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• .e rer~c.+noriama~lB. ram ~ corm, <br />H=drop height (ft) = 6 ft average, based on 12 ft. depth of coal rail car <br />M=moisture content (%) = 2.73b from surface mining; 4.3~ from underground mining. <br />Average M: [((780/2418)*2.7) +((1638/2418)*4.3)] = 3.8% (L.orencito Canyon Mine Permit <br />Application submitted to Division of Minerals and Geology, Colorado Department of Natural <br />Resources, Denver, Colorado, December, 1996) <br />Y=dumping devise capacity (yds3) = 15 (L.orencito Canyon Mine Permit Application submitted <br />to Division of Minerals and Geology, Colorado Department of Natural Resources, Denver, <br />Colorado, December, 1996) <br />Annual Emissions <br />Emissions = 0.000667 * 2418000 torts/yeaz = 1,612.81 lbs/year = 0.81 toes/year <br />Rail Transport of Coal <br />Process Description <br />• Coal will be transported by rail from the Lorencito Canyon Mine I..oadout facility to the New Elk <br />Processing Plant, a distance of 8.1 miles. Uniu of up to 25 100-ton cars will be shuttled to the <br />New Elk Mine for processing. <br />Emission Factor and Controls <br />The emission factor for transporting coal is: <br />0.5*0.000057 Ib/ton mile (APCD Fugitive Particulate Emissions, Appendix E) <br />No controls aze practicable. <br />Annual Emissions <br />Annual emissions = 0.5 * 0.000057 ]b/ton mile * 2,418,000 tons/year * 8.1 miles = <br />558.19 Ib/year = 0.28 tons/year <br />Miscellaneous Vehicles <br />Process Description <br />• In addition to haul truck traffic, other vehicles are needed for mining activities. These vehicles <br />consist of water trucks, maintenance and diesel fuel refueling trucks, and supervisory pickup <br />trucks. <br />.,,.,,,,,.~~., ~o. ~~ 26 <br />