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5. Surface Mine Equipment <br />The following equipment may be used for the surface mining of the Last Chance Mine area. <br />• Dozer - Cat D5M <br />Loader - Cat 938 H <br />• Ore Buggy (5 yard - as needed) <br />• Flat-Bed Truck with 350 gal water tank, <br />• Pickup Truck with fuel tank, 3/4 ton <br />• Additionally, the exploratory drilling <br />1 ton <br />operations will use the following mobile <br />equipment: <br />• 10 wheel, self leveling drill rig equipped for air rotary drilling <br />• A truck mounted compressor to supplement air for the drilling rig if needed <br />• A water truck equipped with hoses and road watering sprays to mitigate dust (and assist <br />in fire fighting if needed) <br />• Pickup truck with fuel tank and hole plugging supplies, 3/4 ton <br />Notes: <br />(a) Highway ore-hauling trucks will be provided by a contractor on an as needed basis. <br />(b) Miscellaneous rental and contract equipment will be brought to the Last Chance Mine site as <br />needed, including surveying, welding, drilling, material delivery trucks, and concrete and gravel <br />trucks. <br />6. Air Pollution Emission <br />The mining activities at the Last Chance Mine were reviewed and annual emissions calculated <br />for NOx, CO and particulate for each of the sources. The sources were identified as heavy <br />equipment, excavation / material transfer, and haul road activities. Through this evaluation it <br />was determined that no Air Pollution Emission Notice (APEN) was required as the sum of <br />sources did not exceed five tons of emissions for the criteria pollutants. <br />As detailed in Appendix H, the heavy equipment was calculated to emit 0.81 tons of NOx, 0.39 <br />tons of CO, and 0.03 tons of particulate annually. The construction and materials handling will <br />emit 0.0064 tons of PMIO and 0.00096 tons of PM2_5. The haul road activities will emit 0.094 <br />tons of PMio and 0.014 tons of PM2.5. Total emissions were estimated at 1.35 tons per year. <br />7. Surface Drainage Control Structures <br />The surface area to be disturbed in the mine staging/facilities area covers about 2.46 acres. The <br />limited available topsoil will be stockpiled for reclamation. The current waste rock dump is <br />located about 200 feet southwest of the mine portal and covers about 0.3 acres. This dump will <br />grow south and westward with expanding mine operations and may cover as much as 0.68 acres. <br />A berm will be constructed on the south side of the Waste Rock Area to prevent run-on from the <br />rising slope to the south, although most of the water will be diverted by ditches on both sides of <br />Montrose County Road DD 16. A berm will be constructed around the south and east perimeter <br />Last Chance Mine -April 2009 <br />D-4