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i <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> t MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell com E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Project ID RFS-Soil Vapor Exe Date Sampled 12/20/00 <br /> 4005 North Wilson Way Date Received 12/21/00 <br /> Stockton, CA 95205 Client Contact Bill Little Date Extracted 12/21/00 V <br /> Client P O Date Analyzed 12/21/00 <br /> ' Gasoline Range(C6-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 /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 56598 Pre Ox Air 3900,a ND 1 8 78 43 170 109 <br /> ' 56599 Post Ox Air 110,a ND ND ND 087 4 1 105 <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 lint S 10 mg&g 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 ug1L <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 signiftcant(aged <br /> gasolme7), 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(?),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,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />