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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 /> 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: B226623 <br /> Chloride B226623-BLK1 0.25200 mg/L 0.50 0.13 J,M02 1 <br /> Nitrate as N B226623-BLK1 ND mg/L 0.10 0.024 1 <br /> Sulfate B226623-BLK7 0.15700 mg/L 1.0 0.14 J 1 <br /> QC Batch ID: B226636 <br /> Chloride B226636-BLK1 0.19400 mg/L 0.50 0.13 J 2 <br /> Nitrate as N B226636-BLK1 ND mg/L 0.10 0.024 2 <br /> Sulfate B226636-BLKI 0.27400 mg/L 1.0 0.14 J 2 <br /> QC Batch ID: B226693 <br /> Dissolved Calcium B226693-BLK1 ND mg/L 0.10 0.016 3 <br /> Dissolved Magnesium B226693-BLK1 ND mg/L 0.050 0.022 3 <br /> Dissolved Sodium B226693-BLK1 ND mg/L 1.0 0.051 3 <br /> Dissolved Potassium B226693-BLK1 ND mg/L 1.0 0.10 3 <br /> QC Batch ID: B226868 <br /> Bicarbonate B226868-BLK1 ND mg/L 5.0 5.0 4 <br /> Carbonate B226868-BLK1 ND mg/L 2.5 2.5 4 <br /> Total Alkalinity as CaCC3 B226868-BLK1 ND mg/L 4.1 4.1 4 <br /> QC Batch ID: B226869 <br /> Bicarbonate B226869-BLK1 ND mg/L 5.0 5.0 5 <br /> Carbonate B226869-BLK1 ND mg/L 2.5 2.5 5 <br /> Total Alkalinity as CaCO3 B226869-BLK1 ND mg/L 4.1 4.1 5 <br /> QC Batch ID: B226905 <br /> Total Dissolved Solids @ 180 C B226905-BLK1 ND mg/L 10 5.0 6 <br /> QC Batch ID: B226906 <br /> Total Dissolved Solids @ 180 C B226906-BLK1 ND mg/L 10 5.0 7 <br /> QC Batch ID: B226972 <br /> Dissolved Sulfide B226972-BLK1 ND mg/L 0.10 0.050 8 <br /> QC Batch ID: B226973 <br /> Dissolved Sulfide B226973-BLK1 ND mg/L 0.10 0.050 9 <br /> QC Batch ID: B226974 <br /> Dissolved Sulfide B226974-BLK1 ND mg/L 0.10 0.050 10 <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 97 of 109 <br />