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Table 2 Page 5 of 5 <br /> Fuel Oxygenates Analytical Data <br /> ARCO Service Station#4932 <br /> 16 E Harding Way Stockton CA <br /> �- Well "y°Dete 9,aTBA w Mx$E Y, DIPE ,�'ELBE` _ - TAME '1,2-0Cq r ' EDB --Ethanol-, <br /> r, _ye — +r <br /> t Number"- ti�SaFnpfed _ ��{ppb) t�w��-(PPb)' .�;'.`_(ppb)` s (ppb) (Ppb) (Ppb) h _ �ppb) <br /> -{ppb)'. <br /> EW 1 04/11/02 <25 000 520 000 <2 500 <2 500 <2 500 <2 500 <2 500 <br /> 07112102 2 800 460 000 150 <100 260 -- - - <br /> 11/20/02 Not sampled LPH sheen present <br /> 01/30/03 <100000 200 000 <2 500 <2 500 <2 500 <2 500 <2 500 <200 000 <br /> 04/28/03 Well unable to be sampled connected to remedial system <br /> 07/29/03 <20 000 97 000 <500 <500 <500 <500 <500 <100 000 <br /> 10!09103 <10 000 25 000 <250 <250 <250 <250 <250 <50 000 <br /> 01113/04 <10,000 17,000 <500 <500 <500 -9250 <250 <50 000 <br /> EW-2 07/12/02 <10000 65000 <1000 <1000 <1000 - - - <br /> 11/20/02 3 600 90000, <50 <50 120 <50 <50 - <br /> 01/30103 <4 000 61 000 <100 <100 <100 <100 <100 <8 000 <br /> 04/28/03 <20 000 55 000 <500 <500 <500 <500 <500 <100 000 <br /> 07/29103 <20 000 50 000 <500 <500 <500 <500 <500 <100 000 <br /> 10109103 <20 000 23 000 <500 <500 <500 <500 <500 <100 000 <br /> 01113104 <40,000 38,000 <2000 <2000 -92000 <1000 <1000 <200,000 <br /> EW-3 01113/04 <40 39 Q 0 Q 0 Q 0 <1 0 <1 0 <200 <br /> EW-4 01113104 .0 00,000 96,000 <5,000 <5,000 <5,000 <2,500 c2,500 <500,000 <br /> EW-5 01113/04 •11000 1,300 <50 <50 <50 Q5 Q5 <5 000 <br /> EW-6 11/20/02 <200 280 <5 0 <50 <5 0 13 <5 0 - <br /> 01/30103 <4 000 600 <100 <100 <100 <100 <100 <8 000 <br /> 04/28103 Well unable to be sampled connected to remedial system <br /> 07129/03 <400 1 000 <10 <10 <10 <10 <10 <2 000 <br /> 10109/03 Insufficient amount of water in well for sample collection <br /> 01113/04 Insufficient amount of water in well for sample collection <br /> EW-7 01/13104 <20 260 4.2 <1 0 <1 0 76 <0 50 <100 <br /> QCTB 07/28/03 <20 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <100 <br /> 10/09/03 - - -- -- - - - -- <br /> Notes Et6E=Ethyl tertiary butyl ether EDB=Ethylene dibromide <br /> TSA=Tertiary butyl alcohol TAME=Tertiary amyl methyl ether ppb=parts per billion <br /> MtBE=Methyl tertiary butyl ether 1 2-0CA=1,2-Dechloroethane LPH=liquid phase hydrocarbons <br /> DIPE=Dr-rsopropyi ether <=less than given laboratory detection limit -=not analyzed <br /> '=The concentration indicated for this analyte is an estimated value above the calibration range of the instrument <br /> =Results were reported with a possible high bias due to the continuing calibration verification failing outside acceptance criteria <br /> ProlectlARCO/49321Reportslrables/iQ04 gwtables4932 <br />