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�I <br /> Cw Quality Control Results <br /> Client: San Joaquin Company Inc <br /> Job Number: 720-1182-1 <br /> Laboratory Control/ Method: 8260B <br /> Laboratory Control Duplicate Recovery Report-Batch: 720-4022 Preparation:5030B <br /> i <br /> LCS Lab Sample ID:LCS 720-0022115 Analysis Batch: 720-4022 Instrument ID: Saturn 2100 <br /> Client Matrix: Water Prep Batch: NIA Lab File ID: d:ldata120060110106061ds-v <br /> Dilution: 1.0 <br /> Units: u IL <br /> 9 Initial Weight/Volume: 10 mL <br /> Date Analyzed: 01/06/2006 1831 Final Weight/Volume: 10 mL <br /> Date Prepared: 01/06/2006 1831 <br /> LCSD Lab Sample ID:LCSD 720-4022110 Analysis Batch: 720-4022 Instrument ID: Saturn 2100 <br /> Client Matrix: Water Prep Batch:NIA Lab File ID: d:ldata1200601101060611d-wi <br /> EI Dilution: 1.0 Units:ug/L Initial Weight/Volume: 10 mL <br /> I Date Analyzed: 01/06/2006 1857 Final WeightlVolume: 10 mL <br /> I Date Prepared: 01/06/2006 1857 <br /> '1 <br /> %Rec. <br /> Analyte LCS LCSD Limit RPD RPD Limit LCS Qual LCSD Qual <br /> i Benzene 94 94. . 69-129 0 - 25 <br /> MTBE 93 96 65-165 3 25 <br /> Toluene 91 90 70-130 1 25 <br /> E <br /> LC� <br /> ` Surrogate LCS% Rec LCSD° <br /> /° <br /> 5 Rec Acceptance Limits <br /> ., Toluene-d8 98 100 <br /> 77-121 <br /> 1,2-Dichloroethane-d4 88 86 73- 130 <br /> a <br /> i <br /> � j <br /> j <br /> I <br /> I , <br /> I <br /> Calculations are performed before rounding to avoid round-off errors in calculated results- <br /> STL San Francisco Page 14 of 17 <br /> � 1 <br />