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• <br /> Report Number 39368 <br /> QC Report Matrix Spike/ Matrix Spike Duplicate Date 7/29/2004 <br /> Project Name 7-Eleven Store #32262 <br /> Project Number 77EL 32262 04 <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 Analyzed Recov Recov Diff Lima Limit <br /> Benzene 39367-02 <0 0050 00388 00389 00400 00399 mg/Kg EPA 82606 7129104 103 103 0 482 70-130 25 <br /> Toluene 39367-02 <0 0050 00388 00389 00401 00391 mg/Kg EPA 82608 7129104 103 100 275 70-130 25 <br /> Tert-Butanof 39367-02 <0 0050 0 194 0 194 0 178 0 180 mg/Kg EPA 82606 7129104 915 926 1 26 70-130 25 <br /> Methyl-t-Butyl Ether39367-02 00090 00388 00389 00565 00504 mg/Kg EPA 82606 7129104 122 106 141 70-130 25 <br /> I <br /> Approved By Jo iff <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />