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' 110 Second Avenue South,4D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' h_ttp//www mccampbell com E-mail main@mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Chase-Van Buren Date Sampled 05/05/99 <br /> 4005 North Wilson Way Date Received 05/07/99 <br />' Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 05108-05/11/99 <br /> Client P O Date Analyzed 05108-05111199 <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 RW B SF Bay Region)method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylbeen- Xylenes o Recovery <br /> te <br /> 10569 MWgg5-5- W 190,000,a ND<1000 13,000 50,000 4100 23,000 101 <br /> 10570 MW96//5-5 W 2100,a ND 76 3 7 170 160 100 <br /> 10571 M 995-5- W 1900,a ND<10 40 70 98 180 101 <br /> 10572 MW909/5-5- W ND ND 1 1 40 1 1 5 1 105 <br /> 10573 M W 14 5-5 W 410,a ND 83 44 18 81 102 <br /> 99 <br /> I 10574 MW99515-5 W 320,a ND 90 42 14 65 103 <br /> I� 10575 MW966/5-5- W 320a ND 11 45 15 63 102 <br /> 10576 MW995-5 W 330,a ND 11 47 15 67 102 <br /> 10507 MW995-5 W I1,000,a ND<100 100 110 840 1500 105 <br /> I <br /> I <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> I means not detected above S 1 0 m 005 0 005 0 005 0 005 0 005 <br /> the reporting limn E-�g <br /> *water and vapor samples are reported in ug/L,%jpe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> I "cluttered chromatogram,sample peak coeIutes%%ith 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 sigmficant(aged <br /> gasolmc9), 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),1) <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 eresent,A liquid sample that contains grcater than—5 vol %sediment, no recognizable eattern <br /> DHS Certification No 1644 Edward Hamilton, lab Director <br /> I <br />