Partial Approval and Partial Disapproval of Air Quality State Implementation Plans; Arizona; 
           Nonattainment Plan for the Hayden SO2 Nonattainment Area
                                  Final Rule
                      (Docket No. EPA-R09-OAR-2020-0109)
                                       
Docket Index Table of Contents

A. U.S. EPA Guidance Documents, Policies, and Rulemakings
B. State Plans, Rules, Support Documents, Reports, and Correspondence
C. Additional Documents for Proposed Rulemaking
D. Notices of Proposed Rulemaking and Technical Support Document
E. Public Comments and Related Documents
F. Additional Documents Considered for Final Plan Action
G. Notices of Final Rulemaking, Plan Action

A. U.S. EPA Guidance Documents, Policies, and Rulemakings

 EPA, Applicability of Appendix W Modeling Guidance for the 1-hour SO2 National Ambient Air Quality Standard (August 23, 2010).
      
 EPA, Guidance for 1-Hour SO2 Nonattainment Area SIP Submissions (April 23, 2014).

 57 FR 13498, State Implementation Plans; General Preamble for the Implementation of Title I of the Clean Air Act Amendments of 1990 (April 16, 1992).
      
 58 FR 3768, Criteria and Procedures for Determining Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Funded or Approved Under Title 23 U.S.C or the Federal Transit Act (January 11, 1993).

 75 FR 35520, Primary National Ambient Air Quality Standard for Sulfur Dioxide; Final Rule (June 22, 2010).
       
 77 FR 66398, Partial Approval and Disapproval of Air Quality Implementation Plans; Arizona; Infrastructure Requirements for Ozone and Fine Particulate Matter (November 5, 2012).

 78 FR 47191, Air Quality Designations for the 2010 Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard (August 5, 2013).

 80 FR 67319, Revisions to Air Plan; Arizona; Stationary Sources; New Source Review (November 2, 2015).

 81 FR 14736, Findings of Failure to Submit State Implementation Plans Required for Attainment of the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard (NAAQS) (March 18, 2016).

 82 FR 5182, Revisions to the Guidelines on Air Quality Models: Enhancements to the AERMOD Dispersion Modeling System and Incorporation of Approaches to Address Ozone and Fine Particulate Matter (January 17, 2017).

 83 FR 19631, Air Plan Approval; Arizona; Stationary Sources; New Source Review (May 4, 2018).

B. State Plans, Rules, Support Documents, Reports, and Correspondence

 Hayden SO2 Plan Submittal

      B-1a.	Arizona State Implementation Plan Revision: Hayden Sulfur Dioxide Nonattainment Area for the 2010 SO2 NAAQS (March 9, 2017). 

      B-1b.	Appendix A  -  Inventory Preparation Plan for the Hayden Sulfur Dioxide Nonattainment Area (March 8, 2017).

      B-1c.	Appendix B  -  Emissions Inventory for the Hayden Sulfur Dioxide Nonattainment Area (March 8, 2017).

      B-1d.	Appendix C  -  Modeling Technical Support Document for the Hayden Sulfur Dioxide (SO2) Nonattainment Area (March 8, 2017).

      B-1e.	Appendix D  -  SIP Regulations  -  Draft Notice of Final Rulemaking  -  Published Notice of Proposed Rulemaking (March 8, 2017).

B-1f.	Appendix E  -  Public Process Documentation (March 8, 2017).

B-1g.	Hayden SO2 SIP Submittal Letter and Authorizing Statutes.

B-1h.	Emission_Inventory_TSD.xlsx.

B-1i.	Exceedance_Risk_Analysis_20170216.xlsm.

B-1j.	Forecast_Emissions_20160927.xlsx.

B-1k.	Limit_Analyzer_20170227.xlsm.

B-1l.	eSIPS Summary Report (March 9, 2017). 

B-2.	Hayden Rule R18-2-B1302 Submittal

	B-2a.	Notices of Final Rulemaking for Pb and SO2 Rules (April 7, 2017).

	B-2b.	Appendix A  -  Public Process Documentation (April 6, 2017).

	B-2c.	Authorizing Statutes  -  Pb and SO2 Rules.

      B-2d.	Governor's Regulatory Review Council Certificate of Approval of Final Rules (March 7, 2017).

      B-2e.	Letter dated April 6, 2017, from Timothy S. Franquist, Director, Air Quality Division, ADEQ, to Alexis Strauss, Acting Regional Administrator, EPA Region IX, Subject: "Submittal of the Final Rules for the State Implementation Plans for Hayden Sulfur Dioxide Nonattainment Area, Hayden Lead Nonattainment Area, and Miami Sulfur Dioxide Nonattainment Area (April 6, 2017).
      
      B-2f.	eSIPS Summary Report (April 6, 2017).
      
B-3. 	Email dated March 25, 2020, from Farah Mohammadesmaeili, ADEQ, to Rynda Kay, EPA, Subject: "Hayden SO2 SIP Modeling Correction Notes."

C. Additional Documents for Proposed Rulemaking

C-1. 	EPA Region 9 Completeness Checklist (July 12, 2017).
      
C-2. 	Letter dated July 17, 2017, from Elizabeth J. Adams, Acting Director, Air Division, EPA Region IX, to Timothy S. Franquist, Director, Air Quality Division, ADEQ.

C-3. 	Letter dated September 26, 2017, from Elizabeth J. Adams, Acting Director, Air Division, EPA Region IX, to Timothy S. Franquist, Director, Air Quality Division, ADEQ.

D. Notices of Proposed Rulemaking and Technical Support Document

 85 FR 31118, Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Arizona; Nonattainment Plan for the Hayden SO2 Nonattainment Area (May 22, 2020).

 85 FR 31113, Limited Approval, Limited Disapproval of Arizona Air Plan Revisions, Hayden Area; Sulfur Dioxide Control Measures - Copper Smelters (May 22, 2020).

 "Technical Support Document for the EPA's Rulemaking for the Arizona State Implementation Plan; Arizona Administrative Code, Title 18, Chapter 2, Article 13, Part B  -  Hayden, Arizona, Planning Area, R18-2-B1302  -  Limits on SO2 Emissions from the Hayden Smelter," EPA Region IX, April 2020.

E. Public Comments and Related Documents

E-1. 	Letter dated June 18, 2020, from Daniel Czecholinski, Air Quality Division Director, ADEQ, to Rulemaking Docket EPA-HQ-OAR-2020-0109, Subject: "Partial Approval Partial Disapproval of Air Quality Implementation Plans; Arizona; Nonattainment Plan for the Hayden SO2 Nonattainment Area, Docket ID Number: EPA-HQ-OAR-2020-0109.

E-2. 	Letter dated June 22, 2020, from Todd Weaver, Senior Counsel, Freeport-McMoRan, to Rulemaking Docket EPA-R09-2020-0109, Subject: "Re: Comments on Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Arizona Nonattainment Plan for the Hayden SO2 Nonattainment Area (EPA-R09-OAR-2020-0109) and Limited Approval, Limited Disapproval of Arizona Plan Revisions, Hayden Area; Sulfur Dioxide Control Measures  -  Copper Smelters (EPA-R09-OAR-2020-0173).

E-3. 	Letter dated June 22, 2020, from Amy Veek, Environmental Manager, Asarco Hayden Operations, ASARCO LLC, to Ashley Graham, Air Planning Office, Air Division, EPA Region 9, Subject: "Re: Comments of ASARCO LLC on (1) "Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Arizona; Nonattainment Plan for the Hayden SO2 Nonattainment Area, 85 Fed. Reg. 31118 (May 22, 2020), Docket No. EPA-R09-OAR-2020-0109. (2) "Limited Approval, Limited Disapproval of Arizona Air Plan Revisions, Hayden Area; Sulfur Dioxide Control Measures - Copper Smelters, 85 Fed. Reg. 31113 (May 22, 2020), Docket No. EPA-R09-OAR-2020-0173." 

F. Additional Documents Considered for Final Plan Action

F-1. 	Letter dated April 29, 2019, from Elizabeth Adams, Air Division Director, EPA Region IX, to Timothy Franquist, Air Director, ADEQ, Subject: "Re: Comments on draft letter regarding R18-2-B1302."

F-2. 	"Response to Comments Document for the EPA's Final Actions on the `Arizona State Implementation Plan Revision: Hayden Sulfur Dioxide Nonattainment Area for the 2010 SO2 NAAQS' and Rule R18-2-B1302, `Limits on SO2 Emissions from the Hayden Smelter,'" EPA Region IX, October 2020.

G. Notices of Final Rulemaking

G-1. 	85 FR 70483, Limited Approval, Limited Disapproval of Arizona Air Plan Revisions, Hayden Area; Sulfur Dioxide Control Measures - Copper Smelters (November 5, 2020).

G-2. 	85 FR 71547, Partial Approval and Partial Disapproval of Air Quality Implementation Plans; Arizona; Nonattainment Plan for the Hayden SO2 Nonattainment Area (November 10, 2020).


