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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' 24 btW://www.mNimpItUs&mE-mail main c@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Chase-Van Buren Date Sampled 02/03-02/04/99 <br /> 4005 North Wilson Way Date Received 02/05/99 <br />' Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 02/05-02/11/99 <br /> Client P O Date Analyzed 02/05-02/11/99 <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,Cahforma RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab 1D Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> I zene Surrogate <br /> 02839 MW90O/2-3- W ND ND ND 080 ND 1 6 108 <br /> 02840 MW 14 2-3 W ND ND 1 4 0 89 ND ND 110 <br /> 02841 MWI959/2-3 W ND ND 054 ND ND ND 104 <br /> 02842 MW969/2-3- W ND ND ND ND ND ND 107 <br /> 02843 MW1979/2-3 W ND ND ND 076 ND 14 108 <br />' 02844 M9924W 170,000,a,h ND<200 21,000 54,000 4400 29,000 106 <br /> 02845 MW96//2-4 W 1200,a ND 66 063 130 130 99 <br /> 02846 M 992 -4 W 1400,a ND 42 2 9 110 130 104 <br /> 02847 M 9/-4 W 3600,a ND<60 3 0 380 230 1900 101 <br /> 99I <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limitS 10 m$fig 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 /> to 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 /> mterpremtton a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are s,gmficant(aged <br /> gasoline9), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasol:ne9,e)TPH pattern that does not appear to be derived from gasoline(9),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 panem <br /> DHS Certification No 1644dward <br /> 1�E Hamilton,Lab Director <br />