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' 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccamnbell corn E-mail mamQmccampbell corn <br />' Advanced GeoEnvironmental Client Project ID Charltcs Day&Nite Date Sampled 07/31/2000 <br /> 4005 North Wilson Way Date Received 08/02/2000 <br />' Stockton, CA 95205 CIient Contact Brian Millman Date Extracted 08102-08/03/2000 <br /> Client P O Date Analyzed 08/02-08/03/2000 <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- F83 <br /> ylenes %Recovery <br /> zene Surrogate <br /> 44211 MW10/07-31 W 63J ND ND ND ND ND 105 <br />' 44212 MW20/07-31- W 1400,b ND ND ND 52 93 <br /> 44213 MW30/07-31 W 610,a ND 53 28 30 33 109 <br /> I <br /> lie <br /> I <br /> Reporting Limit unless W 50 ug/L 50 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 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 /> "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 sign ificant(aged <br /> gasoline?), 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 /> r0 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 Edward Hamilton, Lab Director <br />