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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//wwwmccampbellcom E-mail main@mccampbell cam <br /> • <br /> Advanced GeoEnvironmental Client Project ID Pacific Auto Center Date Sampled 04/20/00 <br /> 4005 North Wilson Way Date Received 04/21/00 <br /> Stockton,CA 95205 Client Contact Tony Mikacicl Date Extracted 04/21/00 <br />' Client P O Date Analyzed 04121/00 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602 Califomia RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 36212 MW 1/004-20 <br /> 00 <br /> W 2600,a ND 27 15 56 310 108 <br /> 36213 MW20/04-20 W ND ND ND ND ND ND 98 <br /> 362I4 MW3//04-20- W 440,a ND 24 2 9 099 43 98 <br /> 00 <br /> 36215 DWI//004-20 W ND ND ND ND ND ND 98 <br /> I• <br /> f <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> Ithe reporting limit S l 0 mg/kg 005 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 /> a 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 signrficant(aged <br /> gasoline) c) lighter gasoline range compounds (the most mobile fraction) are significant, d)gasoline range compounds having broad <br /> chromatographic peaks arc significant,biologically altered gasoline? e)TPH pattern that does not appear to be denved from gasoline C),0 <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,Q liquid sampke that contains greater than�5 vol %sediment,j)no recognizable pattem <br /> I <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />