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.-t AGE STOCKTON PAGE 04 <br /> 02/22/2002 12:22 20946739:51AM; Page 719 <br /> By: McCampbell Ana1yLica] � yiJ ; 1 925 798 4612; Feb 22 <br /> Send <br /> 110 2nd Avenue South,41D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-795.1622 <br /> hittwi/www.rinc •m bell.cot" E-mail:mainCmccarrmpbcll,com <br />€i Advanced GeoEnviromnental Client Project LD;Van Bwki[lc-1740 Date Sampled',02/20)42'-- <br /> Houston y Date Received, OZ/21/02 <br />� $37 Sltaw Road <br /> Stockton,CA 95215 Client Contact:Bill Little Date t;xtracted:02/21102 <br /> Client PA; u w Date Analyzed: 02/21/02 <br /> Gasoilne Rauge{C(>-C12)Volatile Hydrocarbons as Gasoline",with Methyl tori-Butyl Ether* &BTEX* <br /> TEPA methu/Js 5030,modified 8015,and$020 urCs42;California ltw4CR(SF DAy ttcgion)method CiCF)D(5m) <br /># l <br /> Lab]D Client TD Matrix 'fl'H(g), MTBE Benzene Tolunnc EthyXylenes °/Recovery <br /> benzene Surrogate <br /> + <br /> 91037 B9-50'-55' W NDJ 41 ND ND ND ND l0i <br /> 1 <br /> i <br /> I <br /> Reporting Limitta�bovki <br /> 50 a /L 5.0 0.4 5 <br /> otherwise state8 0- 0,5 0,5 <br /> rnems no(dctectthe,cponing L0 mglkg 0.05 0,005 0.005 0.005 0.005 <br /> *wafer anti vapor samples are reported in ug/l„wipe aamIdcy ill uq.lwipe,Wil and sludge samples in mg/kg,and all TC1.l'orld SPI,1'extrauta <br /> 3 In ug/.L <br /> "clutt—d chmmalogram;santpic peak cnetutes with surrogate peak <br /> 'The tollowing descriptions of the TAW chromatogram arc cursory in nature and Mct;ump�cll.hnxlyticai ig not responsible rex their <br /> interpretasion: a) L,nmoditied or weakly n'rodifled gasoline is Significant; b) heavier gasuhlic range compounds are 5igniticant(aged <br /> ! gasoline7l; c) lightV gAi Clinc rtnge ocrmpoUnds (thc mt>r;1 mobile fraction) are.SigniliCanL;d) gasoline range canlpotrncls having broad <br /> + chrolruiv, raphic peak9 are significant'biologically altered ga5ol Ine?;a)1'1'11 Pattern that doc5 nal appear to be derived frum ga6alinc('');t) <br /> E one tV a fcL isolated peaks present;g)strongly aged gasotm of diesel roost;compounds Ore significant:h)lighter o)2n wafer immiscihle <br /> 5110eri is prcserst;i)liyi,id sample that coptain5$realer than—5 vol.%sediment j)no rccogizable patterplpatterrl. <br /> IMS Certification No. 1644 � Edward Hamilton,Lala Director <br /> 1 <br />