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c <br /> '1 AI;IO � <br /> r <br /> WELL CONCENTRATIONS <br /> Shell Oil Products Company <br /> 2575 Country Club Boulevard <br /> Stockton, California <br /> WIC#204-7524-3505 <br /> Sample Measured,Corrected SP TPPH B T E X MTBE Comments <br /> GW GW Elev <br /> Date Depth (ft) (ft) (ft) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> Abbreviations <br /> NA= Not analyzed or not available <br /> (DUP) = Duplicate sample <br /> ax= Not detected at detection limit of x <br /> TPPH=Total Purgeable Petroleum Hydrocarbons carbon range C6 to C12 by EPA Method 8015 (Modified) <br /> (previously 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 /> Notes <br /> a= Depth to groundwater measurement and reference elevation datum is top of boot(adapted for vapor extraction) at well head <br /> b= Depth to groundwater measurement and reference elevation datum is notched/marked on top north side of well casing <br /> Elevation referenced to mean sea level If measurable product was noted, elevation corrected using hydrocarbon specific gravity of 0 8 <br /> 1 <br /> 97371 5 <br />