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u <br /> i <br /> EXPLANATION HARBOR SEA <br /> F+ <br /> � <br /> Groundwater Monitoring Well FOODSTORE FORMERPUMP r <br /> LIQUOR S�Mo <br /> MW-15ARCOCHARTER WAY <br /> STORE VACANT N <br /> -1045 <br /> f <br /> O Vapor Extraction Well LOT BAIT&TACKLE 94 {612) <br /> 1 <br /> FISLANDS <br /> z (79 4) <br /> i d <br /> Groundwater elevation contour in feet referenced <br /> to mean sea level (msl) Arrows indicate <br /> approximate groundwater flow direction <br /> WEST CHARTER WAY <br /> -1120 Groundwater elevation in feet above ms] MW-1 / <br /> (NA) NA;Not analyzed (70�} <br /> Y (9 20)( <br /> MW-4 VEW-3 <br /> (0 699) Benzene concentration in ppb -912 VEW-1 <br /> PUMP <br /> -1007 (<0 500)(0 890 (<2 50) -5 -10.14 <br /> * O MW-9 <br /> ) MW <br /> (<2 SO) MTBE concentration in ppb o (<2 50) _ -951 <br /> `(49G) <br /> ISLANDS � <br /> Notes Monitoring performed on 18-August-1999 , I EW-2 I O (<O 500) (12 b%%. <br /> o <br /> � o <br /> Approximate hydrauLc gradient=0 02 � MW-13 I FORMER _ VEW-4 � \W <br /> -11 20 r STATION l TUNE UP \ MW-17 <br /> i STATION I I�I I CENTRO <br /> (0 699) MW_ 1 -10 12 MART <br /> (<2 50) Moo«, MASTERS 9 �'r (78.6) <br /> t MW-2 # I I II <br /> 1 c <br /> -3 <br /> (2,670) <br /> (<2 50) <br /> -903 (<100) <br /> MW-6 (972 <br /> (NA) <br /> CARW <br /> CIIEVRON STATION -991 (C2 50 <br /> (305)1 A <br /> 11 <br /> 5 MW-10 <br /> 38 — <br /> Z FENCE (446) <br /> 04 (248) <br /> MW-8 o f <br /> U -10.35 <br /> z (130) <br /> a (<2 50) N <br /> MW-14 <br /> -1036 <br /> (1 05) I BUILDING <br /> (<2.50) <br /> f <br /> I MW-16 <br /> NA �1 Scale <br /> I <br /> BUILDING P <br /> j0 30 60 120 Feet <br /> I 1 Inch=60 Feet <br /> 1 <br /> r � <br /> i <br /> Base map from RRM map dated 11-Aug-98 <br /> IGURE GROUNDWATER CONTOUR/CHEMICAL CONCENTRATION MAP I1 DI <br /> Former Texaco Service Station 3 CAMBRA <br /> 2 440 West Charter Way <br /> Stockton, California 241-1399 <br /> Drawn By LS Date 10-Nov-99 Approved By Date <br />