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• J <br /> Page 5 of 5 <br /> Table i <br /> Groundwater Elevation and Analytical Data <br /> Former ARCO Service Station#4932 <br /> 16 E Harding Way,Stockton,CA <br /> R Well Depth Groundwater LPH groundwater Ethyl Xylenes MtBE <br /> { Well Date Elevation to VHater 6evatron Thickness Elevation TPHg Benzene Toluene benzene (total) (802018260) DO <br /> !Number Sampled- (tt.MS{_) (ft,TOG) (ft MS(= (ft) Chane(ft) (ppb) (pPb) (ppb) (ppb) (ppb) (ppb) (mg1L) ' <br /> Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline ppb=parts per billion <br /> MtBE=Methyl tertiary butyl ether mg/L=milligrams per liter <br /> DO=Dissolved oxygen P/NP a purged/not purged <br /> LPH=liquid phase hydrocarbon 8020=analyzed by EPA Method 8020 <br /> It=feet 8260=analyzed by EPA Method 8260 <br /> MSL=mean sea level <=below given laboratory detection limit <br /> TOC=top of casing NS=not surveyed <br /> =analyzed using EPA Method 8260 <br /> " =Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> `=groundwater elevation corrected by adding 0 77 X product thickness <br /> Z=Discrete peak®C6 C7 <br /> a=This sample was analyzed beyond the EPA recommended holding time The results may still be useful for their intended purpose <br /> °=The concentration indicated for this analyte is an estimated value above the calibration range of the instrument <br /> 5=Gasoline CB C10 <br /> $=Discrete peak 0 C5 C6 <br /> =not measured or analyzed <br /> Project/ARCO/4932/ReportsfFables/gwtabies4932 <br />