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Page 11 <br />Colorado Department of Public Health and Environment <br />Construction Permit Air Pollution Control Division <br />COLOWYO COAL COMPANY, L.P. <br />Permit No. 95-MF-1040 <br />• Final Approval -Modification-4 <br />ATTACHMENT B <br />PARTICULATE EMISSIONS CONTROL PLAN <br />THE FOLLOWING PARTICULATE EMISSIONS CONTROL MEASURES SHALL BE USED FOR ENFORCEMENT <br />PURPOSES ON THE SOURCES COVERED BY THIS PERMIT, AS REQUIRED BY THE AIIt QUALITY CONTROL <br />COMMISSION REGULATION NO.1. THIS SOURCE iS SUBJECT TO THE FOLLOWING EMISSION GUIDELINES: <br />a. Mining Activities - V isible emissions not to exceed 20%, no off-property transport of visible emissions. <br />b. Haul Roads - No off-property transport of visible emissions shall apply to on-site haul roads, the nuisance <br />guidelines shall apply to off-site haul roads. <br />c. Haul Trucks - No off-property transport of visible emissions except that when operating off [he property of the <br />owner or operator, the applicable guidelines shall be no off-vehicle transport of visible emissions. <br />Control Measures <br />]. Unpaved haul roads shall be treated with chemicals and watered as often as needed to effectively control fugitive <br />particulate emissions. <br />2. Blast hole drills shall be fitted with water injection /dust shroud systems. <br />• <br />3. Additional control measures no less stringent than those specified in Attachment C. <br />4. If more than one control measure apply, the most stringent shall be applicable. <br />081/0007/999 <br />