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I <br /> :JJ] Superior Precision Analytical, /f7c. <br />' "25 -\rncid Drive Since I I- • Martinez California 94553 • X5101 22n 1 512 / fax 15 101 229 1 526 <br /> CERTIFICATE OF ANALYSIS <br /> 18ORA TORY NO 35361 DATE RECEIVED 03/30/92 <br /> LIENT ERM-WEST DATE REPORTED 04/06/92 <br />'IEN T jOB NC 1572 04 DATE SAMPLED 43/30/92 <br />' ANALYSIS FOR TOTAL LEAD <br /> by SW-846 Method 7421 <br />'_LAD Concentration(mg/€.g ) <br /> n Sample identification Total Lead <br /> -------------- <br /> -__ <br /> --------------------- <br />' 1 f4W1A 5 0 <br /> 2 M w 1 A 7 5 <br /> 3 MW3A 7 5 " <br /> 1 MW3A 5 <br /> 4 <br /> 5 PSS W 2 A 1 C J <br /> 6 MW2A 12 5 <br /> 7 MW4A 10 <br /> '4W4A ; 5 3 <br /> /kg - parte per million ( ppm) <br /> et:-.cd Cetec cn Limit for Lead in Soil 1 mg/kg <br /> ialycis subcontracted to Clayton Environmental <br /> y,^,CC Cummarf 1S/MSD Average Recovery ' 1 5 <br />' Dupl . cate RPD 1 <br />' Richard Srna , Ph D <br /> L(I I <br />' Laboratory Manager <br /> 1 � <br />' Certified Laboratories <br />