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• • <br /> Page 3 of 3 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former ARCO Service Station#4493 <br /> 205 N Center St,Stockton,CA <br /> Well Depth Groundwater Groundwater Ethyl- Xylenes MtBE MtBE <br /> Well Date Elevation to Water Elevation Elevation TPHg Benzene Toluene benzene (total) (8020) (8260) DO <br /> Number Sampled (ft,MSL) (ft,TQC) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (peb) (mg/L) <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline <br /> MtBE=Methyl tart-butyl ether <br /> DO=Dissolved oxygen <br /> ft=feet <br /> MSL=mean sea level <br /> TOC=top of casing <br /> ppb=parts per billion <br /> mg/L=milligrams per liter <br /> P/NP=purged/not purged <br /> '=analyzed using EPA Method 8260 <br /> <or ND=below given laboratory detection limit <br /> 8020=Analyzed by EPA Method 8020 <br /> 6260=Analyzed by EPA Method 8260 <br /> NS=Not Surveyed <br /> =not measured/analyzed or not applicable <br /> '=Sample was reanalyzed past the EPA recommended holding time <br /> 2=Hydrocarbon pattern is present in the requested fuel quantification range but does not resemble the pattern of the requested fuel <br /> 3 <br /> The surrogate recovery for this sample cannot be accurately quantified due to interference form coelutrng organic compounds present in the sample extract <br /> I <br /> Projects/ARCO/4493/Reportsrrables/gwtables4493 As <br />