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Table 1 <br /> Groundwater Elevation and Analytical Data(CHEVRON) <br /> Chevron Service Stallon N 94275 <br /> 2905 West Benjamin Holt Drive <br /> Stockton,California <br /> Well Groundwater Depth Ethyl- Total <br /> Well Date Elevation Elevation to Water TPHg Benzene Toluene benzene Xylenes Mt6E <br /> ID Sampled Notes (ft,MSL) (ft,MSL) (ft.TOC) Ng/)) (ugR) (419/1) NO) (u9A) (9/0 <br /> 12/18/03 <br /> — — <br /> 03123104 -- -- — -- -- -- — — -- <br /> 06122/04 -- -- -- <50 <0.5 <0.5 <0.5 <0.5 <2 <br /> 09121104 -- -- -- <50 <O.5 <0.5 <0.5 <0.5 <2 <br /> 12128104 — -- <br /> DEFINITIONS: <br /> Groundwater monitoring data and laboratory anatylical results prior to June 13,2000,were compiled from reports prepared by Blaine Tech Services,Inc. <br /> (ft.)=Feet --=Not MeasuredMot Analyzed <br /> (MSL)=Mean see level (D)=Duplicate <br /> TOC=Top of casing (A)=Anomalous <br /> (ugrl)=Micrograms per Viler (S)x Sequoia Analytical <br /> TPI-Ig=Total petroleum hydrocarbons as gasoline (K)=Kitt Analytical <br /> MtBE=Methyl tertiary butyl ether <br /> NOTES: <br /> '=Laboratory report indicates weathered gasoline C6-C 12. <br /> x=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 peak(s}in the quantitation range. <br /> I <br /> a=Laboratory report indicates weathered gasodre. <br /> I <br /> e=Laboratory report indicates sample was reanalyzed on January 2,2001. Mt6F did not confirm. Vial did contain heacispace, <br /> =The TPHg result was 1400 uo which was attributed to the presence of MISE, <br /> s=Hydrocarbons were found in the range of gasoline,but do not resemble a gasoline fingerprint. <br /> s=Analysis by EPA Method 6260. <br /> 1:1Chevronl942751Periodic MonitoringkO M R194275_OMR.xIs 11 of 11 <br />