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v <br /> 1 <br /> Report Number: 34954 <br /> Date: 9/22/2003 <br /> QC Report:Matrix Spike/Matrix Spike Duplicate <br /> j <br /> Project Name: 022-371 <br /> Project Number: 022-371 <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 /> <0.0050 0.0403 0.0403 0.0406 0.0403 m /K EPA 82608 9/17/03 101 99.9 0.773 70-130 25 <br /> Benzene 34842-25 mg/Kg <br /> Toluene 34842-25 <0.0050 0.0403 0.0403 0.0403 0.0408 mg/Kg EPA 8260B 9/17/03 100 101 1.22 70-130 25 <br /> Tert-Butanol 34842-25 <0.0050 0.202 0.202 0.187 0.179 mg/Kg EPA 8260B 9/17/03 92.7 89.0 4.08 70-130 25 <br /> Methyl-t-Butyl Ether 34842-25 <0.0050 0.0403 0.0403 0.0350 0.0381 mg/Kg EPA 82608 9/17/03 86.8 94.4 8.33 70-130 25 <br /> C <br /> i <br /> Approved By: J &I Kiff <br /> KIFF ANALYTICAL, LLC U 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />