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• bond concept, the only liability costs that "Iloat" aze for the backlilling and grading of the pits. All <br />of the other costs ate cumulative (including topsoil replacement and revegetation). While the 826.8 <br />acre-feet is a greater volume than currently used, it does not take into account the tnaxitnum pile <br />volume for each stockpile Eox the life-of--mine. The maximum pile volume for the life of mine is <br />949.8 acre-feet of stockpiled topsoil. The volume used by the Division represents hybrid of the <br />topsoil replacement based on the 1999, 2001 and 2002 Annual Reclamation Reports. The following <br />• <br />• <br />chart shows topsoil volumes at the Yoast Mine. <br />Stockpile 1999 Vol• 2001 Volb 2002 Vole DMG Vold DMG Vole Pile Maas Volt <br />Designation (ac-ft) (ac-ft) (ac-ft) (ac-fr) (ac-ft) (ac-ft) <br />A 23.3 23,3 23.3 23.3 23.3 23.3 <br />B 13.0 13.0 13.0 13.0 13.0 13.0 <br />C 13.7 ]3.7 13.7 ]3.7 13.7 13.7 <br />D 27.9 27.9 17.9 0.0 17.9 27.9 <br />E 129.7 129.7 35.7 0.0 35.7 129.7 <br />F 68.1 68.1 49.1 0.0 49.1 68.1 <br />G 33.8 33.8 0.0 0.0 33.8 33.8 <br />H 55.4 55.4 55.4 53.0 55.4 55.4 <br />I 41.4 41.4 41.4 25.0 41.4 41.4 <br />K 120.6 120.6 120.6 59.9 120.6 120.6 <br />L 32.3 68.4 68.4 65.0 68.4 68.4 <br />M 0.0 45.4 65.3 105.0 65.3 65.3 <br />O 0.0 86.6 100.2 105.0 100.2 100.2 <br />P 0.0 3.9 6.3 105.0 6.3 6.3 <br />Q 0.0 0.0 108.0 105.0 108.0 108.0 <br />R 0.0 66.9 74.7 105.0 74.7 74.7 <br />Total 559.2 798.1 793.0 777.9 826.8 949.8 <br />1999 Stockpile Volumes from 1999 Annual Reclamation Report <br />2001 Stockpile Volumes from 2001 Annual Reclamation Report <br />2002 Stockpile Volumes from 2004 Annual Reclamation Report <br />Volumes from 2005 DMG RN-02 Estima te, in LCY -from Page 25-1-11 <br />DMG Volume Used in 6 December 2005 Recalculation <br />f Maximum Pile Volume Based on 1999, 2001 and 2002 Annual Reclamation Reports <br />PR-02 <br />Revised 01/06 <br />