The Pipeline and Hazardous Materials Safety Administration amended the Hazardous Materials Regulations to update, clarify, improve the safety of, or streamline various regulatory requirements.

NOAA proposed to designate marine portions of Papahānaumokuākea Marine National Monument in the Pacific Ocean waters surrounding the Northwest Hawaiian Islands as Papahānaumokuākea National Marine Sanctuary. 

The National Science Foundation seeks input to inform the development of an implementation plan to advance a key recommendation of the Ocean Climate Action Plan regarding marine carbon dioxide removal research.

EPA seeks comment on draft guidance to clarify and inform future NPDES permitting actions for communities with combined sewer systems. 

EPA announced the availability of and seeks comment on a document that describes its draft approach for implementation of the EPA label program for low embodied carbon construction materials.

The Army Corps of Engineers proposed to establish agency specific procedures for its implementation of principles, requirements, and guidelines for water resources investments in response to congressional direction provided in authorizing language in the Water Resources Development Act of 2020.

DOI announced the dates of tribal consultation meetings to gather information to revise procedures for conducting natural resource damage assessment and restoration for hazardous substance releases.

United States v. Lowell, Massachusetts, City of, No. 1:24-cv-10290 (D. Mass. Feb. 5, 2024). Under a proposed consent decree, a settling CWA defendant that allegedly engaged in unpermitted and illegal discharges from its wastewater collection system and small municipal separate storm sewer system must take measures necessary to achieve and maintain compliance and pay a $200,000 civil penalty for past noncompliance. 

United States v. Guam Waterworks Authority, No. 04-00004 (D. Guam Jan. 30, 2024). Under a proposed partial consent decree, a settling CWA defendant that discharged excess pollutants from and failed to maintain its wastewater system must implement an estimated $400 million in wastewater collection system improvements and conduct a feasibility study for improvements to the Hagåtña wastewater treatment plant. 

United States v. Holly Energy Partners-Operating, L.P., No. 5:24-cv-00107 (W.D. Okla. Jan. 29, 2024). Under a proposed consent decree, settling CWA defendants that allegedly discharged about 300,000 gallons of crude oil into Skull Creek near Cushing, Oklahoma, must pay $7.4 million in civil penalties and perform corrective measures to remedy the violations.