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B.I.c WATER CONTROL <br />The Wright Mine, as it presently exists from the portal to the Lease Tract property line is <br />dry. Exploration drill holes in the area to be mined encountered no significant ground <br />water. If any small amount of ground water is encountered during mining, it will be <br />contained underground in sumps and reused for drilling and dust control. Therefore, no <br />discharge permits are anticipated. If additional water is needed for mining purposes, it <br />will be purchased from a legal source. <br />B.2 VENTILATION, RADIATION CONTROL, AND SECONDARY ESCAPEWAY <br />Cotter Corporation owns a truck mounted emergency hoisting system. The planned <br />ventilation hole into the Wright Mine stope will be of sufficient size to accommodate the <br />emergency escape capsule. <br />An appropriate sized fan will be placed at the vent hole, and underground auxiliary fans <br />and vent bag will be used to supply adequate fresh air to the working faces of the <br />foreseeable development and mining. If development progresses a sufficient distance to <br />necessitate an additional volume of fresh air, other ventilation holes will be designed and <br />this Mining Plan will be correspondingly revised. <br />C.1 SURFACE PLANT <br />All surface disturbance around the Wright Mine portal will be on Cotter's private land. <br />This will consist mainly of a waste rock dump, temporary ore stockpiles, and area for <br />loading trucks. Separate ore stockpiles will be maintained to avoid commingling of any <br />ore mined from Cotter Corporation's private land with that mined from the Lease Tract. <br />Such ore will also be shipped separately from ore mined on the Lease Tract. Office <br />facilities, supply storage, and fuel tanks will be located here. No new permanent <br />buildings will be built. The building and electric substation at the SM-18 Mine portal <br />area will remain for the foreseeable future, and utilized, as needed. <br />Ventilation for the development and mining will require construction of a vent hole, to be <br />drilled from the surface into the Wright Mine stope in the NWl/4 SWI/4 section 27. At <br />the ventilation hole site, the surface facilities will consist of a power pole (or poles), <br />transformer, and fan assembly, probably including a small cement pad, some surface <br />casing, and the fan. Power will be obtained from the nearby San Miguel Power <br />Association distribution line, approximately 900 feet to the southwest. Most of the other <br />poles for the new power line will likely be on Cotter's private land. <br />A water tank and pipe into the mine may also be located within the same 0.12 acres <br />permitted for the ventilation hole or near the portal. <br />C-SM-18 Revised Mining Plan <br />8/30/04 <br />