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Bestway Concrete Colorado Department of Public Health and Environment Permit No. 07POl 184 Air Pollution Control Division Initiai Approval Paae 6 PARTICULATE EMISSIONS CONTROL PLAN FOR MINING 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.1, Section III.D.1.b. THIS SOURCE IS SUBJECT TO THE FOLLOWING EMISSION GUIDELINES. a. Processing 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. C. 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. Emissions from material handling (i.e. loading and hauling) shall be controlled by watering at all times unless natural moisture is sufficient to control emissions. 2. Vehicle speed on unpaved roads and disturbed areas shall not exceed a maximum of 15 m.p.h. Speed limit signs shall be posted. 3. Unpaved haul roads shall be treated with a chemical stabilizer and watered as often as needed to control fugitive particulate emissions. 4. Material stockpiles shall be watered as necessary to control fugitive particulate emissions. Aggregate materials shall be sprayed with water during material loading into storage bins or stockpiles. 5. Plant entryway, truck service roads, and concrete batching areas shall be graveled. Watering shall be implemented if dust problems occur.. AIRS Point ID: 777/30791001 ver. 2100