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• <br />• <br />0 <br />Z <br />m <br />Barr Engineering Company <br />4700 West 77th Street <br />BARR Minneapolis, MN 55435 -4803 LOG OF BORING B -2 <br />Sheet 2 of 2 <br />Project: Proposed RPE E)qansion <br />Location: West Elk Mine, Somerset, <br />client: Mountain Coal Company <br />CO <br />Barr Project Number: 06/261003 <br />STANDARD PENETRATION <br />NATURAL DRY <br />y <br />TEST DATA <br />DENSITY <br />w <br />0) <br />N in blows /ft OO <br />(pcf) it <br />"� <br />MATERIAL DESCRIPTION <br />0 <br />a <br />> 0 <br />10 20 30 40 <br />105 115 125 <br />io <br />n <br />(ASTM D2488) <br />L <br />z� <br />F <br />> <br />(D <br />m <br />d <br />SHEAR STRENGTH, ksf <br />Water Content, % <br />W <br />0 <br />E <br />Qp X UC A TV X <br />W WN WL <br />Cn <br />VS A VSR O <br />1 2 3 4 <br />20 40 60 <br />30 <br />SANDSTONE Light brown with light grey mottling. Primarily fine <br />grained with minor medium grains. Minor coal in planes of <br />weakness. <br />96% <br />6300 <br />34.0 <br />35 <br />40 <br />45 <br />50 <br />55 <br />60 <br />Completion Depth: 35.0 <br />Remarks: <br />Date Boring Started: 6/18/09 <br />Date Boring Completed: 6/18/09 <br />SAMPLE TYPES <br />WATER LEVELS <br />Logged By. BSE <br />Drilling Contractor: Haztech <br />Drilling Method: HSA/CORE <br />m Auger Cutting ,Shelby Tube <br />While Drilling: <br />Northing: 402983.7 <br />Split Spoon n Rock Core <br />End of Drilling: <br />Eastin : 1450669.3 <br />hrs After Drilling: DRY <br />i ne strautication Ines represent appro)amate boundaries. The transition may be gradual. <br />