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General Topsoil Replacement <br />Map 2.05.4(2)(d)- lshows the anticipated thickness of the replacement soil. Topsoil will <br />be replaced only when the approved postmine contours are achieved and when no <br />additional disturbance is anticipated. Topsoil will not be replaced on temporary <br />reclamation sites such as haul road ditches, cut, slopes and fill slopes, pond embankments <br />and spillways, and diversion ditches. Temporary reclamation sites will be <br />Seeded and stabilized as described in Section 2.05.3(2)(e) Revegetation. Topsoil will be <br />replaced within the aforementioned areas once final reclamation is achieved. Topsoil <br />shall be replaced along the contour, whenever feasible, to minimize potential erosion and <br />topsoil /spoil interface slippage problems. This practice will be discontinued on steep <br />slopes ( >20 %) where the safety of the equipment operator is in jeopardy. Topsoil which <br />is replaced on mined areas will be scarified on the contour to a depth of 12 to 24 inches <br />with a chisel plow or ripper. The operation of seed bed preparation will also reduce <br />compaction, increase infiltration, and promote surface roughness. Spoil and topsoil <br />scarification is also discussed in the Seed Bed Preparation section of the Revegetation <br />Plan, Section 2.05.4(2)(e). <br />Whenever practical, the salvaged topsoil will be immediately transported to leveled and <br />regraded spoil areas and placed on top of the respread and scarified Bench 1 Surface <br />Spoil or free dig zone materials. The direct haul method is economically desirable and <br />also maintains a high topsoil quality by a direct transfer of viable seed microbes, and <br />roots; reduced compaction, better preserved structure, increased aeration and stable <br />nutrient status. <br />Topsoil will not be handled when saturated either during the initial stripping, re- <br />spreading or final grading. Handling sticky or plastic soils in a saturated state would <br />reduce the quality of the topsoil by degrading the physical characteristics and tilth of the <br />soil. A hard, compact surface layer would result, which would reduce or inhibit seed <br />germination, seeding, root establishment, and air and water penetration. Most of the <br />topsoil material recommended for salvage has a sandy loam to sandy clay loam soil <br />Section 2.05.4(2)(d) Page 20 January 2012 <br />