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i TOE 1 - <br /> WELL CONCENTRATIONS <br /> Shell Oil Products Company <br /> 6131 Pacific Avenue <br /> Stockton, California <br /> WIC#204-7525-0104 <br /> Measured Corrected Total Total Fecal <br /> Sample GW Depth GW Elev SP TPPH B T E X MTBE Lead Coliform Coliform dO dO Comments <br /> Date (MPN/ (MPN/ <br /> (ft) (ft) (ft) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 100ml) 100ml) (mg/L) Method <br /> vEW-1 I I I I I 1 I <br /> 05-Sep-96 1892 NA 000 3500 55 60 410 380 1 93 NA NA NA NA NA MTBE by 8260 91 ppb <br /> VEW-2 1 I I I I <br /> 05-Sep-96 I NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 26-Nov-96 I NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 26-Feb-97 I I NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 10-Jun-97 1 NA 1 NIA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 22-Aug-97 NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> Abbreviations, <br /> <x=Not detected at detection limit of x <br /> NA Not analyzed or not available <br /> MPN/100ml=Most Probable Number(MPN)of bacteria per one hundred milliliters <br /> (DUP)=Duplicate sample <br /> SP=Separate Phase hydrocarbon <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,xylenes by EPA Method 8020 <br /> MTBE=methyl-tertiary-butyl ether by EPA Method 8020 <br /> I <br /> Notes <br /> =Positive response for petroleum hydrocarbons as gasoline,is due to the presence of an unknown hydrocarbon,not gasoline <br /> "=Separate Phase hydrocarbon skimmer in well Measurements collected after skimmer removal <br /> Dissolved Oxygen readings given prior to well purging <br /> 97174 5 <br />