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Report Number: 76642 <br /> QC Report: Matrix Spike/Matrix Spike Duplicate Date : 03/08/2011 <br /> Project Name : City of Manteca UST Removal <br /> Project Number : 9041.01P <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 /> Tert-amyl-methyl ether <br /> 76642-01 <0.0050 0.0394 0.0392 0.0370 0.0372 mg/Kg EPA 8260B 3/4/11 94.0 95.0 1.07 64.9-122 25 <br /> Tetrachloroethene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0346 0.0347 mg/Kg EPA 8260B 3/4/11 88.0 88.7 0.834 64.7-122 25 <br /> Toluene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0343 0.0342 mg/Kg EPA 8260B 3/4/11 87.1 87.4 0.372 65.7-120 25 <br /> Trichloroethene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0382 0.0376 mg/Kg EPA 8260B 3/4/11 97.1 96.1 1.05 63.9-121 25 <br /> Trichlorofluoromethane <br /> 76642-01 <0.0050 0.0394 0.0391 0.0355 0.0365 mg/Kg EPA 8260B 3/4/11 90.2 93.3 3.39 70.0-130 25 <br /> Vinyl Chloride <br /> 76642-01 <0.0050 0.0394 0.0391 0.0343 0.0353 mg/Kg EPA 8260B 3/4/11 87.0 90.3 3.67 45.9-127 25 <br /> c-1,3-Dichloropropene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0354 0.0353 mg/Kg EPA 8260B 3/4/11 89.9 90.2 0.306 70.0-130 25 <br /> cis-1,2-Dichloroethene <br /> 1 <br /> 76642-01 <0.0050 0.0394 0.0391 0.0324 0.0339 mg/Kg EPA 8260B 3/4/11 82.4 86.5 4.90 70.0-130 25 <br /> t-1,2-Dichloroethene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0325 0.0332 mg/Kg EPA 8260B 3/4/11 82.6 84.9 2.78 70.0-130 25 <br /> t-1,3-Dichloropropene <br /> 76642-01 <0.0050 0.0394 0.0391 0.0375 0.0371 mg/Kg EPA 8260B 3/4/11 95.3 94.9 0.402 70.0-130 25 <br /> m <br /> m <br /> m <br /> N <br /> N <br /> O <br /> W <br /> W <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />