STATE OF MISSISSIPPI tALeY seRSOuR GovERiaoR MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY TRUDY D . FisrER, FxEcvnve DtREcroR 

### November 28, 2007

Mr. James I . Palmer, Jr. Regional Administrator U .S. Environmental Protection Agency 61 Forsyth Street 

### Atlanta, Georgia 30303-8960 Dear Mr . Palmer : l7 Dr .. 

# TDg, U 4 g9

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Re: 110(a)(2)(D)(i) SIP Revision ,

Enclosed is a State Implementation Plan (SIP) Revision for the Control of Air Pollution (including the Technical Support Document) regarding requirements of Section 110(a)(2)(D)(i) of the Federal Clean Air Act as it pertains to prevention of significant deterioration of air quality and visibility. We are transmitting, under separate cover, four hard copies and an electronic copy on compact disk to Dick Schutt of your agency. The SIP Revision includes adoption, by reference, of amendments to federal prevention of significant deterioration of air quality regulations in order to make the state regulations consistent with federal requirements . The SIP Revision includes amendments to state air pollution control regulations specifically "Regulations for the Prevention of Significant Deterioration of Air Quality", APC-S-5. The SIP Revision and regulation amendments were adopted on August 23, 2007, by the Mississippi Commission on Environmental Quality. The regulation amendments became effective on September 24, 2007. We certify that this SIP Revision and the amendments to APC-S-5 have been completed in accordance with the Mississippi Administrative Procedures Act and the Mississippi Pollution Control Law

. We further certify that a public hearing was held on July 17, 2007, to receive comments regarding these amendments . We feel that this SIP Revision submittal is complete . Therefore, we request approval of this SIP Revision by the U .S. Environmental Protection Agency.

PosT OFFICE Box 20305 " JncxsoN, Mississippi 39289-1305 " TEL: (601) 961-5000 " Fnx: (601) 961-5794 " www .deq.state.ms.us AN EQUAL OPPORTUNiTY EMPLOYER. . ,Mr. James I . Palmer, Jr .

Page 2 

### November 28, 2007 If you have any questions, please contact me at 601-961-5000, or Maya Rao, Chief, Air Division, at 601-961-5242. Very truly yours, Trudy PLY

Aher Executive Director TDF/MR:jar Enclosures cc: Ms. Beverly Banister, Director Air, Pesticides, and Toxics Management Division U .S. EPA, Region IVMISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY 

### OFFICE OF POLLUTIONCONTROL

STATE IMPLEMENTATION PLAN (SIP)

REVISION



### REGARDING REQUIREMENTS OF SECTION 110(a)(2)(D)(i) OF THE FEDERAL CLEAN AIRACT AS IT PERTAINS TOPREVENTION OF SIGNIFICANT DETERIORATION OF AIR QUALITY AND VISIBILITY

INCLUDINGAMENDMENTS TO "REGULATIONS FORTHE PREVENTION OF SIGNIFICANT DETERIORATION OF AIRQUALITY" 

### APC-S-5 Adopted August 23, 2007

### TABLE OF CONTENTS

1 .42 Introduction: State Implementation Plan (SIP) Revision Regardingrequirements of

Section 110(a)(2)(D)(i) ofthe Federal Clean Air ActAs It Pertains to the Prevention of Significant Deterioration ofAir Quality (PSD) and Visibility. 1 .43 Notification ofPublic Hearing for the SIP Revision 3.20 Legal Authority for the SIP Revision 5.18 Control Strategy for the SIP Revision 6 .22 Control Regulations for the SIP Revision 

### 14.1 .17 Health Effects of the SIP Revision 14.3.17 Economic Effects of the SIP Revision 14.5 .17 Social Effects of the SIP Revision 14.6.17 Air Quality Effects of the SIP Revision Appendix G-10 Amendments to "Regulations for the Prevention ofSignificant Deterioration ofAir

Quality", APC-S-5

I le(a)(2)(D)(i) Final SIP August 23, 2007 Stateof Mississippi C . Simmons1 .42 Introduction: State Implementation Plan (SIP) Revision Re ardin requirements of Section

110(a)(2)(D)(i) of the Federal Clean Air Act As It Pertains to the Prevention of Significant Deterioration of Air Quality (PSD) and Visibility. Thepurpose ofthe SIP revision is to meet the requirements ofSection 110(a)(2)(D)(i) ofthe Federal Clean Air Act addressing interstate air pollution transport for the 1997 8-hour and PM2 .5 National Ambient Air Quality Standards (NAAQS) as it pertains to prevention of significant deterioration of air quality and visibility. This SIP revision and amendments to the State of Mississippi's "Regulations for the Prevention of Significant Deterioration ofAir Quality", APC-S-5 meets the requirements of Section 110(a)(2)(D)(i) of the Federal Clean Air Act addressing interstate air pollution transport for the 1997 8-hour ozone and PM2,$ National Ambient Air Quality Standards (NAAQS) as it pertains to prevention of significant deterioration ofairqualityandvisibility. U .S. Environmental Protection Agency (EPA) issued SIP guidance on August 11, 2006 detailing four prongs that a state must address to satisfy Section 110(a)(2)(D)(i) SIP requirements. Mississippi is subject to the Clean Air Interstate Rule and has submitted the required CAIR SIP thereby complying with Prongs 1 and 2 according to EPA . Prong 3 requires that a state SIP contain adequate provisions prohibiting anyair pollution sources or other type ofemissions activity within the state fromemitting any air pollutants in amounts which will interfere with measures required to meet an implementation plan for any other state related to Prevention of Significant Deterioration. Mississippi is in attainment with all NAAQS so only the PSD requirements of Prong 3 are beingaddressed in this SIP Revision. Mississippi confirms that the major sources in the state are subject to a Prevention of Significant Deterioration of Air Quality permitting program that applies to the 8-hour ground-level ozone standard. Mississippi does consider volatile organic compounds (VOC) and nitrogen oxides (NO,,) to be precursors of ground-level ozone. Mississippi also confirms that major sources in the state are subject to PSD permitting programimplemented in accordance with EPA's interimguidance ofusing PM Io as asurrogate for PM2

.5. Mississippi has been following EPA's guidance on using PMIoas a surrogate for PM2

.5. This SIP revision includes amendments to Mississippi's "Regulations for the Prevention of Significant Deterioration", APC-S-5 which will adopt, by reference, federal PSDregulations promulgated in 40CFR51 .166 and 40 CFR52.21 byJune 15, 2007. The amendments toAPC-S-5 will update state PSDregulations to beconsistent with federal PSD regulations. Prong 4 requires that a state SIPcontain adequate provisions prohibiting any air pollution sources or other type ofemissions activity within the state fromemitting anyair pollutants in amounts which will interfere with measures required to meet an implementation plan for any other state related to Regional Haze and Visibility. Mississippi can not assess whether there is interference with measures designed to protect visibility in any applicable SIP for any other state until regional haze SIPs are finalized. Mississippi is actively working towards regional haze SIP development and is planning to II O(a)(2)(D)(i) Final SIPAugust 23, 2007 Stateof Mississippi C. Simmonssubmit a regional haze SIP by December 17, 2007. Appendix G-11 includes the Mississippi Department of Environmental Quality's (MDEQ) letter to EPAdated May 24, 2007, responding to the requirements of Section 110(a)(2)(D)(i) .

