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0 Topsoil Salvage Depths - 1988 Study Area <br />This study addresses the approximate original permitted area of 274 acres or 235 disturbed <br />acres, as shown on Map 2.04.9-1. The suggested salvageable depths of topsoil material <br />presented in this section are based on laboratory data and extensive field observations, and <br />represent only the most suitable sources of topsoil material. No unsuitable sources of topsoil <br />will be salvaged and used during reclamation activities. Table 2.05.4(2)(d)-3 summarizes <br />topsoil salvage depths and characteristics by map unit for the New Horizon 2 Mine disturbance <br />area. It should be noted that the topsoil depths and volumes listed in Table 2.05.4(2)(d)-3 are <br />only estimates derived from field sample pits. Exact volumetrics for each topsoil horizon cannot <br />be determined until actual topsoil removal is accomplished. WFC will live handle the majority of <br />the topsoil with trucks and the mine shovel or large front end loaders in front of the active pit to <br />the final graded backfill. WFC is committed to salvaging and redistributing all suitable topsoil. <br />Map 2.05.4-4 shows the actual replacement topsoil thickness for each vegetation category in <br />the original permit area. As of February 2008, the only areas from the original permit that still <br />requires topsoil replacement are the haul road, the overburden stockpile and some other minor <br />• areas. These areas cannot be re-topsoiled until the mine is in final reclamation. <br />Topsoil Salvage Depths - 1995 Study Area <br />This study addresses the additional permit area immediately east of 2700 Road and south of <br />BB Road, which is an area of 105.8 acres. See Map 2.04.9-1 for the boundary of this area. At <br />the conclusion of Phase 6 topsoil removal campaign (12-20-95), WFC conducted a topsoil <br />balance study for the approved permit boundary. The study included the entire New Horizon 2 <br />mining area. The remaining undisturbed acreage that topsoil will be salvaged from plus the <br />topsoil that was placed in topsoil stockpiles at the beginning of mining was taken into account. <br />All disturbed acreages where taken into account. The conclusion of this study can be seen in <br />Table 2.05.4(2)(d)-4. <br />The study shows that New Horizon 2 will be topsoil deficient in Lift A of the two lift irrigated <br />pasture reclamation portion. This Lift A has typically come from the first lift of the 30C soil <br />group. To correct this shortage, WFC will substitute excess soil type 808 from the major <br />• (Revised Nov 2008) 2.05.4(2)(d)-17