UIC Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1: Excelsior Mining Arizona Inc. Gunnison Copper Project, Cochise County, AZ

UIC Area Permit R9UIC-AZ3-FY16-1 and supporting documents for Class III In-Situ Production of Copper: Gunnison Copper Project, Cochise County, Arizona, issued to Excelsior Mining Arizona Inc., Concord Place, Suite 300, 2999 North 44th Street, Phoenix, Arizona 85018.

Excelsior is required to post on the Website copies of the proposed and approved stimulation plans and procedures with any EPA conditions and reporting of results, as described in Part II.G.2.m of the Permit No. R9UIC-AZ3-FY16-1, including appendices and exhibits, within 15 days of submission to or receipt from EPA.

• Excelsior Established Website Accessible to the General Public

• Major Permit Modification: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (362.46 KB, April 21, 2023)
  Major Modification to the Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1 issued to Excelsior Mining Arizona Inc. for Gunnison Copper Project, Cochise County, Arizona.
• Response to Comments: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (265.09 KB, April 21, 2023)
  Response to Comments and description of changes to Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1 issued to Excelsior Mining Arizona Inc., Concord Place, Suite 300, 2999 North 44th Street, Phoenix, Arizona 85018 for Gunnison Copper Project, Cochise County, Arizona.
• Minor Permit Modification: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (254.53 KB, April 23, 2021)
  Minor Modification of Permit No. R9UIC-AZ3-FY16-1 For Excelsior Mining Arizona Inc. Gunnison Copper Project to revise the types of fluids allowed to be injected to conduct tracer testing.
• Minor Permit Modification: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (182.15 KB, September 17, 2020)
  Minor Modification of Permit No. R9UIC-AZ3-FY16-1 For Excelsior Mining Arizona Inc. Gunnison Copper Project adding cement placement changes and six additional monitoring wells.
• Minor Permit Modification: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (1.95 MB, June 21, 2019)
  Minor Modification of Permit No. R9UIC-AZ3-FY16-1 for Excelsior Mining Arizona Inc. Gunnison Copper Project.
• Notice of Lifting of Stay of the Permit: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (1.14 MB, November 15, 2018)
  Notification of lifting of stay of the permit for Excelsior Mining Arizona Inc.’s Gunnison Copper Project Permit No. R9UIC-AZ3-FY16-1.
• Notice of Final Permit Decision: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (145.65 KB, June 22, 2018)
  Notice of Final Permit Decision Issuance of the Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1 For the Gunnison Copper Project.
• Public Hearing Transcript: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (923.68 KB, February 27, 2018)
  Transcript of Public Hearing held February 27, 2018, for proposed Class III Underground Injection Area Permit and Proposed Aquifer Exemption for Excelsior Mining Arizona Inc. Gunnison Copper Project.
• Response to Comments: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (933.36 KB, June 22, 2018)
  EPA response to comments and description of changes to the draft permit relating to Gunnison Copper Project, Excelsior Mining Arizona Inc. Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1.
• Aquifer Exemption Decision Letter and Record of Decision: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (3.95 MB, June 22, 2018)
  Aquifer Exemption Decision and Record of Decision for Gunnison Copper Project, Excelsior Mining Arizona Inc. Class III In-Situ Production of Copper Permit, Cochise County, Arizona.
• Statement of Basis: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (146.22 KB, October 24, 2017)
