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3Wui--03 <br /> g � <br /> ® Sidewalk <br /> EKMANATUON <br /> ® Soil Boring Location g: Q <br /> ------ -------------------------- .. --.„_,.,,.-- Groundwater Monitoring Well <br /> s� <br /> Deep Zone Groundwater <br /> Monitoring Well EL <br /> 'Estimated extent of benzene in shallow <br /> ]EAS, , ]F'R EMONT STREET �1� groundwater Concentration in parts per � 63 <br /> billion(ppb) @5 <br /> ———————————————— <br /> a0.50 ,Benzene concentration in shallow <br /> groundwater Concentration in ppb to e <br /> E <br /> � g <br /> Estimated extent of benzene in deep <br /> groundwater Concentration in parts per <br /> IV —0 Y— /' 1 ____t__, \ billion(ppb) <br /> Planter Benzene concentration in deep <br /> �, ® // fm ❑ ,1 ,,��-6 0.54 <br /> groundwater Concentration in ppb <br /> E S-1-8 - S-1 pie Not detected at a reporting limit of x <br /> S i^� 53 1� 1,300 L <br /> X I Note Data used on this map is from the May 2003 <br /> Groundwater Flow Direction i i 1� ' USTs <br /> in the shallow groundwater zone �` i��;� groundwater sampling event <br /> 3Q98 through 2Q03 ti i-1��� �� I �� Canopy 100 and 1,000 ppb concentration lines not drawn as they <br /> Historical(shallow)groundwater gradient ranges from �� Former USTs X 1L i �� (tyP) occur too close to S-1 to depict at this scale <br /> Q <br /> I <br /> 3 0 0002 to 0 005,with the average being 0 0015 \ \ ^�� i i ® -�IC50 <br /> '13-L m <br /> 5.4-83 <br /> 0 ' 0.54 Q <br /> Waste Oil Q\\ U <br /> S-3� 5-3-$4 Tank <br /> O <br /> < ' W <br /> \ i � <br /> ------------ ----- <br /> A4 � <br /> Dispenser Island <br /> Station Building and (typ) <br /> \ Lube Bays ' Sl3-z3 <br /> \ fTT�4 <br /> \ 1 <br /> 1 <br /> SR-i; ® I <br /> S-2 <br /> tiLl i_ 1 I O <br /> X0.50 <br /> N I .m <br /> U) <br /> � N <br /> DoE <br /> I E <br /> Scale(ft) 16- LL io <br /> � FIGURE N � <br /> 0 15 30 600 <br /> 7T) <br /> ca � <br /> , w <br /> � � U) <br /> f <br />