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i <br /> Report Number 48320 <br /> i <br /> QC Report Matrix Spike/ Matrix Spike Duplicate Date 2/16/2006 <br /> i <br /> Project Name Quik Stop 76 <br /> Project Number 7076.43 <br /> I _ _ <br /> DuplicateSpiked <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 48320-01 <0 50 400 400 353 345 ug/L EPA 82606 2/10/06 88 3 F 864 220 70-130 25 <br /> Toluene 48320-01 <0 50 1400 400 332 324 ug/L EPA 82606 2/10/06. 83 0 809 253 70-130 25 <br /> Tert-Butanol 48320-01 <5 0 200 200 196 191 ug/L EPA 8260B 2/10/06 97 8 953 260 70-130 25 <br /> Methyl-t-Butyl Ether 48320-01 <0 50 400 400 38 9 384 ug/L EPA 8260B 2110/06 97 3 959 146 70-130 25 <br /> 3 <br /> I <br /> r <br /> ! <br /> ' r <br /> � I <br /> ' ry <br /> i <br /> ! <br /> KIFF ANAL 1CAL, LLC Approved By Joe iff <br /> 2795 2nd St, Suite 300 s, CA 95616 530-297-4800 <br />