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Table 1 <br /> Groundwater Monitoring Data and Analytical Results <br /> Tosco(Circle K)Unit#08671 <br /> 8606 Thornton Road <br /> Stockton,California <br /> EXPLANATIONS <br /> } <br /> Groundwater monitoring data and laboratory analytical results prior to May 1" 1999,were compiled from reports prepared by Secor International,Inc <br /> ,,i J <br /> TOC=Top of Casing TPH-G'-Totall Petroleum Hydrocarbons as Gasoline (ppb)=Parts per billion <br /> (ftFeet B1=Ben,f zene I I --=Not Measured/Not Analyzed <br /> )= <br /> DTW=Depth to Water T=Toluene ND = Not Detected <br /> S I =Screen intervai E=EthylbenAne QA w Quality Assuranco7np Blank <br /> (ft bgs)=Feet Below Ground Surface X'=Xylenes <br /> GWE=Groundwater Elevation MTBE;Methyl tertiary butyl ether 1 <br /> (msl)=Mean sea level I f <br /> * TOC elevations are based on City of Stockton Benchmark#8 A brass disk in monument box marking the cast 114 corner of section 8 Township to North range 6 East <br /> i MTBE by EPA Method 8260 - <br /> '' Laboratory report indicates gasoline C6-C12 <br /> s Laboratory report indicates unidentified hydrocarbons C6-C12 <br /> I <br /> a Data provided by Secor International,Inc <br /> 5 TPH-G and BTEX by EPA Method 8260 <br /> I " <br /> 6 TPH-G,BTEX and MTBE by EPA Method 8260 <br /> 7 Laboratory report indicates a hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> I <br /> i i I <br /> } <br /> I i II l <br /> r I i i <br /> li I �I I I <br /> I I <br /> t <br /> I I <br /> I ` <br /> � 7 <br /> I � ! <br /> 1 li I - <br /> i ' 1 <br /> b II <br /> h <br /> I G <br /> ,li r I n <br /> i <br /> f ! } <br /> i I <br /> 08671 x0198 ik AID/]3/03 <br />