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l <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> htty://www.rnceampbell.com E-mail: main@mccampbell.com <br /> IAdvanced GeoEnvironmental Client Project ID:Geweke Date Sampled; 12/15/00 <br /> 4005 North Wilson Way Date Received: 12/20/00 <br /> Stockton, CA 95205 Client Contact: Brian Millman Date Extracted: 12/20-12/27/00 <br /> IClient P.O: Date Analyzed: 12/20-12127100 <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 CB SF Bay Region)method GCFIQ 5030 <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 56437 MW6/ W ND ND ND ND ND ND 99 <br />' 121500 <br /> 56438 MW7/ W 90,b ND ND 1.1 ND ND 101 <br /> 121500 <br /> 56439 MW8/ W 2700,a ND 4.2 7.3 t00 180 105 <br />' 121500 <br /> 56440 MW9/ W 1300,a ND 2.1 7.8 56 24 101 <br /> 121500 <br />' 5644 t MW 11/ W ND ND ND ND ND ND 102 <br /> 121500 <br /> 56442 MW12/ W ND ND ND ND ND ND 101 <br /> 121500 <br /> 56443 MW14/ W 2900,a ND 210 1t0 61 510 99 <br /> 121500 <br /> 1 ' <br /> I <br />' Reporting Limit unless W 50 ug(L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above <br /> the 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 mglkg,and all TCLP and SPLP extracts <br /> in ug1L <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 />' 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 resent;i)liquid sample that contains greater than--5 vol.%sediment;' no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />