**List of Other Documents**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 NGS Proposal_Pre-publication Signed Version 2 Technical Support Document for NGS Proposal 3 Docket Index**Index for References Cited in Navajo Generating Station Proposed Rulemaking**

**EPA-R09-OAR-2013-0009 Federal Register Notice** 

**Footnote Number**  **Document Name as referenced in FRN**

1 Grand Canyon Annual Visitation (pdf) available through https://irma.nps.gov/Stats/. 2 (1) Central Arizona Project (CAP) information available at http://www.usbr.gov/projects/Project.jsp?proj_Name=Central+Arizona+Project. (2) National Renewable Energy Lab (NREL) report (NREL report), Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts, March 2012 revision 3 CAP Info available at http://www.cap-az.com/ 4 Section 4 of NREL Report 5 Section 6 of NREL Report 6 Section 6 of NREL Report 7 Section 6 of NREL Report 8 Protecting Visibility in National Parks and Wilderness Areas, Committee on Haze

in National Parks and Wilderness Areas, National Research Council, National Academy Press (1993). 9 Explanatory text - Not a document 10 Protecting Visibility in National Parks and Wilderness Areas, Committee on Haze

in National Parks and Wilderness Areas, National Research Council, National Academy Press (1993). 11 Explanatory text - Mentions See 77 FR 51620 (August 24, 2012) 12 Timeline of All Tribal Consultations on NGS 13 March 12, 2012 letter from four owners of NGS to EPA regarding Pending BART Determination for Navajo Generating Station 14 California carbon dioxide emission perfomance standard available at http://www.energy.ca.gov/emission_standards/ 15 2012 Draft Integrated Resource Plan Executive Summary available at

https://www.ladwp.com/ladwp/faces/wcnav_externalId/a-p-doc?_adf.ctrlstate=a8ti68apu_29&_afrLoop=234058941927000. 16 Table 1-3, page 13 of NREL Report 17 Table 1-3, page 13 of NREL Report 18 Email and attachment from Letty Belin, DOI to Janet McCabe, EPA, August 20, 2012. 19 Docket #: EPA-R09-OAR-2009-0598 on www.regulations.gov. 20 (1) March 2012 Revision to NREL Report and (2) Comments on NREL Report 21Navajo Generating Station and Clean-Energy Alternatives: Options for Renewables (NREL Report) June 2012 22 Joint Federal Agency Statement Regarding Navajo Generating Station, January 4, 2013 23 Navajo National Monument: A Place and its People, An Administrative History,

Hal K. Rothman, 1991, National Park Service, Chapter IV: “Land-Bound:” 1938- 1962, available at http://www.nps.gov/history/history/online_books/nava/adhi/adhi4e.htm.24 Air Quality in National Parks, 2008 Annual Performance & Progress Report, National Resource Report NPS/NRPC/ARD/NRR – 2009/151, September 2009, p. 30. 25 Air Quality in National Parks, 2008 Annual Performance & Progress Report,

National Resource Report NPS/NRPC/ARD/NRR – 2009/151, September 2009, Appendix B. 26 56 FR 50172 (October 3, 1991); 75 FR 10174 (March 5, 2010). 27 BART Analysis for the Navajo Generating Station Units 1 – 3, Prepared for Salt River Project – Navajo Generating Station by ENSR|AECOM, Document Number 05830-012-300, November 2007 [find date submitted to EPA]. 28 SRP Cost Study – Installation of Selective Catalytic Reduction (SCR) and

Baghouses at Navajo Generating Station, from Kevin Wanttaja to Anita Lee, August 18, 2010 and Attachment: Salt River Project – Navajo Generating Station Units 1, 2, 3 SCR and Baghouse Capital Cost Estimate Report, Prepared by Sargent

and Lundy, Project Number 12656-001, August 17, 2010 29 Updated Best Available Retrofit Technology Analysis, Navajo Generating Station,

from Kelly J. Barr, SRP to Deborah Jordan, EPA, January 20, 2012 30 Letter from Kelly J. Barr, SRP to Deborah Jordan, EPA, July 20, 2012 31 Updated Best Available Retrofit Technology Analysis, Navajo Generating Station,

from Kelly J. Barr, SRP to Deborah Jordan, EPA, January 20, 2012 32 Explanatory text - with reference to TSD for this proposed rulemaking. 33 77 FR 51619 (August 24, 2012) 34 77 FR 33021 (June 4, 2012) 35 Colorado Department of Public Health BART Determination for Public Service Company – Hayden Station, available at http://www.colorado.gov/cs/Satellite/CDPHE-AP/CBON/1251595092457 36 Explanatory text - Not a document 37 Explanatory text - Not a document 38 Explanatory text - Not a document 39 Conclusion from NREL report 40 The NREL analysis commissioned by DOI; Two studies by Harvey Economics, one

commissioned by SRP and the other commissioned by Gila River Indian Community; A study by Arizona State University commissioned by SRP. 41 Explanatory text - Not a document 42 Explanatory text - Not a document 43 Information Submitted to EPA from Black Mesa Water Coalition and To Nizhoni Ani 44 Page 22 of NREL report 45 EPA’s Ambient Air Quality Impact Report, October 2008 46 Agreement between Grand Canyon Trust and Salt River Project on NGS, November 19, 2008 47 Final PSD permit issued by EPA Region 9, November 20, 2008 48 EPA Control Cost Manual, Section 6, page 2-48, available at http://www.epa.gov/ttncatc1/dir1/c_allchs.pdf 49 Revised BART Analysis for the Navajo Generating Station Units 1-3, Appendix A,

ENSR Corporation, Document No. 05830-012-300, January 2009, Salt River Project, Tempe, AZ.50 CALMET/CALPUFF Protocol for BART Exemption Screening Analysis for Class I Areas in the Western United States, Western Regional Air Partnership (WRAP); Gail Tonnesen, Zion Wang; Ralph Morris, Abby Hoats and Yiqin Jia, August 15, 2006. Available on UCR Regional Modeling Center web site, BART CALPUFF Modeling, http://pah.cert.ucr.edu/aqm/308/bart.shtml 51Letter from Rick Cables (Forest Service R2 Regional Forester) and Corbin Newman (Forest Service R3 Regional Forester) to Deborah Jordan (EPA Region 9 Air Division Director), March 17, 2009 52 Interagency Workgroup On Air Quality Modeling (IWAQM) Phase 2 SummaryReport And Recommendations For Modeling Long Range Transport Impacts (EPA454/R-98-019), EPA OAQPS, December 1998, http://www.epa.gov/scram001/7thconf/calpuff/phase2.pdf 53 Mark E. Sather et al., 2008. "Baseline ambient gaseous ammonia concentrations in the Four Corners area and eastern Oklahoma, USA". Journal of Environmental

Monitoring, 2008, 10, 1319-1325, DOI: 10.1039/b807984f 54 Federal Land Managers’ Air Quality Related Values Work Group (FLAG) Phase I Report—Revised (2010), U.S. Forest Service, National Park Service, U.S. Fish and

Wildlife Service, October 2010, available at http://www.nature.nps.gov/air/Permits/flag 55 Pitchford, Marc, 2006, "New IMPROVE algorithm for estimating light extinction approved for use", The IMPROVE Newsletter, Volume 14, Number 4, Air Resource Specialists, Inc., available at http://vista.cira.colostate.edu/improve/Publications/news_letters.htm; Revised IMPROVE algorithm for Estimating Light Extinction from Particle Speciation Data,

IMPROVE, January 2006, available at http://vista.cira.colostate.edu/improve/publications/graylit/gray_literature.htm. 56 Regional Haze Regulations and Guidelines for Best Available Retrofit Technology (BART) Determinations, memorandum from Joseph W. Paisie, EPA OAQPS, July 19, 2006, p. 2. 57 Explanatory text - Not a document 58 Explanatory text - Not a document 59 BART Alternatives.xlsx 60 Explanatory text - Not a document 61 Timeline of All Tribal Consultations on NGS**Document Name in Docket on www.regulations.gov or document**

**ID number if already posted prior to final rule**
Grand Canyon Annual Visitation

(1) not posted to docket. See web link. (2) 2012-03 NREL Report

Not posted to docket. See web link. 2012-03 NREL Report 2012-03 NREL Report 2012-03 NREL Report 2012-03 NREL Report Not posted to docket. See web link.

Not posted to docket. See web link. Federal Register notices available through http://www.gpo.gov/fdsys/ 2013 Timeline of all tribal consultations on NGS 2012_0312_Letters from NGS Owners to EPA Not posted to docket. See web link.
LAWDP Final_2012-IRP-122812 2012-03 NREL Report 2012-03 NREL Report 2012-0820 email from DOI plus attachments

See web link. 2012-03 NREL Report and NREL-Comments-All-Final2012

2012-03 NREL Report 2013_0104 Joint Federal Agency Statement on NGS

Not posted to docket. See web link.AQ_Trends_in_Parks_2008-Final-Web

AQ_Trends_in_Parks_2008-Final-Web Federal Register notices available through http://www.gpo.gov/fdsys/
2007_11_SRP_BART Analysis Report for NGS

2010-08 NGS_Report_SCR_and_BH_Cost_Estimate_Rev_D

2012_0120 SRP Updates NGS BART Report 2012_0720 SNCR Letter from SRP to EPA 2012_0120 SRP Updates NGS BART Report
Federal Register notices available through http://www.gpo.gov/fdsys/ Federal Register notices available through http://www.gpo.gov/fdsys/ CO BART Analysis for Hayden 1-2

2012-03 NREL Report 2012-03 NREL Report; Letter 4-11-12 from SRP Harvey Economics Final Report; Harvey Economics Study for Gila River_all files;

2012_0202 Final ASU Report

2012_1120 BMT NGS Transition 2012-03 NREL Report EPA NGS AAQIR AZ 08-01 Signed GCT SRP Agreement 11.19.08 FINAL NGS PSD PERMIT AZ 08-01 Not posted to docket. See web link.
2009-01 NGS Revised BART ReportNot posted to docket. See web link.

See document 0016 in the docket for the ANPRM: EPA-R09-OAR2009-0598

Interagency Workgroup on Air Quality Modeling

Copyrighted material. Not posted to docket.

Not posted to docket. See web link.

Not posted to docket. See web link.

2006_07_19 EPA Memo on RH BART Determinations

BART Alternatives
2013 Timeline of all tribal consultations on NGS**Index for References Cited in Technical Support Document for Proposed Rulemaking on NGS**

**EPA-R09-OAR-2013-0009 Technical Support Document** 

**Footnote Number**  **Document Name as referenced in TSD**

1 40 CFR 49.11(a). 2 42 U.S.C. § 7491(g)(2). 3 BART Analysis for the Navajo Generating Station Units 1 – 3, Prepared for Salt River Project – Navajo Generating Station by ENSR|AECOM, Document Number 05830-012- 300, November 2007. 4 Source Specific BART Modeling Protocol: Navajo Generating Station by ENSR|AECOM, Document Number 05830-012-300, September 2007. 5 Revised BART Analysis for the Navajo Generating Station Units 1 – 3, Prepared for Salt River Project – Navajo Generating Station by ENSR|AECOM, Document Number 05830- 012-300, January 2009. 6 Best Available Retrofit Technology (BART) Analysis – Cost Information Navajo

Generating Station, from Kevin Wanttaja to Deborah Jordan, June 29, 2008, and Attachment: Salt River Project Navajo Generating Station, SCR and SNCR Cost Study, Final Report, Prepared by Sargent and Lundy, Project Number 11234-028, rev. 3, July 25, 2008. 7Letter from Kevin Wanttaja to Anita Lee re: May 7, 2009 Meeting on Navajo Generating Station Best Available Retrofit Technology Analysis, dated June 3, 2009. Attachment: Review of Background Ammonia Concentrations Used in Visibility Improvement Modeling for the Navajo Generating Station Regional Haze BART Analysis by Robert

Paine, AECOM Environment and Ivar Tombach, Consultant. 8 Conceptual Plan for Ammonia Monitoring in the Vicinity of the Navajo Generating Station, by Robert Paine, AECOM Environment and Ivar Tombach, Consultant, June 18, 2009. 9 Docket #: EPA-R09-OAR-2009-0598 10 SRP Cost Study – Installation of Selective Catalytic Reduction (SCR) and Baghouses at

Navajo Generating Station, from Kevin Wanttaja to Anita Lee, August 18, 2010. Attachment: Salt River Project – Navajo Generating Station Units 1, 2, 3 SCR and Baghouse Capital Cost Estimate Report, Prepared by Sargent and Lundy, Project Number 12656-001, August 17, 2010.The appendices to the report are not posted to

the docket and are available upon request. 11 Measurements of Ambient Background Ammonia on the Colorado Plateau and

Visibility Modeling Implications, Prepared by Salt River Project, Contributors: Ivar Tombach and Robert Paine, September 2010. Power Point presentation from SRP, September 28, 2010. 12 Additional Information Requested During Meeting on September 28, 2010 Best Available Retrofit Technology Determination – Navajo Generating Station, from Kevin

Wanttaja to Anita Lee, October 15, 2010. 13 Visibility Modeling using Upgraded CALPUFF Model – Salt River Project Navajo

Generating Station from Richard Hayslip to Anita Lee, February 22, 2011. 14 Updated Best Available Retrofit Technology Analysis, Navajo Generating Station, from

Kelly J. Barr, Esq., to Deborah Jordan, January 20, 2012.15 Letter from Angelina Cervantes, SRP to Scott Bohning, EPA, dated February 27, 2012. Transmittal of CD of modeling archive files for January 2012.The SRP modeling files are available upon request from EPA because these files cannot be posted to the electronic docket. 16 NGS Modeling Spreadsheet from Grant Smedley to Colleen McKaughan, February 28,

2012, and attachment to email: Navajo BART Emissions and Results from Jan 2012 Archive.xlsx. 17SNCR Cost Breakdown and Urea Cost Estimate from Grant Smedley to Anita Lee, March 16, 2012 and March 23, 2012. 18 Harvey Economics Report, from Kelly J. Barr, Esq., to Deborah Jordan, April 11, 2012. 19 SNCR Letter from Kelly J. Barr to Deborah Jordan, July 20, 2012. 20 See information on Senate Bill 1368 available from: http://www.energy.ca.gov/emission_standards/ 21 2012 Draft Integrated Resource Plan Executive Summary at

https://www.ladwp.com/ladwp/faces/wcnav_externalId/a-p-doc?_adf.ctrlstate=a8ti68apu_29&_afrLoop=234058941927000. 22 Email and attachment from Letty Belin, DOI to Janet McCabe, EPA, August 20, 2012 23 http://en3pro.com/projects/ngs-project/ 24 Letter from David J. Hayes, Deputy Secretary of the Interior, to Jared Blumenfeld, Regional Administrator, EPA Region IX, July 12, 2011. 25 Letter from Jared Blumenfeld to David J. Hayes, July 18, 2011. 26 Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts, David J. Hurlbut, Scott Haase, Gregory Brinkman, Kip Funk, Rachel Gelman, Eric Lantz, Christina Larney, David Peterson, Christopher Worley (NREL) and Ed Liebsch (HDR Engineering, Inc.), January 2012, NREL/TP-6A20-53024, produced under direction of the U.S. Department of the Interior under Interagency Agreement R11PG30024. Report and Compendium available at http://www.doi.gov/navajo-gss/index.cfm 27 Information from Reclamation to EPA

28Letter from Herbert C. Frost, Ph.D., Associate Director, National Resources Stewardship

and Science of the National Park Service, to Jared Blumenfeld, April 6, 2012. 29 Timeline of all tribal consultations on BART.docx 30 Letter from Edward F. Harvey to Linus Everling, General Counsel, Gila River Indian

Community re: Proposed EPA BART Changes to NGS dated November 16, 2011, plus attachment and letter from Edward F. Harvey to Linus Everling, re: Updated Impacts of EPA BART Changes at NGS on the GRIC- Revised Cost of Capital Assumption, dated March 15, 2012. 31 Agenda and handout from August 27, 2012 Tribal Consultation 32 Explanatory text - Not a document 33 See page 22 of NREL report. 34Joint Federal Agency Statement Regarding Navajo Generating Station, dated January 4, 2013 35 Explanatory text - Not a document 36 Explanatory text - Not a document 37 ENSR BART Analysis for SRP-NGS, page ES-1. 38 http://www.usbr.gov/projects//ImageServer?imgName=Doc_1303158888395.pdf 39 http://www.cap-az.com/ 40 See, for example, NREL report, page 9.41 42 U.S.C. 7491(b)(2)(A) & (g)

42 42 U.S.C. 7491(b)(2)(A) & (g) 43 Guidance for Estimating Natural Visibility Conditions Under the Regional Haze Rule,

U.S. Environmental Protection Agency", EPA-454/B-03-005, September 2003;

http://www.epa.gov/ttn/oarpg/t1pgm.html. 44 http://www.nps.gov/history/history/online_books/nava/adhi/adhi4e.htm. 45 Air Quality in National Parks, 2008 Annual Performance & Progress Report, National

Resource Report NPS/NRPC/ARD/NRR – 2009/151, September 2009, p. 30. 46 Explanatory text - Not a document 47 Explanatory text - Not a document 48 Final PSD permit issued by EPA Region IX dated November 20, 2008 49 2001 CAMD.xlsx”, “2002 CAMD.xlsx”, “2003 CAMD.xlsx”, “2004 CAMD.xlsx”, “2005

CAMD.xlsx”, “2006 CAMD.xlsx”, “2007 CAMD.xlsx”, “2008 CAMD.xlsx”, “2009 CAMD.xlsx”, “2010 CAMD.xlsx”, “2011 CAMD.xlsx”, and “2012 prelim CAMD.xlsx”
50Tab titled “Larger and better performers” in the spreadsheet titled “2011 CAMD.xlsx”. 51 Explanatory text - Not a document 52 77 FR 9304, February 16, 2012 53 Timeline of All Tribal Consultations on NGS 54 EPA Policy for the Administration of Environmental Programs on Indian Reservations (November 8, 1984) 55 Explanatory text - Not a document 56 See "2012 Sample Postcards re: NGS.pdf" in the docket for this proposed rulemaking. 57 Timeline of All Tribal Consultations on NGS 58 NREL report available at http://www.doi.gov/navajo-gss/index.cfm 59 NREL Alternatives chapter, available at http://www.nrel.gov/docs/fy12osti/54706.pdf 60Joint Federal Agency Statement Regarding Navajo Generating Station, January 4, 2013. 61 Letter from John Bunyak, National Park Service, to Deborah Jordan, EPA on July 24,

2009. Document number 0017 for ANPRM: EPA-R09-OAR-2009-0598. 62 Letter from Kelly Barr, Esq., SRP, to Dr. Deborah Jordan, EPA, regarding “Updated Best Available Retrofit Technology Analysis – Navajo Generating Station”, January 20, 2012, in the docket for this rulemaking. 63Page ES-2 of the BART Analysis for the Navajo Generating Station Units 1 – 3, Prepared for Salt River Project – Navajo Generating Station by ENSR|AECOM, Document Number 05830-012-300, November 2007. 64 Letter from Kelly J. Barr, SRP to Deborah Jordan, EPA dated July 20, 2012. 65 “NGS emissions and incremental costs” and “NGS_RHFIP_vis_tables.xlsx” 66 FMC PerNOxide Process: Example Case and Economics, January 19, 2012 67 Explanatory text - Not a document 68March 7, 2011 email from Stephen Guglielmo, Hitachi Power Systems America, to Anita Lee, EPA. 69 Explanatory text - Not a document 70 document 0236 in Four Corners Power Plant BART docket: EPA-R09-OAR-2010-068371Appendix Y to 40 CFR Part 51, “Guidelines for BART Determinations Under the Regional Haze Rule” IV.D.4.b. and IV.D.5.; “Regional Haze Regulations and Guidelines for Best Available Retrofit Technology (BART) Determinations; Final Rule”, 70 FR 39170, July 6, 2005 72The cost estimates presented in the November 2007 BART Analysis were amended in a July 29, 2008 letter from Kevin Wanttaja, Manager of Environmental Services at SRP to Deborah Jordan, EPA Region IX Air Division Director. Costs for LNB/SOFA were revised from $10 million to $14 million per unit, which would increase all total capital cost figures from the November 2007 BART Analysis by an additional $12 million. The cost estimates in Table 12 represent the revised costs for all control scenarios. These revised costs are reflected in AECOM’s January 2009 Revised BART Analysis for NGS.
73 Explanatory text - Not a document 74 http://epa.gov/ttn/catc/products.html#cccinfo 75 Letter dated October 28, 2009 from Benjamin Grumbles, ADEQ to EPA Docket Center.

See document 0124 in docket for ANPR: EPA-R09-OAR-2009-0583 76Letter dated March 1, 2010 from President Joe Shirley, Jr., Navajo Nation, to Anita Lee,

EPA. See document 0209 in docket for ANPR: EPA-R09-OAR-2009-0583 77 Letter dated March 1, 2010 from Chairman Leroy Shingoitewa, Hopi Tribal Council to Jared Blumenfeld, EPA. See document 0211 in docket for ANPR: EPA-R09-OAR-2009- 0583 78Letter dated July 24, 2009 from John Bunyak, National Park Service, to Deborah Jordan,

EPA. See document 0017 in docket for ANPR: EPA-R09-OAR-2009-0583 79 Letter dated October 28, 2009 from Richard Hayslip, Salt River Project, to Anita Lee,

EPA. See document 0219 in docket for ANPR: EPA-R09-OAR-2009-0583 80 See document titled “Email from Grant Smedley, SRP 3-16-12_plus attachments.pdf 81 Email from Grant Smedley, SRP 3-23-12 Urea cost breakdown.pdf 82 EPA Cost Analysis for NGS.xlsx 83 http://www.whitehouse.gov/omb/circulars_a004_a-4/#e 84 Explanatory text - Not a document 85 Table 3-6 and explanatory text, page 47 of NREL report 86 Three “updated NPS SCR modified cost manual approach” excel spreadsheets 87 Table 1-10 of the NREL report 88 http://www.whitehouse.gov/omb/circulars_a004_a-4/#e 89 Email from Anthony Favale, Hitachi Power Systems, America to Anita Lee, EPA, April 21, 2010. 90 Email from Stephen Guglielmo, Hitachi Power Systems America, to Anita Lee, EPA, March 7, 2011. 91 Explanatory text - Not a document 92 Explanatory text - Not a document 93 Explanatory text - Not a document 94 Explanatory text - Not a document 95 “Cost comparisons tab” in the spreadsheet titled “EPA cost analysis for NGS.xlsx” 96 “Least cost envelope” tab in spreadsheet titled “NGS emissions and incremental costs.xlsx” 97 NGS emissions and incremental costs.xlsx 98 Explanatory text - Not a document 99 70 FR at 39167 (July 6, 2005)100 Colorado BART Analysis for Craig Units 1-2

101 Colorado BART Analysis for Hayden 1-2 102 77 FR 33022 (June 4, 2012) 103 October 19, 2010 proposed FIP for Four Corners Power Plant (75 FR 64221) 104 EPA–R06–OAR–2010–0846-0128; October 22, 2011 final FIP for New Mexico (76 FR 52388) 105 Final PSD Permit for Coronado 106Permit Condition II.H.4.a of the January 21, 2009 Final permit for Coronado Generating Station. Significant Permit Revision Number #46236 107 77 FR 9304 (February 16, 2012) 108 Table 2 to Subpart UUUUU of Part 63, 77 FR at 9490, February 16, 2012 109 “Emissions Spreadsheet” and dated 12/16/11 on the following website:

http://www.epa.gov/ttn/atw/utility/utilitypg.html, or identical spreadsheet:

“mats_final_current_base_hap_inven.xlsx” 110 http://www.epa.gov/tri/tridata/index.html, or spreadsheet titled “NGS TRI 2010 data.xlsx” 111 Explanatory text - Not a document 112 Letter dated September 25, 2009 from James B. Martin, CDPHE to Laura Yoshii, EPA;

Document number 0071 in the docket for the ANPRM: EPA-R09-OAR-2009-0598 113Letter dated September 28, 2009 from Seth Cohen, Attorney General of New Mexico,to Anita Lee, EPA; Document number 0072 in the docket for the ANPRM: EPA-R09-OAR2009-0598. 114 Letter dated October 26, 2009 from Dean Martin, Arizona State Treasurer, to Laura Yoshii, EPA; Document number 0174 in the docket for the ANPRM: EPA-R09-OAR-2009- 0598. 115Letter dated October 13, 2009 from Janice Brewer, Arizona Governor, to Laura Yoshii, EPA; Document number 0078 in the docket for the ANPRM: EPA-R09-OAR-2009-0598. 116Letter dated March 1, 2010 from Joe Shirley, Jr., President, Navajo Nation, to Anita Lee, EPA; Document number 0209 in the docket for the ANPRM: EPA-R09-OAR-2009-0598. 117 Letter dated September 21, 2012 from Ben Shelly, President, Navajo Nation to Jared Blumenfeld, EPA; Follow up to August 7, 2012 Consultation on Proposed BART Rule for Navajo Generating Station. 118Letter dated March 1, 2010 from Leroy Shingoitewa, Chairman, Hopi Tribal Council, to Jared Blumenfeld, EPA; Document number 0211 in the docket for the ANPRM: EPA-R09- OAR-2009-0598. 119Letter dated March 1, 2010 from Ned Norris, Jr., Chairman, Tohono O’odham Nation,to Jared Blumenfeld, EPA; Document number 0212 in the docket for the ANPRM: EPAR09-OAR-2009-0598. 120 Letter dated March 1, 2010 from Robert Palmquist, Strickland & Strickland, General

Counsel to the Ak-Chin Indian Community, to Jared Blumenfeld, EPA; Document number 0214 in the docket for the ANPRM: EPA-R09-OAR-2009-0598. 121 Letter dated February 23, 2010 from William Rhodes, Governor, Gila River Indian

Community, to Jared Blumenfeld, EPA; Document number 0210 in the docket for the ANPRM: EPA-R09-OAR-2009-0598. 122Letter dated February 26, 2010 from Clinton Pattea, President, Fort McDowell Yavapai Nation, to Jared Blumenfeld, EPA 123Letter dated December 14, 2009, from Peter Yucupicio, Chairman, Pascua Yaqui Tribe, to Laura Yoshii, EPA, Document number 0237 in the docket for the ANPRM: EPA-R09- OAR-2009-0598.124 Letter dated May 20, 2011 from William Rhodes, Governor, Gila River Indian Community, to Lisa Jackson, EPA; letter dated July 14, 2011 from William Rhodes to Lisa Jackson; letter dated June 21, 2011 from William Rhodes to Colleen McKaughan, EPA; undated letter from Ben Shelly, President, Navajo Nation, to Gina McCarthy, EPA;

letter dated July 29, 2011 from Ben Shelly to Lisa Jackson 125Letters dated September 6, 2011 from Jared Blumenfeld, EPA, to Arizona tribal leaders 126 See document file sets titled “EPA Consultation with Tribes, 9-6-11”, and “EPA

Consultation with Tribes, 2-8-12”, and “EPA consultation with Tribes in August 2012” 127Letter dated September 21, 2011 from David Kwail, Chairman, Yavapai-Apache Nation, to Laura Yoshii, EPA 128 Letter dated October 14, 2011 from Louis Manuel, Jr., Chairman, Ak-Chin Indian Community to Janet McCabe, EPA 129 Report from EC/R Incorporated titled: “Ammonia Mobile Source Risk Estimates for Navajo Generating Station.pdf” 130 Report from EC/R Incorporated titled: “Ammonia Mobile Source Risk Estimates for Navajo Generating Station.pdf” 131 Springerville title V permit ADEQ 132 70 FR 39169 (July 6, 2005) 133 TSD Appendix C: Impact of Ammonia in Fly Ash on its Beneficial Use”; Document number 0006, in the docket for the proposed rulemaking for Four Corners Power Plant: EPA-R09-OAR-2010-0683 134 See Energy Strategies report: "Affordability Analysis for NGS BART Options.pdf", and

three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply projections". 135 Explanatory text - Not a document 136 “Impact Analysis of Proposed EPA BART Determination on NGS.xls”, Rate Impact Estimates worksheet 137 “Impact Analysis of Proposed EPA BART Determination on NGS.xls”, Rate Impact Estimates worksheet 138 Explanatory text - Not a document 139 Table 1-12 on page 19 of the NREL report 140 See Energy Strategies report: "Affordability Analysis for NGS BART Options.pdf", and

three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply projections". 141http://www.power-eng.com/articles/2013/january/ladwp-may-sell-share-in-coal-firedpower-plant-switch-another-to-natural-gas.html 142 mats_final_current_baseline_hap_inventory.xlsx 143 See Energy Strategies report: "Affordability Analysis for NGS BART Options.pdf", and

three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply projections". 144 Explanatory text - Not a document 145 Explanatory text - Not a document146 Letter from David Modeer, CAP to Colleen McKaughan, EPA, re: “Assessment of Anticipated Visibility Improvements at Surrounding Class I Areas and Cost Effectiveness of Best Available Retrofit Technology for Four Corners Power Plant and Navajo Generating Station: Advanced Notice of Proposed Rulemaking, Docket No. EPA-R09- 0AR-2009-0598 - Your Letter of November 25, 2009”. December 18, 2009. 147Presentation developed by Reclamation titled “Development Fund Power Point to EPA (2).pptx”, and “BOR Answers to EPA Questions (2).pdf” 148 Explanatory text - Not a document 149 Page 58 of the NREL report 150Footnote 12 of the December 18, 2009 letter to EPA detailing its expectation that after

2012 when a bond indenture expires, it expects NGS surplus power sales to generate $50 million or more towards its $55 million annual repayment obligation. 151 Page 55 of NREL study 152 Letter from David V. Modeer, CAP, to David J. Hayes, DOI and Jared Blumenfeld, EPA,

re: Comments on the National Renewable Energy Laboratory (NREL) Report, Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts (the “Report”), February 23, 2011 153Letter from William R. Rhodes, Gila River Indian Community to Jared Blumenfeld, EPA, re: Gila River Indian Community’s Comments on ANPR. February 23, 2010. Document

number 0210 in ANPR docket: EPA-R09-OAR-2009-0598 154 Page 103 of NREL report 155Letter from Robert F. Palmquist, Strickland & Strickland, P.C. to Jared Blumenfeld, EPA,

re: Comments by Ak-Chin Indian Community on ANPR. March 1, 2010. Document

number 0214 in ANPR docket: EPA-R09-OAR-2009-0598 156 From February 13, 2012 conference call between Reclamation and EPA.

157Letter from Dr. Ned Norris, Jr., Tohono O’odham Nation to Jared Blumenfeld, EPA, re:

Tohono O’odham Comments on ANPR. March 1, 2010. Document number 0212 in

ANPR docket: EPA-R09-OAR-2009-0598 158 Page 103 of NREL report 159 Page 103 of NREL report 160 Page 102 of NREL report 161 Page 103 of NREL report 162Letter dated December 14, 2009, from Peter Yucupicio, Chairman, Pascua Yaqui Tribe, to Laura Yoshii, EPA, Document number 0237 in the docket for the ANPRM: EPA-R09- OAR-2009-0598. 163 Page 104 of NREL report 164 Timeline of All Tribal Consultations on NGS 165 Letters from Edward F. Harvey, Harvey Economics, to Linus Everling, Gila River Indian

Community Law Office, re: Proposed EPA BART Changes at NGS. November 16, 2011 and updated on March 15, 2012. 166 Table on page 27 of the March 15, 2012 Updated Harvey Economics Letter to Gila River Indian Community on NGS Impacts 167Letter from Louis J., Manuel, Jr. Ak-Chin Indian Community, to Janet McCabe, EPA, re:

Navajo Generating Station Proposed Air Quality Regulations and the Federal Trust

Responsibility. October 14, 2011. 168Letter from Dr. Ned Norris, Jr., Tohono O’odham Nation to Jared Blumenfeld, EPA, re:

Tohono O’odham Comments on ANPR. March 1, 2010. Document number 0212 in

ANPR docket: EPA-R09-OAR-2009-0598 169 Page 104 of the NREL report170 66 FR 21086 (April 27, 2001)

171 Page 104 of the NREL report 172Navajo-Hopi Little Colorado River Water Rights Settlement Act of 2012, S.2109, 112th

Congress, 2D Session, February 14, 2012. Information also available at

http://www.govtrack.us/congress/bills/112/s2109 173 http://www.govtrack.us/congress/bills/112/s2109 174 Page 103 of NREL report 175 Page 104 of the NREL report 176 CAP Comments on NREL Report to DOI and EPA 177 August 10, 2010 letter from Tempe Farming Co. to EPA 178 See Energy Strategies report: "Affordability Analysis for NGS BART Options.pdf", and

three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply projections". 179 2012_0202 Final ASU Report.pdf 180 Explanatory text - Not a document 181 Part 71 Operating Permit (Permit # NN-ROP-05-06) issued by the Navajo Nation Environmental Protection Agency, dated July 3, 2008 182 EPA’s Ambient Air Quality Impact Report, dated October 2008 183 Agreement between Grand Canyon Trust and Salt River Project on NGS dated November 19, 2008 184 Final PSD permit issued by EPA Region IX dated November 20, 2008 185 NGS emissions and incremental costs.xlsx 186Regional Haze Rule Summary data, Revised (New) IMPROVE Algorithm, Means for Best, Middle, and Worst 20% Visibility Days, http://vista.cira.colostate.edu/improve/Data/IMPROVE/summary_data.htm; “measured_vis_table_old_IMPROVE.doc”; and data/calculations in “group_means_NE_11_09_NGS_2006-2008.xls” 187 Explanatory text - Not a document 188 Explanatory text - Not a document 189 Explanatory text - Not a document 190 http://vista.cira.colostate.edu/improve/ 191 Pitchford, Marc, 2006, “New IMPROVE algorithm for estimating light extinction

approved for use”, The IMPROVE Newsletter, Volume 14, Number 4, Air Resource Specialists, Inc.; web page: http://vista.cira.colostate.edu/improve/Publications/news_letters.htm direct link: http://vista.cira.colostate.edu/improve/Publications/NewsLetters/IMPNews4thQtr200 5.pdf
192 NGS RHFIP TSD_vis_tables 193 “Regional Haze Regulations and Guidelines for Best Available Retrofit Technology

