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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAUTBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax:925-798-1622 <br /> 14 http://www.rnccgMpbell.com E-mail: train@mccampbell.com <br /> 1' 1 <br /> Advanced GeoEnvironmental Client Project ID:Hess DuBios <br /> Date Sampled: 08/30/01 <br /> ' 837 Shaw Road Date Received: 09/05/01 <br /> ' Stockton, CA 95215 Client Contact:Bill Little Date Extracted: 09106-09/07/01 <br /> Client P.O: Date Analyzed: 09106-09107101 <br /> ' Stoddard Solvent Range(C9-C12)Volatile Hydrocarbons as Stoddard Solvent*,with MTBE*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(ss)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> ' benzene Surrogate <br /> 76961 TePtump 1 W 1200,e 0.53 9.2 5.1 55 91 <br /> 76962 TePump 1 W 710,e --- ND 7.6 4.5 48 101 <br /> 1 <br /> Reporting Limit unless yy 50 ug/L 5.0 0.5 0.5 0.5 0.5 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 ugll-,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 <br /> (stoddard solvent);f)one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than <br /> water immiscible 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 /> 1, <br />