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i <br /> Existing Fuel USTs <br /> - - - - - - <br /> —MW-3A —10 - - - _ _ _ a MW-1A <br /> 89 041 - a, 88 49 <br /> (ND) (1 1) <br /> (ND) V - 950 <br /> , A <br /> V== ! <br /> , a <br /> Carwash <br /> Q <br /> Canopy and <br /> Dispenser Islands-',, <br /> ' - MW-2A <br /> ' 88 64 <br /> - (ND) <br /> (17) <br /> Former UST <br /> Location <br /> _INTERSTATE ROUTE Nom'205 <br /> ONRAMP EXPLANATION <br /> -�- Ground Water Monitoring Well <br /> N Oop <br /> Ground water elevation contour in feet <br /> referenced to mean sea level (MSL) <br /> Arrows indicate approximate ground <br /> water flow direction <br /> 88.64 Ground water elevation in feet above MSL <br /> Scale (ND) 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 (17) MTBE concentration in ppb <br /> Notes Monitoring performed on 20-May-98 <br /> Base map from Fugro map of 4-5-95 Approximate hydtatilic gradient=0 005 <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 TNM Date 02-Jul-98 Approved By Date 2 14 <br />