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Laboratories Inc. ul- <br /> Environmental Testing Laboratory Since 1949 <br /> CB&I Reported: 08/12/2013 15:10 <br /> 180 Promenade Circle,Suite 320 Project: North County LF,SJ County <br /> Sacramento,CA 95834 Project Number: 149270 <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: BWG2209 Used client sample: N <br /> Benzene MS 1315876-03 ND 24.950 25.000 ug/L 99.8 70-130 <br /> MSD 1315876-03 ND 23.810 25.000 ug/L 4.7 95.2 20 70-130 <br /> Bromodichloromethane MS 1315876-03 ND 28.250 25.000 ug/L 113 70-130 <br /> MSD 1315876-03 ND 27.160 25.000 ug/L 3.9 109 20 70-130 <br /> Chlorobenzene MS 1315876-03 ND 25.670 25.000 ug/L 103 70-130 <br /> MSD 1315876-03 ND 25.480 25.000 ug/L 0.7 102 20 70-130 <br /> Chloroethane MS 1315876-03 ND 26.010 25.000 ug/L 104 70-130 <br /> MSD 1315876-03 ND 25.150 25.000 ug/L 3.4 101 20 70-130 <br /> 1,4-Dichlorobenzene MS 1315876-03 ND 28.630 25.000 ug/L 115 70-130 <br /> MSD 1315876-03 ND 27.400 25.000 ug/L 4.4 110 20 70-130 <br /> 1,1-Dichloroethane MS 1315876-03 ND 25.460 25.000 ug/L 102 70-130 <br /> MSD 1315876-03 ND 24.100 25.000 ug/L 5.5 96.4 20 70-130 <br /> 1,1-Dichloroethene MS 1315876-03 ND 26.150 25.000 ug/L 105 70-130 <br /> MSD 1315876-03 ND 24.740 25.000 ug/L 5.5 99.0 20 70-130 <br /> Toluene MS 1315876-03 ND 25.130 25.000 ug/L 101 70-130 <br /> MSD 1315876-03 ND 24.680 25.000 ug/L 1.8 98.7 20 70-130 <br /> Trichloroethene MS 1315876-03 ND 25.260 25.000 ug/L 101 70-130 <br /> MSD 1315876-03 ND 24.880 25.000 ug/L 1.5 99.5 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1315876-03 ND 10.560 10.000 ug/L 106 75-125 <br /> MSD 1315876-03 ND 9.7900 10.000 ug/L 7.6 97.9 75-125 <br /> Toluene-d8(Surrogate) MS 1315876-03 ND 9.9200 10.000 ug/L 99.2 80-120 <br /> MSD 1315876-03 ND 9.9300 10.000 ug/L 0.1 99.3 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1315876-03 ND 10.530 10.000 ug/L 105 80-120 <br /> MSD 1315876-03 ND 10.350 10.000 ug/L 1.7 104 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 patty. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or tbird party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 32 of 36 <br />