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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 µg/kg <br /> PARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> N8/kg µg/kg lag/kg %R !a$/kg %R RPD <br /> 11,1-Dichloroethene ; 8240/8260 25 ND 26 ; 103 ; 28 112 78 1 25 70-130 I <br /> 1 { <br /> 'Benzene ` 8240/8260 1 25 1 ND ' 25 ' 98 I 26 ! 1 1 105 1 1 6 3 1 25 ` 70-130 1 <br /> k 1 1 1 1 k l <br /> 1 1 1 1 1 <br /> 1 1 1 1 1 1 i i 1 1 1 1 <br /> ITrichloroethene 8240/8260 25 ND 29 I 114 32 128 113 25 70-130 ; <br /> 'Toluene I 8240/8260 I 25 I ND I 25 I 101 I 26 I 104 ; 3 5 I 25 70-130 I <br /> IChlorobenzene I 8240/8260 I 25 I ND 1 26 I 102 I 27 I 108 I 53 I 25 I 70-130 I <br /> 1 1 1 1 1 1 1 I 1 1 1 <br /> 1 i 1 1 1 1 1 1 1 t 1 i <br /> 1 1 { 1 1 { 1 1 I 1 1 1 <br /> I S",ogater ! 1 1 1 1 1 1 I 1 1 1 <br /> 1 1 1 1 1 1 1 I 1 1 1 <br /> ;Dibromofluoromethane ; 8240/8260 104% ; 118% ; 123% ; ; 65-135 <br /> 11,2-Dichloroethane to 8240/8260 i 104% 1 132% i 134% j i 65-135 It <br /> { 1 I 1 1 1 1 1 1 1 1 1 <br /> Toluene-d8 I 8240/8260 I I 98% I 96% I I 95% I I I I 65-135 I <br /> 8240/8260 ° ° 91% I 65-135 I <br /> I4-Brornofluorobenzene 1 { k 89/0 1 92/0 1 1 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 />