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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Ohent AMERCO Real Estate Company Service Request L2003110 <br /> Project U-1-laul/#709-50/002-70950-02 Date Collected NA <br /> Sample Matrix Water Date Received. NA <br /> Date Extracted NA <br /> Date Analyzed NA <br /> Surrogate Recovery Summary <br /> Volatile Organic Compounds <br /> Prep Method EPA 5030 Units PERCENT <br /> Analysis Method 8260B Bans NA <br /> Test P e r c e n t R e e o v e r y <br /> Sample Name Lab Code Notes Dlbromofluoromethane Toluene-138 4-Bromofluorobenzene <br /> MW-IB-900 L2003110-001 93 98 92 <br /> MW-2B-900 L2003110-002 93 99 95 <br /> MW-3B-900 L2003110-003 98 101 95 <br /> Method Blank L201005-MB1 93 97 94 <br /> Lab Control Sample L201005-LCS I 92 97 92 <br /> Duplicate Lab Control Sample L20I005-DLCS 1 90 94 91 <br />� i <br /> t <br /> CAS Acceptance Limits 70-130 88-110 86-115 <br /> Approved By Date fl)�(0/0() <br /> 03110VOA AHI-SUR3 to! 100 9260WOXV XLT <br />