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 .. 

T Dg, U 4 g9 

SV M+" 

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 IV 

MISSISSIPPI 

DEPARTMENT OF ENVIRONMENTAL QUALITY 

OFFICE OF POLLUTION CONTROL 

STATE IMPLEMENTATION PLAN (SIP) 

REVISION 

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 

INCLUDING AMENDMENTS TO 

"REGULATIONS FOR THE PREVENTION OF SIGNIFICANT DETERIORATION OF 

AIR QUALITY" 

APC-S-5 

Adopted August 23, 2007 
TABLE OF CONTENTS 

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

1 .43 Notification of Public 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 of Significant Deterioration of Air 

Quality", APC-S-5 

I le(a)(2)(D)(i) Final SIP August 23, 2007 

State of Mississippi 

C. Simmons 
1 .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. 

The purpose of the SIP revision is 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 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 of Air 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 of air quality and visibility. 

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 any air pollution sources or 

other type of emissions activity within the state from emitting 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 

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 (NO,,) 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 of using PM Io 

as a surrogate for PM2.5 . Mississippi has been following EPA's guidance on using PMIo 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 PSD regulations promulgated in 40 CFR 51 .166 and 40 CFR 52.21 by June 15, 2007. 

The amendments to APC-S-5 will update state PSD regulations 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 any air 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 

I I O(a)(2)(D)(i) Final SIP August 23, 2007 

State of Mississippi 

C . Simmons 
submit a regional haze SIP by December 17, 2007. 

Appendix G-11 includes the Mississippi Department of Environmental Quality's (MDEQ) 

letter to EPA dated May 24, 2007, responding to the requirements of Section 110(a)(2)(D)(i). 

110(a)(2)(D)(i) Final SIP August 23, 2007 

State of Mississippi 

C . Simmons 
1 .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 hearing held on Tuesday, 

July 17, 2007, in the Air Division Training/Meeting Room (Room 3-660) at the Mississippi 

Department of Environmental Quality, Office of Pollution Control, Air Division, 101 Capitol 

Centre, 101 West Capitol St., Jackson, Mississippi 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 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 of public hearing and the proposed SIP revision was made available for 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 SIP August 23, 2007 

State of 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 for Air Pollution Control 

(SIP Revision) and amendments to state air pollution control regulation entitled "Regulations for the 

Prevention of Significant Deterioration of Air 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 of Significant Deterioration 

of Air Quality", APC-S-5 to adopt, by reference, federal regulations as promulgated 

in 40 CFR Parts 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, 

MDEQ can not assess whether there is any interference with measures designed to 

protect visibility in any applicable SIP for any other state until regional haze SIPs are 

finalized. MDEQ is actively working towards regional haze SIP development and is 

planning to submit a regional haze SIP Revision by December 17, 2007. 

I . Manner By Which the Public May Comment. 

Copies of the proposed amendments to the referenced regulations may be obtained by calling 

Ms. Maya Rao at 601-961-5242 or Mr. Connie Simmons at 601-961-5165 or writing to Mississippi 

Department of Environmental Quality, Air Division, 101 West Capitol Street, Jackson, Mississippi 

39201 . For those 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 of Gulfport, Jackson, and Tupelo in the 

State of Mississippi . The proposed SIP Revision and amendments to the referenced regulations may 

also be reviewed in the offices of the Mississippi Department of Environmental Quality, Southport 

Center, 2380 Highway 80 West, 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. Simmons 
Members 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. 

A public hearing regarding the proposed SIP Revision and regulation amendments will be 

conducted. The hearing will be held on Tuesday, July 17, 2007, at 10 :00 a.m. in the Air Division 

Training/Meeting Room (Room 3-660) 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 Mississippi Air 

& 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 

implement this SIP revision . The State act (as of July l, 2004) Mississippi Code Annotated, 

Section 49-17-13(3) designates the Commission as the State air 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 SIP August 23, 2007 

State of Mississippi 

C. Simmons 
5.18 Control Strateay for the SIP Revision 

This SIP revision includes amendments to air pollution control regulations which are control 

regulations and control strategies . Therefore, no additional control strategies are needed. 

110(a)(2)(Dxi) Final SIP August 23, 2007 

State of Mississippi 

C. Simmons 
6.22 Control Regulations for the SIP Revision 

Amendments to state regulations are included in Appendix G-10 of this SIP revision . 

I 10(a)(2)(D)(i) Final SIP August 23, 2007 

State of 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 . 

I 10(a)(2)(D)(i) Final SIP August 23, 2007 

State of Missiseippi 

C. Simmons 
14.3 .17 Economics Effects of the SIP Revision 

No adverse economic effects due to this SIP revision are foreseen . 

I ]0(a)(2)(D)(i) Final SIP August 23, 2007 

State of Mississippi 

C . Simmons 
14.5 .17 Social Effects of the SIP Revision 

No adverse social effects are foreseen as a result of this SIP revision . 

I 10(a)(2)(D)(i) Final SIP August 23, 2007 

State of 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 

State of Mississippi 

C . Simmons 
MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY 

OFFICE OF POLLUTION CONTROL 

STATE IMPLEMENTATION PLAN REVISION 

APPENDIX G-10 

AMENDMENTS TO 

"REGULATIONS FOR THE PREVENTION OF SIGNIFICANT 

DETERIORATION OF AIR QUALITY" 

APC-S-5 

1 ]0(ax2)(D)(i) Final SIP August 23, 2007 

State of Mississippi 

C. Simmons 
"Regulations for the Prevention of Significant Deterioration of Air Quality", APC-S-5 are amended 

as follows this page: 

l ]0(a)(2)(DXi) Final SIP August 23, 2007 

State of Mississippi 

C. Simmons 
MISSISSIPPI COMMISSION ON ENVIRONMENTAL QUALITY 

"REGULATIONS FOR THE PREVENTION OF SIGNIFICANT DETERIORATION OF 

AIR QUALITY" 

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 FOR THE PREVENTION OF SIGNIFICANT DETERIORATION 

OF AIR QUALITY 

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 CFR 51 .166 . This regulation supercedes and 

replaces the previous adoption by reference of 40 CFR 52.21 and 40 CFR 51 .166. 

40 CFR 52.21 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. CFR refers to 

the "Code of Federal Regulations." 

2. Other than the subsections and phrases listed below and except for the changes set forth in 

Section 3 . of this regulation, the provisions of 40 CFR 52.21 as amended and promulgated by 

June 15, 2007, are incorporated herein and adopted by reference by the Mississippi 

Commission on Environmental Quality as official regulations of the State of Mississippi and 

shall hereafter be enforceable as such. The following subsection and phrases of 40 CFR 

52.21 are excluded from this 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], and 
2.9 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 CFR 52 .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 provide that .") 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 

from paragraph 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 USEPA a copy of each permit application filed under 

this regulation and shall notify the Administrator of the USEPA of each 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 TO THE 

SIP REVISION 

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 

INCLUDING AMENDMENTS TO 

"REGULATIONS FOR THE PREVENTION OF SIGNIFICANT DETERIORATION OF 

AIR QUALITY" 

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 D SIP/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 from Mississippi DEQ to EPA dated May 24, 2007 . . . . . . . . . . . . . . . . . . . . . . . Attachment 1 

Regulations in EPA Format (Redline/Strikeout). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Attachment 2 

Amendments to Regulation APC-S-5 

Proofs of Publication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Attachment 3 

Notice of Public Hearing 

I I Oa2di SIP TSD Final August 23, 2007 

State of Mississippi 

C. Simmons 
Final 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 I Oa2di 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 of Air Quality", APC-S-5 is 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 of significant deterioration of air quality and visibility. 

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 any air pollution sources or 

other type of emissions activity within the state from emitting 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 

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 of using PMIo 

as a surrogate for 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 PSD regulations promulgated in 40 CFR 51 .166 and 40 CFR 52.21 by June 15, 2007. 

The amendments to APC-S-5 will update state PSD regulations 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 any air 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 

submit a regional haze SIP by December 17, 2007. 

Attachment 1 includes Mississippi Department of Environmental Quality's (MDEQ letter to 

EPA dated May 24, 2007, responding to the requirements of Section 110(a)(2)(D)(i) . 

I I Oa2di SIP TSD Final August 23, 2007 

State of Mississippi 

C. Simmons 
PURPOSE OF THE REVISION : 

The purpose of the SIP revision is 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 and 

PMZ.5 National Ambient Air Quality Standards (NAAQS) as it pertains to prevention of 

significant deterioration of air quality and visibility. 

SOURCES AFFECTED BY THE REVISION: 

This SIP revision potentially affects all sources and practices subject to air pollution control 

regulations in Mississippi. 

POLLUTANTS INVOLVED: 

The pollutants affected by this SIP Revision are all pollutants subject to regulation. 

CHANGES IN ALLOWABLE EMISSIONS: 

This SIP Revision does not include any provisions for emission limitation changes. 

LOCATION/ATTAINMENT STATUS: 

All areas of the 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 D SIP/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 TO BE 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 of Environmental Quality, Office of Pollution Control, Air Division, 101 Capitol 

110a2di SIP TSD Final August 23, 2007 

State of Mississippi 

C. Simmons