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Tao 0 <br /> Groundwater Monitoring Data and Analytical Results <br /> Former Tosco(Unocal)Service Station#4409 <br /> 1502 N El Dorado Street <br /> Stockton,California <br /> EXPLANATIONS <br /> TOC=Top of Casing B=Benzene ppb=Parts per billion <br /> DTW=Depth to Water T=Toluene ND=Not Detected <br /> (ft)=Feet E=Ethylbenzene -=Not Measured/Not Analyzed <br /> GWE=Groundwater Elevation X=Xylenes <br /> ms]=ReIative to mean sea level MTBE=Methyl tertiary butyl ether <br /> TPH(G)=Total Petroleum Hydrocarbons as Gasoline <br /> * TOC elevations have been surveyed relative to mean sea level(ms])per the City of Stockton Benchmark No 23(Elevation= 11 14 feet ms]),NGVD 29 <br /> i MTBE by EPA Method 8260 <br /> I <br /> I <br /> 4409 xls/##180238 Z <br /> As of 07105100 <br /> I <br />