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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> CB&I Reported: 09/06/2013 15:00 <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: BWH1938 Used client sample: N <br /> Benzene MS 1316295-28 ND 26.079 25.000 ug/L 104 70-130 <br /> MSD 1316295-28 ND 25.150 25.000 ug/L 3.6 101 20 70-130 <br /> Bromodichloromethane MS 1316295-28 ND 25.426 25.000 ug/L 102 70-130 <br /> MSD 1316295-28 ND 25.295 25.000 ug/L 0.5 101 20 70-130 <br /> Chlorobenzene MS 1316295-28 ND 25.270 25.000 ug/L 101 70-130 <br /> MSD 1316295-28 ND 23.812 25.000 ug/L 5.9 95.2 20 70-130 <br /> Chloroethane MS 1316295-28 ND 28.852 25.000 ug/L 115 70-130 <br /> MSD 1316295-28 ND 26.711 25.000 ug/L 7.7 107 20 70-130 <br /> 1,4-Dichlorobenzene MS 1316295-28 ND 23.774 25.000 ug/L 95.1 70-130 <br /> MSD 1316295-28 ND 22.500 25.000 ug/L 5.5 90.0 20 70-130 <br /> 1,1-Dichloroethane MS 1316295-28 ND 26.370 25.000 ug/L 105 70-130 <br /> MSD 1316295-28 ND 24.201 25.000 ug/L 8.6 96.8 20 70-130 <br /> 1,1-Dichloroethene MS 1316295-28 ND 27.988 25.000 ug/L 112 70-130 <br /> MSD 1316295-28 ND 25.947 25.000 ug/L 7.6 104 20 70-130 <br /> Toluene MS 1316295-28 ND 24.176 25.000 ug/L 96.7 70-130 <br /> MSD 1316295-28 ND 23.292 25.000 ug/L 3.7 93.2 20 70-130 <br /> Trichloroethene MS 1316295-28 ND 31.245 25.000 ug/L 125 70-130 <br /> MSD 1316295-28 ND 29.546 25.000 ug/L 5.6 118 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1316295-28 ND 11.220 10.000 ug/L 112 75-125 <br /> MSD 1316295-28 ND 10.690 10.000 ug/L 4.8 107 75-125 <br /> Toluene-d8(Surrogate) MS 1316295-28 ND 10.340 10.000 ug/L 103 80-120 <br /> MSD 1316295-28 ND 10.600 10.000 ug/L 2.5 106 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1316295-28 ND 10.520 10.000 ug/L 105 80-120 <br /> MSD 1316295-28 ND 10.540 10.000 ug/L 0.2 105 80-120 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are 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.bdabs.com Page 16 of 20 <br />