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Hole Number: Sheet 13 of 18 <br /> ' HERST & ASSOCIATES, INC.- AMW-30 Soil Log <br /> Northing: 2,148,062.1 Easting: 6,367,022.3 Ground Surface Elevation: 45.0 <br /> ' Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: Boart-Longyear DB540 <br /> ' Site Location: Stockton,California Drilling Dates: January 18-22,2010 <br /> ' Soil Description Graphic a §c a Notes <br /> Log z Q rn <br /> ' 120.0 to 121.0 ft.-SAND,moist,loose,fine to coarse Borehole Area Air Measurements: <br /> grained,poorly sorted,subrounded,mica throughout 22 0%LEL CH 4 / 0 ppm VOC <br /> dark grayish brown(1 OYR 4/2). Contains 20%fine <br /> gravel throughout. 24 1.5 40 <br /> ' 121.0 <br /> 32 <br /> ' 122.0 <br /> ' 123.0 <br /> 124.0 <br /> ' 125.0 <br /> 125.0 to 125.5 ft.-SAND,moist,loose,medium to <br /> coarse grained,poorly sorted,subrounded to Borehole Area Air Measurements: <br /> subangular,brown(IOYR 4/3). Contains mica and 22 0%LEL CH4 / 0 ppm VOC <br /> 20%fine grained gravel throughout. 25 0-9 25 <br /> ' ft <br /> 126.0 1.5 <br /> 125.5 to 125.9 .-SAND,moist,loose,fine to coarse 24 <br /> grained,poorly sorted,subrounded,mica throughout <br /> dark grayish brown(IOYR 4/2). <br /> ' 127.0 <br /> ' 128.0 <br /> 1 <br /> 129.0 <br /> ' 130.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson M EI <br /> ' Helper: Mac, Steve,&Charlie CLAY SILT SAND GRAVEL <br /> Logged By: Leslie Keuss <br />