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Hole Number: Sheet 4 of 8 <br /> HERST & ASSOCIATES, INC.- ®13 Soil Log <br /> Northing: 2,146,427.3 Easting: 6,361,711.9 Ground Surface Elevation: 37.2 <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 13- 17,2008 <br /> V 'U <br /> Graphic Z u.> <br /> Soil Description Description o Notes <br /> Log � va <br /> Q� <br /> 100.0 to 100.9 ft. -Silty SAND with abundant mica, Borehole Area Air Measurements: <br /> moist,fine grained,stiff,moderate brown(5YR 4/4). 15 0%LEL CH 4 / 0 ppm VOC <br /> 0_9 14 <br /> 101.0 1.5 23 <br /> 101.3 to 105.0 ft.-Silty SAND. 31 <br /> 102.0 <br /> 6 <br /> 103.0 <br /> 104.0 <br /> 105.0 <br /> 105.0 to 106.5 ft. -SAND,moist,fine to medium 22 <br /> grained,well graded,moderate yellowish brown <br /> (IOYR 5/4). 1_5 30 <br /> 106.0 1.5 33 <br /> 32 <br /> 106.0 to 110.0 ft.-SAND. <br /> 107.0 <br /> 7 <br /> 108.0 <br /> 109.0 <br /> 110.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Paul Draeger LLA <br /> Helper: Robert Kline,Brian Johnson,&James McIntyre CLAY SILT SAND GRAVEL, <br /> Logged By: David Vasbinder <br />