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i <br /> Table 1 Ei <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 Ethyl- Total MTBE MTBE <br /> Number Date Elevation(ft-msi) Product(ft) Water(ft) Elevation(ft-msi) TPHG Benzene Toluene benzene Xylenes USEPA(8020) USEPA(8260) <br /> I <br /> MW-1 12/29/98 36.99 0 36.61 0.38 <50 <05 <0.5 <05 <05 <3 NA <br /> MW-2 12/29/98 3753 NS NS NS NS NS NS NS NS NS NS <br /> I <br /> MW-3 12/29/98 37.80 0 37.85 -0.05 56 <05 <03 0.7 2.8 6 8 <br /> MW-4 12/29/98 37.46 0 37.69 -0.23 32,000 92 40 1,000 5,700 <150 NA <br /> MW-5 12/29/98 36.83 0 37.20 -0.37 <50 <03 <05 <05 <05 <3 NA <br /> MW-6 12/29/98 38.06 0 38.66 -0.6 <50 <05 <0.5 <05 0.82 <3 NA <br /> MW-7 12/29/98 37.88 0 38.79 -0.91 <50 <0.5 <0.5 <0S <05 <3 NA <br /> MW-8 12/29/98 37.64 0 3755 0.09 740 53 3.3 27 14 96 110 <br /> S-1 12/29/98 3731* NS NS NS NS NS NS NS NS NS NS <br /> S-2 12/29/98 37.48 NS NS NS NS NS NS NS NS NS NS <br /> ates: <br /> Results in micrograms per liter{µgni). (ft-msl)=Elevation in feet based on mean-sea level <br /> HG=Total petroleum hydrocarbons as gasoline. <=Less than the detection limits used by laboratory <br /> MTBE=Methyl tertiary butyl ether NS=Not sampled, NA=Not Analyzed <br /> SEPA=U.S.Environmental Protection Agency Method = casing repaired in April,1998,well was not resurveyed <br /> I <br /> W C1S:IUSA100651QTALY10065 Q498 XLSluh:lj <br /> i � � <br />