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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# WMS000105 Date analyzed 01/05/00 <br /> Matrix Liquid Spiked Sample Blank Spike <br /> Units pg/L <br /> PARAMETER Method# SA SR SP SP SPD SPD RPD QC LIMITS <br /> pg/L pg/L lig/l- %R pg/L %R RPD ; %R <br /> 1 1 I 1 I 1 1 I 1 1 1 1 <br /> 1 j-D,chloroethene 8240/8260 l 40 ND 392 98 395 99 08 1 25 50-150 ; <br /> ;Methyl-tert-butyl ether 8240/8260 40 ND I 386 97 437 109 124 25 50-150 <br /> Benzene 1 8240/8260 1 40 l ND 1 393 1 98 405 1 101 1 30 1 25 50-150 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> 1 8240/8260 40 ND 40 5 101 42 6 107 5 1 25 50- <br /> 'Trichloroethene ' 150 <br /> 1 1 1 1 1 1 1 1 1 1 1 <br /> 1 1 1 4 1 1 1 1 1 1 1 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> Toluene I 8240/8260 1 40 1 ND 1 42 1 1 105 l 403 1 101 44 1 25 1 50-150 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> lChlorobenzene 1 <br /> 8240/8260 1 40 I ND 1 41 1 103 412 1 103 1 02 1 25 50-150 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 7 <br /> 1 1 1 1 1 1 1 1 1 1 1 ! <br /> ,Surrogates <br /> 1Dibromofluoromethane 8240/8260 1 94% 1 98% 1 1 103% 1 1 65-135 1 <br /> 1 , 1 1 1 1 1 1 1 1 1 1 <br /> ' <br /> MTBE-d3 1 8240/8260 � 65-135 92% I 93% � 102% � I i i I <br /> i <br /> Toluene i i f f i98/ f i 165-1358240/8260 94/ 93/ 1 <br /> 4-Bromofluorobenzene 8240/8260 1 1 95% 1 95% 1 1 101% 1 1 1 1 65-135 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 />