DWQ-2025-004417

May 21, 2025
Mr. Erka Naran
Kennecott Barneys Canyon Mining Company
4700 W Daybreak Parkway
South Jordan, Utah 84095Subject:Public Notice of Groundwater Permit No. UGW350010Bingham Canyon Mine Leach Collection System, Salt Lake County, UtahDear Mr. Naran:Enclosed is a draft
copy of the draft permit renewal for UGW350010; the Statement of Basis; all relevant table, figures, and appendices; and the Public Notice for your facility. This information will also
be made available in the local newspaper and on-line at https://deq.utah.gov/public-notices-archive/water-quality-public-notices during the 30-day Public Notice period as required.If
you have any questions or comments about the permit, please contact Benj Morris at [e-mail] or [phone].Sincerely,John K. MackeyDirectorJM/DB/BAM/chCc:Jay Quintanilla,
Rio Tinto Kennecott CopperKiani Ellingson, Rio Tinto Kennecott CopperDeidre Beck, Utah Department of Environmental QualityMazie Cox, Utah Department of Environmental QualityRon Lund,
Salt Lake County Health DepartmentWayne Western, Utah Department of Natural Resources
Enclosures:
UGW350010Draft Permit (DWQ-2025-004402)
UGW350010Draft Statement of Basis (DWQ-2025-004403)
Tables 1 and 3(DWQ-2025-004414)
Table 2(DWQ-2025-001282)
Table 4(DWQ-2025-004413)
Drawing 451-T-9080 (DWQ-2025-001298)
Drawing 454-T-0119 (DWQ-2025-001299)
Figure 1 (DWQ-2025-001300)
Figure 2 (DWQ-2025-001301)
Appendix A(DWQ-2025-001303)
Appendix B- draft (DWQ-2025-004407)
Appendix C(DWQ-2025-001305)
Appendix D(DWQ-2025-001290)
Appendix E(DWQ-2025-001291)
Appendix F(DWQ-2025-001292)
Appendix G- draft (DWQ-2025-004412)
Appendix H(DWQ-2025-001293)
Appendix I(DWQ-2025-001295)
Appendix J- GCMP (DWQ-2025-004415)