1 **Index to Docket**  **EPA -**  **R09 -**  **OAR -**  **2014 -**  **026 6**  **Redesignation of the**  **Hayden, Arizona Area**  **to Nona ttainment**  **For the 2008 Lead (Pb) National Ambient Air Quality**  **Standard s** 

Revised September 25, 2014 **CATEGORY I .**  **Proposed Rule** 1. “ Desi gnation of Areas for Air Qu a lity Planning Purposes; State of Arizona; Pinal County and Gila County; Pb ; Proposed Rule ” signed April 21, 2014 (prepublication version) 2. “ Designation of Areas for Air Qu a lity Planning Purposes; State of Arizona; Pinal County and Gila County; Pb; Proposed Rule . ” 79 FR 25077; May 2, 2014 **CATEGORY I**  **I .**  **Official P**  **ublic C**  **omment on the**  **N otice of**  **P roposed**  **R ulemaking**  1. Letter from Krishna Parameswaran, Director, Environmental Services and Compliance Assurance, Environmental Affairs Department, ASARCO LLC, to Ginger Vagenas, US EPA Region 9, dated June 2, 2014 **CATEGORY I**  **II .**  **O ther**  **D ocuments**  1. Letter from Janice K. Brewer, Governor of Arizona, to Laura Yoshii, Acting Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated December 15, 2009 2. Letter from Benjamin H. Grumbles, Director, Arizona Department of Environmental Quality, to Laura Yoshii, Acting Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated December 17, 2009 3. Arizona Air Quality Designations Technical Support Document – Boundary Recommendation for the 2008 Revision to the National Ambient Air Quality Standard for Lead, December 9, 2009 (“ADEQ 2009 TSD”) . Enclosure to December 17, 200 9 letter from Benjamin H. Grumbles, Director, Arizona Department of Environmental Quality, to Laura Yoshii, Acting Regional Administrator, U.S. Environmental Protection Agency, Region 9 4. Email exchange between US EPA Region 9 and Arizona Department of Environmental Quality regarding monitor placement, dated April 1, 2010 5. Letter from Jared Blumenfeld, Regional Administrator, U.S. Environmental Prot ect ion Agency, Region 9, to Jani ce K. Brewer, Governor of Arizona, dated June 14, 20102

6. EPA 2010 draft tech nical support document entitled “ARIZONA, Area Designations for the 2008 Lead National Ambient Air Quality Standards”
7. Letter from Janice K. Brewer, Governor of Arizona, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated August 12, 2010 8. “State and Public Comment Summary and Response Document on EPA’s Recommended Area Designations for the 2008 Lead Deisgnation Recommendations – EPA- HQ- OAR - 2009 - 0443” dated November 16, 2010 9. Letter from Henry K. Darwin, Acti ng Director, Arizona Department of Environmental Quality, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, Region 9 , dated December 15, 2010 10. Memorandum signed by Scott Mathias, Interim Director, Air Quality Policy Divisi on, Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, entitled “2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS) Implementation Questions and Answers” dated July 8, 2011 11. Letter from Henry K. Darwin, Acting Di rector, Arizona Department of Environmental Quality, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated August 15, 2011 12. Attachment 1 to l etter from Henry K. Darwin, Acting Director, Arizona Department of Environmental Quality, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, R egion 9, dated August 15, 2011 13. Quality Assurance Program Plan for the Lead (Pb) Ambient Air Monitoring Network, Attachment A. Arizona Department of Environmental Quality, October 24, 2011 (divided into six parts) 13 - a: Part 1 13 - b: Part 2 13 - c: Part 3 13 - d: Part 4 13 - e: Part 5 13 - f: Part 6 14. Letter from Lisa P. Jackson, Administrator, U.S. Environmental Protection Agency, to Janice K. Brewer, Governor of Arizona, dated November 8, 2011 15. Quality Assurance Program Plan for the Arizona Department of Environmental Quality Lead (Pb) Ambient Air Mon itoring Network, December 26, 2012, with transmittal letter dated January 22, 2013 (divided into three parts)3 15 - a: Part 1 15 - b: Part 2 15 - c: Part 3 16. Memorandum to file from Colleen McKaughan, Associate Director, Air Division, U.S. Environmental Protection Agency, Region 9 dated June 11, 2013. Subject: Communication with San Carlos Apache Tribe Regarding Designation of Hayden, Arizona to Nonattainment for the Lead NAAQS 17. Letter from Jared Blumenfeld, Regional Administrator, U.S. Environmental Pro tection Agency, Region 9, to Janice K. Brewer, Governor of Arizona, dated June 12, 2013 18. Email from Colleen McKaughan, Associate director, U.S. Environmental Protection Agency, Region 9, to Loretta Stone, Director, San Carlos EPA, San Carlos Apache Tribe, dated June 13, 2013 19. U.S. Environmental Protection Agency Air Quality System Raw Data Report, 2009 – 2012, dated July 2, 2013 20. Letter from Janice K. Brewer, Governor of Arizona, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated September 25, 2013 21. Letter (with enclosure) from Eric C. Massey, Director, Air Quality, ADEQ, to Jared Blumenfeld, Regional Administrator, U.S. Environmental Protection Agency, Region 9, dated October 4, 2013 . Enclosure entitled “Te chnical Support Document – Relationship Between Ambient Sulfur Dioxide an d Lead Conc e n trations – Hayden, A rizona,” dated August 23, 2013 22. Memorandum “Review of Laboratory Procedures to Address Accuracy Concerns for Inter
Laboratory Bias for the Asarco Supe rfund Site,” from Joe Eidelberg and Mathew Plate, to Gwen Yoshimu ra and John Hillenbrand, U.S. Environmental Protection Agency, Re g i on 9 . March 3 1, 2014 23. U.S. Environmental Protection Agency Air Quality System Raw Data Report, 2010
- 2014, dated March 31, 2014 24. Final Report, Technical System Audit, ASARCO Hayden Plant Site, Ambient Air Monitoring Program, January 22 – January 28, 2014. April 2014 25. Asarco monitors – raw data (July 3, 2013 – December 6, 2013), April 10, 2014 26. U.S. Environmental Protection Ag ency Air Quality System
- 2012 Design Value Report, dated April 14, 20144

27. U.S. Environmental Protection Agency, Region 9 Techn ical Support Document entitled “ Hayden Arizona – Redesignation to Nonattainment for the 2008 Lead National Ambient Air Quality Standard,” April 2014 **CATEGORY IV**  **. F**  **ederal R** **egister Notices** 1. 57 FR 13498, April 16, 1992 2. 58 FR 67748 , December 22, 1993 3. 73 FR 66964, November 12, 2008 4. 75 FR 35520, June 22, 2010 5. 75 FR 39254, July 8, 2010 6. 75 FR 71033, November 22, 2010 7. 76 FR 36042, June 21, 2011 8. 76 FR 72097, November 22, 2011 9. 78 FR 47191, August 5, 2013
**CATEGORY V.**  **Additional Materials Considered for the Final Rule** 1. 75 FR 81126, December 27, 2010. 2. Final Phase II Remedial Investigation/Feasibility Study (RI/FS) Work Plan, Part 1 of 2 – Air. ASARCO Hayden Plant Site, pages 5
- 1 and 5
- 2. March 2012. 3. Addendum, signed by Scott Mathias on August 10, 2012, to memorandum entitled “2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS) Implementation Questions and Answers” dated July 8, 2011” signed by Scott Mathias, Interim Director, Air Quality Policy Division, Office of Air Quality Planning and Standards, U.S. EPA. 4. Letter from Eric L. Hiser, Law Offices of Jorden Bischoff & Hiser, P.L.C., Counsel for ASARCO, to Balaji Va idyanathan, Air Permit Section Manager, ADEQ, Re: Proposed Converter Aisle Retrofit Project; ASARCO LLC – Hayden Operations – Operating Permit No. 1000042, dated September 26, 2012. 5. 2013 Converter Aisle Retrofit Project Application; Attachment C
- Emissio ns Analysis5

6. Letter from Jared Blumenfeld, Regional Administrator, U.S. EPA Region 9, to Janice Brewer, Governor of Arizona, dated April 21, 2014 . 7. Letter from Eric C. Massey, Air Quality Division Director, ADEQ, to Meredith Kurpius, U.S. EPA, dated May 30, 2014. 8. Letter from Dr. Krishna Parameswaran, Director – Environmental Services & Compliance Assurance, Environmental Affairs Department, ASARCO LLC, to Ginger Vagenas, U.S. EPA Region 9, dated June 2, 2014 . 9. Data from ASARCO monitors, June 3, 2014. 10. Letter from Henry R. Darwin, Director, Arizona Department of Environmental Quality, to Jared Blumenfeld, Regional Administrator, U.S. EPA, Region 9, dated June 20, 2014. 11. ADEQ data pulled from AQS on July 3, 2014. 12. Letter from Deborah Jordan, Air Division Director, U.S. EPA, Region 9, to Henry R. Darwin, Director, Arizona Department of Environmental Quality, dated August 20, 2014.
**CATEGORY VI. Final Rule**  1. “Designation of Areas for Air Quality Planning Purposes; State of Arizona; Pinal County and Gila County; Pb ; Final Rule” signed August 20 , 2014 (prepublication version) 2. “Designation of Areas for Air Quality Planning Purposes; State of Arizona; Pinal County and Gila County; Pb ; Final Rule.” 79 FR 52205; September 3, 2014. 3. “Designation of Areas for A ir Quality Planning Purposes; State of Arizona; Pinal County and Gila County; Pb ; Correction.” 79 FR 56962; September 24, 2014