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21-Feb-03 <br /> i� U C) <br /> ! v d N <br /> 3 W <br /> O Y' <br /> +ArcoMW-IB ,� N <br /> Former ,Arco MW-1C W V CL <br /> E <br /> Harbor Sea Food Pump -14 17 o <br /> Store I Islands O 2 Z <br /> Liquor Store Vacant Lot Former ARCO 1 Charter Way z O O <br /> 441 W.Charter Way Batt&Tackle MW-15 V <br /> Arco MW-81C z <br /> -1368 <br /> Arco MW-8B <br /> 400, 0 <br /> 11001� O U <br /> -140 <br /> WEST CHARTER WAY <br /> { <br /> -14 s <br /> MW-7 <br /> MW-4 VEW-1 VFW-3_ MW- <br /> Pump + + 1 MW-5 <br /> M <br /> + T y <br /> VEW-2 <br /> 15.0 0 a) <br /> r Food -� rn Y Q <br /> Islands , �' �'" <br /> I $$0MW-18-120 MW- - I II F,I 41` VEW- <br /> - <br /> � ' T NIW-19-81 <br /> MW-11T-1541 <br /> MW-13 Canopy MW-19-120 <br /> <0 50 Pit Stop MW-11-122 MW-11-82 + MW-17 Centro Mart <br /> Q <br /> Former& ' 66 Lube and -15.31 <br /> [-y Product Lines Current 2$ 32 U <br /> W M -2 USTs Former Tune <br /> MW <0 50 <br /> fYi - NIW-3 <br /> Texaco <br /> MW-6 -___- Station <br /> Chevron Station Z <br /> .y <br /> 508 W.Charter Way G Car Wash MW_10 <br /> U - Fence — EXPLANATION <br /> z <br /> ~-1 Vent Lines - Remediation * Groundwater monitoring well-Zone A <br /> MW-8 Enclosure Groundwater mgmtonng well -Deeper zones <br /> I Vapor extraction well C <br /> f� Destroyed well <br /> Groundwater elevation contour in feet referenced to N <br /> Toscono Site f / mean sea level f t msl) Arrows indicate <br /> 1444 Lincoln St. ! / d <br /> {LIST case) approximate gr undwater flow direction v <br /> MW-14 ! /Well designatto i <br /> .(D <br /> Scale (ft) ' MW-11-122 Groundwater elevation,ft msl N a <br /> -15 31-----Benzene concetrations to groundwater to parts per O <br /> 0 25 50 100 3: Cis <br /> 32 billion(ppb) M — <br /> MW 16 <0 50--MTBE concentrations to groundwater to ppb r o <br /> 1426 Lincoln St. �... -(-- CZ <br /> (UST case) I <x Not detected at j eporting limit x FIGURE c <br /> = o <br /> } Approximate hydraulic gradient=0 01 4 E 0 <br /> ! O o <br /> r I U- NT rn <br /> 1 <br />