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• ! s <br /> Report Number 22067 <br /> QC Report Matrix Spikel Matrix Spike Duplicate Date 9/20/2001 <br /> Project Name 7910 Lower Sacramento <br /> Project Number 010$30-N2 <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked Sample Spike DUD 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 22067-01 2 0 400 400 486 481 uglL EPA 8260B 9/5/2001 116 115 1 10 70-130 25 <br /> Toluene 22067-01 3 8 400 400 48 2 48 2 ug/L EPA 8260B 9/5/2001 111 111 00901 70-130 25 <br /> Tert-Butanol 22067-01 <5 0 200 200 227 230 uglL EPA 8260B 9!512001 113 115 1 18 70-130 25 <br /> Methyl-t-Butyl Ether 22067-01 <0 50 400 400 444 440 uglL EPA 82606 9/5/2001 111 110 0 837 70-130 25 <br /> I <br /> KIFF ANALYTICAL, LLC Approved By JI Krff <br /> 4 ' <br /> 720 Olive Drive, Suite D Davis, CA 95616 530-297-4800 <br />