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Laboratories, Inc. <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 06/28/2017 12:39 <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[F2259 <br />Benzene B[F2259-BS1 LCS 25.070 25.000 ug/L 100 70-130 <br />Bromodichloromethane B[F2259-BSI LCS 27.940 25.000 ug/L 112 70-130 <br />Chlorobenzene <br />B[F2259-BS1 <br />LCS <br />24.280 <br />25.000 <br />ug/L <br />97.1 <br />70-130 <br />Chloroethane <br />B[F2259-BS1 <br />LCS <br />23.610 <br />25.000 <br />ug/L <br />94.4 <br />70-130 <br />1,4 -Dichlorobenzene <br />B[F2259-BS1 <br />LCS <br />23.650 <br />25.000 <br />ug/L <br />94.6 <br />70-130 <br />1,1-Dichloroethane <br />B[F2259-BS1 <br />LCS <br />26.500 <br />25.000 <br />ug/L <br />106 <br />70-130 <br />1,1-Dichloroethene B[F2259-BS1 LCS 27.310 25.000 ug/L 109 70-130 <br />Toluene <br />B[F2259-BSI <br />LCS <br />25.190 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />Trichloroethene <br />B[F2259-BS1 <br />LCS <br />26.750 <br />25.000 <br />ug/L <br />107 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B[F2259-BS1 <br />LCS <br />10.840 <br />10.000 <br />ug/L <br />108 <br />75-125 <br />AftToluene-d8 (Surrogate) <br />B[F2259-BS1 <br />LCS <br />10.070 <br />10.000 <br />ug/L <br />101 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />B[F2259-BS1 <br />LCS <br />10.360 <br />10.000 <br />ug/L <br />104 <br />80-120 <br />[] <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must he 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: 1000620626 4100 Atlas Court Bakersfield, CA 93308 (661) 3274911 FAX (661) 327-1918 www.bclabs.com Page 10 of 12 <br />