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02of2 <br /> Table 1 <br /> Groundwater Monitoring Data <br /> USA Service Station No. 65 <br /> 2500 West Lodi Avenue, Lodi, California <br /> Well Top of Casing Free Depth to Groundwater <br /> Ethyl- Total MTBE MTBE <br /> Number Date Elevation ft-msl Product ftWater ft Elevation ft-ntsl TPHG Benzene Toluene benzene Xylenes USEPA 8020 USEPA 8260) <br /> 96 <br /> MW-8 12/29/98 37.64 0 37.55 0.09 740 53 3.3 27 32 85 110 <br /> 5 <br /> MW-8 03/30/99 37.64 0 36.53 1.11 530 100 5.7 26 32 0 830 <br /> 29 $5 430 460 <br /> MW-8 06128/99 37.64 0 38.84 -1.20 650 80 6 <br /> S-1 12129/98 37.31 NS NS NS NS NS NS NS NS N5 <br /> N5 <br /> S-1 03/30/99 37.31 0 36.26 1.05 14,000 1,200 <10 240 1,200 14,000 16,000 <br /> S-1 06/28/99 37.31 0 38.54 -1.23 15,000 1,200 <0.5 270 1,200 15,000. 15,000 <br /> S-2 12/29/98 37.48 NS NS NS NS NS NS NS NS NS <br /> NS <br /> 00 5,500 <br /> S-2 03/30/99 37.48 0 36.60 0.88 2,300 120 5.5 88 270 8900 510 65 Q 96 1,300 104000 11,000 <br /> S-2 06128/99 37.48 0 38.86 -1.38 <br /> Notes: <br /> Results in micrograms per liter(Ixg/L). <br /> HG=Totai petroieum hydrocarbons as gasoline. <br /> TBE=Methyl tertiary butyl ether <br /> USEPA=U.S.Environmental Protection Agency Method <br /> i <br /> ft-msl)=Elevation in feet based on mean-sea level <br /> =Less than the detection limits used by laboratory <br /> i <br /> A=Not Analyzed <br /> S=Not sampled <br /> = casing repaired in April,1998,well was not resurveyed <br /> The IT Group <br /> CPIC:IARCM VElUSA100651QTRLY10065g299 <br />