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110 Second Avenue South,#ED7,Pacheco,CA 94553-5560 <br /> Mr-CAMPBELL ANALYTICAL INC. Telephone: 925-798-1620 Fax :925-798-1622 <br /> htlpa/www.Mccampbell.com E-mail: main@mccampbell.com <br /> Advanced GeoEnviromnentalDate Sampled:09/10/98 <br /> Client Project ID: Geweke <br /> Date Received: 09/11/98 <br /> 4005 North Wilson Way <br /> Stockton,CA 95205 Client Contact:Kevin McKibben Date Extracted: 09/11-09/15/98 <br /> [Client P.4: TDate Analyzed: 09111-09115198 <br /> Oxygenated Volatile Organics By GUMS <br /> EPA method 8260 modified <br /> Lab ID 94788 94789 94790 94791 <br /> MW6/9-10- MW7/9-10- MW8/9-10- MW9/9-10- Reporting Limit <br /> Client ID 98 98 98 98 <br /> Matrix W W W W S W <br /> Compound Concentration* ug/kg uglL <br /> Di-isopropyl Ether(DIPE) ND ND ND ND 5.0 1.0 <br /> Ethyl tert-Butyl Ether(ETBE) ND ND ND ND 5.0 1.0 <br /> Methyl-tert Butyl Ether(MTBE) ND ND ND ND 5.0 1.0 <br /> ten-Amyl Methyl Ether(TAME) ND ND ND ND 5.0 1.0 <br /> tert-Butanol ND ND '9.4 8.4 25 5.0 <br /> Surrogate Recoveries('%) <br /> Dibromolluoromethane 100 100 100 96 <br /> Comments: <br /> *water samples are reported in ug/1-soil and sludge samples in ug/kg,wipes in ug/wipe and all'ITCLP/STLC/SPLP extracts in ug/L <br /> ND 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 />