United States: Water

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Federal PFAS Regulation: 2025 Activities And 2026 Anticipated Actions

Now that we have entered the second year of Administrator Zeldin's tenure, BCLP looks back at EPA's actions in 2025 and previews what regulated industry may expect in 2026.

United States Environment

BC

Bryan Cave Leighton Paisner

Court Turns On The Tap For Potential Inverse Condemnation Claims Against Water Suppliers

Courts have historically denied inverse condemnation claims by property owners against water suppliers where the quality of water or chemicals used allegedly caused corrosion or damage to water pipes.

United States Energy

N

Nossaman LLP

California Environmental Law & Policy Update

The Trump administration this Thursday announced the repeal of the 2009 endangerment finding — a conclusion based on decades of science that carbon dioxide and other greenhouse gases endanger public health and welfare.

United States Environment

AM

Allen Matkins Leck Gamble Mallory & Natsis

EPA Announces PFAS Coordinating Group

The U.S. Environmental Protection Agency (EPA) announced on February 6, 2026, a list of significant actions that the Agency has taken in the first year of the Trump Administration to combat risks...

United States Environment

BC

Bergeson & Campbell

Baker Botts' 39th Annual Environmental Seminar – Key Takeaways From Breakout Session #1

United States Environment

BB

Baker Botts LLP

Reforming "WOTUS," "Nationwide Permitting," & Other Major Priorities At The Corps Of Engineers In The Trump Administration

United States Energy

BB

Baker Botts LLP

As Federal Water Regulations Recede, California's Permitting Tide Rises

United States Energy

FB

FBT Gibbons

One Minute Matters [Video]: What Counts As Federally Protected Water Under EPA's Latest Proposal (With Todd Schebor)

United States Environment

D

Dykema

Washington Update: Sustainable Energy & Infrastructure — February 2026

United States Energy

M

Mintz

Key Takeaways From The California Public Utilities Commission SB 254 Wildfire Report

United States Environment

N

Nossaman LLP

The Impact Of Governor Newsom's Proposed Budget On Water Projects

United States Energy

N

Nossaman LLP

New EPA Proposal Seeks To Adopt A More Restrictive Section 401 Framework

United States Environment

KG

K&L Gates LLP

Gillespie, Littlejohn Tackle Water And Environmental Policy On Florida Specifier Podcast

United States Environment

Aa

Adams and Reese

Alpha Beneath The Asphalt: Tapping Into Underground Water Infrastructure's Trillion Dollar Opportunity

United States Energy

AM

Alvarez & Marsal

Congress Proposes Major Overhaul Of WARN: What Employers Need To Know About The Fair Warning Act

United States Employment

PR

Proskauer Rose LLP

What Foundations And Other Nonprofits Need To Know About The Foreign Agents Registration Act

United States Government

W

WilmerHale

Seventh Circuit Roundup: What Recent Decisions Reveal About Pleading, Intent, And Immunity (Podcast)

United States Litigation

BT

Barnes & Thornburg LLP

New Year's Resolutions For Mediators (That Actually Change Outcomes)

United States Litigation

J

JAMS

Mediator-and Arbitrator-Retained Experts In Construction Or Business Disputes

United States Litigation

J

JAMS

The Pendulum Swings Back: Proposed Clean Water Act Section 401 Rule Resurrects Key Elements Of 2020 Rule

On January 15, the U.S. Environmental Protection Agency (EPA) announced a Proposed Rule to revise its Clean Water Act (CWA) Section 401 water quality certification regulations.

United States Energy

BD

Beveridge & Diamond

Data Centers Are The New Industrial Neighbors: Managing Risk Of Nuisance And Environmental Litigation

Earlier this week, the New Orleans City Council approved a one-year moratorium on new data centers while the city revisits how (and whether) to regulate them.

United States Environment

LL

Liskow & Lewis

Major Colorado Water Law Ruling: State Alone Can Enforce Water Waste Statute

On Jan. 26th, the Colorado Supreme Court issued a significant water law decision that clarifies how Colorado property owners can pursue claims against neighbors who waste water and flood their land.

United States Energy

CH

Clark Hill

DWR Releases Subsidence Best Management Practices

On January 21, 2026, the California Department of Water Resources (DWR) published its Best Management Practices of the Sustainable Management of Groundwater – Land Subsidence (Subsidence BMPs).

United States Energy

N

Nossaman LLP

Upcoming Reporting Deadline For California Water Right Holders To Submit Annual Use And Diversion Reports To New CalWATRS Database

United States Energy

AM

Allen Matkins Leck Gamble Mallory & Natsis

D.C. Circuit Rejects EPA's Bid To Partially Vacate PFAS Drinking Water Rule

United States Environment

LL

Liskow & Lewis

EPA Proposes Limitations To States' Clean Water Act Section 401 Permitting Power

United States Environment

N

Nossaman LLP

Federal PFAS Regulation And Litigation: Developments, Implementation, And What To Expect In The Second Year Of The Trump Administration

United States Environment

MG

Manko, Gold, Katcher & Fox

How PFAS Exposure Is Driving A New Era Of Personal Injury Claims

United States Litigation

LL

Liskow & Lewis

New York State PFAS Update

United States Environment

MG

Manko, Gold, Katcher & Fox

Updates To PFAS Effluent Limitation Guidelines Under The Clean Water Act

United States Environment

KD

Kelley Drye & Warren LLP

PFAS News For The New Year

United States Environment

WS

Winston & Strawn LLP

From Waste To Asset: How Cactus Water Services, LLC v. COG Operating, LLC Reshapes Produced-Water Ownership And Future Oil And Gas Litigation

United States Energy

FL

Foley & Lardner

Recent Federal Developments For January 2026

United States Energy

BC

Bergeson & Campbell

Updates To PFAS Effluent Limitation Guidelines Under The Clean Water Act

According to the Unified Regulatory Agenda, the U.S. Environmental Protection Agency ("EPA" or "the Agency") plans to issue a notice of proposed rulemaking ("NPRM")...

