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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill-Monthly Reported: 04/14/2010 12:26 <br /> 16885 W.Bernardo Drive Project Number: GTF Effluent <br /> San Diego,CA 92127 Project Manager: Bill Lopez <br /> Volatile Organic Analysis ( ) <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 Recovery RPD Recovery Lab Quals <br /> Benzene BTDO503 Matrix Spike 1004346-01 0.71000 26.200 25.000 ug/L 102 70-130 <br /> Matrix Spike Duplicate 1004346-01 0.71000 28.050 25.000 ug/L 7.0 109 20 70-130 <br /> Bromodichloromethane BTD0503 Matrix Spike 1004346-01 ND 24.720 25.000 ug/L 98,9 70-130 <br /> Matrix Spike Duplicate 1004346-01 ND 24.650 25.000 ug/L 0.3 98.6 20 70-130 <br /> Chlorobenzene BTDO503 Matrix Spike 1004346-01 1.3400 25.780 25.000 ug/L 97.8 70-130 <br /> Matrix Spike Duplicate 1004346-01 1.3400 26.590 25.000 ug/L 3.3 101 20 70-130 <br /> Chloroethane BTDO503 Matrix Spike 1004346-01 ND 23.900 25.000 ug/L 95.6 70-130 <br /> Matrix Spike Duplicate 1004346-01 ND 25.930 25.000 ug/L 8.1 104 20 70-130 <br /> 1,4-Dichlorobenzene BTDO503 Matrix Spike 1004346-0/ 0.50000 25.330 25.000 ug/L 99.3 70-130 <br /> Matrix Spike Duplicate 1004346-01 0.50000 25.900 25.000 ug/L 2.3 102 20 70-130 <br /> 1,1-Dichloroethane BTDO503 Matrix Spike 1004346-01 2.5900 25.950 25.000 ug/L 93.4 70-130 <br /> Matrix Spike Duplicate 1004346-01 2.5900 27.020 25.000 ug/L 4.5 97.7 20 70-130 <br /> 1,1-Dichloroethene BTD0503 Matrix Spike 1004346-01 0.16000 24.030 25.000 ug/L 95.5 70-130 <br /> Matrix Spike Duplicate 1004346-01 0.16000 25.290 25.000 ug/L 5.1 101 20 70-130 <br /> Toluene BTDO503 Matrix Spike 1004346-01 ND 26.480 25.000 ug/L 106 70-130 <br /> Matrix Spike Duplicate 1004346-01 ND 26.780 25.000 ug/L 1.1 107 20 70-130 <br /> Trichloroethene BTDO503 Matrix Spike 1004346-01 3.6000 27.200 25.000 ug/L 94.4 70-130 <br /> Matrix Spike Duplicate 1004346-01 3.6000 27.710 25.000 ug/L 2.1 96.4 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BTDO503 Matrix Spike 1004346-01 ND 9.7500 10.000 ug/L 97.5 76-114 <br /> Matrix Spike Duplicate 1004346-01 ND 9.9300 10.000 ug/L 99.3 76-114 <br /> Toluene-d8(Surrogate) BTD0503 Matrix Spike 1004346-01 ND 10.270 10.000 ug/L 103 88-110 <br /> Matrix Spike Duplicate 1004346-01 ND 10.170 10.000 ug/L 102 88-110 <br /> 4-Bromofluorobenzene(Surrogate) STDO503 Matrix Spike 1004346-01 ND 10.150 10.000 ug/L 102 86-115 <br /> Matrix Spike Duplicate 1004346-01 ND 10.260 10.000 ug/L 103 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)3274911 FAX(661)327-1918 www.bc[abs.com Page 7 of 15 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A ti <br />