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1 <br /> pace� REPORT OF LABORATORY ANALYSIS <br /> 1 THE ASS UAANCt OF QUALITY <br />'0r. Jan Stepek QUALITY CONTROL DATA February 06, 1992 <br /> Page 15 PACE Project Number 420129507 <br /> Client Reference: Exxon 7-3942 <br /> TPH GASOLINE/BTEX <br /> Batch 70 09558 <br /> Samples- 70 0013577 <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 ND <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 ND <br /> Xylenes, Total ug/L 0 5 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Wrameter Units MDL Value Recv Recv RPD <br /> Purgea a Fuels, as Gasoline (EPA 8015) ug/L. 50 349 1079 95% 11% <br /> Benzene ug/L 0 5 40.0 102% 104% 1% <br /> Toluene ug/L 0 5 40 0 101% 104% 2% <br /> Ethylbenzene ug/L 0 5 40 0 103% 104% 0% <br /> Xylenes, Total ug/L 0 5 80 0 101% 103% 1% <br /> MDL Method Detection Limit <br />' RPD Relative Percent Difference <br /> i <br /> I <br /> I <br /> I <br /> I1 1 Digital Drive Offices Serving Minneapolis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Florida Asheville North Carolina <br /> TEL 415 863 6100 Iowa City Iowa Now York New York <br /> FAX 415 8133 2613 San Francisco California Pittsburgh Pennsylvania <br /> Kansas City Missouri Denver Colorado <br /> Los Angeles California <br />