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I 1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> J4 http//www mccampbell co m E-mail main@mccampbell com <br /> ' Advanced GeoEnvironmental Client Project ID Local Food Store Date Sampled 10/02/00 <br /> 4005 North Wilson Way Date Received 10/03/00 <br /> ' Stockton,CA 95205 Client Contact Bill Little Date Extracted 10/03/00 <br /> LChent P O Date Analyzed 10/04/00 <br /> ' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 80I5,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 /> 49306 MW4-15 S ND ND 0 010 0 035 0 018 0 096 94 <br /> ' 49307 MW4-20 S 1 9,a ND 0 010 0 042 0 022 0 14 101 <br /> 1 <br /> t <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 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 gasolme is significant, b) heavier, gasohne range compounds are s,gn,fic.1'aged <br /> gasolinO), c) lighter gasoline range compounds (the most mobile fraction)are significant, d)gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasolinel,e)TPH pattern that does not appear to be derived from gasoline(1),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water imrmscible <br /> sheen is present t)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern � <br /> t <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />