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45874 <br /> QC Report Matrix Spike/ Matrix Spike Duplicate Report Number <br /> 91mber mber 5 <br /> Project Name Sanchez Property { <br /> Project Number <br /> Duplicate Duplicate Spiked <br /> u <br /> P 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 45874-01 <0 50 400 400 412 401 ug/L EPA 82608 9113/05 143 100 2 72 70-130 25 <br /> Toluene 45874-01 <0 50 400 400 377 367 ug/L EPA 8260B 9113105 94 3 91 8 274 70-130 25 <br /> Tert-Butanol 45874-01 <5 0 200 200 197 195 ug/L EPA 8260B 9113105 983 976 0 720 70-130 25 <br /> Methyl-t-Butyl Ether 45874-01 <0 50 400 400 433 431 ug/L EPA 8260E 9113105 108 108 0 375 70-130 25 <br /> 4 <br /> r <br /> KIFF ANALYTICAL, LLC Approved By ,10 iff <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />