Environmental Protection Agency October 28, 2016 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is approving two revisions to the Louisiana State Implementation Plan (SIP) that revise the Louisiana Prevention of Significant Deterioration (PSD) permitting program to establish the significant monitoring concentration (SMC) for fine particles (PM2.5) at a zero microgram per cubic meter (0 [mu]g/m\3\) threshold level consistent with federal permitting requirements. The EPA is approving this action under section 110 and part C of the Clean Air Act (CAA or Act).

The Environmental Protection Agency (EPA) is disapproving the severable portions of the February 6, 2012, Oklahoma State Implementation Plan (SIP) submittal which establish certain de minimis thresholds for particulate matter less than 2.5 micrometers in diameter (PM2.5) in the Prevention of Significant Deterioration (PSD) permitting requirements. Specifically, we are disapproving provisions that adopt and implement the PM2.5 significant impact levels (SILs) and significant monitoring concentration (SMC); both of which were vacated by a federal court and subsequently removed from federal PSD regulations. We are disapproving the submitted provisions as inconsistent with federal laws and regulations for the permitting of PM2.5. The EPA is finalizing this disapproval under section 110 and part C of the Clean Air Act (CAA).

The U.S. Environmental Protection Agency (EPA) proposes to approve the Commonwealth of Kentucky Underground Injection Control (UIC) Class II Program for primacy. The EPA determined that the state's program is consistent with the provisions of the Safe Drinking Water Act (SDWA) at section 1425 to prevent underground injection activities that endanger underground sources of drinking water. The agency's approval allows the state to implement and enforce state regulations for UIC Class II injection wells only located within the state. The Commonwealth's authority excludes the regulation of injection well Classes I, III, IV, V and VI and all wells on Indian lands, as required by rule under the SDWA. The agency requests public comment on this proposed rule and supporting documentation. In the ``Rules and Regulations'' section of this Federal Register, the agency published EPA's approval of the state's program as a direct final rule without a prior proposed rule. If the agency receives no adverse comment, EPA will not take further action on this proposed rule.