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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 /> Methanol <br /> 78176-04 <50 1000 1000 979 996 ug/L EPA 8260B 7/20/11 97.9 99.6 1.73 53.2-147 25 <br /> Methyl-t-butyl ether <br /> 78176-04 <0.50 40.2 40.2 40.5 40.3 ug/L EPA 8260B 7/20/11 101 100 0.498 69.7-121 25 <br /> Methylene Chloride <br /> 78176-04 <5.0 40.0 40.0 39.2 38.7 ug/L EPA 8260B 7/20/11 98.1 96.9 1.25 70.0-130 25 <br /> Naphthalene <br /> 78176-04 <0.50 40.0 40.0 40.9 40.7 ug/L EPA 8260B 7/20/11 102 102 0.536 70.0-130 25 <br /> O-Xylene <br /> 78176-04 <0.50 40.0 40.0 41.2 40.5 ug/L EPA 8260B 7/20/11 103 101 1.80 79.7-120 25 <br /> P + M Xylene <br /> 78176-04 <0.50 40.0 40.0 40.6 39.3 ug/L EPA 8260B 7/20/11 102 98.3 3.32 76.8-120 25 <br /> Styrene <br /> 78176-04 <0.50 40.0 40.0 39.2 37.1 ug/L EPA 8260B 7/20/11 97.9 92.7 5.45 70.0-130 25 <br /> Tert-Butanol <br /> 78176-04 <5.0 193 193 199 199 ug/L EPA 8260B 7/20/11 103 103 0.0208 80-120 25 <br /> Tert-amyl-methyl ether <br /> 78176-04 <0.50 39.9 39.9 42.7 41.5 ug/L EPA 8260B 7/20/11 107 104 2.84 78.9-120 25 <br /> Tetrachloroethene <br /> 78176-04 <0.50 40.0 40.0 41.4 40.3 ug/L EPA 8260B 7/20/11 103 101 2.67 77.0-120 25 <br /> v <br /> co <br /> w <br /> w <br /> 0 <br /> 0 <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />