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Construction, Inc. <br /> 1850 E. I". Street, Craig, CO 81625 <br /> Phone & Fax (970) 824-2709 <br /> WagnerCorp@q.com <br /> EXHIBIT D (6.4.4)—Mining Plan <br /> Wagner Construction Inc. (operators) will adhere to the same mining plan offered under <br /> the 110 Permit M-99-018 with expansion revision noted below in Subsection H. <br /> a) Mining will commence upon approval of this permit, and end when necessary <br /> excavation has been completed and the requirements for agricultural <br /> improvements by land owner are satisfied. <br /> Open pit mining will result in approximately 928 linear feet of 2 to 1 north facing <br /> slopes and approximately 400 linear feet of east and west facing slopes for a <br /> combined total of approximately 1500 liner feet. These slopes will be over 135 ft <br /> tall and will be constructed during the mining process. After 800 linear feet of 2 to <br /> 1 slopes at a depth of 60 ft are attained 6 inches of topsoil from the adjacent <br /> topsoil stockpile will be spread evenly over the 2 to 1 slopes and then seeded in <br /> the fall following. The pit floor will be graded to drain with exposed aggregate. <br /> The north pit boundary will be day lighted without slope. <br /> Stockpiled materials will be stored in the southeast area of the disturbed area as <br /> noted on the mining plan map. <br /> Methods are consistent throughout all stages. <br /> Methods include: <br /> Track hoe excavating all materials <br /> Articulated Dump Truck hauling materials to the surface to the screening <br /> plant. <br /> b) Mining Management—excavators, crushers, dozers, loaders, dump trucks <br /> Present topsoil depth in this rock area is approximately six(6) inches in depth and <br /> is suitable as a plant growth medium. The topsoil will be salvaged for use in the <br /> landscaping, backfilling and structural fill process. Topsoil from the mine <br /> excavation will be stockpiled for reclamation activities and stored at the highest <br /> point along the perimeter of the excavation. Topsoil piles will be sloped to a 2 to <br /> 1 angle and revegetated with the same pasture land seed mix as is referenced in <br /> the reclamation plan as recommended by the USDA. (Reference: Seed Mix <br /> attachment for Exhibit DTopsoil removal will run concurrent with mining efforts. <br /> Limited areas will be stripped upon need. Seed bed preparation consisting of <br /> discing to eliminate compacted conditions, drill seeding and fertilizing of topsoil <br /> will be conducted annually as mining operations progress. <br /> a. Top Soil Management—excavators, dump trucks, loaders <br /> The depth of the excavation of deposit will not exceed 60 (sixty) feet without <br /> technical revision. <br />