The Ninth Circuit reversed in part summary judgment for the operators of a marine cargo terminal on Puget Sound in a CWA citizen suit concerning stormwater discharges. An environmental group argued the operators were liable for discharges from the facility's entire footprint, including an area known...
The Fourth Circuit affirmed dismissal of a TSCA citizen suit concerning EPA's decision on a petition to require testing for 54 per- and polyfluoroalkyl substances (PFAS). Four citizen groups argued that EPA's decision, which granted the petition and agreed to require testing on PFAS as a class throu...
A district court denied the state of Florida's motion for a limited stay of the court's prior ruling vacating EPA's approval of Florida's application to assume permitting authority under §404 of the CWA. Environmental groups initially sued, arguing EPA and FWS violated the ESA because neither the p...
The Fifth Circuit vacated two orders EPA issued under TSCA that prohibited a plastics company from manufacturing or processing long-chain perfluoroalkyls (PFAS) during its fluorination process. In March 2022, EPA charged that the company's fluorination process was subject to a recently promulgated s...
A district court granted in part environmental groups' motion for summary judgment in a challenge to various agency actions relating to EPA's approval of the state of Florida's application to assume permitting authority under §404 of the CWA. The groups argued EPA and FWS violated the ESA because n...
A district court vacated three pesticide registrations issued by EPA in 2020 for "over-the-top" application of dicamba products manufactured by agrochemical companies. Environmental groups argued EPA violated FIFRA by unconditionally issuing "new use" registrations for over-the-top use of dicamba on...
The Eleventh Circuit vacated a district court's conclusion that FIFRA expressly preempted a state failure-to-warn claim brought by a Georgia landowner against the manufacturer of the weedkiller Roundup. The landowner argued the weedkiller caused his cancer and sued the manufacturer for failing to wa...
The Tenth Circuit reversed a district court finding of a CWA violation in a citizen suit brought against the operator of a gold mine in Colorado. Plaintiffs argued the operator violated the CWA because seepage from the mine's settling ponds flowed into the groundwater and then migrated to the Middle...
The Ninth Circuit granted in part and denied in part environmental and public interest groups' petition to review EPA's amended pesticide registrations of streptomycin sulfate for use in combating citrus diseases. The groups argued EPA's determination that the registration would not cause "unreasona...
The Ninth Circuit affirmed summary judgment for an environmental group in a suit against a California resident who engaged in instream suction dredge mining in Idaho’s South Fork Clearwater River without an NPDES permit. The group argued the resident violated the CWA each time he operated a suctio...