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Report Number : 78203 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 07/29/2011 <br /> Project Name : Parcel #2A - 3Q11 Monitoring and Sampling <br /> Project Number : 211602258.400.401 <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 /> Naphthalene <br /> 78203-03 <0.50 40.0 40.0 42.0 39.2 ug/L EPA 8260B 7/22/11 105 97.9 7.02 70.0-130 25 <br /> O-Xylene <br /> 78203-03 <0.50 40.0 40.0 40.2 36.6 ug/L EPA 8260B 7/22/11 100 91.5 9.29 79.7-120 25 <br /> P + M Xylene <br /> 78203-03 <0.50 40.0 40.0 38.8 35.4 ug/L EPA 8260B 7/22/11 97.0 88.4 9.33 76.8-120 25 <br /> Styrene <br /> 78203-03 <0.50 40.0 40.0 42.2 38.3 ug/L EPA 8260B 7/22/11 106 95.6 9.80 70.0-130 25 <br /> Tert-Butanol <br /> 78203-03 <5.0 193 193 201 185 ug/L EPA 8260B 7/22/11 104 95.6 8.42 80-120 25 <br /> Tert-amyl-methyl ether <br /> 78203-03 <0.50 39.9 39.9 42.1 38.6 ug/L EPA 8260B 7/22/11 106 96.8 8.68 78.9-120 25 <br /> Tetrachloroethene <br /> 78203-03 <0.50 40.0 40.0 39.1 35.3 ug/L EPA 8260B 7/22/11 97.8 88.2 10.4 77.0-120 25 <br /> Toluene <br /> 78203-03 <0.50 40.0 40.0 38.8 35.3 ug/L EPA 8260B 7/22/11 97.1 88.2 9.59 80-120 25 <br /> Trichloroethene <br /> 78203-03 <0.50 40.0 40.0 38.3 34.7 ug/L EPA 8260B 7/22/11 95.7 86.7 9.81 80-120 25 <br /> Trichlorofluoromethane <br /> 78203-03 <0.50 40.0 40.0 44.2 40.4 ug/L EPA 8260B 7/22/11 110 101 8.96 70.0-130 25 <br /> v <br /> CD <br /> w <br /> 0 <br /> 0 <br /> 00 <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />