Document ID: EPA-R09-OAR-2011-0047-0002
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2012-08-03T04:00Z

INDEX TO DOCKET EPA-R09-OAR-2011-0047
             NEVADA INFRASTRUCTURE SIP FOR THE 1997 8-HOUR OZONE, 
                        1997 PM2.5 AND THE 2006 PM2.5 
                     NATIONAL AMBIENT AIR QUALITY STANDARD
                                (July 30, 2012)
                                       
                                 PROPOSED RULE

CATEGORY I	RULEMAKING DOCUMENTS

   1.       Proposed Rule, "Partial Approval and Disapproval of Air Quality Implementation Plans; Nevada; Infrastructure Requirements for Ozone and Fine Particulate Matter," signed July 20, 2012 (pre-publication version). 

   2.       EPA Region IX, "Technical Support Document: EPA Evaluation of Nevada Provisions for 1997 Ozone, 1997 PM2.5, and 2006 PM2.5 National Ambient Air Quality Standards for Sections 110(a)(2)(A) thru (C), Sections 110(a)(2)(D)(i)(II) and (D)(ii), Sections 110(a)(2)(E)(i) and (E)(iii), and Sections 110(a)(2)(F) thru (M)," July 2012. 

   3.       EPA Region IX, "Technical Support Document: Evaluation of EPA Evaluation of Nevada Provisions for Section 110(a)(2)(E)(ii)/Section 128," July 2012.

   4.       EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour PM2.5 National Ambient Air Quality Standard," July 2012. 

4.A   	EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour Fine Particulate (PM2.5) National Ambient Air Quality Standard, Appendix A  -  List of Nonattainment and Maintenance Receptors for 2006-2010," July 2012.

4.B 	EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour Fine Particulate (PM2.5) National Ambient Air Quality Standard, Appendix B  -  Nonattainment Receptors," July 2012. 

4.C	EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour Fine Particulate (PM2.5) National Ambient Air Quality Standard, Appendix C  -  Maintenance Receptors," July 2012.

4.D	EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour Fine Particulate (PM2.5) National Ambient Air Quality Standard, Appendix D  -  IMPROVE Monitoring Data," July 2012.

4.E 	EPA Region IX, "Technical Support Document for EPA's Proposed Action on the State of Nevada's 2009 Infrastructure State Implementation Plan (Transport Portion) for the 2006 24-hour Fine Particulate (PM2.5) National Ambient Air Quality Standard, Appendix E  -  Additional Technical Data for Greater Salt Lake Area, Utah and Butte, Montana," July 2012.

CATEGORY II 	STATE SUBMITTALS

   1. Letter from Leo M. Drozdoff, Administrator, Nevada Division of Environmental Protection (NDEP), "CAA 110(a)(2)(A)-(M) Requirements in the Current Nevada State Implementation Plan for 8-Hour Ozone" to Wayne Nastri, Regional Administrator, EPA Region 9, February 1, 2008 with enclosures.

   2. Letter from Leo M. Drozdoff, Administrator, NDEP, "CAA 110(a)(2)(A)-(M) Requirements in the Current Nevada State Implementation Plan for PM2.5" to Wayne Nastri, Regional Administrator, EPA Region 9, February 26, 2008 with enclosures. 

   3. Letter from Leo M. Drozdoff, Administrator, NDEP, "CAA 110(a)(2)(A)-(M) Requirements in the Current Nevada State Implementation Plan for PM2.5" to Laura Yoshii, Acting Regional Administrator, EPA Region 9, September 15, 2009 with enclosures. 

   4. Letter from Leo M. Drozdoff, Administrator, NDEP, "Current CAA 110(a)(2)(A)-(M) Requirements in Washoe County Portion of Nevada's PM2.5 infrastructure State Implementation Plan" to address 2006 24-hour PM2.5 national ambient air quality standard to Laura Yoshii, Acting Regional Administrator, EPA Region 9, December 4, 2009 with enclosures. 

   5. Letter from Colleen Cripps, Administrator, NDEP, "Revisions to Nevada's CAA § 110(a)(2)State Implementation Plan Submittals; Parallel Processing Request" to Jared Blumenfeld, Regional Administer, EPA Region 9, July 5, 2012.
      

CATEGORY III	INCORPORATION BY REFERENCE DOCUMENTS

[Reserved]

CATEGORY IV	OFFICIAL PUBLIC COMMENT ON THE NPRM

[Reserved]

CATEGORY V	OTHER DOCUMENTS

         1. A Legislative History of the Clean Air Act Amendments of 1977, 95th Congress 2d Session, Volume 3 at 526-527, August, 1978.

         2. Memorandum from David O. Bickart to Regional Air Directors, "Guidance to States for Meeting Conflict of Interest Requirements of Section 128," Suggested Definitions, March 2, 1978.

         3. Memorandum issued by Edward E. Reich, Director of the Division of Stationary Source Enforcement, "Clarification of Requirements for Inclusion of Continuous Emission Monitoring Provisions in State Implementation Plans," May 9, 1980. 

         4. "Agreement for Delegation of the Federal Prevention of Significant Deterioration Program by the United States Environmental Protection Agency, Region 9 to the Nevada Division of Environmental Protection," October 19, 2004.

         5. Consent Decree, Environmental Defense and American Lung Association (represented by Earthjustice)v. Johnson, March 10, 2005. 

         6. Memorandum issued by William T. Harnett, Director, Air Quality Policy Division, "Guidance for State Implementation Plan Submissions to Meet Current Outstanding Obligations Under Section 110(a)(2)(D)(i) for the 8-Hour Ozone and PM2.5 National Ambient Air Quality Standards," August 15, 2006. 

         7. U.S. EPA OAQPS "Guidance on the Use of Models and Other Analyses for Demonstrating Attainment of Air Quality Goals for Ozone, PM2.5 and Regional Haze" April, 2007

         8. Memorandum issued by William T. Harnett, Director, Air Quality Policy Division, "Guidance on SIP Elements Required Under Sections 110(a)(1) and (2) for the 1997 8-hour Ozone and PM2.5 National Ambient Air Quality Standards (NAAQS)," October 2, 2007. 

         9. "Agreement for Delegation of the Federal Prevention of Significant Deterioration Program by the United States Environmental Protection Agency, Region 9 to the Washoe County District Health Department", March 13, 2008.

         10. "Agreement for Delegation of the Federal Prevention of Significant Deterioration Program by the United States Environmental Protection Agency, Region 9 to the Nevada Division of Environmental Protection," September 15, 2009.

         11. Memorandum issued by William T. Harnett, Director, Air Quality Policy Division, "Guidance on SIP Elements Required Under Sections 110(a)(1) and (2) for the 2006 24-Hour Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS)," September 25, 2009.

         12. Letter from Colleen Cripps, Administrator, NDEP, transmitting Clark County Ozone Redesignation Request and Maintenance Plan to Jared Blumenfeld, Regional Administer, EPA Region 9, April 11, 2011. The Letter contains link to entire submittal. 

         13. Comments by Midwest Environmental Defense Center to EPA Region 5, dated May 31, 2011. 

         14. NDEP Bureau of Air Quality Planning, "Ambient Air Network Monitoring Plan," 2011.

         15. Clark County Department of Air Quality and Environmental Management "Annual Network Plan Report," June 2011

         16. Washoe County Air Quality Management Division, "2011 Ambient Air Monitoring Network Plan" July 1, 2011.

         17. Consent Decree, WildEarth Guardians and Sierra Club v. Jackson, No. 3:11-cv-00190-WHA (N.D.C.A.), entered October 20, 2011. 

         18. Letter from Matthew Lakin, Air Quality Analysis Office, U.S. EPA to Rob Bamford, Chief, Bureau of Air Quality Planning, NDEP, November 1, 2011.

         19. Letter from Matthew Lakin, Air Quality Analysis Office, U.S. EPA to Mike Sword, Engineering Manager, Clark County Department of Air Quality and Environmental Management, November 1, 2011.

         20. Letter from Matthew Lakin, Air Quality Analysis Office, U.S. EPA to Kevin Dick, Director, Air Quality Management Division, Washoe County Health District, November 1, 2011.

         21. Settlement Agreement between the Administrator of the United States Environmental Protection Agency and Sierra Club and WildEarth Guardians, No. 3:10-cv-04060-CRB (N.D. Cal), November 30, 2011.

         22. United States Environmental Protection Agency, Violation Day Count Report for 2006 24-hour PM2.5, July 9, 2012.

         23. United States Environmental Protection Agency, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Stationary Source Permits," (pre-publication version), July 13, 2012.

         24. Email from Mike Elges (NDEP) to Amy Zimpfer (EPA) regarding "NV Infrastructure SIP--Conflict of Interest Provisions," July 18, 2012.   

CATEGORY VI	FEDERAL REGISTER NOTICES

   1. 37 FR 10842, "Part 52 - Approval and Promulgation of Implementation Plans," May 31, 1972.

   2. 38 FR 12702, "Part 52 - Approval and Promulgation of Implementation Plans," May 14, 1973.

   3. 40 FR 13306, "Part 52 - Approval and Promulgation of Implementation Plans," March 26, 1975.

   4. 45 FR 46384, "Nevada State Implementation Plan Revision: Nevada Revised Statutes and the Emergency Episode Plan," July 10, 1980.

   5. 46 FR 43141, "Nevada State Implementation Plan Revision," August 27, 1981.

   6. 47 FR 26620, "Nevada; Approval and Promulgation of Implementation Plans," June 21, 1982.

   7. 48 FR 28271, "Prevention of Significant Deterioration; Delegation of Authority, State of Nevada," June 21, 1983. 

   8. 49 FR 11626, "Approval and Promulgation of Implementation Plans; Nevada State Implementation Plan Revision," March 27, 1984.

   9. 58 FR 51735, "Executive Order 12866," October 4, 1993.

   10. 59 FR 7629, "Executive Order 12898," February 16, 1994.

   11. 61 FR 38664, "Correction of Implementation Plans; American Samoa, Arizona, California, Hawaii and Nevada State Implementation Plans," July 25, 1996.

   12. 62 FR 19885, "Executive Order 13045," April 23, 1997.

   13. 62 FR 34641, "Correction of Implementation Plans; American Samoa, Arizona, California, Hawaii and Nevada State Implementation Plans," June 27, 1997.

   14. 62 FR 38652, "National Ambient Air Quality Standards for Particulate Matter," July 18, 1997. 

   15. 62 FR 38856, "National Ambient Air Quality Standard for Ozone," July 18, 1997.

   16. 63 FR 57356, "Finding of Significant Contribution and Rulemaking for Certain States in the Ozone Transport Assessment Group Region for Purposes of Reducing Regional Transport of Ozone," October 27, 1998.

   17. 64 FR 43255, "Executive Order 13132," August 10, 1999.

   18. 65 FR 67249, "Executive Order 13175," November 9, 2000.

   19. 66 FR 28355, "Executive Order 13211," May 22, 2001.

   20. 66 FR 63188, "Clean Air Act Full Approval of Title V Operating Permits Programs; Clark County Department of Air Quality Management, Washoe County District Health Department, and Nevada Division of Environmental Protection, Nevada," December 5, 2001

   21. 67 FR 80186, "Prevention of Significant Deterioration and Nonattainment New Source Review: Baseline Emissions Determination, Actual-to-Future-Actual Methodology, Plantwide Applicability Limitations, Clean Units, Pollution Control Projects," December 31, 2002.

   22. 68 FR 11323, "Approval and Promulgation of Implementation Plans; Prevention of Significant Deterioration," March 10, 2003.

   23. 68 FR 74489, "Approval and Promulgation of Implementation Plans; Prevention of Significant Deterioration," December 24, 2003.

   24. 69 FR 23858, "Air Quality Designations and Classifications for the 8-Hour Ozone National Ambient Air Quality Standards; Early Action Compact Areas With Deferred Effective Dates," April 30, 2004.

   25. 69 FR 34076, "Air Quality Designations and Classifications for the 8-Hour Ozone; National Ambient Air Quality Standards; Deferral of Effective Date," June 18, 2004.

   26. 69 FR 54006, "Approval and Promulgation of Implementation Plans; New Source Review; State of Nevada, Clark County Department of Air Quality and Environmental Management," September 7, 2004.

   27. 69 FR 55956, "Air Quality Designations and Classifications for the 8-Hour Ozone National Ambient Air Quality Standards; Las Vegas, NV Nonattainment Area," September 17, 2004.

   28. 69 FR 67062, "Corrections to the California State Implementation Plan," November 16, 2004.

   29. 70 FR 944, "Air Quality Designations and Classifications for the Fine Particles (PM2.5) National Ambient Air Quality Standards," January 5, 2005.

   30. 70 FR 25162, "Rule to Reduce Interstate Transport of Fine Particulate Matter and Ozone (Clean Air Interstate Rule); Revisions to Acid Rain Program; Revisions to the NOx SIP Call," May 12, 2005.

   31. 70 FR 68218, "Revisions to the Guideline of Air Quality Models: Adoption of a Preferred General Purpose (Flat and Complex Terrain) Dispersion Model and Other Revisions," November 9, 2005.

   32. 70 FR 71612, "Final Rule To Implement the 8-Hour Ozone National Ambient Air Quality Standard -- Phase 2; Final Rule To Implement Certain Aspects of the 1990 Amendments Relating to New Source Review and Prevention of Significant Deterioration as They Apply in Carbon Monoxide, Particulate Matter and Ozone NAAQS; Final Rule for Reformulated Gasoline," November 29, 2005.

   33. 71 FR 51766, "Revisions to the Nevada State Implementation Plan," August 31, 2006.

   34. 71 FR 61144, "National Ambient Air Quality Standards for Particulate Matter," October 17, 2006. 

   35. 71 FR 67061, "Notice of Resolution of Notice of Deficiency for Clean Air Operating Permits Program; Maricopa County, AZ," November 20, 2006.

   36. 71 FR 71486, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Monitoring and Volatile Organic Compound Rules," December 11, 2006.

   37. 71 FR 75690, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Excess Emissions Provisions," December 18, 2006.

   38. 72 FR 11, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Requests for Rescission," January 3, 2007

   39. 72 FR 19801, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Definition, Emergency Episode, and Monitoring Regulations," April 20, 2007.

   40. 72 FR 32526, "Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NSR): Removal of Vacated Elements," June 13, 2007.

   41. 72 FR 33397, "Revisions to the Nevada State Implementation Plan, Washoe County District Health Department," June 18, 2007.

   42. 72 FR 41629, "Approval and Promulgation of Implementation Plans; States of Arizona and Nevada; Interstate Transport of Pollution," July 31, 2007.

   43. 73 FR 16205, "Completeness Findings for Section 110(a) State Implementation Plans for the 8-hour Ozone NAAQS," March 27, 2008.

   44. 73 FR 20536, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Stationary Source Permits," April 16, 2008.

   45. 73 FR 28321, "Implementation of the New Source Review (NSR) Program for Particulate Matter Less Than 2.5 Micrometers (PM2.5)," May 16, 2008.

   46. 73 FR 62902, "Completeness Findings for Section 110(a) State Implementation Plans Pertaining to the Fine Particulate Matter (PM2.5) NAAQS," October 22, 2008.

   47. 74 FR 57051, "Approval and Promulgation of Implementation Plans; Corrections to the Arizona and Nevada State Implementation Plans," November 3, 2009.

   48. 74 FR 58688, "Air Quality Designations for the 2006 24-Hour Fine Particle (PM2.5) National Ambient Air Quality Standards," November 13, 2009.

   49. 75 FR 31514, "Prevention of Significant Deterioration and Title V Greenhouse Gas Tailoring Rule," June 3, 2010.

   50. 75 FR 42342, "Approval and Disapproval and Promulgation of Air Quality Implementation Plans; Colorado; Revisions to Regulation 1," July 21, 2010.

   51. 75 FR 45210, "Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone," August 2, 2010.

   52. 75 FR 59090, "Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of Nevada; Redesignation of Las Vegas Valley to Attainment for the Carbon Monoxide Standard," September 27, 2010

   53. 75 FR 77698, "Action To Ensure Authority To Issue Permits Under the Prevention of Significant Deterioration Program to Sources of Greenhouse Gas Emissions: Finding of Substantial Inadequacy and SIP Call," December 13, 2010.

