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Report Number 24726 <br /> QC Report Matrix Spike/ Matrix Spike Duplicate Date 2/19102 <br /> i <br /> Project Name FOS <br /> Project Number 3490 <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 24675-01 <0 50 195 191 181 18 i 'Ag/L EPA 8260E 2113102 928 948 210 70-130 25 <br /> Toluene 24675-01 <0 50 195 191 183 182 ug/L EPA 8260E 2113102 939 950 114 70-130 25 <br /> Tert-Butanol 24675-01 <5 0 975 957 102 956 ug/L EPA 8260E 2113102 105 999 4 71 70-130 25 <br /> Methyl-t-Butyl Ether 24675-01 <0 50 195 191 202 199 ug/L EPA 82608 2113102 103 104 0 699 70-130 25 <br /> i <br /> i <br /> i <br /> K'PF ANALYTICAL, LI-C Approved By Joel Kiff <br /> � r <br /> 720 01,ve Drive uitP D Davis CA 95616 X30-297-4800 V <br />