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s <br /> PORTER AVENUE <br /> MW-2 MW-1 <br /> 6098 _ coq coq 0 95 <br /> (0 90) ,[ / (0 62) Existing UST <br /> Former UST Location <br /> Location / � / (3-10,000 gal ) <br /> - - - ` <br /> Q - - --- - �� \ ♦ / <br /> IN � <br /> VEW-2'- -V <br /> - - - EW-1 <br /> DRY NM <br /> I <br /> I� <br /> F/BB�l tng <br /> I <br /> 0.. <br /> O ' <br /> nopy and ' <br /> tspenser Islands <br /> I <br /> / I I <br /> o ' I <br /> a� <br /> MW-3 <br /> 609 <br /> (37) <br /> EXPLANATION <br /> - Ground Water Monitoring Well <br /> Vapor Extraction Well <br /> N Ground water elevation contour <br /> in feet referenced to Mean Sea <br /> Level (MSL) Arrows indicate <br /> Scale approximate flow direction <br /> 0 15 30 60 Feet 6095 Ground water elevation in feet <br /> 1 Inch=30 Feet <br /> anove N131- <br /> (37) Benzene concentration in ppb <br /> NM Not monitored <br /> Notes Monitoring performed on 10-Jun-97 <br /> Base map from Fugro map of t-10-94 Approximate hydraulic gradient=0 0005 <br /> TE GROUND WATER CONTOUR BENZENE CONCENTRATION MAP <br /> Shell Service Station en viros <br /> LA <br /> 2 6131 Pacific Avenue 97374 <br /> Stockton, California <br /> Drawn By MED Date 29-Jul-97 Approved By Date <br />