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_ 08 Jul 03 <br /> _ a <br /> L <br /> Sidewalk r 5 Q CC (aN <br /> v <br /> EXPLANATION •E <br /> Shallow Zone Groundwater Monitoring Well m <br /> ----------------_ -------------------------- ° <br /> Deeper Zone Groundwater L n C <br /> Monitoring Well 0 O O <br /> Groundwater elevation contour C O C <br /> in feet referenced to mean sea N V V <br /> level (ft msl) Arrows indicate <br /> approximate groundwater flow O <br /> ---------------------------------------- direction <br /> EAST FREMONT STREET S_4 Well designation N <br /> S-1 _j3_39 Groundwater elevation,ft ms] <br /> -30.32 <0 50 Benzene concentrations in <br /> _ _ <br /> 1,30 0 57 ground-water in parts per billion(ppb)<5001 _ MTBE concentrations in ground- <br /> ® i Planter water In ppb <br /> 5-1-$5 * i ® � <X Not detected at reporting limit x <br /> i <br /> Appr ximate hydraulic gradient=0 0006 <br /> Canopy <br /> (typ) USTs ` <br /> 33,i�^\\� Q <br /> "Former USTs <br /> /034S-4-83 <br /> Waste Oil Tanks �i (<0,50) <br /> Q <br /> (<5 O) <br /> + S-3-84C) <br /> ® 0 ® I C) <br /> i <br /> SS_3 a\ i o � I' <br /> -3034 33 I <br /> .30 Station Building and <br /> (<O50) Lube Bays ----- -------------" ffK� <br /> (<5 0) <br /> H <br /> Dispenser Island <br /> (typ) <br /> a <br /> _30:29 S_2 , C <br /> O <br /> +-3028 <br /> <O 50) <br /> <5 0) {q <br /> RINCON STET v_ <br /> N •-� _ <br /> 7 <br /> d N <br /> N N <br /> 3d) G <br /> J C o <br /> Scale(ft) I � Ca <br /> Ci <br /> 0 i FIGURE w <br /> 15 30 60 <br /> 2 � _� <br /> r � o <br /> n N N (n <br /> 0 <br /> _ y W.. y .sad.••.- — _ r <br />