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I 10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> p//wu,w mccampbell coin E-mail main@mccampbell coin <br /> hi <br /> Advanced GeoEnvironmental Client Project ID Cherokee Truck Stop Date Sampled 12/23/98 <br /> 4005 North Wilson Way Date Received 12/24/98 <br /> Stockton, CA 95205 Client Contact Kevin Mckibben Date Extracted 12/28/98 <br /> Client P O Date Analyzed 12/28/98 <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 GCF1D(3510) <br /> Lab ID Client ID Matrix TPH(d)` %Recovery <br /> Surrogate <br /> 00876 UST-2/12-23-98 W ND 105 <br /> 00877 UST-3/12-23-98 W ND 106 <br /> 00878 UST-4/12-23-98 W ND 106 <br /> 00879 UST-5/12-23-98 W 220,b 105 <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 /> *nater and vapor samples are reported in ug/L,urpe samples in ug/n ipe soil and sludge samples in mg/3 g and all TCLP/STLC/SPLP <br /> extracts in ug/L <br /> 9 cluttered chromatogram resulting in coeluted surrogate and sample peals or,surrogate peat, is on cic%ated baseline,or surrogate has been <br /> diminished by dilution of original extract <br /> 'The following descriptions of the TPH chromatogram are cursoiv in nature and McCampbell Xnalvilcal is not responsible for their <br /> interpretation a)unmodified or weakly modified diesel is significant b)diesci range compounds are significant no recognizable pattern,c) <br /> aged diesel's is significant),d)gasoline range compounds are significant e)medium bothng point pattern that does not match diesel ("), f) <br /> one to a few isolated peaks present, g)oil range compounds are significant h) lighter thin nater 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 />