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110 Second Avenue South,##D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax .925-798-1622 <br /> ht ://www—mccamp, ell.cp E-mail: main@mceampbell.com <br /> ' Advanced GeoEnvironmental Client Project ID: Shodley& Sons Date Sampled: 12/01/98 <br /> 4005 North Wilson Way Trucking Date Received: 12/02/98 <br /> ' Stockton,CA 95205 Client Contact: Bill Little Date Extracted: 12/02/98 <br /> Client P.O: Date Analyzed: 12/02/98 <br /> Gasoline Range(C6-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 GCF1D(5030) <br /> lben- <br /> Lab 1D Client ID Matrix TPH{g}+ MTBE Benzene Toluene EthyXylenes %Recovery <br /> zene Surrogate <br /> 99488 MW2/ W ND --- ND ND ND ND 94 <br /> 12-1-98 <br /> 99489 MW3/ W ND --- ND ND ND ND 105 <br /> 12-1-98 <br /> 1 <br /> 1 <br /> Reporting Limit unless W 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 /> 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)TPM pattern that does not appear to be derived from gasoline(?);fj <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 />