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1 i <br /> COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client CMLON Service Request 59900683 <br /> Project Apa(-Iie Plaoicti/22640-100 001 Date Collected NA <br /> Sample Matrix Waiter Date Received NA <br /> Date Extracted NA <br /> Date Analyzed NA <br /> Surrogate Recovery Summary <br /> Fuel Oxygenates <br /> Prep Method NONE Units PERCENT <br /> Analysis Method 8260 Basis NA <br /> Test P e r c e n t R e c o v e r y <br /> Sample Name Lab Code Notes Dibromofluoromethane Toluene-138 4-Bromofluorobenzene <br /> HP-1(70) S9900681-014 105 110 112 <br /> HP-1(100) S9900681-015 104 106 112 <br /> HP-2(64) S9900693-016 107 108 110 <br /> HP-2(76) S9900691-017 106 108 111 <br /> HP-2(90) S9900683-018 108 108 111 <br /> HP-2(102) 59900683-019 106 111 Sl 118 SI <br /> Method Blank(M SDI) S990304-WB1 106 107 108 <br /> Method Blank(MSDI) 5990304-WB2 106 108 110 <br /> EPA Acceptance Limits 86-118 89-110 86-115 <br /> SI Surrogate recovery out of control limits due to matrix interference <br /> i <br /> I <br /> suRIM20597p <br /> Page 51 <br />