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I <br /> 12-Oct-04 <br /> %) m <br /> 0 d N <br /> C6- <br /> Arco MW-1B O N <br /> -1409 i E.., (,) 1 <br /> Arco MW-1C �o 50 W L CL <br /> Harbor Sea Food Fomner <n 50 <br /> Store <br /> Pump C <br /> Islands O <br /> Liquor Store Vacant Lot Former ARCO Charter Way W ' ' <br /> 441 W Charter Way Bast&Tackle 04 MW-1s cc <br /> L <br /> 12 <br /> Arco MW-8B .144 pq 5 = <br /> -1402 ------ <br /> c0 50 L--4 <br /> Oc0 50 / � U <br /> Arco MW-8C C1 <br /> WEST CHARTER WAY <br /> / d <br /> -MW-1—VFW-e-l MW-9 <br /> -�>MW-5 <br /> Pump MW-7 Z4' VFW-1 <br /> o -19-81 <br /> Food �� VLW-4 -15 04 '� Q <br /> Islands 3 Mart �i qi' 160MW-18-120 � i� �h 250MW-li L MW-18-80 Canopy �=a: - _-4l MW-19-120 MW-11 - 11-l22 as <br /> -14 ! ! ! ; Pit Stop MW-11-82 - MW-17 Centro Mart Q <br /> 1,500 Former& , -1522 <br /> E-� Product Lines current i Lube and 170 (� <br /> w ' Former Tune 15 <br /> VIFi''2-Q- USTs � <br /> Texaco MW- <br /> Station/ W- <br /> CAI MW-6 ;y Station/ _ <br /> Chevron Station 4- <br /> ARCO EXP ANATIQN <br /> 508 W Charter Way p Car Wash '3I' -¢-MW-10 <br /> V7 ',� Fence Groundwat monitoring well -Zone A <br /> + Groundwate monitoring well-Deeper zones <br /> ,.a Vent Lines Remediation <br /> MW-8 Enclosure Vapor extr' tion well <br /> �7 Destroyed well d <br /> V <br /> Groundwatt r elevation contour in feet referenced to <br /> -N- mean sea le iel(ft msl) Arrows indscate <br /> Toscono Site <br /> approximate groundwater flow direction U) <br /> 1444 Lincoln St. j /Well designation <br /> MW-11.82 <br /> (UST case) 'p <br /> -15 93�Groundwat elevation,ft=1 <br /> 11W 14 76 Benzene co centrations in groundwater in parts per 16- <br /> Scale (ft) <br /> 19 billion(ppb -O <br /> MTBE con O concentrations m groundwater in ppb 0 O <br /> 3.1 <br /> 0 25 50 100 <x Not detect at reporting linut x K (5 w <br /> 1426 Lincoln St MW-16 NM Not measQ <br /> (UST case) FIGURE � � U V <br /> Approximate draulic gradient= 0 003 E <br /> 3 00 <br /> � <br />