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F � <br /> Report Number 27578 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 7125/02 <br /> Project Name ` 3725 South Tracy <br /> Project Number 020715-JK-1 <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 Limit Limit <br /> Benzene 27591-03 64 114 114 168 1, 167 ug/L EPA 8260B 7/22102 917 907 1 07 70-130 25 <br /> Toluene 27591-03 46 114 114 146 i, 144 ug/L EPA 8260B 7122102 874 854 228 70-130 25 <br /> Tert-Butanol 27591-03 97 571 571 538 535 ug/L EPA 8260B 7122102 926 919 0 716 70-130 25 <br /> Methyl-t-Butyl Ether 27591-03 13 114 114 1,18 120 uglL EPA 8260B 7122102 921 933 1 32 70-130 25 _ <br /> Benzene 27578-02 <0 50 400 400 41 8 41 5 ug/L EPA 8260E 7123102 104 104 0 648 70-130 25 <br /> Toluene 27578-02 <0 50 400 400 426 41 9 ug/L EPA 8260B - 7123102 , 106 105 149 70-130 25 <br /> Tert-Butanol 27578-02 <5 0 200 200 192 188 ug/L EPA 8260E 7123102 962 94 3 197 70-130 25 <br /> Methyl-t-Butyl Ether 27578-02 <0 50 400 400 404 405 ug/L EPA 8260B 7/23102 101 101 0 247 70-130 25 <br /> i <br /> ' i I <br /> i <br /> � i } <br /> ' I u <br /> , <br /> 1 l <br /> i <br /> i <br /> ` F I <br /> 1 <br /> , � y <br /> ICAL, LLC <br /> KIFF ANA <br /> Approved By J t Kiff � <br /> I <br /> 720 Olive Drive, Suite D vis, CA 95616 530-297-4800 <br /> •i <br />