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I110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> b1W.//www.mccamnbell.com E-mail mam@mccampbell com <br /> Advanced GeoEnviromnental Client Project ID Sierra Lumber Date Sampled 07/16/99 <br /> 4005 North Wilson Way Date Received 07/17/99 <br /> Stockton,CA 95205 Client Contact Tun Cuellar Date Extracted 07/17/99 <br /> Client P O Date Analyzed 07/17/99 <br /> IGasoline Range(C6-Cl2)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br />' <br /> Lab ID Client ID Matrix TPH(g)+ Ethylben- %Recovery <br /> zene MTBE Benzene Toluene Xylenes Surrogate <br /> 15514 Baker Tank W 96,000,a ND<1000 5600 13,000 1800 10,000 107 <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 005 0 005 0 005 0 005 0 005 <br />' the reporting lima mg/kg <br /> "water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/l g,and all TCLP and SPLP extracts <br /> in ug/L <br />' "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> "The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for the r <br />' interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline?), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline'?,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)hquilt StTnple that contains greater than�S vol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 d--( Edward Hamilton, Lab Director <br /> I <br />