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ry � <br /> 110 2nd Avenue South,#ED7,Pacheco,CA 94553-5560 <br /> McCAWBELL ANALYTICAL INC. Telephone.925-798-1620 Fax:925-798-1622 <br /> b1W.//www.mccai=bel1.com E-mail: main@mccampbell.com <br /> Advanced GeoEnviromnental Client Project ID: Weldon Church Date Sampled: 05/24/99 <br /> 4005 North Wilson Way Date Received: 05/26/99 <br /> Stockton,CA 95205 Client Contact:Nuel Henderson Date Extracted: 05/26/99 <br /> Client P.O: Date Analyzed: 05/26/99 <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 /> 11912 MW-2 W ND ND ND ND ND ND 105 <br /> 05/24/99 <br /> 11913 MW-7 W ND ND ND ND ND ND 105 <br /> 05/24/99 <br /> 11914 MW-3 W ND ND ND ND ND ND 105 <br /> 05/24/99 <br /> 11915 MW-5 W ND ND ND ND ND ND 105 <br /> 05/24/99 <br /> 1I916 MW-6-U W ND ND ND ND ND ND 104 <br /> 05/24/99 <br /> 11917 MW-6-L W ND ND ND ND ND ND 105 <br /> 05/24/99 <br /> 11918 MW-I W I 0001 ND<10 190 80 27 84 105 <br /> 05/24/99 <br /> 11919 MW-4 W 1200,a N0<30 61 9.5 68 74 109 <br /> 05/24/99 <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 uglwipe,soil and sludge samples in mglkg,and all TCLP and SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram;sample peak coclutes 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 Edward Hamilton,Lab Director <br />