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Laboratories Inc. , <br /> Environmental Testing Laboratory Since 1949 <br /> Mark R. Magargee PG,CHg Reported: 02/25/2019 11:45 <br /> 6730 Canaletto Avenue Project: General <br /> Bakersfield,CA 93306 Project Number: Sohal#3 <br /> Project Manager: Mark Magargee <br /> Volatile Organic Analysis (EPA Method 82606) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: B037856 <br /> Benzene B037856-BLK1 ND mg/kg 0.0050 0.0013 <br /> 1,2-Dibromoethane B037856-BLK1 ND mg/kg 0.0050 0.0010 <br /> 1,2-Dichloroethane B037856-BLK1 ND mg/kg 0.0050 0.00085 <br /> Ethylbenzene B037856-BLK1 ND mg/kg 0.0050 0.0015 <br /> Methyl t-butyl ether B037856-BLK1 ND mg/kg 0.0050 0.00050 <br /> Naphthalene B037856-BLK1 ND mg/kg 0.0050 0.0014 <br /> Toluene 8037856-BLK1 ND mg/kg 0.0050 0.0012 <br /> Total Xylenes B037856-BLK1 ND mg/kg 0.010 0.0034 <br /> t-Amyl Methyl ether B037856-BLK1 ND mg/kg 0.0050 0.00056 <br /> t-Butyl alcohol B037856-BLK1 ND mg/kg 0.050 0.017 <br /> Diisopropyl ether B037856-BLK1 ND mg/kg 0.0050 0.00080 <br /> Ethanol B037856-BLK1 ND mg/kg 1.0 0.066 <br /> Ethyl t-butyl ether B037856-BLK1 ND mg/kg 0.0050 0.00022 <br /> Total Purgeable Petroleum Hydrocarbons B037856-BLK1 ND mg/kg 0.20 0.020 <br /> 1,2-Dichloroethane-d4(Surrogate) B037856-BLK1 112 % 70-121 (LCL-UCL) <br /> Toluene-d8(Surrogate) B037856-BLK1 97.3 % 81-117 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) B037856-BLK1 89.7 % 74-121 (LCL-UCL) <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: 1000854621 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 34 of 40 <br />