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M <br /> Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis , Inc. Reported : 01 /27/2020 7 :46 <br /> 1172 Kansas Avenue Project: Bentz - Associated Tractor <br /> Modesto , CA 95351 Project Number: 1174 <br /> Project Manager: Project Manager <br /> Volatile Organic Analysis ( EPA Method 82606 ) <br /> BCL Sample ID: 2002021 -05 Client Sample Name : SB20-02-GW, 1 /16/2020 10 : 55 : OOAM , AD , GZA <br /> MB Lab <br /> Constituent Result Units PQL MDL Method Bias Quals Run # <br /> Ethyl t-butyl ether ND ug/L 0. 50 0 . 18 EPA-8260B ND 1 <br /> p- & m-Xylenes ND ug/L 0.50 0.28 EPA-8260B ND 1 <br /> o-Xylene ND ug/L 0.50 0 . 082 EPA-82606 ND 1 <br /> Total Purgeable Petroleum ND ug/L 50 7.2 Luft-GC/MS ND 1 <br /> Hydrocarbons <br /> 1 , 2-Dichloroethane-d4 (Surrogate) 120 % 75 - 125 (LCL - UCL) EPA-8260B 1 <br /> Toluene-d8 (Surrogate) 105 % 80 - 120 (LCL - UCL) EPA-8260B 1 <br /> 4-Bromofluorobenzene (Surrogate) 107 % 80 - 120 (LCL - UCL) EPA-8260B 1 <br /> Run QC <br /> Run # Method Prep Date Date/Time Analyst Instrument Dilution Batch ID <br /> 1 EPA-8260B 01 /23/20 10 : 00 01 /24/20 08 : 02 TDH MS-V13 1 B068853 <br /> The results in This report apply to the samples analyzed in accordance with the chain ojcustody document. This analytical report itiv be reproduced in its entnvx i;. <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 : 1000990981 4100 Atlas Court Bakersfield, CA 93308 (661 ) 327-4911 FAX (661 ) 327-1918 www, belabs.com Page 23 of 35 <br />