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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mgggMpbell com E-mail main@mecampbell com <br />' Advanced GeoEnvironmental Client Project ID West Clay Properties Date Sampled 08/11/00 <br /> 4005 North Wilson Way Date Received 08/15/00 <br />' Stockton, CA 95205 Client Contact Tony Mikacich Date Extracted 08/15/00 <br />' Client P O Date Analyzed 08/15-08/16/00 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel <br /> EPA methods modified 8015 and 3550 or 3510 California RW 8 SF Ba Region)method GCFID(3550)or GCFID 3510 <br />' Lab ID Client ID Matrix TPH(d)+ %Recovery <br /> Surrogate <br />' 44941 MW-11A W ND 97 <br /> 44942 MW-11 B W 100,b 100 <br />' 44943 MW-12A W ND 99 <br /> 44944 MW-12B W 110,g 104 <br /> 44945 MW-13A W ND 104 <br /> 44946 MW-13B W ND 104 <br /> • 44947 EW-1 W 14,000,d,b,h 92 <br /> 44948 EW-2 W 3600,d 107 <br /> 1 <br /> t <br /> 1 <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,sod 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,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 tvleCanpbell 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 (?), f) <br /> one to a few isolated peaks present g) oil range compounds are significant h) lighter than water immiscible sheen is present 1) liquid <br /> sample that contains greater than--5 vol %sediment <br /> DHS Certification No 1644 _Edward Hamilton, Lab Director <br />