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11 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAWBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> hUp://www.mcOxapbg l.coM E-mail:main@mccampbell.com <br /> a <br /> Advanced GeoEnvironmental Client Project ID:Hess Debois Date Sampled: 01/15/99 <br /> 4005 North Wilson Way Date Received: 01/18/99 <br /> Stockton,CA 95205 Client Contact: Bill Little Date Extracted: 01/18/99 <br /> Client P.O: Date Analyzed: 01/18-01/22199 <br /> ' Stoddard Solvent(C9-C12)Volatile Hydrocarbons as Stoddard Solvent*,with BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 642;California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(ss)+ Benzene Toluene Ethylben- Xylenes %Recovery <br /> ' zene Surrogate <br /> 01893 MWI/1-15-99 W 55,e ND ND ND ND 109 <br /> 01894 MW2/1-15-99 W 720,e ND ND ND ND 96 <br /> 1 <br /> 01895 MW3/1-15-99 W 3100,e,h 1.0 1.0 2.7 20 96 <br /> ' 01896 MW4/1-15-99 W ND ND ND ND 2.2 105 <br /> 01897 MWS/1-15-99 W NO ND ND ND ND 110 <br /> Reporting Limit unless W 50 ug/L 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND means <br /> ' not detected above the <br /> reporting limit S 1.0 mg/kg 0.005 0.005 0.005 0.005 <br /> w water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP&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 <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 />