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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/14/2026 12:02 <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 /> 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: B226693 <br /> Dissolved Aluminum B226693-BS1 LCS 955.00 1000.0 ug/L 95.5 80-120 1 <br /> Dissolved Antimony B226693-BS1 LCS 384.10 400.00 ug/L 96.0 80-120 1 <br /> Dissolved Barium B226693-BS1 LCS 390.00 400.00 ug/L 97.5 80-120 1 <br /> Dissolved Beryllium B226693-BS1 LCS 197.84 200.00 ug/L 98.9 80-120 1 <br /> Dissolved Cadmium B226693-BS1 LCS 205.20 200.00 ug/L 103 80-120 1 <br /> Dissolved Chromium 13226693-1331 LCS 197.90 200.00 ug/L 99.0 80-120 1 <br /> Dissolved Cobalt B226693-BS1 LCS 203.80 200.00 ug/L 102 80-120 1 <br /> Dissolved Copper B226693-BS1 LCS 389.00 400.00 ug/L 97.2 80-120 1 <br /> Dissolved Iron B226693-BS1 LCS 992.60 1000.0 ug/L 99.3 80-120 1 <br /> Dissolved Lead B226693-BS1 LCS 404.30 400.00 ug/L 101 80-120 1 <br /> Dissolved Manganese B226693-BS1 LCS 497.10 500.00 ug/L 99.4 80-120 1 <br /> Dissolved Molybdenum B226693-BS1 LCS 202.90 200.00 ug/L 101 80-120 1 <br /> Dissolved Nickel B226693-BSI LCS 409.10 400.00 ug/L 102 80-120 1 <br /> Dissolved Selenium B226693-BSI LCS 200.10 200.00 ug/L 100 80-120 1 <br /> Dissolved Silver B226693-BS1 LCS 95.900 100.00 ug/L 95.9 80-120 1 <br /> Dissolved Strontium B226693-BS1 LCS 486.90 500.00 ug/L 97.4 80-120 1 <br /> Dissolved Tin B226693-BS1 LCS 204.40 200.00 ug/L 102 80-120 1 <br /> Dissolved Thallium 13226693-1331 LCS 401.00 400.00 ug/L 100 80-120 1 <br /> Dissolved Vanadium B226693-BS1 LCS 198.00 200.00 ug/L 99.0 80-120 1 <br /> Dissolved Zinc B226693-BS1 LCS 515.10 500.00 ug/L 103 80-120 1 <br /> QC Batch ID: B226706 <br /> Dissolved Arsenic B226706-BS1 LCS 95.553 100.00 ug/L 95.6 85-115 2 <br /> B226706-BSD1 LCSD 95.972 100.00 ug/L 96.0 0.4 85-115 20 3 <br /> QC Batch ID: B227049 <br /> Dissolved Mercury B227049-BS1 LCS 1.0925 1.0000 ug/L 109 85-115 4 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226693-BS1 LCS EPA-6010B 02/05/26 02/06/2617:06 JEH ICP5 1 <br /> 2 B226706-BS1 LCS EPA-200.8 02/05/26 02/05/2612:55 KSA ICPMS6 1 <br /> 3 B226706-BSD1 LCSD EPA-200.8 02/05/26 02/05/2612:57 KSA ICPMS6 1 <br /> 4 B227049-BS1 LCS EPA-7470A 02/11/26 02/11/2613:26 TMT CETAC4 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: 1001665842 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 105 of 109 <br />