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EXPLANATION <br /> Ground Water Monitoring Well <br /> S Ground Water Recovery Well <br /> Soil Vapor Extraction Well <br /> Ground water elevation contour in feet <br /> referenced to mean sea level (MSL) <br /> 7 Arrows indicate approximate direction of <br /> ground water flow <br /> 7085 Ground water elevation in feet MSL <br /> (1 0) Benzene concentration in ppb <br /> ND =Not Detected <br /> NM=Not Measured <br /> Notes Monitoring performed on 23-Aug-96 and <br /> 5-Sep-96 <br /> Approximate Location of CHANNEL STREET Approximate Hydraulic Gradient=0 01 <br /> Former Tank Excavation <br /> - - — -- -- - -- - - RW-1 <br /> Sidewalk 7097 <br /> -- - — - —MW-2---- VEW-3 -NM s-(ND) �I <br /> - <br /> 7126 <br /> (ND)_— (ND) i Mw-4 <br /> 170 SS <br /> 715-TEW-2 L - J # 7126 (10} <br /> NM e Pad <br /> NM (ND) <br /> ) <br /> ( ) EW-1 <br /> MW-5 .72�—r' NM Canopy S, R70 8b <br /> 7219 �2�/ (ND) (ND) <br /> (ND) 7T 1 ^1 <br /> MW-1 <br /> 7114 <br /> (ND) O N <br /> = y <br /> VEW-4 <br /> Building NM <br /> (ND) W <br /> Former Waste Channel Bulkhead <br /> Oil Tank (Below) ' <br /> Concrete Deck Parking Area <br /> Scale <br /> 0 15 30 60 Feet <br /> Base map from Fugro map of 12-13-95 I inch=30 Feet <br /> PLATE GROUND WATER CONTOUR/BENZENE CONCENTRATION MAP <br /> C M Weber Enterprises Property environ <br /> 2 141 North E1 Dorado Street <br /> Stockton, California 96369 <br /> Drawn By MED Date 30-Sep-96 Approved By LAk Date /0 +_a'76_ <br />