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� II <br /> t Report Number 27791 <br /> QC Report . Matrix Spike/Matrix Spike Duplicate Date 818/02 <br /> Project Name 4315 Waterloo Road, <br /> Project Number 020731-MM-2 " <br /> I <br /> I � <br /> E Duplicate Spiked <br /> i 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 27791-01 <0 50 198 197 14 20 8 1201 <br /> � 21 2 ug/L EPA 8260B 815102 105 107 212 70-130 25 <br /> Toluene 27791-01 0 50 198 197 20 1 ug/L EPA 82608 815102 101 102 0 837 70-130 25 <br /> Tert-Butanol 27791-01 <50 992 98 7 ,104 ! 104 ug/L EPA 8260B 815102 105 105 0 690 70-130 25 <br /> Methyl-t-Butyl Ether27791-01 63 198 197 i; 77 7 758 uglL EPA 8260E 815102 743 65 0 133 70-130 25 <br /> I i I <br /> I ' I <br /> I li <br /> I � � <br /> II y <br /> 1 i I <br /> I s <br /> I <br /> I I I Y <br /> I <br /> I <br /> I <br /> I I <br /> I , <br /> I /CAL, LLC <br /> KIFF ANA Approved By .! � f Kiff <br /> . { <br /> 720 Olive Drive, Suite D vis, CA 95616 530-297-4800 <br />