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i <br /> PI ,ace, REPORT OF LABORATORY ANALYSIS <br />' THE ASSURANCE OF QUALITY <br /> 1 . Jan Stepek QUALITY CONTROL DATA February 06, 1992 <br /> Page 17 PACE Project Number 420129507 <br /> Client Reference: Exxon 7-3942 <br /> TPH GASOLINE/BTEX <br /> Batch- 70 09589 <br />' Samples 70 0013445, 70 0013453, 70 0013470, 70 0013534 <br /> METHOD BLANK <br />' Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) : - <br />' Purgeable Fuels, as Gasoline (EPA 8015) ug/L 50 NO <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) <br /> Benzene ug/L 0 5 ND <br /> Toluene ug/L 0 5 ND <br /> Ethylbenzene ug/L 0.5 NO <br /> Xylenes, Total ug/L 0 5 NO <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE- <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Purgea a Fuels, as Gasoline (EPA 8015) ug/L 50 349 112% 107% 47. <br />' Benzene ug/L 0 5 40.0 101% 100% 0% <br /> Toluene ug/L 0 5 40.0 102% 100% 1% <br /> Ethylbenzene ug/L 0 5 40 0 102% 99% 2% <br /> Xylenes, Total ug/L 0 5 80 0 101% 99% 2% <br /> MDL Method Detection Limit <br />' RPD Relative Percent Difference <br /> I <br /> I <br /> 11 D+gdal Drive Offices Serving Minneapolis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novara CA 94949 Tampa Florida Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York New York <br /> I FAX 415 883 2673 San Francisco California Pittsburgh Pennsylvania <br /> Kansas City Missouri Denver Colorado <br /> Fos Angeles California <br />