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• <br /> <br />1~ D <br />+o. <br />vt~ • <br />~v s <br />a <br />" <br />EQUIPMENT <br />Acker MPS <br />\9 ••• 6 • <br />^ • • ~- ~ t - SURFACE <br />]L L06 t 4 <br />o• <br />-7 u u a <br />C•• o <br />w n <br />• a <br />• ELEVATION tt DATE 10 21 95 <br />m a .+ ~• o. o ff <br />root holes (12 inches) <br />(SP) BROWN to LIGHT BROWN SILTY <br />SAND <br />~ trace of clay, occasional cobbles, medium- to <br />Fine-grained, iron-o>ode staining, dry <br />~ 9"/6' S Very dense, nttmerolls cobbles <br />16 Dense, very silty, tray of graved numerous <br />19 ~,/~, 10 cobbles <br />15 <br />13 ~./~~ 15- Medium dense, very silty, trace of gravel, mottled <br />9 <br />10 <br />14 <br />11 18'/18' ~ <br />22 <br />7 18"/18' F'me- to coarse-grained coal fragments <br />11 25- <br />15 <br /> Numerous cobbles encountered by auger <br /> <br />RQD= lOS/30=35% - Auger refusal at 28S ft, switched to core barrel <br />~ (GP) DARK YELLOW to GRAY GRAVEL and <br /> COBBLES <br /> boulders, subrounded to subangular, dry <br />- ~ End core run a[ 31.0 ft. <br />- ~ Clay seam at 32.0 ft., occasional boulder, <br />RQD=7/60=12% ~ subrounded to subangular, dry <br />Ead core run at 36.0 ft. <br />Boring terminated at 36.0 ft., backfillcd with auger <br />cuttings, cement plug, topsoil, no piezometer <br />installed <br />Harding Lawson Associates Log of Boring RPE2 FlGURE <br />Engineering and A <br />^ Q ~ Environmental Sarricea Mountain Coal, West Elk Mine 1 <br />Somerset, Colorado <br />