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Laboratories Inc. , <br /> Environmental Testing Laboratory Since 1949 <br /> Mark R. Magargee PG,CHg Reported: 02/27/2019 17:09 <br /> 6730 Canaletto Avenue Project: Soil <br /> Bakersfield,CA 93306 Project Number: Sohal#3 <br /> Project Manager: Mark Magargee <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: B038372 Used client sample: N <br /> Benzene MS 1902131-94 ND 0.14034 0.12500 mg/kg 112 70-130 <br /> MSD 1902131-94 ND 0.14495 0.12500 mg/kg 3.2 116 20 70-130 <br /> Toluene MS 1902131-94 ND 0.13274 0.12500 mg/kg 106 70-130 <br /> MSD 1902131-94 ND 0.13366 0.12500 mg/kg 0.7 107 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1902131-94 ND 0.047650 0.050000 mg/kg 95.3 70-121 <br /> MSD 1902131-94 ND 0.047670 0.050000 mg/kg 0.0 95.3 70-121 <br /> Toluene-d8(Surrogate) MS 1902131-94 ND 0.048950 0.050000 mg/kg 97.9 81-117 <br /> MSD 1902131-94 ND 0.048210 0.050000 mg/kg 1.5 96.4 81-117 <br /> 4-Bromofluorobenzene(Surrogate) MS 1902131-94 ND 0.049180 0.050000 mg/kg 98.4 74-121 <br /> MSD 1902131-94 ND 0.048120 0.050000 mg/kg 2.2 96.2 74-121 <br /> QC Batch ID: B038645 Used client sample: N <br /> Benzene MS 1902131-96 ND 0.16157 0.12500 mg/kg 129 70-130 <br /> MSD 1902131-96 ND 0.16054 0.12500 mg/kg 0.6 128 20 70-130 <br /> Toluene MS 1902131-96 ND 0.14162 0.12500 mg/kg 113 70-130 <br /> MSD 1902131-96 ND 0.14108 0.12500 mg/kg 0.4 113 20 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 1902131-96 ND 0.049020 0.050000 mg/kg 98.0 70-121 <br /> MSD 1902131-96 ND 0.048000 0.050000 mg/kg 2.1 96.0 70-121 <br /> Toluene-d8(Surrogate) MS 1902131-96 ND 0.048700 0.050000 mg/kg 97.4 81-117 <br /> MSD 1902131-96 ND 0.049560 0.050000 mg/kg 1.8 99.1 81-117 <br /> 4-Bromofluorobenzene(Surrogate) MS 1902131-96 ND 0.048990 0.050000 mg/kg 98.0 74-121 <br /> MSD 1902131-96 ND 0.047970 0.050000 mg/kg 2.1 95.9 74-121 <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: 1000856214 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 26 of 30 <br />