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Superior Precision AnalyticaI, Inc: <br /> 825 Arnold Drive, Suite 1 14 Martinez, California'94553 • 1510) 229-1512 / fax (510p 229 1526 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. : 86975 DATE RECEIVED: 10/23/92 <br /> CLIENT: Kleinfelder DATE REPORTED: 10/30/92 <br /> CLIENT JOB NO. : 24-220165=D01 DATE SAMPLED : 10/22/92 l <br /> ANALYSIS FOR TOTAL LEAD <br /> by SW-846 Method 6010 <br /> LAB r Concentration(mg/kg) <br /> # Sample Identification Total Lead <br /> 1 74152 ND<5 <br /> 2 74153 5 <br /> 3 74154 ND<5 -,���t � <br /> 4 74155 f 5 ��` ``'•' <br /> 5 74156 ND<5 <br /> 6 74157 ND<5 V;;�:` w ra <br /> 1 <br /> mg/kg - partsper millioni (PPm) <br /> r.. <br /> Method Detection Limit for Lead in Soil : 5 mg/kg <br /> QAQC Summary: MS/MSD Average Recovery : 86% <br /> Duplicate RPD 4% <br /> Richard Srna, Ph.D. <br /> aboratory manager+ <br /> s <br /> 1 <br /> Certified Laboratories <br />