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110 2nd Avenue South, =D7,Pacheco,CA 94553-5560 <br /> 14 YIDCAiMPBELL ANALYTICAL IVC. Telephone: 925-798-1620 Fax: 925-798-1622 <br /> http,//www.mccampbell.com E-mail:maint@mecampbell.com <br /> Advanced GeoEnvironmental Client Project M: Chase/Van Bruen Date Sampled: 03/13/02 <br /> 837 Shaw Road Date Received: 03/14/02 <br /> Stockton, CA 95215 Client Contact:Paul Dotson I Date Extracted: 03/14-03/15/02 <br /> Client P.O: Date Analyzed: 03/14-03/15/02 <br /> i <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent=Butyl Ether* Sc BTEX* <br /> EPA methods 5030,modified 8015,and 3020 or 602;California RWQCB(SF Bay Region)method GCFiD(5030) <br /> Lab ID ClientlD Matrix TPH(gr MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene. Surrogate <br /> 0203256 Influent Air 290,a ND 1.0 16 3.3 20 —" <br /> I <br /> Reporting Limit unless Air 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;11D <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 air samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mgikg,and all TCLP and SPLP extracts in <br /> ug(L <br /> cluttered chromatogram;sample peak coelutes with surrogate peak <br /> I <br /> "Pte 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 significam(aged <br /> gasoline?); c) lighter gasoline range compounds (the most mobile fraction) are significant: d)gasoline Lange 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 it liquid sample that contains greater than-d vol.%sediment j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />