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Hole Number: Sheet 18 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 /> ' Soil Description Graphic Log o a Notes <br /> Borehole Area Air Measurements: <br /> 19 0%LEL CH 4 / 0 ppm VOC <br /> ' 0_1 <br /> 171.0 33 1.5 28 <br /> 35 <br /> ' 171.4 to 171.5 ft. -CLAY,slightly damp,medium Terminate drillingat 1507 on 2/1/2010. <br /> dense,highly plastic,olive gray(5Y 5/2). <br /> 172.0 <br /> 173.0 <br /> 174.0 <br /> ' 175.0 <br /> ' 176.0 <br /> ' 177.0 <br /> ' 178.0 <br /> 179.0 <br /> ' 180.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson <br /> Helper: James McIntyre&Steve Moore <br /> ' Logged By: Rachael Haynes CLAY SILT SAND GRAVEL <br />