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Laboratories Inc. � �_ <br /> Environmental Testing Laboratory Since 1949 <br /> Mark R. Magargee PG,CHg Reported: 03/23/2020 21:34 <br /> 6730 Canaletto Avenue Project: Soil <br /> Bakersfield,CA 93306 Project Number: [none] <br /> Project Manager: Mark Magargee <br /> Volatile Organic Analysis (EPA Method 82606) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID: B073447 <br /> Benzene B073447-BS1 LCS 0.13547 0.12500 mg/kg 108 70-130 <br /> Toluene B073447-BS1 LCS 0.12773 0.12500 mg/kg 102 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) B073447-BS1 LCS 0.051040 0.050000 mg/kg 102 70-121 <br /> Toluene-d8(Surrogate) B073447-BS1 LCS 0.049660 0.050000 mg/kg 99.3 81 -117 <br /> 4-Bromofluorobenzene(Surrogate) B073447-BS1 LCS 0.046820 0.050000 mg/kg 93.6 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: 1001011803 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 9 of 11 <br />