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1 <br /> 110 2nd Avenue South,#D7, Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-7984620 Fax 925-798-1622 <br /> http//wwwmccqmpbel1com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID ChaseN B Date Sampled 09/07/00 <br />' 4005 North Wilson Way Date Received 09/08/00 <br /> Stockton, CA 95205 Client Contact Paul Dotson Date Exacted 09/08/00 <br />' Client P O Date Analyzed 09/08/00 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* & BTEX* <br />' EPA methods 5030 modified 8015 and 8020 or 602 Callfomla RW B SF Bay Region)method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- xylenes %Recovery <br /> zene Surro ate <br />' 47023 Inlet Air 200,a ND 072 34 080 25 105 <br /> 47024 Outlet Air 68,b ND ND 074 ND 98 101 <br /> 1 <br /> 1 <br /> I <br /> Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> I means not detected above <br /> the reporting limit S 1 0 mg/kg 005 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 SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> `The following descriptions of the TP11 chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> I 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(?),0 <br /> one to a few isolated peaks present, g)strongly aged gasoline or diesel range compounds are significant, h) lighter than water immiscibie <br /> sheen is present i)liquid sam to that contains greater than--5 vol %sediment no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />