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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 826013) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals <br /> QC Batch ID: B073447 <br /> Benzene 8073447-BLK1 ND mg/kg 0.0050 0.0018 <br /> 1,2-Dibromoethane 8073447-BLK1 ND mg/kg 0.0050 0.0019 <br /> 1,2-Dichloroethane 8073447-BLK1 ND mg/kg 0.0050 0.0017 <br /> Ethylbenzene 8073447-BLK1 ND mg/kg 0.0050 0.0022 <br /> Methyl t-butyl ether B073447-BLK1 ND mg/kg 0.0050 0.0017 <br /> Naphthalene 8073447-BLK1 ND mg/kg 0.0050 0.0023 <br /> Toluene B073447-BLK1 ND mg/kg 0.0050 0.0020 <br /> Total Xylenes B073447-BLK1 ND mg/kg 0.010 0.0034 <br /> t-Amyl Methyl ether B073447-BLK1 ND mg/kg 0.0050 0.00017 <br /> t-Butyl alcohol B073447-BLK1 ND mg/kg 0.050 0.0040 <br /> Diisopropyl ether B073447-BLK1 ND mg/kg 0.0050 0.00043 <br /> Ethanol 8073447-BLK1 ND mg/kg 1.0 0.13 <br /> Ethyl t-butyl ether 8073447-BLK1 ND mg/kg 0.0050 0.00014 <br /> Total Purgeable Petroleum Hydrocarbons 8073447-BLK1 ND mg/kg 0.20 0.13 <br /> 1,2-Dichloroethane-d4(Surrogate) B073447-BLK1 99.7 % 70-121 (LCL-UCL) <br /> Toluene-d8(Surrogate) B073447-BLKI 98.5 % 81-117 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) B073447-BLK1 91.9 % 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 /> ReportID: 1001011803 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 8 of 11 <br />