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r ✓ <br /> COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report <br />. Client EMCON Associates Servlc(, Reque%t 5941494 <br /> Protect TOSCO # 11 l94 /0052-092 02 Date Callccted 11/17194 <br /> Sample Matrix Water Date Received 11/21/94 <br /> Date Extracted. NA <br /> Date Analyzed 11/22/94 <br /> Surrogate Recovery Summary <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/8010 <br /> Percent Recovery <br /> Sample Name Lab Code 4-Bromofluorobenzene <br /> 11194-HPI-W 5941494-001 89 <br /> 11194-HP2-W S941494-002 109 <br /> 11194-HP3-W S941494-003 82 <br /> Method Blank S941122-WB 99 <br /> CAS Acceptance Limits 76-138 <br /> Approved By l �' Date <br /> SURIM62994 <br /> Page 9 of 9 <br />