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acee <br /> l N C O R P O R A 7 E D REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> ks. Jacqueline Doub QUALITY CONTROL DATA January 30, 1992 <br /> Page 7 PACE Project Number: 420121507 <br /> Client Reference: Exxon 7-0137 <br /> TPH GASOLINE/BTEX <br /> Batch: 70 09371 <br /> Samples: 70 0007585, 70 0007593, 70 0007607, 70 0007615 <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 /> IEthylbenzene 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 /> arameter Units MDL Value Recv Recv RPD <br /> urg�ea6Te Fuels, as Gasoline (EPA 8015) ug/L W0 349 112% 93% 18% <br /> Benzene ug/L 0.5 40.0 102% 97% 5% <br /> Toluene ug/L 0.5 40.0 102% 97% 5% <br /> Ethylbenzene ug/L 0.5 40.0 101% 96% 5% <br /> Xylenes, Total ug/L 0.5 80.0 101% 96% 5% <br /> MDL Method Detection Limit <br /> RPD Relative Percent Difference <br /> 6 <br /> 11 Digital Drive Offices Serving Minneapolis Minnesota Charlotte,North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Florida Asheville North Carolina <br /> TEL 415 883 6100 Iowa City,Iowa Naw York New York <br /> FAX 415 883 2673 San Francisco California Pittsburgh Permylvania <br /> Kansas City Missoun Denver Colorado <br /> Los Angeles California <br />