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- Laboratories Inc. 1, <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 826013 ) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br /> QC Batch ID : B068809 <br /> Benzene B068809- BSI LCS 0. 12015 0. 12500 mg/kg 96. 1 70 - 130 <br /> Bromodichloromethane B068809-BS1 LCS 0. 12811 0 . 12500 mg/kg 102 70 - 130 <br /> Chlorobenzene B068809-BS1 LCS 0 . 12734 0. 12500 mg/kg 102 70 - 130 <br /> - <br /> Chloroethane B068809-BS1 LCS 0 . 13880 0. 12500 mg/kg 111 70 - 130 <br /> 1 ,4-Dichlorobenzene B068809-BSI LCS 0. 13231 0. 12500 mg/kg 106 70 - 130 <br /> 1 , 1 -Dichloroethane 13068809-13SI LCS 0. 11421 0 . 12500 mg/kg 91 .4 70 - 130 <br /> 1 , 1 -Dichloroethene B068809-BSI LCS 0 . 11311 0 . 12500 mg/kg 90. 5 70 - 130 <br /> Toluene B068809-BS1 LCS 0 . 12488 0 . 12500 mg/kg 99. 9 70 - 130 <br /> Trichloroethene B068809-BS1 LCS 0 . 11937 0. 12500 mg/kg 95 . 5 70 - 130 <br /> I , 2-Dichloroethane-d4 (Surrogate) 6068809-BS1 LCS 0 . 048370 0.050000 mg/kg 96.7 70 - 121 <br /> Toluene-d8 (Surrogate) B068809-BS1 LCS 0.049810 0 .050000 mg/kg 99. 6 81 - 117 <br /> 4-Bromofluorobenzene (Surrogate) B068809-BSI LCS 0.051660 0 . 050000 mg/kg 103 74 - 121 <br /> QC Batch ID : B068853 <br /> Benzene B068853-BS1 LCS 22. 840 25 . 000 ug/L 91 .4 70 - 130 <br /> Bromodichloromethane B068853-BS1 LCS 25.930 25. 000 ug/L 104 70 - 130 <br /> Chlorobenzene B068853-BSI LCS 25. 900 25. 000 ug/L 104 70 - 130 <br /> Chloroethane B068853-BSI LCS 23 . 300 25. 000 ug/L 93. 2 70 - 130 <br /> 1 ,4-Dichlorobenzene B068853-BSI LCS 27 . 910 25 . 000 ug/L 112 70 - 130 <br /> 1 , 1 -Dichloroethane B068853-BS1 LCS 21 . 970 25 . 000 ug/L 87. 9 70 - 130 <br /> I , 1 -Dichloroethene B068853-BS1 LCS 24. 120 25 . 000 ug/L 96. 5 70 - 130 <br /> Toluene B068853-8;S1 LCS 25. 370 25 . 000 ug/L 101 70 - 130 <br /> Trichloroethene B068853-BS1 LCS 25 . 310 25.000 ug/L 101 70 - 130 <br /> 1 ,2-DichloroethaneA4 (Surrogate) B068853-BSI LCS 10. 000 10.000 ug/L 100 75 - 125 <br /> Toluene-d8 (Surrogate) B068853-BSI LCS 10. 360 10. 000 ug/L 104 80 - 120 <br /> 4-Bromofluorobenzene (Surrogate) B068853-BS1 LCS 9.7500 10 . 000 ug/L 97. 5 80 - 120 <br /> - <br /> The wsults in this mport apply to the samples analyzed in accordance with the chain of custody document , This analytical mport nntst he reproduced in as enttmty. <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. bclabs.com Page 29 of 35 <br />