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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/14/2026 11:46 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 1 Q26 Groundwater Monitoring Wells <br /> Project Manager: Dalia Rumani <br /> Metals Analysis <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals Run# <br /> QC Batch ID: B226888 <br /> Dissolved Aluminum B226888-BLK1 ND ug/L 50 23 1 <br /> Dissolved Antimony B226888-BLK1 ND ug/L 100 4.9 1 <br /> Dissolved Arsenic B226888-BLK1 ND ug/L 50 9.2 1 <br /> Dissolved Barium B226888-BLK1 ND ug/L 10 3.5 1 <br /> Dissolved Beryllium B226888-BLK1 ND ug/L 10 0.50 1 <br /> Dissolved Cadmium B226888-BLK1 ND ug/L 10 1.1 1 <br /> Dissolved Chromium B226888-BLK1 ND ug/L 10 1.0 1 <br /> Dissolved Cobalt B226888-BLK1 ND ug/L 50 1.1 1 <br /> Dissolved Copper B226888-BLKI 1.0000 ug/L 10 1.0 J 1 <br /> Dissolved Iron B226888-BLK1 ND ug/L 50 30 1 <br /> Dissolved Lead B226888-BLK1 ND ug/L 50 3.5 1 <br /> Dissolved Manganese B226888-BLK1 ND ug/L 10 4.0 1 <br /> Dissolved Molybdenum B226888-BLK1 ND ug/L 50 1.4 1 <br /> Dissolved Nickel B226888-BLK1 ND ug/L 10 2.4 1 <br /> Dissolved Selenium B226888-BLK1 ND ug/L 100 15 1 <br /> Dissolved Silver B226888-BLK1 ND ug/L 10 1.2 1 <br /> Dissolved Strontium B226888-BLK1 ND ug/L 10 1.0 1 <br /> Dissolved Tin B226888-BLK1 ND ug/L 50 7.2 1 <br /> Dissolved Thallium B226888-BLK1 ND ug/L 100 10 1 <br /> Dissolved Vanadium B226888-BLK1 ND ug/L 10 2.2 1 <br /> Dissolved Zinc B226888-BLK1 ND ug/L 10 5.0 1 <br /> QC Batch ID: B227448 <br /> Dissolved Mercury B227448-BLK1 ND ug/L 0.20 0.022 2 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226888-BLK1 PB EPA-6010B 02/09/26 02/09/26 20:50 JEH ICP6 1 <br /> 2 B227448-BLK1 PB EPA-7470A 02/18/26 02/18/2616:29 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 1001665835 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 112 of 116 <br />