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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# SMS2000928 Date analyzed 09/28/00 <br /> Matrix Solid Spiked Sample Blank Spike <br /> Units gg/kg <br /> ARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> 49/kg 99/kg Er g %R µgAg %R RPD %R <br /> ;1,1-Dichloroethene ; 8240/8260 ',- -15 ND 1 25 ; 101 23 90 113 25 p 50-150 ; <br /> Benzene 8240/8260 25 ND 27 106 22 88 18 5 25 50-15011 <br /> 7nehloroethene 8240/8260 25 ND 26 105 22 88 17425 25 � 50-150 ; <br /> ;Toluene 8240/8260 t 25 ND 25 1 100 1 22 89 118 i 25 50-150 <br /> 1Chlorobenzene 8240/8260 25 1 ND 24 1 96 22 86 114 25 1 50-150 I <br /> , <br /> , <br /> lsil170gR12S i i i i t r ' t i i � <br /> :Toluene A8 8240/8260 p 111% ; 106% ; 114% ; 65-135 <br /> Pbromofluoromethane R 8240/8260 111% 106% ; 114% 65-135 <br /> ;411 <br /> -Sromofluorobenzene 1 8240/8260 95% 105% 107% ; 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 />