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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/14/2026 9:09 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: Forward Landfill <br /> Project Manager: Dalia Rumani <br /> DHS Low Level 1,2,3-TCP by SRL 524M <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 Quals R# <br /> QC Batch ID: B226697 Used client sample: N <br /> 1,2,3-Trichloropropane DUP 2601789-02 ND ND ug/L 200 1 <br /> MS 2601789-02 ND 0.042930 0.050000 ug/L 85.9 70-130 2 <br /> MSD 2601789-02 ND 0.053900 0.050000 ug/L 22.7 108 30 70-130 3 <br /> QC Batch ID: B226771 Used client sample: Y-Description: MW-21, 02/04/2026 11:37 <br /> 1,2,3-Trichloropropane DUP 2601809-11 ND ND ug/L 200 4 <br /> MS 2601809-11 ND 0.054740 0.050000 ug/L 109 70-130 5 <br /> MSD 2601809-11 ND 0.053910 0.050000 ug/L 1.5 108 30 70-130 6 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226697-DUP1 DUP SRL 524M 02/05/26 02/05/26 18:12 RCC MS-V16 1 <br /> 2 B226697-MS1 MS SRL 524M 02/05/26 02/05/26 19:07 RCC MS-V16 1 <br /> 3 B226697-MSD1 MSD SRL 524M 02/05/26 02/05/26 19:35 RCC MS-V16 1 <br /> 4 B226771-DUP1 DUP SRL 524M 02/06/26 02/06/26 13:06 RCC MS-V16 1 <br /> 5 B226771-MS1 MS SRL 524M 02/06/26 02/06/26 14:01 RCC MS-V16 1 <br /> 6 B226771-MSD1 MSD SRL 524M 02/06/26 02/06/26 14:28 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: 1001665792 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 80 of 95 <br />