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0 <br /> • <br /> Report Number 32715 <br /> QC Report . Matrix Spike/Matrix Spike Duplicate Date 06/23/2003 <br /> Project Name 2320 N. Eldorado, <br /> Project Number 030410-RM-1 <br /> i <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 32712-03 <0 50 400 400 416 405 ug/L EPA 8260B 4114103 104 101 273 70-130 25 <br /> Toluene 32712-03 <0 50 400 400 396 386 ug/L EPA 8260B 4/14103 989 966 2 38 70-130 25 <br /> Tert-Butanol 32712-03 <5 0 200 200 206 211 ug/L EPA 82606 4/14103 103 106 235 70-130 25 <br /> Methyl-t-Butyl Ether 32712-03 2 0 400 400 403 427 ug/L EPA 8260B 4/14/03 958 102 615 70-130 25 <br /> i <br /> i <br /> Approved By J I Kiff <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />