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Liabo to es, Inc <br />Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 06/28/2017 14:45 <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 82606) <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 />Chlorobenzene MS 1717229-01 ND 27.660 25.000 ug/L 111 70-130 <br />MSD 1717229-01 ND 26.060 25.000 ug/L 6.0 104 20 70-130 <br />Chloroethane <br />MS <br />1717229-01 <br />ND <br />29.190 <br />25.000 <br />ug/L <br />80-120 <br />QC Batch ID: B[F2271 <br />Used client sample: <br />N <br />9.9300 <br />MSD <br />1717229-01 <br />ND <br />28.000 <br />Benzene <br />MS 1717229-01 <br />ND <br />29.560 <br />25.000 <br />ug/L <br />118 <br />70-130 <br />1717229-01 <br />MSD 1717229-01 <br />ND <br />29.060 <br />25.000 <br />ug/L 1.7 <br />116 <br />20 70-130 <br />Bromodichloromethane <br />MS 1717229-01 <br />ND <br />30.300 <br />25.000 <br />ug/L <br />121 <br />70-130 <br />8.5 <br />MSD 1717229-01 <br />ND <br />28.130 <br />25.000 <br />ug/L 7.4 <br />113 <br />20 70-130 <br />Chlorobenzene MS 1717229-01 ND 27.660 25.000 ug/L 111 70-130 <br />MSD 1717229-01 ND 26.060 25.000 ug/L 6.0 104 20 70-130 <br />Chloroethane <br />MS <br />1717229-01 <br />ND <br />29.190 <br />25.000 <br />ug/L <br />80-120 <br />117 <br />1717229-01 <br />70-130 <br />9.9300 <br />MSD <br />1717229-01 <br />ND <br />28.000 <br />25.000 <br />ug/L <br />4.2 <br />112 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1717229-01 <br />ND <br />27.170 <br />25.000 <br />ug/L <br />ug/L 5.3 <br />109 <br />80-120 <br />70-130 <br />MSD <br />1717229-01 <br />ND <br />24.950 <br />25.000 <br />ug/L <br />8.5 <br />99.8 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1717229-01 <br />ND <br />30.030 <br />25.000 <br />ug/L <br />120 <br />70-130 <br />MSD <br />1717229-01 <br />ND <br />29.400 <br />25.000 <br />ug/L <br />2.1 <br />118 <br />20 <br />70-130 <br />1 <br />n,1-Dichloroethene <br />MS <br />1717229-01 <br />ND <br />31.780 <br />25.000 <br />ug/L <br />127 <br />70-130 <br />MSD <br />1717229-01 <br />ND <br />29.760 <br />25.000 <br />ug/L <br />6.6 <br />119 <br />20 <br />70-130 <br />Toluene <br />MS <br />1717229-01 <br />ND <br />28.680 <br />25.000 <br />ug/L <br />115 <br />70-130 <br />MSD <br />1717229-01 <br />ND <br />27.460 <br />25.000 <br />ug/L <br />4.3 <br />110 <br />20 <br />70 - 130 <br />Trichloroethene <br />MS <br />1717229-01 <br />ND <br />27.130 <br />25.000 <br />ug/L <br />109 <br />70-130 <br />MSD <br />1717229-01 <br />ND <br />26.560 <br />25.000 <br />ug/L <br />2.1 <br />106 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) MS 1717229-01 ND 10.450 10.000 ug/L 104 75-125 <br />MSD 1717229-01 ND 9.6800 10.000 ug/L 7.7 96.8 75-125 <br />Toluene -d8 (Surrogate) MS <br />1717229-01 <br />ND <br />10.170 <br />10.000 <br />ug/L <br />102 <br />80-120 <br />MSD <br />1717229-01 <br />ND <br />9.9300 <br />10.000 <br />ug/L 2.4 <br />99.3 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) MS <br />1717229-01 <br />ND <br />10.520 <br />10.000 <br />ug/L <br />105 <br />80-120 <br />MSD <br />1717229-01 <br />ND <br />9.9800 <br />10.000 <br />ug/L 5.3 <br />99.8 <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 />Atlaresults 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: 1000620813 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 11 of 12 <br />