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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 4 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httn//www.mccamnbell.com E-mail main@mccampbell coin <br /> � <br /> —Environmental Science Associates Client Project ID #UOP 20425 2 Date Sampled 01/10-01111101 <br /> 225 Bush Street,Suite 1700 Date Received 01/12/01 <br /> Client Contact Peter Hudson Date Extracted 01/12/01 <br /> San Francisco,CA 94104 <br /> [Client P O Date Analyzed 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 /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 57788 W-25-TP15 W ND --- ND ND ND ND 104 <br /> 57791 W-25-TPiO W ND --- ND ND ND ND 105 <br /> 57793 W-25-TP17 W ND --- ND ND ND ND 106 <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above SI O m /1c 0 OS 0 005 p 005 0 005 0 Ops <br /> the reporting limit g g <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/[, <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 arc 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("),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,t)no recognizable pattern <br /> tDHS Certification No 1644 Edward Hamilton,Lab Director <br />