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Report Number : 82960 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 10/24/2012 <br /> Project Name : Parcel 2A - 4Q12 Monitoring and Sampling <br /> Project Number : 211602384.500.0802 <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 /> P + M Xylene <br /> 82955-06 11 40.0 40.0 50.9 48.7 ug/L EPA 8260B 10/18/12 99.9 94.3 5.72 76.8-120 25 <br /> Tert-Butanol <br /> 82955-06 7.7 201 201 216 211 ug/L EPA 8260B 10/18/12 104 101 2.75 80-120 25 <br /> Toluene <br /> 82955-06 2.6 40.0 40.0 42.6 41.0 ug/L EPA 8260B 10/18/12 100 96.0 4.09 80-120 25 <br /> Benzene <br /> 82967-04 270 40.0 40.0 294 284 ug/L EPA 8260B 10/18/12 59.4 36.9 46.7 80-120 25 <br /> Ethylbenzene <br /> 82967-04 3.3 40.0 40.0 44.0 42.4 ug/L EPA 8260B 10/18/12 102 97.6 3.98 80-120 25 <br /> Methyl-t-butyl ether <br /> 82967-04 8.5 40.1 40.1 44.1 43.7 ug/L EPA 8260B 10/18/12 88.9 87.9 1.12 69.7-121 25 <br /> P + M Xylene <br /> 82967-04 14 40.0 40.0 53.0 51.3 ug/L EPA 8260B 10/18/12 97.8 93.6 4.41 76.8-120 25 <br /> Tert-Butanol <br /> 82967-04 9.6 201 201 207 205 ug/L EPA 8260B 10/18/12 98.0 97.1 0.854 80-120 25 <br /> Toluene <br /> 82967-04 13 40.0 40.0 51.3 49.6 ug/L EPA 8260B 10/18/12 95.5 91.3 4.48 80-120 25 <br /> v <br /> CD <br /> 0 <br /> w <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />