2018-08-03_PERMIT FILE - C1981019A (2)

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ATTACHMENT B 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 WHICH MAY BE ENFORCED ONLY AS PROVIDED IN REGULATION NO. 1 Section III.D.1.e: a. Mining 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. Blasting Activities - Only the no off -property transport emission limitation guideline shall apply to blasting activities. (Reference: Regulation Number 1, Section III.D.2.i.(iii)) 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 stockpiles shall be compacted and revegetated within one year of placement. 3. Emissions from material handling (i.e. removal, loading, and hauling) shall be controlled by watering unless natural moisture is sufficient to control emissions. 4. Unpaved haul roads shall be treated with chemical stabilizer per manufacturer's recommendations and watered as often as needed to control fugitive particulate emissions. This control measure does not apply to haul roads located at the base of the pit which are created on a temporary ad hoc basis. These in -pit roads shall be watered as needed to control fugitive particulate emissions. 5. Reclamation works and sequential extraction of material shall be initiated to keep the total disturbed areas at any one time to a minimum. 6. Coal stockpiles shall be treated with chemical crusting agents and watered as needed to control fugitive particulate emissions. 7. Drilling of overburden for blasting, shall employ hoods and water spray units. Coal drilling shall utilize deflector plates to localize particle distribution around each drill hole. 8. Sequential blasting shall be implemented for particulate reduction. No blasting shall take place when wind speeds exceed 30 MPH. ®� COLORADO Air Pollution Control Division Page 21 of 22