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Ail Pmntr Aypiia~an~is rpan.~ao Cod Cpl <br />Controls: Gravel roads (50°6 efficiency) and watering "as needed" (2546 efficiency) • <br />Daily emissions = 7478.14 * 0.25 = 1869.541bs/day (controlled) <br />Annual Haul Truck Emissions <br />For the annual emission factor, the "precipitation days" factor ((365-p)/365) where p =number <br />of days with at least 0.01 inches precip = 65 or 17.8% of the time is included. Trucks will <br />operate 255 work days/yeaz. An assumption is that average precipitation distribution will be <br />similar over the working days. Therefore, the precipitation emissions reduction factor (0.8219) <br />for the 255 working days will be the same as for the entire yeaz. Therefore, the uncontrolled <br />annual haul road emissions will be (daily emissions)*255*0.8219. <br />Loaded Haul Truck Annual Emissions <br />13960.40 lbs/day * 255 days/year * 0.8219 = 2925883.50 lbs/year = 1462.94 tons/yeaz <br />(uncontrolled} <br />Controls: Gravel roads (50% efficiency) and watering "as needed" (25% efficiency) <br />Annual emissions = 1462.94 tons/year * 0.25 = 365.74 tons/year (controlled) • <br />Empty Hau! Truck Annual Emissions <br />7478.14 lbs/day * 255 days * 0.8219 = 1567302.2 ibs/yeaz = 783.65 tons/year (uncontrolled) <br />Controls: Gravel roads (50% efficiency) and watering "as needed" (25% efficiency) <br />Annual emissions = 783.65 tons/year * 0.25 = 195.91 tons/year (controlled) <br />Unloading Coal to Loadout Facility Stockpile <br />Process Description <br />Coal will be end~umped from the haul trucks to the Loadout facility which will coruist of three <br />end dumps encompassing a 250 ft X 100 ft total area. <br />Emission Factor and Controls <br />The emission factor for unloading coal is: <br />[0.36*0.0018*(s/5)*(U/2.2)*(H/5)]/[(M/2)"2 * (Y/6)"0.33] Ib/ton <br /> <br /> <br />