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• <br />f ' <br />LJ <br /> <br />B. <br />*Used for site construction <br />Maximum stored at one time 929,600 tons. <br />Length of time pile remains undisturbed 20 Years <br />Proposed control for overburden stockpile: (check appropriate boxes) <br />^ Watering times/day, or continuous sprinkler (to <br />maintain moist surface). <br />^ Chemical stabilizer (Type: ). <br />^ Compacting of piles, method <br />^ Enclosures: complete, or partial (check one) <br />0 Revegetation, (Length of time till revegetation 1 Year ), <br />® Other (specify) moist material <br />^ No control <br />III. DRILLING <br /> <br />MATERIAL <br />OVERBURDEN <br />ROCK <br />COAL OTHER <br />No. of holes drilled per day 356 <br />No. of days of drilling per year 60 <br />Hours of drilling per year 1200 <br />Proposed controls no control <br />Controls include: Water injection, chemical dust suppressants, bag <br />collectors, other (specify), no control <br />IV. BLASTING <br /> <br />MATERIAL <br />OVERBURDEN <br />ROCK <br />COAL OTHER <br />No. of blasts per day 2 <br />No, of blasts per year 120 <br />No. of blasting days per year 60 <br />Proposed controls no control <br />Is sequential blasting used: ~ Yes ^ No (check one) <br />s <br />r <br />