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• 4.14 BACKFILLING AND GRADING <br />4.14.1 General Reouirements <br />The mining operations of Sunbelt will not employ the use of contour <br />mining, open pit mining, or area strip mining techniques. Rather, the <br />mining techniques to be used by Sunbelt will be underground mining <br />utilizing a room and pillar technique. <br />At the completion of mining activities, the surface areas disturbed <br />incidental to the underground mining will be backfilled and graded. The <br />disturbed areas will be returned to the approximate original contour by <br />grading and backfilling with the use of bulldozers. Additional detail <br />of the backfilling and grading for the surface facilities and portal <br />areas of the Peacock Coal Mine is set forth in the discussion under <br />Sections 2.05.3 and 2.05.4. <br />• 4.14.2 General Grading Requirements <br />The final graded slopes of the surface facilities and portal entry <br />locations will be restored to the approximate original pre-mining slope <br />grades as shown on the Post-Mining Topography Map (Map 9). In as much <br />as possible, Sunbelt will retain all overburden material on solid <br />portions of existing or new benches. The face up area for the portal <br />entries will be eliminated by partial backfilling overburden and prompt <br />revegetation to control erosion. <br />Final grading will be done along the contour, unless a specific area <br />would cause a safety hazard to the operator, in which case grading would <br />be other than along contour. Specific discussion of the plan for and <br />sequence of backfilling and grading is set forth in the discussion under <br />Section 2.05.4. The steeper area will be stabilized with the use of <br />farming equipment by disking, chisel plowing, and/or furrowing. <br /> <br />4.14-1 <br />