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, <br />4. Final Grading should be <br />2.75 ac @ 4' = 20,622.2LCY/121.54 LCY/hr = 169.67 hrs @ $62.60/hr = <br />$10,620.99. <br />5. Topsoil Replacement should be <br />2.75 ac @ 2' deep = 10,311.1 LCY @ 46.11 LCY/hr = 223.63 hrs @ <br />$62.60/hr ='$13,998.73. <br />6. The Earthwork Sub-total should be $28,514.40. <br />7. Shaft Abandonment should be <br />708.43cf/3cf/sack cement =236.14 sacks @ $9/sack = $2,125.26 <br />23,442.57cf/3cf/sack surgel = 7814.19 sacks @ $6/sack = <br />$46,88 <br />5.14 <br />16 hrs of a drill rig, watertruck, flatbed truck, pickup truck, and dozer @ <br />$315.24/hr = $5,043.84 <br />marker 2 @ $2.00 = $4.00. <br />The Shaft Abandonment Sub-total should be $54,058.24. <br />8. Revegetation should be <br />Cost per acre for disking, harrowing, contour furrowing, seeding, and <br />fertilization @ $259.19/acre <br />20% failure rate, including seeding and fertilization @ $122.39/acre <br />(2.82 ac x $259.19 = $730.92) + (.564 ac x $122.39 = $69.03) _ $799.95. <br />9. The EMD Ventilation Shaft Sub-total should be $119,424.59. <br />10. The Administrative Costs should be 17.31%, for a total of $20,672.40. <br />11. The Grand Total for TR-24 should be $140,096.99, which can be rounded to <br />$140,100.00. <br />Given the expeditious review requested by TCC, it is suggested that you call first, should you <br />have any questions concerning the above adequacy comments. <br />