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110 2nd Avenue South, #D7,Pacheco, CA 94553-5560 <br /> McCAMPBELL ANALYTICAL. INC Telephone 925-798-1620 Fax 925-798-1622 <br />' 24 ht //www mccam bell com E-mail main@mccampbell com <br />' Advanced GeoEnvtronmental Chent Project ID Sierra Lumber Date Sampled 11/01/01 <br /> 837 Shaw Road Date Received 11/01/01 <br />' Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 11/07-11/08/01 <br /> Client P 4 Date Analyzed 11/07-11/09/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl Cert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl Xvlenes % Recovery <br /> benzene Surrogate <br /> 82817 MWI/ W 1200,a ND 31 20 68 50 107 <br /> 110101 <br />' 82818 MW2/ W 46,000,a ND<200 180 400 1600 7800 104 <br /> 110101 <br /> 82819 MW4r1/ W 30,000,a 1,D<200 190 520 1100 4100 103 <br /> 110101 <br />' 82820 MW4B/ W 45,000,a ND<200 4000 1500 2100 5600 106 <br /> 110101 <br /> 82821 MW6/ W 130,1 ND SID 2 6 ND ND 108 <br /> llalol <br /> 1 <br /> I <br /> 1 <br /> 1 Reporting Limit unless W 50 ug/L 5 0 O S 0 5 0 5 U 5 <br /> otherwise stated ND <br /> means not detected above <br />' the reporting limn S 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 SPL?extracts <br /> in ug/L <br />' a 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 their <br /> interpretation a) unmodified or weakly modified gasoline is significant b) heavier gasoline range compounds are bigmficant(aged <br />' gasolme9), e) 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 he derived from gaboime(?),t) <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,j)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />