As a reminder, the Environmental Protection Agency (EPA) proposed a rule last month that would enhance (1) reporting of perfluoroalkyl and polyfluoroalkyl substances (PFAS) to the Toxics Release Inventory (TRI)

Continue Reading Comment Period Deadline Approaches for EPA’s Proposed Rule Subjecting Companies to Enhanced PFAS Reporting and Notification Requirements

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 Rulemakings

New York’s drinking water standards for emerging contaminants are among the most stringent in the country, including standards issued in 2020 for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS)

Continue Reading New York State Proposes to Establish Drinking Water Maximum Contaminant Levels for Four Additional PFAS

We previously reported an expected timeline for promulgation of Delaware’s maximum contaminant levels (MCLs) for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that was generally in line with the

Continue Reading Update: A New Expected Timeline for Implementation of Delaware’s PFOA and PFOS Maximum Contaminant Levels

On September 15, 2022, the U.S. Environmental Protection Agency (“EPA”) filed a motion to dismiss the American Chemistry Council (“ACC”)’s petition for review challenging EPA’s interim Lifetime Health Advisory Levels

Continue Reading EPA Files Motion to Dismiss ACC Petition for Review of PFOA and PFOS HALs and Reports Proposed MCLs are Expected in 2022