This PDF is the current document as it appeared on Public Inspection on 09/25/2012 at 08:45 am.
EPA is proposing to approve the fine particulate matter (PM2.5) 2002 base year emissions inventory portion of the State of Maryland State Implementation Plan (SIP) revision submitted by the State of Maryland, through the Maryland Department of the Environment (MDE), on June 6, 2008 for Washington County, Maryland. The emissions inventory is part of Maryland's June 6, 2008 SIP revision that was submitted to meet nonattainment requirements related to the Washington County nonattainment area (hereafter referred to as Washington County Area or Area) for Maryland's 1997 PM2.5 National Ambient Air Quality Standard (NAAQS) SIP. EPA is proposing to approve the 2002 base year PM2.5 emissions inventory for Washington County submitted by MDE in accordance with the requirements of the Clean Air Act (CAA).
Written comments must be received on or before October 26, 2012.
Submit your comments, identified by Docket ID Number EPA-R03-OAR-2010-0154 by one of the following methods:
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C. Mail: EPA-R03-OAR-2010-0154, Donna Mastro, Acting Associate Director, Office of Air Program Planning, Mailcode 3AP30, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103.
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II. Summary of SIP Revision
III. Proposed Action
IV. Statutory and Executive Order Reviews
Throughout this document, whenever “we,” “us,” or “our” is used, we mean EPA. On July 18, 1997 (62 FR 38652), EPA promulgated the 1997 PM2.5 NAAQS, including an annual standard of 15.0 micrograms per cubic meter (µg/m3) based on a 3-year average of annual mean PM2.5 concentrations, and a 24-hour (or daily) standard of 65 µg/m3 based on a 3-year average of the 98th percentile of 24-hour concentrations. EPA established the standards based on significant evidence and numerous health studies demonstrating that serious health effects are associated with exposures to PM2.5.
Following promulgation of a new or revised NAAQS, EPA is required by the CAA to designate areas throughout the United States as attaining or not attaining the NAAQS; this designation process is described in section 107(d)(1) of the CAA. In 1999, EPA and state air-quality agencies initiated the monitoring process for the 1997 PM2.5 NAAQS and, by January 2001, established a complete set of air-quality data. On January 5, 2005, EPA published initial air-quality designations for the 1997 PM2.5 NAAQS (70 FR 944), which became effective on April 5, 2005, based on air-quality monitoring data for calendar years 2001-03.
On April 14, 2005, EPA promulgated a supplemental rule amending the agency's initial designations (70 FR 19844), with the same effective date (April 5, 2005) as that which was promulgated at 70 FR 944. As a result of this supplemental rule, PM2.5 nonattainment designations are in effect for 39 areas, comprising 208 counties within 20 states (and the District of Columbia) nationwide, with a combined population of approximately 88 million. The Washington County Area which is the subject of this rulemaking was included in the list of areas not attaining the 1997 PM2.5 NAAQS.
On June 6, 2008, the State of Maryland submitted a revision to the Maryland SIP (#08-05) to meet nonattainment requirements for the Washington County Area. On November 20, 2009 (74 FR 60199), EPA determined that Maryland had attained the 1997 PM2.5 NAAQS in the Washington County Area. That determination was based upon quality assured, quality controlled and certified ambient air monitoring data that showed the Area had monitored attainment of the 1997 PM2.5 NAAQS for the 2004-2006 monitoring period and that continued to show attainment of the 1997 PM2.5 NAAQS based on the 2005-2007 data. The November 20, 2009 determination suspended the requirements for Maryland to submit an attainment demonstration, associated reasonably available control measures, a reasonable further progress plan, contingency measures, and other planning SIP revisions related to attainment of the standard for so long as the nonattainment area continues to meet the 1997 PM2.5 NAAQS. On February 29, 2012, MDE withdrew portions of the June 6, 2008 Washington County, Maryland 1997 PM2.5 SIP revisions including the attainment plan, analysis of reasonably available control measures, attainment demonstration, contingency plans and mobile source budgets. To meet the requirements of CAA section 172(c)(3), MDE did not request the withdrawal of the 2002 base year emission inventory portion of the June 6, 2008 1997 PM2.5 SIP revision. Section 172(c)(3) of the CAA requires submission and approval of a comprehensive, accurate, and current inventory of actual emissions.
