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6.3.4 Exhibit D — Reclamation Plan <br />(a) Replacing Overburden and replacement depth. <br />• No more than 30' to 50' length of trench opened at any given time before <br />replacement of all materials including top soil and replanting. <br />• Maximum time from removal of material until replacement will not exceed 180 <br />days except during winter months. <br />(b) Maximum gradient of reclaimed slopes <br />• Slopes can exceed 3:1 horizontal to vertical angles due to this being mountainous <br />terrain. Terrain is Forestry and will remain for Forestry use after post -mining <br />operations. Areas of disturbance reclaimed, replanted using recommended seed <br />mixtures and erosion nets then utilized as a fire break. <br />• Information acquired from U.S.D.A. Soil Survey website: <br />o Bullwark family and similar soils: 50 percent <br />o Catamount family and similar soils: 25 percent <br />o Rock outcrop: 15 percent <br />0 0 — 1 inches: slightly decomposed plant material <br />0 0 to 6 inches: very stony sandy loam <br />0 6 to 11 inches: extremely stony sandy loam <br />0 11 to 17 inches: extremely stony sandy loam <br />0 17 to 26 inches: bedrock <br />(c) Specify measures that will be taken to revegetate site <br />• Best practices used to initially restore top soil including trucking in additional top <br />soil as required. <br />• Seeding Mix as detailed on the Clear Creek Website (Native Grass Seed) for <br />Roadside Mix detailed below. Note: U.S.D.A. was contacted and will provide <br />their suggested seeding mix. This seed mix may slightly change depending on the <br />U.S.D.A. recommendations: <br />o Slender Wheat Grass 2.25 lbs./acre <br />o Mountain Brome 2.25 lbs./acre <br />o Orchard Grass 1 lbs./acre <br />o Hard Fescue 1 lbs./acre <br />o Sheep Fescue 1 lbs./acre <br />• Grass seed gently ranked into top soil then covered with hay and/or erosion nets. <br />Teton Drilling, Inc. <br />Dixie Mine - Clear Creek County, CO <br />