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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 /> Metals Analysis <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: B226810 <br /> Dissolved Barium B226810-BS1 LCS 408.50 400.00 ug/L 102 80-120 1 <br /> Dissolved Strontium B226810-BS1 LCS 511.80 500.00 ug/L 102 80-120 1 <br /> QC Batch ID: B226850 <br /> Total Iron B226850-BS2 LCS 1047.8 1000.0 ug/L 105 80-120 2 <br /> B226850-BSD2 LCSD 1025.6 1000.0 ug/L 103 2.1 80-120 20 3 <br /> Total Manganese B226850-BS1 LCS 527.10 500.00 ug/L 105 80-120 4 <br /> B226850-BSD1 LCSD 511.50 500.00 ug/L 102 3.0 80-120 20 5 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226810-BS1 LCS EPA-6010B 02/06/26 02/09/26 20:13 JEH ICP6 1 <br /> 2 B226850-BS2 LCS EPA-6010B 02/06/26 02/09/26 20:01 JEH ICP5 1 <br /> 3 B226850-BSD2 LCSD EPA-6010B 02/06/26 02/09/26 20:03 JEH ICP5 1 <br /> 4 B226850-BS1 LCS EPA-6010B 02/06/26 02/09/2615:50 JEH ICP5 1 <br /> 5 B226850-BSD1 LCSD EPA-6010B 02/06/26 02/09/2615:52 JEH ICP5 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 93 of 95 <br />