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Report Number : 75042 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 10/26/2010 <br /> Project Name : Parcel #2A - 4Q10 Monitoring and Sampling <br /> Project Number : 211402828.300.250 <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 /> O-Xylene <br /> 75029-06 <0.50 40.0 40.0 40.5 40.1 ug/L EPA 8260B 10/21/10 101 100 0.953 79.7-120 25 <br /> P + M Xylene <br /> 75029-06 <0.50 40.0 40.0 40.3 39.6 ug/L EPA 8260B 10/21/10 101 99.1 1.52 76.8-120 25 <br /> Styrene <br /> 75029-06 <0.50 40.0 40.0 42.0 41.6 ug/L EPA 8260B 10/21/10 105 104 1.03 70.0-130 25 <br /> Tert-Butanol <br /> 75029-06 50 200 200 252 250 ug/L EPA 8260B 10/21/10 101 100 1.02 80-120 25 <br /> Tert-amyl-methyl ether <br /> 75029-06 <0.50 40.2 40.2 39.8 39.6 ug/L EPA 8260B 10/21/10 98.9 98.4 0.585 78.9-120 25 <br /> Tetrachloroethene <br /> 75029-06 <0.50 40.0 40.0 39.5 39.0 ug/L EPA 8260B 10/21/10 98.8 97.4 1.48 77.0-120 25 <br /> Toluene <br /> 75029-06 <0.50 40.0 40.0 40.6 39.8 ug/L EPA 8260B 10/21/10 102 99.4 2.26 80-120 25 <br /> Trichloroethene <br /> 75029-06 <0.50 40.0 40.0 40.1 39.3 ug/L EPA 8260B 10/21/10 100 98.3 2.04 80-120 25 <br /> Trichlorofluoromethane <br /> 75029-06 <0.50 40.0 40.0 39.3 38.3 ug/L EPA 8260B 10/21/10 98.2 95.7 2.63 70.0-130 25 <br /> Vinyl Chloride <br /> 75029-06 <0.50 40.0 40.0 39.0 37.8 ug/L EPA 8260B 10/21/10 97.4 94.6 2.97 42.1-138 25 <br /> v <br /> co <br /> w <br /> w <br /> 0 <br /> rn <br /> CO <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />