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• outside the range of characteristics compared to the survey area, in that it occurs in an area of 7 <br />inches mean annual precipitation. <br />Table 2.04.9-3 represents average depths and pH of lift layers for soil salvage materials in the 1998 <br />survey area and which lies in the proposed future area of disturbance. Weighted average lift depth <br />is based on the percent of each soil component including inclusions for each map unit. Appendix <br />2.04.9-9lists the percent composition for each soil type in a map unit. Weighted average lift depths <br />are used to calculate volume of salvage material in table 2.04.9-4. Lift layer one is a combination <br />of the following horizons where present: A, Ap, Ag, AB, AC, Bw, and Bt if the pH of those horizon <br />was less than 8.0. Lift layer two is a combination of the following horizons where present: AC, Bw, <br />and Bt if the pH of those horizons was greater than 8.0 and Bk, Btk, and C horizons. <br />Table 2.04.9-4 represents the acreage by map unit and the weighted average volume (cubic yards) <br />of soil salvage material by lift layer available in the 1998 soil survey area and which lies in the <br />• <br />r1 <br />LJ <br />proposed future area of disturbance. Soil map unit 986 and 98H are combined into one lift layer <br />for all horizons as sited in 2.05.4(2)(d). <br />(Revised March 2006) 2.04.9-18 <br />