South Carolina 1997 8-Hour Ozone Attainment Demonstration
Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina (Metrolina) State Implementation
Plan (SIP)
In addressing the May 8, 2009, Finding of Failure to Submit, DHEC worked with the U.S. Environmental Protection Agency (EPA)'s Region 4 and the interagency consultation partners on a revised attainment demonstration based on updated modeling.
In the fall of 2009, EPA presented as an option resubmittal of the original attainment demonstration submitted in 2007, along with additional information to include 2011 modeling and actual air quality data from 2009. (Please note that the Metrolina air quality measurements for 2009 indicate that the fourth highest value at each monitor is well below the 1997 8-hour ozone standard.)
In lieu of submitting a revised South Carolina attainment demonstration for the Metrolina nonattainment area, as had been considered, DHEC has requested that EPA accept the previously submitted attainment demonstration for the Metrolina nonattainment area. In response to DHEC's decision, EPA is requiring additional information. A supplement was prepared as directed by EPA. It includes:
- Attainment modeling for 2011,
- Updates to the air quality data analysis including the 2009 ambient data,
- Additional updated information on emissions and controls that would affect the air quality for the 2010 ozone season, and
- A Volatile Organic Compound (VOC) motor vehicle emissions budget (MVEB).
- A 2008 VOC MVEB for the Reasonable Further Progress (RFP) appendix.
Supplement to the South Carolina 8-Hour Ozone Attainment Demonstration (April 29, 2010)
South Carolina 8-Hour Ozone Attainment Demonstration State Implementation
Plan (April 29, 2010)
- Attainment Demonstration - ADJUSTED
- Adjustments to South Carolina 8-Hour Ozone Attainment Demonstration State Implementation Plan
- Appendix A - Correspondence and Guidance Documents
- Appendix B - I & M Supporting Documents
- Appendix C - Air Quality Data
- Appendix D - Modeling Protocol
- Appendix E - Emissions Inventory Summary
- Appendix F.1 - Point Source Emissions Inventory Documentation
- Appendix F.2 - Non-point and Non-road Mobile Source Emissions Inventory
- Appendix F.3 - On-road Mobile Source Emissions Inventory - ADJUSTED
Appendix G - Quality Assurance of the Emissions Inventories
- Appendix H - Emission Modeling Deviation from Defaults
- Appendix I - Meteorological Model Performance
- Appendix J - Model Performance Evaluation
- Appendix K - Modeling Results
- Appendix L - Attainment Test
- Appendix M - Adopted State Measures
Appendix M 2 - Adopted State Control Measures
- R61-62.1 Definitions and General Requirements
- R61-62.2 Prohibition of Open Burning
- R61-62.5 Std2 Ambient Air Quality Standards
- R61-62.5 Std5.1 BACT-LAER for VOC
- R61-62.5 Std5.2 Control of Oxides of Nitrogen
- R61-62.5 Std5 Volatile Organic Compounds
- R61-62.5 Std7 Prevention of Significant Deterioration
- R61-62.5 Std7.1 Nonattainment New Source Review
- R61-62.96 NOX Budget Trading Program
- R61-62.99 NOX Budget for Sources Not in Trading Program
- Appendix N - Grid Resolution Journal Article 04052007
- Appendix O - Reasonable Further Progress - ADJUSTED
- Appendix P - Contingency Measures
- Appendix Q - VISTAS Supporting Documentation
- Appendix R - RACT – NOT WITHDRAWN*
- Appendix S - RFATS Transportation Conformity Correspondence
- *Appendix R: RACT from the original attainment demonstration submitted is not included as it is not a part of the attainment demonstration that was withdrawn.
- Extension of Attainment Date for the Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina 1997 8-Hour Ozone Moderate Nonattainment Area (May 31, 2011)
- Letter Correcting EPA Letter Stopping Sanctions Clock for the Metrolina Attainment Demonstration (June 18, 2010)
- Notice of Final Amendment to Air Quality State Implementation Plan (May 28, 2010)
- Request for a One-Year Extension of the 8-hour Ozone Attainment Date (May 6, 2010)
- Transmittal letter (April 29, 2010)
- Notice of General Public Interest, Comments and Response (April 29, 2010)
- DHEC letter to EPA (November 13, 2009)
- Finding of Failure to Submit (May 8, 2009)
- DHEC letter to EPA (December 22, 2008)
- EPA letter to DHEC (November 17, 2008)
- Legal Authority
- Map of Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina Nonattainment Area (EPA)
For more information please contact the Bureau of Air Quality at (803) 898-4123 or by email.