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110 2nd Avenue Sou #D7,Pacheco,CA 94553 <br /> -- <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> John P.Cummings&Associates Client Project ID: #03961200; Piedmont Date Sampled:07/19/96 <br /> P.O.Box 2847 Tracy <br /> Date Received:07/22/96 <br /> Fremont,CA 94536-2847 Client Contact:John Cummings Date Extracted:07/22/96 <br /> Client P.O: Date Analyzed:07/24/96 <br /> Lead <br /> EPA anal3lical methods 6010/200.7 239.2` <br /> Lab ID Client ID Matrix Extraction° Lead* %Recovery <br /> Surrogate <br /> 67141 S-1 S TTLC 15 95 <br /> 67142 S-2 S TTLC 11 95 <br /> Reporting Limit unless otherwise stated; S TTLC 3.0 mg/kg <br /> ND means not detected above the re- <br /> porting limit W TTLC 0.005 mg/L <br /> --- STLC,TCLP 0.2 mg/L <br /> *soil and sludge samples are reported in mg/kg,and water samples and all STLC do TCLP extracts in mg/L <br /> ` Lead is analysed using EPA method 6010(ICP)for soils,sludges,STLC&TCLP extracts and method 239.2(AA Furnace)for water <br /> samples <br /> °EPA extraction methods 1311(TCLP),3010/3020(water,TTLC),3040(organic matric es,TTLC),3050(solids,TTLC);STLC from CA Title <br /> 22 <br /> K surrogate diluted out of range;N/A means surrogate not applicable to this analysis <br /> &reporting limit raised due matrix interference <br /> i) liquid sample that contains greater than--2 vol. % sediment;this sediment is extracted with the liquid, in accordance with EPA <br /> methodologies and can significantly effect reported metal concentrations. <br /> DHS Certification No. 1644 Edward Hamilton,LabDirector <br />