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Existing Fuel USTs <br /> 8 <br /> �--~ - - - - - - `ro - - - - - - - -mss - - - - � MW-1A <br /> X87 <br /> MW-3A 42 <br /> (2-4) <br /> 8750 \ (2100) <br /> (ND) <br /> A <br /> Carwash U <br /> Canopy and \ <br /> Dispenser Islands-,, I <br /> - MW-2A <br /> �- <br /> 8750 <br /> (ND) <br /> 63 <br /> if Former UST <br /> Location <br /> ON <br /> RAMP - YNTERSTATE ROUTE NO. 205 <br /> EXPLANATION <br /> fGround 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 /> 8750 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 /> I Inch=30 Feet (6 3) MTBE concentration in ppb <br /> Notes Monitoring performed on 24-Nov-98 <br /> Base map tram Fugro map of 4-5-95 Approximate hydraulic gradient=0 001 <br /> PLATE GROUND WATER CONTOURICHEMICAL CONCENTRATION MAP <br /> Shell-branded Service Station CAMBRIA <br /> 2 3725 Tracy Boulevard 240-0813 <br /> Tracy, California <br /> Drawn By AKC Date 12-Jan-99 Approved By--4,L—Date <br />