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i <br /> 5 Nov 03 <br /> � U d <br /> G G? N <br /> C O <br /> Former <br /> Arco MW-1B O N (n <br /> U N <br /> Pump Arco MW-1C W L CL <br /> Harbor Sea Food -13 76 C��] Qy � <br /> Store I Islands <br /> � C <br /> Liquor Store Vacant Lot Former ARCO Charter Way Z O <br /> 441 W.Charter Way , Batt&Tackle 4W-15 O Cc <br /> z # <br /> Arco MW-8B Arco M -8C <br /> -13b9 --140- <br /> 0-I4 <br /> UO <br /> WEST CHARTER WAY mU <br /> -I4.25 <br /> VE <br /> W-1 <br /> MW7W-9 <br /> MW-5 <br /> Pump v <br /> VEW-2 r Cn <br /> CZ <br /> Islands Q <br /> �i; ;' ; ;n� `�. _ <br /> MW-18-120 MW-18-80 ii ;� /Ood li i'� VEW- MW-19-81 p/ <br /> -13 9S , I-- Mart �� - 4MW-11 14 5 pp <br /> MW-13 1,700 Canopy ---_t'=-== MW-19-120 <br /> --- <br /> �5 ! t t ; -1451 MW-11-122 MW-11-82 Centro Mart <br /> 2© Pit Stop + MW-17 Q <br /> Former& 16 -14 53 <br /> W Product Lines Lube a <br /> Current 14 nd11 260 cR <br /> USTs -- - } Tune . 60 <br /> Former ham,-3 <br /> Texaco <br /> con MW-6Cy ' Station/ ` <br /> Chevron Station Z T '' United <br /> 508 W.Charter Way O Car Wash ;:IGasEXPLANATIONTIF-- <br /> i Mw-10 U <br /> Z ` Fence — * Groundwater mopitorrng well-Zone A <br /> r-i <br /> r� Vent Lines Remediation + Groundwater mo rtd <br /> oring well-Deeper zones Q <br /> MW-8 <br /> Enclosure Vapor extract-on <br /> 1 S� Destroyed well C <br /> Groundwater elevation contour to feet referenced to <br /> mean sea level(ft msl) Arrows indicate cc <br /> Toscono Site X approximate groundwater flow direction N <br /> 1444 Lmcoln St. O <br /> (UST case) MW-11-122_-Well designation .0 <br /> MW-14 -15.31—Groundwater elevation, ft msl L <br /> 32 Benzene concentrations to groundwater to parts per O <br /> Scale(ft) <br /> <0 50\billion(ppb) N O a <br /> cli <br /> MTBE concentrations in groundwater in ppb 0 <br /> 0 25 50 100 <br /> 1426 Lincoln St. I MW-16 1� <x Not detected at r porting limit x V _o <br /> (UST case) i a7 w <br /> NM Not measured FIGURE ti„ U U <br /> rn <br /> Approximate hydraulic gradient 0 004 30 <br /> U <br /> r U.. � cn <br />