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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//wwwmecampbellcom E-mail main@rnccampbell conn <br />' Advanced GeoEnvironmental Client Project ID Sierra Lumber Date Sampled 06/06/01 <br /> 837 Shaw Road Date Received 06/07/01 <br />' Stockton, CA 95215 Client Contact Tire Cuellar Date Extracted 06/07/01 <br /> Client P O Date Analyzed 06/07/01 <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 GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)� MTBE Benzene Toluene benzyl Xylenes %Recovery <br /> benzene Surrogate <br /> 69218 Effluent Air ND -- ND ND ND ND 100 <br />' 69219 Influent Air 1800,a --- 63 120 23 160 104 <br /> I� <br /> I <br /> Reporting Limit unless Air 50 ug/L. 50 0 5 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above �g <br /> the reporting limit S 1 0 m 005 0 005 0 005 6 005 0 005 <br /> I <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$PLP extracts <br /> in ugfL <br /> I *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 signnficant(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)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> I � <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />