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4L , . <br /> WELL CONCENTRATIONS <br /> Shell Oil IFroducts Company <br /> 142 N.M Dorado Street <br /> Stockton, California <br /> WdC #204-7524-1509 <br /> Sample Measured I Corrected SP TPPH I B T E X MTBE d0 dO Comments <br /> Date GW Depth (ft) GW Elev (ft) (ft) (ug/L) (ug/L) ih (ug/L) (ug/L) (ug/L) (ug/L} (mg/L) Method <br /> (DUP)=Duplicate sample <br /> TPPH=Total Purgeable Petroleum Hydrocarbons carbon range C6 to C12 by EPA Method 8015 (Modified) <br /> (previously reported as Total Petroleum Hydrocarbons as Gasoline) <br /> BTEX=benzene,toluene, ethylbenzene, and xylenes by EPA Method 8020 <br /> MTBE=methyl-tertiary-butyl ether by EPA Method 8020 <br /> SP=Separate Phase hydrocarbon <br /> dO=dissolved Oxygen <br /> Notes <br /> *= MTBE could not be determined due to coelution with t-1,2-DCE <br /> (a)=MTBE could not be determined due to coeluting compounds <br /> 97369 9 <br />