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Report Number : 75051 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 10/27/2010 <br /> Project Name : Parcel #2A - 4Q10 Monitoring and Sampling <br /> Project Number : 211402828.300.250 <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 /> Isopropyl benzene <br /> 75055-01 1.1 40.0 40.0 39.9 38.9 ug/L EPA 8260B 10/22/10 97.0 94.6 2.52 70.0-130 25 <br /> Methanol <br /> 75055-01 <50 1000 1000 797 798 ug/L EPA 8260B 10/22/10 79.6 79.7 0.0474 53.2-147 25 <br /> Methyl-t-butyl ether <br /> 75055-01 <0.50 40.0 40.0 37.4 37.1 ug/L EPA 8260B 10/22/10 93.5 92.7 0.889 69.7-121 25 <br /> Methylene Chloride <br /> 75055-01 <5.0 40.0 40.0 37.0 36.0 ug/L EPA 8260B 10/22/10 92.6 90.1 2.75 70.0-130 25 <br /> Naphthalene <br /> 75055-01 3.0 40.0 40.0 42.8 42.0 ug/L EPA 8260B 10/22/10 99.5 97.5 2.00 70.0-130 25 <br /> O-Xylene <br /> 75055-01 5.3 40.0 40.0 44.7 43.6 ug/L EPA 8260B 10/22/10 98.4 95.8 2.67 79.7-120 25 <br /> P + M Xylene <br /> 75055-01 10 40.0 40.0 47.5 47.4 ug/L EPA 8260B 10/22/10 92.6 92.3 0.380 76.8-120 25 <br /> Styrene <br /> 75055-01 0.66 40.0 40.0 40.3 40.1 ug/L EPA 8260B 10/22/10 99.1 98.5 0.594 70.0-130 25 <br /> Tert-Butanol <br /> 75055-01 <5.0 200 200 191 190 ug/L EPA 8260B 10/22/10 95.4 94.8 0.673 80-120 25 <br /> Tert-amyl-methyl ether <br /> 75055-01 <0.50 40.2 40.2 38.5 38.0 ug/L EPA 8260B 10/22/10 95.7 94.5 1.21 78.9-120 25 <br /> v <br /> CD <br /> Cn <br /> Cn <br /> 0 <br /> rn <br /> rn <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />