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110 2nd Avenue South,##D7,Pacheco,CA 9455 3-55 60 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http_//www mccamUbell corn E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 01/10/2002 <br /> 837 Shaw Road Date Received 01/11/2002 <br /> IStockton, CA 95215 Client Contact Tun Cuellar Date Extracted 01/11/2002 <br /> Client P O Date Analyzed 01/11/2002 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 88125 Influent Air 310,b,1 ND ND 42 3 7 56 94 <br /> 88126 Effluent Air ND ND ND ND ND 17 100 <br /> t <br /> I <br /> I <br /> Reporting Linnt unless Air 50 ug/L 5 0 0 5 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limitS 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SDLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak welutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are srgnificant(aged <br /> I gasoline7), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoltne7,e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant, h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />