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i <br /> �l <br /> ROSE MARIE LANE <br /> Planter <br /> ` *MW-1 <br /> \ <br /> -925 <br /> Waste -92 (ND) <br /> ____ Oil <br /> �\ Tank <br /> W <br /> Z <br /> - <br /> Air& ti > <br /> 1 <br /> Water A d <br /> /Fuel US` s N , <br /> !------------- -� <br /> o/ ----- ------------- w <br /> q 4. <br /> Station ____ - � <br /> r - - - - - - - - - - - - - - <br /> Building <br /> 1 <br /> Canopy and <br /> MW-2 <br /> ' Dispenser l Exxon <br /> -888/ Islands ' Monitoring <br /> N (ND) � � Well <br /> � L- Vent Lines - - - - - - - MW-4- �- <br /> vEW-2 -887 ! <br /> - - - --- ---- -- - - - - - (ND) <br /> -------- ------ -- <br /> VEW-1 �ll <br /> ;:'�'#-MW-3 <br /> -9 28 <br /> EXPLANATION (ND) <br /> -* Ground Water Monitoring Well <br /> Vapor Extraction Well Former USTs <br /> Location <br /> R / Ground water elevation contour in 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 <br /> 1 Inch=20 Feet <br /> Note Monitoring performed on 25-Feb-97 <br /> Approximate Hydraulic Gradient=0 01 Base map from Fugro map of 12-Nov-1992 <br /> PLATE GROUND WATER CONTOURIBENZENE CONCENTRATION MAP <br /> Shell Service Station enviros <br /> 2 4445 Pershing Avenue 97373 <br /> SStockton, California <br /> Drawn by MED Date 25-Feb-97 Approved By Date �` <br />