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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> C� bttn://www.mccampbell.com E-mail: main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Geweke Date Sampled: 03/17/99 <br /> 4005 North Wilson Way Date Received: 03/19/99 <br /> IStockton, CA 95205 Client Contact: Kevin McKibben Date Extracted: 03119-03/23/99 <br /> Client P.O: Date Analyzed: 03/19-03123199 <br /> Gasoline Range(C6-Cl2) 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 /> Ethylben- %Recovery <br /> Lab ID Client ID Matrix TPH(g)} MTBE Benzene Toluene zene Xylenes Surrogate <br /> 05359 MW-1 W 400,j ND ND 0.94 ND 0.91 114 <br /> 05360 MW-2 W 200j ND ND ND ND 0.60 107 <br /> 05361 MW-3 W 92,b ND ND ND ND ND 105 <br />' 05362 MW-4 W 6600,a 11 9.0 1.5 21 46 119 <br /> 05363 MW-5 W 93,j ND ND 0.61 ND ND 105 <br />' 05364 MW-6 W ND ND ND ND ND ND 100 <br /> 05365 MW-7 W ND ND ND 0.70 ND 2.2 109 <br /> lie05366 MW-8 W 2400,a ND 3.1 ND 84 62 107 <br /> 05367 MW-9 W 640,a ND 2.1 0.77 ND 34 89 <br /> 05368 MW-10 W ND ND ND ND ND ND 98 <br /> 05369 MW-lI W ND ND ND 0.69 ND 1.5 105 <br /> 05370 MW-12 W I10,a ND 0.82 9.0 5.3 25 103 <br /> 05371 MW-13 W 130,a ND 0.71 8.9 5.3 25 104 <br /> 05372 MW-14 W 170,a ND 2.0 6.5 2.1 46 102 <br />' 05373 EW-1 W ND ND ND ND ND ND 100 <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 mglkg 0.05 1 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 /> a cluttered chromatogram;sample peak coclutes with surrogate peak <br /> `The following descriptions of the TPi3 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)TPM pattern that does not appear to be derived from gasoline(?);f) <br /> I 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 />