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COLUMBIA ANALYTICAL SERVICES,INC— <br /> QA/QC Report <br /> Client: EMCON Associates Service Request: 5941424 <br /> Project: TOSCO #11192!0952-090.02 Date Collected: 11/9,10/94 <br /> Sample Matrix: Water Date Received: 11/11/94 <br /> Date Extracted: NA <br /> Date Analyzed: 11/11/94 <br /> Surrogate Recovery Summary <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/8010 <br /> Percent Recovery <br /> Sample Name Lab Code 4-BromoAuorobeazene <br /> 11 192THP4W-36 S941424-009 104 <br /> 11192 THP3W-28 S941424-010 107 <br /> Method 13 lank 5941111-W13 105 <br /> CAS Acceptance Limits: 76-138 <br /> Approved By: _ (�.�t i d au-, - Date: 11-23-9 4/-_ <br /> suRuaalv9� <br /> Page 14 of 15 <br /> 4 nn 0 s,,...,.......t �.......... . [..., i..... rnlifnrnin Orit,'11 . 7olonl.....� AnA1A.%7.7A/1(1 . Cnv AnAIA17_O.'%r1A <br />