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Barr Engineering Company <br />4700 West 77th Street <br />BARR Minneapolis, MN 55435 -4803 LOG OF BORING B -8 <br />Sheet 2 of 2 <br />Project: Proposed RPE E )pansion <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 />TEST DATA <br />DENSITY <br />w <br />o <br />\ <br />N in blows /ft O <br />(pcf) �h <br />o <br />r <br />MATERIAL DESCRIPTION <br />L) <br />n <br />> 0 <br />10 20 30 40 <br />105 115 125 <br />1 <br />o <br />(ASTM D2488) <br />Ln <br />1 <br />z <br />a') <br />O <br />2 <br />2 <br />d o <br />SHEAR STRENGTH, ksf <br />Water Content, % <br />w <br />O <br />CL E <br />(� <br />Qp X UC TV alE <br />Wp WN WL <br />M <br />VS o VSR O <br />11 e <br />30 <br />1 2 3 4 <br />20 40 60 <br />SANDSTONE Light- medium grey sandstone interbedded with <br />,. <br />:: <br />50/ <br />50/1 <br />siltstone. <br />:: <br />1 <br />- <br />53% <br />6745 <br />35 <br />35.0 <br />40 <br />45 <br />50 <br />55 <br />60 <br />Completion Depth: 35.0 <br />Remarks: <br />Date Boring Started: 6/24/09 <br />Date Boring Completed: 6/24/09 <br />SAMPLE TYPES <br />WATER LEVELS <br />Logged By: BWL <br />Auger Cutting 'Shelby Tube <br />While Drilling: <br />Drilling Contractor. Haztech <br />Drilling Method: HSA/CORE <br />Northing- 401418.0 <br />®Split Spoon Rock Core <br />End of Drilling: <br />Eastin : 1450558.8 <br />hrs After Drilling: DRY <br />I he stratincation Ines represent appro)amate boundaries. I he transition may be gradual. <br />