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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 approximately 2020. <br />Table 13C-23 Collom Pit Backfill <br />Cut (Cubic <br />Area <br />Yards) <br />Collom Pit 13,500;000 <br />Table 13C-24 Temporary Spoil Pile Removal <br />Total (Cubic Haul Distance Average Grade <br />Area <br />Yards) (feet) (%) <br />Temporary Spoil Pile 13,500,000 3,940 3 <br />Area <br />Table 13C-25 Collom Pit and Temporary Spoil Pile Topsoil <br />Topsoil Replacement Haul Distance <br />Acres <br />Disturbed Volume (Cubic (feet) <br />Yards) <br />Collom Pit & 1 419.5 617,738 , 5,144 <br />Temporary Spoil <br />Pile <br />Table 13C-26 Collom Pit and Temporary Spoil Pile,R etati <br />F__ Area �� Acres to be Reseeded I <br />Collom Pit & <br />Temporary Spoil Pile <br />502.5 <br />Average <br />Grade (%) <br />3 <br />Volume 20 Page 16 Revision Date: 5/15/18 <br />Revision No.: RN -07 <br />