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Plan, Exhibit 12-2, dated 70/04/93. Soil map units for the undisturbed areas were <br />transferred from the baseline soil map, Exhibit 9-1, Soil Types end Topsoil Salvage Map <br />(dated 04/79/97). <br />Soil has been salvaged from 568.2 acres sines construction of the tie across haul road <br />was initiated in 7989. Additionally, 79.5 acres of disturbance ere associated with the <br />mine entrance haul road. The soil is currently stored at Stockpile Sites A, C, D, E, F <br />and G along the tie across haul road, et Stockpile Sites I, J, K, and BB along Haul Road <br />A, at Sites L, N, P2, AA, and GG, in Che lower mine block, Sites NH, II, and JJ in the <br />upper mine block, Sitea PP, g0, RR, end SS along Heul Road G, and at Si[e KK near Pond <br />009. <br />The actual volume of soil salvaged and stockpiled from 1989 through December 37, <br />1993 was determined by field survey of existing soil storage stockpiles. The base end <br />existing elevations for each stockpile were completed by the Seneca II-W engineering <br />staff. The "Stook" volume calculating program was used to generate the soil stockpile <br />volumes presented in Table 93.7. As of December 37, 1993, 69.7 acre-feet of soil were <br />stockpiled along the tie-across haul road and 594.7 acre-feet of soil were stockpiled in <br />the mine area. <br />Projected soil salvage areas end volumes for the remainder of the first five-year permit <br />term (shown on Exhibit 93.2) were determined as follows. Soil map units for the <br />undisturbed areas ere identified on Exhibit 43.2. Individual soil map units to be <br />disturbed by mining activities were digitized to determine the total affected area. <br />Projected soil volumes were determined by multiplying each effected soil map unit area by <br />the respective mean soil selvage thickness. The projected soil salvage areas, soil <br />salvage thickness, and soil volume for each soil type for the remainder of the first <br />permit term are listed in Table 93.2. It is projected that 226.1 acre-feet of soil <br />remain to be selvaged from 180.1 acres of land within the first permit term. <br />Soil Bel ante and Reolacement. The soil balance for the first permit term is calculated <br />for Seneca 11-W Nine by comparing the disturbance area that requires soil replacement as <br />of December 31, 7993 with the soil reserve in stockpiles end soil to be salvaged ahead of <br />mining. The cumulative disturbance area for Seneca [1-N Mine, shown on Exhibit 93-1 with <br />. exception to the tie-across haul road, totalled 637.3 acres on.December 31, 1993. <br />Included in the disturbance area figure are 46.7 acres of soil stockpiles outside of the <br />area to be affected by soil salvage, 79.5 acres for the mine entrance road, 96.6 acres <br />5 <br />