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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> • Client AMERCO Real Estate Company Service Request L20031 10 <br /> Project U-Haul/#709-501002-70950-02 Date Collected NA <br /> Sample Matrix Water Date Received NA <br /> Date Extracted. NA <br /> ISurrogate Recovery Summary Date Analyzed: NA <br /> MTBE,BTEX and TPH as Gasoline <br /> Prep Method EPA 5030 Units PERCENT <br /> Analysis Method 8023B/8015M Basis NA <br /> Test Percent Recovery <br /> Sample Name Lab Code Notes 4-Bromofluorobenzene 4-Bromofluorobenzene <br /> WW-900 L2003110-010 94 88 <br /> Method Blank L201003-MB 1 93 102 <br /> Batch QC L2003134-001MS 98 46 <br /> Batch QC L2003134-OOIDMS 96 95 <br /> E • <br /> I <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> CAS Acceptance Limits 60-130 60-140 <br /> 1 <br /> Approved By Date <br /> n a o0 <br /> 03110VOHPEI 5lllt2(2) 0119100 Page No <br />