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u <br />SECTION 2.05.6(3)(b)(v) <br />HYDROLOGIC RECLAMATION PLAN <br />Introduction <br />The hydrologic reclamation plan is presented in two parts. The first part focuses on specific <br />practices which are conducted to minimizethe impact of mining on the hydrologic balancewithin and <br />adjacent to the leasehold. The second part addresses those impacts that may occur regardless of <br />these practices. The emphasis of the second part is on the monitoring of the extent and magnitude <br />of mining impacts. Where possible, reference has been made to those sections which contain <br />details regarding certain practices. <br />Practices Employed to Minim¢e the Impacts of Mining on the Hydrologic System <br />Ground Water Quality. The mining practices that involve replacement of spoil material into mine pits <br />are detailed in Section 2.05.4(2)(c), Backfilling and Grading. Topsoil and overburden handling plans <br />• are detailed in Section 2.05.4(2)(d), Topsoil (Redistribution). Based on extensive analysis perfom~ed <br />on lithologic and groundwater data (see Section 2.04.6, Geology Description and Section 2.05.6(3), <br />Protection of the Hydrologic Balance), it was found that no acid or toxic materials are present in <br />significant amounts in the New Horizon 2 mining area and that replaced spoil will only have a <br />minimal short term impact on ground water quality. Because of these findings, no special handling <br />of materials is anticipated for mining operations conducted. <br />Each exploration hole, other drill or borehole, well, or other exposed underground opening except <br />those used solely for surface blasting v~ill be plugged or sealed to prevent acid or toxic drainage from <br />entering the ground water, minimize disturbance to the prevailing hydrologic balance, and ensure <br />safety. Any holes, wells or other exposed underground opening that will be temporarily inactive but <br />eventually used for mining related purposes will be temporarily sealed at the surface and secured <br />and protected for safety by surface structures or barricades. <br />Permanent sealing of holes, wells or other exposed underground openings not completed to aquifers <br />will be sealed by replacing cuttings or other suitable media in the hole. A suitable plug will be placed <br />• (REVisEO32ass> 2.05.6(3)(b)(v) - 1 <br />