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11-Aug-03 <br /> ' O d N <br /> > > O a <br /> Arco MW-111 Q� N � <br /> Former Arca MW-1C W W CL <br /> Harbor Sea Food Pump NM ' L O <br /> CD <br /> Store Islands � <br /> C <br /> Liquor Store Vacant Lot Former ARCO Charter Way Z ' � G <br /> 441 W.Charter Way Bait&Tackle MW-15I :f <br /> C O <br /> O <br /> Arco MW-8C L <br /> Z O <br /> -12.66 d, a v <br /> Arco MW-811 <0.5 C <br /> 0.85 Ile <br /> WEST CHARTER WAY <br /> f V <br /> MW-7 MW-4 VFW-1 MW-1 .9 <br /> Pump <br /> + MW-5 <br /> VEW- <br /> b X <br /> �,I II II 1,11 al <br /> Islands MW-18-120 MW-18-80 �� ood 4 iii MW-19-81 <br /> .�� '� VEW- <br /> 4 -13.51 I',--1VIaIt �� 41' MW-11 <br /> MW-13 240 Canopy _'___ '_ _- --' MW-19-120 <br /> I — T--- <br /> <0.50 ; t Z 1 : -13.70 Pit Stop MW-11-122 MW-11-82 + MW-17 Centro Mart Q <br /> Former& i 11 Lube and -1 45 8 U <br /> W Product Lines Current Tune <br /> MW-2 USTs C _ <0.50 <br /> Former MW-3 ` <br /> Texaco If <br /> MW-6 ''�' Station <br /> Chevron Station a EXPLANATION <br /> 508 W.Charter Way Car Wash 3'� MW-10 <br /> Fence -- * Groundwater monitoring well-Zone A <br /> a Vent Lines Remediation + Groundwater m1nitoring well-Deeper zones <br /> MW-8 Enclosure + Vapor extraction well <br /> 0 Destroyed well C <br /> R , Groundwater elevation contour in feet referenced to O <br /> -N- r mean sea level ( t msl). Arrows indicate cc <br /> Toscono Site / approximate gro ndwater flow direction. U) <br /> 1444 Lincoln St. Qi <br /> (UST case) MW-11-122--We11 designationt? <br /> MW-14 -15.31 Groundwater elevation,ft msl. .� <br /> 32 Benzene concenrations in groundwater in parts per N <br /> Scale(ft) <0.5 billion(ppb) O <br /> MTBE concentr tions in groundwater in ppb U ig: co <br /> 0 25 50 100 X CD E <br /> <x Not detected atr porting limit x O r- a <br /> 1426 Lincoln St. MW-16 f� � <br /> (UST case) NM Not measured FIGURE L- U <br /> m � <br /> Approximate hydraulic gradient=0.005 E 2 <br /> O .o 0 <br /> LL v 05 <br />