# Appendix B Stakeholder Correspondence Regarding Motor Vehicle Emission BudgetsCorrespondence Regarding MVEBs i Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 Appendix B Redesignation Demonstration and Ma intenance Plan December 18, 2009 

### (This page intentionally left blank)Correspondence Regarding MVEBs ii Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 Appendix B Redesignation Demonstration and Ma intenance Plan December 18, 2009 

### Table of Contents Letter: 9/16/2005, B. Keith Overcash, NCDAQ’s re quest for comments on geographic extent for motor vehicle emissions budgets for attainment demonstrations ........................................1

Letter: 9/29/05, Lydia McIntyre, Greensboro Urban Area Metropolitan Pl anning Organization’s response letter to NCDA Q’s 9/16/2005 letter ......................................................................4

Email: 2/19/2006, Roland Tilley, Citizens for Sm art Growth’s response to NCDAQ’s 9/16/2005 letter ........................................................................................................................ .............5

Letter: 6/21/2006, B. Keith Overcash, Respons e to Lydia McIntyre’s 9/26/2005 letter .................6

Email: 1/29/2008, Phyllis D. Jones, request for co mments on Consultation Plan with MVEB for the Hickory NA Area ........................................................................................................... 7

Email: 1/29/2008, Phyllis D. Jones, request for co mments Consultation Plan with MVEB for the Triad NA Area ................................................................................................................. ....8

Motor Vehicle Emissions Budgets Consulta tion Plan: Mobile Model Settings ..............................9

Email: 1/29/2008, John Tippett, Greater Hic kory Metropolitan Planning Organization’s Response to the Motor Vehicle Emi ssions Budgets Consultation Plan .............................17Correspondence Regarding MVEBs iii Hickory and Greensboro/Winston-Salem/High Point Annual PM2.5 Appendix B Redesignation Demonstration and Ma intenance Plan December 18, 2009 

### (This page intentionally left blank)Consultation Plan with MVEB for the Hickory NA Area

1 of 1 2/13/2008 11:30 AM Subject: Consultation Plan with MVEB for the Hickory NA Area From: "Phyllis.D.Jones" <Phyllis.D.Jones@ncmail.net> Date: Tue, 29 Jan 2008 11:12:17 -0500 To: john.tippett@wpcog.org, john.marshall@wpcog.org, lnguyen@dot.state.nc.us, sarahsmith@dot.state.nc.us, "Alena Cook \(Cook, Alena\)" <arcook@dot.state.nc.us>, "Stark, Jill" <Jill.Stark@fhwa.dot.gov> CC: "Dancausse, Edward" <edward.dancausse@fhwa.dot.gov>, george.bridgers@ncmail.net, janice.godfrey@ncmail.net, keith.melton@dot.gov, tarellano@dot.state.nc.us, Wood.Amanetta@epamail.epa.gov, Benjamin.Lynorae@epamail.epa.gov, ward.nacosta@epa.gov, Laura Boothe <laura.boothe@ncmail.net>

Good Morning All,

As you know, the NCDAQ is planning on pursuing insignificance for Primary PM_2.5 , NOx, NH_3 , SO_2 , VOC and road dust for the Hickory NA area. When the NCDAQ submits the PM_2.5 SIP for public comment (currently scheduled for 2/11/08), the draft SIP will have two options, one with a Primary PM_2.5 MVEB for Catawba County, and an option without a MVEB. If the option without a MVEB is not approved by EPA, the NCDAQ will have to establish a MVEB for Catawba County. Attached is the consultation plan outlining the MOBILE6.2 parameters used to develop the Primary PM_2.5 MVEB for the Hickory NA area with the MVEB for Catawba County. The MVEB is calculated using the latest speeds, VMT, vehicle age distribution and vehicle count data (used to calculate the vehicle mix) supplied by NCDOT.

MOBILE6.2 is insensitive to the such parameters as temperature, RVP, anti-tampering and I/M commands when calculating PM_2.5 emission factors, therefore, the Primary PM_2.5 emission factor was calculated for a typical summer day (using summertime temperatures, RVP, etc.) and multiplied by 365 days to calculate an annual emission of kg/year. We performed various sensitivity runs with MOBILE6.2 to verify this.

Please provide comments to me by **2/05/08**. I can be reached via phone at 919-715-1246 or e-mail Phyllis.D.Jones@ncmail.net

.

Thanks, Phyllis D. Jones, EIT Environmental Engineer II NCDENR, Division of Air Quality 1641 MSC, Raleigh, NC 27699 Phone-(919) 715-1246 Fac-(919) 715-7476

www.ncair.org

PM2.5 SIP MVEB Mobile inputs.doc Content-Type: application/msword Content-Encoding: base64Consultation Plan with MVEB for the Triad NA Area

1 of 1 2/13/2008 11:31 AM Subject: Consultation Plan with MVEB for the Triad NA Area From: "Phyllis.D.Jones" <Phyllis.D.Jones@ncmail.net> Date: Tue, 29 Jan 2008 10:53:05 -0500 To: Scott Rhine <scottr@partnc.org> CC: Eddie Dancausse <edward.dancausse@fhwa.dot.gov>, Lynorae Benjamin <Benjamin.Lynorae@epamail.epa.gov>, "Terry Arellano, PE" <tarellano@dot.state.nc.us>, George Bridgers <George.Bridgers@ncmail.net>, Amanetta Wood <Wood.Amanetta@epamail.epa.gov>, ward.nacosta@epa.gov, Laura Boothe <laura.boothe@ncmail.net>, Janice Godfrey <Janice.Godfrey@ncmail.net>

Good Morning Scott,

As you know, the NCDAQ is planning on pursuing insignificance for Primary PM_2.5 , NOx, NH_3 , SO_2 , VOC and road dust for the Triad NA area. When the NCDAQ submits the PM_2.5 SIP for public comment (currently scheduled for 2/11/08), the draft SIP will have two options, one with a Primary PM_2.5 MVEB for Davidson and Guilford Counties, and an option without MVEBs. If the option without MVEBs is not approved by EPA, the NCDAQ will have to establish MVEBs for Davidson and Guilford Counties. Attached is the consultation plan outlining the MOBILE6.2 parameters used to develop the Primary PM_2.5 MVEBs for the Triad NA area with MVEBs for each county. The MVEBs are calculated using the latest speeds, VMT, vehicle age distribution and vehicle count data (used to calculate the vehicle mix) supplied by NCDOT.

I would like to note that there are slight differences in the MOBILE6.2 parameters used to develop the MVEBs and the current conformity demonstration. MOBILE6.2 is insensitive to the such parameters as temperature, RVP, anti-tampering and I/M commands when calculating PM_2.5 emission factors. We performed various sensitivity runs with MOBILE6.2 to verify this. Therefore, the Primary PM_2.5 emission factors were calculated for a typical summer day (using summertime temperatures, RVP, etc.) and multiplied by 365 days to calculate an annual emissions of kg/year.

Can you please share this with the Triad NA area partners? Please provide comments to me by **2/05/08**. I can be reached via phone at 919-715-1246 or e-mail Phyllis.D.Jones@ncmail.net

.

Thanks, Phyllis D. Jones, EIT Environmental Engineer II NCDENR, Division of Air Quality 1641 MSC, Raleigh, NC 27699 Phone-(919) 715-1246 Fac-(919) 715-7476

www.ncair.org

--

************************************************************************************* E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. *************************************************************************************

PM2.5 SIP MVEB Mobile inputs.doc Content-Type: application/msword Content-Encoding: base64

### 1 Mobile Model Settings for De veloping the 2009 MVEB in the PM 2.5 

### Attainment Demonstration for Catawba, Davidson, and Guilford Counties

Parameter Details

a. Emissions Model Version(s): MOBILE6.2 b. Emission Model Runs: Average annual weekday.

c. Time Periods: Used daily data from TRM and Rural areas to calculate the annual emissions. d. Pollutants Reported: PM 2.5



### e. Emissions Budget Year: 2009 f. Vehicle Classes: 16 g. Max/Min Temperatures: Annual average 2002 max/min temperatures based upon the data from the Hickory Regional Air port (KHKY) and the Piedmont Triad International Airport (KGSO).

County 2002 Annual Average Max (F) 2002 Annual Average Min (F) Catawba 70 50 Davidson 70 49 Guilford 70 49

h

. VMT Mix: 2009 statewide vehicle mix based upon the 2006 count data provided by NCDOT using the method in the August 2004 USEPA Emissions Inventory Technical Guidance.

2009 State Vehicle Mix

**Rural LDV LDT1 LDT2 LDT3 LDT4 HDV2B HDV3 HDV4**  **HDV5 HDV6 HDV7 HDV8a HDV8b HDBS HDBT MC**

**Interstate** 0.3030 0.0718 0.2389 0.0736 0.0339 0.0880 0.0086 0.0072 0.0054 0.0197 0.0233 0.0253 0.0900 0.0045 0.0023 0.0045 **Principal Arterial** 0.3591 0.0851 0.2833 0.0873 0.0401 0.0448 0.0044 0.0037 0.0028 0.0100 0.0119 0.0129 0.0458 0.0023 0.0012 0.0053 **Minor Arterial** 0.3668 0.0869 0.2894 0.0892 0.0410 0.0389 0.0038 0.0032 0.0024 0.0087 0.0103 0.0112 0.0398 0.0020 0.0010 0.0054 **Major Collector** 0.3827 0.0906 0.3018 0.0930 0.0428 0.0267 0.0026 0.0022 0.0017 0.0060 0.0071 0.0077 0.0274 0.0014 0.0007 0.0056 **Minor Collector** 0.3821 0.0905 0.3014 0.0929 0.0427 0.0272 0.0027 0.0022 0.0017 0.0061 0.0072 0.0078 0.0278 0.0014 0.0007 0.0056 **Local** 0.3805 0.0901 0.3001 0.0925 0.0425 0.0284 0.0028 0.0023 0.0018 0.0064 0.0075 0.0082 0.0291 0.0015 0.0007 0.0056

**Urban LDV LDT1 LDT2 LDT3 LDT4 HDV2B HDV3 HDV4**  **HDV5 HDV6 HDV7 HDV8a HDV8b HDBS HDBT MC**

**Interstate** 0.3442 0.0815 0.2714 0.0836 0.0384 0.0564 0.0055 0.0046 0.0035 0.0126 0.0149 0.0162 0.0577 0.0029 0.0015 0.00512 **Freeway** 0.3699 0.0876 0.2918 0.0899 0.0413 0.0366 0.0036 0.0030 0.0023 0.0082 0.0097 0.0105 0.0374 0.0019 0.0009 0.0054 **Principal Arterial** 0.3837 0.0909 0.3026 0.0933 0.0429 0.0260 0.0025 0.0021 0.0016 0.0058 0.0069 0.0075 0.0266 0.0013 0.0007 0.0056 **Minor Arterial** 0.3930 0.0931 0.3100 0.0956 0.0439 0.0188 0.0018 0.0015 0.0012 0.0042 0.0050 0.0054 0.0192 0.0010 0.0005 0.0058 **Collector** 0.3967 0.0939 0.3127 0.0964 0.0443 0.0161 0.0016 0.0013 0.0010 0.0036 0.0043 0.0046 0.0165 0.0008 0.0004 0.0058 **Local** 0.3872 0.0917 0.3054 0.0941 0.0433 0.0233 0.0023 0.0019 0.0014 0.0052 0.0062 0.0067 0.0238 0.0012 0.0006 0.0057

i. Speeds: From TDM and Rura l spreadsheet provided by NCDOT.

Catawba County Speeds Road Type Model Area Non-Model Area Rural Interstate 0 66 Rural Principal Arterial 0 47 Rural Minor Arterial 0 44 Rural Major Collector 0 43 Rural Minor Collector 0 42 Rural Local 0 42 Urban Interstate 60 63 Urban Freeway 57 56 Urban Principal Arterial 27 29 Urban Minor Arterial 29 32 Urban Collector 33 31 Urban Local 29 31

### 3 Davidson County Speeds Road Type Model Area Non-Model Area Rural Interstate 68 65 Rural Principal Arterial 60 44 Rural Minor Arterial 44 43 Rural Major Collector 44 43 Rural Minor Collector 48 42 Rural Local 46 42 Urban Interstate 66 62 Urban Freeway 52 56 Urban Principal Arterial 40 28 Urban Minor Arterial 40 32 Urban Collector 37 31 Urban Local 43 32

Guilford County Speeds Road Type Model Area Rural Interstate 59 Rural Principal Arterial 57 Rural Minor Arterial 45 Rural Major Collector 47 Rural Minor Collector 46 Rural Local 44 Urban Interstate 60 Urban Freeway 54 Urban Principal Arterial 40 Urban Minor Arterial 38 Urban Collector 38 Urban Local 37

j. Vehicle Age Distribution: Based on 2005 vehicle registration data provided by NCDOT. NCAge05.prn is used for Davidson and Catawba Counties and TrdAge05.prn is used for Guilford County.

NCAge05.prn

* MOBILE6 Vehicle Classes: * 1 LDV Light-Duty Vehicles (Passenger Cars) * 2 LDT1 Light-Duty Trucks 1 (0-6,000 lbs. GVWR, 0-3750 lbs. LVW) * 3 LDT2 Light Duty Trucks 2 (0-6,000 lbs. GVWR, 3751-5750 lbs. LVW) * 4 LDT3 Light Duty Trucks 3 (6,001-8500 lbs. GVWR, 0-3750 lbs. LVW) * 5 LDT4 Light Duty Trucks 4 (6,001-8500 lbs. GVWR, 3751-5750 lbs. LVW) * 6 HDV2B Class 2b Heavy Duty Vehicles (8501-10,000 lbs. GVWR) * 7 HDV3 Class 3 Heavy Duty Vehicles (10,001-14,000 lbs. GVWR) * 8 HDV4 Class 4 Heavy Duty Vehicles (14,001-16,000 lbs. GVWR) * 9 HDV5 Class 5 Heavy Duty Vehicles (16,001-19,500 lbs. GVWR) * 10 HDV6 Class 6 Heavy Duty Vehicles (19,501-26,000 lbs. GVWR)4 * 11 HDV7 Class 7 Heavy Duty Vehicles (26,001-33,000 lbs. GVWR) * 12 HDV8A Class 8a Heavy Duty Vehicles (33,001-60,000 lbs. GVWR) * 13 HDV8B Class 8b Heavy Duty Vehicles (>60,000 lbs. GVWR) * 14 HDBS School Busses * 15 HDBT Transit and Urban Busses * 16 MC Motorcycles (All)

RESULTING MOBILE6-BASED REGISTRATION FRACTIONS

*

*MOBILE6 REGISTRATION FRACTIONS BY VEHICLE CLASS AND AGE * LDV M5 LDGV 1 0.061 0.064 0.063 0.065 0.064 0.072 0.069 0.063 0.061 0.056 0.061 0.049 0.043 0.035 0.029 0.025 0.023 0.019 0.015 0.011 0.009 0.006 0.004 0.002 0.030 * LDT1 M5 LDGT1 2 0.040 0.050 0.047 0.047 0.052 0.058 0.056 0.055 0.057 0.047 0.051 0.054 0.039 0.032 0.029 0.028 0.034 0.033 0.028 0.028 0.021 0.018 0.012 0.007 0.078 * LDT2 M5 LDGT1 3 0.040 0.050 0.047 0.047 0.052 0.058 0.056 0.055 0.057 0.047 0.051 0.054 0.039 0.032 0.029 0.028 0.034 0.033 0.028 0.028 0.021 0.018 0.012 0.007 0.078 * LDT3 M5 LDGT2 4 0.071 0.079 0.060 0.049 0.053 0.061 0.059 0.047 0.053 0.041 0.050 0.040 0.030 0.023 0.021 0.025 0.031 0.028 0.019 0.021 0.018 0.014 0.009 0.006 0.090 * LDT4 M5 LDGT2 5 0.071 0.079 0.060 0.049 0.053 0.061 0.059 0.047 0.053 0.041 0.050 0.040 0.030 0.023 0.021 0.025 0.031 0.028 0.019 0.021 0.018 0.014 0.009 0.006 0.090 * HDV2B M5 HDVs (Combined HDGV and HDDV) 6 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV3 M5 HDVs (Combined HDGV and HDDV) 7 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV4 M5 HDVs (Combined HDGV and HDDV) 8 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV5 M5 HDVs (Combined HDGV and HDDV) 9 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV6 M5 HDVs (Combined HDGV and HDDV) 10 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV7 M5 HDVs (Combined HDGV and HDDV) 11 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV8a M5 HDVs (Combined HDGV and HDDV) 12 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDV8b M5 HDVs (Combined HDGV and HDDV) 13 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116

