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c <br />c <br />0 <br />m <br />Barr. Engine Company <br />4700 West 777th Street <br />77th <br />BARB Minneapolis, MN 55435 -4803 LOG OF BORING B -6 <br />Sheet 1 of 3 <br />Project: Proposed RPE Expansion <br />Location: West Elk Mine, Somerset, <br />Client: Mountain Coal Company <br />CO <br />Barr Project Number: 06/261003 <br />STANDARD PENETRATION <br />NATURAL DRY <br />TEST DATA <br />DENSITY <br />w <br />o <br />\ <br />N in blows/ft @ <br />(pcf) is <br />o <br />2 <br />DESCRIPTION <br />S2 <br />a > ❑ <br />10 <br />io 20 30 ao <br />105 115 125 <br />io <br />a <br />(ASTM D2488) <br />a <br />� Z LL <br />m <br />O <br />L° <br />o d o <br />SH STRENGTH, ksf <br />Water Content, % <br />W <br />O <br />E V) <br />Q X UCi A TV )K <br />Wp WN WL <br />iq <br />VS o VSR O <br />Surface Elev.: 6567.7 <br />1 2 3 a <br />20 40 60 <br />0 <br />LEAN CLAY (CL) Brown/grey moist lean clay with fine grained <br />sand and silt. Trace roots. <br />6565 <br />5 <br />19 <br />19 <br />SILTY SAND (SM) Light brown slightly moist fine grained sand 4.7 <br />with trace coarse sand. <br />/ <br />6560 <br />/ <br />9 <br />CLAY (CL -CH) Tan slightly moist clay with some orange/grey 9.0 <br />10 <br />streaks. Minor fine grained sand. Trace roots and gravel. <br />9 <br />I <br />6555 <br />I <br />1 <br />1 <br />15 <br />I <br />15 <br />CLAY (CL -CH) Tan slightly moist clay with some orange/grey 16.0 <br />21 <br />streaks. Minor fine grained sand. 10% gravel up to 1 ". <br />21 <br />6550 <br />/ <br />/ 1 <br />0 <br />20 - <br />15 <br />♦ <br />♦ <br />6545 <br />50/ <br />>> q,50/2 <br />25 <br />2 <br />6540 <br />50/ <br />>J50/1 <br />SHALE Light tan - medium brown shale with coal dust seams. 29.0 <br />30 <br />Continued Next Page <br />Completion Depth: 74.5 <br />Remarks: <br />Date Boring Started: 6/20/09 <br />Date Boring Completed: 6/22/09 <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 />Northing: 402144.6 <br />® Split Spoon o Rock Core <br />End of Drilling: <br />Eastin 1450500.2 <br />hrs After Drilling: <br />9: <br />The stratification lines represent approbmate boundaries. The transition may be gradual. <br />