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Report Number : 78182 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 07/27/2011 <br /> Project Name : Parcel #2A - 3Q11 Monitoring and Sampling <br /> Project Number : 211602258.400.401 <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 /> Chloromethane <br /> 78176-04 <0.50 40.0 40.0 40.0 39.0 ug/L EPA 8260B 7/20/11 100 97.5 2.60 45.9-142 25 <br /> Dibromochloromethane <br /> 78176-04 <0.50 40.0 40.0 40.6 39.9 ug/L EPA 8260B 7/20/11 102 99.8 1.82 70.0-130 25 <br /> Dibromomethane <br /> 78176-04 <0.50 40.0 40.0 40.5 39.8 ug/L EPA 8260B 7/20/11 101 99.5 1.64 70.0-130 25 <br /> Dichlorodifluoromethane <br /> 78176-04 <0.50 40.0 40.0 36.5 34.5 ug/L EPA 8260B 7/20/11 91.3 86.4 5.56 47.4-151 25 <br /> Diisopropyl ether <br /> 78176-04 <0.50 39.6 39.6 41.3 40.7 ug/L EPA 8260B 7/20/11 104 103 1.47 80-120 25 <br /> Ethanol <br /> 78176-04 <5.0 99.7 99.7 95.2 97.9 ug/L EPA 8260B 7/20/11 95.4 98.2 2.83 55.1-159 25 <br /> Ethyl-tert-butyl ether <br /> 78176-04 <0.50 39.9 39.9 41.8 41.0 ug/L EPA 8260B 7/20/11 105 103 1.92 76.5-120 25 <br /> Ethylbenzene <br /> 78176-04 <0.50 40.0 40.0 41.0 40.3 ug/L EPA 8260B 7/20/11 102 101 1.58 80-120 25 <br /> Hexachlorobutadiene <br /> 78176-04 <0.50 40.0 40.0 38.0 37.0 ug/L EPA 8260B 7/20/11 95.0 92.4 2.68 70.0-130 25 <br /> Isopropyl benzene <br /> 78176-04 <0.50 40.0 40.0 40.3 38.8 ug/L EPA 8260B 7/20/11 101 97.1 3.62 70.0-130 25 <br /> v <br /> co <br /> w <br /> N <br /> O <br /> O <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />