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s � • <br /> Report Number 30316 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 12/17/2002 <br /> Project Name Joe's Truck Plaza <br /> Project Number 741-962-7001 <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 30259-03 19 400 400 59 2 58 0 ug/L EPA 8260B 12/12/02 998 966 323 70-130 25 <br /> Toluene 30259-03 24 400 400 64 7 638 ug/L EPA 82606 12/12/02 100 984 2 06 70-130 25 <br /> Tert-Butanol 30259-03 <5 0 200 200 189 185 ug/L EPA 82606 12/12/02 94 7 925 230 70-130 25 <br /> Methyl-t-Butyl Ether 30259-03 <0 50 400 400 391 39 2 ug/L EPA 8260B 12/12102 977 981 0 409 70-130 25 <br /> Approved By Jjiel Kill <br /> KIFF ANALYTICAL, LLC I I <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 U <br />