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1 <br /> Entech Analytical Labs,Inc. 525 Dei 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: �19/kg <br /> ' PARAMETER Method# SA i SR 1 SP SP SPD SPD RPD QC LIMITS <br /> >1P�8 . pig ��g %R mAg i %R RPD <br /> l,l-Dictiloroethene ; 8240/8260 25 ; ND ; 22.1 88 ; 21.6 ; 86 2.3 ; 25 1 65-135 <br /> 1Benzene l 8240/$260 25 I l ND 25.3 101 25.4 102 0.4 25 65-135 ; <br /> 1 1 8240/8260 25 ND 25.0 100 24.7 99 1.2 25 65-135 <br /> Trichloroethene , <br /> I 1 1 1 1 1 1 1 1 1 I I <br /> Toluene 1 8240/8260 1 25 1 ND 25.0 1 100 1 25.4 102 1 1.6 1 25 l 65-135 <br /> ' <br /> I Ctilorobenzene 8240/8260 1 25 1 ND 1 25.0 100 25.1 1 100 1 0.4 1 25 1 65-135 <br /> 1 <br /> 1 1 1 I 1 1 1 1 1 1 I I <br /> :Surrogates 1 I 1 1 1 I I 1 1 I I <br /> S8urro ates 1 I 1 I <br /> 1 I 1 I 1 I 1 I 1 1 l <br /> ;Toluene Al $24018260 105% 1 1 98% 1 101°/a ; 65-L35 ; <br /> a 1 1 1 I I 1 1 I 1 <br /> 1Dibromofluoromethane 1 $240f8260 1 101% 96% 98% 65-135 <br /> I I I a 1 I , 1 I I f I <br /> 4-Bromofluorobenzene 1 8240/8260 1 1 99% 1 95% 1 97% 1 65-135 <br /> I 1 1 1 , 1 1 I I I , I <br /> t,2-Dichloroethane-d4 8240/8260 109% 97% 97% 65-135 <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(°/DR): Spike Duplicate%Recovery <br /> NC: Not Calculated <br /> 1 <br />