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NEWMONT <br />GOLDCORR <br />revegetated because the coarse rock prevents erosion. Drainage channels or benches developed <br />on the OSAs will be candidates for similar plating with rock and select slopes may be suitably <br />plated with the overburden as a backdrop for other compatible uses. <br />The stability of the reclaimed SGOSA was addressed in permit Amendment 10 documentation. <br />Updates to the stability of the reclaimed slopes, based on the VLF2 Phase 3 modifications are <br />presented in the VLF2 Phase 3 Detailed Design Report, provided in Appendix 1. The final <br />reclaimed surface of the SGOSA will be graded to conform to the stormwater runoff patterns <br />shown on the drawings in Exhibit F. An updated discussion of diversion/conveyance channels <br />and detention basins for the new SGOSA configuration and VLF2 Phase 3 configuration is <br />provided in the VLF/OSA Closure Stormwater Analysis provided in Appendix 3. <br />ECOSA <br />ECOSA is located along the southern (north and east -facing) slopes of Grassy Valley with the <br />vast portions of the OSA lying within the volcanic diatreme. The maximum constructed height of <br />ECOSA will be 10,960 ft amsl, as approved in Amendment 11. Out slopes will be graded to <br />approximately 2.5H:1 V with drainage channels established at the back of each bench graded to <br />drain water away from the ECOSA. A minimum of six inches of growth medium will be used to <br />cover the graded overburden with a typical depth of growth medium ranging from six to twelve <br />inches. The soil may be sampled to determine the need for additional soil amendments. <br />Vegetation will be established according to the procedures presented in Section 1.3.3. <br />As discussed in greater detail in Appendix 1, Volume II, of Amendment 11 documentation, the <br />neutralizing capability of the overburden to be placed in the ECOSA, along with the neutralization <br />capacity of the rock in the diatreme, is estimated to be adequate to neutralize potential water <br />quality changes as a result of the overburden placement into ECOSA. <br />The stability of the reclaimed ECOSA was addressed in Amendment 11 and is discussed <br />generally in Section 1.4.1 above. The previous analysis indicates that the reclaimed area of <br />ECOSA will be stable over the long term. <br />The final reclaimed surface of the ECOSA will be graded to conform to the runoff patterns shown <br />on the drawings in Exhibit F. A discussion of diversion/conveyance channels and detention basins <br />for the final ECOSA configuration is provided in the updated VLF/OSA Closure Stormwater <br />Analysis provided in Appendix 3. <br />Cripple Creek & Victor Gold Mining Company Exhibit E <br />Cresson Project Amendment 13 <br />10 <br />