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Laboratories Inc. J'l <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill Reported: 06/26/2009 16:34 <br /> 16885 W. Bernardo Drive Project Number: Air Stripper Tower 2009 <br /> San Diego, CA 92127 Project Manager: Sarah Battelle <br /> Volatile Organic et ) <br /> Quality Control Repo - 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 BSF1087 Matrix Spike 0907636-01 ND 29.970 25.000 ug/L 120 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 28.270 25.000 ug/L 6.0 113 20 70-130 <br /> Bromodichloromethane BSF1087 Matrix Spike 0907636-01 ND 23.600 25.000 ug/L 94.4 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 22.990 25.000 ug/L 2.6 92.0 20 70-130 <br /> Chlorobenzene BSF1087 Matrix Spike 0907636-01 ND 24.410 25.000 ug/L 97.6 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 24.190 25.000 ug/L 0.8 96.8 20 70-130 <br /> Chloroethane BSF1087 Matrix Spike 0907636-01 ND 34.250 25.000 ug/L 137 70-130 Q03 <br /> Matrix Spike Duplicate 0907636-01 ND 32.710 25.000 ug/L 4.5 131 20 70-130 Q03 <br /> 1,4-Dichlorobenzene BSF1087 Matrix Spike 0907636-01 ND 24.670 25.000 ug/L 98.7 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 25.270 25.000 ug/L 2.3 101 20 70-130 <br /> 1,1-Dichloroethane BSF1087 Matrix Spike 0907636-01 ND 27.820 25.000 ug/L 111 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 27.260 25.000 ug/L 1.8 109 20 70-130 <br /> 1,1-Dichloroethene BSF1087 Matrix Spike 0907636-01 ND 26.880 25.000 ug/L 108 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 26.120 25.000 ug/L 3.8 104 20 70-130 <br /> Toluene BSF1087 Matrix Spike 0907636-01 ND 25.740 25.000 ug/L 103 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 25.020 25.000 ug/L 3.0 100 20 70-130 <br /> Trichloroethene BSF1087 Matrix Spike 0907636-01 ND 24.190 25.000 ug/L 96.8 70-130 <br /> Matrix Spike Duplicate 0907636-01 ND 23.170 25.000 ug/L 4.3 92.7 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSF1087 Matrix Spike 0907636-01 ND 9.9500 10.000 ug/L 99.5 76-114 <br /> Matrix Spike Duplicate 0907636-01 ND 9.5500 10.000 ug/L 95.5 76-114 <br /> Toluene-d8(Surrogate) BSF1087 Matrix Spike 0907636-01 ND 10.190 10.000 ug/L 102 88-110 <br /> Matrix Spike Duplicate 0907636-01 ND 9.9800 10.000 ug/L 99.8 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSF1087 Matrix Spike 0907636-01 ND 9.5200 10.000 ug/L 95.2 86-115 <br /> Matrix Spike Duplicate 0907636-01 ND 9.7400 10.000 ug/L 97.4 86-115 <br /> Benzene BSF1126 Matrix Spike 0907582-04 ND 26.510 25.000 ug/L 106 70-130 <br /> Matrix Spike Duplicate 0907582-04 ND 27.500 25.000 ug/L 3.7 110 20 70-130 <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.bciabs.com Page 10 of 23 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />