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Report Number : 76642 <br /> QC Report: Matrix Spike/Matrix Spike Duplicate Date : 03/08/2011 <br /> Project Name : City of Manteca UST Removal <br /> Project Number: 9041.011P <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent I <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 /> Cadmium <br /> 76642-01 <0.50 50.0 50.0 52.6 53.5 mg/Kg EPA 6010B 3!7/11 105 107 1.71 75-125 20 <br /> Chromium <br /> 76642-01 10 50.0 50.0 61.2 60.8 mg/Kg EPA 6010B 317/11 101 101 0.492 75-125 20 <br /> Lead <br /> 76642-01 4.7 50.0 50.0 65.0 54.4 mg/Kg EPA 6010B 3/7/11 121 99.4 17.9 75-125 20 I <br /> Nickel <br /> 76642-01 9.3 50.0 50.0 57.4 57.8 mg/Kg EPA 6010B 3/7/11 96.3 97.2 0.781 75-125 20 <br /> Zinc <br /> 76642-01 66 50.0 50.0 132 116 mg/Kg EPA 6010B 3/7/11 132 101 12.5 75-125 20 <br /> m <br /> m <br /> N <br /> J <br /> O_ <br /> W <br /> W <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />