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 Fifth Circuit vacated a district court ruling in a decades-long dispute over whether a property in Louisiana contains federally regulated wetlands. The property owner sued the Army Corps of Engineers, arguing its determination that the property contained federal regulated wetlands was arbitrary ...
EPA approved revisions to Louisiana's SDWA §1422 Underground Injection Control Program to include Class VI injection well primary enforcement responsibility.
United States v. New Hampshire, No. 1:18-cv-00996-PB. Under a proposed modified consent decree, a settling CWA defendant that allegedly violated an NPDES permit by exceeding its discharge limits for total phosphorus and pH, which contributed to contamination, eutrophication, and the growth of toxic cyanobacteria in the Merrymeeting River must achieve compliance with the CWA and its permit by the end of 2025.
EPA proposed to promulgate an aquatic life designated use that includes propagation and protective water quality criteria for dissolved oxygen for Zone 3, Zone 4, and upper Zone 5 of the Delaware River.
EPA approved Texas’ revisions to its Public Water System Supervision program that adopted the Agency’s drinking water rules for the Revised Total Coliform Rule and Ground Water Rule.
EPA proposed to establish new and revised human health water quality criteria for certain pollutants in the state of Florida.
United States v. Chattanooga, City of, No. 1:12-cv-00245 (E.D. Tenn. Dec. 3, 2023). A proposed modification to an existing consent decree concerning a settling CWA defendant’s alleged violations with respect to the city's POTWs extends certain deadlines to achieve compliance with the consent decree while adding significant remedial projects that must be completed within five years.
EPA proposed revisions to the National Primary Drinking Water Regulation for lead and copper under the SDWA, including requiring water systems to replace lead service lines, remove the lead trigger level, reduce the lead action level to 0.010 mg/L, and strengthen tap sampling procedures.
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...