Errata to the 

Redesignation Demonstration and Maintenance Plan 

for the 

Hickory (Catawba County) and 

Greensboro/Winston-Salem/High Point 

(Davidson and Guilford Counties) 

Fine Particulate Matter Nonattainment Areas 

Prepared by 

North Carolina Department of Environment and Natural Resources 

Division of Air Quality 

December 22, 2010 
(This page intentionally left blank) 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 1 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

INTRODUCTION 

This document is intended to make minor corrections or changes, at the request of the United 

States Environmental Protection Agency’s (USEPA’s ), to the December 18, 2009, 

Redesignation Demonstration and Maintenance Plan for the Hickory (Catawba County) and 

Greensboro/Winston-Salem/High Point (Davidson and Guilford Counties) Fine Particulate 

Matter Nonattainment Areas. The corrections and changes are described below. 

CORRECTIONS OR CHANGES 

Narrative Corrections or Changes 

Page 2-6, last paragraph: The USEPA requested we change the reference to the USEPA’s acid 

rain database to the USEPA’s Clean Air Markets database to better reflect the data used. 

Page 2-6, last paragraph: The amount of nitrogen dioxide (NOx) emissions reduced since 2002 

is incorrectly listed as over 54,000 tons per year. The correct value should be over 84,000 tons 

per year. 

Page 3-7, under Clean Smokestacks Act: The percent reduction of annual NOx emissions by 

2009 was corrected from 78% to 77%, and the percent reduction of annual sulfur dioxide (SO2) 

emissions by 2013 was corrected from 74% to 73%. 

Page 3-11, Table 3-4 Point Source NOx Emissions: The USEPA, Region 4 requested that the 

2008 emissions for Marshall Steam Station in Catawba County be corrected to reflect the actual 

emissions instead of the projected emissions. The 2008 emissions for Marshall Steam Station 

were updated to reflect the actual emissions. The future year NOx emissions for all units except 

Unit 3 were kept constant at the 2008 emission level since their controls were installed prior to 

2008 and the emissions are not expected to change significantly from year to year. For Unit 3, 

selective catalytic reduction was install during 2008, therefore the future year emissions were 

adjusted to reflect this control. 

Page 3-12, Table 3-5 Point Source SO2 Emissions: The USEPA, Region 4 requested that the 

2008 emissions for Marshall Steam Station in Catawba County be corrected to reflect the actual 

emissions instead of the projected emissions. The 2008 emissions for Marshall Steam Station 

were updated to reflect the actual emissions. The future year SO2 emissions for all units were 

kept constant at the 2008 emission level since their controls were installed prior to 2008 and the 

emissions are not expected to change significantly from year to year. 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 2 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Page 3-12, Table 3-6 Point Source PM2.5 Emissions: The USEPA, Region 4 requested that the 

2008 emissions for Marshall Steam Station in Catawba County be corrected to reflect the actual 

emissions instead of the projected emissions. The 2008 emissions for Marshall Steam Station 

were updated to reflect the actual emissions. The future year PM2.5 emissions for all units were 

kept constant at the 2008 emission level since their controls were installed prior to 2008 and the 

emissions are not expected to change significantly from year to year. 

Page 3-15, Tables 3-16 and 3-17: These tables were updated to reflect the changed point source 

emissions for Catawba County. 

Page 3-16, Tables 3-18 and 3-19: These tables were updated to reflect the changed point source 

emissions for Catawba County. 

Page 3-17, Table 3-21: This table was updated to reflect the changed point source emissions for 

Catawba County. 

Page 4-10, Table 4-6: This table was updated to reflect the changed point source emissions for 

Catawba County. 

Appendix C.1 Point Source Emissions Inventory Documentation Changes 

Appendix C.1, page 7: The second paragraph was changed to reflect the USEPA’s request that 

the Marshall Steam Station 2008 emissions be updated to reflect actual emissions instead of the 

projected emissions. 

Appendix C.1, page 7, Table 4.1: The USEPA, Region 4 requested that the 2008 emissions for 

Marshall Steam Station in Catawba County be corrected to reflect the actual emissions instead of 

the projected emissions. The 2008 emissions for Marshall Steam Station were updated to reflect 

the actual emissions. The future year NOx emissions for all units except Unit 3 were kept 

constant at the 2008 emission level since their controls were installed prior to 2008 and the 

emissions are not expected to change significantly from year to year. For Unit 3, selective 

catalytic reduction was install during 2008, therefore the future year emissions were adjusted to 

reflect this control. 

Appendix C.1, page 8, Table 4.2: The USEPA, Region 4 requested that the 2008 emissions for 

Marshall Steam Station in Catawba County be corrected to reflect the actual emissions instead of 

the projected emissions. The 2008 emissions for Marshall Steam Station were updated to reflect 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

the actual emissions. The future year SO2 emissions for all units were kept constant at the 2008 

emission level since their controls were installed prior to 2008 and the emissions are not 

expected to change significantly from year to year. 

Appendix C.1, page 8, Table 4.3: The USEPA, Region 4 requested that the 2008 emissions for 

Marshall Steam Station in Catawba County be corrected to reflect the actual emissions instead of 

the projected emissions. The 2008 emissions for Marshall Steam Station were updated to reflect 

the actual emissions. The future year PM2.5 emissions for all units were kept constant at the 2008 

emission level since their controls were installed prior to 2008 and the emissions are not 

expected to change significantly from year to year. 

Appendix C.1, pages 10,11,and 15, Table 5.1: The emissions for Marshall Steam Station were 

updated to reflect the requested changes by the USEPA. 

REVISED SECTIONS 

Attached are the revised sections to the Redesignation Demonstration and Maintenance Plan for 

the Hickory and Greensboro/Winston-Salem/High Point Fine Particulate Matter Nonattainment 

Areas. To appropriately revise the original package, replace the pages as outlined below: 

Narrative Replacements 

Replace December 18, 2009 page 2-6 with the attached December 22, 2010 page 2-6. (Note that 

December 18, 2009 page 2-5 has been included for ease of substitution.) 

Replace December 18, 2009 page 3-7 with the attached December 22, 2010 page 3-7. (Note that 

December 18, 2009 page 3-6 has been included for ease of substitution.) 

Replace December 18, 2009 pages 3-11 through 3-12 with the attached December 22, 2010 

pages 3-11 through 3-12. (Note that December 18, 2009 pages 3-10 and 3-13 have been 

included for ease of substitution.) 

Replace December 18, 2009 pages 3-15 through 3-17 with the attached December 22, 2010 

pages 3-15 through 3-17. (Note that December 18, 2009 page 3-14 has been included for ease of 

substitution.) 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 4 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Replace December 18, 2009 page 4-10 with the attached December 22, 2010 pages 4-10. (Note 

that December 18, 2009 page 4-11 has been included for ease of substitution.) 

Appendix C.1 Replacements 

Replace December 18, 2009 Appendix C.1 “Point Source Emission Inventory Documentation” 

pages 7 and 8 with the attached December 22, 2010 Appendix C.1 pages 7 and 8. 

Replace December 18, 2009 Appendix C.1 page 10 with the attached December 22, 2010 

Appendix C.1 page 10. (Note that December 18, 2009 Appendix C.1 page 9 has been included 

for ease of substitution.) 

Replace December 18, 2009 Appendix C.1 page 11 with the attached December 22, 2010 

Appendix C.1 page 11. (Note that December 18, 2009 Appendix C.1 page 12 has been included 

for ease of substitution.) 

Replace December 18, 2009 Appendix C.1 page 15 with the attached December 22, 2010 

Appendix C.1 page 15. (Note that December 18, 2009 Appendix C.1 page 16 has been included 

for ease of substitution.) 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 2-5 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

• program is expected to achieve a 90% reduction in particulate matter (PM) emissions. 

These emission reductions are federally enforceable. 

• Nonroad spark-ignition engines and recreational engines standards: Tier 1 of this 

standard was implemented in 2004 and Tier 2 started in 2007, and will reduce 

particulate matter emissions. These emission reductions are federally enforceable. 

• Large nonroad diesel engine standards: Promulgated in 2004, this rule is being 

phased in between 2008 and 2014. This rule will also reduce sulfur content in 

nonroad diesel fuel. When fully implemented, this rule will reduce NOx and direct 

PM2.5 emissions by over 90%. These emission reductions are federally enforceable. 

The state measures that have been implemented include: 

• Clean Air Bill: This State legislation expanded the inspection and maintenance (I/M) 

program from 9 counties to 48. It was phased-in in the Hickory and Triad 

nonattainment areas from July 1, 2002 through July 1, 2003. This program will 

reduce NOx and Volatile Organic Compound (VOCs), and Carbon Monoxide (CO). 

These emission reductions are state enforceable. 

• Open burning: This regulation prohibits the burning of man-made materials 

throughout the State. Additionally, this regulation prohibits open burning of yard 

waste in areas that the NCDAQ forecasts an air quality action day. The open burning 

regulation will reduce fine particulate matter emissions, as well as NOx, VOCs and 

CO emissions. These emission reductions are state enforceable. 

• Heavy duty diesel engine gap filling rule: This rule requires engine manufacturers to 

perform the supplemental testing requirements for heavy duty diesel engines for 

model years 2005 and 2006 due to delays in the USEPA’s rule and will reduce PM 

emissions. These emission reductions are state enforceable. 

• Clean Smokestack Act: This rule requires coal-fired power plants to reduce annual 

NOx emissions by 77% by 2009 and to reduce annual sulfur dioxide emissions by 

49% by 2009 and 73% by 2013. This legislation sets a cap on NOx and SO2

emissions, which the public utilities cannot meet by purchasing emission credits. 

These emission reductions are state enforceable.
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 2-6 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

• NOx State Implementation Plan (SIP) Call rule: This rule was predicted to reduce 

summertime NOx emissions from power plants and other industries by 68%. These 

emission reductions are state and federally enforceable. 

• Diesel Retrofits: As part of the North Carolina Mobile Source Emission Reduction 

Grants program, a number of cities, counties and school districts have installed Diesel 

Oxidation Catalysts (DOCs) or Diesel Particulate Filters (DPFs) on their diesel 

equipment. The vehicles that have been retrofitted include schools buses, as well as 

county fleet trucks for solid waste pickup. These types of filters are designed to 

remove particulate matter, and when used with ultra low sulfur diesel fuel, NOx and 

VOC emissions are also reduced. Even though these emission reductions are 

voluntary and not enforceable, they are still considered permanent reductions. 

• Diesel Emissions Reduction Act (DERA): DERA provides new diesel emissions 

reduction grant authority for the USEPA. This funding is used to achieve significant 

reductions in diesel emissions that improve air quality and protect public health. The 

DERA funds that the NCDAQ have received have been used to retrofit, repower, or 

replace existing diesel engines from on-road and nonroad mobile source 

vehicles/equipment. This program will reduce PM, NOx, and VOC emissions. Even 

though these emission reductions are voluntary and not enforceable, they are still 

considered permanent reductions. 

One of the largest components of PM2.5 in the southeastern United States is sulfate. This is 

formed through various chemical reactions from the precursor SO2. Another component of 

PM2.5 is nitrate, which is formed from the precursor NOx. Controls installed on coal-fired power 

plants over the past few years have significantly reduced these two precursor pollutants. 

Table 2-4 presents the annual emissions for the North Carolina sources that are in the USEPA’s 

Clean Air Markets database. Since 2002, when the NOx controls started coming on-line to meet 

the NOx SIP Call and later to meet the North Carolina Clean Smokestacks Act (NCCSA), the 

NOx emissions from subject sources have decreased over 84,000 tons per year. To meet the SO2

emission caps in the NCCSA, the North Carolina public utilities started installing SO2 controls 

late in 2005. Since then, the SO2 emissions from the utilities in North Carolina have decreased 

nearly 274,000 tons. The decline in SO2 emissions has coincided with the decline in annual 

PM2.5 concentrations across North Carolina. 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-6 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

Table 3-1 OBDII Phase-in Effective Dates 

County Date 

Catawba July 1, 2003 

Davidson July 1, 2003 

Guildford July 1, 2002 

 

These emission reductions are state enforceable. The expected NOx benefits for the maintenance 

years are listed in Table 3-2 below. 

Table 3-2 I/M NOx Benefits by County 

NOx I/M Benefit (Tons/year) 2008 2011 2014 2017 2021 

Total NOx for Catawba County 202 272 335 393 469 

Total NOx for Davidson County 207 273 329 382 452 

Total NOx for Guilford County 660 865 1,055 1,225 1,426 

NOx SIP Call Rule/CAIR

In response to the USEPA’s NOx SIP call, North Carolina adopted rules to control the emissions 

of NOx from large stationary combustion sources. These rules cover (1) fossil fuel-fired 

stationary boilers, combustion turbines, and combined cycle systems serving a generator with a 

nameplate capacity greater than 25 MW and selling any amount of electricity, (2) fossil fuelfired stationary boilers, combustion turbines, and combined cycle systems having a maximum 

design heat input greater than 250 million British thermal units per hour, and (3) reciprocating 

stationary internal combustion engines rated at equal to or greater than 2400 brake horsepower 

(3000 brake horsepower for diesel engines and 4400 brake horsepower for dual fuel engines). 

As part of the NOx SIP Call, the USEPA rules established a NOx budget for sources in North 

Carolina and other states. North Carolina has a Phase II budget (i.e., emission allowance) of 

165,022 tons NOx per ozone season. 

Besides amending existing NOx rules and adopting new NOx rules specifically to address the 

USEPA NOx SIP Call, the North Carolina rules also require new sources to control emissions of 

NOx. The objective of this requirement is (1) to aid in meeting the NOx budget for North 

Carolina for minor sources and (2) to aid in attaining and maintaining the ambient air quality 

standard for ozone in North Carolina. North Carolina’s NOx SIP Call rule was predicted to 

reduce summertime NOx emissions from power plants and other industries by 68% by 2006. In 

October 2000, the North Carolina Environmental Management Commission (EMC) adopted 

rules requiring the reductions.
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-7 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

In 2009, the NOx SIP Call program was replaced with the CAIR, a cap-and-trade program that 

will achieve reductions of emissions of SO2 and NOx in the eastern United States. NOx sources 

that were regulated under the NOx SIP Call are now regulated under the CAIR program. North 

Carolina adopted the CAIR rules in 2006 (amended in 2008). North Carolina’s CAIR rules set 

annual SO2 allowances as well as both ozone season and annual NOx allowances for coal-fired 

electric generating units and other large combustion sources. These regulations are due to a 

Federal program and thus are both State and Federally enforceable. 

Due to the Court challenges of CAIR in 2008, the USEPA will be making changes to this 

program soon. However, the existing CAIR rules will remain in place until the USEPA 

promulgates changes to the program. 

Clean Smokestacks Act

In June 2002, the North Carolina General Assembly enacted the NCCSA, which requires coalfired power plants in North Carolina to reduce annual NOx emissions by 77% by 2009. These 

power plants must also reduce annual SO2 emissions by 49% by 2009 and 73% by 2013. It is 

significant to note that this law sets a cap on NOx and SO2 emissions for the State which the 

North Carolina public utilities cannot meet by purchasing credits from sources outside of North 

Carolina. With requiring year-round NOx controls and not allowing the purchase of NOx credits 

to meet the caps, the NCCSA reduces NOx emissions beyond the requirements of the NOx SIP 

Call Rule. One of the first state laws of its kind in the nation, this legislation provides a model 

for other states in controlling multiple air pollutants from older coal-fired power plants. These 

emissions reductions are state enforceable. 

Prevention of Significant Deterioration 

All new major sources of SO2 and NOx will be evaluated under the prevention of significant 

deterioration program and are required to use best available control technology. These emissions 

reductions are state enforceable. 

Open Burning

The North Carolina open burning regulation prohibits the burning of man-made materials 

statewide. In June 2004, the EMC approved revisions to the open burning regulation banning 

open burning of yard waste and land clearing debris on forecasted Code Orange or higher "air 

quality action days," for those counties that the NCDAQ or local air programs forecast ozone or 

fine particulate matter. The following counties in the Hickory area are subject to this rule: 

Alexander, Catawba, southeastern Burke and southeastern Caldwell. The following counties in
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-10 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

SAFETY-LU (the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy 

for Users) as well as any updated transportation legislation and the CAA as amended. 

Mobile Source Emission Reduction Grants

• Diesel Retrofits: As part of the North Carolina Mobile Source Emission Reduction 

Grants program, a number of cities, counties and school districts have installed Diesel 

Oxidation Catalysts (DOCs) or Diesel Particulate Filters (DPFs) on their diesel 

equipment. The vehicles that have been retrofitted include schools buses, as well as 

county fleet trucks for solid waste pickup. Although these types of filters are 

designed to remove fine particulate matter, when used with ultra low sulfur diesel 

fuel, NOx and VOC emissions are also reduced. 

• Diesel Emissions Reduction Act (DERA): DERA provides new diesel emissions 

reduction grant authority for the USEPA. This funding is used to achieve significant 

reductions in diesel emissions that improve air quality and protect public health. In 

response to DERA, the USEPA created grant and funding programs under the 

National Clean Diesel Campaign to build on the success of its regulatory and 

voluntary efforts to reduce emissions from diesel engines. The DERA funds that the 

NCDAQ have received have been used to retrofit, repower, or replace existing diesel 

engines from on-road and nonroad mobile source vehicles/equipment. 

3.3 EMISSIONS INVENTORIES AND MAINTENANCE DEMONSTRATION 

3.3.1 Theory of Approach 

There are two basic approaches used to demonstrate continued maintenance. The first is the 

comparison of a projected emissions inventory with a baseline emissions inventory. The second 

approach involves complex analysis using gridded photochemical modeling. The approach used 

by the NCDAQ is the comparison of emissions inventories for the years 2008 and 2021. 

For the maintenance demonstration, the base year of 2008 was chosen since it is a year that falls 

within the attaining design value period of 2006-2008 and some emissions inventory data was in 

the process of being developed for this year. The maintenance demonstration is made by 

comparing the 2008 baseline emissions inventory to the 2021 projected emissions inventory. 

The baseline emissions inventory represents an emission level for a period when the ambient air 

quality standard was not violated, 2006-2008. If the projected emissions remain at or below the 

baseline emissions, continued maintenance is demonstrated and it then follows, if the projected 

emissions remain at or below the baseline emissions, then the ambient air quality standard shoul
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-11 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

not be violated in the future. In addition to comparing the final year of the plan, all of the interim 

years are compared to the 2008 baseline to demonstrate that these years are also expected to 

show continued maintenance of the annual fine particulate matter standard. 

The emissions inventories are comprised of four major types of sources: point, area, on-road 

mobile and nonroad mobile. The projected emissions inventories have been estimated using 

projected rates of growth in population, traffic, economic activity, expected control programs, 

and other parameters. Naturally occurring, or biogenic, emissions are not included in the 

emissions inventory comparison, as these emissions are outside the State’s span of control. 

3.3.2 Emission Inventories 

There are four different man-made emission inventory source classifications: (1) stationary point, 

(2) area, (3) on-road mobile and (4) nonroad mobile sources. 

Point sources are those stationary sources that require an Air Permit to operate. In general, these 

sources have a potential to emit more than 5 tons per year of CO, NOx, PM, SO2 and/or VOC 

from a single facility. The source emissions are tabulated from data collected by direct on-site 

measurements of emissions or mass balance calculations utilizing emission factors from the 

USEPA’s AP-42. There are usually several emission sources for each facility. Emission data is 

collected for each point source at a facility and the data is entered into an in-house database 

system. For the projected year's inventory, point sources are adjusted by growth factors based on 

Standard Industrial Classification codes. The growth factors are generated using the USEPA’s 

Economic Growth Analysis System version 5.0 (E-GAS 5.0) program or using growth patterns 

obtained from County Business Patterns. For detailed discussion on how the point sources 

emission inventory was developed, see Appendix C.1. A summary of the point source emissions 

are presented in Tables 3-4 to 3-6. 

Table 3-4. Point Source NOx Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 13,310 10,549 10,548 10,548 10,548 

Davidson 841 865 892 920 961 

Guilford 231 231 232 233 237 

Triad Total 1,072 1,096 1,124 1,153 1,198 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-12 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Table 3-5 Point Source SO2 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 6,189 6,187 6,186 6,184 6,183 

Davidson 286 289 292 295 299 

Guilford 449 451 453 455 458 

Triad Total 735 740 745 750 757 

Table 3-6. Point Source PM2.5 Emissions (tons per year) 

County 2008 2011 2014 2017 2021 

Catawba 6,976 6,975 6,975 6,973 6,971 

Davidson 179 178 177 176 175 

Guilford 62 62 62 63 63 

Triad Total 241 240 239 239 238 

Area sources are those stationary sources whose emissions are relatively small but due to the 

large number of these sources, the collective emissions could be significant (i.e., dry cleaners, 

service stations, etc.). For area sources, emissions are estimated by multiplying an emission 

factor by some known indicator of collective activity such as production, number of employees, 

or population. These types of emissions are estimated on the county level. For the projected 

year's inventory, area source emissions are changed by population growth, projected production 

growth, or when applicable, by E-GAS 5.0 growth factors. For detailed discussion on how the 

area source emission inventory was developed, see Appendix C.2. A summary of the area source 

emissions are presented in Tables 3-7 to 3-9. 

Table 3-7. Area Source NOx Emissions (tons per year) 

County 2008 2011 2014 2017 2021 

Catawba 662 614 566 520 454 

Davidson 583 551 516 486 438 

Guilford 1,243 1,210 1,177 1,146 1,099 

Triad Total 1,826 1,816 1,693 1,632 1,537 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-13 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

Table 3-8. Area Source SO2 Emissions (tons per year) 

County 2008 2011 2014 2017 2021 

Catawba 2,263 2,037 1,808 1,580 1,277 

Davidson 983 838 692 548 353 

Guilford 4,129 3,905 3,683 3,460 3,164 

Triad Total 5,112 4,743 4,375 4,008 3,517 

Table 3-9. Area Source PM2.5 Emissions (tons per year) 

County 2008 2011 2014 2017 2021 

Catawba 682 658 629 606 559 

Davidson 1,071 1,028 979 937 857 

Guilford 697 663 623 590 524 

Triad Total 1,768 1,691 1,602 1,527 1,381 

For mobile sources, the USEPA’s MOBILE6.2 mobile model is run to generate the twelve 

functional road class (i.e. urban interstate, rural interstate, rural local, etc.) emission factors. The 

emissions are calculated by multiplying the road class vehicle miles traveled (VMT) by the road 

class emission factor and summed to the county level. For the projected years’ inventories, the 

on-road mobile sources emissions are calculated by running the MOBILE6.2 mobile model for 

the future year to generate emission factors that take into consideration expected Federal tailpipe 

standards, fleet turnover and new fuels. The new emission factors are multiplied by the 

projected VMT. For detailed discussion on how the on-road mobile emission inventory was 

developed, see Appendix C.3. A summary of the on-road mobile source emissions are presented 

in Tables 3-10 to 3-12. 

Table 3-10. On-road Mobile Source NOx Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 3,546 2,830 2,128 1,617 1,193 

Davidson 3,954 3,060 2,243 1,679 1,216 

Guilford 10,462 7,957 5,885 4,410 3,268 

Triad Total 14,416 11,017 8,128 6,089 4,484 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-14 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

Table 3-11. On-road Mobile Source SO2 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 23 20 22 23 25 

Davidson 24 20 21 22 24 

Guilford 74 64 69 75 80 

Triad Total 98 84 90 97 104 

Table 3-12. On-road Mobile Source PM2.5 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 59 51 43 39 37 

Davidson 64 53 43 38 36 

Guilford 170 142 125 117 117 

Triad Total 234 195 168 155 153 

Nonroad mobile sources are equipment that can move but do not use the roadways, i.e., lawn 

mowers, construction equipment, railroad locomotives, aircraft, etc. The emissions from this 

category are calculated using the USEPA’s NONROAD2008a nonroad mobile model, with the 

exception of the railroad locomotives and aircraft engine. The railroad locomotive and aircraft 

engine emissions are estimated by taking activity data, such as landings and takeoffs, and 

multiply by an emission factor. These emissions are also estimated at the county level. For the 

projected years’ inventories, the emissions are estimated using the USEPA’s NONROAD2008a 

nonroad mobile model, E-GAS 5.0 growth factors or projected landing and takeoff data for 

aircraft. For detailed discussion on how the nonroad mobile emission inventory was developed, 

see Appendix C.4. A summary of the nonroad mobile source emissions are presented in 

Tables 3-13 to 3-15. 

Table 3-13. Nonroad Mobile Source NOx Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 1,173 922 700 551 453 

Davidson 1,831 1,632 1,467 1,275 1,115 

Guilford 3,864 3,371 2,816 2,350 1,980 

Triad Total 5,695 5,003 4,283 3,625 3,095 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-15 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Table 3-14. Nonroad Mobile Source SO2 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 18 6 4 3 4 

Davidson 25 17 2 2 2 

Guilford 96 51 42 42 43 

Triad Total 121 68 44 44 45 

Table 3-15. Nonroad Mobile Source PM2.5 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 70 67 57 46 38 

Davidson 71 67 58 46 40 

Guilford 264 252 220 186 157 

Triad Total 335 319 278 232 197 

3.3.3 Summary of Emissions 

The sum total of these man-made emissions for the PM2.5 nonattainment areas is tabulated in 

Tables 3-16 though 3-18. 

Table 3-16. Total Man-Made NOx Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 18,691 14,915 13,942 13,236 12,648 

Davidson 7,209 6,108 5,118 4,360 3,730 

Guilford 15,800 12,769 10,110 8,139 6,584 

Triad Total 23,009 18,877 15,228 12,499 10,314 

Table 3-17. Total Man-Made SO2 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 8,493 8,250 8,020 7,790 7,489 

Davidson 1,318 1,164 1,007 867 678 

Guilford 4,748 4,471 4,247 4,032 3,745 

Triad Total 6,066 5,635 5,254 4,899 4,423 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-16 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Table 3-18. Total Man-Made PM2.5 Emissions (tons per year)

County 2008 2011 2014 2017 2021 

Catawba 7,787 7,751 7,704 7,664 7,605 

Davidson 1,385 1,326 1,257 1,197 1,108 

Guilford 1,193 1,119 1,030 956 861 

Triad Total 2,578 2,445 2,287 2,153 1,969 

3.3.4 Maintenance Demonstration 

As discussed above, maintenance is demonstrated when the future years total man-made 

emissions are less than the 2008 baseline emissions. The following tables summarized the SO2, 

NOx, and primary PM2.5 emissions for both the Hickory and Triad nonattainment areas. The 

difference between the base year and the final year of the plan illustrates that the continued 

maintenance of the annual fine particulate matter NAAQS is expected. 

Table 3-19 Maintenance Demonstration for Hickory PM2.5 Nonattainment Area 

Year NOx 

(tons per year) 

SO2 

(tons per year) 

PM2.5 

(tons per year) 

2008 18,691 8,493 7,787 

2011 14,915 8,250 7,751 

2014 13,942 8,020 7,704 

2017 13,236 7,790 7,664 

2021 12,648 7,489 7,605 

Difference from 

2008 to 2021 -6,043 -1,004 -182 

Table 3-20 Maintenance Demonstration for Triad PM2.5 Nonattainment Area 

Year NOx

(tons per year) 

SO2

(tons per year) 

PM2.5

(tons per year) 

2008 23,009 6,066 2,578 

2011 18,877 5,635 2,445 

2014 15,228 5,254 2,287 

2017 12,499 4,899 2,153 

2021 10,314 4,423 1,969 

Difference from 

2008 to 2021 -12,695 -1,643 -609 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 3-17 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

The difference between the attainment level of emissions (2008) from all man-made sources and 

the projected level of emissions from all man-made sources in the nonattainment areas are 

considered the “safety margin”. The safety margin for each projected year is listed below in 

Table 3-21 and 3-22. 

Table 3-21 Safety Margin for Hickory PM2.5 Nonattainment Area 

Year NOx

(tons per year) 

SO2

(tons per year) 

PM2.5

(tons per year) 

2011 -3,776 -243 -36 

2014 -4,749 -473 -83 

2017 -5,455 -703 -123 

2021 -6,043 -1,004 -182 

Table 3-22 Safety Margin for Triad PM2.5 Nonattainment Area 

Year NOx

(tons per year) 

SO2

(tons per year) 

PM2.5

(tons per year) 

2011 -4,132 -431 -133 

2014 -7,781 -812 -291 

2017 -10,510 -1,167 -425 

2021 -12,695 -1,643 -609 

For both nonattainment areas, there are significant safety margins from 2011 to 2021. In 

addition to the above safety margins within the PM2.5 nonattainment areas, SO2 emissions from 

nearby coal-fired power plants will be significantly reduced due to the NCCSA. This effectively 

gives the PM2.5 nonattainment areas an even larger safety margin for SO2. Table 2-5 shows the 

SO2 reductions at nearby coal-fired power plants. These reductions will benefit both the Triad 

and Hickory nonattainment areas and will provide large safety margins through 2021. 

3.4 CONTINGENCY PLAN 

3.4.1 Overview 

The two main elements of the North Carolina contingency plan are tracking and triggering 

mechanisms to determine when contingency measures are needed and a process of developing 

and adopting appropriate control measures. There will be three potential triggers for the 

contingency plan. The primary trigger of the contingency plan will be a violation of the annual 

PM2.5 NAAQS at any of the monitors in either PM2.5 nonattainment area. The secondary trigger 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 4-10 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Table 4-5 Guilford County MVEB 

 2011 2021 

NOx Emissions (kg/year)

Base Emissions 7,218,360 2,964,834 

Safety Margin Allocated to 

MVEB 721,836 592,967 

NOx Conformity MVEB 7,940,196 3,557,801 

PM2.5 Emissions (kg/year)

Base Emissions 128,465 105,716 

Safety Margin Allocated to 

MVEB 26,191 48,940 

PM2.5 Conformity MVEB 154,656 154,656 

4.5 NEW SAFETY MARGINS 

For the Hickory nonattainment area, a total of 256,756 kg/year (283 tons/year) and 216,442 

kg/year (239 tons/year) of the 2011 and 2021 NOx safety margins, respectively, were added to 

the NOX MVEBs. 

 For the Triad nonattainment area, a total of 999,478 kg/year (1,102 tons/year) and 

813,510 kg/year (897 tons/year) of the 2011 and 2021 NOx safety margins, respectively, were 

added to the Triad NOX MVEBs. For PM2.5, a total of 36,552 kg/year (40 tons/year) and 74,572 

kg/year (82 tons/year) of the 2011 and 2021 PM2.5 safety margins, respectively, were added to 

the Triad PM2.5 MVEBs. 

Table 4-6 New Safety Margins for the Hickory PM2.5 nonattainment area 

Year NOx (tons/year) PM2.5 (tons/year) 

2011 -3,493 -36 

2014 -4,749 -83 

2017 -5,455 -123 

2021 -5,804 -182 
Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 4-11 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

Table 4-7 New Safety Margins for the Triad PM2.5 nonattainment area 

Year NOx (tons/year) PM2.5 (tons/year) 

2011 -3,030 -93 

2014 -7,781 -291 

2017 -10,510 -425 

2021 -11,798 -527 
Point Source Emission Inventory Documentation 7 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 Appendix C.1 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

4.0 TOTAL POINT SOURCES EMISSIONS FOR HICKORY AND 

TRIAD NONATTAINMENT AREAS 

In the following sections the emissions for the Hickory and Triad nonattainment areas are 

totaled, as well as, the estimated facility emissions for each county in the nonattainment area are 

identified for the base year (2008) and the future maintenance years (2011, 2014, 2017 and 

2021). 

In the original maintenance plan submitted December 18, 2009, the emissions for the one large 

utility facility located in Catawba County, Duke Power –Marshall Steam Station, the annual 

emissions were estimated by using North Carolina’s 2009 Clean Smokestacks Act Compliance 

Plan. In December 2010, the USEPA requested that the estimated 2008 emissions be updated 

using the actual 2008 emissions. The 2008 emissions for Marshall Steam Station were updated 

to reflect the actual emissions. The future year SO2 emissions for this facility were kept constant 

since the SO2 controls at this facility were all installed prior to 2008 and the estimated emissions 

are expected to be relatively constant from year to year. The emission controls at Marshall 

Steam Station unit 3 were upgraded from selective non-catalytic reduction to selective catalytic 

reduction during 2008. Therefore, the future year NOx emissions for this unit were based upon 

the 2009 Clean Smokestacks Act Compliance Plan. 

Emission summary tables for Hickory and Triad nonattainment counties are as follow: 

Table 4.1. Hickory and Triad Point Source NOx Emissions (ton/year) 

County 2008 2011 2014 2017 2021 

Catawba 13,310 10,549 10,548 10,548 10,548 

Davidson 841 865 892 920 961 

Guilford 231 231 232 233 237 

Triad Total 1,072 1,096 1,124 1,153 1,198 
Point Source Emission Inventory Documentation 8 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 Appendix C.1 

Errata to the Redesignation Demonstration and Maintenance Plan December 22, 2010 

Table 4.2. Hickory and Triad Point Source SO2 Emissions (ton/year) 

County 2008 2011 2014 2017 2021 

Catawba 6,189 6,187 6,186 6,184 6,183 

Davidson 286 289 292 295 299 

Guilford 449 451 453 455 458 

Triad Total 735 740 745 750 757 

Table 4.3. Hickory and Triad Point Source PM2.5 Emissions (ton/year) 

County 2008 2011 2014 2017 2021 

Catawba 6,976 6,975 6,975 6,973 6,971 

Davidson 179 178 177 176 175 

Guilford 62 62 62 63 63 

Triad Total 241 240 239 239 238 
Point Source Emission Inventory Documentation 9 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 Appendix C.1 

Redesignation Demonstration and Maintenance Plan December 18, 2009 

DISCUSSION OF POINT SOURCE CATEGORIES 

Industrial processes in the inventory are identified with 8-digit numbers known as the Source 

Classification Codes (SCC). These are grouped numerically into a number of categories for 

convenience. The following is the inventories reported by SCC by county. In general, the first 

three digits of the SCC code describe the process and the last five digits give more detail as to 

the fuel used, size of source, etc. 

It should be noted that the SCC in any particular instance was selected by an individual entering 

inventory data into a computer maintained record. It may be that in some cases, other 

individuals would have selected other codes. In some cases, there are two or three parallel codes 

that describe the same sort of equipment, the difference being size. In other cases, one is able to 

select a general code for an overall process or use several more specific codes that together 

would be covered by the more general one. If, upon consideration, it appears that a more 

appropriate code could have been selected, that does not mean that the reported emissions are 

inaccurate. 

A listing of SCC with descriptions may be found in FIRE Version 5.0 Source Classification 

Codes and Emission Factor Listing for Criteria Air Pollutants, EPA-454/R-95-012. 

Occasionally, new SCC is defined so it may be useful to search the EPA’s website for new 

entries. 
Table 5.1. Catawba County Point Sources –Annual Emission (tons/year) 

Facility ID Facility Name 

Unit ID SCC 

2008 2011 2014 2017 2021 

NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 

3703500009 Maymead Materials, Inc. - Hickory Plant G-22 30500242 2 0 4 2 0 4 2 0 4 2 0 4 2 0 4 3703500009 Total 2 0 4 2 0 4 2 0 4 2 0 4 2 0 4 3703500025 Carolina Container Company G-1 30703099 0 3 0 0 3 0 0 3 0 0 3 0 0 3 0 

G-25 10300602 2 0 0 2 0 0 2 0 0 2 0 0 2 0 0 

3703500025 Total 2 3 0 2 3 0 2 3 0 2 3 0 2 3 0 3703500031 Carpenter Company Conover G-10 39000699 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-11 10500113 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-13 39000699 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-2 20100202 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-8 39000699 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR29 20100102 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR32 40188805 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3703500031 Total 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 3703500043 Century Furniture Industries, Inc., Plant #3 G-15 30703099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-51 40201901 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 G-53 10300601 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3703500043 Total 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 3703500044 Century Furniture Industries Plant #1 G-44 10300903 3 2 0 2 2 0 1 1 0 1 1 0 1 1 0 

G-45 10300903 3 2 0 2 2 0 1 1 0 1 1 0 1 1 0 G-46 30702002 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-47 40201901 0 5 0 0 5 0 0 5 0 0 4 0 0 4 0 

3703500044 Total 6 9 0 4 8 0 3 8 0 2 7 0 1 6 0 3703500073 Duke Energy Carolinas, LLC - Marshall Steam Station G-1 10100501 2703 1511 1384 2703 1511 1384 2703 1511 1384 2703 1511 1384 2703 1511 1384 

G-127 20200301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

 G-128 20200301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-129 20200301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

Point Source Emission Inventory Documentation 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 

Errata to the Redesignation Demonstration and Maintenance Plan 

 10 

 Appendix C.1 

December 22, 2010
Table 5.1. Catawba County Point Sources –Annual Emission (tons/year) – Continued

Facility ID Facility Name 

Unit ID SCC 

2008 2011 2014 2017 2021 

NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 

3703500073 Duke Energy Carolinas, LLC - Marshall Steam Station G-130 20200301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-131 20200301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-133 20200102 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-137 20200401 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-138 20200401 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-6 30531009 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 G-8 39999994 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 G-2 10100501 2003 1111 1026 2003 1111 1026 2003 1111 1026 2003 1111 1026 2003 1111 1026 G-33 20300101 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-4 10100501 4135 2034 1749 1376 2034 1749 1376 2034 1749 1376 2034 1749 1376 2034 1749 G-49 20200401 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-5 10100501 4380 2287 2015 4380 2287 2015 4380 2287 2015 4380 2287 2015 4380 2287 2015 G-50 20300101 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR2 20300101 13 1 1 13 1 1 13 1 1 13 1 1 13 1 1 

3703500073 Total 13234 6946 6175 10475 6946 6175 10475 6946 6175 10475 6946 6175 10475 6946 6175 3703500102 Hickory Chair Company G-1 10300903 9 5 0 9 5 0 10 5 0 10 5 0 11 5 0 

G-27 10300404 2 0 6 2 0 5 2 0 4 2 0 3 2 0 2 

3703500102 Total 11 5 6 11 5 5 12 5 4 12 5 3 13 5 2 3703500106 HWS Company Inc. dba Hickory White G-1 10300903 12 0 1 12 0 1 13 0 1 13 0 0 13 0 0 

G-3 10300602 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 G-4 10300602 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3703500106 Total 13 0 1 13 0 1 14 0 1 14 0 0 14 0 0 3703500159 Newton Wood Carving Company, Inc. G-1 30703002 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 3703500159 Total 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 3703500180 Progressive Furniture Inc G-38 30702099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-39 10200602 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-44 40201901 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 

Point Source Emission Inventory Documentation 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 

Errata to the Redesignation Demonstration and Maintenance Plan 

 11 

 Appendix C.1 

December 22, 2010
Table 5.1. Catawba County Point Sources –Annual Emission (tons/year) – Continued

Facility ID Facility Name 

Unit ID SCC 

2008 2011 2014 2017 2021 

NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 

3703500180 Progressive Furniture Inc G-45 40201901 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-7 40201901 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR2 30702099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR3 30702099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR4 30702099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR5 30702099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3703500180 Total 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 3703500184 Plastic Packaging Inc G-61 39000699 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 3703500184 Total 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 3703500186 Quaker Furniture, Incorporated dba Studio Q Furniture G-1 30703002 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

GR6 10300603 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 

3703500186 Total 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 3703500202 Sherrill Furniture Company, Inc. G-10 10300603 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 3703500202 Total 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 3703500206 Shurtape Technologies - Hickory/Highland Plt G-100 10200603 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-16 10200602 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-167 40201301 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0  40299999 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 G-169 40201301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3703500206 Shurtape Technologies - Hickory/Highland Plt G-208 40201301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-226 20100202 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-77 10200603 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-78 10200603 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-85 40201301 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-86 40201301 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 G-87 40201301 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 G-97 10200602 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 

3703500206 Shurtape Technologies -Hickory/Highland G-98 10200602 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

Point Source Emissions Inventory Documentation 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 

Redesignation Demonstration and Maintenance Plan

 12 

 Appendix C.1 

December 18, 2009
Table 5.1. Catawba County Point Sources –Annual Emission (tons/year) – Continued

Facility ID Facility Name 

Unit ID SCC 

2008 2011 2014 2017 2021 

NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 

3703500533 Total 0 1 1 0 1 1 0 1 1 0 1 1 0 1 1 County Grand Total 13310 6976 6189 10549 6975 6187 10548 6975 6186 10548 6973 6184 10548 6971 6183

Point Source Emission Inventory Documentation 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 

Errata to the Redesignation Demonstration and Maintenance Plan 

 15 

 Appendix C.1 

December 22, 2010
Table 5.2. Davidson County Point Sources –Annual Emission (tons/year) 

Facility ID Facility Name 

Unit ID SCC Code 

2008 2011 2014 2017 2021 

NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 NOx 

PM25-PRI SO2 

3705700023 

Stanley Furniture Company - Lexington Mfg G-36 10200906 15 0 0 15 0 0 15 0 0 15 0 0

15 0 0 

 10201201 0 9 1 0 9 1 0 9 1 0 9 1 0 9 1 

3705700023 Total 15 9 1 15 9 1 15 9 1 15 9 1 15 9 1 3705700048 Dimension Milling Company, Inc. G-2 10200906 7 3 0 7 3 0 7 3 0 7 3 0 7 3 0 3705700048 Total 7 3 0 7 3 0 7 3 0 7 3 0 7 3 0 3705700049 Linwood Furniture, Inc. G-48 10200906 2 1 0 2 1 0 2 1 0 2 1 0 2 1 0 

G-49 10200906 9 2 0 9 2 0 9 2 0 9 2 0 9 2 0 G-67 40201901 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 G-68 30703099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3705700049 Total 11 4 1 11 4 1 11 4 1 11 4 1 11 4 1 3705700076 

T I Industries 

G-3 10200906 3 1 0 3 1 0 2 1 0 2 1 0 2 0 0 G-66 30703099 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-79 40201901 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-88 40201901 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

3705700076 Total 3 2 0 3 1 0 2 1 0 2 1 0 2 1 0 3705700096 Leggett & Platt, Inc. - Metal Bed Rail G-2 10300603 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 

G-3 10300603 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G-5 10300501 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 GR3 10300603 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 GR4 10300603 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 

3705700096 Total 3 0 0 3 0 0 3 0 0 3 0 0 3 0 0 3705700106 Owens-Brockway Glass Container Plt 6 G-19 31299999 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

G-26 30501402 105 14 43 109 14 42 114 14 42 119 14 41 125 14 40 G-27 30501402 231 23 47 240 23 46 251 23 45 261 23 45 276 23 44 G-28 30501402 292 37 69 304 37 68 317 37 67 331 37 67 349 36 65 G-29 30501410 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 G-32 30501416 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

Point Source Emissions Inventory Documentation 

Hickory and Greensboro/Winston Salem/High Point Annual-PM2.5 

Redesignation Demonstration and Maintenance Plan

 16 

 Appendix C.1 

December 18, 2009