In West Virginia Rivers Coalition, Inc., et al. v. The Chemours Company FC, LLC, the Court of Appeals for the Fourth Circuit vacated a district court decision to preliminarily enjoin The Chemours Company (“Chemours”) from discharging hexafluoropropylene oxide dimer acid (“HFPO-DA”)—a Chemours-created PFAS chemical— from its Washington Works facility in excess of its permitted limit.  In doing so, the Fourth Circuit took no issue with the district court’s standing analysis, but determined the district court made legal and factual errors in its irreparable harm determination. Read More »

Share | Email| Comments|  Topics: Citizens Suit, Clean Water Act, Contamination, Drinking Water, Fourth Circuit, Injunction, Permits, PFAS, Pollutants, Standing, Water

In an Order issued on May 18, 2026, the United States Court of Appeals for the Fourth Circuit denied a motion for a stay pending appeal filed by a coalition of environmental groups, who sought to halt the construction of a pipeline project in Virginia and North Carolina. Read More »

Share | Email| Comments|  Topics: Administrative Appeals, Agency Action, Army Corps, Citizen Suit, Clean Water Act, Energy, Fourth Circuit, Natural Gas, Natural Gas Act, North Carolina, Oil and Gas, Permits, Pipelines, West Virginia, Wetlands

The Ninth Circuit’s November 5^th decision in Coastal Environmental Rights Foundation, v. Naples Restaurant Group, LLC exploded onto the scene -- deepening an existing circuit split on whether a Clean Water Act citizen suit stays alive based solely only civil penalties once the alleged wrongful conduct ceases.  Consistent with the Eighth Circuit, the Ninth Circuit answered this question in the negative in Naples Restaurant.  The Second, Third, Fourth, Seventh and Eleventh Circuits have previously answered the question in the affirmative.  Overall, the key takeaway is for parties to make sure they are cognizant of the prevailing rule in their Circuit, and to be prepared to raise or respond to the arguments implicated by the Naples Restaurant opinion. Read More »

Share | Email| Comments|  Topics: Citizen Suit, Citizens Suit, Civil Penalties, Clean Water Act, Enforcement, Ninth Circuit, NPDES, Permits, Pollutants, Water

On June 30, 2025, the Supreme Court denied the Port of Tacoma (the “Port”) and SSA Terminals LLC's (“SSA”) petition for writ of certiorari to review the 9^th Circuit’s decision in Port of Tacoma v. Puget Soundkeeper Alliance addressing whether the Clean Water Act (“CWA”) authorizes citizens to enforce conditions of state-issued pollutant discharge permits adopted under state law that impose a greater scope of coverage than required by the CWA.  The 9th Circuit answered this question in the affirmative, holding that Washington's Industrial Stormwater General Permits (“ISGP”), a CWA National Pollutant Discharge Elimination System (“NPDES”) permit, required the Port and SSA to have the necessary stormwater controls across the entire West Sitcum Terminal (the “Terminal”).  The Supreme Court's recent decision to deny certiorari leaves litigants open to a patchwork of Circuit determinations on the scope of the CWA’s citizen suit provision.  Read More »

Share | Email| Comments|  Topics: Citizen Suit, Citizens Suit, Clean Water Act, Ninth Circuit, NPDES, Permits, Private Right of Action, Stormwater, Supreme Court, United States Supreme Court, Water

On April 3^rd, the U.S. District Court of Colorado vacated the U.S. Army Corps of Engineers’ (“USACE”) Record of Decision, Final Environmental Impact Statement, and approval of a dredge-and-fill permit for Denver Water’s expansion project of the Gross Dam and Reservoir in Colorado and remanded the matter back to the agency.  The Court temporarily enjoined Denver Water from continuing construction on the dam pending a hearing on what is “reasonable and necessary” to ensure that the dam will be structurally safe and issued a permanent injunction prohibiting the enlargement of the Gross Reservoir. Read More »

Share | Email| Comments|  Topics: Administrative Procedures Act, Agency Action, Army Corps, Clean Water Act, Climate Change, Colorado, Injunction, NEPA, Permits, Water

