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The following equipment may be used for the surface mining of the Last Chance Mine area. <br />• Dozer - Cat D5M <br />• Excavator - Cat 315 CL <br />• Loader - Cat 938 H <br />• Ore Buggy (5 yard - as needed) <br />• Flat-Bed Truck with 350 gal water tank, 1 ton <br />• Pick-up Truck with fuel tank, 3/4 ton <br />• Additionally, the exploratory drilling 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 />• Pick-up Truck with fuel tank, 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 Monogram Pit were reviewed and annual emissions calculated for <br />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 none of the <br />sources exceeded two tons of emissions for the criteria pollutants. <br />As detailed in Appendix I, the heavy equipment was calculated to emit 1.04 tons of NOx, 0.53 <br />tons of CO, and 0.04 tons of particulate annually. The construction and materials handling will <br />emit 0.87 tons of PM10 and 0.13 tons of PM2.5. The haul road activities will emit 1.91 tons of <br />PM 10 and 0.29 tons of PM2.5. <br />7. Surface Drainage Control Structures <br />A berm will be constructed on the south side of the Waste Rock Areas 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 />of the ore to direct any potential run-off from the waste rock pile to a sediment pond constructed <br />in the low lying area north of the office trailer. A ditch and/or slight berm will be constructed on <br />the up-gradient side of the haul road for drainage control as shown on Map D-1. <br />Last Chance Mine - April 2009 <br />D-4