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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 9-25-798-1622 <br /> htW//www mccampbell com E-mail main@mccampbell com <br /> rAdvanced GeoEnvironmental Client Project ID MBP-Mossdale Date Sampled 01/08/01 <br /> 4005 North Wilson Way Date Received 01/09/01 <br /> Stockton, CA 95205 Client Contact Bill Little Date Extracted 01/09-01/12/01 <br /> Client P O Date Analyzed 01/09-01/12/01 <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 /> I Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 57431 MWI/ W 95,b --- ND 12 077 0 93 103 <br /> I 57432 MW2/ W 2700,b --- 4 2 44 260 98 104 <br /> 010801 <br /> 57433 MW3/ W ND --- ND ND ND ND 103 <br /> I 010$01 -- <br /> 57434 MW41 W ND ND ND ND AID 105 <br /> 010$01 <br /> 57435 MWS/ W ND --- ND ND ND ND 107 <br /> I010801 <br />�• I <br /> I ' <br /> I <br /> I <br />' Reporting Limit unless W 50 ug/L 5 0 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> I <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 signifcant(aged <br /> I gasohne')), 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,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />