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Table 1 <br /> Groundwater Monitoring Data 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 June 22,2000,were compiled from reports prepared by Blaine Tech Services,Inc.- <br /> TOC <br /> nc: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 /> (msl)—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 /> Laboratory report indicates gasoline. <br /> 5 Laboratory report indicates unidentified hydrocarbons C6-C12. <br /> 6 BTEX and MTBE by EPA Method 8260. <br /> 7 Data provided by Secor International,Inc. <br /> 9-9840.x~,86846 Al" A2/03 <br />