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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# SMS 1000926 Date analyzed 09/27/00 <br /> Matrix Solid Spiked Sample Blank Spike <br /> Units gg/kg <br /> PARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> Mg/kg 4g/kg µg/kg %R lLg/kg %R RPD 11 1 <br /> 1 D <br /> 11,1-Dichloroethene l 8240/8260 25 1 N 1 19 6 l 78 215 1 86 1 92 1 25 1 65-135 <br /> 1 I 1 1 1 1 1 1 1 1 1 I <br /> ;Benzene 8240/8260 25 ND 202 81 1 207 1 83 1 24 1 25 1 65-135 ; <br /> 1 1 1 1 I I I 1 I 1 1 1 <br /> ;Trichloroethene 1 8240/8260 : 25 : ND 1 20 1 1 80 1 212 85 1 53 1 25 1 65-135 1 <br /> 1 1 1 1 1 F 1 1 1 1 I 1 <br /> 'Toluene ' 8240/8260 ' 25 ' ND 1 21 0 1 84 1 213 ' 85 1 14 25 1 65-135 <br /> ' 8240/8260 ' 25 ' ND 1 208 1 83 ' 213 1 85 ' 24 1 25 ' 65-135 ' <br /> IChlorobenzene 1 <br /> 1 r 1 1 1 1 I I 1 1 I 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> '$u'ogates I I I 1 1 1 1 1 1 1 1 <br /> G! I 1 1 1 1 I l I 1 1 1 <br /> I I 1 1 1 1 1 1 1 1 1 1 <br /> :Toluene-d8 1 8240/8260 1 1 102% 1 98% 1 : 96% 1 ' ' 1 65-135 : <br /> 'Dibromofluoromethane 1 8240/8260 1 1 97% ' 108% 1 ' 110% 1 ' 1 65-135 ' <br /> W-Bromofluorobenzene 1 8240/8260 1 1 98% 1 111% i 1 113% 1 1 65-135 ' <br /> :MTBE-d3 1 8240/8260 1 72% 1 91% 93% 1 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 /> NC Not Calculated <br /> i <br />