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i <br /> 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www cam bell corn E-mail main@mccampbell cam <br /> Ground Zero Analysis,Inc Client Project ID #951186,Knowles Date Sampled 02/10-12/99 <br /> 1714 Main Street Rock Date Received 02/17/99 <br /> ' Escalon,CA 95320 Client Contact John Lane Date Extracted 02/19-02/22/99 <br /> ' Client P O Date Analyzed 02/19-02/22/99 <br /> Oxygenated Volatile Organics By GUMS <br /> EPA method 8260 modified <br /> ' Lab ID 03591 03592 03593 03594 <br /> Reporting Limit <br /> Client ID KR MW-1 KR MW-3 KR MW-4 KR MW-11 <br /> ' Matrix W W W W S w <br /> Compound Concentration* ug/kg ug/L <br /> Di-isopmpyt Ether(DIPS) ND ND<65 ND<65 22 50 10 <br /> ' Ethyl tert-Butyl Ether(ETRE) ND ND<65 ND<65 ND 50 1 0 <br /> Methyl-tert Butyl Ether(MTBE) ND 1600 1700 ND 50 10 <br /> tert-Amyl Methyl Ether(TAME) ND ND<65 ND<65 ND 50 10 <br /> tert-Butanol 310 ND<330 ND<330 18 25 so <br /> ' Surrogate Recoveries(%) <br /> ' Dibromofluoromethane 99 100 100 99 <br /> Comments <br /> *water samples are reported in ug1L,soil and sludge samples in ug/kg,wipes in ug/wipe and all TCLP 1 STLC I SDLP extracts in ug/L <br /> ND means not detected above the reporting limit,N/A means surrogate not applicable to this analysts <br /> ' (h)lighter than water imrmscible sheen is present,(r)liquid sarrgile 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 />