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Cl <br /> t R I li Ft P D R 11 T t o REPORT OF LABORATORY ANALYSIS <br /> THE ASSnRANCE OF QUALITY <br /> Ms Lisa Rainger QUALITY CONTROL DATA April 22, 1992 <br /> Page 6 PACE Project Number. 420212501 <br /> Client Reference- Exxon 7-3708 <br /> Corrosivity (pH) <br /> Batch 70 09947 <br />' Samples* 70 0021707 <br /> SAMPLE DUPLICATE <br />' 70 0021707 Duplicate <br /> MW4,5,6-10 of <br /> Parameter Units MDL Composite 70 0021707 RPD <br />' Corrosivity (pH) Units 8 4 8.4 0% <br />' LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> Corrosivity (pH) Units 7.0 100% 100% 0% <br /> MDL Method Detection Limit <br /> PO Relative Percent Difference <br /> 1 <br /> 1 <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 /> t TEL 415 883 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 />