Laserfiche WebLink
10.0 General Topsoil Handling & Placement Procedures After February 2008 <br />After February 2008, soil types 98A and 98E were determined to be prime farmland soils. New <br />stripping procedures were outlined by the NRCS and immediately adopted, based on color <br />change in the soils. These Lift A and Lift B topsoils were placed in stockpiles, as described in <br />Subsection 8.0. <br />Many of the elements of this topsoil handling and redistribution plan that was approved in TR- <br />57 were further modified for Permit Revision 06. <br />Topsoil will 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 reclamation <br />sites such as haul road ditches, cut, slopes and fill slopes, pond embankments and spillways, <br />and diversion ditches. Topsoil will not be placed if it is saturated. Temporary reclamation sites <br />will be 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 shall be <br />replaced along the contour, whenever feasible, to minimize potential erosion and topsoil /spoil <br />interface slippage problems. This practice will be discontinued on steep slopes where the safety <br />of the equipment operator is in jeopardy. <br />The mine sequence is to first remove the topsoil (Lift A Topsoil and Lift B Topsoil or Mixed) with <br />the truck - shovel fleet and hauled it to the regraded area behind the pit to be spread or <br />stockpiled. A temporary haul road around the end of the pit is used for this operation. In some <br />cases, the topsoil is temporarily pushed in advance of the pit in a temporary elongated moving <br />stockpile, which is eventually loaded and hauled to the regraded backfill for permanent or <br />temporary placement. As described in Attachment 2.05.3(3) -7 Small Area Exemptions, a small <br />topsoil catchment berm /ditch is placed at the advance edge of the pit so that all surface water <br />runoff (precipitation or snow melt) from the topsoil excavation area is trapped by this berm. Map <br />2.04.9 -2 shows this berm in advance of the pit. <br />Revised September 2010 (PR 06) 2.05.4(2)(d) -23 <br />