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® ratrleSInc. ' <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill-Monthly A.S.Tower Reported: 12/17/2009 16:28 <br /> 16885 W. Bernardo Drive Project Number: [none] <br /> San Diego,CA 92127 Project Manager: Bill Lopez <br /> Volatile i lis (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 Recoveg Lab Quals <br /> Benzene BSL0958 Matrix Spike 0916599-02 ND 25.650 25.000 ug/L 103 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 25.300 25.000 ug/L 1.4 101 20 70-130 <br /> Bromodichloromethane BSL0958 Matrix Spike 0916599-02 ND 25.370 25.000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 25.240 25.000 ug/L 0.5 101 20 70-130 <br /> Chlorobenzene BSL0958 Matrix Spike 0916599-02 ND 24.670 25.000 ug/L 98.7 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 24.490 25.000 ug/L 0.7 98.0 20 70-130 <br /> Chloroethane BSL0958 Matrix Spike 0916599-02 ND 19.220 25.000 ug/L 76.9 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 20.220 25.000 ug/L 5.1 80.9 20 70-130 <br /> 1,4-Dichlorobenzene BSL0958 Matrix Spike 0916599-02 ND 25.130 25.000 ug/L 101 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 26.030 25.000 ug/L 3.5 104 20 70-130 <br /> 1,1-Dichloroethane BSL0958 Matrix Spike 0916599-02 ND 25.930 25.000 ug/L 104 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 27.690 25.000 ug/L 6.6 111 20 70-130 <br /> 1,1-Dichloroethene BSL0958 Matrix Spike 0916599-02 ND 26.930 25.000 ug/L 108 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 31.200 25.000 ug/L 14.7 125 20 70-130 <br /> Toluene BSL0958 Matrix Spike 0916599-02 ND 23.390 25.000 ug/L 93.6 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 23.540 25.000 ug/L 0.6 94.2 20 70-130 <br /> Trichloroethene BSL0958 Matrix Spike 0916599-02 ND 25.390 25.000 ug/L 102 70-130 <br /> Matrix Spike Duplicate 0916599-02 ND 25.930 25.000 ug/L 2.1 104 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSL0958 Matrix Spike 0916599-02 ND 10.650 10.000 ug/L 106 76-114 <br /> Matrix Spike Duplicate 0916599-02 ND 9.4700 10.000 ug/L 94.7 76-114 <br /> Toluene-d8(Surrogate) BSL0958 Matrix Spike 0916599-02 ND 9.9900 10.000 ug/L 99.9 88-110 <br /> Matrix Spike Duplicate 0916599-02 ND 9.6400 10.000 ug/L 96.4 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSL0958 Matrix Spike 0916599-02 ND 10.450 10.000 ug/L 104 86-115 <br /> Matrix Spike Duplicate 0916599-02 ND 10.090 10.000 ug/L 101 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 6 of 11 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />