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P1Cl cem <br /> N <br /> I t R Fi P O R A T E U REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> Ms Lisa Rainger QUALITY CONTROL DATA April 22, 1992 <br /> Page 11 PACE Project Number- 420212501 <br /> Client Reference Exxon 7--3708 <br /> PURGEABLE FUELS AND AROMATICS <br /> Batch: 70 09984 <br /> Samples- 70 0021585, 70 0021693 <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 /> Ethylbenzene ug/L 0 5 ND <br /> IXylenes, 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 /> Purgeable Fuels, as Gasoline (EPA 8015) ug/L ' 50 349 112% 105% No <br /> Benzene ug/L 0 5 40 0 102% 97% 5% <br /> Toluene ug/L 0.5 40 0 102% 98% 4% <br /> Ethylbenzene ug/L 0 5 40 0 101% 98% 3% <br /> Xylenes, Total ug/L 0 5 80 0 103% 98% 4% <br /> 1 <br /> MDL Method Detection Limit <br />' RPD Relative Percent Difference <br /> e <br /> 1 <br /> 11 Oigital OFIVe Offices Serving Minneapolis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa Florida Asheville North Carolina <br />' TEL 415 B83 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 />