A district court granted EPA's motion to dismiss nonprofit groups' challenge to the Agency's response to their TSCA petition requesting comprehensive health and environmental effects testing on 54 per- and polyfluoroalkyl substances (PFAS) manufactured by a company in North Carolina. EPA granted the...

A district court denied for lack of jurisdiction the Commonwealth of Kentucky's and business groups' motions to preliminarily enjoin EPA's and the Army Corps of Engineers' 2023 rule revising the definition of "waters of the United States" under the CWA. The court found that plaintiffs failed to show...

The Fourth Circuit vacated the West Virginia Department of Environmental Protection's CWA §401 certification for a proposed pipeline that would transport natural gas from West Virginia to southern Virginia. Landowners and environmental groups petitioned for review of the certification, arguing the ...

The Fourth Circuit denied a petition to review the Virginia Department of Environmental Quality's (DEQ's) and the State Water Control Board's approval of a state water permit for a proposed pipeline that would transport natural gas from West Virginia to southern Virginia. Environmental groups argued...

The Ninth Circuit reversed a district court's order granting voluntary remand and vacating EPA's 2020 CWA Section 401 Certification Rule. States, environmental groups, and tribes challenged the rule, arguing it unlawfully restricted states' and tribes' ability to reject water pollution projects. Bef...

A district court adopted a magistrate judge's recommendation to deny summary judgment for an environmental group in a lawsuit concerning the Army Corps of Engineers' issuance of a CWA §404 permit for a roadway expansion project in Florida. The group argued the Corps violated the CWA by failing to r...

A district court denied the state of Illinois' motion to remand to state court a lawsuit concerning three companies' manufacturing and subsequent disposal of polychlorinated biphenyls (PCBs). Illinois filed suit in state court, arguing the companies manufactured, marketed, and sold PCBs that led to ...

The Ninth Circuit granted in part and denied in part petitions to review EPA's 2019 amended registration of the pesticide sulfoxaflor. Environmental groups alleged that the registration, which unconditionally approved new uses of sulfoxaflor requested by the company that created the pesticide, viola...

The Fifth Circuit denied a petition to review a CWA permit issued by the Army Corps of Engineers authorizing development of a natural gas pipeline and export facility in south Texas. A group of shrimpers and fishermen argued the permit violated the CWA by failing to show that the approved project wa...