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Table 1 <br /> I Groundwater Monitoring Data and Analytical Results <br /> Chevron Service Station#9-3232 <br /> 8660 Lower Sacramento 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 /> I I <br /> TOC=Top of Casing TPH-G=Total Petroleum Hydrocarbons as Gasoline MTBE=Methyl tertiary butyl ether <br /> (ft)=Feet B=Benzene (ppb)=Part-per billion <br /> GWE=Groundwater Elevation T=Toluene --=Not Measured/Not Analyzed <br /> (mel)=Mean sea level E=Ethylbenzene QA=Quality ASSurance/Trip Blank <br /> DTW=Depth to Water X=Xylenes NP=No Purge <br /> * TOC elevation-were resurveyed in April of 2002 by Morrow Surveying Elevations are based on San loaqun County Benchmark No IN-6 Brass disk <br /> in well at Thornton and Davis Roads(Benchmark Elevation= 14 43 feet) <br /> I TOC elevation changed due to well head maintenance <br /> Z MTBE by EPA Method 8260 <br /> 1 Laboratory report indicates gasoline C6-C 12 <br /> Laboratory report indicates unidentified hydrocarbons C6-Cl2 <br /> TOC has been altered <br /> Well development performed <br /> BTEX and MTBE by EPA Method 8260 <br /> " TOC was incorrectly presented as 13 73 feet in previous report GWE has been updated <br /> 9-3232 xfoC463 AS n 0169104 <br />