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EXPLANATION <br /> I <br /> Q Approximate location of well proposed to be abandoned I <br /> 0 MW-9 <br /> Approximate location of,all proposed to be sampled on I Q <br /> f B a semi-annual basis I O <br /> r I � <br /> 3 <br /> Approximate location of well proposed to be sampled on I <br /> an annual basis O <br /> 1 J <br /> Air spargingwell not sampled O I = <br /> Typical horizontal groundwater roundwater Bow direction (Cardoza Property) I 'I <br /> I <br /> I � <br /> • >1 ugfl Estimated line of equal benzene concentration <br /> (inferred from data,shown for evaluationof site conditions, MW-3 I V <br /> not meant to imply certainty) _ <br /> 1. ..-_....,-.. NMW-to I _. <br /> (Do Sousa <br /> Property) <br /> I <br /> I <br /> -^ I <br /> 0EX-9 i <br /> EX-10 0 .::ASW-1 <br /> --—— -—————— — —Q-- MW-12 EX-12 I" MW-7 <br /> MW-SA W® EX-6 p8 5 '^"4 E)t-3 2 M�W-8 OMN613—————'M,11 <br /> -------------- — . Former spill area:son excavated <br /> —end�eptaaywiBr fill------ ____ Chevron_ _ <br /> pipeline <br /> Median <br /> GRANT LINE ROAD <br /> a <br /> � y ®ft <br /> °8n <br /> o <br /> .v -—————————————' <br /> Approximate <br /> a: -----" <br /> eR ----------------------- Scale <br /> E NOTE:Plari adapted from Figure 2 of^Additional Subsurface Investigation'by t <br /> ' <br /> y y a byahtem Geologic Resources,Inc (Pombo Property) ESTIMATED EXTENT OF BENZENE IN GROUNDWATER <br /> .,September 1991 and city map Provided AND GROUNDWATER FLOW DIRECTION <br /> R n s by fhe City of Tracy. <br /> Corral Hollow and Grant Line Roads Site <br /> e Tracy;California <br /> //l/p��.. Po Figure <br /> - I GEOMATRIX C2463 1 <br />