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Existing Fuel USTs <br /> —MW-3A - - -.a - - - - - - - <br /> ' 90 67� MW-1A <br /> (ND) y 89 341 <br /> (40) -- -- ----V T (ND) <br /> (81) <br /> r _ <br /> 1 A <br /> , <br /> Carwash <br /> Canopy and <br /> Dispenser Islands',, <br /> ' R - MW-2A <br /> 8978 <br /> (7 6) <br /> (4500 <br /> Former UST <br /> Location <br /> RAMP .INTERSTATE ROUTE NO.205 4N � EXPLANATION <br /> Ground Water Monitoring Well <br /> N <br /> > *4p Ground water elevation contour in feet <br /> referenced to mean sea level(MSL) <br /> Arrows indicate approximate ground <br /> water flow direction <br /> 9067 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 (4 0) MTBE concentration in ppb <br /> Notes Monitoring performed on 11-Feb-98 <br /> Base map from Fugro map of 4-5-95 Approximate hydraulic gradient=0 014 <br /> PLATE GROUND WATER CONTOUR/CHEMICAL CONCENTRATION MAP <br /> Shell Service Station CAMBRIA <br /> 2 3725 Tracy Boulevard 240-0813 <br /> Tracy, California <br /> Drawn By TNM Date 13-Apr-98 Approved By Date 'l�i� <br />