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2-38 <br />.~ <br />~~ <br />2.3.1 Topsoil Availability <br />The availability of topsoil materials associated with disturbances within the permit <br />area has been assessed as part of the baseline soil survey program and reported in <br />Section 4.4.4. Two types of topsoil will be salvaged from the areas to be disturbed. <br />Rivra Gravely Sandy Loam Variant will be salvaged to a depth of 12 inches at the <br />sediment pond and rip-rap stockpile areas, while 24 inches of Glendive Sandy Loam <br />will be salvaged from the office area. The types of soil in the permit area and salvage <br />depths in the disturbed areas are shown in Figures 4.4-1 and 2.2-2, respectively. <br />Approximately 900 cu. yards of topsoil will be salvaged from the sedimentation <br />pond and 980 cu. yards from the office complex. The soil to be salvaged will be <br />Glendive Sandy Loam and Rivra Gravely Sandy Loam with 1446 cubic yards and 273 <br />cubic yards respectively. This topsoil will be stored in the McClave Canyon topsoil <br />stockpile. <br />2.3.1 Topsoil Availability <br />Vegetation and topsoil will be removed from any area that will be disturbed <br />(access/haul road extensions, additional facilities areas and the sedimentation pond) <br />when suitable topsoil exists in recoverable thicknesses. Removal will be by front end <br />loaders or some other equipment adequate to differentially segregate suitable topsoil <br />material from unsuitable soil to the depth indicated on Figure 4.4-1. <br />M°Clane <br />Volume 1 <br />03/06 <br />