EPA proposed to enter into a settlement agreement under CERCLA concerning the recovery of costs for a cleanup action performed by the Agency at the Charlotte Bay Trading Company Site in Charlotte, North Carolina.

SIP Approval: California (revisions regarding volatile organic compound and particulate matter emissions in the San Joaquin Valley unified air pollution control district and negative declaration for the control techniques guidelines for the oil and natural gas industry in the Feather River air quality management district).

EPA proposed to authorize revisions to South Carolina’s hazardous waste management program under RCRA.

SIP Proposal: Missouri (removal of rule related to the control of emissions from solvent cleanup operations in the St. Louis area).

SIP Proposal: Kansas (infrastructure requirements for the 2015 ozone NAAQS).

SIP Proposal: Idaho (updates to incorporate by reference federal requirements and clarify source permitting requirements).

EPA amended the new source performance standards for the oil and natural gas sector as a result of the Agency’s reconsiderations on fugitive emissions requirements, well site pneumatic pump standards, requirements for certification of closed vent systems, and provisions to apply for the use of an alternative means of emission limitation.

EPA finalized the residual risk and technology review for NESHAPs for the major source iron and steel foundries source category and the technology review for the area source iron and steel foundries source category; the Agency also removed some exemptions for emissions standards and amended reporting requirements.

EPA amended the 2012 and 2016 oil and natural gas new source performance standards (NSPS); the amendments remove sources in the transmission and storage segment from the source category and rescind methane-specific requirements for sources in the production and processing segments. The Agency also adopted an interpretation of CAA §111 under which it must, as a predicate to promulgating NSPS for certain air pollutants, determine that the pertinent pollutant causes or contributes significantly to dangerous air pollution.