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4. PCORPORATED REPORT OF LABORATORY ANALYSIS <br /> ` THE ASSuHANCE OF aUALITY <br /> i <br /> M <br /> Ms. Laura Odenthal QUALITY CONTROL DATA July 16, 1993 <br /> 9 <br /> Page 8 PACE Project Number- 430709532 <br /> Client Reference: 1399 E. Yosemite, Manteca/837-161 <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch: 70 22756 <br /> Samples: 70 0110289, 70 0110297, 70 0110300, 70 0110319 <br /> METHOD BLANK: <br /> Method <br /> Parameter Units MDL Blank <br /> TOTAL 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 ND <br /> Ethylbenzene ug/L 0.5 ND <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 /> orgeable Fuels, as Gasoline (EPA 8015M ug/L 50 1000 — �% M 1% <br /> nzene ug/L 0.5 40.0 101% 97% 4% <br /> Toluene ug/L 0.5 40.0 101% 99% 2% <br /> Ethylbenzene ug/L 0.5 40.0 106% 103% 2% <br /> Xylenes, Total ug/L 0.5 120 102% 98% 4% <br /> I* <br /> 11 Digital Drive <br /> Novato CA 94949 An Equal Opportunity Employer <br /> TEL 415 8836100 <br /> FAX 415 803 2673 <br />