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x <br /> Superior Precision Ana/ytica/, /nc. <br /> ! 1555 Burke, Unit 1 • San Francisco, California 94124 - (41 S( 647-2081 /fax (4 15) 821-7123 <br /> ANALYSIS FOR TOTAL LEAD <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 15334 <br /> 4. <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (mg/Kg) (mg/Kg) <br /> TOTAL LEAD: ND<5 5 96/94 75-125 20 <br /> Definitions: <br /> ND = Not Detected <br /> RPD = Relative Percent Difference <br /> RL = Reporting Limit <br /> mg/Kg = Parts per million (ppm) rn&r emist <br /> QC File No. 15334 count Manager <br /> Page 3 of 3 <br /> Certified Laboratories <br />