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.. Laboratories Inc. � I . <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 /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quaffs <br /> QC Batch ID : B037856 Used client sample : N <br /> Benzene MS 1902131 -52 ND 0. 12440 0. 12500 mg/kg 99. 5 70 - 130 <br /> MSD 1902131 -52 ND 0. 11389 0. 12500 mg/kg 8. 8 91 . 1 20 70 - 130 <br /> Toluene MS 1902131 -52 ND 0. 11853 0. 12500 mg/kg 94 . 8 70 - 130 <br /> MSD 1902131 -52 ND 0. 12017 0 . 12500 mg/kg 1 .4 96. 1 20 70 - 130 <br /> 1 , 2-Dichloroethane-d4 (Surrogate) MS 1902131 -52 ND 0. 055520 0.050000 mg/kg 111 70 - 121 <br /> MSD 1902131 -52 ND 0. 055670 0.050000 mg/kg 0. 3 111 70 - 121 <br /> Toluene-d8 (Surrogate) MS 1902131 -52 ND 0. 046750 0.050000 mg/kg 93. 5 81 - 117 <br /> MSD 1902131 -52 ND 0.051390 0.050000 mg/kg 9. 5 103 81 - 117 <br /> 4-Bromofluorobenzene (Surrogate) MS 1902131 -52 ND 0. 051480 0.050000 mg/kg 103 74 - 121 <br /> MSD 1902131 -52 ND 0. 052570 0.050000 mg/kg 2. 1 105 74 - 121 <br /> The rectdis in this reporl apply to die sampler analysed in accnrelance trith 1he char)) ofcusmdy document . "Phis analytical report marl be reproduced in itr 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 36 of 40 <br />