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Laboratories, Inc. I U1. <br />�® Environmental Testing Laboratory Since 1949 <br />Geologic Associates Reported: 06/28/2017 12:40 <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 - 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 />QC Batch ID: B[F2259 Used client sample: N <br />Benzene MS 1717089-02 ND 26.200 25.000 ug/L 105 70-130 <br />MSD 1717089-02 ND 25.780 25.000 ug/L 1.6 103 20 70-130 <br />Bromodichloromethane MS 1717089-02 ND 27.770 25.000 ug/L ill, 70-130 <br />MSD 1717089-02 ND 27.130 25.000 ug/L 2.3 109 20 70-130 <br />Chlorobenzene <br />MS <br />1717089-02 <br />ND <br />25.210 <br />25.000 <br />ug/L <br />80-120 <br />101 <br />1717089-02 <br />70-130 <br />10.030 <br />MSD <br />1717089-02 <br />ND <br />23.570 <br />25.000 <br />ug/L <br />6.7 <br />94.3 <br />20 <br />70-130 <br />Chloroethane <br />MS <br />1717089-02 <br />ND <br />25.850 <br />25.000 <br />ug/L <br />ug/L 2.4 <br />103 <br />80-120 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />25.500 <br />25.000 <br />ug/L <br />1.4 <br />102 <br />20 <br />70-130 <br />1,4 -Dichlorobenzene <br />MS <br />1717089-02 <br />ND <br />24.210 <br />25.000 <br />ug/L <br />96.8 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />23.830 <br />25.000 <br />ug/L <br />1.6 <br />95.3 <br />20 <br />70-130 <br />1,1-Dichloroethane <br />MS <br />1717089-02 <br />ND <br />26.830 <br />25.000 <br />ug/L <br />107 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />25.250 <br />25.000 <br />ug/L <br />6.1 <br />101 <br />20 <br />70-130 <br />1,1-Dichloroethene <br />MS <br />1717089-02 <br />ND <br />28.250 <br />25.000 <br />ug/L <br />113 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />26.850 <br />25.000 <br />ug/L <br />5.1 <br />107 <br />20 <br />70-130 <br />Toluene <br />MS <br />1717089-02 <br />ND <br />25.720 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />25.480 <br />25.000 <br />ug/L <br />0.9 <br />102 <br />20 <br />70-130 <br />Trichloroethene <br />MS <br />1717089-02 <br />ND <br />25.410 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />MSD <br />1717089-02 <br />ND <br />25.270 <br />25.000 <br />ug/L <br />0.6 <br />101 <br />20 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) MS 1717089-02 ND 10.880 10.000 ug/L 109 75-125 <br />MSD 1717089-02 ND 9.6500 10.000 ug/L 12.0 96.5 75-125 <br />Toluene -d8 (Surrogate) MS <br />1717089-02 <br />ND <br />10.260 <br />10.000 <br />ug/L <br />103 <br />80-120 <br />MSD <br />1717089-02 <br />ND <br />10.030 <br />10.000 <br />ug/L 2.3 <br />100 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) MS <br />1717089-02 <br />ND <br />10.280 <br />10.000 <br />ug/L <br />103 <br />80-120 <br />MSD <br />1717089-02 <br />ND <br />10.040 <br />10.000 <br />ug/L 2.4 <br />100 <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: 1000620629 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.bclabs.com Page 11 of 12 <br />