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' h <br /> Hole Number: Sheet 15 of 18 <br /> HERST & ASSOCIATES, INC w AMW-29 Soil Log <br /> Northing: 2,147,760.7 Easting: 6,365,707.4 Ground Surface Elevation: 43.2 <br /> ' Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: DB540 <br /> ' Site Location: Stockton,California Drilling Dates: January 27-February 1,2010 <br /> Soil Description Graphic Z <br /> 6 o a Notes <br /> Log U <br /> Borehole Area Air Measurements: <br /> 30 0%LEL CH / 0 ppm VOC <br /> 0_5 <br /> 141.0 28 1.5 50 <br /> 141.0 to 141.5 ft.-SAND,wet,medium to coarse (refusal) <br /> grained,well sorted,subrounded,micaceous,grayish <br /> brown(2.5Y 5/2). Contains coarse,subrounded gravel. <br /> Cease drilling at 1700 on 1/29/2010. <br /> 142.0 Resume drilling at 0920 on 2/1/2010. <br /> 143.0 <br /> 144.0 <br /> 145.0 <br /> 145.0 to 146.5 ft.-SAND,wet,medium to coarse Borehole Area Air Measurements: <br /> grained,well sorted,subrounded,micaceous,grayish 17 0%LEL CH / 0 ppm VOC <br /> brown(2.5Y 5/2). 1_5 <br /> 146.0 29 1.5 19 <br /> 43 <br /> 147.0 <br /> 1 148.0 <br /> 149.0 <br /> ' 150.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson F72 IFM ELL'] <br /> Helper: James McIntyre&Steve Moore CLAY SILT SAND GRAVEL <br /> Logged By: Rachael Haynes <br />