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survey area and which lies in the proposed future area of disturbance. Weighted average lift depth is <br />based on the percent of each soil component including inclusions for each map unit. Appendix 2.04.9- <br />9lists the percent composftion for each soil type in a map unft. Weighted average lift depths are used <br />to calculate volume of salvage material in table 2.04.9-4. Lift layer one is a combination of the following <br />horizons where present: A, Ap, Ag, AB, AC, Bw, and Bt if the pH of those horizon was less than 8.0. <br />Lift layer two is a combination of the following horizons where present: AC, Bw, and Bt if the pH of <br />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) of <br />soil salvage material by lift layer available in the 1998 soil survey area and. which lies in the proposed <br />future area of disturbance. Soil map unit 98B and 98H are combined into one lift layer for all horizons <br />as sited in 2.05.4(2)(d). <br /> <br />(Revised 2/00) 2.04.9-13 <br />