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� I <br /> 1'I ' <br /> Report Number 23286 <br /> QC Report Matrix Spikel Matrix Spike Duplicate , Ilk Date 11/20/2001 <br /> Project Name 4315 Waterloo Road, <br /> Project Number 243-1559 i <br /> �f !t <br /> Duplicate Spiked <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 1f Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Spike Recovery Data <br /> Benzene 23286-15 <0 0050 00373 00389 0 0325 0 0348 mg/kg EPA 82608 11112120087 2 894 249 70-130 25 <br /> Toluene 23286-15 <0 0050 00373 00389 6,0312" 00334 mg/Kg EPA 82603 11112120083 8 857 230 70-130 25 <br /> Tert-Butanol 23286-15 <0 0050 0 186 01941 1, 6'13911 0 156 mg/Kg EPA 8260E 11112120074 4 803 , 754 70-130 25 <br /> Methyl-t-Butyl Ether 23286-15 <0 0050 00373 00389 d0294 00302 mg/Kg EPA 8260E 11112120078 8 775 170 70.130 -25 - <br /> j� J <br /> I � , <br /> i ! <br /> ii <br /> I y <br /> !r Approved By J I Kiff <br /> KIFF ANAL ICAL, LLC <br /> 720 Olive Drive, Suite D m, CA 95616 530-297-4800 <br />