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1 10 Second Avenue South #D7, Pacheco,CA 94553 <br /> 4 <br /> MCCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> htt //wwm mccampbcll com E-marl main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Geweke Date Sampled 03/10/98 <br />' 4005 North Wilson Way Date Received 03/I2/98 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 03112-03116198 <br /> Client P O I Date Analyzed 03/12-03/16/98 <br /> Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*, with Meth-,1 tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,Cahfomta RWQCB(SF Bad Region)mcthnd G(FID(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zene Surrogate <br /> 86672 EW-1103-10-98 W 110,b ND ND ND 6 0 6 2 103 <br /> t <br /> 1 <br />' <br /> Repoi ling Limit unless W0 u / <br /> W50 gL 5o 05 u, os Os <br /> otlteru ise stated ND means not <br /> detected above the reporting 1 0 <br /> limit S mg/kg 005 0 005 (I 001 0 005 0 005 <br /> `nater and%apoi samples are reported in ug/L,wipe samples 1n ug/wipe %nil and sludge sanlplcS in 111E/hg and all TCLP and SDLP extracts <br /> in ug/L <br /> cluttered chromatogram sample peak coelutes with surrogate peak <br /> The following descriptions of the TPH chromatogram are cursory In nature and WCanlpb1,ll Analvucal is not responsible for their <br /> lnteipletation a) unmodified or weakly modified gasoline is significant h) hen%iei gj%oJint, Lange compounds are signlficant(aged <br /> gasoline'') c) lighter gasoline range compounds (the most mobile fraction) are significant d) ua%olme range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline i e)TPH pattern that cine,not appear to be derived from gasoline(1) t) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel rangy uintpounds nL vgmfiLant h)hghtei than Aater immiscible <br /> sheen is present,i)liquid sample that contains greater than—5%al '%%cdnnent j)no rcLognlzable paticrn <br /> DHS Certification No 1644 /�� Edward Hamilton,Lab Director <br />