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l 10 Sccond Avcnue South,#D7, Pacheco,CA 94553 <br /> MCCAMPBELL, ANALYTICAL, INC. Telephone: 510-798-1620 Fax : 510-798-1622 <br /> httu-/IwwW.mccampbcll.com E-mail: main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Elkhorn Country Chtb Date Sampled: 08/04/97 <br /> 1803 West March Lane, Ste A Date Received: 08/05/97 <br /> r?a <br /> 1 Stockton,CA 95207 Client Contact: Bill Little Date Extracted: 08/05-08/07/97 <br /> Client P.O: Date Analyzed: 08105-08107197 <br /> `! Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with illethyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602',Calilontia RWQCB(SF Bay Region)method GC'FID(5030) <br /> Lab M Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> I:=> zcne Surrogate <br /> i <br /> 79475 MW2 W II00,b,d ND 6.4 45 61 230 97 <br /> [[ 79476 MW3 W 1200,a \D 33 230 43 210 105 <br /> 79477 MW5 W ND ND ND ND ND ND 105 <br /> 79478 VW2 W 2500,a ND 93 300 47 88 124# <br /> j Reporting Limit unless W 50 uglL 5,0 (1.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not defected above <br /> the reporting limit S 1.0 nig/kg 0.05 0.005 0.005 0.005 0.005 <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 chromatogiam;sample peak coelutes with surrogate peak <br /> The following descriptions of the TPH chromatogram are cursory in nalure and McCantpbell Analytical is not responsible lbl- their <br /> .-� interpretation: a) unmodified or weakly modified gasoline is significant; b) heavier gasoline range compounds are signiftcant(aged <br /> .� gasoline?), c) lighter gasoline range compounds (the most mobile fraefion) are srgnilicant; d) gasoline range compounds having broad <br /> clu-ontalographic peaks are significant;biologically altered gasoline'?;e)'CPM patient that docs not appear to be derived front gasoline(7);1) <br /> one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant; h) lighter titan water immiscible <br /> sheen is present;i)liquid sample that conlains greater than—5 vo).%.sediment;j)no recognizable patient. <br /> ,f <br /> DHS Certification No. 1644 Cr Edward Hamilton,Lab Director <br />