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1 1 <br /> Laboratories Inc. , <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Reported: 05/03/2011 15:58 <br /> 16885 W.Bernardo Drive 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 Method260) <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: BUD1868 Used client sample: N <br /> Benzene MS 1106418-01 ND 24.650 25.000 ug/L 98.6 70-130 <br /> MSD 1106418-01 ND 24.080 25.000 ug/L 2.3 96.3 20 70-130 <br /> Bromodichloromethane MS 1106418-01 ND 22.720 25.000 ug/L 90.9 70-130 <br /> MSD 1106418-01 ND 24.130 25.000 ug/L 6.0 96.5 20 70-130 <br /> Chlorobenzene MS 1106418-01 ND 25.630 25.000 ug/L 103 70-130 <br /> MSD 1106418-01 ND 25.320 25.000 ug/L 1.2 101 20 70-130 <br /> Chloroethane MS 1106418-01 ND 24.490 25.000 ug/L 98.0 70-130 <br /> MSD 1106418-01 ND 22.780 25.000 ug/L 7.2 91.1 20 70-130 <br /> 1,4-Dichlorobenzene MS 1106418-01 ND 25.250 25.000 ug/L 101 70-130 <br /> MSD 1106418-01 ND 25.310 25.000 ug/L 0.2 101 20 70-130 <br /> 1,1-Dichloroethane MS 1106418-01 ND 24.200 25.000 ug/L 96.8 70-130 <br /> MSD 1106418-01 ND 23.930 25.000 ug/L 1.1 95.7 20 70-130 <br /> 1,1-Dichloroethene MS 1106418-01 ND 25.230 25.000 ug/L 101 70-130 <br /> MSD 1106418-01 ND 23.530 25.000 ug/L 7.0 94.1 20 70-130 <br /> Toluene MS 1106418-01 ND 25.490 25.000 ug/L 102 70-130 <br /> MSD 1106418-01 ND 24.770 25.000 ug/L 2.9 99.1 20 70-130 <br /> Trichloroethene MS 1106418-01 ND 25.480 25.000 ug/L 102 70-130 <br /> MSD 1106418-01 ND 24.500 25.000 ug/L 3.9 98.0 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1106418-01 ND 9.1800 10.000 ug/L 91.8 76-114 <br /> MSD 1106418-01 ND 9.8900 10.000 ug/L 7.4 98.9 76-114 <br /> Toluene-d8(Surrogate) MS 1106418-01 ND 10.180 10.000 ug/L 102 88-110 <br /> MSD 1106418-01 ND 10.090 10.000 ug/L 0.9 101 88-110 <br /> 4-Bromofluorobenzene(Surrogate) MS 1106418-01 ND 10.050 10.000 ug/L 100 86-115 <br /> MSD 1106418-01 ND 10.380 10.000 ug/L 3.2 104 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 parry interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bciabs.com Page 11 of 12 <br />