SIP Approval: California (revisions concerning ozone nonattainment requirements for controlling volatile organic compounds and nitrogen oxides from refinery flares).

EPA tentatively approved revisions to Delaware’s Public Water System Supervision Program concerning drinking water regulations for the Stage 1 Disinfectants and Disinfection Byproduct Rule. 

SIP Proposal: California (issuance of permits for stationary sources and the preconstruction review and permitting of major sources and major modifications in the Tehama County Air Pollution Control District). 

SIP Proposal: California (revisions concerning nonattainment fees in the San Diego County Air Pollution Control District). 

SIP Approval: District of Columbia (removal of requirements for gasoline vapor recovery systems installed on gasoline dispensers). 

SIP Approval: Virginia (second maintenance plan for the 1997 eight-hour ozone NAAQS in the Fredericksburg area). 

EPA announced the availability of and seeks comment on an update to the interim guidance on the destruction and disposal of per- and polyfluoroalkyl substances (PFAS) and materials containing PFAS; the updated guidance builds on information pertaining to technologies that may be feasible and appropriate for the destruction or disposal of PFAS and PFAS-containing materials, and identifies key data gaps and uncertainties that must be resolved before EPA can issue more definitive recommendations about PFAS destruction and disposal technologies.

EPA entered into a proposed settlement agreement in United States Steel Corp. v. EPA, Nos. 13-3595, 16-2668, and 18-1249 (8th Cir.), that would establish deadlines for EPA to take certain, specified actions regarding final rules promulgated by the Agency under the CAA related to regional haze best available retrofit technology determinations for taconite facilities owned and operated by U. S. Steel in Minnesota. 

EPA denied a petition from the Center for Biological Diversity requesting that discarded polyvinyl chloride be listed as a hazardous waste under RCRA. 

United States v. Sunoco Pipeline, L.P., No. 1:24-cv-00238-SJD (S.D. Ohio Apr. 29, 2024). Under a proposed consent decree, a settling CWA defendant must pay a civil penalty of $550,000 in addition to $1,250,000 to compensate for harm to natural resources in connection with crude oil escaping from a ruptured pipeline, contaminating waters of the United States, and causing damage to natural resources.