News & Analysis as of

Final Rules Drinking Water Toxic Chemicals

K&L Gates LLP

EPA Provides Update on PFAS Drinking Water Standards

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On 14 May 2025, Environmental Protection Agency (EPA) Administrator Lee Zeldin announced the agency’s plan to address the National Primary Drinking Water Regulations (NPDWR) for per- and polyfluoroalkyl substances (PFAS)...more

Mitchell, Williams, Selig, Gates & Woodyard,...

PFOA/PFOS Safe Drinking Water Act National Primary Drinking Water Regulations: U.S. Environmental Protection Agency Extends...

The United States Environmental Protection Agency (“EPA”) announced in a May 14th news release what it describes as an action that will “provide regulatory flexibility and holistically address” the perfluorooctanoic acid...more

Farella Braun + Martel LLP

EPA Announces It Will Keep Drinking Water Limits for PFOA and PFOS, But Rescind Limits for Four Other PFAS Compounds

On May 14, 2025, EPA issued a news release (available here) stating that the agency will maintain the Safe Drinking Water Act (SDWA) National Primary Drinking Water Regulations (NPDWRs) promulgated in April 2024—but only with...more

Best Best & Krieger LLP

EPA Announces Plan to Modify PFAS Drinking Water Rule and Extend Compliance Deadline

On May 14, 2025, the U.S. Environmental Protection Agency (EPA) announced its latest plans to address PFAS contamination in drinking water. Specifically, the EPA plans to retain the National Primary Drinking Water Regulation...more

Cozen O'Connor

Democratic AGs Pour Support into Limiting PFAS in Drinking Water

Cozen O'Connor on

A group of 18 Democratic AGs filed an amicus brief with the U.S. Court of Appeals for the D.C. Circuit in American Water Works Association v. EPA (No. 24-1188) supporting the EPA’s defense of its Final Rule establishing...more

MG+M The Law Firm

EPA Argues PFAS Maximum Contaminant Levels Are Lawful and in Accordance With Statutory Procedure

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On April 10, 2024, the United States Environmental Protection Agency (EPA or Agency) promulgated the first-ever national, legally enforceable maximum contaminant levels (MCLs) for six per- and polyfluoroalkyl substances...more

Paul Hastings LLP

PFAS Legislative & Regulatory Developments Fourth Quarter 2024

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Per- and polyfluoroalkyl substances (PFAS) are a large class of synthetically created organic chemical compounds that have been at the forefront of complex environmental and legal issues in recent years. While many PFAS...more

Holland & Knight LLP

2024 Midyear PFAS Regulatory Update: Final Rules Recently Issued by EPA and What's to Come

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Just past the halfway point of 2024, it's already been a busy year for those following regulatory developments related to per- and polyfluoroalkyl substances (PFAS). Building on its plans in the 2021 PFAS Strategic Road Map...more

BCLP

PFAS in Groundwater: State-by-State Regulations - May 2024

BCLP on

In the absence of federal cleanup standards for per- and polyfluoroalkyl substances (“PFAS”) in groundwater, several states have started the process of regulating PFAS in groundwater themselves. As a result, states have...more

Holland & Knight LLP

EPA Designates 2 PFAS Compounds as Hazardous Substances

Holland & Knight LLP on

The U.S. Environmental Protection Agency (EPA) on April 19, 2024, announced its Final Rule designating two per- and polyfluoroalkyl substances (PFAS) compounds – perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid...more

Pillsbury - PFAS Observer

EPA Finalizes Rule Designating PFAS Substances as Hazardous Constituents Under CERCLA

On April 19, 2024, the Environmental Protection Agency (EPA) finalized its long-awaited rule designating two PFAS compounds, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), as “hazardous substances”...more

Troutman Pepper Locke

PFAS Designated as CERCLA Hazardous Substances

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On April 19, the U.S. Environmental Protection Agency (EPA) released a pre-publication version of the long-awaited final rule designating two per- and polyfluoroalkyl substances (PFAS) as “hazardous substances” under the...more

Mitchell, Williams, Selig, Gates & Woodyard,...

