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EXHIBIT 13C <br />Collom Pit and Temporary Spoil Pile <br />Tables 13C-23 through 13C- 27 provides the volumes necessary to backfill, regrade and reclaim <br />the Collom box cut and temporary spoil pile through the end of year 2020. <br />Table 13C-23 Collom Pit Backfill <br />Cut (Cubic <br />Area <br />Yards) <br />Collom Pit 19,788,600 <br />Table 13C-24 Tempora <br />Total (Cubic <br />Area <br />Yards) <br />Temporary Spoil Pile 13,500,000 <br />Area <br />Spoil Pile Removal <br />Haul Distance <br />(feet) <br />3,940 <br />Table 13C-25 Collom Pit and Temporary S <br />Topsoil Replacement <br />Acres <br />Volume (Cubic <br />Disturbed <br />Yards) <br />Collom Pit & 1 419.5 1 617,738 <br />Temporary Spoil <br />Pile <br />Average Grade <br />N <br />it Pile Topsoil <br />Haul Distance Average <br />(feet) Grade (%) <br />5,144 1 3 <br />Table 13C-26 Collom Pit and Temporary Spoil Pile Re, <br />Area Acres to be Reseeded <br />Collom Pit & 433.5 <br />Temporary Spoil Pile <br />Volume 20 Page 16 Revision Date: 3/19/18 <br />Revision No.: TR -118 <br />