Attainment demonstrations are required by the Clean Air Act (CAA) for areas classified as moderate nonattainment or above. As of June 3, 2016 the Environmental Protection Agency (EPA) designated both of Connecticut's nonattainment areas as moderate. While both areas were originally designated as marginal nonattainment based on monitored ozone levels, these designations underestimated the significant persistence of the ozone problem and the areas were unable to attain the standard by the marginal deadline and were thereby reclassified by the EPA to moderate.

New York-N. New Jersey-Long Island, NY-NJ-CT Connecticut Counties included: Fairfield, New Haven, Middlesex

Greater Connecticut Connecticut Counties included: Litchfield, Hartford, Tolland, Windham, New London

This revision addresses the Connecticut portion of the New York-N. New Jersery-Long Island, NY-NJ-CT Nonattainment area (Southwest Connecticut: Fairfield, New Haven and Middlesex Counties). Specifically, DEEP is submitting the following to meet the requirement of an Attainment Demonstration under the moderate classification for the 2008 ozone standard and to address the 1997 ozone standard State Implementation Plan (SIP) call. The plan demonstrates that Connecticut has addressed the requirements as outlined under the Clean Air Act (CAA) for an area such as Southwest Connecticut. However, it also demonstrates that Connecticut is overwhelmingly impacted by out of state emissions. In fact, the worst observed air quality in Connecticut is 95% due to emissions other than Connecticut's sources. Therefore, the problem of ozone in Southwest Connecticut is only solvable if upwind states fully address their obligations under the Good Neighbor provisions of the CAA, which to date, they have failed to do so.  

Cover Letter (PDF)

Enclosure A: Technical Support Document (PDF)

• Appendix A- Demonstration that Connecticut's NNSR SIP Satisfies the Requirements for Implementation of the 2008 Ozone National Ambient Air Quality Standard (PDF)
• Appendix B- Ozone Exceedance Analyses (webpage)
• Appendix C- 2011 Base Year Inventory for RFP: Revisions Made to 2011 PEI (PDF)
•  Appendix D- MOVES Input Files
  • Excel Inputs (ZIP file)
  • MOVES Inputs (ZIP file)
  • MOVES Outputs (ZIP file)
  • MOVES Run Specs (ZIP file)
• Appendix E- Detailed Source Category Listings of 2011 and 2017 Estimated Emissions (XLS)
• Appendix F- Connecticut DOT 2015 Statewide Transportation Improvement Program Project List

Enclosure B: Public Notice as Published

Enclosure C: Certification of Public Review Process

Enclosure D: Hearing Report

• Cover Letter
• Enclosure A: Technical Support Document
  • Appendix A- Demonstration that Connecticut's NNSR SIP Satisfies the Requirements for Implementation of the 2008 Ozone National Ambient Air Quality Standard
  • Appendix B- Ozone Exceedance Analyses (webpage)
  • Appendix C- 2011 Base Year Inventory for RFP: Revisions Made to 2011 PEI
  • Appendix D- MOVES Input Files
    • Excel Inputs (ZIP file)
    • MOVES Inputs (ZIP file)
    • MOVES Outputs (ZIP file)
    • MOVES Run Specs (ZIP file)
  • Appendix E- Detailed Source Category Listings of 2011 and 2017 Estimated Emissions
  • Appendix F- Connecticut DOT 2015 Statewide Transportation Improvement Program Project List
• Enclosure B: Public Notice as Published
• Enclosure C: Certification of Public Review Process
• Enclosure D: Hearing Report

Proposal: