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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http:LmNw_.Mccamj2bell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Strong Property Date Sampled: 07/15/98 <br /> 4005 North Wilson Way Date Received: 07/16/98 <br /> Stockton, CA 95205 Client Contact: Tim Cuellar Date Extracted: 07/17/98 <br />' Client P�O: Date Analyzed: 07/17/98 <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 /> t Lab ID Client ID Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 92234 MW-117-15-98 W 510,a,b 107 <br /> 92235 MW-2/7-15-98 W 1600,d,b 109 <br />' 92236 MW-3/7-15-98 W 200,b 108 <br /> 92237 MW-4/7-15-98 W ND 100 <br /> lie <br /> t <br /> r <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 />' <br /> -rhe 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 /�� Edward Hamilton,Lab Director <br />