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40$4379356 COLUMBIA ANALYTICAL 950 Poe SEP 08 '94 16 33 <br /> COLUMBIA ANALYTICAL SERVICES,INC. <br /> ' QA/QC Report <br /> Clieat, EMCON Associates Service Regne - 5941001 <br /> Project: Federated-Franks Exxon 1 2520-100 01 Date Collected: 9/2/94 <br /> Sample Matrix: Water Date Received: 916/94 <br /> Date Extracted: 9/7/94 <br /> Date Al vied- 918194 <br /> Surrogate RecoverySwnivary <br /> ' <br /> Organochlorine Pesticides and Polychlonnated Biphenyls(PCBs) <br /> EPA Methods 3510/608 <br /> ' Percent Recovery <br /> Sample Name Lab Code Decachlarobiphenyl <br /> MW-4 S941001-001 47 <br /> ' Method Blank S940907-WS 80 <br /> 1 <br /> 1 I <br /> i <br /> ' CAS Acceptance Litnits 19.177 <br /> Approved By Date " <br /> 6URk/962774 <br /> Page 7 of 7 <br /> 1921 Ringwood Avenue • Son lose California 95131 • Telephone 4081437 2400 • Fox 408/437-9356 <br /> I <br />