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• <br />l � <br />u <br />00 <br />z <br />0 <br />m <br />Barr Engineering Company <br />4700 West 77th Street <br />BARB Minneapolis, MN 55435 -4803 LOG OF BORING B -1 <br />Sheet 3 of 3 <br />Project: Proposed RPE Expansion <br />Location: West Elk Mine, Somerset, <br />Client: Mountain Coal Company <br />CO <br />Barr Project Number: 06/26 003 <br />STANDARD PENETRATION <br />NATURAL DRY <br />c <br />TEST DATA <br />DENSITY <br />w <br />d <br />? <br />o <br />-6 <br />N in blows/ft O <br />(Pcti �c <br />w <br />MATERIAL DESCRIPTION <br />a <br />> 0 <br />10 20 30 40 <br />toy 115 125 <br />a <br />(ASTM D2488) <br />CE <br />z� <br />D <br />m <br />a `8 S HEAR <br />STRENGTH, ksf <br />Water Content, % <br />_� <br />w <br />C7 <br />E <br />rn <br />QP X UC o TV )K <br />W W W <br />t <br />VS 0 VSR O <br />60 <br />1 2 3 4 <br />20 40 60 <br />SANDSTONE Grey, tan, red/dark red and white sandstone 60.0 <br />; ; <br />interbedded with siltstone. Black powder in shoe. <br />6130 <br />20% <br />65 <br />6125 <br />0% <br />- 70- <br />COAL Black with red flecks, dull platy coal with vitrain 70.0 <br />laminations. <br />SANDSTONE Light grey sandstone with coualy laminations near 71'0 <br />6120 <br />conotact. <br />39% <br />75 <br />75.0 <br />80 <br />85 <br />L 90 <br />Completion Depth: 75.0 <br />Remarks: <br />Date Boring Started: 6/25/09 <br />Date Boring Completed: 6/25/09 <br />SAMPLE TYPES <br />WATER LEVELS <br />Logged By. BWL <br />Drilling Contractor: Haztech <br />Drilling Method: HSA/CORE <br />m Auger Cutting ,Shelby Tube <br />While Drilling: <br />Northing: 403263.5 <br />Split Spoon <br />End of Drilling: <br />Eastin : 1450468.5 <br />Rock Core <br />hrs After Drilling: DRY <br />ne wanricacion ones represent approwmate oounoanes. i ne transition may oe graaual. <br />