110(a)(2)(D)(i) Final SIP August 23, 2007 Stateof Mississippi C. Simmons1 .43 Notification of Public Hearing for SIP Revision and Amendments to"Reg_ulations for the Prevention of Significant Deterioration of Air Quality", APC-S-5. Public participation on the SIP Revision was achieved by a public hearingheld on Tuesday, July 17, 2007, in the Air Division Training/Meeting Room(Room 3-660) at the Mississippi Department ofEnvironmental Quality, Office ofPollution Control, Air Division, 101 Capitol Centre, 101 West Capitol St., Jackson, Mississippi in accordance with the information provided in the public notice and MississippiAdministrative Procedures Act. The notice for public hearing was published consistent with procedures approved by EPA . The notice ofpublic hearing was published on June 15, June 22, and June 29, 2007, in daily newspapers in the cities of Gulfport, Jackson, and Tupelo in the State of Mississippi . The notice ofpublic hearing andthe proposed SIP revision was made availablefor public review in the main branches of the public libraries in the above mentioned cities and at the Mississippi Department of Environmental Quality, Southport Center, 2380 Highway 80 West, Jackson, Mississippi . This notice was also mailed to persons on the air pollution control regulation mailing list . The notice of public hearing follows this page.

I10(a)(2)(D)(i) Final SIPAugust 23, 2007 Stateof Mississippi C. Simmons

### MISSISSIPPI COMMISSION ON ENVIRONMENTAL QUALITY NOTICE OF PROPOSED RULEMAKING NOTICE OF PUBLIC HEARING PUBLIC NOTICE START DATE: June 15, 2007 PLEASE TAKE NOTE that the Mississippi Commission on Environmental Quality ("Commission") is considering a Revision to the State Implementation Plan forAir Pollution Control (SIP Revision) and amendments to stateair pollutioncontrol regulation entitled "Regulations for the Prevention of Significant DeteriorationofAir Quality", APC-S-5 . The proposed SIP Revision and regulation amendments will be applicable statewide. The proposed SIP Revision involves the addition of clarifying language confirming that the Mississippi Department of Environmental Quality (MDEQ) is complying with the provisions of section 110(a)(2)(D)(i) of the Clean Air Act with respect to the Prevention of Significant Deterioration air permitting program and plans for implementing federal regional haze regulations promulgated by the U

.S. Environmental Protection Agency (USEPA) . The SIP Revision includes: A . Proposed amendments to "Regulations for the Prevention ofSignificant Deterioration ofAir Quality", APC-S-5 to adopt, by reference, federal regulations as promulgated in 40 CFRParts 51 .166 and 52.21 in order to make the state regulations consistent with the federal requirements. B . Proposed language to clarify that concerning the federal regional haze regulations, MDEQcan not assess whether there is any interference with measures designed to protect visibility in any applicable SIPforanyother state until regional haze SIPs are finalized. MDEQis actively workingtowards regional haze SIPdevelopment andis planning to submit a regional haze SIP Revision by December 17, 2007. I . Manner By Which the Public May Comment . Copies ofthe proposed amendments to the referenced regulations maybe obtained by calling Ms. Maya Rao at 601-961-5242 or Mr . Connie Simmons at 601-961-5165 or writingto Mississippi Department of Environmental Quality, Air Division, 101 West Capitol Street, Jackson, Mississippi 39201 . Forthose with internet access, a copy of the proposed SIP revision and amendments to the referenced regulations may be found on the Mississippi Department of Environmental Quality's website at http//www

.deq.state.ms.us. Also, copies of the proposed SIP Revision and proposed amendments to the referenced regulations will be available for public review through Tuesday, July 17, 2007, in the main branch of public libraries in the cities ofGulfport, Jackson, and Tupelo in the State ofMississippi . The proposed SIP Revision andamendments to the referenced regulations may also be reviewed in the offices of the Mississippi Department of Environmental Quality, Southport Center, 2380 Highway 80West, Jackson, Mississippi . For an appointment to review the proposed SIP Revision and the proposed regulation amendments at the offices of MDEQ, contact Mr . Ted Lampton at (601) 961-5373. I l0(a)(2)(D)(i) Final SIP August 23, 2007 State of Mississippi C . SimmonsMembers of the public may present verbal or written comments at the public hearing

