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kwd <br /> Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> Volatile Organic Compounds <br /> Laboratory Control Sample <br /> QC Batch#: SMS000418 Date analyzed: 04/18/00 <br /> Matrix: Solid Spiked Sample: Blank Spike <br /> Units: µg/kg <br /> PARAMETER Method# SA SR SP SP SPD 1 SPD RPD QC LIMITS <br /> E µmg µg/kg µ g ? %R Pg/kg %R RPD <br /> 11,1-Dichloroethene 8240/8260 25 ND 22.1 88 21.6 86 2.3 25 65-135 <br /> :Benzene 8240/8260 25 ND 25.3 101 25.4 102 0.4 25 65-135 ; <br /> ;Trichloroethene 8240/8260 25 ND 25.0 100 24.7 99, 1.2 25 65-135 <br /> Toluene 1 8240/8260 25 ND 1 25.0 100 25.4 1 102 1 1.6 1 25 1 65-135 <br /> !Chlorobenzene ' 8240/8260 1 25 1 ND 1 25.0 1 100 1 25.1 1 100 1 0.4 1 25 1 65-135 1 <br /> � <br /> :Toluene-d8 1 8240/8260 1 1 105% 1 98% 1 1 101% 1 1 1 1 65-135 1 <br /> :Dibromofluoromethane 1 8240/8260 : 1 101% 1 96%, 1 1 98% 1 1 1 1 65-135 <br /> 14-Bromofluorobenzene 1 8240/8260 1 1. 99% 1 95% 1 1 97% 1 1 1 1 65-135 1 <br /> 11,2-Dichloroethane-d4 8240/8260 1 1 109% 1 97% 97% 1 1 65-135 1 <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> SA: Spike Added <br /> SR: Sample Result <br /> RPD(%): Duplicate Analysis-Relative Percent Difference <br /> SP: Spike,Result <br /> SP(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike Duplicate%Recovery <br /> NC: Not Calculated <br />