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f <br /> Report Number 20309 <br /> QC Report Matrix Spike!Matrix Spike Duplicate Date 11 6!612001 <br /> Project Name N <br /> 6139 Pacific Avenue, <br /> Project Number 010511-11 <br /> 1 ,Duplicate Spiked <br /> f Duplicate Spiked r 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 Drff <br /> Parameter Sample Value Level Level Value 3J Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Spike Recovery Data I <br /> Benzene 20309-03 <0 50 244 239 262 26 1 ug/L EPA 8260E 512012001107 109 1 52 70-130 25 <br /> Toluene 20309-03 <0 50 24 4 23 9 24 9 24 8 ug/L EPA 8260E 512012001102 104 1 50 70-130 25 <br /> Tert-Butanol 20309-03 <5 0 244 239 3l 2 294 ug/L EPA 82608 512012001128 123 3 89 70-130 25 <br /> Methyl-t-Butyl Ether 20309-03 <0 50 244 239 24 2 1 246 ug/L EPA 8260B 5120/200199 0 103 3 63 70-130 25 <br /> r I I <br /> l ' l <br /> I EI I <br /> k € I <br /> r II <br /> I I <br /> I <br /> I i E <br /> I <br /> ti d l � <br /> KIFF ANALYTICAL, LLC ApproveBy J elKiff <br /> l 720 Olive Drivel Suite Ds, CA 95616 530-297-4800 <br /> 'I ISI <br />