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M MI♦ f' <br /> • s • <br /> Report Number: 26630 <br /> QC Report : Matrix Spike/Matrix Spike Duplicate Date : 616102 <br /> Project Name : Valley Showcase <br /> Project Number: 8013-01 <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 /> Benzene 26636-01 <0.50 40.0 40.0 42.8 41.4 ug/L EPA 8260B 612102 107 103 3.30 70-130 25 <br /> Toluene 26636-01 <0.50 40.0 40.0 40.2 39.2 ug/L EPA 8260B 612102 100 97.9 2.57 70-130 25 <br /> Tert-Butanol 26636-01 9500 200 200 10100 9740 uglL EPA 8260E 612102 310 107 97.0 70-130 25 <br /> Methyl-t-Butyl Ether 26636-01 <0.50 40.0 40.0 37.3 33.0 ug/L EPA 8260B 612102 93.2 82.6 12.1 70-130 25 <br /> t <br /> Approved By: J6el Kiff 1 <br /> KIFF ANALYTICAL, LLC <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-297-4800 <br />