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F } <br /> k <br /> Quality Control Results <br /> f <br /> L_ _ <br /> tient; San Joaquin Company Inc Job Number. 720-2949-1 <br /> i° <br /> Matrix Spike/ Method: 8260B <br /> Matrix Spike Duplicate Recovery Report-Batch: 720-7380 Preparation: 5030B <br /> U111. <br /> MS Lab Sample ID: 720-2949-3 Analysis Batch: 720-7380 Instrument ID: Satum 2100 <br /> Client Matrix: Water Prep Batch: NIA Lab File ID: c:lsaturnwsldata1200604V <br /> Dilution: 1.0 Initial Weight/Volume: 10 mL <br /> Date Analyzed: 04/05/2006 1614 Final Weight/Volume: 10 mL i <br /> Date Prepared: 04/05/2006 1614 <br /> MSD Lab Sample ID: 720-2949-3 Analysis Batch: 720-7380 Instrument ID. Saturn 2100 <br /> Client Matrix: Water Prep Batch: NIA Lab File ID: c:lsaturnwsldata120060410i <br /> Dilution: 1.0 Initial Weight/Volume: 10 mL <br /> ' Date Analyzed: 04/05/2006 1640 Final Weight/Volume: 10 mL <br /> Date Prepared: 04/05/2006 1640 <br /> % Rec. <br /> L4 Analyte MS MSD Limit RPD RPD Limit MS Qual MSD Qual <br /> Benzene 97 100 69- 129 2 20 <br /> MTBE 123 108 65- 165 12 20 <br /> - ,-Toluene 107 104 70-130 3 20 I <br /> Surrogate MS% Rec . MSD%Rec Acceptance Limits <br /> Toluene-d8 97 100 77-121 4 <br /> 1,2-Dichloroethane-d4 109 107 73-130 s <br /> A <br /> r l <br /> . l <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> STL San Francisco Page 41.of 54 1 <br /> k <br /> t 1 <br />