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4084379356 COLUMBIA PNALYTICr�L 950 P27 SEP 08 '94 16 32 <br /> COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC RMort - <br /> Client. EMCON Associates Service Regveot- S941001 <br /> Project Federated-Fra &s Exxon/2 420-100 01 Date Collected- 912194 <br /> Sample Matn= Water Date Received: 916194 <br /> Date Extracted: NA <br /> ' Date Analyzed: 917194 <br /> Surrogate Recovery Sunimal) <br /> Halogenated and Aromatic Volatile Orgamc Ccmpounds <br /> ' EPA Methods 5030/6011602 <br /> 1 II <br /> Percent Recovery <br /> ' Sample Name Lab Code 4-Bromofluorobenzene <br /> MW4 5941001-001 104 <br /> ' Method Blank S940907-W13 104 <br /> 1 <br /> CAS Acceptance Linuts 76-138 <br /> Appmved By Date <br /> SUR1106M4 <br /> Page 6 of 7 <br /> ' 1921 Ringwood Averwe San lose, Colifornlo 45131 • Telephone 4081437.7400 ■ Fox 4081437 9356 <br />