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Report Number : 71859 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 02/11/2010 <br /> Project Name : 1 Q10 QMS - STTC <br /> Project Number : 185702192.200.0005 <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 /> 71887-03 <0.50 39.5 39.5 38.2 37.9 ug/L EPA 8260B 2/8/10 96.8 96.1 0.730 80-120 25 <br /> Ethanol <br /> 71887-03 8.7 100 100 111 113 ug/L EPA 8260B 2/8/10 102 104 2.38 55.1-159 25 <br /> Ethyl-tert-butyl ether <br /> 71887-03 <0.50 39.9 39.9 37.3 36.9 ug/L EPA 8260B 2/8/10 93.5 92.6 0.935 76.5-120 25 <br /> Ethylbenzene <br /> 71887-03 <0.50 40.3 40.3 38.5 37.7 ug/L EPA 8260B 2/8/10 95.5 93.4 2.20 80-120 25 <br /> Methanol <br /> 71887-03 84 1000 1000 1130 1170 ug/L EPA 8260B 2/8/10 104 108 3.98 53.2-147 25 <br /> Methyl-t-butyl ether <br /> 71887-03 <0.50 40.2 40.2 34.8 34.9 ug/L EPA 8260B 2/8/10 86.6 86.8 0.214 69.7-121 25 <br /> P + M Xylene <br /> 71887-03 <0.50 39.2 39.2 41.1 40.0 ug/L EPA 8260B 2/8/10 105 102 2.61 76.8-120 25 <br /> Tert-Butanol <br /> 71887-03 <5.0 199 199 192 196 ug/L EPA 8260B 2/8/10 96.5 98.1 1.65 80-120 25 <br /> Tert-amyl-methyl ether <br /> 71887-03 <0.50 40.8 40.8 35.8 35.8 ug/L EPA 8260B 2/8/10 87.8 87.7 0.105 78.9-120 25 <br /> Toluene <br /> 71887-03 <0.50 40.3 40.3 38.5 37.6 ug/L EPA 8260B 2/8/10 95.4 93.2 2.28 80-120 25 <br /> v <br /> CD <br /> w <br /> o) <br /> 0 <br /> 41 <br /> v, <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />