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Mike Clements <br />Wildcat Mining Corporation <br />3643 Baker Street <br />San Diego, CA 92117 <br />0;4,. v1a J,? <br />0?9 <br />?a ear ? <br />Wally Erickson ?asae o <br />Division of Reclamation Mining and Safety <br />?- <br />691 CR 233, Suite A-2 <br />Durango, CO 81301 <br />Pagel of 3 <br />September 12'h, 2009 <br />Subject: Technical Revision to the May Day Mine Permit 110(2) (reference M-1981-185). <br />Dear Mr. Erickson: <br />Wildcat Mining Corporation (WMC) is submitting a `technical revision' (TR) to the permit conditions <br />associated with the May Day Mine permit (M-1981-185). The following provides a summary of the <br />additional activities at the May Day which involve the assembly and use of an underground mill facility <br />that includes crushing, grinding, gravity, flotation, tailings disposal, and additional water quality <br />monitoring. <br />All conditions and uses of the surface acreage within the permit boundary will not change. The <br />production capacity of the mill will not affect the permit conditions already describing the waste <br />rock and ore processing activities of the site. <br />• The proposed activities will not affect the hydrologic balance of the project area since only a <br />small amount of underground water is necessary for the proposed operations. Regardless, as a <br />pro-active measure we are proposing additional sampling to monitor the setting where needed. <br />The proposed activities will not change the designated materials aspect of the current permit <br />conditions since no toxic or acidic reagents will be used in the grinding or flotation processes (see <br />Attachment B for the MSDS sheets). <br />Facility Specifications: <br />The underground facility will be operated in a newly constructed underground drift and will have the <br />operating capacity of 50 tons per day. The dimensions of the drift can be increased depending on needs <br />but will be a minimum of 15 ft. wide, 13 ft. high, and 100 ft. long with steel sets placed every 4 ft. down <br />the length of the drift. All underground construction will be completed in accordance to current MSHA <br />requirements. <br />Total water requirements for the facility will consist of approximately 40 gallons per minute. Of this <br />requirement, over 30 gallons per minute will be recycled from the tailings filtration, leaving only 10 <br />gallons per minute of fresh, make-up water to be consumed during processing. This water will be stored <br />underground in two, 5,000 gallon tanks. The water source will be from the water that is present in <br />underground workings at the May Day and may also be hauled in on an as-needed basis from the seep <br />located within the Idaho permit boundary (see Attachment A, Water Rights held by WMC). <br />Technical Revision to the May Day Mine Permit, September 12, 2009.