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' CHEMWEST ANALYTICAL LABORATORIES <br /> BENZENE, TOLUENE, ETHYL BENZENE, XYLENES <br /> CW: CALUFT <br /> Quality Control <br /> Client ID: LQCS GC-6 S601 CHEMWEST ID: 9501-QC1 <br /> tDate Analyzed: 04/21/92 Matrix : Soil <br /> Spike % <br /> Conc. Recovery Recovery <br /> Compound (mg/Kg) 9501-MBS 9501-MBSD RPD <br /> ------------- - - ------- <br /> Benzene050 98% <br /> 98% d% <br /> ' Toluene 0. 50 96% 98% 2% <br /> Ethylbenzene 0. 50 98% 96% 2% <br /> p-Xylene 0. 25 96% 96% 0% <br /> ' m-Xylene 0.25 96% 94% 2% <br /> o-Xylene 0. 50 98% 96% 2% <br /> Total-Xylenes 1. 0 97% 95% 20 <br /> ' -------------------- - ---------- ------- <br /> Spike <br /> - % <br /> Conc. Recovery Recovery <br /> ' Surrogate (mg/Kg) 9501-MBS 9501-MBSD <br /> ------------------ <br /> Bromofluorobenzene- 20 102% 99% <br /> CALUFT: See Narrative <br /> 1 <br /> 1 <br /> 1 <br /> Date Reported: <br /> ' Approved by: )CP 04/29/92 REV 5: 1. 90 <br /> �� 1P-C_�Nl JEE =,N �,iV'SiC <br />