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i <br /> 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone :925-798-1620 Fax:925-798-1622 <br /> htW://www,mccampbell.com E-mail: main@mccampbell.com <br /> i <br /> Advanced GeoEnvironmental Client Project ID: Strong Property Date Sampled: 07/09/98 <br /> I 4005 North Wilson Way Date Received: 07/11/98 <br /> Stockton,CA 95205 Client Contact: Tim Cuellar Date Extracted: 07/11/98 <br /> IClient P.O: Date Analyzed: 07/11/98 <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 /> Lab 1D Client 1D Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 91956 MW4-15 S ND 97 <br /> I <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 /> "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.%sediment. <br /> DHS Certification No. 1644 /L/ Edward Hamilton,Lab Director <br />