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pacea <br /> REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> Opiames Jacobs QUALITY CONTROL DATA April 13, 1992 <br /> Page 29 PACE Project Number: 420406516 <br /> Client Reference: Exxon 7-3330 <br /> TPH-GAS/BTEX BY METHODS M-8015/8020 <br /> Batch: 70 11486 <br /> Samples: 70 0067847, 70 0067855 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL F—GEL HYDROCARBONS, (LIGHT) : - <br /> Purgeable Fuels, as Gasoline (EPA 8015) ug/kg wet 200 NO <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) : - <br /> Benzene ug/kg wet 1.0 NO <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 /> Oaeter Units MDL Value Recv Recv RPD <br /> Purgea a Fuels, as Gasoline (EPA 8015) ugug g wet 200 267 99% 97% 2% <br /> Benzene ug/kg wet 1.0 40.0 100% 100% 0% <br /> Toluene ug/kg wet 1.0 40.0 98% 99% 1% <br /> Ethylbenzene ug/kg wet 1.0 40.0 99% 100% 1% <br /> Xylenes, Total ug/kg wet 1.0 80.0 97% 99% 2% <br /> MDL Method Detection Limit <br /> RPD Relative Percent Difference <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 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 />