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Superior Precision Ana/VVCa1 /nc. <br /> 825 Arnold Drive Suite 1 14 • Martinez California 94553 • (5 10) 229-1512 /fax (510) 229-1526 <br /> ANALYSIS FOR TOTAL LEAD <br /> Quality Assurance and Control Data - Soil <br /> Laboratory Number 15038 <br /> Method Spike <br /> Compound Blank RL Recovery Limits RPD <br /> (mg/Kg) (mg/Kg) (%) (%) (%) <br /> TOTAL LEAD ND<S 5 97/102 75-125 5%; <br /> 1 <br /> Definitions <br /> ND = Not Detected <br /> RPD = Relative Percent Difference <br /> RL = `Reporting Limit <br /> mg/Kg = Parts per million (ppm) Senior Chemist <br /> QC File No 25038 Account Manager <br /> Page 3 of 3 <br /> Certified Laboratories <br />