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i • • <br /> Report Number 32612 <br /> QC Report Matrix Spike/ Matrix Spike Duplicate Date 4115103 <br /> Project Name 7-Eleven Store#17334 <br /> Project Number 77EL 17334 43 <br /> I <br /> Duplicate Spiked Duplicate SpikedSpiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked Sample Spike DUD 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 32592-04 <0 0050 00394 00391 00318 00346 mg/Kg EPA 8260B 418103 807 883 9 02 70-130 25 <br /> Toluene 32592-04 <0 0050 00394 00391 00302 00333 mg/Kg EPA 8260B 418103 768 851 102 70-130 25 <br /> Tert-Butanol 32592-04 <0 0050 0 197 0 196 0 158 0 172 mg/Kg EPA 8260B 418103 802 881 932 70-130 25 <br /> Methyl-t-Butyl Ether 32592-04 <0 0050 00394 00391 00318 00295 mg/Kg EPA 8260E 418103 808 754 695 70-130 25 <br /> I <br /> f <br /> KIFF ANALYTICAL, LLC Approved By Jbef Kiff <br /> i` f <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 V <br />