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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 /> httn I/www, bell.rom E-mail main@mccampbell com <br /> • <br /> John P Cummings&Associates Client Project ID #394032 05,Torn Date Sampled 04113-04114199 <br /> Pane Date Received 04/15/99 <br /> P O Box 2847 <br /> Fremont,CA 94536-2847 Client Contact John Cunurungs Date Extracted 04/15/99 <br /> Client P O Date Analyzed 04115-04116199 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasohne*,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 /> Ethyiben- %Recovery <br /> Lab CD Client ID Matrix TPII(g)+ MTBE Benzene Toluene Zene Xylenes Surrogate <br /> 09196 HP-4-20 S ND ND ND ND ND ND 98 <br /> 09197 MW-1 W ND ND ND ND ND ND 104 <br /> 09198 MW-2 W 300,a ND 55 060 ND 24 105 <br /> 09199 MW-3 W 170,a ND ND ND 072 15 105 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 10 mg/kg 005 0 005 L <br /> 005 0 005 0 005 <br /> the reporting limit <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 to 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 /> gasolme9), 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 imnusciblc <br /> sheen is present,t)liquid sample that contains greater than--5 vol %sediment,)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />