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North <br />A <br />a <br />1a <br />20 <br />Depth 30 <br />(feet) <br />40 <br />50 <br />1� <br />South <br />j' Projection A, <br />SS -1 58-2 of MW -2 <br />I t <br />t I Tank 1' t Tank t <br />1 , i 2 r 11 <br />2.31 <br />1 I I <br />1 I 2.8 12 2-1t <br />1 <br />.I <br />i <br />6.6 I <br />ii t <br />I I 10./ <br />60 I} <br />'e <br />9 <br />I i le' <br />i� <br />. i <br />LEGEND i <br />11 Sample Interval with TPHe Concentration (mg/Kg) .; <br />7 Estimated High Groundwater Table <br />V— Groundwater Table (19 August 1994) <br />Note: USTs replaced in Aprii 1987. <br />� 1 <br />UST <br />Excavation <br />EXTENT OF <br />TPHe IN SOIL <br />APPROXIMATE <br />SCALE (feet) <br />0 20 <br />10 <br />if <br />FIGURE.; 7 <br />Il <br />VERTICAL EXTENT OF SOIL CONTAMINATION, TANKS 1 AND 2 <br />DRAWN SEP <br />APPROVED. BY: DSM SAN JOAQUIN COUNTY MOSQUITO AND VECTOR CONTROL DISTRICT <br />DATE: 6/13/95 STOCKTONP , CALIFORNIA <br />PILENAME: MVSTXSEC-OWG II <br />