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APR-27-2000 12 50 CAMBRIA 510 420 5178 P 04/07 <br /> CAMBRIA <br /> • Table 1 -Groundwater Extraction System Analytical Results- Shell-banded Service Station <br /> 341 East Main Street,Ripon <br /> Sample Meter MTBE TBA Ethanol <br /> Date Reading TPHg Benzene EPA 8260 EPA 8260 EPA 8260 <br /> allons 4 Concentrations to b <br /> influent <br /> 03/10100 0 <50 <0 5 24,900 <10,000 <50000 <br /> 03/13/00 1,100 69* 6 34,000 <50 X200 <br /> 03/15/00 16,905 <50 <0 5 18,000 <50 <200 <br /> 03/31/00 17,500 NA <100 44,800 <40000 <00000 <br /> 04/05/00 34,300 <51000 <50 22,700 <10000 <50000 <br /> 04/07/00 51,700 <5,000 <50 18,100 <10000 {50000 <br /> After First 1,000-lbs Carbon Filter Vessel <br /> 03/10/00 0 <50 <0$ <1 <20 <100 <br /> 03/13/00 1,100 <50 <0 5 91 <50 <200 <br /> 03/15/00 16,905 <50 <0 5 56 <50 <200 <br /> 03/31100 17,500 NA <0 5 122 <20 <100 <br /> 04/05/00 34,300 <50 <0 5 0 779 <20 <100 <br /> 04/07/00 51,700 <50 <0 5 <05 <20 <100 <br /> After Second 1,000-lbs Carbon ]Filter Vessel <br /> 03/10/00 0 NA NA NA NA NA <br /> 03/13/00 1,100 <50 <0 5 <1 <50 <Z00 <br /> 03/15/00 16,905 <50 <0 5 <1 <50 <200 <br /> 03/31/00 17,500 NA <0 5 <05 <50 <100 <br /> 04/05/00 34,300 <30 <0 5 <0 5 <50 <100 <br /> 04107/00 51,700 <50 <0 5** <0 5 <50 <100 <br /> Effluent <br /> 03/10100 0 <50 <0 5 <1 QO <100 <br /> 03/13/00 1,100 <50 <0 5 < <50 <200 <br /> 03/15/00 16,905 <50 <0 5 <1 <50 <200 <br /> 03!31/00 17,500 NA <0 5 <05 <50 <100 <br /> 04/02/00 17,500 <50 <0 5 <05 <50 <100 <br /> 04/05/00 34,300 <50 <0 5 <0 5 <50 <100 <br /> 04/07/00 51,700 <50 <0 5 <05 <50 <100 <br /> Abbreviatmone- Nota <br /> MTBE=Methyl tertiary butyl ether <a W Below deteotion limit of a ppb <br /> TBA=tertiary Butyl Alcohol "-laboratory noted that the result docs not match <br /> DiPY=DI-Isopropyl ether n typical gasoline pattern <br /> . ppb-Parts per billion - - -_� ""=laboratory detected toluene at 0 5 ppb by 9015M/8020K <br /> and at 0 60 ppb when Yenl;ed by 8260 <br />