  Statement of Basis for UIC Class III In-Situ Production of Copper Permit No. R9UIC-AZ3-FY16-1 issued to Excelsior Mining Arizona, Inc. Gunnison Copper Project.
• UIC Permit No. R9UIC-AZ3-FY16-1: Excelsior Mining Arizona Inc. Gunnison Copper Project, Cochise County, AZ (pdf) (969.26 KB, June 22, 2018)
  Underground Injection Control Program Area Permit No. R9UIC-AZ3-FY16-1 for Class III In-Situ Production of Copper for Gunnison Copper Project, Cochise County, Arizona, Issued to Excelsior Mining Arizona, Inc., Concord Place, Suite 300, 2999 North 44th Street, Phoenix, Arizona 85018. Issued June 22, 2018; effective August 1, 2018.
• Appendix A: Project Maps, Aquifer Exemption Delineation, and Well Locations - Gunnison Copper Project (pdf) (19.18 MB, June 22, 2018)
  Appendix A to Underground Injection Control Program Area Permit No. R9UIC-AZ3-FY16-1 for Class III In-Situ Production of Copper for Gunnison Copper Project, Cochise County, Arizona, Issued to Excelsior Mining Arizona Inc. Includes Project Maps, Aquifer Exemption Delineation, and Well Location.
• Appendix B: Proposed Well Construction Procedures and Diagrams - Gunnison Copper Project (pdf) (1.03 MB, October 24, 2017)
  Proposed Well Construction Procedures and Diagrams for the Excelsior Mining Arizona, Inc.’s Gunnison Copper Project.
• APPENDIX C: Plugging and Abandonment Plans - Gunnison Copper Project (pdf) (12.11 MB, June 2017)
  Appendix C to Underground Injection Control Program Area Permit No. R9UIC-AZ3-FY16-1 for Class III In-Situ Production of Copper for Gunnison Copper Project, Cochise County, Arizona, Issued to Excelsior Mining Arizona, Inc. Includes: Corrective Action Plan and Well Data, Plugging and Abandonment Plan, ADWR Well Abandonment Handbook, and Wellfield Closure Costs.
• Appendix D: Geophysical Logging Requirements - Gunnison Copper Project, Cochise County (pdf) (50.21 KB, October 24, 2017)
  Geophysical Logging Requirements for the Excelsior Mining Arizona, Inc.’s Gunnison Copper Project.
• Appendix E: Description of Operations - Gunnison Copper Project (pdf) (6.08 MB, June 2016)
  Appendix E to Underground Injection Control Program Area Permit No. R9UIC-AZ3-FY16-1 for Class III In-Situ Production of Copper for Gunnison Copper Project, Cochise County, Arizona, Issued to Excelsior Mining Arizona, Inc. Includes Description of Operations.
• Appendix F: Wellfield Closure Strategy - Gunnison Copper Project (pdf) (480.92 KB, 10/24/2017)
  Wellfield Closure Strategy for the Excelsior Mining Arizona, Inc.’s Gunnison Copper Project.
• Appendix G: EPA Reporting Forms List - Gunnison Copper Project (pdf) (22.81 KB, October 24, 2017)
  EPA Reporting Forms List for the Excelsior Mining Arizona, Inc.’s Gunnison Copper Project.
• Appendix H: Region 9 Step Rate Test Policy - Gunnison Copper Project (pdf) (19.16 KB, October 24, 2017)
  Region 9 Step Rate Test Policy for the Excelsior Mining Arizona, Inc.’s Gunnison Copper Project.
• APPENDIX I: Groundwater Quality Alert Levels and Compliance Monitoring - Gunnison Copper Project (pdf) (531.14 KB, July 2017)
  Appendix I to the Underground Injection Control Program Area Permit No. R9UIC-AZ3-FY16-1 for Class III In-Situ Production of Copper for Gunnison Copper Project, Cochise County, Arizona, Issued to Excelsior Mining Arizona, Inc. Includes Groundwater Quality Alert Levels and Compliance Monitoring.
• Draft UIC Permit No. R9UIC-AZ3-FY16-1: Excelsior Mining Arizona Inc. Gunnison Copper Project (pdf) (515.52 KB, October 24, 2017)
  Draft authorization to construct and operate a Class III injection well facility and engage in in-situ copper recovery (ISR) operations at the Excelsior Mining Arizona, Inc. Gunnison Copper Project (Project), Cochise County, Arizona.