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1 <br /> ' CHEMWEST ANALYTICAL LABORATORIES <br /> HALOGENATED VOLATILE ORGANICS <br /> EPA METHOD: 8010 <br /> Quality Control <br /> 1 <br /> Client ID: LQCS GC--2 CHEMWEST ID: 9996-QCI <br /> ' Date Analyzed: 09/17/92 Matrix : Soil <br /> ' Spike % % <br /> Conc. Recovery Recovery <br /> Compound (ug/Kg) 9996-MBS 9996-S1 RPD <br /> 1, 1-Dichloroethane ----- --------- ----_-- -------- <br /> 5.0 102$ 108$ 6% <br /> Chloroform 5 . 0 120% 124% 3% <br /> Trichloroethene 5. 0 110% 108% 2% <br /> Bromodichloromethane 5. 0 106% 102% 4% <br /> ' Tetrachloroethene 5. 0 110% 104% 6% <br /> Chlorobenzene 5.0 111% 102% 8% <br /> ---------------------------------------------------------------- <br /> ' Spike % % <br /> Conc. Recovery Recovery <br /> ' Surrogates (ug/Kg) 9996-MBS 9996-S1 <br /> ----------- <br /> ------10------------ -------- <br /> Bromachloramethane 105$----------106$------- <br /> Ortho-Chlorotoluene 20 101% 102% <br /> ------------------------------------------------------------------ <br /> 1 I <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> Date Reported: <br /> Approved by: 09/23/92 REV4 . 1. 90 <br /> 1 <br />' COMPUCHEM WESTERN DNISION <br />