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Report Number 22380 <br /> i <br /> QC Report Matrix Spikel Matrix Spike Duplicate Date 10/7/2001 <br /> Project Name QUIK STOP <br /> Project Number 7039.42 <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 /> Spike Recovery Data <br /> Benzene 22325-01 59 400 400 483 481 ug/t_ EPA 8260B 9/22/2001106 105 0 544 70-130 25 <br /> Toluene 22325-01 <0 50 400 400 48 7 48 7 ug/L EPA 82608 9/2212001122 122 00411 70-130 25 <br /> Tert-Butanol 22325-01 <5 0 200 200 226 230 ug/L EPA 82608 9/22/2001113 115 1 59 70-130 25 <br /> Methyl-t-Butyl Ether 22325-01 8 4 400 400 51 2 51 5 ug/L EPA 8260B 9122/2001107 108 0 722 70-130 25 <br /> I <br /> i <br /> I <br /> I <br /> i <br /> Approved By J I Klff <br /> KIFF ANALYTICAL, LLC <br /> 720 Olive Drive, Suite D Davis CA 95616 530-2974800 <br />