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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> aw Reported: 05/02/2013 9:32 <br /> 180 Promenade Circle,Suite 320 Project: Harney Lane,S.J.County <br /> Sacramento,CA 95834 Project Number. 139866-Resample <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: BWC0366 Used client sample: N <br /> Benzene MS 1304557-01 0.10000 23.610 25.000 ug/L 94.0 70-130 <br /> MSD 1304557-01 0.10000 23.900 25.000 ug/L 1.2 95.2 20 70-130 <br /> Bromodichloromethane MS 1304557-01 ND 27.770 25.000 ug/L 111 70-130 <br /> MSD 1304557-01 ND 28.280 25.000 ug/L 1.8 113 20 70-130 <br /> Chlorobenzene MS 1304557-01 ND 25.320 25.000 ug/L 101 70-130 <br /> MSD 1304557-01 ND 25.300 25.000 ug/L 0.1 101 20 70-130 <br /> Chloroethane MS 1304557-01 ND 25.530 25.000 ug/L 102 70-130 <br /> MSD 1304557-01 ND 26.170 25.000 ug/L 2.5 105 20 70-130 <br /> 1,4-Dichlorobenzene MS 1304557-01 ND 25.490 25.000 ug/L 102 70-130 <br /> MSD 1304557-01 ND 24.850 25.000 ug/L 2.5 99.4 20 70-130 <br /> 1,1-Dichloroethane MS 1304557-01 ND 24.770 25.000 ug/L 99.1 70-130 <br /> MSD 1304557-01 ND 25.590 25.000 ug/L 3.3 102 20 70-130 <br /> Dichloroethene MS 1304557-01 ND 26.730 25.000 ug/L 107 70-130 <br /> MSD 1304557-01 ND 27.180 25.000 ug/L 1.7 109 20 70-130 <br /> Toluene MS 1304557-01 0.47000 25.520 25.000 ug/L 100 70-130 <br /> MSD 1304557-01 0.47000 26.120 25.000 ug/L 2.3 103 20 70-130 <br /> Trichloroethene MS 1304557-01 0.16000 24.930 25.000 ug/L 99.1 70-130 <br /> MSD 1304557-01 0.16000 25.250 25.000 ug/L 1.3 100 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1304557-01 ND 10.380 10.000 ug/L 104 75-125 <br /> MSD 1304557-01 ND 10.150 10.000 ug/L 2.2 102 75-125 <br /> Toluene-d8(Surrogate) MS 1304557-01 ND 9.9000 10.000 ug/L 99.0 80-120 <br /> MSD 1304557-01 ND 10.170 10.000 ug/L 2.7 102 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1304557-01 ND 10.410 10.000 ug/L 104 80-120 <br /> MSD 1304557-01 ND 10.310 10.000 ug/L 1.0 103 80-120 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report muss 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.bclabs.com Page 21 of 22 <br />