This entry was authored by MGKF Summer Associate Autumn Chassie

On May 28, 2024, the Supreme Court agreed to decide City and County of San Francisco v. Environmental Protection Agency. This case arose after the Environmental Protection Agency (“EPA”) required San Francisco to update its long-term control plan for combined sewer overflows and to re-evaluate alternatives for discharges during heavy rains when the system’s capacity is exceeded. 75 F.4th 1074 (9th Cir. 2023). The primary issue is whether the Clean Water Act (“CWA”) allows EPA to impose general prohibitions in National Pollutant Discharge Elimination System (“NPDES”) permits, which could subject permit holders to enforcement actions for violating water quality standards without specifying exact discharge limits. Read More »

Share | Email| Comments|  Topics: Clean Water Act, Enforcement, NPDES, United States Supreme Court

In State of Louisiana et al. v. U.S. Envt’l Prot. Agency et al., 2:23-CV-01714, 2024 WL 994651 (W.D. La. Mar. 7, 2024), a federal judge rejected certain states’ and industry groups’ motion for preliminary relief to enjoin the EPA’s revised Clean Water Act (“CWA”) rule (“2023 Rule”). The 2023 Rule reinstated EPA’s long-held interpretation of Section 401 of the CWA that afforded states and tribes broad authority to veto or impose conditions on federally permitted activities due to water quality concerns. The court’s decision is a blow to efforts instituted by EPA under the Trump administration to interpret the authority of states and tribes more narrowly under Section 401. Read More »

Share | Email| Comments|  Topics: Administrative Procedures Act, Clean Water Act, Retroactive, Water Pollution Control Act

On January 3, 2024, the United States Court of Appeals for the Tenth Circuit reversed a district court decision that held that a Colorado gold mining company’s operation of four settling ponds constituted an unpermitted discharge of pollutants into navigable waters under the Clean Water Act (“CWA”).  In Stone v. High Mountain Mining Company, No. 22-1340 (10th Cir. 2024), the Tenth Circuit held that the district court did not correctly follow the Supreme Court’s decision in County of Maui v. Hawaii, 140 S. Ct. 1462 (2020) regarding the CWA’s applicability to indirect discharges to navigable waters. Read More »

Share | Email| Comments|  Topics: Citizen Suit, Clean Water Act, NPDES, Tenth Circuit

In Kanawha Forest Coalition, et al. v. Keystone WV, 2:22-cv-00367, 2023 WL 6466210 (S.D. W.V. Oct. 4, 2023), the Honorable Joseph R. Goodwin of the United States District Court for the Southern District of West Virginia, Charleston Division granted summary judgment against the operator of three defunct surface mines for past violations of the Clean Water Act (“CWA”) and Surface Mining Control and Reclamation Act (“SMCRA”) but granted summary judgment in favor of the operator with regard to claims of ongoing permit violations, finding that the Plaintiffs’ theories constituted a collateral attack on validly-issued permits.  Read More »

Share | Email| Comments|  Topics: Citizens Suit, Clean Water Act, Mining, NPDES, Permits, Successor Liability, West Virginia

In Sackett v. EPA, 2023 WL 3632751 (U.S. May 23, 2023), the Supreme Court limited the authority of the United States Environmental Protection Agency (“EPA”) to regulate wetlands by embracing a “continuous surface connection test” to determine if adjacent wetlands are subject to the Clean Water Act (“CWA”) and explicitly rejecting Justice Kennedy’s “significant nexus” test from Rapanos v. United States, 547 U.S. 715, 754 (2006). While the 9-0 decision was unanimous in judgment by holding that the Sacketts’ wetland was not subject to federal jurisdiction, the court was sharply divided as to the test to determine when an adjacent wetland qualifies as a Water of the United States (or “WOTUS”).  A five-justice majority held that the CWA’s jurisdiction includes only adjacent wetlands that are indistinguishable from WOTUS due to a continuous surface connection. Under this framework, for an adjacent wetland to be subject to CWA jurisdiction, the adjacent body of water must constitute a WOTUS, and the adjacent wetland must have a continuous surface connection with the WOTUS such that it is difficult to determine where the body of water ends and the wetland begins.  The majority’s holding casts serious doubt on the continuing viability on the final WOTUS rule that became effective earlier this year and relied in part on the “significant nexus” test that EPA and the United States Army Corps have applied through guidance since the Rapanos decision. See 88 Fed. Reg. 3004 (Jan. 18, 2023). Read More »

Share | Email| Comments|  Topics: Clean Water Act, Decisions of Note, EPA, Major Questions Doctrine, Navigability, Ninth Circuit, Rapanos, Supreme Court, United States Supreme Court, Wetlands