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Laboratories <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Reported: 02/15/2012 16:55 <br /> 11415 W.Bernardo Ct,Ste 220 Project: Forward Landfill-Monthly A.S.Tower <br /> San Diego,CA 92127 Project Number: [none] <br /> Project Manager: Bill Lopez <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: BVB0877 Used client sample: Y-Description: MW-9A, 02/10/2012 08:14 <br /> Benzene MS 1202495-01 ND 25.670 25.000 ug/L 103 70-130 <br /> MSD 1202495-01 ND 24.120 25.000 ug/L 6.2 96.5 20 70-130 <br /> Bromodichloromethane MS 1202495-01 ND 23.490 25.000 ug/L 94.0 70-130 <br /> MSD 1202495-01 ND 25.060 25.000 ug/L 6.5 100 20 70-130 <br /> Chlorobenzene MS 1202495-01 ND 26.380 25.000 ug/L 106 70-130 <br /> MSD 1202495-01 ND 25.670 25.000 ug/L 2.7 103 20 70-130 <br /> Chloroethane MS 1202495-01 ND 26.400 25.000 ug/L 106 70-130 <br /> MSD 1202495-01 ND 24.740 25.000 ug/L 6.5 99.0 20 70-130 <br /> 1,4-Dichlorobenzene MS 1202495-01 ND 27.730 25.000 ug/L 111 70-130 <br /> MSD 1202495-01 ND 26.940 25.000 ug/L 2.9 108 20 70-130 <br /> 1,1-Dichloroethane MS 1202495-01 ND 25.290 25.000 ug/L 101 70-130 <br /> MSD 1202495-01 ND 24.450 25.000 ug/L 3.4 97.8 20 70-130 <br /> 1,1-Dichloroethene MS 1202495-01 ND 25.460 25.000 ug/L 102 70-130 <br /> MSD 1202495-01 ND 24.210 25.000 ug/L 5.0 96.8 20 70-130 <br /> Toluene MS 1202495-01 ND 25.990 25.000 ug/L 104 70-130 <br /> MSD 1202495-01 ND 24.640 25.000 ug/L 5.3 98.6 20 70-130 <br /> Trichloroethene MS 1202495-01 ND 25.210 25.000 ug/L 101 70-130 <br /> MSD 1202495-01 ND 23.930 25.000 ug/L 5.2 95.7 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1202495-01 ND 10.000 10.000 ug/L 100 76-114 <br /> MSD 1202495-01 ND 9.9600 10.000 ug/L 0.4 99.6 76-114 <br /> Toluene-d8(Surrogate) MS 1202495-01 ND 10.120 10.000 ug/L 101 88-110 <br /> MSD 1202495-01 ND 9.9400 10.000 ug/L 1.8 99.4 88-110 <br /> 4-Bromofluorobenzene(Surrogate) MS 1202495-01 ND 9.9700 10.000 ug/L 99.7 86-115 <br /> MSD 1202495-01 ND 9.9400 10.000 ug/L 0.3 99.4 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 www.bclabs.com Page 11 of 12 <br />