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Hole Number: Sheet 4 of 12 <br /> )::H(EST & ASSOCIATES, INC.- AMW-23 Soil Log <br /> Northing: 2,148,811.9 Easting: 6,362,757.7 Ground Surface Elevation: 38.3 <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 18-20,2008 <br /> Graphic Z a > H <br /> a—N Soil DescriptionLog o Notes <br /> Q� <br /> 100.0 to 100.9 ft. -Silty SAND,hard,fine grained, Borehole Area Air Measurements: <br /> rust staining,moderate brown(SYR 4/4). 26 0%LEL CH4 / 0 ppm VOC <br /> 10 39 <br /> 101.0 1.5 41 <br /> 100.9 to 101.0 ft.-Sandy SILT,dry,very stiff, <br /> fine grained,dark yellowish brown(10YR 4/2) 50 <br /> 101.0 to 105.0 ft.-Sandy SILT. <br /> 102.0 <br /> 6 <br /> 103.0 <br /> 104.0 <br /> 105.0 <br /> 105.0 to 106.3 ft. -CLAY with abundant mica,dry, 9 <br /> hard,rust staining,brownish gray(5YR 4/1). <br /> 1.3 17 <br /> 106.0 1.5 23 <br /> 38 <br /> 106.3 to 110.0 ft. -CLAY. <br /> 107.0 <br /> 7 <br /> 108.0 <br /> 109.0 <br /> 1� 110.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger F7A FU <br /> Helper: Diego Amador,Robert Kline,Brian Johnson,&James McIntyre CLAY SILT SAND GRAVEL <br /> Logged By: David Vasbinder <br />