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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis , Inc. Reported : 08/21 /2019 17: 38 <br /> 1172 Kansas Avenue Project : Soil Samples <br /> Modesto , CA 95351 Project Number: 1174 - Associated Tractor <br /> Project Manager: Project Manager <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 : B053965 <br /> Benzene B053965-BLK1 ND mg/kg 0.0050 0 . 0018 <br /> Bromobenzene B053965-BLK1 ND mg/kg 0 . 0050 0. 0019 <br /> Bromochloromethane B053965-BLK1 ND mg/kg 0. 0050 0. 0014 <br /> Bromodichloromethane B053965-BLK1 ND mg/kg 0.0050 0. 0020 <br /> Bromoform B053965-BLK1 ND mg/kg 0.0050 0 . 0023 <br /> Bromomethane B053965-13LK1 ND mg/kg 0 . 0050 0. 0024 <br /> n-Butylbenzene B053965-BLK1 ND mglkg 0 . 0050 0.0021 <br /> sec-Butylbenzene B053965-BLK1 ND mg/kg 0.0050 0. 0021 <br /> tert-Butylbenzene B053965-BLK1 ND mg/kg 0.0050 0 . 0024 <br /> Carbon tetrachloride B053965-BLK1 ND mg/kg 0.0050 0. 0019 <br /> Chlorobenzene B053965-13LK1 ND mg/kg 0 .0050 0.0020 <br /> Chloroethane B053965-BLK1 ND mg/kg 0 . 0050 0. 0019 <br /> Chloroform B053965-BLK1 ND mg/kg 0. 0050 0. 0017 <br /> Chloromethane 8053965-BLK1 ND mg/kg 0. 0050 0. 0017 <br /> 2-Chlorotoluene B053965-BLK1 ND mg/kg 0.0050 0. 0018 <br /> 4-Chlorotoluene B053965-BLK1 ND mg/kg 0.0050 0.0021 <br /> Dibromochloromethane B053965-13LK1 ND mg/kg 0 . 0050 0.0020 <br /> 1 , 2-Dibromo-3-chloropropane 8053965-BLK1 ND mg/kg 0. 0050 0. 0023 <br /> 1 , 2-Dibromoethane 8053965-BLK1 ND mg/kg 0. 0050 0. 0019 <br /> Dibromomethane B053965-BLK1 ND mg/kg 0.0050 0 . 0016 <br /> 1 ,2-Dichlorobenzene B053965-13LK1 ND mg/kg 0.0050 0. 0023 <br /> 1 , 3-Dichlorobenzene B053965-BLK1 ND mg/kg 0 . 0050 0.0020 <br /> 1 ,4-Dichlorobenzene B053965-BLK1 ND mg/kg 0 . 0050 0.0023 <br /> Dichlorodifluoromethane B053965-BLK1 ND mg/kg 0. 0050 0. 0020 <br /> 111 -Dichloroethane B053965-BLK1 ND mg/kg 0.0050 0 . 0019 <br /> 1 ,2-Dichloroethane B053965-BLK1 ND mg/kg 0.0050 0 . 0017 <br /> 1 , 1 -Dichloroethene B053965-BLK1 ND mg/kg 0.0050 0.0021 <br /> cis-1 ,2-Dichloroethene B053965-BLK1 ND mg/kg 0. 0050 0. 0018 <br /> trans-1 , 2-Dichloroethene B053965-BLK1 ND mg/kg 0. 0050 0.0019 <br /> Total 1 ,2-Dichloroethene B053965-13LK1 ND mg/kg 0 . 010 0. 0026 <br /> 1 ,2-Dichloropropane B053965-BLK1 ND mg/kg 0.0050 0 . 0019 <br /> 1 ,3-Dichloropropane B053965-BLK1 ND mg/kg 0.0050 0 . 0022 <br /> 2 ,2-Dichloropropane B053965-BLK1 ND mg/kg 0.0050 0 .0020 <br /> 1 , 1 -Dichloropropene 8053965-BLK1 ND mglkg 0 .0050 0.0019 <br /> The results in this report apply to the samples analyzed in accordance erith 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: 1000928515 4100 Atlas Court Bakersfield , CA 93308 (661 ) 327-4911 FAX (661 ) 327-1918 www, bclabs.com Page 15 of 23 <br />