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•Entech Analytical Labs,Inc 525 Del Rey Avenue,Suite E <br /> Sunnyvale, CA 94086 <br /> IQUALITY CONTROL RESULTS SUMMARY <br /> Volatile Organic Compounds <br /> Laboratory Control Sample QC Batch� WMS000221 Date analyzed 02/21/00 <br /> Matrix Liquid Spiked Sample Blank Spike <br /> Units !tg/L <br /> PARAMETER Method # SA SR SP SP SPD SPD RPD QC LIMITS <br /> ug/L ug/L pg2 %R }tg/I- %R RPD ; %R <br /> ;1,1-Dichloroethene 8240/8260 40 ND 320 80 317 79 1 09 25 50-150 <br /> e <br /> ;Methyl-tert-butyl ether 8240/8260 40 ND 370 93 368 92 0 5 25 50-150 ; <br /> 96 0 3 25 50-150 <br /> ;Benzene 8240/8260 40 ND 38 3 46 38 4 , <br /> ;Trichloroethene 8240/8260 40 ND 403 101 1 41 1 103 i 2 0 25 50-150 <br /> :Toluene 8240/8260 1 40 1 ND 1 38 6 1 97 385 1 96 1 0 3 25 50-150 <br /> ;Chlorobenzene 8240/$260 40 ND 385 96 379 1 95 ; 1 6 25 50-150 <br /> I , <br /> :Surrogates <br /> ,Dibromofluoromethane , 8240/8260 98% 99% ; 103% ; 65-135 ; <br /> 1MTBE-d3 8240/8260 1 97% 99% 1 102% 65-135 <br /> ' , <br /> :Toluene-d8 � $24018260 � � 95% i 94% � � 94% 1 , � 1 65-135 <br /> 1 8240/8260 100% 101% 102% 1 65-135 <br /> �4-Bromofluorobenzene I , , , , , , , <br /> Definition of Terms <br /> ria 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 />