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• s <br /> Table 1 <br /> Groundwater Monitoring Data and Analytical Results <br /> Fortner Unocal Service Station#2859 <br /> 1665 Pacific Avenue <br /> Stockton,California <br /> EXPLANATIONS. <br /> Groundwater monitoring data and laboratory analytical results prior to March 6, 1998,were compiled from reports prepared by MPDS Services,Inc <br /> TOC —Top of Casing elevation B =Benzene ppb=Parts per billion <br /> DTV = Depth to Water T=Toluene ND =Not Detected <br /> (ft) —Feet E = Elbylbenzene -- = Not Measured/Not Analyzed <br /> GWE=Groundwater Elevation X =Xylenes D = Duplicate <br /> msl —Relative to mean sea level MTBE =Methyl tertiary butyl ether EB W Equipment Blank <br /> TPH(G) -Total Petroleum Hydrocarbons as Gasoline <br /> ' TOC elevations have been surveyed relative to mean sea level <br /> i Laboratory report indicates the hydrocarbons detected appeared to be a gasoline and non-gasoline mixture <br /> 2 Laboratory report indicates the hydrocarbons detected did not appear to be gasoline <br /> 2 Detection limit raised Refer to analytical results <br /> MTBE by EPA Method 8260 <br /> s Laboratory report indicates unidentified hydrocarbons C6-C12 <br /> Laboratory report indicates gasoline and unidentified hydrocarbons >C8 <br /> 7 Well development only <br /> ANALYTICAL.h1EITIOD <br /> EPA Method 8015 for TPH(G) <br /> EPA Method 8020 for BTEX and MTBE except where noted <br /> EPA Method 8260 for MTBE where noted <br /> I <br /> I <br /> i <br />