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• <br />0 <br />m <br />Barr Engineering Company <br />4700 West 77th Street <br />BARR Minneapolis, MN 55435 -4803 LOG OF BORING SB09 -12 <br />Sheet 4 of 4 <br />Project: Proposed Coal Handling <br />Location: West Elk Mine, Somerset, <br />Client: Mountain Coal Company <br />Facilities <br />CO <br />Barr Project Number: 06/261004 <br />STANDARD PENETRATION <br />NATURAL DRY <br />d <br />TEST DATA <br />DENSITY <br />w <br />a> <br />m <br />o <br />-a <br />3 0 <br />N in blows /ft OO <br />(pcf) is <br />MATERIAL DESCRIPTION <br />2 <br />a <br />> 0 <br />10 20 so ao <br />105 115 125 <br />(ASTM D2488) <br />�Z <br />SHEAR STRENGTH, ksf <br />Water Content, % <br />W <br />0 <br />c/J <br />O X UC A TV )K <br />WP WN WL <br />N <br />VS A VSR O <br />1 2 3 4 <br />20 40 60 <br />90 <br />WELL GRADED GRAVEL WITH CLAY (GW -GC) Gravel with 90.0 <br />quartzite, slate, igneous clasts up to 2 ". <br />• <br />• <br />92.0 <br />95 <br />100 <br />105 <br />110 <br />115 <br />120 <br />Completion Depth: 92.0 <br />Remarks: <br />Date Boring Started: 6/29/09 <br />Date Boring Completed: 6/29/09 <br />SAMPLE TYPES <br />WATER LEVELS <br />Logged By: BWL <br />Auger Cutt ,Shelby Tube <br />While Drilling: <br />Drilling Contractor: Haztech <br />Drilling Method: HSA <br />ng <br />Northing: <br />® Split Spoon a Rock Core <br />End of Drilling: <br />Eastin : <br />hrs After Drilling: <br />the stratification lines represent approbmate boundaries. The transition may be gradual. Revised March 19, 2010 <br />