II. Summary of SIP Revision
The 2002 base year emission inventory submitted by MDE on June 6, 2008 for Washington County, Maryland includes emissions estimates that cover the general source categories of stationary point sources, stationary nonpoint sources, nonroad mobile sources and onroad mobile sources. The pollutants that comprise the inventory are nitrogen oxides (NOX), volatile organic compounds (VOCs), PM2.5, coarse particles (PM10), ammonia (NH3), and sulfur dioxide (SO2). EPA has reviewed the results, procedures and methodologies for the 2002 base year emissions inventory submitted by MDE for Washington County, Maryland. The year 2002 was selected by MDE as the base year for the emissions inventory per 40 CFR 51.1008(b). A discussion of the emissions inventory development as well as the emissions inventory can be found in the June 6, 2008 SIP submittal.
The CAA section 172(c)(3) emissions inventory is developed by the incorporation of data from multiple sources. States were required to develop and submit to EPA a triennial emissions inventory according to the Consolidated Emissions Reporting Rule (CERR) for all source categories (i.e., point, area, nonroad mobile and on-road mobile). The 2002 emissions inventory was based on data developed by MDE. The data were developed according to current EPA emissions inventory guidance, “Emissions Inventory Guidance for Implementation of Ozone and Particulate Matter NAAQS and Regional Haze Regulations,” August 2005. EPA agrees that the process used to develop this emissions inventory is adequate to meet the requirements of CAA section 172(c)(3), the implementing regulations, and EPA guidance for emission inventories. More information regarding the review of the base year inventory can be found in the technical support document (TSD) that is located in this docket.
III. Proposed Action
EPA is proposing to approve the 2002 base year emissions inventory portion of the SIP revision submitted by Maryland through MDE on June 6, 2008 for Washington County, Maryland. We have made the determination that this action is consistent with section 110 of the CAA. EPA is soliciting public comments on the issues discussed in this document. These comments will be considered before taking final action.
IV. Statutory and Executive Order Reviews
Under the CAA, the Administrator is required to approve a SIP submission that complies with the provisions of the CAA and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the CAA. Accordingly, this action merely proposes to approve state law as meeting Federal requirements and does not impose additional requirements beyond those imposed by state law. For that reason, this proposed action:
- Is not a “significant regulatory action” subject to review by the Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993);
- Does not impose an information collection burden under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
- Is certified as not having a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.);
- Does not contain any unfunded mandate or significantly or uniquely affect small governments, as described in the Unfunded Mandates Reform Act of 1995 (Pub. L. 104-4);
- Does not have Federalism implications as specified in Executive Order 13132 (64 FR 43255, August 10, 1999);
- Is not an economically significant regulatory action based on health or safety risks subject to Executive Order 13045 (62 FR 19885, April 23, 1997);
- Is not a significant regulatory action subject to Executive Order 13211 (66 FR 28355, May 22, 2001);
- Is not subject to requirements of Section 12(d) of the National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the CAA; and
- Does not provide EPA with the discretionary authority to address, as appropriate, disproportionate human health or environmental effects, using practicable and legally permissible methods, under Executive Order 12898 (59 FR 7629, February 16, 1994).
In addition, this proposed rule, pertaining to the PM2.5 2002 base year emissions inventory portion of the Washington County, Maryland June 6, 2008 SIP submittal, does not have tribal implications as specified by Executive Order 13175 (65 FR 67249, November 9, 2000), because the SIP is not approved to apply in Indian country located in the state, and EPA notes that it will not impose substantial direct costs on tribal governments or preempt tribal law.
List of Subjects in 40 CFR Part 52
- Environmental protection
- Air pollution control
- Nitrogen dioxide
- Particulate matter
- Reporting and recordkeeping requirements
- Sulfur oxides
- Volatile organic compounds
Dated: August 30, 2012.
Acting Regional Administrator, Region III.
[FR Doc. 2012-23698 Filed 9-25-12; 8:45 am]
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