### 5 * HDBS M5 HDVs (Combined HDGV and HDDV) 14 0.069 0.061 0.054 0.045 0.060 0.069 0.069 0.042 0.052 0.040 0.049 0.036 0.026 0.021 0.020 0.026 0.028 0.027 0.022 0.021 0.018 0.014 0.008 0.007 0.116 * HDBT M5 HDDVs 15 0.093 0.074 0.064 0.051 0.071 0.087 0.089 0.051 0.063 0.044 0.051 0.037 0.027 0.019 0.020 0.027 0.026 0.025 0.021 0.014 0.013 0.009 0.004 0.004 0.016 * Motorcycles M5 MC 16 0.122 0.092 0.104 0.087 0.076 0.066 0.056 0.042 0.038 0.037 0.028 0.024 0.019 0.013 0.010 0.010 0.010 0.010 0.011 0.018 0.016 0.013 0.013 0.015 0.070 

### TrdAge05.prn

* MOBILE6 Vehicle Classes: * 1 LDV Light-Duty Vehicles (Passenger Cars) * 2 LDT1 Light-Duty Trucks 1 (0-6,000 lbs. GVWR, 0-3750 lbs. LVW) * 3 LDT2 Light Duty Trucks 2 (0-6,000 lbs. GVWR, 3751-5750 lbs. LVW) * 4 LDT3 Light Duty Trucks 3 (6,001-8500 lbs. GVWR, 0-3750 lbs. LVW) * 5 LDT4 Light Duty Trucks 4 (6,001-8500 lbs. GVWR, 3751-5750 lbs. LVW) * 6 HDV2B Class 2b Heavy Duty Vehicles (8501-10,000 lbs. GVWR) * 7 HDV3 Class 3 Heavy Duty Vehicles (10,001-14,000 lbs. GVWR) * 8 HDV4 Class 4 Heavy Duty Vehicles (14,001-16,000 lbs. GVWR) * 9 HDV5 Class 5 Heavy Duty Vehicles (16,001-19,500 lbs. GVWR) * 10 HDV6 Class 6 Heavy Duty Vehicles (19,501-26,000 lbs. GVWR) * 11 HDV7 Class 7 Heavy Duty Vehicles (26,001-33,000 lbs. GVWR) * 12 HDV8A Class 8a Heavy Duty Vehicles (33,001-60,000 lbs. GVWR) * 13 HDV8B Class 8b Heavy Duty Vehicles (>60,000 lbs. GVWR) * 14 HDBS School Busses * 15 HDBT Transit and Urban Busses * 16 MC Motorcycles (All) * REG DIST * RESULTING MOBILE6-BASED REGISTRATION FRACTIONS * *MOBILE6 REGISTRATION FRACTIONS BY VEHICLE CLASS AND AGE * LDV M5 LDGV 1 0.071 0.067 0.067 0.069 0.069 0.076 0.073 0.066 0.062 0.055 0.059 0.046 0.040 0.032 0.026 0.023 0.020 0.016 0.012 0.009 0.007 0.005 0.003 0.001 0.024 * LDT1 M5 LDGT1 2 0.041 0.052 0.054 0.052 0.055 0.061 0.058 0.058 0.059 0.048 0.053 0.055 0.037 0.032 0.027 0.024 0.031 0.030 0.024 0.024 0.017 0.014 0.008 0.006 0.081 * LDT2 M5 LDGT1 3 0.041 0.052 0.054 0.052 0.055 0.061 0.058 0.058 0.059 0.048 0.053 0.055 0.037 0.032 0.027 0.024 0.031 0.030 0.024 0.024 0.017 0.014 0.008 0.006 0.081 * LDT3 M5 LDGT2 4 0.091 0.081 0.078 0.052 0.062 0.070 0.079 0.062 0.060 0.044 0.052 0.042 0.029 0.019 0.017 0.018 0.019 0.020 0.013 0.013 0.011 0.007 0.005 0.004 0.053 * LDT4 M5 LDGT2 5 0.091 0.081 0.078 0.052 0.062 0.070 0.079 0.062 0.060 0.044 0.052 0.042 0.029 0.019 0.017 0.018 0.019 0.020 0.013 0.013 0.011 0.007 0.005 0.004 0.053 * HDV2B M5 HDVs (Combined HDGV and HDDV) 6 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV3 M5 HDVs (Combined HDGV and HDDV) 7 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.0596 * HDV4 M5 HDVs (Combined HDGV and HDDV) 8 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV5 M5 HDVs (Combined HDGV and HDDV) 9 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV6 M5 HDVs (Combined HDGV and HDDV) 10 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV7 M5 HDVs (Combined HDGV and HDDV) 11 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV8a M5 HDVs (Combined HDGV and HDDV) 12 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDV8b M5 HDVs (Combined HDGV and HDDV) 13 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDBS M5 HDVs (Combined HDGV and HDDV) 14 0.098 0.084 0.063 0.052 0.076 0.094 0.084 0.046 0.054 0.040 0.046 0.031 0.022 0.017 0.015 0.019 0.022 0.018 0.016 0.015 0.011 0.008 0.005 0.005 0.059 * HDBT M5 HDDVs 15 0.114 0.090 0.059 0.056 0.082 0.102 0.100 0.047 0.055 0.045 0.049 0.033 0.023 0.018 0.018 0.021 0.022 0.016 0.015 0.011 0.008 0.006 0.002 0.002 0.008 * Motorcycles M5 MC 16 0.098 0.088 0.105 0.092 0.081 0.073 0.058 0.043 0.038 0.039 0.030 0.026 0.023 0.015 0.012 0.010 0.010 0.008 0.012 0.017 0.017 0.012 0.011 0.016 0.069

k. Anti-tampering Applicability: Applies to vehicles 35 years and newer starting with MY 1975. l

. RVP: RVP does not impact the MOBILE6.2 PM 2.5 emission factors, therefore, NCDAQ is using the summertime RVP.

County Average Annual RVP (psi) Catawba 9.0 Davidson 7.8 Guilford 7.8

m. I/M Fraction: Will assume 100 percent penetration since MOBILE6.2 PM 2.5 emission factors are not impacted by I/M.

n. Evaluation month: July

o. VMT: TRM and rural spreadsheet where applicable.

### 7 Catawba County VMT Road Type Model Area Non-Model Area Rural Interstate 0 56,490 Rural Principal Arterial 0 75,274 Rural Minor Arterial 0 73,290 Rural Major Collector 0 56,815 Rural Minor Collector 0 90,945 Rural Local 0 68,374 Urban Interstate 1,068,778 165,606 Urban Freeway 318,096 39,019 Urban Principal Arterial 762,827 167,088 Urban Minor Arterial 1,132,744 152,147 Urban Collector 261,444 26,271 Urban Local 514,186 123,328

Davidson County VMT Road Type Model Area Non-Model Area Rural Interstate 306,105 443,207 Rural Principal Arterial 249,163 287,385 Rural Minor Arterial 269,215 301,987 Rural Major Collector 172,846 427,935 Rural Minor Collector 156,314 215,492 Rural Local 301,453 157,910 Urban Interstate 333,251 371,816 Urban Freeway 676,186 199,204 Urban Principal Arterial 448,118 372,564 Urban Minor Arterial 293,172 298,549 Urban Collector 192,524 57,169 Urban Local 242,868 131,653

Guilford County VMT Road Type Model Area Rural Interstate 992,132 Rural Principal Arterial 587,329 Rural Minor Arterial 198,365 Rural Major Collector 688,901 Rural Minor Collector 289,515 Rural Local 440,324 Urban Interstate 4,925,953 Urban Freeway 2,341,290 Urban Principal Arterial 2,405,902 Urban Minor Arterial 2,698,219 Urban Collector 1,143,015 Urban Local 1,884,9218 p. Diesel Sulfur Content: USEPA Technical Guidance: Use of MOBILE6.2 for Emissions Inventory Preparation (August 2004).

County 2009 Diesel Sulfur (ppm) Catawba 43 Davidson 43 Guilford 43

s. Annual Emissions: Annual 2009 PM 2.5 emissions will be calculated by multiplying average daily county emissions by 365 days.

t. Emissions analysis units: Units = Kilograms/day

NOTE: NO x has been deemed insignificant fo r mobile; therefore there is no NO x MVEB.

MVEBs

County MVEB (Kilograms/year) Catawba 48,132

Davidson 71,152

Guilford 164,286