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r <br /> L110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax:925-798-1622 <br /> hM2://www.mccaml2bell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental !i' Client Project ID:Arco Mini Mart Date Sampled: 12/31/98 <br /> 4005 North Wilson Way Date Received: 01/05/99 <br /> I <br /> Stockton, CA 95205 Client Contact:Noel Henderson Date Extracted:01/05-01/07/99 <br /> I. <br /> ! Client P.O: Date Analyzed: 01105-01/07/99 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel <br /> EPA methods modified 8015,and 3550 or 3510;California RWQCB(SF Bay Region)method GCF1D(3550)or GCFID(3510) <br /> Lab ID Client ID i' Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 01297 MW1-12131198 i'" W ND 100 <br /> El 01298 MW2-12131198 ! W ND 103 <br /> f 01299 MW3-12/31/98 j W ND 101 <br /> E <br /> f 01300 MW7-12/31/98 W 110,b 84 <br /> 01301 MW4-12131198 W 4600,d 106 <br /> 3: <br /> 01302 MW5-12131/98 W 9800,d 105 <br /> 01303 MW6-12131/98 �' W 190,d,b 104 <br /> 01304 VW]-]2131198 i W 680,d 85 <br /> ,t. <br /> I <br /> Reporting Limit unless otherwise W 50 ug/L <br /> stated;ND means not detected aboveE j <br /> the reporting limit I 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 1 STLC 1 SPLP <br /> extracts in ug/L <br /> N cluttered chromatogram resulting in coeluted surrogate and sample peaks,or;surrogate peak is on elevated baseline,or;surrogate has been <br /> ' <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)ail range compounds are significant; h) lighter than water immiscible sheen is present; i) liquid <br /> - sample that contains greater than—5 vol.%sediment. <br /> it <br /> DHS Certification No. 1644 //1 Edward Hamilton,Lab.Director <br /> i <br /> 1 , <br />