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Report Number: 67767 <br /> QC Report :Matrix Spike/Matrix Spike Duplicate Date : 03/24/2009 <br /> Project Name : New West#1003: 6437 W. Banner, Lodi <br /> Project Number : New West#1003 <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 /> TPH as Diesel BLANK <50 1000 1000 1010 970 ug/L M EPA 8015 3/19/09 101 97.0 4.25 70-130 25 <br /> Benzene 67755-04 <0.50 39.3 39.3 37.5 36.9 ug/L EPA 8260B 3/18/09 95.3 93.8 1.52 70-130 25 <br /> Methyl4-butyl ether 67755-04 <0.50 40.7 40.7 38.2 38.8 ug/L EPA 8260B 3/18/09 93.8 95.3 1.53 70-130 25 <br /> Tert-Butanol 67755-04 <5.0 201 201 203 201 ug/L EPA 8260B 3/18/09 101 99.9 0.716 70-130 25 <br /> Toluene 67755-04 <0.50 40.1 40.1 38.4 38.2 ug/L EPA 82608 3/18/09 95.7 95.2 0.533 70-130 25 <br /> • <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />