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CHEMWEST ANALYTICAL LABORATORIES <br /> ETHYLENE DIBROMIDE <br /> EPA METHOD: 8010 <br /> Quality Control <br /> Client ID: LQCS GC-3 5304 CHEMWEST ID: 9805-QC <br /> ' Date Analyzed: 07/08/92 Matrix : Soil <br /> Spike 5 -% <br /> Conc. Recovery Recovery <br /> Compound ------ (MG/KG) 9805-MBS 9805-MBSD RPD <br /> 1 , 1-Dichloroethane 0. 30 203$-------- ---------- <br /> -------- -_ <br /> --------- ----103$ 0$ <br /> 0. 30 <br /> Chloroform 93% 100$ 7% <br /> Trichloroethene 0. 30 107% 110$ 35 <br /> Bromodichloromethane 0. 30 93% 1030 10% <br /> ' Tetrachloroethene 0. 30 103$ 100% 3$ <br /> Chlorobenzene0103$ 100% 3% <br /> -------------------- -30 -------------------- ------------- <br /> ' Spike 5 % <br /> Conc. Recovery Recovery <br /> Surrogates (MG/KG) 9805-MBS 9805-MBSD <br /> -------------------- __ _ <br /> --- -__---- 20 __-------95--------------- <br /> Bromochloromethane 20 93$ 1045 -- <br /> ortho-Chlorotoluene 99% <br /> ----------------------------------------------------------------- <br /> Approved b V{ Date Reported: <br />' Y� 07/20/92 REV4 . 1. 90 <br /> 1 <br /> COMPUCHEM WESTFRN DIVISION <br />