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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> Mr-CAMPBELL ANALYTICAL INC. Telephone .925-798-1620 Fax:925-798-1622 <br /> httu://www.mccampbell_com E-mail: main@mccampbell.com <br /> ' Advanced GeoEnvironrnental Client Project ID:Hess&Dubios Date Sampled: 05/02/01 <br /> 837 Shaw Road Date Received. 05/03/01 <br /> ' Stockton,CA 95215 Client Contact:Bill Little Date Extracted: 05103-05/04101 <br /> Client P.O: Date Analyzed:05/03-05/04/01 <br /> ' Stoddard Solvent Range(C9-02)Volatile Hydrocarbons as Stoddard Solvent*,with BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(ss)+ Benzene Toluene Ethyl-' Xylenes %Recovery benzene Surrogate <br /> 66698 M0201/ W ND ND ND ND ND n <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L 0.5 0.5 0.5 0.5 <br /> otherwise stated;NIS means <br /> not detected above the <br /> reporting limit S 1.0 mg/kg 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(?);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 Jr Edward Hamilton,Lab Director <br /> 1 <br />