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110 Second Avenue South,4D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone : 510-798-1620 Fax : 510-798-1622 <br /> htt :Ihtitru.mccam bell.com E-mail: mainrt7mccampbell.com <br /> i <br /> Advanced GeoEnvironmental Client Project 1D: 90185; Shockey& Date Sampled: 10/31/97 <br />' <br /> 4005 North Wilson Way Sons Date Received: 11/05/97 <br /> Stockton, CA 95205 Client Contact: Bill Little Date Extracted: 11/05-11106197 <br /> Client P.O: Date Analyzed: 11/05-11106197 <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 Bav Region)method GCF1D(5030) <br /> I Lab ID Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Etltyl Xylenes %Recovery <br /> benzene Surro ate <br /> 82612 MW-1110-31-97 W 330.b ND ND 1.1 ND 3.3 100 <br /> 1 82613 MW-2/10-31-97 W ND ND ND ND ND ND 105 <br />' 82614 MW-3110-31-97 W ND ND ND ND ND ND 105 <br /> 82615 MW-4/10-31-97 W 220,b,a,h 7.7 5.0 0.61 0.56 1.3 103 <br /> 1 <br /> M <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> Reportinog Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 I <br /> otherwise stated;ND means <br /> not detected above the S 0 <br /> reporting limit 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 ughvipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> "c€uttered chromatogram;sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in naline and McCampbell Analytical is not responsible for their <br /> 1 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 riot appear to be derived from gasoline(?);t) <br /> one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant; h) lighter than eater immiscible <br /> sheen is resent;i liquid sample that contains reater than--5 vol.%sediment:1)no recognizable attern. V <br /> DHS Certification No. 1644 /.y Edward Hamilton, Lab Director <br /> 1 <br />