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• 13. Seeding, Mulching, and Blocking of Packrat Road <br />The backfilled surface will be reseeded as segments of road are reclaimed, since there will be no future <br />access. The methods are the same as that described for the Packrat Portal area in Section 11 of this <br />Exhibit. As measured from Figure E-1, the width of area to be reseeded is 25 feet times the road length <br />of 1,660 feet = 41,500 square feet (sf) or 0.95 acres. <br />Boulders salvaged from the road berm will be placed across the road entrance to discourage access by <br />• <br />recreational vehicles. This work will be done with a front end loader. <br />14. Rip Compacted Traffic Areas of Whirlwind Mine Prior to Topsoiling <br />The Whirlwind portal bench, access roads, facility areas and top of waste embankments will be ripped <br />to a depth of 2.5 feet prior to topsoiling to relieve compaction from vehicle traffic. The total area to be <br />ripped is 7.41 acres. <br />15. Topsoil Replacement on Remaining Areas of Whirlwind Mine <br />As shown on Map F, the remaining areas that will require topsoiling at the end of the mine life are the <br />water treatment area, called Area #2, which is 2.35 acres in size. The Whirlwind portal bench, and the <br />eastern portion of the waste embankment are called area #1, which is 5.72 acres in size. The total area <br />for re-topsoiling is 8.07 acres. The replacement thickness is from 12 to 16 inches with an expected <br />average of 14 inches, therefore, the volume to be spread and graded is 15,189 cubic yards. <br />The required topsoil will be obtained from the following stockpiles: <br />Main Stockpile north of County Road: 7,182 cy. <br />Stockpile near Water Treatment Area: 4,214 cy. <br />Stockpile at portal bench: 3,928 cy. <br />Total available: 15,324 cy <br />Whirlwind Mine 07 (rev. April 08) E-14 <br />