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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 /> hM2://wwvr.rncggWybell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:Hess Duboise Date Sampled: 04/12/01 <br /> 837 Shaw Road Date Received: 04/17/01 <br /> ' Stockton, CA 95215 Client Contact:Bill Little Date Extracted: 04/18-04/19/01 <br /> Client P.O: Date Analyzed: 04/18-04/I9/01 <br /> ' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,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 ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 65631 0MW01 W ND ND ND ND ND ND 105 <br /> t65632 0MW21 W 610,e ND ND ND ND 0.91 103 <br /> 041201 <br /> 65633 MW3 W 1800,e ND ND ND 0.$9 ND 103 <br /> ' 65634 0MW41 W ND ND ND ND ND ND 102 <br /> 65635 01 <br /> MW51 W ND ND ND ND ND ND 105 <br /> -- <br /> 65636 OMW6 W 260,f ND ND ND ND ND � <br /> 65637 04 101 W 71,f ND ND ND ND ND 118 <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 /> *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 McCampbeil 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 he 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 <br /> than 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 />