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ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: <br />03/01/2023 8:37 <br />735 Tank Farm Rd, Suite 150 Project: <br />Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: <br />30110749.01 <br />Project Manager: <br />Drew Feucht <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 R# <br />QC Batch ID: B159117 <br />Used client sample: N <br />Benzene <br />MS <br />2301934-08 <br />ND <br />22.940 <br />25.000 <br />ug/L <br />91.8 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />22.840 <br />25.000 <br />ug/L <br />0.4 <br />91.4 <br />20 <br />70-130 <br />2 <br />Bromodichloromethane <br />MS <br />2301934-08 <br />ND <br />24.660 <br />25.000 <br />ug/L <br />98.6 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />24.500 <br />25.000 <br />ug/L <br />0.7 <br />98.0 <br />20 <br />70-130 <br />2 <br />Chlorobenzene <br />MS <br />2301934-08 <br />ND <br />23.770 <br />25.000 <br />ug/L <br />95.1 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />23.640 <br />25.000 <br />ug/L <br />0.5 <br />94.6 <br />20 <br />70-130 <br />2 <br />Chloroethane <br />MS <br />2301934-08 <br />ND <br />23.730 <br />25.000 <br />ug/L <br />94.9 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />24.140 <br />25.000 <br />ug/L <br />1.7 <br />96.6 <br />20 <br />70-130 <br />2 <br />1,4 -Dichlorobenzene <br />MS <br />2301934-08 <br />ND <br />24.890 <br />25.000 <br />ug/L <br />99.6 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />24.580 <br />25.000 <br />ug/L <br />1.3 <br />98.3 <br />20 <br />70-130 <br />2 <br />1,1-Dichloroethane <br />MS <br />2301934-08 <br />ND <br />23.160 <br />25.000 <br />ug/L <br />92.6 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />22.770 <br />25.000 <br />ug/L <br />1.7 <br />91.1 <br />20 <br />70-130 <br />2 <br />1,1-Dichloroethene <br />MS <br />2301934-08 <br />ND <br />25.070 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />24.260 <br />25.000 <br />ug/L <br />3.3 <br />97.0 <br />20 <br />70-130 <br />2 <br />Toluene <br />MS <br />2301934-08 <br />ND <br />23.190 <br />25.000 <br />ug/L <br />92.8 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />ND <br />23.240 <br />25.000 <br />ug/L <br />0.2 <br />93.0 <br />20 <br />70-130 <br />2 <br />Trichloroethene <br />MS <br />2301934-08 <br />0.82000 <br />24.220 <br />25.000 <br />ug/L <br />93.6 <br />70-130 <br />1 <br />MSD <br />2301934-08 <br />0.82000 <br />24.030 <br />25.000 <br />ug/L <br />0.8 <br />92.8 <br />20 <br />70-130 <br />2 <br />1,2-Dichloroethane-d4 (Surrogate) <br />MS <br />2301934-08 <br />ND <br />9.7900 <br />10.000 <br />ug/L <br />97.9 <br />75-125 <br />1 <br />MSD <br />2301934-08 <br />ND <br />9.9000 <br />10.000 <br />ug/L <br />1.1 <br />99.0 <br />75-125 <br />2 <br />Toluene -d8 (Surrogate) <br />MS <br />2301934-08 <br />ND <br />9.9800 <br />10.000 <br />ug/L <br />99.8 <br />80-120 <br />1 <br />MSD <br />2301934-08 <br />ND <br />10.010 <br />10.000 <br />ug/L <br />0.3 <br />100 <br />80-120 <br />2 <br />4-Bromofluorobenzene (Surrogate) <br />MS <br />2301934-08 <br />ND <br />10.200 <br />10.000 <br />ug/L <br />102 <br />80-120 <br />1 <br />MSD <br />2301934-08 <br />ND <br />10.180 <br />10.000 <br />ug/L <br />0.2 <br />102 <br />80-120 <br />2 <br />Run <br />Run # QC Sample ID <br />QC Type <br />Method <br />Prep Date <br />Date Time <br />Analyst <br />Instrument <br />Dilution <br />1 B159117-MS1 <br />MS <br />EPA -8260B <br />02/02/23 <br />02/03/23 03:33 <br />MGC <br />MS -V5 <br />1 <br />2 B159117-MSD1 <br />MSD <br />EPA -8260B <br />02/02/23 <br />02/03/23 03:57 <br />MGC <br />MS -V5 <br />1 <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 <br />use of the submitting <br />party. <br />Pace Analytical assumes no responsibility for <br />report alteration, separation, detachment <br />or third party interpretation. <br />Report ID: 1001402089 <br />4100 Atlas <br />Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com <br />Page 60 of 68 <br />