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110 Second Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 510-798-1620 Fax: 510-798-1622 <br /> http://ikww.mccampbell.com E-mail: main@mccampbell.com <br /> Advanced GcoEnvironmental Client Project ID: Geweke Date Sampled: 0$128197 <br /> 1803 West March Lane, Ste A Date Received: 08/29/97 <br /> Stockton, CA 95207 Client Contact: Kevin McKibben Date Extracted: 09/02/97 <br /> Client P.O: Date Analyzed: 09/02/97 <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 RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethen en Xylenes %Recovery <br /> ze Surrogate <br /> 80298 Drum#1,#2 W ND --- ND ND ND ND 94 <br /> Reporting Limit unless W 50 u91L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above <br /> the reporting limit 3 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> *water and vapor samples are reported in ug1L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in uglL <br /> "cluttered chromatogram;sample peals 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 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(?);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 1 Edward Hamilton, Lab Director <br />