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estimate based on 2013 Phase 1 volume of five benches at 3300' each times 12' wide, per <br /> the 2013 bond calculation. <br /> Phase 2 Area —20.5 acres Federal land <br /> 1) Increase in final pit floor area to be revegetated from 3 acres to 14.3 acres. Mine bench <br /> ditch maintenance cost estimates were generated based on 7308.9' of bench run times 12' <br /> wide, measured along seven mine benches between 5700' and 6020'. This equates to 2 <br /> acres of bulldozer grading @ 12' width. <br /> 2) Bond estimates regarding drilling, blasting, bulldozer grading to result in a 3:1 final slope <br /> were eliminated from this calculation due to the fact that all interim working benches meet <br /> or exceed the minimum bench width of 30'. <br /> 3) Topsoil haulage distances, equipment employed and associated costs similar to Phase 1 <br /> calculations were used with appropriate material and aerial volumes applied. <br /> Phase 3 Area — 20 acres Federal land <br /> 1) Pit Floor area remaining at full mine build out identified totaling 7.8 acres. <br /> 2) Seventeen mine benches from 5700' to 6340' totaled 12,526.2' of bench run equating to <br /> 3.45 acres of dozer grading. <br /> 3) All equipment tasks and cost estimates used per Phase 1 analysis with appropriate aerial <br /> and volumetric factors as noted. <br /> Phase 4 Area—20 acres Federal land <br /> 1) Pit Floor area remaining after final highwall build out totaling 7.1 acres. <br /> 2) Seventeen mine benches from 5700' to 6340' elevation totaling 12,056.4' of bench run <br /> equates to 3.3 acres of dozer grading. <br /> 3) Equipment usage and costs after Phase 1 protocol. <br /> Phase 5 Area— 18.5 acres Federal land <br /> 1) Pit floor acreage remaining at final highwall build out totaling 2.7 acres. <br /> 2) Seventeen mine benches from 5700'to 6340'elevation totaling 16,292.4' of run equating to <br /> 4.5 acres of bulldozer grading. <br /> 3) All equipment usage and cost factors as with Phase 1. <br /> Phase 5 Area—29 acres Tezak owned land <br /> 1) Pit floor area remaining at final highwall build out totaling 17.3 acres. <br /> 2) Seventeen mine benches from 5700'to 6340'elevation totaling 8772.8' of run equating to <br /> 2.4 acres of bulldozer grading. <br /> 3) All equipment usage and cost factors as with Phase 1. <br />