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Hole Number: Sheet 8 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 /> �S'u 9 Graphic Z p,> E~ <br /> Q.- Soil Description Lo 9 0 ra Notes <br /> c g <br /> Q� <br /> 70.0 to 70.2 ft.-Silty SAND with dark organic <br /> lenses,moist,medium stiff,fine grained. Silty 10 <br /> sand is moderate brown(5YR 4/4)and organic 22 <br /> in is dusky yellowish brown(IOYR 2/2). 1_5 <br /> 71.0 1.5 40 <br /> 70.2 to 70.5 ft.-Silty CLAY,dry,medium <br /> stiff,moderate brown(5YR 4/4). 42 <br /> �'Ju <br /> 5 to 71.5 ft.-Cla�pr3e'sen�'t�dW, <br /> bundant <br /> a and barite lensery stiff, <br /> 72.0YR 5/4). <br /> 71.5 to 75.0 ft.-Clayey SILT. <br /> 15 <br /> 73.0 <br /> • <br /> 74.0 <br /> 75.0 <br /> 75.0 to 75.6 ft.-SAND,wet,well-graded,medium to Borehole Area Air Measurements: <br /> coarse grained with some medium gavel,multi-colored. :.:. :' 16 O%LEL CH4 / 0 ppm VOC <br /> 75.6 to 76.0 ft. -Silty SAND,wet,medium gained, 1_5 30 <br /> 76.0 light brown(5YR 5/6). 1.5 42 <br /> 76.0 to 76.5 ft.-Silty SAND,wet,fine grained,light 35 <br /> brown(5YR 5/6). <br /> 76.5 to 80.0 ft. -Silty SAND. <br /> 77.0 <br /> 16 <br /> 78.0 <br /> 79.0 <br /> . 80.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger M EJ <br /> Helper: Tony Young,Robert Kline,&Diego Amador CLAY SILT SAND GRAVEL <br /> Logged By: David Vasbinder <br />