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pacesREPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF DUALITY <br /> t*r0ames Jacobs QUALITY CONTROL DATA April 21, 1992 <br /> Page 19 PACE Project Number. 420413507 <br /> Client Reference Exxon 7-3330 <br /> TPH GASOLINE/BTEX <br /> Batch 70 11650 <br /> Samples 70 0077346, 70 0077354, 70 0077370, 70 0077389 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) . - <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) - <br /> Benzene ug/kg wet 1 0 ND <br /> Toluene ug/kg wet 1 0 ND <br /> Ethylbenzene ug/kg wet 1 0 ND <br /> Xylenes, Total ug/kg wet 1 0 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> meter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 349 96% 94% 2% <br /> Benzene ug/kg wet 1 0 40 0 105% 106% 0% <br /> Toluene ug/kg wet 1 0 40 0 103% 104% 0% <br /> Ethylbenzene ug/kg wet 1 0 40 0 104% 105% 0% <br /> Xylenes, Total ug/kg wet 1 0 80.0 104% 105% 0% <br /> MDL Method Detection Limit <br /> RPD Relative Percent Difference <br /> li <br /> 11 Digital Drive Offices Serving Minneapolis,Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> MIMI) CA 94949 Tampa Florida Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York New York <br /> FAX 415 883 2673 San Francisco,California Pittsburgh Pennsylvania <br /> Kansas City,Missouri Denver Colorado <br /> Los Angeles,California <br />