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11-Aug-03 <br /> i Q a <br /> O r <br /> O N <br /> Arco MW-1B 0 N <br /> +ArcoMW-1C W i 0. <br /> Harbor Sea Food ) W <br /> Stare --Former E 4-11c <br /> Pump r1] <br /> g <br /> Liquor Store Vacant Lot Former ARCO Islands Charter Way <br /> 441 W.Charter Way Bait&Tackle MW-15 G cc <br /> -13.41 L <br /> <0.50 <br /> Arco MW-8C Z <0.50 v <br /> Arco MW-8B O <br /> V <br /> l� <br /> WEST CHARTER WAY 1,� v <br /> -12.85230 <br /> `C <br /> MW4 190 MW-9 <br /> -12.88 'j,? J/ -13.22 <br /> \ <0.50_ 190 M�,_5 1,600 <br /> MW-7 78 VEW.1 -13.14 <10 <br /> -12.521 + + 4- 2.8 <br /> Pump <0.50`, 6.3 \ <br /> C� <0.50 VEW-2 <br /> `Canopy <br /> Islands ';� _' Food '� �!� VEW-4 Cie <br /> MW-18-80 \ i; i� Mart\ i i' MW-19-81 m <br /> \Y>/ <br /> MW-13 MW-18-120 ___ i= _ I -- 44-MW-19-120 <br /> -13.36 <br /> �3 35- MW-11-82 t� <br /> -12.46 Product Lines 4 41 <br /> Former Pit Stop 1,300 1-122 + MW-17. Centro Mart Q <br /> <0.50 Former& Texaco Lube and 83 -13.42 U <br /> <0.50 Current <br /> 1 Station Tune <0.50 <br /> 7 USTs <br /> MW-6 AM 2 '-4-- _= MW-3 <0.50 <br /> -12.32 -12.47 ;:' T 120 <br /> F <0.501 <0.50 <br /> Chevron Station 0.57T <0.50 /000 <5.0 <br /> 508 W.Charter Way a /Car <br /> I <000, + MW-10 <br /> G Wash _ _ _1x.39 EXPLANATION <br /> Fence I <br /> / Vent Lines <00- �150 # Groundwater monitoring welt-Zone A <br /> or MW-8 Re mediation + Groundwater monitoring welt-Deeper zones <br /> NM En losure <br /> + Vapor extraction well C <br /> 4 0 Destroyed well � <br /> -N- cc <br /> Groundwater elivation contour in feet referenced to N <br /> ! mean sea level(ft msl). Arrows indicate <br /> y <br /> 1444 Lincoln St.Toscono Site approximate grundwater flow direction. v <br /> (UST case) <br /> MW-14 Well designatio <br /> OA -12.82 /Groundwater el�vation,ft msl. <br /> Scale(ft) -� <0.50 MW-6/Benzene concentrations in groundwater in parts per p > <br /> 0.92 -13.58 <br /> <0.50 -"* billion(ppb) 3� ca <br /> 0 25 50 100 0.65 --MTBE concentrations in groundwater in ppb k o <br /> (D C0 <br /> 1426 Lincoln St. MW-16 0 <x Not detected at�eporting limit x ~ U U <br /> (UST case) FIGURE 1- <br /> NM Not measured �, o <br /> M Approximate hydraulic gradient= 0.003 to 0.007 2 11- � 0 <br /> " C) <br /> ' , L <br /> l � in <br /> k <br />