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DRILLING AND EXPLOSIVES PREPARATION TIME <br />Total Drilling Length: <br />Unadjusted Drilling Rate: <br />Drilling Time: <br />Job Condition Corrections: <br />Site Altitude <br />Altitude Adjustment <br />Job Efficiency Factor <br />Adjusted Drilling Rate <br />Explosives Prep. Time <br />JOB TIME AND COST <br />767 <br />linear feet <br />82.00 <br />feet/hour <br />14.70 <br />hours <br />7,100 <br />feet <br />0.95 <br />(DRMS est.) <br />0.67 <br />(CH. Exc. HB) <br />52.19 <br />feet/hour <br />10.99 <br />hours <br />Total Job Time: 25.69 Hours <br />Unit cost: $2.859 per cu. yd. Total Job Cost: $15,507 <br />