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Nuvemco, LLC's Monogram Mine M-1978-222UG <br />Response to Preliminary Adequacy Review <br />March 10, 2009 <br />the plan and increase depth of levels removed incrementally. The last paragraph of page D-2 in <br />the reclamation section should be modified as follows: <br />The surface ore body is estimated to cover approximately one acre and range from 2 to 15 feet <br />thick. Samples of the ore rock and the cap rock (from area shown in Photograph 3) were <br />submitted to Evergreen Analytical for chemical analyses which are included as Appendix B. <br />Only small sections about 30 feet by 30 ft by 5 feet deep will be mined at a time, which is 4,500 <br />cubic feet or about 320 tons. Thus, removing waste rock and breaking up a section of ore is <br />estimated to take about two weeks. Contract ore trucks will be called as needed to ship the ore. <br />Assuming about 10,000 tons of ore in place at the Monogram Mine, ore removal could require <br />about three years. With some reclamation occurring concurrently (i.e. waste rock replaced in <br />mined out areas), the removal of ore and restoration of the Monogram Mine area could be <br />accomplished within six months after the mining is complete. Recognizing weather delays and <br />potential equipment failures, plus other unknown factors, Nuvemco estimates about 42 months <br />for the completion of the Monogram Mine surface mining operation. <br />Similarly, the last paragraph of page E-2 in the reclamation section should be modified as <br />follows: <br />"Reclamation of the exploration and development efforts will be complete within six months of <br />termination of mining efforts. In the event that further underground mining is warranted, a <br />technical revision will be prepared and include revised reclamation costs and timetables." <br />No details are given in regard to the ore bin area. The area should be isolated fi-orn all unauthorized vehicles. <br />It is understood that the bins have stonnwater controls for 100% retention. However truck loading and other ore <br />handling activities require that the area have zero run-off w well. Please submit detailed plans noting what <br />activities will take place, how big of an area will be designated for these activities and stotmwater controls <br />specific to this area. <br />As described previously, a new Map C-2(b) has been drawn and three photographs are included <br />illustrating the ore bin location and planned construction of berms and ore bins and low water <br />crossing. The staging area has a gentle northeastern slope and will be utilized for the office and <br />storage units, vehicle and equipment parking, and the ore bins. This 0.74 acre area will have an <br />earthen berm surrounding it to prevent run-on and runoff with a detention pond designed to hold <br />runoff minimizing siltation and erosion. This detention pond will have a native rock rip-rap <br />armored overflow to control major storm run-off. Entry by ore trucks and vehicles will be across <br />a broadened ramp to keep the berm continuous and intact. A low water crossing at the start of <br />the ore haulage road up to the Monogram Knob mining area will control road ditch flows and <br />direct runoff towards the natural drainage below the detention pond. <br />A second full containment berm will be constructed surrounding the ore bin and ore truck <br />loading area. Signage will note that access is for authorized vehicles only. Ore bins as shown on <br />Map C-1 are 40 feet by 35 feet including the entry apron. The loading area is 40 feet by 50 feet <br />resulting in a total containment of 3,400 square feet. A sump area will be constructed at the west <br />end of the bins with prefabricated vessels for containment of any runoff from this area. This <br />interior berm will surround about 0.08 acres in size and have zero runoff which reduces the <br />storm water contribution to the outer staging area berm. <br />4