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L <br /> ,,yA�., <br /> COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: EMCON Associates Service Request: S941510 <br /> Project: TOSCO#11193 10952-091.02 Date Collected: 11/22/94 } <br /> Sample Matrix: Water Date Received: 11/22/94 <br /> Date Extracted: NA f <br /> Date Analyzed: 11/29/94 <br /> 1 <br /> Surrogate Recovery Summary + <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/8010 <br /> I <br /> t <br /> f <br /> Percent Recovery <br /> Sample Name Lab Code 4-Bromofluorobenzene <br /> 11193-THP1 W-25 S941510-007 125 <br /> Method Blank S941129-WB 115 <br /> i <br /> F <br /> f <br /> r <br /> F <br /> i <br /> CAS Acceptance Limits: 76-138 <br /> 4 <br /> 1 <br /> Approved.By: 'i. Date: <br /> V_1V <br /> Page 15 of 16 <br />