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ENVIRONMENTAL SERVICES <br /> Western Dlvalon CLIENT SITE NUMBER LOCATION <br /> Exxon Co USA RS 7-3942 4444 Pershing Ave <br /> Stockton,CA <br /> DRILLING AND 8 Inch Hollow-Stem Auger <br /> SAMPLING I <br /> LOG OF SOIL BORING 1VII1 <br /> METHODS 2 Inch Spld Spoon Sampler <br /> WATER LEVEL 30 22' 30 42' DRILLING <br /> Coordinates. 121°1910"W START FINISH <br /> 0375911" N TIME TIME TIME <br /> Elevation to of cash 7 80 ft MSI DATE 1/30191 2119191 0815 1300 <br /> P 9• DATE DATE <br /> Casing below surface 0 40 ft REFERENCE TOC TOC 1/15/91 1/15191 <br /> Inches SURFACE Dirt,grass field <br /> CL Q n WELL DEPTH GRAPHIC CONDITIONS <br /> O m WELL <br /> (Feet) LOG <br /> m a DESCRIPTION by: S Sanford <br /> r p -- <br /> 1 Dry silty clay, brown, no odor <br />' 2 <br /> 3 <br /> 25 4 <br /> 8 8 500 <br /> 5 <br /> H - C . <br /> 6 As above <br /> 7 - <br /> 8 <br /> 20 9 <br /> L 16 16 50 1 0 <br /> 50 10 <br />' 11 <br /> 12 <br /> CL Brown silty clay, dry with some fine sand <br />' 13 r <br /> 12 14 <br /> 18 18 18 0 <br /> 30 15 - <br /> 16 Brown/gray silty clay, no odor <br />' 7 CL <br /> i <br /> 18- <br /> 19 - <br /> 18 <br /> 8 <br /> 1s 19 _ <br /> 18 18 20 40 20 LCL Dry gray silt/clay <br /> Page 1 of 3 <br /> 1 <br />