EPA released a decision framework for use by the Office of Pollution Prevention and Toxics New Chemicals Division for identification of eye irritation or corrosion hazards for new chemical substances based on prioritization of reproducible, human-relevant data. 

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

EPA announced the establishment of the Vector Expedited Review Voucher program, which will incentivize the development of new insecticides to control and prevent the spread of vector-borne disease. 

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 announced the initiation of and seeks comment on the prioritization process for five chemical substances as candidates for designation as high-priority substances for risk evaluation under TSCA and related implementing regulations.

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. 

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.

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.