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Superior PreC%S%Or7 Analytical, lr7C_ <br /> 825 Arnold Drive Suite 1 14 ■ Martinez California 94553 ■ (510) 229 1512 / fax (5 10� 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 85361 DATE RECEIVED 03/30/92 <br /> CLIENT ERM-WEST DATE REPORTED 04/06/92 <br /> CLIENT JCB NO 1572 04 DATE SAMPLED 03/30/92 <br /> ANALYSIS FOR TOTAL ORGANIC LEAD <br /> by DHS METHOD ( LUFT MANUAL) <br /> LAB <br /> # Sample Identification Concentration ( mg/kg ) <br /> --------------------- <br /> - -- ------------------�-_----- <br /> - <br /> MW1A 5 0 ND<O 5 <br /> 2 MW1A 7 5 ND<O 5 <br /> 3 MW3A 7 5 ND<0 . 5 <br /> 4 MW3A 15 ND<O 5 <br /> 5 MW2A 10 ND<O 5 <br /> 6 MW2A 13 5 ND<O 5 <br /> 7 MW44k 10 ND<O 5 <br /> 8 MW4A 15 ND<0 5 <br /> mg/kg - parts per million ( ppm) <br /> Method Detection Limit for Organic Lead in Soil 0 5 mg/kg <br /> QAQC Summary MS/MSD Average Recovery 89 % <br /> Duplicate RPD 0 <br /> Richard Srna, Ph D <br /> 1 <br /> LJ <br /> Laboratory Directo <br /> f <br /> Certified Laboratories <br />