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Laboratories, Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill-Monthly Reported: 12/10/2009 15:29 <br /> 16885 W. Bernardo Drive Project Number: [none] <br /> San Diego,CA 92127 Project Manager: BIII Lopez <br /> Volatile r i Analysis (EPA Method 8260) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recove RPD Recovery Lab Quals <br /> Benzene BSK1695 Matrix Spike 0915623-07 ND 25.950 25.000 ug/L 104 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 27.030 25.000 ug/L 4.1 108 20 70-130 <br /> Bromodichloromethane BSK1695 Matrix Spike 0915623-07 ND 19.690 25.000 ug/L 78.8 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 20.250 25.000 ug/L 2.8 81.0 20 70-130 <br /> Chlorobenzene BSK1695 Matrix Spike 0915623-07 ND 23.440 25.000 ug/L 93.8 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 24.440 25.000 ug/L 4.2 97.8 20 70-130 <br /> Chloroethane BSK1695 Matrix Spike 0915623-07 ND 23.670 25.000 ug/L 94.7 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 25.850 25.000 ug/L 8.8 103 20 70-130 <br /> 1,4-Dichlorobenzene BSK1695 Matrix Spike 0915623-07 ND 21.750 25.000 ug/L 87.0 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 23.620 25.000 ug/L 8.2 94.5 20 70-130 <br /> 1,1-Dichloroethane BSK1695 Matrix Spike 0915623-07 ND 30.820 25.000 ug/L 123 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 32.360 25.000 ug/L 4.9 129 20 70-130 <br /> 1,1-Dichloroethene BSK1695 Matrix Spike 0915623-07 ND 26.860 25.000 ug/L 107 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 29.110 25.000 ug/L 8.0 116 20 70-130 <br /> Toluene BSK1695 Matrix Spike 0915623-07 ND 24.530 25.000 ug/L 98.1 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 25.600 25.000 ug/L 4.3 102 20 70-130 <br /> Trichloroethene BSK1695 Matrix Spike 0915623-07 ND 24.780 25.000 ug/L 99.1 70-130 <br /> Matrix Spike Duplicate 0915623-07 ND 27.120 25.000 ug/L 9.0 108 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSK1695 Matrix Spike 0915623-07 ND 9.2400 10.000 ug/L 92.4 76-114 <br /> Matrix Spike Duplicate 0915623-07 ND 8.6900 10.000 ug/L 86.9 76-114 <br /> Toluene-d8(Surrogate) BSK1695 Matrix Spike 0915623-07 ND 10.650 10.000 ug/L 106 88-110 <br /> Matrix Spike Duplicate 0915623-07 ND 10.710 10.000 ug/L 107 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSK1695 Matrix Spike 0915623-07 ND 9.9500 10.000 ug/L 99.5 86-115 <br /> Matrix Spike Duplicate 0915623-07 ND 9.9700 10.000 ug/L 99.7 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 14-of 27 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />