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Revised 1/11/80 <br />Section 816.114 Continued <br />• plant residues remaining behind after removal of the large <br />trees and shrubs will be anchored to the soil surface through <br />the mixing processes involved in removal and reapplication of <br />the topsoil. All areas regardless of the amount of woody <br />plant residues in the topsoil will be mulched with the annual <br />grasses described in section 780.18(b). Annual grasses will be <br />anchored to disturbed sites by the roots. <br />Haul road slopes, diversion ditches, sedimentation ponds <br />and topsoil stockpiles will also be seeded to the rapid cereal <br />grain species outlined in the Revegetation Plan at section <br />780.18 (b) and the Topsoil Storage Plan contained in section <br />816.23. In the event such areas cannot be effectively and suc- <br />cessfully broadcast seeded, then such sites will have weed <br />free native grass or straw hay blown on them at the rate of <br />3,000 pounds per acre. <br />Annual grains have been an accepted and proven part of <br />the reclamation program at Energy Fuels since the mulching <br />requirement became a mandatory requirement of the OSM interim <br />regulations of Piay, 1979. <br />The rational for using a cereal grain mulch stems from <br />research conducted on surface mines in Colorado, Montana, and <br />j9yoming. One of the problems long observed in connectic.n with <br />topsoil storage was the fact that soil yO3-td and organic matter <br />levels are temporarily depressed due to the lack of normal <br />biological processes associated with plant growth and the sub- <br />• sequent tie up of these elements by the soil micro-organisms, <br />In order to replenish the organic matter in re~.pp]ie2 topsoils, <br />816-153 (c) <br />