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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 11:08 <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 - 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: B226549 Used client sample: N <br /> 1,2,3-Trichloropropane DUP 2601495-13 ND ND ug/L 200 1 <br /> MS 2601495-13 ND 0.056740 0.050000 ug/L 113 70-130 2 <br /> MSD 2601495-13 ND 0.058260 0.050000 ug/L 2.6 117 30 70-130 3 <br /> QC Batch ID: B226550 Used client sample: Y-Description: MW-15, 01/30/2026 13:47 <br /> 1,2,3-Trichloropropane DUP 2601557-02 ND ND ug/L 200 4 <br /> MS 2601557-02 ND 0.050850 0.050000 ug/L 102 70-130 5 <br /> MSD 2601557-02 ND 0.057360 0.050000 ug/L 12.0 115 30 70-130 6 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226549-DUP1 DUP SRL 524M 02/03/26 02/03/26 16:40 RCC MS-V16 1 <br /> 2 B226549-MS1 MS SRL 524M 02/03/26 02/03/26 17:35 RCC MS-V16 1 <br /> 3 B226549-MSD1 MSD SRL 524M 02/03/26 02/03/26 18:03 RCC MS-V16 1 <br /> 4 B226550-DUP1 DUP SRL 524M 02/03/26 02/03/26 22:34 RCC MS-V16 1 <br /> 5 B226550-MS1 MS SRL 524M 02/03/26 02/03/26 23:28 RCC MS-V16 1 <br /> 6 B226550-MSD1 MSD SRL 524M 02/03/26 02/03/26 23:55 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: 1001665296 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 69 of 84 <br />