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T�1 <br /> Groundwater Monitormgua and Analytical Results <br /> Chevron Service Station#9-9840 <br /> 4344 Waterloo Road <br /> Stockton,California <br /> EXPLANATIONS <br /> Groundwater monitoring data and laboratory analytical results prior to lune 22,2000,were compiled from reports prepared by Blame Tech Services,Inc <br /> TOC=Top of Casing TPH-G=Total Petroleum Hydrocarbons as Gasoline MTBE=Methyl tertiary butyl ether <br /> (ft)=Feet B=Benzene (ppb)=Parts per billion <br /> GWE=Groundwater Elevation T=Toluene --—Not Measured/Not Analyzed <br /> (ms])=Mean sea level E=Ethylbenzene QA=Quality Assurance/Trip Blank <br /> DTW Depth to Water X=Xylenes NP=No Purge <br /> Laboratory report indicates gasoline C6-C12+unidentified hydrocarbons C6-C12 <br /> MTBE by EPA Method 8260 <br /> 3 Laboratory report indicates gasoline C6-C12 <br /> 4 Laboratory report indicates gasoline <br /> 5 Laboratory report indicates unidentified hydrocarbons C6-C 12 <br /> 6 BTEX and MTBE by EPA Method 8260 <br /> 7 Data provided by Secor International,Inc <br /> 9-9840 xls/#386846 6 As of 01/06/04 <br />