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I. <br /> I, <br /> # Quality Control Results <br /> z <br /> I <br /> Client: TRC 5ofutions Job Number: 720-520-1 <br /> IF <br /> Laboratory Control! <br /> Method. 8260B j <br /> Laboratory Control Duplicate Recovery Report - Batch: 720-2246 Preparation: 5030B <br /> LCS Lab Sample ICLCS 720-224619 Analysis Batch: 720-2246 Instrument ID: Varian 3900A <br /> Client Matrix: J.Water Prep Batch: NIA Lab File ID: c:Isatumwsldata120051 W, <br /> Dilution: 1.0 Units: ug/L Initial Weight/Volume: 10 mL <br /> Date Analyzed: 11112212005 0648 Final Weight/Volume: 10 mL <br /> Date Prepared: X11/22/2005 0648 <br /> ' __.._.. .............-- ---- <br /> F <br /> LCSD Lab Sample',ICLCSD 720-2246/8 Analysis Batch: 720-2246 Instrument ID: Varian 3900A <br /> Client Matrix: iWater Prep Batch: NIA Lab File ID: c:lsatumwsldata1200511111; <br /> Dilution: 1.0 Units:ug/L Initial Weight(Vofume: 10 mL <br /> Date Analyzed: '11/22/2005 0709 Final Weight/Volume: 10 mL <br /> Date Prepared: 1112212005 0709 i <br /> % Rea <br /> Analyte LCS LCSD Limit RPD RPD Limit LCS Qua] LCSD Qud <br /> Benzene 90 91 69 - 129 2 25 r <br /> MTBE 90 95 65 - 165 5 25 <br /> Toluene 98 97 70 - 130 1 25 <br /> Surrogate �' LCS % Rec LCSD % Rec Acceptance Limits <br /> Toluene-d8107 107 77 - 121 <br /> is , <br /> 1,2-Dichloroethane-d4 96 98 73 - 130 <br /> f <br /> I <br /> i <br /> I <br /> YI i <br /> � 44 <br /> ] <br /> i <br /> ' I <br /> r <br /> f. <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> STL San Francisco Page 13 of 19 <br /> i I <br /> i! <br />