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<br />' 5. Revegetating all disturbed areas using an approved seed <br /> mixture at an appropriate season to ensure success. <br />' <br /> Revegetation can occur in early to mid fall or in the early spring. <br />' Fall is the desirable season to minimize winter erosion and runoff <br /> related sediment generation. Plant species recommended for <br /> revegetation are adapted to the climatic and soil conditions of the <br />' site, and should produce a stable and productive vegetation <br /> community. <br />1 <br /> E.2.1 Topsoil/Growth Medium Stockailina and Use <br />' <br /> During mine development and construction activities, <br />' available suitable topsoil/subsoil material will be stripped <br /> and stockpiled in several accessible locations shown on Figure <br />' C-1. The soil stockpiles will be placed for easy access for <br />i <br />Th <br />il <br />t <br />k <br />il <br />ill b <br />d <br />d <br />d <br />t <br />bili <br />d <br />l <br /> e so <br />s <br />oc <br />p <br />es w <br />e gra <br />e <br />an <br />s <br />a <br />ze <br />rec <br />amat <br />on. <br /> with slopes no greater than 2.5H:1V. If stockpiles are to be <br />' left in place for longer than one growing season, they will <br /> be planted with a cover crop of western wheatgrass for <br />' stabilization. <br />' During final reclamation, topsoil growth medium will be <br />placed at a depth of 18 inches, depending on the amount growth <br />' medium of to~,soil available and the location of placement. <br />Topsoil will be placed on roughened surfaces to ensure good <br />contact, and will be lightly compacted to allow for water <br />' retention and to prevent erosion. Topsoil will he placed on <br />the prepared surface just prior to seeding. <br />' E.2.2 Erosion and Sediment Control <br />1 <br /> <br /> <br />Sediment runoff and soil erosion from exposed surfaces <br />will be minimized. Erosion control will be accomplished by <br />first catching and diverting upslope runoff in diversion <br />ditches. Sediment catchment basins designed for catching runoff <br />t E-4 (Revised 4/20/89) <br />