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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 http l/www mccampbelf com E-mail mai rJmccampbell com <br /> • <br /> Advanced GeoEnvironmental Client Project ID West Clay Properties Date Sampled 08131-09/01/98 <br /> 4005 North Wilson Way Date Received 09/02/98 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 09102-09108198 <br /> Client P O Date Analyzed 09102-09108/98 <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 /> 94480 MW-1/8-31-98 W 2100,d,b 112 <br /> 94481 MW-218-31-98 W 4600,d,b 99 <br /> 94482 MW-318-31-98 W ND 104 <br /> 94483 MW-418-31-98 W ND 103 <br /> 94484 MW-518-31-98 W ND 110 <br /> 94485 MW-6A/8-31-98 W 90,b,i 95 <br /> 94486 MW-6B/8-31-98 W 240,b,g,i _ 112 <br /> • 94487 MW-8A/8-31-98 W ND,i 100 <br /> 94488 MW-8B18-31-98 W 85,b III <br /> 94489 MW-719-1-98 W 240,d,b 110 <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/l%g,and all TCLP!STLC/SPLP <br /> extracts in ug/L <br /> V 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'aange compounds are significant,no recognizable pattern,c) <br /> aged diesch 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)oil range compounds are significant, h) lighter than water imnnscible sheen is present i) liquid <br /> sample that contains greater than--5 vol %sediment <br /> DHS Certification No 1644 ��'Edward Hamilton,Lab Director <br /> 1 <br /> 1 <br />