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Hole Number: Sheet 15 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 o a Notes <br /> Log 9 U 0 <br /> CAa <br /> ' 140.0 to 141.0 ft.-Silty SAND,moist,loose,poorly Borehole Area Air Measurements: <br /> sorted,subrounded to subangular,mica throughout, 20 0%LEL CH4 / 0 ppm VOC <br /> brown(IOYR 4/3). Loose gravel at top of spoon. 28 1.0 20 <br /> 141.0 <br /> 22 <br /> ' 142.0 <br /> ' 143.0 <br /> 144.0 <br /> ' 145.0 <br /> 145.0 to 145.8 ft.-GRAVEL&SAND,moist,loose, Borehole Area Air Measurements: <br /> fine to coarse grained,poorly sorted,subangular to 20 0%LEL CH4 / 0 ppm VOC <br /> subrounded,brown(1OYR 4/3). <br /> 1.2 <br /> 146.0 145.8 to 146.2 ft.-Silty SAND,moist,loose,poorly 29 1.5 23 <br /> sorted,subrounded to subangular,brown(10YR 4/3). 19 <br /> i 147.0 <br /> ' 148.0 <br /> 149.0 <br /> ' 150.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson <br /> Helper: Mac,Steve,&Charlie CLAY SILT SAND GRAVEL <br /> ' Logged By: Leslie Keuss <br />