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Laboratories Inc. W11 <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 /> BCL Sample ID : 1904878-01 Client Sample Name : Vent Box-3 , 2/13/2019 10: 00 : OOAM <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals Run # <br /> Benzene ND mg/kg 0. 0050 0. 0013 EPA-8260B ND 1 <br /> 1 ,2-Dibromoethane ND mg/kg 0.0050 0. 0010 EPA-8260B ND 1 <br /> 1 ,2-Dichloroethane ND mg/kg 0. 0050 0. 00085 EPA-82608 ND <br /> Ethylbenzene ND mg/kg 0.0050 0. 0015 EPA-82608 ND 1 <br /> Methyl t-butyl ether ND mg/kg 0. 0050 0.00050 EPA-82608 ND <br /> Naphthalene ND mg/kg 0. 0050 0. 0014 EPA-8260B ND 1 <br /> Toluene ND mg/kg 0.0050 0. 0012 EPA-82608 ND 1 <br /> Total Xylenes ND mg/kg 0. 010 0. 0034 EPA-8260B ND 1 <br /> t-Amyl Methyl ether ND mg/kg 0.0050 0.00056 EPA-8260B ND <br /> t-Butyl alcohol ND mg/kg 0. 050 0. 017 EPA-8260B ND <br /> Diisopropyl ether ND mg/kg 0.0050 0. 00080 EPA-8260B ND 1 <br /> Ethanal ND mg/kg 1 . 0 0.066 EPA-82608 ND 1 <br /> Ethyl t-butyl ether ND mg/kg 0.0050 0. 00022 EPA-8260B ND 1 <br /> Total Purgeabie Petroleum ND mg/kg 0. 20 0.020 Luft-GC/MS ND <br /> Hydrocarbons <br /> 1 , 2-DichloroethaneA4 (Surrogate) 116 % 70 - 121 (LCL - UCL) EPA-8260B 1 <br /> Toluene-d8 (Surrogate) 97. 1 % 81 - 117 (LCL - UCL) EPA-8260B 1 <br /> 4-Bromofluorobenzene (Surrogate) 94.0 % 74 - 121 (LCL - UCL) EPA-82608 1 <br /> Run QC <br /> Run # Method Prep Date Daterrime Analyst Instrument Dilution Batch ID <br /> 1 EPA-8260B 02/15/19 07:46 02/15/19 15: 28 ADC MS42 1 B037856 <br /> The resmhs in this m1mri a/tply to the samples awtvzed iu accotrlmtce with the chain of c•ustndy document . Thin analytical report must be iepmduced 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 8 of 40 <br />