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Laboratories Inc. kul' <br />® Environmental Testing Laboratory Since 1949 <br />CB&I Reported: 02/20/2014 9:55 <br />180 Promenade Circle, Suite 320 Project: North County LF, SJ County <br />Sacramento, CA 95834 Project Number: Anuual Leachate 149270 <br />Project Manager: Sheila Richgels <br />Volatile Organic Analysis (EPA Method 826013) <br />Quality Control Report - Laboratory Control Sample <br />Control Limits <br />Spike Percent Percent Lab <br />Constituent <br />QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br />QC Batch ID, BXA1889 <br />Benzene <br />BXA1889-BS1 LCS 30.049 25.000 ug/L 120 70-130 <br />Bromodichloromethane <br />BXA1889-BS1 LCS 27.419 25.000 ug/L 110 70-130 <br />Chlorobenzene <br />BXA1889-BS1 LCS 24.170 25.000 ug/L 96.7 70-130 <br />Chloroethane <br />BXA1889-BS1 LCS 30.440 25.000 ug/L 122 70-130 <br />1,4 -Dichlorobenzene <br />BXA1889-BS1 LCS 24.391 25.000 ug/L 97.6 70-130 <br />1, 1 -Dichloroethane <br />BXA1889-BS1 LCS 30.191 25.000 ug/L 121 70-130 <br />1,1-Dichloroethene <br />BXA1889-BS1 LCS 32.237 25.000 ug/L 129 70-130 <br />Toluene <br />BXA1889-BS1 LCS 27.470 25.000 ug/L 110 70-130 <br />Trichloroethene <br />BXA1889-BSI LCS 28.569 25.000 ug/L 114 70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BXA1889-BSI LCS 10.970 10.000 ug/L 110 75-125 <br />Toluene -d8 (Surrogate) <br />BXA1889-BS1 LCS 10.380 10.000 ug/L 104 80-120 <br />4-Bromofluorobenzene (Surrogate) <br />BXA1889-BS1 LCS 10.760 10.000 ug/L 108 80-120 <br />The results in this report a to the samples analyzed in accordance with the chain custody document. This analytical report must be reproduced in its entire <br />P PP1Y lzo P Y- f d Y Y P P iY <br />All results listed in this report are <br />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 22 of 28 <br />