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� C <br /> ROSE MARIE LANE <br /> Planter <br /> ` MW-1 <br /> * <br /> � -1189 <br /> \ -- -, Waste IjBs (ND) <br /> - Oil (ND) <br /> Tank <br /> � <br /> ------------ <br /> Z <br /> Air& <br /> Water ` d <br /> ---------- Z <br /> Fuel USTs <br /> •II 7S ---------------� <br /> Station <br /> r - - - - - - - - - - - - - - - <br /> Building Yj <br /> Canopy and <br /> Dispenser 1 Exxon <br /> MW-2 <br /> MW-2 � Islands ' Monitoring <br /> (ND) <br /> Well <br /> N (ND) <br /> 7 Vent Lines - - - - - - - _ <br /> _VE <br /> _-?===_-__ MW-4 <br /> -1159 <br /> VEW-1 (ND) <br /> NA (7 9) MW-3 <br /> (ND) V11 75 <br /> EXPLANATION (29} (ND) <br /> Ground Water Monitoring Well - - \ (ND) <br /> Vapor Extraction Well Former USTs <br /> Ground water elevation contour in feet referenced Location - <br /> to mean sea level (MSL) Arrows indicate <br /> approximate ground water flow direction <br /> -1159 Ground water elevation in feet Scale <br /> (ND) Benzene concentration in ppb <br /> ND=Not Detected 0 10 20 40 Feet <br /> (7 9) MTBE concentration in ppb 1 Inch=20 Feet <br /> Note Monitoring performed on 21-Nov-97 <br /> Approximate Hydraulic Gradient=0 003 Base map from Fugro map of 12-Nov-1992 <br /> 4ri <br /> E GROUND WATER CONTOURICHEMICAL CONCENTRATION MAP <br /> Shell Service Statton CAMBRIA <br /> 4445 Pershing Avenue 373 <br /> Stockton, California <br /> Drawn by JG Date 15-Jan-98 Approved BynAA Date <br />