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Barr Engineering Company <br />4700 West 77th Street <br />B,ARR Minneapolis, MN 55435-4803 LOG OF BORING B-2 <br />Sheet 2 of 2 <br />Project: Proposed RPE Expansion <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 />iu <br />TEST DATA <br />DENSITY <br />w <br />o <br />\ <br />N in blows/ft OO <br />(pcQ <br />wN <br />MATERIAL DESCRIPTION <br />> ❑ <br />10 20 30 40 <br />105 115 125 <br />o <br />;i <br />(ASTM D2488) <br />0. <br />T <br />P <br />z <br />(D <br />m <br />m <br />a `o <br />SHEAR STRENGTH, ksf <br />Water Content, % <br />a <br />in <br />Qp X UC A TV X <br />WP WN WL <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 />... <br />weakness. <br />:: <br />96% <br />6300 <br />34.0 <br />35 <br />40 <br />45 <br />50 <br />I <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 />m Auger Cutting 'Shelby Tube <br />While Drilling: <br />Drilling Contractor: Haztech <br />Drilling Method: HSA/CORE <br />End of Drilling: <br />' Northing: 402983.7 <br />Split Spoon Rock Core <br />® <br />Eastin : 1450669.3 <br />hrs After Drilling: DRY <br />The stratification lines represent appro)amate boundaries. The transition may be gradual. <br />