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Cripple Creek&Victor Gold Mine <br /> Valley Leach Facility Expansions ■ <br /> Detailed Design for Permitting <br /> NewFields Project No.475.0106.064 <br /> • March 2024 <br /> These Expansions will also incorporate the western side of Joe Dandy Hill. Joe Dandy Hill will be <br /> brought to design grade by either cutting back existing slopes or placing structural fill to achieve <br /> a slope no greater than a 2 horizontal (H):1 vertical (V). The majority of the proposed grading will <br /> follow existing ground except where two embankments will be constructed for containment in <br /> the VLF1 Phase 6 Expansion. <br /> The VLF Expansions will be constructed in four stages: <br /> • VLF2 Phase 4 Stage A <br /> o 2.0 million square feet of lined pad, <br /> o Converts the current Mill Platform to a leach pad, <br /> o Pad is graded to drain towards the existing VLF2 Phase 1/2 PSSA. <br /> o Refer to Drawing A012. <br /> - VLF2 Phase 4 Stage B <br /> o 2.1 million square feet of lined pad, <br /> o Pad is graded to drain towards existing VLF2 Phase 1/2 PSSA. <br /> 410 o Refer to Drawing A013. <br /> • VLF1 Phase 6 Stage A <br /> o 2.9 million square feet of lined pad, <br /> o New PSSA located on the western portion of the footprint, <br /> o Two proposed earthen embankments to be constructed, <br /> o Pad is graded to drain towards the new PSSA. <br /> o Refer to Drawing A014 stage limits and Drawing A015 for limits of PSSA. <br /> • VLF1 Phase 6 Stage B <br /> o 1.5 million square feet of lined pad, <br /> o Drains to proposed VLF1 Phase 6 PSSA, <br /> o Refer to Drawing A016. <br /> The proposed ore stacking plan ties into the existing ore on VLF1 VLF2 with a proposed overall <br /> slope of 2.5(H):1(V). The design assumes an ore lift height of 100-feet placed at an angle of <br /> repose, approximately 1.5(H):1(V), and 100-foot-wide benches between lifts. In accordance with <br /> the previous designs, the maximum design ore depth over the liner is 800 feet. The closure <br /> conditions have a proposed overall reclamation slope of 2.5(H):1(V). <br /> • <br /> Page 2 <br />