described below

. Also, written statements regarding the proposed SIP Revision and proposed regulation amendments will be made part of the public hearing record if delivered by 5:00 p.m ., Tuesday, July 17, 2007, to the attention of Ms. Maya Rao at the address shown above. II . Notice of Public Hearing. Apublic hearing regarding the proposed SIP Revision and regulation amendments will be conducted. The hearing will be held on Tuesday, July 17, 2007, at 10:00a.m . in the Air Division Training/Meeting Room(Room3-660) of the Mississippi Department of Environmental Quality Office Building at 101 Capitol Centre, 101 West Capitol Street, Jackson, Mississippi . Ill . Additional Information. For additional information, please contact Ms. Maya Rao at 601-961-5242 or Mr . Connie Simmons at 601-961-5165.

SIP Revision 110(a)(2)(D)(i) Public Notice June 15 2007

I 10(a)(2)(D)(i) Final sip August 23, 2007 State of Mississippi C. Sirtmmons

### 3.20 Legal Authority for the SIP Revision No legislative actions are needed concerning this SIP revision. The State of MississippiAir &Water Pollution Control Law, Section 49-17-1 to 49-17-43, Mississippi Code of 1972, gives the Commission on Environmental Quality the necessary legal authority to adopt and implementthis SIP revision. The State act (as ofJuly l, 2004) Mississippi Code Annotated, Section 49-17-13(3) designates the Commission as the Stateair pollution control agency for all purposes of the federal pollution control legislation and programs and take all actions necessary thereto. Public participation on the SIP revision was achieved by a public hearing on July 17, 2007. The public hearing was held at 10:00 a.m ., Tuesday, July 17, 2007, in the 3rd floor Air Division Training/Meeting Room (Room 3-660) at the Mississippi Department of Environmental Quality office building, 101 Capitol Centre, 101 West Capitol St ., Jackson, Mississippi 39201 .

110(a)(2)(D)(i)Final SIPAugust 23, 2007 State ofMississippi C . Simmons5.18 Control Strateay for the SIP Revision

This SIPrevision includes amendments to air pollutioncontrol regulationswhichare control regulations and control strategies. Therefore, no additional control strategies are needed.

110(a)(2)(Dxi) Final SIP August 23, 2007 Stateof Mississippi C . Simmons6

.22 Control Regulations for the SIP Revision Amendments to state regulations are included in Appendix G-10 of this SIP revision.

I10(a)(2)(D)(i) Final SIP August 23, 2007 Stateof Mississippi C . Sinmons

### 14.1 .17 Health Effects of the SIP Revision No adverse health effects are expected to be caused by this SIP revision.

I10(a)(2)(D)(i) Final SIP August 23, 2007 State of Missiseippi C . Simmons14.3.17 Economics Effects ofthe SIP Revision No adverse economic effects due to this SIP revision are foreseen.

I ]0(a)(2)(D)(i) Final SIPAugust 23, 2007 State of Mississippi C. Simmons14.5 .17 Social Effects of the SIP Revision No adverse social effects are foreseen as a result ofthis SIP revision.

I 10(a)(2)(D)(i) Final SIP August 23,2007 Stateof Mississippi C . Si . . . :

### 14.6.17 Air Quality Effects of the SIP Revision This SIP revision will not have any adverse air quality effects.

110(a)(2)(D)(i) Final SIP August 23, 2007 Stateof Mississippi C. SimmonsMISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY OFFICE OF POLLUTIONCONTROL STATE IMPLEMENTATION PLAN REVISION

APPENDIX G-10 AMENDMENTS TO "REGULATIONS FORTHE PREVENTIONOF SIGNIFICANT

DETERIORATIONOF AIRQUALITY"

