2013-10-28_PERMIT FILE - C1996083A (3)

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Colorado Department of Public Health and Environment Air Pollution Control Division Bowie Resources, LLC — Bowie No. 2 Mine Surface Activities Permit No. 03DL0923 Initial approval — Modification -2 PARTICULATE EMISSIONS CONTROL PLAN FOR MATERIALS HANDLING ACTIVITIES THE FOLLOWING PARTICULATE EMISSIONS CONTROL MEASURES SHALL BE USED FOR COMPLIANCE PURPOSES ON THE ACTIVITIES COVERED BY THIS PERMIT, AS REQUIRED BY THE .AIR QUALITY CONTROL COMMISSION REGULATION NO.], Section III.D.I.b. THIS SOURCE 1S SUBJECT TO THE FOLLOWING EMISSION GUIDELINES: Materials Handling Activities - Visible emissions not to exceed 20% opacity, no off - property transport of visible emissions. b. Haul Roads - No off-property transport of visible emissions shall apply to on -site haul roads, the nuisance guidelines shall apply to off -site haul roads. Haul Trucks - There shall be no off - property transport of visible emissions from haul trucks when operating on the property of the owner or operator. There shall be no off - vehicle transport of visible emissions from the material in the haul trucks when operating off of the property of the owner or operator. Control Measures 1. .Adequate soil moisture must be maintained in topsoil and overburden to control emissions during removal. Watering shall be implemented if necessary. 2. Topsoil, overburden, and coal mine waste (gob) stockpiles shall be compacted, treated with chemical stabilizers as per manufacturer's recommendations; and watered as required to effectively control the emissions. Stockpiles shall be revegetated within one year. 3. Emissions from material handling (i.e. removal, loading, and hauling) shall be controlled by Watering at all times unless natural moisture is sufficient to control emissions. 4. Vehicle speed on unpaved roads and disturbed areas shall not exceed a maximum of 15 miles per hour. Speed limit signs shall be posted. 5. unpaved haul roads shall be graveled, treated with chemical stabilizers as per the recommendations of the manufacturers, and watered as often as needed to effectively control fugitive particulate emissions. 6. Reclamation works and sequential extraction of material shall be initiated to keep the total disturbed areas at any one time to a minimum. ?. Activities that result in fugitive particulate matter emissions shall be suspended when the wind speed exceeds 25 miles per hour. With the self - certifi cation, a plan of action shall be submitted detailing how this .+ill be achieved. :IRS Point !D: 029:00491016 Paae 4 o'15