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! ! <br /> Report Number: 38* <br /> QC Report : Laboratory Control Sample (LCS) Date : 6/21/2004 <br /> Project Name : Former Beacon 12474 <br /> Project Number. 1474.47 <br /> LCS <br /> LCS Percent <br /> Spike Analysis Date Percent Recov. <br /> Parameter Level Units Method Analyzed Recov. Limit <br /> Benzene 40.0 ug/L EPA 8260B 6116104 93.9 70-130 <br /> Toluene 40.0 ug/L EPA 8260B 6116104 89.2 70-130 <br /> Tert-Butanol 200 ug/L EPA 8260B 6116/04 94.5 70-130 <br /> Methyl-t-Butyl Ether 40.0 ug/L EPA 82606 6116104 106 70-130 <br /> Benzene 40.0 ug/L EPA 8260B 6117104 92.3 70-130 <br /> Toluene 40.0 ug/L. EPA 8260B 6117104 100 70-130 <br /> Tert-Butanol 200 ug/L EPA 8260B 6117104 90.9 70-130 <br /> Methyl-t-Butyl Ether 40.0 ug/L EPA 8260B 6117104 92.2 70-130 <br /> KIFF ANALYTICAL, LLC Approved By: Jo Kiff <br /> 770$; 7nrl Ct Ciiitc Inn rl +%Ac r a ❑FR1R 9;'Ar)-"7-ARnn <br />