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0 • • <br /> Report Number 25060 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 3114102 <br /> Project Name FORMER BEACON #419 <br /> Project Number 1419.45 <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 /> Tert-Butanol 25001-01 <5 0 200 200 208 208 ug/L EPA 8260B 314102 104 104 00481 70-130 25 <br /> Methyl-t-Butyl Ether 25001-01 <0 50 400 400 372 388 ug/L EPA 8260B 3/4/02 930 969 411 70-130 25 <br /> Benzene 25237-01 <0 50 400 400 433 421 ug/L EPA 8260B 3/11/02 108 105 293 70-130 25 <br /> Toluene 25237-01 <0 50 400 400 453 436 ug/L EPA 82608 3111/02 113 109 371 70-130 25 <br /> Tert-Butanol 25237-01 160 200 200 368 364 ug/L EPA 82606 3111102 107 104 2 35 70-130 25 <br /> Methyl-t-Butyl Ether 25237-01 79 400 400 124 128 ug/L EPA 8260B 3111/02 114 125 908 70-130 25 <br /> i <br /> Approved By J I Kiff <br /> KIFF ANALYTICAL, LLC <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-2974800 <br />