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Existing Fuel USTs <br /> - - - - - <br /> —MW-3A — - - - -o - - - - - - - -MW-1A <br /> 87 8752 <br /> (ND)) <br /> (ND) (4 5) <br /> (190) <br /> A <br /> EA= - - � <br /> Carwasli <br /> Canopy and <br /> Dispenser Islands,,; F" <br /> MW-2A <br /> T <br /> 8758 <br /> (ND) <br /> ' (ND) <br /> , <br /> Former UST <br /> Location <br /> _INTERSTATE ROUTE NO- 205 ON RA,, EXPLANATION <br /> Ground Water Monitoring Well <br /> N <br /> Ground water elevation contour in feet <br /> referenced to mean sea level(MSL) <br /> Arrows indicate approximate ground <br /> water flow direction <br /> 8752 Ground water elevation in feet above MSL <br /> Scale (4 5) 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 /> I Inch=30 Feet (190) MTBE concentration in ppb <br /> Notes Monitoring performed on 13-Aug-98 <br /> Base map from Fugro map of 4-5-95 Approximate hydiaulic gradient= 0 001 <br /> PLATE GROUND WATER CONTOUR/CHEMICAL CONCENTRATION MAP <br /> Shell-branded Service Station CAMBRIA <br /> 2 3725 Tracy Boulevard 240-0813 <br /> Tracy, California <br /> Drawn By !N/AK Date 07-Oct-98 Approved By Date 10 � ti <br />