Clean Water Act, Air Pollution

Supreme Court’s Cert Denials Pave Way for Surge in Environmental Citizen Suits

McGlinchey Stafford on 7/18/2025

In a significant victory for environmental advocacy groups, the Supreme Court’s refusal on June 30, 2025 to grant certiorari in two pivotal cases (Port of Tacoma, et al. v. Puget Soundkeeper Alliance and ExxonMobil Corp., et...more

California Environmental Law & Policy Update 6.6.25

Allen Matkins on 6/9/2025

On May 29, 2025, the Supreme Court held that the National Environmental Policy Act (NEPA) — which requires federal agencies to analyze the environmental impacts of projects that they perform, fund, or approve — does not...more

Air/Wastewater Enforcement/Citizen Suit Action: Conservation Law Foundation and Quincy, Massachusetts Bio-based Chemical...

Mitchell, Williams, Selig, Gates & Woodyard,... on 5/6/2025

The Conservation Law Foundation (“CLF”) and Twin Rivers Technologies (“TRT”) entered into a March 30th Consent Decree (“CD”) addressing alleged violations of the Clean Air Act and the Clean Water Act. See No....more

Environmental Notes - April 2025

Williams Mullen on 4/9/2025

Under the Clean Air Act, sources frequently must undergo “New Source Review” (NSR) permitting, which is a pre-construction permitting program. NSR establishes requirements for new or modified sources prior to initiating...more

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

Pillsbury Winthrop Shaw Pittman LLP on 4/7/2025

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

U.S. Environmental Protection Agency Transition Team: Association of Clean Water Administrators/National Association of Clean Air...

Mitchell, Williams, Selig, Gates & Woodyard,... on 1/9/2025

Ten national organizations that represent state, tribal, and local partners transmitted a January 6th letter to the United States Environmental Protection Agency Transition Team offering assistance to the second Trump...more

Title V/Clean Air Act: Center for Biological Diversity Notice of Intent to Sue U.S. Environmental Protection Agency Addressing...

Mitchell, Williams, Selig, Gates & Woodyard,... on 8/14/2024

The Center for Biological Diversity (“CBD”) sent an August 7th document to the United States Environmental Protection Agency (“EPA”) styled: Notice of Intent to Sue Under the Clean Air Act for Failure to Issue or Deny a...more

Stormwater Enforcement: Arkansas Department of Energy and Environment - Division of Environmental Quality and Atkins Chicken...

Mitchell, Williams, Selig, Gates & Woodyard,... on 7/30/2024

The Arkansas Department of Energy and Environment – Division of Environmental Quality (“DEQ”) and Twin Rivers Foods, Inc. (“Twin Rivers”) entered into a July 18th Consent Administrative Order (“CAO”) addressing an alleged...more

California Environmental Law & Policy Update 7.26.24

Allen Matkins on 7/29/2024

An environmental advocacy organization on July 23 filed a lawsuit against the City of Los Angeles over the Port of L.A.'s stormwater treatment system. At issue is a 53-acre portion of the port on Terminal Island where...more

EPA and DOI Regulatory Roundup: Air Toxics and Carbon, Coal Ash, Wastewater, Methane, and Offshore Wind

WilmerHale on 6/12/2024

The Biden-Harris Administration recently issued a suite of new rules aimed at addressing water and air quality, reducing methane emissions, protecting environmental justice communities, and accelerating the nation’s...more

Carolinas Environmental Legislative Update

Williams Mullen on 6/4/2024

Both the North and South Carolina legislatures have recently adopted statutes affecting environmental issues in their respective states. This update highlights the most significant developments in North and South Carolina....more

Storm Water Enforcement: Arkansas Department of Energy & Environment - Division of Environmental Quality and Dewitt Cryptocurrency...

Mitchell, Williams, Selig, Gates & Woodyard,... on 4/12/2024

The Arkansas Department of Energy & Environment – Division of Environmental Quality (“DEQ”) and Jones Digital, LLC (“Jones”) entered into an April 5th Consent Administrative Order (“CAO”) for addressing alleged operating...more

PSD/Clean Air Act: Federal Appellate Court Certifies Texas Commission on Environmental Quality/BACT Question

Mitchell, Williams, Selig, Gates & Woodyard,... on 2/21/2024

The United States Court of Appeals, Fifth Circuit (“Fifth Circuit”) in a February 16th Order considered the Port Arthur Community Action Network (“PACAN”) Petition for a review of a decision by the Texas Commission on...more

Air Enforcement: U.S. Department of Justice and Beverly, Ohio, Ferroalloy Production Facility Enter Into Consent Decree

Mitchell, Williams, Selig, Gates & Woodyard,... on 8/9/2023

The United States Department of Justice (“DOJ”) and Globe Metallurgical, Inc. (“GMI”) entered into a Consent Decree (“CD”) in the United States District Court (Southern District of Ohio) addressing alleged Clean Air Act...more

California Environmental Law & Policy Update 7.28.23

Allen Matkins on 7/31/2023

Twenty-two attorneys general, led by California Attorney General Rob Bonta, urged a federal court this Wednesday to reject a proposed $10.3 billion settlement over contamination of U.S. public drinking water systems with...more

New Case Law Update: Mountain Valleys, Chevron Deference and a Long-Awaited Resolution on the Sacketts’ Small Lot

Pillsbury - Gravel2Gavel Construction & Real... on 6/1/2023

This is a brief roundup of recent federal court environmental and regulatory law decisions from the federal courts over the past few months, including the much anticipated ruling in Sackett, et ux., v, Environmental...more

Democratic AGs Urge EPA and NOAA to Increase Efforts to Fight Plastic Microfiber Pollution

Cozen O'Connor on 5/12/2023

A group of 16 Democratic sent a letter to the EPA and the National Oceanic and Atmospheric Administration (NOAA) urging them to develop a more robust national response to the problem of microfibers in the environment....more

California Environmental Law & Policy Update - 3.03.23 - #1

Allen Matkins on 3/6/2023

Idaho has joined a Texas lawsuit over a new interpretation of the Clean Water Act’s “waters of the United States” (WOTUS) rule, alleging that it is too vague, oversteps the bounds of federal authority, and puts the liberties...more

California Environmental Law & Policy Update - 2.24.23

Allen Matkins on 2/27/2023

A Ninth Circuit panel on Tuesday revived a Trump-era Clean Water Act regulation, finding that U.S. District Judge William Alsup erred when vacating a Trump administration revision of the “Clean Water Act 401 Certification...more

Fugitive Emissions/Clean Air Act: U.S. Environmental Protection Agency Proposed Rule Addressing New Source Review Regulations

Mitchell, Williams, Selig, Gates & Woodyard,... on 10/19/2022

The United States Environmental Protection Agency (“EPA”) is proposing revisions to the Clean Air Act’s New Source Review (“NSR”) permitting regulations. The proposed rule would require that owners and operators of...more

California Environmental Law & Policy Update - September 2022 #2

Allen Matkins on 9/13/2022

California becomes first state to test drinking water for microplastics - San Francisco Chronicle – September 7 - On Wednesday, California became the first state to begin requiring water agencies to test for microplastics,...more

NPDES Permitting/Clean Water Act: U.S. Environmental Protection Agency Motion to Dismiss Arkansas Department of Energy &...

Mitchell, Williams, Selig, Gates & Woodyard,... on 5/25/2022

As noted in an April 27th blog post, the Arkansas Department of Energy & Environment – Division of Environmental Quality (“DEQ”) filed a Complaint for Declaratory and Injunctive Relief (“Complaint”) in the United States...more

Clean Water Act › Air Pollution