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' 1 110 2nd Avenue South,#137,Pacheco CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax: 925-798-1622 <br /> httQ//www.mccgmpbell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Strong Prop. Date Sampled: 01/11/02 <br /> 837 Shaw Road Date Received: 01/15/02 <br />' Stockton, CA 95215 Client Contact:Brian Millman Date Extracted: 01/16-01/17/02 <br /> Client P.O: Date Analyzed: 01/16-01/17/02 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BT1X* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCFTD(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 11- <br /> 88232 B8 1-022 0 W 71,b ND ND ND 1.2 1.3 96 <br />' 88233 8910/01 <br /> 1]-1-02 W 88,b ND ND 0.62 0.72 4.3 95 <br /> 1 <br /> lie <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 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 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 /> I <br />