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c) NPDES sites (sediment pond outlets) were to have monthly maintenance, <br />service, flow measurements, field parameters, and quarterly full suite water <br />quality samples. The ponds were removed in 2008. <br />G. Transfer of Wells (4.05.14) <br />The applicant has not requested the transfer of exploration or monitoring wells. <br />(4.05.14 (2)). <br />H. Probable Hydrologic Consequences <br />Probable Hydrologic Consequences of the mine's operations are detailed in Section <br />2.05.6(3) of the RN -04 Abridged Permit Document. <br />IV. Topsoil — Rule 4.06 <br />Topsoil Stockpiles #4 and #7 were approved for retention as permanent features under TR- <br />16 in June 2010. The Division determined that a sufficient thickness of topsoil had been <br />distributed upon the reclaimed areas and that leaving the stockpiles in place would not <br />hinder achievement of approximate original contour. <br />V. Sealing of Drilled Holes and Underground Openings — Rule 4.07 <br />The Division will require that each hole, well or other underground opening be capped, <br />sealed, backfilled, or otherwise properly managed (4.07.3). Two wells (PW 1/82 -4 and 95- <br />1) have yet to be sealed; all other wells have been sealed to the satisfaction of the Division <br />of Water Resources. <br />VI. Use of Explosives — Rule 4.08 <br />Explosives were used in the early 1980s under the original mining permit. No blasting has <br />occurred since the issuance of the current Carbon Junction Mine permit. <br />VII. Disposal of Excess Spoil — Rule 4.09 <br />A. The Division approved the use of a disposal area for excess spoil (4.09.1(1)). <br />B. The Division reviewed the design for the fill and previously approved it (4.09.1(2)). <br />C. The Division approved of the location of the disposal area — within the Carbon <br />Junction drainage (4.09.1(6)). <br />D. The underdrain system was constructed simultaneously with excess spoil placement <br />by the natural segregation of dumped materials. The resulting underdrain system is <br />capable of carrying anticipated seepage from rainfall as well as springs and seeps <br />19 <br />