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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.mccatnpbell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:Elkhorn Sue-May Date Sampled: 05/31/00 <br /> 4005 North Wilson Way 2000 Date Received: 06/01/00 <br /> i <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 06/01/00 <br /> Client P.O: Date Analyzed: 06/01/00 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 6020 or 602;California RWQCB(SF Bay Region)method GCFID(5030) <br /> F._l Lab ID Client ID Matrix TPH ' MTBE Benzene Toluene Ethylben- %Recovery <br /> F;a (g) Xylenes. <br /> is a zeneSurrogate <br /> 39101 Pre-Ox Air 300,g ND ND 4.4 0.91 9.3 100 <br /> 39102 Post-Ox Air ND ND ND ND ND ND 705 <br /> <i <br /> 1 <br /> -i <br /> t <br /> -1 <br /> Reporting Limit unless i <br /> otherwise stated;NI] Air 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> ""- <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 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(?);t) l <br /> one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than water immiscible I <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 i <br />