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pace. <br /> CORPORATEO REPORT OF LABORATORY ANALYSIS <br /> IHE ASSURANCE 0# QUALITY <br /> Or. Gregg Altimari QUALITY CONTROL DATA October 05, 1992 <br />' Page 5 PACE Project Number• 420928512 <br /> Client Reference: Exxon 7-3330 (EE) <br /> TPH GASOLINE/BTEX <br /> Batch: 70 15860 <br />' Samples: 70 0214084, 70 0214092, 70 0214106, 70 0214114 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TUTTE-FUEL HYDROCARBONS, (LIGHT) • - <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 ND <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020M) - <br /> Benzene ug/L 0.5 ND <br /> Toluene ug/L 0.5 NO <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 /> &arameter Units MDL Value Recv Recv RPD <br /> Purgea6l a Fuels, as Gasoline (EPA 8015M ug/L s0 427 99% 100% 1% <br /> Benzene ug/L 0 5 40.0 93% 95% 2% <br /> Toluene ug/L 0.5 40.0 98% 97% 1% <br /> Ethylbenzene ug/L 0.5 40.0 108% 106% 1% <br /> e <br /> Xylenes, Total ug/L 0.5 80.0 112% 109% 2% <br /> MDL Method Detection Limit <br /> ND Not detected at or above the MDL. <br /> RPD Relative Percent Difference <br /> 1 <br /> 0 <br /> i <br /> 1 <br /> 11 Digital Drive Offices Serving Mnnteaooks Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Flonda Asheville North Carolina <br /> TEL 415 883 6100 Iowa City Iowa New York New York <br /> FAX 415 893 2673 San Francisco California Pittsburgh,Pennsylvania <br /> Kansas City Missouri Denver Colorado <br />