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I 10 Second Avenue South,##D7,Pacheco,CA 94553 <br />' 4MCCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> • htt /h+,ww mccam bell c m E-mail main c@i mecampbell com <br />' Advanced GeoEnvironmental Client Project ID West Clay Properties Date Sampled 11/17/97 <br /> D <br />' 4005 North Wilson Way ate Received 11/18/97 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 11118-11119197 <br />' Client 0 Date Analyzed 11/18-11/21/97 <br /> DieseI Range(C10-C23)and Oil-Range(C18+) Extractable H3 di ocarbons as Diesel and Motor Oil* <br /> EPA methods modified 8015,and 3550 or 3510,California RWQCB(SF Bay Region)method GCF1D(3"50)or GCFID(3510) <br />' Lab ID Client ID Matrix TPH(d)' TPH(mo)' % Recovery <br /> Surrogate <br /> 83116 MW-1/11-17-97 W 200,d ND 100 <br />' 83117 MW-2111-17-97 W 2300,d 120 102 <br />' 83118 MW-3111-17-97 W 160,b ND 100 <br /> 83119 MW-4/11-17-97 W IND ND 104 <br />' 83120 MW-5/11-17-97 W ND i IND 101 <br /> 1 <br /> t <br /> 1 <br /> Reporting Limit unless otherwise Nib 50 ug/L 250 u-/L <br />' stated,ND means not detected above <br /> the reporting limit S 1 0 mg/kg 5 0 mg/kg <br /> "later samples are reported in ug/L,"ipe samples in ug/wipe,soil and sludge samples in mg/kg and all TCLP/STLC/SPLP extracts in <br /> uglL <br /> "cluttered chromatogram resulting in coeluied surrogate and sample peaks,of suiroi,ale peak is on eleNated baseline,or,surrogate has been <br />' diminished by dilution of ongmal extract <br /> *The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> . niterpretalion a)unmodified or weakly modified diesel is significant b)diesel range compounds ai a significant,no recognizable pattern,c) <br /> aged diesel9 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 gVificant, h) lighter than eater immiscible sheen is present, t) liquid <br /> sample that contains greater than—5 vol %sediment <br /> DHS Certification No 1644 /�� Edward Hamilton, Lab Director <br />