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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Admilk <br /> Arcadis-SLO Reported: 05/15/2019 12:49 <br /> 735 Tank Farm Rd,Suite 150 Project: Forward Landfill <br /> San Luis Obispo,CA 93401 Project Number: SM010309.0000 <br /> Project Manager: Heather Tegley <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 /> QC Batch ID: B045821 J Used client sample: N <br /> Benzene MS 1914483-01 0.34000 27.720 25.000 ug/L 110 70-130 <br /> MSD 1914483-01 0.34000 27.110 25.000 ug/L 2.2 107 20 70-130 <br /> Bromodichloromethane MS 1914483-01 ND 26.390 25.000 ug/L 106 70-130 <br /> MSD 1914483-01 ND 27.460 25.000 ug/L 4.0 110 20 70-130 <br /> Chlorobenzene MS 1914483-01 1.4000 32.650 25.000 ug/L 125 70-130 <br /> MSD 1914483-01 1.4000 33.600 25.000 ug/L 2.9 129 20 70-130 <br /> Chloroethane MS 1914483-01 ND 28.100 25.000 ug/L 112 70-130 <br /> MSD 1914483-01 ND 26.730 25.000 ug/L 5.0 107 20 70-130 <br /> 1,4-Dichlorobenzene MS 1914483-01 0.18000 24.040 25.000 ug/L 95.4 70-130 <br /> MSD 1914483-01 0.18000 25.110 25.000 ug/L 4.4 99.7 20 70-130 <br /> 1,1-Dichloroethane MS 1914483-01 ND 28.630 25.000 ug/L 115 70-130 <br /> MSD 1914483-01 ND 28.030 25.000 ug/L 2.1 112 20 70-130 <br /> 1-Dichloroethene MS 1914483-01 3.0000 32.300 25.000 ug/L 117 70-130 <br /> MSD 1914483-01 3.0000 31.880 25.000 ug/L 1.3 116 20 70-130 <br /> Toluene MS 1914483-01 ND 30.730 25.000 ug/L 123 70-130 <br /> MSD 1914483-01 ND 30.700 25.000 ug/L 0.1 123 20 70-130 <br /> Trichloroethene MS 1914483-01 15.240 39.780 25.000 ug/L 98.2 70-130 <br /> MSD 1914483-01 15.240 42.420 25.000 ug/L 6.4 109 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1914483-01 ND 11.540 10.000 ug/L 115 75-125 <br /> MSD 1914483-01 ND 10.810 10.000 ug/L 6.5 108 75-125 <br /> Toluene-d8(Surrogate) MS 1914483-01 ND 9.8900 10.000 ug/L 98.9 80-120 <br /> MSD 1914483-01 ND 9.9300 10.000 ug/L 0.4 99.3 80-120 <br /> 4-Bromofluorobenzene(Surrogate) MS 1914483-01 ND 9.8200 10.000 ug/L 98.2 80-120 <br /> MSD 1914483-01 ND 10.230 10.000 ug/L 4.1 102 80-120 <br /> QC Batch ID: B045955 Used client sample: N <br /> Benzene MS 1912665-62 ND 27.540 25.000 ug/L 110 70-130 <br /> MSD 1912665-62 ND 25.320 25.000 ug/L 8.4 101 20 70-130 <br /> Bromodichloromethane MS 1912665-62 ND 26.550 25.000 ug/L 106 70-130 <br /> MSD 1912665-62 ND 25.360 25.000 ug/L 4.6 101 20 70-130 <br /> Chlorobenzene MS 1912665-62 ND 28.150 25.000 ug/L 113 70-130 <br /> MSD 1912665-62 ND 27.350 25.000 ug/L 2.9 109 20 70-130 <br /> Chloroethane MS 1912665-62 ND 26.890 25.000 ug/L 108 70-130 <br /> MSD 1912665-62 ND 24.820 25.000 ug/L 8.0 99.3 20 70-130 <br /> 1,4-Dichlorobenzene MS 1912665-62 ND 22.000 25.000 ug/L 88.0 70-130 <br /> MSD 1912665-62 ND 21.440 25.000 ug/L 2.6 85.8 20 70-130 <br /> ®1,1-Dichloroethane MS 1912665-62 ND 29.000 25.000 ug/L 116 70-130 <br /> MSD 1912665-62 ND 26.110 25.000 ug/L 10.5 104 20 70-130 <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: 1000887896 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 36 of 38 <br />