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1 <br /> l >y o A P o r e c1cals. REPORT OF LABORATORY ANALYSIS <br /> TH£ ASSURANCE OF aUA LI TY <br /> Ms. Lisa Rainger QUALITY CONTROL DATA April 22, 1992 <br /> Page 10 PACE Project Number: 420212501 <br /> Client Reference- Exxon 1-3708 <br /> ' Sulfides, Reactive <br /> Batch 70 09960 <br /> ' Samples 70 0021707 <br /> ' METHOD BLANK AND SAMPLE DUPLICATE <br /> 70 0021707 Duplicate <br /> Method MW4,5,6-10 of <br /> Parameter Units MDL Blank Composite 70 0021707 RPD <br /> ' Su Hides, Reactive mg/kg 1 0 ND ND ND NC <br />' LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> ' Sulfides, Reactive mg/kg 1 0 960 48% 56% 15% <br /> MDL Method Detection Limit <br /> PO Relative Percent Difference <br /> C No calculation due to value below detection limit <br /> 1 <br /> 1 <br /> I t 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 8e3 6100 Iowa City Iowa New York New York <br /> FAX 415 883 2673 San Francisco California Prttshurgh Pennsylvania <br /> Kansas City,Missouri Dearer Colorado <br /> Las Angeles California <br />