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I 29 Aug-02 <br /> EXPLANATION C (a 45 <br /> Shell groundwater monitoring well C r � <br /> Adjacent site groundwater monitoring well M N-A20B V- O+ <br /> Destroyed groundwater monitoring well I (<0.5) L <br /> Lam` �+ <br /> Groundwater elevation contour in feet referenced `-+ (<2 0) ;rte ! MW-11A 3 d <br /> C ! v <br /> to mean sea level(ft msl) Arrows indicate MW.20A -15 93l -17 17 (<0 g) <br /> = C <br /> / approximate groundwater flow direction ¢ ! (<0 5) ! 1 I 1 1 O <br /> -1253 Groundwater elevation in ft mslN1'-70 Former Chevron p <br /> (<0 50) Benzene concentration in parts per billion(ppb) — _ ( ,�1��, 1j j! Service Station --1113 <br /> i _ <br /> (<0 sQ) MTBE concentration in ppb (<0 5) E� ! (�0) <br /> <x Not detected at detection limit x C Myy-19C <br /> NA Not applicable-well screened in a deeper `i Savemart Beacon Iw j NA j O (� <br /> water-bearing zone 1!-1 A f MW-7B a ! ( - <br /> �l <br /> NS Not sampled �� t 1 NA j ►L" MW-3 (<3 0) MW 5 <br /> (<0 5) �' -17.92 �/� �f � � -16.86 a, <br /> Note Chevron wells gauged on July 29,2002 and sampled on j (<2 0) 17 2 o` V E NS <br /> July 29 and 30,2002 Arco Station MW-71 (<2 0) i 1 V1,-4MUW -1610 <br /> * Extraction wells are not used in contouring f A II (<0 51l � 517 22 <©5) <br /> -h-IN-3 _ (<2 0) -1745 (<0 5) (<2 0) W ! <br /> Approximate hydraulic gradient=0 005 to 0 010 « 24 ' `t-2B II (<0 5) 0 \111" _0 <br /> (<5 0) P+T <br /> NN 2 ' NTW-3 (<2 0) (� ) 000) ! <br /> Xnr-2 <br /> ! MW-5A MW.1� MW-13 <br /> 1733 EX-3* 1 1773 .1647 O Q <br /> (<0 5) -2535 (<0.5) (<0 5) <br /> (<2 0) (<0 5) (<2 0) J <2 0) <br /> ' l m <br /> WEST KETTLEMAN LANE (38) <br /> / Q <br /> MW-8S MW-14(EX-2)* U <br /> .., NA -1617 MW-9A / <br /> MW-6 (<0 5) (<0.5) -16.45 <br /> -s <br /> -1682 (<2 0) (26) (<0 5) MW-12A <br /> t�-7 C <br /> f"y (<0 50) (�0)� -1601 O <br /> / -8B=-16 82--1 <br /> MW-5 illi-2 moi' NA —(<0.5) — �` �<2 Q)TV, CO) <br /> U j M NN-1 (<0 5) (<2 0) ! M�NA <br /> (<O 50) � ((<20) j � ( 5)W-5 V <br /> j {<0 50} MW-9B y NA f (<<Z 0 <br /> -17.0 (<0 5) .O <br /> j I I (<2 0) V} <br /> I / <br /> M,-12� j 1 g3 S t�o� Golden Ox MW-10 V <br /> -1604 <br /> ! (<0.50) 8���°g Restaurant j (<0 5) <br /> (<Q.SO) E CL <br /> O <br /> hili_3 j MW-17B <br /> Scale(ft) +� j f NA MW-1oB C <br /> j CO <br /> - _ ti (<0.5) MW-10C . NA <br /> 0 30 sa azo .l I _ -- — j (<2 Q) <No s (<2 L � <br /> (<2 0} co <br /> I evm � <br /> j Municipal Water Well Shell-branded I FIGURE <br /> (Independent) m CO <br /> Service Station 3 d U <br /> = q -0 <br /> N � _OJ <br />