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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 15:42 <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 /> Water Analysis (General Chemistry) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals Run# <br /> QC Batch ID: B227009 <br /> Chloride B227009-BLK1 0.20900 mg/L 0.50 0.13 J 1 <br /> Nitrate as N B227009-BLK1 ND mg/L 0.10 0.024 1 <br /> Sulfate B227009-BLKI 0.28200 mg/L 1.0 0.14 J 1 <br /> QC Batch ID: B227109 <br /> Dissolved Calcium B227109-BLK1 ND mg/L 0.10 0.016 2 <br /> Dissolved Magnesium B227109-BLK1 ND mg/L 0.050 0.022 2 <br /> Dissolved Sodium B227109-BLK1 ND mg/L 1.0 0.051 2 <br /> Dissolved Potassium B227109-BLK1 ND mg/L 1.0 0.10 2 <br /> QC Batch ID: B227224 <br /> Dissolved Sulfide B227224-BLK1 ND mg/L 0.10 0.050 3 <br /> QC Batch ID: B227273 <br /> Bicarbonate B227273-BLK1 ND mg/L 5.0 5.0 4 <br /> Carbonate B227273-BLK1 ND mg/L 2.5 2.5 4 <br /> QC Batch ID: B227274 <br /> Bicarbonate B227274-BLK1 ND mg/L 5.0 5.0 5 <br /> Carbonate B227274-BLK1 ND mg/L 2.5 2.5 5 <br /> QC Batch ID: B227537 <br /> Dissolved Cyanide B227537-BLK1 ND mg/L 0.0050 0.0017 6 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B227009-BLK1 PB EPA-300.0 02/10/26 02/10/26 21:46 PRE IC7 1 <br /> 2 B227109-BLK1 PB EPA-6010B 02/12/26 02/12/2613:00 JRG ICP6 1 <br /> 3 B227224-BLK1 PB SM-450OSD 02/13/26 02/13/26 09:20 JT3 SPEC06 1 <br /> 4 B227273-BLK1 PB EPA-310.1 02/16/26 02/16/26 09:59 JMH2 MET-1 1 <br /> 5 B227274-BLK1 PB EPA-310.1 02/16/26 02/16/2612:14 JMH2 MET-1 1 <br /> 6 B227537-BLK1 PB EPA-9010C 02/19/26 02/19/2615:24 RC1 KONE-1 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: 1001665591 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 35 of 43 <br />