Laserfiche WebLink
TWENTYMILE COAL COMPANY <br />BLAST DESIGN <br />Blast Location - Twentvmile Coat Company TSN R86W Section 31 SWl/4 <br />Purpose of Blast - Break-up rock in foundation excavation for coal bunker <br />Blast Date(s) - 11/15/06 throual-11/18/06 <br />Certified Blaster Responsible - Mike Miller <br />Certification Number - 1-107-2249 <br />Typical Drill Pattern - <br />~ ~6° 'i <br />,. <br />~0~ <br />J~~~ :9ci/UC- ~y~~.:` ~ ~' .a,c'%'.cf'/7~~~.5.~5'G'i,'' <br />Drillhole Depth/Diameter - 14 fU3 in <br />Stemming Depth - 5-7 ft <br />Type of Explosives - Hieh explosive primer w/ bulk ANFO <br />Weight of Explosives per Hote - 20 lbs <br />S.ta <br />Total Explosive Weight per Blast - s14t) lbs f~~x <br />Delay Pattern/Explosive Weight per Delay - 17 & 25 msf101bs per 8 ms delay <br />