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• <br />• <br /> <br /> <br /> <br />DEPTtI <br />IFT.) <br /> <br /> <br /> <br /> <br /> <br />5 <br /> <br /> <br /> <br /> <br /> <br />10 <br /> <br /> <br /> <br /> <br /> <br />15 <br /> <br /> <br /> <br /> <br />20 <br /> <br /> <br />25 <br />30 <br /> <br /> <br /> <br /> <br />LOG OF SUBSURFACE EXPLORATION <br /> RSN POND 12 <br />1%'s; %~; %u~ <br />r <br />1 <br />sk <br />Jr Roadside North Portal, Cameo, Colorado <br /> ,r,~, <br />i <br />„fj; {, <br />„ <br />b <br />,ts; <br />WesterD Associated Coal Corp. <br />Date <br /> "sr , <br />f LINCOLN - DeVORE <br />Inc <br />~- s-22-9~ <br /> f <br />f//~- , <br />. <br />;,. <br />r <br />~~f <br />,- <br />; <br />j <br />Geotechnical Consultants Job No. Drawn <br />Grand Junction, Colorado 86014-J EMM <br />:. <br /> <br /> <br />SOIL 1toRINO No. 1 <br />NORTH END OF PROPOSm EMBANKMENT, RSN POND 1Z <br />BORaKi IJ.EVATKMI: <br />BLOW <br />COUNT <br />SOIL <br />DENST' <br /> <br />WATER <br />Loo DESCRIPTION loch f °b <br />i~ <br />i~ <br />~ ALLUVIAL, VERY SILTY and CLAYEY SAND <br />~ LOW SULFATES <br />~ ~ u SC SILTY, CLAYEY SAND SI. MOIST ST 97.5 4.9°b <br />~ I STRATIFIED LOW TO MEDIUM DENSITY 5 <br /> Ox. GRAVELS EASY TO DRILL <br />i <br /> <br /> GRAVELS OF SANDSTONE DEBRIS <br />- LARGE SANDSTONE FRAGMENT DRY CS 50/5 101.9 2.1°b <br />_ - VERY HARD Approz. 2 FEET THICK 10 <br />~ ~ : COARSE SANDS AND GRAVELS <br />I EASY TO DRILL SI <br />MOIST <br />Is <br />. <br />t I I I SM FRAGMENTS OF SANDSTONE, MUDSTONE AND SHALE <br />~ I 0 COMPRESSIBLE MANY SAND SIZES SI. MOIST ST 110.9 4.5°b <br />0 I <br />, . , <br />SM GRAVELLY SAND VERY PERMEABLE 15 <br />21/6 <br /> W MEDIUM DENSITY SI. MOIST SPT 45/12 4.2°b <br /> SOME LOW DENSITY STRATA 64/18 <br /> ALLUVUU_ DEBRIS APPARENTLY DERIVED FROM <br /> THE NEARBY SLOPES. <br /> THIS MATERULL IS NOT NORMAL ALLUVIUM 20 <br /> DERIVED FROM THE COLORADO RIVER. <br /> TD~15' <br /> 25 <br /> 30 <br /> Blow Counts ere cumulative for each <br /> 6 inches of sampler penetration. <br /> NO Free Water <br /> Durin Drillin 5-5-97 <br />• <br />