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0 <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> ARCO Service Station No 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Elevation Static Water Groundwater Ethyl- Total <br /> Well Top of Casing Tog of Screen Level Elevation TPHg Benzene Toluene benzene Xylene MtBE <br /> Number Date (feet msl) (ft btc) (ft btc) (feet msl) mg/L mg/L mg/L mg/L - ,mg/L mg/L Observations <br /> The sample contains discrete non-fuel components eluting in the gasoline range,quantified as gasoline <br /> The chromatogram does not match the typical gasoline fingerprint <br /> (1)=Not sampled,as well is scheduled to be abandoned <br /> [2] MtBE was analyzed using USEPA Method 82608 <br /> [3]Chromatogram Pattern Weathered Gasoline C6 C12 <br /> [4]Benzene toluene, ethylbenzene and total xylenes were analyzed using USEPA Method 8260B <br /> (5]Chromatogram Pattern Unidentified Hydrocarbons C6-C12 <br /> [6] Hydrocarbon pattern is present in the requested quantitation range but does not resemble the pattern of the requested fuel <br /> Analytical data validation presented in text beginning third quarter 2002 <br /> k U5 BP ARC01213MQuarterlyl3_QTR 021Arco_2130_3QMR02 <br /> 11 of 11 <br />