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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 9: WMS2001007 Date analyzed: 10/07/00 <br />' Matrix: Liquid Spiked Sample: Blank Spike <br /> Units: pg/L <br />' PARAMETER Method# SA SR ': SP SP SPD SPD RPD QC LIMITS <br /> 1;5� pg/L µglL %R pU/L %R RPD %R <br /> 1,E-DichIoroethene 8240/8260 40 ND 33.9 85 34.0 85 0.3 25 50-150 <br /> ;Benzene 8240/8260 40 ND 39.6 99 l 39.8 Ill 11.4 25 50-150 ; <br /> 1 1 1 r 1 1 1 <br /> ' 8240/8260 40 ND 45.2 113 l 44.4 108 4.3 25 50-150 <br /> ,Trichloroethene + <br /> I I 1 , 1 1 + 1 <br /> Toluene 8240/8260 40 1 ND 43.0 108 l 43).3 1 103 , 4.0 1 25 50-l50 r <br /> ' ' 8240/8260 40 1 ND 41.8 1 1.05 1 41.3 103 l 1.2 25 50-150 <br />' �Chlorobenzene + <br /> :Surrogates <br /> Dibromofluoromethane 8240/8260 114°% ; 113% i 121°% 1 65-135 <br /> 1 1 <br />' .Toluene-d8 8240/8260 1 l 134% 1 126% l 132% l 65-135 1 <br /> 1 I 1 r I 1 ' <br /> 65-135 <br /> :4-Bromofluoroben2ene 1 8240/8260 1 81% 97% 94% <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 /> 1 <br /> 1 <br />