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�► i <br /> Table 2 <br /> Groundwater Elevation Analytical Data <br /> Chevron Service Station#9-4275 <br /> 2905 Benjamin Holt Drive <br /> Stockton,California <br /> Well Groundwater Depth Ethyl- Xylenes <br /> Well Date Elevation Elevation to Water TPHg Benzene Toluene benzene (total) MtBE <br /> ID Sampled (ft,MSL) A MSL) (ft TOC) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> EXPLANATIONS <br /> Groundwater monitonng data and laboratory analytical results pnor to June 13,2000,were compiled from reports prepared by Blaine Tech Services,Inc <br /> (ft)=Feet -=Not Measured/Not Analyzed <br /> (MSL)=Mean sea level (D)=Duplicate <br /> TOC=Top of casing (A)=Anomalous <br /> (ppb)=Parts per billion (S)=Sequoia Analytical <br /> TPHg=Total petroleum hydrocarbons as gasoline (K)=Kiff Analytical <br /> MtBE=Methyl tertiary butyl ether <br /> 1 =Laboratory report indicates weathered gasoline C6-C12 <br /> 2=Laboratory report indicates gasoline C6-C12 <br /> 3=Laboratory report indicates unidentified hydrocarbons G6-C`12 <br /> 4=The result for this hydrocarbon is elevated due to the presence of single analyte peak(s)in the quantitation range <br /> 5=Laboratory report indicates weathered gasoline <br /> 8=Laboratory report indicates sample was reanalyzed on January 2,2001 MtBE did not confirm Vial did contain headspace <br /> 7=The TPHg result was 1400 ppb which was attributed to the presence of MtBE <br /> 8=Hydrocarbons were found in the range of gasoline,but do not resemble a gasoline fingerprint <br /> 9=Analysis by EPA Method 8260 <br /> 17 <br /> Chevron194275UMR194275 NF <br />