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12 May 03 <br /> C U o <br /> d N <br /> -W C <br /> OY <br /> Arco MW-1B N <br /> I co <br /> Former Arco MW-1C W W <br /> CL <br /> Harbor Sea Food Pump NM C m <br /> Store ( Islands E., M U <br /> Liquor Store Vacant Lot Former ARCO Charter Way Z •�f O <br /> 441 W.Charter Way Bait&Tackle 4W45 <br /> L <br /> Arco-8C Z r C5 <br /> Arco MW-8B I C <br /> O <br /> U <br /> WEST CHARTER WAY <br /> v <br /> c O <br /> �r <br /> MW-7 MW-4 VEW-1 MW11 VEW-3—MW-5 AM-9 V <br /> Pump + + + T <br /> o VEW-2 <br /> ' U�jd <br /> Islands <br /> MW-19-81 MW-18-80 ' I VEW- <br /> -13.84 <br /> MW-11 <br /> MW-13 anOpy MW-19-120 <br /> <0 SO c° 43 <br /> Centro Ma-13.97 Pit Stop MW-11-122 MW-11-82 + MW-17 Q <br /> Q <br /> /Former& ' 91 -1415 <br /> H Product Lines 3 9 Lube and 36 U <br /> W Current Tune ` <br /> W '-2 USTs _' Former MW-3 <0 50 <br /> E., Texaco 1 <br /> MW-6 'oil Station j tai <br /> Chevron station z �' EXPLANATION <br /> 508 W.Charter Way p Car Wash 7 <br /> Mw-10 <br /> U Groundwater monitoring well -Zone A <br /> Z - Fence — 1 <br /> 0-4 Groundwater monitoring well -Deeper zones <br /> ,.a Vent Lines + Remediation I <br /> MW-8 Enclosure + Vapor extraction!well <br /> 0 Destroyed well <br /> C <br /> Groundwater elev+ation contour in feet referenced to O <br /> _N_ mean sea level(f;msl) Arrows indicate R <br /> Toscono Site / approximate gro dwater flow direction y <br /> 1444 Lincoln St. Well designation v <br /> (UST case) I <br /> MW-11-122 Groundwater elevation,ft ms] .L <br /> MW 14 -1�Benzene concentJations in groundwater in parts per N <br /> Scale ft 32 billion(ppb) <br /> � ) <0 50 MTBE concentrations in groundwater in ppb O ca <br /> 0 25 50 100 E <br /> <x Not detected at reporting limit x X o <br /> 1426 Lincoln St. MW-16 $ <br /> (UST case) NM Not measured FIGURE i U U <br /> Arco wells gauged on Feb�uary 12,could not be used in O (D0 <br /> contouring All other wells gauged on February 11,2003 4 E <br /> OCD 0 <br /> tv IL Nr <br />