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I]0 2nd Avenue South,#07,Pacheco,CA 94553-5560 <br /> WCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httn//www mocampbell co_m E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Arco Mmi Mart Date Sampled 02/15/2002 <br /> 837 Shaw Road (Pacific) Date Received 02/18/2002 <br />' Stockton, CA 95215 Chent Contact Bill Little Date Extracted 02/19/2002 <br /> LChent P 0 Date Analyzed 02/19-02/22/2002 <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 /> 90613 MW 1 I A/021502 W ND 102 <br />' 90614 MW 11 13/021502 W ND 101 <br /> )0615 MW 12A/021502 W ND 107 <br /> 1 90616 MW2B/021502 W ND 106 <br />' 90617 MW 13/021502 W ND 89 <br /> 1 <br /> i <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 sarrq3les 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 /> durnmshed by dilution of original extract <br />' +The following descriptions of the TP14 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 dieseh is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel(v), 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 />