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airborne. A luffing and slewing radial stacker will be utilized to build the • <br />coal stockpile. This type of a stacker minimizes the free-fall distance of coal <br />from the stacker unit to the storage pile. The coal pile will be watered (if <br />necessary, with a water-surfactant mixture) and controlled with ambient <br />conditions, specifically snow and freezing condition s in winter. When haul <br />trucks are loaded, coal dust will be controlled by minimizing the free-fall <br />distance from the loadout bin to the trailers. <br />The gravel-surfaced access roads will be regularly graded in order to maintain a <br />surface free of loose material and potholes, and will be watered to control <br />fugitive dust emissions. If necessary, chemical suppressants will be used. The <br />new, onsite haul road (HGLF-HR2) will be gravel-surfaced, regularly graded and <br />watered to control dust emissions. _ If necessary, this road will be treated with <br />chemical suppressants. The speed of haul trucks using the loading loop will be <br />kept under 15 miles per hour. The Tie-Across Haul Road, which will be used to <br />haul coal from Loadout facility to the Hayden Station Power Plant, is regularly <br />maintained by Seneca Coal Company as part of the coal haulage from the Seneca <br />II-W Mine. If necessary, HGTI will provide additional maintenance on this <br />private road. <br />These activities address the significant sources of fugitive dust emissions at <br />the Hayden Gulch Loadout facility. These sources will be effectively controlled <br />by the practices described. As a result, the emission of fugitive dust will not <br />present a significant impact on the ambient air quality in the near vicinity of <br />the loadout facility. <br />Attachment 22-1B presents Construction Permit OSR00020 - Initial Approval), an <br />air emission permit application (aee Appendix 22-1A for the accompanying impact <br />analysis and Air Emission Pollution Notice [ADEN] application) for the 2,000,000 <br />ton per year railcar unloading/truck haulage operation. Construction Pezmit <br />OSRO0020 was issued by APCD on August 23, 2005. It is valid for 18 months, or <br />until February 23, 2007. <br />• <br />MR-13 2 Revised 09/05 <br /> <br />