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110 Second Avenue South,#fD7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br />' 24 http/htiww mccampbell coin E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Project ID Arco Mint Mart Date Sampled 07/23/97 <br /> 1803 West March Lane, Ste A Date Received 07124/97 <br />' Stockton, CA 95207 Client Contact Bill Little Date Extracted 07/24/97 <br />' Client P O Date Analyzed 07124-07/28/97 <br /> Diesel Range(C10-C23) Extractable Hydrocarbons as Diesel <br /> EPA methods modified 8015,and 3550 or 3510,California R%VQCB(SF Bay Region)method GCFID(3550)or GCF1D(3510) <br />' Lab ID Client 1D Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 78964 MW4/7-23-97 W 2400,d 104 <br />' 78965 MW5/7-23-97 W 9200,d 102 <br />' 78966 MW6/7-23-97 W 4800,d 104 <br /> 78967 MW7/7-23-97 W 64,d 105 <br />' 78968 VW1/7-23-97 W I1,000,d 102 <br /> 1 , <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 samples in ug/%%ipe 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 of surrogate peak is on elevated baseline or,surrogate his 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 hoiling point pattern that does not match diesel (1), f) <br /> • one to a few isolated peaks present, g)oil range compounds are significant lt) lighter than water immiscible sheen is present, i) liquid <br />' sample that contains greater than--5 vol %sediment <br /> DHS Certification No 1644 //J Edward Hamilton, Lab Director <br />