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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 /> h�//www mccamphd1com E-mail main@mccampbell com <br /> Adv Date Sampled 07/06/98 <br /> Advanced GeoEnvirarunental Client Project ID Flag City Chevron <br /> 4005 North Wilson Way Date Received 07/08/98 <br /> Stockton,CA 95205 Client Contact Tun Cuellar Date Extracted 07/09/98 <br /> Client P O Date Analyzed 07/09-07/11/98 <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 ID Client ID Matrix TPH(d) %Recovery <br /> Surrogate <br /> 91824 MWA W 66,b 107 <br /> 91825 MW-2 W 69,b 108 <br /> 91826 MW-4 W ND 107 <br /> 91827 MW-5 W 140,b 109 <br /> 91828 MW-6A W 99,b 109 <br /> 91829 MW-613 W 280,b 108 <br /> 91830 MW-7 W ND 108 <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 I STLC I 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 (9) f) <br /> one to a few isolated peaks present, g) oil range compounds are significant, h)lighter than water immiscible sheen is present, r) liquid <br /> sample that contains greater than—5 vol %sediment <br /> DHS Certification No I644 Edward Hamilton,Lab Director <br />