NMFS issued a rule under the Marine Mammal Protection Act prohibiting the take of humpback whales within 200 nautical miles of the islands of Hawaii. 

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. 

FWS proposed to list the coal darter as a threatened species under the ESA, with a rule issued under §4(d) of the Act to provide for the conservation of the species. 

FWS announced findings that the following 10 species are not warranted for listing as endangered or threatened under the ESA: Hupp’s Hill cave beetle, Hubbard’s cave beetle, overlooked cave beetle, Shenandoah cave beetle, Little Kennedy cave beetle, Holsinger’s cave beetle, Hubricht’s cave beetle, silken cave beetle, Pinaleño talussnail, and San Xavier talussnail. 

FWS proposed to list the West Virginia spring salamander as an endangered species and to designate critical habitat under the ESA.

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. 

NMFS announced a 90-day finding on a petition to list spring-run Chinook salmon on the Washington Coast as endangered or threatened under the ESA, and to designate critical habitat for the species. 

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.