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z <br />D~ <br />IFTd <br />5 <br />10 <br />15 <br />0 <br />25 <br />30 <br />LOG OF SUBSURFACE EXPLORATION <br />RSN POND 12 <br />Roadside North Portal Cameo, Colorado <br />`` "~'r~-~-. Western Associated Coal Corp. Date <br />1;;.~~ LINCOLN - DeVORE, tnc. s-22-9, <br />/~` "-= ~' ,. Geotel:hnical Consultants Job No. Drawn <br />Grand Junction, Colorado 86014-J EMM <br /> <br /> <br />SOIL BowND rla 2 <br />20' NORTN OF SOI7Tt1 END OF PROPOSED EMBANKMENT, RSN POND 12 <br />BORING ELEVATION: <br />BLOW <br />COUNT <br />SOIL <br />DENSITY <br /> <br />WATER <br />Loo DESCRIPTION Hoch % <br />w0 <br />~ VERY SILTY and CLAYEY SAND <br />ALLUVIAL <br /> , <br />~, [ LOW SULFATES <br />' <br />' SC SILTY, CLAYEY SAND SI. MOIST ST 89.2 5,1% <br />~ ~ I STRATIFIED LOW TO MEDIUM DENSITY 5 11/06 <br />~ <br />e Oce. GRAVELS EASY TO DRILL SPT 32/12 5.0% <br />O <br />~ <br />54H8 <br />~ <br />, <br />~D <br /> ML GRAVELLY, CLAYEY SILT DEBRIS SI. MOIST SPT 31/6 124.5 6.0°~ <br />° 8 FRAGMENTS OF SANDSTONE, MUDSTONE AND SHAT 10 66112 <br />I I <br />I VERY FIRM TO DRILL 116117 <br />i I (~ SOFTER, LOW DENSITY, SILTY SAND <br />I <br />~ I PERMEABLE SULFATES <br />I I SM FRAGMENTS OF SANDSTONE AND SHALE SPT 14/G 7.6°.6 <br />b I I II COMPRESSIBLE MANY SAND SIZES SI. MOIST 15 30/12 <br /> SOME LOW DENSITY STRATA 48/18 <br /> ALLUVIAL DEBRIS APPARENTLY DERIVED FROM <br /> THE NEARBY SLOPES.. <br /> THIS MATERIAL IS NOT NORMAL ALLUVIUM 20 <br /> DERVED FROM THE COLORADO RNER. <br /> TD @ 15' <br /> 25 <br /> 30 <br /> Blow Counts are cumulative for $a~!: <br /> 6 inches of sampler penetration, <br /> NO Free Water <br /> Durin Drillin 5-5-87 <br />