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'ter <br /> •1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone : 925-798-1620 Fax :925-798-1622 <br /> http://www.mccampbell-co E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmentaI Client Project ID: Western Square Date Sampled: 09/07/99 <br /> 4005 North Wilson Way Industries Date Received: 09/10/99 <br /> Stockton, CA 95205 Client Contact: Robert Marty Date Extracted: 10/20-10122199 <br /> [Client P.O: Date Analyzed: 10/25/99 <br /> Chromium* <br /> EPA analytical methods 6010/200.7,239.2' <br /> Lab ID Client ID Matrix Extraction' Chromium %Recovery <br /> Surrogate <br /> 18978 SP-1-2 S STLC 1.7 NA <br /> 18979 SP-3-4 S STLC 0.41 1 NA <br /> S TTLC 0.5 mg1kg <br /> Reporting Limit unless <br /> otherwise stated;ND W TTLC 0.005 mglL <br /> means not detected above <br /> the reporting limit STLC <br /> 0-05 mg.L <br /> TCLP <br /> -water samples are reported in mg/L,soil and sludge samples in mg/kg,wipes in ug/wipe and all TCLP/STLC 1 SPLP extracts in mg'L <br /> Lead is analysed using EPA method 6010(1CP)for soils,STLC&TCLP extracts and method 239.2(AA Furnace)for water samples <br /> °EPA extraction methods 1311(TCLP),3010/3020(w•ater,TTLC),3040(organic matrices,TTLC),3050(solids,TTLC);STLC-CA Title 22 <br /> surrogate diluted out of range,N/A means surrogate not applicable to this analysis <br /> &reporting limit raised due to 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 J C1 Edward Hamilton, Lab Director <br />