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{ <br /> paces <br /> REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF QUALITY <br /> PmerJames Jacobs QUALITY CONTROL DATA April 21 , 1992 <br /> Page 16 PACE Project Number 420413507 <br /> Client Reference Exxon 7-3330 <br /> Organic Lead, as Pb <br /> Batch- 70 11718 <br /> Samples 70 0077400 <br /> METHOD BLANK <br /> Method <br /> Parameter Units MDL Blank <br /> Organic Lead, as Pb mg/kg wet 0 2 ND <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Duel <br /> Parameter Units MDL Value Recv Recv RPD <br /> Organic Lead, as Pb mg g wet 0 2 5 0 108% 112% 3% <br /> MDL Method Detection Limit <br /> 06 Relative Percent Difference <br /> Do <br /> 11 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 6106 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 />