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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax: -510-798-1622 <br /> i Advanced GeoEnvironmental,Inc. Client Project ID:Geweke Date Sampled:07/17/96 <br /> 1803 West March Lane, Suite A Date Received: 07/18/96 <br />' Stockton, CA 95207 Client Contact: Kevin McKibben Date Extracted: 07118-07/20/96 <br /> Client P.O: Date Analyzed: 07/18-07/20/96 <br />' Gasoline Range(C&C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602;California RW CB SF Ba Re ion method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben-' Xylenes %Rec.zene Surrogate <br /> 67022 MW-14/7-17-96 W 3500,a 33 110 24 370 100 <br />' 67023 EW-1/7-17-96 W ND ND ND ND ND 100 <br /> Reporting Limit unless other- W 50 ug/L 0.5 0.5 0.5 0.5 <br /> Noise stated;ND means not de- <br /> tected above the reporting limit S 1.0 mg/kg 0.005 0.005 0.005 0.005 <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram; sample peak coelutes with surrogate peak <br />' + The following descriptions of the TPH chromatogram are curs o in nature and McCampbell Analytical is not <br /> responsible for their interpretation:a) unmodified or weakly modWed gasoline is sigi ficant;b) heavier gasoline <br /> range compounds are significant(aged gasoline?);c)lightergasoline range compounds(the most mobile fraction) <br /> are si, scant• d) soline range compounds having broad chromatographic peaks are significant; biologically <br /> altered gasoline?;eITPH pattern that does not appear to be derived from gasoline (?); f) one to a few isolated <br /> ' peaks present;g)strong aged gasoline or diesel ran a compounds are significant;h)lighter than water immiscible <br /> sheen 1s present; i) liquid sample that contains greafer than_ 5 vol. % sediment;j) no recognizable pattern. <br /> DH S Certification No. 1644 /� Edward Hamilton,Lab Director <br />