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paceeREPORT OF LABORATORY ANALYSIS <br /> tAE ASSURANCE OF OUACITY <br /> Mr. Paul Graff QUALITY CONTROL DATA June 30, 1993 <br /> Page 7 PACE Project Number. 430622520 <br /> Client Reference: Exxon 7-1050 (EE) <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch, 70 22297 <br /> Samples, 70 0098866, 70 0098874, 70 0098882, 70 0098890, 70 0098904 <br />' METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) - <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 NO <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020M) - <br /> Benzene ug/L 0 5 ND <br /> Toluene ug/L 0 5 ND <br /> Ethylbenzene ug/L 0 5 ND <br />' Xylenes, Total ug/L 0 5 ND <br />' LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 1000 859 93% 80% <br /> 10Benzene ug/L 0 5 100 108% 100% 7% <br /> Toluene ug/L 0 5 100 108% 103% 4% <br /> Ethylbenzene ug/L 0 5 100 106% 102% 37- <br /> Xylenes, <br /> %Xylenes, Total ug/L 0 5 300 102% 104% 1% <br /> 1 <br /> 1 <br /> (0 <br />' 11 Digital Drive Offices Serving Muamapouus Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tamps Florida Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York New York <br /> FAX 415 883 1673 San Francisca California PMshurgh Pennsylvanta <br /> Kansas City,Missouri Oemrer Colorado <br /> Los Angeles Califom s <br />