(BART) Determinations”, memorandum from Joseph W. Paisie, EPA OAQPS, July 19, 2006, p.2 194Table 2-1 of Guidance for Estimating Natural Visibility Conditions Under the Regional Haze Rule, U.S. Environmental Protection Agency, EPA-454/B-03-005, September 2003, on web page http://www.epa.gov/ttn/oarpg/t1pgm.html, with direct link http://www.epa.gov/ttn/oarpg/t1/memoranda/rh_envcurhr_gd.pdf; 195 EPA_avg_natural_bg.xls196 Federal Land Managers’ Air Quality Related Values Work Group (FLAG) Phase I Report—Revised (2010), U.S. Forest Service, National Park Service, U.S. Fish And Wildlife Service, October 2010. Often referred to as “FLAG 2010”. See http://www.nature.nps.gov/air/Permits/flag/ Direct link: http://www.nature.nps.gov/air/Pubs/pdf/flag/FLAG_2010.pdf 197 BART Guidelines, 70 FR 39125, July 6, 2005. 198Source Specific BART Modeling Protocol: Navajo Generating Station by ENSR|AECOM, Document Number 05830-012-300, September 2007. 199“CALMET/CALPUFF Protocol for BART Exemption Screening Analysis for Class I Areas in the Western United States”, Western Regional Air Partnership (WRAP); Gail Tonnesen, Zion Wang; Ralph Morris, Abby Hoats and Yiqin Jia, August 15, 2006. Available on UCR

Regional Modeling Center web site, BART CALPUFF Modeling, http://pah.cert.ucr.edu/aqm/308/bart.shtml 200 Explanatory text - Not a document 201 ENSR/AECOM report dated November 2008 202 U.S. Environmental Protection Agency, EPA-454/B-03-005, September 2003, on web

page http://www.epa.gov/ttn/oarpg/t1pgm.html, with direct link http://www.epa.gov/ttn/oarpg/t1/memoranda/rh_envcurhr_gd.pdf 203 Explanatory text - Not a document 204 Explanatory text - Not a document 205 Electric Power Research Institute, Estimating Total Sulfuric Acid Emissions from

Stationary Power Plants, 1016384, Technical Update, March 2008. 206 Explanatory text - Not a document 207 Explanatory text - Not a document 208 Interagency Workgroup On Air Quality Modeling (IWAQM) Phase 2 Summary Report

And Recommendations For Modeling Long Range Transport Impacts (EPA-454/R-98- 019), EPA OAQPS, December 1998, http://www.epa.gov/scram001/7thconf/calpuff/phase2.pdf 209 Personal communication, Rick Graw, USDA Forest Service to Scott Bohning, EPA, February 2, 2009. 210 Interagency Monitoring of Protected Visual Environments http://vista.cira.colostate.edu/improve/ 211 Explanatory text - Not a document 212 Explanatory text - Not a document 213Mark E. Sather et al., 2008. “Baseline ambient gaseous ammonia concentrations in the Four Corners area and eastern Oklahoma, USA”. Journal of Environmental Monitoring,

2008, 10, 1319-1325, DOI: 10.1039/b807984f 214 Explanatory text - Not a document 215 Explanatory text - Not a document 216Stationary Source NOx and PM Emissions in the WRAP Region: An Initial Assessment of

Emissions, Controls, and Air Quality Impacts – Final Report of the WRAP Market Trading Forum. October 1, 2003. http://www.wrapair.org/forums/mtf/nox-pm.html. 217Letter dated October 28, 2009 from Benjamin Grumbles, ADEQ to EPA Docket Center.

See document 0124 in docket for ANPR: EPA-R09-OAR-2009-0583 218 IWAQM Phase 2 document, section 2.2.2, p.14 219 Explanatory text - Not a document 220 Measurements of Ambient Background Ammonia on the Colorado Plateau and

Visibility Modeling Implications, Prepared by Salt River Project, Contributors: Ivar Tombach and Robert Paine, September 2010. Power Point presentation from SRP, September 28, 2010. 221 Document IDs 0017 and 0036 in the ANPRM docket: EPA-R09-OAR-2009-0598222Hardman, R., R. Stacy, E. Dismukes. Estimating Total Sulfuric Acid Emissions from CoalFired Power Plants. Southern Company Services, Revised September 1998. 223 APS Comments on ANPRM (See EPA-R09-OAR-2009-0598-0195). 224 Harrison, K.E., L.S. Monroe, J.E. Cichanowicz, Estimating Total Sulfuric Acid Emissions from Stationary Power Plants: Revision 3 (2005). Southern Company Services, October 2005. 225 Email from Anthony Favale, Hitachi Power Systems, America to Anita Lee, EPA, April 21, 2010. 226 SRP comment letter on 2009 ANPRM 227 Electric Power Research Institute, Estimating Total Sulfuric Acid Emissions from

Stationary Power Plants, Version 2010a, 1020636, Technical Update, April 2010. 228 Explanatory text - Not a document 229 Salt River Project Navajo Generating Station – Acid Mist Emissions Test Report by

Catalyst Air Management, Inc. Report Number 264-001 (December 31, 2009). 230 Explanatory text - Not a document 231 Explanatory text - Not a document 232 Comments submitted by Eladio Knipping, EPRI dated October 26, 2009 233 Explanatory text - Not a document 234 Explanatory text - Not a document 235 Explanatory text - Not a document 236 IWAQM Phase 2 document, section 2.2.2, p.14 237 IWAQM Phase 2 document, section 2.2.2, pp.14-15 238 Measurements of Ambient Background Ammonia on the Colorado Plateau and

Visibility Modeling Implications, Prepared by Salt River Project, Contributors: Ivar Tombach and Robert Paine, September 2010. Power Point presentation from SRP, September 28, 2010. 239 Explanatory text - Not a document 240 Christopher M. B. Lehmann et al., “Monitoring Long-term Trends in Sulfate and

Ammonium in US Precipitation: Results from the National Atmospheric Deposition Program / National Trends Network”, Water, Air, & Soil Pollution: Focus, Volume 7,

Numbers 1-3, March, 2007, DOI:10.1007/s11267-006-9100-z 241 “NH3_scenarios_ANPRM.xls” and “NO3_compare_ANPRM.xls”. 242“Technical Support Document, Proposed Rule: Source Specific Federal Implementation Plan for Implementing Best Available Retrofit Technology for Four Corners Power Plant: Navajo Nation”, Docket Number: EPA-R09-OAR-2010-0683. EPA Region 9, October 10, 2010. 243 Electric Power Research Institute, Estimating Total Sulfuric Acid Emissions from

Stationary Power Plants, Version 2010a, 1020636, Technical Update, April 2010. 244 “Estimating Ammonia Emissions from Stationary Power Plants”, Electric Power

Research Institute (EPRI), Palo Alto, CA: 2009, Report No. 1017985. http://my.epri.com/portal/server.pt?Abstract_id=000000000001017985 245 NGS_BART_Scenarios_Emissions_EPA_proposal.xls 246 Explanatory text - Not a document 247 NGS_RHFIP_TSD_vis_tables.xlsx 248 Explanatory text - Not a document 249 Timeline of Consultation and Correspondence on Navajo BART FIPs 250 Joint Federal Agency Statement Regarding Navajo Generating Station251 Recommendation for Just Transition of the Navajo Generating Station and Peabody Coal Mines for the Black Mesa to Tribal Renewable Energy Project at Black Mesa**Document Name in Docket on www.regulations.gov or**

**document ID number if already posted prior to final rule** Available through http://www.gpo.gov/fdsys/ Available through http://www.gpo.gov/fdsys/
In document list for FR References.
2007-09 SRP-NGS Modeling Protocol

In document list for FR References.

