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. 0 <br /> Except in limited areas where grading to 3: 1 is practical, the <br /> final configuration of the open pit will contain both near ver- <br /> tical walls and subsided areas at the angle of repose (approxi- <br /> mately 1 . 5: 1 ) . Colluvial action at present has caused much of <br /> the old Cirque dump and access road (discussed in the existing <br /> permit ) to slough into the pit at angle of repose. Expectations <br /> are that this same action will cause other pit wall areas to <br /> slough naturally to 1 . 5: 1 within a reasonably short period <br /> following the end of the mine life. <br /> The rock dump complexes ( "E" dump, McNulty dump, and OP dump ) <br /> are , or will be in the case of the OP dump, engineered and <br /> designed for stability, diversion of runoff , and control of <br /> drainage. Limited ground space and cost considerations <br /> realistically preclude sloping these complexes any flatter than <br /> 1. 5: 1 to 2 : 1. However, where practical and feasible, the upper- <br /> most bank slopes on these dumps will be graded to 2. 5: 1 to 3: 1. <br /> The tailing dam faces (No . 1 dam, No . 3 dam, No. 5 dam ) <br /> currently are, or will be, graded to at least 3: 1 slopes. Pre- <br /> sently, No. 1 dam (Robinson tailing pond) is slightly steeper <br /> than 3 : 1 . As noted under Map ID section B in Appendix D, this <br /> dam will be regraded to 3: 1 and stabilized with rock over the <br /> next seven years. No. 3 dam (Ten Mile tailing pond ) presently <br /> is 3: 1 and will require no additional slope preparation prior to <br /> stabilization. The last tailing dam, No. 5 dam (Mayflower tail- <br /> ing pond) , has been developed at a 4: 1 slope and, likewise, will <br /> require no additional slope grading. <br /> Other important aspects of area specific site preparation <br /> include dismantling and removal of buildings and associated <br /> facility structures. Beginning in 1989 and continuing through <br /> the termination of all operations (end of mine life ) , individual <br /> buildings and structures will be evaluated for short and long <br /> term usefulness and need on an ongoing basis . Those structures <br /> which no longer serve a present or future useful purpose for the <br /> Company will be dismantled or demolished. Wherever feasible, <br /> all or parts of these structures will be sold whole or as scrap <br /> to offset dismantlement/removal costs. Following removal of a <br /> structure, the site will be filled to grade, graded for drainage <br /> and erosion control as needed, and reseeded. <br /> Seeding and Amendments <br /> As stated earlier, extensive and significant research relative <br /> to high altitude reclamation has been conducted on the Climax <br /> Mine property since 1965 (refer: Exhibits Q and R) . The thrust <br /> of much of this research has been to develop a viable, commer- <br /> cially available seed mix and the proper types and amounts of <br /> amendments such as fertilizer and mulch. <br /> E-3 <br />