EPA announced the availability of proposed interim registration review decisions for bromine, chlorothalonil, and triadimefon, and proposed final registration review decisions for Agrobacterium rodiobacter and porcine zona pellucida.

EPA announced the availability of preliminary work plans for the following chemicals: Aureobasidium pullulans and cyflumetofen. 

EPA announced a 60-day public comment period associated with the release of the draft Integrated Risk Information System toxicological review of inorganic arsenic.

EPA finalized reporting and recordkeeping requirements for per- and polyfluoroalkyl substances under TSCA.

United States v. Hamilton County Water and Wastewater Treatment Authority, No. 23-cv-00225 (E.D. Tenn. Sept. 29, 2023). Under a proposed consent decree, a settling CWA defendant that allegedly discharged to waters of the United States without an NPDES permit and violated the operations and maintenance conditions of its NPDES permit must perform injunctive relief and pay a civil penalty of $598,490.

EPA announced its intent to approve revisions to Texas' Public Water System Supervision program.

United States v. Waco Oil & Gas Co., Inc., No. 23-cv-00078 (N.D.W. Va. Sept. 28, 2023). Under a proposed consent decree, a settling CWA defendant that discharged pollutants without a permit into waters of the United States must restore impacted areas, perform mitigation, and pay a civil penalty.

The Bureau of Ocean Energy Management amended its renewable energy regulations to update the definition of “Outer Continental Shelf” and add the definition of “State” in conformity with the Inflation Reduction Act.

United States v. Mount Vernon, No. 18-5845 (S.D.N.Y. Sept. 19, 2023). Under a proposed consent decree, a settling CWA defendant must take steps necessary to bring its municipal separate storm sewer system into compliance and pay a $100,000 civil penalty.

EPA revised and replaced the 2020 regulatory requirements for water quality certification under CWA §401.