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89 FR 915

EPA Region 10 reissued the NPDES general permit for federal aquaculture facilities and aquaculture facilities located in Indian country in Washington.

Stone v. High Mountain Mining Co., LLC

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...

Lewis v. United States

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 ...

89 FR 703

EPA approved revisions to Louisiana's SDWA §1422 Underground Injection Control Program to include Class VI injection well primary enforcement responsibility. 

89 FR 481

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. 

88 FR 88913

EPA announced the release of and seeks comment on the Waste Reduction Model (WARM) version 16 and its supporting documentation. 

88 FR 88315

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. 

88 FR 86383

In re: Mallinckrodt PLC, No. 20-12522 (D. Del. Dec. 4, 2023). A proposed settlement agreement grants the United States an allowed unsecured claim against a settling CERCLA defendant on behalf of DOI in the amount of $56,880,784, and for EPA in the amount of $499,216, for past costs and future liability as a potential liable party at the Sangamo Electric Dump/Crab Orchard National Wildlife Refuge Site. 

88 FR 86381

United States v. Heritage-Crystal Clean, LLC, No. 1:22-cv-00303 (N.D. Ill. Dec. 7, 2023). Under a proposed consent decree, a settling RCRA defendant that allegedly violated various hazardous waste management requirements at five of its facilities must comply with extensive measures to assure its facilities do not manage used parts washing solvent that is subject to regulation as hazardous waste and pay civil penalties totaling $1,162,500.

88 FR 86383

United States v. TCI Pacific Communications LLC, No. 23-4218 (C.D. Ill. Dec. 5, 2023). Under a proposed consent decree, a settling CERCLA defendant must pay a total of $368,831.16 in EPA’s response costs and perform remedial work with respect to Operable Unit 4 of the DePue/New Jersey Zinc/Mobil Chemical Corp. Superfund Site in DePue, Illinois.