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Report Number : 71894 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 02/13/2010 <br /> Project Name : 1 Q10 QMS - STTC <br /> Project Number : 185702030.200.005 <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 /> Diisopropyl ether <br /> 71915-08 <0.50 39.1 39.5 41.9 41.5 ug/L EPA 8260B 2/11/10 107 105 1.66 80-120 25 <br /> Ethanol <br /> 71915-08 <5.0 99.5 100 82.4 107 ug/L EPA 8260B 2/11/10 82.8 106 24.8 55.1-159 25 <br /> Ethyl-tert-butyl ether <br /> 71915-08 <0.50 39.6 39.9 41.6 40.8 ug/L EPA 8260B 2/11/10 105 102 2.81 76.5-120 25 <br /> Ethylbenzene <br /> 71915-08 <0.50 40.0 40.3 41.3 41.7 ug/L EPA 8260B 2/11/10 103 104 0.268 80-120 25 <br /> Methanol <br /> 71915-08 120 994 1000 815 940 ug/L EPA 8260B 2/11/10 69.6 81.6 15.8 53.2-147 25 <br /> Methyl-t-butyl ether <br /> 71915-08 4.6 39.9 40.2 45.7 42.7 ug/L EPA 8260B 2/11/10 103 94.8 8.44 69.7-121 25 <br /> P + M Xylene <br /> 71915-08 <0.50 38.9 39.2 40.8 41.5 ug/L EPA 8260B 2/11/10 105 106 0.782 76.8-120 25 <br /> Tert-Butanol <br /> 71915-08 <5.0 198 199 194 197 ug/L EPA 8260B 2/11/10 98.0 98.6 0.605 80-120 25 <br /> Tert-amyl-methyl ether <br /> 71915-08 <0.50 40.5 40.8 39.1 38.6 ug/L EPA 8260B 2/11/10 96.5 94.5 2.05 78.9-120 25 <br /> Toluene <br /> 71915-08 <0.50 40.0 40.3 40.1 40.3 ug/L EPA 8260B 2/11/10 100 100 0.141 80-120 25 <br /> v <br /> CD <br /> 41w <br /> 0 <br /> rn <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />