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a <br />t7 <br />rr YEH AND ASSOCIATES, INC. Project Bowie Landslide Study Boring: P-g <br />IL GEOTECHNICAL ENGINEERING CONSULTANTS Project Number: 25-196 Date: Sheet 1 of 1 <br />Boring Began: 1/31/2006 Completed: 1/31/2006 Total Depth: 22.0 ft <br />Drilling Method: Solid-Stem Auger Drill Bit: Ground Elevation: 8221.0 ft <br />Casing: Location: SE side, center of slide <br />Drill: CME 45 Track Mount <br />Weather. Cold, overcast, snow Coordinates: N: 4,317,690.8 E: 278,132.0 <br />Driller: Agar 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 />C P A <br /> A? 2-11 SPT CM Field Notes <br /> <br />,p? <br />v E <br />o 13 <br />Blows <br />N <br />= <br />Material Description <br />and <br />w o per Lab Tests <br /> <br />Ix <br />6 in -J <br /> o: <br /> <br />8220 0.0 - 3.0 ft. silty CLAY with trace gravel, CL, <br />dark brown, damp, stiff to very stiff, low plasticity; <br /> occasional subangular gravels, (Tilo. <br /> 3.0 -12.0 fL sandy CLAY with some gravels <br /> , <br />CL <br />ll <br />b <br /> , ye <br />ow- <br />rown, dry to damp, very stiff to hard, <br /> <br />5 80 17/20 37 low to medium plasticity; occasional angular to <br /> subangular gravels, (Till). <br />8215 <br /> 10 40 7/13 20 <br /> <br />8210 <br /> 12.0 -17.0 fL CLAY with some gravels, CL, <br /> dark brown to red-brown, damp, stiff, low to <br /> medium plasticity; occasional angular to <br /> <br />15 40 7/6 13 subangular gravels, (landslide debris). <br /> <br />8205 <br /> 17.0 - 22.0 fL SANDSTONE, yellow-brown, <br /> slightly weathered to moderately weathered, soft <br /> to medium hard, weak cementation, (UPPER <br /> <br />20 80 50/6" 100 : <br />: MESAVERDE GROUP). <br /> <br />8200 <br /> Bottom of Hole at 22.0 ft. Slotted PVC set from 12 <br /> to 22 ft; clean sand from <br /> 11 to 22 ft; bentonite <br /> pellets from 1 to 11 ft; <br /> 25 clean sand in top 1 ft; <br /> metal riser set with grout <br />8195 Hole #7 next to #8 has <br /> inclinometer set to 29 ft <br /> BGL and 3.2 ft above GL <br /> 30 <br />8190