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•r <br /> Existing Fuel USTs <br /> ------ - --- - - - --- - -- ----- -- ice' <br /> - --- -- -- ------ -- <br /> MW-IA <br /> 7381 <br /> _I MW-3A (ND)�`� <br /> 8740 (14,300) <br /> (ND) _ <br /> Nn) <br /> _ 873 <br /> I 9 <br /> 87 <br /> 40 04 <br /> Carwash 8,- <br /> Canopy and <br /> Dispenser Islands ` - <br /> 8j <br /> I - 4 <br /> 2 <br /> MW-2A <br /> 87 431 <br /> (0 927) <br /> (125) <br /> Former UST I <br /> Location <br /> AMP �INTERSTATE ROUTE N0.205 <br /> ON R EXPLANATION <br /> Groundwater Monitoring Well <br /> N <br /> Groundwater elevation contour in teet <br /> referenced to mean sea level(MSL) <br /> Arrows indicate approximate groundwater <br /> flow direction <br /> 8743 Groundwater elevation in feet above MSL <br /> Scale (0 927) Benzene concentration in ppb <br /> ND=Not detected at 0 5 ppb detection limit <br /> 0 15 30 60 Feet <X=Not detected at detection limit X <br /> 1 Inch=30 Feet (125) MTBE concentration in ppb <br /> Notes Monitoring performed on 30-Aug-99 <br /> Base map from Fugro map of 4-5-95 Approximate hydraulic gradient=0 0006 to 0 0008 <br /> 4 FIGURE GROUNDWATER CONTOUR/CHEMICAL CONCENTRATION MAP <br /> Shell-branded Service Station CAMBRIA <br /> 2 3725 Tracy Boulevard 241-0813 <br /> Tracy, California <br /> Drawn By RIP Date 05-Oct-99 Approved By Date In-.1q-7q <br />