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ROSE MARIE LANE <br /> :Planter <br /> *MW-1 <br /> -1167 <br /> \ - Waste D) <br /> ------ Oil <br /> Tank <br /> 0 ------------------ Z <br /> Air& <br /> Water <br /> t Fuel USTs <br /> x <br /> ——--——— ———————-- x <br /> a � <br /> Station ---------------- <br /> Building , T <br /> !� <br /> Canopy and � <br /> MW-2-22 Dispenser Exxon <br /> -11501 Isiands ' Monitoring <br /> N <br /> (ND) ' _ Well <br /> - Vent Lines - - - - - - - MW-4 <br /> VE -2 -115 <br /> ------------------------ <br /> � VEW-1 <br /> *MW-3 <br /> -1148 <br /> EXPLANATION (ND) <br /> Ground Water Monitoring Well <br /> Vapor Extraction Well Former USTs <br /> ..40 Ground water elevation contour in feet referenced Location <br /> to mean sea level (MSL) Arrows indicate ` <br /> approximate ground water flow direction <br /> Scale <br /> -1152 Ground water elevation in feet <br /> (ND) Benzene concentration in ppb 0 10 20 40 Feet <br /> ND=Not Detected 1 Inch=20 Feet <br /> Note Monitoring performed on 22-Aug-97 <br /> Approximate Hydraulic Gradient=0 003 Base map from Fugro trap of 12-Nov-1992 <br /> PLATE GROUND WATER CONTOUR/BENZENE CONCENTRATION MAP • <br /> Shell Service Station environ <br /> Z4445 Pershing Avenue 97373 <br /> Stockton, California <br /> Drawn by TNM Date 14-Oct-97 Approved By�Date /o ,� <br />