   54. 75 FR 82536, "Limitation of Approval of Prevention of Significant Deterioration Provisions Concerning Greenhouse Gas Emitting Sources in State Implementation Plans; Final Rule," December 30, 2010.

   55. 76 FR 4540, "Approval and Disapproval and Promulgation of Air Quality Implementation Plans; Colorado; Revisions to Regulation 1," January 26, 2011.

   56. 76 FR 6056, "Additional Air Quality Designations for the 2006 24-Hour Fine Particle National Ambient Air Quality Standards, 110(k)(6) Correction and Technical Correction Related to Prior Designation, and Decisions Related to the 1997 Air Quality Designations and Classifications for the Annual Fine Particles National Ambient Air Quality Standards," February 3, 2011.

   57. 76 FR 17343, "Approval and Promulgation of Implementation Plans; Nevada; Determination of Attainment for the Clark County 8-Hour Ozone Nonattainment Area," March 29, 2011.

   58. 76 FR 21639, "Finding of Substantial Inadequacy of Implementation Plan; Call for Utah State Implementation Plan Revision," April 18, 2011.

   59. 76 FR 36450, "Approval and Promulgation of Air Quality Implementation Plans; State of Nevada; Regional Haze State Implementation Plan," June 22, 2011.

   60. 76 FR 48208, "Federal Implementation Plans: Interstate Transport of Fine Particulate Matter and Ozone and Correction of SIP Approvals," August 8, 2011.

   61. 76 FR 55577, "Findings of Failure to Submit a Complete State Implementation Plan for Section 110(a) Pertaining to the 2006 Fine Particulate Matter (PM2.5) NAAQS," September 8, 2011.

   62. 77 FR 17334 at 17339, "Approval and Promulgation of Air Quality Implementation Plans; State of Nevada; Regional Haze State Implementation Plan," March 26, 2012.

   63. 77 FR 21913, "Approval and Promulgation of State Implementation Plans; Hawaii; Infrastructure Requirements for the 1997 8-Hour Ozone and the 1997 and 2006 Fine Particulate Matter National Ambient Air Quality Standards," April 12, 2012.

   64. 77 FR 38557, "Approval and Promulgation of Implementation Plans; Revisions to the Nevada State Implementation Plan; Stationary Source Permits," June 28, 2012.

   65. 77 FR 43206, "Limited Approval and Disapproval of Air Quality Implementation Plans; Nevada; Clark County; Stationary Source Permits," July 24, 2012. 

CATEGORY VII	OTHER DOCUMENTS (TRANSPORT)

   1. South Coast Air Quality Management District, Final 2007 Air Quality Management Plan (AQMP) Appendix V Modeling and Attainment Demonstrations. 

   2. State of Idaho Department of Environmental Quality, "Idaho Area Designation Recommendations for the 2006 PM2.5 NAAQS," December 14, 2007.

   3. Great Basin Unified Air Pollution Control District, "Final 2008 Owens Valley PM10 Planning Area Demonstration of Attainment State Implementation Plan, Chapter 3  -  Air Quality Setting" January, 28, 2008.

   4. Great Basin Unified Air Pollution Control District, "Final 2008 Owens Valley PM10 Planning Area Demonstration of Attainment State Implementation Plan, Chapter 6  -  Air Quality Modeling," January, 28, 2008.

   5. Bay Area Air Quality Management District, "Sources of Bay Area Fine Particles," April 2008.

   6. Neil Frank, US EPA, Office of Air Quality Planning and Standards, "Availability of New Speciation Data for Some Areas that EPA Intends to Designate as Nonattainment," September 18, 2008.

   7. Neil Frank, US EPA, Office of Air Quality Planning and Standards, "Limited 2004-06 Speciation Data Derived from FRM Filters for Twenty Areas," September 18, 2008.

   8. Technical Support Document for the 2006 24-hour PM2.5 NAAQS Designations (74 FR 58688, November 13, 2009), "Area Designations for the 24-hour Fine Particle National Ambient Air Quality Standards - California," December 2008.

   9. Technical Support Document for the 2006 24-hour PM2.5 NAAQS Designations (74 FR 58688, November 13, 2009), "Area Designations for the 24-hour Fine Particle National Ambient Air Quality Standards  -  Utah and Utah-Idaho," December 2008.

   10. US EPA, Region 9, PM2.5 Air Quality Trends, 1999-2009.

   11. California Air Resources Board. 2009 Almanac Emission Projection Data  -  Butte County 2008 Estimated Annual Average Emissions, 2009.

   12. California Air Resources Board, 2009 Almanac Emission Projection Data  -  Sacramento County 2008 Estimated Annual Average Emissions, 2009.

   13. California Air Resources Board, 2009 Almanac Emission Projection Data  -  Sutter County 2008 Estimated Annual Average Emissions, 2009.

   14. Memorandum issued by William T. Harnett, Director, Air Quality Policy Division, "Guidance on SIP Elements Required Under Sections 110(a)(1) and (2) for the 2006 24-Hour Fine Particle (PM2.5) National Ambient Air Quality Standards (NAAQS)," September 25, 2009.

   15. Bay Area Air Quality Management District, "Fine Particulate Matter Data Analysis and Modeling in the Bay Area," October 2009.

   16. "Technical Support Document for Determination that the Cowtown Monitor is Ineligible for Comparison with the Annual PM2.5 NAAQS," U.S. EPA, Region 9, April 26, 2010.

   17. David Ogulei, PhD, PE, Washington State Department of Ecology, "Sources of Fine Particles in the Wapato Hills-Puyallup River Valley PM2.5 Nonattainment Area," April 2010. 

   18. Bay Area Air Quality Management District, "Evaluation of the Effectiveness and Benefits of the Wood Burning Rule in the San Francisco Bay Area for Winter of 2009-2010," May 2010.

   19. PM2.5 Speciation Data  -  Butte Montana, 2008-2010.

   20. Oregon Department of Environmental Quality, "Background on Air Quality in the Klamath Falls Nonattainment Area," Klamath Falls Advisory Committee, Item B, March 21, 2011. 

   21. Robert Kotchenruther, USEPA, Region 10, "Modeling for PM2.5 Attainment Demonstrations in EPA Region 10 (WA, ID. OR, & AK)- An Assortment of Proposed Models from CMAQ to Linear Rollback," June 10, 2011.

   22. US EPA, "Emissions Inventory Final Rule, TSD" Technical Support Document (TSD) for the Final Transport Rule, Docket No. EPA-HQ-OAR-2009-0491, June 28, 2011.

   23. Bay Area Air Quality Management District, "Trends in Bay Area Ambient Particulates," November 2011.

   24. EME Homer City Generation, L.P. v. EPA (No. 11-1302 and consolidated cases) (D.C. Circuit), December 30, 2011.

   25. South Coast Air Quality Management District, "Draft 2012 Air Quality Management Plan, Chapter 5  -  Future Air Quality," 2012.

   26. US EPA PM2.5 Design Values - 2008-2010, January 11, 2012.

   27. Bong-Mann Kim, South Coast Air Quality Management District, 2008 PM2.5 Air Quality Characterization- Scientific, Technical & Modeling Peer Review Advisory Group, January 19, 2012.

   28. Robert Kotchenruther, US EPA, Region 10, "Source apportionment modeling for multiple urban and rural PM2.5 chemical speciation sites within the Pacific Northwest  -  Draft," March 6, 2012. 

   29. US EPA, Region 10, "Source apportionment modeling for multiple urban and rural PM2.5 chemical speciation sites within the Pacific Northwest  -  Appendix A1," March 6, 2012.

   30. US EPA, Region 10, "Source apportionment modeling for multiple urban and rural PM2.5 chemical speciation sites within the Pacific Northwest  -  Appendix A2," March 6, 2012.

   31. Karen Magliano - California Air Resources Board, "Nature of PM2.5 in the San Joaquin Valley," April 27, 2012.

   32. Great Basin Unified Air District, Owens Lake Dust ID Network Map, Updated: May 16, 2012.

   33. Joe Cassmassi, South Coast Air Quality Management District, PM2.5 Preliminary Attainment Demonstration  -  Scientific, Technical & Modeling Peer Review Advisory Group Meeting for 2012 AQMP, June 14, 2012.

   34. US EPA, Brian Timin, Memo to file regarding CSAPR Daily Upwind Contribution, July 2012.