EPA promulgated a federal implementation plan under the CAA and EPA’s implementing regulations that consists of emissions control requirements for existing, new, and modified oil and natural gas sources on Indian country lands within the Uintah and Ouray Indian Reservation to address air quality in and around the Uinta Basin ozone nonattainment area in northeast Utah.

EPA took direct final action on the authorization of Delaware’s changes to its hazardous waste management program under RCRA.

EPA proposed to authorize changes to Delaware’s hazardous waste management program under RCRA.

EPA proposed to determine that the Libby, Montana, fine particulate matter nonattainment area is attaining the 1997 annual fine particulate matter NAAQS based on 2014-2021 data, to approve Montana’s plan for maintaining the 1997 annual fine particulate matter NAAQS, and to redesignate the Libby Area to attainment for the 1997 annual fine particulate matter NAAQS.

SIP Proposal: Missouri (marginal nonattainment area requirements for the 2015 eight-hour ozone NAAQS for the Missouri portion of the St. Louis, MO-IL nonattainment area).

United States v. Container Life Cycle Management, LLC, No. 22-cv-01423 (E.D. Wis. Nov. 30, 2022).  A settling RCRA and CAA defendant, in connection with violations at its container reconditioning facilities in Milwaukee, Wisconsin, must pay a $1.6 million civil penalty; implement a container management plan for a two-year period; continuously operate a previously installed regenerative thermal oxidizer at and construct additional emissions capture systems within the St. Francis facility; install and continuously operate a new digital data recorder to record the temperature of the drum reclamation furnace afterburner and maintain an afterburner temperature at or above 1,650 degrees at the Oak Creek facility; and conduct performance testing at both facilities.

EPA issued a supplemental proposal to update, strengthen, and expand the standards proposed on November 15, 2021, which were intended to significantly reduce emissions of greenhouse gases and other harmful air pollutants from the crude oil and natural gas source category; the Agency proposed standards for certain sources that were not addressed in the original proposal and revisions that strengthen standards for sources of leaks, provide greater flexibility to use innovative advanced detection methods, and establish a super emitter response program.

SIP Approval: California (revisions governing the issuance of permits for stationary sources in the Eastern Kern Air Pollution Control District).

SIP Proposal: California (revisions governing the issuance of permits for stationary sources in the Eastern Kern Air Pollution Control District).

SIP Proposal: Arizona (partial approval and partial disapproval of revisions to infrastructure requirements for the 2015 ozone NAAQS).