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' I 10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' hap//www mccamp.tell corn E-mail main@mccampbell com <br />' Advanced GeoEnvironmental CIient Project ID #0211, Genielos Date Sampled 11/18/98 <br /> 4005 North Wilson Way Property Date Received 11/20/98 <br />' Stockton, CA 95205 Client Contact Bill Little Date Extracted 11/20-11/23/98 <br /> Client P O Date Analyzed 11/20-11/23/98 <br />' Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*, v.ith Meth}I tert-But-,I Ether* & BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602 California R11 QCB(SF Bay Region)method GCFID(5030) <br />' Lab ID Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zene Surrogate <br /> 98907 MW-1 W 270,b,1 ND ND 0 95 063 1 3 98 <br />' 98908 MW-2 W ND ND ND ND ND ND 96 <br /> 98909 MW-3 W 180,1 ND ND 1 5 1 0 14 95 <br /> lie <br /> I <br /> IRepomng Limit unless W 50 ug/L 5 0 U 5 0 5 0 5 0 5 <br /> otheivosestaied ND <br /> means not detected above <br /> the seporlmg lmnu mg/kg S 1 0 m /k 0 05 0 005 0 005 0 005 0 005 <br /> *nater and%apor samples aie reported in ug/L,Wipe samples in fig/nope soil and sludge samples nit mgr}g .ind all I CI-P and SPLP exii acts <br /> in ug/L <br /> I <br /> cluttered chi omatogram sample peak coelutes with suiTogate peal, <br /> 'The follonnig desciiptions of the TPH chromatogram are cursoiy ❑n naltue and McCampbell Analytical is not responsible for their <br /> Interpretation a) unmodified or weakly modified gasoline is significant b) header gasoline range compounds aie significant(aged <br /> gasoline') c} fighter gasoline range compounds (the most mobile tiaction) aie significant d) gasoline iange compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoli ne9 e)Till I pattern that does not appear to be dein ed from gasoline <br /> one to a few isolated peaks present,g)strongly aged gasoline of diesel iange compounds aie significant h) lighter than nater immiscible <br /> sheen is present,r)liquid sample that contains greater than—5 vol °/, sediment j)no recognizable pattei n <br /> I <br /> DI <br /> JS Certification No 44 16 �l�Edward Hamilton, Lab Director <br /> I <br />