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u <br />• <br />Boring Log: 8+00 <br />Project: West Elk Mine <br />Project No.: 500002 <br />Location: Somerset, Colorado <br />Completion Date: March 18, 2003 <br />Surface Elevation (feet AAfSl *): <br />Total Depth (Peet): 31.5 <br />Borehole Diameter ruches): 8 <br />ETMRONMENTAL <br />STRATEGIES <br />Sample Data Subsurface Profile <br /> a E <br /> > <br />~ a <br />~ <br />~ <br /> ,~ ~ e > ~ Description <br /> <br />r a <br />a 7 <br />4 U ~ <br />as c <br />o <br />d E A o ~' L.. <br />Q to P~. In o a <br /> Ground Surface <br />0 GRAVEL <br /> Road fill. <br />2 <br />NA <br />Auger <br />CLAY(CL) <br /> Dark brown, with gravel and rockfragments. <br />4 <br />6 I NA 7-8ao 100 CLAYEYS/LT(ML) <br />l <br />ti <br />tiff <br />i <br />t t <br />B <br />tr <br />fi <br />d <br />d <br /> ne san <br />, non-p <br />as <br />c, s <br />, mo <br />rown, <br />ace <br />s <br />o <br />ry. <br />8 Nom: Augcrcd through weathered sandstone cobbles from 7 to 8 feet <br />IQ <br />2 <br />NA <br />6-18-2 <br />100 CLAYEY SILT (ML) <br /> t <br />B <br />d <br />h <br />d fi <br />i <br />d <br />d <br />i <br />d <br />bbl <br />d <br />hi <br />l <br />f f <br />d <br /> rown, an <br />weat <br />ere <br />ne gra <br />ne <br />san <br />s <br />one w <br />ine san <br />st to <br />ry. <br />es an <br />t <br />n <br />enses o <br />, mo <br />12 <br />14 <br />- <br />76 3 NA 7-1612 100 CLAY(CL) ~ <br />-_---- - <br />il <br />i <br />d <br />l <br />Li <br />h <br />b <br />d f <br />iff <br />ti <br />i <br /> t an <br />ine gra <br />ne <br />sang p <br />as <br />g <br />t <br />rawn, some s <br />c, very st <br />st. <br />, mo <br /> CLAYEY S/LT (Aft) <br />1 g Light brown, some sandstone fragments, non-plastic, sandstone cobble at ] 6.5 feet. <br />20 <br />4 <br />NA <br />6-12.25 <br />100 CLAY (CL) - <br /> <br />trace sandstone fra <br />ments <br />ve <br />Li <br />ht b <br />own <br />stiff <br />ti <br />l <br />i <br />t <br /> g <br />ry <br />g <br />r <br />, <br />, <br />as <br />, p <br />c, mo <br />s <br />22 <br />24 <br />--~ <br />26 5 NA 1-13-1 100 CLAY(CL) <br />ve <br />stiff to hard <br />lastic <br />moist <br />a <br />laztic <br />G <br /> , <br />. <br />r <br />y, p <br />, <br />ry <br />, p <br />28 Sandstone cobbles at 25 to 25.5 and 26.5 feet <br />30 <br />6 <br />NA <br />12-17-1 <br />100 - - <br />CLAY (CL) <br /> t <br />li <br />d <br />t <br />f <br />tiff <br />G <br />l <br />ti <br />i <br /> s, very s <br />ray, some o <br />ve san <br />s <br />one <br />agmen <br />, p <br />as <br />c, mo <br />st <br />32 <br />34 <br />Logged By: Pat Peterson Method: HSA ID(inches): 4.25 <br />Subcontractor: DA Smith Drilling Company <br />Driller/Operator: Roger ,~ <br />AMSL=Above mean sea level <br />