2008-07 SRP letter Cost Info for NGS

2009-06-3 NGS letter follow up to May meeting

2009-06-18 Draft Conceptual Ammonia Monitoring Plan

see docket in www.regulations.gov

In document list for FR References.

2010-09 NH3 monitoring report and presentation

2010-10 NGS NH3 Follow up

2011_0224 CALPUFF6.4 Report

In document list for FR References.2012_0227 Letter modeling archive

2012_0228 Attachment to Email from G Smedley 2012_0316 Email from Grant Smedley; 2012_0323 Email

from Grant Smedley In document list for FR References. In document list for FR References. Not in docket. See web link.

In document list for FR References.

In document list for FR References. Not in docket. See web link. 2011_0712 DOI.Hayes to Blumenfeld 2011_0718 EPA Letter to DOI

In document list for FR References.

BOR Presentation to EPA - BOR Answers to EPA Questions; BOR Presntation to EPA - Development Fund Power point

2012_0406 NPS Letter to EPA

In document list for FR References.

In document list for FR References.

In document list for 08-2012 Consultations
In document list for FR References. In document list for FR References.

In document list for FR References. Not in docket. See web link. Not in docket. See web link. In document list for FR References.Available through http://www.gpo.gov/fdsys/

Available through http://www.gpo.gov/fdsys/
Not in docket. See web link.
Not in docket. See web link.
In document list for FR References.

In document list for FR References. 2001 CAMD.xlsx”, “2002 CAMD.xlsx”, “2003 CAMD.xlsx”, “2004 CAMD.xlsx”, “2005 CAMD.xlsx”, “2006 CAMD.xlsx”, “2007 CAMD.xlsx”, “2008 CAMD.xlsx”, “2009 CAMD.xlsx”, “2010 CAMD.xlsx”, “2011 CAMD.xlsx”, and “2012 prelim

CAMD.xlsx” 2011 CAMD.xlsx
Available through http://www.gpo.gov/fdsys/ In document list for FR References. Indian Policy 1984

2012 Sample Postcards re: NGS In document list for FR References. In document list for FR References. 2012_06 Final Chapter NREL Alternatives
In document list for FR References. see document number 0017 in docket in www.regulations.gov
In document list for FR References.

In document list for FR References.
In document list for FR References. NGS emissions and incremental costs.xlsx; and

NGS_RHFIP_vis_tables.xlsx See 2012_0119 PerNoxide presentation to EPA parts 1 and 2

2011_0307 Email from Stephen Guglielmo to Anita Lee

see docket in www.regulations.govAvailable through http://www.gpo.gov/fdsys/

In document list for FR References.

Not in docket. See web link. see docket in www.regulations.gov
see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov
2012_0316 Email from Grant Smedley 2012_0323 Email from Grant Smedley EPA Cost Analysis for NGS.xlsx Not in docket. See web link. 2012-03 NREL report 2011_0927 Emails from NPS to NREL on cost estimates (and _2, _3) 2012-03 NREL report Not in docket. See web link. 2010_0421 Email from Hitachi to EPA 2011_0307 Email from Stephen Guglielmo to Anita Lee

EPA cost analysis for NGS.xlsx
NGS emissions and incremental costs.xlsx NGS emissions and incremental costs.xlsx Available through http://www.gpo.gov/fdsys/CO BART Analysis for Craig 1-2 In document list for FR References. Available through http://www.gpo.gov/fdsys/ Available through http://www.gpo.gov/fdsys/ Available through http://www.gpo.gov/fdsys/

Coronado PSD permit Coronado PSD permit Available through http://www.gpo.gov/fdsys/ Available through http://www.gpo.gov/fdsys/ mats_final_current_base_hap_inven.xlsx

NGS 2010 TRI data

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov

see docket in www.regulations.gov
2010_0226 Letter Fort McDowell
see docket in www.regulations.govIn document list for Correspondence from Tribes.

In document list for Correspondence from Tribes. In document lists for "Docs from 9-6-11", "Docs from 2-8-

12", and "Docs from 8-12" 2011_0921 Yavapai Apache ANPR comment letter In document list for Correspondence from Tribes. Mobile Source Risk Estimate Report_30Jul2012 Mobile Source Risk Estimate Report_30Jul2012 Springerville title V permit ADEQ Available through http://www.gpo.gov/fdsys/ see docket in www.regulations.gov Affordability Analysis for NGS BART Options.pdf, and three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply

projections"
Mobile Source Risk Estimate Report_30Jul2012 Mobile Source Risk Estimate Report_30Jul2012

In document list for FR References. Affordability Analysis for NGS BART Options.pdf, and three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply

projections" Not in docket. See web link. mats_final_current_baseline_hap_inventory.xlsx Affordability Analysis for NGS BART Options.pdf, and three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply

projections"2009_1218 Modeer Letter to EPA

BOR Presentation to EPA - BOR Answers to EPA Questions; BOR Presntation to EPA - Development Fund Power point

In document list for FR References.
2009_1218 Modeer Letter to EPA

In document list for FR References.
In document list for Additional Correspondence

see docket in www.regulations.gov

In document list for FR References. see docket in www.regulations.gov
BOR Presentation to EPA - BOR Answers to EPA Questions; BOR Presntation to EPA - Development Fund Power point

see docket in www.regulations.gov
In document list for FR References. In document list for FR References. In document list for FR References. In document list for FR References. see docket in www.regulations.gov
In document list for FR References. In document list for FR References.
In document list for FR References.

In document list for FR References.
In document list for Correspondence from Tribes.

see docket in www.regulations.gov
In document list for FR References.Available through http://www.gpo.gov/fdsys/ In document list for FR References.
Not in docket. See web link.
Not in docket. See web link. In document list for FR References. In document list for FR References. In document list for Additional Correspondence 2010_0823 Letter Thelander Tempe Farming Affordability Analysis for NGS BART Options.pdf, and three excel spreadsheets titled "Model - NGS BART Affordability Analysis 01-16-13", "M&I User Consolidated water cost impact analysis", and "NIA - water use and supply

projections" In document list for FR References.

NGS Title V Permit In document list for FR References. In document list for FR References. In document list for FR References. NGS emissions and incremental costs.xlsx

NGS RHFIP TSD_vis_tables

Not in docket. See web link.

Not in docket. See web link.

NGS RHFIP TSD_vis_tables
In document list for FR References.

Not in docket. See web link.

EPA_avg_natural_bg.xlsNot in docket. See web link.

Available through http://www.gpo.gov/fdsys/ 2007-09 SRP-NGS Modeling Protocol

Not in docket. See web link.

In document list for FR References.
Not in docket. See web link.

See document number 0044 in EPA-R09-OAR-2010_0683

Not in docket. See web link.

Not in docket.
Not in docket. See web link.

Not in docket. Copyrighted material

Not in docket. See web link.

see docket in www.regulations.gov Not in docket. See web link.

