OTAG Technical Supporting Document
Chapter 3 Table of Contents

Figures
Figures 3-1 to 3-8
Figures 3-9 to 3-16
Figures 3-17 to 3-23
Figures 3-24 to 3-34

Part I: 1990 Base-Year Development

1. Background
•Ozone Transport Assessment Group Purpose and Structure
•Key Data Needed—Emissions, Air Quality, Meteorology, Modeling

2. 1990 Base-Year Emissions Inventory Development
•Inventory Components—Point, Area, Mobile, Non-Road, Biogenic
•Interim Emissions Inventory (OTAG Default)
•State Data Collection Procedures
•State Data Incorporation Procedures and Guidelines
     •Point Source Estimates
     •Area Source Estimates
     •Vehicle Miles Traveled and Mobile Inputs
•Biogenics Data Development and Processing
     •BEIS
     •BEIS2

3. Quality Assurance Procedures
•Quality Assurance Concerns and Resolutions
     • Interim/State Comparison
     •Rule Effectiveness
     • Coordinates
     •Stack Parameters (Missing/Erroneous)

4. References

Part II: Base-Year Modeling Inventory Development

1. Introduction
•Episodes
•Geographic Coverage

2. Emissions Modeling
•Overview of EMS-95
     •Grid Definition
     •Point Source
     •Area Source
     •Biogenics (BIOME)
     •Motor Vehicle (MoVEM)
     •Growth
     • Control
     • Speciation
•Model Inputs
•Modifications for OTAG
     •Motor Vehicles
     • Speciation
     •Time Zones
     • Gridding
     • Reports
•Preparation of UAM-V Input Files

3. Development of Base-Year Emissions Inventory
•Point Sources
•Area Sources
•Motor Vehicles
     •VMT Data
     •Emissions Factors
•Biogenic Sources
     •Basecase Modeling
     • Sensitivity Modeling
     •Ambient Data Analysis

4. Modeling Inventory Adjustments
•Spatial Distribution
•Temporal Allocation
•Chemical Speciation

5. Quality Assurance
•EMS-95 Model Code
•Benchmarking
•Initial Review of Inventory
     • Completeness
     •Data Range Checks
     •MOBILE5 Inputs
     •Emissions Totals
     • Additional Review of Inventory

6. Emissions Summaries

7. References

Part III: Projections and Controls

1. Introduction
•Overview of OTAG Projection Years and Strategies

2.Development of 2007 Basecase
•Overview of Basecase
•Growth Factors
     •Bureau of Economic Analysis
     •Utility
        •Generic Units
        •Planned Units
        •Existing Units
     •Vehicle Miles Traveled
     •State-Submitted Data
•Control Factors
     •Electric Utilities
        •Reasonably Available Control Technology
        •Title IV
        •Emissions Rates for Planned and Generic Units
        •New Source Review/Offsets
        •State Data
     • Non-Utility Point Source Controls
     • Stationary Area Source Controls
     •Non-Road Mobile Controls
     •Highway Mobile Controls
     •1996 ROP Requirements

3. Round 1 Strategies
•Level 0
     •Electric Utility Controls
        •Calculation of 2007 OTAG Emissions Limits
        •Conversion From 2007 Emissions Limits to Percentage Reductions
     •Highway Mobile Controls
     •Non-Road Mobile Controls
     •1999 RFP Requirements
•Level 1
     •Electric Utility Controls
     • Non-Utility Point Source Controls
     •Highway Mobile Controls
     •Non-Road Mobile Controls
•Level 2
     •Electric Utility Controls
     • Non-Utility Point Source Controls
     •Highway Mobile Controls
     •Non-Road Mobile Controls
     •Stationary Area Source Controls
•Level 3
     •Electric Utility Controls
     •Highway Mobile Controls
     •Non-Road Mobile Controls

4. Round 2 Strategies
•Overview of Round 2
•Highway Mobile Level 1.5
•Emissions Summaries

5. Round 3 Strategies
•Overview of Round 3
•Highway Mobile Level 1.3
•Additional Round 3 Runs
•Emissions Summaries

6. References

Appendix A
•Tier 2 Emissions Summary

Appendix B
•Emissions Inventory Data Request Letters

Appendix C
•Ozone Transport Assessment Group State Emissions Inventory Contacts

Appendix D
•Location of Ozone Transport Assessment Group Data

Appendix E
•Data Formats and Update History

Appendix F
•Sample State Quality Assurance Package

Appendix G
•Surrogate Assignments for Area Sources

Appendix H
•Map of Area Source Population Surrogate

Appendix I
•Day-Specific Emissions Summaries

Appendix J
•Base-Year Emissions Summaries Spatial Plots

Appendix K
•List of Controls by Level

Tables
•Table 3-1. Interim Inventory Component Data Sources
•Table 3-2. Additional Utility Data Submitted
•Table 3-3. Point Source Data Submitted
•Table 3-4. Area Source Data Submitted
•Table 3-5. TSDF Emissions Removed From the OTAG Inventory
•Table 3-6. State-Level Daily VMT Totals in the OTAG Inventory
•Table 3-7. OTAG 1991 I/M Program Coverage
•Table 3-8. OTAG/Interim Inventory Tier 2 Comparison
•Table 3-9. Point Source Model—Key Input Files
•Table 3-10. Area Source Model—Key Input Files
•Table 3-11. Motor Vehicle Model—Key Input Files
•Table 3-12. Procedures for Preparing Base-Year Emissions Inventories
•Table 3-13. VMT Summary for OTAG Region
•Table 3-14. Motor Vehicle Speeds by Facility and Vehicle Type (Miles per Hour)
•Table 3-15. Mandatory and Opt-In RFG Areas
•Table 3-16. Facilities With Day-Specific Data
•Table 3-17. Special Utility Daily and Hourly Profiles
•Table 3-18. Results of Initial Point Source Quality Assurance Checks
•Table 3-19. Results of Initial Area Source Quality Assurance Checks
•Table 3-20. Results of Initial Motor Vehicle Quality Assurance Checks
•Table 3-21. Additional Inventory Revisions
•Table 3-22. Facilities With Erroneous Stack Parameters
•Table 3-23. Total Daily Regional VOC and NOx Emissions (TPD)
•Table 3-24. 2007 Detailed Generic Unit Data
•Table 3-25. Planned Unit Detailed Data
•Table 3-26. Electric Utility Units Retired by 2007
•Table 3-27. Default Existing Utility Unit Growth Factors Used in OTAG Base 1
•Table 3-28. Changes in Utilization at Existing Utility Units
•Table 3-29. Summary of State-Supplied Growth and Control Data
•Table 3-30. RACT Emissions Rates and Percentage Reductions Assumed in Base 1
•Table 3-31. Ozone Nonattainment Areas Modeled With NOx RACT Waivers
•Table 3-32. Title IV Emissions Rate Limits and Default Reduction Percentages
•Table 3-33. Default VOC Point Source Controls
•Table 3-34. Default Non-Utility NOx RACT Controls
•Table 3-35. Default VOC Area Source Controls
•Table 3-36. Default NOx Area Source Controls
•Table 3-37. Characteristics of Basic I/M Programs
•Table 3-38. Characteristics of Low-Enhanced I/M Programs
•Table 3-39. Characteristics of High-Enhanced I/M Programs
•Table 3-40. List of Counties Modeled With I/M Programs
•Table 3-41. List of Areas Modeled With Reformulated Gasoline
•Table 3-42. Counties Modeled With 7.8 psi RVP in OTAG 2007 Base 1
•Table 3-43. MOBILE5a Base Emissions Rate Corrections Modeled in Base 1
•Table 3-44. 1996 ROP Calculations
•Table 3-45. Implementation Schedule of NLEV Program in the Ozone Transport Region
•Table 3-46. MOBILE Modeling of Proposed Heavy-Duty Vehicle Standard
•Table 3-47. OTAG Level 0 1999 RFP Calculations (TPD)
•Table 3-48. VOC Controls Applied To Meet 1999 RFP Targets Level 0 (TPD)
•Table 3-49. Default NOx Emissions Rates by SCC
•Table 3-50. Round 2 Modeling Runs
•Table 3-51. Round 2 Non-Utility Point, Non-Road, Stationary Area, and Highway VOC Emissions
•Table 3-52. Round 2 Non-Utility Point, Non-Road, Stationary Area, and Highway NOx
•Table 3-53. Round 2 Non-Utility Point, Non-Road, Stationary Area, and Highway CO
•Table 3-54. Round 2 Utility Emissions
•Table 3-55. Round 3 Modeling Runs
•Table 3-56. Round 3 Supplemental Modeling Runs
•Table 3-57. Round 3 VOC Area/Mobile Emissions Summary
•Table 3-58. Round 3 NOx Area/Mobile Emission Summary
•Table 3-59. Round 3 CO Area/Mobile Emissions Summary
•Table 3-60. Round 3 VOC Point Source Emissions Summary
•Table 3-61. Round 3 CO Point Source Emissions Summary
•Table 3-62. Round 3 Utility NOx Emissions Summary
•Table 3-63. Round 3 Non-Utility NOx Emissions Summary
•Table 3-64. Round 3 Supplemental Modeling Runs NOx Emissions Summary