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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client \RCO Piodu(.ts Conip.tnv Servile Request 59700356 <br /> P:alcLt X076 LOD1/21 77�-220 002/TO#19350 00 Date Collected. 2/27197 <br /> Sample Matl ix \\"Itcl D.ite Received 3/3/07 <br /> Date Extra1-ted NA <br /> Date Analv7ed 3/6/97 <br /> Matrix Spike/Duplicate Matri\ Spike Smnmary <br /> BTE <br /> EPA Methods 5030/8020 <br /> Units ug/L (ppb) <br /> Sampie Name <br /> Lab Code X97001)56-00 1 MS DMS <br /> Percent ReLovery <br /> CAS Relatwe <br /> Spike LL%(-1 Sample Spike Result Acceptance Percent <br /> AnahtL %IS DMS RLkult MS DMS MS DMS Limits D►ffeiLnLe <br /> Bcnicnc 25 25 ND 24 25 96 100 75-135 4 <br /> Toluene 25 25 ND 24 24 96 96 73-136 <t <br /> Et1i-,lbcnicnc 25 25 ND 23 24 92 96 69-142 4 <br /> I <br /> I <br /> Page 7 <br />