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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: 8017.1030 <br />Project Manager: Bill Lopez <br />Volatile Organic Analysis (EPA Method 826013) <br />Quality Control Report - Precision & Accuracy <br />Control Limits <br />Source Source Spike Percent Percent Lab <br />Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. 7his 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 intemretation. <br />Report ID: 1000630727 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 12 of 16 <br />QC Batch ID: B[G1172 <br />J Used client sample: N <br />Benzene <br />MS <br />1719284-01 <br />ND <br />24.710 <br />25.000 <br />ug/L <br />98.8 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />25.770 <br />25.000 <br />ug/L <br />4.2 <br />103 <br />20 <br />70-130 <br />Bromodichloromethane <br />MS <br />1719284-01 <br />ND <br />26.840 <br />25.000 <br />ug/L <br />107 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />26.940 <br />25.000 <br />ug/L <br />0.4 <br />108 <br />20 <br />70-130 <br />Chlorobenzene <br />MS <br />1719284-01 <br />ND <br />23.870 <br />25.000 <br />ug/L <br />95.5 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />22.860 <br />25.000 <br />ug/L <br />4.3 <br />91.4 <br />20 <br />70-130 <br />Chloroethane <br />MS <br />1719284-01 <br />ND <br />26.150 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />27.320 <br />25.000 <br />ug/L <br />4.4 <br />109 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1719284-01 <br />ND <br />23.870 <br />25.000 <br />ug/L <br />95.5 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />22.930 <br />25.000 <br />ug/L <br />4.0 <br />91.7 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1719284-01 <br />ND <br />25.860 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />27.010 <br />25.000 <br />ug/L <br />4.4 <br />108 <br />20 <br />70-130 <br />1-Dichloroethene <br />MS <br />1719284-01 <br />ND <br />26.770 <br />25.000 <br />ug/L <br />107 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />28.270 <br />25.000 <br />ug/L <br />5.5 <br />113 <br />20 <br />70-130 <br />Toluene <br />MS <br />1719284-01 <br />ND <br />25.130 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />25.570 <br />25.000 <br />ug/L <br />1.7 <br />102 <br />20 <br />70-130 <br />Trichloroethene <br />MS <br />1719284-01 <br />ND <br />24.790 <br />25.000 <br />ug/L <br />99.2 <br />70-130 <br />MSD <br />1719284-01 <br />ND <br />25.360 <br />25.000 <br />ug/L <br />2.3 <br />101 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />MS <br />1719284-01 <br />ND <br />9.5100 <br />10.000 <br />ug/L <br />95.1 <br />75-125 <br />MSD <br />1719284-01 <br />ND <br />9.6800 <br />10.000 <br />ug/L <br />1.8 <br />96.8 <br />75-125 <br />Toluene -d8 (Surrogate) <br />MS <br />1719284-01 <br />ND <br />10.240 <br />10.000 <br />ug/L <br />102 <br />80-120 <br />MSD <br />1719284-01 <br />ND <br />9.8100 <br />10.000 <br />ug/L <br />4.3 <br />98.1 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />MS <br />1719284-01 <br />ND <br />10.450 <br />10.000 <br />ug/L <br />104 <br />80-120 <br />MSD <br />1719284-01 <br />ND <br />9.8000 <br />10.000 <br />ug/L <br />6.4 <br />98.0 <br />80-120 <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. 7his 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 intemretation. <br />Report ID: 1000630727 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 12 of 16 <br />