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• r <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax.925-798-1622 <br /> E-mail:main@mccampbell.cotn <br /> Advanced GeoEnvironmental Client Project ID:7Plazaco Truck Plaza Date Sampled: 08/19-08/20/99 <br /> 4005 North Wilson Way Date Received: 08/25/99 � <br /> Stockton,CA 95205 Client Contact:Bill Little Mite-Extracted—O&/25199 <br /> Client P.O: Date Analyzed: 08/25-08127199 <br /> 1, <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 EthylbenXylenes o Reco <br /> very <br /> gate <br /> 17920 MW1-15 S ND 1.5 ND NDS NIS ND 98 <br /> 17921 MWI-25 S 420,a ND<1 1.7 3.5 4.1 24 106 <br /> 17922 MW 1-30 S ND 0.32 ND ND ND ND 96 <br /> ' 17923 MW2-15 S ND ND ND ND ND ND 95 <br /> 17924 MW2-25 S ND ND ND ND NTD NTD 97 <br /> 17925 MW2-30 S NTD ND ND ND ND ND 93 <br /> 17926 MW3-15 S ND N'D ND ND ND ND 91 <br /> 17927 MW3-25 S ND ND ND ND ND ND 97 <br /> ' 17928 MW4-15 S ND N'D ND ND ND ND 92 <br /> 17929 MW4-25 S ND NTD ND ND NTD ND 99 <br /> t17930 MWS-20 S ND ND ND ND ND ND 92 <br /> 17931 MW5-25 S ND ND ND ND ND ND 109 <br /> 1 . <br /> ' Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> othcrwise 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 /> ' nater and vapor samples are reported in ug/L,wipe samples in uglwIpe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> ' "cluttered chromatogram;sample peak eoelutes 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 mange 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 /> rr <br /> DHS Certification No. 1644 ` Edward Hamilton, Lab Director <br /> 1 <br />