS Health Advisory Levels
U.S. EPA issued its long anticipated interim updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace previous health advisories for these per- and polyfluoroalkyl substances (PFAS) that had been set at 70 parts per trillion (ppt). Continue reading
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U.S. EPA Updates Regional Screening Levels to Add Five New PFAS Chemicals
On May 18, 2022, U.S. EPA updated its Regional Screening Level tables to include five new per- and polyfluoroalkyl substances (PFAS). The five new PFAS compounds added to the RSL tables are hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA – sometimes referred to as GenX chemicals), perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic… Continue reading
CERCLA, Climate Change, Contamination, Emerging Contaminants, Groundwater, RCRA, Sustainability, WaterAgency for Toxic Substances and Disease, ammonium salt, CERCLA, Contamination, Corporate Environmental Lawyer, EPA, GenX chemicals, hexafluoropropylene oxide dimer acid, HFPO-DA, industrial soil, Jenner & Block, perfluorononanoic acid, perfluorooctanesulfonic acid, perfluorooctanoic acid, PFAS, PFHxS, PFNA, PFOA, PFOS, Polyfluoroalkyl, RCRA, Regional Screening Level, remediation, RSL, Steven M. Siros, tap water -
U.S. EPA Announces Plan to Tighten PFAS Reporting Requirements
In connection with the release of its 2020 Toxics Release Inventory (TRI) National Analysis which evidenced a 10% decline in environmental releases of TRI chemicals between 2019 and 2020, U.S. EPA also announced that it intends to initiate a rulemaking later in 2022 that will, among other things, remove the de minimis exemption for reporting… Continue reading