State Implementation Plan (SIP) - 2010 One-hour SO2 Standard

On June 22, 2010, U.S. EPA strengthened the National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). U.S. EPA set a new one-hour primary SO2 standard at 75 ppb and revoked the existing annual and 24-hour primary standards (for which Ohio had been in full attainment).

On August 21, 2015 USEPA published the final Data Requirements Rule for the 2010 SO2 standard. [80 FR 51052] This rule will require Ohio EPA to characterize SO2 emissions around sources not located in nonattainment areas but with the potential to impact compliance with the 2010 SO2 standard. This characterization will be either through monitoring or modeling. Based upon the DRR, under 40 CFR 51.1203, each state is required to submit a list of applicable SO2 sources identified pursuant to 40 CFR 51.1202 by January 15, 2016.

Nonattainment Area Recommendation

 Area

Letter to U.S. EPA

Document

Appendix(s)

Public Hearing Notice/ Results

U.S. EPA

(120-day) Response

Ohio EPA Response

Other Communication

Final Rule Date and FR Notice

Effective Date

Statewide

(Round 1)

June 3, 2011 

June 2011



 A-F

See Appendix F

Feb. 6, 2013
U.S. EPA Letter

U.S. EPA Technical Support Document

March 13, 2013

April 26, 2013

July 25, 2013

Final U.S. EPA Technical Support Document

Aug. 5, 2013

78 FR 47191



Oct. 4, 2013

Supplement 
June 29, 2011
               
Revision
April 12, 2012
   A-C See Appendix C          
Revision
Jan. 18, 2013
Revision
January 2013
 A-C            
Zimmer Consent Decree
(Round 2)
Sept. 16, 2015
August 2015
 A-H  

Feb. 16, 2016
U.S. EPA Letter

U.S. EPA Technical Support Document

Apr. 19, 2016

Ohio EPA Technical
Support Document
 

July 12, 2016

81 FR 45039

Sept. 12, 2016
Gavin/Kyger Creek Consent Decree
(Round 2)
Sept. 16, 2015 September 2015
 A-I  

Feb. 16, 2016
U.S. EPA Letter

U.S. EPA Technical Support Document

Apr. 19, 2016

Ohio EPA Technical
Support Document

 

July 12, 2016

81 FR 45039

 

Sept. 12, 2016
Statewide
(Round 3)
Jan. 13, 2017
January, 2017 A-AA See Appendix AA Aug. 22, 2017
U.S. EPA Letter
Oct. 20, 2017
Ohio EPA Technical Supports Document
     
Supplement
June 28, 2017
 
June, 2017
         
                   

 

The August 21, 2015 Data Requirements Rule for the 2010 SO2 standard [80 FR 51052] established ongoing data review requirements including, for areas where modeling of actual SO2 emissions served as the basis for an unclassifiable/attainment designation, an annual review of emissions data and submittal of a report recommending whether updated modeling is necessary due to emissions increases. The annual emissions review is due to U.S. EPA Region 5 by July 1, annually, beginning the calendar year after the effective date of designation.

Attainment Demonstration

 

Area

Letter to U.S. EPA

Documents

Appendix(s)

Public Hearing Notice/Results

Other Communication

Proposed Rule Date and FR Notice

Final Rule Date and FR Notice

Effective Date

Statewide

April 3, 2015

April 2015
A-L

 

 

 

 

 

Statewide Revised October 13, 2015
October 2015
A-M See Appendix M
       
                 

  

 

Redesignations and Maintenance Plans

Nonattainment Area

Original Classification

Letter to U.S. EPA

Document

Appendix(s)

Public Hearing Results

Other Communication

Proposed Rule Date and FR Notice

Final Rule Date and FR Notice

Effective Date

Campbell-Clermont KY-OH

Nonattainment

Aug. 11, 2015

August 2015

 A-L

See Appendix H

 

July 20, 2016

81 FR 47144

Nov. 21, 2016

81 FR 83158

Nov. 21, 2016

                   


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