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i <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> ihttp//www mocampbell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Cal Fuels Date Sampled 04/12/01 <br />' 837 Shaw Road <br /> Date Received 04/13/01 <br /> Stockton, CA 95215 Client Contact Tien Cuellar Date Extracted 04/13/01 <br /> I Client O Date Analyzed 04/13/01 <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 Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 65412 Inlet Air 1700,b,1 ND 21 4 9 160 107 <br />' 65413 Outlet Air ND ND ND ND 3 6 103 <br /> 1 <br /> 1 <br /> 1 <br />' Reporting Limit unless Air 50 ug/L 50 0 5 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above S 10 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> the reporting limit <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 /> gasolme9), 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(�),Q <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,,])no recognizable pattern <br /> 1 <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />