Laserfiche WebLink
<br />Cripple Creek & Victor Gold Mining Company Exhibit E Cresson Project Amendment 13 2 <br />estimated that approximately 3 million cubic yards of growth medium are available from the existing and future development areas for the completion of reclamation, indicating that there is more than sufficient volume of suitable growth medium available to accomplish the proposed reclamation. <br />1.4 Reclamation Procedures <br />In general, the reclamation proposed as part of this Amendment 13 will not change over what was presented as part of Amendment 12 and previous submittals. Concurrent reclamation activities will occur, where feasible. After mining is completed, final reclamation activities for mine areas and OSAs will occur over an approximate seven-year period. Seeding of grasses and planting of trees and shrubs will occur primarily in the late spring/early summer and/or during the late fall/early winter periods. Stormwater will be managed during interim conditions and through reclamation construction activities according to the site Stormwater Management Plan, which is provided in Appendix 3. Post-reclamation stormwater conditions will meet the design conditions presented in the Valley Leach Facility 2 (VLF2) Phase 3 Detailed Design Report and in the Valley Leach Facility (VLF)/Overburden Storage Area (OSA) Closure Stormwater Analysis report, both prepared by NewFields Mining Design & Technical Services and located in Appendix 1 and Appendix 3, respectively. <br />1.4.1 Grading and Ripping <br />Grading or re-contouring will be accomplished using conventional dozers, loaders, and track-hoes as soon as practicable after completion of placement of post-mining materials. The graded slopes of OSAs and disturbed areas other than mine highwalls will be final-graded to overall slopes, which are generally at a slope ratio of 2.5 horizontal feet (H) to 1 vertical foot (V) (2.5H:1V) overall or shallower, unless steeper slopes are required either to blend with the surrounding topography or to create irregular landforms with a more natural appearance. If steeper slopes are required, the size of the area will be commensurate with the intended objective of blending or creating irregular landforms. Prior to final reclamation, CC&V will commit to submitting an updated reclamation plan showing locations where rock plating will occur. <br />Some steeper slopes may be plated with rock to protect against potential stormwater runoff erosion or to emulate historic underground development rock piles in the District. Contour benches may be retained or cut along the contours of the longer slopes to control stormwater runoff and provide access for reclamation activities. The development of 2.5H:1V overall slopes on selected mine area backfills, the VLFs, and the OSAs was used in the financial warranty calculations presented in Exhibit L.