Environmental Law
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07.31.2026
Press Releases
Archer Partner Maureen Coghlan Admitted to U.S. Supreme Court Bar
Archer & Greiner partner Maureen T. Coghlan was recently sworn into the Bar of the Supreme Court of the United States, granting her the ability to represent clients before the nation’s highest court.
06.18.2026
Articles
EPA Proposes Rule to Repeal Federal Drinking Water Regulations for Certain PFAS Compounds
In an article written for the Legal Intelligencer, partner Charlie Dennen explains that the U.S. Environmental Protection Agency has proposed a rule to repeal federal drinking water regulations for several PFAS compounds—specifically PFHxS, PFNA, GenX (HFPO-DA), and the Hazard Index used for mixtures involving those chemicals and PFBS—arguing that the prior standards were promulgated through an “unlawful process” and did not properly follow the Safe Drinking Water Act’s required steps for setting enforceable limits. The article outlines the EPA’s prior 2024 rule establishing maximum contaminant levels for certain PFAS, the agency’s subsequent reconsideration in 2025, and its current position that the mixture-based Hazard Index and several individual PFAS limits exceeded statutory authority and misapplied feasibility and risk-assessment requirements. Charlie further highlights the EPA’s reliance on the Supreme Court’s decision in Loper Bright Enterprises v. Raimondo, which eliminated Chevron deference and requires courts to independently interpret statutory meaning, increasing legal risk for agency rulemaking. While the proposal would remove monitoring and treatment obligations for the affected PFAS, he notes the relief may be temporary because the EPA has indicated it will continue evaluating these substances for possible future regulation, even as separate standards for PFOA and PFOS remain in place and continue to drive most PFAS-related compliance obligations.
06.05.2026
Press Releases
Archer & Greiner Earns Chambers USA 2026 Recognition with Three Ranked Practice Areas and Eight Individually Ranked Attorneys
Archer & Greiner (“Archer”) is pleased to announce its recognition in Chambers USA 2026, reflecting the firm’s depth across key practices and notable individual achievements.


























