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. Quality Control Results <br /> Client Philips Environmental Services Corp Job Number 720-450-1 <br /> Laboratory Control/ Method 8260B <br /> Laboratory Control Duplicate Recovery Report-Batch 720-2017 Preparation 5030B <br /> LCS Lab Sample ID LCS 720-201717 Analysis Batch 720-2017 Instrument ID Vanan 3900A <br /> Client Matrix Water Prep Batch NIA Lab File ID c lsatumwsldata1200511\1 <br /> Dilution 1 0 Units ug/L Initial Weight(Volume 10 mL <br /> Date Analyzed 11/17/2005 0652 Final Weight/Volume 10 mL <br /> Date Prepared 11/17/2005 0652 <br /> 1 LCSD Lab Sample ID LCSD 720-201716 Analysis Batch 720-2017 Instrument ID Varian 3900A <br /> Client Matrix Water Prep Batch NIA Lab Fife ID c lsaturnwsldata1200511\111 <br /> Dilution 10 Units ug/L Initial Weight/Volume 10 mL <br /> Date Analyzed 11/17/2005 0713 Final Weight/Volume 10 mL <br /> Date Prepared 11/17/2005 0713 <br /> 1 %Rec <br /> Analyte LCS LCSD Limit RPD RPD Limit LCS Qual LCSD Qual <br /> Benzene 84 85 69- 129 1 25 <br /> MTBE 78 79 65- 165 2 25 <br /> Toluene 91 90 70- 130 1 25 <br /> Surrogate LCS% Rec LCSD% Rec Acceptance Limits <br /> Toluene-d8 110 111 77- 121 <br /> 1,2-Dichloroethane-d4 94 98 73- 130 <br /> f� <br /> Calculations are performed before rounding to avoid round-off errors in calculated results <br /> STL San Francisco Page 25 of 34 <br />