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Barr Engineering Company <br />4700 W 77th St. Suite 200 LOG OF BORING SB09-12 <br />BARR Edina, MN 55435 <br />Sheet 3 of 4 <br />Project: Proposed Coal Handling Location: West Elk Mine, Somerset, Client: Mountain Coal Company <br />Facilities CO <br /> Barr Project Number: 06/261004 STANDARD PENETRATION NATURAL DRY <br /> N TEST DATA DENSITY <br /> o ? o N in blows/ft O (pcf) it <br /> MATERIAL DESCRIPTION co <br />0 <br />10 20 30 40 <br />100 110 120 <br />.2 Z 2- Z cr <br />m a (ASTM D2488) a <br />m C <br />> <br />(D <br />CL SHEAR STRENGTH, ksf Water Content, <br /> <br />% <br />L1J a cn OP X UC A TV )K WP WN WL <br />9 <br /> U) VS A VSR O ? <br />? <br /> 1 2 3 4 20 40 60 <br /> 60 LEAN CLAY (CL) Dark grey-black clay with coal, mudstone 60.0 <br /> and siltstone fragments. Some sandstone fragments. Slightly 37 h 7 <br /> moist. Water added. <br /> <br /> <br /> <br /> <br /> <br />5 <br />619 <br />- -65- <br /> 18 ¢ <br />I <br />I 8 <br /> I <br />I <br />I <br />I <br />6190- -70- <br /> 13 13 <br />I <br />I <br /> I <br />I <br />I <br />6185- -75- <br /> 14 11 <br /> 1 <br />1 <br />1 <br />1 <br /> 1 <br />6180- -80- <br /> 22 ?22 <br /> <br /> <br /> <br /> \ <br /> <br /> 6175.0 \ <br /> 85 SANDSTONE Light brown <br />broken sandstone with some 6195.8 <br /> , <br />clay. 85.5 56 56 <br /> CLAY (CL CH) Medium brown clay with sand, silt and gravel. <br /> Slightly moist. INNI <br /> 6170.0 <br /> 90 on roue e a e <br />Completion Depth: 82.0 Remarks: <br />Date Boring Started: 6/29/09 <br />Date Borin <br />Com <br />leted: 6/29/09 <br />g <br />p <br />Logged By: BWL SAMPLE TYPES WATER LEVELS <br />Drilling Contractor: Haztech <br />ttin <br />'Sh <br />lb <br />T <br />b <br />C <br />m A While Drilling: <br />Drilling Method: HSA uger <br />g <br />y <br />u <br />e <br />u <br />e <br />End of Drilling: <br /> ® Split spoon a Rock Core <br /> hrs After Drilling: <br />the stratification lines represent approximate boundaries. The transition may be gradual.