SIP Proposal: Mississippi (infrastructure submissions).

SIP Proposal: Maryland (exemptions to preconstruction permitting requirements).

SIP Proposal: Florida (infrastructure submissions).

SIP Approval: Maryland (attainment of revoked one-hour ozone NAAQS for the Baltimore nonattainment area).

SIP Approval: Maryland (exemptions to preconstruction permitting requirements).

SIP Approval: Illinois (attainment of the 1997 eight-hour ozone NAAQS for the St. Louis, MO-IL nonattainment area and related actions).

EPA took final action on revisions to the federal implementation plans of several states to reduce interstate transport of fine particulate matter and ozone.

United States v. Wendt, No. CV-12-2225 (LB) (N.D. Cal. May 30, 2012). Settling CWA defendants that discharged pollutants into waters of the United States without a permit must pay a civil penalty, must restore the impacted areas, and must perform mitigation.

United States v. SABIC Innovative Plastics US LLC, No. 12-cv-00076 (S.D. Ill. May 31, 2012). Settling CAA defendants responsible for violations at chemical manufacturing plants in Mt. Vernon, Indiana, and Burkville, Alabama, must pay a $1,012,873 civil penalty, must implement an enhanced leak detection and repair program to mitigate any excess emissions, must perform additional injunctive relief, and must implement a supplemental environmental project.

United States v. INEOS USA LLC, No. 3:12-cv-01404 (N.D. Ohio June 4, 2012). A settling CAA, CERCLA, and EPCRA defendant responsible for violations at its chemical manufacturing plant in Lima, Ohio, must pay a $1,150,000 civil penalty; must implement an enhanced leak detection and repair program; must improve training, reporting and recordkeeping; must undertake an analysis of the releases; must review and update training; and must perform a CERCLA/EPCRA audit.