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Table I <br /> Groundwater Monitoring Data and Analytical Results <br /> Tosco(Former BP)Service Station#11192 <br /> 1403 Country Club Boulevard <br /> Stockton,California <br /> EXPLANATIONS ' <br /> Groundwater monitoring data and laboratory analytical results pnor to November 11,2001,were complied by reports prepared by Blaine Tech Services,Inc <br /> � I <br /> TOC=Top of Casing B=Benzene -=Not Measured/Not Analyzed <br /> (ft)=Feet T=Toluene ND=Not detected <br /> DTW=Depth to Water E=Ethylbenzene - PP=Pre-purge sample <br /> GWE=Groundwater Elevation X=Xylenes D=Duplicate sample <br /> (ms))=Mean sea level MTBE=Methyl.tertiary y but l y ether QA=Quality Assurance � <br /> TPH-G=Total Petroleum Hydrocarbons as Gasoline (ppb)=Parts per billion - <br /> * TOC elevations were surveyed on September 20,2001,by Virgil Chavez Land Surveying The benchmark for the survey was a City of Stockton benchmark, <br /> I <br /> being a disk in monument box,in the intersection of Country Club Boulevard and Pershing Avenue,(Benchmark Elevation=4 71 feet,NGVD 29) <br /> ' MTBE by EPA Method 8260 <br /> z Laboratory report indicates gasoline C6-C12 <br /> Original sample bottles broken, resampled <br /> TPH-G and BTEX by EPA Method 8260 <br /> I <br /> 11192 x0288 + Alen 1102 <br /> f <br />