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110 Second Avenue South,#137,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone. 925-798-1620 Fax :925-798-1622 <br /> httn:l/www.tnccatnnbell.cont E-mail:main@mccampbell.com <br /> • <br />' Advanced GeoEnvironmental Client Project ID: Cole Property Date Sampled:09/41/98 <br /> 4005 North Wilson Way Date Received:09/02/98 <br />' Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 09/02/98 <br /> CIient P.O: Date Analyzed: 09/02/98 <br /> Gasoline Range(C&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 GCFID(5030) <br /> Lab ID Client ID MatrixEthylben- %Recovery TPH(g)+ MTBE Benzene Toluene zene Xylenes Surrogate <br /> 94479 Pre Thor Ox Air 870,b --- ND 20 34 200 95 <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 /> *water and vapor samples are reported in ug/L,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 coclutcs with surrogate peak _. <br /> 'The 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 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 />