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Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 07/05/2017 11:11 <br />11415 W. Bernardo Ct, Ste 220 Project: Forward LF Domestic Well Sampling <br />San Diego, CA 92127 Project Plumber: S017.1030 <br />Project Manager: Bill Lopez <br />Volatile Organic Analysis (EPA Method 82606) <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 Qualls <br />QC Batch ID: B[F2800 <br />Benzene <br />B[F2800-BS1 <br />LCS <br />25.760 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />Bromodichloromethane <br />B[F2800-BS1 <br />LCS <br />23.250 <br />25.000 <br />ug/L <br />93.0 <br />70-130 <br />Chlorobenzene <br />B[F2800-BS1 <br />LCS <br />24.320 <br />25.000 <br />ug/L <br />97.3 <br />70 - 130 <br />Chloroethane <br />B[F2800-BS1 <br />LCS <br />24.340 <br />25.000 <br />ug/L <br />97.4 <br />70-130 <br />1,4 -Dichlorobenzene <br />B[F2800-BS1 <br />LCS <br />22.600 <br />25.000 <br />ug/L <br />90.4 <br />70-130 <br />1,1-Dichloroethane <br />B[F2800-BS1 <br />LCS <br />22.900 <br />25.000 <br />ug/L <br />91.6 <br />70-130 <br />1,1-Dichloroethene <br />B[F2800-BS1 <br />LCS <br />23.430 <br />25.000 <br />ug/L <br />93.7 <br />70-130 <br />Toluene <br />B[F2800-BS1 <br />LCS <br />24.860 <br />25.000 <br />ug/L <br />99.4 <br />70-130 <br />Trichloroethene <br />B[F2800-BS1 <br />LCS <br />24.640 <br />25.000 <br />ug/L <br />98.6 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B[F2800-BS1 <br />LCS <br />9.1200 <br />10.000 <br />ug/L <br />91.2 <br />75-125 <br />,jJftToluene-d8 (Surrogate) <br />4-Bromofluorobenzene (Surrogate) <br />B[F2800-BS1 <br />B[F2800-BSI <br />LCS <br />LCS <br />10.480 <br />9.7300 <br />10.000 <br />10.000 <br />ug/L <br />ug/L <br />105 <br />97.3 <br />80-120 <br />80-120 <br />D <br />The results in this report apply to the samples analyzed in accordance with the chain ojcustody 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: 1000622453 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 10 of 12 <br />