Redesignations and Maintenance Plans
This Web site is dedicated to Indiana's Redesignation Petitions and Maintenance Plans for counties that now meet the National Ambient Air Quality Standards (NAAQS). The Indiana Department of Environmental Management (IDEM) has prepared these Redesignation Petitions and Maintenance Plans for U.S. Environmental Protection Agency (U.S. EPA) review and consideration for these counties to be redesignated from nonattainment to attainment, and classified as maintenance under the standards. The list is broken down by nonattainment area and provides additional information to support continued compliance with the standard(s).
Table of Contents
Statewide
Transportation Conformity
- Cover Letter to U.S. EPA [PDF]
- Approval and Promulgation of the Indiana Transportation Conformity Process and Procedures State Implementation Plan effective October 18, 2010
- Final Indiana Transportation Conformity Process and Procedures State Implementation Plan
Lead and Ozone Infrastructure State Implementation Plan (SIP)
- Draft Lead and Ozone Infrastructure SIP [PDF]
- Public Hearing Notice [DOC]
- There will be no public hearing since no requests for a hearing were received in response to this legal notice.
- Public Hearing Notice [DOC]
Central Indiana Area
8-hour Ozone
- Approval and Promulgation of Central Indiana 8-Hour Ozone State Implementation Plan effective October 19, 2007 [PDF]
- Cover Letter to U.S. EPA (March 26, 2007) [PDF]
- Final Central Indiana 8-Hour Ozone Redesignation Petition and Maintenance Plan [PDF]
Annual Fine Particles (May 31, 2011)
- Cover Letter to U.S. EPA (May 31, 2011) [PDF]
- Final Central Indiana Annual Fine Particles Redesignation and Maintenance Plan [PDF]
Annual Fine Particles (October 20, 2009)
- Cover Letter to U.S. EPA (October 20, 2009) [PDF]
- Final Central Indiana Annual Fine Particles Redesignation Request and Maintenance Plan [DOC]
Carbon Monoxide
- Approval and Promulgation of Lake and Marion Counties, Indiana Carbon Monoxide (CO) Limited State Implementation Plan effective December 14, 2009
- Cover Letter to U.S. EPA (January 12, 2009) [PDF]
- Final Lake and Marion Counties Carbon Monoxide (CO) Limited Redesignation Request and Maintenance Plan Update [DOC]
Lead
- Approval and Promulgation of Marion County, Indiana, Lead State Implementation Plans effective November 23, 2009
- Technical Addendum July 6, 2009 [PDF]
- Technical Addendum June 5, 2009 [PDF]
- Cover Letter to U.S. EPA (April 1, 2009) [PDF]
- Final Marion County, Indiana, Lead Redesignation Request and Maintenance Plan Update [DOC]
Onroad Emissions MOBILE6.2 to MOVES
- Cover Letter to U.S. EPA (April 16, 2012) [PDF]
- Final Onroad Emissions MOBILE6.2 to MOVES Replacement Submittal [PDF]
Allen County
8-hour Ozone
- Approval and Promulgation of Allen County 8-Hour Ozone State Implementation Plan effective February 12, 2007
- Cover Letter to U.S. EPA (May 30, 2006) [PDF]
- Final Allen County 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
Clark & Floyd Counties
8-hour Ozone
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revisions Technical Addendum (November 19, 2010) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revisions Supplemental Information (April 23, 2010) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Action Level Response Letter to U.S. EPA (February 2, 2009) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revisions Supplemental Information (November 25, 2008) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revisions Supplemental Information (August 18, 2008) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration Technical Addendum (November 29, 2007) [PDF]
- Approval and Promulgation of Clark and Floyd Counties 8-Hour Implementation Plan effective July 19, 2007 [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revisions (November 15, 2006) [PDF]
- Clark and Floyd Counties 8-Hour Ozone Clean Air Act Section 110(l) Demonstration and State Implementation Plan Revision for Clark and Floyd Counties (October 10, 2006) [PDF]
- Cover Letter to U.S. EPA (July 10, 2006) [PDF]
- Final Clark and Floyd Counties 8-Hour Ozone Redesignation Request and Maintenance Plan (July 10, 2006) [PDF]
Annual Fine Particles
- Cover Letter to U.S. EPA (June 16, 2011)[PDF]
- Final Clark and Floyd Counties and Jefferson County (Madison Township) Annual Fine Particles Redesignation Request and Maintenance Plan [PDF]
Dearborn County
Lawrenceburg Township
8-Hour Ozone
- Approval and Promulgation of Dearborn County (Lawrenceburg Township) 8-Hour Ozone State Implementation Plan effective May 11, 2010
- Cover Letter to U.S. EPA (January 12, 2010) [PDF]
- Final Dearborn County (Lawrenceburg Township) 8-Hour Ozone Redesignation Request and Maintenance Plan [DOC]
Annual Fine Particles
- Approval and Promulgation of Dearborn County (Lawrenceburg Township) Annual Fine Particles State Implementation Plan effective December 23, 2011
- Cover Letter to U.S. EPA (January 25, 2011) [PDF]
- Final Dearborn County (Lawrenceburg Township) Annual Fine Particles Redesignation Request and Maintenance Plan [PDF]
Delaware County
Muncie Nonattainment Area
8-hour Ozone
- Approval and Promulgation of Delaware County 8-Hour Ozone State Implementation Plan effective January 3, 2006
- Cover Letter to U.S. EPA (August 25, 2005) [PDF]
- Final Delaware County 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
Greene County
Linton Nonattainment Area
8-hour Ozone
- Approval and Promulgation of Green and Jackson Counties 8-Hour Ozone State Implementation Plans effective December 29, 2005
- Cover Letter to U.S. EPA (September 6, 2005) [PDF]
- Final Greene County 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
Jackson County
Seymour Nonattainment Area
8-hour Ozone
- Approval and Promulgation of Green and Jackson Counties 8-Hour Ozone State Implementation Plans effective December 29, 2005
- Cover Letter to U.S. EPA (October 6, 2005) [PDF]
- Final Jackson County 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
Lake County
Gary & Hammond
Sulfur Dioxide (SO2) Nonattainment Area
- Approval and Promulgation of the Lake County Sulfur Dioxide (SO2) State Implementation Plan effective October 26, 2005
- Cover Letter to U.S. EPA (August 11, 2005) [PDF]
- Final Lake County Sulfur Dioxide (SO2) Redesignation Request and Maintenance Plan [PDF]
- Appendix A [XLS]
- Appendix B [PDF]
- Appendix C [PDF]
- Appendix D - Modeling Files
- Note: Anyone interested in the modeling files in Appendix D should contact, via email, info at idem.in.gov
- Appendix E - Administrative Documents
- Note: Anyone interested in the administrative documents in Appendix E should contact, via email, info at idem.in.gov
Lake and Porter Counties
8-hour Ozone
- Approval and Promulgation of Lake and Porter Counties 8-Hour Ozone State Implementation Plans effective May 11, 2010
- Lake and Porter Counties 8-Hour Ozone Rdesignation Request and Maintenance Plan Technical Addendum (June 5, 2009) [PDF]
- Attachment: LADCO TSD Supplement without CAIR modeling [PDF]
- U.S. EPA Cover Letter (June 5, 2009) [PDF]
- Final Lake and Porter Counties 8-Hour Ozone Redesignation Request and Maintenance Plan [DOC]
- Final Lake and Porter Counties 8-Hour Ozone Reasonably Available Control Technology (RACT) Cover Page [PDF]
- Final Lake and Porter Counties 8-Hour Ozone Attainment Demonstration [DOC]
Annual Fine Particles (May 26, 2011)
- Approval and Pomulgation of Lake and Porter Counties Annual Fine Particles State Implementation Plan effective February 6, 2012 [PDF]
- Cover Letter to U.S. EPA (May 26, 2011) [PDF]
- Final Lake and Porter Counties Annual Fine Particles Redesignation Request and Maintenance Plan [PDF]
Annual Fine Particles (April 3, 2008)
- Clean Data Finding (August 14, 2009) [PDF]
- Cover Letter to U.S. EPA (April 3, 2008) [PDF]
- Final Lake and Porter Counties Annual Fine Particles Redesignation Request and Maintenance Plan [DOC]
- Appendix A [DOC]
- Appendix B [DOC]
- Appendix C [DOC]
- Appendix D [DOC]
- Appendix E [DOC]
- Appendix F [DOC]
- Appendix G:
- 2007 AQS Monitoring Data [DOC]
Carbon Monoxide
- Approval and Promulgation of Lake and Marion Counties, Indiana, Carbon Monoxide (CO) Limited State Implementation Plan effective December 14, 2009
- Cover Letter to U.S. EPA (January 12, 2009) [PDF]
- Final Lake and Marion Counties, Indiana, Carbon Monoxide (CO) Limited Redesignation Request and Maintenance Plan [PDF]
LaPorte County
8-hour Ozone
- Technical Correction for Approval and Promulgation of LaPorte County 8-Hour Ozone State Implementation Plan effective August 8, 2007
- Approval and Promulgation of LaPorte County 8-Hour Ozone State Implementation Plan effective July 19, 2007
- Cover Letter to U.S. EPA (May 30, 2006) [PDF]
- Final LaPorte County 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
- Appendices A-E [PDF]
- Appendix F:
St. Joseph & Elkhart County
8-hour Ozone
- Approval and Promulgation of St. Joseph and Elkhart Counties State Implementation Plan effective July 19, 2007
- Cover Letter to U.S. EPA (May 30, 2006) [PDF]
- Final St. Joseph and Elkhart Counties 8-Hour Ozone Ozone Redesignation Request and Maintenance Plan [PDF]
Vanderburgh and Warrick Counties
Evansville Nonattainment Area
8-hour Ozone
- Approval and Promulgation of Vanderburg and Warrick 8-Hour Ozone State Implementation Plan effective January 30, 2006
- Cover Letter to U.S. EPA (June 2, 2005) [PDF]
- Final Vanderburg and Warrick Counties 8-Hour Ozone Redesignation Request and Maintenance Plan [PDF]
Annual Fine Particles
- Approval and Promulgation of Southwest Indiana Annual Fine Particles State Implementation Plan effective October 27, 2011 [PDF]
- Cover Letter to U.S. EPA (April 8, 2011) [PDF]
- Final Southwest Indiana Annual Fine Particles Redesignatnion Request and Maintenance Plan [PDF]
Vigo County
Terre Haute Nonattainment Area
8-hour Ozone
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