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2.05.3 <br />(5) Topsoil <br />Reclamation activities will begin with the salvage of all topsoil material from <br />the facilities area after vegetation cover that would interfere with the use of <br />the topsoil is cleared. Sagebrush, forbs and grasses will not be cleared prior <br />to topsoil salvage. Oak brush and Pinyon and Juniper trees will be cleared <br />from areas prior to topsoil salvage. Since the area will be reclaimed as <br />rangeland and wildlife habitat and there is no prime farmland in the proposed <br />mining area, all suitable A and B soil horizons will be salvaged. No <br />segregation of the soil horizons will be undertaken and all soil material will be <br />stockpiled. The C soil horizon is not considered suitable for salvage because <br />of high SAR values. <br />Soil samples were obtained in 1980 and again in 2010. The results of the <br />laboratory analyses of the 1980 soil samples are shown in Table 4.4-2. The <br />results of the laboratory analyses of the 2010 soil samples are contained in <br />the 2010 Soils Resource Survey located in Appendix T. <br />Selected overburden materials are not planned to be used for or as a <br />supplement to topsoil. <br />Topsoil was and will be removed by rubber tired scrapers with the assistance <br />of tracked dozers or a front end loader and truck equipment spread. <br />At some future date, a new topsoil stockpile will be created where shown on <br />Figure 2.2-2. Topsoil will be stripped from the new disturbed areas and <br />placed in the pile. The stockpile will have a maximum vertical height of 40 <br />feet and 2.5 horizontal to 1 vertical side slopes will be utilized. <br />The topsoil stockpile has been sited in consideration of potential surface <br />water run-off originating from precipitation events, and potential disturbance <br />from normal operations. A ditch/berm combination will be constructed around <br />the perimeter of the topsoil stockpile. The purpose of the ditch/berm <br />combination is to control surface water runoff and to prevent large quantities <br />of topsoil from being washed into the sediment pond. The ditch will be of <br />such a size to allow for cleaning as required. Sediment removed from the <br />ditch will be placed back on the stockpile. <br />PR -02 2.05-25- 10/12 <br />