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Laboratories Inc. I . <br /> Environmental Testing Laboratory Since 1949 <br /> CB&I Reported: 08/19/2013 13:29 <br /> 180 Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 149269 <br /> Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br /> QC Batch ID: BWH0015 Used client sample: N <br /> Benzene MS 1313237-95 ND 21.158 25.000 ug/L 84.6 70-130 <br /> MSD 1313237-95 ND 20.723 25.000 ug/L 2.1 82.9 20 70-130 <br /> Bromodichloromethane MS 1313237-95 ND 22.757 25.000 ug/L 91.0 70-130 <br /> MSD 1313237-95 ND 22.837 25.000 ug/L 0.4 91.3 20 70-130 <br /> Chlorobenzene MS 1313237-95 ND 20.603 25.000 ug/L 82.4 70-130 <br /> MSD 1313237-95 ND 20.297 25.000 ug/L 1.5 81.2 20 70-130 <br /> Chloroethane MS 1313237-95 ND 22.587 25.000 ug/L 90.3 70-130 <br /> MSD 1313237-95 ND 21.919 25.000 ug/L 3.0 87.7 20 70-130 <br /> 14-Dichlorobenzene MS 1313237-95 ND 23.591 25.000 ug/L 94.4 70-130 <br /> MSD 1313237-95 ND 23.272 25.000 ug/L 1.4 93.1 20 70-130 <br /> 1,1-Dichloroethane MS 1313237-95 ND 22.544 25.000 ug/L 90.2 70-130 <br /> MSD 1313237-95 ND 22.403 25.000 ug/L 0.6 89.6 20 70-130 <br /> 1,1-Dichloroethene MS 1313237-95 ND 25.411 25.000 ug/L 102 70-130 <br /> MSD 1313237-95 ND 24.923 25.000 ug/L 1.9 99.7 20 70-130 <br /> Toluene MS 1313237-95 ND 21.867 25.000 ug/L 87.5 70-130 <br /> MSD 1313237-95 ND 21.667 25.000 ug/L 0.9 86.7 20 70-130 <br /> Trichloroethene MS 1313237-95 ND 25.331 25.000 ug/L 101 70-130 <br /> MSD 1313237-95 ND 25.076 25.000 ug/L 1.0 100 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1313237-95 ND 9.7500 10.000 ug/L 97.5 75-125 <br /> MSD 1313237-95 ND 10.320 10.000 ug/L 5.7 103 75-125 <br /> Toluene-d8(Surrogate) MS 1313237-95 ND 9.8900 10.000 ug/L 98.9 80-120 <br /> MSD 1313237-95 ND 10.160 10.000 ug/L 2.7 102 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1313237-95 ND 10.270 10.000 ug/L 103 80-120 <br /> MSD 1313237-95 ND 10.120 10.000 ug/L 1.5 101 80-120 <br /> The results in this report apply sam lto the es analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> PP <br /> All results listed in this report we for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 29 of 33 <br />