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i <br /> Ike .it" <br /> Report Number 28218 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 8/29/2002 <br /> Protect Name Quik Stop Station 039 <br /> Protect Number 7039 43 <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 28187-10 <0 50 400 400 448 433 ug/L EPA 8260B 8126102 112 108 343 70-130 25 <br /> Toluene 28187-10 <0 50 400 400 362 337 ug/L EPA 8260B 8126102 904 84 3 6 96 70-130 25 <br /> Pert-Butanol 28187-10 <5 0 200 200 192 193 ug/L EPA 8260B 8126102 960 965 0 576 70-130 25 <br /> Methyl-t-Butyl Ether28187-10 <0 50 400 400 434 41 0 ug/L EPA 8260B 8126102 108 103 563 70-130 25 <br /> ti <br /> Approved By Joel Kiff <br /> KIFF ANALYTICAL, LLC ! tt <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-297-4800 V <br /> I <br />