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r YEH AND ASSOCIATES, INC. Project: Bowie Landslide Study Boring: p-G <br />t GEOTECHNICAL ENGINEERING CONSULTANTS Project Number. 25-196 Date: Sheet 1 of 1 <br /> <br />Boring Began: 1/31/2006 Completed: 1131/2006 Total Depth: 15.0 ft <br />Drilling Method: Solid-Stem Auger Drill Bit: Ground Elevation: 8257.0 ft <br />Casing: Location: South side, center slide <br />Drill: CME 45 Track Mount <br />Weather. Cold, overcast, snow Coordinates: N: 4,317,713.9 E: 278,100.9 <br />Driller. Ager Drilling/Bill/Chris <br />Logged By: S. White Ground Water Notes: No groundwater encountered <br />Final By: S. White Depth <br />Inclination: Vertical Date <br />Time <br /> CL <br />0 Rock Soil Samples <br /> <br /> CL <br />a) a Z SPT o Field Notes <br /> <br />v <br />O v E <br />> <br />Blows <br />N <br />°c <br />Material Description <br />and <br />w <br />V) <br />W <br /> <br />per <br /> <br />J <br /> <br />Lab Tests <br /> 0: 6 in <br /> o: <br /> 0.0 - 3.5 fL gravelly CLAY with occasional <br /> L cobbles, boulders, CL, brown, dry to damp, very <br /> <br />8255 <br />- stiff to hard, low to medium plasticity; subangular Auger grinding on <br /> <br />] to angular gravels, (landslide debris). cobbles, boulder surface <br /> _ 33 12/12/15 27 to 1 ft. <br /> 3 <br />5 - 5 <br />0 ft <br />SANDSTONE <br />ellow-brown <br /> <br /> <br />5 <br />80 <br />38 <br />; • . <br />. <br />. <br />, y <br />, <br />predominanteiy decomposed, very soft, weak <br /> cementation, (UPPER MESAVERDE GROUP). <br /> 5.0 -6.0 ft. SANDSTONE, yellow-brown, slightly <br /> weathered, medium hard to hard. <br />8250 6.0 -15.0 fL SANDSTONE W/SHALE LAYERS, <br /> ... yellow-brown, moderately weathered, soft to <br /> medium hard <br />weakly cemented sandstone <br /> , <br />layers, (UPPER MESAVERDE GROUP). I <br /> <br /> 10 <br /> 100 50/4" 150 <br /> <br />8245 <br /> <br /> 15 <br /> <br />_ <br />R <br />R Bottom of Hole at 15.0 ft. Slotted PVC set from 5 to <br /> 15 ft; clean sand from 4 to <br /> <br />8240 15 ft; bentonite pellets <br /> from 1 to 4 ft; clean sand <br /> from in top 1 ft; set metal <br /> riser with grout. <br /> Hole #5 next to #6 has <br /> 20 inclinometer set to 13.5 ft <br /> BGL and 3 ft above GL <br />8235 <br />i <br />25 <br />8230 <br /> 30 <br />8225 <br /> <br />10, <br />