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Laboratories "nalU[ <br /> Environmental Testing Laboratory Since 1949 <br /> aw Reported: 01/20/2012 16:23 <br /> 0 Promenade Circle,Suite 320 Project: North County LF,SJ County <br /> Sacramento,CA 95834 Project Number. 139874 Leachate <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 Qualls <br /> QC Batch ID: BVA0424 Used client sample: N <br /> Benzene MS 1119798-83 ND 26.150 25.000 ug/L 105 70-130 <br /> MSD 1119798-83 ND 25.640 25.000 ug/L 2.0 103 20 70-130 <br /> Bromodichloromethane MS 1119798-83 ND 22.180 25.000 ug/L 88.7 70-130 <br /> MSD 1119798-83 ND 21.850 25.000 ug/L 1.5 87.4 20 70-130 <br /> Chlorobenzene MS 1119798-83 ND 21.920 25.000 ug/L 87.7 70-130 <br /> MSD 1119798-83 ND 21.570 25.000 ug/L 1.6 86.3 20 70-130 <br /> Chloroethane MS 1119798-83 ND 25.240 25.000 ug/L 101 70-130 <br /> MSD 1119798-83 ND 26.200 25.000 ug/L 3.7 105 20 70-130 <br /> 1,4-Dichlorobenzene MS 1119798-83 ND 21.570 25.000 ug/L 86.3 70-130 <br /> MSD 1119798-83 ND 20.990 25.000 ug/L 2.7 84.0 20 70-130 <br /> 1,1-Dichloroethane MS 1119798-83 ND 26.130 25.000 ug/L 105 70-130 <br /> MSD 1119798-83 ND 25.290 25.000 ug/L 3.3 101 20 70-130 <br /> isDichloroethene MS 1119798-83 ND 29.050 25.000 ug/L 116 70-130 <br /> MSD 1119798-83 ND 28.770 25.000 ug/L 1.0 115 20 70-130 <br /> Toluene MS 1119798-83 ND 23.190 25.000 ug/L 92.8 70-130 <br /> MSD 1119798-83 ND 22.520 25.000 ug/L 2.9 90.1 20 70-130 <br /> Trichloroethene MS 1119798-83 ND 25.630 25.000 ug/L 103 70-130 <br /> MSD 1119798-83 ND 24.690 25.000 ug/L 3.7 98.8 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1119798-83 ND 9.4300 10.000 ug/L 94.3 76-114 <br /> MSD 1119798-83 ND 9.8400 10.000 ug/L 4.3 98.4 76-114 <br /> Toluene-d8(Surrogate) MS 1119798-83 ND 10.280 10.000 ug/L 103 88-110 <br /> MSD 1119798-83 ND 10.200 10.000 ug/L 0.8 102 88-110 <br /> 4-Bromofluorobenzene(Surrogate) MS 1119798-83 ND 10.090 10.000 ug/L 101 86-115 <br /> MSD 1119798-83 ND 10.360 10.000 ug/L 2.6 104 86-115 <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 wrovw.bdabs.com Page 22 of 26 <br />