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ROSE MARIE LANE <br /> Planter <br /> -10 30 <br /> \ ; Waste (ND) <br /> Oil <br /> Tank <br /> W <br /> z <br /> -�02a --------- -------- w <br /> Air& <br /> Water <br /> Fuel USTs----------------- <br /> \ ~ <br /> ------------------ (y <br /> Station 'Ip ----------------- <br /> 1 - - - - - - - - - - - - - - - - - <br /> Building i <br /> Canopy and <br /> MW-2 ' L:1 Dispenser w% ❑ Exxon <br /> -10051, Islands Monitoring <br /> (ND) ' ` \ i Well <br /> N <br /> - Vent Lines - - - - - - - MW-4- <br /> vE 2 -10 07 <br /> � VEW-1 <br /> MW-3 <br /> -1010 <br /> EXPLANATION (ND) <br /> Ground Water Monitoring Well <br /> Former USTs <br /> Vapor Extraction Well Location <br /> R / Ground water elevation contour to feet referenced <br /> �r to mean sea level (MSL) Arrows indicate <br /> approximate ground water flow direction Scale <br /> (ND) Benzene concentration in ppb 0 10 20 40 Feet <br /> ND=Not Detected 1 Inch=20 Feet <br /> Note Monitoring performed on 10-Jun-97 <br /> rY <br /> proximate Hydraulic Gradient=0 003 Base map from Fugro map of 12-Nov-1992 <br /> GROUND WATER CONTOUR/BENZENE CONCENTRATION MAP •Shell Service Station envl�'os <br /> 4445 Pershing Avenue 97373 <br /> Stockton, California <br /> Drawn by JWN Date 9-Jul-97 Approved By ,A—Date - 7 <br />