APC-S-5

1 ]0(ax2)(D)(i) FinalSIPAugust 23, 2007 State of Mississippi C . Simmons"Regulations for the Prevention ofSignificant Deterioration ofAirQuality", APC-S-5are amended

as follows this page:

l ]0(a)(2)(DXi) Final SIP August 23, 2007 State ofMississippi C . SimmonsMISSISSIPPI COMMISSION ON ENVIRONMENTAL QU ALITY "REGULATIONS FORTHE PREVENTION OF SIGNIFICANT DETERIORATION OF AIRQUALITY" APC-S-5 Adopted August 23, 2007

110(a)(2)(D)(i) Final SIP August 23, 2007 State ofMississippi C . Simmons

### MISSISSIPPI COMMISSION ON ENVIRONMENTAL QUALITY

REGULATIONS FORTHE PREVENTIONOF SIGNIFICANT DETERIORATION OF AIRQUALITY 

### APC-S-5 Adopted June 28, 1990 Amended April 25, 1991 Amended December 9, 1993 Amended August 22, 1996 Amended July 28, 2005 Amended August 23, 2007 1 . The purpose of this regulation is to implement a program for the prevention of significant deterioration of air quality as required by 40 CFR51 .166. This regulation supercedes and replaces the previous adoption by reference of 40 CFR 52.21 and 40 CFR 51 .166. 40 CFR52.21 and 51 .166 as used in this regulation refer to the federal regulations as amended and promulgated by June 15, 2007, except as provided in 2 . below . CFRrefers to the "Code ofFederal Regulations." 2 . Other than the subsections and phrases listed below and except for the changes setforth in Section 3. ofthis regulation,the provisions of40 CFR52.21 as amended andpromulgated by June 15, 2007, are incorporated herein and adopted by reference by the Mississippi Commission on Environmental Quality as official regulations ofthe State ofMississippi and shall hereafter be enforceable as such. The following subsection and phrases of 40 CFR 52.21 are excluded fromthis regulation: 2.1 (a)[Plan disapproval], 2 .2 (q)[Public Participation], 2.3 (s)[Environmental Impact Statement], 2.4 (u)[Delegation of authority], 2 .5 (x)[Clean Unit Test], 2.6 (y)[Clean Unit Provisions], 2.7 (z)[PCP exclusion procedural requirements], _ 2 .8 (cc)[Routine maintenance, repair, and replacement], and2 .9 The phrase "in circumstances where there is a reasonable possibility that a project that is not a part of a major modification may result in a significant emissions increase" in paragraph (r)(6) of (r)[Source obligation] . 3. The term "Administrator" as it appears in 40 CFR52.21 shall mean the Mississippi Environmental Quality Permit Board, except that : 3.1 In subparagraph (b)(3)(iii) [relating to "net emissions increase"], it shall mean either the Mississippi Environmental Quality Permit Board or the Administrator of the United States Environmental Protection Agency (USEPA) . 3.2 In the following subsections, it shall continue to mean the Administrator of the USEPA : a. (b)(17) [definition of "federally enforceable"] ; b. paragraph b(37)(i) ; c. paragraph b(43) ; d. paragraph b(48)(ii)(c) ; e. paragraph b(50)(i) ; f. paragraph b(51) ; g. (g)(1)-(g)(6) [Redesignation] ; h. (1)(2) [Air quality models] ; i . (p)(2) [concerning Federal Land Manager] ; j- (t) [Disputed permits or redesignations] . 4. Subsections 40 CFR 51 .166(f) Exclusions from Increment Consumption (excluding the phrase "The plan may provide that . . .") and 40 CFR 51 .166(q) "Public Participation" (excluding the phrase "The plan shall providethat .") are incorporated herein and adopted by reference, except for the changes set forth below : 4 .1 The phrases "the plan provides that" and "it shall also provide that" are excluded fromparagraph 40 CFR 51 .166(f)(2), 4.2 The term "Administrator" as it appears in subparagraphs (f)(1)(v), (f)(4), and (q)(2)(iv) shall continue to mean the Administrator of the USEPA,4

.3 The phrase "specified time period" in subparagraph (q)(1) shall mean thirty (30) days, 4.4 The phrase "reviewing authority" shall mean Mississippi Department of Environmental Quality, and 4 .5 The words "one year" in subparagraph (q)(2) shall be replaced by the words "one hundred and fifty (150) days." 5 . The Executive Director of the Mississippi Department of Environmental Quality shall transmit to the Administrator of the USEPAa copy of each permit application filed under this regulation and shall notifythe Administrator ofthe USEPAofeach significant action the Executive Director takes on the application. 6 . This regulation applies to any stationary'source or modification to which 40 CFR 52.21 applied as of the date of adoption of this regulation, but for which the Mississippi Environmental Quality Permit Board had not issued a permit pursuant to 40 CFR 52.21 by that date.MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY 

### OFFICE OF POLLUTION CONTROL

TECHNICAL SUPPORT DOCUMENT

ATTENDANT TOTHE SIP REVISION 

### REGARDING REQUIREMENTS OF SECTION 110(a)(2)(D)(i) OF THE FEDERAL CLEANAIRACT AS IT PERTAINS TO PREVENTION OF SIGNIFICANT DETERIORATION OF AIRQUALITYAND VISIBILITY

INCLUDINGAMENDMENTS TO "REGULATIONS FORTHE PREVENTION OF SIGNIFICANT DETERIORATIONOF AIRQUALITY" APC-S-5 Adopted August 23, 2007

### TABLE OF CONTENTS

Discussion . . . .. . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . .. . . .. .. . . .. . . . . .. . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 1 Purpose of the Revision. . . . .. .. . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . .Page 2 Sources Affected by the Revision. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . . . .Page 2 Pollutants Involved. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . .Page 2 Changes in Allowable Emissions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. .. . . . . . . . . . . . . . . . . Page 2 Location/Attainment Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . Page 2 Part DSIP/Attainment Demonstration Impact. . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . ., . . . . . . . . . .Page 2 Air Quality Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. .. . . . . . . . . . . .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2 Modeling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .. . . .. .. . . . . .. . . .. .. . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . Page 2 Compliance Methods to be Employed.. .. .. . . . . . . . . .. .. . . .. . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . Page 2 Public Hearing. . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . .. . . .. . . . . . . . . . . .. .. . . .. . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . Page 2 Response to Comments on Proposed SIP Revision.. .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Regulation Changes. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. .. . . .. .. . . . . .. . . .. .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Final Adoption of SIP Revision and Amendments to APC-S-5. . . . . . . . . . . .. . . . . . . . . . . . . . . Page 3 Administrative Procedures Requirements. . . .. .. . . . . .. . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . Page 3 ATTACHMENTS Letter fromMississippi DEQ to EPAdated May 24, 2007 . . . . .. . . . . . . . . . . . . . . . . .Attachment 1 Regulations in EPAFormat (Redline/Strikeout) . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . .Attachment 2 Amendments to Regulation APC-S-5 Proofs of Publication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Attachment 3 Notice ofPublic Hearing

I IOa2di SIP TSD Final August 23, 2007 State ofMississippi C . SimmonsFinal Adoption Evidence. . .. . . .. .. .. . . . . . . . . .. . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Attachment 4

Memo Regarding Agenda for Commission Meeting Minutes of Commission Meeting Administrative Procedures Documentation. . . . .. . . .. . . . . . . . . . . .. .. . . . . .. . . ., . . . . .. . , ., .Attachment 5 Commission Order no. 5295-07 Secretary of State Filing

