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Clean Water Act › Corporate Counsel

The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to... more +
The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to accomplish its stated goals by preventing point and nonpoint pollution sources, assisting wastewater treatment facilities and maintaining wetlands. less -
Womble Bond Dickinson

United States Supreme Court Administrative Law Decisions of Note During the 2024-2025 Term

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In this update, we cover the most impactful Supreme Court cases related to administrative law issues decided during the 2024-2025 term. The Supreme Court decided important administrative law cases falling into these general...more

Holland & Hart LLP

Supreme Court Declines to Limit Environmental Citizen Suits

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On June 30, 2025, the Supreme Court denied industry group petitions to review and reverse two cases—one out of the Fifth Circuit and the other out of the Ninth Circuit—that could have significantly restricted the ability of...more

Pillsbury Winthrop Shaw Pittman LLP

EPA Announces Sweeping Deregulatory Agenda: The Complete Set of EPA’s 31 Actions and Affected Environmental Regulations

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In what it called “the greatest and most consequential day of deregulation in U.S. history,” the Environmental Protection Agency (EPA) announced its most expansive deregulatory initiative to date on March 12, 2025. Through a...more

Paul Hastings LLP

PFAS Legislative & Regulatory Developments – First Quarter 2025

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As President Joseph Biden wound down his time in office, the U.S. Environmental Protection Agency (EPA) undertook significant efforts to finalize the regulation of per- and polyfluoroalkyl substances (PFAS). While it remains...more

McGlinchey Stafford

Trump EPA: Interplay of Deregulation and NGO Citizen Suits

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President Donald Trump’s second term has already proven to be an extension of his first-term deregulatory agenda at the U.S. Environmental Protection Agency (EPA). Given historical trends, such deregulation will likely prompt...more

Beveridge & Diamond PC

Environmental Enforcement Update: What to Expect In the Second Trump Administration

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We anticipate President Trump’s upcoming term will usher in significant shifts in U.S. environmental enforcement priorities and practices. Beveridge & Diamond has helped clients navigate every change in administration since...more

Venable LLP

Sackett v. EPA: What's Next for Clean Water Act Jurisdiction?

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Clean Water Act practitioners have spent the past 50 years learning how to identify a wetland or water body that qualifies for federal jurisdiction—and the past 17 parsing the phrase "significant nexus." The upshot was that...more

Lippes Mathias LLP

WOTUS Rule Finalized: What Does it Mean?

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Following decades of regulatory actions and lawsuits concerning the definition of “waters of the United States under the Clean Water Act, on December 30, 2022, the U.S. Environmental Protection Agency (EPA) and the U.S. Army...more

Williams Mullen

4th Circuit Narrows Protections from CWA Citizen Suits

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By majority decision in Naturaland Trust v. Dakota Finance, LLC, the United States Court of Appeals for the Fourth Circuit struck a blow against one of the affirmative defenses a company may use to defend against citizen...more

MG+M The Law Firm

A Year of Changes Under EPA's PFAS Strategic Roadmap

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On November 17, 2022, the US Environmental Protection Agency (EPA) released “A Year of Progress Under EPA’s PFAS Strategic Roadmap,” which summarizes its actions since the PFAS Strategic Roadmap was released in October 2021....more

Snell & Wilmer

Supreme Court Reinstates Trump Clean Water Rule (For Now)

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On Wednesday, April 6, the U.S. Supreme Court in a 5-4 decision stayed a Northern District of California Court decision that both remanded and vacated EPA Trump-era rules regarding water quality certification of projects...more

Troutman Pepper Locke

SCOTUS Stays District Court Remand of ‎Trump EPA State Water ‎Quality Certification ‎Rules, Raises ‎Stakes for Upcoming EPA...

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On April 6, 2022, the Supreme Court stayed an October 21, 2021 Northern District of California Court ruling that vacated and remanded EPA’s 2020 revisions to the processes for states to certify water quality impacts from...more

Brownstein Hyatt Farber Schreck

EPA to Modify the Navigable Waters Protection Rule

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Proposed regulatory changes will increase the extent of lands throughout the country that will be designated, and regulated, as wetlands. On June 9, 2021, the Department of the Army and the Environmental Protection Agency...more

K&L Gates LLP

Muddied Groundwater: New Supreme Court Test Adds Confusion and Uncertainty to Clean Water Act Permitting Jurisdiction

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On April 23, 2020, the U.S. Supreme Court announced its much-awaited decision in County of Maui v. Hawai’i Wildlife Fund on whether the Clean Water Act (CWA) regulates the discharge of pollutants that pass through groundwater...more

Jackson Walker

U.S. Supreme Court Finds That Clean Water Act’s Permitting Requirements Can Extend to Discharges Through Groundwater

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On April 23, 2020, the U.S. Supreme Court issued a 6-3 opinion in County of Maui v. Hawaii Wildlife Fund, which established a new test to determine the permitting requirements under the Clean Water Act (CWA). The case...more

Pillsbury Winthrop Shaw Pittman LLP

Extreme Weather Fuels Increasing Trend of New Climate Change Litigation

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As federal efforts to roll back environmental regulations from the Obama era continue, environmental groups have been increasingly filing lawsuits against industry alleging damages related to climate change impacts, using the...more

Pillsbury - Gravel2Gavel Construction & Real...

SCOTUS Update: Environmental and Administrative Law Cases Decided in 2017

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The 2016 Term of the U.S. Supreme Court was fairly quiet, perhaps reflecting the fact that with only eight members, the Court needed a working consensus to handle its docket. The Court handed down seventy rulings, but only a...more

Eversheds Sutherland (US) LLP

Buckle-Up, Uncertainty Paves a Bumpy Road Ahead: Environmental Regulation Under the Trump Administration

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Sutherland attorneys are closely watching the developments concerning changes to environmental regulation under President Trump. This article begins a series of communications with our clients on developments of particular...more

Beveridge & Diamond PC

Impacts of the 2016 U.S. Election on Environmental Law, Policy, and Enforcement

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The 2016 election results will have wide-ranging impacts on the future direction of environmental law, policy, and enforcement in the U.S. With 100 lawyers in offices around the U.S. focused on environmental and natural...more

WilmerHale

Energy Sector Alert Series: Supreme Court Cases to Watch

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In this eight-week alert series, we are providing a broad look at current and emerging issues facing the energy sector. Lawyers from across the firm are discussing issues ranging from cybersecurity, antitrust and intellectual...more

Bergeson & Campbell, P.C.

Wrap-Up of Federal and State Chemical Regulatory Developments, July 2016

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TSCA/FIFRA/IRIS/NTP/TRI - EPA Launches Advisory Panels: On June 15, 2016, the U.S. Environmental Protection Agency (EPA) launched two advisory panels designed to facilitate small businesses to provide feedback to EPA...more

Snell & Wilmer

In a Victory for Businesses and Developers, the United States Supreme Court Holds that Clean Water Act Jurisdictional...

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The United States Supreme Court ruled today that an approved jurisdictional determination under the Clean Water Act constitutes an immediately appealable agency action under the Administrative Procedure Act, 5 U.S.C. §§ 500...more

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