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• i • <br /> Table 1 <br /> Groundwater Elevation and Analytical Data(CHEVRON) <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 Satnpled (ft,MSL) A MSL) (If TOC) (ug4) NO) NO NO NO) {ugA) <br /> DEFINITIONS <br /> Groundwater monitoring 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 /> (ugA)=Micrograms per liter (S)=Sequoia Analytical <br /> TPHg=Total petroleum hydrocarbons as gasoline (K)=Kifi Analytical <br /> MtBE=Methyl tertiary butyl ether <br /> NOTES <br /> '=Laboratory report ind+cates weathered gasoline C6-C12 <br /> 2=Laboratory report indicates gasoline C6-C12 <br /> =Laboratory report indicates unidentified hydrocarbons C6 C12 <br /> "�The result for this hydrocarbon is elevated due to the presence of single analyte <br /> peak(s)in the quantitation range <br /> 5=Laboratory report indicates weathered gasoline <br /> 5=Laboratory report indicates sample was reanalyzed on January 2 2001 MtBE did not confirm Vial did contain headspaco <br /> r.T,TPH9�w 1400 uo tddf wa ftbA dmriar dMEE <br /> =Hydrocarbons were found in the range of gasoline but do not resemble a gasoline fingerprint <br /> =Analyses by EPA Method 8260 <br /> 1 kChevron04275%Penodic Monrtonng\QMRl94275 NF xls 20 of 20 <br />