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110 Second Avenue South,##D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone :510-798-1620 Fax :510-798-1622 <br /> . hitp://www.mcgan phe i.com E-mail: main@mccampbell,com <br /> Advanced GeoEnvironmental Client Project ID:Cole Startup Date Sampled: 02/25/98 <br /> 4005 North Wilson Way Date Received: 02/26/98 <br /> Stockton, CA 95205 Client Contact: Bill Little Date Extracted: 02/26/98 <br />' Client P.O: Date Analyzed: 02/26/98 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether*& BTEX* <br />' EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)` MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br />' 86130 Post Thor OX Air 170,a ND Ll 17 3.6 20 99 <br /> 86131 Pre Thor OX Air 2600,a ND 4.0 250 53 310 107 <br /> 1 <br /> lie <br /> 1 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND means <br /> not detected above the <br /> reporting limit S 1.0 mglkg 0.05 0.005 0.005 0.005 0.005 <br /> s water and vapor samples are reported in ug/L,wipe samples in ughvipe,sail 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 /> 1 "The following descriptions of the TPH chromatogram are cursory in nature and 11,1'amphell 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) gasoiine range compounds having broad <br /> chromatographic peaks are significant;biologically altered gasoline?;e)TPH pattern that does not appear to be derived from gasoline(?);1) <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.1%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 /W Edward Hamilton,Lab Director <br />