**MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY**  **OFFICE OF POLLUTION CONTROL**
**STATE IMPLEMENTATION PLAN (SIP) REVISION**  **FOR PURPOSES OF THE**  **EMISSION S**  **STATEMENT AND EMISSION**  **S INVENTORY**  **FOR THE OZONE NONATTAINMENT AREA OF DESOTO COUNTY, MISSISSIPPI** 

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

Adopted November 20, 2014 2 **TABLE OF CONTENTS** 1. 5 7 Introduction: State Implementation Plan (SIP) Revision for Purposes of the

Emission s Statement and Emission s Inventory for the Ozone Nonattainment Area of DeSoto County , Mississippi 1. 5 8 Notification of Public Hearing for the SIP Revision 3.2 6 Legal Authority for the SIP Revision 5.2 4 Control Strategy for the SIP Revision 6.28 Control Regulations for the SIP Revision 14.1. 2 3 Health Effects of the SIP Revision 14.3.2 3 Economic Effects of the SIP Revision 14.5.23 Social Effects of the SIP Revision 14.6.23 Air Quality Effects of the SIP Revision Appendix U Regulations for Ambient Air Quality Nonattainment Areas

Mississippi A dministrative Code, Part 2, Chapter 11 Appendix V Emission s Inventory for DeSoto County , MississippiMississippi NAA SIP, Final

Adopted November 20, 2014 3 1. 5 7 Introduction: State Implementation Plan (SIP) Revision for Purposes of the Emission s Statement and Emission s Inventory for the Ozone Nonattainment Area of DeSoto County, Mississippi
. 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 Emission s Statement and an Emission s Inventory for the Ozone Nonattainment Area of DeSoto County, Mississippi. Section 182(a)(3)(B) of the CAA requires Marginal and above areas to submit an emissions statement within 2 years of designation as nonattainment
. Specificall y it provides that the emission s 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 the 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 Amendment s of 1990. Subsequent statements shall be submitted at least every year thereafter. ” Appendix U contains new state regulation s 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, Part 2, Chapter 11, Regulations for Ambient Air Quality Nonattainment Areas
. The regulation s are applicable to sources in DeSoto County, M ississippi 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 emission s inventory f or the nonattainment area 2 ye ars after designation as nonattainm ent. The emissions are reported as tons/average summer day of 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 Regio nal Haze Regulations, November 2005 , the onl y pollutants 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 Emissi on Inventory for DeSoto County, M ississippi
.Mississippi NAA SIP, Final

Adopted November 20, 2014 4 1. 5 8 Notification of Public Comment Period for the SIP Revision
. Public participation for the above referenced SIP Revision was achieved by a 30
- day public comment period and with a public hearing held on October 2, 2014 in the c ity o f Jackson, Mississippi. The comment period beg an on September 2, 2014 and end ed on October 2, 2014
. The public notice was published consistent with procedures approved by EPA. The notice of public comment period was published on September 2, September 9, and September 16, 2014 in daily newspapers in the cities of Gulfport, Hernando, Jackson, and Tupelo in the State of Mississippi. The notice of public hearing, and the draft SIP Revision was made available for public review in the main branches of the public libraries in Gulfport, Hernando, and Tupelo, Mississippi and at the Mississippi Department of Environmental Quality in J ackson, Mississippi and was also available on the Department’s website http://www.deq.state.ms.us. The public notice follow s this page.Mississippi NAA SIP, Final

Adopted November 20, 2014 5

MI SSI SSIPPICOMMISSION ON ENVIRONMENTAL QUALITY

NOTICE OF PUBLIC HEARING PUBLIC NOTICE START DATE: SEPTEMBER 2, 2014 DEADLINE FOR COMMENTS: OCTOBER 2, 2014 PLEASE TAKE NOTE that the Mississippi Commission on Environmental Quality (“Commission”) is considering adopting a State Implementation Plan Revision for Purposes of an Emissions Inventory

f or the Ozone Nonattainment Area of DeSoto County, Mississippi and adopting new air pollution control regulations for areas in Miss issippi designated as Nonattainment for Federal National Ambient Air Quality Standards (NAAQS). The new proposed regulations will be entitled 11 Mississippi Administrative Code, Part 2, Chapter 11, “Regulations for Ambient Air Quality Nonattainment Areas” and will be applicable statewide. I. Substance of the proposed action: On July 2 2, 2012, the United States Environmental Protection Agency (EPA) designated a portion of DeSoto County, Mississippi to be included as a part of the Memphis, Tennessee

– Mis sissippi

– Arkansas (TN
- MS
- AR) Marginal Ozone Nonattainment Area. Therefore, the Mississippi Department of Environmental Quality (MDEQ) is required by the Clean Air Act (CAA) to implement requirements for certain air emission sources in Nonattainment Area s to submit an Emissions Statement annuall y. The Department is also required to submit an Emissions Inventory

o f sources in the nonattainment portion of DeSoto County, Mississippi. Section 182(a)(3)(B) of the (CAA) requires that within two (2) years of enactment of the CAA Amendments of 1990, states submit to EPA a SIP submittal requiring sources in their marginal and above ozone nonattainment areas to submit annual emissions statements. C AA section 182(a)(1) requires that marginal and above ozone nonattainment areas submit a base ye ar emission inventory

o f ozone precursors for the nonattainment area two(2) ye ars after designation. The Department is proposing to adopt a State Implementation Plan Revision (SIP Revision) which includes adoption of new air pollution control regulations specifically f or the purposes of implementing federal requirements for areas designated as nonattainment for National Ambient Air Quality Standards (NAAQS). The proposed new air pollution control regulations are entitled 11 Mississippi Administrative Code, Part 2, Chapter 11, “Regulations for Ambient Air Quality Nonattainment Areas”. The regulations will be applicable to sources in DeSoto County, Mississippi as well as any other areas in Mississippi that may be designated nonattainment for air quality in the future. The proposed SIP Revision also includes the required emissions inventory for DeSoto County , Mississippi. II. Manner By

Which the Public May

Comment. Copies of the proposed SIP Revision and proposed regulations may b e obtained by

c alling Mr. Keith Head at 601
- 961
- 5577 or writing to Mississippi Department of Environmental Quality , Air Division, P.O. Box 2261, Jackson, Mississippi 39201. F or persons with internet access, the proposed SIP Revision and proposed regulations may be found on the Mississippi Department of Environmental Quality’s website at http://www.deq.state.ms.us under Programs/Air Quality/ New In formation. Also, the proposed SIP Revision and proposed regulations will be available for public review through October 2, 2014, in the main branch of the public library in Gulfport, Hernando, and Tupelo, Mississippi. The proposed SIP Revision and proposed regulations may also be reviewed in the off ices of the Mississippi Department of Environmental Quality, 515 E. Amite Street, Jackson, Mississippi. P lease contact Mr. Lorenzo Boddie at (601) 961
- 5171 to schedule an appointment.Mississippi NAA SIP, Final

Adopted November 20, 2014 6 Members of the public may p resent verbal or written comments at the public hearing described below. Also, written statements regarding the proposed SIP Revision and/or proposed regulations will be made part of the public hearing record if delivered by 5 :00 p.m., October 2, 2014, to the attention of Ms. Maya Rao at the address shown above. III. Notice of Public Hearing. A public hearing to receive comments regarding the proposed SIP Revision and proposed regulations will be held on October 2, 2014, at 10:30 a.m., in Room 104A at the offices of the Mississippi Department o f Environmental Quality, 515 E. Amite St., Jackson, Mississippi 39201. IV
. Additional Information. For additional information, please contact Mr. Keith Head at 601
- 961
- 5577.Mississippi NAA SIP, Final

Adopted November 20, 2014 7 3.2 6 Legal Authority for the SIP Revision No legislative actions are needed co ncerning 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

l egal authority

to adopt and implement this SIP revi sion. The State act (as of July 1 , 201 1 ) Mississippi Code Annotated, Section s 49
- 17
- 13(3) and 49
- 17
- 17(h) & (i) designates the Commission as the State air pollution control agency f or all purposes of the federal pollution control legislation and programs and take all actions necessary thereto. The state air pollution control law as of July

1 , 2011, is included in Appendix A
- 9 of th e Mississippi State Implementation Plan
.Mississippi NAA SIP, Final

Adopted November 20, 2014 8 5. 2 4 Control Strategy

for the SIP Revision No control strategy

is required for this SIP Revision
.Mississippi NAA SIP, Final

Adopted November 20, 2014 9 6.2 8 Control Regulations for the SIP Revision New state air pollution control regulations will implement the Emissions Statement requirement for any areas designated as nonattainment for the National Air Quality Standard (NAAQS) for ground
- level ozone. The new regulation s are 11 Mississippi Administrative Code, Part 2, Chapter 11, Regulations for Ambient Air Quality Nonattainment 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. The regulations were adopted by the Mississippi Commission on Environmental Quality o n November 20, 2014 and became state effective on December 22, 2014. The regulations are included in Appendix U of this SIP Revision.Mississippi NAA SIP, Final

Adopted November 20, 2014 10 14.1. 2 3 Health Effects of the SIP Revision

No adverse health effects are expected to be caused by this SIP revision.Mississippi NAA SIP, Final

Adopted November 20, 2014 11 14.3. 2 3 Economics Effects of the SIP Revision

No adverse economic effects due to this SIP revision are foreseen.Mississippi NAA SIP, Final

Adopted November 20, 2014 12 14.5. 2 3 Social Effects of the SIP Revision

No adverse social effects are foreseen as a result of this SIP revision.Mississippi NAA SIP, Final

Adopted November 20, 2014 13 14.6. 2 3 Air Quality Effects of the SIP Revision This SIP revision will not have any adverse air quality effects.Mississippi NAA SIP, Final

Adopted November 20, 2014 14

**MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALI TY** 

**OFFICE OF POLLUTION CONTROL**

**STATE IMPLEMENTATION PLAN REVISION FOR PURPOSES OF THE**  **EMISSIONS STATEMENT AND EMISSION S**  **INVENTORY FOR THE OZONE NONATTAINMENT AREA OF DESOTO COUNTY, MISSISSIPPI** 

**APPENDIX U**  **REGULATIONS FOR AMBI ENT AIR QUALITY**  **NONATTAINMENT AREAS** 

**11 Mississippi Administrative Code, Part 2, Chapter 11**

**Adopted November 20, 2014 Effective December 22, 2014** Mississippi NAA SIP, Final

Adopted November 20, 2014 15

**MISSISSIPPI COMMISSION ON ENVIRONMENTAL QUALITY**  **REGULATIONS FOR AMBIENT AIR QUALITY NONATTAINMENT**  **AREAS**

**11 Mississippi Administrative Code, Part 2, Chapter 11**

**Adopted November 20, 2014**Mississippi NAA SIP, Final

Adopted November 20, 2014 16 **Title 11: Mississippi Department of Environmental Quality Part**  **2: Air Regulations Part 2, Chapter 11:**  **Mississippi Commission on Environmental Quality, Regulations**  **f or**  **Am bient Air Quality**  **Nonattainment Areas**  **(Adopted November 20, 2014) TABLE OF CONTENTS**  **Rule 11.1 General ................................**  **................................ ................................**  **................. Page 1**  **Rule 11.2 Definitions ................................**  **................................ ................................**  **............ Page 1**  **Rule 11.3 Emissions Statement ................................**  **................................ ...........................**  **Page 2 Title 11: Mississippi Department of Environmental Quality**  **Part 2: Air Regulations Part**  **2, Chapter**  **11: M** **ississippi Commission**  **on Environmental**  **Quality, Regulations**  **for Am** **bient Air Quality Nonattainment**  **Areas Rule**  **11.1 General.**  The purpose of this regulation is to implement Section 182(a)(3)(B) of the Federal Clean Air Act which set s requirements for areas designated as nonattainment for National Ambient Air Quality Standards. Source: Miss. Code Ann. §§ 49
- 2
- 9(1)(b), 49
- 17
- 17, 49
- 2
- 1, et seq. and 49
- 17
- 1, et seq. **Rule 11.2**  **Definitions .**  The terms used in the regulations shall, unless the context otherwise requires, have the following meanings: A. **“** Commission” means the Mississippi Commission on Environmental Quality
. B. “Department” means the Mississippi Department of Environmental Quality (Department). C. “NAAQS” means National Ambient Air Quality Standards promulgate d by the U.S. Environmental Protection Agency
. D. “Nonattainment area” means any area, designated by the U.S. Environmental Protection Agency, that does not meet (or that contributes to ambient air quality in a nearb y area that does not meet) the national primary o r secondary

n ational ambient air quality

standard(s). E. “Emissions Statement” means the annual emissions statement as required by R ule 11.3 of this regulation.Mississippi NAA SIP, Final

Adopted November 20, 2014 17 Source: Miss. Code Ann. §§ 49
- 2
- 9(1)(b), 49
- 17
- 17, 49
- 2
- 1, et seq. and 49
- 17
- 1, et seq. **Rule 11.3 Emissions Statement.** A. The requirements of Rule 11 .3.A
- C of this regulation shall apply to all stationary sources of nitrogen oxides or volatile organic compounds which have the potential to emit more than 100 tons per calendar ye ar of either pollutant and are located in area(s) designated by

the U.S. Environmental Protection Agency as nonattainment for the 2008 ozone NAAQS. B. Owners and operators of stationary s ources of nitrogen oxides or volatile organic compounds shall provide the Department with a statement, in such form as the Department may

prescribe , for classes or categories of sources determined by the Department, showing the actual emissions of nitrogen oxides and volatile organic compounds from that source. C. The Emissions Statement shall be submitted to the Department by July 1 o f every ye ar and shall show the actual emissions of the previous calendar year. Source: Miss. Code Ann. §§ 49
- 2
- 9(1)(b), 49
- 17
- 17, 49
- 2
- 1, et seq. and 49
- 17
- 1, et seq.Mississippi NAA SIP, Final

Adopted November 20, 2014 18

**MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY**

**OFFICE OF POLLUTION CONTROL**

**STATE IMPLEMENTATION PLAN REVISION FOR**  **PURPOSES OF THE EMISSIONS STATEMENT AND EMISSION**  **S INVENTORY FOR THE**  **OZONE NONATTAINMENT AREA OF DESOTO COUNTY, MISSISSIPPI**

**APPENDIX V**  **EMISSION S**  **INVENTORY FOR THE OZONE NONATTAINM** **ENT AREA OF**

**DESOTO COUNTY, MISSISSIPI** Mississippi NAA SIP, Final

Adopted November 20, 2014 19 **Appendix V Emission**  **s Inventory for**  **DeSoto County, M ississippi** Mississippi NAA SIP, Final

Adopted November 20, 2014 20 **INTRODUCTION** The following contains emission summary tables for DeSoto County, MS, which is part of the Memphis Ozone Nonattainment Area. The inventory data is for calendar year. **BASELINE YEAR (2011) INVENTORIES** The emissions are reported as tons/average summer day of 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 pollutants rep orted are Nitrogen Oxides (NOx) and Volatile Organic Compounds (VOC) and emissions are summed as tons/average summer day for the year 2011. Table 1: 2011 Average Summer Day Emissions for DeSoto County , MS Sector 2011 Summer Day

NO X Emissions (tons/day) 2 011 Summer Day

VOC Emissions (tons/day) Point 1.533 0.817 Nonpoint (excluding Biogenic) 1.267 7.062 Nonroad Mobile 2.054 1.658 Onroad Mobile 8.969 5.178 **TOTAL 13.847**  **14.734** Table 2: 2011 Average Summer Day Biogenic Emissions for DeSoto County, MS Location 2011 Summer Day

NO X Emissions (tons/day) 2011 Summer Day

VOC Emissions (tons/day) **Total 0.574**  **25.280**Mississippi NAA SIP, Final

Adopted November 20, 2014 21 **2011 POINT SOURCE INVENTORY** The development of the point source inventory by the Department began with the collection of actual 2011 process data and emission estimates from all Title V stationary sources that are required to submit inventory data according to the Air Emissions Reporting Rule (AERR). Each 2011 inventory

received was reviewed by the Department’s staff to ensure that correct procedures were followed and appropriate emission factors, such as stack testing or AP
- 42 emission factors, were used in developing the inventory . The Department submitted the 2011 point data to the EPA as part of the 2011 NEI effort. Th e EPA did make some amendments to the Department’s data, but primarily to “gap fill” pollutants or sources not provided by agencies. To estimate the average summer day emissions for industrial point sources, the MDEQ used monthly throughput percentages provided b y the facilities. The airport point source inventory was developed from data provided b y the EPA. It was assumed that these sources operated at a constant rate throughout all months of the year (8.333% activity for each month). If each month of the year contributed 8.333% of the activity, the percent of activity for the 5 ozone season months would be 41.66%. Since there are 153 days in the 2011 ozone season, the 41.66% can be divided by

153 to get an estimate of activity for an average ozone seas on day . This gives a result of 0.272% activity for each day . The estimated ratio of 0.00272 was multiplied by the annual emissions to estimate the average summer day emissions. The data was reviewed b y the Department’s staff and updated as necessary
. T able 3: 2011 Average Summer Day Point Source NO X Emissions for DeSoto County, MS **SOURCE EMISSIONS**  **(tons/day) Davis Field**  **0.00000870** Aircraft /General Aviation /Piston 0.00000870 **Delta Flying Service Inc 0.00001345**  Aircraft /General Aviation /Piston 0.00001345 **Double O Ranch 0.00000870**  Aircraft /General Aviation /Piston 0.00000870 **Eagles Ridge 0.00000929**  Aircraft /General Aviation /Piston 0.00000929 **Guardian Fiberglass Inc 0.00747945**  Mineral Wool /Curing Oven 0.00227397 Mineral Wool /Other Not Classified 0.00446575 Misc Manuf / Indus Processes /Other Not Classified 0.00073973 **Hernando Village Airpark, Inc 0.00027454**  Aircraft /General Aviation /Piston 0.00009369 Aircraft /General Aviation /Turbine 0.00018084 **J T Shannon Lumber Company**  **0.03726027** Ext Comb /Industrial /Wood
- fired Boiler (< 50,000 L b Steam) 0.03665753Mississippi NAA SIP, Final

Adopted November 20, 2014 22 ** Pulp&Paper&Wood /Fugitive Emissions 0.00060274 **Olive Branch Airport 0.00815270**  Aircraft /Air Taxi /Piston 0.00011311 Aircraft /Air Taxi /Turbine 0.00198767 Aircraft /Commercial Aircraft /Total: All Ty pes 0.00003817 Aircraft /General Aviation /Piston 0.00202440 Aircraft /General Aviation /Turbine 0.00390753 Aircraft /Military

Aircraft /Total 0.00008181 **Rexam Beverage Can Company Inc 0.01471233**  Ext Comb /Industrial /Natural Gas /< 10 Million Btu/hr 0.00178082 Metal Can Coating /Interior Spray Coating 0.00561644 Surface Coating Oven
- General /Baked : 175F ** 0.00336986 Surface Coating Oven
- General /Dried < 175F ** 0.00394521 **Rite Hite Products**  **0.00019178** Surface Coating Oven
- General /General 0.00019178 **Texas Gas Transmission LLC, Lake Cormorant Compressor Station**  **1.01731507** Ext Comb /Space Heater /Industrial /Natural Gas 0.00000000 Int Comb /Industrial /Natural Gas /2
- cycle Lean Burn 0.21131507 Int Comb /Industrial /Natural Gas /4
- cycle Rich Burn 0.23728767 Int Comb /Industrial /Natural Gas /Reciprocating 0.00054795 Int Comb /Industrial /Natural Gas /Turbine 0.56690411 Petrol Indus /Process Heaters /Natural Gas
- fired 0.00126027 **TVA Southaven Combined Cycle Plant 0.44786904**  Ext Comb /Electric Gen /Natural Gas /Boilers < 100 Million Btu/hr 0.00010959 Int Comb /Electric Gen /Distillate Oil (Diesel) /Reciprocating 0.00010959 Int Comb /Electric Gen /Natural Gas /Reciprocating 0.00136986 Int Comb /Electric Gen /Natural Gas /Turbine 0.44628000 **Vaiden Landing 0.00000870**  Aircraft /General Aviation /Piston 0.00000870 **Grand Total 1.53330402** Mississippi NAA SIP, Final

Adopted November 20, 2014 23 Table 4: 2011 Average Summer Day Point Source VOC Emissions for DeSoto County, MS **SOURCE EMISSIONS**  **(tons/day) Davis Field**  **0.00002013** Aircraft /General Aviation /Piston 0.00002013 **Delta Flying Service Inc 0.00003113**  Aircraft /General Aviation /Piston 0.00003113 **Double O Ranch 0.00002013**  Aircraft /General Aviation /Piston 0.00002013 **Eagles Ridge 0.00002151**  Aircraft /General Aviation /Piston 0.00002151 **Guardian Fiberglass Inc 0.08134247**  Mineral Wool /Curing Oven 0.00863014 Mineral Wool /Other Not Classified 0.07268493 Misc Manuf / Indus Processes /Other Not Classified 0.00002740 **Hernando Village Airpark, Inc 0.00060204**  Aircraft /General Aviation /Piston 0.00021689 Aircraft /General Aviation /Turbine 0.00038515 **J T Shannon Lumber Company 0.03947945**  Ext Comb /Industrial /Wood
- fired Boiler (< 50,000 L b Steam) ** 0.00564384 Ply wood Operations /Veneer Dryer: Steam Heated: Redry 0.03260274 Pulp&Paper&Wood /Fugitive Emissions 0.00123288 Wood Furniture Surface Coating /Coating Operation 0.00000000 **Olive Branch Airport 0.01645603**  Aircraft /Air Taxi /Piston 0.00012147 Aircraft /Air Taxi /Turbine 0.00257863 Aircraft /Commercial Aircraft /Total: All Ty pes 0.00001267 Aircraft /General Aviation /Piston 0.00468647 Aircraft /General Aviation /Turbine 0.00832197 Aircraft /Military

Aircraft /Total 0.00073482 **Rexam Beverage Can Company Inc 0.52282192**  Ext Comb /Industrial /Natural Gas /< 10 Million Btu/hr 0.00010959 Metal Can Coating /Interior Spray Coating 0.09671233 Metal Can Coating /Two
-piece Can Coating Line 0.02983562 Surface Coating Oven
- General /Baked : 175F ** 0.23490411 Surface Coating Oven
- General /Dried < 175F ** 0.16126027Mississippi NAA SIP, Final

Adopted November 20, 2014 24 **Rite Hite Products 0.06967123**  Surface Coating /Misc Metal Parts /Coating Operation 0.06967123 Surface Coating Oven
- General /General 0.00000000 **Texas Gas Transmission LLC, Lake Cormorant Compressor Station**  **0.05063014** Ext Comb /Space Heater /Industrial /Natural Gas 0.00000000 Int Comb /Industrial /Natural Gas /2
- cycle Lean Burn 0.02775342 Int Comb /Industrial /Natural Gas /4
- cycle Rich Burn 0.00169863 Int Comb /Industrial /Natural Gas /Reciprocating 0.00016438 Int Comb /Industrial /Natural Gas /Turbine 0.01578082 Oil&Gas Field Stor&Workg Tanks /Fixed Roof Tank: Breathing Loss 0.00117808 Oi l&Gas Prod /Fugitive Emissions /Fugitive Emissions 0.00397260 Petrol Indus /Process Heaters /Natural Gas
- fired 0.00008219 **TVA Southaven Combined Cycle Plant 0.03553040**  Ext Comb /Electric Gen /Natural Gas /Boilers < 100 Million Btu/hr 0.00002740 Int Comb /Electric Gen /Distillate Oil (Diesel) /Reciprocating 0.00000000 Int Comb /Electric Gen /Natural Gas /Reciprocating 0.00024658 Int Comb /Electric Gen /Natural Gas /Turbine 0.03525643 **Vaiden Landing 0.00002013**  Aircraft /General Aviation /Piston 0.00002013 **Grand Total 0.81664672** Mississippi NAA SIP, Final

Adopted November 20, 2014 25 **2011 NONPOINT EMISSION INVENTORY** Nonpoint sources include emissions estimates from sources that are either too small or too numerous to be considered point sources which are calculated and recorded on the county
- level. Major categories for nonpoint sources include: Solvent use such as small surface coating operations, light industrial/commercial sources such as commercial bakeries, product storage and transport distribution such as gasoline, stationary source fuel combustion such as residential fuel combustion, waste management such as landfills, agriculture such as feedlots and crop burning, and miscellaneous area sources such as unpaved roads. Emissions from nonpoint sources are calculated using established emissions factors provided b y EPA. Activity

data adjustments are made to addre ss some issues when estimating emissions. These issues include coal data, nonroad mobile source consumption, non
- fuel use, and point source adjustment. These adjustments are made to prevent emissions from being double counted. Average summer day emissio ns were calculated by summing the monthly

emissions for the five summer months (May , June, July, August and September) and dividing the sum by the number of 2011 summer days (153 days). Table 5: 2011 Average Summer Day Nonpoint Source NO X Emissions for De Soto County, MS
**SOURCE EMISSIONS**  **(tons/day) Miscellaneous Area Sources**  **0.04905490 Agriculture Production**  **- Crops**  **- as nonpoint**  **0.04742749** Agricultural Field Burning
- whole field set on fire 0.04742749 **Other Combustion 0.00162741**  Cremation 0.00162741 **Mobile Sources 0.76162629**  **Marine Vessels, Commercial 0.23370515**  Diesel 0.23370515 **Railroad Equipment 0.52792114**  Diesel 0.52792114 **Stationary Source Fuel Combustion 0.33409513**  **Commercial/Institutional 0.12328876**  Distillate Oil 0.00772843 Kerosene 0.00002964 Natural Gas 0.11553069 Residual Oil 0.00000000 **Residential 0.21080637**  Distillate Oil 0.00000211 Kerosene 0.00021792 Liquified Petroleum Gas (LPG) 0.03218718 Natural Gas 0.17839916Mississippi NAA SIP, Final

Adopted November 20, 2014 26 **Waste Disposal, Treatment, and Recovery 0.12234563**  **Open Burning 0.12234563**  All Categories 0.09576861 Residential 0.02657702 **Grand Total 1.26712195** Mississippi NAA SIP, Final

Adopted November 20, 2014 27 Table 6: 2011 Average Summer Day Nonpoint Source VOC Emissions for DeSoto County , MS
**SOURCE EMISSIONS**  **(tons/day) Industrial Processes**  **0.01682328 Food and Kindred Products: SIC 20**  **0.01682328** Commercial Cooking
- Charbroiling 0.01370096 Commercial Cooking
- Frying 0.00312232 **Oil and Gas Exploration and Production 0.00000000**  **Miscellaneous Area Sources 0.08674551**  **Agriculture Production**  **- Crops**  **- as nonpoint**  **0.08673982** Agricultural Field Burning
- whole field set on fire 0.08673982 **Other Combustion 0.00000570**  Cremation 0.00000570 **Mobile Sources 0.03078418**  **Marine Vessels, Commercial 0.00534635**  Diesel 0.00534635 **Railroad Equipment**  **0.02543783** Diesel 0.02543783 **Solvent Utilization 3.67860931**  **Dry Cleaning 0.00856252**  All Processes 0.00856252 **Miscellaneous Non -**  **industrial: Commercial 0.41860053**  Cutback Asphalt 0.00594787 Emulsified Asphalt 0.10812257 Pesticide Application: Agricultural 0.30453010 **Miscellaneous Non -**  **industrial: Consumer and Commercial**  **1.84052970** All Adhesives and Sealants 0.12444850 All Automotive Aftermarket Products 0.29693025 All Coatings and Related Products 0.20741371 All FIFRA Related Products 0.38862940 All Household Products 0.39299596 All Personal Care Products 0.41482877 Miscellaneous Products (Not Otherwise Covered) 0.01528310 **Surface Coating 1.41091656**  Architectural Coatings 0.51089448 Auto Refinishing: SIC 7532 0.09743783 Factory Finished Wood: SIC 2426 thru 242 0.00982093 Industrial Maintenance Coatings 0.13168020 Machinery

and Equipment: SIC 35 0.00967028 Metal Cans: SIC 341 0.51953418 Miscellaneous Manufacturing 0.01589212Mississippi NAA SIP, Final

Adopted November 20, 2014 28 Motor Vehicles: SIC 371 0.04831651 Other Special Purpose Coatings 0.01397313 Traffic Markings 0.00047305 Wood Furniture: SIC 25 0.05322385 **Stationary Source Fuel Combustion 0.01798586**  **Commercial/Institutional 0.00635891**  Distillate Oil 0.00000421 Kerosene 0.00000051 Natural Gas 0.00635419 Residual Oil 0.00000000 **Residential 0.01162695**  Distillate Oil 0.00000008 Kerosene 0.00000847 Liquified Petroleum Gas (LPG) 0.00118014 Natural Gas 0.01043826 **Storage and Transport 2.96048240**  **Petroleum and Petroleum Product Storage 2.90592752**  Airports : Aviation Gasoline 0.08309806 Bulk Plants: All Evaporative Losses 0.01494301 Bulk Terminals: All Evaporative Losses 0.07063269 Commercial Portable Gas Cans 0.05656611 Diesel Service Stations 0.01724552 Gasoline Service Stations 2.08759070 Residential Portable Gas Cans 0.57585142 **Petroleum and Petroleum Product Transport 0.05455489**  Pipeline 0.04772428 Truck 0.00683060 **Waste Disposal, Treatment, and Recovery 0.27017927**  **Open Burning 0.26222945**  All Categories 0.22431280 Residential 0.03791665 **Wastewater Treatment 0.00794982**  Public Owned 0.00794982 **Grand Total 7.06160981** Mississippi NAA SIP, Final

Adopted November 20, 2014 29 **2011 NONROAD MOBILE SOURCE EMISSIONS** Non
- road sources are vehicles that normally operate off

- road/off
- highway and not on
- road/on
highway . Non
- road emissions source category include: agricultural equipment, construction and mining equipment, lawn and garden equipment, off
- road recreational equipment, and drilling rigs. The nonroad mobile emissions are derived from the 2011 National Emissions Inventory (NEI). Aircraft engine emissions occurring during landing & takeoff operations and the ground support equipment & auxiliary

power units (APU) associated with the aircraft are included in the point source category

at individual airports. In
- flight aircraft emissions, locomotive emissions outside of the rail yards, and commercial marine vessel emissions (both underway and port emissions) are included in the Non
- Point source category
. The NEI Onroad and Nonroad source categories contain mobile sources which are estimated by EPA for the 2011 NEI b y the MOVES2010b and NONROAD models, respectivel y. NONROAD model was run within the National Mobil e Inventory Model (NMIM). Locomotives and commercial marine vessels are estimated for the 2011 NEI b y the NONROAD model even though the emission sources are not included in the Non
- road source category
. Average summer day emissions were calculated by summing the monthly

emissions for the five summer months (May , June, July, August and September) and dividing the sum by the number of 2011 summer days (153 days). Table 7: 2011 Average Summer Day Nonroad Mobile Source NO X Emissions for DeSoto County, MS
**SOU RCE**  **EMISSIONS (tons/day)**  **Agricultural Equipment 0.30226753**  CNG 0.00001974 LPG 0.00000741 Off
- highway Vehicle Diesel 0.29943755 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00000835 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00279448 **Commercial Equipment**  **0.07627228** CNG 0.00189779 LPG 0.00678624 Off
- highway Vehicle Diesel 0.04515341 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00023142 Off
- highway Vehicle Gasoline, 4
- Stroke 0.02220342 **Construction and Mining Equipment 1.19317638**  CNG 0.00001114 LPG 0.00269760 Off
- highway Vehicle Diesel 1.18137270Mississippi NAA SIP, Final

Adopted November 20, 2014 30 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00066563 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00842932 **Diesel 0.03848557**  Pleasure Craft 0.03202211 Railroad Equipment 0.00646346 **Gasoline 2 -**  **Stroke 0.04666039**  Pleasure Craft 0.04666039 **Gasoline 4 -**  **Stroke 0.03383171**  Pleasure Craft 0.03383171 **Gasoline, 4 -**  **Stroke 0.00010834**  Railroad Equipment 0.00010834 **Industrial Equipment 0.20962257**  CNG 0.00650724 LPG 0.09332167 Off
- highway Vehicle Diesel 0.10574633 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00000190 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00404544 **Lawn and Garden Equipment 0.14839911**  LPG 0.00096174 Off
- highway Vehicle Diesel 0.04699066 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00623248 Off
- highway Vehicle Gasoline, 4
- Stroke 0.09421423 **Logging Equipment 0.00091504**  Off
- highway Vehicle Diesel 0.00086412 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00000950 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00004142 **LPG 0.00000989**  Railroad Equipment 0.00000989 **Recreational Equipment 0.00453567**  Off
- highway Vehicle Gasoline, 4
- Stroke 0.00453567 **Grand Total 2.05428448** Mississippi NAA SIP, Final

Adopted November 20, 2014 31 Table 8: 2011 Average Summer Day Nonroad Mobile Source VOC Emissions for DeSoto County, MS
**SOURCE EMISSIONS**  **(tons/day) Agricultural Equipment**  **0.03405710** CNG 0.00000034 LPG 0.00000204 Off
- highway Vehicle Diesel 0.02764850 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00019627 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00620995 **Commercial Equipment 0.09490516**  CNG 0.00002230 LPG 0.00147151 Off
- highway Vehicle Diesel 0.00601515 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00688193 Off
- highway Vehicle Gasoline, 4
- Stroke 0.08051427 **Construction and Mining Equipment 0.17111009**  CNG 0.00000018 LPG 0.00074012 Off
- highway Vehicle Diesel 0.12016380 Off
- highway Vehicle Gasoline, 2
- Stroke 0.02740862 Off
- highway Vehicle Gasoline, 4
- Stroke 0.02279737 **Diesel 0.00257838**  Pleasure Craft 0.00146368 Railroad Equipment 0.00111470 **Gasoline 2 -**  **Stroke 0.60474498**  Pleasure Craft 0.60474498 **Gasoline 4 -**  **Stroke 0.04684050**  Pleasure Craft 0.04684050 **Gasoline, 4 -**  **Stroke 0.00032780**  Railroad Equipment 0.00032780 **Industrial Equipment 0.03961546**  CNG 0.00010618 LPG 0.02574198 Off
- highway Vehicle Diesel 0.00903846 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00004860 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00468024 **0.64853067**Mississippi NAA SIP, Final

Adopted November 20, 2014 32 **Lawn and Garden Equipment** LPG 0.00026127 Off
- highway Vehicle Diesel 0.00487374 Off
- highway Vehicle Gasoline, 2
- Stroke 0.22118678 Off
- highway Vehicle Gasoline, 4
- Stroke 0.42220888 **Logging Equipment 0.00065292**  Off
- highway Vehicle Diesel 0.00006655 Off
- highway Vehicle Gasoline, 2
- Stroke 0.00044958 Off
- highway Vehicle Gasoline, 4
- Stroke 0.00013679 **LPG 0.00000276**  Railroad Equipment 0.00000276 **Recreational Equipment 0.01418106**  Off
- highway Vehicle Gasoline, 4
- Stroke 0.01418106 **Grand Total 1.65754687** Mississippi NAA SIP, Final

Adopted November 20, 2014 33 **2011 ONROAD MOBILE EMISSIONS** The following section contains onroad mobile inventory documentation for the portion of DeSoto County

that is within Memphis Ozone Nonattainment Area. The inventory data is for calendar year 2011. The DeSoto County emissions inventory was developed by the Memphis Urban Area Metropolitan Planning Organization (MPO) , with input from MDEQ and others, as part of the 2040 Desoto County Nonattainment Area Moves Air Quality Conformity Demonstration (March 2013)
. To calculate the average summer day emissions, th e MPO modeled weekday

emissions in July
. Onroad mobile sources are sources of pollution caused by vehicles transporting goods or people on public roadways. This includes passenger cars, motorcycles, minivans, sport
-utility vehicles, light
- duty trucks, he avy- duty

trucks, and buses. The sectors include emissions from parking areas as well as emissions while the vehicles are moving. Table 9: 2011 Average Summer Day Onroad Mobile Source Emissions for DeSoto County , MS
**Source Type Source**  **Type Code**  **NOx (tons/day)**  **VOC (tons/day)** Motorcycle 11 0.010 0.102 Passenger Car 21 3.677 2.985 Passenger Truck 31 1.907 1.451 Li ght Commercial Truck 32 0.540 0.298 Intercity Bus 41 0.023 0.001 Transit Bus 42 0.005 0.000 School Bus 43 0.015 0.003 Refuse Truck 51 0.027 0.002 Single Unit Short
- haul Truck 52 0.594 0.146 Single Unit Long - haul Truck 53 0.073 0.019 Motor Home 54 0.042 0.022 Combination Short
- haul Truck 61 0.754 0.040 Combination Long - haul Truck 62 1.302 0.109 **Total 8.969**  **5.178**