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Mountain Coal Company, L L C <br />Permit No. 95GU508-5 <br />Final Approval-Modification-1 Colorado Department of Public Health and Environment <br />page 4 Air Pollution Control Division <br />PARTICULATE EMISSIONS CONTROL PLAN FOR MINING ACTIVITIES <br />THE FOLLOWING PARTICULATE EMISSIONS CONTROL MEASURES SHALL BE USED FOR <br />COMPLIANCE PURPOSES ON THE ACTIVITIES COVERED BY THIS PERMIT, AS REQUIRED BY THE <br />AIR QUALITY CONTROL COMMISSION REGULATION NO 1 Section III D 1 b THIS SOURCE IS <br />SUBJECT TO THE FOLLOWING EMISSION GUIDELINES <br />a. Mining Activities - Visible emissions not to exceed 20%. no off-property transport of visible <br />emissions <br />b. Haul Roads - No off-property transport of visible emissions shall apply to on-site haul roads, the <br />nuisance guidelines shall apply to off-site haul roads <br />c. Haul Trucks - There shall be no off-property transport of visible emissions from haul trucks when <br />operating on the property of the owner or operator There shall be no off-vehicle transport of <br />visible emissions from the material in the haul trucks when operating off of the property of the <br />owner or operator <br />Control Measures <br />1. Fugitive particulate emissions will be minimized by West Elk implementing the reclamation measures <br />specified in the Mountain Coal Company, West Elk Mine Mining and Reclamation Plan, No C-80-007, <br />as approved by the Colorado Division of Minerals and Geology, which specifies phased reclamation <br />and rehabilitation of disturbed areas through the establishment of permanent vegetative cover <br />2. Inactive topsoil and overburden stockpiles shall be compacted and revegetated within one year. <br />3. The surface moisture content of the active working area of the coal stockpiles and coal refuse <br />stockpiles shall be maintained at 7 to 10 percent Water shall be applied to any part of a refuse <br />stockpile subject to vehicular activity <br />4. Unpaved haul roads shall be treated with chemicals and watered as often as needed to effectively <br />control fugitive particulate emissions <br />5. Reclamation works and sequential extraction of material shall be initiated to keep the total disturbed <br />areas at any one time to a minimum <br />051/00151015 ver 2/00