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Hole Number: Sheet 2 of 18 <br /> ' HERST & ASSOCIATES, INC- AMW-30 Soil Log <br /> ' Northing: 2,148,062.1 Easting: 6,367,022.3 Ground Surface Elevation: 45.0 <br /> Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: Boart-Longyear DB540 <br /> ' Site Location: Stockton,California Drilling Dates: January 18-22,2010 <br /> Soil Description Graphic —E.0 a Notes <br /> Log U Cn <br /> 10.0 to 11.2 ft.-Silty CLAY with trace sand,moist, Borehole Area Air Measurements: <br /> soft,plastic,dark yellowish brown(10YR 4/6). 8 0%LEL CH / 0 ppm VOC <br /> ' 2 1=2 12 <br /> 11.0 1.5 <br /> 17 <br /> ' 12.0 <br /> 13.0 <br /> 14.0 <br /> ' 15.0 <br /> 15.0 to 15.9 ft.-Clayey SAND,moist,subangular, Borehole Area Air Measurements: <br /> poorly sorted,very soft,dark yellowish brown 3 0%LEL CH4 / 0 ppm VOC <br /> (1 OYR 3/4). 0_9 <br /> ' 16.0 3 1.5 5 <br /> 6 <br /> 17.0 <br /> ' 18.0 <br /> 19.0 <br /> ' 20.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson rLA <br /> ' Helper: Mac, Steve,&Charlie <br /> CLAY SII.T SAND GRAVEL <br /> Logged By: Leslie Keuss <br />