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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 /> h //www mccam bell corn E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project 1D Chase Van Buren Date Sampled 12/06/00 <br /> 4005 North Wilson Way Date Received 12/07/00 <br />' Stockton, CA 95205 Client Contact Paul Dotson Date Extracted 12/07/00 <br />' Client P O Date Analyzed 12/07/00 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> _FPA 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 Et ZeneS <br /> en Xylenes �Burro aRecovte <br /> 55237 Inlet/120600 Air 250,a --- ND 39 24 12 103 <br /> 1 <br /> 1 <br /> 1 <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 /> *water and vapor samples are reported to 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 />' A 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 signtficant(aged <br />' gasoline')), c) lighter gasoline range compounds (the most morale fraction) are significant d)gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasolmel,e)TPH pattern that does not appear to be derived from gasoline(9),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,a)no recognizable patter <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />