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Report Number. 21965 <br /> QC Report: Matrix Spike/Matrix Spike Duplicate Date . 915101 <br /> Project Name 2575 Country Club Blvd, <br /> Project Number 243.0783-003 <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 Value Units Method Anal ed Recov Recov Diff Limit Limit <br /> Spike Recovery Data <br /> Benzene 21961-03 <0 50 194 187 177 172 ug/L EPA 8260E 8131/01 915 919 0 409 70.130 25 <br /> Toluene 21961-03 <0 50 194 187 184 179 ug/L EPA 8260B 8/31101 94 9 95 4 0 578 70-130 25 <br /> Tert-Butanol 21961-03 <5 0 970 93,6 910 89 2 ug/L EPA 82608 8/31101 939 95 3 152 70-130 25 <br /> Methyl-t-Butyl Ether 21961-03 <0 50 19.4 187 194 187 ug/L EPA 82608 8/31/01 998 998 00250 70-130 25 <br /> I <br /> I <br /> I <br /> J <br /> KIFF ANALYTICAL, LLC Approved By I Kill <br /> 720 Olive Drive, Suite D Davis,CA 95616 530.297-4800 <br />