Laserfiche WebLink
At the average stripping depth <br />50.0' overburden <br />+ 5.0' coal <br />55.0' material excavated <br />at 15°~ Swell <br />1.15 x (50.0) = 57.5 material replaced <br />57.5'/55.0' = 1.05 of the initial thickness <br />Therefore, the 0.8 requirement for thin overburden and the 1.2'equirement for thick overburden are <br />not met. <br />At the maximum stripping depth <br />90.0' overburden <br />+ 5.0' coal <br />95.0' material excavated <br />at 15 °,6 Swell <br />1.15 x (90.0') = 103.5' material replaced <br />203.5'/95.0' = 1.09 of the initial thickness <br />Therefore, the 0.8 requirementfor thin overburden and the 1.2 requirement for thick overburden are <br />not met. <br />Disposal of F~ccess Spoil <br />All excavated non-coal materialfrom the mining areas will be used for backfilling the mined pits and <br />blending mined areas into the existing topography to achieve the approximate original landform. <br />Therefore, no excess spoil material will exist. <br />(REVISED 9/99) 2.05.4(2)(c) - 3 <br />