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Hole Number: Sheet 12 of 18 <br /> ' ERST & ASSOCIATES, INC.- 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 /> Graphic Z L F- <br /> Soil DescriptionLog 9 0 (n Notes <br /> ' J 110.2 to 110.4 ft. -CLAY&GRAVEL,wet. Clay is Borehole Area Air Measurements: <br /> soft,highly plastic,dark gray(10YR 4/1). Gravel is 16 0%LEL CH / 0 ppm VOC <br /> fine grained and subangular. 4 <br /> 111.0 110.4 to 111.3 -SAND with gravel at base,wet, 22 1.5 <br /> ft. 31 <br /> ' well sorted,medium grained,dark yellowish brown 34 <br /> (IOYR 4/6). <br /> 111.3 to 111.5 ft. -GRAVEL,wet,subangular,dark <br /> ' yellowish brown(10YR 3/4). Contains coarse, <br /> 112.0 subrounded sand. <br /> 1 <br /> 113.0 <br /> 114.0 <br /> ' 115.0 <br /> 115.2 to 116.0 ft. -GRAVEL,wet,subangular,dark Borehole Area Air Measurements: <br /> yellowish brown(IOYR 3/4). Contains coarse , v 8 0%LEL CH4 / 0 ppm VOC <br /> ' 1.3 <br /> subrounded sand. 23 1.5 22 <br /> 116.0 <br /> 116.0 to 116.5 ft. -SAND,wet,medium to coarse 22 <br /> grained,well sorted,subrounded,micaceous,grayish <br /> brown(2.5Y 5/2). <br /> ' 117.0 <br /> ' 118.0 <br /> 119.0 <br /> ' 120.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson F/,�] F7 <br /> Helper: James McIntyre&Steve Moore CLAY Sn.T SAND GRAVEL <br /> ' Logged By: Rachael Haynes <br />