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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 # WMS2000930 Date analyzed 09/30/00 <br /> Matrix Liquid Spiked Sample Blank Spike <br /> Units pg/L <br /> PARAMETER Method# SA SR SP SP RPD QC LIMITS <br />' pg/L lig/L Iug/L %R RPD %R <br /> X1,1-Dichloroethene 8240/8260 1 40 1 ND 345 1 86 ; N/A 1 25 F 50-150 <br /> I'Benzene ; 8240/8260 1 40 ; ND ; 413 ; 103 ; N/A 1 25 50-150 <br /> ;Tnchkoroetliene $24018260 ; 40 ND ; 362 ; J1 NIA ; 25 ; 50-150 <br /> ;Toluene 8240/8260 40 ND 471 1I8 NIA 25 50-150 <br /> 'Chlotobenzene8240/8260 ; 40 ND 447 i 112 NIA i 25 50-150 <br /> 1i i i i i i <br /> iSurrogores <br /> Mtbromofluoromethane 1 8240/8260 ; 1 104% ; 100% i 65-135 <br /> 'Toiuerie-d8 ; 8240/8260 ; ; 115% ; 108% 1 ; 65-135 <br />' ;4-Bromofluorobenzene 118240/8260 ; { 112% ; 113% ; ; ; ; 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(%R) Spike Duplicate%Recovery <br /> 1 <br /> r <br />�i <br /> • <br /> i <br /> 1' <br />