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Laboratories Inc. � �_ <br /> Environmental Testing Laboratory Since 1949 <br /> Ground Zero Analysis, Inc. Reported: 04/02/2019 15:06 <br /> 1172 Kansas Avenue Project: Woolsey-Lodi <br /> Modesto,CA 95351 Project Number: 156 <br /> Project Manager: Project Manager <br /> Volatile Organic Analysis (EPA Method 82606) <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: B041595 <br /> Benzene B041595-BS1 LCS 27.739 25.000 ug/L 111 70-130 <br /> Toluene B041595-BS1 LCS 26.712 25.000 ug/L 107 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) B041595-BS1 LCS 10.750 10.000 ug/L 108 75-125 <br /> Toluene-d8(Surrogate) 8041595-BS1 LCS 10.300 10.000 ug/L 103 80-120 <br /> 4-Bromofluorobenzene(Surrogate) 8041595-BS1 LCS 10.190 10.000 ug/L 102 80-120 <br /> The results in this report apply to the samples analyzed in accordance with 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: 1000869861 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 18 of 23 <br />