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' Hole Number: Sheet 12 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 o a Notes <br /> Log v� <br /> ' 110.0 to 111.0 ft. -SAND,moist,loose,fine to coarse Borehole Area Air Measurements: <br /> grained,poorly sorted,subrounded,mica throughout, 20 0%LEL CH / 0 m VOC <br /> dark grayish brown(1 OYR 4/2). Contains 20%fine 4 pp <br /> gravel throughout. 22 24 <br /> 1.5 <br /> ' 111.0 27 <br /> ' 112.0 <br /> ' 113.0 <br /> 114.0 <br /> ' 115.0 <br /> 115.0 to 115.3 ft. -Silty CLAY with trace sand,dry, <br /> stiff,slightly plastic,dark grayish brown(10YR 4/2). Borehole Area Air Measurements: <br /> 18 0%LEL CH4 / 0 ppm VOC <br /> 115.3 to 116.1 ft. -SAND,moist,loose,fine to coarse <br /> grained,poorly sorted,subrounded,mica throughout, 231 5 22 <br /> ' 116.0 dark yellowish brown(10YR 4/6). <br /> 23 <br /> ' 117.0 <br /> ' 118.0 <br /> 119.0 <br /> 1 <br /> 120.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson EZI FU <br /> Helper: Mac, Steve,&Charlie CLAY SILT SAND GRAVEL <br /> ' Logged By: Leslie Keuss <br />