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li <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' h2p//www mccamobell cam E-mail main@mccampbell corn <br />' Advanced GeoEnvtronmentai Client Project ID Sierra Lumber Date Sampled 02/21/02 <br /> 837 Shaw Road Date Received 02/22/02 <br />' Stockton, CA 952I5 Client Contact Tim Cuellar Date Extracted 02/22/02 <br /> CItent P O Date Analyzed 02/22/02 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*& BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602,California RW 13 SF Bay Region)method GCF11335030 <br />' Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethyl- xylenes %Recovery <br /> benzene Surrogate <br /> 91108 Influent Aar 310,a ND ND 3 3 2 7 36 118 <br /> I91109 Effluent Air ND ND ND ND ND ND 101 <br /> I <br /> f <br /> fi <br /> f <br /> f <br /> f <br /> fReporting Limit unless Air 50 ug/j- 50 05 0 5 0 5 0 5 <br /> otherwise stated ND <br /> means not detected above S t 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> f the reporting limit <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 /> f "L luttered chromatogram,sample peak coclutes with surmate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> Interpretation al unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasolinel), 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(7),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 Ii uid sample that contains greater than-5 vol %sediment no recognizable pattern <br /> f <br /> DHS Certification No IW Edward Hamilton, Lab Director <br /> I <br />