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Report Number : 75042 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 10/26/2010 <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 /> Bromoform <br /> 75029-05 <0.50 40.0 40.0 41.7 41.4 ug/L EPA 8260B 10/21/10 104 104 0.673 73.0-142 25 <br /> Bromomethane <br /> 75029-05 <20 200 200 176 176 ug/L EPA 8260B 10/21/10 88.0 88.2 0.146 33.5-140 25 <br /> Carbon Tetrachloride <br /> 75029-05 <0.50 40.0 40.0 41.8 40.2 ug/L EPA 8260B 10/21/10 105 100 3.99 70.0-130 25 <br /> Chlorobenzene <br /> 75029-05 <0.50 40.0 40.0 38.9 38.4 ug/L EPA 8260B 10/21/10 97.2 96.0 1.18 80-120 25 <br /> Chloroethane <br /> 75029-05 <0.50 40.0 40.0 34.6 33.0 ug/L EPA 8260B 10/21/10 86.4 82.4 4.71 70.0-130 25 <br /> Chloroform <br /> 75029-05 <0.50 40.0 40.0 39.3 37.6 ug/L EPA 8260B 10/21/10 98.3 93.9 4.63 80.0-120 25 <br /> Chloromethane <br /> 75029-05 <0.50 40.0 40.0 39.6 37.6 ug/L EPA 8260B 10/21/10 98.9 94.0 5.13 45.9-142 25 <br /> Dibromochloromethane <br /> 75029-05 <0.50 40.0 40.0 43.1 42.4 ug/L EPA 8260B 10/21/10 108 106 1.75 70.0-130 25 <br /> Dibromomethane <br /> 75029-05 <0.50 40.0 40.0 40.1 39.1 ug/L EPA 8260B 10/21/10 100 97.8 2.37 70.0-130 25 <br /> Dichlorodifluoromethane <br /> 75029-05 <0.50 40.0 40.0 37.9 36.1 ug/L EPA 8260B 10/21/10 94.7 90.3 4.72 47.4-151 25 <br /> v <br /> co <br /> CO <br /> 0 <br /> rn <br /> CO <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />