Jeremiah W Oay) Nixon, Governor • Sara Parker Pauley, Director 

T OF NATURAL RESOURCES 


www.dnr.mo.gov 

September 25,2015 

Mr. Mark Hague 

Acting Regional Administrator 

U.S. EPA, Region VII 

11201 Renner Boulevard 

Lenexa, KS 66219 

Dear Mr. Hague: 

The Missouri Department ofNatural Resources' Air Pollution Control Program (Air Program) 

hereby submits the following: 

Area Boundary Recommendations for the 2010 I-hour Sulfur Dioxide Standard: July 2016 


Designations 


Through this submittal, the Air Progran1 is requesting that EPA take these recommendations into 

consideration during the designation process to be completed by July 2, 2016. 

The state is recommending area designations (e.g., attainment, nonattainment, unclassifiable) for 

the 2010 I-hour S02 standard. The recommendations are based on technical evaluations using 

air quality modeling and monitoring data to address three parts of the State of Missouri: the 

areas surrounding the Sikeston Power Station, Sibley Generating Station, and Ameren Labadie 

Energy Center. The EPA identified these three areas as meeting the criteria specified in the 

March 2,2015 Federal Consent Decree for the next round ofS02 designations. The EPA also 

identified the S02 monitor located in Iron County, Missouri as a violating n10nitor. Missouri is 

not making a recommendation on this monitor at this tin1e, and an evaluation of the monitor is 

included for informational purposes. 

The Missouri Air Conservation Commission adopted these recon1mendations at the 

September 24, 2015 commission meeting. A public hearing for the proposed recon1mendations 

was held on August 27, 2015. A 30-day public comment period opened by July 27,2015 and 

closed on September 3, 2015. During the public comment period for the proposed plan, the Air 

Program received several comments from many commenters. A summary of the comments 

received and our responses are attached. 

In order to comply with Attachment A of the "Regional Consistency for the Administrative 

Requirements of State Implementation Plan Submittals and the Use of 'Letter Notices'" memo 

dated April 6, 2011 , a searchable pdf version of this document will be emailed to the EPA 

Regional Office. Within three business days, this complete submittal package will be posted on 

o Ree)'c1cd Paper 
Mr. Mark Hague 

Page Two 

our website at http://dnr.nlo.gov/env/apcp/stateplans.htm. The disk included with this submittal 

also includes an electronic copy of the recommendation. 

Thank you for your attention to this matter. If you have any questions regarding this submittal, 

please contact Ms. En1ily Wilbur with the Missouri Department of Natural Resources' Air 

Pollution Control Program at P.O. Box 176, Jefferson City, MO 65102 or by telephone at 

(573) 751-4817. 

Sincerely, 

AIR POLLUTION CONTROL PROGRAM 

/ ,A/l ~~. X~(I/~

Kyra L. Moore 

Director 

KLM:akc 

Enclosures: 

Copy of recommendations and appendices 

Copy of public hearing notices 

Copy of public hearing transcript introductory statement 

Copy of recommendation for adoption and summary of the comments and responses 

CD with electronic copy of the recommendations and appendices 

c: 	 Missouri Air Conservation Commission 

Project# 201 O-S02-4 Consent Decree