APPENDIX 12 DEVELOPMENT OF THE STATEWIDE AIRCRAFT … · 2019-08-22 · appendix 12 development of...

APPENDIX 12

DEVELOPMENT OF THE STATEWIDE AIRCRAFT INVENTORY FOR 2020

DALLAS-FORT WORTH AND HOUSTON-GALVESTON-BRAZORIA SERIOUS CLASSIFICATION REASONABLE FURTHER PROGRESS STATE IMPLEMENTATION PLAN REVISION FOR THE 2008 EIGHT-HOUR OZONE NATIONAL AMBIENT AIR QUALITY

STANDARD

PROJECT NUMBER 2019-079-SIP-NR

Development of the Statewide Aircraft Inventory for 2020 Final

Prepared for: Texas Commission on Environmental Quality Air Quality Division Prepared by: Eastern Research Group, Inc.

May 13, 2019

Eastern Research Group, Inc.

ERG No. 0345.00.019

DEVELOPMENT OF THE STATEWIDE AIRCRAFT INVENTORY FOR 2020

TCEQ Contract No. 582-15-50416 Work Order No. 582-18-82508-19

Prepared for:

Cody McLain Texas Commission on Environmental Quality

Bldg. E, Room 335S Austin, Texas 78711-3087

Prepared by:

Roger Chang

Eastern Research Group, Inc. 1600 Perimeter Park Drive

Suite 200 Morrisville, North Carolina 27560

May 13, 2019

i

Table of Contents

1.0 Executive Summary ............................................................................................ 1-1

2.0 Emission Projection Procedures ........................................................................ 2-1

3.0 Summary of Texas Airport Emissions ............................................................... 3-1

4.0 References .......................................................................................................... 4-1

Appendix A Projection Factors ..................................................................................... A-1

Appendix B Quality Assurance ...................................................................................... B-1

ii

List of Tables

Table 3-1. Controlled and Uncontrolled Daily Criteria Emissions (Tons Per Day) ........ 3-1

Table 3-2. Controlled Daily Criteria Emissions by Type (Tons Per Day) ........................ 3-1

Table 3-3. Uncontrolled Daily Criteria Emissions by Type (Tons Per Day) ................... 3-1

Table 3-4. Controlled Daily Criteria Emission by County (Tons Per Day) ..................... 3-2

Table 3-5. Uncontrolled Daily Criteria Emission by County (Tons Per Day) .................3-9

Table A-1. Projection Factors ........................................................................................... A-1

Table B-1. Counties with the Highest Absolute Percent Changes in Emissions ............ B-7

Table B-2. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties ........................................................................................ B-8

Table B-3. Example Comparison for 2011 Inventory between AEDT and EDMS at the Airport, Aircraft, Engine, and Pollutant Level .............................................................. E-10

Table B-4. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations .................................................... B-12

Table B-5. Airport/SCC Combinations Within the Top 25 Airports with the Highest Activity ............................................................................................................................ B-13

Table B-6. Comparison of Revised Military Criteria Emission Factors1 to the Previous Generic Military Emission Factors2 (tons/LTO)* ........................................................ B-20

Table B-7. Comparison to Confirm All Aircraft Were Included in the New Inventory B-21

Table B-8. Airports in the 2011 Inventory that were not included in the 2017 Inventory (closed) .......................................................................................................................... B-29

Table B-9. Airports (Opened) in 2017 That Did Not Have Activity in 2011 .................. B-31

Table B-10. Counties with The Highest Absolute Percent Changes in Emissions ....... B-42

Table B-11. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties ...................................................................................... B-44

Table B-12. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations ................................................... B-45

Table B-13. Airport/SCC Combinations Within the Top 25 Airports the Highest Activity ....................................................................................................................................... B-46

Table B-14. Comparison to Confirm All Aircraft Were Included in AEDT Run .......... B-54

Table B-15. Comparison of Controlled and Uncontrolled 2017 Emissions ................... B-61

Table B-16. Counties with the Highest Absolute Percent Changes in Emissions ........ B-62

Table B-17. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties. ............................................................................... B-63

Table B-18. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations. .................................................. B-64

Table B-19. Airport/SCC Combinations Within the Top 26 Airports the Highest Activity. ............................................................................................................ B-65

Table B-20. Comparison to Confirm All Aircraft Were Included in AEDT Run .......... B-72

Table B-21. Comparison of Controlled and Uncontrolled 2020 Emissions ................. B-79

1-1

1.0 Executive Summary

The purpose of this study is to develop a set of average summer weekday (tons per day) emission inventories (EI) for Texas airport activities based on a 2017 base year for the 2020 attainment year. The inventories include all counties in Texas and provide both controlled and uncontrolled ozone precursor emissions datasets.

Eastern Research Group (ERG) developed emissions inventories for criteria and hazardous air pollutants (HAPs). The inventory will be used to support the State Implementation Plan (SIP) and other airport-related inquiries.

The emissions associated with airport activities are attributed to the following sources with associated source classification codes (SCC):

Commercial aviation (SCC: 2275020000) Air taxis

Piston driven (SCC: 2275060011) Turbine driven (SCC: 2275060012)

General aviation Piston driven (SCC: 2275050011) Turbine driven (SCC: 2275050012)

Military (SCC: 2275001000) Auxiliary Power Units (SCC: 2275070000) Ground Support Equipment

Compressed natural gas (CNG)-fueled (SCC: 2268008005) Diesel-fueled (SCC: 2270008005) Gasoline-fueled (SCC: 2265008005) Liquefied petroleum gas (LPG)-fueled (SCC: 2267008005).

To estimate emissions from these sources, ERG projected the base year emissions inventory obtained for Work Order 582-18-82508-19 for calendar year 2017 which included controlled and uncontrolled emissions. The 2020 emissions were projected based on growth factors from the FAA’s 2017 TAF data1.

In 2017, general aviation aircraft outfitted with piston engines account for 50% of the total aircraft activities. Commercial aircraft, General aviation aircraft outfitted with jet engines, military aircraft, air taxi aircraft outfitted with jet engines, and air taxi aircraft outfitted with piston engines account for 20%, 19%, 7%, 3%, and 1% of the total aircraft activities, respectively. Harris County and Tarrant County had the highest aircraft activity, accounting for 13.4% and 12.8% respectively of all Texas activity.

2-1

2.0 Emission Projection Procedures

The 2017 base year controlled and uncontrolled inventories were projected to 2020 based on growth factors from the FAA’s 2017 TAF data1. The TAF data included aircraft operations data by airport and general aircraft type (AT, GA, MIL, AC). A takeoff and a landing are two separate operations, and the two operations combined equal an LTO cycle. Therefore, the operations data were converted into LTO data by dividing by 2. Growth factors were calculated by dividing the projected 2020 year LTO data by the 2017 base year LTO data. This provided growth factors by airport and generic aircraft type. Where the airport/generic aircraft type data did not link up to the base year inventory, generic aircraft type growth factors were developed. These factors are listed in Appendix A. Quality assurance checks implemented for this project are summarized in Appendix B.

These factors were then applied to the 2017 controlled and uncontrolled base year inventories to project the controlled and uncontrolled inventories for 2020. For more detailed information on the development of the 2017 base year inventories, please see the 2017 Texas Statewide Aircraft Emissions Inventory.

3-1

3.0 Summary of Texas Airport Emissions

The results of implementing the emissions projection procedures for the year 2020 are presented in Table 3-1 through Table 3-5.

Table 3-1. Controlled and Uncontrolled Daily Criteria Emissions (Tons Per Day)

Pollutant Controlled Emissions

Uncontrolled Emissions

CO 109.05 109.42

NOX 43.81 44.15

PM10-PRI 2.12 2.17

PM25-PRI 1.85 1.90

SO2 4.53 4.58

VOC 11.35 11.38

Table 3-2. Controlled Daily Criteria Emissions by Type (Tons Per Day)

Type CO NOX PM10-PRI PM25-PRI SO2 VOC

Air Taxi, Piston 1.47 0.01 0.03 0.02 0.00 0.01

Air Taxi, Turbine 2.12 0.91 0.11 0.11 0.13 0.41

APU 0.64 0.52 0.08 0.08 0.08 0.05

Commercial 34.30 31.24 0.22 0.22 3.24 4.35

General Aviation, Piston 39.71 0.21 0.76 0.53 0.03 0.50

General Aviation, Turbine 12.26 0.47 0.28 0.28 0.11 1.09

GSE 7.39 0.86 0.04 0.04 0.04 0.26

Military 11.16 9.59 0.60 0.58 0.91 4.67

Total 109.05 43.81 2.12 1.85 4.53 11.35

Table 3-3. Uncontrolled Daily Criteria Emissions by Type (Tons Per Day)

Type CO NOX PM10-PRI PM25-PRI SO2 VOC

Air Taxi, Piston 1.47 0.01 0.03 0.02 0.00 0.01

Air Taxi, Turbine 2.12 0.91 0.11 0.11 0.13 0.41

APU 1.00 0.86 0.12 0.12 0.13 0.08

Commercial 34.30 31.24 0.22 0.22 3.24 4.35

General Aviation, Piston 39.71 0.21 0.76 0.53 0.03 0.50

General Aviation, Turbine 12.26 0.47 0.28 0.28 0.11 1.09

GSE 7.40 0.87 0.04 0.04 0.04 0.26

Military 11.16 9.59 0.60 0.58 0.91 4.67

Total 109.42 44.15 2.17 1.90 4.58 11.38

3-2

Table 3-4. Controlled Daily Criteria Emission by County (Tons Per Day)

County CO NOX PM10-PRI PM25-PRI SO2 VOC LTOAnderson 1.04E-01 2.19E-03 1.70E-03 2.01E-03 3.25E-04 3.11E-03 1.82E+01

Andrews 8.07E-02 1.69E-03 1.30E-03 9.77E-04 1.98E-04 2.14E-03 1.42E+01

Angelina 4.87E-01 1.40E-02 1.18E-02 6.54E-02 6.94E-03 4.17E-02 8.08E+01

Aransas 6.05E-01 2.60E-02 2.46E-02 3.54E-01 3.37E-02 1.76E-01 6.60E+01

Archer 3.33E-02 7.01E-04 5.48E-04 4.36E-04 8.95E-05 9.53E-04 5.92E+00

Armstrong 4.72E-03 9.31E-05 6.42E-05 2.56E-05 3.93E-06 5.92E-05 7.86E-01

Atascosa 8.65E-02 2.49E-03 2.14E-03 1.74E-02 1.74E-03 9.88E-03 1.34E+01

Austin 3.96E-02 8.10E-04 6.01E-04 3.81E-04 7.33E-05 8.46E-04 6.85E+00

Bailey 5.47E-02 1.16E-03 9.06E-04 7.33E-04 1.51E-04 1.60E-03 9.76E+00

Bandera 1.47E-02 2.91E-04 2.04E-04 9.27E-05 1.54E-05 2.12E-04 2.46E+00

Bastrop 3.87E-01 3.77E-04 3.30E-04 1.21E-03 3.99E-04 4.85E-03 3.38E+01

Baylor 2.49E-02 5.19E-04 4.00E-04 3.01E-04 6.08E-05 6.60E-04 4.39E+00

Bee 6.45E-02 1.35E-03 1.04E-03 7.78E-04 1.57E-04 1.71E-03 1.14E+01

Bell 9.16E-01 2.74E-02 2.45E-02 2.90E-01 3.05E-02 1.36E-01 1.27E+02

Bexar 4.39E+00 7.11E-02 6.25E-02 2.10E+00 2.18E-01 4.45E-01 4.61E+02

Blanco 1.37E-02 2.70E-04 1.86E-04 7.42E-05 1.14E-05 1.72E-04 2.28E+00

Bosque 6.29E-02 1.30E-03 9.88E-04 7.00E-04 1.39E-04 1.54E-03 1.10E+01

Bowie 3.65E-03 7.19E-05 4.96E-05 1.98E-05 3.04E-06 4.57E-05 6.08E-01

Brazoria 1.67E+00 3.72E-02 2.92E-02 4.38E-02 6.51E-03 5.56E-02 2.94E+02

Brazos 7.52E-01 2.49E-02 2.26E-02 2.68E-01 2.76E-02 1.35E-01 9.99E+01

Brewster 8.81E-02 1.86E-03 1.44E-03 1.79E-03 2.79E-04 2.63E-03 1.54E+01

Briscoe 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Brooks 4.60E-02 9.59E-04 7.35E-04 5.43E-04 1.09E-04 1.19E-03 8.10E+00

Brown 1.97E-01 4.44E-03 3.50E-03 7.26E-03 9.82E-04 7.59E-03 3.47E+01

Burleson 2.53E-02 5.27E-04 4.05E-04 3.04E-04 6.13E-05 6.66E-04 4.45E+00

Burnet 3.03E-01 6.65E-03 5.21E-03 1.26E-02 1.55E-03 1.20E-02 5.22E+01

Caldwell 7.56E-01 1.65E-02 1.29E-02 2.15E-02 3.03E-03 2.60E-02 1.32E+02

Calhoun 1.15E-01 3.27E-03 2.82E-03 2.40E-02 2.39E-03 1.35E-02 1.76E+01

Callahan 5.15E-03 1.02E-04 7.11E-05 3.07E-05 4.97E-06 7.05E-05 8.62E-01

Cameron 1.75E+00 6.31E-02 5.96E-02 1.11E+00 1.07E-01 4.33E-01 1.89E+02

Camp 2.59E-03 5.33E-05 4.02E-05 2.75E-05 5.40E-06 6.06E-05 4.51E-01

Carson 4.34E-02 9.09E-04 7.02E-04 5.36E-04 1.09E-04 1.18E-03 7.68E+00

Cass 1.58E-01 3.31E-03 2.54E-03 1.90E-03 3.83E-04 4.16E-03 2.79E+01

Castro 2.36E-02 4.89E-04 3.71E-04 2.63E-04 5.23E-05 5.79E-04 4.13E+00

Chambers 1.66E-01 3.46E-03 2.66E-03 2.00E-03 4.03E-04 4.38E-03 2.92E+01

Cherokee 1.77E-01 3.72E-03 2.88E-03 2.90E-03 5.03E-04 5.05E-03 3.11E+01

Childress 2.66E-02 5.57E-04 4.30E-04 3.28E-04 6.66E-05 7.19E-04 4.71E+00

3-3


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Clay 3.65E-02 7.76E-04 6.15E-04 5.16E-04 1.07E-04 1.12E-03 6.56E+00

Cochran 9.32E-03 1.95E-04 1.50E-04 1.13E-04 2.28E-05 2.47E-04 1.64E+00

Coke 2.58E-03 5.39E-05 4.14E-05 3.10E-05 6.27E-06 6.81E-05 4.55E-01

Coleman 5.82E-02 1.22E-03 9.36E-04 7.05E-04 1.43E-04 1.55E-03 1.03E+01

Collin 1.44E+00 3.10E-02 2.41E-02 1.94E-02 3.85E-03 4.00E-02 2.55E+02

Collingsworth 3.21E-02 7.06E-04 5.55E-04 1.29E-03 1.63E-04 1.27E-03 5.56E+00

Colorado 1.09E-01 2.28E-03 1.76E-03 1.32E-03 2.66E-04 2.89E-03 1.93E+01

Comal 3.13E-01 6.52E-03 5.00E-03 3.71E-03 7.47E-04 8.14E-03 5.51E+01

Comanche 7.66E-02 1.60E-03 1.23E-03 9.19E-04 1.86E-04 2.02E-03 1.35E+01

Cooke 2.42E-01 5.10E-03 3.92E-03 4.33E-03 7.07E-04 6.90E-03 4.24E+01

Coryell 1.21E-01 2.71E-03 2.14E-03 5.98E-03 7.14E-04 5.28E-03 2.09E+01

Cottle 9.47E-03 1.98E-04 1.52E-04 1.14E-04 2.30E-05 2.50E-04 1.67E+00

Crane 1.08E-02 2.24E-04 1.73E-04 1.29E-04 2.61E-05 2.84E-04 1.90E+00

Crockett 6.51E-02 1.40E-03 1.09E-03 1.91E-03 2.62E-04 2.23E-03 1.13E+01

Crosby 4.73E-02 1.01E-03 7.99E-04 6.77E-04 1.41E-04 1.47E-03 8.51E+00

Culberson 8.57E-03 2.93E-04 2.62E-04 3.11E-03 2.98E-04 1.59E-03 1.14E+00

Dallam 2.29E-02 4.79E-04 3.70E-04 2.83E-04 5.75E-05 6.20E-04 4.05E+00

Dallas 6.27E+00 1.05E-01 8.95E-02 2.13E+00 2.30E-01 4.71E-01 7.74E+02

Dawson 1.13E-01 2.36E-03 1.82E-03 1.38E-03 2.78E-04 3.02E-03 2.00E+01

Deaf Smith 1.08E-01 2.28E-03 1.76E-03 1.89E-03 3.16E-04 3.10E-03 1.89E+01

Delta 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Denton 2.79E+00 5.73E-02 4.19E-02 2.80E-02 4.91E-03 5.56E-02 4.77E+02

DeWitt 3.71E-03 7.70E-05 5.86E-05 4.19E-05 8.34E-06 9.21E-05 6.51E-01

Dickens 3.09E-03 6.08E-05 4.20E-05 1.67E-05 2.57E-06 3.87E-05 5.14E-01

Dimmit 2.35E-02 4.88E-04 3.73E-04 2.72E-04 5.46E-05 5.99E-04 4.12E+00

Donley 1.49E-02 3.12E-04 2.40E-04 1.80E-04 3.64E-05 3.95E-04 2.63E+00

Duval 1.96E-02 3.99E-04 2.95E-04 1.85E-04 3.55E-05 4.12E-04 3.37E+00

Eastland 8.59E-02 1.79E-03 1.38E-03 1.03E-03 2.09E-04 2.27E-03 1.52E+01

Ector 4.11E-01 8.59E-03 6.61E-03 4.98E-03 1.01E-03 1.09E-02 7.26E+01

Edwards 1.02E-02 2.07E-04 1.51E-04 8.93E-05 1.67E-05 1.99E-04 1.75E+00

El Paso 1.91E+00 4.27E-02 3.88E-02 9.23E-01 9.49E-02 2.76E-01 2.10E+02

Ellis 3.82E-01 8.09E-03 6.26E-03 7.89E-03 1.23E-03 1.16E-02 6.69E+01

Erath 1.86E-01 3.91E-03 3.00E-03 2.81E-03 5.00E-04 5.11E-03 3.27E+01

Falls 4.01E-03 8.20E-05 6.08E-05 3.87E-05 7.45E-06 8.59E-05 6.92E-01

Fannin 1.21E-01 2.50E-03 1.90E-03 1.36E-03 2.71E-04 2.99E-03 2.12E+01

Fayette 9.83E-02 2.04E-03 1.55E-03 1.11E-03 2.22E-04 2.45E-03 1.72E+01

Fisher 3.10E-02 6.47E-04 4.98E-04 3.73E-04 7.52E-05 8.17E-04 5.47E+00

Floyd 5.26E-02 1.09E-03 8.36E-04 6.12E-04 1.23E-04 1.34E-03 9.24E+00

3-4


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Foard 3.81E-03 8.01E-05 6.23E-05 4.90E-05 1.00E-05 1.07E-04 6.77E-01

Fort Bend 1.04E+00 2.47E-02 1.97E-02 4.16E-02 5.51E-03 4.25E-02 1.83E+02

Franklin 5.75E-02 1.20E-03 9.30E-04 7.12E-04 1.45E-04 1.56E-03 1.02E+01

Freestone 1.24E-02 2.58E-04 1.98E-04 1.49E-04 3.00E-05 3.26E-04 2.18E+00

Frio 4.24E-02 8.82E-04 6.76E-04 4.99E-04 1.00E-04 1.09E-03 7.45E+00

Gaines 1.44E-01 3.04E-03 2.34E-03 1.76E-03 3.56E-04 3.81E-03 2.53E+01

Galveston 3.18E-01 9.62E-03 8.16E-03 2.55E-02 3.13E-03 2.06E-02 5.67E+01

Garza 8.14E-03 1.66E-04 1.23E-04 7.80E-05 1.50E-05 1.73E-04 1.41E+00

Gillespie 1.40E-01 3.08E-03 2.39E-03 4.31E-03 5.80E-04 4.82E-03 2.44E+01

Glasscock 2.37E-03 4.68E-05 3.23E-05 1.28E-05 1.98E-06 2.97E-05 3.95E-01

Gonzales 1.88E-02 3.92E-04 3.00E-04 2.21E-04 4.45E-05 4.86E-04 3.31E+00

Gray 1.75E-01 3.66E-03 2.81E-03 2.12E-03 4.28E-04 4.65E-03 3.09E+01

Grayson 8.35E-01 1.76E-02 1.35E-02 1.31E-02 2.29E-03 2.32E-02 1.47E+02

Gregg 5.84E-01 1.79E-02 1.55E-02 1.02E-01 1.06E-02 5.90E-02 9.62E+01

Grimes 4.06E-02 8.47E-04 6.51E-04 4.89E-04 9.87E-05 1.07E-03 7.15E+00

Guadalupe 6.24E-01 1.68E-02 1.41E-02 9.76E-02 9.91E-03 5.82E-02 9.96E+01

Hale 6.62E-02 1.42E-03 1.09E-03 2.05E-03 2.67E-04 2.22E-03 1.14E+01

Hall 9.32E-03 1.95E-04 1.50E-04 1.13E-04 2.28E-05 2.47E-04 1.64E+00

Hamilton 5.86E-02 1.25E-03 9.57E-04 7.11E-04 1.42E-04 1.52E-03 1.03E+01

Hansford 2.42E-01 5.06E-03 3.89E-03 2.93E-03 5.93E-04 6.43E-03 4.27E+01

Hardeman 3.42E-02 7.14E-04 5.49E-04 4.14E-04 8.36E-05 9.07E-04 6.03E+00

Hardin 3.34E-02 6.99E-04 5.40E-04 4.12E-04 8.37E-05 9.04E-04 5.91E+00

Harris 1.28E+01 2.07E-01 1.85E-01 8.80E+00 7.82E-01 1.37E+00 1.59E+03

Harrison 1.36E-01 2.85E-03 2.21E-03 1.71E-03 3.48E-04 3.74E-03 2.41E+01

Hartley 8.96E-02 1.96E-03 1.54E-03 3.35E-03 4.29E-04 3.42E-03 1.55E+01

Haskell 1.86E-02 3.89E-04 3.00E-04 2.26E-04 4.56E-05 4.95E-04 3.29E+00

Hays 1.45E-02 2.89E-04 2.03E-04 9.21E-05 1.53E-05 2.10E-04 2.44E+00

Hemphill 5.29E-02 1.10E-03 8.42E-04 6.19E-04 1.24E-04 1.36E-03 9.30E+00

Henderson 1.06E-01 2.28E-03 1.77E-03 2.76E-03 3.92E-04 3.44E-03 1.85E+01

Hidalgo 1.18E+00 2.74E-02 2.35E-02 3.35E-01 3.60E-02 1.10E-01 1.63E+02

Hill 1.05E-01 2.18E-03 1.66E-03 1.20E-03 2.39E-04 2.63E-03 1.84E+01

Hockley 1.10E-01 2.31E-03 1.78E-03 1.35E-03 2.73E-04 2.95E-03 1.95E+01

Hood 2.84E-01 5.91E-03 4.51E-03 3.29E-03 6.59E-04 7.23E-03 4.99E+01

Hopkins 2.67E-01 5.62E-03 4.33E-03 3.85E-03 7.13E-04 7.38E-03 4.71E+01

Houston 7.56E-02 1.57E-03 1.21E-03 8.93E-04 1.80E-04 1.96E-03 1.33E+01

Howard 1.95E-01 4.72E-03 3.85E-03 1.93E-02 2.05E-03 1.30E-02 3.24E+01

Hudspeth 2.45E-02 5.13E-04 3.96E-04 3.02E-04 6.12E-05 6.61E-04 4.33E+00

Hunt 3.53E-01 8.58E-03 7.00E-03 3.62E-02 3.81E-03 2.40E-02 5.83E+01

3-5


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Hutchinson 7.78E-02 1.63E-03 1.26E-03 1.09E-03 2.04E-04 2.14E-03 1.37E+01

Irion 1.55E-03 3.06E-05 2.11E-05 8.40E-06 1.29E-06 1.94E-05 2.58E-01

Jack 2.45E-02 5.06E-04 3.81E-04 2.62E-04 5.17E-05 5.79E-04 4.27E+00

Jackson 1.57E-01 3.39E-03 2.71E-03 4.01E-03 6.24E-04 5.62E-03 2.79E+01

Jasper 1.57E-01 3.28E-03 2.53E-03 1.90E-03 3.84E-04 4.17E-03 2.77E+01

Jeff Davis 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Jefferson 3.62E-01 8.90E-03 7.42E-03 4.48E-02 5.22E-03 2.62E-02 5.90E+01

Jim Hogg 5.22E-03 1.07E-04 8.00E-05 5.27E-05 1.02E-05 1.17E-04 9.06E-01

Jim Wells 4.07E-01 2.02E-02 1.94E-02 3.07E-01 2.90E-02 1.50E-01 3.64E+01

Johnson 3.13E-01 6.59E-03 5.03E-03 3.98E-03 7.53E-04 8.00E-03 5.49E+01

Jones 8.14E-02 1.70E-03 1.30E-03 9.67E-04 1.95E-04 2.12E-03 1.43E+01

Karnes 8.28E-02 3.71E-03 3.52E-03 5.27E-02 5.00E-03 2.59E-02 8.46E+00

Kaufman 3.02E-01 6.32E-03 4.87E-03 3.70E-03 7.48E-04 8.08E-03 5.33E+01

Kendall 6.06E-03 1.19E-04 8.23E-05 3.28E-05 5.04E-06 7.59E-05 1.01E+00

Kenedy 1.53E-03 3.02E-05 2.08E-05 8.30E-06 1.28E-06 1.92E-05 2.55E-01

Kent 5.17E-02 1.08E-03 8.29E-04 6.21E-04 1.25E-04 1.36E-03 9.12E+00

Kerr 5.24E-01 1.09E-02 8.39E-03 6.31E-03 1.27E-03 1.38E-02 9.23E+01

Kimble 6.08E-02 1.33E-03 1.04E-03 2.24E-03 2.89E-04 2.31E-03 1.06E+01

King 3.09E-03 6.08E-05 4.19E-05 1.67E-05 2.57E-06 3.86E-05 5.14E-01

Kinney 9.92E-03 1.95E-04 1.35E-04 5.37E-05 8.26E-06 1.24E-04 1.65E+00

Kleberg 6.54E-02 1.56E-03 1.26E-03 5.06E-03 5.62E-04 3.74E-03 1.11E+01

Knox 4.46E-02 9.29E-04 7.11E-04 5.23E-04 1.05E-04 1.15E-03 7.85E+00

La Salle 1.11E-01 3.50E-03 3.02E-03 3.45E-02 3.30E-03 1.78E-02 1.50E+01

Lamar 1.48E-01 3.20E-03 2.53E-03 2.78E-03 4.86E-04 4.71E-03 2.64E+01

Lamb 7.19E-02 1.52E-03 1.18E-03 1.28E-03 2.19E-04 2.15E-03 1.27E+01

Lampasas 9.11E-02 1.90E-03 1.45E-03 1.06E-03 2.12E-04 2.33E-03 1.60E+01

Lavaca 2.52E-02 5.26E-04 4.04E-04 3.00E-04 6.04E-05 6.58E-04 4.45E+00

Lee 1.11E-01 2.43E-03 1.90E-03 4.32E-03 5.42E-04 4.25E-03 1.92E+01

Leon 1.19E-02 2.37E-04 1.67E-04 7.79E-05 1.32E-05 1.77E-04 2.00E+00

Liberty 1.76E-01 3.93E-03 3.10E-03 8.82E-03 1.04E-03 7.65E-03 3.02E+01

Limestone 3.58E-02 7.46E-04 5.72E-04 4.22E-04 8.50E-05 9.28E-04 6.31E+00

Lipscomb 7.15E-03 1.43E-04 1.02E-04 5.23E-05 9.25E-06 1.18E-04 1.21E+00

Live Oak 2.20E-02 4.55E-04 3.45E-04 2.44E-04 4.85E-05 5.37E-04 3.85E+00

Llano 2.12E-01 5.20E-03 4.24E-03 2.07E-02 2.21E-03 1.40E-02 3.53E+01

Lubbock 1.23E+00 3.00E-02 2.62E-02 3.64E-01 3.82E-02 1.35E-01 1.68E+02

Lynn 2.41E-02 5.01E-04 3.83E-04 2.79E-04 5.60E-05 6.14E-04 4.23E+00

Madison 6.75E-03 1.39E-04 1.04E-04 7.07E-05 1.39E-05 1.56E-04 1.18E+00

Marion 1.63E-02 3.40E-04 2.62E-04 1.97E-04 3.99E-05 4.32E-04 2.87E+00

3-6


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Martin 1.43E-02 2.97E-04 2.26E-04 1.63E-04 3.25E-05 3.58E-04 2.51E+00

Mason 1.66E-02 3.45E-04 2.63E-04 1.92E-04 3.85E-05 4.22E-04 2.91E+00

Matagorda 1.80E-01 4.64E-03 3.87E-03 2.50E-02 2.56E-03 1.53E-02 2.91E+01

Maverick 9.53E-03 2.00E-04 1.56E-04 1.23E-04 2.51E-05 2.69E-04 1.69E+00

McCulloch 1.80E-01 2.93E-04 2.83E-04 5.31E-03 1.03E-03 1.18E-02 1.05E+01

McLennan 1.83E+00 5.23E-02 4.52E-02 3.92E-01 3.99E-02 2.16E-01 2.79E+02

McMullen 1.55E-03 3.06E-05 2.11E-05 8.40E-06 1.29E-06 1.94E-05 2.58E-01

Medina 9.00E-01 1.88E-02 1.45E-02 1.11E-02 2.22E-03 2.39E-02 1.59E+02

Menard 8.03E-03 1.64E-04 1.22E-04 7.76E-05 1.49E-05 1.72E-04 1.39E+00

Midland 1.20E+00 3.13E-02 2.78E-02 3.63E-01 3.98E-02 1.52E-01 1.59E+02

Milam 5.35E-02 1.11E-03 8.47E-04 6.13E-04 1.23E-04 1.35E-03 9.39E+00

Mills 6.20E-03 1.22E-04 8.43E-05 3.35E-05 5.16E-06 7.77E-05 1.03E+00

Mitchell 3.70E-02 7.75E-04 6.00E-04 4.62E-04 9.39E-05 1.01E-03 6.55E+00

Montague 1.11E-01 2.36E-03 1.82E-03 2.10E-03 3.42E-04 3.28E-03 1.95E+01

Montgomery 5.91E-01 1.52E-02 1.26E-02 6.65E-02 7.05E-03 4.37E-02 9.82E+01

Moore 1.54E-01 3.23E-03 2.49E-03 2.31E-03 4.18E-04 4.29E-03 2.71E+01

Morris 1.23E-03 2.71E-05 2.28E-05 2.30E-05 4.96E-06 4.96E-05 2.29E-01

Motley 1.70E-03 3.54E-05 2.73E-05 2.06E-05 4.16E-06 4.51E-05 2.99E-01

Nacogdoches 2.40E-01 5.19E-03 4.06E-03 7.43E-03 1.01E-03 8.46E-03 4.19E+01

Navarro 2.08E-01 4.33E-03 3.31E-03 2.44E-03 4.89E-04 5.35E-03 3.66E+01

Newton 4.94E-03 1.03E-04 7.98E-05 6.09E-05 1.23E-05 1.33E-04 8.74E-01

Nolan 8.09E-02 1.69E-03 1.30E-03 9.84E-04 1.99E-04 2.16E-03 1.43E+01

Nueces 1.52E+00 6.70E-02 6.40E-02 9.87E-01 9.66E-02 4.71E-01 1.54E+02

Ochiltree 1.49E-01 3.11E-03 2.40E-03 1.80E-03 3.65E-04 3.96E-03 2.63E+01

Oldham 3.42E-02 7.14E-04 5.49E-04 4.14E-04 8.36E-05 9.07E-04 6.03E+00

Orange 9.55E-02 2.23E-03 1.76E-03 1.44E-03 2.90E-04 2.82E-03 1.71E+01

Palo Pinto 4.13E-02 8.61E-04 6.59E-04 4.86E-04 9.77E-05 1.07E-03 7.27E+00

Panola 8.91E-02 2.01E-03 1.60E-03 4.86E-03 5.70E-04 4.12E-03 1.53E+01

Parker 5.35E-01 1.13E-02 8.69E-03 1.01E-02 1.61E-03 1.56E-02 9.36E+01

Parmer 6.33E-02 1.32E-03 1.01E-03 7.49E-04 1.51E-04 1.64E-03 1.12E+01

Pecos 8.51E-02 1.89E-03 1.49E-03 3.32E-03 4.23E-04 3.32E-03 1.48E+01

Polk 7.30E-02 1.52E-03 1.17E-03 8.73E-04 1.76E-04 1.92E-03 1.29E+01

Potter 1.51E+00 6.05E-02 5.72E-02 9.31E-01 8.95E-02 4.03E-01 1.79E+02

Presidio 1.34E-01 2.80E-03 2.15E-03 1.62E-03 3.28E-04 3.54E-03 2.36E+01

Rains 2.71E-03 5.57E-05 4.18E-05 2.81E-05 5.50E-06 6.21E-05 4.71E-01

Randall 3.59E-01 7.49E-03 5.74E-03 4.25E-03 8.56E-04 9.34E-03 6.33E+01

Reagan 1.90E-02 3.96E-04 3.04E-04 2.28E-04 4.60E-05 4.99E-04 3.34E+00

Real 1.21E-02 2.51E-04 1.90E-04 1.35E-04 2.69E-05 2.97E-04 2.12E+00

3-7


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Red River 1.25E-02 2.60E-04 1.99E-04 1.48E-04 2.99E-05 3.26E-04 2.19E+00

Reeves 2.47E-01 9.41E-03 8.62E-03 1.01E-01 9.75E-03 5.21E-02 3.26E+01

Refugio 3.32E-02 6.93E-04 5.32E-04 3.96E-04 7.98E-05 8.69E-04 5.85E+00

Roberts 5.86E-03 1.20E-04 9.02E-05 6.01E-05 1.17E-05 1.33E-04 1.02E+00

Robertson 3.08E-02 6.36E-04 4.80E-04 3.33E-04 6.57E-05 7.34E-04 5.37E+00

Rockwall 4.32E-01 9.04E-03 6.97E-03 5.55E-03 1.09E-03 1.17E-02 7.63E+01

Runnels 2.78E-02 5.85E-04 4.49E-04 3.32E-04 6.65E-05 7.18E-04 4.89E+00

Rusk 1.00E-01 2.33E-03 1.87E-03 7.25E-03 8.06E-04 5.45E-03 1.70E+01

Sabine 1.07E-02 2.24E-04 1.75E-04 1.39E-04 2.86E-05 3.05E-04 1.90E+00

San Augustine 6.81E-03 1.42E-04 1.09E-04 8.23E-05 1.66E-05 1.81E-04 1.20E+00

San Jacinto 1.81E-03 3.56E-05 2.46E-05 9.78E-06 1.51E-06 2.26E-05 3.01E-01

San Patricio 1.97E-01 4.11E-03 3.16E-03 2.38E-03 4.82E-04 5.23E-03 3.47E+01

San Saba 1.68E-02 3.50E-04 2.67E-04 1.93E-04 3.87E-05 4.25E-04 2.95E+00

Schleicher 9.42E-03 1.95E-04 1.47E-04 1.02E-04 2.02E-05 2.25E-04 1.64E+00

Scurry 8.69E-02 1.82E-03 1.40E-03 1.05E-03 2.13E-04 2.31E-03 1.53E+01

Shackelford 3.39E-02 7.09E-04 5.46E-04 4.11E-04 8.31E-05 9.02E-04 5.99E+00

Shelby 1.90E-01 3.98E-03 3.07E-03 2.75E-03 5.07E-04 5.25E-03 3.35E+01

Sherman 2.24E-03 4.67E-05 3.59E-05 2.69E-05 5.43E-06 5.90E-05 3.95E-01

Smith 3.21E-01 8.30E-03 6.92E-03 2.44E-02 3.62E-03 1.68E-02 5.43E+01

Somervell 6.44E-03 1.29E-04 9.25E-05 4.83E-05 8.60E-06 1.09E-04 1.09E+00

Starr 4.36E-03 8.89E-05 6.56E-05 4.06E-05 7.74E-06 9.03E-05 7.51E-01

Stephens 1.21E-01 2.52E-03 1.94E-03 1.44E-03 2.91E-04 3.17E-03 2.13E+01

Sterling 1.98E-03 3.91E-05 2.71E-05 1.13E-05 1.79E-06 2.60E-05 3.30E-01

Stonewall 8.79E-03 1.87E-04 1.48E-04 1.25E-04 2.60E-05 2.73E-04 1.58E+00

Sutton 1.44E-02 3.00E-04 2.30E-04 1.71E-04 3.45E-05 3.75E-04 2.54E+00

Swisher 5.80E-02 1.21E-03 9.24E-04 6.77E-04 1.36E-04 1.49E-03 1.02E+01

Tarrant 2.79E+01 2.87E-01 2.65E-01 1.70E+01 1.86E+00 2.73E+00 1.84E+03

Taylor 7.12E-01 2.68E-02 2.48E-02 3.16E-01 3.17E-02 1.57E-01 9.01E+01

Terrell 4.13E-03 8.45E-05 6.25E-05 3.94E-05 7.56E-06 8.75E-05 7.14E-01

Terry 2.35E-02 4.92E-04 3.80E-04 2.92E-04 5.94E-05 6.40E-04 4.15E+00

Throckmorton 5.60E-04 1.17E-05 8.98E-06 6.72E-06 1.36E-06 1.48E-05 9.87E-02

Titus 1.31E-01 2.74E-03 2.11E-03 1.58E-03 3.20E-04 3.47E-03 2.32E+01

Tom Green 5.91E-02 6.26E-04 5.04E-04 1.98E-02 2.49E-03 3.51E-03 9.08E+00

Travis 5.49E+00 4.44E-02 4.22E-02 2.49E+00 2.82E-01 6.79E-01 3.67E+02

Trinity 1.42E-02 2.94E-04 2.23E-04 1.58E-04 3.15E-05 3.49E-04 2.48E+00

Tyler 1.53E-02 3.19E-04 2.45E-04 1.82E-04 3.66E-05 3.99E-04 2.70E+00

Upshur 1.52E-01 3.18E-03 2.45E-03 1.86E-03 3.78E-04 4.09E-03 2.69E+01

Upton 6.89E-03 1.44E-04 1.11E-04 8.28E-05 1.67E-05 1.82E-04 1.21E+00

3-8


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Uvalde 1.04E-01 2.41E-03 1.93E-03 5.87E-03 6.91E-04 4.93E-03 1.78E+01

Val Verde 1.26E-01 3.10E-03 2.51E-03 7.16E-03 1.05E-03 6.09E-03 2.20E+01

Van Zandt 3.33E-02 6.85E-04 5.13E-04 3.44E-04 6.71E-05 7.59E-04 5.79E+00

Victoria 9.68E-01 4.79E-02 4.63E-02 7.24E-01 6.87E-02 3.55E-01 8.76E+01

Walker 2.74E-01 8.21E-03 7.15E-03 6.62E-02 6.52E-03 3.64E-02 4.10E+01

Waller 1.73E-01 3.60E-03 2.75E-03 1.99E-03 3.99E-04 4.38E-03 3.04E+01

Ward 1.02E-01 2.14E-03 1.65E-03 1.24E-03 2.51E-04 2.72E-03 1.81E+01

Washington 9.96E-02 2.09E-03 1.60E-03 1.49E-03 2.64E-04 2.71E-03 1.75E+01

Webb 1.33E+00 4.71E-02 4.45E-02 7.71E-01 7.66E-02 3.36E-01 1.29E+02

Wharton 1.17E-01 2.50E-03 1.94E-03 2.89E-03 4.18E-04 3.74E-03 2.05E+01

Wheeler 1.04E-02 2.17E-04 1.67E-04 1.25E-04 2.53E-05 2.75E-04 1.84E+00

Wichita 2.26E+00 1.04E-01 9.91E-02 1.51E+00 1.44E-01 7.45E-01 2.22E+02

Wilbarger 1.33E-01 2.84E-03 2.20E-03 3.11E-03 4.63E-04 4.20E-03 2.33E+01

Willacy 1.25E-02 2.58E-04 1.94E-04 1.30E-04 2.55E-05 2.88E-04 2.18E+00

Williamson 1.19E+00 2.54E-02 1.96E-02 2.15E-02 3.58E-03 3.47E-02 2.09E+02

Wilson 9.38E-03 1.85E-04 1.28E-04 5.08E-05 7.81E-06 1.18E-04 1.56E+00

Winkler 1.19E-02 3.08E-04 2.59E-04 1.66E-03 1.71E-04 1.03E-03 1.94E+00

Wise 3.81E-01 7.93E-03 6.05E-03 4.40E-03 8.82E-04 9.67E-03 6.70E+01

Wood 1.91E-01 3.99E-03 3.07E-03 2.30E-03 4.65E-04 5.05E-03 3.37E+01

Yoakum 8.05E-02 1.68E-03 1.29E-03 9.76E-04 1.97E-04 2.14E-03 1.42E+01

Young 1.28E-01 2.68E-03 2.06E-03 1.70E-03 3.27E-04 3.47E-03 2.26E+01

Zapata 2.74E-02 5.69E-04 4.35E-04 3.19E-04 6.39E-05 7.00E-04 4.81E+00

Zavala 9.56E-03 1.91E-04 1.36E-04 6.88E-05 1.21E-05 1.55E-04 1.62E+00

3-9

Table 3-5. Uncontrolled Daily Criteria Emission by County (Tons Per Day)

County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Anderson 1.04E-01 2.19E-03 1.70E-03 2.01E-03 3.25E-04 3.11E-03 1.82E+01

Andrews 8.07E-02 1.69E-03 1.30E-03 9.77E-04 1.98E-04 2.14E-03 1.42E+01

Angelina 4.87E-01 1.40E-02 1.18E-02 6.54E-02 6.94E-03 4.17E-02 8.08E+01

Aransas 6.05E-01 2.60E-02 2.46E-02 3.54E-01 3.37E-02 1.76E-01 6.60E+01

Archer 3.33E-02 7.01E-04 5.48E-04 4.36E-04 8.95E-05 9.53E-04 5.92E+00

Armstrong 4.72E-03 9.31E-05 6.42E-05 2.56E-05 3.93E-06 5.92E-05 7.86E-01

Atascosa 8.65E-02 2.49E-03 2.14E-03 1.74E-02 1.74E-03 9.88E-03 1.34E+01

Austin 3.96E-02 8.10E-04 6.01E-04 3.81E-04 7.33E-05 8.46E-04 6.85E+00

Bailey 5.47E-02 1.16E-03 9.06E-04 7.33E-04 1.51E-04 1.60E-03 9.76E+00

Bandera 1.47E-02 2.91E-04 2.04E-04 9.27E-05 1.54E-05 2.12E-04 2.46E+00

Bastrop 3.87E-01 3.77E-04 3.30E-04 1.21E-03 3.99E-04 4.85E-03 3.38E+01

Baylor 2.49E-02 5.19E-04 4.00E-04 3.01E-04 6.08E-05 6.60E-04 4.39E+00

Bee 6.45E-02 1.35E-03 1.04E-03 7.78E-04 1.57E-04 1.71E-03 1.14E+01

Bell 9.16E-01 2.74E-02 2.45E-02 2.90E-01 3.05E-02 1.36E-01 1.27E+02

Bexar 4.44E+00 7.72E-02 6.86E-02 2.15E+00 2.25E-01 4.49E-01 4.61E+02

Blanco 1.37E-02 2.70E-04 1.86E-04 7.42E-05 1.14E-05 1.72E-04 2.28E+00

Bosque 6.29E-02 1.30E-03 9.88E-04 7.00E-04 1.39E-04 1.54E-03 1.10E+01

Bowie 3.65E-03 7.19E-05 4.96E-05 1.98E-05 3.04E-06 4.57E-05 6.08E-01

Brazoria 1.67E+00 3.72E-02 2.92E-02 4.38E-02 6.51E-03 5.56E-02 2.94E+02

Brazos 7.52E-01 2.49E-02 2.26E-02 2.68E-01 2.76E-02 1.35E-01 9.99E+01

Brewster 8.81E-02 1.86E-03 1.44E-03 1.79E-03 2.79E-04 2.63E-03 1.54E+01

Briscoe 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Brooks 4.60E-02 9.59E-04 7.35E-04 5.43E-04 1.09E-04 1.19E-03 8.10E+00

Brown 1.97E-01 4.44E-03 3.50E-03 7.26E-03 9.82E-04 7.59E-03 3.47E+01

Burleson 2.53E-02 5.27E-04 4.05E-04 3.04E-04 6.13E-05 6.66E-04 4.45E+00

Burnet 3.03E-01 6.65E-03 5.21E-03 1.26E-02 1.55E-03 1.20E-02 5.22E+01

Caldwell 7.56E-01 1.65E-02 1.29E-02 2.15E-02 3.03E-03 2.60E-02 1.32E+02

Calhoun 1.15E-01 3.27E-03 2.82E-03 2.40E-02 2.39E-03 1.35E-02 1.76E+01

Callahan 5.15E-03 1.02E-04 7.11E-05 3.07E-05 4.97E-06 7.05E-05 8.62E-01

Cameron 1.77E+00 6.43E-02 6.07E-02 1.12E+00 1.08E-01 4.34E-01 1.89E+02

Camp 2.59E-03 5.33E-05 4.02E-05 2.75E-05 5.40E-06 6.06E-05 4.51E-01

Carson 4.34E-02 9.09E-04 7.02E-04 5.36E-04 1.09E-04 1.18E-03 7.68E+00

Cass 1.58E-01 3.31E-03 2.54E-03 1.90E-03 3.83E-04 4.16E-03 2.79E+01

Castro 2.36E-02 4.89E-04 3.71E-04 2.63E-04 5.23E-05 5.79E-04 4.13E+00

Chambers 1.66E-01 3.46E-03 2.66E-03 2.00E-03 4.03E-04 4.38E-03 2.92E+01

Cherokee 1.77E-01 3.72E-03 2.88E-03 2.90E-03 5.03E-04 5.05E-03 3.11E+01

Childress 2.66E-02 5.57E-04 4.30E-04 3.28E-04 6.66E-05 7.19E-04 4.71E+00

Clay 3.65E-02 7.76E-04 6.15E-04 5.16E-04 1.07E-04 1.12E-03 6.56E+00

3-10


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Cochran 9.32E-03 1.95E-04 1.50E-04 1.13E-04 2.28E-05 2.47E-04 1.64E+00

Coke 2.58E-03 5.39E-05 4.14E-05 3.10E-05 6.27E-06 6.81E-05 4.55E-01

Coleman 5.82E-02 1.22E-03 9.36E-04 7.05E-04 1.43E-04 1.55E-03 1.03E+01

Collin 1.44E+00 3.10E-02 2.41E-02 1.94E-02 3.85E-03 4.00E-02 2.55E+02

Collingsworth 3.21E-02 7.06E-04 5.55E-04 1.29E-03 1.63E-04 1.27E-03 5.56E+00

Colorado 1.09E-01 2.28E-03 1.76E-03 1.32E-03 2.66E-04 2.89E-03 1.93E+01

Comal 3.13E-01 6.52E-03 5.00E-03 3.71E-03 7.47E-04 8.14E-03 5.51E+01

Comanche 7.66E-02 1.60E-03 1.23E-03 9.19E-04 1.86E-04 2.02E-03 1.35E+01

Cooke 2.42E-01 5.10E-03 3.92E-03 4.33E-03 7.07E-04 6.90E-03 4.24E+01

Coryell 1.21E-01 2.71E-03 2.14E-03 5.98E-03 7.14E-04 5.28E-03 2.09E+01

Cottle 9.47E-03 1.98E-04 1.52E-04 1.14E-04 2.30E-05 2.50E-04 1.67E+00

Crane 1.08E-02 2.24E-04 1.73E-04 1.29E-04 2.61E-05 2.84E-04 1.90E+00

Crockett 6.51E-02 1.40E-03 1.09E-03 1.91E-03 2.62E-04 2.23E-03 1.13E+01

Crosby 4.73E-02 1.01E-03 7.99E-04 6.77E-04 1.41E-04 1.47E-03 8.51E+00

Culberson 8.57E-03 2.93E-04 2.62E-04 3.11E-03 2.98E-04 1.59E-03 1.14E+00

Dallam 2.29E-02 4.79E-04 3.70E-04 2.83E-04 5.75E-05 6.20E-04 4.05E+00

Dallas 6.27E+00 1.05E-01 8.95E-02 2.13E+00 2.30E-01 4.71E-01 7.74E+02

Dawson 1.13E-01 2.36E-03 1.82E-03 1.38E-03 2.78E-04 3.02E-03 2.00E+01

Deaf Smith 1.08E-01 2.28E-03 1.76E-03 1.89E-03 3.16E-04 3.10E-03 1.89E+01

Delta 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Denton 2.79E+00 5.73E-02 4.19E-02 2.80E-02 4.91E-03 5.56E-02 4.77E+02

DeWitt 3.71E-03 7.70E-05 5.86E-05 4.19E-05 8.34E-06 9.21E-05 6.51E-01

Dickens 3.09E-03 6.08E-05 4.20E-05 1.67E-05 2.57E-06 3.87E-05 5.14E-01

Dimmit 2.35E-02 4.88E-04 3.73E-04 2.72E-04 5.46E-05 5.99E-04 4.12E+00

Donley 1.49E-02 3.12E-04 2.40E-04 1.80E-04 3.64E-05 3.95E-04 2.63E+00

Duval 1.96E-02 3.99E-04 2.95E-04 1.85E-04 3.55E-05 4.12E-04 3.37E+00

Eastland 8.59E-02 1.79E-03 1.38E-03 1.03E-03 2.09E-04 2.27E-03 1.52E+01

Ector 4.11E-01 8.59E-03 6.61E-03 4.98E-03 1.01E-03 1.09E-02 7.26E+01

Edwards 1.02E-02 2.07E-04 1.51E-04 8.93E-05 1.67E-05 1.99E-04 1.75E+00

El Paso 1.94E+00 4.56E-02 4.18E-02 9.40E-01 9.77E-02 2.78E-01 2.10E+02

Ellis 3.82E-01 8.09E-03 6.26E-03 7.89E-03 1.23E-03 1.16E-02 6.69E+01

Erath 1.86E-01 3.91E-03 3.00E-03 2.81E-03 5.00E-04 5.11E-03 3.27E+01

Falls 4.01E-03 8.20E-05 6.08E-05 3.87E-05 7.45E-06 8.59E-05 6.92E-01

Fannin 1.21E-01 2.50E-03 1.90E-03 1.36E-03 2.71E-04 2.99E-03 2.12E+01

Fayette 9.83E-02 2.04E-03 1.55E-03 1.11E-03 2.22E-04 2.45E-03 1.72E+01

Fisher 3.10E-02 6.47E-04 4.98E-04 3.73E-04 7.52E-05 8.17E-04 5.47E+00

Floyd 5.26E-02 1.09E-03 8.36E-04 6.12E-04 1.23E-04 1.34E-03 9.24E+00

Foard 3.81E-03 8.01E-05 6.23E-05 4.90E-05 1.00E-05 1.07E-04 6.77E-01

3-11


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Fort Bend 1.04E+00 2.47E-02 1.97E-02 4.16E-02 5.51E-03 4.25E-02 1.83E+02

Franklin 5.75E-02 1.20E-03 9.30E-04 7.12E-04 1.45E-04 1.56E-03 1.02E+01

Freestone 1.24E-02 2.58E-04 1.98E-04 1.49E-04 3.00E-05 3.26E-04 2.18E+00

Frio 4.24E-02 8.82E-04 6.76E-04 4.99E-04 1.00E-04 1.09E-03 7.45E+00

Gaines 1.44E-01 3.04E-03 2.34E-03 1.76E-03 3.56E-04 3.81E-03 2.53E+01

Galveston 3.18E-01 9.62E-03 8.16E-03 2.55E-02 3.13E-03 2.06E-02 5.67E+01

Garza 8.14E-03 1.66E-04 1.23E-04 7.80E-05 1.50E-05 1.73E-04 1.41E+00

Gillespie 1.40E-01 3.08E-03 2.39E-03 4.31E-03 5.80E-04 4.82E-03 2.44E+01

Glasscock 2.37E-03 4.68E-05 3.23E-05 1.28E-05 1.98E-06 2.97E-05 3.95E-01

Gonzales 1.88E-02 3.92E-04 3.00E-04 2.21E-04 4.45E-05 4.86E-04 3.31E+00

Gray 1.75E-01 3.66E-03 2.81E-03 2.12E-03 4.28E-04 4.65E-03 3.09E+01

Grayson 8.35E-01 1.76E-02 1.35E-02 1.31E-02 2.29E-03 2.32E-02 1.47E+02

Gregg 5.84E-01 1.79E-02 1.55E-02 1.02E-01 1.06E-02 5.90E-02 9.62E+01

Grimes 4.06E-02 8.47E-04 6.51E-04 4.89E-04 9.87E-05 1.07E-03 7.15E+00

Guadalupe 6.24E-01 1.68E-02 1.41E-02 9.76E-02 9.91E-03 5.82E-02 9.96E+01

Hale 6.62E-02 1.42E-03 1.09E-03 2.05E-03 2.67E-04 2.22E-03 1.14E+01

Hall 9.32E-03 1.95E-04 1.50E-04 1.13E-04 2.28E-05 2.47E-04 1.64E+00

Hamilton 5.86E-02 1.25E-03 9.57E-04 7.11E-04 1.42E-04 1.52E-03 1.03E+01

Hansford 2.42E-01 5.06E-03 3.89E-03 2.93E-03 5.93E-04 6.43E-03 4.27E+01

Hardeman 3.42E-02 7.14E-04 5.49E-04 4.14E-04 8.36E-05 9.07E-04 6.03E+00

Hardin 3.34E-02 6.99E-04 5.40E-04 4.12E-04 8.37E-05 9.04E-04 5.91E+00

Harris 1.30E+01 2.40E-01 2.18E-01 9.05E+00 8.18E-01 1.39E+00 1.59E+03

Harrison 1.36E-01 2.85E-03 2.21E-03 1.71E-03 3.48E-04 3.74E-03 2.41E+01

Hartley 8.96E-02 1.96E-03 1.54E-03 3.35E-03 4.29E-04 3.42E-03 1.55E+01

Haskell 1.86E-02 3.89E-04 3.00E-04 2.26E-04 4.56E-05 4.95E-04 3.29E+00

Hays 1.45E-02 2.89E-04 2.03E-04 9.21E-05 1.53E-05 2.10E-04 2.44E+00

Hemphill 5.29E-02 1.10E-03 8.42E-04 6.19E-04 1.24E-04 1.36E-03 9.30E+00

Henderson 1.06E-01 2.28E-03 1.77E-03 2.76E-03 3.92E-04 3.44E-03 1.85E+01

Hidalgo 1.18E+00 2.74E-02 2.35E-02 3.35E-01 3.60E-02 1.10E-01 1.63E+02

Hill 1.05E-01 2.18E-03 1.66E-03 1.20E-03 2.39E-04 2.63E-03 1.84E+01

Hockley 1.10E-01 2.31E-03 1.78E-03 1.35E-03 2.73E-04 2.95E-03 1.95E+01

Hood 2.84E-01 5.91E-03 4.51E-03 3.29E-03 6.59E-04 7.23E-03 4.99E+01

Hopkins 2.67E-01 5.62E-03 4.33E-03 3.85E-03 7.13E-04 7.38E-03 4.71E+01

Houston 7.56E-02 1.57E-03 1.21E-03 8.93E-04 1.80E-04 1.96E-03 1.33E+01

Howard 1.95E-01 4.72E-03 3.85E-03 1.93E-02 2.05E-03 1.30E-02 3.24E+01

Hudspeth 2.45E-02 5.13E-04 3.96E-04 3.02E-04 6.12E-05 6.61E-04 4.33E+00

Hunt 3.53E-01 8.58E-03 7.00E-03 3.62E-02 3.81E-03 2.40E-02 5.83E+01

Hutchinson 7.78E-02 1.63E-03 1.26E-03 1.09E-03 2.04E-04 2.14E-03 1.37E+01

3-12


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Irion 1.55E-03 3.06E-05 2.11E-05 8.40E-06 1.29E-06 1.94E-05 2.58E-01

Jack 2.45E-02 5.06E-04 3.81E-04 2.62E-04 5.17E-05 5.79E-04 4.27E+00

Jackson 1.57E-01 3.39E-03 2.71E-03 4.01E-03 6.24E-04 5.62E-03 2.79E+01

Jasper 1.57E-01 3.28E-03 2.53E-03 1.90E-03 3.84E-04 4.17E-03 2.77E+01

Jeff Davis 1.80E-05 3.54E-07 2.45E-07 9.73E-08 1.50E-08 2.25E-07 2.99E-03

Jefferson 3.62E-01 8.90E-03 7.42E-03 4.48E-02 5.22E-03 2.62E-02 5.90E+01

Jim Hogg 5.22E-03 1.07E-04 8.00E-05 5.27E-05 1.02E-05 1.17E-04 9.06E-01

Jim Wells 4.07E-01 2.02E-02 1.94E-02 3.07E-01 2.90E-02 1.50E-01 3.64E+01

Johnson 3.13E-01 6.59E-03 5.03E-03 3.98E-03 7.53E-04 8.00E-03 5.49E+01

Jones 8.14E-02 1.70E-03 1.30E-03 9.67E-04 1.95E-04 2.12E-03 1.43E+01

Karnes 8.28E-02 3.71E-03 3.52E-03 5.27E-02 5.00E-03 2.59E-02 8.46E+00

Kaufman 3.02E-01 6.32E-03 4.87E-03 3.70E-03 7.48E-04 8.08E-03 5.33E+01

Kendall 6.06E-03 1.19E-04 8.23E-05 3.28E-05 5.04E-06 7.59E-05 1.01E+00

Kenedy 1.53E-03 3.02E-05 2.08E-05 8.30E-06 1.28E-06 1.92E-05 2.55E-01

Kent 5.17E-02 1.08E-03 8.29E-04 6.21E-04 1.25E-04 1.36E-03 9.12E+00

Kerr 5.24E-01 1.09E-02 8.39E-03 6.31E-03 1.27E-03 1.38E-02 9.23E+01

Kimble 6.08E-02 1.33E-03 1.04E-03 2.24E-03 2.89E-04 2.31E-03 1.06E+01

King 3.09E-03 6.08E-05 4.19E-05 1.67E-05 2.57E-06 3.86E-05 5.14E-01

Kinney 9.92E-03 1.95E-04 1.35E-04 5.37E-05 8.26E-06 1.24E-04 1.65E+00

Kleberg 6.54E-02 1.56E-03 1.26E-03 5.06E-03 5.62E-04 3.74E-03 1.11E+01

Knox 4.46E-02 9.29E-04 7.11E-04 5.23E-04 1.05E-04 1.15E-03 7.85E+00

La Salle 1.11E-01 3.50E-03 3.02E-03 3.45E-02 3.30E-03 1.78E-02 1.50E+01

Lamar 1.48E-01 3.20E-03 2.53E-03 2.78E-03 4.86E-04 4.71E-03 2.64E+01

Lamb 7.19E-02 1.52E-03 1.18E-03 1.28E-03 2.19E-04 2.15E-03 1.27E+01

Lampasas 9.11E-02 1.90E-03 1.45E-03 1.06E-03 2.12E-04 2.33E-03 1.60E+01

Lavaca 2.52E-02 5.26E-04 4.04E-04 3.00E-04 6.04E-05 6.58E-04 4.45E+00

Lee 1.11E-01 2.43E-03 1.90E-03 4.32E-03 5.42E-04 4.25E-03 1.92E+01

Leon 1.19E-02 2.37E-04 1.67E-04 7.79E-05 1.32E-05 1.77E-04 2.00E+00

Liberty 1.76E-01 3.93E-03 3.10E-03 8.82E-03 1.04E-03 7.65E-03 3.02E+01

Limestone 3.58E-02 7.46E-04 5.72E-04 4.22E-04 8.50E-05 9.28E-04 6.31E+00

Lipscomb 7.15E-03 1.43E-04 1.02E-04 5.23E-05 9.25E-06 1.18E-04 1.21E+00

Live Oak 2.20E-02 4.55E-04 3.45E-04 2.44E-04 4.85E-05 5.37E-04 3.85E+00

Llano 2.12E-01 5.20E-03 4.24E-03 2.07E-02 2.21E-03 1.40E-02 3.53E+01

Lubbock 1.24E+00 3.10E-02 2.72E-02 3.70E-01 3.92E-02 1.36E-01 1.68E+02

Lynn 2.41E-02 5.01E-04 3.83E-04 2.79E-04 5.60E-05 6.14E-04 4.23E+00

Madison 6.75E-03 1.39E-04 1.04E-04 7.07E-05 1.39E-05 1.56E-04 1.18E+00

Marion 1.63E-02 3.40E-04 2.62E-04 1.97E-04 3.99E-05 4.32E-04 2.87E+00

Martin 1.43E-02 2.97E-04 2.26E-04 1.63E-04 3.25E-05 3.58E-04 2.51E+00

3-13


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Mason 1.66E-02 3.45E-04 2.63E-04 1.92E-04 3.85E-05 4.22E-04 2.91E+00

Matagorda 1.80E-01 4.64E-03 3.87E-03 2.50E-02 2.56E-03 1.53E-02 2.91E+01

Maverick 9.53E-03 2.00E-04 1.56E-04 1.23E-04 2.51E-05 2.69E-04 1.69E+00

McCulloch 1.80E-01 3.06E-04 2.95E-04 5.53E-03 1.03E-03 1.19E-02 1.05E+01

McLennan 1.83E+00 5.23E-02 4.52E-02 3.92E-01 3.99E-02 2.16E-01 2.79E+02

McMullen 1.55E-03 3.06E-05 2.11E-05 8.40E-06 1.29E-06 1.94E-05 2.58E-01

Medina 9.00E-01 1.88E-02 1.45E-02 1.11E-02 2.22E-03 2.39E-02 1.59E+02

Menard 8.03E-03 1.64E-04 1.22E-04 7.76E-05 1.49E-05 1.72E-04 1.39E+00

Midland 1.20E+00 3.13E-02 2.78E-02 3.63E-01 3.98E-02 1.52E-01 1.59E+02

Milam 5.35E-02 1.11E-03 8.47E-04 6.13E-04 1.23E-04 1.35E-03 9.39E+00

Mills 6.20E-03 1.22E-04 8.43E-05 3.35E-05 5.16E-06 7.77E-05 1.03E+00

Mitchell 3.70E-02 7.75E-04 6.00E-04 4.62E-04 9.39E-05 1.01E-03 6.55E+00

Montague 1.11E-01 2.36E-03 1.82E-03 2.10E-03 3.42E-04 3.28E-03 1.95E+01

Montgomery 5.91E-01 1.52E-02 1.26E-02 6.65E-02 7.05E-03 4.37E-02 9.82E+01

Moore 1.54E-01 3.23E-03 2.49E-03 2.31E-03 4.18E-04 4.29E-03 2.71E+01

Morris 1.23E-03 2.71E-05 2.28E-05 2.30E-05 4.96E-06 4.96E-05 2.29E-01

Motley 1.70E-03 3.54E-05 2.73E-05 2.06E-05 4.16E-06 4.51E-05 2.99E-01

Nacogdoches 2.40E-01 5.19E-03 4.06E-03 7.43E-03 1.01E-03 8.46E-03 4.19E+01

Navarro 2.08E-01 4.33E-03 3.31E-03 2.44E-03 4.89E-04 5.35E-03 3.66E+01

Newton 4.94E-03 1.03E-04 7.98E-05 6.09E-05 1.23E-05 1.33E-04 8.74E-01

Nolan 8.09E-02 1.69E-03 1.30E-03 9.84E-04 1.99E-04 2.16E-03 1.43E+01

Nueces 1.53E+00 6.76E-02 6.46E-02 9.89E-01 9.70E-02 4.71E-01 1.54E+02

Ochiltree 1.49E-01 3.11E-03 2.40E-03 1.80E-03 3.65E-04 3.96E-03 2.63E+01

Oldham 3.42E-02 7.14E-04 5.49E-04 4.14E-04 8.36E-05 9.07E-04 6.03E+00

Orange 9.55E-02 2.23E-03 1.76E-03 1.44E-03 2.90E-04 2.82E-03 1.71E+01

Palo Pinto 4.13E-02 8.61E-04 6.59E-04 4.86E-04 9.77E-05 1.07E-03 7.27E+00

Panola 8.91E-02 2.01E-03 1.60E-03 4.86E-03 5.70E-04 4.12E-03 1.53E+01

Parker 5.35E-01 1.13E-02 8.69E-03 1.01E-02 1.61E-03 1.56E-02 9.36E+01

Parmer 6.33E-02 1.32E-03 1.01E-03 7.49E-04 1.51E-04 1.64E-03 1.12E+01

Pecos 8.51E-02 1.89E-03 1.49E-03 3.32E-03 4.23E-04 3.32E-03 1.48E+01

Polk 7.30E-02 1.52E-03 1.17E-03 8.73E-04 1.76E-04 1.92E-03 1.29E+01

Potter 1.52E+00 6.18E-02 5.85E-02 9.37E-01 9.07E-02 4.04E-01 1.79E+02

Presidio 1.34E-01 2.80E-03 2.15E-03 1.62E-03 3.28E-04 3.54E-03 2.36E+01

Rains 2.71E-03 5.57E-05 4.18E-05 2.81E-05 5.50E-06 6.21E-05 4.71E-01

Randall 3.59E-01 7.49E-03 5.74E-03 4.25E-03 8.56E-04 9.34E-03 6.33E+01

Reagan 1.90E-02 3.96E-04 3.04E-04 2.28E-04 4.60E-05 4.99E-04 3.34E+00

Real 1.21E-02 2.51E-04 1.90E-04 1.35E-04 2.69E-05 2.97E-04 2.12E+00

Red River 1.25E-02 2.60E-04 1.99E-04 1.48E-04 2.99E-05 3.26E-04 2.19E+00

3-14


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Reeves 2.47E-01 9.41E-03 8.62E-03 1.01E-01 9.75E-03 5.21E-02 3.26E+01

Refugio 3.32E-02 6.93E-04 5.32E-04 3.96E-04 7.98E-05 8.69E-04 5.85E+00

Roberts 5.86E-03 1.20E-04 9.02E-05 6.01E-05 1.17E-05 1.33E-04 1.02E+00

Robertson 3.08E-02 6.36E-04 4.80E-04 3.33E-04 6.57E-05 7.34E-04 5.37E+00

Rockwall 4.32E-01 9.04E-03 6.97E-03 5.55E-03 1.09E-03 1.17E-02 7.63E+01

Runnels 2.78E-02 5.85E-04 4.49E-04 3.32E-04 6.65E-05 7.18E-04 4.89E+00

Rusk 1.00E-01 2.33E-03 1.87E-03 7.25E-03 8.06E-04 5.45E-03 1.70E+01

Sabine 1.07E-02 2.24E-04 1.75E-04 1.39E-04 2.86E-05 3.05E-04 1.90E+00

San Augustine 6.81E-03 1.42E-04 1.09E-04 8.23E-05 1.66E-05 1.81E-04 1.20E+00

San Jacinto 1.81E-03 3.56E-05 2.46E-05 9.78E-06 1.51E-06 2.26E-05 3.01E-01

San Patricio 1.97E-01 4.11E-03 3.16E-03 2.38E-03 4.82E-04 5.23E-03 3.47E+01

San Saba 1.68E-02 3.50E-04 2.67E-04 1.93E-04 3.87E-05 4.25E-04 2.95E+00

Schleicher 9.42E-03 1.95E-04 1.47E-04 1.02E-04 2.02E-05 2.25E-04 1.64E+00

Scurry 8.69E-02 1.82E-03 1.40E-03 1.05E-03 2.13E-04 2.31E-03 1.53E+01

Shackelford 3.39E-02 7.09E-04 5.46E-04 4.11E-04 8.31E-05 9.02E-04 5.99E+00

Shelby 1.90E-01 3.98E-03 3.07E-03 2.75E-03 5.07E-04 5.25E-03 3.35E+01

Sherman 2.24E-03 4.67E-05 3.59E-05 2.69E-05 5.43E-06 5.90E-05 3.95E-01

Smith 3.21E-01 8.30E-03 6.92E-03 2.44E-02 3.62E-03 1.68E-02 5.43E+01

Somervell 6.44E-03 1.29E-04 9.25E-05 4.83E-05 8.60E-06 1.09E-04 1.09E+00

Starr 4.36E-03 8.89E-05 6.56E-05 4.06E-05 7.74E-06 9.03E-05 7.51E-01

Stephens 1.21E-01 2.52E-03 1.94E-03 1.44E-03 2.91E-04 3.17E-03 2.13E+01

Sterling 1.98E-03 3.91E-05 2.71E-05 1.13E-05 1.79E-06 2.60E-05 3.30E-01

Stonewall 8.79E-03 1.87E-04 1.48E-04 1.25E-04 2.60E-05 2.73E-04 1.58E+00

Sutton 1.44E-02 3.00E-04 2.30E-04 1.71E-04 3.45E-05 3.75E-04 2.54E+00

Swisher 5.80E-02 1.21E-03 9.24E-04 6.77E-04 1.36E-04 1.49E-03 1.02E+01

Tarrant 2.79E+01 2.87E-01 2.65E-01 1.70E+01 1.86E+00 2.73E+00 1.84E+03

Taylor 7.13E-01 2.69E-02 2.49E-02 3.17E-01 3.18E-02 1.57E-01 9.01E+01

Terrell 4.13E-03 8.45E-05 6.25E-05 3.94E-05 7.56E-06 8.75E-05 7.14E-01

Terry 2.35E-02 4.92E-04 3.80E-04 2.92E-04 5.94E-05 6.40E-04 4.15E+00

Throckmorton 5.60E-04 1.17E-05 8.98E-06 6.72E-06 1.36E-06 1.48E-05 9.87E-02

Titus 1.31E-01 2.74E-03 2.11E-03 1.58E-03 3.20E-04 3.47E-03 2.32E+01

Tom Green 6.22E-02 8.97E-04 7.76E-04 2.08E-02 2.70E-03 3.72E-03 9.08E+00

Travis 5.49E+00 4.48E-02 4.25E-02 2.50E+00 2.83E-01 6.79E-01 3.67E+02

Trinity 1.42E-02 2.94E-04 2.23E-04 1.58E-04 3.15E-05 3.49E-04 2.48E+00

Tyler 1.53E-02 3.19E-04 2.45E-04 1.82E-04 3.66E-05 3.99E-04 2.70E+00

Upshur 1.52E-01 3.18E-03 2.45E-03 1.86E-03 3.78E-04 4.09E-03 2.69E+01

Upton 6.89E-03 1.44E-04 1.11E-04 8.28E-05 1.67E-05 1.82E-04 1.21E+00

Uvalde 1.04E-01 2.41E-03 1.93E-03 5.87E-03 6.91E-04 4.93E-03 1.78E+01

3-15


County CO NOX PM10-PRI PM25-PRI SO2 VOC LTO Val Verde 1.26E-01 3.10E-03 2.51E-03 7.16E-03 1.05E-03 6.09E-03 2.20E+01

Van Zandt 3.33E-02 6.85E-04 5.13E-04 3.44E-04 6.71E-05 7.59E-04 5.79E+00

Victoria 9.68E-01 4.79E-02 4.63E-02 7.24E-01 6.87E-02 3.55E-01 8.76E+01

Walker 2.74E-01 8.21E-03 7.15E-03 6.62E-02 6.52E-03 3.64E-02 4.10E+01

Waller 1.73E-01 3.60E-03 2.75E-03 1.99E-03 3.99E-04 4.38E-03 3.04E+01

Ward 1.02E-01 2.14E-03 1.65E-03 1.24E-03 2.51E-04 2.72E-03 1.81E+01

Washington 9.96E-02 2.09E-03 1.60E-03 1.49E-03 2.64E-04 2.71E-03 1.75E+01

Webb 1.33E+00 4.71E-02 4.45E-02 7.71E-01 7.66E-02 3.36E-01 1.29E+02

Wharton 1.17E-01 2.50E-03 1.94E-03 2.89E-03 4.18E-04 3.74E-03 2.05E+01

Wheeler 1.04E-02 2.17E-04 1.67E-04 1.25E-04 2.53E-05 2.75E-04 1.84E+00

Wichita 2.26E+00 1.04E-01 9.91E-02 1.51E+00 1.44E-01 7.45E-01 2.22E+02

Wilbarger 1.33E-01 2.84E-03 2.20E-03 3.11E-03 4.63E-04 4.20E-03 2.33E+01

Willacy 1.25E-02 2.58E-04 1.94E-04 1.30E-04 2.55E-05 2.88E-04 2.18E+00

Williamson 1.19E+00 2.54E-02 1.96E-02 2.15E-02 3.58E-03 3.47E-02 2.09E+02

Wilson 9.38E-03 1.85E-04 1.28E-04 5.08E-05 7.81E-06 1.18E-04 1.56E+00

Winkler 1.19E-02 3.08E-04 2.59E-04 1.66E-03 1.71E-04 1.03E-03 1.94E+00

Wise 3.81E-01 7.93E-03 6.05E-03 4.40E-03 8.82E-04 9.67E-03 6.70E+01

Wood 1.91E-01 3.99E-03 3.07E-03 2.30E-03 4.65E-04 5.05E-03 3.37E+01

Yoakum 8.05E-02 1.68E-03 1.29E-03 9.76E-04 1.97E-04 2.14E-03 1.42E+01

Young 1.28E-01 2.68E-03 2.06E-03 1.70E-03 3.27E-04 3.47E-03 2.26E+01

Zapata 2.74E-02 5.69E-04 4.35E-04 3.19E-04 6.39E-05 7.00E-04 4.81E+00

Zavala 9.56E-03 1.91E-04 1.36E-04 6.88E-05 1.21E-05 1.55E-04 1.62E+00

4-1

4.0 References

1. Federal Aviation Administration. Terminal Area Forecast (TAF). http://aspm.faa.gov/main/taf.asp. Accessed April 21, 2018.

Appendix A Projection Factors

A-1

Table A-1. Projection Factors

State Facility

Identifier Category Base Year

Projecting Year Growth Factor Note

00R GA 2017 2020 1 Airport/Aircraft Specific

00TA GA 2017 2020 1.02438137 Aircraft Specific

00TE GA 2017 2020 1.02438137 Aircraft Specific

00TS GA 2017 2020 1.02438137 Aircraft Specific

00TX AT 2017 2020 0.803340056 Aircraft Specific

00XS GA 2017 2020 1.02438137 Aircraft Specific



01TX GA 2017 2020 1.02438137 Aircraft Specific

01XA GA 2017 2020 1.02438137 Aircraft Specific



















06R GA 2017 2020 1.02438137 Aircraft Specific






07F AT 2017 2020 1 Airport/Aircraft Specific

07F GA 2017 2020 1 Airport/Aircraft Specific


A-2


State Facility













09T GA 2017 2020 1.02438137 Aircraft Specific





0F2 AT 2017 2020 1 Airport/Aircraft Specific

0F2 GA 2017 2020 1 Airport/Aircraft Specific

0F2 MIL 2017 2020 1 Airport/Aircraft Specific

0T7 GA 2017 2020 1.02438137 Aircraft Specific

0TA0 GA 2017 2020 1.02438137 Aircraft Specific










0TE0 GA 2017 2020 1.02438137 Aircraft Specific








A-3


State Facility





0TS1 GA 2017 2020 1.02438137 Aircraft Specific









0TX0 GA 2017 2020 1.02438137 Aircraft Specific










0XA0 GA 2017 2020 1.02438137 Aircraft Specific










0XS0 GA 2017 2020 1.02438137 Aircraft Specific






A-4


State Facility







10F GA 2017 2020 1.02438137 Aircraft Specific








11R MIL 2017 2020 1 Airport/Aircraft Specific

























A-5


State Facility













16X GA 2017 2020 1.02438137 Aircraft Specific




















1E2 GA 2017 2020 1.02438137 Aircraft Specific




1F7 GA 2017 2020 1.02438137 Aircraft Specific



A-6


State Facility








































A-7


State Facility



1X1 GA 2017 2020 1.02438137 Aircraft Specific





































A-8


State Facility



























26R MIL 2017 2020 1 Airport/Aircraft Specific













A-9


State Facility











29TE AT 2017 2020 0.803340056 Aircraft Specific













2H5 GA 2017 2020 1.02438137 Aircraft Specific

2KL GA 2017 2020 1.02438137 Aircraft Specific

2R9 AC 2017 2020 1 Airport/Aircraft Specific

2R9 GA 2017 2020 1 Airport/Aircraft Specific

2R9 MIL 2017 2020 1 Airport/Aircraft Specific

2T1 GA 2017 2020 1 Airport/Aircraft Specific











A-10


State Facility








































A-11


State Facility








































A-12


State Facility






























39TA AT 2017 2020 0.803340056 Aircraft Specific









3R9 GA 2017 2020 1.02438137 Aircraft Specific

A-13


State Facility








































A-14


State Facility








































A-15


State Facility








































A-16


State Facility




49T GA 2017 2020 1 Airport/Aircraft Specific






4F2 MIL 2017 2020 1 Airport/Aircraft Specific






























A-17


State Facility








































A-18


State Facility




52F AT 2017 2020 0.803340056 Aircraft Specific




































A-19


State Facility











5C1 GA 2017 2020 1.02438137 Aircraft Specific





























A-20


State Facility








































A-21


State Facility








































A-22


State Facility













6R3 GA 2017 2020 1 Airport/Aircraft Specific

6R3 MIL 2017 2020 1 Airport/Aircraft Specific







6TA5 AT 2017 2020 0.803340056 Aircraft Specific



















A-23


State Facility








































A-24


State Facility








































A-25


State Facility








































A-26


State Facility



































81D GA 2017 2020 1.02438137 Aircraft Specific





A-27


State Facility








































A-28


State Facility








































A-29


State Facility








































A-30


State Facility








































A-31


State Facility








































A-32


State Facility



















ABI AC 2017 2020 1 Airport/Aircraft Specific

ABI AT 2017 2020 1.020166647 Airport/Aircraft Specific

ABI GA 2017 2020 1.016258455 Airport/Aircraft Specific

ABI MIL 2017 2020 1 Airport/Aircraft Specific

ACT AC 2017 2020 1 Airport/Aircraft Specific

ACT AT 2017 2020 1.030811056 Airport/Aircraft Specific

ACT GA 2017 2020 1.041262498 Airport/Aircraft Specific

ACT MIL 2017 2020 1 Airport/Aircraft Specific

ADS AC 2017 2020 1 Airport/Aircraft Specific

ADS AT 2017 2020 1 Airport/Aircraft Specific

ADS GA 2017 2020 0.981080518 Airport/Aircraft Specific

ADS MIL 2017 2020 1 Airport/Aircraft Specific

AFW AC 2017 2020 1.045785248 Airport/Aircraft Specific

AFW AT 2017 2020 1.03216692 Airport/Aircraft Specific

AFW GA 2017 2020 1.015489605 Airport/Aircraft Specific

AFW MIL 2017 2020 1 Airport/Aircraft Specific

ALI GA 2017 2020 1 Airport/Aircraft Specific

ALI MIL 2017 2020 1 Airport/Aircraft Specific

AMA AC 2017 2020 1.100922561 Airport/Aircraft Specific

AMA AT 2017 2020 0.81385214 Airport/Aircraft Specific

AMA GA 2017 2020 1.016547558 Airport/Aircraft Specific

A-33


State Facility



AMA MIL 2017 2020 1 Airport/Aircraft Specific

APY GA 2017 2020 1.02438137 Aircraft Specific

AQO GA 2017 2020 1 Airport/Aircraft Specific

AQO MIL 2017 2020 1 Airport/Aircraft Specific

ARM GA 2017 2020 1 Airport/Aircraft Specific

ARM MIL 2017 2020 1 Airport/Aircraft Specific

ASL GA 2017 2020 1 Airport/Aircraft Specific

ATA GA 2017 2020 1 Airport/Aircraft Specific

AUS AC 2017 2020 1.171919961 Airport/Aircraft Specific

AUS AT 2017 2020 1.003952309 Airport/Aircraft Specific

AUS GA 2017 2020 1.004686107 Airport/Aircraft Specific

AUS MIL 2017 2020 1 Airport/Aircraft Specific

AXH AT 2017 2020 1 Airport/Aircraft Specific

AXH GA 2017 2020 1.079596316 Airport/Aircraft Specific

AXH MIL 2017 2020 1 Airport/Aircraft Specific

BAZ AC 2017 2020 1 Airport/Aircraft Specific

BAZ AT 2017 2020 1 Airport/Aircraft Specific

BAZ GA 2017 2020 1.146599071 Airport/Aircraft Specific

BAZ MIL 2017 2020 1 Airport/Aircraft Specific

BBD AT 2017 2020 1 Airport/Aircraft Specific

BBD GA 2017 2020 1 Airport/Aircraft Specific

BBD MIL 2017 2020 1 Airport/Aircraft Specific

BEA GA 2017 2020 1 Airport/Aircraft Specific

BFE GA 2017 2020 1 Airport/Aircraft Specific

BGD GA 2017 2020 1 Airport/Aircraft Specific

BGD MIL 2017 2020 1 Airport/Aircraft Specific

BIF AC 2017 2020 1.133308569 Aircraft Specific

BIF GA 2017 2020 1.02438137 Aircraft Specific

BKD GA 2017 2020 1 Airport/Aircraft Specific

BKS GA 2017 2020 1 Airport/Aircraft Specific

BMQ GA 2017 2020 1 Airport/Aircraft Specific

BMQ MIL 2017 2020 1 Airport/Aircraft Specific

BMT GA 2017 2020 1 Airport/Aircraft Specific

BMT MIL 2017 2020 1 Airport/Aircraft Specific

BPG GA 2017 2020 1 Airport/Aircraft Specific

BPG MIL 2017 2020 1 Airport/Aircraft Specific

BPT AT 2017 2020 1.005192557 Airport/Aircraft Specific

A-34


State Facility



BPT GA 2017 2020 1.061366181 Airport/Aircraft Specific

BPT MIL 2017 2020 1 Airport/Aircraft Specific

BRO AC 2017 2020 1.829051988 Airport/Aircraft Specific

BRO AT 2017 2020 0.830183193 Airport/Aircraft Specific

BRO GA 2017 2020 0.97092927 Airport/Aircraft Specific

BRO MIL 2017 2020 1 Airport/Aircraft Specific

BWD AT 2017 2020 1 Airport/Aircraft Specific

BWD GA 2017 2020 1 Airport/Aircraft Specific

BWD MIL 2017 2020 1 Airport/Aircraft Specific

BYY GA 2017 2020 1 Airport/Aircraft Specific

BYY MIL 2017 2020 1 Airport/Aircraft Specific

CDS GA 2017 2020 1.02438137 Aircraft Specific

CFD GA 2017 2020 1 Airport/Aircraft Specific

CLL AC 2017 2020 1 Airport/Aircraft Specific

CLL AT 2017 2020 1.039782651 Airport/Aircraft Specific

CLL GA 2017 2020 0.990006387 Airport/Aircraft Specific

CLL MIL 2017 2020 1 Airport/Aircraft Specific

CNW AC 2017 2020 1 Airport/Aircraft Specific

CNW AT 2017 2020 1 Airport/Aircraft Specific

CNW GA 2017 2020 1.024571164 Airport/Aircraft Specific

CNW MIL 2017 2020 1 Airport/Aircraft Specific

COM GA 2017 2020 1 Airport/Aircraft Specific

COT AT 2017 2020 1 Airport/Aircraft Specific

COT GA 2017 2020 1 Airport/Aircraft Specific

COT MIL 2017 2020 1 Airport/Aircraft Specific

CPT AT 2017 2020 1 Airport/Aircraft Specific

CPT GA 2017 2020 1.027943931 Airport/Aircraft Specific

CPT MIL 2017 2020 1 Airport/Aircraft Specific

CRP AC 2017 2020 1.156454569 Airport/Aircraft Specific

CRP AT 2017 2020 0.865254923 Airport/Aircraft Specific

CRP GA 2017 2020 0.977113472 Airport/Aircraft Specific

CRP MIL 2017 2020 1 Airport/Aircraft Specific

CRS GA 2017 2020 1 Airport/Aircraft Specific

CVB AC 2017 2020 1 Airport/Aircraft Specific

CVB GA 2017 2020 1 Airport/Aircraft Specific

CWC AT 2017 2020 1 Airport/Aircraft Specific

CWC GA 2017 2020 1 Airport/Aircraft Specific

A-35


State Facility



CWC MIL 2017 2020 1 Airport/Aircraft Specific

CXO AT 2017 2020 1.062440419 Airport/Aircraft Specific

CXO GA 2017 2020 0.9612191 Airport/Aircraft Specific

CXO MIL 2017 2020 1 Airport/Aircraft Specific

CZT GA 2017 2020 1 Airport/Aircraft Specific

DAL AC 2017 2020 1.050033826 Airport/Aircraft Specific

DAL AT 2017 2020 1.030309851 Airport/Aircraft Specific

DAL GA 2017 2020 1.002217933 Airport/Aircraft Specific

DAL MIL 2017 2020 1 Airport/Aircraft Specific

DFW AC 2017 2020 1.164748199 Airport/Aircraft Specific

DFW AT 2017 2020 0.483581128 Airport/Aircraft Specific

DFW GA 2017 2020 1.048317771 Airport/Aircraft Specific

DHT GA 2017 2020 1 Airport/Aircraft Specific

DHT MIL 2017 2020 1 Airport/Aircraft Specific

DKR GA 2017 2020 1 Airport/Aircraft Specific

DLF GA 2017 2020 1.02438137 Aircraft Specific

DRT AC 2017 2020 1 Airport/Aircraft Specific

DRT AT 2017 2020 1 Airport/Aircraft Specific

DRT GA 2017 2020 1 Airport/Aircraft Specific

DTO AC 2017 2020 1 Airport/Aircraft Specific

DTO AT 2017 2020 1 Airport/Aircraft Specific

DTO GA 2017 2020 1.015608207 Airport/Aircraft Specific

DTO MIL 2017 2020 1 Airport/Aircraft Specific

DUX GA 2017 2020 1 Airport/Aircraft Specific

DUX MIL 2017 2020 1 Airport/Aircraft Specific

DWH AC 2017 2020 1 Airport/Aircraft Specific

DWH AT 2017 2020 1 Airport/Aircraft Specific

DWH GA 2017 2020 1.051503956 Airport/Aircraft Specific

DWH MIL 2017 2020 1 Airport/Aircraft Specific

DYS AC 2017 2020 1.133308569 Aircraft Specific

DYS GA 2017 2020 1.02438137 Aircraft Specific

DZB AT 2017 2020 0.803340056 Aircraft Specific

DZB GA 2017 2020 1.02438137 Aircraft Specific

E01 GA 2017 2020 1 Airport/Aircraft Specific


E13 GA 2017 2020 1.02438137 Aircraft Specific


A-36


State Facility



E30 AT 2017 2020 0.803340056 Aircraft Specific





E38 MIL 2017 2020 1 Airport/Aircraft Specific








EBG GA 2017 2020 1 Airport/Aircraft Specific

EBG MIL 2017 2020 1 Airport/Aircraft Specific

ECU GA 2017 2020 1.02438137 Aircraft Specific

EDC GA 2017 2020 1.02438137 Aircraft Specific

EFD AC 2017 2020 1 Airport/Aircraft Specific

EFD AT 2017 2020 1 Airport/Aircraft Specific

EFD GA 2017 2020 1 Airport/Aircraft Specific

EFD MIL 2017 2020 1 Airport/Aircraft Specific

ELA GA 2017 2020 1 Airport/Aircraft Specific

ELP AC 2017 2020 1.078123262 Airport/Aircraft Specific

ELP AT 2017 2020 0.913625393 Airport/Aircraft Specific

ELP GA 2017 2020 1.000118462 Airport/Aircraft Specific

ELP MIL 2017 2020 1 Airport/Aircraft Specific

ERV GA 2017 2020 1.07163984 Airport/Aircraft Specific

ETN GA 2017 2020 1 Airport/Aircraft Specific

EYQ GA 2017 2020 1.02438137 Aircraft Specific

F00 GA 2017 2020 1 Airport/Aircraft Specific



F05 MIL 2017 2020 1 Airport/Aircraft Specific



F14 GA 2017 2020 1.02438137 Aircraft Specific


A-37


State Facility









F44 AT 2017 2020 1 Airport/Aircraft Specific



















FST AT 2017 2020 1 Airport/Aircraft Specific

FST GA 2017 2020 1 Airport/Aircraft Specific

FST MIL 2017 2020 1 Airport/Aircraft Specific

FTW AC 2017 2020 1 Airport/Aircraft Specific

FTW AT 2017 2020 1.029770445 Airport/Aircraft Specific

FTW GA 2017 2020 1.063598293 Airport/Aircraft Specific

FTW MIL 2017 2020 1 Airport/Aircraft Specific

FWS AT 2017 2020 1.076759062 Airport/Aircraft Specific

FWS GA 2017 2020 1.03350213 Airport/Aircraft Specific

FWS MIL 2017 2020 1 Airport/Aircraft Specific

GDJ GA 2017 2020 1 Airport/Aircraft Specific

GGG AC 2017 2020 1 Airport/Aircraft Specific

A-38


State Facility



GGG AT 2017 2020 1.014745783 Airport/Aircraft Specific

GGG GA 2017 2020 1.02178241 Airport/Aircraft Specific

GGG MIL 2017 2020 1 Airport/Aircraft Specific

GKY AC 2017 2020 1 Airport/Aircraft Specific

GKY AT 2017 2020 1 Airport/Aircraft Specific

GKY GA 2017 2020 0.991772373 Airport/Aircraft Specific

GKY MIL 2017 2020 1 Airport/Aircraft Specific

GLE GA 2017 2020 1 Airport/Aircraft Specific

GLE MIL 2017 2020 1 Airport/Aircraft Specific

GLS AC 2017 2020 1 Airport/Aircraft Specific

GLS AT 2017 2020 1.030379747 Airport/Aircraft Specific

GLS GA 2017 2020 1.013449806 Airport/Aircraft Specific

GLS MIL 2017 2020 1 Airport/Aircraft Specific

GNC AT 2017 2020 1 Airport/Aircraft Specific

GNC GA 2017 2020 1 Airport/Aircraft Specific

GOP GA 2017 2020 1 Airport/Aircraft Specific

GOP MIL 2017 2020 1 Airport/Aircraft Specific

GPM AT 2017 2020 1 Airport/Aircraft Specific

GPM GA 2017 2020 1.047764999 Airport/Aircraft Specific

GPM MIL 2017 2020 1 Airport/Aircraft Specific

GRK AC 2017 2020 1.284463277 Airport/Aircraft Specific

GRK AT 2017 2020 0.646396396 Airport/Aircraft Specific

GRK GA 2017 2020 1 Airport/Aircraft Specific

GRK MIL 2017 2020 1 Airport/Aircraft Specific

GTU AT 2017 2020 1 Airport/Aircraft Specific

GTU GA 2017 2020 1.065881838 Airport/Aircraft Specific

GTU MIL 2017 2020 1 Airport/Aircraft Specific

GVT GA 2017 2020 1 Airport/Aircraft Specific

GVT MIL 2017 2020 1 Airport/Aircraft Specific

GYB GA 2017 2020 1 Airport/Aircraft Specific

GYB MIL 2017 2020 1 Airport/Aircraft Specific

GYI AT 2017 2020 1.063829787 Airport/Aircraft Specific

GYI GA 2017 2020 1.0518932 Airport/Aircraft Specific

GYI MIL 2017 2020 1 Airport/Aircraft Specific

H70 GA 2017 2020 1.02438137 Aircraft Specific

HBV GA 2017 2020 1 Airport/Aircraft Specific

HDO GA 2017 2020 1.028116429 Airport/Aircraft Specific

A-39


State Facility



HHF GA 2017 2020 1 Airport/Aircraft Specific

HLR GA 2017 2020 1.02438137 Aircraft Specific

HOU AC 2017 2020 1.092001728 Airport/Aircraft Specific

HOU AT 2017 2020 0.993956 Airport/Aircraft Specific

HOU GA 2017 2020 1.030313978 Airport/Aircraft Specific

HOU MIL 2017 2020 1 Airport/Aircraft Specific

HPY GA 2017 2020 1.02438137 Aircraft Specific

HQZ AT 2017 2020 1 Airport/Aircraft Specific

HQZ GA 2017 2020 1.138867642 Airport/Aircraft Specific

HQZ MIL 2017 2020 1 Airport/Aircraft Specific

HRL AC 2017 2020 1.077537858 Airport/Aircraft Specific

HRL AT 2017 2020 0.899865591 Airport/Aircraft Specific

HRL GA 2017 2020 1.038779361 Airport/Aircraft Specific

HRL MIL 2017 2020 1 Airport/Aircraft Specific

HRX AT 2017 2020 1 Airport/Aircraft Specific

HRX GA 2017 2020 1 Airport/Aircraft Specific

HRX MIL 2017 2020 1 Airport/Aircraft Specific

HYI AC 2017 2020 1 Airport/Aircraft Specific

HYI AT 2017 2020 1 Airport/Aircraft Specific

HYI GA 2017 2020 1.211676822 Airport/Aircraft Specific

HYI MIL 2017 2020 1 Airport/Aircraft Specific

I06 GA 2017 2020 1 Airport/Aircraft Specific

IAH AC 2017 2020 1.124387732 Airport/Aircraft Specific

IAH AT 2017 2020 0.627117352 Airport/Aircraft Specific

IAH GA 2017 2020 1.031731178 Airport/Aircraft Specific

IAH MIL 2017 2020 1 Airport/Aircraft Specific

IKG AT 2017 2020 1 Airport/Aircraft Specific

IKG GA 2017 2020 1 Airport/Aircraft Specific

IKG MIL 2017 2020 1 Airport/Aircraft Specific

ILE GA 2017 2020 1 Airport/Aircraft Specific

ILE MIL 2017 2020 1 Airport/Aircraft Specific

INJ GA 2017 2020 1 Airport/Aircraft Specific

INK GA 2017 2020 1 Airport/Aircraft Specific

INK MIL 2017 2020 1 Airport/Aircraft Specific

IWS AT 2017 2020 1 Airport/Aircraft Specific

IWS GA 2017 2020 1.043897206 Airport/Aircraft Specific

JAS GA 2017 2020 1 Airport/Aircraft Specific

A-40


State Facility



JCT GA 2017 2020 1 Airport/Aircraft Specific

JCT MIL 2017 2020 1 Airport/Aircraft Specific

JDD GA 2017 2020 1.02438137 Aircraft Specific

JSO GA 2017 2020 1 Airport/Aircraft Specific

JSO MIL 2017 2020 1 Airport/Aircraft Specific

JWY GA 2017 2020 1 Airport/Aircraft Specific

JWY MIL 2017 2020 1 Airport/Aircraft Specific

JXI GA 2017 2020 1 Airport/Aircraft Specific

JZT AC 2017 2020 1 Airport/Aircraft Specific

JZT AT 2017 2020 1 Airport/Aircraft Specific

JZT GA 2017 2020 0.991772373 Airport/Aircraft Specific

K84R GA 2017 2020 1.02438137 Aircraft Specific

KLBB AC 2017 2020 1.133308569 Aircraft Specific

KLBB AT 2017 2020 0.803340056 Aircraft Specific

KLBB GA 2017 2020 1.02438137 Aircraft Specific

KLOI AC 2017 2020 1.133308569 Aircraft Specific

KLOI AT 2017 2020 0.803340056 Aircraft Specific

KLOI GA 2017 2020 1.02438137 Aircraft Specific

KLOI MIL 2017 2020 1 Aircraft Specific

KMAF AC 2017 2020 1.133308569 Aircraft Specific

KMAF AT 2017 2020 0.803340056 Aircraft Specific

KMAF GA 2017 2020 1.02438137 Aircraft Specific

KMDD GA 2017 2020 1.02438137 Aircraft Specific

KMFE AC 2017 2020 1.133308569 Aircraft Specific

KMFE AT 2017 2020 0.803340056 Aircraft Specific

KMFE GA 2017 2020 1.02438137 Aircraft Specific

KMRF GA 2017 2020 1.02438137 Aircraft Specific

KSAT AC 2017 2020 1.133308569 Aircraft Specific

KSAT AT 2017 2020 0.803340056 Aircraft Specific

KSAT GA 2017 2020 1.02438137 Aircraft Specific

KSAT MIL 2017 2020 1 Aircraft Specific

KSGR GA 2017 2020 1.02438137 Aircraft Specific

KSJT AC 2017 2020 1.133308569 Aircraft Specific

KSJT AT 2017 2020 0.803340056 Aircraft Specific

KSKF AC 2017 2020 1.133308569 Aircraft Specific

KSKF GA 2017 2020 1.02438137 Aircraft Specific

KSPS AC 2017 2020 1.133308569 Aircraft Specific

A-41


State Facility



KSPS AT 2017 2020 0.803340056 Aircraft Specific

KTYR AC 2017 2020 1.133308569 Aircraft Specific

KTYR AT 2017 2020 0.803340056 Aircraft Specific

KUVA GA 2017 2020 1.02438137 Aircraft Specific

KVCT GA 2017 2020 1.02438137 Aircraft Specific

LBB AT 2017 2020 0.957310009 Airport/Aircraft Specific

LBB GA 2017 2020 1.021877604 Airport/Aircraft Specific

LBB MIL 2017 2020 1 Airport/Aircraft Specific

LBR GA 2017 2020 1 Airport/Aircraft Specific

LBX AC 2017 2020 1 Airport/Aircraft Specific

LBX AT 2017 2020 1 Airport/Aircraft Specific

LBX GA 2017 2020 1.071579423 Airport/Aircraft Specific

LBX MIL 2017 2020 1 Airport/Aircraft Specific

LFK AT 2017 2020 1 Airport/Aircraft Specific

LFK GA 2017 2020 1 Airport/Aircraft Specific

LFK MIL 2017 2020 1 Airport/Aircraft Specific

LHB GA 2017 2020 1 Airport/Aircraft Specific

LIU GA 2017 2020 1 Airport/Aircraft Specific

LIU MIL 2017 2020 1 Airport/Aircraft Specific

LLN AT 2017 2020 1 Airport/Aircraft Specific

LLN GA 2017 2020 1 Airport/Aircraft Specific

LNC GA 2017 2020 1.044263139 Airport/Aircraft Specific

LNC MIL 2017 2020 1 Airport/Aircraft Specific

LRD AT 2017 2020 0.681501278 Airport/Aircraft Specific

LRD GA 2017 2020 1.017357002 Airport/Aircraft Specific

LRD MIL 2017 2020 1 Airport/Aircraft Specific

LUD GA 2017 2020 1 Airport/Aircraft Specific

LVJ AT 2017 2020 1 Airport/Aircraft Specific

LVJ GA 2017 2020 1.05787952 Airport/Aircraft Specific

LXY GA 2017 2020 1 Airport/Aircraft Specific

LZZ GA 2017 2020 1 Airport/Aircraft Specific

MAF AT 2017 2020 0.745252991 Airport/Aircraft Specific

MAF GA 2017 2020 1.061315929 Airport/Aircraft Specific

MAF MIL 2017 2020 1 Airport/Aircraft Specific

MDA GA 2017 2020 1.02438137 Aircraft Specific

MDD AT 2017 2020 1 Airport/Aircraft Specific

MDD GA 2017 2020 1 Airport/Aircraft Specific

A-42


State Facility



MDD MIL 2017 2020 1 Airport/Aircraft Specific

MFE AT 2017 2020 1.066934894 Airport/Aircraft Specific

MFE GA 2017 2020 0.999342676 Airport/Aircraft Specific

MFE MIL 2017 2020 1 Airport/Aircraft Specific

MKN GA 2017 2020 1 Airport/Aircraft Specific

MNZ AT 2017 2020 1 Airport/Aircraft Specific

MNZ GA 2017 2020 1 Airport/Aircraft Specific

MRF GA 2017 2020 1 Airport/Aircraft Specific

MWL GA 2017 2020 1 Airport/Aircraft Specific

MWL MIL 2017 2020 1 Airport/Aircraft Specific

NFW GA 2017 2020 1.02438137 Aircraft Specific

NGP GA 2017 2020 1.02438137 Aircraft Specific

NGW GA 2017 2020 1.02438137 Aircraft Specific

NOG GA 2017 2020 1.02438137 Aircraft Specific

NQI GA 2017 2020 1.02438137 Aircraft Specific

NWL GA 2017 2020 1.02438137 Aircraft Specific

O07 GA 2017 2020 1.02438137 Aircraft Specific

OCH GA 2017 2020 1 Airport/Aircraft Specific

OCH MIL 2017 2020 1 Airport/Aircraft Specific

ODO GA 2017 2020 1.028209433 Airport/Aircraft Specific

ONY GA 2017 2020 1 Airport/Aircraft Specific

ORG AT 2017 2020 1 Airport/Aircraft Specific

ORG GA 2017 2020 1 Airport/Aircraft Specific

OSA GA 2017 2020 1 Airport/Aircraft Specific

OZA GA 2017 2020 1 Airport/Aircraft Specific

OZA MIL 2017 2020 1 Airport/Aircraft Specific

PEQ AT 2017 2020 1 Airport/Aircraft Specific

PEQ GA 2017 2020 1 Airport/Aircraft Specific

PEQ MIL 2017 2020 1 Airport/Aircraft Specific

PEZ AT 2017 2020 1 Airport/Aircraft Specific

PEZ GA 2017 2020 1 Airport/Aircraft Specific

PEZ MIL 2017 2020 1 Airport/Aircraft Specific

PIL AT 2017 2020 1 Airport/Aircraft Specific

PIL GA 2017 2020 1 Airport/Aircraft Specific

PIL MIL 2017 2020 1 Airport/Aircraft Specific

PKV GA 2017 2020 1 Airport/Aircraft Specific

PKV MIL 2017 2020 1 Airport/Aircraft Specific

A-43


State Facility



PNX GA 2017 2020 1.02438137 Aircraft Specific

PPA GA 2017 2020 1 Airport/Aircraft Specific

PRX AT 2017 2020 1 Airport/Aircraft Specific

PRX GA 2017 2020 1 Airport/Aircraft Specific

PRX MIL 2017 2020 1 Airport/Aircraft Specific

PSN GA 2017 2020 1 Airport/Aircraft Specific

PSN MIL 2017 2020 1 Airport/Aircraft Specific

PSX GA 2017 2020 1 Airport/Aircraft Specific

PSX MIL 2017 2020 1 Airport/Aircraft Specific

PVW GA 2017 2020 1.028378322 Airport/Aircraft Specific

PVW MIL 2017 2020 1 Airport/Aircraft Specific

PWG AT 2017 2020 1.085603113 Airport/Aircraft Specific

PWG GA 2017 2020 1.073674217 Airport/Aircraft Specific

PWG MIL 2017 2020 1 Airport/Aircraft Specific

PYX GA 2017 2020 1 Airport/Aircraft Specific

RAS GA 2017 2020 1.02438137 Aircraft Specific

RBD AC 2017 2020 1 Airport/Aircraft Specific

RBD AT 2017 2020 1 Airport/Aircraft Specific

RBD GA 2017 2020 1.024523608 Airport/Aircraft Specific

RBD MIL 2017 2020 1 Airport/Aircraft Specific

RBO GA 2017 2020 1 Airport/Aircraft Specific

RCK GA 2017 2020 1.02438137 Aircraft Specific

RFG GA 2017 2020 1 Airport/Aircraft Specific

RFI GA 2017 2020 1 Airport/Aircraft Specific

RFI MIL 2017 2020 1 Airport/Aircraft Specific

RKP GA 2017 2020 1 Airport/Aircraft Specific

RKP MIL 2017 2020 1 Airport/Aircraft Specific

RND GA 2017 2020 1.02438137 Aircraft Specific

RPH GA 2017 2020 1 Airport/Aircraft Specific

RPH MIL 2017 2020 1 Airport/Aircraft Specific

RWV GA 2017 2020 1.02438137 Aircraft Specific

RYW GA 2017 2020 1 Airport/Aircraft Specific

SAT AC 2017 2020 1.086762246 Airport/Aircraft Specific

SAT AT 2017 2020 1.011804131 Airport/Aircraft Specific

SAT GA 2017 2020 0.954266855 Airport/Aircraft Specific

SAT MIL 2017 2020 1 Airport/Aircraft Specific

SEP AT 2017 2020 1 Airport/Aircraft Specific

A-44


State Facility



SEP GA 2017 2020 1 Airport/Aircraft Specific

SEP MIL 2017 2020 1 Airport/Aircraft Specific

SEQ GA 2017 2020 1.02438137 Aircraft Specific

SGR AT 2017 2020 1.030259134 Airport/Aircraft Specific

SGR GA 2017 2020 0.990563128 Airport/Aircraft Specific

SGR MIL 2017 2020 1 Airport/Aircraft Specific

SKF GA 2017 2020 1 Airport/Aircraft Specific

SKF MIL 2017 2020 1 Airport/Aircraft Specific

SLR AT 2017 2020 1 Airport/Aircraft Specific

SLR GA 2017 2020 1 Airport/Aircraft Specific

SLR MIL 2017 2020 1 Airport/Aircraft Specific

SNK GA 2017 2020 1 Airport/Aircraft Specific

SOA GA 2017 2020 1.02438137 Aircraft Specific

SPS GA 2017 2020 1 Airport/Aircraft Specific

SPS MIL 2017 2020 1 Airport/Aircraft Specific

SSF AC 2017 2020 1 Airport/Aircraft Specific

SSF AT 2017 2020 1 Airport/Aircraft Specific

SSF GA 2017 2020 1.013441863 Airport/Aircraft Specific

SSF MIL 2017 2020 1 Airport/Aircraft Specific

SWI GA 2017 2020 1.02438137 Aircraft Specific

SWW GA 2017 2020 1 Airport/Aircraft Specific

T00 GA 2017 2020 1 Airport/Aircraft Specific

T05 GA 2017 2020 1.02438137 Aircraft Specific















A-45


State Facility












T41 GA 2017 2020 1.071584755 Airport/Aircraft Specific







T57 AT 2017 2020 1 Airport/Aircraft Specific






T65 GA 2017 2020 1.057881471 Airport/Aircraft Specific

T65 MIL 2017 2020 1 Airport/Aircraft Specific














A-46


State Facility














TA00 GA 2017 2020 1.02438137 Aircraft Specific


























A-47


State Facility








































A-48


State Facility


































TDW GA 2017 2020 1.02438137 Aircraft Specific

TE00 GA 2017 2020 1.02438137 Aircraft Specific





A-49


State Facility








































A-50


State Facility








































A-51


State Facility






















TFP GA 2017 2020 1 Airport/Aircraft Specific

TKI AC 2017 2020 1 Airport/Aircraft Specific

TKI AT 2017 2020 1 Airport/Aircraft Specific

TKI GA 2017 2020 1.069807661 Airport/Aircraft Specific

TKI MIL 2017 2020 1 Airport/Aircraft Specific

TME GA 2017 2020 1.02438137 Aircraft Specific

TPL GA 2017 2020 1.086960299 Airport/Aircraft Specific

TPL MIL 2017 2020 1 Airport/Aircraft Specific

TRL AT 2017 2020 1 Airport/Aircraft Specific

TRL GA 2017 2020 1 Airport/Aircraft Specific

TS00 GA 2017 2020 1.02438137 Aircraft Specific








A-52


State Facility








































A-53


State Facility








































A-54


State Facility
















TX00 GA 2017 2020 1.02438137 Aircraft Specific
























A-55


State Facility








































A-56


State Facility





































TYR AT 2017 2020 1.039340469 Airport/Aircraft Specific

TYR GA 2017 2020 0.96486332 Airport/Aircraft Specific

TYR MIL 2017 2020 1 Airport/Aircraft Specific

A-57


State Facility



UTS AT 2017 2020 1 Airport/Aircraft Specific

UTS GA 2017 2020 1 Airport/Aircraft Specific

UTS MIL 2017 2020 1 Airport/Aircraft Specific

UVA AT 2017 2020 1 Airport/Aircraft Specific

UVA GA 2017 2020 1 Airport/Aircraft Specific

UVA MIL 2017 2020 1 Airport/Aircraft Specific

VCT AT 2017 2020 1.011245314 Airport/Aircraft Specific

VCT GA 2017 2020 0.971835581 Airport/Aircraft Specific

VCT MIL 2017 2020 1 Airport/Aircraft Specific

VHN GA 2017 2020 1 Airport/Aircraft Specific

VHN MIL 2017 2020 1 Airport/Aircraft Specific

WEA GA 2017 2020 1.02438137 Aircraft Specific

X09 GA 2017 2020 1.02438137 Aircraft Specific




XA0 GA 2017 2020 1.02438137 Aircraft Specific





















A-58


State Facility








































A-59


State Facility








































A-60


State Facility




XBP GA 2017 2020 1 Airport/Aircraft Specific

XS00 GA 2017 2020 1.02438137 Aircraft Specific



































A-61


State Facility








































A-62


State Facility































00TX AT 2017 2020 0.803340056 Aircraft Specific

Appendix B Quality Assurance

B-1

Appendix B Quality Assurance

QUALITY ASSURANCE

All resulting emission inventories were subjected to internal review and QA/QC procedures outlined in the Quality Assurance Project Plan (QAPP) for Development of 2017 Statewide Emissions Inventories for Air Emissions Reporting Requirements and Reasonable Further Progress for Airport Sources Work Order No. 582-18-82508-19, as per the requirements of a Category III QAPP for Data Evaluation or Use for a Secondary Purpose. The Category III QAPP establishes requirements for projects involving data use for secondary purposes. The internal review and QA/QC procedures were consistent with the NRML QAPP requirements. These procedures are outlined below. A. Project Management

Project Staff: The project included a team of technical specialists who are well trained to address each project objective. These staff and their primary responsibility area are delineated as follows. Rick Baker: Mr. Baker is the overall ERG contract manager for this TCEQ contract. He ensures the project implementation follows all contract requirements and that project quality standards are met on all deliverables. He assists in interactions with the TCEQ as required. Donna Tedder: Ms. Tedder provided peer review for the QAPP and oversaw the QA/QC procedures, ensuring Mr. Billings reviews were all in line with the QAPP and ERG’s corporate QA guidelines. Roger Chang: Project manager for this study, Mr. Chang was recommended to the FAA by the US EPA to be a beta tester for the FAA’s Aviation Environmental Design Tool (AEDT) used for this project. Additionally, he has been involved with the development of airport inventories for the US EPA and other federal agencies as well as the TCEQ for over a decade. Richard Billings: Mr. Billings has extensive knowledge and expertise on aircraft and worked as peer reviewer for the project, ensuring that following checks were made:

Reviewed at least ten percent of project data files to check for data transfer issues and to ensure that database queries were implemented correctly.

Project staff used appropriate methodologies and documented data quality activities and the deliverable review process.

The preliminary data and draft/final reports were reviewed by technical staff to ensure that the project objectives and data quality objectives (DQOs) expressed for this study.

The report was reviewed by the project’s editing staff prior to delivery of the draft version to the TCEQ.

B-2

Jennifer Sellers: Ms. Sellers is an experienced environmental scientist who served as the Task Lead for 4 and 5 and Task support for 2, 3, and 6. She is experienced in aircraft emission inventories. Heather Perez: Ms. Perez is an experienced environmental scientist and database manager who served as technical support and QA reviewer for Tasks 3, 4, 5 and 6. She is experienced in aircraft emission inventories. Marty Wolf: Mr. Wolf is an experienced environmental engineer who served as technical support for Task 3, 4, and 5. He is experienced in data collection and formatting. Steve Mendenhall: Mr. Mendenhall is an experienced programmer who served as technical support for tasks 2, 3, 4, and 5. He is experienced with SQL, Access, XML, and various programming languages. Lindsay Dayton: Ms. Dayton is an experienced environmental scientist who served as the Task support for 3, 4 and 5. She is experienced in aircraft emission inventories. Jody Tisano: Ms. Tisano is an administrative assistant who provided administrative and clerical support, mainly on Tasks 5 and 6. She has performed similar work on previous TCEQ projects. Background: The purpose of this project was to develop a set of Statewide and Area-specific emissions inventories (EI) and activity data for all airport sources including aircraft, Auxiliary Power Units (APU), and Ground Support Equipment (GSE). These Els are needed to fulfill the Federal Air Emissions Reporting Requirements (AERR) and support State Implementation Plan (SIP) development. For this project, ERG developed the annual (tons per year) and average summer weekday (tons per day) emissions inventory estimates of Criteria Air Pollutants (CAP), CAP precursors, and Hazardous Air Pollutants (HAP) using the Federal Aviation Agency (FAA) Aviation Environmental Design Tool (AEDT) model. The overall objective of this project was to provide the aircraft mobile sources 2017 evaluation year activity and annual emissions inventory estimates required for the State of Texas for inclusion in the EPA’s 2017 NEI and emissions inventories for SIP development. The previous trend inventory for 2017 was used for every Texas county including estimates for controlled and uncontrolled emissions in both annual (tons per year) and average weekday (tons per day) emissions. The secondary purpose of this project was to develop area-specific emissions inventories necessary to support both an attainment demonstration and a rate of further progress (RFP) analysis for the Houston-Galveston-Brazoria (HGB) eight-county and the Dallas-Fort Worth (DFW) ten-county non-attainment areas to develop the SIP revision(s) for the 2008 eight-hour ozone National Ambient Air Quality Standard (NAAQS). These inventories were based off previously collected data for 2011 and the 2020 inventory was developed by projecting data from the 2017 activity data.

B-3

Project/Task Description:

To meet the project objectives, the following tasks were completed:

Provided an emissions inventory development plan Recompiled the 2011 calendar year data from Work Order 582-11-99776-

FY12- 09 Developed Summer weekday emissions for 2017, 2018, 2020, and 2021 for

the HGB Eight-County and the DFW Ten-County areas using the previous 2011 data

Developed a revised statewide 2011 EI and provided the AEDT files Collected new 2017 national data and local data Developed 2017 statewide inventory and formatted the data into XML for

TexAER and EPA EIS Projected the 2017 statewide inventory to 2020 and provided the 2017 AEDT

files Provided the final report

The project included producing XML files and Excel summary files which were shared with the TCEQ Work Assignment Manager and used in our quality checks. Quality Objectives and Criteria: ERG provided the TCEQ with comprehensive and accurate emission inventories based on the FAA’s latest emission estimating model. Typically, the quality of such inventories was measured by the degree to which local rather than default data were used in their development. ERG documented all the airports from which we solicited data including documentation of repeated calls and emails. Only when there were data gaps in the local data did ERG use national FAA data to gap fill. The FAA data used was obtained from the T-100 dataset that provides aircraft make and model specific data for the 49 airports in Texas that provide commercial air services from a regulated airline. These T-100 data were supplemented with FAA Terminal Area Facility (TAF) data and the FAA’s airport Master Plan data (5010) to quantify aircraft activities in the remaining Texas airports. Note that the 5010 and TAF datasets provide activity data in terms of generic aircraft types. Adjustments were made to the generic LTO counts to avoid double counting with the local data and the T-100 aircraft specific data. The resulting TCEQ airport inventory includes locally provided data, T-100 aircraft specific data, and TAF/5010 generic data to ensure that all Texas airports have representative activity data. The 2011, 2017, and 2020 inventories developed for this project were compared to previous inventory efforts. The 2011 inventory was compared to the 2011 inventory created for the TCEQ’s 2011 NEI submittal (Work Order 582-11-99776-FY12- 09). The 2017 and 2020 inventories were compared to the applicable trend inventories developed from the 2014 inventory submitted to the EPA for the NEI. These comparisons were implemented at the state level to evaluate whether the overall state trend was reasonable; at the county level to see if there were any counties that indicated an unexpected increase or decrease in emissions; and at the airport and aircraft level to identify outliers.

B-4

When outliers were identified, ERG investigated further to ensure that the data were correct and there were no errors in data handling, in creating the input files for AEDT or for generic aircraft data, and the emission queries were evaluated to ensure they were linking the data correctly. Under Task 4, the final emissions inventory and activity data were formatted to meet the TCEQ’s TexAER and EPA’s CERS XML requirements. Special Training/Certification: No special training or certification is required. Documents and Records: The process used to collect data and develop the inventories was documented from start to finish. All procedures and data sources used to create the inventories were presented such that the TCEQ or any third party have sufficient information to independently replicate any part of the process if needed. The process of providing interim products for each work task and obtaining TCEQ review comments enhanced the completeness and quality of the documentation in the final project report. The final report includes this document in the QA section, discussion of any problems encountered, corrective actions taken, and limitation of the data identified in the process of developing the emission inventories. B. Data Generation and Acquisition

ERG recompiled the 2011 data originally obtained from Work Order 582-11-99776-FY12- 09. ERG conducted no additional data acquisition for 2011. ERG obtained various aircraft activity data for 2017. There are two general sources of airport data. The preferred sources are from the local airports. The other data are from the publicly available national information from the FAA. ERG contacted 213 local Texas airports by telephone and email to request 2017 activity data and to identify and characterize control strategies used or planned at each airport. Of the 213 airports contacted, 26 provided data that could be used in the 2017 inventory. To develop the most accurate aircraft emission inventory possible, ERG took two approaches. First, if aircraft-specific make and model data were available, ERG used the FAA’s AEDT model in conjunction with the detailed aircraft activity data either provided by the airport or obtained from T-100. If such detailed data were not available, then ERG applied a more general approach for different aircraft types (i.e., air taxis, general aviation, and military aircraft) using available generic activity data from the local airports, or from the FAA’s TAF dataset and FAA’s 5010 dataset in conjunction with EPA emission estimating methods noted in the National Emission Inventory documentation.

a. Data Management

No hard copy data were received during the project. For this project all data obtained were electronic. Working copies of the original data files were shared with the team, such that the integrity of the original files was maintained. The original files were never

B-5

checked out, and only viewed a couple of times to confirm that the data in the working files were correctly transferred. The electronic working files were stored in a specific project directory on ERG’s network drive in Morrisville, North Carolina. The original data files were kept in a separate folder on the same network. All files on the Morrisville server are backed up daily. Only project team members were granted access to the directories where the working files were stored, such that all members of the team had access to all project data and could perform their work using these files. Once the project was completed, all project electronic files were moved into an archive directory on the network for permanent storage.

C. Assessment and Oversight

Data collection efforts were coordinated so that all ERG team members understood the project goals. Following the kickoff discussions with TCEQ staff and submittal of the work plan, the ERG Project Manager and task leads had internal team meetings to discuss and verify data collection efforts for each project task. Each team member had a clear understanding of all project objectives and deliverables and the data that will be needed to support those deliverables. This coordinated process is seen as essential to efficient and productive data collection. When data were received from airports, federal agencies or the TCEQ, the staff receiving the data put the original data files directly on the Morrisville server and sent a working copy to the appropriate staff responsible for that task. These staff members reviewed and briefly summarized the findings in the data submittal and informed the ERG project manager. The ERG project manager informed the TCEQ project manager of the data submittal noting any issues with the data based on the initial summary. Once the TCEQ project manager approved the data, ERG team members started working with the submitted data. The TCEQ project manager did not direct ERG to exclude any of the compiled data. After the aviation data had been compiled and adjustments were made to avoid double counting, the data were stored in a file format appropriate for inclusion into the AEDT. Peer reviewers knowledgeable about the source category but not directly involved in conducting day to day activities of the project reviewed all data handling methods and results of the work. ERG’s peer reviewers were included in the initial planning stages of this project to ensure the planned approaches were technically sound and that quality checks were planned for critical points in the process. This included review of AEDT input files and output files as well as the generic aircraft type calculations.

ERG peer reviewers did not find any issues with data handling for the AEDT input files nor did they have any problem reproducing the generic emission estimates using the project access database and associated queries.

All final products were reviewed by senior team members prior to submittal to the TCEQ to ensure the project procedures were properly implemented. The ERG Project Manager and task

B-6

leads signed off on all deliverables to the TCEQ documenting that all quality checks were implemented and where problems were identified corrections were made in the preliminary or final dataset, and the draft or final report.

The ERG editor worked directly with task leads, making changes to the draft report to make the document clear and easy to follow. The ERG Project Manager also ensured that the final report included all recommended changes suggested by the TCEQ Project Manager.

Reports to Management: The ERG project manager reported to the TCEQ project manager on a biweekly schedule or sooner if something urgent was raised. D. Data Validation and Usability and Verification and Validation Methods

All information used to develop the emission inventories were checked and reviewed for reasonableness to the extent possible. This included checking activity data and emission factors against the reference source, such as the FAA T-100 and TAF datasets and the EPA’s Documentation for the National Emission Inventory to ensure that the values used were correct (e.g., decimal location is correct, units are converted correctly). A minimum of 10% of the data were audited by an independent reviewer not involved with the inventory development. 100 percent of all calculation queries were checked by having a second staff member replicate the result by independently applying the input data and assumptions to see if the same data were produced.

The ERG data review did not find any formatting issues with the data used for the AEDT model input file or issues with the generic emission calculations.

Activity and emissions data were reviewed by the Project Manager to ensure they were reasonable and consistent (i.e., extremely low or high values that are usually indicative of errors were flagged for further investigation). ERG highlighted NOx emissions as it is a critical pollutant for the nonattainment areas. Any data that were found to be questionable were examined in greater detail to determine what was causing the issue and what adjustments, if any, were required. If data were revised, the procedures and assumptions used were documented. The Project Manager and task leads reviewed and approve all data adjustments, as documented in this QA summary. 2011 to Previous 2011 Inventory Comparison

The 2011 inventory including the DFW and HGB SIP areas was initially analyzed at the county level to see if there were any outliers. Table B-1 summarizes the counties with an absolute difference of 1000% percent or greater from the original 2011 inventory. Because the LTO data matched between the original 2011 data from Work Order 582-11-99776-FY12- 09, and the new inventory using AEDT and new EPA generic emission factors, ERG then looked at the data at the airport level within those counties to see where the underlying sources of the differences were. These airports are summarized in Table B-2.

B-7

Table B-1. Counties with the Highest Absolute Percent Changes in Emissions

County

2011 NOX Emissions w/AEDT +

Revised Emission

Factors (tons)

Previous 2011 NOX Emissions w/

EDMS + Previous Emission Factors

(tons)a

Percent Change (%)*

Current 2011 w/ AEDT +

Revised Emission

Factors LTO

Previous 2011 LTO w/ EDMS

+ Previous Emission Factors a

LTO Percent Change (%)

Wichita 1,759.76 20.59 8,448.63 183,745 183,745 0Victoria 212.05 2.75 7,619.11 28,709 28,709 0Aransas 183.19 3.02 5,967.93 41,181 41,181 0Culberson 1.13 0.02 5,296.46 334 334 0Reeves 33.15 0.72 4,500.71 10,101 10,101 0McCulloch 34.10 0.84 3,967.95 11,771 11,771 0Jim Wells 11.41 0.32 3,420.48 4,474 4,474 0La Salle 11.43 0.34 3,276.16 4,157 4,157 0Walker 14.35 0.49 2,822.20 6,633 6,633 0Kleberg 7.50 0.29 2,487.25 3,851 3,851 0Calhoun 8.74 0.43 1,951.45 5,449 5,449 0Howard 6.63 0.42 1,464.47 6,096 6,096 0Tom Green 301.37 19.46 1,448.91 54,373 54,373 0Matagorda 9.02 0.65 1,294.69 8,846 8,846 0* Percent change greater than 1,000% a. Previous Inventory was based on the same LTO data but used EDMS and previous EPA generic emission factors.

B-8

Table B-2. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties

County Airport

2011 NOX Emissions w/ AEDT + Revised Emission Factors (tons)

Previous 2011 NOX Emissions w/ EDMS + Previous Emission Factors (tons)a

Percent Change

(%)*

Current 2011

LTO w/ AEDT + Revised

Emission Factors

Previous 2011

LTO w/ EDMS + Previous Emission Factors a

LTO Percent

Change (%)

Wichita Sheppard AFB/Wichita Falls Muni 1,758.23 19.06 9,126.00 161,654 161,654 0

Victoria Victoria Rgnl 211.83 2.52 8,294.44 26,070 26,070 0

Matagorda Palacios Muni 8.20 0.11 7,417.74 1,480 1,480 0

Culberson Culberson County 1.13 0.02 6,095.70 250 250 0

Aransas Aransas Co 183.19 3.02 5,972.51 41,110 41,110 0

Reeves Pecos Muni 33.15 0.72 4,516.27 10,025 10,025 0

McCulloch Curtis Field 34.10 0.84 3,969.34 11,762 11,762 0

Calhoun Calhoun County 8.53 0.21 3,893.33 3,000 3,000 0

Jim Wells Alice Intl 11.39 0.31 3,612.01 4,305 4,305 0

La Salle Cotulla-La Salle County 11.42 0.33 3,342.53 3,950 3,950 0

Walker Huntsville Muni 14.33 0.47 2,932.53 6,425 6,425 0

Kleberg Kleberg County 7.48 0.27 2,638.42 3,700 3,700 0

Howard Big Spring Mc Mahon-Wrinkle 6.63 0.42 1,464.47 6,096 6,096 0

Tom Green San Angelo Rgnl/Mathis Field 301.27 19.36 1,456.45 52,983 52,983 0

* Percent change greater than 1,000% a. Previous Inventory was based on the same LTO data but used EDMS and older EPA generic emission factors.

B-9

The data from Table B-2 showed that the LTO data matched, whereas the emissions were higher in the new 2011 inventory developed using AEDT. Table B-2 also compares the new generic emission factors from the EPA to the emissions factors used in the prior inventory that was developed using the FAA’s older EDMS software and the EPA’s older generic emission factors. It is recognized by the FAA that AEDT emissions differ from EDMS emissions. Factors that contribute to these differences include the use of different fuel consumption methods (AEDT data are considered more accurate as they are based on aircraft flight recorder data). Also, AEDT uses different methods to determine aircraft weight, flap and power settings. EDMS uses more generic default values for these aircraft operating perimeters (see https://aedt.faa.gov/Documents/Comparison_AEDT_Legacy_Summary.pdf). Overall, AEDT is believed to provide more accurate emissions estimates than EDMS. Based on ERG’s analysis, the AEDT model generated results consistent with the FAA’s findings that overall emissions from the resulting model outputs are typically higher than corresponding results from EDMS when analyzing aggregate emissions estimates. Comparing the two models can be very complicated, as the two models use different methodologies to account for airport factors (e.g., runway length, relative elevation, time in mode and local meteorology) and aircraft factors (e.g., aircraft rate of climbout/descent, engine specific fuel consumption, aircraft weight, engine mode operations). Table B-3 provides a simple comparison where the emissions for a BOEING 737 200 series equipped with Pratt and Whitney 1PW011 engines are normalized on a per LTO basis.1 As Table B-3 indicates, EDMS and AEDT emission estimates can differ for different airports and pollutants. Variance in the AEDT output appears reasonable when considering the variance typically associated with the EDMS output, based on ERG’s experience working with EDMS outputs.

1 This is just one example for the 737 200 series, most aircraft models have multiple engine options, and this series

has five different low-bypass turbonfan variants as part of their JT8D product line.

B-10

Table B-3. Example Comparison for 2011 Inventory between AEDT and EDMS at the Airport, Aircraft, Engine, and Pollutant Level

Airport Airframe Engine Pollutant

Code

AEDT Emissions (Ton per

LTO)

EDMS Emissions (Tons per

LTO)

Percent Change

Dallas Love Field Boeing 737-200 Series 1PW011 CO 1.93E-02 8.32E-03 132

San Antonio Intl Boeing 737-200 Series 1PW011 CO 2.53E-02 1.50E-02 68

William P Hobby Boeing 737-200 Series 1PW011 CO 2.87E-02 1.75E-02 64George Bush Intercontinental/Houston Boeing 737-200 Series 1PW011 CO 1.41E-02 9.21E-03 53

Austin-Bergstrom Intl Boeing 737-200 Series 1PW011 CO 1.07E-02 7.23E-03 49

Dallas Love Field Boeing 737-200 Series 1PW011 NOX 2.14E-02 1.93E-02 11

Austin-Bergstrom Intl Boeing 737-200 Series 1PW011 NOX 2.24E-02 2.03E-02 10

San Antonio Intl Boeing 737-200 Series 1PW011 NOX 2.01E-02 2.05E-02 -2George Bush Intercontinental/Houston Boeing 737-200 Series 1PW011 NOX 2.02E-02 2.10E-02 -4

William P Hobby Boeing 737-200 Series 1PW011 NOX 2.15E-02 2.24E-02 -4

Dallas Love Field Boeing 737-200 Series 1PW011 PM10-PRI 1.56E-04 2.82E-04 -45

San Antonio Intl Boeing 737-200 Series 1PW011 PM10-PRI 1.86E-04 3.56E-04 -48George Bush Intercontinental/Houston Boeing 737-200 Series 1PW011 PM10-PRI 1.74E-04 4.01E-04 -57

William P Hobby Boeing 737-200 Series 1PW011 PM10-PRI 1.39E-04 3.30E-04 -58

Austin-Bergstrom Intl Boeing 737-200 Series 1PW011 PM10-PRI 1.28E-04 3.04E-04 -58

Dallas Love Field Boeing 737-200 Series 1PW011 SO2 1.71E-03 1.38E-03 24

San Antonio Intl Boeing 737-200 Series 1PW011 SO2 2.08E-03 1.78E-03 17George Bush Intercontinental/Houston Boeing 737-200 Series 1PW011 SO2 1.93E-03 2.00E-03 -4

William P Hobby Boeing 737-200 Series 1PW011 SO2 1.51E-03 1.63E-03 -7

Austin-Bergstrom Intl Boeing 737-200 Series 1PW011 SO2 1.37E-03 1.49E-03 -8

Dallas Love Field Boeing 737-200 Series 1PW011 VOC 5.38E-03 2.57E-03 109

San Antonio Intl Boeing 737-200 Series 1PW011 VOC 6.92E-03 4.26E-03 62

William P Hobby Boeing 737-200 Series 1PW011 VOC 7.80E-03 4.92E-03 58George Bush Intercontinental/Houston Boeing 737-200 Series 1PW011 VOC 4.05E-03 2.77E-03 46

Austin-Bergstrom Intl Boeing 737-200 Series 1PW011 VOC 3.19E-03 2.27E-03 41

Additionally, ERG looked at the data at the airport and SCC level, summarized in Table B-4. This table clearly showed that the large difference (14,035% increase) in emissions were from military activity. ERG concluded the change in emissions were due to the revised generic military emission factors. ERG confirmed that in all the cases the military data with high emission differences were from generic activity. The percent difference between the older emission factor and the revised emission factor for NOx is 14,035%. The smaller absolute percent changes, such as the -36% change at Austin Bergstrom International Airport, are due to the use of AEDT vs EDMS. Additional details can be found in Table B-5.

B-11

Additional checks were conducted by looking at the top 25 airports in Texas to see if there were any additional outliers of concern. The TCEQ noticed that Hondo Municipal Airport seemed to have an unusually high level of activity. The original 2011 data were based on data the airport provided in 2008 and were grown using the growth factors in the FAA’s TAF dataset. Upon further investigation it was noted that Hondo Municipal Airport had unusually high LTO values in 2011 resulting in an unusually high calculated annual growth rate that, when applied to the airport-provided 2008 data, generated unrealistic 2011 values.

ERG replaced the elevated projected 2011 data with TAF data which was more consistent with the 2008 value. The correction was made to the data file and summary tables in the final report and included in this document as well.

Table B-5 provides a revised list of the top 25 airports where the Hondo Municipal Airport data has been corrected. In this table, there are some emission differences, but these are attributed to the following:

In comparing emission trends by airport with earlier inventory years, differences were noted that were attributed to the fact that the older 2011 emissions were based on the EDMS model, while other years were based on the FAA’s new AEDT model.

No changes were made since the FAA acknowledges the AEDT model provides notably different results than the EDMS model.

B-12

Table B-4. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations

Airport SCC

2011 NOX Emissions w/ AEDT + Revised Emission Factors (tons)

Previous 2011 NOX

Emissions w/ EDMS + Previous Emission Factors (tons)a

Percent Change

(%)*

Current 2011 LTO w/ AEDT + Revised Emission

Factors **

Previous 2011

LTO w/ EDMS + Previous Emission Factorsa

LTO Percent Change

(%)

Culberson County 2275001000 1.12 0.01 14,034.95 100 100 0

Alice Intl 2275001000 11.17 0.08 14,034.95 1,000 1,000 0

Cotulla-La Salle County 2275001000 11.17 0.08 14,034.95 1,000 1,000 0

Huntsville Muni 2275001000 13.96 0.10 14,034.95 1,250 1,250 0

Curtis Field 2275001000 33.50 0.24 14,034.95 3,000 3,000 0

Big Spring Mc Mahon-Wrinkle 2275001000 6.25 0.04 14,034.95 560 560 0

Calhoun County 2275001000 8.37 0.06 14,034.95 750 750 0

San Angelo Rgnl/Mathis Field 2275001000 283.67 2.01 14,034.95 25,404 25,404 0

Palacios Muni 2275001000 8.15 0.06 14,034.95 730 730 0

Kleberg County 2275001000 7.26 0.05 14,034.95 650 650 0

Victoria Rgnl 2275001000 210.76 1.49 14,034.95 18,875 18,875 0

Pecos Muni 2275001000 32.66 0.23 14,034.95 2,925 2,925 0

Sheppard AFB/Wichita Falls Muni 2275001000 1,751.34 12.39 14,034.95 156,837 156,837 0

Aransas Co 2275001000 181.46 1.28 14,034.95 16,250 16,250 0

*High percent change due to updates to Military EF update**Military LTOs were all generic a. Previous Inventory was based on the same LTO data but used EDMS and older EPA generic emission factors.

B-13

Table B-5. Airport/SCC Combinations Within the Top 25 Airports with the Highest Activity

County Airport* SCC

2011 NOX Emissions w/

AEDT + Revised

Emission Factors (tons)

Previous 2011 NOX Emissions

w/ EDMS + Previous Emission Factors (tons)a

Percent Change (%)**

Current 2011 LTO w/ AEDT +

Revised Emission Factors

Previous 2011


LTO Percent Change

(%)

Tarrant Dallas/Fort Worth Intl 2275060012 38.74 26.76 45 21,405 21,405 0

Tarrant Dallas/Fort Worth Intl 2275020000 3,638.95 2,898.22 26 296,412 296,412 0

Tarrant Dallas/Fort Worth Intl 2275050012 12.18 6.17 97 5,427 5,427 0

Tarrant Dallas/Fort Worth Intl 2275060011 0.01 0.01 14 157 157 0

Harris George Bush Intercontinental/Houston 2275050011 0.05 0.03 43 110 110 0

Harris George Bush Intercontinental/Houston 2275001000 0.16 0.23 -30 199 199 0

Harris George Bush Intercontinental/Houston 2275020000 1,751.10 1,697.93 3 174,556 174,556 0

Harris George Bush Intercontinental/Houston 2275060012 310.77 231.41 34 81,863 81,863 0

Harris George Bush Intercontinental/Houston 2275050012 3.52 3.81 -7 2,435 2,435 0

Harris George Bush Intercontinental/Houston 2275060011 0.00 0.00 -56 71 71 0

Harris William P Hobby 2275060012 24.48 21.15 16 13,669 13,669 0

Harris William P Hobby 2275060011 0.01 0.03 -59 774 774 0

Harris William P Hobby 2275050012 15.55 17.48 -11 13,148 13,148 0

Harris William P Hobby 2275050011 0.09 0.08 18 595 595 0

Harris William P Hobby 2275020000 548.73 637.71 -14 80,192 80,192 0

Harris William P Hobby 2275001000 1.16 0.68 71 2,256 2,256 0

Travis Austin-Bergstrom Intl 2275001000 0.22 0.34 -36 220 220 0

Travis Austin-Bergstrom Intl 2275020000 397.47 415.95 -4 52,481 52,481 0

B-14


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)




Travis Austin-Bergstrom Intl 2275060012 18.78 18.71 0 20,201 20,201 0

Wichita Sheppard AFB/Wichita Falls Muni 2275060012 2.45 2.38 3 1,129 1,129 0


Wichita Sheppard AFB/Wichita Falls Muni 2275001000 1,751.34 12.39 14,035 156,837 156,837 0

Wichita Sheppard AFB/Wichita Falls Muni 2275020000 4.22 4.07 4 530 530 0


Dallas Dallas Love Field 2275060012 21.10 11.82 78 14,252 14,252 0





Dallas Dallas Love Field 2275001000 1.32 1.16 14 589 589 0

Harris Ellington Field 2275060011 0.22 0.58 -62 13,668 13,668 0


Harris Ellington Field 2275060012 22.45 18.47 22 31,284 31,284 0


B-15


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)



Bexar San Antonio Intl 2275020000 339.28 379.15 -11 39,181 39,181 0

Bexar San Antonio Intl 2275050011 0.14 0.14 2 1,264 1,264 0



Bexar San Antonio Intl 2275060012 9.56 8.98 6 10,712 10,712 0


Harris David Wayne Hooks Memorial 2275020000 0.02 0.02 0 2 2 0

Harris David Wayne Hooks Memorial 2275060012 0.70 0.70 0 1,803 1,803 0

Harris David Wayne Hooks Memorial 2275060011 0.04 0.04 0 502 502 0


Harris David Wayne Hooks Memorial 2275001000 18.36 0.13 14,035 1,644 1,644 0


Tarrant Fort Worth Alliance 2275060011 0.26 0.34 -25 17,174 17,174 0

Tarrant Fort Worth Alliance 2275020000 243.93 211.83 15 5,725 5,725 0



B-16


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)

Denton Northwest Rgnl 2275060011 1.09 1.47 -26 82,170 82,170 0

Denton Northwest Rgnl 2275060012 0.55 0.10 441 830 830 0

Bexar Stinson Muni 2275020000 0.31 0.26 18 168 168 0

Bexar Stinson Muni 2275050011 0.33 1.29 -75 14,397 14,397 0


Bexar Stinson Muni 2275060011 1.75 1.02 72 58,245 58,245 0


Denton Denton Muni 2275060012 12.14 4.12 195 19,983 19,983 0



El Paso El Paso Intl 2275020000 224.69 227.58 -1 24,283 24,283 0

El Paso El Paso Intl 2275050011 0.33 0.33 0 10,093 10,093 0

El Paso El Paso Intl 2275060012 1.05 1.18 -11 1,831 1,831 0



El Paso El Paso Intl*** 2275001000 34.00 0.25 13,776 3,046 3,046 0

Dallas Addison 2275060012 10.20 4.95 106 16,256 16,256 0

Dallas Addison 2275050012 35.17 18.86 86 13,716 13,716 0

Dallas Addison 2275060011 0.48 0.38 25 20,828 20,828 0

Brazoria Pearland Rgnl 2275060012 0.03 0.03 0 85 85 0

Brazoria Pearland Rgnl 2275060011 0.02 0.02 0 218 218 0

Brazoria Pearland Rgnl 2275050012 2.71 2.71 0 16,715 16,715 0

B-17


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)

Brazoria Pearland Rgnl 2275050011 1.40 1.40 0 42,982 42,982 0

Nueces Corpus Christi Intl 2275050012 0.47 0.47 0 2,927 2,927 0



Nueces Corpus Christi Intl 2275060012 0.38 0.37 3 723 723 0

Nueces Corpus Christi Intl 2275001000 336.94 2.38 14,035 30,174 30,174 0

Nueces Corpus Christi Intl 2275020000 27.80 35.16 -21 6,725 6,725 0

Tom Green San Angelo Rgnl/Mathis Field 2275050012 1.02 1.02 0 6,253 6,253 0

Tom Green San Angelo Rgnl/Mathis Field 2275060011 0.04 0.04 0 492 492 0


Tom Green San Angelo Rgnl/Mathis Field 2275001000 283.67 2.01 14,035 25,404 25,404 0



Brazoria Brazoria County 2275050012 5.55 5.55 0 34,263 34,263 0

Brazoria Brazoria County 2275060011 0.06 0.06 0 780 780 0


Brazoria Brazoria County 2275020000 6.43 7.05 -9 639 639 0

Brazoria Brazoria County 2275001000 18.61 0.13 14,035 1,667 1,667 0


Harris West Houston 2275060012 0.15 0.15 0 391 391 0

Harris West Houston 2275050012 2.34 2.34 0 14,434 14,434 0

Harris West Houston 2275050011 1.21 1.21 0 37,300 37,300 0

B-18


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)

Harris West Houston 2275060011 0.01 0.01 0 109 109 0

Dallas Mesquite Metro 2275050012 2.33 0.64 268 1,015 1,015 0

Dallas Mesquite Metro 2275060011 0.67 0.73 -8 41,596 41,596 0

Dallas Mesquite Metro 2275060012 5.83 1.95 198 8,117 8,117 0

Tarrant Fort Worth Meacham Intl 2275050012 32.94 15.41 114 12,131 12,131 0



Medina Hondo Muni 2275050012 2.15 73.91 -97 13,253 455,851 -97

Medina Hondo Muni 2275050011 1.11 0 100 34,248 0 100

Lubbock Lubbock Preston Smith Intl 2275020000 62.59 62.09 1 9,041 9,041 0

Lubbock Lubbock Preston Smith Intl 2275060012 3.48 3.54 -2 6,138 6,138 0

Lubbock Lubbock Preston Smith Intl 2275060011 0.07 0.07 0 948 948 0



Lubbock Lubbock Preston Smith Intl 2275001000 50.50 0.36 14,035 4,523 4,523 0

Fort Bend Sugar Land Rgnl 2275001000 4.31 0.03 14,035 386 386 0

Fort Bend Sugar Land Rgnl 2275060012 0.33 0.33 0 860 860 0

Fort Bend Sugar Land Rgnl 2275060011 0.17 0.17 0 2,211 2,211 0

B-19


County Airport* SCC


AEDT + Revised







Previous 2011


LTO Percent Change

(%)

Fort Bend Sugar Land Rgnl 2275050012 1.88 1.88 0 11,632 11,632 0

Fort Bend Sugar Land Rgnl 2275050011 0.97 0.97 0 29,911 29,911 0*Airports with total aircraft LTO's greater than 45,000 a. Previous Inventory was based on the same LTO data but used EDMS and older EPA generic emission factors.**Percent Increase greater than 1,000%, high change due to updates to Military EF update. *** There were some specific military LTOs, that's why the percent difference was a little different.

B-20

The new EPA generic military emission factors replaced the earlier factors provided in the SIP 1992 Guidance, which were based on engine test data from 1987 to 1991. The EPA’s new emission factors were derived from the International Civil Aviation Organization (ICAO) engine databank factors that were matched to U.S. military aircraft and weighted based on the current fleet composition. A comparison of the revised and previous generic military emission factors is summarized in Table B-6. (Eastern Research Group to United States Environmental Protection Agency Memorandum - Updating the Generic Military Emission Factors for the 2014 National Emission Inventory, December 15, 2015)

Table B-6. Comparison of Revised Military Criteria Emission Factors1 to the Previous Generic Military Emission Factors2 (tons/LTO)*

Pollutant 2014 NEI (1992 SIP EF)Revised Emission Factors

(2015 EDMS) Percent Difference

THC 6.17E-04 4.72E-03 665VOC 7.10E-04 5.43E-03 666TOG 7.16E-04 5.46E-03 663

NOx 7.90E-05 1.12E-02 14035CO 1.41E-02 1.30E-02 -8

SOx 7.50E-06 1.06E-03 13967

PM10-PRI 3.02E-04 6.97E-04 131*There may be rounding errors in the 1992 SIP EF and Percent Change numbers

1 Memorandum to Laurel Driver from Roger Chang and Richard Billings (ERG) Updating the Generic Military Emission Factors for the 2014 National Emission Inventory, December 18, 2015.

2 U.S. EPA, Procedures for Emission Inventory Preparation Volume IV: Mobile Sources, EPA420-R-92-009, December 1992.

The use of the latest EPA emission factors is consistent with developing inventories based on the latest data and methods currently available, and therefore no changes were made to these factors.

An additional concern was that Sheppard Airforce Base also seemed to have an unusually high level of activity. ERG first confirmed the data was correctly compiled.

However, since Sheppard is the busiest dual-use Air Force base in the U.S. it is to be expected that the base has a large number of LTOs compared to other airports in Texas (see https://www.sheppard.af.mil/News/Article-Display/Article/1412802/sheppard-has-busiest-joint-use-airfield-in-af/).

B-21

Differences of multiple orders of magnitude were noted for NOx emissions for generic military aircraft operations (including Sheppard AFB) between the 2011 and 2017 inventories, which matched the difference in the new EPA generic emission factors for military aircraft.

No change was required as the newer EPA emission factors replaced older emission factors developed in 1987.

In cases where quantitative data were developed, checks were made to ensure their accuracy. To this end ERG spot checked data and compared the calculated values to the previous 2014 trend inventories. The inventory data were also summarized for the TCEQ to evaluate independently. Data found to be questionable were examined in greater detail to determine if errors might be present and what adjustments might be needed. Where data were revised, the procedures and assumptions used were documented. The ERG Project Manager and task leads reviewed and approved all data adjustments. ERG also confirmed that all aircraft in the previous inventory were included in the input/output files used to develop the new 2011 inventory (see Table B-7). Note that the small difference in the first 8 rows of Table B-7 are due to the change in the Hondo Municipal Airport data. Hondo Municipal Airport data originally included some aircraft-specific local data. These were removed and replaced with generic data from TAF.

Table B-7. Comparison to Confirm All Aircraft Were Included in the New Inventory

Aircraft

2011 Aircraft w/ AEDT +

Revised Emission

Factors Count

Previous 2011 Aircraft w/

EDMS + Previous Emission Factors Count

Percent Change (%)

Dassault Falcon 2000 5 6 -17

Bombardier Learjet 24 7 8 -13



Cessna 560 Citation V 13 14 -7

Cessna 750 Citation X 13 14 -7

Raytheon Beechjet 400 13 14 -7

Bombardier Challenger 600 23 24 -4

Aerostar PA-60 7 7 0

Agusta A-109 2 2 0

Airbus A300B2-100 Series 2 2 0


Airbus A300C4-600 Series 1 1 0

Airbus A300F4-600 Series 4 4 0

Airbus A310-200 Series 9 9 0



B-22


Aircraft


Revised Emission

Factors Count



Percent Change (%)









Antonov 12 Cub 2 2 0

Antonov 124 Ruslan 3 3 0

ATR 42-200 3 3 0

ATR 42-300 1 1 0

ATR 72-200 13 13 0

Aviat Husky A1B 7 7 0

Ayres Turbo Thrush T-65 1 1 0

BAC 1-11 200 1 1 0

BAE 146-100 3 3 0

BAE Jetstream 31 2 2 0

Bell 206 JetRanger 9 9 0

Bell AH-1S Cobra 3 3 0

Bell UH-1 Iroquois 1 1 0

Boeing 707-300 Series 1 1 0













Boeing 737-900-ER 1 1 0


B-23


Aircraft


Revised Emission

Factors Count



Percent Change (%)





Boeing 767-200 ER 3 3 0


Boeing 767-300 ER 3 3 0


Boeing 767-400 ER 2 2 0



Boeing C-17A 2 2 0

Boeing DC-10-10 Series 5 5 0


Boeing DC-10-30ER 1 1 0

Boeing DC-3 2 2 0

Boeing DC-8 Series 50 1 1 0








Boeing F/A-18 Hornet 2 2 0

Boeing KC-135 Stratotanker 1 1 0

Boeing MD-10-1 2 2 0

Boeing MD-11 8 8 0

Boeing MD-11-ER 1 1 0

Boeing MD-81 2 2 0

Boeing MD-82 22 22 0

Boeing MD-83 6 6 0


Boeing MD-88 2 2 0

Boeing MD-90 2 2 0

Boeing Stearman PT-17 / A75N1 1 1 0

B-24


Aircraft


Revised Emission

Factors Count



Percent Change (%)

Bombardier Challenger 300 8 8 0



Bombardier CL-415 1 1 0

Bombardier CRJ-100 4 4 0




Bombardier CRJ-900-ER 1 1 0

Bombardier de Havilland Dash 8 Q400 7 7 0

Bombardier Global Express 5 5 0

Bombardier Learjet 25 12 12 0


Bombardier Learjet 35A/36A (C-21A) 2 2 0





CASA 212-100 Series 2 2 0

CASA C-101 Aviojet 1 1 0

Cessna 150 Series 13 13 0

Cessna 172 Skyhawk 80 80 0

Cessna 182 18 18 0

Cessna 206 14 14 0

Cessna 208 Caravan 20 20 0

Cessna 210 Centurion 14 14 0

Cessna 310 14 14 0

Cessna 337 Skymaster 4 4 0

Cessna 340 11 11 0

Cessna 402 8 8 0

Cessna 414 12 12 0

Cessna 421 Golden Eagle 15 15 0

Cessna 425 Conquest I 12 12 0

Cessna 441 Conquest II 12 12 0

Cessna 500 Citation I 31 31 0

Cessna 501 Citation ISP 14 14 0

B-25


Aircraft


Revised Emission

Factors Count



Percent Change (%)

Cessna 525 CitationJet 13 13 0

Cessna 550 Citation II 12 12 0

Cessna 551 Citation IISP 3 3 0

Cessna 552 T-47A 1 1 0

Cessna 560 Citation Excel 9 9 0

Cessna 560 Citation XLS 4 4 0

Cessna 650 Citation III 10 10 0

Cessna 680 Citation Sovereign 11 11 0

Cessna S550 Citation S/II 1 1 0

Cessna T-37 Tweet 1 1 0

Cirrus SR20 9 9 0

Cirrus SR22 14 14 0

Convair CV-580 9 9 0

Dassault Falcon 10 17 17 0



Dassault Falcon 2000-EX 5 5 0

Dassault Falcon 20-C 9 9 0

Dassault Falcon 20-F 1 1 0




DeHavilland DHC-2 Mk III Beaver 1 1 0

DeHavilland DHC-6-100 Twin Otter 3 3 0



DeHavilland DHC-8-100 3 3 0



Dornier 328 Jet 3 3 0

Dornier 328-100 Series 4 4 0

EADS Socata TB-20 Trinidad 4 4 0

EADS Socata TB-9 Tampico 1 1 0

EADS Socata TBM-700 11 11 0

Embraer 312 Tucano 1 1 0

Embraer EMB110 Bandeirante 4 4 0

B-26


Aircraft


Revised Emission

Factors Count



Percent Change (%)

Embraer EMB120 Brasilia 4 4 0

Embraer ERJ135 19 19 0

Embraer ERJ135-LR 1 1 0



Embraer ERJ145-EU 1 1 0


Embraer ERJ145-XR 3 3 0




Fairchild Metro IVC 1 1 0

Fairchild SA-226-T Merlin III 8 8 0

Fairchild SA-226-TC Metro II 3 3 0

Fairchild SA-227-AC Metro III 7 7 0

Fairchild SA-227-AT Expeditor 5 5 0

Fairchild SA-26-T Merlin II 4 4 0

Falcon 7X 3 3 0

Fokker F27 Friendship 1 1 0

Fokker F27-100 Series 1 1 0

Gulfstream G100 3 3 0







Gulfstream I 6 6 0

Gulfstream II 7 7 0

Gulfstream II-B 1 1 0

Gulfstream IV-SP 3 3 0

Gulfstream V-SP 7 7 0

Hawker HS-125 Series 1 2 2 0




B-27


Aircraft


Revised Emission

Factors Count



Percent Change (%)

Hughes 500D 1 1 0

Israel IAI-1124 Westwind I 9 9 0

Israel IAI-1124-A Westwind II 2 2 0

Israel IAI-1125 Astra 6 6 0

Israel IAI-1126 Galaxy 6 6 0

Lancair 360 5 5 0

Lockheed C-130 Hercules 7 7 0

Lockheed C-5 Galaxy 2 2 0

Lockheed L-1329 Jetstar I 1 1 0

Lockheed L-1329 Jetstar II 5 5 0

Lockheed Martin F-16 Fighting Falcon 4 4 0

Lockheed P-3 Orion ANP:P3A 1 1 0

Lockheed S-3 Viking 1 1 0

Maule MT-7-235 7 7 0

Mitsubishi MU-2 12 12 0

Mitsubishi MU-300 Diamond 6 6 0

Mooney M20-K 16 16 0

NAMC YS-11-100 Series 1 1 0

Partenavia P.68 Victor 1 1 0

Piaggio P.180 Avanti 10 10 0

Pilatus PC-12 13 13 0

Pilatus PC-6 Porter 1 1 0

Piper PA-23 Apache/Aztec 13 13 0

Piper PA-24 Comanche 10 10 0

Piper PA-27 Aztec 3 3 0

Piper PA-28 Cherokee Series 33 33 0

Piper PA-30 Twin Comanche 14 14 0

Piper PA-31 Navajo 12 12 0

Piper PA-31T Cheyenne 15 15 0

Piper PA-32 Cherokee Six 13 13 0

Piper PA-34 Seneca 13 13 0

Piper PA-42 Cheyenne Series 10 10 0

Piper PA46-TP Meridian 12 12 0

Rans S7S 1 1 0

Raytheon Beech 18 8 8 0

Raytheon Beech 1900-C 4 4 0

B-28


Aircraft


Revised Emission

Factors Count



Percent Change (%)

Raytheon Beech 1900-D 1 1 0

Raytheon Beech 55 Baron 40 40 0

Raytheon Beech 60 Duke 10 10 0


Raytheon Beech Baron 58 16 16 0

Raytheon Beech Bonanza 36 31 31 0

Raytheon Beech D17S Staggerwing 2 2 0

Raytheon Hawker 1000 7 7 0

Raytheon Hawker 4000 Horizon 3 3 0



Raytheon King Air 100 13 13 0


Raytheon Premier I 7 7 0

Raytheon Super King Air 200 45 45 0


Robinson R22 9 9 0

Rockwell 1121 Jet Commander 5 5 0

Rockwell 1121A Jet Commander-A 5 5 0

Rockwell Commander 500 8 8 0



Rockwell Sabreliner 40 4 4 0




Ryan Navion B 1 1 0

Saab 340-A 2 2 0

Saab 340-B 10 10 0

Shorts 330 2 2 0

Shorts 360-100 Series 3 3 0

Sikorsky S-76 Spirit 7 7 0

Sikorsky UH-60 Black Hawk 1 1 0

T-38 Talon 6 6 0

B-29

2011 Airports Compared to 2017 Airports

The airports in the 2011 inventory and the airports in the 2017 inventory were compared to identify differences in the datasets. As expected, there were changes during the 6 years, with some airports closing and some opening. The 29 airports that closed sometime between 2011 and 2017, or that did not have activity, are listed in Table B-8. These 29 airports were small and accounted for only 0.0526% of total LTOs in 2011 combined. 348 “new” airports opened during this time period or had activity in 2017 that was absent in 2011. These new airports were small, accounting for only 0.80% of total LTOs in 2017.

It should be noted that some airport codes changed between 2011 and 2017 and were in fact the same airports. These airports were not included in Tables B-8 and B-9.

These observations track with the significant increase in small aircraft facilities in the Dallas/Fort Worth area between 2011 and 2017. Many of these are very small operations, air taxis and helicopter services which have been increasing over the years.

No change was needed as the data seem to be capturing a new and growing trend. (See https://www.bizjournals.com/dallas/news/2016/11/11/air-medical-group-med-trans-corp-denton-hq.html and https://www.dallasnews.com/business/technology/2018/05/08/uber-getting-plans-ground-air-taxis-dallas-los-angeles)

Table B-8. Airports in the 2011 Inventory that were not included in the 2017 Inventory

(closed)

Airport Code

Airport 2011 LTO Percent of Total 2011

LTOs

03TA Gay Hill Farm 9 0.0002%

11TE Flying M Ranch 1 0.0000%

1TE2 Flying F Ranch 287 0.0059%

1TX4 Shoreline Ranch 109 0.0023%

2E3 Cluck Ranch 9 0.0002%

2TA0 Darmar Medical Emergency 142 0.0029%

30TX Farmer's Co-Op 84 0.0017%39XS Palo Pinto General Hospital 142 0.0029%

3E7 Pronger Bros Ranch 9 0.0002%3TS5 Purdy-Nielsen Memorial Airpark 78 0.0016%

49TE Stowers Ranch 9 0.0002%

4TE0 Lone Star Steel Company 9 0.0002%

4TX9 Medical Center Hospital 142 0.0029%

54XS Boyd Field 83 0.0017%

56TE Cardiff Brothers 9 0.0002%

B-30

Table B-8. Airports in the 2011 Inventory that were not included in the 2017 Inventory (closed)

Airport Code

Airport 2011 LTO Percent of Total 2011

LTOs

62TX Barge Ranch 9 0.0002%

65TA Flying C Ranch 56 0.0011%

79TX Ag-Air Inc 105 0.0022%

7T3 Goliad County Industrial Airpark 61 0.0013%

83R Glen Beicker Ranch 9 0.0002%

8TX7 Skyhaven 366 0.0076%

96TS Nuttall 9 0.0002%

LA50 Mobil 142 0.0029%

TA92 Rowan 142 0.0029%

TE89 Verhalen 58 0.0012%

TS46 P H 142 0.0029%

TS95 Aviasud Airpark 179 0.0037%

TX04 Spohn-Alice 142 0.0029%

XS73 Double D Ranch 9 0.0002% Total 0.0526%

B-31

Table B-9. Airports (Opened) in 2017 That Did Not Have Activity in 2011

Airport Code

Airport 2017 LTO

Percent of Total 2017

LTOs

00TA Sw Region FAA 55 0.0012%

00TE TCJC-Northeast Campus 55 0.0012%

00TS Alpine Range 167 0.0037%

01TA Thirty Matlock Office Center 55 0.0012%

01TX Mims Farm 104 0.0023%

01XA Seton Medical Center Hays 55 0.0012%

02TE Baylor Medical Center 55 0.0012%

04XS Napiers 55 0.0012%

05TS Dew Drop 116 0.0026%

06XA J & W Windy Hill 1 0.0000%

06XS Campbell Field 116 0.0026%

07TX Pecks 55 0.0012%

07XS Allen Ponderosa 55 0.0012%

08TX Cross Wind 110 0.0024%

0TA4 Erco Field 95 0.0021%

0TE2 Bell Helicopter Hurst 55 0.0012%

0TS1 Dooley 116 0.0026%

0TS2 Ultralight Intl 224 0.0049%

0TX0 Nassau Bay 228 0.0050%

0TX1 Pecan Plantation 975 0.0214%

0TX2 Heliport-Facility 5a 55 0.0012%

0TX4 Aerospatiale Helicopter Corp 55 0.0012%

0TX5 Shiloh 123 0.0027%

0TX7 Lazy K Acres 189 0.0041%

0TX8 Jacobia Field 94 0.0021%

0TX9 Card Aerodrome 94 0.0021%

0XA0 Parkland Hospital Nr 2 55 0.0012%

0XA1 Kothmann Ranch 55 0.0012%

0XA9 Methodist Mansfield Medical Center 55 0.0012%

0XS4 Eds 55 0.0012%

0XS9 French Field 93 0.0020%

10XA Sterling 106 0.0023%

11XA Briar Lakes Ranch 1 0.0000%

12T Ferris Red Oak Muni 55 0.0012%

12TS BLO 302 0.0066%

12XA Wood Farm Airfield 96 0.0021%

13XA Flying 5b Ranch 92 0.0020%

13XS Presbyterian Hospital of Rockwall 55 0.0012%

B-32


Airport Code

Airport 2017 LTO


LTOs

14XA Frog Pond 1 0.0000%

15TS Owens Country Sausage 55 0.0012%

17TA Heli-Dyne Systems Inc 55 0.0012%

17XA Hunter Field 1 0.0000%

18TX Flying 'T' Ranch 1 0.0000%

19TA Lagrone Ranch 94 0.0021%

19TS Kvue-Tv 55 0.0012%

19XA Baylor Medical Center Irving 55 0.0012%

19XS Draggintail Acres 139 0.0031%

1TS4 Eds Hangar 55 0.0012%

1TS9 Four Winds 1 0.0000%

1XS3 John Peter Smith Health Network 55 0.0012%

1XS6 Hillcrest Baptist Hospital 55 0.0012%

20TA Mag Drop 96 0.0021%

20XA St. Luke's Hospital at The Village 55 0.0012%

20XS Klutts Field 144 0.0032%

22TS Gray Steel 55 0.0012%

23TE Texas Rgnl Medical Center 55 0.0012%

24TS North Hills Hospital 55 0.0012%

24XS Furst Ranch 55 0.0012%

25TE Taylor's Air Park 104 0.0023%

26XA Solana North 55 0.0012%

27TE Sierra Providence Hospital 55 0.0012%

27TS Walden Ranch 55 0.0012%

27XA Arnett Landing 95 0.0021%

2TA2 The Medical Center of Mesquite 55 0.0012%

2TE3 Weems Farm 116 0.0026%

2TE7 Beach Ranch 98 0.0022%

2TS0 Myska Field 131 0.0029%

2TS4 Circle R Ranch 108 0.0024%

2TS6 Eagle's Nest Estates 545 0.0120%

2TS7 Jamak Fabrication 55 0.0012%

2TX8 Eagle's Landing 131 0.0029%

30XA Emergency Room at Magnolia 55 0.0012%

31XA Indian Falls Ranch 1 0.0000%

31XS Fly-N-Ski 94 0.0021%

32XS Cedar Circle 55 0.0012%

33XS Six Mile Volunteer Fire Department 55 0.0012%

B-33


Airport Code

Airport 2017 LTO


LTOs

34TA JSI 142 0.0031%

34TX Buckmaster 55 0.0012%

34XS Flying Hare 108 0.0024%

35TA Texas Health Presbyterian Hospital Plano 55 0.0012%

37TA Texas Health Presbyterian Hospital Dallas 55 0.0012%

37TS Skinner 1 0.0000%

38XA Walk-Air 106 0.0023%

3T6 Clark 252 0.0055%

3TX1 Paradise Point 144 0.0032%

3TX2 Flying S Farm 131 0.0029%

3TX3 Sitton Field 131 0.0029%

3TX6 Lowell Smith Jr 1 0.0000%

3TX7 Flying P 116 0.0026%

3TX8 Drop Field 116 0.0026%

3TX9 Rafter J 104 0.0023%

3XA0 Drennan 1 0.0000%

3XA8 Chicken Strip 118 0.0026%

3XS7 Bell Training Facility 55 0.0012%

41TS Flying T Ranch 1 0.0000%

41TX Henington 94 0.0021%

44TA Aero Crafter Inc 55 0.0012%

45XA Buelah 110 0.0024%

46XA Flying A 55 0.0012%

46XS Windy Hill 116 0.0026%

47XA Luv Field 121 0.0027%

48TE 4m Ranch Airfield 1 0.0000%

49TS E D S 55 0.0012%

49XS Mccasland Ranch 1 0.0000%

4TA1 Warschun Ranch 116 0.0026%

4TX2 Stage Coach Hills 338 0.0074%

4TX4 Birk 167 0.0037%

4TX8 Addington Field 123 0.0027%4XA7 Baylor Health Center at Irving Coppell 55 0.0012%

4XS4 Baylor Medical Center at Carrollton 55 0.0012%

51TA Harris Methodist Southwest Helistop 55 0.0012%

51TE Barstool Ranch 1 0.0000%

53TE Christus Santa Rosa Westover Hills 55 0.0012%

54TA George P Shanks 104 0.0023%

B-34


Airport Code

Airport 2017 LTO


LTOs

55TE Lebegue LSA Landing 171 0.0037%

56TA Dallas/Fort Worth Medical Center 55 0.0012%

57TA Trinity Meadows Race Track 55 0.0012%

58TX Tailspin Estates 124 0.0027%

59TX Benjamin Franklin 111 0.0024%

59XA Texas Farms and Ranches 55 0.0012%

5TS0 Shoreline Hospital 55 0.0012%

5TX0 Hidden Valley Airpark 565 0.0124%

5TX4 Black Mark Strip 1 0.0000%

5TX5 PSF 55 0.0012%

5TX6 Hilliard Landing Area 1 0.0000%

5XA0 Hunter's Creek 95 0.0021%

5XA6 Comanche Ridge Ranch 1 0.0000%

5XA9 Venable Airpark 1 0.0000%

60TA Air Ranch Estates 1 0.0000%

60TS Presbyterian Hospital of Commerce 55 0.0012%

61TE Kezer Air Ranch 266 0.0058%

65TE Windwood Farm 103 0.0023%

66TE The Landings 171 0.0038%

66XS Baylie 121 0.0027%

68TS Bishop Field 116 0.0025%

69XA Richey Airfield 100 0.0022%

6TA3 Culp 95 0.0021%

6TA8 Bell Helicopters Auxiliary 55 0.0012%

6TS2 Dauenhauer Field 115 0.0025%

6TS5 Eds Administration Nr 1 55 0.0012%

6TS9 MCP 55 0.0012%

6TX1 Action 5 55 0.0012%

6TX5 Baptist St Anthony's Hospital 55 0.0012%

6TX7 Flying L Airpark 104 0.0023%

6TX8 Hess 167 0.0037%

6XA0 Circle Ranch 92 0.0020%

6XA4 Zadow Air 107 0.0023%

6XS2 Luscombe Acres 161 0.0035%

6XS3 Mullins Landing 149 0.0033%

70TS Memorial Hermann Katy Hospital 55 0.0012%

73TE Moore Pvt 95 0.0021%

73TS Fire Department Training Center 55 0.0012%

B-35


Airport Code

Airport 2017 LTO


LTOs

75TS Venus 125 0.0027%

76TX Spanish Oaks 1 0.0000%

76XA High Lonesome 1 0.0000%

77TA Blue Skies 95 0.0021%78TX Baylor University Medical Center Grapevine 55 0.0012%

79TS Tallows Field 121 0.0027%

7TS1 Cowden 55 0.0012%

7TS4 Roma 1 0.0000%

7TX3 Big Town 55 0.0012%

7TX4 Hillcrest 302 0.0066%

7XA0 West Texas VA Medical Center 55 0.0012%

7XS1 Flying E Ranch 95 0.0021%

80TE Opela 55 0.0012%

81XA River Falls 181 0.0040%

84TE W4 Ranch 92 0.0020%

84XS Lang Ranch 93 0.0020%

85TS Aerospatiale Helicopter Corp 55 0.0012%

85XA Windmillcreek 1 0.0000%

88TS Fort Wolters Helicopters 55 0.0012%

8TA5 Short Stop 128 0.0028%

8TA7 Stark Field 95 0.0021%

8TS1 Retta 97 0.0021%

8TS5 Stol Field 97 0.0021%

8TX1 Medical Emergency GBC 55 0.0012%

8TX6 Harper 1 0.0000%

8TX9 North Texas Medical Center 55 0.0012%

8XA7 Yacht Club 120 0.0026%

8XS2 Ayers Field 98 0.0022%

90TA Faulkner Point 55 0.0012%

91XA Crosscut Field 107 0.0023%

93TX John Peter Smith Ems Building 55 0.0012%

94TE Barbaro North 55 0.0012%

94TS Mc David Honda 55 0.0012%

95TE Star 55 0.0012%

97XS Tilghman 103 0.0023%

98TA Weatherford Rgnl Medical Center 55 0.0012%

99TA Peacock Willow Creek 55 0.0012%

99XS Sam Little Intl 95 0.0021%

B-36


Airport Code

Airport 2017 LTO


LTOs

9F5 TCJC-South Campus 55 0.0012%

9TA4 Placid 55 0.0012%

9TA5 Charlton-Careflite 55 0.0012%

9TE0 Twin Acres 95 0.0021%

9TS4 Ladue Ranch 55 0.0012%

9TS6 Goodlett Field 97 0.0021%

9TS8 Dallas Rehabilitation Institute 55 0.0012%

9TS9 Toyota Of Dallas Inc 55 0.0012%

9TX2 Bennetts 109 0.0024%

9TX8 Infomart 55 0.0012%

9XA4 Leger 97 0.0021%

9XS7 Reeder 91 0.0020%

E34 Smiley Johnson Muni/Bass Field 920 0.0202%

T14 Taylor 123 0.0027%

T25 Aero Estates 165 0.0036%

T33 Rives Air Park 1 0.0000%

T34 Talon Air 55 0.0012%

T37 Goldthwaite Muni 1 0.0000%

T69 Alfred C 'Bubba' Thomas 5,122 0.1124%

TA01 Phillips Farm 104 0.0023%

TA08 Flying M 144 0.0032%

TA11 TSA 1,601 0.0351%

TA16 Travis Field 91 0.0020%

TA18 Sunset 102 0.0022%

TA21 Windmill Hill 1 0.0000%

TA25 Cook Canyon Ranch 1 0.0000%

TA26 Coyote Crossing 97 0.0021%

TA37 Belo Broadcasting 55 0.0012%

TA40 Dallas City Hall 55 0.0012%

TA46 Baum 95 0.0021%

TA47 Richards 195 0.0043%

TA48 Hawk Nest 55 0.0012%

TA51 Eagle 103 0.0023%

TA54 Clear Fork Ranch 55 0.0012%

TA60 Hurn 111 0.0024%

TA69 Lupton Farms 55 0.0012%

TA71 Terrell Community Hospital 55 0.0012%

TA77 Cottonpatch Aerodrome 123 0.0027%

B-37


Airport Code

Airport 2017 LTO


LTOs

TA83 Short Field 1 0.0000%

TA88 Premier Aviation Inc 55 0.0012%

TA94 Creech 55 0.0012%

TA99 Bell Helicopter Plant-3 55 0.0012%

TE02 Aresti Aerodrome 104 0.0023%

TE05 Mx Ranch 55 0.0012%

TE16 Cow Pasture 97 0.0021%

TE20 Putman 55 0.0012%

TE22 Texas Scottish Rite Hospital for Children 55 0.0012%

TE24 Horseshoe Lake 1 0.0000%

TE30 Harris Hospital 55 0.0012%

TE31 Mc David Pontiac Company 55 0.0012%

TE34 Reb Folbre's Place 138 0.0030%

TE43 Parkland Health & Hospital System 55 0.0012%

TE45 Buffalo Chips Airpark 289 0.0063%

TE50 Hirok 104 0.0023%

TE52 Chigger Field 93 0.0020%

TE56 11 Tv Dallas 55 0.0012%

TE59 Holler 55 0.0012%

TE65 NRH Fire Department 55 0.0012%

TE66 LMC 55 0.0012%

TE72 Haven Field 97 0.0021%

TE79 HIG 55 0.0012%

TE80 Medical Center Arlington 55 0.0012%

TE81 Smither Field 116 0.0026%

TE82 5-State 55 0.0012%

TE93 Staggs 55 0.0012%

TS00 Fuller 160 0.0035%

TS06 Medical City Dallas Hospital 55 0.0012%

TS11 Glenmar 108 0.0024%

TS28 Northeast Community Hospital 55 0.0012%

TS40 Celina Field 93 0.0020%

TS47 Rock Creek Ranch 1 0.0000%

TS56 Ktvt Channel 11 55 0.0012%

TS58 Denton Rgnl Medical Ctr - Flow Campus 55 0.0012%

TS60 Superturf 55 0.0012%

TS63 Square Air 142 0.0031%

TS64 Kimi 55 0.0012%

B-38


Airport Code

Airport 2017 LTO


LTOs

TS70 Jack Miller 167 0.0037%

TS71 Flying B Ranch 97 0.0021%

TS72 ETMC - Gun Barrel City 55 0.0012%

TS73 Stubbs Strip 160 0.0035%

TS74 Glass 123 0.0027%

TS89 Parker 93 0.0020%

TS98 Wings Over Texas 1 0.0000%

TX06 Carrington 55 0.0012%

TX08 The Ballpark in Arlington 55 0.0012%

TX15 Beggs Ranch/Aledo/ 1 0.0000%

TX16 Log Cabin 95 0.0021%

TX17 ETMC - Athens 55 0.0012%

TX18 Redmond Taylor AHP 55 0.0012%

TX22 Leroux 116 0.0026%

TX29 Flying O 118 0.0026%

TX30 H E B Hospital 55 0.0012%

TX32 Bar V K 1 0.0000%

TX33 Haire 116 0.0026%

TX34 Windy Tales 103 0.0023%

TX40 Echo Lake 151 0.0033%

TX46 Blackwood Airpark 132 0.0029%

TX50 Denton Community Hospital 55 0.0012%

TX53 Police H Port-Redbird 55 0.0012%

TX55 Southland Center 55 0.0012%

TX58 Southwest Custom Aircraft 55 0.0012%

TX59 Eds Administration Nr 2 55 0.0012%

TX60 T I Company 55 0.0012%

TX65 Beechwood 55 0.0012%

TX67 Embry Ranch 97 0.0021%

TX71 JMK Intl Inc 55 0.0012%

TX74 Thomas Flying Field 97 0.0021%

TX76 BMCG 55 0.0012%

TX77 Mallick Tower 55 0.0012%

TX78 Block Ranch 104 0.0023%

TX80 Eds Superdrome 55 0.0012%

TX83 Water Department 55 0.0012%

TX84 GMF Ranch 55 0.0012%

TX85 City of Fort Worth 55 0.0012%

B-39


Airport Code

Airport 2017 LTO


LTOs

TX89 Ganze Ranch Airstrip 181 0.0040%

TX90 Flight Safety Texas 55 0.0012%

TX91 Madeira Airpark 1 0.0000%

TX95 Coppenger Farm 97 0.0021%

TX96 Maxwell Field 123 0.0027%

TX98 Hawkins Private 97 0.0021%

XA0 Prose Field 123 0.0027%

XA10 Ponderosa Field 116 0.0026%

XA11 Lake Pointe Medical Center 55 0.0012%

XA18 Baylor All Saints Medical Center 55 0.0012%

XA21 Las Colinas Medical Center 55 0.0012%

XA33 Thorny Woods 101 0.0022%

XA36 Cook Children's Medical Center 55 0.0012%

XA37 Plaza Medical Center 55 0.0012%

XA42 Connies Aviation 109 0.0024%

XA45 Weedfalls 101 0.0022%

XA53 Presbyterian Hospital of Allen 55 0.0012%

XA56 Hunt Rgnl Medical Center 55 0.0012%

XA59 Medical Center of Lewisville 55 0.0012%

XA61 Baylor University Medical Center Dallas 55 0.0012%

XA62 Methodist Dallas Medical Center 55 0.0012%

XA63 AAF 55 0.0012%

XA68 Akroville 131 0.0029%

XA69 Shelton Pvt 55 0.0012%

XA72 Stocker 116 0.0026%

XA75 Double A 111 0.0024%

XA79 Baylor Rgnl Medical Center at Plano 55 0.0012%

XA83 South Padre Island 55 0.0012%

XA86 Driftwood Ranch 124 0.0027%

XA87 Coon Creek Club 55 0.0012%

XA91 Wildwood 106 0.0023%

XS02 Tarrant County Water Control 55 0.0012%

XS06 Flying B Ranch 1 0.0000%

XS14 Weese Intl 1 0.0000%

XS19 Cedar Park Rgnl Medical Center 55 0.0012%

XS34 Skylark 97 0.0021%

XS54 Arlington Marriott Hotel 55 0.0012%

XS60 Mustang Community Airfield 116 0.0026%

B-40


Airport Code

Airport 2017 LTO


LTOs

XS62 The 88 1 0.0000%

XS78 Santiago Cattle Company 91 0.0020%

XS80 Scout 1 0.0000%

XS91 Pickle Plantation 94 0.0021%

XS96 Hillwood 55 0.0012%

XS97 Methodist Charlton Medical Center 55 0.0012%

Total 0.8044%

B-41

2017 and 2020 to Previous 2017 and 2020 Comparison

ERG performed data checks comparing the 2017 and 2020 inventories, similar to the checks comparing the 2011 inventory using AEDT and revised generic emission factors, and the 2011 inventory using EDMS and the previous generic emission factors. Table B-10 summarizes the counties with an absolute difference of 1000% percent or greater, comparing the new 2017 inventory created using AEDT and EPA’s revised generic emission factors (from the 2017 trend inventory based on 2014 activity data) with that based on the prior EDMS model and the EPA’s older emission factors. Similar to 2011, there were some emissions with large differences. ERG then evaluated the data at the airport level within those counties to identify where the underlying issues were. These airports are summarized in Table B-11. For 2017 some of these differences were clearly caused by the differences in LTO data.

Since the 2017 trend inventory was based on 2014 data projected to 2017 instead of actual 2017 data, the LTO and projection data used in these different approaches appeared to be correct and were correctly applied, therefore no changes were required based on this QA check.

The data from Table B-11 showed that the LTO data matched although the emissions were significantly higher in the new 2017 inventory, as expected due to the differences in models and emission factors.

Therefore, no changes were required based on this QA check. In reviewing the data, ERG first confirmed the LTO values were correct, noting that the LTOs only increased from 4,305 to 13,300, a difference of only about 9,000 LTOs. In other cases, the emission differences were entirely due to LTO changes between 2014 and 2017 (for example see John R Armstrong Airport). If there was a large LTO change, ERG went back to the original data to ensure there were no transcription errors. ERG then checked with airports having significant changes in LTOs, verifying that the original source data was consistent with those changes.

For these reasons no changes were required based on this QA check. ERG then reviewed the data at the airport and SCC level, summarized in Table B-12. ERG confirmed the changes in emissions were due to generic military activity and the revised generic military emission factors. ERG also confirmed that in all the cases the military data with high emission differences were due to generic activity.

Therefore, no changes were required based on this QA check. Some of the variance in activity identified when comparing the 2014 and the 2017 inventories can also be attributed to the repeal of the Wright Amendment in October 2014. This amendment limited airport destinations in the Dallas/Fort Worth area (e.g., Love Field and Meacham Airports). Once the amendment was repealed, activity at Love Field and Mecham increased while activity decreased at Dallas/Fort Worth. Also, there was a decline in activity at smaller airports outside the Dallas/Fort Worth area (e.g., El Paso, Austin and Houston) where flights were being directed to when the amendment was enforced. These airports were no longer needed as a hub prior to leaving the state once the amendment was repealed.

B-42

Additionally, it was noted that for some airports the total LTOs were similar between years but shifted between SCCs. These can be seen in Table B-13. This is not unusual as specific aircraft can be used in general aviation, air taxis or commercial operations; for example, a Cessna Citation M2 may be privately owned as a general aviation aircraft or it may be owned by a business providing air taxi services, and if these services are regularly scheduled it may be considered a small commercial aircraft. It is often up to the airport to make these subjective determinations about which category the aircraft falls into as they are more likely to know how the aircraft is being used. The subjective aspect of assigning SCCs would explain why the LTOs can remain relatively consistent while the SCC assignments can vary. For aircraft specific data where the EPA updated their SCC assignments, ERG included these recent EPA changes in these inventories, which also accounted for some of the identified differences.

For these reasons, no changes were required based on this QA check. The aircraft counts in the AEDT input and output files were also compared to confirm that all aircraft were successfully imported into AEDT, as summarized in Table B-14.

No changes were required based on this QA check.

Table B-10. Counties with The Highest Absolute Percent Changes in Emissions

County

2017 NOx Emissions (tons) w/ AEDT + Revised

Emission Factors from

the 2017 Inventory

Effort

2017 NOx

Emissions (tons) w/ EDMS + Previous Emission

Factors from Trends

Analysisa

Emissions Percent Change

(%)*

2017 LTO w/ AEDT + Revised


the 2017 Inventory

Effort

2017 LTO w/ EDMS + Previous Emission

Factors from Trends

Analysisa

LTO Percent Change

(%)

Jim Wells 111.89 0.31 36,332 13,303 4,308 209

Karnes 19.23 0.08 22,751 3,083 1,289 139

Victoria 264.02 2.38 11,009 32,018 30,422 5

Culberson 1.13 0.02 5,106 413 360 15

Wichita 553.26 10.90 4,974 80,887 75,066 8

Aransas 129.28 3.02 4,181 24,100 41,207 -42

Reeves 36.75 0.96 3,746 11,913 10,864 10

Angelina 23.86 0.66 3,540 29,500 9,541 209

Walker 24.16 0.80 2,934 14,956 10,846 38

Calhoun 8.77 0.36 2,359 6,375 5,004 27

Atascosa 6.35 0.26 2,358 4,882 3,375 45

La Salle 12.87 0.53 2,328 5,818 6,346 -8

Guadalupe 35.37 1.80 1,866 32,750 24,880 32

Matagorda 9.11 0.59 1,440 10,546 8,411 25

Howard 7.03 0.46 1,414 11,815 6,649 78

Coryell 2.18 0.16 1,294 7,609 2,351 224

B-43

Table B-10. Counties with The Highest Absolute Percent Changes in Emissions

County

2017 NOx Emissions (tons) w/ AEDT + Revised


the 2017 Inventory

Effort

2017 NOx

Emissions (tons) w/ EDMS + Previous Emission

Factors from Trends

Analysisa


(%)*



the 2017 Inventory

Effort


Factors from Trends

Analysisa

LTO Percent Change

(%)

Nueces 380.64 30.55 1,146 58,159 39,755 46

McLennan 142.09 12.05 1,079 98,449 67,109 47* Percent change greater than 1,000% a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission.

B-44

Table B-11. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties

County Airport

2017 NOX Emissions

(tons) w/ AEDT + Revised Emission

Factors from the 2017

Inventory Effort

2017 NOX Emissions (tons) w/ EDMS + Previous Emission

Factors from Trends

Analysisa

Emissions Absolute Percent Change

(%)*

2017 LTO w/ AEDT +

Revised Emission Factors from the

2017 Inventory

Effort


Factors from Trends

Analysisa

LTO Percent

Change (%)

Nueces John R. Armstrong Memorial Field 0.02 0.000033 55,225 267 1 26,098

Jim Wells Alice Intl 111.89 0.31 36,343 13,300 4,305 209

Karnes Karnes County 19.22 0.07 26,580 2,836 1,050 170

Victoria Victoria Rgnl 263.49 2.19 11,934 29,208 28,136 4

Matagorda Palacios Muni 8.34 0.11 7,549 3,530 1,480 139

Culberson Culberson County 1.13 0.02 6,108 300 250 20

Wichita Sheppard AFB/Wichita Falls Muni 545.62 9.36 5,731 51,526 52,931 -3

Aransas Aransas Co 129.27 3.02 4,185 24,000 41,110 -42

McLennan Tstc Waco 84.01 2.05 3,995 49,256 28,878 71

Calhoun Calhoun County 8.62 0.22 3,883 4,350 3,041 43

Reeves Pecos Muni 36.74 0.95 3,759 11,800 10,755 10

Angelina Angelina County 23.84 0.64 3,642 29,200 9,250 216

Walker Huntsville Muni 24.15 0.79 2,967 14,807 10,701 38

Atascosa Pleasanton Muni 6.34 0.25 2,474 4,640 3,140 48

La Salle Cotulla-La Salle County 12.86 0.52 2,367 5,539 6,075 -9

Guadalupe New Braunfels Muni 35.03 1.47 2,277 27,149 19,459 40

Howard Big Spring Mc Mahon-Wrinkle 7.02 0.46 1,432 11,760 6,596 78

Coryell Gatesville Muni 2.17 0.14 1,406 7,350 2,100 250

Nueces Corpus Christi Intl 379.97 29.89 1,171 48,506 30,259 60 * Percent change greater than 1,000% a. Trend Analysis was based on the 2014 baseline inventory using EDMS and previous EPA generic emission factors.

B-45

Table B-12. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations

County Airport SCC**

2017 NOX Emissions (tons) w/ AEDT + Revised

Emission Factors from the

2017 Inventory

Effort

2017 NOX Emissions (tons) w/ EDMS + Previous Emission Factors

from Trends

Analysisa


(%)*

2017 LTO w/ AEDT + Revised Emission Factors from the

2017 Inventory

Effort

2017 LTO w/ EDMS + Previous Emission Factors

from Trends

Analysisa

LTO Percent Change (%)

Jim Wells Alice Intl 2275001000 111.67 0.08 141,250 10,000 1,000 900

Angelina Angelina County 2275001000 21.27 0.02 107,571 1,904 250 662

Guadalupe New Braunfels Muni 2275001000 33.24 0.09 34,974 2,977 1,200 148


McLennan Tstc Waco 2275001000 81.10 0.42 19,212 7,263 5,316 37

Nueces John R. Armstrong Memorial Field 2275050011 0.01 0.00 18,781 192 1 18,781

Victoria Victoria Rgnl 2275001000 262.95 1.67 15,625 23,548 21,166 11

Reeves Pecos Muni 2275001000 35.93 0.23 15,448 3,218 2,925 10

La Salle Cotulla-La Salle County 2275001000 12.28 0.08 15,448 1,100 1,000 10

Atascosa Pleasanton Muni 2275001000 6.03 0.04 14,035 540 540 0

Calhoun Calhoun County 2275001000 8.37 0.06 14,035 750 750 0

Howard Big Spring Mc Mahon-Wrinkle 2275001000 6.25 0.04 14,035 560 560 0

Matagorda Palacios Muni 2275001000 8.15 0.06 14,035 730 730 0

Culberson Culberson County 2275001000 1.12 0.01 14,035 100 100 0

Wichita Sheppard AFB/Wichita Falls Muni 2275001000 545.44 3.86 14,035 48,846 48,846 0

Walker Huntsville Muni 2275001000 23.24 0.16 14,032 2,082 2,082 0

Aransas Aransas Co 2275001000 128.42 1.28 9,903 11,500 16,250 -29

* High percent change due to updates to Military EF update**Military LTOs were all generic a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission factors

B-46

Table B-13. Airport/SCC Combinations Within the Top 25 Airports the Highest Activity

County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa

Emissions Percent Change (%)**


2017 Inventory

Effort

2017 LTO w/ EDMS +

Previous Emission Factors

from 2014 Trends

Analysisa

LTO Percent Change

(%)

Tarrant Dallas/Fort Worth Intl 2275050012 6.26 0.92 583 8,482 795 967

Tarrant Dallas/Fort Worth Intl 2275020000 4,491.64 3,577.72 26 287,772 354,184 -19

Tarrant Dallas/Fort Worth Intl 2275060012 155.69 2.04 7,521 30,897 8,206 277

Harris George Bush Intercontinental/Houston 2275050012 0.40 2.39 -83 1,778 2,502 -29

Harris George Bush Intercontinental/Houston 2275020000 2,010.35 1,485.23 35 165,570 206,746 -20

Harris George Bush Intercontinental/Houston 2275060011 0.90 0.02 5,189 11,434 1,063 976

Harris George Bush Intercontinental/Houston 2275060012 200.19 188.07 6 88,193 90,915 -3

Harris George Bush Intercontinental/Houston 2275050011 0.14 0.01 1,464 4,238 502 744

Harris George Bush Intercontinental/Houston 2275001000 2.59 0.71 266 236 847 -72

Dallas Dallas Love Field 2275060011 0.24 1.07 -77 3,079 6,115 -50


Dallas Dallas Love Field 2275050011 0.69 0.12 488 21,293 1,295 1,545



Dallas Dallas Love Field 2275001000 6.06 0.97 526 543 2,172 -75

Harris William P Hobby 2275001000 5.45 0.11 4,967 489 1,575 -69

Harris William P Hobby 2275020000 505.28 529.75 -5 59,171 84,375 -30

Harris William P Hobby 2275050011 0.68 0.05 1,296 20,954 694 2,921

B-47


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)

Harris William P Hobby 2275060011 0.22 0.01 2,091 2,770 901 207



Travis Austin-Bergstrom Intl 2275060011 0.00 0.55 -100 2 7,457 -100

Travis Austin-Bergstrom Intl 2275001000 0.08 0.08 -7 90 68 32

Travis Austin-Bergstrom Intl 2275020000 648.50 745.94 -13 63,306 85,937 -26


Travis Austin-Bergstrom Intl 2275060012 1.36 9.76 -86 597 13,203 -95


Denton Northwest Rgnl 2275050011 2.90 2.80 3 89,146 86,262 3

Denton Northwest Rgnl 2275060011 0.01 0.01 -41 73 123 -41

Denton Northwest Rgnl 2275050012 0.09 0.09 3 572 553 3

Denton Northwest Rgnl 2275060012 0.10 0.17 -40 260 436 -40




Tarrant Fort Worth Meacham Intl*** 2275001000 7.96 0.03 30,451 713 330 116


Tarrant Fort Worth Meacham Intl 2275020000 0.93 0.27 239 96 30 223

Bexar San Antonio Intl 2275050012 1.12 10.22 -89 6,516 10,748 -39

B-48


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)

Bexar San Antonio Intl 2275020000 570.76 531.01 7 44,689 52,295 -15



Bexar San Antonio Intl 2275050011 0.55 0.07 667 16,822 1,214 1,285

Bexar San Antonio Intl 2275001000 26.96 1.07 2,423 2,416 665 263

Collin Collin County Rgnl At Mc Kinney 2275060012 0.48 0.23 106 1,227 595 106

Collin Collin County Rgnl At Mc Kinney 2275050011 1.56 0.34 353 47,973 10,586 353

Collin Collin County Rgnl At Mc Kinney*** 2275001000 0.25 0.00 19,567 23 16 39

Collin Collin County Rgnl At Mc Kinney 2275050012 3.00 6.15 -51 18,564 37,974 -51

Collin Collin County Rgnl At Mc Kinney 2275060011 0.03 0.01 106 342 166 106

Potter Rick Husb+ Amarillo Intl 2275050012 1.10 0.47 131 6,617 2,926 126





Potter Rick Husb+ Amarillo Intl*** 2275001000 275.54 0.88 31,220 24,675 11,136 122

Denton Denton Muni*** 2275001000 1.17 0.01 12,271 105 120 -12

Denton Denton Muni 2275060011 0.02 0.02 -2 215 219 -2

Denton Denton Muni 2275050012 2.83 10.16 -72 17,490 62,746 -72


B-49


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)



Tarrant Fort Worth Alliance 2275050012 2.02 2.04 -1 12,210 12,596 -3

Tarrant Fort Worth Alliance*** 2275001000 68.88 0.68 10,073 6,169 8,571 -28




Harris David Wayne Hooks Memorial 2275020000 0.02 0.02 -2 2 2 -2

Harris David Wayne Hooks Memorial 2275050012 2.46 3.73 -34 14,647 23,073 -37


Harris David Wayne Hooks Memorial 2275001000 8.19 0.11 7,581 734 1,350 -46


Harris David Wayne Hooks Memorial 2275060011 0.03 0.04 -22 399 510 -22

El Paso El Paso Intl 2275050011 0.40 0.50 -20 12,173 15,284 -20




El Paso El Paso Intl*** 2275001000 117.10 0.30 39,025 10,487 3,730 181

El Paso El Paso Intl 2275060012 8.70 3.25 168 7,339 8,459 -13


B-50


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)


Wichita Sheppard AFB/Wichita Falls Muni 2275020000 0.34 5.32 -94 30 1,405 -98


Harris West Houston 2275060012 0.15 0.16 -4 391 408 -4

Harris West Houston 2275050012 2.34 2.47 -6 14,434 15,278 -6

Harris West Houston 2275060011 0.01 0.01 -4 109 114 -4

Harris West Houston 2275050011 1.21 1.28 -6 37,301 39,483 -6

Williamson Georgetown Muni 2275060012 0.14 0.09 66 365 220 66

Williamson Georgetown Muni 2275060011 0.01 0.00 65 102 62 65

Williamson Georgetown Muni 2275050011 1.21 0.27 354 37,131 8,174 354

Williamson Georgetown Muni 2275050012 2.33 4.75 -51 14,368 29,322 -51

Williamson Georgetown Muni 2275001000 2.57 0.01 34,981 231 93 148

Bexar Stinson Muni 2275001000 47.97 0.40 11,834 4,296 5,088 -16

Bexar Stinson Muni 2275020000 0.02 0.01 97 2 1 97

Bexar Stinson Muni 2275060011 0.03 0.03 -15 371 436 -15

Bexar Stinson Muni 2275060012 0.52 0.61 -15 1,330 1,564 -15



Dallas Addison 2275060012 1.09 1.35 -19 2,805 3,480 -19

Dallas Addison 2275001000 1.80 0.01 12,312 161 183 -12

B-51


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)

Dallas Addison 2275060011 0.06 0.08 -19 782 970 -19

Dallas Addison 2275050012 2.09 1.97 6 12,824 12,199 5

Dallas Addison 2275020000 0.49 1.12 -56 51 112 -54

Dallas Addison 2275050011 1.08 1.02 5 33,139 31,525 5

McLennan TSTC Waco 2275060012 0.01 0.01 16 21 18 16



McLennan TSTC Waco 2275050011 0.98 0.55 78 30,256 16,971 78

McLennan TSTC Waco 2275001000 81.10 0.42 19,212 7,263 5,316 37

McLennan TSTC Waco 2275050012 1.90 1.06 78 11,708 6,567 78


Nueces Corpus Christi Intl 2275050012 0.40 0.84 -52 2,491 5,160 -52

Nueces Corpus Christi Intl 2275020000 16.38 26.36 -38 2,930 4,732 -38


Nueces Corpus Christi Intl 2275060011 0.06 0.08 -22 809 1,040 -22




Webb Laredo Intl 2275020000 60.13 43.76 37 2,886 5,992 -52

Webb Laredo Intl**** 2275001000 201.74 0.22 91,435 18,070 2,519 617

B-52


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)

Webb Laredo Intl 2275050011 0.48 0.02 2,346 14,622 598 2,346

Webb Laredo Intl 2275050012 1.06 0.36 198 5,658 2,153 163

Webb Laredo Intl 2275060011 0.08 0.01 1,004 1,004 92 995

Webb Laredo Intl 2275060012 8.52 0.13 6,561 5,544 333 1,567

Harris Ellington Field 2275001000 137.16 9.15 1,398 12,283 13,567 -9

Harris Ellington Field 2275060012 1.30 7.11 -82 3,330 16,546 -80

Harris Ellington Field 2275020000 9.40 19.84 -53 997 7,582 -87

Harris Ellington Field 2275060011 0.07 0.08 -9 928 7,268 -87

Harris Ellington Field 2275050011 0.68 0.05 1,210 20,809 2,357 783


Tarrant Gr+ Prairie Muni*** 2275001000 21.22 0.24 8,658 1,900 3,066 -38

Tarrant Gr+ Prairie Muni 2275060012 0.03 0.01 106 73 35 106

Tarrant Gr+ Prairie Muni 2275050011 1.02 0.74 38 31,401 22,820 38

B-53


County Airport* SCC



2017 Inventory

Effort


from 2014 Trends

Analysisa



2017 Inventory

Effort

2017 LTO w/ EDMS +


from 2014 Trends

Analysisa

LTO Percent Change

(%)

Tarrant Gr+ Prairie Muni 2275050012 1.97 1.43 38 12,151 8,831 38

Tarrant Gr+ Prairie Muni 2275060011 0.00 0.00 101 20 10 101

Total 11,871.77 8,137.52 46 2,063,504 2,040,522 1

*Airports with total aircraft LTO's greater than 45,000** High percent change due to updates to Military EF update***Military LTOs were all ****There were some specific differences, but the majority were generic military LTOs. a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission factors

B-54

Table B-14. Comparison to Confirm All Aircraft Were Included in AEDT Run

Aircraft AEDT Input

Count of Aircraft

AEDT Output Count of Aircraft

Percent Change (%)


Agusta A-109 2 2 0

Air Tractor 802 1 1 0

Air Tractor AT-502 1 1 0

Air Tractor AT-502B 1 1 0














Airbus A330-200 Series Freighter 1 1 0




Airbus A350-900 series 1 1 0

Airbus A380-800 Series/Trent 970 2 2 0



Antonov AN28 Cash 1 1 0

ATR 42-200 4 4 0

ATR 42-320 1 1 0

ATR 72-200 4 4 0


Ayres S2R-T34 Turbo-Thrush 1 1 0



BAE Jetstream 32-EP 1 1 0



Bell 407 / Rolls-Royce 250-C47B 2 2 0

B-55


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)








Boeing 737-300 Series Freighter 1 1 0







Boeing 737-800 with winglets 1 1 0


Boeing 737-900-ER 6 6 0




Boeing 747-800 Freighter 3 3 0




Boeing 767-200 ER 10 10 0


Boeing 767-300 ER 12 12 0

Boeing 767-300 ER Freighter 1 1 0

Boeing 767-400 ER 4 4 0


Boeing 777-200-LR 2 2 0

Boeing 777-300 ER 2 2 0


Boeing 787-900 Dreamliner 5 5 0




Boeing DC-6 1 1 0

B-56


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Boeing MD-11 5 5 0



Boeing MD-83 1 1 0

Boeing MD-88 3 3 0

Boeing MD-90 6 6 0


















CASA 295 1 1 0

CASA CN-235-100 1 1 0



Cessna 182 3 3 0

Cessna 206 2 2 0



Cessna 310 2 2 0


B-57


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)

Cessna 340 2 2 0

Cessna 402 1 1 0

Cessna 414 3 3 0







Cessna 525A CitationJet 1 1 0

Cessna 525B CitationJet 1 1 0

Cessna 525C CitationJet 1 1 0



Cessna 560 Citation V 1 1 0




Cessna 750 Citation X 4 4 0

Cirrus SR20 2 2 0

Cirrus SR22 3 3 0











DeHavilland DHC-3 Otter 1 1 0




EADS Socata TB-10 Tobago 1 1 0



B-58


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)

Eclipse 500 / PW610F 2 2 0

Embraer 500 3 3 0

Embraer 505 2 2 0



Embraer ERJ135 Legacy Business 1 1 0

Embraer ERJ135-ER 1 1 0
















Falcon 7X 5 5 0

Grumman A-6 Intruder 1 1 0

Grumman G-21G Goose 1 1 0

Grumman G-73 Mallard 1 1 0










Gulfstream I 1 1 0

Gulfstream II 1 1 0


B-59


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Hughes 500D 2 2 0

Ilyushin 76 Candid 2 2 0




Lancair 360 1 1 0

Let 410 1 1 0


Lockheed C-141 Starlifter 1 1 0


Maule MT-7-235 2 2 0



Mooney M20-K 3 3 0

MRJ90 1 1 0



Pilatus PC-12 7 7 0


Pilatus Turbo Trainer PC-9 1 1 0














B-60


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Raytheon Beechjet 400 3 3 0







Robinson R22 3 3 0

Robinson R44 Raven / Lycoming O-540-F1B5 1 1 0


Rockwell 1121B Jet Commander-B 1 1 0





Saab 2000 1 1 0

Shorts 330 1 1 0

Sikorsky CH-53 Sea Stallion 2 2 0



SOCATA TBM 850 1 1 0

T-38 Talon 1 1 0 After the controlled inventory was developed by applying the airport level APU and GSE control strategies to the uncontrolled inventory, ERG compared the two inventories to confirm the control strategies were incorporated correctly. Table B-15 shows the difference in NOX emissions between the controlled and uncontrolled 2017 inventories.

No changes were required based on this QA check as the differences between the uncontrolled and controlled estimates reflected an expected decline in emissions.

B-61

Table B-15. Comparison of Controlled and Uncontrolled 2017 Emissions

Airport Uncontrolled 2017 NOX

Emissions (tons) Controlled 2017 NOX

Emissions (tons) Percent

Change (%)

Abilene Rgnl 114.95 114.79 -0.14

Austin-Bergstrom Intl 731.96 730.92 -0.14

Corpus Christi Intl 381.53 380.70 -0.22

Curtis Field 1.03 0.99 -4.03

El Paso Intl 326.29 321.10 -1.59

George Bush Intercontinental/Houston 2,336.08 2,279.82 -2.41

Lubbock Preston Smith Intl 125.77 124.01 -1.40

Rick Husband Amarillo Intl 340.33 338.14 -0.64

San Angelo Rgnl/Mathis Field 7.70 7.33 -4.77

San Antonio Intl 634.50 620.77 -2.17

Valley Intl 225.23 222.25 -1.33

William P Hobby 561.04 543.25 -3.17

Average -1.83 ERG performed the same comparison checks for 2020 as was done for 2017. The new 2020 statewide inventory (projected from the new 2017 baseline inventories) was compared to the previous 2020 inventory (developed from the Trend Analysis using the 2014 as the baseline). As expected, Tables B-16 to B-19 show differences/trends that are very similar to those seen in Tables B-10 to B-13. The small differences are due to the fact that the previous and recently projected 2020 inventories used factors based on the TAF data which have been updated since the 2014 inventory. ERG also confirmed that the aircraft used in the 2020 inventories matched the original aircraft used in the 2017 baseline as noted in Table B-20. Table B-21 shows the difference in NOX emissions between the controlled and uncontrolled 2020 inventories, similar to Table B-15 for 2017.

No changes were required based on this QA check.

B-62

Table B-16. Counties with the Highest Absolute Percent Changes in Emissions

County

2020 NOX Emissions (tons)

w/ AEDT + Revised Emission Factors from the 2017 Inventory

Effort


w/ EDMS + Previous

Emission Factors from Trends

Analysisa


(%)*


Emission Factors from the 2017 Inventory

Effort


Factors from Trends

Analysisa

LTO Percent Change

(%)

Jim Wells 111.89 0.31 36,331 13,303 4,308 209

Karnes 19.23 0.08 22,690 3,089 1,294 139

Victoria 264.03 2.39 10,966 31,957 30,540 5

Culberson 1.13 0.02 5,091 416 362 15

Wichita 552.44 10.92 4,960 80,959 75,272 8

Aransas 129.28 3.02 4,181 24,102 41,209 -42

Reeves 36.75 0.96 3,745 11,916 10,866 10

Angelina 23.86 0.66 3,539 29,507 9,547 209

Walker 24.16 0.80 2,933 14,960 10,848 38

Atascosa 6.35 0.26 2,356 4,888 3,380 45

La Salle 12.87 0.53 2,327 5,825 6,351 -8

Calhoun 8.77 0.36 2,322 6,425 5,084 26

Guadalupe 35.61 1.83 1,845 36,353 25,322 44

Matagorda 9.11 0.60 1,432 10,611 8,459 25

Howard 7.03 0.46 1,413 11,816 6,650 78

Coryell 2.18 0.16 1,292 7,615 2,355 223

Nueces 382.57 31.09 1,130 57,961 40,471 43

McLennan 142.56 12.30 1,059 101,910 68,799 48* Percent change greater than 1,000% a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission factors.

B-63

Table B-17. Airports with the Highest Absolute Percent Changes in Emissions Within the Previously Identified Counties.

County Airport


w/ AEDT + Revised

Emission Factors from the 2017 Inventory

Effort

2020 NOX Emissions (tons) w/ EDMS + Previous Emission

Factors from Trends

Analysisa


(%)*

2020 LTO w/ AEDT +


2017 Inventory

Effort


Factors from Trends

Analysisa

LTO Percent

Change (%)

Nueces John R. Armstrong Memorial Field 0.02 0.000034 55,632 274 1 26,346

Jim Wells Alice Intl 111.89 0.31 36,343 13,300 4,305 209

Karnes Karnes County 19.22 0.07 26,580 2,836 1,050 170

Victoria Victoria Rgnl 263.83 2.20 11,917 29,537 28,210 5

Matagorda Palacios Muni 8.34 0.11 7,549 3,530 1,480 139

Culberson Culberson County 1.13 0.02 6,108 300 250 20

Wichita Sheppard AFB/Wichita Falls Muni 549.62 9.36 5,773 52,407 52,931 -1

Aransas Aransas Co 129.27 3.02 4,185 24,000 41,110 -42

McLennan TSTC Waco 84.08 2.07 3,970 50,287 29,084 73

Calhoun Calhoun County 8.62 0.22 3,830 4,350 3,084 41

Reeves Pecos Muni 36.74 0.95 3,759 11,800 10,755 10

Angelina Angelina County 23.84 0.64 3,642 29,200 9,250 216

Walker Huntsville Muni 24.15 0.79 2,967 14,807 10,701 38

Atascosa Pleasanton Muni 6.34 0.25 2,474 4,640 3,140 48

La Salle Cotulla-La Salle County 12.86 0.52 2,367 5,539 6,075 -9

Guadalupe New Braunfels Muni 35.27 1.50 2,252 30,615 19,799 55

Howard Big Spring Mc Mahon-Wrinkle 7.02 0.46 1,432 11,760 6,596 78

Coryell Gatesville Muni 2.17 0.14 1,406 7,350 2,100 250

Nueces Corpus Christi Intl 381.89 30.42 1,155 48,145 30,797 56 * Percent change greater than 1,000% a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission factors

B-64

Table B-18. SCCs With the Highest Absolute Percent Change in Emissions Within the Previously Identified Airport/County Combinations.

County Airport SCC**



2017 Inventory

Effort

2020 NOX Emissions (tons) w/ EDMS + Previous Emission Factors from the Trends

Analysisa

Emissions Percent

Change (%)*



2017 Inventory

Effort

2020 LTO w/ EDMS + Previous Emission Factors from the Trends

Analysisa

LTO Percent Change

(%)

Jim Wells Alice Intl 2275001000 111.67 0.08 141,250 10,000 1,000 900

Angelina Angelina County 2275001000 21.27 0.02 107,571 1,904 250 662

Guadalupe New Braunfels Muni 2275001000 33.24 0.10 34,372 2,977 1,220 144


McLennan TSTC Waco 2275001000 81.10 0.42 19,075 7,263 5,354 36

Nueces John R. Armstrong Memorial Field 2275050011 0.01 0.00 18,989 198 1 18,989

Victoria Victoria Rgnl 2275001000 262.95 1.68 15,584 23,548 21,222 11

Reeves Pecos Muni 2275001000 35.93 0.23 15,448 3,218 2,925 10

La Salle Cotulla-La Salle County 2275001000 12.28 0.08 15,448 1,100 1,000 10

Atascosa Pleasanton Muni 2275001000 6.03 0.04 14,035 540 540 0

Calhoun Calhoun County 2275001000 8.37 0.06 14,035 750 750 0

Howard Big Spring Mc Mahon-Wrinkle 2275001000 6.25 0.04 14,035 560 560 0

Matagorda Palacios Muni 2275001000 8.15 0.06 14,035 730 730 0

Culberson Culberson County 2275001000 1.12 0.01 14,035 100 100 0


Walker Huntsville Muni 2275001000 23.24 0.16 14,032 2,082 2,082 0

Aransas Aransas Co 2275001000 128.42 1.28 9,903 11,500 16,250 -29

*High percent change due to updates to Military EF update **Military LTOs were all generic a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission

B-65

Table B-19. Airport/SCC Combinations Within the Top 26 Airports the Highest Activity.

County Airport* SCC

2020 NOX Emissions



Inventory Effort


w/ EDMS + Previous Emission

Factors from the Trends Analysisa


2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +

Previous Emission Factors from the Trends

Analysisa

LTO Percent Change

(%)

Tarrant Dallas/Fort Worth Intl 2275050012 6.56 0.98 570 8,891.83 850.36 946

Tarrant Dallas/Fort Worth Intl 2275060012 75.29 2.18 3,347 14,941.21 8,774.03 70

Tarrant Dallas/Fort Worth Intl 2275020000 5,231.63 3,825.47 37 335,181.92 378,710.16 -11

Harris George Bush Intercontinental/Houston 2275020000 2,260.41 1,590.24 42 186,164.88 221,363.95 -16

Harris George Bush Intercontinental/Houston 2275050012 0.41 2.56 -84 1,834.80 2,678.59 -32

Harris George Bush Intercontinental/Houston 2275060011 0.57 0.02 2,998 7,170.37 1,137.80 530

Harris George Bush Intercontinental/Houston 2275001000 2.59 0.76 242 236.17 907.02 -74

Harris George Bush Intercontinental/Houston 2275050011 0.14 0.01 1,407 4,372.14 537.33 714

Harris George Bush Intercontinental/Houston 2275060012 125.54 201.37 -38 55,307.21 97,343.26 -43

Dallas Dallas Love Field 2275060011 0.25 1.14 -78 3,172.20 6,499.51 -51

Dallas Dallas Love Field 2275020000 694.46 467.29 49 73,180.34 58,786.55 24



Dallas Dallas Love Field 2275001000 6.06 1.03 489 543.00 2,308.35 -76

Dallas Dallas Love Field 2275050011 0.69 0.13 455 21,339.80 1,376.04 1,451

Harris William P Hobby 2275060012 4.94 21.46 -77 9,868.73 19,046.89 -48

Harris William P Hobby 2275060011 0.22 0.01 1,954 2,753.67 955.33 188

Harris William P Hobby 2275001000 5.45 0.11 4,679 488.50 1,670.42 -71



Harris William P Hobby 2275050011 0.70 0.05 1,256 21,589.26 735.39 2,836

Travis Austin-Bergstrom Intl 2275050011 0.21 0.08 170 7,550.22 1,724.90 338

B-66


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Travis Austin-Bergstrom Intl 2275060011 0.00 0.59 -100 2.01 7,907.31 -100

Travis Austin-Bergstrom Intl 2275050012 31.11 12.73 144 21,953.40 14,750.63 49

Travis Austin-Bergstrom Intl 2275060012 1.37 10.35 -87 599.36 14,000.77 -96

Travis Austin-Bergstrom Intl 2275020000 759.99 790.99 -4 74,189.57 91,126.04 -19

Travis Austin-Bergstrom Intl 2275001000 0.08 0.09 -12 90.00 72.06 25

Denton Northwest Rgnl 2275060012 0.08 0.18 -54 208.89 454.60 -54

Denton Northwest Rgnl 2275050011 2.97 2.86 4 91,319.17 87,886.42 4

Denton Northwest Rgnl 2275050012 0.09 0.09 4 585.61 563.37 4

Denton Northwest Rgnl 2275060011 0.00 0.01 -54 58.34 127.86 -54

Tarrant Fort Worth Meacham Intl 2275050012 3.63 2.12 71 22,259.68 13,049.60 71


Tarrant Fort Worth Meacham Intl*** 2275001000 7.96 0.03 29,650 712.50 338.53 110



Tarrant Fort Worth Meacham Intl 2275020000 0.93 0.28 230 96.33 30.58 215

Bexar San Antonio Intl 2275050012 1.07 10.97 -90 6,250.65 11,538.62 -46

Bexar San Antonio Intl 2275050011 0.52 0.08 582 16,052.34 1,303.77 1,131

Bexar San Antonio Intl 2275020000 646.78 570.05 13 50,638.77 56,139.66 -10

Bexar San Antonio Intl*** 2275001000 26.96 1.15 2,250 2,416.00 714.30 238



Collin Collin County Rgnl At Mc Kinney 2275050011 1.67 0.35 380 51,321.69 10,700.21 380

B-67


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Collin Collin County Rgnl At Mc Kinney 2275060012 0.48 0.23 104 1,226.96 601.72 104

Collin Collin County Rgnl At Mc Kinney 2275060011 0.03 0.01 104 342.04 167.54 104

Collin Collin County Rgnl At Mc Kinney 2275050012 3.21 6.21 -48 19,859.57 38,383.47 -48

Collin Collin County Rgnl At Mc Kinney*** 2275001000 0.25 0.00 19,357 22.50 16.35 38

Potter Rick Husb+ Amarillo Intl 2275050011 0.56 0.25 126 17,370.08 7,677.11 126



Potter Rick Husb+ Amarillo Intl*** 2275001000 275.54 0.89 30,724 24,675.36 11,315.21 118


Potter Rick Husb+ Amarillo Intl 2275060011 0.09 0.10 -5 1,166.53 1,222.34 -5

Denton Denton Muni 2275060012 0.30 0.32 -6 767.19 814.77 -6


Denton Denton Muni 2275050011 1.49 0.59 153 45,904.02 18,111.38 153


Denton Denton Muni*** 2275001000 1.17 0.01 11,847 105.11 124.36 -15

Denton Denton Muni 2275050012 2.88 10.52 -73 17,763.14 64,970.05 -73

Harris David Wayne Hooks Memorial 2275050011 1.29 1.97 -35 39,543.91 60,695.05 -35


Harris David Wayne Hooks Memorial 2275060011 0.03 0.04 -23 398.59 519.15 -23

Harris David Wayne Hooks Memorial*** 2275001000 8.19 0.11 7,446 733.50 1,374.04 -47


Harris David Wayne Hooks Memorial 2275020000 0.02 0.02 -3 2.00 2.07 -3

B-68


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Tarrant Fort Worth Alliance 2275050012 2.06 2.07 -1 12,399.42 12,800.31 -3

Tarrant Fort Worth Alliance 2275020000 244.31 71.45 242 5,093.82 2,993.07 70



Tarrant Fort Worth Alliance*** 2275001000 68.88 0.69 9,911 6,168.50 8,709.74 -29

Williamson Georgetown Muni*** 2275001000 2.57 0.01 34,649 230.50 93.76 146

Williamson Georgetown Muni 2275060011 0.01 0.00 64 101.81 62.17 64

Williamson Georgetown Muni 2275050012 2.48 4.79 -48 15,314.97 29,602.18 -48

Williamson Georgetown Muni 2275060012 0.14 0.09 64 365.19 222.17 64

Williamson Georgetown Muni 2275050011 1.29 0.27 380 39,577.41 8,252.04 380

Harris West Houston 2275060011 0.01 0.01 -8 109.00 118.68 -8

Harris West Houston 2275050012 2.44 2.58 -5 15,067.53 15,942.70 -5

Harris West Houston 2275050011 1.27 1.34 -5 38,937.97 41,200.38 -5

Harris West Houston 2275060012 0.15 0.17 -8 391.00 425.73 -8

El Paso El Paso Intl 2275060012 7.95 3.39 134 6,704.98 8,830.89 -24

El Paso El Paso Intl 2275020000 201.89 211.12 -4 18,621.34 22,263.04 -16


El Paso El Paso Intl*** 2275001000 117.10 0.31 37,377 10,487.00 3,893.96 169



Wichita Sheppard AFB/Wichita Falls Muni 2275020000 0.38 5.32 -93 34.00 1,405.00 -98

Wichita Sheppard AFB/Wichita Falls Muni*** 2275001000 545.44 3.86 14,035 48,845.50 48,846.00 0

B-69


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Wichita Sheppard AFB/Wichita Falls Muni 2275050011 0.06 0.06 0 1,932.28 1,932.00 0

Wichita Sheppard AFB/Wichita Falls Muni 2275050012 0.12 0.12 0 747.72 748.00 0

Bexar Stinson Muni 2275020000 0.02 0.01 94 2.00 1.03 94

Bexar Stinson Muni 2275060012 0.52 0.62 -16 1,329.79 1,589.50 -16

Bexar Stinson Muni 2275050011 1.05 0.86 22 32,441.98 26,536.45 22

Bexar Stinson Muni 2275060011 0.03 0.03 -16 370.71 442.79 -16

Bexar Stinson Muni 2275050012 2.03 1.66 22 12,553.83 10,268.81 22

Bexar Stinson Muni*** 2275001000 47.97 0.41 11,645 4,296.00 5,170.01 -17

Mclennan TSTC Waco*** 2275001000 81.10 0.42 19,075 7,263.00 5,353.97 36

Mclennan TSTC Waco 2275050012 1.94 1.07 81 11,995.49 6,613.60 81

Mclennan TSTC Waco 2275020000 0.02 0.01 97 2.00 1.01 97


Mclennan TSTC Waco 2275050011 1.01 0.56 81 30,999.10 17,092.33 81


Medina Hondo Muni 2275050012 2.23 2.31 -4 13,752.33 14,274.40 -4

Medina Hondo Muni 2275050011 1.16 1.20 -4 35,539.17 36,887.60 -4

Dallas Addison 2275020000 0.49 1.14 -57 51.38 114.14 -55

Dallas Addison 2275060012 1.09 1.37 -21 2,805.43 3,544.60 -21

Dallas Addison 2275050011 1.06 1.04 1 32,511.99 32,114.15 1

Dallas Addison 2275060011 0.06 0.08 -21 782.08 987.84 -21

Dallas Addison*** 2275001000 1.80 0.01 12,084 161.00 186.78 -14

Dallas Addison 2275050012 2.05 2.01 2 12,580.92 12,426.86 1

B-70


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Nueces Corpus Christi Intl 2275060011 0.06 0.08 -34 700.08 1,058.16 -34

Nueces Corpus Christi Intl*** 2275001000 358.33 1.14 31,378 32,089.00 14,409.46 123

Nueces Corpus Christi Intl 2275060012 3.96 1.47 169 3,245.05 3,797.79 -15

Nueces Corpus Christi Intl 2275020000 18.95 26.83 -29 3,388.41 4,815.58 -30

Nueces Corpus Christi Intl 2275050011 0.20 0.05 330 6,288.36 1,464.04 330

Nueces Corpus Christi Intl 2275050012 0.39 0.85 -54 2,434.34 5,251.48 -54

Tarrant Gr+ Prairie Muni 2275050012 2.06 1.44 43 12,731.55 8,913.87 43

Tarrant Gr+ Prairie Muni*** 2275001000 21.22 0.24 8,577 1,900.00 3,095.25 -39

Tarrant Gr+ Prairie Muni 2275060012 0.03 0.01 104 72.73 35.66 104

Tarrant Gr+ Prairie Muni 2275050011 1.07 0.75 43 32,901.24 23,035.04 43

Tarrant Gr+ Prairie Muni 2275060011 0.00 0.00 99 20.27 10.19 99

Brazoria Pearl+ Rgnl 2275050012 2.12 2.28 -7 13,067.10 14,078.15 -7

Brazoria Pearl+ Rgnl 2275060012 0.07 0.08 -11 175.95 196.87 -11

Brazoria Pearl+ Rgnl 2275050011 1.10 1.18 -7 33,768.40 36,382.17 -7

Brazoria Pearl+ Rgnl 2275060011 0.00 0.00 -11 49.05 54.81 -11

Webb Laredo Intl 2275050012 1.08 0.36 201 5,756.82 2,170.40 165

Webb Laredo Intl 2275050011 0.48 0.02 2,369 14,875.67 602.55 2,369

Webb Laredo Intl 2275060011 0.05 0.01 650 686.96 92.47 643

Webb Laredo Intl 2275020000 68.14 44.12 54 3,270.73 6,040.74 -46

Webb Laredo Intl*** 2275001000 201.74 0.22 90,693 18,070.00 2,539.24 612

Webb Laredo Intl 2275060012 6.68 0.13 5,076 4,015.39 335.31 1,097

Harris Ellington Field*** 2275001000 137.16 9.15 1,398 12,283.00 13,567.46 -9

B-71


County Airport* SCC

2020 NOX Emissions



Inventory Effort





2020 LTO w/ AEDT +


2017 Inventory

Effort

2020 LTO w/ EDMS +


Analysisa

LTO Percent Change

(%)

Harris Ellington Field 2275050011 0.68 0.05 1,210 20,809.14 2,356.89 783

Harris Ellington Field 2275060012 1.30 7.11 -82 3,329.80 16,545.80 -80

Harris Ellington Field 2275060011 0.07 0.08 -9 927.70 7,268.07 -87

Harris Ellington Field 2275020000 9.40 19.84 -53 996.50 7,582.27 -87

Harris Ellington Field 2275050012 1.30 4.05 -68 8,052.36 6,282.52 28

Total 13,013 8,673 50 2,176,811 2,183,522 -0.31

*Airports with total aircraft LTO's greater than 45,000 ** High percent change due to updates to Military EF update ***Military LTOs were all generic a. Trend Analysis was based on the 2014 baseline inventory using EDMS and older EPA generic emission factors

B-72


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)


Agusta A-109 2 2 0

Air Tractor 802 1 1 0


Air Tractor AT-502B 1 1 0














Airbus A330-200 Series Freighter 1 1 0




Airbus A350-900 series 1 1 0

Airbus A380-800 Series/Trent 970 2 2 0



Antonov AN28 Cash 1 1 0

ATR 42-200 4 4 0

ATR 42-320 1 1 0

ATR 72-200 4 4 0


Ayres S2R-T34 Turbo-Thrush 1 1 0



BAE Jetstream 32-EP 1 1 0



Bell 407 / Rolls-Royce 250-C47B 2 2 0

B-73


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)















Boeing 737-800 with winglets 1 1 0


Boeing 737-900-ER 6 6 0




Boeing 747-800 Freighter 3 3 0




Boeing 767-200 ER 10 10 0


Boeing 767-300 ER 12 12 0

Boeing 767-300 ER Freighter 1 1 0

Boeing 767-400 ER 4 4 0


Boeing 777-200-LR 2 2 0

Boeing 777-300 ER 2 2 0


Boeing 787-900 Dreamliner 5 5 0




Boeing DC-6 1 1 0

B-74


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Boeing MD-11 5 5 0



Boeing MD-83 1 1 0

Boeing MD-88 3 3 0

Boeing MD-90 6 6 0


















CASA 295 1 1 0

CASA CN-235-100 1 1 0



Cessna 182 3 3 0

Cessna 206 2 2 0



Cessna 310 2 2 0


B-75


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)

Cessna 340 2 2 0

Cessna 402 1 1 0

Cessna 414 3 3 0







Cessna 525A CitationJet 1 1 0

Cessna 525B CitationJet 1 1 0

Cessna 525C CitationJet 1 1 0



Cessna 560 Citation V 1 1 0




Cessna 750 Citation X 4 4 0

Cirrus SR20 2 2 0

Cirrus SR22 3 3 0











DeHavilland DHC-3 Otter 1 1 0




EADS Socata TB-10 Tobago 1 1 0



B-76


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)

Eclipse 500 / PW610F 2 2 0

Embraer 500 3 3 0

Embraer 505 2 2 0



Embraer ERJ135 Legacy Business 1 1 0

Embraer ERJ135-ER 1 1 0
















Falcon 7X 5 5 0

Grumman A-6 Intruder 1 1 0

Grumman G-21G Goose 1 1 0

Grumman G-73 Mallard 1 1 0










Gulfstream I 1 1 0

Gulfstream II 1 1 0


B-77


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Hughes 500D 2 2 0

Ilyushin 76 Candid 2 2 0




Lancair 360 1 1 0

Let 410 1 1 0


Lockheed C-141 Starlifter 1 1 0


Maule MT-7-235 2 2 0



Mooney M20-K 3 3 0

MRJ90 1 1 0



Pilatus PC-12 7 7 0


Pilatus Turbo Trainer PC-9 1 1 0














B-78


Aircraft AEDT Input

Count of Aircraft


Percent Change (%)






Raytheon Beechjet 400 3 3 0







Robinson R22 3 3 0

Robinson R44 Raven / Lycoming O-540-F1B5 1 1 0


Rockwell 1121B Jet Commander-B 1 1 0





Saab 2000 1 1 0

Shorts 330 1 1 0

Sikorsky CH-53 Sea Stallion 2 2 0



SOCATA TBM 850 1 1 0

T-38 Talon 1 1 0

B-79

Table B-21. Comparison of Controlled and Uncontrolled 2020 Emissions

Airport

Uncontrolled 2020 NOX Emissions

(tons)

Controlled 2020 NOX Emissions

(tons)

Percent Change

(%)

Abilene Rgnl 115.18 115.01 -0.14

Austin-Bergstrom Intl 851.64 850.42 -0.14

Corpus Christi Intl 383.63 382.70 -0.24

Curtis Field 1.03 0.99 -4.03

El Paso Intl 340.98 335.43 -1.63

George Bush Intercontinental/Houston 2519.71 2459.59 -2.39

Lubbock Preston Smith Intl 132.45 130.53 -1.45

Rick Husband Amarillo Intl 342.08 339.83 -0.66

San Angelo Rgnl/Mathis Field 7.49 7.12 -4.91

San Antonio Intl 714.50 698.94 -2.18

Valley Intl 232.09 228.89 -1.38

William P Hobby 611.49 592.07 -3.18

Average -1.86

E. Reconciliation with User Requirements

ERG applied basic quality assurance/quality control (QA/QC) considerations to conduct this project. As per the requirements of a Category III QAPP, 10% of these estimates were validated by ensuring that the emission estimates for 2011, 2017 and 2020 were consistent with the previous 2011 inventory, the 2017 trend inventories, and the 2020 trend inventories, respectively. Below is a summary of the QA findings:

Variance between earlier EDMS estimates and output from the FAA’s new AEDT model were consistent with the FAA’s expectations.

Elevated activity levels at Sheppard airport appear to be realistic as it is the largest mixed-use Air Force airbase in the U.S.

Increased air taxi activities in the Dallas/Fort Worth area have been noted by independent data sources.

Correct application of new EPA generic military emission factors that replace factors that are three decades old.

Repeal of the Wright Amendment accounted for changes for airports in the Dallas/Fort Worth Area as well as smaller connecting airports in El Paso, Houston, and Austin.

Based on the QA checks one corrective action was required and made:

Revised the 2011 Hondo Municipal Airport LTO data to use the FAA actual 2011 values from TAF in lieu of the grown 2008 local data using TAF growth rates that were in error.

APPENDIX 12 DEVELOPMENT OF THE STATEWIDE AIRCRAFT … · 2019-08-22 · appendix 12 development of...

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