SIP Approval: Missouri (revisions to the Operating Permits Program).

United States v. XIK, LLC, No. 017-cv-02368 (June 29, 2017). Settling CERCLA defendants responsible for industrial discharges of polycyclic aromatic hydrocarbons at the St. Louis River/Interlake/Duluth Tar Superfund site must pay $8,200,000 in civil penalties.

SIP Proposal: Utah (emissions limits for particulate matter, nitrogen oxide, and sulfur oxide for certain stationary sources in the Salt Lake City and Utah County nonattaiment areas).

SIP Approval: Illinois (update ozone NAAQS, add EPA-promulgated monitoring methods for multiple NAAQS, address EPA's revocation of the 1997 ozone NAAQS, and revise the timing requirements for the "flagging of exceptional events").

United States v. Essroc Cement Corp., No. 2:11-cv-01650 (W.D. Penn. July 19, 2017). In a third modification of a 2012 consent decree, a settling CAA defendant responsible for violating the Act at six of its cement facilities must install water injection technology to control emissions of nitrogen oxides on both kilns at its facility in Logansport, Indiana.

SIP Proposal: New York (regional haze five-year progress report).

SIP Proposal: Florida (infrastructure requirements for the 2010 nitrogen dioxide NAAQS).

EPA finalized revisions to Procedure 2, which includes quality assurance/quality control procedures for particulate matter continuous emission monitoring systems used for compliance determination at stationary sources.

SIP Approval: Alabama (transportation conformity rules).

EPA amended NESHAPs for the Portland cement manufacturing industry.