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110 Second avenue South,..=D7,Pacheco,CA 94553 <br /> NlcCAMPBELL ANALYTICAL NC. Telephone:510-79S-1620 Fax : 510-79S-1622 <br /> ccamobell.com E-mail:;nainrmccampbcll.com <br /> Versar, Inc Client Project ID: B OCA-Ripon <br /> Date Sampled: 05;16;97 <br /> 7344 Madison Ave., # 16 Date Received: 05.19.97 <br /> Fair Oaks. CA 95623 Client Contact: Vern Elarth Date Exrracted: 05.19,97 � <br /> i <br /> Client P.O: Date Analvzed: 05.19!97 <br /> Diesel Range (C10-C23) Extractable Hydrocarbons as Diesel <br /> E?A methods modified 3015.and_4750 or 3510:California R%VQCB(SF Bav Re^-ioni Te:hod GCFID(=_5501 or C�CFID(3510) <br /> Lab 1D Client 1D I Matrix TPH(d)- Recovery <br /> Surrogate <br /> 76539 BH-1-15.5' S ND 101 <br /> 76590 BH-I W I 2.0,; 103 <br /> 7659: BH-2-15.5' S ND 101 <br /> 76:94 BH-2 W 111 <br /> 76597 BH-3-15.5' S ND 104 <br /> 7659S BH-3 W ND 104 <br /> 76601 I BH-4-15.5' S ND I 104 <br /> 76602 I BH-4 W ND 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 ugrL <br /> 'cluttered chromatogram resulting in coeluted 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(?); f) <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.110 sediment <br /> DHS Certification No. 1644 %!� Edward Hamilton,Lab Director <br />