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Report Number 12138 <br /> QC Report Method Spikes/Method Spike Duplicates Date 08128198 <br /> Project Name Circle K 1205 <br /> Project Number 911-005.113 <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 /> Soil Spike Recovery Data <br /> Benzene Blank <0 0050 00500 00500 00442 00429 mg]Kg EPA 8260B 08/26/98 883 858 290 70-130 25 <br /> Toluene Blank <0 0050 00500 00500 00460 00448 mg/Kg EPA 82608 08/26/98 921 895 2 84 70-130 25 <br /> Approved By J el Kiff <br /> KIFF ANALYTICAL, LLC <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-297-4800 L <br />