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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/10/2026 15:35 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 <br /> Project Manager: Dalia Rumani <br /> DHS Low Level 1,2,3-TCP by SRL 524M <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: B226962 <br /> 1,2,3-Trichloropropane B226962-BS1 LCS 0.057770 0.050000 ug/L 116 80-120 1 <br /> QC Batch ID: B227014 <br /> 1,2,3-Trichloropropane B227014-BS1 LCS 0.057260 0.050000 ug/L 115 80-120 2 <br /> QC Batch ID: B227521 <br /> 1,2,3-Trichloropropane B227521-BS1 LCS 0.057800 0.050000 ug/L 116 80-120 3 <br /> QC Batch ID: B227522 <br /> 1,2,3-Trichloropropane B227522-BS1 LCS 0.058350 0.050000 ug/L 117 80-120 4 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226962-BS1 LCS SRL 524M 02/10/26 02/11/26 08:00 RCC MS-V16 1 <br /> 2 B227014-BS1 LCS SRL 524M 02/11/26 02/11/26 14:07 RCC MS-V16 1 <br /> 3 B227521-BS1 LCS SRL 524M 02/19/26 02/19/26 14:00 RCC MS-V16 1 <br /> 4 B227522-BS1 LCS SRL 524M 02/19/26 02/19/26 19:54 RCC MS-V16 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: 1001665034 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 122 of 147 <br />