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,k r <br /> I N C' P p O 1 R A T E N I�URERT OF LABORATORY ANALYSIS <br /> ' r <br /> w <br /> TRE ASSURANCE OF QUALITY <br /> Mr Paul Graff QUALITY CONTROL DATA September 07, 1993 <br /> 0ge 10 PACE Project Number: 430826515 <br /> Client Reference- Exxon 7-0137 (EE) <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch 70 24188 <br /> Samples: 70 0140897, 70 0140900 <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 ND <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 /> rgea a Fuels, as Gasoline (EPA 8015M ug/L 50 1000 110% 101% 87. <br /> nzene ug/L 0 5 40 0 106% 100% 5% <br /> Toluene ug/L 0 5 40 0 106% 97% 8% <br /> Ethylbenzene ug/L 0 5 40 0 109% 93% 15% <br /> Xylenes, Total ug/L 0 5 120 113% 97% 15% <br /> 40 <br /> 11 Digital Drive An Equal Opportunity Employer <br /> Novato CA 94949 <br /> TEL 415 883 6100 <br /> FAX 415 883 2673 <br />