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I110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 9252198-1622 <br /> Ihitp//www mccamnbel]com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Yamada Date Sampled 09/06/00 <br /> 4005 North Wilson Way Date Received 09/07/00 <br /> IStockton, CA 95205 Client Contact Tony Mtkacich Date Extracted 09/07/00 <br /> Client P O Date Analyzed 09108-09111/00 <br /> Dieser 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 /> I Lab ID Client ID Matrix TPH(d)* %Recovery <br /> Surrogate <br /> 46897 MW-1/09-06-00 W ND 107 <br /> l46898 MW-2/09-06-00 W ND 109 <br /> I 46899 MW-3/09-06-00 W ND 109 <br /> 46900 DW-1/09-06-00 W ND 109 <br /> I � <br /> i <br /> I <br /> Reporting Limit unless otherwise W 50 ug/L. <br /> stated,ND means not detected above <br /> the reporting limit S 10 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 /> "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 fallowing 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 (v), 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 %sediment. <br />' DHS Certification No 1644 .—*Edward Hamilton, Lab Director <br /> 1 <br />