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110 Second Avenue South,#D7,Pacheco,CA 94553 <br /> McCf1MPBELL ANALYTICAL INC. Telephone : 510-798-1620 Fax:510-798-1622 <br /> t :/lwww. cc 1 . E-mail: main@mccampbell.com <br /> ' Advanced GeoEnvironmental Client Project ID:Hess-Dubois Date Sampled: 12/31/97 <br /> 4005 North Wilson Way Date Received: 01/06/97 <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted: 01106-01108197 <br /> ' Client P.O: Date Analyzed: 01/06-01108197 <br /> Stoddard Solvent Range(C9-02)Volatile Hydrocarbons as Stoddard Solvent*,with Methyl tert-Butyl <br /> Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab 1D Client ID Matrix TPH(ss)+ MTBE Benzene Toluene Ethyiben- Xylenes %Recovery <br /> zene Surrogate <br /> 84719 MW-1 W ND ND ND ND ND ND 95 <br /> 84720 MW-2 W 430,e ND ND 1.0 ND 2.9 100 <br /> ' 84721 MW-3 W 1700,e,f ND 0.98 0.98 6.2 11 98 <br /> 84722 MW-4 W ND ND ND 1.9 ND 1.2 105 <br /> 84723 MW-5 W ND ND ND 0.59 ND ND 96 <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 (1.005 0.(1(15 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 /> t chromatographic peaks are significant;biologically altered gasoline?; e) TPH pattern that docs not appear to he derived from gasoline <br /> (sioddard solvent?);t)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 fl Edward Hamilton,Lab Director <br /> 1 <br />