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Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />- MINING OPERATIONS - <br />X Compacting Of Piles <br />❑ Enclosures (Complete or Partial) <br />❑ Revegetation Revegetation Must Occur Within One Year Of Soil Disturbance <br />Armoring by boulders/large cobbles. Stockpile consists of shot <br />material, mostly large rocks and gravel material. Natural <br />X Other (specify) reve &etation will occur. Stockpile is very stable with respect to <br />fugitive dust emissions. <br />E. DRILLING <br />Number Of Holes Drilled Per Day: <br />50 <br />Number Of Holes Drilled Per Year: <br />12,470 <br />Proposed Controls For Drilling: <br />• Bag Collectors <br />• Other (specify) <br />Skirts <br />F. BLASTING <br />Number Of Blasts Per Day: <br />1 <br />Number Of Blasts Per Year: <br />105 <br />Type of Blasting Material Used: <br />ANFO <br />Tons of Blasting Material Used: <br />1,750 <br />Hours Of Emissions Per Day: <br />1 <br />G. RAW MATERIAL REMOVAL <br />Maximum Tons Removed Per Day: <br />2200 <br />Tons Removed Per Year: <br />425,000 <br />Drop Height: <br />8 Feet <br />Specify Moisture Content: <br />6 %, (if known) <br />Proposed Controls For Raw Material <br />Removal: <br />❑ Moist Material <br />❑ Water Spray <br />❑ Other (specify) <br />H. RAW MATERIAL STOCKPILE(S) <br />Maximum Stored At One Time: 4000 short tons for less than 30 days <br />Proposed Controls For Raw Material Stockpile: <br />❑ Watering Times /Day <br />❑ Chemical Stabilizer <br />• Compacting Of Piles <br />• Enclosures Type: (Complete or Partial) <br />• Revegetation Revegetation Must Occur Within One Year Of Soil Disturbance <br />X Other (specify) Water as needed <br />3 <br />