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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# SGCMS990916 Date analyzed 09/16/09 <br /> Matrix Soil Spiked Sample Blank Spike <br /> Units !ug/kg <br /> PARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> µg/kg Fig/kg !fig/kg %R µg/kg %R RPD <br /> 11,1-Dichloroethene l 8240/8260 25 1 ND ,1 26 103 1 28 l 112 78 25 1 70-130 <br /> 1 1 1 1 1 1 1 1 1 1 1 <br /> ;Benzene 8240/8260 25 ND 25 98 26 105 63 25 70-130 ; <br /> 1 i 1 1 1 1 1 1 I 1 1 1 <br /> 1Tnchloroethene 8240/8260 25 ND 29 114 32 128 113 25 70-130 ; <br /> 1 1 1 1 1 1 1 I 1 1 1 1 <br /> Toluene 8240/8260 25 ND 25 101 26 104 35 1 25 1 70-130 1 <br /> 1 f 1 1 1 1 I 1 1 i 1 1 <br /> 1 Chlorobenzene f <br /> 8240/8260 25 I ND l 26 1 102 27 1 108 1 53 1 25 1 70-130 1 <br /> 1 1 1 1 f 1 I i 1 1 I 1 <br /> 'Surrogates <br /> 1 1 f 1 I 1 1 1 1 1 1 ! <br /> 1 1 1 I I 1 1 1 1 1 I <br /> 1Dibromofluoromethane 8240/8260 104% 41 118% ; 123% ; 65-135 ; <br /> 1 1 1 1 i 1 1 1 F 1 1 1 <br /> 11,2-Dtchloroethane 1 8240/8260 104% ; 132% 1 134% 1 65-L35 <br /> 1 1 1 1 1 1 I 1 1 1 1 i <br /> /Toluene-d8 1 8240/8260 1 1 98% 1 96% 1 1 95% 1 1 1 ' <br /> i 1 1 65-135 1 <br /> l4-Bromofluorobenzene 1 8240/8260 11 89% 1 92% 1 1 91% 1 1 1 1 65-135 1 <br /> 1 I 1 1 1 1 I 1 1 1 1 1 <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 />