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Entech Analytical Labs,Inc. 525 Del Rev Avenue,Suite E <br /> Sunnyvale, C4,94086 <br /> QUALITY CONTROL RESULTS SUINIMARY <br /> Volatile Organic Compounds <br /> Laboratory Control Sample <br /> QC Batch 9 NV.MS000212 Date analyzed 02112Y00 <br /> Matnr Liquid Spiked Sample Blank Spike <br /> Units AwL <br /> PARAMETER Method 4 SA SR SP SP SPD SPD RPD QC LIMITS <br />' uar/L 4g/L lag/L %R pg/L %R RPD %R i <br /> 11,1-Dlchloroethene 3240/8260 1 40 1 ND 362 91 380 95 1 49 25 50-150 <br /> r <br /> 4 <br /> !Methyl-ten-butyl ether 1 8240/8260 1 40 ; ND 348 1 87 35 8 90 ; 2 8 25 1 50-150 1 <br /> 1 <br /> 1Benzene 824018260 40 1 ND 34 8 100 1 408 ; 102 1 2 5 25 1 50-150 ; <br /> lTnchloroethene 8240/8260 40 1 ND ; 402 1 101 420 105 1 4 4 ; 25 50-150 1 <br /> Foluene 3240/8260 l 40 1 ND 1 39 7 99 409 102 1 3 0 25 50-150 <br /> i <br /> 1 1 [ 1 1 1 1Chlorobenzene 8240/8260 40 ND 38 7 97 39 5 1 1 1 1 1 <br /> 11 99 1 2 0 ' 25 50-150 ' <br /> 'Surrogates p <br /> 'Surrogates <br /> Dibromofluoromethane l 8240/5260 1 97% 90% l 101% ; 1 65-135 <br /> 1 <br /> ;MTBE-d3 3240/8260 1 102°1° 88% 1 96% 1 1 l 65-135 l <br /> Toluene d8 1 5240/8260 1 95% 94% 1 1 100% l 1 1 65-135 l <br /> 1 1 1 1 1 1 1 1 <br /> 14-Bromofluorobenzene 1 8240/8260 1 1 97% 1 97% 101% 65-135 <br /> 1 1 7 1 l <br /> lie <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 />