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Hole Number: Sheet 16 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 � o a Notes <br /> Log a0i 0. <br /> Borehole Area Air Measurements: <br /> 10 0%LEL CH 4 / 0 ppm VOC <br /> 30 50 <br /> 151.0 <br /> —5 <br /> 151.0 to 151.5 ft. -SAND,wet,medium to coarse 1. 1"f"nl1 <br /> grained,well sorted,subrounded,micaceous,grayish <br /> brown(2.5Y 5/2). Contains subrounded gravel. <br /> ' 152.0 <br /> 153.0 <br /> 154.0 <br /> ' 155.0 <br /> Borehole Area Air Measurements: <br /> 28 0%LEL CH / 0 ppm VOC <br /> 156.0 31 15 42 <br /> 156.0 to 156.5 ft. -SAND,slightly damp,medium to 50 <br /> fine grained,well sorted,subrounded,light olive brown <br /> (2.5Y 5/3). <br /> ' 157.0 <br /> ' 158.0 <br /> 159.0 <br /> 160.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson 7A FU <br /> Helper: James McIntyre&Steve Moore CLAY SILT SAND GRAVEL <br /> ' Logged By: Rachael Haynes <br />