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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 1 4 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hq//www mccampbell com E-mail main@mccampbell com <br /> • <br /> 1 Advanced GeoEnvironmental Client Project ID Nomellini Date Sampled 06/07/00 <br />' 4005 North Wilson Way Date Received 06/08/00 <br /> Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 06/08-06/09/00 <br />' Client P O Date Analyzed 06/08-06/09/00 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* & BTEX* <br /> EPA methods 5030,mouified 8015 and 8020 or 602,California RW CS SF Bay Region)method GCFID 5030 <br />' Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> zenc Surro ate <br /> 39845 Inlet Air 72,b --- ND ND ND 24 101 <br />' 39846 Outlet Air ND --- ND ND ND 21 100 <br /> 1 <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 10 mg/ 8 k 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 SDLP extracts <br /> in uglL <br />' 0 cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'Tire 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 ficant(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 gasolme9 e)TPH pattern that does not appear to be derived from gasoline(7),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 greatcr than—5 vol %sediment no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />