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Entech Analytical Labs,Inc. 525 Dei Rey Avenue, Suite E <br /> Sunnyvale, CA 94086 <br /> QUALI'T'Y CONTROL RESULTS SUMMARY <br /> Volatile Organic Compounds <br /> Laboratory Control Sample <br /> QC Batch 9: WMS2000828 Date analyzed: 08/38/00 <br /> Matrix: Liquid Spiked Sample: Blank Spike <br /> Units: l tg/L <br /> PARAMETER Method;# 1 SA SR SP SP SPD SPD RPD QC LIMITS <br /> Il$/L 99/1- 1191L %R Pg/L %R RPD %R <br /> 1,t- Dichloroethene 8240/3260 1 40 ; ND41.8 1 104 48.5 121 1 15.0 1 25 50-150 ; <br /> ;Benzene 8240/8260 1 40 ND 40.4 101 50.3 126 21.6 25 50-150 <br /> Trichloroethene 8240/8260 40 1 ND 39.2 98 49.1 123 22.6 25 50-150 <br /> Toluene 8240/8260 40 1 ND 1 38.6 97 43.3 1 108 11.5 1 25 50-150 <br /> I I , I I 1 I <br /> ;Chtarobenzene 1 8240/8260 140 1 ND 42.2 1 105 1 49.3 1 123 15.6 25 50-150 <br /> LSurrogaleS <br /> 1 i i o i o i i o i i i 1 ' <br /> Dibromot]uoromethane , 8240/8260 , , 94/o , 99/o , 105 Jo , I <br /> 65-1�5 1 <br /> (Toluene-d8 8240/8260 1 94% ; 92% 1 1 95% <br /> I I 65-135 <br /> 1 I I I 1 1 I <br /> :4-8romot]uorobenzene 1 8240/8260 1100% ; 103°Jo ; 99% i 65-135 l <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 />