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r <br /> SPR-1 ®PR-1 <br /> .� (ND) .ti (ND) <br /> ? ? ? ? ? <br /> O C <br /> alio�� <br /> :^ ff 4000ppb) <br /> BENJ AMM HOLT <br /> BHD-2 <br /> -'51�EY+�L r •�--� E-97'. -10 E-9 <br /> (1940ppb) 11940ppb) <br /> CANOPY l D p <br /> �Od Np 'v No <br /> d p dd 1 <br /> PUMP ISLANDS ` O O O <br /> NORTH <br /> ARCO E-s CO E-5 <br /> y <br /> E-12 STATION (5850ppb = <br /> 2133 / AT1C?N (5850ppb SCALE IN FEET <br /> $3 <br /> R E-8 E•-8 LEGEND 0 10 20 3040 <br /> E-6 ---i 16pppb ® 160ppb <br /> 6 <br /> EMCON GROUNDWATER MONITORING WELL = <br /> y E-3 �.�i E-3 �E-3 <br /> LOCATION AND NUMBER <br /> ? -j 7 ® RECOVERY WELL y' <br /> 40.E-11 ? �� 5 <br /> BROWN AND CALDWELL GROUNDWATER <br /> E-7 E-7 ® LOCATION AND NUMBER f <br /> pERGROUNE) NITOflWG WELL <br /> TANKS _ ? ` 2�• ks.aROUND E-2 <br /> PR-1 MO <br /> _ SCS 7 <br /> T ~— T BENZENE: CONTOUR LINE, MAY 2, 1988 <br /> PUBLIC UTILITIES EASEMENT <br /> CONTOUR INTERVAL -2000 PARTS PER BILLION(ppb), <br /> DASHED WHERE UNCERTAIN ' <br /> (160 ppb)BENZENE CONCENTRATION OF MAY 2, 1988 <br /> l o PR--2 ` <br /> PR-2 GROUNDWATER SAMPLES <br /> ` (ND} <br /> (ND) <br /> I <br /> (ND) NON DETECTABLE f <br /> Figure 1. Benzene Concentrations <br /> May 2, 1988 <br />