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On November 17, 2022, the Independent Regulatory Review Commission (“IRRC”) approved the Pennsylvania Environmental Quality Board’s (“EQB”) new safe drinking water maximum contaminant levels (“MCLs”) for perfluorooctanoic acid (“PFOA”) and perfluorooctane sulfonic acid (“PFOS”) under the Pennsylvania Safe Drinking Water Act regulations at 25 Pa. Code Chapter 109.  The regulations will establish MCLs of