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Bowie Resources, LLC Colorado Department of Public Health and Environment <br />Permit No. 06DL1082F Air Pollution Control Division <br />Initial Approval — Modification 1 <br />PARTICULATE EMISSIONS CONTROL PLAN FOR MINING AND PROCESSING 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 <br />THE AIR QUALITY CONTROL COMMISSION REGULATION NO.1, SECTION III.D.1.b. THIS SOURCE <br />IS SUBJECT TO THE FOLLOWING EMISSION GUIDELINES: <br />a. Mining and Processing Activities - Visible emissions not to exceed 20 %, no off - property transport <br />of visible 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 visible <br />emissions from the material in the haul trucks when operating off of the property of the owner or <br />operator. <br />Control Measures <br />1. Adequate soil moisture must be maintained in topsoil and overburden to control emissions during <br />removal. Watering shall be implemented if necessary. <br />2. Topsoil and overburden stockpiles shall be compacted and revegetated within one year. <br />3. Emissions from material handling (i.e. removal, loading, and hauling) shall be controlled by <br />watering at all times unless natural moisture is sufficient to control emissions. <br />4. Vehicle speed on unpaved roads and disturbed areas shall not exceed a maximum of 30 m.p.h. <br />Speed limit signs shall be posted. <br />5. Vehicle speed on haul roads and service roads shall be restricted to 30 miles per hour. Speed limit <br />signs shall be posted. <br />6. Unpaved haul roads shall be watered as often as needed to control fugitive particulate emissions <br />such that the above guidelines are met. <br />7. Reclamation works and sequential extraction of material shall be initiated to keep the total <br />disturbed areas at any one time to a minimum. <br />8. Material stockpiles shall be watered as necessary to control fugitive particulate emissions. <br />Aggregate materials shall be sprayed with water during material loading into the storage bins or <br />stockpiles. <br />9. Plant entryway, truck service roads, and concrete batching areas shall be graveled. Watering shall <br />be implemented if emission guidelines above are not met. <br />029/0049/018 <br />10l jr r <br />Page 9 <br />