United States Environment

KD

Kelley Drye & Warren LLP

PFAS News For The New Year

As 2026 gets underway, the PFAS regulatory landscape remains active at both the federal and state levels. Recent developments related to the scope of PFAS liability, PFAS reporting, and water quality regulation are poised to shape compliance strategies and risk allocation for the year ahead.

United States Environment

WS

Winston & Strawn LLP

From Waste To Asset: How Cactus Water Services, LLC v. COG Operating, LLC Reshapes Produced-Water Ownership And Future Oil And Gas Litigation

Cactus establishes a default rule that produced water belongs to the mineral lessee absent express lease language, but leaves unresolved critical questions that will drive future disputes over classification, conveyance, and allocation of value.

United States Energy

FL

Foley & Lardner

Recent Federal Developments For January 2026

B&C, Acta, And BCCM Publish 2026 Forecast For U.S. Federal And International Chemical Regulatory Policy

United States Energy

BC

Bergeson & Campbell

GOP AGs Support Letting States Chart The Course On Waterways

United States Environment

CO

Cozen O'Connor

California Environmental Law & Policy Update

The Trump administration has finalized a plan to roll back regulations implementing the National Environmental Policy Act (NEPA), a landmark environmental law that the White House...

United States Environment

AM

Allen Matkins Leck Gamble Mallory & Natsis

Mexico's New General Water Law And Reforms To The National Water Law

On Dec. 11, 2025, the head of the Federal Executive Branch, Claudia Sheinbaum, published in the Official Gazette of the Federation (DOF) the Decree enacting the General Water Law (LGA) and amending, adding to, and repealing various provisions of the National Water Law (LAN), derived from the initiative submitted on Oct. 9, 2025.

United States Energy

GT

Greenberg Traurig, LLP

NY DEC Announces Four New PFAS Initiatives

On Dec. 10, 2025, the New York Department of Environmental Conservation (DEC) announced the following new and updated policies, final guidance for publicly owned treatment works, and a rural background study, all related to the State's efforts on addressing Per- and Polyfluoroalkyl Substances (PFAS) and their effects.

United States Environment

GT

Greenberg Traurig, LLP

Navigating The Challenges Of Data Center Growth - Part II: Water, Siting, And E-Waste

This is the second post in Foley Hoag's series dedicated to the legal energy and environmental issues facing data center development and their potential sustainable solutions.

United States Environment

FH

Foley Hoag LLP

New Water Measurement Rules, Coming To A Division Near You…

United States Energy

DW

Dufford Waldeck

U.S. House Passes Bill To Expedite Interstate Natural Gas Pipeline Permitting

United States Energy

BI

Buchanan Ingersoll & Rooney PC

Turning Off The Tap: The Future Of PFAS Regulation Under Shifting Federal And State Laws (Podcast)

United States Environment

SP

Sive, Paget & Riesel

Too Many Rights, Not Enough Water: The Future Of Nevada's Humboldt River

United States Environment

FL

Fennemore

Agencies Host Public Listening Sessions On WOTUS Definition

United States Environment

N

Nossaman LLP

House Approves Sweeping Clean Water Act Reforms

United States Energy

BD

Beveridge & Diamond

New York And Minnesota Advance State-Level PFAS Regulation

United States Environment

JD

Jones Day

Whither WOTUS? What The Regulated Community Should Know About The Draft Revisions To The WOTUS Rule

United States Energy

CH

Clark Hill

New York Issues Suite Of PFAS Response Actions, Including A New Study, Final Guidance, And Draft Policies

United States Environment

BC

Bergeson & Campbell

California Representatives Propose Bills To "End The California Water Crisis" – Details On The Over $4 Billion Proposal

United States Environment

N

Nossaman LLP

EPA's Landmark WOTUS Proposal And The Mandate Of Sackett v. EPA

United States Energy

SH

Scarinci Hollenbeck LLC

Environmental Essentials Webinar Series – The Next Acts: Proposed Revisions To Regulations Under The Clean Water Act And The Endangered Species Act (Video)

United States Environment

B

Bracewell

EPA And Army Corps Release Proposed Rule Significantly Narrowing Federal "Waters Of The United States" (WOTUS) Jurisdiction After Sackett

United States Environment

AM

Allen Matkins Leck Gamble Mallory & Natsis

FERC Withdraws Controversial "Duty Of Candor" Proposal

United States Energy

BB

Baker Botts LLP

EPA Again Extends Deadline To Propose Enforceable National Drinking Water Standards For Perchlorate

United States Environment

SH

Shook, Hardy & Bacon

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Latest Videos

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Navigating New Tariffs Impacting The Renewable Energy Industry (Video)

SM

Sheppard, Mullin, Richter & Hampton LLP

DMCAR Trend #8 – PFAS Inspires Forever Litigation (Video)

DM

Duane Morris LLP

Brad De Vore Discusses PFAS Regulations With Water & Wastes Digest (Video)

WB

Womble Bond Dickinson

EPA's Charles River Two-Step (Video Content)

FH

Foley Hoag LLP

Top Game Changers Impacting The US Energy Sector (Video Content)

D

Dentons

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