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I110 Second Avenue South,##D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> F4 }yip://www mccanw ell.com E-mail:main@mccampbell.com <br /> I Advanced GeoEnvironmental Client Project ID:Geweke <br /> Date Sampled: 02109-02/10/99 <br /> 4005 North Wilson Way Date Received: 02/12/99 <br /> Stockton,CA 95205 Client Contact: Kevin McKibben Date Extracted: 02/12-02/17/99 <br /> Client P_0: Date Analyzed: 02/12-02118/99 <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 Ethylben- Xylenes %Recovery <br /> Izene Surrogate <br /> 03295 P22-30 S ND ND ND ND ND ND 104 <br /> I03296 P2240 S 2000,b ND<10 ND<0.5 20 21 200 90 <br /> 03297 P2245 S 5900,b ND<10 ND<0.5 24 ND<0.5 690 92 <br /> I03298 P22-50 S ND ND ND ND ND ND 100 <br /> 03299 P22-55 S ND ND ND ND ND ND 97 <br /> I03300 P23-10 S ND ND ND ND ND ND 100 <br /> 03301 P23-20 S 440,g ND<I ND<0.05 ND<0.05 ND<0.05 2.0 92 <br /> 03302 P23-30 S ND ND 0.008 0.034 0.005 0.034 102 <br /> 03303 P23-45 S ND ND ND ND ND ND 97 <br /> 03304 P23-55 S ND ND NO ND ND ND 118 <br /> 03305 P24-15 S ND ND ND ND ND ND 97 <br /> 03306 P24-20 S ND ND ND ND ND ND 96 <br /> I03307 P24-25 S 22,b ND<0.1 ND 0.048 0.048 0.60 95 <br /> 03308 P24-35 S ND ND ND ND ND ND 95 <br /> Reporting Limit unless <br /> otherwise stated;ND W 50 u 5.0 0.5 0.5 0.5 0.5 <br /> means not detected <br /> I above the reporting F $ 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> limit <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCL.P 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 McCampbell Analytical is not responsible for their <br /> I 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 iramiscible <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 /> I <br />