DHECPROMOTEPROTECTPROSPERCatherineB.Templeton,DirectorPromotingandprotectingthehealthofthepublicandtheenvironmentAugust22,2014HeatherMcTeerToneyRegionalAdministratorUSEPARegion4AtlantaFederalCenter61ForsythStreet,SW.Atlanta,GA30303-8909RevisiontoSouthCarolinaAirQualityImplementationPlan:MarginalNonattainmentAreaSIPRequirementsfortheYorkCountyportionoftheCharlotte-RockHillNC-SCNonattainmentArea,2008OzoneStandardsDearMs.Toney:TheSouthCarolinaDepartmentofHealthandEnvironmentalControl(Department)ispleasedtosubmittheMarginalNonattainmentAreaStateImplementationPlan(SIP)requirementsfortheYorkCountyportionoftheCharlotte-RockHillNC-SC8-hourOzoneNonattainmentAreaforthe2008NAAQSozonestandards.WithinthedocumentiscertificationthateachCleanAirAct182(a)marginalarearequirementhasbeenmet.hiaddition,therequiredemissionsinventoryissubmittedtodayasAppendixA.TheDepartmentsubmittedapre-hearingcopyofthisSIPbyelectronicmailonMay30,2014,solicitingEPARegion4’scomments.ThesecommentswerereceivedonJune30,2014.TheDepartmenthasconsideredEPAsuggestions,adoptedmanyoftheminthisSIPpackage,andrepliedinadocumentattachedtothispackageasAppendixD.SouthCarolinahasthenecessarylegalauthorityforamendingtheSIPandcarryingouttheresponsibilitiesoftheCAAasshowninAppendixB.ApublicnoticetorevisetheStateImplementationPlan(SIP)waspublishedintheStateRegisteronMay23,2014,andisincludedasAppendixCinthispackage.TheStateRegisternoticereferencesa30-daycommentperiodthatconcludedonJune23,2014.ApublichearingonthisissuewasofferedonJune30,2014,howevertherewerenorequestsforthehearing,norwereadversecommentsreceivedfromthepublic,sothehearingwascancelledinaccordancewith40CFR51.102.AnoticehasbeenpublishedintheStateRegistertoday,August22,2014,announcingtheamendmentoftheSouthCarolinaAirQualitySIPwiththispackage(AppendixE.)TheDepartmenthasdoneitsbesttodevelopthisrevisiontomeetthestatutoryrequirementsoftheCleanAirActabsentfinalimplementationguidanceandinordertomeetthedeadlineforsubmission.TheDepartmentbelievesaproposedimplementationruleshouldhavebeenpromulgatedconcurrentlywiththeproposedozoneNAAQS.Theshortenedtimefratnebetweenfinalizingthe2008ozoneNAAQSimplementationruleandtheexpectedproposalofthe2014ozoneNAAQSfurthercomplicatesthisissue.AsSouthCarolina,likeallstates,mustbeproactiveinplanninginordertomeetstatutorydeadlines,EPA’sfailuretoissuetimelyguidancemakesfutureguidanceburdensomeandseeminglycapricious.Therefore,theDepartmentwouldliketoreiteratetheneedforCAAreformasthisisaninstanceinwhichSOUThCAROLINADEPARTML\IOFlIF\l.Iii\\I)ENVIRONMENTALCONTROL2600BtillSttedl•Co1umba.SC29201•Phone:(0-)9-3432.wwwscdhec.govSC Marginal Nonattainment

Area SIP August

22, 2014 Page

2 both state and regional
EPA hands

are tied due

to the untimely rulemaking

and outdated statutory deadlines.’ The Department solicits EPA’s approval

of this plan and
its associated emissions inventory,

and appreciates

your assistance. Should
you

or your staff have any questions

or comments concerning

this SIP revision, please contact Myra Reece

of the Bureau

of Air Quality

at 803-898-4102,

or reecernc@dhec.sc.gov. Sincerely, Elizabeth

A. Dieck Director

of Environmental

Affairs South Carolina Department

of Health
and Environmental
Control ec:

R. Scott Davis

Ill, Chief;
Air Planning Branch, EPA Region

4 Lynorae Benjamin,
Chief; Regulatory Development Section, EPA Region

4 Jane Spanu, Ozone Coordinator,

EPA Region

4 Richard Wong, South Carolina Liaison,
EPA Region

4 Myra Reece, Chief, BAQ, SCDHEC Rhonda

B. Thompson, Assistant Bureau Chief; BAQ, SCDHEC Robert

J. Brown,

Jr., Director,

Div.
of Air Assessment

& Regulation,

BAQ, SCDHEC L. Nelson Roberts,

Jr., Manager,

Air Quality Standards

& Assessment Section, I3AQ SCDHEC Maeve

S. R. Mason, Manager, Regulation Development

and SIP Management Section, BAQ, SCDHEC Bill Harris, Chief, Catawba Indian Nation David Hooper, RFATS representative,

City
of Rock Hill,
SC Sheila Holman, Director, North Carolina DENR, Division

of Air Quality CD enclosure: 2008 8-Hour Ozone Marginal Nonattainment

Area SIP Requirements Appendix

A: Emissions Inventory

and Documentation

for York County,

SC Portion

of Charlotte-Rock

Hill, NC-SC Marginal Nonattaiimient

Area (2008 NAAQS Ozone Standards) Appendix

B: Copy

of Legal Authority. Appendix

C: Notice

of Intent

to Revise

the SIP, SC State Register,
May
23, 2014 Appendix

D: EPA comments

on the pre-hcaring submittal

of 5/30/14

and Department’s response Appendix

E: Notice

of SIP Revision,

SC Slate Register, August

22, 2014 See SC DHEC Deputy Commissioner

Robert

W. King’s comments

at the July 31, 2012, Whitfield Clean
Air Act Forum: http://energvconimerce.house.ov!si tes/republicans.enenwcornnierce.houscgov/files/analysis/CAAforumJ2O

12073 1/Kitj.gpjf

## Marginal Nonattainment Ar ea SIP Requirements for York County, SC Portion of Charlotte-Rock Hill, North Carolina-South Caro lina Nonattainment Area August 22, 2014Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 2 of 15 South Carolina Marginal Air Quality Implementation Plan

For the York County, South Carolina Port ion of the Charlotte-Rock Hill, NC-SC 8-Hour Ozone Nonattainment Area

Ground level ozone, one of the principal components of “smog,” is a serious air pollutant that harms human health and the environment. Ozone is generally not directly emitted to the atmosphere; rather it is formed in the atmosphere by photochemical re actions between volatile organic compounds (VOC), oxides of nitrogen (NO X ), and carbon monoxide (CO) in the presen ce of sunlight. High levels of ozone can damage the respiratory system and cause breathing problems, throat irritation, coughing, chest pains, and greater susceptibility to respiratory infection. Hi gh levels of ozone also cause serious damage to forests and agricultural crops, resulting in ec onomic losses to logging and farming operations.

On April 30, 2012, the Environmental Protection Agen cy (EPA) issued final area designations for the 2008 ozone National Ambient Air Quality Standard (NAA QS). (77 FR 30144) At that time, all of South Carolina was classified as unclassifiable/attainment with the exception of a portion of York County. Although the monitor in York County was meeting a nd continues to meet the standard, EPA included the eastern, urbanized area of York County in the Char lotte-Rock Hill, NC-SC nonattainment area (York NAA) because of its belief that emissions in that ar ea contributed to violations at monitors in the Charlotte area.. This is the same portion of York Co unty that was designated in 2004 as nonattainment for the 1997 ozone standard, with the exception of the Catawba Indian Nation Reservation. (69 FR 23857) The York NAA was designated marginal for the 20 08 ozone NAAQS and as such South Carolina has already implemented NAA requirements in the area due to its 1997 moderate designation.

Per Clean Air Act (CAA) Section 182(a), Marginal N onattainment Area Requirements which apply to the York NAA include nonattainment new source review (NSR ), emissions inventory, emissions statements, etc. The Department has had lengthy dialogue with EPA Region 4 staff and it has been brought to our attention that many if not all of these SIP requirements can be met as a certification of completion/implementation. For the reasons below, the Department believes each marginal area requirement in the Clean Air Act has been or will be met.

The Department also recognizes that the 2008 Ozone SI P Requirements Rule (Proposed June 06, 2013) is not expected to be finalized until after the date of submittal of this document. Designations were effective July 20, 2012, and emission inventories for nonattain ment areas are due July 20, 2014. States will not have time to complete the work required for SIPs if they wait for EPA to finalize the SIP Requirements Rule.

The Department is moving forward with certification of the associated marginal area SIP requirements for the York County portion of the Charlotte-Rock H ill, NC-SC Nonattainment area for the 2008 ozone NAAQS based on the CAA in the absence of EPA guidan ce in an attempt to meet statutory deadlines. This is an example of a critical need for Clean Air Act reform (See SC DHEC Deputy Commissioner Robert W. King comments at July 31, 2012, Whitfield Clean Air Act Forum: http://energycommerce.house.gov/sites/republicans.en ergycommerce.house.gov/files/analysis/CAAforum /20120731/King.pdf )

.Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 3 of 15 Clean Air Act Section 182(a)(1): Inventory

Emissions Inventory reporting is required by SC Re gulation 61-62.1, Section III, and condition 4.B.6 contained in Part 4.B of a facility’s Title V permit if the permit was issued before 10/09/2007; condition 4.6 contained in Part 4 of a facility’s Title V pe rmit if the permit was issued between 10/09/2007, and 10/14/2008; or condition 4.3 contained in Part 4 of a facility’s Title V permit if the permit was issued after 10/14/2008. Section III, Emissions Inventory, has been in SC regulatory text since 1983 and has been updated/amended with relative frequency. Sec tion III was amended in its entirety in 2005 to streamline emissions inventory reporting requireme nts and for consistency with the Consolidated Emissions Reporting Rule (CERR) which was published in the Federal Register on June 10, 2002 (67 FR 39602).

The Department, per the Air Emissions Reporting Re quirements (AERR) Rule (73 FR 76539), met 2012 reporting requirements for the York NAA utilizing 2011 data. On March 4, 2013, in a letter addressed to Ms. Myra Reece, Richard A. Wayland stated that our “agency’s emissions data submission is ‘complete.’” See Item 1 below. While the Depa rtment understands the difference between the AERR submittal and the requirements for a partial county em ission inventory for the nonattainment area, the Department does not see the need for marginal ar ea emissions inventory reporting as no modeling is required to be redesignated to attainment. Any emissi ons inventory reporting for marginal areas outside of what has already been collected into the National Emissions Invent ory (NEI) seems to be redundant, burdensome, and unnecessary. The Department expre ssed this concern in its comments on the SIP Requirements Rule. However, absent a final SIP Requi rements Rule and in consideration of EPA Region 4’s comments on the State’s pre-hearing SIP package, the Department has provided this information.

The Department has resubmitted the data from the 2012 AERR inventory (2011 base year data) and the methodologies used to obtain these data. These docum ents are included herein as Appendix A. The Department certifies that the requirements of C AA 182(a)(1) which requires a comprehensive, accurate, current inventory of actual emissions from all sources within 2 years after the date of the enactment of the CAA Amendments of 1990 is met by the emissions inventory submission contained in Appendix A.

Clean Air Act Section 182(a)(2)(A): Reasonab le Available Control Technology Corrections

This requirement applies (per EPA) only to pre-19 90 ozone issues. Since South Carolina had none, section 182(a)(2)(A) does not apply and is re ferred to here only for completeness.

Clean Air Act Section 182(a)(2)(B): Savings Clau se for Vehicle Inspection and Maintenance

This requirement applies (per EPA) only to pre-19 90 ozone issues. Since South Carolina had none, section 182(a)(2)(B) does not apply and is re ferred to here only for completeness.

Clean Air Act Section 182(a)(2)(C): Permit Programs

The Department has met the require ment of CAA Section 182(a)(2)(C) as outlined in 76 FR 36875 which fully approved South Carolina’s Nonattainment NSR program. The Department has a SIP-approved nonattainment new source review permitting program at R. 61-62.5, Standard No. 7.1 which governs any new construction or modification of an existing facilit y in a nonattainment area subject to requirementsMarginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 4 of 15 for new source review. EPA approved the nonattain ment new source review permitting program into South Carolina’s SIP on June 2, 2008 ( 73 FR 31369) and June 23, 2011 (76 FR 36875)

Clean Air Act Section 182(a)(3)(A): Periodic Inventory – General Requirement

As noted under the portion of this letter regarding CAA Section 182(a)(1), Regulation 61-62.1, Section III, Emissions Inventory, and the Air Emissions Re porting Requirements (AERR) Rule (73 FR 76539) requirements lay out the framework for periodic emissi ons inventory reporting. Th e Department will meet the requirement of CAA Section 182 (a)(3)(A) with 2014 data as part of the 2014 data submission.

EPA Region 4’s September 24, 2013 comment letter st ates that EPA is currently developing guidance on this portion of the 2008 ozone NAA SIP Requirements. As of this document’s date of submittal, EPA’s guidance has not been published or otherwise disseminated.

Clean Air Act Section 182(a)(3)(B): Periodic Inventory – Emissions Statements

South Carolina withdrew its Augus t 31, 2007, attainment demonstra tion for 1997 8-Hour ozone NAAQS on December 22, 2008, and resubmitted it on April 29, 20 10. On March 7, 2012, EPA determined that the bi-state Charlotte Area attained the 1997 8-hour ozone NAAQS and consequently, SC withdrew its attainment demonstration on January 12, 2012 pur suant to 40 CFR 51.918 (the RFP, emissions statements, and emissions inventory su bmittals, however, were not withdrawn).

The April 29, 2010, SIP revision states that the Department has the authority to require annual emissions statements and is taking specific action to comply wi th the emissions statement requirements for any class or category of stationary sources that emits 25 tons per year or more of VOCs or NO X . The Department ‘‘has and is requiring, receiving, and archiving’’ em issions statements, through Regulation 61-62.1, Section III. The Department requires reporting through Satellite i-STEPS or the form found at: http://www.dhec.sc.gov/Library/d-1216.pdf

.
EPA evaluated the Department’s April 29, 2010, SI P revision as it relates to the emissions statement requirements and made the determination that the re quirements of CAA section 182(a)(3)(B) have been met. EPA published a Direct Final Rule on June 25 , 2012 (77 FR 37812), approving the Department’s emissions statement SIP submittal: http://www.gpo.gov/fdsys/pkg/FR-2 012-06-25/pdf/2012-14955.pdf.

Additionally, the Department took action in th e 2013 General Assembly Package (South Carolina State Register Document No. 4388) to put Emissions Statem ent requirements for ozone nonattainment areas into SC regulatory text in an act of good custom er service—not to fulfill CAA Section 182(a)(3)(B) requirements as these requirements have previously b een met. This amendment to Regulation 61-62.1, Section III became law on June 27, 2014.

The Department certifies that the Emissions Statem ent requirements of CAA Section 182(a)(3)(B) have been met per the SIP approval published by EPA in 77 FR 37812. The Department did not stop collecting emissions statements from facilities between the 1997 and the 2008 oz one NAAQS nonattainment designations as the York nonattainment area had already been designated nonattainment for the 2008 ozone NAAQS (April 2012) at the time EPA approved th e Department’s York redesignation request for the 1997 standard (77 FR 75862, December 26, 2012). Annual emissions statement collection for the York nonattainment has been ongoing as the 1997 and the 2008 ozone NAAQS timelines overlap significantly (as may occur with th e expected ozone NAAQS revision).Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 5 of 15 Clean Air Act Section 182(a)(4): General Offset Requirements

On December 31, 2002 (67 FR 80185) and October 27 , 2003 (68 FR 61247), the EPA finalized revisions governing NSR program mandated by parts C and D of Title I of the CAA. The major NSR program contained in parts C and D of Title I of the C AA is a preconstruction review and permitting program applicable to new or modified major stationary sources of air pollutants regulated under the CAA. In areas not meeting the health-based NAAQS, the program is implemented under the requirements of part D of title I of the CAA. This is referred to as the nonattainment NSR program. In areas meeting the NAAQS (attainment areas), the NSR requirements under part C of Title I apply. This is referred to as the Prevention of Significant Deterioration (PSD) program. Collectively, these programs are commonly referred to as the major NSR program.

On July 1, 2005, the Department submitted a final SIP amendment to then EPA Region 4 Regional Administrator, James I. Palmer which was conditionally approved via 73 FR 31369. On April 17, 2009, the Department submitted a SIP revision to EPA to m eet the requirements of the conditional approval of SC’s Nonattainment New Source Review program. On June 23, 2011, EPA took final action to approve SC’s Nonattainment New Source Review program in full (76 FR 36875). Ozone nonattainment area emission offsetting ratios (to include marginal area o ffset requirements) have been adopted into SC’s regulatory text at Regulation 61-62.5, Standard 7.1, Nonattainment New Source Review, paragraph (d)(1)(C)(vii)(b).

The Department believes 76 FR 36875 which appr oved SC’s Nonattainment New Source Review program in full meets the requirements of CAA Section 182(a)(4).

Clean Air Act Section 176(c): Transportation Conformity

The purpose of transportation conformity is to ensu re that Federal transportation actions occurring in nonattainment and maintenance areas do not hinder th e area from attaining and maintaining the 8-hour ozone standard. The level of emi ssions estimated by the Rock Hill-Fort Mill Area Transportation Study (RFATS) for the Transportation Implementation Plan (TIP) and Long Range Transportation Plan (LRTP) must not exceed the motor vehicle emission budget (MVEB) for the area (approved December 26, 2012 in 77 FR 75862). Item 2 below is a letter from Yvette G. Taylor (Federal Transit Administration Regional Administrator) and Robert L. Lee (Federal Highway Administrations Division Administrator), finding the Rock Hill-Fort Mill Area Transportation St udy (RFATS) 2030 LRTP and FY 2014-2019 TIP in conformity with the purpose of the SIP in accordance with 40 CFR 93.

The Department believes this conformity determ ination meets the York County nonattainment area’s transportation conformity requirements for the 2008 ozone NAAQS.Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 6 of 15 

## Item 1:

March 4, 2013

Letter from Richard A. Wa yland to Ms. Myra ReeceMarginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 7 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 8 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 9 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 10 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 11 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 12 of 15 

## Item 2:

June 07, 2013

RFATS 2035 LRTP and FY 2014-2019 TIP Conformity DeterminationMarginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 13 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 14 of 15Marginal Nonattainment Area SIP Requirements for York C ounty, SC portion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area August 22, 2014 Page 15 of 15

### Appendix A Emissions Inventory and Documentation for York County, SC Portion of Charlotte-Rock Hil l, North Carolina-South Carolina Marginal Nonattainment Area (2008 NAAQS Ozone Standards)

Prepared by South Carolina Department of He alth and Environmental Control Bureau of Air Quality

August 22, 2014Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 2 TABLE OF CONTENTS



### LIST OF TABLES ................................................................................................................. ....... 3

LIST OF ACRONYMS ............................................................................................................... . 4

PART I: EMISSIONS INVENTORY SUMMARY................................................................... 5

I. INTRODUCTION.............................................................................................................. 5 II. BASELINE YEAR (2011) INVENTORIES..................................................................... 5

PART II: POINT SOURCE EMISSION S INVENTORY DOCUMENTATION .................. 5

I. INTRODUCTION.................................................................................................................. 5 II. 2011 INDUSTRIAL POINT SOURCE INVENTORY DEVELOPMENT...................... 6 III. 2011 AIRPORT POINT SOURCE INVENTORY DEVELOPMENT........................... 6 IV. DETAILED 2011 ACTUAL POINT SOURCE INVENTORY ...................................... 8 PART III: AREA, NONROAD MOBILE, AND EVENT SO URCES EMISSIONS INVENTORY DOCUMENTATION ........................................................................................ 11

I. INTRODUCTION AND SCOPE........................................................................................ 11 II. OVERALL METHODOLOGY ........................................................................................ 11 A. SOURCE CATEGORY IDENTIFICATION .............................................................. 11 B. NONPOINT SOURCE EMISSION ESTIMATION APPROACH............................ 11 C. NONROAD SOURCE EMISSION ESTIMATION APPROACH ............................ 12 III. 2011 NONPOINT SOURCE INVENTORY ................................................................... 12 A. NONPOINT CATEGORY METHODOLOGIES..................................................... 16 B. NON-POINT AVERAGE SUMMER DAY EMISSIONS ESTIMATE.................. 23 V. 2011 EVENTS ..................................................................................................................... 32

PART IV: ONROAD MOBILE SO URCE EMISSIONS INVENTORY DOCUMENTATION.................................................................................................................. 33

I. INTRODUCTION............................................................................................................ 33 II. ONROAD MOBILE SOURCE INVENTORY DEVELOPMENT .......................... 33 A. YORK COUNTY 2011 VEHIC LE POPULATION INPUTS.................................. 34 B. YORK COUNTY 2011 VEHICLE MILES TRAVELED (VMT) INPUTS ........... 34 C. AVERAGE SUMMER DAY EMISSIONS ESTIMATE ........................................ 35Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 3 LIST OF TABLES

Table 1: 2011 Emissions Summary for the NAA of Yo rk County, SC, tons per average summer day .......5 Table 2: Biogenic Emissions Summary for the NAA of York County, SC, tons/average summer day .......5 Table 3: Source Classification codes for th e aircraft sector in the 2011 NEI ...............................................7 Table 4: 2011 Actual Point Source Emis sions for NAA of York County, SC .............................................8 Table 5: 2011 Actual Nonpoint Source Emissions for NAA of York County, SC.....................................12 Table 6: Source Classification Codes us ed in the Commercial Cooking sector .........................................16 Table 7: Assumptions Used to Estimate Commercial/In stitutional Sector Stationary Source Distillate Fuel Consumption.................................................................................................................... ...................19 Table 8: SCCs in the Residential Fuel Combustion Sectors (except Wood) in the 2011 NEI....................20 Table 9: SCCs in the Residential Wood Combustion Sector in the 2011 NEI ...........................................21 Table 10: 2011 Actual Nonroad Source Emissions for NAA of York County, SC....................................24 Table 11: 2011 Actual Event Source Emissions for NAA of York County, SC.........................................32 Table 12: York County, SC 2011 Vehicle Population.............................................................................. ..34 Table 13: York County, SC 2011 Vehicle Mil es Travel ed.........................................................................3 5Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 4 LIST OF ACRONYMS

Acronym Definition AERR Air Emissions Reporting Requirements AVG Average CDB County Data Base CMV Commercial Marine Vessel CNG Compressed Natural Gas Department South Carolina Department of Health and Environmental Control DMV South Carolina Department of Motor Vehicles EDMS Emissions and Dispersion Modeling System EGU (Point) Electric Generating Unit EIA Energy Information Administration EIIP Emissions Inventory Improvement Program EIS Emissions Inventory System EPA U.S. Environmental Protection Agency EPA-OAQPS EPA Office of Air Quality Planning and Standards ERTAC Eastern Regional Technical Advisory Committee FAA Federal Aviation Administration GA General Aviation GHG Greenhouse Gas GSE Ground Support Equipment HAP Hazardous Air Pollutant HPMS Highway Performance Management System ICE Internal Combustion Engine LPG Liquid Petroleum Gas LTO Landing and Takeoff MACT Maximum Achievable Control Technology MOVES Motor Vehicle Emission Simulator MSW Municipal Solid Waste MW Megawatt NAA Nonattainment Area NAAQS National Ambient Air Quality Standards NAICS North American Industry Classification System NCD NMIM County Database NEI National Emissions Inventory NG Natural Gas NMIM National Mobile Inventory Model NO x Nitrogen Oxides PFC Portable Fuel Container PM Particulate Matter QA Quality Assurance SCC Source Classification Code SEDS State Energy Data System SF2 SMARTFIRE2 estimation system SIC Standard Industrial Classification VMT Vehicle Miles Traveled VOC Volatile Organic Compounds WLF Wild Land FireEmissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 5 PART I: EMISSIONS INVENTORY SUMMARY

I. INTRODUCTION

The following section contains emission summary ta bles for the nonattainment area (NAA) of York County, SC, which is part of the Charlotte-Rock Hill, NC-SC Nonattainment Area. The inventory data is for calendar year 2011.

II. BASELINE YEAR (2011) INVENTORIES

The emissions are reported as tons/average summer da y of pollutant. In accordance with the requirements of EPA’s, Emissions Inventory Guidance for Implem entation of Ozone and Particulate Matter National Ambient Air Quality Standards (NAAQS) and Regional Haze Regulations November 2005 , the only pollutants reported are Nitrogen Oxides (NO x ) and Volatile Organic Compounds (VOC) and emissions are summed as tons/average summer day for the year 2011. Table 1: 2011 Emissions Summary for the NAA of York County, SC, tons per average summer day
SECTOR YORK COUNTY, SC NAA 2011 NO x TONS/AVG SUMMER DAY YORK COUNTY, SC NAA 2011 VOC TONS/AVG SUMMER DAY Point 4.71 4.02 Nonpoint 0.93 6.93 Events 0.04 0.42 Nonroad Mobile 2.63 1.78 Onroad Mobile 11.43 5.30 Total 19.74 18.50

Table 2: Biogenic Emissions Summary for the NAA of York County, SC, tons/average summer day
County NO x VOC York, SC 0.17 26.31

PART II: POINT SOURCE EMISSIONS INVENTORY DOCUMENTATION

I. INTRODUCTION

The following sections contain stationary point in ventory documentation for the NAA of York County, SC, which is part of the Charlotte-Rock Hill, NC-S C Nonattainment Area. The inventory data is for calendar year 2011.

The York County, SC emissions inventory was deve loped by the Department, with some additional sources and emissions supplied by EPA, as part of the 2011 NEI effort. The 2011 EI was developed per the Air Emissions Reporting Requirements (AERR) rule . Emission estimates were calculated in tons per year, and converted to tons per average summer day for this submittal. Section II documents the Department-developed 2011 point in ventory. Section II only includes the Title V permitted industrial sources; Section III addresses additional point sour ces calculated by EPA as part of the 2011 NEI. These sources include airport and railyards, which used to be captured within the nonroad mobile category. However, there are no railyards in York County, SC , so that category will not be addressed in this document.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 6 II. 2011 INDUSTRIAL POINT SOU RCE INVENTORY DEVELOPMENT

This section details the development of the 2011 base year inventory for industrial point sources. The development of the point source inventory by the De partment began with the collection of actual 2011 process data and emission estimates from all stationary sources, in the NAA of York County, that are subject to Title V permitting program. Sources required to send in inventory data are determined in accordance with the Air Emissions Reporting Rule (A ERR). Every 2011 inventor y received was reviewed by the Department’s staff to ensure that the correct procedures were followed in developing the inventory and to ensure that appropriate emission factors we re used. The Department’s staff rely on EPA-approved methodology and use preferred methods over less prefe rred methods where available when performing or accepting calculations. For example, Department approved stack testing emission factors are preferred over AP-42 emission factors; when available, contin uous emission monitor data are used preferentially over stack test data. The order of preferred methods from best to least desirable are 1) mass balance calculations, 2) continuous emissions monitor data, 3) Bureau approved and reviewed stack test emission factors, 4) AP-42 or FIRE Emission factors, 5) in-house stack test, and 6) other.

The Department submitted the 2011 point data to th e EPA as part of the 2011 NEI effort. The EPA did make some amendments to the Department’s data, but primarily to “gap fill” pollutants or sources not provided by S/L/T agencies.

To estimate the average summer day emissions for indus trial point sources, the Department used monthly throughput percentages provided by the facilities. If no monthly throughput percentages were provided by the facility, the Department assumed an equal pe rcentage for all twelve months. The throughput percentage for months May, June, Ju ly, August, and Septembe r were added together to get the percentage of the throughput assumed to have been used during the ozone season. This ozone season percentage was then multiplied by the annual emissions to get an ozone season emission estimate. The ozone season emission estimate was then divided by the number of days in the 2011 ozone season, 153 days, to get an estimate of the average summer day emissions.

III. 2011 AIRPORT POINT SOURCE INVENTORY DEVELOPMENT

The aircraft sector includes all airc raft types used for public, private, and military purposes. This includes four types of aircraft: (1) Commercial, (2) Air Taxi s (AT), (3) General Aviation (GA), and (4) Military. A critical detail is whether each aircraft is turbine- or piston-driven, which allows the emissions estimation model to assign the fuel used, jet fuel or aviation g as, respectively. The fraction of turbine- and pistondriven aircraft is either collected or assumed for all aircraft types. Commercial ai rcraft include those used for transporting passengers, freight, or both. Commercial aircraft tend to be larger aircraft powered with jet engines. Air Taxis carry passengers, freight, or bot h, but usually are smaller aircraft and operate on a more limited basis than the commercial aircraft. Gene ral Aviation includes most other aircraft used for recreational flying and personal trans portation. Finally, military aircraft are associated with military purposes, and they sometimes have activity at non-military airports.

The national AT and GA fleet includes both jet- and pi ston-powered aircraft. Most of the Air Taxi and General Aviation fleet are made up of larger piston- powered aircraft, though smaller business jets can also be found in these categories. Military aircraft c over a wide range of aircraft types such as training aircraft, fighter jets, helicopters, and jet-power ed and piston-powered planes of varying sizes. The 2011 NEI also includes emission estimates for airc raft auxiliary power units (APUs) and aircraft ground support equipment (GSE) typically found at air ports, such as aircraft refueling vehicles, baggage handling vehicles, and equipment, aircra ft towing vehicles, and passenger buses.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 7 This sector can include the SCCs listed in Table 3 below:

Table 3: Source Classification cod es for the aircraft sector in the 2011 NEI

SCC Data Category SCC Description EPA estimates
2275001000 Point Mobile Sources; Aircraft; Military Aircraft; Total X
2275020000 Point Mobile Sources; Aircraft; Commercial Aircraft; Total: All Types X
2275050011 Point Mobile Sources; Aircraft; General Aviation; Piston X
2275050012 Point Mobile Sources; Aircraft; General Aviation; Turbine X
2275060011 Point Mobile Sources; Aircraft; Air Taxi; Piston X
2275060012 Point Mobile Sources; Aircraft; Air Taxi; Turbine X

2260008005 Point Mobile Sources; Off-highway Vehicle Gasoline 2-Stroke; Aircraft Ground Support Equipment X

2265008005 Point Mobile Sources; Off-highway Vehicle Gasoline 4-Stroke; Aircraft Ground Support Equipment X

2267008005 Point Mobile Sources; LPG; Aircraft Ground Support Equipment X
2268008005 Point Mobile Sources; CNG; Aircraft Ground Support Equipment X

2270008005 Point Mobile Sources; Off-highway Vehicle Diesel; Aircraft Ground Support Equipment X

2275070000 Point Mobile Sources; Aircraft; Aircraft Auxiliary Power Total X

EPA developed emissions estimates associated with ai rcrafts’ landing and takeoff (LTO) cycle. The cycle begins when the aircraft approaches the airport on its descent from cruising altitude, lands, taxis to the gate, and idles during passenger deplaning. It contin ues as the aircraft idles during passenger boarding, taxis back out onto the runway for subsequent take off, and ascent (climb out) to cruising altitude. Thus, the five specific operating modes in an LTO are (1) Approach, (2) Taxi/idle-in, (3) Taxi/idle-out, (4) Takeoff, and (5) Climbout. The LTO cycle provides a basis for calculating aircraft emissions. During each mode of operation, an aircraft engine operates at a fairly standard power setting for a given aircraft category. Emissions for one complete cycle are calc ulated using emission factors for each operating mode for each specific aircraft engine comb ined with the typical period of time the aircraft is in the operating mode.

Refer to Development of 2011 Aircraft Component for National Emissions Inventory, June 17, 2013 for more detail on preparing the LTO data and runni ng the Emissions and Dispersion Modeling System (EDMS).

Emissions for GSE and APUs associated with aircra ft-specific activity were also estimated by EDMS, using the assumptions and defaults incorporated in the model. EPA’s NONROAD model also estimates GSE emissions, but that method is deemed less accu rate than EDMS’s LTO-based estimates and an EIS critical error check prohibits GSE SCCs from being submitted to the non-road equipment data category which would duplicate emissions.

The Department reviewed the EPA inputs into EDMS and the emissions for York Co, SC but no changes were made to the EPA data for 2011 NEI v1. Only airports found within the NA area of York County were included in this submittal.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 8 To estimate the average summer day emission for the airport related point emissions, the Department started with the EPA generated 2011 annual emissions. The Department had no actual activity data from these sources, so the exact amount of activity that occurred during the ozone season months could not be ascertained. Therefore, it was assumed that these s ources operated at a consta nt 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 ge t an estimate of activity for an average ozone season day. This gives a result of 0.272% activity for each ozone season day. The estimated ratio of 0.00272 was mu ltiplied by the annual emissions to estimate the average summer day emissions.

IV. DETAILED 2011 ACTUAL PO INT SOURCE INVENTORY

Table 4 details the final 2011 actual base year inventory for the NAA of York County, SC. All values are in tons per average summer day. Table 4: 2011 Actual Point Source Emissions for NAA of York County, SC

Point Source Type Facility Name SCC Unit ID Process ID NO X tons/average summer day VOC tons/
average summer day Industrial Cytec Carbon Fibers Rock Hill 30102499 1 3 0.034899059 0.033080382 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 5 0.034899059 0.033080382 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 7 0.034899059 0.033080382 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 9 0.011367745 0.00099128 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 10 0.011367745 0.00099128 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 11 0.011367745 0.00099128 Industrial Cytec Carbon Fibers Rock Hill 30102499 1 13 0 0.000506408 Industrial Cytec Carbon Fibers Rock Hill 30102499 IAS 1 0 8.16667E-07 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 1 0 0 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 2 0.003735 0.000205425 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 4 0.00249 0.00013695 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 6 0.00249 0.00013695 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 8 0.003028415 0.000166564 Industrial Cytec Carbon Fibers Rock Hill 39000699 1 12 0.00083 0.00004565 Industrial Cytec Carbon Fibers Rock Hill 39000699 N01 1 0.002075 0.000114125 Airport Piedmont Medical Center 2275050011 (b lank) (blank) 1.6327E-06 3.77968E-06 Airport Piedmont Medical Center 2275050012 (b lank) (blank) 1.45671E-05 3.10239E-05 Industrial RESOLUTE FP US INC 10200401 8 3 0.022595724 0.000365377 Industrial RESOLUTE FP US INC 10200401 8 8 0.036062639 0.000583141 Industrial RESOLUTE FP US INC 10200402 7 3 0.022619462 0.000115153 Industrial RESOLUTE FP US INC 10200402 7 5 0.019379827 9.86615E-05 Industrial RESOLUTE FP US INC 10200405 8 1 0.050851111 0.001022233 Industrial RESOLUTE FP US INC 10200601 7 7 0.00057308 1.12564E-05 Industrial RESOLUTE FP US INC 10200601 8 4 0.020387621 0.000400472 Industrial RESOLUTE FP US INC 10200601 8 9 0.023633136 0.000464223 Industrial RESOLUTE FP US INC 10200603 6 5 0.002119803 0.00011659Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 9

Point Source Type Facility Name SCC Unit ID Process ID NO X tons/average summer day VOC tons/
average summer day Industrial RESOLUTE FP US INC 10200603 6 7 0.092137694 0.00506758 Industrial RESOLUTE FP US INC 10200604 8 2 0.002150556 7.90288E-05 Industrial RESOLUTE FP US INC 10200901 8 5 0.661551722 0.051119794 Industrial RESOLUTE FP US INC 10200901 8 10 0.916988722 0.070858083 Industrial RESOLUTE FP US INC 10201002 6 8 0 0 Industrial RESOLUTE FP US INC 10201301 6 9 0.000707778 2.72222E-05 Industrial RESOLUTE FP US INC 30700101 2 3 0 0.030894444 Industrial RESOLUTE FP US INC 30700103 7 1 0 0.007595 Industrial RESOLUTE FP US INC 30700105 7 8 0.008884299 0.011105387 Industrial RESOLUTE FP US INC 30700105 7 9 0.017048162 0.021310209 Industrial RESOLUTE FP US INC 30700106 7 10 0.329416111 0.007849419 Industrial RESOLUTE FP US INC 30700107 2 6 0 2.71242E-05 Industrial RESOLUTE FP US INC 30700110 7 4 0.666372778 0.062190256 Industrial RESOLUTE FP US INC 30700110 7 6 1.101846667 0.119342222 Industrial RESOLUTE FP US INC 30700114 3 2 0 0.177120915 Industrial RESOLUTE FP US INC 30700115 4 1 0 0.00089404 Industrial RESOLUTE FP US INC 30700117 2 4 0.550919281 0.234841176 Industrial RESOLUTE FP US INC 30700121 9 1 0 1.193607333 Industrial RESOLUTE FP US INC 30700122 7 11 0 0.051041667 Industrial RESOLUTE FP US INC 30700199 2 7 0 0.016518627 Industrial RESOLUTE FP US INC 30700199 2 8 0 0.002305556 Industrial RESOLUTE FP US INC 30700199 6 4 0 0.121656111 Industrial RESOLUTE FP US INC 30700199 7 2 0 0.008901667 Industrial RESOLUTE FP US INC 30700199 9 2 0.000108889 0.000471282 Industrial RESOLUTE FP US INC 30700199 10 1 0 0.166627222 Industrial RESOLUTE FP US INC 30700234 2 5 0 0.004665359 Industrial RESOLUTE FP US INC 30701220 5 1 0 0.523946111 Industrial RESOLUTE FP US INC 30701399 6 1 0 0.061222778 Industrial RESOLUTE FP US INC 30701399 6 2 0 0.098190556 Industrial RESOLUTE FP US INC 30701399 6 3 0 0.144223333 Industrial RESOLUTE FP US INC 39999996 IA 2 0 0.043538784 Industrial RESOLUTE FP US INC 39999996 IA 3 0 0.014322327 Industrial RESOLUTE FP US INC 39999996 IA 4 0 0.032919569 Industrial RESOLUTE FP US INC 39999996 IA 5 0 0.143114353 Industrial RESOLUTE FP US INC 39999996 IA 6 0 0.356587817 Industrial RESOLUTE FP US INC 39999996 IA 7 0 0.123427961 Industrial RESOLUTE FP US INC 40688801 IA 8 0 0.00547298 Industrial RESOLUTE FP US INC 50300107 8 6 1.63333E-05 0 Industrial RESOLUTE FP US INC 50300107 8 11 2.17778E-05 0 Airport Rock Hill/York Co/Bryan 2275001000 (blank) (blank) 1.07554E-05 9.66008E-05Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 10

Point Source Type Facility Name SCC Unit ID Process ID NO X tons/average summer day VOC tons/
average summer day Airport Rock Hill/York Co/Bryan 2275050011 (blank) (blank) 0.001339323 0.003100511 Airport Rock Hill/York Co/Bryan 2275050012 (blank) (blank) 0.002585183 0.005505737 Airport Rock Hill/York Co/Bryan 2275060011 (blank) (blank) 9.39158E-06 1.00857E-05 Airport Rock Hill/York Co/Bryan 2275060012 (blank) (blank) 0.000165033 0.0002141 Airport YORK 2275050011 (blank) (blank) 6.18888E-05 0.000143271 Airport YORK 2275050012 (blank) (blank) 0.000198505 0.000422759 NO X tons/average summer day VOC tons/
average summer day

Grand Total 4.71 4.02Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 11 PART III: AREA, NONROAD MOBILE, and EVENT SOURCES EMISSIONS INVENTORY DOCUMENTATION

I. INTRODUCTION AND SCOPE

The following sections contain nonpoint, nonroad mobile , and events inventory documentation for York County, SC, which is part of the Charlotte-Rock H ill, NC-SC Nonattainment Area. The inventory data is for calendar year 2011.

The York County, SC emissions inventory was devel oped by the EPA, with input from the Department, as part of the 2011 NEI effort. The 2011 EI was de veloped per the Air Emissions Reporting Requirements (AERR) rule. Emission estimates were calculated in tons per year, and converted to tons per average summer day for this submittal. Section III documents EPA/Department develope d 2011 Nonpoint Source inventory; Section IV addresses the development of the nonroad emissions inventory for 2011; Section V documents the development of the 2011 Events inventory.

II. OVERALL METHODOLOGY

A. SOURCE CATEGORY IDENTIFICATION

Stationary source emissions data from sites and processes that do not meet the reporting requirements for point sources are classified as nonpoint sources. Nonpoint sources are small-scale industrial, commercial, and residential sources that genera te emissions. Emissions are calculated and recorded on the countylevel. For the 2011 NEI, the EPA developed em ission estimates for many nonpoint sectors in collaboration with a consortium of state and regional planning organizations called the Eastern Regional Technical Advisory Committee (ERTAC, http://www.ertac.us /). This task is referred to by ERTAC as the “Area Source Comparability” project on the ERTAC webs ite, and a subgroup was developed to work on this project. The purpose of the subgroup and project was to agree on methodologies, emission factors, and SCCs for a number of important nonpoint sectors, allowing EPA to prepare the emissions estimates for all states using the group’s final approaches.

Non-road sources are vehicles that do not normally oper ate on roads or highways and are often referred to as off-road or off-highway vehicles. The non-road sour ce category is composed of a diverse collection of equipment, many of which are powered by diesel e ngines. Non-road emissions sources include, but are not limited to: agricultural equipment, construction a nd mining equipment, lawn and garden equipment, drilling rigs, and CMV. Also, aircraft and railyard em issions used to be included in the nonroad mobile category but are now tracked as point sources. For the 2011 NEI, the EPA developed emission estimates as part of the 2011 NEI. The sections below describe the emissions calculation methods used for the nonroad mobile source subcategories.

Events are generally defined as any non-structural fire that occurs in wild lands. Events include wildfires and prescribed fires. These fires used to be include d within the nonpoint sector but are now calculated and tracked by individual fire.

B. NONPOINT SOURCE EMI SSION ESTIMATION APPROACH

Nonpoint source emissions are typically estimated by multiplying an emission factor by some known indicator of collective activity for each source categor y within the inventory area. An indicator is any parameter associated with the activity level of a s ource that can be correlated with the air pollutant emissions from that source, such as production, number of employees, or population.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 12 In general, one of the following emissions estimati on approaches is used to calculate the area sourceemissions: per capita emission factors, employment-related emission factors, commodity consumptionrelated emission factors, and level of activity based emission factors. The emission factors used were obtained from the EIIP Tech Reports, the Procedures document or the EPA's AP 42 Compilation of Air Pollutant Emission Factors, Fifth Edition, refe rred to as AP 42, and the ERTAC collaboration.

There are several methods for estimating the activity level for a specific area source category. These are: treating area sources as point sources, surveying local activity levels, apportioning national or statewide activity totals to local inventory areas, using population or employment data.

For certain categories, there can be overlap between the point source emissions and the area source emissions calculated with emission factors. The 2011 point source emissions in these categories were identified and were subtracted where appropriate.

C. NONROAD SOURCE EMISSION ESTIMATION APPROACH

Non-highway mobile sources, sometimes referred to as off-road mobile, are those sources that can move but do not use the highway system. The estimation of emissions from mobile sources, like nonpoint sources, involves multiplying an activity level by an emission factor.

The majority of the off-road mobile emissions were estimated by using the EPA's off-road mobile model NONROAD2008a. Direct emissions are generated with this model.

D. EVENT SOURCE EMISSION ESTIMATION APPROACH

For 2011, EPA continues to use the SMARTFIRE2 ( SF2) system to estimate wild land fire emission estimates. The Department did provide EPA with a list of all York County, SC wild land and prescribed fires to improve the quality of the estimates.

III. 2011 NONPOINT SOURCE INVENTORY

The following table summarizes th e average ozone season day emissions for nonpoint sources in the NAA of York County, SC: Table 5: 2011 Actual Nonpoint Source Emissions for NAA of York County, SC

SCC SCC Description NAA

ozone season day NOX NAA

ozone season day VOC 2102001000 Industrial Fuel Combus tion_Anthracite Coal 0.00 0.00

2102002000 Industrial Fuel Combustion_Bituminous/Subbituminous Coal 0.04 0.00

2102004001 Industrial Fuel Combusti on_Distillate Oil_All Boiler Types 0.00 0.00

2102004002 Industrial Fuel Combustion_Dis tillate Oil_All IC Engine Types 0.10 0.01

2102005000 Industrial Fuel Combustion_Residual Oil_All Boiler Types 0.01 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 13

SCC SCC Description NAA

ozone season day NOX NAA

ozone season day VOC 2102006000 Industrial Fuel Combustion_NG_Boilers and IC Engines 0.03 0.00 2102007000 Industrial Fuel Combustion_LPG_All Boiler Types 0.00 0.00 2102008000 Industrial Fuel Combustion_Wood 0.26 0.02 2102011000 Industrial Fuel Combustion_Kerosene 0.00 0.00

2103001000 Commercial/Institutional Fuel Combustion_Anthracite Coal 0.00 0.00

2103002000 Commercial/Institutional Fuel Combustion_Bituminous/Subbituminous Coal 0.00 0.00

2103004001 Commercial/Institutional Fuel Combustion_Distillate Oil_All Boilers 0.00 0.00

2103004002 Commercial/Institutional Fuel Combustion_Distillate Oil__IC Engines 0.01 0.00 2103005000 Commercial/Institutional Fuel Combustion_Residual Oil 0.00 0.00

2103006000 Commercial/Institutional Fuel Combustion_NG__Boilers and IC Engines 0.09 0.00

2103007000 Commercial/Institutional Fuel Combustion_LPG__ All Combustor Types 0.00 0.00 2103008000 Commercial/Ins titutional Fuel Combustion_Wood 0.01 0.00 2103011000 Commercial/Ins titutional Fuel Combustion_Kerosene 0.00 0.00 2104001000 Residential Fuel Combustion_Anthracite Coal 0.00 0.00

2104002000 Residential Fuel Combustion_Bituminous/Subbituminous Coal 0.00 0.00 2104004000 Residential Fuel Co mbustion_Distillate Oil 0.01 0.00 2104006000 Residential Fuel Combustion_Natural Gas 0.17 0.01 2104007000 Residential Fuel Combustion_LPG 0.02 0.00 2104008100 Residential Wood Combus tion_Fireplace: general 0.00 0.02

2104008210 Residential Wood Combustion_fireplace inserts; non-EPA certified 0.01 0.12

2104008220 Residential Wood Combustion_fireplace inserts; EPA certified; non-catalytic 0.00 0.01

2104008230 Residential Wood Combustion_Woodstove: fireplace inserts; EPA certified; catalytic 0.00 0.00

2104008310 Residential Wood Combustion_Woodstove: freestanding, non-EPA certified 0.00 0.05

2104008320 Residential Wood Combustion_Woodstove: freestanding, EPA certified, non-catalytic 0.00 0.00

2104008330 Residential Wood Combustion_Woodstove: freestanding, EPA certified, catalytic 0.00 0.00 2104008400 Residential Wood Combusti on_Woodstove: pellet-fired 0.00 0.00 2104008610 Residential Wood Combustion_Hydronic heater: outdoor 0.00 0.00

2104008700 Residential Wood Combustion_Outdoor wood burning device, NEC (fire-pits, chimeneas, etc) 0.00 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 14

SCC SCC Description NAA

ozone season day NOX NAA

ozone season day VOC 2104009000 Residential Wood Combustion_Firelog 0.00 0.01 2104011000 Residential Fuel Combustion_Kerosene 0.00 0.00

2302002100 Commercial Cooking - Charbroiling_Conveyorized Charbroiling 0.00 0.00

2302002200 Commercial Cooking - Charbroiling_Under-fired Charbroiling 0.00 0.01 2302003000 Commercial Cooking - Frying_Deep Fat Fying 0.00 0.00 2302003100 Commercial Cooking - Frying_Flat Griddle Frying 0.00 0.00 2302003200 Commercial Cooking - Frying_Clamshell Griddle Frying 0.00 0.00 2401001000 Architectural Coati ngs_Surface Coating 0.00 0.57 2401005000 Auto Refinishing: SI C 7532_Surface Coating 0.00 0.10 2401008000 Traffic Markings _Surface Coating 0.00 0.00

2401015000 Factory Finished Wood: SIC 2426 thru 242_Surface Coating 0.00 0.00 2401020000 Wood Furniture: SIC 25_Surface Coating 0.00 0.01 2401025000 Metal Furniture: SI C 25_Surface Coating 0.00 0.00 2401030000 Paper: SIC 26_S urface Coating 0.00 0.00 2401055000 Machinery and Equipment: SIC 35_Surface Coating 0.00 0.03 2401060000 Large Appliances: SI C 363_Surface Coating 0.00 0.00

2401065000 Electronic and Other Electrical: SIC 36 - 363_Surface Coating 0.00 0.00 2401070000 Motor Vehicles: SIC 371_Surface Coating 0.00 0.28 2401090000 Miscellaneous Manufactur ing_Surface Coating 0.00 0.00 2401100000 Industrial Main tenance Coatings_Surface Coating 0.00 0.15 2401200000 Other Special Purpose Co atings_Surface Coating 0.00 0.02 2415000000 All Processes/All I ndustries_Degreasing 0.00 0.29 2420000000 All Processes_D ry Cleaning 0.00 0.01 2425000000 All Processes_G raphic Arts 0.00 0.06 2460100000 All Personal Care Products _Consumer and Commercial 0.00 0.46 2460200000 All Household Products_C onsumer and Commercial 0.00 0.44

2460400000 All Automotive Aftermar ket Products_Consumer and Commercial 0.00 0.33

2460500000 All Coatings and Relate d Products_Consumer and Commercial 0.00 0.23 2460600000 All Adhesives and Sealants _Consumer and Commercial 0.00 0.14 2460800000 All FIFRA Related Products _Consumer and Commercial 0.00 0.43

2460900000 Misc Products (Not Otherwi se Covered)_Consumer and Commercial 0.00 0.02 2461850000 Pesticide Application: Agricultural_Commercial 0.00 0.06 2501011011 Residential Portable Gas Cans_Permeation 0.00 0.12

2501011012 Residential Portable Gas Cans_Evaporation (includes Diurnal losses) 0.00 0.23Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 15

SCC SCC Description NAA

ozone season day NOX NAA

ozone season day VOC 2501011013 Residential Port able Gas Cans_Spillage During Transport 0.00 0.02

2501011014 Residential Portable Gas Cans_Refilling at the Pump - Vapor Displacement 0.00 0.01

2501011015 Residential Portable Gas Cans_Refilling at the Pump - Spillage 0.00 0.00 2501012011 Commercial Portable Gas Cans_Permeation 0.00 0.00

2501012012 Commercial Portable Gas Cans_Evaporation (includes Diurnal losses) 0.00 0.01

2501012013 Commercial Portable Gas Cans_Spillage During Transport 0.00 0.02

2501012014 Commercial Portable Gas Cans_Refilling at the Pump - Vapor Displacement 0.00 0.02

2501012015 Commercial Portable Gas Cans_Refilling at the Pump - Spillage 0.00 0.00 2501050120 Bulk Terminals: All Ev aporative Losses_Gasoline 0.00 0.03 2501055120 Bulk Plants: All Eva porative Losses_Gasoline 0.00 0.01 2501060051 Gasoline Service Stations_S tage 1: Submerged Filling 0.00 0.00 2501060052 Gasoline Service Stations_S tage 1: Splash Filling 0.00 1.68

2501060053 Gasoline Service Stations_Sta ge 1: Balanced Submerged Filling 0.00 0.00 2501060100 Gasoline Service Stations_Stage 2: Total 0.00 0.32

2501060201 Gasoline Service Stations_Underground Tank: Breathing and Emptying 0.00 0.11 2501070100 Diesel Service Stati ons_Stage 2: Total 0.00 0.02 2501080050 Airports : Aviation Gasoline_Stage 1: Total 0.00 0.02 2501080100 Airports : Aviation Gasoline_Stage 2: Total 0.00 0.00 2505030120 Truck Transport_Gasoline 0.00 0.01 2505040120 Pipeline Transport_Gasoline 0.00 0.03 2610000100 Open Burning_Yard Waste - Leaf Species Unspecified 0.00 0.01 2610000400 Open Burning_Yard Waste - Brush Species Unspecified 0.00 0.00 2610000500 Open Burning_Land Clearing Debris 0.12 0.28 2610030000 Open Burning_Household Waste 0.03 0.05 2630020000 Public Owned_Wastewater Treatment 0.00 0.01

2801500000 Agricultural Field Burning _Unspecified crop type and Burn Method 0.00 0.01 2810060100 Cremation_Humans 0.00 0.00 GRAND TOTAL 0.93 6.93Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 16 A. NONPOINT CATEGORY METHODOLOGIES

A.1 Bulk Gasoline Terminals

Due to resource constraints at EPA, 2011 emissions are assumed to be the same as 2008 emissions. This category includes VOC emissions from bulk plants and bulk terminals. The Department did identify Point source emissions for this category and subtracted the point emissions from the nonpoint emissions. This ensured that the nonpoint emissions were not do uble counted. Detailed documentation for EPA’s 2008 NEI can be found at http://www.epa.gov/ttn/chief/net/2008inventory.html

A.2 Commercial Cooking

Commercial cooking refers to the cooking of meat , including steak, hamburger, poultry, pork, and seafood, and French fries on five different cooking de vices: chain-driven (conveyorized) charbroilers, underfired charbroilers, deep-fat fryers, flat griddl es, and clamshell griddles. The York County, SC inventory includes VOC emissions from the following categories:

Table 6: Source Classification Codes used in the Commercial Cooking sector

2302002100 Commercial Cooking Industrial Processes Food and Kindred Products: SIC 20 Commercial Cooking - Charbroiling Conveyorized Charbroiling 2302002200 Commercial Cooking Industrial Processes Food and Kindred Products: SIC 20 Commercial Cooking - Charbroiling Under-fired Charbroiling 2302003100 Commercial Cooking Industrial Processes Food and Kindred Products: SIC 20 Commercial Cooking - Frying Flat Griddle Frying 2302003000 Commercial Cooking Industrial Processes Food and Kindred Products: SIC 20 Commercial Cooking - Frying Deep Fat Frying 2302003200 Commercial Cooking Industrial Processes Food and Kindred Products: SIC 20 Commercial Cooking - Frying Clamshell Griddle Frying

The approach to estimating emissions from commercial cooking in 2011 consists of three general steps, as follows: - Determine county-level activity, i.e., the num ber of restaurants in each county in 2011;
- Determine the fraction of restaurants with commerc ial cooking equipment, the average number of units of each type of equipment per restaurant, and the average amount of food cooked on each type of equipment; and - Apply emission factors to each type of food for each type of commercial cooking equipment.

Data on the number of restaurants in each county ar e available from the U.S. Census Bureau County Business Patterns database, which reports the num ber of full-service restaurants (NAICS 722110) and limited-service restaurants (722211) in each county. Th e 2002 NEI, which is the most recent inventory in which the emissions from commercial cooking were estim ated using restaurant-level data, rather than population data, used the Dun and Bradstreet industry database, which contains more specific information on the type of restaurant in each county. The documentation from the 2002 NEI identifies five specific categories of restaurants that are likely to have the equipment that matches the source categories for commercial cooking emissions, including: Ethnic food restaurants, Fast food restaurants, Family restaurants, Seafood restaurants, and Steak & Barbecue restaurants. Because Dun and Bradstreet data for 2011 were not readily available, the number of restaura nts had to be estimated using the 2002 data. Using the estimated number of restaurants in 2002, the number of restaurants in 2011 was determined byEmissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 17 employing a growth factor based on the change in the number of restaurants between 2002 and 2011 as determined by the U.S. Census Bureau County Business Statistics Database.

Emission factors for each pollutant for each type of commercial cooking equipment came from the 2002 NEI documentation. This information remains the most complete catalog of emission factors for commercial cooking. The fraction of restaurants w ith commercial cooking equipment and the average units of equipment per restaurant were obtained.

A.3 Fuel Combustion – Industrial Boilers, ICEs

This category contains industrial boiler emissions from bituminous/subbituminous coal, distillate oil, residual oil, natural gas, wood, and kerosene. Li quid petroleum gas emissions are all assumed to be accounted for in the point source inventory. This category includes boilers, ICE, including reciprocating and turbines, industrial space heaters and orchard heaters (nonpoint) firing any type of fuel. The Department did identify point source fuel consumptions for this category and subtracted it from the total county level fuel consumption. The county level fuel consumption, minus point source contribution, was used to estimate the emissions for this category.

The EPA approach used in calculating emissions for i ndustrial fuel combustion is to first develop statelevel fuel consumption estimates, then to allocate th ese to the county-level, and then to multiply the resulting county-level consumption estimates by appropriate emission factors.

Total state-level industrial sector energy consumpti on data are available from the EIA’s State Energy Data System (SEDS), and were used for most sour ce categories. In calculating the emission activity for industrial fuel combustion, EPA excluded all SEDS fuel types for which EIA assumes 100 percent of consumption is non-fuel use. For fuel types for whic h non-fuel use occurs, but is less than 100 percent, EPA reviewed two information sources to identify the non -fuel use percentage to apply in the NEI: EIA’s 2002 Manufacturing Energy Consumption Survey (MECS) and EIA’s GHG emissi ons inventory for 2005. Further adjustments were made to the SEDS data fo r the coal and LPG sectors, and a separate EIA data source, Fuel Oil and Kerosene Sale s, was used for distillate oil. These adjustments were necessary in order to avoid double counting between the point, nonr oad, and nonpoint inventories. For example, coal consumed by coke plants is accounted for in the point source inventory, so when estimating nonpoint emissions, this consumption should be removed. Simi larly, for distillate oil and LPG, the SEDS data includes consumption estimates for equipment that EPA includes in the nonroad sector inventory. Therefore, the SEDS data should be adjusted so that these emissions are not double counted. More details on these adjustments can be found in the documentation given in: ftp://ftp.epa.gov/EmisI nventory/2011nei/doc/

Year 2009 SEDS data were used to estimate 2011 emissions because these were the most recent consumption data available at the time this work was performed in 2012. County-level activity estimates were developed by allocating the state-level adju sted EIA data. To do this, the EPA compiled 2009 estimates of manufacturing sector employment from the Bureau of Census’ County Business Patterns 2009 for use in this procedure. We allocated state-le vel industrial fuel combustion by fuel type to each county using the ratio of the number of manufacturing sector (NAICS codes 31-33) employees in each county to the total number of manufacturing sector employees in the state. A separate document describes how withheld County Business Patterns employment data were estimated.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 18 A.4 Fuel Combustion – Commercial/Institutional

This section includes the description of five EIS sectors: Fuel Comb – Commercial/Institutional Boilers, ICEs - Coal Fuel Comb - Commercial/Institutional Boilers, ICEs – Oil Fuel Comb - Commercial/Institutional Boilers, ICEs - Natural Gas Fuel Comb - Commercial/Institutional Boilers, ICEs – Biomass Fuel Comb - Commercial/Institutional Boilers, ICEs – Other

They are treated here in a single section because th e methods used are the same across all sectors.

These five sectors are defined by the point sour ce SCCs beginning with 103, 105 and 2030 and the nonpoint SCCs starting with 2103. These SCCs include boilers, ICE, including reciprocating and turbines, and space heaters. The primary fuels used by the boilers are coal, oil, and natural gas. Other fuels used by commercial/institutional boilers include biomass, wa ste products, and process gases. The primary fuels used by the ICE are natural gas and oil, but there are some which use various available process gases and LPG. The SCC-based EIS sector definitions will cause a di fferent universe of units to be included in these sectors than would other definitions of boilers, turbines, or reciprocating internal combustion engines. For example, the Industrial/Commercial/Institutional Bo ilers and Process Heaters MACT include 25 MW and smaller boilers used to generate electricity; these boi lers are not included in the sectors described here because they may have SCCs beginning with 101.

The approach in calculating nonpoint emissions for commercial/institutional fuel combustion is to first develop state-level fuel consumption estimates, then to allocate these to the county-level, and then to multiply the resulting county-level consumption estimates by appropriate emission factors. Total state-level commercial sector energy consumption data are available from the EIA’s SEDS, and were used for most source categories. Several adjustments were made to the SEDS data. These adjustments were necess ary in order to avoid double counting between the nonroad and nonpoint inventories. Furthermore, for the coal sector, SEDS data do not provide coal consumption estimates by type of coal (i.e., anthracite vers us bituminous/subbituminous), and this level of data is needed because of differing emission factors for these coal types. For LPG and distillate oil, the SEDS data includes consumption estimates for equipment that EPA includes in the nonroad sector inventory. Therefore, the SEDS data should be adjusted so that these emissions are not double counted.

To estimate the volume of commercial/institutional sect or LPG consumption that should not be included in the nonpoint source inventory, EPA subtracted 18 percent from each state’s commercial sector LPG consumption estimate reported in SEDS. EPA ran the NMIM, which uses the NONROAD2008a model, for 2006 and calculated the national volume of nonr oad LPG consumption from commercial sector source categories. This estimate was then divided into the SEDS total commercial sector LPG consumption estimate to yield the proportion of total commercial/i nstitutional sector LPG consumption attributable to the nonroad sector in that year (approximately 18 per cent). To avoid double-counting of distillate oil consumption between the nonpoint a nd nonroad sector emission inventor ies, EPA relied on a source other than SEDS to estimate consumption. The approach u ses more detailed distillate oil consumption estimates reported in EIA’s Fuel Oil and Kerosene Sales , and assumptions from the regulatory impact analysis (RIA) for EPA’s nonroad diesel emissions rulemaking. Table 7 displays the assumptions that were applied to the state-level distillate oil consumption estimates reported in Fuel Oil and Kerosene Sales to estimate total stationary source commercial/institutiona l sector consumption. The percentages shown in Table 7 come from page 7-8 of EPA’s RIA for the no nroad diesel emissions rulemaking. More details onEmissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 19 these adjustments can be found in the documentation given in ftp://ftp.epa.gov/EmisI nventory/2011nei/doc/

Year 2009 SEDS data were used to estimate 2011 emissions because these we re the latest year consumption data available at the tim e this work was performed in 2012.

Table 7: Assumptions Used to Estimate Commer cial/Institutional Sector Stationary Source Distillate Fuel Consumption

Sector Distillate Fuel Type Percent (%) of Total Consumption from Stationary Sources Commercial No. 1 Distillate Fuel Oil 80

No. 2 Distillate Fuel Oil 100 No. 2 Distillate/Ultra-Low, Low, and High Sulfur Diesel 0 a

No. 4 Distillate Fuel Oil 100 a. A very small portion of total commercial/instituti onal diesel is consumed by point sources (SCC 203001xx).

Year 2009 county-level activity estimat es were developed by allocating the state-level activity resulting from the adjustments to the SEDS data describ ed above. The EPA compiled 2006 estimates of commercial sector (NAICS codes 42 through 81) employment from the Bureau of Census’ County Business Patterns 2009 for use in this procedure. A sepa rate document describes how withheld County Business Patterns employment data were estimated. The EPA al so developed 2006 county-level estimates of institutional sector (NAICS code 92) employment from 2007 local government employment data in the 2007 Census of Governments and adjustments reflecting each state’s 2006/2007 local government employment ratio. State-level commercial/institutional fu el combustion by fuel type was allocated to each county using the ratio of the number of commercia l/institutional sector employees in each county to the total number of commercial/institutional sector employees in the state.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 20 A.5 Fuel Combustion – Residential – Natural Gas, Oil, and Other

Table 8 shows the SCCs used in the 2011 NEI from the sectors: “Fuel Comb - Residential – Other,” “Fuel Comb - Residential – Oil,” and “Fuel Comb - Residential - Natural Gas.” EPA estimates emission for all SCCs other than SCC=2104005000 and SCC=2104006010. Table 8: SCCs in the Residential Fuel Combustion Sectors (except Wood) in the 2011 NEI

SCC SCC Level Three SCC Level Four EI Sector 2104001000 Anthracite Coal Total: All Combustor Types Fuel Comb - Residential - Other 2104002000 Bituminous/Subbituminous Coal Total: All Combustor Types Fuel Comb - Residential - Other 2104004000 Distillate Oil Total: All Combustor Types Fuel Comb - Residential - Oil

2104005000 Residual Oil Total: All Combustor Types Fuel Comb - Residential - Oil

2104006000 Natural Gas Total: All Combustor Types Fuel Comb - Residential - Natural Gas 2104006010 Natural Gas Residential Furnaces Fuel Comb - Residential - Natural Gas 2104007000 Liquefied Petroleum Gas (LPG) Total: All Combustor Types Fuel Comb - Residential - Other 2104011000 Kerosene Total: All Heater Types Fuel Comb - Residential - Oil

The approach in calculating nonpoint emissions for commercial/institutional fuel combustion is to first develop state-level fuel consumption estimates, then to allocate these to the county-level, and then to multiply the resulting county-level consumption estimates by appropriate emission factors. Total state-level residential sector energy consumpti on data are available from the EIA’s SEDS, and were used for most source categories. Several adjustme nts were made to the SEDS data. These adjustments were necessary in order to avoid double counting between the nonroad and nonpoint inventories.

A.6 Fuel Combustion – Residential – Wood

This source category includes residential wood burning devices such as fireplaces, fireplaces with inserts (inserts), free standing woodstoves, pellet stoves, outdoor hydronic heaters (also know as outdoor wood boilers), indoor furnaces, and outdoo r burning in fire-pits and chimenea s. We further differentiate free standing woodstoves and inserts into three categori es: conventional (not EPA certified); EPA certified, catalytic; and EPA certified, noncatalytic. Generally speaking, the conventional units were constructed prior to 1988. Units constructed after 1988 had to meet EPA emission standards and they are either catalytic or non-catalytic. Table 9 shows the SCCs used in the 2011 NEI from in this sector.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 21 Table 9: SCCs in the Residential Wood Combustion Sector in the 2011 NEI

SCC SCC Level Three* SCC Level Four 2104008100 Wood Fireplace: general 2104008210 Wood Woodstove: fireplace inserts; non-EPA certified 2104008220 Wood Woodstove: fireplace inserts; EPA certified; non-catalytic 2104008230 Wood Woodstove: fireplace inserts; EPA certified; catalytic 2104008300 Wood Woodstove: freestanding, general 2104008310 Wood Woodstove: freestanding, nonEPA certified 2104008320 Wood Woodstove: freestanding, EPA certified, non-catalytic 2104008330 Wood Woodstove: freestanding, EPA certified, catalytic 2104008400 Wood Woodstove: pellet-fired, general (freestanding or FP insert) 2104008510 Wood Furnace: Indoor, cordwood-fired, non-EPA certified 2104008610 Wood Hydronic heater: outdoor 2104008700 Wood Outdoor wood burning device, NEC (fire-pits, chimeneas, etc) 2104009000 Firelog Total: All Combustor Types

* SCC Level One is “Stationary Source Fuel Com bustion” and SCC Level Two is “Residential”

Emission estimates were developed using a tool in Microsoft® Access®, developed by EPA. This tool computes county- and SCC-level emissions of criteri a and HAPs for the entire country. EPA updated the inputs to the tool for the 2011 NEI in partnership with ERTAC. For the 2011 inventory, the appliance profiles were updated using the newest American Housing Survey results.

The emissions from residential wood combusti on are calculated using the equation below:

Ey = u × EFy × CFy where: E y = annual emissions (tons/yr) for a specific appliance (SCC) Annual activity (tons of fuel burned) EF y = emission factor (tons of pollutant emitted/ mass of fuel used) CF y = control factor

y is a specific pollutant

A.7 Gas Stations

Gas Station emissions consist of estimates from St age 1 gasoline distribution from service station unloading and from Stage 1 gasoline distribution from underground storage tanks. Emission factors and equations used to calculate these emissions came from the EPA’s AP-42. The York County, SC 2011 estimates were calculated by EPA. There are no gas stations that are point sources, so no point source subtraction was required.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 22 A.8 Solvent – Consumer & Commercial Solvent Use

This category includes only non-industrial solvents that are used in commercial or consumer applications. The solvent containing products consist of a di verse grouping, e.g. personal care products, household products, automotive aftermarket products, adhesives a nd sealants, pesticides, some coatings, and other commercial and consumer products that may emit VOCs . VOC emissions for this category is estimated by using an agreed upon emission factor during th e ERTAC collaboration with EPA. York County, SC 2011 emission estimates came from the EPA 2011 NE I v1, with no changes by the Department.

A.9 Solvent – Degreasing, Dry Cleaning, and Graphic Arts

Degreasing operations occur frequently in small shops , such as auto repair, painting operations, etc. Solvents, which can emit VOC, are ofte n used to remove grease from a surface.

Graphic arts include operations that are involved in printing of newspapers, magazines, books, and other printed materials, which can be divided into several subsets based upon printing technology. Over the last decade ink-jet and offset lithography have emerged as the dominant technologies. The use of oils as ink solvents and the reduction of alcohols in the fountai n solution and in the cleanup solutions have resulted in notable reductions in emissions for offset lit hography. Ink-jet printing results in essentially no VOC emissions.

Dry cleaners are sources that launder clothing using solvents, some emitting VOC as a result. The VOC emissions from dry cleaning vary with the type of process and the solvent used. For the most part, dry cleaners (coin-op and conventional) are small busines s entities. As a result of their size, dry cleaning emissions are not captured as point sources.

An employee based emission factor was used for these categories. The emission estimates generated by the joint effort of ERTAC and EPA, were used in the 2011 NEI v1 and were also accepted for York County, SC. It is possible to have some overlap w ith point sources with these three categories, but that was not the case for York Co, SC and no point source subtr actions were made.

A.10 Solvent – Industrial and Non-Industrial Surface Coating

These categories include a list of similar operations th at involve applying a coating to a surface, which may emit VOC. The following is a list of surface coat ing operations that were calculated for York County, SC in the 2011 NEI v1:

Architectural Coatings Auto Refinishing: SIC 7532 Traffic Markings Factory Finished Wood: SIC 2426 Wood Furniture: SIC25 Metal Furniture: SIC 25 Machinery and Equipment: SIC 35 Large Appliances: SIC 363 Motor Vehicles: SIC 371 Industrial Maintenance Coatings Other Special Purpose CoatingsEmissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 23 An employee based emission factor was used for these categories. The emission estimates generated by the joint collaboration of ERTAC and EPA, were used in the 2011 NEI v1 and were also accepted for York County, SC. It is possible to have some overl ap with point sources with these three categories, but that was not the case for York Co, SC and no point source subtractions were made.

A.11 Open Burning

Open burning includes the outdoor combustion of yard waste, household waste, and land clearing debris. These fires result in the emission of NO x and VOC. The emission estimates generated by EPA in the 2011 NEIv1 were accepted for York County, SC. More detailed description of how these emissions were calculated should be available in the final draft of the 2011 NEI Technical Support Document.

A.12 Portable Gas Cans

PFCs cover emissions from residential and commercial sector portable gasoline containers. Permeation, diurnal, transport, spillage, and vapor displacement em issions are typically accounted for in this category.

The emission estimates generated by the joint effort of ERTAC and EPA, were used in the 2011 NEI v1 and were also accepted for York County, SC. More detailed description of how these emissions were calculated should be available in the final draft of the 2011 NEI Technical Support Document.

B. NON-POINT AVERAGE SUMMER DAY EMISSIONS ESTIMATE

The Department does not have ozone season emissions data for the NAA of York, County, SC, so the whole York County, SC annual emissions from the EP A’s 2011 NEI v1 was used as the starting point. The next step was to allocate the annual emissions down to an average ozone season day. No known allocation factors were available to do this so the annual emissions were allocated down to an average daily value by dividing by 365 (the number of days in the year 2011). The resulting average daily value was assumed to be an average ozone season daily value.

Now that the average ozone season daily emissions fo r the whole York County, SC are determined, the emissions were allocated to the NAA only portion of the county. For nonpoint sources, the Department decided that using human population was the best indi cator of where these emissions may be occurring in the county. Therefore, the 2010 census tract data was obtained and a ratio of 0.7836 was calculated (78.36% of human population in York County, SC is found in the NAA). This ratio is almost identical to the ratio used in previous SIP/Conformity documen ts. The whole county ozone season daily emissions were multiplied by this ratio to estimate the averag e ozone season daily emissions for the NAA of York County.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 24 III. 2011 NONROAD SOURCE INVENTORY

Table 10 summarizes the average ozone season day em issions for nonroad sources in the NAA of York County, SC.

Table 10: 2011 Actual Nonroad Source Emissions for NAA of York County, SC

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC 2260001010 Recreational Gasoline, 2-Stroke_Motorcycles 0.00 0.07 2260001030 Recreational Gasoline, 2-St roke_All_Terrain Vehicles 0.00 0.09 2260001060 Recreational Gasoline, 2-Str oke_Specialty_Vehicles/Carts 0.00 0.00

2260002006 Construction and Mining Gasoline, 2- Stroke_Tampers/Rammers 0.00 0.01

2260002009 Construction and Mining G asoline, 2-Stroke_Plate Compactors 0.00 0.00

2260002021 Construction and Mining Gasoline, 2-Stroke_Paving Equipment 0.00 0.00

2260002027 Construction and Mining Gasoline, 2-Stroke_Signal Boards/Light Plants 0.00 0.00

2260002039 Construction and Mining Gasoline, 2- Stroke_Concrete/Industr ial Saws 0.00 0.03

2260002054 Construction and Mining Gasoline, 2- Stroke_Crushing/Processing Equipment 0.00 0.00 2260003030 IndustrialGasoline, 2-St roke_Sweepers/Scrubbers 0.00 0.00

2260003040 IndustrialGasoline, 2-Stroke _Other General Industrial Equipment 0.00 0.00

2260004015 Lawn and Garden Gasoline, 2-Stroke_Rotary Tillers < 6 HP (Residential) 0.00 0.00

2260004016 Lawn and Garden Gasoline, 2-Stroke_Rotary Tillers < 6 HP (Commercial) 0.00 0.00

2260004020 Lawn and Garden Gasoline, 2-Stroke_Chain Saws < 6 HP (Residential) 0.00 0.02

2260004021 Lawn and Garden Gasoline, 2-Stroke_Chain Saws < 6 HP (Commercial) 0.00 0.08

2260004025 Lawn and Garden Gasoline, 2- Stroke_Trimmers/Edgers/Brush Cu tters (Residential) 0.00 0.02

2260004026 Lawn and Garden Gasoline, 2- Stroke_Trimmers/Edgers/Brush Cu tters (Commercial) 0.00 0.04

2260004030 Lawn and Garden Gasoline, 2-Stroke_Leafblowers/Vacuums (Residential) 0.00 0.01Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 25

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC

2260004031 Lawn and Garden Gasoline, 2-Stroke_Leafblowers/Vacuums (Commercial) 0.00 0.04

2260004071 Lawn and Garden Gasoline, 2-Stroke_Turf Equipment (Commercial) 0.00 0.00 2260005035 Agricultural Gasoline, 2-Stroke_Sprayers 0.00 0.00 2260006005 Commercial Gasoline, 2-St roke_Generator Sets 0.00 0.00 2260006010 Commercial Gasoline, 2-Stroke_Pumps 0.00 0.01 2260006015 Commercial Gasoline, 2-St roke_Air Compressors 0.00 0.00 2260006035 Commercial Gasoline, 2-Stroke_Hydro-power Units 0.00 0.00 2260007005 Logging Gasoline, 2-Stroke_Chain Saws : 6 HP 0.00 0.01 2265001010 Recreational Gasoline, 4-St roke_Motorcycles: Off-road 0.00 0.00 2265001030 Recreational Gasoline, 4-St roke_All Terrain Vehicles 0.00 0.04 2265001050 Recreational Gasoline, 4-Stroke_Golf Carts 0.00 0.01 2265001060 Recreational Gasoline, 4-Str oke_Specialty Vehicles/Carts 0.00 0.00 2265002003 Construction and Mining G asoline, 4-Stroke_Pavers 0.00 0.00

2265002006 Construction and Mining Gasoline, 4- Stroke_Tampers/Rammers 0.00 0.00

2265002009 Construction and Mining G asoline, 4-Stroke_Plate Compactors 0.00 0.00 2265002015 Construction and Mining G asoline, 4-Stroke_Rollers 0.00 0.00

2265002021 Construction and Mining Gasoline, 4-Stroke_Paving Equipment 0.00 0.00

2265002024 Construction and Mining Gasoline, 4-Stroke_Surfacing Equipment 0.00 0.00

2265002027 Construction and Mining Gasoline, 4-Stroke_Signal Boards/Light Plants 0.00 0.00 2265002030 Construction and Mining Gaso line, 4-Stroke_Trenchers 0.00 0.00

2265002033 Construction and Mining Gasoline, 4-Stroke_Bore/Drill Rigs 0.00 0.00

2265002039 Construction and Mining Gasoline, 4-Stroke_ Concrete/Industrial Saws 0.00 0.00

2265002042 Construction and Mining Gaso line, 4-Stroke_Cement and Mortar Mixers 0.00 0.01 2265002045 Construction and Mining G asoline, 4-Stroke_Cranes 0.00 0.00

2265002054 Construction and Mining Gasoline, 4- Stroke_Crushing/Processing Equipment 0.00 0.00

2265002057 Construction and Mining Gaso line, 4-Stroke_Rough Terrain Forklifts 0.00 0.00

2265002060 Construction and Mining Gaso line, 4-Stroke_Rubber Tire Loaders 0.00 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 26

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC

2265002066 Construction and Mining Gasoline, 4-Stroke_ Tractors/Loaders/Backhoes 0.00 0.00

2265002072 Construction and Mining Gasoline, 4-Stroke_Skid Steer Loaders 0.00 0.00

2265002078 Construction and Mining Gasoline, 4-Stroke_ Dumpers/Tenders 0.00 0.00

2265002081 Construction and Mining Gasoline, 4-Stroke_Other Construction Equipment 0.00 0.00 2265003010 Industrial Gasoline, 4-Stroke_Aerial Lifts 0.00 0.00 2265003020 Industrial Gasoline, 4-Stroke_Forklifts 0.00 0.00 2265003030 Industrial Gasoline, 4-St roke_Sweepers/Scrubbers 0.00 0.00

2265003040 Industrial Gasoline, 4-Stroke _Other General Industrial Equipment 0.00 0.00

2265003050 Industrial Gasoline, 4-Stroke_Other Material Handling Equipment 0.00 0.00 2265003060 Industrial Gasoline, 4- Stroke_AC\Refrigeration 0.00 0.00 2265003070 Industrial Gasoline, 4-Stroke_Terminal Tractors 0.00 0.00

2265004010 Lawn and Garden Gasoline, 4-Stroke_Lawn Mowers (Residential) 0.01 0.10

2265004011 Lawn and Garden Gasoline, 4-Stroke_Lawn Mowers (Commercial) 0.01 0.04

2265004015 Lawn and Garden Gasoline, 4-Stroke_Rotary Tillers < 6 HP (Residential) 0.00 0.01

2265004016 Lawn and Garden Gasoline, 4-Stroke_Rotary Tillers < 6 HP (Commercial) 0.00 0.03

2265004025 Lawn and Garden Gasoline, 4- Stroke_Trimmers/Edgers/Brush Cu tters (Residential) 0.00 0.00

2265004026 Lawn and Garden Gasoline, 4-Stroke Trimmers/Edgers/Brush Cutters (Commercial) 0.00 0.00

2265004030 Lawn and Garden Gasoline, 4-Stroke Leafblowers/Vacuums (Residential) 0.00 0.00

2265004031 Lawn and Garden Gasoline, 4-Stroke Leafblowers/Vacuums (Commercial) 0.01 0.02

2265004040 Lawn and Garden Gasoline, 4-Stroke Rear Engine Riding Mowers (Residential) 0.00 0.01

2265004041 Lawn and Garden Gasoline, 4-Stroke Rear Engine Riding Mowers (Commercial) 0.00 0.00

2265004046 Lawn and Garden Gasoline, 4-Stroke Front Mowers (Commercial) 0.00 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 27

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC

2265004051 Lawn and Garden Gasoline, 4-Stroke Shredders < 6 HP (Commercial) 0.00 0.00

2265004055 Lawn and Garden Gasoline, 4-Stroke Lawn and Garden Tractors (Residential) 0.02 0.11

2265004056 Lawn and Garden Gasoline, 4-Stroke Lawn and Garden Tractors (Commercial) 0.01 0.03

2265004066 Lawn and Garden Gasoline, 4-Stroke Chippers/Stump Grinders (Commercial) 0.00 0.00

2265004071 Lawn and Garden Gasoline, 4-Stroke Turf Equipment (Commercial) 0.03 0.09

2265004075 Lawn and Garden Gasoline, 4-Stroke Other Lawn and Garden Equipment (Residential) 0.00 0.01

2265004076 Lawn and Garden Gasoline, 4-Stroke Other Lawn and Garden Equipment (Commercial) 0.00 0.01 2265005010 Agricultural Gasoline, 4-Stroke_2-Wheel Tractors 0.00 0.00 2265005015 Agricultural Gasoline, 4-Stroke_Agricultural Tractors 0.00 0.00 2265005020 Agricultural Gasoline, 4-Stroke_Combines 0.00 0.00 2265005025 Agricultural Gasoline, 4-Stroke_Balers 0.00 0.00 2265005030 Agricultural Gasoline, 4-St roke_Agricultural Mowers 0.00 0.00 2265005035 Agricultural Gasoline, 4-Stroke_Sprayers 0.00 0.00 2265005040 Agricultural Gasoline, 4- Stroke_Tillers : 6 HP 0.00 0.00 2265005045 Agricultural Gasoline, 4-Stroke_Swathers 0.00 0.00

2265005055 Agricultural Gasoline, 4-Stroke_Other Agricultural Equipment 0.00 0.00 2265005060 Agricultural Gasoline, 4- Stroke_Irrigation Sets 0.00 0.00 2265006005 Commercial Gasoline, 4-St roke_Generator Sets 0.02 0.08 2265006010 Commercial Gasoline, 4-Stroke_Pumps 0.01 0.02 2265006015 Commercial Gasoline, 4-St roke_Air Compressors 0.00 0.01 2265006025 Commercial Gasoline, 4-Stroke_Welders 0.01 0.01 2265006030 Commercial Gasoline, 4-St roke_Pressure Washers 0.01 0.04 2265006035 Commercial Gasoline, 4-Stroke_Hydro-power Units 0.00 0.00 2265007010 Logging Gasoline, 4-Stroke_Shredders : 6 HP 0.00 0.00

2265007015 Logging Gasoline, 4-Stroke_Forest Equipment - Feller/Bunch/Skidder 0.00 0.00 2265010010 Industrial Gasoline, 4-Stroke Other Oil Field Equipment 0.00 0.00 2267001060 Recreational_LPG_Specialty Vehicles/Carts 0.00 0.00 2267002003 Construction and Mining _LPG_Pavers 0.00 0.00
2267002015 Construction and Mini ng _LPG_Rollers 0.00 0.00 2267002021 Construction and Mining _LPG_Paving Equipment 0.00 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 28

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC 2267002024 Construction and Mining_ LPG_Surfacing Equipment 0.00 0.00
2267002030 Construction and Mini ng _LPG_Trenchers 0.00 0.00
2267002033 Construction and Mining _LPG_Bore/Drill Rigs 0.00 0.00 2267002039 Construction and Mining _ LPG_Concrete/Industrial Saws 0.00 0.00
2267002045 Construction and Mi ning_ LPG_Cranes 0.00 0.00

2267002054 Construction and Mining _LPG_Crushing/Processing Equipment 0.00 0.00 2267002057 Construction and Mining _ LPG_Rough Terrain Forklifts 0.00 0.00 2267002060 Construction and Mining_ LPG_Rubber Tire Loaders 0.00 0.00 2267002066 Construction and Mining _LPG _Tractors/Loaders/Backhoes 0.00 0.00 2267002072 Construction and Mining _LPG_Skid Steer Loaders 0.00 0.00

2267002081 Construction and Mining _LPG_Other Construction Equipment 0.00 0.00 2267003010 Industrial _LPG_Aerial Lifts 0.00 0.00 2267003020 Industrial_ LPG_Forklifts 0.14 0.04 2267003030 Industrial _LPG_Sw eepers/Scrubbers 0.00 0.00 2267003040 Industrial _LPG_Other Gene ral Industrial Equipment 0.00 0.00 2267003050 Industrial _LPG_Other Mate rial Handling Equipment 0.00 0.00 2267003070 Industrial _LPG_Terminal Tractors 0.00 0.00

2267004066 Lawn and Garden_LPG_Chippers/Stump Grinders (Commercial) 0.00 0.00 2267005055 Agricultural _LPG_Other Agricultural Equipment 0.00 0.00 2267005060 Agricultural_ LPG _Irrigation Sets 0.00 0.00 2267006005 Commercial_ LPG_Generator Sets 0.01 0.00 2267006010 Commercial _LPG_Pumps 0.00 0.00 2267006015 Commercial _LPG_Air Compressors 0.00 0.00 2267006025 Commercial _LPG_Welders 0.00 0.00 2267006030 Commercial _LPG_P ressure Washers 0.00 0.00 2267006035 Commercial_ LPG_Hydro-power Units 0.00 0.00

2268002081 Construction and Mining _CNG_Other Construction Equipment 0.00 0.00 2268003020 Industrial _CNG_Forklifts 0.01 0.00 2268003030 Industrial _CNG_Sw eepers/Scrubbers 0.00 0.00 2268003040 Industrial CNG_Other Gene ral Industrial Equipment 0.00 0.00 2268003060 Industrial CNG_AC/Refrigeration 0.00 0.00 2268003070 Industrial CNG_Terminal Tractors 0.00 0.00 2268005055 Agricultural CNG_Other Agricultural Equipment 0.00 0.00 2268005060 AgriculturalCNG_ Irrigation Sets 0.00 0.00 2268006005 Commercial CNG_Generator Sets 0.00 0.00 2268006010 Commercial CNG_Pumps 0.00 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 29

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC 2268006015 Commercial CNG_Air Compressors 0.00 0.00 2268006020 Commercial CNG_Gas Compressors 0.00 0.00 2268010010 Industrial CNG_Other Oil Field Equipment 0.00 0.00 2270001060 Recreational_Diesel_Speci alty Vehicles/Carts 0.00 0.00
2270002003 Constructi on and Mining _Diesel_Pavers 0.02 0.00
2270002006 Construction a nd Mining _Diesel_Tampers/Rammers 0.00 0.00
2270002009 Construction a nd Mining _Diesel_Plate Compactors 0.00 0.00
2270002015 Construction and Mining _Diesel_Rollers 0.05 0.00
2270002018 Construction and Mining _Diesel_Scrapers 0.06 0.00
2270002021 Construction a nd Mining_ Diesel_Paving Equipment 0.00 0.00 2270002024 Construction and Mining _D iesel_Surfacing Equipment 0.00 0.00 2270002027 Construction and Mining _Diesel _Signal Boards/Light Plants 0.01 0.00
2270002030 Construction and Mining _Diesel_Trenchers 0.03 0.00
2270002033 Construction and Mining_ Diesel_Bore/Drill Rigs 0.03 0.00
2270002036 Construction and Mining _Diesel_Excavators 0.19 0.01
2270002039 Constructi on and Mining_ Diesel_Concrete /Industrial Saws 0.00 0.00 2270002042 Construction and Mining _Diesel _Cement and Mortar Mixers 0.00 0.00
2270002045 Constructi on and Mining _Diesel_Cranes 0.05 0.00
2270002048 Construction and Mining _Diesel_Graders 0.05 0.00 2270002051 Construction and Mining _D iesel_Off-highway Trucks 0.19 0.01

2270002054 Construction and Mining _Diesel_Crushing/Processing Equipment 0.01 0.00 2270002057 Construction and Mining _D iesel_Rough Terrain Forklifts 0.07 0.01 2270002060 Construction and Mining _D iesel_Rubber Tire Loaders 0.25 0.02

2270002066 Construction and Mining _Diesel_Tractors/Loaders/Backhoes 0.18 0.04
2270002069 Constructi on and Mining _Diesel_Crawler Tractor/Dozers 0.21 0.01 2270002072 Construction and Mining _D iesel_Skid Steer Loaders 0.12 0.03 2270002075 Construction and Mining _D iesel_Off-highway Tractors 0.03 0.00
2270002078 Construction a nd Mining _Diesel_Dumpers/Tenders 0.00 0.00

2270002081 Construction and Mining _Diesel_Other Construction Equipment 0.03 0.00 2270003010 Industrial _Diesel _Aerial Lifts 0.00 0.00 2270003020 Industrial_ Di esel_Forklifts 0.04 0.00 2270003030 Industrial_ Diesel_S weepers/Scrubbers 0.02 0.00 2270003040 Industrial_ Diesel_General Industrial Equipment 0.02 0.00 2270003050 Industrial _Diesel_Mater ial Handling Equipment 0.00 0.00 2270003060 Industrial _Diesel_A C/Refrigeration 0.05 0.00 2270003070 Industrial _Diesel_Terminal Tractors 0.02 0.00Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 30

SCC SCC Description NAA

ozone

season day NOX NAA

ozone

season day VOC

2270004031 Lawn and Garden_ Diesel_Leafblowers/Vacuums (Commercial) 0.00 0.00 2270004046 Lawn and Garden _Diesel_Fr ont Mowers (Commercial) 0.02 0.00

2270004056 Lawn and Garden _Diesel_Lawn and Garden Tractors (Commercial) 0.00 0.00

2270004066 Lawn and Garden_ Diesel_Chippers/Stump Grinders (Commercial) 0.02 0.00 2270004071 Lawn and Garden _Diesel_Tu rf Equipment (Commercial) 0.00 0.00

2270004076 Lawn and Garden _Diesel_Other Lawn and Garden Equipment (Commercial) 0.00 0.00 2270005010 Agricultural _Diesel_2-Wheel Tractors 0.00 0.00 2270005015 Agricultural _Diesel_A gricultural Tractors 0.06 0.01 2270005020 Agricultural_ Diesel_Combines 0.01 0.00 2270005025 Agricultural _Diesel_Balers 0.00 0.00 2270005030 Agricultural _Diesel_A gricultural Mowers 0.00 0.00 2270005035 Agricultural _Diesel_Sprayers 0.00 0.00 2270005040 Agricultural _Diesel_Tillers : 6 HP 0.00 0.00 2270005045 Agricultural _Diesel_Swathers 0.00 0.00 2270005055 Agricultural_ Diesel_Other Agricultural Equipment 0.00 0.00 2270005060 Agricultural _Diesel _Irrigation Sets 0.00 0.00 2270006005 Commercial _Diesel_G enerator Sets 0.04 0.01 2270006010 Commercial _D iesel_Pumps 0.01 0.00 2270006015 Commercial _Diesel_Air Compressors 0.02 0.00 2270006025 Commercial _Di esel_Welders 0.01 0.00 2270006030 Commercial _Diesel_P ressure Washers 0.00 0.00 2270006035 Commercial _Diesel_H ydro-power Units 0.00 0.00 2270007015 Logging _Diesel_Forest E qp - Feller/Bunch/Skidder 0.02 0.00 2270010010 Industrial _Diesel_Other Oil Field Equipment 0.00 0.00 2282005010 Gasoline _2-Stroke_Pleasu re Craft_Outboard 0.02 0.27 2282005015 Gasoline _2-Stroke_Pleasure Craft_Personal Water Craft 0.01 0.07 2282010005 Gasoline _4-Stroke_Pleasure Craft_Inboard/Sterndrive 0.02 0.03 2282020005 Diesel_Pleasure Craft_Inboard/Sterndrive 0.02 0.00 2282020010 Diesel _Pleasure Craft_Outboard 0.00 0.00 2285002006 Diesel_Railroad Line Haul Locomotives: Class I 0.22 0.01 2285002007 Diesel_Railroad_Line Haul Locomotives: Class II / III 0.00 0.00 2285002015 Diesel_Railway Maintenance 0.00 0.00 2285004015 Gasoline_4-Stroke_Ra ilway Maintenance 0.00 0.00 2285006015 LPG_Railway Maintenance 0.00 0.00 GRAND TOTAL 2.63 1.78Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 31 Nonroad mobile sources are those sources that can move but do not use the highway system. Examples include lawn mowers, agricultural equipment, constr uction equipment, and powerboats. Most activity was estimated using the EPA's off-road mobile model NONROAD2008a.

EPA created a comprehensive set of mobile source em issions data for criteria pollutants, hazardous air pollutants, and greenhouse gases for all states, Puerto Rico, and US Virgin Islands as a starting point for the NEI. EPA uses models to estimate emissions for most of the mobile sources categories. For development and documentation purposes, the major groups of nonroad mobile sources are commercial marine vessels and nonroad equipment included in the NONROAD 2008a model. For York Co, SC, there are no commercial marine vessels so that category is not found in the inventory.

The nonroad mobile source category includes a diver se collection of equipment such as lawn mowers, chain saws, tractors, all terrain vehicles, fo rk lifts and construction equipment. The EPA NONROAD2008a model generates emissions directly and includes more than 80 different types of equipment.

The NMIM (http://www.epa.gov/otaq/nmim.htm) is EPA ’s consolidated mobile emissions estimation system that allows EPA to produce nonroad mobile em issions in a consistent and automated way for the entire country. EPA encouraged agencies to subm it NMIM inputs to the EIS for the 2011 NEI for inclusion in the NCD. The NCD contains all the county-specific information needed to run NONROAD. It also contains the ratios that are applied to NONROAD outputs to estimate emissions of HAPs, dioxins/furans (not part of the NEI), and some meta ls. The Department did no t have any improved data for the 2011 NONROAD sources, so the EPA genera ted NCD was accepted for use for the 2011 NEI v1 emission estimates.

The Department does not have ozone season emissions data for the NAA of York, County, SC, so the whole York County, SC annual emissions from the EP A’s 2011 NEI v1 was used as the starting point. The next step was to allocate the annual emissions down to an average ozone season day. No known allocation factors were available to do this so the annual emissions were allocated down to an average daily value by dividing by 365 (the number of days in the year 2011). The resulting average daily value was assumed to be an average ozone season daily value.

Now that the average ozone season daily emissions fo r the whole York County, SC are determined, the emissions were allocated to the NAA only portion of the county. For nonroad sources, the Department decided that using human population was the best indi cator of where these emissions may be occurring in the county. Therefore, the 2010 census tract data was obtained and a ratio of 0.7836 was calculated (78.36% of human population in York County, SC is found in the NAA). This ratio is almost identical to the ratio used in previous SIP/Conformity documen ts. The whole county ozone season daily emissions were multiplied by this ratio to estimate the averag e ozone season daily emissions for the NAA of York County.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 32 V. 2011 EVENTS

Table 11 summarizes the average ozone season day em issions for event sources in the NAA of York County, SC.

Table 11: 2011 Actual Event Source Emissions for NAA of York County, SC

SCC SCC Description NAA ozone season day NOX NAA ozone season day VOC 2810001000 Wildfires 0.00 0.02
2811015000 Prescribed Fires 0.04 0.40
GRAND TOTAL 0.04 0.42

Events in 2011 include wild land fires, or WLFs. W LFs are generally defined as any non-structural fire that occurs in wild lands. Included in WLFs are the following types of fires:

Prescribed (Rx) fire: Any fire ignited by manageme nt actions to meet specific objectives, generally related to the reduction of the biomass potentially available for wildfires.
Wildfire (WF): An unplanned, unwanted WLF incl uding unauthorized human-caused fires, escaped prescribed fire projects, or other inadvertent fire s ituations where the objective is to put the fire out.
Wild land Fire Use (WFU): The application of appr opriate management response to naturally-ignited WLFs to accomplish specific resource management objective in pre-designated areas outlined in fire management plans. In other words, an unplanned fire th at is subsequently controlled and used as a Rx fire to meet specific objectives. This category existed in 2008, but no longer is used as a way to classify fires in 2011, and thus will not be di scussed further in this section.

For the dataset developed by EPA for the 2011 NEI, we used the following general equation to estimate wildfires and prescribed fires. Accurate estimates of fi re emissions rely on accurate estimates of the terms in the equation below.

Emissions = Area burned * Fuel Load Available * Fu el Consumed (Burn Efficiency) * Emission Factors

SF2 estimates the “Area burned” term in the above equation, in conjunction with the Bluesky framework model that estimates the last three terms in the above equation. The “fuel load available” term is estimated using the Fuel Characteristic Classification System (FCCS) maps in the Bluesky model. The “fuel consumed” term is estimated from Bluesky using the CONSUME3 model, which predicts the fraction of fuel that burns based on many parameters including fu el moisture. Finally, the “Emission Factors” term is estimated in Bluesky using the Fire Emissions Prediction Simulator which relies on EFs from the literature apportioned by flaming and smoldering com bustion. Since SF2 was recently developed, direct references to its development in conjunction with updated Bluesky methods are not yet available.

York County, SC actual 2011 prescribed fires and w ildfires were obtained from the SC Forestry Commission and were provided to EPA for use in the 2011 NEI calculations.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 33 The Department does not have ozone season emissions data for the NAA of York, County, SC, so the whole York County, SC annual emissions from the EP A’s 2011 NEI v1 was used as the starting point. The next step was to allocate the annual emissions down to an average ozone season day. No known allocation factors were available to do this so the annual emissions were allocated down to an average daily value by dividing by 365 (the number of days in the year 2011). The resulting average daily value was assumed to be an average ozone season daily value.

Now that the average ozone season daily emissions fo r the whole York County, SC are determined, the emissions were allocated to the NAA only portion of the county. For event sources, the Department decided that using land area was the best indicator of where these emissions may be occurring in the county. The land area for whole York Co is 680.0 sq miles. The land area for the NAA of York Co is 275 sq miles. The ratio of the NAA land area to the whole county is 0.40 or 40% (275 / 680.8).

PART IV: ONROAD MOBILE SOURCE EMISSIONS INVENTORY DOCUMENTATION

I. INTRODUCTION

The following section contains onroad mobile invent ory documentation for York County, SC, which is part of the Charlotte-Rock Hill, NC-SC Nonattainment Area. The inventory data is for calendar year 2011.

The York County, SC emissions inventory was devel oped by the EPA, with input from the Department, as part of the 2011 NEI effort. The 2011 EI w as developed per the AERR reporting requirements. Emission estimates were calculated in tons per year , and converted to tons per average summer day for this submittal.

II. ONROAD MOBILE SOURCE INVENTORY DEVELOPMENT

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 vehi cles, light-duty trucks, heavy-duty trucks, and buses. The sectors include emissions from parking areas as well as emissions while the vehicles are moving.

EPA created a comprehensive set of mobile source input data, called the County Database files (CDB) as a starting point for the 2011 NEI. The Motor Vehicle Emissions Simulator (MOVES) 2010b is the current model used to estimate emissions for the onroa d mobile source category. For the 2011 NEI effort, EPA encouraged state, local, and tribal agencies to submit model inputs, where applicable, rather than emissions, so that EPA could use those inputs beyond the 2011 NEI for future year projections. York County, SC’s 2011 onroad mobile inventory w as developed using a combination of the 2011 EPA developed MOVES inputs and Depart ment-provided county-specific 2011 input data. The Department did not have county specific information for all of the MOVES required inputs, but any data that was available was provided and used in the 2011 NEI effort. The following sections will detail the actual county specific inputs the Department provided for York County, SC, during the 2011 NEI effort.Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 34 A. YORK COUNTY 2011 VEHIC LE POPULATION INPUTS

The sourceTypePopulation input file contains inform ation for MOVES about the number of vehicles for each source type ID, or vehicle type. The Department collected a snapshot of the vehicle population in York County in early 2011, from the S.C. Department of Motor Vehicles (DMV). This snapshot included all registered vehicles in York County. The Depart ment reviewed this information and made some corrections to exclude vehicles that do not actually have engines (i.e. trailers). Next, the data had to be organized into the MOVES source types. The DMV data originally had the registrations divided by the type of license plate they had and excluded informatio n on the type of vehicle licensed. To split the total vehicles by the proper source type, the Department fi rst did a MOVES run using default input data to extract the default ratios for the South Carolina 201 1 vehicle populations by source type. These ratios were then applied to the York County actual tota l vehicle population value to get a population value for each source type. This information was then sent to EPA for the 2011 NEI effort and replaced the default CDB input for sourceTypePopulation. Table 12 shows the values calculated for the 2011 York County vehicle population. Table 12: York County, SC 2011 Vehicle Population

B. YORK COUNTY 2011 VEHICLE MI LES TRAVELED (VMT) INPUTS

The VehicleTypeVMT input file contains inform ation for MOVES about the VMT for each Highway Performance Management System (HPMS) vehicle ID. The Department collected 2011 York County VMT data from the South Carolina Department of Transportation (SCDOT). The SCDOT VMT data was available by road classification but the data was not av ailable by HPMS vehicle type. To split the total VMT into HPMS vehicle type, the Department first di d a MOVES run using default input data to extract the2011 default ratios of VMT per HPMS vehicle type for South Carolina. These default 2011 ratios were then applied to the York County actual total VMT va lue to get a 2011 VMT per HPMS source type. Table 13 shows the values calculated for the 2011 York County VehicleTypeVMT. yearID sourceTypeID sourceTypePopulation

2011 11 7185
2011 21 85024 2011 31 63959
2011 32 21367
2011 41 118
2011 42 61 2011 43 797
2011 51 63
2011 52 4503 2011 53 598
2011 54 1050
2011 61 1132
2011 62 1386Emissions Inventory and Documentation for York County, SC po rtion of Charlotte-Rock Hill, NC-SC Marginal Nonattainment Area (2008 NAAQS Ozone Standards) August 22, 2014 Appendix A - Page 35 Table 13: York County, SC 2011 Vehicle Miles Traveled

HPMSVtypeID yearID HPMSBaseYearVMT baseYearOffNetVMT 10 2011 10708956
20 2011 1043726566
30 2011 744272430 40 2011 5552792 50 2011 65443619
60 2011 113435606

C. AVERAGE SUMMER DAY AND NAA EMISSIONS ESTIMATE

In order to generate the tons/a vg summer day emission estimate, the Department chose to rely on emission modeling work already conducted by the EP A-Office of Air Quality Planning and Standards (EPA-OAQPS). The emissions modeling work was part of the EPA-OAQPS 2011 modeling platform effort, which will be used for the EPA’s proposed rule related to the transport of ozone. The emissions modeling conducted by the EPA-OAQPS generated hourly emissions estimates which were then summarized at the monthly level. This was accomplished by first running the annual 2011 NEI emissions through the temporal allocation process used by SMOKE. For some sectors like onroad mobile the temporalization is performed by computing emissi ons based on the monthly VMT. For Point Electric Generating Units (EGUs) day-specific emissions are i nput to SMOKE based on the application of profiles based on CEMS data in the region.

With the monthly emissions, by sector, as a starting po int, the values then had to be converted to a tons/avg summer day. The best way to accomplish this was to take the monthly emissions for the five summer months (May, June, July, August and Septem ber) and add them together to get a total summer emission estimate for each sector. This total summer estim ate was then divided by the number of days in the 2011 summer (153 days) to generate an estimat e for the 2011 average summer day per sector.

Now that the average ozone season daily emissions fo r the whole York County, SC are determined, the emissions were allocated to the NAA only portion of the county. For onroad mobile sources, the Department decided that using VMT was the best in dicator of where these emissions may be occurring in the county. The most current VMT for the NAA of Yo rk County was obtained. This happened to be for calendar year 2010. The VMT for the whole York Co for calendar year 2010 was also obtained from the SCDOT. The following details how the ratio of NAA York County VMT to whole York County was calculated:

Whole York Co VMT in 2010 = 2,002,554,147.8 miles NAA of York Co VMT in 2010 = 1,953,015,289.0 miles Ratio of NAA to Whole County= 1,953 ,015,289.0 / 2,002,554,147.8 = 0.975

NAA York 2011 NOx = (whole cnty daily rate) (NAA ratio) = NAA t/day = 11.72 (0.975) = 11.43 tons/O3 day

NAA York 2011 VOC = (whole cnty daily rate) (NAA ratio) = NAA t/day = 5.44 (0.975) = 5.30 tons/O3 day

# Appendix B Legal AuthorityRevision to the South Carolina Air Quality Implementation Plan Appendix B – Page 2 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 

### This page intentionally left blankRevision to the South Carolina Air Quality Implementation Plan Appendix B – Page 3 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 LEGAL AUTHORITY 1

No plan for attaining a goal, the attainment of which is dependent upon regulatory action, can be used with any degree of effectiveness unless the legal framework is strong. Consequently, the Requirements for Preparation, Adoption, and S ubmittal of Implementation Plans, 40 CFR 51, as amended, define the necessary statutory powers whic h must be immediately available to states to carry out the responsibility to the Clean Air Act.

40 CFR 51.230 sets forth six specific requireme nts for State authority. The South Carolina Pollution Control Act, Act 1157 of 1970, as amended, S. C. Code Sections 48-1-10 thru - 350 (1976), provides the State’s authority to respond to these requirements. The Attorney General of the State of South Carolina has given an opinion as to the adequacy of South Carolina laws, as follows:

Legal Authority Required 40 CFR 51 Adequacy of S. C. Law S. C. Statutes Involved
(a) “Adopt emission standards and limitations and any other measures necessary for attainment and maintenance of national standards.” Adequate S. C. Code Secs. 48-1-20, 48-1-50(23)

(b) “Enforce applicable laws, regulations, & standards, and seek injunctive relief.” Adequate S. C. Code Sec. 48-1-50(1), (3), (4), (5), (11); Secs. 48-1-120, 48-1-130, 48-1-210, 48-1-320, 48-1-330. (c) “Abate pollutant emissions on an emergency basis to prevent substantial endangerment to the health of persons, i.e., authority comparable to that available to the Administrator under section 305 of the Act.” Adequate S. C. Code Sec. 48-1-290.

(d) “Prevent construction, modification, or operation of a facility, building, structure, or installation, or combination thereof, which directly or indirectly results or may result in emissions of any air pollutant at any location which will prevent the attainment or maintenance of a national standard.” Adequate S. C. Code Sec. 48-1-50(5), (10); Secs. 48-1-100, 48-1-110.

(e) “Obtain Information necessary to determine whether air pollution sources are in compliance with applicable laws, re gulations, and standards, Including authority to require recordkeeping and to make inspections and conduct tests of air pollution sources.” Adequate S. C. Code Sec. 48-1-50(10), (20), (22), (24).

(f) “Require owners or operators of stationary sources to install, maintain, and use emission monitoring devices and to make periodic reports to the State on the nature and amounts of emissions from such stationary sources; also authority for the State to make such data available to the public as reported and as correlated with any applicable emission st andards or limitations.” Adequate S. C. Code S ecs. 48-1-50(22), 48-1-270.

1 Section 2 of the EPA-approved South Carolina Air Qu ality Implementation Plan (SIP), which defines the State’s statutory powers as required in 40 CFR 51.230.Revision to the South Carolina Air Quality Implementation Plan Appendix B – Page 4 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 Public Hearings

The South Carolina Pollution Control Act provides for notice and public hearings prior to action by the Board of Health and Environmental C ontrol concerning adoption of regulations and standards, adoption or modification of final comp liance dates, and other specified legal actions.

Additionally, Act 176 of 1977 enacted by the S outh Carolina General Assembly requires, among other things, that at least thirty days public no tice be given before adoption, amendment or repeal of any rule. It also requires that the substan ce of the intended action or a description of the subjects and issues involved be made known. While this act escapes the actual requirement for a public hearing in each case, the two Acts taken t ogether do impose the requirement of a thirty days notice of public hearing, assuring compliance with the requirements of 40 CFR 51.102, as amended.

# Appendix C Public Notice South Carolina State Register May 23, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix C – Page 2 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix C – Page 3 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix D – Page 1 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 

# Appendix D EPA Comments of June 30, 2014 and Department’s Response August 22, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix D – Page 2 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 

### U.S. Environmental Protection Agency's Comments on South Carolina's Prehearing

Submission for Marginal Area Requirem ents for the 2008 8-Hour Ozone NAAQS

I. Key Comments:

• The prehearing submission contains emissi ons based on the entire York County area instead of the portion of the County that is designated nonattainment for the 2008 8-hour ozone NAAQS. The emissions inventory requirem ents in 182(a)(1) relate specifically to the nonattainment area, and as such the emi ssions should be devel oped in a consistent manner (i.e., partial county versus whole fo r York). To develop these partial county emissions, South Carolina can use an approach similar to the approach that the State used to develop the partial county emissions for th is same area for the maintenance plan to support the redesignation to attainment fo r the 1997 8-hour ozone NAAQS. The EPA is available for further dialogue on the developm ent of this emissions inventory to meet 182(a)(1) requirements for the 2008 8-hour ozone NAAQS.

Department Response: In response to EPA’s comments, the emissi ons have been apportioned to the NAA of York County. This was accomplished in a si milar manner as in the redesignation to attainment submittal for the 1997 8-hour ozone NAAQS. A description of how the whole county data was apportioned to the NAA onl y portion of York County can be found within the text of Appendix A.

II. Other Comments:

• A lengthy discussion of airport emissions is provided in Appendix A but no summer day emissions are listed in th e table or text. Please explai n and provide these emissions estimates and add to the point s ource totals in Table 1 or st ate that no emissions for this category exist in the partial county por tion of the York ozone nonattainment area.

Department Response: Actual point source emissions for airpor ts in the York NAA are found in Table 4, beginning on page 8. A new column has been added to the table to distinguish the industrial point sources from th e airports. Values are given in tons per average summer day. Methodology for computing these values is explained by the first paragraph on page 8.

• The first paragraph of the nonpoint sources discussion in section II.A of Appendix A states that ERTAC provided many emissions that the EPA used in the estimation of emissions. The EPA recommends that this di scussion specify how those emissions from the ERTAC process are pertinent to the part ial county portion of the York nonattainment area and this SIP revision.Revision to the South Carolina Air Quality Implementation Plan Appendix D – Page 3 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014 

### Department Response: As the text states on page 11, Section II.A, ERTAC collaborated with EPA and states to develop new methodologies/emi ssion factors for several nonpoi nt categories for the 2011 NEI effort. Since the 2011 NEI data was used as the basis for the development of the 2011 NAA of York County nonpoint inventor y, background information was provided for informational purposes.

• The EPA assumes that all of the sources disc ussed in sections A.1- A.l0 are located in York County. The EPA recommends that the sections or a table provide the volatile organic compounds and nitrogen oxide emissions estimates that are associated with them for the partial county portion of the York nonattainment area. This will provide documentation to support the stationary area and nonroad mobile source category totals in Table 1 of Appendix A.

Department Response: Actual nonpoint source emissions for all cate gories discussed in sections A.1-A.10 are found in Table 5, beginning on page 12, in wh ich they are listed by SCC designation.

• It is unclear whether or not emissions from airports, locomotives and commercial marine vessels exist in the partial county portion of the York nonattainment area, even though the categories are discussed. Please cl arify and detail the emissions by category. This will provide documentation to support th e source category totals in Table 1 of Appendix A.

Department Response: Actual point source emissions for airports in the York NAA are now found in Table 4, beginning on page 8. Text on pa ge 5, last paragraph, clarifie s that there are no railyards in York County, so this category is not addr essed. Nor are there commercial marine vessels, as explained on page 31, first paragraph, so this category is not addressed.

• The EPA recommends that Appendix A deta il the individual nonroad sources and their emissions that make up the nonroad totals in Table 1.

Department Response: Table 10, beginning on page 24, details the act ual nonroad source emissions for the York NAA by SCC designation.

• Page 5 CAA 182(a)(3)(B), last paragr aph - The EPA recommends adding the underlined text to South Carolina's followi ng sentence, "Annual emissions statement collection for the York nonattainment area has been ongoing as the 1997 ... "

Department Response: This change has been made on page 5.

# Appendix E Public Notice SIP Revision South Carolina State Register August 22, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix E – Page 2 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014Revision to the South Carolina Air Quality Implementation Plan Appendix E – Page 3 Marginal Nonattainment Area SIP Requirements for the York County portion of the Char lotte-Rock Hill NC-SC Nonattainment Area August 22, 2014