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9 <br /> t <br /> B4 B1 � <br /> CL CL <br /> 10 <br /> ? ML Tank Excavation ML <br /> 20 — _ — _ _ <br /> I <br /> y 30 <br /> v CL <br /> ' v1 <br /> 40 ? <br /> V 3 <br /> ' <br /> 50 ?- - - - T <br /> —SP ? <br /> T.II+50 0 <br /> CL <br /> \ ? _ — _ - - _ SM ' � <br /> 70 ` --- z -- --- M CL <br /> ' 8o <br /> Tpa865 <br /> 90 <br /> KEY LEGEND <br /> —? = Estimated zero line of CL = Silty clay <br /> soil contam€natw <br /> ML = Clayey silt/Fine sandy silt <br /> ' = Soy! Boring Sample <br /> SP = Sand, poorly graded <br /> TD = Total Depth <br /> SM = Silty sand <br /> i ' 0 5 10 15 20 <br /> i <br /> Scale a Fe« <br /> CROSS SECTION B - B' WKA NO 2307 02 <br /> 1444 MARIPOSA ROAD DATE 12/93 <br /> WALLACE • KUHL g ASSOCIATES, INC <br /> GEOTECHNICAL ENGINEERING Stockton, California PLATE NO 4 <br /> QHOLOGIC k ENVIRONMENTAL SERVICES <br />