Tronox: Northern Agency Removal Site Evaluation Report

Northern Agency Tronox Mines FINAL Removal Site Evaluation (RSE) Report and appendices. Task Order (TO) 0001 of Response, Assessment, and Evaluation Services (RAES) contract EP-S9-17-03.

• Northern Agency Tronox Mines RSE Report (pdf) (38.51 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report. Task Order (TO) 0001 of Response, Assessment, and Evaluation Services (RAES) contract EP-S9-17-03.
• File Appendix A: Background Investigation Report (VERY LARGE FILE) (zip)
• Appendix B: X-Ray Fluorescence Data Evaluation Report (VERY LARGE FILE) (pdf) (74.97 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report Appendix B: X-Ray Fluorescence Data Evaluation Report. Response, Assessment, and Evaluation Services (RAES) Contract No. EP-S9-17-03. Task Order 0001.
• Appendix C: Gamma Correlation Report (pdf) (44.57 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report Appendix C: Gamma Correlation Report. Response, Assessment, and Evaluation Services (RAES) Contract No. EP-S9-17-03. Task Order 0001.
• Appendix D: Uranium Equilibrium Report (pdf) (3.48 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report Appendix D Uranium Equilibrium Report. Response, Assessment, and Evaluation Services (RAES) Contract No. EP-S9-17-03.
• Appendix E: Geotechnical Evaluation Report (pdf) (24.12 MB, October 10, 2019)
  This appendix summarizes the findings of the geotechnical investigation undertaken at the Northern Agency Tronox Mines as part of the 2018 removal site evaluation (RSE) investigation within the Navajo Nation.
• Appendix F: Geochemical Evaluation Report (pdf) (3.14 MB, October 10, 2019)
  This appendix is a summary of findings from the geochemical investigation undertaken at the Northern Agency Tronox Mines as part of the 2018 removal site evaluation ( RSE) investigation within the Navajo Nation. Samples were collected at 38 abandoned uranium mine (AUM) sites and 5 non-AUM target areas within the Northern Agency of the Navajo Nation located in Apache County, Arizona.
• Appendix G: Data Quality Assurance Summary Report (VERY LARGE FILE) (pdf) (54.11 MB, October 10, 2019)
  This Data Quality Assurance Summary Report presents procedures and results of the gamma scanning, chemical and radiological laboratory data, and radon data gathered during the removal site evaluations (RSE) at 39 abandoned uranium mine (AUM) sites and 36 Target sites within the Northern Agency AUM Region of the Navajo Nation.
• Appendix H: Site-Specific Removal Site Evaluation (SSRSE) Reports
  • SSRSE Reports 1-10 (VERY LARGE FILE) (zip)
  • SSRSE Reports 11-20 (VERY LARGE FILE) (zip)
  • SSRSE Reports 21-30 (VERY LARGE FILE) (zip)
  • SSRSE Reports 31-42 (VERY LARGE FILE) (zip)
• Appendix I: Non-Abandoned Uranium Mine (AUM) Target Sites Data Evaluation Report (VERY LARGE FILE) (pdf) (105.89 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report Appendix I: Non-Abandoned Uranium Mine (AUM) Target Sites Data Evaluation Report. Response, Assessment, and Evaluation Services (RAES) Contract No. EP-S9-17-03. Task Order 0001.
• Appendix J: Drainage Investigation Report (pdf) (69.32 MB, July 26, 2019)
  This Drainage Investigation Report is Appendix J to the Removal Site Evaluation (RSE) report for the Northern Agency Tronox Mines. The purpose of this report is to document the data quality objectives, sampling and analytical methodology, and results of the drainage investigation conducted as part of the large-scale RSE investigation undertaken by Tetra Tech, Inc., in support of the U.S. Environmental Protection Agency (USEPA) Region 9, between March 2018 and October 2018.
• Appendix K: Access Road Report (pdf) (17.25 MB, July 26, 2019)
  This Access Road Report is Appendix K to the Removal Site Evaluation Report for the Northern Agency Tronox Mines. The purpose of this report is to document the data quality objectives, sampling and analytical methodology, and results of the access road investigation that was conducted as part of large scale RSE investigation undertaken by Tetra Tech Inc., in support of the U.S. Environmental Protection Agency (USEPA) Region 9 between March 2018 and October 2018.
• Appendix L: Laboratory Reports (pdf) (1.45 MB, October 10, 2019)
  Northern Agency Tronox Mines FINAL Removal Site Evaluation Report Appendix L: Laboratory Reports. Response, Assessment, and Evaluation Services (RAES) Contract No. EP-S9-17-03. Task Order 0001.
  • Individual Lab Reports 1a-25b (VERY LARGE FILE) (zip)
  • Individual Lab Reports 26a-49b (VERY LARGE FILE) (zip)
  • Individual Lab Reports 50a-75b (VERY LARGE FILE) (zip)
  • Individual Lab Reports 76a-100b (VERY LARGE FILE) (zip)
  • Individual Lab Reports 101a-113b (VERY LARGE FILE) (zip)
  • Individual Lab Reports 114a-128 (VERY LARGE FILE) (zip)
• Appendix M: Data Validation Reports (VERY LARGE FILE) (zip)