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L <br /> Table 2 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No. 548 <br /> 1612 W . Hammer Lane, Stockton , CA <br /> TOC Depth to Water Level Ethyl- FXyTlotnae)s <br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (fig/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg1l (mg/L) Comments <br /> The sample contains a lower boiling point hydrocarbon mixture quantified as gasoline; the chromatogram does not match the typical gasoline fingerprint. <br /> - Raised MRL due to high analyte concentration requiring sample dilution. <br /> [2] MTBE was analyzed using USEPA Method 8260. <br /> [3] Hydrocarbon pattern is present in the requested fuel quantitation range, but does not resemble the pattern of the requested fuel. <br /> [4] The sample was diluted due to the presence of high levels of target analytes resulting in elevated reporting limits. <br /> [5] The sample was diluted due to the presence of high levels of non-target analytes resulting in elevated reporting limits. <br /> Data Qualifier Definitions: <br /> U = The analyte was analyzed for, but was not detected above the sample reporting limit. <br /> J The analyte was positively identified; the associated numerical value is the approximate concentration of the analyte in the sample. <br /> N = The analysis indicates the presence of an analyte for which there is presumptive evidence to make a tentative identification. <br /> NJ = The analysis indicates the presence of an analyte that has been tentatively identified and the associated numerical value represents its approximate concentration. <br /> UJ = The analyte was not detected above the reported sample reporting limit. However, the reported reporting limit is approximate and may or may not represent the actual limit of quantitation <br /> necessary to accurately and precisely measure the analyte in the sample. <br /> R = The sample results are rejected due to identification or other analytical issues. <br /> ND = Not detected above reported detection limit <br /> Report Date: May 135 2004 Page 14 of 14 <br />