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Report Number : 78182 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 07/27/2011 <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 /> O-Xylene <br /> 78176-02 <0.50 40.0 40.0 40.0 39.5 ug/L EPA 8260B 7/20/11 100 98.8 1.22 79.7-120 25 <br /> P + M Xylene <br /> 78176-02 <0.50 40.0 40.0 39.0 38.1 ug/L EPA 8260B 7/20/11 97.4 95.3 2.15 76.8-120 25 <br /> Styrene <br /> 78176-02 <0.50 40.0 40.0 41.8 40.9 ug/L EPA 8260B 7/20/11 104 102 2.10 70.0-130 25 <br /> Tert-Butanol <br /> 78176-02 <5.0 193 193 195 198 ug/L EPA 8260B 7/20/11 101 102 1.69 80-120 25 <br /> Tert-amyl-methyl ether <br /> 78176-02 <0.50 39.9 39.9 40.7 41.0 ug/L EPA 8260B 7/20/11 102 103 0.745 78.9-120 25 <br /> Tetrachloroethene <br /> 78176-02 <0.50 40.0 40.0 39.4 37.8 ug/L EPA 8260B 7/20/11 98.5 94.5 4.15 77.0-120 25 <br /> Toluene <br /> 78176-02 <0.50 40.0 40.0 38.8 37.8 ug/L EPA 8260B 7/20/11 97.0 94.5 2.56 80-120 25 <br /> Trichloroethene <br /> 78176-02 <0.50 40.0 40.0 37.5 36.9 ug/L EPA 8260B 7/20/11 93.8 92.3 1.60 80-120 25 <br /> Trichlorofluoromethane <br /> 78176-02 <0.50 40.0 40.0 40.6 38.0 ug/L EPA 8260B 7/20/11 102 95.0 6.70 70.0-130 25 <br /> Vinyl Chloride <br /> 78176-02 <0.50 40.0 40.0 37.8 36.3 ug/L EPA 8260B 7/20/11 94.6 90.8 4.16 42.1-138 25 <br /> v <br /> co <br /> 410 <br /> 0 <br /> CO <br /> 0 <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />