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Report Number : 73822 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 07/27/2010 <br /> Project Name : Parcel #2A - 3Q10 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 /> Chloroform <br /> 73815-04 <0.50 40.0 40.0 40.8 38.5 ug/L EPA 82606 7/22/10 102 96.3 5.83 80.0-120 25 <br /> Chloromethane <br /> 73815-04 <0.50 40.0 40.0 41.5 39.0 ug/L EPA 82606 7/22/10 104 97.5 6.32 45.9-142 25 <br /> Dibromochloromethane <br /> 73815-04 <0.50 40.0 40.0 42.2 41.2 ug/L EPA 82606 7/22/10 106 103 2.53 70.0-130 25 <br /> Dibromomethane <br /> 73815-04 <0.50 40.0 40.0 42.3 41.4 ug/L EPA 82606 7/22/10 106 104 2.11 70.0-130 25 <br /> Dichlorodifluoromethane <br /> 73815-04 <0.50 40.0 40.0 44.3 41.2 ug/L EPA 82606 7/22/10 111 103 7.38 47.4-151 25 <br /> Diisopropyl ether <br /> 73815-04 <0.50 40.1 40.1 41.2 39.8 ug/L EPA 82606 7/22/10 102 99.2 3.36 80-120 25 <br /> Ethanol <br /> 73815-04 <5.0 100 100 94.3 98.8 ug/L EPA 82606 7/22/10 93.9 98.3 4.59 55.1-159 25 <br /> Ethyl-tert-butyl ether <br /> 73815-04 <0.50 40.1 40.1 41.1 40.1 ug/L EPA 82606 7/22/10 102 100 2.36 76.5-120 25 <br /> Ethylbenzene <br /> 73815-04 <0.50 40.0 40.0 40.5 38.6 ug/L EPA 82606 7/22/10 101 96.4 4.83 80-120 25 <br /> Hexachlorobutadiene <br /> 73815-04 <0.50 40.0 40.0 40.2 38.8 ug/L EPA 82606 7/22/10 101 97.0 3.61 70.0-130 25 <br /> v <br /> co <br /> cn <br /> w <br /> 0 <br /> N <br /> O <br /> Cn <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />