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i <br /> II i4 Report Number 23461 <br /> QC Report Matrix Spike/Matrix Spike Duplicate ! t Date 11/29/2001 <br /> I <br /> Project Name 4315 Waterloo Road, <br /> Project Number 011116-BM2 I <br /> Duplicate Spiked <br /> I Duplicate Spiked Spiked Sample Relative <br /> SpikeSpiked 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 i Valuell Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Spike Recovery Data <br /> Benzene 23453-02 <0 50 189 19 0 ii 1�8 6 188 ug/L BPA 8260B 11122120098 6 99 4 0 707 70-130 25 <br /> Toluene 23453-02 <0 50 189 19 0 1`8 6 187 ug/L EPA 8260B 11122120098 5 98 7 0203 70-130 25 <br /> Tert-Butanol 23453-02 <5 0 94 4 948 98 3 992 ug/L EPA 8260B 111221200104 105 0 551 70-130 25 <br /> it <br /> Methyl-t-Butyl Ether 23453-02 <0 50 18 9 190 I 16 6 162 ug/L EPA 8260E 11122120087 7 85 7 234 70-130 25 <br /> 1 <br /> 1 <br /> {I I r <br /> h <br /> J <br /> I <br /> 11 <br /> I �I <br /> h , <br /> I <br /> ' SII <br /> ' ill <br /> Approved By J i 1 Kiff <br /> I� <br /> KIFF ANALYTICAL, LLC <br /> 720 Olive Drive, Suite *� is, CA 95616 530-297-4800 <br /> I If <br />