Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 1 **MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY**  **OFFICE OF POLLUTION CONTROL**

**TECHNICAL SUPPORT DOCUMENT** 
**ATTENDANT TO THE STATE IMPLEMENTATION PLAN (SIP) REVISION FOR PURPOSES OF THE** 
**EMISSIONS STATEMENT AND EMISSIONS INVENTORY FOR THE OZONE NONATTAINMENT AREA OF DESOTO COUNTY, MISSISSIPPI** 

**ADOPTED NOVEMBER 20, 2014** Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 2 **TABLE OF CONTENTS** Discussion
................................ ................................ ................................ ............. Page 3 Purpose of the Revision.
................................ ................................ ....................... Page 3 Sources Affected by

the Revision.
................................ ................................ ........ Page 3 Pollutants Involved.
................................ ................................ .............................. Page 4 Change s in Allowable Emissions.
................................ ................................ ......... Page 4 Lo cation/Attainment Status.
................................ ................................ ................. Page 4 Part D SIP/Attainment Demons tration Impact. ................................ ..................... Page 4 Air Quality

Impacts. ................................ ................................ .............................. Page 4 Modeling.
................................ ................................ ................................ .............. Page 4 Compliance Methods to be Employed.
................................ ................................ . Page 4 Public Comment Period
. ................................ ................................ ....................... Page 4 Response to Comments on Proposed SIP Revision.
................................ ............. Page 5 Regulation Changes.
................................ ................................ ............................. Page 5 Final Adoption of SIP Revision
. ................................ ................................ ........... Page 5
**ATTACHMENTS** Regulations in EPA format
................................ ................................ ........ Attachment 1 11 Miss. Admin. Code, Part 2, Chapter 11 Proofs of Publication.
................................ ................................ ................. Attachment 2 Notice of Public Comment Period Proofs of Publication Final Adoption Evidence.
................................ ................................ .......... Atta chment 3 Commission Order Secretary of State Filing FormMississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 3 **DISCUSSION:** The purpose of this State Implementation Plan (SIP) Revision is to implement Sections 182(a)(1) and 182(a)(3) of the Clean Air Act (CAA), as amended (42 United States Code (U.S.C.) 7401 et seq.), with respect to the requirements for an Emissions Statement and an Emissions Inventory

for the Ozone Nonattainment Area of DeSoto County, Mississippi. **PURPOSE OF THE REVISION:** The purpose of this State Implementation Plan (SIP) Revision is to implement Sections 182(a)(1) and 182(a)(3) of the Clean Air Act (CAA) , as amended (42 United States Code (U.S.C.) 7401 et seq.), with respect to the requirements for an Emissions Statement and an Emissions Inventory

for the Ozone Nonattainment Area of DeSoto County, Mississippi. Section 182(a)(3)(B) of the CAA requires M arginal and above areas to submit an emissions statement within 2 years of designation as nonattainment. Specifically it provides that the emissions statement must: “...require that the owner or operator of each stationary s ource of oxides of nitrogen or volatile organic compounds provide the state with a statement, in such form as the Administrator may p rescribe (or an equivalent alternative developed by t he state), for classes or categories of sources, showing the actual emissions of oxides of nitrogen and volatile organic compounds from that source. The first such statement shall be submitted within 3 ye ars after the date of the enactment of the CAA Amendments of 1990. Subsequent statements shall be submitted at least every year thereafter.” Appendix U contains new state regulations which will implement the Emissions Statement requirement for any areas designated as nonattainment for the National Air Quality Standard for ground
- level ozone. The new regulation s are 11 Mississippi Administrative Code, Pa rt 2, Chapter 11, Regulations for Ambient Air Quality

N onattainment Areas. The regulation s are applicable to sources in DeSoto County, Mississippi as well as any o ther areas that might be designated nonattainment in the future. CAA section 182(a)(1) requires that Marginal and above ozone nonattainment areas submit a base ye ar emissions inventory f or the nonattainment area 2 ye ars after designation as nonattainment. The emissions are reported as tons/average summer day o f pollutant. In accordance with the requirements of EPA’s Emissions Inventory Guidance for Implementation of Ozone and Particulate Matter National Ambient Air Quality Standards (NAAQS) and Regional Haze Regulations, November 2005, the only p ollutants reported are Nitrogen Oxides (NOx) and Volatile Organic Compounds (VOC) and emissions are summed as tons/average summer day f or the ye ar 2011. Appendix V contains the Emission Inventory for DeSoto County, Mississippi. **SOURCES AFFECTED BY THE REVISION:** This SIP revision potentially a ffect s all sources and practices subject to air pollution control regulations in Mississippi.Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 4 **POLLUTANTS INVOLVED:** The pollutants affected by this SIP Revision are all pollutants for which the U.S. Environmental Agency

h as promulgated a National Ambient Air Quality S tandard (NAAQS)
. **CHANGES IN ALLOWABLE EMISSIONS:** This SIP Revision does not include any provisions for emission limitation changes. **LOCATION/ATTAINMENT STATUS:** The northern portion of DeSoto County, Mississippi has been classified as Marginal Non
attainment for the 2008 National Ambient Air Quality Standard (NAAQS) for Ozone. All other areas of the state are designated attainment for all NAAQS. **PART D SIP/ATT AINMENT DEMONSTRATION IMPACT:**  This SIP Revision conforms with the requirements of Section 182(a)(3)(B) and Section 182(a)(1) of the Federal Clean Air Act. **AIR QUALITY IMPACTS:** This SIP Revision will have no adverse impact on air quality
. **MODELING:** No modeling is necessary for this SIP Revision. **COMPLIANCE METHODS TO BE EMPLOYED:** No compliance methodology is applicable to this SIP Revison
. **PUBLIC HEARING:** Public participation on the SIP Revision was achieved by a public hearing held on October 2, 20 14, at 10:30 a.m. in the Commission Hearing Room (Room 104A) of the Mississippi Department of Environmental Quality O ffice Building located at 515 E. Amite Street, Jackson, Mississippi 39201 in accordance with the information provided in the public notice and Mississippi Administrative Procedures Act. The notice for public hearing was published consistent with procedures approved by EPA. The notice of public hearing was published on September 2, September 9, and September 16, 2014, in daily

n ewspapers in the cities of Gulfport, Hernando, Jackson, and Tupelo in the State of Mississippi. The notice of public hearing, the proposed SIP revision, and proposedMississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 5 amendments to state air pollution control regulations were made available for public review in the main branches of the public libraries in Gulfport, Hernando, and Tupelo and at the Mississippi Department of Environmental Quality, 515 E. Amite St., Jackso n, Mississippi, 39201 and was also available on the Department’s website http://www.deq.state.ms.us. The public notice was also mailed to persons on the air pollution control regulation mailing list. TSD Attachment 2 contains a copy of the notice of public hearing and copies of proofs of publication of the notice of public hearing. **RESPONSE TO COMMENTS ON PLAN REVISION:** No comments regarding the SIP Revision other than from EPA were received during the public comment period. Changes suggested by E PA were incorporated into the SIP Revision. Attachment 3 contains the EPA comment letter. **REGULATION CHANGES:** Appendix U of the SIP Revision contains new state regulations which will implement the Emissions Statement requirement for any areas designated as nonattainment for the National Air Quality

S tandard for ground
- level ozone. The new regulations are 11 Mississippi Administrative Code, Part 2, Chapter 11, Regulations for Ambient Air Quality Nonattainment Areas. The regulations are applicable to sources in DeSoto County, Mississippi as well as any other areas that might be designated nonattainment in the future. See TSD Attachment 1
. **FI NAL ADOPTION OF PLAN REVISION**  **:** TSD Attachment 4 contains evidence of final adoption of the SIP revision
.Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 **ATTACHMENT 1**
**REGULATIONS IN EPA FORMAT**Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 **ATTACHMENT 2** 
**NOTICE OF PUBLIC HEARING**  **PROOFS OF PUBLICATION**Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 **ATTACHMENT 3** 
**EPA COMMENT LETTER** Mississippi NAA SIP, Final

Technical Support Document Adopted November 20, 2014 **ATTACHMENT 4**
**EVIDENCE OF ADOPTION OF SIP REVISION AND REGULATIONS**