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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# WMS000411 Date analyzed 04/11/00 <br /> Matrix Liquid Spiked Sample Blank Spike <br /> Units lig/L <br /> ARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> lag/L 49/L 119/L %R 1u9/1, %R RPD ; %R <br /> 1,1-Dichloroethene 8240/8260 1 40 ND 40 9 1 102 1 406 1 102 1 0 7 1 25 50-150 <br /> I 1 1 1 I 1 1 1 1 1 1 1 <br /> 'Methyl-tert-butyl ether 1 $240/8260 1 40 1 ND 1 39 8 1 100 404 101 I 1 1 5 1 1 25 50-150 <br /> !Benzene $240/8 1 I 1 I I 1 i 1 I 1 <br /> 260 40 ND 42 2 106 41 9 105 0 7 25 50-150 , <br /> 1 I 1 1 1 1 1 1 1 1 1 1 <br /> 1Tnchlomethene 8240/8260 1 40 ND 1 41 61 104 1 444 1 111 1 65 1 25 1 50-150 <br /> 1 1 1 1 1 1 1 1 1 i 1 1 <br /> 'Toluene 8240/8260 1 40 1 ND 1 40 7 1 102 1 404 1 101 1 0 7 1 25 1 50-150 1 <br /> 8240/8260 1 40 ND 42 8 <br /> 1 Chlorobenzene 107 421 1 105 1 6 25 50-150, 1 <br /> 1 <br /> 1 sumSates <br /> ;Toluene-d8 8240/8260 93% 93% 93% 65-135 <br /> 1 1 ' 1 0 1 0 1 ' 103% 1 1 i i 1 <br /> IDibromafluoromethane 1 82401$260 1 1 99/o , 93% , , , 1 , 1 <br /> 65-135 1 <br /> 14-Bromofluorobenzene 1 8240/8260 1 1 90% 1 94% 1 1 98% 1 1 1 1 65-135 1 <br /> ,'MTBE-d3 1 8240/8260 1 1 95% 1 96% 1 1 97% 1 1 ' 1 65-135 <br /> Defintrion 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 />• <br />