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27 Apr-04 <br /> L V O <br /> O 4) N <br /> C O °' <br /> Arco MW-1B <br /> ' O N W <br /> Former E" V <br /> Arco MW-1C W L � <br /> Harbor Sea Food Pump -1389 iL <br /> Islands E-1c <br /> Store <0 5 <br /> <0 5 Z C <br /> Liquor Store Vacant Lot Former ARCO Charter Way O <br /> 441 W.Charter Way t Bait&Tackle -� h7Z '-15 7 cc <br /> OL <br /> Arco Mw-8B I z a � <br /> Arco MW-8C (� <br /> -1413 O <br /> <0 5 �� <br /> 068 V <br /> WEST CHARTER WAY -jr-\ <br /> t <br /> � t.3 <br /> 11 d!-7 <br /> NIW-4 ti�E��-f� r1�4t'-1 W-9 <br /> Pump 7 <br /> 0 `LW-2 A <br /> "ctj a� <br /> till <br /> Islands STI,W-4 Q <br /> Islands hfti�-1K 80 ' h" <br /> MW-18-120 ;�� �� Food y X11 -19-81 tY <br /> -1400 a --- I'- Mar` i---4 d h(Ll I i1L1-11-82 co <br /> h141-1i 110 r' ---- '= �- T--- MW-19-120 <br /> <0 50 Cano ; t d -1458 i41V4-17�� MW-11-122 Centro Mart <br /> PY - Q <br /> Former& ' 14 Pit Stop -1361 <br /> F* Product Lines 15 V <br /> Current ' 1 5 Lube and <br /> �] ''il!'V-2-0- USTs Former ` Tune <050 <br /> CM -r__- - 141 4-3 I <br /> E., '` Texaco <br /> Station/ <br /> Chevron Station Z -0- "' <br /> a , , United EXPLANATION <br /> 50$W Charter Way Car Wash '� Gas -NINN-10 <br /> U <br /> Z - j Fence Groundwater mLrtormg well-Zone A � <br /> ,.a Vent Lines - - Reniediation Groundwater monitoring well-Deeper zones <br /> N1 ,.8 Enclosure 4 Vapor extractio well <br /> 0 Destroyed well <br /> ' Groundwater elevation contour in feet referenced to C <br /> -"N- / mean sea level( t msl) Arrows indicate cc <br /> Toscono Site / approximate grcundwater flow direction <br /> 1444 Lincoln St. <br /> �- (UST case) j MW-11-122--Well designatio v <br /> A1W-14 -15 31 Groundwater el vation, ft msl .> <br /> 32 Benzene concen ations in groundwater in parts per N <br /> Scale(ft) <0 50 billion(ppb) O <br /> \MTBE concentr tions in groundwater in ppb V Ca <br /> 0 25 50 100 <br /> <x Not detected at eporting limit x D c`o <br /> 1426 Lincoln St. M%V-16 d W .� <br /> NM Not measured ~ U U <br /> (UST case) FIGURE L } <br /> cA <br /> Approximate hydrau is gradient=0 003 to 0 012 o <br /> 4 E <br /> O C) o <br /> r LL � in <br />