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Wally Erickson <br />June 28, 2010 <br />Page 5 <br />Response to Adequacy Issue No. 4: In response to Adequacy Issue No. 4, Wildcat <br />Mining incorporates by reference its June 7, 2010 responses to Adequacy Issues No. 2 and <br />8 in DRMS' June 4, 2010 letter response (the "Second Adequacy Letter for the Idaho <br />Mine") to Wildcat Mining's adequacy submittals for the Idaho Mine dated June 1, 3 and 4, <br />2010 (the "First Idaho Adequacy Response"). <br />Wildcat Mining states further that mined rock (not tailings, by definition) will be <br />discharged by a conveyor or front end loader to a shrink stope approximately 800 feet from <br />the mine portal and located on the north side of the May Day No. 1 portal entry. See <br />Attachment 4, Exhibit E-5. The shrink stope disposal area is dry, and the water table is at <br />least 300 feet below the rock repository. See Attachment 4 (Gonzalez, 2010). Wildcat <br />Mining's understanding of the depth to groundwater from the May Day No. 1 portal is also <br />informed by information newly obtained from a well located adjacent to the Lower Idaho <br />mine portal. The well (recently found at an elevation of 8,800 feet) was permitted in 1974 <br />and drilled for Mr. Earl L. Thompson (the "Thompson Well") to a depth of 116 feet <br />(bottom hole elevation is 8675 feet) where the static water level is located at 75 feet. The <br />screen depth ranges from 98 to 105 feet. Since the elevation of the May Day No. 1 is <br />approximately 9,200 feet, Wildcat Mining submits based on the information it has obtained <br />from the Thompson Well and from the Gonzalez report that the depth to water from the <br />May Day No. I portal to groundwater is approximately 500 feet and estimated depth to <br />water from the bottom of the stope (Elevation 9,140 feet) to be used for mine rock disposal <br />is 340 feet. Therefore, based on the Thompson Well information and the groundwater <br />information provided by Gonzalez, Wildcat Mining does not anticipate that the mined rock <br />will be disposed in saturated conditions. See Attachment 4. <br />Wildcat Mining has attached hereto as a copy of a revised Exhibit B to its permit <br />application, which contains a description of a proposed Spring and Seep Survey Plan. <br />5. Pursuant to Rule 6.3.2(c), please describe the underground relationship between the <br />Idaho Mine and the May Day Mine, specifically addressing any hydrologic <br />connection, man-made or otherwise. <br />Response to Adequacy Issue No. 5: In response to Adequacy Issue No. 5, Wildcat <br />Mining incorporates by reference its June 7, 2010 responses to Adequacy Issues No. 2 and <br />8 in DRMS' Second Adequacy Letter for the Idaho Mine. <br />Wildcat Mining states further that Rule 6.3.2(c) requires a description of the water <br />resources in the area of the proposed operation and the identification of any aquifers that <br />would receive drainage directly from the affected area. Based on the design of operations <br />at the May Day Mine, Wildcat Mining does not anticipate that the groundwater will receive <br />"drainage from the affected area." Mined rock will be disposed underground either in bulk <br />or slurry. Rock disposal will not be disposed in a saturated environment and the amount of <br />moisture in the crushed rock will range between 15 and 40%. The estimated amount of <br />water entering the disposal area during ore processing will be equal to or less than 10 gpm. <br />Chemicals associated with disposal activities will be of such low concentrations that