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A soil depth map, Figure 4.7-1, delineates the available depth of topsoil (inches) for each map unit. The soil depth suitable for stripping and reclamation use has been determined through evaluation of topsoil material by horizon as presented in Soils Assessment, Munger Canyon Permit (WRDC 1980a). 3.2.2 Volumes of Topsoil Available for Reclamation The volume of topsoil available for reclamation is in the topsoil stockpile located below the proposed waste rock disposal area. (Figure 2.2-1 ). This topsoil pile contains about 1200 cubic yards which is sufficient to cover approximately 1.5 acres 6-inches deep. This topsoil will be trucked to the mine site where it will be spread approximately 6-inches thick. There are approximately 1,400 cubic yards of topsoil type material stored at the mine site. This is the amount remaining after some of the material was used to cover the coal hauled from the Loma Loadout. These topsoil volume figures are obtained from recent (2001) digital contours. • The topsoil to be salvaged in the sediment pond and waste rock disposal areas are explained in section 2.2.5. This topsoil will be utilized for the reclamation of the waste rock disposal area. 3.2.3 Topsoil Storage Two topsoil storage areas will be located in the vicinity of the waste rock disposal area (Figure 2.2-1 ). Vegetation will be stripped from the storage areas prior to stockpiling. The design and management of topsoil stockpiles is addressed above. During storage, the topsoil stockpile will be stabilized with a perennial vegetational cover resulting from drill seeding of 5 Ibs/ acre Western Wheatgrass- Arriba, 5 Ibs/acre Streambank Wheatgrass-Sodar, and 5 Ibs/acre Thickspike Wheatgrass-Critana. Weed cover will be controlled via the most appropriate technique. Control of weeds in the topsoil will decrease potential problems of weeds competing with species of revegetation mix after the topsoil is re-spread. • Permit Renewal 3-5 08/03