PFOA/PFOS/CERCLA: U.S. Environmental Protection Agency Final Rule Designating as Hazardous Substances

The United States Environmental Protection Agency (“EPA”) issued a prepublication version of a Final Rule that would designate two of the Per-and polyfluoroalkyl substances (“PFAS”) as Comprehensive Environmental Response,...more

Perkins Coie

EPA’s Landmark PFAS Drinking Water Standards

Perkins Coie on

The final rule on the National Primary Drinking Water Regulation (NPDWR) for per- and polyfluoroalkyl substances (PFAS) was announced by the U.S. Environmental Protection Agency (EPA) on April 10, 2024. This Update summarizes...more

Bricker Graydon LLP

U.S. EPA Releases First-Ever Final PFAS Drinking Water Rule

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On April 10, 2024, U.S. EPA issued the first-ever, national drinking water standard for a group of chemicals commonly referred to as “PFAS” or “forever chemicals”. PFAS generally refers to a family of chemicals known as “per-...more

Verrill

EPA Issues Final National Drinking Water Standard for Six PFAS Compounds

Verrill on

On April 10, 2024, after receiving nearly 122,000 comments on the proposed rule, the United States Environmental Protection Agency (“EPA”) announced its final National Primary Drinking Water Regulation (“NPDWR”) for six...more

Greenberg Glusker LLP

USEPA Announces Final Drinking Water Standards for Six PFAS

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In much anticipated news for followers of PFAS, or so-called "forever chemicals," USEPA announced today final, enforceable drinking water standards (MCLs) for six PFAS, including PFOS and PFOA at 4 parts per trillion. EPA...more

Pillsbury - PFAS Observer

EPA Finalizes Stringent Regulation of PFAS in Drinking Water

On April 10, 2024, the Environmental Protection Agency (EPA) finalized a National Primary Drinking Water Regulation under the Safe Drinking Water Act to establish Maximum Contaminant Levels (MCLs) for five per- and...more

Stinson LLP

EPA Sets First-Time Limits for Six PFAS in Drinking Water

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On April 10, 2024, the U.S. Environmental Protection Agency (EPA) released its final “PFAS National Primary Drinking Water Regulation Rulemaking” (the Rule). This marks the first time the EPA has set enforceable limits for...more

ArentFox Schiff

EPA Finalizes National Primary Drinking Water Regulation for Six PFAS

ArentFox Schiff on

On April 10, the US Environmental Protection Agency (EPA) announced its final PFAS drinking water rule, setting new drinking water standards for six per- and polyfluoroalkyl substances (PFAS). ...more

Farella Braun + Martel LLP

EPA Announces Enforceable Contaminant Levels for Six PFAS in Drinking Water

On April 10, 2024, EPA announced the final National Primary Drinking Water Regulation (NPDWR) establishing legally enforceable Maximum Contaminant Levels (MCLs) and health-based, non-enforceable Maximum Contaminant Level...more

Mitchell, Williams, Selig, Gates & Woodyard,...

PFAS/Safe Drinking Water Act: U.S. Environmental Protection Agency Issues Final National Primary Drinking Water Standards

The United States Environmental Protection Agency (“EPA”) on April 11th issued final Safe Drinking Water Act (“SDWA”) National Primary Drinking Water Standards for six PFAS which include:...more

Akerman LLP

EPA Establishes First-Ever Drinking Water Standards for PFAS (Forever Chemicals)

Akerman LLP on

On April 10, 2024, the Biden administration set the first-ever national drinking water standards for six per- and polyfluoroalkyl substances (PFAS) in drinking water. PFAS are a large class of thousands of synthetic...more

Best Best & Krieger LLP

U.S. Environmental Protection Agency Finalizes New Drinking Water Regulations for Six PFAS Chemicals

On April 10, 2024, the U.S. Environmental Protection Agency (EPA) issued final new national primary drinking water regulations for six per- and polyfluroralkyl substances (PFAS). The regulations impose Maximum Contaminant...more

Nossaman LLP

Keeping America’s Water Safe to Drink – EPA Announces PFAS MCL

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On April 10, 2024, the U.S. Environmental Protection Agency (EPA) announced its final National Primary Drinking Water Regulation (NPDWR) for six per- and polyfluoroalkyl substances (PFAS). This regulation represents a key...more

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