On November 15, 2022, in response to a challenge by 3M, the Michigan Court of Claims invalidated the drinking water MCLs and attendant groundwater standards for several PFAS substances, including
Continue Reading Michigan Court Rules State PFAS Drinking Water Regulations Lacked Adequate Consideration of Costs, with Implications for Challenges to Federal PFAS RulemakingsPFBS
New Pennsylvania DEP PFOA and PFOS Cleanup Standards are Now Effective
By Robert J. Schena on
New Pennsylvania Department of Environmental of Protection (“PADEP”) regulations that include new cleanup standards for three per- and polyfluoroalkyl substances (PFAS) were published in the Pennsylvania Bulletin on Saturday, November…
Continue Reading New Pennsylvania DEP PFOA and PFOS Cleanup Standards are Now Effective
EPA Publishes Draft PFAS Analytical Method for Array of Environmental Media
By Robert J. Schena on
This past August, EPA published Draft Method 1633 – Analysis of Per- and Polyfluoroalkyl Substances (“PFAS”) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS. Once, finalized, this single…
Continue Reading EPA Publishes Draft PFAS Analytical Method for Array of Environmental Media
PA Independent Regulatory Review Commission Approves Rulemaking with PFOA and PFOS Cleanup Standards
By Robert J. Schena on
On September 23, 2021, the Pennsylvania Independent Regulatory Review Commission (IRRC) approved a final form rulemaking that revises the Pennsylvania Department of Environmental Protection’s (PADEP) regulations that implement that…
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New Pennsylvania PFOS and PFOA Cleanup Standards Reach Final Major Regulatory Hurdle
By Robert J. Schena on
The process to revise regulations in Pennsylvania is often long and involved, and the Pennsylvania Department of Environmental Protection’s (PADEP) revision to its Act 2 Chapter 250 regulations to incorporate…
Continue Reading New Pennsylvania PFOS and PFOA Cleanup Standards Reach Final Major Regulatory Hurdle