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ce Analytical <br /> EN YIRCNMENTA!SCIENCES <br /> Ground Zero Analysis, Inc.-Modesto Reported: 07/23/2024 11:27 <br /> 1172 Kansas Avenue Project: Stallworth Auto-EDF <br /> Modesto,CA 95351 Project Number: 602N.California St.Stockton,CA <br /> Project Manager: Greg Stahl <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 Run# <br /> QC Batch ID: B192596 <br /> Benzene B192596-BSI LCS 0.14296 0.12500 mg/kg 114 70-130 1 <br /> Toluene B192596-BS1 LCS 0.13036 0.12500 mg/kg 104 70-130 1 <br /> 1,2-Dichloroethane-d4(Surrogate) B192596-BS1 LCS 0.050010 0.050000 mg/kg 100 70-121 1 <br /> Toluene-d8(Surrogate) B192596-BS1 LCS 0.051260 0.050000 mg/kg 103 81-117 1 <br /> 4-Bromofluorobenzene(Surrogate) B192596-BS1 LCS 0.052560 0.050000 mg/kg 105 74-121 1 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B192596-BS1 LCS EPA-8260B 07/10/24 07/11/24 01:06 EAB MS-V18 1 <br /> 1 B192596-BS1 LCS EPA-8260B 07/10/24 07/11/24 01:06 EAB MS-V18 1 <br /> 1 B192596-BS1 LCS EPA-8260B 07/10/24 07/11/24 01:06 EAB MS-V18 1 <br /> 1 B192596-BS1 LCS EPA-8260B 07/10/24 07/11/24 01:06 EAB MS-V18 1 <br /> 1 B192596-BS1 LCS EPA-8260B 07/10/24 07/11/24 01:06 EAB MS-V18 1 <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. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1001524132 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 27 of 35 <br />