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i <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-7981622 <br />' http//www mccampbell com E-mail main@mccampbell cam <br /> Advanced GeoEnvironmental Client Project ID Chase Van Buren Date Sampled 10/16/2000 <br /> 4005 North Wilson Way Date Received 10/17/2000 <br /> IStockton, CA 95205 Client Contact Paul Dotson Date Extracted 10/17/2000 <br /> Client P O Date Analyzed 10117-10/18/2000 <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,California RWQCB(SF Bay Region)method GCFID(5030) <br /> I <br /> Lab ID Client ID Matrix TPH(g) Ethylben-MTBE Benzene Toluene Xylenes %Recovery <br /> zene Surrogate <br /> 50566 INLET Air 77,a ND ND 080 ND 1 7 105 <br />' 50567 OUTLET Air ND ND ND ND ND 15 108 <br /> 1 <br /> lie <br /> I <br /> I <br /> I <br />' Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br />' <br /> 'water and vapor samples are reported in ug/I_.,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) gasolme 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,i)liquid sample that contains greater than--5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 JNY Edward Hamilton,Lab Director <br />