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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 mccampbell com E-mail matn@mccampbell com <br />' Advanced GeoEnvironmental Client Protect ID ChaseNan Buren Date Sampled 10/05/00 <br /> 4005 North Wilson Way Date Received 10/06/00 <br />' Stockton, CA 95205 Client Contact Paul Dorson Date Extracted 10/06/00 <br /> Client P O Date Analyzed 10/06/00 <br />' Gasoline Range (C&C12)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 />' <br /> Lab ID Client ID Ma tnx TPH(g)+ MTBE Benzene Toluene Et ween Xylenes /Surroog ate <br /> very <br /> 49837 Inlet Air 120,a ND ND 29 ND 89 106 <br /> 1 <br /> lie <br /> t <br /> 1 <br /> t <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 Q mg/kg 005 0 005 0005 0 OQS 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 significant(aged <br />' gasohne9), 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(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,I)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton, Lab Director <br /> i <br />