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I 10 Second Avenue South,#137,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.mcca[Upbell.com E-mail:main@mccampbell.com <br /> mccampbell.com <br /> The Mark Group,Inc. Client Project ID: #961113007.20; Date Sampled: 0412119$ <br /> I <br /> 1900 Bates Avenue, Suite K Stockton DYA Date Received: 04/2119$ <br /> Concord,CA 94520 Client Contact:Jim Herbert Date Extracted: 04/21/98 <br /> Client P.O: Date Analyzed: 04/21-04/22/98 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel* <br /> EPA methods modified 8015,and 3550 or 3510;California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) <br /> TPI-I(d)+ %Recovery <br /> Lab ID Client ID Matrix Surrogate <br /> 88345 CH-3R(4.5') S 44,c,g 103 <br /> 88346 CH-3R(10.5') S ND 103 <br /> 88347 CH-4R(4.5') S 470,a,g 103 <br /> 88348 CH-4R(10') S ND 102 <br /> 88349 CH-5R(4') S ND 102 <br /> 88350 CH-SR(10') S ND 101 <br /> 88351 Comp S2 S 38,a 102 <br /> Reporting Limit unless otherwise W 50 ug/L <br /> stated;ND means not detected above <br /> the reporting limit S 1.0 mg/kg <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/STLC/SPLP <br /> extracts in ug/L <br /> N cluttered chromatogram resulting in eoeluted surrogate and sample peaks,or;surrogate peak is on elevated baseline,or;surrogate has been <br /> diminished by dilution of original extract. <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 diesel is significant;b)diesel range compounds are significant;no recognizable pattern;c) <br /> aged diesel?is significant);d)gasoline range compounds are significant;e)medium boiling point pattern that does not match diesel(?); 1) <br /> one to a few isolated peaks present; g)oil range compounds are significant; h) lighter than water immiscible sheen is present; i) liquid <br /> sample that contains greater than—5 vol.%sediment. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />