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On Public Notice | Proposed for Adoption

On Public Notice

Missouri State Implementation Plan Revision - Infrastructure Elements for the 2012 Annual PM2.5 Standard

This plan addresses infrastructure elements for the 2012 Annual Fine Particulate Matter (PM2.5) National Ambient Air Quality Standard (NAAQS), as required by Clean Air Act Section 110.  The plan provides for the implementation, maintenance, and enforcement of this standard for all areas of the state.  Missouri is demonstrating it has adequate resources and authority to implement the 2012 Annual PM2.5 NAAQS through state laws and regulations. This plan is administrative in nature and does not establish any new requirements.

Infrastructure Elements for the 2012 Annual PM2.5 Standard

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A public hearing is scheduled for this plan action on August 27, 2015. Comments about this plan action will be accepted through close of business on September 3, 2015.

Proposed Options for Area Boundary Recommendations for the 2010 1-Hour Sulfur Dioxide Standard:  July 2016 Designations

The purpose of this draft document is to solicit public comment on possible recommendations for area designations (e.g., attainment, nonattainment, unclassifiable) for the 2010 1-hour SO2 standard. This document addresses four parts of the State of Missouri:  the areas surrounding the Sikeston Power Station, Sibley Generating Station, Ameren Labadie Energy Center and the SO2 monitor located in Iron County, Missouri. The proposed options are based on technical evaluations of these areas using air quality modeling and monitoring data. The U.S. Environmental Protection Agency (EPA) identified these four areas as meeting the criteria specified in the March 2, 2015 Federal Consent Decree for the next round of SO2 designations. The Air Program intends to submit recommendations to the EPA in September 2015, and EPA will make a final decision on designations for these areas by July 2, 2016. This action will not be submitted for inclusion in the Missouri State Implementation Plan.

Proposed Options for Area Boundary Recommendations for the 2010 1-Hour Sulfur Dioxide Standard

Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F

Submit Comments Now

A public hearing is scheduled for this plan action on August 27, 2015. Comments about this plan action will be accepted through close of business on September 3, 2015.

Proposed for Adoption

Missouri State Implementation Plan Revision –Nonattainment Area Plan for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard – Jackson County Sulfur Dioxide Nonattainment Area

The main purpose of this SIP revision is to address Clean Air Act Amendments of 1990 (CAAA) section 172(c) and section 191(a) plan requirements as applicable to the Jackson County 2010 1-Hour Sulfur Dioxide (SO2) Nonattainment Area (NAA).  The plan’s main control strategy includes the reduction of SO2 emissions by 95 percent from the largest source in the NAA.  The plan also relies on SO2 emission limits for several other large sources in the area through state rulemaking.  All emission limitations necessary for demonstrating compliance will be enforceable through the proposed Missouri SO2 rulemaking, 10 CSR 10-6.261, Control of Sulfur Dioxide Emissions (to be presented for adoption on August 3, 2015).

A public hearing was held for this plan action (as well as the proposed Missouri SO2 rulemaking mentioned above) on June 25, 2015.  Comments about this plan action were accepted through the close of business on July 2, 2015.  Revisions to the plan have been made as a result of comments received.  The plan will be presented to the Missouri Air Conservation Commission for adoption on August 3, 2015. The revised plan and appendices are listed below along with a summary of the comments received and the corresponding responses from the Department.

Jackson County SO2 Nonattainment Area Plan
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix I
Appendix J

Summary of Comments and Responses