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Wally Erickson <br />June 28, 2010 <br />Page 11 <br />designated disposal area. One final separation table will produce the final shipping product. <br />Chemical fate of the mineral processing chemicals is presented in the Exhibit C, Mine Plan, <br />Section 1(e). <br />Water will be recycled to the plant. Reagents to be used in mineral processing are <br />conventional products used to wet and disperse the fine particles, stabilize pH and promote <br />froth formation (see Exhibit C, Mining Plan, Section 1(m)). NO cyanide, mercury <br />amalgamation or roasting of ores will be used. <br />Additional information responsive to Rule 6.3.3(2)(a), including information <br />regarding chemical types and quantities to be utilized, chemical storage and spill <br />containment, and emergency response plans for on-site spills, is provided in Attachment 7. <br />21. Pursuant to Rule 63.3(2)(d), please provide engineering designs and drawings <br />for the steel set portal entry at Level 1, as necessary for the Office to review <br />and approve the structure. <br />Response to Adequacy Issue No. 21: Wildcat Mining has attached hereto as <br />Attachment 21 copies of engineering designs and drawings for the steel set portal entry at <br />Level 1 for Office review and approval. <br />22. Pursuant to Rule 6.3.3(2)(d), please provide specific design details for the tail <br />transport systems and specific disposal location for the tailings. <br />Response to Adequacy Issue No. 22: Wildcat Mining will dispose the processed <br />mine rock in a stope located approximately 800 feet from the May Day No. 1 mine portal as <br />provided in the Exhibit C-Mine Plan. Based on the Thompson Well data, the 43101 <br />Technical Report for the May Day Mine, and the written opinion of Dr. David Gonzalez, <br />2010, the stope is located approximately 500 feet above groundwater and approximately <br />400 feet above the Idaho No. 2 drift. See Attachment 4. <br />Exhibit D Reclamation Plan, Rule 6.3.4. <br />23. Pursuant to Rule 6.3.4(1)(b), please provide a justification that supports final <br />slopes being steeper than 3H.•1 V and which demonstrates compliance with the <br />performance standards of Rule 3.1. <br />Response to Adequacy Issue No. 23: With the exception of the bench out slopes <br />and the portal face, slopes will be reclaimed to 3H: IV vertical or to slopes no steeper than <br />the existing topography where natural slopes of 1 H:1 V exist. See Attachment 23. Mine <br />closure activities are designed adopting the following guidelines: <br />0 minimizing disturbances to the hydrologic balance.