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:w 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 826013 ) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID : 8037856 <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 8037856-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 B037856-BLK1 ND mg/kg 0.0050 0.0012 <br /> Total Xylenes B037856-BLK1 ND mg/kg 0. 010 O.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 re.vults in this report apply to the samples anah .ed in eterordance frith the chain (if custody document . Th iv analytical report must be tr produced in its entitwy. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assures 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. belabs.com Page 34 of 40 <br />