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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> ' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 bn I/www mccamnbell com E-mail main@mccampbell cam y <br /> Advanced GeoEnvu-onmental CIient Project ID #0144, Chase- Date Sampled 05/07/98 <br /> 4005 North Wilson Way Madison Date Received 05/08/98 <br /> ' <br /> Stockton,CA 95205 Client Contact Kevin Mckibben Date Extracted 05111-05/12198 <br /> ' Client P O Date Analyzed 05111-05112198 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,,Aith 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 Matnx TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 88978 MW-1 W ND ND ND ND 095 060 88 <br /> ' 88979 MW-2 W ND ND ND ND ND ND 93 <br /> 88980 MW-4 W ND ND ND ND ND ND 93 <br /> 88981 MW-13 W 120,a NDND ND ND 93 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L 5 0 0 5 05 05 05 <br /> otherwise stated,ND g <br /> ' means not detected above <br /> the reporting limit S 10 mg/kg 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 /> ' <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 stgmficant(aged <br /> gasohne9) c) lighter gasoline range compounds (the most mobile fraction) are significant d) gasoline range compounds having broad <br /> 40 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 /> 1 <br />