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e <br /> Report Number: 19811 <br /> QC Report : Matrix Spike/Matrix Spike Duplicate Date : 04/05/2001 n <br /> n <br /> 01 <br /> Project Name : 4315 Waterloo Road, <br /> U, <br /> Project Number : 203-1359 0 <br /> N <br /> V <br /> Duplicate Spiked 00 <br /> 00 <br /> Duplicate Spiked Spiked Sample Relative W <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent o <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 /> Spike Recovery Data <br /> Benzene 19811-09 <0.0050 0.0500 0.0497 0.0479 0.0457 mg/Kg EPA 8260B 04/01/20095.7 92.0 3.96 70-130 25 <br /> Toluene 1.9811-09 <0.0050 0.0500 0.0497 0.0425 0.0414 mg/Kg EPA 8260B 04/01/20085.1 83.3 2.16 70-130 25 <br /> Tert-Butanol 19811-09 <0.0050 0.0500 0.0497 0.0527 0.0583 mg/Kg EPA 8260B 04/01/200105 117 10.8 70-130 25 <br /> Methyl-t-Butyl Ether 19811-09 <0.0050 0.0500 0.0497 0.0551 0.0547 mg/Kg EPA 8260B 04/01/200110 110 0.0727 70-130 25 <br /> v <br /> a <br /> W <br /> N <br /> O <br /> O <br /> F+ <br /> -f <br /> N <br /> W <br /> W <br /> ODS <br /> 3 <br /> 11� <br /> Approved By: J rel Kiff <br /> KIFF ANALYTICAL, LLC <br /> 0 <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-297-4800 <br />