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acre-fee[ of soil were stockpiled along [he tie-across haul road and 598.2 acre-feet of <br />soil were stockprled rn the mining area. <br />Soil Balance and P.e placement <br />The soil balance rs calculated for Seneca II-W Mine by comparing the distu rhance area that <br />requires soil replacement as of December 31, 1999 with [he soil reserve in stockpiles. The <br />disturbance area for Seneca II-w Mine, shown on drawing 2W99-2A, wrth er.ceptron to the tie- <br />across haul road, totaled 749.6 acres on December 31, 1999. No soil was salvaged or needs <br />to be replaced beneath [he soil stockpile sites. Also, since Pond 005 14.8 acres), Pond <br />006 (7.9 acres), [he Mine Entrance Road, Haul Road A, and Haul P.oad G are permanent <br />postmine facilities 111.2 acres), soil will only be replaced on a portion of [hose roads <br />effectrvely narrowrnq them to 20 fee[ wide. Topsoil has been replaced on 327.7 acres of <br />disturbed area through December 31, 1999. Therefore, the [oral disturbance area requiring <br />topsoil as of December 31, 1999 was 398.0 acres a[ [he mine site and 96.6 acres for [he <br />tie-across haul road. <br />Soil Replacement Thr cY.ness <br />The sorl replacement this kness for the fits[ five-year permit term was prof ec[ed [o be 1.3 <br />feet for the mine area and 0.7 feet for the Lie-across haul road. The soil balance as of <br />December 31, 1999 was calculated as follows: <br />Mine Area <br />Total disturbance area = 749 .6 acres <br />Permanent Pau lr a es a Topsoil replaced = (351 .6) acres <br />Disiurhance area requiring sorl = 398 .0 acres <br />Soil rn stockpiles (Table 99.11 = 548 .2 acre-fee[ <br />Mean replacement depth = 1 .4 feet <br />Tie Across Haul Road <br />Drsturbance area reyur n ng sorl = 96.6 acres <br />S orl rn stockpiles ITa ble 99. L) = 69.7 acre-fee[ <br />Mean replacement deptn 0.7 feeC <br />9y drvtcL: ny the sorl mailable by the area requiring sorl replaced, we a: ri ve at [he 1999 <br />socl balance cn~ckness et 0.'% tee[ for the tie-across haul road and 1.9 feet foc [he mine <br />area. <br />4 <br />