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i <br /> Report Number 23228 <br /> QC Report • Matrix Spike/Matrix Spike Duplicate I4 Date 11/19/2001 <br /> { k <br /> I project Name 4315 Waterloo Road, jC <br /> Project Number 243-1359 <br /> it <br /> Duplicate Spiked <br /> Duplicate Spiked Spoked Sample Relative <br /> Spike' Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked Sample Spike DUD Sample Sample Analysis Date Percent Percent Percent Recov Diff <br /> Parameter Sample Value Level Level 1, Valuell Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Spike Recovery Data j <br /> Benzene 23228-10 <0 50 199 198 21 2 204 ug/L EPA 8260E 111912001106 103 340 70-130 25 <br /> Toluene 23228-10 <0 50 199 198 21 4 206 ug/L EPA 8260E 111912001107 104 317 70-130 25 <br /> Tert-Butanol 23228-10 18 99 6 992 128 127 ug/L EPA 8260B 111912001111 111 0104 70-130 25 <br /> Methyl-t-Butyl Ether 23228-10 57 199 198 'r 772 785 ug/L EPA 82608 11191200199 6 = 107 679 70-130 25 <br /> F <br /> If e <br /> ' � E u <br /> i <br /> 1 <br /> r , <br /> } <br /> Approved By J I Kiff <br /> SKIFF ANAICAL, LLC <br /> 720 Olive Drive, Suite D Es, CA 95616 530-297-4800 <br /> it ,i <br />