### Macon PM2.5 Nonattainment Area – Redesi gnation Request and Maintenance Plan

Administrative Materials for SIP submittal dated: May 31, 2012

1. A formal letter of submittal from t he Governor or his designee, requesting EPA approval of the plan or revision thereof (hereafter “the plan”). The cover letter transmitting this proposed maintenance plan is the formal letter of

submission.

2. Evidence that the State has adopted the plan in the State code or body of regulations; or issued the permit, order, consent agreement (hereafter “document”) in final form. That evidence shall include the date of adoption or final issuance as well as the effective date of the plan, if different from the adoption/issuance date. The State promulgated Georgia Rules 391-3-1.02(2)(sss) and (uuu), which require

SO 2 controls and establish minimum SO 2 control efficiencies on multiple Georgia electric generating units. These rules are a part of the subject maintenance plan.

3. Evidence that the State has the necessary legal authority under State law to adopt and implement the plan. The Georgia Air Quality Act, Article 1: Air Quality (O.C.G.A. 12-9, et. seq.) provides the necessary legal authority under State law to adopt and implement the revisions. The Act, in its entirety, is located at http://www.lexisnexis.com/hottopics/gacode/ under Title 12, Chapter 9, Article 1.

4. A copy of the actual regulation, or document submitted for approval and incorporation by reference into the plan, including indication of the changes made to the existing approved plan, where applicabl e. The submittal shall be a copy of the official State regulation/ document signed, stamped, dated by the appropriate State official indicating that it is fully enforceable by the State. The effective date of the regulation/document shall, whenever possible, be indicated in the document

itself. Enclosed is a copy of the affected Maintenance Plan, dated May 31, 2012, for approval and incorporation into the plan. This maintenance demonstration planmaintains all previously-adopted control measures contained in all previouslysubmitted attainment demonstration submittals.

5. Evidence that the State followed all of the procedural requirements of the State’s laws and Constitution in conducting and completing the adoption/issuance of the plan and compilation of public comments and the State’s response thereto. The procedural requirements associated with this plan and public comment period

are included in the submittal to EPA.

6. Evidence that public notice was given of the proposed change consistent with procedures approved by EPA, including the dat e of publication of such notice and Certification that public hearings(s) were held in accordance with the information provided in the public notice and the State's laws and constitution, if applicable. Documentation for the public notice (posted April 17, 2012), hearing (held May 17, 2012 )and comment requirements is included in the submittal to EPA.

### Macon PM2.5 Nonattainment Area – Redesi gnation Request and Maintenance Plan

Technical Support for SIP Submittal dated: May 31, 2012

1. Identification of all regulated pollutants affected by the plan. The proposed Maintenance Plan covers emissions of primary PM2.5 and of SO 2 and NO

x

, which are PM2.5 precursors

2. Identification of the locations of affected sources including the EPA attainment/non-attainment designation of the locations and the status of the attainment plan for the affected areas(s). The Maintenance Plan is applicable to the Macon, GA, Annual PM2.5 Nonattainment Area, Georgia.

3. Quantification of the changes in plan allowable emissions from the affected sources; estimates of changes in current actual emissions from affected sources or, where appropriate, quantification of changes in actual emissions from affected sources through calculations of the diffe rences between certain baseline levels and allowable emissions anticipated as a result of the revision. Refer to the maintenance plan.

4. The State’s demonstration that the national ambient air quality standards, prevention of significant deterioration increments, reasonable further progress demonstration, and visibility, as applicable, are protected if the plan is approved and implemented. For all requests to redesignate an area to attainment for a national primary ambient air quality standard, under section 107 of the Act, a revision must be submitted to provide for the maintenance of the national primary ambient air quality standards for at least 10 years as required by section 175A of

the Act. The NAAQS will be protected through 2023 if this revision is approved and implemented.

5. Modeling information required to support the proposed revision, including input data, output data, models used, justification of model selections, ambient monitoring data used, meteorological data used, justification for use of offsite data (where used), modes of models used, assu mptions, and other information relevant to the determination of adequacy of the modeling analysis. Refer to the maintenance plan.

6. Evidence, where necessary, that em ission limitations are based on continuous emission reduction technology. The State and Federal control measures for point sources, onroad mobile sources,

and nonroad mobile sources that are documented in Section 2 of the maintenance plan are all based on continuous emission reduction technology.

### Macon PM2.5 Nonattainment Area – Redesi gnation Request and Maintenance Plan

7. Evidence that the plan contains emissi on limitations, work practice standards and recordkeeping/reporting requirements, where necessary, to ensure emission

levels. Section 2 of the maintenance plan documents Federal and State measures that have contributed to permanent and enforceable emissions reductions in the Macon

Area and that have resulted in attainment of the annual PM2.5 standard. Section 3 of the maintenance plan demonstrates that, with the Federal and State measures in place, emission levels will be kept at levels sufficient to maintain attainment of the standard through the year 2023.

8. Compliance/enforcement strategies, including how compliance will be determined in practice.

Enforcement will be carried out as described in the State/EPA Enforcement Agreement.

9. Special economic and technological just ifications required by any applicable EPA policies, or an explanation of why such justifications are not necessary. No special economic or technological justifications are required for this proposed

Maintenance Plan.