I IOa2di SIP 'rSD Final August 23, 2007 State of Mississippi C . Simmons

### DISCUSSION:

This SIP revision and amendments to the State of Mississippi's "Regulations for the Prevention of Significant Deterioration ofAir Quality",APC-S-5is to meet the requirements of Section 110(a)(2)(D)(i) of the Federal Clean Air Act addressing interstate air pollution transport for the 1997 8-hour ozone and PM2 .5 National Ambient Air Quality Standards (NAAQS) as it pertains to prevention ofsignificant deterioration of air quality andvisibility. U .S. Environmental Protection Agency (EPA) issued SIP guidance on August 11, 2006 detailing four prongs that a state must address to satisfy Section 110(a)(2)(D)(i) SIP requirements. Mississippi is subject to the Clean Air Interstate Rule and has submitted the required CAIR SIP thereby complying with Prongs 1 and 2 according to EPA . Prong 3 requires that a state SIPcontain adequate provisions prohibiting anyair pollution sources or other type ofemissions activity within the state fromemitting any air pollutants in amounts which will interfere with measures required to meet an implementation plan for any other state related to Prevention of Significant Deterioration . Mississippi is in attainment with all NAAQS so only the PSD requirements ofProng 3 are being addressed in this SIP Revision. Mississippi confirms that the major sources in the state are subject to a Prevention of Significant Deterioration of Air Quality permitting program that applies to the 8-hour ground-level ozone standard. Mississippi does consider volatile organic compounds (VOC) and nitrogen oxides (NOX) to be precursors of ground-level ozone. Mississippi also confirms that major sources in the state are subject to PSD permitting program

implemented in accordance with EPA's interim guidance ofusing PMIo as a surrogatefor PM2,5 . Mississippi has been following EPA's guidance on using PM Io as a surrogate for PM2

.5. This SIP revision includes amendments to Mississippi's "Regulations for the Prevention of Significant Deterioration", APC-S-5 which will adopt, by reference, federal PSDregulations promulgated in 40CFR51 .166 and 40 CFR52.21 byJune 15, 2007. The amendments toAPC-S-5will update state PSDregulations to be consistent with federal PSD regulations. Prong 4 requires that a state SIP contain adequate provisions prohibiting any air pollution sources or other type of emissions activity within the state from emitting anyair pollutants in amounts which will interfere with measures required to meet an implementation plan forany other state related to Regional Haze and Visibility. Mississippi can not assess whether there is interference with measures designed to protect visibility in any applicable SIP for any other state until regional haze SIPS are finalized. Mississippi is actively working towards regional haze SIP development and is planning to submit a regional haze SIP by December 17, 2007. Attachment 1 includes Mississippi Department ofEnvironmental Quality's (MDEQ letter to EPA dated May 24, 2007, responding to the requirements of Section 110(a)(2)(D)(i) .

I IOa2di SIPTSDFinal August 23, 2007 State of Mississippi C . Simmons

### PURPOSE OF THE REVISION:

Thepurposeofthe SIP revision is to meet the requirements of Section 110(a)(2)(D)(i) ofthe Federal Clean Air Act addressing interstate air pollution transport for the 1997 8-hour and PMZ.5 National Ambient Air Quality Standards (NAAQS) as it pertains to prevention of significant deterioration of air quality and visibility. 

### SOURCES AFFECTED B Y THE REVISION

: This SIP revision potentiallyaffects all sources and practices subjectto air pollutioncontrol regulations in Mississippi . POLLUTANTS INVOLVED : The pollutants affected by this SIP Revision are all pollutants subject to regulation. CHANGES INALLOWABLE EMISSIONS: 

### This SIP Revision does not include any provisions for emission limitation changes. LOCATION/ATTAINMENT STATUS: All areas ofthe state are designated attainment for all NAAQS. The SIP Revision does not change any requirements for sources locating in or impacting . non-attainment areas. PART DSIP/ATTAINMENT DEMONSTRATION IMPACT: This is not applicable. 

### 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 TOBE EMPLOYED: Compliance with the amended regulations will be achieved by air emission permits. PUBLIC HEARING

: Public participation on the SIP Revision was achieved by a public hearing held on Tuesday, July 17, 2007, in the Air Division Training/Meeting Room(Room 3-660) at the Mississippi Department ofEnvironmental Quality, Office ofPollution Control, Air Division, 101 Capitol 110a2di SIPTSDFinal August 23, 2007 State of Mississippi C . Simmons