Approval and Promulgation of Implementation Plans; State of Iowa; Infrastructure SIP Requirements for the 1997 and 2006 Fine Particulate Matter (PM2.5
The Environmental Protection Agency (EPA) is proposing to approve elements of two State Implementation Plan (SIP) submissions from the State of Iowa for the Infrastructure SIP Requirements for the 1997 and 2006 Fine Particulate Matter (PM2.5) National Ambient Air Quality Standards (NAAQS). Infrastructure SIPs address the applicable requirements of Clean Air Act (CAA) section 110, which requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each new or revised NAAQS promulgated by the EPA. These SIPs are commonly referred to as ``infrastructure'' SIPs. The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA. This action also proposes to approve the adoption of the 1997 PM2.5 standard. On September 8, 2011, EPA issued a Finding of Failure to Submit a Complete State Implementation Plan for several states, including Iowa. With respect to Iowa, the Finding of Failure to Submit covered the following 2006 PM2.5 NAAQS infrastructure requirements: 110(a)(2)(A)-(C), (D)(i)(II) (prong 3 only), (E)-(H) and (J)-(M). This proposal to approve Iowa's infrastructure SIP for the 2006 PM2.5 NAAQS addresses the September 8, 2011 finding.
Air Plan Approval; Ohio; Infrastructure SIP Requirements for the 2012 PM2.5
The Environmental Protection Agency (EPA) is proposing to approve elements of the state implementation plan (SIP) submission from Ohio regarding the infrastructure requirements of section 110 of the Clean Air Act (CAA) for the 2012 fine particulate matter (PM2.5) National Ambient Air Quality Standards (NAAQS). The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA.
Air Plan Approval and Air Quality Designation; TN; Redesignation of the Shelby County 2008 8-Hour Ozone Nonattainment Area to Attainment
On January 19, 2016, the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), Air Pollution Control Division, submitted a request for the Environmental Protection Agency (EPA) to redesignate the portion of Tennessee that is within the Memphis, Tennessee-Mississippi-Arkansas (Memphis, TN-MS-AR) 2008 8-hour ozone nonattainment area (hereafter referred to as the ``Memphis, TN-MS-AR Area'' or ``Area'') and a related State Implementation Plan (SIP) revision containing a maintenance plan and base year inventory for the Area. EPA is taking the following separate final actions related to the January 19, 2016, redesignation request and SIP revision: Approving the base year emissions inventory for the Area into the SIP; determining that the Memphis, TN-MS-AR Area is attaining the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS); approving the State's plan for maintaining attainment of the 2008 8-hour ozone NAAQS in the Area, including the motor vehicle emissions budgets (MVEBs) for nitrogen oxides (NOX) and volatile organic compounds (VOCs) for the year 2027 for the Tennessee portion of the Area, into the SIP; and redesignating the Tennessee portion of the Area to attainment for the 2008 8-hour ozone NAAQS. Additionally, EPA finds the MVEBs for the Tennessee portion of the Area adequate for the purposes of transportation conformity.
Approval and Promulgation of Air Quality Implementation Plans; Indiana; Redesignation of the Indiana Portion of the Louisville Area to Attainment of the 1997 Annual Standard for Fine Particulate Matter
The Environmental Protection Agency (EPA) is issuing a supplement to its July 11, 2013, proposed approval of Indiana's request to redesignate the Indiana portion of the Louisville, Indiana-Kentucky, area to attainment for the 1997 annual national ambient air quality standard (NAAQS or standard) for fine particulate matter (PM2.5). After EPA's proposed redesignation in 2013, an audit of the Kentucky monitoring program identified problems which invalidated monitoring data for 2012 and the beginning of 2013. Because of this invalid data, the area could not meet the requirement that the entire area must demonstrate attainment of the standard using the most current three years of data. This supplemental proposal provides new quality-assured, quality-controlled data for the most recent three years of data showing that the entire area attains the 1997 PM2.5 standard. In the supplemental proposal EPA is proposing that the entire Louisville area is attaining the 1997 PM2.5 NAAQS based on the most recent three years of data. EPA also discusses the maintenance plan out-year emission projections, and the Cross-State Air Pollution Rule (CSAPR) remanded budgets impact on the Louisville areabecause the status of these issues has changed from the initial proposal to now. EPA is seeking comment only on the issues raised in this supplemental proposal, and is not re-opening for comment other issues raised in the July 11, 2013, proposed approval.
Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units
This action sets forth the Environmental Protection Agency's (EPA) final decision on the issues for which it granted reconsideration on January 21, 2015, which pertain to certain aspects of the February 7, 2013, final rule titled ``Standards of Performance for New Stationary Sources and Emissions Guidelines for Existing Sources: Commercial and Industrial Solid Waste Incineration Units'' (CISWI rule). The EPA is finalizing proposed actions on these four topics: Definition of ``continuous emission monitoring system (CEMS) data during startup and shutdown periods;'' particulate matter (PM) limit for the waste-burning kiln subcategory; fuel variability factor (FVF) for coal-burning energy recovery units (ERUs); and the definition of ``kiln.'' This action also includes our final decision to deny the requests for reconsideration of all other issues raised in the petitions for reconsideration of the 2013 final commercial and industrial solid waste incineration rule for which we did not grant reconsideration.