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Hole Number: Sheet 4 of 8 <br /> HERST & ASSOCIATES, INC.- AMw 22 Soil Log <br /> • Northing: 2,147,896.8 Easting: 6,361,154.7 Ground Surface Elevation: 35.4 <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: December 1 -3,2008 <br /> moo„ <br /> o <br /> Q o b Soil Description G c U Notes <br /> Lohi <br /> c g <br /> w o a, <br /> Q� <br /> 100.0 to 101.3 ft.-Clayey SILT,dry,hard,moderate Borehole Area Air Measurements: <br /> yellowish brown(10YR 5/4). 10 0%LEL CH / 0 ppm VOC <br /> 1.3 13 <br /> 101.0 1.5 17 <br /> 19 <br /> 101.3 to 105.0 ft. -Clayey SILT. <br /> 102.0 <br /> 6 <br /> 103.0 <br /> • <br /> 104.0 <br /> 105.0 Suspend Drilling @ 1123 on 12/2/2008 <br /> 105.0 to 106.0 ft. -SAND,wet,soft,fine to medium Resume Drilling @ 0735 on 12/3/2008 <br /> grained,well sorted,moderate brown(5YR 4/4). 21 <br /> 1.0 31 <br /> 106.0 1.5 35 <br /> 106.0 to 110.0 ft. -SAND. 37 <br /> 107.0 <br /> 7 <br /> 108.0 <br /> 109.0 <br /> • 110.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger <br /> Helper: Diego Amador&Bill Kishi CLAY SILT SAND GRAVEL <br /> Logged By: David Vasbinder <br />