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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.mccampbell.com E-mail:main@mccanapbell.com <br /> Advanced GeoEnvironmental Client Project ID:Elkhorn Date Sampled: 10/20/00 <br /> 4005 North Wilson Way Date Received: 10/20/00 <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 10/20/00 <br /> Client P.O: Date Analyzed: 10/20/00 <br /> -i <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tort-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCFID(5030) <br /> + Ethylben- %Recovery <br /> 1 Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene zone Xylenes Surrogate <br /> 51019 SVE Air 730,b,j ND ND 16 11 80 113 <br /> 'i <br /> -- '-1 <br /> y <br /> '--, <br /> i <br /> Reporting Limit unless Air 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 /> I <br /> *water and vapor samples are reported in ugg,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 /> �Mc following descriptions of the TPH chromatogram are cursory in nature and McCampbcll 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 />