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x— <br /> 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax:925-798-1622 <br /> - h ://www.rnccam bell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:Flag City Chevron Date Sampled: 08/15/00 <br /> 4005 North Wilson Way Date Received: 08/16/00 <br /> Stockton,CA 95205 Client Contact:Tim Cuellar Date Extracted:08/16-08/17/00 <br /> Client P.O: Date Analyzed: 08116-08/17/00 <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 RWQCS(SF Say Region)method GCFID(5030) <br /> Lab 1D Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylben-zene %Recovery <br /> * Xylenes <br /> Baker Surrogate <br /> 45100 Tank/08-15-00 W ND 1300 ND ND ND ND 99 <br /> f <br /> F <br /> i <br /> I' <br /> + I <br /> I! 1 <br /> I , <br /> Reporting Limit unless <br /> otherwise stated;ND means W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> not detected above the <br /> reporting limit 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 SPLP exiracts <br /> in ug/L <br /> f <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 their <br />"j 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 <br /> }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)liquid sample that contains greater than—5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br /> r <br /> a <br />