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1 ' <br /> 3 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell corn E-mail main@mccampbell com <br />' Advanced GeoEnvirotunental Client Project ID Chase Chevrolet— Date Sampled 12/21/99 <br /> 4005 North Wilson Way Van Buren Date Received 12/22/99 <br />' <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 12/22/99 <br />' Client P 0 Date Analyzed 12/22/99 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab TD Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zen a Surrogate <br />' 28041 Inlet/12-21-99 Air 1400,a ND<20 17 120 19 110 108 <br /> 28042 Discharge/12- Air ND ND ND 36 1 l 84 101 <br /> 21-99 <br /> I <br /> 10 <br /> Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br />' otherwise stated ND means <br /> not detected abo,,a the <br /> reporting limit S 1 0 mg/kg 005 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 rnglkg,and ail TCLP and SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak coelutes 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)hquid sample that contains greater than--5 vol %sediment j)no recognizable pattern <br /> DHS Certification No 1644 J4�__Edward Hamilton, Lab Director <br />