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I 10 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> Y McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax : 925-798-1622 <br /> 24 hUp://www.mccamphell.com E-mail:main@mccampbell.com <br /> Date Sampled: 12121198 <br /> Advanced GeoEnvironmental Client Project ID: Geweke <br /> 4005 North Wilson Way Date Received: 12122198 <br /> Stockton, CA 95205 Client Contact: Kevin McKibben Date Extracted:01/02-01104199 <br /> Client P.O: Date Analyzed:01/02-01104199 <br /> Oxygenated Volatile Organics By GC/MS <br /> EPA method 8260 modified <br /> Lab ID 00784 00785 00786 00787 <br /> MW-6/ MW-7/ MW-8/ MW-9/ Reporting Limit <br /> Client ID 12-21-98 12-21-98 12-21-98 12-21-98 <br /> Matrix W W WW S W <br /> Compound Concentration* ug/kg uglL <br /> Di-isopropyl Ether(D1PE) ND ND ND<5 ND<5 5.0 1.0 <br /> Ethyl tert-Butyl Ether(ETRE) ND ND ND<5 ND<5 5.0 1.0 <br /> Methyl-tert Butyl Ether(MTBE) ND ND ND<5 ND<5 5.0 1.0 <br /> tert-Amyl Methyl Ether(TAME) ND ND ND<5 ND<5 5.0 1.0 <br /> tent-Butanol ND ND ND<25 ND<25 25 5.0 <br /> Surrogate Recoveries(%) <br /> Dibromofluoromethane 99 98 101 101 <br /> Comments: <br /> *water samples are reported in ug/L,soil and sludge samples in ug/kg,wipes in ug/wipe and all TCLP/STLC/SPLP extracts in ug/L <br /> IT'D means not detected above the reporting limit;NIA means surrogate not applicable to this analysis <br /> (h)lighter than water immiscible sheen is present;(i)liquid sample that contains greater than--5 vol.%sediment;0)sample diluted due to <br /> high organic content <br /> DHS Certification No. 1644 %/ Edward Hamilton, Lab Director <br />