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® Laboratories Inc. <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 07/28/2017 16:02 <br />11415 W. Bernardo Ct, Ste 220 Project: Forward LF Domestic Well Sampling <br />San Diego, CA 92127 Project Number: S017.1030 <br />Project Manager: Bill Lopez <br />Volatile Organic Analysis (EPA Method 826013) <br />Quality Control Report - 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: BIG1172 <br />Benzene B[G1172-BS1 LCS 26.980 25.000 ug/L 108 70-130 <br />Bromodichloromethane B[G1172-BS1 LCS 28.360 25.000 ug/L 113 70-130 <br />Chlorobenzene <br />B[G1172-BS1 <br />LCS <br />25.010 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />Chloroethane <br />B[G1172-BS1 <br />LCS <br />28.440 <br />25.000 <br />ug/L <br />114 <br />70-130 <br />1,4 -Dichlorobenzene <br />B[GI172-BS1 <br />LCS <br />25.030 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />1,1-Dichloroethane <br />B[G1172-BS1 <br />LCS <br />28.490 <br />25.000 <br />ug/L <br />114 <br />70-130 <br />1,1-Dichloroethene <br />B[G1172-BS1 <br />LCS <br />29.440 <br />25.000 <br />ug/L <br />118 <br />70-130 <br />Toluene <br />B[G1172-BS1 <br />LCS <br />26.420 <br />25.000 <br />ug/L <br />106 <br />70-130 <br />Trichloroethene <br />B[G1172-BSI <br />LCS <br />26.350 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B[G1172-BSI <br />LCS <br />9.9800 <br />10.000 <br />ug/L <br />99.8 <br />75-125 <br />T0luene-d8 (Surrogate) <br />B[G1172-BS1 <br />LCS <br />9.6800 <br />10.000 <br />ug/L <br />96.8 <br />80-120 <br />® 4 Bromofluorobenzene (Surrogate) <br />B[G1172-BS1 <br />LCS <br />10.350 <br />10.000 <br />ug/L <br />104 <br />80-120 <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 />Report ID: 1000630727 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 11 of 16 <br />