South Carolina 1997 8-Hour Ozone Attainment Demonstration
Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina (Metrolina) State Implementation
Plan (SIP)
South Carolina has resubmitted its Draft Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina (Metrolina) State Implementation Plan (SIP) attainment demonstration to the United States Environmental Protection Agency (EPA) for comment. A portion of York County was designated nonattainment for the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS).
EPA has determined (76 FR 70656, November 15, 2011) that this area has met the 1997 8-hour ozone NAAQS. This determination suspends the requirements for South Carolina to submit an attainment demonstration, associated reasonably available control measures (RACM), reasonable further progress (RFP) plan, contingency measures, and other planning SIPs for the area related to attainment of the 1997 8-hour ozone NAAQS, for as long as the area continues to meet the 1997 8-hour ozone NAAQS. Based on the clean data, DHEC has submitted a request to EPA to redesignate this area as attaining. EPA is currently evaluating DHEC's June 1, 2011, Redesignation Request and Maintenance Plan for the South Carolina portion of the Metrolina nonattainment area. On January 12, 2012, at the request of EPA Region 4, DHEC withdrew the attainment demonstration for the Metrolina nonattainment area except for the reasonable further progress plans and emissions inventories. The emissions inventory was approved May 18, 2012 (77 FR 29540).
On October 15, 2012, EPA approved the RFP plan and 2008 Volatile Organic Compound (VOC) Motor Vehicle Emissions Budget (MVEB) for the SC portion of the Metrolina nonattainment area (77 FR 62454).
On December 26, 2012, EPA published a final approval (77 FR 75862) of the redesignation plan for the South Carolina portion of the Metrolina nonattainment area. This redesignated the area from nonattainment to attainment. EPA also approved South Carolina’s 1997 8-hour ozone NAAQS maintenance plan, including the associated motor-vehicle emissions budget (MVEB), into the South Carolina State Implementation Plan (SIP).
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.