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' 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> MCCA.MPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> h //wca bell <br /> : ww.mc .cotp E-mail:main@mccampbell.com <br /> I' <br /> Date Sampled: 08/24/99 <br /> Advanced GeoEnvironmental Client Project ID: Weldon Church <br /> Date Received: 08/26/99 <br /> 4005 North Wilson Way <br /> IStockton,CA 95205 Client Contact:Nuel Henderson Date Extracted: 08126-09/01/99 <br /> Client P.O: Date Analyzed: 08126-09/01/99 <br /> Gasoline Range(C6-02)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 Bthylben- Xylenes %Recovery <br /> zene Surrogate <br /> 18011 MW1 W 390,a ND 94 23 9.5 20 105 <br /> 18012 MW2 W ND ND ND ND ND ND 102 <br /> 18013 MW3 W ND ND ND ND ND ND 105 <br /> 18014 MW4 W 1700,a ND<17 56 11 89 89 105 <br /> 18015 MW5 W ND ND ND ND ND ND 105 <br />' 18016 MW6U W ND ND ND ND ND ND 105 <br /> 18017 Mw6L W ND ND ND ND ND ND 103 <br /> 18018 MW7 W ND ND ND ND ND ND 105 <br /> I <br /> I 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 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 TPH chromatogram are cursory in nature and 1vlcCampbell 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 /> I 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?;c)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 />