Laserfiche WebLink
mapping units. These units (98D and 98E) occupy about 52 percent of the proposed 1999 <br />disturbance area. <br />Generally, those soils which have a very high percentage of coarse fragments (greater than 35 <br />percent by volume), very shallow bedrock (0 to 10 inches), and shallow ground water (less than 1 <br />to 2 feet), have little suitable topsoil to be salvaged. No topsoil is available to be salvaged from <br />existing roads, ponds, residences, or farmyards <br />T~soil Salvage Depths - 1988. 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 will <br />be salvaged and used during reclamation activities. Table 2.05.4(2)(d)-1 summarizes topsoil <br />salvage depths and characteristics by map unit for the New Horizon 2 Mine disturbance area. It <br />should be noted that the topsoil depths and volumes listed in Table 2.05.4(2)(d)-1 are only <br />estimates derived from field sample pits. Exact volumetrics for each topsoil horizon cannot be <br />determined until actual topsoil removal is accomplished. WFC will live handle the majority of the <br />topsoil with scrapers or a truck/shovel fleet from in front of the active pit to the final graded backfill. <br />• WFC is committed to salvaging and redistributing all suitable topsoil. Exhibit 2.05.4-4 shows the <br />anticipated replacement topsoil thickness for each vegetation category. Actual replacement <br />thickness may vary and WFC will document any variations in the Annual Reclamation Report. <br />Topsoil Salvage Deaths - 1995. At the conclusion of Phase 6 topsoil removal campaign (12-20- <br />95), WFC conducted a topsoil balance study for the approved permit boundary. The study <br />included the entire New Horizon 2 mining area. The remaining undisturbed acreage that topsoil <br />will be salvaged from plus the topsoil that was placed in topsoil stockpiles at the beginning of <br />mining was taken into account. All disturbed acreages where taken into account. The conclusion <br />of this study can be seen in Table 2.05.4(2)(d)-2. The study shows that New Horizon 2 will be <br />topsoil deficient in Lift 1 of the two lift irrigated pasture reclamation portion. This Lift 1 has typically <br />come from the first lift of the 30C soil group. To correct this shortage, WFC will substitute excess <br />soil type 808 from the major drainage directly north of Pond 007 for Lift 1. During Phase 6 topsoil <br />campaign, 2.4 feet of 808 soil was removed from the drainage area and used for mixed Topsoil <br />replacement. The soil map shows the 808 depth being 2.4 feet in the drainage area. There is <br />. (Revised 15 Nov 02) 2.05.4(2)(d) - 8 <br />