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I ~ combined with the overburden. The remaining vegetation will be incorporated into the topsoil to <br />help increase soil organic matter levels. To prevent unnecessary contamination, adequate <br />extent of topsoil shall be salvaged from the edge of a road, embankment, ditch, cut slope, and <br />toe of f II. <br />Topsoil will be removed by using self-loading scrapers, push scrapers, or other rubber tired <br />equipment. A dozer or road grader will also be used when needed to assist scraper loading, to <br />facilitate maximum topsoil recovery, and to help build and shape topsoil stockpiles. Where <br />topsoil exists on a steep slope and where there is enough room for scrapers to maneuver at the <br />bottom of that slope, topsoil will be removed by being pushed downhill with a dozer, picked up <br />with scrapers, then stockpiled or transferred directly to regraded areas. <br />A two-lift topsoil operation will be utilized for the two primary premine irrigated pastureland soil <br />types (30C and D706), whereby the "A" and upper "B" horizons are salvaged separately from <br />the lower "B" and "C" soil horizons (1988 - 1996 disturbance area). <br />Specific Soil Map Units (1 E, 1 EW, and 808) at New Horizon 2 (1988 - 1996 disturbance area) <br />are more suited for one-lift topsoil salvage because they are very shallow to shallow, have little <br />profile development, and/or are excessively stratified. The salvageable topsoil from these units <br />will primarily be utilized, whenever feasible, in postmine dry pastureland area. One-lift topsoil will <br />be isolated from the two-lift topsoil during all soil handling operations. <br />A two lift operation will be utilized for the following irrigated pasture/hayland soil map units in the <br />proposed 1999 disturbance area: 98A, 98D, 98E, 98F, and 98G (Table 2.05.4(2)(d)-3). For these <br />soil map units, the A, Bt and Bw horizons will be combined for salvage in the first lift layer and <br />the Bk and C horizons will be combined for salvage in the second lift layer. <br />A two lift operation will be utilized for the soil map unit 98C in the proposed 1999 disturbance <br />area (Table 2.05.4(2}(d}-3}. For this soil map unit, the A, Bt and Bw horizons will be combined <br />for salvage in the first lift layer and the Bk and C horizons will be combined for salvage in the <br />second lift layer. <br />• (Revised s-ie-zoom ~ 2.05.4(2)(d) - 10 <br />