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Hole Number: Sheet 4 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 /> x Graphic Z a> F- <br /> e b Soil DescriptionLo o Notes <br /> Q'go g <br /> a0�, <br /> Q� <br /> 30.0 to 30.5 ft.-Clayey SAND,wet,fine to medium <br /> grained,moderate yellowish brown(1 OYR 5/4). 7 Borehole Area Air Measurements: <br /> 0%LEL CH / 0 ppm VOC <br /> 1.5 11 <br /> 30.5 to 31.5 ft.-Sandy SILT,dry,stiff,fine to 1.5 <br /> 31.0 medium grained,grayish orange(IOYR 7/4). 13 <br /> 19 <br /> 31.5 to 35.0 ft. -Sandy SILT. <br /> 32.0 <br /> 7 <br /> 33.0 <br /> 34.0 <br /> 35.0 <br /> 35.0 to 36.1 ft.-Silty CLAY with oxidized rusty 11 <br /> bands,dry,very stiff,olive gray(5Y 4/1). <br /> 1.1 20 <br /> 36.0 1.5 28 <br /> 41 <br /> 36.1 to 40.0 ft.-Clayey SILT. <br /> 37.0 <br /> 8 <br /> 38.0 <br /> 39.0 <br /> • 40.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger <br /> Helper: Tony Young,Robert Kline,&Diego Amador CLAY Sn.T SAND GRAVEL <br /> Logged By: David Vasbinder <br />