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Report Number 32486 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 418103 <br /> Protect Name 7-Eleven Store #17334 <br /> Project Number 77EL 17334.03 <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 32486-03 <0 50 399 398 41 2 408 ug/L EPA 8260B 413103 103 103 0 583 70-130 25 <br /> Toluene 32486-03 <0 50 399 398 404 399 ug/L EPA 8260B 413103 101 100 0 868 70-130 25 <br /> Tert-Butanol 32486-03 <5 0 200 199 187 183 ug/L EPA 8260B 413103 937 92 2 1 56 70-130 25 <br /> Methyl-t-Butyl Ether 32486-03 <0 50 39 9 398 395 407 ug/L EPA 8260E 413103 990 102 335 70-130 25 <br /> Benzene 32486-04 <0 50 400 400 41 2 41 9 uglL EPA 8260B 413103 103 105 1 83 70-130 25 <br /> Toluene 32486-04 <0 50 400 400 402 385 ug/L EPA 8260B 413103 100 96 2 437 70-130 25 <br /> Tert-Butanol 32486-04 740 200 200 959 946 ug/L EPA 82606 413103 110 103 6 03 70-130 25 <br /> Methyl-t-Butyl Ether 32486-04 520 400 400 553 567 ug/L EPA 8260B 413103 752 111 388 70-130 25 <br /> i <br /> KIFF ANALYTICAL, LLC Approved By Joel Kill <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />