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.r <br /> Report Number 36996 <br /> QC Report Matrix Spike/ Mat ix Spike Duplicate Date 2/2012004 <br /> Project Name Former Be con 12474 <br /> Project Number 1474.15 <br /> i <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked ample Spike Dup Sample Sample Analysts Date Percent Percent Percent Recov Diff <br /> Parameter Sample alue Level Level Value Value Units Method Analyzed, Recov Recov Diff Limit Limit <br /> Benzene 36996-04 <0 0050 00396 00397 00364 00365 mg/Kg EPA 8260B 2118104 92 0 920 00 1 586 70-130 25 <br /> Toluene 36996-04 <0 0050 00396 00397 00366 00365 mglKg EPA 8260B 2118104 92 3 91 9 0 41 70-130 25 <br /> Tert-Butanol 36996-04 <0 0050 0 198 0 198 0 171 0 175 mg/Kg EPA 82606 2118104 864 884 2 29 70-130 25 <br /> Methyl-t-Butyl Ether 36996-04 <0 0050 00396 00397 00345 00340 mg/Kg EPA 82606 2118104 871 858 1510 70-130 25 <br /> Benzene 36996-05 <0 0050 00370 00370 00356 00359 mg/Kg EPA 8260B 2119104 962 970 0 776 70-130 25 <br /> Toluene 36996-05 ;<0 0050 00370 00370 00357 00361 mg/Kg EPA 8260B 2119104 965 975 0 979 70-130 25 <br /> Tert-Butanol 36996-05 <0 0050 0 185 0 185 0 172 0 190 mg/Kg EPA 82608 2119104 931 102 959 70-130 25 <br /> Methyl-t-Butyl Ether 36996-05 <0 0050 00370 00370 00332 00336 mg/Kg EPA 8260B 2119104 899 908 0 996 70-130 25 <br /> It <br /> # r <br /> r d <br /> ,1 <br /> t <br /> ! I <br /> I � <br /> 1 i I <br /> I <br /> f I4 <br /> + r <br /> ' rr <br /> k � <br /> Approved By R P Furry <br /> l K1FF ATICAL, LLC <br /> 2795 2nd St, Suite 30 avis, CA 95616 530-297-4800 <br />