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Page 6 of 135 <br />DRILLING AND EXPLOSIVES PREPARATION TIME <br />Total Drilling Length: <br />4,608 <br />linear feet <br />Unadjusted Drilling Rate: <br />187.00 <br />feet/hour <br />Drilling Time: <br />38.71 <br />hours <br />Job Condition Corrections: <br />Site Altitude: <br />5,700 <br />feet <br />Altitude Adjustment: <br />0.95 <br />(DRMS est.) <br />Job Efficiency Factor: <br />0.67 <br />(CH. Exc. HB) <br />Adjusted Drilling Rate: <br />119.03 <br />feet/hour <br />Explosives Prep. Time: <br />100.03 <br />hours <br />JOB TIME AND COST <br />Total Job Time: <br />138.75 Hours <br />Unit cost: $1.350 per cu. yd. <br />Total Job Cost: <br />$41,925 <br />CIRCES Cost Estimating Software <br />