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Laboratories, Inc. <br />Environmental Testing Laboratory Since 1949 <br />CB&I Reported: 08/01/2013 15:51 <br />180 Promenade Circle, Suite 320 Project: Corral Hollow LF, SJ County <br />Sacramento, CA 95834 Project Number. 149271 <br />Project Manager: Sheila Richgels <br />Volatile Organic Analysis (EPA Method) <br />Quality Control Repo - Laboratory Control Sample <br />Control Limits <br />Spike Percent Percent Lab <br />Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br />QC Batch ID: BWG1455 <br />Benzene <br />BWG1455-BS1 <br />LCS <br />24.570 <br />25.000 <br />ug/L <br />98.3 <br />70-130 <br />Bromodichloromethane <br />BWG1455-BSI <br />LCS <br />24.880 <br />25.000 <br />ug/L <br />99.5 <br />70-130 <br />Chlorobenzene <br />BWG1455-BSI <br />LCS <br />23.930 <br />25.000 <br />ug/L <br />95.7 <br />70-130 <br />Chloroethane <br />BWG1455-BSI <br />LCS <br />24.500 <br />25.000 <br />ug/L <br />98.0 <br />70-130 <br />1,4 -Dichlorobenzene <br />BWG1455-BS1 <br />LCS <br />25.180 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />1,1-Dichloroethane <br />BWG1455-BS1 <br />LCS <br />24.610 <br />25.000 <br />ug/L <br />98.4 <br />70-130 <br />1,1-Dichloroethene <br />BWG1455-BSI <br />LCS <br />25.180 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />Toluene <br />BWG1455-BSI <br />LCS <br />24.150 <br />25.000 <br />ug/L <br />96.6 <br />70-130 <br />Trichloroethene <br />BWG1455-BS1 <br />LCS <br />23.720 <br />25.000 <br />ug/L <br />94.9 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BWG1455-BS1 <br />LCS <br />9.3300 <br />10.000 <br />ug/L <br />93.3 <br />75-125 <br />Toluene -d8 (Surrogate) <br />BWG1455-BS1 <br />LCS <br />10.160 <br />10.000 <br />ug/L <br />102 <br />80 -120 <br />4-Bromofluorobenzene (Surrogate) <br />BWG1455-BS1 <br />LCS <br />9.8600 <br />10.000 <br />ug/L <br />98.6 <br />80-120 <br />The results in this report apply to the samples <br />analyzed in accordance with <br />the chain of custody document. This analytical report must be <br />reproduced in its entirety. <br />All results Iuaed in this report are <br />for the exclusive use of the submitting party. BC Laboratories, Inc. assumes <br />no responsibility for report <br />alteration, separation, detachment or third party interpretation. <br />4100 Atlas Court <br />Bakersfield, <br />CA 93308 <br />(661) 327-4911 <br />FAX(661)327-1918 <br />www.bdabs.com <br />Page 53 of 58 <br />