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1 <br /> Groundwater Monitoring Data Page 5 of 5 - <br /> ARCO Service Station No 2168, 441 Charter Way, Stockton, California <br /> well Elevation Static Elevation Top <br /> Sample of Top Water of of Total <br /> Number Date of Casm i Level Groundwater Screen TPHG Benzene Toluene Eth lbenzene Xylenes MTBE Observations <br /> NA =Not applicable NS=Not sampled NE=Not evaluated O=Obvious product S=Sheen FP=Free product <br /> Analytical results in pans per billion <br /> Measurements in feet <br /> HG=Total petroleum h}drocarbons as gasoline <br /> Elevation datum is mean sea level <br /> <=Below detection limit foranalyttcal methods used <br /> '=Raised method mportmg[unit due to high analyte concentration requiring sample dilution <br /> **=Raised method reporting limit due to maim interference <br /> Sample ations <br /> MW 4(34)-Well ID and sample depth(feet) <br /> W 24-AtW3R 1N ater sample sample dh(fiat) R=Rtnsate blank <br /> 1 <br /> N VCL.WSO U 460MI2097R 1 XLS <br /> Revision 2 1R0197 <br />