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<br /> <br />BATES HUNTER MINE LIMITED IMPACT OPERATION APPLICATION <br />Deficiency Responses <br />DEFIC:ENCY RESPONSE 1 <br />It is estimated that approximately 10,000 tons of waste rock will <br />ultimately be placed in the Waste Rock Dump area shown on the <br />Bates-Hunter General Facilities Map. However, the initial waste <br />rock from the mine will be backstowed into the Bates-Hunter mine <br />before it will be placed on the Waste Rock Dump. It may be <br />several years before it will be necessary to place waste rock in <br />the Waste Rock Dump. The rate of mining in the Bates-Hunter mine <br />will determine when waste rock placement will occur. <br />As there will be no run-on of precipitation onto or under the <br />Waste Rock Dump, it is not anticipated that acid generation will <br />be a problem. However, in the event that effluent begins to flow <br />from beneath the Waste Rock Dump, CCCM will trench and channel <br />the effluent to a sump area where the solution will be pumped to <br />the Treatment Pond shown on the General Facilities Map. The <br />solution will then be treated and discharged from the Treatment <br />Pond. <br />DEFICIENCY RESPONSE 2 <br />The Final Clean-up is a pyrite flotation cell. Flotation <br />chemicals, such as Aero 242, 343, and 404, are standard, mostly <br />surface active reagents that are non-toxic in process <br />concentrations and mostly remain with the concentrate fraction <br />rather than in the tailings. <br />DEFICIENCY RESPONSE 3 <br />The statement is based on a characteristic of the process, i.e. <br />flotation. No test data is currently available. CCCM will <br />commit to analyzing the tailings solids and decant solution for <br />ABP, pH, Pb, Zn, Cu, Cd, As, Ni, Ag, Al and Mn. Dissolved metals <br />will b~e run on the liquid fraction. <br />DEFICIENCY RESPONSE 4 <br />The Colorado Department of Health conducted a water quality test <br />of the' ground water below the existing Golden Gilpin mill <br />tailings while it was preparing the "Clear Creek-Central City <br />Phase II Remedial Investigation Report". The results are shown <br />on the enclosed tables. To summarize, the pH of the water below <br />the existing Golden Gilpin tailings is 5.80 with corresponding <br />high sulfate and heavy metal contents. <br />CCCM intends to grind the ore processed in the Golden Gilpin mill <br />