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Table • v <br /> Groundwater Monitoring Data <br /> 1995 to Present Page 6 of 6 <br /> Former 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 Casing Level Groundwater Screen TPHG Benzene Toluene Eth lbenzene X Ienes MTBE r1j Observations <br /> A =Not appheable NS=Not sampled NE=Not evaluated 0=Odor S=Sheen FP=Free product <br /> Analytical results in parts per billion <br /> Measurements in feet <br /> IIG-Total petroleum hydrocarbons as gasoline <br /> Elevation datum is mean sea level <br /> =Below detection limit for analytical methods used <br /> *=Raised method reporting limit due to high analyte concentration requiring sample dilution Sample designations <br /> **=Raised method reporting limit due to matrix interference MW-4(34) Well ID and sample depth(feet) <br /> (11=MTBE was analyzed using USEPA Method 8020 W-24 MW3R-Water sample,sample depth(feet),R=Rinsate blank <br /> LL— <br /> I ' <br /> i <br /> I <br /> F <br /> CP1E 1ARC0121681QTRLY12168Q498 XLS <br />