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1 <br /> Hole Number: Sheet 9 of 18 <br /> ' HERST & ASSOCIATES, INC.- AMW 29 Soil Log <br /> ' Northing: 2,147,760.7 Easting: 6,365,707.4 Ground Surface Elevation: 43.2 <br /> Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: DB540 <br /> ' Site Location: Stockton,California Drilling Dates: January 27-February 1,2010 <br /> 1 <br /> Graphic Z E ., � H <br /> Soil Description Log 9 9 0 Notes <br /> ' 80.0 to 81.5 ft.-Silty CLAY,damp,hard,moderately Borehole Area Air Measurements: <br /> plastic,trace mica throughout,brown(10YR 4/3). 16 0%LEL CH4 / 0 ppm VOC <br /> ' 16 15 19 <br /> St.o <br /> 39 <br /> ' 82.0 <br /> 83.0 <br /> 84.0 <br /> ' 85.0 <br /> 85.0 to 86.1 ft.-SAND,wet,loose,medium grained, Borehole Area Air Measurements: <br /> well sorted,subrounded,brown(10YR 5/3). Contains 16 0%LEL/o CH / 0 ppm VOC <br /> 5 mica throughout. <br /> 86.0 <br /> 17 1.5 19 <br /> 19 <br /> ' 87.0 <br /> ' 88.0 <br /> 89.0 <br /> ' 90.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson <br /> Helper: James McIntyre&Steve Moore CLAY SILT SAND GRAVEL <br /> ' Logged By: Rachael Haynes <br />