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GRADING AND BACKFILLING <br />The. mine. has been in some. form of continual operation sine the mid 1940's. <br />Therefore, with the exception of the newly constructed coal refuse pile, the entire site <br />falls under the Previously Disturbed category. No topsoil was salvaged prior to <br />SMCRA; therefore, not all areas to be reclaimed will receive topsoil. Attempts for 6" <br />of growth medium will be replaced on the Upper Facilities Area, reclaimed highwall <br />areas, and the refuse pile. The pond area (Area 1) and the Lower Facilities area <br />(Area 2 on Map King I-O10) are not scheduled to receive any plant growth medium <br />except that which may lie in and around the areas. <br />The tipple area highwall, and shop area highwall shown on Map King I-010. <br />will be back-filled in 2 foot lifts to a slope of 2:1 utilizing mine waste and fill rock. <br />The benches, however, will be graded and contoured to a 2.5:1 slope gradually <br />sloping to 3:1. <br />Analysis of stored waste, as tested by C. T. 8v E. is included in Appendix 12(4) <br />(Samples #4, #5 8v #6). <br />Rock lined stilling basins will be constructed at three locations depicted on the final <br />contour map (King I-011). The basins will be installed along with the final drainage <br />channels after a successful Phase II Bond release, <br />Volume for reclamation costs estimates are based on surface area delineations as <br />well as grid surfaces calculated from existing and final contour maps using <br />computer software programs. (See reclamation cost estimates for more details) <br />WASTE PILE RECLAMATION <br />Refer to section 2.05.3 (Waste Pile Design) for a detailed description of the coal <br />mine waste (refuse) storage area. Technical Revision TR-08 addresses <br />reconstruction of the waste pile. Designs for this reconstruction Piave been provided <br />by Don May, P.E. and are located in Appendix 10(1). <br />Upon completion of the reconfiguration of the waste pile as designed in TR-08, <br />fill material was used to cover the face of the pile to the required depth. This fill <br />material was salvaged during reconstruction of the existing waste pile and is <br />composed of about 50% rock and 50% earth. After compaction of this fill material, <br />plant growth medium was spread as required by this section and the area was re- <br />vegetated. This brought the existing face of the pile to final reclamation status. <br />Future waste pile reclamation will entail stockpiling plant growth medium and <br />fill material which will be salvaged while extending the waste pile as it grows. As the <br />waste pile slowly increases in size, all available fill material and plant growth <br />medium will be removed- and stockpiled at the east boundary of each 5 year design <br />phase. As the face of the pile rises, material from this stockpile will be drawn upon <br />and used to reclaim the face of the waste pile as outlined above. Should additional <br />fill material be required at final reclamation, suitable material from the designated <br />borrow area will be used. <br />National King Coal, LLC King I Mine <br />Section 2.05.4 <br />Page 4 February, 2007 <br />