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Seedbed Material Replacement <br />During the various stages of reclamation at the mine site, it is planned that <br />18" of seedbed material will be spread on all areas that have had topsoil <br />permanently removed. As of December 1981 one acre of seedbed material had been <br />replaced to the 18" depth. This acreage is located on the embankment slopes of <br />Freshwater Pond lil. In 1982, sediment ponds MB 1, 2, and 3 are presently <br />scheduled to be covered with seedbed material along with landscaping around the <br />permanent buildings on the mine site. <br />Actual Topsoil Removal vs. MbcR Plan Projections _ <br />The M&R Plan (Table 4.4.I.A) indicates at 133,581 cu is yards of topsoil <br />would be removed by the end of 1982 based on a nce of 51.3 acres. By <br />November 1981 virutally all of the permanent topsoil removal disturbance that will <br />occur during the development of the mine has occurred. That disturbance area is <br />8 acres an ,000 cubi yards of topsoil are stockpiled. Table 4 is a comparison <br />of prole ~ removal (Table 4.I.I.A) with the actual topsoil removal. <br />The 42.1 acre-feet of stockpiled topsoil/seedbed material represents 68,000 <br />yd3 of material or about one-half the volume of material projected to be removed <br />in the MCzR Plan. The difference lies primarily in the fact that about one-half (25 <br />vs 28 acres) of the disturbance did not require stockpiling of topsoil but rather only <br />temporary handling as previously described. As a result only about one-halt of the <br />volume of topsoil (42.1 vs 82.8) acre-feet was stockpiled. <br />There does exist an unresolved discrepancy between the calculated actual <br />removal volume of 68,000 yd3 and the surveyed 60,000 yd3. This discrepancy will <br />be readily overcome when the surplus of topsoil is removed from the upper waste <br />rock embankment area and used to offset this apparent difference. <br />6 <br />