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I110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> 4 MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hey.//www mccamnbell.com E-mail mamQmccampbell com <br /> • <br /> Advanced GeoEnvironmental Client Project ID Chase Chevrolet-Van Date Sampled 04112-04115199 <br /> 4005 North Wilson Way Buren Date Received 04/17/99 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 04/19/99 <br /> Client P O Date Analyzed 04/19-04/21/99 <br /> Gasoline Range(C6-Cl2)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 Ethylben Xylenes %Recovery <br />' -zene Surrogate <br /> 09340 VW5-20 S 4900,a ND<5 46 400 120 660 " <br />' 09341 VW5-25 S 9000,a ND<5 85 750 230 1200 --° <br /> 1• <br /> I <br /> I <br /> I <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting lima S 1 0 mg/kg 005 0 005 0 005 0 405 0005 <br />' <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 />' gasohnel), 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("),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,1)liquid sample that contains greater than--5 vol %sediment,I)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br />