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pace. <br /> REPORT OF LABORATORY ANALYSIS <br />' THE ASSURANCE OF OUAtITY <br /> • Doug Oram QUALITY CONTROL DATA August 21 , 1992 <br />' Page 16 PACE Project Number 420814512 <br /> Client Reference Exxon 7-3942 (EE) <br />' TPH GASOLINE/BTEX/MTBE <br /> Batch 70 14972 <br />' Samples 70 0195691 , 70 0195713 <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 /> tEthylbenzene ug/L 0 5 NO <br /> Xylenes, Total ug/L 0 5 ND <br /> Methyl tert--butyl ether ug/L 5 0 ND <br /> ®rameter <br /> ORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl Units MDL Value Recv Recv RPD <br /> Purgeab a Fuels, as Gasoline (EPA 8015) ug/L 50 428 937. 91% 2% <br /> Benzene ug/L 0.5 40 99% 95% 4% <br /> Toluene ug/L 0 5 40 102% 97% 5% <br /> Ethylbenzene ug/L 0 5 40 104% 98% 5% <br />'Xylenes, Total ug/L 0.5 80 103% 100% 2% <br /> Methyl tert-butyl ether ug/L 5 0 40 106% 107% 0% <br /> MDL Method Detection Limit <br /> RPD Relative Percent Difference <br /> 1 I 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 6108 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 />