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Report Number: 80355 <br /> QC Report: Matrix Spike/Matrix Spike Duplicate - Date : 02/16/2012 <br /> Project Name : FORMER LESCO FACILITY <br /> Project Number: 0129740.05 <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked Sample Spike Dup. Sample Sample Analysis Date Percent Percent Percent Recov. Diff. <br /> Parameter Sample Value Level Level Value Value Units Method Analyzed Recov. Recov. Diff. Limit Limit <br /> Ethylbenzene <br /> 80309-03 <0.0050 0.0397 0.0399 0.0408 0.0407 mg/Kg EPA 8260B 2/14/12 103 102 0.841 65.5-127 25 <br /> Methyl-t-butyl ether <br /> 80309-03 <0.0050 0.0401 0.0403 0.0446 0.0439 mg/Kg EPA 82608 2/14/12 111 109 2.33 57.0-122 25 <br /> Methylene Chloride <br /> 80309-03 <0.0050 0.0397 0.0399 0.0387 0.0378 mg/Kg EPA 8260B 2/14/12 97.6 94.6 3.13 70.0-130 25 <br /> P+M Xylene <br /> 80309-03 <0.0050 0.0397 0.0399 0.0396 0.0392 mg/Kg EPA 8260B 2/14/12 99.7 98.2 1.50 62.5-124 25 <br /> Tert-Butanol <br /> 80309-03 <0.0050 0.199 0.201 0.197 0.195 mg/Kg EPA 8260B 2/14/12 99.0 97.2 1.84 64.3-122 25 <br /> Tert-amyl-methyl ether <br /> 80309-03 <0.0050 0.0391 0.0394 0.0445 0.0439 mg/Kg EPA 8260B 2/14/12 114 111 2.02 64.9-122 25 <br /> Tetrachloroethene <br /> 80309-03 <0.0050 0.0397 0.0399 0.0386 0.0382 mg/Kg EPA 8260B 2/14/12 97.3 95.8 1.58 64.7-122 25 <br /> Toluene <br /> 80309-03 <0.0050 0.0397 0.0399 0.0391 0.0387 mg/Kg EPA 8260B 2/14/12 98.6 97.0 1.57 65.7-120 25 <br /> Trichloroethene <br /> 80309-03 <0.0050 0.0397 0.0399 0.0385 0.0384 mg/Kg EPA 82608 2/14/12 97.0 96.1 0.940 63.9-121 25 <br /> Trichlorofluoromethane <br /> 80309-03 <0.0050 0.0397 0.0399 0.0398 0.0392 mg/Kg EPA 8260B 2/14/12 100 98.1 2.11 70.0-130 25 <br /> v <br /> to <br /> CD <br /> 0 <br /> N <br /> W <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />