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Hole Number: Sheet 1 of 18 <br /> HERST & ASSOCIATES, INC.- AMW-21 Soil Log <br /> Northing: 2,146,441.0 Easting: 6,359,731.4 Ground Surface Elevation: 34.9 <br /> Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120081503 Method of Drilling: DB 540 with Mud Puppy <br /> Site Location: Stockton,California Drilling Dates: November 4- 12,2008 <br /> U�v <br /> Graphic Z a > E~ <br /> Soil Description Log o 0. Notes <br /> Qoq � <br /> Qw � <br /> 0.0 to 1.5 ft. -Cultivated black topsoil. \\�j\ 0 Begin drilling at 1201 on 11/4/2008. <br /> 1_5 5 Drilling depth scale begins at one foot <br /> 1.0 ����� 1.5 5 above ground surface due to required <br /> 2 drilling rig setup. <br /> Borehole Area Air Measurements: <br /> 1.5 to 5.0 ft.-Silty CLAY. 0%LEL CH4 / 0 ppm VOC <br /> 2.0 <br /> 1 <br /> 3.0 <br /> 4.0 <br /> 5.0 <br /> 5.0 to 6.1 ft.-Silty CLAY with barite lenses,dry,very 15 <br /> stiff,moderate yellowish brown(10YR 5/4). <br /> 1.3 12 <br /> 6.0 1.5 8 <br /> 10 <br /> 6.1 to 6.3 ft.-SAND,moist,coarse grained, <br /> brownish gray(5YR 4/1). <br /> 7.0 6.3 to 10.0 ft.-Silty CLAY. <br /> 2 <br /> 8.0 <br /> 9.0 <br /> • 10.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger F/7/1 FU <br /> Helper: Tony Young,Robert Kline,&Diego Amador CLAY SILT SAND GRAVEL <br /> Logged By: David Vasbinder <br />