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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD: Cold Vapor Atomic Absorption <br /> QC Batch#: WHG980618 Date Analyzed: 06/17/98 <br /> Matrix: Water Quality Control Sample: E11560 <br /> Units: m <br /> PARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> m m _TF <br /> Lm %R m IL %R %R <br /> i Mercury i 245.1 i<0.0005i 0.0020 1 ND 1 0.0020 1 99 1 0.0019 i 95 1 4.1 1 66- 113 i <br /> Note: LCS and LCSD results reported for the following Parameters: <br /> None <br /> Acceptable LCS and LCSD results are reported when matrix interferences cause MS and MSD results to fall outside <br /> established QC limits. <br /> Definition of Terms: <br /> MB: Method Blank <br /> SA: Spike Added <br /> SR: Sample Result <br /> SP: Spike Result <br /> SP(%R) Spike%Recovery <br /> SPD Spike Duplicate Result <br /> SPD(%R) Spike Duplicate%Recovery <br />