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MOUNTAIN COAL COMPANY <br />West Elk Mine <br />Gravel Bunkers <br />Reclamation Costs <br />• Concrete - All 12" reinforced <br />Floor Slab = 26' X 49' = 1,274 ft2 <br />1,274ft2 X $6.02/ft2 X 102% _ $7,823.00 <br />Back Wall = 8' X 49' = 392ft2 <br />392 ft2 X $10.00/ft2 X 102% _ $3,998.00 <br />Side Walls=4X8'X25'=800 ft2 <br />800 ft2 X $10.00/ft2 X 102% _ $8,160.00 <br />• Culvert & pipe <br />6" drain pipe <br />105 ft X $4.71/ft X 102% _ $504.00 <br />24" CMP <br />65 ft X $7.54/ft X 102% _ $500.00 <br />• On-site concrete disposal <br />2,446/ft2 X 12" = 2,466 ft' = 27= 91 yd' <br />91 yd' X $5.06/yd' 460.00 <br />$21,445.00 <br />• Indirect Costs of 20% _ <br />4$ .289.00 <br />Total Cost $25,734.00 <br />Bond Summary <br />Bond Amount $4,400,000.00 <br />Bond Required $4.375.175.00 <br />Surplus $24,825.00 <br />Office Trailers Credit $19,237.00 <br />Indirect Cost Credit 3,847.00 <br />~~ <br />Gravel Bunkers $ 25,734.00 <br />New Surplus $ 22,175.00 <br />8/93, MR 97 <br />