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1• <br /> paceREPORT OF LABORATORY ANALYSIS <br /> THE ASSUR AVCE OF QUALITY <br /> Mr. Jim Brownell QUALITY CONTROL DATA April 15, 1993 <br /> Page 6 PACE Project Number: 430407517 <br /> Client Reference: Exxon 7-3330 (EE) <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch: 70 20259 <br /> Samples: 70 0043298, 70 0043301 , 70 0043310, 70 0043328 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL L HYDROCARBONS, (LIGHT) : <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 NO <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020M) - <br /> Benzene ug/L 0.5 NO <br /> Toluene ug/L 0.5 NO <br /> Ethylbenzene ug/L 0.5 NO <br /> Xylenes, Total ug/L 0.5 NO <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Purgeable Fuels, as Gasoline (EPA 8015M ug/L 50 1000 881.7 86% 2% <br /> Benzene ug/L 0.5 40.0 100% 103% 2% <br /> Toluene ug/L 0.5 40.0 96% 97% 1% <br /> Ethylbenzene ug/L 0.5 40.0 101% 102% 0% <br /> Xylenes, Total ug/L 0.5 120 102% 103% 0% <br /> 11 Digital Orive An Equal Opportunity Employer <br /> Novato. CA 94949 <br /> TEL: 415-883-6100 <br /> FAX: 415.883-2673 <br />