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• �E� S T <br /> WELL CONCENTRATIONS <br /> Shell Oil Products Company <br /> 6131 Pacific Avenue <br /> Stockton,California <br /> WIC#204-7525-4104 <br /> Measured Corrected Total Total Fecal <br /> Sample GW Depth GW Bev SP TPPH B T E X MTBE Lead Coliform Coliform Methanol dO dO Comments <br /> Date (MPNI (MPN/ <br /> (n) (ft) (ft) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 100ml) 100m1) (ug/L) (mg/L) Method <br /> MW-5 Top casing elevation (ft) 1 0 25 <br /> 10-Oct-97 4153 5872 000 1 1300 91 33 30 65 12 NA NA NA <1000 NA NA Oxygenate Compounds by 8260 ND <br /> Oxygenate Compounds by 8260 ND except <br /> 6.ID-Feb-98 3748 6277 000 1000 100 64 <5 0 29 <25 NA NA NA <1000 NA NA MTBE 110 ppb <br /> MW-6 I ITopcasing elevation (ft) 1110116 <br /> 10 OCS 97 4228 5888 0 00 31000 1800 2700 i 20 3000 <100 NA NA NA <2000 NA NA I Oxygenate Compounds by 8260 ND <br /> 10-Feb-98 3869 62 47 0 00 54000 6400 9500 250 7300 1000 NA I NA NA 1 <5000 NA___j NA I Oxygenate Compounds by 8260 ND <br /> MW-6(DUP) <br /> 10-Feb-98 I I NA I NA I NA 1 63000 1 7000 J 110001 270 1 8600 1 1200 1 NA I NA I NA I <5000j_ NA NA <br /> MW-7 Tap casing elevation (ft) 9 89 <br /> 10-Oct-97 4220 5769 000 3000 280 26 1 <2 5 130 1 19 1 NA I NA NA I <1000 I NA I NA I Oxygenate Compounds by 8260 ND <br /> 10-Feb-98 3755 6234 000 67000 7900 130001 1200 1 7300 1 940 1 NA I NA I NA I <1000 I NA I NA I Oxygenate Compounds by 8260 ND <br /> VEW-1 <br /> 05-Sep-96 1892 NA 000 3500 55 60 410 380 93 NA NA NA NA NA NA I MTBE by 8260 91 ppb <br /> VEW-2 <br /> 05-Sep-96 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 26-Nov-96 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 26-Feb-97 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 10-Jun-97 NA NA NA 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 NA Well Dry <br /> 09 Oct-97 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Well Dry <br /> 10-Feb-98 4-3801 NA 000 120000 4500 1 20000 1800 1 26000 .410001 NA NA NA <5000 NA NA Oxygenate Compounds by 8260 ND <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 /> $P=Separate Phase hydrocarbon <br /> 240 0854 5 <br /> y <br />