2010-09 NH3 monitoring report and presentation
see docket in www.regulations.govSee document number 0045 in EPA-R09-OAR-2010_0683 see docket in www.regulations.gov See document number 0046 in EPA-R09-OAR-2010_0683
2010_0421 Email from Hitachi to EPA
See document number 0126 in EPA-R09-OAR-2009-0598
See document number 0048 in EPA-R09-OAR-2010_0683

2009_1231 NGS Acid Mist Generation report

See document number 0220 in EPA-R09-OAR-2009-0598

Not in docket. See web link. Not in docket. See web link.
2010-09 NH3 monitoring report and presentation

Not in docket. Copyrighted material

NH3_scenarios_ANPRM.xls and NO3_compare_ANPRM.xls.

see docket in www.regulations.gov

See document number 0048 in EPA-R09-OAR-2010_0683

Not in docket. See web link. NGS_em_EPA_2012May NGS_RHFIP_TSD_vis_tables.xlsx
Timeline of All Tribal Consultation on NGS In document list for FR References.In document list for FR References. Also 2012_1120 BMT N Aquifer and 2012_1120 NRDC Report**List of Correspondence from Tribes (Excludes correspondence from Tribes already listed as FRN or TSD References)**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 2010_0623 Mid-Year NCAI Resolution 2 2011_0520 Gila River Consultation Request 3 2011_0609 Salt River letter to Admin Jackson 4 2011_0621 Gila River Letter to R9 on Consultation Format 5 2011_0729 Navajo Nation Letter to EPA 6 2011_0808 Gila River Consultation request to Admin Jackson 7 2011_0914 Navajo Nation request for Consultation 8 2011_1014 Ak-Chin Consultation Request 9 2012_0815 Gila River Letter to EPA 10 2012_0821 Navajo Hardrock Chapter Letter to EPA 11 2012_0921 Navajo Consultation Follow Up Letter**List of Additional Correspondence (Excludes correspondence already listed as FRN or TSD References)**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 2007_0722 EPA Request for NGS BART Analysis 2 2007_0806 SRP Letter to EPA 3 2010_0211 Material from SRP Meeting 4 2010_0211 Sign in sheet from Meeting with SRP 5 2010_0217 Sierra Club Cost of Pollution Controls Sheet 6 2010_0303 Sign in Sheet from meeting with Clean Energy Groups 7 2010_0316 Letter from Clean Energy Group 8 2010_0407 Letter from Pinal County 9 2010_1027 Letter from CAP 10 2010_1120 Letter from Public_Tyrrell 11 2011_0414 Letter from Pinal County 12 2011_0418 Letter from Clean Energy Group 13 2011_0508 EPA Letter to Clean Energy Group 14 2011_0511 EPA Letter to Black Mesa Water Coalition 15 2011_0517 Letter from Congressman Markey 16 2011_0520 EPA response to Markey Letter 17 2011_0707 EPA response to Bravo information request 18 2011_1117 Letter from Black Mesa Water Coalition 19 2011_1222 EPA letter to Black Mesa 20 2011_1226 Letter from Black Mesa 21 2012_0202 Letter from AZ Legislature 22 2012_0213 Letter from Maricopa Irrigation District 23 2012_0216 EPA Letter to Secretary Chu 24 2012_0216 EPA Letter to Secretary Salazar 25 2012_0222 EPA Comments on NREL Study 26 0212_0223 CAP Comments on NREL Study 27 2012_0224 Letter from Representative Flake 28 2012_0308 Letter from CAP 29 2012_0316 Letter from Senators Kyl and McCain 30 2012_0320 Participant List for meeting with Gila River 31 2012_0316 Participant List for meeting with Maricopa Irrig. Dist 32 2012_0329 Participant List for meeting with SRP 33 2012_0406 DOI Response to CAP Letter 34 2012_0417 EPA Response to CAP Letter 35 2012_0510 Letter from City of Casa Grande 36 2012_0514 EPA Response to Representative Flake 37 2012_0614 EPA Response to Senator Kyl 38 2012_0614 EPA Response to Senator McCain 39 2012_0719 Letter from CAP 40 2012_1203 Email from Vincent Yazzie**List of Documents from MATS Webinar for Tribes on 10-6-2011**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 2011_1006 NGS IPM Presentation 2 Meeting Reminder Email**List of Documents from February 8, 2012 Meeting with Tribes**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 DOI Presentation to ITCA 2 EPA Presentation to ITCA on BART 3 EPA Presentation to ITCA on MATS 4 Sign In Sheet**List of Documents Related to June 30, 2011 Meeting with Tribes (this meeting was postponed to August 18, 2012)**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 Letter to San Juan Southern Paiute 2 Letter to Cocopah 3 Letter to Colorado River Indian Tribes 4 Letter to Salt River Pima Maricopa 5 Letter to Quechan 6 Letter Black Mesa Water Coalition 7 Letter to Havasupai 8 Letter to Yavapai-Prescott 9 Letter to NCAI 10 Letter to Yavapai-Apache 11 Letter to White Mountain Apache 12 Letter to Ak-Chin 13 Letter to Tohono O'odham 14 Letter to Fort McDowell 15 Letter to San Carlos Apache 16 Letter to Gila River 17 Letter to Kaibab 18 Letter to Navajo Nation 19 Letter to Hopi Tribe 20 Letter to Tonto Apache 21 Letter to Hualapai 22 Letter to Chemehuevi 23 Letter to Pasqua Yaqui 24 Attachment to Letter - Information Request on Water sources**List of Documents Related to September 16, 2011 Meeting with Tribes**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 2011_0804 EPA Letter to ITCA plus attachments 2 Letter to Ak-Chin 3 Letter to Cocopah 4 Letter to Colorado River Indian Tribes 5 Letter to Fort McDowell 6 Letter to Gila River 7 Letter to Havasupai 8 Letter to Hopi Tribe 9 Letter to Hualapai 10 Letter to Kaibab 11 Letter to Navajo Nation 12 Letter to Pasqua Yaqui 13 Letter to Quechan 14 Letter to Salt River Pima Maricopa 15 Letter to San Carlos Apache 16 Letter to Tohono O'odham 17 Letter to Tonto Apache 18 Letter to White Mountain Apache 19 Letter to Yavapai-Prescott 20 Letter to Yavapai-Apache**List of Documents Related to August 2012 Meetings with Tribes**

**EPA-R09-OAR-2013-0009**

**Number Document Name in www.regulations.gov**  1 2012_0802 Letter to Gila River 2 2012_0802 Letter to Navajo Nation 3 Agenda for August 27, 2012 Consultation 4 Letter to Ak-Chin 5 Letter to Chemehuevi 6 Letter to Cocopah 7 Letter to Colorado River Indian Tribes 8 Letter to Fort McDowell 9 Letter to Gila River 10 Letter to Havasupai 11 Letter to Hopi Tribe 12 Letter to Hualapai 13 Letter to ITCA 14 Letter to Kaibab 15 Letter to Navajo Nation 16 Letter to Pasqua Yaqui 17 Letter to Quechan 18 Letter to Salt River Pima Maricopa 19 Letter to San Carlos Apache 20 Letter to San Juan 21 Letter to Tohono O'odham 22 Letter to Tonto Apache 23 Letter to White Mountain Apache 24 Letter to Yavapai-Prescott 25 Letter to Yavapai-Apache 26 NGS Consultation handout