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Hole Number: Sheet 18 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 /> NN <br /> -a ' <br /> v� o 0 <br /> � E- <br /> QSoil Description Graphic Z a Log o Notes <br /> G <br /> w F � <br /> q� <br /> 170.0 to 171.3 ft. -Silty CLAY with abundant mica, 17 Resume Drilling @ 0903 on 11/12/2008. <br /> dry,hard,moderate yellowish brown(10YR 5/4). <br /> 1.3 34 <br /> 171.0 1.5 42 Borehole Area Air Measurements: <br /> 50 0%LEL CH4 / 0 ppm VOC <br /> 171.3 to 175.0 ft. -Silty CLAY. <br /> 172.0 <br /> 35 <br /> 173.0 <br /> • <br /> 174.0 <br /> 175.0 Terminate Drilling @ 1150 on 11/12/2008. <br /> 175.0 to 176.4 ft. -Silty CLAY with abundant micaxx�1_ Bottom of Boring=175 feet <br /> dry,hard,moderate yellowish brown(10YR 5/4). 37 (Bottom of Boring=174 feet below ground surface) <br /> 36 11_4 50 <br /> 176.0 1.5 58 <br /> 63 <br /> 177.0 <br /> 178.0 <br /> 179.0 <br /> 180.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger F7A FU El <br /> Helper: Tony Young,Robert Kline,&Diego Amador CLAY SILT SAND GRAVEL <br /> Logged By: David Vasbinder <br />