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30-Jan-03 <br /> EXPLANATION C o <br /> O � <br /> Shell groundwater monitoring well a.+ <br /> Adjacent site groundwater monitoring well MW-20S O 0 y <br /> �-% V ,, E Destroyed groundwater monitoring well (<0 5) y- M a) <br /> s Fuel dispenser number MW-11A d <br /> m <br /> Groundwater elevation contour in feet referenced ( 1 j~ — NA � v <br /> to mean sea level(ft sl) Arrows indicate ! MW-2UA 1 h (<0 S) C <br /> approximate groundwater flow direction ( j l NA (<0 5)f O <br /> ! �r, 1 f V <br /> -1253 Groundwater elevation in ft rust (<O 5) Former Chevron O T W (<05) � Service Station <br /> ,wni-11 7 (� <br /> (<0 50) Benzene concentration m Mw-11 M <br /> .parts per billion(ppb) — — — `f Z � <br /> NAI <br /> (<0 50) MTBE concentration in ppb j (<05) .E <br /> MW-19 <br /> <x Not detected at reporting limit x <>ii-9 _C7 f Beacon W I NA <br /> NA Not applicable-wells gauged on 29-Oct-2002 ii_1 1 Savemari W <0 5)` <br /> j MW-7B 4 1 <br /> ii-11 2) <br />� (<0 5/<0 5,01-Aug-02) Benzene/MTBE concentrations r NAI +x MW-3 MW-4(<0 5) � NAI �� /SNA � <br /> in ppb,date sampled j !i0 5) C (<O 5) '1`-2(<0 5010 6,30-Apr-02) z <br /> Arco Station MW-7A 0'�F 4 MW-2 <br /> * <br /> Extraction welts are not used m contouring � F-1 <br /> MW-5B NA CO <br /> 1 B <br /> NAI MW_6 NA IN, _ 3 EX-1 f <br /> Approximate hydraulic gradient=0 003 �,-3 <br /> i4-2A o -0- W-2B {<0 5) NA f (<0 5) NA (<0 5) W f <br /> __ a <br /> j (<0.5} ( 0 5) (<3) {<0 5) <br /> IN-2 MW-3 XPA-2 (<0 5) _ (5,400) f <br /> _ <br /> MW-5A — E -3J SMW_1 <br /> — -13 f <br /> NA NA-- NA NA O Q <br /> (<0 5) (<0 5) (<0.5) (<0 5) Con <br /> WEST KETTLEMAN LANE — <br /> (<0 5) (21) (0 S) (<0 S) � <br /> MW-8S MW-14(EX-2)* <br /> Q <br /> Mw-6 t> <br /> -1669 (<O 5) (< $) MW-9A <br /> NA <br /> ii`-8 50) (<0 S) (10) (<0 5} MW-12A C <br /> MW-8A (<0 5) NA O <br /> MW-5 — — — W-813----NA —, — — — — — — — _ — (<0 5) +� <br /> _{ <br /> 1664 _, NA —`(<0 51<0 5,01-Aug-02) -{<0 5)— _ *W+ <br /> (<0 50) (<0.5) MW 12B CO <br /> <0 50 ® ® ( ) I NA <br /> ii-50 1 ( ) O © <0 5 1 I MW-9B I (NA <0 5) V <br /> (a o i j I (<0 5) 1 ai <br /> N- _ 1 f ( ) CO <br /> 1 ® MW-4 I ! <br /> ii-11 + gtam,°n� J <br /> Golden Ox 1 <br /> Restaurant MW-10A I <br /> 8 Bu>>a� nt j NA 0 <br /> -1670 (<0 51<0 5,29-Jul-02) + IZ <br /> (<0 50) I <br /> t I <br /> Scale(ft) r� <0 50) MW-3 MW-17B <br /> j + NA MW-10B C <br /> NA � U <br /> 0 30 60 120 0l� — y — — — — -- 1 I (<0 5) M NAOC-�<0.5) L <br /> CO <br /> 1W-4 j (�0 5) (<0 S) I — E <br /> I (40 S) C A8 Ca <br /> j Municipal Water Well Shell-branded f I FIGURE � Y o` <br /> (Independent) I <br /> Service Station <br /> + o -6 <br /> Nq0 <br />