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i <br /> Entech Analytical Labs, Inc 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> I <br /> Volatile Organic Compounds <br /> Laboratory Control Sample <br /> QC Batch# SMS2000922A Date analyzed 09122 -09/23/00 <br /> Matrix Solid Spiked Sample Blank Spike <br /> Units pg/kg <br /> PARAMETER Method # SA SR SP SP SPD SPD RPD QC LIMITS <br /> µg/kg Pg/kg pg/kg %R pg/kg %R RPD %R <br /> ;[,I-Dichloroethene 1 8240/8260 25 ; -ND 1 24 94 26 ; 103 89 25 50-150 <br /> 48enzene 8240/8260 25 ND 1 24 96 24 94 21 25 50-150 <br /> I r 1 1 1 1 1 1 r 1 I + <br /> 1Tnchloroethene 8240/8260 25 ND 24 95 23 92 34 25 50-150 ; <br /> ;Tol8240/8260 25 1 ND 25 100 24 97 32 25 <br /> uene 50-150 F <br /> 1 1 I 1 1 1 1 1 I I <br /> 1Chlorobenzene 8240/8260 25 ND 26 103 25 101 2 4 25 50-150 <br /> 1 <br /> ',surrogates <br /> 1 1 1 <br /> ;Toluene AS 8240/8260 109% ; 97% 100% ; 65-135 <br /> I 1 1 1 1 I 1 1 1 1 1 <br /> 1Dibromotluoromethane 65-l35 <br /> 1 8240/8260 1 94% 1 109% 1 102% 1 1 65-135 1 <br /> ' 1 1 I 1 1 <br /> 14-BroinoFluombenzene 8240/8260 91% 98% 1107% 1 ; , <br /> 11,2-Dichloroethane-d4' 8240/8260 102% ; 111% ; ; 110% ; 65-135 <br /> Calculated Recoveries Outside of Recovery Limits <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 /> NC Not Calculated <br /> r <br />